From: huweiguo <hwg@rock-chips.com>
Date: Tue, 20 Dec 2016 06:40:46 +0000 (+0800)
Subject: add realtek bt part
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=f6abe6dcef2da72e86922f72c5ab90fe1f6a84b7;p=GitHub%2FLineageOS%2FG12%2Fandroid_hardware_realtek.git

add realtek bt part

Change-Id: Ib7a34d1538bb6dc537ba0c575cd827775c3f1ac4
---

diff --git a/rtkbt/Android.mk b/rtkbt/Android.mk
new file mode 100755
index 0000000..720e5e4
--- /dev/null
+++ b/rtkbt/Android.mk
@@ -0,0 +1,4 @@
+ifeq ($(BOARD_HAVE_BLUETOOTH_RTK),true)
+LOCAL_PATH := $(call my-dir)
+include $(call all-subdir-makefiles)
+endif
diff --git a/rtkbt/addon/Android.mk b/rtkbt/addon/Android.mk
new file mode 100755
index 0000000..295b94e
--- /dev/null
+++ b/rtkbt/addon/Android.mk
@@ -0,0 +1,4 @@
+ifneq ($(BOARD_HAVE_BLUETOOTH_RTK_ADDON),)
+LOCAL_PATH := $(call my-dir)
+include $(foreach item,$(BOARD_HAVE_BLUETOOTH_RTK_ADDON),$(LOCAL_PATH)/$(item)/Android.mk)
+endif
diff --git a/rtkbt/addon/AudioRecordWav/Android.mk b/rtkbt/addon/AudioRecordWav/Android.mk
new file mode 100755
index 0000000..bd30b5b
--- /dev/null
+++ b/rtkbt/addon/AudioRecordWav/Android.mk
@@ -0,0 +1,4 @@
+LOCAL_PATH := $(call my-dir)
+
+include $(call all-subdir-makefiles)
+
diff --git a/rtkbt/addon/AudioRecordWav/AudioRecordWav/Android.mk b/rtkbt/addon/AudioRecordWav/AudioRecordWav/Android.mk
new file mode 100755
index 0000000..c88b671
--- /dev/null
+++ b/rtkbt/addon/AudioRecordWav/AudioRecordWav/Android.mk
@@ -0,0 +1,10 @@
+LOCAL_PATH := $(call my-dir)
+include $(CLEAR_VARS)
+# Build all java files in the java subdirectory
+LOCAL_MODULE_TAGS := optional
+LOCAL_SRC_FILES := $(call all-subdir-java-files)
+# Name of the APK to build
+LOCAL_PACKAGE_NAME := rtkbtAudioRecordWav
+#LOCAL_CERTIFICATE := platform
+# Tell it to build an APK
+include $(BUILD_PACKAGE)
diff --git a/rtkbt/addon/AudioRecordWav/AudioRecordWav/AndroidManifest.xml b/rtkbt/addon/AudioRecordWav/AudioRecordWav/AndroidManifest.xml
new file mode 100755
index 0000000..187bef6
--- /dev/null
+++ b/rtkbt/addon/AudioRecordWav/AudioRecordWav/AndroidManifest.xml
@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.example.audiorecordwav"
+    android:versionCode="1"
+    android:versionName="1.0" >
+
+    <uses-sdk
+        android:minSdkVersion="8"
+        android:targetSdkVersion="21" />
+    
+   <uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS" />
+    <uses-permission android:name="android.permission.RECORD_AUDIO" />
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
+    <uses-permission android:name="android.permission.BROADCAST_STICKY" />
+    <uses-permission android:name="android.permission.BLUETOOTH" />
+    <uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />
+    <uses-permission android:name="android.permission.INTERNET" />
+    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
+
+    <application
+        android:allowBackup="true"
+        android:icon="@drawable/ic_launcher"
+        android:label="@string/app_name"
+        android:theme="@style/AppTheme" 
+        android:configChanges="keyboard|orientation|keyboardHidden|screenSize">
+        <activity
+            android:name=".MainActivity"
+            android:label="@string/app_name" >
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+				
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>
diff --git a/rtkbt/addon/AudioRecordWav/AudioRecordWav/res/drawable-hdpi/ic_launcher.png b/rtkbt/addon/AudioRecordWav/AudioRecordWav/res/drawable-hdpi/ic_launcher.png
new file mode 100755
index 0000000..288b665
Binary files /dev/null and b/rtkbt/addon/AudioRecordWav/AudioRecordWav/res/drawable-hdpi/ic_launcher.png differ
diff --git a/rtkbt/addon/AudioRecordWav/AudioRecordWav/res/drawable-hdpi/ic_voice_search.png b/rtkbt/addon/AudioRecordWav/AudioRecordWav/res/drawable-hdpi/ic_voice_search.png
new file mode 100755
index 0000000..66d14ae
Binary files /dev/null and b/rtkbt/addon/AudioRecordWav/AudioRecordWav/res/drawable-hdpi/ic_voice_search.png differ
diff --git a/rtkbt/addon/AudioRecordWav/AudioRecordWav/res/drawable-hdpi/ic_voice_search_api_holo_light.png b/rtkbt/addon/AudioRecordWav/AudioRecordWav/res/drawable-hdpi/ic_voice_search_api_holo_light.png
new file mode 100755
index 0000000..d2b2d21
Binary files /dev/null and b/rtkbt/addon/AudioRecordWav/AudioRecordWav/res/drawable-hdpi/ic_voice_search_api_holo_light.png differ
diff --git a/rtkbt/addon/AudioRecordWav/AudioRecordWav/res/drawable-mdpi/ic_launcher.png b/rtkbt/addon/AudioRecordWav/AudioRecordWav/res/drawable-mdpi/ic_launcher.png
new file mode 100755
index 0000000..6ae570b
Binary files /dev/null and b/rtkbt/addon/AudioRecordWav/AudioRecordWav/res/drawable-mdpi/ic_launcher.png differ
diff --git a/rtkbt/addon/AudioRecordWav/AudioRecordWav/res/drawable-xhdpi/ic_launcher.png b/rtkbt/addon/AudioRecordWav/AudioRecordWav/res/drawable-xhdpi/ic_launcher.png
new file mode 100755
index 0000000..d4fb7cd
Binary files /dev/null and b/rtkbt/addon/AudioRecordWav/AudioRecordWav/res/drawable-xhdpi/ic_launcher.png differ
diff --git a/rtkbt/addon/AudioRecordWav/AudioRecordWav/res/drawable-xxhdpi/ic_launcher.png b/rtkbt/addon/AudioRecordWav/AudioRecordWav/res/drawable-xxhdpi/ic_launcher.png
new file mode 100755
index 0000000..85a6081
Binary files /dev/null and b/rtkbt/addon/AudioRecordWav/AudioRecordWav/res/drawable-xxhdpi/ic_launcher.png differ
diff --git a/rtkbt/addon/AudioRecordWav/AudioRecordWav/res/layout/activity_main.xml b/rtkbt/addon/AudioRecordWav/AudioRecordWav/res/layout/activity_main.xml
new file mode 100755
index 0000000..4245fe8
--- /dev/null
+++ b/rtkbt/addon/AudioRecordWav/AudioRecordWav/res/layout/activity_main.xml
@@ -0,0 +1,42 @@
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context="${relativePackage}.${activityClass}" >
+
+    <ProgressBar
+        android:id="@+id/progressBar1"
+        style="?android:attr/progressBarStyleLarge"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_below="@+id/start"
+        android:layout_centerHorizontal="true"
+        android:layout_marginTop="19dp" />
+
+    <TextView
+        android:id="@+id/textView1"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_centerHorizontal="true"
+        android:layout_centerVertical="true"
+        android:text="@string/text_default_text"
+        android:textAppearance="?android:attr/textAppearanceLarge" />
+
+    <Button
+        android:id="@+id/start"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_below="@+id/textView1"
+        android:layout_centerHorizontal="true"
+        android:layout_marginTop="17dp"
+        android:text="@string/button_default_text" />
+
+    <ImageView
+        android:id="@+id/imageView1"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_above="@+id/textView1"
+        android:layout_centerHorizontal="true"
+        android:src="@drawable/ic_voice_search" />
+
+</RelativeLayout>
\ No newline at end of file
diff --git a/rtkbt/addon/AudioRecordWav/AudioRecordWav/res/values/strings.xml b/rtkbt/addon/AudioRecordWav/AudioRecordWav/res/values/strings.xml
new file mode 100755
index 0000000..d10bce0
--- /dev/null
+++ b/rtkbt/addon/AudioRecordWav/AudioRecordWav/res/values/strings.xml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+
+    <string name="app_name">AudioRecordWav</string>
+    <string name="hello_world">Hello world!</string>
+    <string name="button_default_text">REPLAY</string>
+    <string name="text_default_text">Press And Hold</string>
+
+</resources>
diff --git a/rtkbt/addon/AudioRecordWav/AudioRecordWav/res/values/styles.xml b/rtkbt/addon/AudioRecordWav/AudioRecordWav/res/values/styles.xml
new file mode 100755
index 0000000..3fe313c
--- /dev/null
+++ b/rtkbt/addon/AudioRecordWav/AudioRecordWav/res/values/styles.xml
@@ -0,0 +1,6 @@
+<resources>
+    <!-- Application theme. -->
+    <style name="AppTheme" parent="android:Theme.Light">
+        <!-- All customizations that are NOT specific to a particular API-level can go here. -->
+    </style>
+</resources>
diff --git a/rtkbt/addon/AudioRecordWav/AudioRecordWav/src/com/example/audiorecordwav/MainActivity.java b/rtkbt/addon/AudioRecordWav/AudioRecordWav/src/com/example/audiorecordwav/MainActivity.java
new file mode 100755
index 0000000..d923420
--- /dev/null
+++ b/rtkbt/addon/AudioRecordWav/AudioRecordWav/src/com/example/audiorecordwav/MainActivity.java
@@ -0,0 +1,576 @@
+package com.example.audiorecordwav;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+
+import android.app.Activity;
+import android.app.ProgressDialog;
+import android.content.Context;
+import android.graphics.PixelFormat;
+import android.media.AudioFormat;
+import android.media.AudioManager;
+import android.media.AudioRecord;
+import android.media.AudioTrack;
+import android.media.MediaPlayer;
+import android.media.MediaPlayer.OnCompletionListener;
+import android.media.MediaRecorder;
+import android.net.LocalServerSocket;
+import android.net.LocalSocket;
+import android.net.LocalSocketAddress;
+import android.os.Bundle;
+import android.os.Handler;
+import android.os.Message;
+import android.util.Log;
+import android.view.KeyEvent;
+import android.view.Menu;
+import android.view.MenuItem;
+import android.view.View;
+import android.view.View.OnClickListener;
+import android.view.Window;
+import android.view.WindowManager;
+import android.widget.Button;
+import android.widget.ImageView;
+import android.widget.ProgressBar;
+import android.widget.TextView;
+
+
+public class MainActivity extends Activity {
+	
+	private static String TAG = "AudioRecordWav";
+	private int audioSource = MediaRecorder.AudioSource.CAMCORDER;
+	private static int sampleRateInHz = 16000;
+	private static int channelConfig = AudioFormat.CHANNEL_IN_MONO;
+	private static int audioFormat = AudioFormat.ENCODING_PCM_16BIT;
+	private int bufferSizeInBytesAudioRecord = 0;
+	private Button mReplayBtn;
+	private Button Stop;
+	private AudioRecord audioRecord;
+	private boolean isRecord = false;
+	private static final String AudioName = "/sdcard/orig.raw";
+	private static final String NewAudioName = "/sdcard/new.wav";
+	
+	private boolean keyLongPressFlag = false;
+	
+	private static final boolean GOOGLEVOICE = false;
+	private static boolean VoiceKeyDown = false;
+	
+	
+	InputStream fis;
+    OutputStream fos;
+    
+    private MediaPlayer mPlayer = null;
+    private ProgressBar mProgressBar = null;
+    private ImageView mVoiceImg = null;
+    private TextView mHintText = null;
+    private ProgressDialog recordProgressDialog = null;
+    private PlayingThread workThread;
+    
+    private static final String BUTTON_TEXT_RECORDING = "RECORDING NOW";
+    private static final String BUTTON_TEXT_REPLAY = "REPLAY";    
+    private static final String BUTTON_TEXT_REPLAYING = "REPLAYING NOW";
+    
+    private static final int MSG_RECORD_STARTED = 1;
+    private static final int MSG_RECORD_STOPPED = 2;
+    private static final int MSG_RECORD_TIMEOUT = 3;
+    private static final int MSG_PLAY_STARTED = 4;
+    private static final int MSG_PLAY_STOPPED = 5;
+	
+    private Handler mHandler = new Handler() {
+
+		@Override
+		public void handleMessage(Message msg) {
+			// TODO Auto-generated method stub
+			switch (msg.what) {
+				case MSG_RECORD_STARTED:
+					Log.d(TAG, "thread " + Thread.currentThread().getId() + " : OK, just mReplayBtn your work");
+					if(mReplayBtn != null) {
+						mReplayBtn.setText(BUTTON_TEXT_RECORDING);
+						mReplayBtn.setEnabled(false);
+					}
+					
+					if(mProgressBar != null)
+						mProgressBar.setVisibility(View.VISIBLE);
+					break;
+					
+				case MSG_RECORD_STOPPED:
+					Log.d(TAG, "stop msg");
+
+					if(mProgressBar != null)
+						mProgressBar.setVisibility(View.INVISIBLE);
+				
+					if(mReplayBtn != null) {
+						mReplayBtn.setEnabled(true);
+						mReplayBtn.setText(BUTTON_TEXT_REPLAY);
+					}
+				
+					stopRecord();
+					break;
+				case MSG_RECORD_TIMEOUT:
+					Log.d(TAG, "time to stop recording");
+					isRecord = false;
+					break;
+				case MSG_PLAY_STARTED:
+					Log.d(TAG, "thread " + Thread.currentThread().getId() + " : OK, just mReplayBtn your work");
+					if(mReplayBtn != null) {
+						mReplayBtn.setEnabled(false);
+						mReplayBtn.setText(BUTTON_TEXT_REPLAYING);
+					}
+					break;
+					
+				case MSG_PLAY_STOPPED:
+					if(mReplayBtn != null) {
+						mReplayBtn.setText(BUTTON_TEXT_REPLAY);
+						mReplayBtn.setEnabled(true);
+					}
+					break;
+					
+				default:
+					Log.d(TAG, "Unknown Message !!!");
+			}
+			super.handleMessage(msg);
+		}
+    	
+    };
+    
+    private class LocalMPOnCompletionListener implements OnCompletionListener {
+
+		@Override
+		public void onCompletion(MediaPlayer mp) {
+			// TODO Auto-generated method stub
+			Log.d(TAG, "release the MediaPlayer!!!");
+			mp.release();
+			//mReplayBtn.setEnabled(true);
+			if(mHandler != null) {
+				Message msg = mHandler.obtainMessage(MSG_PLAY_STOPPED);
+				mHandler.sendMessage(msg);
+			}
+		}
+    	
+    }
+    
+    private class PlayingThread extends Thread {
+
+		@Override
+		public void run() {
+			// TODO Auto-generated method stub
+			super.run();
+			
+			try {
+				Thread.sleep(1000);
+			} catch (InterruptedException e) {
+				// TODO Auto-generated catch block
+				e.printStackTrace();
+			}
+			
+			mPlayer = new MediaPlayer();
+			if(mPlayer != null) {
+				
+				Message msg = mHandler.obtainMessage(MSG_PLAY_STARTED);
+				mHandler.sendMessage(msg);
+				
+				try {
+					mPlayer.setOnCompletionListener( new LocalMPOnCompletionListener() );
+					mPlayer.setDataSource(NewAudioName);
+					Log.d(TAG, "filename: "+ NewAudioName);
+					mPlayer.prepare();
+					mPlayer.start();
+				} catch (IOException e) {
+					Log.e(TAG, "prepare() failed");
+				}
+			}else
+				Log.d(TAG, "MediaPlayer is null!");
+			
+			
+		}
+    	
+    }
+    
+    
+	@Override
+	public boolean onKeyDown(int keyCode, KeyEvent event) {
+		// TODO Auto-generated method stub
+		switch(keyCode)
+		{
+		case KeyEvent.KEYCODE_F5:
+			//Log.d(TAG, "key press F5" + event.getRepeatCount());
+			if (event.getRepeatCount() == 0)
+			{
+				Log.d(TAG, "Thread num: " + Thread.currentThread().getId());
+				//Log.d(TAG, "mReplayBtn Tracking");
+				
+				//recordProgressDialog.show();
+				
+				startRecord();
+
+			} else {
+				VoiceKeyDown = true;
+			}
+			break;
+		default:
+			Log.d(TAG, "key short press" + event.getRepeatCount());
+			break;
+		}
+		return super.onKeyDown(keyCode, event);
+	}
+/*
+	@Override
+	public boolean onKeyLongPress(int keyCode, KeyEvent event) {
+		// TODO Auto-generated method stub
+		switch(keyCode)
+		{
+		case KeyEvent.KEYCODE_F5:
+			Log.d(TAG, "key long press F5, mReplayBtn recording");
+			mReplayBtnRecord();
+			keyLongPressFlag = true;
+			return true;
+		default:
+			Log.d(TAG, "key long press");
+			break;
+		}
+		return super.onKeyLongPress(keyCode, event);
+	}
+*/
+	@Override
+	public boolean onKeyUp(int keyCode, KeyEvent event) {
+		// TODO Auto-generated method stub
+		switch(keyCode)
+		{
+		case KeyEvent.KEYCODE_F5:
+			Log.d(TAG, "key release F5");
+			if (!keyLongPressFlag)
+			{
+//				if(mProgressBar != null)
+//					mProgressBar.setVisibility(View.INVISIBLE);
+//				
+//				Log.d(TAG, "Thread num: " + Thread.currentThread());
+//				if(mReplayBtn != null) {
+//					mReplayBtn.setEnabled(true);
+//					mReplayBtn.setText(BUTTON_TEXT_REPLAY);
+//				}
+				
+//				stopRecord();
+				isRecord = false;
+				keyLongPressFlag = false;
+			}
+			
+			break;
+		default:
+			Log.d(TAG, "key release");
+			break;
+		}
+		
+		return super.onKeyUp(keyCode, event);
+	}
+
+	
+
+	public void onCreate(Bundle savedInstanceState) {
+		
+		getWindow().setFormat(PixelFormat.TRANSLUCENT);
+		requestWindowFeature(Window.FEATURE_NO_TITLE);
+		getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
+		setContentView(R.layout.activity_main);
+		init();
+		Log.d(TAG, "Thread num: " + Thread.currentThread());
+		mVoiceImg = (ImageView)findViewById(R.id.imageView1);
+		if(mVoiceImg!=null) {
+			double mWidth = mVoiceImg.getScaleX();
+			double mHeight = mVoiceImg.getScaleY();
+		}
+		
+		mHintText = (TextView)findViewById(R.id.textView1);
+		if(mHintText != null)
+			mHintText.setText("Press And Hold");
+		super.onCreate(savedInstanceState);
+	}
+
+	private void init() {
+		mReplayBtn = (Button) this.findViewById(R.id.start);
+		mReplayBtn.setOnClickListener(new TestAudioListener());
+		mProgressBar = (ProgressBar)this.findViewById(R.id.progressBar1);
+		mProgressBar.setVisibility(View.INVISIBLE);
+		/*
+		recordProgressDialog = new ProgressDialog(MainActivity.this);
+		recordProgressDialog.setTitle("AudioRecordWav");
+		recordProgressDialog.setMessage("Recording Now ...");
+		recordProgressDialog.setCancelable(true);
+		*/
+		
+		//creatAudioRecord();
+	}
+
+	private void creatAudioRecord() {
+		bufferSizeInBytesAudioRecord = AudioRecord.getMinBufferSize(sampleRateInHz,
+				channelConfig, audioFormat);
+		Log.e(TAG, "AudioRecord getMinBufferSize"+bufferSizeInBytesAudioRecord);
+		audioRecord = new AudioRecord(audioSource, sampleRateInHz,
+				channelConfig, audioFormat, bufferSizeInBytesAudioRecord * 10);
+		
+		if (audioRecord == null)
+			Log.d(TAG, "can't open audioRecord");
+		
+	}
+
+	class TestAudioListener implements OnClickListener {
+
+		@Override
+		public void onClick(View v) {
+			Log.d(TAG, "mReplayBtn playing!!!");
+			if (v == mReplayBtn) {
+				if(mHandler != null) {
+					Message msg = mHandler.obtainMessage(MSG_PLAY_STARTED);
+					mHandler.sendMessage(msg);
+				}
+				mPlayer = new MediaPlayer();
+		        try {
+		        	mPlayer.setOnCompletionListener( new LocalMPOnCompletionListener() );
+		            mPlayer.setDataSource(NewAudioName);
+		            Log.d(TAG, "filename: "+ NewAudioName);
+		            mPlayer.prepare();
+		            mPlayer.start();
+		        } catch (IOException e) {
+		            Log.e(TAG, "prepare() failed");
+		        }
+			}
+			if (v == Stop) {
+				 mPlayer.release();
+			        mPlayer = null;
+			}
+
+		}
+
+
+	}
+
+	private void startRecord() {
+		while(audioRecord == null)
+			creatAudioRecord();
+		//new Thread(new AudioRecordThread()).mReplayBtn();
+		if(mHandler != null) {
+			Message msg = mHandler.obtainMessage(MSG_RECORD_STARTED);
+			mHandler.sendMessage(msg);
+		}
+		audioRecord.startRecording();
+		isRecord = true;
+
+		new Thread(new AudioRecordThread()).start();
+		
+	}
+
+	private void stopRecord() {
+		if (audioRecord != null) {
+			Log.d(TAG, "Stop record");
+			audioRecord.stop();
+			audioRecord.release();
+			audioRecord = null;
+		}
+		
+		//mHandler.sendMessage(mHandler.obtainMessage(MSG_STOP_RECORD));
+		
+		/*
+		try {
+			Thread.sleep(3000);
+		} catch (InterruptedException e) {
+			// TODO Auto-generated catch block
+			e.printStackTrace();
+		}
+		*/
+		workThread = new PlayingThread();
+		workThread.start();
+		
+		//if(mPlayer == null) {
+
+//		mPlayer = new MediaPlayer();
+//		try {
+//			mPlayer.setOnCompletionListener(new OnCompletionListener() {
+//				
+//				@Override
+//				public void onCompletion(MediaPlayer mp) {
+//					// TODO Auto-generated method stub
+//					Log.d(TAG, "release the MediaPlayer!!!");
+//					mp.release();
+//					mReplayBtn.setEnabled(true);
+//				}
+//			});
+//			mPlayer.setDataSource(NewAudioName);
+//			Log.d(TAG, "filename: "+ NewAudioName);
+//			mPlayer.prepare();
+//			mPlayer.mReplayBtn();
+//		} catch (IOException e) {
+//			Log.e(TAG, "prepare() failed");
+//		}
+		
+		//}
+	}
+
+	private void close() {
+		if (audioRecord != null) {
+			System.out.println("stopRecord");
+			isRecord = false;
+			audioRecord.stop();
+			audioRecord.release();
+			audioRecord = null;
+		}
+		
+	}
+	
+	private class TimerThread implements Runnable {
+
+		@Override
+		public void run() {
+			// TODO Auto-generated method stub
+			try {
+				Thread.sleep(5000);
+			} catch (InterruptedException e) {
+				// TODO Auto-generated catch block
+				e.printStackTrace();
+			}
+			
+			Log.d(TAG, "recording timeout, stop it!");
+			Message msg = mHandler.obtainMessage(MSG_RECORD_TIMEOUT);
+			mHandler.sendMessage(msg);
+		}
+		
+	}
+
+	class AudioRecordThread implements Runnable {
+		@Override
+		public void run() {
+			Log.d(TAG, "Thread enter");
+			writeDateTOFile();
+			copyWaveFile(AudioName, NewAudioName);
+			Message msg = mHandler.obtainMessage(MSG_RECORD_STOPPED);
+			mHandler.sendMessage(msg);
+			Log.d(TAG, "recording stopped!!!");
+		}
+	}
+
+	private void writeDateTOFile() {
+		byte[] audiodata = new byte[bufferSizeInBytesAudioRecord * 2];
+		FileOutputStream fos = null;
+		int readsize = 0;
+		long totalSize = 0;
+		try {
+			File file = new File(AudioName);
+			if (file.exists()) {
+				file.delete();
+			}
+			fos = new FileOutputStream(file);
+		} catch (Exception e) {
+			e.printStackTrace();
+		}
+		while (isRecord == true) {
+
+			//readsize = audioRecord.read(audiodata, 0, bufferSizeInBytesAudioRecord * 2);
+			readsize = audioRecord.read(audiodata, 0, bufferSizeInBytesAudioRecord * 2);
+			totalSize += readsize;
+
+			//Log.d(TAG, "readsize: " + readsize);
+			
+			if (AudioRecord.ERROR_INVALID_OPERATION != readsize) {
+				try {
+					fos.write(audiodata);
+				} catch (IOException e) {
+					e.printStackTrace();
+				}
+			}
+			
+		}
+		
+		Log.d(TAG, "total size: " + totalSize);
+		try {
+			fos.close();
+		} catch (IOException e) {
+			e.printStackTrace();
+		}
+	}
+
+	private void copyWaveFile(String inFilename, String outFilename) {
+		FileInputStream in = null;
+		FileOutputStream out = null;
+		long totalAudioLen = 0;
+		long totalDataLen = totalAudioLen + 36;
+		long longSampleRate = sampleRateInHz;
+		int channels = 1;
+		long byteRate = 16 * sampleRateInHz * channels / 8;
+		byte[] data = new byte[bufferSizeInBytesAudioRecord];
+		try {
+			in = new FileInputStream(inFilename);
+			out = new FileOutputStream(outFilename);
+			totalAudioLen = in.getChannel().size();
+			totalDataLen = totalAudioLen + 36;
+			WriteWaveFileHeader(out, totalAudioLen, totalDataLen,
+					longSampleRate, channels, byteRate);
+			while (in.read(data) != -1) {
+				out.write(data);
+			}
+			in.close();
+			out.close();
+		} catch (FileNotFoundException e) {
+			e.printStackTrace();
+		} catch (IOException e) {
+			e.printStackTrace();
+		}
+	}
+	private void WriteWaveFileHeader(FileOutputStream out, long totalAudioLen,
+			long totalDataLen, long longSampleRate, int channels, long byteRate)
+			throws IOException {
+		byte[] header = new byte[44];
+		header[0] = 'R'; // RIFF/WAVE header
+		header[1] = 'I';
+		header[2] = 'F';
+		header[3] = 'F';
+		header[4] = (byte) (totalDataLen & 0xff);
+		header[5] = (byte) ((totalDataLen >> 8) & 0xff);
+		header[6] = (byte) ((totalDataLen >> 16) & 0xff);
+		header[7] = (byte) ((totalDataLen >> 24) & 0xff);
+		header[8] = 'W';
+		header[9] = 'A';
+		header[10] = 'V';
+		header[11] = 'E';
+		header[12] = 'f'; // 'fmt ' chunk
+		header[13] = 'm';
+		header[14] = 't';
+		header[15] = ' ';
+		header[16] = 16; // 4 bytes: size of 'fmt ' chunk
+		header[17] = 0;
+		header[18] = 0;
+		header[19] = 0;
+		header[20] = 1; // format = 1
+		header[21] = 0;
+		header[22] = (byte) channels;
+		header[23] = 0;
+		header[24] = (byte) (longSampleRate & 0xff);
+		header[25] = (byte) ((longSampleRate >> 8) & 0xff);
+		header[26] = (byte) ((longSampleRate >> 16) & 0xff);
+		header[27] = (byte) ((longSampleRate >> 24) & 0xff);
+		header[28] = (byte) (byteRate & 0xff);
+		header[29] = (byte) ((byteRate >> 8) & 0xff);
+		header[30] = (byte) ((byteRate >> 16) & 0xff);
+		header[31] = (byte) ((byteRate >> 24) & 0xff);
+		header[32] = (byte) (2 * 16 / 8); // block align
+		header[33] = 0;
+		header[34] = 16; // bits per sample
+		header[35] = 0;
+		header[36] = 'd';
+		header[37] = 'a';
+		header[38] = 't';
+		header[39] = 'a';
+		header[40] = (byte) (totalAudioLen & 0xff);
+		header[41] = (byte) ((totalAudioLen >> 8) & 0xff);
+		header[42] = (byte) ((totalAudioLen >> 16) & 0xff);
+		header[43] = (byte) ((totalAudioLen >> 24) & 0xff);
+		out.write(header, 0, 44);
+	}
+
+	@Override
+	protected void onDestroy() {
+		close();
+		super.onDestroy();
+	}
+}
diff --git a/rtkbt/addon/AudioRecordWav/addon.mk b/rtkbt/addon/AudioRecordWav/addon.mk
new file mode 100755
index 0000000..4b7672e
--- /dev/null
+++ b/rtkbt/addon/AudioRecordWav/addon.mk
@@ -0,0 +1,3 @@
+PRODUCT_PACKAGES += \
+    rtkbtAudioRecordWav
+
diff --git a/rtkbt/addon/BluetoothRTK3ddService/Android.mk b/rtkbt/addon/BluetoothRTK3ddService/Android.mk
new file mode 100755
index 0000000..bd30b5b
--- /dev/null
+++ b/rtkbt/addon/BluetoothRTK3ddService/Android.mk
@@ -0,0 +1,4 @@
+LOCAL_PATH := $(call my-dir)
+
+include $(call all-subdir-makefiles)
+
diff --git a/rtkbt/addon/BluetoothRTK3ddService/BluetoothRTK3ddService/Android.mk b/rtkbt/addon/BluetoothRTK3ddService/BluetoothRTK3ddService/Android.mk
new file mode 100755
index 0000000..4631834
--- /dev/null
+++ b/rtkbt/addon/BluetoothRTK3ddService/BluetoothRTK3ddService/Android.mk
@@ -0,0 +1,11 @@
+app := BluetoothRTK3ddService
+LOCAL_PATH := $(call my-dir)
+include $(CLEAR_VARS)
+LOCAL_MODULE := ${app}
+LOCAL_MODULE_SUFFIX := .apk
+LOCAL_MODULE_CLASS := APPS
+LOCAL_MODULE_TAGS := optional
+LOCAL_CERTIFICATE := platform
+LOCAL_SRC_FILES := ${app}.apk
+include $(BUILD_PREBUILT)
+
diff --git a/rtkbt/addon/BluetoothRTK3ddService/BluetoothRTK3ddService/BluetoothRTK3ddService.apk b/rtkbt/addon/BluetoothRTK3ddService/BluetoothRTK3ddService/BluetoothRTK3ddService.apk
new file mode 100755
index 0000000..f536a06
Binary files /dev/null and b/rtkbt/addon/BluetoothRTK3ddService/BluetoothRTK3ddService/BluetoothRTK3ddService.apk differ
diff --git a/rtkbt/addon/BluetoothRTK3ddService/addon.mk b/rtkbt/addon/BluetoothRTK3ddService/addon.mk
new file mode 100755
index 0000000..68fa302
--- /dev/null
+++ b/rtkbt/addon/BluetoothRTK3ddService/addon.mk
@@ -0,0 +1,3 @@
+PRODUCT_PACKAGES += \
+    BluetoothRTK3ddService
+
diff --git a/rtkbt/addon/basic/Android.mk b/rtkbt/addon/basic/Android.mk
new file mode 100755
index 0000000..bd30b5b
--- /dev/null
+++ b/rtkbt/addon/basic/Android.mk
@@ -0,0 +1,4 @@
+LOCAL_PATH := $(call my-dir)
+
+include $(call all-subdir-makefiles)
+
diff --git a/rtkbt/addon/basic/addon.mk b/rtkbt/addon/basic/addon.mk
new file mode 100755
index 0000000..75c5eb6
--- /dev/null
+++ b/rtkbt/addon/basic/addon.mk
@@ -0,0 +1,2 @@
+PRODUCT_COPY_FILES += \
+    $(LOCAL_PATH)/system/etc/bluetooth/rtkbt_plugins.conf:system/etc/bluetooth/rtkbt_plugins.conf
diff --git a/rtkbt/addon/basic/system/etc/bluetooth/rtkbt_plugins.conf b/rtkbt/addon/basic/system/etc/bluetooth/rtkbt_plugins.conf
new file mode 100755
index 0000000..d616f59
--- /dev/null
+++ b/rtkbt/addon/basic/system/etc/bluetooth/rtkbt_plugins.conf
@@ -0,0 +1 @@
+heartbeat
diff --git a/rtkbt/addon/bee/Android.mk b/rtkbt/addon/bee/Android.mk
new file mode 100755
index 0000000..bd30b5b
--- /dev/null
+++ b/rtkbt/addon/bee/Android.mk
@@ -0,0 +1,4 @@
+LOCAL_PATH := $(call my-dir)
+
+include $(call all-subdir-makefiles)
+
diff --git a/rtkbt/addon/bee/addon.mk b/rtkbt/addon/bee/addon.mk
new file mode 100755
index 0000000..a420ccb
--- /dev/null
+++ b/rtkbt/addon/bee/addon.mk
@@ -0,0 +1,6 @@
+PRODUCT_COPY_FILES += \
+    $(LOCAL_PATH)/system/etc/bluetooth/rtkbt_plugins.conf:system/etc/bluetooth/rtkbt_plugins.conf \
+    $(LOCAL_PATH)/system/etc/bluetooth/rtkbt_autopair_config.xml:system/etc/bluetooth/rtkbt_autopair_config.xml \
+    $(LOCAL_PATH)/system/etc/bluetooth/rtkbt_plugin_autopair_stack.conf:system/etc/bluetooth/rtkbt_plugin_autopair_stack.conf \
+    $(LOCAL_PATH)/system/usr/keylayout/rtkbt_vhid_Vid_005d_Pid_0001.kl:system/usr/keylayout/rtkbt_vhid_Vid_005d_Pid_0001.kl \
+
diff --git a/rtkbt/addon/bee/system/etc/bluetooth/rtkbt_autopair_config.xml b/rtkbt/addon/bee/system/etc/bluetooth/rtkbt_autopair_config.xml
new file mode 100755
index 0000000..4229602
--- /dev/null
+++ b/rtkbt/addon/bee/system/etc/bluetooth/rtkbt_autopair_config.xml
@@ -0,0 +1,30 @@
+<?xml version='1.0' encoding='utf-8' ?>
+<root>
+	<Autopair_type total_num = "4">
+		<type>136</type>
+	</Autopair_type>
+	<Autopair_rssi>
+		<rssi>60</rssi>
+	</Autopair_rssi>
+	<Address_pair address_num = "1">
+		<address_1>5C:31:3E</address_1>
+	</Address_pair>
+	<Name_pair name_num = "1">
+		<name_1>LETV</name_1>
+	</Name_pair>
+	<Key_pair key_num = "2">
+		<key_1>1</key_1>
+		<key_2>2</key_2>
+		<key_3>3</key_3>
+		<key_4>4</key_4>
+	</Key_pair>
+	<ManufactSpeciData data_length = "4">
+		<specidata_value>5D:00:04:00</specidata_value>
+		<mask_value>FF:FF:FF:FF</mask_value>
+	</ManufactSpeciData>
+	<Autopair_vendor_event vendor_type = "8">
+	</Autopair_vendor_event>
+	<Autopair_service_timeout>
+		<timeout>600000</timeout>
+	</Autopair_service_timeout>
+</root>
diff --git a/rtkbt/addon/bee/system/etc/bluetooth/rtkbt_plugin_autopair_stack.conf b/rtkbt/addon/bee/system/etc/bluetooth/rtkbt_plugin_autopair_stack.conf
new file mode 100755
index 0000000..cf98e40
--- /dev/null
+++ b/rtkbt/addon/bee/system/etc/bluetooth/rtkbt_plugin_autopair_stack.conf
@@ -0,0 +1,12 @@
+{2}
+[Autopair_type]
+Type=08
+#[Address_pair]
+#Address=
+#Address_mask=
+#[Name_pair]
+#Name=
+#Name_mask=
+[Manufact_pair]
+Manufact_data=5D000400
+Manufact_mask=FFFFFFFF
diff --git a/rtkbt/addon/bee/system/etc/bluetooth/rtkbt_plugins.conf b/rtkbt/addon/bee/system/etc/bluetooth/rtkbt_plugins.conf
new file mode 100755
index 0000000..0c36003
--- /dev/null
+++ b/rtkbt/addon/bee/system/etc/bluetooth/rtkbt_plugins.conf
@@ -0,0 +1,2 @@
+autopair
+heartbeat
diff --git a/rtkbt/addon/bee/system/usr/keylayout/rtkbt_vhid_Vid_005d_Pid_0001.kl b/rtkbt/addon/bee/system/usr/keylayout/rtkbt_vhid_Vid_005d_Pid_0001.kl
new file mode 100755
index 0000000..c76e12f
--- /dev/null
+++ b/rtkbt/addon/bee/system/usr/keylayout/rtkbt_vhid_Vid_005d_Pid_0001.kl
@@ -0,0 +1,34 @@
+# Copyright (C) 2010 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+#
+# Generic key layout file for full alphabetic US English PC style external keyboards.
+#
+# This file is intentionally very generic and is intended to support a broad rang of keyboards.
+# Do not edit the generic key layout to support a specific keyboard; instead, create
+# a new key layout file with the required keyboard configuration.
+#
+
+key 1     ESCAPE
+key 28    ENTER
+key 63    F5
+key 102   HOME
+key 103   DPAD_UP
+key 105   DPAD_LEFT
+key 106   DPAD_RIGHT
+key 108   DPAD_DOWN
+key 114   VOLUME_DOWN
+key 115   VOLUME_UP
+key 116   POWER
+key 130   MENU
diff --git a/rtkbt/addon/bee1/Android.mk b/rtkbt/addon/bee1/Android.mk
new file mode 100755
index 0000000..bd30b5b
--- /dev/null
+++ b/rtkbt/addon/bee1/Android.mk
@@ -0,0 +1,4 @@
+LOCAL_PATH := $(call my-dir)
+
+include $(call all-subdir-makefiles)
+
diff --git a/rtkbt/addon/bee1/addon.mk b/rtkbt/addon/bee1/addon.mk
new file mode 100755
index 0000000..f98f886
--- /dev/null
+++ b/rtkbt/addon/bee1/addon.mk
@@ -0,0 +1,7 @@
+PRODUCT_COPY_FILES += \
+    $(LOCAL_PATH)/system/etc/bluetooth/rtkbt_plugins.conf:system/etc/bluetooth/rtkbt_plugins.conf \
+    $(LOCAL_PATH)/system/etc/bluetooth/rtkbt_autopair_config.xml:system/etc/bluetooth/rtkbt_autopair_config.xml \
+    $(LOCAL_PATH)/system/etc/bluetooth/rtkbt_plugin_autopair_stack.conf:system/etc/bluetooth/rtkbt_plugin_autopair_stack.conf \
+    $(LOCAL_PATH)/system/usr/keylayout/rtkbt_vhid_Vid_005d_Pid_0001.kl:system/usr/keylayout/rtkbt_vhid_Vid_005d_Pid_0001.kl \
+    $(LOCAL_PATH)/system/etc/bluetooth/rtkbt_plugin_vr_bee1_hidraw.conf:system/etc/bluetooth/rtkbt_plugin_vr_bee1_hidraw.conf \
+
diff --git a/rtkbt/addon/bee1/system/etc/bluetooth/rtkbt_autopair_config.xml b/rtkbt/addon/bee1/system/etc/bluetooth/rtkbt_autopair_config.xml
new file mode 100755
index 0000000..4229602
--- /dev/null
+++ b/rtkbt/addon/bee1/system/etc/bluetooth/rtkbt_autopair_config.xml
@@ -0,0 +1,30 @@
+<?xml version='1.0' encoding='utf-8' ?>
+<root>
+	<Autopair_type total_num = "4">
+		<type>136</type>
+	</Autopair_type>
+	<Autopair_rssi>
+		<rssi>60</rssi>
+	</Autopair_rssi>
+	<Address_pair address_num = "1">
+		<address_1>5C:31:3E</address_1>
+	</Address_pair>
+	<Name_pair name_num = "1">
+		<name_1>LETV</name_1>
+	</Name_pair>
+	<Key_pair key_num = "2">
+		<key_1>1</key_1>
+		<key_2>2</key_2>
+		<key_3>3</key_3>
+		<key_4>4</key_4>
+	</Key_pair>
+	<ManufactSpeciData data_length = "4">
+		<specidata_value>5D:00:04:00</specidata_value>
+		<mask_value>FF:FF:FF:FF</mask_value>
+	</ManufactSpeciData>
+	<Autopair_vendor_event vendor_type = "8">
+	</Autopair_vendor_event>
+	<Autopair_service_timeout>
+		<timeout>600000</timeout>
+	</Autopair_service_timeout>
+</root>
diff --git a/rtkbt/addon/bee1/system/etc/bluetooth/rtkbt_plugin_autopair_stack.conf b/rtkbt/addon/bee1/system/etc/bluetooth/rtkbt_plugin_autopair_stack.conf
new file mode 100755
index 0000000..cf98e40
--- /dev/null
+++ b/rtkbt/addon/bee1/system/etc/bluetooth/rtkbt_plugin_autopair_stack.conf
@@ -0,0 +1,12 @@
+{2}
+[Autopair_type]
+Type=08
+#[Address_pair]
+#Address=
+#Address_mask=
+#[Name_pair]
+#Name=
+#Name_mask=
+[Manufact_pair]
+Manufact_data=5D000400
+Manufact_mask=FFFFFFFF
diff --git a/rtkbt/addon/bee1/system/etc/bluetooth/rtkbt_plugin_vr_bee1_hidraw.conf b/rtkbt/addon/bee1/system/etc/bluetooth/rtkbt_plugin_vr_bee1_hidraw.conf
new file mode 100755
index 0000000..d154efd
--- /dev/null
+++ b/rtkbt/addon/bee1/system/etc/bluetooth/rtkbt_plugin_vr_bee1_hidraw.conf
@@ -0,0 +1,5 @@
+{3}
+[Rcu]
+Vid=005d
+Pid=0001
+#Ver=0000
diff --git a/rtkbt/addon/bee1/system/etc/bluetooth/rtkbt_plugins.conf b/rtkbt/addon/bee1/system/etc/bluetooth/rtkbt_plugins.conf
new file mode 100755
index 0000000..3a7c720
--- /dev/null
+++ b/rtkbt/addon/bee1/system/etc/bluetooth/rtkbt_plugins.conf
@@ -0,0 +1,3 @@
+heartbeat
+autopair
+vr_bee1_hidraw
diff --git a/rtkbt/addon/bee1/system/usr/keylayout/rtkbt_vhid_Vid_005d_Pid_0001.kl b/rtkbt/addon/bee1/system/usr/keylayout/rtkbt_vhid_Vid_005d_Pid_0001.kl
new file mode 100755
index 0000000..c76e12f
--- /dev/null
+++ b/rtkbt/addon/bee1/system/usr/keylayout/rtkbt_vhid_Vid_005d_Pid_0001.kl
@@ -0,0 +1,34 @@
+# Copyright (C) 2010 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+#
+# Generic key layout file for full alphabetic US English PC style external keyboards.
+#
+# This file is intentionally very generic and is intended to support a broad rang of keyboards.
+# Do not edit the generic key layout to support a specific keyboard; instead, create
+# a new key layout file with the required keyboard configuration.
+#
+
+key 1     ESCAPE
+key 28    ENTER
+key 63    F5
+key 102   HOME
+key 103   DPAD_UP
+key 105   DPAD_LEFT
+key 106   DPAD_RIGHT
+key 108   DPAD_DOWN
+key 114   VOLUME_DOWN
+key 115   VOLUME_UP
+key 116   POWER
+key 130   MENU
diff --git a/rtkbt/addon/bee2/Android.mk b/rtkbt/addon/bee2/Android.mk
new file mode 100755
index 0000000..bd30b5b
--- /dev/null
+++ b/rtkbt/addon/bee2/Android.mk
@@ -0,0 +1,4 @@
+LOCAL_PATH := $(call my-dir)
+
+include $(call all-subdir-makefiles)
+
diff --git a/rtkbt/addon/bee2/addon.mk b/rtkbt/addon/bee2/addon.mk
new file mode 100755
index 0000000..dfac7d3
--- /dev/null
+++ b/rtkbt/addon/bee2/addon.mk
@@ -0,0 +1,6 @@
+PRODUCT_COPY_FILES += \
+    $(LOCAL_PATH)/system/etc/bluetooth/rtkbt_plugins.conf:system/etc/bluetooth/rtkbt_plugins.conf \
+    $(LOCAL_PATH)/system/etc/bluetooth/rtkbt_autopair_config.xml:system/etc/bluetooth/rtkbt_autopair_config.xml \
+    $(LOCAL_PATH)/system/etc/bluetooth/rtkbt_plugin_autopair_stack.conf:system/etc/bluetooth/rtkbt_plugin_autopair_stack.conf \
+    $(LOCAL_PATH)/system/etc/bluetooth/rtkbt_plugin_vr_bee2_hidraw.conf:system/etc/bluetooth/rtkbt_plugin_vr_bee2_hidraw.conf \
+
diff --git a/rtkbt/addon/bee2/system/etc/bluetooth/rtkbt_autopair_config.xml b/rtkbt/addon/bee2/system/etc/bluetooth/rtkbt_autopair_config.xml
new file mode 100755
index 0000000..4229602
--- /dev/null
+++ b/rtkbt/addon/bee2/system/etc/bluetooth/rtkbt_autopair_config.xml
@@ -0,0 +1,30 @@
+<?xml version='1.0' encoding='utf-8' ?>
+<root>
+	<Autopair_type total_num = "4">
+		<type>136</type>
+	</Autopair_type>
+	<Autopair_rssi>
+		<rssi>60</rssi>
+	</Autopair_rssi>
+	<Address_pair address_num = "1">
+		<address_1>5C:31:3E</address_1>
+	</Address_pair>
+	<Name_pair name_num = "1">
+		<name_1>LETV</name_1>
+	</Name_pair>
+	<Key_pair key_num = "2">
+		<key_1>1</key_1>
+		<key_2>2</key_2>
+		<key_3>3</key_3>
+		<key_4>4</key_4>
+	</Key_pair>
+	<ManufactSpeciData data_length = "4">
+		<specidata_value>5D:00:04:00</specidata_value>
+		<mask_value>FF:FF:FF:FF</mask_value>
+	</ManufactSpeciData>
+	<Autopair_vendor_event vendor_type = "8">
+	</Autopair_vendor_event>
+	<Autopair_service_timeout>
+		<timeout>600000</timeout>
+	</Autopair_service_timeout>
+</root>
diff --git a/rtkbt/addon/bee2/system/etc/bluetooth/rtkbt_plugin_autopair_stack.conf b/rtkbt/addon/bee2/system/etc/bluetooth/rtkbt_plugin_autopair_stack.conf
new file mode 100755
index 0000000..cf98e40
--- /dev/null
+++ b/rtkbt/addon/bee2/system/etc/bluetooth/rtkbt_plugin_autopair_stack.conf
@@ -0,0 +1,12 @@
+{2}
+[Autopair_type]
+Type=08
+#[Address_pair]
+#Address=
+#Address_mask=
+#[Name_pair]
+#Name=
+#Name_mask=
+[Manufact_pair]
+Manufact_data=5D000400
+Manufact_mask=FFFFFFFF
diff --git a/rtkbt/addon/bee2/system/etc/bluetooth/rtkbt_plugin_vr_bee2_hidraw.conf b/rtkbt/addon/bee2/system/etc/bluetooth/rtkbt_plugin_vr_bee2_hidraw.conf
new file mode 100755
index 0000000..3b583b2
--- /dev/null
+++ b/rtkbt/addon/bee2/system/etc/bluetooth/rtkbt_plugin_vr_bee2_hidraw.conf
@@ -0,0 +1,5 @@
+{3}
+[Rcu]
+Vid=005d
+Pid=0002
+#Ver=0000
diff --git a/rtkbt/addon/bee2/system/etc/bluetooth/rtkbt_plugins.conf b/rtkbt/addon/bee2/system/etc/bluetooth/rtkbt_plugins.conf
new file mode 100755
index 0000000..f2c293f
--- /dev/null
+++ b/rtkbt/addon/bee2/system/etc/bluetooth/rtkbt_plugins.conf
@@ -0,0 +1,3 @@
+heartbeat
+autopair
+vr_bee2_hidraw
diff --git a/rtkbt/addon/bee2/system/usr/keylayout/Vendor_005d_Product_0002.kl b/rtkbt/addon/bee2/system/usr/keylayout/Vendor_005d_Product_0002.kl
new file mode 100755
index 0000000..fdf96e2
--- /dev/null
+++ b/rtkbt/addon/bee2/system/usr/keylayout/Vendor_005d_Product_0002.kl
@@ -0,0 +1,34 @@
+# Copyright (C) 2010 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+#
+# Generic key layout file for full alphabetic US English PC style external keyboards.
+#
+# This file is intentionally very generic and is intended to support a broad rang of keyboards.
+# Do not edit the generic key layout to support a specific keyboard; instead, create
+# a new key layout file with the required keyboard configuration.
+#
+
+key 1     ESCAPE
+key 28    ENTER
+key 63    VOICE_ASSIST
+key 102   HOME
+key 103   DPAD_UP
+key 105   DPAD_LEFT
+key 106   DPAD_RIGHT
+key 108   DPAD_DOWN
+key 114   VOLUME_DOWN
+key 115   VOLUME_UP
+key 116   POWER
+key 130   MENU
diff --git a/rtkbt/addon/rtkbtAutoPairService/Android.mk b/rtkbt/addon/rtkbtAutoPairService/Android.mk
new file mode 100755
index 0000000..bd30b5b
--- /dev/null
+++ b/rtkbt/addon/rtkbtAutoPairService/Android.mk
@@ -0,0 +1,4 @@
+LOCAL_PATH := $(call my-dir)
+
+include $(call all-subdir-makefiles)
+
diff --git a/rtkbt/addon/rtkbtAutoPairService/addon.mk b/rtkbt/addon/rtkbtAutoPairService/addon.mk
new file mode 100755
index 0000000..8c75cf9
--- /dev/null
+++ b/rtkbt/addon/rtkbtAutoPairService/addon.mk
@@ -0,0 +1,2 @@
+PRODUCT_PACKAGES += \
+    rtkbtAutoPairService
diff --git a/rtkbt/addon/rtkbtAutoPairService/rtkbtAutoPairService/Android.mk b/rtkbt/addon/rtkbtAutoPairService/rtkbtAutoPairService/Android.mk
new file mode 100755
index 0000000..edc2798
--- /dev/null
+++ b/rtkbt/addon/rtkbtAutoPairService/rtkbtAutoPairService/Android.mk
@@ -0,0 +1,11 @@
+app := rtkbtAutoPairService
+LOCAL_PATH := $(call my-dir)
+include $(CLEAR_VARS)
+LOCAL_MODULE := ${app}
+LOCAL_MODULE_SUFFIX := .apk
+LOCAL_MODULE_CLASS := APPS
+LOCAL_MODULE_TAGS := optional
+LOCAL_CERTIFICATE := platform
+LOCAL_SRC_FILES := ${app}.apk
+include $(BUILD_PREBUILT)
+
diff --git a/rtkbt/addon/rtkbtAutoPairService/rtkbtAutoPairService/rtkbtAutoPairService.apk b/rtkbt/addon/rtkbtAutoPairService/rtkbtAutoPairService/rtkbtAutoPairService.apk
new file mode 100755
index 0000000..3d1df62
Binary files /dev/null and b/rtkbt/addon/rtkbtAutoPairService/rtkbtAutoPairService/rtkbtAutoPairService.apk differ
diff --git a/rtkbt/addon/rtkbtAutoPairUIDemo/Android.mk b/rtkbt/addon/rtkbtAutoPairUIDemo/Android.mk
new file mode 100755
index 0000000..aa2f4b5
--- /dev/null
+++ b/rtkbt/addon/rtkbtAutoPairUIDemo/Android.mk
@@ -0,0 +1,2 @@
+LOCAL_PATH := $(call my-dir)
+include $(call all-subdir-makefiles)
diff --git a/rtkbt/addon/rtkbtAutoPairUIDemo/addon.mk b/rtkbt/addon/rtkbtAutoPairUIDemo/addon.mk
new file mode 100755
index 0000000..1b59f11
--- /dev/null
+++ b/rtkbt/addon/rtkbtAutoPairUIDemo/addon.mk
@@ -0,0 +1,3 @@
+PRODUCT_PACKAGES += \
+    rtkbtAutoPairUIDemo
+
diff --git a/rtkbt/addon/rtkbtAutoPairUIDemo/rtkbtAutoPairUIDemo/Android.mk b/rtkbt/addon/rtkbtAutoPairUIDemo/rtkbtAutoPairUIDemo/Android.mk
new file mode 100755
index 0000000..374ed04
--- /dev/null
+++ b/rtkbt/addon/rtkbtAutoPairUIDemo/rtkbtAutoPairUIDemo/Android.mk
@@ -0,0 +1,10 @@
+LOCAL_PATH:= $(call my-dir)
+include $(CLEAR_VARS)
+LOCAL_MODULE_TAGS := optional
+
+LOCAL_SRC_FILES := $(call all-subdir-java-files)
+
+LOCAL_PACKAGE_NAME := rtkbtAutoPairUIDemo
+LOCAL_CERTIFICATE := platform
+
+include $(BUILD_PACKAGE)
diff --git a/rtkbt/addon/rtkbtAutoPairUIDemo/rtkbtAutoPairUIDemo/AndroidManifest.xml b/rtkbt/addon/rtkbtAutoPairUIDemo/rtkbtAutoPairUIDemo/AndroidManifest.xml
new file mode 100755
index 0000000..293b2ff
--- /dev/null
+++ b/rtkbt/addon/rtkbtAutoPairUIDemo/rtkbtAutoPairUIDemo/AndroidManifest.xml
@@ -0,0 +1,24 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.realtek.rtkbt.AutoPairUIDemo"
+    android:versionCode="1"
+    android:versionName="1.0">
+
+    <uses-sdk android:minSdkVersion="8" android:targetSdkVersion="15" />
+    <uses-permission android:name="android.permission.BLUETOOTH"/>
+	<uses-permission android:name="android.permission.BLUETOOTH_ADMIN"/>
+	<uses-permission android:name="android.permission.BLUETOOTH_PRIVILEGED"/>
+	<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
+
+    <application android:label="@string/app_name"
+        android:icon="@drawable/ic_launcher"
+        android:theme="@style/AppTheme">
+
+        <receiver android:name="rtkbtAutoPairUIDemoReceiver">
+            <intent-filter>
+                <action android:name="com.realtek.autopair.message" />
+            </intent-filter>
+        </receiver>
+
+    </application>
+
+</manifest>
diff --git a/rtkbt/addon/rtkbtAutoPairUIDemo/rtkbtAutoPairUIDemo/res/drawable-hdpi/ic_launcher.png b/rtkbt/addon/rtkbtAutoPairUIDemo/rtkbtAutoPairUIDemo/res/drawable-hdpi/ic_launcher.png
new file mode 100755
index 0000000..a301d57
Binary files /dev/null and b/rtkbt/addon/rtkbtAutoPairUIDemo/rtkbtAutoPairUIDemo/res/drawable-hdpi/ic_launcher.png differ
diff --git a/rtkbt/addon/rtkbtAutoPairUIDemo/rtkbtAutoPairUIDemo/res/drawable-ldpi/ic_launcher.png b/rtkbt/addon/rtkbtAutoPairUIDemo/rtkbtAutoPairUIDemo/res/drawable-ldpi/ic_launcher.png
new file mode 100755
index 0000000..2c2a58b
Binary files /dev/null and b/rtkbt/addon/rtkbtAutoPairUIDemo/rtkbtAutoPairUIDemo/res/drawable-ldpi/ic_launcher.png differ
diff --git a/rtkbt/addon/rtkbtAutoPairUIDemo/rtkbtAutoPairUIDemo/res/drawable-mdpi/ic_launcher.png b/rtkbt/addon/rtkbtAutoPairUIDemo/rtkbtAutoPairUIDemo/res/drawable-mdpi/ic_launcher.png
new file mode 100755
index 0000000..f91f736
Binary files /dev/null and b/rtkbt/addon/rtkbtAutoPairUIDemo/rtkbtAutoPairUIDemo/res/drawable-mdpi/ic_launcher.png differ
diff --git a/rtkbt/addon/rtkbtAutoPairUIDemo/rtkbtAutoPairUIDemo/res/drawable-xhdpi/ic_launcher.png b/rtkbt/addon/rtkbtAutoPairUIDemo/rtkbtAutoPairUIDemo/res/drawable-xhdpi/ic_launcher.png
new file mode 100755
index 0000000..96095ec
Binary files /dev/null and b/rtkbt/addon/rtkbtAutoPairUIDemo/rtkbtAutoPairUIDemo/res/drawable-xhdpi/ic_launcher.png differ
diff --git a/rtkbt/addon/rtkbtAutoPairUIDemo/rtkbtAutoPairUIDemo/res/values-v11/styles.xml b/rtkbt/addon/rtkbtAutoPairUIDemo/rtkbtAutoPairUIDemo/res/values-v11/styles.xml
new file mode 100755
index 0000000..d408cbc
--- /dev/null
+++ b/rtkbt/addon/rtkbtAutoPairUIDemo/rtkbtAutoPairUIDemo/res/values-v11/styles.xml
@@ -0,0 +1,5 @@
+<resources>
+
+    <style name="AppTheme" parent="android:Theme.Holo.Light" />
+
+</resources>
\ No newline at end of file
diff --git a/rtkbt/addon/rtkbtAutoPairUIDemo/rtkbtAutoPairUIDemo/res/values-v14/styles.xml b/rtkbt/addon/rtkbtAutoPairUIDemo/rtkbtAutoPairUIDemo/res/values-v14/styles.xml
new file mode 100755
index 0000000..1c089a7
--- /dev/null
+++ b/rtkbt/addon/rtkbtAutoPairUIDemo/rtkbtAutoPairUIDemo/res/values-v14/styles.xml
@@ -0,0 +1,5 @@
+<resources>
+
+    <style name="AppTheme" parent="android:Theme.Holo.Light.DarkActionBar" />
+
+</resources>
\ No newline at end of file
diff --git a/rtkbt/addon/rtkbtAutoPairUIDemo/rtkbtAutoPairUIDemo/res/values-zh-rCN/strings.xml b/rtkbt/addon/rtkbtAutoPairUIDemo/rtkbtAutoPairUIDemo/res/values-zh-rCN/strings.xml
new file mode 100755
index 0000000..729693d
--- /dev/null
+++ b/rtkbt/addon/rtkbtAutoPairUIDemo/rtkbtAutoPairUIDemo/res/values-zh-rCN/strings.xml
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<resources>
+    <string name="app_name">"BluetoothRTKAutoPairService"</string>
+    <string name="found">"找到遥控器设备，开始自动配对，请勿操作遥控器"</string>
+    <string name="removebond_timeout">"删除之前配对信息操作超时，失败！"</string>
+    <string name="ble_pair_success">"LE模式遥控器配对成功"</string>
+    <string name="ble_pair_fail">"LE模式遥控器配对失败"</string>
+    <string name="ble_pair_timeout">"LE模式遥控器配对超时，失败！"</string>
+    <string name="ble_sdp_success">"LE模式遥控器搜索服务(SDP)成功"</string>
+    <string name="ble_sdp_fail">"LE模式遥控器搜索服务（SDP）失败"</string>
+    <string name="classic_pair_success">"BR/EDR模式遥控器配对成功"</string>
+    <string name="classic_pair_fail">"BR/EDR模式遥控器配对失败"</string>
+    <string name="classic_pair_timeout">"BR/EDR模式遥控器配对超时，失败！"</string>
+    <string name="classic_sdp_success">"BR/EDR模式遥控器搜索服务（SDP）成功"</string>
+    <string name="classic_sdp_fail">"BR/EDR模式遥控器搜索服务（SDP）失败"</string>
+    <string name="over">"遥控器可以开始使用了！"</string>
+    <string name="connect_to_device">"遥控器配对已完成，正在连接遥控器，请勿操作遥控器"</string>
+    <string name="error_weak_signal">"请将遥控器靠近电视，等待自动配对！"</string>
+    <string name="remove_bond">解除遥控器配对</string>
+    <string name="auto_pair_stop">自动配对超时结束！</string>
+</resources>
diff --git a/rtkbt/addon/rtkbtAutoPairUIDemo/rtkbtAutoPairUIDemo/res/values-zh-rCN/styles.xml b/rtkbt/addon/rtkbtAutoPairUIDemo/rtkbtAutoPairUIDemo/res/values-zh-rCN/styles.xml
new file mode 100755
index 0000000..4dba0d0
--- /dev/null
+++ b/rtkbt/addon/rtkbtAutoPairUIDemo/rtkbtAutoPairUIDemo/res/values-zh-rCN/styles.xml
@@ -0,0 +1,5 @@
+<resources>
+
+    <style name="AppTheme" parent="android:Theme.Light" />
+
+</resources>
\ No newline at end of file
diff --git a/rtkbt/addon/rtkbtAutoPairUIDemo/rtkbtAutoPairUIDemo/res/values/strings.xml b/rtkbt/addon/rtkbtAutoPairUIDemo/rtkbtAutoPairUIDemo/res/values/strings.xml
new file mode 100755
index 0000000..8898ccc
--- /dev/null
+++ b/rtkbt/addon/rtkbtAutoPairUIDemo/rtkbtAutoPairUIDemo/res/values/strings.xml
@@ -0,0 +1,24 @@
+<resources>
+    <string name="app_name">BluetoothRTKAutoPairService</string>
+    <string name="found">Found Remote Controller,Start BLE Pair Process. Please Do not operate remoter!</string>
+
+    <string name="removebond_timeout">Remove Old Pair Data Timeout</string>
+
+    <string name="ble_pair_success">BLE Pair Success</string>
+    <string name="ble_pair_fail">BLE Pair Fail</string>
+    <string name="ble_pair_timeout">BLE Pair Timeout</string>
+    <string name="ble_sdp_success">BLE SDP Success</string>
+    <string name="ble_sdp_fail">BLE SDP Fail</string>
+
+    <string name="classic_pair_success">Classic Pair Success</string>
+    <string name="classic_pair_fail">Classic Pair Fail</string>
+    <string name="classic_pair_timeout">Classic Pair Timeout</string>
+    <string name="classic_sdp_success">Classic SDP Success</string>
+    <string name="classic_sdp_fail">Classic SDP Fail</string>
+
+    <string name="connect_to_device">Remote Controller is paired, please wait to connect!</string>
+    <string name="over">Remote Controller can be used</string>
+    <string name="error_weak_signal">Please keep Remote Controller close to the TV, wait for autopair!</string>
+    <string name="remove_bond">remove the bond of the remoter</string>
+    <string name="auto_pair_stop">Auto pair stop!</string>
+</resources>
diff --git a/rtkbt/addon/rtkbtAutoPairUIDemo/rtkbtAutoPairUIDemo/res/values/styles.xml b/rtkbt/addon/rtkbtAutoPairUIDemo/rtkbtAutoPairUIDemo/res/values/styles.xml
new file mode 100755
index 0000000..4dba0d0
--- /dev/null
+++ b/rtkbt/addon/rtkbtAutoPairUIDemo/rtkbtAutoPairUIDemo/res/values/styles.xml
@@ -0,0 +1,5 @@
+<resources>
+
+    <style name="AppTheme" parent="android:Theme.Light" />
+
+</resources>
\ No newline at end of file
diff --git a/rtkbt/addon/rtkbtAutoPairUIDemo/rtkbtAutoPairUIDemo/src/com/android/rtkbtAutoPairUIDemo/rtkbtAutoPairUIDemoReceiver.java b/rtkbt/addon/rtkbtAutoPairUIDemo/rtkbtAutoPairUIDemo/src/com/android/rtkbtAutoPairUIDemo/rtkbtAutoPairUIDemoReceiver.java
new file mode 100755
index 0000000..f936030
--- /dev/null
+++ b/rtkbt/addon/rtkbtAutoPairUIDemo/rtkbtAutoPairUIDemo/src/com/android/rtkbtAutoPairUIDemo/rtkbtAutoPairUIDemoReceiver.java
@@ -0,0 +1,107 @@
+/*
+ * Copyright (C) 2015 The Realtek Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.realtek.rtkbt.AutoPairUIDemo;
+
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.bluetooth.BluetoothAdapter;
+import android.bluetooth.BluetoothRtkbt;
+import android.bluetooth.BluetoothDevice;
+import android.util.Log;
+import android.widget.Toast;
+import android.util.Log;
+import java.util.HashMap;
+
+
+/*
+ *BluetoothRTKAutoPairBroadcastReceiver sync state with bluetooth,
+ *STATE_ON start BluetoothRTKAutoPairService
+ *STATE_TURNING_OFF stop BluetoothRTKAutoPairService
+ */
+
+
+public class rtkbtAutoPairUIDemoReceiver extends BroadcastReceiver {
+    private static final String TAG = "<===AutoPairUIDemoReceiver===>";
+    private static final boolean RTK_DBG = true;
+    private static final String RTKBT_AUTOPAIR_MESSAGE = "com.realtek.autopair.message";
+    private static final String RTKBT_AUTOPAIR_MESSAGE_FIELD_RCUADDR = "com.realtek.autopair.message.rcuaddr";
+    private static final String RTKBT_AUTOPAIR_MESSAGE_FIELD_MESSAGE_ID = "com.realtek.autopair.message.id";
+    private static final String RTKBT_AUTOPAIR_MESSAGE_FIELD_DATA = "com.realtek.autopair.message.data";
+
+    private static final int RTKBT_AUTOPAIR_State_Idle                     = 0;
+    private static final int RTKBT_AUTOPAIR_State_Found                    = 1;
+    private static final int RTKBT_AUTOPAIR_State_RemoveBond               = 2;
+    private static final int RTKBT_AUTOPAIR_State_BLEBond                  = 3;
+    private static final int RTKBT_AUTOPAIR_State_ClassicBond              = 4;
+    private static final int RTKBT_AUTOPAIR_State_SaveNewRCU               = 5;
+    private static final int RTKBT_AUTOPAIR_State_PairSuccess_to_connect   = 6;
+    private static final int RTKBT_AUTOPAIR_State_ConnectSuccess           = 7;
+
+    private static final int RTKBT_AUTOPAIR_State_PairFail                 = 0x101;
+    private static final int RTKBT_AUTOPAIR_State_PairTimeout              = 0x102;
+    private static final int RTKBT_AUTOPAIR_State_ConnectFail              = 0x103;
+
+    @Override
+    public void onReceive(Context context, Intent intent) {
+        Log.i(TAG, "receive intent:" + intent.getAction());
+
+        if(intent.getAction().equals(RTKBT_AUTOPAIR_MESSAGE)) {
+            Log.d(TAG, "RTKBT_AUTOPAIR_MESSAGE: ID:"+intent.getIntExtra(RTKBT_AUTOPAIR_MESSAGE_FIELD_MESSAGE_ID, 0)+" ADDR:"+intent.getStringExtra(RTKBT_AUTOPAIR_MESSAGE_FIELD_RCUADDR)+" DATA:"+intent.getByteArrayExtra(RTKBT_AUTOPAIR_MESSAGE_FIELD_DATA));
+            ShowMessage(context, intent);
+        }
+    }
+    private void ShowMessage(Context context, Intent intent)
+    {
+        int message_id = intent.getIntExtra(RTKBT_AUTOPAIR_MESSAGE_FIELD_MESSAGE_ID, 0);
+        String rcuaddr = intent.getStringExtra(RTKBT_AUTOPAIR_MESSAGE_FIELD_RCUADDR);
+        byte[] data =intent.getByteArrayExtra(RTKBT_AUTOPAIR_MESSAGE_FIELD_DATA);
+        switch(message_id)
+        {
+            case RTKBT_AUTOPAIR_State_Found:
+                Toast.makeText(context,"Found RCU("+rcuaddr+")",Toast.LENGTH_LONG).show();
+                break;
+            case RTKBT_AUTOPAIR_State_RemoveBond:
+                Toast.makeText(context,"RCU("+rcuaddr+") Remove Old RCU Bonding Info",Toast.LENGTH_LONG).show();
+                break;
+            case RTKBT_AUTOPAIR_State_BLEBond:
+                Toast.makeText(context,"RCU("+rcuaddr+") Start BLE Bonding",Toast.LENGTH_LONG).show();
+                break;
+            case RTKBT_AUTOPAIR_State_ClassicBond:
+                Toast.makeText(context,"RCU("+rcuaddr+") Start BREDR Bonding",Toast.LENGTH_LONG).show();
+                break;
+            case RTKBT_AUTOPAIR_State_SaveNewRCU:
+                Toast.makeText(context,"RCU("+rcuaddr+") Save New RCU Bonding Info",Toast.LENGTH_LONG).show();
+                break;
+            case RTKBT_AUTOPAIR_State_PairSuccess_to_connect:
+                Toast.makeText(context,"RCU("+rcuaddr+") Connecting to RCU",Toast.LENGTH_LONG).show();
+                break;
+            case RTKBT_AUTOPAIR_State_ConnectSuccess:
+                Toast.makeText(context,"RCU("+rcuaddr+") Connected to RCU, Pair success",Toast.LENGTH_LONG).show();
+                break;
+            case RTKBT_AUTOPAIR_State_PairFail:
+                Toast.makeText(context,"RCU("+rcuaddr+") Pair Failed",Toast.LENGTH_LONG).show();
+                break;
+            case RTKBT_AUTOPAIR_State_PairTimeout:
+                Toast.makeText(context,"RCU("+rcuaddr+") Pair Timeout",Toast.LENGTH_LONG).show();
+                break;
+            case RTKBT_AUTOPAIR_State_ConnectFail:
+                Toast.makeText(context,"RCU("+rcuaddr+") Connect Fail",Toast.LENGTH_LONG).show();
+                break;
+        }
+    }
+}
diff --git a/rtkbt/addon/vr_bee1_hidraw_daemon/Android.mk b/rtkbt/addon/vr_bee1_hidraw_daemon/Android.mk
new file mode 100755
index 0000000..bd30b5b
--- /dev/null
+++ b/rtkbt/addon/vr_bee1_hidraw_daemon/Android.mk
@@ -0,0 +1,4 @@
+LOCAL_PATH := $(call my-dir)
+
+include $(call all-subdir-makefiles)
+
diff --git a/rtkbt/addon/vr_bee1_hidraw_daemon/addon.mk b/rtkbt/addon/vr_bee1_hidraw_daemon/addon.mk
new file mode 100755
index 0000000..e2b21fe
--- /dev/null
+++ b/rtkbt/addon/vr_bee1_hidraw_daemon/addon.mk
@@ -0,0 +1,5 @@
+PRODUCT_COPY_FILES += \
+    $(LOCAL_PATH)/system/etc/hidraw_setting:system/etc/hidraw_setting \
+
+PRODUCT_PACKAGES += \
+    vr_bee1_hidraw_daemon \
diff --git a/rtkbt/addon/vr_bee1_hidraw_daemon/hidraw/Android.mk b/rtkbt/addon/vr_bee1_hidraw_daemon/hidraw/Android.mk
new file mode 100755
index 0000000..df0ac76
--- /dev/null
+++ b/rtkbt/addon/vr_bee1_hidraw_daemon/hidraw/Android.mk
@@ -0,0 +1,24 @@
+LOCAL_PATH := $(call my-dir)
+
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES += \
+              voice_hidraw.c \
+              voice_uipc.c \
+              get_voice_app.c \
+              ./msbc/msbc.c \
+              ./sbc/sbcdec.c \
+              config.c
+
+LOCAL_C_INCLUDES += \
+                    $(LOCAL_PATH)/sbc \
+                    $(LOCAL_PATH)/msbc
+
+LOCAL_CFLAGS += $(rtk_local_CFLAGS) -Wno-error=unused-parameter
+
+LOCAL_MODULE_TAGS := optional
+LOCAL_SHARED_LIBRARIES := libcutils libc liblog libtinyalsa libandroid_runtime libutils
+LOCAL_MODULE := vr_bee1_hidraw_daemon
+LOCAL_MULTILIB := 32
+
+include $(BUILD_EXECUTABLE)
diff --git a/rtkbt/addon/vr_bee1_hidraw_daemon/hidraw/bee_settings.h b/rtkbt/addon/vr_bee1_hidraw_daemon/hidraw/bee_settings.h
new file mode 100755
index 0000000..9135f83
--- /dev/null
+++ b/rtkbt/addon/vr_bee1_hidraw_daemon/hidraw/bee_settings.h
@@ -0,0 +1,35 @@
+#ifndef BEE_SETTINGS_H
+#define BEE_SETTINGS_H
+
+#define BEE_RCU_VID (0x005D)
+#define BEE_RCU_PID (0x0001)
+#define BEE_RCU_VERSION (0x0000)
+
+#define BEE_VOICEKEY_LEN 8
+
+#define BEE_VOICEKEY_REPORTID (0x01)
+
+unsigned char BEE_VOICE_KEYDOWN_DATA[BEE_VOICEKEY_LEN] = {0x00, 0x00, 0x3E, 0x00, 0x00, 0x00, 0x00, 0x00};
+unsigned char BEE_VOICE_KEYUP_DATA[BEE_VOICEKEY_LEN] = {0x00, 0x64, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
+
+//msbc
+#define BEE_MSBC_VOICEDATA_REPORTID     (0x5A)
+#define BEE_MSBC_VOICECMD_REPORTID      (0x5A)
+
+
+#define BEE_MSBC_ATT_FRAME_SIZE         120
+#define BEE_MSBC_FRAME_SIZE             60
+#define BEE_MSBC_DECODE_INPUT_SIZE      58
+#define BEE_MSBC_DECODE_OUTPUT_SIZE     240
+
+//sbc
+#define BEE_SBC_VOICEDATA_REPORTID      (0x5B)
+#define BEE_SBC_VOICECMD_REPORTID       (0x5B)
+
+#define BEE_SBC_ATT_FRAME_SIZE          72
+#define BEE_SBC_FRAME_SIZE              36
+
+#define BEE_SBC_DECODE_INPUT_SIZE      36
+#define BEE_SBC_DECODE_OUTPUT_SIZE     256
+
+#endif
diff --git a/rtkbt/addon/vr_bee1_hidraw_daemon/hidraw/config.c b/rtkbt/addon/vr_bee1_hidraw_daemon/hidraw/config.c
new file mode 100755
index 0000000..e56e8c5
--- /dev/null
+++ b/rtkbt/addon/vr_bee1_hidraw_daemon/hidraw/config.c
@@ -0,0 +1,251 @@
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <stdlib.h>
+#include <cutils/log.h>
+
+#include "config.h"
+
+
+tVoice_Hidraw_Settings *gConfig = NULL;
+static char * gContent = NULL;
+
+
+static char * voice_conf_getline(char * head, char ** left)
+{
+    char * next;
+    if(*head == 0)
+        return NULL;
+    while((*head == '\r')||(*head == '\n'))
+        head++;
+    if(*head == 0)
+        return NULL;
+    next = head;
+    while((*next != '\r')&&(*next != '\n')&&(*next != 0))
+        next++;
+    if(*next != 0)
+        *next++ = 0;
+    *left = next;
+    return head;
+}
+
+static void voice_conf_parse_config(tVoice_Hidraw_Settings **items, char *content)
+{
+    char * group = NULL;
+    char * item = NULL;
+    char * val = NULL;
+    char * line = NULL;
+    int id = -1;
+    tVoice_Hidraw_Settings* entry, * head, *end;
+
+    char * p;
+    int i = 0;
+
+    head = NULL;
+    end = NULL;
+
+    ALOGD("voice_conf_parse_config\n");
+    while((line = voice_conf_getline(content, &content)) != NULL)
+    {
+        ALOGD("voice_conf_parse_config line:%s\n", line);
+        switch(line[0])
+        {
+            case '[':
+            {
+                p = strstr(line,"]");
+                if(p)
+                {
+                    *p = 0;
+                    group = &(line[1]);
+                    ALOGI("voice_conf_parse_config Find Group[%s]\n", group);
+                }else{
+                    ALOGW("voice_conf_parse_config Expected ']' end of Group(%s)!\n", line);
+                }
+                break;
+            }
+            case '#':
+            {
+                break;
+            }
+            default:
+            {
+                p = strstr(line,"=");
+                if(p)
+                {
+                    *p++ = 0;
+                    item = line;
+                    val = p;
+                    if((item[0]==0)||(val[0]==0))
+                    {
+                        ALOGI("voice_conf_parse_config ignore(item:%s val:%s)\n", item[0]?item:"(null)", val[0]?val:"(null)");
+                        break;
+                    }
+                    ALOGI("voice_conf_parse_config Find Item[%s:%s=%s]\n", group, item, val);
+                    entry = malloc(sizeof(tVoice_Hidraw_Settings));
+                    if(entry)
+                    {
+                        entry->next = NULL;
+                        entry->group = group;
+                        entry->item = item;
+                        entry->val = val;
+                        if(end)
+                        {
+                            end->next = entry;
+                            end = entry;
+                        }else
+                            end = entry;
+                        if(head == NULL)
+                            head = entry;
+                    }
+                }
+            }
+        }
+    }
+    *items = head;
+}
+
+
+int voice_loadconfig(char * path)
+{
+    int i,res,fd;
+    struct stat st;
+    char * content = NULL;
+    struct tVoice_Hidraw_Settings* config = NULL;
+
+    ALOGI("voice_loadconfig(%s) load!\n", path);
+    fd = open(path, O_RDONLY);
+    if(fd < 0)
+    {
+        ALOGW("voice_loadconfig(%s) open fail!\n", path);
+        return -1;
+    }
+    res = fstat(fd, &st);
+    if(res)
+    {
+        ALOGW("voice_loadconfig(%s) stat fail! reason=%d\n", path, res);
+        return -1;
+    }
+    if(st.st_size <= 0)
+    {
+        ALOGW("voice_loadconfig(%s) size fail! size=%d\n", path, (int)st.st_size);
+        close(fd);
+        return -1;
+    }
+    ALOGI("voice_loadconfig(%s) size=%d!\n", path, (int)st.st_size);
+    content = malloc(st.st_size+1);
+    if(content == NULL)
+    {
+        ALOGW("voice_loadconfig(%s) malloc fail!\n", path);
+        close(fd);
+        return -1;
+    }
+    res = read(fd, content, st.st_size);
+    if(res <= 0)
+    {
+        ALOGW("voice_loadconfig(%s) read fail! res=%d\n", path, res);
+        close(fd);
+        return -1;
+    }
+    content[res] = 0;
+    voice_conf_parse_config(&config, content);
+    close(fd);
+
+    gConfig = config;
+    return 0;
+}
+
+
+
+
+static char * voice_api_GetConfig(char * group, char * item)
+{
+    int i;
+    tVoice_Hidraw_Settings * entry;
+
+    if(item == NULL)
+        return NULL;
+    entry = gConfig;
+    while(entry)
+    {
+        if(group&&(entry->group)&&(strcmp(entry->group, group)==0)&&(strcmp(entry->item, item)==0))
+            return entry->val;
+        if((group==NULL)&&(entry->group==NULL)&&(strcmp(entry->item, item)==0))
+            return entry->val;
+
+        entry = entry->next;
+    }
+    return NULL;
+}
+
+int voice_get_int_config(char *group, char *item) {
+    char *str;
+    int value = -1;
+
+    str = voice_api_GetConfig(group, item);
+    if(str == NULL) {
+        ALOGE("failed to get int value: %s-%s", group, item);
+        goto result;
+    }
+
+    value = strtol(str, NULL, 16);
+
+result:
+    return value;
+}
+
+int voice_get_byte_array_config(char *group, char *item, char* arr, int len) {
+    char *str, *front, *tail;
+    int ret = -1;
+    int i = 0;
+
+    str = voice_api_GetConfig(group, item);
+    if(str == NULL) {
+        goto retval;
+    }
+
+    front = str;
+
+    while(i < len) {
+        tail = strstr(front, ",");
+        if(tail == NULL) {
+            tail = strstr(front, ";");
+        }
+
+        if(tail == NULL) {
+            ALOGE("failed to get byte-array value: %s-%s-No%d", group, item, i + 1);
+            goto retval;
+        }
+
+        *tail++ = 0;
+        *(arr+i) = (strtol(front, NULL, 16)) & 0xff;
+        front = tail;
+        i++;
+    }
+
+    if(i == len)ret = i;
+
+retval:
+    return ret;
+}
+
+int voice_conf_exit()
+{
+    struct tVoice_Hidraw_Settings *item, *p;
+    int i;
+
+    item = gConfig;
+    while(item)
+    {
+        p = item;
+        item = item->next;
+        free(p);
+    }
+
+    if(gContent)
+        free(gContent);
+    return 0;
+}
+
+
diff --git a/rtkbt/addon/vr_bee1_hidraw_daemon/hidraw/config.h b/rtkbt/addon/vr_bee1_hidraw_daemon/hidraw/config.h
new file mode 100755
index 0000000..eeb868a
--- /dev/null
+++ b/rtkbt/addon/vr_bee1_hidraw_daemon/hidraw/config.h
@@ -0,0 +1,34 @@
+#ifndef CONFIG_H
+#define CONFIG_H
+
+typedef struct tVoice_Hidraw_Settings
+{
+    struct tVoice_Hidraw_Settings * next;
+    char * group;
+    char * item;
+    char * val;
+} tVoice_Hidraw_Settings;
+
+#define CONFIG_GROUP_RCU  "Rcu"
+#define CONFIG_ITEM_RCU_VID  "Vid"
+#define CONFIG_ITEM_RCU_PID  "Pid"
+#define CONFIG_ITEM_RCU_VER  "Ver"
+
+#define CONFIG_GROUP_REPORTID  "ReportID"
+#define CONFIG_ITEM_REPORTID_KEY  "Key"
+#define CONFIG_ITEM_REPORTID_DATA  "Data"
+#define CONFIG_ITEM_REPORTID_CMD  "Cmd"
+
+#define CONFIG_GROUP_REPORTVALUE  "ReportValue"
+#define CONFIG_ITEM_REPORTVALUE_KEYDOWNLEN  "KeyDownLen"
+#define CONFIG_ITEM_REPORTVALUE_KEYDOWN  "KeyDown"
+#define CONFIG_ITEM_REPORTVALUE_KEYUPLEN  "KeyUpLen"
+#define CONFIG_ITEM_REPORTVALUE_KEYUP  "KeyUp"
+
+#define CONFIG_GROUP_SETTINGS  "Settings"
+#define CONFIG_ITEM_SETTINGS_DECODETYPE "DecodeType"
+#define CONFIG_ITEM_SETTINGS_DATAMASK "DataMask"
+#define CONFIG_ITEM_SETTINGS_AUTOCMD "AutoCmd"
+
+
+#endif
diff --git a/rtkbt/addon/vr_bee1_hidraw_daemon/hidraw/get_voice_app.c b/rtkbt/addon/vr_bee1_hidraw_daemon/hidraw/get_voice_app.c
new file mode 100755
index 0000000..1228b01
--- /dev/null
+++ b/rtkbt/addon/vr_bee1_hidraw_daemon/hidraw/get_voice_app.c
@@ -0,0 +1,234 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include "string.h"
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#include <cutils/log.h>
+#include "get_voice_app.h"
+#include "msbc.h"
+
+
+#define DECODE_SIZE  58
+#define VOICE_MTU                   60
+#define VOICDE_DECODE_UNIT          (VOICE_MTU*4)
+
+
+static uint8* _pVoiceBuf = NULL;
+static uint8* _pdecodeBuf = NULL;
+static uint8* _pdecodeFrameBuf = NULL;
+int voice_fd = -1;
+int voice_fd_origin = -1;
+int voice_fd_wav = -1;
+sbc_t t_sbc;
+static int file_index = 0;
+
+struct wavfile
+{
+    char    id[4];          // should always contain "RIFF"
+    int     totallength;    // total file length minus 8
+    char    wavefmt[8];     // should be "WAVEfmt "
+    int     format;         // 16 for PCM format
+    short   pcm;            // 1 for PCM format
+    short   channels;       // channels
+    int     frequency;      // sampling frequency, 16000 in this case
+    int     bytes_per_second;
+    short   bytes_by_capture;
+    short   bits_per_sample;
+    char    data[4];        // should always contain "data"
+    int     bytes_in_data;
+};
+
+void write_wav_header(char* name, int samples, int channels){
+    struct wavfile filler;
+    FILE *pcm_fd;
+	FILE *wav_fd;
+	char record_name[50] = {0};
+	int size;
+	char ch;
+
+	ALOGE("Start to convert pcm to wav\n");
+    strncpy(filler.id, "RIFF", 4);
+//    filler.totallength = (samples * channels) + sizeof(struct wavfile) - 8; //81956
+    strncpy(filler.wavefmt, "WAVEfmt ", 8);
+    filler.format = 16;
+    filler.pcm = 1;
+    filler.channels = channels;
+    filler.frequency = 16000;
+    filler.bits_per_sample = 16;
+    filler.bytes_per_second = filler.channels * filler.frequency * filler.bits_per_sample/8;
+    filler.bytes_by_capture = filler.channels*filler.bits_per_sample/8;
+//    filler.bytes_in_data = samples * filler.channels * filler.bits_per_sample/8;    
+    strncpy(filler.data, "data", 4);
+
+	pcm_fd = fopen(name, "rb");
+	fseek(pcm_fd, 0, SEEK_END);
+	size = ftell(pcm_fd);
+	fseek(pcm_fd, 0, SEEK_SET);
+	
+	filler.bytes_in_data = size;
+	filler.totallength = size + sizeof(filler) - 8;
+#if 0	// just print data
+	printf("File description header: %s\n", filler.id);
+	printf("Size of file: %d\n", filler.totallength);
+	printf("WAV Format description header: %s\n", filler.wavefmt);
+	printf("Size of WAVE section chunck: %d\n", filler.format);
+	printf("WAVE type format: %d\n", filler.pcm);
+	printf("Number of channels: %d\n", filler.channels);
+	printf("Samples per second: %d\n", filler.frequency);
+	printf("Bytes per second: %d\n", filler.bytes_per_second);
+	printf("Block alignment: %d\n", filler.bytes_by_capture);
+	printf("Bits per sample: %d\n", filler.bits_per_sample);
+	printf("Data description header: %s\n", filler.data);
+	printf("Size of data: %d\n", filler.bytes_in_data);
+#endif
+
+
+    sprintf(record_name,"voice_msbc_wav%d.wav",file_index);
+
+	// store wav header
+    wav_fd = fopen(record_name, "wb");
+    fwrite(&filler, 1, sizeof(filler), wav_fd);
+	fclose(wav_fd);
+
+	// store voice data
+	wav_fd = fopen(record_name, "ab");
+    while(!feof(pcm_fd)) { 
+        fread(&ch, 1, 1, pcm_fd);
+        
+        if(!feof(pcm_fd)) { 
+            fwrite(&ch, 1, 1, wav_fd);
+        }
+    } 
+
+    fclose(pcm_fd);
+	fclose(wav_fd);
+}
+
+void RS_init_sbc()
+{
+    //msbc
+    sbc_init (&t_sbc, 0L);  
+}
+
+void RS_voice_app_create_origin_output()
+{
+    char record_name[50] = {0};
+
+    sprintf(record_name,"/data/vr/voice_msbc_origin%d",file_index);
+ 
+    voice_fd_origin =  open (record_name, O_WRONLY | O_CREAT |O_TRUNC, 0644);
+
+    
+    if(voice_fd_origin < 0)
+    {
+        ALOGE("can't open record origin  file:%s ",record_name);
+    }
+
+	RS_init_sbc();
+	
+	return;
+}
+
+void RS_voice_app_create_output()
+{
+    char record_name[50] = {0}; 
+    sprintf(record_name,"/data/vr/voice_msbc%d",file_index);
+
+    voice_fd =  open (record_name, O_WRONLY | O_CREAT |O_TRUNC, 0644);
+
+    if(voice_fd < 0)
+    {
+        ALOGE("can't open record file:%s ",record_name);
+    }
+
+
+	return;
+}
+
+int RS_stop_voice_stream_data (void)
+{
+	char record_name[50] = {0};
+	
+    ALOGE ("in\r\n");
+	
+    if (voice_fd > 0 && -1 == close (voice_fd)  )
+    {
+        ALOGE ("close voice file fail\r\n");
+    }
+
+    if (voice_fd_origin > 0 && -1 == close (voice_fd_origin)  )
+    {
+        ALOGE ("close voice file fail\r\n");
+    }
+
+    voice_fd = 0;
+    voice_fd_origin = 0;
+ 
+    sprintf(record_name,"voice_msbc%d",file_index);
+
+	//write_wav_header(record_name, 16000, 1);
+
+    sbc_finish (&t_sbc);
+
+	file_index = ((++file_index)>= 10) ? 0 : file_index;
+	
+    return 0;
+}
+
+int RS_write_decode_buf(uint8* pu_decode, ssize_t len)
+{
+        if (voice_fd > 0)
+        {
+            write (voice_fd, pu_decode, len);
+            return 0;
+        }
+        return -1;
+}
+
+int RS_deal_voice_stream_data(const uint8* input, size_t voice_buf_size, unsigned char* output, size_t output_buf_size, int* frame_len)
+{
+    int framelen;
+
+//    RS_init_sbc();
+
+    
+
+    if (NULL == input || 0 == voice_buf_size)
+    {
+        ALOGE ("input is null \r\n");
+        return -1;
+    }
+
+
+    if (NULL == output || 0 == output_buf_size)
+    {
+        ALOGE ("output is null");
+        return -1;
+    }
+
+    if(voice_buf_size != VOICE_MTU) {
+        ALOGE ("input size error: %d", voice_buf_size);
+        return -1;
+    }
+
+
+    if (input[0] == 0x01 && input[2] == 0xad)
+    { 
+        write(voice_fd_origin, input, voice_buf_size);
+        framelen = sbc_decode (&t_sbc, &input[2], DECODE_SIZE, output, output_buf_size,frame_len);
+        if (framelen <= 0)
+        {
+            ALOGE("fail to decode");
+            return -1;
+        }
+        RS_write_decode_buf(output, *frame_len);
+        return 0;
+    }else {
+        ALOGE("msbc format error !!!");
+        return -1;
+    }
+}
+    
+
diff --git a/rtkbt/addon/vr_bee1_hidraw_daemon/hidraw/get_voice_app.h b/rtkbt/addon/vr_bee1_hidraw_daemon/hidraw/get_voice_app.h
new file mode 100755
index 0000000..64cc362
--- /dev/null
+++ b/rtkbt/addon/vr_bee1_hidraw_daemon/hidraw/get_voice_app.h
@@ -0,0 +1,22 @@
+
+//#define  MSBC_SUPPORT
+#define  VOICE_KEY_DOWN 0x3e
+#define  VOICE_BUFFER_REPORT_ID    0x5a
+#define  ADD_FOR_VOICE_CONTROL
+#define  VOICE_FILE_WITH_MSBC           "/tmp/voice_msbc"
+#define  VOICE_FILE_WITH_NO_MSBC    "/tmp/voice_no_msbc"
+
+typedef unsigned char uint8;
+typedef unsigned short uint16;
+typedef unsigned int uint32;
+typedef signed char int8;
+typedef signed short int16;
+typedef signed int int32;
+
+void RS_voice_app_create_origin_output();
+
+int RS_deal_voice_stream_data(const uint8* input, size_t voice_buf_size, unsigned char* output, size_t output_buf_size, int* frame_len);
+
+int RS_stop_voice_stream_data (void);
+
+void RS_voice_app_create_output();
diff --git a/rtkbt/addon/vr_bee1_hidraw_daemon/hidraw/msbc/msbc.c b/rtkbt/addon/vr_bee1_hidraw_daemon/hidraw/msbc/msbc.c
new file mode 100755
index 0000000..9ee5045
--- /dev/null
+++ b/rtkbt/addon/vr_bee1_hidraw_daemon/hidraw/msbc/msbc.c
@@ -0,0 +1,1766 @@
+/*
+ *
+ *  Bluetooth low-complexity, subband codec (SBC) library
+ *
+ *  Copyright (C) 2004-2006  Marcel Holtmann <marcel@holtmann.org>
+ *  Copyright (C) 2004-2005  Henryk Ploetz <henryk@ploetzli.ch>
+ *  Copyright (C) 2005-2006  Brad Midgley <bmidgley@xmission.com>
+ *
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Lesser General Public
+ *  License as published by the Free Software Foundation; either
+ *  version 2.1 of the License, or (at your option) any later version.
+ *
+ *  This library is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with this library; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+/* todo items:
+
+  use a log2 table for byte integer scale factors calculation (sum log2 results for high and low bytes)
+  fill bitpool by 16 bits instead of one at a time in bits allocation/bitpool generation
+  port to the dsp
+  don't consume more bytes than passed into the encoder
+
+*/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+
+
+#include <errno.h>
+
+//#include <stdint.h>
+#include <malloc.h>
+#include <string.h>
+//#include <stdlib.h>
+#include <sys/types.h>
+
+#include "msbc.h"
+#include "msbc_math.h"
+#include "msbc_tables.h"
+#include "cutils/log.h"
+
+
+#define SBC_SYNCWORD    0xAD
+#define SBC_POOLTAG     'CBSR'
+
+/* sampling frequency */
+#define SBC_FS_16   0x00
+#define SBC_FS_32   0x01
+#define SBC_FS_44   0x02
+#define SBC_FS_48   0x03
+
+/* nrof_blocks */
+#define SBC_NB_4    0x00
+#define SBC_NB_8    0x01
+#define SBC_NB_12   0x02
+#define SBC_NB_16   0x03
+
+/* channel mode */
+#define SBC_CM_MONO     0x00
+#define SBC_CM_DUAL_CHANNEL 0x01
+#define SBC_CM_STEREO       0x02
+#define SBC_CM_JOINT_STEREO 0x03
+
+/* allocation mode */
+#define SBC_AM_LOUDNESS     0x00
+#define SBC_AM_SNR      0x01
+
+/* subbands */
+#define SBC_SB_4    0x00
+#define SBC_SB_8    0x01
+
+#define SBC_ALIGN_BITS 4
+#define SBC_ALIGN_MASK ((1 << (SBC_ALIGN_BITS)) - 1)
+
+
+typedef unsigned short  uint16_t;
+typedef unsigned char uint8_t;
+typedef short int16_t;
+typedef unsigned int  u_int32_t;
+
+#ifndef UINT
+typedef unsigned int   UINT;
+#endif
+
+
+#if defined(WIN32) && !defined(__cplusplus)
+
+#define inline __inline
+
+#endif
+
+
+/*
+static __inline  void sbc_synthesize_four(struct sbc_decoder_state *state,
+        struct sbc_frame *frame, int ch, int blk);
+*/
+
+
+/* This structure contains an unpacked SBC frame.
+   Yes, there is probably quite some unused space herein */
+struct sbc_frame
+{
+    uint16_t sampling_frequency;    /* in kHz */
+    unsigned char blocks;
+    enum {
+        MONO        = SBC_CM_MONO,
+        DUAL_CHANNEL    = SBC_CM_DUAL_CHANNEL,
+        STEREO      = SBC_CM_STEREO,
+        JOINT_STEREO    = SBC_CM_JOINT_STEREO
+    } channel_mode;
+    uint8_t channels;
+    enum {
+        LOUDNESS    = SBC_AM_LOUDNESS,
+        SNR     = SBC_AM_SNR
+    } allocation_method;
+    uint8_t subbands;
+    uint8_t bitpool;
+    uint8_t join;               /* bit number x set means joint stereo has been used in subband x */
+    int scale_factor[2][8];     /* only the lower 4 bits of every element are to be used */
+    uint16_t audio_sample[16][2][8];    /* raw integer subband samples in the frame */
+
+    int sb_sample_f[16][2][8];
+    int sb_sample[16][2][8];        /* modified subband samples */
+    short pcm_sample[2][16*8];      /* original pcm audio samples */
+};
+
+struct sbc_decoder_state {
+    int subbands;
+    long long V[2][170];
+    int offset[2][16];
+};
+
+struct sbc_encoder_state {
+    int subbands;
+    int32_t X[2][80];
+};
+
+/*
+ * Calculates the CRC-8 of the first len bits in data
+ */
+static const uint8_t crc_table[256] = {
+    0x00, 0x1D, 0x3A, 0x27, 0x74, 0x69, 0x4E, 0x53,
+    0xE8, 0xF5, 0xD2, 0xCF, 0x9C, 0x81, 0xA6, 0xBB,
+    0xCD, 0xD0, 0xF7, 0xEA, 0xB9, 0xA4, 0x83, 0x9E,
+    0x25, 0x38, 0x1F, 0x02, 0x51, 0x4C, 0x6B, 0x76,
+    0x87, 0x9A, 0xBD, 0xA0, 0xF3, 0xEE, 0xC9, 0xD4,
+    0x6F, 0x72, 0x55, 0x48, 0x1B, 0x06, 0x21, 0x3C,
+    0x4A, 0x57, 0x70, 0x6D, 0x3E, 0x23, 0x04, 0x19,
+    0xA2, 0xBF, 0x98, 0x85, 0xD6, 0xCB, 0xEC, 0xF1,
+    0x13, 0x0E, 0x29, 0x34, 0x67, 0x7A, 0x5D, 0x40,
+    0xFB, 0xE6, 0xC1, 0xDC, 0x8F, 0x92, 0xB5, 0xA8,
+    0xDE, 0xC3, 0xE4, 0xF9, 0xAA, 0xB7, 0x90, 0x8D,
+    0x36, 0x2B, 0x0C, 0x11, 0x42, 0x5F, 0x78, 0x65,
+    0x94, 0x89, 0xAE, 0xB3, 0xE0, 0xFD, 0xDA, 0xC7,
+    0x7C, 0x61, 0x46, 0x5B, 0x08, 0x15, 0x32, 0x2F,
+    0x59, 0x44, 0x63, 0x7E, 0x2D, 0x30, 0x17, 0x0A,
+    0xB1, 0xAC, 0x8B, 0x96, 0xC5, 0xD8, 0xFF, 0xE2,
+    0x26, 0x3B, 0x1C, 0x01, 0x52, 0x4F, 0x68, 0x75,
+    0xCE, 0xD3, 0xF4, 0xE9, 0xBA, 0xA7, 0x80, 0x9D,
+    0xEB, 0xF6, 0xD1, 0xCC, 0x9F, 0x82, 0xA5, 0xB8,
+    0x03, 0x1E, 0x39, 0x24, 0x77, 0x6A, 0x4D, 0x50,
+    0xA1, 0xBC, 0x9B, 0x86, 0xD5, 0xC8, 0xEF, 0xF2,
+    0x49, 0x54, 0x73, 0x6E, 0x3D, 0x20, 0x07, 0x1A,
+    0x6C, 0x71, 0x56, 0x4B, 0x18, 0x05, 0x22, 0x3F,
+    0x84, 0x99, 0xBE, 0xA3, 0xF0, 0xED, 0xCA, 0xD7,
+    0x35, 0x28, 0x0F, 0x12, 0x41, 0x5C, 0x7B, 0x66,
+    0xDD, 0xC0, 0xE7, 0xFA, 0xA9, 0xB4, 0x93, 0x8E,
+    0xF8, 0xE5, 0xC2, 0xDF, 0x8C, 0x91, 0xB6, 0xAB,
+    0x10, 0x0D, 0x2A, 0x37, 0x64, 0x79, 0x5E, 0x43,
+    0xB2, 0xAF, 0x88, 0x95, 0xC6, 0xDB, 0xFC, 0xE1,
+    0x5A, 0x47, 0x60, 0x7D, 0x2E, 0x33, 0x14, 0x09,
+    0x7F, 0x62, 0x45, 0x58, 0x0B, 0x16, 0x31, 0x2C,
+    0x97, 0x8A, 0xAD, 0xB0, 0xE3, 0xFE, 0xD9, 0xC4
+};
+
+static uint8_t sbc_crc8(const uint8_t * data, size_t len)
+{
+    uint8_t crc = 0x0f;
+    size_t i;
+    uint8_t octet;
+
+    for (i = 0; i < len / 8; i++)
+        crc = crc_table[crc ^ data[i]];
+
+    octet = data[i];
+    for (i = 0; i < len % 8; i++)
+    {
+        char bit = ((octet ^ crc) & 0x80) >> 7;
+
+        crc = ((crc & 0x7f) << 1) ^ (bit ? 0x1d : 0);
+
+        octet = octet << 1;
+    }
+
+    return crc;
+}
+
+/*
+ * Code straight from the spec to calculate the bits array
+ * Takes a pointer to the frame in question, a pointer to the bits array and the sampling frequency (as 2 bit integer)
+ */
+static void sbc_calculate_bits(const struct sbc_frame *frame, int (*bits)[8], uint8_t sf)
+{
+    if (frame->channel_mode == MONO || frame->channel_mode == DUAL_CHANNEL)
+    {
+        int bitneed[2][8], loudness, max_bitneed, bitcount, slicecount, bitslice;
+        int ch, sb;
+
+        for (ch = 0; ch < frame->channels; ch++)
+        {
+            if (frame->allocation_method == SNR)
+            {
+                for (sb = 0; sb < frame->subbands; sb++)
+                {
+                    bitneed[ch][sb] = frame->scale_factor[ch][sb];
+                }
+            }
+
+            else
+            {
+                for (sb = 0; sb < frame->subbands; sb++)
+                {
+                    if (frame->scale_factor[ch][sb] == 0)
+                    {
+                        bitneed[ch][sb] = -5;
+                    }
+                    else
+                    {
+                        if (frame->subbands == 4)
+                        {
+                            loudness = frame->scale_factor[ch][sb] - sbc_offset4[sf][sb];
+                        }
+
+                        else
+                        {
+                            loudness = frame->scale_factor[ch][sb] - sbc_offset8[sf][sb];
+                        }
+
+                        if (loudness > 0)
+                        {
+                            bitneed[ch][sb] = loudness / 2;
+                        }
+
+                        else
+                        {
+                            bitneed[ch][sb] = loudness;
+                        }
+                    }
+                }
+            }
+
+            max_bitneed = 0;
+            for (sb = 0; sb < frame->subbands; sb++)
+            {
+                if (bitneed[ch][sb] > max_bitneed)
+                    max_bitneed = bitneed[ch][sb];
+            }
+
+            bitcount = 0;
+            slicecount = 0;
+            bitslice = max_bitneed + 1;
+            do
+            {
+                bitslice--;
+                bitcount += slicecount;
+                slicecount = 0;
+                for (sb = 0; sb < frame->subbands; sb++)
+                {
+                    if ((bitneed[ch][sb] > bitslice + 1) && (bitneed[ch][sb] < bitslice + 16))
+                    {
+                        slicecount++;
+                    }
+
+                    else if (bitneed[ch][sb] == bitslice + 1)
+                    {
+                        slicecount += 2;
+                    }
+                }
+            } while (bitcount + slicecount < frame->bitpool);
+
+            if (bitcount + slicecount == frame->bitpool)
+            {
+                bitcount += slicecount;
+                bitslice--;
+            }
+
+            for (sb = 0; sb < frame->subbands; sb++)
+            {
+                if (bitneed[ch][sb] < bitslice + 2)
+                {
+                    bits[ch][sb] = 0;
+                }
+
+                else
+                {
+                    bits[ch][sb] = bitneed[ch][sb] - bitslice;
+                    if (bits[ch][sb] > 16)
+                        bits[ch][sb] = 16;
+                }
+            }
+
+            sb = 0;
+            while (bitcount < frame->bitpool && sb < frame->subbands)
+            {
+                if ((bits[ch][sb] >= 2) && (bits[ch][sb] < 16))
+                {
+                    bits[ch][sb]++;
+                    bitcount++;
+                }
+
+                else if ((bitneed[ch][sb] == bitslice + 1) && (frame->bitpool > bitcount + 1))
+                {
+                    bits[ch][sb] = 2;
+                    bitcount += 2;
+                }
+                sb++;
+            }
+
+            sb = 0;
+            while (bitcount < frame->bitpool && sb < frame->subbands)
+            {
+                if (bits[ch][sb] < 16)
+                {
+                    bits[ch][sb]++;
+                    bitcount++;
+                }
+                sb++;
+            }
+
+        }
+
+    }
+
+    else if (frame->channel_mode == STEREO || frame->channel_mode == JOINT_STEREO)
+    {
+        int bitneed[2][8], loudness, max_bitneed, bitcount, slicecount, bitslice;
+        int ch, sb;
+
+        if (frame->allocation_method == SNR)
+        {
+            for (ch = 0; ch < 2; ch++) {
+                for (sb = 0; sb < frame->subbands; sb++)
+                {
+                    bitneed[ch][sb] = frame->scale_factor[ch][sb];
+                }
+            }
+        }
+
+        else
+        {
+            for (ch = 0; ch < 2; ch++)
+            {
+                for (sb = 0; sb < frame->subbands; sb++)
+                {
+                    if (frame->scale_factor[ch][sb] == 0)
+                    {
+                        bitneed[ch][sb] = -5;
+                    }
+
+                    else
+                    {
+                        if (frame->subbands == 4)
+                        {
+                            loudness = frame->scale_factor[ch][sb] - sbc_offset4[sf][sb];
+                        }
+
+                        else
+                        {
+                            loudness = frame->scale_factor[ch][sb] - sbc_offset8[sf][sb];
+                        }
+
+                        if (loudness > 0)
+                        {
+                            bitneed[ch][sb] = loudness / 2;
+                        }
+
+                        else
+                        {
+                            bitneed[ch][sb] = loudness;
+                        }
+                    }
+                }
+            }
+        }
+
+        max_bitneed = 0;
+        for (ch = 0; ch < 2; ch++)
+        {
+            for (sb = 0; sb < frame->subbands; sb++)
+            {
+                if (bitneed[ch][sb] > max_bitneed)
+                    max_bitneed = bitneed[ch][sb];
+            }
+        }
+
+        bitcount = 0;
+        slicecount = 0;
+        bitslice = max_bitneed + 1;
+        do {
+            bitslice--;
+            bitcount += slicecount;
+            slicecount = 0;
+            for (ch = 0; ch < 2; ch++)
+            {
+                for (sb = 0; sb < frame->subbands; sb++)
+                {
+                    if ((bitneed[ch][sb] > bitslice + 1) && (bitneed[ch][sb] < bitslice + 16))
+                    {
+                        slicecount++;
+                    }
+
+                    else if (bitneed[ch][sb] == bitslice + 1)
+                    {
+                        slicecount += 2;
+                    }
+                }
+            }
+        } while (bitcount + slicecount < frame->bitpool);
+
+        if (bitcount + slicecount == frame->bitpool)
+        {
+            bitcount += slicecount;
+            bitslice--;
+        }
+
+        for (ch = 0; ch < 2; ch++)
+        {
+            for (sb = 0; sb < frame->subbands; sb++)
+            {
+                if (bitneed[ch][sb] < bitslice + 2)
+                {
+                    bits[ch][sb] = 0;
+                }
+
+                else
+                {
+                    bits[ch][sb] = bitneed[ch][sb] - bitslice;
+                    if (bits[ch][sb] > 16)
+                        bits[ch][sb] = 16;
+                }
+            }
+        }
+
+        ch = 0;
+        sb = 0;
+        while ((bitcount < frame->bitpool) && (sb < frame->subbands))
+        {
+            if ((bits[ch][sb] >= 2) && (bits[ch][sb] < 16))
+            {
+                bits[ch][sb]++;
+                bitcount++;
+            }
+
+            else if ((bitneed[ch][sb] == bitslice + 1) && (frame->bitpool > bitcount + 1))
+            {
+                bits[ch][sb] = 2;
+                bitcount += 2;
+            }
+            if (ch == 1)
+            {
+                ch = 0;
+                sb++;
+            }
+            else
+            {
+                ch = 1;
+            }
+        }
+
+        ch = 0;
+        sb = 0;
+        while ((bitcount < frame->bitpool) && (sb < frame->subbands))
+        {
+            if (bits[ch][sb] < 16)
+            {
+                bits[ch][sb]++;
+                bitcount++;
+            }
+            if (ch == 1)
+            {
+                ch = 0;
+                sb++;
+            }
+
+            else
+            {
+                ch = 1;
+            }
+        }
+
+    }
+}
+
+/*
+ * Unpacks a SBC frame at the beginning of the stream in data,
+ * which has at most len bytes into frame.
+ * Returns the length in bytes of the packed frame, or a negative
+ * value on error. The error codes are:
+ *
+ *  -1   Data stream too short
+ *  -2   Sync byte incorrect
+ *  -3   CRC8 incorrect
+ *  -4   Bitpool value out of bounds
+ */
+static int sbc_unpack_frame(const uint8_t * data, struct sbc_frame *frame, size_t len)
+{
+    UINT consumed;
+    /* Will copy the parts of the header that are relevant to crc calculation here */
+    uint8_t crc_header[11] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
+    int crc_pos = 0;
+    int32_t temp;
+
+    uint8_t sf;     /* sampling_frequency, temporarily needed as array index */
+
+//  int audio_sample;
+    int ch, sb, blk, bit;   /* channel, subband, block and bit standard counters */
+    int bits[2][8];     /* bits distribution */
+    int levels[2][8];   /* levels derived from that */
+
+    if (len < 4)
+    {
+        //DbgPrint("Exit when len < 4\n");
+        return -1;
+    }
+
+    if (data[0] != SBC_SYNCWORD)
+    {
+        //DbgPrint("Exit when data[0] != SBC_SYNCWORD\n");
+        return -2;
+    }
+
+#if 0
+    sf = (data[1] >> 6) & 0x03;
+    switch (sf) {
+    case SBC_FS_16:
+        frame->sampling_frequency = 16000;
+        break;
+    case SBC_FS_32:
+        frame->sampling_frequency = 32000;
+        break;
+    case SBC_FS_44:
+        frame->sampling_frequency = 44100;
+        break;
+    case SBC_FS_48:
+        frame->sampling_frequency = 48000;
+        break;
+    }
+
+    switch ((data[1] >> 4) & 0x03) {
+    case SBC_NB_4:
+        frame->blocks = 4;
+        break;
+    case SBC_NB_8:
+        frame->blocks = 8;
+        break;
+    case SBC_NB_12:
+        frame->blocks = 12;
+        break;
+    case SBC_NB_16:
+        frame->blocks = 16;
+        break;
+    }
+
+    frame->channel_mode = (data[1] >> 2) & 0x03;
+    switch (frame->channel_mode) {
+    case MONO:
+        frame->channels = 1;
+        break;
+    case DUAL_CHANNEL:  /* fall-through */
+    case STEREO:
+    case JOINT_STEREO:
+        frame->channels = 2;
+        break;
+    }
+
+    frame->allocation_method = (data[1] >> 1) & 0x01;
+    frame->subbands = (data[1] & 0x01) ? 8 : 4;
+    frame->bitpool = data[2];
+#endif
+
+    frame->sampling_frequency = 16000;
+    frame->blocks = 15;
+    frame->channel_mode = MONO;
+    frame->channels = 1;
+    frame->allocation_method  = SBC_AM_LOUDNESS;
+    frame->subbands = 8;
+    frame->bitpool = 26;
+
+
+    if (((frame->channel_mode == MONO || frame->channel_mode == DUAL_CHANNEL)
+         && frame->bitpool > 16 * frame->subbands)
+        || ((frame->channel_mode == STEREO || frame->channel_mode == JOINT_STEREO)
+        && frame->bitpool > 32 * frame->subbands))
+    {
+        //DbgPrint("Exit when frame->mode == MONO || frame->mode == DUAL_CHANNEL) &&"
+        //  "frame->bitpool > 16 * frame->subbands\n");
+        return -4;
+    }
+
+    /* data[3] is crc, we're checking it later */
+    consumed = 32;
+#if 1
+    crc_header[0] = data[1];
+    crc_header[1] = data[2];
+#endif
+
+#if 0
+    crc_header[0] = 0x31;
+    crc_header[1] = 0x1a;
+#endif
+
+    crc_pos = 16;
+
+    if (frame->channel_mode == JOINT_STEREO)
+    {
+        if (len * 8 < consumed + frame->subbands)
+            return -1;
+
+        frame->join = 0x00;
+        for (sb = 0; sb < frame->subbands - 1; sb++) {
+            frame->join |= ((data[4] >> (7 - sb)) & 0x01) << sb;
+        }
+        if (frame->subbands == 4) {
+            crc_header[crc_pos / 8] = data[4] & 0xf0;
+        } else {
+            crc_header[crc_pos / 8] = data[4];
+        }
+
+        consumed += frame->subbands;
+        crc_pos += frame->subbands;
+    }
+
+    if (len * 8 < consumed + (4 * frame->subbands * frame->channels))
+    {
+        //DbgPrint("len * 8 < consumed + (4 * frame->subbands * frame->channels\n");
+        return -1;
+    }
+
+    for (ch = 0; ch < frame->channels; ch++)
+    {
+        for (sb = 0; sb < frame->subbands; sb++)
+        {
+            /* FIXME assert(consumed % 4 == 0); */
+            frame->scale_factor[ch][sb] = (data[consumed >> 3] >> (4 - (consumed & 0x7))) & 0x0F;
+            crc_header[crc_pos >> 3] |= frame->scale_factor[ch][sb] << (4 - (crc_pos & 0x7));
+
+            consumed += 4;
+            crc_pos += 4;
+        }
+    }
+
+    if (data[3] != sbc_crc8(crc_header, crc_pos))
+    {
+        ALOGD("sbc_crc %02x -> %02x\n",data[3],sbc_crc8(crc_header, crc_pos));
+        return -3;
+    }
+
+    sf = SBC_FS_16;
+    sbc_calculate_bits(frame, bits, sf);
+
+    for (ch = 0; ch < frame->channels; ch++)
+    {
+        for (sb = 0; sb < frame->subbands; sb++)
+        {
+            levels[ch][sb] = (1 << bits[ch][sb]) - 1;
+        }
+    }
+#if 0
+    for (blk = 0; blk < frame->blocks; blk++)
+    {
+        for (ch = 0; ch < frame->channels; ch++)
+        {
+            for (sb = 0; sb < frame->subbands; sb++)
+            {
+                if (levels[ch][sb] > 0)
+                {
+                    audio_sample = 0;
+                    for (bit = 0; bit < bits[ch][sb]; bit++)
+                    {
+                        if (consumed > len * 8)
+                        {
+                            LogEvent("Exit when consumed > len * 8\n");
+                            return -1;
+                        }
+
+                        if ((data[consumed >> 3] >> (7 - (consumed & 0x7))) & 0x01)
+                            audio_sample |= 1 << (bits[ch][sb] - bit - 1);
+
+                        consumed++;
+                    }
+
+                    frame->sb_sample[blk][ch][sb] =
+                        (((audio_sample << 1) | 1) << frame->scale_factor[ch][sb]) /
+                        levels[ch][sb] - (1 << frame->scale_factor[ch][sb]);
+                }
+
+                else
+                    frame->sb_sample[blk][ch][sb] = 0;
+            }
+        }
+    }
+#endif
+
+#if 1
+
+    for (blk = 0; blk < frame->blocks; blk++)
+    {
+        for (ch = 0; ch < frame->channels; ch++)
+        {
+            for (sb = 0; sb < frame->subbands; sb++)
+            {
+                frame->audio_sample[blk][ch][sb] = 0;
+                if (bits[ch][sb] == 0)
+                    continue;
+
+                for (bit = 0; bit < bits[ch][sb]; bit++)
+                {
+                    int b;  /* A bit */
+                    if (consumed > len * 8)
+                        return -1;
+
+                    b = (data[consumed >> 3] >> (7 - (consumed & 0x7))) & 0x01;
+                    frame->audio_sample[blk][ch][sb] |= b << (bits[ch][sb] - bit - 1);
+
+                    consumed++;
+                }
+            }
+        }
+    }
+
+    for (blk = 0; blk < frame->blocks; blk++)
+    {
+        for (ch = 0; ch < frame->channels; ch++)
+        {
+            for (sb = 0; sb < frame->subbands; sb++)
+            {
+                if (levels[ch][sb] > 0)
+                {
+                    frame->sb_sample[blk][ch][sb] =
+                        (((frame->audio_sample[blk][ch][sb] << 16) | 0x8000) / levels[ch][sb]) - 0x8000;
+
+                    frame->sb_sample[blk][ch][sb] >>= 3;
+                    frame->sb_sample[blk][ch][sb] = (frame->sb_sample[blk][ch][sb] << (frame->scale_factor[ch][sb] + 1)); // Q13
+                }
+                else
+                {
+                    frame->sb_sample[blk][ch][sb] = 0;
+                }
+            }
+        }
+    }
+#endif
+
+    if (frame->channel_mode == JOINT_STEREO)
+    {
+        for (blk = 0; blk < frame->blocks; blk++)
+        {
+            for (sb = 0; sb < frame->subbands; sb++)
+            {
+                if (frame->join & (0x01 << sb)) {
+                    temp = frame->sb_sample[blk][0][sb] + frame->sb_sample[blk][1][sb];
+                    frame->sb_sample[blk][1][sb] = frame->sb_sample[blk][0][sb] - frame->sb_sample[blk][1][sb];
+                    frame->sb_sample[blk][0][sb] = temp;
+                }
+            }
+        }
+    }
+
+    if ((consumed & 0x7) != 0)
+        consumed += 8 - (consumed & 0x7);
+
+
+    return consumed >> 3;
+}
+
+static void sbc_decoder_init(struct sbc_decoder_state *state, const struct sbc_frame *frame)
+{
+    int i, ch;
+
+    memset(state->V, 0, sizeof(state->V));
+    state->subbands = frame->subbands;
+
+    for (ch = 0; ch < 2; ch++)
+        for (i = 0; i < frame->subbands * 2; i++)
+            state->offset[ch][i] = (10 * i + 10);
+}
+
+static __inline void sbc_synthesize_four(struct sbc_decoder_state *state,
+                struct sbc_frame *frame, int ch, int blk)
+{
+    int i, j, k, idx;
+    sbc_extended_t res;
+
+    for(i = 0; i < 8; i++) {
+        /* Shifting */
+        state->offset[ch][i]--;
+        if(state->offset[ch][i] < 0) {
+            state->offset[ch][i] = 79;
+            for(j = 0; j < 9; j++) {
+                state->V[ch][j+80] = state->V[ch][j];
+            }
+        }
+    }
+
+
+    for(i = 0; i < 8; i++) {
+        /* Distribute the new matrix value to the shifted position */
+        SBC_FIXED_0(res);
+        for (j = 0; j < 4; j++) {
+            MULA(res, synmatrix4[i][j], frame->sb_sample[blk][ch][j]);
+        }
+        state->V[ch][state->offset[ch][i]] = SCALE4_STAGED1(res);
+    }
+
+    /* Compute the samples */
+    for(idx = 0, i = 0; i < 4; i++) {
+        k = (i + 4) & 0xf;
+        SBC_FIXED_0(res);
+        for(j = 0; j < 10; idx++) {
+        MULA(res, state->V[ch][state->offset[ch][i]+j++], sbc_proto_4_40m0[idx]);
+            MULA(res, state->V[ch][state->offset[ch][k]+j++], sbc_proto_4_40m1[idx]);
+        }
+        /* Store in output */
+        frame->pcm_sample[ch][blk * 4 + i] = (short)SCALE4_STAGED2(res); // Q0
+    }
+}
+
+static __inline void sbc_synthesize_eight(struct sbc_decoder_state *state,
+                struct sbc_frame *frame, int ch, int blk)
+{
+    int i, j, k, idx;
+    sbc_extended_t res;
+
+    for(i = 0; i < 16; i++) {
+        /* Shifting */
+        state->offset[ch][i]--;
+        if(state->offset[ch][i] < 0) {
+            state->offset[ch][i] = 159;
+            for(j = 0; j < 9; j++) {
+                state->V[ch][j+160] = state->V[ch][j];
+            }
+        }
+    }
+
+    for(i = 0; i < 16; i++) {
+        /* Distribute the new matrix value to the shifted position */
+        SBC_FIXED_0(res);
+        for (j = 0; j < 8; j++) {
+            MULA(res, synmatrix8[i][j], frame->sb_sample[blk][ch][j]); // Q28 = Q15 * Q13
+        }
+        state->V[ch][state->offset[ch][i]] = SCALE8_STAGED1(res); // Q10
+    }
+
+
+    /* Compute the samples */
+    for(idx = 0, i = 0; i < 8; i++) {
+        k = (i + 8) & 0xf;
+        SBC_FIXED_0(res);
+        for(j = 0; j < 10; idx++) {
+            MULA(res, state->V[ch][state->offset[ch][i]+j++], sbc_proto_8_80m0[idx]);
+            MULA(res, state->V[ch][state->offset[ch][k]+j++], sbc_proto_8_80m1[idx]);
+        }
+        /* Store in output */
+        frame->pcm_sample[ch][blk * 8 + i] = (short)SCALE8_STAGED2(res); // Q0
+
+    }
+}
+
+static int sbc_synthesize_audio(struct sbc_decoder_state *state, struct sbc_frame *frame)
+{
+    int ch, blk;
+
+    switch (frame->subbands) {
+    case 4:
+        for (ch = 0; ch < frame->channels; ch++) {
+            for (blk = 0; blk < frame->blocks; blk++)
+                sbc_synthesize_four(state, frame, ch, blk);
+        }
+        return frame->blocks * 4;
+
+    case 8:
+        for (ch = 0; ch < frame->channels; ch++) {
+            for (blk = 0; blk < frame->blocks; blk++)
+                sbc_synthesize_eight(state, frame, ch, blk);
+        }
+        return frame->blocks * 8;
+
+    default:
+        return -EIO;
+    }
+}
+
+static void sbc_encoder_init(struct sbc_encoder_state *state, const struct sbc_frame *frame)
+{
+    memset(&state->X, 0, sizeof(state->X));
+    state->subbands = frame->subbands;
+}
+
+static __inline void _sbc_analyze_four(const int32_t *in, int32_t *out)
+{
+
+    sbc_extended_t res;
+    sbc_extended_t t[8];
+
+    out[0] = out[1] = out[2] = out[3] = 0;
+
+    MUL(res, _sbc_proto_4[0], (in[8] - in[32])); // Q18
+    MULA(res, _sbc_proto_4[1], (in[16] - in[24]));
+    t[0] = SCALE4_STAGE1(res); // Q8
+
+    MUL(res, _sbc_proto_4[2], in[1]);
+    MULA(res, _sbc_proto_4[3], in[9]);
+    MULA(res, _sbc_proto_4[4], in[17]);
+    MULA(res, _sbc_proto_4[5], in[25]);
+    MULA(res, _sbc_proto_4[6], in[33]);
+    t[1] = SCALE4_STAGE1(res);
+
+    MUL(res, _sbc_proto_4[7], in[2]);
+    MULA(res, _sbc_proto_4[8], in[10]);
+    MULA(res, _sbc_proto_4[9], in[18]);
+    MULA(res, _sbc_proto_4[10], in[26]);
+    MULA(res, _sbc_proto_4[11], in[34]);
+    t[2] = SCALE4_STAGE1(res);
+
+    MUL(res, _sbc_proto_4[12], in[3]);
+    MULA(res, _sbc_proto_4[13], in[11]);
+    MULA(res, _sbc_proto_4[14], in[19]);
+    MULA(res, _sbc_proto_4[15], in[27]);
+    MULA(res, _sbc_proto_4[16], in[35]);
+    t[3] = SCALE4_STAGE1(res);
+
+    MUL(res, _sbc_proto_4[17], in[4]);
+    MULA(res, _sbc_proto_4[18], (in[12] + in[28]));
+    MULA(res, _sbc_proto_4[19], in[20]);
+    MULA(res, _sbc_proto_4[17], in[36]);
+    t[4] = SCALE4_STAGE1(res);
+
+    MUL(res, _sbc_proto_4[16], in[5]);
+    MULA(res, _sbc_proto_4[15], in[13]);
+    MULA(res, _sbc_proto_4[14], in[21]);
+    MULA(res, _sbc_proto_4[13], in[29]);
+    MULA(res, _sbc_proto_4[12], in[37]);
+    t[5] = SCALE4_STAGE1(res);
+
+    MUL(res, _sbc_proto_4[11], in[6]);
+    MULA(res, _sbc_proto_4[10], in[14]);
+    MULA(res, _sbc_proto_4[9], in[22]);
+    MULA(res, _sbc_proto_4[8], in[30]);
+    MULA(res, _sbc_proto_4[7], in[38]);
+    t[6] = SCALE4_STAGE1(res);
+
+    MUL(res, _sbc_proto_4[6], in[7]);
+    MULA(res, _sbc_proto_4[5], in[15]);
+    MULA(res, _sbc_proto_4[4], in[23]);
+    MULA(res, _sbc_proto_4[3], in[31]);
+    MULA(res, _sbc_proto_4[2], in[39]);
+    t[7] = SCALE4_STAGE1(res);
+
+    MUL(res, _anamatrix4[0], t[0]);
+    MULA(res, _anamatrix4[1], t[1]);
+    MULA(res, _anamatrix4[2], t[2]);
+    MULA(res, _anamatrix4[1], t[3]);
+    MULA(res, _anamatrix4[0], t[4]);
+    MULA(res, _anamatrix4[3], t[5]);
+    MULA(res, -_anamatrix4[3], t[7]);
+    out[0] = (int)SCALE4_STAGE2(res); // Q0
+
+    MUL(res, -_anamatrix4[0], t[0]);
+    MULA(res, _anamatrix4[3], t[1]);
+    MULA(res, _anamatrix4[2], t[2]);
+    MULA(res, _anamatrix4[3], t[3]);
+    MULA(res, -_anamatrix4[0], t[4]);
+    MULA(res, -_anamatrix4[1], t[5]);
+    MULA(res, _anamatrix4[1], t[7]);
+    out[1] = (int)SCALE4_STAGE2(res);
+
+
+    MUL(res, -_anamatrix4[0], t[0]);
+    MULA(res, -_anamatrix4[3], t[1]);
+    MULA(res, _anamatrix4[2], t[2]);
+    MULA(res, -_anamatrix4[3], t[3]);
+    MULA(res, -_anamatrix4[0], t[4]);
+    MULA(res, _anamatrix4[1], t[5]);
+    MULA(res, -_anamatrix4[1], t[7]);
+    out[2] = (int)SCALE4_STAGE2(res);
+
+    MUL(res, _anamatrix4[0], t[0]);
+    MULA(res, -_anamatrix4[1], t[1]);
+    MULA(res, _anamatrix4[2], t[2]);
+    MULA(res, -_anamatrix4[1], t[3]);
+    MULA(res, _anamatrix4[0], t[4]);
+    MULA(res, -_anamatrix4[3], t[5]);
+    MULA(res, _anamatrix4[3], t[7]);
+    out[3] = (int)SCALE4_STAGE2(res);
+}
+static __inline  void sbc_analyze_four(struct sbc_encoder_state *state,
+                struct sbc_frame *frame, int ch, int blk)
+{
+    int i;
+    /* Input 4 New Audio Samples */
+    for (i = 39; i >= 4; i--)
+        state->X[ch][i] = state->X[ch][i - 4];
+    for (i = 3; i >= 0; i--)
+        state->X[ch][i] = frame->pcm_sample[ch][blk * 4 + (3 - i)];
+    _sbc_analyze_four(state->X[ch], frame->sb_sample_f[blk][ch]);
+}
+
+static __inline void _sbc_analyze_eight(const int32_t *in, int32_t *out)
+{
+    sbc_extended_t res;
+    sbc_extended_t t[8];
+
+    out[0] = out[1] = out[2] = out[3] = out[4] = out[5] = out[6] = out[7] = 0;
+
+    MUL(res,  _sbc_proto_8[0], (in[16] - in[64])); // Q18 = Q18 * Q0
+    MULA(res, _sbc_proto_8[1], (in[32] - in[48]));
+    MULA(res, _sbc_proto_8[2], in[4]);
+    MULA(res, _sbc_proto_8[3], in[20]);
+    MULA(res, _sbc_proto_8[4], in[36]);
+    MULA(res, _sbc_proto_8[5], in[52]);
+    t[0] = SCALE8_STAGE1(res); // Q10
+
+    MUL(res,   _sbc_proto_8[6], in[2]);
+    MULA(res,  _sbc_proto_8[7], in[18]);
+    MULA(res,  _sbc_proto_8[8], in[34]);
+    MULA(res,  _sbc_proto_8[9], in[50]);
+    MULA(res, _sbc_proto_8[10], in[66]);
+    t[1] = SCALE8_STAGE1(res);
+
+    MUL(res,  _sbc_proto_8[11], in[1]);
+    MULA(res, _sbc_proto_8[12], in[17]);
+    MULA(res, _sbc_proto_8[13], in[33]);
+    MULA(res, _sbc_proto_8[14], in[49]);
+    MULA(res, _sbc_proto_8[15], in[65]);
+    MULA(res, _sbc_proto_8[16], in[3]);
+    MULA(res, _sbc_proto_8[17], in[19]);
+    MULA(res, _sbc_proto_8[18], in[35]);
+    MULA(res, _sbc_proto_8[19], in[51]);
+    MULA(res, _sbc_proto_8[20], in[67]);
+    t[2] = SCALE8_STAGE1(res);
+
+    MUL(res,   _sbc_proto_8[21], in[5]);
+    MULA(res,  _sbc_proto_8[22], in[21]);
+    MULA(res,  _sbc_proto_8[23], in[37]);
+    MULA(res,  _sbc_proto_8[24], in[53]);
+    MULA(res,  _sbc_proto_8[25], in[69]);
+    MULA(res, -_sbc_proto_8[15], in[15]);
+    MULA(res, -_sbc_proto_8[14], in[31]);
+    MULA(res, -_sbc_proto_8[13], in[47]);
+    MULA(res, -_sbc_proto_8[12], in[63]);
+    MULA(res, -_sbc_proto_8[11], in[79]);
+    t[3] = SCALE8_STAGE1(res);
+
+    MUL(res,   _sbc_proto_8[26], in[6]);
+    MULA(res,  _sbc_proto_8[27], in[22]);
+    MULA(res,  _sbc_proto_8[28], in[38]);
+    MULA(res,  _sbc_proto_8[29], in[54]);
+    MULA(res,  _sbc_proto_8[30], in[70]);
+    MULA(res, -_sbc_proto_8[10], in[14]);
+    MULA(res,  -_sbc_proto_8[9], in[30]);
+    MULA(res,  -_sbc_proto_8[8], in[46]);
+    MULA(res,  -_sbc_proto_8[7], in[62]);
+    MULA(res,  -_sbc_proto_8[6], in[78]);
+    t[4] = SCALE8_STAGE1(res);
+
+    MUL(res,   _sbc_proto_8[31], in[7]);
+    MULA(res,  _sbc_proto_8[32], in[23]);
+    MULA(res,  _sbc_proto_8[33], in[39]);
+    MULA(res,  _sbc_proto_8[34], in[55]);
+    MULA(res,  _sbc_proto_8[35], in[71]);
+    MULA(res, -_sbc_proto_8[20], in[13]);
+    MULA(res, -_sbc_proto_8[19], in[29]);
+    MULA(res, -_sbc_proto_8[18], in[45]);
+    MULA(res, -_sbc_proto_8[17], in[61]);
+    MULA(res, -_sbc_proto_8[16], in[77]);
+    t[5] = SCALE8_STAGE1(res);
+
+    MUL(res,   _sbc_proto_8[36], (in[8] + in[72]));
+    MULA(res,  _sbc_proto_8[37], in[24]);
+    MULA(res,  _sbc_proto_8[38], in[40]);
+    MULA(res,  _sbc_proto_8[37], in[56]);
+    MULA(res, -_sbc_proto_8[39], in[12]);
+    MULA(res,  -_sbc_proto_8[5], in[28]);
+    MULA(res,  -_sbc_proto_8[4], in[44]);
+    MULA(res,  -_sbc_proto_8[3], in[60]);
+    MULA(res,  -_sbc_proto_8[2], in[76]);
+    t[6] = SCALE8_STAGE1(res);
+
+    MUL(res,   _sbc_proto_8[35], in[9]);
+    MULA(res,  _sbc_proto_8[34], in[25]);
+    MULA(res,  _sbc_proto_8[33], in[41]);
+    MULA(res,  _sbc_proto_8[32], in[57]);
+    MULA(res,  _sbc_proto_8[31], in[73]);
+    MULA(res, -_sbc_proto_8[25], in[11]);
+    MULA(res, -_sbc_proto_8[24], in[27]);
+    MULA(res, -_sbc_proto_8[23], in[43]);
+    MULA(res, -_sbc_proto_8[22], in[59]);
+    MULA(res, -_sbc_proto_8[21], in[75]);
+    t[7] = SCALE8_STAGE1(res);
+
+    MUL(res, _anamatrix8[0], t[0]); // = Q14 * Q10
+    MULA(res, _anamatrix8[7], t[1]);
+    MULA(res, _anamatrix8[2], t[2]);
+    MULA(res, _anamatrix8[3], t[3]);
+    MULA(res, _anamatrix8[6], t[4]);
+    MULA(res, _anamatrix8[4], t[5]);
+    MULA(res, _anamatrix8[1], t[6]);
+    MULA(res, _anamatrix8[5], t[7]);
+    out[0] = (int)SCALE8_STAGE2(res); // Q0
+
+    MUL(res, _anamatrix8[1], t[0]);
+    MULA(res, _anamatrix8[7], t[1]);
+    MULA(res, _anamatrix8[3], t[2]);
+    MULA(res, -_anamatrix8[5], t[3]);
+    MULA(res, -_anamatrix8[6], t[4]);
+    MULA(res, -_anamatrix8[2], t[5]);
+    MULA(res, -_anamatrix8[0], t[6]);
+    MULA(res, -_anamatrix8[4], t[7]);
+    out[1] = (int)SCALE8_STAGE2(res);
+
+    MUL(res, -_anamatrix8[1], t[0]);
+    MULA(res, _anamatrix8[7], t[1]);
+    MULA(res, _anamatrix8[4], t[2]);
+    MULA(res, -_anamatrix8[2], t[3]);
+    MULA(res, -_anamatrix8[6], t[4]);
+    MULA(res, _anamatrix8[5], t[5]);
+    MULA(res, _anamatrix8[0], t[6]);
+    MULA(res, _anamatrix8[3], t[7]);
+    out[2] = (int)SCALE8_STAGE2(res);
+
+    MUL(res, -_anamatrix8[0], t[0]);
+    MULA(res, _anamatrix8[7], t[1]);
+    MULA(res, _anamatrix8[5], t[2]);
+    MULA(res, -_anamatrix8[4], t[3]);
+    MULA(res, _anamatrix8[6], t[4]);
+    MULA(res, _anamatrix8[3], t[5]);
+    MULA(res, -_anamatrix8[1], t[6]);
+    MULA(res, -_anamatrix8[2], t[7]);
+    out[3] = (int)SCALE8_STAGE2(res);
+
+    MUL(res, -_anamatrix8[0], t[0]);
+    MULA(res, _anamatrix8[7], t[1]);
+    MULA(res, -_anamatrix8[5], t[2]);
+    MULA(res, _anamatrix8[4], t[3]);
+    MULA(res, _anamatrix8[6], t[4]);
+    MULA(res, -_anamatrix8[3], t[5]);
+    MULA(res, -_anamatrix8[1], t[6]);
+    MULA(res, _anamatrix8[2], t[7]);
+    out[4] = (int)SCALE8_STAGE2(res);
+
+    MUL(res, -_anamatrix8[1], t[0]);
+    MULA(res, _anamatrix8[7], t[1]);
+    MULA(res, -_anamatrix8[4], t[2]);
+    MULA(res, _anamatrix8[2], t[3]);
+    MULA(res, -_anamatrix8[6], t[4]);
+    MULA(res, -_anamatrix8[5], t[5]);
+    MULA(res, _anamatrix8[0], t[6]);
+    MULA(res, -_anamatrix8[3], t[7]);
+    out[5] = (int)SCALE8_STAGE2(res);
+
+    MUL(res, _anamatrix8[1], t[0]);
+    MULA(res, _anamatrix8[7], t[1]);
+    MULA(res, -_anamatrix8[3], t[2]);
+    MULA(res, _anamatrix8[5], t[3]);
+    MULA(res, -_anamatrix8[6], t[4]);
+    MULA(res, _anamatrix8[2], t[5]);
+    MULA(res, -_anamatrix8[0], t[6]);
+    MULA(res, _anamatrix8[4], t[7]);
+    out[6] = (int)SCALE8_STAGE2(res);
+
+    MUL(res, _anamatrix8[0], t[0]);
+    MULA(res, _anamatrix8[7], t[1]);
+    MULA(res, -_anamatrix8[2], t[2]);
+    MULA(res, -_anamatrix8[3], t[3]);
+    MULA(res, _anamatrix8[6], t[4]);
+    MULA(res, -_anamatrix8[4], t[5]);
+    MULA(res, _anamatrix8[1], t[6]);
+    MULA(res, -_anamatrix8[5], t[7]);
+    out[7] = (int)SCALE8_STAGE2(res);
+}
+
+static __inline void sbc_analyze_eight(struct sbc_encoder_state *state,
+                     struct sbc_frame *frame, int ch, int blk)
+{
+    int i;
+
+    /* Input 8 Audio Samples */
+    for (i = 79; i >= 8; i--)
+        state->X[ch][i] = state->X[ch][i - 8];
+    for (i = 7; i >= 0; i--)
+        state->X[ch][i] = frame->pcm_sample[ch][blk * 8 + (7 - i)];
+    _sbc_analyze_eight(state->X[ch], frame->sb_sample_f[blk][ch]);
+}
+
+static int sbc_analyze_audio(struct sbc_encoder_state *state, struct sbc_frame *frame)
+{
+    int ch, blk;
+
+    switch (frame->subbands)
+    {
+        case 4:
+            for (ch = 0; ch < frame->channels; ch++)
+                for (blk = 0; blk < frame->blocks; blk++) {
+                    sbc_analyze_four(state, frame, ch, blk);
+                }
+            return frame->blocks * 4;
+
+        case 8:
+            for (ch = 0; ch < frame->channels; ch++)
+                for (blk = 0; blk < frame->blocks; blk++) {
+                    sbc_analyze_eight(state, frame, ch, blk);
+                }
+            return frame->blocks * 8;
+
+        default:
+            return -EIO;
+    }
+}
+
+/*
+ * Packs the SBC frame from frame into the memory at data. At most len
+ * bytes will be used, should more memory be needed an appropriate
+ * error code will be returned. Returns the length of the packed frame
+ * on success or a negative value on error.
+ *
+ * The error codes are:
+ * -1 Not enough memory reserved
+ * -2 Unsupported sampling rate
+ * -3 Unsupported number of blocks
+ * -4 Unsupported number of subbands
+ * -5 Bitpool value out of bounds
+ * -99 not implemented
+ */
+
+static int sbc_pack_frame(uint8_t * data, struct sbc_frame *frame, size_t len)
+{
+    size_t produced;
+    /* Will copy the header parts for CRC-8 calculation here */
+    uint8_t crc_header[11] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
+    int crc_pos = 0;
+
+    uint8_t sf;     /* Sampling frequency as temporary value for table lookup */
+
+    int ch, sb, blk, bit;   /* channel, subband, block and bit counters */
+    int bits[2][8];     /* bits distribution */
+    int levels[2][8];   /* levels are derived from that */
+
+    u_int32_t scalefactor[2][8];    /* derived from frame->scale_factor */
+
+    if (len < 4)
+    {
+        return -1;
+    }
+
+    /* Clear first 4 bytes of data (that's the constant length part of the SBC header) */
+    memset(data, 0, 4);
+
+    data[0] = SBC_SYNCWORD;
+
+    if (frame->sampling_frequency == 16000)
+    {
+        data[1] |= (SBC_FS_16 & 0x03) << 6;
+        sf = SBC_FS_16;
+    }
+    else if (frame->sampling_frequency == 32000)
+    {
+        data[1] |= (SBC_FS_32 & 0x03) << 6;
+        sf = SBC_FS_32;
+    }
+    else if (frame->sampling_frequency == 44100)
+    {
+        data[1] |= (SBC_FS_44 & 0x03) << 6;
+        sf = SBC_FS_44;
+    }
+    else if (frame->sampling_frequency == 48000)
+    {
+        data[1] |= (SBC_FS_48 & 0x03) << 6;
+        sf = SBC_FS_48;
+    }
+    else
+    {
+        return -2;
+    }
+
+    switch (frame->blocks)
+    {
+    case 4:
+        data[1] |= (SBC_NB_4 & 0x03) << 4;
+        break;
+    case 8:
+        data[1] |= (SBC_NB_8 & 0x03) << 4;
+        break;
+    case 12:
+        data[1] |= (SBC_NB_12 & 0x03) << 4;
+        break;
+    case 15:
+        data[1] |= (SBC_NB_16 & 0x03) << 4;
+        break;
+    default:
+        return -3;
+        break;
+    }
+
+    data[1] |= (frame->channel_mode & 0x03) << 2;
+
+    data[1] |= (frame->allocation_method & 0x01) << 1;
+
+    switch (frame->subbands) {
+    case 4:
+        /* Nothing to do */
+        break;
+    case 8:
+        data[1] |= 0x01;
+        break;
+    default:
+        return -4;
+        break;
+    }
+
+    data[2] = frame->bitpool;
+    if (((frame->channel_mode == MONO || frame->channel_mode == DUAL_CHANNEL)
+         && frame->bitpool > 16 * frame->subbands)
+        || ((frame->channel_mode == STEREO || frame->channel_mode == JOINT_STEREO)
+        && frame->bitpool > 32 * frame->subbands)) {
+        return -5;
+    }
+
+    /* Can't fill in crc yet */
+
+    produced = 32;
+
+    // evan.
+    data[1] = 0x00;
+    data[2] = 0x00;
+
+    crc_header[0] = data[1];
+    crc_header[1] = data[2];
+    crc_pos = 16;
+
+
+    for (ch = 0; ch < frame->channels; ch++) {
+        for (sb = 0; sb < frame->subbands; sb++) {
+            frame->scale_factor[ch][sb] = 0;
+            scalefactor[ch][sb] = 2;
+            for (blk = 0; blk < frame->blocks; blk++) {
+                while (scalefactor[ch][sb] < (u_int32_t)fabs(frame->sb_sample_f[blk][ch][sb])) {
+                    frame->scale_factor[ch][sb]++;
+                    scalefactor[ch][sb] *= 2;
+                }
+            }
+        }
+    }
+
+    if (frame->channel_mode == JOINT_STEREO) {
+        int32_t sb_sample_j[16][2][7]; /* like frame->sb_sample but joint stereo */
+        u_int32_t scalefactor_j[2][7], scale_factor_j[2][7]; /* scalefactor and scale_factor in joint case */
+
+        /* Calculate joint stereo signal */
+        for (sb = 0; sb < frame->subbands - 1; sb++) {
+            for (blk = 0; blk < frame->blocks; blk++) {
+                sb_sample_j[blk][0][sb] = (frame->sb_sample_f[blk][0][sb] +  frame->sb_sample_f[blk][1][sb]) >> 1;
+                sb_sample_j[blk][1][sb] = (frame->sb_sample_f[blk][0][sb] -  frame->sb_sample_f[blk][1][sb]) >> 1;
+            }
+        }
+
+        /* calculate scale_factor_j and scalefactor_j for joint case */
+        for (ch = 0; ch < 2; ch++) {
+            for (sb = 0; sb < frame->subbands - 1; sb++) {
+                scale_factor_j[ch][sb] = 0;
+                scalefactor_j[ch][sb] = 2;
+                for (blk = 0; blk < frame->blocks; blk++) {
+                    while (scalefactor_j[ch][sb] < (u_int32_t)fabs(sb_sample_j[blk][ch][sb])) {
+                        scale_factor_j[ch][sb]++;
+                        scalefactor_j[ch][sb] *= 2;
+                    }
+                }
+            }
+        }
+
+        /* decide which subbands to join */
+        frame->join = 0;
+        for (sb = 0; sb < frame->subbands - 1; sb++) {
+            if ((scalefactor[0][sb] + scalefactor[1][sb]) >
+                    (scalefactor_j[0][sb] + scalefactor_j[1][sb]) ) {
+                /* use joint stereo for this subband */
+                frame->join |= 1 << sb;
+                frame->scale_factor[0][sb] = scale_factor_j[0][sb];
+                frame->scale_factor[1][sb] = scale_factor_j[1][sb];
+                scalefactor[0][sb] = scalefactor_j[0][sb];
+                scalefactor[1][sb] = scalefactor_j[1][sb];
+                for (blk = 0; blk < frame->blocks; blk++) {
+                    frame->sb_sample_f[blk][0][sb] = sb_sample_j[blk][0][sb];
+                    frame->sb_sample_f[blk][1][sb] = sb_sample_j[blk][1][sb];
+                }
+            }
+        }
+
+        if (len * 8 < produced + frame->subbands)
+            return -1;
+
+        data[4] = 0;
+        for (sb = 0; sb < frame->subbands - 1; sb++) {
+            data[4] |= ((frame->join >> sb) & 0x01) << (7 - sb);
+        }
+        if (frame->subbands == 4) {
+            crc_header[crc_pos / 8] = data[4] & 0xf0;
+        } else {
+            crc_header[crc_pos / 8] = data[4];
+        }
+
+        produced += frame->subbands;
+        crc_pos += frame->subbands;
+    }
+
+    if (len * 8 < produced + (4 * frame->subbands * frame->channels))
+        return -1;
+
+    for (ch = 0; ch < frame->channels; ch++) {
+        for (sb = 0; sb < frame->subbands; sb++) {
+            if (produced % 8 == 0)
+                data[produced / 8] = 0;
+            data[produced / 8] |= ((frame->scale_factor[ch][sb] & 0x0F) << (4 - (produced % 8)));
+            crc_header[crc_pos / 8] |= ((frame->scale_factor[ch][sb] & 0x0F) << (4 - (crc_pos % 8)));
+
+            produced += 4;
+            crc_pos += 4;
+        }
+    }
+
+    data[3] = sbc_crc8(crc_header, crc_pos);
+
+
+
+    sbc_calculate_bits(frame, bits, sf);
+
+    for (ch = 0; ch < frame->channels; ch++) {
+        for (sb = 0; sb < frame->subbands; sb++) {
+            levels[ch][sb] = (1 << bits[ch][sb]) - 1;
+        }
+    }
+
+    for (blk = 0; blk < frame->blocks; blk++) {
+        for (ch = 0; ch < frame->channels; ch++) {
+            for (sb = 0; sb < frame->subbands; sb++) {
+                if (levels[ch][sb] > 0) {
+                    frame->audio_sample[blk][ch][sb] =
+                        (uint16_t) ((((frame->sb_sample_f[blk][ch][sb]*levels[ch][sb]) >> (frame->scale_factor[ch][sb] + 1)) +
+                        levels[ch][sb]) >> 1);
+                } else {
+                    frame->audio_sample[blk][ch][sb] = 0;
+                }
+            }
+        }
+    }
+
+    for (blk = 0; blk < frame->blocks; blk++) {
+        for (ch = 0; ch < frame->channels; ch++) {
+            for (sb = 0; sb < frame->subbands; sb++) {
+                if (bits[ch][sb] != 0) {
+                    for (bit = 0; bit < bits[ch][sb]; bit++) {
+                        int b;  /* A bit */
+                        if (produced > len * 8) {
+                            return -1;
+                        }
+                        if (produced % 8 == 0) {
+                            data[produced / 8] = 0;
+                        }
+                        b = ((frame->audio_sample[blk][ch][sb]) >> (bits[ch][sb] - bit -
+                                                1)) & 0x01;
+                        data[produced / 8] |= b << (7 - (produced % 8));
+                        produced++;
+                    }
+                }
+            }
+        }
+    }
+
+    if (produced % 8 != 0) {
+        produced += 8 - (produced % 8);
+    }
+
+    return (int)(produced / 8);
+}
+
+struct sbc_priv {
+    int init;
+    struct sbc_frame frame;
+    struct sbc_decoder_state dec_state;
+    struct sbc_encoder_state enc_state;
+};
+
+int sbc_init(sbc_t *sbc, unsigned long flags)
+{
+    if (!sbc)
+        return -EIO;
+
+    flags = flags;
+
+    memset(sbc, 0, sizeof(sbc_t));
+
+    sbc->priv = malloc(sizeof(struct sbc_priv) + SBC_ALIGN_MASK);
+    if (!sbc->priv)
+        return -ENOMEM;
+    memset(sbc->priv, 0, sizeof(struct sbc_priv));
+
+    sbc->rate = 16000;
+    sbc->channels = 1;
+    sbc->joint = 0;
+    sbc->subbands = 8;
+    sbc->blocks = 15;
+    sbc->bitpool = 26;
+
+    return 0;
+}
+
+int sbc_reinit(sbc_t *sbc, unsigned long flags)
+{
+    struct sbc_priv *priv;
+
+    if (!sbc || !sbc->priv)
+        return -EIO;
+
+    flags = flags;
+    priv = sbc->priv;
+
+    if (priv->init == 1)
+        memset(sbc->priv, 0, sizeof(struct sbc_priv));
+
+    return 0;
+}
+
+
+int sbc_decode(sbc_t *sbc, void *input, int input_len, void *output,
+               int output_len, int *written)
+{
+    struct sbc_priv *priv;
+    char *ptr;
+    int i, ch, framelen, samples;
+
+    if (!sbc)
+    {
+        //DbgPrint("Exit.when sbc is NULL.\n");
+        return -EIO;
+    }
+
+    if (!sbc && !input)
+    {
+        //DbgPrint("!sbc && !input\n");
+        return -EIO;
+    }
+
+    priv = sbc->priv;
+    if(!priv)
+        return -99;
+
+    framelen = sbc_unpack_frame(input, &priv->frame, input_len);
+
+    if (!priv->init)
+    {
+        sbc_decoder_init(&priv->dec_state, &priv->frame);
+        priv->init = 1;
+
+        sbc->rate = priv->frame.sampling_frequency;
+        sbc->channels = priv->frame.channels;
+        sbc->subbands = priv->frame.subbands;
+        sbc->blocks = priv->frame.blocks;
+        sbc->bitpool = priv->frame.bitpool;
+    }
+
+    if (!output)
+    {
+        //DbgPrint("!output\n");
+        return framelen;
+    }
+
+    if (written)
+        *written = 0;
+
+    if (framelen <= 0)
+    {
+        //DbgPrint("Exit when framelen <= 0\n");
+        return framelen;
+    }
+
+    samples = sbc_synthesize_audio(&priv->dec_state, &priv->frame);
+
+    ptr = output;
+    if (output_len < samples * priv->frame.channels * 2)
+        samples = output_len / (priv->frame.channels * 2);
+
+/*
+    if (!sbc->data)
+    {
+        sbc->size = samples * priv->frame.channels * 2;
+        sbc->data = malloc(sbc->size);
+    }
+
+
+    if (sbc->size < samples * priv->frame.channels * 2)
+    {
+        sbc->size = samples * priv->frame.channels * 2;
+        sbc->data = realloc(sbc->data, sbc->size);
+    }
+
+    if (!sbc->data)
+    {
+        sbc->size = 0;
+        return -ENOMEM;
+    }
+*/
+
+    for (i = 0; i < samples; i++)
+    {
+        for (ch = 0; ch < priv->frame.channels; ch++)
+        {
+            int16_t s;
+            s = priv->frame.pcm_sample[ch][i];
+        /*
+            *ptr++ = (s & 0xff00) >> 8;
+            *ptr++ = (s & 0x00ff);
+        */
+            *ptr++ = (s & 0x00ff);
+            *ptr++ = (s & 0xff00) >> 8;
+        }
+    }
+
+    if (written)
+        *written = samples * priv->frame.channels * 2;
+
+    return framelen;
+}
+
+int sbc_encode(sbc_t *sbc, void *input, int input_len, void *output,
+               int output_len, int *written)
+{
+    struct sbc_priv *priv;
+    char *ptr;
+    int i, ch, framelen, samples;
+
+    if (!sbc)
+    {
+        //DbgPrint("Exit, when !sbc.\n");
+        return -EIO;
+    }
+
+
+    if (!sbc && !input)
+    {
+        //DbgPrint("Exit, when !sbc && !input.\n");
+        return -EIO;
+    }
+
+    /// make sure sbc has been initialized
+    priv = sbc->priv;
+    if(priv == NULL){
+        //DbgPrint("priv == NULL\n");
+        return -EIO;
+    }
+
+    if (written)
+        *written = 0;
+
+    if (!priv->init)
+    {
+        //DbgPrint("Initial priv->frame ,when priv->init is null\n");
+        priv->frame.sampling_frequency = sbc->rate;
+        priv->frame.channels = sbc->channels;
+        priv->frame.channel_mode = MONO;
+        priv->frame.allocation_method = LOUDNESS;
+        priv->frame.subbands = sbc->subbands;
+        priv->frame.blocks = sbc->blocks;
+        priv->frame.bitpool = sbc->bitpool;
+
+        sbc_encoder_init(&priv->enc_state, &priv->frame);
+        priv->init = 1;
+    }
+
+    /* input must be large enough to encode a complete frame */
+    if (input_len < 240)
+    {
+        //DbgPrint("Exit, when input_len < priv->frame.codesize..\n");
+        return 0;
+    }
+
+    /* output must be large enough to receive the encoded frame */
+    if (!output || output_len < 57)
+    {
+        //DbgPrint("Exit, when !output || output_len < priv->frame.length\n");
+        return -ENOSPC;
+    }
+
+    ptr = input;
+    for (i = 0; i < priv->frame.subbands * priv->frame.blocks; i++)
+    {
+        for (ch = 0; ch < sbc->channels; ch++)
+        {
+        //  int16_t s = (ptr[0] & 0xff) << 8 | (ptr[1] & 0xff);
+            int16_t s = (ptr[1] & 0xff) << 8 | (ptr[0] & 0xff);
+            ptr += 2;
+            priv->frame.pcm_sample[ch][i] = s;
+        }
+    }
+
+    samples = 0;
+    samples = sbc_analyze_audio(&priv->enc_state, &priv->frame);
+
+    if (!sbc->data)
+    {
+        sbc->size = 1024;
+//      sbc->data = malloc(sbc->size);
+        sbc->data = malloc(sbc->size);
+        if (!sbc->data)
+        {
+            //DbgPrint("sbc->data allocate failed!!!\n");
+            return -ENOMEM;
+        }
+        memset(sbc->data, 0, sbc->size);
+    }
+
+    if (!sbc->data)
+    {
+        sbc->size = 0;
+        //DbgPrint("sbc->data is null, so exit!!!\n");
+        return -ENOMEM;
+    }
+
+    framelen = sbc_pack_frame(output, &priv->frame, output_len);
+    if (written)
+    {
+        *written = (int)framelen;//in 64 bit os, it should be okay.
+    }
+
+    sbc->len = framelen;
+    sbc->duration = (1000000 * priv->frame.subbands * priv->frame.blocks) / sbc->rate;
+
+    return samples * sbc->channels * 2;
+}
+
+
+void sbc_finish(sbc_t *sbc)
+{
+    if (!sbc)
+        return;
+
+    if (sbc->data)
+        free(sbc->data);
+
+
+    if (sbc->priv)
+    {
+        free(sbc->priv);
+    }
+    memset(sbc, 0, sizeof(sbc_t));
+}
diff --git a/rtkbt/addon/vr_bee1_hidraw_daemon/hidraw/msbc/msbc.h b/rtkbt/addon/vr_bee1_hidraw_daemon/hidraw/msbc/msbc.h
new file mode 100755
index 0000000..bd46bf6
--- /dev/null
+++ b/rtkbt/addon/vr_bee1_hidraw_daemon/hidraw/msbc/msbc.h
@@ -0,0 +1,79 @@
+/*
+ *
+ *  Bluetooth low-complexity, subband codec (SBC) library
+ *
+ *  Copyright (C) 2004-2006  Marcel Holtmann <marcel@holtmann.org>
+ *  Copyright (C) 2004-2005  Henryk Ploetz <henryk@ploetzli.ch>
+ *  Copyright (C) 2005-2006  Brad Midgley <bmidgley@xmission.com>
+ *
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Lesser General Public
+ *  License as published by the Free Software Foundation; either
+ *  version 2.1 of the License, or (at your option) any later version.
+ *
+ *  This library is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with this library; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+#ifndef __SBC_H
+#define __SBC_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+struct sbc_struct {
+    unsigned long flags;
+    unsigned short rate;
+    unsigned char channels;
+    unsigned char joint;
+    unsigned char blocks;
+    unsigned char subbands;
+    unsigned char bitpool;
+
+    void *data;
+    int size;
+    int len;
+
+    unsigned long duration;
+
+    void *priv;
+};
+
+typedef struct sbc_struct sbc_t;
+
+int sbc_init(sbc_t *sbc, unsigned long flags);
+
+int sbc_reinit(sbc_t *sbc, unsigned long flags);
+
+
+int sbc_encode(sbc_t *sbc,
+               void *input,
+               int input_len,
+               void *output,
+               int output_len,
+               int *written);
+
+int sbc_decode(sbc_t *sbc,
+               void *input,
+               int input_len,
+               void *output,
+               int output_len,
+               int *written);
+
+void sbc_finish(sbc_t *sbc);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __SBC_H */
diff --git a/rtkbt/addon/vr_bee1_hidraw_daemon/hidraw/msbc/msbc_math.h b/rtkbt/addon/vr_bee1_hidraw_daemon/hidraw/msbc/msbc_math.h
new file mode 100755
index 0000000..3ccadd8
--- /dev/null
+++ b/rtkbt/addon/vr_bee1_hidraw_daemon/hidraw/msbc/msbc_math.h
@@ -0,0 +1,70 @@
+/*
+ *
+ *  Bluetooth low-complexity, subband codec (SBC) library
+ *
+ *  Copyright (C) 2004-2006  Marcel Holtmann <marcel@holtmann.org>
+ *  Copyright (C) 2004-2005  Henryk Ploetz <henryk@ploetzli.ch>
+ *  Copyright (C) 2005-2006  Brad Midgley <bmidgley@xmission.com>
+ *
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Lesser General Public
+ *  License as published by the Free Software Foundation; either
+ *  version 2.1 of the License, or (at your option) any later version.
+ *
+ *  This library is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with this library; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+#define fabs(x) ((x) < 0 ? -(x) : (x))
+/* C does not provide an explicit arithmetic shift right but this will
+   always be correct and every compiler *should* generate optimal code */
+#define ASR(val, bits) ((-2 >> 1 == -1) ? \
+         ((int32_t)(val)) >> (bits) : ((int32_t) (val)) / (1 << (bits)))
+#define ASR_64(val, bits) ((-2 >> 1 == -1) ? \
+         ((long long)(val)) >> (bits) : ((long long) (val)) / (1 << (bits)))
+
+#define SCALE_PROTO4_TBL    15
+#define SCALE_ANA4_TBL      16
+#define SCALE_PROTO8_TBL    15
+#define SCALE_ANA8_TBL      16
+#define SCALE_SPROTO4_TBL   16
+#define SCALE_SPROTO8_TBL   16
+#define SCALE_NPROTO4_TBL   10
+#define SCALE_NPROTO8_TBL   12
+#define SCALE_SAMPLES       14
+#define SCALE4_STAGE1_BITS  10
+#define SCALE4_STAGE2_BITS  21
+#define SCALE4_STAGED1_BITS 18
+#define SCALE4_STAGED2_BITS 23
+#define SCALE8_STAGE1_BITS  8
+#define SCALE8_STAGE2_BITS  24
+#define SCALE8_STAGED1_BITS 18
+#define SCALE8_STAGED2_BITS 23
+
+typedef int     int32_t;
+typedef int32_t sbc_fixed_t;
+typedef long long sbc_extended_t;
+
+#define SCALE4_STAGE1(src)  ASR_64(src, SCALE4_STAGE1_BITS)
+#define SCALE4_STAGE2(src)  ASR_64(src, SCALE4_STAGE2_BITS)
+#define SCALE4_STAGED1(src) ASR_64(src, SCALE4_STAGED1_BITS)
+#define SCALE4_STAGED2(src) ASR_64(src, SCALE4_STAGED2_BITS)
+#define SCALE8_STAGE1(src)  ASR_64(src, SCALE8_STAGE1_BITS)
+#define SCALE8_STAGE2(src)  ASR_64(src, SCALE8_STAGE2_BITS)
+#define SCALE8_STAGED1(src) ASR_64(src, SCALE8_STAGED1_BITS)
+#define SCALE8_STAGED2(src) ASR_64(src, SCALE8_STAGED2_BITS)
+
+#define SBC_FIXED_0(val) { val = 0; }
+#define ADD(dst, src)    { dst += src; }
+#define SUB(dst, src)    { dst -= src; }
+#define MUL(dst, a, b)   { dst = (sbc_extended_t) (a) * (b); }
+#define MULA(dst, a, b)  { dst += (sbc_extended_t) (a) * (b); }
+#define DIV2(dst, src)   { dst = ASR(src, 1); }
diff --git a/rtkbt/addon/vr_bee1_hidraw_daemon/hidraw/msbc/msbc_tables.h b/rtkbt/addon/vr_bee1_hidraw_daemon/hidraw/msbc/msbc_tables.h
new file mode 100755
index 0000000..98e8e43
--- /dev/null
+++ b/rtkbt/addon/vr_bee1_hidraw_daemon/hidraw/msbc/msbc_tables.h
@@ -0,0 +1,169 @@
+/*
+ *
+ *  Bluetooth low-complexity, subband codec (SBC) library
+ *
+ *  Copyright (C) 2004-2006  Marcel Holtmann <marcel@holtmann.org>
+ *  Copyright (C) 2004-2005  Henryk Ploetz <henryk@ploetzli.ch>
+ *  Copyright (C) 2005-2006  Brad Midgley <bmidgley@xmission.com>
+ *
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Lesser General Public
+ *  License as published by the Free Software Foundation; either
+ *  version 2.1 of the License, or (at your option) any later version.
+ *
+ *  This library is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with this library; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+#include "msbc_math.h"
+
+/* A2DP specification: Appendix B, page 69 */
+static const int sbc_offset4[4][4] = {
+    { -1, 0, 0, 0 },
+    { -2, 0, 0, 1 },
+    { -2, 0, 0, 1 },
+    { -2, 0, 0, 1 }
+};
+
+/* A2DP specification: Appendix B, page 69 */
+static const int sbc_offset8[4][8] = {
+    { -2, 0, 0, 0, 0, 0, 0, 1 },
+    { -3, 0, 0, 0, 0, 0, 1, 2 },
+    { -4, 0, 0, 0, 0, 0, 1, 2 },
+    { -4, 0, 0, 0, 0, 0, 1, 2 }
+};
+
+#define SP4(val) ASR(val, SCALE_PROTO4_TBL)
+#define SA4(val) ASR(val, SCALE_ANA4_TBL)
+#define SP8(val) ASR(val, SCALE_PROTO8_TBL)
+#define SA8(val) ASR(val, SCALE_ANA8_TBL)
+#define SS4(val) ASR(val, SCALE_SPROTO4_TBL)
+#define SS8(val) ASR(val, SCALE_SPROTO8_TBL)
+#define SN4(val) ASR(val, SCALE_NPROTO4_TBL)
+#define SN8(val) ASR(val, SCALE_NPROTO8_TBL)
+
+static const int32_t _sbc_proto_4[20] = {
+    SP4(0x02cb3e8c), SP4(0x22b63dc0), SP4(0x002329cc), SP4(0x053b7548),
+    SP4(0x31eab940), SP4(0xec1f5e60), SP4(0xff3773a8), SP4(0x0061c5a7),
+    SP4(0x07646680), SP4(0x3f239480), SP4(0xf89f23a8), SP4(0x007a4737),
+    SP4(0x00b32807), SP4(0x083ddc80), SP4(0x4825e480), SP4(0x0191e578),
+    SP4(0x00ff11ca), SP4(0x00fb7991), SP4(0x069fdc58), SP4(0x4b584000)
+};
+
+static const int32_t _anamatrix4[4] = {
+    SA4(0x2d413cc0), SA4(0x3b20d780), SA4(0x40000000), SA4(0x187de2a0)
+};
+
+static const int32_t _sbc_proto_8[40] = {
+    SP8(0x02e5cd20), SP8(0x22d0c200), SP8(0x006bfe27), SP8(0x07808930),
+    SP8(0x3f1c8800), SP8(0xf8810d70), SP8(0x002cfdc6), SP8(0x055acf28),
+    SP8(0x31f566c0), SP8(0xebfe57e0), SP8(0xff27c437), SP8(0x001485cc),
+    SP8(0x041c6e58), SP8(0x2a7cfa80), SP8(0xe4c4a240), SP8(0xfe359e4c),
+    SP8(0x0048b1f8), SP8(0x0686ce30), SP8(0x38eec5c0), SP8(0xf2a1b9f0),
+    SP8(0xffe8904a), SP8(0x0095698a), SP8(0x0824a480), SP8(0x443b3c00),
+    SP8(0xfd7badc8), SP8(0x00d3e2d9), SP8(0x00c183d2), SP8(0x084e1950),
+    SP8(0x4810d800), SP8(0x017f43fe), SP8(0x01056dd8), SP8(0x00e9cb9f),
+    SP8(0x07d7d090), SP8(0x4a708980), SP8(0x0488fae8), SP8(0x0113bd20),
+    SP8(0x0107b1a8), SP8(0x069fb3c0), SP8(0x4b3db200), SP8(0x00763f48)
+};
+
+static const int32_t sbc_proto_4_40m0[] = {
+    SS4(0x00000000), SS4(0xffa6982f), SS4(0xfba93848), SS4(0x0456c7b8),
+    SS4(0x005967d1), SS4(0xfffb9ac7), SS4(0xff589157), SS4(0xf9c2a8d8),
+    SS4(0x027c1434), SS4(0x0019118b), SS4(0xfff3c74c), SS4(0xff137330),
+    SS4(0xf81b8d70), SS4(0x00ec1b8b), SS4(0xfff0b71a), SS4(0xffe99b00),
+    SS4(0xfef84470), SS4(0xf6fb4370), SS4(0xffcdc351), SS4(0xffe01dc7)
+};
+
+static const int32_t sbc_proto_4_40m1[] = {
+    SS4(0xffe090ce), SS4(0xff2c0475), SS4(0xf694f800), SS4(0xff2c0475),
+    SS4(0xffe090ce), SS4(0xffe01dc7), SS4(0xffcdc351), SS4(0xf6fb4370),
+    SS4(0xfef84470), SS4(0xffe99b00), SS4(0xfff0b71a), SS4(0x00ec1b8b),
+    SS4(0xf81b8d70), SS4(0xff137330), SS4(0xfff3c74c), SS4(0x0019118b),
+    SS4(0x027c1434), SS4(0xf9c2a8d8), SS4(0xff589157), SS4(0xfffb9ac7)
+};
+
+static const int32_t sbc_proto_8_80m0[] = {
+    SS8(0x00000000), SS8(0xfe8d1970), SS8(0xee979f00), SS8(0x11686100),
+    SS8(0x0172e690), SS8(0xfff5bd1a), SS8(0xfdf1c8d4), SS8(0xeac182c0),
+    SS8(0x0d9daee0), SS8(0x00e530da), SS8(0xffe9811d), SS8(0xfd52986c),
+    SS8(0xe7054ca0), SS8(0x0a00d410), SS8(0x006c1de4), SS8(0xffdba705),
+    SS8(0xfcbc98e8), SS8(0xe3889d20), SS8(0x06af2308), SS8(0x000bb7db),
+    SS8(0xffca00ed), SS8(0xfc3fbb68), SS8(0xe071bc00), SS8(0x03bf7948),
+    SS8(0xffc4e05c), SS8(0xffb54b3b), SS8(0xfbedadc0), SS8(0xdde26200),
+    SS8(0x0142291c), SS8(0xff960e94), SS8(0xff9f3e17), SS8(0xfbd8f358),
+    SS8(0xdbf79400), SS8(0xff405e01), SS8(0xff7d4914), SS8(0xff8b1a31),
+    SS8(0xfc1417b8), SS8(0xdac7bb40), SS8(0xfdbb828c), SS8(0xff762170)
+};
+
+static const int32_t sbc_proto_8_80m1[] = {
+    SS8(0xff7c272c), SS8(0xfcb02620), SS8(0xda612700), SS8(0xfcb02620),
+    SS8(0xff7c272c), SS8(0xff762170), SS8(0xfdbb828c), SS8(0xdac7bb40),
+    SS8(0xfc1417b8), SS8(0xff8b1a31), SS8(0xff7d4914), SS8(0xff405e01),
+    SS8(0xdbf79400), SS8(0xfbd8f358), SS8(0xff9f3e17), SS8(0xff960e94),
+    SS8(0x0142291c), SS8(0xdde26200), SS8(0xfbedadc0), SS8(0xffb54b3b),
+    SS8(0xffc4e05c), SS8(0x03bf7948), SS8(0xe071bc00), SS8(0xfc3fbb68),
+    SS8(0xffca00ed), SS8(0x000bb7db), SS8(0x06af2308), SS8(0xe3889d20),
+    SS8(0xfcbc98e8), SS8(0xffdba705), SS8(0x006c1de4), SS8(0x0a00d410),
+    SS8(0xe7054ca0), SS8(0xfd52986c), SS8(0xffe9811d), SS8(0x00e530da),
+    SS8(0x0d9daee0), SS8(0xeac182c0), SS8(0xfdf1c8d4), SS8(0xfff5bd1a)
+};
+
+static const int32_t _anamatrix8[8] = {
+    SA8(0x3b20d780), SA8(0x187de2a0), SA8(0x3ec52f80), SA8(0x3536cc40),
+    SA8(0x238e7680), SA8(0x0c7c5c20), SA8(0x2d413cc0), SA8(0x40000000)
+};
+
+static const int32_t synmatrix4[8][4] = {
+    { SN4(0x05a82798), SN4(0xfa57d868), SN4(0xfa57d868), SN4(0x05a82798) },
+    { SN4(0x030fbc54), SN4(0xf89be510), SN4(0x07641af0), SN4(0xfcf043ac) },
+    { SN4(0x00000000), SN4(0x00000000), SN4(0x00000000), SN4(0x00000000) },
+    { SN4(0xfcf043ac), SN4(0x07641af0), SN4(0xf89be510), SN4(0x030fbc54) },
+    { SN4(0xfa57d868), SN4(0x05a82798), SN4(0x05a82798), SN4(0xfa57d868) },
+    { SN4(0xf89be510), SN4(0xfcf043ac), SN4(0x030fbc54), SN4(0x07641af0) },
+    { SN4(0xf8000000), SN4(0xf8000000), SN4(0xf8000000), SN4(0xf8000000) },
+    { SN4(0xf89be510), SN4(0xfcf043ac), SN4(0x030fbc54), SN4(0x07641af0) }
+};
+
+static const int32_t synmatrix8[16][8] = {
+    { SN8(0x05a82798), SN8(0xfa57d868), SN8(0xfa57d868), SN8(0x05a82798),
+      SN8(0x05a82798), SN8(0xfa57d868), SN8(0xfa57d868), SN8(0x05a82798) },
+    { SN8(0x0471ced0), SN8(0xf8275a10), SN8(0x018f8b84), SN8(0x06a6d988),
+      SN8(0xf9592678), SN8(0xfe70747c), SN8(0x07d8a5f0), SN8(0xfb8e3130) },
+    { SN8(0x030fbc54), SN8(0xf89be510), SN8(0x07641af0), SN8(0xfcf043ac),
+      SN8(0xfcf043ac), SN8(0x07641af0), SN8(0xf89be510), SN8(0x030fbc54) },
+    { SN8(0x018f8b84), SN8(0xfb8e3130), SN8(0x06a6d988), SN8(0xf8275a10),
+      SN8(0x07d8a5f0), SN8(0xf9592678), SN8(0x0471ced0), SN8(0xfe70747c) },
+    { SN8(0x00000000), SN8(0x00000000), SN8(0x00000000), SN8(0x00000000),
+      SN8(0x00000000), SN8(0x00000000), SN8(0x00000000), SN8(0x00000000) },
+    { SN8(0xfe70747c), SN8(0x0471ced0), SN8(0xf9592678), SN8(0x07d8a5f0),
+      SN8(0xf8275a10), SN8(0x06a6d988), SN8(0xfb8e3130), SN8(0x018f8b84) },
+    { SN8(0xfcf043ac), SN8(0x07641af0), SN8(0xf89be510), SN8(0x030fbc54),
+      SN8(0x030fbc54), SN8(0xf89be510), SN8(0x07641af0), SN8(0xfcf043ac) },
+    { SN8(0xfb8e3130), SN8(0x07d8a5f0), SN8(0xfe70747c), SN8(0xf9592678),
+      SN8(0x06a6d988), SN8(0x018f8b84), SN8(0xf8275a10), SN8(0x0471ced0) },
+    { SN8(0xfa57d868), SN8(0x05a82798), SN8(0x05a82798), SN8(0xfa57d868),
+      SN8(0xfa57d868), SN8(0x05a82798), SN8(0x05a82798), SN8(0xfa57d868) },
+    { SN8(0xf9592678), SN8(0x018f8b84), SN8(0x07d8a5f0), SN8(0x0471ced0),
+      SN8(0xfb8e3130), SN8(0xf8275a10), SN8(0xfe70747c), SN8(0x06a6d988) },
+    { SN8(0xf89be510), SN8(0xfcf043ac), SN8(0x030fbc54), SN8(0x07641af0),
+      SN8(0x07641af0), SN8(0x030fbc54), SN8(0xfcf043ac), SN8(0xf89be510) },
+    { SN8(0xf8275a10), SN8(0xf9592678), SN8(0xfb8e3130), SN8(0xfe70747c),
+      SN8(0x018f8b84), SN8(0x0471ced0), SN8(0x06a6d988), SN8(0x07d8a5f0) },
+    { SN8(0xf8000000), SN8(0xf8000000), SN8(0xf8000000), SN8(0xf8000000),
+      SN8(0xf8000000), SN8(0xf8000000), SN8(0xf8000000), SN8(0xf8000000) },
+    { SN8(0xf8275a10), SN8(0xf9592678), SN8(0xfb8e3130), SN8(0xfe70747c),
+      SN8(0x018f8b84), SN8(0x0471ced0), SN8(0x06a6d988), SN8(0x07d8a5f0) },
+    { SN8(0xf89be510), SN8(0xfcf043ac), SN8(0x030fbc54), SN8(0x07641af0),
+      SN8(0x07641af0), SN8(0x030fbc54), SN8(0xfcf043ac), SN8(0xf89be510) },
+    { SN8(0xf9592678), SN8(0x018f8b84), SN8(0x07d8a5f0), SN8(0x0471ced0),
+      SN8(0xfb8e3130), SN8(0xf8275a10), SN8(0xfe70747c), SN8(0x06a6d988) }
+};
diff --git a/rtkbt/addon/vr_bee1_hidraw_daemon/hidraw/sbc/sbc.h b/rtkbt/addon/vr_bee1_hidraw_daemon/hidraw/sbc/sbc.h
new file mode 100755
index 0000000..af8021c
--- /dev/null
+++ b/rtkbt/addon/vr_bee1_hidraw_daemon/hidraw/sbc/sbc.h
@@ -0,0 +1,85 @@
+#ifndef _SBC_H_
+#define _SBC_H_
+
+/* defines */
+#define SBC_SUCCESS            0
+#define SBC_NOT_ENOUGH_DATA   -1
+#define SBC_BUFFER_TOO_SMALL  -2
+#define SBC_NO_SYNCBYTE       -3
+#define SBC_CHECKSUM_ERROR    -4
+
+#define SBC_SYNCBYTE           0x9c
+#define SBC_MAX_SUBBANDS       8
+#define SBC_MAX_CHANNELS       2
+#define SBC_TERMINATOR        -1
+
+/* structs, typedefs */
+#define SBC_FREQU16000   0x0
+#define SBC_FREQU32000   0x1
+#define SBC_FREQU44100   0x2
+#define SBC_FREQU48000   0x3
+typedef unsigned short TSBCSamplingFrequency;
+
+#define SBC_BLOCKS4    0x0
+#define SBC_BLOCKS8    0x1
+#define SBC_BLOCKS12   0x2
+#define SBC_BLOCKS16   0x3
+typedef unsigned short TSBCBlockNumber;
+
+#define SBC_MODE_MONO     0x0
+#define SBC_MODE_DUAL     0x1
+#define SBC_MODE_STEREO   0x2
+#define SBC_MODE_JOINT    0x3
+typedef unsigned short TSBCChannelMode;
+
+#define SBC_ALLOCLOUDNESS  0x0
+#define SBC_ALLOCSNR       0x1
+typedef unsigned short TSBCAllocMethod;
+
+#define SBC_SUBBANDS4  0x0
+#define SBC_SUBBANDS8  0x1
+typedef unsigned short TSBCSubbandNumber;
+
+typedef struct tagSBCParams
+{
+	TSBCSamplingFrequency samplingFrequency;
+	TSBCBlockNumber blockNumber;
+	TSBCChannelMode channelMode;
+	TSBCAllocMethod allocMethod;
+	TSBCSubbandNumber subbandNumber;
+	unsigned char bitpool;
+} TSBCParams;
+
+typedef struct taglist TList;
+
+struct taglist
+ {
+  TList  *pNext;          /* next/first element    */
+  TList  *pPrevious;      /* previous/last element */
+ };
+
+typedef TList * PList;
+#define LIST_IS_EMPTY(pList)    ((pList)->pNext == pList)
+#define LIST_QUEUE_OUT(pList)   (pList)->pNext; listRemove((pList)->pNext)
+ 
+void listInit  ( PList pList );
+void listInsert( PList pElement, PList pDestinationList );
+void listRemove( PList pElement );
+void listMove  ( PList pElement, PList pDestinationList );
+int  listElementCount( PList pList );
+
+ 
+/* public sbc interface */
+void sbcInitEncoder(void); /* initializes internal buffers */
+int sbcEncode(unsigned char* inputBuffer, int inputSize, TSBCParams* params, unsigned char* outputBuffer, int* pOutputSize);
+/* returns number of processed input bytes; *pOutputSize contains number of output bytes */
+/* or required output buffer size */
+
+void sbcInitDecoder(void); /* initializes internal buffers */
+int sbcDecode(unsigned char* pInputBuffer, int inputSize, unsigned char* pOutputBuffer, int* pOutputSize);
+/* returns number of processed input bytes; *pOutputSize contains number of output bytes */
+/* or required output buffer size */
+int sbcGetParams(unsigned char* pInputBuffer, int inputSize, TSBCParams* pParams);
+/* fill TSBCParams with data or first SBC frame in pInputBuffer */
+
+#endif
diff --git a/rtkbt/addon/vr_bee1_hidraw_daemon/hidraw/sbc/sbcdec.c b/rtkbt/addon/vr_bee1_hidraw_daemon/hidraw/sbc/sbcdec.c
new file mode 100755
index 0000000..2c49690
--- /dev/null
+++ b/rtkbt/addon/vr_bee1_hidraw_daemon/hidraw/sbc/sbcdec.c
@@ -0,0 +1,1279 @@
+/******************************************************
+* Project      : SBC
+* FileName     : $RCSfile: sbcdec.c,v $
+* Created      : April 2005
+* Version      : $Revision: 1.10 $
+* Last access  : $Date: 2005/10/27 06:06:23 $
+* Archive      : $Source: /var/lib/cvs/sw/src/codec/sbc/sbcdec.c,v $
+* Copyright    : (C) Stollmann E+V GmbH 2005
+* Author       : Klaus Muehle (km@stollmann.de)
+* Compiler     : ANSI C compatible
+* Environment  : Windows NT 2000 user mode
+* Contents     : implementation of SBC decoder
+* Note         : 
+* History      : 
+*              : $Log: sbcdec.c,v $
+*              : Revision 1.10  2005/10/27 06:06:23  lv
+*              : fixed high level distortion problems
+*              : various optimizations
+*              : added sbcGetParams
+*              :
+*              : Revision 1.9  2005/10/26 08:06:40  jz
+*              : moved constant data to "const" memory
+*              :
+*              : Revision 1.8  2005/07/28 10:14:54  jz
+*              : Avoid castings
+*              :
+*              : Revision 1.7  2005/06/01 06:00:28  lv
+*              : integrated internal headers
+*              : fixed joint decoding bug
+*              :
+*              : Revision 1.6  2005/05/12 09:27:19  lv
+*              : eliminated bracket warning
+*              :
+*              : Revision 1.5  2005/05/12 08:05:32  lv
+*              : improved precision by using GUARD_HALFBIT
+*              : non optimized fix for JOint distortion
+*              :
+*              : Revision 1.4  2005/04/27 07:58:17  lv
+*              : changed internal sample representation from short to int
+*              :
+*              : Revision 1.3  2005/04/26 08:37:11  lv
+*              : formatting
+*              :
+*              : Revision 1.2  2005/04/26 08:21:06  lv
+*              : added crc creation
+*              :
+*              : Revision 1.1  2005/04/21 09:52:28  lv
+*              : first checkin
+*              :
+*******************************************************
+* sbcdec.c
+******************************************************/
+
+#if 1
+
+#include <string.h>
+#include <stdio.h>
+#include "sbc.h"
+
+
+
+/* arm compiler */
+#ifdef __arm
+# define INLINE __inline
+# define VALUE_IN_REGS __value_in_regs
+# define PURE
+#else
+# define INLINE
+# define VALUE_IN_REGS
+# define PURE
+#endif
+
+/* macros and types */
+#if !defined min
+#define min(a,b)    (((a) < (b)) ? (a) : (b))
+#endif
+
+#define limit(a) \
+  if (a > 1073709056)\
+  a = 1073709056;\
+  if (a < -1073741824)\
+  a = -1073741824;
+/* limit to 32767 << GUARD resp.  -32768 << GUARD */
+
+/* sbc defines */
+#define GUARD           15
+#define GUARD_MINUS_2   13
+#define GUARD_HALFBIT   16384   /* must equal (1 << (GUARD - 1)) */ 
+
+
+/* structs, typedefs */
+typedef struct tagSBCData  
+{
+  unsigned channel_mode;
+  unsigned allocation_method;
+  unsigned nrof_subbands;
+  unsigned nrof_blocks;
+  unsigned nrof_channels;
+  unsigned sampling_frequency; /* 0..3 */
+  int bitpool;
+  unsigned join;
+} TSBCData;
+
+typedef struct tagSampleData
+{
+  int bits;
+  int scale_factor;
+  int sb_sample;
+#if defined F_SBC_DEBUG_FILE
+  int qs;
+#endif
+} TSampleData;
+
+/* global variables */
+static TSBCData SBCData;
+static TSampleData sampleData[SBC_MAX_CHANNELS + 1][SBC_MAX_SUBBANDS]; /* one additional line for terminator  */
+static int v[2][200]; /* size 200 instead of 160 for optimized pointer management  */
+
+/* global constants */
+static const unsigned blockNumbers[4] = {4,  8,  12,  16};
+static const unsigned subbandNumbers[2]   = {4,  8};
+static const int offset4[4][4] = {{-1, 0, 0, 0}, {-2, 0, 0, 1}, {-2, 0, 0, 1}, {-2, 0, 0, 1}};
+static const int offset8[4][8] = {{-2, 0, 0, 0, 0, 0, 0, 1}, {-3, 0, 0, 0, 0, 0, 1, 2}, {-4, 0, 0, 0, 0, 0, 1, 2}, {-4, 0, 0, 0, 0, 0, 1, 2}};
+
+static const int divTable[32] = 
+{
+  0, 65536, 43691, 37449, 34953, 33825, 33288, 33026,
+  32897, 32832, 32800, 32784, 32776, 32772, 32770, 32769,
+  32769, 32768, 32768, 32768, 32768, 32768, 32768, 32768,
+  32768, 32768, 32768, 32768, 32768, 32768, 32768, 32768,
+};
+
+static const signed char matrixingTable[20] = 
+{
+ 3, 2, 5, 4, 7, 6, 9, 8, 11, 10, 13, 12, 15, 14, 17, 16, 19, 18, 1, 0
+};
+
+static const int d4[40] = 
+{
+  0, -70, -196, -358, -503, -510, -245, 401,
+  -1430, -2679, -3785, -4220, -3392, -804, 3778, 10177,
+  -17772, -25557, -32327, -36940, -38576, -36940, -32327, -25557,
+  17772, 10177, 3778, -804, -3392, -4220, -3785, -2679,
+  1430, 401, -245, -510, -503, -358, -196, -70,
+};
+
+static const int d8[80] = 
+{
+  0, -41, -90, -145, -527, -551, -523, -424,
+  -1484, -2105, -2742, -3342, -3391, -2322, -767, 1289,
+  -17826, -21754, -25579, -29150, -38523, -38113, -36898, -34934,
+  17826, 13943, 10243, 6845, -3391, -4016, -4252, -4169,
+  1484, 917, 432, 47, -527, -468, -387, -299,
+  -216, -299, -387, -468, -236, 47, 432, 917,
+  -3841, -4169, -4252, -4016, 3838, 6845, 10243, 13943,
+  -32313, -34934, -36898, -38113, -32313, -29150, -25579, -21754,
+  3838, 1289, -767, -2322, -3841, -3342, -2742, -2105,
+  -236, -424, -523, -551, -216, -145, -90, -41,
+};
+
+static const int nik4[4][8] = 
+{
+  23170, 12540, 0, -12540, -23170, -30274, -32768, -30274,
+  -23170, -30274, 0, 30274, 23170, -12540, -32768, -12540,
+  -23170, 30274, 0, -30274, 23170, 12540, -32768, 12540,
+  23170, -12540, 0, 12540, -23170, 30274, -32768, 30274,
+};
+
+static const int nik8[8][16] =
+{
+  23170, 18205, 12540, 6393, 0, -6393, -12540, -18205, -23170, -32138, -30274, -18205, 0, 18205, 30274, 32138,
+  -23170, 6393, 30274, 27246, 0, -27246, -30274, -6393, 23170, 27246, -12540, -32138, 0, 32138, 12540, -27246,
+  23170, -27246, -12540, 32138, 0, -32138, 12540, 27246, -23170, -6393, 30274, -27246, 0, 27246, -30274, 6393,
+  -23170, 32138, -30274, 18205, 0, -18205, 30274, -32138, 23170, -18205, 12540, -6393, 0, 6393, -12540, 18205,
+  -23170, -27246, -30274, -32138, -32768, -32138, -30274, -27246, 23170, 6393, -12540, -27246, -32768, -27246, -12540, 6393,
+  23170, 32138, 12540, -18205, -32768, -18205, 12540, 32138, -23170, 18205, 30274, -6393, -32768, -6393, 30274, 18205,
+  -23170, -18205, 30274, 6393, -32768, 6393, 30274, -18205, 23170, -32138, 12540, 18205, -32768, 18205, 12540, -32138,
+  23170, -6393, -12540, 27246, -32768, 27246, -12540, -6393, -23170, 27246, -30274, 32138, -32768, 32138, -30274, 27246,
+};
+
+static const unsigned char crcTable[256] = 
+{
+  0x00, 0x1D, 0x3A, 0x27, 0x74, 0x69, 0x4E, 0x53,
+  0xE8, 0xF5, 0xD2, 0xCF, 0x9C, 0x81, 0xA6, 0xBB,
+  0xCD, 0xD0, 0xF7, 0xEA, 0xB9, 0xA4, 0x83, 0x9E,
+  0x25, 0x38, 0x1F, 0x02, 0x51, 0x4C, 0x6B, 0x76,
+  0x87, 0x9A, 0xBD, 0xA0, 0xF3, 0xEE, 0xC9, 0xD4,
+  0x6F, 0x72, 0x55, 0x48, 0x1B, 0x06, 0x21, 0x3C,
+  0x4A, 0x57, 0x70, 0x6D, 0x3E, 0x23, 0x04, 0x19,
+  0xA2, 0xBF, 0x98, 0x85, 0xD6, 0xCB, 0xEC, 0xF1,
+  0x13, 0x0E, 0x29, 0x34, 0x67, 0x7A, 0x5D, 0x40,
+  0xFB, 0xE6, 0xC1, 0xDC, 0x8F, 0x92, 0xB5, 0xA8,
+  0xDE, 0xC3, 0xE4, 0xF9, 0xAA, 0xB7, 0x90, 0x8D,
+  0x36, 0x2B, 0x0C, 0x11, 0x42, 0x5F, 0x78, 0x65,
+  0x94, 0x89, 0xAE, 0xB3, 0xE0, 0xFD, 0xDA, 0xC7,
+  0x7C, 0x61, 0x46, 0x5B, 0x08, 0x15, 0x32, 0x2F,
+  0x59, 0x44, 0x63, 0x7E, 0x2D, 0x30, 0x17, 0x0A,
+  0xB1, 0xAC, 0x8B, 0x96, 0xC5, 0xD8, 0xFF, 0xE2,
+  0x26, 0x3B, 0x1C, 0x01, 0x52, 0x4F, 0x68, 0x75,
+  0xCE, 0xD3, 0xF4, 0xE9, 0xBA, 0xA7, 0x80, 0x9D,
+  0xEB, 0xF6, 0xD1, 0xCC, 0x9F, 0x82, 0xA5, 0xB8,
+  0x03, 0x1E, 0x39, 0x24, 0x77, 0x6A, 0x4D, 0x50,
+  0xA1, 0xBC, 0x9B, 0x86, 0xD5, 0xC8, 0xEF, 0xF2,
+  0x49, 0x54, 0x73, 0x6E, 0x3D, 0x20, 0x07, 0x1A,
+  0x6C, 0x71, 0x56, 0x4B, 0x18, 0x05, 0x22, 0x3F,
+  0x84, 0x99, 0xBE, 0xA3, 0xF0, 0xED, 0xCA, 0xD7,
+  0x35, 0x28, 0x0F, 0x12, 0x41, 0x5C, 0x7B, 0x66,
+  0xDD, 0xC0, 0xE7, 0xFA, 0xA9, 0xB4, 0x93, 0x8E,
+  0xF8, 0xE5, 0xC2, 0xDF, 0x8C, 0x91, 0xB6, 0xAB,
+  0x10, 0x0D, 0x2A, 0x37, 0x64, 0x79, 0x5E, 0x43,
+  0xB2, 0xAF, 0x88, 0x95, 0xC6, 0xDB, 0xFC, 0xE1,
+  0x5A, 0x47, 0x60, 0x7D, 0x2E, 0x33, 0x14, 0x09,
+  0x7F, 0x62, 0x45, 0x58, 0x0B, 0x16, 0x31, 0x2C,
+  0x97, 0x8A, 0xAD, 0xB0, 0xE3, 0xFE, 0xD9, 0xC4
+};
+
+
+/* internal functions declarations */
+static void initVTab(int* v);
+
+static void processMatrixing4(const int* fnik, int* s, int* v, int iter);
+static void calcAudioSamples4(int* v, const int* d4, short* x, int mono, int channels);
+static void processMatrixing8(const int* nik, int* s, int* v, int iter);
+static void calcAudioSamples8(int* v, const int* d8, short* x, int iter, int mono, int channels);
+
+static int checkCRC(unsigned char* pInput);
+
+static void computeBits(void);
+static void computeSlicesInPoolStereo( int max_bitneed, int bitneed[SBC_MAX_CHANNELS][SBC_MAX_SUBBANDS]);
+
+/**
+* @brief		init sbc decoder
+* 
+* @param	
+*
+* @return
+*
+*/
+void sbcInitDecoder(void)
+{
+	memset(&SBCData, 0, sizeof(SBCData));
+	memset(&v[0][0], 0, 2*200*4);
+	initVTab(v[0]);
+	initVTab(v[1]);
+}
+
+/**
+* @brief  sbc decode
+* 
+* @param  pInputBuffer
+* @param  inputSize
+* @param  pOutputBuffer
+* @param  pOutputSize
+*
+* @return  
+*
+*/
+int sbcDecode(unsigned char* pInputBuffer, int inputSize, unsigned char* pOutputBuffer, int* pOutputSize)
+{
+	unsigned ch;
+	unsigned blk;
+	unsigned int c;
+	int frameSize;
+	TSBCData* pSBCData = &SBCData;
+	unsigned char* pIn = pInputBuffer;
+	unsigned char* pOut = pOutputBuffer;
+
+	/* read header */
+	c = *pIn++;
+	if (c != SBC_SYNCBYTE)
+	{
+		*pOutputSize = 0;
+		return SBC_NO_SYNCBYTE;
+	}
+
+	c = *pIn++;
+	pSBCData->sampling_frequency = (c >> 6) & 0x03;
+	pSBCData->nrof_blocks = blockNumbers[(c >> 4) & 0x03];
+	pSBCData->channel_mode = (c >> 2) & 0x03;
+	pSBCData->allocation_method = (c >> 1) & 0x01;
+	pSBCData->nrof_subbands = subbandNumbers[(c >> 0) & 0x01];
+	pSBCData->bitpool = *pIn++;
+	*pIn++; /* crc  */
+	pSBCData->nrof_channels = pSBCData->channel_mode == SBC_MODE_MONO ? 1 : 2;
+
+	/* check for sufficient input data */
+	{
+		int sb, bb;
+		frameSize = 4;
+		sb = pSBCData->nrof_subbands;
+		bb = pSBCData->nrof_blocks * pSBCData->bitpool;
+
+		switch (pSBCData->channel_mode)
+		{
+		case SBC_MODE_MONO:
+			frameSize += (sb >>1 ) + (bb >> 3); 
+			/* (bb)>>3 must be rounded towards plus infinity */
+			if (bb & 0x7)
+				frameSize++;
+			break;
+		case SBC_MODE_DUAL:
+			frameSize += sb + (bb >> 2); 
+			break;
+		case SBC_MODE_STEREO:
+			frameSize += sb + (bb >> 3); 
+			/* (bb)>>3 must be rounded towards plus infinity */
+			if (bb & 0x7)
+				frameSize++;
+			break;
+		case SBC_MODE_JOINT:
+			frameSize += sb + ((sb + bb) >> 3); 
+			/* (sb + bb)>>3 must be rounded towards plus infinity */
+			if ((sb + bb) & 0x7)
+				frameSize++;
+			break;
+		}
+
+		if (inputSize < frameSize)
+			return SBC_NOT_ENOUGH_DATA;
+	}
+
+	/* check for sufficient output buffer size */ 
+	{
+		int ns = pSBCData->nrof_channels * pSBCData->nrof_blocks * pSBCData->nrof_subbands;
+
+		if (*pOutputSize < ns * 2)
+		{
+			*pOutputSize = ns;
+			return SBC_BUFFER_TOO_SMALL;
+		}
+	}
+
+	/* check checksum */
+	if (checkCRC(pInputBuffer) != 0)
+	{
+		*pOutputSize = 0;
+		return SBC_CHECKSUM_ERROR;
+	}
+
+	if (pSBCData->channel_mode == SBC_MODE_JOINT)
+	{
+		pSBCData->join = *pIn++;
+		/* filtering of join bits is not required if appropriate iteration is applied  */
+		if (pSBCData->nrof_subbands == 4)
+		{
+			pSBCData->join &= 0xe0;
+		}
+		else
+		{
+			pSBCData->join &= 0xfe; 
+		}
+	}
+
+	/* read scale factors */
+	{
+	TSampleData* pd = &sampleData[0][0];
+	if (pSBCData->nrof_subbands == 4)
+	{
+	  if (pSBCData->channel_mode == SBC_MODE_JOINT)
+	  {
+	    /* data pointer adjustment required due to just 4 join bits in header  */
+	    for (ch = 2; ch > 0; ch--)
+	    {
+	      c = pIn[-1];
+	      pd[0].scale_factor = c & 0x0f;
+	      c = pIn[0];
+	      pd[1].scale_factor = c >> 4;
+	      pd[2].scale_factor = c & 0x0f;
+	      c = pIn[1];
+	      pd[3].scale_factor = c >> 4;
+	      pd  += 8;
+	      pIn += 2;
+	    }
+	  } /* if joint */
+	  else
+	  {
+	    for (ch = pSBCData->nrof_channels; ch > 0; ch--)
+	    {
+	      c = pIn[0];
+	      pd[0].scale_factor = c >> 4;
+	      pd[1].scale_factor = c & 0x0f;
+	      c = pIn[1];
+	      pd[2].scale_factor = c >> 4;
+	      pd[3].scale_factor = c & 0x0f;
+	      pd  += 8;
+	      pIn += 2;
+	    }
+	  }
+	} /* if 4 subbands */
+	else
+	{
+	  for (ch = pSBCData->nrof_channels; ch > 0; ch--)
+	  {
+	    c = pIn[0];
+	    pd[0].scale_factor = c >> 4;
+	    pd[1].scale_factor = c & 0x0f;
+	    c = pIn[1];
+	    pd[2].scale_factor = c >> 4;
+	    pd[3].scale_factor = c & 0x0f;
+	    c = pIn[2];
+	    pd[4].scale_factor = c >> 4;
+	    pd[5].scale_factor = c & 0x0f;
+	    c = pIn[3];
+	    pd[6].scale_factor = c >> 4;
+	    pd[7].scale_factor = c & 0x0f;
+	    pd  += 8;
+	    pIn += 4;
+	  }
+	}
+	}
+
+	computeBits();
+
+	{
+	int nrof_samples = pSBCData->nrof_channels * pSBCData->nrof_subbands;
+	TSampleData* pd = &sampleData[0][0];
+	int bits;
+	unsigned int acc = 0;
+	int resBits = 0;
+	int sb = 0;
+
+	if (pSBCData->nrof_subbands == 4)
+	{
+	  if (pSBCData->channel_mode == SBC_MODE_JOINT)
+	  {
+	    /* data pointer adjustment required due to just 4 join bits in header  */
+	    resBits = 4;
+	    acc = pIn[-1] & 0x0f;
+	  }
+	}
+
+	if (pSBCData->nrof_channels == 2)
+	{
+	  if (pSBCData->nrof_subbands == 4)
+	  {
+	    /* move TSampleData structs into one row within sampleData array */
+	    memcpy(&pd[4], &pd[8], 4 * sizeof(TSampleData));
+	  }
+	}
+
+	/* set terminator */
+	pd[nrof_samples].bits = SBC_TERMINATOR; /* terminator cannot be 1 because legal bit lengths of 1 may occur ! */
+
+	/* reconstruct frequency subband samples */
+	for (blk = pSBCData->nrof_blocks; blk > 0; blk--)
+	{
+	  pd = &sampleData[0][0];
+	  for (;;)
+	  {
+	    /* advantages of this loop optimizing:
+	    - testing only done if bits != 0, i.e. for less than half of the iterations
+	    - no updating of a loop variable
+	    - no use of a register
+	    - no entry test */
+	    if ((bits = (*pd++).bits) != 0)
+	    {
+	      int qs;
+	      int msk;
+	      /* break on terminator */
+	      if (bits < 0)  /* arm assembler optimization; saves 3 cycles compared to bits == SBC_TERMINATOR ! */
+	        break;
+	      while (bits > resBits)
+	      {
+	        /* load 16 new bits into accumulator */
+	        acc <<= 16;
+	        acc |= *pIn++ << 8;
+	        acc |= *pIn++;
+	        resBits += 16;
+	      }
+	      resBits -= bits;
+	      msk = (1 << bits) - 1;
+	      qs = ((acc >> resBits) & msk);
+#if defined F_SBC_DEBUG_FILE
+	      pd[-1].qs = qs;
+#endif
+	      /* use value precomputed with divTable; this leads to a value guarded by GUARD + bits - scale_factor - 2 */
+	      /* (msk >> 1) is a short form of (1 << (bits - ) - 1) */
+	      pd[-1].sb_sample = ((qs - (msk >> 1)) * divTable[bits]) >> (GUARD_MINUS_2 + pd[-1].bits - pd[-1].scale_factor);
+	      if (pd[-1].sb_sample < 0)
+	        pd[-1].sb_sample++;
+
+	    } /* if bits != 0 */
+	    else
+	    {
+#if defined F_SBC_DEBUG_FILE
+	      pd[-1].qs = 0;
+#endif
+	      pd[-1].sb_sample = 0;
+	    }
+	  } /* for samples */
+
+	  /* decode joint samples */
+	  if (pSBCData->channel_mode == SBC_MODE_JOINT)
+	  {
+	    int nsb;
+	    pd = &sampleData[0][0];
+	    nsb = pSBCData->nrof_subbands;
+	    for (sb = nsb - 2; sb >= 0; sb--)
+	    {
+	      if (pSBCData->join & (0x80 >> sb))
+	      {
+	        int sbR = sb + nsb;
+	        int temp = pd[sb].sb_sample;
+	        pd[sb].sb_sample = temp + pd[sbR].sb_sample;
+	        pd[sbR].sb_sample = temp - pd[sbR].sb_sample;
+	      } /* if subband joint*/
+	    } /* for sb */
+	  } /* if joint */
+
+	  /* reconstruct audio samples */
+	  {
+	    static int offset = 0;
+	    int* pv;
+
+	    if (offset <= 0)
+	      offset = 180;
+	    else
+	      offset -= 20;
+
+	    pv = &v[0][0] + offset;
+
+	    if (pSBCData->nrof_subbands == 4)
+	    {
+	      processMatrixing4( &nik4[0][0], &sampleData[0][0].sb_sample, pv, pSBCData->nrof_channels);
+	      calcAudioSamples4(pv, d4, (short*) pOut, pSBCData->channel_mode == SBC_MODE_MONO, pSBCData->nrof_channels);
+	    }
+	    else
+	    {
+	      processMatrixing8( &nik8[0][0], &sampleData[0][0].sb_sample, pv, pSBCData->nrof_channels);
+	      calcAudioSamples8(pv, d8, (short*) pOut, 2, pSBCData->channel_mode == SBC_MODE_MONO, pSBCData->nrof_channels);
+	    } /* if 4 subbands */
+
+	    pOut += 2 * nrof_samples;
+
+#if defined F_SBC_DEBUG_FILE
+	    {
+	      int sb, nsb;
+	      short* pAudio;
+	      pAudio = (short*) pOut;
+	      nsb = pSBCData->nrof_subbands;
+	      pd = &sampleData[0][0];
+	      for (sb = 0; sb < nsb; sb++)
+	      {
+	        printf("%d, %d, %u, %d, %d\n",
+	          pd[sb].bits, pd[sb].scale_factor, pd[sb].qs, pd[sb].sb_sample, pAudio[sb * 2]);
+	        printf("%d, %d, %u, %d, %d\n",
+	          pd[sb+8].bits, pd[sb+nsb].scale_factor, pd[sb+nsb].qs, pd[sb+nsb].sb_sample, pAudio[sb * 2 + 1]);
+	      }  
+	    }
+#endif
+
+	  }
+	} /* for blk */
+
+	  /* adjust read pointer */
+	if (resBits >= 8)
+	{
+	  pIn--;
+	  if (resBits >= 16)
+	    pIn--;
+	}
+
+#if defined F_SBC_DEBUG_FILE
+	if (pIn - pInputBuffer != frameSize)
+	  printf("! decoded bytes mismatch: frameSize %d, read %d\n", frameSize, (pIn - pInputBuffer));
+#endif
+
+	}
+
+	*pOutputSize = pOut - pOutputBuffer;
+	return (pIn - pInputBuffer);
+}
+
+/**
+* @brief		initialize v array
+* 
+* @param	v
+*
+* @return
+*
+*/
+static void initVTab(int* v)
+{
+	int i;
+	for (i = 0; i < 20; i++)
+	{
+		v[10 * i + 4] = (int) &v[10 * matrixingTable[i]]; /**< set pointer to successor group, first 4 */
+		v[10 * i + 5 + 4] = (int) &v[10 * matrixingTable[i] + 5]; /**< set pointer to successor group, second 4 */
+	}
+}
+
+
+/******************************* checkCRC *******************************/
+/* */
+/************************************************************************/
+static int checkCRC(unsigned char* pInput)
+{
+  int bits = 0;
+  unsigned char data[11];
+  TSBCData* pSBCData = &SBCData;
+  unsigned readCRC = pInput[3];
+  unsigned crc = 0x0f;
+  int i;
+  unsigned octet;
+  int len = 2;
+
+  /* copy relevant data to local array */
+  memcpy(data, pInput + 1, len); /* first two bytes */
+  if (pSBCData->nrof_channels == 2)
+    len *= 2;
+  if (pSBCData->nrof_subbands == 8)
+    len *= 2;
+  if (pSBCData->channel_mode == SBC_MODE_JOINT)
+    len += 1;
+  memcpy(data + 2, pInput + 4, len); /* joint and scale bytes */
+  bits = len * 8; /* joint and scale bits */
+  if (len == 5)
+    bits -= 4;  /* only 4 joint bits for 4 subbands */
+  bits += 16;  /* header bits */
+
+  for (i = 0; i < bits / 8; i++)
+    crc = crcTable[crc ^ data[i]];
+  
+  octet = data[i];
+  for (i = 0; i < bits % 8; i++) 
+  {
+    char bit = ((octet ^ crc) & 0x80) >> 7;
+    crc = ((crc & 0x7f) << 1) ^ (bit ? 0x1d : 0);
+    octet = octet << 1;
+  }
+
+  if (crc != readCRC)
+    return - 1;
+
+  return 0; 
+}
+
+
+/****************************** processMatrixing4 **************************/
+/**/
+/************************************************************************/
+static void processMatrixing4(const int* fnik, int* s, int* v, int iter)
+{
+  int i, si;
+  int v0, v1, v2, v3, v4, v5, v6, v7;
+  while (--iter >= 0)         /* for one or two channels */
+  {
+    const int * nik = fnik;
+    v0 = v1 = v2 = v3 = v4 = v5 = v6 = v7 = GUARD_HALFBIT;
+    for (i = 0; i < 4; i++)    /* iterate through samples */
+    {
+      int k = sizeof(TSampleData) / sizeof(int);    /* size of TSampleData in units of 'short' */
+      si = s[i * k];        /* current frequency sample */
+      if (si)     /* don't waste time on zero sample */
+      {
+        /* process 8 MACs */
+        v0 += *nik++ * si;
+        v1 += *nik++ * si;
+        v2 += *nik++ * si;
+        v3 += *nik++ * si;
+        v4 += *nik++ * si;
+        v5 += *nik++ * si;
+        v6 += *nik++ * si;
+        v7 += *nik++ * si;
+      } /* if (si) */
+      else
+        nik += 8;
+    } /* for i */
+    /* fill v array with MAC results */
+    *v++ = v0 >> GUARD;
+    *v++ = v1 >> GUARD;
+    *v++ = v2 >> GUARD;
+    *v++ = v3 >> GUARD;
+    v += 6;         /* skip fields reserved for pointer management and for 8 subbands */
+    *v++ = v4 >> GUARD;
+    *v++ = v5 >> GUARD;
+    *v++ = v6 >> GUARD;
+    *v++ = v7 >> GUARD;
+    v += 6;         /* skip fields reserved for pointer management and for 8 subbands */
+
+    /* adjust pointers for second channel */
+    v -= 20;
+    v += 200;
+    s += ((sizeof(TSampleData) / sizeof(int)) << 2);
+  } /* while iter */
+}
+
+
+/*************************** calcAudioSamples4 ****************************/
+/**/
+/************************************************************************/
+static void calcAudioSamples4(int* v, const int* d4, short* x, int mono, int channels)
+{
+  int* pv;
+  const int* pd;
+  int x0,x1,x2,x3;
+
+  while (--channels >= 0)
+  {
+    pd     = d4;
+    pv     = v;
+
+    x0 = *pd++ * pv[0] + GUARD_HALFBIT;
+    x1 = *pd++ * pv[1] + GUARD_HALFBIT;
+    x2 = *pd++ * pv[2] + GUARD_HALFBIT;
+    x3 = *pd++ * pv[3] + GUARD_HALFBIT;
+    pv = (int *)(pv[4]);
+    x0 += *pd++ * pv[0];
+    x1 += *pd++ * pv[1];
+    x2 += *pd++ * pv[2];
+    x3 += *pd++ * pv[3];
+    pv = (int *)(pv[4]);
+    x0 += *pd++ * pv[0];
+    x1 += *pd++ * pv[1];
+    x2 += *pd++ * pv[2];
+    x3 += *pd++ * pv[3];
+    pv = (int *)(pv[4]);
+    x0 += *pd++ * pv[0];
+    x1 += *pd++ * pv[1];
+    x2 += *pd++ * pv[2];
+    x3 += *pd++ * pv[3];
+    pv = (int *)(pv[4]);
+    x0 += *pd++ * pv[0];
+    x1 += *pd++ * pv[1];
+    x2 += *pd++ * pv[2];
+    x3 += *pd++ * pv[3];
+    pv = (int *)(pv[4]);
+    x0 += *pd++ * pv[0];
+    x1 += *pd++ * pv[1];
+    x2 += *pd++ * pv[2];
+    x3 += *pd++ * pv[3];
+    pv = (int *)(pv[4]);
+    x0 += *pd++ * pv[0];
+    x1 += *pd++ * pv[1];
+    x2 += *pd++ * pv[2];
+    x3 += *pd++ * pv[3];
+    pv = (int *)(pv[4]);
+    x0 += *pd++ * pv[0];
+    x1 += *pd++ * pv[1];
+    x2 += *pd++ * pv[2];
+    x3 += *pd++ * pv[3];
+    pv = (int *)(pv[4]);
+    x0 += *pd++ * pv[0];
+    x1 += *pd++ * pv[1];
+    x2 += *pd++ * pv[2];
+    x3 += *pd++ * pv[3];
+    pv = (int *)(pv[4]);
+    x0 += *pd++ * pv[0];
+    x1 += *pd++ * pv[1];
+    x2 += *pd++ * pv[2];
+    x3 += *pd++ * pv[3];
+
+    limit(x0);
+    limit(x1);
+    limit(x2);
+    limit(x3);
+
+    if (mono)
+    {
+      /* store result in every output byte */
+      x[0] = x0 >> GUARD;
+      x[1] = x1 >> GUARD;
+      x[2] = x2 >> GUARD;
+      x[3] = x3 >> GUARD;
+    }
+    else
+    {
+      /* store result in every second output byte */
+      x[0] = x0 >> GUARD;
+      x[2] = x1 >> GUARD;
+      x[4] = x2 >> GUARD;
+      x[6] = x3 >> GUARD;
+    }
+    x += 1;    /* go from left to right channel */
+    v += 200;  /* goto next v group */
+  } /* while channels */
+}
+
+
+/****************************** processMatrixing8 **************************/
+/**/
+/************************************************************************/
+static void processMatrixing8(const int* fnik, int* s, int* v, int iter)
+{
+  int i, si;
+  int v0, v1, v2, v3, v4, v5, v6, v7;
+  while (--iter >= 0)         /* for one or two channels */
+  {
+    const int* nik = fnik;
+    v0 = v1 = v2 = v3 = v4 = v5 = v6 = v7 = GUARD_HALFBIT;    /* using 8 registers for speed */
+    for (i = 0; i < 8; i++)    /* iterate through samples */
+    {
+      int k = sizeof(TSampleData) / sizeof(int);    /* size of TSampleData in units of 'int' */
+      si = s[i * k];        /* current frequency sample */
+      if (si)     /* don't waste time on zero sample */
+      {
+        /* process 8 MACs */
+        v0 += *nik++ * si;
+        v1 += *nik++ * si;
+        v2 += *nik++ * si;
+        v3 += *nik++ * si;
+        v4 += *nik++ * si;
+        v5 += *nik++ * si;
+        v6 += *nik++ * si;
+        v7 += *nik++ * si;
+      } /* if (si) */
+      else
+        nik += 8;
+    } /* for i */
+
+    /* fill v array with MAC results */
+    *v++ = v0 >> GUARD;
+    *v++ = v1 >> GUARD;
+    *v++ = v2 >> GUARD;
+    *v++ = v3 >> GUARD;
+    v++;         /* skip field reserved for pointer management */
+    *v++ = v4 >> GUARD;
+    *v++ = v5 >> GUARD;
+    *v++ = v6 >> GUARD;
+    *v++ = v7 >> GUARD;
+    v++;        /* skip field reserved for pointer management */
+
+    /* process the second group of 8 v fields */
+    v0 = v1 = v2 = v3 = v4 = v5 = v6 = v7 = GUARD_HALFBIT;
+    for (i = 0; i < 8; i++)
+    {
+      int k = sizeof(TSampleData) / sizeof(int);
+      si = s[i * k];
+      if (si)
+      {
+        v0 += *nik++ * si;
+        v1 += *nik++ * si;
+        v2 += *nik++ * si;
+        v3 += *nik++ * si;
+        v4 += *nik++ * si;
+        v5 += *nik++ * si;
+        v6 += *nik++ * si;
+        v7 += *nik++ * si;
+      } /* if */
+      else
+        nik += 8;
+    } /* for */
+    *v++ = v0 >> GUARD;
+    *v++ = v1 >> GUARD;
+    *v++ = v2 >> GUARD;
+    *v++ = v3 >> GUARD;
+    v++;
+    *v++ = v4 >> GUARD;
+    *v++ = v5 >> GUARD;
+    *v++ = v6 >> GUARD;
+    *v++ = v7 >> GUARD;
+    v++;
+    /* adjust pointers for second channel */
+    v -= 20;
+    v += 200;
+    s += ((sizeof(TSampleData) / sizeof(int)) << 3);
+  } /* while iter */
+}
+
+
+/*************************** calcAudioSamples8 ****************************/
+/**/
+/************************************************************************/
+static void calcAudioSamples8(int* v, const int* d8, short* x, int iter, int mono, int channels)
+{
+  int* pv;
+  const int*  pd;
+  int x0, x1, x2, x3;
+
+  while (--channels >= 0)
+  {
+    pd     = d8;
+    pv     = v;
+    while (--iter >= 0)
+    {
+      x0 = *pd++ * pv[0] + GUARD_HALFBIT;
+      x1 = *pd++ * pv[1] + GUARD_HALFBIT;
+      x2 = *pd++ * pv[2] + GUARD_HALFBIT;
+      x3 = *pd++ * pv[3] + GUARD_HALFBIT;
+      pv = (int *)(pv[4]);
+      x0 += *pd++ * pv[0];
+      x1 += *pd++ * pv[1];
+      x2 += *pd++ * pv[2];
+      x3 += *pd++ * pv[3];
+      pv = (int *)(pv[4]);
+      x0 += *pd++ * pv[0];
+      x1 += *pd++ * pv[1];
+      x2 += *pd++ * pv[2];
+      x3 += *pd++ * pv[3];
+      pv = (int *)(pv[4]);
+      x0 += *pd++ * pv[0];
+      x1 += *pd++ * pv[1];
+      x2 += *pd++ * pv[2];
+      x3 += *pd++ * pv[3];
+      pv = (int *)(pv[4]);
+      x0 += *pd++ * pv[0];
+      x1 += *pd++ * pv[1];
+      x2 += *pd++ * pv[2];
+      x3 += *pd++ * pv[3];
+      pv = (int *)(pv[4]);
+      x0 += *pd++ * pv[0];
+      x1 += *pd++ * pv[1];
+      x2 += *pd++ * pv[2];
+      x3 += *pd++ * pv[3];
+      pv = (int *)(pv[4]);
+      x0 += *pd++ * pv[0];
+      x1 += *pd++ * pv[1];
+      x2 += *pd++ * pv[2];
+      x3 += *pd++ * pv[3];
+      pv = (int *)(pv[4]);
+      x0 += *pd++ * pv[0];
+      x1 += *pd++ * pv[1];
+      x2 += *pd++ * pv[2];
+      x3 += *pd++ * pv[3];
+      pv = (int *)(pv[4]);
+      x0 += *pd++ * pv[0];
+      x1 += *pd++ * pv[1];
+      x2 += *pd++ * pv[2];
+      x3 += *pd++ * pv[3];
+      pv = (int *)(pv[4]);
+      x0 += *pd++ * pv[0];
+      x1 += *pd++ * pv[1];
+      x2 += *pd++ * pv[2];
+      x3 += *pd++ * pv[3];
+
+      limit(x0);
+      limit(x1);
+      limit(x2);
+      limit(x3);
+
+      if (mono)
+      {
+        /* store result in every output byte */
+        x[0] = x0 >> GUARD;
+        x[1] = x1 >> GUARD;
+        x[2] = x2 >> GUARD;
+        x[3] = x3 >> GUARD;
+      }
+      else
+      {
+        /* store result in every second output byte */
+        x[0] = x0 >> GUARD;
+        x[2] = x1 >> GUARD;
+        x[4] = x2 >> GUARD;
+        x[6] = x3 >> GUARD;
+      }
+      x     += (mono ? 4 : 8); /* step to next group */
+      pv     = v  + 5;
+    } /* while iter */
+    x -= 16;
+    x += 1;    /* go from left to right channel */
+    v += 200;  /* goto next v group */
+    iter = 2;
+  } /* while channels */
+}
+
+
+/*************************** computeBits *********************************/
+/* this implementation has been taken directly from the specification */
+/************************************************************************/
+static void computeBits(void)
+{
+  int loudness;
+  int max_bitneed = 0;
+  unsigned ch;
+  unsigned sb;
+  int bitneed[SBC_MAX_CHANNELS][SBC_MAX_SUBBANDS];
+  TSBCData* pSBCData= &SBCData;
+
+  if (pSBCData->channel_mode == SBC_MODE_MONO || pSBCData->channel_mode == SBC_MODE_DUAL)
+  {
+    for (ch=0; ch < pSBCData->nrof_channels; ch++)
+    {
+      /* Mono and Dual_Channel Bit Allocation */
+      if (pSBCData->allocation_method == SBC_ALLOCSNR)
+      {
+        for (sb = 0; sb < pSBCData->nrof_subbands; sb++)
+        {
+          int b = bitneed[ch][sb] = sampleData[ch][sb].scale_factor;
+          if (max_bitneed < b)
+            max_bitneed = b;
+        }
+      }
+      else
+      {
+        for (sb = 0;sb < pSBCData->nrof_subbands; sb++)
+        {
+          if (sampleData[ch][sb].scale_factor == 0)
+          {
+            int b = bitneed[ch][sb] = -5;
+            if (max_bitneed < b)
+              max_bitneed = b;
+          }
+          else
+          {
+            if (pSBCData->nrof_subbands == 4)
+            {
+              loudness = sampleData[ch][sb].scale_factor - offset4[pSBCData->sampling_frequency][sb];
+            }
+            else
+            {
+              loudness = sampleData[ch][sb].scale_factor - offset8[pSBCData->sampling_frequency][sb];
+            }
+            if (loudness > 0)
+            {
+              bitneed[ch][sb] = loudness / 2;
+              if (max_bitneed < loudness / 2)
+                max_bitneed = loudness / 2;
+
+            }
+            else
+            {
+              bitneed[ch][sb] = loudness;
+              if (max_bitneed < loudness)
+                max_bitneed = loudness;
+            }
+          }
+        }
+      }
+
+      /* Next an iterative process finds out how many bitslices fit into the bitpool */
+      {
+        int bitcount = 0;
+        int slicecount = 0;
+        int bitslice = max_bitneed + 1; /* init just above the largest sf */
+        do
+        {
+          bitslice--;
+          bitcount += slicecount;
+          slicecount = 0;
+          for (sb = 0;sb < pSBCData->nrof_subbands; sb++)
+          {
+            if((bitneed[ch][sb] > bitslice + 1) && (bitneed[ch][sb] < bitslice + 16))
+              slicecount++;
+            else if(bitneed[ch][sb] == bitslice + 1)
+              slicecount += 2;
+          }
+        } while (bitcount + slicecount < pSBCData->bitpool);
+
+        if (bitcount + slicecount == pSBCData->bitpool)
+        {
+          bitcount += slicecount;
+          bitslice--;
+        }
+
+        /* Thereafter, bits are distributed until the last bitslice is reached */
+        for (sb=0;sb<pSBCData->nrof_subbands;sb++)
+        {
+          if(bitneed[ch][sb]<bitslice+2)
+            sampleData[ch][sb].bits=0;
+          else
+            sampleData[ch][sb].bits=min(bitneed[ch][sb]-bitslice,16);
+        }
+
+        /* The remaining bits are allocated starting at subband 0 */
+        sb=0;
+        while(bitcount < pSBCData->bitpool && sb < pSBCData->nrof_subbands)
+        {
+          if((sampleData[ch][sb].bits>=2)&&(sampleData[ch][sb].bits<16))
+          {
+            sampleData[ch][sb].bits++; bitcount++;
+          }
+          else
+            if((bitneed[ch][sb]==bitslice+1)&&(pSBCData->bitpool>bitcount+1))
+            {
+              sampleData[ch][sb].bits=2; bitcount+=2;
+            }
+            sb++;
+        }
+        sb=0;
+        while(bitcount < pSBCData->bitpool && sb < pSBCData->nrof_subbands)
+        {
+          if (sampleData[ch][sb].bits < 16)
+          {
+            sampleData[ch][sb].bits++;
+            bitcount++;
+          }
+          sb++;
+        }
+      }
+    } /* for ch */
+  } /* MONO and DUAL */
+  else
+  {
+    /* Stereo and Joint_Stereo Bit Allocation */
+    if (pSBCData->allocation_method == SBC_ALLOCSNR)
+    {
+      for (ch = 0;ch < 2; ch++)
+      {
+        for (sb = 0; sb < pSBCData->nrof_subbands; sb++)
+        {
+          int b = bitneed[ch][sb] = sampleData[ch][sb].scale_factor;
+          if (b > max_bitneed)
+            max_bitneed = b;
+        }
+      }
+    }
+    else
+    {
+      for (ch = 0;ch < 2; ch++)
+      {
+        for (sb=0;sb<pSBCData->nrof_subbands;sb++)
+        {
+          if (sampleData[ch][sb].scale_factor == 0)
+          {
+            bitneed[ch][sb] = -5;
+            if (max_bitneed < -5)
+              max_bitneed = -5;
+          }
+          else
+          {
+            if (pSBCData->nrof_subbands == 4)
+            {
+              loudness = sampleData[ch][sb].scale_factor - offset4[pSBCData->sampling_frequency][sb];
+            }
+            else
+            {
+              loudness = sampleData[ch][sb].scale_factor - offset8[pSBCData->sampling_frequency][sb];
+            }
+            if (loudness > 0)
+            {
+              bitneed[ch][sb] = (loudness >> 1);
+              if ((loudness >> 1) > max_bitneed)
+                max_bitneed = (loudness >> 1);
+            }
+            else
+            {
+              bitneed[ch][sb] = loudness;
+              if (max_bitneed < loudness)
+                max_bitneed = loudness;
+            }
+          }
+        }
+      }
+    }    
+    /* Next an iterative process finds out how many bitslices fit into the bitpool */
+    computeSlicesInPoolStereo(max_bitneed, bitneed);
+  } /* Joint and Stereo Allocation */
+} /* computeBits */
+
+
+/*************************** computeSlicesInPoolStereo ******************/
+/* An iterative process finds out how many bitslices fit into the bitpool */
+/* The result is stored in the global array "bits" */
+/* this implementation has been taken directly from the specification */
+/************************************************************************/
+static void computeSlicesInPoolStereo( int max_bitneed, int bitneed[SBC_MAX_CHANNELS][SBC_MAX_SUBBANDS])
+{
+
+  int bitcount    = 0;
+  int slicecount  = 0;
+  int bitslice    = max_bitneed + 1; /* init just above the largest sf */
+  int sb, ch;
+  TSBCData* pSBCData= &SBCData;
+  int bitpool   = pSBCData->bitpool;
+  int nrof_subbands = pSBCData->nrof_subbands;
+
+  int* bn0 = bitneed[0];
+  int* bn1 = bitneed[1];
+
+  do
+  {
+    bitcount += slicecount;
+    slicecount = 0;
+
+    sb = nrof_subbands - 1;
+    do
+    {
+      int bitn;
+      /* channel 0 */
+      bitn = bn0[sb];
+      if((bitn >= bitslice) && (bitn < bitslice + 15))
+        slicecount++;
+      if(bitn == bitslice)
+        slicecount++;
+
+      /* channel 1 */
+      bitn = bn1[sb];
+      if((bitn >= bitslice) && (bitn < bitslice + 15))
+        slicecount++;
+      if(bitn == bitslice)
+        slicecount++;
+
+    } while (sb--);
+    bitslice--;
+  } while (bitcount + slicecount < bitpool);
+
+  if (bitcount + slicecount == bitpool)
+  {
+    bitcount += slicecount;
+    bitslice--;
+  }
+
+  /* Thereafter bits are distributed until the last bitslice is reached */
+  for (ch = 0; ch < 2; ch++)
+  {
+    for (sb=0;sb<nrof_subbands;sb++) 
+    {
+      if(bitneed[ch][sb] < bitslice + 2) 
+        sampleData[ch][sb].bits = 0; 
+      else 
+        sampleData[ch][sb].bits = min(bitneed[ch][sb] - bitslice, 16); 
+    }
+  }
+
+  /* The remaining bits are allocated starting with subband 0 of the first channel */
+  {
+    unsigned ch = 0;
+    sb=0;
+    while(bitcount < pSBCData->bitpool && sb < (int)pSBCData->nrof_subbands)
+    {
+      if((sampleData[ch][sb].bits>=2)&&(sampleData[ch][sb].bits<16))
+      {
+        sampleData[ch][sb].bits++; bitcount++;
+      }
+      else if((bitneed[ch][sb]==bitslice+1)&&(pSBCData->bitpool>bitcount+1))
+      {
+        sampleData[ch][sb].bits=2; bitcount+=2;
+      }
+      if (ch == 1)
+      {
+        ch = 0;
+        sb++;
+      }
+      else
+      {
+        ch = 1;
+      }
+    }
+    ch=0;
+    sb=0;
+    while(bitcount < pSBCData->bitpool && sb < (int)pSBCData->nrof_subbands)
+    {
+      if (sampleData[ch][sb].bits < 16)
+      {
+        sampleData[ch][sb].bits++;
+        bitcount++;
+      }
+      if (ch == 1)
+      {
+        ch = 0;
+        sb++;
+      }
+      else
+      {
+        ch = 1;
+      }
+    }
+  }
+}
+
+/*************************** sbcGetParams ********************************/
+/**/
+/************************************************************************/
+int sbcGetParams(unsigned char* pInputBuffer, int inputSize, TSBCParams* pParams)
+{
+	unsigned int c;
+	unsigned char* pIn = pInputBuffer;
+
+	if (inputSize < 3)
+		return SBC_NOT_ENOUGH_DATA;
+
+	/* read header */
+	c = *pIn++;
+	if (c != SBC_SYNCBYTE)
+		return SBC_NO_SYNCBYTE;
+
+	c = *pIn++;
+	pParams->samplingFrequency = (c >> 6) & 0x03;
+	pParams->blockNumber = (c >> 4) & 0x03;
+	pParams->channelMode = (c >> 2) & 0x03;
+	pParams->allocMethod = (c >> 1) & 0x01;
+	pParams->subbandNumber = (c >> 0) & 0x01;
+	pParams->bitpool = *pIn++;
+
+	return SBC_SUCCESS;	
+}
+
+#endif /*F_BT_MPA_A2DP_SINK*/
diff --git a/rtkbt/addon/vr_bee1_hidraw_daemon/hidraw/sbc/sbcenc.c b/rtkbt/addon/vr_bee1_hidraw_daemon/hidraw/sbc/sbcenc.c
new file mode 100755
index 0000000..17c7277
--- /dev/null
+++ b/rtkbt/addon/vr_bee1_hidraw_daemon/hidraw/sbc/sbcenc.c
@@ -0,0 +1,1705 @@
+/******************************************************
+* Project      : SBC
+* FileName     : $RCSfile: sbcenc.c,v $
+* Created      : April 2005
+* Version      : $Revision: 1.10 $
+* Last access  : $Date: 2005/10/27 06:31:28 $
+* Archive      : $Source: /var/lib/cvs/sw/src/codec/sbc/sbcenc.c,v $
+* Copyright    : (C) Stollmann E+V GmbH 2005
+* Author       : Lutz Vogelsang (lv@stollmann.de)
+* Compiler     : ANSI C compatible
+* Environment  : Windows NT 2000 user mode
+* Contents     : implementation of SBC encoder
+* Note         : 
+* History      : 
+*              : $Log: sbcenc.c,v $
+*              : Revision 1.10  2005/10/27 06:31:28  lv
+*              : corrected sample buffer size
+*              :
+*              : Revision 1.9  2005/10/27 06:06:34  lv
+*              : fixed high level distortion problems
+*              : various optimizations
+*              :
+*              : Revision 1.8  2005/10/26 08:06:40  jz
+*              : moved constant data to "const" memory
+*              :
+*              : Revision 1.7  2005/07/07 08:37:34  jz
+*              : Cosmetics
+*              :
+*              : Revision 1.6  2005/06/01 06:00:28  lv
+*              : integrated internal headers
+*              : fixed joint decoding bug
+*              :
+*              : Revision 1.5  2005/04/27 07:48:41  lv
+*              : tiny optimizations
+*              :
+*              : Revision 1.4  2005/04/26 08:37:11  lv
+*              : formatting
+*              :
+*              : Revision 1.3  2005/04/26 08:20:47  lv
+*              : added 4 subband implementation, crc creation,
+*              : joint mode
+*              :
+*              : Revision 1.2  2005/04/21 12:07:14  lv
+*              : 4 subband encoding implemented
+*              :
+*              : Revision 1.1  2005/04/21 09:52:54  lv
+*              : first checkin; 4 subbands not yet functional
+*              :
+*******************************************************
+* sbcenc.c
+******************************************************/
+
+#include <flags.h>
+#if 1
+
+#include <string.h>
+#include <stdio.h>
+#include <sbc.h>
+
+
+
+/* arm compiler */
+#ifdef __arm
+# define INLINE __inline
+# define VALUE_IN_REGS __value_in_regs
+# define PURE
+#else
+# define INLINE
+# define VALUE_IN_REGS
+# define PURE
+#endif
+
+/* macros and types */
+#if !defined min
+#define min(a,b)    (((a) < (b)) ? (a) : (b))
+#endif
+
+#define limit(a) \
+  if (a > 32767)\
+  a = 32767;\
+  if (a < -32768)\
+  a = -32768;
+
+/* sbc defines */
+#define GUARD_QUANT          16
+#define GUARD_QUANT_HALFBIT  32768   /* must equal (1 << (GUARD_QUANT - 1)) */ 
+#define GUARD_PAR            17
+#define GUARD_PAR_HALFBIT    65536   /* must equal (1 << (GUARD_QUANT - 1)) */ 
+#define GUARD_SUB            15
+#define GUARD_SUB_HALFBIT    16384   /* must equal (1 << (GUARD_QUANT - 1)) */ 
+
+/*#define F_SBC_ENC_USE_FLOAT*/
+/* forces floating point arithmetic for debugging purposes */
+
+#if defined F_SBC_ENC_USE_FLOAT
+#if defined F_SBC_ENC_REUSE_INPUT_BUFFER
+#undef F_SBC_ENC_REUSE_INPUT_BUFFER
+#endif
+#endif
+
+
+/* structs, typedefs */
+typedef struct tagSBCData  
+{
+  unsigned channel_mode;
+  unsigned allocation_method;
+  unsigned nrof_subbands;
+  unsigned nrof_blocks;
+  unsigned nrof_channels;
+  unsigned sampling_frequency; /* 0..3 */
+  int bitpool;
+} TSBCData;
+
+typedef struct tagSampleData
+{
+  int bits;
+  int scale_factor;
+  int calc1;
+  int calc2;
+#if defined F_SBC_DEBUG_FILE
+  int sb_sample;
+  unsigned qs;
+#endif
+} TSampleData;
+
+/* global variables */
+static TSBCData SBCData;
+static TSampleData sampleData[SBC_MAX_CHANNELS + 1][SBC_MAX_SUBBANDS]; /* one additional line for terminator  */
+static TSampleData jointSampleData[SBC_MAX_CHANNELS + 1][SBC_MAX_SUBBANDS];
+static unsigned x[SBC_MAX_CHANNELS][(SBC_MAX_SUBBANDS + 1) * 11];
+static unsigned y[SBC_MAX_CHANNELS][SBC_MAX_SUBBANDS * 2];
+
+#if !defined F_SBC_ENC_REUSE_INPUT_BUFFER
+static int samples[256];
+#endif
+
+#if defined F_SBC_ENC_USE_FLOAT
+static int X[2][80] = {0};
+static double Z[2][80] = {0.0};
+static double Y[2][16] = {0.0};
+static double S[2][16] = {0.0};
+#endif
+
+/* global constants */
+static const unsigned blockNumbers[4] = {4, 8, 12, 16};
+static const unsigned subbandNumbers[2] = {4, 8};
+static const char matrixingTable[11] = {18, 27, 36, 45, 54, 63, 72, 81, 0, 9, 18};
+static const int offset4[4][4] = {{-1,0,0,0},{-2,0,0,1},{-2,0,0,1},{-2,0,0,1}};
+static const int offset8[4][8] = {{-2,0,0,0,0,0,0,1},{-3,0,0,0,0,0,1,2},{-4,0,0,0,0,0,1,2},{-4,0,0,0,0,0,1,2}};
+
+static const int c4[40] = 
+{
+  /* ik iteration 2 * 5 groups @ 4 */
+  0, 70, 196, 358, 1430, 2679, 3785, 4220,
+  17772, 25557, 32327, 36940, -17772, -10177, -3778, 804,
+  -1430, -401, 245, 510, 503, 510, 245, -401,
+  3392, 804, -3778, -10177, 38576, 36940, 32327, 25557,
+  3392, 4220, 3785, 2679, 503, 358, 196, 70,
+};
+
+static const int c8[80] =
+{
+  /* ik iteration 2 * 5 groups @ 8 */
+  0, 21, 45, 73, 108, 149, 194, 234,
+  742, 1052, 1371, 1671, 1921, 2085, 2126, 2008,
+  8913, 10877, 12789, 14575, 16157, 17467, 18449, 19057,
+  -8913, -6971, -5122, -3422, -1919, -644, 383, 1161,
+  -742, -458, -216, -23, 118, 212, 261, 276,
+  264, 276, 261, 212, 118, -23, -216, -458,
+  1696, 1161, 383, -644, -1919, -3422, -5122, -6971,
+  19262, 19057, 18449, 17467, 16157, 14575, 12789, 10877,
+  1696, 2008, 2126, 2085, 1921, 1671, 1371, 1052,
+  264, 234, 194, 149, 108, 73, 45, 21,
+};
+
+static const int mik4[4][8] =
+{
+  23170, 30274, 32768, 30274, 23170, 12540, 0, -12540,
+  -23170, 12540, 32768, 12540, -23170, -30274, 0, 30274,
+  -23170, -12540, 32768, -12540, -23170, 30274, 0, -30274,
+  23170, -30274, 32768, -30274, 23170, -12540, 0, 12540,
+};
+
+static const int mik8[8][16] =
+{
+  23170, 27246, 30274, 32138, 32768, 32138, 30274, 27246, 23170, 18205, 12540, 6393, 0, -6393, -12540, -18205,
+  -23170, -6393, 12540, 27246, 32768, 27246, 12540, -6393, -23170, -32138, -30274, -18205, 0, 18205, 30274, 32138,
+  -23170, -32138, -12540, 18205, 32768, 18205, -12540, -32138, -23170, 6393, 30274, 27246, 0, -27246, -30274, -6393,
+  23170, -18205, -30274, 6393, 32768, 6393, -30274, -18205, 23170, 27246, -12540, -32138, 0, 32138, 12540, -27246,
+  23170, 18205, -30274, -6393, 32768, -6393, -30274, 18205, 23170, -27246, -12540, 32138, 0, -32138, 12540, 27246,
+  -23170, 32138, -12540, -18205, 32768, -18205, -12540, 32138, -23170, -6393, 30274, -27246, 0, 27246, -30274, 6393,
+  -23170, 6393, 12540, -27246, 32768, -27246, 12540, 6393, -23170, 32138, -30274, 18205, 0, -18205, 30274, -32138,
+  23170, -27246, 30274, -32138, 32768, -32138, 30274, -27246, 23170, -18205, 12540, -6393, 0, 6393, -12540, 18205,
+};
+
+static const unsigned char crcTable[256] = 
+{
+  0x00, 0x1D, 0x3A, 0x27, 0x74, 0x69, 0x4E, 0x53,
+  0xE8, 0xF5, 0xD2, 0xCF, 0x9C, 0x81, 0xA6, 0xBB,
+  0xCD, 0xD0, 0xF7, 0xEA, 0xB9, 0xA4, 0x83, 0x9E,
+  0x25, 0x38, 0x1F, 0x02, 0x51, 0x4C, 0x6B, 0x76,
+  0x87, 0x9A, 0xBD, 0xA0, 0xF3, 0xEE, 0xC9, 0xD4,
+  0x6F, 0x72, 0x55, 0x48, 0x1B, 0x06, 0x21, 0x3C,
+  0x4A, 0x57, 0x70, 0x6D, 0x3E, 0x23, 0x04, 0x19,
+  0xA2, 0xBF, 0x98, 0x85, 0xD6, 0xCB, 0xEC, 0xF1,
+  0x13, 0x0E, 0x29, 0x34, 0x67, 0x7A, 0x5D, 0x40,
+  0xFB, 0xE6, 0xC1, 0xDC, 0x8F, 0x92, 0xB5, 0xA8,
+  0xDE, 0xC3, 0xE4, 0xF9, 0xAA, 0xB7, 0x90, 0x8D,
+  0x36, 0x2B, 0x0C, 0x11, 0x42, 0x5F, 0x78, 0x65,
+  0x94, 0x89, 0xAE, 0xB3, 0xE0, 0xFD, 0xDA, 0xC7,
+  0x7C, 0x61, 0x46, 0x5B, 0x08, 0x15, 0x32, 0x2F,
+  0x59, 0x44, 0x63, 0x7E, 0x2D, 0x30, 0x17, 0x0A,
+  0xB1, 0xAC, 0x8B, 0x96, 0xC5, 0xD8, 0xFF, 0xE2,
+  0x26, 0x3B, 0x1C, 0x01, 0x52, 0x4F, 0x68, 0x75,
+  0xCE, 0xD3, 0xF4, 0xE9, 0xBA, 0xA7, 0x80, 0x9D,
+  0xEB, 0xF6, 0xD1, 0xCC, 0x9F, 0x82, 0xA5, 0xB8,
+  0x03, 0x1E, 0x39, 0x24, 0x77, 0x6A, 0x4D, 0x50,
+  0xA1, 0xBC, 0x9B, 0x86, 0xD5, 0xC8, 0xEF, 0xF2,
+  0x49, 0x54, 0x73, 0x6E, 0x3D, 0x20, 0x07, 0x1A,
+  0x6C, 0x71, 0x56, 0x4B, 0x18, 0x05, 0x22, 0x3F,
+  0x84, 0x99, 0xBE, 0xA3, 0xF0, 0xED, 0xCA, 0xD7,
+  0x35, 0x28, 0x0F, 0x12, 0x41, 0x5C, 0x7B, 0x66,
+  0xDD, 0xC0, 0xE7, 0xFA, 0xA9, 0xB4, 0x93, 0x8E,
+  0xF8, 0xE5, 0xC2, 0xDF, 0x8C, 0x91, 0xB6, 0xAB,
+  0x10, 0x0D, 0x2A, 0x37, 0x64, 0x79, 0x5E, 0x43,
+  0xB2, 0xAF, 0x88, 0x95, 0xC6, 0xDB, 0xFC, 0xE1,
+  0x5A, 0x47, 0x60, 0x7D, 0x2E, 0x33, 0x14, 0x09,
+  0x7F, 0x62, 0x45, 0x58, 0x0B, 0x16, 0x31, 0x2C,
+  0x97, 0x8A, 0xAD, 0xB0, 0xE3, 0xFE, 0xD9, 0xC4
+};
+
+#if defined F_SBC_ENC_USE_FLOAT
+static const double MIK[8][16] =
+{
+  0.707106781, 0.831469612, 0.923879533, 0.98078528, 1, 0.98078528, 0.923879533, 0.831469612, 0.707106781, 0.555570233, 0.382683432, 0.195090322, 0.0, -0.195090322, -0.382683432, -0.555570233,
+    -0.707106781, -0.195090322, 0.382683432, 0.831469612, 1, 0.831469612, 0.382683432, -0.195090322, -0.707106781, -0.98078528, -0.923879533, -0.555570233, 0.0, 0.555570233, 0.923879533, 0.98078528,
+    -0.707106781, -0.98078528, -0.382683432, 0.555570233, 1, 0.555570233, -0.382683432, -0.98078528, -0.707106781, 0.195090322, 0.923879533, 0.831469612, 0.0, -0.831469612, -0.923879533, -0.195090322,
+    0.707106781, -0.555570233, -0.923879533, 0.195090322, 1, 0.195090322, -0.923879533, -0.555570233, 0.707106781, 0.831469612, -0.382683432, -0.98078528, 0.0, 0.98078528, 0.382683432, -0.831469612,
+    0.707106781, 0.555570233, -0.923879533, -0.195090322, 1, -0.195090322, -0.923879533, 0.555570233, 0.707106781, -0.831469612, -0.382683432, 0.98078528, 0.0, -0.98078528, 0.382683432, 0.831469612,
+    -0.707106781, 0.98078528, -0.382683432, -0.555570233, 1, -0.555570233, -0.382683432, 0.98078528, -0.707106781, -0.195090322, 0.923879533, -0.831469612, 0.0, 0.831469612, -0.923879533, 0.195090322,
+    -0.707106781, 0.195090322, 0.382683432, -0.831469612, 1, -0.831469612, 0.382683432, 0.195090322, -0.707106781, 0.98078528, -0.923879533, 0.555570233, 0.0, -0.555570233, 0.923879533, -0.98078528,
+    0.707106781, -0.831469612, 0.923879533, -0.98078528, 1, -0.98078528, 0.923879533, -0.831469612, 0.707106781, -0.555570233, 0.382683432, -0.195090322, 0.0, 0.195090322, -0.382683432, 0.555570233,
+};
+
+static const double C[80] = 
+{
+  0.00000000E+00, 1.56575398E-04, 3.43256425E-04, 5.54620202E-04,
+    8.23919506E-04, 1.13992507E-03, 1.47640169E-03, 1.78371725E-03,
+    2.01182542E-03, 2.10371989E-03, 1.99454554E-03, 1.61656283E-03,
+    9.02154502E-04, -1.78805361E-04, -1.64973098E-03, -3.49717454E-03,
+    5.65949473E-03, 8.02941163E-03, 1.04584443E-02, 1.27472335E-02,
+    1.46525263E-02, 1.59045603E-02, 1.62208471E-02, 1.53184106E-02,
+    1.29371806E-02, 8.85757540E-03, 2.92408442E-03, -4.91578024E-03,
+    -1.46404076E-02, -2.61098752E-02, -3.90751381E-02, -5.31873032E-02,
+    6.79989431E-02, 8.29847578E-02, 9.75753918E-02, 1.11196689E-01,
+    1.23264548E-01, 1.33264415E-01, 1.40753505E-01, 1.45389847E-01,
+    1.46955068E-01, 1.45389847E-01, 1.40753505E-01, 1.33264415E-01,
+    1.23264548E-01, 1.11196689E-01, 9.75753918E-02, 8.29847578E-02,
+    -6.79989431E-02, -5.31873032E-02, -3.90751381E-02, -2.61098752E-02,
+    -1.46404076E-02, -4.91578024E-03, 2.92408442E-03, 8.85757540E-03,
+    1.29371806E-02, 1.53184106E-02, 1.62208471E-02, 1.59045603E-02,
+    1.46525263E-02, 1.27472335E-02, 1.04584443E-02, 8.02941163E-03,
+    -5.65949473E-03, -3.49717454E-03, -1.64973098E-03, -1.78805361E-04,
+    9.02154502E-04, 1.61656283E-03, 1.99454554E-03, 2.10371989E-03,
+    2.01182542E-03, 1.78371725E-03, 1.47640169E-03, 1.13992507E-03,
+    8.23919506E-04, 5.54620202E-04, 3.43256425E-04, 1.56575398E-04,
+};
+#endif
+
+/* internal functions declarations */
+static void initXTab(int* pTab);
+
+static void calcPartials4(int* pAudio, const int* pFactors, int channels, int* pMatrix);
+static void createSubbandSamples4(int* pMatrix, const int* pFactors, int channels, int* pSamples, TSampleData* pSampleData);
+static void calcPartials8(int* pAudio, const int* pFactors, int channels, int* pMatrix);
+static void createSubbandSamples8(int* pMatrix, const int* pFactors, int channels, int* pSamples, TSampleData* pSampleData);
+static void joinSubbands4(int* pSamples, TSBCData* pSBCData, TSampleData* pSampleData, unsigned char* pJoint);
+static void joinSubbands8(int* pSamples, TSBCData* pSBCData, TSampleData* pSampleData, unsigned char* pJoint);
+
+static void createCRC(unsigned char* pOutput);
+
+static void computeBits(void);
+static void computeSlicesInPoolStereo( int max_bitneed, int bitneed[SBC_MAX_CHANNELS][SBC_MAX_SUBBANDS]);
+
+#if defined F_SBC_DEBUG_FILE
+static void dumpXTab(int* pTab);
+static void dumpYTab(int* pTab);
+static void dumpSampleData(TSampleData* pTab);
+static void dumpInputBuffer(short* pBuffer, int index);
+#endif
+
+/***************************** sbcInit ************************************/
+/**/
+/************************************************************************/
+void sbcInitEncoder(void)
+{
+  initXTab(&x[0][0]);
+}
+
+/**************************** sbcEncode **********************************/
+/**/
+/************************************************************************/
+int sbcEncode(unsigned char* pInputBuffer, int inputSize, TSBCParams* params, unsigned char* pOutputBuffer, int* pOutputSize)
+{  
+  int blk;
+  TSBCData* pSBCData = &SBCData;
+  unsigned char* pScaleFactors;
+  unsigned char* pJoint;
+  unsigned char* pCRC;
+  int frameSize;
+  int reqInSize;
+  TSampleData* pSampleData = &sampleData[0][0];
+  unsigned char* pOut = pOutputBuffer;
+  short* pIn = (short*) pInputBuffer;
+#if defined F_SBC_ENC_REUSE_INPUT_BUFFER
+  short* pSamples;
+#else
+  int* pSamples;
+#endif
+
+  /* transfer public params to internal values */
+  pSBCData->sampling_frequency = (unsigned) params->samplingFrequency;
+  pSBCData->nrof_blocks = blockNumbers[params->blockNumber];
+  pSBCData->channel_mode = params->channelMode;
+  pSBCData->nrof_channels = (params->channelMode == SBC_MODE_MONO) ? 1 : 2;
+  pSBCData->allocation_method = params->allocMethod;
+  pSBCData->nrof_subbands = subbandNumbers[params->subbandNumber];
+  pSBCData->bitpool = params->bitpool;
+
+  /* check for sufficient input buffer size */
+  reqInSize = pSBCData->nrof_subbands * pSBCData->nrof_channels * (pSBCData->nrof_blocks << 1);
+  if (inputSize < reqInSize)
+  {
+    *pOutputSize = 0;
+    return SBC_NOT_ENOUGH_DATA;
+  }
+
+  /* check for sufficient output buffer size */   
+  {
+    int sb, bb;
+    frameSize = 4;
+    sb = pSBCData->nrof_subbands;
+    bb = pSBCData->nrof_blocks * pSBCData->bitpool;
+    
+    switch (pSBCData->channel_mode)
+    {
+    case SBC_MODE_MONO:
+      frameSize += (sb >>1 ) + (bb >> 3); 
+      /* (bb)>>3 must be rounded towards plus infinity */
+      if (bb & 0x7)
+        frameSize++;
+      break;
+    case SBC_MODE_DUAL:
+      frameSize += sb + (bb >> 2); 
+      break;
+    case SBC_MODE_STEREO:
+      frameSize += sb + (bb >> 3); 
+      /* (bb)>>3 must be rounded towards plus infinity */
+      if (bb & 0x7)
+        frameSize++;
+      break;
+    case SBC_MODE_JOINT:
+      frameSize += sb + ((sb + bb) >> 3); 
+      /* (sb + bb)>>3 must be rounded towards plus infinity */
+      if ((sb + bb) & 0x7)
+        frameSize++;
+      break;
+    }
+
+    if (*pOutputSize < frameSize)
+    {
+      *pOutputSize = frameSize;
+      return SBC_BUFFER_TOO_SMALL;
+    }
+  }
+
+  /* create frame header */
+  {
+    unsigned char c = 0;
+    *pOut++ = SBC_SYNCBYTE;
+    c |= (params->samplingFrequency << 6);
+    c |= (params->blockNumber << 4);
+    c |= (params->channelMode << 2);
+    c |= (params->allocMethod << 1);
+    c |= params->subbandNumber;
+    *pOut++ = c;
+    *pOut++ = params->bitpool;
+    pCRC = pOut++;
+
+    if (params->channelMode == SBC_MODE_JOINT)
+    {
+      pJoint = pOut++;
+      *pJoint = 0;
+    }
+  }
+
+  /* reserve space for scale factors */
+  pScaleFactors = pOut;
+  pOut += (pSBCData->nrof_channels * (pSBCData->nrof_subbands >> 1));
+
+  /* initialize sample data */
+  {
+    int i;
+    for (i = 0; i < 16; i++)
+      pSampleData[i].calc1 = pSampleData[i].calc2 = 0;
+  }
+
+
+#if ! defined F_SBC_ENC_USE_FLOAT
+  /* create subband samples */
+  {
+#if ! defined F_SBC_ENC_REUSE_INPUT_BUFFER
+    pSamples = &samples[0];
+#endif
+    for (blk = pSBCData->nrof_blocks; blk > 0; blk--)
+    {
+      static int offset = 0;
+      int* pxLeft, *pxRight;
+      int sb, ns;
+#if defined F_SBC_ENC_REUSE_INPUT_BUFFER
+      pSamples = pIn; /* input buffer is used as temporary memory for subband samples */
+#endif
+
+      /* update audio ring buffer position */
+      if (offset <= 0)
+        offset = 81;
+      else
+        offset -= 9;
+      pxLeft = &x[0][0] + offset;
+      pxRight = pxLeft + 99;
+
+      /* fill in new audio samples */ 
+      {
+        ns = pSBCData->nrof_subbands;
+        for (sb = 0; sb < ns; sb++)
+        {
+          pxLeft[ns - sb - 1] = *pIn++;
+          if (pSBCData->nrof_channels == 2)
+          {
+            pxRight[ns - sb - 1] = *pIn++;
+          }
+        }
+      }
+
+      /* frequency band analysis */
+      if (pSBCData->nrof_subbands == 4)
+      {
+        calcPartials4(pxLeft, &c4[0], pSBCData->nrof_channels, &y[0][0]);
+        createSubbandSamples4(&y[0][0], &mik4[0][0], pSBCData->nrof_channels, (int*) pSamples, &sampleData[0][0]);
+      }
+      else
+      {
+        calcPartials8(pxLeft, &c8[0], pSBCData->nrof_channels, &y[0][0]);
+        createSubbandSamples8(&y[0][0], &mik8[0][0], pSBCData->nrof_channels, (int*) pSamples, &sampleData[0][0]);
+      } /* if subbands */
+
+#if ! defined F_SBC_ENC_REUSE_INPUT_BUFFER
+      pSamples += pSBCData->nrof_subbands * pSBCData->nrof_channels;
+#endif
+    }  /* for blk */
+  }
+
+#else
+
+  /* use floating point arithmetic; for debugging only, for stereo 8 subbands only */
+  {
+#if ! defined F_SBC_ENC_REUSE_INPUT_BUFFER
+    pSamples = &samples[0];
+#endif
+    
+    for (blk = pSBCData->nrof_blocks; blk > 0; blk--)
+    {
+      int i, k;
+
+      /* shift audio samples */
+      for (i = 79; i >= 8; i--)
+      {
+        X[0][i] = X[0][i - 8];
+        X[1][i] = X[1][i - 8];
+      }
+
+      /* fill in new samples */
+      for (i = 7; i >= 0; i--)
+      {
+        X[0][i] = *pIn++;
+        X[1][i] = *pIn++;
+      }
+
+      /* multiply with filter coeffs */
+      for (i = 0; i < 80 ; i++)
+      {
+        Z[0][i] = X[0][i] * C[i];
+        Z[1][i] = X[1][i] * C[i];
+      }
+
+      /* init Y */
+      for (i = 0; i < 16; i++)
+      {
+        Y[0][i] = 0;
+        Y[1][i] = 0;
+      }
+      /* partial calc */
+      for (i = 0; i < 16; i++)
+      {
+        for (k = 0; k < 5; k++)
+        {
+          Y[0][i] += Z[0][i + k * 16];
+          Y[1][i] += Z[1][i + k * 16];
+        }
+      }
+
+      /* init S */
+      for (i = 0; i < 16; i++)
+      {
+        S[0][i] = 0;
+        S[1][i] = 0;
+      }
+      /* subband samples */
+      for (i = 0; i < 8; i++)
+      {
+        for (k = 0; k < 16; k++)
+        {
+          S[0][i] += MIK[i][k] * Y[0][k];
+          S[1][i] += MIK[i][k] * Y[1][k];
+        }
+      }
+
+      for (i = 0; i < 8; i++)
+      {
+        if (S[0][i] >= 0)
+          *pSamples++ = (int) (S[0][i] + 0.5);
+        else
+          *pSamples++ = (int) (S[0][i] - 0.5);
+
+        if (pSamples[-1] > sampleData[0][i].calc1)
+          sampleData[0][i].calc1 = pSamples[-1];
+        if (pSamples[-1] < sampleData[0][i].calc2)
+          sampleData[0][i].calc2 = pSamples[-1];
+      }
+
+      for (i = 0; i < 8; i++)
+      {
+        if (S[1][i] >= 0)
+          *pSamples++ = (int) (S[1][i] + 0.5);
+        else
+          *pSamples++ = (int) (S[1][i] - 0.5);
+
+        if (pSamples[-1] > sampleData[1][i].calc1)
+          sampleData[1][i].calc1 = pSamples[-1];
+        if (pSamples[-1] < sampleData[1][i].calc2)
+          sampleData[1][i].calc2 = pSamples[-1];
+      }
+
+    }  /* for blk */
+  }
+#endif
+
+  /* calculate scale factors */
+  {
+    int i = 0;
+    for (i = pSBCData->nrof_channels * pSBCData->nrof_subbands - 1; i >= 0; i--)
+    {
+      int sf;
+      int mx = pSampleData[i].calc1;
+      int mn = pSampleData[i].calc2 * -1;
+      if (mn > mx)
+        mx = mn;
+
+      if (mx > 255) if (mx > 4095) if (mx > 16383) if (mx > 32767) sf = 15; else sf = 14; else if (mx > 8191) sf = 13; else sf = 12;
+      else if (mx > 1023) if (mx > 2047) sf = 11; else sf = 10; else if (mx > 511) sf = 9; else sf = 8;
+      else if (mx > 15) if (mx > 63) if (mx > 127) sf = 7; else sf = 6; else if (mx > 31) sf = 5; else sf = 4;
+      else if (mx > 3) if (mx > 7) sf = 3; else sf = 2; else if (mx > 1) sf = 1; else sf = 0; 
+
+      pSampleData[i].scale_factor = sf;
+    } /* for i */
+  }
+
+  /* join subband samples */
+#if defined F_SBC_ENC_REUSE_INPUT_BUFFER
+  pSamples = (short*) pInputBuffer;
+#else
+  pSamples = &samples[0];
+#endif
+  if (pSBCData->channel_mode == SBC_MODE_JOINT)
+  {  
+    if (pSBCData->nrof_subbands == 4)
+      joinSubbands4((int*) pSamples, pSBCData, &sampleData[0][0], pJoint);
+    else
+      joinSubbands8((int*) pSamples, pSBCData, &sampleData[0][0], pJoint);
+  } /* if joint */
+
+  /* write scale factors */
+  {
+    unsigned char c = 0;
+    int ch;
+
+    if (pSBCData->nrof_subbands == 4)
+    {
+      if (pSBCData->channel_mode == SBC_MODE_JOINT)
+      {
+        /* data pointer adjustment required due to just 4 join bits in header  */
+        for (ch = 2; ch > 0; ch--)
+        {
+          c = pSampleData[0].scale_factor;
+          pScaleFactors[-1] |= c;  /* write to output buffer */
+          c = pSampleData[1].scale_factor << 4;
+          c |= pSampleData[2].scale_factor;
+          pScaleFactors[0] = c;  /* write to output buffer */
+          c = pSampleData[3].scale_factor << 4;
+          pScaleFactors[1] = c;  /* write to output buffer */
+          pSampleData += 4;
+          pScaleFactors += 2;
+        }
+      }
+      else
+      {
+        for (ch = pSBCData->nrof_channels; ch > 0; ch--)
+        {
+          c = pSampleData[0].scale_factor << 4;
+          c |= pSampleData[1].scale_factor;
+          pScaleFactors[0] = c;  /* write to output buffer */
+          c = pSampleData[2].scale_factor << 4;
+          c |= pSampleData[3].scale_factor;
+          pScaleFactors[1] = c;  /* write to output buffer */
+          pSampleData += 4;
+          pScaleFactors += 2;
+        }
+      }
+    }
+    else
+    {
+      for (ch = pSBCData->nrof_channels; ch > 0; ch--)
+      {
+        c = pSampleData[0].scale_factor << 4;
+        c |= pSampleData[1].scale_factor;
+        pScaleFactors[0] = c;  /* write to output buffer */
+        c = pSampleData[2].scale_factor << 4;
+        c |= pSampleData[3].scale_factor;
+        pScaleFactors[1] = c;  /* write to output buffer */
+        c = pSampleData[4].scale_factor << 4;
+        c |= pSampleData[5].scale_factor;
+        pScaleFactors[2] = c;  /* write to output buffer */
+        c = pSampleData[6].scale_factor << 4;
+        c |= pSampleData[7].scale_factor;
+        pScaleFactors[3] = c;  /* write to output buffer */
+        pSampleData += 8;
+        pScaleFactors += 4;
+      }
+    } /* if subbands */
+    pSampleData = &sampleData[0][0];
+  } /* write scale factors */
+
+  /* create checksum */
+  createCRC(pOutputBuffer);
+
+  /* adjust sample data for computeBits function */
+  if (pSBCData->nrof_channels == 2)
+  {
+    if (pSBCData->nrof_subbands == 4)
+    {
+      /* move TSampleData structs into second row of sampleData array */
+      memcpy(&pSampleData[8], &pSampleData[4], 4 * sizeof(TSampleData));
+    }
+  }
+
+  /* calculate bit allocation */
+  computeBits();
+
+  /* re-adjust sample data */
+  if (pSBCData->nrof_channels == 2)
+  {
+    if (pSBCData->nrof_subbands == 4)
+    {
+      /* move TSampleData structs into one row within sampleData array */
+      memcpy(&pSampleData[4], &pSampleData[8], 4 * sizeof(TSampleData));
+    }
+  }
+  /* set terminator */
+  pSampleData[pSBCData->nrof_channels * pSBCData->nrof_subbands].bits = SBC_TERMINATOR;
+
+  /* quantize, normalize and write subband samples */
+  {
+    unsigned out = 0;
+    int resBits = 0;
+#if defined F_SBC_ENC_REUSE_INPUT_BUFFER
+    pSamples = (short*) pInputBuffer;  /* input buffer is storing the unquantized subband samples */
+#else
+    pSamples = &samples[0];
+#endif
+
+    if (pSBCData->nrof_subbands == 4)
+    {
+      if (pSBCData->channel_mode == SBC_MODE_JOINT)
+      {
+        /* data pointer adjustment required due to just 4 joint bits in header  */
+        pOut--;
+        resBits = 4;
+        out = (*pOut & 0xf0) >> 4;
+      }
+    }
+
+    /* precalculate fixed factors */
+    for (;;)
+    {
+      int bits;
+
+      if ((bits = (*pSampleData++).bits) != 0)
+      {
+        /* break on terminator */
+        if (bits < 0)  /* arm assembler optimization; saves 3 cycles compared to 'if (bits == SBC_TERMINATOR)' ! */
+          break;
+        pSampleData[-1].calc1 = ((1 << bits) - 1) << (GUARD_QUANT - 1);  /* levels including factor 1/2, guarded */
+        pSampleData[-1].calc2 = (pSampleData[-1].calc1) >> (pSampleData[-1].scale_factor + 1); /* levels/scale factors, guarded via calc1 */
+      }
+    }
+
+    /* quantize, normalize and write subband samples */
+    for (blk = pSBCData->nrof_blocks; blk > 0; blk--)
+    {
+      pSampleData = &sampleData[0][0];
+
+      for (;;)
+      {
+        int bits;
+
+        if ((bits = (*pSampleData++).bits) != 0)
+        {
+          int qs;
+          int msk;
+          /* break on terminator */
+          if (bits < 0)  /* arm assembler optimization; saves 3 cycles compared to 'if (bits == SBC_TERMINATOR)' ! */
+            break;
+          /* calculate subband sample */
+          qs = (*pSamples++ * pSampleData[-1].calc2 + pSampleData[-1].calc1) >> (GUARD_QUANT); /* un-guard (= round towards minus infinity) */
+          /* qs is a 32 bit integer holding the data to be written within the [bits] LSBs */                    
+
+#if defined F_SBC_ENC_USE_FLOAT
+          {
+            double should;
+            should = ((((double) pSamples[-1]) / (1 <<(pSampleData[-1].scale_factor + 1)) + 1) * ((1 << pSampleData[-1].bits) - 1.0) - 1.0) / 2.0;
+            if (should > 0)
+              should += 0.5;
+            else if (should < 0)
+              should -= 0.5;
+            qs = (int) should;
+          }
+#endif
+
+          msk = (1 << bits) - 1;
+          qs &= msk;
+#if defined F_SBC_DEBUG_FILE
+          pSampleData[-1].qs = qs;
+#endif
+          
+          /* write subband sample */
+          out <<= bits;
+          out |= qs;
+          resBits += bits;
+          while (resBits >= 8)
+          {
+            *pOut++ = (unsigned char) (out >> (resBits - 8));
+            resBits -= 8;
+          } /* while */
+        } /* if bits */
+        else
+        {
+#if defined F_SBC_DEBUG_FILE
+          pSampleData[-1].qs = 0;
+#endif
+          pSamples++;
+        }
+#if defined F_SBC_DEBUG_FILE
+        pSampleData[-1].sb_sample = *pSamples;
+#endif
+      } /* for */
+
+#if defined F_SBC_DEBUG_FILE
+      {
+        int sb, nsb;
+        TSampleData* pd;
+        nsb = pSBCData->nrof_subbands;
+        pd = &sampleData[0][0];
+        for (sb = 0; sb < nsb; sb++)
+        {
+          printf("%d, %d, %d, %u\n",
+            pd[sb].sb_sample, pd[sb].bits, pd[sb].scale_factor, pd[sb].qs);
+          printf("%d, %d, %d, %u\n",
+            pd[sb+nsb].sb_sample, pd[sb+nsb].bits, pd[sb+nsb].scale_factor, pd[sb+nsb].qs);
+        }  
+      }
+#endif
+
+    } /* for blk */
+
+    /* padding */
+    if (resBits > 0)
+    {
+      *pOut++ = (unsigned char) (out >> (8 - resBits));
+    }
+  }
+
+  *pOutputSize = pOut - pOutputBuffer;
+
+#if defined F_SBC_DEBUG_FILE
+  if (*pOutputSize != frameSize)
+    printf("! output size mismatch: frameSize %d, created %d\n", frameSize, *pOutputSize);
+  if ((unsigned char*) pIn - pInputBuffer != reqInSize)
+    printf("! input size mismatch: requested input %d, read %d\n", reqInSize, ((unsigned char*) pIn - pInputBuffer));
+#endif
+
+  return ((unsigned char*) pIn - pInputBuffer);
+}
+
+
+/***************************** initXTab ***********************************/
+/* initialize x array */
+/************************************************************************/
+static void initXTab(int* pTab)
+{
+  int i;
+  int* px   = pTab;
+  int* px1  = pTab + 99;
+
+  memset(px, 0, 198);
+  for (i = 0; i < 11; i++)
+  {
+    px [i * 9 + 8] = (int) &px [matrixingTable[i]]; /* set pointer to successor group, first channel */
+    px1[i * 9 + 8] = (int) &px1[matrixingTable[i]]; /* set pointer to successor group, second channel */
+  }
+} /* initXTab */
+
+
+/******************************** calcPartials4 *****************************/
+/*  */
+/************************************************************************/
+static void calcPartials4(int* pAudio, const int* pFactors, int channels, int* pMatrix)
+{
+  int y0, y1, y2, y3;
+  int iter = 2;
+  int* px = pAudio;
+  const int* pc = pFactors;
+  int* py = pMatrix;
+
+  while (--channels >= 0)
+  {
+    while (--iter >= 0)
+    {
+      y0 = y1 = y2 = y3 = GUARD_PAR_HALFBIT;
+
+      y0 += *pc++ * px[0];
+      y1 += *pc++ * px[1];
+      y2 += *pc++ * px[2];
+      y3 += *pc++ * px[3];
+      px = (int*) px[8];  /* jump to next group */
+
+      y0 += *pc++ * px[0];
+      y1 += *pc++ * px[1];
+      y2 += *pc++ * px[2];
+      y3 += *pc++ * px[3];
+      px = (int*) px[8];
+
+      y0 += *pc++ * px[0];
+      y1 += *pc++ * px[1];
+      y2 += *pc++ * px[2];
+      y3 += *pc++ * px[3];
+      px = (int*) px[8];
+
+      y0 += *pc++ * px[0];
+      y1 += *pc++ * px[1];
+      y2 += *pc++ * px[2];
+      y3 += *pc++ * px[3];
+      px = (int*) px[8];
+
+      y0 += *pc++ * px[0];
+      y1 += *pc++ * px[1];
+      y2 += *pc++ * px[2];
+      y3 += *pc++ * px[3];
+      px += 9;
+      px = (int*) px[8];
+
+      *py++ = y0 >> (GUARD_PAR);
+      *py++ = y1 >> (GUARD_PAR);
+      *py++ = y2 >> (GUARD_PAR);
+      *py++ = y3 >> (GUARD_PAR);
+
+    }  /* iter */
+    iter = 2;
+    pc -= 40;
+    px = pAudio + 99;
+  }  /* channels */
+} /* calcPartials4 */
+
+
+/********************* createSubbandSamples4 *****************************/
+/* */
+/************************************************************************/
+static void createSubbandSamples4(int* pMatrix, const int* pFactors, int channels, int* pSamples, TSampleData* pSampleData)
+{
+  int i, s;
+  int* py = pMatrix;
+  const int* pmik = pFactors;
+#if defined F_SBC_ENC_REUSE_INPUT_BUFFER
+  short* ps = (short*) pSamples;
+#else
+  int* ps = pSamples;
+#endif
+  TSampleData* pd = pSampleData;
+
+  while (--channels >= 0)
+  {
+    for (i = 0; i < 4; i++)
+    {
+      s = GUARD_SUB_HALFBIT;
+      s += *pmik++ * py[0];
+      s += *pmik++ * py[1];
+      s += *pmik++ * py[2];
+      s += *pmik++ * py[3];
+      s += *pmik++ * py[4];
+      s += *pmik++ * py[5];
+      s += *pmik++ * py[6];
+      s += *pmik++ * py[7];
+      s >>= (GUARD_SUB);
+      
+      /* save to sample buffer */
+#if defined F_SBC_ENC_REUSE_INPUT_BUFFER
+      limit(s);
+      *ps++ = (short) s;  /* save to sample buffer */
+#else
+      *ps++ = s;
+#endif
+
+      if (s > (*pd++).calc1)
+        pd[-1].calc1 = s;   /* save maximum */
+      else
+      {
+        if (s < pd[-1].calc2)
+          pd[-1].calc2 = s;   /* save minimum */
+      }
+    }
+
+    py += 8;
+    pmik -= 32;
+  } /* channels */
+} /* createSubbandSamples4 */
+
+
+/******************************** calcPartials8 *****************************/
+/*  */
+/************************************************************************/
+static void calcPartials8(int* pAudio, const int* pFactors, int channels, int* pMatrix)
+{
+  int y0, y1, y2, y3, y4, y5, y6, y7;
+  int iter = 2;
+  int* px = pAudio;
+  const int* pc = pFactors;
+  int* py = pMatrix;
+
+  while (--channels >= 0)
+  {
+    while (--iter >= 0)
+    {
+      y0 = y1 = y2 = y3 = y4 = y5 = y6 = y7 = GUARD_PAR_HALFBIT;
+
+      y0 += *pc++ * px[0];
+      y1 += *pc++ * px[1];
+      y2 += *pc++ * px[2];
+      y3 += *pc++ * px[3];
+      y4 += *pc++ * px[4];
+      y5 += *pc++ * px[5];
+      y6 += *pc++ * px[6];
+      y7 += *pc++ * px[7];
+      px = (int*) px[8];  /* jump to next group */
+
+      y0 += *pc++ * px[0];
+      y1 += *pc++ * px[1];
+      y2 += *pc++ * px[2];
+      y3 += *pc++ * px[3];
+      y4 += *pc++ * px[4];
+      y5 += *pc++ * px[5];
+      y6 += *pc++ * px[6];
+      y7 += *pc++ * px[7];
+      px = (int*) px[8];
+
+      y0 += *pc++ * px[0];
+      y1 += *pc++ * px[1];
+      y2 += *pc++ * px[2];
+      y3 += *pc++ * px[3];
+      y4 += *pc++ * px[4];
+      y5 += *pc++ * px[5];
+      y6 += *pc++ * px[6];
+      y7 += *pc++ * px[7];
+      px = (int*) px[8];
+
+      y0 += *pc++ * px[0];
+      y1 += *pc++ * px[1];
+      y2 += *pc++ * px[2];
+      y3 += *pc++ * px[3];
+      y4 += *pc++ * px[4];
+      y5 += *pc++ * px[5];
+      y6 += *pc++ * px[6];
+      y7 += *pc++ * px[7];
+      px = (int*) px[8];
+
+      y0 += *pc++ * px[0];
+      y1 += *pc++ * px[1];
+      y2 += *pc++ * px[2];
+      y3 += *pc++ * px[3];
+      y4 += *pc++ * px[4];
+      y5 += *pc++ * px[5];
+      y6 += *pc++ * px[6];
+      y7 += *pc++ * px[7];
+      px += 9;
+      px = (int*) px[8];
+
+      *py++ = y0 >> (GUARD_PAR);
+      *py++ = y1 >> (GUARD_PAR);
+      *py++ = y2 >> (GUARD_PAR);
+      *py++ = y3 >> (GUARD_PAR);
+      *py++ = y4 >> (GUARD_PAR);
+      *py++ = y5 >> (GUARD_PAR);
+      *py++ = y6 >> (GUARD_PAR);
+      *py++ = y7 >> (GUARD_PAR);
+
+    }  /* iter */
+    iter = 2;
+    pc -= 80;
+    px = pAudio + 99;
+  }  /* channels */
+} /* calcPartials8 */
+
+
+/********************* createSubbandSamples8 *****************************/
+/* */
+/************************************************************************/
+static void createSubbandSamples8(int* pMatrix, const int* pFactors, int channels, int* pSamples, TSampleData* pSampleData)
+{
+  int i, s;
+  int* py = pMatrix;
+  const int* pmik = pFactors;
+#if defined F_SBC_ENC_REUSE_INPUT_BUFFER
+  short* ps = (short*) pSamples;
+#else
+  int* ps = pSamples;
+#endif
+  TSampleData* pd = pSampleData;
+
+  while (--channels >= 0)
+  {
+    for (i = 0; i < 8; i++)
+    {
+      s = GUARD_SUB_HALFBIT;
+      s += *pmik++ * py[0];
+      s += *pmik++ * py[1];
+      s += *pmik++ * py[2];
+      s += *pmik++ * py[3];
+      s += *pmik++ * py[4];
+      s += *pmik++ * py[5];
+      s += *pmik++ * py[6];
+      s += *pmik++ * py[7];
+      s += *pmik++ * py[8];
+      s += *pmik++ * py[9];
+      s += *pmik++ * py[10];
+      s += *pmik++ * py[11];
+      s += *pmik++ * py[12];
+      s += *pmik++ * py[13];
+      s += *pmik++ * py[14];
+      s += *pmik++ * py[15];
+      s >>= (GUARD_SUB);
+
+      /* save to sample buffer */
+#if defined F_SBC_ENC_REUSE_INPUT_BUFFER
+      limit(s);
+      *ps++ = (short) s;  /* save to sample buffer */
+#else
+      *ps++ = s;
+#endif
+
+      if (s > (*pd++).calc1)
+        pd[-1].calc1 = s;   /* save maximum */
+      else
+      {
+        if (s < pd[-1].calc2)
+          pd[-1].calc2 = s;   /* save minimum */
+      }
+    }
+
+    py += 16;
+    pmik -= 128;
+  } /* channels */
+} /* createSubbandSamples8 */
+
+
+/*************************** joinSubbands4 *********************************/
+/* */
+/************************************************************************/
+static void joinSubbands4(int* pSamples, TSBCData* pSBCData, TSampleData* pSampleData, unsigned char* pJoint)
+{
+  int join = 0;
+  int jointSamples[32];
+  TSampleData jointData[8];
+  int sb, blk, blkR, iL, iR;
+#if defined F_SBC_ENC_REUSE_INPUT_BUFFER
+  short* ps = (short*) pSamples;
+#else
+  int* ps = pSamples;
+#endif
+
+  /* initialize joint data */
+  for (sb = 7; sb >= 0; sb--)
+    jointData[sb].calc1 = jointData[sb].calc2 = 0;
+
+  /* iterate through subbands; the highest subband is never joint */
+  for (sb = 2; sb >= 0; sb--)
+  {
+    int sbR, mx, sf, sumN, sumJ;
+    sbR = sb + 4;
+    iL = sb + ((pSBCData->nrof_blocks) << 3);
+    iR = iL + 4;
+    for (blk = pSBCData->nrof_blocks - 1; blk >= 0; blk--)
+    {
+      /* calculate sum and difference signals */
+      iL -= 8;
+      iR -= 8;
+      blkR = blk + pSBCData->nrof_blocks;
+      jointSamples[blk] = (ps[iL] + ps[iR]) >> 1;
+      jointSamples[blkR] = (ps[iL] - ps[iR]) >> 1;
+
+      /* sum (left) channel maximum */
+      if (jointSamples[blk] > jointData[sb].calc1)
+        jointData[sb].calc1 = jointSamples[blk];
+      else
+      {
+        /* sum (left) channel minimum */
+        if (jointSamples[blk] < jointData[sb].calc2)
+          jointData[sb].calc2 = jointSamples[blk];
+      }
+
+      /* difference (right) channel maximum */
+      if (jointSamples[blkR] > jointData[sbR].calc1)
+        jointData[sbR].calc1 = jointSamples[blkR];
+      else
+      {
+        /* difference (right) channel minimum */
+        if (jointSamples[blkR] < jointData[sbR].calc2)
+          jointData[sbR].calc2 = jointSamples[blkR];
+      }
+    } /* for blk */
+
+    /* calculate scale factors */
+    mx = jointData[sb].calc1;
+    jointData[sb].calc2 *= -1;
+    if (jointData[sb].calc2 > mx)
+      mx = jointData[sb].calc2;
+    if (mx > 255) if (mx > 4095) if (mx > 16383) if (mx > 32767) sf = 15; else sf = 14; else if (mx > 8191) sf = 13; else sf = 12;
+    else if (mx > 1023) if (mx > 2047) sf = 11; else sf = 10; else if (mx > 511) sf = 9; else sf = 8;
+    else if (mx > 15) if (mx > 63) if (mx > 127) sf = 7; else sf = 6; else if (mx > 31) sf = 5; else sf = 4;
+    else if (mx > 3) if (mx > 7) sf = 3; else sf = 2; else if (mx > 1) sf = 1; else sf = 0; 
+    jointData[sb].scale_factor = sf;
+
+    mx = jointData[sbR].calc1;
+    jointData[sbR].calc2 *= -1;
+    if (jointData[sbR].calc2 > mx)
+      mx = jointData[sbR].calc2;
+    if (mx > 255) if (mx > 4095) if (mx > 16383) if (mx > 32767) sf = 15; else sf = 14; else if (mx > 8191) sf = 13; else sf = 12;
+    else if (mx > 1023) if (mx > 2047) sf = 11; else sf = 10; else if (mx > 511) sf = 9; else sf = 8;
+    else if (mx > 15) if (mx > 63) if (mx > 127) sf = 7; else sf = 6; else if (mx > 31) sf = 5; else sf = 4;
+    else if (mx > 3) if (mx > 7) sf = 3; else sf = 2; else if (mx > 1) sf = 1; else sf = 0; 
+    jointData[sbR].scale_factor = sf;
+
+    /* make joint decision */
+    sumN = pSampleData[sb].scale_factor + pSampleData[sbR].scale_factor;
+    sumJ = jointData[sb].scale_factor + jointData[sbR].scale_factor;
+    if (sumJ < sumN)
+    {
+      /* add joint bit */
+      join |= (0x80 >> sb);
+
+      /* replace samples */
+      iL = sb + ((pSBCData->nrof_blocks) << 3);
+      iR = iL + 4;
+      for (blk = pSBCData->nrof_blocks - 1; blk >= 0; blk--)
+      {
+        iL -= 8;
+        iR -= 8;
+#if defined F_SBC_ENC_REUSE_INPUT_BUFFER
+        ps[iL] = (short) jointSamples[blk];
+        ps[iR] = (short) jointSamples[blk + pSBCData->nrof_blocks];
+#else
+        ps[iL] = jointSamples[blk];
+        ps[iR] = jointSamples[blk + pSBCData->nrof_blocks];
+#endif
+      } /* for blk */
+
+      /* replace scale factors */
+      pSampleData[sb].scale_factor = jointData[sb].scale_factor;
+      pSampleData[sbR].scale_factor = jointData[sbR].scale_factor;
+    } /* if join */
+  } /* for subband */
+
+  *pJoint = join;
+}
+
+
+/*************************** joinSubbands8 *********************************/
+/* */
+/************************************************************************/
+static void joinSubbands8(int* pSamples, TSBCData* pSBCData, TSampleData* pSampleData, unsigned char* pJoint)
+{
+  int join = 0;
+  int jointSamples[32];
+  TSampleData jointData[16];
+  int sb, blk, blkR, iL, iR;
+#if defined F_SBC_ENC_REUSE_INPUT_BUFFER
+  short* ps = (short*) pSamples;
+#else
+  int* ps = pSamples;
+#endif
+
+  /* initialize joint data */
+  for (sb = 15; sb >= 0; sb--)
+    jointData[sb].calc1 = jointData[sb].calc2 = 0;
+
+  /* iterate through subbands; the highest subband is never joint */
+  for (sb = 6; sb >= 0; sb--)
+  {
+    int sbR, mx, sf, sumN, sumJ;
+    sbR = sb + 8;
+    iL = sb + ((pSBCData->nrof_blocks) << 4);
+    iR = iL + 8;
+    for (blk = pSBCData->nrof_blocks - 1; blk >= 0; blk--)
+    {
+      /* calculate sum and difference signals */
+      iL -= 16;
+      iR -= 16;
+      blkR = blk + pSBCData->nrof_blocks;
+      jointSamples[blk] = (ps[iL] + ps[iR]) >> 1;
+      jointSamples[blkR] = (ps[iL] - ps[iR]) >> 1;
+
+      /* sum (left) channel maximum */
+      if (jointSamples[blk] > jointData[sb].calc1)
+        jointData[sb].calc1 = jointSamples[blk];
+      else
+      {
+        /* sum (left) channel minimum */
+        if (jointSamples[blk] < jointData[sb].calc2)
+          jointData[sb].calc2 = jointSamples[blk];
+      }
+
+      /* difference (right) channel maximum */
+      if (jointSamples[blkR] > jointData[sbR].calc1)
+        jointData[sbR].calc1 = jointSamples[blkR];
+      else
+      {
+        /* difference (right) channel minimum */
+        if (jointSamples[blkR] < jointData[sbR].calc2)
+          jointData[sbR].calc2 = jointSamples[blkR];
+      }
+    } /* for blk */
+
+    /* calculate scale factors */
+    mx = jointData[sb].calc1;
+    jointData[sb].calc2 *= -1;
+    if (jointData[sb].calc2 > mx)
+      mx = jointData[sb].calc2;
+    if (mx > 255) if (mx > 4095) if (mx > 16383) if (mx > 32767) sf = 15; else sf = 14; else if (mx > 8191) sf = 13; else sf = 12;
+    else if (mx > 1023) if (mx > 2047) sf = 11; else sf = 10; else if (mx > 511) sf = 9; else sf = 8;
+    else if (mx > 15) if (mx > 63) if (mx > 127) sf = 7; else sf = 6; else if (mx > 31) sf = 5; else sf = 4;
+    else if (mx > 3) if (mx > 7) sf = 3; else sf = 2; else if (mx > 1) sf = 1; else sf = 0; 
+    jointData[sb].scale_factor = sf;
+
+    mx = jointData[sbR].calc1;
+    jointData[sbR].calc2 *= -1;
+    if (jointData[sbR].calc2 > mx)
+      mx = jointData[sbR].calc2;
+    if (mx > 255) if (mx > 4095) if (mx > 16383) if (mx > 32767) sf = 15; else sf = 14; else if (mx > 8191) sf = 13; else sf = 12;
+    else if (mx > 1023) if (mx > 2047) sf = 11; else sf = 10; else if (mx > 511) sf = 9; else sf = 8;
+    else if (mx > 15) if (mx > 63) if (mx > 127) sf = 7; else sf = 6; else if (mx > 31) sf = 5; else sf = 4;
+    else if (mx > 3) if (mx > 7) sf = 3; else sf = 2; else if (mx > 1) sf = 1; else sf = 0; 
+    jointData[sbR].scale_factor = sf;
+
+    /* make joint decision */
+    sumN = pSampleData[sb].scale_factor + pSampleData[sbR].scale_factor;
+    sumJ = jointData[sb].scale_factor + jointData[sbR].scale_factor;
+    if (sumJ < sumN)
+    {
+      /* add join bit */
+      join |= (1 << (7 - sb));
+
+      /* replace samples */
+      iL = sb + ((pSBCData->nrof_blocks) << 4);
+      iR = iL + 8;
+      for (blk = pSBCData->nrof_blocks - 1; blk >= 0; blk--)
+      {
+        iL -= 16;
+        iR -= 16;
+#if defined F_SBC_ENC_REUSE_INPUT_BUFFER
+        ps[iL] = (short) jointSamples[blk];
+        ps[iR] = (short) jointSamples[blk + pSBCData->nrof_blocks];
+#else
+        ps[iL] = jointSamples[blk];
+        ps[iR] = jointSamples[blk + pSBCData->nrof_blocks];
+#endif
+      }
+
+      /* replace scale factors */
+      pSampleData[sb].scale_factor = jointData[sb].scale_factor;
+      pSampleData[sbR].scale_factor = jointData[sbR].scale_factor;
+    } /* if join */
+  } /* for subband */
+
+  *pJoint = join;
+}
+
+
+/******************************* createCRC *******************************/
+/* */
+/************************************************************************/
+static void createCRC(unsigned char* pOutput)
+{
+  int bits = 0;
+  unsigned char data[11];
+  TSBCData* pSBCData = &SBCData;
+  unsigned crc = 0x0f;
+  int i;
+  unsigned octet;
+  int len = 2;
+
+  /* copy relevant data to local array */
+  memcpy(data, pOutput + 1, len); /* first two bytes */
+  if (pSBCData->nrof_channels == 2)
+    len *= 2;
+  if (pSBCData->nrof_subbands == 8)
+    len *= 2;
+  if (pSBCData->channel_mode == SBC_MODE_JOINT)
+    len += 1;
+  memcpy(data + 2, pOutput + 4, len); /* joint and scale bytes */
+  bits = len * 8; /* joint and scale bits */
+  if (len == 5)
+    bits -= 4;  /* only 4 joint bits for 4 subbands */
+  bits += 16;  /* header bits */
+
+  for (i = 0; i < bits / 8; i++)
+    crc = crcTable[crc ^ data[i]];
+
+  octet = data[i];
+  for (i = 0; i < bits % 8; i++) 
+  {
+    char bit = ((octet ^ crc) & 0x80) >> 7;
+    crc = ((crc & 0x7f) << 1) ^ (bit ? 0x1d : 0);
+    octet = octet << 1;
+  }
+
+  pOutput[3] = (unsigned char) crc;
+}
+
+
+/*************************** computeBits *********************************/
+/* this implementation has been taken directly from the specification */
+/************************************************************************/
+static void computeBits(void)
+{
+  int loudness;
+  int max_bitneed = 0;
+  unsigned ch;
+  unsigned sb;
+  int bitneed[SBC_MAX_CHANNELS][SBC_MAX_SUBBANDS];
+  TSBCData* pSBCData= &SBCData;
+
+  if (pSBCData->channel_mode == SBC_MODE_MONO || pSBCData->channel_mode == SBC_MODE_DUAL)
+  {
+    for (ch=0; ch < pSBCData->nrof_channels; ch++)
+    {
+      /* Mono and Dual_Channel Bit Allocation */
+      if (pSBCData->allocation_method == SBC_ALLOCSNR)
+      {
+        for (sb = 0; sb < pSBCData->nrof_subbands; sb++)
+        {
+          int b = bitneed[ch][sb] = sampleData[ch][sb].scale_factor;
+          if (max_bitneed < b)
+            max_bitneed = b;
+        }
+      }
+      else
+      {
+        for (sb = 0;sb < pSBCData->nrof_subbands; sb++)
+        {
+          if (sampleData[ch][sb].scale_factor == 0)
+          {
+            int b = bitneed[ch][sb] = -5;
+            if (max_bitneed < b)
+              max_bitneed = b;
+          }
+          else
+          {
+            if (pSBCData->nrof_subbands == 4)
+            {
+              loudness = sampleData[ch][sb].scale_factor - offset4[pSBCData->sampling_frequency][sb];
+            }
+            else
+            {
+              loudness = sampleData[ch][sb].scale_factor - offset8[pSBCData->sampling_frequency][sb];
+            }
+            if (loudness > 0)
+            {
+              bitneed[ch][sb] = loudness / 2;
+              if (max_bitneed < loudness / 2)
+                max_bitneed = loudness / 2;
+
+            }
+            else
+            {
+              bitneed[ch][sb] = loudness;
+              if (max_bitneed < loudness)
+                max_bitneed = loudness;
+            }
+          }
+        }
+      }
+
+      /* Next an iterative process finds out how many bitslices fit into the bitpool */
+      {
+        int bitcount = 0;
+        int slicecount = 0;
+        int bitslice = max_bitneed + 1; /* init just above the largest sf */
+        do
+        {
+          bitslice--;
+          bitcount += slicecount;
+          slicecount = 0;
+          for (sb = 0;sb < pSBCData->nrof_subbands; sb++)
+          {
+            if((bitneed[ch][sb] > bitslice + 1) && (bitneed[ch][sb] < bitslice + 16))
+              slicecount++;
+            else if(bitneed[ch][sb] == bitslice + 1)
+              slicecount += 2;
+          }
+        } while (bitcount + slicecount < pSBCData->bitpool);
+
+        if (bitcount + slicecount == pSBCData->bitpool)
+        {
+          bitcount += slicecount;
+          bitslice--;
+        }
+
+        /* Thereafter, bits are distributed until the last bitslice is reached */
+        for (sb=0;sb<pSBCData->nrof_subbands;sb++)
+        {
+          if(bitneed[ch][sb]<bitslice+2)
+            sampleData[ch][sb].bits=0;
+          else
+            sampleData[ch][sb].bits=min(bitneed[ch][sb]-bitslice,16);
+        }
+
+        /* The remaining bits are allocated starting at subband 0 */
+        sb=0;
+        while(bitcount < pSBCData->bitpool && sb < pSBCData->nrof_subbands)
+        {
+          if((sampleData[ch][sb].bits>=2)&&(sampleData[ch][sb].bits<16))
+          {
+            sampleData[ch][sb].bits++; bitcount++;
+          }
+          else
+            if((bitneed[ch][sb]==bitslice+1)&&(pSBCData->bitpool>bitcount+1))
+            {
+              sampleData[ch][sb].bits=2; bitcount+=2;
+            }
+            sb++;
+        }
+        sb=0;
+        while(bitcount < pSBCData->bitpool && sb < pSBCData->nrof_subbands)
+        {
+          if (sampleData[ch][sb].bits < 16)
+          {
+            sampleData[ch][sb].bits++;
+            bitcount++;
+          }
+          sb++;
+        }
+      }
+    } /* for ch */
+  } /* MONO and DUAL */
+  else
+  {
+    /* Stereo and Joint_Stereo Bit Allocation */
+    if (pSBCData->allocation_method == SBC_ALLOCSNR)
+    {
+      for (ch = 0;ch < 2; ch++)
+      {
+        for (sb = 0; sb < pSBCData->nrof_subbands; sb++)
+        {
+          int b = bitneed[ch][sb] = sampleData[ch][sb].scale_factor;
+          if (b > max_bitneed)
+            max_bitneed = b;
+        }
+      }
+    }
+    else
+    {
+      for (ch = 0;ch < 2; ch++)
+      {
+        for (sb=0;sb<pSBCData->nrof_subbands;sb++)
+        {
+          if (sampleData[ch][sb].scale_factor == 0)
+          {
+            bitneed[ch][sb] = -5;
+            if (max_bitneed < -5)
+              max_bitneed = -5;
+          }
+          else
+          {
+            if (pSBCData->nrof_subbands == 4)
+            {
+              loudness = sampleData[ch][sb].scale_factor - offset4[pSBCData->sampling_frequency][sb];
+            }
+            else
+            {
+              loudness = sampleData[ch][sb].scale_factor - offset8[pSBCData->sampling_frequency][sb];
+            }
+            if (loudness > 0)
+            {
+              bitneed[ch][sb] = (loudness >> 1);
+              if ((loudness >> 1) > max_bitneed)
+                max_bitneed = (loudness >> 1);
+            }
+            else
+            {
+              bitneed[ch][sb] = loudness;
+              if (max_bitneed < loudness)
+                max_bitneed = loudness;
+            }
+          }
+        }
+      }
+    }    
+    /* Next an iterative process finds out how many bitslices fit into the bitpool */
+    computeSlicesInPoolStereo(max_bitneed, bitneed);
+  } /* Joint and Stereo Allocation */
+} /* computeBits */
+
+
+/*************************** computeSlicesInPoolStereo ******************/
+/* An iterative process finds out how many bitslices fit into the bitpool */
+/* The result is stored in the global array "bits" */
+/* this implementation has been taken directly from the specification */
+/************************************************************************/
+static void computeSlicesInPoolStereo( int max_bitneed, int bitneed[SBC_MAX_CHANNELS][SBC_MAX_SUBBANDS])
+{
+  static int n = 0;
+
+  int bitcount    = 0;
+  int slicecount  = 0;
+  int bitslice    = max_bitneed + 1; /* init just above the largest sf */
+  int sb, ch;
+  TSBCData* pSBCData= &SBCData;
+  int bitpool   = pSBCData->bitpool;
+  int nrof_subbands = pSBCData->nrof_subbands;
+
+  int* bn0 = bitneed[0];
+  int* bn1 = bitneed[1];
+
+  do
+  {
+    bitcount += slicecount;
+    slicecount = 0;
+
+    sb = nrof_subbands - 1;
+    do
+    {
+      int bitn;
+      /* channel 0 */
+      bitn = bn0[sb];
+      if((bitn >= bitslice) && (bitn < bitslice + 15))
+        slicecount++;
+      if(bitn == bitslice)
+        slicecount++;
+
+      /* channel 1 */
+      bitn = bn1[sb];
+      if((bitn >= bitslice) && (bitn < bitslice + 15))
+        slicecount++;
+      if(bitn == bitslice)
+        slicecount++;
+
+    } while (sb--);
+    bitslice--;
+  } while (bitcount + slicecount < bitpool);
+
+  if (bitcount + slicecount == bitpool)
+  {
+    bitcount += slicecount;
+    bitslice--;
+  }
+
+  /* Thereafter bits are distributed until the last bitslice is reached */
+  for (ch = 0; ch < 2; ch++)
+  {
+    for (sb=0;sb<nrof_subbands;sb++) 
+    {
+      if(bitneed[ch][sb] < bitslice + 2) 
+        sampleData[ch][sb].bits = 0; 
+      else 
+        sampleData[ch][sb].bits = min(bitneed[ch][sb] - bitslice, 16); 
+    }
+  }
+
+  /* The remaining bits are allocated starting with subband 0 of the first channel */
+  {
+    unsigned ch = 0;
+    sb=0;
+    while(bitcount < pSBCData->bitpool && sb < (int)pSBCData->nrof_subbands)
+    {
+      if((sampleData[ch][sb].bits>=2)&&(sampleData[ch][sb].bits<16))
+      {
+        sampleData[ch][sb].bits++; bitcount++;
+      }
+      else if((bitneed[ch][sb]==bitslice+1)&&(pSBCData->bitpool>bitcount+1))
+      {
+        sampleData[ch][sb].bits=2; bitcount+=2;
+      }
+      if (ch == 1)
+      {
+        ch = 0;
+        sb++;
+      }
+      else
+      {
+        ch = 1;
+      }
+    }
+    ch=0;
+    sb=0;
+    while(bitcount < pSBCData->bitpool && sb < (int)pSBCData->nrof_subbands)
+    {
+      if (sampleData[ch][sb].bits < 16)
+      {
+        sampleData[ch][sb].bits++;
+        bitcount++;
+      }
+      if (ch == 1)
+      {
+        ch = 0;
+        sb++;
+      }
+      else
+      {
+        ch = 1;
+      }
+    }
+  }
+}
+
+#if defined F_SBC_DEBUG_FILE
+/************************************************************************/
+/* various debug helper functions */
+/************************************************************************/
+static void dumpXTab(int* pTab)
+{
+  int i;
+  int* px = pTab;
+
+  printf("x dump\n");
+  for (i = 0; i < 180; i++)
+  {
+    if ((i % 9) == 8)
+      continue;
+    printf("x[%d] = val %4d\n", i,  px[i]);
+  }
+  printf("\n");
+}
+
+static void dumpYTab(int* pTab)
+{
+  int i;
+  int* py = pTab;
+
+  printf("y dump\n");
+  for (i = 0; i < 32; i++)
+    printf("value of y[%2d] = %6d\n", i, py[i]);
+  printf("\n");
+}
+
+static void dumpSampleData(TSampleData* pTab)
+{
+  int i;
+  TSampleData* pd = pTab;
+
+  printf("sample data dump\n");
+  for (i = 0; i < 16; i++)
+    printf("scale_factor[ ][ ] = %2d   bits[][] = %2d   max[][] = %2d\n", pd[i].scale_factor, pd[i].bits, pd[i].calc1);
+  printf("\n");
+}
+
+static void dumpInputBuffer(short* pBuffer, int index)
+{
+  int i;
+  short* pb = pBuffer;
+
+  printf("in buffer dump\n");
+  for (i = index; i < index + 16; i++)
+    printf("in[%2d] = %6d\n", i - index, pb[i]);
+  printf("\n");
+}
+#endif
+
+#endif /*F_BT_MPA_A2DP_SOURCE*/
diff --git a/rtkbt/addon/vr_bee1_hidraw_daemon/hidraw/voice_hidraw.c b/rtkbt/addon/vr_bee1_hidraw_daemon/hidraw/voice_hidraw.c
new file mode 100755
index 0000000..309e47c
--- /dev/null
+++ b/rtkbt/addon/vr_bee1_hidraw_daemon/hidraw/voice_hidraw.c
@@ -0,0 +1,1138 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdint.h>
+#include <dirent.h>
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#include <sys/inotify.h>
+#include <sys/poll.h>
+#include <linux/input.h>
+#include <linux/hidraw.h>
+#include <errno.h>
+#include <time.h>
+#include <unistd.h>
+
+#include <pthread.h>
+
+
+#include "voice_hidraw.h"
+#include "bee_settings.h"
+#include "get_voice_app.h"
+#include "sbc.h"
+#include "voice_uipc.h"
+#include "config.h"
+
+#define RAW_DATA_PATH "/data/vr/raw_data"
+static int file_counter = 0;
+int raw_fd;
+int gSocket_Running = 0;
+int gTarget_fd = 0;
+
+
+
+typedef struct {
+    int vid;
+    int pid;
+    int vers;
+    unsigned char voice_key_reportID;
+    unsigned char voice_data_reportID;
+    unsigned char voice_cmd_reportID;
+    int voice_keypress_data_len;
+    unsigned char *voice_keypress_data;
+    int voice_keyrelease_data_len;
+    unsigned char *voice_keyrelease_data;
+    int decode_type;
+    int data_mask;
+    int autocmd;
+    
+}VOICE_SETTING;
+
+static struct pollfd *ufds;
+static char **device_names;
+static int nfds;
+
+static int *unused_bt_hid_fds;
+static int nunusedfds;
+static char **unused_device_names;
+
+
+VOICE_SETTING global_voice_setting;
+pthread_mutex_t mutex_voice_settings;
+
+int frame_counter = 0;
+
+int set_rcu_info(int vid, int pid, int vers) {
+    pthread_mutex_lock(&mutex_voice_settings);
+    if(vid != -1)
+        global_voice_setting.vid = vid;
+
+    if(pid != -1)
+        global_voice_setting.pid = pid;
+
+    if(vers != -1)
+        global_voice_setting.vers = vers;
+
+    pthread_mutex_unlock(&mutex_voice_settings);
+
+    return 0;
+}
+
+int set_voice_data_reportID(unsigned char reportID) {
+    pthread_mutex_lock(&mutex_voice_settings);
+    global_voice_setting.voice_data_reportID = reportID;
+    pthread_mutex_unlock(&mutex_voice_settings);
+    return 0;
+}
+
+int set_voice_cmd_reportID(unsigned char reportID) {
+    pthread_mutex_lock(&mutex_voice_settings);
+    global_voice_setting.voice_cmd_reportID = reportID;
+    pthread_mutex_unlock(&mutex_voice_settings);
+    return 0;
+}
+
+int set_voice_key_reportID(unsigned char reportID) {
+    pthread_mutex_lock(&mutex_voice_settings);
+    global_voice_setting.voice_key_reportID = reportID;
+    pthread_mutex_unlock(&mutex_voice_settings);
+    return 0;
+}
+
+int set_voice_keypress_data(int len, unsigned char *data) {
+    if(len > 0) {
+        pthread_mutex_lock(&mutex_voice_settings);
+        if(global_voice_setting.voice_keypress_data != NULL) {
+            if(global_voice_setting.voice_keypress_data_len < len) {
+
+                unsigned char *buf = (unsigned char *)realloc(global_voice_setting.voice_keypress_data, len);
+                if(buf == NULL) {
+                    //log
+                    pthread_mutex_unlock(&mutex_voice_settings);
+                    error("Failed to realloc for voice_keypress_data");
+                    return -1;
+                }else {
+                    global_voice_setting.voice_keypress_data = buf;
+                }
+            }
+        }else {
+            global_voice_setting.voice_keypress_data = (unsigned char *)malloc(len);
+            if(global_voice_setting.voice_keypress_data == NULL) {
+                //log
+                pthread_mutex_unlock(&mutex_voice_settings);
+                error("Failed to malloc for voice_keypress_data");
+                return -2;
+            }
+        }
+
+        memcpy(global_voice_setting.voice_keypress_data, data, len);
+        global_voice_setting.voice_keypress_data_len = len;
+        pthread_mutex_unlock(&mutex_voice_settings);
+        return 0;
+    }else {
+        warn("len is negative for voice_keypress_data");
+        return -3;
+    }
+}
+
+int set_voice_keyrelease_data(int len, unsigned char *data) {
+    if(len > 0) {
+        pthread_mutex_lock(&mutex_voice_settings);
+        if(global_voice_setting.voice_keyrelease_data != NULL) {
+            if(global_voice_setting.voice_keyrelease_data_len < len) {
+                unsigned char *buf = (unsigned char *)realloc(global_voice_setting.voice_keyrelease_data, len);
+                if(buf == NULL) {
+                    //log
+                    pthread_mutex_unlock(&mutex_voice_settings);
+                    error("Failed to realloc for voice_keypress_data");
+                    return -1;
+                }else {
+                    global_voice_setting.voice_keyrelease_data = buf;
+                }
+            }
+        }else {
+            global_voice_setting.voice_keyrelease_data = (unsigned char *)malloc(len);
+            if(global_voice_setting.voice_keyrelease_data == NULL) {
+                pthread_mutex_unlock(&mutex_voice_settings);
+                error("Failed to malloc for voice_keyrelease_data");
+                return -2;
+            }
+        }
+
+        memcpy(global_voice_setting.voice_keyrelease_data, data, len);
+        global_voice_setting.voice_keyrelease_data_len = len;
+        pthread_mutex_unlock(&mutex_voice_settings);
+        return 0;
+    }else {
+        //log
+        warn("len is negative for voice_keyrelease_data");
+        return -3;
+    }
+}
+
+int set_encode_type(int type) {
+    if(type <= DECODE_TYPE_MAX) {
+        pthread_mutex_lock(&mutex_voice_settings);
+        global_voice_setting.decode_type = type;
+        pthread_mutex_unlock(&mutex_voice_settings);
+        return 0;
+    }else {
+        warn("Unknown Decode Type !!!");
+        return -1;
+    }
+}
+
+int data_type_mask(int mask) {
+    //log
+    debug("Set Data Type Mask 0x%04x", mask);
+
+    pthread_mutex_lock(&mutex_voice_settings);
+    
+    if(mask & DATA_TYPE_MASK_RAW) {
+        global_voice_setting.data_mask = DATA_TYPE_MASK_RAW;
+    }else {
+        if(mask & DATA_TYPE_MASK_VOICE) {
+            global_voice_setting.data_mask |= DATA_TYPE_MASK_VOICE;
+        }
+    }
+
+    pthread_mutex_unlock(&mutex_voice_settings);
+    return 0;
+}
+
+int set_auto_cmd(int autocmd) {
+    pthread_mutex_lock(&mutex_voice_settings);
+    if(autocmd == 1) {
+        global_voice_setting.autocmd = AUTOCMD_AUTO;
+    }else if(autocmd == 2){
+        global_voice_setting.autocmd = AUTOCMD_NONE;
+    }
+    pthread_mutex_unlock(&mutex_voice_settings);
+
+    return 0;
+}
+
+
+
+int voice_msbc_init() {
+
+    int ivalue, i;
+   
+    voice_loadconfig(CONFIG_PATH);
+
+    pthread_mutex_lock(&mutex_voice_settings);
+    
+    memset(&global_voice_setting, 0, sizeof(global_voice_setting));
+
+    ivalue = voice_get_int_config(CONFIG_GROUP_RCU, CONFIG_ITEM_RCU_VID);
+    if(ivalue >= 0) {
+        global_voice_setting.vid = ivalue;
+        ALOGD("use config VID: %04x", global_voice_setting.vid);
+    } else {
+        global_voice_setting.vid = BEE_RCU_VID;
+        ALOGD("use default VID: %04x", global_voice_setting.vid);
+    }
+
+    ivalue = voice_get_int_config(CONFIG_GROUP_RCU, CONFIG_ITEM_RCU_PID);
+    if(ivalue >= 0) {
+        global_voice_setting.pid = ivalue;
+        ALOGD("use config PID: %04x", global_voice_setting.pid);
+    } else {
+        global_voice_setting.pid = BEE_RCU_PID;
+        ALOGD("use default PID: %04x", global_voice_setting.pid);
+    }
+
+    ivalue = voice_get_int_config(CONFIG_GROUP_RCU, CONFIG_ITEM_RCU_VER);
+    if(ivalue >= 0) {
+        global_voice_setting.vers = ivalue;
+        ALOGD("use config version: %04x", global_voice_setting.vers);
+    } else {
+        global_voice_setting.vers = BEE_RCU_VERSION;
+        ALOGD("use default VERSION: %04x", global_voice_setting.vers);
+    }
+
+    ivalue = voice_get_int_config(CONFIG_GROUP_REPORTID, CONFIG_ITEM_REPORTID_KEY);
+    if(ivalue > 0) {
+        global_voice_setting.voice_key_reportID = ivalue & 0xff;
+        ALOGD("use config key report id: %02x", global_voice_setting.voice_key_reportID);
+    } else {
+        global_voice_setting.voice_key_reportID = BEE_VOICEKEY_REPORTID;
+        ALOGD("use default key report id: %02x", global_voice_setting.voice_key_reportID);
+    }
+    
+
+    ivalue = voice_get_int_config(CONFIG_GROUP_REPORTID, CONFIG_ITEM_REPORTID_DATA);
+    if(ivalue > 0) {
+        global_voice_setting.voice_data_reportID = ivalue & 0xff;
+        ALOGD("use config data report id: %02x", global_voice_setting.voice_data_reportID);
+    } else {
+        global_voice_setting.voice_data_reportID = BEE_MSBC_VOICEDATA_REPORTID;
+        ALOGD("use default data report id: %02x", global_voice_setting.voice_data_reportID);
+    }
+
+    ivalue = voice_get_int_config(CONFIG_GROUP_REPORTID, CONFIG_ITEM_REPORTID_CMD);
+    if(ivalue > 0) {
+        global_voice_setting.voice_cmd_reportID = ivalue & 0xff;
+        ALOGD("use config cmd report id: %02x", global_voice_setting.voice_cmd_reportID);
+    } else {
+        global_voice_setting.voice_cmd_reportID = BEE_MSBC_VOICECMD_REPORTID;
+        ALOGD("use default cmd report id: %02x", global_voice_setting.voice_cmd_reportID);
+    }
+
+    ivalue = voice_get_int_config(CONFIG_GROUP_REPORTVALUE, CONFIG_ITEM_REPORTVALUE_KEYDOWNLEN);
+    if(ivalue > 0) {
+        global_voice_setting.voice_keypress_data_len = ivalue;
+        ALOGD("use config keydown len: %d", global_voice_setting.voice_keypress_data_len);
+    } else {
+        global_voice_setting.voice_keypress_data_len = BEE_VOICEKEY_LEN;
+        ALOGD("use default keydown len: %d", global_voice_setting.voice_keypress_data_len);
+    }
+
+    global_voice_setting.voice_keypress_data = (unsigned char *)malloc(global_voice_setting.voice_keypress_data_len);
+    if(global_voice_setting.voice_keypress_data == NULL) {
+        //log
+        error("failed to get buf for keydown");
+        pthread_mutex_unlock(&mutex_voice_settings);
+        return -1;
+    }else {
+        if(ivalue > 0) {
+            if(voice_get_byte_array_config(CONFIG_GROUP_REPORTVALUE, CONFIG_ITEM_REPORTVALUE_KEYDOWN,
+                global_voice_setting.voice_keypress_data, global_voice_setting.voice_keypress_data_len)
+                != global_voice_setting.voice_keypress_data_len) {
+                
+                global_voice_setting.voice_keypress_data_len = BEE_VOICEKEY_LEN;
+                if(ivalue < BEE_VOICEKEY_LEN) {
+                    global_voice_setting.voice_keypress_data = (unsigned char *)realloc(global_voice_setting.voice_keypress_data, BEE_VOICEKEY_LEN);
+                    if(global_voice_setting.voice_keypress_data == NULL) {
+                        error("failed to realloc buf for keydown");
+                        pthread_mutex_unlock(&mutex_voice_settings);
+                        return -1;
+                    }
+                }
+                memcpy(global_voice_setting.voice_keypress_data, BEE_VOICE_KEYDOWN_DATA, global_voice_setting.voice_keypress_data_len);
+                ALOGD("use default keydown data");
+            }
+        }else {
+            memcpy(global_voice_setting.voice_keypress_data, BEE_VOICE_KEYDOWN_DATA, global_voice_setting.voice_keypress_data_len);
+            ALOGD("use default keydown data");
+        }
+        ALOGD("key down data:");
+        for(i = 0; i < global_voice_setting.voice_keypress_data_len; i++) {
+            ALOGD("data[%d] = %02x", i, *(global_voice_setting.voice_keypress_data + i));
+        }
+    }
+
+    ivalue = voice_get_int_config(CONFIG_GROUP_REPORTVALUE, CONFIG_ITEM_REPORTVALUE_KEYUPLEN);
+    if(ivalue > 0) {
+        global_voice_setting.voice_keyrelease_data_len = ivalue;
+        ALOGD("use config keyup len: %d", global_voice_setting.voice_keyrelease_data_len);
+    } else {
+        global_voice_setting.voice_keyrelease_data_len = BEE_VOICEKEY_LEN;
+        ALOGD("use default keyup len: %d", global_voice_setting.voice_keyrelease_data_len);
+    }
+
+    global_voice_setting.voice_keyrelease_data = (unsigned char *)malloc(global_voice_setting.voice_keyrelease_data_len);
+    if(global_voice_setting.voice_keyrelease_data == NULL) {
+        //log
+        error("failed to get buf for keyup");
+        pthread_mutex_unlock(&mutex_voice_settings);
+        return -1;
+    }else {
+        if(ivalue > 0) {
+            if(voice_get_byte_array_config(CONFIG_GROUP_REPORTVALUE, CONFIG_ITEM_REPORTVALUE_KEYUP,
+                global_voice_setting.voice_keyrelease_data, global_voice_setting.voice_keyrelease_data_len)
+                != global_voice_setting.voice_keyrelease_data_len) {
+                
+                global_voice_setting.voice_keyrelease_data_len = BEE_VOICEKEY_LEN;
+                if(ivalue < BEE_VOICEKEY_LEN) {
+                    global_voice_setting.voice_keyrelease_data = (unsigned char *)realloc(global_voice_setting.voice_keyrelease_data, BEE_VOICEKEY_LEN);
+                    if(global_voice_setting.voice_keyrelease_data == NULL) {
+                        error("failed to realloc buf for keyup");
+                        pthread_mutex_unlock(&mutex_voice_settings);
+                        return -1;
+                    }
+                }
+                memcpy(global_voice_setting.voice_keyrelease_data, BEE_VOICE_KEYUP_DATA, global_voice_setting.voice_keyrelease_data_len);
+                ALOGD("use default keyup data");
+            }
+        }else {
+            memcpy(global_voice_setting.voice_keyrelease_data, BEE_VOICE_KEYUP_DATA, global_voice_setting.voice_keyrelease_data_len);
+            ALOGD("use default keyup data");
+        }
+        ALOGD("key up data:");
+        for(i = 0; i < global_voice_setting.voice_keyrelease_data_len; i++) {
+            ALOGD("data[%d] = %02x", i, *(global_voice_setting.voice_keyrelease_data + i));
+        }
+    }
+
+    ivalue = voice_get_int_config(CONFIG_GROUP_SETTINGS, CONFIG_ITEM_SETTINGS_DECODETYPE);
+    if(ivalue > 0) {
+        global_voice_setting.decode_type = ivalue;
+        ALOGD("use config decode type: %d", global_voice_setting.decode_type);
+    } else {
+        global_voice_setting.decode_type = DECODE_TYPE_MSBC;
+        ALOGD("use default decode type: %d", global_voice_setting.decode_type);
+    }
+
+    ivalue = voice_get_int_config(CONFIG_GROUP_SETTINGS, CONFIG_ITEM_SETTINGS_DATAMASK);
+    if(ivalue > 0) {
+        global_voice_setting.data_mask = ivalue;
+        ALOGD("use config data mask: %d", global_voice_setting.data_mask);
+    } else {
+        global_voice_setting.data_mask = DATA_TYPE_MASK_VOICE;
+        ALOGD("use default decode type: %d", global_voice_setting.data_mask);
+    }
+
+    ivalue = voice_get_int_config(CONFIG_GROUP_SETTINGS, CONFIG_ITEM_SETTINGS_AUTOCMD);
+    if(ivalue > 0) {
+        global_voice_setting.autocmd = ivalue;
+        ALOGD("use config decode type: %d", global_voice_setting.autocmd);
+    } else {
+        global_voice_setting.autocmd = AUTOCMD_AUTO;
+        ALOGD("use default decode type: %d", global_voice_setting.autocmd);
+    }
+
+    pthread_mutex_unlock(&mutex_voice_settings);
+    voice_conf_exit();
+    return 0;
+}
+
+void voice_open_store_file()
+{
+    char record_name[50] = {0}; 
+    sprintf(record_name, "%s%d", RAW_DATA_PATH, file_counter);
+
+    raw_fd =  open (record_name, O_WRONLY | O_CREAT |O_TRUNC, 0644);
+
+    if(raw_fd < 0)
+    {
+        ALOGE("can't open record file:%s ", record_name);
+    }
+
+
+	return;
+}
+
+int voice_write_decode_buf(uint8* pu_decode, ssize_t len)
+{
+    if (raw_fd > 0)
+    {
+        write (raw_fd, pu_decode, len);
+        return 0;
+    }
+    return -1;
+}
+
+
+/**********************************************
+*
+*   hidraw node related
+*
+***********************************************/
+const char *bus_str(int bus){
+    switch (bus) {
+        case BUS_USB:
+            return "USB";
+            
+        case BUS_HIL:
+            return "HIL";
+            
+        case BUS_BLUETOOTH:
+            return "Bluetooth";
+
+        case BUS_VIRTUAL:
+            return "Virtual";
+                
+        default:
+            return "Other";
+    }
+}
+    
+static int get_hidraw_info(int fd)
+{
+    int i, res, desc_size = 0;
+    char buf[256];
+    struct hidraw_report_descriptor rpt_desc;
+    struct hidraw_devinfo info;
+    
+    memset(&rpt_desc, 0x0, sizeof(rpt_desc));
+    memset(&info, 0x0, sizeof(info));
+    memset(buf, 0x0, sizeof(buf));
+    debug("-----------------------------------------------\n");
+    
+    /* Get Raw Name */
+    res = ioctl(fd, HIDIOCGRAWNAME(256), buf);
+    if (res < 0)
+        perror("HIDIOCGRAWNAME");
+    else
+        debug("Raw Name: %s\n", buf);
+    /* Get Physical Location */
+    res = ioctl(fd, HIDIOCGRAWPHYS(256), buf);
+    if (res < 0)
+        perror("HIDIOCGRAWPHYS");
+    else
+        debug("Raw Phys: %s\n", buf);
+    /* Get Raw Info */
+    res = ioctl(fd, HIDIOCGRAWINFO, &info);
+    if (res < 0) {
+        perror("HIDIOCGRAWINFO");
+    } else {
+        debug("Raw Info:");
+        debug(" bustype: %d (%s)", info.bustype, bus_str(info.bustype));
+        debug(" vendor: 0x%04x", info.vendor);
+        debug(" product: 0x%04x\n", info.product);
+    }
+    /* Get Report Descriptor Size */
+    res = ioctl(fd, HIDIOCGRDESCSIZE, &desc_size);
+    if (res < 0)
+       perror("HIDIOCGRDESCSIZE");
+    else
+        debug("Report Descriptor Size: %d\n", desc_size);
+    /* Get Report Descriptor */
+    rpt_desc.size = desc_size;
+    res = ioctl(fd, HIDIOCGRDESC, &rpt_desc);
+    if (res < 0) {
+        perror("HIDIOCGRDESC");
+    } else {
+        debug("Report Descriptor:");
+        for (i = 0; i < rpt_desc.size; i++)
+        {
+            if((i%16)==0)
+                debug("\n");
+            debug("%02x ", rpt_desc.value[i]);
+        }
+        debug("\n");
+    }
+    info("-----------------------------------------------\n");
+    
+    return 0;
+}
+
+static int send_message(int fd, unsigned char * buf, int len)
+{
+    int res = 0;
+    res = write(fd, buf, len);
+    debug("send_message res=%d\n",res);
+    return res;
+}
+
+static void process_voice_data(unsigned char reportID, unsigned char *buf, int len) {
+    int ret = -1;
+    int offset = 0;
+    int i;
+    int decode_len = 0;
+
+    unsigned char output_buf[1024] = {0x00};
+
+    //debug("reportID=%d, decode_type=%d, global_reportID=%d, len=%d", 
+        //reportID, global_voice_setting.decode_type, global_voice_setting.voice_data_reportID, len);
+
+    if(global_voice_setting.decode_type == DECODE_TYPE_MSBC) {
+        while(offset + BEE_MSBC_FRAME_SIZE <= len) {
+            //debug("offset is %d now, len is %d", offset, len);
+            ret = RS_deal_voice_stream_data(buf + offset, BEE_MSBC_FRAME_SIZE, output_buf, 1024, &decode_len);
+            if(ret < 0) {
+                offset++;
+            }else {
+                UIPC_Send_noblock(UIPC_CH_ID_VOICE_DATA, 0, output_buf, decode_len);
+                offset += BEE_MSBC_FRAME_SIZE;
+            }
+        }
+    }else if(global_voice_setting.decode_type == DECODE_TYPE_SBC) {
+        decode_len = 1024;
+        while(offset + BEE_SBC_FRAME_SIZE <= len) {
+            ret = sbcDecode(buf + offset, BEE_SBC_FRAME_SIZE, output_buf, &decode_len);
+            if(ret < 0) {
+                debug("fail to decode: %d", ret);
+                offset++;
+            }else {
+                UIPC_Send_noblock(UIPC_CH_ID_VOICE_DATA, 0, output_buf, decode_len);
+                offset += BEE_SBC_FRAME_SIZE;
+            }
+        }
+    }
+}
+
+static int read_message(int fd)
+{
+    unsigned char buf[4096];
+    int res,i;
+
+    unsigned char start_rec_command[] = {global_voice_setting.voice_cmd_reportID, 0x01};
+    unsigned char stop_rec_command[] = {global_voice_setting.voice_cmd_reportID, 0x00};
+    static int voice_kpressed = 0;
+
+/*
+    struct hidraw_devinfo info;
+ 
+    res = ioctl(fd, HIDIOCGRAWINFO, &info);
+    if (res < 0) {
+        perror("HIDIOCGRAWINFO");
+    }
+*/
+
+    //if( (info.vendor==global_voice_setting.vid) && (info.product==global_voice_setting.pid) )
+    //{
+        res = read(fd, buf, sizeof(buf));
+        if(res > 0)
+        {
+            //debug("Receive From :%04x,%04x number: %d", info.vendor, info.product, res);
+            if( (global_voice_setting.data_mask & DATA_TYPE_MASK_RAW) == DATA_TYPE_MASK_RAW) {
+                //just callback and return
+                UIPC_Send_noblock(UIPC_CH_ID_VOICE_DATA, 0, buf + 1, res - 1);
+                return 0;
+            }else if( (global_voice_setting.data_mask & DATA_TYPE_MASK_VOICE) == DATA_TYPE_MASK_VOICE) {
+                if((voice_kpressed == 0) && (buf[0] == global_voice_setting.voice_key_reportID) && 
+                    (res == global_voice_setting.voice_keypress_data_len + 1) && 
+                    (memcmp(buf + 1, global_voice_setting.voice_keypress_data, global_voice_setting.voice_keypress_data_len) == 0))
+                {
+                    //debug("voice key pressed");
+                    if(global_voice_setting.autocmd == AUTOCMD_AUTO) {
+                        RS_voice_app_create_output();
+                        RS_voice_app_create_origin_output();
+                        voice_open_store_file();
+
+                        send_message(fd, start_rec_command,sizeof(start_rec_command));
+                        voice_kpressed = 1;
+                        frame_counter = 0;
+                    }
+                    return 0;
+                }
+
+                // when voice key is released
+                if ((voice_kpressed == 1) && (buf[0] == global_voice_setting.voice_key_reportID) && 
+                    (res == global_voice_setting.voice_keyrelease_data_len + 1) && 
+                    (memcmp(buf + 1, global_voice_setting.voice_keyrelease_data, global_voice_setting.voice_keyrelease_data_len) == 0))
+                {
+                    //debug("voice key relesed");
+
+                    if(global_voice_setting.autocmd == AUTOCMD_AUTO) {
+                        RS_stop_voice_stream_data();
+                        send_message(fd, stop_rec_command,sizeof(stop_rec_command));
+                        voice_kpressed = 0;
+                        debug("total frame: %d", frame_counter);
+                        close(raw_fd);
+                        file_counter++;
+                        raw_fd = -1;
+                    }
+                    return 0;
+                }
+
+                // store voice data
+                if ((voice_kpressed == 1 ) && (buf[0] == global_voice_setting.voice_data_reportID))
+                {
+                    //debug("deal with voice data");
+                    process_voice_data(buf[0], buf + 1, res-1);
+                    voice_write_decode_buf(buf + 1, res - 1);
+                    frame_counter++;
+                    return 0;
+                }
+            }
+        }else {
+            warn("Read fd %d failed: %s", fd, strerror(errno));
+            return -1;
+        }
+        
+    //}
+
+    return 0;
+}
+
+int get_dev_vid_pid_info(int fd, short* vid, short* pid) {
+    int res = -1;
+    struct hidraw_devinfo info;
+
+    memset(&info, 0x0, sizeof(info));
+
+    res = ioctl(fd, HIDIOCGRAWINFO, &info);
+    if (res < 0) {
+        debug("failed to get HIDIOCGRAWINFO");
+    } else {
+        //debug("Raw Info:");
+        //debug(" bustype: %d (%s)", info.bustype, bus_str(info.bustype));
+        debug(" vendor: 0x%04x, product: 0x%04x", info.vendor, info.product);
+        *vid = info.vendor;
+        *pid = info.product;
+        res = 1;
+    }
+    return res;
+}
+
+static int open_device(const char *device)
+{
+    int version;
+    int fd;
+    int clkid = CLOCK_MONOTONIC;
+    struct pollfd *new_ufds;
+    int *unfds;
+    char **new_device_names;
+    char **new_unused_device_names;
+    char name[80];
+    char location[80];
+    char idstr[80];
+    struct input_id id;
+    int res = -1;
+    struct hidraw_devinfo info;
+
+    fd = open(device, O_RDWR);
+    if(fd < 0) {
+        debug("could not open %s, %s\n", device, strerror(errno));
+        return -1;
+    }
+    debug("new fd is %d", fd);
+
+    res = ioctl(fd, HIDIOCGRAWINFO, &info);
+    if(res < 0) {
+        debug("failed to get hidraw_devinfo, add for now");
+    }else if(info.bustype != BUS_BLUETOOTH){
+        debug("ingore this device");
+        close(fd);
+        return -1;
+    }else if((info.vendor != global_voice_setting.vid) || (info.product != global_voice_setting.pid)) {
+        //res = unlink(fd);
+        debug("Not the device we care, add to unused fds");
+        unfds = realloc(unused_bt_hid_fds, sizeof(unused_bt_hid_fds[0]) * (nunusedfds + 1));
+        if(unfds == NULL) {
+            error("unused fds: out of memory");
+            return -1;
+        }
+
+        new_unused_device_names = realloc(unused_device_names, sizeof(unused_device_names[0]) * (nunusedfds + 1));
+        if(new_unused_device_names == NULL) {
+            error("unused device_names: out of memory");
+            return -1;
+        }
+
+        unused_bt_hid_fds = unfds;
+        unused_device_names = new_unused_device_names;
+        
+        unused_bt_hid_fds[nunusedfds] = fd;
+        unused_device_names[nunusedfds] = strdup(device);
+        nunusedfds++;
+        return 0; 
+    }
+
+    new_ufds = realloc(ufds, sizeof(ufds[0]) * (nfds + 1));
+    if(new_ufds == NULL) {
+        error("out of memory\n");
+        return -1;
+    }
+
+    ufds = new_ufds;
+    new_device_names = realloc(device_names, sizeof(device_names[0]) * (nfds + 1));
+    if(new_device_names == NULL) {
+        debug("out of memory\n");
+        return -1;
+    }
+    device_names = new_device_names;
+    //get_hidraw_info(fd);
+    ufds[nfds].fd = fd;
+    ufds[nfds].events = POLLIN;
+    device_names[nfds] = strdup(device);
+    nfds++;
+
+    return 0;
+}
+
+int close_device(const char *device)
+{
+    int i;
+    for(i = 1; i < nfds; i++) {
+        if(strcmp(device_names[i], device) == 0) {
+            int count = nfds - i - 1;
+            debug("remove device %d: %s\n", i, device);
+            free(device_names[i]);
+            memmove(device_names + i, device_names + i + 1, sizeof(device_names[0]) * count);
+            close(ufds[i].fd);
+            memmove(ufds + i, ufds + i + 1, sizeof(ufds[0]) * count);
+            nfds--;
+            return 0;
+        }
+    }
+
+    for(i = 0; i < nunusedfds; i++) {
+        if(strcmp(unused_device_names[i], device) == 0) {
+            int count = nunusedfds - i;
+            debug("remove unused device %d: %s\n", i, device);
+            free(unused_device_names[i]);
+            memmove(unused_device_names + i, unused_device_names + i + 1, sizeof(unused_device_names[0]) * count);
+            close(unused_bt_hid_fds[i]);
+            memmove(unused_bt_hid_fds + i, unused_bt_hid_fds + i + 1, sizeof(unused_bt_hid_fds[0]) * count);
+            nunusedfds--;
+            return 0;
+        }
+    }
+    
+    error("remote device: %s not found\n", device);
+    return -1;
+}
+
+static int read_notify(const char *dirname, int nfd)
+{
+    int res;
+    char devname[PATH_MAX];
+    char *filename;
+    char event_buf[512];
+    int event_size;
+    int event_pos = 0;
+    struct inotify_event *event;
+
+    res = read(nfd, event_buf, sizeof(event_buf));
+    if(res < (int)sizeof(*event)) {
+        if(errno == EINTR)
+            return 0;
+        error("could not get event, %s\n", strerror(errno));
+        return 1;
+    }
+    //printf("got %d bytes of event information\n", res);
+
+    strcpy(devname, dirname);
+    filename = devname + strlen(devname);
+    *filename++ = '/';
+
+    while(res >= (int)sizeof(*event)) {
+        event = (struct inotify_event *)(event_buf + event_pos);
+        //debug("%d: %08x \"%s\"\n", event->wd, event->mask, event->len ? event->name : "");
+        if((event->len)&&(memcmp(event->name, "hidraw", strlen("hidraw"))==0)) {
+            debug("read_notify: %d: %08x \"%s\"\n", event->wd, event->mask, event->len ? event->name : "");
+            strcpy(filename, event->name);
+            if(event->mask & IN_CREATE) {
+                open_device(devname);
+            }
+            else {
+                close_device(devname);
+            }
+        }
+        event_size = sizeof(*event) + event->len;
+        res -= event_size;
+        event_pos += event_size;
+    }
+    return 0;
+}
+
+
+static int scan_dir(const char *dirname)
+{
+    char devname[PATH_MAX];
+    char *filename;
+    DIR *dir;
+    struct dirent *de;
+    dir = opendir(dirname);
+    if(dir == NULL)
+        return -1;
+    strcpy(devname, dirname);
+    filename = devname + strlen(devname);
+    *filename++ = '/';
+    while((de = readdir(dir))) {
+        if(de->d_name[0] == '.' &&
+           (de->d_name[1] == '\0' ||
+            (de->d_name[1] == '.' && de->d_name[2] == '\0')))
+            continue;
+        if(memcmp(de->d_name,"hidraw",strlen("hidraw")))
+            continue;
+        strcpy(filename, de->d_name);
+        //debug("scan_dir: %s\n",devname);
+        open_device(devname);
+    }
+    closedir(dir);
+    return 0;
+}
+
+static void voice_ctrl_recv(void)
+{
+    unsigned char cmd[256], opcode = 0xFF;
+    int n, i;
+
+    n = UIPC_Read(UIPC_CH_ID_VOICE_CTRL, NULL, cmd, 256);
+
+    /* detach on ctrl channel means audioflinger process was terminated */
+    if (n == 0)
+    {
+        debug("CTRL CH DETACHED");
+        //the ctrl channel will re-open automatically
+        UIPC_Close(UIPC_CH_ID_VOICE_CTRL);
+        return;
+    }
+
+    debug("receive voice-ctrl-cmd read num_of_data = %d ", n);
+    for (i=0; i< n; i++)
+        info("data[%d] = %d ", i, cmd[i]);
+    //receive start or stop cmd from service
+    if( cmd[0] <= OPCODE_MAX)
+    {
+        opcode = cmd[0];
+    }
+    else
+    {
+        //clear the memory
+        UIPC_Ioctl(UIPC_CH_ID_VOICE_CTRL, UIPC_REQ_RX_FLUSH,NULL);
+        info("it is wrong cmd send from service");
+    }
+
+    info("opcode = %d",opcode);
+    switch(opcode)
+    {
+        case OPCODE_SETTING_RESET:              //0   cmd(1)
+            break;
+
+        case OPCODE_VOICE_START_CMD:            //1   cmd(1)
+            debug("start, len=%d", n);
+            break;
+
+        case OPCODE_VOICE_STOP_CMD:             //2   cmd(1)
+            debug("stop, len=%d", n);
+            break;
+
+        case OPCODE_SET_RCU_INFO:               //3   cmd(1) + vid(2) + pid(2) + vers(2)
+            if(n == 7) {
+                int vid = (cmd[1] << 8) + cmd[2];
+                int pid = (cmd[3] << 8) + cmd[4];
+                int vers = (cmd[5] << 8) + cmd[6];
+                set_rcu_info(vid,pid,vers);
+            }
+            break;
+
+        case OPCODE_SET_VOICE_DATA_REPORT_ID:   //4   cmd(1) + reportID(1)
+            if(n == 2) {
+                set_voice_data_reportID(cmd[1]);
+            }
+            break;
+
+        case OPCODE_SET_VOICE_CMD_REPORT_ID:    //5   cmd(1) + reportID(1)
+            if(n == 2) {
+                set_voice_cmd_reportID(cmd[1]);
+            }
+            break;
+
+        case OPCODE_SET_VOICE_KEY_REPORT_ID:    //6   cmd(1) + reportID(1)
+            if(n == 2) {
+                set_voice_key_reportID(cmd[1]);
+            }
+            break;
+
+        case OPCODE_SET_VOICE_KEYPRESS_DATA:    //7   cmd(1) + len(1) + data(n)
+            if(n > 2) {
+                int len = cmd[1];
+                set_voice_keypress_data(len, cmd + 2);
+            }
+            break;
+
+        case OPCODE_SET_VOICE_KEYRELEASE_DATA:  //8   cmd(1) + len(1) + data(n)
+            if(n > 2) {
+                int len = cmd[1];
+                set_voice_keyrelease_data(len, cmd + 2);
+            }
+            break;
+
+        case OPCODE_SET_VOICE_STARTCMD_DATA:    //9   cmd(1) + len(1) + data(n)
+            debug("set voice start data, len=%d", cmd[1]);
+            break;
+
+        case OPCODE_SET_VOICE_STOPCMD_DATA:     //10  cmd(1) + len(1) + data(n)
+            debug("set voice stop data, len=%d", cmd[1]);
+            break;
+
+        case OPCODE_SET_ENCODE_TYPE:            //11  cmd(1) + type(1)
+            if(n == 2) {
+                set_encode_type(cmd[1]);
+            }
+            break;
+
+        case OPCODE_SET_DATA_TYPE_MASK:         //12  cmd(1) + type(1)
+            debug("set type mask: 0x%02x", cmd[1]);
+            break;
+
+        case OPCODE_SET_AUTO_CMD:               //13  cmd(1) + auto(1)
+            if(n == 2) {
+                set_auto_cmd(cmd[1]);
+            }
+            break;
+
+        case OPCODESEND_HIDRAW_DATA:            //14  cmd(1) + reportID(1) + len(1) + data(n)
+            debug("send raw data, reportID=0x%02x, len=0x%02x", cmd[1], cmd[2]);
+            break;
+
+        case OPCODE_EXIT:
+            debug("exit");
+            gSocket_Running = 0;
+    }
+
+    info("voice-ctrl-cmd DOWN!");
+}
+
+static void voice_data_recv(void)
+{
+    unsigned char cmd[256], opcode = 0xFF;
+    int n, i;
+
+    n = UIPC_Read(UIPC_CH_ID_VOICE_DATA, NULL, cmd, 256);
+
+    /* detach on ctrl channel means audioflinger process was terminated */
+    if (n == 0)
+    {
+        debug("DATA CH DETACHED");
+        //the ctrl channel will re-open automatically
+        UIPC_Close(UIPC_CH_ID_VOICE_DATA);
+        return;
+    }
+
+    debug("receive voice-data read num_of_data = %d ", n);
+}
+
+
+static void ctrl_socket_cb(tUIPC_CH_ID ch_id, tUIPC_EVENT event)
+{
+
+    switch(event)
+    {
+        case UIPC_OPEN_EVT:
+            /*
+                in certain case, hid status msg must be sent upon ctrl chan opened
+             */
+            debug("Jim@control_socket_cb: sending hid status msg upon open");
+            break;
+
+        case UIPC_CLOSE_EVT:
+            if (gSocket_Running) {
+                debug("jim@control_socket_cb: re-open ctrl chan");
+                UIPC_Open(UIPC_CH_ID_VOICE_CTRL, ctrl_socket_cb);
+            }
+            break;
+
+        case UIPC_RX_DATA_EVT:
+            info("btif_voice_ctrl_cb, the event is UIPC_RX_DATA_EVT");
+
+        case UIPC_RX_DATA_READY_EVT:
+            voice_ctrl_recv();
+            break;
+
+        default :
+            info("### VOICE-CTRL-CHANNEL EVENT %d NOT HANDLED ###", event);
+            break;
+    }
+}
+
+static void data_socket_cb(tUIPC_CH_ID ch_id, tUIPC_EVENT event)
+{
+
+    debug("data_socket_cb");
+    switch(event)
+    {
+        case UIPC_OPEN_EVT:
+            debug("Jim@data_socket_cb: sending hid status msg upon open");
+            break;
+
+        case UIPC_CLOSE_EVT:
+            if (gSocket_Running) {
+                debug("jim@data_socket_cb: re-open data chan");
+                UIPC_Open(UIPC_CH_ID_VOICE_DATA, data_socket_cb);
+            }
+            break;
+
+        case UIPC_RX_DATA_EVT:
+            info("data_socket_cb, the event is UIPC_RX_DATA_EVT");
+
+        case UIPC_RX_DATA_READY_EVT:
+            voice_data_recv();
+            info("data_socket_cb, the event is UIPC_RX_DATA_READY_EVT");
+            break;
+
+        default :
+            info("### VOICE-DATA-CHANNEL EVENT %d NOT HANDLED ###", event);
+            break;
+    }
+}
+
+
+
+int init(void) {
+
+    pthread_mutex_init(&mutex_voice_settings, NULL);
+    voice_msbc_init();
+    sbcInitDecoder();
+
+    gSocket_Running = 1;
+    UIPC_Init(NULL);
+    UIPC_Open(UIPC_CH_ID_VOICE_CTRL, ctrl_socket_cb);
+    UIPC_Open(UIPC_CH_ID_VOICE_DATA, data_socket_cb);
+
+    return 0;
+}
+
+void cleanup(void) {
+
+    gSocket_Running = 0;
+    UIPC_Close(UIPC_CH_ID_VOICE_DATA);
+    UIPC_Close(UIPC_CH_ID_VOICE_CTRL);
+
+    pthread_mutex_lock(&mutex_voice_settings);
+    
+    
+    if(global_voice_setting.voice_keypress_data != NULL)
+        free(global_voice_setting.voice_keypress_data);
+
+    if(global_voice_setting.voice_keyrelease_data != NULL)
+        free(global_voice_setting.voice_keyrelease_data);
+
+    pthread_mutex_unlock(&mutex_voice_settings);
+    //release other resources here
+}
+
+
+int main(void) {
+    const char *device_path = "/dev";
+    int res;
+    int i;
+
+    init();
+
+    nfds = 1;
+    ufds = calloc(1, sizeof(ufds[0]));
+    ufds[0].fd = inotify_init();
+    ufds[0].events = POLLIN;
+
+    res = inotify_add_watch(ufds[0].fd, device_path, IN_DELETE | IN_CREATE);
+    if(res < 0) {
+        error("could not add watch for %s, %s\n", device_path, strerror(errno));
+        return -1;
+    }
+
+    res = scan_dir(device_path);
+    if(res < 0) {
+        error("scan dir failed for %s\n", device_path);
+        return -2;
+    }
+
+    while(gSocket_Running) {
+        poll(ufds, nfds, -1);
+        if(ufds[0].revents & POLLIN) {
+            //debug("new notify event!!!");
+            read_notify(device_path, ufds[0].fd);
+        }
+
+        for(i = 1; i < nfds; i++) {
+            if(ufds[i].revents) {
+                /*
+                //debug("new message event, fd = %d, event = %04x.", ufds[i].fd, ufds[i].revents);
+                if((ufds[i].revents & POLLHUP) && (ufds[i].revents & POLLERR)) {
+                    debug("close, fd=%d, events=0x%04x", ufds[i].fd, ufds[i].revents);
+                    close(ufds[i].fd);
+                 
+                }else if(ufds[i].revents & POLLIN) {
+                    //debug("new message event!!!");
+                    read_message(ufds[i].fd);
+                }
+                */
+                if(ufds[i].revents & POLLIN) {
+                    //debug("new message event!!!");
+                    read_message(ufds[i].fd);
+                }
+            }
+        }
+    }
+    cleanup();
+    
+    return 0;
+
+}
+
diff --git a/rtkbt/addon/vr_bee1_hidraw_daemon/hidraw/voice_hidraw.h b/rtkbt/addon/vr_bee1_hidraw_daemon/hidraw/voice_hidraw.h
new file mode 100755
index 0000000..9ea31d6
--- /dev/null
+++ b/rtkbt/addon/vr_bee1_hidraw_daemon/hidraw/voice_hidraw.h
@@ -0,0 +1,55 @@
+#ifndef VOICE_HIDRAW_H
+#define VOICE_HIDRAW_H
+
+#include <cutils/log.h>
+
+
+#define DECODE_TYPE_MSBC 1
+#define DECODE_TYPE_SBC 2
+#define DECODE_TYPE_MAX 2
+
+#define DATA_TYPE_MASK_VOICE (0x01)
+#define DATA_TYPE_MASK_RAW (0x02)
+
+#define AUTOCMD_AUTO 1
+#define AUTOCMD_NONE 2
+
+#define SW_VERSION (0x0000)
+
+#define CONFIG_PATH "/system/etc/hidraw_setting"
+
+
+#define warn(fmt, ...) ALOGW ("## WARNING : %s(L%d):  " fmt "##",__FUNCTION__, __LINE__, ## __VA_ARGS__)
+#define error(fmt, ...) ALOGE ("## ERROR : %s(L%d): " fmt "##",__FUNCTION__, __LINE__, ## __VA_ARGS__)
+
+#define info(fmt, ...)  ALOGI ("%s(L%d): " fmt,__FUNCTION__, __LINE__,  ## __VA_ARGS__)
+#define debug(fmt, ...) ALOGD ("%s(L%d): " fmt,__FUNCTION__, __LINE__,  ## __VA_ARGS__)
+
+
+#define VOICE_DATA_PATH     "/data/misc/bluedroid/.voice_data"
+#define VOICE_CTRL_PATH     "/data/misc/bluedroid/.voice_ctrl"
+
+
+
+//supported opcode
+
+#define OPCODE_SETTING_RESET                0   //cmd(1)
+#define OPCODE_VOICE_START_CMD              1   //cmd(1)
+#define OPCODE_VOICE_STOP_CMD               2   //cmd(1)
+#define OPCODE_SET_RCU_INFO                 3   //cmd(1) + vid(2) + pid(2) + vers(2)
+#define OPCODE_SET_VOICE_DATA_REPORT_ID     4   //cmd(1) + reportID(1)
+#define OPCODE_SET_VOICE_CMD_REPORT_ID      5   //cmd(1) + reportID(1)
+#define OPCODE_SET_VOICE_KEY_REPORT_ID      6   //cmd(1) + reportID(1)
+#define OPCODE_SET_VOICE_KEYPRESS_DATA      7   //cmd(1) + len(1) + data(n)
+#define OPCODE_SET_VOICE_KEYRELEASE_DATA    8   //cmd(1) + len(1) + data(n)
+#define OPCODE_SET_VOICE_STARTCMD_DATA      9   //cmd(1) + len(1) + data(n)
+#define OPCODE_SET_VOICE_STOPCMD_DATA       10  //cmd(1) + len(1) + data(n)
+#define OPCODE_SET_ENCODE_TYPE              11  //cmd(1) + type(1)
+#define OPCODE_SET_DATA_TYPE_MASK           12  //cmd(1) + type(1)
+#define OPCODE_SET_AUTO_CMD                 13  //cmd(1) + auto(1)
+#define OPCODESEND_HIDRAW_DATA              14  //cmd(1) + reportID(1) + len(1) + data(n)
+#define OPCODE_EXIT                         15  //cmd(1) 
+
+#define OPCODE_MAX                          15
+
+#endif
diff --git a/rtkbt/addon/vr_bee1_hidraw_daemon/hidraw/voice_uipc.c b/rtkbt/addon/vr_bee1_hidraw_daemon/hidraw/voice_uipc.c
new file mode 100755
index 0000000..567dd85
--- /dev/null
+++ b/rtkbt/addon/vr_bee1_hidraw_daemon/hidraw/voice_uipc.c
@@ -0,0 +1,916 @@
+/*****************************************************************************
+ *
+ *  Filename:      uipc.c
+ *
+ *  Description:   UIPC implementation for bluedroid
+ *
+ *****************************************************************************/
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+
+#include <sys/stat.h>
+#include <unistd.h>
+#include <fcntl.h>
+
+#include <sys/socket.h>
+#include <sys/un.h>
+#include <signal.h>
+#include <errno.h>
+#include <pthread.h>
+#include <sys/select.h>
+#include <sys/poll.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <sys/prctl.h>
+
+
+#include "voice_uipc.h"
+#include "voice_hidraw.h"
+
+#include <cutils/sockets.h>
+
+volatile int uipc_inited = 0;
+
+
+/*****************************************************************************
+**  Constants & Macros
+******************************************************************************/
+
+#define MAX(a,b) ((a)>(b)?(a):(b))
+
+#define CASE_RETURN_STR(const) case const: return #const;
+
+#define UIPC_DISCONNECTED (-1)
+
+#define UIPC_LOCK() /*BTIF_TRACE_EVENT(" %s lock", __FUNCTION__);*/ pthread_mutex_lock(&uipc_main.mutex);
+#define UIPC_UNLOCK() /*BTIF_TRACE_EVENT("%s unlock", __FUNCTION__);*/ pthread_mutex_unlock(&uipc_main.mutex);
+
+#define SAFE_FD_ISSET(fd, set) (((fd) == -1) ? 0 : FD_ISSET((fd), (set)))
+
+#define UIPC_FLUSH_BUFFER_SIZE 1024
+
+/*****************************************************************************
+**  Local type definitions
+******************************************************************************/
+
+typedef enum {
+    UIPC_TASK_FLAG_DISCONNECT_CHAN = 0x1,
+} tUIPC_TASK_FLAGS;
+
+typedef struct {
+    int srvfd;
+    int fd;
+    int read_poll_tmo_ms;
+    int task_evt_flags;   /* event flags pending to be processed in read task */
+    tUIPC_EVENT cond_flags;
+    pthread_mutex_t cond_mutex;
+    pthread_cond_t  cond;
+    tUIPC_RCV_CBACK *cback;
+} tUIPC_CHAN;
+
+typedef struct {
+    pthread_t tid; /* main thread id */
+    int running;
+    pthread_mutex_t mutex;
+
+    fd_set active_set;
+    fd_set read_set;
+    int max_fd;
+    int signal_fds[2];
+
+    tUIPC_CHAN ch[UIPC_CH_NUM];
+} tUIPC_MAIN;
+
+
+/*****************************************************************************
+**  Static variables
+******************************************************************************/
+
+static tUIPC_MAIN uipc_main;
+
+
+/*****************************************************************************
+**  Static functions
+******************************************************************************/
+
+static int uipc_close_ch_locked(tUIPC_CH_ID ch_id);
+
+/*****************************************************************************
+**  Externs
+******************************************************************************/
+
+
+/*****************************************************************************
+**   Helper functions
+******************************************************************************/
+
+
+const char* dump_uipc_event(tUIPC_EVENT event)
+{
+    switch(event)
+    {
+        CASE_RETURN_STR(UIPC_OPEN_EVT)
+        CASE_RETURN_STR(UIPC_CLOSE_EVT)
+        CASE_RETURN_STR(UIPC_RX_DATA_EVT)
+        CASE_RETURN_STR(UIPC_RX_DATA_READY_EVT)
+        CASE_RETURN_STR(UIPC_TX_DATA_READY_EVT)
+        default:
+            return "UNKNOWN MSG ID";
+    }
+}
+
+/*****************************************************************************
+**   socket helper functions
+*****************************************************************************/
+
+static inline int create_server_socket(const char* name)
+{
+    int s = socket(AF_LOCAL, SOCK_STREAM, 0);
+    if (s < 0)
+        return -1;
+
+    info("create_server_socket %s", name);
+
+    if(socket_local_server_bind(s, name, ANDROID_SOCKET_NAMESPACE_ABSTRACT) < 0)
+    {
+        error("socket failed to create (%s)", strerror(errno));
+        close(s);
+        return -1;
+    }
+
+    if(listen(s, 5) < 0)
+    {
+        error("listen failed", strerror(errno));
+        close(s);
+        return -1;
+    }
+
+    info("created socket fd %d", s);
+    return s;
+}
+
+static int accept_server_socket(int sfd)
+{
+    struct sockaddr_un remote;
+    struct pollfd pfd;
+    int fd;
+    socklen_t len = sizeof(struct sockaddr_un);
+
+    info("accept fd %d", sfd);
+
+    /* make sure there is data to process */
+    pfd.fd = sfd;
+    pfd.events = POLLIN;
+
+    if (poll(&pfd, 1, 0) == 0)
+    {
+        error("accept poll timeout");
+        return -1;
+    }
+
+    //BTIF_TRACE_EVENT("poll revents 0x%x", pfd.revents);
+
+    if ((fd = accept(sfd, (struct sockaddr *)&remote, &len)) == -1)
+    {
+         error("sock accept failed (%s)", strerror(errno));
+         return -1;
+    }
+
+    //BTIF_TRACE_EVENT("new fd %d", fd);
+
+    return fd;
+}
+
+/*****************************************************************************
+**
+**   uipc helper functions
+**
+*****************************************************************************/
+
+static int uipc_main_init(void)
+{
+    int i;
+    pthread_mutexattr_t attr;
+    pthread_mutexattr_init(&attr);
+    pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
+    pthread_mutex_init(&uipc_main.mutex, &attr);
+
+    debug("### uipc_main_init ###");
+
+    /* setup interrupt socket pair */
+    if (socketpair(AF_UNIX, SOCK_STREAM, 0, uipc_main.signal_fds) < 0)
+    {
+        return -1;
+    }
+
+    FD_SET(uipc_main.signal_fds[0], &uipc_main.active_set);
+    uipc_main.max_fd = MAX(uipc_main.max_fd, uipc_main.signal_fds[0]);
+
+    for (i=0; i< UIPC_CH_NUM; i++)
+    {
+        tUIPC_CHAN *p = &uipc_main.ch[i];
+        p->srvfd = UIPC_DISCONNECTED;
+        p->fd = UIPC_DISCONNECTED;
+        p->task_evt_flags = 0;
+        pthread_cond_init(&p->cond, NULL);
+        pthread_mutex_init(&p->cond_mutex, NULL);
+        p->cback = NULL;
+    }
+
+    return 0;
+}
+
+void uipc_main_cleanup(void)
+{
+    int i;
+
+    info("uipc_main_cleanup");
+
+    close(uipc_main.signal_fds[0]);
+    close(uipc_main.signal_fds[1]);
+
+    /* close any open channels */
+    for (i=0; i<UIPC_CH_NUM; i++)
+        uipc_close_ch_locked(i);
+}
+
+
+
+/* check pending events in read task */
+static void uipc_check_task_flags_locked(void)
+{
+    int i;
+
+    for (i=0; i<UIPC_CH_NUM; i++)
+    {
+        //BTIF_TRACE_EVENT("CHECK TASK FLAGS %x %x",  uipc_main.ch[i].task_evt_flags, UIPC_TASK_FLAG_DISCONNECT_CHAN);
+        if (uipc_main.ch[i].task_evt_flags & UIPC_TASK_FLAG_DISCONNECT_CHAN)
+        {
+            uipc_main.ch[i].task_evt_flags &= ~UIPC_TASK_FLAG_DISCONNECT_CHAN;
+            uipc_close_ch_locked(i);
+        }
+
+        /* add here */
+
+    }
+}
+
+
+static int uipc_check_fd_locked(tUIPC_CH_ID ch_id)
+{
+    if (ch_id >= UIPC_CH_NUM)
+        return -1;
+
+    //BTIF_TRACE_EVENT("CHECK SRVFD %d (ch %d)", uipc_main.ch[ch_id].srvfd, ch_id);
+
+    if (SAFE_FD_ISSET(uipc_main.ch[ch_id].srvfd, &uipc_main.read_set))
+    {
+        debug("INCOMING CONNECTION ON CH %d", ch_id);
+
+        uipc_main.ch[ch_id].fd = accept_server_socket(uipc_main.ch[ch_id].srvfd);
+
+        debug("NEW FD %d", uipc_main.ch[ch_id].fd);
+
+        if ((uipc_main.ch[ch_id].fd > 0) && uipc_main.ch[ch_id].cback)
+        {
+            /*  if we have a callback we should add this fd to the active set
+                and notify user with callback event */
+            debug("ADD FD %d TO ACTIVE SET", uipc_main.ch[ch_id].fd);
+            FD_SET(uipc_main.ch[ch_id].fd, &uipc_main.active_set);
+            uipc_main.max_fd = MAX(uipc_main.max_fd, uipc_main.ch[ch_id].fd);
+        }
+
+        if (uipc_main.ch[ch_id].fd < 0)
+        {
+            error("FAILED TO ACCEPT CH %d (%s)", ch_id, strerror(errno));
+            return -1;
+        }
+
+        if (uipc_main.ch[ch_id].cback)
+            uipc_main.ch[ch_id].cback(ch_id, UIPC_OPEN_EVT);
+    }
+
+    //BTIF_TRACE_EVENT("CHECK FD %d (ch %d)", uipc_main.ch[ch_id].fd, ch_id);
+
+    if (SAFE_FD_ISSET(uipc_main.ch[ch_id].fd, &uipc_main.read_set))
+    {
+        //BTIF_TRACE_EVENT("INCOMING DATA ON CH %d", ch_id);
+
+        if (uipc_main.ch[ch_id].cback)
+            uipc_main.ch[ch_id].cback(ch_id, UIPC_RX_DATA_READY_EVT);
+    }
+    return 0;
+}
+
+static void uipc_check_interrupt_locked(void)
+{
+    if (SAFE_FD_ISSET(uipc_main.signal_fds[0], &uipc_main.read_set))
+    {
+        char sig_recv = 0;
+        //BTIF_TRACE_EVENT("UIPC INTERRUPT");
+        recv(uipc_main.signal_fds[0], &sig_recv, sizeof(sig_recv), MSG_WAITALL);
+    }
+}
+
+static inline void uipc_wakeup_locked(void)
+{
+    char sig_on = 1;
+    info("UIPC SEND WAKE UP");
+    send(uipc_main.signal_fds[1], &sig_on, sizeof(sig_on), 0);
+}
+
+static int uipc_setup_server_locked(tUIPC_CH_ID ch_id, char *name, tUIPC_RCV_CBACK *cback)
+{
+    int fd;
+
+    debug("SETUP CHANNEL SERVER %d", ch_id);
+
+    if (ch_id >= UIPC_CH_NUM)
+        return -1;
+
+    UIPC_LOCK();
+
+    fd = create_server_socket(name);
+
+    if (fd < 0)
+    {
+        error("failed to setup %s", name, strerror(errno));
+        UIPC_UNLOCK();
+         return -1;
+    }
+
+    debug("ADD SERVER FD TO ACTIVE SET %d", fd);
+    FD_SET(fd, &uipc_main.active_set);
+    uipc_main.max_fd = MAX(uipc_main.max_fd, fd);
+
+    uipc_main.ch[ch_id].srvfd = fd;
+    uipc_main.ch[ch_id].cback = cback;
+    uipc_main.ch[ch_id].read_poll_tmo_ms = DEFAULT_READ_POLL_TMO_MS;
+
+    /* trigger main thread to update read set */
+    uipc_wakeup_locked();
+
+    UIPC_UNLOCK();
+
+    return 0;
+}
+
+static void uipc_flush_ch_locked(tUIPC_CH_ID ch_id)
+{
+    char buf[UIPC_FLUSH_BUFFER_SIZE];
+    struct pollfd pfd;
+    int ret;
+
+    pfd.events = POLLIN;
+    pfd.fd = uipc_main.ch[ch_id].fd;
+
+    if (uipc_main.ch[ch_id].fd == UIPC_DISCONNECTED)
+    {
+        debug("%s() - fd disconnected. Exiting", __FUNCTION__);
+        return;
+    }
+
+    while (1)
+    {
+        ret = poll(&pfd, 1, 1);
+        info("%s() - polling fd %d, revents: 0x%x, ret %d",
+                __FUNCTION__, pfd.fd, pfd.revents, ret);
+
+        if (pfd.revents & (POLLERR|POLLHUP))
+        {
+            debug("%s() - POLLERR or POLLHUP. Exiting", __FUNCTION__);
+            return;
+        }
+
+        if (ret <= 0)
+        {
+            error("%s() - error (%d). Exiting", __FUNCTION__, ret);
+            return;
+        }
+
+        /* read sufficiently large buffer to ensure flush empties socket faster than
+           it is getting refilled */
+        read(pfd.fd, &buf, UIPC_FLUSH_BUFFER_SIZE);
+    }
+}
+
+
+static void uipc_flush_locked(tUIPC_CH_ID ch_id)
+{
+    if (ch_id >= UIPC_CH_NUM)
+        return;
+
+    switch(ch_id)
+    {
+        case UIPC_CH_ID_VOICE_DATA:
+            uipc_flush_ch_locked(UIPC_CH_ID_VOICE_DATA);
+            break;
+
+        case UIPC_CH_ID_VOICE_CTRL:
+            uipc_flush_ch_locked(UIPC_CH_ID_VOICE_CTRL);
+            break;
+    }
+}
+
+
+static int uipc_close_ch_locked(tUIPC_CH_ID ch_id)
+{
+    int wakeup = 0;
+
+    debug("CLOSE CHANNEL %d", ch_id);
+
+    if (ch_id >= UIPC_CH_NUM)
+        return -1;
+
+    if (uipc_main.ch[ch_id].srvfd != UIPC_DISCONNECTED)
+    {
+        info("CLOSE SERVER (FD %d)", uipc_main.ch[ch_id].srvfd);
+        close(uipc_main.ch[ch_id].srvfd);
+        FD_CLR(uipc_main.ch[ch_id].srvfd, &uipc_main.active_set);
+        uipc_main.ch[ch_id].srvfd = UIPC_DISCONNECTED;
+        wakeup = 1;
+    }
+
+    if (uipc_main.ch[ch_id].fd != UIPC_DISCONNECTED)
+    {
+        info("CLOSE CONNECTION (FD %d)", uipc_main.ch[ch_id].fd);
+        close(uipc_main.ch[ch_id].fd);
+        FD_CLR(uipc_main.ch[ch_id].fd, &uipc_main.active_set);
+        uipc_main.ch[ch_id].fd = UIPC_DISCONNECTED;
+        wakeup = 1;
+    }
+
+    /* notify this connection is closed */
+    if (uipc_main.ch[ch_id].cback)
+        uipc_main.ch[ch_id].cback(ch_id, UIPC_CLOSE_EVT);
+
+    /* trigger main thread update if something was updated */
+    if (wakeup)
+        uipc_wakeup_locked();
+
+    return 0;
+}
+
+
+void uipc_close_locked(tUIPC_CH_ID ch_id)
+{
+    if (uipc_main.ch[ch_id].srvfd == UIPC_DISCONNECTED)
+    {
+        warn("CHANNEL %d ALREADY CLOSED", ch_id);
+        return;
+    }
+
+    /* schedule close on this channel */
+    uipc_main.ch[ch_id].task_evt_flags |= UIPC_TASK_FLAG_DISCONNECT_CHAN;
+    uipc_wakeup_locked();
+}
+
+
+static void uipc_read_task(void *arg)
+{
+    int ch_id;
+    int result;
+
+    prctl(PR_SET_NAME, (unsigned long)"uipc-main", 0, 0, 0);
+
+
+    while (uipc_main.running)
+    {
+        uipc_main.read_set = uipc_main.active_set;
+
+        result = select(uipc_main.max_fd+1, &uipc_main.read_set, NULL, NULL, NULL);
+
+        if (result == 0)
+        {
+            info("select timeout");
+            continue;
+        }
+        else if (result < 0)
+        {
+            warn("select failed %s", strerror(errno));
+            continue;
+        }
+
+        UIPC_LOCK();
+
+        /* clear any wakeup interrupt */
+        uipc_check_interrupt_locked();
+
+        /* check pending task events */
+        uipc_check_task_flags_locked();
+
+
+        /* check for other connections */
+        for (ch_id = 0; ch_id < UIPC_CH_NUM; ch_id++)
+        {
+            uipc_check_fd_locked(ch_id);
+        }
+
+        UIPC_UNLOCK();
+    }
+
+    debug("UIPC READ THREAD EXITING");
+
+    uipc_main_cleanup();
+
+    uipc_main.tid = 0;
+
+    debug("UIPC READ THREAD DONE");
+}
+
+
+int uipc_start_main_server_thread(void)
+{
+    uipc_main.running = 1;
+
+    if (pthread_create(&uipc_main.tid, (const pthread_attr_t *) NULL, (void*)uipc_read_task, NULL) < 0)
+    {
+        error("uipc_thread_create pthread_create failed:%d", errno);
+        return -1;
+    }
+
+    return 0;
+}
+
+/* blocking call */
+void uipc_stop_main_server_thread(void)
+{
+    /* request shutdown of read thread */
+    UIPC_LOCK();
+    uipc_main.running = 0;
+    uipc_wakeup_locked();
+    UIPC_UNLOCK();
+
+    /* wait until read thread is fully terminated */
+    /* tid might hold pointer value where it's value
+       is negative vaule with singed bit is set, so
+       corrected the logic to check zero or non zero */
+    if (uipc_main.tid)
+        pthread_join(uipc_main.tid, NULL);
+}
+
+/*******************************************************************************
+ **
+ ** Function         UIPC_Init
+ **
+ ** Description      Initialize UIPC module
+ **
+ ** Returns          void
+ **
+ *******************************************************************************/
+
+void UIPC_Init(void *p_data)
+{
+    debug("UIPC_Init");
+    if (uipc_inited == 1)
+    {
+        return;
+    }
+    uipc_inited = 1;
+
+    memset(&uipc_main, 0, sizeof(tUIPC_MAIN));
+
+    uipc_main_init();
+
+    uipc_start_main_server_thread();
+}
+
+/*******************************************************************************
+ **
+ ** Function         UIPC_Open
+ **
+ ** Description      Open UIPC interface
+ **
+ ** Returns          TRUE in case of success, FALSE in case of failure.
+ **
+ *******************************************************************************/
+int UIPC_Open(tUIPC_CH_ID ch_id, tUIPC_RCV_CBACK *p_cback)
+{
+    debug("UIPC_Open : ch_id %d, p_cback %x", ch_id, p_cback);
+
+    UIPC_LOCK();
+
+    if (ch_id >= UIPC_CH_NUM)
+    {
+        UIPC_UNLOCK();
+        return -1;
+    }
+
+    if (uipc_main.ch[ch_id].srvfd != UIPC_DISCONNECTED)
+    {
+        debug("CHANNEL %d ALREADY OPEN", ch_id);
+
+        if(uipc_main.ch[ch_id].fd > 0)
+        {
+            debug("the client socket is not disconnect");
+        }
+
+        UIPC_UNLOCK();
+        return 0;
+    }
+
+    switch(ch_id)
+    {
+        case UIPC_CH_ID_VOICE_CTRL:
+            uipc_setup_server_locked(ch_id, VOICE_CTRL_PATH, p_cback);
+            break;
+
+        case UIPC_CH_ID_VOICE_DATA:
+            uipc_setup_server_locked(ch_id, VOICE_DATA_PATH, p_cback);
+            break;
+
+    }
+
+    UIPC_UNLOCK();
+
+    return 0;
+}
+
+/*******************************************************************************
+ **
+ ** Function         UIPC_Close
+ **
+ ** Description      Close UIPC interface
+ **
+ ** Returns          void
+ **
+ *******************************************************************************/
+
+void UIPC_Close(tUIPC_CH_ID ch_id)
+{
+    debug("UIPC_Close : ch_id %d", ch_id);
+
+    /* special case handling uipc shutdown */
+    if (ch_id != UIPC_CH_ID_ALL)
+    {
+        UIPC_LOCK();
+        uipc_close_locked(ch_id);
+        UIPC_UNLOCK();
+    }
+    else
+    {
+
+        int i;
+        for (i=0; i<UIPC_CH_NUM; i++)
+            uipc_close_ch_locked(i);
+
+        info("UIPC_Close : waiting for shutdown to complete");
+        uipc_stop_main_server_thread();
+        debug("UIPC_Close : shutdown complete");
+    }
+}
+
+/*******************************************************************************
+ **
+ ** Function         UIPC_Send
+ **
+ ** Description      Called to transmit a message over UIPC.
+ **
+ ** Returns          TRUE in case of success, FALSE in case of failure.
+ **
+ *******************************************************************************/
+int UIPC_Send(tUIPC_CH_ID ch_id, unsigned short msg_evt, unsigned char *p_buf,
+        unsigned short msglen)
+{
+    int ret = false;
+
+    info("UIPC_Send : ch_id:%d %d bytes", ch_id, msglen);
+
+    UIPC_LOCK();
+
+    if (write(uipc_main.ch[ch_id].fd, p_buf, msglen) < 0)
+    {
+        error("failed to write (%s)", strerror(errno));
+        ret = errno;
+    }
+
+    UIPC_UNLOCK();
+
+    return ret;
+
+}
+int UIPC_Send_noblock(tUIPC_CH_ID ch_id, unsigned short msg_evt, unsigned char *p_buf, unsigned short msglen)
+{
+    int res = 0;
+    struct pollfd pfd;
+    int fd = uipc_main.ch[ch_id].fd;
+
+    UIPC_LOCK();
+
+    pfd.fd = fd;
+    pfd.events = POLLOUT|POLLHUP;
+    if (poll(&pfd, 1, 0) == 0)
+    {
+        goto unlock;
+    }
+
+    if (pfd.revents & (POLLHUP|POLLNVAL) )
+    {
+        debug("poll : channel detached remotely");
+        uipc_close_locked(ch_id);
+        goto unlock;
+    }
+
+    res = send(uipc_main.ch[ch_id].fd, p_buf, msglen, MSG_DONTWAIT);
+    if (res < 0)
+    {
+        error("failed to write (%s)", strerror(errno));
+    }
+
+unlock:
+    UIPC_UNLOCK();
+
+    return res;
+}
+
+
+int UIPC_Read_noblock(tUIPC_CH_ID ch_id, unsigned short *p_msg_evt, unsigned char *p_buf, unsigned int len)
+{
+    int n;
+    int n_read = 0;
+    int fd = uipc_main.ch[ch_id].fd;
+    struct pollfd pfd;
+
+    if (ch_id >= UIPC_CH_NUM)
+    {
+        error("UIPC_Read_noblock : invalid ch id %d", ch_id);
+        return 0;
+    }
+
+    if (fd == UIPC_DISCONNECTED)
+    {
+        error("UIPC_Read_noblock : channel %d closed", ch_id);
+        return 0;
+    }
+
+    pfd.fd = fd;
+    pfd.events = POLLIN|POLLHUP;
+
+    if (poll(&pfd, 1, 0) == 0)
+    {
+        return 0;
+    }
+
+    if (pfd.revents & (POLLHUP|POLLNVAL) )
+    {
+        debug("poll : channel detached remotely");
+        UIPC_LOCK();
+        uipc_close_locked(ch_id);
+        UIPC_UNLOCK();
+        return 0;
+    }
+
+    n_read = recv(fd, p_buf, len, MSG_DONTWAIT|MSG_NOSIGNAL);
+
+    return n_read;
+}
+
+/*******************************************************************************
+ **
+ ** Function         UIPC_Read
+ **
+ ** Description      Called to read a message from UIPC.
+ **
+ ** Returns          return the number of bytes read.
+ **
+ *******************************************************************************/
+
+int UIPC_Read(tUIPC_CH_ID ch_id, unsigned short *p_msg_evt, unsigned char *p_buf, unsigned int len)
+{
+    int n;
+    int n_read = 0;
+    int fd = uipc_main.ch[ch_id].fd;
+    struct pollfd pfd;
+
+
+    if (ch_id >= UIPC_CH_NUM)
+    {
+        error("UIPC_Read : invalid ch id %d", ch_id);
+        return 0;
+    }
+
+    if (fd == UIPC_DISCONNECTED)
+    {
+        error("UIPC_Read : channel %d closed", ch_id);
+        return 0;
+    }
+
+    //BTIF_TRACE_DEBUG("UIPC_Read : ch_id %d, len %d, fd %d, polltmo %d", ch_id, len,
+    //        fd, uipc_main.ch[ch_id].read_poll_tmo_ms);
+
+    while (n_read < (int)len)
+    {
+        pfd.fd = fd;
+        pfd.events = POLLIN|POLLHUP;
+
+        /* make sure there is data prior to attempting read to avoid blocking
+           a read for more than poll timeout */
+        if (poll(&pfd, 1, uipc_main.ch[ch_id].read_poll_tmo_ms) == 0)
+        {
+            debug("poll timeout (%d ms)", uipc_main.ch[ch_id].read_poll_tmo_ms);
+            break;
+        }
+
+        //BTIF_TRACE_EVENT("poll revents %x", pfd.revents);
+
+        if (pfd.revents & (POLLHUP|POLLNVAL) )
+        {
+            debug("poll : channel detached remotely");
+            UIPC_LOCK();
+            uipc_close_locked(ch_id);
+            UIPC_UNLOCK();
+            return 0;
+        }
+
+        n = recv(fd, p_buf+n_read, len-n_read, 0);
+
+        //BTIF_TRACE_EVENT("read %d bytes", n);
+
+        if (n == 0)
+        {
+            debug("UIPC_Read : channel detached remotely");
+            UIPC_LOCK();
+            uipc_close_locked(ch_id);
+            UIPC_UNLOCK();
+            return 0;
+        }
+
+        if (n < 0)
+        {
+            warn("UIPC_Read : read failed (%s)", strerror(errno));
+            return 0;
+        }
+
+        n_read+=n;
+
+    }
+
+    return n_read;
+}
+
+/*******************************************************************************
+**
+** Function         UIPC_Ioctl
+**
+** Description      Called to control UIPC.
+**
+** Returns          void
+**
+*******************************************************************************/
+
+extern int UIPC_Ioctl(tUIPC_CH_ID ch_id, unsigned int request, void *param)
+{
+    info("#### UIPC_Ioctl : ch_id %d, request %d ####", ch_id, request);
+
+    UIPC_LOCK();
+
+    switch(request)
+    {
+        case UIPC_REQ_RX_FLUSH:
+            uipc_flush_locked(ch_id);
+            break;
+
+        case UIPC_REG_CBACK:
+            //BTIF_TRACE_EVENT("register callback ch %d srvfd %d, fd %d", ch_id, uipc_main.ch[ch_id].srvfd, uipc_main.ch[ch_id].fd);
+            uipc_main.ch[ch_id].cback = (tUIPC_RCV_CBACK*)param;
+            break;
+
+        case UIPC_REG_REMOVE_ACTIVE_READSET:
+
+            /* user will read data directly and not use select loop */
+            if (uipc_main.ch[ch_id].fd != UIPC_DISCONNECTED)
+            {
+                /* remove this channel from active set */
+                FD_CLR(uipc_main.ch[ch_id].fd, &uipc_main.active_set);
+
+                /* refresh active set */
+                uipc_wakeup_locked();
+            }
+            break;
+
+        case UIPC_SET_READ_POLL_TMO:
+            uipc_main.ch[ch_id].read_poll_tmo_ms = (intptr_t)param;
+            debug("UIPC_SET_READ_POLL_TMO : CH %d, TMO %d ms", ch_id, uipc_main.ch[ch_id].read_poll_tmo_ms );
+            break;
+
+        case UIPC_SET_SNDBUFSIZE:
+            info("UIPC_SET_SNDBUFSIZE : CH %d, size %d", ch_id, (int)param);
+            if (uipc_main.ch[ch_id].fd != UIPC_DISCONNECTED)
+            {
+                setsockopt(uipc_main.ch[ch_id].fd , SOL_SOCKET, SO_SNDBUF, (char*)&param, (int)sizeof(int));
+            }
+            break;
+
+
+        default:
+            debug("UIPC_Ioctl : request not handled (%d)", request);
+            break;
+    }
+
+    UIPC_UNLOCK();
+
+    return -1;
+}
+
diff --git a/rtkbt/addon/vr_bee1_hidraw_daemon/hidraw/voice_uipc.h b/rtkbt/addon/vr_bee1_hidraw_daemon/hidraw/voice_uipc.h
new file mode 100755
index 0000000..bfc1975
--- /dev/null
+++ b/rtkbt/addon/vr_bee1_hidraw_daemon/hidraw/voice_uipc.h
@@ -0,0 +1,108 @@
+#ifndef VOICE_UIPC_H
+#define VOICE_UIPC_H
+
+#define UIPC_CH_ID_VOICE_CTRL   0
+#define UIPC_CH_ID_VOICE_DATA   1
+#define UIPC_CH_NUM             2
+#define UIPC_CH_ID_ALL          3   /* used to address all the ch id at once */
+
+
+#define DEFAULT_READ_POLL_TMO_MS 100
+
+typedef unsigned char tUIPC_CH_ID;
+
+/* Events generated */
+typedef enum {
+    UIPC_OPEN_EVT           = 0x0001,
+    UIPC_CLOSE_EVT          = 0x0002,
+    UIPC_RX_DATA_EVT        = 0x0004,
+    UIPC_RX_DATA_READY_EVT  = 0x0008,
+    UIPC_TX_DATA_READY_EVT  = 0x0010
+} tUIPC_EVENT;
+
+/*
+ * UIPC IOCTL Requests
+ */
+
+#define UIPC_REQ_RX_FLUSH               1
+#define UIPC_REG_CBACK                  2
+#define UIPC_REG_REMOVE_ACTIVE_READSET  3
+#define UIPC_SET_READ_POLL_TMO          4
+
+#define UIPC_SET_SNDBUFSIZE  5
+
+
+typedef void (tUIPC_RCV_CBACK)(tUIPC_CH_ID ch_id, tUIPC_EVENT event); /* points to BT_HDR which describes event type and length of data; len contains the number of bytes of entire message (sizeof(BT_HDR) + offset + size of data) */
+
+const char* dump_uipc_event(tUIPC_EVENT event);
+
+/*******************************************************************************
+**
+** Function         UIPC_Init
+**
+** Description      Initialize UIPC module
+**
+** Returns          void
+**
+*******************************************************************************/
+void UIPC_Init(void *);
+
+/*******************************************************************************
+**
+** Function         UIPC_Open
+**
+** Description      Open UIPC interface
+**
+** Returns          void
+**
+*******************************************************************************/
+int UIPC_Open(tUIPC_CH_ID ch_id, tUIPC_RCV_CBACK *p_cback);
+
+/*******************************************************************************
+**
+** Function         UIPC_Close
+**
+** Description      Close UIPC interface
+**
+** Returns          void
+**
+*******************************************************************************/
+void UIPC_Close(tUIPC_CH_ID ch_id);
+
+/*******************************************************************************
+**
+** Function         UIPC_Send
+**
+** Description      Called to transmit a message over UIPC.
+**
+** Returns          void
+**
+*******************************************************************************/
+int UIPC_Send(tUIPC_CH_ID ch_id, unsigned short msg_evt, unsigned char *p_buf, unsigned short msglen);
+int UIPC_Send_noblock(tUIPC_CH_ID ch_id, unsigned short msg_evt, unsigned char *p_buf, unsigned short msglen);
+
+/*******************************************************************************
+**
+** Function         UIPC_Read
+**
+** Description      Called to read a message from UIPC.
+**
+** Returns          void
+**
+*******************************************************************************/
+int UIPC_Read(tUIPC_CH_ID ch_id, unsigned short *p_msg_evt, unsigned char *p_buf, unsigned int len);
+extern int UIPC_Read_noblock(tUIPC_CH_ID ch_id, unsigned short *p_msg_evt, unsigned char *p_buf, unsigned int len);
+
+
+/*******************************************************************************
+**
+** Function         UIPC_Ioctl
+**
+** Description      Called to control UIPC.
+**
+** Returns          void
+**
+*******************************************************************************/
+int UIPC_Ioctl(tUIPC_CH_ID ch_id, unsigned int request, void *param);
+
+#endif  /* UIPC_H */
diff --git a/rtkbt/addon/vr_bee1_hidraw_daemon/system/etc/hidraw_setting b/rtkbt/addon/vr_bee1_hidraw_daemon/system/etc/hidraw_setting
new file mode 100755
index 0000000..247d6f3
--- /dev/null
+++ b/rtkbt/addon/vr_bee1_hidraw_daemon/system/etc/hidraw_setting
@@ -0,0 +1,20 @@
+[Rcu]
+Vid=005d
+Pid=0001
+Ver=0000
+
+[ReportID]
+Key=1
+Data=5a
+Cmd=5a
+
+[ReportValue]
+KeyDownLen=8
+KeyDown=0,0,3e,0,0,0,0,0;
+KeyUpLen=8
+KeyUp=0,64,0,0,0,0,0,0;
+
+[Settings]
+DecodeType=1
+DataMask=1
+AutoCmd=1
diff --git a/rtkbt/addon/vr_bee2_hidraw_daemon/Android.mk b/rtkbt/addon/vr_bee2_hidraw_daemon/Android.mk
new file mode 100755
index 0000000..bd30b5b
--- /dev/null
+++ b/rtkbt/addon/vr_bee2_hidraw_daemon/Android.mk
@@ -0,0 +1,4 @@
+LOCAL_PATH := $(call my-dir)
+
+include $(call all-subdir-makefiles)
+
diff --git a/rtkbt/addon/vr_bee2_hidraw_daemon/addon.mk b/rtkbt/addon/vr_bee2_hidraw_daemon/addon.mk
new file mode 100755
index 0000000..9fcdeee
--- /dev/null
+++ b/rtkbt/addon/vr_bee2_hidraw_daemon/addon.mk
@@ -0,0 +1,5 @@
+PRODUCT_COPY_FILES += \
+    $(LOCAL_PATH)/system/etc/hidraw_setting:system/etc/hidraw_setting \
+
+PRODUCT_PACKAGES += \
+    vr_bee2_hidraw_daemon \
diff --git a/rtkbt/addon/vr_bee2_hidraw_daemon/hidraw/Android.mk b/rtkbt/addon/vr_bee2_hidraw_daemon/hidraw/Android.mk
new file mode 100755
index 0000000..7bf44c4
--- /dev/null
+++ b/rtkbt/addon/vr_bee2_hidraw_daemon/hidraw/Android.mk
@@ -0,0 +1,24 @@
+LOCAL_PATH := $(call my-dir)
+
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES += \
+              voice_hidraw.c \
+              voice_uipc.c \
+              get_voice_app.c \
+              ./msbc/msbc.c \
+              ./sbc/sbcdec.c \
+              config.c
+
+LOCAL_C_INCLUDES += \
+                    $(LOCAL_PATH)/sbc \
+                    $(LOCAL_PATH)/msbc
+
+LOCAL_CFLAGS += $(rtk_local_CFLAGS) -Wno-error=unused-parameter
+
+LOCAL_MODULE_TAGS := optional
+LOCAL_SHARED_LIBRARIES := libcutils libc liblog libtinyalsa libandroid_runtime libutils
+LOCAL_MODULE := vr_bee2_hidraw_daemon
+LOCAL_MULTILIB := 32
+
+include $(BUILD_EXECUTABLE)
diff --git a/rtkbt/addon/vr_bee2_hidraw_daemon/hidraw/bee_settings.h b/rtkbt/addon/vr_bee2_hidraw_daemon/hidraw/bee_settings.h
new file mode 100755
index 0000000..9135f83
--- /dev/null
+++ b/rtkbt/addon/vr_bee2_hidraw_daemon/hidraw/bee_settings.h
@@ -0,0 +1,35 @@
+#ifndef BEE_SETTINGS_H
+#define BEE_SETTINGS_H
+
+#define BEE_RCU_VID (0x005D)
+#define BEE_RCU_PID (0x0001)
+#define BEE_RCU_VERSION (0x0000)
+
+#define BEE_VOICEKEY_LEN 8
+
+#define BEE_VOICEKEY_REPORTID (0x01)
+
+unsigned char BEE_VOICE_KEYDOWN_DATA[BEE_VOICEKEY_LEN] = {0x00, 0x00, 0x3E, 0x00, 0x00, 0x00, 0x00, 0x00};
+unsigned char BEE_VOICE_KEYUP_DATA[BEE_VOICEKEY_LEN] = {0x00, 0x64, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
+
+//msbc
+#define BEE_MSBC_VOICEDATA_REPORTID     (0x5A)
+#define BEE_MSBC_VOICECMD_REPORTID      (0x5A)
+
+
+#define BEE_MSBC_ATT_FRAME_SIZE         120
+#define BEE_MSBC_FRAME_SIZE             60
+#define BEE_MSBC_DECODE_INPUT_SIZE      58
+#define BEE_MSBC_DECODE_OUTPUT_SIZE     240
+
+//sbc
+#define BEE_SBC_VOICEDATA_REPORTID      (0x5B)
+#define BEE_SBC_VOICECMD_REPORTID       (0x5B)
+
+#define BEE_SBC_ATT_FRAME_SIZE          72
+#define BEE_SBC_FRAME_SIZE              36
+
+#define BEE_SBC_DECODE_INPUT_SIZE      36
+#define BEE_SBC_DECODE_OUTPUT_SIZE     256
+
+#endif
diff --git a/rtkbt/addon/vr_bee2_hidraw_daemon/hidraw/config.c b/rtkbt/addon/vr_bee2_hidraw_daemon/hidraw/config.c
new file mode 100755
index 0000000..e56e8c5
--- /dev/null
+++ b/rtkbt/addon/vr_bee2_hidraw_daemon/hidraw/config.c
@@ -0,0 +1,251 @@
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <stdlib.h>
+#include <cutils/log.h>
+
+#include "config.h"
+
+
+tVoice_Hidraw_Settings *gConfig = NULL;
+static char * gContent = NULL;
+
+
+static char * voice_conf_getline(char * head, char ** left)
+{
+    char * next;
+    if(*head == 0)
+        return NULL;
+    while((*head == '\r')||(*head == '\n'))
+        head++;
+    if(*head == 0)
+        return NULL;
+    next = head;
+    while((*next != '\r')&&(*next != '\n')&&(*next != 0))
+        next++;
+    if(*next != 0)
+        *next++ = 0;
+    *left = next;
+    return head;
+}
+
+static void voice_conf_parse_config(tVoice_Hidraw_Settings **items, char *content)
+{
+    char * group = NULL;
+    char * item = NULL;
+    char * val = NULL;
+    char * line = NULL;
+    int id = -1;
+    tVoice_Hidraw_Settings* entry, * head, *end;
+
+    char * p;
+    int i = 0;
+
+    head = NULL;
+    end = NULL;
+
+    ALOGD("voice_conf_parse_config\n");
+    while((line = voice_conf_getline(content, &content)) != NULL)
+    {
+        ALOGD("voice_conf_parse_config line:%s\n", line);
+        switch(line[0])
+        {
+            case '[':
+            {
+                p = strstr(line,"]");
+                if(p)
+                {
+                    *p = 0;
+                    group = &(line[1]);
+                    ALOGI("voice_conf_parse_config Find Group[%s]\n", group);
+                }else{
+                    ALOGW("voice_conf_parse_config Expected ']' end of Group(%s)!\n", line);
+                }
+                break;
+            }
+            case '#':
+            {
+                break;
+            }
+            default:
+            {
+                p = strstr(line,"=");
+                if(p)
+                {
+                    *p++ = 0;
+                    item = line;
+                    val = p;
+                    if((item[0]==0)||(val[0]==0))
+                    {
+                        ALOGI("voice_conf_parse_config ignore(item:%s val:%s)\n", item[0]?item:"(null)", val[0]?val:"(null)");
+                        break;
+                    }
+                    ALOGI("voice_conf_parse_config Find Item[%s:%s=%s]\n", group, item, val);
+                    entry = malloc(sizeof(tVoice_Hidraw_Settings));
+                    if(entry)
+                    {
+                        entry->next = NULL;
+                        entry->group = group;
+                        entry->item = item;
+                        entry->val = val;
+                        if(end)
+                        {
+                            end->next = entry;
+                            end = entry;
+                        }else
+                            end = entry;
+                        if(head == NULL)
+                            head = entry;
+                    }
+                }
+            }
+        }
+    }
+    *items = head;
+}
+
+
+int voice_loadconfig(char * path)
+{
+    int i,res,fd;
+    struct stat st;
+    char * content = NULL;
+    struct tVoice_Hidraw_Settings* config = NULL;
+
+    ALOGI("voice_loadconfig(%s) load!\n", path);
+    fd = open(path, O_RDONLY);
+    if(fd < 0)
+    {
+        ALOGW("voice_loadconfig(%s) open fail!\n", path);
+        return -1;
+    }
+    res = fstat(fd, &st);
+    if(res)
+    {
+        ALOGW("voice_loadconfig(%s) stat fail! reason=%d\n", path, res);
+        return -1;
+    }
+    if(st.st_size <= 0)
+    {
+        ALOGW("voice_loadconfig(%s) size fail! size=%d\n", path, (int)st.st_size);
+        close(fd);
+        return -1;
+    }
+    ALOGI("voice_loadconfig(%s) size=%d!\n", path, (int)st.st_size);
+    content = malloc(st.st_size+1);
+    if(content == NULL)
+    {
+        ALOGW("voice_loadconfig(%s) malloc fail!\n", path);
+        close(fd);
+        return -1;
+    }
+    res = read(fd, content, st.st_size);
+    if(res <= 0)
+    {
+        ALOGW("voice_loadconfig(%s) read fail! res=%d\n", path, res);
+        close(fd);
+        return -1;
+    }
+    content[res] = 0;
+    voice_conf_parse_config(&config, content);
+    close(fd);
+
+    gConfig = config;
+    return 0;
+}
+
+
+
+
+static char * voice_api_GetConfig(char * group, char * item)
+{
+    int i;
+    tVoice_Hidraw_Settings * entry;
+
+    if(item == NULL)
+        return NULL;
+    entry = gConfig;
+    while(entry)
+    {
+        if(group&&(entry->group)&&(strcmp(entry->group, group)==0)&&(strcmp(entry->item, item)==0))
+            return entry->val;
+        if((group==NULL)&&(entry->group==NULL)&&(strcmp(entry->item, item)==0))
+            return entry->val;
+
+        entry = entry->next;
+    }
+    return NULL;
+}
+
+int voice_get_int_config(char *group, char *item) {
+    char *str;
+    int value = -1;
+
+    str = voice_api_GetConfig(group, item);
+    if(str == NULL) {
+        ALOGE("failed to get int value: %s-%s", group, item);
+        goto result;
+    }
+
+    value = strtol(str, NULL, 16);
+
+result:
+    return value;
+}
+
+int voice_get_byte_array_config(char *group, char *item, char* arr, int len) {
+    char *str, *front, *tail;
+    int ret = -1;
+    int i = 0;
+
+    str = voice_api_GetConfig(group, item);
+    if(str == NULL) {
+        goto retval;
+    }
+
+    front = str;
+
+    while(i < len) {
+        tail = strstr(front, ",");
+        if(tail == NULL) {
+            tail = strstr(front, ";");
+        }
+
+        if(tail == NULL) {
+            ALOGE("failed to get byte-array value: %s-%s-No%d", group, item, i + 1);
+            goto retval;
+        }
+
+        *tail++ = 0;
+        *(arr+i) = (strtol(front, NULL, 16)) & 0xff;
+        front = tail;
+        i++;
+    }
+
+    if(i == len)ret = i;
+
+retval:
+    return ret;
+}
+
+int voice_conf_exit()
+{
+    struct tVoice_Hidraw_Settings *item, *p;
+    int i;
+
+    item = gConfig;
+    while(item)
+    {
+        p = item;
+        item = item->next;
+        free(p);
+    }
+
+    if(gContent)
+        free(gContent);
+    return 0;
+}
+
+
diff --git a/rtkbt/addon/vr_bee2_hidraw_daemon/hidraw/config.h b/rtkbt/addon/vr_bee2_hidraw_daemon/hidraw/config.h
new file mode 100755
index 0000000..eeb868a
--- /dev/null
+++ b/rtkbt/addon/vr_bee2_hidraw_daemon/hidraw/config.h
@@ -0,0 +1,34 @@
+#ifndef CONFIG_H
+#define CONFIG_H
+
+typedef struct tVoice_Hidraw_Settings
+{
+    struct tVoice_Hidraw_Settings * next;
+    char * group;
+    char * item;
+    char * val;
+} tVoice_Hidraw_Settings;
+
+#define CONFIG_GROUP_RCU  "Rcu"
+#define CONFIG_ITEM_RCU_VID  "Vid"
+#define CONFIG_ITEM_RCU_PID  "Pid"
+#define CONFIG_ITEM_RCU_VER  "Ver"
+
+#define CONFIG_GROUP_REPORTID  "ReportID"
+#define CONFIG_ITEM_REPORTID_KEY  "Key"
+#define CONFIG_ITEM_REPORTID_DATA  "Data"
+#define CONFIG_ITEM_REPORTID_CMD  "Cmd"
+
+#define CONFIG_GROUP_REPORTVALUE  "ReportValue"
+#define CONFIG_ITEM_REPORTVALUE_KEYDOWNLEN  "KeyDownLen"
+#define CONFIG_ITEM_REPORTVALUE_KEYDOWN  "KeyDown"
+#define CONFIG_ITEM_REPORTVALUE_KEYUPLEN  "KeyUpLen"
+#define CONFIG_ITEM_REPORTVALUE_KEYUP  "KeyUp"
+
+#define CONFIG_GROUP_SETTINGS  "Settings"
+#define CONFIG_ITEM_SETTINGS_DECODETYPE "DecodeType"
+#define CONFIG_ITEM_SETTINGS_DATAMASK "DataMask"
+#define CONFIG_ITEM_SETTINGS_AUTOCMD "AutoCmd"
+
+
+#endif
diff --git a/rtkbt/addon/vr_bee2_hidraw_daemon/hidraw/get_voice_app.c b/rtkbt/addon/vr_bee2_hidraw_daemon/hidraw/get_voice_app.c
new file mode 100755
index 0000000..16e6720
--- /dev/null
+++ b/rtkbt/addon/vr_bee2_hidraw_daemon/hidraw/get_voice_app.c
@@ -0,0 +1,234 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include "string.h"
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#include <cutils/log.h>
+#include "get_voice_app.h"
+#include "msbc.h"
+
+
+#define DECODE_SIZE  58
+#define VOICE_MTU                   60
+#define VOICDE_DECODE_UNIT          (VOICE_MTU*4)
+
+
+static uint8* _pVoiceBuf = NULL;
+static uint8* _pdecodeBuf = NULL;
+static uint8* _pdecodeFrameBuf = NULL;
+int voice_fd = -1;
+int voice_fd_origin = -1;
+int voice_fd_wav = -1;
+sbc_t t_sbc;
+static int file_index = 0;
+
+struct wavfile
+{
+    char    id[4];          // should always contain "RIFF"
+    int     totallength;    // total file length minus 8
+    char    wavefmt[8];     // should be "WAVEfmt "
+    int     format;         // 16 for PCM format
+    short   pcm;            // 1 for PCM format
+    short   channels;       // channels
+    int     frequency;      // sampling frequency, 16000 in this case
+    int     bytes_per_second;
+    short   bytes_by_capture;
+    short   bits_per_sample;
+    char    data[4];        // should always contain "data"
+    int     bytes_in_data;
+};
+
+void write_wav_header(char* name, int samples, int channels){
+    struct wavfile filler;
+    FILE *pcm_fd;
+	FILE *wav_fd;
+	char record_name[50] = {0};
+	int size;
+	char ch;
+
+	ALOGE("Start to convert pcm to wav\n");
+    strncpy(filler.id, "RIFF", 4);
+//    filler.totallength = (samples * channels) + sizeof(struct wavfile) - 8; //81956
+    strncpy(filler.wavefmt, "WAVEfmt ", 8);
+    filler.format = 16;
+    filler.pcm = 1;
+    filler.channels = channels;
+    filler.frequency = 16000;
+    filler.bits_per_sample = 16;
+    filler.bytes_per_second = filler.channels * filler.frequency * filler.bits_per_sample/8;
+    filler.bytes_by_capture = filler.channels*filler.bits_per_sample/8;
+//    filler.bytes_in_data = samples * filler.channels * filler.bits_per_sample/8;    
+    strncpy(filler.data, "data", 4);
+
+	pcm_fd = fopen(name, "rb");
+	fseek(pcm_fd, 0, SEEK_END);
+	size = ftell(pcm_fd);
+	fseek(pcm_fd, 0, SEEK_SET);
+	
+	filler.bytes_in_data = size;
+	filler.totallength = size + sizeof(filler) - 8;
+#if 0	// just print data
+	printf("File description header: %s\n", filler.id);
+	printf("Size of file: %d\n", filler.totallength);
+	printf("WAV Format description header: %s\n", filler.wavefmt);
+	printf("Size of WAVE section chunck: %d\n", filler.format);
+	printf("WAVE type format: %d\n", filler.pcm);
+	printf("Number of channels: %d\n", filler.channels);
+	printf("Samples per second: %d\n", filler.frequency);
+	printf("Bytes per second: %d\n", filler.bytes_per_second);
+	printf("Block alignment: %d\n", filler.bytes_by_capture);
+	printf("Bits per sample: %d\n", filler.bits_per_sample);
+	printf("Data description header: %s\n", filler.data);
+	printf("Size of data: %d\n", filler.bytes_in_data);
+#endif
+
+
+    sprintf(record_name,"voice_msbc_wav%d.wav",file_index);
+
+	// store wav header
+    wav_fd = fopen(record_name, "wb");
+    fwrite(&filler, 1, sizeof(filler), wav_fd);
+	fclose(wav_fd);
+
+	// store voice data
+	wav_fd = fopen(record_name, "ab");
+    while(!feof(pcm_fd)) { 
+        fread(&ch, 1, 1, pcm_fd);
+        
+        if(!feof(pcm_fd)) { 
+            fwrite(&ch, 1, 1, wav_fd);
+        }
+    } 
+
+    fclose(pcm_fd);
+	fclose(wav_fd);
+}
+
+void RS_init_sbc()
+{
+    //msbc
+    sbc_init (&t_sbc, 0L);  
+}
+
+void RS_voice_app_create_origin_output()
+{
+    char record_name[50] = {0};
+
+    sprintf(record_name,"/data/vr/voice_msbc_origin%d",file_index);
+ 
+    voice_fd_origin =  open (record_name, O_WRONLY | O_CREAT |O_TRUNC, 0644);
+
+    
+    if(voice_fd_origin < 0)
+    {
+        ALOGE("can't open record origin  file:%s ",record_name);
+    }
+
+	RS_init_sbc();
+	
+	return;
+}
+
+void RS_voice_app_create_output()
+{
+    char record_name[50] = {0}; 
+    sprintf(record_name,"/data/vr/voice_msbc%d",file_index);
+
+    voice_fd =  open (record_name, O_WRONLY | O_CREAT |O_TRUNC, 0644);
+
+    if(voice_fd < 0)
+    {
+        ALOGE("can't open record file:%s ",record_name);
+    }
+
+
+	return;
+}
+
+int RS_stop_voice_stream_data (void)
+{
+	char record_name[50] = {0};
+	
+    ALOGE ("in\r\n");
+	
+    if (voice_fd > 0 && -1 == close (voice_fd)  )
+    {
+        ALOGE ("close voice file fail\r\n");
+    }
+
+    if (voice_fd_origin > 0 && -1 == close (voice_fd_origin)  )
+    {
+        ALOGE ("close voice file fail\r\n");
+    }
+
+    voice_fd = 0;
+    voice_fd_origin = 0;
+ 
+    sprintf(record_name,"voice_msbc%d",file_index);
+
+	//write_wav_header(record_name, 16000, 1);
+
+    sbc_finish (&t_sbc);
+
+	file_index = ((++file_index)>= 10) ? 0 : file_index;
+	
+    return 0;
+}
+
+int RS_write_decode_buf(uint8* pu_decode, ssize_t len)
+{
+        if (voice_fd > 0)
+        {
+            write (voice_fd, pu_decode, len);
+            return 0;
+        }
+        return -1;
+}
+
+int RS_deal_voice_stream_data(const uint8* input, size_t voice_buf_size, unsigned char* output, size_t output_buf_size, int* frame_len)
+{
+    int framelen;
+
+//    RS_init_sbc();
+
+    
+
+    if (NULL == input || 0 == voice_buf_size)
+    {
+        ALOGE ("input is null \r\n");
+        return -1;
+    }
+
+
+    if (NULL == output || 0 == output_buf_size)
+    {
+        ALOGE ("output is null");
+        return -1;
+    }
+
+    if(voice_buf_size != VOICE_MTU) {
+        ALOGE ("input size error: %d", voice_buf_size);
+        return -1;
+    }
+
+
+    write(voice_fd_origin, input, voice_buf_size);
+    if (input[0] == 0x01 && input[2] == 0xad)
+    { 
+        framelen = sbc_decode (&t_sbc, &input[2], DECODE_SIZE, output, output_buf_size,frame_len);
+        if (framelen <= 0)
+        {
+            ALOGE("fail to decode");
+            return -1;
+        }
+        RS_write_decode_buf(output, *frame_len);
+        return 0;
+    }else {
+        ALOGE("msbc format error !!!");
+        return -1;
+    }
+}
+    
+
diff --git a/rtkbt/addon/vr_bee2_hidraw_daemon/hidraw/get_voice_app.h b/rtkbt/addon/vr_bee2_hidraw_daemon/hidraw/get_voice_app.h
new file mode 100755
index 0000000..64cc362
--- /dev/null
+++ b/rtkbt/addon/vr_bee2_hidraw_daemon/hidraw/get_voice_app.h
@@ -0,0 +1,22 @@
+
+//#define  MSBC_SUPPORT
+#define  VOICE_KEY_DOWN 0x3e
+#define  VOICE_BUFFER_REPORT_ID    0x5a
+#define  ADD_FOR_VOICE_CONTROL
+#define  VOICE_FILE_WITH_MSBC           "/tmp/voice_msbc"
+#define  VOICE_FILE_WITH_NO_MSBC    "/tmp/voice_no_msbc"
+
+typedef unsigned char uint8;
+typedef unsigned short uint16;
+typedef unsigned int uint32;
+typedef signed char int8;
+typedef signed short int16;
+typedef signed int int32;
+
+void RS_voice_app_create_origin_output();
+
+int RS_deal_voice_stream_data(const uint8* input, size_t voice_buf_size, unsigned char* output, size_t output_buf_size, int* frame_len);
+
+int RS_stop_voice_stream_data (void);
+
+void RS_voice_app_create_output();
diff --git a/rtkbt/addon/vr_bee2_hidraw_daemon/hidraw/msbc/msbc.c b/rtkbt/addon/vr_bee2_hidraw_daemon/hidraw/msbc/msbc.c
new file mode 100755
index 0000000..9ee5045
--- /dev/null
+++ b/rtkbt/addon/vr_bee2_hidraw_daemon/hidraw/msbc/msbc.c
@@ -0,0 +1,1766 @@
+/*
+ *
+ *  Bluetooth low-complexity, subband codec (SBC) library
+ *
+ *  Copyright (C) 2004-2006  Marcel Holtmann <marcel@holtmann.org>
+ *  Copyright (C) 2004-2005  Henryk Ploetz <henryk@ploetzli.ch>
+ *  Copyright (C) 2005-2006  Brad Midgley <bmidgley@xmission.com>
+ *
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Lesser General Public
+ *  License as published by the Free Software Foundation; either
+ *  version 2.1 of the License, or (at your option) any later version.
+ *
+ *  This library is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with this library; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+/* todo items:
+
+  use a log2 table for byte integer scale factors calculation (sum log2 results for high and low bytes)
+  fill bitpool by 16 bits instead of one at a time in bits allocation/bitpool generation
+  port to the dsp
+  don't consume more bytes than passed into the encoder
+
+*/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+
+
+#include <errno.h>
+
+//#include <stdint.h>
+#include <malloc.h>
+#include <string.h>
+//#include <stdlib.h>
+#include <sys/types.h>
+
+#include "msbc.h"
+#include "msbc_math.h"
+#include "msbc_tables.h"
+#include "cutils/log.h"
+
+
+#define SBC_SYNCWORD    0xAD
+#define SBC_POOLTAG     'CBSR'
+
+/* sampling frequency */
+#define SBC_FS_16   0x00
+#define SBC_FS_32   0x01
+#define SBC_FS_44   0x02
+#define SBC_FS_48   0x03
+
+/* nrof_blocks */
+#define SBC_NB_4    0x00
+#define SBC_NB_8    0x01
+#define SBC_NB_12   0x02
+#define SBC_NB_16   0x03
+
+/* channel mode */
+#define SBC_CM_MONO     0x00
+#define SBC_CM_DUAL_CHANNEL 0x01
+#define SBC_CM_STEREO       0x02
+#define SBC_CM_JOINT_STEREO 0x03
+
+/* allocation mode */
+#define SBC_AM_LOUDNESS     0x00
+#define SBC_AM_SNR      0x01
+
+/* subbands */
+#define SBC_SB_4    0x00
+#define SBC_SB_8    0x01
+
+#define SBC_ALIGN_BITS 4
+#define SBC_ALIGN_MASK ((1 << (SBC_ALIGN_BITS)) - 1)
+
+
+typedef unsigned short  uint16_t;
+typedef unsigned char uint8_t;
+typedef short int16_t;
+typedef unsigned int  u_int32_t;
+
+#ifndef UINT
+typedef unsigned int   UINT;
+#endif
+
+
+#if defined(WIN32) && !defined(__cplusplus)
+
+#define inline __inline
+
+#endif
+
+
+/*
+static __inline  void sbc_synthesize_four(struct sbc_decoder_state *state,
+        struct sbc_frame *frame, int ch, int blk);
+*/
+
+
+/* This structure contains an unpacked SBC frame.
+   Yes, there is probably quite some unused space herein */
+struct sbc_frame
+{
+    uint16_t sampling_frequency;    /* in kHz */
+    unsigned char blocks;
+    enum {
+        MONO        = SBC_CM_MONO,
+        DUAL_CHANNEL    = SBC_CM_DUAL_CHANNEL,
+        STEREO      = SBC_CM_STEREO,
+        JOINT_STEREO    = SBC_CM_JOINT_STEREO
+    } channel_mode;
+    uint8_t channels;
+    enum {
+        LOUDNESS    = SBC_AM_LOUDNESS,
+        SNR     = SBC_AM_SNR
+    } allocation_method;
+    uint8_t subbands;
+    uint8_t bitpool;
+    uint8_t join;               /* bit number x set means joint stereo has been used in subband x */
+    int scale_factor[2][8];     /* only the lower 4 bits of every element are to be used */
+    uint16_t audio_sample[16][2][8];    /* raw integer subband samples in the frame */
+
+    int sb_sample_f[16][2][8];
+    int sb_sample[16][2][8];        /* modified subband samples */
+    short pcm_sample[2][16*8];      /* original pcm audio samples */
+};
+
+struct sbc_decoder_state {
+    int subbands;
+    long long V[2][170];
+    int offset[2][16];
+};
+
+struct sbc_encoder_state {
+    int subbands;
+    int32_t X[2][80];
+};
+
+/*
+ * Calculates the CRC-8 of the first len bits in data
+ */
+static const uint8_t crc_table[256] = {
+    0x00, 0x1D, 0x3A, 0x27, 0x74, 0x69, 0x4E, 0x53,
+    0xE8, 0xF5, 0xD2, 0xCF, 0x9C, 0x81, 0xA6, 0xBB,
+    0xCD, 0xD0, 0xF7, 0xEA, 0xB9, 0xA4, 0x83, 0x9E,
+    0x25, 0x38, 0x1F, 0x02, 0x51, 0x4C, 0x6B, 0x76,
+    0x87, 0x9A, 0xBD, 0xA0, 0xF3, 0xEE, 0xC9, 0xD4,
+    0x6F, 0x72, 0x55, 0x48, 0x1B, 0x06, 0x21, 0x3C,
+    0x4A, 0x57, 0x70, 0x6D, 0x3E, 0x23, 0x04, 0x19,
+    0xA2, 0xBF, 0x98, 0x85, 0xD6, 0xCB, 0xEC, 0xF1,
+    0x13, 0x0E, 0x29, 0x34, 0x67, 0x7A, 0x5D, 0x40,
+    0xFB, 0xE6, 0xC1, 0xDC, 0x8F, 0x92, 0xB5, 0xA8,
+    0xDE, 0xC3, 0xE4, 0xF9, 0xAA, 0xB7, 0x90, 0x8D,
+    0x36, 0x2B, 0x0C, 0x11, 0x42, 0x5F, 0x78, 0x65,
+    0x94, 0x89, 0xAE, 0xB3, 0xE0, 0xFD, 0xDA, 0xC7,
+    0x7C, 0x61, 0x46, 0x5B, 0x08, 0x15, 0x32, 0x2F,
+    0x59, 0x44, 0x63, 0x7E, 0x2D, 0x30, 0x17, 0x0A,
+    0xB1, 0xAC, 0x8B, 0x96, 0xC5, 0xD8, 0xFF, 0xE2,
+    0x26, 0x3B, 0x1C, 0x01, 0x52, 0x4F, 0x68, 0x75,
+    0xCE, 0xD3, 0xF4, 0xE9, 0xBA, 0xA7, 0x80, 0x9D,
+    0xEB, 0xF6, 0xD1, 0xCC, 0x9F, 0x82, 0xA5, 0xB8,
+    0x03, 0x1E, 0x39, 0x24, 0x77, 0x6A, 0x4D, 0x50,
+    0xA1, 0xBC, 0x9B, 0x86, 0xD5, 0xC8, 0xEF, 0xF2,
+    0x49, 0x54, 0x73, 0x6E, 0x3D, 0x20, 0x07, 0x1A,
+    0x6C, 0x71, 0x56, 0x4B, 0x18, 0x05, 0x22, 0x3F,
+    0x84, 0x99, 0xBE, 0xA3, 0xF0, 0xED, 0xCA, 0xD7,
+    0x35, 0x28, 0x0F, 0x12, 0x41, 0x5C, 0x7B, 0x66,
+    0xDD, 0xC0, 0xE7, 0xFA, 0xA9, 0xB4, 0x93, 0x8E,
+    0xF8, 0xE5, 0xC2, 0xDF, 0x8C, 0x91, 0xB6, 0xAB,
+    0x10, 0x0D, 0x2A, 0x37, 0x64, 0x79, 0x5E, 0x43,
+    0xB2, 0xAF, 0x88, 0x95, 0xC6, 0xDB, 0xFC, 0xE1,
+    0x5A, 0x47, 0x60, 0x7D, 0x2E, 0x33, 0x14, 0x09,
+    0x7F, 0x62, 0x45, 0x58, 0x0B, 0x16, 0x31, 0x2C,
+    0x97, 0x8A, 0xAD, 0xB0, 0xE3, 0xFE, 0xD9, 0xC4
+};
+
+static uint8_t sbc_crc8(const uint8_t * data, size_t len)
+{
+    uint8_t crc = 0x0f;
+    size_t i;
+    uint8_t octet;
+
+    for (i = 0; i < len / 8; i++)
+        crc = crc_table[crc ^ data[i]];
+
+    octet = data[i];
+    for (i = 0; i < len % 8; i++)
+    {
+        char bit = ((octet ^ crc) & 0x80) >> 7;
+
+        crc = ((crc & 0x7f) << 1) ^ (bit ? 0x1d : 0);
+
+        octet = octet << 1;
+    }
+
+    return crc;
+}
+
+/*
+ * Code straight from the spec to calculate the bits array
+ * Takes a pointer to the frame in question, a pointer to the bits array and the sampling frequency (as 2 bit integer)
+ */
+static void sbc_calculate_bits(const struct sbc_frame *frame, int (*bits)[8], uint8_t sf)
+{
+    if (frame->channel_mode == MONO || frame->channel_mode == DUAL_CHANNEL)
+    {
+        int bitneed[2][8], loudness, max_bitneed, bitcount, slicecount, bitslice;
+        int ch, sb;
+
+        for (ch = 0; ch < frame->channels; ch++)
+        {
+            if (frame->allocation_method == SNR)
+            {
+                for (sb = 0; sb < frame->subbands; sb++)
+                {
+                    bitneed[ch][sb] = frame->scale_factor[ch][sb];
+                }
+            }
+
+            else
+            {
+                for (sb = 0; sb < frame->subbands; sb++)
+                {
+                    if (frame->scale_factor[ch][sb] == 0)
+                    {
+                        bitneed[ch][sb] = -5;
+                    }
+                    else
+                    {
+                        if (frame->subbands == 4)
+                        {
+                            loudness = frame->scale_factor[ch][sb] - sbc_offset4[sf][sb];
+                        }
+
+                        else
+                        {
+                            loudness = frame->scale_factor[ch][sb] - sbc_offset8[sf][sb];
+                        }
+
+                        if (loudness > 0)
+                        {
+                            bitneed[ch][sb] = loudness / 2;
+                        }
+
+                        else
+                        {
+                            bitneed[ch][sb] = loudness;
+                        }
+                    }
+                }
+            }
+
+            max_bitneed = 0;
+            for (sb = 0; sb < frame->subbands; sb++)
+            {
+                if (bitneed[ch][sb] > max_bitneed)
+                    max_bitneed = bitneed[ch][sb];
+            }
+
+            bitcount = 0;
+            slicecount = 0;
+            bitslice = max_bitneed + 1;
+            do
+            {
+                bitslice--;
+                bitcount += slicecount;
+                slicecount = 0;
+                for (sb = 0; sb < frame->subbands; sb++)
+                {
+                    if ((bitneed[ch][sb] > bitslice + 1) && (bitneed[ch][sb] < bitslice + 16))
+                    {
+                        slicecount++;
+                    }
+
+                    else if (bitneed[ch][sb] == bitslice + 1)
+                    {
+                        slicecount += 2;
+                    }
+                }
+            } while (bitcount + slicecount < frame->bitpool);
+
+            if (bitcount + slicecount == frame->bitpool)
+            {
+                bitcount += slicecount;
+                bitslice--;
+            }
+
+            for (sb = 0; sb < frame->subbands; sb++)
+            {
+                if (bitneed[ch][sb] < bitslice + 2)
+                {
+                    bits[ch][sb] = 0;
+                }
+
+                else
+                {
+                    bits[ch][sb] = bitneed[ch][sb] - bitslice;
+                    if (bits[ch][sb] > 16)
+                        bits[ch][sb] = 16;
+                }
+            }
+
+            sb = 0;
+            while (bitcount < frame->bitpool && sb < frame->subbands)
+            {
+                if ((bits[ch][sb] >= 2) && (bits[ch][sb] < 16))
+                {
+                    bits[ch][sb]++;
+                    bitcount++;
+                }
+
+                else if ((bitneed[ch][sb] == bitslice + 1) && (frame->bitpool > bitcount + 1))
+                {
+                    bits[ch][sb] = 2;
+                    bitcount += 2;
+                }
+                sb++;
+            }
+
+            sb = 0;
+            while (bitcount < frame->bitpool && sb < frame->subbands)
+            {
+                if (bits[ch][sb] < 16)
+                {
+                    bits[ch][sb]++;
+                    bitcount++;
+                }
+                sb++;
+            }
+
+        }
+
+    }
+
+    else if (frame->channel_mode == STEREO || frame->channel_mode == JOINT_STEREO)
+    {
+        int bitneed[2][8], loudness, max_bitneed, bitcount, slicecount, bitslice;
+        int ch, sb;
+
+        if (frame->allocation_method == SNR)
+        {
+            for (ch = 0; ch < 2; ch++) {
+                for (sb = 0; sb < frame->subbands; sb++)
+                {
+                    bitneed[ch][sb] = frame->scale_factor[ch][sb];
+                }
+            }
+        }
+
+        else
+        {
+            for (ch = 0; ch < 2; ch++)
+            {
+                for (sb = 0; sb < frame->subbands; sb++)
+                {
+                    if (frame->scale_factor[ch][sb] == 0)
+                    {
+                        bitneed[ch][sb] = -5;
+                    }
+
+                    else
+                    {
+                        if (frame->subbands == 4)
+                        {
+                            loudness = frame->scale_factor[ch][sb] - sbc_offset4[sf][sb];
+                        }
+
+                        else
+                        {
+                            loudness = frame->scale_factor[ch][sb] - sbc_offset8[sf][sb];
+                        }
+
+                        if (loudness > 0)
+                        {
+                            bitneed[ch][sb] = loudness / 2;
+                        }
+
+                        else
+                        {
+                            bitneed[ch][sb] = loudness;
+                        }
+                    }
+                }
+            }
+        }
+
+        max_bitneed = 0;
+        for (ch = 0; ch < 2; ch++)
+        {
+            for (sb = 0; sb < frame->subbands; sb++)
+            {
+                if (bitneed[ch][sb] > max_bitneed)
+                    max_bitneed = bitneed[ch][sb];
+            }
+        }
+
+        bitcount = 0;
+        slicecount = 0;
+        bitslice = max_bitneed + 1;
+        do {
+            bitslice--;
+            bitcount += slicecount;
+            slicecount = 0;
+            for (ch = 0; ch < 2; ch++)
+            {
+                for (sb = 0; sb < frame->subbands; sb++)
+                {
+                    if ((bitneed[ch][sb] > bitslice + 1) && (bitneed[ch][sb] < bitslice + 16))
+                    {
+                        slicecount++;
+                    }
+
+                    else if (bitneed[ch][sb] == bitslice + 1)
+                    {
+                        slicecount += 2;
+                    }
+                }
+            }
+        } while (bitcount + slicecount < frame->bitpool);
+
+        if (bitcount + slicecount == frame->bitpool)
+        {
+            bitcount += slicecount;
+            bitslice--;
+        }
+
+        for (ch = 0; ch < 2; ch++)
+        {
+            for (sb = 0; sb < frame->subbands; sb++)
+            {
+                if (bitneed[ch][sb] < bitslice + 2)
+                {
+                    bits[ch][sb] = 0;
+                }
+
+                else
+                {
+                    bits[ch][sb] = bitneed[ch][sb] - bitslice;
+                    if (bits[ch][sb] > 16)
+                        bits[ch][sb] = 16;
+                }
+            }
+        }
+
+        ch = 0;
+        sb = 0;
+        while ((bitcount < frame->bitpool) && (sb < frame->subbands))
+        {
+            if ((bits[ch][sb] >= 2) && (bits[ch][sb] < 16))
+            {
+                bits[ch][sb]++;
+                bitcount++;
+            }
+
+            else if ((bitneed[ch][sb] == bitslice + 1) && (frame->bitpool > bitcount + 1))
+            {
+                bits[ch][sb] = 2;
+                bitcount += 2;
+            }
+            if (ch == 1)
+            {
+                ch = 0;
+                sb++;
+            }
+            else
+            {
+                ch = 1;
+            }
+        }
+
+        ch = 0;
+        sb = 0;
+        while ((bitcount < frame->bitpool) && (sb < frame->subbands))
+        {
+            if (bits[ch][sb] < 16)
+            {
+                bits[ch][sb]++;
+                bitcount++;
+            }
+            if (ch == 1)
+            {
+                ch = 0;
+                sb++;
+            }
+
+            else
+            {
+                ch = 1;
+            }
+        }
+
+    }
+}
+
+/*
+ * Unpacks a SBC frame at the beginning of the stream in data,
+ * which has at most len bytes into frame.
+ * Returns the length in bytes of the packed frame, or a negative
+ * value on error. The error codes are:
+ *
+ *  -1   Data stream too short
+ *  -2   Sync byte incorrect
+ *  -3   CRC8 incorrect
+ *  -4   Bitpool value out of bounds
+ */
+static int sbc_unpack_frame(const uint8_t * data, struct sbc_frame *frame, size_t len)
+{
+    UINT consumed;
+    /* Will copy the parts of the header that are relevant to crc calculation here */
+    uint8_t crc_header[11] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
+    int crc_pos = 0;
+    int32_t temp;
+
+    uint8_t sf;     /* sampling_frequency, temporarily needed as array index */
+
+//  int audio_sample;
+    int ch, sb, blk, bit;   /* channel, subband, block and bit standard counters */
+    int bits[2][8];     /* bits distribution */
+    int levels[2][8];   /* levels derived from that */
+
+    if (len < 4)
+    {
+        //DbgPrint("Exit when len < 4\n");
+        return -1;
+    }
+
+    if (data[0] != SBC_SYNCWORD)
+    {
+        //DbgPrint("Exit when data[0] != SBC_SYNCWORD\n");
+        return -2;
+    }
+
+#if 0
+    sf = (data[1] >> 6) & 0x03;
+    switch (sf) {
+    case SBC_FS_16:
+        frame->sampling_frequency = 16000;
+        break;
+    case SBC_FS_32:
+        frame->sampling_frequency = 32000;
+        break;
+    case SBC_FS_44:
+        frame->sampling_frequency = 44100;
+        break;
+    case SBC_FS_48:
+        frame->sampling_frequency = 48000;
+        break;
+    }
+
+    switch ((data[1] >> 4) & 0x03) {
+    case SBC_NB_4:
+        frame->blocks = 4;
+        break;
+    case SBC_NB_8:
+        frame->blocks = 8;
+        break;
+    case SBC_NB_12:
+        frame->blocks = 12;
+        break;
+    case SBC_NB_16:
+        frame->blocks = 16;
+        break;
+    }
+
+    frame->channel_mode = (data[1] >> 2) & 0x03;
+    switch (frame->channel_mode) {
+    case MONO:
+        frame->channels = 1;
+        break;
+    case DUAL_CHANNEL:  /* fall-through */
+    case STEREO:
+    case JOINT_STEREO:
+        frame->channels = 2;
+        break;
+    }
+
+    frame->allocation_method = (data[1] >> 1) & 0x01;
+    frame->subbands = (data[1] & 0x01) ? 8 : 4;
+    frame->bitpool = data[2];
+#endif
+
+    frame->sampling_frequency = 16000;
+    frame->blocks = 15;
+    frame->channel_mode = MONO;
+    frame->channels = 1;
+    frame->allocation_method  = SBC_AM_LOUDNESS;
+    frame->subbands = 8;
+    frame->bitpool = 26;
+
+
+    if (((frame->channel_mode == MONO || frame->channel_mode == DUAL_CHANNEL)
+         && frame->bitpool > 16 * frame->subbands)
+        || ((frame->channel_mode == STEREO || frame->channel_mode == JOINT_STEREO)
+        && frame->bitpool > 32 * frame->subbands))
+    {
+        //DbgPrint("Exit when frame->mode == MONO || frame->mode == DUAL_CHANNEL) &&"
+        //  "frame->bitpool > 16 * frame->subbands\n");
+        return -4;
+    }
+
+    /* data[3] is crc, we're checking it later */
+    consumed = 32;
+#if 1
+    crc_header[0] = data[1];
+    crc_header[1] = data[2];
+#endif
+
+#if 0
+    crc_header[0] = 0x31;
+    crc_header[1] = 0x1a;
+#endif
+
+    crc_pos = 16;
+
+    if (frame->channel_mode == JOINT_STEREO)
+    {
+        if (len * 8 < consumed + frame->subbands)
+            return -1;
+
+        frame->join = 0x00;
+        for (sb = 0; sb < frame->subbands - 1; sb++) {
+            frame->join |= ((data[4] >> (7 - sb)) & 0x01) << sb;
+        }
+        if (frame->subbands == 4) {
+            crc_header[crc_pos / 8] = data[4] & 0xf0;
+        } else {
+            crc_header[crc_pos / 8] = data[4];
+        }
+
+        consumed += frame->subbands;
+        crc_pos += frame->subbands;
+    }
+
+    if (len * 8 < consumed + (4 * frame->subbands * frame->channels))
+    {
+        //DbgPrint("len * 8 < consumed + (4 * frame->subbands * frame->channels\n");
+        return -1;
+    }
+
+    for (ch = 0; ch < frame->channels; ch++)
+    {
+        for (sb = 0; sb < frame->subbands; sb++)
+        {
+            /* FIXME assert(consumed % 4 == 0); */
+            frame->scale_factor[ch][sb] = (data[consumed >> 3] >> (4 - (consumed & 0x7))) & 0x0F;
+            crc_header[crc_pos >> 3] |= frame->scale_factor[ch][sb] << (4 - (crc_pos & 0x7));
+
+            consumed += 4;
+            crc_pos += 4;
+        }
+    }
+
+    if (data[3] != sbc_crc8(crc_header, crc_pos))
+    {
+        ALOGD("sbc_crc %02x -> %02x\n",data[3],sbc_crc8(crc_header, crc_pos));
+        return -3;
+    }
+
+    sf = SBC_FS_16;
+    sbc_calculate_bits(frame, bits, sf);
+
+    for (ch = 0; ch < frame->channels; ch++)
+    {
+        for (sb = 0; sb < frame->subbands; sb++)
+        {
+            levels[ch][sb] = (1 << bits[ch][sb]) - 1;
+        }
+    }
+#if 0
+    for (blk = 0; blk < frame->blocks; blk++)
+    {
+        for (ch = 0; ch < frame->channels; ch++)
+        {
+            for (sb = 0; sb < frame->subbands; sb++)
+            {
+                if (levels[ch][sb] > 0)
+                {
+                    audio_sample = 0;
+                    for (bit = 0; bit < bits[ch][sb]; bit++)
+                    {
+                        if (consumed > len * 8)
+                        {
+                            LogEvent("Exit when consumed > len * 8\n");
+                            return -1;
+                        }
+
+                        if ((data[consumed >> 3] >> (7 - (consumed & 0x7))) & 0x01)
+                            audio_sample |= 1 << (bits[ch][sb] - bit - 1);
+
+                        consumed++;
+                    }
+
+                    frame->sb_sample[blk][ch][sb] =
+                        (((audio_sample << 1) | 1) << frame->scale_factor[ch][sb]) /
+                        levels[ch][sb] - (1 << frame->scale_factor[ch][sb]);
+                }
+
+                else
+                    frame->sb_sample[blk][ch][sb] = 0;
+            }
+        }
+    }
+#endif
+
+#if 1
+
+    for (blk = 0; blk < frame->blocks; blk++)
+    {
+        for (ch = 0; ch < frame->channels; ch++)
+        {
+            for (sb = 0; sb < frame->subbands; sb++)
+            {
+                frame->audio_sample[blk][ch][sb] = 0;
+                if (bits[ch][sb] == 0)
+                    continue;
+
+                for (bit = 0; bit < bits[ch][sb]; bit++)
+                {
+                    int b;  /* A bit */
+                    if (consumed > len * 8)
+                        return -1;
+
+                    b = (data[consumed >> 3] >> (7 - (consumed & 0x7))) & 0x01;
+                    frame->audio_sample[blk][ch][sb] |= b << (bits[ch][sb] - bit - 1);
+
+                    consumed++;
+                }
+            }
+        }
+    }
+
+    for (blk = 0; blk < frame->blocks; blk++)
+    {
+        for (ch = 0; ch < frame->channels; ch++)
+        {
+            for (sb = 0; sb < frame->subbands; sb++)
+            {
+                if (levels[ch][sb] > 0)
+                {
+                    frame->sb_sample[blk][ch][sb] =
+                        (((frame->audio_sample[blk][ch][sb] << 16) | 0x8000) / levels[ch][sb]) - 0x8000;
+
+                    frame->sb_sample[blk][ch][sb] >>= 3;
+                    frame->sb_sample[blk][ch][sb] = (frame->sb_sample[blk][ch][sb] << (frame->scale_factor[ch][sb] + 1)); // Q13
+                }
+                else
+                {
+                    frame->sb_sample[blk][ch][sb] = 0;
+                }
+            }
+        }
+    }
+#endif
+
+    if (frame->channel_mode == JOINT_STEREO)
+    {
+        for (blk = 0; blk < frame->blocks; blk++)
+        {
+            for (sb = 0; sb < frame->subbands; sb++)
+            {
+                if (frame->join & (0x01 << sb)) {
+                    temp = frame->sb_sample[blk][0][sb] + frame->sb_sample[blk][1][sb];
+                    frame->sb_sample[blk][1][sb] = frame->sb_sample[blk][0][sb] - frame->sb_sample[blk][1][sb];
+                    frame->sb_sample[blk][0][sb] = temp;
+                }
+            }
+        }
+    }
+
+    if ((consumed & 0x7) != 0)
+        consumed += 8 - (consumed & 0x7);
+
+
+    return consumed >> 3;
+}
+
+static void sbc_decoder_init(struct sbc_decoder_state *state, const struct sbc_frame *frame)
+{
+    int i, ch;
+
+    memset(state->V, 0, sizeof(state->V));
+    state->subbands = frame->subbands;
+
+    for (ch = 0; ch < 2; ch++)
+        for (i = 0; i < frame->subbands * 2; i++)
+            state->offset[ch][i] = (10 * i + 10);
+}
+
+static __inline void sbc_synthesize_four(struct sbc_decoder_state *state,
+                struct sbc_frame *frame, int ch, int blk)
+{
+    int i, j, k, idx;
+    sbc_extended_t res;
+
+    for(i = 0; i < 8; i++) {
+        /* Shifting */
+        state->offset[ch][i]--;
+        if(state->offset[ch][i] < 0) {
+            state->offset[ch][i] = 79;
+            for(j = 0; j < 9; j++) {
+                state->V[ch][j+80] = state->V[ch][j];
+            }
+        }
+    }
+
+
+    for(i = 0; i < 8; i++) {
+        /* Distribute the new matrix value to the shifted position */
+        SBC_FIXED_0(res);
+        for (j = 0; j < 4; j++) {
+            MULA(res, synmatrix4[i][j], frame->sb_sample[blk][ch][j]);
+        }
+        state->V[ch][state->offset[ch][i]] = SCALE4_STAGED1(res);
+    }
+
+    /* Compute the samples */
+    for(idx = 0, i = 0; i < 4; i++) {
+        k = (i + 4) & 0xf;
+        SBC_FIXED_0(res);
+        for(j = 0; j < 10; idx++) {
+        MULA(res, state->V[ch][state->offset[ch][i]+j++], sbc_proto_4_40m0[idx]);
+            MULA(res, state->V[ch][state->offset[ch][k]+j++], sbc_proto_4_40m1[idx]);
+        }
+        /* Store in output */
+        frame->pcm_sample[ch][blk * 4 + i] = (short)SCALE4_STAGED2(res); // Q0
+    }
+}
+
+static __inline void sbc_synthesize_eight(struct sbc_decoder_state *state,
+                struct sbc_frame *frame, int ch, int blk)
+{
+    int i, j, k, idx;
+    sbc_extended_t res;
+
+    for(i = 0; i < 16; i++) {
+        /* Shifting */
+        state->offset[ch][i]--;
+        if(state->offset[ch][i] < 0) {
+            state->offset[ch][i] = 159;
+            for(j = 0; j < 9; j++) {
+                state->V[ch][j+160] = state->V[ch][j];
+            }
+        }
+    }
+
+    for(i = 0; i < 16; i++) {
+        /* Distribute the new matrix value to the shifted position */
+        SBC_FIXED_0(res);
+        for (j = 0; j < 8; j++) {
+            MULA(res, synmatrix8[i][j], frame->sb_sample[blk][ch][j]); // Q28 = Q15 * Q13
+        }
+        state->V[ch][state->offset[ch][i]] = SCALE8_STAGED1(res); // Q10
+    }
+
+
+    /* Compute the samples */
+    for(idx = 0, i = 0; i < 8; i++) {
+        k = (i + 8) & 0xf;
+        SBC_FIXED_0(res);
+        for(j = 0; j < 10; idx++) {
+            MULA(res, state->V[ch][state->offset[ch][i]+j++], sbc_proto_8_80m0[idx]);
+            MULA(res, state->V[ch][state->offset[ch][k]+j++], sbc_proto_8_80m1[idx]);
+        }
+        /* Store in output */
+        frame->pcm_sample[ch][blk * 8 + i] = (short)SCALE8_STAGED2(res); // Q0
+
+    }
+}
+
+static int sbc_synthesize_audio(struct sbc_decoder_state *state, struct sbc_frame *frame)
+{
+    int ch, blk;
+
+    switch (frame->subbands) {
+    case 4:
+        for (ch = 0; ch < frame->channels; ch++) {
+            for (blk = 0; blk < frame->blocks; blk++)
+                sbc_synthesize_four(state, frame, ch, blk);
+        }
+        return frame->blocks * 4;
+
+    case 8:
+        for (ch = 0; ch < frame->channels; ch++) {
+            for (blk = 0; blk < frame->blocks; blk++)
+                sbc_synthesize_eight(state, frame, ch, blk);
+        }
+        return frame->blocks * 8;
+
+    default:
+        return -EIO;
+    }
+}
+
+static void sbc_encoder_init(struct sbc_encoder_state *state, const struct sbc_frame *frame)
+{
+    memset(&state->X, 0, sizeof(state->X));
+    state->subbands = frame->subbands;
+}
+
+static __inline void _sbc_analyze_four(const int32_t *in, int32_t *out)
+{
+
+    sbc_extended_t res;
+    sbc_extended_t t[8];
+
+    out[0] = out[1] = out[2] = out[3] = 0;
+
+    MUL(res, _sbc_proto_4[0], (in[8] - in[32])); // Q18
+    MULA(res, _sbc_proto_4[1], (in[16] - in[24]));
+    t[0] = SCALE4_STAGE1(res); // Q8
+
+    MUL(res, _sbc_proto_4[2], in[1]);
+    MULA(res, _sbc_proto_4[3], in[9]);
+    MULA(res, _sbc_proto_4[4], in[17]);
+    MULA(res, _sbc_proto_4[5], in[25]);
+    MULA(res, _sbc_proto_4[6], in[33]);
+    t[1] = SCALE4_STAGE1(res);
+
+    MUL(res, _sbc_proto_4[7], in[2]);
+    MULA(res, _sbc_proto_4[8], in[10]);
+    MULA(res, _sbc_proto_4[9], in[18]);
+    MULA(res, _sbc_proto_4[10], in[26]);
+    MULA(res, _sbc_proto_4[11], in[34]);
+    t[2] = SCALE4_STAGE1(res);
+
+    MUL(res, _sbc_proto_4[12], in[3]);
+    MULA(res, _sbc_proto_4[13], in[11]);
+    MULA(res, _sbc_proto_4[14], in[19]);
+    MULA(res, _sbc_proto_4[15], in[27]);
+    MULA(res, _sbc_proto_4[16], in[35]);
+    t[3] = SCALE4_STAGE1(res);
+
+    MUL(res, _sbc_proto_4[17], in[4]);
+    MULA(res, _sbc_proto_4[18], (in[12] + in[28]));
+    MULA(res, _sbc_proto_4[19], in[20]);
+    MULA(res, _sbc_proto_4[17], in[36]);
+    t[4] = SCALE4_STAGE1(res);
+
+    MUL(res, _sbc_proto_4[16], in[5]);
+    MULA(res, _sbc_proto_4[15], in[13]);
+    MULA(res, _sbc_proto_4[14], in[21]);
+    MULA(res, _sbc_proto_4[13], in[29]);
+    MULA(res, _sbc_proto_4[12], in[37]);
+    t[5] = SCALE4_STAGE1(res);
+
+    MUL(res, _sbc_proto_4[11], in[6]);
+    MULA(res, _sbc_proto_4[10], in[14]);
+    MULA(res, _sbc_proto_4[9], in[22]);
+    MULA(res, _sbc_proto_4[8], in[30]);
+    MULA(res, _sbc_proto_4[7], in[38]);
+    t[6] = SCALE4_STAGE1(res);
+
+    MUL(res, _sbc_proto_4[6], in[7]);
+    MULA(res, _sbc_proto_4[5], in[15]);
+    MULA(res, _sbc_proto_4[4], in[23]);
+    MULA(res, _sbc_proto_4[3], in[31]);
+    MULA(res, _sbc_proto_4[2], in[39]);
+    t[7] = SCALE4_STAGE1(res);
+
+    MUL(res, _anamatrix4[0], t[0]);
+    MULA(res, _anamatrix4[1], t[1]);
+    MULA(res, _anamatrix4[2], t[2]);
+    MULA(res, _anamatrix4[1], t[3]);
+    MULA(res, _anamatrix4[0], t[4]);
+    MULA(res, _anamatrix4[3], t[5]);
+    MULA(res, -_anamatrix4[3], t[7]);
+    out[0] = (int)SCALE4_STAGE2(res); // Q0
+
+    MUL(res, -_anamatrix4[0], t[0]);
+    MULA(res, _anamatrix4[3], t[1]);
+    MULA(res, _anamatrix4[2], t[2]);
+    MULA(res, _anamatrix4[3], t[3]);
+    MULA(res, -_anamatrix4[0], t[4]);
+    MULA(res, -_anamatrix4[1], t[5]);
+    MULA(res, _anamatrix4[1], t[7]);
+    out[1] = (int)SCALE4_STAGE2(res);
+
+
+    MUL(res, -_anamatrix4[0], t[0]);
+    MULA(res, -_anamatrix4[3], t[1]);
+    MULA(res, _anamatrix4[2], t[2]);
+    MULA(res, -_anamatrix4[3], t[3]);
+    MULA(res, -_anamatrix4[0], t[4]);
+    MULA(res, _anamatrix4[1], t[5]);
+    MULA(res, -_anamatrix4[1], t[7]);
+    out[2] = (int)SCALE4_STAGE2(res);
+
+    MUL(res, _anamatrix4[0], t[0]);
+    MULA(res, -_anamatrix4[1], t[1]);
+    MULA(res, _anamatrix4[2], t[2]);
+    MULA(res, -_anamatrix4[1], t[3]);
+    MULA(res, _anamatrix4[0], t[4]);
+    MULA(res, -_anamatrix4[3], t[5]);
+    MULA(res, _anamatrix4[3], t[7]);
+    out[3] = (int)SCALE4_STAGE2(res);
+}
+static __inline  void sbc_analyze_four(struct sbc_encoder_state *state,
+                struct sbc_frame *frame, int ch, int blk)
+{
+    int i;
+    /* Input 4 New Audio Samples */
+    for (i = 39; i >= 4; i--)
+        state->X[ch][i] = state->X[ch][i - 4];
+    for (i = 3; i >= 0; i--)
+        state->X[ch][i] = frame->pcm_sample[ch][blk * 4 + (3 - i)];
+    _sbc_analyze_four(state->X[ch], frame->sb_sample_f[blk][ch]);
+}
+
+static __inline void _sbc_analyze_eight(const int32_t *in, int32_t *out)
+{
+    sbc_extended_t res;
+    sbc_extended_t t[8];
+
+    out[0] = out[1] = out[2] = out[3] = out[4] = out[5] = out[6] = out[7] = 0;
+
+    MUL(res,  _sbc_proto_8[0], (in[16] - in[64])); // Q18 = Q18 * Q0
+    MULA(res, _sbc_proto_8[1], (in[32] - in[48]));
+    MULA(res, _sbc_proto_8[2], in[4]);
+    MULA(res, _sbc_proto_8[3], in[20]);
+    MULA(res, _sbc_proto_8[4], in[36]);
+    MULA(res, _sbc_proto_8[5], in[52]);
+    t[0] = SCALE8_STAGE1(res); // Q10
+
+    MUL(res,   _sbc_proto_8[6], in[2]);
+    MULA(res,  _sbc_proto_8[7], in[18]);
+    MULA(res,  _sbc_proto_8[8], in[34]);
+    MULA(res,  _sbc_proto_8[9], in[50]);
+    MULA(res, _sbc_proto_8[10], in[66]);
+    t[1] = SCALE8_STAGE1(res);
+
+    MUL(res,  _sbc_proto_8[11], in[1]);
+    MULA(res, _sbc_proto_8[12], in[17]);
+    MULA(res, _sbc_proto_8[13], in[33]);
+    MULA(res, _sbc_proto_8[14], in[49]);
+    MULA(res, _sbc_proto_8[15], in[65]);
+    MULA(res, _sbc_proto_8[16], in[3]);
+    MULA(res, _sbc_proto_8[17], in[19]);
+    MULA(res, _sbc_proto_8[18], in[35]);
+    MULA(res, _sbc_proto_8[19], in[51]);
+    MULA(res, _sbc_proto_8[20], in[67]);
+    t[2] = SCALE8_STAGE1(res);
+
+    MUL(res,   _sbc_proto_8[21], in[5]);
+    MULA(res,  _sbc_proto_8[22], in[21]);
+    MULA(res,  _sbc_proto_8[23], in[37]);
+    MULA(res,  _sbc_proto_8[24], in[53]);
+    MULA(res,  _sbc_proto_8[25], in[69]);
+    MULA(res, -_sbc_proto_8[15], in[15]);
+    MULA(res, -_sbc_proto_8[14], in[31]);
+    MULA(res, -_sbc_proto_8[13], in[47]);
+    MULA(res, -_sbc_proto_8[12], in[63]);
+    MULA(res, -_sbc_proto_8[11], in[79]);
+    t[3] = SCALE8_STAGE1(res);
+
+    MUL(res,   _sbc_proto_8[26], in[6]);
+    MULA(res,  _sbc_proto_8[27], in[22]);
+    MULA(res,  _sbc_proto_8[28], in[38]);
+    MULA(res,  _sbc_proto_8[29], in[54]);
+    MULA(res,  _sbc_proto_8[30], in[70]);
+    MULA(res, -_sbc_proto_8[10], in[14]);
+    MULA(res,  -_sbc_proto_8[9], in[30]);
+    MULA(res,  -_sbc_proto_8[8], in[46]);
+    MULA(res,  -_sbc_proto_8[7], in[62]);
+    MULA(res,  -_sbc_proto_8[6], in[78]);
+    t[4] = SCALE8_STAGE1(res);
+
+    MUL(res,   _sbc_proto_8[31], in[7]);
+    MULA(res,  _sbc_proto_8[32], in[23]);
+    MULA(res,  _sbc_proto_8[33], in[39]);
+    MULA(res,  _sbc_proto_8[34], in[55]);
+    MULA(res,  _sbc_proto_8[35], in[71]);
+    MULA(res, -_sbc_proto_8[20], in[13]);
+    MULA(res, -_sbc_proto_8[19], in[29]);
+    MULA(res, -_sbc_proto_8[18], in[45]);
+    MULA(res, -_sbc_proto_8[17], in[61]);
+    MULA(res, -_sbc_proto_8[16], in[77]);
+    t[5] = SCALE8_STAGE1(res);
+
+    MUL(res,   _sbc_proto_8[36], (in[8] + in[72]));
+    MULA(res,  _sbc_proto_8[37], in[24]);
+    MULA(res,  _sbc_proto_8[38], in[40]);
+    MULA(res,  _sbc_proto_8[37], in[56]);
+    MULA(res, -_sbc_proto_8[39], in[12]);
+    MULA(res,  -_sbc_proto_8[5], in[28]);
+    MULA(res,  -_sbc_proto_8[4], in[44]);
+    MULA(res,  -_sbc_proto_8[3], in[60]);
+    MULA(res,  -_sbc_proto_8[2], in[76]);
+    t[6] = SCALE8_STAGE1(res);
+
+    MUL(res,   _sbc_proto_8[35], in[9]);
+    MULA(res,  _sbc_proto_8[34], in[25]);
+    MULA(res,  _sbc_proto_8[33], in[41]);
+    MULA(res,  _sbc_proto_8[32], in[57]);
+    MULA(res,  _sbc_proto_8[31], in[73]);
+    MULA(res, -_sbc_proto_8[25], in[11]);
+    MULA(res, -_sbc_proto_8[24], in[27]);
+    MULA(res, -_sbc_proto_8[23], in[43]);
+    MULA(res, -_sbc_proto_8[22], in[59]);
+    MULA(res, -_sbc_proto_8[21], in[75]);
+    t[7] = SCALE8_STAGE1(res);
+
+    MUL(res, _anamatrix8[0], t[0]); // = Q14 * Q10
+    MULA(res, _anamatrix8[7], t[1]);
+    MULA(res, _anamatrix8[2], t[2]);
+    MULA(res, _anamatrix8[3], t[3]);
+    MULA(res, _anamatrix8[6], t[4]);
+    MULA(res, _anamatrix8[4], t[5]);
+    MULA(res, _anamatrix8[1], t[6]);
+    MULA(res, _anamatrix8[5], t[7]);
+    out[0] = (int)SCALE8_STAGE2(res); // Q0
+
+    MUL(res, _anamatrix8[1], t[0]);
+    MULA(res, _anamatrix8[7], t[1]);
+    MULA(res, _anamatrix8[3], t[2]);
+    MULA(res, -_anamatrix8[5], t[3]);
+    MULA(res, -_anamatrix8[6], t[4]);
+    MULA(res, -_anamatrix8[2], t[5]);
+    MULA(res, -_anamatrix8[0], t[6]);
+    MULA(res, -_anamatrix8[4], t[7]);
+    out[1] = (int)SCALE8_STAGE2(res);
+
+    MUL(res, -_anamatrix8[1], t[0]);
+    MULA(res, _anamatrix8[7], t[1]);
+    MULA(res, _anamatrix8[4], t[2]);
+    MULA(res, -_anamatrix8[2], t[3]);
+    MULA(res, -_anamatrix8[6], t[4]);
+    MULA(res, _anamatrix8[5], t[5]);
+    MULA(res, _anamatrix8[0], t[6]);
+    MULA(res, _anamatrix8[3], t[7]);
+    out[2] = (int)SCALE8_STAGE2(res);
+
+    MUL(res, -_anamatrix8[0], t[0]);
+    MULA(res, _anamatrix8[7], t[1]);
+    MULA(res, _anamatrix8[5], t[2]);
+    MULA(res, -_anamatrix8[4], t[3]);
+    MULA(res, _anamatrix8[6], t[4]);
+    MULA(res, _anamatrix8[3], t[5]);
+    MULA(res, -_anamatrix8[1], t[6]);
+    MULA(res, -_anamatrix8[2], t[7]);
+    out[3] = (int)SCALE8_STAGE2(res);
+
+    MUL(res, -_anamatrix8[0], t[0]);
+    MULA(res, _anamatrix8[7], t[1]);
+    MULA(res, -_anamatrix8[5], t[2]);
+    MULA(res, _anamatrix8[4], t[3]);
+    MULA(res, _anamatrix8[6], t[4]);
+    MULA(res, -_anamatrix8[3], t[5]);
+    MULA(res, -_anamatrix8[1], t[6]);
+    MULA(res, _anamatrix8[2], t[7]);
+    out[4] = (int)SCALE8_STAGE2(res);
+
+    MUL(res, -_anamatrix8[1], t[0]);
+    MULA(res, _anamatrix8[7], t[1]);
+    MULA(res, -_anamatrix8[4], t[2]);
+    MULA(res, _anamatrix8[2], t[3]);
+    MULA(res, -_anamatrix8[6], t[4]);
+    MULA(res, -_anamatrix8[5], t[5]);
+    MULA(res, _anamatrix8[0], t[6]);
+    MULA(res, -_anamatrix8[3], t[7]);
+    out[5] = (int)SCALE8_STAGE2(res);
+
+    MUL(res, _anamatrix8[1], t[0]);
+    MULA(res, _anamatrix8[7], t[1]);
+    MULA(res, -_anamatrix8[3], t[2]);
+    MULA(res, _anamatrix8[5], t[3]);
+    MULA(res, -_anamatrix8[6], t[4]);
+    MULA(res, _anamatrix8[2], t[5]);
+    MULA(res, -_anamatrix8[0], t[6]);
+    MULA(res, _anamatrix8[4], t[7]);
+    out[6] = (int)SCALE8_STAGE2(res);
+
+    MUL(res, _anamatrix8[0], t[0]);
+    MULA(res, _anamatrix8[7], t[1]);
+    MULA(res, -_anamatrix8[2], t[2]);
+    MULA(res, -_anamatrix8[3], t[3]);
+    MULA(res, _anamatrix8[6], t[4]);
+    MULA(res, -_anamatrix8[4], t[5]);
+    MULA(res, _anamatrix8[1], t[6]);
+    MULA(res, -_anamatrix8[5], t[7]);
+    out[7] = (int)SCALE8_STAGE2(res);
+}
+
+static __inline void sbc_analyze_eight(struct sbc_encoder_state *state,
+                     struct sbc_frame *frame, int ch, int blk)
+{
+    int i;
+
+    /* Input 8 Audio Samples */
+    for (i = 79; i >= 8; i--)
+        state->X[ch][i] = state->X[ch][i - 8];
+    for (i = 7; i >= 0; i--)
+        state->X[ch][i] = frame->pcm_sample[ch][blk * 8 + (7 - i)];
+    _sbc_analyze_eight(state->X[ch], frame->sb_sample_f[blk][ch]);
+}
+
+static int sbc_analyze_audio(struct sbc_encoder_state *state, struct sbc_frame *frame)
+{
+    int ch, blk;
+
+    switch (frame->subbands)
+    {
+        case 4:
+            for (ch = 0; ch < frame->channels; ch++)
+                for (blk = 0; blk < frame->blocks; blk++) {
+                    sbc_analyze_four(state, frame, ch, blk);
+                }
+            return frame->blocks * 4;
+
+        case 8:
+            for (ch = 0; ch < frame->channels; ch++)
+                for (blk = 0; blk < frame->blocks; blk++) {
+                    sbc_analyze_eight(state, frame, ch, blk);
+                }
+            return frame->blocks * 8;
+
+        default:
+            return -EIO;
+    }
+}
+
+/*
+ * Packs the SBC frame from frame into the memory at data. At most len
+ * bytes will be used, should more memory be needed an appropriate
+ * error code will be returned. Returns the length of the packed frame
+ * on success or a negative value on error.
+ *
+ * The error codes are:
+ * -1 Not enough memory reserved
+ * -2 Unsupported sampling rate
+ * -3 Unsupported number of blocks
+ * -4 Unsupported number of subbands
+ * -5 Bitpool value out of bounds
+ * -99 not implemented
+ */
+
+static int sbc_pack_frame(uint8_t * data, struct sbc_frame *frame, size_t len)
+{
+    size_t produced;
+    /* Will copy the header parts for CRC-8 calculation here */
+    uint8_t crc_header[11] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
+    int crc_pos = 0;
+
+    uint8_t sf;     /* Sampling frequency as temporary value for table lookup */
+
+    int ch, sb, blk, bit;   /* channel, subband, block and bit counters */
+    int bits[2][8];     /* bits distribution */
+    int levels[2][8];   /* levels are derived from that */
+
+    u_int32_t scalefactor[2][8];    /* derived from frame->scale_factor */
+
+    if (len < 4)
+    {
+        return -1;
+    }
+
+    /* Clear first 4 bytes of data (that's the constant length part of the SBC header) */
+    memset(data, 0, 4);
+
+    data[0] = SBC_SYNCWORD;
+
+    if (frame->sampling_frequency == 16000)
+    {
+        data[1] |= (SBC_FS_16 & 0x03) << 6;
+        sf = SBC_FS_16;
+    }
+    else if (frame->sampling_frequency == 32000)
+    {
+        data[1] |= (SBC_FS_32 & 0x03) << 6;
+        sf = SBC_FS_32;
+    }
+    else if (frame->sampling_frequency == 44100)
+    {
+        data[1] |= (SBC_FS_44 & 0x03) << 6;
+        sf = SBC_FS_44;
+    }
+    else if (frame->sampling_frequency == 48000)
+    {
+        data[1] |= (SBC_FS_48 & 0x03) << 6;
+        sf = SBC_FS_48;
+    }
+    else
+    {
+        return -2;
+    }
+
+    switch (frame->blocks)
+    {
+    case 4:
+        data[1] |= (SBC_NB_4 & 0x03) << 4;
+        break;
+    case 8:
+        data[1] |= (SBC_NB_8 & 0x03) << 4;
+        break;
+    case 12:
+        data[1] |= (SBC_NB_12 & 0x03) << 4;
+        break;
+    case 15:
+        data[1] |= (SBC_NB_16 & 0x03) << 4;
+        break;
+    default:
+        return -3;
+        break;
+    }
+
+    data[1] |= (frame->channel_mode & 0x03) << 2;
+
+    data[1] |= (frame->allocation_method & 0x01) << 1;
+
+    switch (frame->subbands) {
+    case 4:
+        /* Nothing to do */
+        break;
+    case 8:
+        data[1] |= 0x01;
+        break;
+    default:
+        return -4;
+        break;
+    }
+
+    data[2] = frame->bitpool;
+    if (((frame->channel_mode == MONO || frame->channel_mode == DUAL_CHANNEL)
+         && frame->bitpool > 16 * frame->subbands)
+        || ((frame->channel_mode == STEREO || frame->channel_mode == JOINT_STEREO)
+        && frame->bitpool > 32 * frame->subbands)) {
+        return -5;
+    }
+
+    /* Can't fill in crc yet */
+
+    produced = 32;
+
+    // evan.
+    data[1] = 0x00;
+    data[2] = 0x00;
+
+    crc_header[0] = data[1];
+    crc_header[1] = data[2];
+    crc_pos = 16;
+
+
+    for (ch = 0; ch < frame->channels; ch++) {
+        for (sb = 0; sb < frame->subbands; sb++) {
+            frame->scale_factor[ch][sb] = 0;
+            scalefactor[ch][sb] = 2;
+            for (blk = 0; blk < frame->blocks; blk++) {
+                while (scalefactor[ch][sb] < (u_int32_t)fabs(frame->sb_sample_f[blk][ch][sb])) {
+                    frame->scale_factor[ch][sb]++;
+                    scalefactor[ch][sb] *= 2;
+                }
+            }
+        }
+    }
+
+    if (frame->channel_mode == JOINT_STEREO) {
+        int32_t sb_sample_j[16][2][7]; /* like frame->sb_sample but joint stereo */
+        u_int32_t scalefactor_j[2][7], scale_factor_j[2][7]; /* scalefactor and scale_factor in joint case */
+
+        /* Calculate joint stereo signal */
+        for (sb = 0; sb < frame->subbands - 1; sb++) {
+            for (blk = 0; blk < frame->blocks; blk++) {
+                sb_sample_j[blk][0][sb] = (frame->sb_sample_f[blk][0][sb] +  frame->sb_sample_f[blk][1][sb]) >> 1;
+                sb_sample_j[blk][1][sb] = (frame->sb_sample_f[blk][0][sb] -  frame->sb_sample_f[blk][1][sb]) >> 1;
+            }
+        }
+
+        /* calculate scale_factor_j and scalefactor_j for joint case */
+        for (ch = 0; ch < 2; ch++) {
+            for (sb = 0; sb < frame->subbands - 1; sb++) {
+                scale_factor_j[ch][sb] = 0;
+                scalefactor_j[ch][sb] = 2;
+                for (blk = 0; blk < frame->blocks; blk++) {
+                    while (scalefactor_j[ch][sb] < (u_int32_t)fabs(sb_sample_j[blk][ch][sb])) {
+                        scale_factor_j[ch][sb]++;
+                        scalefactor_j[ch][sb] *= 2;
+                    }
+                }
+            }
+        }
+
+        /* decide which subbands to join */
+        frame->join = 0;
+        for (sb = 0; sb < frame->subbands - 1; sb++) {
+            if ((scalefactor[0][sb] + scalefactor[1][sb]) >
+                    (scalefactor_j[0][sb] + scalefactor_j[1][sb]) ) {
+                /* use joint stereo for this subband */
+                frame->join |= 1 << sb;
+                frame->scale_factor[0][sb] = scale_factor_j[0][sb];
+                frame->scale_factor[1][sb] = scale_factor_j[1][sb];
+                scalefactor[0][sb] = scalefactor_j[0][sb];
+                scalefactor[1][sb] = scalefactor_j[1][sb];
+                for (blk = 0; blk < frame->blocks; blk++) {
+                    frame->sb_sample_f[blk][0][sb] = sb_sample_j[blk][0][sb];
+                    frame->sb_sample_f[blk][1][sb] = sb_sample_j[blk][1][sb];
+                }
+            }
+        }
+
+        if (len * 8 < produced + frame->subbands)
+            return -1;
+
+        data[4] = 0;
+        for (sb = 0; sb < frame->subbands - 1; sb++) {
+            data[4] |= ((frame->join >> sb) & 0x01) << (7 - sb);
+        }
+        if (frame->subbands == 4) {
+            crc_header[crc_pos / 8] = data[4] & 0xf0;
+        } else {
+            crc_header[crc_pos / 8] = data[4];
+        }
+
+        produced += frame->subbands;
+        crc_pos += frame->subbands;
+    }
+
+    if (len * 8 < produced + (4 * frame->subbands * frame->channels))
+        return -1;
+
+    for (ch = 0; ch < frame->channels; ch++) {
+        for (sb = 0; sb < frame->subbands; sb++) {
+            if (produced % 8 == 0)
+                data[produced / 8] = 0;
+            data[produced / 8] |= ((frame->scale_factor[ch][sb] & 0x0F) << (4 - (produced % 8)));
+            crc_header[crc_pos / 8] |= ((frame->scale_factor[ch][sb] & 0x0F) << (4 - (crc_pos % 8)));
+
+            produced += 4;
+            crc_pos += 4;
+        }
+    }
+
+    data[3] = sbc_crc8(crc_header, crc_pos);
+
+
+
+    sbc_calculate_bits(frame, bits, sf);
+
+    for (ch = 0; ch < frame->channels; ch++) {
+        for (sb = 0; sb < frame->subbands; sb++) {
+            levels[ch][sb] = (1 << bits[ch][sb]) - 1;
+        }
+    }
+
+    for (blk = 0; blk < frame->blocks; blk++) {
+        for (ch = 0; ch < frame->channels; ch++) {
+            for (sb = 0; sb < frame->subbands; sb++) {
+                if (levels[ch][sb] > 0) {
+                    frame->audio_sample[blk][ch][sb] =
+                        (uint16_t) ((((frame->sb_sample_f[blk][ch][sb]*levels[ch][sb]) >> (frame->scale_factor[ch][sb] + 1)) +
+                        levels[ch][sb]) >> 1);
+                } else {
+                    frame->audio_sample[blk][ch][sb] = 0;
+                }
+            }
+        }
+    }
+
+    for (blk = 0; blk < frame->blocks; blk++) {
+        for (ch = 0; ch < frame->channels; ch++) {
+            for (sb = 0; sb < frame->subbands; sb++) {
+                if (bits[ch][sb] != 0) {
+                    for (bit = 0; bit < bits[ch][sb]; bit++) {
+                        int b;  /* A bit */
+                        if (produced > len * 8) {
+                            return -1;
+                        }
+                        if (produced % 8 == 0) {
+                            data[produced / 8] = 0;
+                        }
+                        b = ((frame->audio_sample[blk][ch][sb]) >> (bits[ch][sb] - bit -
+                                                1)) & 0x01;
+                        data[produced / 8] |= b << (7 - (produced % 8));
+                        produced++;
+                    }
+                }
+            }
+        }
+    }
+
+    if (produced % 8 != 0) {
+        produced += 8 - (produced % 8);
+    }
+
+    return (int)(produced / 8);
+}
+
+struct sbc_priv {
+    int init;
+    struct sbc_frame frame;
+    struct sbc_decoder_state dec_state;
+    struct sbc_encoder_state enc_state;
+};
+
+int sbc_init(sbc_t *sbc, unsigned long flags)
+{
+    if (!sbc)
+        return -EIO;
+
+    flags = flags;
+
+    memset(sbc, 0, sizeof(sbc_t));
+
+    sbc->priv = malloc(sizeof(struct sbc_priv) + SBC_ALIGN_MASK);
+    if (!sbc->priv)
+        return -ENOMEM;
+    memset(sbc->priv, 0, sizeof(struct sbc_priv));
+
+    sbc->rate = 16000;
+    sbc->channels = 1;
+    sbc->joint = 0;
+    sbc->subbands = 8;
+    sbc->blocks = 15;
+    sbc->bitpool = 26;
+
+    return 0;
+}
+
+int sbc_reinit(sbc_t *sbc, unsigned long flags)
+{
+    struct sbc_priv *priv;
+
+    if (!sbc || !sbc->priv)
+        return -EIO;
+
+    flags = flags;
+    priv = sbc->priv;
+
+    if (priv->init == 1)
+        memset(sbc->priv, 0, sizeof(struct sbc_priv));
+
+    return 0;
+}
+
+
+int sbc_decode(sbc_t *sbc, void *input, int input_len, void *output,
+               int output_len, int *written)
+{
+    struct sbc_priv *priv;
+    char *ptr;
+    int i, ch, framelen, samples;
+
+    if (!sbc)
+    {
+        //DbgPrint("Exit.when sbc is NULL.\n");
+        return -EIO;
+    }
+
+    if (!sbc && !input)
+    {
+        //DbgPrint("!sbc && !input\n");
+        return -EIO;
+    }
+
+    priv = sbc->priv;
+    if(!priv)
+        return -99;
+
+    framelen = sbc_unpack_frame(input, &priv->frame, input_len);
+
+    if (!priv->init)
+    {
+        sbc_decoder_init(&priv->dec_state, &priv->frame);
+        priv->init = 1;
+
+        sbc->rate = priv->frame.sampling_frequency;
+        sbc->channels = priv->frame.channels;
+        sbc->subbands = priv->frame.subbands;
+        sbc->blocks = priv->frame.blocks;
+        sbc->bitpool = priv->frame.bitpool;
+    }
+
+    if (!output)
+    {
+        //DbgPrint("!output\n");
+        return framelen;
+    }
+
+    if (written)
+        *written = 0;
+
+    if (framelen <= 0)
+    {
+        //DbgPrint("Exit when framelen <= 0\n");
+        return framelen;
+    }
+
+    samples = sbc_synthesize_audio(&priv->dec_state, &priv->frame);
+
+    ptr = output;
+    if (output_len < samples * priv->frame.channels * 2)
+        samples = output_len / (priv->frame.channels * 2);
+
+/*
+    if (!sbc->data)
+    {
+        sbc->size = samples * priv->frame.channels * 2;
+        sbc->data = malloc(sbc->size);
+    }
+
+
+    if (sbc->size < samples * priv->frame.channels * 2)
+    {
+        sbc->size = samples * priv->frame.channels * 2;
+        sbc->data = realloc(sbc->data, sbc->size);
+    }
+
+    if (!sbc->data)
+    {
+        sbc->size = 0;
+        return -ENOMEM;
+    }
+*/
+
+    for (i = 0; i < samples; i++)
+    {
+        for (ch = 0; ch < priv->frame.channels; ch++)
+        {
+            int16_t s;
+            s = priv->frame.pcm_sample[ch][i];
+        /*
+            *ptr++ = (s & 0xff00) >> 8;
+            *ptr++ = (s & 0x00ff);
+        */
+            *ptr++ = (s & 0x00ff);
+            *ptr++ = (s & 0xff00) >> 8;
+        }
+    }
+
+    if (written)
+        *written = samples * priv->frame.channels * 2;
+
+    return framelen;
+}
+
+int sbc_encode(sbc_t *sbc, void *input, int input_len, void *output,
+               int output_len, int *written)
+{
+    struct sbc_priv *priv;
+    char *ptr;
+    int i, ch, framelen, samples;
+
+    if (!sbc)
+    {
+        //DbgPrint("Exit, when !sbc.\n");
+        return -EIO;
+    }
+
+
+    if (!sbc && !input)
+    {
+        //DbgPrint("Exit, when !sbc && !input.\n");
+        return -EIO;
+    }
+
+    /// make sure sbc has been initialized
+    priv = sbc->priv;
+    if(priv == NULL){
+        //DbgPrint("priv == NULL\n");
+        return -EIO;
+    }
+
+    if (written)
+        *written = 0;
+
+    if (!priv->init)
+    {
+        //DbgPrint("Initial priv->frame ,when priv->init is null\n");
+        priv->frame.sampling_frequency = sbc->rate;
+        priv->frame.channels = sbc->channels;
+        priv->frame.channel_mode = MONO;
+        priv->frame.allocation_method = LOUDNESS;
+        priv->frame.subbands = sbc->subbands;
+        priv->frame.blocks = sbc->blocks;
+        priv->frame.bitpool = sbc->bitpool;
+
+        sbc_encoder_init(&priv->enc_state, &priv->frame);
+        priv->init = 1;
+    }
+
+    /* input must be large enough to encode a complete frame */
+    if (input_len < 240)
+    {
+        //DbgPrint("Exit, when input_len < priv->frame.codesize..\n");
+        return 0;
+    }
+
+    /* output must be large enough to receive the encoded frame */
+    if (!output || output_len < 57)
+    {
+        //DbgPrint("Exit, when !output || output_len < priv->frame.length\n");
+        return -ENOSPC;
+    }
+
+    ptr = input;
+    for (i = 0; i < priv->frame.subbands * priv->frame.blocks; i++)
+    {
+        for (ch = 0; ch < sbc->channels; ch++)
+        {
+        //  int16_t s = (ptr[0] & 0xff) << 8 | (ptr[1] & 0xff);
+            int16_t s = (ptr[1] & 0xff) << 8 | (ptr[0] & 0xff);
+            ptr += 2;
+            priv->frame.pcm_sample[ch][i] = s;
+        }
+    }
+
+    samples = 0;
+    samples = sbc_analyze_audio(&priv->enc_state, &priv->frame);
+
+    if (!sbc->data)
+    {
+        sbc->size = 1024;
+//      sbc->data = malloc(sbc->size);
+        sbc->data = malloc(sbc->size);
+        if (!sbc->data)
+        {
+            //DbgPrint("sbc->data allocate failed!!!\n");
+            return -ENOMEM;
+        }
+        memset(sbc->data, 0, sbc->size);
+    }
+
+    if (!sbc->data)
+    {
+        sbc->size = 0;
+        //DbgPrint("sbc->data is null, so exit!!!\n");
+        return -ENOMEM;
+    }
+
+    framelen = sbc_pack_frame(output, &priv->frame, output_len);
+    if (written)
+    {
+        *written = (int)framelen;//in 64 bit os, it should be okay.
+    }
+
+    sbc->len = framelen;
+    sbc->duration = (1000000 * priv->frame.subbands * priv->frame.blocks) / sbc->rate;
+
+    return samples * sbc->channels * 2;
+}
+
+
+void sbc_finish(sbc_t *sbc)
+{
+    if (!sbc)
+        return;
+
+    if (sbc->data)
+        free(sbc->data);
+
+
+    if (sbc->priv)
+    {
+        free(sbc->priv);
+    }
+    memset(sbc, 0, sizeof(sbc_t));
+}
diff --git a/rtkbt/addon/vr_bee2_hidraw_daemon/hidraw/msbc/msbc.h b/rtkbt/addon/vr_bee2_hidraw_daemon/hidraw/msbc/msbc.h
new file mode 100755
index 0000000..bd46bf6
--- /dev/null
+++ b/rtkbt/addon/vr_bee2_hidraw_daemon/hidraw/msbc/msbc.h
@@ -0,0 +1,79 @@
+/*
+ *
+ *  Bluetooth low-complexity, subband codec (SBC) library
+ *
+ *  Copyright (C) 2004-2006  Marcel Holtmann <marcel@holtmann.org>
+ *  Copyright (C) 2004-2005  Henryk Ploetz <henryk@ploetzli.ch>
+ *  Copyright (C) 2005-2006  Brad Midgley <bmidgley@xmission.com>
+ *
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Lesser General Public
+ *  License as published by the Free Software Foundation; either
+ *  version 2.1 of the License, or (at your option) any later version.
+ *
+ *  This library is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with this library; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+#ifndef __SBC_H
+#define __SBC_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+struct sbc_struct {
+    unsigned long flags;
+    unsigned short rate;
+    unsigned char channels;
+    unsigned char joint;
+    unsigned char blocks;
+    unsigned char subbands;
+    unsigned char bitpool;
+
+    void *data;
+    int size;
+    int len;
+
+    unsigned long duration;
+
+    void *priv;
+};
+
+typedef struct sbc_struct sbc_t;
+
+int sbc_init(sbc_t *sbc, unsigned long flags);
+
+int sbc_reinit(sbc_t *sbc, unsigned long flags);
+
+
+int sbc_encode(sbc_t *sbc,
+               void *input,
+               int input_len,
+               void *output,
+               int output_len,
+               int *written);
+
+int sbc_decode(sbc_t *sbc,
+               void *input,
+               int input_len,
+               void *output,
+               int output_len,
+               int *written);
+
+void sbc_finish(sbc_t *sbc);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __SBC_H */
diff --git a/rtkbt/addon/vr_bee2_hidraw_daemon/hidraw/msbc/msbc_math.h b/rtkbt/addon/vr_bee2_hidraw_daemon/hidraw/msbc/msbc_math.h
new file mode 100755
index 0000000..3ccadd8
--- /dev/null
+++ b/rtkbt/addon/vr_bee2_hidraw_daemon/hidraw/msbc/msbc_math.h
@@ -0,0 +1,70 @@
+/*
+ *
+ *  Bluetooth low-complexity, subband codec (SBC) library
+ *
+ *  Copyright (C) 2004-2006  Marcel Holtmann <marcel@holtmann.org>
+ *  Copyright (C) 2004-2005  Henryk Ploetz <henryk@ploetzli.ch>
+ *  Copyright (C) 2005-2006  Brad Midgley <bmidgley@xmission.com>
+ *
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Lesser General Public
+ *  License as published by the Free Software Foundation; either
+ *  version 2.1 of the License, or (at your option) any later version.
+ *
+ *  This library is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with this library; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+#define fabs(x) ((x) < 0 ? -(x) : (x))
+/* C does not provide an explicit arithmetic shift right but this will
+   always be correct and every compiler *should* generate optimal code */
+#define ASR(val, bits) ((-2 >> 1 == -1) ? \
+         ((int32_t)(val)) >> (bits) : ((int32_t) (val)) / (1 << (bits)))
+#define ASR_64(val, bits) ((-2 >> 1 == -1) ? \
+         ((long long)(val)) >> (bits) : ((long long) (val)) / (1 << (bits)))
+
+#define SCALE_PROTO4_TBL    15
+#define SCALE_ANA4_TBL      16
+#define SCALE_PROTO8_TBL    15
+#define SCALE_ANA8_TBL      16
+#define SCALE_SPROTO4_TBL   16
+#define SCALE_SPROTO8_TBL   16
+#define SCALE_NPROTO4_TBL   10
+#define SCALE_NPROTO8_TBL   12
+#define SCALE_SAMPLES       14
+#define SCALE4_STAGE1_BITS  10
+#define SCALE4_STAGE2_BITS  21
+#define SCALE4_STAGED1_BITS 18
+#define SCALE4_STAGED2_BITS 23
+#define SCALE8_STAGE1_BITS  8
+#define SCALE8_STAGE2_BITS  24
+#define SCALE8_STAGED1_BITS 18
+#define SCALE8_STAGED2_BITS 23
+
+typedef int     int32_t;
+typedef int32_t sbc_fixed_t;
+typedef long long sbc_extended_t;
+
+#define SCALE4_STAGE1(src)  ASR_64(src, SCALE4_STAGE1_BITS)
+#define SCALE4_STAGE2(src)  ASR_64(src, SCALE4_STAGE2_BITS)
+#define SCALE4_STAGED1(src) ASR_64(src, SCALE4_STAGED1_BITS)
+#define SCALE4_STAGED2(src) ASR_64(src, SCALE4_STAGED2_BITS)
+#define SCALE8_STAGE1(src)  ASR_64(src, SCALE8_STAGE1_BITS)
+#define SCALE8_STAGE2(src)  ASR_64(src, SCALE8_STAGE2_BITS)
+#define SCALE8_STAGED1(src) ASR_64(src, SCALE8_STAGED1_BITS)
+#define SCALE8_STAGED2(src) ASR_64(src, SCALE8_STAGED2_BITS)
+
+#define SBC_FIXED_0(val) { val = 0; }
+#define ADD(dst, src)    { dst += src; }
+#define SUB(dst, src)    { dst -= src; }
+#define MUL(dst, a, b)   { dst = (sbc_extended_t) (a) * (b); }
+#define MULA(dst, a, b)  { dst += (sbc_extended_t) (a) * (b); }
+#define DIV2(dst, src)   { dst = ASR(src, 1); }
diff --git a/rtkbt/addon/vr_bee2_hidraw_daemon/hidraw/msbc/msbc_tables.h b/rtkbt/addon/vr_bee2_hidraw_daemon/hidraw/msbc/msbc_tables.h
new file mode 100755
index 0000000..98e8e43
--- /dev/null
+++ b/rtkbt/addon/vr_bee2_hidraw_daemon/hidraw/msbc/msbc_tables.h
@@ -0,0 +1,169 @@
+/*
+ *
+ *  Bluetooth low-complexity, subband codec (SBC) library
+ *
+ *  Copyright (C) 2004-2006  Marcel Holtmann <marcel@holtmann.org>
+ *  Copyright (C) 2004-2005  Henryk Ploetz <henryk@ploetzli.ch>
+ *  Copyright (C) 2005-2006  Brad Midgley <bmidgley@xmission.com>
+ *
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Lesser General Public
+ *  License as published by the Free Software Foundation; either
+ *  version 2.1 of the License, or (at your option) any later version.
+ *
+ *  This library is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with this library; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+#include "msbc_math.h"
+
+/* A2DP specification: Appendix B, page 69 */
+static const int sbc_offset4[4][4] = {
+    { -1, 0, 0, 0 },
+    { -2, 0, 0, 1 },
+    { -2, 0, 0, 1 },
+    { -2, 0, 0, 1 }
+};
+
+/* A2DP specification: Appendix B, page 69 */
+static const int sbc_offset8[4][8] = {
+    { -2, 0, 0, 0, 0, 0, 0, 1 },
+    { -3, 0, 0, 0, 0, 0, 1, 2 },
+    { -4, 0, 0, 0, 0, 0, 1, 2 },
+    { -4, 0, 0, 0, 0, 0, 1, 2 }
+};
+
+#define SP4(val) ASR(val, SCALE_PROTO4_TBL)
+#define SA4(val) ASR(val, SCALE_ANA4_TBL)
+#define SP8(val) ASR(val, SCALE_PROTO8_TBL)
+#define SA8(val) ASR(val, SCALE_ANA8_TBL)
+#define SS4(val) ASR(val, SCALE_SPROTO4_TBL)
+#define SS8(val) ASR(val, SCALE_SPROTO8_TBL)
+#define SN4(val) ASR(val, SCALE_NPROTO4_TBL)
+#define SN8(val) ASR(val, SCALE_NPROTO8_TBL)
+
+static const int32_t _sbc_proto_4[20] = {
+    SP4(0x02cb3e8c), SP4(0x22b63dc0), SP4(0x002329cc), SP4(0x053b7548),
+    SP4(0x31eab940), SP4(0xec1f5e60), SP4(0xff3773a8), SP4(0x0061c5a7),
+    SP4(0x07646680), SP4(0x3f239480), SP4(0xf89f23a8), SP4(0x007a4737),
+    SP4(0x00b32807), SP4(0x083ddc80), SP4(0x4825e480), SP4(0x0191e578),
+    SP4(0x00ff11ca), SP4(0x00fb7991), SP4(0x069fdc58), SP4(0x4b584000)
+};
+
+static const int32_t _anamatrix4[4] = {
+    SA4(0x2d413cc0), SA4(0x3b20d780), SA4(0x40000000), SA4(0x187de2a0)
+};
+
+static const int32_t _sbc_proto_8[40] = {
+    SP8(0x02e5cd20), SP8(0x22d0c200), SP8(0x006bfe27), SP8(0x07808930),
+    SP8(0x3f1c8800), SP8(0xf8810d70), SP8(0x002cfdc6), SP8(0x055acf28),
+    SP8(0x31f566c0), SP8(0xebfe57e0), SP8(0xff27c437), SP8(0x001485cc),
+    SP8(0x041c6e58), SP8(0x2a7cfa80), SP8(0xe4c4a240), SP8(0xfe359e4c),
+    SP8(0x0048b1f8), SP8(0x0686ce30), SP8(0x38eec5c0), SP8(0xf2a1b9f0),
+    SP8(0xffe8904a), SP8(0x0095698a), SP8(0x0824a480), SP8(0x443b3c00),
+    SP8(0xfd7badc8), SP8(0x00d3e2d9), SP8(0x00c183d2), SP8(0x084e1950),
+    SP8(0x4810d800), SP8(0x017f43fe), SP8(0x01056dd8), SP8(0x00e9cb9f),
+    SP8(0x07d7d090), SP8(0x4a708980), SP8(0x0488fae8), SP8(0x0113bd20),
+    SP8(0x0107b1a8), SP8(0x069fb3c0), SP8(0x4b3db200), SP8(0x00763f48)
+};
+
+static const int32_t sbc_proto_4_40m0[] = {
+    SS4(0x00000000), SS4(0xffa6982f), SS4(0xfba93848), SS4(0x0456c7b8),
+    SS4(0x005967d1), SS4(0xfffb9ac7), SS4(0xff589157), SS4(0xf9c2a8d8),
+    SS4(0x027c1434), SS4(0x0019118b), SS4(0xfff3c74c), SS4(0xff137330),
+    SS4(0xf81b8d70), SS4(0x00ec1b8b), SS4(0xfff0b71a), SS4(0xffe99b00),
+    SS4(0xfef84470), SS4(0xf6fb4370), SS4(0xffcdc351), SS4(0xffe01dc7)
+};
+
+static const int32_t sbc_proto_4_40m1[] = {
+    SS4(0xffe090ce), SS4(0xff2c0475), SS4(0xf694f800), SS4(0xff2c0475),
+    SS4(0xffe090ce), SS4(0xffe01dc7), SS4(0xffcdc351), SS4(0xf6fb4370),
+    SS4(0xfef84470), SS4(0xffe99b00), SS4(0xfff0b71a), SS4(0x00ec1b8b),
+    SS4(0xf81b8d70), SS4(0xff137330), SS4(0xfff3c74c), SS4(0x0019118b),
+    SS4(0x027c1434), SS4(0xf9c2a8d8), SS4(0xff589157), SS4(0xfffb9ac7)
+};
+
+static const int32_t sbc_proto_8_80m0[] = {
+    SS8(0x00000000), SS8(0xfe8d1970), SS8(0xee979f00), SS8(0x11686100),
+    SS8(0x0172e690), SS8(0xfff5bd1a), SS8(0xfdf1c8d4), SS8(0xeac182c0),
+    SS8(0x0d9daee0), SS8(0x00e530da), SS8(0xffe9811d), SS8(0xfd52986c),
+    SS8(0xe7054ca0), SS8(0x0a00d410), SS8(0x006c1de4), SS8(0xffdba705),
+    SS8(0xfcbc98e8), SS8(0xe3889d20), SS8(0x06af2308), SS8(0x000bb7db),
+    SS8(0xffca00ed), SS8(0xfc3fbb68), SS8(0xe071bc00), SS8(0x03bf7948),
+    SS8(0xffc4e05c), SS8(0xffb54b3b), SS8(0xfbedadc0), SS8(0xdde26200),
+    SS8(0x0142291c), SS8(0xff960e94), SS8(0xff9f3e17), SS8(0xfbd8f358),
+    SS8(0xdbf79400), SS8(0xff405e01), SS8(0xff7d4914), SS8(0xff8b1a31),
+    SS8(0xfc1417b8), SS8(0xdac7bb40), SS8(0xfdbb828c), SS8(0xff762170)
+};
+
+static const int32_t sbc_proto_8_80m1[] = {
+    SS8(0xff7c272c), SS8(0xfcb02620), SS8(0xda612700), SS8(0xfcb02620),
+    SS8(0xff7c272c), SS8(0xff762170), SS8(0xfdbb828c), SS8(0xdac7bb40),
+    SS8(0xfc1417b8), SS8(0xff8b1a31), SS8(0xff7d4914), SS8(0xff405e01),
+    SS8(0xdbf79400), SS8(0xfbd8f358), SS8(0xff9f3e17), SS8(0xff960e94),
+    SS8(0x0142291c), SS8(0xdde26200), SS8(0xfbedadc0), SS8(0xffb54b3b),
+    SS8(0xffc4e05c), SS8(0x03bf7948), SS8(0xe071bc00), SS8(0xfc3fbb68),
+    SS8(0xffca00ed), SS8(0x000bb7db), SS8(0x06af2308), SS8(0xe3889d20),
+    SS8(0xfcbc98e8), SS8(0xffdba705), SS8(0x006c1de4), SS8(0x0a00d410),
+    SS8(0xe7054ca0), SS8(0xfd52986c), SS8(0xffe9811d), SS8(0x00e530da),
+    SS8(0x0d9daee0), SS8(0xeac182c0), SS8(0xfdf1c8d4), SS8(0xfff5bd1a)
+};
+
+static const int32_t _anamatrix8[8] = {
+    SA8(0x3b20d780), SA8(0x187de2a0), SA8(0x3ec52f80), SA8(0x3536cc40),
+    SA8(0x238e7680), SA8(0x0c7c5c20), SA8(0x2d413cc0), SA8(0x40000000)
+};
+
+static const int32_t synmatrix4[8][4] = {
+    { SN4(0x05a82798), SN4(0xfa57d868), SN4(0xfa57d868), SN4(0x05a82798) },
+    { SN4(0x030fbc54), SN4(0xf89be510), SN4(0x07641af0), SN4(0xfcf043ac) },
+    { SN4(0x00000000), SN4(0x00000000), SN4(0x00000000), SN4(0x00000000) },
+    { SN4(0xfcf043ac), SN4(0x07641af0), SN4(0xf89be510), SN4(0x030fbc54) },
+    { SN4(0xfa57d868), SN4(0x05a82798), SN4(0x05a82798), SN4(0xfa57d868) },
+    { SN4(0xf89be510), SN4(0xfcf043ac), SN4(0x030fbc54), SN4(0x07641af0) },
+    { SN4(0xf8000000), SN4(0xf8000000), SN4(0xf8000000), SN4(0xf8000000) },
+    { SN4(0xf89be510), SN4(0xfcf043ac), SN4(0x030fbc54), SN4(0x07641af0) }
+};
+
+static const int32_t synmatrix8[16][8] = {
+    { SN8(0x05a82798), SN8(0xfa57d868), SN8(0xfa57d868), SN8(0x05a82798),
+      SN8(0x05a82798), SN8(0xfa57d868), SN8(0xfa57d868), SN8(0x05a82798) },
+    { SN8(0x0471ced0), SN8(0xf8275a10), SN8(0x018f8b84), SN8(0x06a6d988),
+      SN8(0xf9592678), SN8(0xfe70747c), SN8(0x07d8a5f0), SN8(0xfb8e3130) },
+    { SN8(0x030fbc54), SN8(0xf89be510), SN8(0x07641af0), SN8(0xfcf043ac),
+      SN8(0xfcf043ac), SN8(0x07641af0), SN8(0xf89be510), SN8(0x030fbc54) },
+    { SN8(0x018f8b84), SN8(0xfb8e3130), SN8(0x06a6d988), SN8(0xf8275a10),
+      SN8(0x07d8a5f0), SN8(0xf9592678), SN8(0x0471ced0), SN8(0xfe70747c) },
+    { SN8(0x00000000), SN8(0x00000000), SN8(0x00000000), SN8(0x00000000),
+      SN8(0x00000000), SN8(0x00000000), SN8(0x00000000), SN8(0x00000000) },
+    { SN8(0xfe70747c), SN8(0x0471ced0), SN8(0xf9592678), SN8(0x07d8a5f0),
+      SN8(0xf8275a10), SN8(0x06a6d988), SN8(0xfb8e3130), SN8(0x018f8b84) },
+    { SN8(0xfcf043ac), SN8(0x07641af0), SN8(0xf89be510), SN8(0x030fbc54),
+      SN8(0x030fbc54), SN8(0xf89be510), SN8(0x07641af0), SN8(0xfcf043ac) },
+    { SN8(0xfb8e3130), SN8(0x07d8a5f0), SN8(0xfe70747c), SN8(0xf9592678),
+      SN8(0x06a6d988), SN8(0x018f8b84), SN8(0xf8275a10), SN8(0x0471ced0) },
+    { SN8(0xfa57d868), SN8(0x05a82798), SN8(0x05a82798), SN8(0xfa57d868),
+      SN8(0xfa57d868), SN8(0x05a82798), SN8(0x05a82798), SN8(0xfa57d868) },
+    { SN8(0xf9592678), SN8(0x018f8b84), SN8(0x07d8a5f0), SN8(0x0471ced0),
+      SN8(0xfb8e3130), SN8(0xf8275a10), SN8(0xfe70747c), SN8(0x06a6d988) },
+    { SN8(0xf89be510), SN8(0xfcf043ac), SN8(0x030fbc54), SN8(0x07641af0),
+      SN8(0x07641af0), SN8(0x030fbc54), SN8(0xfcf043ac), SN8(0xf89be510) },
+    { SN8(0xf8275a10), SN8(0xf9592678), SN8(0xfb8e3130), SN8(0xfe70747c),
+      SN8(0x018f8b84), SN8(0x0471ced0), SN8(0x06a6d988), SN8(0x07d8a5f0) },
+    { SN8(0xf8000000), SN8(0xf8000000), SN8(0xf8000000), SN8(0xf8000000),
+      SN8(0xf8000000), SN8(0xf8000000), SN8(0xf8000000), SN8(0xf8000000) },
+    { SN8(0xf8275a10), SN8(0xf9592678), SN8(0xfb8e3130), SN8(0xfe70747c),
+      SN8(0x018f8b84), SN8(0x0471ced0), SN8(0x06a6d988), SN8(0x07d8a5f0) },
+    { SN8(0xf89be510), SN8(0xfcf043ac), SN8(0x030fbc54), SN8(0x07641af0),
+      SN8(0x07641af0), SN8(0x030fbc54), SN8(0xfcf043ac), SN8(0xf89be510) },
+    { SN8(0xf9592678), SN8(0x018f8b84), SN8(0x07d8a5f0), SN8(0x0471ced0),
+      SN8(0xfb8e3130), SN8(0xf8275a10), SN8(0xfe70747c), SN8(0x06a6d988) }
+};
diff --git a/rtkbt/addon/vr_bee2_hidraw_daemon/hidraw/sbc/sbc.h b/rtkbt/addon/vr_bee2_hidraw_daemon/hidraw/sbc/sbc.h
new file mode 100755
index 0000000..af8021c
--- /dev/null
+++ b/rtkbt/addon/vr_bee2_hidraw_daemon/hidraw/sbc/sbc.h
@@ -0,0 +1,85 @@
+#ifndef _SBC_H_
+#define _SBC_H_
+
+/* defines */
+#define SBC_SUCCESS            0
+#define SBC_NOT_ENOUGH_DATA   -1
+#define SBC_BUFFER_TOO_SMALL  -2
+#define SBC_NO_SYNCBYTE       -3
+#define SBC_CHECKSUM_ERROR    -4
+
+#define SBC_SYNCBYTE           0x9c
+#define SBC_MAX_SUBBANDS       8
+#define SBC_MAX_CHANNELS       2
+#define SBC_TERMINATOR        -1
+
+/* structs, typedefs */
+#define SBC_FREQU16000   0x0
+#define SBC_FREQU32000   0x1
+#define SBC_FREQU44100   0x2
+#define SBC_FREQU48000   0x3
+typedef unsigned short TSBCSamplingFrequency;
+
+#define SBC_BLOCKS4    0x0
+#define SBC_BLOCKS8    0x1
+#define SBC_BLOCKS12   0x2
+#define SBC_BLOCKS16   0x3
+typedef unsigned short TSBCBlockNumber;
+
+#define SBC_MODE_MONO     0x0
+#define SBC_MODE_DUAL     0x1
+#define SBC_MODE_STEREO   0x2
+#define SBC_MODE_JOINT    0x3
+typedef unsigned short TSBCChannelMode;
+
+#define SBC_ALLOCLOUDNESS  0x0
+#define SBC_ALLOCSNR       0x1
+typedef unsigned short TSBCAllocMethod;
+
+#define SBC_SUBBANDS4  0x0
+#define SBC_SUBBANDS8  0x1
+typedef unsigned short TSBCSubbandNumber;
+
+typedef struct tagSBCParams
+{
+	TSBCSamplingFrequency samplingFrequency;
+	TSBCBlockNumber blockNumber;
+	TSBCChannelMode channelMode;
+	TSBCAllocMethod allocMethod;
+	TSBCSubbandNumber subbandNumber;
+	unsigned char bitpool;
+} TSBCParams;
+
+typedef struct taglist TList;
+
+struct taglist
+ {
+  TList  *pNext;          /* next/first element    */
+  TList  *pPrevious;      /* previous/last element */
+ };
+
+typedef TList * PList;
+#define LIST_IS_EMPTY(pList)    ((pList)->pNext == pList)
+#define LIST_QUEUE_OUT(pList)   (pList)->pNext; listRemove((pList)->pNext)
+ 
+void listInit  ( PList pList );
+void listInsert( PList pElement, PList pDestinationList );
+void listRemove( PList pElement );
+void listMove  ( PList pElement, PList pDestinationList );
+int  listElementCount( PList pList );
+
+ 
+/* public sbc interface */
+void sbcInitEncoder(void); /* initializes internal buffers */
+int sbcEncode(unsigned char* inputBuffer, int inputSize, TSBCParams* params, unsigned char* outputBuffer, int* pOutputSize);
+/* returns number of processed input bytes; *pOutputSize contains number of output bytes */
+/* or required output buffer size */
+
+void sbcInitDecoder(void); /* initializes internal buffers */
+int sbcDecode(unsigned char* pInputBuffer, int inputSize, unsigned char* pOutputBuffer, int* pOutputSize);
+/* returns number of processed input bytes; *pOutputSize contains number of output bytes */
+/* or required output buffer size */
+int sbcGetParams(unsigned char* pInputBuffer, int inputSize, TSBCParams* pParams);
+/* fill TSBCParams with data or first SBC frame in pInputBuffer */
+
+#endif
diff --git a/rtkbt/addon/vr_bee2_hidraw_daemon/hidraw/sbc/sbcdec.c b/rtkbt/addon/vr_bee2_hidraw_daemon/hidraw/sbc/sbcdec.c
new file mode 100755
index 0000000..2c49690
--- /dev/null
+++ b/rtkbt/addon/vr_bee2_hidraw_daemon/hidraw/sbc/sbcdec.c
@@ -0,0 +1,1279 @@
+/******************************************************
+* Project      : SBC
+* FileName     : $RCSfile: sbcdec.c,v $
+* Created      : April 2005
+* Version      : $Revision: 1.10 $
+* Last access  : $Date: 2005/10/27 06:06:23 $
+* Archive      : $Source: /var/lib/cvs/sw/src/codec/sbc/sbcdec.c,v $
+* Copyright    : (C) Stollmann E+V GmbH 2005
+* Author       : Klaus Muehle (km@stollmann.de)
+* Compiler     : ANSI C compatible
+* Environment  : Windows NT 2000 user mode
+* Contents     : implementation of SBC decoder
+* Note         : 
+* History      : 
+*              : $Log: sbcdec.c,v $
+*              : Revision 1.10  2005/10/27 06:06:23  lv
+*              : fixed high level distortion problems
+*              : various optimizations
+*              : added sbcGetParams
+*              :
+*              : Revision 1.9  2005/10/26 08:06:40  jz
+*              : moved constant data to "const" memory
+*              :
+*              : Revision 1.8  2005/07/28 10:14:54  jz
+*              : Avoid castings
+*              :
+*              : Revision 1.7  2005/06/01 06:00:28  lv
+*              : integrated internal headers
+*              : fixed joint decoding bug
+*              :
+*              : Revision 1.6  2005/05/12 09:27:19  lv
+*              : eliminated bracket warning
+*              :
+*              : Revision 1.5  2005/05/12 08:05:32  lv
+*              : improved precision by using GUARD_HALFBIT
+*              : non optimized fix for JOint distortion
+*              :
+*              : Revision 1.4  2005/04/27 07:58:17  lv
+*              : changed internal sample representation from short to int
+*              :
+*              : Revision 1.3  2005/04/26 08:37:11  lv
+*              : formatting
+*              :
+*              : Revision 1.2  2005/04/26 08:21:06  lv
+*              : added crc creation
+*              :
+*              : Revision 1.1  2005/04/21 09:52:28  lv
+*              : first checkin
+*              :
+*******************************************************
+* sbcdec.c
+******************************************************/
+
+#if 1
+
+#include <string.h>
+#include <stdio.h>
+#include "sbc.h"
+
+
+
+/* arm compiler */
+#ifdef __arm
+# define INLINE __inline
+# define VALUE_IN_REGS __value_in_regs
+# define PURE
+#else
+# define INLINE
+# define VALUE_IN_REGS
+# define PURE
+#endif
+
+/* macros and types */
+#if !defined min
+#define min(a,b)    (((a) < (b)) ? (a) : (b))
+#endif
+
+#define limit(a) \
+  if (a > 1073709056)\
+  a = 1073709056;\
+  if (a < -1073741824)\
+  a = -1073741824;
+/* limit to 32767 << GUARD resp.  -32768 << GUARD */
+
+/* sbc defines */
+#define GUARD           15
+#define GUARD_MINUS_2   13
+#define GUARD_HALFBIT   16384   /* must equal (1 << (GUARD - 1)) */ 
+
+
+/* structs, typedefs */
+typedef struct tagSBCData  
+{
+  unsigned channel_mode;
+  unsigned allocation_method;
+  unsigned nrof_subbands;
+  unsigned nrof_blocks;
+  unsigned nrof_channels;
+  unsigned sampling_frequency; /* 0..3 */
+  int bitpool;
+  unsigned join;
+} TSBCData;
+
+typedef struct tagSampleData
+{
+  int bits;
+  int scale_factor;
+  int sb_sample;
+#if defined F_SBC_DEBUG_FILE
+  int qs;
+#endif
+} TSampleData;
+
+/* global variables */
+static TSBCData SBCData;
+static TSampleData sampleData[SBC_MAX_CHANNELS + 1][SBC_MAX_SUBBANDS]; /* one additional line for terminator  */
+static int v[2][200]; /* size 200 instead of 160 for optimized pointer management  */
+
+/* global constants */
+static const unsigned blockNumbers[4] = {4,  8,  12,  16};
+static const unsigned subbandNumbers[2]   = {4,  8};
+static const int offset4[4][4] = {{-1, 0, 0, 0}, {-2, 0, 0, 1}, {-2, 0, 0, 1}, {-2, 0, 0, 1}};
+static const int offset8[4][8] = {{-2, 0, 0, 0, 0, 0, 0, 1}, {-3, 0, 0, 0, 0, 0, 1, 2}, {-4, 0, 0, 0, 0, 0, 1, 2}, {-4, 0, 0, 0, 0, 0, 1, 2}};
+
+static const int divTable[32] = 
+{
+  0, 65536, 43691, 37449, 34953, 33825, 33288, 33026,
+  32897, 32832, 32800, 32784, 32776, 32772, 32770, 32769,
+  32769, 32768, 32768, 32768, 32768, 32768, 32768, 32768,
+  32768, 32768, 32768, 32768, 32768, 32768, 32768, 32768,
+};
+
+static const signed char matrixingTable[20] = 
+{
+ 3, 2, 5, 4, 7, 6, 9, 8, 11, 10, 13, 12, 15, 14, 17, 16, 19, 18, 1, 0
+};
+
+static const int d4[40] = 
+{
+  0, -70, -196, -358, -503, -510, -245, 401,
+  -1430, -2679, -3785, -4220, -3392, -804, 3778, 10177,
+  -17772, -25557, -32327, -36940, -38576, -36940, -32327, -25557,
+  17772, 10177, 3778, -804, -3392, -4220, -3785, -2679,
+  1430, 401, -245, -510, -503, -358, -196, -70,
+};
+
+static const int d8[80] = 
+{
+  0, -41, -90, -145, -527, -551, -523, -424,
+  -1484, -2105, -2742, -3342, -3391, -2322, -767, 1289,
+  -17826, -21754, -25579, -29150, -38523, -38113, -36898, -34934,
+  17826, 13943, 10243, 6845, -3391, -4016, -4252, -4169,
+  1484, 917, 432, 47, -527, -468, -387, -299,
+  -216, -299, -387, -468, -236, 47, 432, 917,
+  -3841, -4169, -4252, -4016, 3838, 6845, 10243, 13943,
+  -32313, -34934, -36898, -38113, -32313, -29150, -25579, -21754,
+  3838, 1289, -767, -2322, -3841, -3342, -2742, -2105,
+  -236, -424, -523, -551, -216, -145, -90, -41,
+};
+
+static const int nik4[4][8] = 
+{
+  23170, 12540, 0, -12540, -23170, -30274, -32768, -30274,
+  -23170, -30274, 0, 30274, 23170, -12540, -32768, -12540,
+  -23170, 30274, 0, -30274, 23170, 12540, -32768, 12540,
+  23170, -12540, 0, 12540, -23170, 30274, -32768, 30274,
+};
+
+static const int nik8[8][16] =
+{
+  23170, 18205, 12540, 6393, 0, -6393, -12540, -18205, -23170, -32138, -30274, -18205, 0, 18205, 30274, 32138,
+  -23170, 6393, 30274, 27246, 0, -27246, -30274, -6393, 23170, 27246, -12540, -32138, 0, 32138, 12540, -27246,
+  23170, -27246, -12540, 32138, 0, -32138, 12540, 27246, -23170, -6393, 30274, -27246, 0, 27246, -30274, 6393,
+  -23170, 32138, -30274, 18205, 0, -18205, 30274, -32138, 23170, -18205, 12540, -6393, 0, 6393, -12540, 18205,
+  -23170, -27246, -30274, -32138, -32768, -32138, -30274, -27246, 23170, 6393, -12540, -27246, -32768, -27246, -12540, 6393,
+  23170, 32138, 12540, -18205, -32768, -18205, 12540, 32138, -23170, 18205, 30274, -6393, -32768, -6393, 30274, 18205,
+  -23170, -18205, 30274, 6393, -32768, 6393, 30274, -18205, 23170, -32138, 12540, 18205, -32768, 18205, 12540, -32138,
+  23170, -6393, -12540, 27246, -32768, 27246, -12540, -6393, -23170, 27246, -30274, 32138, -32768, 32138, -30274, 27246,
+};
+
+static const unsigned char crcTable[256] = 
+{
+  0x00, 0x1D, 0x3A, 0x27, 0x74, 0x69, 0x4E, 0x53,
+  0xE8, 0xF5, 0xD2, 0xCF, 0x9C, 0x81, 0xA6, 0xBB,
+  0xCD, 0xD0, 0xF7, 0xEA, 0xB9, 0xA4, 0x83, 0x9E,
+  0x25, 0x38, 0x1F, 0x02, 0x51, 0x4C, 0x6B, 0x76,
+  0x87, 0x9A, 0xBD, 0xA0, 0xF3, 0xEE, 0xC9, 0xD4,
+  0x6F, 0x72, 0x55, 0x48, 0x1B, 0x06, 0x21, 0x3C,
+  0x4A, 0x57, 0x70, 0x6D, 0x3E, 0x23, 0x04, 0x19,
+  0xA2, 0xBF, 0x98, 0x85, 0xD6, 0xCB, 0xEC, 0xF1,
+  0x13, 0x0E, 0x29, 0x34, 0x67, 0x7A, 0x5D, 0x40,
+  0xFB, 0xE6, 0xC1, 0xDC, 0x8F, 0x92, 0xB5, 0xA8,
+  0xDE, 0xC3, 0xE4, 0xF9, 0xAA, 0xB7, 0x90, 0x8D,
+  0x36, 0x2B, 0x0C, 0x11, 0x42, 0x5F, 0x78, 0x65,
+  0x94, 0x89, 0xAE, 0xB3, 0xE0, 0xFD, 0xDA, 0xC7,
+  0x7C, 0x61, 0x46, 0x5B, 0x08, 0x15, 0x32, 0x2F,
+  0x59, 0x44, 0x63, 0x7E, 0x2D, 0x30, 0x17, 0x0A,
+  0xB1, 0xAC, 0x8B, 0x96, 0xC5, 0xD8, 0xFF, 0xE2,
+  0x26, 0x3B, 0x1C, 0x01, 0x52, 0x4F, 0x68, 0x75,
+  0xCE, 0xD3, 0xF4, 0xE9, 0xBA, 0xA7, 0x80, 0x9D,
+  0xEB, 0xF6, 0xD1, 0xCC, 0x9F, 0x82, 0xA5, 0xB8,
+  0x03, 0x1E, 0x39, 0x24, 0x77, 0x6A, 0x4D, 0x50,
+  0xA1, 0xBC, 0x9B, 0x86, 0xD5, 0xC8, 0xEF, 0xF2,
+  0x49, 0x54, 0x73, 0x6E, 0x3D, 0x20, 0x07, 0x1A,
+  0x6C, 0x71, 0x56, 0x4B, 0x18, 0x05, 0x22, 0x3F,
+  0x84, 0x99, 0xBE, 0xA3, 0xF0, 0xED, 0xCA, 0xD7,
+  0x35, 0x28, 0x0F, 0x12, 0x41, 0x5C, 0x7B, 0x66,
+  0xDD, 0xC0, 0xE7, 0xFA, 0xA9, 0xB4, 0x93, 0x8E,
+  0xF8, 0xE5, 0xC2, 0xDF, 0x8C, 0x91, 0xB6, 0xAB,
+  0x10, 0x0D, 0x2A, 0x37, 0x64, 0x79, 0x5E, 0x43,
+  0xB2, 0xAF, 0x88, 0x95, 0xC6, 0xDB, 0xFC, 0xE1,
+  0x5A, 0x47, 0x60, 0x7D, 0x2E, 0x33, 0x14, 0x09,
+  0x7F, 0x62, 0x45, 0x58, 0x0B, 0x16, 0x31, 0x2C,
+  0x97, 0x8A, 0xAD, 0xB0, 0xE3, 0xFE, 0xD9, 0xC4
+};
+
+
+/* internal functions declarations */
+static void initVTab(int* v);
+
+static void processMatrixing4(const int* fnik, int* s, int* v, int iter);
+static void calcAudioSamples4(int* v, const int* d4, short* x, int mono, int channels);
+static void processMatrixing8(const int* nik, int* s, int* v, int iter);
+static void calcAudioSamples8(int* v, const int* d8, short* x, int iter, int mono, int channels);
+
+static int checkCRC(unsigned char* pInput);
+
+static void computeBits(void);
+static void computeSlicesInPoolStereo( int max_bitneed, int bitneed[SBC_MAX_CHANNELS][SBC_MAX_SUBBANDS]);
+
+/**
+* @brief		init sbc decoder
+* 
+* @param	
+*
+* @return
+*
+*/
+void sbcInitDecoder(void)
+{
+	memset(&SBCData, 0, sizeof(SBCData));
+	memset(&v[0][0], 0, 2*200*4);
+	initVTab(v[0]);
+	initVTab(v[1]);
+}
+
+/**
+* @brief  sbc decode
+* 
+* @param  pInputBuffer
+* @param  inputSize
+* @param  pOutputBuffer
+* @param  pOutputSize
+*
+* @return  
+*
+*/
+int sbcDecode(unsigned char* pInputBuffer, int inputSize, unsigned char* pOutputBuffer, int* pOutputSize)
+{
+	unsigned ch;
+	unsigned blk;
+	unsigned int c;
+	int frameSize;
+	TSBCData* pSBCData = &SBCData;
+	unsigned char* pIn = pInputBuffer;
+	unsigned char* pOut = pOutputBuffer;
+
+	/* read header */
+	c = *pIn++;
+	if (c != SBC_SYNCBYTE)
+	{
+		*pOutputSize = 0;
+		return SBC_NO_SYNCBYTE;
+	}
+
+	c = *pIn++;
+	pSBCData->sampling_frequency = (c >> 6) & 0x03;
+	pSBCData->nrof_blocks = blockNumbers[(c >> 4) & 0x03];
+	pSBCData->channel_mode = (c >> 2) & 0x03;
+	pSBCData->allocation_method = (c >> 1) & 0x01;
+	pSBCData->nrof_subbands = subbandNumbers[(c >> 0) & 0x01];
+	pSBCData->bitpool = *pIn++;
+	*pIn++; /* crc  */
+	pSBCData->nrof_channels = pSBCData->channel_mode == SBC_MODE_MONO ? 1 : 2;
+
+	/* check for sufficient input data */
+	{
+		int sb, bb;
+		frameSize = 4;
+		sb = pSBCData->nrof_subbands;
+		bb = pSBCData->nrof_blocks * pSBCData->bitpool;
+
+		switch (pSBCData->channel_mode)
+		{
+		case SBC_MODE_MONO:
+			frameSize += (sb >>1 ) + (bb >> 3); 
+			/* (bb)>>3 must be rounded towards plus infinity */
+			if (bb & 0x7)
+				frameSize++;
+			break;
+		case SBC_MODE_DUAL:
+			frameSize += sb + (bb >> 2); 
+			break;
+		case SBC_MODE_STEREO:
+			frameSize += sb + (bb >> 3); 
+			/* (bb)>>3 must be rounded towards plus infinity */
+			if (bb & 0x7)
+				frameSize++;
+			break;
+		case SBC_MODE_JOINT:
+			frameSize += sb + ((sb + bb) >> 3); 
+			/* (sb + bb)>>3 must be rounded towards plus infinity */
+			if ((sb + bb) & 0x7)
+				frameSize++;
+			break;
+		}
+
+		if (inputSize < frameSize)
+			return SBC_NOT_ENOUGH_DATA;
+	}
+
+	/* check for sufficient output buffer size */ 
+	{
+		int ns = pSBCData->nrof_channels * pSBCData->nrof_blocks * pSBCData->nrof_subbands;
+
+		if (*pOutputSize < ns * 2)
+		{
+			*pOutputSize = ns;
+			return SBC_BUFFER_TOO_SMALL;
+		}
+	}
+
+	/* check checksum */
+	if (checkCRC(pInputBuffer) != 0)
+	{
+		*pOutputSize = 0;
+		return SBC_CHECKSUM_ERROR;
+	}
+
+	if (pSBCData->channel_mode == SBC_MODE_JOINT)
+	{
+		pSBCData->join = *pIn++;
+		/* filtering of join bits is not required if appropriate iteration is applied  */
+		if (pSBCData->nrof_subbands == 4)
+		{
+			pSBCData->join &= 0xe0;
+		}
+		else
+		{
+			pSBCData->join &= 0xfe; 
+		}
+	}
+
+	/* read scale factors */
+	{
+	TSampleData* pd = &sampleData[0][0];
+	if (pSBCData->nrof_subbands == 4)
+	{
+	  if (pSBCData->channel_mode == SBC_MODE_JOINT)
+	  {
+	    /* data pointer adjustment required due to just 4 join bits in header  */
+	    for (ch = 2; ch > 0; ch--)
+	    {
+	      c = pIn[-1];
+	      pd[0].scale_factor = c & 0x0f;
+	      c = pIn[0];
+	      pd[1].scale_factor = c >> 4;
+	      pd[2].scale_factor = c & 0x0f;
+	      c = pIn[1];
+	      pd[3].scale_factor = c >> 4;
+	      pd  += 8;
+	      pIn += 2;
+	    }
+	  } /* if joint */
+	  else
+	  {
+	    for (ch = pSBCData->nrof_channels; ch > 0; ch--)
+	    {
+	      c = pIn[0];
+	      pd[0].scale_factor = c >> 4;
+	      pd[1].scale_factor = c & 0x0f;
+	      c = pIn[1];
+	      pd[2].scale_factor = c >> 4;
+	      pd[3].scale_factor = c & 0x0f;
+	      pd  += 8;
+	      pIn += 2;
+	    }
+	  }
+	} /* if 4 subbands */
+	else
+	{
+	  for (ch = pSBCData->nrof_channels; ch > 0; ch--)
+	  {
+	    c = pIn[0];
+	    pd[0].scale_factor = c >> 4;
+	    pd[1].scale_factor = c & 0x0f;
+	    c = pIn[1];
+	    pd[2].scale_factor = c >> 4;
+	    pd[3].scale_factor = c & 0x0f;
+	    c = pIn[2];
+	    pd[4].scale_factor = c >> 4;
+	    pd[5].scale_factor = c & 0x0f;
+	    c = pIn[3];
+	    pd[6].scale_factor = c >> 4;
+	    pd[7].scale_factor = c & 0x0f;
+	    pd  += 8;
+	    pIn += 4;
+	  }
+	}
+	}
+
+	computeBits();
+
+	{
+	int nrof_samples = pSBCData->nrof_channels * pSBCData->nrof_subbands;
+	TSampleData* pd = &sampleData[0][0];
+	int bits;
+	unsigned int acc = 0;
+	int resBits = 0;
+	int sb = 0;
+
+	if (pSBCData->nrof_subbands == 4)
+	{
+	  if (pSBCData->channel_mode == SBC_MODE_JOINT)
+	  {
+	    /* data pointer adjustment required due to just 4 join bits in header  */
+	    resBits = 4;
+	    acc = pIn[-1] & 0x0f;
+	  }
+	}
+
+	if (pSBCData->nrof_channels == 2)
+	{
+	  if (pSBCData->nrof_subbands == 4)
+	  {
+	    /* move TSampleData structs into one row within sampleData array */
+	    memcpy(&pd[4], &pd[8], 4 * sizeof(TSampleData));
+	  }
+	}
+
+	/* set terminator */
+	pd[nrof_samples].bits = SBC_TERMINATOR; /* terminator cannot be 1 because legal bit lengths of 1 may occur ! */
+
+	/* reconstruct frequency subband samples */
+	for (blk = pSBCData->nrof_blocks; blk > 0; blk--)
+	{
+	  pd = &sampleData[0][0];
+	  for (;;)
+	  {
+	    /* advantages of this loop optimizing:
+	    - testing only done if bits != 0, i.e. for less than half of the iterations
+	    - no updating of a loop variable
+	    - no use of a register
+	    - no entry test */
+	    if ((bits = (*pd++).bits) != 0)
+	    {
+	      int qs;
+	      int msk;
+	      /* break on terminator */
+	      if (bits < 0)  /* arm assembler optimization; saves 3 cycles compared to bits == SBC_TERMINATOR ! */
+	        break;
+	      while (bits > resBits)
+	      {
+	        /* load 16 new bits into accumulator */
+	        acc <<= 16;
+	        acc |= *pIn++ << 8;
+	        acc |= *pIn++;
+	        resBits += 16;
+	      }
+	      resBits -= bits;
+	      msk = (1 << bits) - 1;
+	      qs = ((acc >> resBits) & msk);
+#if defined F_SBC_DEBUG_FILE
+	      pd[-1].qs = qs;
+#endif
+	      /* use value precomputed with divTable; this leads to a value guarded by GUARD + bits - scale_factor - 2 */
+	      /* (msk >> 1) is a short form of (1 << (bits - ) - 1) */
+	      pd[-1].sb_sample = ((qs - (msk >> 1)) * divTable[bits]) >> (GUARD_MINUS_2 + pd[-1].bits - pd[-1].scale_factor);
+	      if (pd[-1].sb_sample < 0)
+	        pd[-1].sb_sample++;
+
+	    } /* if bits != 0 */
+	    else
+	    {
+#if defined F_SBC_DEBUG_FILE
+	      pd[-1].qs = 0;
+#endif
+	      pd[-1].sb_sample = 0;
+	    }
+	  } /* for samples */
+
+	  /* decode joint samples */
+	  if (pSBCData->channel_mode == SBC_MODE_JOINT)
+	  {
+	    int nsb;
+	    pd = &sampleData[0][0];
+	    nsb = pSBCData->nrof_subbands;
+	    for (sb = nsb - 2; sb >= 0; sb--)
+	    {
+	      if (pSBCData->join & (0x80 >> sb))
+	      {
+	        int sbR = sb + nsb;
+	        int temp = pd[sb].sb_sample;
+	        pd[sb].sb_sample = temp + pd[sbR].sb_sample;
+	        pd[sbR].sb_sample = temp - pd[sbR].sb_sample;
+	      } /* if subband joint*/
+	    } /* for sb */
+	  } /* if joint */
+
+	  /* reconstruct audio samples */
+	  {
+	    static int offset = 0;
+	    int* pv;
+
+	    if (offset <= 0)
+	      offset = 180;
+	    else
+	      offset -= 20;
+
+	    pv = &v[0][0] + offset;
+
+	    if (pSBCData->nrof_subbands == 4)
+	    {
+	      processMatrixing4( &nik4[0][0], &sampleData[0][0].sb_sample, pv, pSBCData->nrof_channels);
+	      calcAudioSamples4(pv, d4, (short*) pOut, pSBCData->channel_mode == SBC_MODE_MONO, pSBCData->nrof_channels);
+	    }
+	    else
+	    {
+	      processMatrixing8( &nik8[0][0], &sampleData[0][0].sb_sample, pv, pSBCData->nrof_channels);
+	      calcAudioSamples8(pv, d8, (short*) pOut, 2, pSBCData->channel_mode == SBC_MODE_MONO, pSBCData->nrof_channels);
+	    } /* if 4 subbands */
+
+	    pOut += 2 * nrof_samples;
+
+#if defined F_SBC_DEBUG_FILE
+	    {
+	      int sb, nsb;
+	      short* pAudio;
+	      pAudio = (short*) pOut;
+	      nsb = pSBCData->nrof_subbands;
+	      pd = &sampleData[0][0];
+	      for (sb = 0; sb < nsb; sb++)
+	      {
+	        printf("%d, %d, %u, %d, %d\n",
+	          pd[sb].bits, pd[sb].scale_factor, pd[sb].qs, pd[sb].sb_sample, pAudio[sb * 2]);
+	        printf("%d, %d, %u, %d, %d\n",
+	          pd[sb+8].bits, pd[sb+nsb].scale_factor, pd[sb+nsb].qs, pd[sb+nsb].sb_sample, pAudio[sb * 2 + 1]);
+	      }  
+	    }
+#endif
+
+	  }
+	} /* for blk */
+
+	  /* adjust read pointer */
+	if (resBits >= 8)
+	{
+	  pIn--;
+	  if (resBits >= 16)
+	    pIn--;
+	}
+
+#if defined F_SBC_DEBUG_FILE
+	if (pIn - pInputBuffer != frameSize)
+	  printf("! decoded bytes mismatch: frameSize %d, read %d\n", frameSize, (pIn - pInputBuffer));
+#endif
+
+	}
+
+	*pOutputSize = pOut - pOutputBuffer;
+	return (pIn - pInputBuffer);
+}
+
+/**
+* @brief		initialize v array
+* 
+* @param	v
+*
+* @return
+*
+*/
+static void initVTab(int* v)
+{
+	int i;
+	for (i = 0; i < 20; i++)
+	{
+		v[10 * i + 4] = (int) &v[10 * matrixingTable[i]]; /**< set pointer to successor group, first 4 */
+		v[10 * i + 5 + 4] = (int) &v[10 * matrixingTable[i] + 5]; /**< set pointer to successor group, second 4 */
+	}
+}
+
+
+/******************************* checkCRC *******************************/
+/* */
+/************************************************************************/
+static int checkCRC(unsigned char* pInput)
+{
+  int bits = 0;
+  unsigned char data[11];
+  TSBCData* pSBCData = &SBCData;
+  unsigned readCRC = pInput[3];
+  unsigned crc = 0x0f;
+  int i;
+  unsigned octet;
+  int len = 2;
+
+  /* copy relevant data to local array */
+  memcpy(data, pInput + 1, len); /* first two bytes */
+  if (pSBCData->nrof_channels == 2)
+    len *= 2;
+  if (pSBCData->nrof_subbands == 8)
+    len *= 2;
+  if (pSBCData->channel_mode == SBC_MODE_JOINT)
+    len += 1;
+  memcpy(data + 2, pInput + 4, len); /* joint and scale bytes */
+  bits = len * 8; /* joint and scale bits */
+  if (len == 5)
+    bits -= 4;  /* only 4 joint bits for 4 subbands */
+  bits += 16;  /* header bits */
+
+  for (i = 0; i < bits / 8; i++)
+    crc = crcTable[crc ^ data[i]];
+  
+  octet = data[i];
+  for (i = 0; i < bits % 8; i++) 
+  {
+    char bit = ((octet ^ crc) & 0x80) >> 7;
+    crc = ((crc & 0x7f) << 1) ^ (bit ? 0x1d : 0);
+    octet = octet << 1;
+  }
+
+  if (crc != readCRC)
+    return - 1;
+
+  return 0; 
+}
+
+
+/****************************** processMatrixing4 **************************/
+/**/
+/************************************************************************/
+static void processMatrixing4(const int* fnik, int* s, int* v, int iter)
+{
+  int i, si;
+  int v0, v1, v2, v3, v4, v5, v6, v7;
+  while (--iter >= 0)         /* for one or two channels */
+  {
+    const int * nik = fnik;
+    v0 = v1 = v2 = v3 = v4 = v5 = v6 = v7 = GUARD_HALFBIT;
+    for (i = 0; i < 4; i++)    /* iterate through samples */
+    {
+      int k = sizeof(TSampleData) / sizeof(int);    /* size of TSampleData in units of 'short' */
+      si = s[i * k];        /* current frequency sample */
+      if (si)     /* don't waste time on zero sample */
+      {
+        /* process 8 MACs */
+        v0 += *nik++ * si;
+        v1 += *nik++ * si;
+        v2 += *nik++ * si;
+        v3 += *nik++ * si;
+        v4 += *nik++ * si;
+        v5 += *nik++ * si;
+        v6 += *nik++ * si;
+        v7 += *nik++ * si;
+      } /* if (si) */
+      else
+        nik += 8;
+    } /* for i */
+    /* fill v array with MAC results */
+    *v++ = v0 >> GUARD;
+    *v++ = v1 >> GUARD;
+    *v++ = v2 >> GUARD;
+    *v++ = v3 >> GUARD;
+    v += 6;         /* skip fields reserved for pointer management and for 8 subbands */
+    *v++ = v4 >> GUARD;
+    *v++ = v5 >> GUARD;
+    *v++ = v6 >> GUARD;
+    *v++ = v7 >> GUARD;
+    v += 6;         /* skip fields reserved for pointer management and for 8 subbands */
+
+    /* adjust pointers for second channel */
+    v -= 20;
+    v += 200;
+    s += ((sizeof(TSampleData) / sizeof(int)) << 2);
+  } /* while iter */
+}
+
+
+/*************************** calcAudioSamples4 ****************************/
+/**/
+/************************************************************************/
+static void calcAudioSamples4(int* v, const int* d4, short* x, int mono, int channels)
+{
+  int* pv;
+  const int* pd;
+  int x0,x1,x2,x3;
+
+  while (--channels >= 0)
+  {
+    pd     = d4;
+    pv     = v;
+
+    x0 = *pd++ * pv[0] + GUARD_HALFBIT;
+    x1 = *pd++ * pv[1] + GUARD_HALFBIT;
+    x2 = *pd++ * pv[2] + GUARD_HALFBIT;
+    x3 = *pd++ * pv[3] + GUARD_HALFBIT;
+    pv = (int *)(pv[4]);
+    x0 += *pd++ * pv[0];
+    x1 += *pd++ * pv[1];
+    x2 += *pd++ * pv[2];
+    x3 += *pd++ * pv[3];
+    pv = (int *)(pv[4]);
+    x0 += *pd++ * pv[0];
+    x1 += *pd++ * pv[1];
+    x2 += *pd++ * pv[2];
+    x3 += *pd++ * pv[3];
+    pv = (int *)(pv[4]);
+    x0 += *pd++ * pv[0];
+    x1 += *pd++ * pv[1];
+    x2 += *pd++ * pv[2];
+    x3 += *pd++ * pv[3];
+    pv = (int *)(pv[4]);
+    x0 += *pd++ * pv[0];
+    x1 += *pd++ * pv[1];
+    x2 += *pd++ * pv[2];
+    x3 += *pd++ * pv[3];
+    pv = (int *)(pv[4]);
+    x0 += *pd++ * pv[0];
+    x1 += *pd++ * pv[1];
+    x2 += *pd++ * pv[2];
+    x3 += *pd++ * pv[3];
+    pv = (int *)(pv[4]);
+    x0 += *pd++ * pv[0];
+    x1 += *pd++ * pv[1];
+    x2 += *pd++ * pv[2];
+    x3 += *pd++ * pv[3];
+    pv = (int *)(pv[4]);
+    x0 += *pd++ * pv[0];
+    x1 += *pd++ * pv[1];
+    x2 += *pd++ * pv[2];
+    x3 += *pd++ * pv[3];
+    pv = (int *)(pv[4]);
+    x0 += *pd++ * pv[0];
+    x1 += *pd++ * pv[1];
+    x2 += *pd++ * pv[2];
+    x3 += *pd++ * pv[3];
+    pv = (int *)(pv[4]);
+    x0 += *pd++ * pv[0];
+    x1 += *pd++ * pv[1];
+    x2 += *pd++ * pv[2];
+    x3 += *pd++ * pv[3];
+
+    limit(x0);
+    limit(x1);
+    limit(x2);
+    limit(x3);
+
+    if (mono)
+    {
+      /* store result in every output byte */
+      x[0] = x0 >> GUARD;
+      x[1] = x1 >> GUARD;
+      x[2] = x2 >> GUARD;
+      x[3] = x3 >> GUARD;
+    }
+    else
+    {
+      /* store result in every second output byte */
+      x[0] = x0 >> GUARD;
+      x[2] = x1 >> GUARD;
+      x[4] = x2 >> GUARD;
+      x[6] = x3 >> GUARD;
+    }
+    x += 1;    /* go from left to right channel */
+    v += 200;  /* goto next v group */
+  } /* while channels */
+}
+
+
+/****************************** processMatrixing8 **************************/
+/**/
+/************************************************************************/
+static void processMatrixing8(const int* fnik, int* s, int* v, int iter)
+{
+  int i, si;
+  int v0, v1, v2, v3, v4, v5, v6, v7;
+  while (--iter >= 0)         /* for one or two channels */
+  {
+    const int* nik = fnik;
+    v0 = v1 = v2 = v3 = v4 = v5 = v6 = v7 = GUARD_HALFBIT;    /* using 8 registers for speed */
+    for (i = 0; i < 8; i++)    /* iterate through samples */
+    {
+      int k = sizeof(TSampleData) / sizeof(int);    /* size of TSampleData in units of 'int' */
+      si = s[i * k];        /* current frequency sample */
+      if (si)     /* don't waste time on zero sample */
+      {
+        /* process 8 MACs */
+        v0 += *nik++ * si;
+        v1 += *nik++ * si;
+        v2 += *nik++ * si;
+        v3 += *nik++ * si;
+        v4 += *nik++ * si;
+        v5 += *nik++ * si;
+        v6 += *nik++ * si;
+        v7 += *nik++ * si;
+      } /* if (si) */
+      else
+        nik += 8;
+    } /* for i */
+
+    /* fill v array with MAC results */
+    *v++ = v0 >> GUARD;
+    *v++ = v1 >> GUARD;
+    *v++ = v2 >> GUARD;
+    *v++ = v3 >> GUARD;
+    v++;         /* skip field reserved for pointer management */
+    *v++ = v4 >> GUARD;
+    *v++ = v5 >> GUARD;
+    *v++ = v6 >> GUARD;
+    *v++ = v7 >> GUARD;
+    v++;        /* skip field reserved for pointer management */
+
+    /* process the second group of 8 v fields */
+    v0 = v1 = v2 = v3 = v4 = v5 = v6 = v7 = GUARD_HALFBIT;
+    for (i = 0; i < 8; i++)
+    {
+      int k = sizeof(TSampleData) / sizeof(int);
+      si = s[i * k];
+      if (si)
+      {
+        v0 += *nik++ * si;
+        v1 += *nik++ * si;
+        v2 += *nik++ * si;
+        v3 += *nik++ * si;
+        v4 += *nik++ * si;
+        v5 += *nik++ * si;
+        v6 += *nik++ * si;
+        v7 += *nik++ * si;
+      } /* if */
+      else
+        nik += 8;
+    } /* for */
+    *v++ = v0 >> GUARD;
+    *v++ = v1 >> GUARD;
+    *v++ = v2 >> GUARD;
+    *v++ = v3 >> GUARD;
+    v++;
+    *v++ = v4 >> GUARD;
+    *v++ = v5 >> GUARD;
+    *v++ = v6 >> GUARD;
+    *v++ = v7 >> GUARD;
+    v++;
+    /* adjust pointers for second channel */
+    v -= 20;
+    v += 200;
+    s += ((sizeof(TSampleData) / sizeof(int)) << 3);
+  } /* while iter */
+}
+
+
+/*************************** calcAudioSamples8 ****************************/
+/**/
+/************************************************************************/
+static void calcAudioSamples8(int* v, const int* d8, short* x, int iter, int mono, int channels)
+{
+  int* pv;
+  const int*  pd;
+  int x0, x1, x2, x3;
+
+  while (--channels >= 0)
+  {
+    pd     = d8;
+    pv     = v;
+    while (--iter >= 0)
+    {
+      x0 = *pd++ * pv[0] + GUARD_HALFBIT;
+      x1 = *pd++ * pv[1] + GUARD_HALFBIT;
+      x2 = *pd++ * pv[2] + GUARD_HALFBIT;
+      x3 = *pd++ * pv[3] + GUARD_HALFBIT;
+      pv = (int *)(pv[4]);
+      x0 += *pd++ * pv[0];
+      x1 += *pd++ * pv[1];
+      x2 += *pd++ * pv[2];
+      x3 += *pd++ * pv[3];
+      pv = (int *)(pv[4]);
+      x0 += *pd++ * pv[0];
+      x1 += *pd++ * pv[1];
+      x2 += *pd++ * pv[2];
+      x3 += *pd++ * pv[3];
+      pv = (int *)(pv[4]);
+      x0 += *pd++ * pv[0];
+      x1 += *pd++ * pv[1];
+      x2 += *pd++ * pv[2];
+      x3 += *pd++ * pv[3];
+      pv = (int *)(pv[4]);
+      x0 += *pd++ * pv[0];
+      x1 += *pd++ * pv[1];
+      x2 += *pd++ * pv[2];
+      x3 += *pd++ * pv[3];
+      pv = (int *)(pv[4]);
+      x0 += *pd++ * pv[0];
+      x1 += *pd++ * pv[1];
+      x2 += *pd++ * pv[2];
+      x3 += *pd++ * pv[3];
+      pv = (int *)(pv[4]);
+      x0 += *pd++ * pv[0];
+      x1 += *pd++ * pv[1];
+      x2 += *pd++ * pv[2];
+      x3 += *pd++ * pv[3];
+      pv = (int *)(pv[4]);
+      x0 += *pd++ * pv[0];
+      x1 += *pd++ * pv[1];
+      x2 += *pd++ * pv[2];
+      x3 += *pd++ * pv[3];
+      pv = (int *)(pv[4]);
+      x0 += *pd++ * pv[0];
+      x1 += *pd++ * pv[1];
+      x2 += *pd++ * pv[2];
+      x3 += *pd++ * pv[3];
+      pv = (int *)(pv[4]);
+      x0 += *pd++ * pv[0];
+      x1 += *pd++ * pv[1];
+      x2 += *pd++ * pv[2];
+      x3 += *pd++ * pv[3];
+
+      limit(x0);
+      limit(x1);
+      limit(x2);
+      limit(x3);
+
+      if (mono)
+      {
+        /* store result in every output byte */
+        x[0] = x0 >> GUARD;
+        x[1] = x1 >> GUARD;
+        x[2] = x2 >> GUARD;
+        x[3] = x3 >> GUARD;
+      }
+      else
+      {
+        /* store result in every second output byte */
+        x[0] = x0 >> GUARD;
+        x[2] = x1 >> GUARD;
+        x[4] = x2 >> GUARD;
+        x[6] = x3 >> GUARD;
+      }
+      x     += (mono ? 4 : 8); /* step to next group */
+      pv     = v  + 5;
+    } /* while iter */
+    x -= 16;
+    x += 1;    /* go from left to right channel */
+    v += 200;  /* goto next v group */
+    iter = 2;
+  } /* while channels */
+}
+
+
+/*************************** computeBits *********************************/
+/* this implementation has been taken directly from the specification */
+/************************************************************************/
+static void computeBits(void)
+{
+  int loudness;
+  int max_bitneed = 0;
+  unsigned ch;
+  unsigned sb;
+  int bitneed[SBC_MAX_CHANNELS][SBC_MAX_SUBBANDS];
+  TSBCData* pSBCData= &SBCData;
+
+  if (pSBCData->channel_mode == SBC_MODE_MONO || pSBCData->channel_mode == SBC_MODE_DUAL)
+  {
+    for (ch=0; ch < pSBCData->nrof_channels; ch++)
+    {
+      /* Mono and Dual_Channel Bit Allocation */
+      if (pSBCData->allocation_method == SBC_ALLOCSNR)
+      {
+        for (sb = 0; sb < pSBCData->nrof_subbands; sb++)
+        {
+          int b = bitneed[ch][sb] = sampleData[ch][sb].scale_factor;
+          if (max_bitneed < b)
+            max_bitneed = b;
+        }
+      }
+      else
+      {
+        for (sb = 0;sb < pSBCData->nrof_subbands; sb++)
+        {
+          if (sampleData[ch][sb].scale_factor == 0)
+          {
+            int b = bitneed[ch][sb] = -5;
+            if (max_bitneed < b)
+              max_bitneed = b;
+          }
+          else
+          {
+            if (pSBCData->nrof_subbands == 4)
+            {
+              loudness = sampleData[ch][sb].scale_factor - offset4[pSBCData->sampling_frequency][sb];
+            }
+            else
+            {
+              loudness = sampleData[ch][sb].scale_factor - offset8[pSBCData->sampling_frequency][sb];
+            }
+            if (loudness > 0)
+            {
+              bitneed[ch][sb] = loudness / 2;
+              if (max_bitneed < loudness / 2)
+                max_bitneed = loudness / 2;
+
+            }
+            else
+            {
+              bitneed[ch][sb] = loudness;
+              if (max_bitneed < loudness)
+                max_bitneed = loudness;
+            }
+          }
+        }
+      }
+
+      /* Next an iterative process finds out how many bitslices fit into the bitpool */
+      {
+        int bitcount = 0;
+        int slicecount = 0;
+        int bitslice = max_bitneed + 1; /* init just above the largest sf */
+        do
+        {
+          bitslice--;
+          bitcount += slicecount;
+          slicecount = 0;
+          for (sb = 0;sb < pSBCData->nrof_subbands; sb++)
+          {
+            if((bitneed[ch][sb] > bitslice + 1) && (bitneed[ch][sb] < bitslice + 16))
+              slicecount++;
+            else if(bitneed[ch][sb] == bitslice + 1)
+              slicecount += 2;
+          }
+        } while (bitcount + slicecount < pSBCData->bitpool);
+
+        if (bitcount + slicecount == pSBCData->bitpool)
+        {
+          bitcount += slicecount;
+          bitslice--;
+        }
+
+        /* Thereafter, bits are distributed until the last bitslice is reached */
+        for (sb=0;sb<pSBCData->nrof_subbands;sb++)
+        {
+          if(bitneed[ch][sb]<bitslice+2)
+            sampleData[ch][sb].bits=0;
+          else
+            sampleData[ch][sb].bits=min(bitneed[ch][sb]-bitslice,16);
+        }
+
+        /* The remaining bits are allocated starting at subband 0 */
+        sb=0;
+        while(bitcount < pSBCData->bitpool && sb < pSBCData->nrof_subbands)
+        {
+          if((sampleData[ch][sb].bits>=2)&&(sampleData[ch][sb].bits<16))
+          {
+            sampleData[ch][sb].bits++; bitcount++;
+          }
+          else
+            if((bitneed[ch][sb]==bitslice+1)&&(pSBCData->bitpool>bitcount+1))
+            {
+              sampleData[ch][sb].bits=2; bitcount+=2;
+            }
+            sb++;
+        }
+        sb=0;
+        while(bitcount < pSBCData->bitpool && sb < pSBCData->nrof_subbands)
+        {
+          if (sampleData[ch][sb].bits < 16)
+          {
+            sampleData[ch][sb].bits++;
+            bitcount++;
+          }
+          sb++;
+        }
+      }
+    } /* for ch */
+  } /* MONO and DUAL */
+  else
+  {
+    /* Stereo and Joint_Stereo Bit Allocation */
+    if (pSBCData->allocation_method == SBC_ALLOCSNR)
+    {
+      for (ch = 0;ch < 2; ch++)
+      {
+        for (sb = 0; sb < pSBCData->nrof_subbands; sb++)
+        {
+          int b = bitneed[ch][sb] = sampleData[ch][sb].scale_factor;
+          if (b > max_bitneed)
+            max_bitneed = b;
+        }
+      }
+    }
+    else
+    {
+      for (ch = 0;ch < 2; ch++)
+      {
+        for (sb=0;sb<pSBCData->nrof_subbands;sb++)
+        {
+          if (sampleData[ch][sb].scale_factor == 0)
+          {
+            bitneed[ch][sb] = -5;
+            if (max_bitneed < -5)
+              max_bitneed = -5;
+          }
+          else
+          {
+            if (pSBCData->nrof_subbands == 4)
+            {
+              loudness = sampleData[ch][sb].scale_factor - offset4[pSBCData->sampling_frequency][sb];
+            }
+            else
+            {
+              loudness = sampleData[ch][sb].scale_factor - offset8[pSBCData->sampling_frequency][sb];
+            }
+            if (loudness > 0)
+            {
+              bitneed[ch][sb] = (loudness >> 1);
+              if ((loudness >> 1) > max_bitneed)
+                max_bitneed = (loudness >> 1);
+            }
+            else
+            {
+              bitneed[ch][sb] = loudness;
+              if (max_bitneed < loudness)
+                max_bitneed = loudness;
+            }
+          }
+        }
+      }
+    }    
+    /* Next an iterative process finds out how many bitslices fit into the bitpool */
+    computeSlicesInPoolStereo(max_bitneed, bitneed);
+  } /* Joint and Stereo Allocation */
+} /* computeBits */
+
+
+/*************************** computeSlicesInPoolStereo ******************/
+/* An iterative process finds out how many bitslices fit into the bitpool */
+/* The result is stored in the global array "bits" */
+/* this implementation has been taken directly from the specification */
+/************************************************************************/
+static void computeSlicesInPoolStereo( int max_bitneed, int bitneed[SBC_MAX_CHANNELS][SBC_MAX_SUBBANDS])
+{
+
+  int bitcount    = 0;
+  int slicecount  = 0;
+  int bitslice    = max_bitneed + 1; /* init just above the largest sf */
+  int sb, ch;
+  TSBCData* pSBCData= &SBCData;
+  int bitpool   = pSBCData->bitpool;
+  int nrof_subbands = pSBCData->nrof_subbands;
+
+  int* bn0 = bitneed[0];
+  int* bn1 = bitneed[1];
+
+  do
+  {
+    bitcount += slicecount;
+    slicecount = 0;
+
+    sb = nrof_subbands - 1;
+    do
+    {
+      int bitn;
+      /* channel 0 */
+      bitn = bn0[sb];
+      if((bitn >= bitslice) && (bitn < bitslice + 15))
+        slicecount++;
+      if(bitn == bitslice)
+        slicecount++;
+
+      /* channel 1 */
+      bitn = bn1[sb];
+      if((bitn >= bitslice) && (bitn < bitslice + 15))
+        slicecount++;
+      if(bitn == bitslice)
+        slicecount++;
+
+    } while (sb--);
+    bitslice--;
+  } while (bitcount + slicecount < bitpool);
+
+  if (bitcount + slicecount == bitpool)
+  {
+    bitcount += slicecount;
+    bitslice--;
+  }
+
+  /* Thereafter bits are distributed until the last bitslice is reached */
+  for (ch = 0; ch < 2; ch++)
+  {
+    for (sb=0;sb<nrof_subbands;sb++) 
+    {
+      if(bitneed[ch][sb] < bitslice + 2) 
+        sampleData[ch][sb].bits = 0; 
+      else 
+        sampleData[ch][sb].bits = min(bitneed[ch][sb] - bitslice, 16); 
+    }
+  }
+
+  /* The remaining bits are allocated starting with subband 0 of the first channel */
+  {
+    unsigned ch = 0;
+    sb=0;
+    while(bitcount < pSBCData->bitpool && sb < (int)pSBCData->nrof_subbands)
+    {
+      if((sampleData[ch][sb].bits>=2)&&(sampleData[ch][sb].bits<16))
+      {
+        sampleData[ch][sb].bits++; bitcount++;
+      }
+      else if((bitneed[ch][sb]==bitslice+1)&&(pSBCData->bitpool>bitcount+1))
+      {
+        sampleData[ch][sb].bits=2; bitcount+=2;
+      }
+      if (ch == 1)
+      {
+        ch = 0;
+        sb++;
+      }
+      else
+      {
+        ch = 1;
+      }
+    }
+    ch=0;
+    sb=0;
+    while(bitcount < pSBCData->bitpool && sb < (int)pSBCData->nrof_subbands)
+    {
+      if (sampleData[ch][sb].bits < 16)
+      {
+        sampleData[ch][sb].bits++;
+        bitcount++;
+      }
+      if (ch == 1)
+      {
+        ch = 0;
+        sb++;
+      }
+      else
+      {
+        ch = 1;
+      }
+    }
+  }
+}
+
+/*************************** sbcGetParams ********************************/
+/**/
+/************************************************************************/
+int sbcGetParams(unsigned char* pInputBuffer, int inputSize, TSBCParams* pParams)
+{
+	unsigned int c;
+	unsigned char* pIn = pInputBuffer;
+
+	if (inputSize < 3)
+		return SBC_NOT_ENOUGH_DATA;
+
+	/* read header */
+	c = *pIn++;
+	if (c != SBC_SYNCBYTE)
+		return SBC_NO_SYNCBYTE;
+
+	c = *pIn++;
+	pParams->samplingFrequency = (c >> 6) & 0x03;
+	pParams->blockNumber = (c >> 4) & 0x03;
+	pParams->channelMode = (c >> 2) & 0x03;
+	pParams->allocMethod = (c >> 1) & 0x01;
+	pParams->subbandNumber = (c >> 0) & 0x01;
+	pParams->bitpool = *pIn++;
+
+	return SBC_SUCCESS;	
+}
+
+#endif /*F_BT_MPA_A2DP_SINK*/
diff --git a/rtkbt/addon/vr_bee2_hidraw_daemon/hidraw/sbc/sbcenc.c b/rtkbt/addon/vr_bee2_hidraw_daemon/hidraw/sbc/sbcenc.c
new file mode 100755
index 0000000..17c7277
--- /dev/null
+++ b/rtkbt/addon/vr_bee2_hidraw_daemon/hidraw/sbc/sbcenc.c
@@ -0,0 +1,1705 @@
+/******************************************************
+* Project      : SBC
+* FileName     : $RCSfile: sbcenc.c,v $
+* Created      : April 2005
+* Version      : $Revision: 1.10 $
+* Last access  : $Date: 2005/10/27 06:31:28 $
+* Archive      : $Source: /var/lib/cvs/sw/src/codec/sbc/sbcenc.c,v $
+* Copyright    : (C) Stollmann E+V GmbH 2005
+* Author       : Lutz Vogelsang (lv@stollmann.de)
+* Compiler     : ANSI C compatible
+* Environment  : Windows NT 2000 user mode
+* Contents     : implementation of SBC encoder
+* Note         : 
+* History      : 
+*              : $Log: sbcenc.c,v $
+*              : Revision 1.10  2005/10/27 06:31:28  lv
+*              : corrected sample buffer size
+*              :
+*              : Revision 1.9  2005/10/27 06:06:34  lv
+*              : fixed high level distortion problems
+*              : various optimizations
+*              :
+*              : Revision 1.8  2005/10/26 08:06:40  jz
+*              : moved constant data to "const" memory
+*              :
+*              : Revision 1.7  2005/07/07 08:37:34  jz
+*              : Cosmetics
+*              :
+*              : Revision 1.6  2005/06/01 06:00:28  lv
+*              : integrated internal headers
+*              : fixed joint decoding bug
+*              :
+*              : Revision 1.5  2005/04/27 07:48:41  lv
+*              : tiny optimizations
+*              :
+*              : Revision 1.4  2005/04/26 08:37:11  lv
+*              : formatting
+*              :
+*              : Revision 1.3  2005/04/26 08:20:47  lv
+*              : added 4 subband implementation, crc creation,
+*              : joint mode
+*              :
+*              : Revision 1.2  2005/04/21 12:07:14  lv
+*              : 4 subband encoding implemented
+*              :
+*              : Revision 1.1  2005/04/21 09:52:54  lv
+*              : first checkin; 4 subbands not yet functional
+*              :
+*******************************************************
+* sbcenc.c
+******************************************************/
+
+#include <flags.h>
+#if 1
+
+#include <string.h>
+#include <stdio.h>
+#include <sbc.h>
+
+
+
+/* arm compiler */
+#ifdef __arm
+# define INLINE __inline
+# define VALUE_IN_REGS __value_in_regs
+# define PURE
+#else
+# define INLINE
+# define VALUE_IN_REGS
+# define PURE
+#endif
+
+/* macros and types */
+#if !defined min
+#define min(a,b)    (((a) < (b)) ? (a) : (b))
+#endif
+
+#define limit(a) \
+  if (a > 32767)\
+  a = 32767;\
+  if (a < -32768)\
+  a = -32768;
+
+/* sbc defines */
+#define GUARD_QUANT          16
+#define GUARD_QUANT_HALFBIT  32768   /* must equal (1 << (GUARD_QUANT - 1)) */ 
+#define GUARD_PAR            17
+#define GUARD_PAR_HALFBIT    65536   /* must equal (1 << (GUARD_QUANT - 1)) */ 
+#define GUARD_SUB            15
+#define GUARD_SUB_HALFBIT    16384   /* must equal (1 << (GUARD_QUANT - 1)) */ 
+
+/*#define F_SBC_ENC_USE_FLOAT*/
+/* forces floating point arithmetic for debugging purposes */
+
+#if defined F_SBC_ENC_USE_FLOAT
+#if defined F_SBC_ENC_REUSE_INPUT_BUFFER
+#undef F_SBC_ENC_REUSE_INPUT_BUFFER
+#endif
+#endif
+
+
+/* structs, typedefs */
+typedef struct tagSBCData  
+{
+  unsigned channel_mode;
+  unsigned allocation_method;
+  unsigned nrof_subbands;
+  unsigned nrof_blocks;
+  unsigned nrof_channels;
+  unsigned sampling_frequency; /* 0..3 */
+  int bitpool;
+} TSBCData;
+
+typedef struct tagSampleData
+{
+  int bits;
+  int scale_factor;
+  int calc1;
+  int calc2;
+#if defined F_SBC_DEBUG_FILE
+  int sb_sample;
+  unsigned qs;
+#endif
+} TSampleData;
+
+/* global variables */
+static TSBCData SBCData;
+static TSampleData sampleData[SBC_MAX_CHANNELS + 1][SBC_MAX_SUBBANDS]; /* one additional line for terminator  */
+static TSampleData jointSampleData[SBC_MAX_CHANNELS + 1][SBC_MAX_SUBBANDS];
+static unsigned x[SBC_MAX_CHANNELS][(SBC_MAX_SUBBANDS + 1) * 11];
+static unsigned y[SBC_MAX_CHANNELS][SBC_MAX_SUBBANDS * 2];
+
+#if !defined F_SBC_ENC_REUSE_INPUT_BUFFER
+static int samples[256];
+#endif
+
+#if defined F_SBC_ENC_USE_FLOAT
+static int X[2][80] = {0};
+static double Z[2][80] = {0.0};
+static double Y[2][16] = {0.0};
+static double S[2][16] = {0.0};
+#endif
+
+/* global constants */
+static const unsigned blockNumbers[4] = {4, 8, 12, 16};
+static const unsigned subbandNumbers[2] = {4, 8};
+static const char matrixingTable[11] = {18, 27, 36, 45, 54, 63, 72, 81, 0, 9, 18};
+static const int offset4[4][4] = {{-1,0,0,0},{-2,0,0,1},{-2,0,0,1},{-2,0,0,1}};
+static const int offset8[4][8] = {{-2,0,0,0,0,0,0,1},{-3,0,0,0,0,0,1,2},{-4,0,0,0,0,0,1,2},{-4,0,0,0,0,0,1,2}};
+
+static const int c4[40] = 
+{
+  /* ik iteration 2 * 5 groups @ 4 */
+  0, 70, 196, 358, 1430, 2679, 3785, 4220,
+  17772, 25557, 32327, 36940, -17772, -10177, -3778, 804,
+  -1430, -401, 245, 510, 503, 510, 245, -401,
+  3392, 804, -3778, -10177, 38576, 36940, 32327, 25557,
+  3392, 4220, 3785, 2679, 503, 358, 196, 70,
+};
+
+static const int c8[80] =
+{
+  /* ik iteration 2 * 5 groups @ 8 */
+  0, 21, 45, 73, 108, 149, 194, 234,
+  742, 1052, 1371, 1671, 1921, 2085, 2126, 2008,
+  8913, 10877, 12789, 14575, 16157, 17467, 18449, 19057,
+  -8913, -6971, -5122, -3422, -1919, -644, 383, 1161,
+  -742, -458, -216, -23, 118, 212, 261, 276,
+  264, 276, 261, 212, 118, -23, -216, -458,
+  1696, 1161, 383, -644, -1919, -3422, -5122, -6971,
+  19262, 19057, 18449, 17467, 16157, 14575, 12789, 10877,
+  1696, 2008, 2126, 2085, 1921, 1671, 1371, 1052,
+  264, 234, 194, 149, 108, 73, 45, 21,
+};
+
+static const int mik4[4][8] =
+{
+  23170, 30274, 32768, 30274, 23170, 12540, 0, -12540,
+  -23170, 12540, 32768, 12540, -23170, -30274, 0, 30274,
+  -23170, -12540, 32768, -12540, -23170, 30274, 0, -30274,
+  23170, -30274, 32768, -30274, 23170, -12540, 0, 12540,
+};
+
+static const int mik8[8][16] =
+{
+  23170, 27246, 30274, 32138, 32768, 32138, 30274, 27246, 23170, 18205, 12540, 6393, 0, -6393, -12540, -18205,
+  -23170, -6393, 12540, 27246, 32768, 27246, 12540, -6393, -23170, -32138, -30274, -18205, 0, 18205, 30274, 32138,
+  -23170, -32138, -12540, 18205, 32768, 18205, -12540, -32138, -23170, 6393, 30274, 27246, 0, -27246, -30274, -6393,
+  23170, -18205, -30274, 6393, 32768, 6393, -30274, -18205, 23170, 27246, -12540, -32138, 0, 32138, 12540, -27246,
+  23170, 18205, -30274, -6393, 32768, -6393, -30274, 18205, 23170, -27246, -12540, 32138, 0, -32138, 12540, 27246,
+  -23170, 32138, -12540, -18205, 32768, -18205, -12540, 32138, -23170, -6393, 30274, -27246, 0, 27246, -30274, 6393,
+  -23170, 6393, 12540, -27246, 32768, -27246, 12540, 6393, -23170, 32138, -30274, 18205, 0, -18205, 30274, -32138,
+  23170, -27246, 30274, -32138, 32768, -32138, 30274, -27246, 23170, -18205, 12540, -6393, 0, 6393, -12540, 18205,
+};
+
+static const unsigned char crcTable[256] = 
+{
+  0x00, 0x1D, 0x3A, 0x27, 0x74, 0x69, 0x4E, 0x53,
+  0xE8, 0xF5, 0xD2, 0xCF, 0x9C, 0x81, 0xA6, 0xBB,
+  0xCD, 0xD0, 0xF7, 0xEA, 0xB9, 0xA4, 0x83, 0x9E,
+  0x25, 0x38, 0x1F, 0x02, 0x51, 0x4C, 0x6B, 0x76,
+  0x87, 0x9A, 0xBD, 0xA0, 0xF3, 0xEE, 0xC9, 0xD4,
+  0x6F, 0x72, 0x55, 0x48, 0x1B, 0x06, 0x21, 0x3C,
+  0x4A, 0x57, 0x70, 0x6D, 0x3E, 0x23, 0x04, 0x19,
+  0xA2, 0xBF, 0x98, 0x85, 0xD6, 0xCB, 0xEC, 0xF1,
+  0x13, 0x0E, 0x29, 0x34, 0x67, 0x7A, 0x5D, 0x40,
+  0xFB, 0xE6, 0xC1, 0xDC, 0x8F, 0x92, 0xB5, 0xA8,
+  0xDE, 0xC3, 0xE4, 0xF9, 0xAA, 0xB7, 0x90, 0x8D,
+  0x36, 0x2B, 0x0C, 0x11, 0x42, 0x5F, 0x78, 0x65,
+  0x94, 0x89, 0xAE, 0xB3, 0xE0, 0xFD, 0xDA, 0xC7,
+  0x7C, 0x61, 0x46, 0x5B, 0x08, 0x15, 0x32, 0x2F,
+  0x59, 0x44, 0x63, 0x7E, 0x2D, 0x30, 0x17, 0x0A,
+  0xB1, 0xAC, 0x8B, 0x96, 0xC5, 0xD8, 0xFF, 0xE2,
+  0x26, 0x3B, 0x1C, 0x01, 0x52, 0x4F, 0x68, 0x75,
+  0xCE, 0xD3, 0xF4, 0xE9, 0xBA, 0xA7, 0x80, 0x9D,
+  0xEB, 0xF6, 0xD1, 0xCC, 0x9F, 0x82, 0xA5, 0xB8,
+  0x03, 0x1E, 0x39, 0x24, 0x77, 0x6A, 0x4D, 0x50,
+  0xA1, 0xBC, 0x9B, 0x86, 0xD5, 0xC8, 0xEF, 0xF2,
+  0x49, 0x54, 0x73, 0x6E, 0x3D, 0x20, 0x07, 0x1A,
+  0x6C, 0x71, 0x56, 0x4B, 0x18, 0x05, 0x22, 0x3F,
+  0x84, 0x99, 0xBE, 0xA3, 0xF0, 0xED, 0xCA, 0xD7,
+  0x35, 0x28, 0x0F, 0x12, 0x41, 0x5C, 0x7B, 0x66,
+  0xDD, 0xC0, 0xE7, 0xFA, 0xA9, 0xB4, 0x93, 0x8E,
+  0xF8, 0xE5, 0xC2, 0xDF, 0x8C, 0x91, 0xB6, 0xAB,
+  0x10, 0x0D, 0x2A, 0x37, 0x64, 0x79, 0x5E, 0x43,
+  0xB2, 0xAF, 0x88, 0x95, 0xC6, 0xDB, 0xFC, 0xE1,
+  0x5A, 0x47, 0x60, 0x7D, 0x2E, 0x33, 0x14, 0x09,
+  0x7F, 0x62, 0x45, 0x58, 0x0B, 0x16, 0x31, 0x2C,
+  0x97, 0x8A, 0xAD, 0xB0, 0xE3, 0xFE, 0xD9, 0xC4
+};
+
+#if defined F_SBC_ENC_USE_FLOAT
+static const double MIK[8][16] =
+{
+  0.707106781, 0.831469612, 0.923879533, 0.98078528, 1, 0.98078528, 0.923879533, 0.831469612, 0.707106781, 0.555570233, 0.382683432, 0.195090322, 0.0, -0.195090322, -0.382683432, -0.555570233,
+    -0.707106781, -0.195090322, 0.382683432, 0.831469612, 1, 0.831469612, 0.382683432, -0.195090322, -0.707106781, -0.98078528, -0.923879533, -0.555570233, 0.0, 0.555570233, 0.923879533, 0.98078528,
+    -0.707106781, -0.98078528, -0.382683432, 0.555570233, 1, 0.555570233, -0.382683432, -0.98078528, -0.707106781, 0.195090322, 0.923879533, 0.831469612, 0.0, -0.831469612, -0.923879533, -0.195090322,
+    0.707106781, -0.555570233, -0.923879533, 0.195090322, 1, 0.195090322, -0.923879533, -0.555570233, 0.707106781, 0.831469612, -0.382683432, -0.98078528, 0.0, 0.98078528, 0.382683432, -0.831469612,
+    0.707106781, 0.555570233, -0.923879533, -0.195090322, 1, -0.195090322, -0.923879533, 0.555570233, 0.707106781, -0.831469612, -0.382683432, 0.98078528, 0.0, -0.98078528, 0.382683432, 0.831469612,
+    -0.707106781, 0.98078528, -0.382683432, -0.555570233, 1, -0.555570233, -0.382683432, 0.98078528, -0.707106781, -0.195090322, 0.923879533, -0.831469612, 0.0, 0.831469612, -0.923879533, 0.195090322,
+    -0.707106781, 0.195090322, 0.382683432, -0.831469612, 1, -0.831469612, 0.382683432, 0.195090322, -0.707106781, 0.98078528, -0.923879533, 0.555570233, 0.0, -0.555570233, 0.923879533, -0.98078528,
+    0.707106781, -0.831469612, 0.923879533, -0.98078528, 1, -0.98078528, 0.923879533, -0.831469612, 0.707106781, -0.555570233, 0.382683432, -0.195090322, 0.0, 0.195090322, -0.382683432, 0.555570233,
+};
+
+static const double C[80] = 
+{
+  0.00000000E+00, 1.56575398E-04, 3.43256425E-04, 5.54620202E-04,
+    8.23919506E-04, 1.13992507E-03, 1.47640169E-03, 1.78371725E-03,
+    2.01182542E-03, 2.10371989E-03, 1.99454554E-03, 1.61656283E-03,
+    9.02154502E-04, -1.78805361E-04, -1.64973098E-03, -3.49717454E-03,
+    5.65949473E-03, 8.02941163E-03, 1.04584443E-02, 1.27472335E-02,
+    1.46525263E-02, 1.59045603E-02, 1.62208471E-02, 1.53184106E-02,
+    1.29371806E-02, 8.85757540E-03, 2.92408442E-03, -4.91578024E-03,
+    -1.46404076E-02, -2.61098752E-02, -3.90751381E-02, -5.31873032E-02,
+    6.79989431E-02, 8.29847578E-02, 9.75753918E-02, 1.11196689E-01,
+    1.23264548E-01, 1.33264415E-01, 1.40753505E-01, 1.45389847E-01,
+    1.46955068E-01, 1.45389847E-01, 1.40753505E-01, 1.33264415E-01,
+    1.23264548E-01, 1.11196689E-01, 9.75753918E-02, 8.29847578E-02,
+    -6.79989431E-02, -5.31873032E-02, -3.90751381E-02, -2.61098752E-02,
+    -1.46404076E-02, -4.91578024E-03, 2.92408442E-03, 8.85757540E-03,
+    1.29371806E-02, 1.53184106E-02, 1.62208471E-02, 1.59045603E-02,
+    1.46525263E-02, 1.27472335E-02, 1.04584443E-02, 8.02941163E-03,
+    -5.65949473E-03, -3.49717454E-03, -1.64973098E-03, -1.78805361E-04,
+    9.02154502E-04, 1.61656283E-03, 1.99454554E-03, 2.10371989E-03,
+    2.01182542E-03, 1.78371725E-03, 1.47640169E-03, 1.13992507E-03,
+    8.23919506E-04, 5.54620202E-04, 3.43256425E-04, 1.56575398E-04,
+};
+#endif
+
+/* internal functions declarations */
+static void initXTab(int* pTab);
+
+static void calcPartials4(int* pAudio, const int* pFactors, int channels, int* pMatrix);
+static void createSubbandSamples4(int* pMatrix, const int* pFactors, int channels, int* pSamples, TSampleData* pSampleData);
+static void calcPartials8(int* pAudio, const int* pFactors, int channels, int* pMatrix);
+static void createSubbandSamples8(int* pMatrix, const int* pFactors, int channels, int* pSamples, TSampleData* pSampleData);
+static void joinSubbands4(int* pSamples, TSBCData* pSBCData, TSampleData* pSampleData, unsigned char* pJoint);
+static void joinSubbands8(int* pSamples, TSBCData* pSBCData, TSampleData* pSampleData, unsigned char* pJoint);
+
+static void createCRC(unsigned char* pOutput);
+
+static void computeBits(void);
+static void computeSlicesInPoolStereo( int max_bitneed, int bitneed[SBC_MAX_CHANNELS][SBC_MAX_SUBBANDS]);
+
+#if defined F_SBC_DEBUG_FILE
+static void dumpXTab(int* pTab);
+static void dumpYTab(int* pTab);
+static void dumpSampleData(TSampleData* pTab);
+static void dumpInputBuffer(short* pBuffer, int index);
+#endif
+
+/***************************** sbcInit ************************************/
+/**/
+/************************************************************************/
+void sbcInitEncoder(void)
+{
+  initXTab(&x[0][0]);
+}
+
+/**************************** sbcEncode **********************************/
+/**/
+/************************************************************************/
+int sbcEncode(unsigned char* pInputBuffer, int inputSize, TSBCParams* params, unsigned char* pOutputBuffer, int* pOutputSize)
+{  
+  int blk;
+  TSBCData* pSBCData = &SBCData;
+  unsigned char* pScaleFactors;
+  unsigned char* pJoint;
+  unsigned char* pCRC;
+  int frameSize;
+  int reqInSize;
+  TSampleData* pSampleData = &sampleData[0][0];
+  unsigned char* pOut = pOutputBuffer;
+  short* pIn = (short*) pInputBuffer;
+#if defined F_SBC_ENC_REUSE_INPUT_BUFFER
+  short* pSamples;
+#else
+  int* pSamples;
+#endif
+
+  /* transfer public params to internal values */
+  pSBCData->sampling_frequency = (unsigned) params->samplingFrequency;
+  pSBCData->nrof_blocks = blockNumbers[params->blockNumber];
+  pSBCData->channel_mode = params->channelMode;
+  pSBCData->nrof_channels = (params->channelMode == SBC_MODE_MONO) ? 1 : 2;
+  pSBCData->allocation_method = params->allocMethod;
+  pSBCData->nrof_subbands = subbandNumbers[params->subbandNumber];
+  pSBCData->bitpool = params->bitpool;
+
+  /* check for sufficient input buffer size */
+  reqInSize = pSBCData->nrof_subbands * pSBCData->nrof_channels * (pSBCData->nrof_blocks << 1);
+  if (inputSize < reqInSize)
+  {
+    *pOutputSize = 0;
+    return SBC_NOT_ENOUGH_DATA;
+  }
+
+  /* check for sufficient output buffer size */   
+  {
+    int sb, bb;
+    frameSize = 4;
+    sb = pSBCData->nrof_subbands;
+    bb = pSBCData->nrof_blocks * pSBCData->bitpool;
+    
+    switch (pSBCData->channel_mode)
+    {
+    case SBC_MODE_MONO:
+      frameSize += (sb >>1 ) + (bb >> 3); 
+      /* (bb)>>3 must be rounded towards plus infinity */
+      if (bb & 0x7)
+        frameSize++;
+      break;
+    case SBC_MODE_DUAL:
+      frameSize += sb + (bb >> 2); 
+      break;
+    case SBC_MODE_STEREO:
+      frameSize += sb + (bb >> 3); 
+      /* (bb)>>3 must be rounded towards plus infinity */
+      if (bb & 0x7)
+        frameSize++;
+      break;
+    case SBC_MODE_JOINT:
+      frameSize += sb + ((sb + bb) >> 3); 
+      /* (sb + bb)>>3 must be rounded towards plus infinity */
+      if ((sb + bb) & 0x7)
+        frameSize++;
+      break;
+    }
+
+    if (*pOutputSize < frameSize)
+    {
+      *pOutputSize = frameSize;
+      return SBC_BUFFER_TOO_SMALL;
+    }
+  }
+
+  /* create frame header */
+  {
+    unsigned char c = 0;
+    *pOut++ = SBC_SYNCBYTE;
+    c |= (params->samplingFrequency << 6);
+    c |= (params->blockNumber << 4);
+    c |= (params->channelMode << 2);
+    c |= (params->allocMethod << 1);
+    c |= params->subbandNumber;
+    *pOut++ = c;
+    *pOut++ = params->bitpool;
+    pCRC = pOut++;
+
+    if (params->channelMode == SBC_MODE_JOINT)
+    {
+      pJoint = pOut++;
+      *pJoint = 0;
+    }
+  }
+
+  /* reserve space for scale factors */
+  pScaleFactors = pOut;
+  pOut += (pSBCData->nrof_channels * (pSBCData->nrof_subbands >> 1));
+
+  /* initialize sample data */
+  {
+    int i;
+    for (i = 0; i < 16; i++)
+      pSampleData[i].calc1 = pSampleData[i].calc2 = 0;
+  }
+
+
+#if ! defined F_SBC_ENC_USE_FLOAT
+  /* create subband samples */
+  {
+#if ! defined F_SBC_ENC_REUSE_INPUT_BUFFER
+    pSamples = &samples[0];
+#endif
+    for (blk = pSBCData->nrof_blocks; blk > 0; blk--)
+    {
+      static int offset = 0;
+      int* pxLeft, *pxRight;
+      int sb, ns;
+#if defined F_SBC_ENC_REUSE_INPUT_BUFFER
+      pSamples = pIn; /* input buffer is used as temporary memory for subband samples */
+#endif
+
+      /* update audio ring buffer position */
+      if (offset <= 0)
+        offset = 81;
+      else
+        offset -= 9;
+      pxLeft = &x[0][0] + offset;
+      pxRight = pxLeft + 99;
+
+      /* fill in new audio samples */ 
+      {
+        ns = pSBCData->nrof_subbands;
+        for (sb = 0; sb < ns; sb++)
+        {
+          pxLeft[ns - sb - 1] = *pIn++;
+          if (pSBCData->nrof_channels == 2)
+          {
+            pxRight[ns - sb - 1] = *pIn++;
+          }
+        }
+      }
+
+      /* frequency band analysis */
+      if (pSBCData->nrof_subbands == 4)
+      {
+        calcPartials4(pxLeft, &c4[0], pSBCData->nrof_channels, &y[0][0]);
+        createSubbandSamples4(&y[0][0], &mik4[0][0], pSBCData->nrof_channels, (int*) pSamples, &sampleData[0][0]);
+      }
+      else
+      {
+        calcPartials8(pxLeft, &c8[0], pSBCData->nrof_channels, &y[0][0]);
+        createSubbandSamples8(&y[0][0], &mik8[0][0], pSBCData->nrof_channels, (int*) pSamples, &sampleData[0][0]);
+      } /* if subbands */
+
+#if ! defined F_SBC_ENC_REUSE_INPUT_BUFFER
+      pSamples += pSBCData->nrof_subbands * pSBCData->nrof_channels;
+#endif
+    }  /* for blk */
+  }
+
+#else
+
+  /* use floating point arithmetic; for debugging only, for stereo 8 subbands only */
+  {
+#if ! defined F_SBC_ENC_REUSE_INPUT_BUFFER
+    pSamples = &samples[0];
+#endif
+    
+    for (blk = pSBCData->nrof_blocks; blk > 0; blk--)
+    {
+      int i, k;
+
+      /* shift audio samples */
+      for (i = 79; i >= 8; i--)
+      {
+        X[0][i] = X[0][i - 8];
+        X[1][i] = X[1][i - 8];
+      }
+
+      /* fill in new samples */
+      for (i = 7; i >= 0; i--)
+      {
+        X[0][i] = *pIn++;
+        X[1][i] = *pIn++;
+      }
+
+      /* multiply with filter coeffs */
+      for (i = 0; i < 80 ; i++)
+      {
+        Z[0][i] = X[0][i] * C[i];
+        Z[1][i] = X[1][i] * C[i];
+      }
+
+      /* init Y */
+      for (i = 0; i < 16; i++)
+      {
+        Y[0][i] = 0;
+        Y[1][i] = 0;
+      }
+      /* partial calc */
+      for (i = 0; i < 16; i++)
+      {
+        for (k = 0; k < 5; k++)
+        {
+          Y[0][i] += Z[0][i + k * 16];
+          Y[1][i] += Z[1][i + k * 16];
+        }
+      }
+
+      /* init S */
+      for (i = 0; i < 16; i++)
+      {
+        S[0][i] = 0;
+        S[1][i] = 0;
+      }
+      /* subband samples */
+      for (i = 0; i < 8; i++)
+      {
+        for (k = 0; k < 16; k++)
+        {
+          S[0][i] += MIK[i][k] * Y[0][k];
+          S[1][i] += MIK[i][k] * Y[1][k];
+        }
+      }
+
+      for (i = 0; i < 8; i++)
+      {
+        if (S[0][i] >= 0)
+          *pSamples++ = (int) (S[0][i] + 0.5);
+        else
+          *pSamples++ = (int) (S[0][i] - 0.5);
+
+        if (pSamples[-1] > sampleData[0][i].calc1)
+          sampleData[0][i].calc1 = pSamples[-1];
+        if (pSamples[-1] < sampleData[0][i].calc2)
+          sampleData[0][i].calc2 = pSamples[-1];
+      }
+
+      for (i = 0; i < 8; i++)
+      {
+        if (S[1][i] >= 0)
+          *pSamples++ = (int) (S[1][i] + 0.5);
+        else
+          *pSamples++ = (int) (S[1][i] - 0.5);
+
+        if (pSamples[-1] > sampleData[1][i].calc1)
+          sampleData[1][i].calc1 = pSamples[-1];
+        if (pSamples[-1] < sampleData[1][i].calc2)
+          sampleData[1][i].calc2 = pSamples[-1];
+      }
+
+    }  /* for blk */
+  }
+#endif
+
+  /* calculate scale factors */
+  {
+    int i = 0;
+    for (i = pSBCData->nrof_channels * pSBCData->nrof_subbands - 1; i >= 0; i--)
+    {
+      int sf;
+      int mx = pSampleData[i].calc1;
+      int mn = pSampleData[i].calc2 * -1;
+      if (mn > mx)
+        mx = mn;
+
+      if (mx > 255) if (mx > 4095) if (mx > 16383) if (mx > 32767) sf = 15; else sf = 14; else if (mx > 8191) sf = 13; else sf = 12;
+      else if (mx > 1023) if (mx > 2047) sf = 11; else sf = 10; else if (mx > 511) sf = 9; else sf = 8;
+      else if (mx > 15) if (mx > 63) if (mx > 127) sf = 7; else sf = 6; else if (mx > 31) sf = 5; else sf = 4;
+      else if (mx > 3) if (mx > 7) sf = 3; else sf = 2; else if (mx > 1) sf = 1; else sf = 0; 
+
+      pSampleData[i].scale_factor = sf;
+    } /* for i */
+  }
+
+  /* join subband samples */
+#if defined F_SBC_ENC_REUSE_INPUT_BUFFER
+  pSamples = (short*) pInputBuffer;
+#else
+  pSamples = &samples[0];
+#endif
+  if (pSBCData->channel_mode == SBC_MODE_JOINT)
+  {  
+    if (pSBCData->nrof_subbands == 4)
+      joinSubbands4((int*) pSamples, pSBCData, &sampleData[0][0], pJoint);
+    else
+      joinSubbands8((int*) pSamples, pSBCData, &sampleData[0][0], pJoint);
+  } /* if joint */
+
+  /* write scale factors */
+  {
+    unsigned char c = 0;
+    int ch;
+
+    if (pSBCData->nrof_subbands == 4)
+    {
+      if (pSBCData->channel_mode == SBC_MODE_JOINT)
+      {
+        /* data pointer adjustment required due to just 4 join bits in header  */
+        for (ch = 2; ch > 0; ch--)
+        {
+          c = pSampleData[0].scale_factor;
+          pScaleFactors[-1] |= c;  /* write to output buffer */
+          c = pSampleData[1].scale_factor << 4;
+          c |= pSampleData[2].scale_factor;
+          pScaleFactors[0] = c;  /* write to output buffer */
+          c = pSampleData[3].scale_factor << 4;
+          pScaleFactors[1] = c;  /* write to output buffer */
+          pSampleData += 4;
+          pScaleFactors += 2;
+        }
+      }
+      else
+      {
+        for (ch = pSBCData->nrof_channels; ch > 0; ch--)
+        {
+          c = pSampleData[0].scale_factor << 4;
+          c |= pSampleData[1].scale_factor;
+          pScaleFactors[0] = c;  /* write to output buffer */
+          c = pSampleData[2].scale_factor << 4;
+          c |= pSampleData[3].scale_factor;
+          pScaleFactors[1] = c;  /* write to output buffer */
+          pSampleData += 4;
+          pScaleFactors += 2;
+        }
+      }
+    }
+    else
+    {
+      for (ch = pSBCData->nrof_channels; ch > 0; ch--)
+      {
+        c = pSampleData[0].scale_factor << 4;
+        c |= pSampleData[1].scale_factor;
+        pScaleFactors[0] = c;  /* write to output buffer */
+        c = pSampleData[2].scale_factor << 4;
+        c |= pSampleData[3].scale_factor;
+        pScaleFactors[1] = c;  /* write to output buffer */
+        c = pSampleData[4].scale_factor << 4;
+        c |= pSampleData[5].scale_factor;
+        pScaleFactors[2] = c;  /* write to output buffer */
+        c = pSampleData[6].scale_factor << 4;
+        c |= pSampleData[7].scale_factor;
+        pScaleFactors[3] = c;  /* write to output buffer */
+        pSampleData += 8;
+        pScaleFactors += 4;
+      }
+    } /* if subbands */
+    pSampleData = &sampleData[0][0];
+  } /* write scale factors */
+
+  /* create checksum */
+  createCRC(pOutputBuffer);
+
+  /* adjust sample data for computeBits function */
+  if (pSBCData->nrof_channels == 2)
+  {
+    if (pSBCData->nrof_subbands == 4)
+    {
+      /* move TSampleData structs into second row of sampleData array */
+      memcpy(&pSampleData[8], &pSampleData[4], 4 * sizeof(TSampleData));
+    }
+  }
+
+  /* calculate bit allocation */
+  computeBits();
+
+  /* re-adjust sample data */
+  if (pSBCData->nrof_channels == 2)
+  {
+    if (pSBCData->nrof_subbands == 4)
+    {
+      /* move TSampleData structs into one row within sampleData array */
+      memcpy(&pSampleData[4], &pSampleData[8], 4 * sizeof(TSampleData));
+    }
+  }
+  /* set terminator */
+  pSampleData[pSBCData->nrof_channels * pSBCData->nrof_subbands].bits = SBC_TERMINATOR;
+
+  /* quantize, normalize and write subband samples */
+  {
+    unsigned out = 0;
+    int resBits = 0;
+#if defined F_SBC_ENC_REUSE_INPUT_BUFFER
+    pSamples = (short*) pInputBuffer;  /* input buffer is storing the unquantized subband samples */
+#else
+    pSamples = &samples[0];
+#endif
+
+    if (pSBCData->nrof_subbands == 4)
+    {
+      if (pSBCData->channel_mode == SBC_MODE_JOINT)
+      {
+        /* data pointer adjustment required due to just 4 joint bits in header  */
+        pOut--;
+        resBits = 4;
+        out = (*pOut & 0xf0) >> 4;
+      }
+    }
+
+    /* precalculate fixed factors */
+    for (;;)
+    {
+      int bits;
+
+      if ((bits = (*pSampleData++).bits) != 0)
+      {
+        /* break on terminator */
+        if (bits < 0)  /* arm assembler optimization; saves 3 cycles compared to 'if (bits == SBC_TERMINATOR)' ! */
+          break;
+        pSampleData[-1].calc1 = ((1 << bits) - 1) << (GUARD_QUANT - 1);  /* levels including factor 1/2, guarded */
+        pSampleData[-1].calc2 = (pSampleData[-1].calc1) >> (pSampleData[-1].scale_factor + 1); /* levels/scale factors, guarded via calc1 */
+      }
+    }
+
+    /* quantize, normalize and write subband samples */
+    for (blk = pSBCData->nrof_blocks; blk > 0; blk--)
+    {
+      pSampleData = &sampleData[0][0];
+
+      for (;;)
+      {
+        int bits;
+
+        if ((bits = (*pSampleData++).bits) != 0)
+        {
+          int qs;
+          int msk;
+          /* break on terminator */
+          if (bits < 0)  /* arm assembler optimization; saves 3 cycles compared to 'if (bits == SBC_TERMINATOR)' ! */
+            break;
+          /* calculate subband sample */
+          qs = (*pSamples++ * pSampleData[-1].calc2 + pSampleData[-1].calc1) >> (GUARD_QUANT); /* un-guard (= round towards minus infinity) */
+          /* qs is a 32 bit integer holding the data to be written within the [bits] LSBs */                    
+
+#if defined F_SBC_ENC_USE_FLOAT
+          {
+            double should;
+            should = ((((double) pSamples[-1]) / (1 <<(pSampleData[-1].scale_factor + 1)) + 1) * ((1 << pSampleData[-1].bits) - 1.0) - 1.0) / 2.0;
+            if (should > 0)
+              should += 0.5;
+            else if (should < 0)
+              should -= 0.5;
+            qs = (int) should;
+          }
+#endif
+
+          msk = (1 << bits) - 1;
+          qs &= msk;
+#if defined F_SBC_DEBUG_FILE
+          pSampleData[-1].qs = qs;
+#endif
+          
+          /* write subband sample */
+          out <<= bits;
+          out |= qs;
+          resBits += bits;
+          while (resBits >= 8)
+          {
+            *pOut++ = (unsigned char) (out >> (resBits - 8));
+            resBits -= 8;
+          } /* while */
+        } /* if bits */
+        else
+        {
+#if defined F_SBC_DEBUG_FILE
+          pSampleData[-1].qs = 0;
+#endif
+          pSamples++;
+        }
+#if defined F_SBC_DEBUG_FILE
+        pSampleData[-1].sb_sample = *pSamples;
+#endif
+      } /* for */
+
+#if defined F_SBC_DEBUG_FILE
+      {
+        int sb, nsb;
+        TSampleData* pd;
+        nsb = pSBCData->nrof_subbands;
+        pd = &sampleData[0][0];
+        for (sb = 0; sb < nsb; sb++)
+        {
+          printf("%d, %d, %d, %u\n",
+            pd[sb].sb_sample, pd[sb].bits, pd[sb].scale_factor, pd[sb].qs);
+          printf("%d, %d, %d, %u\n",
+            pd[sb+nsb].sb_sample, pd[sb+nsb].bits, pd[sb+nsb].scale_factor, pd[sb+nsb].qs);
+        }  
+      }
+#endif
+
+    } /* for blk */
+
+    /* padding */
+    if (resBits > 0)
+    {
+      *pOut++ = (unsigned char) (out >> (8 - resBits));
+    }
+  }
+
+  *pOutputSize = pOut - pOutputBuffer;
+
+#if defined F_SBC_DEBUG_FILE
+  if (*pOutputSize != frameSize)
+    printf("! output size mismatch: frameSize %d, created %d\n", frameSize, *pOutputSize);
+  if ((unsigned char*) pIn - pInputBuffer != reqInSize)
+    printf("! input size mismatch: requested input %d, read %d\n", reqInSize, ((unsigned char*) pIn - pInputBuffer));
+#endif
+
+  return ((unsigned char*) pIn - pInputBuffer);
+}
+
+
+/***************************** initXTab ***********************************/
+/* initialize x array */
+/************************************************************************/
+static void initXTab(int* pTab)
+{
+  int i;
+  int* px   = pTab;
+  int* px1  = pTab + 99;
+
+  memset(px, 0, 198);
+  for (i = 0; i < 11; i++)
+  {
+    px [i * 9 + 8] = (int) &px [matrixingTable[i]]; /* set pointer to successor group, first channel */
+    px1[i * 9 + 8] = (int) &px1[matrixingTable[i]]; /* set pointer to successor group, second channel */
+  }
+} /* initXTab */
+
+
+/******************************** calcPartials4 *****************************/
+/*  */
+/************************************************************************/
+static void calcPartials4(int* pAudio, const int* pFactors, int channels, int* pMatrix)
+{
+  int y0, y1, y2, y3;
+  int iter = 2;
+  int* px = pAudio;
+  const int* pc = pFactors;
+  int* py = pMatrix;
+
+  while (--channels >= 0)
+  {
+    while (--iter >= 0)
+    {
+      y0 = y1 = y2 = y3 = GUARD_PAR_HALFBIT;
+
+      y0 += *pc++ * px[0];
+      y1 += *pc++ * px[1];
+      y2 += *pc++ * px[2];
+      y3 += *pc++ * px[3];
+      px = (int*) px[8];  /* jump to next group */
+
+      y0 += *pc++ * px[0];
+      y1 += *pc++ * px[1];
+      y2 += *pc++ * px[2];
+      y3 += *pc++ * px[3];
+      px = (int*) px[8];
+
+      y0 += *pc++ * px[0];
+      y1 += *pc++ * px[1];
+      y2 += *pc++ * px[2];
+      y3 += *pc++ * px[3];
+      px = (int*) px[8];
+
+      y0 += *pc++ * px[0];
+      y1 += *pc++ * px[1];
+      y2 += *pc++ * px[2];
+      y3 += *pc++ * px[3];
+      px = (int*) px[8];
+
+      y0 += *pc++ * px[0];
+      y1 += *pc++ * px[1];
+      y2 += *pc++ * px[2];
+      y3 += *pc++ * px[3];
+      px += 9;
+      px = (int*) px[8];
+
+      *py++ = y0 >> (GUARD_PAR);
+      *py++ = y1 >> (GUARD_PAR);
+      *py++ = y2 >> (GUARD_PAR);
+      *py++ = y3 >> (GUARD_PAR);
+
+    }  /* iter */
+    iter = 2;
+    pc -= 40;
+    px = pAudio + 99;
+  }  /* channels */
+} /* calcPartials4 */
+
+
+/********************* createSubbandSamples4 *****************************/
+/* */
+/************************************************************************/
+static void createSubbandSamples4(int* pMatrix, const int* pFactors, int channels, int* pSamples, TSampleData* pSampleData)
+{
+  int i, s;
+  int* py = pMatrix;
+  const int* pmik = pFactors;
+#if defined F_SBC_ENC_REUSE_INPUT_BUFFER
+  short* ps = (short*) pSamples;
+#else
+  int* ps = pSamples;
+#endif
+  TSampleData* pd = pSampleData;
+
+  while (--channels >= 0)
+  {
+    for (i = 0; i < 4; i++)
+    {
+      s = GUARD_SUB_HALFBIT;
+      s += *pmik++ * py[0];
+      s += *pmik++ * py[1];
+      s += *pmik++ * py[2];
+      s += *pmik++ * py[3];
+      s += *pmik++ * py[4];
+      s += *pmik++ * py[5];
+      s += *pmik++ * py[6];
+      s += *pmik++ * py[7];
+      s >>= (GUARD_SUB);
+      
+      /* save to sample buffer */
+#if defined F_SBC_ENC_REUSE_INPUT_BUFFER
+      limit(s);
+      *ps++ = (short) s;  /* save to sample buffer */
+#else
+      *ps++ = s;
+#endif
+
+      if (s > (*pd++).calc1)
+        pd[-1].calc1 = s;   /* save maximum */
+      else
+      {
+        if (s < pd[-1].calc2)
+          pd[-1].calc2 = s;   /* save minimum */
+      }
+    }
+
+    py += 8;
+    pmik -= 32;
+  } /* channels */
+} /* createSubbandSamples4 */
+
+
+/******************************** calcPartials8 *****************************/
+/*  */
+/************************************************************************/
+static void calcPartials8(int* pAudio, const int* pFactors, int channels, int* pMatrix)
+{
+  int y0, y1, y2, y3, y4, y5, y6, y7;
+  int iter = 2;
+  int* px = pAudio;
+  const int* pc = pFactors;
+  int* py = pMatrix;
+
+  while (--channels >= 0)
+  {
+    while (--iter >= 0)
+    {
+      y0 = y1 = y2 = y3 = y4 = y5 = y6 = y7 = GUARD_PAR_HALFBIT;
+
+      y0 += *pc++ * px[0];
+      y1 += *pc++ * px[1];
+      y2 += *pc++ * px[2];
+      y3 += *pc++ * px[3];
+      y4 += *pc++ * px[4];
+      y5 += *pc++ * px[5];
+      y6 += *pc++ * px[6];
+      y7 += *pc++ * px[7];
+      px = (int*) px[8];  /* jump to next group */
+
+      y0 += *pc++ * px[0];
+      y1 += *pc++ * px[1];
+      y2 += *pc++ * px[2];
+      y3 += *pc++ * px[3];
+      y4 += *pc++ * px[4];
+      y5 += *pc++ * px[5];
+      y6 += *pc++ * px[6];
+      y7 += *pc++ * px[7];
+      px = (int*) px[8];
+
+      y0 += *pc++ * px[0];
+      y1 += *pc++ * px[1];
+      y2 += *pc++ * px[2];
+      y3 += *pc++ * px[3];
+      y4 += *pc++ * px[4];
+      y5 += *pc++ * px[5];
+      y6 += *pc++ * px[6];
+      y7 += *pc++ * px[7];
+      px = (int*) px[8];
+
+      y0 += *pc++ * px[0];
+      y1 += *pc++ * px[1];
+      y2 += *pc++ * px[2];
+      y3 += *pc++ * px[3];
+      y4 += *pc++ * px[4];
+      y5 += *pc++ * px[5];
+      y6 += *pc++ * px[6];
+      y7 += *pc++ * px[7];
+      px = (int*) px[8];
+
+      y0 += *pc++ * px[0];
+      y1 += *pc++ * px[1];
+      y2 += *pc++ * px[2];
+      y3 += *pc++ * px[3];
+      y4 += *pc++ * px[4];
+      y5 += *pc++ * px[5];
+      y6 += *pc++ * px[6];
+      y7 += *pc++ * px[7];
+      px += 9;
+      px = (int*) px[8];
+
+      *py++ = y0 >> (GUARD_PAR);
+      *py++ = y1 >> (GUARD_PAR);
+      *py++ = y2 >> (GUARD_PAR);
+      *py++ = y3 >> (GUARD_PAR);
+      *py++ = y4 >> (GUARD_PAR);
+      *py++ = y5 >> (GUARD_PAR);
+      *py++ = y6 >> (GUARD_PAR);
+      *py++ = y7 >> (GUARD_PAR);
+
+    }  /* iter */
+    iter = 2;
+    pc -= 80;
+    px = pAudio + 99;
+  }  /* channels */
+} /* calcPartials8 */
+
+
+/********************* createSubbandSamples8 *****************************/
+/* */
+/************************************************************************/
+static void createSubbandSamples8(int* pMatrix, const int* pFactors, int channels, int* pSamples, TSampleData* pSampleData)
+{
+  int i, s;
+  int* py = pMatrix;
+  const int* pmik = pFactors;
+#if defined F_SBC_ENC_REUSE_INPUT_BUFFER
+  short* ps = (short*) pSamples;
+#else
+  int* ps = pSamples;
+#endif
+  TSampleData* pd = pSampleData;
+
+  while (--channels >= 0)
+  {
+    for (i = 0; i < 8; i++)
+    {
+      s = GUARD_SUB_HALFBIT;
+      s += *pmik++ * py[0];
+      s += *pmik++ * py[1];
+      s += *pmik++ * py[2];
+      s += *pmik++ * py[3];
+      s += *pmik++ * py[4];
+      s += *pmik++ * py[5];
+      s += *pmik++ * py[6];
+      s += *pmik++ * py[7];
+      s += *pmik++ * py[8];
+      s += *pmik++ * py[9];
+      s += *pmik++ * py[10];
+      s += *pmik++ * py[11];
+      s += *pmik++ * py[12];
+      s += *pmik++ * py[13];
+      s += *pmik++ * py[14];
+      s += *pmik++ * py[15];
+      s >>= (GUARD_SUB);
+
+      /* save to sample buffer */
+#if defined F_SBC_ENC_REUSE_INPUT_BUFFER
+      limit(s);
+      *ps++ = (short) s;  /* save to sample buffer */
+#else
+      *ps++ = s;
+#endif
+
+      if (s > (*pd++).calc1)
+        pd[-1].calc1 = s;   /* save maximum */
+      else
+      {
+        if (s < pd[-1].calc2)
+          pd[-1].calc2 = s;   /* save minimum */
+      }
+    }
+
+    py += 16;
+    pmik -= 128;
+  } /* channels */
+} /* createSubbandSamples8 */
+
+
+/*************************** joinSubbands4 *********************************/
+/* */
+/************************************************************************/
+static void joinSubbands4(int* pSamples, TSBCData* pSBCData, TSampleData* pSampleData, unsigned char* pJoint)
+{
+  int join = 0;
+  int jointSamples[32];
+  TSampleData jointData[8];
+  int sb, blk, blkR, iL, iR;
+#if defined F_SBC_ENC_REUSE_INPUT_BUFFER
+  short* ps = (short*) pSamples;
+#else
+  int* ps = pSamples;
+#endif
+
+  /* initialize joint data */
+  for (sb = 7; sb >= 0; sb--)
+    jointData[sb].calc1 = jointData[sb].calc2 = 0;
+
+  /* iterate through subbands; the highest subband is never joint */
+  for (sb = 2; sb >= 0; sb--)
+  {
+    int sbR, mx, sf, sumN, sumJ;
+    sbR = sb + 4;
+    iL = sb + ((pSBCData->nrof_blocks) << 3);
+    iR = iL + 4;
+    for (blk = pSBCData->nrof_blocks - 1; blk >= 0; blk--)
+    {
+      /* calculate sum and difference signals */
+      iL -= 8;
+      iR -= 8;
+      blkR = blk + pSBCData->nrof_blocks;
+      jointSamples[blk] = (ps[iL] + ps[iR]) >> 1;
+      jointSamples[blkR] = (ps[iL] - ps[iR]) >> 1;
+
+      /* sum (left) channel maximum */
+      if (jointSamples[blk] > jointData[sb].calc1)
+        jointData[sb].calc1 = jointSamples[blk];
+      else
+      {
+        /* sum (left) channel minimum */
+        if (jointSamples[blk] < jointData[sb].calc2)
+          jointData[sb].calc2 = jointSamples[blk];
+      }
+
+      /* difference (right) channel maximum */
+      if (jointSamples[blkR] > jointData[sbR].calc1)
+        jointData[sbR].calc1 = jointSamples[blkR];
+      else
+      {
+        /* difference (right) channel minimum */
+        if (jointSamples[blkR] < jointData[sbR].calc2)
+          jointData[sbR].calc2 = jointSamples[blkR];
+      }
+    } /* for blk */
+
+    /* calculate scale factors */
+    mx = jointData[sb].calc1;
+    jointData[sb].calc2 *= -1;
+    if (jointData[sb].calc2 > mx)
+      mx = jointData[sb].calc2;
+    if (mx > 255) if (mx > 4095) if (mx > 16383) if (mx > 32767) sf = 15; else sf = 14; else if (mx > 8191) sf = 13; else sf = 12;
+    else if (mx > 1023) if (mx > 2047) sf = 11; else sf = 10; else if (mx > 511) sf = 9; else sf = 8;
+    else if (mx > 15) if (mx > 63) if (mx > 127) sf = 7; else sf = 6; else if (mx > 31) sf = 5; else sf = 4;
+    else if (mx > 3) if (mx > 7) sf = 3; else sf = 2; else if (mx > 1) sf = 1; else sf = 0; 
+    jointData[sb].scale_factor = sf;
+
+    mx = jointData[sbR].calc1;
+    jointData[sbR].calc2 *= -1;
+    if (jointData[sbR].calc2 > mx)
+      mx = jointData[sbR].calc2;
+    if (mx > 255) if (mx > 4095) if (mx > 16383) if (mx > 32767) sf = 15; else sf = 14; else if (mx > 8191) sf = 13; else sf = 12;
+    else if (mx > 1023) if (mx > 2047) sf = 11; else sf = 10; else if (mx > 511) sf = 9; else sf = 8;
+    else if (mx > 15) if (mx > 63) if (mx > 127) sf = 7; else sf = 6; else if (mx > 31) sf = 5; else sf = 4;
+    else if (mx > 3) if (mx > 7) sf = 3; else sf = 2; else if (mx > 1) sf = 1; else sf = 0; 
+    jointData[sbR].scale_factor = sf;
+
+    /* make joint decision */
+    sumN = pSampleData[sb].scale_factor + pSampleData[sbR].scale_factor;
+    sumJ = jointData[sb].scale_factor + jointData[sbR].scale_factor;
+    if (sumJ < sumN)
+    {
+      /* add joint bit */
+      join |= (0x80 >> sb);
+
+      /* replace samples */
+      iL = sb + ((pSBCData->nrof_blocks) << 3);
+      iR = iL + 4;
+      for (blk = pSBCData->nrof_blocks - 1; blk >= 0; blk--)
+      {
+        iL -= 8;
+        iR -= 8;
+#if defined F_SBC_ENC_REUSE_INPUT_BUFFER
+        ps[iL] = (short) jointSamples[blk];
+        ps[iR] = (short) jointSamples[blk + pSBCData->nrof_blocks];
+#else
+        ps[iL] = jointSamples[blk];
+        ps[iR] = jointSamples[blk + pSBCData->nrof_blocks];
+#endif
+      } /* for blk */
+
+      /* replace scale factors */
+      pSampleData[sb].scale_factor = jointData[sb].scale_factor;
+      pSampleData[sbR].scale_factor = jointData[sbR].scale_factor;
+    } /* if join */
+  } /* for subband */
+
+  *pJoint = join;
+}
+
+
+/*************************** joinSubbands8 *********************************/
+/* */
+/************************************************************************/
+static void joinSubbands8(int* pSamples, TSBCData* pSBCData, TSampleData* pSampleData, unsigned char* pJoint)
+{
+  int join = 0;
+  int jointSamples[32];
+  TSampleData jointData[16];
+  int sb, blk, blkR, iL, iR;
+#if defined F_SBC_ENC_REUSE_INPUT_BUFFER
+  short* ps = (short*) pSamples;
+#else
+  int* ps = pSamples;
+#endif
+
+  /* initialize joint data */
+  for (sb = 15; sb >= 0; sb--)
+    jointData[sb].calc1 = jointData[sb].calc2 = 0;
+
+  /* iterate through subbands; the highest subband is never joint */
+  for (sb = 6; sb >= 0; sb--)
+  {
+    int sbR, mx, sf, sumN, sumJ;
+    sbR = sb + 8;
+    iL = sb + ((pSBCData->nrof_blocks) << 4);
+    iR = iL + 8;
+    for (blk = pSBCData->nrof_blocks - 1; blk >= 0; blk--)
+    {
+      /* calculate sum and difference signals */
+      iL -= 16;
+      iR -= 16;
+      blkR = blk + pSBCData->nrof_blocks;
+      jointSamples[blk] = (ps[iL] + ps[iR]) >> 1;
+      jointSamples[blkR] = (ps[iL] - ps[iR]) >> 1;
+
+      /* sum (left) channel maximum */
+      if (jointSamples[blk] > jointData[sb].calc1)
+        jointData[sb].calc1 = jointSamples[blk];
+      else
+      {
+        /* sum (left) channel minimum */
+        if (jointSamples[blk] < jointData[sb].calc2)
+          jointData[sb].calc2 = jointSamples[blk];
+      }
+
+      /* difference (right) channel maximum */
+      if (jointSamples[blkR] > jointData[sbR].calc1)
+        jointData[sbR].calc1 = jointSamples[blkR];
+      else
+      {
+        /* difference (right) channel minimum */
+        if (jointSamples[blkR] < jointData[sbR].calc2)
+          jointData[sbR].calc2 = jointSamples[blkR];
+      }
+    } /* for blk */
+
+    /* calculate scale factors */
+    mx = jointData[sb].calc1;
+    jointData[sb].calc2 *= -1;
+    if (jointData[sb].calc2 > mx)
+      mx = jointData[sb].calc2;
+    if (mx > 255) if (mx > 4095) if (mx > 16383) if (mx > 32767) sf = 15; else sf = 14; else if (mx > 8191) sf = 13; else sf = 12;
+    else if (mx > 1023) if (mx > 2047) sf = 11; else sf = 10; else if (mx > 511) sf = 9; else sf = 8;
+    else if (mx > 15) if (mx > 63) if (mx > 127) sf = 7; else sf = 6; else if (mx > 31) sf = 5; else sf = 4;
+    else if (mx > 3) if (mx > 7) sf = 3; else sf = 2; else if (mx > 1) sf = 1; else sf = 0; 
+    jointData[sb].scale_factor = sf;
+
+    mx = jointData[sbR].calc1;
+    jointData[sbR].calc2 *= -1;
+    if (jointData[sbR].calc2 > mx)
+      mx = jointData[sbR].calc2;
+    if (mx > 255) if (mx > 4095) if (mx > 16383) if (mx > 32767) sf = 15; else sf = 14; else if (mx > 8191) sf = 13; else sf = 12;
+    else if (mx > 1023) if (mx > 2047) sf = 11; else sf = 10; else if (mx > 511) sf = 9; else sf = 8;
+    else if (mx > 15) if (mx > 63) if (mx > 127) sf = 7; else sf = 6; else if (mx > 31) sf = 5; else sf = 4;
+    else if (mx > 3) if (mx > 7) sf = 3; else sf = 2; else if (mx > 1) sf = 1; else sf = 0; 
+    jointData[sbR].scale_factor = sf;
+
+    /* make joint decision */
+    sumN = pSampleData[sb].scale_factor + pSampleData[sbR].scale_factor;
+    sumJ = jointData[sb].scale_factor + jointData[sbR].scale_factor;
+    if (sumJ < sumN)
+    {
+      /* add join bit */
+      join |= (1 << (7 - sb));
+
+      /* replace samples */
+      iL = sb + ((pSBCData->nrof_blocks) << 4);
+      iR = iL + 8;
+      for (blk = pSBCData->nrof_blocks - 1; blk >= 0; blk--)
+      {
+        iL -= 16;
+        iR -= 16;
+#if defined F_SBC_ENC_REUSE_INPUT_BUFFER
+        ps[iL] = (short) jointSamples[blk];
+        ps[iR] = (short) jointSamples[blk + pSBCData->nrof_blocks];
+#else
+        ps[iL] = jointSamples[blk];
+        ps[iR] = jointSamples[blk + pSBCData->nrof_blocks];
+#endif
+      }
+
+      /* replace scale factors */
+      pSampleData[sb].scale_factor = jointData[sb].scale_factor;
+      pSampleData[sbR].scale_factor = jointData[sbR].scale_factor;
+    } /* if join */
+  } /* for subband */
+
+  *pJoint = join;
+}
+
+
+/******************************* createCRC *******************************/
+/* */
+/************************************************************************/
+static void createCRC(unsigned char* pOutput)
+{
+  int bits = 0;
+  unsigned char data[11];
+  TSBCData* pSBCData = &SBCData;
+  unsigned crc = 0x0f;
+  int i;
+  unsigned octet;
+  int len = 2;
+
+  /* copy relevant data to local array */
+  memcpy(data, pOutput + 1, len); /* first two bytes */
+  if (pSBCData->nrof_channels == 2)
+    len *= 2;
+  if (pSBCData->nrof_subbands == 8)
+    len *= 2;
+  if (pSBCData->channel_mode == SBC_MODE_JOINT)
+    len += 1;
+  memcpy(data + 2, pOutput + 4, len); /* joint and scale bytes */
+  bits = len * 8; /* joint and scale bits */
+  if (len == 5)
+    bits -= 4;  /* only 4 joint bits for 4 subbands */
+  bits += 16;  /* header bits */
+
+  for (i = 0; i < bits / 8; i++)
+    crc = crcTable[crc ^ data[i]];
+
+  octet = data[i];
+  for (i = 0; i < bits % 8; i++) 
+  {
+    char bit = ((octet ^ crc) & 0x80) >> 7;
+    crc = ((crc & 0x7f) << 1) ^ (bit ? 0x1d : 0);
+    octet = octet << 1;
+  }
+
+  pOutput[3] = (unsigned char) crc;
+}
+
+
+/*************************** computeBits *********************************/
+/* this implementation has been taken directly from the specification */
+/************************************************************************/
+static void computeBits(void)
+{
+  int loudness;
+  int max_bitneed = 0;
+  unsigned ch;
+  unsigned sb;
+  int bitneed[SBC_MAX_CHANNELS][SBC_MAX_SUBBANDS];
+  TSBCData* pSBCData= &SBCData;
+
+  if (pSBCData->channel_mode == SBC_MODE_MONO || pSBCData->channel_mode == SBC_MODE_DUAL)
+  {
+    for (ch=0; ch < pSBCData->nrof_channels; ch++)
+    {
+      /* Mono and Dual_Channel Bit Allocation */
+      if (pSBCData->allocation_method == SBC_ALLOCSNR)
+      {
+        for (sb = 0; sb < pSBCData->nrof_subbands; sb++)
+        {
+          int b = bitneed[ch][sb] = sampleData[ch][sb].scale_factor;
+          if (max_bitneed < b)
+            max_bitneed = b;
+        }
+      }
+      else
+      {
+        for (sb = 0;sb < pSBCData->nrof_subbands; sb++)
+        {
+          if (sampleData[ch][sb].scale_factor == 0)
+          {
+            int b = bitneed[ch][sb] = -5;
+            if (max_bitneed < b)
+              max_bitneed = b;
+          }
+          else
+          {
+            if (pSBCData->nrof_subbands == 4)
+            {
+              loudness = sampleData[ch][sb].scale_factor - offset4[pSBCData->sampling_frequency][sb];
+            }
+            else
+            {
+              loudness = sampleData[ch][sb].scale_factor - offset8[pSBCData->sampling_frequency][sb];
+            }
+            if (loudness > 0)
+            {
+              bitneed[ch][sb] = loudness / 2;
+              if (max_bitneed < loudness / 2)
+                max_bitneed = loudness / 2;
+
+            }
+            else
+            {
+              bitneed[ch][sb] = loudness;
+              if (max_bitneed < loudness)
+                max_bitneed = loudness;
+            }
+          }
+        }
+      }
+
+      /* Next an iterative process finds out how many bitslices fit into the bitpool */
+      {
+        int bitcount = 0;
+        int slicecount = 0;
+        int bitslice = max_bitneed + 1; /* init just above the largest sf */
+        do
+        {
+          bitslice--;
+          bitcount += slicecount;
+          slicecount = 0;
+          for (sb = 0;sb < pSBCData->nrof_subbands; sb++)
+          {
+            if((bitneed[ch][sb] > bitslice + 1) && (bitneed[ch][sb] < bitslice + 16))
+              slicecount++;
+            else if(bitneed[ch][sb] == bitslice + 1)
+              slicecount += 2;
+          }
+        } while (bitcount + slicecount < pSBCData->bitpool);
+
+        if (bitcount + slicecount == pSBCData->bitpool)
+        {
+          bitcount += slicecount;
+          bitslice--;
+        }
+
+        /* Thereafter, bits are distributed until the last bitslice is reached */
+        for (sb=0;sb<pSBCData->nrof_subbands;sb++)
+        {
+          if(bitneed[ch][sb]<bitslice+2)
+            sampleData[ch][sb].bits=0;
+          else
+            sampleData[ch][sb].bits=min(bitneed[ch][sb]-bitslice,16);
+        }
+
+        /* The remaining bits are allocated starting at subband 0 */
+        sb=0;
+        while(bitcount < pSBCData->bitpool && sb < pSBCData->nrof_subbands)
+        {
+          if((sampleData[ch][sb].bits>=2)&&(sampleData[ch][sb].bits<16))
+          {
+            sampleData[ch][sb].bits++; bitcount++;
+          }
+          else
+            if((bitneed[ch][sb]==bitslice+1)&&(pSBCData->bitpool>bitcount+1))
+            {
+              sampleData[ch][sb].bits=2; bitcount+=2;
+            }
+            sb++;
+        }
+        sb=0;
+        while(bitcount < pSBCData->bitpool && sb < pSBCData->nrof_subbands)
+        {
+          if (sampleData[ch][sb].bits < 16)
+          {
+            sampleData[ch][sb].bits++;
+            bitcount++;
+          }
+          sb++;
+        }
+      }
+    } /* for ch */
+  } /* MONO and DUAL */
+  else
+  {
+    /* Stereo and Joint_Stereo Bit Allocation */
+    if (pSBCData->allocation_method == SBC_ALLOCSNR)
+    {
+      for (ch = 0;ch < 2; ch++)
+      {
+        for (sb = 0; sb < pSBCData->nrof_subbands; sb++)
+        {
+          int b = bitneed[ch][sb] = sampleData[ch][sb].scale_factor;
+          if (b > max_bitneed)
+            max_bitneed = b;
+        }
+      }
+    }
+    else
+    {
+      for (ch = 0;ch < 2; ch++)
+      {
+        for (sb=0;sb<pSBCData->nrof_subbands;sb++)
+        {
+          if (sampleData[ch][sb].scale_factor == 0)
+          {
+            bitneed[ch][sb] = -5;
+            if (max_bitneed < -5)
+              max_bitneed = -5;
+          }
+          else
+          {
+            if (pSBCData->nrof_subbands == 4)
+            {
+              loudness = sampleData[ch][sb].scale_factor - offset4[pSBCData->sampling_frequency][sb];
+            }
+            else
+            {
+              loudness = sampleData[ch][sb].scale_factor - offset8[pSBCData->sampling_frequency][sb];
+            }
+            if (loudness > 0)
+            {
+              bitneed[ch][sb] = (loudness >> 1);
+              if ((loudness >> 1) > max_bitneed)
+                max_bitneed = (loudness >> 1);
+            }
+            else
+            {
+              bitneed[ch][sb] = loudness;
+              if (max_bitneed < loudness)
+                max_bitneed = loudness;
+            }
+          }
+        }
+      }
+    }    
+    /* Next an iterative process finds out how many bitslices fit into the bitpool */
+    computeSlicesInPoolStereo(max_bitneed, bitneed);
+  } /* Joint and Stereo Allocation */
+} /* computeBits */
+
+
+/*************************** computeSlicesInPoolStereo ******************/
+/* An iterative process finds out how many bitslices fit into the bitpool */
+/* The result is stored in the global array "bits" */
+/* this implementation has been taken directly from the specification */
+/************************************************************************/
+static void computeSlicesInPoolStereo( int max_bitneed, int bitneed[SBC_MAX_CHANNELS][SBC_MAX_SUBBANDS])
+{
+  static int n = 0;
+
+  int bitcount    = 0;
+  int slicecount  = 0;
+  int bitslice    = max_bitneed + 1; /* init just above the largest sf */
+  int sb, ch;
+  TSBCData* pSBCData= &SBCData;
+  int bitpool   = pSBCData->bitpool;
+  int nrof_subbands = pSBCData->nrof_subbands;
+
+  int* bn0 = bitneed[0];
+  int* bn1 = bitneed[1];
+
+  do
+  {
+    bitcount += slicecount;
+    slicecount = 0;
+
+    sb = nrof_subbands - 1;
+    do
+    {
+      int bitn;
+      /* channel 0 */
+      bitn = bn0[sb];
+      if((bitn >= bitslice) && (bitn < bitslice + 15))
+        slicecount++;
+      if(bitn == bitslice)
+        slicecount++;
+
+      /* channel 1 */
+      bitn = bn1[sb];
+      if((bitn >= bitslice) && (bitn < bitslice + 15))
+        slicecount++;
+      if(bitn == bitslice)
+        slicecount++;
+
+    } while (sb--);
+    bitslice--;
+  } while (bitcount + slicecount < bitpool);
+
+  if (bitcount + slicecount == bitpool)
+  {
+    bitcount += slicecount;
+    bitslice--;
+  }
+
+  /* Thereafter bits are distributed until the last bitslice is reached */
+  for (ch = 0; ch < 2; ch++)
+  {
+    for (sb=0;sb<nrof_subbands;sb++) 
+    {
+      if(bitneed[ch][sb] < bitslice + 2) 
+        sampleData[ch][sb].bits = 0; 
+      else 
+        sampleData[ch][sb].bits = min(bitneed[ch][sb] - bitslice, 16); 
+    }
+  }
+
+  /* The remaining bits are allocated starting with subband 0 of the first channel */
+  {
+    unsigned ch = 0;
+    sb=0;
+    while(bitcount < pSBCData->bitpool && sb < (int)pSBCData->nrof_subbands)
+    {
+      if((sampleData[ch][sb].bits>=2)&&(sampleData[ch][sb].bits<16))
+      {
+        sampleData[ch][sb].bits++; bitcount++;
+      }
+      else if((bitneed[ch][sb]==bitslice+1)&&(pSBCData->bitpool>bitcount+1))
+      {
+        sampleData[ch][sb].bits=2; bitcount+=2;
+      }
+      if (ch == 1)
+      {
+        ch = 0;
+        sb++;
+      }
+      else
+      {
+        ch = 1;
+      }
+    }
+    ch=0;
+    sb=0;
+    while(bitcount < pSBCData->bitpool && sb < (int)pSBCData->nrof_subbands)
+    {
+      if (sampleData[ch][sb].bits < 16)
+      {
+        sampleData[ch][sb].bits++;
+        bitcount++;
+      }
+      if (ch == 1)
+      {
+        ch = 0;
+        sb++;
+      }
+      else
+      {
+        ch = 1;
+      }
+    }
+  }
+}
+
+#if defined F_SBC_DEBUG_FILE
+/************************************************************************/
+/* various debug helper functions */
+/************************************************************************/
+static void dumpXTab(int* pTab)
+{
+  int i;
+  int* px = pTab;
+
+  printf("x dump\n");
+  for (i = 0; i < 180; i++)
+  {
+    if ((i % 9) == 8)
+      continue;
+    printf("x[%d] = val %4d\n", i,  px[i]);
+  }
+  printf("\n");
+}
+
+static void dumpYTab(int* pTab)
+{
+  int i;
+  int* py = pTab;
+
+  printf("y dump\n");
+  for (i = 0; i < 32; i++)
+    printf("value of y[%2d] = %6d\n", i, py[i]);
+  printf("\n");
+}
+
+static void dumpSampleData(TSampleData* pTab)
+{
+  int i;
+  TSampleData* pd = pTab;
+
+  printf("sample data dump\n");
+  for (i = 0; i < 16; i++)
+    printf("scale_factor[ ][ ] = %2d   bits[][] = %2d   max[][] = %2d\n", pd[i].scale_factor, pd[i].bits, pd[i].calc1);
+  printf("\n");
+}
+
+static void dumpInputBuffer(short* pBuffer, int index)
+{
+  int i;
+  short* pb = pBuffer;
+
+  printf("in buffer dump\n");
+  for (i = index; i < index + 16; i++)
+    printf("in[%2d] = %6d\n", i - index, pb[i]);
+  printf("\n");
+}
+#endif
+
+#endif /*F_BT_MPA_A2DP_SOURCE*/
diff --git a/rtkbt/addon/vr_bee2_hidraw_daemon/hidraw/voice_hidraw.c b/rtkbt/addon/vr_bee2_hidraw_daemon/hidraw/voice_hidraw.c
new file mode 100755
index 0000000..0a062e1
--- /dev/null
+++ b/rtkbt/addon/vr_bee2_hidraw_daemon/hidraw/voice_hidraw.c
@@ -0,0 +1,1140 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdint.h>
+#include <dirent.h>
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#include <sys/inotify.h>
+#include <sys/poll.h>
+#include <linux/input.h>
+#include <linux/hidraw.h>
+#include <errno.h>
+#include <time.h>
+#include <unistd.h>
+
+#include <pthread.h>
+
+
+#include "voice_hidraw.h"
+#include "bee_settings.h"
+#include "get_voice_app.h"
+#include "sbc.h"
+#include "voice_uipc.h"
+#include "config.h"
+
+#define RAW_DATA_PATH "/data/vr/raw_data"
+static int file_counter = 0;
+int raw_fd;
+int gSocket_Running = 0;
+int gTarget_fd = 0;
+
+
+
+typedef struct {
+    int vid;
+    int pid;
+    int vers;
+    unsigned char voice_key_reportID;
+    unsigned char voice_data_reportID;
+    unsigned char voice_cmd_reportID;
+    int voice_keypress_data_len;
+    unsigned char *voice_keypress_data;
+    int voice_keyrelease_data_len;
+    unsigned char *voice_keyrelease_data;
+    int decode_type;
+    int data_mask;
+    int autocmd;
+    
+}VOICE_SETTING;
+
+static struct pollfd *ufds;
+static char **device_names;
+static int nfds;
+
+static int *unused_bt_hid_fds;
+static int nunusedfds;
+static char **unused_device_names;
+
+
+VOICE_SETTING global_voice_setting;
+pthread_mutex_t mutex_voice_settings;
+
+int frame_counter = 0;
+
+int set_rcu_info(int vid, int pid, int vers) {
+    pthread_mutex_lock(&mutex_voice_settings);
+    if(vid != -1)
+        global_voice_setting.vid = vid;
+
+    if(pid != -1)
+        global_voice_setting.pid = pid;
+
+    if(vers != -1)
+        global_voice_setting.vers = vers;
+
+    pthread_mutex_unlock(&mutex_voice_settings);
+
+    return 0;
+}
+
+int set_voice_data_reportID(unsigned char reportID) {
+    pthread_mutex_lock(&mutex_voice_settings);
+    global_voice_setting.voice_data_reportID = reportID;
+    pthread_mutex_unlock(&mutex_voice_settings);
+    return 0;
+}
+
+int set_voice_cmd_reportID(unsigned char reportID) {
+    pthread_mutex_lock(&mutex_voice_settings);
+    global_voice_setting.voice_cmd_reportID = reportID;
+    pthread_mutex_unlock(&mutex_voice_settings);
+    return 0;
+}
+
+int set_voice_key_reportID(unsigned char reportID) {
+    pthread_mutex_lock(&mutex_voice_settings);
+    global_voice_setting.voice_key_reportID = reportID;
+    pthread_mutex_unlock(&mutex_voice_settings);
+    return 0;
+}
+
+int set_voice_keypress_data(int len, unsigned char *data) {
+    if(len > 0) {
+        pthread_mutex_lock(&mutex_voice_settings);
+        if(global_voice_setting.voice_keypress_data != NULL) {
+            if(global_voice_setting.voice_keypress_data_len < len) {
+
+                unsigned char *buf = (unsigned char *)realloc(global_voice_setting.voice_keypress_data, len);
+                if(buf == NULL) {
+                    //log
+                    pthread_mutex_unlock(&mutex_voice_settings);
+                    error("Failed to realloc for voice_keypress_data");
+                    return -1;
+                }else {
+                    global_voice_setting.voice_keypress_data = buf;
+                }
+            }
+        }else {
+            global_voice_setting.voice_keypress_data = (unsigned char *)malloc(len);
+            if(global_voice_setting.voice_keypress_data == NULL) {
+                //log
+                pthread_mutex_unlock(&mutex_voice_settings);
+                error("Failed to malloc for voice_keypress_data");
+                return -2;
+            }
+        }
+
+        memcpy(global_voice_setting.voice_keypress_data, data, len);
+        global_voice_setting.voice_keypress_data_len = len;
+        pthread_mutex_unlock(&mutex_voice_settings);
+        return 0;
+    }else {
+        warn("len is negative for voice_keypress_data");
+        return -3;
+    }
+}
+
+int set_voice_keyrelease_data(int len, unsigned char *data) {
+    if(len > 0) {
+        pthread_mutex_lock(&mutex_voice_settings);
+        if(global_voice_setting.voice_keyrelease_data != NULL) {
+            if(global_voice_setting.voice_keyrelease_data_len < len) {
+                unsigned char *buf = (unsigned char *)realloc(global_voice_setting.voice_keyrelease_data, len);
+                if(buf == NULL) {
+                    //log
+                    pthread_mutex_unlock(&mutex_voice_settings);
+                    error("Failed to realloc for voice_keypress_data");
+                    return -1;
+                }else {
+                    global_voice_setting.voice_keyrelease_data = buf;
+                }
+            }
+        }else {
+            global_voice_setting.voice_keyrelease_data = (unsigned char *)malloc(len);
+            if(global_voice_setting.voice_keyrelease_data == NULL) {
+                pthread_mutex_unlock(&mutex_voice_settings);
+                error("Failed to malloc for voice_keyrelease_data");
+                return -2;
+            }
+        }
+
+        memcpy(global_voice_setting.voice_keyrelease_data, data, len);
+        global_voice_setting.voice_keyrelease_data_len = len;
+        pthread_mutex_unlock(&mutex_voice_settings);
+        return 0;
+    }else {
+        //log
+        warn("len is negative for voice_keyrelease_data");
+        return -3;
+    }
+}
+
+int set_encode_type(int type) {
+    if(type <= DECODE_TYPE_MAX) {
+        pthread_mutex_lock(&mutex_voice_settings);
+        global_voice_setting.decode_type = type;
+        pthread_mutex_unlock(&mutex_voice_settings);
+        return 0;
+    }else {
+        warn("Unknown Decode Type !!!");
+        return -1;
+    }
+}
+
+int data_type_mask(int mask) {
+    //log
+    debug("Set Data Type Mask 0x%04x", mask);
+
+    pthread_mutex_lock(&mutex_voice_settings);
+    
+    if(mask & DATA_TYPE_MASK_RAW) {
+        global_voice_setting.data_mask = DATA_TYPE_MASK_RAW;
+    }else {
+        if(mask & DATA_TYPE_MASK_VOICE) {
+            global_voice_setting.data_mask |= DATA_TYPE_MASK_VOICE;
+        }
+    }
+
+    pthread_mutex_unlock(&mutex_voice_settings);
+    return 0;
+}
+
+int set_auto_cmd(int autocmd) {
+    pthread_mutex_lock(&mutex_voice_settings);
+    if(autocmd == 1) {
+        global_voice_setting.autocmd = AUTOCMD_AUTO;
+    }else if(autocmd == 2){
+        global_voice_setting.autocmd = AUTOCMD_NONE;
+    }
+    pthread_mutex_unlock(&mutex_voice_settings);
+
+    return 0;
+}
+
+
+
+int voice_msbc_init() {
+
+    int ivalue, i;
+   
+    voice_loadconfig(CONFIG_PATH);
+
+    pthread_mutex_lock(&mutex_voice_settings);
+    
+    memset(&global_voice_setting, 0, sizeof(global_voice_setting));
+
+    ivalue = voice_get_int_config(CONFIG_GROUP_RCU, CONFIG_ITEM_RCU_VID);
+    if(ivalue >= 0) {
+        global_voice_setting.vid = ivalue;
+        ALOGD("use config VID: %04x", global_voice_setting.vid);
+    } else {
+        global_voice_setting.vid = BEE_RCU_VID;
+        ALOGD("use default VID: %04x", global_voice_setting.vid);
+    }
+
+    ivalue = voice_get_int_config(CONFIG_GROUP_RCU, CONFIG_ITEM_RCU_PID);
+    if(ivalue >= 0) {
+        global_voice_setting.pid = ivalue;
+        ALOGD("use config PID: %04x", global_voice_setting.pid);
+    } else {
+        global_voice_setting.pid = BEE_RCU_PID;
+        ALOGD("use default PID: %04x", global_voice_setting.pid);
+    }
+
+    ivalue = voice_get_int_config(CONFIG_GROUP_RCU, CONFIG_ITEM_RCU_VER);
+    if(ivalue >= 0) {
+        global_voice_setting.vers = ivalue;
+        ALOGD("use config version: %04x", global_voice_setting.vers);
+    } else {
+        global_voice_setting.vers = BEE_RCU_VERSION;
+        ALOGD("use default VERSION: %04x", global_voice_setting.vers);
+    }
+
+    ivalue = voice_get_int_config(CONFIG_GROUP_REPORTID, CONFIG_ITEM_REPORTID_KEY);
+    if(ivalue > 0) {
+        global_voice_setting.voice_key_reportID = ivalue & 0xff;
+        ALOGD("use config key report id: %02x", global_voice_setting.voice_key_reportID);
+    } else {
+        global_voice_setting.voice_key_reportID = BEE_VOICEKEY_REPORTID;
+        ALOGD("use default key report id: %02x", global_voice_setting.voice_key_reportID);
+    }
+    
+
+    ivalue = voice_get_int_config(CONFIG_GROUP_REPORTID, CONFIG_ITEM_REPORTID_DATA);
+    if(ivalue > 0) {
+        global_voice_setting.voice_data_reportID = ivalue & 0xff;
+        ALOGD("use config data report id: %02x", global_voice_setting.voice_data_reportID);
+    } else {
+        global_voice_setting.voice_data_reportID = BEE_MSBC_VOICEDATA_REPORTID;
+        ALOGD("use default data report id: %02x", global_voice_setting.voice_data_reportID);
+    }
+
+    ivalue = voice_get_int_config(CONFIG_GROUP_REPORTID, CONFIG_ITEM_REPORTID_CMD);
+    if(ivalue > 0) {
+        global_voice_setting.voice_cmd_reportID = ivalue & 0xff;
+        ALOGD("use config cmd report id: %02x", global_voice_setting.voice_cmd_reportID);
+    } else {
+        global_voice_setting.voice_cmd_reportID = BEE_MSBC_VOICECMD_REPORTID;
+        ALOGD("use default cmd report id: %02x", global_voice_setting.voice_cmd_reportID);
+    }
+
+    ivalue = voice_get_int_config(CONFIG_GROUP_REPORTVALUE, CONFIG_ITEM_REPORTVALUE_KEYDOWNLEN);
+    if(ivalue > 0) {
+        global_voice_setting.voice_keypress_data_len = ivalue;
+        ALOGD("use config keydown len: %d", global_voice_setting.voice_keypress_data_len);
+    } else {
+        global_voice_setting.voice_keypress_data_len = BEE_VOICEKEY_LEN;
+        ALOGD("use default keydown len: %d", global_voice_setting.voice_keypress_data_len);
+    }
+
+    global_voice_setting.voice_keypress_data = (unsigned char *)malloc(global_voice_setting.voice_keypress_data_len);
+    if(global_voice_setting.voice_keypress_data == NULL) {
+        //log
+        error("failed to get buf for keydown");
+        pthread_mutex_unlock(&mutex_voice_settings);
+        return -1;
+    }else {
+        if(ivalue > 0) {
+            if(voice_get_byte_array_config(CONFIG_GROUP_REPORTVALUE, CONFIG_ITEM_REPORTVALUE_KEYDOWN,
+                global_voice_setting.voice_keypress_data, global_voice_setting.voice_keypress_data_len)
+                != global_voice_setting.voice_keypress_data_len) {
+                
+                global_voice_setting.voice_keypress_data_len = BEE_VOICEKEY_LEN;
+                if(ivalue < BEE_VOICEKEY_LEN) {
+                    global_voice_setting.voice_keypress_data = (unsigned char *)realloc(global_voice_setting.voice_keypress_data, BEE_VOICEKEY_LEN);
+                    if(global_voice_setting.voice_keypress_data == NULL) {
+                        error("failed to realloc buf for keydown");
+                        pthread_mutex_unlock(&mutex_voice_settings);
+                        return -1;
+                    }
+                }
+                memcpy(global_voice_setting.voice_keypress_data, BEE_VOICE_KEYDOWN_DATA, global_voice_setting.voice_keypress_data_len);
+                ALOGD("use default keydown data");
+            }
+        }else {
+            memcpy(global_voice_setting.voice_keypress_data, BEE_VOICE_KEYDOWN_DATA, global_voice_setting.voice_keypress_data_len);
+            ALOGD("use default keydown data");
+        }
+        ALOGD("key down data:");
+        for(i = 0; i < global_voice_setting.voice_keypress_data_len; i++) {
+            ALOGD("data[%d] = %02x", i, *(global_voice_setting.voice_keypress_data + i));
+        }
+    }
+
+    ivalue = voice_get_int_config(CONFIG_GROUP_REPORTVALUE, CONFIG_ITEM_REPORTVALUE_KEYUPLEN);
+    if(ivalue > 0) {
+        global_voice_setting.voice_keyrelease_data_len = ivalue;
+        ALOGD("use config keyup len: %d", global_voice_setting.voice_keyrelease_data_len);
+    } else {
+        global_voice_setting.voice_keyrelease_data_len = BEE_VOICEKEY_LEN;
+        ALOGD("use default keyup len: %d", global_voice_setting.voice_keyrelease_data_len);
+    }
+
+    global_voice_setting.voice_keyrelease_data = (unsigned char *)malloc(global_voice_setting.voice_keyrelease_data_len);
+    if(global_voice_setting.voice_keyrelease_data == NULL) {
+        //log
+        error("failed to get buf for keyup");
+        pthread_mutex_unlock(&mutex_voice_settings);
+        return -1;
+    }else {
+        if(ivalue > 0) {
+            if(voice_get_byte_array_config(CONFIG_GROUP_REPORTVALUE, CONFIG_ITEM_REPORTVALUE_KEYUP,
+                global_voice_setting.voice_keyrelease_data, global_voice_setting.voice_keyrelease_data_len)
+                != global_voice_setting.voice_keyrelease_data_len) {
+                
+                global_voice_setting.voice_keyrelease_data_len = BEE_VOICEKEY_LEN;
+                if(ivalue < BEE_VOICEKEY_LEN) {
+                    global_voice_setting.voice_keyrelease_data = (unsigned char *)realloc(global_voice_setting.voice_keyrelease_data, BEE_VOICEKEY_LEN);
+                    if(global_voice_setting.voice_keyrelease_data == NULL) {
+                        error("failed to realloc buf for keyup");
+                        pthread_mutex_unlock(&mutex_voice_settings);
+                        return -1;
+                    }
+                }
+                memcpy(global_voice_setting.voice_keyrelease_data, BEE_VOICE_KEYUP_DATA, global_voice_setting.voice_keyrelease_data_len);
+                ALOGD("use default keyup data");
+            }
+        }else {
+            memcpy(global_voice_setting.voice_keyrelease_data, BEE_VOICE_KEYUP_DATA, global_voice_setting.voice_keyrelease_data_len);
+            ALOGD("use default keyup data");
+        }
+        ALOGD("key up data:");
+        for(i = 0; i < global_voice_setting.voice_keyrelease_data_len; i++) {
+            ALOGD("data[%d] = %02x", i, *(global_voice_setting.voice_keyrelease_data + i));
+        }
+    }
+
+    ivalue = voice_get_int_config(CONFIG_GROUP_SETTINGS, CONFIG_ITEM_SETTINGS_DECODETYPE);
+    if(ivalue > 0) {
+        global_voice_setting.decode_type = ivalue;
+        ALOGD("use config decode type: %d", global_voice_setting.decode_type);
+    } else {
+        global_voice_setting.decode_type = DECODE_TYPE_MSBC;
+        ALOGD("use default decode type: %d", global_voice_setting.decode_type);
+    }
+
+    ivalue = voice_get_int_config(CONFIG_GROUP_SETTINGS, CONFIG_ITEM_SETTINGS_DATAMASK);
+    if(ivalue > 0) {
+        global_voice_setting.data_mask = ivalue;
+        ALOGD("use config data mask: %d", global_voice_setting.data_mask);
+    } else {
+        global_voice_setting.data_mask = DATA_TYPE_MASK_VOICE;
+        ALOGD("use default decode type: %d", global_voice_setting.data_mask);
+    }
+
+    ivalue = voice_get_int_config(CONFIG_GROUP_SETTINGS, CONFIG_ITEM_SETTINGS_AUTOCMD);
+    if(ivalue > 0) {
+        global_voice_setting.autocmd = ivalue;
+        ALOGD("use config decode type: %d", global_voice_setting.autocmd);
+    } else {
+        global_voice_setting.autocmd = AUTOCMD_AUTO;
+        ALOGD("use default decode type: %d", global_voice_setting.autocmd);
+    }
+
+    pthread_mutex_unlock(&mutex_voice_settings);
+    voice_conf_exit();
+    return 0;
+}
+
+void voice_open_store_file()
+{
+    char record_name[50] = {0}; 
+    sprintf(record_name, "%s%d", RAW_DATA_PATH, file_counter);
+
+    raw_fd =  open (record_name, O_WRONLY | O_CREAT |O_TRUNC, 0644);
+
+    if(raw_fd < 0)
+    {
+        ALOGE("can't open record file:%s ", record_name);
+    }
+
+
+	return;
+}
+
+int voice_write_decode_buf(uint8* pu_decode, ssize_t len)
+{
+    if (raw_fd > 0)
+    {
+        write (raw_fd, pu_decode, len);
+        return 0;
+    }
+    return -1;
+}
+
+
+/**********************************************
+*
+*   hidraw node related
+*
+***********************************************/
+const char *bus_str(int bus){
+    switch (bus) {
+        case BUS_USB:
+            return "USB";
+            
+        case BUS_HIL:
+            return "HIL";
+            
+        case BUS_BLUETOOTH:
+            return "Bluetooth";
+
+        case BUS_VIRTUAL:
+            return "Virtual";
+                
+        default:
+            return "Other";
+    }
+}
+    
+static int get_hidraw_info(int fd)
+{
+    int i, res, desc_size = 0;
+    char buf[256];
+    struct hidraw_report_descriptor rpt_desc;
+    struct hidraw_devinfo info;
+    
+    memset(&rpt_desc, 0x0, sizeof(rpt_desc));
+    memset(&info, 0x0, sizeof(info));
+    memset(buf, 0x0, sizeof(buf));
+    debug("-----------------------------------------------\n");
+    
+    /* Get Raw Name */
+    res = ioctl(fd, HIDIOCGRAWNAME(256), buf);
+    if (res < 0)
+        perror("HIDIOCGRAWNAME");
+    else
+        debug("Raw Name: %s\n", buf);
+    /* Get Physical Location */
+    res = ioctl(fd, HIDIOCGRAWPHYS(256), buf);
+    if (res < 0)
+        perror("HIDIOCGRAWPHYS");
+    else
+        debug("Raw Phys: %s\n", buf);
+    /* Get Raw Info */
+    res = ioctl(fd, HIDIOCGRAWINFO, &info);
+    if (res < 0) {
+        perror("HIDIOCGRAWINFO");
+    } else {
+        debug("Raw Info:");
+        debug(" bustype: %d (%s)", info.bustype, bus_str(info.bustype));
+        debug(" vendor: 0x%04x", info.vendor);
+        debug(" product: 0x%04x\n", info.product);
+    }
+    /* Get Report Descriptor Size */
+    res = ioctl(fd, HIDIOCGRDESCSIZE, &desc_size);
+    if (res < 0)
+       perror("HIDIOCGRDESCSIZE");
+    else
+        debug("Report Descriptor Size: %d\n", desc_size);
+    /* Get Report Descriptor */
+    rpt_desc.size = desc_size;
+    res = ioctl(fd, HIDIOCGRDESC, &rpt_desc);
+    if (res < 0) {
+        perror("HIDIOCGRDESC");
+    } else {
+        debug("Report Descriptor:");
+        for (i = 0; i < rpt_desc.size; i++)
+        {
+            if((i%16)==0)
+                debug("\n");
+            debug("%02x ", rpt_desc.value[i]);
+        }
+        debug("\n");
+    }
+    info("-----------------------------------------------\n");
+    
+    return 0;
+}
+
+static int send_message(int fd, unsigned char * buf, int len)
+{
+    int res = 0;
+    res = write(fd, buf, len);
+    debug("send_message res=%d\n",res);
+    return res;
+}
+
+static void process_voice_data(unsigned char reportID, unsigned char *buf, int len) {
+    int ret = -1;
+    int offset = 0;
+    int i;
+    int decode_len = 0;
+
+    unsigned char output_buf[1024] = {0x00};
+
+    //debug("reportID=%d, decode_type=%d, global_reportID=%d, len=%d", 
+        //reportID, global_voice_setting.decode_type, global_voice_setting.voice_data_reportID, len);
+
+    if(global_voice_setting.decode_type == DECODE_TYPE_MSBC) {
+        while(offset + BEE_MSBC_FRAME_SIZE <= len) {
+            //debug("offset is %d now, len is %d", offset, len);
+            ret = RS_deal_voice_stream_data(buf + offset, BEE_MSBC_FRAME_SIZE, output_buf, 1024, &decode_len);
+            if(ret < 0) {
+                offset++;
+            }else {
+                UIPC_Send_noblock(UIPC_CH_ID_VOICE_DATA, 0, output_buf, decode_len);
+                offset += BEE_MSBC_FRAME_SIZE;
+            }
+        }
+    }else if(global_voice_setting.decode_type == DECODE_TYPE_SBC) {
+        decode_len = 1024;
+        while(offset + BEE_SBC_FRAME_SIZE <= len) {
+            ret = sbcDecode(buf + offset, BEE_SBC_FRAME_SIZE, output_buf, &decode_len);
+            if(ret < 0) {
+                debug("fail to decode: %d", ret);
+                offset++;
+            }else {
+                UIPC_Send_noblock(UIPC_CH_ID_VOICE_DATA, 0, output_buf, decode_len);
+                offset += BEE_SBC_FRAME_SIZE;
+            }
+        }
+    }
+}
+
+static int read_message(int fd)
+{
+    unsigned char buf[4096];
+    int res,i;
+
+    unsigned char start_rec_command[] = {global_voice_setting.voice_cmd_reportID, 0x01};
+    unsigned char stop_rec_command[] = {global_voice_setting.voice_cmd_reportID, 0x00};
+    static int voice_kpressed = 0;
+
+/*
+    struct hidraw_devinfo info;
+ 
+    res = ioctl(fd, HIDIOCGRAWINFO, &info);
+    if (res < 0) {
+        perror("HIDIOCGRAWINFO");
+    }
+*/
+
+    //if( (info.vendor==global_voice_setting.vid) && (info.product==global_voice_setting.pid) )
+    //{
+        res = read(fd, buf, sizeof(buf));
+        debug("read buffer res: %04x", res);
+        if(res > 0)
+        {
+            //debug("Receive From :%04x,%04x number: %d", info.vendor, info.product, res);
+            if( (global_voice_setting.data_mask & DATA_TYPE_MASK_RAW) == DATA_TYPE_MASK_RAW) {
+                //just callback and return
+                UIPC_Send_noblock(UIPC_CH_ID_VOICE_DATA, 0, buf + 1, res - 1);
+                return 0;
+            }else if( (global_voice_setting.data_mask & DATA_TYPE_MASK_VOICE) == DATA_TYPE_MASK_VOICE) {
+
+                if((voice_kpressed == 0) && (buf[0] == global_voice_setting.voice_key_reportID) && 
+                    (res == global_voice_setting.voice_keypress_data_len + 1) && 
+                    (memcmp(buf + 1, global_voice_setting.voice_keypress_data, global_voice_setting.voice_keypress_data_len) == 0))
+                {
+                    //debug("voice key pressed");
+                    if(global_voice_setting.autocmd == AUTOCMD_AUTO) {
+                        RS_voice_app_create_output();
+                        RS_voice_app_create_origin_output();
+                        voice_open_store_file();
+
+                        //send_message(fd, start_rec_command,sizeof(start_rec_command));
+                        voice_kpressed = 1;
+                        frame_counter = 0;
+                    }
+                    return 0;
+                }
+
+                // when voice key is released
+                if ((voice_kpressed == 1) && (buf[0] == global_voice_setting.voice_key_reportID) && 
+                    (res == global_voice_setting.voice_keyrelease_data_len + 1) && 
+                    (memcmp(buf + 1, global_voice_setting.voice_keyrelease_data, global_voice_setting.voice_keyrelease_data_len) == 0))
+                {
+                    //debug("voice key relesed");
+
+                    if(global_voice_setting.autocmd == AUTOCMD_AUTO) {
+                        RS_stop_voice_stream_data();
+                        //send_message(fd, stop_rec_command,sizeof(stop_rec_command));
+                        voice_kpressed = 0;
+                        debug("total frame: %d", frame_counter);
+                        close(raw_fd);
+                        file_counter++;
+                        raw_fd = -1;
+                    }
+                    return 0;
+                }
+
+                // store voice data
+                if ((voice_kpressed == 1 ) && (buf[0] == global_voice_setting.voice_data_reportID))
+                {
+                    //debug("deal with voice data");
+                    process_voice_data(buf[0], buf + 1, res-1);
+                    voice_write_decode_buf(buf + 1, res - 1);
+                    frame_counter++;
+                    return 0;
+                }
+            }
+        }else {
+            warn("Read fd %d failed: %s", fd, strerror(errno));
+            return -1;
+        }
+
+    //}
+
+    return 0;
+}
+
+int get_dev_vid_pid_info(int fd, short* vid, short* pid) {
+    int res = -1;
+    struct hidraw_devinfo info;
+
+    memset(&info, 0x0, sizeof(info));
+
+    res = ioctl(fd, HIDIOCGRAWINFO, &info);
+    if (res < 0) {
+        debug("failed to get HIDIOCGRAWINFO");
+    } else {
+        //debug("Raw Info:");
+        //debug(" bustype: %d (%s)", info.bustype, bus_str(info.bustype));
+        debug(" vendor: 0x%04x, product: 0x%04x", info.vendor, info.product);
+        *vid = info.vendor;
+        *pid = info.product;
+        res = 1;
+    }
+    return res;
+}
+
+static int open_device(const char *device)
+{
+    int version;
+    int fd;
+    int clkid = CLOCK_MONOTONIC;
+    struct pollfd *new_ufds;
+    int *unfds;
+    char **new_device_names;
+    char **new_unused_device_names;
+    char name[80];
+    char location[80];
+    char idstr[80];
+    struct input_id id;
+    int res = -1;
+    struct hidraw_devinfo info;
+
+    fd = open(device, O_RDWR);
+    if(fd < 0) {
+        debug("could not open %s, %s\n", device, strerror(errno));
+        return -1;
+    }
+    debug("new fd is %d", fd);
+
+    res = ioctl(fd, HIDIOCGRAWINFO, &info);
+    if(res < 0) {
+        debug("failed to get hidraw_devinfo, add for now");
+    }else if(info.bustype != BUS_BLUETOOTH){
+        debug("ingore this device");
+        close(fd);
+        return -1;
+    }else if((info.vendor != global_voice_setting.vid) || (info.product != global_voice_setting.pid)) {
+        //res = unlink(fd);
+        debug("Not the device we care, add to unused fds");
+        unfds = realloc(unused_bt_hid_fds, sizeof(unused_bt_hid_fds[0]) * (nunusedfds + 1));
+        if(unfds == NULL) {
+            error("unused fds: out of memory");
+            return -1;
+        }
+
+        new_unused_device_names = realloc(unused_device_names, sizeof(unused_device_names[0]) * (nunusedfds + 1));
+        if(new_unused_device_names == NULL) {
+            error("unused device_names: out of memory");
+            return -1;
+        }
+
+        unused_bt_hid_fds = unfds;
+        unused_device_names = new_unused_device_names;
+        
+        unused_bt_hid_fds[nunusedfds] = fd;
+        unused_device_names[nunusedfds] = strdup(device);
+        nunusedfds++;
+        return 0; 
+    }
+
+    new_ufds = realloc(ufds, sizeof(ufds[0]) * (nfds + 1));
+    if(new_ufds == NULL) {
+        error("out of memory\n");
+        return -1;
+    }
+
+    ufds = new_ufds;
+    new_device_names = realloc(device_names, sizeof(device_names[0]) * (nfds + 1));
+    if(new_device_names == NULL) {
+        debug("out of memory\n");
+        return -1;
+    }
+    device_names = new_device_names;
+    //get_hidraw_info(fd);
+    ufds[nfds].fd = fd;
+    ufds[nfds].events = POLLIN;
+    device_names[nfds] = strdup(device);
+    nfds++;
+
+    return 0;
+}
+
+int close_device(const char *device)
+{
+    int i;
+    for(i = 1; i < nfds; i++) {
+        if(strcmp(device_names[i], device) == 0) {
+            int count = nfds - i - 1;
+            debug("remove device %d: %s\n", i, device);
+            free(device_names[i]);
+            memmove(device_names + i, device_names + i + 1, sizeof(device_names[0]) * count);
+            close(ufds[i].fd);
+            memmove(ufds + i, ufds + i + 1, sizeof(ufds[0]) * count);
+            nfds--;
+            return 0;
+        }
+    }
+
+    for(i = 0; i < nunusedfds; i++) {
+        if(strcmp(unused_device_names[i], device) == 0) {
+            int count = nunusedfds - i;
+            debug("remove unused device %d: %s\n", i, device);
+            free(unused_device_names[i]);
+            memmove(unused_device_names + i, unused_device_names + i + 1, sizeof(unused_device_names[0]) * count);
+            close(unused_bt_hid_fds[i]);
+            memmove(unused_bt_hid_fds + i, unused_bt_hid_fds + i + 1, sizeof(unused_bt_hid_fds[0]) * count);
+            nunusedfds--;
+            return 0;
+        }
+    }
+    
+    error("remote device: %s not found\n", device);
+    return -1;
+}
+
+static int read_notify(const char *dirname, int nfd)
+{
+    int res;
+    char devname[PATH_MAX];
+    char *filename;
+    char event_buf[512];
+    int event_size;
+    int event_pos = 0;
+    struct inotify_event *event;
+
+    res = read(nfd, event_buf, sizeof(event_buf));
+    if(res < (int)sizeof(*event)) {
+        if(errno == EINTR)
+            return 0;
+        error("could not get event, %s\n", strerror(errno));
+        return 1;
+    }
+    //printf("got %d bytes of event information\n", res);
+
+    strcpy(devname, dirname);
+    filename = devname + strlen(devname);
+    *filename++ = '/';
+
+    while(res >= (int)sizeof(*event)) {
+        event = (struct inotify_event *)(event_buf + event_pos);
+        debug("%d: %08x \"%s\"\n", event->wd, event->mask, event->len ? event->name : "");
+        if((event->len)&&(memcmp(event->name, "hidraw", strlen("hidraw"))==0)) {
+            debug("read_notify: %d: %08x \"%s\"\n", event->wd, event->mask, event->len ? event->name : "");
+            strcpy(filename, event->name);
+            if(event->mask & IN_CREATE) {
+                open_device(devname);
+            }
+            else {
+                close_device(devname);
+            }
+        }
+        event_size = sizeof(*event) + event->len;
+        res -= event_size;
+        event_pos += event_size;
+    }
+    return 0;
+}
+
+
+static int scan_dir(const char *dirname)
+{
+    char devname[PATH_MAX];
+    char *filename;
+    DIR *dir;
+    struct dirent *de;
+    dir = opendir(dirname);
+    if(dir == NULL)
+        return -1;
+    strcpy(devname, dirname);
+    filename = devname + strlen(devname);
+    *filename++ = '/';
+    while((de = readdir(dir))) {
+        if(de->d_name[0] == '.' &&
+           (de->d_name[1] == '\0' ||
+            (de->d_name[1] == '.' && de->d_name[2] == '\0')))
+            continue;
+        if(memcmp(de->d_name,"hidraw",strlen("hidraw")))
+            continue;
+        strcpy(filename, de->d_name);
+        //debug("scan_dir: %s\n",devname);
+        open_device(devname);
+    }
+    closedir(dir);
+    return 0;
+}
+
+static void voice_ctrl_recv(void)
+{
+    unsigned char cmd[256], opcode = 0xFF;
+    int n, i;
+
+    n = UIPC_Read(UIPC_CH_ID_VOICE_CTRL, NULL, cmd, 256);
+
+    /* detach on ctrl channel means audioflinger process was terminated */
+    if (n == 0)
+    {
+        debug("CTRL CH DETACHED");
+        //the ctrl channel will re-open automatically
+        UIPC_Close(UIPC_CH_ID_VOICE_CTRL);
+        return;
+    }
+
+    debug("receive voice-ctrl-cmd read num_of_data = %d ", n);
+    for (i=0; i< n; i++)
+        info("data[%d] = %d ", i, cmd[i]);
+    //receive start or stop cmd from service
+    if( cmd[0] <= OPCODE_MAX)
+    {
+        opcode = cmd[0];
+    }
+    else
+    {
+        //clear the memory
+        UIPC_Ioctl(UIPC_CH_ID_VOICE_CTRL, UIPC_REQ_RX_FLUSH,NULL);
+        info("it is wrong cmd send from service");
+    }
+
+    info("opcode = %d",opcode);
+    switch(opcode)
+    {
+        case OPCODE_SETTING_RESET:              //0   cmd(1)
+            break;
+
+        case OPCODE_VOICE_START_CMD:            //1   cmd(1)
+            debug("start, len=%d", n);
+            break;
+
+        case OPCODE_VOICE_STOP_CMD:             //2   cmd(1)
+            debug("stop, len=%d", n);
+            break;
+
+        case OPCODE_SET_RCU_INFO:               //3   cmd(1) + vid(2) + pid(2) + vers(2)
+            if(n == 7) {
+                int vid = (cmd[1] << 8) + cmd[2];
+                int pid = (cmd[3] << 8) + cmd[4];
+                int vers = (cmd[5] << 8) + cmd[6];
+                set_rcu_info(vid,pid,vers);
+            }
+            break;
+
+        case OPCODE_SET_VOICE_DATA_REPORT_ID:   //4   cmd(1) + reportID(1)
+            if(n == 2) {
+                set_voice_data_reportID(cmd[1]);
+            }
+            break;
+
+        case OPCODE_SET_VOICE_CMD_REPORT_ID:    //5   cmd(1) + reportID(1)
+            if(n == 2) {
+                set_voice_cmd_reportID(cmd[1]);
+            }
+            break;
+
+        case OPCODE_SET_VOICE_KEY_REPORT_ID:    //6   cmd(1) + reportID(1)
+            if(n == 2) {
+                set_voice_key_reportID(cmd[1]);
+            }
+            break;
+
+        case OPCODE_SET_VOICE_KEYPRESS_DATA:    //7   cmd(1) + len(1) + data(n)
+            if(n > 2) {
+                int len = cmd[1];
+                set_voice_keypress_data(len, cmd + 2);
+            }
+            break;
+
+        case OPCODE_SET_VOICE_KEYRELEASE_DATA:  //8   cmd(1) + len(1) + data(n)
+            if(n > 2) {
+                int len = cmd[1];
+                set_voice_keyrelease_data(len, cmd + 2);
+            }
+            break;
+
+        case OPCODE_SET_VOICE_STARTCMD_DATA:    //9   cmd(1) + len(1) + data(n)
+            debug("set voice start data, len=%d", cmd[1]);
+            break;
+
+        case OPCODE_SET_VOICE_STOPCMD_DATA:     //10  cmd(1) + len(1) + data(n)
+            debug("set voice stop data, len=%d", cmd[1]);
+            break;
+
+        case OPCODE_SET_ENCODE_TYPE:            //11  cmd(1) + type(1)
+            if(n == 2) {
+                set_encode_type(cmd[1]);
+            }
+            break;
+
+        case OPCODE_SET_DATA_TYPE_MASK:         //12  cmd(1) + type(1)
+            debug("set type mask: 0x%02x", cmd[1]);
+            break;
+
+        case OPCODE_SET_AUTO_CMD:               //13  cmd(1) + auto(1)
+            if(n == 2) {
+                set_auto_cmd(cmd[1]);
+            }
+            break;
+
+        case OPCODESEND_HIDRAW_DATA:            //14  cmd(1) + reportID(1) + len(1) + data(n)
+            debug("send raw data, reportID=0x%02x, len=0x%02x", cmd[1], cmd[2]);
+            break;
+
+        case OPCODE_EXIT:
+            debug("exit");
+            gSocket_Running = 0;
+    }
+
+    info("voice-ctrl-cmd DOWN!");
+}
+
+static void voice_data_recv(void)
+{
+    unsigned char cmd[256], opcode = 0xFF;
+    int n, i;
+
+    n = UIPC_Read(UIPC_CH_ID_VOICE_DATA, NULL, cmd, 256);
+
+    /* detach on ctrl channel means audioflinger process was terminated */
+    if (n == 0)
+    {
+        debug("DATA CH DETACHED");
+        //the ctrl channel will re-open automatically
+        UIPC_Close(UIPC_CH_ID_VOICE_DATA);
+        return;
+    }
+
+    debug("receive voice-data read num_of_data = %d ", n);
+}
+
+
+static void ctrl_socket_cb(tUIPC_CH_ID ch_id, tUIPC_EVENT event)
+{
+
+    switch(event)
+    {
+        case UIPC_OPEN_EVT:
+            /*
+                in certain case, hid status msg must be sent upon ctrl chan opened
+             */
+            debug("Jim@control_socket_cb: sending hid status msg upon open");
+            break;
+
+        case UIPC_CLOSE_EVT:
+            if (gSocket_Running) {
+                debug("jim@control_socket_cb: re-open ctrl chan");
+                UIPC_Open(UIPC_CH_ID_VOICE_CTRL, ctrl_socket_cb);
+            }
+            break;
+
+        case UIPC_RX_DATA_EVT:
+            info("btif_voice_ctrl_cb, the event is UIPC_RX_DATA_EVT");
+
+        case UIPC_RX_DATA_READY_EVT:
+            voice_ctrl_recv();
+            break;
+
+        default :
+            info("### VOICE-CTRL-CHANNEL EVENT %d NOT HANDLED ###", event);
+            break;
+    }
+}
+
+static void data_socket_cb(tUIPC_CH_ID ch_id, tUIPC_EVENT event)
+{
+
+    debug("data_socket_cb");
+    switch(event)
+    {
+        case UIPC_OPEN_EVT:
+            debug("Jim@data_socket_cb: sending hid status msg upon open");
+            break;
+
+        case UIPC_CLOSE_EVT:
+            if (gSocket_Running) {
+                debug("jim@data_socket_cb: re-open data chan");
+                UIPC_Open(UIPC_CH_ID_VOICE_DATA, data_socket_cb);
+            }
+            break;
+
+        case UIPC_RX_DATA_EVT:
+            info("data_socket_cb, the event is UIPC_RX_DATA_EVT");
+
+        case UIPC_RX_DATA_READY_EVT:
+            voice_data_recv();
+            info("data_socket_cb, the event is UIPC_RX_DATA_READY_EVT");
+            break;
+
+        default :
+            info("### VOICE-DATA-CHANNEL EVENT %d NOT HANDLED ###", event);
+            break;
+    }
+}
+
+
+
+int init(void) {
+
+    pthread_mutex_init(&mutex_voice_settings, NULL);
+    voice_msbc_init();
+    sbcInitDecoder();
+
+    gSocket_Running = 1;
+    UIPC_Init(NULL);
+    UIPC_Open(UIPC_CH_ID_VOICE_CTRL, ctrl_socket_cb);
+    UIPC_Open(UIPC_CH_ID_VOICE_DATA, data_socket_cb);
+
+    return 0;
+}
+
+void cleanup(void) {
+
+    gSocket_Running = 0;
+    UIPC_Close(UIPC_CH_ID_VOICE_DATA);
+    UIPC_Close(UIPC_CH_ID_VOICE_CTRL);
+
+    pthread_mutex_lock(&mutex_voice_settings);
+    
+    
+    if(global_voice_setting.voice_keypress_data != NULL)
+        free(global_voice_setting.voice_keypress_data);
+
+    if(global_voice_setting.voice_keyrelease_data != NULL)
+        free(global_voice_setting.voice_keyrelease_data);
+
+    pthread_mutex_unlock(&mutex_voice_settings);
+    //release other resources here
+}
+
+
+int main(void) {
+    const char *device_path = "/dev";
+    int res;
+    int i;
+
+    init();
+
+    nfds = 1;
+    ufds = calloc(1, sizeof(ufds[0]));
+    ufds[0].fd = inotify_init();
+    ufds[0].events = POLLIN;
+
+    res = inotify_add_watch(ufds[0].fd, device_path, IN_DELETE | IN_CREATE);
+    if(res < 0) {
+        error("could not add watch for %s, %s\n", device_path, strerror(errno));
+        return -1;
+    }
+
+    res = scan_dir(device_path);
+    if(res < 0) {
+        error("scan dir failed for %s\n", device_path);
+        return -2;
+    }
+
+    while(gSocket_Running) {
+        poll(ufds, nfds, -1);
+        if(ufds[0].revents & POLLIN) {
+            //debug("new notify event!!!");
+            read_notify(device_path, ufds[0].fd);
+        }
+
+        for(i = 1; i < nfds; i++) {
+            if(ufds[i].revents) {
+                /*
+                //debug("new message event, fd = %d, event = %04x.", ufds[i].fd, ufds[i].revents);
+                if((ufds[i].revents & POLLHUP) && (ufds[i].revents & POLLERR)) {
+                    debug("close, fd=%d, events=0x%04x", ufds[i].fd, ufds[i].revents);
+                    close(ufds[i].fd);
+                 
+                }else if(ufds[i].revents & POLLIN) {
+                    //debug("new message event!!!");
+                    read_message(ufds[i].fd);
+                }
+                */
+                if(ufds[i].revents & POLLIN) {
+                    //debug("new message event!!!");
+                    read_message(ufds[i].fd);
+                }
+            }
+        }
+    }
+    cleanup();
+    
+    return 0;
+
+}
+
diff --git a/rtkbt/addon/vr_bee2_hidraw_daemon/hidraw/voice_hidraw.h b/rtkbt/addon/vr_bee2_hidraw_daemon/hidraw/voice_hidraw.h
new file mode 100755
index 0000000..9ea31d6
--- /dev/null
+++ b/rtkbt/addon/vr_bee2_hidraw_daemon/hidraw/voice_hidraw.h
@@ -0,0 +1,55 @@
+#ifndef VOICE_HIDRAW_H
+#define VOICE_HIDRAW_H
+
+#include <cutils/log.h>
+
+
+#define DECODE_TYPE_MSBC 1
+#define DECODE_TYPE_SBC 2
+#define DECODE_TYPE_MAX 2
+
+#define DATA_TYPE_MASK_VOICE (0x01)
+#define DATA_TYPE_MASK_RAW (0x02)
+
+#define AUTOCMD_AUTO 1
+#define AUTOCMD_NONE 2
+
+#define SW_VERSION (0x0000)
+
+#define CONFIG_PATH "/system/etc/hidraw_setting"
+
+
+#define warn(fmt, ...) ALOGW ("## WARNING : %s(L%d):  " fmt "##",__FUNCTION__, __LINE__, ## __VA_ARGS__)
+#define error(fmt, ...) ALOGE ("## ERROR : %s(L%d): " fmt "##",__FUNCTION__, __LINE__, ## __VA_ARGS__)
+
+#define info(fmt, ...)  ALOGI ("%s(L%d): " fmt,__FUNCTION__, __LINE__,  ## __VA_ARGS__)
+#define debug(fmt, ...) ALOGD ("%s(L%d): " fmt,__FUNCTION__, __LINE__,  ## __VA_ARGS__)
+
+
+#define VOICE_DATA_PATH     "/data/misc/bluedroid/.voice_data"
+#define VOICE_CTRL_PATH     "/data/misc/bluedroid/.voice_ctrl"
+
+
+
+//supported opcode
+
+#define OPCODE_SETTING_RESET                0   //cmd(1)
+#define OPCODE_VOICE_START_CMD              1   //cmd(1)
+#define OPCODE_VOICE_STOP_CMD               2   //cmd(1)
+#define OPCODE_SET_RCU_INFO                 3   //cmd(1) + vid(2) + pid(2) + vers(2)
+#define OPCODE_SET_VOICE_DATA_REPORT_ID     4   //cmd(1) + reportID(1)
+#define OPCODE_SET_VOICE_CMD_REPORT_ID      5   //cmd(1) + reportID(1)
+#define OPCODE_SET_VOICE_KEY_REPORT_ID      6   //cmd(1) + reportID(1)
+#define OPCODE_SET_VOICE_KEYPRESS_DATA      7   //cmd(1) + len(1) + data(n)
+#define OPCODE_SET_VOICE_KEYRELEASE_DATA    8   //cmd(1) + len(1) + data(n)
+#define OPCODE_SET_VOICE_STARTCMD_DATA      9   //cmd(1) + len(1) + data(n)
+#define OPCODE_SET_VOICE_STOPCMD_DATA       10  //cmd(1) + len(1) + data(n)
+#define OPCODE_SET_ENCODE_TYPE              11  //cmd(1) + type(1)
+#define OPCODE_SET_DATA_TYPE_MASK           12  //cmd(1) + type(1)
+#define OPCODE_SET_AUTO_CMD                 13  //cmd(1) + auto(1)
+#define OPCODESEND_HIDRAW_DATA              14  //cmd(1) + reportID(1) + len(1) + data(n)
+#define OPCODE_EXIT                         15  //cmd(1) 
+
+#define OPCODE_MAX                          15
+
+#endif
diff --git a/rtkbt/addon/vr_bee2_hidraw_daemon/hidraw/voice_uipc.c b/rtkbt/addon/vr_bee2_hidraw_daemon/hidraw/voice_uipc.c
new file mode 100755
index 0000000..567dd85
--- /dev/null
+++ b/rtkbt/addon/vr_bee2_hidraw_daemon/hidraw/voice_uipc.c
@@ -0,0 +1,916 @@
+/*****************************************************************************
+ *
+ *  Filename:      uipc.c
+ *
+ *  Description:   UIPC implementation for bluedroid
+ *
+ *****************************************************************************/
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+
+#include <sys/stat.h>
+#include <unistd.h>
+#include <fcntl.h>
+
+#include <sys/socket.h>
+#include <sys/un.h>
+#include <signal.h>
+#include <errno.h>
+#include <pthread.h>
+#include <sys/select.h>
+#include <sys/poll.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <sys/prctl.h>
+
+
+#include "voice_uipc.h"
+#include "voice_hidraw.h"
+
+#include <cutils/sockets.h>
+
+volatile int uipc_inited = 0;
+
+
+/*****************************************************************************
+**  Constants & Macros
+******************************************************************************/
+
+#define MAX(a,b) ((a)>(b)?(a):(b))
+
+#define CASE_RETURN_STR(const) case const: return #const;
+
+#define UIPC_DISCONNECTED (-1)
+
+#define UIPC_LOCK() /*BTIF_TRACE_EVENT(" %s lock", __FUNCTION__);*/ pthread_mutex_lock(&uipc_main.mutex);
+#define UIPC_UNLOCK() /*BTIF_TRACE_EVENT("%s unlock", __FUNCTION__);*/ pthread_mutex_unlock(&uipc_main.mutex);
+
+#define SAFE_FD_ISSET(fd, set) (((fd) == -1) ? 0 : FD_ISSET((fd), (set)))
+
+#define UIPC_FLUSH_BUFFER_SIZE 1024
+
+/*****************************************************************************
+**  Local type definitions
+******************************************************************************/
+
+typedef enum {
+    UIPC_TASK_FLAG_DISCONNECT_CHAN = 0x1,
+} tUIPC_TASK_FLAGS;
+
+typedef struct {
+    int srvfd;
+    int fd;
+    int read_poll_tmo_ms;
+    int task_evt_flags;   /* event flags pending to be processed in read task */
+    tUIPC_EVENT cond_flags;
+    pthread_mutex_t cond_mutex;
+    pthread_cond_t  cond;
+    tUIPC_RCV_CBACK *cback;
+} tUIPC_CHAN;
+
+typedef struct {
+    pthread_t tid; /* main thread id */
+    int running;
+    pthread_mutex_t mutex;
+
+    fd_set active_set;
+    fd_set read_set;
+    int max_fd;
+    int signal_fds[2];
+
+    tUIPC_CHAN ch[UIPC_CH_NUM];
+} tUIPC_MAIN;
+
+
+/*****************************************************************************
+**  Static variables
+******************************************************************************/
+
+static tUIPC_MAIN uipc_main;
+
+
+/*****************************************************************************
+**  Static functions
+******************************************************************************/
+
+static int uipc_close_ch_locked(tUIPC_CH_ID ch_id);
+
+/*****************************************************************************
+**  Externs
+******************************************************************************/
+
+
+/*****************************************************************************
+**   Helper functions
+******************************************************************************/
+
+
+const char* dump_uipc_event(tUIPC_EVENT event)
+{
+    switch(event)
+    {
+        CASE_RETURN_STR(UIPC_OPEN_EVT)
+        CASE_RETURN_STR(UIPC_CLOSE_EVT)
+        CASE_RETURN_STR(UIPC_RX_DATA_EVT)
+        CASE_RETURN_STR(UIPC_RX_DATA_READY_EVT)
+        CASE_RETURN_STR(UIPC_TX_DATA_READY_EVT)
+        default:
+            return "UNKNOWN MSG ID";
+    }
+}
+
+/*****************************************************************************
+**   socket helper functions
+*****************************************************************************/
+
+static inline int create_server_socket(const char* name)
+{
+    int s = socket(AF_LOCAL, SOCK_STREAM, 0);
+    if (s < 0)
+        return -1;
+
+    info("create_server_socket %s", name);
+
+    if(socket_local_server_bind(s, name, ANDROID_SOCKET_NAMESPACE_ABSTRACT) < 0)
+    {
+        error("socket failed to create (%s)", strerror(errno));
+        close(s);
+        return -1;
+    }
+
+    if(listen(s, 5) < 0)
+    {
+        error("listen failed", strerror(errno));
+        close(s);
+        return -1;
+    }
+
+    info("created socket fd %d", s);
+    return s;
+}
+
+static int accept_server_socket(int sfd)
+{
+    struct sockaddr_un remote;
+    struct pollfd pfd;
+    int fd;
+    socklen_t len = sizeof(struct sockaddr_un);
+
+    info("accept fd %d", sfd);
+
+    /* make sure there is data to process */
+    pfd.fd = sfd;
+    pfd.events = POLLIN;
+
+    if (poll(&pfd, 1, 0) == 0)
+    {
+        error("accept poll timeout");
+        return -1;
+    }
+
+    //BTIF_TRACE_EVENT("poll revents 0x%x", pfd.revents);
+
+    if ((fd = accept(sfd, (struct sockaddr *)&remote, &len)) == -1)
+    {
+         error("sock accept failed (%s)", strerror(errno));
+         return -1;
+    }
+
+    //BTIF_TRACE_EVENT("new fd %d", fd);
+
+    return fd;
+}
+
+/*****************************************************************************
+**
+**   uipc helper functions
+**
+*****************************************************************************/
+
+static int uipc_main_init(void)
+{
+    int i;
+    pthread_mutexattr_t attr;
+    pthread_mutexattr_init(&attr);
+    pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
+    pthread_mutex_init(&uipc_main.mutex, &attr);
+
+    debug("### uipc_main_init ###");
+
+    /* setup interrupt socket pair */
+    if (socketpair(AF_UNIX, SOCK_STREAM, 0, uipc_main.signal_fds) < 0)
+    {
+        return -1;
+    }
+
+    FD_SET(uipc_main.signal_fds[0], &uipc_main.active_set);
+    uipc_main.max_fd = MAX(uipc_main.max_fd, uipc_main.signal_fds[0]);
+
+    for (i=0; i< UIPC_CH_NUM; i++)
+    {
+        tUIPC_CHAN *p = &uipc_main.ch[i];
+        p->srvfd = UIPC_DISCONNECTED;
+        p->fd = UIPC_DISCONNECTED;
+        p->task_evt_flags = 0;
+        pthread_cond_init(&p->cond, NULL);
+        pthread_mutex_init(&p->cond_mutex, NULL);
+        p->cback = NULL;
+    }
+
+    return 0;
+}
+
+void uipc_main_cleanup(void)
+{
+    int i;
+
+    info("uipc_main_cleanup");
+
+    close(uipc_main.signal_fds[0]);
+    close(uipc_main.signal_fds[1]);
+
+    /* close any open channels */
+    for (i=0; i<UIPC_CH_NUM; i++)
+        uipc_close_ch_locked(i);
+}
+
+
+
+/* check pending events in read task */
+static void uipc_check_task_flags_locked(void)
+{
+    int i;
+
+    for (i=0; i<UIPC_CH_NUM; i++)
+    {
+        //BTIF_TRACE_EVENT("CHECK TASK FLAGS %x %x",  uipc_main.ch[i].task_evt_flags, UIPC_TASK_FLAG_DISCONNECT_CHAN);
+        if (uipc_main.ch[i].task_evt_flags & UIPC_TASK_FLAG_DISCONNECT_CHAN)
+        {
+            uipc_main.ch[i].task_evt_flags &= ~UIPC_TASK_FLAG_DISCONNECT_CHAN;
+            uipc_close_ch_locked(i);
+        }
+
+        /* add here */
+
+    }
+}
+
+
+static int uipc_check_fd_locked(tUIPC_CH_ID ch_id)
+{
+    if (ch_id >= UIPC_CH_NUM)
+        return -1;
+
+    //BTIF_TRACE_EVENT("CHECK SRVFD %d (ch %d)", uipc_main.ch[ch_id].srvfd, ch_id);
+
+    if (SAFE_FD_ISSET(uipc_main.ch[ch_id].srvfd, &uipc_main.read_set))
+    {
+        debug("INCOMING CONNECTION ON CH %d", ch_id);
+
+        uipc_main.ch[ch_id].fd = accept_server_socket(uipc_main.ch[ch_id].srvfd);
+
+        debug("NEW FD %d", uipc_main.ch[ch_id].fd);
+
+        if ((uipc_main.ch[ch_id].fd > 0) && uipc_main.ch[ch_id].cback)
+        {
+            /*  if we have a callback we should add this fd to the active set
+                and notify user with callback event */
+            debug("ADD FD %d TO ACTIVE SET", uipc_main.ch[ch_id].fd);
+            FD_SET(uipc_main.ch[ch_id].fd, &uipc_main.active_set);
+            uipc_main.max_fd = MAX(uipc_main.max_fd, uipc_main.ch[ch_id].fd);
+        }
+
+        if (uipc_main.ch[ch_id].fd < 0)
+        {
+            error("FAILED TO ACCEPT CH %d (%s)", ch_id, strerror(errno));
+            return -1;
+        }
+
+        if (uipc_main.ch[ch_id].cback)
+            uipc_main.ch[ch_id].cback(ch_id, UIPC_OPEN_EVT);
+    }
+
+    //BTIF_TRACE_EVENT("CHECK FD %d (ch %d)", uipc_main.ch[ch_id].fd, ch_id);
+
+    if (SAFE_FD_ISSET(uipc_main.ch[ch_id].fd, &uipc_main.read_set))
+    {
+        //BTIF_TRACE_EVENT("INCOMING DATA ON CH %d", ch_id);
+
+        if (uipc_main.ch[ch_id].cback)
+            uipc_main.ch[ch_id].cback(ch_id, UIPC_RX_DATA_READY_EVT);
+    }
+    return 0;
+}
+
+static void uipc_check_interrupt_locked(void)
+{
+    if (SAFE_FD_ISSET(uipc_main.signal_fds[0], &uipc_main.read_set))
+    {
+        char sig_recv = 0;
+        //BTIF_TRACE_EVENT("UIPC INTERRUPT");
+        recv(uipc_main.signal_fds[0], &sig_recv, sizeof(sig_recv), MSG_WAITALL);
+    }
+}
+
+static inline void uipc_wakeup_locked(void)
+{
+    char sig_on = 1;
+    info("UIPC SEND WAKE UP");
+    send(uipc_main.signal_fds[1], &sig_on, sizeof(sig_on), 0);
+}
+
+static int uipc_setup_server_locked(tUIPC_CH_ID ch_id, char *name, tUIPC_RCV_CBACK *cback)
+{
+    int fd;
+
+    debug("SETUP CHANNEL SERVER %d", ch_id);
+
+    if (ch_id >= UIPC_CH_NUM)
+        return -1;
+
+    UIPC_LOCK();
+
+    fd = create_server_socket(name);
+
+    if (fd < 0)
+    {
+        error("failed to setup %s", name, strerror(errno));
+        UIPC_UNLOCK();
+         return -1;
+    }
+
+    debug("ADD SERVER FD TO ACTIVE SET %d", fd);
+    FD_SET(fd, &uipc_main.active_set);
+    uipc_main.max_fd = MAX(uipc_main.max_fd, fd);
+
+    uipc_main.ch[ch_id].srvfd = fd;
+    uipc_main.ch[ch_id].cback = cback;
+    uipc_main.ch[ch_id].read_poll_tmo_ms = DEFAULT_READ_POLL_TMO_MS;
+
+    /* trigger main thread to update read set */
+    uipc_wakeup_locked();
+
+    UIPC_UNLOCK();
+
+    return 0;
+}
+
+static void uipc_flush_ch_locked(tUIPC_CH_ID ch_id)
+{
+    char buf[UIPC_FLUSH_BUFFER_SIZE];
+    struct pollfd pfd;
+    int ret;
+
+    pfd.events = POLLIN;
+    pfd.fd = uipc_main.ch[ch_id].fd;
+
+    if (uipc_main.ch[ch_id].fd == UIPC_DISCONNECTED)
+    {
+        debug("%s() - fd disconnected. Exiting", __FUNCTION__);
+        return;
+    }
+
+    while (1)
+    {
+        ret = poll(&pfd, 1, 1);
+        info("%s() - polling fd %d, revents: 0x%x, ret %d",
+                __FUNCTION__, pfd.fd, pfd.revents, ret);
+
+        if (pfd.revents & (POLLERR|POLLHUP))
+        {
+            debug("%s() - POLLERR or POLLHUP. Exiting", __FUNCTION__);
+            return;
+        }
+
+        if (ret <= 0)
+        {
+            error("%s() - error (%d). Exiting", __FUNCTION__, ret);
+            return;
+        }
+
+        /* read sufficiently large buffer to ensure flush empties socket faster than
+           it is getting refilled */
+        read(pfd.fd, &buf, UIPC_FLUSH_BUFFER_SIZE);
+    }
+}
+
+
+static void uipc_flush_locked(tUIPC_CH_ID ch_id)
+{
+    if (ch_id >= UIPC_CH_NUM)
+        return;
+
+    switch(ch_id)
+    {
+        case UIPC_CH_ID_VOICE_DATA:
+            uipc_flush_ch_locked(UIPC_CH_ID_VOICE_DATA);
+            break;
+
+        case UIPC_CH_ID_VOICE_CTRL:
+            uipc_flush_ch_locked(UIPC_CH_ID_VOICE_CTRL);
+            break;
+    }
+}
+
+
+static int uipc_close_ch_locked(tUIPC_CH_ID ch_id)
+{
+    int wakeup = 0;
+
+    debug("CLOSE CHANNEL %d", ch_id);
+
+    if (ch_id >= UIPC_CH_NUM)
+        return -1;
+
+    if (uipc_main.ch[ch_id].srvfd != UIPC_DISCONNECTED)
+    {
+        info("CLOSE SERVER (FD %d)", uipc_main.ch[ch_id].srvfd);
+        close(uipc_main.ch[ch_id].srvfd);
+        FD_CLR(uipc_main.ch[ch_id].srvfd, &uipc_main.active_set);
+        uipc_main.ch[ch_id].srvfd = UIPC_DISCONNECTED;
+        wakeup = 1;
+    }
+
+    if (uipc_main.ch[ch_id].fd != UIPC_DISCONNECTED)
+    {
+        info("CLOSE CONNECTION (FD %d)", uipc_main.ch[ch_id].fd);
+        close(uipc_main.ch[ch_id].fd);
+        FD_CLR(uipc_main.ch[ch_id].fd, &uipc_main.active_set);
+        uipc_main.ch[ch_id].fd = UIPC_DISCONNECTED;
+        wakeup = 1;
+    }
+
+    /* notify this connection is closed */
+    if (uipc_main.ch[ch_id].cback)
+        uipc_main.ch[ch_id].cback(ch_id, UIPC_CLOSE_EVT);
+
+    /* trigger main thread update if something was updated */
+    if (wakeup)
+        uipc_wakeup_locked();
+
+    return 0;
+}
+
+
+void uipc_close_locked(tUIPC_CH_ID ch_id)
+{
+    if (uipc_main.ch[ch_id].srvfd == UIPC_DISCONNECTED)
+    {
+        warn("CHANNEL %d ALREADY CLOSED", ch_id);
+        return;
+    }
+
+    /* schedule close on this channel */
+    uipc_main.ch[ch_id].task_evt_flags |= UIPC_TASK_FLAG_DISCONNECT_CHAN;
+    uipc_wakeup_locked();
+}
+
+
+static void uipc_read_task(void *arg)
+{
+    int ch_id;
+    int result;
+
+    prctl(PR_SET_NAME, (unsigned long)"uipc-main", 0, 0, 0);
+
+
+    while (uipc_main.running)
+    {
+        uipc_main.read_set = uipc_main.active_set;
+
+        result = select(uipc_main.max_fd+1, &uipc_main.read_set, NULL, NULL, NULL);
+
+        if (result == 0)
+        {
+            info("select timeout");
+            continue;
+        }
+        else if (result < 0)
+        {
+            warn("select failed %s", strerror(errno));
+            continue;
+        }
+
+        UIPC_LOCK();
+
+        /* clear any wakeup interrupt */
+        uipc_check_interrupt_locked();
+
+        /* check pending task events */
+        uipc_check_task_flags_locked();
+
+
+        /* check for other connections */
+        for (ch_id = 0; ch_id < UIPC_CH_NUM; ch_id++)
+        {
+            uipc_check_fd_locked(ch_id);
+        }
+
+        UIPC_UNLOCK();
+    }
+
+    debug("UIPC READ THREAD EXITING");
+
+    uipc_main_cleanup();
+
+    uipc_main.tid = 0;
+
+    debug("UIPC READ THREAD DONE");
+}
+
+
+int uipc_start_main_server_thread(void)
+{
+    uipc_main.running = 1;
+
+    if (pthread_create(&uipc_main.tid, (const pthread_attr_t *) NULL, (void*)uipc_read_task, NULL) < 0)
+    {
+        error("uipc_thread_create pthread_create failed:%d", errno);
+        return -1;
+    }
+
+    return 0;
+}
+
+/* blocking call */
+void uipc_stop_main_server_thread(void)
+{
+    /* request shutdown of read thread */
+    UIPC_LOCK();
+    uipc_main.running = 0;
+    uipc_wakeup_locked();
+    UIPC_UNLOCK();
+
+    /* wait until read thread is fully terminated */
+    /* tid might hold pointer value where it's value
+       is negative vaule with singed bit is set, so
+       corrected the logic to check zero or non zero */
+    if (uipc_main.tid)
+        pthread_join(uipc_main.tid, NULL);
+}
+
+/*******************************************************************************
+ **
+ ** Function         UIPC_Init
+ **
+ ** Description      Initialize UIPC module
+ **
+ ** Returns          void
+ **
+ *******************************************************************************/
+
+void UIPC_Init(void *p_data)
+{
+    debug("UIPC_Init");
+    if (uipc_inited == 1)
+    {
+        return;
+    }
+    uipc_inited = 1;
+
+    memset(&uipc_main, 0, sizeof(tUIPC_MAIN));
+
+    uipc_main_init();
+
+    uipc_start_main_server_thread();
+}
+
+/*******************************************************************************
+ **
+ ** Function         UIPC_Open
+ **
+ ** Description      Open UIPC interface
+ **
+ ** Returns          TRUE in case of success, FALSE in case of failure.
+ **
+ *******************************************************************************/
+int UIPC_Open(tUIPC_CH_ID ch_id, tUIPC_RCV_CBACK *p_cback)
+{
+    debug("UIPC_Open : ch_id %d, p_cback %x", ch_id, p_cback);
+
+    UIPC_LOCK();
+
+    if (ch_id >= UIPC_CH_NUM)
+    {
+        UIPC_UNLOCK();
+        return -1;
+    }
+
+    if (uipc_main.ch[ch_id].srvfd != UIPC_DISCONNECTED)
+    {
+        debug("CHANNEL %d ALREADY OPEN", ch_id);
+
+        if(uipc_main.ch[ch_id].fd > 0)
+        {
+            debug("the client socket is not disconnect");
+        }
+
+        UIPC_UNLOCK();
+        return 0;
+    }
+
+    switch(ch_id)
+    {
+        case UIPC_CH_ID_VOICE_CTRL:
+            uipc_setup_server_locked(ch_id, VOICE_CTRL_PATH, p_cback);
+            break;
+
+        case UIPC_CH_ID_VOICE_DATA:
+            uipc_setup_server_locked(ch_id, VOICE_DATA_PATH, p_cback);
+            break;
+
+    }
+
+    UIPC_UNLOCK();
+
+    return 0;
+}
+
+/*******************************************************************************
+ **
+ ** Function         UIPC_Close
+ **
+ ** Description      Close UIPC interface
+ **
+ ** Returns          void
+ **
+ *******************************************************************************/
+
+void UIPC_Close(tUIPC_CH_ID ch_id)
+{
+    debug("UIPC_Close : ch_id %d", ch_id);
+
+    /* special case handling uipc shutdown */
+    if (ch_id != UIPC_CH_ID_ALL)
+    {
+        UIPC_LOCK();
+        uipc_close_locked(ch_id);
+        UIPC_UNLOCK();
+    }
+    else
+    {
+
+        int i;
+        for (i=0; i<UIPC_CH_NUM; i++)
+            uipc_close_ch_locked(i);
+
+        info("UIPC_Close : waiting for shutdown to complete");
+        uipc_stop_main_server_thread();
+        debug("UIPC_Close : shutdown complete");
+    }
+}
+
+/*******************************************************************************
+ **
+ ** Function         UIPC_Send
+ **
+ ** Description      Called to transmit a message over UIPC.
+ **
+ ** Returns          TRUE in case of success, FALSE in case of failure.
+ **
+ *******************************************************************************/
+int UIPC_Send(tUIPC_CH_ID ch_id, unsigned short msg_evt, unsigned char *p_buf,
+        unsigned short msglen)
+{
+    int ret = false;
+
+    info("UIPC_Send : ch_id:%d %d bytes", ch_id, msglen);
+
+    UIPC_LOCK();
+
+    if (write(uipc_main.ch[ch_id].fd, p_buf, msglen) < 0)
+    {
+        error("failed to write (%s)", strerror(errno));
+        ret = errno;
+    }
+
+    UIPC_UNLOCK();
+
+    return ret;
+
+}
+int UIPC_Send_noblock(tUIPC_CH_ID ch_id, unsigned short msg_evt, unsigned char *p_buf, unsigned short msglen)
+{
+    int res = 0;
+    struct pollfd pfd;
+    int fd = uipc_main.ch[ch_id].fd;
+
+    UIPC_LOCK();
+
+    pfd.fd = fd;
+    pfd.events = POLLOUT|POLLHUP;
+    if (poll(&pfd, 1, 0) == 0)
+    {
+        goto unlock;
+    }
+
+    if (pfd.revents & (POLLHUP|POLLNVAL) )
+    {
+        debug("poll : channel detached remotely");
+        uipc_close_locked(ch_id);
+        goto unlock;
+    }
+
+    res = send(uipc_main.ch[ch_id].fd, p_buf, msglen, MSG_DONTWAIT);
+    if (res < 0)
+    {
+        error("failed to write (%s)", strerror(errno));
+    }
+
+unlock:
+    UIPC_UNLOCK();
+
+    return res;
+}
+
+
+int UIPC_Read_noblock(tUIPC_CH_ID ch_id, unsigned short *p_msg_evt, unsigned char *p_buf, unsigned int len)
+{
+    int n;
+    int n_read = 0;
+    int fd = uipc_main.ch[ch_id].fd;
+    struct pollfd pfd;
+
+    if (ch_id >= UIPC_CH_NUM)
+    {
+        error("UIPC_Read_noblock : invalid ch id %d", ch_id);
+        return 0;
+    }
+
+    if (fd == UIPC_DISCONNECTED)
+    {
+        error("UIPC_Read_noblock : channel %d closed", ch_id);
+        return 0;
+    }
+
+    pfd.fd = fd;
+    pfd.events = POLLIN|POLLHUP;
+
+    if (poll(&pfd, 1, 0) == 0)
+    {
+        return 0;
+    }
+
+    if (pfd.revents & (POLLHUP|POLLNVAL) )
+    {
+        debug("poll : channel detached remotely");
+        UIPC_LOCK();
+        uipc_close_locked(ch_id);
+        UIPC_UNLOCK();
+        return 0;
+    }
+
+    n_read = recv(fd, p_buf, len, MSG_DONTWAIT|MSG_NOSIGNAL);
+
+    return n_read;
+}
+
+/*******************************************************************************
+ **
+ ** Function         UIPC_Read
+ **
+ ** Description      Called to read a message from UIPC.
+ **
+ ** Returns          return the number of bytes read.
+ **
+ *******************************************************************************/
+
+int UIPC_Read(tUIPC_CH_ID ch_id, unsigned short *p_msg_evt, unsigned char *p_buf, unsigned int len)
+{
+    int n;
+    int n_read = 0;
+    int fd = uipc_main.ch[ch_id].fd;
+    struct pollfd pfd;
+
+
+    if (ch_id >= UIPC_CH_NUM)
+    {
+        error("UIPC_Read : invalid ch id %d", ch_id);
+        return 0;
+    }
+
+    if (fd == UIPC_DISCONNECTED)
+    {
+        error("UIPC_Read : channel %d closed", ch_id);
+        return 0;
+    }
+
+    //BTIF_TRACE_DEBUG("UIPC_Read : ch_id %d, len %d, fd %d, polltmo %d", ch_id, len,
+    //        fd, uipc_main.ch[ch_id].read_poll_tmo_ms);
+
+    while (n_read < (int)len)
+    {
+        pfd.fd = fd;
+        pfd.events = POLLIN|POLLHUP;
+
+        /* make sure there is data prior to attempting read to avoid blocking
+           a read for more than poll timeout */
+        if (poll(&pfd, 1, uipc_main.ch[ch_id].read_poll_tmo_ms) == 0)
+        {
+            debug("poll timeout (%d ms)", uipc_main.ch[ch_id].read_poll_tmo_ms);
+            break;
+        }
+
+        //BTIF_TRACE_EVENT("poll revents %x", pfd.revents);
+
+        if (pfd.revents & (POLLHUP|POLLNVAL) )
+        {
+            debug("poll : channel detached remotely");
+            UIPC_LOCK();
+            uipc_close_locked(ch_id);
+            UIPC_UNLOCK();
+            return 0;
+        }
+
+        n = recv(fd, p_buf+n_read, len-n_read, 0);
+
+        //BTIF_TRACE_EVENT("read %d bytes", n);
+
+        if (n == 0)
+        {
+            debug("UIPC_Read : channel detached remotely");
+            UIPC_LOCK();
+            uipc_close_locked(ch_id);
+            UIPC_UNLOCK();
+            return 0;
+        }
+
+        if (n < 0)
+        {
+            warn("UIPC_Read : read failed (%s)", strerror(errno));
+            return 0;
+        }
+
+        n_read+=n;
+
+    }
+
+    return n_read;
+}
+
+/*******************************************************************************
+**
+** Function         UIPC_Ioctl
+**
+** Description      Called to control UIPC.
+**
+** Returns          void
+**
+*******************************************************************************/
+
+extern int UIPC_Ioctl(tUIPC_CH_ID ch_id, unsigned int request, void *param)
+{
+    info("#### UIPC_Ioctl : ch_id %d, request %d ####", ch_id, request);
+
+    UIPC_LOCK();
+
+    switch(request)
+    {
+        case UIPC_REQ_RX_FLUSH:
+            uipc_flush_locked(ch_id);
+            break;
+
+        case UIPC_REG_CBACK:
+            //BTIF_TRACE_EVENT("register callback ch %d srvfd %d, fd %d", ch_id, uipc_main.ch[ch_id].srvfd, uipc_main.ch[ch_id].fd);
+            uipc_main.ch[ch_id].cback = (tUIPC_RCV_CBACK*)param;
+            break;
+
+        case UIPC_REG_REMOVE_ACTIVE_READSET:
+
+            /* user will read data directly and not use select loop */
+            if (uipc_main.ch[ch_id].fd != UIPC_DISCONNECTED)
+            {
+                /* remove this channel from active set */
+                FD_CLR(uipc_main.ch[ch_id].fd, &uipc_main.active_set);
+
+                /* refresh active set */
+                uipc_wakeup_locked();
+            }
+            break;
+
+        case UIPC_SET_READ_POLL_TMO:
+            uipc_main.ch[ch_id].read_poll_tmo_ms = (intptr_t)param;
+            debug("UIPC_SET_READ_POLL_TMO : CH %d, TMO %d ms", ch_id, uipc_main.ch[ch_id].read_poll_tmo_ms );
+            break;
+
+        case UIPC_SET_SNDBUFSIZE:
+            info("UIPC_SET_SNDBUFSIZE : CH %d, size %d", ch_id, (int)param);
+            if (uipc_main.ch[ch_id].fd != UIPC_DISCONNECTED)
+            {
+                setsockopt(uipc_main.ch[ch_id].fd , SOL_SOCKET, SO_SNDBUF, (char*)&param, (int)sizeof(int));
+            }
+            break;
+
+
+        default:
+            debug("UIPC_Ioctl : request not handled (%d)", request);
+            break;
+    }
+
+    UIPC_UNLOCK();
+
+    return -1;
+}
+
diff --git a/rtkbt/addon/vr_bee2_hidraw_daemon/hidraw/voice_uipc.h b/rtkbt/addon/vr_bee2_hidraw_daemon/hidraw/voice_uipc.h
new file mode 100755
index 0000000..bfc1975
--- /dev/null
+++ b/rtkbt/addon/vr_bee2_hidraw_daemon/hidraw/voice_uipc.h
@@ -0,0 +1,108 @@
+#ifndef VOICE_UIPC_H
+#define VOICE_UIPC_H
+
+#define UIPC_CH_ID_VOICE_CTRL   0
+#define UIPC_CH_ID_VOICE_DATA   1
+#define UIPC_CH_NUM             2
+#define UIPC_CH_ID_ALL          3   /* used to address all the ch id at once */
+
+
+#define DEFAULT_READ_POLL_TMO_MS 100
+
+typedef unsigned char tUIPC_CH_ID;
+
+/* Events generated */
+typedef enum {
+    UIPC_OPEN_EVT           = 0x0001,
+    UIPC_CLOSE_EVT          = 0x0002,
+    UIPC_RX_DATA_EVT        = 0x0004,
+    UIPC_RX_DATA_READY_EVT  = 0x0008,
+    UIPC_TX_DATA_READY_EVT  = 0x0010
+} tUIPC_EVENT;
+
+/*
+ * UIPC IOCTL Requests
+ */
+
+#define UIPC_REQ_RX_FLUSH               1
+#define UIPC_REG_CBACK                  2
+#define UIPC_REG_REMOVE_ACTIVE_READSET  3
+#define UIPC_SET_READ_POLL_TMO          4
+
+#define UIPC_SET_SNDBUFSIZE  5
+
+
+typedef void (tUIPC_RCV_CBACK)(tUIPC_CH_ID ch_id, tUIPC_EVENT event); /* points to BT_HDR which describes event type and length of data; len contains the number of bytes of entire message (sizeof(BT_HDR) + offset + size of data) */
+
+const char* dump_uipc_event(tUIPC_EVENT event);
+
+/*******************************************************************************
+**
+** Function         UIPC_Init
+**
+** Description      Initialize UIPC module
+**
+** Returns          void
+**
+*******************************************************************************/
+void UIPC_Init(void *);
+
+/*******************************************************************************
+**
+** Function         UIPC_Open
+**
+** Description      Open UIPC interface
+**
+** Returns          void
+**
+*******************************************************************************/
+int UIPC_Open(tUIPC_CH_ID ch_id, tUIPC_RCV_CBACK *p_cback);
+
+/*******************************************************************************
+**
+** Function         UIPC_Close
+**
+** Description      Close UIPC interface
+**
+** Returns          void
+**
+*******************************************************************************/
+void UIPC_Close(tUIPC_CH_ID ch_id);
+
+/*******************************************************************************
+**
+** Function         UIPC_Send
+**
+** Description      Called to transmit a message over UIPC.
+**
+** Returns          void
+**
+*******************************************************************************/
+int UIPC_Send(tUIPC_CH_ID ch_id, unsigned short msg_evt, unsigned char *p_buf, unsigned short msglen);
+int UIPC_Send_noblock(tUIPC_CH_ID ch_id, unsigned short msg_evt, unsigned char *p_buf, unsigned short msglen);
+
+/*******************************************************************************
+**
+** Function         UIPC_Read
+**
+** Description      Called to read a message from UIPC.
+**
+** Returns          void
+**
+*******************************************************************************/
+int UIPC_Read(tUIPC_CH_ID ch_id, unsigned short *p_msg_evt, unsigned char *p_buf, unsigned int len);
+extern int UIPC_Read_noblock(tUIPC_CH_ID ch_id, unsigned short *p_msg_evt, unsigned char *p_buf, unsigned int len);
+
+
+/*******************************************************************************
+**
+** Function         UIPC_Ioctl
+**
+** Description      Called to control UIPC.
+**
+** Returns          void
+**
+*******************************************************************************/
+int UIPC_Ioctl(tUIPC_CH_ID ch_id, unsigned int request, void *param);
+
+#endif  /* UIPC_H */
diff --git a/rtkbt/addon/vr_bee2_hidraw_daemon/system/etc/hidraw_setting b/rtkbt/addon/vr_bee2_hidraw_daemon/system/etc/hidraw_setting
new file mode 100755
index 0000000..7496177
--- /dev/null
+++ b/rtkbt/addon/vr_bee2_hidraw_daemon/system/etc/hidraw_setting
@@ -0,0 +1,20 @@
+[Rcu]
+Vid=005d
+Pid=0002
+Ver=0000
+
+[ReportID]
+Key=1
+Data=5a
+Cmd=5a
+
+[ReportValue]
+KeyDownLen=8
+KeyDown=0,0,3e,0,0,0,0,0;
+KeyUpLen=8
+KeyUp=0,0,3f,0,0,0,0,0;
+
+[Settings]
+DecodeType=1
+DataMask=1
+AutoCmd=1
diff --git a/rtkbt/code/Android.mk b/rtkbt/code/Android.mk
new file mode 100755
index 0000000..720e5e4
--- /dev/null
+++ b/rtkbt/code/Android.mk
@@ -0,0 +1,4 @@
+ifeq ($(BOARD_HAVE_BLUETOOTH_RTK),true)
+LOCAL_PATH := $(call my-dir)
+include $(call all-subdir-makefiles)
+endif
diff --git a/rtkbt/code/bt/.gn b/rtkbt/code/bt/.gn
new file mode 100755
index 0000000..947ebac
--- /dev/null
+++ b/rtkbt/code/bt/.gn
@@ -0,0 +1,22 @@
+#
+#  Copyright (C) 2015 Google, Inc.
+#
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at:
+#
+#  http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+#
+
+# This file is used by the GN meta build system to find the root of the source
+# tree and to set startup options. For documentation on the values set in this
+# file, run "gn help dotfile" at the command line.
+
+buildconfig = "//build/config/BUILDCONFIG.gn"
+secondary_source = "//build/secondary/"
diff --git a/rtkbt/code/bt/Android.mk b/rtkbt/code/bt/Android.mk
new file mode 100755
index 0000000..8521603
--- /dev/null
+++ b/rtkbt/code/bt/Android.mk
@@ -0,0 +1,55 @@
+ifeq ($(BOARD_HAVE_BLUETOOTH_RTK), true)
+LOCAL_PATH := $(call my-dir)
+
+rtkbt_bdroid_C_INCLUDES := $(LOCAL_PATH)/realtek/include
+rtkbt_bdroid_C_INCLUDES += $(LOCAL_PATH)/bta/hh
+rtkbt_bdroid_C_INCLUDES += $(LOCAL_PATH)/bta/dm
+rtkbt_bdroid_CFLAGS := -DBLUETOOTH_RTK
+rtkbt_bdroid_CFLAGS += -DBLUETOOTH_RTK_API
+rtkbt_bdroid_CFLAGS += -DBLUETOOTH_RTK_COEX
+bluetooth_CFLAGS += -DHAS_BDROID_BUILDCFG $(rtkbt_bdroid_CFLAGS)
+bluetooth_C_INCLUDES := $(rtkbt_bdroid_C_INCLUDES)
+
+ifneq ($(BOARD_BLUETOOTH_BDROID_HCILP_INCLUDED),)
+  bluetooth_CFLAGS += -DHCILP_INCLUDED=$(BOARD_BLUETOOTH_BDROID_HCILP_INCLUDED)
+endif
+
+ifneq ($(TARGET_BUILD_VARIANT),user)
+bluetooth_CFLAGS += -DBLUEDROID_DEBUG
+endif
+
+bluetooth_CFLAGS += -DEXPORT_SYMBOL="__attribute__((visibility(\"default\")))"
+
+#
+# Common C/C++ compiler flags.
+#
+# -Wno-gnu-variable-sized-type-not-at-end is needed, because struct BT_HDR
+#  is defined as a variable-size header in a struct.
+# -Wno-typedef-redefinition is needed because of the way the struct typedef
+#  is done in osi/include header files. This issue can be obsoleted by
+#  switching to C11 or C++.
+# -Wno-unused-parameter is needed, because there are too many unused
+#  parameters in all the code.
+#
+bluetooth_CFLAGS += \
+  -fvisibility=hidden \
+  -Wall \
+  -Wextra \
+  -Werror \
+  -Wno-gnu-variable-sized-type-not-at-end \
+  -Wno-typedef-redefinition \
+  -Wno-unused-parameter \
+  -UNDEBUG \
+  -DLOG_NDEBUG=1
+
+bluetooth_CONLYFLAGS += -std=c99
+bluetooth_CPPFLAGS :=
+
+include $(call all-subdir-makefiles)
+
+# Cleanup our locals
+bluetooth_C_INCLUDES :=
+bluetooth_CFLAGS :=
+bluetooth_CONLYFLAGS :=
+bluetooth_CPPFLAGS :=
+endif
diff --git a/rtkbt/code/bt/BUILD.gn b/rtkbt/code/bt/BUILD.gn
new file mode 100755
index 0000000..ffbe4ef
--- /dev/null
+++ b/rtkbt/code/bt/BUILD.gn
@@ -0,0 +1,42 @@
+#
+#  Copyright (C) 2015 Google, Inc.
+#
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at:
+#
+#  http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+#
+
+# This is the root build file for GN. GN will start processing by loading this
+# file, and recursively load all dependencies until all dependencies are either
+# resolved or known not to exist (which will cause the build to fail). So if
+# you add a new build file, there must be some path of dependencies from this
+# file to your new one or GN won't know about it.
+
+# This pulls in main/BUILD.gn and all of its dependencies.
+group("bluetooth") {
+  deps = [
+    "//main:bluetooth.default",
+    "//service:bluetoothtbd",
+    "//vendor_libs:vendor-libs",
+  ]
+}
+
+group("bluetooth_tests") {
+  testonly = true
+
+  deps = [
+    "//test/suite:net_test_bluetooth",
+    "//btcore:net_test_btcore",
+    "//hci:net_test_hci",
+    "//osi:net_test_osi",
+    "//device:net_test_device",
+  ]
+}
diff --git a/rtkbt/code/bt/CleanSpec.mk b/rtkbt/code/bt/CleanSpec.mk
new file mode 100755
index 0000000..518119b
--- /dev/null
+++ b/rtkbt/code/bt/CleanSpec.mk
@@ -0,0 +1,53 @@
+# Copyright (C) 2007 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+# If you don't need to do a full clean build but would like to touch
+# a file or delete some intermediate files, add a clean step to the end
+# of the list.  These steps will only be run once, if they haven't been
+# run before.
+#
+# E.g.:
+#     $(call add-clean-step, touch -c external/sqlite/sqlite3.h)
+#     $(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/STATIC_LIBRARIES/libz_intermediates)
+#
+# Always use "touch -c" and "rm -f" or "rm -rf" to gracefully deal with
+# files that are missing or have been moved.
+#
+# Use $(PRODUCT_OUT) to get to the "out/target/product/blah/" directory.
+# Use $(OUT_DIR) to refer to the "out" directory.
+#
+# If you need to re-do something that's already mentioned, just copy
+# the command and add it to the bottom of the list.  E.g., if a change
+# that you made last week required touching a file and a change you
+# made today requires touching the same file, just copy the old
+# touch step and add it to the end of the list.
+#
+# ************************************************
+# NEWER CLEAN STEPS MUST BE AT THE END OF THE LIST
+# ************************************************
+
+# For example:
+#$(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/APPS/AndroidTests_intermediates)
+#$(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/JAVA_LIBRARIES/core_intermediates)
+#$(call add-clean-step, find $(OUT_DIR) -type f -name "IGTalkSession*" -print0 | xargs -0 rm -f)
+#$(call add-clean-step, rm -rf $(PRODUCT_OUT)/data/*)
+
+# Start of Clean Step list:
+$(call add-clean-step, find $(OUT_DIR) -type f -iname "*blue*" -print0 | xargs -0 rm -f)
+$(call add-clean-step, find $(OUT_DIR) -type f -iname "*bdroid*" -print0 | xargs -0 rm -f)
+
+# ************************************************
+# NEWER CLEAN STEPS MUST BE AT THE END OF THE LIST
+# ************************************************
diff --git a/rtkbt/code/bt/MODULE_LICENSE_APACHE2 b/rtkbt/code/bt/MODULE_LICENSE_APACHE2
new file mode 100755
index 0000000..e69de29
diff --git a/rtkbt/code/bt/NOTICE b/rtkbt/code/bt/NOTICE
new file mode 100755
index 0000000..d645695
--- /dev/null
+++ b/rtkbt/code/bt/NOTICE
@@ -0,0 +1,202 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
+      publicly display, publicly perform, sublicense, and distribute the
+      Work and such Derivative Works in Source or Object form.
+
+   3. Grant of Patent License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      (except as stated in this section) patent license to make, have made,
+      use, offer to sell, sell, import, and otherwise transfer the Work,
+      where such license applies only to those patent claims licensable
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+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
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diff --git a/rtkbt/code/bt/README.md b/rtkbt/code/bt/README.md
new file mode 100755
index 0000000..dd89451
--- /dev/null
+++ b/rtkbt/code/bt/README.md
@@ -0,0 +1,128 @@
+# Fluoride Bluetooth stack
+
+## Building and running on AOSP
+Just build AOSP - Fluoride is there by default.
+
+## Building and running on Linux
+
+Instructions for Ubuntu, tested on 15.10 with GCC 5.2.1.
+
+### Install required libraries
+
+```sh
+sudo apt-get install libevent-dev
+```
+
+### Install build tools
+
+  - Install [ninja](https://ninja-build.org/) build system
+
+```sh
+sudo apt-get install ninja-build
+```
+
+or download binary from https://github.com/ninja-build/ninja/releases
+
+  - Install [gn](https://chromium.googlesource.com/chromium/src/tools/gn/) -  meta-build system that generates NinjaBuild files.
+
+Get sha1 of current version from [here](
+https://chromium.googlesource.com/chromium/buildtools/+/master/linux64/gn.sha1) and then download corresponding executable:
+
+```sh
+wget -O gn http://storage.googleapis.com/chromium-gn/<gn.sha1>
+```
+
+i.e. if sha1 is "3491f6687bd9f19946035700eb84ce3eed18c5fa" (value from 24 Feb 2016) do
+
+```sh
+wget -O gn http://storage.googleapis.com/chromium-gn/3491f6687bd9f19946035700eb84ce3eed18c5fa
+```
+
+Then make binary executable and put it on your PATH, i.e.:
+
+```sh
+chmod a+x ./gn
+sudo mv ./gn /usr/bin
+```
+
+### Download source
+
+```sh
+mkdir ~/fluoride
+cd ~/fluoride
+git clone https://android.googlesource.com/platform/system/bt
+```
+
+Then fetch third party dependencies:
+
+```sh
+cd ~/fluoride/bt
+mkdir third_party
+git clone https://github.com/google/googletest.git
+git clone https://android.googlesource.com/platform/external/libchrome
+git clone https://android.googlesource.com/platform/external/modp_b64
+git clone https://android.googlesource.com/platform/external/tinyxml2
+```
+
+And third party dependencies of third party dependencies:
+
+```sh
+cd fluoride/bt/third_party/libchrome/base/third_party
+mkdir valgrind
+cd valgrind
+curl https://chromium.googlesource.com/chromium/src/base/+/master/third_party/valgrind/valgrind.h?format=TEXT | base64 -d > valgrind.h
+curl https://chromium.googlesource.com/chromium/src/base/+/master/third_party/valgrind/memcheck.h?format=TEXT | base64 -d > memcheck.h
+```
+
+Fluoride currently has dependency on some internal Android projects, which also need to be downloaded. This will be removed in future:
+
+```sh
+cd ~/fluoride
+git clone https://android.googlesource.com/platform/system/core
+git clone https://android.googlesource.com/platform/hardware/libhardware
+git clone https://android.googlesource.com/platform/system/media
+```
+
+### Configure your build
+We need to configure some paths to make the build successful. Run:
+
+```sh
+cd ~/fluoride/bt
+gn args out/Default
+```
+
+This will prompt you to fill the contents of your "out/Default/args.gn" file. Make it look like below. Replace "/home/job" with path to your home directory, and don't use "~" in build arguments:
+
+```sh
+# Build arguments go here. Examples:
+#   is_component_build = true
+#   is_debug = false
+# See "gn args <out_dir> --list" for available build arguments.
+
+libhw_include_path = "/home/job/fluoride/libhardware/include"
+core_include_path = "/home/job/fluoride/core/include"
+audio_include_path = "/home/job/fluoride/media/audio/include"
+```
+
+Then generate your build files by calling
+
+```sh
+cd ~/fluoride/bt
+gn gen out/Default
+```
+
+### Build
+
+```sh
+cd ~/fluoride/bt
+ninja -C out/Default all
+```
+
+This will build all targets (the shared library, executables, tests, etc) and put them in out/Default. To build an individual target, replace "all" with the target of your choice, e.g. ```ninja -C out/Default net_test_osi```.
+
+### Run
+
+```sh
+cd ~/fluoride/bt/out/Default
+LD_LIBRARY_PATH=./ ./bluetoothtbd -create-ipc-socket=fluoride
+```
diff --git a/rtkbt/code/bt/audio_a2dp_hw/Android.mk.disabled b/rtkbt/code/bt/audio_a2dp_hw/Android.mk.disabled
new file mode 100755
index 0000000..0dc1388
--- /dev/null
+++ b/rtkbt/code/bt/audio_a2dp_hw/Android.mk.disabled
@@ -0,0 +1,27 @@
+LOCAL_PATH := $(call my-dir)
+
+# Audio A2DP shared library for target
+# ========================================================
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES := \
+	audio_a2dp_hw.c
+
+LOCAL_C_INCLUDES += \
+	. \
+	$(LOCAL_PATH)/../ \
+	$(LOCAL_PATH)/../utils/include
+
+LOCAL_MODULE := audio.a2dp.default
+LOCAL_MODULE_RELATIVE_PATH := hw
+
+LOCAL_SHARED_LIBRARIES := liblog
+LOCAL_STATIC_LIBRARIES := libosi
+
+LOCAL_MODULE_TAGS := optional
+
+LOCAL_CFLAGS += $(bluetooth_CFLAGS)
+LOCAL_CONLYFLAGS += $(bluetooth_CONLYFLAGS)
+LOCAL_CPPFLAGS += $(bluetooth_CPPFLAGS)
+
+include $(BUILD_SHARED_LIBRARY)
diff --git a/rtkbt/code/bt/audio_a2dp_hw/BUILD.gn b/rtkbt/code/bt/audio_a2dp_hw/BUILD.gn
new file mode 100755
index 0000000..4f252c4
--- /dev/null
+++ b/rtkbt/code/bt/audio_a2dp_hw/BUILD.gn
@@ -0,0 +1,27 @@
+#
+#  Copyright (C) 2015 Google, Inc.
+#
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at:
+#
+#  http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+#
+
+shared_library("audio.a2dp.default") {
+  sources = [
+    "audio_a2dp_hw.c",
+  ]
+
+  include_dirs = [
+    "include",
+    "//",
+    "//utils/include",
+  ]
+}
diff --git a/rtkbt/code/bt/audio_a2dp_hw/audio_a2dp_hw.c b/rtkbt/code/bt/audio_a2dp_hw/audio_a2dp_hw.c
new file mode 100755
index 0000000..20c7335
--- /dev/null
+++ b/rtkbt/code/bt/audio_a2dp_hw/audio_a2dp_hw.c
@@ -0,0 +1,1462 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/*****************************************************************************
+ *
+ *  Filename:      audio_a2dp_hw.c
+ *
+ *  Description:   Implements hal for bluedroid a2dp audio device
+ *
+ *****************************************************************************/
+
+#define LOG_TAG "bt_a2dp_hw"
+
+#include <errno.h>
+#include <fcntl.h>
+#include <inttypes.h>
+#include <pthread.h>
+#include <stdint.h>
+#include <sys/errno.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <sys/un.h>
+#include <unistd.h>
+
+#include <hardware/audio.h>
+#include <hardware/hardware.h>
+#include <system/audio.h>
+
+#include "audio_a2dp_hw.h"
+#include "bt_utils.h"
+#include "osi/include/hash_map.h"
+#include "osi/include/hash_map_utils.h"
+#include "osi/include/log.h"
+#include "osi/include/osi.h"
+#include "osi/include/socket_utils/sockets.h"
+
+/*****************************************************************************
+**  Constants & Macros
+******************************************************************************/
+
+#define CTRL_CHAN_RETRY_COUNT 3
+#define USEC_PER_SEC 1000000L
+#define SOCK_SEND_TIMEOUT_MS 2000  /* Timeout for sending */
+#define SOCK_RECV_TIMEOUT_MS 5000  /* Timeout for receiving */
+
+// set WRITE_POLL_MS to 0 for blocking sockets, nonzero for polled non-blocking sockets
+#define WRITE_POLL_MS 20
+
+#define CASE_RETURN_STR(const) case const: return #const;
+
+#define FNLOG()             LOG_VERBOSE(LOG_TAG, "%s", __FUNCTION__);
+#define DEBUG(fmt, ...)     LOG_VERBOSE(LOG_TAG, "%s: " fmt,__FUNCTION__, ## __VA_ARGS__)
+#define INFO(fmt, ...)      LOG_INFO(LOG_TAG, "%s: " fmt,__FUNCTION__, ## __VA_ARGS__)
+#define WARN(fmt, ...)      LOG_WARN(LOG_TAG, "%s: " fmt,__FUNCTION__, ## __VA_ARGS__)
+#define ERROR(fmt, ...)     LOG_ERROR(LOG_TAG, "%s: " fmt,__FUNCTION__, ## __VA_ARGS__)
+
+#define ASSERTC(cond, msg, val) if (!(cond)) {ERROR("### ASSERT : %s line %d %s (%d) ###", __FILE__, __LINE__, msg, val);}
+
+/*****************************************************************************
+**  Local type definitions
+******************************************************************************/
+
+typedef enum {
+    AUDIO_A2DP_STATE_STARTING,
+    AUDIO_A2DP_STATE_STARTED,
+    AUDIO_A2DP_STATE_STOPPING,
+    AUDIO_A2DP_STATE_STOPPED,
+    AUDIO_A2DP_STATE_SUSPENDED, /* need explicit set param call to resume (suspend=false) */
+    AUDIO_A2DP_STATE_STANDBY    /* allows write to autoresume */
+} a2dp_state_t;
+
+struct a2dp_stream_in;
+struct a2dp_stream_out;
+
+struct a2dp_audio_device {
+    struct audio_hw_device device;
+    struct a2dp_stream_in  *input;
+    struct a2dp_stream_out *output;
+};
+
+struct a2dp_config {
+    uint32_t                rate;
+    uint32_t                channel_flags;
+    int                     format;
+};
+
+/* move ctrl_fd outside output stream and keep open until HAL unloaded ? */
+
+struct a2dp_stream_common {
+    pthread_mutex_t         lock;
+    int                     ctrl_fd;
+    int                     audio_fd;
+    size_t                  buffer_sz;
+    struct a2dp_config      cfg;
+    a2dp_state_t            state;
+};
+
+struct a2dp_stream_out {
+    struct audio_stream_out stream;
+    struct a2dp_stream_common common;
+    uint64_t frames_presented; // frames written, never reset
+    uint64_t frames_rendered;  // frames written, reset on standby
+};
+
+struct a2dp_stream_in {
+    struct audio_stream_in  stream;
+    struct a2dp_stream_common common;
+};
+
+/*****************************************************************************
+**  Static variables
+******************************************************************************/
+
+/*****************************************************************************
+**  Static functions
+******************************************************************************/
+
+static size_t out_get_buffer_size(const struct audio_stream *stream);
+
+/*****************************************************************************
+**  Externs
+******************************************************************************/
+
+/*****************************************************************************
+**  Functions
+******************************************************************************/
+/* Function used only in debug mode */
+static const char* dump_a2dp_ctrl_event(char event) __attribute__ ((unused));
+static void a2dp_open_ctrl_path(struct a2dp_stream_common *common);
+
+/*****************************************************************************
+**   Miscellaneous helper functions
+******************************************************************************/
+
+static const char* dump_a2dp_ctrl_event(char event)
+{
+    switch(event)
+    {
+        CASE_RETURN_STR(A2DP_CTRL_CMD_NONE)
+        CASE_RETURN_STR(A2DP_CTRL_CMD_CHECK_READY)
+        CASE_RETURN_STR(A2DP_CTRL_CMD_START)
+        CASE_RETURN_STR(A2DP_CTRL_CMD_STOP)
+        CASE_RETURN_STR(A2DP_CTRL_CMD_SUSPEND)
+        default:
+            return "UNKNOWN MSG ID";
+    }
+}
+
+/* logs timestamp with microsec precision
+   pprev is optional in case a dedicated diff is required */
+static void ts_log(char *tag, int val, struct timespec *pprev_opt)
+{
+    struct timespec now;
+    static struct timespec prev = {0,0};
+    unsigned long long now_us;
+    unsigned long long diff_us;
+    UNUSED(tag);
+    UNUSED(val);
+
+    clock_gettime(CLOCK_MONOTONIC, &now);
+
+    now_us = now.tv_sec*USEC_PER_SEC + now.tv_nsec/1000;
+
+    if (pprev_opt)
+    {
+        diff_us = (now.tv_sec - prev.tv_sec) * USEC_PER_SEC + (now.tv_nsec - prev.tv_nsec)/1000;
+        *pprev_opt = now;
+        DEBUG("[%s] ts %08lld, *diff %08lld, val %d", tag, now_us, diff_us, val);
+    }
+    else
+    {
+        diff_us = (now.tv_sec - prev.tv_sec) * USEC_PER_SEC + (now.tv_nsec - prev.tv_nsec)/1000;
+        prev = now;
+        DEBUG("[%s] ts %08lld, diff %08lld, val %d", tag, now_us, diff_us, val);
+    }
+}
+
+static int calc_audiotime(struct a2dp_config cfg, int bytes)
+{
+    int chan_count = popcount(cfg.channel_flags);
+
+    ASSERTC(cfg.format == AUDIO_FORMAT_PCM_16_BIT,
+            "unsupported sample sz", cfg.format);
+
+    return (int)(((int64_t)bytes * (1000000 / (chan_count * 2))) / cfg.rate);
+}
+
+/*****************************************************************************
+**
+**   bluedroid stack adaptation
+**
+*****************************************************************************/
+
+static int skt_connect(char *path, size_t buffer_sz)
+{
+    int ret;
+    int skt_fd;
+    int len;
+
+    INFO("connect to %s (sz %zu)", path, buffer_sz);
+
+    skt_fd = socket(AF_LOCAL, SOCK_STREAM, 0);
+
+    if(osi_socket_local_client_connect(skt_fd, path,
+            ANDROID_SOCKET_NAMESPACE_ABSTRACT, SOCK_STREAM) < 0)
+    {
+        ERROR("failed to connect (%s)", strerror(errno));
+        close(skt_fd);
+        return -1;
+    }
+
+    len = buffer_sz;
+    ret = setsockopt(skt_fd, SOL_SOCKET, SO_SNDBUF, (char*)&len, (int)sizeof(len));
+    if (ret < 0)
+        ERROR("setsockopt failed (%s)", strerror(errno));
+
+    ret = setsockopt(skt_fd, SOL_SOCKET, SO_RCVBUF, (char*)&len, (int)sizeof(len));
+    if (ret < 0)
+        ERROR("setsockopt failed (%s)", strerror(errno));
+
+    /* Socket send/receive timeout value */
+    struct timeval tv;
+    tv.tv_sec = SOCK_SEND_TIMEOUT_MS / 1000;
+    tv.tv_usec = (SOCK_SEND_TIMEOUT_MS % 1000) * 1000;
+
+    ret = setsockopt(skt_fd, SOL_SOCKET, SO_SNDTIMEO, &tv, sizeof(tv));
+    if (ret < 0)
+        ERROR("setsockopt failed (%s)", strerror(errno));
+
+    tv.tv_sec = SOCK_RECV_TIMEOUT_MS / 1000;
+    tv.tv_usec = (SOCK_RECV_TIMEOUT_MS % 1000) * 1000;
+
+    ret = setsockopt(skt_fd, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv));
+    if (ret < 0)
+        ERROR("setsockopt failed (%s)", strerror(errno));
+
+    INFO("connected to stack fd = %d", skt_fd);
+
+    return skt_fd;
+}
+
+static int skt_read(int fd, void *p, size_t len)
+{
+    ssize_t read;
+
+    FNLOG();
+
+    ts_log("skt_read recv", len, NULL);
+
+    OSI_NO_INTR(read = recv(fd, p, len, MSG_NOSIGNAL));
+    if (read == -1)
+        ERROR("read failed with errno=%d\n", errno);
+
+    return (int)read;
+}
+
+static int skt_write(int fd, const void *p, size_t len)
+{
+    ssize_t sent;
+    FNLOG();
+
+    ts_log("skt_write", len, NULL);
+
+    if (WRITE_POLL_MS == 0) {
+        // do not poll, use blocking send
+        OSI_NO_INTR(sent = send(fd, p, len, MSG_NOSIGNAL));
+        if (sent == -1)
+            ERROR("write failed with error(%s)", strerror(errno));
+
+        return (int)sent;
+    }
+
+    // use non-blocking send, poll
+    int ms_timeout = SOCK_SEND_TIMEOUT_MS;
+    size_t count = 0;
+    while (count < len) {
+        OSI_NO_INTR(sent = send(fd, p, len - count, MSG_NOSIGNAL | MSG_DONTWAIT));
+        if (sent == -1) {
+            if (errno != EAGAIN && errno != EWOULDBLOCK) {
+                ERROR("write failed with error(%s)", strerror(errno));
+                return -1;
+            }
+            if (ms_timeout >= WRITE_POLL_MS) {
+                usleep(WRITE_POLL_MS * 1000);
+                ms_timeout -= WRITE_POLL_MS;
+                continue;
+            }
+            WARN("write timeout exceeded, sent %zu bytes", count);
+            return -1;
+        }
+        count += sent;
+        p = (const uint8_t *)p + sent;
+    }
+    return (int)count;
+}
+
+static int skt_disconnect(int fd)
+{
+    INFO("fd %d", fd);
+
+    if (fd != AUDIO_SKT_DISCONNECTED)
+    {
+        shutdown(fd, SHUT_RDWR);
+        close(fd);
+    }
+    return 0;
+}
+
+
+
+/*****************************************************************************
+**
+**  AUDIO CONTROL PATH
+**
+*****************************************************************************/
+
+static int a2dp_ctrl_receive(struct a2dp_stream_common *common, void* buffer, int length)
+{
+    ssize_t ret;
+    int i;
+
+    for (i = 0;; i++) {
+        OSI_NO_INTR(ret = recv(common->ctrl_fd, buffer, length, MSG_NOSIGNAL));
+        if (ret > 0) {
+            break;
+        }
+        if (ret == 0) {
+            ERROR("ack failed: peer closed");
+            break;
+        }
+        if (errno != EWOULDBLOCK && errno != EAGAIN) {
+            ERROR("ack failed: error(%s)", strerror(errno));
+            break;
+        }
+        if (i == (CTRL_CHAN_RETRY_COUNT - 1)) {
+            ERROR("ack failed: max retry count");
+            break;
+        }
+        INFO("ack failed (%s), retrying", strerror(errno));
+    }
+    if (ret <= 0) {
+        skt_disconnect(common->ctrl_fd);
+        common->ctrl_fd = AUDIO_SKT_DISCONNECTED;
+    }
+    return ret;
+}
+
+static int a2dp_command(struct a2dp_stream_common *common, char cmd)
+{
+    char ack;
+
+    DEBUG("A2DP COMMAND %s", dump_a2dp_ctrl_event(cmd));
+
+    if (common->ctrl_fd == AUDIO_SKT_DISCONNECTED) {
+        INFO("recovering from previous error");
+        a2dp_open_ctrl_path(common);
+        if (common->ctrl_fd == AUDIO_SKT_DISCONNECTED) {
+            ERROR("failure to open ctrl path");
+            return -1;
+        }
+    }
+
+    /* send command */
+    ssize_t sent;
+    OSI_NO_INTR(sent = send(common->ctrl_fd, &cmd, 1, MSG_NOSIGNAL));
+    if (sent == -1)
+    {
+        ERROR("cmd failed (%s)", strerror(errno));
+        skt_disconnect(common->ctrl_fd);
+        common->ctrl_fd = AUDIO_SKT_DISCONNECTED;
+        return -1;
+    }
+
+    /* wait for ack byte */
+    if (a2dp_ctrl_receive(common, &ack, 1) < 0) {
+        ERROR("A2DP COMMAND %s: no ACK", dump_a2dp_ctrl_event(cmd));
+        return -1;
+    }
+
+    DEBUG("A2DP COMMAND %s DONE STATUS %d", dump_a2dp_ctrl_event(cmd), ack);
+
+    if (ack == A2DP_CTRL_ACK_INCALL_FAILURE)
+        return ack;
+    if (ack != A2DP_CTRL_ACK_SUCCESS) {
+        ERROR("A2DP COMMAND %s error %d", dump_a2dp_ctrl_event(cmd), ack);
+        return -1;
+    }
+
+    return 0;
+}
+
+static int check_a2dp_ready(struct a2dp_stream_common *common)
+{
+    if (a2dp_command(common, A2DP_CTRL_CMD_CHECK_READY) < 0)
+    {
+        ERROR("check a2dp ready failed");
+        return -1;
+    }
+    return 0;
+}
+
+static int a2dp_read_audio_config(struct a2dp_stream_common *common)
+{
+    uint32_t sample_rate;
+    uint8_t channel_count;
+
+    if (a2dp_command(common, A2DP_CTRL_GET_AUDIO_CONFIG) < 0)
+    {
+        ERROR("check a2dp ready failed");
+        return -1;
+    }
+
+    if (a2dp_ctrl_receive(common, &sample_rate, 4) < 0)
+        return -1;
+    if (a2dp_ctrl_receive(common, &channel_count, 1) < 0)
+        return -1;
+
+    common->cfg.channel_flags = (channel_count == 1 ? AUDIO_CHANNEL_IN_MONO : AUDIO_CHANNEL_IN_STEREO);
+    common->cfg.format = AUDIO_STREAM_DEFAULT_FORMAT;
+    common->cfg.rate = sample_rate;
+
+    INFO("got config %d %d", common->cfg.format, common->cfg.rate);
+
+    return 0;
+}
+
+static void a2dp_open_ctrl_path(struct a2dp_stream_common *common)
+{
+    int i;
+
+    /* retry logic to catch any timing variations on control channel */
+    for (i = 0; i < CTRL_CHAN_RETRY_COUNT; i++)
+    {
+        /* connect control channel if not already connected */
+        if ((common->ctrl_fd = skt_connect(A2DP_CTRL_PATH, common->buffer_sz)) > 0)
+        {
+            /* success, now check if stack is ready */
+            if (check_a2dp_ready(common) == 0)
+                break;
+
+            ERROR("error : a2dp not ready, wait 250 ms and retry");
+            usleep(250000);
+            skt_disconnect(common->ctrl_fd);
+            common->ctrl_fd = AUDIO_SKT_DISCONNECTED;
+        }
+
+        /* ctrl channel not ready, wait a bit */
+        usleep(250000);
+    }
+}
+
+/*****************************************************************************
+**
+** AUDIO DATA PATH
+**
+*****************************************************************************/
+
+static void a2dp_stream_common_init(struct a2dp_stream_common *common)
+{
+    pthread_mutexattr_t lock_attr;
+
+    FNLOG();
+
+    pthread_mutexattr_init(&lock_attr);
+    pthread_mutexattr_settype(&lock_attr, PTHREAD_MUTEX_RECURSIVE);
+    pthread_mutex_init(&common->lock, &lock_attr);
+
+    common->ctrl_fd = AUDIO_SKT_DISCONNECTED;
+    common->audio_fd = AUDIO_SKT_DISCONNECTED;
+    common->state = AUDIO_A2DP_STATE_STOPPED;
+
+    /* manages max capacity of socket pipe */
+    common->buffer_sz = AUDIO_STREAM_OUTPUT_BUFFER_SZ;
+}
+
+static int start_audio_datapath(struct a2dp_stream_common *common)
+{
+    INFO("state %d", common->state);
+
+    int oldstate = common->state;
+    common->state = AUDIO_A2DP_STATE_STARTING;
+
+    int a2dp_status = a2dp_command(common, A2DP_CTRL_CMD_START);
+    if (a2dp_status < 0)
+    {
+        ERROR("Audiopath start failed (status %d)", a2dp_status);
+        goto error;
+    }
+    else if (a2dp_status == A2DP_CTRL_ACK_INCALL_FAILURE)
+    {
+        ERROR("Audiopath start failed - in call, move to suspended");
+        goto error;
+    }
+
+    /* connect socket if not yet connected */
+    if (common->audio_fd == AUDIO_SKT_DISCONNECTED)
+    {
+        common->audio_fd = skt_connect(A2DP_DATA_PATH, common->buffer_sz);
+        if (common->audio_fd < 0)
+        {
+            ERROR("Audiopath start failed - error opening data socket");
+            goto error;
+        }
+    }
+    common->state = AUDIO_A2DP_STATE_STARTED;
+    return 0;
+
+error:
+    common->state = oldstate;
+    return -1;
+}
+
+static int stop_audio_datapath(struct a2dp_stream_common *common)
+{
+    int oldstate = common->state;
+
+    INFO("state %d", common->state);
+
+    /* prevent any stray output writes from autostarting the stream
+       while stopping audiopath */
+    common->state = AUDIO_A2DP_STATE_STOPPING;
+
+    if (a2dp_command(common, A2DP_CTRL_CMD_STOP) < 0)
+    {
+        ERROR("audiopath stop failed");
+        common->state = oldstate;
+        return -1;
+    }
+
+    common->state = AUDIO_A2DP_STATE_STOPPED;
+
+    /* disconnect audio path */
+    skt_disconnect(common->audio_fd);
+    common->audio_fd = AUDIO_SKT_DISCONNECTED;
+
+    return 0;
+}
+
+static int suspend_audio_datapath(struct a2dp_stream_common *common, bool standby)
+{
+    INFO("state %d", common->state);
+
+    if (common->state == AUDIO_A2DP_STATE_STOPPING)
+        return -1;
+
+    if (a2dp_command(common, A2DP_CTRL_CMD_SUSPEND) < 0)
+        return -1;
+
+    if (standby)
+        common->state = AUDIO_A2DP_STATE_STANDBY;
+    else
+        common->state = AUDIO_A2DP_STATE_SUSPENDED;
+
+    /* disconnect audio path */
+    skt_disconnect(common->audio_fd);
+
+    common->audio_fd = AUDIO_SKT_DISCONNECTED;
+
+    return 0;
+}
+
+
+/*****************************************************************************
+**
+**  audio output callbacks
+**
+*****************************************************************************/
+
+static ssize_t out_write(struct audio_stream_out *stream, const void* buffer,
+                         size_t bytes)
+{
+    struct a2dp_stream_out *out = (struct a2dp_stream_out *)stream;
+    int sent;
+    int us_delay;
+
+    DEBUG("write %zu bytes (fd %d)", bytes, out->common.audio_fd);
+
+    pthread_mutex_lock(&out->common.lock);
+    if (out->common.state == AUDIO_A2DP_STATE_SUSPENDED ||
+            out->common.state == AUDIO_A2DP_STATE_STOPPING) {
+        DEBUG("stream suspended or closing");
+        goto error;
+    }
+
+    /* only allow autostarting if we are in stopped or standby */
+    if ((out->common.state == AUDIO_A2DP_STATE_STOPPED) ||
+        (out->common.state == AUDIO_A2DP_STATE_STANDBY))
+    {
+        if (start_audio_datapath(&out->common) < 0)
+        {
+            goto error;
+        }
+    }
+    else if (out->common.state != AUDIO_A2DP_STATE_STARTED)
+    {
+        ERROR("stream not in stopped or standby");
+        goto error;
+    }
+
+    pthread_mutex_unlock(&out->common.lock);
+    sent = skt_write(out->common.audio_fd, buffer,  bytes);
+    pthread_mutex_lock(&out->common.lock);
+
+    if (sent == -1) {
+        skt_disconnect(out->common.audio_fd);
+        out->common.audio_fd = AUDIO_SKT_DISCONNECTED;
+        if ((out->common.state != AUDIO_A2DP_STATE_SUSPENDED) &&
+                (out->common.state != AUDIO_A2DP_STATE_STOPPING)) {
+            out->common.state = AUDIO_A2DP_STATE_STOPPED;
+        } else {
+            ERROR("write failed : stream suspended, avoid resetting state");
+        }
+        goto error;
+    }
+
+    const size_t frames = bytes / audio_stream_out_frame_size(stream);
+    out->frames_rendered += frames;
+    out->frames_presented += frames;
+    pthread_mutex_unlock(&out->common.lock);
+    return bytes;
+
+error:
+    pthread_mutex_unlock(&out->common.lock);
+    us_delay = calc_audiotime(out->common.cfg, bytes);
+
+    DEBUG("emulate a2dp write delay (%d us)", us_delay);
+
+    usleep(us_delay);
+    return bytes;
+}
+
+
+static uint32_t out_get_sample_rate(const struct audio_stream *stream)
+{
+    struct a2dp_stream_out *out = (struct a2dp_stream_out *)stream;
+
+    DEBUG("rate %" PRIu32,out->common.cfg.rate);
+
+    return out->common.cfg.rate;
+}
+
+static int out_set_sample_rate(struct audio_stream *stream, uint32_t rate)
+{
+    struct a2dp_stream_out *out = (struct a2dp_stream_out *)stream;
+
+    DEBUG("out_set_sample_rate : %" PRIu32, rate);
+
+    if (rate != AUDIO_STREAM_DEFAULT_RATE)
+    {
+        ERROR("only rate %d supported", AUDIO_STREAM_DEFAULT_RATE);
+        return -1;
+    }
+
+    out->common.cfg.rate = rate;
+
+    return 0;
+}
+
+static size_t out_get_buffer_size(const struct audio_stream *stream)
+{
+    struct a2dp_stream_out *out = (struct a2dp_stream_out *)stream;
+    // period_size is the AudioFlinger mixer buffer size.
+    const size_t period_size = out->common.buffer_sz / AUDIO_STREAM_OUTPUT_BUFFER_PERIODS;
+    const size_t mixer_unit_size = 16 /* frames */ * 4 /* framesize */;
+
+    DEBUG("socket buffer size: %zu  period size: %zu", out->common.buffer_sz, period_size);
+    if (period_size % mixer_unit_size != 0) {
+        ERROR("period size %zu not a multiple of %zu", period_size, mixer_unit_size);
+    }
+
+    return period_size;
+}
+
+static uint32_t out_get_channels(const struct audio_stream *stream)
+{
+    struct a2dp_stream_out *out = (struct a2dp_stream_out *)stream;
+
+    DEBUG("channels 0x%" PRIx32, out->common.cfg.channel_flags);
+
+    return out->common.cfg.channel_flags;
+}
+
+static audio_format_t out_get_format(const struct audio_stream *stream)
+{
+    struct a2dp_stream_out *out = (struct a2dp_stream_out *)stream;
+    DEBUG("format 0x%x", out->common.cfg.format);
+    return out->common.cfg.format;
+}
+
+static int out_set_format(struct audio_stream *stream, audio_format_t format)
+{
+    UNUSED(stream);
+    UNUSED(format);
+    DEBUG("setting format not yet supported (0x%x)", format);
+    return -ENOSYS;
+}
+
+static int out_standby(struct audio_stream *stream)
+{
+    struct a2dp_stream_out *out = (struct a2dp_stream_out *)stream;
+    int retVal = 0;
+
+    FNLOG();
+
+    pthread_mutex_lock(&out->common.lock);
+    // Do nothing in SUSPENDED state.
+    if (out->common.state != AUDIO_A2DP_STATE_SUSPENDED)
+        retVal = suspend_audio_datapath(&out->common, true);
+    out->frames_rendered = 0; // rendered is reset, presented is not
+    pthread_mutex_unlock (&out->common.lock);
+
+    return retVal;
+}
+
+static int out_dump(const struct audio_stream *stream, int fd)
+{
+    UNUSED(stream);
+    UNUSED(fd);
+    FNLOG();
+    return 0;
+}
+
+static int out_set_parameters(struct audio_stream *stream, const char *kvpairs)
+{
+    struct a2dp_stream_out *out = (struct a2dp_stream_out *)stream;
+
+    INFO("state %d", out->common.state);
+
+    hash_map_t *params = hash_map_utils_new_from_string_params(kvpairs);
+    int status = 0;
+
+    if (!params)
+      return status;
+
+    pthread_mutex_lock(&out->common.lock);
+
+    /* dump params */
+    hash_map_utils_dump_string_keys_string_values(params);
+
+    char *keyval = (char *)hash_map_get(params, "closing");
+
+    if (keyval && strcmp(keyval, "true") == 0)
+    {
+        DEBUG("stream closing, disallow any writes");
+        out->common.state = AUDIO_A2DP_STATE_STOPPING;
+    }
+
+    keyval = (char *)hash_map_get(params, "A2dpSuspended");
+
+    if (keyval && strcmp(keyval, "true") == 0)
+    {
+        if (out->common.state == AUDIO_A2DP_STATE_STARTED)
+            status = suspend_audio_datapath(&out->common, false);
+    }
+    else
+    {
+        /* Do not start the streaming automatically. If the phone was streaming
+         * prior to being suspended, the next out_write shall trigger the
+         * AVDTP start procedure */
+        if (out->common.state == AUDIO_A2DP_STATE_SUSPENDED)
+            out->common.state = AUDIO_A2DP_STATE_STANDBY;
+        /* Irrespective of the state, return 0 */
+    }
+
+    pthread_mutex_unlock(&out->common.lock);
+    hash_map_free(params);
+
+    return status;
+}
+
+static char * out_get_parameters(const struct audio_stream *stream, const char *keys)
+{
+    UNUSED(stream);
+    UNUSED(keys);
+    FNLOG();
+
+    /* add populating param here */
+
+    return strdup("");
+}
+
+static uint32_t out_get_latency(const struct audio_stream_out *stream)
+{
+    int latency_us;
+
+    struct a2dp_stream_out *out = (struct a2dp_stream_out *)stream;
+
+    FNLOG();
+
+    latency_us = ((out->common.buffer_sz * 1000 ) /
+                    audio_stream_out_frame_size(&out->stream) /
+                    out->common.cfg.rate) * 1000;
+
+
+    return (latency_us / 1000) + 200;
+}
+
+static int out_set_volume(struct audio_stream_out *stream, float left,
+                          float right)
+{
+    UNUSED(stream);
+    UNUSED(left);
+    UNUSED(right);
+
+    FNLOG();
+
+    /* volume controlled in audioflinger mixer (digital) */
+
+    return -ENOSYS;
+}
+
+static int out_get_presentation_position(const struct audio_stream_out *stream,
+                                         uint64_t *frames, struct timespec *timestamp)
+{
+    struct a2dp_stream_out *out = (struct a2dp_stream_out *)stream;
+
+    FNLOG();
+    if (stream == NULL || frames == NULL || timestamp == NULL)
+        return -EINVAL;
+
+    int ret = -EWOULDBLOCK;
+    pthread_mutex_lock(&out->common.lock);
+    uint64_t latency_frames = (uint64_t)out_get_latency(stream) * out->common.cfg.rate / 1000;
+    if (out->frames_presented >= latency_frames) {
+        *frames = out->frames_presented - latency_frames;
+        clock_gettime(CLOCK_MONOTONIC, timestamp); // could also be associated with out_write().
+        ret = 0;
+    }
+    pthread_mutex_unlock(&out->common.lock);
+    return ret;
+}
+
+static int out_get_render_position(const struct audio_stream_out *stream,
+                                   uint32_t *dsp_frames)
+{
+    struct a2dp_stream_out *out = (struct a2dp_stream_out *)stream;
+
+    FNLOG();
+    if (stream == NULL || dsp_frames == NULL)
+        return -EINVAL;
+
+    pthread_mutex_lock(&out->common.lock);
+    uint64_t latency_frames = (uint64_t)out_get_latency(stream) * out->common.cfg.rate / 1000;
+    if (out->frames_rendered >= latency_frames) {
+        *dsp_frames = (uint32_t)(out->frames_rendered - latency_frames);
+    } else {
+        *dsp_frames = 0;
+    }
+    pthread_mutex_unlock(&out->common.lock);
+    return 0;
+}
+
+static int out_add_audio_effect(const struct audio_stream *stream, effect_handle_t effect)
+{
+    UNUSED(stream);
+    UNUSED(effect);
+
+    FNLOG();
+    return 0;
+}
+
+static int out_remove_audio_effect(const struct audio_stream *stream, effect_handle_t effect)
+{
+    UNUSED(stream);
+    UNUSED(effect);
+
+    FNLOG();
+    return 0;
+}
+
+/*
+ * AUDIO INPUT STREAM
+ */
+
+static uint32_t in_get_sample_rate(const struct audio_stream *stream)
+{
+    struct a2dp_stream_in *in = (struct a2dp_stream_in *)stream;
+
+    FNLOG();
+    return in->common.cfg.rate;
+}
+
+static int in_set_sample_rate(struct audio_stream *stream, uint32_t rate)
+{
+    struct a2dp_stream_in *in = (struct a2dp_stream_in *)stream;
+
+    FNLOG();
+
+    if (in->common.cfg.rate > 0 && in->common.cfg.rate == rate)
+        return 0;
+    else
+        return -1;
+}
+
+static size_t in_get_buffer_size(const struct audio_stream *stream)
+{
+    UNUSED(stream);
+
+    FNLOG();
+    return 320;
+}
+
+static uint32_t in_get_channels(const struct audio_stream *stream)
+{
+    struct a2dp_stream_in *in = (struct a2dp_stream_in *)stream;
+
+    FNLOG();
+    return in->common.cfg.channel_flags;
+}
+
+static audio_format_t in_get_format(const struct audio_stream *stream)
+{
+    UNUSED(stream);
+
+    FNLOG();
+    return AUDIO_FORMAT_PCM_16_BIT;
+}
+
+static int in_set_format(struct audio_stream *stream, audio_format_t format)
+{
+    UNUSED(stream);
+    UNUSED(format);
+
+    FNLOG();
+    if (format == AUDIO_FORMAT_PCM_16_BIT)
+        return 0;
+    else
+        return -1;
+}
+
+static int in_standby(struct audio_stream *stream)
+{
+    UNUSED(stream);
+
+    FNLOG();
+    return 0;
+}
+
+static int in_dump(const struct audio_stream *stream, int fd)
+{
+    UNUSED(stream);
+    UNUSED(fd);
+
+    FNLOG();
+    return 0;
+}
+
+static int in_set_parameters(struct audio_stream *stream, const char *kvpairs)
+{
+    UNUSED(stream);
+    UNUSED(kvpairs);
+
+    FNLOG();
+    return 0;
+}
+
+static char * in_get_parameters(const struct audio_stream *stream,
+                                const char *keys)
+{
+    UNUSED(stream);
+    UNUSED(keys);
+
+    FNLOG();
+    return strdup("");
+}
+
+static int in_set_gain(struct audio_stream_in *stream, float gain)
+{
+    UNUSED(stream);
+    UNUSED(gain);
+
+    FNLOG();
+    return 0;
+}
+
+static ssize_t in_read(struct audio_stream_in *stream, void* buffer,
+                       size_t bytes)
+{
+    struct a2dp_stream_in *in = (struct a2dp_stream_in *)stream;
+    int read;
+    int us_delay;
+
+    DEBUG("read %zu bytes, state: %d", bytes, in->common.state);
+
+    pthread_mutex_lock(&in->common.lock);
+    if (in->common.state == AUDIO_A2DP_STATE_SUSPENDED ||
+            in->common.state == AUDIO_A2DP_STATE_STOPPING)
+    {
+        DEBUG("stream suspended");
+        goto error;
+    }
+
+    /* only allow autostarting if we are in stopped or standby */
+    if ((in->common.state == AUDIO_A2DP_STATE_STOPPED) ||
+        (in->common.state == AUDIO_A2DP_STATE_STANDBY))
+    {
+        if (start_audio_datapath(&in->common) < 0)
+        {
+            goto error;
+        }
+    }
+    else if (in->common.state != AUDIO_A2DP_STATE_STARTED)
+    {
+        ERROR("stream not in stopped or standby");
+        goto error;
+    }
+
+    pthread_mutex_unlock(&in->common.lock);
+    read = skt_read(in->common.audio_fd, buffer, bytes);
+    pthread_mutex_lock(&in->common.lock);
+    if (read == -1)
+    {
+        skt_disconnect(in->common.audio_fd);
+        in->common.audio_fd = AUDIO_SKT_DISCONNECTED;
+        if ((in->common.state != AUDIO_A2DP_STATE_SUSPENDED) &&
+                (in->common.state != AUDIO_A2DP_STATE_STOPPING)) {
+            in->common.state = AUDIO_A2DP_STATE_STOPPED;
+        } else {
+            ERROR("read failed : stream suspended, avoid resetting state");
+        }
+        goto error;
+    } else if (read == 0) {
+        DEBUG("read time out - return zeros");
+        memset(buffer, 0, bytes);
+        read = bytes;
+    }
+    pthread_mutex_unlock(&in->common.lock);
+
+    DEBUG("read %d bytes out of %zu bytes", read, bytes);
+    return read;
+
+error:
+    pthread_mutex_unlock(&in->common.lock);
+    memset(buffer, 0, bytes);
+    us_delay = calc_audiotime(in->common.cfg, bytes);
+    DEBUG("emulate a2dp read delay (%d us)", us_delay);
+
+    usleep(us_delay);
+    return bytes;
+}
+
+static uint32_t in_get_input_frames_lost(struct audio_stream_in *stream)
+{
+    UNUSED(stream);
+
+    FNLOG();
+    return 0;
+}
+
+static int in_add_audio_effect(const struct audio_stream *stream, effect_handle_t effect)
+{
+    UNUSED(stream);
+    UNUSED(effect);
+
+    FNLOG();
+    return 0;
+}
+
+static int in_remove_audio_effect(const struct audio_stream *stream, effect_handle_t effect)
+{
+    UNUSED(stream);
+    UNUSED(effect);
+
+    FNLOG();
+
+    return 0;
+}
+
+static int adev_open_output_stream(struct audio_hw_device *dev,
+                                   audio_io_handle_t handle,
+                                   audio_devices_t devices,
+                                   audio_output_flags_t flags,
+                                   struct audio_config *config,
+                                   struct audio_stream_out **stream_out,
+                                   const char *address)
+
+{
+    struct a2dp_audio_device *a2dp_dev = (struct a2dp_audio_device *)dev;
+    struct a2dp_stream_out *out;
+    int ret = 0;
+    UNUSED(address);
+    UNUSED(handle);
+    UNUSED(devices);
+    UNUSED(flags);
+
+    INFO("opening output");
+
+    out = (struct a2dp_stream_out *)calloc(1, sizeof(struct a2dp_stream_out));
+
+    if (!out)
+        return -ENOMEM;
+
+    out->stream.common.get_sample_rate = out_get_sample_rate;
+    out->stream.common.set_sample_rate = out_set_sample_rate;
+    out->stream.common.get_buffer_size = out_get_buffer_size;
+    out->stream.common.get_channels = out_get_channels;
+    out->stream.common.get_format = out_get_format;
+    out->stream.common.set_format = out_set_format;
+    out->stream.common.standby = out_standby;
+    out->stream.common.dump = out_dump;
+    out->stream.common.set_parameters = out_set_parameters;
+    out->stream.common.get_parameters = out_get_parameters;
+    out->stream.common.add_audio_effect = out_add_audio_effect;
+    out->stream.common.remove_audio_effect = out_remove_audio_effect;
+    out->stream.get_latency = out_get_latency;
+    out->stream.set_volume = out_set_volume;
+    out->stream.write = out_write;
+    out->stream.get_render_position = out_get_render_position;
+    out->stream.get_presentation_position = out_get_presentation_position;
+
+
+    /* initialize a2dp specifics */
+    a2dp_stream_common_init(&out->common);
+
+    out->common.cfg.channel_flags = AUDIO_STREAM_DEFAULT_CHANNEL_FLAG;
+    out->common.cfg.format = AUDIO_STREAM_DEFAULT_FORMAT;
+    out->common.cfg.rate = AUDIO_STREAM_DEFAULT_RATE;
+
+   /* set output config values */
+   if (config)
+   {
+      config->format = out_get_format((const struct audio_stream *)&out->stream);
+      config->sample_rate = out_get_sample_rate((const struct audio_stream *)&out->stream);
+      config->channel_mask = out_get_channels((const struct audio_stream *)&out->stream);
+   }
+    *stream_out = &out->stream;
+    a2dp_dev->output = out;
+
+    a2dp_open_ctrl_path(&out->common);
+    if (out->common.ctrl_fd == AUDIO_SKT_DISCONNECTED)
+    {
+        ERROR("ctrl socket failed to connect (%s)", strerror(errno));
+        ret = -1;
+        goto err_open;
+    }
+
+    DEBUG("success");
+    /* Delay to ensure Headset is in proper state when START is initiated
+       from DUT immediately after the connection due to ongoing music playback. */
+    usleep(250000);
+    return 0;
+
+err_open:
+    free(out);
+    *stream_out = NULL;
+    a2dp_dev->output = NULL;
+    ERROR("failed");
+    return ret;
+}
+
+static void adev_close_output_stream(struct audio_hw_device *dev,
+                                     struct audio_stream_out *stream)
+{
+    struct a2dp_audio_device *a2dp_dev = (struct a2dp_audio_device *)dev;
+    struct a2dp_stream_out *out = (struct a2dp_stream_out *)stream;
+
+    INFO("closing output (state %d)", out->common.state);
+
+    pthread_mutex_lock(&out->common.lock);
+    if ((out->common.state == AUDIO_A2DP_STATE_STARTED) ||
+            (out->common.state == AUDIO_A2DP_STATE_STOPPING)) {
+        stop_audio_datapath(&out->common);
+    }
+
+    skt_disconnect(out->common.ctrl_fd);
+    out->common.ctrl_fd = AUDIO_SKT_DISCONNECTED;
+    free(stream);
+    a2dp_dev->output = NULL;
+    pthread_mutex_unlock(&out->common.lock);
+
+    DEBUG("done");
+}
+
+static int adev_set_parameters(struct audio_hw_device *dev, const char *kvpairs)
+{
+    struct a2dp_audio_device *a2dp_dev = (struct a2dp_audio_device *)dev;
+    struct a2dp_stream_out *out = a2dp_dev->output;
+    int retval = 0;
+
+    if (out == NULL)
+        return retval;
+
+    INFO("state %d", out->common.state);
+
+    retval = out->stream.common.set_parameters((struct audio_stream *)out, kvpairs);
+
+    return retval;
+}
+
+static char * adev_get_parameters(const struct audio_hw_device *dev,
+                                  const char *keys)
+{
+    UNUSED(dev);
+
+    FNLOG();
+
+    hash_map_t *params = hash_map_utils_new_from_string_params(keys);
+    hash_map_utils_dump_string_keys_string_values(params);
+    hash_map_free(params);
+
+    return strdup("");
+}
+
+static int adev_init_check(const struct audio_hw_device *dev)
+{
+    UNUSED(dev);
+    FNLOG();
+
+    return 0;
+}
+
+static int adev_set_voice_volume(struct audio_hw_device *dev, float volume)
+{
+    UNUSED(dev);
+    UNUSED(volume);
+
+    FNLOG();
+
+    return -ENOSYS;
+}
+
+static int adev_set_master_volume(struct audio_hw_device *dev, float volume)
+{
+    UNUSED(dev);
+    UNUSED(volume);
+
+    FNLOG();
+
+    return -ENOSYS;
+}
+
+static int adev_set_mode(struct audio_hw_device *dev, int mode)
+{
+    UNUSED(dev);
+    UNUSED(mode);
+
+    FNLOG();
+
+    return 0;
+}
+
+static int adev_set_mic_mute(struct audio_hw_device *dev, bool state)
+{
+    UNUSED(dev);
+    UNUSED(state);
+
+    FNLOG();
+
+    return -ENOSYS;
+}
+
+static int adev_get_mic_mute(const struct audio_hw_device *dev, bool *state)
+{
+    UNUSED(dev);
+    UNUSED(state);
+
+    FNLOG();
+
+    return -ENOSYS;
+}
+
+static size_t adev_get_input_buffer_size(const struct audio_hw_device *dev,
+                                         const struct audio_config *config)
+{
+    UNUSED(dev);
+    UNUSED(config);
+
+    FNLOG();
+
+    return 320;
+}
+
+static int adev_open_input_stream(struct audio_hw_device *dev,
+                                  audio_io_handle_t handle,
+                                  audio_devices_t devices,
+                                  struct audio_config *config,
+                                  struct audio_stream_in **stream_in,
+                                  audio_input_flags_t flags,
+                                  const char *address,
+                                  audio_source_t source)
+{
+    struct a2dp_audio_device *a2dp_dev = (struct a2dp_audio_device *)dev;
+    struct a2dp_stream_in *in;
+    int ret;
+    UNUSED(address);
+    UNUSED(config);
+    UNUSED(devices);
+    UNUSED(flags);
+    UNUSED(handle);
+    UNUSED(source);
+
+    FNLOG();
+
+    in = (struct a2dp_stream_in *)calloc(1, sizeof(struct a2dp_stream_in));
+
+    if (!in)
+        return -ENOMEM;
+
+    in->stream.common.get_sample_rate = in_get_sample_rate;
+    in->stream.common.set_sample_rate = in_set_sample_rate;
+    in->stream.common.get_buffer_size = in_get_buffer_size;
+    in->stream.common.get_channels = in_get_channels;
+    in->stream.common.get_format = in_get_format;
+    in->stream.common.set_format = in_set_format;
+    in->stream.common.standby = in_standby;
+    in->stream.common.dump = in_dump;
+    in->stream.common.set_parameters = in_set_parameters;
+    in->stream.common.get_parameters = in_get_parameters;
+    in->stream.common.add_audio_effect = in_add_audio_effect;
+    in->stream.common.remove_audio_effect = in_remove_audio_effect;
+    in->stream.set_gain = in_set_gain;
+    in->stream.read = in_read;
+    in->stream.get_input_frames_lost = in_get_input_frames_lost;
+
+    /* initialize a2dp specifics */
+    a2dp_stream_common_init(&in->common);
+
+    *stream_in = &in->stream;
+    a2dp_dev->input = in;
+
+    a2dp_open_ctrl_path(&in->common);
+    if (in->common.ctrl_fd == AUDIO_SKT_DISCONNECTED)
+    {
+        ERROR("ctrl socket failed to connect (%s)", strerror(errno));
+        ret = -1;
+        goto err_open;
+    }
+
+    if (a2dp_read_audio_config(&in->common) < 0) {
+        ERROR("a2dp_read_audio_config failed (%s)", strerror(errno));
+        ret = -1;
+        goto err_open;
+    }
+
+    DEBUG("success");
+    return 0;
+
+err_open:
+    free(in);
+    *stream_in = NULL;
+    a2dp_dev->input = NULL;
+    ERROR("failed");
+    return ret;
+}
+
+static void adev_close_input_stream(struct audio_hw_device *dev,
+                                   struct audio_stream_in *stream)
+{
+    struct a2dp_audio_device *a2dp_dev = (struct a2dp_audio_device *)dev;
+    struct a2dp_stream_in* in = (struct a2dp_stream_in *)stream;
+    a2dp_state_t state = in->common.state;
+
+    INFO("closing input (state %d)", state);
+
+    if ((state == AUDIO_A2DP_STATE_STARTED) || (state == AUDIO_A2DP_STATE_STOPPING))
+        stop_audio_datapath(&in->common);
+
+    skt_disconnect(in->common.ctrl_fd);
+    in->common.ctrl_fd = AUDIO_SKT_DISCONNECTED;
+    free(stream);
+    a2dp_dev->input = NULL;
+
+    DEBUG("done");
+}
+
+static int adev_dump(const audio_hw_device_t *device, int fd)
+{
+    UNUSED(device);
+    UNUSED(fd);
+
+    FNLOG();
+
+    return 0;
+}
+
+static int adev_close(hw_device_t *device)
+{
+    FNLOG();
+
+    free(device);
+    return 0;
+}
+
+static int adev_open(const hw_module_t* module, const char* name,
+                     hw_device_t** device)
+{
+    struct a2dp_audio_device *adev;
+
+    INFO(" adev_open in A2dp_hw module");
+    FNLOG();
+
+    if (strcmp(name, AUDIO_HARDWARE_INTERFACE) != 0)
+    {
+        ERROR("interface %s not matching [%s]", name, AUDIO_HARDWARE_INTERFACE);
+        return -EINVAL;
+    }
+
+    adev = calloc(1, sizeof(struct a2dp_audio_device));
+
+    if (!adev)
+        return -ENOMEM;
+
+    adev->device.common.tag = HARDWARE_DEVICE_TAG;
+    adev->device.common.version = AUDIO_DEVICE_API_VERSION_2_0;
+    adev->device.common.module = (struct hw_module_t *) module;
+    adev->device.common.close = adev_close;
+
+    adev->device.init_check = adev_init_check;
+    adev->device.set_voice_volume = adev_set_voice_volume;
+    adev->device.set_master_volume = adev_set_master_volume;
+    adev->device.set_mode = adev_set_mode;
+    adev->device.set_mic_mute = adev_set_mic_mute;
+    adev->device.get_mic_mute = adev_get_mic_mute;
+    adev->device.set_parameters = adev_set_parameters;
+    adev->device.get_parameters = adev_get_parameters;
+    adev->device.get_input_buffer_size = adev_get_input_buffer_size;
+    adev->device.open_output_stream = adev_open_output_stream;
+    adev->device.close_output_stream = adev_close_output_stream;
+    adev->device.open_input_stream = adev_open_input_stream;
+    adev->device.close_input_stream = adev_close_input_stream;
+    adev->device.dump = adev_dump;
+
+    adev->output = NULL;
+
+
+    *device = &adev->device.common;
+
+    return 0;
+}
+
+static struct hw_module_methods_t hal_module_methods = {
+    .open = adev_open,
+};
+
+__attribute__ ((visibility ("default")))
+struct audio_module HAL_MODULE_INFO_SYM = {
+    .common = {
+        .tag = HARDWARE_MODULE_TAG,
+        .version_major = 1,
+        .version_minor = 0,
+        .id = AUDIO_HARDWARE_MODULE_ID,
+        .name = "A2DP Audio HW HAL",
+        .author = "The Android Open Source Project",
+        .methods = &hal_module_methods,
+    },
+};
diff --git a/rtkbt/code/bt/audio_a2dp_hw/audio_a2dp_hw.h b/rtkbt/code/bt/audio_a2dp_hw/audio_a2dp_hw.h
new file mode 100755
index 0000000..11d438a
--- /dev/null
+++ b/rtkbt/code/bt/audio_a2dp_hw/audio_a2dp_hw.h
@@ -0,0 +1,126 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/*****************************************************************************
+ *
+ *  Filename:      audio_a2dp_hw.h
+ *
+ *  Description:
+ *
+ *****************************************************************************/
+
+#ifndef AUDIO_A2DP_HW_H
+#define AUDIO_A2DP_HW_H
+
+/*****************************************************************************
+**  Constants & Macros
+******************************************************************************/
+
+#define A2DP_AUDIO_HARDWARE_INTERFACE "audio.a2dp"
+#define A2DP_CTRL_PATH "/data/misc/bluedroid/.a2dp_ctrl"
+#define A2DP_DATA_PATH "/data/misc/bluedroid/.a2dp_data"
+
+#define AUDIO_STREAM_DEFAULT_RATE          44100
+#define AUDIO_STREAM_DEFAULT_FORMAT        AUDIO_FORMAT_PCM_16_BIT
+#define AUDIO_STREAM_DEFAULT_CHANNEL_FLAG  AUDIO_CHANNEL_OUT_STEREO
+
+// AUDIO_STREAM_OUTPUT_BUFFER_SZ controls the size of the audio socket buffer.
+// If one assumes the write buffer is always full during normal BT playback,
+// then increasing this value increases our playback latency.
+//
+// FIXME: AUDIO_STREAM_OUTPUT_BUFFER_SZ should be controlled by the actual audio
+// sample rate rather than being constant.
+//
+// FIXME: The BT HAL should consume data at a constant rate.
+// AudioFlinger assumes that the HAL draws data at a constant rate, which is true
+// for most audio devices; however, the BT engine reads data at a variable rate
+// (over the short term), which confuses both AudioFlinger as well as applications
+// which deliver data at a (generally) fixed rate.
+//
+// 20 * 512 is not sufficient size to smooth the variability for some BT devices,
+// resulting in mixer sleep and throttling. We increase this to 28 * 512 to help
+// reduce the effect of variable data consumption.
+#define AUDIO_STREAM_OUTPUT_BUFFER_SZ      (28*512)
+
+// AUDIO_STREAM_OUTPUT_BUFFER_PERIODS controls how the socket buffer is divided
+// for AudioFlinger data delivery. The AudioFlinger mixer delivers data in chunks
+// of AUDIO_STREAM_OUTPUT_BUFFER_SZ / AUDIO_STREAM_OUTPUT_BUFFER_PERIODS. If
+// the number of periods is 2, the socket buffer represents "double buffering"
+// of the AudioFlinger mixer buffer.
+//
+// In general, AUDIO_STREAM_OUTPUT_BUFFER_PERIODS * 16 * 4 should be a divisor of
+// AUDIO_STREAM_OUTPUT_BUFFER_SZ.
+//
+// These values should be chosen such that
+//
+// AUDIO_STREAM_BUFFER_SIZE * 1000 / (AUDIO_STREAM_OUTPUT_BUFFER_PERIODS
+//         * AUDIO_STREAM_DEFAULT_RATE * 4) > 20 (ms)
+//
+// to avoid introducing the FastMixer in AudioFlinger. Using the FastMixer results in
+// unnecessary latency and CPU overhead for Bluetooth.
+#define AUDIO_STREAM_OUTPUT_BUFFER_PERIODS 4
+
+#define AUDIO_SKT_DISCONNECTED             (-1)
+
+typedef enum {
+    A2DP_CTRL_CMD_NONE,
+    A2DP_CTRL_CMD_CHECK_READY,
+    A2DP_CTRL_CMD_START,
+    A2DP_CTRL_CMD_STOP,
+    A2DP_CTRL_CMD_SUSPEND,
+    A2DP_CTRL_GET_AUDIO_CONFIG,
+    A2DP_CTRL_CMD_OFFLOAD_START,
+} tA2DP_CTRL_CMD;
+
+typedef enum {
+    A2DP_CTRL_ACK_SUCCESS,
+    A2DP_CTRL_ACK_FAILURE,
+    A2DP_CTRL_ACK_INCALL_FAILURE, /* Failure when in Call*/
+    A2DP_CTRL_ACK_UNSUPPORTED
+} tA2DP_CTRL_ACK;
+
+
+/*****************************************************************************
+**  Type definitions for callback functions
+******************************************************************************/
+
+/*****************************************************************************
+**  Type definitions and return values
+******************************************************************************/
+
+/*****************************************************************************
+**  Extern variables and functions
+******************************************************************************/
+
+/*****************************************************************************
+**  Functions
+******************************************************************************/
+
+
+/*****************************************************************************
+**
+** Function
+**
+** Description
+**
+** Returns
+**
+******************************************************************************/
+
+#endif /* A2DP_AUDIO_HW_H */
+
diff --git a/rtkbt/code/bt/bta/Android.mk b/rtkbt/code/bt/bta/Android.mk
new file mode 100755
index 0000000..a268ffe
--- /dev/null
+++ b/rtkbt/code/bt/bta/Android.mk
@@ -0,0 +1,104 @@
+LOCAL_PATH:= $(call my-dir)
+
+# BTA static library for target
+# ========================================================
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES:= \
+    ./dm/bta_dm_ci.c \
+    ./dm/bta_dm_act.c \
+    ./dm/bta_dm_pm.c \
+    ./dm/bta_dm_main.c \
+    ./dm/bta_dm_cfg.c \
+    ./dm/bta_dm_api.c \
+    ./dm/bta_dm_sco.c \
+    ./gatt/bta_gattc_api.c \
+    ./gatt/bta_gatts_act.c \
+    ./gatt/bta_gatts_main.c \
+    ./gatt/bta_gattc_utils.c \
+    ./gatt/bta_gatts_api.c \
+    ./gatt/bta_gattc_main.c \
+    ./gatt/bta_gattc_act.c \
+    ./gatt/bta_gattc_cache.c \
+    ./gatt/bta_gatts_utils.c \
+    ./ag/bta_ag_sdp.c \
+    ./ag/bta_ag_sco.c \
+    ./ag/bta_ag_cfg.c \
+    ./ag/bta_ag_main.c \
+    ./ag/bta_ag_api.c \
+    ./ag/bta_ag_rfc.c \
+    ./ag/bta_ag_act.c \
+    ./ag/bta_ag_cmd.c \
+    ./ag/bta_ag_ci.c \
+    ./ag/bta_ag_at.c \
+    ./hf_client/bta_hf_client_act.c \
+    ./hf_client/bta_hf_client_api.c \
+    ./hf_client/bta_hf_client_main.c \
+    ./hf_client/bta_hf_client_rfc.c \
+    ./hf_client/bta_hf_client_at.c \
+    ./hf_client/bta_hf_client_sdp.c \
+    ./hf_client/bta_hf_client_sco.c \
+    ./hf_client/bta_hf_client_cmd.c \
+    ./hh/bta_hh_cfg.c \
+    ./hh/bta_hh_act.c \
+    ./hh/bta_hh_api.c \
+    ./hh/bta_hh_le.c \
+    ./hh/bta_hh_utils.c \
+    ./hh/bta_hh_main.c \
+    ./pan/bta_pan_main.c \
+    ./pan/bta_pan_ci.c \
+    ./pan/bta_pan_act.c \
+    ./pan/bta_pan_api.c \
+    ./av/bta_av_act.c \
+    ./av/bta_av_ci.c \
+    ./av/bta_av_api.c \
+    ./av/bta_av_aact.c \
+    ./av/bta_av_main.c \
+    ./av/bta_av_cfg.c \
+    ./av/bta_av_ssm.c \
+    ./av/bta_av_sbc.c \
+    ./ar/bta_ar.c \
+    ./hl/bta_hl_act.c \
+    ./hl/bta_hl_api.c \
+    ./hl/bta_hl_main.c \
+    ./hl/bta_hl_utils.c \
+    ./hl/bta_hl_sdp.c \
+    ./hl/bta_hl_ci.c \
+    ./sdp/bta_sdp_api.c \
+    ./sdp/bta_sdp_act.c \
+    ./sdp/bta_sdp.c \
+    ./sdp/bta_sdp_cfg.c \
+    ./sys/bta_sys_main.c \
+    ./sys/bta_sys_conn.c \
+    ./sys/utl.c \
+    ./jv/bta_jv_act.c \
+    ./jv/bta_jv_cfg.c \
+    ./jv/bta_jv_main.c \
+    ./jv/bta_jv_api.c
+
+LOCAL_MODULE := libbt-bta-rtk
+LOCAL_MODULE_CLASS := STATIC_LIBRARIES
+LOCAL_MODULE_TAGS := optional
+LOCAL_SHARED_LIBRARIES := libcutils libc
+
+LOCAL_C_INCLUDES+= . \
+                   $(LOCAL_PATH)/include \
+                   $(LOCAL_PATH)/sys \
+                   $(LOCAL_PATH)/dm \
+                   $(LOCAL_PATH)/hh \
+                   $(LOCAL_PATH)/../ \
+                   $(LOCAL_PATH)/../btcore/include \
+                   $(LOCAL_PATH)/../hci/include \
+                   $(LOCAL_PATH)/../include \
+                   $(LOCAL_PATH)/../stack/include \
+                   $(LOCAL_PATH)/../stack/btm \
+                   $(LOCAL_PATH)/../udrv/include \
+                   $(LOCAL_PATH)/../vnd/include \
+                   $(LOCAL_PATH)/../utils/include \
+                   $(bluetooth_C_INCLUDES)
+
+LOCAL_CFLAGS += $(bluetooth_CFLAGS) -DBUILDCFG
+LOCAL_CONLYFLAGS += $(bluetooth_CONLYFLAGS)
+LOCAL_CPPFLAGS += $(bluetooth_CPPFLAGS)
+
+include $(BUILD_STATIC_LIBRARY)
diff --git a/rtkbt/code/bt/bta/BUILD.gn b/rtkbt/code/bt/bta/BUILD.gn
new file mode 100755
index 0000000..64c6261
--- /dev/null
+++ b/rtkbt/code/bt/bta/BUILD.gn
@@ -0,0 +1,110 @@
+#
+#  Copyright (C) 2015 Google, Inc.
+#
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at:
+#
+#  http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+#
+
+static_library("bta") {
+  sources = [
+    "ag/bta_ag_act.c",
+    "ag/bta_ag_api.c",
+    "ag/bta_ag_at.c",
+    "ag/bta_ag_cfg.c",
+    "ag/bta_ag_ci.c",
+    "ag/bta_ag_cmd.c",
+    "ag/bta_ag_main.c",
+    "ag/bta_ag_rfc.c",
+    "ag/bta_ag_sco.c",
+    "ag/bta_ag_sdp.c",
+    "ar/bta_ar.c",
+    "av/bta_av_aact.c",
+    "av/bta_av_act.c",
+    "av/bta_av_api.c",
+    "av/bta_av_cfg.c",
+    "av/bta_av_ci.c",
+    "av/bta_av_main.c",
+    "av/bta_av_sbc.c",
+    "av/bta_av_ssm.c",
+    "dm/bta_dm_act.c",
+    "dm/bta_dm_api.c",
+    "dm/bta_dm_cfg.c",
+    "dm/bta_dm_ci.c",
+    "dm/bta_dm_main.c",
+    "dm/bta_dm_pm.c",
+    "dm/bta_dm_sco.c",
+    "gatt/bta_gattc_act.c",
+    "gatt/bta_gattc_api.c",
+    "gatt/bta_gattc_cache.c",
+    "gatt/bta_gattc_main.c",
+    "gatt/bta_gattc_utils.c",
+    "gatt/bta_gatts_act.c",
+    "gatt/bta_gatts_api.c",
+    "gatt/bta_gatts_main.c",
+    "gatt/bta_gatts_utils.c",
+    "hf_client/bta_hf_client_act.c",
+    "hf_client/bta_hf_client_api.c",
+    "hf_client/bta_hf_client_at.c",
+    "hf_client/bta_hf_client_cmd.c",
+    "hf_client/bta_hf_client_main.c",
+    "hf_client/bta_hf_client_rfc.c",
+    "hf_client/bta_hf_client_sdp.c",
+    "hf_client/bta_hf_client_sco.c",
+    "hh/bta_hh_act.c",
+    "hh/bta_hh_api.c",
+    "hh/bta_hh_cfg.c",
+    "hh/bta_hh_le.c",
+    "hh/bta_hh_main.c",
+    "hh/bta_hh_utils.c",
+    "hl/bta_hl_act.c",
+    "hl/bta_hl_api.c",
+    "hl/bta_hl_ci.c",
+    "hl/bta_hl_main.c",
+    "hl/bta_hl_sdp.c",
+    "hl/bta_hl_utils.c",
+    "jv/bta_jv_act.c",
+    "jv/bta_jv_api.c",
+    "jv/bta_jv_cfg.c",
+    "jv/bta_jv_main.c",
+    "mce/bta_mce_act.c",
+    "mce/bta_mce_api.c",
+    "mce/bta_mce_cfg.c",
+    "mce/bta_mce_main.c",
+    "pan/bta_pan_act.c",
+    "pan/bta_pan_api.c",
+    "pan/bta_pan_ci.c",
+    "pan/bta_pan_main.c",
+    "sdp/bta_sdp.c",
+    "sdp/bta_sdp_act.c",
+    "sdp/bta_sdp_api.c",
+    "sdp/bta_sdp_cfg.c",
+    "sys/bta_sys_conn.c",
+    "sys/bta_sys_main.c",
+    "sys/utl.c",
+  ]
+
+  include_dirs = [
+    "dm",
+    "hh",
+    "include",
+    "sys",
+    "//",
+    "//btcore/include",
+    "//hci/include",
+    "//include",
+    "//stack/include",
+    "//stack/btm",
+    "//udrv/include",
+    "//utils/include",
+    "//vnd/include",
+  ]
+}
diff --git a/rtkbt/code/bt/bta/ag/bta_ag_act.c b/rtkbt/code/bt/bta/ag/bta_ag_act.c
new file mode 100755
index 0000000..3d52cef
--- /dev/null
+++ b/rtkbt/code/bt/bta/ag/bta_ag_act.c
@@ -0,0 +1,944 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains action functions for the audio gateway.
+ *
+ ******************************************************************************/
+
+#include "bta_api.h"
+#include "bta_sys.h"
+#include "bta_ag_api.h"
+#include "bta_ag_co.h"
+#include "bta_ag_int.h"
+#include "port_api.h"
+#include "utl.h"
+#include <string.h>
+#include "bta_dm_int.h"
+#include "l2c_api.h"
+
+/*****************************************************************************
+**  Constants
+*****************************************************************************/
+
+/* maximum length of data to read from RFCOMM */
+#define BTA_AG_RFC_READ_MAX     512
+
+/* maximum AT command length */
+#define BTA_AG_CMD_MAX          512
+
+const UINT16 bta_ag_uuid[BTA_AG_NUM_IDX] =
+{
+    UUID_SERVCLASS_HEADSET_AUDIO_GATEWAY,
+    UUID_SERVCLASS_AG_HANDSFREE
+};
+
+const UINT8 bta_ag_sec_id[BTA_AG_NUM_IDX] =
+{
+    BTM_SEC_SERVICE_HEADSET_AG,
+    BTM_SEC_SERVICE_AG_HANDSFREE
+};
+
+const tBTA_SERVICE_ID bta_ag_svc_id[BTA_AG_NUM_IDX] =
+{
+    BTA_HSP_SERVICE_ID,
+    BTA_HFP_SERVICE_ID
+};
+
+const tBTA_SERVICE_MASK bta_ag_svc_mask[BTA_AG_NUM_IDX] =
+{
+    BTA_HSP_SERVICE_MASK,
+    BTA_HFP_SERVICE_MASK
+};
+
+typedef void (*tBTA_AG_ATCMD_CBACK)(tBTA_AG_SCB *p_scb, UINT16 cmd, UINT8 arg_type,
+                                    char *p_arg, INT16 int_arg);
+
+const tBTA_AG_ATCMD_CBACK bta_ag_at_cback_tbl[BTA_AG_NUM_IDX] =
+{
+    bta_ag_at_hsp_cback,
+    bta_ag_at_hfp_cback
+};
+
+/*******************************************************************************
+**
+** Function         bta_ag_cback_open
+**
+** Description      Send open callback event to application.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_ag_cback_open(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data, tBTA_AG_STATUS status)
+{
+    tBTA_AG_OPEN    open;
+
+    /* call app callback with open event */
+    open.hdr.handle = bta_ag_scb_to_idx(p_scb);
+    open.hdr.app_id = p_scb->app_id;
+    open.status = status;
+    open.service_id = bta_ag_svc_id[p_scb->conn_service];
+    if(p_data)
+    {
+        /* if p_data is provided then we need to pick the bd address from the open api structure */
+        bdcpy(open.bd_addr, p_data->api_open.bd_addr);
+    }
+    else
+    {
+        bdcpy(open.bd_addr, p_scb->peer_addr);
+    }
+
+    (*bta_ag_cb.p_cback)(BTA_AG_OPEN_EVT, (tBTA_AG *) &open);
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_register
+**
+** Description      This function initializes values of the AG cb and sets up
+**                  the SDP record for the services.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_ag_register(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data)
+{
+    tBTA_AG_REGISTER reg;
+
+    /* initialize control block */
+    p_scb->reg_services = p_data->api_register.services;
+    p_scb->serv_sec_mask = p_data->api_register.sec_mask;
+    p_scb->features = p_data->api_register.features;
+    p_scb->app_id = p_data->api_register.app_id;
+
+    /* create SDP records */
+    bta_ag_create_records(p_scb, p_data);
+
+    /* start RFCOMM servers */
+    bta_ag_start_servers(p_scb, p_scb->reg_services);
+
+    /* call app callback with register event */
+    reg.hdr.handle = bta_ag_scb_to_idx(p_scb);
+    reg.hdr.app_id = p_scb->app_id;
+    reg.status = BTA_AG_SUCCESS;
+    (*bta_ag_cb.p_cback)(BTA_AG_REGISTER_EVT, (tBTA_AG *) &reg);
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_deregister
+**
+** Description      This function removes the sdp records, closes the RFCOMM
+**                  servers, and deallocates the service control block.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_ag_deregister(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data)
+{
+    /* set dealloc */
+    p_scb->dealloc = TRUE;
+
+    /* remove sdp records */
+    bta_ag_del_records(p_scb, p_data);
+
+    /* remove rfcomm servers */
+    bta_ag_close_servers(p_scb, p_scb->reg_services);
+
+    /* dealloc */
+    bta_ag_scb_dealloc(p_scb);
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_start_dereg
+**
+** Description      Start a deregister event.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_ag_start_dereg(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data)
+{
+    /* set dealloc */
+    p_scb->dealloc = TRUE;
+
+    /* remove sdp records */
+    bta_ag_del_records(p_scb, p_data);
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_start_open
+**
+** Description      This starts an AG open.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_ag_start_open(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data)
+{
+    BD_ADDR pending_bd_addr;
+
+    /* store parameters */
+    if (p_data)
+    {
+        bdcpy(p_scb->peer_addr, p_data->api_open.bd_addr);
+        p_scb->open_services = p_data->api_open.services;
+        p_scb->cli_sec_mask = p_data->api_open.sec_mask;
+    }
+
+    /* Check if RFCOMM has any incoming connection to avoid collision. */
+    if (PORT_IsOpening (pending_bd_addr))
+    {
+        /* Let the incoming connection goes through.                        */
+        /* Issue collision for this scb for now.                            */
+        /* We will decide what to do when we find incoming connetion later. */
+        bta_ag_collision_cback (0, BTA_ID_AG, 0, p_scb->peer_addr);
+        return;
+    }
+
+    /* close servers */
+    bta_ag_close_servers(p_scb, p_scb->reg_services);
+
+    /* set role */
+    p_scb->role = BTA_AG_INT;
+
+    /* do service search */
+    bta_ag_do_disc(p_scb, p_scb->open_services);
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_disc_int_res
+**
+** Description      This function handles a discovery result when initiator.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_ag_disc_int_res(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data)
+{
+    UINT16 event = BTA_AG_DISC_FAIL_EVT;
+
+    APPL_TRACE_DEBUG ("bta_ag_disc_int_res: Status: %d", p_data->disc_result.status);
+
+    /* if found service */
+    if (p_data->disc_result.status == SDP_SUCCESS ||
+        p_data->disc_result.status == SDP_DB_FULL)
+    {
+        /* get attributes */
+        if (bta_ag_sdp_find_attr(p_scb, p_scb->open_services))
+        {
+            /* set connected service */
+            p_scb->conn_service = bta_ag_service_to_idx(p_scb->open_services);
+
+            /* send ourselves sdp ok event */
+            event = BTA_AG_DISC_OK_EVT;
+        }
+    }
+
+    /* free discovery db */
+    bta_ag_free_db(p_scb, p_data);
+
+    /* if service not found check if we should search for other service */
+    if ((event == BTA_AG_DISC_FAIL_EVT) &&
+        (p_data->disc_result.status == SDP_SUCCESS ||
+         p_data->disc_result.status == SDP_DB_FULL ||
+         p_data->disc_result.status == SDP_NO_RECS_MATCH))
+    {
+        if ((p_scb->open_services & BTA_HFP_SERVICE_MASK) &&
+            (p_scb->open_services & BTA_HSP_SERVICE_MASK))
+        {
+            /* search for HSP */
+            p_scb->open_services &= ~BTA_HFP_SERVICE_MASK;
+            bta_ag_do_disc(p_scb, p_scb->open_services);
+        }
+        else if ((p_scb->open_services & BTA_HSP_SERVICE_MASK) &&
+                 (p_scb->hsp_version == HSP_VERSION_1_2))
+        {
+            /* search for UUID_SERVCLASS_HEADSET for HSP 1.0 device */
+            p_scb->hsp_version = HSP_VERSION_1_0;
+            bta_ag_do_disc(p_scb, p_scb->open_services);
+        }
+        else
+        {
+            /* send ourselves sdp ok/fail event */
+            bta_ag_sm_execute(p_scb, event, p_data);
+        }
+    }
+    else
+    {
+        /* send ourselves sdp ok/fail event */
+        bta_ag_sm_execute(p_scb, event, p_data);
+    }
+
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_disc_acp_res
+**
+** Description      This function handles a discovery result when acceptor.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_ag_disc_acp_res(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data)
+{
+    /* if found service */
+    if (p_data->disc_result.status == SDP_SUCCESS ||
+        p_data->disc_result.status == SDP_DB_FULL)
+    {
+        /* get attributes */
+        bta_ag_sdp_find_attr(p_scb, bta_ag_svc_mask[p_scb->conn_service]);
+    }
+
+    /* free discovery db */
+    bta_ag_free_db(p_scb, p_data);
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_disc_fail
+**
+** Description      This function handles a discovery failure.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_ag_disc_fail(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data)
+{
+    UNUSED(p_data);
+
+    /* reopen registered servers */
+    bta_ag_start_servers(p_scb, p_scb->reg_services);
+
+    /* reinitialize stuff */
+
+    /* clear the remote BD address */
+    bdcpy(p_scb->peer_addr, bd_addr_null);
+
+    /* call open cback w. failure */
+    bta_ag_cback_open(p_scb, NULL, BTA_AG_FAIL_SDP);
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_open_fail
+**
+** Description      open connection failed.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_ag_open_fail(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data)
+{
+    /* call open cback w. failure */
+    bta_ag_cback_open(p_scb, p_data, BTA_AG_FAIL_RESOURCES);
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_rfc_fail
+**
+** Description      RFCOMM connection failed.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_ag_rfc_fail(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data)
+{
+    UNUSED(p_data);
+
+    /* reinitialize stuff */
+    p_scb->conn_handle = 0;
+    p_scb->conn_service = 0;
+    p_scb->peer_features = 0;
+#if (BTM_WBS_INCLUDED == TRUE )
+    p_scb->peer_codecs = BTA_AG_CODEC_CVSD;
+    p_scb->sco_codec = BTA_AG_CODEC_CVSD;
+#endif
+    p_scb->role = 0;
+    p_scb->svc_conn = FALSE;
+    p_scb->hsp_version = HSP_VERSION_1_2;
+    /*Clear the BD address*/
+    bdcpy(p_scb->peer_addr, bd_addr_null);
+
+    /* reopen registered servers */
+    bta_ag_start_servers(p_scb, p_scb->reg_services);
+
+    /* call open cback w. failure */
+    bta_ag_cback_open(p_scb, NULL, BTA_AG_FAIL_RFCOMM);
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_rfc_close
+**
+** Description      RFCOMM connection closed.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_ag_rfc_close(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data)
+{
+    tBTA_AG_CLOSE    close;
+    tBTA_SERVICE_MASK services;
+    int i, num_active_conn = 0;
+    UNUSED(p_data);
+
+    /* reinitialize stuff */
+    p_scb->conn_service = 0;
+    p_scb->peer_features = 0;
+#if (BTM_WBS_INCLUDED == TRUE )
+    p_scb->peer_codecs = BTA_AG_CODEC_CVSD;
+    p_scb->sco_codec = BTA_AG_CODEC_CVSD;
+    /* Clear these flags upon SLC teardown */
+    p_scb->codec_updated = FALSE;
+    p_scb->codec_fallback = FALSE;
+    p_scb->codec_msbc_settings = BTA_AG_SCO_MSBC_SETTINGS_T2;
+#endif
+    p_scb->role = 0;
+    p_scb->post_sco = BTA_AG_POST_SCO_NONE;
+    p_scb->svc_conn = FALSE;
+    p_scb->hsp_version = HSP_VERSION_1_2;
+    bta_ag_at_reinit(&p_scb->at_cb);
+
+    /* stop timers */
+    alarm_cancel(p_scb->ring_timer);
+#if (BTM_WBS_INCLUDED == TRUE)
+    alarm_cancel(p_scb->codec_negotiation_timer);
+#endif
+
+    close.hdr.handle = bta_ag_scb_to_idx(p_scb);
+    close.hdr.app_id = p_scb->app_id;
+    bdcpy(close.bd_addr, p_scb->peer_addr);
+
+    bta_sys_conn_close(BTA_ID_AG, p_scb->app_id, p_scb->peer_addr);
+
+    /* call close call-out */
+    bta_ag_co_data_close(close.hdr.handle);
+
+    /* call close cback */
+    (*bta_ag_cb.p_cback)(BTA_AG_CLOSE_EVT, (tBTA_AG *) &close);
+
+    /* if not deregistering (deallocating) reopen registered servers */
+    if (p_scb->dealloc == FALSE)
+    {
+        /* Clear peer bd_addr so instance can be reused */
+        bdcpy(p_scb->peer_addr, bd_addr_null);
+
+        /* start only unopened server */
+        services = p_scb->reg_services;
+        for (i = 0; i < BTA_AG_NUM_IDX && services != 0; i++)
+        {
+            if(p_scb->serv_handle[i])
+                services &= ~((tBTA_SERVICE_MASK)1 << (BTA_HSP_SERVICE_ID + i));
+        }
+        bta_ag_start_servers(p_scb, services);
+
+        p_scb->conn_handle = 0;
+
+        /* Make sure SCO state is BTA_AG_SCO_SHUTDOWN_ST */
+        bta_ag_sco_shutdown(p_scb, NULL);
+
+        /* Check if all the SLCs are down */
+        for (i = 0; i < BTA_AG_NUM_SCB; i++)
+        {
+            if (bta_ag_cb.scb[i].in_use && bta_ag_cb.scb[i].svc_conn)
+                num_active_conn++;
+        }
+
+        if(!num_active_conn)
+        {
+            bta_sys_sco_unuse(BTA_ID_AG, p_scb->app_id, p_scb->peer_addr);
+        }
+
+    }
+    /* else close port and deallocate scb */
+    else
+    {
+        RFCOMM_RemoveServer(p_scb->conn_handle);
+        bta_ag_scb_dealloc(p_scb);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_rfc_open
+**
+** Description      Handle RFCOMM channel open.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_ag_rfc_open(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data)
+{
+    /* initialize AT feature variables */
+    p_scb->clip_enabled = FALSE;
+    p_scb->ccwa_enabled = FALSE;
+    p_scb->cmer_enabled = FALSE;
+    p_scb->cmee_enabled = FALSE;
+    p_scb->inband_enabled = ((p_scb->features & BTA_AG_FEAT_INBAND) == BTA_AG_FEAT_INBAND);
+
+    /* set up AT command interpreter */
+    p_scb->at_cb.p_at_tbl = (tBTA_AG_AT_CMD *) bta_ag_at_tbl[p_scb->conn_service];
+    p_scb->at_cb.p_cmd_cback = (tBTA_AG_AT_CMD_CBACK *) bta_ag_at_cback_tbl[p_scb->conn_service];
+    p_scb->at_cb.p_err_cback = (tBTA_AG_AT_ERR_CBACK *) bta_ag_at_err_cback;
+    p_scb->at_cb.p_user = p_scb;
+    p_scb->at_cb.cmd_max_len = BTA_AG_CMD_MAX;
+    bta_ag_at_init(&p_scb->at_cb);
+
+    /* call app open call-out */
+    bta_ag_co_data_open(bta_ag_scb_to_idx(p_scb), bta_ag_svc_id[p_scb->conn_service]);
+
+    bta_sys_conn_open(BTA_ID_AG, p_scb->app_id, p_scb->peer_addr);
+
+    bta_ag_cback_open(p_scb, NULL, BTA_AG_SUCCESS);
+
+    if (p_scb->conn_service == BTA_AG_HFP) {
+        /* if hfp start timer for service level conn */
+        bta_sys_start_timer(p_scb->ring_timer, p_bta_ag_cfg->conn_tout,
+                            BTA_AG_SVC_TIMEOUT_EVT, bta_ag_scb_to_idx(p_scb));
+    } else {
+        /* else service level conn is open */
+        bta_ag_svc_conn_open(p_scb, p_data);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_rfc_acp_open
+**
+** Description      Handle RFCOMM channel open when accepting connection.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_ag_rfc_acp_open(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data)
+{
+    UINT16          lcid;
+    int             i;
+    tBTA_AG_SCB     *ag_scb, *other_scb;
+    BD_ADDR         dev_addr;
+    int             status;
+
+    /* set role */
+    p_scb->role = BTA_AG_ACP;
+
+    APPL_TRACE_DEBUG ("bta_ag_rfc_acp_open: serv_handle0 = %d serv_handle1 = %d",
+                       p_scb->serv_handle[0], p_scb->serv_handle[1]);
+
+    /* get bd addr of peer */
+    if (PORT_SUCCESS != (status=PORT_CheckConnection(p_data->rfc.port_handle, dev_addr, &lcid)))
+    {
+        APPL_TRACE_DEBUG ("bta_ag_rfc_acp_open error PORT_CheckConnection returned status %d", status);
+    }
+
+    /* Collision Handling */
+    for (i = 0, ag_scb = &bta_ag_cb.scb[0]; i < BTA_AG_NUM_SCB; i++, ag_scb++)
+    {
+        if (ag_scb->in_use && alarm_is_scheduled(ag_scb->collision_timer))
+        {
+            alarm_cancel(ag_scb->collision_timer);
+
+            if (bdcmp (dev_addr, ag_scb->peer_addr) == 0)
+            {
+                /* If incoming and outgoing device are same, nothing more to do.            */
+                /* Outgoing conn will be aborted because we have successful incoming conn.  */
+            }
+            else
+            {
+                /* Resume outgoing connection. */
+                other_scb = bta_ag_get_other_idle_scb (p_scb);
+                if (other_scb)
+                {
+                    bdcpy(other_scb->peer_addr, ag_scb->peer_addr);
+                    other_scb->open_services = ag_scb->open_services;
+                    other_scb->cli_sec_mask = ag_scb->cli_sec_mask;
+
+                    bta_ag_resume_open (other_scb);
+                }
+            }
+
+            break;
+        }
+    }
+
+    bdcpy (p_scb->peer_addr, dev_addr);
+
+    /* determine connected service from port handle */
+    for (i = 0; i < BTA_AG_NUM_IDX; i++)
+    {
+        APPL_TRACE_DEBUG ("bta_ag_rfc_acp_open: i = %d serv_handle = %d port_handle = %d",
+                           i, p_scb->serv_handle[i], p_data->rfc.port_handle);
+
+        if (p_scb->serv_handle[i] == p_data->rfc.port_handle)
+        {
+            p_scb->conn_service = i;
+            p_scb->conn_handle = p_data->rfc.port_handle;
+            break;
+        }
+    }
+
+    APPL_TRACE_DEBUG ("bta_ag_rfc_acp_open: conn_service = %d conn_handle = %d",
+                       p_scb->conn_service, p_scb->conn_handle);
+
+    /* close any unopened server */
+    bta_ag_close_servers(p_scb, (p_scb->reg_services & ~bta_ag_svc_mask[p_scb->conn_service]));
+
+    /* do service discovery to get features */
+    bta_ag_do_disc(p_scb, bta_ag_svc_mask[p_scb->conn_service]);
+
+    /* continue with common open processing */
+    bta_ag_rfc_open(p_scb, p_data);
+
+
+
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_rfc_data
+**
+** Description      Read and process data from RFCOMM.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_ag_rfc_data(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data)
+{
+    UINT16  len;
+    char    buf[BTA_AG_RFC_READ_MAX];
+    UNUSED(p_data);
+
+    memset(buf, 0, BTA_AG_RFC_READ_MAX);
+
+    APPL_TRACE_DEBUG("%s", __func__);
+
+    /* do the following */
+    for(;;)
+    {
+        /* read data from rfcomm; if bad status, we're done */
+        if (PORT_ReadData(p_scb->conn_handle, buf, BTA_AG_RFC_READ_MAX, &len) != PORT_SUCCESS)
+        {
+            break;
+        }
+
+        /* if no data, we're done */
+        if (len == 0)
+        {
+            break;
+        }
+
+        /* run AT command interpreter on data */
+        bta_sys_busy(BTA_ID_AG, p_scb->app_id, p_scb->peer_addr);
+        bta_ag_at_parse(&p_scb->at_cb, buf, len);
+        if ((p_scb->sco_idx != BTM_INVALID_SCO_INDEX) && bta_ag_sco_is_open(p_scb))
+        {
+            APPL_TRACE_DEBUG ("%s change link policy for SCO", __func__);
+            bta_sys_sco_open(BTA_ID_AG, p_scb->app_id, p_scb->peer_addr);
+        } else {
+            bta_sys_idle(BTA_ID_AG, p_scb->app_id, p_scb->peer_addr);
+        }
+
+        /* no more data to read, we're done */
+        if (len < BTA_AG_RFC_READ_MAX)
+        {
+            break;
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_start_close
+**
+** Description      Start the process of closing SCO and RFCOMM connection.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_ag_start_close(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data)
+{
+    /* Take the link out of sniff and set L2C idle time to 0 */
+    bta_dm_pm_active(p_scb->peer_addr);
+    L2CA_SetIdleTimeoutByBdAddr(p_scb->peer_addr, 0, BT_TRANSPORT_BR_EDR);
+
+    /* if SCO is open close SCO and wait on RFCOMM close */
+    if (bta_ag_sco_is_open(p_scb))
+    {
+        p_scb->post_sco = BTA_AG_POST_SCO_CLOSE_RFC;
+    }
+    else
+    {
+        p_scb->post_sco = BTA_AG_POST_SCO_NONE;
+        bta_ag_rfc_do_close(p_scb, p_data);
+    }
+
+    /* always do SCO shutdown to handle all SCO corner cases */
+    bta_ag_sco_shutdown(p_scb, p_data);
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_post_sco_open
+**
+** Description      Perform post-SCO open action, if any
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_ag_post_sco_open(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data)
+{
+    switch (p_scb->post_sco)
+    {
+        case BTA_AG_POST_SCO_RING:
+            bta_ag_send_ring(p_scb, p_data);
+            p_scb->post_sco = BTA_AG_POST_SCO_NONE;
+            break;
+
+        case BTA_AG_POST_SCO_CALL_CONN:
+            bta_ag_send_call_inds(p_scb, BTA_AG_IN_CALL_CONN_RES);
+            p_scb->post_sco = BTA_AG_POST_SCO_NONE;
+            break;
+
+        default:
+            break;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_post_sco_close
+**
+** Description      Perform post-SCO close action, if any
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_ag_post_sco_close(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data)
+{
+    switch (p_scb->post_sco)
+    {
+        case BTA_AG_POST_SCO_CLOSE_RFC:
+            bta_ag_rfc_do_close(p_scb, p_data);
+            p_scb->post_sco = BTA_AG_POST_SCO_NONE;
+            break;
+
+        case BTA_AG_POST_SCO_CALL_CONN:
+            bta_ag_send_call_inds(p_scb, BTA_AG_IN_CALL_CONN_RES);
+            p_scb->post_sco = BTA_AG_POST_SCO_NONE;
+            break;
+
+        case BTA_AG_POST_SCO_CALL_ORIG:
+            bta_ag_send_call_inds(p_scb, BTA_AG_OUT_CALL_ORIG_RES);
+            p_scb->post_sco = BTA_AG_POST_SCO_NONE;
+            break;
+
+        case BTA_AG_POST_SCO_CALL_END:
+            bta_ag_send_call_inds(p_scb, BTA_AG_END_CALL_RES);
+            p_scb->post_sco = BTA_AG_POST_SCO_NONE;
+            break;
+
+        case BTA_AG_POST_SCO_CALL_END_INCALL:
+            bta_ag_send_call_inds(p_scb, BTA_AG_END_CALL_RES);
+
+            /* Sending callsetup IND and Ring were defered to after SCO close. */
+            bta_ag_send_call_inds(p_scb, BTA_AG_IN_CALL_RES);
+
+            if (bta_ag_inband_enabled(p_scb) && !(p_scb->features & BTA_AG_FEAT_NOSCO))
+            {
+                p_scb->post_sco = BTA_AG_POST_SCO_RING;
+                bta_ag_sco_open(p_scb, p_data);
+            }
+            else
+            {
+                p_scb->post_sco = BTA_AG_POST_SCO_NONE;
+                bta_ag_send_ring(p_scb, p_data);
+            }
+            break;
+
+        default:
+            break;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_svc_conn_open
+**
+** Description      Service level connection opened
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_ag_svc_conn_open(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data)
+{
+    tBTA_AG_CONN evt;
+    UNUSED(p_data);
+
+    if (!p_scb->svc_conn)
+    {
+        /* set state variable */
+        p_scb->svc_conn = TRUE;
+
+        /* Clear AT+BIA mask from previous SLC if any. */
+        p_scb->bia_masked_out = 0;
+
+        alarm_cancel(p_scb->ring_timer);
+
+        /* call callback */
+        evt.hdr.handle = bta_ag_scb_to_idx(p_scb);
+        evt.hdr.app_id = p_scb->app_id;
+        evt.peer_feat = p_scb->peer_features;
+        bdcpy(evt.bd_addr, p_scb->peer_addr);
+#if (BTM_WBS_INCLUDED == TRUE )
+        evt.peer_codec  = p_scb->peer_codecs;
+#endif
+
+        if ((p_scb->call_ind != BTA_AG_CALL_INACTIVE) ||
+            (p_scb->callsetup_ind != BTA_AG_CALLSETUP_NONE))
+        {
+            bta_sys_sco_use(BTA_ID_AG, p_scb->app_id, p_scb->peer_addr);
+        }
+
+        (*bta_ag_cb.p_cback)(BTA_AG_CONN_EVT, (tBTA_AG *) &evt);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_ci_rx_data
+**
+** Description      Send result code
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_ag_ci_rx_data(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data)
+{
+    UINT16 len;
+    tBTA_AG_CI_RX_WRITE *p_rx_write_msg = (tBTA_AG_CI_RX_WRITE *)p_data;
+    char *p_data_area = (char *)(p_rx_write_msg+1);     /* Point to data area after header */
+
+    APPL_TRACE_DEBUG("bta_ag_ci_rx_data:");
+    /* send to RFCOMM */
+    bta_sys_busy(BTA_ID_AG, p_scb->app_id, p_scb->peer_addr);
+    PORT_WriteData(p_scb->conn_handle, p_data_area, strlen(p_data_area), &len);
+    if ((p_scb->sco_idx != BTM_INVALID_SCO_INDEX) && bta_ag_sco_is_open(p_scb))
+    {
+        APPL_TRACE_DEBUG ("bta_ag_rfc_data, change link policy for SCO");
+        bta_sys_sco_open(BTA_ID_AG, p_scb->app_id, p_scb->peer_addr);
+    }
+    else
+    {
+        bta_sys_idle(BTA_ID_AG, p_scb->app_id, p_scb->peer_addr);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_rcvd_slc_ready
+**
+** Description      Handles SLC ready call-in in case of pass-through mode.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_ag_rcvd_slc_ready(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data)
+{
+    UNUSED(p_data);
+
+    APPL_TRACE_DEBUG("bta_ag_rcvd_slc_ready: handle = %d", bta_ag_scb_to_idx(p_scb));
+
+    if (bta_ag_cb.parse_mode == BTA_AG_PASS_THROUGH)
+    {
+        /* In pass-through mode, BTA knows that SLC is ready only through call-in. */
+        bta_ag_svc_conn_open(p_scb, NULL);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_setcodec
+**
+** Description      Handle API SetCodec
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_ag_setcodec(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data)
+{
+#if (BTM_WBS_INCLUDED == TRUE )
+    tBTA_AG_PEER_CODEC codec_type = p_data->api_setcodec.codec;
+    tBTA_AG_VAL        val;
+
+    /* Check if the requested codec type is valid */
+    if((codec_type != BTA_AG_CODEC_NONE) &&
+       (codec_type != BTA_AG_CODEC_CVSD) &&
+       (codec_type != BTA_AG_CODEC_MSBC))
+    {
+        val.num = codec_type;
+        val.hdr.status = BTA_AG_FAIL_RESOURCES;
+        APPL_TRACE_ERROR("bta_ag_setcodec error: unsupported codec type %d", codec_type);
+        (*bta_ag_cb.p_cback)(BTA_AG_WBS_EVT, (tBTA_AG *) &val);
+        return;
+    }
+
+    if((p_scb->peer_codecs & codec_type) || (codec_type == BTA_AG_CODEC_NONE) ||
+        (codec_type == BTA_AG_CODEC_CVSD))
+    {
+        p_scb->sco_codec = codec_type;
+        p_scb->codec_updated = TRUE;
+        val.num = codec_type;
+        val.hdr.status = BTA_AG_SUCCESS;
+        APPL_TRACE_DEBUG("bta_ag_setcodec: Updated codec type %d", codec_type);
+    }
+    else
+    {
+        val.num = codec_type;
+        val.hdr.status = BTA_AG_FAIL_RESOURCES;
+        APPL_TRACE_ERROR("bta_ag_setcodec error: unsupported codec type %d", codec_type);
+    }
+
+    (*bta_ag_cb.p_cback)(BTA_AG_WBS_EVT, (tBTA_AG *) &val);
+#endif
+}
+
diff --git a/rtkbt/code/bt/bta/ag/bta_ag_api.c b/rtkbt/code/bt/bta/ag/bta_ag_api.c
new file mode 100755
index 0000000..f3415be
--- /dev/null
+++ b/rtkbt/code/bt/bta/ag/bta_ag_api.c
@@ -0,0 +1,289 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the implementation of the API for the audio gateway (AG)
+ *  subsystem of BTA, Broadcom's Bluetooth application layer for mobile
+ *  phones.
+ *
+ ******************************************************************************/
+
+#include "bta_api.h"
+#include "bta_sys.h"
+#include "bta_ag_api.h"
+#include "bta_ag_int.h"
+#include "bt_common.h"
+#include <string.h>
+
+/*****************************************************************************
+**  Constants
+*****************************************************************************/
+
+static const tBTA_SYS_REG bta_ag_reg =
+{
+    bta_ag_hdl_event,
+    BTA_AgDisable
+};
+
+/*******************************************************************************
+**
+** Function         BTA_AgEnable
+**
+** Description      Enable the audio gateway service. When the enable
+**                  operation is complete the callback function will be
+**                  called with a BTA_AG_ENABLE_EVT. This function must
+**                  be called before other function in the AG API are
+**                  called.
+**
+** Returns          BTA_SUCCESS if OK, BTA_FAILURE otherwise.
+**
+*******************************************************************************/
+tBTA_STATUS BTA_AgEnable(tBTA_AG_PARSE_MODE parse_mode, tBTA_AG_CBACK *p_cback)
+{
+    /* Error if AG is already enabled, or AG is in the middle of disabling. */
+    for (int idx = 0; idx < BTA_AG_NUM_SCB; idx++) {
+        if (bta_ag_cb.scb[idx].in_use) {
+            APPL_TRACE_ERROR ("BTA_AgEnable: FAILED, AG already enabled.");
+            return BTA_FAILURE;
+        }
+    }
+
+    /* register with BTA system manager */
+    bta_sys_register(BTA_ID_AG, &bta_ag_reg);
+
+    tBTA_AG_API_ENABLE *p_buf =
+        (tBTA_AG_API_ENABLE *)osi_malloc(sizeof(tBTA_AG_API_ENABLE));
+    p_buf->hdr.event = BTA_AG_API_ENABLE_EVT;
+    p_buf->parse_mode = parse_mode;
+    p_buf->p_cback = p_cback;
+
+    bta_sys_sendmsg(p_buf);
+
+    return BTA_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         BTA_AgDisable
+**
+** Description      Disable the audio gateway service
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AgDisable(void)
+{
+    BT_HDR *p_buf = (BT_HDR *)osi_malloc(sizeof(BT_HDR));
+
+    p_buf->event = BTA_AG_API_DISABLE_EVT;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_AgRegister
+**
+** Description      Register an Audio Gateway service.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AgRegister(tBTA_SERVICE_MASK services, tBTA_SEC sec_mask,tBTA_AG_FEAT features,
+                  char * p_service_names[], UINT8 app_id)
+{
+    tBTA_AG_API_REGISTER *p_buf =
+        (tBTA_AG_API_REGISTER *)osi_malloc(sizeof(tBTA_AG_API_REGISTER));
+
+    p_buf->hdr.event = BTA_AG_API_REGISTER_EVT;
+    p_buf->features = features;
+    p_buf->sec_mask = sec_mask;
+    p_buf->services = services;
+    p_buf->app_id = app_id;
+    for (int i = 0; i < BTA_AG_NUM_IDX; i++) {
+        if (p_service_names[i])
+            strlcpy(p_buf->p_name[i], p_service_names[i], BTA_SERVICE_NAME_LEN);
+        else
+            p_buf->p_name[i][0] = 0;
+    }
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_AgDeregister
+**
+** Description      Deregister an audio gateway service.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AgDeregister(UINT16 handle)
+{
+    BT_HDR *p_buf = (BT_HDR *)osi_malloc(sizeof(BT_HDR));
+
+    p_buf->event = BTA_AG_API_DEREGISTER_EVT;
+    p_buf->layer_specific = handle;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_AgOpen
+**
+** Description      Opens a connection to a headset or hands-free device.
+**                  When connection is open callback function is called
+**                  with a BTA_AG_OPEN_EVT. Only the data connection is
+**                  opened. The audio connection is not opened.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AgOpen(UINT16 handle, BD_ADDR bd_addr, tBTA_SEC sec_mask, tBTA_SERVICE_MASK services)
+{
+    tBTA_AG_API_OPEN *p_buf =
+        (tBTA_AG_API_OPEN *)osi_malloc(sizeof(tBTA_AG_API_OPEN));
+
+    p_buf->hdr.event = BTA_AG_API_OPEN_EVT;
+    p_buf->hdr.layer_specific = handle;
+    bdcpy(p_buf->bd_addr, bd_addr);
+    p_buf->services = services;
+    p_buf->sec_mask = sec_mask;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_AgClose
+**
+** Description      Close the current connection to a headset or a handsfree
+**                  Any current audio connection will also be closed.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AgClose(UINT16 handle)
+{
+    BT_HDR *p_buf = (BT_HDR *)osi_malloc(sizeof(BT_HDR));
+
+    p_buf->event = BTA_AG_API_CLOSE_EVT;
+    p_buf->layer_specific = handle;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_AgAudioOpen
+**
+** Description      Opens an audio connection to the currently connected
+**                  headset or hnadsfree.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AgAudioOpen(UINT16 handle)
+{
+    BT_HDR *p_buf = (BT_HDR *)osi_malloc(sizeof(BT_HDR));
+
+    p_buf->event = BTA_AG_API_AUDIO_OPEN_EVT;
+    p_buf->layer_specific = handle;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_AgAudioClose
+**
+** Description      Close the currently active audio connection to a headset
+**                  or hnadsfree. The data connection remains open
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AgAudioClose(UINT16 handle)
+{
+    BT_HDR  *p_buf = (BT_HDR *)osi_malloc(sizeof(BT_HDR));
+
+    p_buf->event = BTA_AG_API_AUDIO_CLOSE_EVT;
+    p_buf->layer_specific = handle;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_AgResult
+**
+** Description      Send an AT result code to a headset or hands-free device.
+**                  This function is only used when the AG parse mode is set
+**                  to BTA_AG_PARSE.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AgResult(UINT16 handle, tBTA_AG_RES result, tBTA_AG_RES_DATA *p_data)
+{
+    tBTA_AG_API_RESULT *p_buf =
+        (tBTA_AG_API_RESULT *)osi_malloc(sizeof(tBTA_AG_API_RESULT));
+
+    p_buf->hdr.event = BTA_AG_API_RESULT_EVT;
+    p_buf->hdr.layer_specific = handle;
+    p_buf->result = result;
+    if (p_data)
+        memcpy(&p_buf->data, p_data, sizeof(p_buf->data));
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_AgSetCodec
+**
+** Description      Specify the codec type to be used for the subsequent
+**                  audio connection.
+**
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AgSetCodec(UINT16 handle, tBTA_AG_PEER_CODEC codec)
+{
+    tBTA_AG_API_SETCODEC *p_buf =
+        (tBTA_AG_API_SETCODEC *)osi_malloc(sizeof(tBTA_AG_API_SETCODEC));
+
+    p_buf->hdr.event = BTA_AG_API_SETCODEC_EVT;
+    p_buf->hdr.layer_specific = handle;
+    p_buf->codec = codec;
+
+    bta_sys_sendmsg(p_buf);
+}
diff --git a/rtkbt/code/bt/bta/ag/bta_ag_at.c b/rtkbt/code/bt/bta/ag/bta_ag_at.c
new file mode 100755
index 0000000..8201e86
--- /dev/null
+++ b/rtkbt/code/bt/bta/ag/bta_ag_at.c
@@ -0,0 +1,239 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2004-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  BTA AG AT command interpreter.
+ *
+ ******************************************************************************/
+
+#include <string.h>
+#include "bt_common.h"
+#include "bta_ag_at.h"
+#include "utl.h"
+
+/*****************************************************************************
+**  Constants
+*****************************************************************************/
+
+/******************************************************************************
+**
+** Function         bta_ag_at_init
+**
+** Description      Initialize the AT command parser control block.
+**
+**
+** Returns          void
+**
+******************************************************************************/
+void bta_ag_at_init(tBTA_AG_AT_CB *p_cb)
+{
+    p_cb->p_cmd_buf = NULL;
+    p_cb->cmd_pos = 0;
+}
+
+/******************************************************************************
+**
+** Function         bta_ag_at_reinit
+**
+** Description      Re-initialize the AT command parser control block.  This
+**                  function resets the AT command parser state and frees
+**                  any GKI buffer.
+**
+**
+** Returns          void
+**
+******************************************************************************/
+void bta_ag_at_reinit(tBTA_AG_AT_CB *p_cb)
+{
+    osi_free_and_reset((void **)&p_cb->p_cmd_buf);
+    p_cb->cmd_pos = 0;
+}
+
+/******************************************************************************
+**
+** Function         bta_ag_process_at
+**
+** Description      Parse AT commands.  This function will take the input
+**                  character string and parse it for AT commands according to
+**                  the AT command table passed in the control block.
+**
+**
+** Returns          void
+**
+******************************************************************************/
+void bta_ag_process_at(tBTA_AG_AT_CB *p_cb)
+{
+    UINT16      idx;
+    UINT8       arg_type;
+    char        *p_arg;
+    INT16       int_arg = 0;
+    /* loop through at command table looking for match */
+    for (idx = 0; p_cb->p_at_tbl[idx].p_cmd[0] != 0; idx++)
+    {
+        if (!utl_strucmp(p_cb->p_at_tbl[idx].p_cmd, p_cb->p_cmd_buf))
+        {
+            break;
+        }
+    }
+
+    /* if there is a match; verify argument type */
+    if (p_cb->p_at_tbl[idx].p_cmd[0] != 0)
+    {
+        /* start of argument is p + strlen matching command */
+        p_arg = p_cb->p_cmd_buf + strlen(p_cb->p_at_tbl[idx].p_cmd);
+
+        /* if no argument */
+        if (p_arg[0] == 0)
+        {
+            arg_type = BTA_AG_AT_NONE;
+        }
+        /* else if arg is '?' and it is last character */
+        else if (p_arg[0] == '?' && p_arg[1] == 0)
+        {
+            /* we have a read */
+            arg_type = BTA_AG_AT_READ;
+        }
+        /* else if arg is '=' */
+        else if (p_arg[0] == '=' && p_arg[1] != 0)
+        {
+            if (p_arg[1] == '?' && p_arg[2] == 0)
+            {
+                /* we have a test */
+                arg_type = BTA_AG_AT_TEST;
+            }
+            else
+            {
+                /* we have a set */
+                arg_type = BTA_AG_AT_SET;
+
+                /* skip past '=' */
+                p_arg++;
+            }
+        }
+        else
+        /* else it is freeform argument */
+        {
+            arg_type = BTA_AG_AT_FREE;
+        }
+
+        /* if arguments match command capabilities */
+        if ((arg_type & p_cb->p_at_tbl[idx].arg_type) != 0)
+        {
+            /* if it's a set integer check max, min range */
+            if (arg_type == BTA_AG_AT_SET &&
+                p_cb->p_at_tbl[idx].fmt == BTA_AG_AT_INT)
+            {
+                int_arg = utl_str2int(p_arg);
+                if (int_arg < (INT16) p_cb->p_at_tbl[idx].min ||
+                    int_arg > (INT16) p_cb->p_at_tbl[idx].max)
+                {
+                    /* arg out of range; error */
+                    (*p_cb->p_err_cback)(p_cb->p_user, FALSE, NULL);
+                }
+                else
+                {
+
+                    (*p_cb->p_cmd_cback)(p_cb->p_user, idx, arg_type, p_arg, int_arg);
+                }
+            }
+            else
+            {
+                (*p_cb->p_cmd_cback)(p_cb->p_user, idx, arg_type, p_arg, int_arg);
+            }
+        }
+        /* else error */
+        else
+        {
+            (*p_cb->p_err_cback)(p_cb->p_user, FALSE, NULL);
+        }
+    }
+    /* else no match call error callback */
+    else
+    {
+        (*p_cb->p_err_cback)(p_cb->p_user, TRUE, p_cb->p_cmd_buf);
+    }
+}
+
+/******************************************************************************
+**
+** Function         bta_ag_at_parse
+**
+** Description      Parse AT commands.  This function will take the input
+**                  character string and parse it for AT commands according to
+**                  the AT command table passed in the control block.
+**
+**
+** Returns          void
+**
+******************************************************************************/
+void bta_ag_at_parse(tBTA_AG_AT_CB *p_cb, char *p_buf, UINT16 len)
+{
+    int i = 0;
+    char* p_save;
+
+    if (p_cb->p_cmd_buf == NULL) {
+        p_cb->p_cmd_buf = (char *)osi_malloc(p_cb->cmd_max_len);
+        p_cb->cmd_pos = 0;
+    }
+
+    for (i = 0; i < len;)
+    {
+        while (p_cb->cmd_pos < p_cb->cmd_max_len-1 && i < len)
+        {
+            /* Skip null characters between AT commands. */
+            if ((p_cb->cmd_pos == 0) && (p_buf[i] == 0))
+            {
+                i++;
+                continue;
+            }
+
+            p_cb->p_cmd_buf[p_cb->cmd_pos] = p_buf[i++];
+            if ( p_cb->p_cmd_buf[p_cb->cmd_pos] == '\r' || p_cb->p_cmd_buf[p_cb->cmd_pos] == '\n')
+            {
+                p_cb->p_cmd_buf[p_cb->cmd_pos] = 0;
+                if ((p_cb->cmd_pos > 2)                                      &&
+                    (p_cb->p_cmd_buf[0] == 'A' || p_cb->p_cmd_buf[0] == 'a') &&
+                    (p_cb->p_cmd_buf[1] == 'T' || p_cb->p_cmd_buf[1] == 't'))
+                {
+                    p_save = p_cb->p_cmd_buf;
+                    p_cb->p_cmd_buf += 2;
+                    bta_ag_process_at(p_cb);
+                    p_cb->p_cmd_buf = p_save;
+                }
+
+                p_cb->cmd_pos = 0;
+
+            }
+            else if( p_cb->p_cmd_buf[p_cb->cmd_pos] == 0x1A || p_cb->p_cmd_buf[p_cb->cmd_pos] == 0x1B )
+            {
+                p_cb->p_cmd_buf[++p_cb->cmd_pos] = 0;
+                (*p_cb->p_err_cback)(p_cb->p_user, TRUE, p_cb->p_cmd_buf);
+                p_cb->cmd_pos = 0;
+            }
+            else
+            {
+                ++p_cb->cmd_pos;
+            }
+        }
+
+        if (i < len)
+            p_cb->cmd_pos = 0;
+    }
+}
+
diff --git a/rtkbt/code/bt/bta/ag/bta_ag_at.h b/rtkbt/code/bt/bta/ag/bta_ag_at.h
new file mode 100755
index 0000000..90d7b0f
--- /dev/null
+++ b/rtkbt/code/bt/bta/ag/bta_ag_at.h
@@ -0,0 +1,121 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2004-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  Interface file for BTA AG AT command interpreter.
+ *
+ ******************************************************************************/
+#ifndef BTA_AG_AT_H
+#define BTA_AG_AT_H
+
+/*****************************************************************************
+**  Constants
+*****************************************************************************/
+
+/* AT command argument capabilities */
+#define BTA_AG_AT_NONE          0x01        /* no argument */
+#define BTA_AG_AT_SET           0x02        /* set value */
+#define BTA_AG_AT_READ          0x04        /* read value */
+#define BTA_AG_AT_TEST          0x08        /* test value range */
+#define BTA_AG_AT_FREE          0x10        /* freeform argument */
+
+/* AT command argument format */
+#define BTA_AG_AT_STR           0           /* string */
+#define BTA_AG_AT_INT           1           /* integer */
+
+/*****************************************************************************
+**  Data types
+*****************************************************************************/
+
+/* AT command table element */
+typedef struct
+{
+    const char  *p_cmd;         /* AT command string */
+    UINT8       arg_type;       /* allowable argument type syntax */
+    UINT8       fmt;            /* whether arg is int or string */
+    UINT8       min;            /* minimum value for int arg */
+    INT16       max;            /* maximum value for int arg */
+} tBTA_AG_AT_CMD;
+
+/* callback function executed when command is parsed */
+typedef void (tBTA_AG_AT_CMD_CBACK)(void *p_user, UINT16 cmd, UINT8 arg_type,
+                                    char *p_arg, INT16 int_arg);
+
+/* callback function executed to send "ERROR" result code */
+typedef void (tBTA_AG_AT_ERR_CBACK)(void *p_user, BOOLEAN unknown, char *p_arg);
+
+/* AT command parsing control block */
+typedef struct
+{
+    tBTA_AG_AT_CMD          *p_at_tbl;      /* AT command table */
+    tBTA_AG_AT_CMD_CBACK    *p_cmd_cback;   /* command callback */
+    tBTA_AG_AT_ERR_CBACK    *p_err_cback;   /* error callback */
+    void                    *p_user;        /* user-defined data */
+    char                    *p_cmd_buf;     /* temp parsing buffer */
+    UINT16                  cmd_pos;        /* position in temp buffer */
+    UINT16                  cmd_max_len;    /* length of temp buffer to allocate */
+    UINT8                   state;          /* parsing state */
+} tBTA_AG_AT_CB;
+
+/*****************************************************************************
+**  Function prototypes
+*****************************************************************************/
+
+/*****************************************************************************
+**
+** Function         bta_ag_at_init
+**
+** Description      Initialize the AT command parser control block.
+**
+**
+** Returns          void
+**
+*****************************************************************************/
+extern void bta_ag_at_init(tBTA_AG_AT_CB *p_cb);
+
+/*****************************************************************************
+**
+** Function         bta_ag_at_reinit
+**
+** Description      Re-initialize the AT command parser control block.  This
+**                  function resets the AT command parser state and frees
+**                  any GKI buffer.
+**
+**
+** Returns          void
+**
+*****************************************************************************/
+extern void bta_ag_at_reinit(tBTA_AG_AT_CB *p_cb);
+
+/*****************************************************************************
+**
+** Function         bta_ag_at_parse
+**
+** Description      Parse AT commands.  This function will take the input
+**                  character string and parse it for AT commands according to
+**                  the AT command table passed in the control block.
+**
+**
+** Returns          void
+**
+*****************************************************************************/
+extern void bta_ag_at_parse(tBTA_AG_AT_CB *p_cb, char *p_buf, UINT16 len);
+
+#endif /* BTA_AG_AT_H */
+
diff --git a/rtkbt/code/bt/bta/ag/bta_ag_cfg.c b/rtkbt/code/bt/bta/ag/bta_ag_cfg.c
new file mode 100755
index 0000000..cfe298a
--- /dev/null
+++ b/rtkbt/code/bt/bta/ag/bta_ag_cfg.c
@@ -0,0 +1,64 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains compile-time configurable constants for the audio
+ *  gateway.
+ *
+ ******************************************************************************/
+
+#include "bt_common.h"
+#include "bta_api.h"
+#include "bta_ag_api.h"
+
+#ifndef BTA_AG_CIND_INFO
+#define BTA_AG_CIND_INFO     "(\"call\",(0,1)),(\"callsetup\",(0-3)),(\"service\",(0-3)),(\"signal\",(0-6)),(\"roam\",(0,1)),(\"battchg\",(0-5)),(\"callheld\",(0-2)),(\"bearer\",(0-7))"
+#endif
+
+#ifndef BTA_AG_CHLD_VAL_ECC
+#define BTA_AG_CHLD_VAL_ECC  "(0,1,1x,2,2x,3,4)"
+#endif
+
+#ifndef BTA_AG_CHLD_VAL
+#define BTA_AG_CHLD_VAL  "(0,1,2,3,4)"
+#endif
+
+#ifndef BTA_AG_CONN_TIMEOUT
+#define BTA_AG_CONN_TIMEOUT     5000
+#endif
+
+#ifndef BTA_AG_SCO_PKT_TYPES
+/* S1 packet type setting from HFP 1.5 spec */
+#define BTA_AG_SCO_PKT_TYPES    /* BTM_SCO_LINK_ALL_PKT_MASK */ (BTM_SCO_LINK_ONLY_MASK          | \
+                                                                 BTM_SCO_PKT_TYPES_MASK_EV3      | \
+                                                                 BTM_SCO_PKT_TYPES_MASK_NO_3_EV3 | \
+                                                                 BTM_SCO_PKT_TYPES_MASK_NO_2_EV5 | \
+                                                                 BTM_SCO_PKT_TYPES_MASK_NO_3_EV5)
+#endif
+
+const tBTA_AG_CFG bta_ag_cfg =
+{
+    BTA_AG_CIND_INFO,
+    BTA_AG_CONN_TIMEOUT,
+    BTA_AG_SCO_PKT_TYPES,
+    BTA_AG_CHLD_VAL_ECC,
+    BTA_AG_CHLD_VAL
+};
+
+tBTA_AG_CFG *p_bta_ag_cfg = (tBTA_AG_CFG *) &bta_ag_cfg;
diff --git a/rtkbt/code/bt/bta/ag/bta_ag_ci.c b/rtkbt/code/bt/bta/ag/bta_ag_ci.c
new file mode 100755
index 0000000..968cb1b
--- /dev/null
+++ b/rtkbt/code/bt/bta/ag/bta_ag_ci.c
@@ -0,0 +1,90 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the implementation file for audio gateway call-in functions.
+ *
+ ******************************************************************************/
+
+#include <string.h>
+#include "bta_api.h"
+#include "bta_ag_api.h"
+#include "bta_ag_int.h"
+#include "bta_ag_ci.h"
+#include "bt_common.h"
+
+/******************************************************************************
+**
+** Function         bta_ag_ci_rx_write
+**
+** Description      This function is called to send data to the AG when the AG
+**                  is configured for AT command pass-through.  The function
+**                  copies data to an event buffer and sends it.
+**
+** Returns          void
+**
+******************************************************************************/
+void bta_ag_ci_rx_write(UINT16 handle, char *p_data, UINT16 len)
+{
+    UINT16 len_remaining = len;
+    char *p_data_area;
+
+    if (len > (RFCOMM_DATA_BUF_SIZE - sizeof(tBTA_AG_CI_RX_WRITE) - 1))
+        len = RFCOMM_DATA_BUF_SIZE - sizeof(tBTA_AG_CI_RX_WRITE) - 1;
+
+    while (len_remaining) {
+        if (len_remaining < len)
+            len = len_remaining;
+
+        tBTA_AG_CI_RX_WRITE *p_buf =
+            (tBTA_AG_CI_RX_WRITE *)osi_malloc(sizeof(tBTA_AG_CI_RX_WRITE) + len + 1);
+        p_buf->hdr.event = BTA_AG_CI_RX_WRITE_EVT;
+        p_buf->hdr.layer_specific = handle;
+
+        p_data_area = (char *)(p_buf+1);        /* Point to data area after header */
+        strncpy(p_data_area, p_data, len);
+        p_data_area[len] = 0;
+
+        bta_sys_sendmsg(p_buf);
+
+        len_remaining -= len;
+        p_data += len;
+    }
+}
+
+/******************************************************************************
+**
+** Function         bta_ag_ci_slc_ready
+**
+** Description      This function is called to notify AG that SLC is up at
+**                  the application. This funcion is only used when the app
+**                  is running in pass-through mode.
+**
+** Returns          void
+**
+******************************************************************************/
+void bta_ag_ci_slc_ready(UINT16 handle)
+{
+    tBTA_AG_DATA *p_buf = (tBTA_AG_DATA *)osi_malloc(sizeof(tBTA_AG_DATA));
+
+    p_buf->hdr.event = BTA_AG_CI_SLC_READY_EVT;
+    p_buf->hdr.layer_specific = handle;
+
+    bta_sys_sendmsg(p_buf);
+}
diff --git a/rtkbt/code/bt/bta/ag/bta_ag_cmd.c b/rtkbt/code/bt/bta/ag/bta_ag_cmd.c
new file mode 100755
index 0000000..2ab9f51
--- /dev/null
+++ b/rtkbt/code/bt/bta/ag/bta_ag_cmd.c
@@ -0,0 +1,1824 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2004-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains functions for processing AT commands and results.
+ *
+ ******************************************************************************/
+#include <ctype.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "bt_target.h"
+#include "bt_types.h"
+#include "bta_ag_api.h"
+#include "bta_ag_at.h"
+#include "bta_ag_int.h"
+#include "bta_api.h"
+#include "bta_sys.h"
+#include "bt_common.h"
+#include "port_api.h"
+#include "utl.h"
+
+
+/*****************************************************************************
+**  Constants
+*****************************************************************************/
+
+/* Ring timeout */
+#define BTA_AG_RING_TIMEOUT_MS  (5 * 1000)      /* 5 seconds */
+
+#define BTA_AG_CMD_MAX_VAL      32767  /* Maximum value is signed 16-bit value */
+
+/* Invalid Chld command */
+#define BTA_AG_INVALID_CHLD        255
+
+/* clip type constants */
+#define BTA_AG_CLIP_TYPE_MIN        128
+#define BTA_AG_CLIP_TYPE_MAX        175
+#define BTA_AG_CLIP_TYPE_DEFAULT    129
+#define BTA_AG_CLIP_TYPE_VOIP       255
+
+#if defined(BTA_AG_MULTI_RESULT_INCLUDED) && (BTA_AG_MULTI_RESULT_INCLUDED == TRUE)
+#define BTA_AG_AT_MULTI_LEN            2
+#define AT_SET_RES_CB(res_cb, c, p, i) {res_cb.code = c; res_cb.p_arg = p; res_cb.int_arg = i;}
+
+/* type for AT result code block */
+typedef struct
+{
+    UINT8 code;
+    char *p_arg;
+    INT16 int_arg;
+} tBTA_AG_RESULT_CB;
+
+/* type for multiple AT result codes block */
+typedef struct
+{
+    UINT8 num_result;
+    tBTA_AG_RESULT_CB res_cb[BTA_AG_AT_MULTI_LEN];
+} tBTA_AG_MULTI_RESULT_CB;
+#endif
+
+/* enumeration of HSP AT commands matches HSP command interpreter table */
+enum
+{
+    BTA_AG_HS_CMD_CKPD,
+    BTA_AG_HS_CMD_VGS,
+    BTA_AG_HS_CMD_VGM
+};
+
+/* enumeration of HFP AT commands matches HFP command interpreter table */
+enum
+{
+    BTA_AG_HF_CMD_A,
+    BTA_AG_HF_CMD_D,
+    BTA_AG_HF_CMD_VGS,
+    BTA_AG_HF_CMD_VGM,
+    BTA_AG_HF_CMD_CCWA,
+    BTA_AG_HF_CMD_CHLD,
+    BTA_AG_HF_CMD_CHUP,
+    BTA_AG_HF_CMD_CIND,
+    BTA_AG_HF_CMD_CLIP,
+    BTA_AG_HF_CMD_CMER,
+    BTA_AG_HF_CMD_VTS,
+    BTA_AG_HF_CMD_BINP,
+    BTA_AG_HF_CMD_BLDN,
+    BTA_AG_HF_CMD_BVRA,
+    BTA_AG_HF_CMD_BRSF,
+    BTA_AG_HF_CMD_NREC,
+    BTA_AG_HF_CMD_CNUM,
+    BTA_AG_HF_CMD_BTRH,
+    BTA_AG_HF_CMD_CLCC,
+    BTA_AG_HF_CMD_COPS,
+    BTA_AG_HF_CMD_CMEE,
+    BTA_AG_HF_CMD_BIA,
+    BTA_AG_HF_CMD_CBC,
+    BTA_AG_HF_CMD_BCC,
+    BTA_AG_HF_CMD_BCS,
+    BTA_AG_HF_CMD_BAC
+};
+
+/* AT command interpreter table for HSP */
+const tBTA_AG_AT_CMD bta_ag_hsp_cmd[] =
+{
+    {"+CKPD",   BTA_AG_AT_SET,                      BTA_AG_AT_INT, 200, 200},
+    {"+VGS",    BTA_AG_AT_SET,                      BTA_AG_AT_INT,   0,  15},
+    {"+VGM",    BTA_AG_AT_SET,                      BTA_AG_AT_INT,   0,  15},
+    {"",        BTA_AG_AT_NONE,                     BTA_AG_AT_STR,   0,   0}
+};
+
+/* AT command interpreter table for HFP */
+const tBTA_AG_AT_CMD bta_ag_hfp_cmd[] =
+{
+    {"A",       BTA_AG_AT_NONE,                     BTA_AG_AT_STR,   0,   0},
+    {"D",       (BTA_AG_AT_NONE | BTA_AG_AT_FREE),  BTA_AG_AT_STR,   0,   0},
+    {"+VGS",    BTA_AG_AT_SET,                      BTA_AG_AT_INT,   0,  15},
+    {"+VGM",    BTA_AG_AT_SET,                      BTA_AG_AT_INT,   0,  15},
+    {"+CCWA",   BTA_AG_AT_SET,                      BTA_AG_AT_INT,   0,   1},
+    /* Consider CHLD as str to take care of indexes for ECC */
+    {"+CHLD",   (BTA_AG_AT_SET | BTA_AG_AT_TEST),   BTA_AG_AT_STR,   0,   4},
+    {"+CHUP",   BTA_AG_AT_NONE,                     BTA_AG_AT_STR,   0,   0},
+    {"+CIND",   (BTA_AG_AT_READ | BTA_AG_AT_TEST),  BTA_AG_AT_STR,   0,   0},
+    {"+CLIP",   BTA_AG_AT_SET,                      BTA_AG_AT_INT,   0,   1},
+    {"+CMER",   BTA_AG_AT_SET,                      BTA_AG_AT_STR,   0,   0},
+    {"+VTS",    BTA_AG_AT_SET,                      BTA_AG_AT_STR,   0,   0},
+    {"+BINP",   BTA_AG_AT_SET,                      BTA_AG_AT_INT,   1,   1},
+    {"+BLDN",   BTA_AG_AT_NONE,                     BTA_AG_AT_STR,   0,   0},
+    {"+BVRA",   BTA_AG_AT_SET,                      BTA_AG_AT_INT,   0,   1},
+    {"+BRSF",   BTA_AG_AT_SET,                      BTA_AG_AT_INT,   0,   BTA_AG_CMD_MAX_VAL},
+    {"+NREC",   BTA_AG_AT_SET,                      BTA_AG_AT_INT,   0,   0},
+    {"+CNUM",   BTA_AG_AT_NONE,                     BTA_AG_AT_STR,   0,   0},
+    {"+BTRH",   (BTA_AG_AT_READ | BTA_AG_AT_SET),   BTA_AG_AT_INT,   0,   2},
+    {"+CLCC",   BTA_AG_AT_NONE,                     BTA_AG_AT_STR,   0,   0},
+    {"+COPS",   (BTA_AG_AT_READ | BTA_AG_AT_SET),   BTA_AG_AT_STR,   0,   0},
+    {"+CMEE",   BTA_AG_AT_SET,                      BTA_AG_AT_INT,   0,   1},
+    {"+BIA",    BTA_AG_AT_SET,                      BTA_AG_AT_STR,   0,   20},
+    {"+CBC",    BTA_AG_AT_SET,                      BTA_AG_AT_INT,   0,   100},
+    {"+BCC",    BTA_AG_AT_NONE,                     BTA_AG_AT_STR,   0,   0},
+    {"+BCS",    BTA_AG_AT_SET,                      BTA_AG_AT_INT,   0,   BTA_AG_CMD_MAX_VAL},
+    {"+BAC",    BTA_AG_AT_SET,                      BTA_AG_AT_STR,   0,   0},
+    {"",        BTA_AG_AT_NONE,                     BTA_AG_AT_STR,   0,   0}
+};
+
+/* AT result code table element */
+typedef struct
+{
+    const char  *p_res;         /* AT result string */
+    UINT8       fmt;            /* whether argument is int or string */
+} tBTA_AG_RESULT;
+
+/* AT result code argument types */
+enum
+{
+    BTA_AG_RES_FMT_NONE,       /* no argument */
+    BTA_AG_RES_FMT_INT,        /* integer argument */
+    BTA_AG_RES_FMT_STR         /* string argument */
+};
+
+/* enumeration of AT result codes, matches constant table */
+enum
+{
+    BTA_AG_RES_OK,
+    BTA_AG_RES_ERROR,
+    BTA_AG_RES_RING,
+    BTA_AG_RES_VGS,
+    BTA_AG_RES_VGM,
+    BTA_AG_RES_CCWA,
+    BTA_AG_RES_CHLD,
+    BTA_AG_RES_CIND,
+    BTA_AG_RES_CLIP,
+    BTA_AG_RES_CIEV,
+    BTA_AG_RES_BINP,
+    BTA_AG_RES_BVRA,
+    BTA_AG_RES_BRSF,
+    BTA_AG_RES_BSIR,
+    BTA_AG_RES_CNUM,
+    BTA_AG_RES_BTRH,
+    BTA_AG_RES_CLCC,
+    BTA_AG_RES_COPS,
+    BTA_AG_RES_CMEE,
+    BTA_AG_RES_BCS,
+    BTA_AG_RES_UNAT
+};
+
+#if defined(BTA_HSP_RESULT_REPLACE_COLON) && (BTA_HSP_RESULT_REPLACE_COLON == TRUE)
+#define COLON_IDX_4_VGSVGM    4
+#endif
+/* AT result code constant table  (Indexed by result code) */
+const tBTA_AG_RESULT bta_ag_result_tbl[] =
+{
+    {"OK",      BTA_AG_RES_FMT_NONE},
+    {"ERROR",   BTA_AG_RES_FMT_NONE},
+    {"RING",    BTA_AG_RES_FMT_NONE},
+    {"+VGS: ",  BTA_AG_RES_FMT_INT},
+    {"+VGM: ",  BTA_AG_RES_FMT_INT},
+    {"+CCWA: ", BTA_AG_RES_FMT_STR},
+    {"+CHLD: ", BTA_AG_RES_FMT_STR},
+    {"+CIND: ", BTA_AG_RES_FMT_STR},
+    {"+CLIP: ", BTA_AG_RES_FMT_STR},
+    {"+CIEV: ", BTA_AG_RES_FMT_STR},
+    {"+BINP: ", BTA_AG_RES_FMT_STR},
+    {"+BVRA: ", BTA_AG_RES_FMT_INT},
+    {"+BRSF: ", BTA_AG_RES_FMT_INT},
+    {"+BSIR: ", BTA_AG_RES_FMT_INT},
+    {"+CNUM: ", BTA_AG_RES_FMT_STR},
+    {"+BTRH: ", BTA_AG_RES_FMT_INT},
+    {"+CLCC: ", BTA_AG_RES_FMT_STR},
+    {"+COPS: ", BTA_AG_RES_FMT_STR},
+    {"+CME ERROR: ", BTA_AG_RES_FMT_INT},
+    {"+BCS: ",  BTA_AG_RES_FMT_INT},
+    {"",        BTA_AG_RES_FMT_STR}
+};
+
+const tBTA_AG_AT_CMD *bta_ag_at_tbl[BTA_AG_NUM_IDX] =
+{
+    bta_ag_hsp_cmd,
+    bta_ag_hfp_cmd
+};
+
+/* callback event lookup table for HSP */
+const tBTA_AG_EVT bta_ag_hsp_cb_evt[] =
+{
+    BTA_AG_AT_CKPD_EVT,     /* BTA_AG_HS_CMD_CKPD */
+    BTA_AG_SPK_EVT,         /* BTA_AG_HS_CMD_VGS */
+    BTA_AG_MIC_EVT          /* BTA_AG_HS_CMD_VGM */
+};
+
+/* callback event lookup table for HFP  (Indexed by command) */
+const tBTA_AG_EVT bta_ag_hfp_cb_evt[] =
+{
+    BTA_AG_AT_A_EVT,        /* BTA_AG_HF_CMD_A */
+    BTA_AG_AT_D_EVT,        /* BTA_AG_HF_CMD_D */
+    BTA_AG_SPK_EVT,         /* BTA_AG_HF_CMD_VGS */
+    BTA_AG_MIC_EVT,         /* BTA_AG_HF_CMD_VGM */
+    0,                      /* BTA_AG_HF_CMD_CCWA */
+    BTA_AG_AT_CHLD_EVT,     /* BTA_AG_HF_CMD_CHLD */
+    BTA_AG_AT_CHUP_EVT,     /* BTA_AG_HF_CMD_CHUP */
+    BTA_AG_AT_CIND_EVT,     /* BTA_AG_HF_CMD_CIND */
+    0,                      /* BTA_AG_HF_CMD_CLIP */
+    0,                      /* BTA_AG_HF_CMD_CMER */
+    BTA_AG_AT_VTS_EVT,      /* BTA_AG_HF_CMD_VTS */
+    BTA_AG_AT_BINP_EVT,     /* BTA_AG_HF_CMD_BINP */
+    BTA_AG_AT_BLDN_EVT,     /* BTA_AG_HF_CMD_BLDN */
+    BTA_AG_AT_BVRA_EVT,     /* BTA_AG_HF_CMD_BVRA */
+    0,                      /* BTA_AG_HF_CMD_BRSF */
+    BTA_AG_AT_NREC_EVT,     /* BTA_AG_HF_CMD_NREC */
+    BTA_AG_AT_CNUM_EVT,     /* BTA_AG_HF_CMD_CNUM */
+    BTA_AG_AT_BTRH_EVT,     /* BTA_AG_HF_CMD_BTRH */
+    BTA_AG_AT_CLCC_EVT,     /* BTA_AG_HF_CMD_CLCC */
+    BTA_AG_AT_COPS_EVT,     /* BTA_AG_HF_CMD_COPS */
+    0,                      /* BTA_AG_HF_CMD_CMEE */
+    0,                      /* BTA_AG_HF_CMD_BIA */
+    BTA_AG_AT_CBC_EVT,      /* BTA_AG_HF_CMD_CBC */
+    0,                      /* BTA_AG_HF_CMD_BCC */
+    BTA_AG_AT_BCS_EVT,      /* BTA_AG_HF_CMD_BCS */
+    BTA_AG_AT_BAC_EVT       /* BTA_AG_HF_CMD_BAC */
+};
+
+/* translation of API result code values to internal values */
+const UINT8 bta_ag_trans_result[] =
+{
+    BTA_AG_RES_VGS,     /* BTA_AG_SPK_RES */
+    BTA_AG_RES_VGM,     /* BTA_AG_MIC_RES */
+    BTA_AG_RES_BSIR,    /* BTA_AG_INBAND_RING_RES */
+    BTA_AG_RES_CIND,    /* BTA_AG_CIND_RES */
+    BTA_AG_RES_BINP,    /* BTA_AG_BINP_RES */
+    BTA_AG_RES_CIEV,    /* BTA_AG_IND_RES */
+    BTA_AG_RES_BVRA,    /* BTA_AG_BVRA_RES */
+    BTA_AG_RES_CNUM,    /* BTA_AG_CNUM_RES */
+    BTA_AG_RES_BTRH,    /* BTA_AG_BTRH_RES */
+    BTA_AG_RES_CLCC,    /* BTA_AG_CLCC_RES */
+    BTA_AG_RES_COPS,    /* BTA_AG_COPS_RES */
+    0,                  /* BTA_AG_IN_CALL_RES */
+    0,                  /* BTA_AG_IN_CALL_CONN_RES */
+    BTA_AG_RES_CCWA,    /* BTA_AG_CALL_WAIT_RES */
+    0,                  /* BTA_AG_OUT_CALL_ORIG_RES */
+    0,                  /* BTA_AG_OUT_CALL_ALERT_RES */
+    0,                  /* BTA_AG_OUT_CALL_CONN_RES */
+    0,                  /* BTA_AG_CALL_CANCEL_RES */
+    0,                  /* BTA_AG_END_CALL_RES */
+    0,                  /* BTA_AG_IN_CALL_HELD_RES */
+    BTA_AG_RES_UNAT     /* BTA_AG_UNAT_RES */
+};
+
+/* callsetup indicator value lookup table */
+const UINT8 bta_ag_callsetup_ind_tbl[] =
+{
+    0,                          /* BTA_AG_SPK_RES */
+    0,                          /* BTA_AG_MIC_RES */
+    0,                          /* BTA_AG_INBAND_RING_RES */
+    0,                          /* BTA_AG_CIND_RES */
+    0,                          /* BTA_AG_BINP_RES */
+    0,                          /* BTA_AG_IND_RES */
+    0,                          /* BTA_AG_BVRA_RES */
+    0,                          /* BTA_AG_CNUM_RES */
+    0,                          /* BTA_AG_BTRH_RES */
+    0,                          /* BTA_AG_CLCC_RES */
+    0,                          /* BTA_AG_COPS_RES */
+    BTA_AG_CALLSETUP_INCOMING,  /* BTA_AG_IN_CALL_RES */
+    BTA_AG_CALLSETUP_NONE,      /* BTA_AG_IN_CALL_CONN_RES */
+    BTA_AG_CALLSETUP_INCOMING,  /* BTA_AG_CALL_WAIT_RES */
+    BTA_AG_CALLSETUP_OUTGOING,  /* BTA_AG_OUT_CALL_ORIG_RES */
+    BTA_AG_CALLSETUP_ALERTING,  /* BTA_AG_OUT_CALL_ALERT_RES */
+    BTA_AG_CALLSETUP_NONE,      /* BTA_AG_OUT_CALL_CONN_RES */
+    BTA_AG_CALLSETUP_NONE,      /* BTA_AG_CALL_CANCEL_RES */
+    BTA_AG_CALLSETUP_NONE,      /* BTA_AG_END_CALL_RES */
+    BTA_AG_CALLSETUP_NONE       /* BTA_AG_IN_CALL_HELD_RES */
+};
+
+/*******************************************************************************
+**
+** Function         bta_ag_send_result
+**
+** Description      Send an AT result code.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_ag_send_result(tBTA_AG_SCB *p_scb, UINT8 code, char *p_arg,
+                               INT16 int_arg)
+{
+    char    buf[BTA_AG_AT_MAX_LEN + 16];
+    char    *p = buf;
+    UINT16  len;
+
+#if defined(BTA_AG_RESULT_DEBUG) && (BTA_AG_RESULT_DEBUG == TRUE)
+    memset(buf, NULL, sizeof(buf));
+#endif
+    /* init with \r\n */
+    *p++ = '\r';
+    *p++ = '\n';
+
+    /* copy result code string */
+    strlcpy(p, bta_ag_result_tbl[code].p_res, sizeof(buf) - 2);
+#if defined(BTA_HSP_RESULT_REPLACE_COLON) && (BTA_HSP_RESULT_REPLACE_COLON == TRUE)
+    if(p_scb->conn_service == BTA_AG_HSP)
+    {
+        /* If HSP then ":"symbol should be changed as "=" for HSP compatibility */
+        switch(code)
+        {
+        case BTA_AG_RES_VGS:
+        case BTA_AG_RES_VGM:
+            if(*(p+COLON_IDX_4_VGSVGM) == ':')
+            {
+                #if defined(BTA_AG_RESULT_DEBUG) && (BTA_AG_RESULT_DEBUG == TRUE)
+                APPL_TRACE_DEBUG("[HSP] ':'symbol is changed as '=' for HSP compatibility");
+                #endif
+                *(p+COLON_IDX_4_VGSVGM) = '=';
+            }
+            break;
+        }
+    }
+#endif
+    p += strlen(bta_ag_result_tbl[code].p_res);
+
+    /* copy argument if any */
+    if (bta_ag_result_tbl[code].fmt == BTA_AG_RES_FMT_INT)
+    {
+        p += utl_itoa((UINT16) int_arg, p);
+    }
+    else if (bta_ag_result_tbl[code].fmt == BTA_AG_RES_FMT_STR)
+    {
+        strcpy(p, p_arg);
+        p += strlen(p_arg);
+    }
+
+    /* finish with \r\n */
+    *p++ = '\r';
+    *p++ = '\n';
+
+#if defined(BTA_AG_RESULT_DEBUG) && (BTA_AG_RESULT_DEBUG == TRUE)
+    APPL_TRACE_DEBUG("bta_ag_send_result: %s", buf);
+#endif
+
+    /* send to RFCOMM */
+    PORT_WriteData(p_scb->conn_handle, buf, (UINT16) (p - buf), &len);
+}
+
+#if defined(BTA_AG_MULTI_RESULT_INCLUDED) && (BTA_AG_MULTI_RESULT_INCLUDED == TRUE)
+/*******************************************************************************
+**
+** Function         bta_ag_send_multi_result
+**
+** Description      Send multiple AT result codes.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_ag_send_multi_result(tBTA_AG_SCB *p_scb, tBTA_AG_MULTI_RESULT_CB *m_res_cb)
+{
+    char    buf[BTA_AG_AT_MAX_LEN * BTA_AG_AT_MULTI_LEN + 16];
+    char    *p = buf;
+    UINT16  len;
+    UINT8   res_idx = 0;
+
+    if((!m_res_cb) || (m_res_cb->num_result == 0) || (m_res_cb->num_result > BTA_AG_AT_MULTI_LEN))
+    {
+        APPL_TRACE_DEBUG("m_res_cb is NULL or num_result is out of range.");
+        return;
+    }
+
+#if defined(BTA_AG_RESULT_DEBUG) && (BTA_AG_RESULT_DEBUG == TRUE)
+    memset(buf, NULL, sizeof(buf));
+#endif
+
+    while(res_idx < m_res_cb->num_result)
+    {
+        /* init with \r\n */
+        *p++ = '\r';
+        *p++ = '\n';
+
+        /* copy result code string */
+        strcpy(p, bta_ag_result_tbl[m_res_cb->res_cb[res_idx].code].p_res);
+        p += strlen(bta_ag_result_tbl[m_res_cb->res_cb[res_idx].code].p_res);
+
+        /* copy argument if any */
+        if (bta_ag_result_tbl[m_res_cb->res_cb[res_idx].code].fmt == BTA_AG_RES_FMT_INT)
+        {
+            p += utl_itoa((UINT16) m_res_cb->res_cb[res_idx].int_arg, p);
+        }
+        else if (bta_ag_result_tbl[m_res_cb->res_cb[res_idx].code].fmt == BTA_AG_RES_FMT_STR)
+        {
+            strcpy(p, m_res_cb->res_cb[res_idx].p_arg);
+            p += strlen(m_res_cb->res_cb[res_idx].p_arg);
+        }
+
+        /* finish with \r\n */
+        *p++ = '\r';
+        *p++ = '\n';
+
+        res_idx++;
+    }
+
+#if defined(BTA_AG_RESULT_DEBUG) && (BTA_AG_RESULT_DEBUG == TRUE)
+    APPL_TRACE_DEBUG("send_result: %s", buf);
+#endif
+
+    /* send to RFCOMM */
+    PORT_WriteData(p_scb->conn_handle, buf, (UINT16) (p - buf), &len);
+}
+#endif
+
+/*******************************************************************************
+**
+** Function         bta_ag_send_ok
+**
+** Description      Send an OK result code.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_ag_send_ok(tBTA_AG_SCB *p_scb)
+{
+    bta_ag_send_result(p_scb, BTA_AG_RES_OK, NULL, 0);
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_send_error
+**
+** Description      Send an ERROR result code.
+**                      errcode - used to send verbose errocode
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_ag_send_error(tBTA_AG_SCB *p_scb, INT16 errcode)
+{
+    /* If HFP and extended audio gateway error codes are enabled */
+    if (p_scb->conn_service == BTA_AG_HFP && p_scb->cmee_enabled)
+        bta_ag_send_result(p_scb, BTA_AG_RES_CMEE, NULL, errcode);
+    else
+        bta_ag_send_result(p_scb, BTA_AG_RES_ERROR, NULL, 0);
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_send_ind
+**
+** Description      Send an indicator CIEV result code.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_ag_send_ind(tBTA_AG_SCB *p_scb, UINT16 id, UINT16 value, BOOLEAN on_demand)
+{
+    char    str[12];
+    char    *p = str;
+
+    /* If the indicator is masked out, just return */
+    /* Mandatory indicators can not be masked out. */
+    if ((p_scb->bia_masked_out & ((UINT32)1 << id)) &&
+        ((id != BTA_AG_IND_CALL) && (id != BTA_AG_IND_CALLSETUP) && (id != BTA_AG_IND_CALLHELD)))
+        return;
+
+    /* Ensure we do not send duplicate indicators if not requested by app */
+    /* If it was requested by app, transmit CIEV even if it is duplicate. */
+    if (id == BTA_AG_IND_CALL)
+    {
+        if ((value == p_scb->call_ind) && (on_demand == FALSE))
+            return;
+
+        p_scb->call_ind = (UINT8)value;
+    }
+
+    if ((id == BTA_AG_IND_CALLSETUP) && (on_demand == FALSE))
+    {
+        if (value == p_scb->callsetup_ind)
+            return;
+
+        p_scb->callsetup_ind = (UINT8)value;
+    }
+
+    if ((id == BTA_AG_IND_SERVICE) && (on_demand == FALSE))
+    {
+        if (value == p_scb->service_ind)
+            return;
+
+        p_scb->service_ind = (UINT8)value;
+    }
+    if ((id == BTA_AG_IND_SIGNAL) && (on_demand == FALSE))
+    {
+        if (value == p_scb->signal_ind)
+            return;
+
+        p_scb->signal_ind = (UINT8)value;
+    }
+    if ((id == BTA_AG_IND_ROAM) && (on_demand == FALSE))
+    {
+        if (value == p_scb->roam_ind)
+            return;
+
+        p_scb->roam_ind = (UINT8)value;
+    }
+    if ((id == BTA_AG_IND_BATTCHG) && (on_demand == FALSE))
+    {
+        if (value == p_scb->battchg_ind)
+            return;
+
+        p_scb->battchg_ind = (UINT8)value;
+    }
+
+    if ((id == BTA_AG_IND_CALLHELD) && (on_demand == FALSE))
+    {
+        /* call swap could result in sending callheld=1 multiple times */
+        if ((value != 1) && (value == p_scb->callheld_ind))
+            return;
+
+        p_scb->callheld_ind = (UINT8)value;
+    }
+
+    if (p_scb->cmer_enabled)
+    {
+        p += utl_itoa(id, p);
+        *p++ = ',';
+        utl_itoa(value, p);
+        bta_ag_send_result(p_scb, BTA_AG_RES_CIEV, str, 0);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_parse_cmer
+**
+** Description      Parse AT+CMER parameter string.
+**
+**
+** Returns          TRUE if parsed ok, FALSE otherwise.
+**
+*******************************************************************************/
+static BOOLEAN bta_ag_parse_cmer(char *p_s, BOOLEAN *p_enabled)
+{
+    INT16   n[4] = {-1, -1, -1, -1};
+    int     i;
+    char    *p;
+
+    for (i = 0; i < 4; i++)
+    {
+        /* skip to comma delimiter */
+        for (p = p_s; *p != ',' && *p != 0; p++);
+
+        /* get integer value */
+        *p = 0;
+        n[i] = utl_str2int(p_s);
+        p_s = p + 1;
+        if (p_s == 0)
+        {
+            break;
+        }
+    }
+
+    /* process values */
+    if (n[0] < 0 || n[3] < 0)
+    {
+        return FALSE;
+    }
+
+    if ((n[0] == 3) && ((n[3] == 1) || (n[3] == 0)))
+    {
+        *p_enabled = (BOOLEAN) n[3];
+    }
+
+    return TRUE;
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_parse_chld
+**
+** Description      Parse AT+CHLD parameter string.
+**
+**
+** Returns          Returns idx (1-7), 0 if ECC not enabled or BTA_AG_INVALID_CHLD
+                    if idx doesn't exist/1st character of argument is not a digit
+**
+*******************************************************************************/
+static UINT8 bta_ag_parse_chld(tBTA_AG_SCB *p_scb, char *p_s)
+{
+    UINT8   retval = 0;
+    INT16   idx = -1;
+    UNUSED(p_scb);
+
+    if (!isdigit(p_s[0]))
+    {
+        return BTA_AG_INVALID_CHLD;
+    }
+
+    if (p_s[1] != 0)
+    {
+        /* p_idxstr++;  point to beginning of call number */
+        idx = utl_str2int(&p_s[1]);
+        if (idx != -1 && idx < 255)
+        {
+            retval = (UINT8)idx;
+        }
+        else
+        {
+            retval = BTA_AG_INVALID_CHLD;
+        }
+    }
+
+    return (retval);
+}
+
+#if (BTM_WBS_INCLUDED == TRUE )
+/*******************************************************************************
+**
+** Function         bta_ag_parse_bac
+**
+** Description      Parse AT+BAC parameter string.
+**
+** Returns          Returns bitmap of supported codecs.
+**
+*******************************************************************************/
+static tBTA_AG_PEER_CODEC bta_ag_parse_bac(tBTA_AG_SCB *p_scb, char *p_s)
+{
+    tBTA_AG_PEER_CODEC  retval = BTA_AG_CODEC_NONE;
+    UINT16  uuid_codec;
+    BOOLEAN cont = FALSE;       /* Continue processing */
+    char *p;
+
+    while(p_s)
+    {
+        /* skip to comma delimiter */
+        for(p = p_s; *p != ',' && *p != 0; p++);
+
+        /* get integre value */
+        if (*p != 0)
+        {
+            *p = 0;
+            cont = TRUE;
+        }
+        else
+            cont = FALSE;
+
+        uuid_codec = utl_str2int(p_s);
+        switch(uuid_codec)
+        {
+            case UUID_CODEC_CVSD:   retval |= BTA_AG_CODEC_CVSD;     break;
+            case UUID_CODEC_MSBC:   retval |= BTA_AG_CODEC_MSBC;     break;
+            default:
+                APPL_TRACE_ERROR("Unknown Codec UUID(%d) received", uuid_codec);
+                break;
+        }
+
+        if (cont)
+            p_s = p + 1;
+        else
+            break;
+    }
+
+    return (retval);
+}
+#endif
+
+/*******************************************************************************
+**
+** Function         bta_ag_process_unat_res
+**
+** Description      Process the unat response data and remove extra carriage return
+**                  and line feed
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+
+static void bta_ag_process_unat_res(char *unat_result)
+{
+    UINT8   str_leng;
+    UINT8   i = 0;
+    UINT8   j = 0;
+    UINT8   pairs_of_nl_cr;
+    char    trim_data[BTA_AG_AT_MAX_LEN];
+
+
+
+    str_leng = strlen(unat_result);
+
+    /* If no extra CR and LF, just return */
+    if(str_leng < 4)
+        return;
+
+    /* Remove the carriage return and left feed */
+    while(unat_result[0] =='\r' && unat_result[1] =='\n'
+        && unat_result[str_leng-2] =='\r' && unat_result[str_leng-1] =='\n')
+    {
+        pairs_of_nl_cr = 1;
+        for (i=0;i<(str_leng-4*pairs_of_nl_cr);i++)
+        {
+            trim_data[j++] = unat_result[i+pairs_of_nl_cr*2];
+        }
+        /* Add EOF */
+        trim_data[j] = '\0';
+        str_leng = str_leng - 4;
+        strlcpy(unat_result, trim_data, str_leng+1);
+        i=0;
+        j=0;
+
+        if(str_leng <4)
+            return;
+
+
+    }
+    return;
+}
+
+
+/*******************************************************************************
+**
+** Function         bta_ag_inband_enabled
+**
+** Description      Determine whether in-band ring can be used.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+BOOLEAN bta_ag_inband_enabled(tBTA_AG_SCB *p_scb)
+{
+    /* if feature is enabled and no other scbs connected */
+    if (p_scb->inband_enabled && !bta_ag_other_scb_open(p_scb))
+    {
+        return TRUE;
+    }
+    else
+    {
+        return FALSE;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_send_call_inds
+**
+** Description      Send call and callsetup indicators.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_ag_send_call_inds(tBTA_AG_SCB *p_scb, tBTA_AG_RES result)
+{
+    UINT8 call = p_scb->call_ind;
+    UINT8 callsetup;
+
+    /* set new call and callsetup values based on BTA_AgResult */
+    callsetup = bta_ag_callsetup_ind_tbl[result];
+
+    if (result == BTA_AG_END_CALL_RES)
+    {
+        call = BTA_AG_CALL_INACTIVE;
+    }
+    else if (result == BTA_AG_IN_CALL_CONN_RES || result == BTA_AG_OUT_CALL_CONN_RES
+             || result == BTA_AG_IN_CALL_HELD_RES)
+    {
+        call = BTA_AG_CALL_ACTIVE;
+    }
+    else
+    {
+        call = p_scb->call_ind;
+    }
+
+    /* Send indicator function tracks if the values have actually changed */
+    bta_ag_send_ind(p_scb, BTA_AG_IND_CALL, call, FALSE);
+    bta_ag_send_ind(p_scb, BTA_AG_IND_CALLSETUP, callsetup, FALSE);
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_at_hsp_cback
+**
+** Description      AT command processing callback for HSP.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_ag_at_hsp_cback(tBTA_AG_SCB *p_scb, UINT16 cmd, UINT8 arg_type,
+                                char *p_arg, INT16 int_arg)
+{
+    tBTA_AG_VAL val;
+
+    APPL_TRACE_DEBUG("AT cmd:%d arg_type:%d arg:%d arg:%s", cmd, arg_type,
+                      int_arg, p_arg);
+
+    /* send OK */
+    bta_ag_send_ok(p_scb);
+
+    val.hdr.handle = bta_ag_scb_to_idx(p_scb);
+    val.hdr.app_id = p_scb->app_id;
+    val.num = (UINT16) int_arg;
+    strlcpy(val.str, p_arg, BTA_AG_AT_MAX_LEN);
+
+    /* call callback with event */
+    (*bta_ag_cb.p_cback)(bta_ag_hsp_cb_evt[cmd], (tBTA_AG *) &val);
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_at_hfp_cback
+**
+** Description      AT command processing callback for HFP.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_ag_at_hfp_cback(tBTA_AG_SCB *p_scb, UINT16 cmd, UINT8 arg_type,
+                                char *p_arg, INT16 int_arg)
+{
+    tBTA_AG_VAL     val;
+    tBTA_AG_EVT   event;
+    tBTA_AG_SCB     *ag_scb;
+    UINT32          i, ind_id;
+    UINT32          bia_masked_out;
+#if (BTM_WBS_INCLUDED == TRUE )
+    tBTA_AG_PEER_CODEC  codec_type, codec_sent;
+#endif
+    if (p_arg == NULL)
+    {
+        APPL_TRACE_ERROR("%s: p_arg is null, send error and return", __func__);
+        bta_ag_send_error(p_scb, BTA_AG_ERR_INV_CHAR_IN_TSTR);
+        return;
+    }
+
+    APPL_TRACE_DEBUG("HFP AT cmd:%d arg_type:%d arg:%d arg:%s", cmd, arg_type,
+                      int_arg, p_arg);
+
+    val.hdr.handle = bta_ag_scb_to_idx(p_scb);
+    val.hdr.app_id = p_scb->app_id;
+    val.num = int_arg;
+    bdcpy(val.bd_addr, p_scb->peer_addr);
+    strlcpy(val.str, p_arg, BTA_AG_AT_MAX_LEN);
+
+    event = bta_ag_hfp_cb_evt[cmd];
+
+    switch (cmd)
+    {
+        case BTA_AG_HF_CMD_A:
+        case BTA_AG_HF_CMD_VGS:
+        case BTA_AG_HF_CMD_VGM:
+        case BTA_AG_HF_CMD_CHUP:
+        case BTA_AG_HF_CMD_CBC:
+            /* send OK */
+            bta_ag_send_ok(p_scb);
+            break;
+
+        case BTA_AG_HF_CMD_BLDN:
+            /* Do not send OK, App will send error or OK depending on
+            ** last dial number enabled or not */
+            break;
+
+        case BTA_AG_HF_CMD_D:
+            /* Do not send OK for Dial cmds
+            ** Let application decide whether to send OK or ERROR*/
+
+            /* if mem dial cmd, make sure string contains only digits */
+            if(p_arg[0] == '>')
+            {
+                if(!utl_isintstr(p_arg+1))
+                {
+                    event = 0;
+                    bta_ag_send_error(p_scb, BTA_AG_ERR_INV_CHAR_IN_DSTR);
+                }
+            }
+            else if (p_arg[0] == 'V')   /* ATDV : Dial VoIP Call */
+            {
+                /* We do not check string. Code will be added later if needed. */
+                if(!((p_scb->peer_features & BTA_AG_PEER_FEAT_VOIP) && (p_scb->features & BTA_AG_FEAT_VOIP)))
+                {
+                    event = 0;
+                    bta_ag_send_error(p_scb, BTA_AG_ERR_OP_NOT_SUPPORTED);
+                }
+            }
+            /* If dial cmd, make sure string contains only dial digits
+            ** Dial digits are 0-9, A-C, *, #, + */
+            else
+            {
+                if(!utl_isdialstr(p_arg))
+                {
+                    event = 0;
+                    bta_ag_send_error(p_scb, BTA_AG_ERR_INV_CHAR_IN_DSTR);
+                }
+            }
+            break;
+
+        case BTA_AG_HF_CMD_CCWA:
+            /* store setting */
+            p_scb->ccwa_enabled = (BOOLEAN) int_arg;
+
+            /* send OK */
+            bta_ag_send_ok(p_scb);
+            break;
+
+        case BTA_AG_HF_CMD_CHLD:
+            if (arg_type == BTA_AG_AT_TEST)
+            {
+                /* don't call callback */
+                event = 0;
+
+                /* send CHLD string */
+                /* Form string based on supported 1.5 feature */
+                if ((p_scb->peer_version >= HFP_VERSION_1_5) &&
+                    (p_scb->features & BTA_AG_FEAT_ECC) &&
+                    (p_scb->peer_features & BTA_AG_PEER_FEAT_ECC))
+                    bta_ag_send_result(p_scb, BTA_AG_RES_CHLD, p_bta_ag_cfg->chld_val_ecc, 0);
+                else
+                    bta_ag_send_result(p_scb, BTA_AG_RES_CHLD, p_bta_ag_cfg->chld_val, 0);
+
+                /* send OK */
+                bta_ag_send_ok(p_scb);
+
+                /* if service level conn. not already open, now it's open */
+                bta_ag_svc_conn_open(p_scb, NULL);
+
+            }
+            else
+            {
+                val.idx = bta_ag_parse_chld(p_scb, val.str);
+
+                if (val.idx == BTA_AG_INVALID_CHLD)
+                {
+                    event = 0;
+                    bta_ag_send_error(p_scb, BTA_AG_ERR_OP_NOT_SUPPORTED);
+                    break;
+                }
+                if(val.idx && !((p_scb->features & BTA_AG_FEAT_ECC) && (p_scb->peer_features & BTA_AG_PEER_FEAT_ECC)))
+                {
+                    /* we do not support ECC, but HF is sending us a CHLD with call index*/
+                    event = 0;
+                    bta_ag_send_error(p_scb, BTA_AG_ERR_OP_NOT_SUPPORTED);
+
+                }
+                else
+                {
+
+                /* If it is swap between calls, set call held indicator to 3(out of valid 0-2)
+                ** Application will set it back to 1
+                ** callheld indicator will be sent across to the peer. */
+                if(val.str[0] == '2')
+                {
+                    for (i = 0, ag_scb = &bta_ag_cb.scb[0]; i < BTA_AG_NUM_SCB; i++, ag_scb++)
+                    {
+                        if (ag_scb->in_use)
+                        {
+                            if((ag_scb->call_ind == BTA_AG_CALL_ACTIVE)
+                                && (ag_scb->callsetup_ind == BTA_AG_CALLSETUP_NONE))
+                                ag_scb->callheld_ind = BTA_AG_CALLHELD_NOACTIVE + 1;
+                        }
+                    }
+                }
+                }
+
+                /* Do not send OK. Let app decide after parsing the val str */
+                /* bta_ag_send_ok(p_scb); */
+            }
+            break;
+
+        case BTA_AG_HF_CMD_CIND:
+            if (arg_type == BTA_AG_AT_TEST)
+            {
+                /* don't call callback */
+                event = 0;
+
+                /* send CIND string, send OK */
+                bta_ag_send_result(p_scb, BTA_AG_RES_CIND, p_bta_ag_cfg->cind_info, 0);
+                bta_ag_send_ok(p_scb);
+            }
+            break;
+
+        case BTA_AG_HF_CMD_CLIP:
+            /* store setting, send OK */
+            p_scb->clip_enabled = (BOOLEAN) int_arg;
+            bta_ag_send_ok(p_scb);
+            break;
+
+        case BTA_AG_HF_CMD_CMER:
+            /* if parsed ok store setting, send OK */
+            if (bta_ag_parse_cmer(p_arg, &p_scb->cmer_enabled))
+            {
+                bta_ag_send_ok(p_scb);
+
+                /* if service level conn. not already open and our features and
+                ** peer features do not have 3-way, service level conn. now open
+                */
+                if (!p_scb->svc_conn &&
+                    !((p_scb->features & BTA_AG_FEAT_3WAY) && (p_scb->peer_features & BTA_AG_PEER_FEAT_3WAY)))
+                {
+                    bta_ag_svc_conn_open(p_scb, NULL);
+                }
+            }
+            else
+            {
+                bta_ag_send_error(p_scb, BTA_AG_ERR_INV_CHAR_IN_TSTR);
+            }
+            break;
+
+        case BTA_AG_HF_CMD_VTS:
+            /* check argument */
+            if (strlen(p_arg) == 1)
+            {
+                bta_ag_send_ok(p_scb);
+            }
+            else
+            {
+                event = 0;
+                bta_ag_send_error(p_scb, BTA_AG_ERR_INV_CHAR_IN_TSTR);
+            }
+            break;
+
+        case BTA_AG_HF_CMD_BINP:
+            /* if feature not set don't call callback, send ERROR */
+            if (!(p_scb->features & BTA_AG_FEAT_VTAG))
+            {
+                event = 0;
+                bta_ag_send_error(p_scb, BTA_AG_ERR_OP_NOT_SUPPORTED);
+            }
+            break;
+
+        case BTA_AG_HF_CMD_BVRA:
+            /* if feature not supported don't call callback, send ERROR. App will send OK */
+            if (!(p_scb->features & BTA_AG_FEAT_VREC))
+            {
+                event = 0;
+                bta_ag_send_error(p_scb, BTA_AG_ERR_OP_NOT_SUPPORTED);
+            }
+            break;
+
+        case BTA_AG_HF_CMD_BRSF:
+            /* store peer features */
+            p_scb->peer_features = (UINT16) int_arg;
+
+            /* send BRSF, send OK */
+            bta_ag_send_result(p_scb, BTA_AG_RES_BRSF, NULL,
+                               (INT16) (p_scb->features & BTA_AG_BSRF_FEAT_SPEC));
+            bta_ag_send_ok(p_scb);
+            break;
+
+        case BTA_AG_HF_CMD_NREC:
+            /* if feature send OK, else don't call callback, send ERROR */
+            if (p_scb->features & BTA_AG_FEAT_ECNR)
+            {
+                bta_ag_send_ok(p_scb);
+            }
+            else
+            {
+                event = 0;
+                bta_ag_send_error(p_scb, BTA_AG_ERR_OP_NOT_SUPPORTED);
+            }
+            break;
+
+        case BTA_AG_HF_CMD_BTRH:
+            /* if feature send BTRH, send OK:, else don't call callback, send ERROR */
+            if (p_scb->features & BTA_AG_FEAT_BTRH)
+            {
+                /* If set command; send response and notify app */
+                if (arg_type == BTA_AG_AT_SET)
+                {
+                    for (i = 0, ag_scb = &bta_ag_cb.scb[0]; i < BTA_AG_NUM_SCB; i++, ag_scb++)
+                    {
+                        if (ag_scb->in_use)
+                        {
+                            bta_ag_send_result(ag_scb, BTA_AG_RES_BTRH, NULL, int_arg);
+                        }
+                    }
+                    bta_ag_send_ok(p_scb);
+                }
+                else /* Read Command */
+                {
+                    val.num = BTA_AG_BTRH_READ;
+                }
+            }
+            else
+            {
+                event = 0;
+                bta_ag_send_error(p_scb, BTA_AG_ERR_OP_NOT_SUPPORTED);
+            }
+            break;
+
+        case BTA_AG_HF_CMD_COPS:
+            if (arg_type == BTA_AG_AT_SET)
+            {
+                /* don't call callback */
+                event = 0;
+
+                /* send OK */
+                bta_ag_send_ok(p_scb);
+            }
+            break;
+
+        case BTA_AG_HF_CMD_CMEE:
+            if (p_scb->features & BTA_AG_FEAT_EXTERR)
+            {
+                /* store setting */
+                p_scb->cmee_enabled = (BOOLEAN) int_arg;
+
+                /* send OK */
+                bta_ag_send_ok(p_scb);
+            }
+            else
+            {
+                bta_ag_send_error(p_scb, BTA_AG_ERR_OP_NOT_SUPPORTED);
+            }
+            /* don't call callback */
+            event = 0;
+            break;
+
+        case BTA_AG_HF_CMD_BIA:
+            /* don't call callback */
+            event = 0;
+
+            bia_masked_out = p_scb->bia_masked_out;
+
+            /* Parse the indicator mask */
+            for (i = 0, ind_id = 1; (val.str[i] != 0) && (ind_id <= 20); i++, ind_id++)
+            {
+                if (val.str[i] == ',')
+                    continue;
+
+                if (val.str[i] == '0')
+                    bia_masked_out |= ((UINT32)1 << ind_id);
+                else if (val.str[i] == '1')
+                    bia_masked_out &= ~((UINT32)1 << ind_id);
+                else
+                    break;
+
+                i++;
+                if ( (val.str[i] != 0) && (val.str[i] != ',') )
+                    break;
+            }
+            if (val.str[i] == 0)
+            {
+                p_scb->bia_masked_out = bia_masked_out;
+                bta_ag_send_ok (p_scb);
+            }
+            else
+                bta_ag_send_error (p_scb, BTA_AG_ERR_INVALID_INDEX);
+            break;
+
+        case BTA_AG_HF_CMD_CNUM:
+            break;
+        case BTA_AG_HF_CMD_CLCC:
+            if(!(p_scb->features & BTA_AG_FEAT_ECS))
+            {
+                event = 0;
+                bta_ag_send_error(p_scb, BTA_AG_ERR_OP_NOT_SUPPORTED);
+            }
+            break;
+
+#if (BTM_WBS_INCLUDED == TRUE )
+        case BTA_AG_HF_CMD_BAC:
+            bta_ag_send_ok(p_scb);
+
+            /* store available codecs from the peer */
+            if((p_scb->peer_features & BTA_AG_PEER_FEAT_CODEC) && (p_scb->features & BTA_AG_FEAT_CODEC))
+            {
+                p_scb->peer_codecs = bta_ag_parse_bac(p_scb, p_arg);
+                p_scb->codec_updated = TRUE;
+
+                if (p_scb->peer_codecs & BTA_AG_CODEC_MSBC)
+                {
+                    p_scb->sco_codec = UUID_CODEC_MSBC;
+                    APPL_TRACE_DEBUG("Received AT+BAC, updating sco codec to MSBC");
+                }
+                else
+                {
+                    p_scb->sco_codec = UUID_CODEC_CVSD;
+                    APPL_TRACE_DEBUG("Received AT+BAC, updating sco codec to CVSD");
+                }
+                /* The above logic sets the stack preferred codec based on local and peer codec
+                capabilities. This can be overridden by the application depending on its preference
+                using the bta_ag_setcodec API. We send the peer_codecs to the application. */
+                val.num = p_scb->peer_codecs;
+                /* Received BAC while in codec negotiation. */
+                if ((bta_ag_cb.sco.state == BTA_AG_SCO_CODEC_ST) && (bta_ag_cb.sco.p_curr_scb == p_scb))
+                {
+                    bta_ag_codec_negotiate (p_scb);
+                }
+            }
+            else
+            {
+                p_scb->peer_codecs = BTA_AG_CODEC_CVSD;
+                APPL_TRACE_ERROR("Unexpected CMD:AT+BAC, Codec Negotiation is not supported");
+            }
+            break;
+
+        case BTA_AG_HF_CMD_BCS:
+            bta_ag_send_ok(p_scb);
+            alarm_cancel(p_scb->codec_negotiation_timer);
+
+            switch(int_arg)
+            {
+                case UUID_CODEC_CVSD:   codec_type = BTA_AG_CODEC_CVSD;     break;
+                case UUID_CODEC_MSBC:   codec_type = BTA_AG_CODEC_MSBC;     break;
+                default:
+                    APPL_TRACE_ERROR("Unknown codec_uuid %d", int_arg);
+                    codec_type = 0xFFFF;
+                    break;
+            }
+
+            if (p_scb->codec_fallback)
+                codec_sent = BTA_AG_CODEC_CVSD;
+            else
+                codec_sent = p_scb->sco_codec;
+
+            if(codec_type == codec_sent)
+                bta_ag_sco_codec_nego(p_scb, TRUE);
+            else
+                bta_ag_sco_codec_nego(p_scb, FALSE);
+
+            /* send final codec info to callback */
+            val.num = codec_sent;
+            break;
+
+        case BTA_AG_HF_CMD_BCC:
+            bta_ag_send_ok(p_scb);
+            bta_ag_sco_open(p_scb, NULL);
+            break;
+#endif
+
+        default:
+            bta_ag_send_error(p_scb, BTA_AG_ERR_OP_NOT_SUPPORTED);
+            break;
+    }
+
+    /* call callback */
+    if (event != 0)
+    {
+        (*bta_ag_cb.p_cback)(event, (tBTA_AG *) &val);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_at_err_cback
+**
+** Description      AT command parser error callback.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_ag_at_err_cback(tBTA_AG_SCB *p_scb, BOOLEAN unknown, char *p_arg)
+{
+    tBTA_AG_VAL     val;
+
+    if(unknown && (!strlen(p_arg)))
+    {
+        APPL_TRACE_DEBUG("Empty AT cmd string received");
+        bta_ag_send_ok(p_scb);
+        return;
+    }
+
+    /* if unknown AT command and configured to pass these to app */
+    if (unknown && (p_scb->features & BTA_AG_FEAT_UNAT))
+    {
+        val.hdr.handle = bta_ag_scb_to_idx(p_scb);
+        val.hdr.app_id = p_scb->app_id;
+        val.num = 0;
+        strlcpy(val.str, p_arg, BTA_AG_AT_MAX_LEN);
+        (*bta_ag_cb.p_cback)(BTA_AG_AT_UNAT_EVT, (tBTA_AG *) &val);
+    }
+    else
+    {
+        bta_ag_send_error(p_scb, BTA_AG_ERR_OP_NOT_SUPPORTED);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_hsp_result
+**
+** Description      Handle API result for HSP connections.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_ag_hsp_result(tBTA_AG_SCB *p_scb, tBTA_AG_API_RESULT *p_result)
+{
+    UINT8 code = bta_ag_trans_result[p_result->result];
+
+    APPL_TRACE_DEBUG("bta_ag_hsp_result : res = %d", p_result->result);
+
+    switch(p_result->result)
+    {
+        case BTA_AG_SPK_RES:
+        case BTA_AG_MIC_RES:
+            bta_ag_send_result(p_scb, code, NULL, p_result->data.num);
+            break;
+
+        case BTA_AG_IN_CALL_RES:
+            /* tell sys to stop av if any */
+            bta_sys_sco_use(BTA_ID_AG, p_scb->app_id, p_scb->peer_addr);
+
+            /* if sco already opened or no inband ring send ring now */
+            if (bta_ag_sco_is_open(p_scb) || !bta_ag_inband_enabled(p_scb) ||
+                (p_scb->features & BTA_AG_FEAT_NOSCO))
+            {
+                bta_ag_send_ring(p_scb, (tBTA_AG_DATA *) p_result);
+            }
+            /* else open sco, send ring after sco opened */
+            else
+            {
+                /* HSPv1.2: AG shall not send RING if using in-band ring tone. */
+                if (p_scb->hsp_version >= HSP_VERSION_1_2)
+                    p_scb->post_sco = BTA_AG_POST_SCO_NONE;
+                else
+                    p_scb->post_sco = BTA_AG_POST_SCO_RING;
+
+                bta_ag_sco_open(p_scb, (tBTA_AG_DATA *) p_result);
+            }
+            break;
+
+        case BTA_AG_IN_CALL_CONN_RES:
+        case BTA_AG_OUT_CALL_ORIG_RES:
+            /* if incoming call connected stop ring timer */
+            if (p_result->result == BTA_AG_IN_CALL_CONN_RES)
+            {
+                alarm_cancel(p_scb->ring_timer);
+            }
+
+            if (!(p_scb->features & BTA_AG_FEAT_NOSCO))
+            {
+                /* if audio connected to this scb open sco */
+                if (p_result->data.audio_handle == bta_ag_scb_to_idx(p_scb))
+                {
+                    bta_ag_sco_open(p_scb, (tBTA_AG_DATA *) p_result);
+                }
+                /* else if no audio at call close sco */
+                else if (p_result->data.audio_handle == BTA_AG_HANDLE_NONE)
+                {
+                    bta_ag_sco_close(p_scb, (tBTA_AG_DATA *) p_result);
+                }
+            }
+            break;
+
+        case BTA_AG_END_CALL_RES:
+            alarm_cancel(p_scb->ring_timer);
+
+            /* close sco */
+            if ((bta_ag_sco_is_open(p_scb) || bta_ag_sco_is_opening(p_scb)) && !(p_scb->features & BTA_AG_FEAT_NOSCO))
+            {
+                bta_ag_sco_close(p_scb, (tBTA_AG_DATA *) p_result);
+            }
+            else
+            {
+                /* if av got suspended by this call, let it resume. */
+                bta_sys_sco_unuse(BTA_ID_AG, p_scb->app_id, p_scb->peer_addr);
+            }
+            break;
+
+        case BTA_AG_INBAND_RING_RES:
+            p_scb->inband_enabled = p_result->data.state;
+            APPL_TRACE_DEBUG("inband_enabled set to %d", p_scb->inband_enabled);
+            break;
+
+        case BTA_AG_UNAT_RES:
+            if (p_result->data.ok_flag != BTA_AG_OK_ERROR)
+            {
+                if (p_result->data.str[0] != 0)
+                {
+                    bta_ag_send_result(p_scb, code, p_result->data.str, 0);
+                }
+
+                if (p_result->data.ok_flag == BTA_AG_OK_DONE)
+                    bta_ag_send_ok(p_scb);
+            }
+            else
+            {
+                bta_ag_send_error(p_scb, BTA_AG_ERR_INV_CHAR_IN_TSTR);
+            }
+            break;
+
+        default:
+            /* ignore all others */
+            break;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_hfp_result
+**
+** Description      Handle API result for HFP connections.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_ag_hfp_result(tBTA_AG_SCB *p_scb, tBTA_AG_API_RESULT *p_result)
+{
+    UINT8 code = bta_ag_trans_result[p_result->result];
+
+    APPL_TRACE_DEBUG("bta_ag_hfp_result : res = %d", p_result->result);
+
+    switch(p_result->result)
+    {
+        case BTA_AG_SPK_RES:
+        case BTA_AG_MIC_RES:
+            bta_ag_send_result(p_scb, code, NULL, p_result->data.num);
+            break;
+
+        case BTA_AG_IN_CALL_RES:
+            /* tell sys to stop av if any */
+            bta_sys_sco_use(BTA_ID_AG, p_scb->app_id, p_scb->peer_addr);
+
+            /* store caller id string.
+             * append type info at the end.
+             * make sure a valid type info is passed.
+             * otherwise add 129 as default type */
+            if ((p_result->data.num < BTA_AG_CLIP_TYPE_MIN) || (p_result->data.num > BTA_AG_CLIP_TYPE_MAX))
+            {
+                if (p_result->data.num != BTA_AG_CLIP_TYPE_VOIP)
+                    p_result->data.num = BTA_AG_CLIP_TYPE_DEFAULT;
+            }
+
+            APPL_TRACE_DEBUG("CLIP type :%d", p_result->data.num);
+            p_scb->clip[0] = 0;
+            if (p_result->data.str[0] != 0)
+                snprintf(p_scb->clip, sizeof(p_scb->clip), "%s,%d", p_result->data.str, p_result->data.num);
+
+            /* send callsetup indicator */
+            if (p_scb->post_sco == BTA_AG_POST_SCO_CALL_END)
+            {
+                /* Need to sent 2 callsetup IND's(Call End and Incoming call) after SCO close. */
+                p_scb->post_sco = BTA_AG_POST_SCO_CALL_END_INCALL;
+            }
+            else
+            {
+                bta_ag_send_call_inds(p_scb, p_result->result);
+
+                /* if sco already opened or no inband ring send ring now */
+                if (bta_ag_sco_is_open(p_scb) || !bta_ag_inband_enabled(p_scb) ||
+                    (p_scb->features & BTA_AG_FEAT_NOSCO))
+                {
+                    bta_ag_send_ring(p_scb, (tBTA_AG_DATA *) p_result);
+                }
+                /* else open sco, send ring after sco opened */
+                else
+                {
+                    p_scb->post_sco = BTA_AG_POST_SCO_RING;
+                    bta_ag_sco_open(p_scb, (tBTA_AG_DATA *) p_result);
+                }
+            }
+            break;
+
+        case BTA_AG_IN_CALL_CONN_RES:
+            alarm_cancel(p_scb->ring_timer);
+
+            /* if sco not opened and we need to open it, send indicators first
+            ** then  open sco.
+            */
+            bta_ag_send_call_inds(p_scb, p_result->result);
+
+            if (!(p_scb->features & BTA_AG_FEAT_NOSCO))
+            {
+                if (p_result->data.audio_handle == bta_ag_scb_to_idx(p_scb))
+                {
+                    bta_ag_sco_open(p_scb, (tBTA_AG_DATA *) p_result);
+                }
+                else if ((p_result->data.audio_handle == BTA_AG_HANDLE_NONE) &&
+                        bta_ag_sco_is_open(p_scb))
+                {
+                    bta_ag_sco_close(p_scb, (tBTA_AG_DATA *) p_result);
+                }
+            }
+            break;
+
+        case BTA_AG_IN_CALL_HELD_RES:
+            alarm_cancel(p_scb->ring_timer);
+
+            bta_ag_send_call_inds(p_scb, p_result->result);
+
+            break;
+
+        case BTA_AG_OUT_CALL_ORIG_RES:
+            bta_ag_send_call_inds(p_scb, p_result->result);
+            if (p_result->data.audio_handle == bta_ag_scb_to_idx(p_scb) &&
+                !(p_scb->features & BTA_AG_FEAT_NOSCO))
+            {
+                bta_ag_sco_open(p_scb, (tBTA_AG_DATA *) p_result);
+            }
+            break;
+
+        case BTA_AG_OUT_CALL_ALERT_RES:
+            /* send indicators */
+            bta_ag_send_call_inds(p_scb, p_result->result);
+            if (p_result->data.audio_handle == bta_ag_scb_to_idx(p_scb) &&
+                !(p_scb->features & BTA_AG_FEAT_NOSCO))
+            {
+                bta_ag_sco_open(p_scb, (tBTA_AG_DATA *) p_result);
+            }
+            break;
+
+        case BTA_AG_MULTI_CALL_RES:
+            /* open SCO at SLC for this three way call */
+            APPL_TRACE_DEBUG("Headset Connected in three way call");
+            if (!(p_scb->features & BTA_AG_FEAT_NOSCO))
+            {
+                if (p_result->data.audio_handle == bta_ag_scb_to_idx(p_scb))
+                    bta_ag_sco_open(p_scb, (tBTA_AG_DATA *) p_result);
+                else if (p_result->data.audio_handle == BTA_AG_HANDLE_NONE)
+                    bta_ag_sco_close(p_scb, (tBTA_AG_DATA *) p_result);
+            }
+            break;
+
+        case BTA_AG_OUT_CALL_CONN_RES:
+            /* send indicators */
+            bta_ag_send_call_inds(p_scb, p_result->result);
+
+            /* open or close sco */
+            if (!(p_scb->features & BTA_AG_FEAT_NOSCO))
+            {
+                if (p_result->data.audio_handle == bta_ag_scb_to_idx(p_scb))
+                {
+                    bta_ag_sco_open(p_scb, (tBTA_AG_DATA *) p_result);
+                }
+                else if (p_result->data.audio_handle == BTA_AG_HANDLE_NONE)
+                {
+                    bta_ag_sco_close(p_scb, (tBTA_AG_DATA *) p_result);
+                }
+            }
+            break;
+
+        case BTA_AG_CALL_CANCEL_RES:
+            /* send indicators */
+            bta_ag_send_call_inds(p_scb, p_result->result);
+            break;
+
+        case BTA_AG_END_CALL_RES:
+            alarm_cancel(p_scb->ring_timer);
+
+            /* if sco open, close sco then send indicator values */
+            if ((bta_ag_sco_is_open(p_scb) || bta_ag_sco_is_opening(p_scb)) && !(p_scb->features & BTA_AG_FEAT_NOSCO))
+            {
+                p_scb->post_sco = BTA_AG_POST_SCO_CALL_END;
+                bta_ag_sco_close(p_scb, (tBTA_AG_DATA *) p_result);
+            }
+            else if (p_scb->post_sco == BTA_AG_POST_SCO_CALL_END_INCALL)
+            {
+                /* sco closing for outgoing call because of incoming call */
+                /* Send only callsetup end indicator after sco close */
+                p_scb->post_sco = BTA_AG_POST_SCO_CALL_END;
+            }
+            else
+            {
+                bta_ag_send_call_inds(p_scb, p_result->result);
+
+                /* if av got suspended by this call, let it resume. */
+                bta_sys_sco_unuse(BTA_ID_AG, p_scb->app_id, p_scb->peer_addr);
+            }
+            break;
+
+        case BTA_AG_INBAND_RING_RES:
+            p_scb->inband_enabled = p_result->data.state;
+            APPL_TRACE_DEBUG("inband_enabled set to %d", p_scb->inband_enabled);
+            bta_ag_send_result(p_scb, code, NULL, p_result->data.state);
+            break;
+
+        case BTA_AG_CIND_RES:
+            /* store local values */
+            p_scb->call_ind = p_result->data.str[0] - '0';
+            p_scb->callsetup_ind = p_result->data.str[2] - '0';
+            p_scb->service_ind = p_result->data.str[4] - '0';
+            p_scb->signal_ind = p_result->data.str[6] - '0';
+            p_scb->roam_ind = p_result->data.str[8] - '0';
+            p_scb->battchg_ind = p_result->data.str[10] - '0';
+            p_scb->callheld_ind = p_result->data.str[12] - '0';
+            APPL_TRACE_DEBUG("cind call:%d callsetup:%d", p_scb->call_ind, p_scb->callsetup_ind);
+
+            bta_ag_send_result(p_scb, code, p_result->data.str, 0);
+            bta_ag_send_ok(p_scb);
+            break;
+
+        case BTA_AG_BINP_RES:
+        case BTA_AG_CNUM_RES:
+        case BTA_AG_CLCC_RES:
+        case BTA_AG_COPS_RES:
+            if (p_result->data.ok_flag != BTA_AG_OK_ERROR)
+            {
+                if (p_result->data.str[0] != 0)
+                {
+                   bta_ag_send_result(p_scb, code, p_result->data.str, 0);
+                }
+
+                if (p_result->data.ok_flag == BTA_AG_OK_DONE)
+                    bta_ag_send_ok(p_scb);
+            }
+            else
+            {
+                bta_ag_send_error(p_scb, p_result->data.errcode);
+            }
+            break;
+
+
+        case BTA_AG_UNAT_RES:
+            if (p_result->data.ok_flag != BTA_AG_OK_ERROR)
+            {
+                if (p_result->data.str[0] != 0)
+                {
+                    bta_ag_process_unat_res(p_result->data.str);
+                    APPL_TRACE_DEBUG("BTA_AG_RES :%s",p_result->data.str);
+                    bta_ag_send_result(p_scb, code, p_result->data.str, 0);
+                }
+
+                if (p_result->data.ok_flag == BTA_AG_OK_DONE)
+                    bta_ag_send_ok(p_scb);
+            }
+            else
+            {
+                bta_ag_send_error(p_scb, p_result->data.errcode);
+            }
+            break;
+
+        case BTA_AG_CALL_WAIT_RES:
+            if (p_scb->ccwa_enabled)
+            {
+                bta_ag_send_result(p_scb, code, p_result->data.str, 0);
+            }
+            bta_ag_send_call_inds(p_scb, p_result->result);
+            break;
+
+        case BTA_AG_IND_RES:
+            bta_ag_send_ind(p_scb, p_result->data.ind.id, p_result->data.ind.value, FALSE);
+            break;
+
+        case BTA_AG_BVRA_RES:
+            bta_ag_send_result(p_scb, code, NULL, p_result->data.state);
+            break;
+
+        case BTA_AG_BTRH_RES:
+            if (p_result->data.ok_flag != BTA_AG_OK_ERROR)
+            {
+                /* Don't respond to read if not in response & hold state */
+                if (p_result->data.num != BTA_AG_BTRH_NO_RESP)
+                {
+                    bta_ag_send_result(p_scb, code, NULL, p_result->data.num);
+                }
+
+                /* In case of a response to a read request we need to send OK */
+                if (p_result->data.ok_flag == BTA_AG_OK_DONE)
+                    bta_ag_send_ok(p_scb);
+            }
+            else
+            {
+                bta_ag_send_error(p_scb, p_result->data.errcode);
+            }
+            break;
+
+       default:
+            break;
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         bta_ag_result
+**
+** Description      Handle API result.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_ag_result(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data)
+{
+    if (p_scb->conn_service == BTA_AG_HSP)
+    {
+        bta_ag_hsp_result(p_scb, &p_data->api_result);
+    }
+    else
+    {
+        bta_ag_hfp_result(p_scb, &p_data->api_result);
+    }
+}
+
+#if (BTM_WBS_INCLUDED == TRUE )
+/*******************************************************************************
+**
+** Function         bta_ag_send_bcs
+**
+** Description      Send +BCS AT command to peer.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_ag_send_bcs(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data)
+{
+    UINT16 codec_uuid;
+
+    if (p_scb->codec_fallback)
+    {
+        codec_uuid = UUID_CODEC_CVSD;
+    }
+    else
+    {
+        switch(p_scb->sco_codec)
+        {
+            case BTA_AG_CODEC_NONE:     codec_uuid = UUID_CODEC_CVSD;   break;
+            case BTA_AG_CODEC_CVSD:     codec_uuid = UUID_CODEC_CVSD;   break;
+            case BTA_AG_CODEC_MSBC:     codec_uuid = UUID_CODEC_MSBC;   break;
+            default:
+                APPL_TRACE_ERROR("bta_ag_send_bcs: unknown codec %d, use CVSD", p_scb->sco_codec);
+                codec_uuid = UUID_CODEC_CVSD;
+                break;
+        }
+    }
+
+    /* send +BCS */
+    APPL_TRACE_DEBUG("send +BCS codec is %d", codec_uuid);
+    bta_ag_send_result(p_scb, BTA_AG_RES_BCS, NULL, codec_uuid);
+
+}
+#endif
+
+/*******************************************************************************
+**
+** Function         bta_ag_send_ring
+**
+** Description      Send RING result code to peer.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_ag_send_ring(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data)
+{
+    UNUSED(p_data);
+
+#if defined(BTA_AG_MULTI_RESULT_INCLUDED) && (BTA_AG_MULTI_RESULT_INCLUDED == TRUE)
+    tBTA_AG_MULTI_RESULT_CB m_res_cb;
+
+    if (p_scb->conn_service == BTA_AG_HFP && p_scb->clip_enabled && p_scb->clip[0] != 0)
+    {
+        memset(&m_res_cb, NULL, sizeof(tBTA_AG_MULTI_RESULT_CB));
+
+        m_res_cb.num_result = 2;
+        AT_SET_RES_CB(m_res_cb.res_cb[0], BTA_AG_RES_RING, NULL, 0)
+        AT_SET_RES_CB(m_res_cb.res_cb[1], BTA_AG_RES_CLIP, p_scb->clip, 0)
+
+        bta_ag_send_multi_result(p_scb, &m_res_cb);
+    }
+    else
+    {
+        /* send RING ONLY */
+        bta_ag_send_result(p_scb, BTA_AG_RES_RING, NULL, 0);
+    }
+#else
+    /* send RING */
+    bta_ag_send_result(p_scb, BTA_AG_RES_RING, NULL, 0);
+
+    /* if HFP and clip enabled and clip data send CLIP */
+    if (p_scb->conn_service == BTA_AG_HFP && p_scb->clip_enabled && p_scb->clip[0] != 0)
+    {
+        bta_ag_send_result(p_scb, BTA_AG_RES_CLIP, p_scb->clip, 0);
+    }
+#endif
+
+    bta_sys_start_timer(p_scb->ring_timer, BTA_AG_RING_TIMEOUT_MS,
+                        BTA_AG_RING_TIMEOUT_EVT, bta_ag_scb_to_idx(p_scb));
+}
diff --git a/rtkbt/code/bt/bta/ag/bta_ag_int.h b/rtkbt/code/bt/bta/ag/bta_ag_int.h
new file mode 100755
index 0000000..a95f0a8
--- /dev/null
+++ b/rtkbt/code/bt/bta/ag/bta_ag_int.h
@@ -0,0 +1,433 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the private interface file for the BTA audio gateway.
+ *
+ ******************************************************************************/
+#ifndef BTA_AG_INT_H
+#define BTA_AG_INT_H
+
+#include "bta_sys.h"
+#include "bta_api.h"
+#include "bta_ag_api.h"
+#include "bta_ag_at.h"
+
+/* Send RING & CLIP in one AT cmd */
+#ifndef BTA_AG_MULTI_RESULT_INCLUDED
+#define BTA_AG_MULTI_RESULT_INCLUDED      FALSE
+#endif
+
+/* Replace : in VGS and VGM for HSP */
+#ifndef BTA_HSP_RESULT_REPLACE_COLON
+#define BTA_HSP_RESULT_REPLACE_COLON      TRUE
+#endif
+
+/*****************************************************************************
+**  Constants
+*****************************************************************************/
+#define HFP_VERSION_1_1         0x0101
+#define HFP_VERSION_1_5         0x0105
+#define HFP_VERSION_1_6         0x0106
+
+#define HSP_VERSION_1_0         0x0100
+#define HSP_VERSION_1_2         0x0102
+
+/* Number of SCBs (AG service instances that can be registered) */
+#ifndef BTA_AG_NUM_SCB
+#define BTA_AG_NUM_SCB          2
+#endif
+
+/* Time to wait for retry in case of collision */
+#ifndef BTA_AG_COLLISION_TIMEOUT_MS
+#define BTA_AG_COLLISION_TIMEOUT_MS (2 * 1000)          /* 2 seconds */
+#endif
+
+/* RFCOMM MTU SIZE */
+#define BTA_AG_MTU              256
+
+/* Internal profile indexes */
+#define BTA_AG_HSP              0       /* index for HSP */
+#define BTA_AG_HFP              1       /* index for HFP */
+#define BTA_AG_NUM_IDX          2       /* number of profile indexes */
+
+/* profile role for connection */
+#define BTA_AG_ACP              0       /* accepted connection */
+#define BTA_AG_INT              1       /* initiating connection */
+
+/* feature mask that matches spec */
+#define BTA_AG_BSRF_FEAT_SPEC        (BTA_AG_FEAT_3WAY | BTA_AG_FEAT_ECNR    | \
+                                      BTA_AG_FEAT_VREC | BTA_AG_FEAT_INBAND  | \
+                                      BTA_AG_FEAT_VTAG | BTA_AG_FEAT_REJECT  | \
+                                      BTA_AG_FEAT_ECS  | BTA_AG_FEAT_ECC     | \
+                                      BTA_AG_FEAT_EXTERR | BTA_AG_FEAT_CODEC | \
+                                      BTA_AG_FEAT_VOIP)
+
+#define BTA_AG_SDP_FEAT_SPEC         (BTA_AG_FEAT_3WAY | BTA_AG_FEAT_ECNR    | \
+                                      BTA_AG_FEAT_VREC | BTA_AG_FEAT_INBAND  | \
+                                      BTA_AG_FEAT_VTAG)
+
+enum
+{
+    /* these events are handled by the state machine */
+    BTA_AG_API_REGISTER_EVT = BTA_SYS_EVT_START(BTA_ID_AG),
+    BTA_AG_API_DEREGISTER_EVT,
+    BTA_AG_API_OPEN_EVT,
+    BTA_AG_API_CLOSE_EVT,
+    BTA_AG_API_AUDIO_OPEN_EVT,
+    BTA_AG_API_AUDIO_CLOSE_EVT,
+    BTA_AG_API_RESULT_EVT,
+    BTA_AG_API_SETCODEC_EVT,
+    BTA_AG_RFC_OPEN_EVT,
+    BTA_AG_RFC_CLOSE_EVT,
+    BTA_AG_RFC_SRV_CLOSE_EVT,
+    BTA_AG_RFC_DATA_EVT,
+    BTA_AG_SCO_OPEN_EVT,
+    BTA_AG_SCO_CLOSE_EVT,
+    BTA_AG_DISC_ACP_RES_EVT,
+    BTA_AG_DISC_INT_RES_EVT,
+    BTA_AG_DISC_OK_EVT,
+    BTA_AG_DISC_FAIL_EVT,
+    BTA_AG_CI_RX_WRITE_EVT,
+    BTA_AG_RING_TIMEOUT_EVT,
+    BTA_AG_SVC_TIMEOUT_EVT,
+    BTA_AG_CI_SCO_DATA_EVT,
+    BTA_AG_CI_SLC_READY_EVT,
+    BTA_AG_MAX_EVT,
+
+    /* these events are handled outside of the state machine */
+    BTA_AG_API_ENABLE_EVT,
+    BTA_AG_API_DISABLE_EVT
+};
+
+/* Actions to perform after a SCO event */
+enum
+{
+    BTA_AG_POST_SCO_NONE,       /* no action */
+    BTA_AG_POST_SCO_CLOSE_RFC,  /* close RFCOMM channel after SCO closes */
+    BTA_AG_POST_SCO_RING,       /* send RING result code after SCO opens */
+    BTA_AG_POST_SCO_CALL_CONN,  /* send call indicators after SCO opens/closes */
+    BTA_AG_POST_SCO_CALL_ORIG,  /* send call indicators after SCO closes */
+    BTA_AG_POST_SCO_CALL_END,   /* send call indicators after SCO closes */
+    BTA_AG_POST_SCO_CALL_END_INCALL   /* send call indicators for end call & incoming call after SCO closes */
+};
+
+/* sco states */
+enum
+{
+    BTA_AG_SCO_SHUTDOWN_ST,     /* no sco listening, all sco connections closed */
+    BTA_AG_SCO_LISTEN_ST,       /* sco listening */
+#if (BTM_WBS_INCLUDED == TRUE )
+    BTA_AG_SCO_CODEC_ST,        /* sco codec negotiation */
+#endif
+    BTA_AG_SCO_OPENING_ST,      /* sco connection opening */
+    BTA_AG_SCO_OPEN_CL_ST,      /* opening sco connection being closed */
+    BTA_AG_SCO_OPEN_XFER_ST,    /* opening sco connection being transferred */
+    BTA_AG_SCO_OPEN_ST,         /* sco open */
+    BTA_AG_SCO_CLOSING_ST,      /* sco closing */
+    BTA_AG_SCO_CLOSE_OP_ST,     /* closing sco being opened */
+    BTA_AG_SCO_CLOSE_XFER_ST,   /* closing sco being transferred */
+    BTA_AG_SCO_SHUTTING_ST      /* sco shutting down */
+};
+
+/*****************************************************************************
+**  Data types
+*****************************************************************************/
+
+/* data type for BTA_AG_API_ENABLE_EVT */
+typedef struct
+{
+    BT_HDR              hdr;
+    tBTA_AG_PARSE_MODE  parse_mode;
+    tBTA_AG_CBACK      *p_cback;
+} tBTA_AG_API_ENABLE;
+
+/* data type for BTA_AG_API_REGISTER_EVT */
+typedef struct
+{
+    BT_HDR              hdr;
+    char                p_name[2][BTA_SERVICE_NAME_LEN+1];
+    tBTA_SERVICE_MASK   services;
+    tBTA_SEC            sec_mask;
+    tBTA_AG_FEAT        features;
+    UINT8               app_id;
+} tBTA_AG_API_REGISTER;
+
+/* data type for BTA_AG_API_OPEN_EVT */
+typedef struct
+{
+    BT_HDR              hdr;
+    BD_ADDR             bd_addr;
+    tBTA_SERVICE_MASK   services;
+    tBTA_SEC            sec_mask;
+} tBTA_AG_API_OPEN;
+
+/* data type for BTA_AG_API_RESULT_EVT */
+typedef struct
+{
+    BT_HDR            hdr;
+    tBTA_AG_RES       result;
+    tBTA_AG_RES_DATA  data;
+} tBTA_AG_API_RESULT;
+
+/* data type for BTA_AG_API_SETCODEC_EVT */
+typedef struct
+{
+    BT_HDR              hdr;
+    tBTA_AG_PEER_CODEC  codec;
+} tBTA_AG_API_SETCODEC;
+
+/* data type for BTA_AG_DISC_RESULT_EVT */
+typedef struct
+{
+    BT_HDR          hdr;
+    UINT16          status;
+} tBTA_AG_DISC_RESULT;
+
+/* data type for RFCOMM events */
+typedef struct
+{
+    BT_HDR          hdr;
+    UINT16          port_handle;
+} tBTA_AG_RFC;
+
+/* data type for BTA_AG_CI_RX_WRITE_EVT */
+typedef struct
+{
+    BT_HDR          hdr;
+//    char            p_data[BTA_AG_MTU+1];
+} tBTA_AG_CI_RX_WRITE;
+
+/* union of all event datatypes */
+typedef union
+{
+    BT_HDR                  hdr;
+    tBTA_AG_API_ENABLE      api_enable;
+    tBTA_AG_API_REGISTER    api_register;
+    tBTA_AG_API_OPEN        api_open;
+    tBTA_AG_API_RESULT      api_result;
+#if (BTM_WBS_INCLUDED == TRUE )
+    tBTA_AG_API_SETCODEC    api_setcodec;
+#endif
+    tBTA_AG_DISC_RESULT     disc_result;
+    tBTA_AG_RFC             rfc;
+    tBTA_AG_CI_RX_WRITE     ci_rx_write;
+} tBTA_AG_DATA;
+
+/* type for each profile */
+typedef struct
+{
+    UINT32          sdp_handle;
+    UINT8           scn;
+} tBTA_AG_PROFILE;
+
+#if (BTM_WBS_INCLUDED == TRUE)
+typedef enum
+{
+    BTA_AG_SCO_MSBC_SETTINGS_T2 = 0, /* preferred/default when codec is mSBC */
+    BTA_AG_SCO_MSBC_SETTINGS_T1,
+} tBTA_AG_SCO_MSBC_SETTINGS;
+#endif
+
+/* type for each service control block */
+typedef struct
+{
+    char                clip[BTA_AG_AT_MAX_LEN+1]; /* number string used for CLIP */
+    UINT16              serv_handle[BTA_AG_NUM_IDX]; /* RFCOMM server handles */
+    tBTA_AG_AT_CB       at_cb;          /* AT command interpreter */
+    BD_ADDR             peer_addr;      /* peer bd address */
+    tSDP_DISCOVERY_DB   *p_disc_db;     /* pointer to discovery database */
+    tBTA_SERVICE_MASK   reg_services;   /* services specified in register API */
+    tBTA_SERVICE_MASK   open_services;  /* services specified in open API */
+    UINT16              conn_handle;    /* RFCOMM handle of connected service */
+    tBTA_SEC            serv_sec_mask;  /* server security mask */
+    tBTA_SEC            cli_sec_mask;   /* client security mask */
+    tBTA_AG_FEAT        features;       /* features registered by application */
+    tBTA_AG_PEER_FEAT   peer_features;  /* peer device features */
+    UINT16              peer_version;   /* profile version of peer device */
+    UINT16              hsp_version;    /* HSP profile version */
+    UINT16              sco_idx;        /* SCO handle */
+    BOOLEAN             in_use;         /* scb in use */
+    BOOLEAN             dealloc;        /* TRUE if service shutting down */
+    BOOLEAN             clip_enabled;   /* set to TRUE if HF enables CLIP reporting */
+    BOOLEAN             ccwa_enabled;   /* set to TRUE if HF enables CCWA reporting */
+    BOOLEAN             cmer_enabled;   /* set to TRUE if HF enables CMER reporting */
+    BOOLEAN             cmee_enabled;   /* set to TRUE if HF enables CME ERROR reporting */
+    BOOLEAN             inband_enabled; /* set to TRUE if inband ring enabled */
+    BOOLEAN             svc_conn;       /* set to TRUE when service level connection up */
+    UINT8               state;          /* state machine state */
+    UINT8               conn_service;   /* connected service */
+    UINT8               peer_scn;       /* peer scn */
+    UINT8               app_id;         /* application id */
+    UINT8               role;           /* initiator/acceptor role */
+    UINT8               post_sco;       /* action to perform after sco event */
+    UINT8               call_ind;       /* CIEV call indicator value */
+    UINT8               callsetup_ind;  /* CIEV callsetup indicator value */
+    UINT8               service_ind;    /* CIEV service indicator value */
+    UINT8               signal_ind;     /* CIEV signal indicator value */
+    UINT8               roam_ind;       /* CIEV roam indicator value */
+    UINT8               battchg_ind;    /* CIEV battery charge indicator value */
+    UINT8               callheld_ind;   /* CIEV call held indicator value */
+    BOOLEAN             retry_with_sco_only; /* indicator to try with SCO only when eSCO fails */
+    UINT32              bia_masked_out; /* indicators HF does not want us to send */
+    alarm_t             *collision_timer;
+    alarm_t             *ring_timer;
+#if (BTM_WBS_INCLUDED == TRUE)
+    alarm_t             *codec_negotiation_timer;
+    tBTA_AG_PEER_CODEC  peer_codecs;    /* codecs for eSCO supported by the peer */
+    tBTA_AG_PEER_CODEC  sco_codec;      /* codec to be used for eSCO connection */
+    tBTA_AG_PEER_CODEC  inuse_codec;    /* codec being used for the current SCO connection */
+    BOOLEAN             codec_updated;  /* set to TRUE whenever the app updates codec type */
+    BOOLEAN             codec_fallback; /* If sco nego fails for mSBC, fallback to CVSD */
+    tBTA_AG_SCO_MSBC_SETTINGS codec_msbc_settings; /* settings to be used for the impending eSCO */
+#endif
+
+} tBTA_AG_SCB;
+
+/* type for sco data */
+typedef struct
+{
+    tBTM_ESCO_CONN_REQ_EVT_DATA  conn_data;     /* SCO data for pending conn request */
+    tBTA_AG_SCB                 *p_curr_scb;    /* SCB associated with SCO connection */
+    tBTA_AG_SCB                 *p_xfer_scb;    /* SCB associated with SCO transfer */
+    UINT16                      cur_idx;        /* SCO handle */
+    UINT8                       state;          /* SCO state variable */
+    BOOLEAN                     param_updated;  /* if params were updated to non-default */
+    tBTM_ESCO_PARAMS            params;         /* ESCO parameters */
+} tBTA_AG_SCO_CB;
+
+
+/* type for AG control block */
+typedef struct
+{
+    tBTA_AG_SCB         scb[BTA_AG_NUM_SCB];        /* service control blocks */
+    tBTA_AG_PROFILE     profile[BTA_AG_NUM_IDX];    /* profile-specific data */
+    tBTA_AG_SCO_CB      sco;                        /* SCO data */
+    tBTA_AG_CBACK       *p_cback;                   /* application callback */
+    tBTA_AG_PARSE_MODE  parse_mode;                 /* parse/pass-through mode */
+} tBTA_AG_CB;
+
+/*****************************************************************************
+**  Global data
+*****************************************************************************/
+
+/* constant lookup tables */
+extern const UINT16 bta_ag_uuid[BTA_AG_NUM_IDX];
+extern const UINT8 bta_ag_sec_id[BTA_AG_NUM_IDX];
+extern const tBTA_AG_AT_CMD *bta_ag_at_tbl[BTA_AG_NUM_IDX];
+
+/* control block declaration */
+#if BTA_DYNAMIC_MEMORY == FALSE
+extern tBTA_AG_CB bta_ag_cb;
+#else
+extern tBTA_AG_CB *bta_ag_cb_ptr;
+#define bta_ag_cb (*bta_ag_cb_ptr)
+#endif
+
+/* config struct */
+extern tBTA_AG_CFG *p_bta_ag_cfg;
+
+/*****************************************************************************
+**  Function prototypes
+*****************************************************************************/
+
+/* main functions */
+extern void bta_ag_scb_dealloc(tBTA_AG_SCB *p_scb);
+extern UINT16 bta_ag_scb_to_idx(tBTA_AG_SCB *p_scb);
+extern tBTA_AG_SCB *bta_ag_scb_by_idx(UINT16 idx);
+extern UINT8 bta_ag_service_to_idx(tBTA_SERVICE_MASK services);
+extern UINT16 bta_ag_idx_by_bdaddr(BD_ADDR peer_addr);
+extern BOOLEAN bta_ag_other_scb_open(tBTA_AG_SCB *p_curr_scb);
+extern BOOLEAN bta_ag_scb_open(tBTA_AG_SCB *p_curr_scb);
+extern tBTA_AG_SCB *bta_ag_get_other_idle_scb (tBTA_AG_SCB *p_curr_scb);
+extern void bta_ag_sm_execute(tBTA_AG_SCB *p_scb, UINT16 event, tBTA_AG_DATA *p_data);
+extern BOOLEAN bta_ag_hdl_event(BT_HDR *p_msg);
+extern void bta_ag_collision_cback (tBTA_SYS_CONN_STATUS status, UINT8 id,
+                                    UINT8 app_id, BD_ADDR peer_addr);
+extern void bta_ag_resume_open (tBTA_AG_SCB *p_scb);
+
+/* SDP functions */
+extern BOOLEAN bta_ag_add_record(UINT16 service_uuid, char *p_service_name, UINT8 scn,
+                                 tBTA_AG_FEAT features, UINT32 sdp_handle);
+extern void bta_ag_create_records(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
+extern void bta_ag_del_records(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
+extern BOOLEAN bta_ag_sdp_find_attr(tBTA_AG_SCB *p_scb, tBTA_SERVICE_MASK service);
+extern void bta_ag_do_disc(tBTA_AG_SCB *p_scb, tBTA_SERVICE_MASK service);
+extern void bta_ag_free_db(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
+
+/* RFCOMM functions */
+extern void bta_ag_start_servers(tBTA_AG_SCB *p_scb, tBTA_SERVICE_MASK services);
+extern void bta_ag_close_servers(tBTA_AG_SCB *p_scb, tBTA_SERVICE_MASK services);
+extern BOOLEAN bta_ag_is_server_closed (tBTA_AG_SCB *p_scb);
+extern void bta_ag_rfc_do_close(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
+extern void bta_ag_rfc_do_open(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
+
+/* SCO functions */
+extern BOOLEAN bta_ag_sco_is_open(tBTA_AG_SCB *p_scb);
+extern BOOLEAN bta_ag_sco_is_opening(tBTA_AG_SCB *p_scb);
+extern void bta_ag_sco_conn_rsp(tBTA_AG_SCB *p_scb, tBTM_ESCO_CONN_REQ_EVT_DATA *p_data);
+
+/* AT command functions */
+extern void bta_ag_at_hsp_cback(tBTA_AG_SCB *p_scb, UINT16 cmd, UINT8 arg_type,
+                                char *p_arg, INT16 int_arg);
+extern void bta_ag_at_hfp_cback(tBTA_AG_SCB *p_scb, UINT16 cmd, UINT8 arg_type,
+                                char *p_arg, INT16 int_arg);
+extern void bta_ag_at_err_cback(tBTA_AG_SCB *p_scb, BOOLEAN unknown, char *p_arg);
+extern BOOLEAN bta_ag_inband_enabled(tBTA_AG_SCB *p_scb);
+extern void bta_ag_send_call_inds(tBTA_AG_SCB *p_scb, tBTA_AG_RES result);
+
+/* Action functions */
+extern void bta_ag_register(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
+extern void bta_ag_deregister(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
+extern void bta_ag_start_dereg(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
+extern void bta_ag_start_close(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
+extern void bta_ag_start_open(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
+extern void bta_ag_disc_int_res(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
+extern void bta_ag_disc_acp_res(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
+extern void bta_ag_disc_fail(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
+extern void bta_ag_open_fail(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
+extern void bta_ag_rfc_fail(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
+extern void bta_ag_rfc_close(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
+extern void bta_ag_rfc_open(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
+extern void bta_ag_rfc_acp_open(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
+extern void bta_ag_rfc_data(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
+extern void bta_ag_sco_listen(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
+extern void bta_ag_sco_open(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
+extern void bta_ag_sco_close(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
+#if (BTM_WBS_INCLUDED == TRUE )
+extern void bta_ag_sco_codec_nego(tBTA_AG_SCB *p_scb, BOOLEAN result);
+extern void bta_ag_codec_negotiate (tBTA_AG_SCB *p_scb);
+#endif
+extern void bta_ag_sco_shutdown(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
+extern void bta_ag_sco_conn_open(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
+extern void bta_ag_sco_conn_close(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
+extern void bta_ag_post_sco_open(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
+extern void bta_ag_post_sco_close(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
+extern void bta_ag_svc_conn_open(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
+extern void bta_ag_result(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
+extern void bta_ag_setcodec(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
+#if (BTM_WBS_INCLUDED == TRUE )
+extern void bta_ag_send_bcs(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
+#endif
+extern void bta_ag_send_ring(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
+extern void bta_ag_ci_sco_data(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
+extern void bta_ag_set_esco_param(BOOLEAN set_reset, tBTM_ESCO_PARAMS *param);
+extern void bta_ag_ci_rx_data(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
+extern void bta_ag_rcvd_slc_ready(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
+#endif /* BTA_AG_INT_H */
diff --git a/rtkbt/code/bt/bta/ag/bta_ag_main.c b/rtkbt/code/bt/bta/ag/bta_ag_main.c
new file mode 100755
index 0000000..3abd1ef
--- /dev/null
+++ b/rtkbt/code/bt/bta/ag/bta_ag_main.c
@@ -0,0 +1,1021 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the main implementation file for the BTA audio gateway.
+ *
+ ******************************************************************************/
+
+#include <string.h>
+#include "bta_api.h"
+#include "bta_sys.h"
+#include "bta_ag_co.h"
+#include "bta_ag_int.h"
+#include "utl.h"
+
+/*****************************************************************************
+** Constants and types
+*****************************************************************************/
+#ifndef BTA_AG_DEBUG
+#define BTA_AG_DEBUG FALSE
+#endif
+
+extern fixed_queue_t *btu_bta_alarm_queue;
+
+#if BTA_AG_DEBUG == TRUE
+static char *bta_ag_evt_str(UINT16 event, tBTA_AG_RES result);
+static char *bta_ag_state_str(UINT8 state);
+#endif
+
+/* state machine states */
+enum
+{
+    BTA_AG_INIT_ST,
+    BTA_AG_OPENING_ST,
+    BTA_AG_OPEN_ST,
+    BTA_AG_CLOSING_ST
+};
+
+/* state machine action enumeration list */
+enum
+{
+    BTA_AG_REGISTER,
+    BTA_AG_DEREGISTER,
+    BTA_AG_START_OPEN,
+    BTA_AG_RFC_DO_OPEN,
+    BTA_AG_RFC_DO_CLOSE,
+    BTA_AG_START_DEREG,
+    BTA_AG_START_CLOSE,
+    BTA_AG_RFC_OPEN,
+    BTA_AG_OPEN_FAIL,
+    BTA_AG_RFC_ACP_OPEN,
+    BTA_AG_RFC_CLOSE,
+    BTA_AG_RFC_FAIL,
+    BTA_AG_RFC_DATA,
+    BTA_AG_DISC_INT_RES,
+    BTA_AG_DISC_FAIL,
+    BTA_AG_DISC_ACP_RES,
+    BTA_AG_FREE_DB,
+    BTA_AG_SCO_CONN_OPEN,
+    BTA_AG_SCO_CONN_CLOSE,
+    BTA_AG_SCO_LISTEN,
+    BTA_AG_SCO_OPEN,
+    BTA_AG_SCO_CLOSE,
+    BTA_AG_SCO_SHUTDOWN,
+    BTA_AG_POST_SCO_OPEN,
+    BTA_AG_POST_SCO_CLOSE,
+    BTA_AG_SVC_CONN_OPEN,
+    BTA_AG_RESULT,
+    BTA_AG_SETCODEC,
+    BTA_AG_SEND_RING,
+    BTA_AG_CI_SCO_DATA,
+    BTA_AG_CI_RX_DATA,
+    BTA_AG_RCVD_SLC_READY,
+    BTA_AG_NUM_ACTIONS
+};
+
+#define BTA_AG_IGNORE       BTA_AG_NUM_ACTIONS
+
+/* type for action functions */
+typedef void (*tBTA_AG_ACTION)(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
+
+/* action functions */
+const tBTA_AG_ACTION bta_ag_action[] =
+{
+    bta_ag_register,
+    bta_ag_deregister,
+    bta_ag_start_open,
+    bta_ag_rfc_do_open,
+    bta_ag_rfc_do_close,
+    bta_ag_start_dereg,
+    bta_ag_start_close,
+    bta_ag_rfc_open,
+    bta_ag_open_fail,
+    bta_ag_rfc_acp_open,
+    bta_ag_rfc_close,
+    bta_ag_rfc_fail,
+    bta_ag_rfc_data,
+    bta_ag_disc_int_res,
+    bta_ag_disc_fail,
+    bta_ag_disc_acp_res,
+    bta_ag_free_db,
+    bta_ag_sco_conn_open,
+    bta_ag_sco_conn_close,
+    bta_ag_sco_listen,
+    bta_ag_sco_open,
+    bta_ag_sco_close,
+    bta_ag_sco_shutdown,
+    bta_ag_post_sco_open,
+    bta_ag_post_sco_close,
+    bta_ag_svc_conn_open,
+    bta_ag_result,
+    bta_ag_setcodec,
+    bta_ag_send_ring,
+    bta_ag_ci_sco_data,
+    bta_ag_ci_rx_data,
+    bta_ag_rcvd_slc_ready
+};
+
+/* state table information */
+#define BTA_AG_ACTIONS              2       /* number of actions */
+#define BTA_AG_NEXT_STATE           2       /* position of next state */
+#define BTA_AG_NUM_COLS             3       /* number of columns in state tables */
+
+/* state table for init state */
+const UINT8 bta_ag_st_init[][BTA_AG_NUM_COLS] =
+{
+/* Event                    Action 1                Action 2                Next state */
+/* API_REGISTER_EVT */      {BTA_AG_REGISTER,       BTA_AG_IGNORE,          BTA_AG_INIT_ST},
+/* API_DEREGISTER_EVT */    {BTA_AG_DEREGISTER,     BTA_AG_IGNORE,          BTA_AG_INIT_ST},
+/* API_OPEN_EVT */          {BTA_AG_START_OPEN,     BTA_AG_IGNORE,          BTA_AG_OPENING_ST},
+/* API_CLOSE_EVT */         {BTA_AG_IGNORE,         BTA_AG_IGNORE,          BTA_AG_INIT_ST},
+/* API_AUDIO_OPEN_EVT */    {BTA_AG_IGNORE,         BTA_AG_IGNORE,          BTA_AG_INIT_ST},
+/* API_AUDIO_CLOSE_EVT */   {BTA_AG_IGNORE,         BTA_AG_IGNORE,          BTA_AG_INIT_ST},
+/* API_RESULT_EVT */        {BTA_AG_IGNORE,         BTA_AG_IGNORE,          BTA_AG_INIT_ST},
+/* API_SETCODEC_EVT */      {BTA_AG_IGNORE,         BTA_AG_IGNORE,          BTA_AG_INIT_ST},
+/* RFC_OPEN_EVT */          {BTA_AG_RFC_ACP_OPEN,   BTA_AG_SCO_LISTEN,      BTA_AG_OPEN_ST},
+/* RFC_CLOSE_EVT */         {BTA_AG_IGNORE,         BTA_AG_IGNORE,          BTA_AG_INIT_ST},
+/* RFC_SRV_CLOSE_EVT */     {BTA_AG_IGNORE,         BTA_AG_IGNORE,          BTA_AG_INIT_ST},
+/* RFC_DATA_EVT */          {BTA_AG_IGNORE,         BTA_AG_IGNORE,          BTA_AG_INIT_ST},
+/* SCO_OPEN_EVT */          {BTA_AG_SCO_CONN_OPEN,  BTA_AG_IGNORE,          BTA_AG_INIT_ST},
+/* SCO_CLOSE_EVT */         {BTA_AG_SCO_CONN_CLOSE, BTA_AG_IGNORE,          BTA_AG_INIT_ST},
+/* DISC_ACP_RES_EVT */      {BTA_AG_FREE_DB,        BTA_AG_IGNORE,          BTA_AG_INIT_ST},
+/* DISC_INT_RES_EVT */      {BTA_AG_IGNORE,         BTA_AG_IGNORE,          BTA_AG_INIT_ST},
+/* DISC_OK_EVT */           {BTA_AG_IGNORE,         BTA_AG_IGNORE,          BTA_AG_INIT_ST},
+/* DISC_FAIL_EVT */         {BTA_AG_IGNORE,         BTA_AG_IGNORE,          BTA_AG_INIT_ST},
+/* CI_RX_WRITE_EVT */       {BTA_AG_IGNORE,         BTA_AG_IGNORE,          BTA_AG_INIT_ST},
+/* RING_TOUT_EVT */         {BTA_AG_IGNORE,         BTA_AG_IGNORE,          BTA_AG_INIT_ST},
+/* SVC_TOUT_EVT */          {BTA_AG_IGNORE,         BTA_AG_IGNORE,          BTA_AG_INIT_ST},
+/* CI_SCO_DATA_EVT */       {BTA_AG_IGNORE,         BTA_AG_IGNORE,          BTA_AG_INIT_ST},
+/* CI_SLC_READY_EVT */      {BTA_AG_IGNORE,         BTA_AG_IGNORE,          BTA_AG_INIT_ST}
+};
+
+/* state table for opening state */
+const UINT8 bta_ag_st_opening[][BTA_AG_NUM_COLS] =
+{
+/* Event                    Action 1                Action 2                Next state */
+/* API_REGISTER_EVT */      {BTA_AG_IGNORE,         BTA_AG_IGNORE,          BTA_AG_OPENING_ST},
+/* API_DEREGISTER_EVT */    {BTA_AG_RFC_DO_CLOSE,   BTA_AG_START_DEREG,     BTA_AG_CLOSING_ST},
+/* API_OPEN_EVT */          {BTA_AG_OPEN_FAIL,      BTA_AG_IGNORE,          BTA_AG_OPENING_ST},
+/* API_CLOSE_EVT */         {BTA_AG_RFC_DO_CLOSE,   BTA_AG_IGNORE,          BTA_AG_CLOSING_ST},
+/* API_AUDIO_OPEN_EVT */    {BTA_AG_IGNORE,         BTA_AG_IGNORE,          BTA_AG_OPENING_ST},
+/* API_AUDIO_CLOSE_EVT */   {BTA_AG_IGNORE,         BTA_AG_IGNORE,          BTA_AG_OPENING_ST},
+/* API_RESULT_EVT */        {BTA_AG_IGNORE,         BTA_AG_IGNORE,          BTA_AG_OPENING_ST},
+/* API_SETCODEC_EVT */      {BTA_AG_IGNORE,         BTA_AG_IGNORE,          BTA_AG_OPENING_ST},
+/* RFC_OPEN_EVT */          {BTA_AG_RFC_OPEN,       BTA_AG_SCO_LISTEN,      BTA_AG_OPEN_ST},
+/* RFC_CLOSE_EVT */         {BTA_AG_RFC_FAIL,       BTA_AG_IGNORE,          BTA_AG_INIT_ST},
+/* RFC_SRV_CLOSE_EVT */     {BTA_AG_IGNORE,         BTA_AG_IGNORE,          BTA_AG_OPENING_ST},
+/* RFC_DATA_EVT */          {BTA_AG_IGNORE,         BTA_AG_IGNORE,          BTA_AG_OPENING_ST},
+/* SCO_OPEN_EVT */          {BTA_AG_SCO_CONN_OPEN,  BTA_AG_IGNORE,          BTA_AG_OPENING_ST},
+/* SCO_CLOSE_EVT */         {BTA_AG_SCO_CONN_CLOSE, BTA_AG_IGNORE,          BTA_AG_OPENING_ST},
+/* DISC_ACP_RES_EVT */      {BTA_AG_IGNORE,         BTA_AG_IGNORE,          BTA_AG_OPENING_ST},
+/* DISC_INT_RES_EVT */      {BTA_AG_DISC_INT_RES,   BTA_AG_IGNORE,          BTA_AG_OPENING_ST},
+/* DISC_OK_EVT */           {BTA_AG_RFC_DO_OPEN,    BTA_AG_IGNORE,          BTA_AG_OPENING_ST},
+/* DISC_FAIL_EVT */         {BTA_AG_DISC_FAIL,      BTA_AG_IGNORE,          BTA_AG_INIT_ST},
+/* CI_RX_WRITE_EVT */       {BTA_AG_IGNORE,         BTA_AG_IGNORE,          BTA_AG_OPENING_ST},
+/* RING_TOUT_EVT */         {BTA_AG_IGNORE,         BTA_AG_IGNORE,          BTA_AG_OPENING_ST},
+/* SVC_TOUT_EVT */          {BTA_AG_IGNORE,         BTA_AG_IGNORE,          BTA_AG_OPENING_ST},
+/* CI_SCO_DATA_EVT */       {BTA_AG_IGNORE,         BTA_AG_IGNORE,          BTA_AG_OPENING_ST},
+/* CI_SLC_READY_EVT */      {BTA_AG_IGNORE,         BTA_AG_IGNORE,          BTA_AG_OPENING_ST}
+};
+
+/* state table for open state */
+const UINT8 bta_ag_st_open[][BTA_AG_NUM_COLS] =
+{
+/* Event                    Action 1                Action 2                Next state */
+/* API_REGISTER_EVT */      {BTA_AG_IGNORE,         BTA_AG_IGNORE,          BTA_AG_OPEN_ST},
+/* API_DEREGISTER_EVT */    {BTA_AG_START_CLOSE,    BTA_AG_START_DEREG,     BTA_AG_CLOSING_ST},
+/* API_OPEN_EVT */          {BTA_AG_OPEN_FAIL,      BTA_AG_IGNORE,          BTA_AG_OPEN_ST},
+/* API_CLOSE_EVT */         {BTA_AG_START_CLOSE,    BTA_AG_IGNORE,          BTA_AG_CLOSING_ST},
+/* API_AUDIO_OPEN_EVT */    {BTA_AG_SCO_OPEN,       BTA_AG_IGNORE,          BTA_AG_OPEN_ST},
+/* API_AUDIO_CLOSE_EVT */   {BTA_AG_SCO_CLOSE,      BTA_AG_IGNORE,          BTA_AG_OPEN_ST},
+/* API_RESULT_EVT */        {BTA_AG_RESULT,         BTA_AG_IGNORE,          BTA_AG_OPEN_ST},
+/* API_SETCODEC_EVT */      {BTA_AG_SETCODEC,       BTA_AG_IGNORE,          BTA_AG_OPEN_ST},
+/* RFC_OPEN_EVT */          {BTA_AG_IGNORE,         BTA_AG_IGNORE,          BTA_AG_OPEN_ST},
+/* RFC_CLOSE_EVT */         {BTA_AG_RFC_CLOSE,      BTA_AG_IGNORE,          BTA_AG_INIT_ST},
+/* RFC_SRV_CLOSE_EVT */     {BTA_AG_IGNORE,         BTA_AG_IGNORE,          BTA_AG_OPEN_ST},
+/* RFC_DATA_EVT */          {BTA_AG_RFC_DATA,       BTA_AG_IGNORE,          BTA_AG_OPEN_ST},
+/* SCO_OPEN_EVT */          {BTA_AG_SCO_CONN_OPEN,  BTA_AG_POST_SCO_OPEN,   BTA_AG_OPEN_ST},
+/* SCO_CLOSE_EVT */         {BTA_AG_SCO_CONN_CLOSE, BTA_AG_POST_SCO_CLOSE,  BTA_AG_OPEN_ST},
+/* DISC_ACP_RES_EVT */      {BTA_AG_DISC_ACP_RES,   BTA_AG_IGNORE,          BTA_AG_OPEN_ST},
+/* DISC_INT_RES_EVT */      {BTA_AG_IGNORE,         BTA_AG_IGNORE,          BTA_AG_OPEN_ST},
+/* DISC_OK_EVT */           {BTA_AG_IGNORE,         BTA_AG_IGNORE,          BTA_AG_OPEN_ST},
+/* DISC_FAIL_EVT */         {BTA_AG_IGNORE,         BTA_AG_IGNORE,          BTA_AG_OPEN_ST},
+/* CI_RX_WRITE_EVT */       {BTA_AG_CI_RX_DATA,     BTA_AG_IGNORE,          BTA_AG_OPEN_ST},
+/* RING_TOUT_EVT */         {BTA_AG_SEND_RING,      BTA_AG_IGNORE,          BTA_AG_OPEN_ST},
+/* SVC_TOUT_EVT */          {BTA_AG_START_CLOSE,    BTA_AG_IGNORE,          BTA_AG_CLOSING_ST},
+/* CI_SCO_DATA_EVT */       {BTA_AG_CI_SCO_DATA,    BTA_AG_IGNORE,          BTA_AG_OPEN_ST},
+/* CI_SLC_READY_EVT */      {BTA_AG_RCVD_SLC_READY, BTA_AG_IGNORE,          BTA_AG_OPEN_ST}
+};
+
+/* state table for closing state */
+const UINT8 bta_ag_st_closing[][BTA_AG_NUM_COLS] =
+{
+/* Event                    Action 1                Action 2                Next state */
+/* API_REGISTER_EVT */      {BTA_AG_IGNORE,         BTA_AG_IGNORE,          BTA_AG_CLOSING_ST},
+/* API_DEREGISTER_EVT */    {BTA_AG_START_DEREG,    BTA_AG_IGNORE,          BTA_AG_CLOSING_ST},
+/* API_OPEN_EVT */          {BTA_AG_OPEN_FAIL,      BTA_AG_IGNORE,          BTA_AG_CLOSING_ST},
+/* API_CLOSE_EVT */         {BTA_AG_IGNORE,         BTA_AG_IGNORE,          BTA_AG_CLOSING_ST},
+/* API_AUDIO_OPEN_EVT */    {BTA_AG_IGNORE,         BTA_AG_IGNORE,          BTA_AG_CLOSING_ST},
+/* API_AUDIO_CLOSE_EVT */   {BTA_AG_IGNORE,         BTA_AG_IGNORE,          BTA_AG_CLOSING_ST},
+/* API_RESULT_EVT */        {BTA_AG_IGNORE,         BTA_AG_IGNORE,          BTA_AG_CLOSING_ST},
+/* API_SETCODEC_EVT */      {BTA_AG_IGNORE,         BTA_AG_IGNORE,          BTA_AG_CLOSING_ST},
+/* RFC_OPEN_EVT */          {BTA_AG_IGNORE,         BTA_AG_IGNORE,          BTA_AG_CLOSING_ST},
+/* RFC_CLOSE_EVT */         {BTA_AG_RFC_CLOSE,      BTA_AG_IGNORE,          BTA_AG_INIT_ST},
+/* RFC_SRV_CLOSE_EVT */     {BTA_AG_IGNORE,         BTA_AG_IGNORE,          BTA_AG_CLOSING_ST},
+/* RFC_DATA_EVT */          {BTA_AG_IGNORE,         BTA_AG_IGNORE,          BTA_AG_CLOSING_ST},
+/* SCO_OPEN_EVT */          {BTA_AG_SCO_CONN_OPEN,  BTA_AG_IGNORE,          BTA_AG_CLOSING_ST},
+/* SCO_CLOSE_EVT */         {BTA_AG_SCO_CONN_CLOSE, BTA_AG_POST_SCO_CLOSE,  BTA_AG_CLOSING_ST},
+/* DISC_ACP_RES_EVT */      {BTA_AG_FREE_DB,        BTA_AG_IGNORE,          BTA_AG_CLOSING_ST},
+/* DISC_INT_RES_EVT */      {BTA_AG_FREE_DB,        BTA_AG_IGNORE,          BTA_AG_INIT_ST},
+/* DISC_OK_EVT */           {BTA_AG_IGNORE,         BTA_AG_IGNORE,          BTA_AG_CLOSING_ST},
+/* DISC_FAIL_EVT */         {BTA_AG_IGNORE,         BTA_AG_IGNORE,          BTA_AG_CLOSING_ST},
+/* CI_RX_WRITE_EVT */       {BTA_AG_IGNORE,         BTA_AG_IGNORE,          BTA_AG_CLOSING_ST},
+/* RING_TOUT_EVT */         {BTA_AG_IGNORE,         BTA_AG_IGNORE,          BTA_AG_CLOSING_ST},
+/* SVC_TOUT_EVT */          {BTA_AG_IGNORE,         BTA_AG_IGNORE,          BTA_AG_CLOSING_ST},
+/* CI_SCO_DATA_EVT */       {BTA_AG_IGNORE,         BTA_AG_IGNORE,          BTA_AG_CLOSING_ST},
+/* CI_SLC_READY_EVT */      {BTA_AG_IGNORE,         BTA_AG_IGNORE,          BTA_AG_CLOSING_ST}
+};
+
+/* type for state table */
+typedef const UINT8 (*tBTA_AG_ST_TBL)[BTA_AG_NUM_COLS];
+
+/* state table */
+const tBTA_AG_ST_TBL bta_ag_st_tbl[] =
+{
+    bta_ag_st_init,
+    bta_ag_st_opening,
+    bta_ag_st_open,
+    bta_ag_st_closing
+};
+
+/*****************************************************************************
+** Global data
+*****************************************************************************/
+
+/* AG control block */
+#if BTA_DYNAMIC_MEMORY == FALSE
+tBTA_AG_CB  bta_ag_cb;
+#endif
+
+/*******************************************************************************
+**
+** Function         bta_ag_scb_alloc
+**
+** Description      Allocate an AG service control block.
+**
+**
+** Returns          pointer to the scb, or NULL if none could be allocated.
+**
+*******************************************************************************/
+static tBTA_AG_SCB *bta_ag_scb_alloc(void)
+{
+    tBTA_AG_SCB     *p_scb = &bta_ag_cb.scb[0];
+    int             i;
+
+    for (i = 0; i < BTA_AG_NUM_SCB; i++, p_scb++)
+    {
+        if (!p_scb->in_use)
+        {
+            /* initialize variables */
+            p_scb->in_use = TRUE;
+            p_scb->sco_idx = BTM_INVALID_SCO_INDEX;
+#if (BTM_WBS_INCLUDED == TRUE )
+            p_scb->codec_updated = FALSE;
+            p_scb->peer_codecs = BTA_AG_CODEC_CVSD;
+            p_scb->sco_codec = BTA_AG_CODEC_CVSD;
+#endif
+            /* set up timers */
+            p_scb->ring_timer = alarm_new("bta_ag.scb_ring_timer");
+            p_scb->collision_timer = alarm_new("bta_ag.scb_collision_timer");
+#if (BTM_WBS_INCLUDED == TRUE)
+            p_scb->codec_negotiation_timer =
+                alarm_new("bta_ag.scb_codec_negotiation_timer");
+            /* set eSCO mSBC setting to T2 as the preferred */
+            p_scb->codec_msbc_settings = BTA_AG_SCO_MSBC_SETTINGS_T2;
+#endif
+            APPL_TRACE_DEBUG("bta_ag_scb_alloc %d", bta_ag_scb_to_idx(p_scb));
+            break;
+        }
+    }
+
+    if (i == BTA_AG_NUM_SCB)
+    {
+        /* out of scbs */
+        p_scb = NULL;
+        APPL_TRACE_WARNING("Out of ag scbs");
+    }
+    return p_scb;
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_scb_dealloc
+**
+** Description      Deallocate a service control block.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_ag_scb_dealloc(tBTA_AG_SCB *p_scb)
+{
+    UINT8   idx;
+    BOOLEAN allocated = FALSE;
+
+    APPL_TRACE_DEBUG("bta_ag_scb_dealloc %d", bta_ag_scb_to_idx(p_scb));
+
+    /* stop and free timers */
+    alarm_free(p_scb->ring_timer);
+#if (BTM_WBS_INCLUDED == TRUE)
+    alarm_free(p_scb->codec_negotiation_timer);
+#endif
+    alarm_free(p_scb->collision_timer);
+
+    /* initialize control block */
+    memset(p_scb, 0, sizeof(tBTA_AG_SCB));
+    p_scb->sco_idx = BTM_INVALID_SCO_INDEX;
+
+    /* If all scbs are deallocated, callback with disable event */
+    if (!bta_sys_is_register (BTA_ID_AG))
+    {
+        for (idx = 0; idx < BTA_AG_NUM_SCB; idx++)
+        {
+            if (bta_ag_cb.scb[idx].in_use)
+            {
+                allocated = TRUE;
+                break;
+            }
+        }
+
+        if (!allocated)
+        {
+            (*bta_ag_cb.p_cback)(BTA_AG_DISABLE_EVT, NULL);
+        }
+    }
+
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_scb_to_idx
+**
+** Description      Given a pointer to an scb, return its index.
+**
+**
+** Returns          Index of scb.
+**
+*******************************************************************************/
+UINT16 bta_ag_scb_to_idx(tBTA_AG_SCB *p_scb)
+{
+    /* use array arithmetic to determine index */
+    return ((UINT16) (p_scb - bta_ag_cb.scb)) + 1;
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_scb_by_idx
+**
+** Description      Given an scb index return pointer to scb.
+**
+**
+** Returns          Pointer to scb or NULL if not allocated.
+**
+*******************************************************************************/
+tBTA_AG_SCB *bta_ag_scb_by_idx(UINT16 idx)
+{
+    tBTA_AG_SCB     *p_scb;
+
+    /* verify index */
+    if (idx > 0 && idx <= BTA_AG_NUM_SCB)
+    {
+        p_scb = &bta_ag_cb.scb[idx - 1];
+        if (!p_scb->in_use)
+        {
+            p_scb = NULL;
+            APPL_TRACE_WARNING("ag scb idx %d not allocated", idx);
+        }
+    }
+    else
+    {
+        p_scb = NULL;
+        APPL_TRACE_DEBUG("ag scb idx %d out of range", idx);
+    }
+    return p_scb;
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_service_to_idx
+**
+** Description      Given a BTA service mask convert to profile index.
+**
+**
+** Returns          Profile ndex of scb.
+**
+*******************************************************************************/
+UINT8 bta_ag_service_to_idx(tBTA_SERVICE_MASK services)
+{
+    if (services & BTA_HFP_SERVICE_MASK)
+    {
+        return BTA_AG_HFP;
+    }
+    else
+    {
+        return BTA_AG_HSP;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_idx_by_bdaddr
+**
+** Description      Find SCB associated with peer BD address.
+**
+**
+** Returns          Index of SCB or zero if none found.
+**
+*******************************************************************************/
+UINT16 bta_ag_idx_by_bdaddr(BD_ADDR peer_addr)
+{
+    tBTA_AG_SCB     *p_scb = &bta_ag_cb.scb[0];
+    UINT16          i;
+
+    if (peer_addr != NULL)
+    {
+        for (i = 0; i < BTA_AG_NUM_SCB; i++, p_scb++)
+        {
+            if (p_scb->in_use && !bdcmp(peer_addr, p_scb->peer_addr))
+            {
+                return (i + 1);
+            }
+        }
+    }
+
+    /* no scb found */
+    APPL_TRACE_WARNING("No ag scb for peer addr");
+    return 0;
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_other_scb_open
+**
+** Description      Check whether any other scb is in open state.
+**
+**
+** Returns          TRUE if another scb is in open state, FALSE otherwise.
+**
+*******************************************************************************/
+BOOLEAN bta_ag_other_scb_open(tBTA_AG_SCB *p_curr_scb)
+{
+    tBTA_AG_SCB     *p_scb = &bta_ag_cb.scb[0];
+    int             i;
+
+    for (i = 0; i < BTA_AG_NUM_SCB; i++, p_scb++)
+    {
+        if (p_scb->in_use && p_scb != p_curr_scb && p_scb->state == BTA_AG_OPEN_ST)
+        {
+            return TRUE;
+        }
+    }
+
+    /* no other scb found */
+    APPL_TRACE_DEBUG("No other ag scb open");
+    return FALSE;
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_scb_open
+**
+** Description      Check whether given scb is in open state.
+**
+**
+** Returns          TRUE if scb is in open state, FALSE otherwise.
+**
+*******************************************************************************/
+BOOLEAN bta_ag_scb_open(tBTA_AG_SCB *p_curr_scb)
+{
+    if (p_curr_scb && p_curr_scb->in_use && p_curr_scb->state == BTA_AG_OPEN_ST)
+    {
+        return TRUE;
+    }
+
+    return FALSE;
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_get_other_idle_scb
+**
+** Description      Return other scb if it is in INIT st.
+**
+**
+** Returns          Pointer to other scb if INIT st, NULL otherwise.
+**
+*******************************************************************************/
+tBTA_AG_SCB *bta_ag_get_other_idle_scb (tBTA_AG_SCB *p_curr_scb)
+{
+    tBTA_AG_SCB     *p_scb = &bta_ag_cb.scb[0];
+    UINT8   xx;
+
+    for (xx = 0; xx < BTA_AG_NUM_SCB; xx++, p_scb++)
+    {
+        if (p_scb->in_use && (p_scb != p_curr_scb) && (p_scb->state == BTA_AG_INIT_ST))
+        {
+            return p_scb;
+        }
+    }
+
+    /* no other scb found */
+    APPL_TRACE_DEBUG("bta_ag_get_other_idle_scb: No idle AG scb");
+    return NULL;
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_collision_timer_cback
+**
+** Description      AG connection collision timer callback
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_ag_collision_timer_cback(void *data)
+{
+    tBTA_AG_SCB *p_scb = (tBTA_AG_SCB *)data;
+
+    APPL_TRACE_DEBUG("%s", __func__);
+
+    /* If the peer haven't opened AG connection     */
+    /* we will restart opening process.             */
+    bta_ag_resume_open(p_scb);
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_collision_cback
+**
+** Description      Get notified about collision.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_ag_collision_cback (tBTA_SYS_CONN_STATUS status, UINT8 id,
+                                    UINT8 app_id, BD_ADDR peer_addr)
+{
+    UINT16  handle;
+    tBTA_AG_SCB *p_scb;
+    UNUSED(status);
+    UNUSED(app_id);
+
+    /* Check if we have opening scb for the peer device. */
+    handle = bta_ag_idx_by_bdaddr (peer_addr);
+    p_scb = bta_ag_scb_by_idx (handle);
+
+    if (p_scb && (p_scb->state == BTA_AG_OPENING_ST))
+    {
+        if (id == BTA_ID_SYS)   /* ACL collision */
+        {
+            APPL_TRACE_WARNING ("AG found collision (ACL) ...");
+        }
+        else if (id == BTA_ID_AG)   /* RFCOMM collision */
+        {
+            APPL_TRACE_WARNING ("AG found collision (RFCOMM) ...");
+        }
+        else
+        {
+            APPL_TRACE_WARNING ("AG found collision (\?\?\?) ...");
+        }
+
+        p_scb->state = BTA_AG_INIT_ST;
+
+        /* Cancel SDP if it had been started. */
+        if(p_scb->p_disc_db)
+        {
+            (void)SDP_CancelServiceSearch (p_scb->p_disc_db);
+            bta_ag_free_db(p_scb, NULL);
+        }
+
+        /* reopen registered servers */
+        /* Collision may be detected before or after we close servers. */
+        if (bta_ag_is_server_closed (p_scb))
+            bta_ag_start_servers(p_scb, p_scb->reg_services);
+
+        /* Start timer to han */
+        alarm_set_on_queue(p_scb->collision_timer, BTA_AG_COLLISION_TIMEOUT_MS,
+                           bta_ag_collision_timer_cback, p_scb,
+                           btu_bta_alarm_queue);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_resume_open
+**
+** Description      Resume opening process.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_ag_resume_open (tBTA_AG_SCB *p_scb)
+{
+    if (p_scb)
+    {
+        APPL_TRACE_DEBUG ("bta_ag_resume_open, Handle(%d)", bta_ag_scb_to_idx(p_scb));
+
+        /* resume opening process.  */
+        if (p_scb->state == BTA_AG_INIT_ST)
+        {
+            p_scb->state = BTA_AG_OPENING_ST;
+            bta_ag_start_open (p_scb, NULL);
+        }
+    }
+    else
+    {
+        APPL_TRACE_ERROR ("bta_ag_resume_open, Null p_scb");
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_api_enable
+**
+** Description      Handle an API enable event.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_ag_api_enable(tBTA_AG_DATA *p_data)
+{
+    /* initialize control block */
+    for (size_t i = 0; i < BTA_AG_NUM_SCB; i++) {
+        alarm_free(bta_ag_cb.scb[i].ring_timer);
+#if (BTM_WBS_INCLUDED == TRUE)
+        alarm_free(bta_ag_cb.scb[i].codec_negotiation_timer);
+#endif
+        alarm_free(bta_ag_cb.scb[i].collision_timer);
+    }
+    memset(&bta_ag_cb, 0, sizeof(tBTA_AG_CB));
+
+    /* store callback function */
+    bta_ag_cb.p_cback = p_data->api_enable.p_cback;
+    bta_ag_cb.parse_mode = p_data->api_enable.parse_mode;
+
+    /* call init call-out */
+    bta_ag_co_init();
+
+    bta_sys_collision_register (BTA_ID_AG, bta_ag_collision_cback);
+
+    /* call callback with enable event */
+    (*bta_ag_cb.p_cback)(BTA_AG_ENABLE_EVT, NULL);
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_api_disable
+**
+** Description      Handle an API disable event.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_ag_api_disable(tBTA_AG_DATA *p_data)
+{
+    /* deregister all scbs in use */
+    tBTA_AG_SCB     *p_scb = &bta_ag_cb.scb[0];
+    BOOLEAN         do_dereg = FALSE;
+    int             i;
+
+    if (!bta_sys_is_register (BTA_ID_AG))
+    {
+        APPL_TRACE_ERROR("BTA AG is already disabled, ignoring ...");
+        return;
+    }
+
+    /* De-register with BTA system manager */
+    bta_sys_deregister(BTA_ID_AG);
+
+    for (i = 0; i < BTA_AG_NUM_SCB; i++, p_scb++)
+    {
+        if (p_scb->in_use)
+        {
+            bta_ag_sm_execute(p_scb, BTA_AG_API_DEREGISTER_EVT, p_data);
+            do_dereg = TRUE;
+        }
+    }
+
+    if (!do_dereg)
+    {
+        /* Done, send callback evt to app */
+        (*bta_ag_cb.p_cback)(BTA_AG_DISABLE_EVT, NULL);
+    }
+
+    bta_sys_collision_register (BTA_ID_AG, NULL);
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_api_register
+**
+** Description      Handle an API event registers a new service.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_ag_api_register(tBTA_AG_DATA *p_data)
+{
+    tBTA_AG_SCB     *p_scb;
+    tBTA_AG_REGISTER reg;
+
+    /* allocate an scb */
+    if ((p_scb = bta_ag_scb_alloc()) != NULL)
+    {
+        APPL_TRACE_DEBUG("bta_ag_api_register: p_scb 0x%08x ", p_scb);
+        bta_ag_sm_execute(p_scb, p_data->hdr.event, p_data);
+    }
+    else
+    {
+        reg.status = BTA_AG_FAIL_RESOURCES;
+        (*bta_ag_cb.p_cback)(BTA_AG_REGISTER_EVT, (tBTA_AG *) &reg);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_api_result
+**
+** Description      Handle an API result event.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_ag_api_result(tBTA_AG_DATA *p_data)
+{
+    tBTA_AG_SCB     *p_scb;
+    int             i;
+
+    if (p_data->hdr.layer_specific != BTA_AG_HANDLE_ALL)
+    {
+        if ((p_scb = bta_ag_scb_by_idx(p_data->hdr.layer_specific)) != NULL)
+        {
+            APPL_TRACE_DEBUG("bta_ag_api_result: p_scb 0x%08x ", p_scb);
+            bta_ag_sm_execute(p_scb, BTA_AG_API_RESULT_EVT, p_data);
+        }
+    }
+    else
+    {
+        for (i = 0, p_scb = &bta_ag_cb.scb[0]; i < BTA_AG_NUM_SCB; i++, p_scb++)
+        {
+            if (p_scb->in_use && p_scb->svc_conn)
+            {
+                APPL_TRACE_DEBUG("bta_ag_api_result p_scb 0x%08x ", p_scb);
+                bta_ag_sm_execute(p_scb, BTA_AG_API_RESULT_EVT, p_data);
+            }
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_sm_execute
+**
+** Description      State machine event handling function for AG
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_ag_sm_execute(tBTA_AG_SCB *p_scb, UINT16 event, tBTA_AG_DATA *p_data)
+{
+    tBTA_AG_ST_TBL      state_table;
+    UINT8               action;
+    int                 i;
+
+#if BTA_AG_DEBUG == TRUE
+    UINT16  in_event = event;
+    UINT8   in_state = p_scb->state;
+
+    /* Ignore displaying of AT results when not connected (Ignored in state machine) */
+    if (in_event != BTA_AG_API_RESULT_EVT || p_scb->state == BTA_AG_OPEN_ST)
+    {
+        APPL_TRACE_EVENT("AG evt (hdl 0x%04x): State %d (%s), Event 0x%04x (%s)",
+                           bta_ag_scb_to_idx(p_scb),
+                           p_scb->state, bta_ag_state_str(p_scb->state),
+                           event, bta_ag_evt_str(event, p_data->api_result.result));
+    }
+#else
+    APPL_TRACE_EVENT("AG evt (hdl 0x%04x): State %d, Event 0x%04x",
+                      bta_ag_scb_to_idx(p_scb), p_scb->state, event);
+#endif
+
+    event &= 0x00FF;
+    if (event >= (BTA_AG_MAX_EVT & 0x00FF))
+    {
+        APPL_TRACE_ERROR("AG evt out of range, ignoring...");
+        return;
+    }
+
+    /* look up the state table for the current state */
+    state_table = bta_ag_st_tbl[p_scb->state];
+
+    /* set next state */
+    p_scb->state = state_table[event][BTA_AG_NEXT_STATE];
+
+    /* execute action functions */
+    for (i = 0; i < BTA_AG_ACTIONS; i++)
+    {
+        if ((action = state_table[event][i]) != BTA_AG_IGNORE)
+        {
+            (*bta_ag_action[action])(p_scb, p_data);
+        }
+        else
+        {
+            break;
+        }
+    }
+#if BTA_AG_DEBUG == TRUE
+    if (p_scb->state != in_state)
+    {
+        APPL_TRACE_EVENT("BTA AG State Change: [%s] -> [%s] after Event [%s]",
+                      bta_ag_state_str(in_state),
+                      bta_ag_state_str(p_scb->state),
+                      bta_ag_evt_str(in_event, p_data->api_result.result));
+    }
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_hdl_event
+**
+** Description      Data gateway main event handling function.
+**
+**
+** Returns          BOOLEAN
+**
+*******************************************************************************/
+BOOLEAN bta_ag_hdl_event(BT_HDR *p_msg)
+{
+    tBTA_AG_SCB *p_scb;
+
+    APPL_TRACE_DEBUG("bta_ag_hdl_event: Event 0x%04x ", p_msg->event);
+    switch (p_msg->event)
+    {
+        /* handle enable event */
+        case BTA_AG_API_ENABLE_EVT:
+            bta_ag_api_enable((tBTA_AG_DATA *) p_msg);
+            break;
+
+        /* handle disable event */
+        case BTA_AG_API_DISABLE_EVT:
+            bta_ag_api_disable((tBTA_AG_DATA *) p_msg);
+            break;
+
+        /* handle register event */
+        case BTA_AG_API_REGISTER_EVT:
+            bta_ag_api_register((tBTA_AG_DATA *) p_msg);
+            break;
+
+        /* handle result event */
+        case BTA_AG_API_RESULT_EVT:
+            bta_ag_api_result((tBTA_AG_DATA *) p_msg);
+            break;
+
+        /* all others reference scb by handle */
+        default:
+            if ((p_scb = bta_ag_scb_by_idx(p_msg->layer_specific)) != NULL)
+            {
+                APPL_TRACE_DEBUG("bta_ag_hdl_event: p_scb 0x%08x ", p_scb);
+                bta_ag_sm_execute(p_scb, p_msg->event, (tBTA_AG_DATA *) p_msg);
+            }
+            break;
+    }
+    return TRUE;
+}
+
+#if BTA_AG_DEBUG == TRUE
+static char *bta_ag_evt_str(UINT16 event, tBTA_AG_RES result)
+{
+    switch (event)
+    {
+    case BTA_AG_API_REGISTER_EVT:
+        return "Register Request";
+    case BTA_AG_API_DEREGISTER_EVT:
+        return "Deregister Request";
+    case BTA_AG_API_OPEN_EVT:
+        return "Open SLC Request";
+    case BTA_AG_API_CLOSE_EVT:
+        return "Close SLC Request";
+    case BTA_AG_API_AUDIO_OPEN_EVT:
+        return "Open Audio Request";
+    case BTA_AG_API_AUDIO_CLOSE_EVT:
+        return "Close Audio Request";
+    case BTA_AG_API_RESULT_EVT:
+        switch (result)
+        {
+        case BTA_AG_SPK_RES:            return ("AT Result  BTA_AG_SPK_RES");
+        case BTA_AG_MIC_RES:            return ("AT Result  BTA_AG_MIC_RES");
+        case BTA_AG_INBAND_RING_RES:    return ("AT Result  BTA_AG_INBAND_RING_RES");
+        case BTA_AG_CIND_RES:           return ("AT Result  BTA_AG_CIND_RES");
+        case BTA_AG_BINP_RES:           return ("AT Result  BTA_AG_BINP_RES");
+        case BTA_AG_IND_RES:            return ("AT Result  BTA_AG_IND_RES");
+        case BTA_AG_BVRA_RES:           return ("AT Result  BTA_AG_BVRA_RES");
+        case BTA_AG_CNUM_RES:           return ("AT Result  BTA_AG_CNUM_RES");
+        case BTA_AG_BTRH_RES:           return ("AT Result  BTA_AG_BTRH_RES");
+        case BTA_AG_CLCC_RES:           return ("AT Result  BTA_AG_CLCC_RES");
+        case BTA_AG_COPS_RES:           return ("AT Result  BTA_AG_COPS_RES");
+        case BTA_AG_IN_CALL_RES:        return ("AT Result  BTA_AG_IN_CALL_RES");
+        case BTA_AG_IN_CALL_CONN_RES:   return ("AT Result  BTA_AG_IN_CALL_CONN_RES");
+        case BTA_AG_CALL_WAIT_RES:      return ("AT Result  BTA_AG_CALL_WAIT_RES");
+        case BTA_AG_OUT_CALL_ORIG_RES:  return ("AT Result  BTA_AG_OUT_CALL_ORIG_RES");
+        case BTA_AG_OUT_CALL_ALERT_RES: return ("AT Result  BTA_AG_OUT_CALL_ALERT_RES");
+        case BTA_AG_OUT_CALL_CONN_RES:  return ("AT Result  BTA_AG_OUT_CALL_CONN_RES");
+        case BTA_AG_CALL_CANCEL_RES:    return ("AT Result  BTA_AG_CALL_CANCEL_RES");
+        case BTA_AG_END_CALL_RES:       return ("AT Result  BTA_AG_END_CALL_RES");
+        case BTA_AG_UNAT_RES:           return ("AT Result  BTA_AG_UNAT_RES");
+        default:                        return ("Unknown AG Result");
+        }
+    case BTA_AG_API_SETCODEC_EVT:
+        return "Set Codec Request";
+    case BTA_AG_RFC_OPEN_EVT:
+        return "RFC Opened";
+    case BTA_AG_RFC_CLOSE_EVT:
+        return "RFC Closed";
+    case BTA_AG_RFC_SRV_CLOSE_EVT:
+        return "RFC SRV Closed";
+    case BTA_AG_RFC_DATA_EVT:
+        return "RFC Data";
+    case BTA_AG_SCO_OPEN_EVT:
+        return "Audio Opened";
+    case BTA_AG_SCO_CLOSE_EVT:
+        return "Audio Closed";
+    case BTA_AG_DISC_ACP_RES_EVT:
+        return "Discovery ACP Result";
+    case BTA_AG_DISC_INT_RES_EVT:
+        return "Discovery INT Result";
+    case BTA_AG_DISC_OK_EVT:
+        return "Discovery OK";
+    case BTA_AG_DISC_FAIL_EVT:
+        return "Discovery Failed";
+    case BTA_AG_CI_RX_WRITE_EVT:
+        return "CI RX Write";
+    case BTA_AG_RING_TIMEOUT_EVT:
+        return "Ring Timeout";
+    case BTA_AG_SVC_TIMEOUT_EVT:
+        return "Service Timeout";
+    case BTA_AG_API_ENABLE_EVT:
+        return "Enable AG";
+    case BTA_AG_API_DISABLE_EVT:
+        return "Disable AG";
+    case BTA_AG_CI_SCO_DATA_EVT:
+        return "SCO data Callin";
+    case BTA_AG_CI_SLC_READY_EVT:
+        return "SLC Ready Callin";
+    default:
+        return "Unknown AG Event";
+    }
+}
+
+static char *bta_ag_state_str(UINT8 state)
+{
+    switch (state)
+    {
+    case BTA_AG_INIT_ST:
+        return "Initial";
+    case BTA_AG_OPENING_ST:
+        return "Opening";
+    case BTA_AG_OPEN_ST:
+        return "Open";
+    case BTA_AG_CLOSING_ST:
+        return "Closing";
+    default:
+        return "Unknown AG State";
+    }
+}
+
+#endif
diff --git a/rtkbt/code/bt/bta/ag/bta_ag_rfc.c b/rtkbt/code/bt/bta/ag/bta_ag_rfc.c
new file mode 100755
index 0000000..d3f2705
--- /dev/null
+++ b/rtkbt/code/bt/bta/ag/bta_ag_rfc.c
@@ -0,0 +1,421 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2004-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains the audio gateway functions controlling the RFCOMM
+ *  connections.
+ *
+ ******************************************************************************/
+
+#include <string.h>
+#include "bta_api.h"
+#include "bta_sys.h"
+#include "bta_ag_api.h"
+#include "bta_ag_int.h"
+#include "bta_ag_co.h"
+#include "btm_api.h"
+#include "port_api.h"
+#include "rfcdefs.h"
+#include "bt_common.h"
+#include "utl.h"
+
+/* Event mask for RfCOMM port callback */
+#define BTA_AG_PORT_EV_MASK         PORT_EV_RXCHAR
+
+/* each scb has its own rfcomm callbacks */
+void bta_ag_port_cback_1(UINT32 code, UINT16 port_handle);
+void bta_ag_port_cback_2(UINT32 code, UINT16 port_handle);
+void bta_ag_port_cback_3(UINT32 code, UINT16 port_handle);
+
+void bta_ag_mgmt_cback_1(UINT32 code, UINT16 port_handle);
+void bta_ag_mgmt_cback_2(UINT32 code, UINT16 port_handle);
+void bta_ag_mgmt_cback_3(UINT32 code, UINT16 port_handle);
+
+int bta_ag_data_cback_1(UINT16 port_handle, void *p_data, UINT16 len);
+int bta_ag_data_cback_2(UINT16 port_handle, void *p_data, UINT16 len);
+int bta_ag_data_cback_3(UINT16 port_handle, void *p_data, UINT16 len);
+
+/* rfcomm callback function tables */
+typedef tPORT_CALLBACK *tBTA_AG_PORT_CBACK;
+const tBTA_AG_PORT_CBACK bta_ag_port_cback_tbl[] =
+{
+    bta_ag_port_cback_1,
+    bta_ag_port_cback_2,
+    bta_ag_port_cback_3
+};
+
+const tBTA_AG_PORT_CBACK bta_ag_mgmt_cback_tbl[] =
+{
+    bta_ag_mgmt_cback_1,
+    bta_ag_mgmt_cback_2,
+    bta_ag_mgmt_cback_3
+};
+
+typedef tPORT_DATA_CALLBACK *tBTA_AG_DATA_CBACK;
+const tBTA_AG_DATA_CBACK bta_ag_data_cback_tbl[] =
+{
+    bta_ag_data_cback_1,
+    bta_ag_data_cback_2,
+    bta_ag_data_cback_3
+};
+
+/*******************************************************************************
+**
+** Function         bta_ag_port_cback
+**
+** Description      RFCOMM Port callback
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_ag_port_cback(UINT32 code, UINT16 port_handle, UINT16 handle)
+{
+    tBTA_AG_SCB *p_scb;
+    UNUSED(code);
+
+    if ((p_scb = bta_ag_scb_by_idx(handle)) != NULL)
+    {
+        /* ignore port events for port handles other than connected handle */
+        if (port_handle != p_scb->conn_handle)
+        {
+            APPL_TRACE_DEBUG("ag_port_cback ignoring handle:%d conn_handle = %d other handle = %d",
+                              port_handle, p_scb->conn_handle, handle);
+            return;
+        }
+
+        BT_HDR *p_buf = (BT_HDR *)osi_malloc(sizeof(BT_HDR));
+        p_buf->event = BTA_AG_RFC_DATA_EVT;
+        p_buf->layer_specific = handle;
+        bta_sys_sendmsg(p_buf);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_mgmt_cback
+**
+** Description      RFCOMM management callback
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_ag_mgmt_cback(UINT32 code, UINT16 port_handle, UINT16 handle)
+{
+    tBTA_AG_SCB     *p_scb;
+    UINT16          event;
+    UINT8           i;
+    BOOLEAN         found_handle = FALSE;
+
+    APPL_TRACE_DEBUG("ag_mgmt_cback : code = %d, port_handle = %d, handle = %d",
+                        code, port_handle, handle);
+
+    if ((p_scb = bta_ag_scb_by_idx(handle)) != NULL)
+    {
+        /* ignore close event for port handles other than connected handle */
+        if ((code != PORT_SUCCESS) && (port_handle != p_scb->conn_handle))
+        {
+            APPL_TRACE_DEBUG("ag_mgmt_cback ignoring handle:%d", port_handle);
+            return;
+        }
+
+        if (code == PORT_SUCCESS)
+        {
+            if (p_scb->conn_handle)     /* Outgoing connection */
+            {
+                if (port_handle == p_scb->conn_handle)
+                    found_handle = TRUE;
+            }
+            else                        /* Incoming connection */
+            {
+                for (i = 0; i < BTA_AG_NUM_IDX; i++)
+                {
+                    if (port_handle == p_scb->serv_handle[i])
+                        found_handle = TRUE;
+                }
+            }
+
+            if (!found_handle)
+            {
+                APPL_TRACE_ERROR ("bta_ag_mgmt_cback: PORT_SUCCESS, ignoring handle = %d", port_handle);
+                return;
+            }
+
+            event = BTA_AG_RFC_OPEN_EVT;
+        }
+        /* distinguish server close events */
+        else if (port_handle == p_scb->conn_handle)
+        {
+            event = BTA_AG_RFC_CLOSE_EVT;
+        }
+        else
+        {
+            event = BTA_AG_RFC_SRV_CLOSE_EVT;
+        }
+
+        tBTA_AG_RFC *p_buf = (tBTA_AG_RFC *)osi_malloc(sizeof(tBTA_AG_RFC));
+        p_buf->hdr.event = event;
+        p_buf->hdr.layer_specific = handle;
+        p_buf->port_handle = port_handle;
+        bta_sys_sendmsg(p_buf);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_data_cback
+**
+** Description      RFCOMM data callback
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static int bta_ag_data_cback(UINT16 port_handle, void *p_data, UINT16 len, UINT16 handle)
+{
+    UNUSED(port_handle);
+
+    /* call data call-out directly */
+    bta_ag_co_tx_write(handle, (UINT8 *) p_data, len);
+    return 0;
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_port_cback_1 to 3
+**                  bta_ag_mgmt_cback_1 to 3
+**
+** Description      RFCOMM callback functions.  This is an easy way to
+**                  distinguish scb from the callback.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_ag_mgmt_cback_1(UINT32 code, UINT16 handle) {bta_ag_mgmt_cback(code, handle, 1);}
+void bta_ag_mgmt_cback_2(UINT32 code, UINT16 handle) {bta_ag_mgmt_cback(code, handle, 2);}
+void bta_ag_mgmt_cback_3(UINT32 code, UINT16 handle) {bta_ag_mgmt_cback(code, handle, 3);}
+void bta_ag_port_cback_1(UINT32 code, UINT16 handle) {bta_ag_port_cback(code, handle, 1);}
+void bta_ag_port_cback_2(UINT32 code, UINT16 handle) {bta_ag_port_cback(code, handle, 2);}
+void bta_ag_port_cback_3(UINT32 code, UINT16 handle) {bta_ag_port_cback(code, handle, 3);}
+
+/*******************************************************************************
+**
+** Function         bta_ag_data_cback_1 to 3
+**
+** Description      RFCOMM data callback functions.  This is an easy way to
+**                  distinguish scb from the callback.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+int bta_ag_data_cback_1(UINT16 port_handle, void *p_data, UINT16 len)
+{
+    return bta_ag_data_cback(port_handle, p_data, len, 1);
+}
+int bta_ag_data_cback_2(UINT16 port_handle, void *p_data, UINT16 len)
+{
+    return bta_ag_data_cback(port_handle, p_data, len, 2);
+}
+int bta_ag_data_cback_3(UINT16 port_handle, void *p_data, UINT16 len)
+{
+    return bta_ag_data_cback(port_handle, p_data, len, 3);
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_setup_port
+**
+** Description      Setup RFCOMM port for use by AG.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_ag_setup_port(tBTA_AG_SCB *p_scb, UINT16 handle)
+{
+    UINT16 i = bta_ag_scb_to_idx(p_scb) - 1;
+
+    /* set up data callback if using pass through mode */
+    if (bta_ag_cb.parse_mode == BTA_AG_PASS_THROUGH)
+    {
+        PORT_SetDataCallback(handle, bta_ag_data_cback_tbl[i]);
+    }
+
+    PORT_SetEventMask(handle, BTA_AG_PORT_EV_MASK);
+    PORT_SetEventCallback(handle, bta_ag_port_cback_tbl[i]);
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_start_servers
+**
+** Description      Setup RFCOMM servers for use by AG.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_ag_start_servers(tBTA_AG_SCB *p_scb, tBTA_SERVICE_MASK services)
+{
+    int i;
+    int bta_ag_port_status;
+
+    services >>= BTA_HSP_SERVICE_ID;
+    for (i = 0; i < BTA_AG_NUM_IDX && services != 0; i++, services >>= 1)
+    {
+        /* if service is set in mask */
+        if (services & 1)
+        {
+            BTM_SetSecurityLevel(FALSE, "", bta_ag_sec_id[i], p_scb->serv_sec_mask,
+                BT_PSM_RFCOMM, BTM_SEC_PROTO_RFCOMM, bta_ag_cb.profile[i].scn);
+
+            bta_ag_port_status =  RFCOMM_CreateConnection(bta_ag_uuid[i], bta_ag_cb.profile[i].scn,
+                TRUE, BTA_AG_MTU, (UINT8 *) bd_addr_any, &(p_scb->serv_handle[i]),
+                bta_ag_mgmt_cback_tbl[bta_ag_scb_to_idx(p_scb) - 1]);
+
+            if( bta_ag_port_status  == PORT_SUCCESS )
+            {
+                bta_ag_setup_port(p_scb, p_scb->serv_handle[i]);
+            }
+            else
+            {
+                /* TODO: CR#137125 to handle to error properly */
+                APPL_TRACE_DEBUG("bta_ag_start_servers: RFCOMM_CreateConnection returned error:%d", bta_ag_port_status);
+            }
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_close_servers
+**
+** Description      Close RFCOMM servers port for use by AG.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_ag_close_servers(tBTA_AG_SCB *p_scb, tBTA_SERVICE_MASK services)
+{
+    int i;
+
+    services >>= BTA_HSP_SERVICE_ID;
+    for (i = 0; i < BTA_AG_NUM_IDX && services != 0; i++, services >>= 1)
+    {
+        /* if service is set in mask */
+        if (services & 1)
+        {
+            RFCOMM_RemoveServer(p_scb->serv_handle[i]);
+            p_scb->serv_handle[i] = 0;
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_is_server_closed
+**
+** Description      Returns TRUE if all servers are closed.
+**
+**
+** Returns          TRUE if all servers are closed, FALSE otherwise
+**
+*******************************************************************************/
+BOOLEAN bta_ag_is_server_closed (tBTA_AG_SCB *p_scb)
+{
+    UINT8 xx;
+    BOOLEAN is_closed = TRUE;
+
+    for (xx = 0; xx < BTA_AG_NUM_IDX; xx++)
+    {
+        if (p_scb->serv_handle[xx] != 0)
+            is_closed = FALSE;
+    }
+
+    return is_closed;
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_rfc_do_open
+**
+** Description      Open an RFCOMM connection to the peer device.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_ag_rfc_do_open(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data)
+{
+    BTM_SetSecurityLevel(TRUE, "", bta_ag_sec_id[p_scb->conn_service],
+        p_scb->cli_sec_mask, BT_PSM_RFCOMM, BTM_SEC_PROTO_RFCOMM, p_scb->peer_scn);
+
+    if (RFCOMM_CreateConnection(bta_ag_uuid[p_scb->conn_service], p_scb->peer_scn,
+            FALSE, BTA_AG_MTU, p_scb->peer_addr, &(p_scb->conn_handle),
+            bta_ag_mgmt_cback_tbl[bta_ag_scb_to_idx(p_scb) - 1]) == PORT_SUCCESS)
+    {
+        bta_ag_setup_port(p_scb, p_scb->conn_handle);
+        APPL_TRACE_DEBUG("bta_ag_rfc_do_open : conn_handle = %d", p_scb->conn_handle);
+    }
+    /* RFCOMM create connection failed; send ourselves RFCOMM close event */
+    else
+    {
+        bta_ag_sm_execute(p_scb, BTA_AG_RFC_CLOSE_EVT, p_data);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_rfc_do_close
+**
+** Description      Close RFCOMM connection.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_ag_rfc_do_close(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data)
+{
+    UNUSED(p_data);
+
+    if (p_scb->conn_handle) {
+        RFCOMM_RemoveConnection(p_scb->conn_handle);
+    } else {
+        /* Close API was called while AG is in Opening state.               */
+        /* Need to trigger the state machine to send callback to the app    */
+        /* and move back to INIT state.                                     */
+        tBTA_AG_RFC *p_buf = (tBTA_AG_RFC *)osi_malloc(sizeof(tBTA_AG_RFC));
+        p_buf->hdr.event = BTA_AG_RFC_CLOSE_EVT;
+        p_buf->hdr.layer_specific = bta_ag_scb_to_idx(p_scb);
+        bta_sys_sendmsg(p_buf);
+
+        /* Cancel SDP if it had been started. */
+        /*
+        if(p_scb->p_disc_db)
+        {
+            (void)SDP_CancelServiceSearch (p_scb->p_disc_db);
+        }
+        */
+    }
+}
+
diff --git a/rtkbt/code/bt/bta/ag/bta_ag_sco.c b/rtkbt/code/bt/bta/ag/bta_ag_sco.c
new file mode 100755
index 0000000..2a5341b
--- /dev/null
+++ b/rtkbt/code/bt/bta/ag/bta_ag_sco.c
@@ -0,0 +1,1744 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2004-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains functions for managing the SCO connection used in AG.
+ *
+ ******************************************************************************/
+
+#include <stddef.h>
+#include "bta_api.h"
+#include "bta_ag_api.h"
+#include "bta_ag_co.h"
+#if (BTM_SCO_HCI_INCLUDED == TRUE )
+#include "bta_dm_co.h"
+#endif
+#include "bta_ag_int.h"
+#include "btm_api.h"
+#include "bt_common.h"
+#include "utl.h"
+
+#ifndef BTA_AG_SCO_DEBUG
+#define BTA_AG_SCO_DEBUG FALSE
+#endif
+
+/* Codec negotiation timeout */
+#ifndef BTA_AG_CODEC_NEGOTIATION_TIMEOUT_MS
+#define BTA_AG_CODEC_NEGOTIATION_TIMEOUT_MS (3 * 1000)          /* 3 seconds */
+#endif
+
+extern fixed_queue_t *btu_bta_alarm_queue;
+
+#if BTA_AG_SCO_DEBUG == TRUE
+static char *bta_ag_sco_evt_str(UINT8 event);
+static char *bta_ag_sco_state_str(UINT8 state);
+#endif
+
+#define BTA_AG_NO_EDR_ESCO  (BTM_SCO_PKT_TYPES_MASK_NO_2_EV3 | \
+                             BTM_SCO_PKT_TYPES_MASK_NO_3_EV3 | \
+                             BTM_SCO_PKT_TYPES_MASK_NO_2_EV5 | \
+                             BTM_SCO_PKT_TYPES_MASK_NO_3_EV5)
+
+/* sco events */
+enum
+{
+    BTA_AG_SCO_LISTEN_E,        /* listen request */
+    BTA_AG_SCO_OPEN_E,          /* open request */
+    BTA_AG_SCO_XFER_E,          /* transfer request */
+#if (BTM_WBS_INCLUDED == TRUE )
+    BTA_AG_SCO_CN_DONE_E,       /* codec negotiation done */
+    BTA_AG_SCO_REOPEN_E,        /* Retry with other codec when failed */
+#endif
+    BTA_AG_SCO_CLOSE_E,         /* close request */
+    BTA_AG_SCO_SHUTDOWN_E,      /* shutdown request */
+    BTA_AG_SCO_CONN_OPEN_E,     /* sco open */
+    BTA_AG_SCO_CONN_CLOSE_E,    /* sco closed */
+    BTA_AG_SCO_CI_DATA_E        /* SCO data ready */
+};
+
+#if (BTM_WBS_INCLUDED == TRUE )
+#define BTA_AG_NUM_CODECS   3
+#define BTA_AG_ESCO_SETTING_IDX_CVSD    0   /* eSCO setting for CVSD */
+#define BTA_AG_ESCO_SETTING_IDX_T1      1   /* eSCO setting for mSBC T1 */
+#define BTA_AG_ESCO_SETTING_IDX_T2      2   /* eSCO setting for mSBC T2 */
+
+static const tBTM_ESCO_PARAMS bta_ag_esco_params[BTA_AG_NUM_CODECS] =
+{
+    /* CVSD */
+    {
+        BTM_64KBITS_RATE,                   /* TX Bandwidth (64 kbits/sec)              */
+        BTM_64KBITS_RATE,                   /* RX Bandwidth (64 kbits/sec)              */
+        0x000a,                             /* 10 ms (HS/HF can use EV3, 2-EV3, 3-EV3)  */
+        BTM_VOICE_SETTING_CVSD,             /* Inp Linear, Air CVSD, 2s Comp, 16bit     */
+       (BTM_SCO_PKT_TYPES_MASK_HV1      +  /* Packet Types                             */
+        BTM_SCO_PKT_TYPES_MASK_HV2      +
+        BTM_SCO_PKT_TYPES_MASK_HV3      +
+        BTM_SCO_PKT_TYPES_MASK_EV3      +
+        BTM_SCO_PKT_TYPES_MASK_EV4      +
+        BTM_SCO_PKT_TYPES_MASK_EV5      +
+        BTM_SCO_PKT_TYPES_MASK_NO_2_EV5 +
+        BTM_SCO_PKT_TYPES_MASK_NO_3_EV5),
+        BTM_ESCO_RETRANS_POWER       /* Retransmission effort                      */
+    },
+    /* mSBC  T1 */
+    {
+        BTM_64KBITS_RATE,                   /* TX Bandwidth (64 kbits/sec), 8000        */
+        BTM_64KBITS_RATE,                   /* RX Bandwidth (64 kbits/sec), 8000        */
+        8,                                  /* 8 ms                                     */
+        BTM_VOICE_SETTING_TRANS,            /* Inp Linear, Transparent, 2s Comp, 16bit  */
+       (BTM_SCO_PKT_TYPES_MASK_EV3      |   /* Packet Types : EV3 + NO_2_EV3            */
+        BTM_SCO_PKT_TYPES_MASK_NO_3_EV3 |
+        BTM_SCO_PKT_TYPES_MASK_NO_2_EV5 |
+        BTM_SCO_PKT_TYPES_MASK_NO_3_EV5 |
+        BTM_SCO_PKT_TYPES_MASK_NO_2_EV3 ),
+        BTM_ESCO_RETRANS_QUALITY       /* Retransmission effort                      */
+    },
+    /* mSBC T2*/
+    {
+        BTM_64KBITS_RATE,                   /* TX Bandwidth (64 kbits/sec), 8000        */
+        BTM_64KBITS_RATE,                   /* RX Bandwidth (64 kbits/sec), 8000        */
+        13,                                 /* 13 ms                                    */
+        BTM_VOICE_SETTING_TRANS,            /* Inp Linear, Transparent, 2s Comp, 16bit  */
+       (BTM_SCO_PKT_TYPES_MASK_EV3      |   /* Packet Types : EV3 + 2-EV3               */
+        BTM_SCO_PKT_TYPES_MASK_NO_3_EV3 |
+        BTM_SCO_PKT_TYPES_MASK_NO_2_EV5 |
+        BTM_SCO_PKT_TYPES_MASK_NO_3_EV5),
+        BTM_ESCO_RETRANS_QUALITY       /* Retransmission effort                      */
+    }
+};
+#else
+/* WBS not included, CVSD by default */
+static const tBTM_ESCO_PARAMS bta_ag_esco_params =
+{
+    BTM_64KBITS_RATE,                   /* TX Bandwidth (64 kbits/sec)              */
+    BTM_64KBITS_RATE,                   /* RX Bandwidth (64 kbits/sec)              */
+    0x000a,                             /* 10 ms (HS/HF can use EV3, 2-EV3, 3-EV3)  */
+    0x0060,                             /* Inp Linear, Air CVSD, 2s Comp, 16bit     */
+    (BTM_SCO_PKT_TYPES_MASK_HV1      +  /* Packet Types                             */
+     BTM_SCO_PKT_TYPES_MASK_HV2      +
+     BTM_SCO_PKT_TYPES_MASK_HV3      +
+     BTM_SCO_PKT_TYPES_MASK_EV3      +
+     BTM_SCO_PKT_TYPES_MASK_EV4      +
+     BTM_SCO_PKT_TYPES_MASK_EV5      +
+     BTM_SCO_PKT_TYPES_MASK_NO_2_EV5 +
+     BTM_SCO_PKT_TYPES_MASK_NO_3_EV5),
+     BTM_ESCO_RETRANS_POWER       /* Retransmission effort                      */
+};
+#endif
+
+/*******************************************************************************
+**
+** Function         bta_ag_sco_conn_cback
+**
+** Description      BTM SCO connection callback.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_ag_sco_conn_cback(UINT16 sco_idx)
+{
+    UINT16  handle;
+    tBTA_AG_SCB *p_scb;
+
+    /* match callback to scb; first check current sco scb */
+    if (bta_ag_cb.sco.p_curr_scb != NULL && bta_ag_cb.sco.p_curr_scb->in_use)
+    {
+        handle = bta_ag_scb_to_idx(bta_ag_cb.sco.p_curr_scb);
+    }
+    /* then check for scb connected to this peer */
+    else
+    {
+        /* Check if SLC is up */
+        handle = bta_ag_idx_by_bdaddr(BTM_ReadScoBdAddr(sco_idx));
+        p_scb = bta_ag_scb_by_idx(handle);
+        if(p_scb && !p_scb->svc_conn)
+            handle = 0;
+    }
+
+    if (handle != 0) {
+        BT_HDR *p_buf = (BT_HDR *)osi_malloc(sizeof(BT_HDR));
+        p_buf->event = BTA_AG_SCO_OPEN_EVT;
+        p_buf->layer_specific = handle;
+        bta_sys_sendmsg(p_buf);
+    } else {
+        /* no match found; disconnect sco, init sco variables */
+        bta_ag_cb.sco.p_curr_scb = NULL;
+        bta_ag_cb.sco.state = BTA_AG_SCO_SHUTDOWN_ST;
+        BTM_RemoveSco(sco_idx);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_sco_disc_cback
+**
+** Description      BTM SCO disconnection callback.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_ag_sco_disc_cback(UINT16 sco_idx)
+{
+    UINT16  handle = 0;
+
+    APPL_TRACE_DEBUG ("bta_ag_sco_disc_cback(): sco_idx: 0x%x  p_cur_scb: 0x%08x  sco.state: %d", sco_idx, bta_ag_cb.sco.p_curr_scb, bta_ag_cb.sco.state);
+
+    APPL_TRACE_DEBUG ("bta_ag_sco_disc_cback(): scb[0] addr: 0x%08x  in_use: %u  sco_idx: 0x%x  sco state: %u",
+                       &bta_ag_cb.scb[0], bta_ag_cb.scb[0].in_use, bta_ag_cb.scb[0].sco_idx, bta_ag_cb.scb[0].state);
+    APPL_TRACE_DEBUG ("bta_ag_sco_disc_cback(): scb[1] addr: 0x%08x  in_use: %u  sco_idx: 0x%x  sco state: %u",
+                       &bta_ag_cb.scb[1], bta_ag_cb.scb[1].in_use, bta_ag_cb.scb[1].sco_idx, bta_ag_cb.scb[1].state);
+
+    /* match callback to scb */
+    if (bta_ag_cb.sco.p_curr_scb != NULL && bta_ag_cb.sco.p_curr_scb->in_use)
+    {
+        /* We only care about callbacks for the active SCO */
+        if (bta_ag_cb.sco.p_curr_scb->sco_idx != sco_idx)
+        {
+            if (bta_ag_cb.sco.p_curr_scb->sco_idx != 0xFFFF)
+                return;
+        }
+        handle  = bta_ag_scb_to_idx(bta_ag_cb.sco.p_curr_scb);
+    }
+
+    if (handle != 0)
+    {
+#if (BTM_SCO_HCI_INCLUDED == TRUE )
+        tBTM_STATUS status = BTM_ConfigScoPath(BTM_SCO_ROUTE_PCM, NULL, NULL, TRUE);
+        APPL_TRACE_DEBUG("bta_ag_sco_disc_cback sco close config status = %d", status);
+        /* SCO clean up here */
+        bta_dm_sco_co_close();
+#endif
+
+#if (BTM_WBS_INCLUDED == TRUE )
+        /* Restore settings */
+        if(bta_ag_cb.sco.p_curr_scb->inuse_codec == BTA_AG_CODEC_MSBC)
+        {
+            /* set_sco_codec(BTM_SCO_CODEC_NONE); we should get a close */
+            BTM_WriteVoiceSettings (BTM_VOICE_SETTING_CVSD);
+
+            /* If SCO open was initiated by AG and failed for mSBC, then attempt
+            mSBC with T1 settings i.e. 'Safe Settings'. If this fails, then switch to CVSD */
+            if (bta_ag_sco_is_opening (bta_ag_cb.sco.p_curr_scb))
+            {
+                if (bta_ag_cb.sco.p_curr_scb->codec_msbc_settings == BTA_AG_SCO_MSBC_SETTINGS_T2)
+                {
+                     APPL_TRACE_DEBUG("Fallback to mSBC T1 settings");
+                     bta_ag_cb.sco.p_curr_scb->codec_msbc_settings = BTA_AG_SCO_MSBC_SETTINGS_T1;
+                }
+                else
+                {
+                    APPL_TRACE_DEBUG("Fallback to CVSD settings");
+                    bta_ag_cb.sco.p_curr_scb->codec_fallback = TRUE;
+                }
+            }
+        }
+
+        bta_ag_cb.sco.p_curr_scb->inuse_codec = BTA_AG_CODEC_NONE;
+#endif
+
+        BT_HDR *p_buf = (BT_HDR *)osi_malloc(sizeof(BT_HDR));
+        p_buf->event = BTA_AG_SCO_CLOSE_EVT;
+        p_buf->layer_specific = handle;
+        bta_sys_sendmsg(p_buf);
+    } else {
+        /* no match found */
+        APPL_TRACE_DEBUG("no scb for ag_sco_disc_cback");
+
+        /* sco could be closed after scb dealloc'ed */
+        if (bta_ag_cb.sco.p_curr_scb != NULL)
+        {
+            bta_ag_cb.sco.p_curr_scb->sco_idx = BTM_INVALID_SCO_INDEX;
+            bta_ag_cb.sco.p_curr_scb = NULL;
+            bta_ag_cb.sco.state = BTA_AG_SCO_SHUTDOWN_ST;
+        }
+    }
+}
+#if (BTM_SCO_HCI_INCLUDED == TRUE )
+/*******************************************************************************
+**
+** Function         bta_ag_sco_read_cback
+**
+** Description      Callback function is the callback function for incoming
+**                  SCO data over HCI.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_ag_sco_read_cback (UINT16 sco_inx, BT_HDR *p_data, tBTM_SCO_DATA_FLAG status)
+{
+    if (status != BTM_SCO_DATA_CORRECT)
+    {
+        APPL_TRACE_DEBUG("bta_ag_sco_read_cback: status(%d)", status);
+    }
+
+    /* Callout function must free the data. */
+    bta_dm_sco_co_in_data (p_data, status);
+}
+#endif
+/*******************************************************************************
+**
+** Function         bta_ag_remove_sco
+**
+** Description      Removes the specified SCO from the system.
+**                  If only_active is TRUE, then SCO is only removed if connected
+**
+** Returns          BOOLEAN   - TRUE if Sco removal was started
+**
+*******************************************************************************/
+static BOOLEAN bta_ag_remove_sco(tBTA_AG_SCB *p_scb, BOOLEAN only_active)
+{
+    BOOLEAN     removed_started = FALSE;
+    tBTM_STATUS	status;
+
+    if (p_scb->sco_idx != BTM_INVALID_SCO_INDEX)
+    {
+        if (!only_active || p_scb->sco_idx == bta_ag_cb.sco.cur_idx)
+        {
+            status = BTM_RemoveSco(p_scb->sco_idx);
+
+            APPL_TRACE_DEBUG("ag remove sco: inx 0x%04x, status:0x%x", p_scb->sco_idx, status);
+
+            if (status == BTM_CMD_STARTED)
+            {
+                /* Sco is connected; set current control block */
+                bta_ag_cb.sco.p_curr_scb = p_scb;
+
+                removed_started = TRUE;
+            }
+            /* If no connection reset the sco handle */
+            else if ( (status == BTM_SUCCESS) || (status == BTM_UNKNOWN_ADDR) )
+            {
+                p_scb->sco_idx = BTM_INVALID_SCO_INDEX;
+            }
+        }
+    }
+    return removed_started;
+}
+
+
+/*******************************************************************************
+**
+** Function         bta_ag_esco_connreq_cback
+**
+** Description      BTM eSCO connection requests and eSCO change requests
+**                  Only the connection requests are processed by BTA.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_ag_esco_connreq_cback(tBTM_ESCO_EVT event, tBTM_ESCO_EVT_DATA *p_data)
+{
+    tBTA_AG_SCB         *p_scb;
+    UINT16               handle;
+    UINT16               sco_inx = p_data->conn_evt.sco_inx;
+
+    /* Only process connection requests */
+    if (event == BTM_ESCO_CONN_REQ_EVT)
+    {
+        if ((handle = bta_ag_idx_by_bdaddr(BTM_ReadScoBdAddr(sco_inx))) != 0 &&
+            ((p_scb = bta_ag_scb_by_idx(handle)) != NULL) && p_scb->svc_conn)
+        {
+            p_scb->sco_idx = sco_inx;
+
+            /* If no other SCO active, allow this one */
+            if (!bta_ag_cb.sco.p_curr_scb)
+            {
+                APPL_TRACE_EVENT("bta_ag_esco_connreq_cback: Accept Conn Request (sco_inx 0x%04x)", sco_inx);
+                bta_ag_sco_conn_rsp(p_scb, &p_data->conn_evt);
+
+                bta_ag_cb.sco.state = BTA_AG_SCO_OPENING_ST;
+                bta_ag_cb.sco.p_curr_scb = p_scb;
+                bta_ag_cb.sco.cur_idx = p_scb->sco_idx;
+            }
+            else    /* Begin a transfer: Close current SCO before responding */
+            {
+                APPL_TRACE_DEBUG("bta_ag_esco_connreq_cback: Begin XFER");
+                bta_ag_cb.sco.p_xfer_scb = p_scb;
+                bta_ag_cb.sco.conn_data = p_data->conn_evt;
+                bta_ag_cb.sco.state = BTA_AG_SCO_OPEN_XFER_ST;
+
+                if (!bta_ag_remove_sco(bta_ag_cb.sco.p_curr_scb, TRUE))
+                {
+                    APPL_TRACE_ERROR("bta_ag_esco_connreq_cback: Nothing to remove so accept Conn Request (sco_inx 0x%04x)", sco_inx);
+                    bta_ag_cb.sco.p_xfer_scb = NULL;
+                    bta_ag_cb.sco.state = BTA_AG_SCO_LISTEN_ST;
+
+                    bta_ag_sco_conn_rsp(p_scb, &p_data->conn_evt);
+                }
+            }
+        }
+        /* If error occurred send reject response immediately */
+        else
+        {
+            APPL_TRACE_WARNING("no scb for bta_ag_esco_connreq_cback or no resources");
+            BTM_EScoConnRsp(p_data->conn_evt.sco_inx, HCI_ERR_HOST_REJECT_RESOURCES, NULL);
+        }
+    }
+    /* Received a change in the esco link */
+    else if (event == BTM_ESCO_CHG_EVT)
+    {
+        APPL_TRACE_EVENT("eSCO change event (inx %d): rtrans %d, rxlen %d, txlen %d, txint %d",
+            p_data->chg_evt.sco_inx,
+            p_data->chg_evt.retrans_window, p_data->chg_evt.rx_pkt_len,
+            p_data->chg_evt.tx_pkt_len, p_data->chg_evt.tx_interval);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_cback_sco
+**
+** Description      Call application callback function with SCO event.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_ag_cback_sco(tBTA_AG_SCB *p_scb, UINT8 event)
+{
+    tBTA_AG_HDR    sco;
+
+    sco.handle = bta_ag_scb_to_idx(p_scb);
+    sco.app_id = p_scb->app_id;
+
+    /* call close cback */
+    (*bta_ag_cb.p_cback)(event, (tBTA_AG *) &sco);
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_create_sco
+**
+** Description
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_ag_create_sco(tBTA_AG_SCB *p_scb, BOOLEAN is_orig)
+{
+    tBTM_STATUS       status;
+    UINT8            *p_bd_addr = NULL;
+    tBTM_ESCO_PARAMS params;
+#if (BTM_WBS_INCLUDED == TRUE )
+    tBTA_AG_PEER_CODEC  esco_codec = BTM_SCO_CODEC_CVSD;
+    int codec_index = 0;
+#endif
+#if (BTM_SCO_HCI_INCLUDED == TRUE )
+    tBTM_SCO_ROUTE_TYPE sco_route;
+    tBTA_CODEC_INFO     codec_info = {BTA_SCO_CODEC_PCM};
+    UINT32              pcm_sample_rate;
+#endif
+
+    /* Make sure this sco handle is not already in use */
+    if (p_scb->sco_idx != BTM_INVALID_SCO_INDEX)
+    {
+        APPL_TRACE_WARNING("bta_ag_create_sco: Index 0x%04x Already In Use!",
+                             p_scb->sco_idx);
+        return;
+    }
+
+#if (BTM_WBS_INCLUDED == TRUE )
+    if ((p_scb->sco_codec == BTM_SCO_CODEC_MSBC) &&
+        !p_scb->codec_fallback &&
+        !p_scb->retry_with_sco_only)
+        esco_codec = BTM_SCO_CODEC_MSBC;
+
+    if (p_scb->codec_fallback)
+    {
+        p_scb->codec_fallback = FALSE;
+
+        /* Force AG to send +BCS for the next audio connection. */
+        p_scb->codec_updated = TRUE;
+    }
+
+    /* If WBS included, use CVSD by default, index is 0 for CVSD by initialization */
+    /* If eSCO codec is mSBC, index is T2 or T1 */
+    if (esco_codec == BTM_SCO_CODEC_MSBC)
+    {
+        if (p_scb->codec_msbc_settings == BTA_AG_SCO_MSBC_SETTINGS_T2)
+        {
+            codec_index = BTA_AG_ESCO_SETTING_IDX_T2;
+        }
+        else
+        {
+            codec_index = BTA_AG_ESCO_SETTING_IDX_T1;
+        }
+    }
+
+    params = bta_ag_esco_params[codec_index];
+#else
+    /* When WBS is not included, use CVSD by default */
+    params = bta_ag_esco_params;
+#endif
+
+    if(bta_ag_cb.sco.param_updated) /* If we do not use the default parameters */
+        params = bta_ag_cb.sco.params;
+
+    if(!bta_ag_cb.sco.param_updated)
+    {
+#if (BTM_WBS_INCLUDED == TRUE)
+        if (esco_codec == BTM_SCO_CODEC_CVSD)   /* For CVSD */
+#endif
+        {
+            /* Use the application packet types (5 slot EV packets not allowed) */
+            params.packet_types = p_bta_ag_cfg->sco_pkt_types     |
+                                  BTM_SCO_PKT_TYPES_MASK_NO_2_EV5 |
+                                  BTM_SCO_PKT_TYPES_MASK_NO_3_EV5;
+        }
+    }
+
+    /* if initiating set current scb and peer bd addr */
+    if (is_orig)
+    {
+        /* Attempt to use eSCO if remote host supports HFP >= 1.5 */
+        /* Need to find out from SIG if HSP can use eSCO; for now use SCO */
+        if (p_scb->conn_service == BTA_AG_HFP && p_scb->peer_version >= HFP_VERSION_1_5 && !p_scb->retry_with_sco_only)
+        {
+
+            BTM_SetEScoMode(BTM_LINK_TYPE_ESCO, &params);
+            /* If ESCO or EDR ESCO, retry with SCO only in case of failure */
+            if((params.packet_types & BTM_ESCO_LINK_ONLY_MASK)
+               ||!((params.packet_types & ~(BTM_ESCO_LINK_ONLY_MASK | BTM_SCO_LINK_ONLY_MASK)) ^ BTA_AG_NO_EDR_ESCO))
+            {
+#if (BTM_WBS_INCLUDED == TRUE )
+                if (esco_codec != BTA_AG_CODEC_MSBC)
+                {
+                    p_scb->retry_with_sco_only = TRUE;
+                    APPL_TRACE_API("Setting retry_with_sco_only to TRUE");
+                }
+                else    /* Do not use SCO when using mSBC */
+                {
+                    p_scb->retry_with_sco_only = FALSE;
+                    APPL_TRACE_API("Setting retry_with_sco_only to FALSE");
+                }
+#else
+                p_scb->retry_with_sco_only = TRUE;
+                APPL_TRACE_API("Setting retry_with_sco_only to TRUE");
+#endif
+            }
+        }
+        else
+        {
+            if(p_scb->retry_with_sco_only)
+                APPL_TRACE_API("retrying with SCO only");
+            p_scb->retry_with_sco_only = FALSE;
+
+            BTM_SetEScoMode(BTM_LINK_TYPE_SCO, &params);
+        }
+
+        bta_ag_cb.sco.p_curr_scb = p_scb;
+
+        /* tell sys to stop av if any */
+        bta_sys_sco_use(BTA_ID_AG, p_scb->app_id, p_scb->peer_addr);
+
+#if (BTM_WBS_INCLUDED == TRUE )
+        /* Allow any platform specific pre-SCO set up to take place */
+        bta_ag_co_audio_state(bta_ag_scb_to_idx(p_scb), p_scb->app_id, SCO_STATE_SETUP,
+                esco_codec);
+
+        /* This setting may not be necessary */
+        /* To be verified with stable 2049 boards */
+        if (esco_codec == BTA_AG_CODEC_MSBC)
+            BTM_WriteVoiceSettings (BTM_VOICE_SETTING_TRANS);
+        else
+            BTM_WriteVoiceSettings (BTM_VOICE_SETTING_CVSD);
+        /* save the current codec because sco_codec can be updated while SCO is open. */
+        p_scb->inuse_codec = esco_codec;
+#else
+        /* Allow any platform specific pre-SCO set up to take place */
+        bta_ag_co_audio_state(bta_ag_scb_to_idx(p_scb), p_scb->app_id, SCO_STATE_SETUP);
+#endif
+
+#if (BTM_SCO_HCI_INCLUDED == TRUE )
+#if (BTM_WBS_INCLUDED == TRUE)
+        if (esco_codec == BTA_AG_CODEC_MSBC)
+            pcm_sample_rate = BTA_DM_SCO_SAMP_RATE_16K;
+        else
+#endif
+            pcm_sample_rate = BTA_DM_SCO_SAMP_RATE_8K;
+
+        sco_route = bta_dm_sco_co_init(pcm_sample_rate, pcm_sample_rate, &codec_info, p_scb->app_id);
+#endif
+
+
+#if (BTM_SCO_HCI_INCLUDED == TRUE )
+        /* initialize SCO setup, no voice setting for AG, data rate <==> sample rate */
+        BTM_ConfigScoPath(sco_route, bta_ag_sco_read_cback, NULL, TRUE);
+#endif
+        bta_ag_cb.sco.cur_idx = p_scb->sco_idx;
+    }
+    else
+        p_scb->retry_with_sco_only = FALSE;
+
+    p_bd_addr = p_scb->peer_addr;
+
+    status = BTM_CreateSco(p_bd_addr, is_orig, params.packet_types,
+                           &p_scb->sco_idx, bta_ag_sco_conn_cback,
+                           bta_ag_sco_disc_cback);
+    if (status == BTM_CMD_STARTED)
+    {
+        if (!is_orig)
+        {
+            BTM_RegForEScoEvts(p_scb->sco_idx, bta_ag_esco_connreq_cback);
+        }
+        else    /* Initiating the connection, set the current sco handle */
+        {
+            bta_ag_cb.sco.cur_idx = p_scb->sco_idx;
+        }
+    }
+
+    APPL_TRACE_API("ag create sco: orig %d, inx 0x%04x, status 0x%x, pkt types 0x%04x",
+                      is_orig, p_scb->sco_idx, status, params.packet_types);
+}
+
+#if (BTM_WBS_INCLUDED == TRUE )
+/*******************************************************************************
+**
+** Function         bta_ag_attempt_msbc_safe_settings
+**
+** Description    Checks if ESCO connection needs to be attempted using mSBC T1(safe) settings
+**
+**
+** Returns          TRUE if T1 settings has to be used, FALSE otherwise
+**
+*******************************************************************************/
+BOOLEAN bta_ag_attempt_msbc_safe_settings(tBTA_AG_SCB *p_scb)
+{
+    if (p_scb->svc_conn && p_scb->sco_codec == BTM_SCO_CODEC_MSBC &&
+        p_scb->codec_msbc_settings == BTA_AG_SCO_MSBC_SETTINGS_T1)
+        return TRUE;
+    else
+        return FALSE;
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_codec_negotiation_timer_cback
+**
+** Description
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_ag_codec_negotiation_timer_cback(void *data)
+{
+    tBTA_AG_SCB *p_scb = (tBTA_AG_SCB *)data;
+
+    /* Announce that codec negotiation failed. */
+    bta_ag_sco_codec_nego(p_scb, FALSE);
+
+    /* call app callback */
+    bta_ag_cback_sco(p_scb, BTA_AG_AUDIO_CLOSE_EVT);
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_codec_negotiate
+**
+** Description      Initiate codec negotiation by sending AT command.
+**                  If not necessary, skip negotiation.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_ag_codec_negotiate(tBTA_AG_SCB *p_scb)
+{
+    bta_ag_cb.sco.p_curr_scb = p_scb;
+
+    if ((p_scb->codec_updated || p_scb->codec_fallback ||
+        bta_ag_attempt_msbc_safe_settings(p_scb)) &&
+       (p_scb->peer_features & BTA_AG_PEER_FEAT_CODEC))
+    {
+        /* Change the power mode to Active until sco open is completed. */
+        bta_sys_busy(BTA_ID_AG, p_scb->app_id, p_scb->peer_addr);
+
+        /* Send +BCS to the peer */
+        bta_ag_send_bcs(p_scb, NULL);
+
+        /* Start timer to handle timeout */
+        alarm_set_on_queue(p_scb->codec_negotiation_timer,
+                           BTA_AG_CODEC_NEGOTIATION_TIMEOUT_MS,
+                           bta_ag_codec_negotiation_timer_cback,
+                           p_scb,
+                           btu_bta_alarm_queue);
+    }
+    else
+    {
+        /* use same codec type as previous SCO connection, skip codec negotiation */
+        APPL_TRACE_DEBUG("use same codec type as previous SCO connection,skip codec negotiation");
+        bta_ag_sco_codec_nego(p_scb, TRUE);
+    }
+}
+#endif /* (BTM_WBS_INCLUDED == TRUE ) */
+
+/*******************************************************************************
+**
+** Function         bta_ag_sco_event
+**
+** Description
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_ag_sco_event(tBTA_AG_SCB *p_scb, UINT8 event)
+{
+    tBTA_AG_SCO_CB *p_sco = &bta_ag_cb.sco;
+#if (BTM_WBS_INCLUDED == TRUE )
+    tBTA_AG_SCB *p_cn_scb = NULL;   /* For codec negotiation */
+#endif
+#if (BTM_SCO_HCI_INCLUDED == TRUE )
+    BT_HDR  *p_buf;
+#endif
+#if BTA_AG_SCO_DEBUG == TRUE
+    UINT8   in_state = p_sco->state;
+
+    APPL_TRACE_EVENT("BTA ag sco evt (hdl 0x%04x): State %d (%s), Event %d (%s)",
+                        p_scb->sco_idx,
+                        p_sco->state, bta_ag_sco_state_str(p_sco->state),
+                        event, bta_ag_sco_evt_str(event));
+#else
+    APPL_TRACE_EVENT("BTA ag sco evt (hdl 0x%04x): State %d, Event %d",
+                      p_scb->sco_idx, p_sco->state, event);
+#endif
+
+#if (BTM_SCO_HCI_INCLUDED == TRUE )
+    if (event == BTA_AG_SCO_CI_DATA_E)
+    {
+        while (TRUE)
+        {
+            bta_dm_sco_co_out_data(&p_buf);
+            if (p_buf)
+            {
+                if (p_sco->state == BTA_AG_SCO_OPEN_ST)
+                    BTM_WriteScoData(p_sco->p_curr_scb->sco_idx, p_buf);
+                else
+                    osi_free(p_buf);
+            }
+            else
+                break;
+        }
+
+        return;
+    }
+#endif
+
+    switch (p_sco->state)
+    {
+        case BTA_AG_SCO_SHUTDOWN_ST:
+            switch (event)
+            {
+                case BTA_AG_SCO_LISTEN_E:
+                    /* create sco listen connection */
+                    bta_ag_create_sco(p_scb, FALSE);
+                    p_sco->state = BTA_AG_SCO_LISTEN_ST;
+                    break;
+
+                default:
+                    APPL_TRACE_WARNING("BTA_AG_SCO_SHUTDOWN_ST: Ignoring event %d", event);
+                    break;
+            }
+            break;
+
+        case BTA_AG_SCO_LISTEN_ST:
+            switch (event)
+            {
+                case BTA_AG_SCO_LISTEN_E:
+                    /* create sco listen connection (Additional channel) */
+                    bta_ag_create_sco(p_scb, FALSE);
+                    break;
+
+                case BTA_AG_SCO_OPEN_E:
+                    /* remove listening connection */
+                    bta_ag_remove_sco(p_scb, FALSE);
+
+#if (BTM_WBS_INCLUDED == TRUE )
+                    /* start codec negotiation */
+                    p_sco->state = BTA_AG_SCO_CODEC_ST;
+                    p_cn_scb = p_scb;
+#else
+                    /* create sco connection to peer */
+                    bta_ag_create_sco(p_scb, TRUE);
+                    p_sco->state = BTA_AG_SCO_OPENING_ST;
+#endif
+                    break;
+
+                case BTA_AG_SCO_SHUTDOWN_E:
+                    /* remove listening connection */
+                    bta_ag_remove_sco(p_scb, FALSE);
+
+                    if (p_scb == p_sco->p_curr_scb)
+                        p_sco->p_curr_scb = NULL;
+
+                    /* If last SCO instance then finish shutting down */
+                    if (!bta_ag_other_scb_open(p_scb))
+                    {
+                        p_sco->state = BTA_AG_SCO_SHUTDOWN_ST;
+                    }
+                    break;
+
+                case BTA_AG_SCO_CLOSE_E:
+                    /* remove listening connection */
+                    /* Ignore the event. We need to keep listening SCO for the active SLC */
+                    APPL_TRACE_WARNING("BTA_AG_SCO_LISTEN_ST: Ignoring event %d", event);
+                    break;
+
+                case BTA_AG_SCO_CONN_CLOSE_E:
+                    /* sco failed; create sco listen connection */
+                    bta_ag_create_sco(p_scb, FALSE);
+                    p_sco->state = BTA_AG_SCO_LISTEN_ST;
+                    break;
+
+                default:
+                    APPL_TRACE_WARNING("BTA_AG_SCO_LISTEN_ST: Ignoring event %d", event);
+                    break;
+            }
+            break;
+
+#if (BTM_WBS_INCLUDED == TRUE )
+        case BTA_AG_SCO_CODEC_ST:
+            switch (event)
+            {
+                case BTA_AG_SCO_LISTEN_E:
+                    /* create sco listen connection (Additional channel) */
+                    bta_ag_create_sco(p_scb, FALSE);
+                    break;
+
+                case BTA_AG_SCO_CN_DONE_E:
+                    /* create sco connection to peer */
+                    bta_ag_create_sco(p_scb, TRUE);
+                    p_sco->state = BTA_AG_SCO_OPENING_ST;
+                    break;
+
+                case BTA_AG_SCO_XFER_E:
+                    /* save xfer scb */
+                    p_sco->p_xfer_scb = p_scb;
+                    p_sco->state = BTA_AG_SCO_CLOSE_XFER_ST;
+                    break;
+
+                case BTA_AG_SCO_SHUTDOWN_E:
+                    /* remove listening connection */
+                    bta_ag_remove_sco(p_scb, FALSE);
+
+                    if (p_scb == p_sco->p_curr_scb)
+                        p_sco->p_curr_scb = NULL;
+
+                    /* If last SCO instance then finish shutting down */
+                    if (!bta_ag_other_scb_open(p_scb))
+                    {
+                        p_sco->state = BTA_AG_SCO_SHUTDOWN_ST;
+                    }
+                    break;
+
+                case BTA_AG_SCO_CLOSE_E:
+                    /* sco open is not started yet. just go back to listening */
+                    p_sco->state = BTA_AG_SCO_LISTEN_ST;
+                    break;
+
+                case BTA_AG_SCO_CONN_CLOSE_E:
+                    /* sco failed; create sco listen connection */
+                    bta_ag_create_sco(p_scb, FALSE);
+                    p_sco->state = BTA_AG_SCO_LISTEN_ST;
+                    break;
+
+                default:
+                    APPL_TRACE_WARNING("BTA_AG_SCO_CODEC_ST: Ignoring event %d", event);
+                    break;
+            }
+            break;
+#endif
+
+        case BTA_AG_SCO_OPENING_ST:
+            switch (event)
+            {
+                case BTA_AG_SCO_LISTEN_E:
+                    /* second headset has now joined */
+                    /* create sco listen connection (Additional channel) */
+                    if (p_scb != p_sco->p_curr_scb)
+                    {
+                        bta_ag_create_sco(p_scb, FALSE);
+                    }
+                    break;
+
+#if (BTM_WBS_INCLUDED == TRUE)
+                case BTA_AG_SCO_REOPEN_E:
+                    /* start codec negotiation */
+                    p_sco->state = BTA_AG_SCO_CODEC_ST;
+                    p_cn_scb = p_scb;
+                    break;
+#endif
+
+                case BTA_AG_SCO_XFER_E:
+                    /* save xfer scb */
+                    p_sco->p_xfer_scb = p_scb;
+                    p_sco->state = BTA_AG_SCO_CLOSE_XFER_ST;
+                    break;
+
+                case BTA_AG_SCO_CLOSE_E:
+                    p_sco->state = BTA_AG_SCO_OPEN_CL_ST;
+                    break;
+
+                case BTA_AG_SCO_SHUTDOWN_E:
+                    /* If not opening scb, just close it */
+                    if (p_scb != p_sco->p_curr_scb)
+                    {
+                        /* remove listening connection */
+                        bta_ag_remove_sco(p_scb, FALSE);
+                    }
+                    else
+                        p_sco->state = BTA_AG_SCO_SHUTTING_ST;
+
+                    break;
+
+                case BTA_AG_SCO_CONN_OPEN_E:
+                    p_sco->state = BTA_AG_SCO_OPEN_ST;
+                    break;
+
+                case BTA_AG_SCO_CONN_CLOSE_E:
+                    /* sco failed; create sco listen connection */
+                    bta_ag_create_sco(p_scb, FALSE);
+                    p_sco->state = BTA_AG_SCO_LISTEN_ST;
+                    break;
+
+                default:
+                    APPL_TRACE_WARNING("BTA_AG_SCO_OPENING_ST: Ignoring event %d", event);
+                    break;
+            }
+            break;
+
+        case BTA_AG_SCO_OPEN_CL_ST:
+            switch (event)
+            {
+                case BTA_AG_SCO_XFER_E:
+                    /* save xfer scb */
+                    p_sco->p_xfer_scb = p_scb;
+
+                    p_sco->state = BTA_AG_SCO_CLOSE_XFER_ST;
+                    break;
+
+                case BTA_AG_SCO_OPEN_E:
+                    p_sco->state = BTA_AG_SCO_OPENING_ST;
+                    break;
+
+                case BTA_AG_SCO_SHUTDOWN_E:
+                    /* If not opening scb, just close it */
+                    if (p_scb != p_sco->p_curr_scb)
+                    {
+                        /* remove listening connection */
+                        bta_ag_remove_sco(p_scb, FALSE);
+                    }
+                    else
+                        p_sco->state = BTA_AG_SCO_SHUTTING_ST;
+
+                    break;
+
+                case BTA_AG_SCO_CONN_OPEN_E:
+                    /* close sco connection */
+                    bta_ag_remove_sco(p_scb, TRUE);
+
+                    p_sco->state = BTA_AG_SCO_CLOSING_ST;
+                    break;
+
+                case BTA_AG_SCO_CONN_CLOSE_E:
+                    /* sco failed; create sco listen connection */
+
+                    p_sco->state = BTA_AG_SCO_LISTEN_ST;
+                    break;
+
+                default:
+                    APPL_TRACE_WARNING("BTA_AG_SCO_OPEN_CL_ST: Ignoring event %d", event);
+                    break;
+            }
+            break;
+
+        case BTA_AG_SCO_OPEN_XFER_ST:
+            switch (event)
+            {
+                case BTA_AG_SCO_CLOSE_E:
+                    /* close sco connection */
+                    bta_ag_remove_sco(p_scb, TRUE);
+
+                    p_sco->state = BTA_AG_SCO_CLOSING_ST;
+                    break;
+
+                case BTA_AG_SCO_SHUTDOWN_E:
+                    /* remove all connection */
+                    bta_ag_remove_sco(p_scb, FALSE);
+                    p_sco->state = BTA_AG_SCO_SHUTTING_ST;
+
+                    break;
+
+                case BTA_AG_SCO_CONN_CLOSE_E:
+                    /* closed sco; place in listen mode and
+                       accept the transferred connection */
+                    bta_ag_create_sco(p_scb, FALSE);    /* Back into listen mode */
+
+                    /* Accept sco connection with xfer scb */
+                    bta_ag_sco_conn_rsp(p_sco->p_xfer_scb, &p_sco->conn_data);
+                    p_sco->state = BTA_AG_SCO_OPENING_ST;
+                    p_sco->p_curr_scb = p_sco->p_xfer_scb;
+                    p_sco->cur_idx = p_sco->p_xfer_scb->sco_idx;
+                    p_sco->p_xfer_scb = NULL;
+                     break;
+
+                default:
+                    APPL_TRACE_WARNING("BTA_AG_SCO_OPEN_XFER_ST: Ignoring event %d", event);
+                    break;
+            }
+            break;
+
+        case BTA_AG_SCO_OPEN_ST:
+            switch (event)
+            {
+                case BTA_AG_SCO_LISTEN_E:
+                    /* second headset has now joined */
+                    /* create sco listen connection (Additional channel) */
+                    if (p_scb != p_sco->p_curr_scb)
+                    {
+                        bta_ag_create_sco(p_scb, FALSE);
+                    }
+                    break;
+
+                case BTA_AG_SCO_XFER_E:
+                    /* close current sco connection */
+                    bta_ag_remove_sco(p_sco->p_curr_scb, TRUE);
+
+                    /* save xfer scb */
+                    p_sco->p_xfer_scb = p_scb;
+
+                    p_sco->state = BTA_AG_SCO_CLOSE_XFER_ST;
+                    break;
+
+                case BTA_AG_SCO_CLOSE_E:
+                    /* close sco connection if active */
+                    if (bta_ag_remove_sco(p_scb, TRUE))
+                    {
+                        p_sco->state = BTA_AG_SCO_CLOSING_ST;
+                    }
+                    break;
+
+                case BTA_AG_SCO_SHUTDOWN_E:
+                    /* remove all listening connections */
+                    bta_ag_remove_sco(p_scb, FALSE);
+
+                    /* If SCO was active on this scb, close it */
+                    if (p_scb == p_sco->p_curr_scb)
+                    {
+                        p_sco->state = BTA_AG_SCO_SHUTTING_ST;
+                    }
+                    break;
+
+                case BTA_AG_SCO_CONN_CLOSE_E:
+                    /* peer closed sco; create sco listen connection */
+                    bta_ag_create_sco(p_scb, FALSE);
+                    p_sco->state = BTA_AG_SCO_LISTEN_ST;
+                    break;
+
+                default:
+                    APPL_TRACE_WARNING("BTA_AG_SCO_OPEN_ST: Ignoring event %d", event);
+                    break;
+            }
+            break;
+
+        case BTA_AG_SCO_CLOSING_ST:
+            switch (event)
+            {
+                case BTA_AG_SCO_LISTEN_E:
+                    /* create sco listen connection (Additional channel) */
+                    if (p_scb != p_sco->p_curr_scb)
+                    {
+                        bta_ag_create_sco(p_scb, FALSE);
+                    }
+                    break;
+
+                case BTA_AG_SCO_OPEN_E:
+                    p_sco->state = BTA_AG_SCO_CLOSE_OP_ST;
+                    break;
+
+                case BTA_AG_SCO_XFER_E:
+                    /* save xfer scb */
+                    p_sco->p_xfer_scb = p_scb;
+
+                    p_sco->state = BTA_AG_SCO_CLOSE_XFER_ST;
+                    break;
+
+                case BTA_AG_SCO_SHUTDOWN_E:
+                    /* If not closing scb, just close it */
+                    if (p_scb != p_sco->p_curr_scb)
+                    {
+                        /* remove listening connection */
+                        bta_ag_remove_sco(p_scb, FALSE);
+                    }
+                    else
+                        p_sco->state = BTA_AG_SCO_SHUTTING_ST;
+
+                    break;
+
+                case BTA_AG_SCO_CONN_CLOSE_E:
+                    /* peer closed sco; create sco listen connection */
+                    bta_ag_create_sco(p_scb, FALSE);
+
+                    p_sco->state = BTA_AG_SCO_LISTEN_ST;
+                    break;
+
+                default:
+                    APPL_TRACE_WARNING("BTA_AG_SCO_CLOSING_ST: Ignoring event %d", event);
+                    break;
+            }
+            break;
+
+        case BTA_AG_SCO_CLOSE_OP_ST:
+            switch (event)
+            {
+                case BTA_AG_SCO_CLOSE_E:
+                    p_sco->state = BTA_AG_SCO_CLOSING_ST;
+                    break;
+
+                case BTA_AG_SCO_SHUTDOWN_E:
+                    p_sco->state = BTA_AG_SCO_SHUTTING_ST;
+                    break;
+
+                case BTA_AG_SCO_CONN_CLOSE_E:
+#if (BTM_WBS_INCLUDED == TRUE )
+                    /* start codec negotiation */
+                    p_sco->state = BTA_AG_SCO_CODEC_ST;
+                    p_cn_scb = p_scb;
+#else
+                    /* open sco connection */
+                    bta_ag_create_sco(p_scb, TRUE);
+                    p_sco->state = BTA_AG_SCO_OPENING_ST;
+#endif
+                    break;
+
+                case BTA_AG_SCO_LISTEN_E:
+                    /* create sco listen connection (Additional channel) */
+                    if (p_scb != p_sco->p_curr_scb)
+                    {
+                        bta_ag_create_sco(p_scb, FALSE);
+                    }
+                    break;
+
+                default:
+                    APPL_TRACE_WARNING("BTA_AG_SCO_CLOSE_OP_ST: Ignoring event %d", event);
+                    break;
+            }
+            break;
+
+        case BTA_AG_SCO_CLOSE_XFER_ST:
+            switch (event)
+            {
+                case BTA_AG_SCO_CONN_OPEN_E:
+                    /* close sco connection so headset can be transferred
+                       Probably entered this state from "opening state" */
+                    bta_ag_remove_sco(p_scb, TRUE);
+                    break;
+
+                case BTA_AG_SCO_CLOSE_E:
+                    /* clear xfer scb */
+                    p_sco->p_xfer_scb = NULL;
+
+                    p_sco->state = BTA_AG_SCO_CLOSING_ST;
+                    break;
+
+                case BTA_AG_SCO_SHUTDOWN_E:
+                    /* clear xfer scb */
+                    p_sco->p_xfer_scb = NULL;
+
+                    p_sco->state = BTA_AG_SCO_SHUTTING_ST;
+                    break;
+
+                case BTA_AG_SCO_CONN_CLOSE_E:
+                    /* closed sco; place old sco in listen mode,
+                       take current sco out of listen, and
+                       create originating sco for current */
+                    bta_ag_create_sco(p_scb, FALSE);
+                    bta_ag_remove_sco(p_sco->p_xfer_scb, FALSE);
+
+#if (BTM_WBS_INCLUDED == TRUE )
+                    /* start codec negotiation */
+                    p_sco->state = BTA_AG_SCO_CODEC_ST;
+                    p_cn_scb = p_sco->p_xfer_scb;
+                    p_sco->p_xfer_scb = NULL;
+#else
+                    /* create sco connection to peer */
+                    bta_ag_create_sco(p_sco->p_xfer_scb, TRUE);
+                    p_sco->p_xfer_scb = NULL;
+                    p_sco->state = BTA_AG_SCO_OPENING_ST;
+#endif
+                    break;
+
+                default:
+                    APPL_TRACE_WARNING("BTA_AG_SCO_CLOSE_XFER_ST: Ignoring event %d", event);
+                    break;
+            }
+            break;
+
+        case BTA_AG_SCO_SHUTTING_ST:
+            switch (event)
+            {
+                case BTA_AG_SCO_CONN_OPEN_E:
+                    /* close sco connection; wait for conn close event */
+                    bta_ag_remove_sco(p_scb, TRUE);
+                    break;
+
+                case BTA_AG_SCO_CONN_CLOSE_E:
+                    /* If last SCO instance then finish shutting down */
+                    if (!bta_ag_other_scb_open(p_scb))
+                    {
+                        p_sco->state = BTA_AG_SCO_SHUTDOWN_ST;
+                    }
+                    else    /* Other instance is still listening */
+                    {
+                        p_sco->state = BTA_AG_SCO_LISTEN_ST;
+                    }
+
+                    /* If SCO closed for other HS which is not being disconnected,
+                       then create listen sco connection for it as scb still open */
+                    if (bta_ag_scb_open(p_scb))
+                    {
+                        bta_ag_create_sco(p_scb, FALSE);
+                        p_sco->state = BTA_AG_SCO_LISTEN_ST;
+                    }
+
+                    if (p_scb == p_sco->p_curr_scb)
+                    {
+                        p_sco->p_curr_scb->sco_idx = BTM_INVALID_SCO_INDEX;
+                        p_sco->p_curr_scb = NULL;
+                    }
+                    break;
+
+                case BTA_AG_SCO_LISTEN_E:
+                    /* create sco listen connection (Additional channel) */
+                    if (p_scb != p_sco->p_curr_scb)
+                    {
+                        bta_ag_create_sco(p_scb, FALSE);
+                    }
+                    break;
+
+                case BTA_AG_SCO_SHUTDOWN_E:
+                    if (!bta_ag_other_scb_open(p_scb))
+                    {
+                        p_sco->state = BTA_AG_SCO_SHUTDOWN_ST;
+                    }
+                    else    /* Other instance is still listening */
+                    {
+                        p_sco->state = BTA_AG_SCO_LISTEN_ST;
+                    }
+
+                    if (p_scb == p_sco->p_curr_scb)
+                    {
+                        p_sco->p_curr_scb->sco_idx = BTM_INVALID_SCO_INDEX;
+                        p_sco->p_curr_scb = NULL;
+                    }
+                    break;
+
+                default:
+                    APPL_TRACE_WARNING("BTA_AG_SCO_SHUTTING_ST: Ignoring event %d", event);
+                    break;
+            }
+            break;
+
+        default:
+            break;
+    }
+#if BTA_AG_SCO_DEBUG == TRUE
+    if (p_sco->state != in_state)
+    {
+        APPL_TRACE_EVENT("BTA AG SCO State Change: [%s] -> [%s] after Event [%s]",
+                      bta_ag_sco_state_str(in_state),
+                      bta_ag_sco_state_str(p_sco->state),
+                      bta_ag_sco_evt_str(event));
+    }
+#endif
+
+#if (BTM_WBS_INCLUDED == TRUE )
+    if (p_cn_scb)
+    {
+        bta_ag_codec_negotiate(p_cn_scb);
+    }
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_sco_is_open
+**
+** Description      Check if sco is open for this scb.
+**
+**
+** Returns          TRUE if sco open for this scb, FALSE otherwise.
+**
+*******************************************************************************/
+BOOLEAN bta_ag_sco_is_open(tBTA_AG_SCB *p_scb)
+{
+    return ((bta_ag_cb.sco.state == BTA_AG_SCO_OPEN_ST) &&
+            (bta_ag_cb.sco.p_curr_scb == p_scb));
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_sco_is_opening
+**
+** Description      Check if sco is in Opening state.
+**
+**
+** Returns          TRUE if sco is in Opening state for this scb, FALSE otherwise.
+**
+*******************************************************************************/
+BOOLEAN bta_ag_sco_is_opening(tBTA_AG_SCB *p_scb)
+{
+#if (BTM_WBS_INCLUDED == TRUE )
+    return (((bta_ag_cb.sco.state == BTA_AG_SCO_OPENING_ST) ||
+            (bta_ag_cb.sco.state == BTA_AG_SCO_OPENING_ST)) &&
+            (bta_ag_cb.sco.p_curr_scb == p_scb));
+#else
+    return ((bta_ag_cb.sco.state == BTA_AG_SCO_OPENING_ST) &&
+            (bta_ag_cb.sco.p_curr_scb == p_scb));
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_sco_listen
+**
+** Description
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_ag_sco_listen(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data)
+{
+    UNUSED(p_data);
+    bta_ag_sco_event(p_scb, BTA_AG_SCO_LISTEN_E);
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_sco_open
+**
+** Description
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_ag_sco_open(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data)
+{
+    UINT8 event;
+    UNUSED(p_data);
+
+    /* if another scb using sco, this is a transfer */
+    if (bta_ag_cb.sco.p_curr_scb != NULL && bta_ag_cb.sco.p_curr_scb != p_scb)
+    {
+        event = BTA_AG_SCO_XFER_E;
+    }
+    /* else it is an open */
+    else
+    {
+        event = BTA_AG_SCO_OPEN_E;
+    }
+
+    bta_ag_sco_event(p_scb, event);
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_sco_close
+**
+** Description
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_ag_sco_close(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data)
+{
+    UNUSED(p_data);
+
+    /* if scb is in use */
+#if (BTM_WBS_INCLUDED == TRUE )
+    /* sco_idx is not allocated in SCO_CODEC_ST, we still need to move to listening state. */
+    if ((p_scb->sco_idx != BTM_INVALID_SCO_INDEX) || (bta_ag_cb.sco.state == BTA_AG_SCO_CODEC_ST))
+#else
+    if (p_scb->sco_idx != BTM_INVALID_SCO_INDEX)
+#endif
+    {
+        APPL_TRACE_DEBUG("bta_ag_sco_close: sco_inx = %d", p_scb->sco_idx);
+        bta_ag_sco_event(p_scb, BTA_AG_SCO_CLOSE_E);
+    }
+}
+
+#if (BTM_WBS_INCLUDED == TRUE )
+
+/*******************************************************************************
+**
+** Function         bta_ag_sco_codec_nego
+**
+** Description
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_ag_sco_codec_nego(tBTA_AG_SCB *p_scb, BOOLEAN result)
+{
+    if(result == TRUE)
+    {
+        /* Subsequent sco connection will skip codec negotiation */
+        p_scb->codec_updated = FALSE;
+
+        bta_ag_sco_event(p_scb, BTA_AG_SCO_CN_DONE_E);
+    }
+    else    /* codec negotiation failed */
+        bta_ag_sco_event(p_scb, BTA_AG_SCO_CLOSE_E);
+}
+#endif
+
+/*******************************************************************************
+**
+** Function         bta_ag_sco_shutdown
+**
+** Description
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_ag_sco_shutdown(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data)
+{
+    UNUSED(p_data);
+
+    bta_ag_sco_event(p_scb, BTA_AG_SCO_SHUTDOWN_E);
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_sco_conn_open
+**
+** Description
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_ag_sco_conn_open(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data)
+{
+    UNUSED(p_data);
+
+    bta_ag_sco_event(p_scb, BTA_AG_SCO_CONN_OPEN_E);
+
+    bta_sys_sco_open(BTA_ID_AG, p_scb->app_id, p_scb->peer_addr);
+
+#if (BTM_WBS_INCLUDED == TRUE)
+    bta_ag_co_audio_state(bta_ag_scb_to_idx(p_scb), p_scb->app_id, SCO_STATE_ON,
+                          p_scb->inuse_codec);
+#else
+    bta_ag_co_audio_state(bta_ag_scb_to_idx(p_scb), p_scb->app_id, SCO_STATE_ON);
+#endif
+
+#if (BTM_SCO_HCI_INCLUDED == TRUE )
+    /* open SCO codec if SCO is routed through transport */
+    bta_dm_sco_co_open(bta_ag_scb_to_idx(p_scb), BTA_SCO_OUT_PKT_SIZE, BTA_AG_CI_SCO_DATA_EVT);
+#endif
+
+    /* call app callback */
+    bta_ag_cback_sco(p_scb, BTA_AG_AUDIO_OPEN_EVT);
+
+    p_scb->retry_with_sco_only = FALSE;
+#if (BTM_WBS_INCLUDED == TRUE)
+    /* reset to mSBC T2 settings as the preferred */
+    p_scb->codec_msbc_settings = BTA_AG_SCO_MSBC_SETTINGS_T2;
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_sco_conn_close
+**
+** Description
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_ag_sco_conn_close(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data)
+{
+    UINT16 handle = bta_ag_scb_to_idx(p_scb);
+    UNUSED(p_data);
+
+    /* clear current scb */
+    bta_ag_cb.sco.p_curr_scb = NULL;
+    p_scb->sco_idx = BTM_INVALID_SCO_INDEX;
+
+#if (BTM_WBS_INCLUDED == TRUE)
+    /* codec_fallback is set when AG is initiator and connection failed for mSBC. */
+    /* OR if codec is msbc and T2 settings failed, then retry Safe T1 settings */
+    if ((p_scb->codec_fallback && p_scb->svc_conn) ||
+         bta_ag_attempt_msbc_safe_settings(p_scb))
+    {
+        bta_ag_sco_event(p_scb, BTA_AG_SCO_REOPEN_E);
+    }
+    else if (p_scb->retry_with_sco_only && p_scb->svc_conn)
+    {
+        /* retry_with_sco_only is set when AG is initiator and connection failed for eSCO */
+        bta_ag_create_sco(p_scb, TRUE);
+    }
+#else
+    /* retry_with_sco_only, will be set only when AG is initiator
+    ** and AG is first trying to establish an eSCO connection */
+    if (p_scb->retry_with_sco_only && p_scb->svc_conn)
+    {
+        bta_ag_create_sco(p_scb, TRUE);
+    }
+#endif
+    else
+    {
+        sco_state_t sco_state = bta_ag_cb.sco.p_xfer_scb ? SCO_STATE_OFF_TRANSFER : SCO_STATE_OFF;
+#if (BTM_WBS_INCLUDED == TRUE)
+        /* Indicate if the closing of audio is because of transfer */
+        bta_ag_co_audio_state(handle, p_scb->app_id, sco_state, p_scb->inuse_codec);
+#else
+        /* Indicate if the closing of audio is because of transfer */
+        bta_ag_co_audio_state(handle, p_scb->app_id, sco_state);
+#endif
+        bta_ag_sco_event(p_scb, BTA_AG_SCO_CONN_CLOSE_E);
+
+        bta_sys_sco_close(BTA_ID_AG, p_scb->app_id, p_scb->peer_addr);
+
+        /* if av got suspended by this call, let it resume. */
+        /* In case call stays alive regardless of sco, av should not be affected. */
+        if(((p_scb->call_ind == BTA_AG_CALL_INACTIVE) && (p_scb->callsetup_ind == BTA_AG_CALLSETUP_NONE))
+            || (p_scb->post_sco == BTA_AG_POST_SCO_CALL_END))
+        {
+            bta_sys_sco_unuse(BTA_ID_AG, p_scb->app_id, p_scb->peer_addr);
+        }
+
+        /* call app callback */
+        bta_ag_cback_sco(p_scb, BTA_AG_AUDIO_CLOSE_EVT);
+#if (BTM_WBS_INCLUDED == TRUE)
+        p_scb->codec_msbc_settings = BTA_AG_SCO_MSBC_SETTINGS_T2;
+#endif
+    }
+    p_scb->retry_with_sco_only = FALSE;
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_sco_conn_rsp
+**
+** Description      Process the SCO connection request
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_ag_sco_conn_rsp(tBTA_AG_SCB *p_scb, tBTM_ESCO_CONN_REQ_EVT_DATA *p_data)
+{
+    tBTM_ESCO_PARAMS    resp;
+    UINT8               hci_status = HCI_SUCCESS;
+#if (BTM_SCO_HCI_INCLUDED == TRUE )
+    tBTA_CODEC_INFO     codec_info = {BTA_SCO_CODEC_PCM};
+    UINT32              pcm_sample_rate;
+#endif
+
+    if (bta_ag_cb.sco.state == BTA_AG_SCO_LISTEN_ST     ||
+        bta_ag_cb.sco.state == BTA_AG_SCO_CLOSE_XFER_ST ||
+        bta_ag_cb.sco.state == BTA_AG_SCO_OPEN_XFER_ST)
+    {
+        /* If script overrided sco parameter by BTA_CMD_SET_ESCO_PARAM */
+        if (bta_ag_cb.sco.param_updated)
+        {
+            resp = bta_ag_cb.sco.params;
+        }
+        else
+        {
+            resp.rx_bw = BTM_64KBITS_RATE;
+            resp.tx_bw = BTM_64KBITS_RATE;
+            resp.max_latency = 10;
+            resp.voice_contfmt = 0x60;
+            resp.retrans_effort = BTM_ESCO_RETRANS_POWER;
+
+            if (p_data->link_type == BTM_LINK_TYPE_SCO)
+            {
+                resp.packet_types = (BTM_SCO_LINK_ONLY_MASK          |
+                                     BTM_SCO_PKT_TYPES_MASK_NO_2_EV3 |
+                                     BTM_SCO_PKT_TYPES_MASK_NO_3_EV3 |
+                                     BTM_SCO_PKT_TYPES_MASK_NO_2_EV5 |
+                                     BTM_SCO_PKT_TYPES_MASK_NO_3_EV5);
+            }
+            else    /* Allow controller to use all types available except 5-slot EDR */
+            {
+                resp.packet_types = (BTM_SCO_LINK_ALL_PKT_MASK |
+                                     BTM_SCO_PKT_TYPES_MASK_NO_2_EV5 |
+                                     BTM_SCO_PKT_TYPES_MASK_NO_3_EV5);
+            }
+        }
+
+        /* tell sys to stop av if any */
+        bta_sys_sco_use(BTA_ID_AG, p_scb->app_id, p_scb->peer_addr);
+
+#if (BTM_WBS_INCLUDED == FALSE )
+        /* Allow any platform specific pre-SCO set up to take place */
+        bta_ag_co_audio_state(bta_ag_scb_to_idx(p_scb), p_scb->app_id, SCO_STATE_SETUP);
+#else
+        /* When HS initiated SCO, it cannot be WBS. */
+        /* Allow any platform specific pre-SCO set up to take place */
+        bta_ag_co_audio_state(bta_ag_scb_to_idx(p_scb), p_scb->app_id, SCO_STATE_SETUP,
+                              BTA_AG_CODEC_CVSD);
+#endif
+
+#if (BTM_SCO_HCI_INCLUDED == TRUE )
+        pcm_sample_rate = BTA_DM_SCO_SAMP_RATE_8K;
+
+        /* initialize SCO setup, no voice setting for AG, data rate <==> sample rate */
+        BTM_ConfigScoPath(bta_dm_sco_co_init(pcm_sample_rate, pcm_sample_rate, &codec_info, p_scb->app_id),
+            bta_ag_sco_read_cback, NULL, TRUE);
+#endif
+    }
+    else
+        hci_status = HCI_ERR_HOST_REJECT_DEVICE;
+
+#if (BTM_WBS_INCLUDED == TRUE )
+    /* If SCO open was initiated from HS, it must be CVSD */
+    p_scb->inuse_codec = BTA_AG_CODEC_NONE;
+#endif
+
+    BTM_EScoConnRsp(p_data->sco_inx, hci_status, &resp);
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_ci_sco_data
+**
+** Description      Process the SCO data ready callin event
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_ag_ci_sco_data(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data)
+{
+    UNUSED(p_scb);
+    UNUSED(p_data);
+
+#if (BTM_SCO_HCI_INCLUDED == TRUE )
+    bta_ag_sco_event(p_scb, BTA_AG_SCO_CI_DATA_E);
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_set_esco_param
+**
+** Description      Update esco parameters from script wrapper.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_ag_set_esco_param(BOOLEAN set_reset, tBTM_ESCO_PARAMS *param)
+{
+    if(set_reset == FALSE)    /* reset the parameters to default */
+    {
+        bta_ag_cb.sco.param_updated = FALSE;
+        APPL_TRACE_DEBUG("bta_ag_set_esco_param : Resetting ESCO parameters to default");
+    }
+    else
+    {
+        bta_ag_cb.sco.param_updated = TRUE;
+        bta_ag_cb.sco.params = *param;
+        APPL_TRACE_DEBUG("bta_ag_set_esco_param : Setting ESCO parameters");
+    }
+}
+
+/*******************************************************************************
+**  Debugging functions
+*******************************************************************************/
+
+#if BTA_AG_SCO_DEBUG == TRUE
+static char *bta_ag_sco_evt_str(UINT8 event)
+{
+    switch (event)
+    {
+    case BTA_AG_SCO_LISTEN_E:
+        return "Listen Request";
+    case BTA_AG_SCO_OPEN_E:
+        return "Open Request";
+    case BTA_AG_SCO_XFER_E:
+        return "Transfer Request";
+#if (BTM_WBS_INCLUDED == TRUE )
+    case BTA_AG_SCO_CN_DONE_E:
+        return "Codec Negotiation Done";
+    case BTA_AG_SCO_REOPEN_E:
+        return "Reopen Request";
+#endif
+    case BTA_AG_SCO_CLOSE_E:
+        return "Close Request";
+    case BTA_AG_SCO_SHUTDOWN_E:
+        return "Shutdown Request";
+    case BTA_AG_SCO_CONN_OPEN_E:
+        return "Opened";
+    case BTA_AG_SCO_CONN_CLOSE_E:
+        return "Closed";
+    case BTA_AG_SCO_CI_DATA_E  :
+        return "Sco Data";
+    default:
+        return "Unknown SCO Event";
+    }
+}
+
+static char *bta_ag_sco_state_str(UINT8 state)
+{
+    switch (state)
+    {
+    case BTA_AG_SCO_SHUTDOWN_ST:
+        return "Shutdown";
+    case BTA_AG_SCO_LISTEN_ST:
+        return "Listening";
+#if (BTM_WBS_INCLUDED == TRUE )
+    case BTA_AG_SCO_CODEC_ST:
+        return "Codec Negotiation";
+#endif
+    case BTA_AG_SCO_OPENING_ST:
+        return "Opening";
+    case BTA_AG_SCO_OPEN_CL_ST:
+        return "Open while closing";
+    case BTA_AG_SCO_OPEN_XFER_ST:
+        return "Opening while Transferring";
+    case BTA_AG_SCO_OPEN_ST:
+        return "Open";
+    case BTA_AG_SCO_CLOSING_ST:
+        return "Closing";
+    case BTA_AG_SCO_CLOSE_OP_ST:
+        return "Close while Opening";
+    case BTA_AG_SCO_CLOSE_XFER_ST:
+        return "Close while Transferring";
+    case BTA_AG_SCO_SHUTTING_ST:
+        return "Shutting Down";
+    default:
+        return "Unknown SCO State";
+    }
+}
+
+#endif
diff --git a/rtkbt/code/bt/bta/ag/bta_ag_sdp.c b/rtkbt/code/bt/bta/ag/bta_ag_sdp.c
new file mode 100755
index 0000000..cb5bd80
--- /dev/null
+++ b/rtkbt/code/bt/bta/ag/bta_ag_sdp.c
@@ -0,0 +1,493 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains the audio gateway functions performing SDP
+ *  operations.
+ *
+ ******************************************************************************/
+
+#include <string.h>
+#include "bta_api.h"
+#include "bta_sys.h"
+#include "bta_ag_api.h"
+#include "bta_ag_int.h"
+#include "sdp_api.h"
+#include "btm_api.h"
+#include "bt_common.h"
+#include "utl.h"
+
+/* Number of protocol elements in protocol element list. */
+#define BTA_AG_NUM_PROTO_ELEMS      2
+
+/* Number of elements in service class id list. */
+#define BTA_AG_NUM_SVC_ELEMS        2
+
+/* size of database for service discovery */
+#ifndef BTA_AG_DISC_BUF_SIZE
+#define BTA_AG_DISC_BUF_SIZE        BT_DEFAULT_BUFFER_SIZE
+#endif
+
+/* declare sdp callback functions */
+void bta_ag_sdp_cback_1(UINT16 status);
+void bta_ag_sdp_cback_2(UINT16 status);
+void bta_ag_sdp_cback_3(UINT16 status);
+
+/* SDP callback function table */
+typedef tSDP_DISC_CMPL_CB *tBTA_AG_SDP_CBACK;
+const tBTA_AG_SDP_CBACK bta_ag_sdp_cback_tbl[] =
+{
+    bta_ag_sdp_cback_1,
+    bta_ag_sdp_cback_2,
+    bta_ag_sdp_cback_3
+};
+
+/*******************************************************************************
+**
+** Function         bta_ag_sdp_cback
+**
+** Description      SDP callback function.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_ag_sdp_cback(UINT16 status, UINT8 idx)
+{
+    UINT16              event;
+    tBTA_AG_SCB         *p_scb;
+
+    APPL_TRACE_DEBUG("bta_ag_sdp_cback status:0x%x", status);
+
+    if ((p_scb = bta_ag_scb_by_idx(idx)) != NULL)
+    {
+        /* set event according to int/acp */
+        if (p_scb->role == BTA_AG_ACP)
+        {
+            event = BTA_AG_DISC_ACP_RES_EVT;
+        }
+        else
+        {
+            event = BTA_AG_DISC_INT_RES_EVT;
+        }
+
+        tBTA_AG_DISC_RESULT *p_buf =
+            (tBTA_AG_DISC_RESULT *)osi_malloc(sizeof(tBTA_AG_DISC_RESULT));
+        p_buf->hdr.event = event;
+        p_buf->hdr.layer_specific = idx;
+        p_buf->status = status;
+        bta_sys_sendmsg(p_buf);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_sdp_cback_1 to 3
+**
+** Description      SDP callback functions.  Since there is no way to
+**                  distinguish scb from the callback we need separate
+**                  callbacks for each scb.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_ag_sdp_cback_1(UINT16 status) {bta_ag_sdp_cback(status, 1);}
+void bta_ag_sdp_cback_2(UINT16 status) {bta_ag_sdp_cback(status, 2);}
+void bta_ag_sdp_cback_3(UINT16 status) {bta_ag_sdp_cback(status, 3);}
+
+/******************************************************************************
+**
+** Function         bta_ag_add_record
+**
+** Description      This function is called by a server application to add
+**                  HSP or HFP information to an SDP record.  Prior to
+**                  calling this function the application must call
+**                  SDP_CreateRecord() to create an SDP record.
+**
+** Returns          TRUE if function execution succeeded,
+**                  FALSE if function execution failed.
+**
+******************************************************************************/
+BOOLEAN bta_ag_add_record(UINT16 service_uuid, char *p_service_name, UINT8 scn,
+                          tBTA_AG_FEAT features, UINT32 sdp_handle)
+{
+    tSDP_PROTOCOL_ELEM  proto_elem_list[BTA_AG_NUM_PROTO_ELEMS];
+    UINT16              svc_class_id_list[BTA_AG_NUM_SVC_ELEMS];
+    UINT16              browse_list[] = {UUID_SERVCLASS_PUBLIC_BROWSE_GROUP};
+    UINT16              version;
+    UINT16              profile_uuid;
+    UINT8               network;
+    BOOLEAN             result = TRUE;
+    BOOLEAN             codec_supported = FALSE;
+    UINT8               buf[2];
+
+    APPL_TRACE_DEBUG("bta_ag_add_record uuid: %x", service_uuid);
+
+    memset( proto_elem_list, 0 , BTA_AG_NUM_PROTO_ELEMS*sizeof(tSDP_PROTOCOL_ELEM));
+
+    /* add the protocol element sequence */
+    proto_elem_list[0].protocol_uuid = UUID_PROTOCOL_L2CAP;
+    proto_elem_list[0].num_params = 0;
+    proto_elem_list[1].protocol_uuid = UUID_PROTOCOL_RFCOMM;
+    proto_elem_list[1].num_params = 1;
+    proto_elem_list[1].params[0] = scn;
+    result &= SDP_AddProtocolList(sdp_handle, BTA_AG_NUM_PROTO_ELEMS, proto_elem_list);
+
+    /* add service class id list */
+    svc_class_id_list[0] = service_uuid;
+    svc_class_id_list[1] = UUID_SERVCLASS_GENERIC_AUDIO;
+    result &= SDP_AddServiceClassIdList(sdp_handle, BTA_AG_NUM_SVC_ELEMS, svc_class_id_list);
+
+    /* add profile descriptor list */
+    if (service_uuid == UUID_SERVCLASS_AG_HANDSFREE)
+    {
+        profile_uuid = UUID_SERVCLASS_HF_HANDSFREE;
+        version = HFP_VERSION_1_6;
+    }
+    else
+    {
+        profile_uuid = UUID_SERVCLASS_HEADSET;
+        version = HSP_VERSION_1_2;
+    }
+    result &= SDP_AddProfileDescriptorList(sdp_handle, profile_uuid, version);
+
+    /* add service name */
+    if (p_service_name != NULL && p_service_name[0] != 0)
+    {
+        result &= SDP_AddAttribute(sdp_handle, ATTR_ID_SERVICE_NAME, TEXT_STR_DESC_TYPE,
+                    (UINT32)(strlen(p_service_name)+1), (UINT8 *) p_service_name);
+    }
+
+    /* add features and network */
+    if (service_uuid == UUID_SERVCLASS_AG_HANDSFREE)
+    {
+        network = (features & BTA_AG_FEAT_REJECT) ? 1 : 0;
+        result &= SDP_AddAttribute(sdp_handle, ATTR_ID_DATA_STORES_OR_NETWORK,
+                    UINT_DESC_TYPE, 1, &network);
+
+        if (features & BTA_AG_FEAT_CODEC)
+            codec_supported = TRUE;
+
+        features &= BTA_AG_SDP_FEAT_SPEC;
+
+        /* Codec bit position is different in SDP and in BRSF */
+        if (codec_supported)
+            features |= 0x0020;
+
+        UINT16_TO_BE_FIELD(buf, features);
+        result &= SDP_AddAttribute(sdp_handle, ATTR_ID_SUPPORTED_FEATURES, UINT_DESC_TYPE, 2, buf);
+    }
+
+    /* add browse group list */
+    result &= SDP_AddUuidSequence(sdp_handle, ATTR_ID_BROWSE_GROUP_LIST, 1, browse_list);
+
+    return result;
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_create_records
+**
+** Description      Create SDP records for registered services.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_ag_create_records(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data)
+{
+    int                 i;
+    tBTA_SERVICE_MASK   services;
+
+    services = p_scb->reg_services >> BTA_HSP_SERVICE_ID;
+    for (i = 0; i < BTA_AG_NUM_IDX && services != 0; i++, services >>= 1)
+    {
+        /* if service is set in mask */
+        if (services & 1)
+        {
+            /* add sdp record if not already registered */
+            if (bta_ag_cb.profile[i].sdp_handle == 0)
+            {
+                bta_ag_cb.profile[i].sdp_handle = SDP_CreateRecord();
+                bta_ag_cb.profile[i].scn = BTM_AllocateSCN();
+                bta_ag_add_record(bta_ag_uuid[i], p_data->api_register.p_name[i],
+                    bta_ag_cb.profile[i].scn, p_data->api_register.features,
+                    bta_ag_cb.profile[i].sdp_handle);
+                bta_sys_add_uuid(bta_ag_uuid[i]);
+            }
+        }
+    }
+
+    p_scb->hsp_version = HSP_VERSION_1_2;
+
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_del_records
+**
+** Description      Delete SDP records for any registered services.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_ag_del_records(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data)
+{
+    tBTA_AG_SCB         *p = &bta_ag_cb.scb[0];
+    tBTA_SERVICE_MASK   services;
+    tBTA_SERVICE_MASK   others = 0;
+    int                 i;
+    UNUSED(p_data);
+
+    /* get services of all other registered servers */
+    for (i = 0; i < BTA_AG_NUM_IDX; i++, p++)
+    {
+        if (p_scb == p)
+        {
+            continue;
+        }
+
+        if (p->in_use && p->dealloc == FALSE)
+        {
+            others |= p->reg_services;
+        }
+    }
+
+    others >>= BTA_HSP_SERVICE_ID;
+    services = p_scb->reg_services >> BTA_HSP_SERVICE_ID;
+    for (i = 0; i < BTA_AG_NUM_IDX && services != 0; i++, services >>= 1, others >>= 1)
+    {
+        /* if service registered for this scb and not registered for any other scb */
+        if (((services & 1) == 1) && ((others & 1) == 0))
+        {
+            APPL_TRACE_DEBUG("bta_ag_del_records %d", i);
+            if (bta_ag_cb.profile[i].sdp_handle != 0)
+            {
+                SDP_DeleteRecord(bta_ag_cb.profile[i].sdp_handle);
+                bta_ag_cb.profile[i].sdp_handle = 0;
+            }
+            BTM_FreeSCN(bta_ag_cb.profile[i].scn);
+            BTM_SecClrService(bta_ag_sec_id[i]);
+            bta_sys_remove_uuid(bta_ag_uuid[i]);
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_sdp_find_attr
+**
+** Description      Process SDP discovery results to find requested attributes
+**                  for requested service.
+**
+**
+** Returns          TRUE if results found, FALSE otherwise.
+**
+*******************************************************************************/
+BOOLEAN bta_ag_sdp_find_attr(tBTA_AG_SCB *p_scb, tBTA_SERVICE_MASK service)
+{
+    tSDP_DISC_REC       *p_rec = NULL;
+    tSDP_DISC_ATTR      *p_attr;
+    tSDP_PROTOCOL_ELEM  pe;
+    UINT16              uuid;
+    BOOLEAN             result = FALSE;
+
+    if (service & BTA_HFP_SERVICE_MASK)
+    {
+        uuid = UUID_SERVCLASS_HF_HANDSFREE;
+        p_scb->peer_version = HFP_VERSION_1_1;   /* Default version */
+    }
+    else if (service & BTA_HSP_SERVICE_MASK && p_scb->role == BTA_AG_INT)
+    {
+        uuid = UUID_SERVCLASS_HEADSET_HS;
+        p_scb->peer_version = 0x0100;   /* Default version */
+    }
+    else
+    {
+        return result;
+    }
+
+    /* loop through all records we found */
+    while (TRUE)
+    {
+        /* get next record; if none found, we're done */
+        if ((p_rec = SDP_FindServiceInDb(p_scb->p_disc_db, uuid, p_rec)) == NULL)
+        {
+            if (uuid == UUID_SERVCLASS_HEADSET_HS)
+            {
+                /* Search again in case the peer device is HSP v1.0 */
+                uuid = UUID_SERVCLASS_HEADSET;
+                if ((p_rec = SDP_FindServiceInDb(p_scb->p_disc_db, uuid, p_rec)) == NULL)
+                {
+                    break;
+                }
+            }
+            else
+                break;
+        }
+
+        /* get scn from proto desc list if initiator */
+        if (p_scb->role == BTA_AG_INT)
+        {
+            if (SDP_FindProtocolListElemInRec(p_rec, UUID_PROTOCOL_RFCOMM, &pe))
+            {
+                p_scb->peer_scn = (UINT8) pe.params[0];
+            }
+            else
+            {
+                continue;
+            }
+        }
+
+        /* get profile version (if failure, version parameter is not updated) */
+        SDP_FindProfileVersionInRec(p_rec, uuid, &p_scb->peer_version);
+
+        /* get features if HFP */
+        if (service & BTA_HFP_SERVICE_MASK)
+        {
+            if ((p_attr = SDP_FindAttributeInRec(p_rec, ATTR_ID_SUPPORTED_FEATURES)) != NULL)
+            {
+                /* Found attribute. Get value. */
+                /* There might be race condition between SDP and BRSF.  */
+                /* Do not update if we already received BRSF.           */
+                if (p_scb->peer_features == 0)
+                    p_scb->peer_features = p_attr->attr_value.v.u16;
+            }
+        }
+        else    /* HSP */
+        {
+            if ((p_attr = SDP_FindAttributeInRec(p_rec, ATTR_ID_REMOTE_AUDIO_VOLUME_CONTROL)) != NULL)
+            {
+                /* Remote volume control of HSP */
+                if (p_attr->attr_value.v.u8)
+                    p_scb->peer_features |= BTA_AG_PEER_FEAT_VOL;
+                else
+                    p_scb->peer_features &= ~BTA_AG_PEER_FEAT_VOL;
+            }
+
+        }
+
+        /* found what we needed */
+        result = TRUE;
+        break;
+    }
+    return result;
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_do_disc
+**
+** Description      Do service discovery.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_ag_do_disc(tBTA_AG_SCB *p_scb, tBTA_SERVICE_MASK service)
+{
+    tSDP_UUID       uuid_list[2];
+    UINT16          num_uuid = 1;
+    UINT16          attr_list[4];
+    UINT8           num_attr;
+    BOOLEAN         db_inited = FALSE;
+
+    /* HFP initiator; get proto list and features */
+    if (service & BTA_HFP_SERVICE_MASK && p_scb->role == BTA_AG_INT)
+    {
+        attr_list[0] = ATTR_ID_SERVICE_CLASS_ID_LIST;
+        attr_list[1] = ATTR_ID_PROTOCOL_DESC_LIST;
+        attr_list[2] = ATTR_ID_BT_PROFILE_DESC_LIST;
+        attr_list[3] = ATTR_ID_SUPPORTED_FEATURES;
+        num_attr = 4;
+        uuid_list[0].uu.uuid16 = UUID_SERVCLASS_HF_HANDSFREE;
+    }
+    /* HFP acceptor; get features */
+    else if (service & BTA_HFP_SERVICE_MASK && p_scb->role == BTA_AG_ACP)
+    {
+        attr_list[0] = ATTR_ID_SERVICE_CLASS_ID_LIST;
+        attr_list[1] = ATTR_ID_BT_PROFILE_DESC_LIST;
+        attr_list[2] = ATTR_ID_SUPPORTED_FEATURES;
+        num_attr = 3;
+        uuid_list[0].uu.uuid16 = UUID_SERVCLASS_HF_HANDSFREE;
+    }
+    /* HSP initiator; get proto list */
+    else if (service & BTA_HSP_SERVICE_MASK && p_scb->role == BTA_AG_INT)
+    {
+        attr_list[0] = ATTR_ID_SERVICE_CLASS_ID_LIST;
+        attr_list[1] = ATTR_ID_PROTOCOL_DESC_LIST;
+        attr_list[2] = ATTR_ID_BT_PROFILE_DESC_LIST;
+        attr_list[3] = ATTR_ID_REMOTE_AUDIO_VOLUME_CONTROL;
+        num_attr = 4;
+
+        uuid_list[0].uu.uuid16 = UUID_SERVCLASS_HEADSET;        /* Legacy from HSP v1.0 */
+        if (p_scb->hsp_version >= HSP_VERSION_1_2)
+        {
+            uuid_list[1].uu.uuid16 = UUID_SERVCLASS_HEADSET_HS;
+            num_uuid = 2;
+        }
+    }
+    /* HSP acceptor; no discovery */
+    else
+    {
+        return;
+    }
+
+    /* allocate buffer for sdp database */
+    p_scb->p_disc_db = (tSDP_DISCOVERY_DB *)osi_malloc(BTA_AG_DISC_BUF_SIZE);
+    /* set up service discovery database; attr happens to be attr_list len */
+    uuid_list[0].len = LEN_UUID_16;
+    uuid_list[1].len = LEN_UUID_16;
+    db_inited = SDP_InitDiscoveryDb(p_scb->p_disc_db, BTA_AG_DISC_BUF_SIZE,
+                                    num_uuid, uuid_list, num_attr, attr_list);
+
+    if(db_inited)
+    {
+        /*Service discovery not initiated */
+        db_inited = SDP_ServiceSearchAttributeRequest(p_scb->peer_addr, p_scb->p_disc_db,
+                                      bta_ag_sdp_cback_tbl[bta_ag_scb_to_idx(p_scb) - 1]);
+    }
+
+    if(!db_inited)
+    {
+        /*free discover db */
+        bta_ag_free_db(p_scb, NULL);
+        /* sent failed event */
+        bta_ag_sm_execute(p_scb, BTA_AG_DISC_FAIL_EVT, NULL);
+    }
+
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_free_db
+**
+** Description      Free discovery database.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_ag_free_db(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data)
+{
+    UNUSED(p_data);
+    osi_free_and_reset((void **)&p_scb->p_disc_db);
+}
diff --git a/rtkbt/code/bt/bta/ar/bta_ar.c b/rtkbt/code/bt/bta/ar/bta_ar.c
new file mode 100755
index 0000000..21d89c7
--- /dev/null
+++ b/rtkbt/code/bt/bta/ar/bta_ar.c
@@ -0,0 +1,344 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2008-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the implementation for the audio/video registration module.
+ *
+ ******************************************************************************/
+
+#include <string.h>
+#include "bta_ar_api.h"
+#include "bta_ar_int.h"
+
+
+/* AV control block */
+#if BTA_DYNAMIC_MEMORY == FALSE
+tBTA_AR_CB  bta_ar_cb;
+#endif
+
+/*******************************************************************************
+**
+** Function         bta_ar_id
+**
+** Description      This function maps sys_id to ar id mask.
+**
+** Returns          void
+**
+*******************************************************************************/
+static UINT8 bta_ar_id(tBTA_SYS_ID sys_id)
+{
+    UINT8   mask = 0;
+    if (sys_id == BTA_ID_AV)
+    {
+        mask = BTA_AR_AV_MASK;
+    }
+    else if (sys_id == BTA_ID_AVK)
+    {
+        mask = BTA_AR_AVK_MASK;
+    }
+
+    return mask;
+}
+
+/*******************************************************************************
+**
+** Function         bta_ar_init
+**
+** Description      This function is called to register to AVDTP.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_ar_init(void)
+{
+    /* initialize control block */
+    memset(&bta_ar_cb, 0, sizeof(tBTA_AR_CB));
+}
+
+/*******************************************************************************
+**
+** Function         bta_ar_reg_avdt
+**
+** Description      This function is called to register to AVDTP.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_ar_avdt_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data)
+{
+    /* route the AVDT registration callback to av or avk */
+    if (bta_ar_cb.p_av_conn_cback)
+        (*bta_ar_cb.p_av_conn_cback)(handle, bd_addr, event, p_data);
+    if (bta_ar_cb.p_avk_conn_cback)
+        (*bta_ar_cb.p_avk_conn_cback)(handle, bd_addr, event, p_data);
+}
+
+/*******************************************************************************
+**
+** Function         bta_ar_reg_avdt
+**
+** Description      AR module registration to AVDT.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_ar_reg_avdt(tAVDT_REG *p_reg, tAVDT_CTRL_CBACK *p_cback, tBTA_SYS_ID sys_id)
+{
+    UINT8   mask = 0;
+
+    if (sys_id == BTA_ID_AV)
+    {
+        bta_ar_cb.p_av_conn_cback = p_cback;
+        mask = BTA_AR_AV_MASK;
+    }
+    else if (sys_id == BTA_ID_AVK)
+    {
+        bta_ar_cb.p_avk_conn_cback = p_cback;
+        mask = BTA_AR_AVK_MASK;
+    }
+#if (BTA_AR_DEBUG == TRUE)
+    else
+    {
+        APPL_TRACE_ERROR("bta_ar_reg_avdt: the registration is from wrong sys_id:%d", sys_id);
+    }
+#endif
+
+    if (mask)
+    {
+        if (bta_ar_cb.avdt_registered == 0)
+        {
+            AVDT_Register(p_reg, bta_ar_avdt_cback);
+        }
+        bta_ar_cb.avdt_registered |= mask;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_ar_dereg_avdt
+**
+** Description      This function is called to de-register from AVDTP.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_ar_dereg_avdt(tBTA_SYS_ID sys_id)
+{
+    UINT8   mask = 0;
+
+    if (sys_id == BTA_ID_AV)
+    {
+        bta_ar_cb.p_av_conn_cback = NULL;
+        mask = BTA_AR_AV_MASK;
+    }
+    else if (sys_id == BTA_ID_AVK)
+    {
+        bta_ar_cb.p_avk_conn_cback = NULL;
+        mask = BTA_AR_AVK_MASK;
+    }
+    bta_ar_cb.avdt_registered &= ~mask;
+
+    if (bta_ar_cb.avdt_registered == 0)
+        AVDT_Deregister();
+}
+
+/*******************************************************************************
+**
+** Function         bta_ar_avdt_conn
+**
+** Description      This function is called to let ar know that some AVDTP profile
+**                  is connected for this sys_id.
+**                  If the other sys modules started a timer for PENDING_EVT,
+**                  the timer can be stopped now.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_ar_avdt_conn(tBTA_SYS_ID sys_id, BD_ADDR bd_addr)
+{
+    UINT8       event = BTA_AR_AVDT_CONN_EVT;
+    tAVDT_CTRL  data;
+
+    if (sys_id == BTA_ID_AV)
+    {
+        if (bta_ar_cb.p_avk_conn_cback)
+        {
+            (*bta_ar_cb.p_avk_conn_cback)(0, bd_addr, event, &data);
+        }
+    }
+    else if (sys_id == BTA_ID_AVK)
+    {
+        if (bta_ar_cb.p_av_conn_cback)
+        {
+            (*bta_ar_cb.p_av_conn_cback)(0, bd_addr, event, &data);
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_ar_reg_avct
+**
+** Description      This function is called to register to AVCTP.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_ar_reg_avct(UINT16 mtu, UINT16 mtu_br, UINT8 sec_mask, tBTA_SYS_ID sys_id)
+{
+    UINT8   mask = bta_ar_id (sys_id);
+
+    if (mask)
+    {
+        if (bta_ar_cb.avct_registered == 0)
+        {
+            AVCT_Register(mtu, mtu_br, sec_mask);
+        }
+        bta_ar_cb.avct_registered |= mask;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_ar_dereg_avct
+**
+** Description      This function is called to deregister from AVCTP.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_ar_dereg_avct(tBTA_SYS_ID sys_id)
+{
+    UINT8   mask = bta_ar_id (sys_id);
+
+    bta_ar_cb.avct_registered &= ~mask;
+
+    if (bta_ar_cb.avct_registered == 0)
+        AVCT_Deregister();
+}
+
+/******************************************************************************
+**
+** Function         bta_ar_reg_avrc
+**
+** Description      This function is called to register an SDP record for AVRCP.
+**
+** Returns          void
+**
+******************************************************************************/
+void bta_ar_reg_avrc(UINT16 service_uuid, char *service_name, char *provider_name,
+                     UINT16 categories, tBTA_SYS_ID sys_id, BOOLEAN browse_supported,
+                     UINT16 profile_version)
+{
+    UINT8   mask = bta_ar_id (sys_id);
+    UINT8   temp[8], *p;
+
+    if (!mask || !categories)
+        return;
+
+    if (service_uuid == UUID_SERVCLASS_AV_REM_CTRL_TARGET)
+    {
+        if (bta_ar_cb.sdp_tg_handle == 0)
+        {
+            bta_ar_cb.tg_registered = mask;
+            bta_ar_cb.sdp_tg_handle = SDP_CreateRecord();
+            AVRC_AddRecord(service_uuid, service_name, provider_name, categories,
+                           bta_ar_cb.sdp_tg_handle, browse_supported, profile_version);
+            bta_sys_add_uuid(service_uuid);
+        }
+        /* only one TG is allowed (first-come, first-served).
+         * If sdp_tg_handle is non-0, ignore this request */
+    }
+    else if ((service_uuid == UUID_SERVCLASS_AV_REMOTE_CONTROL)||
+             (service_uuid == UUID_SERVCLASS_AV_REM_CTRL_CONTROL))
+    {
+        bta_ar_cb.ct_categories [mask - 1] = categories;
+        categories = bta_ar_cb.ct_categories[0]|bta_ar_cb.ct_categories[1];
+        if (bta_ar_cb.sdp_ct_handle == 0)
+        {
+            bta_ar_cb.sdp_ct_handle = SDP_CreateRecord();
+            AVRC_AddRecord(service_uuid, service_name, provider_name, categories,
+                           bta_ar_cb.sdp_ct_handle, browse_supported, profile_version);
+            bta_sys_add_uuid(service_uuid);
+        }
+        else
+        {
+            /* multiple CTs are allowed.
+             * Change supported categories on the second one */
+            p = temp;
+            UINT16_TO_BE_STREAM(p, categories);
+            SDP_AddAttribute(bta_ar_cb.sdp_ct_handle, ATTR_ID_SUPPORTED_FEATURES, UINT_DESC_TYPE,
+                      (UINT32)2, (UINT8*)temp);
+        }
+    }
+}
+
+/******************************************************************************
+**
+** Function         bta_ar_dereg_avrc
+**
+** Description      This function is called to de-register/delete an SDP record for AVRCP.
+**
+** Returns          void
+**
+******************************************************************************/
+void bta_ar_dereg_avrc(UINT16 service_uuid, tBTA_SYS_ID sys_id)
+{
+    UINT8   mask = bta_ar_id (sys_id);
+    UINT16  categories = 0;
+    UINT8   temp[8], *p;
+
+    if (!mask)
+        return;
+
+    if (service_uuid == UUID_SERVCLASS_AV_REM_CTRL_TARGET)
+    {
+        if (bta_ar_cb.sdp_tg_handle && mask == bta_ar_cb.tg_registered)
+        {
+            bta_ar_cb.tg_registered = 0;
+            SDP_DeleteRecord(bta_ar_cb.sdp_tg_handle);
+            bta_ar_cb.sdp_tg_handle = 0;
+            bta_sys_remove_uuid(service_uuid);
+        }
+    }
+    else if (service_uuid == UUID_SERVCLASS_AV_REMOTE_CONTROL)
+    {
+        if (bta_ar_cb.sdp_ct_handle)
+        {
+            bta_ar_cb.ct_categories [mask - 1] = 0;
+            categories = bta_ar_cb.ct_categories[0]|bta_ar_cb.ct_categories[1];
+            if (!categories)
+            {
+                /* no CT is still registered - cleaup */
+                SDP_DeleteRecord(bta_ar_cb.sdp_ct_handle);
+                bta_ar_cb.sdp_ct_handle = 0;
+                bta_sys_remove_uuid(service_uuid);
+            }
+            else
+            {
+                /* change supported categories to the remaning one */
+                p = temp;
+                UINT16_TO_BE_STREAM(p, categories);
+                SDP_AddAttribute(bta_ar_cb.sdp_ct_handle, ATTR_ID_SUPPORTED_FEATURES, UINT_DESC_TYPE,
+                          (UINT32)2, (UINT8*)temp);
+            }
+        }
+    }
+
+}
diff --git a/rtkbt/code/bt/bta/ar/bta_ar_int.h b/rtkbt/code/bt/bta/ar/bta_ar_int.h
new file mode 100755
index 0000000..d230448
--- /dev/null
+++ b/rtkbt/code/bt/bta/ar/bta_ar_int.h
@@ -0,0 +1,64 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2008-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the private interface file for the BTA audio/video registration
+ *  module.
+ *
+ ******************************************************************************/
+#ifndef BTA_AR_INT_H
+#define BTA_AR_INT_H
+
+#include "bta_av_api.h"
+
+
+#ifndef BTA_AR_DEBUG
+#define BTA_AR_DEBUG    FALSE
+#endif
+
+#define BTA_AR_AV_MASK      0x01
+#define BTA_AR_AVK_MASK     0x02
+
+/* data associated with BTA_AR */
+typedef struct
+{
+    tAVDT_CTRL_CBACK *p_av_conn_cback;       /* av connection callback function */
+    tAVDT_CTRL_CBACK *p_avk_conn_cback;      /* avk connection callback function */
+    UINT8           avdt_registered;
+    UINT8           avct_registered;
+	UINT32          sdp_tg_handle;
+	UINT32          sdp_ct_handle;
+    UINT16          ct_categories[2];
+    UINT8           tg_registered;
+    tBTA_AV_HNDL    hndl;       /* Handle associated with the stream that rejected the connection. */
+} tBTA_AR_CB;
+
+/*****************************************************************************
+**  Global data
+*****************************************************************************/
+
+/* control block declaration */
+#if BTA_DYNAMIC_MEMORY == FALSE
+extern tBTA_AR_CB bta_ar_cb;
+#else
+extern tBTA_AR_CB *bta_ar_cb_ptr;
+#define bta_ar_cb (*bta_ar_cb_ptr)
+#endif
+
+#endif /* BTA_AR_INT_H */
diff --git a/rtkbt/code/bt/bta/av/bta_av_aact.c b/rtkbt/code/bt/bta/av/bta_av_aact.c
new file mode 100755
index 0000000..6c5d874
--- /dev/null
+++ b/rtkbt/code/bt/bta/av/bta_av_aact.c
@@ -0,0 +1,3208 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2004-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains action functions for advanced audio/video stream
+ *  state machine. these functions are shared by both audio and video
+ *  streams.
+ *
+ ******************************************************************************/
+
+#include "bt_target.h"
+#if defined(BTA_AV_INCLUDED) && (BTA_AV_INCLUDED == TRUE)
+
+#include <assert.h>
+#include <string.h>
+
+#include "avdt_api.h"
+#include "bta_av_int.h"
+#include "bt_utils.h"
+#include "l2cdefs.h"
+#include "l2c_api.h"
+#include "osi/include/properties.h"
+#include "utl.h"
+#include "vendor.h"
+
+#if( defined BTA_AR_INCLUDED ) && (BTA_AR_INCLUDED == TRUE)
+#include "bta_ar_api.h"
+#endif
+
+/*****************************************************************************
+**  Constants
+*****************************************************************************/
+
+/* the delay time in milliseconds to start service discovery on AVRCP */
+#ifndef BTA_AV_RC_DISC_TIME_VAL
+#define BTA_AV_RC_DISC_TIME_VAL     3500
+#endif
+
+/* the timer in milliseconds to guard against link busy and AVDT_CloseReq failed to be sent */
+#ifndef BTA_AV_CLOSE_REQ_TIME_VAL
+#define BTA_AV_CLOSE_REQ_TIME_VAL   4000
+#endif
+
+/* number to retry on reconfigure failure - some headsets requirs this number to be more than 1 */
+#ifndef BTA_AV_RECONFIG_RETRY
+#define BTA_AV_RECONFIG_RETRY       6
+#endif
+
+/* ACL quota we are letting FW use for A2DP Offload Tx. */
+#define BTA_AV_A2DP_OFFLOAD_XMIT_QUOTA      4
+
+static void bta_av_st_rc_timer(tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data);
+
+static const size_t SBC_MAX_BITPOOL_OFFSET = 6;
+static const size_t SBC_MAX_BITPOOL = 53;
+
+/* state machine states */
+enum
+{
+    BTA_AV_INIT_SST,
+    BTA_AV_INCOMING_SST,
+    BTA_AV_OPENING_SST,
+    BTA_AV_OPEN_SST,
+    BTA_AV_RCFG_SST,
+    BTA_AV_CLOSING_SST
+};
+
+
+/* the call out functions for audio stream */
+const tBTA_AV_CO_FUNCTS bta_av_a2d_cos =
+{
+    bta_av_co_audio_init,
+    bta_av_co_audio_disc_res,
+    bta_av_co_audio_getconfig,
+    bta_av_co_audio_setconfig,
+    bta_av_co_audio_open,
+    bta_av_co_audio_close,
+    bta_av_co_audio_start,
+    bta_av_co_audio_stop,
+    bta_av_co_audio_src_data_path,
+    bta_av_co_audio_delay
+};
+
+/* ssm action functions for audio stream */
+const tBTA_AV_SACT bta_av_a2d_action[] =
+{
+    bta_av_do_disc_a2d,     /* BTA_AV_DO_DISC  */
+    bta_av_cleanup,         /* BTA_AV_CLEANUP */
+    bta_av_free_sdb,        /* BTA_AV_FREE_SDB */
+    bta_av_config_ind,      /* BTA_AV_CONFIG_IND */
+    bta_av_disconnect_req,  /* BTA_AV_DISCONNECT_REQ */
+    bta_av_security_req,    /* BTA_AV_SECURITY_REQ */
+    bta_av_security_rsp,    /* BTA_AV_SECURITY_RSP */
+    bta_av_setconfig_rsp,   /* BTA_AV_SETCONFIG_RSP */
+    bta_av_st_rc_timer,     /* BTA_AV_ST_RC_TIMER */
+    bta_av_str_opened,      /* BTA_AV_STR_OPENED */
+    bta_av_security_ind,    /* BTA_AV_SECURITY_IND */
+    bta_av_security_cfm,    /* BTA_AV_SECURITY_CFM */
+    bta_av_do_close,        /* BTA_AV_DO_CLOSE */
+    bta_av_connect_req,     /* BTA_AV_CONNECT_REQ */
+    bta_av_sdp_failed,      /* BTA_AV_SDP_FAILED */
+    bta_av_disc_results,    /* BTA_AV_DISC_RESULTS */
+    bta_av_disc_res_as_acp, /* BTA_AV_DISC_RES_AS_ACP */
+    bta_av_open_failed,     /* BTA_AV_OPEN_FAILED */
+    bta_av_getcap_results,  /* BTA_AV_GETCAP_RESULTS */
+    bta_av_setconfig_rej,   /* BTA_AV_SETCONFIG_REJ */
+    bta_av_discover_req,    /* BTA_AV_DISCOVER_REQ */
+    bta_av_conn_failed,     /* BTA_AV_CONN_FAILED */
+    bta_av_do_start,        /* BTA_AV_DO_START */
+    bta_av_str_stopped,     /* BTA_AV_STR_STOPPED */
+    bta_av_reconfig,        /* BTA_AV_RECONFIG */
+    bta_av_data_path,       /* BTA_AV_DATA_PATH */
+    bta_av_start_ok,        /* BTA_AV_START_OK */
+    bta_av_start_failed,    /* BTA_AV_START_FAILED */
+    bta_av_str_closed,      /* BTA_AV_STR_CLOSED */
+    bta_av_clr_cong,        /* BTA_AV_CLR_CONG */
+    bta_av_suspend_cfm,     /* BTA_AV_SUSPEND_CFM */
+    bta_av_rcfg_str_ok,     /* BTA_AV_RCFG_STR_OK */
+    bta_av_rcfg_failed,     /* BTA_AV_RCFG_FAILED */
+    bta_av_rcfg_connect,    /* BTA_AV_RCFG_CONNECT */
+    bta_av_rcfg_discntd,    /* BTA_AV_RCFG_DISCNTD */
+    bta_av_suspend_cont,    /* BTA_AV_SUSPEND_CONT */
+    bta_av_rcfg_cfm,        /* BTA_AV_RCFG_CFM */
+    bta_av_rcfg_open,       /* BTA_AV_RCFG_OPEN */
+    bta_av_security_rej,    /* BTA_AV_SECURITY_REJ */
+    bta_av_open_rc,         /* BTA_AV_OPEN_RC */
+    bta_av_chk_2nd_start,   /* BTA_AV_CHK_2ND_START */
+    bta_av_save_caps,       /* BTA_AV_SAVE_CAPS */
+    bta_av_set_use_rc,      /* BTA_AV_SET_USE_RC */
+    bta_av_cco_close,       /* BTA_AV_CCO_CLOSE */
+    bta_av_switch_role,     /* BTA_AV_SWITCH_ROLE */
+    bta_av_role_res,        /* BTA_AV_ROLE_RES */
+    bta_av_delay_co,        /* BTA_AV_DELAY_CO */
+    bta_av_open_at_inc,     /* BTA_AV_OPEN_AT_INC */
+    bta_av_offload_req,     /* BTA_AV_OFFLOAD_REQ */
+    bta_av_offload_rsp,     /* BTA_AV_OFFLOAD_RSP */
+    NULL
+};
+
+/* these tables translate AVDT events to SSM events */
+static const UINT16 bta_av_stream_evt_ok[] = {
+    BTA_AV_STR_DISC_OK_EVT,         /* AVDT_DISCOVER_CFM_EVT */
+    BTA_AV_STR_GETCAP_OK_EVT,       /* AVDT_GETCAP_CFM_EVT */
+    BTA_AV_STR_OPEN_OK_EVT,         /* AVDT_OPEN_CFM_EVT */
+    BTA_AV_STR_OPEN_OK_EVT,         /* AVDT_OPEN_IND_EVT */
+    BTA_AV_STR_CONFIG_IND_EVT,      /* AVDT_CONFIG_IND_EVT */
+    BTA_AV_STR_START_OK_EVT,        /* AVDT_START_CFM_EVT */
+    BTA_AV_STR_START_OK_EVT,        /* AVDT_START_IND_EVT */
+    BTA_AV_STR_SUSPEND_CFM_EVT,     /* AVDT_SUSPEND_CFM_EVT */
+    BTA_AV_STR_SUSPEND_CFM_EVT,     /* AVDT_SUSPEND_IND_EVT */
+    BTA_AV_STR_CLOSE_EVT,           /* AVDT_CLOSE_CFM_EVT */
+    BTA_AV_STR_CLOSE_EVT,           /* AVDT_CLOSE_IND_EVT */
+    BTA_AV_STR_RECONFIG_CFM_EVT,    /* AVDT_RECONFIG_CFM_EVT */
+    0,                              /* AVDT_RECONFIG_IND_EVT */
+    BTA_AV_STR_SECURITY_CFM_EVT,    /* AVDT_SECURITY_CFM_EVT */
+    BTA_AV_STR_SECURITY_IND_EVT,    /* AVDT_SECURITY_IND_EVT */
+    BTA_AV_STR_WRITE_CFM_EVT,       /* AVDT_WRITE_CFM_EVT */
+    BTA_AV_AVDT_CONNECT_EVT,        /* AVDT_CONNECT_IND_EVT */
+    BTA_AV_AVDT_DISCONNECT_EVT,     /* AVDT_DISCONNECT_IND_EVT */
+#if (AVDT_REPORTING == TRUE)
+    BTA_AV_AVDT_RPT_CONN_EVT,       /* AVDT_REPORT_CONN_EVT */
+    BTA_AV_AVDT_RPT_CONN_EVT,       /* AVDT_REPORT_DISCONN_EVT */
+#endif
+    BTA_AV_AVDT_DELAY_RPT_EVT,      /* AVDT_DELAY_REPORT_EVT */
+    0                               /* AVDT_DELAY_REPORT_CFM_EVT */
+};
+
+static const UINT16 bta_av_stream_evt_fail[] = {
+    BTA_AV_STR_DISC_FAIL_EVT,       /* AVDT_DISCOVER_CFM_EVT */
+    BTA_AV_STR_GETCAP_FAIL_EVT,     /* AVDT_GETCAP_CFM_EVT */
+    BTA_AV_STR_OPEN_FAIL_EVT,       /* AVDT_OPEN_CFM_EVT */
+    BTA_AV_STR_OPEN_OK_EVT,         /* AVDT_OPEN_IND_EVT */
+    BTA_AV_STR_CONFIG_IND_EVT,      /* AVDT_CONFIG_IND_EVT */
+    BTA_AV_STR_START_FAIL_EVT,      /* AVDT_START_CFM_EVT */
+    BTA_AV_STR_START_OK_EVT,        /* AVDT_START_IND_EVT */
+    BTA_AV_STR_SUSPEND_CFM_EVT,     /* AVDT_SUSPEND_CFM_EVT */
+    BTA_AV_STR_SUSPEND_CFM_EVT,     /* AVDT_SUSPEND_IND_EVT */
+    BTA_AV_STR_CLOSE_EVT,           /* AVDT_CLOSE_CFM_EVT */
+    BTA_AV_STR_CLOSE_EVT,           /* AVDT_CLOSE_IND_EVT */
+    BTA_AV_STR_RECONFIG_CFM_EVT,    /* AVDT_RECONFIG_CFM_EVT */
+    0,                              /* AVDT_RECONFIG_IND_EVT */
+    BTA_AV_STR_SECURITY_CFM_EVT,    /* AVDT_SECURITY_CFM_EVT */
+    BTA_AV_STR_SECURITY_IND_EVT,    /* AVDT_SECURITY_IND_EVT */
+    BTA_AV_STR_WRITE_CFM_EVT,       /* AVDT_WRITE_CFM_EVT */
+    BTA_AV_AVDT_CONNECT_EVT,        /* AVDT_CONNECT_IND_EVT */
+    BTA_AV_AVDT_DISCONNECT_EVT,     /* AVDT_DISCONNECT_IND_EVT */
+#if (AVDT_REPORTING == TRUE)
+    BTA_AV_AVDT_RPT_CONN_EVT,       /* AVDT_REPORT_CONN_EVT */
+    BTA_AV_AVDT_RPT_CONN_EVT,       /* AVDT_REPORT_DISCONN_EVT */
+#endif
+    BTA_AV_AVDT_DELAY_RPT_EVT,      /* AVDT_DELAY_REPORT_EVT */
+    0                               /* AVDT_DELAY_REPORT_CFM_EVT */
+};
+
+void bta_av_stream_data_cback(UINT8 handle, BT_HDR *p_pkt, UINT32 time_stamp, UINT8 m_pt);
+static void bta_av_stream0_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data);
+static void bta_av_stream1_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data);
+#if BTA_AV_NUM_STRS > 2
+static void bta_av_stream2_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data);
+#endif
+#if BTA_AV_NUM_STRS > 3
+static void bta_av_stream3_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data);
+#endif
+#if BTA_AV_NUM_STRS > 4
+static void bta_av_stream4_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data);
+#endif
+#if BTA_AV_NUM_STRS > 5
+static void bta_av_stream5_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data);
+#endif
+/* the array of callback functions to receive events from AVDT control channel */
+tAVDT_CTRL_CBACK * const bta_av_dt_cback[] =
+{
+    bta_av_stream0_cback
+    ,bta_av_stream1_cback
+#if BTA_AV_NUM_STRS > 2
+    ,bta_av_stream2_cback
+#endif
+#if BTA_AV_NUM_STRS > 3
+    ,bta_av_stream3_cback
+#endif
+#if BTA_AV_NUM_STRS > 4
+    ,bta_av_stream4_cback
+#endif
+#if BTA_AV_NUM_STRS > 5
+    ,bta_av_stream5_cback
+#endif
+};
+/***********************************************
+**
+** Function         bta_get_scb_handle
+**
+** Description      gives the registered AVDT handle.by checking with sep_type.
+**
+**
+** Returns          void
+***********************************************/
+static UINT8 bta_av_get_scb_handle(tBTA_AV_SCB *p_scb, UINT8 local_sep)
+{
+    for (int i = 0; i < BTA_AV_MAX_SEPS; i++) {
+        if ((p_scb->seps[i].tsep == local_sep) &&
+            (p_scb->seps[i].codec_type == p_scb->codec_type))
+            return (p_scb->seps[i].av_handle);
+    }
+    APPL_TRACE_DEBUG(" bta_av_get_scb_handle appropiate sep_type not found")
+    return 0; /* return invalid handle */
+}
+
+/***********************************************
+**
+** Function         bta_av_get_scb_sep_type
+**
+** Description      gives the sep type by cross-checking with AVDT handle
+**
+**
+** Returns          void
+***********************************************/
+static UINT8 bta_av_get_scb_sep_type(tBTA_AV_SCB *p_scb, UINT8 tavdt_handle)
+{
+    for (int i = 0; i < BTA_AV_MAX_SEPS; i++) {
+        if (p_scb->seps[i].av_handle == tavdt_handle)
+            return (p_scb->seps[i].tsep);
+    }
+    APPL_TRACE_DEBUG(" bta_av_get_scb_sep_type appropiate handle not found")
+    return 3; /* return invalid sep type */
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_save_addr
+**
+** Description      copy the bd_addr and maybe reset the supported flags
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_av_save_addr(tBTA_AV_SCB *p_scb, const BD_ADDR b)
+{
+    APPL_TRACE_DEBUG("bta_av_save_addr r:%d, s:%d",
+        p_scb->recfg_sup, p_scb->suspend_sup);
+    if(bdcmp(p_scb->peer_addr, b) != 0)
+    {
+        APPL_TRACE_ERROR("reset flags");
+        /* a new addr, reset the supported flags */
+        p_scb->recfg_sup    = TRUE;
+        p_scb->suspend_sup  = TRUE;
+    }
+
+    /* do this copy anyway, just in case the first addr matches
+     * the control block one by accident */
+    bdcpy(p_scb->peer_addr, b);
+}
+
+/*******************************************************************************
+**
+** Function         notify_start_failed
+**
+** Description      notify up-layer AV start failed
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void notify_start_failed(tBTA_AV_SCB *p_scb)
+{
+    tBTA_AV_START   start;
+    /* if start failed, clear role */
+    p_scb->role &= ~BTA_AV_ROLE_START_INT;
+    start.chnl   = p_scb->chnl;
+    start.status = BTA_AV_FAIL;
+    start.initiator = TRUE;
+    start.hndl   = p_scb->hndl;
+    (*bta_av_cb.p_cback)(BTA_AV_START_EVT, (tBTA_AV *) &start);
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_st_rc_timer
+**
+** Description      start the AVRC timer if no RC connection & CT is supported &
+**                  RC is used or
+**                  as ACP (we do not really know if we want AVRC)
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_av_st_rc_timer(tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
+{
+    UNUSED(p_data);
+
+    APPL_TRACE_DEBUG("bta_av_st_rc_timer rc_handle:%d, use_rc: %d",
+        p_scb->rc_handle, p_scb->use_rc);
+    /* for outgoing RC connection as INT/CT */
+    if ((p_scb->rc_handle == BTA_AV_RC_HANDLE_NONE) &&
+        /* (bta_av_cb.features & BTA_AV_FEAT_RCCT) && */
+        (p_scb->use_rc == TRUE || (p_scb->role & BTA_AV_ROLE_AD_ACP)))
+    {
+        if ((p_scb->wait & BTA_AV_WAIT_ROLE_SW_BITS) == 0) {
+            bta_sys_start_timer(p_scb->avrc_ct_timer, BTA_AV_RC_DISC_TIME_VAL,
+                                BTA_AV_AVRC_TIMER_EVT, p_scb->hndl);
+        } else {
+            p_scb->wait |= BTA_AV_WAIT_CHECK_RC;
+        }
+    }
+
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_next_getcap
+**
+** Description      The function gets the capabilities of the next available
+**                  stream found in the discovery results.
+**
+** Returns          TRUE if we sent request to AVDT, FALSE otherwise.
+**
+*******************************************************************************/
+static BOOLEAN bta_av_next_getcap(tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
+{
+    int     i;
+    tAVDT_GETCAP_REQ    *p_req;
+    BOOLEAN     sent_cmd = FALSE;
+    UINT16 uuid_int = p_scb->uuid_int;
+    UINT8 sep_requested = 0;
+
+    if(uuid_int == UUID_SERVCLASS_AUDIO_SOURCE)
+       sep_requested = AVDT_TSEP_SNK;
+    else if(uuid_int == UUID_SERVCLASS_AUDIO_SINK)
+       sep_requested = AVDT_TSEP_SRC;
+
+    for (i = p_scb->sep_info_idx; i < p_scb->num_seps; i++)
+    {
+        /* steam not in use, is a sink, and is the right media type (audio/video) */
+        if ((p_scb->sep_info[i].in_use == FALSE) &&
+            (p_scb->sep_info[i].tsep == sep_requested) &&
+            (p_scb->sep_info[i].media_type == p_scb->media_type))
+        {
+            p_scb->sep_info_idx = i;
+
+            /* we got a stream; get its capabilities */
+            if (p_scb->p_cap == NULL)
+                p_scb->p_cap = (tAVDT_CFG *)osi_malloc(sizeof(tAVDT_CFG));
+            if (p_scb->avdt_version >= AVDT_VERSION_SYNC)
+            {
+                p_req = AVDT_GetAllCapReq;
+            }
+            else
+            {
+                p_req = AVDT_GetCapReq;
+            }
+            (*p_req)(p_scb->peer_addr,
+                           p_scb->sep_info[i].seid,
+                           p_scb->p_cap, bta_av_dt_cback[p_scb->hdi]);
+            sent_cmd = TRUE;
+            break;
+        }
+    }
+
+    /* if no streams available then stream open fails */
+    if (!sent_cmd)
+    {
+        bta_av_ssm_execute(p_scb, BTA_AV_STR_GETCAP_FAIL_EVT, p_data);
+    }
+
+    return sent_cmd;
+
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_proc_stream_evt
+**
+** Description      Utility function to compose stream events.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_av_proc_stream_evt(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data, int index)
+{
+    UINT16              sec_len = 0;
+    tBTA_AV_SCB         *p_scb = bta_av_cb.p_scb[index];
+
+    if (p_data)
+    {
+        if (event == AVDT_SECURITY_IND_EVT)
+        {
+            sec_len = (p_data->security_ind.len < BTA_AV_SECURITY_MAX_LEN) ?
+                       p_data->security_ind.len : BTA_AV_SECURITY_MAX_LEN;
+        }
+        else if (event == AVDT_SECURITY_CFM_EVT && p_data->hdr.err_code == 0)
+        {
+            sec_len = (p_data->security_cfm.len < BTA_AV_SECURITY_MAX_LEN) ?
+                       p_data->security_cfm.len : BTA_AV_SECURITY_MAX_LEN;
+        }
+    }
+
+    if (p_scb) {
+        tBTA_AV_STR_MSG *p_msg =
+            (tBTA_AV_STR_MSG *)osi_malloc(sizeof(tBTA_AV_STR_MSG) + sec_len);
+
+        /* copy event data, bd addr, and handle to event message buffer */
+        p_msg->hdr.offset = 0;
+
+        if (bd_addr != NULL)
+        {
+            bdcpy(p_msg->bd_addr, bd_addr);
+            APPL_TRACE_DEBUG("  bd_addr:%02x-%02x-%02x-%02x-%02x-%02x",
+                          bd_addr[0], bd_addr[1],
+                          bd_addr[2], bd_addr[3],
+                          bd_addr[4], bd_addr[5]);
+        }
+
+        if (p_data != NULL)
+        {
+            memcpy(&p_msg->msg, p_data, sizeof (tAVDT_CTRL));
+            /* copy config params to event message buffer */
+            switch (event)
+            {
+            case AVDT_RECONFIG_CFM_EVT:
+            APPL_TRACE_DEBUG("reconfig cfm event codec info = 0x%06x-%06x-%06x-%02x",
+                (p_msg->msg.reconfig_cfm.p_cfg->codec_info[0]<<16)+(p_msg->msg.reconfig_cfm.p_cfg->codec_info[1]<<8)+p_msg->msg.reconfig_cfm.p_cfg->codec_info[2],
+                (p_msg->msg.reconfig_cfm.p_cfg->codec_info[3]<<16)+(p_msg->msg.reconfig_cfm.p_cfg->codec_info[4]<<8)+p_msg->msg.reconfig_cfm.p_cfg->codec_info[5],
+                (p_msg->msg.reconfig_cfm.p_cfg->codec_info[6]<<16)+(p_msg->msg.reconfig_cfm.p_cfg->codec_info[7]<<8)+p_msg->msg.reconfig_cfm.p_cfg->codec_info[8],
+                p_msg->msg.reconfig_cfm.p_cfg->codec_info[9]);
+            break;
+
+
+
+            case AVDT_CONFIG_IND_EVT:
+            /* We might have 2 SEP signallings(A2DP + VDP) with one peer device on one L2CAP.
+             * If we already have a signalling connection with the bd_addr and the streaming
+             * SST is at INIT state, change it to INCOMING state to handle the signalling
+             * from the 2nd SEP.                                                                */
+            if ((bta_av_find_lcb(bd_addr, BTA_AV_LCB_FIND) != NULL) && (bta_av_is_scb_init(p_scb)))
+            {
+                bta_av_set_scb_sst_incoming (p_scb);
+
+                /* When ACP_CONNECT_EVT was received, we put first available scb to incoming state.
+                 * Later when we receive AVDT_CONFIG_IND_EVT, we use a new p_scb and set its state to
+                 * incoming which we do it above.
+                 * We also have to set the old p_scb state to init to be used later             */
+                for (int i = 0; i < BTA_AV_NUM_STRS; i++) {
+                    if ((bta_av_cb.p_scb[i]) && (i != index)) {
+                        if (bta_av_cb.p_scb[i]->state == BTA_AV_INCOMING_SST) {
+                            bta_av_cb.p_scb[i]->state = BTA_AV_INIT_SST;
+                            bta_av_cb.p_scb[i]->coll_mask = 0;
+                            break;
+                        }
+                    }
+                }
+            }
+
+            memcpy(&p_msg->cfg, p_data->config_ind.p_cfg, sizeof(tAVDT_CFG));
+            break;
+
+            case AVDT_SECURITY_IND_EVT:
+                p_msg->msg.security_ind.p_data = (UINT8 *) (p_msg + 1);
+                memcpy(p_msg->msg.security_ind.p_data, p_data->security_ind.p_data, sec_len);
+                break;
+
+            case AVDT_SECURITY_CFM_EVT:
+                p_msg->msg.security_cfm.p_data = (UINT8 *) (p_msg + 1);
+                if (p_data->hdr.err_code == 0)
+                {
+                    memcpy(p_msg->msg.security_cfm.p_data, p_data->security_cfm.p_data, sec_len);
+                }
+                break;
+            case AVDT_SUSPEND_IND_EVT:
+                    p_msg->msg.hdr.err_code = 0;
+                break;
+
+            default:
+                break;
+            }
+        }
+        else
+            p_msg->msg.hdr.err_code = 0;
+
+        /* look up application event */
+        if ((p_data == NULL) || (p_data->hdr.err_code == 0))
+        {
+            p_msg->hdr.event = bta_av_stream_evt_ok[event];
+        }
+        else
+        {
+            p_msg->hdr.event = bta_av_stream_evt_fail[event];
+        }
+
+        p_msg->initiator = FALSE;
+        if (event == AVDT_SUSPEND_CFM_EVT)
+            p_msg->initiator = TRUE;
+
+        APPL_TRACE_VERBOSE("hndl:x%x", p_scb->hndl);
+        p_msg->hdr.layer_specific = p_scb->hndl;
+        p_msg->handle   = handle;
+        p_msg->avdt_event = event;
+        bta_sys_sendmsg(p_msg);
+    }
+
+/* coverity[var_deref_model] */
+/* false-positive: bta_av_conn_cback only processes AVDT_CONNECT_IND_EVT and AVDT_DISCONNECT_IND_EVT event
+ *                 these 2 events always have associated p_data */
+    if (p_data)
+    {
+        bta_av_conn_cback(handle, bd_addr, event, p_data);
+    }
+    else
+    {
+        APPL_TRACE_ERROR("%s: p_data is null", __func__);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_stream_data_cback
+**
+** Description      This is the AVDTP callback function for stream events.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_stream_data_cback(UINT8 handle, BT_HDR *p_pkt, UINT32 time_stamp, UINT8 m_pt)
+{
+    int index = 0;
+    tBTA_AV_SCB         *p_scb ;
+    APPL_TRACE_DEBUG("bta_av_stream_data_cback avdt_handle: %d pkt_len=0x%x  ofst = 0x%x", handle,p_pkt->len,p_pkt->offset);
+    APPL_TRACE_DEBUG(" Number of frames 0x%x",*((UINT8*)(p_pkt + 1) + p_pkt->offset));
+    APPL_TRACE_DEBUG("Sequence Number 0x%x",p_pkt->layer_specific);
+    /* Get  SCB  and correct sep type*/
+    for(index = 0; index < BTA_AV_NUM_STRS;index ++ )
+    {
+        p_scb = bta_av_cb.p_scb[index];
+        if((p_scb->avdt_handle == handle)&&(p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SNK))
+            break;
+    }
+    if(index == BTA_AV_NUM_STRS) /* cannot find correct handler */
+    {
+        osi_free(p_pkt);
+        return;
+    }
+    p_pkt->event = BTA_AV_MEDIA_DATA_EVT;
+    p_scb->seps[p_scb->sep_idx].p_app_data_cback(BTA_AV_MEDIA_DATA_EVT, (tBTA_AV_MEDIA*)p_pkt);
+    osi_free(p_pkt);  /* a copy of packet had been delivered, we free this buffer */
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_stream0_cback
+**
+** Description      This is the AVDTP callback function for stream events.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_av_stream0_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data)
+{
+    APPL_TRACE_VERBOSE("bta_av_stream0_cback avdt_handle: %d event=0x%x", handle, event);
+    bta_av_proc_stream_evt(handle, bd_addr, event, p_data, 0);
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_stream1_cback
+**
+** Description      This is the AVDTP callback function for stream events.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_av_stream1_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data)
+{
+    APPL_TRACE_EVENT("bta_av_stream1_cback avdt_handle: %d event=0x%x", handle, event);
+    bta_av_proc_stream_evt(handle, bd_addr, event, p_data, 1);
+}
+
+#if BTA_AV_NUM_STRS > 2
+/*******************************************************************************
+**
+** Function         bta_av_stream2_cback
+**
+** Description      This is the AVDTP callback function for stream events.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_av_stream2_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data)
+{
+    APPL_TRACE_EVENT("bta_av_stream2_cback avdt_handle: %d event=0x%x", handle, event);
+    bta_av_proc_stream_evt(handle, bd_addr, event, p_data, 2);
+}
+#endif
+
+#if BTA_AV_NUM_STRS > 3
+/*******************************************************************************
+**
+** Function         bta_av_stream3_cback
+**
+** Description      This is the AVDTP callback function for stream events.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_av_stream3_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data)
+{
+    APPL_TRACE_EVENT("bta_av_stream3_cback avdt_handle: %d event=0x%x", handle, event);
+    bta_av_proc_stream_evt(handle, bd_addr, event, p_data, 3);
+}
+#endif
+
+/*******************************************************************************
+**
+** Function         bta_av_stream4_cback
+**
+** Description      This is the AVDTP callback function for stream events.
+**
+** Returns          void
+**
+*******************************************************************************/
+#if BTA_AV_NUM_STRS > 4
+static void bta_av_stream4_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data)
+{
+    APPL_TRACE_EVENT("bta_av_stream4_cback avdt_handle: %d event=0x%x", handle, event);
+    bta_av_proc_stream_evt(handle, bd_addr, event, p_data, 4);
+}
+#endif
+
+/*******************************************************************************
+**
+** Function         bta_av_stream5_cback
+**
+** Description      This is the AVDTP callback function for stream events.
+**
+** Returns          void
+**
+*******************************************************************************/
+#if BTA_AV_NUM_STRS > 5
+static void bta_av_stream5_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data)
+{
+    APPL_TRACE_EVENT("bta_av_stream5_cback avdt_handle: %d event=0x%x", handle, event);
+    bta_av_proc_stream_evt(handle, bd_addr, event, p_data, 5);
+}
+#endif
+
+/*******************************************************************************
+**
+** Function         bta_av_a2d_sdp_cback
+**
+** Description      A2DP service discovery callback.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_av_a2d_sdp_cback(BOOLEAN found, tA2D_Service *p_service)
+{
+    tBTA_AV_SCB *p_scb = bta_av_hndl_to_scb(bta_av_cb.handle);
+
+    if (p_scb == NULL) {
+        APPL_TRACE_ERROR("%s, no scb found for handle(0x%x)", __func__,
+                         bta_av_cb.handle);
+        return;
+    }
+
+    tBTA_AV_SDP_RES *p_msg =
+        (tBTA_AV_SDP_RES *)osi_malloc(sizeof(tBTA_AV_SDP_RES));
+    p_msg->hdr.event = (found) ?
+        BTA_AV_SDP_DISC_OK_EVT : BTA_AV_SDP_DISC_FAIL_EVT;
+    if (found && (p_service != NULL))
+        p_scb->avdt_version = p_service->avdt_version;
+    else
+        p_scb->avdt_version = 0x00;
+    p_msg->hdr.layer_specific = bta_av_cb.handle;
+
+    bta_sys_sendmsg(p_msg);
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_adjust_seps_idx
+**
+** Description      adjust the sep_idx
+**
+** Returns
+**
+*******************************************************************************/
+static void bta_av_adjust_seps_idx(tBTA_AV_SCB *p_scb, UINT8 avdt_handle)
+{
+    APPL_TRACE_DEBUG("bta_av_adjust_seps_idx codec_type: %d", p_scb->codec_type);
+    for (int i = 0; i < BTA_AV_MAX_SEPS; i++) {
+        APPL_TRACE_DEBUG("av_handle: %d codec_type: %d",
+            p_scb->seps[i].av_handle, p_scb->seps[i].codec_type);
+        if((p_scb->seps[i].av_handle && p_scb->codec_type == p_scb->seps[i].codec_type)
+            && (p_scb->seps[i].av_handle == avdt_handle))
+        {
+            p_scb->sep_idx = i;
+            p_scb->avdt_handle = p_scb->seps[i].av_handle;
+            break;
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_switch_role
+**
+** Description      Switch role was not started and a timer was started.
+**                  another attempt to switch role now - still opening.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_switch_role (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
+{
+    tBTA_AV_RS_RES      switch_res = BTA_AV_RS_NONE;
+    tBTA_AV_API_OPEN  *p_buf = &p_scb->q_info.open;
+    UNUSED(p_data);
+
+    APPL_TRACE_DEBUG("bta_av_switch_role wait:x%x", p_scb->wait);
+    if (p_scb->wait & BTA_AV_WAIT_ROLE_SW_RES_START)
+        p_scb->wait |= BTA_AV_WAIT_ROLE_SW_RETRY;
+
+    /* clear the masks set when the timer is started */
+    p_scb->wait &= ~(BTA_AV_WAIT_ROLE_SW_RES_OPEN|BTA_AV_WAIT_ROLE_SW_RES_START);
+
+    if (p_scb->q_tag == BTA_AV_Q_TAG_OPEN)
+    {
+        if (bta_av_switch_if_needed(p_scb) || !bta_av_link_role_ok(p_scb, A2D_SET_MULTL_BIT))
+        {
+            p_scb->wait |= BTA_AV_WAIT_ROLE_SW_RES_OPEN;
+        }
+        else
+        {
+            /* this should not happen in theory. Just in case...
+             * continue to do_disc_a2d */
+            switch_res = BTA_AV_RS_DONE;
+        }
+    }
+    else
+    {
+        /* report failure on OPEN */
+        switch_res = BTA_AV_RS_FAIL;
+    }
+
+    if (switch_res != BTA_AV_RS_NONE)
+    {
+        if (bta_av_cb.rs_idx == (p_scb->hdi + 1))
+        {
+            bta_av_cb.rs_idx = 0;
+        }
+        p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_RETRY;
+        p_scb->q_tag = 0;
+        p_buf->switch_res = switch_res;
+        bta_av_do_disc_a2d(p_scb, (tBTA_AV_DATA *)p_buf);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_role_res
+**
+** Description      Handle the role changed event
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_role_res (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
+{
+    BOOLEAN         initiator = FALSE;
+    tBTA_AV_START   start;
+    tBTA_AV_OPEN    av_open;
+
+    APPL_TRACE_DEBUG("bta_av_role_res q_tag:%d, wait:x%x, role:x%x", p_scb->q_tag, p_scb->wait, p_scb->role);
+    if (p_scb->role & BTA_AV_ROLE_START_INT)
+        initiator = TRUE;
+
+    if (p_scb->q_tag == BTA_AV_Q_TAG_START)
+    {
+        if (p_scb->wait & BTA_AV_WAIT_ROLE_SW_STARTED)
+        {
+            p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS;
+            if (p_data->role_res.hci_status != HCI_SUCCESS)
+            {
+                p_scb->role &= ~BTA_AV_ROLE_START_INT;
+                bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->peer_addr);
+                /* start failed because of role switch. */
+                start.chnl   = p_scb->chnl;
+                start.status = BTA_AV_FAIL_ROLE;
+                start.hndl   = p_scb->hndl;
+                start.initiator = initiator;
+                (*bta_av_cb.p_cback)(BTA_AV_START_EVT, (tBTA_AV *) &start);
+            }
+            else
+            {
+                bta_av_start_ok(p_scb, p_data);
+            }
+        }
+        else if (p_scb->wait & BTA_AV_WAIT_ROLE_SW_RES_START)
+            p_scb->wait |= BTA_AV_WAIT_ROLE_SW_FAILED;
+    }
+    else if (p_scb->q_tag == BTA_AV_Q_TAG_OPEN)
+    {
+        if (p_scb->wait & BTA_AV_WAIT_ROLE_SW_RES_OPEN)
+        {
+            p_scb->role &= ~BTA_AV_ROLE_START_INT;
+            p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS;
+
+            if (p_data->role_res.hci_status != HCI_SUCCESS)
+            {
+                /* Open failed because of role switch. */
+                bdcpy(av_open.bd_addr, p_scb->peer_addr);
+                av_open.chnl   = p_scb->chnl;
+                av_open.hndl   = p_scb->hndl;
+                start.status = BTA_AV_FAIL_ROLE;
+                if(p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SRC )
+                    av_open.sep = AVDT_TSEP_SNK;
+                else if(p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SNK )
+                    av_open.sep = AVDT_TSEP_SRC;
+                (*bta_av_cb.p_cback)(BTA_AV_OPEN_EVT, (tBTA_AV *)&av_open);
+            }
+            else
+            {
+                /* Continue av open process */
+                p_scb->q_info.open.switch_res = BTA_AV_RS_DONE;
+                bta_av_do_disc_a2d (p_scb, (tBTA_AV_DATA *)&(p_scb->q_info.open));
+            }
+        }
+        else
+        {
+            APPL_TRACE_WARNING ("Unexpected role switch event: q_tag = %d wait = %d", p_scb->q_tag, p_scb->wait);
+        }
+    }
+
+    APPL_TRACE_DEBUG("wait:x%x, role:x%x", p_scb->wait, p_scb->role);
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_delay_co
+**
+** Description      Call the delay call-out function to report the delay report
+**                  from SNK
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_delay_co (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
+{
+    p_scb->p_cos->delay(p_scb->hndl, p_data->str_msg.msg.delay_rpt_cmd.delay);
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_do_disc_a2d
+**
+** Description      Do service discovery for A2DP.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_do_disc_a2d (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
+{
+    BOOLEAN     ok_continue = FALSE;
+    tA2D_SDP_DB_PARAMS  db_params;
+    UINT16              attr_list[] = {ATTR_ID_SERVICE_CLASS_ID_LIST,
+                                       ATTR_ID_PROTOCOL_DESC_LIST,
+                                       ATTR_ID_BT_PROFILE_DESC_LIST};
+    UINT16 sdp_uuid = 0; /* UUID for which SDP has to be done */
+
+    APPL_TRACE_DEBUG("bta_av_do_disc_a2d use_rc: %d rs:%d, oc:%d",
+        p_data->api_open.use_rc, p_data->api_open.switch_res, bta_av_cb.audio_open_cnt);
+
+    memcpy (&(p_scb->open_api), &(p_data->api_open), sizeof(tBTA_AV_API_OPEN));
+
+    switch(p_data->api_open.switch_res)
+    {
+    case BTA_AV_RS_NONE:
+        if (bta_av_switch_if_needed(p_scb) || !bta_av_link_role_ok(p_scb, A2D_SET_MULTL_BIT))
+        {
+            /* waiting for role switch result. save the api to control block */
+            memcpy(&p_scb->q_info.open, &p_data->api_open, sizeof(tBTA_AV_API_OPEN));
+            p_scb->wait |= BTA_AV_WAIT_ROLE_SW_RES_OPEN;
+            p_scb->q_tag = BTA_AV_Q_TAG_OPEN;
+        }
+        else
+        {
+            ok_continue = TRUE;
+        }
+        break;
+
+    case BTA_AV_RS_FAIL:
+        /* report a new failure event  */
+        p_scb->open_status = BTA_AV_FAIL_ROLE;
+        bta_av_ssm_execute(p_scb, BTA_AV_SDP_DISC_FAIL_EVT, NULL);
+        break;
+
+    case BTA_AV_RS_OK:
+        p_data = (tBTA_AV_DATA *)&p_scb->q_info.open;
+        /* continue to open if link role is ok */
+        if (bta_av_link_role_ok(p_scb, A2D_SET_MULTL_BIT))
+        {
+            ok_continue = TRUE;
+        }
+        else
+        {
+            p_scb->wait |= BTA_AV_WAIT_ROLE_SW_RES_OPEN;
+        }
+        break;
+
+    case BTA_AV_RS_DONE:
+        ok_continue = TRUE;
+        break;
+    }
+
+    APPL_TRACE_DEBUG("ok_continue: %d wait:x%x, q_tag: %d", ok_continue, p_scb->wait, p_scb->q_tag);
+    if (!ok_continue)
+        return;
+
+    /* clear the role switch bits */
+    p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS;
+
+    if (p_scb->wait & BTA_AV_WAIT_CHECK_RC)
+    {
+        p_scb->wait &= ~BTA_AV_WAIT_CHECK_RC;
+        bta_sys_start_timer(p_scb->avrc_ct_timer, BTA_AV_RC_DISC_TIME_VAL,
+                            BTA_AV_AVRC_TIMER_EVT, p_scb->hndl);
+    }
+
+    if (bta_av_cb.features & BTA_AV_FEAT_MASTER)
+    {
+        L2CA_SetDesireRole(L2CAP_ROLE_DISALLOW_SWITCH);
+
+        if (bta_av_cb.audio_open_cnt == 1)
+        {
+            /* there's already an A2DP connection. do not allow switch */
+            bta_sys_clear_default_policy(BTA_ID_AV, HCI_ENABLE_MASTER_SLAVE_SWITCH);
+        }
+    }
+    /* store peer addr other parameters */
+    bta_av_save_addr(p_scb, p_data->api_open.bd_addr);
+    p_scb->sec_mask = p_data->api_open.sec_mask;
+    p_scb->use_rc = p_data->api_open.use_rc;
+
+    bta_sys_app_open(BTA_ID_AV, p_scb->app_id, p_scb->peer_addr);
+
+    if (p_scb->skip_sdp == TRUE)
+    {
+        tA2D_Service a2d_ser;
+        a2d_ser.avdt_version = AVDT_VERSION;
+        p_scb->skip_sdp = FALSE;
+        p_scb->uuid_int = p_data->api_open.uuid;
+        /* only one A2D find service is active at a time */
+        bta_av_cb.handle = p_scb->hndl;
+        APPL_TRACE_WARNING("%s: Skip Sdp for incoming A2dp connection", __func__);
+        bta_av_a2d_sdp_cback(TRUE, &a2d_ser);
+        return;
+    }
+
+    /* only one A2D find service is active at a time */
+    bta_av_cb.handle = p_scb->hndl;
+
+    /* set up parameters */
+    db_params.db_len = BTA_AV_DISC_BUF_SIZE;
+    db_params.num_attr = 3;
+    db_params.p_attrs = attr_list;
+    p_scb->uuid_int = p_data->api_open.uuid;
+    p_scb->sdp_discovery_started = TRUE;
+    if (p_scb->uuid_int == UUID_SERVCLASS_AUDIO_SINK)
+        sdp_uuid = UUID_SERVCLASS_AUDIO_SOURCE;
+    else if (p_scb->uuid_int == UUID_SERVCLASS_AUDIO_SOURCE)
+        sdp_uuid = UUID_SERVCLASS_AUDIO_SINK;
+
+    APPL_TRACE_DEBUG("%s: uuid_int 0x%x, Doing SDP For 0x%x", __func__,
+                    p_scb->uuid_int, sdp_uuid);
+    if (A2D_FindService(sdp_uuid, p_scb->peer_addr, &db_params,
+                    bta_av_a2d_sdp_cback) == A2D_SUCCESS)
+        return;
+
+    /* when the code reaches here, either the DB is NULL
+     * or A2D_FindService is not successful */
+    bta_av_a2d_sdp_cback(FALSE, NULL);
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_cleanup
+**
+** Description      cleanup AV stream control block.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_cleanup(tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
+{
+    tBTA_AV_CONN_CHG msg;
+    UINT8 role = BTA_AV_ROLE_AD_INT;
+    UNUSED(p_data);
+
+    APPL_TRACE_DEBUG("bta_av_cleanup");
+
+    /* free any buffers */
+    osi_free_and_reset((void **)&p_scb->p_cap);
+    p_scb->sdp_discovery_started = FALSE;
+    p_scb->avdt_version = 0;
+
+    /* initialize some control block variables */
+    p_scb->open_status = BTA_AV_SUCCESS;
+
+    /* if de-registering shut everything down */
+    msg.hdr.layer_specific  = p_scb->hndl;
+    p_scb->started  = FALSE;
+    p_scb->cong = FALSE;
+    p_scb->role = role;
+    p_scb->cur_psc_mask = 0;
+    p_scb->wait = 0;
+    p_scb->num_disc_snks = 0;
+    alarm_cancel(p_scb->avrc_ct_timer);
+
+    vendor_get_interface()->send_command(
+        (vendor_opcode_t)BT_VND_OP_A2DP_OFFLOAD_STOP, (void*)&p_scb->l2c_cid);
+    if (p_scb->offload_start_pending) {
+        tBTA_AV_STATUS status = BTA_AV_FAIL_STREAM;
+        (*bta_av_cb.p_cback)(BTA_AV_OFFLOAD_START_RSP_EVT, (tBTA_AV *)&status);
+    }
+    p_scb->offload_start_pending = FALSE;
+
+    p_scb->skip_sdp = FALSE;
+    if (p_scb->deregistring)
+    {
+        /* remove stream */
+        for (int i = 0; i < BTA_AV_MAX_SEPS; i++) {
+            if (p_scb->seps[i].av_handle)
+                AVDT_RemoveStream(p_scb->seps[i].av_handle);
+            p_scb->seps[i].av_handle = 0;
+        }
+
+        bta_av_dereg_comp((tBTA_AV_DATA *) &msg);
+    }
+    else
+    {
+        /* report stream closed to main SM */
+        msg.is_up = FALSE;
+        bdcpy(msg.peer_addr, p_scb->peer_addr);
+        bta_av_conn_chg((tBTA_AV_DATA *) &msg);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_free_sdb
+**
+** Description      Free service discovery db buffer.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_free_sdb(tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
+{
+    UNUSED(p_data);
+    p_scb->sdp_discovery_started = FALSE;
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_config_ind
+**
+** Description      Handle a stream configuration indication from the peer.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_config_ind (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
+{
+    tBTA_AV_CI_SETCONFIG setconfig;
+    tAVDT_SEP_INFO       *p_info;
+    tAVDT_CFG            *p_evt_cfg = &p_data->str_msg.cfg;
+    UINT8   psc_mask = (p_evt_cfg->psc_mask | p_scb->cfg.psc_mask);
+    UINT8 local_sep;    /* sep type of local handle on which connection was received */
+    tBTA_AV_STR_MSG  *p_msg = (tBTA_AV_STR_MSG *)p_data;
+    UNUSED(p_data);
+
+    local_sep = bta_av_get_scb_sep_type(p_scb, p_msg->handle);
+    p_scb->avdt_label = p_data->str_msg.msg.hdr.label;
+    memcpy(p_scb->cfg.codec_info, p_evt_cfg->codec_info, AVDT_CODEC_SIZE);
+    p_scb->codec_type = p_evt_cfg->codec_info[BTA_AV_CODEC_TYPE_IDX];
+    bta_av_save_addr(p_scb, p_data->str_msg.bd_addr);
+
+    /* Clear collision mask */
+    p_scb->coll_mask = 0;
+    alarm_cancel(bta_av_cb.accept_signalling_timer);
+
+    /* if no codec parameters in configuration, fail */
+    if ((p_evt_cfg->num_codec == 0) ||
+    /* or the peer requests for a service we do not support */
+        ((psc_mask != p_scb->cfg.psc_mask) &&
+        (psc_mask != (p_scb->cfg.psc_mask&~AVDT_PSC_DELAY_RPT))) )
+    {
+        setconfig.hndl      = p_scb->hndl; /* we may not need this */
+        setconfig.err_code  = AVDT_ERR_UNSUP_CFG;
+        bta_av_ssm_execute(p_scb, BTA_AV_CI_SETCONFIG_FAIL_EVT, (tBTA_AV_DATA *) &setconfig);
+    }
+    else
+    {
+        p_info = &p_scb->sep_info[0];
+        p_info->in_use = 0;
+        p_info->media_type = p_scb->media_type;
+        p_info->seid = p_data->str_msg.msg.config_ind.int_seid;
+
+        /* Sep type of Peer will be oppsite role to our local sep */
+        if (local_sep == AVDT_TSEP_SRC)
+            p_info->tsep = AVDT_TSEP_SNK;
+        else if (local_sep == AVDT_TSEP_SNK)
+            p_info->tsep = AVDT_TSEP_SRC;
+
+        p_scb->role      |= BTA_AV_ROLE_AD_ACP;
+        p_scb->cur_psc_mask = p_evt_cfg->psc_mask;
+        if (bta_av_cb.features & BTA_AV_FEAT_RCTG)
+            p_scb->use_rc = TRUE;
+        else
+            p_scb->use_rc = FALSE;
+
+        p_scb->num_seps  = 1;
+        p_scb->sep_info_idx = 0;
+        APPL_TRACE_DEBUG("bta_av_config_ind: SEID: %d use_rc: %d cur_psc_mask:0x%x", p_info->seid, p_scb->use_rc, p_scb->cur_psc_mask);
+        /*  in case of A2DP SINK this is the first time peer data is being sent to co functions */
+        if (local_sep == AVDT_TSEP_SNK)
+        {
+            p_scb->p_cos->setcfg(p_scb->hndl, p_scb->codec_type,
+                             p_evt_cfg->codec_info,
+                             p_info->seid,
+                             p_scb->peer_addr,
+                             p_evt_cfg->num_protect,
+                             p_evt_cfg->protect_info,
+                             AVDT_TSEP_SNK,
+                             p_msg->handle);
+        }
+        else
+        {
+            p_scb->p_cos->setcfg(p_scb->hndl, p_scb->codec_type,
+                             p_evt_cfg->codec_info,
+                             p_info->seid,
+                             p_scb->peer_addr,
+                             p_evt_cfg->num_protect,
+                             p_evt_cfg->protect_info,
+                             AVDT_TSEP_SRC,
+                             p_msg->handle);
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_disconnect_req
+**
+** Description      Disconnect AVDTP connection.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_disconnect_req (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
+{
+    tBTA_AV_RCB *p_rcb;
+    UNUSED(p_data);
+
+    APPL_TRACE_DEBUG("%s conn_lcb: 0x%x", __func__, bta_av_cb.conn_lcb);
+
+    alarm_cancel(bta_av_cb.link_signalling_timer);
+    alarm_cancel(p_scb->avrc_ct_timer);
+
+    if (bta_av_cb.conn_lcb) {
+        p_rcb = bta_av_get_rcb_by_shdl((UINT8)(p_scb->hdi + 1));
+        if (p_rcb)
+            bta_av_del_rc(p_rcb);
+        AVDT_DisconnectReq(p_scb->peer_addr, bta_av_dt_cback[p_scb->hdi]);
+    } else {
+        bta_av_ssm_execute(p_scb, BTA_AV_AVDT_DISCONNECT_EVT, NULL);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_security_req
+**
+** Description      Send an AVDTP security request.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_security_req (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
+{
+    if (bta_av_cb.features & BTA_AV_FEAT_PROTECT)
+    {
+        AVDT_SecurityReq(p_scb->avdt_handle, p_data->api_protect_req.p_data,
+                         p_data->api_protect_req.len);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_security_rsp
+**
+** Description      Send an AVDTP security response.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_security_rsp (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
+{
+    if (bta_av_cb.features & BTA_AV_FEAT_PROTECT)
+    {
+        AVDT_SecurityRsp(p_scb->avdt_handle, p_scb->avdt_label, p_data->api_protect_rsp.error_code,
+                         p_data->api_protect_rsp.p_data, p_data->api_protect_rsp.len);
+    }
+    else
+    {
+        AVDT_SecurityRsp(p_scb->avdt_handle, p_scb->avdt_label, AVDT_ERR_NSC,
+                     NULL, 0);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_setconfig_rsp
+**
+** Description      setconfig is OK
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_setconfig_rsp (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
+{
+    UINT8   num = p_data->ci_setconfig.num_seid + 1;
+    UINT8   avdt_handle = p_data->ci_setconfig.avdt_handle;
+    UINT8   *p_seid = p_data->ci_setconfig.p_seid;
+    int     i;
+    UINT8   local_sep;
+
+    /* we like this codec_type. find the sep_idx */
+    local_sep = bta_av_get_scb_sep_type(p_scb,avdt_handle);
+    bta_av_adjust_seps_idx(p_scb, avdt_handle);
+    APPL_TRACE_DEBUG("bta_av_setconfig_rsp: sep_idx: %d cur_psc_mask:0x%x", p_scb->sep_idx, p_scb->cur_psc_mask);
+
+    if ((AVDT_TSEP_SNK == local_sep) && (p_data->ci_setconfig.err_code == AVDT_SUCCESS) &&
+                                     (p_scb->seps[p_scb->sep_idx].p_app_data_cback != NULL)) {
+        tBTA_AV_MEDIA av_sink_codec_info;
+        memcpy(av_sink_codec_info.avk_config.bd_addr,p_scb->peer_addr,sizeof(BD_ADDR));
+        av_sink_codec_info.avk_config.codec_info = p_scb->cfg.codec_info;
+        p_scb->seps[p_scb->sep_idx].p_app_data_cback(BTA_AV_MEDIA_SINK_CFG_EVT,
+                                              &av_sink_codec_info);
+    }
+
+
+    AVDT_ConfigRsp(p_scb->avdt_handle, p_scb->avdt_label, p_data->ci_setconfig.err_code,
+                   p_data->ci_setconfig.category);
+
+    alarm_cancel(bta_av_cb.link_signalling_timer);
+
+    if(p_data->ci_setconfig.err_code == AVDT_SUCCESS)
+    {
+        p_scb->wait = BTA_AV_WAIT_ACP_CAPS_ON;
+        if(p_data->ci_setconfig.recfg_needed)
+            p_scb->role |= BTA_AV_ROLE_SUSPEND_OPT;
+        APPL_TRACE_DEBUG("bta_av_setconfig_rsp recfg_needed:%d role:x%x num:%d",
+            p_data->ci_setconfig.recfg_needed, p_scb->role, num);
+        /* callout module tells BTA the number of "good" SEPs and their SEIDs.
+         * getcap on these SEID */
+        p_scb->num_seps = num;
+
+        if (p_scb->cur_psc_mask & AVDT_PSC_DELAY_RPT)
+            p_scb->avdt_version = AVDT_VERSION_SYNC;
+
+
+        if (p_scb->codec_type == BTA_AV_CODEC_SBC || num > 1)
+        {
+            /* if SBC is used by the SNK as INT, discover req is not sent in bta_av_config_ind.
+                       * call disc_res now */
+           /* this is called in A2DP SRC path only, In case of SINK we don't need it  */
+            if (local_sep == AVDT_TSEP_SRC)
+                p_scb->p_cos->disc_res(p_scb->hndl, num, num, 0, p_scb->peer_addr,
+                                                      UUID_SERVCLASS_AUDIO_SOURCE);
+        }
+        else
+        {
+            /* we do not know the peer device and it is using non-SBC codec
+             * we need to know all the SEPs on SNK */
+            bta_av_discover_req(p_scb, NULL);
+            return;
+        }
+
+        for (i = 1; i < num; i++)
+        {
+            APPL_TRACE_DEBUG("sep_info[%d] SEID: %d", i, p_seid[i-1]);
+            /* initialize the sep_info[] to get capabilities */
+            p_scb->sep_info[i].in_use = FALSE;
+            p_scb->sep_info[i].tsep = AVDT_TSEP_SNK;
+            p_scb->sep_info[i].media_type = p_scb->media_type;
+            p_scb->sep_info[i].seid = p_seid[i-1];
+        }
+
+        /* only in case of local sep as SRC we need to look for other SEPs, In case of SINK we don't */
+        if (local_sep == AVDT_TSEP_SRC)
+        {
+            /* Make sure UUID has been initialized... */
+            if (p_scb->uuid_int == 0)
+                p_scb->uuid_int = p_scb->open_api.uuid;
+            bta_av_next_getcap(p_scb, p_data);
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_str_opened
+**
+** Description      Stream opened OK (incoming/outgoing).
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_str_opened (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
+{
+    tBTA_AV_CONN_CHG msg;
+    tBTA_AV_OPEN    open;
+    UINT8 *p;
+    UINT16 mtu;
+
+    msg.hdr.layer_specific = p_scb->hndl;
+    msg.is_up = TRUE;
+    bdcpy(msg.peer_addr, p_scb->peer_addr);
+    p_scb->l2c_cid      = AVDT_GetL2CapChannel(p_scb->avdt_handle);
+    bta_av_conn_chg((tBTA_AV_DATA *) &msg);
+    /* set the congestion flag, so AV would not send media packets by accident */
+    p_scb->cong = TRUE;
+    p_scb->offload_start_pending = FALSE;
+
+
+    p_scb->stream_mtu = p_data->str_msg.msg.open_ind.peer_mtu - AVDT_MEDIA_HDR_SIZE;
+    mtu = bta_av_chk_mtu(p_scb, p_scb->stream_mtu);
+    APPL_TRACE_DEBUG("bta_av_str_opened l2c_cid: 0x%x stream_mtu: %d mtu: %d",
+        p_scb->l2c_cid, p_scb->stream_mtu, mtu);
+    if(mtu == 0 || mtu > p_scb->stream_mtu)
+        mtu = p_scb->stream_mtu;
+
+    /* Set the media channel as medium priority */
+    L2CA_SetTxPriority(p_scb->l2c_cid, L2CAP_CHNL_PRIORITY_MEDIUM);
+    L2CA_SetChnlFlushability (p_scb->l2c_cid, TRUE);
+
+    bta_sys_conn_open(BTA_ID_AV, p_scb->app_id, p_scb->peer_addr);
+    memset(&p_scb->q_info, 0, sizeof(tBTA_AV_Q_INFO));
+
+    p_scb->l2c_bufs = 0;
+    p_scb->p_cos->open(p_scb->hndl,
+        p_scb->codec_type, p_scb->cfg.codec_info, mtu);
+
+    {
+        /* TODO check if other audio channel is open.
+         * If yes, check if reconfig is needed
+         * Rigt now we do not do this kind of checking.
+         * BTA-AV is INT for 2nd audio connection.
+         * The application needs to make sure the current codec_info is proper.
+         * If one audio connection is open and another SNK attempts to connect to AV,
+         * the connection will be rejected.
+         */
+        /* check if other audio channel is started. If yes, start */
+        bdcpy(open.bd_addr, p_scb->peer_addr);
+        open.chnl   = p_scb->chnl;
+        open.hndl   = p_scb->hndl;
+        open.status = BTA_AV_SUCCESS;
+        open.starting = bta_av_chk_start(p_scb);
+        open.edr    = 0;
+        if( NULL != (p = BTM_ReadRemoteFeatures(p_scb->peer_addr)))
+        {
+            if(HCI_EDR_ACL_2MPS_SUPPORTED(p))
+                open.edr |= BTA_AV_EDR_2MBPS;
+            if(HCI_EDR_ACL_3MPS_SUPPORTED(p))
+                open.edr |= BTA_AV_EDR_3MBPS;
+        }
+#if( defined BTA_AR_INCLUDED ) && (BTA_AR_INCLUDED == TRUE)
+        bta_ar_avdt_conn(BTA_ID_AV, open.bd_addr);
+#endif
+        if (p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SRC )
+            open.sep = AVDT_TSEP_SNK;
+        else if (p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SNK )
+            open.sep = AVDT_TSEP_SRC;
+
+        (*bta_av_cb.p_cback)(BTA_AV_OPEN_EVT, (tBTA_AV *) &open);
+        if(open.starting)
+        {
+            bta_av_ssm_execute(p_scb, BTA_AV_AP_START_EVT, NULL);
+        }
+    }
+
+    // This code is used to pass PTS TC for AVDTP ABORT
+    char value[PROPERTY_VALUE_MAX] = {0};
+    if ((osi_property_get("bluetooth.pts.force_a2dp_abort", value, "false"))
+        && (!strcmp(value, "true")))
+    {
+        APPL_TRACE_ERROR ("%s: Calling AVDT_AbortReq", __func__);
+        AVDT_AbortReq(p_scb->avdt_handle);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_security_ind
+**
+** Description      Handle an AVDTP security indication.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_security_ind (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
+{
+    tBTA_AV_PROTECT_REQ protect_req;
+
+    p_scb->avdt_label = p_data->str_msg.msg.hdr.label;
+
+    if (bta_av_cb.features & BTA_AV_FEAT_PROTECT)
+    {
+        protect_req.chnl    = p_scb->chnl;
+        protect_req.hndl    = p_scb->hndl;
+        /*
+        APPL_TRACE_EVENT("sec ind handle: x%x", protect_req.hndl);
+        */
+        protect_req.p_data  = p_data->str_msg.msg.security_ind.p_data;
+        protect_req.len     = p_data->str_msg.msg.security_ind.len;
+
+        (*bta_av_cb.p_cback)(BTA_AV_PROTECT_REQ_EVT, (tBTA_AV *) &protect_req);
+    }
+    /* app doesn't support security indication; respond with failure */
+    else
+    {
+        AVDT_SecurityRsp(p_scb->avdt_handle, p_scb->avdt_label, AVDT_ERR_NSC, NULL, 0);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_security_cfm
+**
+** Description      Handle an AVDTP security confirm.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_security_cfm (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
+{
+    tBTA_AV_PROTECT_RSP protect_rsp;
+
+    if (bta_av_cb.features & BTA_AV_FEAT_PROTECT)
+    {
+        protect_rsp.chnl    = p_scb->chnl;
+        protect_rsp.hndl    = p_scb->hndl;
+        protect_rsp.p_data  = p_data->str_msg.msg.security_cfm.p_data;
+        protect_rsp.len     = p_data->str_msg.msg.security_cfm.len;
+        protect_rsp.err_code= p_data->str_msg.msg.hdr.err_code;
+
+        (*bta_av_cb.p_cback)(BTA_AV_PROTECT_RSP_EVT, (tBTA_AV *) &protect_rsp);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_do_close
+**
+** Description      Close stream.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_do_close (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
+{
+    UNUSED(p_data);
+
+    /* stop stream if started */
+    if (p_scb->co_started)
+    {
+        bta_av_str_stopped(p_scb, NULL);
+    }
+    alarm_cancel(bta_av_cb.link_signalling_timer);
+
+    /* close stream */
+    p_scb->started = FALSE;
+
+    /* drop the buffers queued in L2CAP */
+    L2CA_FlushChannel (p_scb->l2c_cid, L2CAP_FLUSH_CHANS_ALL);
+
+    AVDT_CloseReq(p_scb->avdt_handle);
+    /* just in case that the link is congested, link is flow controled by peer or
+     * for whatever reason the the close request can not be sent in time.
+     * when this timer expires, AVDT_DisconnectReq will be called to disconnect the link
+     */
+    bta_sys_start_timer(p_scb->avrc_ct_timer, BTA_AV_CLOSE_REQ_TIME_VAL,
+                        BTA_AV_API_CLOSE_EVT, p_scb->hndl);
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_connect_req
+**
+** Description      Connect AVDTP connection.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_connect_req(tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
+{
+    UNUSED(p_data);
+
+    p_scb->sdp_discovery_started = FALSE;
+    if (p_scb->coll_mask & BTA_AV_COLL_INC_TMR)
+    {
+        /* SNK initiated L2C connection while SRC was doing SDP.    */
+        /* Wait until timeout to check if SNK starts signalling.    */
+        APPL_TRACE_EVENT("bta_av_connect_req: coll_mask = 0x%2X", p_scb->coll_mask);
+        return;
+    }
+
+    AVDT_ConnectReq(p_scb->peer_addr, p_scb->sec_mask, bta_av_dt_cback[p_scb->hdi]);
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_sdp_failed
+**
+** Description      Service discovery failed.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_sdp_failed(tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
+{
+    if (!p_scb->open_status)
+        p_scb->open_status = BTA_AV_FAIL_SDP;
+
+    p_scb->sdp_discovery_started = FALSE;
+    bta_av_str_closed(p_scb, p_data);
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_disc_results
+**
+** Description      Handle the AVDTP discover results.  Search through the
+**                  results and find the first available stream, and get
+**                  its capabilities.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_disc_results (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
+{
+    UINT8 num_snks = 0, num_srcs =0, i;
+    /* our uuid in case we initiate connection */
+    UINT16 uuid_int = p_scb->uuid_int;
+
+    APPL_TRACE_DEBUG(" initiator UUID 0x%x", uuid_int);
+    /* store number of stream endpoints returned */
+    p_scb->num_seps = p_data->str_msg.msg.discover_cfm.num_seps;
+
+    for (i = 0; i < p_scb->num_seps; i++)
+    {
+        /* steam not in use, is a sink, and is audio */
+        if ((p_scb->sep_info[i].in_use == FALSE) &&
+            (p_scb->sep_info[i].media_type == p_scb->media_type))
+        {
+            if((p_scb->sep_info[i].tsep == AVDT_TSEP_SNK) &&
+               (uuid_int == UUID_SERVCLASS_AUDIO_SOURCE))
+                num_snks++;
+
+            if((p_scb->sep_info[i].tsep == AVDT_TSEP_SRC) &&
+               (uuid_int == UUID_SERVCLASS_AUDIO_SINK))
+                num_srcs++;
+
+        }
+    }
+
+    p_scb->p_cos->disc_res(p_scb->hndl, p_scb->num_seps, num_snks, num_srcs, p_scb->peer_addr,
+                                                                                    uuid_int);
+    p_scb->num_disc_snks = num_snks;
+    p_scb->num_disc_srcs = num_srcs;
+
+    /* if we got any */
+    if (p_scb->num_seps > 0)
+    {
+        /* initialize index into discovery results */
+        p_scb->sep_info_idx = 0;
+
+        /* get the capabilities of the first available stream */
+        bta_av_next_getcap(p_scb, p_data);
+    }
+    /* else we got discover response but with no streams; we're done */
+    else
+    {
+        bta_av_ssm_execute(p_scb, BTA_AV_STR_DISC_FAIL_EVT, p_data);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_disc_res_as_acp
+**
+** Description      Handle the AVDTP discover results.  Search through the
+**                  results and find the first available stream, and get
+**                  its capabilities.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_disc_res_as_acp (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
+{
+    UINT8 num_snks = 0, i;
+
+    /* store number of stream endpoints returned */
+    p_scb->num_seps = p_data->str_msg.msg.discover_cfm.num_seps;
+
+
+
+    for (i = 0; i < p_scb->num_seps; i++)
+    {
+        /* steam is a sink, and is audio */
+        if ((p_scb->sep_info[i].tsep == AVDT_TSEP_SNK) &&
+            (p_scb->sep_info[i].media_type == p_scb->media_type))
+        {
+            p_scb->sep_info[i].in_use = FALSE;
+            num_snks++;
+        }
+    }
+    p_scb->p_cos->disc_res(p_scb->hndl, p_scb->num_seps, num_snks, 0, p_scb->peer_addr,
+                           UUID_SERVCLASS_AUDIO_SOURCE);
+    p_scb->num_disc_snks = num_snks;
+    p_scb->num_disc_srcs = 0;
+
+    /* if we got any */
+    if (p_scb->num_seps > 0)
+    {
+        /* initialize index into discovery results */
+        p_scb->sep_info_idx = 0;
+
+        /* get the capabilities of the first available stream */
+        bta_av_next_getcap(p_scb, p_data);
+    }
+    /* else we got discover response but with no streams; we're done */
+    else
+    {
+        bta_av_ssm_execute(p_scb, BTA_AV_STR_DISC_FAIL_EVT, p_data);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_save_caps
+**
+** Description      report the SNK SEP capabilities to application
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_save_caps(tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
+{
+    tAVDT_CFG   cfg;
+    tAVDT_SEP_INFO  *p_info = &p_scb->sep_info[p_scb->sep_info_idx];
+    UINT8       old_wait = p_scb->wait;
+    BOOLEAN     getcap_done = FALSE;
+
+    APPL_TRACE_DEBUG("bta_av_save_caps num_seps:%d sep_info_idx:%d wait:x%x",
+        p_scb->num_seps, p_scb->sep_info_idx, p_scb->wait);
+    memcpy(&cfg, p_scb->p_cap, sizeof(tAVDT_CFG));
+    /* let application know the capability of the SNK */
+    p_scb->p_cos->getcfg(p_scb->hndl, cfg.codec_info[BTA_AV_CODEC_TYPE_IDX],
+        cfg.codec_info, &p_scb->sep_info_idx, p_info->seid,
+        &cfg.num_protect, cfg.protect_info);
+
+    p_scb->sep_info_idx++;
+    if(p_scb->num_seps > p_scb->sep_info_idx)
+    {
+        /* Some devices have seps at the end of the discover list, which is not */
+        /* matching media type(video not audio).                                */
+        /* In this case, we are done with getcap without sending another        */
+        /* request to AVDT.                                                     */
+        if (!bta_av_next_getcap(p_scb, p_data))
+            getcap_done = TRUE;
+    }
+    else
+        getcap_done = TRUE;
+
+    if (getcap_done)
+    {
+        /* we are done getting capabilities. restore the p_cb->sep_info_idx */
+        p_scb->sep_info_idx = 0;
+        p_scb->wait &= ~(BTA_AV_WAIT_ACP_CAPS_ON|BTA_AV_WAIT_ACP_CAPS_STARTED);
+        if (old_wait & BTA_AV_WAIT_ACP_CAPS_STARTED)
+        {
+            bta_av_start_ok (p_scb, NULL);
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_set_use_rc
+**
+** Description      set to use AVRC for this stream control block.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_set_use_rc (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
+{
+    UNUSED(p_data);
+
+    p_scb->use_rc = TRUE;
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_cco_close
+**
+** Description      call close call-out function.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_cco_close (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
+{
+    UINT16 mtu;
+    UNUSED(p_data);
+
+    mtu = bta_av_chk_mtu(p_scb, BTA_AV_MAX_A2DP_MTU);
+
+    p_scb->p_cos->close(p_scb->hndl, p_scb->codec_type, mtu);
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_open_failed
+**
+** Description      Failed to open an AVDT stream
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_open_failed (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
+{
+
+    BOOLEAN is_av_opened = FALSE;
+    tBTA_AV_SCB * p_opened_scb = NULL;
+    UINT8 idx;
+    tBTA_AV_OPEN    open;
+
+    APPL_TRACE_DEBUG("bta_av_open_failed");
+    p_scb->open_status = BTA_AV_FAIL_STREAM;
+    bta_av_cco_close(p_scb, p_data);
+
+    /* check whether there is already an opened audio or video connection with the same device */
+    for (idx = 0; (idx < BTA_AV_NUM_STRS) && (is_av_opened == FALSE); idx++ )
+    {
+        p_opened_scb = bta_av_cb.p_scb[idx];
+        if (p_opened_scb && (p_opened_scb->state == BTA_AV_OPEN_SST) && (!bdcmp(p_opened_scb->peer_addr,p_scb->peer_addr )) )
+            is_av_opened = TRUE;
+
+    }
+
+    /* if there is already an active AV connnection with the same bd_addr,
+       don't send disconnect req, just report the open event with BTA_AV_FAIL_GET_CAP status */
+    if (is_av_opened == TRUE)
+    {
+        bdcpy(open.bd_addr, p_scb->peer_addr);
+        open.chnl   = p_scb->chnl;
+        open.hndl   = p_scb->hndl;
+        open.status = BTA_AV_FAIL_GET_CAP;
+        open.starting = bta_av_chk_start(p_scb);
+        open.edr    = 0;
+        /* set the state back to initial state */
+        bta_av_set_scb_sst_init(p_scb);
+
+        if (p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SRC )
+            open.sep = AVDT_TSEP_SNK;
+        else if (p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SNK )
+            open.sep = AVDT_TSEP_SRC;
+
+        (*bta_av_cb.p_cback)(BTA_AV_OPEN_EVT, (tBTA_AV *) &open);
+
+    }
+    else
+    {
+        AVDT_DisconnectReq(p_scb->peer_addr, bta_av_dt_cback[p_scb->hdi]);
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         bta_av_getcap_results
+**
+** Description      Handle the AVDTP get capabilities results.  Check the codec
+**                  type and see if it matches ours.  If it does not, get the
+**                  capabilities of the next stream, if any.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_getcap_results (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
+{
+    tAVDT_CFG   cfg;
+    UINT8       media_type;
+    tAVDT_SEP_INFO  *p_info = &p_scb->sep_info[p_scb->sep_info_idx];
+    UINT16 uuid_int; /* UUID for which connection was initiatied */
+
+    memcpy(&cfg, &p_scb->cfg, sizeof(tAVDT_CFG));
+    cfg.num_codec = 1;
+    cfg.num_protect = p_scb->p_cap->num_protect;
+    memcpy(cfg.codec_info, p_scb->p_cap->codec_info, AVDT_CODEC_SIZE);
+    memcpy(cfg.protect_info, p_scb->p_cap->protect_info, AVDT_PROTECT_SIZE);
+    media_type = p_scb->p_cap->codec_info[BTA_AV_MEDIA_TYPE_IDX] >> 4;
+
+    APPL_TRACE_DEBUG("num_codec %d", p_scb->p_cap->num_codec);
+    APPL_TRACE_DEBUG("media type x%x, x%x", media_type, p_scb->media_type);
+#if AVDT_MULTIPLEXING == TRUE
+    APPL_TRACE_DEBUG("mux x%x, x%x", cfg.mux_mask, p_scb->p_cap->mux_mask);
+#endif
+
+    /* if codec present and we get a codec configuration */
+    if ((p_scb->p_cap->num_codec != 0) &&
+        (media_type == p_scb->media_type) &&
+        (p_scb->p_cos->getcfg(p_scb->hndl, p_scb->p_cap->codec_info[BTA_AV_CODEC_TYPE_IDX],
+            cfg.codec_info, &p_scb->sep_info_idx, p_info->seid,
+            &cfg.num_protect, cfg.protect_info) == 0))
+    {
+#if AVDT_MULTIPLEXING == TRUE
+        cfg.mux_mask &= p_scb->p_cap->mux_mask;
+        APPL_TRACE_DEBUG("mux_mask used x%x", cfg.mux_mask);
+#endif
+        /* save copy of codec type and configuration */
+        p_scb->codec_type = cfg.codec_info[BTA_AV_CODEC_TYPE_IDX];
+        memcpy(&p_scb->cfg, &cfg, sizeof(tAVDT_CFG));
+
+        uuid_int = p_scb->uuid_int;
+        APPL_TRACE_DEBUG(" initiator UUID = 0x%x ", uuid_int);
+        if (uuid_int == UUID_SERVCLASS_AUDIO_SOURCE)
+            bta_av_adjust_seps_idx(p_scb, bta_av_get_scb_handle(p_scb, AVDT_TSEP_SRC));
+        else if (uuid_int == UUID_SERVCLASS_AUDIO_SINK)
+            bta_av_adjust_seps_idx(p_scb, bta_av_get_scb_handle(p_scb, AVDT_TSEP_SNK));
+
+        /* use only the services peer supports */
+        cfg.psc_mask &= p_scb->p_cap->psc_mask;
+        p_scb->cur_psc_mask = cfg.psc_mask;
+
+        if ((uuid_int == UUID_SERVCLASS_AUDIO_SINK) &&
+            (p_scb->seps[p_scb->sep_idx].p_app_data_cback != NULL))
+        {
+            APPL_TRACE_DEBUG("%s Configure Decoder for Sink Connection.", __func__);
+            tBTA_AV_MEDIA av_sink_codec_info;
+            memcpy(av_sink_codec_info.avk_config.bd_addr,p_scb->peer_addr,sizeof(BD_ADDR));
+            av_sink_codec_info.avk_config.codec_info = p_scb->cfg.codec_info;
+            p_scb->seps[p_scb->sep_idx].p_app_data_cback(BTA_AV_MEDIA_SINK_CFG_EVT,
+                                                         &av_sink_codec_info);
+        }
+
+        if ((uuid_int == UUID_SERVCLASS_AUDIO_SOURCE) &&
+            (cfg.codec_info[SBC_MAX_BITPOOL_OFFSET] > SBC_MAX_BITPOOL))
+        {
+            APPL_TRACE_WARNING("%s max bitpool length received for SBC is out of range."
+                    "Clamping the codec bitpool configuration from %d to %d.", __func__,
+                    cfg.codec_info[SBC_MAX_BITPOOL_OFFSET], SBC_MAX_BITPOOL);
+            cfg.codec_info[SBC_MAX_BITPOOL_OFFSET] = SBC_MAX_BITPOOL;
+        }
+
+        /* open the stream */
+        AVDT_OpenReq(p_scb->seps[p_scb->sep_idx].av_handle, p_scb->peer_addr,
+                     p_scb->sep_info[p_scb->sep_info_idx].seid, &cfg);
+
+        if (!bta_av_is_rcfg_sst(p_scb))
+        {
+            /* free capabilities buffer */
+            osi_free_and_reset((void **)&p_scb->p_cap);
+        }
+    }
+    else
+    {
+        /* try the next stream, if any */
+        p_scb->sep_info_idx++;
+        bta_av_next_getcap(p_scb, p_data);
+    }
+
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_setconfig_rej
+**
+** Description      Send AVDTP set config reject.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_setconfig_rej (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
+{
+    tBTA_AV_REJECT reject;
+    UINT8   avdt_handle = p_data->ci_setconfig.avdt_handle;
+
+    bta_av_adjust_seps_idx(p_scb, avdt_handle);
+    APPL_TRACE_DEBUG("bta_av_setconfig_rej: sep_idx: %d",p_scb->sep_idx);
+    AVDT_ConfigRsp(p_scb->avdt_handle, p_scb->avdt_label, AVDT_ERR_UNSUP_CFG, 0);
+
+    bdcpy(reject.bd_addr, p_data->str_msg.bd_addr);
+    reject.hndl = p_scb->hndl;
+    (*bta_av_cb.p_cback)(BTA_AV_REJECT_EVT, (tBTA_AV *) &reject);
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_discover_req
+**
+** Description      Send an AVDTP discover request to the peer.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_discover_req (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
+{
+    UNUSED(p_data);
+
+    /* send avdtp discover request */
+
+    AVDT_DiscoverReq(p_scb->peer_addr, p_scb->sep_info, BTA_AV_NUM_SEPS, bta_av_dt_cback[p_scb->hdi]);
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_conn_failed
+**
+** Description      AVDTP connection failed.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_conn_failed (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
+{
+    p_scb->open_status = BTA_AV_FAIL_STREAM;
+    bta_av_str_closed(p_scb, p_data);
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_do_start
+**
+** Description      Start stream.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_do_start (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
+{
+    UINT8 policy = HCI_ENABLE_SNIFF_MODE;
+    UINT8       cur_role;
+
+    APPL_TRACE_DEBUG("bta_av_do_start sco_occupied:%d, role:x%x, started:%d", bta_av_cb.sco_occupied, p_scb->role, p_scb->started);
+    if (bta_av_cb.sco_occupied)
+    {
+        bta_av_start_failed(p_scb, p_data);
+        return;
+    }
+
+    /* disallow role switch during streaming, only if we are the master role
+     * i.e. allow role switch, if we are slave.
+     * It would not hurt us, if the peer device wants us to be master */
+    if ((BTM_GetRole (p_scb->peer_addr, &cur_role) == BTM_SUCCESS) &&
+        (cur_role == BTM_ROLE_MASTER) )
+    {
+        policy |= HCI_ENABLE_MASTER_SLAVE_SWITCH;
+    }
+
+    bta_sys_clear_policy(BTA_ID_AV, policy, p_scb->peer_addr);
+
+    if ((p_scb->started == FALSE) && ((p_scb->role & BTA_AV_ROLE_START_INT) == 0))
+    {
+        p_scb->role |= BTA_AV_ROLE_START_INT;
+        bta_sys_busy(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->peer_addr);
+
+        AVDT_StartReq(&p_scb->avdt_handle, 1);
+    }
+    else if (p_scb->started)
+    {
+        p_scb->role |= BTA_AV_ROLE_START_INT;
+        if ( p_scb->wait == 0 ) {
+            if (p_scb->role & BTA_AV_ROLE_SUSPEND) {
+                notify_start_failed(p_scb);
+            } else {
+                bta_av_start_ok(p_scb, NULL);
+            }
+        }
+    }
+    APPL_TRACE_DEBUG("started %d role:x%x", p_scb->started, p_scb->role);
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_str_stopped
+**
+** Description      Stream stopped.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_str_stopped (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
+{
+    tBTA_AV_SUSPEND suspend_rsp;
+    UINT8   start = p_scb->started;
+    BOOLEAN sus_evt = TRUE;
+    BT_HDR  *p_buf;
+    UINT8 policy = HCI_ENABLE_SNIFF_MODE;
+
+    APPL_TRACE_ERROR("bta_av_str_stopped:audio_open_cnt=%d, p_data %x",
+            bta_av_cb.audio_open_cnt, p_data);
+
+    bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->peer_addr);
+    if ((bta_av_cb.features & BTA_AV_FEAT_MASTER) == 0 || bta_av_cb.audio_open_cnt == 1)
+        policy |= HCI_ENABLE_MASTER_SLAVE_SWITCH;
+    bta_sys_set_policy(BTA_ID_AV, policy, p_scb->peer_addr);
+
+    if (p_scb->co_started)
+    {
+      vendor_get_interface()->send_command(
+          (vendor_opcode_t)BT_VND_OP_A2DP_OFFLOAD_STOP,
+          (void*)&p_scb->l2c_cid);
+        if (p_scb->offload_start_pending) {
+            tBTA_AV_STATUS status = BTA_AV_FAIL_STREAM;
+            (*bta_av_cb.p_cback)(BTA_AV_OFFLOAD_START_RSP_EVT, (tBTA_AV *)&status);
+        }
+        p_scb->offload_start_pending = FALSE;
+
+        bta_av_stream_chg(p_scb, FALSE);
+        p_scb->co_started = FALSE;
+
+        p_scb->p_cos->stop(p_scb->hndl, p_scb->codec_type);
+        L2CA_SetFlushTimeout(p_scb->peer_addr, L2CAP_DEFAULT_FLUSH_TO);
+    }
+
+    /* if q_info.a2d_list is not empty, drop it now */
+    if (BTA_AV_CHNL_AUDIO == p_scb->chnl) {
+        while (!list_is_empty(p_scb->a2d_list))
+        {
+            p_buf = (BT_HDR *)list_front(p_scb->a2d_list);
+            list_remove(p_scb->a2d_list, p_buf);
+            osi_free(p_buf);
+        }
+
+    /* drop the audio buffers queued in L2CAP */
+        if (p_data && p_data->api_stop.flush)
+            L2CA_FlushChannel (p_scb->l2c_cid, L2CAP_FLUSH_CHANS_ALL);
+    }
+
+    suspend_rsp.chnl = p_scb->chnl;
+    suspend_rsp.hndl = p_scb->hndl;
+
+    if (p_data && p_data->api_stop.suspend)
+    {
+        APPL_TRACE_DEBUG("suspending: %d, sup:%d", start, p_scb->suspend_sup);
+        if ((start)  && (p_scb->suspend_sup))
+        {
+            sus_evt = FALSE;
+            p_scb->l2c_bufs = 0;
+            AVDT_SuspendReq(&p_scb->avdt_handle, 1);
+        }
+
+        /* send SUSPEND_EVT event only if not in reconfiguring state and sus_evt is TRUE*/
+        if ((sus_evt)&&(p_scb->state != BTA_AV_RCFG_SST))
+        {
+            suspend_rsp.status = BTA_AV_SUCCESS;
+            suspend_rsp.initiator = TRUE;
+            (*bta_av_cb.p_cback)(BTA_AV_SUSPEND_EVT, (tBTA_AV *) &suspend_rsp);
+        }
+    }
+    else
+    {
+        suspend_rsp.status = BTA_AV_SUCCESS;
+        suspend_rsp.initiator = TRUE;
+        APPL_TRACE_EVENT("bta_av_str_stopped status %d", suspend_rsp.status);
+
+        /* send STOP_EVT event only if not in reconfiguring state */
+        if (p_scb->state != BTA_AV_RCFG_SST)
+        {
+            (*bta_av_cb.p_cback)(BTA_AV_STOP_EVT, (tBTA_AV *) &suspend_rsp);
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_reconfig
+**
+** Description      process the reconfigure request.
+**                  save the parameter in control block and
+**                  suspend, reconfigure or close the stream
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_reconfig (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
+{
+    tAVDT_CFG   *p_cfg;
+    tBTA_AV_API_STOP    stop;
+    tBTA_AV_API_RCFG    *p_rcfg = &p_data->api_reconfig;
+
+    APPL_TRACE_DEBUG("bta_av_reconfig r:%d, s:%d idx: %d (o:%d)",
+        p_scb->recfg_sup, p_scb->suspend_sup,
+        p_scb->rcfg_idx, p_scb->sep_info_idx);
+
+    p_scb->num_recfg = 0;
+    /* store the new configuration in control block */
+    if (p_scb->p_cap == NULL)
+        p_scb->p_cap = (tAVDT_CFG *)osi_malloc(sizeof(tAVDT_CFG));
+    p_cfg = p_scb->p_cap;
+
+    alarm_cancel(p_scb->avrc_ct_timer);
+
+    memcpy(p_cfg, &p_scb->cfg, sizeof(tAVDT_CFG));
+    p_cfg->num_protect = p_rcfg->num_protect;
+    memcpy(p_cfg->codec_info, p_rcfg->codec_info, AVDT_CODEC_SIZE);
+    memcpy(p_cfg->protect_info, p_rcfg->p_protect_info, p_rcfg->num_protect);
+    p_scb->rcfg_idx = p_rcfg->sep_info_idx;
+    p_scb->p_cap->psc_mask = p_scb->cur_psc_mask;
+
+    /* if the requested index differs from the current one, we can only close/open */
+    if ((p_scb->rcfg_idx == p_scb->sep_info_idx) &&
+        (p_rcfg->suspend)&& (p_scb->recfg_sup) && (p_scb->suspend_sup))
+    {
+        if(p_scb->started)
+        {
+            stop.flush   = FALSE;
+            stop.suspend = TRUE;
+            bta_av_str_stopped(p_scb, (tBTA_AV_DATA *)&stop);
+        }
+        else
+        {
+            APPL_TRACE_DEBUG("Reconfig");
+            AVDT_ReconfigReq(p_scb->avdt_handle, p_scb->p_cap);
+            p_scb->p_cap->psc_mask = p_scb->cur_psc_mask;
+        }
+    }
+    else
+    {
+        /* close the stream */
+        APPL_TRACE_DEBUG("close/open num_protect: %d", p_cfg->num_protect);
+        if(p_scb->started)
+        {
+            bta_av_str_stopped(p_scb, NULL);
+            p_scb->started = FALSE;
+
+            /* drop the buffers queued in L2CAP */
+            L2CA_FlushChannel (p_scb->l2c_cid, L2CAP_FLUSH_CHANS_ALL);
+
+            AVDT_CloseReq(p_scb->avdt_handle);
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_data_path
+**
+** Description      Handle stream data path.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_data_path (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
+{
+    BT_HDR  *p_buf = NULL;
+    UINT32  data_len;
+    UINT32  timestamp;
+    BOOLEAN new_buf = FALSE;
+    UINT8   m_pt = 0x60 | p_scb->codec_type;
+    tAVDT_DATA_OPT_MASK     opt;
+    UNUSED(p_data);
+
+    if (p_scb->cong)
+    {
+        return;
+    }
+
+    /*
+    APPL_TRACE_ERROR("q: %d", p_scb->l2c_bufs);
+    */
+    //Always get the current number of bufs que'd up
+    p_scb->l2c_bufs = (UINT8)L2CA_FlushChannel (p_scb->l2c_cid, L2CAP_FLUSH_CHANS_GET);
+
+    if (!list_is_empty(p_scb->a2d_list)) {
+        p_buf = (BT_HDR *)list_front(p_scb->a2d_list);
+        list_remove(p_scb->a2d_list, p_buf);
+         /* use q_info.a2d data, read the timestamp */
+        timestamp = *(UINT32 *)(p_buf + 1);
+    }
+    else
+    {
+        new_buf = TRUE;
+        /* a2d_list empty, call co_data, dup data to other channels */
+        p_buf = (BT_HDR *)p_scb->p_cos->data(p_scb->codec_type, &data_len,
+                                         &timestamp);
+
+        if (p_buf)
+        {
+            /* use the offset area for the time stamp */
+            *(UINT32 *)(p_buf + 1) = timestamp;
+
+            /* dup the data to other channels */
+            bta_av_dup_audio_buf(p_scb, p_buf);
+        }
+    }
+
+    if(p_buf)
+    {
+        if(p_scb->l2c_bufs < (BTA_AV_QUEUE_DATA_CHK_NUM))
+        {
+            /* there's a buffer, just queue it to L2CAP */
+            /*  There's no need to increment it here, it is always read from L2CAP see above */
+            /* p_scb->l2c_bufs++; */
+            /*
+            APPL_TRACE_ERROR("qw: %d", p_scb->l2c_bufs);
+            */
+
+            /* opt is a bit mask, it could have several options set */
+            opt = AVDT_DATA_OPT_NONE;
+            if (p_scb->no_rtp_hdr)
+            {
+                opt |= AVDT_DATA_OPT_NO_RTP;
+            }
+
+            AVDT_WriteReqOpt(p_scb->avdt_handle, p_buf, timestamp, m_pt, opt);
+            p_scb->cong = TRUE;
+        }
+        else
+        {
+            /* there's a buffer, but L2CAP does not seem to be moving data */
+            if(new_buf)
+            {
+                /* just got this buffer from co_data,
+                 * put it in queue */
+                list_append(p_scb->a2d_list, p_buf);
+            }
+            else
+            {
+                /* just dequeue it from the a2d_list */
+                if (list_length(p_scb->a2d_list) < 3) {
+                    /* put it back to the queue */
+                    list_prepend(p_scb->a2d_list, p_buf);
+                }
+                else
+                {
+                    /* too many buffers in a2d_list, drop it. */
+                    bta_av_co_audio_drop(p_scb->hndl);
+                    osi_free(p_buf);
+                }
+            }
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_start_ok
+**
+** Description      Stream started.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_start_ok (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
+{
+    tBTA_AV_START   start;
+    tBTA_AV_API_STOP stop;
+    BOOLEAN         initiator = FALSE;
+    BOOLEAN         suspend = FALSE;
+    UINT16          flush_to;
+    UINT8           new_role = p_scb->role;
+    BT_HDR          hdr;
+    UINT8           policy = HCI_ENABLE_SNIFF_MODE;
+    UINT8           cur_role;
+
+    APPL_TRACE_DEBUG("bta_av_start_ok wait:x%x, role:x%x", p_scb->wait, p_scb->role);
+
+    p_scb->started = TRUE;
+    if (p_scb->sco_suspend)
+    {
+        p_scb->sco_suspend = FALSE;
+    }
+
+    if (new_role & BTA_AV_ROLE_START_INT)
+        initiator = TRUE;
+
+    /* for A2DP SINK we do not send get_caps */
+    if ((p_scb->avdt_handle == p_scb->seps[p_scb->sep_idx].av_handle)
+         &&(p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SNK))
+    {
+        p_scb->wait &= ~(BTA_AV_WAIT_ACP_CAPS_ON);
+        APPL_TRACE_DEBUG(" Local SEP type is SNK  new wait is 0x%x",p_scb->wait);
+    }
+    if (p_scb->wait & BTA_AV_WAIT_ROLE_SW_FAILED)
+    {
+        /* role switch has failed */
+        p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_FAILED;
+        p_data = (tBTA_AV_DATA *)&hdr;
+        hdr.offset = BTA_AV_RS_FAIL;
+    }
+    APPL_TRACE_DEBUG("wait:x%x", p_scb->wait);
+
+    if (p_data && (p_data->hdr.offset != BTA_AV_RS_NONE))
+    {
+        p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS;
+        if (p_data->hdr.offset == BTA_AV_RS_FAIL)
+        {
+            bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->peer_addr);
+            start.chnl   = p_scb->chnl;
+            start.status = BTA_AV_FAIL_ROLE;
+            start.hndl   = p_scb->hndl;
+            start.initiator = initiator;
+            (*bta_av_cb.p_cback)(BTA_AV_START_EVT, (tBTA_AV *) &start);
+            return;
+        }
+    }
+
+    if (!bta_av_link_role_ok(p_scb, A2D_SET_ONE_BIT))
+        p_scb->q_tag = BTA_AV_Q_TAG_START;
+    else
+    {
+        /* The wait flag may be set here while we are already master on the link */
+        /* this could happen if a role switch complete event occurred during reconfig */
+        /* if we are now master on the link, there is no need to wait for the role switch, */
+        /* complete anymore so we can clear the wait for role switch flag */
+        p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS;
+    }
+
+    if (p_scb->wait & (BTA_AV_WAIT_ROLE_SW_RES_OPEN|BTA_AV_WAIT_ROLE_SW_RES_START))
+    {
+        p_scb->wait |= BTA_AV_WAIT_ROLE_SW_STARTED;
+        p_scb->q_tag = BTA_AV_Q_TAG_START;
+    }
+
+    if (p_scb->wait)
+    {
+        APPL_TRACE_ERROR("wait:x%x q_tag:%d- not started", p_scb->wait, p_scb->q_tag);
+        /* Clear first bit of p_scb->wait and not to return from this point else
+         * HAL layer gets blocked. And if there is delay in Get Capability response as
+         * first bit of p_scb->wait is cleared hence it ensures bt_av_start_ok is not called
+         * again from bta_av_save_caps.
+        */
+        p_scb->wait &= ~BTA_AV_WAIT_ACP_CAPS_ON;
+    }
+
+    /* tell role manager to check M/S role */
+    bta_sys_conn_open(BTA_ID_AV, p_scb->app_id, p_scb->peer_addr);
+
+    bta_sys_busy(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->peer_addr);
+
+    if(p_scb->media_type == AVDT_MEDIA_AUDIO)
+    {
+        /* in normal logic, conns should be bta_av_cb.audio_count - 1,
+         * However, bta_av_stream_chg is not called to increase bta_av_cb.audio_count yet.
+         * If the code were to be re-arranged for some reasons, this number may need to be changed
+         */
+        p_scb->co_started = bta_av_cb.audio_open_cnt;
+        flush_to = p_bta_av_cfg->p_audio_flush_to[p_scb->co_started - 1];
+    }
+    else
+    {
+        flush_to = p_bta_av_cfg->video_flush_to;
+    }
+    L2CA_SetFlushTimeout(p_scb->peer_addr, flush_to );
+
+    /* clear the congestion flag */
+    p_scb->cong = FALSE;
+
+    if (new_role & BTA_AV_ROLE_START_INT)
+    {
+        new_role &= ~BTA_AV_ROLE_START_INT;
+    }
+    else if ((new_role & BTA_AV_ROLE_AD_ACP) && (new_role & BTA_AV_ROLE_SUSPEND_OPT))
+    {
+        suspend = TRUE;
+    }
+
+    if (!suspend)
+    {
+        p_scb->q_tag = BTA_AV_Q_TAG_STREAM;
+        bta_av_stream_chg(p_scb, TRUE);
+    }
+
+    {
+        /* If sink starts stream, disable sniff mode here */
+        if (!initiator)
+        {
+             /* If souce is the master role, disable role switch during streaming.
+             * Otherwise allow role switch, if source is slave.
+             * Because it would not hurt source, if the peer device wants source to be master */
+            if ((BTM_GetRole (p_scb->peer_addr, &cur_role) == BTM_SUCCESS) &&
+                (cur_role == BTM_ROLE_MASTER) )
+            {
+                policy |= HCI_ENABLE_MASTER_SLAVE_SWITCH;
+            }
+
+            bta_sys_clear_policy(BTA_ID_AV, policy, p_scb->peer_addr);
+        }
+
+        p_scb->role = new_role;
+        p_scb->role &= ~BTA_AV_ROLE_AD_ACP;
+        p_scb->role &= ~BTA_AV_ROLE_SUSPEND_OPT;
+
+        p_scb->no_rtp_hdr = FALSE;
+        p_scb->p_cos->start(p_scb->hndl, p_scb->codec_type, p_scb->cfg.codec_info, &p_scb->no_rtp_hdr);
+        p_scb->co_started = TRUE;
+
+        APPL_TRACE_DEBUG("bta_av_start_ok suspending: %d, role:x%x, init %d",
+            suspend, p_scb->role, initiator);
+
+        start.suspending = suspend;
+        start.initiator = initiator;
+        start.chnl   = p_scb->chnl;
+        start.status = BTA_AV_SUCCESS;
+        start.hndl   = p_scb->hndl;
+        (*bta_av_cb.p_cback)(BTA_AV_START_EVT, (tBTA_AV *) &start);
+
+        if(suspend)
+        {
+            p_scb->role |= BTA_AV_ROLE_SUSPEND;
+            p_scb->cong = TRUE;  /* do not allow the media data to go through */
+            /* do not duplicate the media packets to this channel */
+            p_scb->p_cos->stop(p_scb->hndl, p_scb->codec_type);
+            p_scb->co_started = FALSE;
+            stop.flush   = FALSE;
+            stop.suspend = TRUE;
+            bta_av_ssm_execute(p_scb, BTA_AV_AP_STOP_EVT, (tBTA_AV_DATA *)&stop);
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_start_failed
+**
+** Description      Stream start failed.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_start_failed (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
+{
+    UNUSED(p_data);
+
+    if(p_scb->started == FALSE && p_scb->co_started == FALSE)
+    {
+        bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->peer_addr);
+        notify_start_failed(p_scb);
+    }
+
+    bta_sys_set_policy(BTA_ID_AV, (HCI_ENABLE_SNIFF_MODE|HCI_ENABLE_MASTER_SLAVE_SWITCH), p_scb->peer_addr);
+    p_scb->sco_suspend = FALSE;
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_str_closed
+**
+** Description      Stream closed.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_str_closed (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
+{
+    tBTA_AV     data;
+    tBTA_AV_EVT event;
+    UINT16      mtu;
+    UINT8 policy = HCI_ENABLE_SNIFF_MODE;
+
+    if ((bta_av_cb.features & BTA_AV_FEAT_MASTER) == 0 || bta_av_cb.audio_open_cnt == 1)
+        policy |= HCI_ENABLE_MASTER_SLAVE_SWITCH;
+    bta_sys_set_policy(BTA_ID_AV, policy, p_scb->peer_addr);
+    if (bta_av_cb.audio_open_cnt <= 1)
+    {
+        /* last connection - restore the allow switch flag */
+        L2CA_SetDesireRole(L2CAP_ROLE_ALLOW_SWITCH);
+    }
+
+    if (p_scb->open_status)
+    {
+        /* must be failure when opening the stream */
+        bdcpy(data.open.bd_addr, p_scb->peer_addr);
+        data.open.status = p_scb->open_status;
+        data.open.chnl   = p_scb->chnl;
+        data.open.hndl   = p_scb->hndl;
+
+        if (p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SRC )
+            data.open.sep = AVDT_TSEP_SNK;
+        else if (p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SNK )
+            data.open.sep = AVDT_TSEP_SRC;
+
+        event = BTA_AV_OPEN_EVT;
+        p_scb->open_status = BTA_AV_SUCCESS;
+
+        bta_sys_conn_close(BTA_ID_AV, p_scb->app_id, p_scb->peer_addr);
+        bta_av_cleanup(p_scb, p_data);
+        (*bta_av_cb.p_cback)(event, &data);
+    }
+    else
+    {
+        /* do stop if we were started */
+        if (p_scb->co_started)
+        {
+            bta_av_str_stopped(p_scb, NULL);
+        }
+
+        /* Update common mtu shared by remaining connectons */
+        mtu = bta_av_chk_mtu(p_scb, BTA_AV_MAX_A2DP_MTU);
+
+        {
+            p_scb->p_cos->close(p_scb->hndl, p_scb->codec_type, mtu);
+            data.close.chnl = p_scb->chnl;
+            data.close.hndl = p_scb->hndl;
+            event = BTA_AV_CLOSE_EVT;
+
+            bta_sys_conn_close(BTA_ID_AV, p_scb->app_id, p_scb->peer_addr);
+            bta_av_cleanup(p_scb, p_data);
+            (*bta_av_cb.p_cback)(event, &data);
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_clr_cong
+**
+** Description      Clear stream congestion flag.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_clr_cong (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
+{
+    UNUSED(p_data);
+
+    if(p_scb->co_started)
+        p_scb->cong = FALSE;
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_suspend_cfm
+**
+** Description      process the suspend response
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_suspend_cfm (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
+{
+    tBTA_AV_SUSPEND suspend_rsp;
+    UINT8           err_code = p_data->str_msg.msg.hdr.err_code;
+    UINT8 policy = HCI_ENABLE_SNIFF_MODE;
+
+    APPL_TRACE_DEBUG ("bta_av_suspend_cfm:audio_open_cnt = %d, err_code = %d",
+        bta_av_cb.audio_open_cnt, err_code);
+
+    if (p_scb->started == FALSE)
+    {
+        /* handle the condition where there is a collision of SUSPEND req from either side
+        ** Second SUSPEND req could be rejected. Do not treat this as a failure
+        */
+        APPL_TRACE_WARNING("bta_av_suspend_cfm: already suspended, ignore, err_code %d",
+                            err_code);
+        return;
+    }
+
+    suspend_rsp.status = BTA_AV_SUCCESS;
+    if (err_code && (err_code != AVDT_ERR_BAD_STATE))
+    {
+         /* Disable suspend feature only with explicit rejection(not with timeout) */
+        if (err_code != AVDT_ERR_TIMEOUT)
+        {
+            p_scb->suspend_sup = FALSE;
+        }
+        suspend_rsp.status = BTA_AV_FAIL;
+
+        APPL_TRACE_ERROR ("bta_av_suspend_cfm: suspend failed, closing connection");
+
+        /* SUSPEND failed. Close connection. */
+        bta_av_ssm_execute(p_scb, BTA_AV_API_CLOSE_EVT, NULL);
+    }
+    else
+    {
+        /* only set started to FALSE when suspend is successful */
+        p_scb->started = FALSE;
+    }
+
+    if (p_scb->role & BTA_AV_ROLE_SUSPEND)
+    {
+        p_scb->role &= ~BTA_AV_ROLE_SUSPEND;
+        p_scb->cong = FALSE;
+    }
+
+    bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->peer_addr);
+    if ((bta_av_cb.features & BTA_AV_FEAT_MASTER) == 0 || bta_av_cb.audio_open_cnt == 1)
+        policy |= HCI_ENABLE_MASTER_SLAVE_SWITCH;
+    bta_sys_set_policy(BTA_ID_AV, policy, p_scb->peer_addr);
+
+    /* in case that we received suspend_ind, we may need to call co_stop here */
+    if(p_scb->co_started)
+    {
+        vendor_get_interface()->send_command(
+            (vendor_opcode_t)BT_VND_OP_A2DP_OFFLOAD_STOP,
+            (void*)&p_scb->l2c_cid);
+        if (p_scb->offload_start_pending) {
+            tBTA_AV_STATUS status = BTA_AV_FAIL_STREAM;
+            (*bta_av_cb.p_cback)(BTA_AV_OFFLOAD_START_RSP_EVT, (tBTA_AV *)&status);
+        }
+        p_scb->offload_start_pending = FALSE;
+
+        bta_av_stream_chg(p_scb, FALSE);
+
+        {
+            p_scb->co_started = FALSE;
+            p_scb->p_cos->stop(p_scb->hndl, p_scb->codec_type);
+        }
+        L2CA_SetFlushTimeout(p_scb->peer_addr, L2CAP_DEFAULT_FLUSH_TO);
+    }
+
+    {
+        suspend_rsp.chnl = p_scb->chnl;
+        suspend_rsp.hndl = p_scb->hndl;
+        suspend_rsp.initiator = p_data->str_msg.initiator;
+        (*bta_av_cb.p_cback)(BTA_AV_SUSPEND_EVT, (tBTA_AV *) &suspend_rsp);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_rcfg_str_ok
+**
+** Description      report reconfigure successful
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_rcfg_str_ok (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
+{
+    tBTA_AV_RECONFIG    evt;
+    UNUSED(p_data);
+
+    p_scb->l2c_cid      = AVDT_GetL2CapChannel(p_scb->avdt_handle);
+    APPL_TRACE_DEBUG("bta_av_rcfg_str_ok: l2c_cid: %d", p_scb->l2c_cid);
+
+    /* rc listen */
+    bta_av_st_rc_timer(p_scb, NULL);
+    osi_free_and_reset((void **)&p_scb->p_cap);
+
+    /* No need to keep the role bits once reconfig is done. */
+    p_scb->role &= ~BTA_AV_ROLE_AD_ACP;
+    p_scb->role &= ~BTA_AV_ROLE_SUSPEND_OPT;
+    p_scb->role &= ~BTA_AV_ROLE_START_INT;
+
+    {
+        /* reconfigure success  */
+        evt.status = BTA_AV_SUCCESS;
+        evt.chnl   = p_scb->chnl;
+        evt.hndl   = p_scb->hndl;
+        (*bta_av_cb.p_cback)(BTA_AV_RECONFIG_EVT, (tBTA_AV *)&evt);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_rcfg_failed
+**
+** Description      process reconfigure failed
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_rcfg_failed (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
+{
+    tBTA_AV_RECONFIG evt;
+
+    APPL_TRACE_DEBUG("bta_av_rcfg_failed num_recfg: %d, conn_lcb:0x%x",
+        p_scb->num_recfg, bta_av_cb.conn_lcb);
+    if(p_scb->num_recfg > BTA_AV_RECONFIG_RETRY)
+    {
+        bta_av_cco_close(p_scb, p_data);
+        /* report failure */
+        evt.status = BTA_AV_FAIL_STREAM;
+        evt.chnl   = p_scb->chnl;
+        evt.hndl   = p_scb->hndl;
+        (*bta_av_cb.p_cback)(BTA_AV_RECONFIG_EVT, (tBTA_AV *)&evt);
+        /* go to closing state */
+        bta_av_ssm_execute(p_scb, BTA_AV_API_CLOSE_EVT, NULL);
+    }
+    else
+    {
+        /* open failed. try again */
+        p_scb->num_recfg++;
+        if(bta_av_cb.conn_lcb)
+        {
+            AVDT_DisconnectReq(p_scb->peer_addr, bta_av_dt_cback[p_scb->hdi]);
+        }
+        else
+        {
+            bta_av_connect_req(p_scb, NULL);
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_rcfg_connect
+**
+** Description      stream closed. reconnect the stream
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_rcfg_connect (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
+{
+    UNUSED(p_data);
+
+    p_scb->cong    = FALSE;
+    p_scb->num_recfg++;
+    APPL_TRACE_DEBUG("bta_av_rcfg_connect num_recfg: %d", p_scb->num_recfg);
+    if(p_scb->num_recfg > BTA_AV_RECONFIG_RETRY)
+    {
+        /* let bta_av_rcfg_failed report fail */
+        bta_av_rcfg_failed(p_scb, NULL);
+    }
+    else
+        AVDT_ConnectReq(p_scb->peer_addr, p_scb->sec_mask, bta_av_dt_cback[p_scb->hdi]);
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_rcfg_discntd
+**
+** Description      AVDT disconnected. reconnect the stream
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_rcfg_discntd (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
+{
+    tBTA_AV_RECONFIG    evt;
+    UNUSED(p_data);
+
+    APPL_TRACE_DEBUG("bta_av_rcfg_discntd num_recfg: %d", p_scb->num_recfg);
+    p_scb->num_recfg++;
+    if(p_scb->num_recfg > BTA_AV_RECONFIG_RETRY)
+    {
+        /* report failure */
+        evt.status = BTA_AV_FAIL_STREAM;
+        evt.chnl   = p_scb->chnl;
+        evt.hndl   = p_scb->hndl;
+        (*bta_av_cb.p_cback)(BTA_AV_RECONFIG_EVT, (tBTA_AV *)&evt);
+        /* report close event & go to init state */
+        bta_av_ssm_execute(p_scb, BTA_AV_STR_DISC_FAIL_EVT, NULL);
+    }
+    else
+        AVDT_ConnectReq(p_scb->peer_addr, p_scb->sec_mask, bta_av_dt_cback[p_scb->hdi]);
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_suspend_cont
+**
+** Description      received the suspend response.
+**                  continue to reconfigure the stream
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_suspend_cont (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
+{
+    UINT8       err_code = p_data->str_msg.msg.hdr.err_code;
+    tBTA_AV_RECONFIG    evt;
+
+    p_scb->started = FALSE;
+    p_scb->cong    = FALSE;
+    if (err_code)
+    {
+        if (AVDT_ERR_CONNECT == err_code)
+        {
+            /* report failure */
+            evt.status = BTA_AV_FAIL;
+            (*bta_av_cb.p_cback)(BTA_AV_RECONFIG_EVT, (tBTA_AV *)&evt);
+            bta_av_ssm_execute(p_scb, BTA_AV_STR_DISC_FAIL_EVT, NULL);
+        }
+        else
+        {
+            APPL_TRACE_ERROR("suspend rejected, try close");
+             /* Disable suspend feature only with explicit rejection(not with timeout) */
+            if (err_code != AVDT_ERR_TIMEOUT)
+            {
+                p_scb->suspend_sup = FALSE;
+            }
+            /* drop the buffers queued in L2CAP */
+            L2CA_FlushChannel (p_scb->l2c_cid, L2CAP_FLUSH_CHANS_ALL);
+
+            AVDT_CloseReq(p_scb->avdt_handle);
+        }
+    }
+    else
+    {
+        APPL_TRACE_DEBUG("bta_av_suspend_cont calling AVDT_ReconfigReq");
+        /* reconfig the stream */
+
+        AVDT_ReconfigReq(p_scb->avdt_handle, p_scb->p_cap);
+        p_scb->p_cap->psc_mask = p_scb->cur_psc_mask;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_rcfg_cfm
+**
+** Description      if reconfigure is successful, report the event
+**                  otherwise, close the stream.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_rcfg_cfm (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
+{
+    UINT8   err_code = p_data->str_msg.msg.hdr.err_code;
+
+    /*
+    APPL_TRACE_DEBUG("bta_av_rcfg_cfm");
+    */
+    if (err_code)
+    {
+        APPL_TRACE_ERROR("reconfig rejected, try close");
+         /* Disable reconfiguration feature only with explicit rejection(not with timeout) */
+        if (err_code != AVDT_ERR_TIMEOUT)
+        {
+            p_scb->recfg_sup = FALSE;
+        }
+        /* started flag is FALSE when reconfigure command is sent */
+        /* drop the buffers queued in L2CAP */
+        L2CA_FlushChannel (p_scb->l2c_cid, L2CAP_FLUSH_CHANS_ALL);
+        AVDT_CloseReq(p_scb->avdt_handle);
+    }
+    else
+    {
+        /* update the codec info after rcfg cfm */
+        memcpy(p_scb->cfg.codec_info,p_data->str_msg.msg.reconfig_cfm.p_cfg->codec_info,AVDT_CODEC_SIZE);
+        /* take the SSM back to OPEN state */
+        bta_av_ssm_execute(p_scb, BTA_AV_STR_OPEN_OK_EVT, NULL);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_rcfg_open
+**
+** Description      AVDT is connected. open the stream with the new configuration
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_rcfg_open (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
+{
+    UNUSED(p_data);
+
+	APPL_TRACE_DEBUG("bta_av_rcfg_open, num_disc_snks = %d", p_scb->num_disc_snks);
+
+    if (p_scb->num_disc_snks == 0)
+    {
+        /* Need to update call-out module so that it will be ready for discover */
+        p_scb->p_cos->stop(p_scb->hndl, p_scb->codec_type);
+
+        /* send avdtp discover request */
+        AVDT_DiscoverReq(p_scb->peer_addr, p_scb->sep_info, BTA_AV_NUM_SEPS, bta_av_dt_cback[p_scb->hdi]);
+    }
+    else
+    {
+        p_scb->codec_type = p_scb->p_cap->codec_info[BTA_AV_CODEC_TYPE_IDX];
+        memcpy(p_scb->cfg.codec_info, p_scb->p_cap->codec_info, AVDT_CODEC_SIZE);
+        /* we may choose to use a different SEP at reconfig.
+         * adjust the sep_idx now */
+        bta_av_adjust_seps_idx(p_scb, bta_av_get_scb_handle(p_scb, AVDT_TSEP_SRC));
+
+        /* open the stream with the new config */
+        p_scb->sep_info_idx = p_scb->rcfg_idx;
+        AVDT_OpenReq(p_scb->avdt_handle, p_scb->peer_addr,
+                     p_scb->sep_info[p_scb->sep_info_idx].seid, p_scb->p_cap);
+    }
+
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_security_rej
+**
+** Description      Send an AVDTP security reject.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_security_rej (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
+{
+    UNUSED(p_data);
+
+    AVDT_SecurityRsp(p_scb->avdt_handle, p_scb->avdt_label, AVDT_ERR_BAD_STATE,
+                     NULL, 0);
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_chk_2nd_start
+**
+** Description      check if this is 2nd stream and if it needs to be started.
+**                  This function needs to be kept very similar to bta_av_chk_start
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_chk_2nd_start (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
+{
+    tBTA_AV_SCB *p_scbi;
+    int i;
+    BOOLEAN new_started = FALSE;
+    UNUSED(p_data);
+
+    if ((p_scb->chnl == BTA_AV_CHNL_AUDIO) && (bta_av_cb.audio_open_cnt >= 2))
+    {
+        /* more than one audio channel is connected */
+        if (!(p_scb->role & BTA_AV_ROLE_SUSPEND_OPT))
+        {
+            /* this channel does not need to be reconfigured.
+             * if there is other channel streaming, start the stream now */
+            for(i=0; i<BTA_AV_NUM_STRS; i++)
+            {
+                p_scbi = bta_av_cb.p_scb[i];
+                if(p_scbi && p_scbi->chnl == BTA_AV_CHNL_AUDIO && p_scbi->co_started)
+                {
+                    if (!new_started)
+                    {
+                        /* start the new stream */
+                        new_started = TRUE;
+                        bta_av_ssm_execute(p_scb, BTA_AV_AP_START_EVT, NULL);
+                    }
+                    /* may need to update the flush timeout of this already started stream */
+                    if (p_scbi->co_started != bta_av_cb.audio_open_cnt)
+                    {
+                        p_scbi->co_started = bta_av_cb.audio_open_cnt;
+                        L2CA_SetFlushTimeout(p_scbi->peer_addr, p_bta_av_cfg->p_audio_flush_to[p_scbi->co_started - 1] );
+                    }
+                }
+            }
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_open_rc
+**
+** Description      Send a message to main SM to open RC channel.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_open_rc (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
+{
+    tBTA_AV_START   start;
+
+    APPL_TRACE_DEBUG("bta_av_open_rc use_rc: %d, wait: x%x role:x%x", p_scb->use_rc, p_scb->wait, p_scb->role);
+    if ((p_scb->wait & BTA_AV_WAIT_ROLE_SW_BITS) && (p_scb->q_tag == BTA_AV_Q_TAG_START))
+    {
+        /* waiting for role switch for some reason & the timer expires */
+        if (!bta_av_link_role_ok(p_scb, A2D_SET_ONE_BIT))
+        {
+            APPL_TRACE_ERROR ("failed to start streaming for role management reasons!!");
+            alarm_cancel(p_scb->avrc_ct_timer);
+            start.chnl   = p_scb->chnl;
+            start.status = BTA_AV_FAIL_ROLE;
+            start.initiator = TRUE;
+            start.hndl   = p_scb->hndl;
+            p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS;
+            bta_av_cb.rs_idx = 0;
+            (*bta_av_cb.p_cback)(BTA_AV_START_EVT, (tBTA_AV *) &start);
+        }
+        else
+        {
+            /* role switch is done. continue to start streaming */
+            bta_av_cb.rs_idx = 0;
+            p_data->hdr.offset = BTA_AV_RS_OK;
+            bta_av_start_ok (p_scb, p_data);
+        }
+        return;
+    }
+
+    if(p_scb->use_rc == TRUE || (p_scb->role & BTA_AV_ROLE_AD_ACP) )
+    {
+        if(bta_av_cb.disc)
+        {
+            /* AVRC discover db is in use */
+            if(p_scb->rc_handle == BTA_AV_RC_HANDLE_NONE)
+            {
+                /* AVRC channel is not connected. delay a little bit */
+                if ((p_scb->wait & BTA_AV_WAIT_ROLE_SW_BITS) == 0) {
+                    bta_sys_start_timer(p_scb->avrc_ct_timer,
+                                        BTA_AV_RC_DISC_TIME_VAL,
+                                        BTA_AV_AVRC_TIMER_EVT, p_scb->hndl);
+                } else {
+                    p_scb->wait |= BTA_AV_WAIT_CHECK_RC;
+                }
+            }
+        }
+        else
+        {
+            /* use main SM for AVRC SDP activities */
+            bta_av_rc_disc((UINT8)(p_scb->hdi + 1));
+        }
+    }
+    else
+    {
+        if(BTA_AV_RC_HANDLE_NONE != p_scb->rc_handle)
+        {
+            /* the open API said that this handle does not want a RC connection.
+             * disconnect it now */
+            AVRC_Close(p_scb->rc_handle);
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_open_at_inc
+**
+** Description      This function is called if API open is called by application
+**                  while state-machine is at incoming state.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_open_at_inc (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
+{
+    memcpy (&(p_scb->open_api), &(p_data->api_open), sizeof(tBTA_AV_API_OPEN));
+
+    if (p_scb->coll_mask & BTA_AV_COLL_INC_TMR)
+    {
+        p_scb->coll_mask |= BTA_AV_COLL_API_CALLED;
+
+        /* API open will be handled at timeout if SNK did not start signalling. */
+        /* API open will be ignored if SNK starts signalling.                   */
+    }
+    else
+    {
+        /* SNK did not start signalling, API was called N seconds timeout. */
+        /* We need to switch to INIT state and start opening connection. */
+        p_scb->coll_mask = 0;
+        bta_av_set_scb_sst_init(p_scb);
+
+        tBTA_AV_API_OPEN *p_buf =
+            (tBTA_AV_API_OPEN *)osi_malloc(sizeof(tBTA_AV_API_OPEN));
+        memcpy(p_buf, &(p_scb->open_api), sizeof(tBTA_AV_API_OPEN));
+        p_scb->skip_sdp = TRUE;
+        bta_sys_sendmsg(p_buf);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_offload_req
+**
+** Description      This function is called if application requests offload of
+**                  a2dp audio.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_offload_req(tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
+{
+    tBTA_AV_STATUS status = BTA_AV_FAIL_RESOURCES;
+    UINT16 mtu = bta_av_chk_mtu(p_scb, p_scb->stream_mtu);
+
+    APPL_TRACE_DEBUG("%s stream %s, audio channels open %d", __func__,
+                     p_scb->started ? "STARTED" : "STOPPED", bta_av_cb.audio_open_cnt);
+
+    /* Check if stream has already been started. */
+    /* Support offload if only one audio source stream is open. */
+    if (p_scb->started != TRUE) {
+        status = BTA_AV_FAIL_STREAM;
+
+    } else if (bta_av_cb.audio_open_cnt == 1 &&
+               p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SRC &&
+               p_scb->chnl == BTA_AV_CHNL_AUDIO) {
+
+        bt_vendor_op_a2dp_offload_t a2dp_offload_start;
+
+        if (L2CA_GetConnectionConfig(p_scb->l2c_cid, &a2dp_offload_start.acl_data_size,
+                                     &a2dp_offload_start.remote_cid, &a2dp_offload_start.lm_handle)) {
+
+            APPL_TRACE_DEBUG("%s l2cmtu %d lcid 0x%02X rcid 0x%02X lm_handle 0x%02X", __func__,
+                             a2dp_offload_start.acl_data_size, p_scb->l2c_cid,
+                             a2dp_offload_start.remote_cid, a2dp_offload_start.lm_handle);
+
+            a2dp_offload_start.bta_av_handle = p_scb->hndl;
+            a2dp_offload_start.xmit_quota = BTA_AV_A2DP_OFFLOAD_XMIT_QUOTA;
+            a2dp_offload_start.stream_mtu = (mtu < p_scb->stream_mtu) ? mtu : p_scb->stream_mtu;
+            a2dp_offload_start.local_cid = p_scb->l2c_cid;
+            a2dp_offload_start.is_flushable = TRUE;
+            a2dp_offload_start.stream_source = ((UINT32)(p_scb->cfg.codec_info[1] | p_scb->cfg.codec_info[2]));
+
+            memcpy(a2dp_offload_start.codec_info, p_scb->cfg.codec_info,
+                   sizeof(a2dp_offload_start.codec_info));
+
+            if (!vendor_get_interface()->send_command(
+                  (vendor_opcode_t)BT_VND_OP_A2DP_OFFLOAD_START,
+                  &a2dp_offload_start)) {
+                status = BTA_AV_SUCCESS;
+                p_scb->offload_start_pending = TRUE;
+            }
+        }
+    }
+
+    if (status != BTA_AV_SUCCESS)
+        (*bta_av_cb.p_cback)(BTA_AV_OFFLOAD_START_RSP_EVT, (tBTA_AV *)&status);
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_offload_rsp
+**
+** Description      This function is called when the vendor lib responds to
+**                  BT_VND_OP_A2DP_OFFLOAD_START.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_offload_rsp(tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
+{
+    tBTA_AV_STATUS status = p_data->api_status_rsp.status;
+
+    APPL_TRACE_DEBUG("%s stream %s status %s", __func__,
+                     p_scb->started ? "STARTED" : "STOPPED",
+                     status ? "FAIL" : "SUCCESS");
+
+    /* Check if stream has already been started. */
+    if (status == BTA_AV_SUCCESS && p_scb->started != TRUE) {
+        status = BTA_AV_FAIL_STREAM;
+    }
+
+    p_scb->offload_start_pending = FALSE;
+    (*bta_av_cb.p_cback)(BTA_AV_OFFLOAD_START_RSP_EVT, (tBTA_AV *)&status);
+}
+
+#endif /* BTA_AV_INCLUDED */
diff --git a/rtkbt/code/bt/bta/av/bta_av_act.c b/rtkbt/code/bt/bta/av/bta_av_act.c
new file mode 100755
index 0000000..5857dd6
--- /dev/null
+++ b/rtkbt/code/bt/bta/av/bta_av_act.c
@@ -0,0 +1,2201 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2004-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains action functions for advanced audio/video main state
+ *  machine.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_bta_av"
+
+#include "bt_target.h"
+
+#if defined(BTA_AV_INCLUDED) && (BTA_AV_INCLUDED == TRUE)
+
+#include <string.h>
+
+#include "avdt_api.h"
+#include "bta_av_api.h"
+#include "bta_av_int.h"
+#include "l2c_api.h"
+#include "osi/include/list.h"
+#include "osi/include/log.h"
+#include "osi/include/osi.h"
+#include "osi/include/properties.h"
+#include "utl.h"
+
+#if ( defined BTA_AR_INCLUDED ) && (BTA_AR_INCLUDED == TRUE)
+#include "bta_ar_api.h"
+#endif
+
+/*****************************************************************************
+**  Constants
+*****************************************************************************/
+/* the timeout to wait for open req after setconfig for incoming connections */
+#ifndef BTA_AV_SIGNALLING_TIMEOUT_MS
+#define BTA_AV_SIGNALLING_TIMEOUT_MS (8 * 1000)         /* 8 seconds */
+#endif
+
+/* Time to wait for signalling from SNK when it is initiated from SNK. */
+/* If not, we will start signalling from SRC. */
+#ifndef BTA_AV_ACCEPT_SIGNALLING_TIMEOUT_MS
+#define BTA_AV_ACCEPT_SIGNALLING_TIMEOUT_MS     (2 * 1000)      /* 2 seconds */
+#endif
+
+extern fixed_queue_t *btu_bta_alarm_queue;
+
+static void bta_av_accept_signalling_timer_cback(void *data);
+
+/*******************************************************************************
+**
+** Function         bta_av_get_rcb_by_shdl
+**
+** Description      find the RCB associated with the given SCB handle.
+**
+** Returns          tBTA_AV_RCB
+**
+*******************************************************************************/
+tBTA_AV_RCB * bta_av_get_rcb_by_shdl(UINT8 shdl)
+{
+    tBTA_AV_RCB *p_rcb = NULL;
+    int         i;
+
+    for (i=0; i<BTA_AV_NUM_RCB; i++)
+    {
+        if (bta_av_cb.rcb[i].shdl == shdl && bta_av_cb.rcb[i].handle != BTA_AV_RC_HANDLE_NONE)
+        {
+            p_rcb = &bta_av_cb.rcb[i];
+            break;
+        }
+    }
+    return p_rcb;
+}
+#define BTA_AV_STS_NO_RSP       0xFF    /* a number not used by tAVRC_STS */
+
+/*******************************************************************************
+**
+** Function         bta_av_del_rc
+**
+** Description      delete the given AVRC handle.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_del_rc(tBTA_AV_RCB *p_rcb)
+{
+    tBTA_AV_SCB  *p_scb;
+    UINT8        rc_handle;      /* connected AVRCP handle */
+
+    p_scb = NULL;
+    if (p_rcb->handle != BTA_AV_RC_HANDLE_NONE)
+    {
+        if (p_rcb->shdl)
+        {
+            /* Validate array index*/
+            if ((p_rcb->shdl - 1) < BTA_AV_NUM_STRS)
+            {
+                p_scb = bta_av_cb.p_scb[p_rcb->shdl - 1];
+            }
+            if (p_scb)
+            {
+                APPL_TRACE_DEBUG("bta_av_del_rc shdl:%d, srch:%d rc_handle:%d", p_rcb->shdl,
+                                  p_scb->rc_handle, p_rcb->handle);
+                if (p_scb->rc_handle == p_rcb->handle)
+                    p_scb->rc_handle = BTA_AV_RC_HANDLE_NONE;
+                /* just in case the RC timer is active
+                if (bta_av_cb.features & BTA_AV_FEAT_RCCT && p_scb->chnl == BTA_AV_CHNL_AUDIO) */
+                alarm_cancel(p_scb->avrc_ct_timer);
+            }
+        }
+
+        APPL_TRACE_EVENT("bta_av_del_rc  handle: %d status=0x%x, rc_acp_handle:%d, idx:%d",
+            p_rcb->handle, p_rcb->status, bta_av_cb.rc_acp_handle, bta_av_cb.rc_acp_idx);
+        rc_handle = p_rcb->handle;
+        if (!(p_rcb->status & BTA_AV_RC_CONN_MASK) ||
+            ((p_rcb->status & BTA_AV_RC_ROLE_MASK) == BTA_AV_RC_ROLE_INT) )
+        {
+            p_rcb->status = 0;
+            p_rcb->handle = BTA_AV_RC_HANDLE_NONE;
+            p_rcb->shdl = 0;
+            p_rcb->lidx = 0;
+        }
+        /* else ACP && connected. do not clear the handle yet */
+        AVRC_Close(rc_handle);
+        if (rc_handle == bta_av_cb.rc_acp_handle)
+            bta_av_cb.rc_acp_handle = BTA_AV_RC_HANDLE_NONE;
+        APPL_TRACE_EVENT("end del_rc handle: %d status=0x%x, rc_acp_handle:%d, lidx:%d",
+            p_rcb->handle, p_rcb->status, bta_av_cb.rc_acp_handle, p_rcb->lidx);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_close_all_rc
+**
+** Description      close the all AVRC handle.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_av_close_all_rc(tBTA_AV_CB *p_cb)
+{
+    int i;
+
+    for(i=0; i<BTA_AV_NUM_RCB; i++)
+    {
+        if ((p_cb->disabling == TRUE) || (bta_av_cb.rcb[i].shdl != 0))
+            bta_av_del_rc(&bta_av_cb.rcb[i]);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_del_sdp_rec
+**
+** Description      delete the given SDP record handle.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_av_del_sdp_rec(UINT32 *p_sdp_handle)
+{
+    if (*p_sdp_handle != 0)
+    {
+        SDP_DeleteRecord(*p_sdp_handle);
+        *p_sdp_handle = 0;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_avrc_sdp_cback
+**
+** Description      AVRCP service discovery callback.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_av_avrc_sdp_cback(UINT16 status)
+{
+    BT_HDR *p_msg = (BT_HDR *)osi_malloc(sizeof(BT_HDR));
+
+    UNUSED(status);
+
+    p_msg->event = BTA_AV_SDP_AVRC_DISC_EVT;
+
+    bta_sys_sendmsg(p_msg);
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_rc_ctrl_cback
+**
+** Description      AVRCP control callback.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_av_rc_ctrl_cback(UINT8 handle, UINT8 event, UINT16 result, BD_ADDR peer_addr)
+{
+    UINT16 msg_event = 0;
+    UNUSED(result);
+
+#if (defined(BTA_AV_MIN_DEBUG_TRACES) && BTA_AV_MIN_DEBUG_TRACES == TRUE)
+    APPL_TRACE_EVENT("rc_ctrl handle: %d event=0x%x", handle, event);
+#else
+    APPL_TRACE_EVENT("bta_av_rc_ctrl_cback handle: %d event=0x%x", handle, event);
+#endif
+    if (event == AVRC_OPEN_IND_EVT)
+    {
+        /* save handle of opened connection
+        bta_av_cb.rc_handle = handle;*/
+
+        msg_event = BTA_AV_AVRC_OPEN_EVT;
+    }
+    else if (event == AVRC_CLOSE_IND_EVT)
+    {
+        msg_event = BTA_AV_AVRC_CLOSE_EVT;
+    }
+
+    if (msg_event) {
+        tBTA_AV_RC_CONN_CHG *p_msg =
+            (tBTA_AV_RC_CONN_CHG *)osi_malloc(sizeof(tBTA_AV_RC_CONN_CHG));
+        p_msg->hdr.event = msg_event;
+        p_msg->handle = handle;
+        if (peer_addr)
+            bdcpy(p_msg->peer_addr, peer_addr);
+        bta_sys_sendmsg(p_msg);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_rc_msg_cback
+**
+** Description      AVRCP message callback.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_av_rc_msg_cback(UINT8 handle, UINT8 label, UINT8 opcode, tAVRC_MSG *p_msg)
+{
+    UINT8           *p_data_src = NULL;
+    UINT16          data_len = 0;
+
+    APPL_TRACE_DEBUG("%s handle: %u opcode=0x%x", __func__, handle, opcode);
+
+    /* Determine the size of the buffer we need */
+    if (opcode == AVRC_OP_VENDOR && p_msg->vendor.p_vendor_data != NULL) {
+        p_data_src = p_msg->vendor.p_vendor_data;
+        data_len = (UINT16) p_msg->vendor.vendor_len;
+    } else if (opcode == AVRC_OP_PASS_THRU && p_msg->pass.p_pass_data != NULL) {
+        p_data_src = p_msg->pass.p_pass_data;
+        data_len = (UINT16) p_msg->pass.pass_len;
+    }
+
+    /* Create a copy of the message */
+    tBTA_AV_RC_MSG *p_buf =
+        (tBTA_AV_RC_MSG *)osi_malloc(sizeof(tBTA_AV_RC_MSG) + data_len);
+    p_buf->hdr.event = BTA_AV_AVRC_MSG_EVT;
+    p_buf->handle = handle;
+    p_buf->label = label;
+    p_buf->opcode = opcode;
+    memcpy(&p_buf->msg, p_msg, sizeof(tAVRC_MSG));
+    /* Copy the data payload, and set the pointer to it */
+    if (p_data_src != NULL) {
+        UINT8 *p_data_dst = (UINT8 *)(p_buf + 1);
+        memcpy(p_data_dst, p_data_src, data_len);
+        if (opcode == AVRC_OP_VENDOR)
+            p_buf->msg.vendor.p_vendor_data = p_data_dst;
+        else if (opcode == AVRC_OP_PASS_THRU)
+            p_buf->msg.pass.p_pass_data = p_data_dst;
+    }
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_rc_create
+**
+** Description      alloc RCB and call AVRC_Open
+**
+** Returns          the created rc handle
+**
+*******************************************************************************/
+UINT8 bta_av_rc_create(tBTA_AV_CB *p_cb, UINT8 role, UINT8 shdl, UINT8 lidx)
+{
+    tAVRC_CONN_CB ccb;
+    BD_ADDR_PTR   bda = (BD_ADDR_PTR)bd_addr_any;
+    UINT8         status = BTA_AV_RC_ROLE_ACP;
+    tBTA_AV_SCB  *p_scb = p_cb->p_scb[shdl - 1];
+    int i;
+    UINT8   rc_handle;
+    tBTA_AV_RCB *p_rcb;
+
+    if (role == AVCT_INT)
+    {
+        bda = p_scb->peer_addr;
+        status = BTA_AV_RC_ROLE_INT;
+    }
+    else
+    {
+        if ((p_rcb = bta_av_get_rcb_by_shdl(shdl)) != NULL )
+        {
+            APPL_TRACE_ERROR("bta_av_rc_create ACP handle exist for shdl:%d", shdl);
+            return p_rcb->handle;
+        }
+    }
+
+    ccb.p_ctrl_cback = bta_av_rc_ctrl_cback;
+    ccb.p_msg_cback = bta_av_rc_msg_cback;
+    ccb.company_id = p_bta_av_cfg->company_id;
+    ccb.conn = role;
+    /* note: BTA_AV_FEAT_RCTG = AVRC_CT_TARGET, BTA_AV_FEAT_RCCT = AVRC_CT_CONTROL */
+    ccb.control = p_cb->features & (BTA_AV_FEAT_RCTG | BTA_AV_FEAT_RCCT | AVRC_CT_PASSIVE);
+
+    if (AVRC_Open(&rc_handle, &ccb, bda) != AVRC_SUCCESS)
+        return BTA_AV_RC_HANDLE_NONE;
+
+    i = rc_handle;
+    p_rcb = &p_cb->rcb[i];
+
+    if (p_rcb->handle != BTA_AV_RC_HANDLE_NONE)
+    {
+        APPL_TRACE_ERROR("bta_av_rc_create found duplicated handle:%d", rc_handle);
+    }
+
+    p_rcb->handle = rc_handle;
+    p_rcb->status = status;
+    p_rcb->shdl = shdl;
+    p_rcb->lidx = lidx;
+    p_rcb->peer_features = 0;
+    if (lidx == (BTA_AV_NUM_LINKS + 1))
+    {
+        /* this LIDX is reserved for the AVRCP ACP connection */
+        p_cb->rc_acp_handle = p_rcb->handle;
+        p_cb->rc_acp_idx = (i + 1);
+        APPL_TRACE_DEBUG("rc_acp_handle:%d idx:%d", p_cb->rc_acp_handle, p_cb->rc_acp_idx);
+    }
+    APPL_TRACE_DEBUG("create %d, role: %d, shdl:%d, rc_handle:%d, lidx:%d, status:0x%x",
+        i, role, shdl, p_rcb->handle, lidx, p_rcb->status);
+
+    return rc_handle;
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_valid_group_navi_msg
+**
+** Description      Check if it is Group Navigation Msg for Metadata
+**
+** Returns          BTA_AV_RSP_ACCEPT or BTA_AV_RSP_NOT_IMPL.
+**
+*******************************************************************************/
+static tBTA_AV_CODE bta_av_group_navi_supported(UINT8 len, UINT8 *p_data, BOOLEAN is_inquiry)
+{
+    tBTA_AV_CODE ret=BTA_AV_RSP_NOT_IMPL;
+    UINT8 *p_ptr = p_data;
+    UINT16 u16;
+    UINT32 u32;
+
+    if (p_bta_av_cfg->avrc_group && len == BTA_GROUP_NAVI_MSG_OP_DATA_LEN)
+    {
+        BTA_AV_BE_STREAM_TO_CO_ID(u32, p_ptr);
+        BE_STREAM_TO_UINT16(u16, p_ptr);
+
+        if (u32 == AVRC_CO_METADATA)
+        {
+            if (is_inquiry)
+            {
+                if (u16 <= AVRC_PDU_PREV_GROUP)
+                    ret = BTA_AV_RSP_IMPL_STBL;
+            }
+            else
+            {
+                if (u16 <= AVRC_PDU_PREV_GROUP)
+                    ret = BTA_AV_RSP_ACCEPT;
+                else
+                    ret = BTA_AV_RSP_REJ;
+            }
+        }
+    }
+
+    return ret;
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_op_supported
+**
+** Description      Check if remote control operation is supported.
+**
+** Returns          BTA_AV_RSP_ACCEPT of supported, BTA_AV_RSP_NOT_IMPL if not.
+**
+*******************************************************************************/
+static tBTA_AV_CODE bta_av_op_supported(tBTA_AV_RC rc_id, BOOLEAN is_inquiry)
+{
+    tBTA_AV_CODE ret_code = BTA_AV_RSP_NOT_IMPL;
+
+    if (p_bta_av_rc_id)
+    {
+        if (is_inquiry)
+        {
+            if (p_bta_av_rc_id[rc_id >> 4] & (1 << (rc_id & 0x0F)))
+            {
+                ret_code = BTA_AV_RSP_IMPL_STBL;
+            }
+        }
+        else
+        {
+            if (p_bta_av_rc_id[rc_id >> 4] & (1 << (rc_id & 0x0F)))
+            {
+                ret_code = BTA_AV_RSP_ACCEPT;
+            }
+            else if ((p_bta_av_cfg->rc_pass_rsp == BTA_AV_RSP_INTERIM) && p_bta_av_rc_id_ac)
+            {
+                if (p_bta_av_rc_id_ac[rc_id >> 4] & (1 << (rc_id & 0x0F)))
+                {
+                    ret_code = BTA_AV_RSP_INTERIM;
+                }
+            }
+        }
+
+    }
+    return ret_code;
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_find_lcb
+**
+** Description      Given BD_addr, find the associated LCB.
+**
+** Returns          NULL, if not found.
+**
+*******************************************************************************/
+tBTA_AV_LCB * bta_av_find_lcb(BD_ADDR addr, UINT8 op)
+{
+    tBTA_AV_CB   *p_cb = &bta_av_cb;
+    int     xx;
+    UINT8   mask;
+    tBTA_AV_LCB *p_lcb = NULL;
+
+    for(xx=0; xx<BTA_AV_NUM_LINKS; xx++)
+    {
+        mask = 1 << xx; /* the used mask for this lcb */
+        if ((mask & p_cb->conn_lcb) && 0 ==( bdcmp(p_cb->lcb[xx].addr, addr)))
+        {
+            p_lcb = &p_cb->lcb[xx];
+            if (op == BTA_AV_LCB_FREE)
+            {
+                p_cb->conn_lcb &= ~mask; /* clear the connect mask */
+                APPL_TRACE_DEBUG("conn_lcb: 0x%x", p_cb->conn_lcb);
+            }
+            break;
+        }
+    }
+    return p_lcb;
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_rc_opened
+**
+** Description      Set AVRCP state to opened.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_rc_opened(tBTA_AV_CB *p_cb, tBTA_AV_DATA *p_data)
+{
+    tBTA_AV_RC_OPEN rc_open;
+    tBTA_AV_SCB     *p_scb;
+    int         i;
+    UINT8       shdl = 0;
+    tBTA_AV_LCB *p_lcb;
+    tBTA_AV_RCB *p_rcb;
+    UINT8       tmp;
+    UINT8       disc = 0;
+
+    /* find the SCB & stop the timer */
+    for(i=0; i<BTA_AV_NUM_STRS; i++)
+    {
+        p_scb = p_cb->p_scb[i];
+        if (p_scb && bdcmp(p_scb->peer_addr, p_data->rc_conn_chg.peer_addr) == 0)
+        {
+            p_scb->rc_handle = p_data->rc_conn_chg.handle;
+            APPL_TRACE_DEBUG("bta_av_rc_opened shdl:%d, srch %d", i + 1, p_scb->rc_handle);
+            shdl = i+1;
+            LOG_INFO(LOG_TAG, "%s allow incoming AVRCP connections:%d", __func__, p_scb->use_rc);
+            alarm_cancel(p_scb->avrc_ct_timer);
+            disc = p_scb->hndl;
+            break;
+        }
+    }
+
+    i = p_data->rc_conn_chg.handle;
+    if (p_cb->rcb[i].handle == BTA_AV_RC_HANDLE_NONE)
+    {
+        APPL_TRACE_ERROR("not a valid handle:%d any more", i);
+        return;
+    }
+
+    if (p_cb->rcb[i].lidx == (BTA_AV_NUM_LINKS + 1) && shdl != 0)
+    {
+        /* rc is opened on the RC only ACP channel, but is for a specific
+         * SCB -> need to switch RCBs */
+        p_rcb = bta_av_get_rcb_by_shdl(shdl);
+        if (p_rcb)
+        {
+            p_rcb->shdl = p_cb->rcb[i].shdl;
+            tmp         = p_rcb->lidx;
+            p_rcb->lidx = p_cb->rcb[i].lidx;
+            p_cb->rcb[i].lidx = tmp;
+            p_cb->rc_acp_handle = p_rcb->handle;
+            p_cb->rc_acp_idx = (p_rcb - p_cb->rcb) + 1;
+            APPL_TRACE_DEBUG("switching RCB rc_acp_handle:%d idx:%d",
+                               p_cb->rc_acp_handle, p_cb->rc_acp_idx);
+        }
+    }
+
+    p_cb->rcb[i].shdl = shdl;
+    rc_open.rc_handle = i;
+    APPL_TRACE_ERROR("bta_av_rc_opened rcb[%d] shdl:%d lidx:%d/%d",
+            i, shdl, p_cb->rcb[i].lidx, p_cb->lcb[BTA_AV_NUM_LINKS].lidx);
+    p_cb->rcb[i].status |= BTA_AV_RC_CONN_MASK;
+
+    if (!shdl && 0 == p_cb->lcb[BTA_AV_NUM_LINKS].lidx)
+    {
+        /* no associated SCB -> connected to an RC only device
+         * update the index to the extra LCB */
+        p_lcb = &p_cb->lcb[BTA_AV_NUM_LINKS];
+        bdcpy(p_lcb->addr, p_data->rc_conn_chg.peer_addr);
+        APPL_TRACE_DEBUG("rc_only bd_addr:%02x-%02x-%02x-%02x-%02x-%02x",
+                      p_lcb->addr[0], p_lcb->addr[1],
+                      p_lcb->addr[2], p_lcb->addr[3],
+                      p_lcb->addr[4], p_lcb->addr[5]);
+        p_lcb->lidx = BTA_AV_NUM_LINKS + 1;
+            p_cb->rcb[i].lidx = p_lcb->lidx;
+        p_lcb->conn_msk = 1;
+        APPL_TRACE_ERROR("rcb[%d].lidx=%d, lcb.conn_msk=x%x",
+            i, p_cb->rcb[i].lidx, p_lcb->conn_msk);
+        disc = p_data->rc_conn_chg.handle|BTA_AV_CHNL_MSK;
+    }
+
+    bdcpy(rc_open.peer_addr, p_data->rc_conn_chg.peer_addr);
+    rc_open.peer_features = p_cb->rcb[i].peer_features;
+    rc_open.status = BTA_AV_SUCCESS;
+    APPL_TRACE_DEBUG("local features:x%x peer_features:x%x", p_cb->features,
+                      rc_open.peer_features);
+    if (rc_open.peer_features == 0)
+    {
+        /* we have not done SDP on peer RC capabilities.
+         * peer must have initiated the RC connection
+         * We Don't have SDP records of Peer, so we by
+         * default will take values depending upon registered
+         * features */
+        if (p_cb->features & BTA_AV_FEAT_RCTG)
+            rc_open.peer_features |= BTA_AV_FEAT_RCCT;
+        bta_av_rc_disc(disc);
+    }
+    (*p_cb->p_cback)(BTA_AV_RC_OPEN_EVT, (tBTA_AV *) &rc_open);
+
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_rc_remote_cmd
+**
+** Description      Send an AVRCP remote control command.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_rc_remote_cmd(tBTA_AV_CB *p_cb, tBTA_AV_DATA *p_data)
+{
+    tBTA_AV_RCB    *p_rcb;
+    if (p_cb->features & BTA_AV_FEAT_RCCT)
+    {
+        if (p_data->hdr.layer_specific < BTA_AV_NUM_RCB)
+        {
+            p_rcb = &p_cb->rcb[p_data->hdr.layer_specific];
+            if (p_rcb->status & BTA_AV_RC_CONN_MASK)
+            {
+                AVRC_PassCmd(p_rcb->handle, p_data->api_remote_cmd.label,
+                     &p_data->api_remote_cmd.msg);
+            }
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_rc_vendor_cmd
+**
+** Description      Send an AVRCP vendor specific command.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_rc_vendor_cmd(tBTA_AV_CB *p_cb, tBTA_AV_DATA *p_data)
+{
+    tBTA_AV_RCB    *p_rcb;
+    if ( (p_cb->features & (BTA_AV_FEAT_RCCT | BTA_AV_FEAT_VENDOR)) ==
+         (BTA_AV_FEAT_RCCT | BTA_AV_FEAT_VENDOR))
+    {
+        if (p_data->hdr.layer_specific < BTA_AV_NUM_RCB)
+        {
+            p_rcb = &p_cb->rcb[p_data->hdr.layer_specific];
+            AVRC_VendorCmd(p_rcb->handle, p_data->api_vendor.label, &p_data->api_vendor.msg);
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_rc_vendor_rsp
+**
+** Description      Send an AVRCP vendor specific response.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_rc_vendor_rsp(tBTA_AV_CB *p_cb, tBTA_AV_DATA *p_data)
+{
+    tBTA_AV_RCB    *p_rcb;
+    if ( (p_cb->features & (BTA_AV_FEAT_RCTG | BTA_AV_FEAT_VENDOR)) ==
+         (BTA_AV_FEAT_RCTG | BTA_AV_FEAT_VENDOR))
+    {
+        if (p_data->hdr.layer_specific < BTA_AV_NUM_RCB)
+        {
+            p_rcb = &p_cb->rcb[p_data->hdr.layer_specific];
+            AVRC_VendorRsp(p_rcb->handle, p_data->api_vendor.label, &p_data->api_vendor.msg);
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_rc_meta_rsp
+**
+** Description      Send an AVRCP metadata/advanced control command/response.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_rc_meta_rsp(tBTA_AV_CB *p_cb, tBTA_AV_DATA *p_data)
+{
+    tBTA_AV_RCB *p_rcb;
+    BOOLEAN         do_free = TRUE;
+
+    if ((p_cb->features & BTA_AV_FEAT_METADATA) && (p_data->hdr.layer_specific < BTA_AV_NUM_RCB))
+    {
+        if ((p_data->api_meta_rsp.is_rsp && (p_cb->features & BTA_AV_FEAT_RCTG)) ||
+            (!p_data->api_meta_rsp.is_rsp && (p_cb->features & BTA_AV_FEAT_RCCT)) )
+        {
+            p_rcb = &p_cb->rcb[p_data->hdr.layer_specific];
+            if (p_rcb->handle != BTA_AV_RC_HANDLE_NONE) {
+                AVRC_MsgReq(p_rcb->handle, p_data->api_meta_rsp.label,
+                            p_data->api_meta_rsp.rsp_code,
+                            p_data->api_meta_rsp.p_pkt);
+                do_free = FALSE;
+            }
+        }
+    }
+
+    if (do_free)
+        osi_free_and_reset((void **)&p_data->api_meta_rsp.p_pkt);
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_rc_free_rsp
+**
+** Description      free an AVRCP metadata command buffer.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_rc_free_rsp (tBTA_AV_CB *p_cb, tBTA_AV_DATA *p_data)
+{
+    UNUSED(p_cb);
+    osi_free_and_reset((void **)&p_data->api_meta_rsp.p_pkt);
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_rc_meta_req
+**
+** Description      Send an AVRCP metadata command.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_rc_free_msg (tBTA_AV_CB *p_cb, tBTA_AV_DATA *p_data)
+{
+    UNUSED(p_cb);
+    UNUSED(p_data);
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_chk_notif_evt_id
+**
+** Description      make sure the requested player id is valid.
+**
+** Returns          BTA_AV_STS_NO_RSP, if no error
+**
+*******************************************************************************/
+static tAVRC_STS bta_av_chk_notif_evt_id(tAVRC_MSG_VENDOR *p_vendor)
+{
+    tAVRC_STS   status = BTA_AV_STS_NO_RSP;
+    UINT8       xx;
+    UINT16      u16;
+    UINT8       *p = p_vendor->p_vendor_data + 2;
+
+    BE_STREAM_TO_UINT16 (u16, p);
+    /* double check the fixed length */
+    if ((u16 != 5) || (p_vendor->vendor_len != 9))
+    {
+        status = AVRC_STS_INTERNAL_ERR;
+    }
+    else
+    {
+        /* make sure the player_id is valid */
+        for (xx=0; xx<p_bta_av_cfg->num_evt_ids; xx++)
+        {
+            if (*p == p_bta_av_cfg->p_meta_evt_ids[xx])
+            {
+                break;
+            }
+        }
+        if (xx == p_bta_av_cfg->num_evt_ids)
+        {
+            status = AVRC_STS_BAD_PARAM;
+        }
+    }
+
+    return status;
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_proc_meta_cmd
+**
+** Description      Process an AVRCP metadata command from the peer.
+**
+** Returns          TRUE to respond immediately
+**
+*******************************************************************************/
+tBTA_AV_EVT bta_av_proc_meta_cmd(tAVRC_RESPONSE  *p_rc_rsp, tBTA_AV_RC_MSG *p_msg, UINT8 *p_ctype)
+{
+    tBTA_AV_EVT evt = BTA_AV_META_MSG_EVT;
+    UINT8       u8, pdu, *p;
+    UINT16      u16;
+    tAVRC_MSG_VENDOR    *p_vendor = &p_msg->msg.vendor;
+
+#if (AVRC_METADATA_INCLUDED == TRUE)
+
+    pdu = *(p_vendor->p_vendor_data);
+    p_rc_rsp->pdu = pdu;
+    *p_ctype = AVRC_RSP_REJ;
+    /* Metadata messages only use PANEL sub-unit type */
+    if (p_vendor->hdr.subunit_type != AVRC_SUB_PANEL)
+    {
+        APPL_TRACE_DEBUG("SUBUNIT must be PANEL");
+        /* reject it */
+        evt=0;
+        p_vendor->hdr.ctype = BTA_AV_RSP_NOT_IMPL;
+        AVRC_VendorRsp(p_msg->handle, p_msg->label, &p_msg->msg.vendor);
+    }
+    else if (!AVRC_IsValidAvcType(pdu, p_vendor->hdr.ctype) )
+    {
+        APPL_TRACE_DEBUG("Invalid pdu/ctype: 0x%x, %d", pdu, p_vendor->hdr.ctype);
+        /* reject invalid message without reporting to app */
+        evt = 0;
+        p_rc_rsp->rsp.status = AVRC_STS_BAD_CMD;
+    }
+    else
+    {
+        switch (pdu)
+        {
+        case AVRC_PDU_GET_CAPABILITIES:
+            /* process GetCapabilities command without reporting the event to app */
+            evt = 0;
+            u8 = *(p_vendor->p_vendor_data + 4);
+            p = p_vendor->p_vendor_data + 2;
+            p_rc_rsp->get_caps.capability_id = u8;
+            BE_STREAM_TO_UINT16 (u16, p);
+            if ((u16 != 1) || (p_vendor->vendor_len != 5))
+            {
+                p_rc_rsp->get_caps.status = AVRC_STS_INTERNAL_ERR;
+            }
+            else
+            {
+                p_rc_rsp->get_caps.status = AVRC_STS_NO_ERROR;
+                if (u8 == AVRC_CAP_COMPANY_ID)
+                {
+                    *p_ctype = AVRC_RSP_IMPL_STBL;
+                    p_rc_rsp->get_caps.count = p_bta_av_cfg->num_co_ids;
+                    memcpy(p_rc_rsp->get_caps.param.company_id, p_bta_av_cfg->p_meta_co_ids,
+                           (p_bta_av_cfg->num_co_ids << 2));
+                }
+                else if (u8 == AVRC_CAP_EVENTS_SUPPORTED)
+                {
+                    *p_ctype = AVRC_RSP_IMPL_STBL;
+                    p_rc_rsp->get_caps.count = p_bta_av_cfg->num_evt_ids;
+                    memcpy(p_rc_rsp->get_caps.param.event_id, p_bta_av_cfg->p_meta_evt_ids,
+                           p_bta_av_cfg->num_evt_ids);
+                }
+                else
+                {
+                    APPL_TRACE_DEBUG("Invalid capability ID: 0x%x", u8);
+                    /* reject - unknown capability ID */
+                    p_rc_rsp->get_caps.status = AVRC_STS_BAD_PARAM;
+                }
+            }
+            break;
+
+        case AVRC_PDU_REGISTER_NOTIFICATION:
+            /* make sure the event_id is implemented */
+            p_rc_rsp->rsp.status = bta_av_chk_notif_evt_id (p_vendor);
+            if (p_rc_rsp->rsp.status != BTA_AV_STS_NO_RSP)
+                evt = 0;
+            break;
+
+        }
+    }
+#else
+    APPL_TRACE_DEBUG("AVRCP 1.3 Metadata not supporteed. Reject command.");
+    /* reject invalid message without reporting to app */
+    evt = 0;
+    p_rc_rsp->rsp.status = AVRC_STS_BAD_CMD;
+#endif
+
+    return evt;
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_rc_msg
+**
+** Description      Process an AVRCP message from the peer.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_rc_msg(tBTA_AV_CB *p_cb, tBTA_AV_DATA *p_data)
+{
+    tBTA_AV_EVT evt = 0;
+    tBTA_AV     av;
+    BT_HDR      *p_pkt = NULL;
+    tAVRC_MSG_VENDOR    *p_vendor = &p_data->rc_msg.msg.vendor;
+    BOOLEAN is_inquiry =
+        ((p_data->rc_msg.msg.hdr.ctype == AVRC_CMD_SPEC_INQ) ||
+         p_data->rc_msg.msg.hdr.ctype == AVRC_CMD_GEN_INQ);
+#if (AVRC_METADATA_INCLUDED == TRUE)
+    UINT8       ctype = 0;
+    tAVRC_RESPONSE  rc_rsp;
+
+    rc_rsp.rsp.status = BTA_AV_STS_NO_RSP;
+#endif
+
+    if (p_data->rc_msg.opcode == AVRC_OP_PASS_THRU)
+    {
+        /* if this is a pass thru command */
+        if ((p_data->rc_msg.msg.hdr.ctype == AVRC_CMD_CTRL) ||
+            (p_data->rc_msg.msg.hdr.ctype == AVRC_CMD_SPEC_INQ) ||
+            (p_data->rc_msg.msg.hdr.ctype == AVRC_CMD_GEN_INQ)
+            )
+        {
+            /* check if operation is supported */
+            char avrcp_ct_support[PROPERTY_VALUE_MAX];
+            osi_property_get("bluetooth.pts.avrcp_ct.support", avrcp_ct_support, "false");
+            if (p_data->rc_msg.msg.pass.op_id == AVRC_ID_VENDOR)
+            {
+                p_data->rc_msg.msg.hdr.ctype = BTA_AV_RSP_NOT_IMPL;
+#if (AVRC_METADATA_INCLUDED == TRUE)
+                if (p_cb->features & BTA_AV_FEAT_METADATA)
+                    p_data->rc_msg.msg.hdr.ctype =
+                        bta_av_group_navi_supported(p_data->rc_msg.msg.pass.pass_len,
+                        p_data->rc_msg.msg.pass.p_pass_data, is_inquiry);
+#endif
+            }
+#if (AVRC_CTLR_INCLUDED == TRUE)
+            else if (((p_data->rc_msg.msg.pass.op_id == AVRC_ID_VOL_UP)||
+                      (p_data->rc_msg.msg.pass.op_id == AVRC_ID_VOL_DOWN)) &&
+                     !strcmp(avrcp_ct_support, "true"))
+            {
+                p_data->rc_msg.msg.hdr.ctype = BTA_AV_RSP_ACCEPT;
+            }
+#endif
+            else
+            {
+                p_data->rc_msg.msg.hdr.ctype =
+                    bta_av_op_supported(p_data->rc_msg.msg.pass.op_id, is_inquiry);
+            }
+
+            APPL_TRACE_DEBUG("ctype %d",p_data->rc_msg.msg.hdr.ctype)
+
+            /* send response */
+            if (p_data->rc_msg.msg.hdr.ctype != BTA_AV_RSP_INTERIM)
+                AVRC_PassRsp(p_data->rc_msg.handle, p_data->rc_msg.label, &p_data->rc_msg.msg.pass);
+
+            /* set up for callback if supported */
+            if (p_data->rc_msg.msg.hdr.ctype == BTA_AV_RSP_ACCEPT || p_data->rc_msg.msg.hdr.ctype == BTA_AV_RSP_INTERIM)
+            {
+                evt = BTA_AV_REMOTE_CMD_EVT;
+                av.remote_cmd.rc_id = p_data->rc_msg.msg.pass.op_id;
+                av.remote_cmd.key_state = p_data->rc_msg.msg.pass.state;
+                av.remote_cmd.p_data = p_data->rc_msg.msg.pass.p_pass_data;
+                av.remote_cmd.len = p_data->rc_msg.msg.pass.pass_len;
+                memcpy(&av.remote_cmd.hdr, &p_data->rc_msg.msg.hdr, sizeof (tAVRC_HDR));
+                av.remote_cmd.label = p_data->rc_msg.label;
+            }
+        }
+        /* else if this is a pass thru response */
+        /* id response type is not impl, we have to release label */
+        else if (p_data->rc_msg.msg.hdr.ctype >= AVRC_RSP_NOT_IMPL)
+        {
+            /* set up for callback */
+            evt = BTA_AV_REMOTE_RSP_EVT;
+            av.remote_rsp.rc_id = p_data->rc_msg.msg.pass.op_id;
+            av.remote_rsp.key_state = p_data->rc_msg.msg.pass.state;
+            av.remote_rsp.rsp_code = p_data->rc_msg.msg.hdr.ctype;
+            av.remote_rsp.label = p_data->rc_msg.label;
+
+            /* If this response is for vendor unique command  */
+            if ((p_data->rc_msg.msg.pass.op_id == AVRC_ID_VENDOR) &&
+              (p_data->rc_msg.msg.pass.pass_len > 0))
+            {
+                av.remote_rsp.p_data =
+                    (UINT8 *)osi_malloc(p_data->rc_msg.msg.pass.pass_len);
+                APPL_TRACE_DEBUG("Vendor Unique data len = %d",
+                                 p_data->rc_msg.msg.pass.pass_len);
+                memcpy(av.remote_rsp.p_data,p_data->rc_msg.msg.pass.p_pass_data,
+                       p_data->rc_msg.msg.pass.pass_len);
+            }
+        }
+        /* must be a bad ctype -> reject*/
+        else
+        {
+            p_data->rc_msg.msg.hdr.ctype = BTA_AV_RSP_REJ;
+            AVRC_PassRsp(p_data->rc_msg.handle, p_data->rc_msg.label, &p_data->rc_msg.msg.pass);
+        }
+    }
+    /* else if this is a vendor specific command or response */
+    else if (p_data->rc_msg.opcode == AVRC_OP_VENDOR)
+    {
+        /* set up for callback */
+        av.vendor_cmd.code = p_data->rc_msg.msg.hdr.ctype;
+        av.vendor_cmd.company_id = p_vendor->company_id;
+        av.vendor_cmd.label = p_data->rc_msg.label;
+        av.vendor_cmd.p_data = p_vendor->p_vendor_data;
+        av.vendor_cmd.len = p_vendor->vendor_len;
+
+        /* if configured to support vendor specific and it's a command */
+        if ((p_cb->features & BTA_AV_FEAT_VENDOR)  &&
+            p_data->rc_msg.msg.hdr.ctype <= AVRC_CMD_GEN_INQ)
+        {
+#if (AVRC_METADATA_INCLUDED == TRUE)
+            if ((p_cb->features & BTA_AV_FEAT_METADATA) &&
+               (p_vendor->company_id == AVRC_CO_METADATA))
+            {
+                av.meta_msg.p_msg = &p_data->rc_msg.msg;
+                evt = bta_av_proc_meta_cmd (&rc_rsp, &p_data->rc_msg, &ctype);
+            }
+            else
+#endif
+                evt = BTA_AV_VENDOR_CMD_EVT;
+        }
+        /* else if configured to support vendor specific and it's a response */
+        else if ((p_cb->features & BTA_AV_FEAT_VENDOR) &&
+                 p_data->rc_msg.msg.hdr.ctype >= AVRC_RSP_NOT_IMPL)
+        {
+#if (AVRC_METADATA_INCLUDED == TRUE)
+            if ((p_cb->features & BTA_AV_FEAT_METADATA) &&
+               (p_vendor->company_id == AVRC_CO_METADATA))
+            {
+                av.meta_msg.p_msg = &p_data->rc_msg.msg;
+                evt = BTA_AV_META_MSG_EVT;
+            }
+            else
+#endif
+                evt = BTA_AV_VENDOR_RSP_EVT;
+
+        }
+        /* else if not configured to support vendor specific and it's a command */
+        else if (!(p_cb->features & BTA_AV_FEAT_VENDOR)  &&
+            p_data->rc_msg.msg.hdr.ctype <= AVRC_CMD_GEN_INQ)
+        {
+           if (p_data->rc_msg.msg.vendor.p_vendor_data[0] == AVRC_PDU_INVALID)
+           {
+           /* reject it */
+              p_data->rc_msg.msg.hdr.ctype = BTA_AV_RSP_REJ;
+              p_data->rc_msg.msg.vendor.p_vendor_data[4] = AVRC_STS_BAD_CMD;
+           }
+           else
+              p_data->rc_msg.msg.hdr.ctype = BTA_AV_RSP_NOT_IMPL;
+           AVRC_VendorRsp(p_data->rc_msg.handle, p_data->rc_msg.label, &p_data->rc_msg.msg.vendor);
+        }
+    }
+#if (AVRC_METADATA_INCLUDED == TRUE)
+    if (evt == 0 && rc_rsp.rsp.status != BTA_AV_STS_NO_RSP)
+    {
+        if (!p_pkt)
+        {
+            rc_rsp.rsp.opcode = p_data->rc_msg.opcode;
+            AVRC_BldResponse (0, &rc_rsp, &p_pkt);
+        }
+        if (p_pkt)
+            AVRC_MsgReq (p_data->rc_msg.handle, p_data->rc_msg.label, ctype, p_pkt);
+    }
+#endif
+
+    /* call callback */
+    if (evt != 0)
+    {
+        av.remote_cmd.rc_handle = p_data->rc_msg.handle;
+        (*p_cb->p_cback)(evt, &av);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_rc_close
+**
+** Description      close the specified AVRC handle.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_rc_close (tBTA_AV_CB *p_cb, tBTA_AV_DATA *p_data)
+{
+    UINT16 handle = p_data->hdr.layer_specific;
+    tBTA_AV_SCB  *p_scb;
+    tBTA_AV_RCB *p_rcb;
+
+    if (handle < BTA_AV_NUM_RCB)
+    {
+        p_rcb = &p_cb->rcb[handle];
+
+        APPL_TRACE_DEBUG("bta_av_rc_close handle: %d, status=0x%x", p_rcb->handle, p_rcb->status);
+        if (p_rcb->handle != BTA_AV_RC_HANDLE_NONE)
+        {
+            if (p_rcb->shdl)
+            {
+                p_scb = bta_av_cb.p_scb[p_rcb->shdl - 1];
+                if (p_scb)
+                {
+                    /* just in case the RC timer is active
+                    if (bta_av_cb.features & BTA_AV_FEAT_RCCT &&
+                       p_scb->chnl == BTA_AV_CHNL_AUDIO) */
+                    alarm_cancel(p_scb->avrc_ct_timer);
+                }
+            }
+
+            AVRC_Close(p_rcb->handle);
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_get_shdl
+**
+** Returns          The index to p_scb[]
+**
+*******************************************************************************/
+static UINT8 bta_av_get_shdl(tBTA_AV_SCB *p_scb)
+{
+    int     i;
+    UINT8   shdl = 0;
+    /* find the SCB & stop the timer */
+    for(i=0; i<BTA_AV_NUM_STRS; i++)
+    {
+        if (p_scb == bta_av_cb.p_scb[i])
+        {
+            shdl = i+1;
+            break;
+        }
+    }
+    return shdl;
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_stream_chg
+**
+** Description      audio streaming status changed.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_stream_chg(tBTA_AV_SCB *p_scb, BOOLEAN started)
+{
+    UINT8   started_msk;
+    int     i;
+    UINT8   *p_streams;
+    BOOLEAN no_streams = FALSE;
+    tBTA_AV_SCB *p_scbi;
+
+    started_msk = BTA_AV_HNDL_TO_MSK(p_scb->hdi);
+    APPL_TRACE_DEBUG ("bta_av_stream_chg started:%d started_msk:x%x chnl:x%x", started,
+                                                  started_msk, p_scb->chnl);
+    if (BTA_AV_CHNL_AUDIO == p_scb->chnl)
+        p_streams = &bta_av_cb.audio_streams;
+    else
+        p_streams = &bta_av_cb.video_streams;
+
+    if (started)
+    {
+        /* Let L2CAP know this channel is processed with high priority */
+        L2CA_SetAclPriority(p_scb->peer_addr, L2CAP_PRIORITY_HIGH);
+        (*p_streams) |= started_msk;
+    }
+    else
+    {
+        (*p_streams) &= ~started_msk;
+    }
+
+    if (!started)
+    {
+        i=0;
+        if (BTA_AV_CHNL_AUDIO == p_scb->chnl)
+        {
+            if (bta_av_cb.video_streams == 0)
+                no_streams = TRUE;
+        }
+        else
+        {
+            no_streams = TRUE;
+            if ( bta_av_cb.audio_streams )
+            {
+                for (; i<BTA_AV_NUM_STRS; i++)
+                {
+                    p_scbi = bta_av_cb.p_scb[i];
+                    /* scb is used and started */
+                    if ( p_scbi && (bta_av_cb.audio_streams & BTA_AV_HNDL_TO_MSK(i))
+                        && bdcmp(p_scbi->peer_addr, p_scb->peer_addr) == 0)
+                    {
+                        no_streams = FALSE;
+                        break;
+                    }
+                }
+
+            }
+        }
+
+        APPL_TRACE_DEBUG ("no_streams:%d i:%d, audio_streams:x%x, video_streams:x%x", no_streams, i,
+                           bta_av_cb.audio_streams, bta_av_cb.video_streams);
+        if (no_streams)
+        {
+            /* Let L2CAP know this channel is processed with low priority */
+            L2CA_SetAclPriority(p_scb->peer_addr, L2CAP_PRIORITY_NORMAL);
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_conn_chg
+**
+** Description      connetion status changed.
+**                  Open an AVRCP acceptor channel, if new conn.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_conn_chg(tBTA_AV_DATA *p_data)
+{
+    tBTA_AV_CB   *p_cb = &bta_av_cb;
+    tBTA_AV_SCB     *p_scb = NULL;
+    tBTA_AV_SCB     *p_scbi;
+    UINT8   mask;
+    UINT8   conn_msk;
+    UINT8   old_msk;
+    int i;
+    int index = (p_data->hdr.layer_specific & BTA_AV_HNDL_MSK) - 1;
+    tBTA_AV_LCB *p_lcb;
+    tBTA_AV_LCB *p_lcb_rc;
+    tBTA_AV_RCB *p_rcb, *p_rcb2;
+    BOOLEAN     chk_restore = FALSE;
+
+    /* Validate array index*/
+    if (index < BTA_AV_NUM_STRS)
+    {
+        p_scb = p_cb->p_scb[index];
+    }
+    mask = BTA_AV_HNDL_TO_MSK(index);
+    p_lcb = bta_av_find_lcb(p_data->conn_chg.peer_addr, BTA_AV_LCB_FIND);
+    conn_msk = 1 << (index + 1);
+    if (p_data->conn_chg.is_up)
+    {
+        /* set the conned mask for this channel */
+        if (p_scb)
+        {
+            if (p_lcb)
+            {
+                p_lcb->conn_msk |= conn_msk;
+                for (i=0; i<BTA_AV_NUM_RCB; i++)
+                {
+                    if (bta_av_cb.rcb[i].lidx == p_lcb->lidx)
+                    {
+                        bta_av_cb.rcb[i].shdl = index + 1;
+                        APPL_TRACE_DEBUG("conn_chg up[%d]: %d, status=0x%x, shdl:%d, lidx:%d", i,
+                                          bta_av_cb.rcb[i].handle, bta_av_cb.rcb[i].status,
+                                          bta_av_cb.rcb[i].shdl, bta_av_cb.rcb[i].lidx);
+                        break;
+                    }
+                }
+            }
+            if (p_scb->chnl == BTA_AV_CHNL_AUDIO)
+            {
+                old_msk = p_cb->conn_audio;
+                p_cb->conn_audio |= mask;
+            }
+            else
+            {
+                old_msk = p_cb->conn_video;
+                p_cb->conn_video |= mask;
+            }
+
+            if ((old_msk & mask) == 0)
+            {
+                /* increase the audio open count, if not set yet */
+                bta_av_cb.audio_open_cnt++;
+            }
+
+            APPL_TRACE_DEBUG("rc_acp_handle:%d rc_acp_idx:%d", p_cb->rc_acp_handle, p_cb->rc_acp_idx);
+            /* check if the AVRCP ACP channel is already connected */
+            if (p_lcb && p_cb->rc_acp_handle != BTA_AV_RC_HANDLE_NONE && p_cb->rc_acp_idx)
+            {
+                p_lcb_rc = &p_cb->lcb[BTA_AV_NUM_LINKS];
+                APPL_TRACE_DEBUG("rc_acp is connected && conn_chg on same addr p_lcb_rc->conn_msk:x%x",
+                                  p_lcb_rc->conn_msk);
+                /* check if the RC is connected to the scb addr */
+                APPL_TRACE_DEBUG ("p_lcb_rc->addr: %02x:%02x:%02x:%02x:%02x:%02x",
+                       p_lcb_rc->addr[0], p_lcb_rc->addr[1], p_lcb_rc->addr[2], p_lcb_rc->addr[3],
+                       p_lcb_rc->addr[4], p_lcb_rc->addr[5]);
+                APPL_TRACE_DEBUG ("conn_chg.peer_addr: %02x:%02x:%02x:%02x:%02x:%02x",
+                       p_data->conn_chg.peer_addr[0], p_data->conn_chg.peer_addr[1],
+                       p_data->conn_chg.peer_addr[2],
+                       p_data->conn_chg.peer_addr[3], p_data->conn_chg.peer_addr[4],
+                       p_data->conn_chg.peer_addr[5]);
+                if (p_lcb_rc->conn_msk && bdcmp(p_lcb_rc->addr, p_data->conn_chg.peer_addr) == 0)
+                {
+                    /* AVRCP is already connected.
+                     * need to update the association betwen SCB and RCB */
+                    p_lcb_rc->conn_msk = 0; /* indicate RC ONLY is not connected */
+                    p_lcb_rc->lidx = 0;
+                    p_scb->rc_handle = p_cb->rc_acp_handle;
+                    p_rcb = &p_cb->rcb[p_cb->rc_acp_idx - 1];
+                    p_rcb->shdl = bta_av_get_shdl(p_scb);
+                    APPL_TRACE_DEBUG("update rc_acp shdl:%d/%d srch:%d", index + 1, p_rcb->shdl,
+                                      p_scb->rc_handle );
+
+                    p_rcb2 = bta_av_get_rcb_by_shdl(p_rcb->shdl);
+                    if (p_rcb2)
+                    {
+                        /* found the RCB that was created to associated with this SCB */
+                        p_cb->rc_acp_handle = p_rcb2->handle;
+                        p_cb->rc_acp_idx = (p_rcb2 - p_cb->rcb) + 1;
+                        APPL_TRACE_DEBUG("new rc_acp_handle:%d, idx:%d", p_cb->rc_acp_handle,
+                                           p_cb->rc_acp_idx);
+                        p_rcb2->lidx = (BTA_AV_NUM_LINKS + 1);
+                        APPL_TRACE_DEBUG("rc2 handle:%d lidx:%d/%d",p_rcb2->handle, p_rcb2->lidx,
+                                          p_cb->lcb[p_rcb2->lidx-1].lidx);
+                    }
+                    p_rcb->lidx = p_lcb->lidx;
+                    APPL_TRACE_DEBUG("rc handle:%d lidx:%d/%d",p_rcb->handle, p_rcb->lidx,
+                                      p_cb->lcb[p_rcb->lidx-1].lidx);
+                }
+            }
+        }
+    }
+    else
+    {
+        if ((p_cb->conn_audio & mask) && bta_av_cb.audio_open_cnt)
+        {
+            /* this channel is still marked as open. decrease the count */
+            bta_av_cb.audio_open_cnt--;
+        }
+
+        /* clear the conned mask for this channel */
+        p_cb->conn_audio &= ~mask;
+        p_cb->conn_video &= ~mask;
+        if (p_scb)
+        {
+            /* the stream is closed.
+             * clear the peer address, so it would not mess up the AVRCP for the next round of operation */
+            bdcpy(p_scb->peer_addr, bd_addr_null);
+            if (p_scb->chnl == BTA_AV_CHNL_AUDIO)
+            {
+                if (p_lcb)
+                {
+                    p_lcb->conn_msk &= ~conn_msk;
+                }
+                /* audio channel is down. make sure the INT channel is down */
+                /* just in case the RC timer is active
+                if (p_cb->features & BTA_AV_FEAT_RCCT) */
+                {
+                    alarm_cancel(p_scb->avrc_ct_timer);
+                }
+                /* one audio channel goes down. check if we need to restore high priority */
+                chk_restore = TRUE;
+            }
+        }
+
+        APPL_TRACE_DEBUG("bta_av_conn_chg shdl:%d", index + 1);
+        for (i=0; i<BTA_AV_NUM_RCB; i++)
+        {
+            APPL_TRACE_DEBUG("conn_chg dn[%d]: %d, status=0x%x, shdl:%d, lidx:%d", i,
+                              bta_av_cb.rcb[i].handle, bta_av_cb.rcb[i].status,
+                              bta_av_cb.rcb[i].shdl, bta_av_cb.rcb[i].lidx);
+            if (bta_av_cb.rcb[i].shdl == index + 1)
+            {
+                bta_av_del_rc(&bta_av_cb.rcb[i]);
+                break;
+            }
+        }
+
+        if (p_cb->conn_audio == 0 && p_cb->conn_video == 0)
+        {
+            /* if both channels are not connected,
+             * close all RC channels */
+            bta_av_close_all_rc(p_cb);
+        }
+
+        /* if the AVRCP is no longer listening, create the listening channel */
+        if (bta_av_cb.rc_acp_handle == BTA_AV_RC_HANDLE_NONE && bta_av_cb.features & BTA_AV_FEAT_RCTG)
+            bta_av_rc_create(&bta_av_cb, AVCT_ACP, 0, BTA_AV_NUM_LINKS + 1);
+    }
+
+    APPL_TRACE_DEBUG("bta_av_conn_chg audio:%x video:%x up:%d conn_msk:0x%x chk_restore:%d audio_open_cnt:%d",
+        p_cb->conn_audio, p_cb->conn_video, p_data->conn_chg.is_up, conn_msk, chk_restore, p_cb->audio_open_cnt);
+
+    if (chk_restore)
+    {
+        if (p_cb->audio_open_cnt == 1)
+        {
+            /* one audio channel goes down and there's one audio channel remains open.
+             * restore the switch role in default link policy */
+            bta_sys_set_default_policy(BTA_ID_AV, HCI_ENABLE_MASTER_SLAVE_SWITCH);
+            /* allow role switch, if this is the last connection */
+            bta_av_restore_switch();
+        }
+        if (p_cb->audio_open_cnt)
+        {
+            /* adjust flush timeout settings to longer period */
+            for (i=0; i<BTA_AV_NUM_STRS; i++)
+            {
+                p_scbi = bta_av_cb.p_scb[i];
+                if (p_scbi && p_scbi->chnl == BTA_AV_CHNL_AUDIO && p_scbi->co_started)
+                {
+                    /* may need to update the flush timeout of this already started stream */
+                    if (p_scbi->co_started != bta_av_cb.audio_open_cnt)
+                    {
+                        p_scbi->co_started = bta_av_cb.audio_open_cnt;
+                        L2CA_SetFlushTimeout(p_scbi->peer_addr, p_bta_av_cfg->p_audio_flush_to[p_scbi->co_started - 1] );
+                    }
+                }
+            }
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_disable
+**
+** Description      disable AV.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_disable(tBTA_AV_CB *p_cb, tBTA_AV_DATA *p_data)
+{
+    BT_HDR  hdr;
+    UINT16  xx;
+    UNUSED(p_data);
+
+    p_cb->disabling = TRUE;
+
+    bta_av_close_all_rc(p_cb);
+
+    osi_free_and_reset((void **)&p_cb->p_disc_db);
+
+    /* disable audio/video - de-register all channels,
+     * expect BTA_AV_DEREG_COMP_EVT when deregister is complete */
+    for(xx=0; xx<BTA_AV_NUM_STRS; xx++)
+    {
+        hdr.layer_specific = xx + 1;
+        bta_av_api_deregister((tBTA_AV_DATA *)&hdr);
+    }
+
+    alarm_free(p_cb->link_signalling_timer);
+    p_cb->link_signalling_timer = NULL;
+    alarm_free(p_cb->accept_signalling_timer);
+    p_cb->accept_signalling_timer = NULL;
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_api_disconnect
+**
+** Description      .
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_api_disconnect(tBTA_AV_DATA *p_data)
+{
+    AVDT_DisconnectReq(p_data->api_discnt.bd_addr, bta_av_conn_cback);
+    alarm_cancel(bta_av_cb.link_signalling_timer);
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_sig_chg
+**
+** Description      process AVDT signal channel up/down.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_sig_chg(tBTA_AV_DATA *p_data)
+{
+    UINT16 event = p_data->str_msg.hdr.layer_specific;
+    tBTA_AV_CB   *p_cb = &bta_av_cb;
+    UINT32 xx;
+    UINT8   mask;
+    tBTA_AV_LCB *p_lcb = NULL;
+
+    APPL_TRACE_DEBUG("bta_av_sig_chg event: %d", event);
+    if (event == AVDT_CONNECT_IND_EVT)
+    {
+        p_lcb = bta_av_find_lcb(p_data->str_msg.bd_addr, BTA_AV_LCB_FIND);
+        if (!p_lcb)
+        {
+            /* if the address does not have an LCB yet, alloc one */
+            for(xx=0; xx<BTA_AV_NUM_LINKS; xx++)
+            {
+                mask = 1 << xx;
+                APPL_TRACE_DEBUG("conn_lcb: 0x%x", p_cb->conn_lcb);
+
+                /* look for a p_lcb with its p_scb registered */
+                if ((!(mask & p_cb->conn_lcb)) && (p_cb->p_scb[xx] != NULL))
+                {
+                    p_lcb = &p_cb->lcb[xx];
+                    p_lcb->lidx = xx + 1;
+                    bdcpy(p_lcb->addr, p_data->str_msg.bd_addr);
+                    p_lcb->conn_msk = 0; /* clear the connect mask */
+                    /* start listening when the signal channel is open */
+                    if (p_cb->features & BTA_AV_FEAT_RCTG)
+                    {
+                        bta_av_rc_create(p_cb, AVCT_ACP, 0, p_lcb->lidx);
+                    }
+                    /* this entry is not used yet. */
+                    p_cb->conn_lcb |= mask;     /* mark it as used */
+                    APPL_TRACE_DEBUG("start sig timer %d", p_data->hdr.offset);
+                    if (p_data->hdr.offset == AVDT_ACP)
+                    {
+                        APPL_TRACE_DEBUG("Incoming L2CAP acquired, set state as incoming", NULL);
+                        bdcpy(p_cb->p_scb[xx]->peer_addr, p_data->str_msg.bd_addr);
+                        p_cb->p_scb[xx]->use_rc = TRUE;     /* allowing RC for incoming connection */
+                        bta_av_ssm_execute(p_cb->p_scb[xx], BTA_AV_ACP_CONNECT_EVT, p_data);
+
+                        /* The Pending Event should be sent as soon as the L2CAP signalling channel
+                         * is set up, which is NOW. Earlier this was done only after
+                         * BTA_AV_SIGNALLING_TIMEOUT_MS.
+                         * The following function shall send the event and start the recurring timer
+                         */
+                        bta_av_signalling_timer(NULL);
+
+                        /* Possible collision : need to avoid outgoing processing while the timer is running */
+                        p_cb->p_scb[xx]->coll_mask = BTA_AV_COLL_INC_TMR;
+                        alarm_set_on_queue(p_cb->accept_signalling_timer,
+                                           BTA_AV_ACCEPT_SIGNALLING_TIMEOUT_MS,
+                                           bta_av_accept_signalling_timer_cback,
+                                           UINT_TO_PTR(xx),
+                                           btu_bta_alarm_queue);
+                    }
+                    break;
+                }
+            }
+
+            /* check if we found something */
+            if (xx == BTA_AV_NUM_LINKS)
+            {
+                /* We do not have scb for this avdt connection.     */
+                /* Silently close the connection.                   */
+                APPL_TRACE_ERROR("av scb not available for avdt connection");
+                AVDT_DisconnectReq (p_data->str_msg.bd_addr, NULL);
+                return;
+            }
+        }
+    }
+#if ( defined BTA_AR_INCLUDED ) && (BTA_AR_INCLUDED == TRUE)
+    else if (event == BTA_AR_AVDT_CONN_EVT)
+    {
+        alarm_cancel(bta_av_cb.link_signalling_timer);
+    }
+#endif
+    else
+    {
+        /* disconnected. */
+        APPL_TRACE_DEBUG("%s: bta_av_cb.conn_lcb is %d", __func__, bta_av_cb.conn_lcb);
+
+        p_lcb = bta_av_find_lcb(p_data->str_msg.bd_addr, BTA_AV_LCB_FREE);
+        if (p_lcb && (p_lcb->conn_msk || bta_av_cb.conn_lcb))
+        {
+            APPL_TRACE_DEBUG("conn_msk: 0x%x", p_lcb->conn_msk);
+            /* clean up ssm  */
+            for(xx=0; xx < BTA_AV_NUM_STRS; xx++)
+            {
+                mask = 1 << (xx + 1);
+                if (((mask & p_lcb->conn_msk) || bta_av_cb.conn_lcb) && (p_cb->p_scb[xx]) &&
+                    (bdcmp(p_cb->p_scb[xx]->peer_addr, p_data->str_msg.bd_addr) == 0))
+                {
+                    APPL_TRACE_DEBUG("%s: Sending AVDT_DISCONNECT_EVT", __func__);
+                    bta_av_ssm_execute(p_cb->p_scb[xx], BTA_AV_AVDT_DISCONNECT_EVT, NULL);
+                }
+            }
+        }
+    }
+    APPL_TRACE_DEBUG("%s: sig_chg conn_lcb: 0x%x", __func__, p_cb->conn_lcb);
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_signalling_timer
+**
+** Description      process the signal channel timer. This timer is started
+**                  when the AVDTP signal channel is connected. If no profile
+**                  is connected, the timer goes off every
+**                  BTA_AV_SIGNALLING_TIMEOUT_MS.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_signalling_timer(tBTA_AV_DATA *p_data)
+{
+    tBTA_AV_CB   *p_cb = &bta_av_cb;
+    int     xx;
+    UINT8   mask;
+    tBTA_AV_LCB *p_lcb = NULL;
+    tBTA_AV_PEND pend;
+    UNUSED(p_data);
+
+    APPL_TRACE_DEBUG("%s", __func__);
+    for(xx=0; xx<BTA_AV_NUM_LINKS; xx++)
+    {
+        mask = 1 << xx;
+        if (mask & p_cb->conn_lcb)
+        {
+            /* this entry is used. check if it is connected */
+            p_lcb = &p_cb->lcb[xx];
+            if (!p_lcb->conn_msk) {
+                bta_sys_start_timer(p_cb->link_signalling_timer,
+                                    BTA_AV_SIGNALLING_TIMEOUT_MS,
+                                    BTA_AV_SIGNALLING_TIMER_EVT, 0);
+                bdcpy(pend.bd_addr, p_lcb->addr);
+                (*p_cb->p_cback)(BTA_AV_PENDING_EVT, (tBTA_AV *) &pend);
+            }
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_accept_signalling_timer_cback
+**
+** Description      Process the timeout when SRC is accepting connection
+**                  and SNK did not start signalling.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_av_accept_signalling_timer_cback(void *data)
+{
+    UINT32   inx = PTR_TO_UINT(data);
+    tBTA_AV_CB  *p_cb = &bta_av_cb;
+    tBTA_AV_SCB *p_scb = NULL;
+    if (inx < BTA_AV_NUM_STRS)
+    {
+        p_scb = p_cb->p_scb[inx];
+    }
+    if (p_scb)
+    {
+        APPL_TRACE_DEBUG("%s coll_mask = 0x%02X", __func__, p_scb->coll_mask);
+
+        if (p_scb->coll_mask & BTA_AV_COLL_INC_TMR)
+        {
+            p_scb->coll_mask &= ~BTA_AV_COLL_INC_TMR;
+
+            if (bta_av_is_scb_opening(p_scb))
+            {
+                if (p_scb->sdp_discovery_started)
+                {
+                    /* We are still doing SDP. Run the timer again. */
+                    p_scb->coll_mask |= BTA_AV_COLL_INC_TMR;
+
+                    alarm_set_on_queue(p_cb->accept_signalling_timer,
+                                       BTA_AV_ACCEPT_SIGNALLING_TIMEOUT_MS,
+                                       bta_av_accept_signalling_timer_cback,
+                                       UINT_TO_PTR(inx),
+                                       btu_bta_alarm_queue);
+                }
+                else
+                {
+                    /* SNK did not start signalling, resume signalling process. */
+                    bta_av_discover_req (p_scb, NULL);
+                }
+            }
+            else if (bta_av_is_scb_incoming(p_scb))
+            {
+                /* Stay in incoming state if SNK does not start signalling */
+
+                /* API open was called right after SNK opened L2C connection. */
+                if (p_scb->coll_mask & BTA_AV_COLL_API_CALLED)
+                {
+                    p_scb->coll_mask &= ~BTA_AV_COLL_API_CALLED;
+
+                    /* BTA_AV_API_OPEN_EVT */
+                    tBTA_AV_API_OPEN  *p_buf =
+                        (tBTA_AV_API_OPEN *)osi_malloc(sizeof(tBTA_AV_API_OPEN));
+                    memcpy(p_buf, &(p_scb->open_api), sizeof(tBTA_AV_API_OPEN));
+                    bta_sys_sendmsg(p_buf);
+                }
+            }
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_check_peer_features
+**
+** Description      check supported features on the peer device from the SDP record
+**                  and return the feature mask
+**
+** Returns          tBTA_AV_FEAT peer device feature mask
+**
+*******************************************************************************/
+tBTA_AV_FEAT bta_av_check_peer_features (UINT16 service_uuid)
+{
+    tBTA_AV_FEAT peer_features = 0;
+    tBTA_AV_CB   *p_cb = &bta_av_cb;
+    tSDP_DISC_REC       *p_rec = NULL;
+    tSDP_DISC_ATTR      *p_attr;
+    UINT16              peer_rc_version=0;
+    UINT16              categories = 0;
+
+    APPL_TRACE_DEBUG("bta_av_check_peer_features service_uuid:x%x", service_uuid);
+    /* loop through all records we found */
+    while (TRUE)
+    {
+        /* get next record; if none found, we're done */
+        if ((p_rec = SDP_FindServiceInDb(p_cb->p_disc_db, service_uuid, p_rec)) == NULL)
+        {
+            break;
+        }
+
+        if (( SDP_FindAttributeInRec(p_rec, ATTR_ID_SERVICE_CLASS_ID_LIST)) != NULL)
+        {
+            /* find peer features */
+            if (SDP_FindServiceInDb(p_cb->p_disc_db, UUID_SERVCLASS_AV_REMOTE_CONTROL, NULL))
+            {
+                peer_features |= BTA_AV_FEAT_RCCT;
+            }
+            if (SDP_FindServiceInDb(p_cb->p_disc_db, UUID_SERVCLASS_AV_REM_CTRL_TARGET, NULL))
+            {
+                peer_features |= BTA_AV_FEAT_RCTG;
+            }
+        }
+
+        if (( SDP_FindAttributeInRec(p_rec, ATTR_ID_BT_PROFILE_DESC_LIST)) != NULL)
+        {
+            /* get profile version (if failure, version parameter is not updated) */
+            SDP_FindProfileVersionInRec(p_rec, UUID_SERVCLASS_AV_REMOTE_CONTROL,
+                                                                &peer_rc_version);
+            APPL_TRACE_DEBUG("peer_rc_version 0x%x", peer_rc_version);
+
+            if (peer_rc_version >= AVRC_REV_1_3)
+                peer_features |= (BTA_AV_FEAT_VENDOR | BTA_AV_FEAT_METADATA);
+
+            if (peer_rc_version >= AVRC_REV_1_4)
+            {
+                peer_features |= (BTA_AV_FEAT_ADV_CTRL);
+                /* get supported categories */
+                if ((p_attr = SDP_FindAttributeInRec(p_rec,
+                                ATTR_ID_SUPPORTED_FEATURES)) != NULL)
+                {
+                    categories = p_attr->attr_value.v.u16;
+                    if (categories & AVRC_SUPF_CT_BROWSE)
+                        peer_features |= (BTA_AV_FEAT_BROWSE);
+                }
+            }
+        }
+    }
+    APPL_TRACE_DEBUG("peer_features:x%x", peer_features);
+    return peer_features;
+}
+
+/*******************************************************************************
+**
+** Function         bta_avk_check_peer_features
+**
+** Description      check supported features on the peer device from the SDP record
+**                  and return the feature mask
+**
+** Returns          tBTA_AV_FEAT peer device feature mask
+**
+*******************************************************************************/
+tBTA_AV_FEAT bta_avk_check_peer_features (UINT16 service_uuid)
+{
+    tBTA_AV_FEAT peer_features = 0;
+    tBTA_AV_CB *p_cb = &bta_av_cb;
+
+    APPL_TRACE_DEBUG("%s service_uuid:x%x", __FUNCTION__, service_uuid);
+
+    /* loop through all records we found */
+    tSDP_DISC_REC *p_rec = SDP_FindServiceInDb(p_cb->p_disc_db, service_uuid, NULL);
+    while (p_rec)
+    {
+        APPL_TRACE_DEBUG("%s found Service record for x%x", __FUNCTION__, service_uuid);
+
+        if (( SDP_FindAttributeInRec(p_rec, ATTR_ID_SERVICE_CLASS_ID_LIST)) != NULL)
+        {
+            /* find peer features */
+            if (SDP_FindServiceInDb(p_cb->p_disc_db, UUID_SERVCLASS_AV_REMOTE_CONTROL, NULL))
+            {
+                peer_features |= BTA_AV_FEAT_RCCT;
+            }
+            if (SDP_FindServiceInDb(p_cb->p_disc_db, UUID_SERVCLASS_AV_REM_CTRL_TARGET, NULL))
+            {
+                peer_features |= BTA_AV_FEAT_RCTG;
+            }
+        }
+
+        if (( SDP_FindAttributeInRec(p_rec, ATTR_ID_BT_PROFILE_DESC_LIST)) != NULL)
+        {
+            /* get profile version (if failure, version parameter is not updated) */
+            UINT16 peer_rc_version = 0;
+            BOOLEAN val = SDP_FindProfileVersionInRec(
+                p_rec, UUID_SERVCLASS_AV_REMOTE_CONTROL, &peer_rc_version);
+            APPL_TRACE_DEBUG("%s peer_rc_version for TG 0x%x, profile_found %d",
+                             __FUNCTION__, peer_rc_version, val);
+
+            if (peer_rc_version >= AVRC_REV_1_3)
+                peer_features |= (BTA_AV_FEAT_VENDOR | BTA_AV_FEAT_METADATA);
+
+            /*
+             * Though Absolute Volume came after in 1.4 and above, but there are few devices
+             * in market which supports absolute Volume and they are still 1.3
+             * TO avoid IOT issuses with those devices, we check for 1.3 as minimum version
+             */
+            if (peer_rc_version >= AVRC_REV_1_3)
+            {
+                /* get supported categories */
+                tSDP_DISC_ATTR *p_attr = SDP_FindAttributeInRec(p_rec, ATTR_ID_SUPPORTED_FEATURES);
+                if (p_attr != NULL)
+                {
+                    UINT16 categories = p_attr->attr_value.v.u16;
+                    if (categories & AVRC_SUPF_CT_CAT2)
+                        peer_features |= (BTA_AV_FEAT_ADV_CTRL);
+                    if (categories & AVRC_SUPF_CT_APP_SETTINGS)
+                        peer_features |= (BTA_AV_FEAT_APP_SETTING);
+                }
+            }
+        }
+        /* get next record; if none found, we're done */
+        p_rec = SDP_FindServiceInDb(p_cb->p_disc_db, service_uuid, p_rec);
+    }
+    APPL_TRACE_DEBUG("%s peer_features:x%x", __FUNCTION__, peer_features);
+    return peer_features;
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_rc_disc_done
+**
+** Description      Handle AVRCP service discovery results.  If matching
+**                  service found, open AVRCP connection.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_rc_disc_done(tBTA_AV_DATA *p_data)
+{
+    tBTA_AV_CB   *p_cb = &bta_av_cb;
+    tBTA_AV_SCB  *p_scb = NULL;
+    tBTA_AV_LCB  *p_lcb;
+    tBTA_AV_RC_OPEN rc_open;
+    tBTA_AV_RC_FEAT rc_feat;
+    UINT8               rc_handle;
+    tBTA_AV_FEAT        peer_features = 0;  /* peer features mask */
+    UNUSED(p_data);
+
+    APPL_TRACE_DEBUG("%s bta_av_rc_disc_done disc:x%x", __FUNCTION__, p_cb->disc);
+    if (!p_cb->disc)
+    {
+        return;
+    }
+
+    if ((p_cb->disc & BTA_AV_CHNL_MSK) == BTA_AV_CHNL_MSK)
+    {
+        /* this is the rc handle/index to tBTA_AV_RCB */
+        rc_handle = p_cb->disc & (~BTA_AV_CHNL_MSK);
+    }
+    else
+    {
+        /* Validate array index*/
+        if (((p_cb->disc & BTA_AV_HNDL_MSK) - 1) < BTA_AV_NUM_STRS)
+        {
+            p_scb = p_cb->p_scb[(p_cb->disc & BTA_AV_HNDL_MSK) - 1];
+        }
+        if (p_scb)
+        {
+            rc_handle = p_scb->rc_handle;
+        }
+        else
+        {
+            p_cb->disc = 0;
+            return;
+        }
+    }
+
+    APPL_TRACE_DEBUG("%s rc_handle %d", __FUNCTION__, rc_handle);
+#if (BTA_AV_SINK_INCLUDED == TRUE)
+    if (p_cb->sdp_a2d_snk_handle)
+    {
+        /* This is Sink + CT + TG(Abs Vol) */
+        peer_features = bta_avk_check_peer_features(UUID_SERVCLASS_AV_REM_CTRL_TARGET);
+        if (BTA_AV_FEAT_ADV_CTRL & bta_avk_check_peer_features(UUID_SERVCLASS_AV_REMOTE_CONTROL))
+            peer_features |= (BTA_AV_FEAT_ADV_CTRL|BTA_AV_FEAT_RCCT);
+    }
+    else
+#endif
+    if (p_cb->sdp_a2d_handle)
+    {
+        /* check peer version and whether support CT and TG role */
+        peer_features = bta_av_check_peer_features(UUID_SERVCLASS_AV_REMOTE_CONTROL);
+        if ((p_cb->features & BTA_AV_FEAT_ADV_CTRL) &&
+            ((peer_features & BTA_AV_FEAT_ADV_CTRL) == 0))
+        {
+            /* if we support advance control and peer does not, check their support on TG role
+             * some implementation uses 1.3 on CT ans 1.4 on TG */
+            peer_features |= bta_av_check_peer_features(UUID_SERVCLASS_AV_REM_CTRL_TARGET);
+        }
+    }
+
+    p_cb->disc = 0;
+    osi_free_and_reset((void **)&p_cb->p_disc_db);
+
+    APPL_TRACE_DEBUG("peer_features 0x%x, features 0x%x", peer_features, p_cb->features);
+
+    /* if we have no rc connection */
+    if (rc_handle == BTA_AV_RC_HANDLE_NONE)
+    {
+        if (p_scb)
+        {
+            /* if peer remote control service matches ours and USE_RC is TRUE */
+            if ((((p_cb->features & BTA_AV_FEAT_RCCT) && (peer_features & BTA_AV_FEAT_RCTG)) ||
+                 ((p_cb->features & BTA_AV_FEAT_RCTG) && (peer_features & BTA_AV_FEAT_RCCT))) )
+            {
+                p_lcb = bta_av_find_lcb(p_scb->peer_addr, BTA_AV_LCB_FIND);
+                if (p_lcb)
+                {
+                    rc_handle = bta_av_rc_create(p_cb, AVCT_INT, (UINT8)(p_scb->hdi + 1), p_lcb->lidx);
+                    p_cb->rcb[rc_handle].peer_features = peer_features;
+                }
+#if (BT_USE_TRACES == TRUE || BT_TRACE_APPL == TRUE)
+                else
+                {
+                    APPL_TRACE_ERROR("can not find LCB!!");
+                }
+#endif
+            }
+            else if (p_scb->use_rc)
+            {
+                /* can not find AVRC on peer device. report failure */
+                p_scb->use_rc = FALSE;
+                bdcpy(rc_open.peer_addr, p_scb->peer_addr);
+                rc_open.peer_features = 0;
+                rc_open.status = BTA_AV_FAIL_SDP;
+                (*p_cb->p_cback)(BTA_AV_RC_OPEN_EVT, (tBTA_AV *) &rc_open);
+            }
+        }
+    }
+    else
+    {
+        p_cb->rcb[rc_handle].peer_features = peer_features;
+        rc_feat.rc_handle =  rc_handle;
+        rc_feat.peer_features = peer_features;
+        if (p_scb == NULL)
+        {
+            /*
+             * In case scb is not created by the time we are done with SDP
+             * we still need to send RC feature event. So we need to get BD
+             * from Message
+             */
+            bdcpy(rc_feat.peer_addr, p_cb->lcb[p_cb->rcb[rc_handle].lidx].addr);
+        }
+        else
+            bdcpy(rc_feat.peer_addr, p_scb->peer_addr);
+        (*p_cb->p_cback)(BTA_AV_RC_FEAT_EVT, (tBTA_AV *) &rc_feat);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_rc_closed
+**
+** Description      Set AVRCP state to closed.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_rc_closed(tBTA_AV_DATA *p_data)
+{
+    tBTA_AV_CB   *p_cb = &bta_av_cb;
+    tBTA_AV_RC_CLOSE rc_close;
+    tBTA_AV_RC_CONN_CHG *p_msg = (tBTA_AV_RC_CONN_CHG *)p_data;
+    tBTA_AV_RCB    *p_rcb;
+    tBTA_AV_SCB    *p_scb;
+    int i;
+    BOOLEAN conn = FALSE;
+    tBTA_AV_LCB *p_lcb;
+
+    rc_close.rc_handle = BTA_AV_RC_HANDLE_NONE;
+    p_scb = NULL;
+    APPL_TRACE_DEBUG("bta_av_rc_closed rc_handle:%d", p_msg->handle);
+    for(i=0; i<BTA_AV_NUM_RCB; i++)
+    {
+        p_rcb = &p_cb->rcb[i];
+        APPL_TRACE_DEBUG("bta_av_rc_closed rcb[%d] rc_handle:%d, status=0x%x", i, p_rcb->handle, p_rcb->status);
+        if (p_rcb->handle == p_msg->handle)
+        {
+            rc_close.rc_handle = i;
+            p_rcb->status &= ~BTA_AV_RC_CONN_MASK;
+            p_rcb->peer_features = 0;
+            APPL_TRACE_DEBUG("       shdl:%d, lidx:%d", p_rcb->shdl, p_rcb->lidx);
+            if (p_rcb->shdl)
+            {
+                if ((p_rcb->shdl - 1) < BTA_AV_NUM_STRS)
+                {
+                    p_scb = bta_av_cb.p_scb[p_rcb->shdl - 1];
+                }
+                if (p_scb)
+                {
+                    bdcpy(rc_close.peer_addr, p_scb->peer_addr);
+                    if (p_scb->rc_handle == p_rcb->handle)
+                        p_scb->rc_handle = BTA_AV_RC_HANDLE_NONE;
+                    APPL_TRACE_DEBUG("shdl:%d, srch:%d", p_rcb->shdl, p_scb->rc_handle);
+                }
+                p_rcb->shdl = 0;
+            }
+            else if (p_rcb->lidx == (BTA_AV_NUM_LINKS + 1))
+            {
+                /* if the RCB uses the extra LCB, use the addr for event and clean it */
+                p_lcb = &p_cb->lcb[BTA_AV_NUM_LINKS];
+                bdcpy(rc_close.peer_addr, p_msg->peer_addr);
+                APPL_TRACE_DEBUG("rc_only closed bd_addr:%02x-%02x-%02x-%02x-%02x-%02x",
+                              p_msg->peer_addr[0], p_msg->peer_addr[1],
+                              p_msg->peer_addr[2], p_msg->peer_addr[3],
+                              p_msg->peer_addr[4], p_msg->peer_addr[5]);
+                p_lcb->conn_msk = 0;
+                p_lcb->lidx = 0;
+            }
+            p_rcb->lidx = 0;
+
+            if ((p_rcb->status & BTA_AV_RC_ROLE_MASK) == BTA_AV_RC_ROLE_INT)
+            {
+                /* AVCT CCB is deallocated */
+                p_rcb->handle = BTA_AV_RC_HANDLE_NONE;
+                p_rcb->status = 0;
+            }
+            else
+            {
+                /* AVCT CCB is still there. dealloc */
+                bta_av_del_rc(p_rcb);
+
+                /* if the AVRCP is no longer listening, create the listening channel */
+                if (bta_av_cb.rc_acp_handle == BTA_AV_RC_HANDLE_NONE && bta_av_cb.features & BTA_AV_FEAT_RCTG)
+                    bta_av_rc_create(&bta_av_cb, AVCT_ACP, 0, BTA_AV_NUM_LINKS + 1);
+            }
+        }
+        else if ((p_rcb->handle != BTA_AV_RC_HANDLE_NONE) && (p_rcb->status & BTA_AV_RC_CONN_MASK))
+        {
+            /* at least one channel is still connected */
+            conn = TRUE;
+        }
+    }
+
+    if (!conn)
+    {
+        /* no AVRC channels are connected, go back to INIT state */
+        bta_av_sm_execute(p_cb, BTA_AV_AVRC_NONE_EVT, NULL);
+    }
+
+    if (rc_close.rc_handle == BTA_AV_RC_HANDLE_NONE)
+    {
+        rc_close.rc_handle = p_msg->handle;
+        bdcpy(rc_close.peer_addr, p_msg->peer_addr);
+    }
+    (*p_cb->p_cback)(BTA_AV_RC_CLOSE_EVT, (tBTA_AV *) &rc_close);
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_rc_disc
+**
+** Description      start AVRC SDP discovery.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_rc_disc(UINT8 disc)
+{
+    tBTA_AV_CB   *p_cb = &bta_av_cb;
+    tAVRC_SDP_DB_PARAMS db_params;
+      UINT16              attr_list[] = {ATTR_ID_SERVICE_CLASS_ID_LIST,
+                                       ATTR_ID_BT_PROFILE_DESC_LIST,
+                                       ATTR_ID_SUPPORTED_FEATURES};
+    UINT8       hdi;
+    tBTA_AV_SCB *p_scb;
+    UINT8       *p_addr = NULL;
+    UINT8       rc_handle;
+
+    APPL_TRACE_DEBUG("bta_av_rc_disc 0x%x, %d", disc, bta_av_cb.disc);
+    if ((bta_av_cb.disc != 0) || (disc == 0))
+        return;
+
+    if ((disc & BTA_AV_CHNL_MSK) == BTA_AV_CHNL_MSK)
+    {
+        /* this is the rc handle/index to tBTA_AV_RCB */
+        rc_handle = disc & (~BTA_AV_CHNL_MSK);
+        if (p_cb->rcb[rc_handle].lidx)
+        {
+            p_addr = p_cb->lcb[p_cb->rcb[rc_handle].lidx-1].addr;
+        }
+    }
+    else
+    {
+        hdi = (disc & BTA_AV_HNDL_MSK) - 1;
+        p_scb = p_cb->p_scb[hdi];
+
+        if (p_scb)
+        {
+            APPL_TRACE_DEBUG("rc_handle %d", p_scb->rc_handle);
+            p_addr = p_scb->peer_addr;
+        }
+    }
+
+    if (p_addr)
+    {
+        /* allocate discovery database */
+        if (p_cb->p_disc_db == NULL)
+            p_cb->p_disc_db = (tSDP_DISCOVERY_DB *)osi_malloc(BTA_AV_DISC_BUF_SIZE);
+
+        /* set up parameters */
+        db_params.db_len = BTA_AV_DISC_BUF_SIZE;
+        db_params.num_attr = 3;
+        db_params.p_db = p_cb->p_disc_db;
+        db_params.p_attrs = attr_list;
+
+        /* searching for UUID_SERVCLASS_AV_REMOTE_CONTROL gets both TG and CT */
+        if (AVRC_FindService(UUID_SERVCLASS_AV_REMOTE_CONTROL, p_addr,
+                             &db_params, bta_av_avrc_sdp_cback) == AVRC_SUCCESS) {
+            p_cb->disc = disc;
+            APPL_TRACE_DEBUG("disc %d", p_cb->disc);
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_dereg_comp
+**
+** Description      deregister complete. free the stream control block.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_dereg_comp(tBTA_AV_DATA *p_data)
+{
+    tBTA_AV_CB   *p_cb = &bta_av_cb;
+    tBTA_AV_SCB  *p_scb;
+    tBTA_UTL_COD    cod;
+    UINT8   mask;
+    BT_HDR  *p_buf;
+
+    /* find the stream control block */
+    p_scb = bta_av_hndl_to_scb(p_data->hdr.layer_specific);
+
+    if (p_scb)
+    {
+        APPL_TRACE_DEBUG("deregistered %d(h%d)", p_scb->chnl, p_scb->hndl);
+        mask = BTA_AV_HNDL_TO_MSK(p_scb->hdi);
+        if (p_scb->chnl == BTA_AV_CHNL_AUDIO)
+        {
+            p_cb->reg_audio  &= ~mask;
+            if ((p_cb->conn_audio & mask) && bta_av_cb.audio_open_cnt)
+            {
+                /* this channel is still marked as open. decrease the count */
+                bta_av_cb.audio_open_cnt--;
+            }
+            p_cb->conn_audio &= ~mask;
+
+            if (p_scb->q_tag == BTA_AV_Q_TAG_STREAM && p_scb->a2d_list) {
+                /* make sure no buffers are in a2d_list */
+                while (!list_is_empty(p_scb->a2d_list)) {
+                    p_buf = (BT_HDR*)list_front(p_scb->a2d_list);
+                    list_remove(p_scb->a2d_list, p_buf);
+                    osi_free(p_buf);
+                }
+            }
+
+            /* remove the A2DP SDP record, if no more audio stream is left */
+            if (!p_cb->reg_audio)
+            {
+#if ( defined BTA_AR_INCLUDED ) && (BTA_AR_INCLUDED == TRUE)
+                bta_ar_dereg_avrc (UUID_SERVCLASS_AV_REMOTE_CONTROL, BTA_ID_AV);
+#endif
+                if (p_cb->sdp_a2d_handle)
+                {
+                    bta_av_del_sdp_rec(&p_cb->sdp_a2d_handle);
+                    p_cb->sdp_a2d_handle = 0;
+                    bta_sys_remove_uuid(UUID_SERVCLASS_AUDIO_SOURCE);
+                }
+
+#if (BTA_AV_SINK_INCLUDED == TRUE)
+                if (p_cb->sdp_a2d_snk_handle)
+                {
+                    bta_av_del_sdp_rec(&p_cb->sdp_a2d_snk_handle);
+                    p_cb->sdp_a2d_snk_handle = 0;
+                    bta_sys_remove_uuid(UUID_SERVCLASS_AUDIO_SINK);
+                }
+#endif
+            }
+        }
+        else
+        {
+            p_cb->reg_video  &= ~mask;
+            /* make sure that this channel is not connected */
+            p_cb->conn_video &= ~mask;
+            /* remove the VDP SDP record, (only one video stream at most) */
+            bta_av_del_sdp_rec(&p_cb->sdp_vdp_handle);
+            bta_sys_remove_uuid(UUID_SERVCLASS_VIDEO_SOURCE);
+        }
+
+        /* make sure that the timer is not active */
+        alarm_cancel(p_scb->avrc_ct_timer);
+        osi_free_and_reset((void **)&p_cb->p_scb[p_scb->hdi]);
+    }
+
+    APPL_TRACE_DEBUG("audio 0x%x, video: 0x%x, disable:%d",
+        p_cb->reg_audio, p_cb->reg_video, p_cb->disabling);
+    /* if no stream control block is active */
+    if ((p_cb->reg_audio + p_cb->reg_video) == 0)
+    {
+#if ( defined BTA_AR_INCLUDED ) && (BTA_AR_INCLUDED == TRUE)
+        /* deregister from AVDT */
+        bta_ar_dereg_avdt(BTA_ID_AV);
+
+        /* deregister from AVCT */
+        bta_ar_dereg_avrc (UUID_SERVCLASS_AV_REM_CTRL_TARGET, BTA_ID_AV);
+        bta_ar_dereg_avct(BTA_ID_AV);
+#endif
+
+        if (p_cb->disabling)
+        {
+            p_cb->disabling     = FALSE;
+            bta_av_cb.features  = 0;
+        }
+
+        /* Clear the Capturing service class bit */
+        cod.service = BTM_COD_SERVICE_CAPTURING;
+        utl_set_device_class(&cod, BTA_UTL_CLR_COD_SERVICE_CLASS);
+    }
+}
+#endif /* BTA_AV_INCLUDED */
diff --git a/rtkbt/code/bt/bta/av/bta_av_api.c b/rtkbt/code/bt/bta/av/bta_av_api.c
new file mode 100755
index 0000000..5a033c9
--- /dev/null
+++ b/rtkbt/code/bt/bta/av/bta_av_api.c
@@ -0,0 +1,640 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2011-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the implementation of the API for the advanced audio/video (AV)
+ *  subsystem of BTA, Broadcom's Bluetooth application layer for mobile
+ *  phones.
+ *
+ ******************************************************************************/
+
+#include <assert.h>
+
+#include "bt_target.h"
+#if defined(BTA_AV_INCLUDED) && (BTA_AV_INCLUDED == TRUE)
+
+#include "bta_api.h"
+#include "bta_sys.h"
+#include "bta_av_api.h"
+#include "bta_av_int.h"
+#include "bt_common.h"
+#include <string.h>
+
+#include "osi/include/allocator.h"
+
+/*****************************************************************************
+**  Constants
+*****************************************************************************/
+
+static const tBTA_SYS_REG bta_av_reg =
+{
+    bta_av_hdl_event,
+    BTA_AvDisable
+};
+
+/*******************************************************************************
+**
+** Function         BTA_AvEnable
+**
+** Description      Enable the advanced audio/video service. When the enable
+**                  operation is complete the callback function will be
+**                  called with a BTA_AV_ENABLE_EVT. This function must
+**                  be called before other function in the AV API are
+**                  called.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AvEnable(tBTA_SEC sec_mask, tBTA_AV_FEAT features, tBTA_AV_CBACK *p_cback)
+{
+    tBTA_AV_API_ENABLE *p_buf =
+        (tBTA_AV_API_ENABLE *)osi_malloc(sizeof(tBTA_AV_API_ENABLE));
+
+    /* register with BTA system manager */
+    bta_sys_register(BTA_ID_AV, &bta_av_reg);
+
+    p_buf->hdr.event = BTA_AV_API_ENABLE_EVT;
+    p_buf->p_cback  = p_cback;
+    p_buf->features = features;
+    p_buf->sec_mask = sec_mask;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_AvDisable
+**
+** Description      Disable the advanced audio/video service.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AvDisable(void)
+{
+    BT_HDR *p_buf = (BT_HDR *)osi_malloc(sizeof(BT_HDR));
+
+    bta_sys_deregister(BTA_ID_AV);
+    p_buf->event = BTA_AV_API_DISABLE_EVT;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_AvRegister
+**
+** Description      Register the audio or video service to stack. When the
+**                  operation is complete the callback function will be
+**                  called with a BTA_AV_REGISTER_EVT. This function must
+**                  be called before AVDT stream is open.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AvRegister(tBTA_AV_CHNL chnl, const char *p_service_name, UINT8 app_id,
+                    tBTA_AV_DATA_CBACK  *p_data_cback, UINT16 service_uuid)
+{
+    tBTA_AV_API_REG *p_buf =
+        (tBTA_AV_API_REG *)osi_malloc(sizeof(tBTA_AV_API_REG));
+
+    p_buf->hdr.layer_specific = chnl;
+    p_buf->hdr.event = BTA_AV_API_REGISTER_EVT;
+    if (p_service_name)
+        strlcpy(p_buf->p_service_name, p_service_name, BTA_SERVICE_NAME_LEN);
+    else
+        p_buf->p_service_name[0] = 0;
+    p_buf->app_id = app_id;
+    p_buf->p_app_data_cback = p_data_cback;
+    p_buf->service_uuid = service_uuid;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_AvDeregister
+**
+** Description      Deregister the audio or video service
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AvDeregister(tBTA_AV_HNDL hndl)
+{
+    BT_HDR *p_buf = (BT_HDR *)osi_malloc(sizeof(BT_HDR));
+
+    p_buf->layer_specific = hndl;
+    p_buf->event = BTA_AV_API_DEREGISTER_EVT;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_AvOpen
+**
+** Description      Opens an advanced audio/video connection to a peer device.
+**                  When connection is open callback function is called
+**                  with a BTA_AV_OPEN_EVT.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AvOpen(BD_ADDR bd_addr, tBTA_AV_HNDL handle, BOOLEAN use_rc, tBTA_SEC sec_mask,
+                                                                             UINT16 uuid)
+{
+    tBTA_AV_API_OPEN *p_buf =
+        (tBTA_AV_API_OPEN *)osi_malloc(sizeof(tBTA_AV_API_OPEN));
+
+    p_buf->hdr.event = BTA_AV_API_OPEN_EVT;
+    p_buf->hdr.layer_specific   = handle;
+    bdcpy(p_buf->bd_addr, bd_addr);
+    p_buf->use_rc = use_rc;
+    p_buf->sec_mask = sec_mask;
+    p_buf->switch_res = BTA_AV_RS_NONE;
+    p_buf->uuid = uuid;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_AvClose
+**
+** Description      Close the current streams.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AvClose(tBTA_AV_HNDL handle)
+{
+    BT_HDR *p_buf = (BT_HDR *)osi_malloc(sizeof(BT_HDR));
+
+    p_buf->event = BTA_AV_API_CLOSE_EVT;
+    p_buf->layer_specific = handle;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_AvDisconnect
+**
+** Description      Close the connection to the address.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AvDisconnect(BD_ADDR bd_addr)
+{
+    tBTA_AV_API_DISCNT *p_buf =
+        (tBTA_AV_API_DISCNT *)osi_malloc(sizeof(tBTA_AV_API_DISCNT));
+
+    p_buf->hdr.event = BTA_AV_API_DISCONNECT_EVT;
+    bdcpy(p_buf->bd_addr, bd_addr);
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_AvStart
+**
+** Description      Start audio/video stream data transfer.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AvStart(void)
+{
+    BT_HDR *p_buf = (BT_HDR *) osi_malloc(sizeof(BT_HDR));
+
+    p_buf->event = BTA_AV_API_START_EVT;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_AvOffloadStart
+**
+** Description      Start a2dp audio offloading.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AvOffloadStart(tBTA_AV_HNDL hndl)
+{
+    BT_HDR *p_buf = (BT_HDR *)osi_malloc(sizeof(BT_HDR));
+
+    p_buf->event = BTA_AV_API_OFFLOAD_START_EVT;
+    p_buf->layer_specific = hndl;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_AvOffloadStartRsp
+**
+** Description      Response from vendor lib for A2DP Offload Start request.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AvOffloadStartRsp(tBTA_AV_HNDL hndl, tBTA_AV_STATUS status)
+{
+    tBTA_AV_API_STATUS_RSP *p_buf =
+        (tBTA_AV_API_STATUS_RSP *)osi_malloc(sizeof(tBTA_AV_API_STATUS_RSP));
+
+    p_buf->hdr.event = BTA_AV_API_OFFLOAD_START_RSP_EVT;
+    p_buf->hdr.layer_specific = hndl;
+    p_buf->status = status;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_AvEnable_Sink
+**
+** Description      Enable/Disable A2DP Sink..
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AvEnable_Sink(int enable)
+{
+#if (BTA_AV_SINK_INCLUDED == TRUE)
+    BT_HDR *p_buf =
+        (BT_HDR *)osi_malloc(sizeof(BT_HDR));
+
+    p_buf->event = BTA_AV_API_SINK_ENABLE_EVT;
+    p_buf->layer_specific = enable;
+
+    bta_sys_sendmsg(p_buf);
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         BTA_AvStop
+**
+** Description      Stop audio/video stream data transfer.
+**                  If suspend is TRUE, this function sends AVDT suspend signal
+**                  to the connected peer(s).
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AvStop(BOOLEAN suspend)
+{
+    tBTA_AV_API_STOP *p_buf =
+        (tBTA_AV_API_STOP *)osi_malloc(sizeof(tBTA_AV_API_STOP));
+
+    p_buf->hdr.event = BTA_AV_API_STOP_EVT;
+    p_buf->flush = TRUE;
+    p_buf->suspend = suspend;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_AvReconfig
+**
+** Description      Reconfigure the audio/video stream.
+**                  If suspend is TRUE, this function tries the suspend/reconfigure
+**                  procedure first.
+**                  If suspend is FALSE or when suspend/reconfigure fails,
+**                  this function closes and re-opens the AVDT connection.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AvReconfig(tBTA_AV_HNDL hndl, BOOLEAN suspend, UINT8 sep_info_idx,
+                    UINT8 *p_codec_info, UINT8 num_protect, UINT8 *p_protect_info)
+{
+    tBTA_AV_API_RCFG *p_buf =
+        (tBTA_AV_API_RCFG *)osi_malloc(sizeof(tBTA_AV_API_RCFG) + num_protect);
+
+    p_buf->hdr.layer_specific = hndl;
+    p_buf->hdr.event = BTA_AV_API_RECONFIG_EVT;
+    p_buf->num_protect = num_protect;
+    p_buf->suspend = suspend;
+    p_buf->sep_info_idx = sep_info_idx;
+    p_buf->p_protect_info = (UINT8 *)(p_buf + 1);
+    memcpy(p_buf->codec_info, p_codec_info, AVDT_CODEC_SIZE);
+    memcpy(p_buf->p_protect_info, p_protect_info, num_protect);
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_AvProtectReq
+**
+** Description      Send a content protection request.  This function can only
+**                  be used if AV is enabled with feature BTA_AV_FEAT_PROTECT.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AvProtectReq(tBTA_AV_HNDL hndl, UINT8 *p_data, UINT16 len)
+{
+    tBTA_AV_API_PROTECT_REQ *p_buf =
+        (tBTA_AV_API_PROTECT_REQ *)osi_malloc(sizeof(tBTA_AV_API_PROTECT_REQ) + len);
+
+    p_buf->hdr.layer_specific = hndl;
+    p_buf->hdr.event = BTA_AV_API_PROTECT_REQ_EVT;
+    p_buf->len = len;
+    if (p_data == NULL) {
+        p_buf->p_data = NULL;
+    } else {
+        p_buf->p_data = (UINT8 *) (p_buf + 1);
+        memcpy(p_buf->p_data, p_data, len);
+    }
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_AvProtectRsp
+**
+** Description      Send a content protection response.  This function must
+**                  be called if a BTA_AV_PROTECT_REQ_EVT is received.
+**                  This function can only be used if AV is enabled with
+**                  feature BTA_AV_FEAT_PROTECT.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AvProtectRsp(tBTA_AV_HNDL hndl, UINT8 error_code, UINT8 *p_data, UINT16 len)
+{
+    tBTA_AV_API_PROTECT_RSP *p_buf =
+        (tBTA_AV_API_PROTECT_RSP *)osi_malloc(sizeof(tBTA_AV_API_PROTECT_RSP) + len);
+
+    p_buf->hdr.layer_specific = hndl;
+    p_buf->hdr.event = BTA_AV_API_PROTECT_RSP_EVT;
+    p_buf->len = len;
+    p_buf->error_code= error_code;
+    if (p_data == NULL) {
+        p_buf->p_data = NULL;
+    } else {
+        p_buf->p_data = (UINT8 *) (p_buf + 1);
+        memcpy(p_buf->p_data, p_data, len);
+    }
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_AvRemoteCmd
+**
+** Description      Send a remote control command.  This function can only
+**                  be used if AV is enabled with feature BTA_AV_FEAT_RCCT.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AvRemoteCmd(UINT8 rc_handle, UINT8 label, tBTA_AV_RC rc_id, tBTA_AV_STATE key_state)
+{
+    tBTA_AV_API_REMOTE_CMD *p_buf =
+        (tBTA_AV_API_REMOTE_CMD *)osi_malloc(sizeof(tBTA_AV_API_REMOTE_CMD));
+
+    p_buf->hdr.event = BTA_AV_API_REMOTE_CMD_EVT;
+    p_buf->hdr.layer_specific = rc_handle;
+    p_buf->msg.op_id = rc_id;
+    p_buf->msg.state = key_state;
+    p_buf->msg.p_pass_data = NULL;
+    p_buf->msg.pass_len = 0;
+    p_buf->label = label;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_AvRemoteVendorUniqueCmd
+**
+** Description      Send a remote control command with Vendor Unique rc_id.
+**                  This function can only be used if AV is enabled with
+**                  feature BTA_AV_FEAT_RCCT.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AvRemoteVendorUniqueCmd(UINT8 rc_handle, UINT8 label,
+                                 tBTA_AV_STATE key_state, UINT8* p_msg,
+                                 UINT8 buf_len)
+{
+    tBTA_AV_API_REMOTE_CMD *p_buf =
+      (tBTA_AV_API_REMOTE_CMD *)osi_malloc(sizeof(tBTA_AV_API_REMOTE_CMD) +
+                                           buf_len);
+
+    p_buf->label = label;
+    p_buf->hdr.event = BTA_AV_API_REMOTE_CMD_EVT;
+    p_buf->hdr.layer_specific = rc_handle;
+    p_buf->msg.op_id = AVRC_ID_VENDOR;
+    p_buf->msg.state = key_state;
+    p_buf->msg.pass_len = buf_len;
+    if (p_msg == NULL) {
+        p_buf->msg.p_pass_data = NULL;
+    } else {
+        p_buf->msg.p_pass_data = (UINT8 *)(p_buf + 1);
+        memcpy(p_buf->msg.p_pass_data, p_msg, buf_len);
+    }
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_AvVendorCmd
+**
+** Description      Send a vendor dependent remote control command.  This
+**                  function can only be used if AV is enabled with feature
+**                  BTA_AV_FEAT_VENDOR.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AvVendorCmd(UINT8 rc_handle, UINT8 label, tBTA_AV_CODE cmd_code, UINT8 *p_data, UINT16 len)
+{
+    tBTA_AV_API_VENDOR *p_buf =
+        (tBTA_AV_API_VENDOR *)osi_malloc(sizeof(tBTA_AV_API_VENDOR) + len);
+
+    p_buf->hdr.event = BTA_AV_API_VENDOR_CMD_EVT;
+    p_buf->hdr.layer_specific   = rc_handle;
+    p_buf->msg.hdr.ctype = cmd_code;
+    p_buf->msg.hdr.subunit_type = AVRC_SUB_PANEL;
+    p_buf->msg.hdr.subunit_id = 0;
+    p_buf->msg.company_id = p_bta_av_cfg->company_id;
+    p_buf->label = label;
+    p_buf->msg.vendor_len = len;
+    if (p_data == NULL) {
+        p_buf->msg.p_vendor_data = NULL;
+    } else {
+        p_buf->msg.p_vendor_data = (UINT8 *) (p_buf + 1);
+        memcpy(p_buf->msg.p_vendor_data, p_data, len);
+    }
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_AvVendorRsp
+**
+** Description      Send a vendor dependent remote control response.
+**                  This function must be called if a BTA_AV_VENDOR_CMD_EVT
+**                  is received. This function can only be used if AV is
+**                  enabled with feature BTA_AV_FEAT_VENDOR.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AvVendorRsp(UINT8 rc_handle, UINT8 label, tBTA_AV_CODE rsp_code, UINT8 *p_data, UINT16 len, UINT32 company_id)
+{
+    tBTA_AV_API_VENDOR *p_buf =
+        (tBTA_AV_API_VENDOR *)osi_malloc(sizeof(tBTA_AV_API_VENDOR) + len);
+
+    p_buf->hdr.event = BTA_AV_API_VENDOR_RSP_EVT;
+    p_buf->hdr.layer_specific   = rc_handle;
+    p_buf->msg.hdr.ctype = rsp_code;
+    p_buf->msg.hdr.subunit_type = AVRC_SUB_PANEL;
+    p_buf->msg.hdr.subunit_id = 0;
+    if (company_id)
+        p_buf->msg.company_id = company_id;
+    else
+        p_buf->msg.company_id = p_bta_av_cfg->company_id;
+    p_buf->label = label;
+    p_buf->msg.vendor_len = len;
+    if (p_data == NULL) {
+        p_buf->msg.p_vendor_data = NULL;
+    } else {
+        p_buf->msg.p_vendor_data = (UINT8 *) (p_buf + 1);
+        memcpy(p_buf->msg.p_vendor_data, p_data, len);
+    }
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_AvOpenRc
+**
+** Description      Open an AVRCP connection toward the device with the
+**                  specified handle
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AvOpenRc(tBTA_AV_HNDL handle)
+{
+    tBTA_AV_API_OPEN_RC *p_buf =
+        (tBTA_AV_API_OPEN_RC *)osi_malloc(sizeof(tBTA_AV_API_OPEN_RC));
+
+    p_buf->hdr.event = BTA_AV_API_RC_OPEN_EVT;
+    p_buf->hdr.layer_specific = handle;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_AvCloseRc
+**
+** Description      Close an AVRCP connection
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AvCloseRc(UINT8 rc_handle)
+{
+    tBTA_AV_API_CLOSE_RC *p_buf =
+        (tBTA_AV_API_CLOSE_RC *)osi_malloc(sizeof(tBTA_AV_API_CLOSE_RC));
+
+    p_buf->hdr.event = BTA_AV_API_RC_CLOSE_EVT;
+    p_buf->hdr.layer_specific = rc_handle;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_AvMetaRsp
+**
+** Description      Send a Metadata/Advanced Control response. The message contained
+**                  in p_pkt can be composed with AVRC utility functions.
+**                  This function can only be used if AV is enabled with feature
+**                  BTA_AV_FEAT_METADATA.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AvMetaRsp(UINT8 rc_handle, UINT8 label, tBTA_AV_CODE rsp_code,
+                               BT_HDR *p_pkt)
+{
+    tBTA_AV_API_META_RSP  *p_buf =
+        (tBTA_AV_API_META_RSP *)osi_malloc(sizeof(tBTA_AV_API_META_RSP));
+
+    p_buf->hdr.event = BTA_AV_API_META_RSP_EVT;
+    p_buf->hdr.layer_specific = rc_handle;
+    p_buf->rsp_code = rsp_code;
+    p_buf->p_pkt = p_pkt;
+    p_buf->is_rsp = TRUE;
+    p_buf->label = label;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_AvMetaCmd
+**
+** Description      Send a Metadata/Advanced Control command. The message contained
+**                  in p_pkt can be composed with AVRC utility functions.
+**                  This function can only be used if AV is enabled with feature
+**                  BTA_AV_FEAT_METADATA.
+**                  This message is sent only when the peer supports the TG role.
+*8                  The only command makes sense right now is the absolute volume command.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AvMetaCmd(UINT8 rc_handle, UINT8 label, tBTA_AV_CMD cmd_code, BT_HDR *p_pkt)
+{
+    tBTA_AV_API_META_RSP *p_buf =
+        (tBTA_AV_API_META_RSP *)osi_malloc(sizeof(tBTA_AV_API_META_RSP));
+
+    p_buf->hdr.event = BTA_AV_API_META_RSP_EVT;
+    p_buf->hdr.layer_specific   = rc_handle;
+    p_buf->p_pkt = p_pkt;
+    p_buf->rsp_code = cmd_code;
+    p_buf->is_rsp = FALSE;
+    p_buf->label = label;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+#endif /* BTA_AV_INCLUDED */
diff --git a/rtkbt/code/bt/bta/av/bta_av_cfg.c b/rtkbt/code/bt/bta/av/bta_av_cfg.c
new file mode 100755
index 0000000..e2a8aa8
--- /dev/null
+++ b/rtkbt/code/bt/bta/av/bta_av_cfg.c
@@ -0,0 +1,255 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2005-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains compile-time configurable constants for advanced
+ *  audio/video
+ *
+ ******************************************************************************/
+
+#include <stddef.h>
+
+#include "bt_target.h"
+#include "bt_common.h"
+#include "bta_api.h"
+#include "bta_av_int.h"
+
+#ifndef BTA_AV_RC_PASS_RSP_CODE
+#define BTA_AV_RC_PASS_RSP_CODE     BTA_AV_RSP_NOT_IMPL
+#endif
+
+const UINT32  bta_av_meta_caps_co_ids[] = {
+    AVRC_CO_METADATA,
+    AVRC_CO_BROADCOM
+};
+
+/* AVRCP cupported categories */
+#if (AVRC_CTLR_INCLUDED == TRUE)
+#define BTA_AV_RC_SUPF_CT       (AVRC_SUPF_CT_CAT2)
+#endif
+
+#if (AVRC_CTLR_INCLUDED == TRUE)
+#define BTA_AVK_RC_SUPF_CT       (AVRC_SUPF_CT_CAT1)
+#define BTA_AVK_RC_SUPF_TG       (AVRC_SUPF_TG_CAT2)
+#endif
+
+/* Added to modify
+**	1. flush timeout
+**	2. Remove Group navigation support in SupportedFeatures
+**	3. GetCapabilities supported event_ids list
+**	4. GetCapabilities supported event_ids count
+*/
+/* Flushing partial avdtp packets can cause some headsets to disconnect the link
+   if receiving partial a2dp frames */
+const UINT16  bta_av_audio_flush_to[] = {
+     0, /* 1 stream */
+     0, /* 2 streams */
+     0, /* 3 streams */
+     0, /* 4 streams */
+     0  /* 5 streams */
+};     /* AVDTP audio transport channel flush timeout */
+
+/* Note: Android doesnt support AVRC_SUPF_TG_GROUP_NAVI  */
+/* Note: if AVRC_SUPF_TG_GROUP_NAVI is set, bta_av_cfg.avrc_group should be TRUE */
+#if AVRC_METADATA_INCLUDED == TRUE
+#define BTA_AV_RC_SUPF_TG       (AVRC_SUPF_TG_CAT1) /* TODO: | AVRC_SUPF_TG_APP_SETTINGS) */
+#else
+#define BTA_AV_RC_SUPF_TG       (AVRC_SUPF_TG_CAT1)
+#endif
+
+/*
+ * If the number of event IDs is changed in this array, BTA_AV_ NUM_RC_EVT_IDS   also needs to be changed.
+ */
+const UINT8  bta_av_meta_caps_evt_ids[] = {
+    AVRC_EVT_PLAY_STATUS_CHANGE,
+    AVRC_EVT_TRACK_CHANGE,
+    AVRC_EVT_PLAY_POS_CHANGED,
+    /* TODO: Add support for these events
+    AVRC_EVT_APP_SETTING_CHANGE,
+    */
+};
+#ifndef BTA_AV_NUM_RC_EVT_IDS
+#define BTA_AV_NUM_RC_EVT_IDS   (sizeof(bta_av_meta_caps_evt_ids) / sizeof(bta_av_meta_caps_evt_ids[0]))
+#endif /* BTA_AV_NUM_RC_EVT_IDS */
+
+const UINT8  bta_avk_meta_caps_evt_ids[] = {
+#if AVRC_ADV_CTRL_INCLUDED == TRUE
+    AVRC_EVT_VOLUME_CHANGE,
+#endif
+};
+#ifndef BTA_AVK_NUM_RC_EVT_IDS
+#define BTA_AVK_NUM_RC_EVT_IDS   (sizeof(bta_avk_meta_caps_evt_ids) / sizeof(bta_avk_meta_caps_evt_ids[0]))
+#endif /* BTA_AVK_NUM_RC_EVT_IDS */
+
+
+/* the MTU for the AVRCP browsing channel */
+#ifndef BTA_AV_MAX_RC_BR_MTU
+#define BTA_AV_MAX_RC_BR_MTU      1008
+#endif
+
+/* This configuration to be used when we are Src + TG + CT( only for abs vol) */
+const tBTA_AV_CFG bta_av_cfg =
+{
+    AVRC_CO_BROADCOM,       /* AVRCP Company ID */
+#if AVRC_METADATA_INCLUDED == TRUE
+    512,                    /* AVRCP MTU at L2CAP for control channel */
+#else
+    48,                     /* AVRCP MTU at L2CAP for control channel */
+#endif
+    BTA_AV_MAX_RC_BR_MTU,   /* AVRCP MTU at L2CAP for browsing channel */
+    BTA_AV_RC_SUPF_CT,      /* AVRCP controller categories */
+    BTA_AV_RC_SUPF_TG,      /* AVRCP target categories */
+    672,                    /* AVDTP signaling channel MTU at L2CAP */
+    BTA_AV_MAX_A2DP_MTU,    /* AVDTP audio transport channel MTU at L2CAP */
+    bta_av_audio_flush_to,  /* AVDTP audio transport channel flush timeout */
+    6,                      /* AVDTP audio channel max data queue size */
+    BTA_AV_MAX_VDP_MTU,     /* AVDTP video transport channel MTU at L2CAP */
+    600,                    /* AVDTP video transport channel flush timeout */
+    FALSE,                   /* TRUE, to accept AVRC 1.3 group nevigation command */
+    2,                      /* company id count in p_meta_co_ids */
+    BTA_AV_NUM_RC_EVT_IDS, /* event id count in p_meta_evt_ids */
+    BTA_AV_RC_PASS_RSP_CODE,/* the default response code for pass through commands */
+    bta_av_meta_caps_co_ids,/* the metadata Get Capabilities response for company id */
+    bta_av_meta_caps_evt_ids,/* the the metadata Get Capabilities response for event id */
+    NULL,                   /* the action function table for VDP stream */
+    NULL,                   /* action function to register VDP */
+    {0},                    /* Default AVRCP controller name */
+    {0},                    /* Default AVRCP target name */
+};
+
+/* This configuration to be used when we are Sink + CT + TG( only for abs vol) */
+const tBTA_AV_CFG bta_avk_cfg =
+{
+    AVRC_CO_METADATA,       /* AVRCP Company ID */
+#if AVRC_METADATA_INCLUDED == TRUE
+    512,                    /* AVRCP MTU at L2CAP for control channel */
+#else
+    48,                     /* AVRCP MTU at L2CAP for control channel */
+#endif
+    BTA_AV_MAX_RC_BR_MTU,   /* AVRCP MTU at L2CAP for browsing channel */
+    BTA_AVK_RC_SUPF_CT,      /* AVRCP controller categories */
+    BTA_AVK_RC_SUPF_TG,      /* AVRCP target categories */
+    672,                    /* AVDTP signaling channel MTU at L2CAP */
+    BTA_AV_MAX_A2DP_MTU,    /* AVDTP audio transport channel MTU at L2CAP */
+    bta_av_audio_flush_to,  /* AVDTP audio transport channel flush timeout */
+    6,                      /* AVDTP audio channel max data queue size */
+    BTA_AV_MAX_VDP_MTU,     /* AVDTP video transport channel MTU at L2CAP */
+    600,                    /* AVDTP video transport channel flush timeout */
+    FALSE,                   /* TRUE, to accept AVRC 1.3 group nevigation command */
+    2,                      /* company id count in p_meta_co_ids */
+    BTA_AVK_NUM_RC_EVT_IDS, /* event id count in p_meta_evt_ids */
+    BTA_AV_RC_PASS_RSP_CODE,/* the default response code for pass through commands */
+    bta_av_meta_caps_co_ids,/* the metadata Get Capabilities response for company id */
+    bta_avk_meta_caps_evt_ids,/* the the metadata Get Capabilities response for event id */
+    NULL,                   /* the action function table for VDP stream */
+    NULL,                   /* action function to register VDP */
+    {0},                    /* Default AVRCP controller name */
+    {0},                    /* Default AVRCP target name */
+};
+
+tBTA_AV_CFG *p_bta_av_cfg = NULL;
+
+const UINT16 bta_av_rc_id[] =
+{
+    0x0000, /* bit mask: 0=SELECT, 1=UP, 2=DOWN, 3=LEFT,
+                         4=RIGHT, 5=RIGHT_UP, 6=RIGHT_DOWN, 7=LEFT_UP,
+                         8=LEFT_DOWN, 9=ROOT_MENU, 10=SETUP_MENU, 11=CONT_MENU,
+                         12=FAV_MENU, 13=EXIT */
+
+    0,      /* not used */
+
+    0x0000, /* bit mask: 0=0, 1=1, 2=2, 3=3,
+                         4=4, 5=5, 6=6, 7=7,
+                         8=8, 9=9, 10=DOT, 11=ENTER,
+                         12=CLEAR */
+
+    0x0000, /* bit mask: 0=CHAN_UP, 1=CHAN_DOWN, 2=PREV_CHAN, 3=SOUND_SEL,
+                         4=INPUT_SEL, 5=DISP_INFO, 6=HELP, 7=PAGE_UP,
+                         8=PAGE_DOWN */
+
+#if (BTA_AV_RC_PASS_RSP_CODE == BTA_AV_RSP_INTERIM)
+    /* btui_app provides an example of how to leave the decision of rejecting a command or not
+     * based on which media player is currently addressed (this is only applicable for AVRCP 1.4 or later)
+     * If the decision is per player for a particular rc_id, the related bit is clear (not set) */
+    0x0070, /* bit mask: 0=POWER, 1=VOL_UP, 2=VOL_DOWN, 3=MUTE,
+                         4=PLAY, 5=STOP, 6=PAUSE, 7=RECORD,
+                         8=REWIND, 9=FAST_FOR, 10=EJECT, 11=FORWARD,
+                         12=BACKWARD */
+#else
+#if (defined BTA_AVRCP_FF_RW_SUPPORT) && (BTA_AVRCP_FF_RW_SUPPORT == TRUE)
+    0x1b70, /* bit mask: 0=POWER, 1=VOL_UP, 2=VOL_DOWN, 3=MUTE,
+                         4=PLAY, 5=STOP, 6=PAUSE, 7=RECORD,
+                         8=REWIND, 9=FAST_FOR, 10=EJECT, 11=FORWARD,
+                         12=BACKWARD */
+#else
+    0x1870, /* bit mask: 0=POWER, 1=VOL_UP, 2=VOL_DOWN, 3=MUTE,
+                         4=PLAY, 5=STOP, 6=PAUSE, 7=RECORD,
+                         8=REWIND, 9=FAST_FOR, 10=EJECT, 11=FORWARD,
+                         12=BACKWARD */
+#endif
+#endif
+
+    0x0000, /* bit mask: 0=ANGLE, 1=SUBPICT */
+
+    0,      /* not used */
+
+    0x0000  /* bit mask: 0=not used, 1=F1, 2=F2, 3=F3,
+                         4=F4, 5=F5 */
+};
+
+#if (BTA_AV_RC_PASS_RSP_CODE == BTA_AV_RSP_INTERIM)
+const UINT16 bta_av_rc_id_ac[] =
+{
+    0x0000, /* bit mask: 0=SELECT, 1=UP, 2=DOWN, 3=LEFT,
+                         4=RIGHT, 5=RIGHT_UP, 6=RIGHT_DOWN, 7=LEFT_UP,
+                         8=LEFT_DOWN, 9=ROOT_MENU, 10=SETUP_MENU, 11=CONT_MENU,
+                         12=FAV_MENU, 13=EXIT */
+
+    0,      /* not used */
+
+    0x0000, /* bit mask: 0=0, 1=1, 2=2, 3=3,
+                         4=4, 5=5, 6=6, 7=7,
+                         8=8, 9=9, 10=DOT, 11=ENTER,
+                         12=CLEAR */
+
+    0x0000, /* bit mask: 0=CHAN_UP, 1=CHAN_DOWN, 2=PREV_CHAN, 3=SOUND_SEL,
+                         4=INPUT_SEL, 5=DISP_INFO, 6=HELP, 7=PAGE_UP,
+                         8=PAGE_DOWN */
+
+    /* btui_app provides an example of how to leave the decision of rejecting a command or not
+     * based on which media player is currently addressed (this is only applicable for AVRCP 1.4 or later)
+     * If the decision is per player for a particular rc_id, the related bit is set */
+    0x1800, /* bit mask: 0=POWER, 1=VOL_UP, 2=VOL_DOWN, 3=MUTE,
+                         4=PLAY, 5=STOP, 6=PAUSE, 7=RECORD,
+                         8=REWIND, 9=FAST_FOR, 10=EJECT, 11=FORWARD,
+                         12=BACKWARD */
+
+    0x0000, /* bit mask: 0=ANGLE, 1=SUBPICT */
+
+    0,      /* not used */
+
+    0x0000  /* bit mask: 0=not used, 1=F1, 2=F2, 3=F3,
+                         4=F4, 5=F5 */
+};
+UINT16 *p_bta_av_rc_id_ac = (UINT16 *) bta_av_rc_id_ac;
+#else
+UINT16 *p_bta_av_rc_id_ac = NULL;
+#endif
+
+UINT16 *p_bta_av_rc_id = (UINT16 *) bta_av_rc_id;
diff --git a/rtkbt/code/bt/bta/av/bta_av_ci.c b/rtkbt/code/bt/bta/av/bta_av_ci.c
new file mode 100755
index 0000000..36169c6
--- /dev/null
+++ b/rtkbt/code/bt/bta/av/bta_av_ci.c
@@ -0,0 +1,91 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2005-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the implementation file for advanced audio/video call-in
+ *  functions.
+ *
+ ******************************************************************************/
+
+#include "bta_api.h"
+#include "bta_sys.h"
+#include "bta_av_int.h"
+#include "bta_av_ci.h"
+
+#include <string.h>
+
+/*******************************************************************************
+**
+** Function         bta_av_ci_src_data_ready
+**
+** Description      This function sends an event to the AV indicating that
+**                  the phone has audio stream data ready to send and AV
+**                  should call bta_av_co_audio_src_data_path() or
+**                  bta_av_co_video_src_data_path().
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_ci_src_data_ready(tBTA_AV_CHNL chnl)
+{
+    BT_HDR *p_buf = (BT_HDR *)osi_malloc(sizeof(BT_HDR));
+
+    p_buf->layer_specific   = chnl;
+    p_buf->event = BTA_AV_CI_SRC_DATA_READY_EVT;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_ci_setconfig
+**
+** Description      This function must be called in response to function
+**                  bta_av_co_audio_setconfig() or bta_av_co_video_setconfig.
+**                  Parameter err_code is set to an AVDTP status value;
+**                  AVDT_SUCCESS if the codec configuration is ok,
+**                  otherwise error.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_ci_setconfig(tBTA_AV_HNDL hndl, UINT8 err_code, UINT8 category,
+                         UINT8 num_seid, UINT8 *p_seid, BOOLEAN recfg_needed, UINT8 avdt_handle)
+{
+    tBTA_AV_CI_SETCONFIG *p_buf =
+        (tBTA_AV_CI_SETCONFIG *)osi_malloc(sizeof(tBTA_AV_CI_SETCONFIG));
+
+    p_buf->hdr.layer_specific   = hndl;
+    p_buf->hdr.event = (err_code == AVDT_SUCCESS) ?
+        BTA_AV_CI_SETCONFIG_OK_EVT : BTA_AV_CI_SETCONFIG_FAIL_EVT;
+    p_buf->err_code = err_code;
+    p_buf->category = category;
+    p_buf->recfg_needed = recfg_needed;
+    p_buf->num_seid = num_seid;
+    p_buf->avdt_handle= avdt_handle;
+    if (p_seid && num_seid) {
+        p_buf->p_seid   = (UINT8 *)(p_buf + 1);
+        memcpy(p_buf->p_seid, p_seid, num_seid);
+    } else {
+        p_buf->p_seid   = NULL;
+        p_buf->num_seid = 0;
+    }
+
+    bta_sys_sendmsg(p_buf);
+}
diff --git a/rtkbt/code/bt/bta/av/bta_av_int.h b/rtkbt/code/bt/bta/av/bta_av_int.h
new file mode 100755
index 0000000..dbe4c77
--- /dev/null
+++ b/rtkbt/code/bt/bta/av/bta_av_int.h
@@ -0,0 +1,751 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2004-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the private interface file for the BTA advanced audio/video.
+ *
+ ******************************************************************************/
+#ifndef BTA_AV_INT_H
+#define BTA_AV_INT_H
+
+#include "osi/include/list.h"
+#include "bta_sys.h"
+#include "bta_api.h"
+#include "bta_av_api.h"
+#include "avdt_api.h"
+#include "bta_av_co.h"
+
+#define BTA_AV_DEBUG TRUE
+/*****************************************************************************
+**  Constants
+*****************************************************************************/
+
+enum
+{
+    /* these events are handled by the AV main state machine */
+    BTA_AV_API_DISABLE_EVT = BTA_SYS_EVT_START(BTA_ID_AV),
+    BTA_AV_API_REMOTE_CMD_EVT,
+    BTA_AV_API_VENDOR_CMD_EVT,
+    BTA_AV_API_VENDOR_RSP_EVT,
+    BTA_AV_API_META_RSP_EVT,
+    BTA_AV_API_RC_CLOSE_EVT,
+    BTA_AV_AVRC_OPEN_EVT,
+    BTA_AV_AVRC_MSG_EVT,
+    BTA_AV_AVRC_NONE_EVT,
+
+    /* these events are handled by the AV stream state machine */
+    BTA_AV_API_OPEN_EVT,
+    BTA_AV_API_CLOSE_EVT,
+    BTA_AV_AP_START_EVT,        /* the following 2 events must be in the same order as the *API_*EVT */
+    BTA_AV_AP_STOP_EVT,
+    BTA_AV_API_RECONFIG_EVT,
+    BTA_AV_API_PROTECT_REQ_EVT,
+    BTA_AV_API_PROTECT_RSP_EVT,
+    BTA_AV_API_RC_OPEN_EVT,
+    BTA_AV_SRC_DATA_READY_EVT,
+    BTA_AV_CI_SETCONFIG_OK_EVT,
+    BTA_AV_CI_SETCONFIG_FAIL_EVT,
+    BTA_AV_SDP_DISC_OK_EVT,
+    BTA_AV_SDP_DISC_FAIL_EVT,
+    BTA_AV_STR_DISC_OK_EVT,
+    BTA_AV_STR_DISC_FAIL_EVT,
+    BTA_AV_STR_GETCAP_OK_EVT,
+    BTA_AV_STR_GETCAP_FAIL_EVT,
+    BTA_AV_STR_OPEN_OK_EVT,
+    BTA_AV_STR_OPEN_FAIL_EVT,
+    BTA_AV_STR_START_OK_EVT,
+    BTA_AV_STR_START_FAIL_EVT,
+    BTA_AV_STR_CLOSE_EVT,
+    BTA_AV_STR_CONFIG_IND_EVT,
+    BTA_AV_STR_SECURITY_IND_EVT,
+    BTA_AV_STR_SECURITY_CFM_EVT,
+    BTA_AV_STR_WRITE_CFM_EVT,
+    BTA_AV_STR_SUSPEND_CFM_EVT,
+    BTA_AV_STR_RECONFIG_CFM_EVT,
+    BTA_AV_AVRC_TIMER_EVT,
+    BTA_AV_AVDT_CONNECT_EVT,
+    BTA_AV_AVDT_DISCONNECT_EVT,
+    BTA_AV_ROLE_CHANGE_EVT,
+    BTA_AV_AVDT_DELAY_RPT_EVT,
+    BTA_AV_ACP_CONNECT_EVT,
+    BTA_AV_API_OFFLOAD_START_EVT,
+    BTA_AV_API_OFFLOAD_START_RSP_EVT,
+
+    /* these events are handled outside of the state machine */
+    BTA_AV_API_ENABLE_EVT,
+    BTA_AV_API_REGISTER_EVT,
+    BTA_AV_API_DEREGISTER_EVT,
+    BTA_AV_API_DISCONNECT_EVT,
+    BTA_AV_CI_SRC_DATA_READY_EVT,
+    BTA_AV_SIG_CHG_EVT,
+    BTA_AV_SIGNALLING_TIMER_EVT,
+    BTA_AV_SDP_AVRC_DISC_EVT,
+    BTA_AV_AVRC_CLOSE_EVT,
+    BTA_AV_CONN_CHG_EVT,
+    BTA_AV_DEREG_COMP_EVT,
+#if (BTA_AV_SINK_INCLUDED == TRUE)
+    BTA_AV_API_SINK_ENABLE_EVT,
+#endif
+#if (AVDT_REPORTING == TRUE)
+    BTA_AV_AVDT_RPT_CONN_EVT,
+#endif
+    BTA_AV_API_START_EVT,       /* the following 2 events must be in the same order as the *AP_*EVT */
+    BTA_AV_API_STOP_EVT
+};
+
+/* events for AV control block state machine */
+#define BTA_AV_FIRST_SM_EVT     BTA_AV_API_DISABLE_EVT
+#define BTA_AV_LAST_SM_EVT      BTA_AV_AVRC_NONE_EVT
+
+/* events for AV stream control block state machine */
+#define BTA_AV_FIRST_SSM_EVT    BTA_AV_API_OPEN_EVT
+
+/* events that do not go through state machine */
+#define BTA_AV_FIRST_NSM_EVT    BTA_AV_API_ENABLE_EVT
+#define BTA_AV_LAST_NSM_EVT     BTA_AV_API_STOP_EVT
+
+/* API events passed to both SSMs (by bta_av_api_to_ssm) */
+#define BTA_AV_FIRST_A2S_API_EVT    BTA_AV_API_START_EVT
+#define BTA_AV_FIRST_A2S_SSM_EVT    BTA_AV_AP_START_EVT
+
+#define BTA_AV_LAST_EVT             BTA_AV_API_STOP_EVT
+
+/* maximum number of SEPS in stream discovery results */
+#define BTA_AV_NUM_SEPS         32
+
+/* initialization value for AVRC handle */
+#define BTA_AV_RC_HANDLE_NONE   0xFF
+
+/* size of database for service discovery */
+#define BTA_AV_DISC_BUF_SIZE        1000
+
+/* offset of media type in codec info byte array */
+#define BTA_AV_MEDIA_TYPE_IDX       1
+
+/* maximum length of AVDTP security data */
+#define BTA_AV_SECURITY_MAX_LEN     400
+
+/* check number of buffers queued at L2CAP when this amount of buffers are queued to L2CAP */
+#define BTA_AV_QUEUE_DATA_CHK_NUM   L2CAP_HIGH_PRI_MIN_XMIT_QUOTA
+
+/* the number of ACL links with AVDT */
+#define BTA_AV_NUM_LINKS            AVDT_NUM_LINKS
+
+#define BTA_AV_CO_ID_TO_BE_STREAM(p, u32) {*(p)++ = (UINT8)((u32) >> 16); *(p)++ = (UINT8)((u32) >> 8); *(p)++ = (UINT8)(u32); }
+#define BTA_AV_BE_STREAM_TO_CO_ID(u32, p) {u32 = (((UINT32)(*((p) + 2))) + (((UINT32)(*((p) + 1))) << 8) + (((UINT32)(*(p))) << 16)); (p) += 3;}
+
+/* these bits are defined for bta_av_cb.multi_av */
+#define BTA_AV_MULTI_AV_SUPPORTED   0x01
+#define BTA_AV_MULTI_AV_IN_USE      0x02
+
+
+/*****************************************************************************
+**  Data types
+*****************************************************************************/
+
+/* function types for call-out functions */
+typedef BOOLEAN (*tBTA_AV_CO_INIT) (UINT8 *p_codec_type, UINT8 *p_codec_info,
+                                   UINT8 *p_num_protect, UINT8 *p_protect_info, UINT8 index);
+typedef void (*tBTA_AV_CO_DISC_RES) (tBTA_AV_HNDL hndl, UINT8 num_seps,
+                                     UINT8 num_snk, UINT8 num_src, BD_ADDR addr, UINT16 uuid_local);
+typedef UINT8 (*tBTA_AV_CO_GETCFG) (tBTA_AV_HNDL hndl, tBTA_AV_CODEC codec_type,
+                                     UINT8 *p_codec_info, UINT8 *p_sep_info_idx, UINT8 seid,
+                                     UINT8 *p_num_protect, UINT8 *p_protect_info);
+typedef void (*tBTA_AV_CO_SETCFG) (tBTA_AV_HNDL hndl, tBTA_AV_CODEC codec_type,
+                                     UINT8 *p_codec_info, UINT8 seid, BD_ADDR addr,
+                                     UINT8 num_protect, UINT8 *p_protect_info,
+                                     UINT8 t_local_sep, UINT8 avdt_handle);
+typedef void (*tBTA_AV_CO_OPEN) (tBTA_AV_HNDL hndl,
+                                 tBTA_AV_CODEC codec_type, UINT8 *p_codec_info,
+                                   UINT16 mtu);
+typedef void (*tBTA_AV_CO_CLOSE) (tBTA_AV_HNDL hndl, tBTA_AV_CODEC codec_type, UINT16 mtu);
+typedef void (*tBTA_AV_CO_START) (tBTA_AV_HNDL hndl, tBTA_AV_CODEC codec_type,UINT8 *p_codec_info, BOOLEAN *p_no_rtp_hdr);
+typedef void (*tBTA_AV_CO_STOP) (tBTA_AV_HNDL hndl, tBTA_AV_CODEC codec_type);
+typedef void * (*tBTA_AV_CO_DATAPATH) (tBTA_AV_CODEC codec_type,
+                                       UINT32 *p_len, UINT32 *p_timestamp);
+typedef void (*tBTA_AV_CO_DELAY) (tBTA_AV_HNDL hndl, UINT16 delay);
+
+/* the call-out functions for one stream */
+typedef struct
+{
+    tBTA_AV_CO_INIT     init;
+    tBTA_AV_CO_DISC_RES disc_res;
+    tBTA_AV_CO_GETCFG   getcfg;
+    tBTA_AV_CO_SETCFG   setcfg;
+    tBTA_AV_CO_OPEN     open;
+    tBTA_AV_CO_CLOSE    close;
+    tBTA_AV_CO_START    start;
+    tBTA_AV_CO_STOP     stop;
+    tBTA_AV_CO_DATAPATH data;
+    tBTA_AV_CO_DELAY    delay;
+} tBTA_AV_CO_FUNCTS;
+
+/* data type for BTA_AV_API_ENABLE_EVT */
+typedef struct
+{
+    BT_HDR              hdr;
+    tBTA_AV_CBACK       *p_cback;
+    tBTA_AV_FEAT        features;
+    tBTA_SEC            sec_mask;
+} tBTA_AV_API_ENABLE;
+
+/* data type for BTA_AV_API_REG_EVT */
+typedef struct
+{
+    BT_HDR              hdr;
+    char                p_service_name[BTA_SERVICE_NAME_LEN+1];
+    UINT8               app_id;
+    tBTA_AV_DATA_CBACK       *p_app_data_cback;
+    UINT16              service_uuid;
+} tBTA_AV_API_REG;
+
+
+enum
+{
+    BTA_AV_RS_NONE,     /* straight API call */
+    BTA_AV_RS_OK,       /* the role switch result - successful */
+    BTA_AV_RS_FAIL,     /* the role switch result - failed */
+    BTA_AV_RS_DONE      /* the role switch is done - continue */
+};
+typedef UINT8 tBTA_AV_RS_RES;
+/* data type for BTA_AV_API_OPEN_EVT */
+typedef struct
+{
+    BT_HDR              hdr;
+    BD_ADDR             bd_addr;
+    BOOLEAN             use_rc;
+    tBTA_SEC            sec_mask;
+    tBTA_AV_RS_RES      switch_res;
+    UINT16              uuid;  /* uuid of initiator */
+} tBTA_AV_API_OPEN;
+
+/* data type for BTA_AV_API_STOP_EVT */
+typedef struct
+{
+    BT_HDR              hdr;
+    BOOLEAN             suspend;
+    BOOLEAN             flush;
+} tBTA_AV_API_STOP;
+
+/* data type for BTA_AV_API_DISCONNECT_EVT */
+typedef struct
+{
+    BT_HDR              hdr;
+    BD_ADDR             bd_addr;
+} tBTA_AV_API_DISCNT;
+
+/* data type for BTA_AV_API_PROTECT_REQ_EVT */
+typedef struct
+{
+    BT_HDR              hdr;
+    UINT8               *p_data;
+    UINT16              len;
+} tBTA_AV_API_PROTECT_REQ;
+
+/* data type for BTA_AV_API_PROTECT_RSP_EVT */
+typedef struct
+{
+    BT_HDR              hdr;
+    UINT8               *p_data;
+    UINT16              len;
+    UINT8               error_code;
+} tBTA_AV_API_PROTECT_RSP;
+
+/* data type for BTA_AV_API_REMOTE_CMD_EVT */
+typedef struct
+{
+    BT_HDR              hdr;
+    tAVRC_MSG_PASS      msg;
+    UINT8               label;
+} tBTA_AV_API_REMOTE_CMD;
+
+/* data type for BTA_AV_API_VENDOR_CMD_EVT and RSP */
+typedef struct
+{
+    BT_HDR              hdr;
+    tAVRC_MSG_VENDOR    msg;
+    UINT8               label;
+} tBTA_AV_API_VENDOR;
+
+/* data type for BTA_AV_API_RC_OPEN_EVT */
+typedef struct
+{
+    BT_HDR              hdr;
+} tBTA_AV_API_OPEN_RC;
+
+/* data type for BTA_AV_API_RC_CLOSE_EVT */
+typedef struct
+{
+    BT_HDR              hdr;
+} tBTA_AV_API_CLOSE_RC;
+
+/* data type for BTA_AV_API_META_RSP_EVT */
+typedef struct
+{
+    BT_HDR              hdr;
+    BOOLEAN             is_rsp;
+    UINT8               label;
+    tBTA_AV_CODE        rsp_code;
+    BT_HDR              *p_pkt;
+} tBTA_AV_API_META_RSP;
+
+
+/* data type for BTA_AV_API_RECONFIG_EVT */
+typedef struct
+{
+    BT_HDR              hdr;
+    UINT8               codec_info[AVDT_CODEC_SIZE];    /* codec configuration */
+    UINT8               *p_protect_info;
+    UINT8               num_protect;
+    BOOLEAN             suspend;
+    UINT8               sep_info_idx;
+} tBTA_AV_API_RCFG;
+
+/* data type for BTA_AV_CI_SETCONFIG_OK_EVT and BTA_AV_CI_SETCONFIG_FAIL_EVT */
+typedef struct
+{
+    BT_HDR              hdr;
+    tBTA_AV_HNDL        hndl;
+    UINT8               err_code;
+    UINT8               category;
+    UINT8               num_seid;
+    UINT8               *p_seid;
+    BOOLEAN             recfg_needed;
+    UINT8               avdt_handle;  /* local sep type for which this stream will be set up */
+} tBTA_AV_CI_SETCONFIG;
+
+/* data type for all stream events from AVDTP */
+typedef struct {
+    BT_HDR              hdr;
+    tAVDT_CFG           cfg;        /* configuration/capabilities parameters */
+    tAVDT_CTRL          msg;        /* AVDTP callback message parameters */
+    BD_ADDR             bd_addr;    /* bd address */
+    UINT8               handle;
+    UINT8               avdt_event;
+    BOOLEAN             initiator; /* TRUE, if local device initiates the SUSPEND */
+} tBTA_AV_STR_MSG;
+
+/* data type for BTA_AV_AVRC_MSG_EVT */
+typedef struct
+{
+    BT_HDR              hdr;
+    tAVRC_MSG           msg;
+    UINT8               handle;
+    UINT8               label;
+    UINT8               opcode;
+} tBTA_AV_RC_MSG;
+
+/* data type for BTA_AV_AVRC_OPEN_EVT, BTA_AV_AVRC_CLOSE_EVT */
+typedef struct
+{
+    BT_HDR              hdr;
+    BD_ADDR             peer_addr;
+    UINT8               handle;
+} tBTA_AV_RC_CONN_CHG;
+
+/* data type for BTA_AV_CONN_CHG_EVT */
+typedef struct
+{
+    BT_HDR              hdr;
+    BD_ADDR             peer_addr;
+    BOOLEAN             is_up;
+} tBTA_AV_CONN_CHG;
+
+/* data type for BTA_AV_ROLE_CHANGE_EVT */
+typedef struct
+{
+    BT_HDR              hdr;
+    UINT8               new_role;
+    UINT8               hci_status;
+} tBTA_AV_ROLE_RES;
+
+/* data type for BTA_AV_SDP_DISC_OK_EVT */
+typedef struct
+{
+    BT_HDR              hdr;
+    UINT16              avdt_version;   /* AVDTP protocol version */
+} tBTA_AV_SDP_RES;
+
+/* data type for BTA_AV_API_OFFLOAD_RSP_EVT */
+typedef struct
+{
+    BT_HDR              hdr;
+    tBTA_AV_STATUS      status;
+} tBTA_AV_API_STATUS_RSP;
+
+
+/* type for SEP control block */
+typedef struct
+{
+    UINT8               av_handle;         /* AVDTP handle */
+    tBTA_AV_CODEC       codec_type;        /* codec type */
+    UINT8               tsep;              /* SEP type of local SEP */
+    tBTA_AV_DATA_CBACK  *p_app_data_cback; /* Application callback for media packets */
+} tBTA_AV_SEP;
+
+
+/* initiator/acceptor role for adaption */
+#define BTA_AV_ROLE_AD_INT          0x00       /* initiator */
+#define BTA_AV_ROLE_AD_ACP          0x01       /* acceptor */
+
+/* initiator/acceptor signaling roles */
+#define BTA_AV_ROLE_START_ACP       0x00
+#define BTA_AV_ROLE_START_INT       0x10    /* do not change this value */
+
+#define BTA_AV_ROLE_SUSPEND         0x20    /* suspending on start */
+#define BTA_AV_ROLE_SUSPEND_OPT     0x40    /* Suspend on Start option is set */
+
+/* union of all event datatypes */
+typedef union
+{
+    BT_HDR                  hdr;
+    tBTA_AV_API_ENABLE      api_enable;
+    tBTA_AV_API_REG         api_reg;
+    tBTA_AV_API_OPEN        api_open;
+    tBTA_AV_API_STOP        api_stop;
+    tBTA_AV_API_DISCNT      api_discnt;
+    tBTA_AV_API_PROTECT_REQ api_protect_req;
+    tBTA_AV_API_PROTECT_RSP api_protect_rsp;
+    tBTA_AV_API_REMOTE_CMD  api_remote_cmd;
+    tBTA_AV_API_VENDOR      api_vendor;
+    tBTA_AV_API_RCFG        api_reconfig;
+    tBTA_AV_CI_SETCONFIG    ci_setconfig;
+    tBTA_AV_STR_MSG         str_msg;
+    tBTA_AV_RC_MSG          rc_msg;
+    tBTA_AV_RC_CONN_CHG     rc_conn_chg;
+    tBTA_AV_CONN_CHG        conn_chg;
+    tBTA_AV_ROLE_RES        role_res;
+    tBTA_AV_SDP_RES         sdp_res;
+    tBTA_AV_API_META_RSP    api_meta_rsp;
+    tBTA_AV_API_STATUS_RSP  api_status_rsp;
+} tBTA_AV_DATA;
+
+typedef void (tBTA_AV_VDP_DATA_ACT)(void *p_scb);
+
+typedef struct
+{
+    tBTA_AV_VDP_DATA_ACT    *p_act;
+    UINT8                   *p_frame;
+    UINT16                  buf_size;
+    UINT32                  len;
+    UINT32                  offset;
+    UINT32                  timestamp;
+} tBTA_AV_VF_INFO;
+
+typedef union
+{
+    tBTA_AV_VF_INFO     vdp;            /* used for video channels only */
+    tBTA_AV_API_OPEN    open;           /* used only before open and role switch
+                                           is needed on another AV channel */
+} tBTA_AV_Q_INFO;
+
+#define BTA_AV_Q_TAG_OPEN               0x01 /* after API_OPEN, before STR_OPENED */
+#define BTA_AV_Q_TAG_START              0x02 /* before start sending media packets */
+#define BTA_AV_Q_TAG_STREAM             0x03 /* during streaming */
+
+#define BTA_AV_WAIT_ACP_CAPS_ON         0x01 /* retriving the peer capabilities */
+#define BTA_AV_WAIT_ACP_CAPS_STARTED    0x02 /* started while retriving peer capabilities */
+#define BTA_AV_WAIT_ROLE_SW_RES_OPEN    0x04 /* waiting for role switch result after API_OPEN, before STR_OPENED */
+#define BTA_AV_WAIT_ROLE_SW_RES_START   0x08 /* waiting for role switch result before streaming */
+#define BTA_AV_WAIT_ROLE_SW_STARTED     0x10 /* started while waiting for role switch result */
+#define BTA_AV_WAIT_ROLE_SW_RETRY       0x20 /* set when retry on timeout */
+#define BTA_AV_WAIT_CHECK_RC            0x40 /* set when the timer is used by role switch */
+#define BTA_AV_WAIT_ROLE_SW_FAILED      0x80 /* role switch failed */
+
+#define BTA_AV_WAIT_ROLE_SW_BITS        (BTA_AV_WAIT_ROLE_SW_RES_OPEN|BTA_AV_WAIT_ROLE_SW_RES_START|BTA_AV_WAIT_ROLE_SW_STARTED|BTA_AV_WAIT_ROLE_SW_RETRY)
+
+/* Bitmap for collision, coll_mask */
+#define BTA_AV_COLL_INC_TMR             0x01 /* Timer is running for incoming L2C connection */
+#define BTA_AV_COLL_API_CALLED          0x02 /* API open was called while incoming timer is running */
+
+/* type for AV stream control block */
+typedef struct
+{
+    const tBTA_AV_ACT   *p_act_tbl;     /* the action table for stream state machine */
+    const tBTA_AV_CO_FUNCTS *p_cos;     /* the associated callout functions */
+    BOOLEAN             sdp_discovery_started; /* variable to determine whether SDP is started */
+    tBTA_AV_SEP         seps[BTA_AV_MAX_SEPS];
+    tAVDT_CFG           *p_cap;         /* buffer used for get capabilities */
+    list_t              *a2d_list;      /* used for audio channels only */
+    tBTA_AV_Q_INFO      q_info;
+    tAVDT_SEP_INFO      sep_info[BTA_AV_NUM_SEPS];      /* stream discovery results */
+    tAVDT_CFG           cfg;            /* local SEP configuration */
+    alarm_t             *avrc_ct_timer; /* delay timer for AVRC CT */
+    BD_ADDR             peer_addr;      /* peer BD address */
+    UINT16              l2c_cid;        /* L2CAP channel ID */
+    UINT16              stream_mtu;     /* MTU of stream */
+    UINT16              avdt_version;   /* the avdt version of peer device */
+    tBTA_SEC            sec_mask;       /* security mask */
+    tBTA_AV_CODEC       codec_type;     /* codec type */
+    UINT8               media_type;     /* Media type */
+    BOOLEAN             cong;           /* TRUE if AVDTP congested */
+    tBTA_AV_STATUS      open_status;    /* open failure status */
+    tBTA_AV_CHNL        chnl;           /* the channel: audio/video */
+    tBTA_AV_HNDL        hndl;           /* the handle: ((hdi + 1)|chnl) */
+    UINT16              cur_psc_mask;   /* Protocol service capabilities mask for current connection */
+    UINT8               avdt_handle;    /* AVDTP handle */
+    UINT8               hdi;            /* the index to SCB[] */
+    UINT8               num_seps;       /* number of seps returned by stream discovery */
+    UINT8               num_disc_snks;  /* number of discovered snks */
+    UINT8               num_disc_srcs;  /* number of discovered srcs */
+    UINT8               sep_info_idx;   /* current index into sep_info */
+    UINT8               sep_idx;        /* current index into local seps[] */
+    UINT8               rcfg_idx;       /* reconfig requested index into sep_info */
+    UINT8               state;          /* state machine state */
+    UINT8               avdt_label;     /* AVDTP label */
+    UINT8               app_id;         /* application id */
+    UINT8               num_recfg;      /* number of reconfigure sent */
+    UINT8               role;
+    UINT8               l2c_bufs;       /* the number of buffers queued to L2CAP */
+    UINT8               rc_handle;      /* connected AVRCP handle */
+    BOOLEAN             use_rc;         /* TRUE if AVRCP is allowed */
+    BOOLEAN             started;        /* TRUE if stream started */
+    UINT8               co_started;     /* non-zero, if stream started from call-out perspective */
+    BOOLEAN             recfg_sup;      /* TRUE if the first attempt to reconfigure the stream was successfull, else False if command fails */
+    BOOLEAN             suspend_sup;    /* TRUE if Suspend stream is supported, else FALSE if suspend command fails */
+    BOOLEAN             deregistring;   /* TRUE if deregistering */
+    BOOLEAN             sco_suspend;    /* TRUE if SUSPEND is issued automatically for SCO */
+    UINT8               coll_mask;      /* Mask to check incoming and outgoing collision */
+    tBTA_AV_API_OPEN    open_api;       /* Saved OPEN api message */
+    UINT8               wait;           /* set 0x1, when getting Caps as ACP, set 0x2, when started */
+    UINT8               q_tag;          /* identify the associated q_info union member */
+    BOOLEAN             no_rtp_hdr;     /* TRUE if add no RTP header*/
+    UINT16              uuid_int;       /*intended UUID of Initiator to connect to */
+    BOOLEAN             offload_start_pending;
+    BOOLEAN             skip_sdp;       /* Decides if sdp to be done prior to profile connection */
+} tBTA_AV_SCB;
+
+#define BTA_AV_RC_ROLE_MASK     0x10
+#define BTA_AV_RC_ROLE_INT      0x00
+#define BTA_AV_RC_ROLE_ACP      0x10
+
+#define BTA_AV_RC_CONN_MASK     0x20
+
+/* type for AV RCP control block */
+/* index to this control block is the rc handle */
+typedef struct
+{
+    UINT8   status;
+    UINT8   handle;
+    UINT8   shdl;   /* stream handle (hdi + 1) */
+    UINT8   lidx;   /* (index+1) to LCB */
+    tBTA_AV_FEAT        peer_features;  /* peer features mask */
+} tBTA_AV_RCB;
+#define BTA_AV_NUM_RCB      (BTA_AV_NUM_STRS  + 2)
+
+enum
+{
+    BTA_AV_LCB_FREE,
+    BTA_AV_LCB_FIND
+};
+
+/* type for AV ACL Link control block */
+typedef struct
+{
+    BD_ADDR             addr;           /* peer BD address */
+    UINT8               conn_msk;       /* handle mask of connected stream handle */
+    UINT8               lidx;           /* index + 1 */
+} tBTA_AV_LCB;
+
+/* type for stream state machine action functions */
+typedef void (*tBTA_AV_SACT)(tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data);
+
+
+/* type for AV control block */
+typedef struct
+{
+    tBTA_AV_SCB         *p_scb[BTA_AV_NUM_STRS];    /* stream control block */
+    tSDP_DISCOVERY_DB   *p_disc_db;     /* pointer to discovery database */
+    tBTA_AV_CBACK       *p_cback;       /* application callback function */
+    tBTA_AV_RCB         rcb[BTA_AV_NUM_RCB];  /* RCB control block */
+    tBTA_AV_LCB         lcb[BTA_AV_NUM_LINKS+1];  /* link control block */
+    alarm_t             *link_signalling_timer;
+    alarm_t             *accept_signalling_timer; /* timer to monitor signalling when accepting */
+    UINT32              sdp_a2d_handle; /* SDP record handle for audio src */
+#if (BTA_AV_SINK_INCLUDED == TRUE)
+    UINT32              sdp_a2d_snk_handle; /* SDP record handle for audio snk */
+#endif
+    UINT32              sdp_vdp_handle; /* SDP record handle for video src */
+    tBTA_AV_FEAT        features;       /* features mask */
+    tBTA_SEC            sec_mask;       /* security mask */
+    tBTA_AV_HNDL        handle;         /* the handle for SDP activity */
+    BOOLEAN             disabling;      /* TRUE if api disabled called */
+    UINT8               disc;           /* (hdi+1) or (rc_handle|BTA_AV_CHNL_MSK) if p_disc_db is in use */
+    UINT8               state;          /* state machine state */
+    UINT8               conn_rc;        /* handle mask of connected RCP channels */
+    UINT8               conn_audio;     /* handle mask of connected audio channels */
+    UINT8               conn_video;     /* handle mask of connected video channels */
+    UINT8               conn_lcb;       /* index mask of used LCBs */
+    UINT8               audio_open_cnt; /* number of connected audio channels */
+    UINT8               reg_audio;      /* handle mask of registered audio channels */
+    UINT8               reg_video;      /* handle mask of registered video channels */
+    UINT8               rc_acp_handle;
+    UINT8               rc_acp_idx;     /* (index + 1) to RCB */
+    UINT8               rs_idx;         /* (index + 1) to SCB for the one waiting for RS on open */
+    BOOLEAN             sco_occupied;   /* TRUE if SCO is being used or call is in progress */
+    UINT8               audio_streams;  /* handle mask of streaming audio channels */
+    UINT8               video_streams;  /* handle mask of streaming video channels */
+} tBTA_AV_CB;
+
+
+
+/*****************************************************************************
+**  Global data
+*****************************************************************************/
+
+/* control block declaration */
+#if BTA_DYNAMIC_MEMORY == FALSE
+extern tBTA_AV_CB bta_av_cb;
+#else
+extern tBTA_AV_CB *bta_av_cb_ptr;
+#define bta_av_cb (*bta_av_cb_ptr)
+#endif
+
+/* config struct */
+extern tBTA_AV_CFG *p_bta_av_cfg;
+extern const tBTA_AV_CFG bta_avk_cfg;
+extern const tBTA_AV_CFG bta_av_cfg;
+
+/* rc id config struct */
+extern UINT16 *p_bta_av_rc_id;
+extern UINT16 *p_bta_av_rc_id_ac;
+
+extern const tBTA_AV_SACT bta_av_a2d_action[];
+extern const tBTA_AV_CO_FUNCTS bta_av_a2d_cos;
+extern const tBTA_AV_SACT bta_av_vdp_action[];
+extern tAVDT_CTRL_CBACK * const bta_av_dt_cback[];
+extern void bta_av_stream_data_cback(UINT8 handle, BT_HDR *p_pkt, UINT32 time_stamp, UINT8 m_pt);
+
+/*****************************************************************************
+**  Function prototypes
+*****************************************************************************/
+/* utility functions */
+extern tBTA_AV_SCB *bta_av_hndl_to_scb(UINT16 handle);
+extern BOOLEAN bta_av_chk_start(tBTA_AV_SCB *p_scb);
+extern void bta_av_restore_switch (void);
+extern UINT16 bta_av_chk_mtu(tBTA_AV_SCB *p_scb, UINT16 mtu);
+extern void bta_av_conn_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data);
+extern UINT8 bta_av_rc_create(tBTA_AV_CB *p_cb, UINT8 role, UINT8 shdl, UINT8 lidx);
+extern void bta_av_stream_chg(tBTA_AV_SCB *p_scb, BOOLEAN started);
+extern BOOLEAN bta_av_is_scb_opening (tBTA_AV_SCB *p_scb);
+extern BOOLEAN bta_av_is_scb_incoming (tBTA_AV_SCB *p_scb);
+extern void bta_av_set_scb_sst_init (tBTA_AV_SCB *p_scb);
+extern BOOLEAN bta_av_is_scb_init (tBTA_AV_SCB *p_scb);
+extern void bta_av_set_scb_sst_incoming (tBTA_AV_SCB *p_scb);
+extern tBTA_AV_LCB * bta_av_find_lcb(BD_ADDR addr, UINT8 op);
+
+
+/* main functions */
+extern void bta_av_api_deregister(tBTA_AV_DATA *p_data);
+extern void bta_av_dup_audio_buf(tBTA_AV_SCB *p_scb, BT_HDR *p_buf);
+extern void bta_av_sm_execute(tBTA_AV_CB *p_cb, UINT16 event, tBTA_AV_DATA *p_data);
+extern void bta_av_ssm_execute(tBTA_AV_SCB *p_scb, UINT16 event, tBTA_AV_DATA *p_data);
+extern BOOLEAN bta_av_hdl_event(BT_HDR *p_msg);
+#if (defined(BTA_AV_DEBUG) && BTA_AV_DEBUG == TRUE)
+extern char *bta_av_evt_code(UINT16 evt_code);
+#endif
+extern BOOLEAN bta_av_switch_if_needed(tBTA_AV_SCB *p_scb);
+extern BOOLEAN bta_av_link_role_ok(tBTA_AV_SCB *p_scb, UINT8 bits);
+extern BOOLEAN bta_av_is_rcfg_sst(tBTA_AV_SCB *p_scb);
+
+/* nsm action functions */
+extern void bta_av_api_disconnect(tBTA_AV_DATA *p_data);
+extern void bta_av_sig_chg(tBTA_AV_DATA *p_data);
+extern void bta_av_signalling_timer(tBTA_AV_DATA *p_data);
+extern void bta_av_rc_disc_done(tBTA_AV_DATA *p_data);
+extern void bta_av_rc_closed(tBTA_AV_DATA *p_data);
+extern void bta_av_rc_disc(UINT8 disc);
+extern void bta_av_conn_chg(tBTA_AV_DATA *p_data);
+extern void bta_av_dereg_comp(tBTA_AV_DATA *p_data);
+
+/* sm action functions */
+extern void bta_av_disable (tBTA_AV_CB *p_cb, tBTA_AV_DATA *p_data);
+extern void bta_av_rc_opened (tBTA_AV_CB *p_cb, tBTA_AV_DATA *p_data);
+extern void bta_av_rc_remote_cmd (tBTA_AV_CB *p_cb, tBTA_AV_DATA *p_data);
+extern void bta_av_rc_vendor_cmd (tBTA_AV_CB *p_cb, tBTA_AV_DATA *p_data);
+extern void bta_av_rc_vendor_rsp (tBTA_AV_CB *p_cb, tBTA_AV_DATA *p_data);
+extern void bta_av_rc_msg (tBTA_AV_CB *p_cb, tBTA_AV_DATA *p_data);
+extern void bta_av_rc_close (tBTA_AV_CB *p_cb, tBTA_AV_DATA *p_data);
+extern void bta_av_rc_meta_rsp (tBTA_AV_CB *p_cb, tBTA_AV_DATA *p_data);
+extern void bta_av_rc_free_rsp (tBTA_AV_CB *p_cb, tBTA_AV_DATA *p_data);
+extern void bta_av_rc_free_msg (tBTA_AV_CB *p_cb, tBTA_AV_DATA *p_data);
+
+extern tBTA_AV_RCB * bta_av_get_rcb_by_shdl(UINT8 shdl);
+extern void bta_av_del_rc(tBTA_AV_RCB *p_rcb);
+
+/* ssm action functions */
+extern void bta_av_do_disc_a2d (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data);
+extern void bta_av_cleanup (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data);
+extern void bta_av_free_sdb (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data);
+extern void bta_av_config_ind (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data);
+extern void bta_av_disconnect_req (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data);
+extern void bta_av_security_req (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data);
+extern void bta_av_security_rsp (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data);
+extern void bta_av_setconfig_rsp (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data);
+extern void bta_av_str_opened (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data);
+extern void bta_av_security_ind (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data);
+extern void bta_av_security_cfm (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data);
+extern void bta_av_do_close (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data);
+extern void bta_av_connect_req (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data);
+extern void bta_av_sdp_failed (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data);
+extern void bta_av_disc_results (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data);
+extern void bta_av_disc_res_as_acp (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data);
+extern void bta_av_open_failed (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data);
+extern void bta_av_getcap_results (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data);
+extern void bta_av_setconfig_rej (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data);
+extern void bta_av_discover_req (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data);
+extern void bta_av_conn_failed (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data);
+extern void bta_av_do_start (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data);
+extern void bta_av_str_stopped (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data);
+extern void bta_av_reconfig (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data);
+extern void bta_av_data_path (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data);
+extern void bta_av_start_ok (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data);
+extern void bta_av_start_failed (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data);
+extern void bta_av_str_closed (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data);
+extern void bta_av_clr_cong (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data);
+extern void bta_av_suspend_cfm (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data);
+extern void bta_av_rcfg_str_ok (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data);
+extern void bta_av_rcfg_failed (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data);
+extern void bta_av_rcfg_connect (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data);
+extern void bta_av_rcfg_discntd (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data);
+extern void bta_av_suspend_cont (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data);
+extern void bta_av_rcfg_cfm (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data);
+extern void bta_av_rcfg_open (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data);
+extern void bta_av_security_rej (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data);
+extern void bta_av_open_rc (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data);
+extern void bta_av_chk_2nd_start (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data);
+extern void bta_av_save_caps (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data);
+extern void bta_av_rej_conn (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data);
+extern void bta_av_rej_conn (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data);
+extern void bta_av_set_use_rc (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data);
+extern void bta_av_cco_close (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data);
+extern void bta_av_switch_role (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data);
+extern void bta_av_role_res (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data);
+extern void bta_av_delay_co (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data);
+extern void bta_av_open_at_inc (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data);
+extern void bta_av_offload_req (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data);
+extern void bta_av_offload_rsp (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data);
+
+
+/* ssm action functions - vdp specific */
+extern void bta_av_do_disc_vdp (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data);
+extern void bta_av_vdp_str_opened (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data);
+extern void bta_av_reg_vdp (tAVDT_CS *p_cs, char *p_service_name, void *p_data);
+
+#endif /* BTA_AV_INT_H */
diff --git a/rtkbt/code/bt/bta/av/bta_av_main.c b/rtkbt/code/bt/bta/av/bta_av_main.c
new file mode 100755
index 0000000..735ee2c
--- /dev/null
+++ b/rtkbt/code/bt/bta/av/bta_av_main.c
@@ -0,0 +1,1405 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2004-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the main implementation file for the BTA advanced audio/video.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_bta_av"
+
+#include <assert.h>
+#include <string.h>
+
+#include "bt_target.h"
+#include "osi/include/log.h"
+
+#if defined(BTA_AV_INCLUDED) && (BTA_AV_INCLUDED == TRUE)
+#include "bta_av_co.h"
+#include "bta_av_int.h"
+#include "l2c_api.h"
+#include "l2cdefs.h"
+#include "utl.h"
+
+#if( defined BTA_AR_INCLUDED ) && (BTA_AR_INCLUDED == TRUE)
+#include "bta_ar_api.h"
+#endif
+
+/*****************************************************************************
+** Constants and types
+*****************************************************************************/
+
+/* AVDTP protocol timeout values */
+#define BTIF_AVK_SERVICE_NAME "Advanced Audio Sink"
+
+#ifndef BTA_AV_RET_TOUT
+#define BTA_AV_RET_TOUT     4
+#endif
+
+#ifndef BTA_AV_SIG_TOUT
+#define BTA_AV_SIG_TOUT     4
+#endif
+
+#ifndef BTA_AV_IDLE_TOUT
+#define BTA_AV_IDLE_TOUT    10
+#endif
+
+/* the delay time in milliseconds to retry role switch */
+#ifndef BTA_AV_RS_TIME_VAL
+#define BTA_AV_RS_TIME_VAL     1000
+#endif
+
+/* state machine states */
+enum
+{
+    BTA_AV_INIT_ST,
+    BTA_AV_OPEN_ST
+};
+
+/* state machine action enumeration list */
+enum
+{
+    BTA_AV_DISABLE,
+    BTA_AV_RC_OPENED,
+    BTA_AV_RC_REMOTE_CMD,
+    BTA_AV_RC_VENDOR_CMD,
+    BTA_AV_RC_VENDOR_RSP,
+    BTA_AV_RC_FREE_RSP,
+    BTA_AV_RC_FREE_MSG,
+    BTA_AV_RC_META_RSP,
+    BTA_AV_RC_MSG,
+    BTA_AV_RC_CLOSE,
+    BTA_AV_NUM_ACTIONS
+};
+
+#define BTA_AV_IGNORE       BTA_AV_NUM_ACTIONS
+
+/* type for action functions */
+typedef void (*tBTA_AV_ACTION)(tBTA_AV_CB *p_cb, tBTA_AV_DATA *p_data);
+
+/* action functions */
+const tBTA_AV_ACTION bta_av_action[] =
+{
+    bta_av_disable,
+    bta_av_rc_opened,
+    bta_av_rc_remote_cmd,
+    bta_av_rc_vendor_cmd,
+    bta_av_rc_vendor_rsp,
+    bta_av_rc_free_rsp,
+    bta_av_rc_free_msg,
+    bta_av_rc_meta_rsp,
+    bta_av_rc_msg,
+    bta_av_rc_close,
+    NULL
+};
+
+/* state table information */
+#define BTA_AV_ACTION_COL           0       /* position of actions */
+#define BTA_AV_NEXT_STATE           1       /* position of next state */
+#define BTA_AV_NUM_COLS             2       /* number of columns in state tables */
+
+/* state table for init state */
+static const UINT8 bta_av_st_init[][BTA_AV_NUM_COLS] =
+{
+/* Event                     Action 1               Next state */
+/* API_DISABLE_EVT */       {BTA_AV_DISABLE,        BTA_AV_INIT_ST },
+/* API_REMOTE_CMD_EVT */    {BTA_AV_IGNORE,         BTA_AV_INIT_ST },
+/* API_VENDOR_CMD_EVT */    {BTA_AV_IGNORE,         BTA_AV_INIT_ST },
+/* API_VENDOR_RSP_EVT */    {BTA_AV_IGNORE,         BTA_AV_INIT_ST },
+/* API_META_RSP_EVT */      {BTA_AV_RC_FREE_RSP,    BTA_AV_INIT_ST },
+/* API_RC_CLOSE_EVT */      {BTA_AV_IGNORE,         BTA_AV_INIT_ST },
+/* AVRC_OPEN_EVT */         {BTA_AV_RC_OPENED,      BTA_AV_OPEN_ST },
+/* AVRC_MSG_EVT */          {BTA_AV_RC_FREE_MSG,    BTA_AV_INIT_ST },
+/* AVRC_NONE_EVT */         {BTA_AV_IGNORE,         BTA_AV_INIT_ST },
+};
+
+/* state table for open state */
+static const UINT8 bta_av_st_open[][BTA_AV_NUM_COLS] =
+{
+/* Event                     Action 1               Next state */
+/* API_DISABLE_EVT */       {BTA_AV_DISABLE,        BTA_AV_INIT_ST },
+/* API_REMOTE_CMD_EVT */    {BTA_AV_RC_REMOTE_CMD,  BTA_AV_OPEN_ST },
+/* API_VENDOR_CMD_EVT */    {BTA_AV_RC_VENDOR_CMD,  BTA_AV_OPEN_ST },
+/* API_VENDOR_RSP_EVT */    {BTA_AV_RC_VENDOR_RSP,  BTA_AV_OPEN_ST },
+/* API_META_RSP_EVT */      {BTA_AV_RC_META_RSP,    BTA_AV_OPEN_ST },
+/* API_RC_CLOSE_EVT */      {BTA_AV_RC_CLOSE,       BTA_AV_OPEN_ST },
+/* AVRC_OPEN_EVT */         {BTA_AV_RC_OPENED,      BTA_AV_OPEN_ST },
+/* AVRC_MSG_EVT */          {BTA_AV_RC_MSG,         BTA_AV_OPEN_ST },
+/* AVRC_NONE_EVT */         {BTA_AV_IGNORE,         BTA_AV_INIT_ST },
+};
+
+/* type for state table */
+typedef const UINT8 (*tBTA_AV_ST_TBL)[BTA_AV_NUM_COLS];
+
+/* state table */
+static const tBTA_AV_ST_TBL bta_av_st_tbl[] =
+{
+    bta_av_st_init,
+    bta_av_st_open
+};
+
+typedef void (*tBTA_AV_NSM_ACT)(tBTA_AV_DATA *p_data);
+static void bta_av_api_enable(tBTA_AV_DATA *p_data);
+static void bta_av_api_register(tBTA_AV_DATA *p_data);
+#if (BTA_AV_SINK_INCLUDED == TRUE)
+static void bta_av_api_sink_enable(tBTA_AV_DATA *p_data);
+#endif
+static void bta_av_ci_data(tBTA_AV_DATA *p_data);
+#if (AVDT_REPORTING == TRUE)
+static void bta_av_rpc_conn(tBTA_AV_DATA *p_data);
+#endif
+static void bta_av_api_to_ssm(tBTA_AV_DATA *p_data);
+
+static void bta_av_sco_chg_cback(tBTA_SYS_CONN_STATUS status, UINT8 id, UINT8
+                                 app_id, BD_ADDR peer_addr);
+static void bta_av_sys_rs_cback (tBTA_SYS_CONN_STATUS status,UINT8 id, UINT8 app_id, BD_ADDR peer_addr);
+
+/* action functions */
+const tBTA_AV_NSM_ACT bta_av_nsm_act[] =
+{
+    bta_av_api_enable,      /* BTA_AV_API_ENABLE_EVT */
+    bta_av_api_register,    /* BTA_AV_API_REGISTER_EVT */
+    bta_av_api_deregister,  /* BTA_AV_API_DEREGISTER_EVT */
+    bta_av_api_disconnect,  /* BTA_AV_API_DISCONNECT_EVT */
+    bta_av_ci_data,         /* BTA_AV_CI_SRC_DATA_READY_EVT */
+    bta_av_sig_chg,         /* BTA_AV_SIG_CHG_EVT */
+    bta_av_signalling_timer, /* BTA_AV_SIGNALLING_TIMER_EVT */
+    bta_av_rc_disc_done,    /* BTA_AV_SDP_AVRC_DISC_EVT */
+    bta_av_rc_closed,       /* BTA_AV_AVRC_CLOSE_EVT */
+    bta_av_conn_chg,        /* BTA_AV_CONN_CHG_EVT */
+    bta_av_dereg_comp,      /* BTA_AV_DEREG_COMP_EVT */
+#if (BTA_AV_SINK_INCLUDED == TRUE)
+    bta_av_api_sink_enable, /* BTA_AV_API_SINK_ENABLE_EVT */
+#endif
+#if (AVDT_REPORTING == TRUE)
+    bta_av_rpc_conn,        /* BTA_AV_AVDT_RPT_CONN_EVT */
+#endif
+    bta_av_api_to_ssm,      /* BTA_AV_API_START_EVT */
+    bta_av_api_to_ssm,      /* BTA_AV_API_STOP_EVT */
+};
+
+/*****************************************************************************
+** Global data
+*****************************************************************************/
+
+/* AV control block */
+#if BTA_DYNAMIC_MEMORY == FALSE
+tBTA_AV_CB  bta_av_cb;
+#endif
+
+#if (defined(BTA_AV_DEBUG) && BTA_AV_DEBUG == TRUE)
+static char *bta_av_st_code(UINT8 state);
+#endif
+
+/*******************************************************************************
+**
+** Function         bta_av_api_enable
+**
+** Description      Handle an API enable event.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_av_api_enable(tBTA_AV_DATA *p_data)
+{
+    /* initialize control block */
+    memset(&bta_av_cb, 0, sizeof(tBTA_AV_CB));
+
+    for (int i = 0; i < BTA_AV_NUM_RCB; i++)
+        bta_av_cb.rcb[i].handle = BTA_AV_RC_HANDLE_NONE;
+
+    bta_av_cb.rc_acp_handle = BTA_AV_RC_HANDLE_NONE;
+
+    /*
+     * TODO: The "disable" event handling is missing - there we need
+     * to alarm_free() the alarms below.
+     */
+    bta_av_cb.link_signalling_timer = alarm_new("bta_av.link_signalling_timer");
+    bta_av_cb.accept_signalling_timer =
+        alarm_new("bta_av.accept_signalling_timer");
+
+    /* store parameters */
+    bta_av_cb.p_cback  = p_data->api_enable.p_cback;
+    bta_av_cb.features = p_data->api_enable.features;
+    bta_av_cb.sec_mask = p_data->api_enable.sec_mask;
+
+    tBTA_AV_ENABLE enable;
+    enable.features = bta_av_cb.features;
+
+    /* Register for SCO change event */
+    if (!(bta_av_cb.features & BTA_AV_FEAT_NO_SCO_SSPD))
+    {
+        bta_sys_sco_register(bta_av_sco_chg_cback);
+    }
+
+    /* call callback with enable event */
+    (*bta_av_cb.p_cback)(BTA_AV_ENABLE_EVT, (tBTA_AV *)&enable);
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_addr_to_scb
+**
+** Description      find the stream control block by the peer addr
+**
+** Returns          void
+**
+*******************************************************************************/
+static tBTA_AV_SCB * bta_av_addr_to_scb(BD_ADDR bd_addr)
+{
+    tBTA_AV_SCB * p_scb = NULL;
+    int         xx;
+
+    for(xx=0; xx<BTA_AV_NUM_STRS; xx++)
+    {
+        if(bta_av_cb.p_scb[xx])
+        {
+            if(!bdcmp(bd_addr, bta_av_cb.p_scb[xx]->peer_addr))
+            {
+                p_scb = bta_av_cb.p_scb[xx];
+                break;
+            }
+        }
+    }
+    return p_scb;
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_hndl_to_scb
+**
+** Description      find the stream control block by the handle
+**
+** Returns          void
+**
+*******************************************************************************/
+tBTA_AV_SCB * bta_av_hndl_to_scb(UINT16 handle)
+{
+    tBTA_AV_HNDL hndl = (tBTA_AV_HNDL)handle;
+    tBTA_AV_SCB * p_scb = NULL;
+    UINT8 idx = (hndl & BTA_AV_HNDL_MSK);
+
+    if(idx && (idx <= BTA_AV_NUM_STRS) )
+    {
+        p_scb = bta_av_cb.p_scb[idx-1];
+    }
+    return p_scb;
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_alloc_scb
+**
+** Description      allocate stream control block,
+**                  register the service to stack
+**                  create SDP record
+**
+** Returns          void
+**
+*******************************************************************************/
+static tBTA_AV_SCB * bta_av_alloc_scb(tBTA_AV_CHNL chnl)
+{
+    tBTA_AV_SCB *p_ret = NULL;
+    int         xx;
+    tBTA_AV_STATUS sts = BTA_AV_SUCCESS;
+
+    if(chnl == BTA_AV_CHNL_VIDEO)
+    {
+        if(p_bta_av_cfg->p_act_tbl == NULL || p_bta_av_cfg->p_reg == NULL)
+        {
+            APPL_TRACE_ERROR("Video streaming not supported");
+            sts = BTA_AV_FAIL;
+        }
+        else
+        {
+            /* allow only one Video channel */
+            if(bta_av_cb.reg_video)
+            {
+                APPL_TRACE_ERROR("Already registered");
+                sts = BTA_AV_FAIL;
+            }
+        }
+    }
+    else if(chnl != BTA_AV_CHNL_AUDIO)
+    {
+        APPL_TRACE_ERROR("bad channel: %d", chnl);
+        sts = BTA_AV_FAIL;
+    }
+
+    if(sts == BTA_AV_SUCCESS)
+    {
+        for(xx=0; xx<BTA_AV_NUM_STRS; xx++)
+        {
+            if(bta_av_cb.p_scb[xx] == NULL)
+            {
+                /* found an empty spot */
+                p_ret = (tBTA_AV_SCB *)osi_calloc(sizeof(tBTA_AV_SCB));
+                p_ret->rc_handle = BTA_AV_RC_HANDLE_NONE;
+                p_ret->chnl = chnl;
+                p_ret->hndl = (tBTA_AV_HNDL)((xx + 1) | chnl);
+                p_ret->hdi  = xx;
+                p_ret->a2d_list = list_new(NULL);
+                p_ret->avrc_ct_timer = alarm_new("bta_av.avrc_ct_timer");
+                bta_av_cb.p_scb[xx] = p_ret;
+                break;
+            }
+        }
+    }
+    return p_ret;
+}
+
+/*******************************************************************************
+*******************************************************************************/
+void bta_av_conn_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data)
+{
+    UINT16  evt = 0;
+    tBTA_AV_SCB *p_scb = NULL;
+    UNUSED(handle);
+
+#if( defined BTA_AR_INCLUDED ) && (BTA_AR_INCLUDED == TRUE)
+    if (event == BTA_AR_AVDT_CONN_EVT ||
+        event == AVDT_CONNECT_IND_EVT || event == AVDT_DISCONNECT_IND_EVT)
+#else
+    if (event == AVDT_CONNECT_IND_EVT || event == AVDT_DISCONNECT_IND_EVT)
+#endif
+    {
+        evt = BTA_AV_SIG_CHG_EVT;
+        if(AVDT_DISCONNECT_IND_EVT == event)
+            p_scb = bta_av_addr_to_scb(bd_addr);
+#if (defined(BTA_AV_DEBUG) && BTA_AV_DEBUG == TRUE)
+        else if (AVDT_CONNECT_IND_EVT == event)
+        {
+            APPL_TRACE_DEBUG("CONN_IND is ACP:%d", p_data->hdr.err_param);
+        }
+#endif
+
+        tBTA_AV_STR_MSG *p_msg =
+            (tBTA_AV_STR_MSG *)osi_malloc(sizeof(tBTA_AV_STR_MSG));
+        p_msg->hdr.event = evt;
+        p_msg->hdr.layer_specific = event;
+        p_msg->hdr.offset = p_data->hdr.err_param;
+        bdcpy(p_msg->bd_addr, bd_addr);
+#if (defined(BTA_AV_DEBUG) && BTA_AV_DEBUG == TRUE)
+        if(p_scb) {
+            APPL_TRACE_DEBUG("scb hndl x%x, role x%x", p_scb->hndl, p_scb->role);
+        }
+#endif
+        APPL_TRACE_DEBUG("conn_cback bd_addr:%02x-%02x-%02x-%02x-%02x-%02x",
+                         bd_addr[0], bd_addr[1],
+                         bd_addr[2], bd_addr[3],
+                         bd_addr[4], bd_addr[5]);
+        bta_sys_sendmsg(p_msg);
+    }
+}
+
+#if AVDT_REPORTING == TRUE
+/*******************************************************************************
+**
+** Function         bta_av_a2dp_report_cback
+**
+** Description      A2DP report callback.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_av_a2dp_report_cback(UINT8 handle, AVDT_REPORT_TYPE type,
+                                    tAVDT_REPORT_DATA *p_data)
+{
+    UNUSED(handle);
+    UNUSED(type);
+    UNUSED(p_data);
+    /* Do not need to handle report data for now.
+     * This empty function is here for conformance reasons. */
+}
+#endif
+
+#if (BTA_AV_SINK_INCLUDED == TRUE)
+/*******************************************************************************
+**
+** Function         bta_av_api_sink_enable
+**
+** Description      activate, deactive A2DP Sink,
+**
+** Returns          void
+**
+*******************************************************************************/
+
+static void bta_av_api_sink_enable(tBTA_AV_DATA *p_data)
+{
+    UINT16 activate_sink = 0;
+    activate_sink = p_data->hdr.layer_specific;
+    APPL_TRACE_DEBUG("bta_av_api_sink_enable %d ", activate_sink)
+    char p_service_name[BTA_SERVICE_NAME_LEN+1];
+    strlcpy(p_service_name, BTIF_AVK_SERVICE_NAME, BTA_SERVICE_NAME_LEN);
+
+    if (activate_sink)
+    {
+        AVDT_SINK_Activate();
+        if (bta_av_cb.sdp_a2d_snk_handle == 0)
+        {
+            bta_av_cb.sdp_a2d_snk_handle = SDP_CreateRecord();
+            A2D_AddRecord(UUID_SERVCLASS_AUDIO_SINK, p_service_name, NULL,
+                          A2D_SUPF_PLAYER, bta_av_cb.sdp_a2d_snk_handle);
+            bta_sys_add_uuid(UUID_SERVCLASS_AUDIO_SINK);
+        }
+    }
+    else
+    {
+        AVDT_SINK_Deactivate();
+        if (bta_av_cb.sdp_a2d_snk_handle != 0)
+        {
+            SDP_DeleteRecord(bta_av_cb.sdp_a2d_snk_handle);
+            bta_av_cb.sdp_a2d_snk_handle = 0;
+            bta_sys_remove_uuid(UUID_SERVCLASS_AUDIO_SINK);
+        }
+    }
+}
+#endif
+/*******************************************************************************
+**
+** Function         bta_av_api_register
+**
+** Description      allocate stream control block,
+**                  register the service to stack
+**                  create SDP record
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_av_api_register(tBTA_AV_DATA *p_data)
+{
+    tBTA_AV_REGISTER    registr;
+    tBTA_AV_SCB         *p_scb;    /* stream control block */
+    tAVDT_REG       reg;
+    tAVDT_CS        cs;
+    char            *p_service_name;
+    tBTA_AV_CODEC   codec_type;
+    tBTA_UTL_COD    cod;
+    UINT8           index = 0;
+
+    memset(&cs,0,sizeof(tAVDT_CS));
+
+    registr.status = BTA_AV_FAIL_RESOURCES;
+    registr.app_id = p_data->api_reg.app_id;
+    registr.chnl   = (tBTA_AV_CHNL)p_data->hdr.layer_specific;
+
+    UINT16 profile_initialized = p_data->api_reg.service_uuid;
+    if (profile_initialized == UUID_SERVCLASS_AUDIO_SINK)
+    {
+        p_bta_av_cfg  = (tBTA_AV_CFG *) &bta_avk_cfg;
+    }
+    else if (profile_initialized == UUID_SERVCLASS_AUDIO_SOURCE)
+    {
+        p_bta_av_cfg  = (tBTA_AV_CFG *) &bta_av_cfg;
+    }
+
+    do
+    {
+        p_scb = bta_av_alloc_scb(registr.chnl);
+        if(p_scb == NULL)
+        {
+            APPL_TRACE_ERROR("failed to alloc SCB");
+            break;
+        }
+
+        registr.hndl    = p_scb->hndl;
+        p_scb->app_id   = registr.app_id;
+
+        /* initialize the stream control block */
+        registr.status = BTA_AV_SUCCESS;
+
+        if((bta_av_cb.reg_audio + bta_av_cb.reg_video) == 0)
+        {
+            /* the first channel registered. register to AVDTP */
+            reg.ctrl_mtu = p_bta_av_cfg->sig_mtu;
+            reg.ret_tout = BTA_AV_RET_TOUT;
+            reg.sig_tout = BTA_AV_SIG_TOUT;
+            reg.idle_tout = BTA_AV_IDLE_TOUT;
+            reg.sec_mask = bta_av_cb.sec_mask;
+#if( defined BTA_AR_INCLUDED ) && (BTA_AR_INCLUDED == TRUE)
+            bta_ar_reg_avdt(&reg, bta_av_conn_cback, BTA_ID_AV);
+#endif
+            bta_sys_role_chg_register(&bta_av_sys_rs_cback);
+
+            /* create remote control TG service if required */
+            if (bta_av_cb.features & (BTA_AV_FEAT_RCTG))
+            {
+                /* register with no authorization; let AVDTP use authorization instead */
+#if( defined BTA_AR_INCLUDED ) && (BTA_AR_INCLUDED == TRUE)
+#if (BTA_AV_WITH_AVCTP_AUTHORIZATION == TRUE)
+                bta_ar_reg_avct(p_bta_av_cfg->avrc_mtu, p_bta_av_cfg->avrc_br_mtu,
+                                bta_av_cb.sec_mask, BTA_ID_AV);
+#else
+                bta_ar_reg_avct(p_bta_av_cfg->avrc_mtu, p_bta_av_cfg->avrc_br_mtu,
+                                (UINT8)(bta_av_cb.sec_mask & (~BTA_SEC_AUTHORIZE)), BTA_ID_AV);
+#endif
+                if (profile_initialized == UUID_SERVCLASS_AUDIO_SOURCE)
+                {
+                    bta_ar_reg_avrc(UUID_SERVCLASS_AV_REM_CTRL_TARGET, "AV Remote Control Target",
+                                   NULL, p_bta_av_cfg->avrc_tg_cat, BTA_ID_AV,
+                                   (bta_av_cb.features & BTA_AV_FEAT_BROWSE), AVRC_REV_1_3);
+                }
+                else if (profile_initialized == UUID_SERVCLASS_AUDIO_SINK)
+                {
+                    // Initialize AVRCP1.4 to provide Absolute Volume control.
+                    bta_ar_reg_avrc(UUID_SERVCLASS_AV_REM_CTRL_TARGET, "AV Remote Control Target",
+                                   NULL, p_bta_av_cfg->avrc_tg_cat, BTA_ID_AV,
+                                   (bta_av_cb.features & BTA_AV_FEAT_BROWSE), AVRC_REV_1_4);
+                }
+#endif
+            }
+
+            /* Set the Capturing service class bit */
+            if (profile_initialized == UUID_SERVCLASS_AUDIO_SOURCE)
+                cod.service = BTM_COD_SERVICE_CAPTURING;
+            else if (profile_initialized == UUID_SERVCLASS_AUDIO_SINK)
+                cod.service = BTM_COD_SERVICE_RENDERING;
+            utl_set_device_class(&cod, BTA_UTL_SET_COD_SERVICE_CLASS);
+        } /* if 1st channel */
+
+        /* get stream configuration and create stream */
+        /* memset(&cs.cfg,0,sizeof(tAVDT_CFG)); */
+        cs.cfg.num_codec = 1;
+
+
+        /*
+         * memset of cs takes care setting call back pointers to null.
+        cs.p_data_cback = NULL;
+        cs.p_report_cback = NULL;
+        */
+        cs.nsc_mask = AVDT_NSC_RECONFIG |
+              ((bta_av_cb.features & BTA_AV_FEAT_PROTECT) ? 0 : AVDT_NSC_SECURITY);
+        APPL_TRACE_DEBUG("nsc_mask: 0x%x", cs.nsc_mask);
+
+        if (p_data->api_reg.p_service_name[0] == 0)
+        {
+            p_service_name = NULL;
+        }
+        else
+        {
+            p_service_name = p_data->api_reg.p_service_name;
+        }
+
+        p_scb->suspend_sup  = TRUE;
+        p_scb->recfg_sup    = TRUE;
+        p_scb->skip_sdp     = FALSE;
+
+        cs.p_ctrl_cback  = bta_av_dt_cback[p_scb->hdi];
+        if(registr.chnl == BTA_AV_CHNL_AUDIO)
+        {
+            /* set up the audio stream control block */
+            p_scb->p_act_tbl = (const tBTA_AV_ACT *)bta_av_a2d_action;
+            p_scb->p_cos     = &bta_av_a2d_cos;
+            p_scb->media_type= AVDT_MEDIA_AUDIO;
+            cs.cfg.psc_mask  = AVDT_PSC_TRANS;
+            cs.media_type    = AVDT_MEDIA_AUDIO;
+            cs.mtu           = p_bta_av_cfg->audio_mtu;
+            cs.flush_to      = L2CAP_DEFAULT_FLUSH_TO;
+#if AVDT_REPORTING == TRUE
+            if(bta_av_cb.features & BTA_AV_FEAT_REPORT)
+            {
+                cs.cfg.psc_mask |= AVDT_PSC_REPORT;
+                cs.p_report_cback = bta_av_a2dp_report_cback;
+#if AVDT_MULTIPLEXING == TRUE
+                cs.cfg.mux_tsid_report = 2;
+#endif
+            }
+#endif
+            if(bta_av_cb.features & BTA_AV_FEAT_DELAY_RPT)
+                cs.cfg.psc_mask |= AVDT_PSC_DELAY_RPT;
+
+            if (profile_initialized == UUID_SERVCLASS_AUDIO_SOURCE)
+            {
+                cs.tsep = AVDT_TSEP_SRC;
+                index = 0;
+            }
+            else if (profile_initialized == UUID_SERVCLASS_AUDIO_SINK)
+            {
+                cs.tsep = AVDT_TSEP_SNK;
+                cs.p_data_cback = bta_av_stream_data_cback;
+                index = 1;
+            }
+
+            /* Initialize Handles to zero */
+            for (int xx=0; xx < BTA_AV_MAX_SEPS; xx++)
+            {
+                p_scb->seps[xx].av_handle = 0;
+            }
+
+            /* keep the configuration in the stream control block */
+            memcpy(&p_scb->cfg, &cs.cfg, sizeof(tAVDT_CFG));
+            if ((*bta_av_a2d_cos.init)(&codec_type, cs.cfg.codec_info,
+                &cs.cfg.num_protect, cs.cfg.protect_info, index) == TRUE)
+            {
+                if(AVDT_CreateStream(&p_scb->seps[index].av_handle, &cs) == AVDT_SUCCESS)
+                {
+                    p_scb->seps[index].codec_type = codec_type;
+                    p_scb->seps[index].tsep = cs.tsep;
+                    if(cs.tsep == AVDT_TSEP_SNK)
+                        p_scb->seps[index].p_app_data_cback = p_data->api_reg.p_app_data_cback;
+                    else
+                        p_scb->seps[index].p_app_data_cback = NULL; /* In case of A2DP SOURCE we don't need a callback to handle media packets */
+
+                }
+            }
+
+            if(!bta_av_cb.reg_audio)
+            {
+                bta_av_cb.sdp_a2d_handle = 0;
+#if (BTA_AV_SINK_INCLUDED == TRUE)
+                bta_av_cb.sdp_a2d_snk_handle = 0;
+#endif
+                if (profile_initialized == UUID_SERVCLASS_AUDIO_SOURCE)
+                {
+                    /* create the SDP records on the 1st audio channel */
+                    bta_av_cb.sdp_a2d_handle = SDP_CreateRecord();
+                    A2D_AddRecord(UUID_SERVCLASS_AUDIO_SOURCE, p_service_name, NULL,
+                                  A2D_SUPF_PLAYER, bta_av_cb.sdp_a2d_handle);
+                    bta_sys_add_uuid(UUID_SERVCLASS_AUDIO_SOURCE);
+                }
+                else if (profile_initialized == UUID_SERVCLASS_AUDIO_SINK)
+                {
+#if (BTA_AV_SINK_INCLUDED == TRUE)
+                    bta_av_cb.sdp_a2d_snk_handle = SDP_CreateRecord();
+                    A2D_AddRecord(UUID_SERVCLASS_AUDIO_SINK, p_service_name, NULL,
+                                  A2D_SUPF_PLAYER, bta_av_cb.sdp_a2d_snk_handle);
+                    bta_sys_add_uuid(UUID_SERVCLASS_AUDIO_SINK);
+#endif
+                }
+                /* start listening when A2DP is registered */
+                if (bta_av_cb.features & BTA_AV_FEAT_RCTG)
+                    bta_av_rc_create(&bta_av_cb, AVCT_ACP, 0, BTA_AV_NUM_LINKS + 1);
+
+                /* if the AV and AVK are both supported, it cannot support the CT role */
+                if (bta_av_cb.features & (BTA_AV_FEAT_RCCT))
+                {
+                    /* if TG is not supported, we need to register to AVCT now */
+                    if ((bta_av_cb.features & (BTA_AV_FEAT_RCTG)) == 0)
+                    {
+#if( defined BTA_AR_INCLUDED ) && (BTA_AR_INCLUDED == TRUE)
+#if (BTA_AV_WITH_AVCTP_AUTHORIZATION == TRUE)
+                        bta_ar_reg_avct(p_bta_av_cfg->avrc_mtu, p_bta_av_cfg->avrc_br_mtu,
+                                        bta_av_cb.sec_mask, BTA_ID_AV);
+#else
+                        bta_ar_reg_avct(p_bta_av_cfg->avrc_mtu, p_bta_av_cfg->avrc_br_mtu,
+                                        (UINT8)(bta_av_cb.sec_mask & (~BTA_SEC_AUTHORIZE)), BTA_ID_AV);
+#endif
+#endif
+                        bta_av_rc_create(&bta_av_cb, AVCT_ACP, 0, BTA_AV_NUM_LINKS + 1);
+                    }
+#if( defined BTA_AR_INCLUDED ) && (BTA_AR_INCLUDED == TRUE)
+                    /* create an SDP record as AVRC CT. We create 1.3 for SOURCE
+                     * because we rely on feature bits being scanned by external
+                     * devices more than the profile version itself.
+                     */
+                    if ((profile_initialized == UUID_SERVCLASS_AUDIO_SOURCE) ||
+                        (profile_initialized == UUID_SERVCLASS_AUDIO_SINK))
+                    {
+                        bta_ar_reg_avrc(UUID_SERVCLASS_AV_REMOTE_CONTROL, NULL, NULL,
+                        p_bta_av_cfg->avrc_ct_cat, BTA_ID_AV,
+                        (bta_av_cb.features & BTA_AV_FEAT_BROWSE), AVRC_REV_1_3);
+                    }
+#endif
+                }
+            }
+            bta_av_cb.reg_audio |= BTA_AV_HNDL_TO_MSK(p_scb->hdi);
+            APPL_TRACE_DEBUG("reg_audio: 0x%x",bta_av_cb.reg_audio);
+        }
+        else
+        {
+            bta_av_cb.reg_video = BTA_AV_HNDL_TO_MSK(p_scb->hdi);
+            bta_av_cb.sdp_vdp_handle = SDP_CreateRecord();
+            /* register the video channel */
+            /* no need to verify the function pointer here. it's verified prior */
+            (*p_bta_av_cfg->p_reg)(&cs, p_service_name, p_scb);
+        }
+    } while (0);
+
+    /* call callback with register event */
+    (*bta_av_cb.p_cback)(BTA_AV_REGISTER_EVT, (tBTA_AV *)&registr);
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_api_deregister
+**
+** Description      de-register a channel
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_api_deregister(tBTA_AV_DATA *p_data)
+{
+    tBTA_AV_SCB *p_scb = bta_av_hndl_to_scb(p_data->hdr.layer_specific);
+
+    if(p_scb)
+    {
+        p_scb->deregistring = TRUE;
+        bta_av_ssm_execute(p_scb, BTA_AV_API_CLOSE_EVT, p_data);
+    }
+    else
+    {
+        bta_av_dereg_comp(p_data);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_ci_data
+**
+** Description      forward the BTA_AV_CI_SRC_DATA_READY_EVT to stream state machine
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_av_ci_data(tBTA_AV_DATA *p_data)
+{
+    tBTA_AV_SCB *p_scb;
+    int     i;
+    UINT8   chnl = (UINT8)p_data->hdr.layer_specific;
+
+    for( i=0; i < BTA_AV_NUM_STRS; i++ )
+    {
+        p_scb = bta_av_cb.p_scb[i];
+
+        if(p_scb && p_scb->chnl == chnl)
+        {
+            bta_av_ssm_execute(p_scb, BTA_AV_SRC_DATA_READY_EVT, p_data);
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_rpc_conn
+**
+** Description      report report channel open
+**
+** Returns          void
+**
+*******************************************************************************/
+#if (AVDT_REPORTING == TRUE)
+static void bta_av_rpc_conn(tBTA_AV_DATA *p_data)
+{
+    UNUSED(p_data);
+}
+#endif
+
+/*******************************************************************************
+**
+** Function         bta_av_api_to_ssm
+**
+** Description      forward the API request to stream state machine
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_av_api_to_ssm(tBTA_AV_DATA *p_data)
+{
+    int xx;
+    UINT16 event = p_data->hdr.event - BTA_AV_FIRST_A2S_API_EVT + BTA_AV_FIRST_A2S_SSM_EVT;
+
+    for(xx=0; xx<BTA_AV_NUM_STRS; xx++)
+    {
+        bta_av_ssm_execute(bta_av_cb.p_scb[xx], event, p_data);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_chk_start
+**
+** Description      if this is audio channel, check if more than one audio
+**                  channel is connected & already started.
+**
+** Returns          TRUE, if need api_start
+**
+*******************************************************************************/
+BOOLEAN bta_av_chk_start(tBTA_AV_SCB *p_scb)
+{
+    BOOLEAN start = FALSE;
+    tBTA_AV_SCB *p_scbi;
+    int i;
+
+    if(p_scb->chnl == BTA_AV_CHNL_AUDIO)
+    {
+        if ((bta_av_cb.audio_open_cnt >= 2) &&
+            ((0 == (p_scb->role & BTA_AV_ROLE_AD_ACP)) ||       /* Outgoing connection or   */
+             (bta_av_cb.features & BTA_AV_FEAT_ACP_START)))     /* auto-starting option     */
+        {
+            /* more than one audio channel is connected */
+            /* if this is the 2nd stream as ACP, give INT a chance to issue the START command */
+            for(i=0; i<BTA_AV_NUM_STRS; i++)
+            {
+                p_scbi = bta_av_cb.p_scb[i];
+                if(p_scbi && p_scbi->chnl == BTA_AV_CHNL_AUDIO && p_scbi->co_started)
+                {
+                    start = TRUE;
+                    /* may need to update the flush timeout of this already started stream */
+                    if(p_scbi->co_started != bta_av_cb.audio_open_cnt)
+                    {
+                        p_scbi->co_started = bta_av_cb.audio_open_cnt;
+                        L2CA_SetFlushTimeout(p_scbi->peer_addr, p_bta_av_cfg->p_audio_flush_to[p_scbi->co_started - 1] );
+                    }
+                }
+            }
+        }
+    }
+    return start;
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_restore_switch
+**
+** Description      assume that the caller of this function already makes
+**                  sure that there's only one ACL connection left
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_restore_switch (void)
+{
+    tBTA_AV_CB   *p_cb = &bta_av_cb;
+    int     i;
+    UINT8   mask;
+
+    APPL_TRACE_DEBUG("reg_audio: 0x%x",bta_av_cb.reg_audio);
+    for(i=0; i<BTA_AV_NUM_STRS; i++)
+    {
+        mask = BTA_AV_HNDL_TO_MSK(i);
+        if (p_cb->conn_audio == mask)
+        {
+            if (p_cb->p_scb[i])
+            {
+                bta_sys_set_policy(BTA_ID_AV, HCI_ENABLE_MASTER_SLAVE_SWITCH, p_cb->p_scb[i]->peer_addr);
+            }
+            break;
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_sys_rs_cback
+**
+** Description      Receives the role change event from dm
+**
+** Returns          (BTA_SYS_ROLE_CHANGE, new_role, hci_status, p_bda)
+**
+*******************************************************************************/
+static void bta_av_sys_rs_cback (tBTA_SYS_CONN_STATUS status,UINT8 id, UINT8 app_id, BD_ADDR peer_addr)
+{
+    int         i;
+    tBTA_AV_SCB *p_scb = NULL;
+    UINT8       cur_role;
+    UINT8       peer_idx = 0;
+    UNUSED(status);
+
+    APPL_TRACE_DEBUG("bta_av_sys_rs_cback: %d", bta_av_cb.rs_idx);
+    for(i=0; i<BTA_AV_NUM_STRS; i++)
+    {
+        /* loop through all the SCBs to find matching peer addresses and report the role change event */
+        /* note that more than one SCB (a2dp & vdp) maybe waiting for this event */
+        p_scb = bta_av_cb.p_scb[i];
+        if (p_scb && (bdcmp (peer_addr, p_scb->peer_addr) == 0)) {
+            tBTA_AV_ROLE_RES *p_buf =
+                (tBTA_AV_ROLE_RES *)osi_malloc(sizeof(tBTA_AV_ROLE_RES));
+            APPL_TRACE_DEBUG("new_role:%d, hci_status:x%x hndl: x%x", id, app_id, p_scb->hndl);
+            /*
+            if ((id != BTM_ROLE_MASTER) && (app_id != HCI_SUCCESS))
+            {
+                bta_sys_set_policy(BTA_ID_AV, (HCI_ENABLE_MASTER_SLAVE_SWITCH|HCI_ENABLE_SNIFF_MODE), p_scb->peer_addr);
+            }
+            */
+            p_buf->hdr.event = BTA_AV_ROLE_CHANGE_EVT;
+            p_buf->hdr.layer_specific = p_scb->hndl;
+            p_buf->new_role = id;
+            p_buf->hci_status = app_id;
+            bta_sys_sendmsg(p_buf);
+
+            peer_idx = p_scb->hdi + 1;  /* Handle index for the peer_addr */
+        }
+    }
+
+    /* restore role switch policy, if role switch failed */
+    if ((HCI_SUCCESS != app_id) &&
+        (BTM_GetRole (peer_addr, &cur_role) == BTM_SUCCESS) &&
+        (cur_role == BTM_ROLE_SLAVE) )
+    {
+        bta_sys_set_policy(BTA_ID_AV, HCI_ENABLE_MASTER_SLAVE_SWITCH, peer_addr);
+    }
+
+    /* if BTA_AvOpen() was called for other device, which caused the role switch of the peer_addr,  */
+    /* we need to continue opening process for the BTA_AvOpen().                                    */
+    if ((bta_av_cb.rs_idx != 0) && (bta_av_cb.rs_idx != peer_idx))
+    {
+        if ((bta_av_cb.rs_idx -1) < BTA_AV_NUM_STRS)
+        {
+            p_scb = bta_av_cb.p_scb[bta_av_cb.rs_idx - 1];
+        }
+        if (p_scb && p_scb->q_tag == BTA_AV_Q_TAG_OPEN)
+        {
+            APPL_TRACE_DEBUG ("bta_av_sys_rs_cback: rs_idx(%d), hndl:x%x q_tag: %d",
+                bta_av_cb.rs_idx, p_scb->hndl, p_scb->q_tag);
+
+            if(HCI_SUCCESS == app_id || HCI_ERR_NO_CONNECTION == app_id)
+                p_scb->q_info.open.switch_res = BTA_AV_RS_OK;
+            else
+                p_scb->q_info.open.switch_res = BTA_AV_RS_FAIL;
+
+            /* Continue av open process */
+            bta_av_do_disc_a2d (p_scb, (tBTA_AV_DATA *)&(p_scb->q_info.open));
+        }
+
+        bta_av_cb.rs_idx = 0;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_sco_chg_cback
+**
+** Description      receive & process the SCO connection up/down event from sys.
+**                  call setup also triggers this callback, to suspend av before sco
+**                  activity happens, or to resume av once call ends.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_av_sco_chg_cback(tBTA_SYS_CONN_STATUS status, UINT8 id, UINT8
+                                 app_id, BD_ADDR peer_addr)
+{
+    tBTA_AV_SCB *p_scb;
+    int     i;
+    tBTA_AV_API_STOP stop;
+    UNUSED(app_id);
+    UNUSED(peer_addr);
+
+    APPL_TRACE_DEBUG("bta_av_sco_chg_cback:%d status:%d", id, status);
+    if(id)
+    {
+        bta_av_cb.sco_occupied = TRUE;
+
+        /* either BTA_SYS_SCO_OPEN or BTA_SYS_SCO_CLOSE with remaining active SCO */
+        for(i=0; i<BTA_AV_NUM_STRS; i++)
+        {
+            p_scb = bta_av_cb.p_scb[i];
+
+            if( p_scb && p_scb->co_started && (p_scb->sco_suspend == FALSE))
+            {
+                APPL_TRACE_DEBUG("suspending scb:%d", i);
+                /* scb is used and started, not suspended automatically */
+                p_scb->sco_suspend = TRUE;
+                stop.flush   = FALSE;
+                stop.suspend = TRUE;
+                bta_av_ssm_execute(p_scb, BTA_AV_AP_STOP_EVT, (tBTA_AV_DATA *)&stop);
+            }
+        }
+    }
+    else
+    {
+        bta_av_cb.sco_occupied = FALSE;
+
+        for(i=0; i<BTA_AV_NUM_STRS; i++)
+        {
+            p_scb = bta_av_cb.p_scb[i];
+
+            if( p_scb && p_scb->sco_suspend ) /* scb is used and suspended for SCO */
+            {
+                APPL_TRACE_DEBUG("starting scb:%d", i);
+                bta_av_ssm_execute(p_scb, BTA_AV_AP_START_EVT, NULL);
+            }
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_switch_if_needed
+**
+** Description      This function checks if there is another existing AV
+**                  channel that is local as slave role.
+**                  If so, role switch and remove it from link policy.
+**
+** Returns          TRUE, if role switch is done
+**
+*******************************************************************************/
+BOOLEAN bta_av_switch_if_needed(tBTA_AV_SCB *p_scb)
+{
+    UINT8 role;
+    BOOLEAN needed = FALSE;
+    tBTA_AV_SCB *p_scbi;
+    int i;
+    UINT8       mask;
+
+    for(i=0; i<BTA_AV_NUM_STRS; i++)
+    {
+        mask = BTA_AV_HNDL_TO_MSK(i);
+        p_scbi = bta_av_cb.p_scb[i];
+        if( p_scbi && (p_scb->hdi != i) && /* not the original channel */
+            ((bta_av_cb.conn_audio & mask) ||/* connected audio */
+            (bta_av_cb.conn_video & mask)) ) /* connected video */
+        {
+            BTM_GetRole(p_scbi->peer_addr, &role);
+            /* this channel is open - clear the role switch link policy for this link */
+            if(BTM_ROLE_MASTER != role)
+            {
+                if (bta_av_cb.features & BTA_AV_FEAT_MASTER)
+                    bta_sys_clear_policy(BTA_ID_AV, HCI_ENABLE_MASTER_SLAVE_SWITCH, p_scbi->peer_addr);
+                if (BTM_CMD_STARTED != BTM_SwitchRole(p_scbi->peer_addr, BTM_ROLE_MASTER, NULL))
+                {
+                    /* can not switch role on SCBI
+                     * start the timer on SCB - because this function is ONLY called when SCB gets API_OPEN */
+                    bta_sys_start_timer(p_scb->avrc_ct_timer,
+                                        BTA_AV_RS_TIME_VAL,
+                                        BTA_AV_AVRC_TIMER_EVT, p_scb->hndl);
+                }
+                needed = TRUE;
+                /* mark the original channel as waiting for RS result */
+                bta_av_cb.rs_idx = p_scb->hdi + 1;
+                break;
+            }
+        }
+    }
+    return needed;
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_link_role_ok
+**
+** Description      This function checks if the SCB has existing ACL connection
+**                  If so, check if the link role fits the requirements.
+**
+** Returns          TRUE, if role is ok
+**
+*******************************************************************************/
+BOOLEAN bta_av_link_role_ok(tBTA_AV_SCB *p_scb, UINT8 bits)
+{
+    UINT8 role;
+    BOOLEAN is_ok = TRUE;
+
+    if (BTM_GetRole(p_scb->peer_addr, &role) == BTM_SUCCESS)
+    {
+        LOG_INFO(LOG_TAG, "%s hndl:x%x role:%d conn_audio:x%x bits:%d features:x%x",
+                __func__, p_scb->hndl, role, bta_av_cb.conn_audio, bits,
+                bta_av_cb.features);
+        if (BTM_ROLE_MASTER != role && (A2D_BitsSet(bta_av_cb.conn_audio) > bits || (bta_av_cb.features & BTA_AV_FEAT_MASTER)))
+        {
+            if (bta_av_cb.features & BTA_AV_FEAT_MASTER)
+                bta_sys_clear_policy(BTA_ID_AV, HCI_ENABLE_MASTER_SLAVE_SWITCH, p_scb->peer_addr);
+
+            if (BTM_CMD_STARTED != BTM_SwitchRole(p_scb->peer_addr, BTM_ROLE_MASTER, NULL))
+            {
+                /* can not switch role on SCB - start the timer on SCB */
+            }
+            is_ok = FALSE;
+            p_scb->wait |= BTA_AV_WAIT_ROLE_SW_RES_START;
+
+        }
+    }
+
+    return is_ok;
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_chk_mtu
+**
+** Description      if this is audio channel, check if more than one audio
+**                  channel is connected.
+**
+** Returns          The smallest mtu of the connected audio channels
+**
+*******************************************************************************/
+UINT16 bta_av_chk_mtu(tBTA_AV_SCB *p_scb, UINT16 mtu)
+{
+    UINT16 ret_mtu = BTA_AV_MAX_A2DP_MTU;
+    tBTA_AV_SCB *p_scbi;
+    int i;
+    UINT8   mask;
+    UNUSED(mtu);
+
+    /* TODO_MV mess with the mtu according to the number of EDR/non-EDR headsets */
+    if(p_scb->chnl == BTA_AV_CHNL_AUDIO)
+    {
+        if(bta_av_cb.audio_open_cnt >= 2)
+        {
+            /* more than one audio channel is connected */
+            for(i=0; i<BTA_AV_NUM_STRS; i++)
+            {
+                p_scbi = bta_av_cb.p_scb[i];
+                if((p_scb != p_scbi) && p_scbi && (p_scbi->chnl == BTA_AV_CHNL_AUDIO) )
+                {
+                    mask = BTA_AV_HNDL_TO_MSK(i);
+                    APPL_TRACE_DEBUG("[%d] mtu: %d, mask:0x%x",
+                        i, p_scbi->stream_mtu, mask);
+                    if(bta_av_cb.conn_audio & mask)
+                    {
+                        if(ret_mtu > p_scbi->stream_mtu)
+                            ret_mtu = p_scbi->stream_mtu;
+                    }
+                }
+            }
+        }
+        APPL_TRACE_DEBUG("bta_av_chk_mtu audio count:%d, conn_audio:0x%x, ret:%d",
+            bta_av_cb.audio_open_cnt, bta_av_cb.conn_audio, ret_mtu);
+    }
+    return ret_mtu;
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_dup_audio_buf
+**
+** Description      dup the audio data to the q_info.a2d of other audio channels
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_dup_audio_buf(tBTA_AV_SCB *p_scb, BT_HDR *p_buf)
+{
+    /* Test whether there is more than one audio channel connected */
+    if ((p_buf == NULL) || (bta_av_cb.audio_open_cnt < 2))
+        return;
+
+    UINT16 copy_size = BT_HDR_SIZE + p_buf->len + p_buf->offset;
+    for (int i = 0; i < BTA_AV_NUM_STRS; i++) {
+        tBTA_AV_SCB *p_scbi = bta_av_cb.p_scb[i];
+
+        if (i == p_scb->hdi)
+            continue;           /* Ignore the original channel */
+        if ((p_scbi == NULL) || !p_scbi->co_started)
+            continue;           /* Ignore if SCB is not used or started */
+        if (!(bta_av_cb.conn_audio & BTA_AV_HNDL_TO_MSK(i)))
+            continue;           /* Audio is not connected */
+
+        /* Enqueue the data */
+        BT_HDR *p_new = (BT_HDR *)osi_malloc(copy_size);
+        memcpy(p_new, p_buf, copy_size);
+        list_append(p_scbi->a2d_list, p_new);
+
+        if (list_length(p_scbi->a2d_list) > p_bta_av_cfg->audio_mqs) {
+            // Drop the oldest packet
+            bta_av_co_audio_drop(p_scbi->hndl);
+            BT_HDR *p_buf_drop = list_front(p_scbi->a2d_list);
+            list_remove(p_scbi->a2d_list, p_buf_drop);
+            osi_free(p_buf_drop);
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_sm_execute
+**
+** Description      State machine event handling function for AV
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_sm_execute(tBTA_AV_CB *p_cb, UINT16 event, tBTA_AV_DATA *p_data)
+{
+    tBTA_AV_ST_TBL      state_table;
+    UINT8               action;
+
+#if (defined(BTA_AV_DEBUG) && BTA_AV_DEBUG == TRUE)
+    APPL_TRACE_EVENT("AV event=0x%x(%s) state=%d(%s)",
+        event, bta_av_evt_code(event), p_cb->state, bta_av_st_code(p_cb->state));
+#else
+    APPL_TRACE_EVENT("AV event=0x%x state=%d", event, p_cb->state);
+#endif
+
+    /* look up the state table for the current state */
+    state_table = bta_av_st_tbl[p_cb->state];
+
+    event &= 0x00FF;
+
+    /* set next state */
+    p_cb->state = state_table[event][BTA_AV_NEXT_STATE];
+    APPL_TRACE_EVENT("next state=%d", p_cb->state);
+
+    /* execute action functions */
+    if ((action = state_table[event][BTA_AV_ACTION_COL]) != BTA_AV_IGNORE)
+    {
+        (*bta_av_action[action])(p_cb, p_data);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_hdl_event
+**
+** Description      Advanced audio/video main event handling function.
+**
+**
+** Returns          BOOLEAN
+**
+*******************************************************************************/
+BOOLEAN bta_av_hdl_event(BT_HDR *p_msg)
+{
+    UINT16 event = p_msg->event;
+    UINT16 first_event = BTA_AV_FIRST_NSM_EVT;
+
+    if (event > BTA_AV_LAST_EVT)
+    {
+        return TRUE; /* to free p_msg */
+    }
+
+    if(event >= first_event)
+    {
+#if (defined(BTA_AV_DEBUG) && BTA_AV_DEBUG == TRUE)
+        APPL_TRACE_VERBOSE("AV nsm event=0x%x(%s)", event, bta_av_evt_code(event));
+#else
+        APPL_TRACE_VERBOSE("AV nsm event=0x%x", event);
+#endif
+        /* non state machine events */
+        (*bta_av_nsm_act[event - BTA_AV_FIRST_NSM_EVT]) ((tBTA_AV_DATA *) p_msg);
+    }
+    else if (event >= BTA_AV_FIRST_SM_EVT && event <= BTA_AV_LAST_SM_EVT)
+    {
+#if (defined(BTA_AV_DEBUG) && BTA_AV_DEBUG == TRUE)
+        APPL_TRACE_VERBOSE("AV sm event=0x%x(%s)", event, bta_av_evt_code(event));
+#else
+        APPL_TRACE_VERBOSE("AV sm event=0x%x", event);
+#endif
+        /* state machine events */
+        bta_av_sm_execute(&bta_av_cb, p_msg->event, (tBTA_AV_DATA *) p_msg);
+    }
+    else
+    {
+        APPL_TRACE_VERBOSE("handle=0x%x", p_msg->layer_specific);
+        /* stream state machine events */
+        bta_av_ssm_execute( bta_av_hndl_to_scb(p_msg->layer_specific),
+                                p_msg->event, (tBTA_AV_DATA *) p_msg);
+    }
+    return TRUE;
+}
+
+/*****************************************************************************
+**  Debug Functions
+*****************************************************************************/
+#if (defined(BTA_AV_DEBUG) && BTA_AV_DEBUG == TRUE)
+/*******************************************************************************
+**
+** Function         bta_av_st_code
+**
+** Description
+**
+** Returns          char *
+**
+*******************************************************************************/
+static char *bta_av_st_code(UINT8 state)
+{
+    switch(state)
+    {
+    case BTA_AV_INIT_ST: return "INIT";
+    case BTA_AV_OPEN_ST: return "OPEN";
+    default:             return "unknown";
+    }
+}
+/*******************************************************************************
+**
+** Function         bta_av_evt_code
+**
+** Description
+**
+** Returns          char *
+**
+*******************************************************************************/
+char *bta_av_evt_code(UINT16 evt_code)
+{
+    switch(evt_code)
+    {
+    case BTA_AV_API_DISABLE_EVT: return "API_DISABLE";
+    case BTA_AV_API_REMOTE_CMD_EVT: return "API_REMOTE_CMD";
+    case BTA_AV_API_VENDOR_CMD_EVT: return "API_VENDOR_CMD";
+    case BTA_AV_API_VENDOR_RSP_EVT: return "API_VENDOR_RSP";
+    case BTA_AV_API_META_RSP_EVT: return "API_META_RSP_EVT";
+    case BTA_AV_API_RC_CLOSE_EVT: return "API_RC_CLOSE";
+    case BTA_AV_AVRC_OPEN_EVT: return "AVRC_OPEN";
+    case BTA_AV_AVRC_MSG_EVT: return "AVRC_MSG";
+    case BTA_AV_AVRC_NONE_EVT: return "AVRC_NONE";
+
+    case BTA_AV_API_OPEN_EVT: return "API_OPEN";
+    case BTA_AV_API_CLOSE_EVT: return "API_CLOSE";
+    case BTA_AV_AP_START_EVT: return "AP_START";
+    case BTA_AV_AP_STOP_EVT: return "AP_STOP";
+    case BTA_AV_API_RECONFIG_EVT: return "API_RECONFIG";
+    case BTA_AV_API_PROTECT_REQ_EVT: return "API_PROTECT_REQ";
+    case BTA_AV_API_PROTECT_RSP_EVT: return "API_PROTECT_RSP";
+    case BTA_AV_API_RC_OPEN_EVT: return "API_RC_OPEN";
+    case BTA_AV_SRC_DATA_READY_EVT: return "SRC_DATA_READY";
+    case BTA_AV_CI_SETCONFIG_OK_EVT: return "CI_SETCONFIG_OK";
+    case BTA_AV_CI_SETCONFIG_FAIL_EVT: return "CI_SETCONFIG_FAIL";
+    case BTA_AV_SDP_DISC_OK_EVT: return "SDP_DISC_OK";
+    case BTA_AV_SDP_DISC_FAIL_EVT: return "SDP_DISC_FAIL";
+    case BTA_AV_STR_DISC_OK_EVT: return "STR_DISC_OK";
+    case BTA_AV_STR_DISC_FAIL_EVT: return "STR_DISC_FAIL";
+    case BTA_AV_STR_GETCAP_OK_EVT: return "STR_GETCAP_OK";
+    case BTA_AV_STR_GETCAP_FAIL_EVT: return "STR_GETCAP_FAIL";
+    case BTA_AV_STR_OPEN_OK_EVT: return "STR_OPEN_OK";
+    case BTA_AV_STR_OPEN_FAIL_EVT: return "STR_OPEN_FAIL";
+    case BTA_AV_STR_START_OK_EVT: return "STR_START_OK";
+    case BTA_AV_STR_START_FAIL_EVT: return "STR_START_FAIL";
+    case BTA_AV_STR_CLOSE_EVT: return "STR_CLOSE";
+    case BTA_AV_STR_CONFIG_IND_EVT: return "STR_CONFIG_IND";
+    case BTA_AV_STR_SECURITY_IND_EVT: return "STR_SECURITY_IND";
+    case BTA_AV_STR_SECURITY_CFM_EVT: return "STR_SECURITY_CFM";
+    case BTA_AV_STR_WRITE_CFM_EVT: return "STR_WRITE_CFM";
+    case BTA_AV_STR_SUSPEND_CFM_EVT: return "STR_SUSPEND_CFM";
+    case BTA_AV_STR_RECONFIG_CFM_EVT: return "STR_RECONFIG_CFM";
+    case BTA_AV_AVRC_TIMER_EVT: return "AVRC_TIMER";
+    case BTA_AV_AVDT_CONNECT_EVT: return "AVDT_CONNECT";
+    case BTA_AV_AVDT_DISCONNECT_EVT: return "AVDT_DISCONNECT";
+    case BTA_AV_ROLE_CHANGE_EVT: return "ROLE_CHANGE";
+    case BTA_AV_AVDT_DELAY_RPT_EVT: return "AVDT_DELAY_RPT";
+    case BTA_AV_ACP_CONNECT_EVT: return "ACP_CONNECT";
+
+    case BTA_AV_API_ENABLE_EVT: return "API_ENABLE";
+    case BTA_AV_API_REGISTER_EVT: return "API_REG";
+    case BTA_AV_API_DEREGISTER_EVT: return "API_DEREG";
+    case BTA_AV_API_DISCONNECT_EVT: return "API_DISCNT";
+    case BTA_AV_CI_SRC_DATA_READY_EVT: return "CI_DATA_READY";
+    case BTA_AV_SIG_CHG_EVT: return "SIG_CHG";
+    case BTA_AV_SIGNALLING_TIMER_EVT: return "SIGNALLING_TIMER";
+    case BTA_AV_SDP_AVRC_DISC_EVT: return "SDP_AVRC_DISC";
+    case BTA_AV_AVRC_CLOSE_EVT: return "AVRC_CLOSE";
+    case BTA_AV_CONN_CHG_EVT: return "CONN_CHG";
+    case BTA_AV_DEREG_COMP_EVT: return "DEREG_COMP";
+#if (BTA_AV_SINK_INCLUDED == TRUE)
+    case BTA_AV_API_SINK_ENABLE_EVT: return "SINK_ENABLE";
+#endif
+#if (AVDT_REPORTING == TRUE)
+    case BTA_AV_AVDT_RPT_CONN_EVT: return "RPT_CONN";
+#endif
+    case BTA_AV_API_START_EVT: return "API_START";
+    case BTA_AV_API_STOP_EVT: return "API_STOP";
+    default:             return "unknown";
+    }
+}
+#endif
+
+#endif /* BTA_AV_INCLUDED */
diff --git a/rtkbt/code/bt/bta/av/bta_av_sbc.c b/rtkbt/code/bt/bta/av/bta_av_sbc.c
new file mode 100755
index 0000000..dec24df
--- /dev/null
+++ b/rtkbt/code/bt/bta/av/bta_av_sbc.c
@@ -0,0 +1,665 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2004-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This module contains utility functions for dealing with SBC data frames
+ *  and codec capabilities.
+ *
+ ******************************************************************************/
+
+#include "a2d_api.h"
+#include "a2d_sbc.h"
+#include "bta_av_sbc.h"
+#include "utl.h"
+
+typedef int (tBTA_AV_SBC_ACT)(void *p_src, void *p_dst,
+                               UINT32 src_samples, UINT32 dst_samples,
+                               UINT32 *p_ret);
+
+typedef struct
+{
+    INT32               cur_pos;    /* current position */
+    UINT32              src_sps;    /* samples per second (source audio data) */
+    UINT32              dst_sps;    /* samples per second (converted audio data) */
+    tBTA_AV_SBC_ACT     *p_act;     /* the action function to do the conversion */
+    UINT16              bits;       /* number of bits per pcm sample */
+    UINT16              n_channels; /* number of channels (i.e. mono(1), stereo(2)...) */
+    INT16               worker1;
+    INT16               worker2;
+    UINT8               div;
+} tBTA_AV_SBC_UPS_CB;
+
+tBTA_AV_SBC_UPS_CB bta_av_sbc_ups_cb;
+
+/*******************************************************************************
+**
+** Function         bta_av_sbc_init_up_sample
+**
+** Description      initialize the up sample
+**
+**                  src_sps: samples per second (source audio data)
+**                  dst_sps: samples per second (converted audio data)
+**                  bits: number of bits per pcm sample
+**                  n_channels: number of channels (i.e. mono(1), stereo(2)...)
+**
+** Returns          none
+**
+*******************************************************************************/
+void bta_av_sbc_init_up_sample (UINT32 src_sps, UINT32 dst_sps, UINT16 bits, UINT16 n_channels)
+{
+    bta_av_sbc_ups_cb.cur_pos   = -1;
+    bta_av_sbc_ups_cb.src_sps   = src_sps;
+    bta_av_sbc_ups_cb.dst_sps   = dst_sps;
+    bta_av_sbc_ups_cb.bits      = bits;
+    bta_av_sbc_ups_cb.n_channels= n_channels;
+
+    if(n_channels == 1)
+    {
+        /* mono */
+        if(bits == 8)
+        {
+            bta_av_sbc_ups_cb.p_act = bta_av_sbc_up_sample_8m;
+            bta_av_sbc_ups_cb.div   = 1;
+        }
+        else
+        {
+            bta_av_sbc_ups_cb.p_act = bta_av_sbc_up_sample_16m;
+            bta_av_sbc_ups_cb.div   = 2;
+        }
+    }
+    else
+    {
+        /* stereo */
+        if(bits == 8)
+        {
+            bta_av_sbc_ups_cb.p_act = bta_av_sbc_up_sample_8s;
+            bta_av_sbc_ups_cb.div   = 2;
+        }
+        else
+        {
+            bta_av_sbc_ups_cb.p_act = bta_av_sbc_up_sample_16s;
+            bta_av_sbc_ups_cb.div   = 4;
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_sbc_up_sample
+**
+** Description      Given the source (p_src) audio data and
+**                  source speed (src_sps, samples per second),
+**                  This function converts it to audio data in the desired format
+**
+**                  p_src: the data buffer that holds the source audio data
+**                  p_dst: the data buffer to hold the converted audio data
+**                  src_samples: The number of source samples (number of bytes)
+**                  dst_samples: The size of p_dst (number of bytes)
+**
+** Note:            An AE reported an issue with this function.
+**                  When called with bta_av_sbc_up_sample(src, uint8_array_dst..)
+**                  the byte before uint8_array_dst may get overwritten.
+**                  Using uint16_array_dst avoids the problem.
+**                  This issue is related to endian-ness and is hard to resolve
+**                  in a generic manner.
+** **************** Please use uint16 array as dst.
+**
+** Returns          The number of bytes used in p_dst
+**                  The number of bytes used in p_src (in *p_ret)
+**
+*******************************************************************************/
+int bta_av_sbc_up_sample (void *p_src, void *p_dst,
+                         UINT32 src_samples, UINT32 dst_samples,
+                         UINT32 *p_ret)
+{
+    UINT32 src;
+    UINT32 dst;
+
+    if(bta_av_sbc_ups_cb.p_act)
+    {
+        src = src_samples/bta_av_sbc_ups_cb.div;
+        dst = dst_samples/bta_av_sbc_ups_cb.div;
+        return (*bta_av_sbc_ups_cb.p_act)(p_src, p_dst, src, dst, p_ret);
+    }
+    else
+    {
+        *p_ret = 0;
+        return 0;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_sbc_up_sample_16s (16bits-stereo)
+**
+** Description      Given the source (p_src) audio data and
+**                  source speed (src_sps, samples per second),
+**                  This function converts it to audio data in the desired format
+**
+**                  p_src: the data buffer that holds the source audio data
+**                  p_dst: the data buffer to hold the converted audio data
+**                  src_samples: The number of source samples (in uint of 4 bytes)
+**                  dst_samples: The size of p_dst (in uint of 4 bytes)
+**
+** Returns          The number of bytes used in p_dst
+**                  The number of bytes used in p_src (in *p_ret)
+**
+*******************************************************************************/
+int bta_av_sbc_up_sample_16s (void *p_src, void *p_dst,
+                         UINT32 src_samples, UINT32 dst_samples,
+                         UINT32 *p_ret)
+{
+    INT16   *p_src_tmp = (INT16 *)p_src;
+    INT16   *p_dst_tmp = (INT16 *)p_dst;
+    INT16   *p_worker1 = &bta_av_sbc_ups_cb.worker1;
+    INT16   *p_worker2 = &bta_av_sbc_ups_cb.worker2;
+    UINT32  src_sps = bta_av_sbc_ups_cb.src_sps;
+    UINT32  dst_sps = bta_av_sbc_ups_cb.dst_sps;
+
+    while (bta_av_sbc_ups_cb.cur_pos > 0 && dst_samples)
+    {
+        *p_dst_tmp++    = *p_worker1;
+        *p_dst_tmp++    = *p_worker2;
+
+        bta_av_sbc_ups_cb.cur_pos -= src_sps;
+        dst_samples--;
+    }
+
+    bta_av_sbc_ups_cb.cur_pos = dst_sps;
+
+    while (src_samples-- && dst_samples)
+    {
+        *p_worker1 = *p_src_tmp++;
+        *p_worker2 = *p_src_tmp++;
+
+        do
+        {
+            *p_dst_tmp++    = *p_worker1;
+            *p_dst_tmp++    = *p_worker2;
+
+            bta_av_sbc_ups_cb.cur_pos -= src_sps;
+            dst_samples--;
+        } while (bta_av_sbc_ups_cb.cur_pos > 0 && dst_samples);
+
+        bta_av_sbc_ups_cb.cur_pos += dst_sps;
+    }
+
+    if (bta_av_sbc_ups_cb.cur_pos == (INT32)dst_sps)
+        bta_av_sbc_ups_cb.cur_pos = 0;
+
+    *p_ret = ((char *)p_src_tmp - (char *)p_src);
+    return ((char *)p_dst_tmp - (char *)p_dst);
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_sbc_up_sample_16m (16bits-mono)
+**
+** Description      Given the source (p_src) audio data and
+**                  source speed (src_sps, samples per second),
+**                  This function converts it to audio data in the desired format
+**
+**                  p_src: the data buffer that holds the source audio data
+**                  p_dst: the data buffer to hold the converted audio data
+**                  src_samples: The number of source samples (in uint of 2 bytes)
+**                  dst_samples: The size of p_dst (in uint of 2 bytes)
+**
+** Returns          The number of bytes used in p_dst
+**                  The number of bytes used in p_src (in *p_ret)
+**
+*******************************************************************************/
+int bta_av_sbc_up_sample_16m (void *p_src, void *p_dst,
+                              UINT32 src_samples, UINT32 dst_samples,
+                              UINT32 *p_ret)
+{
+    INT16   *p_src_tmp = (INT16 *)p_src;
+    INT16   *p_dst_tmp = (INT16 *)p_dst;
+    INT16   *p_worker = &bta_av_sbc_ups_cb.worker1;
+    UINT32  src_sps = bta_av_sbc_ups_cb.src_sps;
+    UINT32  dst_sps = bta_av_sbc_ups_cb.dst_sps;
+
+    while (bta_av_sbc_ups_cb.cur_pos > 0 && dst_samples)
+    {
+        *p_dst_tmp++ = *p_worker;
+        *p_dst_tmp++ = *p_worker;
+
+        bta_av_sbc_ups_cb.cur_pos -= src_sps;
+        dst_samples--;
+        dst_samples--;
+    }
+
+
+    bta_av_sbc_ups_cb.cur_pos = dst_sps;
+
+    while (src_samples-- && dst_samples)
+    {
+        *p_worker = *p_src_tmp++;
+
+        do
+        {
+            *p_dst_tmp++ = *p_worker;
+            *p_dst_tmp++ = *p_worker;
+
+            bta_av_sbc_ups_cb.cur_pos -= src_sps;
+            dst_samples--;
+            dst_samples--;
+
+        } while (bta_av_sbc_ups_cb.cur_pos > 0 && dst_samples);
+
+        bta_av_sbc_ups_cb.cur_pos += dst_sps;
+    }
+
+    if (bta_av_sbc_ups_cb.cur_pos == (INT32)dst_sps)
+        bta_av_sbc_ups_cb.cur_pos = 0;
+
+    *p_ret = ((char *)p_src_tmp - (char *)p_src);
+    return ((char *)p_dst_tmp - (char *)p_dst);
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_sbc_up_sample_8s (8bits-stereo)
+**
+** Description      Given the source (p_src) audio data and
+**                  source speed (src_sps, samples per second),
+**                  This function converts it to audio data in the desired format
+**
+**                  p_src: the data buffer that holds the source audio data
+**                  p_dst: the data buffer to hold the converted audio data
+**                  src_samples: The number of source samples (in uint of 2 bytes)
+**                  dst_samples: The size of p_dst (in uint of 2 bytes)
+**
+** Returns          The number of bytes used in p_dst
+**                  The number of bytes used in p_src (in *p_ret)
+**
+*******************************************************************************/
+int bta_av_sbc_up_sample_8s (void *p_src, void *p_dst,
+                             UINT32 src_samples, UINT32 dst_samples,
+                             UINT32 *p_ret)
+{
+    UINT8   *p_src_tmp = (UINT8 *)p_src;
+    INT16   *p_dst_tmp = (INT16 *)p_dst;
+    INT16   *p_worker1 = &bta_av_sbc_ups_cb.worker1;
+    INT16   *p_worker2 = &bta_av_sbc_ups_cb.worker2;
+    UINT32  src_sps = bta_av_sbc_ups_cb.src_sps;
+    UINT32  dst_sps = bta_av_sbc_ups_cb.dst_sps;
+
+    while (bta_av_sbc_ups_cb.cur_pos > 0 && dst_samples)
+    {
+        *p_dst_tmp++    = *p_worker1;
+        *p_dst_tmp++    = *p_worker2;
+
+        bta_av_sbc_ups_cb.cur_pos -= src_sps;
+        dst_samples--;
+        dst_samples--;
+    }
+
+    bta_av_sbc_ups_cb.cur_pos = dst_sps;
+
+    while (src_samples -- && dst_samples)
+    {
+        *p_worker1 = *(UINT8 *)p_src_tmp++;
+        *p_worker1 -= 0x80;
+        *p_worker1 <<= 8;
+        *p_worker2 = *(UINT8 *)p_src_tmp++;
+        *p_worker2 -= 0x80;
+        *p_worker2 <<= 8;
+
+        do
+        {
+            *p_dst_tmp++    = *p_worker1;
+            *p_dst_tmp++    = *p_worker2;
+
+            bta_av_sbc_ups_cb.cur_pos -= src_sps;
+            dst_samples--;
+            dst_samples--;
+        } while (bta_av_sbc_ups_cb.cur_pos > 0 && dst_samples);
+
+        bta_av_sbc_ups_cb.cur_pos += dst_sps;
+    }
+
+    if (bta_av_sbc_ups_cb.cur_pos == (INT32)dst_sps)
+        bta_av_sbc_ups_cb.cur_pos = 0;
+
+    *p_ret = ((char *)p_src_tmp - (char *)p_src);
+    return ((char *)p_dst_tmp - (char *)p_dst);
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_sbc_up_sample_8m (8bits-mono)
+**
+** Description      Given the source (p_src) audio data and
+**                  source speed (src_sps, samples per second),
+**                  This function converts it to audio data in the desired format
+**
+**                  p_src: the data buffer that holds the source audio data
+**                  p_dst: the data buffer to hold the converted audio data
+**                  src_samples: The number of source samples (number of bytes)
+**                  dst_samples: The size of p_dst (number of bytes)
+**
+** Returns          The number of bytes used in p_dst
+**                  The number of bytes used in p_src (in *p_ret)
+**
+*******************************************************************************/
+int bta_av_sbc_up_sample_8m (void *p_src, void *p_dst,
+                             UINT32 src_samples, UINT32 dst_samples,
+                             UINT32 *p_ret)
+{
+    UINT8   *p_src_tmp = (UINT8 *)p_src;
+    INT16   *p_dst_tmp = (INT16 *)p_dst;
+    INT16   *p_worker = &bta_av_sbc_ups_cb.worker1;
+    UINT32  src_sps = bta_av_sbc_ups_cb.src_sps;
+    UINT32  dst_sps = bta_av_sbc_ups_cb.dst_sps;
+
+    while (bta_av_sbc_ups_cb.cur_pos > 0 && dst_samples)
+    {
+        *p_dst_tmp++ = *p_worker;
+        *p_dst_tmp++ = *p_worker;
+
+        bta_av_sbc_ups_cb.cur_pos -= src_sps;
+        dst_samples -= 4;
+    }
+
+
+    bta_av_sbc_ups_cb.cur_pos = dst_sps;
+
+    while (src_samples-- && dst_samples)
+    {
+        *p_worker = *(UINT8 *)p_src_tmp++;
+        *p_worker -= 0x80;
+        *p_worker <<= 8;
+
+        do
+        {
+            *p_dst_tmp++ = *p_worker;
+            *p_dst_tmp++ = *p_worker;
+
+            bta_av_sbc_ups_cb.cur_pos -= src_sps;
+            dst_samples -= 4;
+
+        } while (bta_av_sbc_ups_cb.cur_pos > 0 && dst_samples);
+
+        bta_av_sbc_ups_cb.cur_pos += dst_sps;
+    }
+
+    if (bta_av_sbc_ups_cb.cur_pos == (INT32)dst_sps)
+        bta_av_sbc_ups_cb.cur_pos = 0;
+
+    *p_ret = ((char *)p_src_tmp - (char *)p_src);
+    return ((char *)p_dst_tmp - (char *)p_dst);
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_sbc_cfg_for_cap
+**
+** Description      Determine the preferred SBC codec configuration for the
+**                  given codec capabilities.  The function is passed the
+**                  preferred codec configuration and the peer codec
+**                  capabilities for the stream.  The function attempts to
+**                  match the preferred capabilities with the configuration
+**                  as best it can.  The resulting codec configuration is
+**                  returned in the same memory used for the capabilities.
+**
+** Returns          0 if ok, nonzero if error.
+**                  Codec configuration in p_cap.
+**
+*******************************************************************************/
+UINT8 bta_av_sbc_cfg_for_cap(UINT8 *p_peer, tA2D_SBC_CIE *p_cap, tA2D_SBC_CIE *p_pref)
+{
+    UINT8           status = A2D_SUCCESS;
+    tA2D_SBC_CIE    peer_cie;
+    UNUSED(p_cap);
+
+    /* parse peer capabilities */
+    if ((status = A2D_ParsSbcInfo(&peer_cie, p_peer, TRUE)) != 0)
+    {
+        return status;
+    }
+
+    /* Check if the peer supports our channel mode */
+    if (peer_cie.ch_mode & p_pref->ch_mode)
+    {
+        peer_cie.ch_mode = p_pref->ch_mode;
+    }
+    else
+    {
+        APPL_TRACE_ERROR("bta_av_sbc_cfg_for_cap: ch_mode(0x%02X) not supported", p_pref->ch_mode);
+        return A2D_FAIL;
+    }
+
+    /* Check if the peer supports our sampling freq */
+    if (peer_cie.samp_freq & p_pref->samp_freq)
+    {
+        peer_cie.samp_freq = p_pref->samp_freq;
+    }
+    else
+    {
+        APPL_TRACE_ERROR("bta_av_sbc_cfg_for_cap: samp_freq(0x%02X) not supported", p_pref->samp_freq);
+        return A2D_FAIL;
+    }
+
+    /* Check if the peer supports our block len */
+    if (peer_cie.block_len & p_pref->block_len)
+    {
+        peer_cie.block_len = p_pref->block_len;
+    }
+    else
+    {
+        APPL_TRACE_ERROR("bta_av_sbc_cfg_for_cap: block_len(0x%02X) not supported", p_pref->block_len);
+        return A2D_FAIL;
+    }
+
+    /* Check if the peer supports our num subbands */
+    if (peer_cie.num_subbands & p_pref->num_subbands)
+    {
+        peer_cie.num_subbands = p_pref->num_subbands;
+    }
+    else
+    {
+        APPL_TRACE_ERROR("bta_av_sbc_cfg_for_cap: num_subbands(0x%02X) not supported", p_pref->num_subbands);
+        return A2D_FAIL;
+    }
+
+    /* Check if the peer supports our alloc method */
+    if (peer_cie.alloc_mthd & p_pref->alloc_mthd)
+    {
+        peer_cie.alloc_mthd = p_pref->alloc_mthd;
+    }
+    else
+    {
+        APPL_TRACE_ERROR("bta_av_sbc_cfg_for_cap: alloc_mthd(0x%02X) not supported", p_pref->alloc_mthd);
+        return A2D_FAIL;
+    }
+
+    /* max bitpool */
+    if (p_pref->max_bitpool != 0 && p_pref->max_bitpool < peer_cie.max_bitpool)
+    {
+        peer_cie.max_bitpool = p_pref->max_bitpool;
+    }
+
+    /* min bitpool */
+    if (p_pref->min_bitpool != 0 && p_pref->min_bitpool > peer_cie.min_bitpool)
+    {
+        peer_cie.min_bitpool = p_pref->min_bitpool;
+    }
+
+    if (status == A2D_SUCCESS)
+    {
+        /* build configuration */
+        A2D_BldSbcInfo(A2D_MEDIA_TYPE_AUDIO, &peer_cie, p_peer);
+    }
+    return status;
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_sbc_cfg_matches_cap
+**
+** Description      This function checks whether an SBC codec configuration
+**                  matched with capabilities. Here we check subset.
+**
+** Returns          0 if ok, nonzero if error.
+**
+*******************************************************************************/
+UINT8 bta_av_sbc_cfg_matches_cap(UINT8 *p_cfg, tA2D_SBC_CIE *p_cap)
+{
+    UINT8           status = 0;
+    tA2D_SBC_CIE    cfg_cie;
+
+    /* parse configuration */
+    if ((status = A2D_ParsSbcInfo(&cfg_cie, p_cfg, TRUE)) != 0)
+    {
+        APPL_TRACE_ERROR(" bta_av_sbc_cfg_matches_cap Parsing Failed %d", status);
+        return status;
+    }
+
+    /* verify that each parameter is in range */
+
+    APPL_TRACE_DEBUG(" FREQ peer: 0%x, capability  0%x", cfg_cie.samp_freq, p_cap->samp_freq);
+    APPL_TRACE_DEBUG(" CH_MODE peer: 0%x, capability  0%x", cfg_cie.ch_mode, p_cap->ch_mode);
+    APPL_TRACE_DEBUG(" BLOCK_LEN peer: 0%x, capability  0%x", cfg_cie.block_len, p_cap->block_len);
+    APPL_TRACE_DEBUG(" SUB_BAND peer: 0%x, capability  0%x", cfg_cie.num_subbands, p_cap->num_subbands);
+    APPL_TRACE_DEBUG(" ALLOC_MTHD peer: 0%x, capability  0%x", cfg_cie.alloc_mthd, p_cap->alloc_mthd);
+    APPL_TRACE_DEBUG(" MAX_BitPool peer: 0%x, capability  0%x", cfg_cie.max_bitpool, p_cap->max_bitpool);
+    APPL_TRACE_DEBUG(" Min_bitpool peer: 0%x, capability  0%x", cfg_cie.min_bitpool, p_cap->min_bitpool);
+
+    /* sampling frequency */
+    if ((cfg_cie.samp_freq & p_cap->samp_freq) == 0)
+    {
+        status = A2D_NS_SAMP_FREQ;
+    }
+    /* channel mode */
+    else if ((cfg_cie.ch_mode & p_cap->ch_mode) == 0)
+    {
+        status = A2D_NS_CH_MODE;
+    }
+    /* block length */
+    else if ((cfg_cie.block_len & p_cap->block_len) == 0)
+    {
+        status = A2D_BAD_BLOCK_LEN;
+    }
+    /* subbands */
+    else if ((cfg_cie.num_subbands & p_cap->num_subbands) == 0)
+    {
+        status = A2D_NS_SUBBANDS;
+    }
+    /* allocation method */
+    else if ((cfg_cie.alloc_mthd & p_cap->alloc_mthd) == 0)
+    {
+        status = A2D_NS_ALLOC_MTHD;
+    }
+    /* max bitpool */
+    else if (cfg_cie.max_bitpool > p_cap->max_bitpool)
+    {
+        status = A2D_NS_MAX_BITPOOL;
+    }
+    /* min bitpool */
+    else if (cfg_cie.min_bitpool < p_cap->min_bitpool)
+    {
+        status = A2D_NS_MIN_BITPOOL;
+    }
+
+    return status;
+}
+
+
+/*******************************************************************************
+**
+** Function         bta_av_sbc_cfg_in_cap
+**
+** Description      This function checks whether an SBC codec configuration
+**                  is allowable for the given codec capabilities.
+**
+** Returns          0 if ok, nonzero if error.
+**
+*******************************************************************************/
+UINT8 bta_av_sbc_cfg_in_cap(UINT8 *p_cfg, tA2D_SBC_CIE *p_cap)
+{
+    UINT8           status = 0;
+    tA2D_SBC_CIE    cfg_cie;
+
+    /* parse configuration */
+    if ((status = A2D_ParsSbcInfo(&cfg_cie, p_cfg, FALSE)) != 0)
+    {
+        return status;
+    }
+
+    /* verify that each parameter is in range */
+
+
+    /* sampling frequency */
+    if ((cfg_cie.samp_freq & p_cap->samp_freq) == 0)
+    {
+        status = A2D_NS_SAMP_FREQ;
+    }
+    /* channel mode */
+    else if ((cfg_cie.ch_mode & p_cap->ch_mode) == 0)
+    {
+        status = A2D_NS_CH_MODE;
+    }
+    /* block length */
+    else if ((cfg_cie.block_len & p_cap->block_len) == 0)
+    {
+        status = A2D_BAD_BLOCK_LEN;
+    }
+    /* subbands */
+    else if ((cfg_cie.num_subbands & p_cap->num_subbands) == 0)
+    {
+        status = A2D_NS_SUBBANDS;
+    }
+    /* allocation method */
+    else if ((cfg_cie.alloc_mthd & p_cap->alloc_mthd) == 0)
+    {
+        status = A2D_NS_ALLOC_MTHD;
+    }
+    /* max bitpool */
+    else if (cfg_cie.max_bitpool > p_cap->max_bitpool)
+    {
+        status = A2D_NS_MAX_BITPOOL;
+    }
+    /* min bitpool */
+    else if (cfg_cie.min_bitpool < p_cap->min_bitpool)
+    {
+        status = A2D_NS_MIN_BITPOOL;
+    }
+
+    return status;
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_sbc_bld_hdr
+**
+** Description      This function builds the packet header for MPF1.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_sbc_bld_hdr(BT_HDR *p_buf, UINT16 fr_per_pkt)
+{
+    UINT8   *p;
+
+    p_buf->offset -= BTA_AV_SBC_HDR_SIZE;
+    p = (UINT8 *) (p_buf + 1) + p_buf->offset;
+    p_buf->len += BTA_AV_SBC_HDR_SIZE;
+    A2D_BldSbcMplHdr(p, FALSE, FALSE, FALSE, (UINT8) fr_per_pkt);
+}
+
diff --git a/rtkbt/code/bt/bta/av/bta_av_ssm.c b/rtkbt/code/bt/bta/av/bta_av_ssm.c
new file mode 100755
index 0000000..6ad8bcd
--- /dev/null
+++ b/rtkbt/code/bt/bta/av/bta_av_ssm.c
@@ -0,0 +1,613 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2004-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the stream state machine for the BTA advanced audio/video.
+ *
+ ******************************************************************************/
+
+#include "bt_target.h"
+#if defined(BTA_AV_INCLUDED) && (BTA_AV_INCLUDED == TRUE)
+
+#include <string.h>
+#include "bta_av_co.h"
+#include "bta_av_int.h"
+
+/*****************************************************************************
+** Constants and types
+*****************************************************************************/
+
+/* state machine states */
+enum
+{
+    BTA_AV_INIT_SST,
+    BTA_AV_INCOMING_SST,
+    BTA_AV_OPENING_SST,
+    BTA_AV_OPEN_SST,
+    BTA_AV_RCFG_SST,
+    BTA_AV_CLOSING_SST
+};
+
+
+/* state machine action enumeration list */
+enum
+{
+    BTA_AV_DO_DISC,
+    BTA_AV_CLEANUP,
+    BTA_AV_FREE_SDB,
+    BTA_AV_CONFIG_IND,
+    BTA_AV_DISCONNECT_REQ,
+    BTA_AV_SECURITY_REQ,
+    BTA_AV_SECURITY_RSP,
+    BTA_AV_SETCONFIG_RSP,
+    BTA_AV_ST_RC_TIMER,
+    BTA_AV_STR_OPENED,
+    BTA_AV_SECURITY_IND,
+    BTA_AV_SECURITY_CFM,
+    BTA_AV_DO_CLOSE,
+    BTA_AV_CONNECT_REQ,
+    BTA_AV_SDP_FAILED,
+    BTA_AV_DISC_RESULTS,
+    BTA_AV_DISC_RES_AS_ACP,
+    BTA_AV_OPEN_FAILED,
+    BTA_AV_GETCAP_RESULTS,
+    BTA_AV_SETCONFIG_REJ,
+    BTA_AV_DISCOVER_REQ,
+    BTA_AV_CONN_FAILED,
+    BTA_AV_DO_START,
+    BTA_AV_STR_STOPPED,
+    BTA_AV_RECONFIG,
+    BTA_AV_DATA_PATH,
+    BTA_AV_START_OK,
+    BTA_AV_START_FAILED,
+    BTA_AV_STR_CLOSED,
+    BTA_AV_CLR_CONG,
+    BTA_AV_SUSPEND_CFM,
+    BTA_AV_RCFG_STR_OK,
+    BTA_AV_RCFG_FAILED,
+    BTA_AV_RCFG_CONNECT,
+    BTA_AV_RCFG_DISCNTD,
+    BTA_AV_SUSPEND_CONT,
+    BTA_AV_RCFG_CFM,
+    BTA_AV_RCFG_OPEN,
+    BTA_AV_SECURITY_REJ,
+    BTA_AV_OPEN_RC,
+    BTA_AV_CHK_2ND_START,
+    BTA_AV_SAVE_CAPS,
+    BTA_AV_SET_USE_RC,
+    BTA_AV_CCO_CLOSE,
+    BTA_AV_SWITCH_ROLE,
+    BTA_AV_ROLE_RES,
+    BTA_AV_DELAY_CO,
+    BTA_AV_OPEN_AT_INC,
+    BTA_AV_OFFLOAD_REQ,
+    BTA_AV_OFFLOAD_RSP,
+    BTA_AV_NUM_SACTIONS
+};
+
+#define BTA_AV_SIGNORE       BTA_AV_NUM_SACTIONS
+
+
+/* state table information */
+/* #define BTA_AV_SACTION_COL           0       position of actions */
+#define BTA_AV_SACTIONS              2       /* number of actions */
+#define BTA_AV_SNEXT_STATE           2       /* position of next state */
+#define BTA_AV_NUM_COLS              3       /* number of columns in state tables */
+
+/* state table for init state */
+static const UINT8 bta_av_sst_init[][BTA_AV_NUM_COLS] =
+{
+/* Event                     Action 1               Action 2               Next state */
+/* AP_OPEN_EVT */           {BTA_AV_DO_DISC,        BTA_AV_SIGNORE,        BTA_AV_OPENING_SST },
+/* AP_CLOSE_EVT */          {BTA_AV_CLEANUP,        BTA_AV_SIGNORE,        BTA_AV_INIT_SST },
+/* AP_START_EVT */          {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_INIT_SST },
+/* AP_STOP_EVT */           {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_INIT_SST },
+/* API_RECONFIG_EVT */      {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_INIT_SST },
+/* API_PROTECT_REQ_EVT */   {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_INIT_SST },
+/* API_PROTECT_RSP_EVT */   {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_INIT_SST },
+/* API_RC_OPEN_EVT  */      {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_INIT_SST },
+/* SRC_DATA_READY_EVT */    {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_INIT_SST },
+/* CI_SETCONFIG_OK_EVT */   {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_INIT_SST },
+/* CI_SETCONFIG_FAIL_EVT */ {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_INIT_SST },
+/* SDP_DISC_OK_EVT */       {BTA_AV_FREE_SDB,       BTA_AV_SIGNORE,        BTA_AV_INIT_SST },
+/* SDP_DISC_FAIL_EVT */     {BTA_AV_FREE_SDB,       BTA_AV_SIGNORE,        BTA_AV_INIT_SST },
+/* STR_DISC_OK_EVT */       {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_INIT_SST },
+/* STR_DISC_FAIL_EVT */     {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_INIT_SST },
+/* STR_GETCAP_OK_EVT */     {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_INIT_SST },
+/* STR_GETCAP_FAIL_EVT */   {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_INIT_SST },
+/* STR_OPEN_OK_EVT */       {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_INIT_SST },
+/* STR_OPEN_FAIL_EVT */     {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_INIT_SST },
+/* STR_START_OK_EVT */      {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_INIT_SST },
+/* STR_START_FAIL_EVT */    {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_INIT_SST },
+/* STR_CLOSE_EVT */         {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_INIT_SST },
+/* STR_CONFIG_IND_EVT */    {BTA_AV_SETCONFIG_REJ,  BTA_AV_SIGNORE,        BTA_AV_INIT_SST },
+/* STR_SECURITY_IND_EVT */  {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_INIT_SST },
+/* STR_SECURITY_CFM_EVT */  {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_INIT_SST },
+/* STR_WRITE_CFM_EVT */     {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_INIT_SST },
+/* STR_SUSPEND_CFM_EVT */   {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_INIT_SST },
+/* STR_RECONFIG_CFM_EVT */  {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_INIT_SST },
+/* AVRC_TIMER_EVT */        {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_INIT_SST },
+/* AVDT_CONNECT_EVT */      {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_INIT_SST },
+/* AVDT_DISCONNECT_EVT */   {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_INIT_SST },
+/* ROLE_CHANGE_EVT*/        {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_INIT_SST },
+/* AVDT_DELAY_RPT_EVT */    {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_INIT_SST },
+/* ACP_CONNECT_EVT */       {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_INCOMING_SST },
+/* API_OFFLOAD_START_EVT */{BTA_AV_OFFLOAD_REQ,    BTA_AV_SIGNORE,        BTA_AV_INIT_SST },
+/* API_OFFLOAD_START_RSP_EVT */{BTA_AV_OFFLOAD_RSP,    BTA_AV_SIGNORE,        BTA_AV_INIT_SST }
+};
+
+/* state table for incoming state */
+static const UINT8 bta_av_sst_incoming[][BTA_AV_NUM_COLS] =
+{
+/* Event                     Action 1               Action 2               Next state */
+/* AP_OPEN_EVT */           {BTA_AV_OPEN_AT_INC,    BTA_AV_SIGNORE,        BTA_AV_INCOMING_SST },
+/* AP_CLOSE_EVT */          {BTA_AV_CCO_CLOSE,      BTA_AV_DISCONNECT_REQ, BTA_AV_CLOSING_SST },
+/* AP_START_EVT */          {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_INCOMING_SST },
+/* AP_STOP_EVT */           {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_INCOMING_SST },
+/* API_RECONFIG_EVT */      {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_INCOMING_SST },
+/* API_PROTECT_REQ_EVT */   {BTA_AV_SECURITY_REQ,   BTA_AV_SIGNORE,        BTA_AV_INCOMING_SST },
+/* API_PROTECT_RSP_EVT */   {BTA_AV_SECURITY_RSP,   BTA_AV_SIGNORE,        BTA_AV_INCOMING_SST },
+/* API_RC_OPEN_EVT  */      {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_INCOMING_SST },
+/* SRC_DATA_READY_EVT */    {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_INCOMING_SST },
+/* CI_SETCONFIG_OK_EVT */   {BTA_AV_SETCONFIG_RSP,  BTA_AV_ST_RC_TIMER,    BTA_AV_INCOMING_SST },
+/* CI_SETCONFIG_FAIL_EVT */ {BTA_AV_SETCONFIG_REJ,  BTA_AV_CLEANUP,        BTA_AV_INIT_SST },
+/* SDP_DISC_OK_EVT */       {BTA_AV_FREE_SDB,       BTA_AV_SIGNORE,        BTA_AV_INCOMING_SST },
+/* SDP_DISC_FAIL_EVT */     {BTA_AV_FREE_SDB,       BTA_AV_SIGNORE,        BTA_AV_INCOMING_SST },
+/* STR_DISC_OK_EVT */       {BTA_AV_DISC_RES_AS_ACP,BTA_AV_SIGNORE,        BTA_AV_INCOMING_SST },
+/* STR_DISC_FAIL_EVT */     {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_INCOMING_SST },
+/* STR_GETCAP_OK_EVT */     {BTA_AV_SAVE_CAPS,      BTA_AV_SIGNORE,        BTA_AV_INCOMING_SST },
+/* STR_GETCAP_FAIL_EVT */   {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_INCOMING_SST },
+/* STR_OPEN_OK_EVT */       {BTA_AV_STR_OPENED,     BTA_AV_SIGNORE,        BTA_AV_OPEN_SST },
+/* STR_OPEN_FAIL_EVT */     {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_INCOMING_SST },
+/* STR_START_OK_EVT */      {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_INCOMING_SST },
+/* STR_START_FAIL_EVT */    {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_INCOMING_SST },
+/* STR_CLOSE_EVT */         {BTA_AV_CCO_CLOSE,      BTA_AV_CLEANUP,        BTA_AV_INIT_SST },
+/* STR_CONFIG_IND_EVT */    {BTA_AV_CONFIG_IND,     BTA_AV_SIGNORE,        BTA_AV_INCOMING_SST },
+/* STR_SECURITY_IND_EVT */  {BTA_AV_SECURITY_IND,   BTA_AV_SIGNORE,        BTA_AV_INCOMING_SST },
+/* STR_SECURITY_CFM_EVT */  {BTA_AV_SECURITY_CFM,   BTA_AV_SIGNORE,        BTA_AV_INCOMING_SST },
+/* STR_WRITE_CFM_EVT */     {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_INCOMING_SST },
+/* STR_SUSPEND_CFM_EVT */   {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_INCOMING_SST },
+/* STR_RECONFIG_CFM_EVT */  {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_INCOMING_SST },
+/* AVRC_TIMER_EVT */        {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_INCOMING_SST },
+/* AVDT_CONNECT_EVT */      {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_INCOMING_SST },
+/* AVDT_DISCONNECT_EVT */   {BTA_AV_CCO_CLOSE,      BTA_AV_DISCONNECT_REQ, BTA_AV_CLOSING_SST },
+/* ROLE_CHANGE_EVT*/        {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_INCOMING_SST },
+/* AVDT_DELAY_RPT_EVT */    {BTA_AV_DELAY_CO,       BTA_AV_SIGNORE,        BTA_AV_INCOMING_SST },
+/* ACP_CONNECT_EVT */       {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_INCOMING_SST },
+/* API_OFFLOAD_START_EVT */{BTA_AV_OFFLOAD_REQ,    BTA_AV_SIGNORE,        BTA_AV_INCOMING_SST },
+/* API_OFFLOAD_START_RSP_EVT */{BTA_AV_OFFLOAD_RSP,    BTA_AV_SIGNORE,        BTA_AV_INCOMING_SST }
+};
+
+/* state table for opening state */
+static const UINT8 bta_av_sst_opening[][BTA_AV_NUM_COLS] =
+{
+/* Event                     Action 1               Action 2               Next state */
+/* AP_OPEN_EVT */           {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_OPENING_SST },
+/* AP_CLOSE_EVT */          {BTA_AV_DO_CLOSE,       BTA_AV_SIGNORE,        BTA_AV_CLOSING_SST },
+/* AP_START_EVT */          {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_OPENING_SST },
+/* AP_STOP_EVT */           {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_OPENING_SST },
+/* API_RECONFIG_EVT */      {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_OPENING_SST },
+/* API_PROTECT_REQ_EVT */   {BTA_AV_SECURITY_REQ,   BTA_AV_SIGNORE,        BTA_AV_OPENING_SST },
+/* API_PROTECT_RSP_EVT */   {BTA_AV_SECURITY_RSP,   BTA_AV_SIGNORE,        BTA_AV_OPENING_SST },
+/* API_RC_OPEN_EVT  */      {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_OPENING_SST },
+/* SRC_DATA_READY_EVT */    {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_OPENING_SST },
+/* CI_SETCONFIG_OK_EVT */   {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_OPENING_SST },
+/* CI_SETCONFIG_FAIL_EVT */ {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_OPENING_SST },
+/* SDP_DISC_OK_EVT */       {BTA_AV_CONNECT_REQ,    BTA_AV_SIGNORE,        BTA_AV_OPENING_SST },
+/* SDP_DISC_FAIL_EVT */     {BTA_AV_CONNECT_REQ,    BTA_AV_SIGNORE,        BTA_AV_OPENING_SST },
+/* STR_DISC_OK_EVT */       {BTA_AV_DISC_RESULTS,   BTA_AV_SIGNORE,        BTA_AV_OPENING_SST },
+/* STR_DISC_FAIL_EVT */     {BTA_AV_OPEN_FAILED,    BTA_AV_SIGNORE,        BTA_AV_CLOSING_SST },
+/* STR_GETCAP_OK_EVT */     {BTA_AV_GETCAP_RESULTS, BTA_AV_SIGNORE,        BTA_AV_OPENING_SST },
+/* STR_GETCAP_FAIL_EVT */   {BTA_AV_OPEN_FAILED,    BTA_AV_SIGNORE,        BTA_AV_CLOSING_SST },
+/* STR_OPEN_OK_EVT */       {BTA_AV_ST_RC_TIMER,    BTA_AV_STR_OPENED,     BTA_AV_OPEN_SST },
+/* STR_OPEN_FAIL_EVT */     {BTA_AV_OPEN_FAILED,    BTA_AV_SIGNORE,        BTA_AV_CLOSING_SST },
+/* STR_START_OK_EVT */      {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_OPENING_SST },
+/* STR_START_FAIL_EVT */    {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_OPENING_SST },
+/* STR_CLOSE_EVT */         {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_OPENING_SST },
+/* STR_CONFIG_IND_EVT */    {BTA_AV_CONFIG_IND,     BTA_AV_SIGNORE,        BTA_AV_INCOMING_SST },
+/* STR_SECURITY_IND_EVT */  {BTA_AV_SECURITY_IND,   BTA_AV_SIGNORE,        BTA_AV_OPENING_SST },
+/* STR_SECURITY_CFM_EVT */  {BTA_AV_SECURITY_CFM,   BTA_AV_SIGNORE,        BTA_AV_OPENING_SST },
+/* STR_WRITE_CFM_EVT */     {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_OPENING_SST },
+/* STR_SUSPEND_CFM_EVT */   {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_OPENING_SST },
+/* STR_RECONFIG_CFM_EVT */  {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_OPENING_SST },
+/* AVRC_TIMER_EVT */        {BTA_AV_SWITCH_ROLE,    BTA_AV_SIGNORE,        BTA_AV_OPENING_SST },
+/* AVDT_CONNECT_EVT */      {BTA_AV_DISCOVER_REQ,   BTA_AV_SIGNORE,        BTA_AV_OPENING_SST },
+/* AVDT_DISCONNECT_EVT */   {BTA_AV_CONN_FAILED,    BTA_AV_SIGNORE,        BTA_AV_INIT_SST },
+/* ROLE_CHANGE_EVT*/        {BTA_AV_ROLE_RES,       BTA_AV_SIGNORE,        BTA_AV_OPENING_SST },
+/* AVDT_DELAY_RPT_EVT */    {BTA_AV_DELAY_CO,       BTA_AV_SIGNORE,        BTA_AV_OPENING_SST },
+/* ACP_CONNECT_EVT */       {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_OPENING_SST },
+/* API_OFFLOAD_START_EVT */{BTA_AV_OFFLOAD_REQ,    BTA_AV_SIGNORE,        BTA_AV_OPENING_SST },
+/* API_OFFLOAD_START_RSP_EVT */{BTA_AV_OFFLOAD_RSP,    BTA_AV_SIGNORE,        BTA_AV_OPENING_SST }
+};
+
+/* state table for open state */
+static const UINT8 bta_av_sst_open[][BTA_AV_NUM_COLS] =
+{
+/* Event                     Action 1               Action 2               Next state */
+/* AP_OPEN_EVT */           {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_OPEN_SST },
+/* AP_CLOSE_EVT */          {BTA_AV_DO_CLOSE,       BTA_AV_SIGNORE,        BTA_AV_CLOSING_SST },
+/* AP_START_EVT */          {BTA_AV_DO_START,       BTA_AV_SIGNORE,        BTA_AV_OPEN_SST },
+/* AP_STOP_EVT */           {BTA_AV_STR_STOPPED,    BTA_AV_SIGNORE,        BTA_AV_OPEN_SST },
+/* API_RECONFIG_EVT */      {BTA_AV_RECONFIG,       BTA_AV_SIGNORE,        BTA_AV_RCFG_SST },
+/* API_PROTECT_REQ_EVT */   {BTA_AV_SECURITY_REQ,   BTA_AV_SIGNORE,        BTA_AV_OPEN_SST },
+/* API_PROTECT_RSP_EVT */   {BTA_AV_SECURITY_RSP,   BTA_AV_SIGNORE,        BTA_AV_OPEN_SST },
+/* API_RC_OPEN_EVT  */      {BTA_AV_SET_USE_RC,     BTA_AV_OPEN_RC,        BTA_AV_OPEN_SST },
+/* SRC_DATA_READY_EVT */    {BTA_AV_DATA_PATH,      BTA_AV_SIGNORE,        BTA_AV_OPEN_SST },
+/* CI_SETCONFIG_OK_EVT */   {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_OPEN_SST },
+/* CI_SETCONFIG_FAIL_EVT */ {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_OPEN_SST },
+/* SDP_DISC_OK_EVT */       {BTA_AV_FREE_SDB,       BTA_AV_SIGNORE,        BTA_AV_OPEN_SST },
+/* SDP_DISC_FAIL_EVT */     {BTA_AV_FREE_SDB,       BTA_AV_SIGNORE,        BTA_AV_OPEN_SST },
+/* STR_DISC_OK_EVT */       {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_OPEN_SST },
+/* STR_DISC_FAIL_EVT */     {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_OPEN_SST },
+/* STR_GETCAP_OK_EVT */     {BTA_AV_SAVE_CAPS,      BTA_AV_SIGNORE,        BTA_AV_OPEN_SST },
+/* STR_GETCAP_FAIL_EVT */   {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_OPEN_SST },
+/* STR_OPEN_OK_EVT */       {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_OPEN_SST },
+/* STR_OPEN_FAIL_EVT */     {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_OPEN_SST },
+/* STR_START_OK_EVT */      {BTA_AV_START_OK,       BTA_AV_SIGNORE,        BTA_AV_OPEN_SST },
+/* STR_START_FAIL_EVT */    {BTA_AV_START_FAILED,   BTA_AV_SIGNORE,        BTA_AV_OPEN_SST },
+/* STR_CLOSE_EVT */         {BTA_AV_STR_CLOSED,     BTA_AV_SIGNORE,        BTA_AV_INIT_SST },
+/* STR_CONFIG_IND_EVT */    {BTA_AV_SETCONFIG_REJ,  BTA_AV_SIGNORE,        BTA_AV_OPEN_SST },
+/* STR_SECURITY_IND_EVT */  {BTA_AV_SECURITY_IND,   BTA_AV_SIGNORE,        BTA_AV_OPEN_SST },
+/* STR_SECURITY_CFM_EVT */  {BTA_AV_SECURITY_CFM,   BTA_AV_SIGNORE,        BTA_AV_OPEN_SST },
+/* STR_WRITE_CFM_EVT */     {BTA_AV_CLR_CONG,       BTA_AV_DATA_PATH,      BTA_AV_OPEN_SST },
+/* STR_SUSPEND_CFM_EVT */   {BTA_AV_SUSPEND_CFM,    BTA_AV_SIGNORE,        BTA_AV_OPEN_SST },
+/* STR_RECONFIG_CFM_EVT */  {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_OPEN_SST },
+/* AVRC_TIMER_EVT */        {BTA_AV_OPEN_RC,        BTA_AV_CHK_2ND_START,  BTA_AV_OPEN_SST },
+/* AVDT_CONNECT_EVT */      {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_OPEN_SST },
+/* AVDT_DISCONNECT_EVT */   {BTA_AV_STR_CLOSED,     BTA_AV_SIGNORE,        BTA_AV_INIT_SST },
+/* ROLE_CHANGE_EVT*/        {BTA_AV_ROLE_RES,       BTA_AV_SIGNORE,        BTA_AV_OPEN_SST },
+/* AVDT_DELAY_RPT_EVT */    {BTA_AV_DELAY_CO,       BTA_AV_SIGNORE,        BTA_AV_OPEN_SST },
+/* ACP_CONNECT_EVT */       {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_OPEN_SST },
+/* API_OFFLOAD_START_EVT */{BTA_AV_OFFLOAD_REQ,    BTA_AV_SIGNORE,        BTA_AV_OPEN_SST },
+/* API_OFFLOAD_START_RSP_EVT */{BTA_AV_OFFLOAD_RSP,    BTA_AV_SIGNORE,        BTA_AV_OPEN_SST }
+};
+
+/* state table for reconfig state */
+static const UINT8 bta_av_sst_rcfg[][BTA_AV_NUM_COLS] =
+{
+/* Event                     Action 1               Action 2               Next state */
+/* AP_OPEN_EVT */           {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_RCFG_SST },
+/* AP_CLOSE_EVT */          {BTA_AV_DISCONNECT_REQ, BTA_AV_SIGNORE,        BTA_AV_CLOSING_SST },
+/* AP_START_EVT */          {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_RCFG_SST },
+/* AP_STOP_EVT */           {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_RCFG_SST },
+/* API_RECONFIG_EVT */      {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_RCFG_SST },
+/* API_PROTECT_REQ_EVT */   {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_RCFG_SST },
+/* API_PROTECT_RSP_EVT */   {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_RCFG_SST },
+/* API_RC_OPEN_EVT  */      {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_RCFG_SST },
+/* SRC_DATA_READY_EVT */    {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_RCFG_SST },
+/* CI_SETCONFIG_OK_EVT */   {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_RCFG_SST },
+/* CI_SETCONFIG_FAIL_EVT */ {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_RCFG_SST },
+/* SDP_DISC_OK_EVT */       {BTA_AV_FREE_SDB,       BTA_AV_SIGNORE,        BTA_AV_RCFG_SST },
+/* SDP_DISC_FAIL_EVT */     {BTA_AV_FREE_SDB,       BTA_AV_SIGNORE,        BTA_AV_RCFG_SST },
+/* STR_DISC_OK_EVT */       {BTA_AV_DISC_RESULTS,   BTA_AV_SIGNORE,        BTA_AV_RCFG_SST },
+/* STR_DISC_FAIL_EVT */     {BTA_AV_STR_CLOSED,     BTA_AV_SIGNORE,        BTA_AV_INIT_SST },
+/* STR_GETCAP_OK_EVT */     {BTA_AV_GETCAP_RESULTS, BTA_AV_SIGNORE,        BTA_AV_RCFG_SST },
+/* STR_GETCAP_FAIL_EVT */   {BTA_AV_STR_CLOSED,     BTA_AV_SIGNORE,        BTA_AV_INIT_SST },
+/* STR_OPEN_OK_EVT */       {BTA_AV_RCFG_STR_OK,    BTA_AV_SIGNORE,        BTA_AV_OPEN_SST },
+/* STR_OPEN_FAIL_EVT */     {BTA_AV_RCFG_FAILED,    BTA_AV_SIGNORE,        BTA_AV_RCFG_SST },
+/* STR_START_OK_EVT */      {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_RCFG_SST },
+/* STR_START_FAIL_EVT */    {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_RCFG_SST },
+/* STR_CLOSE_EVT */         {BTA_AV_RCFG_CONNECT,   BTA_AV_SIGNORE,        BTA_AV_RCFG_SST },
+/* STR_CONFIG_IND_EVT */    {BTA_AV_SETCONFIG_REJ,  BTA_AV_SIGNORE,        BTA_AV_RCFG_SST },
+/* STR_SECURITY_IND_EVT */  {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_RCFG_SST },
+/* STR_SECURITY_CFM_EVT */  {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_RCFG_SST },
+/* STR_WRITE_CFM_EVT */     {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_RCFG_SST },
+/* STR_SUSPEND_CFM_EVT */   {BTA_AV_SUSPEND_CFM,    BTA_AV_SUSPEND_CONT,   BTA_AV_RCFG_SST },
+/* STR_RECONFIG_CFM_EVT */  {BTA_AV_RCFG_CFM,       BTA_AV_SIGNORE,        BTA_AV_RCFG_SST },
+/* AVRC_TIMER_EVT */        {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_RCFG_SST },
+/* AVDT_CONNECT_EVT */      {BTA_AV_RCFG_OPEN,      BTA_AV_SIGNORE,        BTA_AV_RCFG_SST },
+/* AVDT_DISCONNECT_EVT */   {BTA_AV_RCFG_DISCNTD,   BTA_AV_SIGNORE,        BTA_AV_RCFG_SST },
+/* ROLE_CHANGE_EVT*/        {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_RCFG_SST },
+/* AVDT_DELAY_RPT_EVT */    {BTA_AV_DELAY_CO,       BTA_AV_SIGNORE,        BTA_AV_RCFG_SST },
+/* ACP_CONNECT_EVT */       {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_RCFG_SST },
+/* API_OFFLOAD_START_EVT */{BTA_AV_OFFLOAD_REQ,    BTA_AV_SIGNORE,        BTA_AV_RCFG_SST },
+/* API_OFFLOAD_START_RSP_EVT */{BTA_AV_OFFLOAD_RSP,    BTA_AV_SIGNORE,        BTA_AV_RCFG_SST }
+};
+
+/* state table for closing state */
+static const UINT8 bta_av_sst_closing[][BTA_AV_NUM_COLS] =
+{
+/* Event                     Action 1               Action 2               Next state */
+/* AP_OPEN_EVT */           {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_CLOSING_SST },
+/* AP_CLOSE_EVT */          {BTA_AV_DISCONNECT_REQ, BTA_AV_SIGNORE,        BTA_AV_CLOSING_SST },
+/* AP_START_EVT */          {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_CLOSING_SST },
+/* AP_STOP_EVT */           {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_CLOSING_SST },
+/* API_RECONFIG_EVT */      {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_CLOSING_SST },
+/* API_PROTECT_REQ_EVT */   {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_CLOSING_SST },
+/* API_PROTECT_RSP_EVT */   {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_CLOSING_SST },
+/* API_RC_OPEN_EVT  */      {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_CLOSING_SST },
+/* SRC_DATA_READY_EVT */    {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_CLOSING_SST },
+/* CI_SETCONFIG_OK_EVT */   {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_CLOSING_SST },
+/* CI_SETCONFIG_FAIL_EVT */ {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_CLOSING_SST },
+/* SDP_DISC_OK_EVT */       {BTA_AV_SDP_FAILED,     BTA_AV_SIGNORE,        BTA_AV_INIT_SST },
+/* SDP_DISC_FAIL_EVT */     {BTA_AV_SDP_FAILED,     BTA_AV_SIGNORE,        BTA_AV_INIT_SST },
+/* STR_DISC_OK_EVT */       {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_CLOSING_SST },
+/* STR_DISC_FAIL_EVT */     {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_CLOSING_SST },
+/* STR_GETCAP_OK_EVT */     {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_CLOSING_SST },
+/* STR_GETCAP_FAIL_EVT */   {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_CLOSING_SST },
+/* STR_OPEN_OK_EVT */       {BTA_AV_DO_CLOSE,       BTA_AV_SIGNORE,        BTA_AV_CLOSING_SST },
+/* STR_OPEN_FAIL_EVT */     {BTA_AV_DISCONNECT_REQ, BTA_AV_SIGNORE,        BTA_AV_CLOSING_SST },
+/* STR_START_OK_EVT */      {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_CLOSING_SST },
+/* STR_START_FAIL_EVT */    {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_CLOSING_SST },
+/* STR_CLOSE_EVT */         {BTA_AV_DISCONNECT_REQ, BTA_AV_SIGNORE,        BTA_AV_CLOSING_SST },
+/* STR_CONFIG_IND_EVT */    {BTA_AV_SETCONFIG_REJ,  BTA_AV_SIGNORE,        BTA_AV_CLOSING_SST },
+/* STR_SECURITY_IND_EVT */  {BTA_AV_SECURITY_REJ,   BTA_AV_SIGNORE,        BTA_AV_CLOSING_SST },
+/* STR_SECURITY_CFM_EVT */  {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_CLOSING_SST },
+/* STR_WRITE_CFM_EVT */     {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_CLOSING_SST },
+/* STR_SUSPEND_CFM_EVT */   {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_CLOSING_SST },
+/* STR_RECONFIG_CFM_EVT */  {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_CLOSING_SST },
+/* AVRC_TIMER_EVT */        {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_CLOSING_SST },
+/* AVDT_CONNECT_EVT */      {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_CLOSING_SST },
+/* AVDT_DISCONNECT_EVT */   {BTA_AV_STR_CLOSED,     BTA_AV_SIGNORE,        BTA_AV_INIT_SST },
+/* ROLE_CHANGE_EVT*/        {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_CLOSING_SST },
+/* AVDT_DELAY_RPT_EVT */    {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_CLOSING_SST },
+/* ACP_CONNECT_EVT */       {BTA_AV_SIGNORE,        BTA_AV_SIGNORE,        BTA_AV_CLOSING_SST },
+/* API_OFFLOAD_START_EVT */{BTA_AV_OFFLOAD_REQ,    BTA_AV_SIGNORE,        BTA_AV_CLOSING_SST },
+/* API_OFFLOAD_START_RSP_EVT */{BTA_AV_OFFLOAD_RSP,    BTA_AV_SIGNORE,        BTA_AV_CLOSING_SST }
+};
+
+/* type for state table */
+typedef const UINT8 (*tBTA_AV_SST_TBL)[BTA_AV_NUM_COLS];
+
+/* state table */
+static const tBTA_AV_SST_TBL bta_av_sst_tbl[] =
+{
+    bta_av_sst_init,
+    bta_av_sst_incoming,
+    bta_av_sst_opening,
+    bta_av_sst_open,
+    bta_av_sst_rcfg,
+    bta_av_sst_closing
+};
+
+
+
+#if (defined(BTA_AV_DEBUG) && BTA_AV_DEBUG == TRUE)
+static char *bta_av_sst_code(UINT8 state);
+#endif
+
+/*******************************************************************************
+**
+** Function         bta_av_is_rcfg_sst
+**
+** Description      Check if stream state machine is in reconfig state.
+**
+**
+** Returns          TRUE if stream state machine is in reconfig state.
+**
+*******************************************************************************/
+BOOLEAN bta_av_is_rcfg_sst (tBTA_AV_SCB *p_scb)
+{
+    BOOLEAN is_rcfg_sst = FALSE;
+
+    if (p_scb != NULL)
+    {
+        if (p_scb->state == BTA_AV_RCFG_SST)
+            is_rcfg_sst = TRUE;
+    }
+
+    return is_rcfg_sst;
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_ssm_execute
+**
+** Description      Stream state machine event handling function for AV
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_av_ssm_execute(tBTA_AV_SCB *p_scb, UINT16 event, tBTA_AV_DATA *p_data)
+{
+    tBTA_AV_SST_TBL     state_table;
+    UINT8               action;
+    int                 i, xx;
+
+    if(p_scb == NULL)
+    {
+        /* this stream is not registered */
+        APPL_TRACE_EVENT("AV channel not registered");
+        return;
+    }
+
+    /* In case incoming connection is for VDP, we need to swap scb.        */
+    /* When ACP_CONNECT_EVT was received, we put first available scb to    */
+    /* to Incoming state. Later, when STR_CONFIG_IND_EVT is coming, we     */
+    /* know if it is A2DP or VDP.                                          */
+    if ((p_scb->state == BTA_AV_INIT_SST) && (event == BTA_AV_STR_CONFIG_IND_EVT))
+    {
+        for (xx = 0; xx < BTA_AV_NUM_STRS; xx++)
+        {
+            if (bta_av_cb.p_scb[xx])
+            {
+                if (bta_av_cb.p_scb[xx]->state == BTA_AV_INCOMING_SST)
+                {
+                    bta_av_cb.p_scb[xx]->state = BTA_AV_INIT_SST;
+                    bta_av_cb.p_scb[xx]->coll_mask = 0;
+                    p_scb->state = BTA_AV_INCOMING_SST;
+                    break;
+                }
+            }
+        }
+    }
+
+#if (defined(BTA_AV_DEBUG) && BTA_AV_DEBUG == TRUE)
+    APPL_TRACE_VERBOSE("AV Sevent(0x%x)=0x%x(%s) state=%d(%s)",
+        p_scb->hndl, event, bta_av_evt_code(event), p_scb->state, bta_av_sst_code(p_scb->state));
+#else
+    APPL_TRACE_VERBOSE("AV Sevent=0x%x state=%d", event, p_scb->state);
+#endif
+
+    /* look up the state table for the current state */
+    state_table = bta_av_sst_tbl[p_scb->state];
+
+    event -= BTA_AV_FIRST_SSM_EVT;
+
+    /* set next state */
+    p_scb->state = state_table[event][BTA_AV_SNEXT_STATE];
+
+    /* execute action functions */
+    for(i=0; i< BTA_AV_SACTIONS; i++)
+    {
+        if ((action = state_table[event][i]) != BTA_AV_SIGNORE)
+        {
+            (*p_scb->p_act_tbl[action])(p_scb, p_data);
+        }
+        else
+            break;
+    }
+
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_is_scb_opening
+**
+** Description      Returns TRUE is scb is in opening state.
+**
+**
+** Returns          TRUE if scb is in opening state.
+**
+*******************************************************************************/
+BOOLEAN bta_av_is_scb_opening (tBTA_AV_SCB *p_scb)
+{
+    BOOLEAN is_opening = FALSE;
+
+    if (p_scb)
+    {
+        if (p_scb->state == BTA_AV_OPENING_SST)
+            is_opening = TRUE;
+    }
+
+    return is_opening;
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_is_scb_incoming
+**
+** Description      Returns TRUE is scb is in incoming state.
+**
+**
+** Returns          TRUE if scb is in incoming state.
+**
+*******************************************************************************/
+BOOLEAN bta_av_is_scb_incoming (tBTA_AV_SCB *p_scb)
+{
+    BOOLEAN is_incoming = FALSE;
+
+    if (p_scb)
+    {
+        if (p_scb->state == BTA_AV_INCOMING_SST)
+            is_incoming = TRUE;
+    }
+
+    return is_incoming;
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_set_scb_sst_init
+**
+** Description      Set SST state to INIT.
+**                  Use this function to change SST outside of state machine.
+**
+** Returns          None
+**
+*******************************************************************************/
+void bta_av_set_scb_sst_init (tBTA_AV_SCB *p_scb)
+{
+    if (p_scb)
+    {
+        p_scb->state = BTA_AV_INIT_SST;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_is_scb_init
+**
+** Description      Returns TRUE is scb is in init state.
+**
+**
+** Returns          TRUE if scb is in incoming state.
+**
+*******************************************************************************/
+BOOLEAN bta_av_is_scb_init (tBTA_AV_SCB *p_scb)
+{
+    BOOLEAN is_init = FALSE;
+
+    if (p_scb)
+    {
+        if (p_scb->state == BTA_AV_INIT_SST)
+            is_init = TRUE;
+    }
+
+    return is_init;
+}
+
+/*******************************************************************************
+**
+** Function         bta_av_set_scb_sst_incoming
+**
+** Description      Set SST state to incoming.
+**                  Use this function to change SST outside of state machine.
+**
+** Returns          None
+**
+*******************************************************************************/
+void bta_av_set_scb_sst_incoming (tBTA_AV_SCB *p_scb)
+{
+    if (p_scb)
+    {
+        p_scb->state = BTA_AV_INCOMING_SST;
+    }
+}
+
+/*****************************************************************************
+**  Debug Functions
+*****************************************************************************/
+#if (defined(BTA_AV_DEBUG) && BTA_AV_DEBUG == TRUE)
+/*******************************************************************************
+**
+** Function         bta_av_sst_code
+**
+** Description
+**
+** Returns          char *
+**
+*******************************************************************************/
+static char *bta_av_sst_code(UINT8 state)
+{
+    switch(state)
+    {
+    case BTA_AV_INIT_SST: return "INIT";
+    case BTA_AV_INCOMING_SST: return "INCOMING";
+    case BTA_AV_OPENING_SST: return "OPENING";
+    case BTA_AV_OPEN_SST: return "OPEN";
+    case BTA_AV_RCFG_SST: return "RCFG";
+    case BTA_AV_CLOSING_SST: return "CLOSING";
+    default:             return "unknown";
+    }
+}
+
+#endif
+#endif /* BTA_AV_INCLUDED */
diff --git a/rtkbt/code/bt/bta/dm/bta_dm_act.c b/rtkbt/code/bt/bta/dm/bta_dm_act.c
new file mode 100755
index 0000000..3c60f28
--- /dev/null
+++ b/rtkbt/code/bt/bta/dm/bta_dm_act.c
@@ -0,0 +1,5771 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2003-2014 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains the action functions for device manager state
+ *  machine.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_bta_dm"
+
+#include <assert.h>
+#include <string.h>
+
+#include "bt_target.h"
+#include "bt_types.h"
+#include "bta_api.h"
+#include "bta_dm_co.h"
+#include "bta_dm_int.h"
+#include "bta_sys.h"
+#include "btm_api.h"
+#include "btm_int.h"
+#include "btu.h"
+#include "gap_api.h"    /* For GAP_BleReadPeerPrefConnParams */
+#include "bt_common.h"
+#include "l2c_api.h"
+#include "osi/include/log.h"
+#include "osi/include/osi.h"
+#include "sdp_api.h"
+#include "utl.h"
+
+#if (GAP_INCLUDED == TRUE)
+#include "gap_api.h"
+#endif
+
+static void bta_dm_inq_results_cb (tBTM_INQ_RESULTS *p_inq, UINT8 *p_eir);
+static void bta_dm_inq_cmpl_cb (void * p_result);
+static void bta_dm_service_search_remname_cback (BD_ADDR bd_addr, DEV_CLASS dc, BD_NAME bd_name);
+static void bta_dm_remname_cback (tBTM_REMOTE_DEV_NAME *p_remote_name);
+static void bta_dm_find_services ( BD_ADDR bd_addr);
+static void bta_dm_discover_next_device(void);
+static void bta_dm_sdp_callback (UINT16 sdp_status);
+static UINT8 bta_dm_authorize_cback (BD_ADDR bd_addr, DEV_CLASS dev_class, BD_NAME bd_name, UINT8 *service_name, UINT8 service_id, BOOLEAN is_originator);
+static UINT8 bta_dm_pin_cback (BD_ADDR bd_addr, DEV_CLASS dev_class, BD_NAME bd_name, BOOLEAN min_16_digit);
+static UINT8 bta_dm_new_link_key_cback(BD_ADDR bd_addr, DEV_CLASS dev_class, BD_NAME bd_name, LINK_KEY key, UINT8 key_type);
+static UINT8 bta_dm_authentication_complete_cback(BD_ADDR bd_addr, DEV_CLASS dev_class,BD_NAME bd_name, int result);
+static void bta_dm_local_name_cback(BD_ADDR bd_addr);
+static BOOLEAN bta_dm_check_av(UINT16 event);
+static void bta_dm_bl_change_cback (tBTM_BL_EVENT_DATA *p_data);
+
+static void bta_dm_policy_cback(tBTA_SYS_CONN_STATUS status, UINT8 id, UINT8 app_id, BD_ADDR peer_addr);
+
+/* Extended Inquiry Response */
+static UINT8 bta_dm_sp_cback (tBTM_SP_EVT event, tBTM_SP_EVT_DATA *p_data);
+
+static void bta_dm_set_eir (char *local_name);
+
+static void bta_dm_eir_search_services( tBTM_INQ_RESULTS  *p_result,
+                                        tBTA_SERVICE_MASK *p_services_to_search,
+                                        tBTA_SERVICE_MASK *p_services_found);
+
+static void bta_dm_search_timer_cback(void *data);
+static void bta_dm_disable_conn_down_timer_cback(void *data);
+static void bta_dm_rm_cback(tBTA_SYS_CONN_STATUS status, UINT8 id, UINT8 app_id, BD_ADDR peer_addr);
+static void bta_dm_adjust_roles(BOOLEAN delay_role_switch);
+static char *bta_dm_get_remname(void);
+static void bta_dm_bond_cancel_complete_cback(tBTM_STATUS result);
+
+static BOOLEAN bta_dm_read_remote_device_name (BD_ADDR bd_addr,tBT_TRANSPORT transport);
+static void bta_dm_discover_device(BD_ADDR remote_bd_addr);
+
+static void bta_dm_sys_hw_cback( tBTA_SYS_HW_EVT status );
+static void bta_dm_disable_search_and_disc(void);
+
+#if ((defined BLE_INCLUDED) && (BLE_INCLUDED == TRUE))
+    #if ((defined SMP_INCLUDED) && (SMP_INCLUDED == TRUE))
+static UINT8 bta_dm_ble_smp_cback (tBTM_LE_EVT event, BD_ADDR bda, tBTM_LE_EVT_DATA *p_data);
+    #endif
+static void bta_dm_ble_id_key_cback (UINT8 key_type, tBTM_BLE_LOCAL_KEYS *p_key);
+    #if ((defined BTA_GATT_INCLUDED) &&  (BTA_GATT_INCLUDED == TRUE))
+static void bta_dm_gattc_register(void);
+static void btm_dm_start_gatt_discovery(BD_ADDR bd_addr);
+static void bta_dm_cancel_gatt_discovery(BD_ADDR bd_addr);
+static void bta_dm_gattc_callback(tBTA_GATTC_EVT event, tBTA_GATTC *p_data);
+extern tBTA_DM_CONTRL_STATE bta_dm_pm_obtain_controller_state(void);
+    #endif
+
+#if BLE_VND_INCLUDED == TRUE
+static void bta_dm_ctrl_features_rd_cmpl_cback(tBTM_STATUS result);
+#endif
+
+#ifndef BTA_DM_BLE_ADV_CHNL_MAP
+#define BTA_DM_BLE_ADV_CHNL_MAP (BTM_BLE_ADV_CHNL_37|BTM_BLE_ADV_CHNL_38|BTM_BLE_ADV_CHNL_39)
+#endif
+#endif
+
+/* Disable timer interval (in milliseconds) */
+#ifndef BTA_DM_DISABLE_TIMER_MS
+#define BTA_DM_DISABLE_TIMER_MS 5000
+#endif
+
+/* Disable timer retrial interval (in milliseconds) */
+#ifndef BTA_DM_DISABLE_TIMER_RETRIAL_MS
+#define BTA_DM_DISABLE_TIMER_RETRIAL_MS 1500
+#endif
+
+/* Disable connection down timer (in milliseconds) */
+#ifndef BTA_DM_DISABLE_CONN_DOWN_TIMER_MS
+#define BTA_DM_DISABLE_CONN_DOWN_TIMER_MS 1000
+#endif
+
+/* Switch delay timer (in milliseconds) */
+#ifndef BTA_DM_SWITCH_DELAY_TIMER_MS
+#define BTA_DM_SWITCH_DELAY_TIMER_MS 500
+#endif
+
+static void bta_dm_reset_sec_dev_pending(BD_ADDR remote_bd_addr);
+static void bta_dm_remove_sec_dev_entry(BD_ADDR remote_bd_addr);
+static void bta_dm_observe_results_cb(tBTM_INQ_RESULTS *p_inq, UINT8 *p_eir);
+static void bta_dm_observe_cmpl_cb(void * p_result);
+static void bta_dm_delay_role_switch_cback(void *data);
+extern void sdpu_uuid16_to_uuid128(UINT16 uuid16, UINT8* p_uuid128);
+static void bta_dm_disable_timer_cback(void *data);
+
+
+const UINT16 bta_service_id_to_uuid_lkup_tbl [BTA_MAX_SERVICE_ID] =
+{
+    UUID_SERVCLASS_PNP_INFORMATION,         /* Reserved */
+    UUID_SERVCLASS_SERIAL_PORT,             /* BTA_SPP_SERVICE_ID */
+    UUID_SERVCLASS_DIALUP_NETWORKING,       /* BTA_DUN_SERVICE_ID */
+    UUID_SERVCLASS_AUDIO_SOURCE,            /* BTA_A2DP_SOURCE_SERVICE_ID */
+    UUID_SERVCLASS_LAN_ACCESS_USING_PPP,    /* BTA_LAP_SERVICE_ID */
+    UUID_SERVCLASS_HEADSET,                 /* BTA_HSP_HS_SERVICE_ID */
+    UUID_SERVCLASS_HF_HANDSFREE,            /* BTA_HFP_HS_SERVICE_ID */
+    UUID_SERVCLASS_OBEX_OBJECT_PUSH,        /* BTA_OPP_SERVICE_ID */
+    UUID_SERVCLASS_OBEX_FILE_TRANSFER,      /* BTA_FTP_SERVICE_ID */
+    UUID_SERVCLASS_CORDLESS_TELEPHONY,      /* BTA_CTP_SERVICE_ID */
+    UUID_SERVCLASS_INTERCOM,                /* BTA_ICP_SERVICE_ID */
+    UUID_SERVCLASS_IRMC_SYNC,               /* BTA_SYNC_SERVICE_ID */
+    UUID_SERVCLASS_DIRECT_PRINTING,         /* BTA_BPP_SERVICE_ID */
+    UUID_SERVCLASS_IMAGING_RESPONDER,       /* BTA_BIP_SERVICE_ID */
+    UUID_SERVCLASS_PANU,                    /* BTA_PANU_SERVICE_ID */
+    UUID_SERVCLASS_NAP,                     /* BTA_NAP_SERVICE_ID */
+    UUID_SERVCLASS_GN,                      /* BTA_GN_SERVICE_ID */
+    UUID_SERVCLASS_SAP,                     /* BTA_SAP_SERVICE_ID */
+    UUID_SERVCLASS_AUDIO_SINK,              /* BTA_A2DP_SERVICE_ID */
+    UUID_SERVCLASS_AV_REMOTE_CONTROL,       /* BTA_AVRCP_SERVICE_ID */
+    UUID_SERVCLASS_HUMAN_INTERFACE,         /* BTA_HID_SERVICE_ID */
+    UUID_SERVCLASS_VIDEO_SINK,              /* BTA_VDP_SERVICE_ID */
+    UUID_SERVCLASS_PBAP_PSE,                /* BTA_PBAP_SERVICE_ID */
+    UUID_SERVCLASS_HEADSET_AUDIO_GATEWAY,   /* BTA_HSP_SERVICE_ID */
+    UUID_SERVCLASS_AG_HANDSFREE,            /* BTA_HFP_SERVICE_ID */
+    UUID_SERVCLASS_MESSAGE_ACCESS,          /* BTA_MAP_SERVICE_ID */
+    UUID_SERVCLASS_MESSAGE_NOTIFICATION,    /* BTA_MN_SERVICE_ID */
+    UUID_SERVCLASS_HDP_PROFILE,             /* BTA_HDP_SERVICE_ID */
+    UUID_SERVCLASS_PBAP_PCE                 /* BTA_PCE_SERVICE_ID */
+#if BLE_INCLUDED && BTA_GATT_INCLUDED
+    ,UUID_PROTOCOL_ATT                       /* BTA_GATT_SERVICE_ID */
+#endif
+};
+
+/*
+ * NOTE : The number of element in bta_service_id_to_btm_srv_id_lkup_tbl should be matching with
+ *        the value BTA_MAX_SERVICE_ID in bta_api.h
+ *
+ *        i.e., If you add new Service ID for BTA, the correct security ID of the new service
+ *              from Security service definitions (btm_api.h) should be added to this lookup table.
+ */
+const UINT32 bta_service_id_to_btm_srv_id_lkup_tbl [BTA_MAX_SERVICE_ID] =
+{
+    0,                                      /* Reserved */
+    BTM_SEC_SERVICE_SERIAL_PORT,            /* BTA_SPP_SERVICE_ID */
+    BTM_SEC_SERVICE_DUN,                    /* BTA_DUN_SERVICE_ID */
+    BTM_SEC_SERVICE_AVDTP,                  /* BTA_AUDIO_SOURCE_SERVICE_ID */
+    BTM_SEC_SERVICE_LAN_ACCESS,             /* BTA_LAP_SERVICE_ID */
+    BTM_SEC_SERVICE_HEADSET_AG,             /* BTA_HSP_SERVICE_ID */
+    BTM_SEC_SERVICE_AG_HANDSFREE,           /* BTA_HFP_SERVICE_ID */
+    BTM_SEC_SERVICE_OBEX,                   /* BTA_OPP_SERVICE_ID */
+    BTM_SEC_SERVICE_OBEX_FTP,               /* BTA_FTP_SERVICE_ID */
+    BTM_SEC_SERVICE_CORDLESS,               /* BTA_CTP_SERVICE_ID */
+    BTM_SEC_SERVICE_INTERCOM,               /* BTA_ICP_SERVICE_ID */
+    BTM_SEC_SERVICE_IRMC_SYNC,              /* BTA_SYNC_SERVICE_ID */
+    BTM_SEC_SERVICE_BPP_JOB,                /* BTA_BPP_SERVICE_ID */
+    BTM_SEC_SERVICE_BIP,                    /* BTA_BIP_SERVICE_ID */
+    BTM_SEC_SERVICE_BNEP_PANU,              /* BTA_PANU_SERVICE_ID */
+    BTM_SEC_SERVICE_BNEP_NAP,               /* BTA_NAP_SERVICE_ID */
+    BTM_SEC_SERVICE_BNEP_GN,                /* BTA_GN_SERVICE_ID */
+    BTM_SEC_SERVICE_SAP,                    /* BTA_SAP_SERVICE_ID */
+    BTM_SEC_SERVICE_AVDTP,                  /* BTA_A2DP_SERVICE_ID */
+    BTM_SEC_SERVICE_AVCTP,                  /* BTA_AVRCP_SERVICE_ID */
+    BTM_SEC_SERVICE_HIDH_SEC_CTRL,          /* BTA_HID_SERVICE_ID */
+    BTM_SEC_SERVICE_AVDTP,                  /* BTA_VDP_SERVICE_ID */
+    BTM_SEC_SERVICE_PBAP,                   /* BTA_PBAP_SERVICE_ID */
+    BTM_SEC_SERVICE_HEADSET,                /* BTA_HSP_HS_SERVICE_ID */
+    BTM_SEC_SERVICE_HF_HANDSFREE,           /* BTA_HFP_HS_SERVICE_ID */
+    BTM_SEC_SERVICE_MAP,                    /* BTA_MAP_SERVICE_ID */
+    BTM_SEC_SERVICE_MAP,                    /* BTA_MN_SERVICE_ID */
+    BTM_SEC_SERVICE_HDP_SNK,                /* BTA_HDP_SERVICE_ID */
+    BTM_SEC_SERVICE_PBAP                    /* BTA_PCE_SERVICE_ID */
+#if BLE_INCLUDED && BTA_GATT_INCLUDED
+    ,BTM_SEC_SERVICE_ATT                    /* BTA_GATT_SERVICE_ID */
+#endif
+
+};
+
+/* bta security callback */
+const tBTM_APPL_INFO bta_security =
+{
+    &bta_dm_authorize_cback,
+    &bta_dm_pin_cback,
+    &bta_dm_new_link_key_cback,
+    &bta_dm_authentication_complete_cback,
+    &bta_dm_bond_cancel_complete_cback,
+#if (BTM_LOCAL_IO_CAPS != BTM_IO_CAP_NONE)
+    &bta_dm_sp_cback
+#else
+    NULL
+#endif
+#if BLE_INCLUDED == TRUE
+#if SMP_INCLUDED == TRUE
+    ,&bta_dm_ble_smp_cback
+#endif
+    ,&bta_dm_ble_id_key_cback
+#endif
+
+};
+
+#define MAX_DISC_RAW_DATA_BUF       (4096)
+UINT8 g_disc_raw_data_buf[MAX_DISC_RAW_DATA_BUF];
+
+extern DEV_CLASS local_device_default_class;
+extern fixed_queue_t *btu_bta_alarm_queue;
+#ifdef BLUETOOTH_RTK
+INT8 gRssiThresholdForRemoteName = -70;
+#endif
+
+/*******************************************************************************
+**
+** Function         bta_dm_enable
+**
+** Description      Initialises the BT device manager
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_dm_enable(tBTA_DM_MSG *p_data)
+{
+    tBTA_DM_ENABLE enable_event;
+
+    /* if already in use, return an error */
+    if( bta_dm_cb.is_bta_dm_active == TRUE  )
+    {
+        APPL_TRACE_WARNING("%s Device already started by another application", __func__);
+        memset(&enable_event, 0, sizeof(tBTA_DM_ENABLE));
+        enable_event.status = BTA_FAILURE;
+        if (p_data->enable.p_sec_cback != NULL)
+            p_data->enable.p_sec_cback(BTA_DM_ENABLE_EVT, (tBTA_DM_SEC *)&enable_event);
+        return;
+    }
+
+    /* first, register our callback to SYS HW manager */
+    bta_sys_hw_register( BTA_SYS_HW_BLUETOOTH, bta_dm_sys_hw_cback );
+
+    /* make sure security callback is saved - if no callback, do not erase the previous one,
+    it could be an error recovery mechanism */
+    if( p_data->enable.p_sec_cback != NULL  )
+    bta_dm_cb.p_sec_cback = p_data->enable.p_sec_cback;
+    /* notify BTA DM is now active */
+    bta_dm_cb.is_bta_dm_active = TRUE;
+
+    /* send a message to BTA SYS */
+    tBTA_SYS_HW_MSG *sys_enable_event =
+        (tBTA_SYS_HW_MSG *)osi_malloc(sizeof(tBTA_SYS_HW_MSG));
+    sys_enable_event->hdr.event = BTA_SYS_API_ENABLE_EVT;
+    sys_enable_event->hw_module = BTA_SYS_HW_BLUETOOTH;
+
+    bta_sys_sendmsg(sys_enable_event);
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_init_cb
+**
+** Description      Initializes or re-initializes the bta_dm_cb control block
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_dm_init_cb(void)
+{
+    /*
+     * TODO: Should alarm_free() the bta_dm_cb timers during graceful
+     * shutdown.
+     */
+    alarm_free(bta_dm_cb.disable_timer);
+    alarm_free(bta_dm_cb.switch_delay_timer);
+    for (size_t i = 0; i < BTA_DM_NUM_PM_TIMER; i++) {
+        for (size_t j = 0; j < BTA_DM_PM_MODE_TIMER_MAX; j++) {
+            alarm_free(bta_dm_cb.pm_timer[i].timer[j]);
+        }
+    }
+    memset(&bta_dm_cb, 0, sizeof(bta_dm_cb));
+    bta_dm_cb.disable_timer = alarm_new("bta_dm.disable_timer");
+    bta_dm_cb.switch_delay_timer = alarm_new("bta_dm.switch_delay_timer");
+    for (size_t i = 0; i < BTA_DM_NUM_PM_TIMER; i++) {
+        for (size_t j = 0; j < BTA_DM_PM_MODE_TIMER_MAX; j++) {
+            bta_dm_cb.pm_timer[i].timer[j] = alarm_new("bta_dm.pm_timer");
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_sys_hw_cback
+**
+** Description     callback register to SYS to get HW status updates
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_dm_sys_hw_cback( tBTA_SYS_HW_EVT status )
+{
+    DEV_CLASS   dev_class;
+    tBTA_DM_SEC_CBACK           *temp_cback;
+#if BLE_INCLUDED == TRUE
+    UINT8                   key_mask = 0;
+    BT_OCTET16              er;
+    tBTA_BLE_LOCAL_ID_KEYS  id_key;
+#endif
+
+    APPL_TRACE_DEBUG("%s with event: %i", __func__, status);
+
+    /* On H/W error evt, report to the registered DM application callback */
+    if (status == BTA_SYS_HW_ERROR_EVT) {
+          if( bta_dm_cb.p_sec_cback != NULL )
+                bta_dm_cb.p_sec_cback(BTA_DM_HW_ERROR_EVT, NULL);
+          return;
+    }
+
+    if( status == BTA_SYS_HW_OFF_EVT )
+    {
+        if( bta_dm_cb.p_sec_cback != NULL )
+            bta_dm_cb.p_sec_cback(BTA_DM_DISABLE_EVT, NULL);
+
+        /* reinitialize the control block */
+        bta_dm_init_cb();
+
+        /* unregister from SYS */
+        bta_sys_hw_unregister( BTA_SYS_HW_BLUETOOTH );
+        /* notify BTA DM is now unactive */
+        bta_dm_cb.is_bta_dm_active = FALSE;
+    }
+    else
+    if( status == BTA_SYS_HW_ON_EVT )
+    {
+        /* FIXME: We should not unregister as the SYS shall invoke this callback on a H/W error.
+        * We need to revisit when this platform has more than one BLuetooth H/W chip */
+        //bta_sys_hw_unregister( BTA_SYS_HW_BLUETOOTH);
+
+        /* save security callback */
+        temp_cback = bta_dm_cb.p_sec_cback;
+        /* make sure the control block is properly initialized */
+        bta_dm_init_cb();
+        /* and retrieve the callback */
+        bta_dm_cb.p_sec_cback=temp_cback;
+        bta_dm_cb.is_bta_dm_active = TRUE;
+
+        /* hw is ready, go on with BTA DM initialization */
+        alarm_free(bta_dm_search_cb.search_timer);
+        alarm_free(bta_dm_search_cb.gatt_close_timer);
+        memset(&bta_dm_search_cb, 0, sizeof(bta_dm_search_cb));
+        /*
+         * TODO: Should alarm_free() the bta_dm_search_cb timers during
+         * graceful shutdown.
+         */
+        bta_dm_search_cb.search_timer =
+          alarm_new("bta_dm_search.search_timer");
+        bta_dm_search_cb.gatt_close_timer =
+          alarm_new("bta_dm_search.gatt_close_timer");
+
+        memset(&bta_dm_conn_srvcs, 0, sizeof(bta_dm_conn_srvcs));
+        memset(&bta_dm_di_cb, 0, sizeof(tBTA_DM_DI_CB));
+
+        memcpy(dev_class, p_bta_dm_cfg->dev_class, sizeof(dev_class));
+        BTM_SetDeviceClass (dev_class);
+
+#if (defined(BLE_INCLUDED) && (BLE_INCLUDED == TRUE))
+        /* load BLE local information: ID keys, ER if available */
+        bta_dm_co_ble_load_local_keys(&key_mask, er, &id_key);
+
+        if (key_mask & BTA_BLE_LOCAL_KEY_TYPE_ER)
+        {
+            BTM_BleLoadLocalKeys(BTA_BLE_LOCAL_KEY_TYPE_ER, (tBTM_BLE_LOCAL_KEYS *)&er);
+        }
+        if (key_mask & BTA_BLE_LOCAL_KEY_TYPE_ID)
+        {
+            BTM_BleLoadLocalKeys(BTA_BLE_LOCAL_KEY_TYPE_ID, (tBTM_BLE_LOCAL_KEYS *)&id_key);
+        }
+#if (defined(BTA_GATT_INCLUDED) && (BTA_GATT_INCLUDED == TRUE))
+        bta_dm_search_cb.conn_id = BTA_GATT_INVALID_CONN_ID;
+#endif  // (defined(BTA_GATT_INCLUDED) && BTA_GATT_INCLUDED)
+#endif  // (defined(BLE_INCLUDED) && (BLE_INCLUDED == TRUE))
+
+        BTM_SecRegister((tBTM_APPL_INFO*)&bta_security);
+        BTM_SetDefaultLinkSuperTout(p_bta_dm_cfg->link_timeout);
+        BTM_WritePageTimeout(p_bta_dm_cfg->page_timeout);
+        bta_dm_cb.cur_policy = p_bta_dm_cfg->policy_settings;
+        BTM_SetDefaultLinkPolicy(bta_dm_cb.cur_policy);
+        BTM_RegBusyLevelNotif (bta_dm_bl_change_cback, NULL, BTM_BL_UPDATE_MASK|BTM_BL_ROLE_CHG_MASK);
+
+#if BLE_VND_INCLUDED == TRUE
+        BTM_BleReadControllerFeatures (bta_dm_ctrl_features_rd_cmpl_cback);
+#endif
+
+        /* Earlier, we used to invoke BTM_ReadLocalAddr which was just copying the bd_addr
+           from the control block and invoking the callback which was sending the DM_ENABLE_EVT.
+           But then we have a few HCI commands being invoked above which were still in progress
+           when the ENABLE_EVT was sent. So modified this to fetch the local name which forces
+           the DM_ENABLE_EVT to be sent only after all the init steps are complete */
+        BTM_ReadLocalDeviceNameFromController((tBTM_CMPL_CB *)bta_dm_local_name_cback);
+
+        bta_sys_rm_register((tBTA_SYS_CONN_CBACK*)bta_dm_rm_cback);
+
+        /* initialize bluetooth low power manager */
+        bta_dm_init_pm();
+
+        bta_sys_policy_register((tBTA_SYS_CONN_CBACK*)bta_dm_policy_cback);
+
+#if (BLE_INCLUDED == TRUE && BTA_GATT_INCLUDED == TRUE)
+        bta_dm_gattc_register();
+#endif
+
+    }
+    else
+        APPL_TRACE_DEBUG(" --- ignored event");
+
+}
+
+
+/*******************************************************************************
+**
+** Function         bta_dm_disable
+**
+** Description      Disables the BT device manager
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_dm_disable (tBTA_DM_MSG *p_data)
+{
+    UNUSED(p_data);
+
+    /* Set l2cap idle timeout to 0 (so BTE immediately disconnects ACL link after last channel is closed) */
+    L2CA_SetIdleTimeoutByBdAddr((UINT8 *)BT_BD_ANY, 0, BT_TRANSPORT_BR_EDR);
+    L2CA_SetIdleTimeoutByBdAddr((UINT8 *)BT_BD_ANY, 0, BT_TRANSPORT_LE);
+
+    /* disable all active subsystems */
+    bta_sys_disable(BTA_SYS_HW_BLUETOOTH);
+
+    BTM_SetDiscoverability(BTM_NON_DISCOVERABLE, 0, 0);
+    BTM_SetConnectability(BTM_NON_CONNECTABLE, 0, 0);
+
+    bta_dm_disable_pm();
+    bta_dm_disable_search_and_disc();
+    bta_dm_cb.disabling = TRUE;
+
+#if BLE_INCLUDED == TRUE && BTA_GATT_INCLUDED == TRUE
+    BTM_BleClearBgConnDev();
+#endif
+
+    if(BTM_GetNumAclLinks()==0)
+    {
+#if (defined(BTA_DISABLE_DELAY) && BTA_DISABLE_DELAY > 0)
+        /* If BTA_DISABLE_DELAY is defined and greater than zero, then delay the shutdown by
+         * BTA_DISABLE_DELAY milliseconds
+         */
+        APPL_TRACE_WARNING("%s BTA_DISABLE_DELAY set to %d ms",
+                            __FUNCTION__, BTA_DISABLE_DELAY);
+        alarm_set_on_queue(bta_dm_cb.disable_timer, BTA_DISABLE_DELAY,
+                           bta_dm_disable_conn_down_timer_cback, NULL,
+                           btu_bta_alarm_queue);
+#else
+        bta_dm_disable_conn_down_timer_cback(NULL);
+#endif
+    }
+    else
+    {
+        alarm_set_on_queue(bta_dm_cb.disable_timer, BTA_DM_DISABLE_TIMER_MS,
+                           bta_dm_disable_timer_cback, UINT_TO_PTR(0),
+                           btu_bta_alarm_queue);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_disable_timer_cback
+**
+** Description      Called if the disable timer expires
+**                  Used to close ACL connections which are still active
+**
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_dm_disable_timer_cback(void *data)
+{
+    UINT8 i;
+    tBT_TRANSPORT transport = BT_TRANSPORT_BR_EDR;
+    BOOLEAN trigger_disc = FALSE;
+    uint32_t param = PTR_TO_UINT(data);
+
+    APPL_TRACE_EVENT("%s trial %u", __func__, param);
+
+    if (BTM_GetNumAclLinks() && (param == 0))
+    {
+        for(i=0; i<bta_dm_cb.device_list.count; i++)
+        {
+#if (BLE_INCLUDED == TRUE)
+            transport = bta_dm_cb.device_list.peer_device[i].transport;
+#endif
+            btm_remove_acl(bta_dm_cb.device_list.peer_device[i].peer_bdaddr, transport);
+            trigger_disc = TRUE;
+        }
+
+        /* Retrigger disable timer in case ACL disconnect failed, DISABLE_EVT still need
+            to be sent out to avoid jave layer disable timeout */
+        if (trigger_disc)
+        {
+            alarm_set_on_queue(bta_dm_cb.disable_timer,
+                               BTA_DM_DISABLE_TIMER_RETRIAL_MS,
+                               bta_dm_disable_timer_cback, UINT_TO_PTR(1),
+                               btu_bta_alarm_queue);
+        }
+    }
+    else
+    {
+        bta_dm_cb.disabling = FALSE;
+
+        bta_sys_remove_uuid(UUID_SERVCLASS_PNP_INFORMATION);
+        bta_dm_cb.p_sec_cback(BTA_DM_DISABLE_EVT, NULL);
+    }
+}
+
+
+
+
+/*******************************************************************************
+**
+** Function         bta_dm_set_dev_name
+**
+** Description      Sets local device name
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_dm_set_dev_name (tBTA_DM_MSG *p_data)
+{
+
+    BTM_SetLocalDeviceName((char*)p_data->set_name.name);
+    bta_dm_set_eir ((char*)p_data->set_name.name);
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_set_visibility
+**
+** Description      Sets discoverability, connectability and pairability
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_dm_set_visibility(tBTA_DM_MSG *p_data)
+{
+    UINT16 window, interval;
+#if (defined(BTA_GATT_INCLUDED) && BTA_GATT_INCLUDED)
+    UINT16 le_disc_mode = BTM_BleReadDiscoverability();
+    UINT16 le_conn_mode = BTM_BleReadConnectability();
+#endif  // (defined(BTA_GATT_INCLUDED) && BTA_GATT_INCLUDED)
+    UINT16 disc_mode = BTM_ReadDiscoverability(&window, &interval);
+    UINT16 conn_mode = BTM_ReadConnectability(&window, &interval);
+
+    /* set modes for Discoverability and connectability if not ignore */
+    if (p_data->set_visibility.disc_mode != (BTA_DM_IGNORE | BTA_DM_LE_IGNORE))
+    {
+#if (defined(BTA_GATT_INCLUDED) && BTA_GATT_INCLUDED)
+        if ((p_data->set_visibility.disc_mode & BTA_DM_LE_IGNORE) == BTA_DM_LE_IGNORE)
+            p_data->set_visibility.disc_mode =
+                ((p_data->set_visibility.disc_mode & ~BTA_DM_LE_IGNORE) | le_disc_mode);
+#endif  // (defined(BTA_GATT_INCLUDED) && BTA_GATT_INCLUDED)
+        if ((p_data->set_visibility.disc_mode & BTA_DM_IGNORE) == BTA_DM_IGNORE)
+            p_data->set_visibility.disc_mode =
+                ((p_data->set_visibility.disc_mode & ~BTA_DM_IGNORE) | disc_mode);
+
+        BTM_SetDiscoverability(p_data->set_visibility.disc_mode,
+                                bta_dm_cb.inquiry_scan_window,
+                                bta_dm_cb.inquiry_scan_interval);
+    }
+
+    if (p_data->set_visibility.conn_mode != (BTA_DM_IGNORE | BTA_DM_LE_IGNORE))
+    {
+#if (defined(BTA_GATT_INCLUDED) && BTA_GATT_INCLUDED)
+        if ((p_data->set_visibility.conn_mode & BTA_DM_LE_IGNORE) == BTA_DM_LE_IGNORE)
+            p_data->set_visibility.conn_mode =
+                ((p_data->set_visibility.conn_mode & ~BTA_DM_LE_IGNORE) | le_conn_mode);
+#endif  // (defined(BTA_GATT_INCLUDED) && BTA_GATT_INCLUDED)
+        if ((p_data->set_visibility.conn_mode & BTA_DM_IGNORE) == BTA_DM_IGNORE)
+            p_data->set_visibility.conn_mode =
+                ((p_data->set_visibility.conn_mode & ~BTA_DM_IGNORE) | conn_mode);
+
+        BTM_SetConnectability(p_data->set_visibility.conn_mode,
+                                bta_dm_cb.page_scan_window,
+                                bta_dm_cb.page_scan_interval);
+    }
+
+    /* Send False or True if not ignore */
+    if (p_data->set_visibility.pair_mode != BTA_DM_IGNORE )
+    {
+
+        if (p_data->set_visibility.pair_mode == BTA_DM_NON_PAIRABLE)
+            bta_dm_cb.disable_pair_mode = TRUE;
+        else
+            bta_dm_cb.disable_pair_mode = FALSE;
+
+    }
+
+    /* Send False or True if not ignore */
+    if (p_data->set_visibility.conn_paired_only != BTA_DM_IGNORE)
+    {
+
+        if (p_data->set_visibility.conn_paired_only == BTA_DM_CONN_ALL)
+            bta_dm_cb.conn_paired_only = FALSE;
+        else
+            bta_dm_cb.conn_paired_only = TRUE;
+
+    }
+
+    /* Change mode if either mode is not ignore */
+    if (p_data->set_visibility.pair_mode != BTA_DM_IGNORE || p_data->set_visibility.conn_paired_only != BTA_DM_IGNORE)
+        BTM_SetPairableMode((BOOLEAN)(!(bta_dm_cb.disable_pair_mode)),bta_dm_cb.conn_paired_only);
+
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_process_remove_device
+**
+** Description      Removes device, Disconnects ACL link if required.
+****
+*******************************************************************************/
+void bta_dm_process_remove_device(BD_ADDR bd_addr)
+{
+#if (BLE_INCLUDED == TRUE && BTA_GATT_INCLUDED == TRUE)
+     /* need to remove all pending background connection before unpair */
+     BTA_GATTC_CancelOpen(0, bd_addr, FALSE);
+#endif
+
+     BTM_SecDeleteDevice(bd_addr);
+
+#if (BLE_INCLUDED == TRUE && BTA_GATT_INCLUDED == TRUE)
+      /* remove all cached GATT information */
+      BTA_GATTC_Refresh(bd_addr);
+#endif
+
+      if (bta_dm_cb.p_sec_cback)
+      {
+         tBTA_DM_SEC sec_event;
+         bdcpy(sec_event.link_down.bd_addr, bd_addr);
+         /* No connection, set status to success (acl disc code not valid) */
+         sec_event.link_down.status = HCI_SUCCESS;
+         bta_dm_cb.p_sec_cback(BTA_DM_DEV_UNPAIRED_EVT, &sec_event);
+      }
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_remove_device
+**
+** Description      Removes device, disconnects ACL link if required.
+****
+*******************************************************************************/
+void bta_dm_remove_device(tBTA_DM_MSG *p_data)
+{
+    tBTA_DM_API_REMOVE_DEVICE *p_dev = &p_data->remove_dev;
+    BOOLEAN continue_delete_other_dev = FALSE;
+    if (p_dev == NULL)
+        return;
+
+    BD_ADDR other_address;
+    bdcpy(other_address, p_dev->bd_addr);
+
+    /* If ACL exists for the device in the remove_bond message*/
+    BOOLEAN continue_delete_dev = FALSE;
+    UINT8 other_transport = BT_TRANSPORT_INVALID;
+
+    if (BTM_IsAclConnectionUp(p_dev->bd_addr, BT_TRANSPORT_LE) ||
+        BTM_IsAclConnectionUp(p_dev->bd_addr, BT_TRANSPORT_BR_EDR))
+    {
+        APPL_TRACE_DEBUG("%s: ACL Up count  %d", __func__, bta_dm_cb.device_list.count);
+        continue_delete_dev = FALSE;
+
+        /* Take the link down first, and mark the device for removal when disconnected */
+        for(int i=0; i < bta_dm_cb.device_list.count; i++)
+        {
+            if (!bdcmp(bta_dm_cb.device_list.peer_device[i].peer_bdaddr, p_dev->bd_addr))
+            {
+                UINT8 transport = BT_TRANSPORT_BR_EDR;
+
+#if (defined(BTA_GATT_INCLUDED) && BTA_GATT_INCLUDED)
+                transport = bta_dm_cb.device_list.peer_device[i].transport;
+#endif  // (defined(BTA_GATT_INCLUDED) && BTA_GATT_INCLUDED)
+                bta_dm_cb.device_list.peer_device[i].conn_state = BTA_DM_UNPAIRING;
+                btm_remove_acl(p_dev->bd_addr, transport);
+#if (defined(BTA_GATT_INCLUDED) && BTA_GATT_INCLUDED)
+                APPL_TRACE_DEBUG("%s:transport = %d", __func__,
+                                  bta_dm_cb.device_list.peer_device[i].transport);
+
+                /* save the other transport to check if device is connected on other_transport */
+                if(bta_dm_cb.device_list.peer_device[i].transport == BT_TRANSPORT_LE)
+                   other_transport = BT_TRANSPORT_BR_EDR;
+                else
+                   other_transport = BT_TRANSPORT_LE;
+#endif  // (defined(BTA_GATT_INCLUDED) && BTA_GATT_INCLUDED)
+
+                break;
+            }
+        }
+    }
+    else
+    {
+        continue_delete_dev = TRUE;
+    }
+#if (defined(BTA_GATT_INCLUDED) && BTA_GATT_INCLUDED)
+    // If it is DUMO device and device is paired as different address, unpair that device
+    // if different address
+    if ((other_transport && (BTM_ReadConnectedTransportAddress(other_address, other_transport))) ||
+      (!other_transport && (BTM_ReadConnectedTransportAddress(other_address, BT_TRANSPORT_BR_EDR) ||
+       BTM_ReadConnectedTransportAddress(other_address, BT_TRANSPORT_LE))))
+    {
+        continue_delete_other_dev = FALSE;
+        /* Take the link down first, and mark the device for removal when disconnected */
+        for(int i=0; i < bta_dm_cb.device_list.count; i++)
+        {
+            if (!bdcmp(bta_dm_cb.device_list.peer_device[i].peer_bdaddr, other_address))
+            {
+                bta_dm_cb.device_list.peer_device[i].conn_state = BTA_DM_UNPAIRING;
+                btm_remove_acl(other_address,bta_dm_cb.device_list.peer_device[i].transport);
+                break;
+            }
+        }
+    }
+    else
+    {
+        APPL_TRACE_DEBUG("%s: continue to delete the other dev ", __func__);
+        continue_delete_other_dev = TRUE;
+    }
+#endif
+    /* Delete the device mentioned in the msg */
+    if (continue_delete_dev)
+        bta_dm_process_remove_device(p_dev->bd_addr);
+
+    /* Delete the other paired device too */
+    BD_ADDR dummy_bda = {0};
+    if (continue_delete_other_dev && (bdcmp(other_address, dummy_bda) != 0))
+        bta_dm_process_remove_device(other_address);
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_add_device
+**
+** Description      This function adds a Link Key to an security database entry.
+**                  It is normally called during host startup to restore all required information
+**                  stored in the NVRAM.
+****
+*******************************************************************************/
+void bta_dm_add_device (tBTA_DM_MSG *p_data)
+{
+    tBTA_DM_API_ADD_DEVICE *p_dev = &p_data->add_dev;
+    UINT8   *p_dc = NULL;
+    UINT8   *p_lc = NULL;
+    UINT32  trusted_services_mask[BTM_SEC_SERVICE_ARRAY_SIZE];
+    UINT8   index = 0;
+    UINT8   btm_mask_index = 0;
+
+    memset (trusted_services_mask, 0, sizeof(trusted_services_mask));
+
+    /* If not all zeros, the device class has been specified */
+    if (p_dev->dc_known)
+        p_dc = (UINT8 *)p_dev->dc;
+
+    if (p_dev->link_key_known)
+        p_lc = (UINT8 *)p_dev->link_key;
+
+    if (p_dev->is_trusted)
+    {
+        /* covert BTA service mask to BTM mask */
+        while (p_dev->tm && (index < BTA_MAX_SERVICE_ID))
+        {
+            if (p_dev->tm & (UINT32)(1<<index))
+            {
+
+                btm_mask_index =  bta_service_id_to_btm_srv_id_lkup_tbl[index] / BTM_SEC_ARRAY_BITS;
+                trusted_services_mask[btm_mask_index] |= (UINT32)(1 << (bta_service_id_to_btm_srv_id_lkup_tbl[index] - (UINT32)(btm_mask_index * 32)));
+
+                p_dev->tm &= (UINT32)(~(1<<index));
+
+            }
+            index++;
+        }
+    }
+
+    if (!BTM_SecAddDevice (p_dev->bd_addr, p_dc, p_dev->bd_name, p_dev->features,
+                           trusted_services_mask, p_lc, p_dev->key_type, p_dev->io_cap,
+                           p_dev->pin_length))
+    {
+        APPL_TRACE_ERROR ("BTA_DM: Error adding device %08x%04x",
+                (p_dev->bd_addr[0]<<24)+(p_dev->bd_addr[1]<<16)+(p_dev->bd_addr[2]<<8)+p_dev->bd_addr[3],
+                (p_dev->bd_addr[4]<<8)+p_dev->bd_addr[5]);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_close_acl
+**
+** Description      This function forces to close the connection to a remote device
+**                  and optionaly remove the device from security database if
+**                  required.
+****
+*******************************************************************************/
+void bta_dm_close_acl(tBTA_DM_MSG *p_data)
+{
+    tBTA_DM_API_REMOVE_ACL *p_remove_acl = &p_data->remove_acl;
+    UINT8   index;
+
+    APPL_TRACE_DEBUG("bta_dm_close_acl");
+
+    if (BTM_IsAclConnectionUp(p_remove_acl->bd_addr, p_remove_acl->transport))
+    {
+        for (index = 0; index < bta_dm_cb.device_list.count; index ++)
+        {
+            if (!bdcmp( bta_dm_cb.device_list.peer_device[index].peer_bdaddr, p_remove_acl->bd_addr))
+                break;
+            }
+        if (index != bta_dm_cb.device_list.count)
+        {
+            if (p_remove_acl->remove_dev)
+                bta_dm_cb.device_list.peer_device[index].remove_dev_pending = TRUE;
+        }
+        else
+        {
+            APPL_TRACE_ERROR("unknown device, remove ACL failed");
+        }
+        /* Disconnect the ACL link */
+        btm_remove_acl(p_remove_acl->bd_addr, p_remove_acl->transport);
+    }
+    /* if to remove the device from security database ? do it now */
+    else if (p_remove_acl->remove_dev)
+    {
+        if (!BTM_SecDeleteDevice(p_remove_acl->bd_addr))
+        {
+            APPL_TRACE_ERROR("delete device from security database failed.");
+        }
+#if (BLE_INCLUDED == TRUE && BTA_GATT_INCLUDED == TRUE)
+        /* need to remove all pending background connection if any */
+        BTA_GATTC_CancelOpen(0, p_remove_acl->bd_addr, FALSE);
+        /* remove all cached GATT information */
+        BTA_GATTC_Refresh(p_remove_acl->bd_addr);
+#endif
+    }
+    /* otherwise, no action needed */
+
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_remove_all_acl
+**
+** Description      This function forces to close all the ACL links specified by link type
+****
+*******************************************************************************/
+void bta_dm_remove_all_acl(tBTA_DM_MSG *p_data)
+{
+    const tBTA_DM_LINK_TYPE link_type = p_data->remove_all_acl.link_type;
+    tBT_TRANSPORT transport = BT_TRANSPORT_BR_EDR;
+
+    APPL_TRACE_DEBUG("%s link type = %d", __func__, link_type);
+
+    for (UINT8 i=0; i < bta_dm_cb.device_list.count; i++)
+    {
+        BD_ADDR addr = {0};
+        bdcpy(addr, bta_dm_cb.device_list.peer_device[i].peer_bdaddr);
+#if defined (BLE_INCLUDED) && (BLE_INCLUDED == TRUE)
+        transport = bta_dm_cb.device_list.peer_device[i].transport;
+#endif
+        if ((link_type == BTA_DM_LINK_TYPE_ALL) ||
+            ((link_type == BTA_DM_LINK_TYPE_LE) && (transport == BT_TRANSPORT_LE)) ||
+            ((link_type == BTA_DM_LINK_TYPE_BR_EDR) && (transport == BT_TRANSPORT_BR_EDR)))
+        {
+            /* Disconnect the ACL link */
+            btm_remove_acl(addr, transport);
+        }
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         bta_dm_bond
+**
+** Description      Bonds with peer device
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_dm_bond (tBTA_DM_MSG *p_data)
+{
+    tBTM_STATUS status;
+    tBTA_DM_SEC sec_event;
+    char        *p_name;
+
+    if (p_data->bond.transport == BTA_TRANSPORT_UNKNOWN)
+        status = BTM_SecBond ( p_data->bond.bd_addr, 0, NULL, 0 );
+    else
+        status = BTM_SecBondByTransport ( p_data->bond.bd_addr, p_data->bond.transport, 0, NULL, 0 );
+
+
+    if (bta_dm_cb.p_sec_cback && (status != BTM_CMD_STARTED))
+    {
+
+        memset(&sec_event, 0, sizeof(tBTA_DM_SEC));
+        bdcpy(sec_event.auth_cmpl.bd_addr, p_data->bond.bd_addr);
+        p_name = BTM_SecReadDevName(p_data->bond.bd_addr);
+        if (p_name != NULL)
+        {
+            memcpy(sec_event.auth_cmpl.bd_name, p_name, (BD_NAME_LEN-1));
+            sec_event.auth_cmpl.bd_name[BD_NAME_LEN-1] = 0;
+        }
+
+/*      taken care of by memset [above]
+        sec_event.auth_cmpl.key_present = FALSE;
+        sec_event.auth_cmpl.success = FALSE;
+*/
+        sec_event.auth_cmpl.fail_reason = HCI_ERR_ILLEGAL_COMMAND;
+        if (status == BTM_SUCCESS)
+        {
+            sec_event.auth_cmpl.success = TRUE;
+        }
+        else
+        {
+            /* delete this device entry from Sec Dev DB */
+            bta_dm_remove_sec_dev_entry(p_data->bond.bd_addr);
+        }
+        bta_dm_cb.p_sec_cback(BTA_DM_AUTH_CMPL_EVT, &sec_event);
+    }
+
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_bond_cancel
+**
+** Description      Cancels bonding with a peer device
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_dm_bond_cancel (tBTA_DM_MSG *p_data)
+{
+    tBTM_STATUS status;
+    tBTA_DM_SEC sec_event;
+
+    APPL_TRACE_EVENT(" bta_dm_bond_cancel ");
+    status = BTM_SecBondCancel ( p_data->bond_cancel.bd_addr );
+
+    if (bta_dm_cb.p_sec_cback && (status != BTM_CMD_STARTED && status != BTM_SUCCESS))
+    {
+        sec_event.bond_cancel_cmpl.result = BTA_FAILURE;
+
+        bta_dm_cb.p_sec_cback(BTA_DM_BOND_CANCEL_CMPL_EVT, &sec_event);
+    }
+
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_pin_reply
+**
+** Description      Send the pin_reply to a request from BTM
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_dm_pin_reply (tBTA_DM_MSG *p_data)
+{
+    UINT32  trusted_mask[BTM_SEC_SERVICE_ARRAY_SIZE];
+    UINT32  * current_trusted_mask;
+
+    current_trusted_mask = BTM_ReadTrustedMask(p_data->pin_reply.bd_addr);
+
+    if(current_trusted_mask)
+    {
+        memcpy(trusted_mask, current_trusted_mask, sizeof(trusted_mask));
+    }
+    else
+    {
+        memset(trusted_mask, 0, sizeof(trusted_mask));
+    }
+
+    if(p_data->pin_reply.accept)
+    {
+
+        BTM_PINCodeReply(p_data->pin_reply.bd_addr, BTM_SUCCESS, p_data->pin_reply.pin_len, p_data->pin_reply.p_pin, trusted_mask );
+    }
+    else
+    {
+        BTM_PINCodeReply(p_data->pin_reply.bd_addr, BTM_NOT_AUTHORIZED, 0, NULL, trusted_mask );
+    }
+
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_policy_cback
+**
+** Description      process the link policy changes
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_dm_policy_cback(tBTA_SYS_CONN_STATUS status, UINT8 id, UINT8 app_id, BD_ADDR peer_addr)
+{
+    tBTA_DM_PEER_DEVICE *p_dev = NULL;
+    UINT16  policy = app_id;
+    UINT32  mask = (UINT32)(1 << id);
+
+    if(peer_addr)
+        p_dev = bta_dm_find_peer_device(peer_addr);
+
+    APPL_TRACE_DEBUG(" bta_dm_policy_cback cmd:%d, policy:0x%x",
+        status, policy);
+    switch(status)
+    {
+    case BTA_SYS_PLCY_SET:
+        if(!p_dev)
+            return;
+        /* restore the default link policy */
+        p_dev->link_policy |= policy;
+        BTM_SetLinkPolicy(p_dev->peer_bdaddr, &(p_dev->link_policy));
+        break;
+
+    case BTA_SYS_PLCY_CLR:
+        if(!p_dev)
+            return;
+        /* clear the policy from the default link policy */
+        p_dev->link_policy &= (~policy);
+        BTM_SetLinkPolicy(p_dev->peer_bdaddr, &(p_dev->link_policy));
+
+        if(policy & (HCI_ENABLE_SNIFF_MODE | HCI_ENABLE_PARK_MODE))
+        {
+            /* if clearing sniff/park, wake the link */
+            bta_dm_pm_active(p_dev->peer_bdaddr);
+        }
+        break;
+
+    case BTA_SYS_PLCY_DEF_SET:
+        /* want to restore/set the role switch policy */
+        bta_dm_cb.role_policy_mask &= ~mask;
+        if(0 == bta_dm_cb.role_policy_mask)
+        {
+            /* if nobody wants to insist on the role */
+            bta_dm_cb.cur_policy |= HCI_ENABLE_MASTER_SLAVE_SWITCH;
+            BTM_SetDefaultLinkPolicy(bta_dm_cb.cur_policy);
+        }
+        break;
+
+    case BTA_SYS_PLCY_DEF_CLR:
+        /* want to remove the role switch policy */
+        bta_dm_cb.role_policy_mask |= mask;
+        bta_dm_cb.cur_policy &= ~HCI_ENABLE_MASTER_SLAVE_SWITCH;
+        BTM_SetDefaultLinkPolicy(bta_dm_cb.cur_policy);
+        break;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_confirm
+**
+** Description      Send the user confirm request reply in response to a
+**                  request from BTM
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_dm_confirm(tBTA_DM_MSG *p_data)
+{
+    tBTM_STATUS res = BTM_NOT_AUTHORIZED;
+
+    if(p_data->confirm.accept == TRUE)
+        res = BTM_SUCCESS;
+    BTM_ConfirmReqReply(res, p_data->confirm.bd_addr);
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_loc_oob
+**
+** Description      Retrieve the OOB data from the local LM
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_dm_loc_oob(tBTA_DM_MSG *p_data)
+{
+    UNUSED(p_data);
+    BTM_ReadLocalOobData();
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_ci_io_req_act
+**
+** Description      respond to the IO capabilities request from BTM
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_dm_ci_io_req_act(tBTA_DM_MSG *p_data)
+{
+    tBTM_AUTH_REQ   auth_req = BTM_AUTH_AP_NO;
+    if(p_data->ci_io_req.auth_req)
+        auth_req = BTM_AUTH_AP_YES;
+    BTM_IoCapRsp(p_data->ci_io_req.bd_addr, p_data->ci_io_req.io_cap,
+        p_data->ci_io_req.oob_data, auth_req);
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_ci_rmt_oob_act
+**
+** Description      respond to the OOB data request for the remote device from BTM
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_dm_ci_rmt_oob_act(tBTA_DM_MSG *p_data)
+{
+    tBTM_STATUS res = BTM_NOT_AUTHORIZED;
+
+    if(p_data->ci_rmt_oob.accept == TRUE)
+        res = BTM_SUCCESS;
+    BTM_RemoteOobDataReply(res, p_data->ci_rmt_oob.bd_addr,
+        p_data->ci_rmt_oob.c, p_data->ci_rmt_oob.r );
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_search_start
+**
+** Description      Starts an inquiry
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_dm_search_start (tBTA_DM_MSG *p_data)
+{
+    tBTM_INQUIRY_CMPL result;
+
+#if (BLE_INCLUDED == TRUE && BTA_GATT_INCLUDED == TRUE)
+    size_t len = sizeof(tBT_UUID) * p_data->search.num_uuid;
+    bta_dm_gattc_register();
+#endif
+
+    APPL_TRACE_DEBUG("%s avoid_scatter=%d", __func__, p_bta_dm_cfg->avoid_scatter);
+
+    if (p_bta_dm_cfg->avoid_scatter &&
+        (p_data->search.rs_res == BTA_DM_RS_NONE) && bta_dm_check_av(BTA_DM_API_SEARCH_EVT))
+    {
+        memcpy(&bta_dm_cb.search_msg, &p_data->search, sizeof(tBTA_DM_API_SEARCH));
+        return;
+    }
+
+    BTM_ClearInqDb(NULL);
+    /* save search params */
+    bta_dm_search_cb.p_search_cback = p_data->search.p_cback;
+    bta_dm_search_cb.services = p_data->search.services;
+
+#if (BLE_INCLUDED == TRUE && BTA_GATT_INCLUDED == TRUE)
+    osi_free_and_reset((void **)&bta_dm_search_cb.p_srvc_uuid);
+
+    if ((bta_dm_search_cb.num_uuid = p_data->search.num_uuid) != 0 &&
+         p_data->search.p_uuid != NULL) {
+        bta_dm_search_cb.p_srvc_uuid = (tBT_UUID *)osi_malloc(len);
+        memcpy(bta_dm_search_cb.p_srvc_uuid, p_data->search.p_uuid, len);
+    }
+#endif
+    result.status = BTM_StartInquiry(   (tBTM_INQ_PARMS*)&p_data->search.inq_params,
+                        bta_dm_inq_results_cb,
+                        (tBTM_CMPL_CB*) bta_dm_inq_cmpl_cb);
+
+    APPL_TRACE_EVENT("%s status=%d", __func__, result.status);
+    if (result.status != BTM_CMD_STARTED)
+    {
+        result.num_resp = 0;
+        bta_dm_inq_cmpl_cb ((void *)&result);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_search_cancel
+**
+** Description      Cancels an ongoing search for devices
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_dm_search_cancel (tBTA_DM_MSG *p_data)
+{
+    UNUSED(p_data);
+    tBTA_DM_MSG *p_msg;
+
+    if (BTM_IsInquiryActive())
+    {
+        if (BTM_CancelInquiry() == BTM_SUCCESS)
+        {
+            bta_dm_search_cancel_notify(NULL);
+            p_msg = (tBTA_DM_MSG *)osi_malloc(sizeof(tBTA_DM_MSG));
+            p_msg->hdr.event = BTA_DM_SEARCH_CMPL_EVT;
+            p_msg->hdr.layer_specific = BTA_DM_API_DISCOVER_EVT;
+            bta_sys_sendmsg(p_msg);
+        } else {
+            /* flag a search cancel is pending */
+            bta_dm_search_cb.cancel_pending = TRUE;
+        }
+    }
+    /* If no Service Search going on then issue cancel remote name in case it is active */
+    else if (!bta_dm_search_cb.name_discover_done)
+    {
+        BTM_CancelRemoteDeviceName();
+
+        p_msg = (tBTA_DM_MSG *)osi_malloc(sizeof(tBTA_DM_MSG));
+        p_msg->hdr.event = BTA_DM_SEARCH_CMPL_EVT;
+        p_msg->hdr.layer_specific = BTA_DM_API_DISCOVER_EVT;
+        bta_sys_sendmsg(p_msg);
+    } else {
+        p_msg = (tBTA_DM_MSG *)osi_malloc(sizeof(tBTA_DM_MSG));
+        p_msg->hdr.event = BTA_DM_INQUIRY_CMPL_EVT;
+        p_msg->hdr.layer_specific = BTA_DM_API_DISCOVER_EVT;
+        bta_sys_sendmsg(p_msg);
+    }
+
+#if BLE_INCLUDED == TRUE && BTA_GATT_INCLUDED == TRUE
+    if (bta_dm_search_cb.gatt_disc_active)
+    {
+        bta_dm_cancel_gatt_discovery(bta_dm_search_cb.peer_bdaddr);
+    }
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_discover
+**
+** Description      Discovers services on a remote device
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_dm_discover (tBTA_DM_MSG *p_data)
+{
+#if BLE_INCLUDED == TRUE && BTA_GATT_INCLUDED == TRUE
+    size_t len = sizeof(tBT_UUID) * p_data->discover.num_uuid;
+#endif
+    APPL_TRACE_EVENT("%s services_to_search=0x%04X, sdp_search=%d", __func__,
+                      p_data->discover.services, p_data->discover.sdp_search);
+
+    /* save the search condition */
+    bta_dm_search_cb.services = p_data->discover.services;
+
+#if BLE_INCLUDED == TRUE && BTA_GATT_INCLUDED == TRUE
+    bta_dm_gattc_register();
+    osi_free_and_reset((void **)&bta_dm_search_cb.p_srvc_uuid);
+    if ((bta_dm_search_cb.num_uuid = p_data->discover.num_uuid) != 0 &&
+        p_data->discover.p_uuid != NULL) {
+        bta_dm_search_cb.p_srvc_uuid = (tBT_UUID *)osi_malloc(len);
+        memcpy(bta_dm_search_cb.p_srvc_uuid, p_data->discover.p_uuid, len);
+    }
+    bta_dm_search_cb.uuid_to_search = bta_dm_search_cb.num_uuid;
+#endif
+
+    bta_dm_search_cb.p_search_cback = p_data->discover.p_cback;
+    bta_dm_search_cb.sdp_search = p_data->discover.sdp_search;
+    bta_dm_search_cb.services_to_search = bta_dm_search_cb.services;
+    bta_dm_search_cb.service_index = 0;
+    bta_dm_search_cb.services_found = 0;
+    bta_dm_search_cb.peer_name[0] = 0;
+    bta_dm_search_cb.sdp_search = p_data->discover.sdp_search;
+    bta_dm_search_cb.p_btm_inq_info = BTM_InqDbRead (p_data->discover.bd_addr);
+    bta_dm_search_cb.transport = p_data->discover.transport;
+
+    bta_dm_search_cb.name_discover_done = FALSE;
+    memcpy(&bta_dm_search_cb.uuid, &p_data->discover.uuid, sizeof(tSDP_UUID));
+    bta_dm_discover_device(p_data->discover.bd_addr);
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_di_disc_cmpl
+**
+** Description      Sends event to application when DI discovery complete
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_dm_di_disc_cmpl(tBTA_DM_MSG *p_data)
+{
+    tBTA_DM_DI_DISC_CMPL    di_disc;
+
+    memset(&di_disc, 0, sizeof(tBTA_DM_DI_DISC_CMPL));
+    bdcpy(di_disc.bd_addr, bta_dm_search_cb.peer_bdaddr);
+
+    if((p_data->hdr.offset == SDP_SUCCESS)
+        || (p_data->hdr.offset == SDP_DB_FULL))
+    {
+        di_disc.num_record  = SDP_GetNumDiRecords(bta_dm_di_cb.p_di_db);
+    }
+    else
+        di_disc.result      = BTA_FAILURE;
+
+    bta_dm_di_cb.p_di_db = NULL;
+    bta_dm_search_cb.p_search_cback(BTA_DM_DI_DISC_CMPL_EVT, (tBTA_DM_SEARCH *) &di_disc);
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_di_disc_callback
+**
+** Description      This function queries a remote device for DI information.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_dm_di_disc_callback(UINT16 result)
+{
+    tBTA_DM_MSG *p_msg = (tBTA_DM_MSG *)osi_malloc(sizeof(tBTA_DM_MSG));
+
+    p_msg->hdr.event = BTA_DM_SEARCH_CMPL_EVT;
+    p_msg->hdr.layer_specific = BTA_DM_API_DI_DISCOVER_EVT;
+    p_msg->hdr.offset = result;
+
+    bta_sys_sendmsg(p_msg);
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_disable_search_and_disc
+**
+** Description      Cancels an ongoing search or discovery for devices in case of
+**                  a Bluetooth disable
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_dm_disable_search_and_disc (void)
+{
+    tBTA_DM_DI_DISC_CMPL    di_disc;
+
+    if (bta_dm_search_cb.state != BTA_DM_SEARCH_IDLE)
+        bta_dm_search_cancel(NULL);
+
+    if (bta_dm_di_cb.p_di_db != NULL)
+    {
+        memset(&di_disc, 0, sizeof(tBTA_DM_DI_DISC_CMPL));
+        bdcpy(di_disc.bd_addr, bta_dm_search_cb.peer_bdaddr);
+        di_disc.result      = BTA_FAILURE;
+
+        bta_dm_di_cb.p_di_db = NULL;
+        bta_dm_search_cb.p_search_cback(BTA_DM_DI_DISC_CMPL_EVT, NULL);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_di_disc
+**
+** Description      This function queries a remote device for DI information.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_dm_di_disc (tBTA_DM_MSG *p_data)
+{
+    UINT16  result = BTA_FAILURE;
+
+    bta_dm_search_cb.p_search_cback = p_data->di_disc.p_cback;
+    bdcpy(bta_dm_search_cb.peer_bdaddr, p_data->di_disc.bd_addr);
+    bta_dm_di_cb.p_di_db = p_data->di_disc.p_sdp_db;
+
+    bta_dm_search_cb.p_sdp_db = (tSDP_DISCOVERY_DB *)osi_malloc(BTA_DM_SDP_DB_SIZE);
+    if (SDP_DiDiscover(bta_dm_search_cb.peer_bdaddr, p_data->di_disc.p_sdp_db,
+                       p_data->di_disc.len,
+                       bta_dm_di_disc_callback) == SDP_SUCCESS) {
+        result = BTA_SUCCESS;
+    }
+
+    if (result == BTA_FAILURE) {
+        tBTA_DM_MSG *p_msg = (tBTA_DM_MSG *)osi_malloc(sizeof(tBTA_DM_MSG));
+
+        p_msg->hdr.event = BTA_DM_SEARCH_CMPL_EVT;
+        p_msg->hdr.layer_specific = BTA_DM_API_DI_DISCOVER_EVT;
+        p_data->hdr.offset = result;
+        bta_sys_sendmsg(p_msg);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_read_remote_device_name
+**
+** Description      Initiate to get remote device name
+**
+** Returns          TRUE if started to get remote name
+**
+*******************************************************************************/
+static BOOLEAN bta_dm_read_remote_device_name (BD_ADDR bd_addr,tBT_TRANSPORT transport)
+{
+    tBTM_STATUS  btm_status;
+
+    APPL_TRACE_DEBUG("bta_dm_read_remote_device_name");
+
+    bdcpy(bta_dm_search_cb.peer_bdaddr, bd_addr);
+    bta_dm_search_cb.peer_name[0] = 0;
+
+    btm_status = BTM_ReadRemoteDeviceName (bta_dm_search_cb.peer_bdaddr,
+                                           (tBTM_CMPL_CB *) bta_dm_remname_cback,
+                                           transport);
+
+    if ( btm_status == BTM_CMD_STARTED )
+    {
+        APPL_TRACE_DEBUG("bta_dm_read_remote_device_name: BTM_ReadRemoteDeviceName is started");
+
+        return (TRUE);
+    }
+    else if ( btm_status == BTM_BUSY )
+    {
+        APPL_TRACE_DEBUG("bta_dm_read_remote_device_name: BTM_ReadRemoteDeviceName is busy");
+
+        /* Remote name discovery is on going now so BTM cannot notify through "bta_dm_remname_cback" */
+        /* adding callback to get notified that current reading remore name done */
+        BTM_SecAddRmtNameNotifyCallback(&bta_dm_service_search_remname_cback);
+
+        return (TRUE);
+    }
+    else
+    {
+        APPL_TRACE_WARNING("bta_dm_read_remote_device_name: BTM_ReadRemoteDeviceName returns 0x%02X", btm_status);
+
+        return (FALSE);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_inq_cmpl
+**
+** Description      Process the inquiry complete event from BTM
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_dm_inq_cmpl (tBTA_DM_MSG *p_data)
+{
+    tBTA_DM_SEARCH  data;
+
+    APPL_TRACE_DEBUG("bta_dm_inq_cmpl");
+
+    data.inq_cmpl.num_resps = p_data->inq_cmpl.num;
+    bta_dm_search_cb.p_search_cback(BTA_DM_INQ_CMPL_EVT, &data);
+
+    if((bta_dm_search_cb.p_btm_inq_info = BTM_InqDbFirst()) != NULL)
+    {
+        /* start name and service discovery from the first device on inquiry result */
+        bta_dm_search_cb.name_discover_done = FALSE;
+        bta_dm_search_cb.peer_name[0]       = 0;
+        bta_dm_discover_device(bta_dm_search_cb.p_btm_inq_info->results.remote_bd_addr);
+    } else {
+        tBTA_DM_MSG *p_msg = (tBTA_DM_MSG *)osi_malloc(sizeof(tBTA_DM_MSG));
+
+        /* no devices, search complete */
+        bta_dm_search_cb.services = 0;
+
+        p_msg->hdr.event = BTA_DM_SEARCH_CMPL_EVT;
+        p_msg->hdr.layer_specific = BTA_DM_API_DISCOVER_EVT;
+        bta_sys_sendmsg(p_msg);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_rmt_name
+**
+** Description      Process the remote name result from BTM
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_dm_rmt_name (tBTA_DM_MSG *p_data)
+{
+    APPL_TRACE_DEBUG("bta_dm_rmt_name");
+
+    if( p_data->rem_name.result.disc_res.bd_name[0] && bta_dm_search_cb.p_btm_inq_info)
+    {
+        bta_dm_search_cb.p_btm_inq_info->appl_knows_rem_name = TRUE;
+    }
+
+    bta_dm_discover_device(bta_dm_search_cb.peer_bdaddr);
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_disc_rmt_name
+**
+** Description      Process the remote name result from BTM when application
+**                  wants to find the name for a bdaddr
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_dm_disc_rmt_name (tBTA_DM_MSG *p_data)
+{
+    tBTM_INQ_INFO *p_btm_inq_info;
+
+    APPL_TRACE_DEBUG("bta_dm_disc_rmt_name");
+
+    p_btm_inq_info = BTM_InqDbRead (p_data->rem_name.result.disc_res.bd_addr);
+    if( p_btm_inq_info )
+    {
+        if( p_data->rem_name.result.disc_res.bd_name[0] )
+        {
+            p_btm_inq_info->appl_knows_rem_name = TRUE;
+        }
+    }
+
+#ifdef BLUETOOTH_RTK
+    tBTA_DM_SEARCH      result;
+    if( p_data->rem_name.result.disc_res.bd_name[0] ) {
+        bdcpy (result.disc_ble_res.bd_addr, p_data->rem_name.result.disc_res.bd_addr);
+		strlcpy((char*)result.disc_ble_res.bd_name,
+                (char*)bta_dm_search_cb.peer_name, BD_NAME_LEN);
+        if(!bdcmp(result.disc_ble_res.bd_addr, bta_dm_search_cb.peer_bdaddr))
+            bta_dm_search_cb.p_search_cback(BTA_DM_DISC_NAME_EVT, &result);
+    }
+
+#endif
+
+    bta_dm_discover_device(p_data->rem_name.result.disc_res.bd_addr);
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_sdp_result
+**
+** Description      Process the discovery result from sdp
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_dm_sdp_result (tBTA_DM_MSG *p_data)
+{
+
+    tSDP_DISC_REC   *p_sdp_rec = NULL;
+    tBTA_DM_MSG     *p_msg;
+    BOOLEAN          scn_found = FALSE;
+    UINT16           service = 0xFFFF;
+    tSDP_PROTOCOL_ELEM  pe;
+
+#if BLE_INCLUDED == TRUE && BTA_GATT_INCLUDED == TRUE
+    tBT_UUID           *p_uuid = bta_dm_search_cb.p_srvc_uuid;
+    tBTA_DM_SEARCH      result;
+    tBT_UUID            service_uuid;
+#endif
+
+    UINT32 num_uuids = 0;
+    UINT8  uuid_list[32][MAX_UUID_SIZE]; // assuming a max of 32 services
+
+    if((p_data->sdp_event.sdp_result == SDP_SUCCESS)
+        || (p_data->sdp_event.sdp_result == SDP_NO_RECS_MATCH)
+        || (p_data->sdp_event.sdp_result == SDP_DB_FULL))
+    {
+        APPL_TRACE_DEBUG("sdp_result::0x%x", p_data->sdp_event.sdp_result);
+        do
+        {
+
+            p_sdp_rec = NULL;
+            if( bta_dm_search_cb.service_index == (BTA_USER_SERVICE_ID+1) )
+            {
+                p_sdp_rec = SDP_FindServiceUUIDInDb(bta_dm_search_cb.p_sdp_db, &bta_dm_search_cb.uuid, p_sdp_rec);
+
+                if (p_sdp_rec && SDP_FindProtocolListElemInRec(p_sdp_rec, UUID_PROTOCOL_RFCOMM, &pe))
+                {
+                    bta_dm_search_cb.peer_scn = (UINT8) pe.params[0];
+                    scn_found = TRUE;
+                }
+            }
+            else
+            {
+                service = bta_service_id_to_uuid_lkup_tbl[bta_dm_search_cb.service_index-1];
+                p_sdp_rec = SDP_FindServiceInDb(bta_dm_search_cb.p_sdp_db, service, p_sdp_rec);
+            }
+#if BLE_INCLUDED == TRUE && BTA_GATT_INCLUDED == TRUE
+            /* finished with BR/EDR services, now we check the result for GATT based service UUID */
+            if (bta_dm_search_cb.service_index == BTA_MAX_SERVICE_ID)
+            {
+                if (bta_dm_search_cb.uuid_to_search != 0 && p_uuid != NULL)
+                {
+                    p_uuid +=  (bta_dm_search_cb.num_uuid - bta_dm_search_cb.uuid_to_search);
+                    /* only support 16 bits UUID for now */
+                    service = p_uuid->uu.uuid16;
+
+                }
+                /* all GATT based services */
+                do
+                {
+                    /* find a service record, report it */
+                    p_sdp_rec = SDP_FindServiceInDb(bta_dm_search_cb.p_sdp_db,
+                                                0, p_sdp_rec);
+                    if (p_sdp_rec)
+                    {
+                        if (SDP_FindServiceUUIDInRec(p_sdp_rec, &service_uuid))
+                        {
+                            /* send result back to app now, one by one */
+                            bdcpy (result.disc_ble_res.bd_addr, bta_dm_search_cb.peer_bdaddr);
+                            strlcpy((char*)result.disc_ble_res.bd_name, bta_dm_get_remname(), BD_NAME_LEN);
+                            result.disc_ble_res.service.len = service_uuid.len;
+                            result.disc_ble_res.service.uu.uuid16 = service_uuid.uu.uuid16;
+
+                            bta_dm_search_cb.p_search_cback(BTA_DM_DISC_BLE_RES_EVT, &result);
+                        }
+                    }
+
+                    if (bta_dm_search_cb.uuid_to_search > 0)
+                        break;
+
+                } while (p_sdp_rec);
+            }
+            else
+#endif
+            {
+                /* SDP_DB_FULL means some records with the
+                   required attributes were received */
+                if (((p_data->sdp_event.sdp_result == SDP_DB_FULL) &&
+                        bta_dm_search_cb.services != BTA_ALL_SERVICE_MASK) ||
+                        (p_sdp_rec != NULL))
+                {
+                    if (service != UUID_SERVCLASS_PNP_INFORMATION)
+                    {
+                        UINT16 tmp_svc = 0xFFFF;
+                        bta_dm_search_cb.services_found |=
+                            (tBTA_SERVICE_MASK)(BTA_SERVICE_ID_TO_SERVICE_MASK(bta_dm_search_cb.service_index-1));
+                        tmp_svc = bta_service_id_to_uuid_lkup_tbl[bta_dm_search_cb.service_index-1];
+                        /* Add to the list of UUIDs */
+                        sdpu_uuid16_to_uuid128(tmp_svc, uuid_list[num_uuids]);
+                        num_uuids++;
+                    }
+                }
+            }
+
+            if(bta_dm_search_cb.services == BTA_ALL_SERVICE_MASK &&
+                bta_dm_search_cb.services_to_search == 0)
+            {
+#if BLE_INCLUDED == TRUE && BTA_GATT_INCLUDED == TRUE
+                if ( bta_dm_search_cb.service_index == BTA_BLE_SERVICE_ID &&
+                    bta_dm_search_cb.uuid_to_search > 0)
+                    bta_dm_search_cb.uuid_to_search --;
+
+                if (bta_dm_search_cb.uuid_to_search == 0 ||
+                    bta_dm_search_cb.service_index != BTA_BLE_SERVICE_ID)
+#endif
+                    bta_dm_search_cb.service_index++;
+            }
+            else /* regular one service per search or PNP search */
+                break;
+
+        } while (bta_dm_search_cb.service_index <= BTA_MAX_SERVICE_ID);
+
+        APPL_TRACE_DEBUG("%s services_found = %04x", __FUNCTION__,
+                         bta_dm_search_cb.services_found);
+
+        /* Collect the 128-bit services here and put them into the list */
+        if(bta_dm_search_cb.services == BTA_ALL_SERVICE_MASK)
+        {
+            p_sdp_rec = NULL;
+            do
+            {
+                tBT_UUID temp_uuid;
+                /* find a service record, report it */
+                p_sdp_rec = SDP_FindServiceInDb_128bit(bta_dm_search_cb.p_sdp_db, p_sdp_rec);
+                if (p_sdp_rec)
+                {
+                    if (SDP_FindServiceUUIDInRec_128bit(p_sdp_rec, &temp_uuid))
+                    {
+                        memcpy(uuid_list[num_uuids], temp_uuid.uu.uuid128, MAX_UUID_SIZE);
+                        num_uuids++;
+                    }
+                }
+            } while (p_sdp_rec);
+        }
+        /* if there are more services to search for */
+        if(bta_dm_search_cb.services_to_search)
+        {
+            /* Free up the p_sdp_db before checking the next one */
+            bta_dm_free_sdp_db(NULL);
+            bta_dm_find_services(bta_dm_search_cb.peer_bdaddr);
+        }
+        else
+        {
+            /* callbacks */
+            /* start next bd_addr if necessary */
+
+            BTM_SecDeleteRmtNameNotifyCallback(&bta_dm_service_search_remname_cback);
+
+            p_msg = (tBTA_DM_MSG *)osi_malloc(sizeof(tBTA_DM_MSG));
+            p_msg->hdr.event = BTA_DM_DISCOVERY_RESULT_EVT;
+            p_msg->disc_result.result.disc_res.result = BTA_SUCCESS;
+            p_msg->disc_result.result.disc_res.p_raw_data = NULL;
+            p_msg->disc_result.result.disc_res.raw_data_size = 0;
+            p_msg->disc_result.result.disc_res.num_uuids = num_uuids;
+            p_msg->disc_result.result.disc_res.p_uuid_list = NULL;
+            if (num_uuids > 0) {
+                p_msg->disc_result.result.disc_res.p_uuid_list =
+                    (UINT8 *)osi_malloc(num_uuids * MAX_UUID_SIZE);
+                memcpy(p_msg->disc_result.result.disc_res.p_uuid_list,
+                       uuid_list, num_uuids * MAX_UUID_SIZE);
+            }
+            // Copy the raw_data to the discovery result structure
+            if (bta_dm_search_cb.p_sdp_db != NULL &&
+                bta_dm_search_cb.p_sdp_db->raw_used != 0 &&
+                bta_dm_search_cb.p_sdp_db->raw_data != NULL) {
+                APPL_TRACE_DEBUG("%s raw_data used = 0x%x raw_data_ptr = 0x%x",
+                                 __func__,
+                                 bta_dm_search_cb.p_sdp_db->raw_used,
+                                 bta_dm_search_cb.p_sdp_db->raw_data);
+
+                p_msg->disc_result.result.disc_res.p_raw_data =
+                    osi_malloc(bta_dm_search_cb.p_sdp_db->raw_used);
+                memcpy(p_msg->disc_result.result.disc_res.p_raw_data,
+                       bta_dm_search_cb.p_sdp_db->raw_data,
+                       bta_dm_search_cb.p_sdp_db->raw_used);
+
+                p_msg->disc_result.result.disc_res.raw_data_size =
+                    bta_dm_search_cb.p_sdp_db->raw_used;
+
+                bta_dm_search_cb.p_sdp_db->raw_data = NULL;     //no need to free this - it is a global assigned.
+                bta_dm_search_cb.p_sdp_db->raw_used = 0;
+                bta_dm_search_cb.p_sdp_db->raw_size = 0;
+            } else {
+                APPL_TRACE_DEBUG("%s raw data size is 0 or raw_data is null!!",
+                                 __func__);
+            }
+            /* Done with p_sdp_db. Free it */
+            bta_dm_free_sdp_db(NULL);
+            p_msg->disc_result.result.disc_res.services = bta_dm_search_cb.services_found;
+
+            // Piggy back the SCN over result field
+            if (scn_found) {
+                p_msg->disc_result.result.disc_res.result = (3 + bta_dm_search_cb.peer_scn);
+                p_msg->disc_result.result.disc_res.services |= BTA_USER_SERVICE_MASK;
+
+                APPL_TRACE_EVENT(" Piggy back the SCN over result field  SCN=%d", bta_dm_search_cb.peer_scn);
+
+            }
+            bdcpy(p_msg->disc_result.result.disc_res.bd_addr,
+                  bta_dm_search_cb.peer_bdaddr);
+            strlcpy((char*)p_msg->disc_result.result.disc_res.bd_name,
+                      bta_dm_get_remname(), BD_NAME_LEN);
+
+            bta_sys_sendmsg(p_msg);
+        }
+    } else {
+        /* conn failed. No need for timer */
+        if(p_data->sdp_event.sdp_result == SDP_CONN_FAILED || p_data->sdp_event.sdp_result == SDP_CONN_REJECTED
+           || p_data->sdp_event.sdp_result == SDP_SECURITY_ERR)
+            bta_dm_search_cb.wait_disc = FALSE;
+
+        /* not able to connect go to next device */
+        if (bta_dm_search_cb.p_sdp_db)
+            osi_free_and_reset((void **)&bta_dm_search_cb.p_sdp_db);
+
+        BTM_SecDeleteRmtNameNotifyCallback(&bta_dm_service_search_remname_cback);
+
+        p_msg = (tBTA_DM_MSG *)osi_malloc(sizeof(tBTA_DM_MSG));
+        p_msg->hdr.event = BTA_DM_DISCOVERY_RESULT_EVT;
+        p_msg->disc_result.result.disc_res.result = BTA_FAILURE;
+        p_msg->disc_result.result.disc_res.services = bta_dm_search_cb.services_found;
+        bdcpy(p_msg->disc_result.result.disc_res.bd_addr,
+              bta_dm_search_cb.peer_bdaddr);
+        strlcpy((char*)p_msg->disc_result.result.disc_res.bd_name,
+                bta_dm_get_remname(), BD_NAME_LEN);
+
+        bta_sys_sendmsg(p_msg);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_search_cmpl
+**
+** Description      Sends event to application
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_dm_search_cmpl(tBTA_DM_MSG *p_data)
+{
+    APPL_TRACE_EVENT("%s", __func__);
+
+#if (BLE_INCLUDED == TRUE && BTA_GATT_INCLUDED == TRUE)
+    osi_free_and_reset((void **)&bta_dm_search_cb.p_srvc_uuid);
+#endif
+
+    if (p_data->hdr.layer_specific == BTA_DM_API_DI_DISCOVER_EVT)
+        bta_dm_di_disc_cmpl(p_data);
+    else
+#ifdef BLUETOOTH_RTK
+    {
+        bta_dm_search_cb.p_search_cback(BTA_DM_DISC_CMPL_EVT, &p_data->disc_result.result);
+        if (bta_dm_search_cb.gatt_disc_active && p_data->disc_result.result.disc_res.result != BTA_SUCCESS)
+        {
+            bta_dm_cancel_gatt_discovery(bta_dm_search_cb.peer_bdaddr);
+        }
+    }
+#else
+        bta_dm_search_cb.p_search_cback(BTA_DM_DISC_CMPL_EVT, NULL);
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_disc_result
+**
+** Description      Service discovery result when discovering services on a device
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_dm_disc_result (tBTA_DM_MSG *p_data)
+{
+    APPL_TRACE_EVENT("%s", __func__);
+
+#if BLE_INCLUDED == TRUE && BTA_GATT_INCLUDED == TRUE
+    /* if any BR/EDR service discovery has been done, report the event */
+    if ((bta_dm_search_cb.services & ((BTA_ALL_SERVICE_MASK | BTA_USER_SERVICE_MASK ) & ~BTA_BLE_SERVICE_MASK)))
+#endif
+    bta_dm_search_cb.p_search_cback(BTA_DM_DISC_RES_EVT, &p_data->disc_result.result);
+
+    tBTA_DM_MSG *p_msg = (tBTA_DM_MSG *)osi_malloc(sizeof(tBTA_DM_MSG));
+
+    /* send a message to change state */
+    p_msg->hdr.event = BTA_DM_SEARCH_CMPL_EVT;
+    p_msg->hdr.layer_specific = BTA_DM_API_DISCOVER_EVT;
+#ifdef BLUETOOTH_RTK
+        memcpy(&p_msg->disc_result.result, &p_data->disc_result.result, sizeof(tBTA_DM_SEARCH));
+#endif
+    bta_sys_sendmsg(p_msg);
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_search_result
+**
+** Description      Service discovery result while searching for devices
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_dm_search_result (tBTA_DM_MSG *p_data)
+{
+    APPL_TRACE_DEBUG("%s searching:0x%04x, result:0x%04x", __func__,
+                       bta_dm_search_cb.services,
+                       p_data->disc_result.result.disc_res.services);
+
+    /* call back if application wants name discovery or found services that application is searching */
+    if (( !bta_dm_search_cb.services )
+      ||(( bta_dm_search_cb.services ) && ( p_data->disc_result.result.disc_res.services )))
+    {
+        bta_dm_search_cb.p_search_cback(BTA_DM_DISC_RES_EVT, &p_data->disc_result.result);
+    }
+
+    /* if searching did not initiate to create link */
+    if(!bta_dm_search_cb.wait_disc )
+    {
+        /* if service searching is done with EIR, don't search next device */
+        if( bta_dm_search_cb.p_btm_inq_info )
+        bta_dm_discover_next_device();
+    }
+    else
+    {
+        /* wait until link is disconnected or timeout */
+        bta_dm_search_cb.sdp_results = TRUE;
+        alarm_set_on_queue(bta_dm_search_cb.search_timer,
+                           1000 * (L2CAP_LINK_INACTIVITY_TOUT + 1),
+                           bta_dm_search_timer_cback, NULL,
+                           btu_bta_alarm_queue);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_search_timer_cback
+**
+** Description      Called when ACL disconnect time is over
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_dm_search_timer_cback(UNUSED_ATTR void *data)
+{
+    APPL_TRACE_EVENT("%s", __func__);
+    bta_dm_search_cb.wait_disc = FALSE;
+
+    /* proceed with next device */
+    bta_dm_discover_next_device();
+
+}
+
+
+/*******************************************************************************
+**
+** Function         bta_dm_free_sdp_db
+**
+** Description      Frees SDP data base
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_dm_free_sdp_db (tBTA_DM_MSG *p_data)
+{
+    UNUSED(p_data);
+    osi_free_and_reset((void **)&bta_dm_search_cb.p_sdp_db);
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_queue_search
+**
+** Description      Queues search command while search is being cancelled
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_dm_queue_search(tBTA_DM_MSG *p_data)
+{
+    osi_free(bta_dm_search_cb.p_search_queue);
+    bta_dm_search_cb.p_search_queue =
+      (tBTA_DM_MSG *)osi_malloc(sizeof(tBTA_DM_API_SEARCH));
+    memcpy(bta_dm_search_cb.p_search_queue, p_data,
+           sizeof(tBTA_DM_API_SEARCH));
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_queue_disc
+**
+** Description      Queues discovery command while search is being cancelled
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_dm_queue_disc(tBTA_DM_MSG *p_data)
+{
+    osi_free(bta_dm_search_cb.p_search_queue);
+    bta_dm_search_cb.p_search_queue =
+        (tBTA_DM_MSG *)osi_malloc(sizeof(tBTA_DM_API_DISCOVER));
+    memcpy(bta_dm_search_cb.p_search_queue, p_data,
+           sizeof(tBTA_DM_API_DISCOVER));
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_search_clear_queue
+**
+** Description      Clears the queue if API search cancel is called
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_dm_search_clear_queue(tBTA_DM_MSG *p_data)
+{
+    UNUSED(p_data);
+    osi_free_and_reset((void **)&bta_dm_search_cb.p_search_queue);
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_search_cancel_cmpl
+**
+** Description      Search cancel is complete
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_dm_search_cancel_cmpl (tBTA_DM_MSG *p_data)
+{
+    UNUSED(p_data);
+    if(bta_dm_search_cb.p_search_queue)
+    {
+        bta_sys_sendmsg(bta_dm_search_cb.p_search_queue);
+        bta_dm_search_cb.p_search_queue = NULL;
+    }
+
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_search_cancel_transac_cmpl
+**
+** Description      Current Service Discovery or remote name procedure is
+**                  completed after search cancellation
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_dm_search_cancel_transac_cmpl(tBTA_DM_MSG *p_data)
+{
+    UNUSED(p_data);
+
+    osi_free_and_reset((void **)&bta_dm_search_cb.p_sdp_db);
+    bta_dm_search_cancel_notify(NULL);
+}
+
+
+/*******************************************************************************
+**
+** Function         bta_dm_search_cancel_notify
+**
+** Description      Notify application that search has been cancelled
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_dm_search_cancel_notify (tBTA_DM_MSG *p_data)
+{
+    UNUSED(p_data);
+    if (bta_dm_search_cb.p_search_cback)
+    {
+        bta_dm_search_cb.p_search_cback(BTA_DM_SEARCH_CANCEL_CMPL_EVT, NULL);
+    }
+    if (!bta_dm_search_cb.name_discover_done)
+    {
+        BTM_CancelRemoteDeviceName();
+    }
+#if (BLE_INCLUDED == TRUE) && (BTA_GATT_INCLUDED == TRUE)
+    if (bta_dm_search_cb.gatt_disc_active)
+    {
+        bta_dm_cancel_gatt_discovery(bta_dm_search_cb.peer_bdaddr);
+    }
+#endif
+
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_find_services
+**
+** Description      Starts discovery on a device
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_dm_find_services ( BD_ADDR bd_addr)
+{
+
+    tSDP_UUID    uuid;
+
+    memset(&uuid, 0, sizeof(tSDP_UUID));
+
+    while(bta_dm_search_cb.service_index < BTA_MAX_SERVICE_ID)
+    {
+        if( bta_dm_search_cb.services_to_search
+            & (tBTA_SERVICE_MASK)(BTA_SERVICE_ID_TO_SERVICE_MASK(bta_dm_search_cb.service_index)))
+        {
+            bta_dm_search_cb.p_sdp_db = (tSDP_DISCOVERY_DB *)osi_malloc(BTA_DM_SDP_DB_SIZE);
+            APPL_TRACE_DEBUG("bta_dm_search_cb.services = %04x***********", bta_dm_search_cb.services);
+            /* try to search all services by search based on L2CAP UUID */
+            if (bta_dm_search_cb.services == BTA_ALL_SERVICE_MASK) {
+                LOG_INFO(LOG_TAG, "%s services_to_search=%08x", __func__,
+                         bta_dm_search_cb.services_to_search);
+                if (bta_dm_search_cb.services_to_search & BTA_RES_SERVICE_MASK) {
+                    uuid.uu.uuid16 = bta_service_id_to_uuid_lkup_tbl[0];
+                    bta_dm_search_cb.services_to_search &= ~BTA_RES_SERVICE_MASK;
+                } else {
+                    uuid.uu.uuid16 = UUID_PROTOCOL_L2CAP;
+                    bta_dm_search_cb.services_to_search = 0;
+                }
+            } else {
+#if BLE_INCLUDED == TRUE && BTA_GATT_INCLUDED == TRUE
+                /* for LE only profile */
+                if (bta_dm_search_cb.service_index == BTA_BLE_SERVICE_ID) {
+                    if (bta_dm_search_cb.uuid_to_search > 0 &&
+                        bta_dm_search_cb.p_srvc_uuid) {
+                        memcpy(&uuid,
+                               (const void *)(bta_dm_search_cb.p_srvc_uuid +
+                                              bta_dm_search_cb.num_uuid -
+                                              bta_dm_search_cb.uuid_to_search),
+                               sizeof(tBT_UUID));
+
+                        bta_dm_search_cb.uuid_to_search--;
+                    } else {
+                        uuid.uu.uuid16 = bta_service_id_to_uuid_lkup_tbl[bta_dm_search_cb.service_index];
+                    }
+
+                    /* last one? clear the BLE service bit if all discovery has been done */
+                    if (bta_dm_search_cb.uuid_to_search == 0)
+                      bta_dm_search_cb.services_to_search &=
+                        (tBTA_SERVICE_MASK)(~(BTA_SERVICE_ID_TO_SERVICE_MASK(bta_dm_search_cb.service_index)));
+
+                } else
+#endif
+                {
+                    /* remove the service from services to be searched  */
+                    bta_dm_search_cb.services_to_search &=
+                        (tBTA_SERVICE_MASK)(~(BTA_SERVICE_ID_TO_SERVICE_MASK(bta_dm_search_cb.service_index)));
+                    uuid.uu.uuid16 = bta_service_id_to_uuid_lkup_tbl[bta_dm_search_cb.service_index];
+                }
+            }
+
+            if (uuid.len == 0)
+                uuid.len = LEN_UUID_16;
+
+            if (bta_dm_search_cb.service_index == BTA_USER_SERVICE_ID) {
+                memcpy(&uuid, &bta_dm_search_cb.uuid, sizeof(tSDP_UUID));
+            }
+
+            LOG_INFO(LOG_TAG, "%s search UUID = %04x", __func__,
+                     uuid.uu.uuid16);
+            SDP_InitDiscoveryDb(bta_dm_search_cb.p_sdp_db, BTA_DM_SDP_DB_SIZE,
+                                1, &uuid, 0, NULL);
+
+            memset(g_disc_raw_data_buf, 0, sizeof(g_disc_raw_data_buf));
+            bta_dm_search_cb.p_sdp_db->raw_data = g_disc_raw_data_buf;
+
+            bta_dm_search_cb.p_sdp_db->raw_size = MAX_DISC_RAW_DATA_BUF;
+
+            if (!SDP_ServiceSearchAttributeRequest(bd_addr, bta_dm_search_cb.p_sdp_db, &bta_dm_sdp_callback)) {
+              /*
+               * If discovery is not successful with this device, then
+               * proceed with the next one.
+               */
+              osi_free_and_reset((void **)&bta_dm_search_cb.p_sdp_db);
+              bta_dm_search_cb.service_index = BTA_MAX_SERVICE_ID;
+
+            } else {
+#if BLE_INCLUDED == TRUE && BTA_GATT_INCLUDED == TRUE
+                if ((bta_dm_search_cb.service_index == BTA_BLE_SERVICE_ID &&
+                     bta_dm_search_cb.uuid_to_search == 0) ||
+                    bta_dm_search_cb.service_index != BTA_BLE_SERVICE_ID)
+#endif
+                    bta_dm_search_cb.service_index++;
+                return;
+            }
+        }
+
+        bta_dm_search_cb.service_index++;
+    }
+
+    /* no more services to be discovered */
+    if (bta_dm_search_cb.service_index >= BTA_MAX_SERVICE_ID) {
+        tBTA_DM_MSG *p_msg = (tBTA_DM_MSG *)osi_malloc(sizeof(tBTA_DM_MSG));
+        p_msg->hdr.event = BTA_DM_DISCOVERY_RESULT_EVT;
+        p_msg->disc_result.result.disc_res.services = bta_dm_search_cb.services_found;
+        bdcpy(p_msg->disc_result.result.disc_res.bd_addr, bta_dm_search_cb.peer_bdaddr);
+        strlcpy((char*)p_msg->disc_result.result.disc_res.bd_name,
+                bta_dm_get_remname(), BD_NAME_LEN);
+
+        bta_sys_sendmsg(p_msg);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_discover_next_device
+**
+** Description      Starts discovery on the next device in Inquiry data base
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_dm_discover_next_device(void)
+{
+    APPL_TRACE_DEBUG("bta_dm_discover_next_device");
+
+    /* searching next device on inquiry result */
+    if((bta_dm_search_cb.p_btm_inq_info = BTM_InqDbNext(bta_dm_search_cb.p_btm_inq_info)) != NULL) {
+        bta_dm_search_cb.name_discover_done = FALSE;
+        bta_dm_search_cb.peer_name[0]       = 0;
+        bta_dm_discover_device(bta_dm_search_cb.p_btm_inq_info->results.remote_bd_addr);
+    } else {
+        tBTA_DM_MSG *p_msg =
+            (tBTA_DM_MSG *)osi_malloc(sizeof(tBTA_DM_MSG));
+
+        /* no devices, search complete */
+        bta_dm_search_cb.services = 0;
+
+        p_msg->hdr.event = BTA_DM_SEARCH_CMPL_EVT;
+        p_msg->hdr.layer_specific = BTA_DM_API_DISCOVER_EVT;
+
+        bta_sys_sendmsg(p_msg);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_discover_device
+**
+** Description      Starts name and service discovery on the device
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_dm_discover_device(BD_ADDR remote_bd_addr)
+{
+    tBT_TRANSPORT transport = BT_TRANSPORT_BR_EDR;
+
+#if BLE_INCLUDED == TRUE
+    if (bta_dm_search_cb.transport == BTA_TRANSPORT_UNKNOWN)
+    {
+        tBT_DEVICE_TYPE dev_type;
+        tBLE_ADDR_TYPE  addr_type;
+
+        BTM_ReadDevInfo(remote_bd_addr, &dev_type, &addr_type);
+        if (dev_type == BT_DEVICE_TYPE_BLE || addr_type == BLE_ADDR_RANDOM)
+            transport = BT_TRANSPORT_LE;
+    } else {
+        transport = bta_dm_search_cb.transport;
+    }
+#endif
+
+    /* Reset transport state for next discovery */
+    bta_dm_search_cb.transport = BTA_TRANSPORT_UNKNOWN;
+
+    APPL_TRACE_DEBUG("%s BDA:0x%02X%02X%02X%02X%02X%02X", __func__,
+                        remote_bd_addr[0],remote_bd_addr[1],
+                        remote_bd_addr[2],remote_bd_addr[3],
+                        remote_bd_addr[4],remote_bd_addr[5]);
+
+    bdcpy(bta_dm_search_cb.peer_bdaddr, remote_bd_addr);
+
+    APPL_TRACE_DEBUG("%s name_discover_done = %d p_btm_inq_info 0x%x state = %d, transport=%d",
+                        __func__,
+                        bta_dm_search_cb.name_discover_done,
+                        bta_dm_search_cb.p_btm_inq_info,
+                        bta_dm_search_cb.state,
+                        transport);
+
+    if (bta_dm_search_cb.p_btm_inq_info)
+    {
+        APPL_TRACE_DEBUG("%s appl_knows_rem_name %d", __func__,
+                            bta_dm_search_cb.p_btm_inq_info->appl_knows_rem_name);
+    }
+#if (defined(BLE_INCLUDED) && BLE_INCLUDED == TRUE)
+    if((bta_dm_search_cb.p_btm_inq_info)
+       && (bta_dm_search_cb.p_btm_inq_info->results.device_type == BT_DEVICE_TYPE_BLE)
+       && (bta_dm_search_cb.state == BTA_DM_SEARCH_ACTIVE))
+    {
+        /* Do not perform RNR for LE devices at inquiry complete*/
+        bta_dm_search_cb.name_discover_done = TRUE;
+    }
+#endif
+    /* if name discovery is not done and application needs remote name */
+    if ((!bta_dm_search_cb.name_discover_done)
+       && (( bta_dm_search_cb.p_btm_inq_info == NULL )
+            ||(bta_dm_search_cb.p_btm_inq_info && (!bta_dm_search_cb.p_btm_inq_info->appl_knows_rem_name))))
+    {
+#ifdef BLUETOOTH_RTK
+         if(bta_dm_search_cb.p_btm_inq_info != NULL)
+         {
+             APPL_TRACE_DEBUG("RSSI: %d", bta_dm_search_cb.p_btm_inq_info->results.rssi);
+         }
+         if(bta_dm_search_cb.p_btm_inq_info != NULL&&bta_dm_search_cb.p_btm_inq_info->results.rssi < gRssiThresholdForRemoteName)
+         {
+             /* not req remote name */
+             APPL_TRACE_DEBUG("RSSI is too low, device is far away, not ask remote name");
+             bta_dm_search_cb.name_discover_done = TRUE;
+         }
+         else
+         {
+#endif
+        if (bta_dm_read_remote_device_name(bta_dm_search_cb.peer_bdaddr, transport) == TRUE)
+            return;
+
+        /* starting name discovery failed */
+        bta_dm_search_cb.name_discover_done = TRUE;
+#ifdef BLUETOOTH_RTK
+         }
+#endif
+
+    }
+
+    /* if application wants to discover service */
+    if ( bta_dm_search_cb.services )
+    {
+        /* initialize variables */
+        bta_dm_search_cb.service_index      = 0;
+        bta_dm_search_cb.services_found     = 0;
+        bta_dm_search_cb.services_to_search = bta_dm_search_cb.services;
+#if BLE_INCLUDED == TRUE && BTA_GATT_INCLUDED == TRUE
+        bta_dm_search_cb.uuid_to_search     = bta_dm_search_cb.num_uuid;
+#endif
+        if ((bta_dm_search_cb.p_btm_inq_info != NULL) &&
+            bta_dm_search_cb.services != BTA_USER_SERVICE_MASK
+            &&(bta_dm_search_cb.sdp_search == FALSE))
+        {
+            /* check if EIR provides the information of supported services */
+            bta_dm_eir_search_services( &bta_dm_search_cb.p_btm_inq_info->results,
+                                        &bta_dm_search_cb.services_to_search,
+                                        &bta_dm_search_cb.services_found );
+        }
+
+        /* if seaching with EIR is not completed */
+        if(bta_dm_search_cb.services_to_search)
+        {
+            /* check whether connection already exists to the device
+               if connection exists, we don't have to wait for ACL
+               link to go down to start search on next device */
+            if (BTM_IsAclConnectionUp(bta_dm_search_cb.peer_bdaddr, BT_TRANSPORT_BR_EDR))
+                bta_dm_search_cb.wait_disc = FALSE;
+            else
+                bta_dm_search_cb.wait_disc = TRUE;
+
+#if (BLE_INCLUDED == TRUE && (defined BTA_GATT_INCLUDED) && (BTA_GATT_INCLUDED == TRUE))
+            if ( bta_dm_search_cb.p_btm_inq_info )
+            {
+                APPL_TRACE_DEBUG("%s p_btm_inq_info 0x%x results.device_type 0x%x services_to_search 0x%x",
+                                    __func__,
+                                    bta_dm_search_cb.p_btm_inq_info,
+                                    bta_dm_search_cb.p_btm_inq_info->results.device_type,
+                                    bta_dm_search_cb.services_to_search);
+            }
+
+            if (transport == BT_TRANSPORT_LE)
+            {
+                if (bta_dm_search_cb.services_to_search & BTA_BLE_SERVICE_MASK)
+                {
+                    //set the raw data buffer here
+                    memset(g_disc_raw_data_buf, 0, sizeof(g_disc_raw_data_buf));
+                    bta_dm_search_cb.p_ble_rawdata = g_disc_raw_data_buf;
+
+                    bta_dm_search_cb.ble_raw_size = MAX_DISC_RAW_DATA_BUF;
+                    bta_dm_search_cb.ble_raw_used = 0;
+
+                    /* start GATT for service discovery */
+                    btm_dm_start_gatt_discovery(bta_dm_search_cb.peer_bdaddr);
+                    return;
+                }
+            }
+            else
+#endif
+            {
+                bta_dm_search_cb.sdp_results = FALSE;
+                bta_dm_find_services(bta_dm_search_cb.peer_bdaddr);
+                return;
+            }
+        }
+    }
+
+    /* name discovery and service discovery are done for this device */
+    tBTA_DM_MSG *p_msg = (tBTA_DM_MSG *)osi_malloc(sizeof(tBTA_DM_MSG));
+    p_msg->hdr.event = BTA_DM_DISCOVERY_RESULT_EVT;
+    /* initialize the data structure - includes p_raw_data and raw_data_size */
+    memset(&(p_msg->disc_result.result), 0, sizeof(tBTA_DM_DISC_RES));
+    p_msg->disc_result.result.disc_res.result = BTA_SUCCESS;
+    p_msg->disc_result.result.disc_res.services = bta_dm_search_cb.services_found;
+    bdcpy(p_msg->disc_result.result.disc_res.bd_addr, bta_dm_search_cb.peer_bdaddr);
+    strlcpy((char*)p_msg->disc_result.result.disc_res.bd_name,
+            (char*)bta_dm_search_cb.peer_name, BD_NAME_LEN);
+
+    bta_sys_sendmsg(p_msg);
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_sdp_callback
+**
+** Description      Callback from sdp with discovery status
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_dm_sdp_callback (UINT16 sdp_status)
+{
+
+    tBTA_DM_SDP_RESULT *p_msg =
+        (tBTA_DM_SDP_RESULT *)osi_malloc(sizeof(tBTA_DM_SDP_RESULT));
+
+    p_msg->hdr.event = BTA_DM_SDP_RESULT_EVT;
+    p_msg->sdp_result = sdp_status;
+
+    bta_sys_sendmsg(p_msg);
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_inq_results_cb
+**
+** Description      Inquiry results callback from BTM
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_dm_inq_results_cb (tBTM_INQ_RESULTS *p_inq, UINT8 *p_eir)
+{
+
+    tBTA_DM_SEARCH     result;
+    tBTM_INQ_INFO      *p_inq_info;
+    UINT16             service_class;
+
+    bdcpy(result.inq_res.bd_addr, p_inq->remote_bd_addr);
+    memcpy(result.inq_res.dev_class, p_inq->dev_class, DEV_CLASS_LEN);
+    BTM_COD_SERVICE_CLASS(service_class, p_inq->dev_class);
+    result.inq_res.is_limited = (service_class & BTM_COD_SERVICE_LMTD_DISCOVER)?TRUE:FALSE;
+    result.inq_res.rssi = p_inq->rssi;
+
+#if (BLE_INCLUDED == TRUE)
+    result.inq_res.ble_addr_type    = p_inq->ble_addr_type;
+    result.inq_res.inq_result_type  = p_inq->inq_result_type;
+    result.inq_res.device_type      = p_inq->device_type;
+    result.inq_res.flag             = p_inq->flag;
+#endif
+
+    /* application will parse EIR to find out remote device name */
+    result.inq_res.p_eir = p_eir;
+
+    if((p_inq_info = BTM_InqDbRead(p_inq->remote_bd_addr)) != NULL)
+    {
+        /* initialize remt_name_not_required to FALSE so that we get the name by default */
+        result.inq_res.remt_name_not_required = FALSE;
+
+    }
+
+    if(bta_dm_search_cb.p_search_cback)
+        bta_dm_search_cb.p_search_cback(BTA_DM_INQ_RES_EVT, &result);
+
+    if(p_inq_info)
+    {
+        /* application indicates if it knows the remote name, inside the callback
+         copy that to the inquiry data base*/
+        if(result.inq_res.remt_name_not_required)
+            p_inq_info->appl_knows_rem_name = TRUE;
+
+    }
+
+
+}
+
+
+/*******************************************************************************
+**
+** Function         bta_dm_inq_cmpl_cb
+**
+** Description      Inquiry complete callback from BTM
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_dm_inq_cmpl_cb (void * p_result)
+{
+    tBTA_DM_MSG *p_msg = (tBTA_DM_MSG *)osi_malloc(sizeof(tBTA_DM_MSG));
+
+    APPL_TRACE_DEBUG("%s", __func__);
+
+    if (bta_dm_search_cb.cancel_pending == FALSE) {
+        p_msg->inq_cmpl.hdr.event = BTA_DM_INQUIRY_CMPL_EVT;
+        p_msg->inq_cmpl.num = ((tBTM_INQUIRY_CMPL *)p_result)->num_resp;
+    } else {
+        bta_dm_search_cb.cancel_pending = FALSE;
+        bta_dm_search_cancel_notify(NULL);
+        p_msg->hdr.event = BTA_DM_SEARCH_CMPL_EVT;
+        p_msg->hdr.layer_specific = BTA_DM_API_DISCOVER_EVT;
+    }
+
+    bta_sys_sendmsg(p_msg);
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_service_search_remname_cback
+**
+** Description      Remote name call back from BTM during service discovery
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_dm_service_search_remname_cback (BD_ADDR bd_addr, DEV_CLASS dc, BD_NAME bd_name)
+{
+    tBTM_REMOTE_DEV_NAME    rem_name;
+    tBTM_STATUS             btm_status;
+    UNUSED(dc);
+
+    APPL_TRACE_DEBUG("bta_dm_service_search_remname_cback name=<%s>", bd_name);
+
+    /* if this is what we are looking for */
+    if (!bdcmp( bta_dm_search_cb.peer_bdaddr, bd_addr))
+    {
+        rem_name.length = strlen((char*)bd_name);
+        if (rem_name.length > (BD_NAME_LEN-1))
+        {
+            rem_name.length = (BD_NAME_LEN-1);
+            rem_name.remote_bd_name[(BD_NAME_LEN-1)] = 0;
+        }
+        strlcpy((char*)rem_name.remote_bd_name, (char*)bd_name, BD_NAME_LEN);
+        rem_name.status = BTM_SUCCESS;
+
+        bta_dm_remname_cback(&rem_name);
+    }
+    else
+    {
+        /* get name of device */
+        btm_status = BTM_ReadRemoteDeviceName (bta_dm_search_cb.peer_bdaddr,
+                                                (tBTM_CMPL_CB *) bta_dm_remname_cback,
+                                                BT_TRANSPORT_BR_EDR);
+        if ( btm_status == BTM_BUSY )
+        {
+            /* wait for next chance(notification of remote name discovery done) */
+            APPL_TRACE_DEBUG("bta_dm_service_search_remname_cback: BTM_ReadRemoteDeviceName is busy");
+        }
+        else if ( btm_status != BTM_CMD_STARTED )
+        {
+            /* if failed to start getting remote name then continue */
+            APPL_TRACE_WARNING("bta_dm_service_search_remname_cback: BTM_ReadRemoteDeviceName returns 0x%02X", btm_status);
+
+            rem_name.length = 0;
+            rem_name.remote_bd_name[0] = 0;
+            rem_name.status = btm_status;
+            bta_dm_remname_cback(&rem_name);
+        }
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         bta_dm_remname_cback
+**
+** Description      Remote name complete call back from BTM
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_dm_remname_cback (tBTM_REMOTE_DEV_NAME *p_remote_name)
+{
+    APPL_TRACE_DEBUG("bta_dm_remname_cback len = %d name=<%s>", p_remote_name->length,
+                      p_remote_name->remote_bd_name);
+
+    /* remote name discovery is done but it could be failed */
+    bta_dm_search_cb.name_discover_done = TRUE;
+    strlcpy((char*)bta_dm_search_cb.peer_name,
+            (char*)p_remote_name->remote_bd_name, BD_NAME_LEN);
+
+    BTM_SecDeleteRmtNameNotifyCallback(&bta_dm_service_search_remname_cback);
+
+#if BLE_INCLUDED == TRUE
+#ifdef BLUETOOTH_RTK
+    if (BTM_UseLeLink(bta_dm_search_cb.peer_bdaddr))
+#else
+    if (bta_dm_search_cb.transport == BT_TRANSPORT_LE )
+#endif
+    {
+        GAP_BleReadPeerPrefConnParams (bta_dm_search_cb.peer_bdaddr);
+    }
+#endif
+
+    tBTA_DM_REM_NAME *p_msg =
+        (tBTA_DM_REM_NAME *)osi_malloc(sizeof(tBTA_DM_REM_NAME));
+    bdcpy(p_msg->result.disc_res.bd_addr, bta_dm_search_cb.peer_bdaddr);
+    strlcpy((char*)p_msg->result.disc_res.bd_name,
+            (char*)p_remote_name->remote_bd_name, BD_NAME_LEN);
+    p_msg->hdr.event = BTA_DM_REMT_NAME_EVT;
+
+    bta_sys_sendmsg(p_msg);
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_authorize_cback
+**
+** Description      cback requesting authorization
+**
+** Returns          void
+**
+*******************************************************************************/
+static UINT8 bta_dm_authorize_cback (BD_ADDR bd_addr, DEV_CLASS dev_class, BD_NAME bd_name,
+                                     UINT8 *service_name, UINT8 service_id, BOOLEAN is_originator)
+{
+    tBTA_DM_SEC sec_event;
+    UINT8       index = 1;
+    UNUSED(service_name);
+    UNUSED(is_originator);
+
+    bdcpy(sec_event.authorize.bd_addr, bd_addr);
+    memcpy(sec_event.authorize.dev_class, dev_class, DEV_CLASS_LEN);
+    strlcpy((char*)sec_event.authorize.bd_name, (char*)bd_name, BD_NAME_LEN);
+
+#if ( defined(BTA_JV_INCLUDED) && BTA_JV_INCLUDED == TRUE )
+    sec_event.authorize.service = service_id;
+#endif
+
+    while(index < BTA_MAX_SERVICE_ID)
+    {
+        /* get the BTA service id corresponding to BTM id */
+        if(bta_service_id_to_btm_srv_id_lkup_tbl[index] == service_id)
+        {
+            sec_event.authorize.service = index;
+            break;
+        }
+        index++;
+    }
+
+
+    /* if supported service callback otherwise not authorized */
+    if(bta_dm_cb.p_sec_cback && (index < BTA_MAX_SERVICE_ID
+#if ( defined(BTA_JV_INCLUDED) && BTA_JV_INCLUDED == TRUE )
+        /* pass through JV service ID */
+        || (service_id >= BTA_FIRST_JV_SERVICE_ID && service_id <= BTA_LAST_JV_SERVICE_ID)
+#endif
+        ))
+    {
+        bta_dm_cb.p_sec_cback(BTA_DM_AUTHORIZE_EVT, &sec_event);
+        return BTM_CMD_STARTED;
+    }
+    else
+    {
+        return BTM_NOT_AUTHORIZED;
+    }
+}
+
+
+
+
+
+/*******************************************************************************
+**
+** Function         bta_dm_pinname_cback
+**
+** Description      Callback requesting pin_key
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_dm_pinname_cback (void *p_data)
+{
+    tBTM_REMOTE_DEV_NAME *p_result = (tBTM_REMOTE_DEV_NAME *)p_data;
+    tBTA_DM_SEC           sec_event;
+    UINT32                bytes_to_copy;
+    tBTA_DM_SEC_EVT       event = bta_dm_cb.pin_evt;
+
+#ifdef BLUETOOTH_RTK
+    memset(&sec_event, 0x0, sizeof(tBTA_DM_SEC));
+#endif
+    if (BTA_DM_SP_CFM_REQ_EVT == event)
+    {
+        /* Retrieved saved device class and bd_addr */
+        bdcpy(sec_event.cfm_req.bd_addr, bta_dm_cb.pin_bd_addr);
+        BTA_COPY_DEVICE_CLASS(sec_event.cfm_req.dev_class, bta_dm_cb.pin_dev_class);
+
+        if (p_result && p_result->status == BTM_SUCCESS)
+        {
+            bytes_to_copy = (p_result->length < (BD_NAME_LEN-1))
+            ? p_result->length : (BD_NAME_LEN-1);
+            memcpy(sec_event.cfm_req.bd_name, p_result->remote_bd_name, bytes_to_copy);
+            sec_event.pin_req.bd_name[BD_NAME_LEN-1] = 0;
+        }
+        else    /* No name found */
+            sec_event.cfm_req.bd_name[0] = 0;
+
+        sec_event.key_notif.passkey    = bta_dm_cb.num_val; /* get PIN code numeric number */
+
+        /* 1 additional event data fields for this event */
+        sec_event.cfm_req.just_works = bta_dm_cb.just_works;
+    }
+    else
+    {
+        /* Retrieved saved device class and bd_addr */
+        bdcpy(sec_event.pin_req.bd_addr, bta_dm_cb.pin_bd_addr);
+        BTA_COPY_DEVICE_CLASS(sec_event.pin_req.dev_class, bta_dm_cb.pin_dev_class);
+
+        if (p_result && p_result->status == BTM_SUCCESS)
+        {
+            bytes_to_copy = (p_result->length < (BD_NAME_LEN-1))
+            ? p_result->length : (BD_NAME_LEN-1);
+            memcpy(sec_event.pin_req.bd_name, p_result->remote_bd_name, bytes_to_copy);
+            sec_event.pin_req.bd_name[BD_NAME_LEN-1] = 0;
+        }
+        else    /* No name found */
+            sec_event.pin_req.bd_name[0] = 0;
+
+        event = bta_dm_cb.pin_evt;
+        sec_event.key_notif.passkey    = bta_dm_cb.num_val; /* get PIN code numeric number */
+    }
+
+    if( bta_dm_cb.p_sec_cback )
+        bta_dm_cb.p_sec_cback(event, &sec_event);
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_pin_cback
+**
+** Description      Callback requesting pin_key
+**
+** Returns          void
+**
+*******************************************************************************/
+static UINT8 bta_dm_pin_cback (BD_ADDR bd_addr, DEV_CLASS dev_class, BD_NAME bd_name,
+        BOOLEAN min_16_digit)
+{
+    tBTA_DM_SEC sec_event;
+
+    if (!bta_dm_cb.p_sec_cback)
+        return BTM_NOT_AUTHORIZED;
+
+    /* If the device name is not known, save bdaddr and devclass and initiate a name request */
+    if (bd_name[0] == 0)
+    {
+        bta_dm_cb.pin_evt = BTA_DM_PIN_REQ_EVT;
+        bdcpy(bta_dm_cb.pin_bd_addr, bd_addr);
+        BTA_COPY_DEVICE_CLASS(bta_dm_cb.pin_dev_class, dev_class);
+        if ((BTM_ReadRemoteDeviceName(bd_addr, bta_dm_pinname_cback, BT_TRANSPORT_BR_EDR)) == BTM_CMD_STARTED)
+            return BTM_CMD_STARTED;
+
+        APPL_TRACE_WARNING(" bta_dm_pin_cback() -> Failed to start Remote Name Request  ");
+    }
+
+    bdcpy(sec_event.pin_req.bd_addr, bd_addr);
+    BTA_COPY_DEVICE_CLASS(sec_event.pin_req.dev_class, dev_class);
+    strlcpy((char*)sec_event.pin_req.bd_name, (char*)bd_name, BD_NAME_LEN);
+    sec_event.pin_req.min_16_digit = min_16_digit;
+
+    bta_dm_cb.p_sec_cback(BTA_DM_PIN_REQ_EVT, &sec_event);
+    return BTM_CMD_STARTED;
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_new_link_key_cback
+**
+** Description      Callback from BTM to notify new link key
+**
+** Returns          void
+**
+*******************************************************************************/
+static UINT8  bta_dm_new_link_key_cback(BD_ADDR bd_addr, DEV_CLASS dev_class,
+                                        BD_NAME bd_name, LINK_KEY key, UINT8 key_type)
+{
+    tBTA_DM_SEC sec_event;
+    tBTA_DM_AUTH_CMPL *p_auth_cmpl;
+    UINT8             event;
+    UNUSED(dev_class);
+
+    memset (&sec_event, 0, sizeof(tBTA_DM_SEC));
+
+    /* Not AMP Key type */
+    if (key_type != HCI_LKEY_TYPE_AMP_WIFI && key_type != HCI_LKEY_TYPE_AMP_UWB)
+    {
+        event = BTA_DM_AUTH_CMPL_EVT;
+        p_auth_cmpl = &sec_event.auth_cmpl;
+
+        bdcpy(p_auth_cmpl->bd_addr, bd_addr);
+
+        memcpy(p_auth_cmpl->bd_name, bd_name, (BD_NAME_LEN-1));
+        p_auth_cmpl->bd_name[BD_NAME_LEN-1] = 0;
+
+        p_auth_cmpl->key_present = TRUE;
+        p_auth_cmpl->key_type = key_type;
+        p_auth_cmpl->success = TRUE;
+
+        memcpy(p_auth_cmpl->key, key, LINK_KEY_LEN);
+        sec_event.auth_cmpl.fail_reason = HCI_SUCCESS;
+
+#if BLE_INCLUDED == TRUE
+        // Report the BR link key based on the BR/EDR address and type
+        BTM_ReadDevInfo(bd_addr, &sec_event.auth_cmpl.dev_type, &sec_event.auth_cmpl.addr_type);
+#endif
+        if(bta_dm_cb.p_sec_cback)
+            bta_dm_cb.p_sec_cback(event, &sec_event);
+
+        // Setting remove_dev_pending flag to FALSE, where it will avoid deleting the
+        // security device record when the ACL connection link goes down in case of
+        // reconnection.
+        if (bta_dm_cb.device_list.count)
+            bta_dm_reset_sec_dev_pending(p_auth_cmpl->bd_addr);
+    }
+    else
+    {
+        APPL_TRACE_WARNING("%s() Received AMP Key", __func__);
+    }
+
+    return BTM_CMD_STARTED;
+}
+
+
+/*******************************************************************************
+**
+** Function         bta_dm_authentication_complete_cback
+**
+** Description      Authentication complete callback from BTM
+**
+** Returns          void
+**
+*******************************************************************************/
+static UINT8 bta_dm_authentication_complete_cback(BD_ADDR bd_addr, DEV_CLASS dev_class,BD_NAME bd_name, int result)
+{
+    tBTA_DM_SEC sec_event;
+    UNUSED(dev_class);
+
+    if(result != BTM_SUCCESS)
+    {
+        memset(&sec_event, 0, sizeof(tBTA_DM_SEC));
+        bdcpy(sec_event.auth_cmpl.bd_addr, bd_addr);
+
+        memcpy(sec_event.auth_cmpl.bd_name, bd_name, (BD_NAME_LEN-1));
+        sec_event.auth_cmpl.bd_name[BD_NAME_LEN-1] = 0;
+
+#if BLE_INCLUDED == TRUE
+        // Report the BR link key based on the BR/EDR address and type
+        BTM_ReadDevInfo(bd_addr, &sec_event.auth_cmpl.dev_type, &sec_event.auth_cmpl.addr_type);
+#endif
+        sec_event.auth_cmpl.fail_reason = (UINT8)result;
+
+        if(bta_dm_cb.p_sec_cback)
+            bta_dm_cb.p_sec_cback(BTA_DM_AUTH_CMPL_EVT, &sec_event);
+
+        bta_dm_remove_sec_dev_entry(bd_addr);
+    }
+
+    return BTM_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_sp_cback
+**
+** Description      simple pairing callback from BTM
+**
+** Returns          void
+**
+*******************************************************************************/
+static UINT8 bta_dm_sp_cback (tBTM_SP_EVT event, tBTM_SP_EVT_DATA *p_data)
+{
+    tBTM_STATUS status = BTM_CMD_STARTED;
+    tBTA_DM_SEC sec_event;
+    tBTA_DM_SEC_EVT pin_evt = BTA_DM_SP_KEY_NOTIF_EVT;
+
+    APPL_TRACE_EVENT("bta_dm_sp_cback: %d", event);
+    if (!bta_dm_cb.p_sec_cback)
+        return BTM_NOT_AUTHORIZED;
+
+    /* TODO_SP */
+    switch(event)
+    {
+    case BTM_SP_IO_REQ_EVT:
+#if (BTM_LOCAL_IO_CAPS != BTM_IO_CAP_NONE)
+        /* translate auth_req */
+        bta_dm_co_io_req(p_data->io_req.bd_addr, &p_data->io_req.io_cap,
+            &p_data->io_req.oob_data, &p_data->io_req.auth_req, p_data->io_req.is_orig);
+#endif
+        APPL_TRACE_EVENT("io mitm: %d oob_data:%d", p_data->io_req.auth_req, p_data->io_req.oob_data);
+        break;
+    case BTM_SP_IO_RSP_EVT:
+#if (BTM_LOCAL_IO_CAPS != BTM_IO_CAP_NONE)
+        bta_dm_co_io_rsp(p_data->io_rsp.bd_addr, p_data->io_rsp.io_cap,
+                         p_data->io_rsp.oob_data, p_data->io_rsp.auth_req );
+#endif
+        break;
+
+    case BTM_SP_CFM_REQ_EVT:
+        pin_evt = BTA_DM_SP_CFM_REQ_EVT;
+        bta_dm_cb.just_works = sec_event.cfm_req.just_works = p_data->cfm_req.just_works;
+        sec_event.cfm_req.loc_auth_req = p_data->cfm_req.loc_auth_req;
+        sec_event.cfm_req.rmt_auth_req = p_data->cfm_req.rmt_auth_req;
+        sec_event.cfm_req.loc_io_caps = p_data->cfm_req.loc_io_caps;
+        sec_event.cfm_req.rmt_io_caps = p_data->cfm_req.rmt_io_caps;
+
+        /* continue to next case */
+#if (BTM_LOCAL_IO_CAPS != BTM_IO_CAP_NONE)
+    /* Passkey entry mode, mobile device with output capability is very
+        unlikely to receive key request, so skip this event */
+    /*case BTM_SP_KEY_REQ_EVT: */
+    case BTM_SP_KEY_NOTIF_EVT:
+#endif
+        if(BTM_SP_CFM_REQ_EVT == event)
+        {
+          /* Due to the switch case falling through below to BTM_SP_KEY_NOTIF_EVT,
+             call remote name request using values from cfm_req */
+          if(p_data->cfm_req.bd_name[0] == 0)
+          {
+              bta_dm_cb.pin_evt = pin_evt;
+              bdcpy(bta_dm_cb.pin_bd_addr, p_data->cfm_req.bd_addr);
+              BTA_COPY_DEVICE_CLASS(bta_dm_cb.pin_dev_class, p_data->cfm_req.dev_class);
+              if ((BTM_ReadRemoteDeviceName(p_data->cfm_req.bd_addr, bta_dm_pinname_cback,
+                         BT_TRANSPORT_BR_EDR)) == BTM_CMD_STARTED)
+                  return BTM_CMD_STARTED;
+              APPL_TRACE_WARNING(" bta_dm_sp_cback() -> Failed to start Remote Name Request  ");
+          }
+          else
+          {
+              /* Due to the switch case falling through below to BTM_SP_KEY_NOTIF_EVT,
+                 copy these values into key_notif from cfm_req */
+              bdcpy(sec_event.key_notif.bd_addr, p_data->cfm_req.bd_addr);
+              BTA_COPY_DEVICE_CLASS(sec_event.key_notif.dev_class, p_data->cfm_req.dev_class);
+              strlcpy((char*)sec_event.key_notif.bd_name,
+                      (char*)p_data->cfm_req.bd_name, BD_NAME_LEN);
+           }
+        }
+
+        bta_dm_cb.num_val = sec_event.key_notif.passkey = p_data->key_notif.passkey;
+        if (BTM_SP_KEY_NOTIF_EVT == event)
+        {
+            /* If the device name is not known, save bdaddr and devclass
+               and initiate a name request with values from key_notif */
+            if(p_data->key_notif.bd_name[0] == 0)
+            {
+                bta_dm_cb.pin_evt = pin_evt;
+                bdcpy(bta_dm_cb.pin_bd_addr, p_data->key_notif.bd_addr);
+                BTA_COPY_DEVICE_CLASS(bta_dm_cb.pin_dev_class, p_data->key_notif.dev_class);
+                if ((BTM_ReadRemoteDeviceName(p_data->key_notif.bd_addr, bta_dm_pinname_cback,
+                         BT_TRANSPORT_BR_EDR)) == BTM_CMD_STARTED)
+                return BTM_CMD_STARTED;
+                APPL_TRACE_WARNING(" bta_dm_sp_cback() -> Failed to start Remote Name Request  ");
+            }
+            else
+            {
+                bdcpy(sec_event.key_notif.bd_addr, p_data->key_notif.bd_addr);
+                BTA_COPY_DEVICE_CLASS(sec_event.key_notif.dev_class, p_data->key_notif.dev_class);
+                strlcpy((char*)sec_event.key_notif.bd_name,
+                        (char*)p_data->key_notif.bd_name, BD_NAME_LEN);
+                sec_event.key_notif.bd_name[BD_NAME_LEN-1] = 0;
+            }
+        }
+
+        bta_dm_cb.p_sec_cback(pin_evt, &sec_event);
+
+        break;
+
+    case BTM_SP_LOC_OOB_EVT:
+        bta_dm_co_loc_oob((BOOLEAN)(p_data->loc_oob.status == BTM_SUCCESS),
+            p_data->loc_oob.c, p_data->loc_oob.r);
+        break;
+
+    case BTM_SP_RMT_OOB_EVT:
+        /* If the device name is not known, save bdaddr and devclass and initiate a name request */
+        if (p_data->rmt_oob.bd_name[0] == 0)
+        {
+             bta_dm_cb.pin_evt = BTA_DM_SP_RMT_OOB_EVT;
+             bdcpy(bta_dm_cb.pin_bd_addr, p_data->rmt_oob.bd_addr);
+             BTA_COPY_DEVICE_CLASS(bta_dm_cb.pin_dev_class, p_data->rmt_oob.dev_class);
+             if ((BTM_ReadRemoteDeviceName(p_data->rmt_oob.bd_addr, bta_dm_pinname_cback,
+                      BT_TRANSPORT_BR_EDR)) == BTM_CMD_STARTED)
+             return BTM_CMD_STARTED;
+             APPL_TRACE_WARNING(" bta_dm_sp_cback() -> Failed to start Remote Name Request  ");
+        }
+
+        bdcpy(sec_event.rmt_oob.bd_addr, p_data->rmt_oob.bd_addr);
+        BTA_COPY_DEVICE_CLASS(sec_event.rmt_oob.dev_class, p_data->rmt_oob.dev_class);
+        strlcpy((char*)sec_event.rmt_oob.bd_name, (char*)p_data->rmt_oob.bd_name, BD_NAME_LEN);
+
+        bta_dm_cb.p_sec_cback(BTA_DM_SP_RMT_OOB_EVT, &sec_event);
+
+        bta_dm_co_rmt_oob(p_data->rmt_oob.bd_addr);
+        break;
+
+    case BTM_SP_COMPLT_EVT:
+        /* do not report this event - handled by link_key_callback or auth_complete_callback */
+        break;
+
+    case BTM_SP_KEYPRESS_EVT:
+        memcpy(&sec_event.key_press, &p_data->key_press, sizeof(tBTM_SP_KEYPRESS));
+        bta_dm_cb.p_sec_cback(BTA_DM_SP_KEYPRESS_EVT, &sec_event);
+        break;
+
+    case BTM_SP_UPGRADE_EVT:
+        bta_dm_co_lk_upgrade(p_data->upgrade.bd_addr, &p_data->upgrade.upgrade );
+        break;
+
+    default:
+        status = BTM_NOT_AUTHORIZED;
+        break;
+    }
+    APPL_TRACE_EVENT("dm status: %d", status);
+    return status;
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_local_name_cback
+**
+** Description      Callback from btm after local name is read
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_dm_local_name_cback(UINT8 *p_name)
+{
+    tBTA_DM_SEC sec_event;
+    UNUSED(p_name);
+
+    sec_event.enable.status = BTA_SUCCESS;
+
+    if(bta_dm_cb.p_sec_cback)
+        bta_dm_cb.p_sec_cback(BTA_DM_ENABLE_EVT, &sec_event);
+
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_bl_change_cback
+**
+** Description      Callback from btm when acl connection goes up or down
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_dm_bl_change_cback (tBTM_BL_EVENT_DATA *p_data)
+{
+    tBTA_DM_ACL_CHANGE *p_msg =
+        (tBTA_DM_ACL_CHANGE *)osi_malloc(sizeof(tBTA_DM_ACL_CHANGE));
+
+    p_msg->event = p_data->event;
+    p_msg->is_new = FALSE;
+
+    switch (p_msg->event) {
+    case BTM_BL_CONN_EVT:
+        p_msg->is_new = TRUE;
+        bdcpy(p_msg->bd_addr, p_data->conn.p_bda);
+#if BLE_INCLUDED == TRUE
+        p_msg->transport = p_data->conn.transport;
+        p_msg->handle = p_data->conn.handle;
+#endif
+        break;
+    case BTM_BL_DISCN_EVT:
+        bdcpy(p_msg->bd_addr, p_data->discn.p_bda);
+#if BLE_INCLUDED == TRUE
+        p_msg->transport = p_data->discn.transport;
+        p_msg->handle = p_data->discn.handle;
+#endif
+        break;
+    case BTM_BL_UPDATE_EVT:
+        p_msg->busy_level = p_data->update.busy_level;
+        p_msg->busy_level_flags = p_data->update.busy_level_flags;
+        break;
+    case BTM_BL_ROLE_CHG_EVT:
+        p_msg->new_role = p_data->role_chg.new_role;
+        p_msg->hci_status = p_data->role_chg.hci_status;
+        bdcpy(p_msg->bd_addr, p_data->role_chg.p_bda);
+        break;
+    case BTM_BL_COLLISION_EVT:
+        bdcpy(p_msg->bd_addr, p_data->conn.p_bda);
+        break;
+    }
+
+    p_msg->hdr.event = BTA_DM_ACL_CHANGE_EVT;
+    bta_sys_sendmsg(p_msg);
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_rs_cback
+**
+** Description      Receives the role switch complete event
+**
+** Returns
+**
+*******************************************************************************/
+static void bta_dm_rs_cback (tBTM_ROLE_SWITCH_CMPL *p1)
+{
+    UNUSED(p1);
+    APPL_TRACE_WARNING("bta_dm_rs_cback:%d", bta_dm_cb.rs_event);
+    if(bta_dm_cb.rs_event == BTA_DM_API_SEARCH_EVT)
+    {
+        bta_dm_cb.search_msg.rs_res = BTA_DM_RS_OK; /* do not care about the result for now */
+        bta_dm_cb.rs_event = 0;
+        bta_dm_search_start((tBTA_DM_MSG *)&bta_dm_cb.search_msg);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_check_av
+**
+** Description      This function checks if AV is active
+**                  if yes, make sure the AV link is master
+**
+** Returns          BOOLEAN - TRUE, if switch is in progress
+**
+*******************************************************************************/
+static BOOLEAN bta_dm_check_av(UINT16 event)
+{
+    BOOLEAN avoid_roleswitch = FALSE;
+    BOOLEAN switching = FALSE;
+    UINT8 i;
+    tBTA_DM_PEER_DEVICE *p_dev;
+
+#if defined(BTA_DM_AVOID_A2DP_ROLESWITCH_ON_INQUIRY) && (BTA_DM_AVOID_A2DP_ROLESWITCH_ON_INQUIRY == TRUE)
+
+    /* avoid role switch upon inquiry if a2dp is actively streaming as it
+       introduces an audioglitch due to FW scheduling delays (unavoidable) */
+    if (event == BTA_DM_API_SEARCH_EVT)
+    {
+        avoid_roleswitch = TRUE;
+    }
+#endif
+
+    APPL_TRACE_WARNING("bta_dm_check_av:%d", bta_dm_cb.cur_av_count);
+    if(bta_dm_cb.cur_av_count)
+    {
+        for(i=0; i<bta_dm_cb.device_list.count; i++)
+        {
+            p_dev = &bta_dm_cb.device_list.peer_device[i];
+            APPL_TRACE_WARNING("[%d]: state:%d, info:x%x, avoid_rs %d",
+                                i, p_dev->conn_state, p_dev->info, avoid_roleswitch);
+            if((p_dev->conn_state == BTA_DM_CONNECTED) && (p_dev->info & BTA_DM_DI_AV_ACTIVE) &&
+               (avoid_roleswitch == FALSE))
+            {
+                /* make master and take away the role switch policy */
+                if(BTM_CMD_STARTED == BTM_SwitchRole (p_dev->peer_bdaddr, HCI_ROLE_MASTER, (tBTM_CMPL_CB *)bta_dm_rs_cback))
+                {
+                    /* the role switch command is actually sent */
+                    bta_dm_cb.rs_event = event;
+                    switching = TRUE;
+                }
+                /* else either already master or can not switch for some reasons */
+                bta_dm_policy_cback(BTA_SYS_PLCY_CLR, 0, HCI_ENABLE_MASTER_SLAVE_SWITCH, p_dev->peer_bdaddr);
+                break;
+            }
+        }
+    }
+    return switching;
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_acl_change
+**
+** Description      Process BTA_DM_ACL_CHANGE_EVT
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_dm_acl_change(tBTA_DM_MSG *p_data)
+{
+
+    UINT8 i;
+    UINT8 *p;
+    tBTA_DM_SEC conn;
+    BOOLEAN is_new = p_data->acl_change.is_new;
+    BD_ADDR_PTR     p_bda = p_data->acl_change.bd_addr;
+    BOOLEAN         need_policy_change = FALSE;
+    BOOLEAN         issue_unpair_cb = FALSE;
+
+    tBTA_DM_PEER_DEVICE *p_dev;
+    memset(&conn, 0, sizeof(tBTA_DM_SEC));
+
+    switch(p_data->acl_change.event)
+    {
+    case BTM_BL_UPDATE_EVT:     /* busy level update */
+        if( bta_dm_cb.p_sec_cback )
+        {
+            conn.busy_level.level = p_data->acl_change.busy_level;
+            conn.busy_level.level_flags = p_data->acl_change.busy_level_flags;
+            bta_dm_cb.p_sec_cback(BTA_DM_BUSY_LEVEL_EVT, &conn);
+        }
+        return;
+
+    case BTM_BL_ROLE_CHG_EVT:   /* role change event */
+        p_dev = bta_dm_find_peer_device(p_bda);
+        if(p_dev)
+        {
+            APPL_TRACE_DEBUG("bta_dm_acl_change role chg info:x%x new_role:%d dev count:%d",
+                p_dev->info, p_data->acl_change.new_role, bta_dm_cb.device_list.count);
+            if(p_dev->info & BTA_DM_DI_AV_ACTIVE)
+            {
+                /* there's AV activity on this link */
+                if(p_data->acl_change.new_role == HCI_ROLE_SLAVE && bta_dm_cb.device_list.count > 1
+                    && p_data->acl_change.hci_status == HCI_SUCCESS)
+                {
+                    /* more than one connections and the AV connection is role switched to slave
+                     * switch it back to master and remove the switch policy */
+                    BTM_SwitchRole(p_bda, BTM_ROLE_MASTER, NULL);
+                    need_policy_change = TRUE;
+                }
+                else if (p_bta_dm_cfg->avoid_scatter && (p_data->acl_change.new_role == HCI_ROLE_MASTER))
+                {
+                    /* if the link updated to be master include AV activities, remove the switch policy */
+                    need_policy_change = TRUE;
+                }
+
+                if(need_policy_change)
+                {
+                    bta_dm_policy_cback(BTA_SYS_PLCY_CLR, 0, HCI_ENABLE_MASTER_SLAVE_SWITCH, p_dev->peer_bdaddr);
+                }
+            }
+            else
+            {
+                /* there's AV no activity on this link and role switch happened
+                 * check if AV is active
+                 * if so, make sure the AV link is master */
+                bta_dm_check_av(0);
+            }
+            bta_sys_notify_role_chg(p_data->acl_change.bd_addr, p_data->acl_change.new_role, p_data->acl_change.hci_status);
+            bdcpy(conn.role_chg.bd_addr, p_bda);
+            conn.role_chg.new_role = (UINT8) p_data->acl_change.new_role;
+            if( bta_dm_cb.p_sec_cback )
+                bta_dm_cb.p_sec_cback(BTA_DM_ROLE_CHG_EVT, (tBTA_DM_SEC *)&conn);
+        }
+        return;
+    }
+
+    /* Collision report from Stack: Notify profiles */
+    if (p_data->acl_change.event == BTM_BL_COLLISION_EVT)
+    {
+        bta_sys_notify_collision (p_bda);
+        return;
+    }
+
+    if(is_new)
+    {
+        for(i=0; i<bta_dm_cb.device_list.count; i++)
+        {
+            if (!bdcmp( bta_dm_cb.device_list.peer_device[i].peer_bdaddr, p_bda)
+#if BLE_INCLUDED == TRUE
+                 && bta_dm_cb.device_list.peer_device[i].conn_handle == p_data->acl_change.handle
+#endif
+                 )
+                break;
+
+        }
+
+        if(i == bta_dm_cb.device_list.count)
+        {
+            if (bta_dm_cb.device_list.count < BTA_DM_NUM_PEER_DEVICE)
+            {
+                bdcpy(bta_dm_cb.device_list.peer_device[bta_dm_cb.device_list.count].peer_bdaddr, p_bda);
+                bta_dm_cb.device_list.peer_device[bta_dm_cb.device_list.count].link_policy = bta_dm_cb.cur_policy;
+                bta_dm_cb.device_list.count++;
+#if BLE_INCLUDED == TRUE
+                bta_dm_cb.device_list.peer_device[i].conn_handle = p_data->acl_change.handle;
+                if (p_data->acl_change.transport == BT_TRANSPORT_LE)
+                    bta_dm_cb.device_list.le_count++;
+#endif
+            } else {
+                APPL_TRACE_ERROR("%s max active connection reached, no resources", __func__);
+                return;
+            }
+        }
+
+        bta_dm_cb.device_list.peer_device[i].conn_state = BTA_DM_CONNECTED;
+        bta_dm_cb.device_list.peer_device[i].pref_role = BTA_ANY_ROLE;
+        bdcpy(conn.link_up.bd_addr, p_bda);
+        bta_dm_cb.device_list.peer_device[i].info = BTA_DM_DI_NONE;
+#if BLE_INCLUDED == TRUE
+        conn.link_up.link_type = p_data->acl_change.transport;
+        bta_dm_cb.device_list.peer_device[i].transport = p_data->acl_change.transport;
+#endif
+
+        if (((NULL != (p = BTM_ReadLocalFeatures ())) && HCI_SNIFF_SUB_RATE_SUPPORTED(p)) &&
+            ((NULL != (p = BTM_ReadRemoteFeatures (p_bda))) && HCI_SNIFF_SUB_RATE_SUPPORTED(p)))
+        {
+            /* both local and remote devices support SSR */
+            bta_dm_cb.device_list.peer_device[i].info = BTA_DM_DI_USE_SSR;
+        }
+        APPL_TRACE_WARNING("%s info: 0x%x", __func__, bta_dm_cb.device_list.peer_device[i].info);
+
+        if (bta_dm_cb.p_sec_cback)
+            bta_dm_cb.p_sec_cback(BTA_DM_LINK_UP_EVT, (tBTA_DM_SEC *)&conn);
+    } else {
+        for(i=0; i<bta_dm_cb.device_list.count; i++)
+        {
+            if (bdcmp( bta_dm_cb.device_list.peer_device[i].peer_bdaddr, p_bda)
+#if BLE_INCLUDED == TRUE
+                 ||bta_dm_cb.device_list.peer_device[i].transport != p_data->acl_change.transport
+#endif
+               )
+                continue;
+
+            if( bta_dm_cb.device_list.peer_device[i].conn_state == BTA_DM_UNPAIRING )
+            {
+                if (BTM_SecDeleteDevice(bta_dm_cb.device_list.peer_device[i].peer_bdaddr))
+#ifdef BLUETOOTH_RTK
+                    /* unbond, remove all cached GATT information */
+                    BTA_GATTC_Refresh(p_bda);
+#endif
+                    issue_unpair_cb = TRUE;
+
+                APPL_TRACE_DEBUG("%s: Unpairing: issue unpair CB = %d ",__FUNCTION__, issue_unpair_cb);
+            }
+
+            conn.link_down.is_removed = bta_dm_cb.device_list.peer_device[i].remove_dev_pending;
+
+            for(; i<bta_dm_cb.device_list.count ; i++)
+            {
+                memcpy(&bta_dm_cb.device_list.peer_device[i], &bta_dm_cb.device_list.peer_device[i+1], sizeof(bta_dm_cb.device_list.peer_device[i]));
+            }
+            break;
+        }
+        if(bta_dm_cb.device_list.count)
+            bta_dm_cb.device_list.count--;
+#if BLE_INCLUDED == TRUE
+        if ((p_data->acl_change.transport == BT_TRANSPORT_LE) &&
+             (bta_dm_cb.device_list.le_count))
+            bta_dm_cb.device_list.le_count--;
+        conn.link_down.link_type = p_data->acl_change.transport;
+#endif
+
+        if(bta_dm_search_cb.wait_disc && !bdcmp(bta_dm_search_cb.peer_bdaddr, p_bda))
+        {
+            bta_dm_search_cb.wait_disc = FALSE;
+
+            if(bta_dm_search_cb.sdp_results)
+            {
+                APPL_TRACE_EVENT(" timer stopped  ");
+                alarm_cancel(bta_dm_search_cb.search_timer);
+                bta_dm_discover_next_device();
+            }
+
+        }
+
+        if(bta_dm_cb.disabling)
+        {
+            if(!BTM_GetNumAclLinks())
+            {
+                /*
+                 * Start a timer to make sure that the profiles
+                 * get the disconnect event.
+                 */
+                alarm_set_on_queue(bta_dm_cb.disable_timer,
+                                   BTA_DM_DISABLE_CONN_DOWN_TIMER_MS,
+                                   bta_dm_disable_conn_down_timer_cback, NULL,
+                                   btu_bta_alarm_queue);
+            }
+        }
+        if (conn.link_down.is_removed)
+        {
+            BTM_SecDeleteDevice(p_bda);
+#if (BLE_INCLUDED == TRUE && BTA_GATT_INCLUDED == TRUE)
+            /* need to remove all pending background connection */
+            BTA_GATTC_CancelOpen(0, p_bda, FALSE);
+            /* remove all cached GATT information */
+            BTA_GATTC_Refresh(p_bda);
+#endif
+         }
+
+        bdcpy(conn.link_down.bd_addr, p_bda);
+        conn.link_down.status = (UINT8) btm_get_acl_disc_reason_code();
+        if( bta_dm_cb.p_sec_cback )
+        {
+            bta_dm_cb.p_sec_cback(BTA_DM_LINK_DOWN_EVT, &conn);
+            if( issue_unpair_cb )
+                bta_dm_cb.p_sec_cback(BTA_DM_DEV_UNPAIRED_EVT, &conn);
+        }
+    }
+
+    bta_dm_adjust_roles(TRUE);
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_disable_conn_down_timer_cback
+**
+** Description      Sends disable event to application
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_dm_disable_conn_down_timer_cback(UNUSED_ATTR void *data)
+{
+    tBTA_SYS_HW_MSG *sys_enable_event =
+        (tBTA_SYS_HW_MSG *)osi_malloc(sizeof(tBTA_SYS_HW_MSG));
+
+    /* disable the power managment module */
+    bta_dm_disable_pm();
+
+    /* register our callback to SYS HW manager */
+    bta_sys_hw_register(BTA_SYS_HW_BLUETOOTH, bta_dm_sys_hw_cback );
+
+    /* send a message to BTA SYS */
+    sys_enable_event->hdr.event = BTA_SYS_API_DISABLE_EVT;
+    sys_enable_event->hw_module = BTA_SYS_HW_BLUETOOTH;
+    bta_sys_sendmsg(sys_enable_event);
+
+    bta_dm_cb.disabling = FALSE;
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_rm_cback
+**
+** Description      Role management callback from sys
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_dm_rm_cback(tBTA_SYS_CONN_STATUS status, UINT8 id, UINT8 app_id, BD_ADDR peer_addr)
+{
+    UINT8 j;
+    tBTA_PREF_ROLES role;
+    tBTA_DM_PEER_DEVICE *p_dev;
+
+    p_dev = bta_dm_find_peer_device(peer_addr);
+    if( status == BTA_SYS_CONN_OPEN)
+    {
+        if(p_dev)
+        {
+            /* Do not set to connected if we are in the middle of unpairing. When AV stream is
+             * started it fakes out a SYS_CONN_OPEN to potentially trigger a role switch command.
+             * But this should not be done if we are in the middle of unpairing.
+             */
+            if (p_dev->conn_state != BTA_DM_UNPAIRING)
+                p_dev->conn_state = BTA_DM_CONNECTED;
+
+            for(j=1; j<= p_bta_dm_rm_cfg[0].app_id; j++)
+            {
+                if(((p_bta_dm_rm_cfg[j].app_id == app_id) || (p_bta_dm_rm_cfg[j].app_id == BTA_ALL_APP_ID))
+                    && (p_bta_dm_rm_cfg[j].id == id))
+                {
+                    role = p_bta_dm_rm_cfg[j].cfg;
+
+                    if(role > p_dev->pref_role )
+                        p_dev->pref_role = role;
+                    break;
+                }
+            }
+        }
+    }
+
+    if((BTA_ID_AV == id)||(BTA_ID_AVK ==id))
+    {
+        if( status == BTA_SYS_CONN_BUSY)
+        {
+            if(p_dev)
+                p_dev->info |= BTA_DM_DI_AV_ACTIVE;
+            /* AV calls bta_sys_conn_open with the A2DP stream count as app_id */
+            if(BTA_ID_AV == id)
+                bta_dm_cb.cur_av_count = bta_dm_get_av_count();
+        }
+        else if( status == BTA_SYS_CONN_IDLE)
+        {
+            if(p_dev)
+                p_dev->info &= ~BTA_DM_DI_AV_ACTIVE;
+
+            /* get cur_av_count from connected services */
+            if(BTA_ID_AV == id)
+                bta_dm_cb.cur_av_count = bta_dm_get_av_count();
+        }
+        APPL_TRACE_WARNING("bta_dm_rm_cback:%d, status:%d", bta_dm_cb.cur_av_count, status);
+    }
+
+    /* Don't adjust roles for each busy/idle state transition to avoid
+       excessive switch requests when individual profile busy/idle status
+       changes */
+    if ((status != BTA_SYS_CONN_BUSY) && (status != BTA_SYS_CONN_IDLE))
+        bta_dm_adjust_roles(FALSE);
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_delay_role_switch_cback
+**
+** Description      Callback from btm to delay a role switch
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_dm_delay_role_switch_cback(UNUSED_ATTR void *data)
+{
+    APPL_TRACE_EVENT("%s: initiating Delayed RS", __func__);
+    bta_dm_adjust_roles(FALSE);
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_reset_sec_dev_pending
+**
+** Description      Setting the remove device pending status to FALSE from
+**                  security device DB, when the link key notification
+**                  event comes.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_dm_reset_sec_dev_pending(BD_ADDR remote_bd_addr)
+{
+    for (size_t i = 0; i < bta_dm_cb.device_list.count; i++)
+    {
+        if (bdcmp(bta_dm_cb.device_list.peer_device[i].peer_bdaddr, remote_bd_addr) == 0)
+        {
+            bta_dm_cb.device_list.peer_device[i].remove_dev_pending = FALSE;
+            return;
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_remove_sec_dev_entry
+**
+** Description      Removes device entry from Security device DB if ACL connection with
+**                  remtoe device does not exist, else schedule for dev entry removal upon
+                     ACL close
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_dm_remove_sec_dev_entry(BD_ADDR remote_bd_addr)
+{
+    UINT16 index = 0;
+    if ( BTM_IsAclConnectionUp(remote_bd_addr, BT_TRANSPORT_LE) ||
+         BTM_IsAclConnectionUp(remote_bd_addr, BT_TRANSPORT_BR_EDR))
+    {
+         APPL_TRACE_DEBUG("%s ACL is not down. Schedule for  Dev Removal when ACL closes",
+                            __FUNCTION__);
+        for (index = 0; index < bta_dm_cb.device_list.count; index ++)
+        {
+            if (!bdcmp( bta_dm_cb.device_list.peer_device[index].peer_bdaddr, remote_bd_addr))
+                break;
+        }
+        if (index != bta_dm_cb.device_list.count)
+        {
+            bta_dm_cb.device_list.peer_device[index].remove_dev_pending = TRUE;
+        }
+        else
+        {
+            APPL_TRACE_ERROR(" %s Device does not exist in DB", __FUNCTION__);
+        }
+    }
+    else
+    {
+        BTM_SecDeleteDevice (remote_bd_addr);
+#if (BLE_INCLUDED == TRUE && BTA_GATT_INCLUDED == TRUE)
+        /* need to remove all pending background connection */
+        BTA_GATTC_CancelOpen(0, remote_bd_addr, FALSE);
+        /* remove all cached GATT information */
+        BTA_GATTC_Refresh(remote_bd_addr);
+#endif
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         bta_dm_adjust_roles
+**
+** Description      Adjust roles
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_dm_adjust_roles(BOOLEAN delay_role_switch)
+{
+
+    UINT8 i;
+    BOOLEAN set_master_role = FALSE;
+#if BLE_INCLUDED == TRUE
+    UINT8 br_count = bta_dm_cb.device_list.count - bta_dm_cb.device_list.le_count;
+#else
+    UINT8 br_count = bta_dm_cb.device_list.count;
+#endif
+    if (br_count)
+    {
+
+        /* the configuration is no scatternet
+         * or AV connection exists and there are more than one ACL link */
+        if ( (p_bta_dm_rm_cfg[0].cfg == BTA_DM_NO_SCATTERNET) ||
+             (bta_dm_cb.cur_av_count && br_count > 1) )
+        {
+
+            L2CA_SetDesireRole (HCI_ROLE_MASTER);
+            set_master_role = TRUE;
+
+        }
+
+        for(i=0; i<bta_dm_cb.device_list.count; i++)
+        {
+            if (bta_dm_cb.device_list.peer_device[i].conn_state == BTA_DM_CONNECTED
+#if BLE_INCLUDED == TRUE
+                && bta_dm_cb.device_list.peer_device[i].transport == BT_TRANSPORT_BR_EDR
+#endif
+                )
+            {
+                if(!set_master_role && (bta_dm_cb.device_list.peer_device[i].pref_role != BTA_ANY_ROLE)
+                    && (p_bta_dm_rm_cfg[0].cfg == BTA_DM_PARTIAL_SCATTERNET))
+                {
+                    L2CA_SetDesireRole (HCI_ROLE_MASTER);
+                    set_master_role = TRUE;
+                }
+
+                if((bta_dm_cb.device_list.peer_device[i].pref_role == BTA_MASTER_ROLE_ONLY)
+                    || (br_count > 1))
+                {
+
+                /* Initiating immediate role switch with certain remote devices
+                  has caused issues due to role  switch colliding with link encryption setup and
+                  causing encryption (and in turn the link) to fail .  These device . Firmware
+                  versions are stored in a blacklist and role switch with these devices are
+                  delayed to avoid the collision with link encryption setup */
+
+                    if (bta_dm_cb.device_list.peer_device[i].pref_role != BTA_SLAVE_ROLE_ONLY &&
+                            delay_role_switch == FALSE)
+                    {
+                        BTM_SwitchRole (bta_dm_cb.device_list.peer_device[i].peer_bdaddr,
+                                        HCI_ROLE_MASTER, NULL);
+                    }
+                    else
+                    {
+                        alarm_set_on_queue(bta_dm_cb.switch_delay_timer,
+                                           BTA_DM_SWITCH_DELAY_TIMER_MS,
+                                           bta_dm_delay_role_switch_cback,
+                                           NULL, btu_bta_alarm_queue);
+                    }
+                }
+            }
+        }
+
+
+        if(!set_master_role)
+        {
+
+            L2CA_SetDesireRole (L2CAP_DESIRED_LINK_ROLE);
+
+        }
+
+    }
+    else
+    {
+        L2CA_SetDesireRole (L2CAP_DESIRED_LINK_ROLE);
+    }
+
+
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_get_remname
+**
+** Description      Returns a pointer to the remote name stored in the DM control
+**                  block if it exists, or from the BTM memory.
+**
+** Returns          char * - Pointer to the remote device name
+*******************************************************************************/
+static char *bta_dm_get_remname(void)
+{
+    char *p_name = (char *)bta_dm_search_cb.peer_name;
+    char *p_temp;
+
+    /* If the name isn't already stored, try retrieving from BTM */
+    if (*p_name == '\0')
+        if ((p_temp = BTM_SecReadDevName(bta_dm_search_cb.peer_bdaddr)) != NULL)
+            p_name = p_temp;
+
+    return p_name;
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_bond_cancel_complete_cback
+**
+** Description      Authentication complete callback from BTM
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_dm_bond_cancel_complete_cback(tBTM_STATUS result)
+{
+
+    tBTA_DM_SEC sec_event;
+
+    if (result == BTM_SUCCESS)
+        sec_event.bond_cancel_cmpl.result = BTA_SUCCESS;
+    else
+        sec_event.bond_cancel_cmpl.result = BTA_FAILURE;
+
+    if(bta_dm_cb.p_sec_cback)
+    {
+        bta_dm_cb.p_sec_cback(BTA_DM_BOND_CANCEL_CMPL_EVT, &sec_event);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         find_utf8_char_boundary
+**
+** Description      This function checks a UTF8 string |utf8str| starting at
+**                  |offset|, moving backwards and returns the offset of the
+**                  next valid UTF8 character boundary found.
+**
+** Returns          Offset of UTF8 character boundary
+**
+*******************************************************************************/
+static size_t find_utf8_char_boundary(const char *utf8str, size_t offset)
+{
+    assert(utf8str);
+    assert(offset > 0);
+
+    while (--offset)
+    {
+        uint8_t ch = (uint8_t)utf8str[offset];
+        if ((ch & 0x80) == 0x00) // ASCII
+            return offset + 1;
+        if ((ch & 0xC0) == 0xC0) // Multi-byte sequence start
+            return offset;
+    }
+
+    return 0;
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_set_eir
+**
+** Description      This function creates EIR tagged data and writes it to controller.
+**
+** Returns          None
+**
+*******************************************************************************/
+static void bta_dm_set_eir (char *local_name)
+{
+    UINT8    *p;
+    UINT8    *p_length;
+#if (BTA_EIR_CANNED_UUID_LIST != TRUE)
+    UINT8    *p_type;
+    UINT8    max_num_uuid;
+#if (BTA_EIR_SERVER_NUM_CUSTOM_UUID > 0)
+    UINT8    custom_uuid_idx;
+#endif  // BTA_EIR_SERVER_NUM_CUSTOM_UUID
+#endif  // BTA_EIR_CANNED_UUID_LIST
+#if (BTM_EIR_DEFAULT_FEC_REQUIRED == FALSE)
+    UINT8    free_eir_length = HCI_EXT_INQ_RESPONSE_LEN;
+#else  // BTM_EIR_DEFAULT_FEC_REQUIRED
+    UINT8    free_eir_length = HCI_DM5_PACKET_SIZE;
+#endif  // BTM_EIR_DEFAULT_FEC_REQUIRED
+    UINT8    num_uuid;
+    UINT8    data_type;
+    UINT8    local_name_len;
+
+    /* wait until complete to disable */
+    if (alarm_is_scheduled(bta_dm_cb.disable_timer))
+        return;
+
+#if ( BTA_EIR_CANNED_UUID_LIST != TRUE )
+    /* if local name is not provided, get it from controller */
+    if( local_name == NULL )
+    {
+        if( BTM_ReadLocalDeviceName( &local_name ) != BTM_SUCCESS )
+        {
+            APPL_TRACE_ERROR("Fail to read local device name for EIR");
+        }
+    }
+#endif  // BTA_EIR_CANNED_UUID_LIST
+
+    /* Allocate a buffer to hold HCI command */
+    BT_HDR *p_buf = (BT_HDR *)osi_malloc(BTM_CMD_BUF_SIZE);
+    p = (UINT8 *)p_buf + BTM_HCI_EIR_OFFSET;
+
+    memset(p, 0x00, HCI_EXT_INQ_RESPONSE_LEN );
+
+    APPL_TRACE_DEBUG("BTA is generating EIR");
+
+    if( local_name )
+        local_name_len = strlen( local_name );
+    else
+        local_name_len = 0;
+
+    data_type = BTM_EIR_COMPLETE_LOCAL_NAME_TYPE;
+    /* if local name is longer than minimum length of shortened name */
+    /* check whether it needs to be shortened or not */
+    if( local_name_len > p_bta_dm_eir_cfg->bta_dm_eir_min_name_len )
+    {
+        /* get number of UUID 16-bit list */
+#if (BTA_EIR_CANNED_UUID_LIST == TRUE)
+        num_uuid = p_bta_dm_eir_cfg->bta_dm_eir_uuid16_len/LEN_UUID_16;
+#else  // BTA_EIR_CANNED_UUID_LIST
+        max_num_uuid = (free_eir_length - 2)/LEN_UUID_16;
+        data_type = BTM_GetEirSupportedServices( bta_dm_cb.eir_uuid, &p,
+                                                 max_num_uuid, &num_uuid );
+        p = (UINT8 *)p_buf + BTM_HCI_EIR_OFFSET; /* reset p */
+#endif  // BTA_EIR_CANNED_UUID_LIST
+
+        /* if UUID doesn't fit remaing space, shorten local name */
+        if (local_name_len > (free_eir_length - 4 - num_uuid*LEN_UUID_16))
+        {
+            local_name_len = find_utf8_char_boundary(local_name,
+                p_bta_dm_eir_cfg->bta_dm_eir_min_name_len);
+            APPL_TRACE_WARNING("%s local name is shortened (%d)", __func__, local_name_len);
+            data_type = BTM_EIR_SHORTENED_LOCAL_NAME_TYPE;
+        } else {
+            data_type = BTM_EIR_COMPLETE_LOCAL_NAME_TYPE;
+        }
+    }
+
+    UINT8_TO_STREAM(p, local_name_len + 1);
+    UINT8_TO_STREAM(p, data_type);
+
+    if (local_name != NULL)
+    {
+        memcpy(p, local_name, local_name_len);
+        p += local_name_len;
+    }
+    free_eir_length -= local_name_len + 2;
+
+#if (BTA_EIR_CANNED_UUID_LIST == TRUE)
+    /* if UUID list is provided as static data in configuration */
+    if(( p_bta_dm_eir_cfg->bta_dm_eir_uuid16_len > 0 )
+        &&(p_bta_dm_eir_cfg->bta_dm_eir_uuid16))
+    {
+        if( free_eir_length > LEN_UUID_16 + 2)
+        {
+            free_eir_length -= 2;
+
+            if( free_eir_length >= p_bta_dm_eir_cfg->bta_dm_eir_uuid16_len)
+            {
+                num_uuid = p_bta_dm_eir_cfg->bta_dm_eir_uuid16_len / LEN_UUID_16;
+                data_type = BTM_EIR_COMPLETE_16BITS_UUID_TYPE;
+            }
+            else /* not enough room for all UUIDs */
+            {
+                APPL_TRACE_WARNING("BTA EIR: UUID 16-bit list is truncated");
+                num_uuid = free_eir_length / LEN_UUID_16;
+                data_type = BTM_EIR_MORE_16BITS_UUID_TYPE;
+            }
+            UINT8_TO_STREAM(p, num_uuid * LEN_UUID_16 + 1);
+            UINT8_TO_STREAM(p, data_type);
+            memcpy(p, p_bta_dm_eir_cfg->bta_dm_eir_uuid16, num_uuid * LEN_UUID_16 );
+            p += num_uuid * LEN_UUID_16;
+            free_eir_length -= num_uuid * LEN_UUID_16;
+        }
+    }
+#else /* (BTA_EIR_CANNED_UUID_LIST == TRUE) */
+    /* if UUID list is dynamic */
+    if ( free_eir_length >= 2)
+    {
+        p_length = p++;
+        p_type   = p++;
+        num_uuid = 0;
+
+        max_num_uuid = (free_eir_length - 2)/LEN_UUID_16;
+        data_type = BTM_GetEirSupportedServices( bta_dm_cb.eir_uuid, &p, max_num_uuid, &num_uuid );
+
+        if( data_type == BTM_EIR_MORE_16BITS_UUID_TYPE )
+        {
+            APPL_TRACE_WARNING("BTA EIR: UUID 16-bit list is truncated");
+        }
+#if (BTA_EIR_SERVER_NUM_CUSTOM_UUID > 0)
+        else
+        {
+            for (custom_uuid_idx = 0; custom_uuid_idx < BTA_EIR_SERVER_NUM_CUSTOM_UUID; custom_uuid_idx++)
+            {
+                if (bta_dm_cb.custom_uuid[custom_uuid_idx].len == LEN_UUID_16)
+                {
+                    if ( num_uuid < max_num_uuid )
+                    {
+                        UINT16_TO_STREAM(p, bta_dm_cb.custom_uuid[custom_uuid_idx].uu.uuid16);
+                        num_uuid++;
+                    }
+                    else
+                    {
+                        data_type = BTM_EIR_MORE_16BITS_UUID_TYPE;
+                        APPL_TRACE_WARNING("BTA EIR: UUID 16-bit list is truncated");
+                        break;
+                    }
+                }
+            }
+        }
+#endif /* (BTA_EIR_SERVER_NUM_CUSTOM_UUID > 0) */
+
+        UINT8_TO_STREAM(p_length, num_uuid * LEN_UUID_16 + 1);
+        UINT8_TO_STREAM(p_type, data_type);
+        free_eir_length -= num_uuid * LEN_UUID_16 + 2;
+    }
+#endif /* (BTA_EIR_CANNED_UUID_LIST == TRUE) */
+
+#if ( BTA_EIR_CANNED_UUID_LIST != TRUE )&&(BTA_EIR_SERVER_NUM_CUSTOM_UUID > 0)
+    /* Adding 32-bit UUID list */
+    if ( free_eir_length >= 2)
+    {
+        p_length = p++;
+        p_type   = p++;
+        num_uuid = 0;
+        data_type = BTM_EIR_COMPLETE_32BITS_UUID_TYPE;
+
+        max_num_uuid = (free_eir_length - 2)/LEN_UUID_32;
+
+        for (custom_uuid_idx = 0; custom_uuid_idx < BTA_EIR_SERVER_NUM_CUSTOM_UUID; custom_uuid_idx++)
+        {
+            if (bta_dm_cb.custom_uuid[custom_uuid_idx].len == LEN_UUID_32)
+            {
+                if ( num_uuid < max_num_uuid )
+                {
+                    UINT32_TO_STREAM(p, bta_dm_cb.custom_uuid[custom_uuid_idx].uu.uuid32);
+                    num_uuid++;
+                }
+                else
+                {
+                    data_type = BTM_EIR_MORE_32BITS_UUID_TYPE;
+                    APPL_TRACE_WARNING("BTA EIR: UUID 32-bit list is truncated");
+                    break;
+                }
+            }
+        }
+
+        UINT8_TO_STREAM(p_length, num_uuid * LEN_UUID_32 + 1);
+        UINT8_TO_STREAM(p_type, data_type);
+        free_eir_length -= num_uuid * LEN_UUID_32 + 2;
+    }
+
+    /* Adding 128-bit UUID list */
+    if ( free_eir_length >= 2)
+    {
+        p_length = p++;
+        p_type   = p++;
+        num_uuid = 0;
+        data_type = BTM_EIR_COMPLETE_128BITS_UUID_TYPE;
+
+        max_num_uuid = (free_eir_length - 2)/LEN_UUID_128;
+
+        for (custom_uuid_idx = 0; custom_uuid_idx < BTA_EIR_SERVER_NUM_CUSTOM_UUID; custom_uuid_idx++)
+        {
+            if (bta_dm_cb.custom_uuid[custom_uuid_idx].len == LEN_UUID_128)
+            {
+                if ( num_uuid < max_num_uuid )
+                {
+                    ARRAY16_TO_STREAM(p, bta_dm_cb.custom_uuid[custom_uuid_idx].uu.uuid128);
+                    num_uuid++;
+                }
+                else
+                {
+                    data_type = BTM_EIR_MORE_128BITS_UUID_TYPE;
+                    APPL_TRACE_WARNING("BTA EIR: UUID 128-bit list is truncated");
+                    break;
+                }
+            }
+        }
+
+        UINT8_TO_STREAM(p_length, num_uuid * LEN_UUID_128 + 1);
+        UINT8_TO_STREAM(p_type, data_type);
+        free_eir_length -= num_uuid * LEN_UUID_128 + 2;
+    }
+#endif /* ( BTA_EIR_CANNED_UUID_LIST != TRUE )&&(BTA_EIR_SERVER_NUM_CUSTOM_UUID > 0) */
+
+    /* if Flags are provided in configuration */
+    if(( p_bta_dm_eir_cfg->bta_dm_eir_flag_len > 0 )
+     &&( p_bta_dm_eir_cfg->bta_dm_eir_flags )
+     &&( free_eir_length >= p_bta_dm_eir_cfg->bta_dm_eir_flag_len + 2 ))
+    {
+        UINT8_TO_STREAM(p, p_bta_dm_eir_cfg->bta_dm_eir_flag_len + 1);
+        UINT8_TO_STREAM(p, BTM_EIR_FLAGS_TYPE);
+        memcpy(p, p_bta_dm_eir_cfg->bta_dm_eir_flags,
+               p_bta_dm_eir_cfg->bta_dm_eir_flag_len);
+        p += p_bta_dm_eir_cfg->bta_dm_eir_flag_len;
+        free_eir_length -= p_bta_dm_eir_cfg->bta_dm_eir_flag_len + 2;
+    }
+
+    /* if Manufacturer Specific are provided in configuration */
+    if(( p_bta_dm_eir_cfg->bta_dm_eir_manufac_spec_len > 0 )
+     &&( p_bta_dm_eir_cfg->bta_dm_eir_manufac_spec )
+     &&( free_eir_length >= p_bta_dm_eir_cfg->bta_dm_eir_manufac_spec_len + 2 ))
+    {
+        p_length = p;
+
+        UINT8_TO_STREAM(p, p_bta_dm_eir_cfg->bta_dm_eir_manufac_spec_len + 1);
+        UINT8_TO_STREAM(p, BTM_EIR_MANUFACTURER_SPECIFIC_TYPE);
+        memcpy(p, p_bta_dm_eir_cfg->bta_dm_eir_manufac_spec,
+               p_bta_dm_eir_cfg->bta_dm_eir_manufac_spec_len);
+        p += p_bta_dm_eir_cfg->bta_dm_eir_manufac_spec_len;
+        free_eir_length -= p_bta_dm_eir_cfg->bta_dm_eir_manufac_spec_len + 2;
+
+    }
+    else
+    {
+        p_length = NULL;
+    }
+
+    /* if Inquiry Tx Resp Power compiled */
+    if ((p_bta_dm_eir_cfg->bta_dm_eir_inq_tx_power) &&
+        (free_eir_length >= 3))
+    {
+        UINT8_TO_STREAM(p, 2);      /* Length field */
+        UINT8_TO_STREAM(p, BTM_EIR_TX_POWER_LEVEL_TYPE);
+        UINT8_TO_STREAM(p, *(p_bta_dm_eir_cfg->bta_dm_eir_inq_tx_power));
+        free_eir_length -= 3;
+    }
+
+    if( free_eir_length )
+        UINT8_TO_STREAM(p, 0); /* terminator of significant part */
+
+    BTM_WriteEIR( p_buf );
+
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_eir_search_services
+**
+** Description      This function searches services in received EIR
+**
+** Returns          None
+**
+*******************************************************************************/
+static void bta_dm_eir_search_services( tBTM_INQ_RESULTS  *p_result,
+                                        tBTA_SERVICE_MASK *p_services_to_search,
+                                        tBTA_SERVICE_MASK *p_services_found)
+{
+    tBTA_SERVICE_MASK       service_index = 0;
+    tBTM_EIR_SEARCH_RESULT  result;
+
+    APPL_TRACE_DEBUG("BTA searching services in EIR of BDA:0x%02X%02X%02X%02X%02X%02X",
+                        p_result->remote_bd_addr[0],p_result->remote_bd_addr[1],
+                        p_result->remote_bd_addr[2],p_result->remote_bd_addr[3],
+                        p_result->remote_bd_addr[4],p_result->remote_bd_addr[5]);
+
+    APPL_TRACE_DEBUG("    with services_to_search=0x%08X", *p_services_to_search);
+
+#if BLE_INCLUDED == TRUE && BTA_GATT_INCLUDED == TRUE
+    /* always do GATT based service discovery by SDP instead of from EIR    */
+    /* if GATT based service is also to be put in EIR, need to modify this  */
+    while (service_index < (BTA_MAX_SERVICE_ID - 1))
+#else
+    while(service_index < BTA_MAX_SERVICE_ID)
+#endif
+    {
+        if( *p_services_to_search
+           & (tBTA_SERVICE_MASK)(BTA_SERVICE_ID_TO_SERVICE_MASK(service_index)))
+        {
+            result = BTM_HasInquiryEirService( p_result,
+                                               bta_service_id_to_uuid_lkup_tbl[service_index] );
+
+            /* Searching for HSP v1.2 only device */
+            if ((result != BTM_EIR_FOUND) &&
+                (bta_service_id_to_uuid_lkup_tbl[service_index] == UUID_SERVCLASS_HEADSET))
+            {
+                result = BTM_HasInquiryEirService (p_result, UUID_SERVCLASS_HEADSET_HS);
+            }
+
+            if( result == BTM_EIR_FOUND )
+            {
+                /* If Plug and Play service record, need to check to see if Broadcom stack */
+                /* However, EIR data doesn't have EXT_BRCM_VERSION so just skip it */
+                if( bta_service_id_to_uuid_lkup_tbl[service_index]
+                    != UUID_SERVCLASS_PNP_INFORMATION )
+                {
+
+                    *p_services_found |=
+                       (tBTA_SERVICE_MASK)(BTA_SERVICE_ID_TO_SERVICE_MASK(service_index));
+                    /* remove the service from services to be searched  */
+                    *p_services_to_search &=
+                       (tBTA_SERVICE_MASK)(~(BTA_SERVICE_ID_TO_SERVICE_MASK(service_index)));
+                }
+            }
+            else if( result == BTM_EIR_NOT_FOUND )
+            {
+                /* remove the service from services to be searched  */
+                *p_services_to_search &=
+                       (tBTA_SERVICE_MASK)(~(BTA_SERVICE_ID_TO_SERVICE_MASK(service_index)));
+            }
+        }
+
+        service_index++;
+    }
+
+    APPL_TRACE_ERROR("BTA EIR search result, services_to_search=0x%08X, services_found=0x%08X",
+                        *p_services_to_search, *p_services_found);
+}
+
+#if (BTA_EIR_CANNED_UUID_LIST != TRUE)
+/*******************************************************************************
+**
+** Function         bta_dm_eir_update_uuid
+**
+** Description      This function adds or removes service UUID in EIR database.
+**
+** Returns          None
+**
+*******************************************************************************/
+void bta_dm_eir_update_uuid(UINT16 uuid16, BOOLEAN adding)
+{
+    /* if this UUID is not advertised in EIR */
+    if( !BTM_HasEirService( p_bta_dm_eir_cfg->uuid_mask, uuid16 ))
+        return;
+
+    if( adding )
+    {
+        APPL_TRACE_EVENT("Adding UUID=0x%04X into EIR", uuid16);
+
+        BTM_AddEirService( bta_dm_cb.eir_uuid, uuid16 );
+    }
+    else
+    {
+        APPL_TRACE_EVENT("Removing UUID=0x%04X from EIR", uuid16);
+
+        BTM_RemoveEirService( bta_dm_cb.eir_uuid, uuid16 );
+    }
+
+    bta_dm_set_eir (NULL);
+
+    APPL_TRACE_EVENT("bta_dm_eir_update_uuid UUID bit mask=0x%08X %08X",
+                       bta_dm_cb.eir_uuid[1], bta_dm_cb.eir_uuid[0] );
+}
+#endif
+
+/*******************************************************************************
+**
+** Function         bta_dm_enable_test_mode
+**
+** Description      enable test mode
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_dm_enable_test_mode(tBTA_DM_MSG *p_data)
+{
+    UNUSED(p_data);
+    BTM_EnableTestMode();
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_disable_test_mode
+**
+** Description      disable test mode
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_dm_disable_test_mode(tBTA_DM_MSG *p_data)
+{
+    UNUSED(p_data);
+    BTM_DeviceReset(NULL);
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_execute_callback
+**
+** Description      Just execute a generic call back in the context of the BTU/BTA tack
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_dm_execute_callback(tBTA_DM_MSG *p_data)
+{
+    /* sanity check */
+    if(p_data->exec_cback.p_exec_cback == NULL)
+    {
+        return;
+    }
+
+    p_data->exec_cback.p_exec_cback(p_data->exec_cback.p_param);
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_encrypt_cback
+**
+** Description      link encryption complete callback.
+**
+** Returns         None
+**
+*******************************************************************************/
+void bta_dm_encrypt_cback(BD_ADDR bd_addr, tBT_TRANSPORT transport, void *p_ref_data, tBTM_STATUS result)
+{
+    tBTA_STATUS   bta_status = BTA_SUCCESS;
+    tBTA_DM_ENCRYPT_CBACK *p_callback = NULL;
+    UINT8   i ;
+    UNUSED(p_ref_data);
+
+    for (i=0; i<bta_dm_cb.device_list.count; i++)
+    {
+        if (bdcmp( bta_dm_cb.device_list.peer_device[i].peer_bdaddr, bd_addr) == 0 &&
+            bta_dm_cb.device_list.peer_device[i].conn_state == BTA_DM_CONNECTED)
+            break;
+    }
+
+    if (i < bta_dm_cb.device_list.count)
+    {
+        p_callback = bta_dm_cb.device_list.peer_device[i].p_encrypt_cback;
+        bta_dm_cb.device_list.peer_device[i].p_encrypt_cback = NULL;
+    }
+
+    switch (result)
+    {
+        case BTM_SUCCESS:
+            break;
+        case BTM_WRONG_MODE:
+            bta_status = BTA_WRONG_MODE;
+            break;
+        case BTM_NO_RESOURCES:
+            bta_status = BTA_NO_RESOURCES;
+            break;
+        case BTM_BUSY:
+            bta_status = BTA_BUSY;
+            break;
+        default:
+            bta_status = BTA_FAILURE;
+            break;
+    }
+
+    APPL_TRACE_DEBUG("bta_dm_encrypt_cback status =%d p_callback=0x%x", bta_status, p_callback);
+
+    if (p_callback)
+    {
+        (*p_callback)(bd_addr, transport, bta_status);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_set_encryption
+**
+** Description      This function to encrypt the link
+**
+** Returns          None
+**
+*******************************************************************************/
+void bta_dm_set_encryption (tBTA_DM_MSG *p_data)
+{
+    UINT8 i ;
+
+    APPL_TRACE_DEBUG("bta_dm_set_encryption"); //todo
+    if (!p_data->set_encryption.p_callback)
+    {
+        APPL_TRACE_ERROR("bta_dm_set_encryption callback is not provided");
+        return;
+    }
+    for (i=0; i<bta_dm_cb.device_list.count; i++)
+    {
+        if (bdcmp( bta_dm_cb.device_list.peer_device[i].peer_bdaddr, p_data->set_encryption.bd_addr) == 0 &&
+            bta_dm_cb.device_list.peer_device[i].conn_state == BTA_DM_CONNECTED)
+            break;
+    }
+    if (i < bta_dm_cb.device_list.count)
+    {
+        if (bta_dm_cb.device_list.peer_device[i].p_encrypt_cback)
+        {
+            APPL_TRACE_ERROR("earlier enc was not done for same device");
+            (*p_data->set_encryption.p_callback)(p_data->set_encryption.bd_addr,
+                                             p_data->set_encryption.transport,
+                                             BTA_BUSY);
+            return;
+        }
+
+        if (BTM_SetEncryption(p_data->set_encryption.bd_addr, p_data->set_encryption.transport,
+                              bta_dm_encrypt_cback, NULL, p_data->set_encryption.sec_act)
+                              == BTM_CMD_STARTED)
+        {
+            bta_dm_cb.device_list.peer_device[i].p_encrypt_cback = p_data->set_encryption.p_callback;
+        }
+    }
+}
+
+#if (BLE_INCLUDED == TRUE)
+/*******************************************************************************
+**
+** Function         bta_dm_observe_results_cb
+**
+** Description      Callback for BLE Observe result
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_dm_observe_results_cb (tBTM_INQ_RESULTS *p_inq, UINT8 *p_eir)
+{
+;
+    tBTA_DM_SEARCH     result;
+    tBTM_INQ_INFO      *p_inq_info;
+    APPL_TRACE_DEBUG("bta_dm_observe_results_cb")
+
+    bdcpy(result.inq_res.bd_addr, p_inq->remote_bd_addr);
+    result.inq_res.rssi = p_inq->rssi;
+    result.inq_res.ble_addr_type    = p_inq->ble_addr_type;
+    result.inq_res.inq_result_type  = p_inq->inq_result_type;
+    result.inq_res.device_type      = p_inq->device_type;
+    result.inq_res.flag             = p_inq->flag;
+#ifdef BLUETOOTH_RTK
+    memcpy(result.inq_res.dev_class, p_inq->dev_class, DEV_CLASS_LEN);
+#endif
+    /* application will parse EIR to find out remote device name */
+    result.inq_res.p_eir = p_eir;
+
+    if((p_inq_info = BTM_InqDbRead(p_inq->remote_bd_addr)) != NULL)
+    {
+        /* initialize remt_name_not_required to FALSE so that we get the name by default */
+        result.inq_res.remt_name_not_required = FALSE;
+    }
+
+    if(bta_dm_search_cb.p_scan_cback)
+        bta_dm_search_cb.p_scan_cback(BTA_DM_INQ_RES_EVT, &result);
+
+    if(p_inq_info)
+    {
+        /* application indicates if it knows the remote name, inside the callback
+         copy that to the inquiry data base*/
+        if(result.inq_res.remt_name_not_required)
+            p_inq_info->appl_knows_rem_name = TRUE;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_observe_cmpl_cb
+**
+** Description      Callback for BLE Observe complete
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_dm_observe_cmpl_cb (void * p_result)
+{
+    tBTA_DM_SEARCH  data;
+
+    APPL_TRACE_DEBUG("bta_dm_observe_cmpl_cb");
+
+    data.inq_cmpl.num_resps = ((tBTM_INQUIRY_CMPL *)p_result)->num_resp;
+    if (bta_dm_search_cb.p_scan_cback)
+    {
+        bta_dm_search_cb.p_scan_cback(BTA_DM_INQ_CMPL_EVT, &data);
+    }
+}
+
+#if (SMP_INCLUDED == TRUE)
+/*******************************************************************************
+**
+** Function         bta_dm_ble_smp_cback
+**
+** Description      Callback for BLE SMP
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static UINT8 bta_dm_ble_smp_cback (tBTM_LE_EVT event, BD_ADDR bda, tBTM_LE_EVT_DATA *p_data)
+{
+    tBTM_STATUS status = BTM_SUCCESS;
+    tBTA_DM_SEC sec_event;
+    char *p_name = NULL;
+
+    if (!bta_dm_cb.p_sec_cback)
+        return BTM_NOT_AUTHORIZED;
+
+    memset(&sec_event, 0, sizeof(tBTA_DM_SEC));
+    switch (event)
+    {
+        case BTM_LE_IO_REQ_EVT:
+#if (BTM_LOCAL_IO_CAPS != BTM_IO_CAP_NONE)
+
+            bta_dm_co_ble_io_req(bda,
+                                 &p_data->io_req.io_cap,
+                                 &p_data->io_req.oob_data,
+                                 &p_data->io_req.auth_req,
+                                 &p_data->io_req.max_key_size,
+                                 &p_data->io_req.init_keys,
+                                 &p_data->io_req.resp_keys);
+#endif
+            APPL_TRACE_EVENT("io mitm: %d oob_data:%d", p_data->io_req.auth_req, p_data->io_req.oob_data);
+
+            break;
+
+        case BTM_LE_SEC_REQUEST_EVT:
+            bdcpy(sec_event.ble_req.bd_addr, bda);
+            p_name = BTM_SecReadDevName(bda);
+            if (p_name != NULL)
+                strlcpy((char*)sec_event.ble_req.bd_name, p_name, BD_NAME_LEN);
+            else
+                sec_event.ble_req.bd_name[0] = 0;
+            bta_dm_cb.p_sec_cback(BTA_DM_BLE_SEC_REQ_EVT, &sec_event);
+            break;
+
+        case BTM_LE_KEY_NOTIF_EVT:
+            bdcpy(sec_event.key_notif.bd_addr, bda);
+            p_name = BTM_SecReadDevName(bda);
+            if (p_name != NULL)
+                strlcpy((char*)sec_event.key_notif.bd_name, p_name, BD_NAME_LEN);
+            else
+                sec_event.key_notif.bd_name[0] = 0;
+            sec_event.key_notif.passkey = p_data->key_notif;
+            bta_dm_cb.p_sec_cback(BTA_DM_BLE_PASSKEY_NOTIF_EVT, &sec_event);
+            break;
+
+        case BTM_LE_KEY_REQ_EVT:
+            bdcpy(sec_event.ble_req.bd_addr, bda);
+            bta_dm_cb.p_sec_cback(BTA_DM_BLE_PASSKEY_REQ_EVT, &sec_event);
+            break;
+
+        case BTM_LE_OOB_REQ_EVT:
+            bdcpy(sec_event.ble_req.bd_addr, bda);
+            bta_dm_cb.p_sec_cback(BTA_DM_BLE_OOB_REQ_EVT, &sec_event);
+            break;
+
+        case BTM_LE_NC_REQ_EVT:
+            bdcpy(sec_event.key_notif.bd_addr, bda);
+            strlcpy((char*)sec_event.key_notif.bd_name, bta_dm_get_remname(), (BD_NAME_LEN));
+            sec_event.key_notif.passkey = p_data->key_notif;
+            bta_dm_cb.p_sec_cback(BTA_DM_BLE_NC_REQ_EVT, &sec_event);
+            break;
+
+        case BTM_LE_KEY_EVT:
+            bdcpy(sec_event.ble_key.bd_addr, bda);
+            sec_event.ble_key.key_type = p_data->key.key_type;
+            sec_event.ble_key.p_key_value = p_data->key.p_key_value;
+            bta_dm_cb.p_sec_cback(BTA_DM_BLE_KEY_EVT, &sec_event);
+            break;
+
+        case BTM_LE_COMPLT_EVT:
+            bdcpy(sec_event.auth_cmpl.bd_addr, bda);
+#if BLE_INCLUDED == TRUE
+            BTM_ReadDevInfo(bda, &sec_event.auth_cmpl.dev_type, &sec_event.auth_cmpl.addr_type);
+#endif
+            p_name = BTM_SecReadDevName(bda);
+            if (p_name != NULL)
+                strlcpy((char*)sec_event.auth_cmpl.bd_name, p_name, (BD_NAME_LEN));
+            else
+                sec_event.auth_cmpl.bd_name[0] = 0;
+
+            if (p_data->complt.reason != 0)
+            {
+                sec_event.auth_cmpl.fail_reason = BTA_DM_AUTH_CONVERT_SMP_CODE(((UINT8)p_data->complt.reason));
+                /* delete this device entry from Sec Dev DB */
+                bta_dm_remove_sec_dev_entry (bda);
+            }
+            else
+            {
+                sec_event.auth_cmpl.success = TRUE;
+                /* We also register for Service Changed right after connect. */
+                if (!p_data->complt.smp_over_br)
+                    GATT_ConfigServiceChangeCCC(bda, TRUE, BT_TRANSPORT_LE);
+            }
+
+            if (bta_dm_cb.p_sec_cback)
+            {
+                //bta_dm_cb.p_sec_cback(BTA_DM_AUTH_CMPL_EVT, &sec_event);
+                bta_dm_cb.p_sec_cback(BTA_DM_BLE_AUTH_CMPL_EVT, &sec_event);
+            }
+            break;
+
+        default:
+            status = BTM_NOT_AUTHORIZED;
+            break;
+    }
+    return status;
+}
+#endif  /* SMP_INCLUDED == TRUE */
+
+/*******************************************************************************
+**
+** Function         bta_dm_ble_id_key_cback
+**
+** Description      Callback for BLE local ID keys
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_dm_ble_id_key_cback (UINT8 key_type, tBTM_BLE_LOCAL_KEYS *p_key)
+{
+    UINT8   evt;
+    tBTA_DM_SEC dm_key;
+
+    switch (key_type)
+    {
+        case BTM_BLE_KEY_TYPE_ID:
+        case BTM_BLE_KEY_TYPE_ER:
+            if (bta_dm_cb.p_sec_cback)
+            {
+                memcpy(&dm_key.ble_id_keys, p_key, sizeof(tBTM_BLE_LOCAL_KEYS));
+
+                evt = (key_type == BTM_BLE_KEY_TYPE_ID) ? BTA_DM_BLE_LOCAL_IR_EVT :\
+                      BTA_DM_BLE_LOCAL_ER_EVT;
+                bta_dm_cb.p_sec_cback(evt, &dm_key);
+            }
+            break;
+
+        default:
+            APPL_TRACE_DEBUG("Unknown key type %d", key_type);
+            break;
+    }
+    return;
+
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_add_blekey
+**
+** Description      This function adds an BLE Key to an security database entry.
+**                  This function shall only be called AFTER BTA_DmAddBleDevice has been called.
+**                  It is normally called during host startup to restore all required information
+**                  stored in the NVRAM.
+**
+** Parameters:
+**
+*******************************************************************************/
+void bta_dm_add_blekey (tBTA_DM_MSG *p_data)
+{
+    if (!BTM_SecAddBleKey (p_data->add_ble_key.bd_addr,
+                           (tBTM_LE_KEY_VALUE *)&p_data->add_ble_key.blekey,
+                           p_data->add_ble_key.key_type))
+    {
+        APPL_TRACE_ERROR ("BTA_DM: Error adding BLE Key for device %08x%04x",
+                           (p_data->add_ble_key.bd_addr[0]<<24)+(p_data->add_ble_key.bd_addr[1]<<16)+\
+                           (p_data->add_ble_key.bd_addr[2]<<8)+p_data->add_ble_key.bd_addr[3],
+                           (p_data->add_ble_key.bd_addr[4]<<8)+p_data->add_ble_key.bd_addr[5]);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_add_ble_device
+**
+** Description      This function adds an BLE device to an security database entry.
+**                  It is normally called during host startup to restore all required information
+**                  stored in the NVRAM.
+**
+** Parameters:
+**
+*******************************************************************************/
+void bta_dm_add_ble_device (tBTA_DM_MSG *p_data)
+{
+    if (!BTM_SecAddBleDevice (p_data->add_ble_device.bd_addr, NULL,
+                              p_data->add_ble_device.dev_type  ,
+                              p_data->add_ble_device.addr_type))
+    {
+        APPL_TRACE_ERROR ("BTA_DM: Error adding BLE Device for device %08x%04x",
+                           (p_data->add_ble_device.bd_addr[0]<<24)+(p_data->add_ble_device.bd_addr[1]<<16)+ \
+                           (p_data->add_ble_device.bd_addr[2]<<8)+p_data->add_ble_device.bd_addr[3],
+                           (p_data->add_ble_device.bd_addr[4]<<8)+p_data->add_ble_device.bd_addr[5]);
+    }
+}
+
+#ifdef BLUETOOTH_RTK
+/*******************************************************************************
+**
+** Function         bta_dm_add_ble_device_extra_info
+**
+** Description      This function adds an BLE device to an security database entry.
+**                  It is normally called during host startup to restore all required information
+**                  stored in the NVRAM.
+**
+** Parameters:
+**
+*******************************************************************************/
+void bta_dm_add_ble_device_extra_info (tBTA_DM_MSG *p_data)
+{
+    APPL_TRACE_DEBUG("bta_dm_add_ble_device_extra_info");
+    if(!BTM_SecAddBleDeviceExtraInfo (p_data->add_ble_device_extra_info.bd_addr,
+                                      p_data->add_ble_device_extra_info.bd_name,
+                                      p_data->add_ble_device_extra_info.dev_class))
+    {
+        APPL_TRACE_ERROR ("BTA_DM: Error adding BLE Device Extra Info for device %08x%04x",
+                           (p_data->add_ble_device_extra_info.bd_addr[0]<<24)+(p_data->add_ble_device_extra_info.bd_addr[1]<<16)+ \
+                           (p_data->add_ble_device_extra_info.bd_addr[2]<<8)+p_data->add_ble_device_extra_info.bd_addr[3],
+                           (p_data->add_ble_device_extra_info.bd_addr[4]<<8)+p_data->add_ble_device_extra_info.bd_addr[5]);
+    }
+}
+
+#endif
+
+/*******************************************************************************
+**
+** Function         bta_dm_add_ble_device
+**
+** Description      This function adds an BLE device to an security database entry.
+**                  It is normally called during host startup to restore all required information
+**                  stored in the NVRAM.
+**
+** Parameters:
+**
+*******************************************************************************/
+void bta_dm_ble_passkey_reply (tBTA_DM_MSG *p_data)
+{
+    if (p_data->pin_reply.accept)
+    {
+        BTM_BlePasskeyReply(p_data->ble_passkey_reply.bd_addr, BTM_SUCCESS, p_data->ble_passkey_reply.passkey);
+    }
+    else
+    {
+        BTM_BlePasskeyReply(p_data->ble_passkey_reply.bd_addr, BTM_NOT_AUTHORIZED, p_data->ble_passkey_reply.passkey);
+    }
+
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_ble_confirm_reply
+**
+** Description      This is response to SM numeric comparison request submitted
+**                  to application.
+**
+** Parameters:
+**
+*******************************************************************************/
+void bta_dm_ble_confirm_reply (tBTA_DM_MSG *p_data)
+{
+    if (p_data->confirm.accept)
+    {
+        BTM_BleConfirmReply(p_data->confirm.bd_addr, BTM_SUCCESS);
+    }
+    else
+    {
+        BTM_BleConfirmReply(p_data->ble_passkey_reply.bd_addr, BTM_NOT_AUTHORIZED);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_security_grant
+**
+** Description      This function grant SMP security request access.
+**
+** Parameters:
+**
+*******************************************************************************/
+void bta_dm_security_grant (tBTA_DM_MSG *p_data)
+{
+    BTM_SecurityGrant(p_data->ble_sec_grant.bd_addr, p_data->ble_sec_grant.res);
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_ble_set_bg_conn_type
+**
+** Description      This function set the BLE background connection type
+**
+** Parameters:
+**
+*******************************************************************************/
+void bta_dm_ble_set_bg_conn_type (tBTA_DM_MSG *p_data)
+{
+    BTM_BleSetBgConnType(p_data->ble_set_bd_conn_type.bg_conn_type,
+                         p_data->ble_set_bd_conn_type.p_select_cback);
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_ble_set_conn_params
+**
+** Description      This function set the preferred connection parameters.
+**
+** Parameters:
+**
+*******************************************************************************/
+void bta_dm_ble_set_conn_params (tBTA_DM_MSG *p_data)
+{
+    BTM_BleSetPrefConnParams(p_data->ble_set_conn_params.peer_bda,
+                             p_data->ble_set_conn_params.conn_int_min,
+                             p_data->ble_set_conn_params.conn_int_max,
+                             p_data->ble_set_conn_params.slave_latency,
+                             p_data->ble_set_conn_params.supervision_tout);
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_ble_set_conn_scan_params
+**
+** Description      This function sets BLE scan parameters.
+**
+** Parameters:
+**
+*******************************************************************************/
+void bta_dm_ble_set_scan_params(tBTA_DM_MSG *p_data)
+{
+    BTM_BleSetScanParams(p_data->ble_set_scan_params.client_if,
+                         p_data->ble_set_scan_params.scan_int,
+                         p_data->ble_set_scan_params.scan_window,
+                         p_data->ble_set_scan_params.scan_mode,
+                         p_data->ble_set_scan_params.scan_param_setup_cback);
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_ble_set_conn_scan_params
+**
+** Description      This function set the preferred connection scan parameters.
+**
+** Parameters:
+**
+*******************************************************************************/
+void bta_dm_ble_set_conn_scan_params (tBTA_DM_MSG *p_data)
+{
+    BTM_BleSetConnScanParams(p_data->ble_set_conn_scan_params.scan_int,
+                             p_data->ble_set_conn_scan_params.scan_window);
+}
+/*******************************************************************************
+**
+** Function         bta_dm_ble_update_conn_params
+**
+** Description      This function update LE connection parameters.
+**
+** Parameters:
+**
+*******************************************************************************/
+void bta_dm_ble_update_conn_params (tBTA_DM_MSG *p_data)
+{
+    if (!L2CA_UpdateBleConnParams(p_data->ble_update_conn_params.bd_addr,
+                                 p_data->ble_update_conn_params.min_int,
+                                 p_data->ble_update_conn_params.max_int,
+                                 p_data->ble_update_conn_params.latency,
+                                 p_data->ble_update_conn_params.timeout))
+    {
+        APPL_TRACE_ERROR("Update connection parameters failed!");
+    }
+}
+
+#if BLE_PRIVACY_SPT == TRUE
+/*******************************************************************************
+**
+** Function         bta_dm_ble_config_local_privacy
+**
+** Description      This function set the local device LE privacy settings.
+**
+** Parameters:
+**
+*******************************************************************************/
+void bta_dm_ble_config_local_privacy (tBTA_DM_MSG *p_data)
+{
+    BTM_BleConfigPrivacy (p_data->ble_local_privacy.privacy_enable);
+}
+#endif
+
+/*******************************************************************************
+**
+** Function         bta_dm_ble_observe
+**
+** Description      This function set the preferred connection scan parameters.
+**
+** Parameters:
+**
+*******************************************************************************/
+void bta_dm_ble_observe (tBTA_DM_MSG *p_data)
+{
+    tBTM_STATUS status;
+    if (p_data->ble_observe.start)
+    {
+        /*Save the  callback to be called when a scan results are available */
+        bta_dm_search_cb.p_scan_cback = p_data->ble_observe.p_cback;
+        if ((status = BTM_BleObserve(TRUE, p_data->ble_observe.duration,
+                            bta_dm_observe_results_cb, bta_dm_observe_cmpl_cb))!= BTM_CMD_STARTED)
+        {
+            tBTA_DM_SEARCH  data;
+            APPL_TRACE_WARNING(" %s BTM_BleObserve  failed. status %d",__FUNCTION__,status);
+            data.inq_cmpl.num_resps = 0;
+            if (bta_dm_search_cb.p_scan_cback)
+            {
+                bta_dm_search_cb.p_scan_cback(BTA_DM_INQ_CMPL_EVT, &data);
+            }
+        }
+    }
+    else
+    {
+        bta_dm_search_cb.p_scan_cback = NULL;
+        BTM_BleObserve(FALSE, 0, NULL,NULL );
+    }
+}
+/*******************************************************************************
+**
+** Function         bta_dm_ble_set_adv_params
+**
+** Description      This function set the adv parameters.
+**
+** Parameters:
+**
+*******************************************************************************/
+void bta_dm_ble_set_adv_params (tBTA_DM_MSG *p_data)
+{
+    BTM_BleSetAdvParams(p_data->ble_set_adv_params.adv_int_min,
+                        p_data->ble_set_adv_params.adv_int_max,
+                        p_data->ble_set_adv_params.p_dir_bda,
+                        BTA_DM_BLE_ADV_CHNL_MAP);
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_ble_set_adv_config
+**
+** Description      This function set the customized ADV data configuration
+**
+** Parameters:
+**
+*******************************************************************************/
+void bta_dm_ble_set_adv_config (tBTA_DM_MSG *p_data)
+{
+    tBTA_STATUS status = BTA_FAILURE;
+
+    if (BTM_BleWriteAdvData(p_data->ble_set_adv_data.data_mask,
+                        (tBTM_BLE_ADV_DATA *)&p_data->ble_set_adv_data.adv_cfg) == BTM_SUCCESS)
+    {
+        status = BTA_SUCCESS;
+    }
+
+    if (p_data->ble_set_adv_data.p_adv_data_cback)
+        (*p_data->ble_set_adv_data.p_adv_data_cback)(status);
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_ble_set_scan_rsp
+**
+** Description      This function set the customized ADV scan resp. configuration
+**
+** Parameters:
+**
+*******************************************************************************/
+void bta_dm_ble_set_scan_rsp (tBTA_DM_MSG *p_data)
+{
+    tBTA_STATUS status = BTA_FAILURE;
+
+    if(BTM_BleWriteScanRsp(p_data->ble_set_adv_data.data_mask,
+                        (tBTM_BLE_ADV_DATA *)&p_data->ble_set_adv_data.adv_cfg) == BTM_SUCCESS)
+    {
+        status = BTA_SUCCESS;
+    }
+
+    if (p_data->ble_set_adv_data.p_adv_data_cback)
+        (*p_data->ble_set_adv_data.p_adv_data_cback)(status);
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_ble_set_data_length
+**
+** Description      This function set the maximum transmission packet size
+**
+** Parameters
+**
+*******************************************************************************/
+void bta_dm_ble_set_data_length(tBTA_DM_MSG *p_data)
+{
+    if (BTM_SetBleDataLength(p_data->ble_set_data_length.remote_bda,
+                        p_data->ble_set_data_length.tx_data_length) != BTM_SUCCESS)
+    {
+        APPL_TRACE_ERROR("%s failed", __FUNCTION__);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_ble_broadcast
+**
+** Description      Starts or stops LE broadcasts
+**
+** Parameters:
+**
+*******************************************************************************/
+void bta_dm_ble_broadcast (tBTA_DM_MSG *p_data)
+{
+    BTM_BleBroadcast(p_data->ble_observe.start);
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_ble_multi_adv_enb
+**
+** Description      This function enables a single advertising instance
+**
+** Parameters:
+**
+*******************************************************************************/
+void bta_dm_ble_multi_adv_enb(tBTA_DM_MSG *p_data)
+{
+    tBTM_STATUS btm_status = 0;
+
+    bta_dm_cb.p_multi_adv_cback = p_data->ble_multi_adv_enb.p_cback;
+    if(BTM_BleMaxMultiAdvInstanceCount() > 0 && NULL != p_data->ble_multi_adv_enb.p_ref)
+    {
+        btm_status = BTM_BleEnableAdvInstance((tBTM_BLE_ADV_PARAMS*)
+                                            p_data->ble_multi_adv_enb.p_params,
+                                            p_data->ble_multi_adv_enb.p_cback,
+                                            p_data->ble_multi_adv_enb.p_ref);
+    }
+
+    if(BTM_CMD_STARTED != btm_status)
+    {
+        bta_dm_cb.p_multi_adv_cback(BTA_BLE_MULTI_ADV_ENB_EVT, 0xFF,
+                                    p_data->ble_multi_adv_enb.p_ref, BTA_FAILURE);
+    }
+}
+/*******************************************************************************
+**
+** Function         bta_dm_ble_multi_adv_param_upd
+**
+** Description      This function updates multiple advertising instance parameters
+**
+** Parameters:
+**
+*******************************************************************************/
+void bta_dm_ble_multi_adv_upd_param(tBTA_DM_MSG *p_data)
+{
+    tBTM_STATUS btm_status = 0;
+    void *p_ref = NULL;
+
+    if(BTM_BleMaxMultiAdvInstanceCount() > 0 && p_data->ble_multi_adv_param.inst_id > 0
+        && p_data->ble_multi_adv_param.inst_id < BTM_BleMaxMultiAdvInstanceCount())
+    {
+        btm_status = BTM_BleUpdateAdvInstParam(p_data->ble_multi_adv_param.inst_id,
+                         (tBTM_BLE_ADV_PARAMS*)p_data->ble_multi_adv_param.p_params);
+    }
+
+    if(BTM_CMD_STARTED != btm_status)
+    {
+       p_ref = btm_ble_multi_adv_get_ref(p_data->ble_multi_adv_param.inst_id);
+       bta_dm_cb.p_multi_adv_cback(BTA_BLE_MULTI_ADV_PARAM_EVT,
+                                   p_data->ble_multi_adv_param.inst_id, p_ref, BTA_FAILURE);
+    }
+}
+/*******************************************************************************
+**
+** Function         bta_dm_ble_multi_adv_data
+**
+** Description      This function write multiple advertising instance adv data
+**                  or scan response data
+**
+** Parameters:
+**
+*******************************************************************************/
+void bta_dm_ble_multi_adv_data(tBTA_DM_MSG *p_data)
+{
+    tBTM_STATUS btm_status = 0;
+    void *p_ref = NULL;
+
+    if(BTM_BleMaxMultiAdvInstanceCount() > 0 && p_data->ble_multi_adv_data.inst_id > 0
+        && p_data->ble_multi_adv_data.inst_id < BTM_BleMaxMultiAdvInstanceCount())
+    {
+        btm_status = BTM_BleCfgAdvInstData(p_data->ble_multi_adv_data.inst_id,
+                        p_data->ble_multi_adv_data.is_scan_rsp,
+                        p_data->ble_multi_adv_data.data_mask,
+                        (tBTM_BLE_ADV_DATA*)&p_data->ble_multi_adv_data.data);
+    }
+
+    if(BTM_CMD_STARTED != btm_status)
+    {
+       p_ref = btm_ble_multi_adv_get_ref(p_data->ble_multi_adv_data.inst_id);
+       bta_dm_cb.p_multi_adv_cback(BTA_BLE_MULTI_ADV_DATA_EVT,
+                                   p_data->ble_multi_adv_data.inst_id, p_ref, BTA_FAILURE);
+    }
+
+}
+/*******************************************************************************
+**
+** Function         btm_dm_ble_multi_adv_disable
+**
+** Description      This function disable a single adv instance
+**
+** Parameters:
+**
+*******************************************************************************/
+void btm_dm_ble_multi_adv_disable(tBTA_DM_MSG *p_data)
+{
+    tBTM_STATUS btm_status = 0;
+    void *p_ref = NULL;
+
+    if(BTM_BleMaxMultiAdvInstanceCount() > 0 && p_data->ble_multi_adv_disable.inst_id > 0
+        && p_data->ble_multi_adv_disable.inst_id < BTM_BleMaxMultiAdvInstanceCount())
+    {
+        btm_status = BTM_BleDisableAdvInstance(p_data->ble_multi_adv_disable.inst_id);
+    }
+
+    if(BTM_CMD_STARTED != btm_status)
+    {
+       p_ref = btm_ble_multi_adv_get_ref(p_data->ble_multi_adv_disable.inst_id);
+       bta_dm_cb.p_multi_adv_cback(BTA_BLE_MULTI_ADV_DISABLE_EVT,
+                                   p_data->ble_multi_adv_disable.inst_id, p_ref, BTA_FAILURE);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_ble_setup_storage
+**
+** Description      This function configures up the storage parameters for ADV batch scanning
+**
+** Parameters:
+**
+*******************************************************************************/
+void bta_dm_ble_setup_storage (tBTA_DM_MSG *p_data)
+{
+    tBTM_STATUS btm_status = 0;
+    tBTM_BLE_VSC_CB cmn_ble_vsc_cb;
+
+    BTM_BleGetVendorCapabilities(&cmn_ble_vsc_cb);
+
+    if (0 != cmn_ble_vsc_cb.tot_scan_results_strg)
+    {
+        btm_status = BTM_BleSetStorageConfig(p_data->ble_set_storage.batch_scan_full_max,
+                                             p_data->ble_set_storage.batch_scan_trunc_max,
+                                             p_data->ble_set_storage.batch_scan_notify_threshold,
+                                             p_data->ble_set_storage.p_setup_cback,
+                                             p_data->ble_set_storage.p_thres_cback,
+                                             p_data->ble_set_storage.p_read_rep_cback,
+                                             p_data->ble_set_storage.ref_value);
+    }
+
+    if(BTM_CMD_STARTED != btm_status)
+       bta_ble_scan_setup_cb(BTM_BLE_BATCH_SCAN_CFG_STRG_EVT, p_data->ble_set_storage.ref_value,
+                             btm_status);
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_ble_enable_batch_scan
+**
+** Description      This function sets up the parameters and enables batch scan
+**
+** Parameters:
+**
+*******************************************************************************/
+void bta_dm_ble_enable_batch_scan (tBTA_DM_MSG *p_data)
+{
+    tBTM_STATUS btm_status = 0;
+    tBTM_BLE_VSC_CB cmn_ble_vsc_cb;
+
+    BTM_BleGetVendorCapabilities(&cmn_ble_vsc_cb);
+
+    if (0 != cmn_ble_vsc_cb.tot_scan_results_strg)
+    {
+        btm_status = BTM_BleEnableBatchScan(p_data->ble_enable_scan.scan_mode,
+                                            p_data->ble_enable_scan.scan_int,
+                                            p_data->ble_enable_scan.scan_window,
+                                            p_data->ble_enable_scan.discard_rule,
+                                            p_data->ble_enable_scan.addr_type,
+                                            p_data->ble_enable_scan.ref_value);
+    }
+
+    if(BTM_CMD_STARTED != btm_status)
+       bta_ble_scan_setup_cb(BTM_BLE_BATCH_SCAN_ENABLE_EVT, p_data->ble_enable_scan.ref_value,
+                             btm_status);
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_ble_disable_batch_scan
+**
+** Description      This function disables the batch scan
+**
+** Parameters:
+**
+*******************************************************************************/
+void bta_dm_ble_disable_batch_scan (tBTA_DM_MSG *p_data)
+{
+    UNUSED(p_data);
+    tBTM_STATUS btm_status = 0;
+    tBTM_BLE_VSC_CB cmn_ble_vsc_cb;
+
+    BTM_BleGetVendorCapabilities(&cmn_ble_vsc_cb);
+
+    if (0 != cmn_ble_vsc_cb.tot_scan_results_strg)
+    {
+        btm_status = BTM_BleDisableBatchScan(p_data->ble_disable_scan.ref_value);
+    }
+
+    if(BTM_CMD_STARTED != btm_status)
+       bta_ble_scan_setup_cb(BTM_BLE_BATCH_SCAN_DISABLE_EVT, p_data->ble_enable_scan.ref_value,
+                             btm_status);
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_ble_read_scan_reports
+**
+** Description      This function reads the batch scan reports
+**
+** Parameters:
+**
+*******************************************************************************/
+void bta_dm_ble_read_scan_reports(tBTA_DM_MSG *p_data)
+{
+    tBTM_STATUS btm_status = 0;
+    tBTM_BLE_VSC_CB cmn_ble_vsc_cb;
+
+    BTM_BleGetVendorCapabilities(&cmn_ble_vsc_cb);
+
+    if (0 != cmn_ble_vsc_cb.tot_scan_results_strg)
+    {
+        btm_status = BTM_BleReadScanReports(p_data->ble_read_reports.scan_type,
+                                            p_data->ble_read_reports.ref_value);
+    }
+
+    if(BTM_CMD_STARTED != btm_status)
+       bta_ble_scan_setup_cb(BTM_BLE_BATCH_SCAN_READ_REPTS_EVT, p_data->ble_enable_scan.ref_value,
+                             btm_status);
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_ble_track_advertiser
+**
+** Description      This function tracks the specific advertiser
+**
+** Parameters:
+**
+*******************************************************************************/
+void bta_dm_ble_track_advertiser(tBTA_DM_MSG *p_data)
+{
+    tBTM_STATUS btm_status = 0;
+    BD_ADDR bda;
+    memset(&bda, 0 , sizeof(BD_ADDR));
+    tBTM_BLE_VSC_CB cmn_ble_vsc_cb;
+    tBTA_DM_BLE_TRACK_ADV_DATA track_adv_data;
+
+    BTM_BleGetVendorCapabilities(&cmn_ble_vsc_cb);
+
+    if (0 != cmn_ble_vsc_cb.tot_scan_results_strg)
+    {
+        btm_status = BTM_BleTrackAdvertiser((tBTM_BLE_TRACK_ADV_CBACK *)
+                                            p_data->ble_track_advert.p_track_adv_cback,
+                                            p_data->ble_track_advert.ref_value);
+    }
+
+    if(BTM_CMD_STARTED != btm_status)
+    {
+        memset(&track_adv_data, 0, sizeof(tBTA_DM_BLE_TRACK_ADV_DATA));
+        track_adv_data.advertiser_info_present = NO_ADV_INFO_PRESENT; /* Indicates failure */
+        track_adv_data.client_if = (UINT8)p_data->ble_track_advert.ref_value;
+        p_data->ble_track_advert.p_track_adv_cback(&track_adv_data);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_ble_scan_setup_cb
+**
+** Description      Handle the setup callback from BTM layer and forward it to app layer
+**
+** Parameters:
+**
+*******************************************************************************/
+void bta_ble_scan_setup_cb(tBTM_BLE_BATCH_SCAN_EVT evt, tBTM_BLE_REF_VALUE ref_value,
+                                  tBTM_STATUS status)
+{
+    tBTA_BLE_BATCH_SCAN_EVT bta_evt = 0;
+
+    APPL_TRACE_DEBUG("bta_ble_scan_setup_cb : evt: %d, ref_value: %d, status:%d", evt,
+                      ref_value, status);
+
+    switch(evt)
+    {
+        case BTM_BLE_BATCH_SCAN_ENABLE_EVT:
+           bta_evt = BTA_BLE_BATCH_SCAN_ENB_EVT;
+           break;
+        case BTM_BLE_BATCH_SCAN_CFG_STRG_EVT:
+           bta_evt = BTA_BLE_BATCH_SCAN_CFG_STRG_EVT;
+           break;
+        case BTM_BLE_BATCH_SCAN_DISABLE_EVT:
+            bta_evt = BTA_BLE_BATCH_SCAN_DIS_EVT;
+            break;
+        case BTM_BLE_BATCH_SCAN_PARAM_EVT:
+            bta_evt = BTA_BLE_BATCH_SCAN_PARAM_EVT;
+            break;
+        default:
+            break;
+    }
+
+    if(NULL != bta_dm_cb.p_setup_cback)
+       bta_dm_cb.p_setup_cback(bta_evt, ref_value, status);
+}
+
+
+#if BLE_ANDROID_CONTROLLER_SCAN_FILTER == TRUE
+/*******************************************************************************
+**
+** Function         bta_ble_scan_pf_cmpl
+**
+** Description      ADV payload filtering operation complete callback
+**
+**
+** Returns         TRUE if handled, otherwise FALSE.
+**
+*******************************************************************************/
+static void bta_ble_scan_cfg_cmpl(tBTM_BLE_PF_ACTION action, tBTM_BLE_SCAN_COND_OP cfg_op,
+                                 tBTM_BLE_PF_AVBL_SPACE avbl_space, tBTM_STATUS status,
+                                 tBTM_BLE_REF_VALUE ref_value)
+{
+    tBTA_STATUS st = (status == BTM_SUCCESS) ? BTA_SUCCESS: BTA_FAILURE;
+
+    APPL_TRACE_DEBUG("bta_ble_scan_cfg_cmpl: %d, %d, %d, %d", action, cfg_op, avbl_space, status);
+
+    if(bta_dm_cb.p_scan_filt_cfg_cback)
+       bta_dm_cb.p_scan_filt_cfg_cback(action, cfg_op, avbl_space, st, ref_value);
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_cfg_filter_cond
+**
+** Description      This function configure adv payload filtering condition
+**
+** Parameters:
+**
+*******************************************************************************/
+void bta_dm_cfg_filter_cond (tBTA_DM_MSG *p_data)
+{
+    tBTM_STATUS st = BTM_MODE_UNSUPPORTED;
+    tBTA_STATUS status = BTA_FAILURE;
+
+    tBTM_BLE_VSC_CB cmn_vsc_cb;
+
+    APPL_TRACE_DEBUG("bta_dm_cfg_filter_cond");
+    BTM_BleGetVendorCapabilities(&cmn_vsc_cb);
+    if(0 != cmn_vsc_cb.filter_support)
+    {
+        if ((st = BTM_BleCfgFilterCondition(p_data->ble_cfg_filter_cond.action,
+                            p_data->ble_cfg_filter_cond.cond_type,
+                            (tBTM_BLE_PF_FILT_INDEX)p_data->ble_cfg_filter_cond.filt_index,
+                            (tBTM_BLE_PF_COND_PARAM *)p_data->ble_cfg_filter_cond.p_cond_param,
+                            bta_ble_scan_cfg_cmpl, p_data->ble_cfg_filter_cond.ref_value))
+                == BTM_CMD_STARTED)
+        {
+            bta_dm_cb.p_scan_filt_cfg_cback = p_data->ble_cfg_filter_cond.p_filt_cfg_cback;
+            return;
+        }
+    }
+
+    if (p_data->ble_cfg_filter_cond.p_filt_cfg_cback)
+        p_data->ble_cfg_filter_cond.p_filt_cfg_cback(BTA_DM_BLE_PF_CONFIG_EVT,
+                                            p_data->ble_cfg_filter_cond.cond_type, 0, status,
+                                            p_data->ble_cfg_filter_cond.ref_value);
+    return;
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_enable_scan_filter
+**
+** Description      This function enable/disable adv payload filtering condition
+**
+** Parameters:
+**
+*******************************************************************************/
+void bta_dm_enable_scan_filter(tBTA_DM_MSG *p_data)
+{
+    tBTM_STATUS st = BTM_MODE_UNSUPPORTED;
+    tBTA_STATUS status = BTA_FAILURE;
+
+    tBTM_BLE_VSC_CB cmn_vsc_cb;
+    APPL_TRACE_DEBUG("bta_dm_enable_scan_filter");
+    BTM_BleGetVendorCapabilities(&cmn_vsc_cb);
+
+    if(0 != cmn_vsc_cb.filter_support)
+    {
+        if((st = BTM_BleEnableDisableFilterFeature(p_data->ble_enable_scan_filt.action,
+                   p_data->ble_enable_scan_filt.p_filt_status_cback,
+                   (tBTM_BLE_REF_VALUE)p_data->ble_enable_scan_filt.ref_value)) == BTM_CMD_STARTED)
+        bta_dm_cb.p_scan_filt_status_cback = p_data->ble_enable_scan_filt.p_filt_status_cback;
+        return;
+    }
+
+    if (p_data->ble_enable_scan_filt.p_filt_status_cback)
+        p_data->ble_enable_scan_filt.p_filt_status_cback (BTA_DM_BLE_PF_ENABLE_EVT,
+                                            p_data->ble_enable_scan_filt.ref_value, status);
+
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_scan_filter_param_setup
+**
+** Description      This function sets up scan filter params
+**
+** Parameters:
+**
+*******************************************************************************/
+void bta_dm_scan_filter_param_setup (tBTA_DM_MSG *p_data)
+{
+    tBTM_STATUS st = BTM_MODE_UNSUPPORTED;
+    tBTA_STATUS status = BTA_FAILURE;
+
+    tBTM_BLE_VSC_CB cmn_vsc_cb;
+
+    APPL_TRACE_DEBUG("bta_dm_scan_filter_param_setup");
+    BTM_BleGetVendorCapabilities(&cmn_vsc_cb);
+    if(0 != cmn_vsc_cb.filter_support)
+    {
+        if ((st = BTM_BleAdvFilterParamSetup(p_data->ble_scan_filt_param_setup.action,
+                   p_data->ble_scan_filt_param_setup.filt_index,
+                  (tBTM_BLE_PF_FILT_PARAMS *)&p_data->ble_scan_filt_param_setup.filt_params,
+                   p_data->ble_scan_filt_param_setup.p_target,
+                   p_data->ble_scan_filt_param_setup.p_filt_param_cback,
+                   p_data->ble_scan_filt_param_setup.ref_value)) == BTM_CMD_STARTED)
+        {
+            bta_dm_cb.p_scan_filt_param_cback = p_data->ble_scan_filt_param_setup.p_filt_param_cback;
+            return;
+        }
+    }
+
+    if (p_data->ble_scan_filt_param_setup.p_filt_param_cback)
+        p_data->ble_scan_filt_param_setup.p_filt_param_cback (BTA_DM_BLE_PF_ENABLE_EVT, 0,
+                                        p_data->ble_scan_filt_param_setup.ref_value, status);
+
+    return;
+}
+#endif
+
+/*******************************************************************************
+**
+** Function         bta_ble_enable_scan_cmpl
+**
+** Description      ADV payload filtering enable / disable complete callback
+**
+**
+** Returns          None
+**
+*******************************************************************************/
+static void bta_ble_energy_info_cmpl(tBTM_BLE_TX_TIME_MS tx_time,
+                                        tBTM_BLE_RX_TIME_MS rx_time,
+                                        tBTM_BLE_IDLE_TIME_MS idle_time,
+                                        tBTM_BLE_ENERGY_USED  energy_used,
+                                        tBTM_STATUS status)
+{
+    tBTA_STATUS st = (status == BTM_SUCCESS) ? BTA_SUCCESS: BTA_FAILURE;
+    tBTA_DM_CONTRL_STATE ctrl_state = 0;
+
+    if (BTA_SUCCESS == st)
+       ctrl_state = bta_dm_pm_obtain_controller_state();
+
+    if (bta_dm_cb.p_energy_info_cback)
+        bta_dm_cb.p_energy_info_cback(tx_time, rx_time, idle_time, energy_used, ctrl_state, st);
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_ble_get_energy_info
+**
+** Description      This function obtains the energy info
+**
+** Parameters:
+**
+*******************************************************************************/
+void bta_dm_ble_get_energy_info(tBTA_DM_MSG *p_data)
+{
+    tBTM_STATUS btm_status = 0;
+
+    bta_dm_cb.p_energy_info_cback = p_data->ble_energy_info.p_energy_info_cback;
+    btm_status = BTM_BleGetEnergyInfo(bta_ble_energy_info_cmpl);
+    if (BTM_CMD_STARTED != btm_status)
+        bta_ble_energy_info_cmpl(0, 0, 0, 0, btm_status);
+}
+
+#if ((defined BTA_GATT_INCLUDED) &&  (BTA_GATT_INCLUDED == TRUE))
+#ifndef BTA_DM_GATT_CLOSE_DELAY_TOUT
+#define BTA_DM_GATT_CLOSE_DELAY_TOUT    1000
+#endif
+
+/*******************************************************************************
+**
+** Function         bta_dm_gattc_register
+**
+** Description      Register with GATTC in DM if BLE is needed.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_dm_gattc_register(void)
+{
+    tBT_UUID                app_uuid = {LEN_UUID_128,{0}};
+
+    if (bta_dm_search_cb.client_if == BTA_GATTS_INVALID_IF)
+    {
+        memset (&app_uuid.uu.uuid128, 0x87, LEN_UUID_128);
+        BTA_GATTC_AppRegister(&app_uuid, bta_dm_gattc_callback);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btm_dm_start_disc_gatt_services
+**
+** Description      This function starts a GATT service search request.
+**
+** Parameters:
+**
+*******************************************************************************/
+static void btm_dm_start_disc_gatt_services (UINT16 conn_id)
+{
+    tBT_UUID    *p_uuid = bta_dm_search_cb.p_srvc_uuid +
+                          bta_dm_search_cb.num_uuid - bta_dm_search_cb.uuid_to_search;
+
+    p_uuid = bta_dm_search_cb.p_srvc_uuid +
+             bta_dm_search_cb.num_uuid - bta_dm_search_cb.uuid_to_search;
+
+    /* always search for all services */
+    BTA_GATTC_ServiceSearchRequest(conn_id, p_uuid);
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_gatt_disc_result
+**
+** Description      This function process the GATT service search result.
+**
+** Parameters:
+**
+*******************************************************************************/
+static void bta_dm_gatt_disc_result(tBTA_GATT_ID service_id)
+{
+    tBTA_DM_SEARCH   result;
+
+    /*
+        * This logic will not work for gatt case.  We are checking against the bluetooth profiles here
+        * just copy the GATTID in raw data field and send it across.
+        */
+
+
+    if ( bta_dm_search_cb.ble_raw_used + sizeof(tBTA_GATT_ID) < bta_dm_search_cb.ble_raw_size )
+    {
+        APPL_TRACE_DEBUG("ADDING BLE SERVICE uuid=0x%x, ble_ptr = 0x%x, ble_raw_used = 0x%x",
+            service_id.uuid.uu.uuid16,bta_dm_search_cb.p_ble_rawdata,bta_dm_search_cb.ble_raw_used);
+
+        if(bta_dm_search_cb.p_ble_rawdata)
+        {
+            memcpy((bta_dm_search_cb.p_ble_rawdata + bta_dm_search_cb.ble_raw_used), &service_id,
+                   sizeof(service_id) );
+
+            bta_dm_search_cb.ble_raw_used += sizeof(service_id);
+        }
+        else
+        {
+            APPL_TRACE_ERROR("p_ble_rawdata is NULL");
+        }
+
+    }
+    else
+    {
+        APPL_TRACE_ERROR("%s out of room to accomodate more service ids ble_raw_size = %d ble_raw_used = %d", __FUNCTION__,bta_dm_search_cb.ble_raw_size, bta_dm_search_cb.ble_raw_used );
+    }
+
+    LOG_INFO(LOG_TAG, "%s service_id_uuid_len=%d ", __func__, service_id.uuid.len);
+    if ( bta_dm_search_cb.state != BTA_DM_SEARCH_IDLE)
+    {
+
+        /* send result back to app now, one by one */
+        bdcpy (result.disc_ble_res.bd_addr, bta_dm_search_cb.peer_bdaddr);
+        strlcpy((char*)result.disc_ble_res.bd_name, bta_dm_get_remname(), BD_NAME_LEN);
+        memcpy(&result.disc_ble_res.service, &service_id.uuid, sizeof(tBT_UUID));
+
+        bta_dm_search_cb.p_search_cback(BTA_DM_DISC_BLE_RES_EVT, &result);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_gatt_disc_complete
+**
+** Description      This function process the GATT service search complete.
+**
+** Parameters:
+**
+*******************************************************************************/
+static void bta_dm_gatt_disc_complete(UINT16 conn_id, tBTA_GATT_STATUS status)
+{
+    APPL_TRACE_DEBUG("%s conn_id = %d", __func__, conn_id);
+
+    if (bta_dm_search_cb.uuid_to_search > 0)
+        bta_dm_search_cb.uuid_to_search --;
+
+    if (status == BTA_GATT_OK && bta_dm_search_cb.uuid_to_search > 0) {
+        btm_dm_start_disc_gatt_services(conn_id);
+    } else {
+        tBTA_DM_MSG *p_msg = (tBTA_DM_MSG *)osi_malloc(sizeof(tBTA_DM_MSG));
+
+        bta_dm_search_cb.uuid_to_search = 0;
+
+        /* no more services to be discovered */
+        p_msg->hdr.event = BTA_DM_DISCOVERY_RESULT_EVT;
+        p_msg->disc_result.result.disc_res.result = (status == BTA_GATT_OK) ? BTA_SUCCESS :BTA_FAILURE;
+        APPL_TRACE_DEBUG("%s service found: 0x%08x", __func__,
+                         bta_dm_search_cb.services_found);
+        p_msg->disc_result.result.disc_res.services = bta_dm_search_cb.services_found;
+        p_msg->disc_result.result.disc_res.num_uuids = 0;
+        p_msg->disc_result.result.disc_res.p_uuid_list = NULL;
+        bdcpy(p_msg->disc_result.result.disc_res.bd_addr,
+              bta_dm_search_cb.peer_bdaddr);
+        strlcpy((char*)p_msg->disc_result.result.disc_res.bd_name,
+                bta_dm_get_remname(), BD_NAME_LEN);
+
+        p_msg->disc_result.result.disc_res.device_type |= BT_DEVICE_TYPE_BLE;
+        if (bta_dm_search_cb.ble_raw_used > 0) {
+            p_msg->disc_result.result.disc_res.p_raw_data =
+                osi_malloc(bta_dm_search_cb.ble_raw_used);
+
+            memcpy(p_msg->disc_result.result.disc_res.p_raw_data,
+                   bta_dm_search_cb.p_ble_rawdata,
+                   bta_dm_search_cb.ble_raw_used);
+
+            p_msg->disc_result.result.disc_res.raw_data_size =
+                bta_dm_search_cb.ble_raw_used;
+        } else {
+            p_msg->disc_result.result.disc_res.p_raw_data = NULL;
+            bta_dm_search_cb.p_ble_rawdata = 0;
+        }
+
+        bta_sys_sendmsg(p_msg);
+
+        if (conn_id != BTA_GATT_INVALID_CONN_ID)
+        {
+            /* start a GATT channel close delay timer */
+            bta_sys_start_timer(bta_dm_search_cb.gatt_close_timer,
+                                BTA_DM_GATT_CLOSE_DELAY_TOUT,
+                                BTA_DM_DISC_CLOSE_TOUT_EVT, 0);
+            bdcpy(bta_dm_search_cb.pending_close_bda,
+                  bta_dm_search_cb.peer_bdaddr);
+        }
+#ifdef BLUETOOTH_RTK
+        else if(conn_id == BTA_GATT_INVALID_CONN_ID && status == (tBTA_GATT_STATUS) BTA_GATT_ERROR)
+            bta_dm_search_cb.conn_id = BTA_GATT_INVALID_CONN_ID;
+#endif
+        bta_dm_search_cb.gatt_disc_active = FALSE;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_close_gatt_conn
+**
+** Description      This function close the GATT connection after delay timeout.
+**
+** Parameters:
+**
+*******************************************************************************/
+void bta_dm_close_gatt_conn(tBTA_DM_MSG *p_data)
+{
+    UNUSED(p_data);
+
+    if (bta_dm_search_cb.conn_id != BTA_GATT_INVALID_CONN_ID)
+        BTA_GATTC_Close(bta_dm_search_cb.conn_id);
+
+    memset(bta_dm_search_cb.pending_close_bda, 0, BD_ADDR_LEN);
+    bta_dm_search_cb.conn_id = BTA_GATT_INVALID_CONN_ID;
+}
+/*******************************************************************************
+**
+** Function         btm_dm_start_gatt_discovery
+**
+** Description      This is GATT initiate the service search by open a GATT connection
+**                  first.
+**
+** Parameters:
+**
+*******************************************************************************/
+void btm_dm_start_gatt_discovery (BD_ADDR bd_addr)
+{
+    bta_dm_search_cb.gatt_disc_active = TRUE;
+
+    /* connection is already open */
+    if (bdcmp(bta_dm_search_cb.pending_close_bda, bd_addr) == 0 &&
+        bta_dm_search_cb.conn_id != BTA_GATT_INVALID_CONN_ID)
+    {
+        memset(bta_dm_search_cb.pending_close_bda, 0, BD_ADDR_LEN);
+        alarm_cancel(bta_dm_search_cb.gatt_close_timer);
+        btm_dm_start_disc_gatt_services(bta_dm_search_cb.conn_id);
+    }
+    else
+        BTA_GATTC_Open(bta_dm_search_cb.client_if, bd_addr, TRUE, BTA_GATT_TRANSPORT_LE);
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_cancel_gatt_discovery
+**
+** Description      This is GATT cancel the GATT service search.
+**
+** Parameters:
+**
+*******************************************************************************/
+static void bta_dm_cancel_gatt_discovery(BD_ADDR bd_addr)
+{
+    if (bta_dm_search_cb.conn_id == BTA_GATT_INVALID_CONN_ID)
+    {
+        BTA_GATTC_CancelOpen(bta_dm_search_cb.client_if, bd_addr, TRUE);
+    }
+
+    bta_dm_gatt_disc_complete(bta_dm_search_cb.conn_id, (tBTA_GATT_STATUS) BTA_GATT_ERROR);
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_proc_open_evt
+**
+** Description      process BTA_GATTC_OPEN_EVT in DM.
+**
+** Parameters:
+**
+*******************************************************************************/
+void bta_dm_proc_open_evt(tBTA_GATTC_OPEN *p_data)
+{
+    UINT8           *p1;
+    UINT8           *p2;
+
+    p1 = bta_dm_search_cb.peer_bdaddr;
+    p2 = p_data->remote_bda;
+
+    APPL_TRACE_DEBUG("DM Search state= %d search_cb.peer_dbaddr: [%08x%04x] connected_bda= [%08x%04x] ",
+                      bta_dm_search_cb.state,
+                      ((p1[0])<<24)+((p1[1])<<16)+((p1[2])<<8)+(p1[3]),
+                      ((p1[4])<<8)+ p1[5],
+                      ((p2[0])<<24)+((p2[1])<<16)+((p2[2])<<8)+(p2[3]),
+                      ((p2[4])<<8)+ p2[5]);
+
+    APPL_TRACE_DEBUG("BTA_GATTC_OPEN_EVT conn_id = %d client_if=%d status = %d" ,
+                      p_data->conn_id,
+                      p_data->client_if,
+                      p_data->status);
+
+    bta_dm_search_cb.conn_id = p_data->conn_id;
+
+    if (p_data->status == BTA_GATT_OK)
+    {
+        btm_dm_start_disc_gatt_services(p_data->conn_id);
+    }
+    else
+    {
+        bta_dm_gatt_disc_complete(BTA_GATT_INVALID_CONN_ID, p_data->status);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_gattc_callback
+**
+** Description      This is GATT client callback function used in DM.
+**
+** Parameters:
+**
+*******************************************************************************/
+static void bta_dm_gattc_callback(tBTA_GATTC_EVT event, tBTA_GATTC *p_data)
+{
+    APPL_TRACE_DEBUG("bta_dm_gattc_callback event = %d", event);
+
+    switch (event)
+    {
+        case BTA_GATTC_REG_EVT:
+            APPL_TRACE_DEBUG("BTA_GATTC_REG_EVT client_if = %d",  p_data->reg_oper.client_if);
+            if (p_data->reg_oper.status == BTA_GATT_OK)
+                bta_dm_search_cb.client_if = p_data->reg_oper.client_if;
+            else
+                bta_dm_search_cb.client_if = BTA_GATTS_INVALID_IF;
+            break;
+
+        case BTA_GATTC_OPEN_EVT:
+            bta_dm_proc_open_evt(&p_data->open);
+            break;
+
+        case BTA_GATTC_SEARCH_RES_EVT:
+            bta_dm_gatt_disc_result(p_data->srvc_res.service_uuid);
+            break;
+
+        case BTA_GATTC_SEARCH_CMPL_EVT:
+            if ( bta_dm_search_cb.state != BTA_DM_SEARCH_IDLE)
+                bta_dm_gatt_disc_complete(p_data->search_cmpl.conn_id, p_data->search_cmpl.status);
+            break;
+
+        case BTA_GATTC_CLOSE_EVT:
+            APPL_TRACE_DEBUG("BTA_GATTC_CLOSE_EVT reason = %d", p_data->close.reason);
+            /* in case of disconnect before search is completed */
+            if ( (bta_dm_search_cb.state != BTA_DM_SEARCH_IDLE) &&
+                 (bta_dm_search_cb.state != BTA_DM_SEARCH_ACTIVE) &&
+                 !memcmp(p_data->close.remote_bda, bta_dm_search_cb.peer_bdaddr, BD_ADDR_LEN))
+            {
+                bta_dm_gatt_disc_complete((UINT16)BTA_GATT_INVALID_CONN_ID,  (tBTA_GATT_STATUS) BTA_GATT_ERROR);
+            }
+            break;
+
+        default:
+            break;
+    }
+}
+
+#endif /* BTA_GATT_INCLUDED */
+
+#if BLE_VND_INCLUDED == TRUE
+/*******************************************************************************
+**
+** Function         bta_dm_ctrl_features_rd_cmpl_cback
+**
+** Description      callback to handle controller feature read complete
+**
+** Parameters:
+**
+*******************************************************************************/
+static void bta_dm_ctrl_features_rd_cmpl_cback(tBTM_STATUS result)
+{
+    APPL_TRACE_DEBUG("%s  status = %d ", __FUNCTION__, result);
+    if (result == BTM_SUCCESS)
+    {
+        if(bta_dm_cb.p_sec_cback)
+            bta_dm_cb.p_sec_cback(BTA_DM_LE_FEATURES_READ, NULL);
+    }
+    else
+    {
+        APPL_TRACE_ERROR("%s Ctrl BLE feature read failed: status :%d",__FUNCTION__, result);
+    }
+
+}
+#endif /* BLE_VND_INCLUDED */
+#ifdef BLUETOOTH_RTK
+/*******************************************************************************
+**
+** Function         bta_dm_set_eir_config
+**
+** Description
+**
+**
+*******************************************************************************/
+void bta_dm_set_eir_config (tBTA_DM_MSG *p_data)
+{
+    if (p_data->set_eir_cfg.p_eir_cfg)
+    {
+        /* User defined config */
+        p_bta_dm_eir_cfg = p_data->set_eir_cfg.p_eir_cfg;
+    }
+    else
+    {
+        /* Back to default config */
+        p_bta_dm_eir_cfg = (tBTA_DM_EIR_CONF*)&bta_dm_eir_cfg;
+    }
+
+    bta_dm_set_eir (NULL);
+}
+#endif
+#endif  /* BLE_INCLUDED */
diff --git a/rtkbt/code/bt/bta/dm/bta_dm_api.c b/rtkbt/code/bt/bta/dm/bta_dm_api.c
new file mode 100755
index 0000000..82dd8b2
--- /dev/null
+++ b/rtkbt/code/bt/bta/dm/bta_dm_api.c
@@ -0,0 +1,1941 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2003-2014 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the API implementation file for the BTA device manager.
+ *
+ ******************************************************************************/
+
+#include "bt_common.h"
+#include "bta_sys.h"
+#include "bta_api.h"
+#include "bta_dm_int.h"
+#include "bta_sys_int.h"
+#include "btm_api.h"
+#include "btm_int.h"
+#include <string.h>
+#include "utl.h"
+
+/*****************************************************************************
+**  Constants
+*****************************************************************************/
+
+static const tBTA_SYS_REG bta_dm_reg =
+{
+    bta_dm_sm_execute,
+    bta_dm_sm_disable
+};
+
+static const tBTA_SYS_REG bta_dm_search_reg =
+{
+    bta_dm_search_sm_execute,
+    bta_dm_search_sm_disable
+};
+
+/*******************************************************************************
+**
+** Function         BTA_EnableBluetooth
+**
+** Description      Enables bluetooth service.  This function must be
+**                  called before any other functions in the BTA API are called.
+**
+**
+** Returns          tBTA_STATUS
+**
+*******************************************************************************/
+tBTA_STATUS BTA_EnableBluetooth(tBTA_DM_SEC_CBACK *p_cback)
+{
+    /* Bluetooth disabling is in progress */
+    if (bta_dm_cb.disabling)
+        return BTA_FAILURE;
+
+    bta_dm_init_cb();
+
+    bta_sys_register(BTA_ID_DM, &bta_dm_reg );
+    bta_sys_register(BTA_ID_DM_SEARCH, &bta_dm_search_reg );
+
+    /* if UUID list is not provided as static data */
+    bta_sys_eir_register(bta_dm_eir_update_uuid);
+
+    tBTA_DM_API_ENABLE *p_msg =
+        (tBTA_DM_API_ENABLE *)osi_malloc(sizeof(tBTA_DM_API_ENABLE));
+    p_msg->hdr.event = BTA_DM_API_ENABLE_EVT;
+    p_msg->p_sec_cback = p_cback;
+
+    bta_sys_sendmsg(p_msg);
+
+    return BTA_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         BTA_DisableBluetooth
+**
+** Description      Disables bluetooth service.  This function is called when
+**                  the application no longer needs bluetooth service
+**
+** Returns          void
+**
+*******************************************************************************/
+tBTA_STATUS BTA_DisableBluetooth(void)
+{
+    BT_HDR *p_msg = (BT_HDR *)osi_malloc(sizeof(BT_HDR));
+
+    p_msg->event = BTA_DM_API_DISABLE_EVT;
+
+    bta_sys_sendmsg(p_msg);
+
+    return BTA_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         BTA_EnableTestMode
+**
+** Description      Enables bluetooth device under test mode
+**
+**
+** Returns          tBTA_STATUS
+**
+*******************************************************************************/
+tBTA_STATUS BTA_EnableTestMode(void)
+{
+    BT_HDR *p_msg = (BT_HDR *)osi_malloc(sizeof(BT_HDR));
+
+    APPL_TRACE_API("%s", __func__);
+
+    p_msg->event = BTA_DM_API_ENABLE_TEST_MODE_EVT;
+    bta_sys_sendmsg(p_msg);
+
+    return BTA_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         BTA_DisableTestMode
+**
+** Description      Disable bluetooth device under test mode
+**
+**
+** Returns          None
+**
+*******************************************************************************/
+void BTA_DisableTestMode(void)
+{
+    BT_HDR *p_msg = (BT_HDR *)osi_malloc(sizeof(BT_HDR));
+
+    APPL_TRACE_API("%s", __func__);
+
+    p_msg->event = BTA_DM_API_DISABLE_TEST_MODE_EVT;
+    bta_sys_sendmsg(p_msg);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_DmSetDeviceName
+**
+** Description      This function sets the Bluetooth name of local device
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_DmSetDeviceName(char *p_name)
+{
+    tBTA_DM_API_SET_NAME *p_msg =
+        (tBTA_DM_API_SET_NAME *)osi_malloc(sizeof(tBTA_DM_API_SET_NAME));
+
+    p_msg->hdr.event = BTA_DM_API_SET_NAME_EVT;
+    strlcpy((char*)p_msg->name, p_name, BD_NAME_LEN);
+
+    bta_sys_sendmsg(p_msg);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_DmSetVisibility
+**
+** Description      This function sets the Bluetooth connectable,
+**                  discoverable, pairable and conn paired only modes of local device
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_DmSetVisibility(tBTA_DM_DISC disc_mode, tBTA_DM_CONN conn_mode, UINT8 pairable_mode, UINT8 conn_filter )
+{
+    tBTA_DM_API_SET_VISIBILITY *p_msg =
+        (tBTA_DM_API_SET_VISIBILITY *)osi_malloc(sizeof(tBTA_DM_MSG));
+
+    p_msg->hdr.event = BTA_DM_API_SET_VISIBILITY_EVT;
+    p_msg->disc_mode = disc_mode;
+    p_msg->conn_mode = conn_mode;
+    p_msg->pair_mode = pairable_mode;
+    p_msg->conn_paired_only = conn_filter;
+
+    bta_sys_sendmsg(p_msg);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_DmSearch
+**
+** Description      This function searches for peer Bluetooth devices. It performs
+**                  an inquiry and gets the remote name for devices. Service
+**                  discovery is done if services is non zero
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_DmSearch(tBTA_DM_INQ *p_dm_inq, tBTA_SERVICE_MASK services, tBTA_DM_SEARCH_CBACK *p_cback)
+{
+    tBTA_DM_API_SEARCH *p_msg =
+        (tBTA_DM_API_SEARCH *)osi_calloc(sizeof(tBTA_DM_API_SEARCH));
+
+    p_msg->hdr.event = BTA_DM_API_SEARCH_EVT;
+    memcpy(&p_msg->inq_params, p_dm_inq, sizeof(tBTA_DM_INQ));
+    p_msg->services = services;
+    p_msg->p_cback = p_cback;
+    p_msg->rs_res  = BTA_DM_RS_NONE;
+
+    bta_sys_sendmsg(p_msg);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_DmSearchCancel
+**
+** Description      This function  cancels a search initiated by BTA_DmSearch
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_DmSearchCancel(void)
+{
+    BT_HDR *p_msg = (BT_HDR *)osi_malloc(sizeof(BT_HDR));
+
+    p_msg->event = BTA_DM_API_SEARCH_CANCEL_EVT;
+    bta_sys_sendmsg(p_msg);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_DmDiscover
+**
+** Description      This function does service discovery for services of a
+**                  peer device
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_DmDiscover(BD_ADDR bd_addr, tBTA_SERVICE_MASK services,
+                    tBTA_DM_SEARCH_CBACK *p_cback, BOOLEAN sdp_search)
+{
+    tBTA_DM_API_DISCOVER *p_msg =
+        (tBTA_DM_API_DISCOVER *)osi_calloc(sizeof(tBTA_DM_API_DISCOVER));
+
+    p_msg->hdr.event = BTA_DM_API_DISCOVER_EVT;
+    bdcpy(p_msg->bd_addr, bd_addr);
+    p_msg->services = services;
+    p_msg->p_cback = p_cback;
+    p_msg->sdp_search = sdp_search;
+
+    bta_sys_sendmsg(p_msg);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_DmDiscoverUUID
+**
+** Description      This function does service discovery for services of a
+**                  peer device
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_DmDiscoverUUID(BD_ADDR bd_addr, tSDP_UUID *uuid,
+                    tBTA_DM_SEARCH_CBACK *p_cback, BOOLEAN sdp_search)
+{
+    tBTA_DM_API_DISCOVER *p_msg =
+        (tBTA_DM_API_DISCOVER *)osi_malloc(sizeof(tBTA_DM_API_DISCOVER));
+
+    p_msg->hdr.event = BTA_DM_API_DISCOVER_EVT;
+    bdcpy(p_msg->bd_addr, bd_addr);
+    p_msg->services = BTA_USER_SERVICE_MASK; //Not exposed at API level
+    p_msg->p_cback = p_cback;
+    p_msg->sdp_search = sdp_search;
+
+#if BLE_INCLUDED == TRUE && BTA_GATT_INCLUDED == TRUE
+    p_msg->num_uuid = 0;
+    p_msg->p_uuid = NULL;
+#endif
+    memcpy(&p_msg->uuid, uuid, sizeof(tSDP_UUID) );
+
+    bta_sys_sendmsg(p_msg);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_DmBond
+**
+** Description      This function initiates a bonding procedure with a peer
+**                  device
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_DmBond(BD_ADDR bd_addr)
+{
+    tBTA_DM_API_BOND *p_msg =
+        (tBTA_DM_API_BOND *)osi_malloc(sizeof(tBTA_DM_API_BOND));
+
+    p_msg->hdr.event = BTA_DM_API_BOND_EVT;
+    bdcpy(p_msg->bd_addr, bd_addr);
+    p_msg->transport = BTA_TRANSPORT_UNKNOWN;
+
+    bta_sys_sendmsg(p_msg);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_DmBondByTransports
+**
+** Description      This function initiates a bonding procedure with a peer
+**                  device
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_DmBondByTransport(BD_ADDR bd_addr, tBTA_TRANSPORT transport)
+{
+    tBTA_DM_API_BOND *p_msg =
+        (tBTA_DM_API_BOND *)osi_malloc(sizeof(tBTA_DM_API_BOND));
+
+    p_msg->hdr.event = BTA_DM_API_BOND_EVT;
+    bdcpy(p_msg->bd_addr, bd_addr);
+    p_msg->transport = transport;
+
+    bta_sys_sendmsg(p_msg);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_DmBondCancel
+**
+** Description      This function cancels the bonding procedure with a peer
+**                  device
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_DmBondCancel(BD_ADDR bd_addr)
+{
+    tBTA_DM_API_BOND_CANCEL *p_msg =
+        (tBTA_DM_API_BOND_CANCEL *)osi_malloc(sizeof(tBTA_DM_API_BOND_CANCEL));
+
+    p_msg->hdr.event = BTA_DM_API_BOND_CANCEL_EVT;
+    bdcpy(p_msg->bd_addr, bd_addr);
+
+    bta_sys_sendmsg(p_msg);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_DmPinReply
+**
+** Description      This function provides a pincode for a remote device when
+**                  one is requested by DM through BTA_DM_PIN_REQ_EVT
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_DmPinReply(BD_ADDR bd_addr, BOOLEAN accept, UINT8 pin_len, UINT8 *p_pin)
+
+{
+    tBTA_DM_API_PIN_REPLY *p_msg =
+        (tBTA_DM_API_PIN_REPLY *)osi_malloc(sizeof(tBTA_DM_API_PIN_REPLY));
+
+    p_msg->hdr.event = BTA_DM_API_PIN_REPLY_EVT;
+    bdcpy(p_msg->bd_addr, bd_addr);
+    p_msg->accept = accept;
+    if (accept) {
+        p_msg->pin_len = pin_len;
+        memcpy(p_msg->p_pin, p_pin, pin_len);
+    }
+
+    bta_sys_sendmsg(p_msg);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_DmLocalOob
+**
+** Description      This function retrieves the OOB data from local controller.
+**                  The result is reported by:
+**                  - bta_dm_co_loc_oob_ext() if device supports secure
+**                    connections (SC)
+**                  - bta_dm_co_loc_oob() if device doesn't support SC
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_DmLocalOob(void)
+{
+    tBTA_DM_API_LOC_OOB *p_msg =
+        (tBTA_DM_API_LOC_OOB *)osi_malloc(sizeof(tBTA_DM_API_LOC_OOB));
+
+    p_msg->hdr.event = BTA_DM_API_LOC_OOB_EVT;
+    bta_sys_sendmsg(p_msg);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_DmConfirm
+**
+** Description      This function accepts or rejects the numerical value of the
+**                  Simple Pairing process on BTA_DM_SP_CFM_REQ_EVT
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_DmConfirm(BD_ADDR bd_addr, BOOLEAN accept)
+{
+    tBTA_DM_API_CONFIRM *p_msg =
+        (tBTA_DM_API_CONFIRM *)osi_malloc(sizeof(tBTA_DM_API_CONFIRM));
+
+    p_msg->hdr.event = BTA_DM_API_CONFIRM_EVT;
+    bdcpy(p_msg->bd_addr, bd_addr);
+    p_msg->accept = accept;
+
+    bta_sys_sendmsg(p_msg);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_DmAddDevice
+**
+** Description      This function adds a device to the security database list of
+**                  peer device
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_DmAddDevice(BD_ADDR bd_addr, DEV_CLASS dev_class, LINK_KEY link_key,
+                     tBTA_SERVICE_MASK trusted_mask, BOOLEAN is_trusted,
+                     UINT8 key_type, tBTA_IO_CAP io_cap, UINT8 pin_length)
+{
+    tBTA_DM_API_ADD_DEVICE *p_msg =
+        (tBTA_DM_API_ADD_DEVICE *)osi_calloc(sizeof(tBTA_DM_API_ADD_DEVICE));
+
+    p_msg->hdr.event = BTA_DM_API_ADD_DEVICE_EVT;
+    bdcpy(p_msg->bd_addr, bd_addr);
+    p_msg->tm = trusted_mask;
+    p_msg->is_trusted = is_trusted;
+    p_msg->io_cap = io_cap;
+
+    if (link_key) {
+        p_msg->link_key_known = TRUE;
+        p_msg->key_type = key_type;
+        memcpy(p_msg->link_key, link_key, LINK_KEY_LEN);
+    }
+
+    /* Load device class if specified */
+    if (dev_class) {
+        p_msg->dc_known = TRUE;
+        memcpy(p_msg->dc, dev_class, DEV_CLASS_LEN);
+    }
+
+    memset(p_msg->bd_name, 0, BD_NAME_LEN + 1);
+    memset(p_msg->features, 0, sizeof (p_msg->features));
+    p_msg->pin_length = pin_length;
+
+    bta_sys_sendmsg(p_msg);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_DmRemoveDevice
+**
+** Description      This function removes a device fromthe security database list of
+**                  peer device. It manages unpairing even while connected.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+tBTA_STATUS BTA_DmRemoveDevice(BD_ADDR bd_addr)
+{
+    tBTA_DM_API_REMOVE_DEVICE *p_msg =
+        (tBTA_DM_API_REMOVE_DEVICE *)osi_calloc(sizeof(tBTA_DM_API_REMOVE_DEVICE));
+
+    p_msg->hdr.event = BTA_DM_API_REMOVE_DEVICE_EVT;
+    bdcpy(p_msg->bd_addr, bd_addr);
+
+    bta_sys_sendmsg(p_msg);
+
+    return BTA_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         BTA_GetEirService
+**
+** Description      This function is called to get BTA service mask from EIR.
+**
+** Parameters       p_eir - pointer of EIR significant part
+**                  p_services - return the BTA service mask
+**
+** Returns          None
+**
+*******************************************************************************/
+extern const UINT16 bta_service_id_to_uuid_lkup_tbl [];
+void BTA_GetEirService( UINT8 *p_eir, tBTA_SERVICE_MASK *p_services )
+{
+    UINT8 xx, yy;
+    UINT8 num_uuid, max_num_uuid = 32;
+    UINT8 uuid_list[32*LEN_UUID_16];
+    UINT16 *p_uuid16 = (UINT16 *)uuid_list;
+    tBTA_SERVICE_MASK mask;
+
+    BTM_GetEirUuidList( p_eir, LEN_UUID_16, &num_uuid, uuid_list, max_num_uuid);
+    for( xx = 0; xx < num_uuid; xx++ )
+    {
+        mask = 1;
+        for( yy = 0; yy < BTA_MAX_SERVICE_ID; yy++ )
+        {
+            if( *(p_uuid16 + xx) == bta_service_id_to_uuid_lkup_tbl[yy] )
+            {
+                *p_services |= mask;
+                break;
+            }
+            mask <<= 1;
+        }
+
+        /* for HSP v1.2 only device */
+        if (*(p_uuid16 + xx) == UUID_SERVCLASS_HEADSET_HS)
+            *p_services |= BTA_HSP_SERVICE_MASK;
+
+       if (*(p_uuid16 + xx) == UUID_SERVCLASS_HDP_SOURCE)
+            *p_services |= BTA_HL_SERVICE_MASK;
+
+        if (*(p_uuid16 + xx) == UUID_SERVCLASS_HDP_SINK)
+            *p_services |= BTA_HL_SERVICE_MASK;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         BTA_DmGetConnectionState
+**
+** Description      Returns whether the remote device is currently connected.
+**
+** Returns          0 if the device is NOT connected.
+**
+*******************************************************************************/
+UINT16 BTA_DmGetConnectionState( BD_ADDR bd_addr )
+{
+    tBTA_DM_PEER_DEVICE * p_dev = bta_dm_find_peer_device(bd_addr);
+    return (p_dev && p_dev->conn_state == BTA_DM_CONNECTED);
+}
+
+
+/*******************************************************************************
+**                   Device Identification (DI) Server Functions
+*******************************************************************************/
+/*******************************************************************************
+**
+** Function         BTA_DmSetLocalDiRecord
+**
+** Description      This function adds a DI record to the local SDP database.
+**
+** Returns          BTA_SUCCESS if record set sucessfully, otherwise error code.
+**
+*******************************************************************************/
+tBTA_STATUS BTA_DmSetLocalDiRecord( tBTA_DI_RECORD *p_device_info,
+                              UINT32 *p_handle )
+{
+    tBTA_STATUS  status = BTA_FAILURE;
+
+    if(bta_dm_di_cb.di_num < BTA_DI_NUM_MAX)
+    {
+        if(SDP_SetLocalDiRecord((tSDP_DI_RECORD *)p_device_info, p_handle) == SDP_SUCCESS)
+        {
+            if(!p_device_info->primary_record)
+            {
+                bta_dm_di_cb.di_handle[bta_dm_di_cb.di_num] = *p_handle;
+                bta_dm_di_cb.di_num ++;
+            }
+
+            bta_sys_add_uuid(UUID_SERVCLASS_PNP_INFORMATION);
+            status =  BTA_SUCCESS;
+        }
+    }
+
+    return status;
+}
+
+/*******************************************************************************
+**
+** Function         bta_dmexecutecallback
+**
+** Description      This function will request BTA to execute a call back in the context of BTU task
+**                  This API was named in lower case because it is only intended
+**                  for the internal customers(like BTIF).
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_dmexecutecallback (tBTA_DM_EXEC_CBACK* p_callback, void * p_param)
+{
+    tBTA_DM_API_EXECUTE_CBACK *p_msg =
+        (tBTA_DM_API_EXECUTE_CBACK *)osi_malloc(sizeof(tBTA_DM_MSG));
+
+    p_msg->hdr.event = BTA_DM_API_EXECUTE_CBACK_EVT;
+    p_msg->p_param= p_param;
+    p_msg->p_exec_cback= p_callback;
+
+    bta_sys_sendmsg(p_msg);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_DmAddBleKey
+**
+** Description      Add/modify LE device information.  This function will be
+**                  normally called during host startup to restore all required
+**                  information stored in the NVRAM.
+**
+** Parameters:      bd_addr          - BD address of the peer
+**                  p_le_key         - LE key values.
+**                  key_type         - LE SMP key type.
+**
+** Returns          BTA_SUCCESS if successful
+**                  BTA_FAIL if operation failed.
+**
+*******************************************************************************/
+void BTA_DmAddBleKey (BD_ADDR bd_addr, tBTA_LE_KEY_VALUE *p_le_key, tBTA_LE_KEY_TYPE key_type)
+{
+#if BLE_INCLUDED == TRUE
+
+    tBTA_DM_API_ADD_BLEKEY *p_msg =
+        (tBTA_DM_API_ADD_BLEKEY *)osi_calloc(sizeof(tBTA_DM_API_ADD_BLEKEY));
+
+    p_msg->hdr.event = BTA_DM_API_ADD_BLEKEY_EVT;
+    p_msg->key_type = key_type;
+    bdcpy(p_msg->bd_addr, bd_addr);
+    memcpy(&p_msg->blekey, p_le_key, sizeof(tBTA_LE_KEY_VALUE));
+
+    bta_sys_sendmsg(p_msg);
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         BTA_DmAddBleDevice
+**
+** Description      Add a BLE device.  This function will be normally called
+**                  during host startup to restore all required information
+**                  for a LE device stored in the NVRAM.
+**
+** Parameters:      bd_addr          - BD address of the peer
+**                  dev_type         - Remote device's device type.
+**                  addr_type        - LE device address type.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_DmAddBleDevice(BD_ADDR bd_addr, tBLE_ADDR_TYPE addr_type, tBT_DEVICE_TYPE dev_type)
+{
+#if BLE_INCLUDED == TRUE
+    tBTA_DM_API_ADD_BLE_DEVICE *p_msg =
+        (tBTA_DM_API_ADD_BLE_DEVICE *)osi_calloc(sizeof(tBTA_DM_API_ADD_BLE_DEVICE));
+
+    p_msg->hdr.event = BTA_DM_API_ADD_BLEDEVICE_EVT;
+    bdcpy(p_msg->bd_addr, bd_addr);
+    p_msg->addr_type = addr_type;
+    p_msg->dev_type = dev_type;
+
+    bta_sys_sendmsg(p_msg);
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         BTA_DmBlePasskeyReply
+**
+** Description      Send BLE SMP passkey reply.
+**
+** Parameters:      bd_addr          - BD address of the peer
+**                  accept           - passkey entry sucessful or declined.
+**                  passkey          - passkey value, must be a 6 digit number,
+**                                     can be lead by 0.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_DmBlePasskeyReply(BD_ADDR bd_addr, BOOLEAN accept, UINT32 passkey)
+{
+#if BLE_INCLUDED == TRUE
+    tBTA_DM_API_PASSKEY_REPLY *p_msg =
+        (tBTA_DM_API_PASSKEY_REPLY *)osi_calloc(sizeof(tBTA_DM_API_PASSKEY_REPLY));
+
+    p_msg->hdr.event = BTA_DM_API_BLE_PASSKEY_REPLY_EVT;
+    bdcpy(p_msg->bd_addr, bd_addr);
+    p_msg->accept = accept;
+
+    if (accept)
+        p_msg->passkey = passkey;
+
+    bta_sys_sendmsg(p_msg);
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         BTA_DmBleConfirmReply
+**
+** Description      Send BLE SMP SC user confirmation reply.
+**
+** Parameters:      bd_addr          - BD address of the peer
+**                  accept           - numbers to compare are the same or different.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_DmBleConfirmReply(BD_ADDR bd_addr, BOOLEAN accept)
+{
+#if BLE_INCLUDED == TRUE
+    tBTA_DM_API_CONFIRM *p_msg =
+        (tBTA_DM_API_CONFIRM *)osi_calloc(sizeof(tBTA_DM_API_CONFIRM));
+
+    p_msg->hdr.event = BTA_DM_API_BLE_CONFIRM_REPLY_EVT;
+    bdcpy(p_msg->bd_addr, bd_addr);
+    p_msg->accept = accept;
+
+    bta_sys_sendmsg(p_msg);
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         BTA_DmBleSecurityGrant
+**
+** Description      Grant security request access.
+**
+** Parameters:      bd_addr          - BD address of the peer
+**                  res              - security grant status.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_DmBleSecurityGrant(BD_ADDR bd_addr, tBTA_DM_BLE_SEC_GRANT res)
+{
+#if BLE_INCLUDED == TRUE
+    tBTA_DM_API_BLE_SEC_GRANT *p_msg =
+        (tBTA_DM_API_BLE_SEC_GRANT *)osi_calloc(sizeof(tBTA_DM_API_BLE_SEC_GRANT));
+
+    p_msg->hdr.event = BTA_DM_API_BLE_SEC_GRANT_EVT;
+    bdcpy(p_msg->bd_addr, bd_addr);
+    p_msg->res = res;
+
+    bta_sys_sendmsg(p_msg);
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         BTA_DmSetBlePrefConnParams
+**
+** Description      This function is called to set the preferred connection
+**                  parameters when default connection parameter is not desired.
+**
+** Parameters:      bd_addr          - BD address of the peripheral
+**                  scan_interval    - scan interval
+**                  scan_window      - scan window
+**                  min_conn_int     - minimum preferred connection interval
+**                  max_conn_int     - maximum preferred connection interval
+**                  slave_latency    - preferred slave latency
+**                  supervision_tout - preferred supervision timeout
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_DmSetBlePrefConnParams(BD_ADDR bd_addr,
+                               UINT16 min_conn_int, UINT16 max_conn_int,
+                               UINT16 slave_latency, UINT16 supervision_tout )
+{
+#if BLE_INCLUDED == TRUE
+    tBTA_DM_API_BLE_CONN_PARAMS *p_msg =
+        (tBTA_DM_API_BLE_CONN_PARAMS *)osi_calloc(sizeof(tBTA_DM_API_BLE_CONN_PARAMS));
+
+    p_msg->hdr.event = BTA_DM_API_BLE_CONN_PARAM_EVT;
+    memcpy(p_msg->peer_bda, bd_addr, BD_ADDR_LEN);
+    p_msg->conn_int_max = max_conn_int;
+    p_msg->conn_int_min = min_conn_int;
+    p_msg->slave_latency = slave_latency;
+    p_msg->supervision_tout = supervision_tout;
+
+    bta_sys_sendmsg(p_msg);
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         BTA_DmSetBleConnScanParams
+**
+** Description      This function is called to set scan parameters used in
+**                  BLE connection request
+**
+** Parameters:      scan_interval    - scan interval
+**                  scan_window      - scan window
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_DmSetBleConnScanParams(UINT32 scan_interval, UINT32 scan_window)
+{
+#if BLE_INCLUDED == TRUE
+    tBTA_DM_API_BLE_SCAN_PARAMS *p_msg =
+        (tBTA_DM_API_BLE_SCAN_PARAMS *)osi_calloc(sizeof(tBTA_DM_API_BLE_SCAN_PARAMS));
+
+    p_msg->hdr.event = BTA_DM_API_BLE_CONN_SCAN_PARAM_EVT;
+    p_msg->scan_int = scan_interval;
+    p_msg->scan_window = scan_window;
+
+    bta_sys_sendmsg(p_msg);
+#endif  // BLE_INCLUDED == TRUE
+}
+
+/*******************************************************************************
+**
+** Function         BTA_DmSetBleScanParams
+**
+** Description      This function is called to set scan parameters
+**
+** Parameters:      client_if - Client IF
+**                  scan_interval - scan interval
+**                  scan_window - scan window
+**                  scan_mode - scan mode
+**                  scan_param_setup_status_cback - Set scan param status callback
+**
+** Returns          void
+**
+*******************************************************************************/
+
+#if BLE_INCLUDED == TRUE
+void BTA_DmSetBleScanParams(tGATT_IF client_if, UINT32 scan_interval,
+                            UINT32 scan_window, tBLE_SCAN_MODE scan_mode,
+                            tBLE_SCAN_PARAM_SETUP_CBACK scan_param_setup_cback)
+{
+    tBTA_DM_API_BLE_SCAN_PARAMS *p_msg =
+        (tBTA_DM_API_BLE_SCAN_PARAMS *)osi_calloc(sizeof(tBTA_DM_API_BLE_SCAN_PARAMS));
+
+    p_msg->hdr.event = BTA_DM_API_BLE_SCAN_PARAM_EVT;
+    p_msg->client_if = client_if;
+    p_msg->scan_int = scan_interval;
+    p_msg->scan_window = scan_window;
+    p_msg->scan_mode = scan_mode;
+    p_msg->scan_param_setup_cback = scan_param_setup_cback;
+
+    bta_sys_sendmsg(p_msg);
+}
+#endif  // BLE_INCLUDED == TRUE
+
+/*******************************************************************************
+**
+** Function         BTA_DmSetBleAdvParams
+**
+** Description      This function sets the advertising parameters BLE functionality.
+**                  It is to be called when device act in peripheral or broadcaster
+**                  role.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_DmSetBleAdvParams (UINT16 adv_int_min, UINT16 adv_int_max,
+                           tBLE_BD_ADDR *p_dir_bda)
+{
+#if BLE_INCLUDED == TRUE
+    tBTA_DM_API_BLE_ADV_PARAMS *p_msg =
+        (tBTA_DM_API_BLE_ADV_PARAMS *)osi_calloc(sizeof(tBTA_DM_API_BLE_ADV_PARAMS));
+
+    APPL_TRACE_API("BTA_DmSetBleAdvParam: %d, %d", adv_int_min, adv_int_max);
+
+    p_msg->hdr.event = BTA_DM_API_BLE_ADV_PARAM_EVT;
+    p_msg->adv_int_min = adv_int_min;
+    p_msg->adv_int_max = adv_int_max;
+
+    if (p_dir_bda != NULL) {
+        p_msg->p_dir_bda = (tBLE_BD_ADDR *)(p_msg + 1);
+        memcpy(p_msg->p_dir_bda, p_dir_bda, sizeof(tBLE_BD_ADDR));
+    }
+
+    bta_sys_sendmsg(p_msg);
+#endif
+}
+
+/*******************************************************************************
+**                      BLE ADV data management API
+********************************************************************************/
+
+#if BLE_INCLUDED == TRUE
+/*******************************************************************************
+**
+** Function         BTA_DmBleSetAdvConfig
+**
+** Description      This function is called to override the BTA default ADV parameters.
+**
+** Parameters       data_mask: adv data mask.
+**                  p_adv_cfg: Pointer to User defined ADV data structure. This
+**                             memory space can not be freed until p_adv_data_cback
+**                             is received.
+**                  p_adv_data_cback: set adv data complete callback.
+**
+** Returns          None
+**
+*******************************************************************************/
+void BTA_DmBleSetAdvConfig (tBTA_BLE_AD_MASK data_mask, tBTA_BLE_ADV_DATA *p_adv_cfg,
+                            tBTA_SET_ADV_DATA_CMPL_CBACK *p_adv_data_cback)
+{
+  tBTA_DM_API_SET_ADV_CONFIG *p_msg = osi_calloc(sizeof(*p_msg));
+
+  p_msg->hdr.event = BTA_DM_API_BLE_SET_ADV_CONFIG_EVT;
+  p_msg->data_mask = data_mask;
+  p_msg->p_adv_data_cback = p_adv_data_cback;
+  memcpy(&p_msg->adv_cfg, p_adv_cfg, sizeof(p_msg->adv_cfg));
+
+  bta_sys_sendmsg(p_msg);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_DmBleSetScanRsp
+**
+** Description      This function is called to override the BTA scan response.
+**
+** Parameters       Pointer to User defined ADV data structure
+**
+** Returns          None
+**
+*******************************************************************************/
+extern void BTA_DmBleSetScanRsp (tBTA_BLE_AD_MASK data_mask, tBTA_BLE_ADV_DATA *p_adv_cfg,
+                                 tBTA_SET_ADV_DATA_CMPL_CBACK *p_adv_data_cback)
+{
+  tBTA_DM_API_SET_ADV_CONFIG *p_msg = osi_calloc(sizeof(*p_msg));
+
+  p_msg->hdr.event = BTA_DM_API_BLE_SET_SCAN_RSP_EVT;
+  p_msg->data_mask = data_mask;
+  p_msg->p_adv_data_cback = p_adv_data_cback;
+  memcpy(&p_msg->adv_cfg, p_adv_cfg, sizeof(p_msg->adv_cfg));
+
+  bta_sys_sendmsg(p_msg);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_DmBleSetStorageParams
+**
+** Description      This function is called to override the BTA scan response.
+**
+** Parameters       batch_scan_full_max -Max storage space (in %) allocated to full scanning
+**                  batch_scan_trunc_max -Max storage space (in %) allocated to truncated scanning
+**                  batch_scan_notify_threshold -Setup notification level based on total space
+**                  p_setup_cback - Setup callback pointer
+**                  p_thres_cback - Threshold callback pointer
+**                  p_rep_cback - Reports callback pointer
+**                  ref_value - Ref value
+**
+** Returns          None
+**
+*******************************************************************************/
+extern void BTA_DmBleSetStorageParams(UINT8 batch_scan_full_max,
+                                         UINT8 batch_scan_trunc_max,
+                                         UINT8 batch_scan_notify_threshold,
+                                         tBTA_BLE_SCAN_SETUP_CBACK *p_setup_cback,
+                                         tBTA_BLE_SCAN_THRESHOLD_CBACK *p_thres_cback,
+                                         tBTA_BLE_SCAN_REP_CBACK* p_rep_cback,
+                                         tBTA_DM_BLE_REF_VALUE ref_value)
+{
+    tBTA_DM_API_SET_STORAGE_CONFIG *p_msg =
+        (tBTA_DM_API_SET_STORAGE_CONFIG *)osi_malloc(sizeof(tBTA_DM_API_SET_STORAGE_CONFIG));
+
+    bta_dm_cb.p_setup_cback = p_setup_cback;
+
+    p_msg->hdr.event = BTA_DM_API_BLE_SETUP_STORAGE_EVT;
+    p_msg->p_setup_cback=bta_ble_scan_setup_cb;
+    p_msg->p_thres_cback=p_thres_cback;
+    p_msg->p_read_rep_cback=p_rep_cback;
+    p_msg->ref_value = ref_value;
+    p_msg->batch_scan_full_max = batch_scan_full_max;
+    p_msg->batch_scan_trunc_max = batch_scan_trunc_max;
+    p_msg->batch_scan_notify_threshold = batch_scan_notify_threshold;
+
+    bta_sys_sendmsg(p_msg);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_DmBleEnableBatchScan
+**
+** Description      This function is called to enable the batch scan
+**
+** Parameters       scan_mode -Batch scan mode
+**                  scan_interval - Scan interval
+**                  scan_window - Scan window
+**                  discard_rule -Discard rules
+**                  addr_type - Address type
+**                  ref_value - Reference value
+**
+** Returns          None
+**
+*******************************************************************************/
+extern void BTA_DmBleEnableBatchScan(tBTA_BLE_BATCH_SCAN_MODE scan_mode,
+                                         UINT32 scan_interval, UINT32 scan_window,
+                                         tBTA_BLE_DISCARD_RULE discard_rule,
+                                         tBLE_ADDR_TYPE        addr_type,
+                                         tBTA_DM_BLE_REF_VALUE ref_value)
+{
+    tBTA_DM_API_ENABLE_SCAN *p_msg =
+        (tBTA_DM_API_ENABLE_SCAN *)osi_malloc(sizeof(tBTA_DM_API_ENABLE_SCAN));
+
+    p_msg->hdr.event = BTA_DM_API_BLE_ENABLE_BATCH_SCAN_EVT;
+    p_msg->scan_mode = scan_mode;
+    p_msg->scan_int = scan_interval;
+    p_msg->scan_window = scan_window;
+    p_msg->discard_rule = discard_rule;
+    p_msg->addr_type = addr_type;
+    p_msg->ref_value = ref_value;
+
+    bta_sys_sendmsg(p_msg);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_DmBleDisableBatchScan
+**
+** Description      This function is called to disable the batch scan
+**
+** Parameters       ref_value - Reference value
+**
+** Returns          None
+**
+*******************************************************************************/
+extern void BTA_DmBleDisableBatchScan(tBTA_DM_BLE_REF_VALUE ref_value)
+{
+    tBTA_DM_API_DISABLE_SCAN *p_msg =
+        (tBTA_DM_API_DISABLE_SCAN *)osi_malloc(sizeof(tBTA_DM_API_DISABLE_SCAN));
+
+    p_msg->hdr.event = BTA_DM_API_BLE_DISABLE_BATCH_SCAN_EVT;
+    p_msg->ref_value = ref_value;
+
+    bta_sys_sendmsg(p_msg);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_DmBleReadScanReports
+**
+** Description      This function is called to read scan reports
+**
+** Parameters       scan_type -Batch scan mode
+**                  ref_value - Reference value
+**
+** Returns          None
+**
+*******************************************************************************/
+extern void BTA_DmBleReadScanReports(tBTA_BLE_BATCH_SCAN_MODE scan_type,
+                                             tBTA_DM_BLE_REF_VALUE ref_value)
+{
+    tBTA_DM_API_READ_SCAN_REPORTS *p_msg =
+        (tBTA_DM_API_READ_SCAN_REPORTS *)osi_malloc(sizeof(tBTA_DM_API_READ_SCAN_REPORTS));
+
+    p_msg->hdr.event = BTA_DM_API_BLE_READ_SCAN_REPORTS_EVT;
+    p_msg->scan_type = scan_type;
+    p_msg->ref_value = ref_value;
+
+    bta_sys_sendmsg(p_msg);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_DmBleTrackAdvertiser
+**
+** Description      This function is called to track advertiser
+**
+** Parameters       ref_value - Reference value
+**                  p_track_adv_cback - Track ADV callback
+**
+** Returns          None
+**
+*******************************************************************************/
+extern void BTA_DmBleTrackAdvertiser(tBTA_DM_BLE_REF_VALUE ref_value,
+                            tBTA_BLE_TRACK_ADV_CBACK *p_track_adv_cback)
+{
+    tBTA_DM_API_TRACK_ADVERTISER *p_msg =
+        (tBTA_DM_API_TRACK_ADVERTISER *)osi_malloc(sizeof(tBTA_DM_API_TRACK_ADVERTISER));
+
+    p_msg->hdr.event = BTA_DM_API_BLE_TRACK_ADVERTISER_EVT;
+    p_msg->p_track_adv_cback = p_track_adv_cback;
+    p_msg->ref_value = ref_value;
+
+    bta_sys_sendmsg(p_msg);
+}
+
+#endif
+
+/*******************************************************************************
+**                      BLE ADV data management API
+********************************************************************************/
+#if BLE_INCLUDED == TRUE
+
+/*******************************************************************************
+**
+** Function         BTA_DmBleBroadcast
+**
+** Description      This function starts or stops LE broadcasting.
+**
+** Parameters       start: start or stop broadcast.
+**
+** Returns          None
+**
+*******************************************************************************/
+extern void BTA_DmBleBroadcast (BOOLEAN start)
+{
+    tBTA_DM_API_BLE_OBSERVE *p_msg =
+        (tBTA_DM_API_BLE_OBSERVE *)osi_calloc(sizeof(tBTA_DM_API_BLE_OBSERVE));
+
+    APPL_TRACE_API("BTA_DmBleBroadcast: start = %d ", start);
+
+    p_msg->hdr.event = BTA_DM_API_BLE_BROADCAST_EVT;
+    p_msg->start = start;
+
+    bta_sys_sendmsg(p_msg);
+}
+
+#endif
+/*******************************************************************************
+**
+** Function         BTA_DmBleSetBgConnType
+**
+** Description      This function is called to set BLE connectable mode for a
+**                  peripheral device.
+**
+** Parameters       bg_conn_type: it can be auto connection, or selective connection.
+**                  p_select_cback: callback function when selective connection procedure
+**                              is being used.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_DmBleSetBgConnType(tBTA_DM_BLE_CONN_TYPE bg_conn_type, tBTA_DM_BLE_SEL_CBACK *p_select_cback)
+{
+#if BLE_INCLUDED == TRUE
+    tBTA_DM_API_BLE_SET_BG_CONN_TYPE *p_msg =
+        (tBTA_DM_API_BLE_SET_BG_CONN_TYPE *)osi_calloc(sizeof(tBTA_DM_API_BLE_SET_BG_CONN_TYPE));
+
+    p_msg->hdr.event = BTA_DM_API_BLE_SET_BG_CONN_TYPE;
+    p_msg->bg_conn_type = bg_conn_type;
+    p_msg->p_select_cback = p_select_cback;
+
+    bta_sys_sendmsg(p_msg);
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_discover_send_msg
+**
+** Description      This function send discover message to BTA task.
+**
+** Returns          void
+**
+*******************************************************************************/
+#if BLE_INCLUDED == TRUE && BTA_GATT_INCLUDED == TRUE
+static void bta_dm_discover_send_msg(BD_ADDR bd_addr, tBTA_SERVICE_MASK_EXT *p_services,
+                    tBTA_DM_SEARCH_CBACK *p_cback, BOOLEAN sdp_search,
+                    tBTA_TRANSPORT transport)
+{
+    const size_t len = p_services ?
+        (sizeof(tBTA_DM_API_DISCOVER) + sizeof(tBT_UUID) * p_services->num_uuid)
+        : sizeof(tBTA_DM_API_DISCOVER);
+    tBTA_DM_API_DISCOVER *p_msg = (tBTA_DM_API_DISCOVER *)osi_calloc(len);
+
+    p_msg->hdr.event = BTA_DM_API_DISCOVER_EVT;
+    bdcpy(p_msg->bd_addr, bd_addr);
+    p_msg->p_cback = p_cback;
+    p_msg->sdp_search = sdp_search;
+    p_msg->transport    = transport;
+
+    if (p_services != NULL) {
+#if BLE_INCLUDED == TRUE && BTA_GATT_INCLUDED == TRUE
+        p_msg->services = p_services->srvc_mask;
+        p_msg->num_uuid = p_services->num_uuid;
+        if (p_services->num_uuid != 0) {
+            p_msg->p_uuid = (tBT_UUID *)(p_msg + 1);
+            memcpy(p_msg->p_uuid, p_services->p_uuid,
+                   sizeof(tBT_UUID) * p_services->num_uuid);
+        }
+#endif
+    }
+
+    bta_sys_sendmsg(p_msg);
+}
+#endif
+
+/*******************************************************************************
+**
+** Function         BTA_DmDiscoverByTransport
+**
+** Description      This function does service discovery on particular transport
+**                  for services of a
+**                  peer device. When services.num_uuid is 0, it indicates all
+**                  GATT based services are to be searched; otherwise a list of
+**                  UUID of interested services should be provided through
+**                  p_services->p_uuid.
+**
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_DmDiscoverByTransport(BD_ADDR bd_addr, tBTA_SERVICE_MASK_EXT *p_services,
+                    tBTA_DM_SEARCH_CBACK *p_cback, BOOLEAN sdp_search,
+                    tBTA_TRANSPORT transport)
+{
+#if BLE_INCLUDED == TRUE && BTA_GATT_INCLUDED == TRUE
+    bta_dm_discover_send_msg(bd_addr, p_services, p_cback, sdp_search, transport);
+#endif
+}
+
+
+/*******************************************************************************
+**
+** Function         BTA_DmDiscoverExt
+**
+** Description      This function does service discovery for services of a
+**                  peer device. When services.num_uuid is 0, it indicates all
+**                  GATT based services are to be searched; other wise a list of
+**                  UUID of interested services should be provided through
+**                  p_services->p_uuid.
+**
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_DmDiscoverExt(BD_ADDR bd_addr, tBTA_SERVICE_MASK_EXT *p_services,
+                    tBTA_DM_SEARCH_CBACK *p_cback, BOOLEAN sdp_search)
+{
+#if BLE_INCLUDED == TRUE && BTA_GATT_INCLUDED == TRUE
+    bta_dm_discover_send_msg(bd_addr, p_services, p_cback, sdp_search, BTA_TRANSPORT_UNKNOWN);
+#endif
+
+}
+
+/*******************************************************************************
+**
+** Function         BTA_DmSearchExt
+**
+** Description      This function searches for peer Bluetooth devices. It performs
+**                  an inquiry and gets the remote name for devices. Service
+**                  discovery is done if services is non zero
+**
+** Parameters       p_dm_inq: inquiry conditions
+**                  p_services: if service is not empty, service discovery will be done.
+**                            for all GATT based service condition, put num_uuid, and
+**                            p_uuid is the pointer to the list of UUID values.
+**                  p_cback: callback functino when search is completed.
+**
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_DmSearchExt(tBTA_DM_INQ *p_dm_inq, tBTA_SERVICE_MASK_EXT *p_services, tBTA_DM_SEARCH_CBACK *p_cback)
+{
+#if BLE_INCLUDED == TRUE && BTA_GATT_INCLUDED == TRUE
+    const size_t len = p_services ?
+        (sizeof(tBTA_DM_API_SEARCH) + sizeof(tBT_UUID) * p_services->num_uuid)
+        : sizeof(tBTA_DM_API_SEARCH);
+    tBTA_DM_API_SEARCH *p_msg = (tBTA_DM_API_SEARCH *)osi_calloc(len);
+
+    p_msg->hdr.event = BTA_DM_API_SEARCH_EVT;
+    memcpy(&p_msg->inq_params, p_dm_inq, sizeof(tBTA_DM_INQ));
+    p_msg->p_cback = p_cback;
+    p_msg->rs_res  = BTA_DM_RS_NONE;
+
+    if (p_services != NULL) {
+        p_msg->services = p_services->srvc_mask;
+        p_msg->num_uuid = p_services->num_uuid;
+
+        if (p_services->num_uuid != 0) {
+            p_msg->p_uuid = (tBT_UUID *)(p_msg + 1);
+            memcpy(p_msg->p_uuid, p_services->p_uuid,
+                   sizeof(tBT_UUID) * p_services->num_uuid);
+        } else {
+            p_msg->p_uuid = NULL;
+        }
+    }
+
+    bta_sys_sendmsg(p_msg);
+#else
+    UNUSED(p_dm_inq);
+    UNUSED(p_services);
+    UNUSED(p_cback);
+#endif
+}
+/*******************************************************************************
+**
+** Function         BTA_DmBleUpdateConnectionParam
+**
+** Description      Update connection parameters, can only be used when connection is up.
+**
+** Parameters:      bd_addr          - BD address of the peer
+**                  min_int   -     minimum connection interval, [0x0004~ 0x4000]
+**                  max_int   -     maximum connection interval, [0x0004~ 0x4000]
+**                  latency   -     slave latency [0 ~ 500]
+**                  timeout   -     supervision timeout [0x000a ~ 0xc80]
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_DmBleUpdateConnectionParam(BD_ADDR bd_addr, UINT16 min_int,
+                                    UINT16 max_int, UINT16 latency,
+                                    UINT16 timeout)
+{
+#if BLE_INCLUDED == TRUE
+    tBTA_DM_API_UPDATE_CONN_PARAM *p_msg =
+        (tBTA_DM_API_UPDATE_CONN_PARAM *)osi_calloc(sizeof(tBTA_DM_API_UPDATE_CONN_PARAM));
+
+    p_msg->hdr.event = BTA_DM_API_UPDATE_CONN_PARAM_EVT;
+    bdcpy(p_msg->bd_addr, bd_addr);
+    p_msg->min_int = min_int;
+    p_msg->max_int = max_int;
+    p_msg->latency = latency;
+    p_msg->timeout = timeout;
+
+    bta_sys_sendmsg(p_msg);
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         BTA_DmBleConfigLocalPrivacy
+**
+** Description      Enable/disable privacy on the local device
+**
+** Parameters:      privacy_enable   - enable/disabe privacy on remote device.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_DmBleConfigLocalPrivacy(BOOLEAN privacy_enable)
+{
+#if BLE_INCLUDED == TRUE && BLE_PRIVACY_SPT == TRUE
+    tBTA_DM_API_LOCAL_PRIVACY *p_msg =
+        (tBTA_DM_API_LOCAL_PRIVACY *)osi_calloc(sizeof(tBTA_DM_API_ENABLE_PRIVACY));
+
+    p_msg->hdr.event = BTA_DM_API_LOCAL_PRIVACY_EVT;
+    p_msg->privacy_enable   = privacy_enable;
+
+    bta_sys_sendmsg(p_msg);
+#else
+    UNUSED (privacy_enable);
+#endif
+}
+
+#if BLE_INCLUDED == TRUE
+/*******************************************************************************
+**
+** Function         BTA_BleEnableAdvInstance
+**
+** Description      This function enable a Multi-ADV instance with the specififed
+**                  adv parameters
+**
+** Parameters       p_params: pointer to the adv parameter structure.
+**                  p_cback: callback function associated to this adv instance.
+**                  p_ref: reference data pointer to this adv instance.
+**
+** Returns          BTA_SUCCESS if command started sucessfully; otherwise failure.
+**
+*******************************************************************************/
+void BTA_BleEnableAdvInstance (tBTA_BLE_ADV_PARAMS *p_params,
+                                tBTA_BLE_MULTI_ADV_CBACK *p_cback,
+                                void *p_ref)
+{
+    const size_t len = sizeof(tBTA_BLE_ADV_PARAMS) +
+        sizeof(tBTA_DM_API_BLE_MULTI_ADV_ENB);
+    tBTA_DM_API_BLE_MULTI_ADV_ENB *p_msg =
+        (tBTA_DM_API_BLE_MULTI_ADV_ENB *)osi_calloc(len);
+
+    APPL_TRACE_API("%s", __func__);
+
+    p_msg->hdr.event = BTA_DM_API_BLE_MULTI_ADV_ENB_EVT;
+    p_msg->p_cback = (void *)p_cback;
+    if (p_params != NULL) {
+        p_msg->p_params = (void *)(p_msg + 1);
+        memcpy(p_msg->p_params, p_params, sizeof(tBTA_BLE_ADV_PARAMS));
+    }
+    p_msg->p_ref = p_ref;
+
+    bta_sys_sendmsg(p_msg);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_BleUpdateAdvInstParam
+**
+** Description      This function update a Multi-ADV instance with the specififed
+**                  adv parameters.
+**
+** Parameters       inst_id: Adv instance to update the parameter.
+**                  p_params: pointer to the adv parameter structure.
+**
+** Returns          BTA_SUCCESS if command started sucessfully; otherwise failure.
+**
+*******************************************************************************/
+void BTA_BleUpdateAdvInstParam (UINT8 inst_id, tBTA_BLE_ADV_PARAMS *p_params)
+{
+    const size_t len = sizeof(tBTA_BLE_ADV_PARAMS) +
+        sizeof(tBTA_DM_API_BLE_MULTI_ADV_PARAM);
+    tBTA_DM_API_BLE_MULTI_ADV_PARAM *p_msg =
+        (tBTA_DM_API_BLE_MULTI_ADV_PARAM *)osi_calloc(len);
+
+    APPL_TRACE_API("%s", __func__);
+
+    p_msg->hdr.event = BTA_DM_API_BLE_MULTI_ADV_PARAM_UPD_EVT;
+    p_msg->inst_id = inst_id;
+    p_msg->p_params = (void *)(p_msg + 1);
+    memcpy(p_msg->p_params, p_params, sizeof(tBTA_BLE_ADV_PARAMS));
+
+    bta_sys_sendmsg(p_msg);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_BleCfgAdvInstData
+**
+** Description      This function configure a Multi-ADV instance with the specififed
+**                  adv data or scan response data.
+**
+** Parameter        inst_id: Adv instance to configure the adv data or scan response.
+**                  is_scan_rsp: is the data scan response or adv data.
+**                  data_mask: adv data type as bit mask.
+**                  p_data: pointer to the ADV data structure tBTA_BLE_ADV_DATA. This
+**                  memory space can not be freed until BTA_BLE_MULTI_ADV_DATA_EVT
+**                  is sent to application.
+**
+** Returns          BTA_SUCCESS if command started sucessfully; otherwise failure.
+**
+*******************************************************************************/
+void BTA_BleCfgAdvInstData (UINT8 inst_id, BOOLEAN is_scan_rsp,
+                            tBTA_BLE_AD_MASK data_mask,
+                            tBTA_BLE_ADV_DATA *p_data)
+{
+  tBTA_DM_API_BLE_MULTI_ADV_DATA *p_msg = osi_calloc(sizeof(*p_msg));
+
+  p_msg->hdr.event = BTA_DM_API_BLE_MULTI_ADV_DATA_EVT;
+  p_msg->inst_id = inst_id;
+  p_msg->is_scan_rsp = is_scan_rsp;
+  p_msg->data_mask = data_mask;
+  memcpy(&p_msg->data, p_data, sizeof(p_msg->data));
+
+  bta_sys_sendmsg(p_msg);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_BleDisableAdvInstance
+**
+** Description      This function disable a Multi-ADV instance.
+**
+** Parameter        inst_id: instance ID to disable.
+**
+** Returns          BTA_SUCCESS if command started sucessfully; otherwise failure.
+**
+*******************************************************************************/
+void BTA_BleDisableAdvInstance(UINT8 inst_id)
+{
+    tBTA_DM_API_BLE_MULTI_ADV_DISABLE *p_msg =
+        (tBTA_DM_API_BLE_MULTI_ADV_DISABLE *)osi_calloc(sizeof(tBTA_DM_API_BLE_MULTI_ADV_DISABLE));
+
+    APPL_TRACE_API("%s: %d", __func__, inst_id);
+
+    p_msg->hdr.event = BTA_DM_API_BLE_MULTI_ADV_DISABLE_EVT;
+    p_msg->inst_id = inst_id;
+
+    bta_sys_sendmsg(p_msg);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_DmBleCfgFilterCondition
+**
+** Description      This function is called to configure the adv data payload filter
+**                  condition.
+**
+** Parameters       action: to read/write/clear
+**                  cond_type: filter condition type
+**                  filt_index - Filter index
+**                  p_cond: filter condition parameter
+**                  p_cmpl_back - Command completed callback
+**                  ref_value - Reference value
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_DmBleCfgFilterCondition(tBTA_DM_BLE_SCAN_COND_OP action,
+                                 tBTA_DM_BLE_PF_COND_TYPE cond_type,
+                                 tBTA_DM_BLE_PF_FILT_INDEX filt_index,
+                                 tBTA_DM_BLE_PF_COND_PARAM *p_cond,
+                                 tBTA_DM_BLE_PF_CFG_CBACK *p_cmpl_cback,
+                                 tBTA_DM_BLE_REF_VALUE ref_value)
+{
+#if BLE_ANDROID_CONTROLLER_SCAN_FILTER == TRUE
+    tBTA_DM_API_CFG_FILTER_COND *p_msg;
+    APPL_TRACE_API ("BTA_DmBleCfgFilterCondition: %d, %d", action, cond_type);
+
+    UINT16  len = sizeof(tBTA_DM_API_CFG_FILTER_COND) +
+                  sizeof(tBTA_DM_BLE_PF_COND_PARAM);
+    UINT8 *p;
+
+    if (NULL != p_cond)
+    {
+        switch(cond_type)
+        {
+            case BTA_DM_BLE_PF_SRVC_DATA_PATTERN:
+            case BTA_DM_BLE_PF_MANU_DATA:
+                /* Length of pattern and pattern mask and other elements in */
+                /* tBTA_DM_BLE_PF_MANU_COND */
+                len += ((p_cond->manu_data.data_len) * 2) +
+                        sizeof(UINT16) + sizeof(UINT16) + sizeof(UINT8);
+                break;
+
+            case BTA_DM_BLE_PF_LOCAL_NAME:
+                len += ((p_cond->local_name.data_len) + sizeof(UINT8));
+                break;
+
+            case BTM_BLE_PF_SRVC_UUID:
+            case BTM_BLE_PF_SRVC_SOL_UUID:
+                len += sizeof(tBLE_BD_ADDR) + sizeof(tBTA_DM_BLE_PF_COND_MASK);
+                break;
+
+            default:
+                break;
+        }
+    }
+
+    p_msg = (tBTA_DM_API_CFG_FILTER_COND *)osi_calloc(len);
+    p_msg->hdr.event = BTA_DM_API_CFG_FILTER_COND_EVT;
+    p_msg->action = action;
+    p_msg->cond_type = cond_type;
+    p_msg->filt_index = filt_index;
+    p_msg->p_filt_cfg_cback = p_cmpl_cback;
+    p_msg->ref_value = ref_value;
+    if (p_cond) {
+        p_msg->p_cond_param = (tBTA_DM_BLE_PF_COND_PARAM *)(p_msg + 1);
+        memcpy(p_msg->p_cond_param, p_cond, sizeof(tBTA_DM_BLE_PF_COND_PARAM));
+
+        p = (UINT8 *)(p_msg->p_cond_param + 1);
+
+        if (cond_type == BTA_DM_BLE_PF_SRVC_DATA_PATTERN ||
+            cond_type == BTA_DM_BLE_PF_MANU_DATA) {
+            p_msg->p_cond_param->manu_data.p_pattern = p;
+            p_msg->p_cond_param->manu_data.data_len = p_cond->manu_data.data_len;
+            memcpy(p_msg->p_cond_param->manu_data.p_pattern, p_cond->manu_data.p_pattern,
+                   p_cond->manu_data.data_len);
+            p += p_cond->manu_data.data_len;
+
+            if (cond_type == BTA_DM_BLE_PF_MANU_DATA) {
+                p_msg->p_cond_param->manu_data.company_id_mask =
+                    p_cond->manu_data.company_id_mask;
+                if ( p_cond->manu_data.p_pattern_mask != NULL) {
+                    p_msg->p_cond_param->manu_data.p_pattern_mask = p;
+                    memcpy(p_msg->p_cond_param->manu_data.p_pattern_mask,
+                           p_cond->manu_data.p_pattern_mask,
+                           p_cond->manu_data.data_len);
+                }
+            }
+        } else if (cond_type == BTA_DM_BLE_PF_LOCAL_NAME) {
+            p_msg->p_cond_param->local_name.p_data = p;
+            p_msg->p_cond_param->local_name.data_len =
+                p_cond->local_name.data_len;
+            memcpy(p_msg->p_cond_param->local_name.p_data,
+                   p_cond->local_name.p_data, p_cond->local_name.data_len);
+        } else if (cond_type == BTM_BLE_PF_SRVC_UUID ||
+                   cond_type == BTM_BLE_PF_SRVC_SOL_UUID) {
+            if (p_cond->srvc_uuid.p_target_addr != NULL) {
+                p_msg->p_cond_param->srvc_uuid.p_target_addr = (tBLE_BD_ADDR *)(p);
+                p_msg->p_cond_param->srvc_uuid.p_target_addr->type =
+                    p_cond->srvc_uuid.p_target_addr->type;
+                memcpy(p_msg->p_cond_param->srvc_uuid.p_target_addr->bda,
+                       p_cond->srvc_uuid.p_target_addr->bda, BD_ADDR_LEN);
+                p = (UINT8 *)(p_msg->p_cond_param->srvc_uuid.p_target_addr + 1);
+            }
+            if (p_cond->srvc_uuid.p_uuid_mask) {
+                p_msg->p_cond_param->srvc_uuid.p_uuid_mask = (tBTA_DM_BLE_PF_COND_MASK *)p;
+                memcpy(p_msg->p_cond_param->srvc_uuid.p_uuid_mask,
+                       p_cond->srvc_uuid.p_uuid_mask,
+                       sizeof(tBTA_DM_BLE_PF_COND_MASK));
+            }
+        }
+    }
+
+    bta_sys_sendmsg(p_msg);
+
+#else
+    UNUSED(action);
+    UNUSED(cond_type);
+    UNUSED(filt_index);
+    UNUSED(p_cond);
+    UNUSED(p_cmpl_cback);
+    UNUSED(ref_value);
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         BTA_DmBleScanFilterSetup
+**
+** Description      This function is called to setup the adv data payload filter param
+**
+** Parameters       p_target: enable the filter condition on a target device; if NULL
+**                  filt_index - Filter index
+**                  p_filt_params -Filter parameters
+**                  ref_value - Reference value
+**                  action - Add, delete or clear
+**                  p_cmpl_back - Command completed callback
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_DmBleScanFilterSetup(UINT8 action,
+                              tBTA_DM_BLE_PF_FILT_INDEX filt_index,
+                              tBTA_DM_BLE_PF_FILT_PARAMS *p_filt_params,
+                              tBLE_BD_ADDR *p_target,
+                              tBTA_DM_BLE_PF_PARAM_CBACK *p_cmpl_cback,
+                              tBTA_DM_BLE_REF_VALUE ref_value)
+{
+#if BLE_ANDROID_CONTROLLER_SCAN_FILTER == TRUE
+    const size_t len = sizeof(tBTA_DM_API_SCAN_FILTER_PARAM_SETUP) +
+        sizeof(tBLE_BD_ADDR);
+    tBTA_DM_API_SCAN_FILTER_PARAM_SETUP *p_msg =
+        (tBTA_DM_API_SCAN_FILTER_PARAM_SETUP *)osi_calloc(len);
+
+    APPL_TRACE_API("%s: %d", __func__, action);
+
+    p_msg->hdr.event = BTA_DM_API_SCAN_FILTER_SETUP_EVT;
+    p_msg->action = action;
+    p_msg->filt_index = filt_index;
+    if (p_filt_params) {
+        memcpy(&p_msg->filt_params, p_filt_params,
+               sizeof(tBTA_DM_BLE_PF_FILT_PARAMS));
+    }
+    p_msg->p_filt_param_cback = p_cmpl_cback;
+    p_msg->ref_value        = ref_value;
+
+    if (p_target) {
+        p_msg->p_target = (tBLE_BD_ADDR *)(p_msg + 1);
+        memcpy(p_msg->p_target, p_target, sizeof(tBLE_BD_ADDR));
+    }
+
+    bta_sys_sendmsg(p_msg);
+
+#else
+    UNUSED(action);
+    UNUSED(filt_index);
+    UNUSED(p_filt_params);
+    UNUSED(p_target);
+    UNUSED(p_cmpl_cback);
+    UNUSED(ref_value);
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         BTA_DmBleGetEnergyInfo
+**
+** Description      This function is called to obtain the energy info
+**
+** Parameters       p_cmpl_cback - Command complete callback
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_DmBleGetEnergyInfo(tBTA_BLE_ENERGY_INFO_CBACK *p_cmpl_cback)
+{
+    const size_t len = sizeof(tBTA_DM_API_ENERGY_INFO) + sizeof(tBLE_BD_ADDR);
+    tBTA_DM_API_ENERGY_INFO *p_msg = (tBTA_DM_API_ENERGY_INFO *)osi_calloc(len);
+
+    APPL_TRACE_API("%s", __func__);
+
+    p_msg->hdr.event = BTA_DM_API_BLE_ENERGY_INFO_EVT;
+    p_msg->p_energy_info_cback = p_cmpl_cback;
+
+    bta_sys_sendmsg(p_msg);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_DmEnableScanFilter
+**
+** Description      This function is called to enable the adv data payload filter
+**
+** Parameters       action - enable or disable the APCF feature
+**                  p_cmpl_cback - Command completed callback
+**                  ref_value - Reference value
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_DmEnableScanFilter(UINT8 action, tBTA_DM_BLE_PF_STATUS_CBACK *p_cmpl_cback,
+                                    tBTA_DM_BLE_REF_VALUE ref_value)
+{
+#if BLE_ANDROID_CONTROLLER_SCAN_FILTER == TRUE
+    const size_t len = sizeof(tBTA_DM_API_ENABLE_SCAN_FILTER) +
+        sizeof(tBLE_BD_ADDR);
+    tBTA_DM_API_ENABLE_SCAN_FILTER *p_msg =
+        (tBTA_DM_API_ENABLE_SCAN_FILTER *)osi_calloc(len);
+
+    APPL_TRACE_API("%s: %d", __func__, action);
+
+    p_msg->hdr.event = BTA_DM_API_SCAN_FILTER_ENABLE_EVT;
+    p_msg->action = action;
+    p_msg->ref_value = ref_value;
+    p_msg->p_filt_status_cback = p_cmpl_cback;
+
+    bta_sys_sendmsg(p_msg);
+
+#else
+    UNUSED(action);
+    UNUSED(p_cmpl_cback);
+    UNUSED(ref_value);
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         BTA_DmBleUpdateConnectionParams
+**
+** Description      Update connection parameters, can only be used when connection is up.
+**
+** Parameters:      bd_addr   - BD address of the peer
+**                  min_int   -     minimum connection interval, [0x0004~ 0x4000]
+**                  max_int   -     maximum connection interval, [0x0004~ 0x4000]
+**                  latency   -     slave latency [0 ~ 500]
+**                  timeout   -     supervision timeout [0x000a ~ 0xc80]
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_DmBleUpdateConnectionParams(BD_ADDR bd_addr, UINT16 min_int, UINT16 max_int,
+                                    UINT16 latency, UINT16 timeout)
+{
+    tBTA_DM_API_UPDATE_CONN_PARAM *p_msg =
+        (tBTA_DM_API_UPDATE_CONN_PARAM *)osi_calloc(sizeof(tBTA_DM_API_UPDATE_CONN_PARAM));
+
+    p_msg->hdr.event = BTA_DM_API_UPDATE_CONN_PARAM_EVT;
+    bdcpy(p_msg->bd_addr, bd_addr);
+    p_msg->min_int = min_int;
+    p_msg->max_int = max_int;
+    p_msg->latency = latency;
+    p_msg->timeout = timeout;
+
+    bta_sys_sendmsg(p_msg);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_DmBleSetDataLength
+**
+** Description      This function is to set maximum LE data packet size
+**
+** Returns          void
+**
+**
+*******************************************************************************/
+void BTA_DmBleSetDataLength(BD_ADDR remote_device, UINT16 tx_data_length)
+{
+    tBTA_DM_API_BLE_SET_DATA_LENGTH *p_msg =
+        (tBTA_DM_API_BLE_SET_DATA_LENGTH *)osi_malloc(sizeof(tBTA_DM_API_BLE_SET_DATA_LENGTH));
+
+    bdcpy(p_msg->remote_bda, remote_device);
+    p_msg->hdr.event = BTA_DM_API_SET_DATA_LENGTH_EVT;
+    p_msg->tx_data_length = tx_data_length;
+
+    bta_sys_sendmsg(p_msg);
+}
+
+#endif
+
+/*******************************************************************************
+**
+** Function         BTA_DmSetEncryption
+**
+** Description      This function is called to ensure that connection is
+**                  encrypted.  Should be called only on an open connection.
+**                  Typically only needed for connections that first want to
+**                  bring up unencrypted links, then later encrypt them.
+**
+** Parameters:      bd_addr       - Address of the peer device
+**                  transport     - transport of the link to be encruypted
+**                  p_callback    - Pointer to callback function to indicat the
+**                                  link encryption status
+**                  sec_act       - This is the security action to indicate
+**                                  what knid of BLE security level is required for
+**                                  the BLE link if the BLE is supported
+**                                  Note: This parameter is ignored for the BR/EDR link
+**                                        or the BLE is not supported
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_DmSetEncryption(BD_ADDR bd_addr, tBTA_TRANSPORT transport, tBTA_DM_ENCRYPT_CBACK *p_callback,
+                            tBTA_DM_BLE_SEC_ACT sec_act)
+{
+    tBTA_DM_API_SET_ENCRYPTION *p_msg = (tBTA_DM_API_SET_ENCRYPTION *)osi_calloc(sizeof(tBTA_DM_API_SET_ENCRYPTION));
+
+    APPL_TRACE_API("%s", __func__);
+
+    p_msg->hdr.event = BTA_DM_API_SET_ENCRYPTION_EVT;
+    memcpy(p_msg->bd_addr, bd_addr, BD_ADDR_LEN);
+    p_msg->transport = transport;
+    p_msg->p_callback = p_callback;
+    p_msg->sec_act = sec_act;
+
+    bta_sys_sendmsg(p_msg);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_DmCloseACL
+**
+** Description      This function force to close an ACL connection and remove the
+**                  device from the security database list of known devices.
+**
+** Parameters:      bd_addr       - Address of the peer device
+**                  remove_dev    - remove device or not after link down
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_DmCloseACL(BD_ADDR bd_addr, BOOLEAN remove_dev, tBTA_TRANSPORT transport)
+{
+    tBTA_DM_API_REMOVE_ACL *p_msg =
+        (tBTA_DM_API_REMOVE_ACL *)osi_calloc(sizeof(tBTA_DM_API_REMOVE_ACL));
+
+    APPL_TRACE_API("%s", __func__);
+
+    p_msg->hdr.event = BTA_DM_API_REMOVE_ACL_EVT;
+    memcpy(p_msg->bd_addr, bd_addr, BD_ADDR_LEN);
+    p_msg->remove_dev = remove_dev;
+    p_msg->transport = transport;
+
+    bta_sys_sendmsg(p_msg);
+}
+
+#if BLE_INCLUDED == TRUE
+/*******************************************************************************
+**
+** Function         BTA_DmBleObserve
+**
+** Description      This procedure keep the device listening for advertising
+**                  events from a broadcast device.
+**
+** Parameters       start: start or stop observe.
+**
+** Returns          void
+
+**
+** Returns          void.
+**
+*******************************************************************************/
+extern void BTA_DmBleObserve(BOOLEAN start, UINT8 duration,
+                             tBTA_DM_SEARCH_CBACK *p_results_cb)
+{
+    tBTA_DM_API_BLE_OBSERVE *p_msg =
+        (tBTA_DM_API_BLE_OBSERVE *)osi_calloc(sizeof(tBTA_DM_API_BLE_OBSERVE));
+
+    APPL_TRACE_API("%s:start = %d ", __func__, start);
+
+    p_msg->hdr.event = BTA_DM_API_BLE_OBSERVE_EVT;
+    p_msg->start = start;
+    p_msg->duration = duration;
+    p_msg->p_cback = p_results_cb;
+
+    bta_sys_sendmsg(p_msg);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_VendorInit
+**
+** Description      This function initializes vendor specific
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_VendorInit (void)
+{
+    APPL_TRACE_API("BTA_VendorInit");
+}
+
+/*******************************************************************************
+**
+** Function         BTA_VendorCleanup
+**
+** Description      This function frees up Broadcom specific VS specific dynamic memory
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_VendorCleanup (void)
+{
+    tBTM_BLE_VSC_CB cmn_ble_vsc_cb;
+    BTM_BleGetVendorCapabilities(&cmn_ble_vsc_cb);
+
+#if (BLE_INCLUDED == TRUE && BLE_ANDROID_CONTROLLER_SCAN_FILTER == TRUE)
+    if (cmn_ble_vsc_cb.max_filter > 0)
+    {
+        btm_ble_adv_filter_cleanup();
+#if BLE_PRIVACY_SPT == TRUE
+        btm_ble_resolving_list_cleanup ();
+#endif
+    }
+
+    if (cmn_ble_vsc_cb.tot_scan_results_strg > 0)
+        btm_ble_batchscan_cleanup();
+#endif
+
+   if(cmn_ble_vsc_cb.adv_inst_max > 0)
+      btm_ble_multi_adv_cleanup();
+}
+
+#endif
diff --git a/rtkbt/code/bt/bta/dm/bta_dm_cfg.c b/rtkbt/code/bt/bta/dm/bta_dm_cfg.c
new file mode 100755
index 0000000..744a6fc
--- /dev/null
+++ b/rtkbt/code/bt/bta/dm/bta_dm_cfg.c
@@ -0,0 +1,587 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains compile-time configurable constants for the device
+ *  manager.
+ *
+ ******************************************************************************/
+
+#include <stddef.h>
+#include "bt_target.h"
+#include "bta_sys.h"
+#include "bta_api.h"
+#include "bta_dm_int.h"
+#include "bta_jv_api.h"
+
+#ifndef BTA_DM_LINK_POLICY_SETTINGS
+#define BTA_DM_LINK_POLICY_SETTINGS    (HCI_ENABLE_MASTER_SLAVE_SWITCH | HCI_ENABLE_HOLD_MODE | HCI_ENABLE_SNIFF_MODE | HCI_ENABLE_PARK_MODE)
+#endif
+
+/* page timeout in 625uS */
+#ifndef BTA_DM_PAGE_TIMEOUT
+#define BTA_DM_PAGE_TIMEOUT    8192
+#endif
+
+/* link supervision timeout in 625uS (5 secs) */
+#ifndef BTA_DM_LINK_TIMEOUT
+#define BTA_DM_LINK_TIMEOUT    8000
+#endif
+
+/* TRUE to avoid scatternet when av is streaming (be the master) */
+#ifndef BTA_DM_AVOID_SCATTER_A2DP
+#define BTA_DM_AVOID_SCATTER_A2DP    TRUE
+#endif
+
+/* For Insight, PM cfg lookup tables are runtime configurable (to allow tweaking of params for power consumption measurements) */
+#ifndef BTE_SIM_APP
+#define tBTA_DM_PM_TYPE_QUALIFIER   const
+#else
+#define tBTA_DM_PM_TYPE_QUALIFIER
+#endif
+
+
+const tBTA_DM_CFG bta_dm_cfg =
+{
+    /* mobile phone COD */
+    BTA_DM_COD,
+    /* link policy settings */
+    BTA_DM_LINK_POLICY_SETTINGS,
+    /* page timeout in 625uS */
+    BTA_DM_PAGE_TIMEOUT,
+    /* link supervision timeout in 625uS*/
+    BTA_DM_LINK_TIMEOUT,
+    /* TRUE to avoid scatternet when av is streaming (be the master) */
+    BTA_DM_AVOID_SCATTER_A2DP
+};
+
+#ifndef BTA_DM_SCATTERNET
+/* By default, allow partial scatternet */
+#define BTA_DM_SCATTERNET BTA_DM_PARTIAL_SCATTERNET
+#endif
+
+#ifndef BTA_HH_ROLE
+/* By default, do not specify HH role (backward compatibility) */
+#define BTA_HH_ROLE BTA_ANY_ROLE
+#endif
+
+#ifndef BTA_AV_ROLE
+/* By default, AV role (backward BTA_MASTER_ROLE_PREF) */
+#define BTA_AV_ROLE BTA_MASTER_ROLE_PREF
+#endif
+
+#ifndef BTA_PANU_ROLE
+/* By default, AV role (backward BTA_MASTER_ROLE_PREF) */
+#define BTA_PANU_ROLE BTA_SLAVE_ROLE_ONLY
+#endif
+#define BTA_DM_NUM_RM_ENTRY    6
+
+/* appids for PAN used by insight sample application
+   these have to be same as defined in btui_int.h */
+#define BTUI_PAN_ID_PANU         0
+#define BTUI_PAN_ID_NAP          1
+#define BTUI_PAN_ID_GN           2
+
+/* First element is always for SYS:
+   app_id = # of entries table, cfg is
+   device scatternet support */
+const tBTA_DM_RM bta_dm_rm_cfg[] =
+{
+    {BTA_ID_SYS, BTA_DM_NUM_RM_ENTRY, BTA_DM_SCATTERNET},
+    {BTA_ID_PAN, BTUI_PAN_ID_NAP, BTA_ANY_ROLE},
+    {BTA_ID_PAN, BTUI_PAN_ID_GN, BTA_ANY_ROLE},
+    {BTA_ID_PAN, BTA_APP_ID_PAN_MULTI, BTA_MASTER_ROLE_ONLY},
+    {BTA_ID_PAN, BTUI_PAN_ID_PANU, BTA_PANU_ROLE},
+    {BTA_ID_HH,  BTA_ALL_APP_ID, BTA_HH_ROLE},
+    {BTA_ID_AV,  BTA_ALL_APP_ID, BTA_AV_ROLE}
+};
+
+
+tBTA_DM_CFG *p_bta_dm_cfg = (tBTA_DM_CFG *)&bta_dm_cfg;
+
+tBTA_DM_RM *p_bta_dm_rm_cfg = (tBTA_DM_RM *)&bta_dm_rm_cfg;
+
+#if BLE_INCLUDED == TRUE
+#  define BTA_DM_NUM_PM_ENTRY         23  /* number of entries in bta_dm_pm_cfg except the first */
+#  define BTA_DM_NUM_PM_SPEC          15  /* number of entries in bta_dm_pm_spec */
+#else
+#  define BTA_DM_NUM_PM_ENTRY         21  /* number of entries in bta_dm_pm_cfg except the first */
+#  define BTA_DM_NUM_PM_SPEC          13  /* number of entries in bta_dm_pm_spec */
+#endif
+
+tBTA_DM_PM_TYPE_QUALIFIER tBTA_DM_PM_CFG bta_dm_pm_cfg[BTA_DM_NUM_PM_ENTRY + 1] =
+{
+  {BTA_ID_SYS, BTA_DM_NUM_PM_ENTRY, 0},  /* reserved: specifies length of this table. */
+  {BTA_ID_AG,  BTA_ALL_APP_ID,      0},  /* ag uses first spec table for app id 0 */
+  {BTA_ID_CT,  1,                   1},  /* ct (BTA_ID_CT,APP ID=1) spec table */
+  {BTA_ID_CG,  BTA_ALL_APP_ID,      1},  /* cg resue ct spec table */
+  {BTA_ID_DG,  BTA_ALL_APP_ID,      2},  /* dg spec table */
+  {BTA_ID_AV,  BTA_ALL_APP_ID,      4},  /* av spec table */
+  {BTA_ID_AVK, BTA_ALL_APP_ID,     12},  /* avk spec table */
+  {BTA_ID_FTC, BTA_ALL_APP_ID,      6},  /* ftc spec table */
+  {BTA_ID_FTS, BTA_ALL_APP_ID,      7},  /* fts spec table */
+  {BTA_ID_HD,  BTA_ALL_APP_ID,      3},  /* hd spec table */
+  {BTA_ID_HH,  BTA_ALL_APP_ID,      5},  /* hh spec table */
+  {BTA_ID_PBC, BTA_ALL_APP_ID,      2},  /* reuse dg spec table */
+  {BTA_ID_PBS, BTA_ALL_APP_ID,      7},  /* reuse fts spec table */
+  {BTA_ID_OPC, BTA_ALL_APP_ID,      6},  /* reuse ftc spec table */
+  {BTA_ID_OPS, BTA_ALL_APP_ID,      7},  /* reuse fts spec table */
+  {BTA_ID_MSE, BTA_ALL_APP_ID,      7},  /* reuse fts spec table */
+  {BTA_ID_JV,  BTA_JV_PM_ID_1,      6},  /* app BTA_JV_PM_ID_1, reuse ftc spec table */
+  {BTA_ID_JV,  BTA_ALL_APP_ID,      7},  /* reuse fts spec table */
+  {BTA_ID_HL,  BTA_ALL_APP_ID,      8},  /* reuse fts spec table */
+  {BTA_ID_PAN, BTUI_PAN_ID_PANU,    9},  /* PANU spec table */
+  {BTA_ID_PAN, BTUI_PAN_ID_NAP,    10},  /* NAP spec table */
+  {BTA_ID_HS,  BTA_ALL_APP_ID,     11}   /* HS spec table */
+#if BLE_INCLUDED == TRUE
+  ,{BTA_ID_GATTC,  BTA_ALL_APP_ID,  13}  /* gattc spec table */
+  ,{BTA_ID_GATTS,  BTA_ALL_APP_ID,  14}  /* gatts spec table */
+#endif
+};
+
+tBTA_DM_PM_TYPE_QUALIFIER tBTA_DM_PM_SPEC bta_dm_pm_spec[BTA_DM_NUM_PM_SPEC] =
+{
+  /* AG : 0 */
+ {
+  (BTA_DM_PM_SNIFF | BTA_DM_PM_PARK),                           /* allow park & sniff */
+#if (BTM_SSR_INCLUDED == TRUE)
+  (BTA_DM_PM_SSR2),                                              /* the SSR entry */
+#endif
+  {
+      {{BTA_DM_PM_SNIFF_A2DP_IDX,  7000},   {BTA_DM_PM_NO_ACTION, 0}},   /* conn open sniff  */
+      {{BTA_DM_PM_NO_PREF,   0},   {BTA_DM_PM_NO_ACTION, 0}},   /* conn close  */
+      {{BTA_DM_PM_NO_ACTION, 0},   {BTA_DM_PM_NO_ACTION, 0}},   /* app open */
+      {{BTA_DM_PM_NO_ACTION, 0},   {BTA_DM_PM_NO_ACTION, 0}},   /* app close */
+      {{BTA_DM_PM_SNIFF_SCO_OPEN_IDX, 7000},   {BTA_DM_PM_NO_ACTION, 0}},   /* sco open, active */
+      {{BTA_DM_PM_SNIFF_A2DP_IDX,  7000},   {BTA_DM_PM_NO_ACTION, 0}},   /* sco close sniff  */
+      {{BTA_DM_PM_NO_ACTION, 0},   {BTA_DM_PM_NO_ACTION, 0}},   /* idle */
+      {{BTA_DM_PM_ACTIVE,    0},   {BTA_DM_PM_NO_ACTION, 0}},   /* busy */
+      {{BTA_DM_PM_RETRY,  7000},   {BTA_DM_PM_NO_ACTION, 0}}    /* mode change retry */
+  }
+ },
+
+  /* CT, CG : 1 */
+ {
+  (BTA_DM_PM_SNIFF | BTA_DM_PM_PARK),                           /* allow park & sniff */
+#if (BTM_SSR_INCLUDED == TRUE)
+  (BTA_DM_PM_SSR2),                                              /* the SSR entry */
+#endif
+  {
+      {{BTA_DM_PM_PARK,   5000},  {BTA_DM_PM_NO_ACTION, 0}},    /* conn open  park */
+      {{BTA_DM_PM_NO_PREF,   0},  {BTA_DM_PM_NO_ACTION, 0}},    /* conn close  */
+      {{BTA_DM_PM_NO_ACTION, 0},  {BTA_DM_PM_NO_ACTION, 0}},    /* app open */
+      {{BTA_DM_PM_NO_ACTION, 0},  {BTA_DM_PM_NO_ACTION, 0}},    /* app close */
+      {{BTA_DM_PM_SNIFF_A2DP_IDX, 5000}, {BTA_DM_PM_NO_ACTION, 0}}, /* sco open sniff */
+      {{BTA_DM_PM_PARK,   5000},  {BTA_DM_PM_NO_ACTION, 0}},    /* sco close  park */
+      {{BTA_DM_PM_NO_ACTION, 0},  {BTA_DM_PM_NO_ACTION, 0}},    /* idle */
+      {{BTA_DM_PM_NO_ACTION, 0},  {BTA_DM_PM_NO_ACTION, 0}},    /* busy */
+      {{BTA_DM_PM_RETRY,  5000},  {BTA_DM_PM_NO_ACTION, 0}}     /* mode change retry */
+  }
+ },
+
+  /* DG, PBC : 2 */
+ {
+  (BTA_DM_PM_ACTIVE),                                             /* no power saving mode allowed */
+#if (BTM_SSR_INCLUDED == TRUE)
+  (BTA_DM_PM_SSR2),                                              /* the SSR entry */
+#endif
+  {
+      {{BTA_DM_PM_SNIFF,  5000},   {BTA_DM_PM_NO_ACTION, 0}},    /* conn open active */
+      {{BTA_DM_PM_NO_PREF,   0},   {BTA_DM_PM_NO_ACTION, 0}},    /* conn close  */
+      {{BTA_DM_PM_ACTIVE,    0},   {BTA_DM_PM_NO_ACTION, 0}},    /* app open */
+      {{BTA_DM_PM_NO_ACTION, 0},   {BTA_DM_PM_NO_ACTION, 0}},    /* app close */
+      {{BTA_DM_PM_NO_ACTION, 0},   {BTA_DM_PM_NO_ACTION, 0}},    /* sco open  */
+      {{BTA_DM_PM_NO_ACTION, 0},   {BTA_DM_PM_NO_ACTION, 0}},    /* sco close   */
+      {{BTA_DM_PM_SNIFF,  1000},   {BTA_DM_PM_NO_ACTION, 0}},    /* idle */
+      {{BTA_DM_PM_ACTIVE,    0},   {BTA_DM_PM_NO_ACTION, 0}},    /* busy */
+      {{BTA_DM_PM_NO_ACTION, 0},   {BTA_DM_PM_NO_ACTION, 0}}     /* mode change retry */
+  }
+ },
+
+   /* HD : 3 */
+ {
+  (BTA_DM_PM_SNIFF | BTA_DM_PM_PARK),                            /* allow park & sniff */
+#if (BTM_SSR_INCLUDED == TRUE)
+  (BTA_DM_PM_SSR3),                                              /* the SSR entry */
+#endif
+  {
+      {{BTA_DM_PM_SNIFF_HD_ACTIVE_IDX, 5000}, {BTA_DM_PM_NO_ACTION, 0}}, /* conn open sniff */
+      {{BTA_DM_PM_NO_PREF,   0},   {BTA_DM_PM_NO_ACTION, 0}},    /* conn close */
+      {{BTA_DM_PM_NO_ACTION, 0},   {BTA_DM_PM_NO_ACTION, 0}},    /* app open */
+      {{BTA_DM_PM_NO_ACTION, 0},   {BTA_DM_PM_NO_ACTION, 0}},    /* app close */
+      {{BTA_DM_PM_NO_ACTION, 0},   {BTA_DM_PM_NO_ACTION, 0}},    /* sco open  */
+      {{BTA_DM_PM_NO_ACTION, 0},   {BTA_DM_PM_NO_ACTION, 0}},    /* sco close */
+      {{BTA_DM_PM_SNIFF_HD_IDLE_IDX, 5000}, {BTA_DM_PM_NO_ACTION, 0}},   /* idle */
+      {{BTA_DM_PM_SNIFF_HD_ACTIVE_IDX, 0}, {BTA_DM_PM_NO_ACTION, 0}},    /* busy */
+      {{BTA_DM_PM_NO_ACTION, 0},   {BTA_DM_PM_NO_ACTION, 0}}     /* mode change retry */
+  }
+ },
+
+   /* AV : 4 */
+ {
+  (BTA_DM_PM_SNIFF),                                             /* allow sniff */
+#if (BTM_SSR_INCLUDED == TRUE)
+  (BTA_DM_PM_SSR2),                                              /* the SSR entry */
+#endif
+  {
+      {{BTA_DM_PM_SNIFF_A2DP_IDX, 7000}, {BTA_DM_PM_NO_ACTION, 0}}, /* conn open  sniff */
+      {{BTA_DM_PM_NO_PREF,   0},   {BTA_DM_PM_NO_ACTION, 0}},    /* conn close  */
+      {{BTA_DM_PM_NO_ACTION, 0},   {BTA_DM_PM_NO_ACTION, 0}},    /* app open */
+      {{BTA_DM_PM_NO_ACTION, 0},   {BTA_DM_PM_NO_ACTION, 0}},    /* app close */
+      {{BTA_DM_PM_NO_ACTION, 0},   {BTA_DM_PM_NO_ACTION, 0}},    /* sco open  */
+      {{BTA_DM_PM_NO_ACTION, 0},   {BTA_DM_PM_NO_ACTION, 0}},    /* sco close   */
+      {{BTA_DM_PM_SNIFF_A2DP_IDX, 7000}, {BTA_DM_PM_NO_ACTION, 0}}, /* idle */
+      {{BTA_DM_PM_ACTIVE,    0},   {BTA_DM_PM_NO_ACTION, 0}},    /* busy */
+      {{BTA_DM_PM_NO_ACTION, 0},   {BTA_DM_PM_NO_ACTION, 0}}     /* mode change retry */
+  }
+ },
+
+  /* HH : 5 */
+ {
+  (BTA_DM_PM_SNIFF | BTA_DM_PM_PARK),                            /* allow park & sniff */
+#if (BTM_SSR_INCLUDED == TRUE)
+  (BTA_DM_PM_SSR1),                                              /* the SSR entry */
+#endif
+  {
+      {{BTA_DM_PM_SNIFF_HH_OPEN_IDX, BTA_DM_PM_HH_OPEN_DELAY},{BTA_DM_PM_NO_ACTION, 0}}, /* conn open  sniff */
+      {{BTA_DM_PM_NO_PREF,   0},   {BTA_DM_PM_NO_ACTION, 0}},    /* conn close  */
+      {{BTA_DM_PM_NO_ACTION, 0},   {BTA_DM_PM_NO_ACTION, 0}},    /* app open */
+      {{BTA_DM_PM_NO_ACTION, 0},   {BTA_DM_PM_NO_ACTION, 0}},    /* app close */
+      {{BTA_DM_PM_NO_ACTION, 0},   {BTA_DM_PM_NO_ACTION, 0}},    /* sco open  */
+      {{BTA_DM_PM_NO_ACTION, 0},   {BTA_DM_PM_NO_ACTION, 0}},    /* sco close, used for HH suspend   */
+      {{BTA_DM_PM_SNIFF_HH_IDLE_IDX, BTA_DM_PM_HH_IDLE_DELAY},   {BTA_DM_PM_NO_ACTION, 0}},    /* idle */
+      {{BTA_DM_PM_SNIFF_HH_ACTIVE_IDX, BTA_DM_PM_HH_ACTIVE_DELAY},   {BTA_DM_PM_NO_ACTION, 0}},    /* busy */
+      {{BTA_DM_PM_NO_ACTION, 0},   {BTA_DM_PM_NO_ACTION, 0}}     /* mode change retry */
+  }
+ },
+
+  /* FTC, OPC, JV : 6 */
+ {
+  (BTA_DM_PM_SNIFF),                                             /* allow sniff */
+#if (BTM_SSR_INCLUDED == TRUE)
+  (BTA_DM_PM_SSR2),                                              /* the SSR entry */
+#endif
+  {
+      {{BTA_DM_PM_ACTIVE,    0},   {BTA_DM_PM_NO_ACTION, 0}},    /* conn open  active */
+      {{BTA_DM_PM_NO_PREF,   0},   {BTA_DM_PM_NO_ACTION, 0}},    /* conn close  */
+      {{BTA_DM_PM_ACTIVE,    0},   {BTA_DM_PM_NO_ACTION, 0}},    /* app open */
+      {{BTA_DM_PM_NO_ACTION, 0},   {BTA_DM_PM_NO_ACTION, 0}},    /* app close */
+      {{BTA_DM_PM_NO_ACTION, 0},   {BTA_DM_PM_NO_ACTION, 0}},    /* sco open  */
+      {{BTA_DM_PM_NO_ACTION, 0},   {BTA_DM_PM_NO_ACTION, 0}},    /* sco close   */
+      {{BTA_DM_PM_SNIFF_A2DP_IDX, 5000},   {BTA_DM_PM_NO_ACTION, 0}},    /* idle */
+      {{BTA_DM_PM_ACTIVE,    0},   {BTA_DM_PM_NO_ACTION, 0}},    /* busy */
+      {{BTA_DM_PM_NO_ACTION, 0},   {BTA_DM_PM_NO_ACTION, 0}}     /* mode change retry */
+  }
+ },
+
+  /* FTS, PBS, OPS, MSE, BTA_JV_PM_ID_1 : 7 */
+ {
+  (BTA_DM_PM_SNIFF),                                             /* allow sniff */
+#if (BTM_SSR_INCLUDED == TRUE)
+  (BTA_DM_PM_SSR2),                                              /* the SSR entry */
+#endif
+  {
+      {{BTA_DM_PM_ACTIVE,    0},   {BTA_DM_PM_NO_ACTION, 0}},    /* conn open  active */
+      {{BTA_DM_PM_NO_PREF,   0},   {BTA_DM_PM_NO_ACTION, 0}},    /* conn close  */
+      {{BTA_DM_PM_ACTIVE,    0},   {BTA_DM_PM_NO_ACTION, 0}},    /* app open */
+      {{BTA_DM_PM_NO_ACTION, 0},   {BTA_DM_PM_NO_ACTION, 0}},    /* app close */
+      {{BTA_DM_PM_NO_ACTION, 0},   {BTA_DM_PM_NO_ACTION, 0}},    /* sco open  */
+      {{BTA_DM_PM_NO_ACTION, 0},   {BTA_DM_PM_NO_ACTION, 0}},    /* sco close   */
+      {{BTA_DM_PM_SNIFF_A2DP_IDX, BTA_FTS_OPS_IDLE_TO_SNIFF_DELAY_MS}, {BTA_DM_PM_NO_ACTION, 0}}, /* idle */
+      {{BTA_DM_PM_ACTIVE,    0},   {BTA_DM_PM_NO_ACTION, 0}},    /* busy */
+      {{BTA_DM_PM_NO_ACTION, 0},   {BTA_DM_PM_NO_ACTION, 0}}     /* mode change retry */
+  }
+ },
+
+   /* HL : 8 */
+ {
+  (BTA_DM_PM_SNIFF),                                             /* allow sniff */
+#if (BTM_SSR_INCLUDED == TRUE)
+  (BTA_DM_PM_SSR2),                                              /* the SSR entry */
+#endif
+  {
+      {{BTA_DM_PM_SNIFF_A2DP_IDX, 5000}, {BTA_DM_PM_NO_ACTION, 0}}, /* conn open sniff  */
+      {{BTA_DM_PM_NO_PREF,   0},   {BTA_DM_PM_NO_ACTION, 0}},   /* conn close  */
+      {{BTA_DM_PM_NO_ACTION, 0},   {BTA_DM_PM_NO_ACTION, 0}},   /* app open */
+      {{BTA_DM_PM_NO_ACTION, 0},   {BTA_DM_PM_NO_ACTION, 0}},   /* app close */
+      {{BTA_DM_PM_NO_ACTION, 0},   {BTA_DM_PM_NO_ACTION, 0}},   /* sco open, active */
+      {{BTA_DM_PM_NO_ACTION, 0},   {BTA_DM_PM_NO_ACTION, 0}},   /* sco close sniff  */
+      {{BTA_DM_PM_NO_ACTION, 0},   {BTA_DM_PM_NO_ACTION, 0}},   /* idle */
+      {{BTA_DM_PM_ACTIVE,    0},   {BTA_DM_PM_NO_ACTION, 0}},   /* busy */
+      {{BTA_DM_PM_NO_ACTION, 0},   {BTA_DM_PM_NO_ACTION, 0}}    /* mode change retry */
+  }
+ },
+
+  /* PANU : 9 */
+ {
+  (BTA_DM_PM_SNIFF),                                             /* allow sniff */
+#if (BTM_SSR_INCLUDED == TRUE)
+  (BTA_DM_PM_SSR2),                                              /* the SSR entry */
+#endif
+  {
+      {{BTA_DM_PM_ACTIVE,    0},   {BTA_DM_PM_NO_ACTION, 0}},    /* conn open  active */
+      {{BTA_DM_PM_NO_PREF,   0},   {BTA_DM_PM_NO_ACTION, 0}},    /* conn close  */
+      {{BTA_DM_PM_ACTIVE,    0},   {BTA_DM_PM_NO_ACTION, 0}},    /* app open */
+      {{BTA_DM_PM_NO_ACTION, 0},   {BTA_DM_PM_NO_ACTION, 0}},    /* app close */
+      {{BTA_DM_PM_NO_ACTION, 0},   {BTA_DM_PM_NO_ACTION, 0}},    /* sco open  */
+      {{BTA_DM_PM_NO_ACTION, 0},   {BTA_DM_PM_NO_ACTION, 0}},    /* sco close   */
+      {{BTA_DM_PM_SNIFF_A2DP_IDX, 5000},   {BTA_DM_PM_NO_ACTION, 0}},    /* idle */
+      {{BTA_DM_PM_ACTIVE,    0},   {BTA_DM_PM_NO_ACTION, 0}},    /* busy */
+      {{BTA_DM_PM_NO_ACTION, 0},   {BTA_DM_PM_NO_ACTION, 0}}     /* mode change retry */
+  }
+ },
+
+  /* NAP : 10 */
+ {
+  (BTA_DM_PM_SNIFF),                                             /* allow sniff */
+#if (BTM_SSR_INCLUDED == TRUE)
+  (BTA_DM_PM_SSR2),                                              /* the SSR entry */
+#endif
+  {
+      {{BTA_DM_PM_ACTIVE,    0},   {BTA_DM_PM_NO_ACTION, 0}},    /* conn open  active */
+      {{BTA_DM_PM_NO_PREF,   0},   {BTA_DM_PM_NO_ACTION, 0}},    /* conn close  */
+      {{BTA_DM_PM_ACTIVE,    0},   {BTA_DM_PM_NO_ACTION, 0}},    /* app open */
+      {{BTA_DM_PM_NO_ACTION, 0},   {BTA_DM_PM_NO_ACTION, 0}},    /* app close */
+      {{BTA_DM_PM_NO_ACTION, 0},   {BTA_DM_PM_NO_ACTION, 0}},    /* sco open  */
+      {{BTA_DM_PM_NO_ACTION, 0},   {BTA_DM_PM_NO_ACTION, 0}},    /* sco close   */
+      {{BTA_DM_PM_SNIFF_A2DP_IDX, 5000},   {BTA_DM_PM_NO_ACTION, 0}},    /* idle */
+      {{BTA_DM_PM_ACTIVE,    0},   {BTA_DM_PM_NO_ACTION, 0}},   /* busy */
+
+      {{BTA_DM_PM_NO_ACTION, 0},   {BTA_DM_PM_NO_ACTION, 0}}     /* mode change retry */
+  }
+ },
+
+  /* HS : 11 */
+ {
+  (BTA_DM_PM_SNIFF | BTA_DM_PM_PARK),                           /* allow park & sniff */
+#if (BTM_SSR_INCLUDED == TRUE)
+  (BTA_DM_PM_SSR2),                                              /* the SSR entry */
+#endif
+  {
+      {{BTA_DM_PM_SNIFF,  7000},   {BTA_DM_PM_NO_ACTION, 0}},   /* conn open sniff  */
+      {{BTA_DM_PM_NO_PREF,   0},   {BTA_DM_PM_NO_ACTION, 0}},   /* conn close  */
+      {{BTA_DM_PM_NO_ACTION, 0},   {BTA_DM_PM_NO_ACTION, 0}},   /* app open */
+      {{BTA_DM_PM_NO_ACTION, 0},   {BTA_DM_PM_NO_ACTION, 0}},   /* app close */
+      {{BTA_DM_PM_SNIFF3, 7000},   {BTA_DM_PM_NO_ACTION, 0}},   /* sco open, active */
+      {{BTA_DM_PM_SNIFF,  7000},   {BTA_DM_PM_NO_ACTION, 0}},   /* sco close sniff  */
+      {{BTA_DM_PM_SNIFF,  7000},   {BTA_DM_PM_NO_ACTION, 0}},   /* idle */
+      {{BTA_DM_PM_ACTIVE,    0},   {BTA_DM_PM_NO_ACTION, 0}},   /* busy */
+      {{BTA_DM_PM_RETRY,  7000},   {BTA_DM_PM_NO_ACTION, 0}}    /* mode change retry */
+  }
+ },
+
+  /* AVK : 12 */
+ {
+  (BTA_DM_PM_SNIFF),                                             /* allow sniff */
+#if (BTM_SSR_INCLUDED == TRUE)
+  (BTA_DM_PM_SSR2),                                              /* the SSR entry */
+#endif
+  {
+      {{BTA_DM_PM_SNIFF,  3000},   {BTA_DM_PM_NO_ACTION, 0}},    /* conn open  sniff */
+      {{BTA_DM_PM_NO_PREF,   0},   {BTA_DM_PM_NO_ACTION, 0}},    /* conn close  */
+      {{BTA_DM_PM_NO_ACTION, 0},   {BTA_DM_PM_NO_ACTION, 0}},    /* app open */
+      {{BTA_DM_PM_NO_ACTION, 0},   {BTA_DM_PM_NO_ACTION, 0}},    /* app close */
+      {{BTA_DM_PM_NO_ACTION, 0},   {BTA_DM_PM_NO_ACTION, 0}},    /* sco open  */
+      {{BTA_DM_PM_NO_ACTION, 0},   {BTA_DM_PM_NO_ACTION, 0}},    /* sco close   */
+      {{BTA_DM_PM_SNIFF4, 3000},   {BTA_DM_PM_NO_ACTION, 0}},    /* idle */
+      {{BTA_DM_PM_ACTIVE,    0},   {BTA_DM_PM_NO_ACTION, 0}},    /* busy */
+      {{BTA_DM_PM_NO_ACTION, 0},   {BTA_DM_PM_NO_ACTION, 0}}     /* mode change retry */
+  }
+ }
+
+#if BLE_INCLUDED == TRUE
+    /* GATTC : 13 */
+ ,{
+  (BTA_DM_PM_SNIFF | BTA_DM_PM_PARK),                           /* allow park & sniff */
+#if (BTM_SSR_INCLUDED == TRUE)
+  (BTA_DM_PM_SSR2),                                              /* the SSR entry */
+#endif
+  {
+      {{BTA_DM_PM_SNIFF_A2DP_IDX, 10000}, {BTA_DM_PM_NO_ACTION, 0}}, /* conn open  active */
+      {{BTA_DM_PM_NO_PREF,    0},   {BTA_DM_PM_NO_ACTION, 0}},    /* conn close  */
+      {{BTA_DM_PM_ACTIVE,     0},   {BTA_DM_PM_NO_ACTION, 0}},    /* app open */
+      {{BTA_DM_PM_NO_ACTION,  0},   {BTA_DM_PM_NO_ACTION, 0}},    /* app close */
+      {{BTA_DM_PM_NO_ACTION,  0},   {BTA_DM_PM_NO_ACTION, 0}},    /* sco open  */
+      {{BTA_DM_PM_NO_ACTION,  0},   {BTA_DM_PM_NO_ACTION, 0}},    /* sco close   */
+      {{BTA_DM_PM_SNIFF_A2DP_IDX, 10000}, {BTA_DM_PM_NO_ACTION, 0}}, /* idle */
+      {{BTA_DM_PM_ACTIVE,     0},   {BTA_DM_PM_NO_ACTION, 0}},    /* busy */
+#if (AMP_INCLUDED == TRUE)
+      {{BTA_DM_PM_NO_ACTION,  0},   {BTA_DM_PM_NO_ACTION, 0}},   /* amp */
+#endif
+      {{BTA_DM_PM_RETRY,   5000},   {BTA_DM_PM_NO_ACTION, 0}}    /* mode change retry */
+  }
+ }
+    /* GATTS : 14 */
+ ,{
+  (BTA_DM_PM_SNIFF | BTA_DM_PM_PARK),                           /* allow park & sniff */
+#if (BTM_SSR_INCLUDED == TRUE)
+  (BTA_DM_PM_SSR2),                                              /* the SSR entry */
+#endif
+  {
+      {{BTA_DM_PM_NO_PREF,   0},   {BTA_DM_PM_NO_ACTION, 0}},    /* conn open  active */
+      {{BTA_DM_PM_NO_PREF,   0},   {BTA_DM_PM_NO_ACTION, 0}},    /* conn close  */
+      {{BTA_DM_PM_NO_PREF,   0},   {BTA_DM_PM_NO_ACTION, 0}},    /* app open */
+      {{BTA_DM_PM_NO_PREF,   0},   {BTA_DM_PM_NO_ACTION, 0}},    /* app close */
+      {{BTA_DM_PM_NO_PREF,   0},   {BTA_DM_PM_NO_ACTION, 0}},    /* sco open  */
+      {{BTA_DM_PM_NO_PREF,   0},   {BTA_DM_PM_NO_ACTION, 0}},    /* sco close   */
+      {{BTA_DM_PM_NO_PREF,   0},   {BTA_DM_PM_NO_ACTION, 0}},    /* idle */
+      {{BTA_DM_PM_NO_PREF,   0},   {BTA_DM_PM_NO_ACTION, 0}},    /* busy */
+#if (AMP_INCLUDED == TRUE)
+      {{BTA_DM_PM_NO_PREF, 0},   {BTA_DM_PM_NO_ACTION, 0}},   /* amp */
+#endif
+      {{BTA_DM_PM_RETRY,  5000},   {BTA_DM_PM_NO_ACTION, 0}}    /* mode change retry */
+  }
+ }
+
+#endif
+
+#ifdef BTE_SIM_APP      /* For Insight builds only */
+ /* Entries at the end of the pm_spec table are user-defined (runtime configurable),
+    for power consumption experiments.
+    Insight finds the first user-defined entry by looking for the first BTA_DM_PM_NO_PREF.
+    The number of user_defined specs is defined by BTA_SWRAP_UD_PM_SPEC_COUNT */
+ ,
+ {BTA_DM_PM_NO_PREF},               /* pm_spec USER_DEFINED_0 */
+ {BTA_DM_PM_NO_PREF}                /* pm_spec USER_DEFINED_1 */
+#endif  /* BTE_SIM_APP */
+};
+
+/* Please refer to the SNIFF table definitions in bta_api.h.
+ *
+ * Adding to or Modifying the Table
+ * Additional sniff parameter entries can be added for BTA_DM_PM_SNIFF5 - BTA_DM_PM_SNIFF7.
+ * Overrides of additional table entries can be specified in bdroid_buildcfg.h.  If additional
+ * sniff parameter entries are added or an override of an existing entry is specified in
+ * bdroid_buildcfg.h then the BTA_DM_PM_*_IDX defines in bta_api.h will need to be match the new
+ * ordering.
+ *
+ * Table Ordering
+ * Sniff Table entries must be ordered from highest latency (biggest interval) to lowest latency.
+ * If there is a conflict among the connected services the setting with the lowest latency will
+ * be selected.
+ */
+tBTA_DM_PM_TYPE_QUALIFIER tBTM_PM_PWR_MD bta_dm_pm_md[] =
+{
+/*
+ * More sniff parameter entries can be added for
+ * BTA_DM_PM_SNIFF3 - BTA_DM_PM_SNIFF7, if needed. When entries are added or
+ * removed, BTA_DM_PM_PARK_IDX needs to be updated to reflect the actual index
+ * BTA_DM_PM_PARK_IDX is defined in bta_api.h and can be override by the
+ * bdroid_buildcfg.h settings.
+ * The SNIFF table entries must be in the order from highest latency (biggest
+ * interval) to lowest latency. If there's a conflict among the connected
+ * services, the setting with lowest latency wins.
+ */
+/* sniff modes: max interval, min interval, attempt, timeout */
+  {BTA_DM_PM_SNIFF_MAX, BTA_DM_PM_SNIFF_MIN, BTA_DM_PM_SNIFF_ATTEMPT, BTA_DM_PM_SNIFF_TIMEOUT, BTM_PM_MD_SNIFF}, /* for BTA_DM_PM_SNIFF - A2DP */
+  {BTA_DM_PM_SNIFF1_MAX, BTA_DM_PM_SNIFF1_MIN, BTA_DM_PM_SNIFF1_ATTEMPT, BTA_DM_PM_SNIFF1_TIMEOUT, BTM_PM_MD_SNIFF}, /* for BTA_DM_PM_SNIFF1 */
+  {BTA_DM_PM_SNIFF2_MAX, BTA_DM_PM_SNIFF2_MIN, BTA_DM_PM_SNIFF2_ATTEMPT, BTA_DM_PM_SNIFF2_TIMEOUT, BTM_PM_MD_SNIFF}, /* for BTA_DM_PM_SNIFF2- HD idle */
+  {BTA_DM_PM_SNIFF3_MAX, BTA_DM_PM_SNIFF3_MIN, BTA_DM_PM_SNIFF3_ATTEMPT, BTA_DM_PM_SNIFF3_TIMEOUT, BTM_PM_MD_SNIFF}, /* for BTA_DM_PM_SNIFF3- SCO open */
+  {BTA_DM_PM_SNIFF4_MAX, BTA_DM_PM_SNIFF4_MIN, BTA_DM_PM_SNIFF4_ATTEMPT, BTA_DM_PM_SNIFF4_TIMEOUT, BTM_PM_MD_SNIFF}, /* for BTA_DM_PM_SNIFF4- HD active */
+  {BTA_DM_PM_SNIFF5_MAX, BTA_DM_PM_SNIFF5_MIN, BTA_DM_PM_SNIFF5_ATTEMPT, BTA_DM_PM_SNIFF5_TIMEOUT, BTM_PM_MD_SNIFF}, /* for BTA_DM_PM_SNIFF5- HD active */
+  {BTA_DM_PM_PARK_MAX, BTA_DM_PM_PARK_MIN, BTA_DM_PM_PARK_ATTEMPT, BTA_DM_PM_PARK_TIMEOUT, BTM_PM_MD_PARK}
+
+#ifdef BTE_SIM_APP      /* For Insight builds only */
+  /* Entries at the end of the bta_dm_pm_md table are user-defined (runtime configurable),
+     for power consumption experiments.
+     Insight finds the first user-defined entry by looking for the first 'max=0'.
+     The number of user_defined specs is defined by BTA_SWRAP_UD_PM_DM_COUNT */
+  ,
+  {0},           /* CONN_OPEN/SCO_CLOSE power mode settings for pm_spec USER_DEFINED_0 */
+  {0},           /* SCO_OPEN power mode settings for pm_spec USER_DEFINED_0 */
+
+  {0},           /* CONN_OPEN/SCO_CLOSE power mode settings for pm_spec USER_DEFINED_1 */
+  {0}            /* SCO_OPEN power mode settings for pm_spec USER_DEFINED_1 */
+#endif  /* BTE_SIM_APP */
+};
+
+/* 0=max_lat -> no SSR */
+/* the smaller of the SSR max latency wins.
+ * the entries in this table must be from highest latency (biggest interval) to lowest latency */
+#if (BTM_SSR_INCLUDED == TRUE)
+tBTA_DM_SSR_SPEC bta_dm_ssr_spec[] =
+{
+    /*max_lat, min_rmt_to, min_loc_to*/
+    {0,      0, 0},     /* BTA_DM_PM_SSR0 - do not use SSR */
+    {0,      0, 2},     /* BTA_DM_PM_SSR1 - HH, can NOT share entry with any other profile,
+                           seting default max latency and min remote timeout as 0,
+                           and always read individual device preference from HH module */
+    {1200,   2, 2},     /* BTA_DM_PM_SSR2 - others (as long as sniff is allowed)*/
+    {360,  160, 2}      /* BTA_DM_PM_SSR3 - HD */
+};
+
+tBTA_DM_SSR_SPEC *p_bta_dm_ssr_spec = (tBTA_DM_SSR_SPEC *)&bta_dm_ssr_spec;
+#endif
+
+tBTA_DM_PM_CFG *p_bta_dm_pm_cfg = (tBTA_DM_PM_CFG *)&bta_dm_pm_cfg;
+tBTA_DM_PM_SPEC *p_bta_dm_pm_spec = (tBTA_DM_PM_SPEC *)&bta_dm_pm_spec;
+tBTM_PM_PWR_MD *p_bta_dm_pm_md = (tBTM_PM_PWR_MD *)&bta_dm_pm_md;
+
+/* The performance impact of EIR packet size
+**
+** When BTM_EIR_DEFAULT_FEC_REQUIRED is TRUE,
+** 1 to 17 bytes,    DM1 is used and most robust.
+** 18 to 121 bytes,  DM3 is used but impacts inquiry scan time with large number
+**                    of devices.(almost double with 150 users)
+** 122 to 224 bytes, DM5 is used but cause quite big performance loss even with
+**                    small number of users. so it is not recommended.
+** 225 to 240 bytes, DH5 is used without FEC but it not recommended.
+**                    (same reason of DM5)
+**
+** When BTM_EIR_DEFAULT_FEC_REQUIRED is FALSE,
+** 1 to 27 bytes,    DH1 is used but only robust at short range.
+** 28 to 183 bytes,  DH3 is used but only robust at short range and impacts inquiry
+**                    scan time with large number of devices.
+** 184 to 240 bytes, DH5 is used but it not recommended.
+*/
+
+#if (BTA_EIR_CANNED_UUID_LIST == TRUE)
+                                            /* for example */
+const UINT8 bta_dm_eir_uuid16_list[] = {    0x08, 0x11, /* Headset */
+                                            0x1E, 0x11, /* Handsfree */
+                                            0x0E, 0x11, /* AV Remote Control */
+                                            0x0B, 0x11, /* Audio Sink */
+};
+#endif  // BTA_EIR_CANNED_UUID_LIST
+
+/* Extended Inquiry Response */
+const tBTA_DM_EIR_CONF bta_dm_eir_cfg =
+{
+    50,    /* minimum length of local name when it is shortened */
+           /* if length of local name is longer than this and EIR has not enough */
+           /* room for all UUID list then local name is shortened to this length */
+#if (BTA_EIR_CANNED_UUID_LIST == TRUE)
+    8,
+    (UINT8 *)bta_dm_eir_uuid16_list,
+#else // BTA_EIR_CANNED_UUID_LIST
+    {   /* mask of UUID list in EIR */
+        0xFFFFFFFF, /* LSB is the first UUID of the first 32 UUIDs in BTM_EIR_UUID_LKUP_TBL */
+        0xFFFFFFFF  /* LSB is the first UUID of the next 32 UUIDs in BTM_EIR_UUID_LKUP_TBL */
+        /* BTM_EIR_UUID_LKUP_TBL can be overrided */
+    },
+#endif  // BTA_EIR_CANNED_UUID_LIST
+    NULL,   /* Inquiry TX power         */
+    0,      /* length of flags in bytes */
+    NULL,   /* flags for EIR */
+    0,      /* length of manufacturer specific in bytes */
+    NULL,   /* manufacturer specific */
+    0,      /* length of additional data in bytes */
+    NULL    /* additional data */
+};
+tBTA_DM_EIR_CONF *p_bta_dm_eir_cfg = (tBTA_DM_EIR_CONF*)&bta_dm_eir_cfg;
diff --git a/rtkbt/code/bt/bta/dm/bta_dm_ci.c b/rtkbt/code/bt/bta/dm/bta_dm_ci.c
new file mode 100755
index 0000000..04a9328
--- /dev/null
+++ b/rtkbt/code/bt/bta/dm/bta_dm_ci.c
@@ -0,0 +1,110 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the API implementation file for the BTA device manager.
+ *
+ ******************************************************************************/
+
+#include "bt_common.h"
+#include "bta_sys.h"
+#include "bta_api.h"
+#include "bta_dm_int.h"
+#include <string.h>
+#include "bta_dm_ci.h"
+
+
+/*******************************************************************************
+**
+** Function         bta_dm_ci_io_req
+**
+** Description      This function must be called in response to function
+**                  bta_dm_co_io_req(), if *p_oob_data to BTA_OOB_UNKNOWN
+**                  by bta_dm_co_io_req().
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_dm_ci_io_req(BD_ADDR bd_addr, tBTA_IO_CAP io_cap, tBTA_OOB_DATA oob_data,
+                                     tBTA_AUTH_REQ auth_req)
+
+{
+    tBTA_DM_CI_IO_REQ *p_msg =
+        (tBTA_DM_CI_IO_REQ *)osi_malloc(sizeof(tBTA_DM_CI_IO_REQ));
+
+    p_msg->hdr.event = BTA_DM_CI_IO_REQ_EVT;
+    bdcpy(p_msg->bd_addr, bd_addr);
+    p_msg->io_cap = io_cap;
+    p_msg->oob_data = oob_data;
+    p_msg->auth_req = auth_req;
+
+    bta_sys_sendmsg(p_msg);
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_ci_rmt_oob
+**
+** Description      This function must be called in response to function
+**                  bta_dm_co_rmt_oob() to provide the OOB data associated
+**                  with the remote device.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_dm_ci_rmt_oob(BOOLEAN accept, BD_ADDR bd_addr, BT_OCTET16 c, BT_OCTET16 r)
+{
+    tBTA_DM_CI_RMT_OOB *p_msg =
+        (tBTA_DM_CI_RMT_OOB *)osi_malloc(sizeof(tBTA_DM_CI_RMT_OOB));
+
+    p_msg->hdr.event = BTA_DM_CI_RMT_OOB_EVT;
+    bdcpy(p_msg->bd_addr, bd_addr);
+    p_msg->accept = accept;
+    memcpy(p_msg->c, c, BT_OCTET16_LEN);
+    memcpy(p_msg->r, r, BT_OCTET16_LEN);
+
+    bta_sys_sendmsg(p_msg);
+}
+
+#if (BTM_SCO_HCI_INCLUDED == TRUE)
+/*******************************************************************************
+**
+** Function         bta_dm_sco_ci_data_ready
+**
+** Description      This function sends an event to indicating that the phone
+**                  has SCO data ready.
+**
+** Parameters       event: is obtained from bta_dm_sco_co_open() function, which
+**                          is the BTA event we want to send back to BTA module
+**                          when there is encoded data ready.
+**                  sco_handle: is the BTA sco handle which indicate a specific
+**                           SCO connection.
+** Returns          void
+**
+*******************************************************************************/
+void bta_dm_sco_ci_data_ready(UINT16 event, UINT16 sco_handle)
+{
+    BT_HDR *p_buf = (BT_HDR *)osi_malloc(sizeof(BT_HDR));
+
+    p_buf->event = event;
+    p_buf->layer_specific = sco_handle;
+
+    bta_sys_sendmsg(p_buf);
+}
+#endif
diff --git a/rtkbt/code/bt/bta/dm/bta_dm_int.h b/rtkbt/code/bt/bta/dm/bta_dm_int.h
new file mode 100755
index 0000000..3a1f3a3
--- /dev/null
+++ b/rtkbt/code/bt/bta/dm/bta_dm_int.h
@@ -0,0 +1,1210 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the private interface file for the BTA device manager.
+ *
+ ******************************************************************************/
+#ifndef BTA_DM_INT_H
+#define BTA_DM_INT_H
+
+#include "bt_target.h"
+
+#if (BLE_INCLUDED == TRUE && (defined BTA_GATT_INCLUDED) && (BTA_GATT_INCLUDED == TRUE))
+    #include "bta_gatt_api.h"
+#endif
+
+
+
+/*****************************************************************************
+**  Constants and data types
+*****************************************************************************/
+
+
+#define BTA_COPY_DEVICE_CLASS(coddst, codsrc)   {((UINT8 *)(coddst))[0] = ((UINT8 *)(codsrc))[0]; \
+                                                 ((UINT8 *)(coddst))[1] = ((UINT8 *)(codsrc))[1];  \
+                                                 ((UINT8 *)(coddst))[2] = ((UINT8 *)(codsrc))[2];}
+
+
+#define BTA_DM_MSG_LEN 50
+
+#define BTA_SERVICE_ID_TO_SERVICE_MASK(id)       (1 << (id))
+
+/* DM events */
+enum
+{
+    /* device manager local device API events */
+    BTA_DM_API_ENABLE_EVT = BTA_SYS_EVT_START(BTA_ID_DM),
+    BTA_DM_API_DISABLE_EVT,
+    BTA_DM_API_SET_NAME_EVT,
+    BTA_DM_API_SET_VISIBILITY_EVT,
+
+    BTA_DM_ACL_CHANGE_EVT,
+    BTA_DM_API_ADD_DEVICE_EVT,
+    BTA_DM_API_REMOVE_ACL_EVT,
+
+    /* security API events */
+    BTA_DM_API_BOND_EVT,
+    BTA_DM_API_BOND_CANCEL_EVT,
+    BTA_DM_API_PIN_REPLY_EVT,
+
+    /* power manger events */
+    BTA_DM_PM_BTM_STATUS_EVT,
+    BTA_DM_PM_TIMER_EVT,
+
+    /* simple pairing events */
+    BTA_DM_API_CONFIRM_EVT,
+
+    BTA_DM_API_SET_ENCRYPTION_EVT,
+
+    BTA_DM_API_LOC_OOB_EVT,
+    BTA_DM_CI_IO_REQ_EVT,
+    BTA_DM_CI_RMT_OOB_EVT,
+
+
+#if BLE_INCLUDED == TRUE
+    BTA_DM_API_ADD_BLEKEY_EVT,
+    BTA_DM_API_ADD_BLEDEVICE_EVT,
+    BTA_DM_API_BLE_PASSKEY_REPLY_EVT,
+    BTA_DM_API_BLE_CONFIRM_REPLY_EVT,
+    BTA_DM_API_BLE_SEC_GRANT_EVT,
+    BTA_DM_API_BLE_SET_BG_CONN_TYPE,
+    BTA_DM_API_BLE_CONN_PARAM_EVT,
+    BTA_DM_API_BLE_CONN_SCAN_PARAM_EVT,
+    BTA_DM_API_BLE_SCAN_PARAM_EVT,
+    BTA_DM_API_BLE_OBSERVE_EVT,
+    BTA_DM_API_UPDATE_CONN_PARAM_EVT,
+#if BLE_PRIVACY_SPT == TRUE
+    BTA_DM_API_LOCAL_PRIVACY_EVT,
+#endif
+    BTA_DM_API_BLE_ADV_PARAM_EVT,
+    BTA_DM_API_BLE_SET_ADV_CONFIG_EVT,
+    BTA_DM_API_BLE_SET_SCAN_RSP_EVT,
+    BTA_DM_API_BLE_BROADCAST_EVT,
+    BTA_DM_API_SET_DATA_LENGTH_EVT,
+
+#if BLE_ANDROID_CONTROLLER_SCAN_FILTER == TRUE
+    BTA_DM_API_CFG_FILTER_COND_EVT,
+    BTA_DM_API_SCAN_FILTER_SETUP_EVT,
+    BTA_DM_API_SCAN_FILTER_ENABLE_EVT,
+#endif
+    BTA_DM_API_BLE_MULTI_ADV_ENB_EVT,
+    BTA_DM_API_BLE_MULTI_ADV_PARAM_UPD_EVT,
+    BTA_DM_API_BLE_MULTI_ADV_DATA_EVT,
+    BTA_DM_API_BLE_MULTI_ADV_DISABLE_EVT,
+    BTA_DM_API_BLE_SETUP_STORAGE_EVT,
+    BTA_DM_API_BLE_ENABLE_BATCH_SCAN_EVT,
+    BTA_DM_API_BLE_DISABLE_BATCH_SCAN_EVT,
+    BTA_DM_API_BLE_READ_SCAN_REPORTS_EVT,
+    BTA_DM_API_BLE_TRACK_ADVERTISER_EVT,
+    BTA_DM_API_BLE_ENERGY_INFO_EVT,
+
+#endif
+
+    BTA_DM_API_ENABLE_TEST_MODE_EVT,
+    BTA_DM_API_DISABLE_TEST_MODE_EVT,
+    BTA_DM_API_EXECUTE_CBACK_EVT,
+    BTA_DM_API_REMOVE_ALL_ACL_EVT,
+    BTA_DM_API_REMOVE_DEVICE_EVT,
+#ifdef BLUETOOTH_RTK
+    BTA_DM_API_ADD_BLEDEVICEEXTRAINFO_EVT,
+#endif
+    BTA_DM_MAX_EVT
+};
+
+
+/* DM search events */
+enum
+{
+    /* DM search API events */
+    BTA_DM_API_SEARCH_EVT = BTA_SYS_EVT_START(BTA_ID_DM_SEARCH),
+    BTA_DM_API_SEARCH_CANCEL_EVT,
+    BTA_DM_API_DISCOVER_EVT,
+    BTA_DM_INQUIRY_CMPL_EVT,
+    BTA_DM_REMT_NAME_EVT,
+    BTA_DM_SDP_RESULT_EVT,
+    BTA_DM_SEARCH_CMPL_EVT,
+    BTA_DM_DISCOVERY_RESULT_EVT,
+    BTA_DM_API_DI_DISCOVER_EVT,
+    BTA_DM_DISC_CLOSE_TOUT_EVT
+
+};
+
+/* data type for BTA_DM_API_ENABLE_EVT */
+typedef struct
+{
+    BT_HDR              hdr;
+    tBTA_DM_SEC_CBACK *p_sec_cback;
+} tBTA_DM_API_ENABLE;
+
+/* data type for BTA_DM_API_SET_NAME_EVT */
+typedef struct
+{
+    BT_HDR              hdr;
+    BD_NAME             name; /* max 248 bytes name, plus must be Null terminated */
+} tBTA_DM_API_SET_NAME;
+
+/* data type for BTA_DM_API_SET_VISIBILITY_EVT */
+typedef struct
+{
+    BT_HDR              hdr;
+    tBTA_DM_DISC    disc_mode;
+    tBTA_DM_CONN    conn_mode;
+    UINT8           pair_mode;
+    UINT8           conn_paired_only;
+} tBTA_DM_API_SET_VISIBILITY;
+
+enum
+{
+    BTA_DM_RS_NONE,     /* straight API call */
+    BTA_DM_RS_OK,       /* the role switch result - successful */
+    BTA_DM_RS_FAIL      /* the role switch result - failed */
+};
+typedef UINT8 tBTA_DM_RS_RES;
+
+/* data type for BTA_DM_API_SEARCH_EVT */
+typedef struct
+{
+    BT_HDR      hdr;
+    tBTA_DM_INQ inq_params;
+    tBTA_SERVICE_MASK services;
+    tBTA_DM_SEARCH_CBACK * p_cback;
+    tBTA_DM_RS_RES  rs_res;
+#if BLE_INCLUDED == TRUE && BTA_GATT_INCLUDED == TRUE
+    UINT8           num_uuid;
+    tBT_UUID        *p_uuid;
+#endif
+} tBTA_DM_API_SEARCH;
+
+/* data type for BTA_DM_API_DISCOVER_EVT */
+typedef struct
+{
+    BT_HDR      hdr;
+    BD_ADDR bd_addr;
+    tBTA_SERVICE_MASK services;
+    tBTA_DM_SEARCH_CBACK * p_cback;
+    BOOLEAN         sdp_search;
+    tBTA_TRANSPORT  transport;
+#if BLE_INCLUDED == TRUE && BTA_GATT_INCLUDED == TRUE
+    UINT8           num_uuid;
+    tBT_UUID        *p_uuid;
+#endif
+    tSDP_UUID    uuid;
+} tBTA_DM_API_DISCOVER;
+
+/* data type for BTA_DM_API_DI_DISC_EVT */
+typedef struct
+{
+    BT_HDR              hdr;
+    BD_ADDR             bd_addr;
+    tBTA_DISCOVERY_DB   *p_sdp_db;
+    UINT32              len;
+    tBTA_DM_SEARCH_CBACK * p_cback;
+}tBTA_DM_API_DI_DISC;
+
+/* data type for BTA_DM_API_BOND_EVT */
+typedef struct
+{
+    BT_HDR      hdr;
+    BD_ADDR bd_addr;
+    tBTA_TRANSPORT transport;
+} tBTA_DM_API_BOND;
+
+/* data type for BTA_DM_API_BOND_CANCEL_EVT */
+typedef struct
+{
+    BT_HDR          hdr;
+    BD_ADDR         bd_addr;
+    tBTA_TRANSPORT  transport;
+} tBTA_DM_API_BOND_CANCEL;
+
+/* data type for BTA_DM_API_PIN_REPLY_EVT */
+typedef struct
+{
+    BT_HDR      hdr;
+    BD_ADDR bd_addr;
+    BOOLEAN accept;
+    UINT8 pin_len;
+    UINT8 p_pin[PIN_CODE_LEN];
+} tBTA_DM_API_PIN_REPLY;
+
+/* data type for BTA_DM_API_LOC_OOB_EVT */
+typedef struct
+{
+    BT_HDR      hdr;
+} tBTA_DM_API_LOC_OOB;
+
+/* data type for BTA_DM_API_CONFIRM_EVT */
+typedef struct
+{
+    BT_HDR      hdr;
+    BD_ADDR     bd_addr;
+    BOOLEAN     accept;
+} tBTA_DM_API_CONFIRM;
+
+/* data type for BTA_DM_CI_IO_REQ_EVT */
+typedef struct
+{
+    BT_HDR          hdr;
+    BD_ADDR         bd_addr;
+    tBTA_IO_CAP     io_cap;
+    tBTA_OOB_DATA   oob_data;
+    tBTA_AUTH_REQ   auth_req;
+} tBTA_DM_CI_IO_REQ;
+
+/* data type for BTA_DM_CI_RMT_OOB_EVT */
+typedef struct
+{
+    BT_HDR      hdr;
+    BD_ADDR     bd_addr;
+    BT_OCTET16  c;
+    BT_OCTET16  r;
+    BOOLEAN     accept;
+} tBTA_DM_CI_RMT_OOB;
+
+/* data type for BTA_DM_REMT_NAME_EVT */
+typedef struct
+{
+    BT_HDR      hdr;
+    tBTA_DM_SEARCH  result;
+} tBTA_DM_REM_NAME;
+
+/* data type for tBTA_DM_DISC_RESULT */
+typedef struct
+{
+    BT_HDR      hdr;
+    tBTA_DM_SEARCH  result;
+} tBTA_DM_DISC_RESULT;
+
+
+/* data type for BTA_DM_INQUIRY_CMPL_EVT */
+typedef struct
+{
+    BT_HDR      hdr;
+    UINT8       num;
+} tBTA_DM_INQUIRY_CMPL;
+
+/* data type for BTA_DM_SDP_RESULT_EVT */
+typedef struct
+{
+    BT_HDR      hdr;
+    UINT16 sdp_result;
+} tBTA_DM_SDP_RESULT;
+
+/* data type for BTA_DM_ACL_CHANGE_EVT */
+typedef struct
+{
+    BT_HDR          hdr;
+    tBTM_BL_EVENT   event;
+    UINT8           busy_level;
+    UINT8           busy_level_flags;
+    BOOLEAN         is_new;
+    UINT8           new_role;
+    BD_ADDR         bd_addr;
+    UINT8           hci_status;
+#if BLE_INCLUDED == TRUE
+    UINT16          handle;
+    tBT_TRANSPORT   transport;
+#endif
+} tBTA_DM_ACL_CHANGE;
+
+/* data type for BTA_DM_PM_BTM_STATUS_EVT */
+typedef struct
+{
+
+    BT_HDR          hdr;
+    BD_ADDR         bd_addr;
+    tBTM_PM_STATUS  status;
+    UINT16          value;
+    UINT8           hci_status;
+
+} tBTA_DM_PM_BTM_STATUS;
+
+/* data type for BTA_DM_PM_TIMER_EVT */
+typedef struct
+{
+    BT_HDR          hdr;
+    BD_ADDR         bd_addr;
+    tBTA_DM_PM_ACTION  pm_request;
+} tBTA_DM_PM_TIMER;
+
+
+/* data type for BTA_DM_API_ADD_DEVICE_EVT */
+typedef struct
+{
+    BT_HDR              hdr;
+    BD_ADDR             bd_addr;
+    DEV_CLASS           dc;
+    LINK_KEY            link_key;
+    tBTA_SERVICE_MASK   tm;
+    BOOLEAN             is_trusted;
+    UINT8               key_type;
+    tBTA_IO_CAP         io_cap;
+    BOOLEAN             link_key_known;
+    BOOLEAN             dc_known;
+    BD_NAME             bd_name;
+    UINT8               features[BTA_FEATURE_BYTES_PER_PAGE * (BTA_EXT_FEATURES_PAGE_MAX + 1)];
+    UINT8               pin_length;
+} tBTA_DM_API_ADD_DEVICE;
+
+/* data type for BTA_DM_API_REMOVE_ACL_EVT */
+typedef struct
+{
+    BT_HDR              hdr;
+    BD_ADDR             bd_addr;
+} tBTA_DM_API_REMOVE_DEVICE;
+
+/* data type for BTA_DM_API_EXECUTE_CBACK_EVT */
+typedef struct
+{
+    BT_HDR               hdr;
+    void *               p_param;
+    tBTA_DM_EXEC_CBACK  *p_exec_cback;
+} tBTA_DM_API_EXECUTE_CBACK;
+
+/* data type for tBTA_DM_API_SET_ENCRYPTION */
+typedef struct
+{
+    BT_HDR                    hdr;
+    tBTA_TRANSPORT            transport;
+    tBTA_DM_ENCRYPT_CBACK     *p_callback;
+    tBTA_DM_BLE_SEC_ACT       sec_act;
+    BD_ADDR                   bd_addr;
+} tBTA_DM_API_SET_ENCRYPTION;
+
+#if BLE_INCLUDED == TRUE
+typedef struct
+{
+    BT_HDR                  hdr;
+    BD_ADDR                 bd_addr;
+    tBTA_LE_KEY_VALUE       blekey;
+    tBTA_LE_KEY_TYPE        key_type;
+
+}tBTA_DM_API_ADD_BLEKEY;
+
+typedef struct
+{
+    BT_HDR                  hdr;
+    BD_ADDR                 bd_addr;
+    tBT_DEVICE_TYPE         dev_type ;
+    tBLE_ADDR_TYPE          addr_type;
+
+}tBTA_DM_API_ADD_BLE_DEVICE;
+
+#ifdef BLUETOOTH_RTK
+typedef struct
+{
+    BT_HDR                  hdr;
+    BD_ADDR                 bd_addr;
+    DEV_CLASS               dev_class;
+    BD_NAME                 bd_name;
+
+}tBTA_DM_API_ADD_BLE_DEVICE_EXTRA_INFO;
+#endif
+
+typedef struct
+{
+    BT_HDR                  hdr;
+    BD_ADDR                 bd_addr;
+    BOOLEAN                 accept;
+    UINT32                  passkey;
+}tBTA_DM_API_PASSKEY_REPLY;
+
+typedef struct
+{
+    BT_HDR                  hdr;
+    BD_ADDR                 bd_addr;
+    tBTA_DM_BLE_SEC_GRANT   res;
+}tBTA_DM_API_BLE_SEC_GRANT;
+
+
+typedef struct
+{
+    BT_HDR                  hdr;
+    tBTA_DM_BLE_CONN_TYPE   bg_conn_type;
+    tBTA_DM_BLE_SEL_CBACK   *p_select_cback;
+}tBTA_DM_API_BLE_SET_BG_CONN_TYPE;
+
+/* set prefered BLE connection parameters for a device */
+typedef struct
+{
+    BT_HDR                  hdr;
+    BD_ADDR                 peer_bda;
+    UINT16                  conn_int_min;
+    UINT16                  conn_int_max;
+    UINT16                  supervision_tout;
+    UINT16                  slave_latency;
+
+}tBTA_DM_API_BLE_CONN_PARAMS;
+
+typedef struct
+{
+    BT_HDR                  hdr;
+    BD_ADDR                 peer_bda;
+    BOOLEAN                 privacy_enable;
+
+}tBTA_DM_API_ENABLE_PRIVACY;
+
+typedef struct
+{
+    BT_HDR                  hdr;
+    BOOLEAN                 privacy_enable;
+}tBTA_DM_API_LOCAL_PRIVACY;
+
+/* set scan parameter for BLE connections */
+typedef struct
+{
+    BT_HDR hdr;
+    tBTA_GATTC_IF client_if;
+    UINT32 scan_int;
+    UINT32 scan_window;
+    tBLE_SCAN_MODE scan_mode;
+    tBLE_SCAN_PARAM_SETUP_CBACK scan_param_setup_cback;
+}tBTA_DM_API_BLE_SCAN_PARAMS;
+
+/* set scan parameter for BLE connections */
+typedef struct
+{
+    BT_HDR                  hdr;
+    UINT16                  scan_int;
+    UINT16                  scan_window;
+} tBTA_DM_API_BLE_CONN_SCAN_PARAMS;
+
+/* Data type for start/stop observe */
+typedef struct
+{
+    BT_HDR                  hdr;
+    BOOLEAN                 start;
+    UINT16                  duration;
+    tBTA_DM_SEARCH_CBACK * p_cback;
+}tBTA_DM_API_BLE_OBSERVE;
+
+typedef struct
+{
+    BT_HDR      hdr;
+    BD_ADDR     remote_bda;
+    UINT16      tx_data_length;
+}tBTA_DM_API_BLE_SET_DATA_LENGTH;
+
+/* set adv parameter for BLE advertising */
+typedef struct
+{
+    BT_HDR                  hdr;
+    UINT16                  adv_int_min;
+    UINT16                  adv_int_max;
+    tBLE_BD_ADDR            *p_dir_bda;
+}tBTA_DM_API_BLE_ADV_PARAMS;
+
+typedef struct
+{
+    BT_HDR                  hdr;
+    BOOLEAN                 enable;
+
+}tBTA_DM_API_BLE_FEATURE;
+
+/* multi adv data structure */
+typedef struct
+{
+    BT_HDR                      hdr;
+    tBTA_BLE_MULTI_ADV_CBACK    *p_cback;
+    void                        *p_ref;
+    tBTA_BLE_ADV_PARAMS         *p_params;
+}tBTA_DM_API_BLE_MULTI_ADV_ENB;
+
+typedef struct
+{
+    BT_HDR                      hdr;
+    UINT8                        inst_id;
+    tBTA_BLE_ADV_PARAMS         *p_params;
+}tBTA_DM_API_BLE_MULTI_ADV_PARAM;
+
+typedef struct
+{
+    BT_HDR                  hdr;
+    UINT8                   inst_id;
+    BOOLEAN                 is_scan_rsp;
+    tBTA_BLE_AD_MASK        data_mask;
+    tBTA_BLE_ADV_DATA       data;
+}tBTA_DM_API_BLE_MULTI_ADV_DATA;
+
+typedef struct
+{
+    BT_HDR                  hdr;
+    UINT8                   inst_id;
+}tBTA_DM_API_BLE_MULTI_ADV_DISABLE;
+
+typedef struct
+{
+    BT_HDR                  hdr;
+    UINT32                  data_mask;
+    tBTA_BLE_ADV_DATA       adv_cfg;
+    tBTA_SET_ADV_DATA_CMPL_CBACK    *p_adv_data_cback;
+}tBTA_DM_API_SET_ADV_CONFIG;
+
+typedef struct
+{
+    BT_HDR                  hdr;
+    UINT8                   batch_scan_full_max;
+    UINT8                   batch_scan_trunc_max;
+    UINT8                   batch_scan_notify_threshold;
+    tBTA_BLE_SCAN_SETUP_CBACK *p_setup_cback;
+    tBTA_BLE_SCAN_THRESHOLD_CBACK *p_thres_cback;
+    tBTA_BLE_SCAN_REP_CBACK *p_read_rep_cback;
+    tBTA_DM_BLE_REF_VALUE    ref_value;
+} tBTA_DM_API_SET_STORAGE_CONFIG;
+
+typedef struct
+{
+    BT_HDR                  hdr;
+    tBTA_BLE_BATCH_SCAN_MODE  scan_mode;
+    UINT32                  scan_int;
+    UINT32                  scan_window;
+    tBTA_BLE_DISCARD_RULE   discard_rule;
+    tBLE_ADDR_TYPE          addr_type;
+    tBTA_DM_BLE_REF_VALUE   ref_value;
+} tBTA_DM_API_ENABLE_SCAN;
+
+typedef struct
+{
+    BT_HDR                  hdr;
+    tBTA_DM_BLE_REF_VALUE    ref_value;
+} tBTA_DM_API_DISABLE_SCAN;
+
+typedef struct
+{
+    BT_HDR                  hdr;
+    tBTA_BLE_BATCH_SCAN_MODE scan_type;
+    tBTA_DM_BLE_REF_VALUE    ref_value;
+} tBTA_DM_API_READ_SCAN_REPORTS;
+
+typedef struct
+{
+    BT_HDR                  hdr;
+    tBTA_DM_BLE_REF_VALUE ref_value;
+    tBTA_BLE_TRACK_ADV_CBACK *p_track_adv_cback;
+} tBTA_DM_API_TRACK_ADVERTISER;
+
+typedef struct
+{
+    BT_HDR                  hdr;
+    tBTA_BLE_ENERGY_INFO_CBACK *p_energy_info_cback;
+} tBTA_DM_API_ENERGY_INFO;
+
+#endif /* BLE_INCLUDED */
+
+/* data type for BTA_DM_API_REMOVE_ACL_EVT */
+typedef struct
+{
+    BT_HDR      hdr;
+    BD_ADDR     bd_addr;
+    BOOLEAN     remove_dev;
+    tBTA_TRANSPORT transport;
+
+}tBTA_DM_API_REMOVE_ACL;
+
+/* data type for BTA_DM_API_REMOVE_ALL_ACL_EVT */
+typedef struct
+{
+    BT_HDR      hdr;
+    tBTA_DM_LINK_TYPE link_type;
+
+} tBTA_DM_API_REMOVE_ALL_ACL;
+typedef struct
+{
+    BT_HDR      hdr;
+    BD_ADDR     bd_addr;
+    UINT16      min_int;
+    UINT16      max_int;
+    UINT16      latency;
+    UINT16      timeout;
+}tBTA_DM_API_UPDATE_CONN_PARAM;
+
+#if BLE_ANDROID_CONTROLLER_SCAN_FILTER == TRUE
+typedef struct
+{
+    BT_HDR                          hdr;
+    tBTA_DM_BLE_SCAN_COND_OP        action;
+    tBTA_DM_BLE_PF_COND_TYPE        cond_type;
+    tBTA_DM_BLE_PF_FILT_INDEX       filt_index;
+    tBTA_DM_BLE_PF_COND_PARAM       *p_cond_param;
+    tBTA_DM_BLE_PF_CFG_CBACK      *p_filt_cfg_cback;
+    tBTA_DM_BLE_REF_VALUE            ref_value;
+}tBTA_DM_API_CFG_FILTER_COND;
+
+typedef struct
+{
+    BT_HDR                          hdr;
+    UINT8                           action;
+    tBTA_DM_BLE_PF_STATUS_CBACK    *p_filt_status_cback;
+    tBTA_DM_BLE_REF_VALUE            ref_value;
+}tBTA_DM_API_ENABLE_SCAN_FILTER;
+
+typedef struct
+{
+    BT_HDR                          hdr;
+    UINT8                           action;
+    tBTA_DM_BLE_PF_FILT_INDEX       filt_index;
+    tBTA_DM_BLE_PF_FILT_PARAMS      filt_params;
+    tBLE_BD_ADDR                    *p_target;
+    tBTA_DM_BLE_PF_PARAM_CBACK      *p_filt_param_cback;
+    tBTA_DM_BLE_REF_VALUE            ref_value;
+}tBTA_DM_API_SCAN_FILTER_PARAM_SETUP;
+#endif
+
+#ifdef BLUETOOTH_RTK
+/* data type for BTA_DM_API_SET_EIR_CONFIG_EVT */
+typedef struct
+{
+    BT_HDR              hdr;
+    tBTA_DM_EIR_CONF    *p_eir_cfg;
+}tBTA_DM_API_SET_EIR_CONFIG;
+#endif
+
+/* union of all data types */
+typedef union
+{
+    /* GKI event buffer header */
+    BT_HDR              hdr;
+    tBTA_DM_API_ENABLE  enable;
+
+    tBTA_DM_API_SET_NAME set_name;
+
+    tBTA_DM_API_SET_VISIBILITY set_visibility;
+
+    tBTA_DM_API_ADD_DEVICE  add_dev;
+
+    tBTA_DM_API_REMOVE_DEVICE remove_dev;
+
+    tBTA_DM_API_SEARCH search;
+
+    tBTA_DM_API_DISCOVER discover;
+
+    tBTA_DM_API_BOND bond;
+
+    tBTA_DM_API_BOND_CANCEL bond_cancel;
+
+    tBTA_DM_API_PIN_REPLY pin_reply;
+
+    tBTA_DM_API_LOC_OOB     loc_oob;
+    tBTA_DM_API_CONFIRM     confirm;
+    tBTA_DM_CI_IO_REQ       ci_io_req;
+    tBTA_DM_CI_RMT_OOB      ci_rmt_oob;
+
+    tBTA_DM_REM_NAME rem_name;
+
+    tBTA_DM_DISC_RESULT disc_result;
+
+    tBTA_DM_INQUIRY_CMPL inq_cmpl;
+
+    tBTA_DM_SDP_RESULT sdp_event;
+
+    tBTA_DM_ACL_CHANGE  acl_change;
+
+    tBTA_DM_PM_BTM_STATUS pm_status;
+
+    tBTA_DM_PM_TIMER pm_timer;
+
+    tBTA_DM_API_DI_DISC     di_disc;
+
+    tBTA_DM_API_EXECUTE_CBACK exec_cback;
+
+    tBTA_DM_API_SET_ENCRYPTION     set_encryption;
+
+#if BLE_INCLUDED == TRUE
+    tBTA_DM_API_ADD_BLEKEY              add_ble_key;
+    tBTA_DM_API_ADD_BLE_DEVICE          add_ble_device;
+    tBTA_DM_API_PASSKEY_REPLY           ble_passkey_reply;
+    tBTA_DM_API_BLE_SEC_GRANT           ble_sec_grant;
+    tBTA_DM_API_BLE_SET_BG_CONN_TYPE    ble_set_bd_conn_type;
+    tBTA_DM_API_BLE_CONN_PARAMS         ble_set_conn_params;
+    tBTA_DM_API_BLE_CONN_SCAN_PARAMS    ble_set_conn_scan_params;
+    tBTA_DM_API_BLE_SCAN_PARAMS         ble_set_scan_params;
+    tBTA_DM_API_BLE_OBSERVE             ble_observe;
+    tBTA_DM_API_ENABLE_PRIVACY          ble_remote_privacy;
+    tBTA_DM_API_LOCAL_PRIVACY           ble_local_privacy;
+    tBTA_DM_API_BLE_ADV_PARAMS          ble_set_adv_params;
+    tBTA_DM_API_SET_ADV_CONFIG          ble_set_adv_data;
+#if BLE_ANDROID_CONTROLLER_SCAN_FILTER == TRUE
+    tBTA_DM_API_SCAN_FILTER_PARAM_SETUP ble_scan_filt_param_setup;
+    tBTA_DM_API_CFG_FILTER_COND         ble_cfg_filter_cond;
+    tBTA_DM_API_ENABLE_SCAN_FILTER      ble_enable_scan_filt;
+#endif
+    tBTA_DM_API_UPDATE_CONN_PARAM       ble_update_conn_params;
+    tBTA_DM_API_BLE_SET_DATA_LENGTH     ble_set_data_length;
+
+    tBTA_DM_API_BLE_MULTI_ADV_ENB       ble_multi_adv_enb;
+    tBTA_DM_API_BLE_MULTI_ADV_PARAM     ble_multi_adv_param;
+    tBTA_DM_API_BLE_MULTI_ADV_DATA      ble_multi_adv_data;
+    tBTA_DM_API_BLE_MULTI_ADV_DISABLE   ble_multi_adv_disable;
+
+    tBTA_DM_API_SET_STORAGE_CONFIG      ble_set_storage;
+    tBTA_DM_API_ENABLE_SCAN             ble_enable_scan;
+    tBTA_DM_API_READ_SCAN_REPORTS       ble_read_reports;
+    tBTA_DM_API_DISABLE_SCAN            ble_disable_scan;
+    tBTA_DM_API_TRACK_ADVERTISER        ble_track_advert;
+    tBTA_DM_API_ENERGY_INFO             ble_energy_info;
+#endif
+
+    tBTA_DM_API_REMOVE_ACL              remove_acl;
+    tBTA_DM_API_REMOVE_ALL_ACL          remove_all_acl;
+#ifdef BLUETOOTH_RTK
+    tBTA_DM_API_ADD_BLE_DEVICE_EXTRA_INFO add_ble_device_extra_info;
+    tBTA_DM_API_SET_EIR_CONFIG          set_eir_cfg;
+#endif
+} tBTA_DM_MSG;
+
+
+#define BTA_DM_NUM_PEER_DEVICE 7
+
+#define BTA_DM_NOT_CONNECTED  0
+#define BTA_DM_CONNECTED      1
+#define BTA_DM_UNPAIRING      2
+typedef UINT8 tBTA_DM_CONN_STATE;
+
+
+#define BTA_DM_DI_NONE          0x00       /* nothing special */
+#define BTA_DM_DI_USE_SSR       0x10       /* set this bit if ssr is supported for this link */
+#define BTA_DM_DI_AV_ACTIVE     0x20       /* set this bit if AV is active for this link */
+#define BTA_DM_DI_SET_SNIFF     0x01       /* set this bit if call BTM_SetPowerMode(sniff) */
+#define BTA_DM_DI_INT_SNIFF     0x02       /* set this bit if call BTM_SetPowerMode(sniff) & enter sniff mode */
+#define BTA_DM_DI_ACP_SNIFF     0x04       /* set this bit if peer init sniff */
+typedef UINT8 tBTA_DM_DEV_INFO;
+
+/* set power mode request type */
+#define BTA_DM_PM_RESTART       1
+#define BTA_DM_PM_NEW_REQ       2
+#define BTA_DM_PM_EXECUTE       3
+typedef UINT8   tBTA_DM_PM_REQ;
+
+typedef struct
+{
+    BD_ADDR                     peer_bdaddr;
+    UINT16                      link_policy;
+    tBTA_DM_CONN_STATE          conn_state;
+    tBTA_PREF_ROLES             pref_role;
+    BOOLEAN                     in_use;
+    tBTA_DM_DEV_INFO            info;
+    tBTA_DM_ENCRYPT_CBACK      *p_encrypt_cback;
+#if (BTM_SSR_INCLUDED == TRUE)
+    tBTM_PM_STATUS              prev_low;   /* previous low power mode used */
+#endif
+    tBTA_DM_PM_ACTION           pm_mode_attempted;
+    tBTA_DM_PM_ACTION           pm_mode_failed;
+    BOOLEAN                     remove_dev_pending;
+#if BLE_INCLUDED == TRUE
+    UINT16                      conn_handle;
+    tBT_TRANSPORT               transport;
+#endif
+} tBTA_DM_PEER_DEVICE;
+
+
+
+/* structure to store list of
+  active connections */
+typedef struct
+{
+    tBTA_DM_PEER_DEVICE    peer_device[BTA_DM_NUM_PEER_DEVICE];
+    UINT8                  count;
+#if BLE_INCLUDED == TRUE
+    UINT8                  le_count;
+#endif
+} tBTA_DM_ACTIVE_LINK;
+
+
+typedef struct
+{
+    BD_ADDR                 peer_bdaddr;
+    tBTA_SYS_ID             id;
+    UINT8                   app_id;
+    tBTA_SYS_CONN_STATUS    state;
+    BOOLEAN                 new_request;
+
+} tBTA_DM_SRVCS;
+
+#ifndef BTA_DM_NUM_CONN_SRVS
+#define BTA_DM_NUM_CONN_SRVS   10
+#endif
+
+typedef struct
+{
+
+    UINT8 count;
+    tBTA_DM_SRVCS  conn_srvc[BTA_DM_NUM_CONN_SRVS];
+
+}  tBTA_DM_CONNECTED_SRVCS;
+
+typedef struct
+{
+#define BTA_DM_PM_SNIFF_TIMER_IDX   0
+#define BTA_DM_PM_PARK_TIMER_IDX    1
+#define BTA_DM_PM_SUSPEND_TIMER_IDX 2
+#define BTA_DM_PM_MODE_TIMER_MAX    3
+    /*
+     * Keep three different timers for PARK, SNIFF and SUSPEND if TBFC is
+     * supported.
+     */
+    alarm_t *               timer[BTA_DM_PM_MODE_TIMER_MAX];
+
+    UINT8                   srvc_id[BTA_DM_PM_MODE_TIMER_MAX];
+    UINT8                   pm_action[BTA_DM_PM_MODE_TIMER_MAX];
+    UINT8                   active;     /* number of active timer */
+
+    BD_ADDR                 peer_bdaddr;
+    BOOLEAN                 in_use;
+} tBTA_PM_TIMER;
+
+extern tBTA_DM_CONNECTED_SRVCS bta_dm_conn_srvcs;
+
+#define BTA_DM_NUM_PM_TIMER 7
+
+/* DM control block */
+typedef struct
+{
+    BOOLEAN                     is_bta_dm_active;
+    tBTA_DM_ACTIVE_LINK         device_list;
+    tBTA_DM_SEC_CBACK           *p_sec_cback;
+#if ((defined BLE_INCLUDED) && (BLE_INCLUDED == TRUE))
+    tBTA_BLE_SCAN_SETUP_CBACK   *p_setup_cback;
+    tBTA_DM_BLE_PF_CFG_CBACK     *p_scan_filt_cfg_cback;
+    tBTA_DM_BLE_PF_STATUS_CBACK  *p_scan_filt_status_cback;
+    tBTA_DM_BLE_PF_PARAM_CBACK   *p_scan_filt_param_cback;
+    tBTA_BLE_MULTI_ADV_CBACK     *p_multi_adv_cback;
+    tBTA_BLE_ENERGY_INFO_CBACK   *p_energy_info_cback;
+#endif
+    UINT16                      state;
+    BOOLEAN                     disabling;
+    alarm_t                     *disable_timer;
+    UINT32                      wbt_sdp_handle;          /* WIDCOMM Extensions SDP record handle */
+    UINT8                       wbt_scn;                 /* WIDCOMM Extensions SCN */
+    UINT8                       num_master_only;
+    UINT8                       pm_id;
+    tBTA_PM_TIMER               pm_timer[BTA_DM_NUM_PM_TIMER];
+    UINT32                      role_policy_mask;   /* the bits set indicates the modules that wants to remove role switch from the default link policy */
+    UINT16                      cur_policy;         /* current default link policy */
+    UINT16                      rs_event;           /* the event waiting for role switch */
+    UINT8                       cur_av_count;       /* current AV connecions */
+    BOOLEAN                     disable_pair_mode;          /* disable pair mode or not */
+    BOOLEAN                     conn_paired_only;   /* allow connectable to paired device only or not */
+    tBTA_DM_API_SEARCH          search_msg;
+    UINT16                      page_scan_interval;
+    UINT16                      page_scan_window;
+    UINT16                      inquiry_scan_interval;
+    UINT16                      inquiry_scan_window;
+
+    /* Storage for pin code request parameters */
+    BD_ADDR                     pin_bd_addr;
+    DEV_CLASS                   pin_dev_class;
+    tBTA_DM_SEC_EVT             pin_evt;
+    UINT32          num_val;        /* the numeric value for comparison. If just_works, do not show this number to UI */
+    BOOLEAN         just_works;     /* TRUE, if "Just Works" association model */
+#if ( BTA_EIR_CANNED_UUID_LIST != TRUE )
+    /* store UUID list for EIR */
+    UINT32                      eir_uuid[BTM_EIR_SERVICE_ARRAY_SIZE];
+#if (BTA_EIR_SERVER_NUM_CUSTOM_UUID > 0)
+    tBT_UUID                    custom_uuid[BTA_EIR_SERVER_NUM_CUSTOM_UUID];
+#endif
+
+#endif
+
+
+    tBTA_DM_ENCRYPT_CBACK      *p_encrypt_cback;
+    alarm_t                    *switch_delay_timer;
+
+} tBTA_DM_CB;
+
+/* DM search control block */
+typedef struct
+{
+
+    tBTA_DM_SEARCH_CBACK * p_search_cback;
+    tBTM_INQ_INFO        * p_btm_inq_info;
+    tBTA_SERVICE_MASK      services;
+    tBTA_SERVICE_MASK      services_to_search;
+    tBTA_SERVICE_MASK      services_found;
+    tSDP_DISCOVERY_DB    * p_sdp_db;
+    UINT16                 state;
+    BD_ADDR                peer_bdaddr;
+    BOOLEAN                name_discover_done;
+    BD_NAME                peer_name;
+    alarm_t              * search_timer;
+    UINT8                  service_index;
+    tBTA_DM_MSG          * p_search_queue;   /* search or discover commands during search cancel stored here */
+    BOOLEAN                wait_disc;
+    BOOLEAN                sdp_results;
+    tSDP_UUID              uuid;
+    UINT8                  peer_scn;
+    BOOLEAN                sdp_search;
+    BOOLEAN                cancel_pending; /* inquiry cancel is pending */
+    tBTA_TRANSPORT         transport;
+#if ((defined BLE_INCLUDED) && (BLE_INCLUDED == TRUE))
+    tBTA_DM_SEARCH_CBACK * p_scan_cback;
+#if ((defined BTA_GATT_INCLUDED) && (BTA_GATT_INCLUDED == TRUE))
+    tBTA_GATTC_IF          client_if;
+    UINT8                  num_uuid;
+    tBT_UUID               *p_srvc_uuid;
+    UINT8                  uuid_to_search;
+    BOOLEAN                gatt_disc_active;
+    UINT16                 conn_id;
+    UINT8 *                 p_ble_rawdata;
+    UINT32                 ble_raw_size;
+    UINT32                 ble_raw_used;
+    alarm_t              * gatt_close_timer; /* GATT channel close delay timer */
+    BD_ADDR                pending_close_bda; /* pending GATT channel remote device address */
+#endif
+#endif
+
+
+} tBTA_DM_SEARCH_CB;
+
+/* DI control block */
+typedef struct
+{
+    tSDP_DISCOVERY_DB    * p_di_db;     /* pointer to the DI discovery database */
+    UINT8               di_num;         /* total local DI record number */
+    UINT32              di_handle[BTA_DI_NUM_MAX];  /* local DI record handle, the first one is primary record */
+}tBTA_DM_DI_CB;
+
+/* DM search state */
+enum
+{
+
+    BTA_DM_SEARCH_IDLE,
+    BTA_DM_SEARCH_ACTIVE,
+    BTA_DM_SEARCH_CANCELLING,
+    BTA_DM_DISCOVER_ACTIVE
+
+};
+
+
+
+typedef struct
+{
+    DEV_CLASS      dev_class;          /* local device class */
+    UINT16         policy_settings;    /* link policy setting hold, sniff, park, MS switch */
+    UINT16         page_timeout;       /* timeout for page in slots */
+    UINT16         link_timeout;       /* link supervision timeout in slots */
+    BOOLEAN        avoid_scatter;      /* TRUE to avoid scatternet when av is streaming (be the master) */
+
+} tBTA_DM_CFG;
+
+extern const UINT32 bta_service_id_to_btm_srv_id_lkup_tbl[];
+
+
+typedef struct
+{
+    UINT8   id;
+    UINT8   app_id;
+    UINT8   cfg;
+
+} tBTA_DM_RM ;
+
+extern tBTA_DM_CFG *p_bta_dm_cfg;
+extern tBTA_DM_RM *p_bta_dm_rm_cfg;
+
+typedef struct
+{
+
+  UINT8  id;
+  UINT8  app_id;
+  UINT8  spec_idx;  /* index of spec table to use */
+
+} tBTA_DM_PM_CFG;
+
+
+typedef struct
+{
+
+  tBTA_DM_PM_ACTION   power_mode;
+  UINT16              timeout;
+
+} tBTA_DM_PM_ACTN;
+
+typedef struct
+{
+
+  UINT8  allow_mask;         /* mask of sniff/hold/park modes to allow */
+#if (BTM_SSR_INCLUDED == TRUE)
+  UINT8  ssr;                /* set SSR on conn open/unpark */
+#endif
+  tBTA_DM_PM_ACTN actn_tbl [BTA_DM_PM_NUM_EVTS][2];
+
+} tBTA_DM_PM_SPEC;
+
+typedef struct
+{
+    UINT16      max_lat;
+    UINT16      min_rmt_to;
+    UINT16      min_loc_to;
+} tBTA_DM_SSR_SPEC;
+
+typedef struct
+{
+   UINT16 manufacturer;
+   UINT16 lmp_sub_version;
+   UINT8 lmp_version;
+}tBTA_DM_LMP_VER_INFO;
+
+extern tBTA_DM_PM_CFG *p_bta_dm_pm_cfg;
+extern tBTA_DM_PM_SPEC *p_bta_dm_pm_spec;
+extern tBTM_PM_PWR_MD *p_bta_dm_pm_md;
+#if (BTM_SSR_INCLUDED == TRUE)
+extern tBTA_DM_SSR_SPEC *p_bta_dm_ssr_spec;
+#endif
+
+/* update dynamic BRCM Aware EIR data */
+extern const tBTA_DM_EIR_CONF bta_dm_eir_cfg;
+extern tBTA_DM_EIR_CONF *p_bta_dm_eir_cfg;
+
+/* DM control block */
+#if BTA_DYNAMIC_MEMORY == FALSE
+extern tBTA_DM_CB  bta_dm_cb;
+#else
+extern tBTA_DM_CB *bta_dm_cb_ptr;
+#define bta_dm_cb (*bta_dm_cb_ptr)
+#endif
+
+/* DM search control block */
+#if BTA_DYNAMIC_MEMORY == FALSE
+extern tBTA_DM_SEARCH_CB  bta_dm_search_cb;
+#else
+extern tBTA_DM_SEARCH_CB *bta_dm_search_cb_ptr;
+#define bta_dm_search_cb (*bta_dm_search_cb_ptr)
+#endif
+
+/* DI control block */
+#if BTA_DYNAMIC_MEMORY == FALSE
+extern tBTA_DM_DI_CB  bta_dm_di_cb;
+#else
+extern tBTA_DM_DI_CB *bta_dm_di_cb_ptr;
+#define bta_dm_di_cb (*bta_dm_di_cb_ptr)
+#endif
+
+extern BOOLEAN bta_dm_sm_execute(BT_HDR *p_msg);
+extern void bta_dm_sm_disable( void );
+extern BOOLEAN bta_dm_search_sm_execute(BT_HDR *p_msg);
+extern void bta_dm_search_sm_disable( void );
+
+
+extern void bta_dm_enable (tBTA_DM_MSG *p_data);
+extern void bta_dm_disable (tBTA_DM_MSG *p_data);
+extern void bta_dm_init_cb(void);
+extern void bta_dm_set_dev_name (tBTA_DM_MSG *p_data);
+extern void bta_dm_set_visibility (tBTA_DM_MSG *p_data);
+
+extern void bta_dm_set_scan_config(tBTA_DM_MSG *p_data);
+extern void bta_dm_vendor_spec_command(tBTA_DM_MSG *p_data);
+extern void bta_dm_bond (tBTA_DM_MSG *p_data);
+extern void bta_dm_bond_cancel (tBTA_DM_MSG *p_data);
+extern void bta_dm_pin_reply (tBTA_DM_MSG *p_data);
+extern void bta_dm_acl_change(tBTA_DM_MSG *p_data);
+extern void bta_dm_add_device (tBTA_DM_MSG *p_data);
+extern void bta_dm_remove_device (tBTA_DM_MSG *p_data);
+extern void bta_dm_close_acl(tBTA_DM_MSG *p_data);
+
+
+extern void bta_dm_pm_btm_status(tBTA_DM_MSG *p_data);
+extern void bta_dm_pm_timer(tBTA_DM_MSG *p_data);
+extern void bta_dm_add_ampkey (tBTA_DM_MSG *p_data);
+
+#if BLE_INCLUDED == TRUE
+extern void bta_dm_add_blekey (tBTA_DM_MSG *p_data);
+extern void bta_dm_add_ble_device (tBTA_DM_MSG *p_data);
+extern void bta_dm_ble_passkey_reply (tBTA_DM_MSG *p_data);
+extern void bta_dm_ble_confirm_reply (tBTA_DM_MSG *p_data);
+extern void bta_dm_security_grant (tBTA_DM_MSG *p_data);
+extern void bta_dm_ble_set_bg_conn_type (tBTA_DM_MSG *p_data);
+extern void bta_dm_ble_set_conn_params (tBTA_DM_MSG *p_data);
+extern void bta_dm_ble_set_scan_params(tBTA_DM_MSG *p_data);
+extern void bta_dm_ble_set_conn_scan_params (tBTA_DM_MSG *p_data);
+extern void bta_dm_close_gatt_conn(tBTA_DM_MSG *p_data);
+extern void bta_dm_ble_observe (tBTA_DM_MSG *p_data);
+extern void bta_dm_ble_update_conn_params (tBTA_DM_MSG *p_data);
+extern void bta_dm_ble_config_local_privacy (tBTA_DM_MSG *p_data);
+extern void bta_dm_ble_set_adv_params (tBTA_DM_MSG *p_data);
+extern void bta_dm_ble_set_adv_config (tBTA_DM_MSG *p_data);
+extern void bta_dm_ble_set_scan_rsp (tBTA_DM_MSG *p_data);
+extern void bta_dm_ble_broadcast (tBTA_DM_MSG *p_data);
+extern void bta_dm_ble_set_data_length(tBTA_DM_MSG *p_data);
+
+#if BLE_ANDROID_CONTROLLER_SCAN_FILTER == TRUE
+extern void bta_dm_cfg_filter_cond (tBTA_DM_MSG *p_data);
+extern void bta_dm_scan_filter_param_setup (tBTA_DM_MSG *p_data);
+extern void bta_dm_enable_scan_filter(tBTA_DM_MSG *p_data);
+#endif
+extern void btm_dm_ble_multi_adv_disable(tBTA_DM_MSG *p_data);
+extern void bta_dm_ble_multi_adv_data(tBTA_DM_MSG *p_data);
+extern void bta_dm_ble_multi_adv_upd_param(tBTA_DM_MSG *p_data);
+extern void bta_dm_ble_multi_adv_enb(tBTA_DM_MSG *p_data);
+
+extern void bta_dm_ble_setup_storage(tBTA_DM_MSG *p_data);
+extern void bta_dm_ble_enable_batch_scan(tBTA_DM_MSG * p_data);
+extern void bta_dm_ble_disable_batch_scan(tBTA_DM_MSG * p_data);
+extern void bta_dm_ble_read_scan_reports(tBTA_DM_MSG * p_data);
+extern void bta_dm_ble_track_advertiser(tBTA_DM_MSG * p_data);
+extern void bta_dm_ble_get_energy_info(tBTA_DM_MSG *p_data);
+
+#ifdef BLUETOOTH_RTK
+extern void bta_dm_add_ble_device_extra_info(tBTA_DM_MSG *p_data);
+#endif
+#endif
+extern void bta_dm_set_encryption(tBTA_DM_MSG *p_data);
+extern void bta_dm_confirm(tBTA_DM_MSG *p_data);
+extern void bta_dm_loc_oob(tBTA_DM_MSG *p_data);
+extern void bta_dm_ci_io_req_act(tBTA_DM_MSG *p_data);
+extern void bta_dm_ci_rmt_oob_act(tBTA_DM_MSG *p_data);
+
+extern void bta_dm_init_pm(void);
+extern void bta_dm_disable_pm(void);
+
+extern UINT8 bta_dm_get_av_count(void);
+extern void bta_dm_search_start (tBTA_DM_MSG *p_data);
+extern void bta_dm_search_cancel (tBTA_DM_MSG *p_data);
+extern void bta_dm_discover (tBTA_DM_MSG *p_data);
+extern void bta_dm_di_disc (tBTA_DM_MSG *p_data);
+extern void bta_dm_inq_cmpl (tBTA_DM_MSG *p_data);
+extern void bta_dm_rmt_name (tBTA_DM_MSG *p_data);
+extern void bta_dm_sdp_result (tBTA_DM_MSG *p_data);
+extern void bta_dm_search_cmpl (tBTA_DM_MSG *p_data);
+extern void bta_dm_free_sdp_db (tBTA_DM_MSG *p_data);
+extern void bta_dm_disc_result (tBTA_DM_MSG *p_data);
+extern void bta_dm_search_result (tBTA_DM_MSG *p_data);
+extern void bta_dm_discovery_cmpl (tBTA_DM_MSG *p_data);
+extern void bta_dm_queue_search (tBTA_DM_MSG *p_data);
+extern void bta_dm_queue_disc (tBTA_DM_MSG *p_data);
+extern void bta_dm_search_clear_queue (tBTA_DM_MSG *p_data);
+extern void bta_dm_search_cancel_cmpl (tBTA_DM_MSG *p_data);
+extern void bta_dm_search_cancel_notify (tBTA_DM_MSG *p_data);
+extern void bta_dm_search_cancel_transac_cmpl(tBTA_DM_MSG *p_data);
+extern void bta_dm_disc_rmt_name (tBTA_DM_MSG *p_data);
+extern tBTA_DM_PEER_DEVICE * bta_dm_find_peer_device(BD_ADDR peer_addr);
+
+extern void bta_dm_pm_active(BD_ADDR peer_addr);
+
+void bta_dm_eir_update_uuid(UINT16 uuid16, BOOLEAN adding);
+
+extern void bta_dm_enable_test_mode(tBTA_DM_MSG *p_data);
+extern void bta_dm_disable_test_mode(tBTA_DM_MSG *p_data);
+extern void bta_dm_execute_callback(tBTA_DM_MSG *p_data);
+
+
+extern void bta_dm_remove_all_acl(tBTA_DM_MSG *p_data);
+#ifdef BLUETOOTH_RTK
+extern void bta_dm_set_eir_config (tBTA_DM_MSG *p_data);
+#endif
+#endif /* BTA_DM_INT_H */
diff --git a/rtkbt/code/bt/bta/dm/bta_dm_main.c b/rtkbt/code/bt/bta/dm/bta_dm_main.c
new file mode 100755
index 0000000..50bcb69
--- /dev/null
+++ b/rtkbt/code/bt/bta/dm/bta_dm_main.c
@@ -0,0 +1,375 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the main implementation file for the BTA device manager.
+ *
+ ******************************************************************************/
+
+#include "bta_api.h"
+#include "bta_sys.h"
+#include "bta_dm_int.h"
+
+
+/*****************************************************************************
+** Constants and types
+*****************************************************************************/
+
+#if BTA_DYNAMIC_MEMORY == FALSE
+tBTA_DM_CB  bta_dm_cb;
+tBTA_DM_SEARCH_CB bta_dm_search_cb;
+tBTA_DM_DI_CB       bta_dm_di_cb;
+#endif
+
+
+#define BTA_DM_NUM_ACTIONS  (BTA_DM_MAX_EVT & 0x00ff)
+
+/* type for action functions */
+typedef void (*tBTA_DM_ACTION)(tBTA_DM_MSG *p_data);
+
+/* action function list */
+const tBTA_DM_ACTION bta_dm_action[] =
+{
+
+    /* device manager local device API events */
+    bta_dm_enable,            /* 0  BTA_DM_API_ENABLE_EVT */
+    bta_dm_disable,           /* 1  BTA_DM_API_DISABLE_EVT */
+    bta_dm_set_dev_name,      /* 2  BTA_DM_API_SET_NAME_EVT */
+    bta_dm_set_visibility,    /* 3  BTA_DM_API_SET_VISIBILITY_EVT */
+    bta_dm_acl_change,        /* 8  BTA_DM_ACL_CHANGE_EVT */
+    bta_dm_add_device,        /* 9  BTA_DM_API_ADD_DEVICE_EVT */
+    bta_dm_close_acl,        /* 10  BTA_DM_API_ADD_DEVICE_EVT */
+
+    /* security API events */
+    bta_dm_bond,              /* 11  BTA_DM_API_BOND_EVT */
+    bta_dm_bond_cancel,       /* 12  BTA_DM_API_BOND_CANCEL_EVT */
+    bta_dm_pin_reply,         /* 13 BTA_DM_API_PIN_REPLY_EVT */
+
+    /* power manger events */
+    bta_dm_pm_btm_status,     /* 16 BTA_DM_PM_BTM_STATUS_EVT */
+    bta_dm_pm_timer,          /* 17 BTA_DM_PM_TIMER_EVT*/
+
+    /* simple pairing events */
+    bta_dm_confirm,           /* 18 BTA_DM_API_CONFIRM_EVT */
+
+    bta_dm_set_encryption,    /* BTA_DM_API_SET_ENCRYPTION_EVT */
+
+    /* out of band pairing events */
+    bta_dm_loc_oob,           /* 20 BTA_DM_API_LOC_OOB_EVT */
+    bta_dm_ci_io_req_act,     /* 21 BTA_DM_CI_IO_REQ_EVT */
+    bta_dm_ci_rmt_oob_act,    /* 22 BTA_DM_CI_RMT_OOB_EVT */
+
+
+#if BLE_INCLUDED == TRUE
+    bta_dm_add_blekey,          /*  BTA_DM_API_ADD_BLEKEY_EVT           */
+    bta_dm_add_ble_device,      /*  BTA_DM_API_ADD_BLEDEVICE_EVT        */
+    bta_dm_ble_passkey_reply,   /*  BTA_DM_API_BLE_PASSKEY_REPLY_EVT    */
+    bta_dm_ble_confirm_reply,   /*  BTA_DM_API_BLE_CONFIRM_REPLY_EVT    */
+    bta_dm_security_grant,
+    bta_dm_ble_set_bg_conn_type,
+    bta_dm_ble_set_conn_params,  /* BTA_DM_API_BLE_CONN_PARAM_EVT */
+    bta_dm_ble_set_conn_scan_params,  /* BTA_DM_API_BLE_CONN_SCAN_PARAM_EVT */
+    bta_dm_ble_set_scan_params,  /* BTA_DM_API_BLE_SCAN_PARAM_EVT */
+    bta_dm_ble_observe,
+    bta_dm_ble_update_conn_params,   /* BTA_DM_API_UPDATE_CONN_PARAM_EVT */
+#if BLE_PRIVACY_SPT == TRUE
+    bta_dm_ble_config_local_privacy,   /* BTA_DM_API_LOCAL_PRIVACY_EVT */
+#endif
+    bta_dm_ble_set_adv_params,     /* BTA_DM_API_BLE_ADV_PARAM_EVT */
+    bta_dm_ble_set_adv_config,     /* BTA_DM_API_BLE_SET_ADV_CONFIG_EVT */
+    bta_dm_ble_set_scan_rsp,       /* BTA_DM_API_BLE_SET_SCAN_RSPT */
+    bta_dm_ble_broadcast,          /* BTA_DM_API_BLE_BROADCAST_EVT */
+    bta_dm_ble_set_data_length,    /* BTA_DM_API_SET_DATA_LENGTH_EVT */
+#if BLE_ANDROID_CONTROLLER_SCAN_FILTER == TRUE
+    bta_dm_cfg_filter_cond,         /* BTA_DM_API_CFG_FILTER_COND_EVT */
+    bta_dm_scan_filter_param_setup, /* BTA_DM_API_SCAN_FILTER_SETUP_EVT */
+    bta_dm_enable_scan_filter,      /* BTA_DM_API_SCAN_FILTER_ENABLE_EVT */
+#endif
+    bta_dm_ble_multi_adv_enb,           /*  BTA_DM_API_BLE_MULTI_ADV_ENB_EVT*/
+    bta_dm_ble_multi_adv_upd_param,     /*  BTA_DM_API_BLE_MULTI_ADV_PARAM_UPD_EVT */
+    bta_dm_ble_multi_adv_data,          /*  BTA_DM_API_BLE_MULTI_ADV_DATA_EVT */
+    btm_dm_ble_multi_adv_disable,       /*  BTA_DM_API_BLE_MULTI_ADV_DISABLE_EVT */
+    bta_dm_ble_setup_storage,      /* BTA_DM_API_BLE_SETUP_STORAGE_EVT */
+    bta_dm_ble_enable_batch_scan,  /* BTA_DM_API_BLE_ENABLE_BATCH_SCAN_EVT */
+    bta_dm_ble_disable_batch_scan, /* BTA_DM_API_BLE_DISABLE_BATCH_SCAN_EVT */
+    bta_dm_ble_read_scan_reports,  /* BTA_DM_API_BLE_READ_SCAN_REPORTS_EVT */
+    bta_dm_ble_track_advertiser,   /* BTA_DM_API_BLE_TRACK_ADVERTISER_EVT */
+    bta_dm_ble_get_energy_info,    /* BTA_DM_API_BLE_ENERGY_INFO_EVT */
+#endif
+
+    bta_dm_enable_test_mode,    /*  BTA_DM_API_ENABLE_TEST_MODE_EVT     */
+    bta_dm_disable_test_mode,   /*  BTA_DM_API_DISABLE_TEST_MODE_EVT    */
+    bta_dm_execute_callback,    /*  BTA_DM_API_EXECUTE_CBACK_EVT        */
+
+    bta_dm_remove_all_acl,      /* BTA_DM_API_REMOVE_ALL_ACL_EVT */
+    bta_dm_remove_device,       /* BTA_DM_API_REMOVE_DEVICE_EVT */
+#ifdef BLUETOOTH_RTK
+    bta_dm_add_ble_device_extra_info   /*BTA_DM_API_ADD_BLEDEVICEEXTRAINFO_EVT*/
+#endif
+};
+
+
+
+/* state machine action enumeration list */
+enum
+{
+    BTA_DM_API_SEARCH,                  /* 0 bta_dm_search_start */
+    BTA_DM_API_SEARCH_CANCEL,           /* 1 bta_dm_search_cancel */
+    BTA_DM_API_DISCOVER,                /* 2 bta_dm_discover */
+    BTA_DM_INQUIRY_CMPL,                /* 3 bta_dm_inq_cmpl */
+    BTA_DM_REMT_NAME,                   /* 4 bta_dm_rmt_name */
+    BTA_DM_SDP_RESULT,                  /* 5 bta_dm_sdp_result */
+    BTA_DM_SEARCH_CMPL,                 /* 6 bta_dm_search_cmpl*/
+    BTA_DM_FREE_SDP_DB,                 /* 7 bta_dm_free_sdp_db */
+    BTA_DM_DISC_RESULT,                 /* 8 bta_dm_disc_result */
+    BTA_DM_SEARCH_RESULT,               /* 9 bta_dm_search_result */
+    BTA_DM_QUEUE_SEARCH,                /* 10 bta_dm_queue_search */
+    BTA_DM_QUEUE_DISC,                  /* 11 bta_dm_queue_disc */
+    BTA_DM_SEARCH_CLEAR_QUEUE,          /* 12 bta_dm_search_clear_queue */
+    BTA_DM_SEARCH_CANCEL_CMPL,          /* 13 bta_dm_search_cancel_cmpl */
+    BTA_DM_SEARCH_CANCEL_NOTIFY,        /* 14 bta_dm_search_cancel_notify */
+    BTA_DM_SEARCH_CANCEL_TRANSAC_CMPL,  /* 15 bta_dm_search_cancel_transac_cmpl */
+    BTA_DM_DISC_RMT_NAME,               /* 16 bta_dm_disc_rmt_name */
+    BTA_DM_API_DI_DISCOVER,             /* 17 bta_dm_di_disc */
+#if BLE_INCLUDED == TRUE
+    BTA_DM_CLOSE_GATT_CONN,             /* 18 bta_dm_close_gatt_conn */
+#endif
+    BTA_DM_SEARCH_NUM_ACTIONS           /* 19 */
+};
+
+
+/* action function list */
+const tBTA_DM_ACTION bta_dm_search_action[] =
+{
+
+  bta_dm_search_start,              /* 0 BTA_DM_API_SEARCH */
+  bta_dm_search_cancel,             /* 1 BTA_DM_API_SEARCH_CANCEL */
+  bta_dm_discover,                  /* 2 BTA_DM_API_DISCOVER */
+  bta_dm_inq_cmpl,                  /* 3 BTA_DM_INQUIRY_CMPL */
+  bta_dm_rmt_name,                  /* 4 BTA_DM_REMT_NAME */
+  bta_dm_sdp_result,                /* 5 BTA_DM_SDP_RESULT */
+  bta_dm_search_cmpl,               /* 6 BTA_DM_SEARCH_CMPL */
+  bta_dm_free_sdp_db,               /* 7 BTA_DM_FREE_SDP_DB */
+  bta_dm_disc_result,               /* 8 BTA_DM_DISC_RESULT */
+  bta_dm_search_result,             /* 9 BTA_DM_SEARCH_RESULT */
+  bta_dm_queue_search,              /* 10 BTA_DM_QUEUE_SEARCH */
+  bta_dm_queue_disc,                /* 11 BTA_DM_QUEUE_DISC */
+  bta_dm_search_clear_queue,        /* 12 BTA_DM_SEARCH_CLEAR_QUEUE */
+  bta_dm_search_cancel_cmpl,        /* 13 BTA_DM_SEARCH_CANCEL_CMPL */
+  bta_dm_search_cancel_notify,      /* 14 BTA_DM_SEARCH_CANCEL_NOTIFY */
+  bta_dm_search_cancel_transac_cmpl, /* 15 BTA_DM_SEARCH_CANCEL_TRANSAC_CMPL */
+  bta_dm_disc_rmt_name,             /* 16 BTA_DM_DISC_RMT_NAME */
+  bta_dm_di_disc                    /* 17 BTA_DM_API_DI_DISCOVER */
+#if BLE_INCLUDED == TRUE
+  ,bta_dm_close_gatt_conn
+#endif
+};
+
+#define BTA_DM_SEARCH_IGNORE       BTA_DM_SEARCH_NUM_ACTIONS
+/* state table information */
+#define BTA_DM_SEARCH_ACTIONS              2       /* number of actions */
+#define BTA_DM_SEARCH_NEXT_STATE           2       /* position of next state */
+#define BTA_DM_SEARCH_NUM_COLS             3       /* number of columns in state tables */
+
+
+
+/* state table for listen state */
+const UINT8 bta_dm_search_idle_st_table[][BTA_DM_SEARCH_NUM_COLS] =
+{
+
+/* Event                        Action 1                            Action 2                    Next State */
+/* API_SEARCH */            {BTA_DM_API_SEARCH,                BTA_DM_SEARCH_IGNORE,          BTA_DM_SEARCH_ACTIVE},
+/* API_SEARCH_CANCEL */     {BTA_DM_SEARCH_CANCEL_NOTIFY,      BTA_DM_SEARCH_IGNORE,          BTA_DM_SEARCH_IDLE},
+/* API_SEARCH_DISC */       {BTA_DM_API_DISCOVER,              BTA_DM_SEARCH_IGNORE,          BTA_DM_DISCOVER_ACTIVE},
+/* INQUIRY_CMPL */          {BTA_DM_SEARCH_IGNORE,             BTA_DM_SEARCH_IGNORE,          BTA_DM_SEARCH_IDLE},
+/* REMT_NAME_EVT */         {BTA_DM_SEARCH_IGNORE,             BTA_DM_SEARCH_IGNORE,          BTA_DM_SEARCH_IDLE},
+/* SDP_RESULT_EVT */        {BTA_DM_FREE_SDP_DB,               BTA_DM_SEARCH_IGNORE,          BTA_DM_SEARCH_IDLE},
+/* SEARCH_CMPL_EVT */       {BTA_DM_SEARCH_IGNORE,             BTA_DM_SEARCH_IGNORE,          BTA_DM_SEARCH_IDLE},
+/* DISCV_RES_EVT */         {BTA_DM_SEARCH_IGNORE,             BTA_DM_SEARCH_IGNORE,          BTA_DM_SEARCH_IDLE},
+/* API_DI_DISCOVER_EVT */   {BTA_DM_API_DI_DISCOVER,           BTA_DM_SEARCH_IGNORE,          BTA_DM_SEARCH_ACTIVE}
+#if BLE_INCLUDED == TRUE
+/* DISC_CLOSE_TOUT_EVT */   ,{BTA_DM_CLOSE_GATT_CONN,           BTA_DM_SEARCH_IGNORE,          BTA_DM_SEARCH_IDLE}
+#endif
+};
+const UINT8 bta_dm_search_search_active_st_table[][BTA_DM_SEARCH_NUM_COLS] =
+{
+
+/* Event                        Action 1                            Action 2                    Next State */
+/* API_SEARCH */            {BTA_DM_SEARCH_IGNORE,             BTA_DM_SEARCH_IGNORE,          BTA_DM_SEARCH_ACTIVE},
+/* API_SEARCH_CANCEL */     {BTA_DM_API_SEARCH_CANCEL,         BTA_DM_SEARCH_IGNORE,          BTA_DM_SEARCH_CANCELLING},
+/* API_SEARCH_DISC */       {BTA_DM_SEARCH_IGNORE,             BTA_DM_SEARCH_IGNORE,          BTA_DM_SEARCH_ACTIVE},
+/* INQUIRY_CMPL */          {BTA_DM_INQUIRY_CMPL,              BTA_DM_SEARCH_IGNORE,          BTA_DM_SEARCH_ACTIVE},
+/* REMT_NAME_EVT */         {BTA_DM_REMT_NAME,                 BTA_DM_SEARCH_IGNORE,          BTA_DM_SEARCH_ACTIVE},
+/* SDP_RESULT_EVT */        {BTA_DM_SDP_RESULT,                BTA_DM_SEARCH_IGNORE,          BTA_DM_SEARCH_ACTIVE},
+/* SEARCH_CMPL_EVT */       {BTA_DM_SEARCH_CMPL,               BTA_DM_SEARCH_IGNORE,          BTA_DM_SEARCH_IDLE},
+/* DISCV_RES_EVT */         {BTA_DM_SEARCH_RESULT,             BTA_DM_SEARCH_IGNORE,          BTA_DM_SEARCH_ACTIVE},
+/* API_DI_DISCOVER_EVT */   {BTA_DM_SEARCH_IGNORE,             BTA_DM_SEARCH_IGNORE,          BTA_DM_SEARCH_ACTIVE}
+#if BLE_INCLUDED == TRUE
+/* DISC_CLOSE_TOUT_EVT */   ,{BTA_DM_CLOSE_GATT_CONN,          BTA_DM_SEARCH_IGNORE,          BTA_DM_SEARCH_ACTIVE}
+#endif
+
+};
+
+const UINT8 bta_dm_search_search_cancelling_st_table[][BTA_DM_SEARCH_NUM_COLS] =
+{
+
+/* Event                        Action 1                            Action 2                    Next State */
+/* API_SEARCH */            {BTA_DM_QUEUE_SEARCH,               BTA_DM_SEARCH_IGNORE,          BTA_DM_SEARCH_CANCELLING},
+/* API_SEARCH_CANCEL */     {BTA_DM_SEARCH_CLEAR_QUEUE,         BTA_DM_SEARCH_CANCEL_NOTIFY,   BTA_DM_SEARCH_CANCELLING},
+/* API_SEARCH_DISC */       {BTA_DM_QUEUE_DISC,                 BTA_DM_SEARCH_IGNORE,          BTA_DM_SEARCH_CANCELLING},
+/* INQUIRY_CMPL */          {BTA_DM_SEARCH_CANCEL_CMPL,         BTA_DM_SEARCH_IGNORE,          BTA_DM_SEARCH_IDLE},
+/* REMT_NAME_EVT */         {BTA_DM_SEARCH_CANCEL_TRANSAC_CMPL, BTA_DM_SEARCH_CANCEL_CMPL,     BTA_DM_SEARCH_IDLE},
+/* SDP_RESULT_EVT */        {BTA_DM_SEARCH_CANCEL_TRANSAC_CMPL, BTA_DM_SEARCH_CANCEL_CMPL,     BTA_DM_SEARCH_IDLE},
+/* SEARCH_CMPL_EVT */       {BTA_DM_SEARCH_CANCEL_TRANSAC_CMPL, BTA_DM_SEARCH_CANCEL_CMPL,     BTA_DM_SEARCH_IDLE},
+/* DISCV_RES_EVT */         {BTA_DM_SEARCH_CANCEL_TRANSAC_CMPL, BTA_DM_SEARCH_CANCEL_CMPL,     BTA_DM_SEARCH_IDLE},
+/* API_DI_DISCOVER_EVT */   {BTA_DM_SEARCH_IGNORE,              BTA_DM_SEARCH_IGNORE,          BTA_DM_SEARCH_CANCELLING}
+#if BLE_INCLUDED == TRUE
+/* DISC_CLOSE_TOUT_EVT */   ,{BTA_DM_SEARCH_IGNORE,              BTA_DM_SEARCH_IGNORE,          BTA_DM_SEARCH_CANCELLING}
+#endif
+
+};
+
+const UINT8 bta_dm_search_disc_active_st_table[][BTA_DM_SEARCH_NUM_COLS] =
+{
+
+/* Event                        Action 1                            Action 2                    Next State */
+/* API_SEARCH */            {BTA_DM_SEARCH_IGNORE,             BTA_DM_SEARCH_IGNORE,          BTA_DM_DISCOVER_ACTIVE},
+/* API_SEARCH_CANCEL */     {BTA_DM_SEARCH_CANCEL_NOTIFY,      BTA_DM_SEARCH_IGNORE,          BTA_DM_SEARCH_CANCELLING},
+/* API_SEARCH_DISC */       {BTA_DM_SEARCH_IGNORE,             BTA_DM_SEARCH_IGNORE,          BTA_DM_DISCOVER_ACTIVE},
+/* INQUIRY_CMPL */          {BTA_DM_SEARCH_IGNORE,             BTA_DM_SEARCH_IGNORE,          BTA_DM_DISCOVER_ACTIVE},
+/* REMT_NAME_EVT */         {BTA_DM_DISC_RMT_NAME,             BTA_DM_SEARCH_IGNORE,          BTA_DM_DISCOVER_ACTIVE},
+/* SDP_RESULT_EVT */        {BTA_DM_SDP_RESULT,                BTA_DM_SEARCH_IGNORE,          BTA_DM_DISCOVER_ACTIVE},
+/* SEARCH_CMPL_EVT */       {BTA_DM_SEARCH_CMPL,               BTA_DM_SEARCH_IGNORE,          BTA_DM_SEARCH_IDLE},
+/* DISCV_RES_EVT */         {BTA_DM_DISC_RESULT,               BTA_DM_SEARCH_IGNORE,          BTA_DM_DISCOVER_ACTIVE},
+/* API_DI_DISCOVER_EVT */   {BTA_DM_SEARCH_IGNORE,             BTA_DM_SEARCH_IGNORE,          BTA_DM_DISCOVER_ACTIVE}
+
+#if BLE_INCLUDED == TRUE
+/* DISC_CLOSE_TOUT_EVT */   ,{BTA_DM_SEARCH_IGNORE,             BTA_DM_SEARCH_IGNORE,          BTA_DM_DISCOVER_ACTIVE}
+#endif
+};
+
+typedef const UINT8 (*tBTA_DM_ST_TBL)[BTA_DM_SEARCH_NUM_COLS];
+
+/* state table */
+const tBTA_DM_ST_TBL bta_dm_search_st_tbl[] = {
+    bta_dm_search_idle_st_table,
+    bta_dm_search_search_active_st_table,
+    bta_dm_search_search_cancelling_st_table,
+    bta_dm_search_disc_active_st_table
+};
+
+
+/*******************************************************************************
+**
+** Function         bta_dm_sm_disable
+**
+** Description     unregister BTA DM
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_dm_sm_disable( )
+{
+    bta_sys_deregister( BTA_ID_DM );
+}
+
+
+/*******************************************************************************
+**
+** Function         bta_dm_sm_execute
+**
+** Description      State machine event handling function for DM
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+BOOLEAN bta_dm_sm_execute(BT_HDR *p_msg)
+{
+    UINT16  event = p_msg->event & 0x00ff;
+
+    APPL_TRACE_EVENT("bta_dm_sm_execute event:0x%x", event);
+
+    /* execute action functions */
+    if(event < BTA_DM_NUM_ACTIONS)
+    {
+        (*bta_dm_action[event])( (tBTA_DM_MSG*) p_msg);
+    }
+
+    return TRUE;
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_sm_search_disable
+**
+** Description     unregister BTA SEARCH DM
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_dm_search_sm_disable( )
+{
+    bta_sys_deregister( BTA_ID_DM_SEARCH );
+
+}
+
+
+/*******************************************************************************
+**
+** Function         bta_dm_search_sm_execute
+**
+** Description      State machine event handling function for DM
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+BOOLEAN bta_dm_search_sm_execute(BT_HDR *p_msg)
+{
+    tBTA_DM_ST_TBL      state_table;
+    UINT8               action;
+    int                 i;
+
+    APPL_TRACE_EVENT("bta_dm_search_sm_execute state:%d, event:0x%x",
+        bta_dm_search_cb.state, p_msg->event);
+
+    /* look up the state table for the current state */
+    state_table = bta_dm_search_st_tbl[bta_dm_search_cb.state];
+
+    bta_dm_search_cb.state = state_table[p_msg->event & 0x00ff][BTA_DM_SEARCH_NEXT_STATE];
+
+
+    /* execute action functions */
+    for (i = 0; i < BTA_DM_SEARCH_ACTIONS; i++)
+    {
+        if ((action = state_table[p_msg->event & 0x00ff][i]) != BTA_DM_SEARCH_IGNORE)
+        {
+            (*bta_dm_search_action[action])( (tBTA_DM_MSG*) p_msg);
+        }
+        else
+        {
+            break;
+        }
+    }
+    return TRUE;
+}
+
diff --git a/rtkbt/code/bt/bta/dm/bta_dm_pm.c b/rtkbt/code/bt/bta/dm/bta_dm_pm.c
new file mode 100755
index 0000000..bbd4fed
--- /dev/null
+++ b/rtkbt/code/bt/bta/dm/bta_dm_pm.c
@@ -0,0 +1,1287 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains the action functions for device manager state
+ *  machine.
+ *
+ ******************************************************************************/
+
+#include <assert.h>
+#include <string.h>
+
+#include "bt_common.h"
+#include "bta_sys.h"
+#include "bta_api.h"
+#include "bta_dm_int.h"
+#include "btm_api.h"
+
+
+extern fixed_queue_t *btu_bta_alarm_queue;
+
+static void bta_dm_pm_cback(tBTA_SYS_CONN_STATUS status, UINT8 id, UINT8 app_id, BD_ADDR peer_addr);
+static void bta_dm_pm_set_mode(BD_ADDR peer_addr, tBTA_DM_PM_ACTION pm_mode,
+                               tBTA_DM_PM_REQ pm_req);
+static void bta_dm_pm_timer_cback(void *data);
+static void bta_dm_pm_btm_cback(BD_ADDR bd_addr, tBTM_PM_STATUS status, UINT16 value, UINT8 hci_status);
+static BOOLEAN bta_dm_pm_park(BD_ADDR peer_addr);
+static BOOLEAN bta_dm_pm_sniff(tBTA_DM_PEER_DEVICE *p_peer_dev, UINT8 index);
+static BOOLEAN bta_dm_pm_is_sco_active ();
+static int bta_dm_get_sco_index();
+static void bta_dm_pm_hid_check(BOOLEAN bScoActive);
+static void bta_dm_pm_set_sniff_policy(tBTA_DM_PEER_DEVICE *p_dev, BOOLEAN bDisable);
+static void bta_dm_pm_stop_timer_by_index(tBTA_PM_TIMER *p_timer,
+                                          UINT8 timer_idx);
+
+#if (BTM_SSR_INCLUDED == TRUE)
+#if (defined BTA_HH_INCLUDED && BTA_HH_INCLUDED == TRUE)
+#include "../hh/bta_hh_int.h"
+/* BTA_DM_PM_SSR1 will be dedicated for HH SSR setting entry, no other profile can use it */
+#define BTA_DM_PM_SSR_HH      BTA_DM_PM_SSR1
+#endif
+static void bta_dm_pm_ssr(BD_ADDR peer_addr);
+#endif
+
+tBTA_DM_CONNECTED_SRVCS bta_dm_conn_srvcs;
+
+
+/*******************************************************************************
+**
+** Function         bta_dm_init_pm
+**
+** Description      Initializes the BT low power manager
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_dm_init_pm(void)
+{
+    memset(&bta_dm_conn_srvcs, 0x00, sizeof(bta_dm_conn_srvcs));
+
+    /* if there are no power manger entries, so not register */
+    if(p_bta_dm_pm_cfg[0].app_id != 0)
+    {
+        bta_sys_pm_register((tBTA_SYS_CONN_CBACK*)bta_dm_pm_cback);
+
+        BTM_PmRegister((BTM_PM_REG_SET | BTM_PM_REG_NOTIF), &bta_dm_cb.pm_id,
+                       bta_dm_pm_btm_cback);
+    }
+
+    /* Need to initialize all PM timer service IDs */
+    for (int i = 0; i < BTA_DM_NUM_PM_TIMER; i++)
+    {
+        for (int j = 0; j < BTA_DM_PM_MODE_TIMER_MAX; j++)
+            bta_dm_cb.pm_timer[i].srvc_id[j] = BTA_ID_MAX;
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         bta_dm_disable_pm
+**
+** Description      Disable PM
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_dm_disable_pm(void)
+{
+    BTM_PmRegister( BTM_PM_DEREG, &bta_dm_cb.pm_id, NULL);
+
+    /*
+     * Deregister the PM callback from the system handling to prevent
+     * re-enabling the PM timers after this call if the callback is invoked.
+     */
+    bta_sys_pm_register((tBTA_SYS_CONN_CBACK*)NULL);
+
+    /* Need to stop all active timers. */
+    for (int i = 0; i < BTA_DM_NUM_PM_TIMER; i++)
+    {
+        for (int j = 0; j < BTA_DM_PM_MODE_TIMER_MAX; j++)
+        {
+            bta_dm_pm_stop_timer_by_index(&bta_dm_cb.pm_timer[i], j);
+            bta_dm_cb.pm_timer[i].pm_action[j] = BTA_DM_PM_NO_ACTION;
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_get_av_count
+**
+** Description      Get the number of connected AV
+**
+**
+** Returns          number of av connections
+**
+*******************************************************************************/
+UINT8 bta_dm_get_av_count(void)
+{
+    UINT8 count = 0;
+    for (int i = 0; i < bta_dm_conn_srvcs.count; i++)
+    {
+        if (bta_dm_conn_srvcs.conn_srvc[i].id == BTA_ID_AV)
+            ++count;
+    }
+    return count;
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_pm_stop_timer
+**
+** Description      stop a PM timer
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_dm_pm_stop_timer(BD_ADDR peer_addr)
+{
+    APPL_TRACE_DEBUG("%s: ", __func__);
+
+    for(int i=0; i<BTA_DM_NUM_PM_TIMER; i++)
+    {
+        if (bta_dm_cb.pm_timer[i].in_use && !bdcmp(bta_dm_cb.pm_timer[i].peer_bdaddr, peer_addr))
+        {
+            for (int j = 0; j < BTA_DM_PM_MODE_TIMER_MAX; j++)
+            {
+                bta_dm_pm_stop_timer_by_index(&bta_dm_cb.pm_timer[i], j);
+                /*
+                 * TODO: For now, stopping the timer does not reset
+                 * pm_action[j].
+                 * The reason is because some of the internal logic that
+                 * (re)assigns the pm_action[] values is taking into account
+                 * the older value; e.g., see the pm_action[] assignment in
+                 * function bta_dm_pm_start_timer().
+                 * Such subtlety in the execution logic is error prone, and
+                 * should be eliminiated in the future.
+                 */
+            }
+            break;
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_pm_action_to_timer_idx
+**
+** Description      convert power mode into timer index for each connected device
+**
+**
+** Returns          index of the power mode delay timer
+**
+*******************************************************************************/
+static UINT8 bta_pm_action_to_timer_idx(UINT8 pm_action)
+{
+    if (pm_action == BTA_DM_PM_SUSPEND)
+        return BTA_DM_PM_SUSPEND_TIMER_IDX;
+    else if (pm_action == BTA_DM_PM_PARK)
+        return BTA_DM_PM_PARK_TIMER_IDX;
+    else if ((pm_action & BTA_DM_PM_SNIFF) == BTA_DM_PM_SNIFF)
+        return BTA_DM_PM_SNIFF_TIMER_IDX;
+
+    /* Active, no preference, no action and retry */
+    return BTA_DM_PM_MODE_TIMER_MAX;
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_pm_stop_timer_by_mode
+**
+** Description      stop a PM timer
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_dm_pm_stop_timer_by_mode(BD_ADDR peer_addr, UINT8 power_mode)
+{
+    const UINT8 timer_idx = bta_pm_action_to_timer_idx(power_mode);
+    if (timer_idx == BTA_DM_PM_MODE_TIMER_MAX)
+        return;
+
+    for (int i = 0; i < BTA_DM_NUM_PM_TIMER; i++)
+    {
+        if (bta_dm_cb.pm_timer[i].in_use && !bdcmp(bta_dm_cb.pm_timer[i].peer_bdaddr, peer_addr))
+        {
+            if (bta_dm_cb.pm_timer[i].srvc_id[timer_idx] != BTA_ID_MAX)
+            {
+                bta_dm_pm_stop_timer_by_index(&bta_dm_cb.pm_timer[i], timer_idx);
+                /*
+                 * TODO: Intentionally setting pm_action[timer_idx].
+                 * This assignment should be eliminated in the future - see the
+                 * pm_action[] related comment inside function
+                 * bta_dm_pm_stop_timer().
+                 */
+                bta_dm_cb.pm_timer[i].pm_action[timer_idx] = power_mode;
+            }
+            break;
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_pm_stop_timer_by_srvc_id
+**
+** Description      stop all timer started by the service ID.
+**
+**
+** Returns          index of the power mode delay timer
+**
+*******************************************************************************/
+static void bta_dm_pm_stop_timer_by_srvc_id(BD_ADDR peer_addr, UINT8 srvc_id)
+{
+    for (int i = 0; i < BTA_DM_NUM_PM_TIMER; i++)
+    {
+        if (bta_dm_cb.pm_timer[i].in_use && !bdcmp(bta_dm_cb.pm_timer[i].peer_bdaddr, peer_addr))
+        {
+            for (int j = 0; j < BTA_DM_PM_MODE_TIMER_MAX; j++)
+            {
+                if (bta_dm_cb.pm_timer[i].srvc_id[j] == srvc_id)
+                {
+                    bta_dm_pm_stop_timer_by_index(&bta_dm_cb.pm_timer[i], j);
+                    bta_dm_cb.pm_timer[i].pm_action[j] = BTA_DM_PM_NO_ACTION;
+                    break;
+                }
+            }
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_pm_start_timer
+**
+** Description      start a PM timer
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_dm_pm_start_timer(tBTA_PM_TIMER *p_timer, UINT8 timer_idx,
+                                  period_ms_t timeout_ms, UINT8 srvc_id,
+                                  UINT8 pm_action)
+{
+    p_timer->in_use = TRUE;
+
+    if (p_timer->srvc_id[timer_idx] == BTA_ID_MAX)
+        p_timer->active++;
+
+    if (p_timer->pm_action[timer_idx] < pm_action)
+        p_timer->pm_action[timer_idx] = pm_action;
+
+    p_timer->srvc_id[timer_idx] = srvc_id;
+
+    alarm_set_on_queue(p_timer->timer[timer_idx], timeout_ms,
+                       bta_dm_pm_timer_cback, p_timer->timer[timer_idx],
+                       btu_bta_alarm_queue);
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_pm_stop_timer_by_index
+**
+** Description      stop a PM timer
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_dm_pm_stop_timer_by_index(tBTA_PM_TIMER *p_timer,
+                                          UINT8 timer_idx)
+{
+    if ((p_timer == NULL) || (timer_idx >= BTA_DM_PM_MODE_TIMER_MAX))
+        return;
+
+    if (p_timer->srvc_id[timer_idx] == BTA_ID_MAX)
+        return;                 /* The timer was not scheduled */
+
+    assert(p_timer->in_use && (p_timer->active > 0));
+
+    alarm_cancel(p_timer->timer[timer_idx]);
+    p_timer->srvc_id[timer_idx] = BTA_ID_MAX;
+    /* NOTE: pm_action[timer_idx] intentionally not reset */
+
+    p_timer->active--;
+    if (p_timer->active == 0)
+        p_timer->in_use = FALSE;
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_pm_cback
+**
+** Description      Conn change callback from sys for low power management
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_dm_pm_cback(tBTA_SYS_CONN_STATUS status, UINT8 id, UINT8 app_id, BD_ADDR peer_addr)
+{
+
+    UINT8 i,j;
+    UINT8 *p = NULL;
+    tBTA_DM_PEER_DEVICE *p_dev;
+    tBTA_DM_PM_REQ  pm_req = BTA_DM_PM_NEW_REQ;
+
+#if (BTM_SSR_INCLUDED == TRUE)
+    int               index = BTA_DM_PM_SSR0;
+#endif
+
+    APPL_TRACE_DEBUG("bta_dm_pm_cback: st(%d), id(%d), app(%d)", status, id, app_id);
+
+    p_dev = bta_dm_find_peer_device(peer_addr);
+
+    /* find if there is an power mode entry for the service */
+    for(i=1; i<=p_bta_dm_pm_cfg[0].app_id; i++)
+    {
+
+        if((p_bta_dm_pm_cfg[i].id == id)
+            && ((p_bta_dm_pm_cfg[i].app_id == BTA_ALL_APP_ID ) || (p_bta_dm_pm_cfg[i].app_id == app_id )))
+            break;
+
+    }
+
+    /* if no entries are there for the app_id and subsystem in p_bta_dm_pm_spec*/
+    if(i> p_bta_dm_pm_cfg[0].app_id)
+        return;
+
+    bta_dm_pm_stop_timer_by_srvc_id(peer_addr, id);
+    /*p_dev = bta_dm_find_peer_device(peer_addr);*/
+
+#if (BTM_SSR_INCLUDED == TRUE)
+    /* set SSR parameters on SYS CONN OPEN */
+    if((BTA_SYS_CONN_OPEN == status) && p_dev && (p_dev->info & BTA_DM_DI_USE_SSR))
+    {
+        index = p_bta_dm_pm_spec[p_bta_dm_pm_cfg[i].spec_idx].ssr;
+    }
+#endif
+
+    /* if no action for the event */
+    if(p_bta_dm_pm_spec[p_bta_dm_pm_cfg[i].spec_idx].actn_tbl[status][0].power_mode == BTA_DM_PM_NO_ACTION)
+    {
+#if (BTM_SSR_INCLUDED == TRUE)
+        if(BTA_DM_PM_SSR0 == index) /* and do not need to set SSR, return. */
+#endif
+        return;
+    }
+
+    for(j=0; j<bta_dm_conn_srvcs.count ; j++)
+    {
+        /* check if an entry already present */
+        if((bta_dm_conn_srvcs.conn_srvc[j].id == id)
+            && (bta_dm_conn_srvcs.conn_srvc[j].app_id == app_id )
+            && !bdcmp(bta_dm_conn_srvcs.conn_srvc[j].peer_bdaddr, peer_addr))
+        {
+            bta_dm_conn_srvcs.conn_srvc[j].new_request = TRUE;
+            break;
+        }
+
+    }
+
+        /* if subsystem has no more preference on the power mode remove
+       the cb */
+    if(p_bta_dm_pm_spec[p_bta_dm_pm_cfg[i].spec_idx].actn_tbl[status][0].power_mode == BTA_DM_PM_NO_PREF)
+    {
+        if(j != bta_dm_conn_srvcs.count)
+        {
+            bta_dm_conn_srvcs.count--;
+
+            for(; j<bta_dm_conn_srvcs.count ; j++)
+            {
+
+                memcpy(&bta_dm_conn_srvcs.conn_srvc[j], &bta_dm_conn_srvcs.conn_srvc[j+1], sizeof(bta_dm_conn_srvcs.conn_srvc[j]));
+
+            }
+        }
+        else
+        {
+            APPL_TRACE_WARNING("bta_dm_act no entry for connected service cbs");
+            return;
+        }
+    }
+    else if(j == bta_dm_conn_srvcs.count )
+    {
+        /* check if we have more connected service that cbs */
+        if(bta_dm_conn_srvcs.count == BTA_DM_NUM_CONN_SRVS)
+        {
+            APPL_TRACE_WARNING("bta_dm_act no more connected service cbs");
+            return;
+        }
+
+        /* fill in a new cb */
+        bta_dm_conn_srvcs.conn_srvc[j].id = id;
+        bta_dm_conn_srvcs.conn_srvc[j].app_id = app_id;
+        bta_dm_conn_srvcs.conn_srvc[j].new_request = TRUE;
+        bdcpy(bta_dm_conn_srvcs.conn_srvc[j].peer_bdaddr, peer_addr);
+
+        APPL_TRACE_WARNING("new conn_srvc id:%d, app_id:%d", id, app_id);
+
+        bta_dm_conn_srvcs.count++;
+        bta_dm_conn_srvcs.conn_srvc[j].state = status;
+    }
+    else
+    {
+        /* no service is added or removed. only updating status. */
+        bta_dm_conn_srvcs.conn_srvc[j].state = status;
+    }
+
+    /* stop timer */
+    bta_dm_pm_stop_timer(peer_addr);
+    if (bta_dm_conn_srvcs.count > 0) {
+        pm_req = BTA_DM_PM_RESTART;
+        APPL_TRACE_DEBUG("%s bta_dm_pm_stop_timer for current service, restart other "
+           "service timers: count = %d", __func__, bta_dm_conn_srvcs.count);
+    }
+
+    if(p_dev)
+    {
+        p_dev->pm_mode_attempted = 0;
+        p_dev->pm_mode_failed = 0;
+    }
+
+#if (BTM_SSR_INCLUDED == TRUE)
+    if(p_bta_dm_ssr_spec[index].max_lat
+#if (defined BTA_HH_INCLUDED && BTA_HH_INCLUDED == TRUE)
+       || index == BTA_DM_PM_SSR_HH
+#endif
+       )
+    {
+        bta_dm_pm_ssr(peer_addr);
+    }
+    else
+    {
+        if( ((NULL != (p = BTM_ReadLocalFeatures ())) && HCI_SNIFF_SUB_RATE_SUPPORTED(p)) &&
+            ((NULL != (p = BTM_ReadRemoteFeatures (peer_addr))) && HCI_SNIFF_SUB_RATE_SUPPORTED(p)) &&
+            (index == BTA_DM_PM_SSR0))
+        {
+            if (status == BTA_SYS_SCO_OPEN)
+            {
+                APPL_TRACE_DEBUG("%s: SCO inactive, reset SSR to zero", __func__);
+                BTM_SetSsrParams (peer_addr, 0,0,0 );
+            }
+            else if (status == BTA_SYS_SCO_CLOSE)
+            {
+                APPL_TRACE_DEBUG("%s: SCO active, back to old SSR", __func__);
+                bta_dm_pm_ssr(peer_addr);
+            }
+        }
+    }
+#endif
+
+    bta_dm_pm_set_mode(peer_addr, BTA_DM_PM_NO_ACTION, pm_req);
+
+    /* perform the HID link workaround if needed
+    ** 1. If SCO up/down event is received OR
+    ** 2. If HID connection open is received and SCO is already active.
+    **     This will handle the case where HID connects when SCO already active
+    */
+    if ( BTM_IsDeviceUp() &&
+         ( ((status == BTA_SYS_SCO_OPEN) || (status == BTA_SYS_SCO_CLOSE)) ||
+           ((status == BTA_SYS_CONN_OPEN) && (id == BTA_ID_HH) && bta_dm_pm_is_sco_active()) ) )
+    {
+        BOOLEAN bScoActive;
+        if (status == BTA_SYS_CONN_OPEN)
+            bScoActive = TRUE;
+        else
+            bScoActive = (status == BTA_SYS_SCO_OPEN);
+
+        bta_dm_pm_hid_check(bScoActive);
+    }
+
+}
+
+
+/*******************************************************************************
+**
+** Function         bta_dm_pm_set_mode
+**
+** Description      Set the power mode for the device
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+
+static void bta_dm_pm_set_mode(BD_ADDR peer_addr, tBTA_DM_PM_ACTION pm_request,
+                               tBTA_DM_PM_REQ pm_req )
+{
+
+    tBTA_DM_PM_ACTION   pm_action = BTA_DM_PM_NO_ACTION;
+    period_ms_t         timeout_ms = 0;
+    UINT8               i,j;
+    tBTA_DM_PM_ACTION   failed_pm = 0;
+    tBTA_DM_PEER_DEVICE *p_peer_device = NULL;
+    tBTA_DM_PM_ACTION    allowed_modes = 0;
+    tBTA_DM_PM_ACTION    pref_modes = 0;
+    tBTA_DM_PM_CFG      *p_pm_cfg;
+    tBTA_DM_PM_SPEC     *p_pm_spec;
+    tBTA_DM_PM_ACTN     *p_act0, *p_act1;
+    tBTA_DM_SRVCS       *p_srvcs = NULL;
+    BOOLEAN timer_started = FALSE;
+    UINT8   timer_idx, available_timer = BTA_DM_PM_MODE_TIMER_MAX;
+    period_ms_t  remaining_ms = 0;
+
+    if(!bta_dm_cb.device_list.count)
+        return;
+
+    /* see if any attempt to put device in low power mode failed */
+    p_peer_device = bta_dm_find_peer_device(peer_addr);
+    /* if no peer device found return */
+    if (p_peer_device == NULL)
+        return;
+
+    failed_pm = p_peer_device->pm_mode_failed;
+
+    for(i=0; i<bta_dm_conn_srvcs.count ; i++)
+    {
+
+        p_srvcs = &bta_dm_conn_srvcs.conn_srvc[i];
+        if(!bdcmp(p_srvcs->peer_bdaddr, peer_addr))
+        {
+
+            /* p_bta_dm_pm_cfg[0].app_id is the number of entries */
+            for(j=1; j<=p_bta_dm_pm_cfg[0].app_id; j++)
+            {
+                if((p_bta_dm_pm_cfg[j].id == p_srvcs->id)
+                    && ((p_bta_dm_pm_cfg[j].app_id == BTA_ALL_APP_ID ) ||
+                    (p_bta_dm_pm_cfg[j].app_id == p_srvcs->app_id)))
+                    break;
+            }
+
+            p_pm_cfg = &p_bta_dm_pm_cfg[j];
+            p_pm_spec = &p_bta_dm_pm_spec[p_pm_cfg->spec_idx];
+            p_act0 = &p_pm_spec->actn_tbl[p_srvcs->state][0];
+            p_act1 = &p_pm_spec->actn_tbl[p_srvcs->state][1];
+
+            APPL_TRACE_DEBUG("bta_dm_pm_set_mode: srvcsid: %d, state: %d, j: %d", p_srvcs->id, p_srvcs->state, j);
+            allowed_modes |= p_pm_spec->allow_mask;
+
+            /* PM actions are in the order of strictness */
+
+            /* first check if the first preference is ok */
+            if(!(failed_pm & p_act0->power_mode))
+            {
+                pref_modes |= p_act0->power_mode;
+
+                if(p_act0->power_mode >= pm_action)
+                {
+                    pm_action = p_act0->power_mode;
+
+                    if (pm_req != BTA_DM_PM_NEW_REQ || p_srvcs->new_request)
+                    {
+                        p_srvcs->new_request = FALSE;
+                        timeout_ms =  p_act0->timeout;
+                    }
+                }
+            }
+            /* if first preference has already failed, try second preference */
+            else if(!(failed_pm & p_act1->power_mode))
+            {
+                pref_modes |= p_act1->power_mode;
+
+                if(p_act1->power_mode > pm_action)
+                {
+                    pm_action = p_act1->power_mode;
+                    timeout_ms =  p_act1->timeout;
+                }
+            }
+        }
+    }
+
+    if(pm_action & (BTA_DM_PM_PARK | BTA_DM_PM_SNIFF))
+    {
+        /* some service don't like the mode */
+        if(!(allowed_modes & pm_action))
+        {
+
+            /* select the other mode if its allowed and preferred, otherwise 0 which is BTA_DM_PM_NO_ACTION */
+            pm_action =  (allowed_modes & (BTA_DM_PM_PARK | BTA_DM_PM_SNIFF) & pref_modes);
+
+            /* no timeout needed if no action is required */
+            if(pm_action == BTA_DM_PM_NO_ACTION)
+            {
+                timeout_ms = 0;
+            }
+
+        }
+    }
+    /* if need to start a timer */
+    if ((pm_req != BTA_DM_PM_EXECUTE) && (timeout_ms > 0))
+    {
+        for (i=0; i<BTA_DM_NUM_PM_TIMER; i++)
+        {
+            if (bta_dm_cb.pm_timer[i].in_use && bdcmp(bta_dm_cb.pm_timer[i].peer_bdaddr, peer_addr) == 0)
+            {
+                if ((timer_idx = bta_pm_action_to_timer_idx(pm_action)) != BTA_DM_PM_MODE_TIMER_MAX)
+                {
+                    remaining_ms = alarm_get_remaining_ms(bta_dm_cb.pm_timer[i].timer[timer_idx]);
+                    if (remaining_ms < timeout_ms)
+                    {
+                        /* Cancel and restart the timer */
+                        /*
+                         * TODO: The value of pm_action[timer_idx] is
+                         * conditionally updated between the two function
+                         * calls below when the timer is restarted.
+                         * This logic is error-prone and should be eliminated
+                         * in the future.
+                         */
+                        bta_dm_pm_stop_timer_by_index(&bta_dm_cb.pm_timer[i],
+                                                      timer_idx);
+                        bta_dm_pm_start_timer(&bta_dm_cb.pm_timer[i],
+                                              timer_idx, timeout_ms,
+                                              p_srvcs->id, pm_action);
+                    }
+                    timer_started = TRUE;
+                }
+                break;
+            }
+            else if (!bta_dm_cb.pm_timer[i].in_use)
+            {
+                APPL_TRACE_DEBUG("%s dm_pm_timer:%d, %d ms", __func__, i,
+                                 timeout_ms);
+                if (available_timer == BTA_DM_PM_MODE_TIMER_MAX)
+                    available_timer = i;
+            }
+        }
+        /* new power mode for a new active connection */
+        if (!timer_started)
+        {
+            if( available_timer != BTA_DM_PM_MODE_TIMER_MAX)
+            {
+                bdcpy(bta_dm_cb.pm_timer[available_timer].peer_bdaddr, peer_addr);
+                if ((timer_idx = bta_pm_action_to_timer_idx(pm_action)) != BTA_DM_PM_MODE_TIMER_MAX)
+                {
+                    bta_dm_pm_start_timer(&bta_dm_cb.pm_timer[available_timer],
+                                          timer_idx, timeout_ms,
+                                          p_srvcs->id, pm_action);
+                    timer_started = TRUE;
+                }
+            }
+            /* no more timers */
+            else
+            {
+                APPL_TRACE_WARNING("bta_dm_act dm_pm_timer no more");
+            }
+        }
+        return;
+    }
+    /* if pending power mode timer expires, and currecnt link is in a
+       lower power mode than current profile requirement, igonre it */
+    if (pm_req == BTA_DM_PM_EXECUTE && pm_request < pm_action)
+    {
+        APPL_TRACE_ERROR("Ignore the power mode request: %d", pm_request)
+        return;
+    }
+    if(pm_action == BTA_DM_PM_PARK)
+    {
+        p_peer_device->pm_mode_attempted = BTA_DM_PM_PARK;
+        bta_dm_pm_park(peer_addr);
+    }
+    else if(pm_action & BTA_DM_PM_SNIFF)
+    {
+        /* dont initiate SNIFF, if link_policy has it disabled */
+        if (p_peer_device->link_policy & HCI_ENABLE_SNIFF_MODE)
+        {
+            p_peer_device->pm_mode_attempted = BTA_DM_PM_SNIFF;
+            bta_dm_pm_sniff(p_peer_device, (UINT8)(pm_action & 0x0F) );
+        }
+        else
+        {
+            APPL_TRACE_DEBUG("bta_dm_pm_set_mode: Link policy disallows SNIFF, ignore request");
+        }
+    }
+    else if(pm_action == BTA_DM_PM_ACTIVE)
+    {
+        bta_dm_pm_active(peer_addr);
+    }
+}
+/*******************************************************************************
+**
+** Function         bta_ag_pm_park
+**
+** Description      Switch to park mode.
+**
+**
+** Returns          TRUE if park attempted, FALSE otherwise.
+**
+*******************************************************************************/
+static BOOLEAN bta_dm_pm_park(BD_ADDR peer_addr)
+{
+
+    tBTM_PM_MODE    mode = BTM_PM_STS_ACTIVE;
+
+    /* if not in park mode, switch to park */
+    BTM_ReadPowerMode(peer_addr, &mode);
+
+    if(mode != BTM_PM_MD_PARK)
+    {
+        BTM_SetPowerMode (bta_dm_cb.pm_id, peer_addr, &p_bta_dm_pm_md[BTA_DM_PM_PARK_IDX]);
+    }
+    return TRUE;
+
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_pm_sniff
+**
+** Description      Switch to sniff mode.
+**
+**
+** Returns          TRUE if sniff attempted, FALSE otherwise.
+**
+*******************************************************************************/
+static BOOLEAN bta_dm_pm_sniff(tBTA_DM_PEER_DEVICE *p_peer_dev, UINT8 index)
+{
+    tBTM_PM_MODE    mode = BTM_PM_STS_ACTIVE;
+    tBTM_PM_PWR_MD  pwr_md;
+    tBTM_STATUS     status;
+#if (BTM_SSR_INCLUDED == TRUE)
+    UINT8 *p_rem_feat = NULL;
+#endif
+
+    BTM_ReadPowerMode(p_peer_dev->peer_bdaddr, &mode);
+    p_rem_feat = BTM_ReadRemoteFeatures (p_peer_dev->peer_bdaddr);
+#if (BTM_SSR_INCLUDED == TRUE)
+    APPL_TRACE_DEBUG("bta_dm_pm_sniff cur:%d, idx:%d, info:x%x", mode, index, p_peer_dev->info);
+    if (mode != BTM_PM_MD_SNIFF ||
+        (HCI_SNIFF_SUB_RATE_SUPPORTED(BTM_ReadLocalFeatures ()) && p_rem_feat &&
+         HCI_SNIFF_SUB_RATE_SUPPORTED(p_rem_feat) &&
+         !(p_peer_dev->info & BTA_DM_DI_USE_SSR)))
+#else
+    APPL_TRACE_DEBUG("bta_dm_pm_sniff cur:%d, idx:%d", mode, index);
+    if(mode != BTM_PM_MD_SNIFF)
+#endif
+    {
+#if (BTM_SSR_INCLUDED == TRUE)
+        /* Dont initiate Sniff if controller has alreay accepted
+         * remote sniff params. This avoid sniff loop issue with
+         * some agrresive headsets who use sniff latencies more than
+         * DUT supported range of Sniff intervals.*/
+        if ((mode == BTM_PM_MD_SNIFF) && (p_peer_dev->info & BTA_DM_DI_ACP_SNIFF))
+        {
+            APPL_TRACE_DEBUG("%s: already in remote initiate sniff", __func__);
+            return TRUE;
+        }
+#endif
+        /* if the current mode is not sniff, issue the sniff command.
+         * If sniff, but SSR is not used in this link, still issue the command */
+        memcpy(&pwr_md, &p_bta_dm_pm_md[index], sizeof (tBTM_PM_PWR_MD));
+        if (p_peer_dev->info & BTA_DM_DI_INT_SNIFF)
+        {
+            pwr_md.mode |= BTM_PM_MD_FORCE;
+        }
+        status = BTM_SetPowerMode (bta_dm_cb.pm_id, p_peer_dev->peer_bdaddr, &pwr_md);
+        if (status == BTM_CMD_STORED|| status == BTM_CMD_STARTED)
+        {
+            p_peer_dev->info &= ~(BTA_DM_DI_INT_SNIFF|BTA_DM_DI_ACP_SNIFF);
+            p_peer_dev->info |= BTA_DM_DI_SET_SNIFF;
+        }
+        else if (status == BTM_SUCCESS)
+        {
+            APPL_TRACE_DEBUG("bta_dm_pm_sniff BTM_SetPowerMode() returns BTM_SUCCESS");
+            p_peer_dev->info &= ~(BTA_DM_DI_INT_SNIFF|BTA_DM_DI_ACP_SNIFF|BTA_DM_DI_SET_SNIFF);
+        }
+        else /* error */
+        {
+            APPL_TRACE_ERROR("bta_dm_pm_sniff BTM_SetPowerMode() returns ERROR status=%d", status);
+            p_peer_dev->info &= ~(BTA_DM_DI_INT_SNIFF|BTA_DM_DI_ACP_SNIFF|BTA_DM_DI_SET_SNIFF);
+        }
+    }
+    return TRUE;
+
+}
+/*******************************************************************************
+**
+** Function         bta_dm_pm_ssr
+**
+** Description      checks and sends SSR parameters
+**
+** Returns          void
+**
+*******************************************************************************/
+#if (BTM_SSR_INCLUDED == TRUE)
+static void bta_dm_pm_ssr(BD_ADDR peer_addr)
+{
+    tBTA_DM_SSR_SPEC *p_spec, *p_spec_cur;
+    UINT8   i,j;
+    int     ssr = BTA_DM_PM_SSR0;
+
+    /* go through the connected services */
+    for(i=0; i<bta_dm_conn_srvcs.count ; i++)
+    {
+        if(!bdcmp(bta_dm_conn_srvcs.conn_srvc[i].peer_bdaddr, peer_addr))
+        {
+            /* p_bta_dm_pm_cfg[0].app_id is the number of entries */
+            for(j=1; j<=p_bta_dm_pm_cfg[0].app_id; j++)
+            {
+                /* find the associated p_bta_dm_pm_cfg */
+                if((p_bta_dm_pm_cfg[j].id == bta_dm_conn_srvcs.conn_srvc[i].id)
+                    && ((p_bta_dm_pm_cfg[j].app_id == BTA_ALL_APP_ID )
+                    || (p_bta_dm_pm_cfg[j].app_id == bta_dm_conn_srvcs.conn_srvc[i].app_id)))
+                {
+                    APPL_TRACE_WARNING("bta_dm_pm_ssr conn_srvc id:%d, app_id:%d",
+                        bta_dm_conn_srvcs.conn_srvc[i].id, bta_dm_conn_srvcs.conn_srvc[i].app_id);
+                    break;
+                }
+            }
+
+            /* find the ssr index with the smallest max latency. */
+            p_spec_cur = &p_bta_dm_ssr_spec[p_bta_dm_pm_spec[p_bta_dm_pm_cfg[j].spec_idx].ssr];
+            p_spec = &p_bta_dm_ssr_spec[ssr];
+
+#if (defined BTA_HH_INCLUDED && BTA_HH_INCLUDED == TRUE)
+            /* HH has the per connection SSR preference, already read the SSR params from BTA HH */
+            if (p_bta_dm_pm_spec[p_bta_dm_pm_cfg[j].spec_idx].ssr == BTA_DM_PM_SSR_HH)
+            {
+                if (bta_hh_read_ssr_param(peer_addr, &p_spec_cur->max_lat, &p_spec_cur->min_rmt_to) == BTA_HH_ERR)
+                    continue;
+            }
+#endif
+            if (p_spec_cur->max_lat < p_spec->max_lat ||
+                (ssr == BTA_DM_PM_SSR0 && p_bta_dm_pm_spec[p_bta_dm_pm_cfg[j].spec_idx].ssr != BTA_DM_PM_SSR0))
+            {
+                ssr = p_bta_dm_pm_spec[p_bta_dm_pm_cfg[j].spec_idx].ssr;
+            }
+
+        }
+    }
+
+    p_spec = &p_bta_dm_ssr_spec[ssr];
+    APPL_TRACE_WARNING("%s ssr:%d, lat:%d", __func__, ssr, p_spec->max_lat);
+
+    if (p_spec->max_lat)
+    {
+        /* Avoid SSR reset on device which has SCO connected */
+        if (bta_dm_pm_is_sco_active())
+        {
+            int idx = bta_dm_get_sco_index();
+            if (idx != -1)
+            {
+                if (bdcmp(bta_dm_conn_srvcs.conn_srvc[idx].peer_bdaddr, peer_addr) == 0)
+                {
+                    APPL_TRACE_WARNING("%s SCO is active on device, ignore SSR", __func__);
+                    return;
+                }
+            }
+        }
+
+        /* set the SSR parameters. */
+        BTM_SetSsrParams (peer_addr, p_spec->max_lat,
+            p_spec->min_rmt_to, p_spec->min_loc_to);
+    }
+}
+#endif
+/*******************************************************************************
+**
+** Function         bta_dm_pm_active
+**
+** Description      Brings connection to active mode
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_dm_pm_active(BD_ADDR peer_addr)
+{
+    tBTM_PM_PWR_MD  pm;
+
+    memset( (void*)&pm, 0, sizeof(pm));
+
+    /* switch to active mode */
+    pm.mode = BTM_PM_MD_ACTIVE;
+    BTM_SetPowerMode (bta_dm_cb.pm_id, peer_addr, &pm);
+
+
+}
+
+
+/*******************************************************************************
+**
+** Function         bta_dm_pm_btm_cback
+**
+** Description      BTM power manager callback.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_dm_pm_btm_cback(BD_ADDR bd_addr, tBTM_PM_STATUS status, UINT16 value, UINT8 hci_status)
+{
+    tBTA_DM_PM_BTM_STATUS *p_buf =
+        (tBTA_DM_PM_BTM_STATUS *)osi_malloc(sizeof(tBTA_DM_PM_BTM_STATUS));
+
+    p_buf->hdr.event = BTA_DM_PM_BTM_STATUS_EVT;
+    p_buf->status = status;
+    p_buf->value = value;
+    p_buf->hci_status = hci_status;
+    bdcpy(p_buf->bd_addr, bd_addr);
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_pm_timer_cback
+**
+** Description      Power management timer callback.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_dm_pm_timer_cback(void *data)
+{
+    UINT8 i, j;
+    alarm_t *alarm = (alarm_t *)data;
+
+    for (i=0; i<BTA_DM_NUM_PM_TIMER; i++)
+    {
+        APPL_TRACE_DEBUG("dm_pm_timer[%d] in use? %d", i, bta_dm_cb.pm_timer[i].in_use);
+        if (bta_dm_cb.pm_timer[i].in_use)
+        {
+            for (j = 0; j < BTA_DM_PM_MODE_TIMER_MAX; j++)
+            {
+                if (bta_dm_cb.pm_timer[i].timer[j] == alarm)
+                {
+                    bta_dm_cb.pm_timer[i].active --;
+                    bta_dm_cb.pm_timer[i].srvc_id[j] = BTA_ID_MAX;
+                    APPL_TRACE_DEBUG("dm_pm_timer[%d] expires, timer_idx=%d", i, j);
+                    break;
+                }
+            }
+            if (bta_dm_cb.pm_timer[i].active == 0)
+                bta_dm_cb.pm_timer[i].in_use = FALSE;
+            if (j < BTA_DM_PM_MODE_TIMER_MAX)
+                break;
+        }
+    }
+
+    /* no more timers */
+    if (i==BTA_DM_NUM_PM_TIMER)
+        return;
+
+    tBTA_DM_PM_TIMER *p_buf =
+        (tBTA_DM_PM_TIMER *)osi_malloc(sizeof(tBTA_DM_PM_TIMER));
+    p_buf->hdr.event = BTA_DM_PM_TIMER_EVT;
+    p_buf->pm_request = bta_dm_cb.pm_timer[i].pm_action[j];
+    bdcpy(p_buf->bd_addr, bta_dm_cb.pm_timer[i].peer_bdaddr);
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_pm_btm_status
+**
+** Description      Process pm status event from btm
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_dm_pm_btm_status(tBTA_DM_MSG *p_data)
+{
+    APPL_TRACE_DEBUG("%s status: %d", __func__, p_data->pm_status.status);
+
+    tBTA_DM_PEER_DEVICE *p_dev = bta_dm_find_peer_device(p_data->pm_status.bd_addr);
+    if (NULL == p_dev)
+        return;
+
+    tBTA_DM_DEV_INFO info = p_dev->info;
+    /* check new mode */
+    switch (p_data->pm_status.status)
+    {
+        case BTM_PM_STS_ACTIVE:
+            /* if our sniff or park attempt failed
+            we should not try it again*/
+            if (p_data->pm_status.hci_status != 0)
+            {
+                APPL_TRACE_ERROR("%s hci_status=%d", __func__, p_data->pm_status.hci_status);
+                p_dev->info &= ~(BTA_DM_DI_INT_SNIFF|BTA_DM_DI_ACP_SNIFF|BTA_DM_DI_SET_SNIFF);
+
+                if(p_dev->pm_mode_attempted &(BTA_DM_PM_PARK | BTA_DM_PM_SNIFF))
+                {
+                    p_dev->pm_mode_failed
+                        |= ((BTA_DM_PM_PARK | BTA_DM_PM_SNIFF) & p_dev->pm_mode_attempted);
+                    bta_dm_pm_stop_timer_by_mode(p_data->pm_status.bd_addr, p_dev->pm_mode_attempted);
+                    bta_dm_pm_set_mode(p_data->pm_status.bd_addr, BTA_DM_PM_NO_ACTION, BTA_DM_PM_RESTART);
+                }
+            }
+            else
+            {
+#if (BTM_SSR_INCLUDED == TRUE)
+                if(p_dev->prev_low)
+                {
+                    /* need to send the SSR paramaters to controller again */
+                    bta_dm_pm_ssr(p_dev->peer_bdaddr);
+                }
+                p_dev->prev_low = BTM_PM_STS_ACTIVE;
+#endif
+                /* link to active mode, need to restart the timer for next low power mode if needed */
+                bta_dm_pm_stop_timer(p_data->pm_status.bd_addr);
+                bta_dm_pm_set_mode(p_data->pm_status.bd_addr, BTA_DM_PM_NO_ACTION, BTA_DM_PM_RESTART);
+            }
+            break;
+
+#if (BTM_SSR_INCLUDED == TRUE)
+        case BTM_PM_STS_PARK:
+        case BTM_PM_STS_HOLD:
+            /* save the previous low power mode - for SSR.
+             * SSR parameters are sent to controller on "conn open".
+             * the numbers stay good until park/hold/detach */
+            if(p_dev->info & BTA_DM_DI_USE_SSR)
+                p_dev->prev_low = p_data->pm_status.status;
+            break;
+
+        case BTM_PM_STS_SSR:
+            if(p_data->pm_status.value)
+                p_dev->info |= BTA_DM_DI_USE_SSR;
+            else
+                p_dev->info &= ~BTA_DM_DI_USE_SSR;
+            break;
+#endif
+        case BTM_PM_STS_SNIFF:
+            if (p_data->pm_status.hci_status == 0)
+            {
+                /* Stop PM timer now if already active for
+                 * particular device since link is already
+                 * put in sniff mode by remote device, and
+                 * PM timer sole purpose is to put the link
+                 * in sniff mode from host side.
+                 */
+                bta_dm_pm_stop_timer(p_data->pm_status.bd_addr);
+            }
+            else
+            {
+                p_dev->info &= ~(BTA_DM_DI_SET_SNIFF | BTA_DM_DI_INT_SNIFF | BTA_DM_DI_ACP_SNIFF);
+                if (info & BTA_DM_DI_SET_SNIFF)
+                    p_dev->info |= BTA_DM_DI_INT_SNIFF;
+                else
+                    p_dev->info |= BTA_DM_DI_ACP_SNIFF;
+            }
+            break;
+
+        case BTM_PM_STS_ERROR:
+            p_dev->info &= ~BTA_DM_DI_SET_SNIFF;
+            break;
+
+        default:
+            break;
+    }
+
+
+
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_pm_timer
+**
+** Description      Process pm timer event from btm
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_dm_pm_timer(tBTA_DM_MSG *p_data)
+{
+    APPL_TRACE_EVENT("%s", __func__);
+    bta_dm_pm_set_mode(p_data->pm_timer.bd_addr, p_data->pm_timer.pm_request, BTA_DM_PM_EXECUTE);
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_find_peer_device
+**
+** Description      Given an address, find the associated control block.
+**
+** Returns          tBTA_DM_PEER_DEVICE
+**
+*******************************************************************************/
+tBTA_DM_PEER_DEVICE * bta_dm_find_peer_device(BD_ADDR peer_addr)
+{
+    tBTA_DM_PEER_DEVICE *p_dev = NULL;
+
+    for (int i=0; i<bta_dm_cb.device_list.count; i++)
+    {
+        if(!bdcmp( bta_dm_cb.device_list.peer_device[i].peer_bdaddr, peer_addr))
+        {
+            p_dev = &bta_dm_cb.device_list.peer_device[i];
+            break;
+        }
+
+    }
+    return p_dev;
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_is_sco_active
+**
+** Description      Loop through connected services for HFP+State=SCO
+**
+** Returns          BOOLEAN. TRUE if SCO active, else FALSE
+**
+*******************************************************************************/
+static BOOLEAN bta_dm_pm_is_sco_active ()
+{
+    int j;
+    BOOLEAN bScoActive = FALSE;
+
+    for(j=0; j<bta_dm_conn_srvcs.count ; j++)
+    {
+        /* check if an entry already present */
+        if ( (bta_dm_conn_srvcs.conn_srvc[j].id == BTA_ID_AG )  && (bta_dm_conn_srvcs.conn_srvc[j].state == BTA_SYS_SCO_OPEN) )
+        {
+            bScoActive = TRUE;
+            break;
+        }
+    }
+
+    APPL_TRACE_DEBUG("bta_dm_is_sco_active: SCO active: %d", bScoActive);
+    return bScoActive;
+}
+
+
+/*******************************************************************************
+**
+** Function        bta_dm_get_sco_index
+**
+** Description     Loop through connected services for HFP+State=SCO
+**
+** Returns         index at which SCO is connected, in absence of SCO return -1
+**
+*******************************************************************************/
+static int bta_dm_get_sco_index()
+{
+    for(int j = 0; j < bta_dm_conn_srvcs.count; j++)
+    {
+        /* check for SCO connected index */
+        if ( (bta_dm_conn_srvcs.conn_srvc[j].id == BTA_ID_AG ) &&
+             (bta_dm_conn_srvcs.conn_srvc[j].state == BTA_SYS_SCO_OPEN) )
+        {
+            return j;
+        }
+    }
+    return -1;
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_pm_hid_check
+**
+** Description      Disables/Enables sniff in link policy based on SCO Up/Down
+**
+** Returns          None
+**
+*******************************************************************************/
+static void bta_dm_pm_hid_check(BOOLEAN bScoActive)
+{
+    int j;
+
+    /* if HID is active, disable the link policy */
+    for(j=0; j<bta_dm_conn_srvcs.count ; j++)
+    {
+        /* check if an entry already present */
+        if(bta_dm_conn_srvcs.conn_srvc[j].id == BTA_ID_HH )
+        {
+            APPL_TRACE_DEBUG ("SCO status change(Active: %d), modify HID link policy. state: %d",
+                bScoActive, bta_dm_conn_srvcs.conn_srvc[j].state);
+            bta_dm_pm_set_sniff_policy( bta_dm_find_peer_device(bta_dm_conn_srvcs.conn_srvc[j].peer_bdaddr), bScoActive);
+
+            /* if we had disabled link policy, seems like the hid device stop retrying SNIFF after a few tries. force sniff if needed */
+            if (!bScoActive)
+                bta_dm_pm_set_mode(bta_dm_conn_srvcs.conn_srvc[j].peer_bdaddr, BTA_DM_PM_NO_ACTION,
+                                   BTA_DM_PM_RESTART);
+        }
+    }
+
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_pm_set_sniff_policy
+**
+** Description      Disables/Enables sniff in link policy for the give device
+**
+** Returns          None
+**
+*******************************************************************************/
+static void bta_dm_pm_set_sniff_policy(tBTA_DM_PEER_DEVICE *p_dev, BOOLEAN bDisable)
+{
+    UINT16 policy_setting;
+
+    if (!p_dev)
+        return;
+
+    if (bDisable)
+    {
+        policy_setting = bta_dm_cb.cur_policy &
+            (HCI_ENABLE_MASTER_SLAVE_SWITCH |
+             HCI_ENABLE_HOLD_MODE  |
+             HCI_ENABLE_PARK_MODE);
+
+    }
+    else
+    {
+        /*  allow sniff after sco is closed */
+         policy_setting= bta_dm_cb.cur_policy;
+    }
+
+    /* if disabling SNIFF, make sure link is Active */
+    if (bDisable)
+        bta_dm_pm_active(p_dev->peer_bdaddr);
+
+    /* update device record and set link policy */
+    p_dev->link_policy = policy_setting;
+    BTM_SetLinkPolicy(p_dev->peer_bdaddr, &policy_setting);
+
+}
+
+#if ((defined BLE_INCLUDED) && (BLE_INCLUDED == TRUE))
+/*******************************************************************************
+**
+** Function         bta_dm_pm_obtain_controller_state
+**
+** Description      This function obtains the consolidated controller power state
+**
+** Parameters:
+**
+*******************************************************************************/
+tBTA_DM_CONTRL_STATE bta_dm_pm_obtain_controller_state(void)
+{
+    /*   Did not use counts as it is not sure, how accurate the count values are in
+     **  bta_dm_cb.device_list.count > 0 || bta_dm_cb.device_list.le_count > 0 */
+
+    tBTA_DM_CONTRL_STATE cur_state = BTA_DM_CONTRL_UNKNOWN;
+    cur_state = BTM_PM_ReadControllerState();
+
+    APPL_TRACE_DEBUG("bta_dm_pm_obtain_controller_state: %d", cur_state);
+    return cur_state;
+}
+#endif
diff --git a/rtkbt/code/bt/bta/dm/bta_dm_sco.c b/rtkbt/code/bt/bta/dm/bta_dm_sco.c
new file mode 100755
index 0000000..109140a
--- /dev/null
+++ b/rtkbt/code/bt/bta/dm/bta_dm_sco.c
@@ -0,0 +1,695 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains the down sampling utility to convert PCM samples in
+ *  16k/32k/48k/44.1k/22050/11025 sampling rate into 8K/16bits samples
+ *  required for SCO channel format. One API function isprovided and only
+ *  possible to be used when transmitting SCO data is sent via HCI
+ *  interface.
+ *
+ ******************************************************************************/
+#include <string.h>
+#include "bta_api.h"
+#include "bta_sys.h"
+
+#if (BTM_SCO_HCI_INCLUDED == TRUE)
+
+#ifndef BTA_DM_SCO_DEBUG
+#define BTA_DM_SCO_DEBUG    FALSE
+#endif
+/*****************************************************************************
+**  Constants
+*****************************************************************************/
+
+#define BTA_DM_PCM_OVERLAP_SIZE			     48
+
+#define BTA_DM_PCM_SMPL_RATE_44100     44100
+#define BTA_DM_PCM_SMPL_RATE_22050     22050
+#define BTA_DM_PCM_SMPL_RATE_11025     11025
+
+/*****************************************************************************
+**  Data types for PCM Resampling utility
+*****************************************************************************/
+
+typedef INT32   (*PCONVERT_TO_BT_FILTERED)  (UINT8 *pSrc, void *pDst, UINT32 dwSrcSamples,
+                             UINT32 dwSrcSps,INT32 *pLastCurPos, UINT8 *pOverlapArea);
+typedef INT32   (*PCONVERT_TO_BT_NOFILTER)  (void *pSrc, void *pDst, UINT32 dwSrcSamples,
+                                             UINT32 dwSrcSps);
+typedef struct
+{
+    UINT8               overlap_area[BTA_DM_PCM_OVERLAP_SIZE * 4];
+    UINT32              cur_pos;    /* current position */
+    UINT32              src_sps;    /* samples per second (source audio data) */
+    PCONVERT_TO_BT_FILTERED     filter;    /* the action function to do the
+                                    conversion 44100, 22050, 11025*/
+    PCONVERT_TO_BT_NOFILTER     nofilter;    /* the action function to do
+                                        the conversion 48000, 32000, 16000*/
+    UINT32              bits;       /* number of bits per pcm sample */
+    UINT32              n_channels; /* number of channels (i.e. mono(1), stereo(2)...) */
+    UINT32              sample_size;
+    UINT32              can_be_filtered;
+    UINT32	            divisor;
+} tBTA_DM_PCM_RESAMPLE_CB;
+
+tBTA_DM_PCM_RESAMPLE_CB bta_dm_pcm_cb;
+
+/*****************************************************************************
+**  Macro Definition
+*****************************************************************************/
+
+
+#define CHECK_SATURATION16(x)                                           \
+            if (x > 32767)                                              \
+                x = 32767;                                              \
+            else if (x < -32768)                                        \
+                x = -32768;
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+//
+#define CONVERT_44100_TO_BLUETOOTH(pStart, pEnd)                            \
+    {                                                                       \
+        INT32         out1, out2, out3, out4, out5;                         \
+        SRC_TYPE    *pS = (SRC_TYPE *)pStart;                               \
+        SRC_TYPE    *pSEnd = (SRC_TYPE *)pEnd;                              \
+                                                                            \
+        while (pS < pSEnd)                                                  \
+        {                                                                   \
+            CurrentPos -= 8000;                                             \
+                                                                            \
+            if (CurrentPos >= 0)                                            \
+            {                                                               \
+                pS += SRC_CHANNELS;                                         \
+                continue;                                                   \
+            }                                                               \
+            CurrentPos += dwSrcSps;                                         \
+                                                                            \
+            out1 = (SRC_SAMPLE(0) * 1587)                                   \
+                 + ((SRC_SAMPLE(1) + SRC_SAMPLE(-1)) * 1522)                \
+                 + ((SRC_SAMPLE(2) + SRC_SAMPLE(-2)) * 1337)                \
+                 + ((SRC_SAMPLE(3) + SRC_SAMPLE(-3)) * 1058);               \
+                                                                            \
+            out1 = out1 / 30000;                                            \
+                                                                            \
+            out2 = ((SRC_SAMPLE(4) + SRC_SAMPLE(-4)) * 725)                 \
+                 + ((SRC_SAMPLE(5) + SRC_SAMPLE(-5)) * 384)                 \
+                 + ((SRC_SAMPLE(6) + SRC_SAMPLE(-6)) * 79);                 \
+                                                                            \
+            out2 = out2 / 30000;                                            \
+                                                                            \
+            out3 = ((SRC_SAMPLE(7) + SRC_SAMPLE(-7)) * 156)                 \
+                 + ((SRC_SAMPLE(8) + SRC_SAMPLE(-8)) * 298)                 \
+                 + ((SRC_SAMPLE(9) + SRC_SAMPLE(-9)) * 345);                \
+                                                                            \
+            out3 = out3 / 30000;                                            \
+                                                                            \
+            out4 = ((SRC_SAMPLE(10) + SRC_SAMPLE(-10)) * 306)               \
+                 + ((SRC_SAMPLE(11) + SRC_SAMPLE(-11)) * 207)               \
+                 + ((SRC_SAMPLE(12) + SRC_SAMPLE(-12)) * 78);               \
+                                                                            \
+            out4 = out4 / 30000;                                            \
+                                                                            \
+            out5 = out1 + out2 - out3 - out4;                               \
+                                                                            \
+            CHECK_SATURATION16(out5);                                       \
+            *psBtOut++ = (INT16)out5;                                       \
+                                                                            \
+            pS += SRC_CHANNELS;                                             \
+        }                                                                   \
+    }
+
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+//
+#define CONVERT_22050_TO_BLUETOOTH(pStart, pEnd)                            \
+    {                                                                       \
+        INT32         out1, out2, out3, out4, out5;                         \
+        SRC_TYPE    *pS = (SRC_TYPE *)pStart;                               \
+        SRC_TYPE    *pSEnd = (SRC_TYPE *)pEnd;                              \
+                                                                            \
+        while (pS < pSEnd)                                                  \
+        {                                                                   \
+            CurrentPos -= 8000;                                             \
+                                                                            \
+            if (CurrentPos >= 0)                                            \
+            {                                                               \
+                pS += SRC_CHANNELS;                                         \
+                continue;                                                   \
+            }                                                               \
+            CurrentPos += dwSrcSps;                                         \
+                                                                            \
+            out1 = (SRC_SAMPLE(0) * 2993)                                   \
+                 + ((SRC_SAMPLE(1) + SRC_SAMPLE(-1)) * 2568)                \
+                 + ((SRC_SAMPLE(2) + SRC_SAMPLE(-2)) * 1509)                \
+                 + ((SRC_SAMPLE(3) + SRC_SAMPLE(-3)) * 331);                \
+                                                                            \
+            out1 = out1 / 30000;                                            \
+                                                                            \
+            out2 = ((SRC_SAMPLE(4) + SRC_SAMPLE(-4)) * 454)                 \
+                 + ((SRC_SAMPLE(5) + SRC_SAMPLE(-5)) * 620)                 \
+                 + ((SRC_SAMPLE(6) + SRC_SAMPLE(-6)) * 305);                \
+                                                                            \
+            out2 = out2 / 30000;                                            \
+                                                                            \
+            out3 = ((SRC_SAMPLE(7) + SRC_SAMPLE(-7)) * 127)                 \
+                 + ((SRC_SAMPLE(8) + SRC_SAMPLE(-8)) * 350)                 \
+                 + ((SRC_SAMPLE(9) + SRC_SAMPLE(-9)) * 265)                 \
+                 + ((SRC_SAMPLE(10) + SRC_SAMPLE(-10)) * 6);                \
+                                                                            \
+            out3 = out3 / 30000;                                            \
+                                                                            \
+            out4 = ((SRC_SAMPLE(11) + SRC_SAMPLE(-11)) * 201);              \
+                                                                            \
+            out4 = out4 / 30000;                                            \
+                                                                            \
+            out5 = out1 - out2 + out3 - out4;                               \
+                                                                            \
+            CHECK_SATURATION16(out5);                                       \
+            *psBtOut++ = (INT16)out5;                                       \
+                                                                            \
+            pS += SRC_CHANNELS;                                             \
+        }                                                                   \
+    }
+
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+//
+#define CONVERT_11025_TO_BLUETOOTH(pStart, pEnd)                            \
+    {                                                                       \
+        INT32         out1;                                                   \
+        SRC_TYPE    *pS = (SRC_TYPE *)pStart;                               \
+        SRC_TYPE    *pSEnd = (SRC_TYPE *)pEnd;                              \
+                                                                            \
+        while (pS < pSEnd)                                                  \
+        {                                                                   \
+            CurrentPos -= 8000;                                             \
+                                                                            \
+            if (CurrentPos >= 0)                                            \
+            {                                                               \
+                pS += SRC_CHANNELS;                                         \
+                continue;                                                   \
+            }                                                               \
+            CurrentPos += dwSrcSps;                                         \
+                                                                            \
+            out1 = (SRC_SAMPLE(0) * 6349)                                   \
+                 + ((SRC_SAMPLE(1) + SRC_SAMPLE(-1)) * 2874)                \
+                 - ((SRC_SAMPLE(2) + SRC_SAMPLE(-2)) * 1148)                \
+                 - ((SRC_SAMPLE(3) + SRC_SAMPLE(-3)) * 287)                 \
+                 + ((SRC_SAMPLE(4) + SRC_SAMPLE(-4)) * 675)                 \
+                 - ((SRC_SAMPLE(5) + SRC_SAMPLE(-5)) * 258)                 \
+                 - ((SRC_SAMPLE(6) + SRC_SAMPLE(-6)) * 206)                 \
+                 + ((SRC_SAMPLE(7) + SRC_SAMPLE(-7)) * 266);                \
+                                                                            \
+            out1 = out1 / 30000;                                            \
+                                                                            \
+            CHECK_SATURATION16(out1);                                       \
+            *psBtOut++ = (INT16)out1;                                       \
+                                                                            \
+            pS += SRC_CHANNELS;                                             \
+        }                                                                   \
+    }
+
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+//
+#undef  SRC_CHANNELS
+#undef  SRC_SAMPLE
+#undef  SRC_TYPE
+
+#define SRC_TYPE        UINT8
+#define SRC_CHANNELS    1
+#define SRC_SAMPLE(x)   ((pS[x]  - 0x80) << 8)
+
+/*****************************************************************************
+**  Local Function
+*****************************************************************************/
+INT32 Convert_8M_ToBT_Filtered (UINT8 *pSrc, void *pDst, UINT32 dwSrcSamples,
+                    UINT32 dwSrcSps, INT32 *pLastCurPos, UINT8 *pOverlapArea)
+{
+    INT32             CurrentPos = *pLastCurPos;
+    SRC_TYPE        *pIn, *pInEnd;
+    SRC_TYPE        *pOv, *pOvEnd;
+    INT16           *psBtOut = (INT16 *)pDst;
+#if BTA_DM_SCO_DEBUG
+    APPL_TRACE_DEBUG("Convert_8M_ToBT_Filtered,  CurrentPos %d\n", CurrentPos);
+#endif
+    memcpy (pOverlapArea + (BTA_DM_PCM_OVERLAP_SIZE * 2), pSrc, BTA_DM_PCM_OVERLAP_SIZE * 2);
+
+    pOv    = (SRC_TYPE *)(pOverlapArea + BTA_DM_PCM_OVERLAP_SIZE);
+	pOvEnd = (SRC_TYPE *)(pOverlapArea + (BTA_DM_PCM_OVERLAP_SIZE * 3));
+
+    pIn     = (SRC_TYPE *)(pSrc + BTA_DM_PCM_OVERLAP_SIZE);
+	pInEnd  = (SRC_TYPE *)(pSrc + (dwSrcSamples * SRC_CHANNELS * sizeof (SRC_TYPE)) - \
+        BTA_DM_PCM_OVERLAP_SIZE);
+
+    if (dwSrcSps == BTA_DM_PCM_SMPL_RATE_44100)
+    {
+        CONVERT_44100_TO_BLUETOOTH(pOv, pOvEnd);
+        CONVERT_44100_TO_BLUETOOTH(pIn, pInEnd);
+    }
+    else if (dwSrcSps == BTA_DM_PCM_SMPL_RATE_22050)
+    {
+        CONVERT_22050_TO_BLUETOOTH(pOv, pOvEnd);
+        CONVERT_22050_TO_BLUETOOTH(pIn, pInEnd);
+    }
+    else if (dwSrcSps == BTA_DM_PCM_SMPL_RATE_11025)
+    {
+        CONVERT_11025_TO_BLUETOOTH(pOv, pOvEnd);
+        CONVERT_11025_TO_BLUETOOTH(pIn, pInEnd);
+    }
+
+    memcpy (pOverlapArea, pSrc + (dwSrcSamples * SRC_CHANNELS * sizeof (SRC_TYPE)) - \
+        (BTA_DM_PCM_OVERLAP_SIZE * 2), BTA_DM_PCM_OVERLAP_SIZE * 2);
+
+    *pLastCurPos = CurrentPos;
+
+    return (psBtOut - (INT16 *)pDst);
+}
+
+INT32 Convert_8M_ToBT_NoFilter (void *pSrc, void *pDst, UINT32 dwSrcSamples, UINT32 dwSrcSps)
+{
+    INT32             CurrentPos;
+    UINT8            *pbSrc = (UINT8 *)pSrc;
+    INT16           *psDst = (INT16 *)pDst;
+    INT16           sWorker;
+
+    //      start at dwSpsSrc / 2, decrement by 8000
+    //
+    CurrentPos = (dwSrcSps >> 1);
+
+    while (dwSrcSamples--)
+    {
+        CurrentPos -= 8000;
+
+        if (CurrentPos >= 0)
+            pbSrc++;
+        else
+        {
+            sWorker = *pbSrc++;
+            sWorker -= 0x80;
+            sWorker <<= 8;
+
+            *psDst++ = sWorker;
+
+            CurrentPos += dwSrcSps;
+        }
+    }
+
+    return (psDst - (INT16 *)pDst);
+}
+
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+//
+#undef  SRC_CHANNELS
+#undef  SRC_SAMPLE
+#undef  SRC_TYPE
+
+#define SRC_TYPE        INT16
+#define SRC_CHANNELS    1
+#define SRC_SAMPLE(x)   pS[x]
+
+INT32 Convert_16M_ToBT_Filtered (UINT8 *pSrc, void *pDst, UINT32 dwSrcSamples,
+                                 UINT32 dwSrcSps, INT32 *pLastCurPos, UINT8 *pOverlapArea)
+{
+    INT32             CurrentPos = *pLastCurPos;
+    SRC_TYPE        *pIn, *pInEnd;
+    SRC_TYPE        *pOv, *pOvEnd;
+    INT16           *psBtOut = (INT16 *)pDst;
+
+    memcpy (pOverlapArea + (BTA_DM_PCM_OVERLAP_SIZE * 2), pSrc, BTA_DM_PCM_OVERLAP_SIZE * 2);
+
+    pOv    = (SRC_TYPE *)(pOverlapArea + BTA_DM_PCM_OVERLAP_SIZE);
+	pOvEnd = (SRC_TYPE *)(pOverlapArea + (BTA_DM_PCM_OVERLAP_SIZE * 3));
+
+    pIn     = (SRC_TYPE *)(pSrc + BTA_DM_PCM_OVERLAP_SIZE);
+	pInEnd  = (SRC_TYPE *)(pSrc + (dwSrcSamples * SRC_CHANNELS * sizeof (SRC_TYPE)) - BTA_DM_PCM_OVERLAP_SIZE);
+
+    if (dwSrcSps == BTA_DM_PCM_SMPL_RATE_44100)
+    {
+        CONVERT_44100_TO_BLUETOOTH(pOv, pOvEnd);
+        CONVERT_44100_TO_BLUETOOTH(pIn, pInEnd);
+    }
+    else if (dwSrcSps == BTA_DM_PCM_SMPL_RATE_22050)
+    {
+        CONVERT_22050_TO_BLUETOOTH(pOv, pOvEnd);
+        CONVERT_22050_TO_BLUETOOTH(pIn, pInEnd);
+    }
+    else if (dwSrcSps == BTA_DM_PCM_SMPL_RATE_11025)
+    {
+        CONVERT_11025_TO_BLUETOOTH(pOv, pOvEnd);
+        CONVERT_11025_TO_BLUETOOTH(pIn, pInEnd);
+    }
+
+    memcpy (pOverlapArea, pSrc + (dwSrcSamples * SRC_CHANNELS * sizeof (SRC_TYPE)) - \
+        (BTA_DM_PCM_OVERLAP_SIZE * 2), BTA_DM_PCM_OVERLAP_SIZE * 2);
+
+    *pLastCurPos = CurrentPos;
+
+    return (psBtOut - (INT16 *)pDst);
+}
+
+INT32 Convert_16M_ToBT_NoFilter (void *pSrc, void *pDst, UINT32 dwSrcSamples, UINT32 dwSrcSps)
+{
+    INT32             CurrentPos;
+    INT16           *psSrc = (INT16 *)pSrc;
+    INT16           *psDst = (INT16 *)pDst;
+
+    //      start at dwSpsSrc / 2, decrement by 8000
+    //
+    CurrentPos = (dwSrcSps >> 1);
+
+    while (dwSrcSamples--)
+    {
+        CurrentPos -= 8000;
+
+        if (CurrentPos >= 0)
+            psSrc++;
+        else
+        {
+            *psDst++ = *psSrc++;
+
+            CurrentPos += dwSrcSps;
+        }
+    }
+
+    return (psDst - (INT16 *)pDst);
+}
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+//
+#undef  SRC_CHANNELS
+#undef  SRC_SAMPLE
+#undef  SRC_TYPE
+
+#define SRC_TYPE        UINT8
+#define SRC_CHANNELS    2
+#define SRC_SAMPLE(x) ((((pS[x * 2]  - 0x80) << 8) + ((pS[(x * 2) + 1]  - 0x80) << 8)) >> 1)
+
+INT32 Convert_8S_ToBT_Filtered (UINT8 *pSrc, void *pDst, UINT32 dwSrcSamples,
+                                UINT32 dwSrcSps, INT32 *pLastCurPos, UINT8 *pOverlapArea)
+{
+    INT32             CurrentPos = *pLastCurPos;
+    SRC_TYPE        *pIn, *pInEnd;
+    SRC_TYPE        *pOv, *pOvEnd;
+    INT16           *psBtOut = (INT16 *)pDst;
+
+#if BTA_DM_SCO_DEBUG
+    APPL_TRACE_DEBUG("Convert_8S_ToBT_Filtered CurrentPos %d, SRC_TYPE %d, SRC_CHANNELS %d, \
+        dwSrcSamples %d,  dwSrcSps %d",  	CurrentPos, sizeof (SRC_TYPE), SRC_CHANNELS, \
+        dwSrcSamples, dwSrcSps);
+#endif
+    memcpy (pOverlapArea + (BTA_DM_PCM_OVERLAP_SIZE * 2), pSrc, BTA_DM_PCM_OVERLAP_SIZE * 2);
+
+    pOv    = (SRC_TYPE *)(pOverlapArea + BTA_DM_PCM_OVERLAP_SIZE);
+	pOvEnd = (SRC_TYPE *)(pOverlapArea + (BTA_DM_PCM_OVERLAP_SIZE * 3));
+
+    pIn     = (SRC_TYPE *)(pSrc + BTA_DM_PCM_OVERLAP_SIZE);
+	pInEnd  = (SRC_TYPE *)(pSrc + (dwSrcSamples * SRC_CHANNELS * sizeof (SRC_TYPE)) - BTA_DM_PCM_OVERLAP_SIZE);
+
+    if (dwSrcSps == BTA_DM_PCM_SMPL_RATE_44100)
+    {
+        CONVERT_44100_TO_BLUETOOTH(pOv, pOvEnd);
+        CONVERT_44100_TO_BLUETOOTH(pIn, pInEnd);
+    }
+    else if (dwSrcSps == BTA_DM_PCM_SMPL_RATE_22050)
+    {
+        CONVERT_22050_TO_BLUETOOTH(pOv, pOvEnd);
+        CONVERT_22050_TO_BLUETOOTH(pIn, pInEnd);
+    }
+    else if (dwSrcSps == BTA_DM_PCM_SMPL_RATE_11025)
+    {
+        CONVERT_11025_TO_BLUETOOTH(pOv, pOvEnd);
+        CONVERT_11025_TO_BLUETOOTH(pIn, pInEnd);
+    }
+
+    memcpy (pOverlapArea, pSrc + (dwSrcSamples * SRC_CHANNELS * sizeof (SRC_TYPE)) - \
+        (BTA_DM_PCM_OVERLAP_SIZE * 2), BTA_DM_PCM_OVERLAP_SIZE * 2);
+
+    *pLastCurPos = CurrentPos;
+
+    return (psBtOut - (INT16 *)pDst);
+}
+
+INT32 Convert_8S_ToBT_NoFilter (void *pSrc, void *pDst, UINT32 dwSrcSamples, UINT32 dwSrcSps)
+{
+    INT32             CurrentPos;
+    UINT8            *pbSrc = (UINT8 *)pSrc;
+    INT16           *psDst = (INT16 *)pDst;
+    INT16           sWorker, sWorker2;
+
+    //      start at dwSpsSrc / 2, decrement by 8000
+    //
+    CurrentPos = (dwSrcSps >> 1);
+
+    while (dwSrcSamples--)
+    {
+        CurrentPos -= 8000;
+
+        if (CurrentPos >= 0)
+            pbSrc += 2;
+        else
+        {
+            sWorker = *(unsigned char *)pbSrc;
+            sWorker -= 0x80;
+            sWorker <<= 8;
+            pbSrc++;
+
+            sWorker2 = *(unsigned char *)pbSrc;
+            sWorker2 -= 0x80;
+            sWorker2 <<= 8;
+            pbSrc++;
+
+            sWorker += sWorker2;
+            sWorker >>= 1;
+
+            *psDst++ = sWorker;
+
+            CurrentPos += dwSrcSps;
+        }
+    }
+
+    return (psDst - (INT16 *)pDst);
+}
+
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+//
+#undef  SRC_CHANNELS
+#undef  SRC_SAMPLE
+#undef  SRC_TYPE
+
+#define SRC_TYPE        INT16
+#define SRC_CHANNELS    2
+#define SRC_SAMPLE(x) ((pS[x * 2] + pS[(x * 2) + 1]) >> 1)
+
+INT32 Convert_16S_ToBT_Filtered (UINT8 *pSrc, void *pDst, UINT32 dwSrcSamples,
+                                 UINT32 dwSrcSps, INT32 *pLastCurPos, UINT8 *pOverlapArea)
+{
+    INT32             CurrentPos = *pLastCurPos;
+    SRC_TYPE        *pIn, *pInEnd;
+    SRC_TYPE        *pOv, *pOvEnd;
+    INT16           *psBtOut = (INT16 *)pDst;
+
+    memcpy (pOverlapArea + (BTA_DM_PCM_OVERLAP_SIZE * 2), pSrc, BTA_DM_PCM_OVERLAP_SIZE * 2);
+
+    pOv    = (SRC_TYPE *)(pOverlapArea + BTA_DM_PCM_OVERLAP_SIZE);
+	pOvEnd = (SRC_TYPE *)(pOverlapArea + (BTA_DM_PCM_OVERLAP_SIZE * 3));
+
+    pIn     = (SRC_TYPE *)(pSrc + BTA_DM_PCM_OVERLAP_SIZE);
+	pInEnd  = (SRC_TYPE *)(pSrc + (dwSrcSamples * SRC_CHANNELS * sizeof (SRC_TYPE)) - BTA_DM_PCM_OVERLAP_SIZE);
+
+    if (dwSrcSps == BTA_DM_PCM_SMPL_RATE_44100)
+    {
+        CONVERT_44100_TO_BLUETOOTH(pOv, pOvEnd);
+        CONVERT_44100_TO_BLUETOOTH(pIn, pInEnd);
+    }
+    else if (dwSrcSps == BTA_DM_PCM_SMPL_RATE_22050)
+    {
+        CONVERT_22050_TO_BLUETOOTH(pOv, pOvEnd);
+        CONVERT_22050_TO_BLUETOOTH(pIn, pInEnd);
+    }
+    else if (dwSrcSps == BTA_DM_PCM_SMPL_RATE_11025)
+    {
+        CONVERT_11025_TO_BLUETOOTH(pOv, pOvEnd);
+        CONVERT_11025_TO_BLUETOOTH(pIn, pInEnd);
+    }
+
+    memcpy (pOverlapArea, pSrc + (dwSrcSamples * SRC_CHANNELS * sizeof (SRC_TYPE)) - \
+        (BTA_DM_PCM_OVERLAP_SIZE * 2), BTA_DM_PCM_OVERLAP_SIZE * 2);
+
+    *pLastCurPos = CurrentPos;
+
+    return (psBtOut - (INT16 *)pDst);
+}
+
+INT32 Convert_16S_ToBT_NoFilter (void *pSrc, void *pDst, UINT32 dwSrcSamples, UINT32 dwSrcSps)
+{
+    INT32             CurrentPos;
+    INT16           *psSrc = (INT16 *)pSrc;
+    INT16           *psDst = (INT16 *)pDst;
+    INT16           sWorker;
+
+    //      start at dwSpsSrc / 2, decrement by 8000
+    //
+    CurrentPos = (dwSrcSps >> 1);
+
+    while (dwSrcSamples--)
+    {
+        CurrentPos -= 8000;
+
+        if (CurrentPos >= 0)
+            psSrc += 2;
+        else
+        {
+            /* CR 82894, to avoid overflow, divide before add */
+            sWorker  = ((*psSrc) >> 1 );
+            psSrc++;
+            sWorker += ((*psSrc) >> 1 );
+            psSrc++;
+
+            *psDst++ = sWorker;
+
+            CurrentPos += dwSrcSps;
+        }
+    }
+
+    return (psDst - (INT16 *)pDst);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_DmPcmInitSamples
+**
+** Description      initialize the down sample converter.
+**
+**                  src_sps: original samples per second (source audio data)
+**                            (ex. 44100, 48000)
+**                  bits: number of bits per pcm sample (16)
+**                  n_channels: number of channels (i.e. mono(1), stereo(2)...)
+**
+** Returns          none
+**
+*******************************************************************************/
+void BTA_DmPcmInitSamples (UINT32 src_sps, UINT32 bits, UINT32 n_channels)
+{
+    tBTA_DM_PCM_RESAMPLE_CB *p_cb = &bta_dm_pcm_cb;
+
+    p_cb->cur_pos       = src_sps / 2;
+    p_cb->src_sps       = src_sps;
+    p_cb->bits          = bits;
+    p_cb->n_channels    = n_channels;
+    p_cb->sample_size   = 2;
+    p_cb->divisor	    = 2;
+
+    memset(p_cb->overlap_area, 0, sizeof(p_cb->overlap_area) );
+
+    if ((src_sps == BTA_DM_PCM_SMPL_RATE_44100) ||
+        (src_sps == BTA_DM_PCM_SMPL_RATE_22050) ||
+        (src_sps == BTA_DM_PCM_SMPL_RATE_11025))
+         p_cb->can_be_filtered = 1;
+    else
+         p_cb->can_be_filtered = 0;
+
+#if BTA_DM_SCO_DEBUG
+    APPL_TRACE_DEBUG("bta_dm_pcm_init_samples: n_channels = %d bits = %d", n_channels, bits);
+#endif
+    if(n_channels == 1)
+    {
+        /* mono */
+        if(bits == 8)
+        {
+            p_cb->filter = (PCONVERT_TO_BT_FILTERED) Convert_8M_ToBT_Filtered;
+            p_cb->nofilter = (PCONVERT_TO_BT_NOFILTER) Convert_8M_ToBT_NoFilter;
+	        p_cb->divisor	 = 1;
+        }
+        else
+        {
+            p_cb->filter = (PCONVERT_TO_BT_FILTERED) Convert_16M_ToBT_Filtered;
+            p_cb->nofilter = (PCONVERT_TO_BT_NOFILTER) Convert_16M_ToBT_NoFilter;
+        }
+    }
+    else
+    {
+        /* stereo */
+        if(bits == 8)
+        {
+            p_cb->filter = (PCONVERT_TO_BT_FILTERED) Convert_8S_ToBT_Filtered;
+            p_cb->nofilter = (PCONVERT_TO_BT_NOFILTER) Convert_8S_ToBT_NoFilter;
+        }
+        else
+        {
+            p_cb->filter = (PCONVERT_TO_BT_FILTERED) Convert_16S_ToBT_Filtered;
+            p_cb->nofilter = (PCONVERT_TO_BT_NOFILTER) Convert_16S_ToBT_NoFilter;
+	        p_cb->divisor	 = 4;
+        }
+    }
+
+#if BTA_DM_SCO_DEBUG
+    APPL_TRACE_DEBUG("bta_pcm_init_dwn_sample: cur_pos %d, src_sps %d", \
+		p_cb->cur_pos, p_cb->src_sps);
+    APPL_TRACE_DEBUG("bta_pcm_init_dwn_sample: bits %d, n_channels %d, sample_size %d, ", \
+		p_cb->bits, p_cb->n_channels, p_cb->sample_size);
+    APPL_TRACE_DEBUG("bta_pcm_init_dwn_sample: can_be_filtered %d, n_channels: %d, \
+        divisor %d", p_cb->can_be_filtered, p_cb->n_channels, p_cb->divisor);
+#endif
+
+}
+
+/**************************************************************************************
+** Function         BTA_DmPcmResample
+**
+** Description      Down sampling utility to convert higher sampling rate into 8K/16bits
+**                  PCM samples.
+**
+** Parameters       p_src: pointer to the buffer where the original sampling PCM
+**                              are stored.
+**                  in_bytes:  Length of the input PCM sample buffer in byte.
+**                  p_dst:      pointer to the buffer which is to be used to store
+**                              the converted PCM samples.
+**
+**
+** Returns          INT32: number of samples converted.
+**
+**************************************************************************************/
+INT32 BTA_DmPcmResample (void *p_src, UINT32 in_bytes, void *p_dst)
+{
+    UINT32 out_sample;
+
+#if BTA_DM_SCO_DEBUG
+    APPL_TRACE_DEBUG("bta_pcm_resample : insamples  %d",  (in_bytes  / bta_dm_pcm_cb.divisor));
+#endif
+    if(bta_dm_pcm_cb.can_be_filtered)
+    {
+        out_sample = (*bta_dm_pcm_cb.filter) (p_src, p_dst, (in_bytes  / bta_dm_pcm_cb.divisor),
+            bta_dm_pcm_cb.src_sps, (INT32 *) &bta_dm_pcm_cb.cur_pos, bta_dm_pcm_cb.overlap_area);
+    }
+    else
+    {
+        out_sample = (*bta_dm_pcm_cb.nofilter) (p_src, p_dst,
+            (in_bytes / bta_dm_pcm_cb.divisor), bta_dm_pcm_cb.src_sps);
+    }
+
+#if BTA_DM_SCO_DEBUG
+    APPL_TRACE_DEBUG("bta_pcm_resample : outsamples  %d",  out_sample);
+#endif
+
+    return (out_sample * bta_dm_pcm_cb.sample_size);
+}
+#endif
diff --git a/rtkbt/code/bt/bta/gatt/bta_gattc_act.c b/rtkbt/code/bt/bta/gatt/bta_gattc_act.c
new file mode 100755
index 0000000..388d9a4
--- /dev/null
+++ b/rtkbt/code/bt/bta/gatt/bta_gattc_act.c
@@ -0,0 +1,2107 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains the GATT client action functions for the state
+ *  machine.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_bta_gattc"
+
+#include <string.h>
+
+#include "bt_target.h"
+#include "bta_gattc_int.h"
+#include "bta_sys.h"
+#include "btif/include/btif_debug_conn.h"
+#include "bt_common.h"
+#include "l2c_api.h"
+#include "osi/include/log.h"
+#include "stack/l2cap/l2c_int.h"
+#include "utl.h"
+
+#if (defined BTA_HH_LE_INCLUDED && BTA_HH_LE_INCLUDED == TRUE)
+#include "bta_hh_int.h"
+#endif
+
+#if BTA_GATT_INCLUDED && BLE_INCLUDED == TRUE
+
+/*****************************************************************************
+**  Constants
+*****************************************************************************/
+static void bta_gattc_conn_cback(tGATT_IF gattc_if, BD_ADDR bda, UINT16 conn_id,
+                                 BOOLEAN connected, tGATT_DISCONN_REASON reason,
+                                 tBT_TRANSPORT transport);
+
+static void  bta_gattc_cmpl_cback(UINT16 conn_id, tGATTC_OPTYPE op, tGATT_STATUS status,
+                                  tGATT_CL_COMPLETE *p_data);
+static void bta_gattc_cmpl_sendmsg(UINT16 conn_id, tGATTC_OPTYPE op,
+                                   tBTA_GATT_STATUS status,
+                                   tGATT_CL_COMPLETE *p_data);
+
+static void bta_gattc_deregister_cmpl(tBTA_GATTC_RCB *p_clreg);
+static void bta_gattc_enc_cmpl_cback(tGATT_IF gattc_if, BD_ADDR bda);
+static void bta_gattc_cong_cback (UINT16 conn_id, BOOLEAN congested);
+
+static tGATT_CBACK bta_gattc_cl_cback =
+{
+    bta_gattc_conn_cback,
+    bta_gattc_cmpl_cback,
+    bta_gattc_disc_res_cback,
+    bta_gattc_disc_cmpl_cback,
+    NULL,
+    bta_gattc_enc_cmpl_cback,
+    bta_gattc_cong_cback
+};
+
+/* opcode(tGATTC_OPTYPE) order has to be comply with internal event order */
+static UINT16 bta_gattc_opcode_to_int_evt[] =
+{
+    BTA_GATTC_API_READ_EVT,
+    BTA_GATTC_API_WRITE_EVT,
+    BTA_GATTC_API_EXEC_EVT,
+    BTA_GATTC_API_CFG_MTU_EVT
+};
+
+#if (BT_TRACE_VERBOSE == TRUE)
+static const char *bta_gattc_op_code_name[] =
+{
+    "Unknown",
+    "Discovery",
+    "Read",
+    "Write",
+    "Exec",
+    "Config",
+    "Notification",
+    "Indication"
+};
+#endif
+/*****************************************************************************
+**  Action Functions
+*****************************************************************************/
+
+
+void bta_gattc_reset_discover_st(tBTA_GATTC_SERV *p_srcb, tBTA_GATT_STATUS status);
+
+/*******************************************************************************
+**
+** Function         bta_gattc_enable
+**
+** Description      Enables GATTC module
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_gattc_enable(tBTA_GATTC_CB *p_cb)
+{
+    APPL_TRACE_DEBUG("bta_gattc_enable");
+
+    if (p_cb->state == BTA_GATTC_STATE_DISABLED)
+    {
+        /* initialize control block */
+        memset(&bta_gattc_cb, 0, sizeof(tBTA_GATTC_CB));
+        p_cb->state = BTA_GATTC_STATE_ENABLED;
+    }
+    else
+    {
+        APPL_TRACE_DEBUG("GATTC is arelady enabled");
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_gattc_disable
+**
+** Description      Disable GATTC module by cleaning up all active connections
+**                  and deregister all application.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_gattc_disable(tBTA_GATTC_CB *p_cb)
+{
+    UINT8           i;
+
+    APPL_TRACE_DEBUG("bta_gattc_disable");
+
+    if (p_cb->state != BTA_GATTC_STATE_ENABLED)
+    {
+        APPL_TRACE_ERROR("not enabled or disable in pogress");
+        return;
+    }
+
+    for (i = 0; i <BTA_GATTC_CL_MAX; i ++)
+    {
+        if (p_cb->cl_rcb[i].in_use)
+        {
+            p_cb->state = BTA_GATTC_STATE_DISABLING;
+            /* don't deregister HH GATT IF */
+            /* HH GATT IF will be deregistered by bta_hh_le_deregister when disable HH */
+#if (defined BTA_HH_LE_INCLUDED && BTA_HH_LE_INCLUDED == TRUE)
+            if (!bta_hh_le_is_hh_gatt_if(p_cb->cl_rcb[i].client_if)) {
+#endif
+                bta_gattc_deregister(p_cb, &p_cb->cl_rcb[i]);
+#if (defined BTA_HH_LE_INCLUDED && BTA_HH_LE_INCLUDED == TRUE)
+            }
+#endif
+        }
+    }
+
+    /* no registered apps, indicate disable completed */
+    if (p_cb->state != BTA_GATTC_STATE_DISABLING)
+    {
+        p_cb->state = BTA_GATTC_STATE_DISABLED;
+        memset(p_cb, 0, sizeof(tBTA_GATTC_CB));
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_gattc_register
+**
+** Description      Register a GATT client application with BTA.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_gattc_register(tBTA_GATTC_CB *p_cb, tBTA_GATTC_DATA *p_data)
+{
+    tBTA_GATTC               cb_data;
+    UINT8                    i;
+    tBT_UUID                 *p_app_uuid = &p_data->api_reg.app_uuid;
+    tBTA_GATT_STATUS         status = BTA_GATT_NO_RESOURCES;
+
+    APPL_TRACE_DEBUG("bta_gattc_register state %d",p_cb->state);
+    memset(&cb_data, 0, sizeof(cb_data));
+    cb_data.reg_oper.status = BTA_GATT_NO_RESOURCES;
+
+     /* check if  GATTC module is already enabled . Else enable */
+     if (p_cb->state == BTA_GATTC_STATE_DISABLED)
+     {
+         bta_gattc_enable (p_cb);
+     }
+    /* todo need to check duplicate uuid */
+    for (i = 0; i < BTA_GATTC_CL_MAX; i ++)
+    {
+        if (!p_cb->cl_rcb[i].in_use)
+        {
+            if ((p_app_uuid == NULL) || (p_cb->cl_rcb[i].client_if = GATT_Register(p_app_uuid, &bta_gattc_cl_cback)) == 0)
+            {
+                APPL_TRACE_ERROR("Register with GATT stack failed.");
+                status = BTA_GATT_ERROR;
+            }
+            else
+            {
+                p_cb->cl_rcb[i].in_use = TRUE;
+                p_cb->cl_rcb[i].p_cback = p_data->api_reg.p_cback;
+                memcpy(&p_cb->cl_rcb[i].app_uuid, p_app_uuid, sizeof(tBT_UUID));
+
+                /* BTA use the same client interface as BTE GATT statck */
+                cb_data.reg_oper.client_if = p_cb->cl_rcb[i].client_if;
+
+                tBTA_GATTC_INT_START_IF *p_buf =
+                    (tBTA_GATTC_INT_START_IF *)osi_malloc(sizeof(tBTA_GATTC_INT_START_IF));
+                p_buf->hdr.event = BTA_GATTC_INT_START_IF_EVT;
+                p_buf->client_if = p_cb->cl_rcb[i].client_if;
+
+                bta_sys_sendmsg(p_buf);
+                status = BTA_GATT_OK;
+                break;
+            }
+        }
+    }
+
+    /* callback with register event */
+    if (p_data->api_reg.p_cback)
+    {
+        if (p_app_uuid != NULL)
+            memcpy(&(cb_data.reg_oper.app_uuid),p_app_uuid,sizeof(tBT_UUID));
+
+        cb_data.reg_oper.status = status;
+        (*p_data->api_reg.p_cback)(BTA_GATTC_REG_EVT,  (tBTA_GATTC *)&cb_data);
+    }
+}
+/*******************************************************************************
+**
+** Function         bta_gattc_start_if
+**
+** Description      start an application interface.
+**
+** Returns          none.
+**
+*******************************************************************************/
+void bta_gattc_start_if(tBTA_GATTC_CB *p_cb, tBTA_GATTC_DATA *p_msg)
+{
+    UNUSED(p_cb);
+
+    if (bta_gattc_cl_get_regcb(p_msg->int_start_if.client_if) !=NULL )
+    {
+        GATT_StartIf(p_msg->int_start_if.client_if);
+    }
+    else
+    {
+        APPL_TRACE_ERROR("Unable to start app.: Unknown interface =%d",p_msg->int_start_if.client_if );
+    }
+}
+/*******************************************************************************
+**
+** Function         bta_gattc_deregister
+**
+** Description      De-Register a GATT client application with BTA.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_gattc_deregister(tBTA_GATTC_CB *p_cb, tBTA_GATTC_RCB  *p_clreg)
+{
+    UINT8               i;
+    BT_HDR              buf;
+
+    if (p_clreg != NULL)
+    {
+        /* remove bg connection associated with this rcb */
+        for (i = 0; i < BTA_GATTC_KNOWN_SR_MAX; i ++)
+        {
+            if (p_cb->bg_track[i].in_use)
+            {
+                if (p_cb->bg_track[i].cif_mask & (1 <<(p_clreg->client_if - 1)))
+                {
+                    bta_gattc_mark_bg_conn(p_clreg->client_if, p_cb->bg_track[i].remote_bda, FALSE, FALSE);
+                    GATT_CancelConnect(p_clreg->client_if, p_cb->bg_track[i].remote_bda, FALSE);
+                }
+                if (p_cb->bg_track[i].cif_adv_mask & (1 <<(p_clreg->client_if - 1)))
+                {
+                    bta_gattc_mark_bg_conn(p_clreg->client_if, p_cb->bg_track[i].remote_bda, FALSE, TRUE);
+                }
+            }
+        }
+
+        if (p_clreg->num_clcb > 0)
+        {
+            /* close all CLCB related to this app */
+            for (i= 0; i < BTA_GATTC_CLCB_MAX; i ++)
+            {
+                if (p_cb->clcb[i].in_use && (p_cb->clcb[i].p_rcb == p_clreg))
+                {
+                    p_clreg->dereg_pending = TRUE;
+
+                    buf.event = BTA_GATTC_API_CLOSE_EVT;
+                    buf.layer_specific = p_cb->clcb[i].bta_conn_id;
+                    bta_gattc_close(&p_cb->clcb[i], (tBTA_GATTC_DATA *)&buf)  ;
+                }
+            }
+        }
+        else
+            bta_gattc_deregister_cmpl(p_clreg);
+    }
+    else
+    {
+        APPL_TRACE_ERROR("bta_gattc_deregister Deregister Failedm unknown client cif");
+    }
+}
+/*******************************************************************************
+**
+** Function         bta_gattc_process_api_open
+**
+** Description      process connect API request.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_gattc_process_api_open (tBTA_GATTC_CB *p_cb, tBTA_GATTC_DATA * p_msg)
+{
+    UINT16 event = ((BT_HDR *)p_msg)->event;
+    tBTA_GATTC_CLCB *p_clcb = NULL;
+    tBTA_GATTC_RCB *p_clreg = bta_gattc_cl_get_regcb(p_msg->api_conn.client_if);
+    UNUSED(p_cb);
+
+    if (p_clreg != NULL)
+    {
+        if (p_msg->api_conn.is_direct)
+        {
+            if ((p_clcb = bta_gattc_find_alloc_clcb(p_msg->api_conn.client_if,
+                                                    p_msg->api_conn.remote_bda,
+                                                    p_msg->api_conn.transport)) != NULL)
+            {
+                bta_gattc_sm_execute(p_clcb, event, p_msg);
+            }
+            else
+            {
+                APPL_TRACE_ERROR("No resources to open a new connection.");
+
+                bta_gattc_send_open_cback(p_clreg,
+                                          BTA_GATT_NO_RESOURCES,
+                                          p_msg->api_conn.remote_bda,
+                                          BTA_GATT_INVALID_CONN_ID,
+                                          p_msg->api_conn.transport, 0);
+            }
+        }
+        else
+        {
+            bta_gattc_init_bk_conn(&p_msg->api_conn, p_clreg);
+        }
+    }
+    else
+    {
+        APPL_TRACE_ERROR("bta_gattc_process_api_open Failed, unknown client_if: %d",
+                        p_msg->api_conn.client_if);
+    }
+}
+/*******************************************************************************
+**
+** Function         bta_gattc_process_api_open_cancel
+**
+** Description      process connect API request.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_gattc_process_api_open_cancel (tBTA_GATTC_CB *p_cb, tBTA_GATTC_DATA * p_msg)
+{
+    UINT16 event = ((BT_HDR *)p_msg)->event;
+    tBTA_GATTC_CLCB *p_clcb = NULL;
+    tBTA_GATTC_RCB *p_clreg;
+    tBTA_GATTC cb_data;
+    UNUSED(p_cb);
+
+    if (p_msg->api_cancel_conn.is_direct)
+    {
+        if ((p_clcb = bta_gattc_find_clcb_by_cif(p_msg->api_cancel_conn.client_if,
+                                                 p_msg->api_cancel_conn.remote_bda,
+                                                 BTA_GATT_TRANSPORT_LE)) != NULL)
+        {
+            bta_gattc_sm_execute(p_clcb, event, p_msg);
+        }
+        else
+        {
+            APPL_TRACE_ERROR("No such connection need to be cancelled");
+
+            p_clreg = bta_gattc_cl_get_regcb(p_msg->api_cancel_conn.client_if);
+
+            if (p_clreg && p_clreg->p_cback)
+            {
+                cb_data.status = BTA_GATT_ERROR;
+                (*p_clreg->p_cback)(BTA_GATTC_CANCEL_OPEN_EVT, &cb_data);
+            }
+        }
+    }
+    else
+    {
+        bta_gattc_cancel_bk_conn(&p_msg->api_cancel_conn);
+
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_gattc_process_enc_cmpl
+**
+** Description      process encryption complete message.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_gattc_process_enc_cmpl(tBTA_GATTC_CB *p_cb, tBTA_GATTC_DATA *p_msg)
+{
+    tBTA_GATTC_RCB *p_clreg;
+    tBTA_GATTC cb_data;
+    UNUSED(p_cb);
+
+    p_clreg = bta_gattc_cl_get_regcb(p_msg->enc_cmpl.client_if);
+
+    if (p_clreg && p_clreg->p_cback)
+    {
+        memset(&cb_data, 0, sizeof(tBTA_GATTC));
+
+        cb_data.enc_cmpl.client_if = p_msg->enc_cmpl.client_if;
+        bdcpy(cb_data.enc_cmpl.remote_bda, p_msg->enc_cmpl.remote_bda);
+
+        (*p_clreg->p_cback)(BTA_GATTC_ENC_CMPL_CB_EVT, &cb_data);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_gattc_cancel_open_error
+**
+** Description
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_gattc_cancel_open_error(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data)
+{
+    tBTA_GATTC cb_data;
+    UNUSED(p_data);
+
+    cb_data.status=BTA_GATT_ERROR;
+
+    if ( p_clcb && p_clcb->p_rcb && p_clcb->p_rcb->p_cback )
+        (*p_clcb->p_rcb->p_cback)(BTA_GATTC_CANCEL_OPEN_EVT, &cb_data);
+}
+
+/*******************************************************************************
+**
+** Function         bta_gattc_open_error
+**
+** Description
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_gattc_open_error(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data)
+{
+    UNUSED(p_data);
+
+    APPL_TRACE_ERROR("Connection already opened. wrong state");
+
+    bta_gattc_send_open_cback(p_clcb->p_rcb,
+                              BTA_GATT_OK,
+                              p_clcb->bda,
+                              p_clcb->bta_conn_id,
+                              p_clcb->transport,
+                              0);
+}
+/*******************************************************************************
+**
+** Function         bta_gattc_open_fail
+**
+** Description
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_gattc_open_fail(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data)
+{
+    UNUSED(p_data);
+
+    bta_gattc_send_open_cback(p_clcb->p_rcb,
+                              BTA_GATT_ERROR,
+                              p_clcb->bda,
+                              p_clcb->bta_conn_id,
+                              p_clcb->transport,
+                              0);
+    /* open failure, remove clcb */
+    bta_gattc_clcb_dealloc(p_clcb);
+}
+
+/*******************************************************************************
+**
+** Function         bta_gattc_open
+**
+** Description      Process API connection function.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_gattc_open(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data)
+{
+    tBTA_GATTC_DATA gattc_data;
+
+    /* open/hold a connection */
+    if (!GATT_Connect(p_clcb->p_rcb->client_if, p_data->api_conn.remote_bda,
+                      TRUE, p_data->api_conn.transport))
+    {
+        APPL_TRACE_ERROR("Connection open failure");
+
+        bta_gattc_sm_execute(p_clcb, BTA_GATTC_INT_OPEN_FAIL_EVT, p_data);
+    }
+    else
+    {
+        /* a connected remote device */
+        if (GATT_GetConnIdIfConnected(p_clcb->p_rcb->client_if,
+                                      p_data->api_conn.remote_bda,
+                                      &p_clcb->bta_conn_id,
+                                      p_data->api_conn.transport))
+        {
+            gattc_data.int_conn.hdr.layer_specific = p_clcb->bta_conn_id;
+
+            bta_gattc_sm_execute(p_clcb, BTA_GATTC_INT_CONN_EVT, &gattc_data);
+        }
+        /* else wait for the callback event */
+    }
+}
+/*******************************************************************************
+**
+** Function         bta_gattc_init_bk_conn
+**
+** Description      Process API Open for a background connection
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_gattc_init_bk_conn(tBTA_GATTC_API_OPEN *p_data, tBTA_GATTC_RCB *p_clreg)
+{
+    tBTA_GATT_STATUS         status = BTA_GATT_NO_RESOURCES;
+    UINT16                   conn_id;
+    tBTA_GATTC_CLCB         *p_clcb;
+    tBTA_GATTC_DATA         gattc_data;
+
+    if (bta_gattc_mark_bg_conn(p_data->client_if, p_data->remote_bda, TRUE, FALSE))
+    {
+        /* always call open to hold a connection */
+        if (!GATT_Connect(p_data->client_if, p_data->remote_bda, FALSE, p_data->transport))
+        {
+            uint8_t *bda = (uint8_t *)p_data->remote_bda;
+            status = BTA_GATT_ERROR;
+            APPL_TRACE_ERROR("%s unable to connect to remote bd_addr:%02x:%02x:%02x:%02x:%02x:%02x",
+                __func__, bda[0], bda[1], bda[2], bda[3], bda[4], bda[5]);
+
+        }
+        else
+        {
+            status = BTA_GATT_OK;
+
+            /* if is a connected remote device */
+            if (GATT_GetConnIdIfConnected(p_data->client_if,
+                                          p_data->remote_bda,
+                                          &conn_id,
+                                          p_data->transport))
+            {
+                if ((p_clcb = bta_gattc_find_alloc_clcb(p_data->client_if, p_data->remote_bda,
+                    BTA_GATT_TRANSPORT_LE)) != NULL)
+                {
+                    gattc_data.hdr.layer_specific = p_clcb->bta_conn_id = conn_id;
+
+                    /* open connection */
+                    bta_gattc_sm_execute(p_clcb, BTA_GATTC_INT_CONN_EVT, &gattc_data);
+                    status = BTA_GATT_OK;
+                }
+            }
+        }
+    }
+
+    /* open failure, report OPEN_EVT */
+    if (status != BTA_GATT_OK)
+    {
+        bta_gattc_send_open_cback(p_clreg, status, p_data->remote_bda,
+        BTA_GATT_INVALID_CONN_ID, BTA_GATT_TRANSPORT_LE, 0);
+    }
+}
+/*******************************************************************************
+**
+** Function         bta_gattc_cancel_bk_conn
+**
+** Description      Process API Cancel Open for a background connection
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_gattc_cancel_bk_conn(tBTA_GATTC_API_CANCEL_OPEN *p_data)
+{
+    tBTA_GATTC_RCB      *p_clreg;
+    tBTA_GATTC          cb_data;
+    cb_data.status = BTA_GATT_ERROR;
+
+    /* remove the device from the bg connection mask */
+    if (bta_gattc_mark_bg_conn(p_data->client_if, p_data->remote_bda, FALSE, FALSE))
+    {
+        if (GATT_CancelConnect(p_data->client_if, p_data->remote_bda, FALSE))
+        {
+            cb_data.status = BTA_GATT_OK;
+        }
+        else
+        {
+            APPL_TRACE_ERROR("bta_gattc_cancel_bk_conn failed");
+        }
+    }
+    p_clreg = bta_gattc_cl_get_regcb(p_data->client_if);
+
+    if (p_clreg && p_clreg->p_cback)
+    {
+        (*p_clreg->p_cback)(BTA_GATTC_CANCEL_OPEN_EVT, &cb_data);
+    }
+
+}
+/*******************************************************************************
+**
+** Function         bta_gattc_int_cancel_open_ok
+**
+** Description
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_gattc_cancel_open_ok(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data)
+{
+    tBTA_GATTC          cb_data;
+    UNUSED(p_data);
+
+    if ( p_clcb->p_rcb->p_cback )
+    {
+        cb_data.status = BTA_GATT_OK;
+        (*p_clcb->p_rcb->p_cback)(BTA_GATTC_CANCEL_OPEN_EVT, &cb_data);
+    }
+
+    bta_gattc_clcb_dealloc(p_clcb);
+}
+/*******************************************************************************
+**
+** Function         bta_gattc_cancel_open
+**
+** Description
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_gattc_cancel_open(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data)
+{
+    tBTA_GATTC          cb_data;
+
+    if (GATT_CancelConnect(p_clcb->p_rcb->client_if, p_data->api_cancel_conn.remote_bda, TRUE))
+    {
+        bta_gattc_sm_execute(p_clcb, BTA_GATTC_INT_CANCEL_OPEN_OK_EVT, p_data);
+    }
+    else
+    {
+        if ( p_clcb->p_rcb->p_cback )
+        {
+            cb_data.status = BTA_GATT_ERROR;
+            (*p_clcb->p_rcb->p_cback)(BTA_GATTC_CANCEL_OPEN_EVT, &cb_data);
+        }
+    }
+}
+/*******************************************************************************
+**
+** Function         bta_gattc_conn
+**
+** Description      receive connection callback from stack
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_gattc_conn(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data)
+{
+    tBTA_GATTC_IF   gatt_if;
+    APPL_TRACE_DEBUG("bta_gattc_conn server cache state=%d",p_clcb->p_srcb->state);
+
+    if (p_data != NULL)
+    {
+        APPL_TRACE_DEBUG("bta_gattc_conn conn_id=%d",p_data->hdr.layer_specific);
+        p_clcb->bta_conn_id  = p_data->int_conn.hdr.layer_specific;
+
+        GATT_GetConnectionInfor(p_data->hdr.layer_specific,
+                                &gatt_if, p_clcb->bda, &p_clcb->transport);
+    }
+
+        p_clcb->p_srcb->connected = TRUE;
+
+        if (p_clcb->p_srcb->mtu == 0)
+            p_clcb->p_srcb->mtu = GATT_DEF_BLE_MTU_SIZE;
+
+        /* start database cache if needed */
+        if (p_clcb->p_srcb->p_srvc_cache == NULL ||
+            p_clcb->p_srcb->state != BTA_GATTC_SERV_IDLE)
+        {
+            if (p_clcb->p_srcb->state == BTA_GATTC_SERV_IDLE)
+            {
+                p_clcb->p_srcb->state = BTA_GATTC_SERV_LOAD;
+                if (bta_gattc_cache_load(p_clcb)) {
+                    bta_gattc_reset_discover_st(p_clcb->p_srcb, BTA_GATT_OK);
+                } else {
+                    p_clcb->p_srcb->state = BTA_GATTC_SERV_DISC;
+                     /* cache load failure, start discovery */
+                    bta_gattc_start_discover(p_clcb, NULL);
+                }
+            }
+            else /* cache is building */
+                p_clcb->state = BTA_GATTC_DISCOVER_ST;
+        }
+
+        else
+        {
+            /* a pending service handle change indication */
+            if (p_clcb->p_srcb->srvc_hdl_chg)
+            {
+                p_clcb->p_srcb->srvc_hdl_chg = FALSE;
+                /* start discovery */
+                bta_gattc_sm_execute(p_clcb, BTA_GATTC_INT_DISCOVER_EVT, NULL);
+            }
+        }
+
+        if (p_clcb->p_rcb)
+        {
+        /* there is no RM for GATT */
+        if (p_clcb->transport == BTA_TRANSPORT_BR_EDR)
+            bta_sys_conn_open(BTA_ID_GATTC, BTA_ALL_APP_ID, p_clcb->bda);
+
+        bta_gattc_send_open_cback(p_clcb->p_rcb,
+                                  BTA_GATT_OK,
+                                  p_clcb->bda,
+                                  p_clcb->bta_conn_id,
+                                  p_clcb->transport,
+                                  p_clcb->p_srcb->mtu);
+        }
+    }
+/*******************************************************************************
+**
+** Function         bta_gattc_close_fail
+**
+** Description      close a  connection.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_gattc_close_fail(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data)
+{
+    tBTA_GATTC           cb_data;
+
+    if ( p_clcb->p_rcb->p_cback )
+    {
+        memset(&cb_data, 0, sizeof(tBTA_GATTC));
+        cb_data.close.client_if = p_clcb->p_rcb->client_if;
+        cb_data.close.conn_id   = p_data->hdr.layer_specific;
+        bdcpy(cb_data.close.remote_bda, p_clcb->bda);
+        cb_data.close.status    = BTA_GATT_ERROR;
+        cb_data.close.reason    = BTA_GATT_CONN_NONE;
+
+        (*p_clcb->p_rcb->p_cback)(BTA_GATTC_CLOSE_EVT, &cb_data);
+    }
+}
+/*******************************************************************************
+**
+** Function         bta_gattc_api_close
+**
+** Description      close a GATTC connection.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_gattc_close(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data)
+{
+    tBTA_GATTC_CBACK    *p_cback = p_clcb->p_rcb->p_cback;
+    tBTA_GATTC_RCB      *p_clreg = p_clcb->p_rcb;
+    tBTA_GATTC           cb_data;
+
+    APPL_TRACE_DEBUG("bta_gattc_close conn_id=%d",p_clcb->bta_conn_id);
+
+    cb_data.close.client_if = p_clcb->p_rcb->client_if;
+    cb_data.close.conn_id   = p_clcb->bta_conn_id;
+    cb_data.close.reason    = p_clcb->reason;
+    cb_data.close.status    = p_clcb->status;
+    bdcpy(cb_data.close.remote_bda, p_clcb->bda);
+
+    if (p_clcb->transport == BTA_TRANSPORT_BR_EDR)
+        bta_sys_conn_close( BTA_ID_GATTC ,BTA_ALL_APP_ID, p_clcb->bda);
+
+    bta_gattc_clcb_dealloc(p_clcb);
+
+    if (p_data->hdr.event == BTA_GATTC_API_CLOSE_EVT)
+    {
+        cb_data.close.status = GATT_Disconnect(p_data->hdr.layer_specific);
+    }
+    else if (p_data->hdr.event == BTA_GATTC_INT_DISCONN_EVT)
+    {
+        cb_data.close.status = p_data->int_conn.reason;
+        cb_data.close.reason = p_data->int_conn.reason;
+    }
+
+    if(p_cback)
+        (* p_cback)(BTA_GATTC_CLOSE_EVT,   (tBTA_GATTC *)&cb_data);
+
+    if (p_clreg->num_clcb == 0 && p_clreg->dereg_pending)
+    {
+        bta_gattc_deregister_cmpl(p_clreg);
+    }
+}
+/*******************************************************************************
+**
+** Function         bta_gattc_reset_discover_st
+**
+** Description      when a SRCB finished discovery, tell all related clcb.
+**
+** Returns          None.
+**
+*******************************************************************************/
+void bta_gattc_reset_discover_st(tBTA_GATTC_SERV *p_srcb, tBTA_GATT_STATUS status)
+{
+    tBTA_GATTC_CB   *p_cb = &bta_gattc_cb;
+    UINT8 i;
+
+    for (i = 0; i < BTA_GATTC_CLCB_MAX; i ++)
+    {
+        if (p_cb->clcb[i].p_srcb == p_srcb)
+        {
+            p_cb->clcb[i].status = status;
+            bta_gattc_sm_execute(&p_cb->clcb[i], BTA_GATTC_DISCOVER_CMPL_EVT, NULL);
+        }
+    }
+}
+/*******************************************************************************
+**
+** Function         bta_gattc_disc_close
+**
+** Description      close a GATTC connection while in discovery state.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_gattc_disc_close(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data)
+{
+    APPL_TRACE_DEBUG("%s: Discovery cancel conn_id=%d", __func__,
+                     p_clcb->bta_conn_id);
+
+    if (p_clcb->disc_active)
+        bta_gattc_reset_discover_st(p_clcb->p_srcb, BTA_GATT_ERROR);
+    else
+        p_clcb->state = BTA_GATTC_CONN_ST;
+
+    // This function only gets called as the result of a BTA_GATTC_API_CLOSE_EVT
+    // while in the BTA_GATTC_DISCOVER_ST state. Once the state changes, the
+    // connection itself still needs to be closed to resolve the original event.
+    if (p_clcb->state == BTA_GATTC_CONN_ST)
+    {
+        APPL_TRACE_DEBUG("State is back to BTA_GATTC_CONN_ST. "
+                         "Trigger connection close");
+        bta_gattc_close(p_clcb, p_data);
+    }
+}
+/*******************************************************************************
+**
+** Function         bta_gattc_set_discover_st
+**
+** Description      when a SRCB start discovery, tell all related clcb and set
+**                  the state.
+**
+** Returns          None.
+**
+*******************************************************************************/
+void bta_gattc_set_discover_st(tBTA_GATTC_SERV *p_srcb)
+{
+    tBTA_GATTC_CB   *p_cb = &bta_gattc_cb;
+    UINT8   i;
+
+#if BLE_INCLUDED == TRUE
+    L2CA_EnableUpdateBleConnParams(p_srcb->server_bda, FALSE);
+#endif
+    for (i = 0; i < BTA_GATTC_CLCB_MAX; i ++)
+    {
+        if (p_cb->clcb[i].p_srcb == p_srcb)
+        {
+            p_cb->clcb[i].status = BTA_GATT_OK;
+            p_cb->clcb[i].state = BTA_GATTC_DISCOVER_ST;
+        }
+    }
+}
+/*******************************************************************************
+**
+** Function         bta_gattc_restart_discover
+**
+** Description      process service change in discovery state, mark up the auto
+**                  update flag and set status to be discovery cancel for current
+**                  discovery.
+**
+** Returns          None.
+**
+*******************************************************************************/
+void bta_gattc_restart_discover(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data)
+{
+    UNUSED(p_data);
+
+    p_clcb->status      = BTA_GATT_CANCEL;
+    p_clcb->auto_update = BTA_GATTC_DISC_WAITING;
+}
+
+/*******************************************************************************
+**
+** Function         bta_gattc_cfg_mtu
+**
+** Description      Configure MTU size on the GATT connection.
+**
+** Returns          None.
+**
+*******************************************************************************/
+void bta_gattc_cfg_mtu(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data)
+{
+    tBTA_GATT_STATUS    status;
+
+    if (bta_gattc_enqueue(p_clcb, p_data))
+    {
+        status = GATTC_ConfigureMTU (p_clcb->bta_conn_id, p_data->api_mtu.mtu);
+
+        /* if failed, return callback here */
+        if (status != GATT_SUCCESS && status != GATT_CMD_STARTED)
+        {
+            /* Dequeue the data, if it was enqueued */
+            if (p_clcb->p_q_cmd == p_data)
+                p_clcb->p_q_cmd = NULL;
+
+            bta_gattc_cmpl_sendmsg(p_clcb->bta_conn_id, GATTC_OPTYPE_CONFIG, status, NULL);
+        }
+    }
+}
+/*******************************************************************************
+**
+** Function         bta_gattc_start_discover
+**
+** Description      Start a discovery on server.
+**
+** Returns          None.
+**
+*******************************************************************************/
+void bta_gattc_start_discover(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data)
+{
+    UNUSED(p_data);
+
+    APPL_TRACE_DEBUG("bta_gattc_start_discover conn_id=%d p_clcb->p_srcb->state = %d ",
+        p_clcb->bta_conn_id, p_clcb->p_srcb->state);
+
+    if (((p_clcb->p_q_cmd == NULL || p_clcb->auto_update == BTA_GATTC_REQ_WAITING) &&
+        p_clcb->p_srcb->state == BTA_GATTC_SERV_IDLE) ||
+        p_clcb->p_srcb->state == BTA_GATTC_SERV_DISC)
+    /* no pending operation, start discovery right away */
+    {
+        p_clcb->auto_update = BTA_GATTC_NO_SCHEDULE;
+
+        if (p_clcb->p_srcb != NULL)
+        {
+            /* clear the service change mask */
+            p_clcb->p_srcb->srvc_hdl_chg = FALSE;
+            p_clcb->p_srcb->update_count = 0;
+            p_clcb->p_srcb->state = BTA_GATTC_SERV_DISC_ACT;
+
+            if (p_clcb->transport == BTA_TRANSPORT_LE)
+                L2CA_EnableUpdateBleConnParams(p_clcb->p_srcb->server_bda, FALSE);
+
+            /* set all srcb related clcb into discovery ST */
+            bta_gattc_set_discover_st(p_clcb->p_srcb);
+
+            if ((p_clcb->status = bta_gattc_init_cache(p_clcb->p_srcb)) == BTA_GATT_OK)
+            {
+                p_clcb->status = bta_gattc_discover_pri_service(p_clcb->bta_conn_id,
+                                                               p_clcb->p_srcb, GATT_DISC_SRVC_ALL);
+            }
+            if (p_clcb->status != BTA_GATT_OK)
+            {
+                APPL_TRACE_ERROR("discovery on server failed");
+                bta_gattc_reset_discover_st(p_clcb->p_srcb, p_clcb->status);
+            }
+            else
+                p_clcb->disc_active = TRUE;
+        }
+        else
+        {
+            APPL_TRACE_ERROR("unknown device, can not start discovery");
+        }
+    }
+    /* pending operation, wait until it finishes */
+    else
+    {
+        p_clcb->auto_update = BTA_GATTC_DISC_WAITING;
+
+        if (p_clcb->p_srcb->state == BTA_GATTC_SERV_IDLE)
+            p_clcb->state = BTA_GATTC_CONN_ST; /* set clcb state */
+    }
+
+}
+/*******************************************************************************
+**
+** Function         bta_gattc_disc_cmpl
+**
+** Description      discovery on server is finished
+**
+** Returns          None.
+**
+*******************************************************************************/
+void bta_gattc_disc_cmpl(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data)
+{
+    tBTA_GATTC_DATA *p_q_cmd = p_clcb->p_q_cmd;
+    UNUSED(p_data);
+
+    APPL_TRACE_DEBUG("bta_gattc_disc_cmpl conn_id=%d",p_clcb->bta_conn_id);
+
+#if BLE_INCLUDED == TRUE
+    if(p_clcb->transport == BTA_TRANSPORT_LE)
+        L2CA_EnableUpdateBleConnParams(p_clcb->p_srcb->server_bda, TRUE);
+#endif
+    p_clcb->p_srcb->state = BTA_GATTC_SERV_IDLE;
+    p_clcb->disc_active = FALSE;
+
+    if (p_clcb->status != GATT_SUCCESS)
+    {
+        /* clean up cache */
+        if(p_clcb->p_srcb && p_clcb->p_srcb->p_srvc_cache) {
+            list_free(p_clcb->p_srcb->p_srvc_cache);
+            p_clcb->p_srcb->p_srvc_cache = NULL;
+        }
+
+        /* used to reset cache in application */
+        bta_gattc_cache_reset(p_clcb->p_srcb->server_bda);
+    }
+    if (p_clcb->p_srcb && p_clcb->p_srcb->p_srvc_list) {
+        /* release pending attribute list buffer */
+        osi_free_and_reset((void **)&p_clcb->p_srcb->p_srvc_list);
+    }
+
+    if (p_clcb->auto_update == BTA_GATTC_DISC_WAITING)
+    {
+        /* start discovery again */
+        bta_gattc_sm_execute(p_clcb, BTA_GATTC_INT_DISCOVER_EVT, NULL);
+    }
+    /* get any queued command to proceed */
+    else if (p_q_cmd != NULL)
+    {
+        p_clcb->p_q_cmd = NULL;
+        /* execute pending operation of link block still present */
+        if (l2cu_find_lcb_by_bd_addr(p_clcb->p_srcb->server_bda, BT_TRANSPORT_LE) != NULL) {
+            bta_gattc_sm_execute(p_clcb, p_q_cmd->hdr.event, p_q_cmd);
+        }
+        /* if the command executed requeued the cmd, we don't
+         * want to free the underlying buffer that's being
+         * referenced by p_clcb->p_q_cmd
+         */
+        if (p_q_cmd != p_clcb->p_q_cmd)
+            osi_free_and_reset((void **)&p_q_cmd);
+    }
+}
+/*******************************************************************************
+**
+** Function         bta_gattc_read
+**
+** Description      Read an attribute
+**
+** Returns          None.
+**
+*******************************************************************************/
+void bta_gattc_read(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data)
+{
+    if (!bta_gattc_enqueue(p_clcb, p_data))
+        return;
+
+    tGATT_READ_PARAM    read_param;
+    memset (&read_param, 0 ,sizeof(tGATT_READ_PARAM));
+    read_param.by_handle.handle = p_data->api_read.handle;
+    read_param.by_handle.auth_req = p_data->api_read.auth_req;
+
+    tBTA_GATT_STATUS status = GATTC_Read(p_clcb->bta_conn_id, GATT_READ_BY_HANDLE, &read_param);
+
+    /* read fail */
+    if (status != BTA_GATT_OK)
+    {
+        /* Dequeue the data, if it was enqueued */
+        if (p_clcb->p_q_cmd == p_data)
+            p_clcb->p_q_cmd = NULL;
+
+        bta_gattc_cmpl_sendmsg(p_clcb->bta_conn_id, GATTC_OPTYPE_READ, status, NULL);
+    }
+}
+/*******************************************************************************
+**
+** Function         bta_gattc_read_multi
+**
+** Description      read multiple
+**
+** Returns          None.
+*********************************************************************************/
+void bta_gattc_read_multi(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data)
+{
+    tBTA_GATT_STATUS    status = BTA_GATT_OK;
+    tGATT_READ_PARAM    read_param;
+
+    if (bta_gattc_enqueue(p_clcb, p_data))
+    {
+        memset(&read_param, 0, sizeof(tGATT_READ_PARAM));
+
+        if (status == BTA_GATT_OK)
+        {
+            read_param.read_multiple.num_handles = p_data->api_read_multi.num_attr;
+            read_param.read_multiple.auth_req = p_data->api_read_multi.auth_req;
+            memcpy(&read_param.read_multiple.handles, p_data->api_read_multi.handles,
+                                        sizeof(UINT16) * p_data->api_read_multi.num_attr);
+
+            status = GATTC_Read(p_clcb->bta_conn_id, GATT_READ_MULTIPLE, &read_param);
+        }
+
+        /* read fail */
+        if (status != BTA_GATT_OK)
+        {
+            /* Dequeue the data, if it was enqueued */
+            if (p_clcb->p_q_cmd == p_data)
+                p_clcb->p_q_cmd = NULL;
+
+            bta_gattc_cmpl_sendmsg(p_clcb->bta_conn_id, GATTC_OPTYPE_READ, status, NULL);
+        }
+    }
+}
+/*******************************************************************************
+**
+** Function         bta_gattc_write
+**
+** Description      Write an attribute
+**
+** Returns          None.
+**
+*******************************************************************************/
+void bta_gattc_write(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data)
+{
+    if (!bta_gattc_enqueue(p_clcb, p_data))
+        return;
+
+    tBTA_GATT_STATUS    status = BTA_GATT_OK;
+    tGATT_VALUE attr;
+
+    attr.conn_id = p_clcb->bta_conn_id;
+    attr.handle = p_data->api_write.handle;
+    attr.offset = p_data->api_write.offset;
+    attr.len    = p_data->api_write.len;
+    attr.auth_req = p_data->api_write.auth_req;
+
+    if (p_data->api_write.p_value)
+        memcpy(attr.value, p_data->api_write.p_value, p_data->api_write.len);
+
+    status = GATTC_Write(p_clcb->bta_conn_id, p_data->api_write.write_type, &attr);
+
+    /* write fail */
+    if (status != BTA_GATT_OK)
+    {
+        /* Dequeue the data, if it was enqueued */
+        if (p_clcb->p_q_cmd == p_data)
+            p_clcb->p_q_cmd = NULL;
+
+        bta_gattc_cmpl_sendmsg(p_clcb->bta_conn_id, GATTC_OPTYPE_WRITE, status, NULL);
+    }
+}
+/*******************************************************************************
+**
+** Function         bta_gattc_execute
+**
+** Description      send execute write
+**
+** Returns          None.
+*********************************************************************************/
+void bta_gattc_execute(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data)
+{
+    tBTA_GATT_STATUS    status;
+
+    if (bta_gattc_enqueue(p_clcb, p_data))
+    {
+        status = GATTC_ExecuteWrite(p_clcb->bta_conn_id, p_data->api_exec.is_execute);
+
+        if (status != BTA_GATT_OK)
+        {
+            /* Dequeue the data, if it was enqueued */
+            if (p_clcb->p_q_cmd == p_data)
+                p_clcb->p_q_cmd = NULL;
+
+            bta_gattc_cmpl_sendmsg(p_clcb->bta_conn_id, GATTC_OPTYPE_EXE_WRITE, status, NULL);
+        }
+    }
+}
+/*******************************************************************************
+**
+** Function         bta_gattc_confirm
+**
+** Description      send handle value confirmation
+**
+** Returns          None.
+**
+*******************************************************************************/
+void bta_gattc_confirm(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data)
+{
+    UINT16 handle = p_data->api_confirm.handle;
+
+    if (GATTC_SendHandleValueConfirm(p_data->api_confirm.hdr.layer_specific, handle)
+        != GATT_SUCCESS) {
+            APPL_TRACE_ERROR("bta_gattc_confirm to handle [0x%04x] failed", handle);
+    } else {
+        /* if over BR_EDR, inform PM for mode change */
+        if (p_clcb->transport == BTA_TRANSPORT_BR_EDR) {
+            bta_sys_busy(BTA_ID_GATTC, BTA_ALL_APP_ID, p_clcb->bda);
+            bta_sys_idle(BTA_ID_GATTC, BTA_ALL_APP_ID, p_clcb->bda);
+        }
+    }
+}
+/*******************************************************************************
+**
+** Function         bta_gattc_read_cmpl
+**
+** Description      read complete
+**
+** Returns          None.
+**
+*******************************************************************************/
+void bta_gattc_read_cmpl(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_OP_CMPL *p_data)
+{
+    UINT8               event;
+    tBTA_GATTC          cb_data;
+    tBTA_GATT_UNFMT     read_value;
+
+    memset(&cb_data, 0, sizeof(tBTA_GATTC));
+    memset(&read_value, 0, sizeof(tBTA_GATT_UNFMT));
+
+    cb_data.read.status     = p_data->status;
+
+    if (p_data->p_cmpl != NULL && p_data->status == BTA_GATT_OK)
+    {
+        cb_data.read.handle = p_data->p_cmpl->att_value.handle;
+
+        read_value.len = p_data->p_cmpl->att_value.len;
+        read_value.p_value = p_data->p_cmpl->att_value.value;
+        cb_data.read.p_value = &read_value;
+    } else {
+        cb_data.read.handle = p_clcb->p_q_cmd->api_read.handle;
+    }
+
+    event = p_clcb->p_q_cmd->api_read.cmpl_evt;
+    cb_data.read.conn_id = p_clcb->bta_conn_id;
+
+    osi_free_and_reset((void **)&p_clcb->p_q_cmd);
+    /* read complete, callback */
+    ( *p_clcb->p_rcb->p_cback)(event, (tBTA_GATTC *)&cb_data);
+
+}
+/*******************************************************************************
+**
+** Function         bta_gattc_write_cmpl
+**
+** Description      write complete
+**
+** Returns          None.
+**
+*******************************************************************************/
+void bta_gattc_write_cmpl(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_OP_CMPL *p_data)
+{
+    tBTA_GATTC      cb_data = {0};
+    UINT8          event;
+
+    memset(&cb_data, 0, sizeof(tBTA_GATTC));
+
+    cb_data.write.status     = p_data->status;
+    cb_data.write.handle = p_data->p_cmpl->att_value.handle;
+
+    if (p_clcb->p_q_cmd->api_write.hdr.event == BTA_GATTC_API_WRITE_EVT &&
+        p_clcb->p_q_cmd->api_write.write_type == BTA_GATTC_WRITE_PREPARE)
+
+        event = BTA_GATTC_PREP_WRITE_EVT;
+
+    else
+        event = p_clcb->p_q_cmd->api_write.cmpl_evt;
+
+    osi_free_and_reset((void **)&p_clcb->p_q_cmd);
+    cb_data.write.conn_id = p_clcb->bta_conn_id;
+    /* write complete, callback */
+    ( *p_clcb->p_rcb->p_cback)(event, (tBTA_GATTC *)&cb_data);
+
+}
+/*******************************************************************************
+**
+** Function         bta_gattc_exec_cmpl
+**
+** Description      execute write complete
+**
+** Returns          None.
+**
+*******************************************************************************/
+void bta_gattc_exec_cmpl(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_OP_CMPL *p_data)
+{
+    tBTA_GATTC          cb_data;
+
+    osi_free_and_reset((void **)&p_clcb->p_q_cmd);
+    p_clcb->status      = BTA_GATT_OK;
+
+    /* execute complete, callback */
+    cb_data.exec_cmpl.conn_id = p_clcb->bta_conn_id;
+    cb_data.exec_cmpl.status = p_data->status;
+
+    ( *p_clcb->p_rcb->p_cback)(BTA_GATTC_EXEC_EVT,  &cb_data);
+
+}
+
+/*******************************************************************************
+**
+** Function         bta_gattc_cfg_mtu_cmpl
+**
+** Description      configure MTU operation complete
+**
+** Returns          None.
+**
+*******************************************************************************/
+void bta_gattc_cfg_mtu_cmpl(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_OP_CMPL *p_data)
+{
+    tBTA_GATTC          cb_data;
+
+    osi_free_and_reset((void **)&p_clcb->p_q_cmd);
+
+    if (p_data->p_cmpl  &&  p_data->status == BTA_GATT_OK)
+        p_clcb->p_srcb->mtu  = p_data->p_cmpl->mtu;
+
+    /* configure MTU complete, callback */
+    p_clcb->status          = p_data->status;
+    cb_data.cfg_mtu.conn_id = p_clcb->bta_conn_id;
+    cb_data.cfg_mtu.status  = p_data->status;
+    cb_data.cfg_mtu.mtu     = p_clcb->p_srcb->mtu;
+
+    (*p_clcb->p_rcb->p_cback) (BTA_GATTC_CFG_MTU_EVT,  &cb_data);
+
+}
+/*******************************************************************************
+**
+** Function         bta_gattc_op_cmpl
+**
+** Description      operation completed.
+**
+** Returns          None.
+**
+*******************************************************************************/
+void  bta_gattc_op_cmpl(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data)
+{
+    UINT8           op = (UINT8)p_data->op_cmpl.op_code;
+    UINT8           mapped_op = 0;
+
+    APPL_TRACE_DEBUG("bta_gattc_op_cmpl op = %d", op);
+
+    if (op == GATTC_OPTYPE_INDICATION || op == GATTC_OPTYPE_NOTIFICATION)
+    {
+        APPL_TRACE_ERROR("unexpected operation, ignored");
+    }
+    else if (op >= GATTC_OPTYPE_READ)
+    {
+        if (p_clcb->p_q_cmd == NULL)
+        {
+            APPL_TRACE_ERROR("No pending command");
+            return;
+        }
+        if (p_clcb->p_q_cmd->hdr.event != bta_gattc_opcode_to_int_evt[op - GATTC_OPTYPE_READ])
+        {
+            mapped_op = p_clcb->p_q_cmd->hdr.event - BTA_GATTC_API_READ_EVT + GATTC_OPTYPE_READ;
+            if ( mapped_op > GATTC_OPTYPE_INDICATION)   mapped_op = 0;
+
+#if (BT_TRACE_VERBOSE == TRUE)
+            APPL_TRACE_ERROR("expect op:(%s :0x%04x), receive unexpected operation (%s).",
+                                bta_gattc_op_code_name[mapped_op] , p_clcb->p_q_cmd->hdr.event,
+                                bta_gattc_op_code_name[op]);
+#else
+            APPL_TRACE_ERROR("expect op:(%u :0x%04x), receive unexpected operation (%u).",
+                                mapped_op , p_clcb->p_q_cmd->hdr.event, op);
+#endif
+            return;
+        }
+
+        /* discard responses if service change indication is received before operation completed */
+        if (p_clcb->auto_update == BTA_GATTC_DISC_WAITING && p_clcb->p_srcb->srvc_hdl_chg)
+        {
+            APPL_TRACE_DEBUG("Discard all responses when service change indication is received.");
+            p_data->op_cmpl.status = GATT_ERROR;
+        }
+
+        /* service handle change void the response, discard it */
+        if (op == GATTC_OPTYPE_READ)
+            bta_gattc_read_cmpl(p_clcb, &p_data->op_cmpl);
+
+        else if (op == GATTC_OPTYPE_WRITE)
+            bta_gattc_write_cmpl(p_clcb, &p_data->op_cmpl);
+
+        else if (op == GATTC_OPTYPE_EXE_WRITE)
+            bta_gattc_exec_cmpl(p_clcb, &p_data->op_cmpl);
+
+        else if (op == GATTC_OPTYPE_CONFIG)
+            bta_gattc_cfg_mtu_cmpl(p_clcb, &p_data->op_cmpl);
+
+        if (p_clcb->auto_update == BTA_GATTC_DISC_WAITING)
+        {
+            p_clcb->auto_update = BTA_GATTC_REQ_WAITING;
+            bta_gattc_sm_execute(p_clcb, BTA_GATTC_INT_DISCOVER_EVT, NULL);
+        }
+    }
+}
+/*******************************************************************************
+**
+** Function         bta_gattc_op_cmpl
+**
+** Description      operation completed.
+**
+** Returns          None.
+**
+*******************************************************************************/
+void  bta_gattc_ignore_op_cmpl(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data)
+{
+    UNUSED(p_clcb);
+
+    /* receive op complete when discovery is started, ignore the response,
+        and wait for discovery finish and resent */
+    APPL_TRACE_DEBUG("bta_gattc_ignore_op_cmpl op = %d", p_data->hdr.layer_specific);
+
+}
+/*******************************************************************************
+**
+** Function         bta_gattc_search
+**
+** Description      start a search in the local server cache
+**
+** Returns          None.
+**
+*******************************************************************************/
+void bta_gattc_search(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data)
+{
+    tBTA_GATT_STATUS    status = GATT_INTERNAL_ERROR;
+    tBTA_GATTC cb_data;
+    APPL_TRACE_DEBUG("bta_gattc_search conn_id=%d",p_clcb->bta_conn_id);
+    if (p_clcb->p_srcb && p_clcb->p_srcb->p_srvc_cache)
+    {
+        status = BTA_GATT_OK;
+        /* search the local cache of a server device */
+        bta_gattc_search_service(p_clcb, p_data->api_search.p_srvc_uuid);
+    }
+    cb_data.search_cmpl.status  = status;
+    cb_data.search_cmpl.conn_id = p_clcb->bta_conn_id;
+
+    /* end of search or no server cache available */
+    ( *p_clcb->p_rcb->p_cback)(BTA_GATTC_SEARCH_CMPL_EVT,  &cb_data);
+}
+/*******************************************************************************
+**
+** Function         bta_gattc_q_cmd
+**
+** Description      enqueue a command into control block, usually because discovery
+**                  operation is busy.
+**
+** Returns          None.
+**
+*******************************************************************************/
+void bta_gattc_q_cmd(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data)
+{
+    bta_gattc_enqueue(p_clcb, p_data);
+}
+
+/*******************************************************************************
+**
+** Function         bta_gattc_fail
+**
+** Description      report API call failure back to apps
+**
+** Returns          None.
+**
+*******************************************************************************/
+void bta_gattc_fail(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data)
+{
+    UNUSED(p_data);
+
+    if (p_clcb->status == BTA_GATT_OK)
+    {
+        APPL_TRACE_ERROR("operation not supported at current state [%d]", p_clcb->state);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_gattc_deregister_cmpl
+**
+** Description      De-Register a GATT client application with BTA completed.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_gattc_deregister_cmpl(tBTA_GATTC_RCB *p_clreg)
+{
+    tBTA_GATTC_CB       *p_cb = &bta_gattc_cb;
+    tBTA_GATTC_IF       client_if = p_clreg->client_if;
+    tBTA_GATTC          cb_data;
+    tBTA_GATTC_CBACK    *p_cback = p_clreg->p_cback;
+
+    memset(&cb_data, 0, sizeof(tBTA_GATTC));
+
+    GATT_Deregister(p_clreg->client_if);
+    memset(p_clreg, 0, sizeof(tBTA_GATTC_RCB));
+
+    cb_data.reg_oper.client_if = client_if;
+    cb_data.reg_oper.status    = BTA_GATT_OK;
+
+    if (p_cback)
+        /* callback with de-register event */
+        (*p_cback)(BTA_GATTC_DEREG_EVT,  (tBTA_GATTC *)&cb_data);
+
+    if (bta_gattc_num_reg_app() == 0 && p_cb->state == BTA_GATTC_STATE_DISABLING)
+    {
+        p_cb->state = BTA_GATTC_STATE_DISABLED;
+    }
+}
+/*******************************************************************************
+**
+** Function         bta_gattc_conn_cback
+**
+** Description      callback functions to GATT client stack.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_gattc_conn_cback(tGATT_IF gattc_if, BD_ADDR bda, UINT16 conn_id,
+                                 BOOLEAN connected, tGATT_DISCONN_REASON reason,
+                                 tBT_TRANSPORT transport)
+{
+    if (reason != 0) {
+        APPL_TRACE_WARNING("%s() - cif=%d connected=%d conn_id=%d reason=0x%04x",
+                           __func__, gattc_if, connected, conn_id, reason);
+    }
+
+    bt_bdaddr_t bdaddr;
+    bdcpy(bdaddr.address, bda);
+    if (connected)
+        btif_debug_conn_state(bdaddr, BTIF_DEBUG_CONNECTED, GATT_CONN_UNKNOWN);
+    else
+        btif_debug_conn_state(bdaddr, BTIF_DEBUG_DISCONNECTED, reason);
+
+    tBTA_GATTC_DATA *p_buf =
+        (tBTA_GATTC_DATA *)osi_calloc(sizeof(tBTA_GATTC_DATA));
+    p_buf->int_conn.hdr.event = connected ? BTA_GATTC_INT_CONN_EVT :
+                                            BTA_GATTC_INT_DISCONN_EVT;
+    p_buf->int_conn.hdr.layer_specific = conn_id;
+    p_buf->int_conn.client_if = gattc_if;
+    p_buf->int_conn.role = L2CA_GetBleConnRole(bda);
+    p_buf->int_conn.reason = reason;
+    p_buf->int_conn.transport = transport;
+    bdcpy(p_buf->int_conn.remote_bda, bda);
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         bta_gattc_enc_cmpl_cback
+**
+** Description      encryption complete callback function to GATT client stack.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_gattc_enc_cmpl_cback(tGATT_IF gattc_if, BD_ADDR bda)
+{
+    tBTA_GATTC_CLCB *p_clcb =
+        bta_gattc_find_clcb_by_cif(gattc_if, bda, BTA_GATT_TRANSPORT_LE);
+
+    if (p_clcb == NULL)
+        return;
+
+#if (defined BTA_HH_LE_INCLUDED && BTA_HH_LE_INCLUDED == TRUE)
+    /* filter this event just for BTA HH LE GATT client,
+       In the future, if we want to enable encryption complete event
+       for all GATT clients, we can remove this code */
+    if (!bta_hh_le_is_hh_gatt_if(gattc_if))
+    {
+        return;
+    }
+#endif
+
+    APPL_TRACE_DEBUG("%s: cif = %d", __func__, gattc_if);
+
+    tBTA_GATTC_DATA *p_buf =
+        (tBTA_GATTC_DATA *)osi_calloc(sizeof(tBTA_GATTC_DATA));
+    p_buf->enc_cmpl.hdr.event = BTA_GATTC_ENC_CMPL_EVT;
+    p_buf->enc_cmpl.hdr.layer_specific = p_clcb->bta_conn_id;
+    p_buf->enc_cmpl.client_if = gattc_if;
+    bdcpy(p_buf->enc_cmpl.remote_bda, bda);
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         bta_gattc_process_api_refresh
+**
+** Description      process refresh API to delete cache and start a new discovery
+**                  if currently connected.
+**
+** Returns          None.
+**
+*******************************************************************************/
+void bta_gattc_process_api_refresh(tBTA_GATTC_CB *p_cb, tBTA_GATTC_DATA * p_msg)
+{
+    tBTA_GATTC_SERV *p_srvc_cb = bta_gattc_find_srvr_cache(p_msg->api_conn.remote_bda);
+    tBTA_GATTC_CLCB      *p_clcb = &bta_gattc_cb.clcb[0];
+    BOOLEAN         found = FALSE;
+    UINT8           i;
+    UNUSED(p_cb);
+
+    if (p_srvc_cb != NULL)
+    {
+        /* try to find a CLCB */
+        if (p_srvc_cb->connected && p_srvc_cb->num_clcb != 0)
+        {
+            for (i = 0; i < BTA_GATTC_CLCB_MAX; i ++, p_clcb ++)
+            {
+                if (p_clcb->in_use && p_clcb->p_srcb == p_srvc_cb)
+                {
+                    found = TRUE;
+                    break;
+                }
+            }
+            if (found)
+            {
+                bta_gattc_sm_execute(p_clcb, BTA_GATTC_INT_DISCOVER_EVT, NULL);
+                return;
+            }
+        }
+        /* in all other cases, mark it and delete the cache */
+        if (p_srvc_cb->p_srvc_cache != NULL) {
+            list_free(p_srvc_cb->p_srvc_cache);
+            p_srvc_cb->p_srvc_cache = NULL;
+        }
+    }
+    /* used to reset cache in application */
+    bta_gattc_cache_reset(p_msg->api_conn.remote_bda);
+
+}
+/*******************************************************************************
+**
+** Function         bta_gattc_process_srvc_chg_ind
+**
+** Description      process service change indication.
+**
+** Returns          None.
+**
+*******************************************************************************/
+BOOLEAN bta_gattc_process_srvc_chg_ind(UINT16 conn_id,
+                                       tBTA_GATTC_RCB      *p_clrcb,
+                                       tBTA_GATTC_SERV     *p_srcb,
+                                       tBTA_GATTC_CLCB      *p_clcb,
+                                       tBTA_GATTC_NOTIFY    *p_notify,
+                                       tGATT_VALUE *att_value)
+{
+    tBT_UUID        gattp_uuid, srvc_chg_uuid;
+    BOOLEAN         processed = FALSE;
+    UINT8           i;
+
+    gattp_uuid.len = 2;
+    gattp_uuid.uu.uuid16 = UUID_SERVCLASS_GATT_SERVER;
+
+    srvc_chg_uuid.len = 2;
+    srvc_chg_uuid.uu.uuid16 = GATT_UUID_GATT_SRV_CHGD;
+
+    const tBTA_GATTC_CHARACTERISTIC *p_char = bta_gattc_get_characteristic_srcb(p_srcb, p_notify->handle);
+    if (p_char && bta_gattc_uuid_compare(&p_char->service->uuid, &gattp_uuid, TRUE) &&
+        bta_gattc_uuid_compare(&p_char->uuid, &srvc_chg_uuid, TRUE))
+    {
+        if (att_value->len != BTA_GATTC_SERVICE_CHANGED_LEN) {
+            APPL_TRACE_ERROR("%s: received malformed service changed indication, skipping", __func__);
+            return FALSE;
+        }
+
+        UINT8 *p = att_value->value;
+        UINT16 s_handle = ((UINT16)(*(p    )) + (((UINT16)(*(p + 1))) << 8));
+        UINT16 e_handle = ((UINT16)(*(p + 2)) + (((UINT16)(*(p + 3))) << 8));
+
+        APPL_TRACE_ERROR("%s: service changed s_handle:0x%04x e_handle:0x%04x",
+                         __func__, s_handle, e_handle);
+
+        processed = TRUE;
+        /* mark service handle change pending */
+        p_srcb->srvc_hdl_chg = TRUE;
+        /* clear up all notification/indication registration */
+        bta_gattc_clear_notif_registration(p_srcb, conn_id, s_handle, e_handle);
+        /* service change indication all received, do discovery update */
+        if ( ++ p_srcb->update_count == bta_gattc_num_reg_app())
+        {
+            /* not an opened connection; or connection busy */
+            /* search for first available clcb and start discovery */
+            if (p_clcb == NULL || (p_clcb && p_clcb->p_q_cmd != NULL))
+            {
+                for (i = 0 ; i < BTA_GATTC_CLCB_MAX; i ++)
+                {
+                    if (bta_gattc_cb.clcb[i].in_use &&
+                        bta_gattc_cb.clcb[i].p_srcb == p_srcb &&
+                        bta_gattc_cb.clcb[i].p_q_cmd == NULL)
+                    {
+                        p_clcb = &bta_gattc_cb.clcb[i];
+                        break;
+                    }
+                }
+            }
+            /* send confirmation here if this is an indication, it should always be */
+            GATTC_SendHandleValueConfirm(conn_id, att_value->handle);
+
+            /* if connection available, refresh cache by doing discovery now */
+            if (p_clcb != NULL)
+                bta_gattc_sm_execute(p_clcb, BTA_GATTC_INT_DISCOVER_EVT, NULL);
+        }
+        /* notify applicationf or service change */
+        if (p_clrcb->p_cback != NULL)
+        {
+           (* p_clrcb->p_cback)(BTA_GATTC_SRVC_CHG_EVT, (tBTA_GATTC *)p_srcb->server_bda);
+        }
+
+    }
+
+    return processed;
+
+}
+/*******************************************************************************
+**
+** Function         bta_gattc_proc_other_indication
+**
+** Description      process all non-service change indication/notification.
+**
+** Returns          None.
+**
+*******************************************************************************/
+void bta_gattc_proc_other_indication(tBTA_GATTC_CLCB *p_clcb, UINT8 op,
+                                     tGATT_CL_COMPLETE *p_data,
+                                     tBTA_GATTC_NOTIFY *p_notify)
+{
+    APPL_TRACE_DEBUG("bta_gattc_proc_other_indication check \
+                       p_data->att_value.handle=%d p_data->handle=%d",
+                       p_data->att_value.handle, p_data->handle);
+    APPL_TRACE_DEBUG("is_notify", p_notify->is_notify);
+
+    p_notify->is_notify = (op == GATTC_OPTYPE_INDICATION) ? FALSE : TRUE;
+    p_notify->len = p_data->att_value.len;
+    bdcpy(p_notify->bda, p_clcb->bda);
+    memcpy(p_notify->value, p_data->att_value.value, p_data->att_value.len);
+    p_notify->conn_id = p_clcb->bta_conn_id;
+
+    if (p_clcb->p_rcb->p_cback)
+        (*p_clcb->p_rcb->p_cback)(BTA_GATTC_NOTIF_EVT,  (tBTA_GATTC *)p_notify);
+
+}
+/*******************************************************************************
+**
+** Function         bta_gattc_process_indicate
+**
+** Description      process indication/notification.
+**
+** Returns          None.
+**
+*******************************************************************************/
+void bta_gattc_process_indicate(UINT16 conn_id, tGATTC_OPTYPE op, tGATT_CL_COMPLETE *p_data)
+{
+    UINT16              handle = p_data->att_value.handle;
+    tBTA_GATTC_CLCB     *p_clcb ;
+    tBTA_GATTC_RCB      *p_clrcb = NULL;
+    tBTA_GATTC_SERV     *p_srcb = NULL;
+    tBTA_GATTC_NOTIFY   notify;
+    BD_ADDR             remote_bda;
+    tBTA_GATTC_IF       gatt_if;
+    tBTA_TRANSPORT transport;
+
+    if (!GATT_GetConnectionInfor(conn_id, &gatt_if, remote_bda, &transport))
+    {
+        APPL_TRACE_ERROR("%s indication/notif for unknown app", __func__);
+        if (op == GATTC_OPTYPE_INDICATION)
+            GATTC_SendHandleValueConfirm(conn_id, handle);
+        return;
+    }
+
+    if ((p_clrcb = bta_gattc_cl_get_regcb(gatt_if)) == NULL)
+    {
+        APPL_TRACE_ERROR("%s indication/notif for unregistered app", __func__);
+        if (op == GATTC_OPTYPE_INDICATION)
+            GATTC_SendHandleValueConfirm(conn_id, handle);
+        return;
+    }
+
+    if ((p_srcb = bta_gattc_find_srcb(remote_bda)) == NULL)
+    {
+        APPL_TRACE_ERROR("%s indication/notif for unknown device, ignore", __func__);
+        if (op == GATTC_OPTYPE_INDICATION)
+            GATTC_SendHandleValueConfirm(conn_id, handle);
+        return;
+    }
+
+    p_clcb = bta_gattc_find_clcb_by_conn_id(conn_id);
+
+    notify.handle = handle;
+    /* if non-service change indication/notification, forward to application */
+    if (!bta_gattc_process_srvc_chg_ind(conn_id, p_clrcb, p_srcb, p_clcb, &notify, &p_data->att_value))
+    {
+        /* if app registered for the notification */
+        if (bta_gattc_check_notif_registry(p_clrcb, p_srcb, &notify))
+        {
+            /* connection not open yet */
+            if (p_clcb == NULL)
+            {
+                p_clcb = bta_gattc_clcb_alloc(gatt_if, remote_bda, transport);
+
+                if (p_clcb == NULL) {
+                    APPL_TRACE_ERROR("No resources");
+                    return;
+                }
+
+                p_clcb->bta_conn_id = conn_id;
+                p_clcb->transport   = transport;
+
+                bta_gattc_sm_execute(p_clcb, BTA_GATTC_INT_CONN_EVT, NULL);
+            }
+
+            if (p_clcb != NULL)
+                bta_gattc_proc_other_indication(p_clcb, op, p_data, &notify);
+        }
+        /* no one intersted and need ack? */
+        else if (op == GATTC_OPTYPE_INDICATION)
+        {
+            APPL_TRACE_DEBUG("%s no one interested, ack now", __func__);
+            GATTC_SendHandleValueConfirm(conn_id, handle);
+        }
+    }
+}
+/*******************************************************************************
+**
+** Function         bta_gattc_cmpl_cback
+**
+** Description      client operation complete callback register with BTE GATT.
+**
+** Returns          None.
+**
+*******************************************************************************/
+static void  bta_gattc_cmpl_cback(UINT16 conn_id, tGATTC_OPTYPE op, tGATT_STATUS status,
+                                  tGATT_CL_COMPLETE *p_data)
+{
+    tBTA_GATTC_CLCB     *p_clcb;
+    APPL_TRACE_DEBUG("bta_gattc_cmpl_cback: conn_id = %d op = %d status = %d",
+                      conn_id, op, status);
+
+    /* notification and indication processed right away */
+    if (op == GATTC_OPTYPE_NOTIFICATION || op == GATTC_OPTYPE_INDICATION)
+    {
+        bta_gattc_process_indicate(conn_id, op, p_data);
+        return;
+    }
+    /* for all other operation, not expected if w/o connection */
+    else if ((p_clcb = bta_gattc_find_clcb_by_conn_id(conn_id)) == NULL)
+    {
+        APPL_TRACE_ERROR("bta_gattc_cmpl_cback unknown conn_id =  %d, ignore data", conn_id);
+        return;
+    }
+
+    /* if over BR_EDR, inform PM for mode change */
+    if (p_clcb->transport == BTA_TRANSPORT_BR_EDR)
+    {
+        bta_sys_busy(BTA_ID_GATTC, BTA_ALL_APP_ID, p_clcb->bda);
+        bta_sys_idle(BTA_ID_GATTC, BTA_ALL_APP_ID, p_clcb->bda);
+    }
+
+    bta_gattc_cmpl_sendmsg(conn_id, op, status, p_data);
+}
+
+/*******************************************************************************
+**
+** Function         bta_gattc_cmpl_sendmsg
+**
+** Description      client operation complete send message
+**
+** Returns          None.
+**
+*******************************************************************************/
+static void bta_gattc_cmpl_sendmsg(UINT16 conn_id, tGATTC_OPTYPE op,
+                                   tBTA_GATT_STATUS status,
+                                   tGATT_CL_COMPLETE *p_data)
+{
+    const size_t len = sizeof(tBTA_GATTC_OP_CMPL) + sizeof(tGATT_CL_COMPLETE);
+    tBTA_GATTC_OP_CMPL *p_buf = (tBTA_GATTC_OP_CMPL *)osi_calloc(len);
+
+    p_buf->hdr.event = BTA_GATTC_OP_CMPL_EVT;
+    p_buf->hdr.layer_specific = conn_id;
+    p_buf->status = status;
+    p_buf->op_code = op;
+
+    if (p_data != NULL) {
+        p_buf->p_cmpl = (tGATT_CL_COMPLETE *)(p_buf + 1);
+        memcpy(p_buf->p_cmpl, p_data, sizeof(tGATT_CL_COMPLETE));
+    }
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         bta_gattc_cong_cback
+**
+** Description      congestion callback for BTA GATT client.
+**
+** Returns          void
+**
+********************************************************************************/
+static void bta_gattc_cong_cback (UINT16 conn_id, BOOLEAN congested)
+{
+    tBTA_GATTC_CLCB *p_clcb;
+    tBTA_GATTC cb_data;
+
+    if ((p_clcb = bta_gattc_find_clcb_by_conn_id(conn_id)) != NULL)
+    {
+        if (p_clcb->p_rcb->p_cback)
+        {
+            cb_data.congest.conn_id = conn_id;
+            cb_data.congest.congested = congested;
+
+            (*p_clcb->p_rcb->p_cback)(BTA_GATTC_CONGEST_EVT, &cb_data);
+        }
+    }
+}
+
+#if BLE_INCLUDED == TRUE
+/*******************************************************************************
+**
+** Function         bta_gattc_init_clcb_conn
+**
+** Description      Initaite a BTA CLCB connection
+**
+** Returns          void
+**
+********************************************************************************/
+void bta_gattc_init_clcb_conn(UINT8 cif, BD_ADDR remote_bda)
+{
+    tBTA_GATTC_CLCB     *p_clcb = NULL;
+    tBTA_GATTC_DATA     gattc_data;
+    UINT16              conn_id;
+
+    /* should always get the connection ID */
+    if (GATT_GetConnIdIfConnected(cif, remote_bda, &conn_id, BTA_GATT_TRANSPORT_LE) == FALSE)
+    {
+        APPL_TRACE_ERROR("bta_gattc_init_clcb_conn ERROR: not a connected device");
+        return;
+    }
+
+    /* initaite a new connection here */
+    if ((p_clcb = bta_gattc_clcb_alloc(cif, remote_bda, BTA_GATT_TRANSPORT_LE)) != NULL)
+    {
+        gattc_data.hdr.layer_specific = p_clcb->bta_conn_id = conn_id;
+
+        gattc_data.api_conn.client_if = cif;
+        memcpy(gattc_data.api_conn.remote_bda, remote_bda, BD_ADDR_LEN);
+        gattc_data.api_conn.is_direct = TRUE;
+
+        bta_gattc_sm_execute(p_clcb, BTA_GATTC_API_OPEN_EVT, &gattc_data);
+    }
+    else
+    {
+        APPL_TRACE_ERROR("No resources");
+    }
+}
+/*******************************************************************************
+**
+** Function         bta_gattc_process_listen_all
+**
+** Description      process listen all, send open callback to application for all
+**                  connected slave LE link.
+**
+** Returns          void
+**
+********************************************************************************/
+void bta_gattc_process_listen_all(UINT8 cif)
+{
+    UINT8               i_conn = 0;
+    tBTA_GATTC_CONN     *p_conn = &bta_gattc_cb.conn_track[0];
+
+    for (i_conn = 0; i_conn < BTA_GATTC_CONN_MAX; i_conn++, p_conn ++)
+    {
+        if (p_conn->in_use )
+        {
+            if (bta_gattc_find_clcb_by_cif(cif, p_conn->remote_bda, BTA_GATT_TRANSPORT_LE) == NULL)
+            {
+                bta_gattc_init_clcb_conn(cif, p_conn->remote_bda);
+            }
+            /* else already connected */
+        }
+    }
+}
+/*******************************************************************************
+**
+** Function         bta_gattc_listen
+**
+** Description      Start or stop a listen for connection
+**
+** Returns          void
+**
+********************************************************************************/
+void bta_gattc_listen(tBTA_GATTC_CB *p_cb, tBTA_GATTC_DATA * p_msg)
+{
+    tBTA_GATTC_RCB      *p_clreg = bta_gattc_cl_get_regcb(p_msg->api_listen.client_if);
+    tBTA_GATTC          cb_data;
+    UNUSED(p_cb);
+
+    cb_data.reg_oper.status = BTA_GATT_ERROR;
+    cb_data.reg_oper.client_if = p_msg->api_listen.client_if;
+
+    if (p_clreg == NULL)
+    {
+        APPL_TRACE_ERROR("bta_gattc_listen failed, unknown client_if: %d",
+                            p_msg->api_listen.client_if);
+        return;
+    }
+    /* mark bg conn record */
+    if (bta_gattc_mark_bg_conn(p_msg->api_listen.client_if,
+                               (BD_ADDR_PTR) p_msg->api_listen.remote_bda,
+                               p_msg->api_listen.start,
+                               TRUE))
+    {
+        if (!GATT_Listen(p_msg->api_listen.client_if,
+                         p_msg->api_listen.start,
+                         p_msg->api_listen.remote_bda))
+        {
+            APPL_TRACE_ERROR("Listen failure");
+            (*p_clreg->p_cback)(BTA_GATTC_LISTEN_EVT, &cb_data);
+        }
+        else
+        {
+            cb_data.status = BTA_GATT_OK;
+
+            (*p_clreg->p_cback)(BTA_GATTC_LISTEN_EVT, &cb_data);
+
+            if (p_msg->api_listen.start)
+            {
+                /* if listen to a specific target */
+                if (p_msg->api_listen.remote_bda != NULL)
+                {
+
+                    /* if is a connected remote device */
+                    if (L2CA_GetBleConnRole(p_msg->api_listen.remote_bda) == HCI_ROLE_SLAVE &&
+                        bta_gattc_find_clcb_by_cif(p_msg->api_listen.client_if,
+                                                   p_msg->api_listen.remote_bda,
+                                                   BTA_GATT_TRANSPORT_LE) == NULL)
+                    {
+
+                        bta_gattc_init_clcb_conn(p_msg->api_listen.client_if,
+                                                p_msg->api_listen.remote_bda);
+                    }
+                }
+                /* if listen to all */
+                else
+                {
+                    LOG_DEBUG(LOG_TAG, "Listen For All now");
+                    /* go through all connected device and send
+                    callback for all connected slave connection */
+                    bta_gattc_process_listen_all(p_msg->api_listen.client_if);
+                }
+            }
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_gattc_broadcast
+**
+** Description      Start or stop broadcasting
+**
+** Returns          void
+**
+********************************************************************************/
+void bta_gattc_broadcast(tBTA_GATTC_CB *p_cb, tBTA_GATTC_DATA * p_msg)
+{
+    tBTA_GATTC_RCB      *p_clreg = bta_gattc_cl_get_regcb(p_msg->api_listen.client_if);
+    tBTA_GATTC          cb_data;
+    UNUSED(p_cb);
+
+    cb_data.reg_oper.client_if = p_msg->api_listen.client_if;
+    cb_data.reg_oper.status = BTM_BleBroadcast(p_msg->api_listen.start);
+
+    if (p_clreg && p_clreg->p_cback)
+        (*p_clreg->p_cback)(BTA_GATTC_LISTEN_EVT, &cb_data);
+}
+#endif
+#endif
diff --git a/rtkbt/code/bt/bta/gatt/bta_gattc_api.c b/rtkbt/code/bt/bta/gatt/bta_gattc_api.c
new file mode 100755
index 0000000..0ea5796
--- /dev/null
+++ b/rtkbt/code/bt/bta/gatt/bta_gattc_api.c
@@ -0,0 +1,773 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2010-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the implementation of the API for GATT module of BTA.
+ *
+ ******************************************************************************/
+
+#include "bt_target.h"
+
+#if defined(BTA_GATT_INCLUDED) && (BTA_GATT_INCLUDED == TRUE)
+
+#include <string.h>
+#include "bt_common.h"
+#include "bta_sys.h"
+#include "bta_gatt_api.h"
+#include "bta_gattc_int.h"
+
+/*****************************************************************************
+**  Constants
+*****************************************************************************/
+
+static const tBTA_SYS_REG bta_gattc_reg =
+{
+    bta_gattc_hdl_event,
+    BTA_GATTC_Disable
+};
+
+
+/*******************************************************************************
+**
+** Function         BTA_GATTC_Disable
+**
+** Description      This function is called to disable GATTC module
+**
+** Parameters       None.
+**
+** Returns          None
+**
+*******************************************************************************/
+void BTA_GATTC_Disable(void)
+{
+    if (bta_sys_is_register(BTA_ID_GATTC) == FALSE)
+    {
+        APPL_TRACE_WARNING("GATTC Module not enabled/already disabled");
+        return;
+    }
+
+    BT_HDR *p_buf = (BT_HDR *)osi_malloc(sizeof(BT_HDR));
+    p_buf->event = BTA_GATTC_API_DISABLE_EVT;
+
+    bta_sys_sendmsg(p_buf);
+    bta_sys_deregister(BTA_ID_GATTC);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_GATTC_AppRegister
+**
+** Description      This function is called to register application callbacks
+**                    with BTA GATTC module.
+**
+** Parameters       p_app_uuid - applicaiton UUID
+**                  p_client_cb - pointer to the application callback function.
+**
+** Returns          None
+**
+*******************************************************************************/
+void BTA_GATTC_AppRegister(tBT_UUID *p_app_uuid, tBTA_GATTC_CBACK *p_client_cb)
+{
+    tBTA_GATTC_API_REG *p_buf =
+        (tBTA_GATTC_API_REG *)osi_malloc(sizeof(tBTA_GATTC_API_REG));
+
+    if (bta_sys_is_register(BTA_ID_GATTC) == FALSE)
+        bta_sys_register(BTA_ID_GATTC, &bta_gattc_reg);
+
+    p_buf->hdr.event = BTA_GATTC_API_REG_EVT;
+    if (p_app_uuid != NULL)
+        memcpy(&p_buf->app_uuid, p_app_uuid, sizeof(tBT_UUID));
+    p_buf->p_cback = p_client_cb;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_GATTC_AppDeregister
+**
+** Description      This function is called to deregister an application
+**                  from BTA GATTC module.
+**
+** Parameters       client_if - client interface identifier.
+**
+** Returns          None
+**
+*******************************************************************************/
+void BTA_GATTC_AppDeregister(tBTA_GATTC_IF client_if)
+{
+    tBTA_GATTC_API_DEREG *p_buf =
+        (tBTA_GATTC_API_DEREG *)osi_malloc(sizeof(tBTA_GATTC_API_DEREG));
+
+    p_buf->hdr.event = BTA_GATTC_API_DEREG_EVT;
+    p_buf->client_if = client_if;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_GATTC_Open
+**
+** Description      Open a direct connection or add a background auto connection
+**                  bd address
+**
+** Parameters       client_if: server interface.
+**                  remote_bda: remote device BD address.
+**                  is_direct: direct connection or background auto connection
+**                  transport: Transport to be used for GATT connection (BREDR/LE)
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_GATTC_Open(tBTA_GATTC_IF client_if, BD_ADDR remote_bda,
+                    BOOLEAN is_direct, tBTA_GATT_TRANSPORT transport)
+{
+    tBTA_GATTC_API_OPEN *p_buf =
+       (tBTA_GATTC_API_OPEN *) osi_malloc(sizeof(tBTA_GATTC_API_OPEN));
+
+    p_buf->hdr.event = BTA_GATTC_API_OPEN_EVT;
+    p_buf->client_if = client_if;
+    p_buf->is_direct = is_direct;
+    p_buf->transport = transport;
+    memcpy(p_buf->remote_bda, remote_bda, BD_ADDR_LEN);
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_GATTC_CancelOpen
+**
+** Description      Cancel a direct open connection or remove a background auto connection
+**                  bd address
+**
+** Parameters       client_if: server interface.
+**                  remote_bda: remote device BD address.
+**                  is_direct: direct connection or background auto connection
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_GATTC_CancelOpen(tBTA_GATTC_IF client_if, BD_ADDR remote_bda, BOOLEAN is_direct)
+{
+    tBTA_GATTC_API_CANCEL_OPEN *p_buf =
+        (tBTA_GATTC_API_CANCEL_OPEN *)osi_malloc(sizeof(tBTA_GATTC_API_CANCEL_OPEN));
+
+    p_buf->hdr.event = BTA_GATTC_API_CANCEL_OPEN_EVT;
+    p_buf->client_if = client_if;
+    p_buf->is_direct = is_direct;
+    memcpy(p_buf->remote_bda, remote_bda, BD_ADDR_LEN);
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_GATTC_Close
+**
+** Description      Close a connection to a GATT server.
+**
+** Parameters       conn_id: connectino ID to be closed.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_GATTC_Close(UINT16 conn_id)
+{
+    BT_HDR *p_buf = (BT_HDR *)osi_malloc(sizeof(BT_HDR));
+
+    p_buf->event = BTA_GATTC_API_CLOSE_EVT;
+    p_buf->layer_specific = conn_id;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_GATTC_ConfigureMTU
+**
+** Description      Configure the MTU size in the GATT channel. This can be done
+**                  only once per connection.
+**
+** Parameters       conn_id: connection ID.
+**                  mtu: desired MTU size to use.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_GATTC_ConfigureMTU (UINT16 conn_id, UINT16 mtu)
+{
+    tBTA_GATTC_API_CFG_MTU *p_buf =
+        (tBTA_GATTC_API_CFG_MTU *)osi_malloc(sizeof(tBTA_GATTC_API_CFG_MTU));
+
+    p_buf->hdr.event = BTA_GATTC_API_CFG_MTU_EVT;
+    p_buf->hdr.layer_specific = conn_id;
+    p_buf->mtu = mtu;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_GATTC_ServiceSearchRequest
+**
+** Description      This function is called to request a GATT service discovery
+**                    on a GATT server. This function report service search result
+**                  by a callback event, and followed by a service search complete
+**                  event.
+**
+** Parameters       conn_id: connection ID.
+**                  p_srvc_uuid: a UUID of the service application is interested in.
+**                              If Null, discover for all services.
+**
+** Returns          None
+**
+*******************************************************************************/
+void BTA_GATTC_ServiceSearchRequest (UINT16 conn_id, tBT_UUID *p_srvc_uuid)
+{
+    const size_t len = sizeof(tBTA_GATTC_API_SEARCH) + sizeof(tBT_UUID);
+    tBTA_GATTC_API_SEARCH *p_buf = (tBTA_GATTC_API_SEARCH *)osi_calloc(len);
+
+    p_buf->hdr.event = BTA_GATTC_API_SEARCH_EVT;
+    p_buf->hdr.layer_specific = conn_id;
+    if (p_srvc_uuid) {
+        p_buf->p_srvc_uuid = (tBT_UUID *)(p_buf + 1);
+        memcpy(p_buf->p_srvc_uuid, p_srvc_uuid, sizeof(tBT_UUID));
+    } else {
+        p_buf->p_srvc_uuid = NULL;
+    }
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_GATTC_GetServices
+**
+** Description      This function is called to find the services on the given server.
+**
+** Parameters       conn_id: connection ID which identify the server.
+**
+** Returns          returns list_t of tBTA_GATTC_SERVICE or NULL.
+**
+*******************************************************************************/
+const list_t* BTA_GATTC_GetServices(UINT16 conn_id) {
+    return bta_gattc_get_services(conn_id);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_GATTC_GetCharacteristic
+**
+** Description      This function is called to find the characteristic on the given server.
+**
+** Parameters       conn_id - connection ID which identify the server.
+**                  handle - characteristic handle
+**
+** Returns          returns pointer to tBTA_GATTC_CHARACTERISTIC or NULL.
+**
+*******************************************************************************/
+const tBTA_GATTC_CHARACTERISTIC* BTA_GATTC_GetCharacteristic(UINT16 conn_id, UINT16 handle) {
+    return bta_gattc_get_characteristic(conn_id, handle);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_GATTC_GetDescriptor
+**
+** Description      This function is called to find the characteristic on the given server.
+**
+** Parameters       conn_id - connection ID which identify the server.
+**                  handle - descriptor handle
+**
+** Returns          returns pointer to tBTA_GATTC_DESCRIPTOR or NULL.
+**
+*******************************************************************************/
+const tBTA_GATTC_DESCRIPTOR* BTA_GATTC_GetDescriptor(UINT16 conn_id, UINT16 handle) {
+    return bta_gattc_get_descriptor(conn_id, handle);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_GATTC_GetGattDb
+**
+** Description      This function is called to get the GATT database.
+**
+** Parameters       conn_id: connection ID which identify the server.
+**                  db: output parameter which will contain the GATT database copy.
+**                      Caller is responsible for freeing it.
+**                  count: number of elements in database.
+**
+*******************************************************************************/
+void  BTA_GATTC_GetGattDb(UINT16 conn_id, UINT16 start_handle, UINT16 end_handle,
+                          btgatt_db_element_t **db, int *count)
+{
+    bta_gattc_get_gatt_db(conn_id, start_handle, end_handle, db, count);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_GATTC_ReadCharacteristic
+**
+** Description      This function is called to read a characteristics value
+**
+** Parameters       conn_id - connection ID.
+**                  handle - characteritic handle to read.
+**
+** Returns          None
+**
+*******************************************************************************/
+void BTA_GATTC_ReadCharacteristic(UINT16 conn_id, UINT16 handle, tBTA_GATT_AUTH_REQ auth_req)
+{
+    tBTA_GATTC_API_READ *p_buf =
+        (tBTA_GATTC_API_READ *)osi_calloc(sizeof(tBTA_GATTC_API_READ));
+
+    p_buf->hdr.event = BTA_GATTC_API_READ_EVT;
+    p_buf->hdr.layer_specific = conn_id;
+    p_buf->auth_req = auth_req;
+    p_buf->handle = handle;
+    p_buf->cmpl_evt = BTA_GATTC_READ_CHAR_EVT;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_GATTC_ReadCharDescr
+**
+** Description      This function is called to read a descriptor value.
+**
+** Parameters       conn_id - connection ID.
+**                  handle - descriptor handle to read.
+**
+** Returns          None
+**
+*******************************************************************************/
+void BTA_GATTC_ReadCharDescr (UINT16 conn_id, UINT16 handle, tBTA_GATT_AUTH_REQ auth_req)
+{
+    tBTA_GATTC_API_READ *p_buf =
+        (tBTA_GATTC_API_READ *)osi_calloc(sizeof(tBTA_GATTC_API_READ));
+
+    p_buf->hdr.event = BTA_GATTC_API_READ_EVT;
+    p_buf->hdr.layer_specific = conn_id;
+    p_buf->auth_req = auth_req;
+    p_buf->handle = handle;
+    p_buf->cmpl_evt = BTA_GATTC_READ_DESCR_EVT;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_GATTC_ReadMultiple
+**
+** Description      This function is called to read multiple characteristic or
+**                  characteristic descriptors.
+**
+** Parameters       conn_id - connectino ID.
+**                    p_read_multi - pointer to the read multiple parameter.
+**
+** Returns          None
+**
+*******************************************************************************/
+void BTA_GATTC_ReadMultiple(UINT16 conn_id, tBTA_GATTC_MULTI *p_read_multi,
+                            tBTA_GATT_AUTH_REQ auth_req)
+{
+    tBTA_GATTC_API_READ_MULTI *p_buf =
+        (tBTA_GATTC_API_READ_MULTI *)osi_calloc(sizeof(tBTA_GATTC_API_READ_MULTI));
+
+    p_buf->hdr.event = BTA_GATTC_API_READ_MULTI_EVT;
+    p_buf->hdr.layer_specific = conn_id;
+    p_buf->auth_req = auth_req;
+    p_buf->num_attr = p_read_multi->num_attr;
+
+    if (p_buf->num_attr > 0)
+        memcpy(p_buf->handles, p_read_multi->handles, sizeof(UINT16) * p_read_multi->num_attr);
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_GATTC_WriteCharValue
+**
+** Description      This function is called to write characteristic value.
+**
+** Parameters       conn_id - connection ID.
+**                  handle - characteristic handle to write.
+**                  write_type - type of write.
+**                  len: length of the data to be written.
+**                  p_value - the value to be written.
+**
+** Returns          None
+**
+*******************************************************************************/
+void BTA_GATTC_WriteCharValue ( UINT16 conn_id,
+                                UINT16 handle,
+                                tBTA_GATTC_WRITE_TYPE  write_type,
+                                UINT16 len,
+                                UINT8 *p_value,
+                                tBTA_GATT_AUTH_REQ auth_req)
+{
+    tBTA_GATTC_API_WRITE  *p_buf =
+        (tBTA_GATTC_API_WRITE *)osi_calloc(sizeof(tBTA_GATTC_API_WRITE) + len);
+
+    p_buf->hdr.event = BTA_GATTC_API_WRITE_EVT;
+    p_buf->hdr.layer_specific = conn_id;
+    p_buf->auth_req = auth_req;
+    p_buf->handle = handle;
+    p_buf->cmpl_evt = BTA_GATTC_WRITE_CHAR_EVT;
+    p_buf->write_type = write_type;
+    p_buf->len = len;
+
+    if (p_value && len > 0) {
+        p_buf->p_value = (UINT8 *)(p_buf + 1);
+        memcpy(p_buf->p_value, p_value, len);
+    }
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_GATTC_WriteCharDescr
+**
+** Description      This function is called to write descriptor value.
+**
+** Parameters       conn_id - connection ID
+**                  handle - descriptor hadle to write.
+**                  write_type - write type.
+**                  p_value - the value to be written.
+**
+** Returns          None
+**
+*******************************************************************************/
+void BTA_GATTC_WriteCharDescr (UINT16 conn_id,
+                               UINT16 handle,
+                               tBTA_GATTC_WRITE_TYPE  write_type,
+                               tBTA_GATT_UNFMT      *p_data,
+                               tBTA_GATT_AUTH_REQ auth_req)
+{
+    size_t len = sizeof(tBTA_GATTC_API_WRITE);
+
+    if (p_data != NULL)
+        len += p_data->len;
+
+    tBTA_GATTC_API_WRITE *p_buf = (tBTA_GATTC_API_WRITE *)osi_calloc(len);
+    p_buf->hdr.event = BTA_GATTC_API_WRITE_EVT;
+    p_buf->hdr.layer_specific = conn_id;
+    p_buf->auth_req = auth_req;
+    p_buf->handle = handle;
+    p_buf->cmpl_evt = BTA_GATTC_WRITE_DESCR_EVT;
+    p_buf->write_type = write_type;
+
+    if (p_data && p_data->len != 0) {
+        p_buf->p_value  = (UINT8 *)(p_buf + 1);
+        p_buf->len      = p_data->len;
+        /* pack the descr data */
+        memcpy(p_buf->p_value, p_data->p_value, p_data->len);
+    }
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_GATTC_PrepareWrite
+**
+** Description      This function is called to prepare write a characteristic value.
+**
+** Parameters       conn_id - connection ID.
+**                    p_char_id - GATT characteritic ID of the service.
+**                  offset - offset of the write value.
+**                  len: length of the data to be written.
+**                  p_value - the value to be written.
+**
+** Returns          None
+**
+*******************************************************************************/
+void BTA_GATTC_PrepareWrite  (UINT16 conn_id, UINT16 handle,
+                              UINT16 offset, UINT16 len, UINT8 *p_value,
+                              tBTA_GATT_AUTH_REQ auth_req)
+{
+    tBTA_GATTC_API_WRITE *p_buf =
+        (tBTA_GATTC_API_WRITE *)osi_calloc(sizeof(tBTA_GATTC_API_WRITE) + len);
+
+    p_buf->hdr.event = BTA_GATTC_API_WRITE_EVT;
+    p_buf->hdr.layer_specific = conn_id;
+    p_buf->auth_req = auth_req;
+    p_buf->handle = handle;
+
+    p_buf->write_type = BTA_GATTC_WRITE_PREPARE;
+    p_buf->offset   = offset;
+    p_buf->len = len;
+
+    if (p_value && len > 0) {
+        p_buf->p_value = (UINT8 *)(p_buf + 1);
+        memcpy(p_buf->p_value, p_value, len);
+    }
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_GATTC_ExecuteWrite
+**
+** Description      This function is called to execute write a prepare write sequence.
+**
+** Parameters       conn_id - connection ID.
+**                    is_execute - execute or cancel.
+**
+** Returns          None
+**
+*******************************************************************************/
+void BTA_GATTC_ExecuteWrite  (UINT16 conn_id, BOOLEAN is_execute)
+{
+    tBTA_GATTC_API_EXEC *p_buf =
+        (tBTA_GATTC_API_EXEC *)osi_calloc(sizeof(tBTA_GATTC_API_EXEC));
+
+    p_buf->hdr.event = BTA_GATTC_API_EXEC_EVT;
+    p_buf->hdr.layer_specific = conn_id;
+    p_buf->is_execute = is_execute;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_GATTC_SendIndConfirm
+**
+** Description      This function is called to send handle value confirmation.
+**
+** Parameters       conn_id - connection ID.
+**                    p_char_id - characteristic ID to confirm.
+**
+** Returns          None
+**
+*******************************************************************************/
+void BTA_GATTC_SendIndConfirm (UINT16 conn_id, UINT16 handle)
+{
+    tBTA_GATTC_API_CONFIRM *p_buf =
+        (tBTA_GATTC_API_CONFIRM *)osi_calloc(sizeof(tBTA_GATTC_API_CONFIRM));
+
+    APPL_TRACE_API("%s conn_id=%d handle=0x%04x", __func__, conn_id, handle);
+
+    p_buf->hdr.event = BTA_GATTC_API_CONFIRM_EVT;
+    p_buf->hdr.layer_specific = conn_id;
+    p_buf->handle = handle;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_GATTC_RegisterForNotifications
+**
+** Description      This function is called to register for notification of a service.
+**
+** Parameters       client_if - client interface.
+**                  bda - target GATT server.
+**                  handle - GATT characteristic handle.
+**
+** Returns          OK if registration succeed, otherwise failed.
+**
+*******************************************************************************/
+tBTA_GATT_STATUS BTA_GATTC_RegisterForNotifications (tBTA_GATTC_IF client_if,
+                                                     BD_ADDR bda, UINT16 handle)
+{
+    tBTA_GATTC_RCB      *p_clreg;
+    tBTA_GATT_STATUS    status = BTA_GATT_ILLEGAL_PARAMETER;
+    UINT8               i;
+
+    if (!handle)
+    {
+        APPL_TRACE_ERROR("deregistration failed, handle is 0");
+        return status;
+    }
+
+    if ((p_clreg = bta_gattc_cl_get_regcb(client_if)) != NULL)
+    {
+        for (i = 0; i < BTA_GATTC_NOTIF_REG_MAX; i ++)
+        {
+            if ( p_clreg->notif_reg[i].in_use &&
+                 !memcmp(p_clreg->notif_reg[i].remote_bda, bda, BD_ADDR_LEN) &&
+                  p_clreg->notif_reg[i].handle == handle)
+            {
+                APPL_TRACE_WARNING("notification already registered");
+                status = BTA_GATT_OK;
+                break;
+            }
+        }
+        if (status != BTA_GATT_OK)
+        {
+            for (i = 0; i < BTA_GATTC_NOTIF_REG_MAX; i ++)
+            {
+                if (!p_clreg->notif_reg[i].in_use)
+                {
+                    memset((void *)&p_clreg->notif_reg[i], 0, sizeof(tBTA_GATTC_NOTIF_REG));
+
+                    p_clreg->notif_reg[i].in_use = TRUE;
+                    memcpy(p_clreg->notif_reg[i].remote_bda, bda, BD_ADDR_LEN);
+
+                    p_clreg->notif_reg[i].handle = handle;
+                    status = BTA_GATT_OK;
+                    break;
+                }
+            }
+            if (i == BTA_GATTC_NOTIF_REG_MAX)
+            {
+                status = BTA_GATT_NO_RESOURCES;
+                APPL_TRACE_ERROR("Max Notification Reached, registration failed.");
+            }
+        }
+    }
+    else
+    {
+        APPL_TRACE_ERROR("Client_if: %d Not Registered", client_if);
+    }
+
+    return status;
+}
+
+/*******************************************************************************
+**
+** Function         BTA_GATTC_DeregisterForNotifications
+**
+** Description      This function is called to de-register for notification of a servbice.
+**
+** Parameters       client_if - client interface.
+**                  remote_bda - target GATT server.
+**                  handle - GATT characteristic handle.
+**
+** Returns          OK if deregistration succeed, otherwise failed.
+**
+*******************************************************************************/
+tBTA_GATT_STATUS BTA_GATTC_DeregisterForNotifications (tBTA_GATTC_IF client_if,
+                                                       BD_ADDR bda, UINT16 handle)
+{
+    if (!handle) {
+        APPL_TRACE_ERROR("%s: deregistration failed, handle is 0", __func__);
+        return BTA_GATT_ILLEGAL_PARAMETER;
+    }
+
+    tBTA_GATTC_RCB *p_clreg = bta_gattc_cl_get_regcb(client_if);
+    if (p_clreg == NULL) {
+        APPL_TRACE_ERROR("%s client_if: %d not registered bd_addr:%02x:%02x:%02x:%02x:%02x:%02x",
+            __func__, client_if, bda[0], bda[1], bda[2], bda[3], bda[4], bda[5]);
+        return BTA_GATT_ILLEGAL_PARAMETER;
+    }
+
+    for (int i = 0; i < BTA_GATTC_NOTIF_REG_MAX; i ++) {
+        if (p_clreg->notif_reg[i].in_use &&
+            !memcmp(p_clreg->notif_reg[i].remote_bda, bda, BD_ADDR_LEN) &&
+            p_clreg->notif_reg[i].handle == handle) {
+            APPL_TRACE_DEBUG("%s deregistered bd_addr:%02x:%02x:%02x:%02x:%02x:%02x",
+                __func__, bda[0], bda[1], bda[2], bda[3], bda[4], bda[5]);
+            memset(&p_clreg->notif_reg[i], 0, sizeof(tBTA_GATTC_NOTIF_REG));
+            return BTA_GATT_OK;
+        }
+    }
+
+    APPL_TRACE_ERROR("%s registration not found bd_addr:%02x:%02x:%02x:%02x:%02x:%02x",
+        __func__, bda[0], bda[1], bda[2], bda[3], bda[4], bda[5]);
+    return BTA_GATT_ERROR;
+}
+
+/*******************************************************************************
+**
+** Function         BTA_GATTC_Refresh
+**
+** Description      Refresh the server cache of the remote device
+**
+** Parameters       remote_bda: remote device BD address.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_GATTC_Refresh(BD_ADDR remote_bda)
+{
+    tBTA_GATTC_API_OPEN *p_buf =
+        (tBTA_GATTC_API_OPEN *)osi_malloc(sizeof(tBTA_GATTC_API_OPEN));
+
+    p_buf->hdr.event = BTA_GATTC_API_REFRESH_EVT;
+    memcpy(p_buf->remote_bda, remote_bda, BD_ADDR_LEN);
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_GATTC_Listen
+**
+** Description      Start advertisement to listen for connection request for a GATT
+**                  client application.
+**
+** Parameters       client_if: server interface.
+**                  start: to start or stop listening for connection
+**                  remote_bda: remote device BD address, if listen to all device
+**                              use NULL.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_GATTC_Listen(tBTA_GATTC_IF client_if, BOOLEAN start, BD_ADDR_PTR target_bda)
+{
+    tBTA_GATTC_API_LISTEN *p_buf =
+        (tBTA_GATTC_API_LISTEN *)osi_malloc(sizeof(tBTA_GATTC_API_LISTEN) + BD_ADDR_LEN);
+
+    p_buf->hdr.event = BTA_GATTC_API_LISTEN_EVT;
+    p_buf->client_if = client_if;
+    p_buf->start = start;
+    if (target_bda) {
+        p_buf->remote_bda = (UINT8*)(p_buf + 1);
+        memcpy(p_buf->remote_bda, target_bda, BD_ADDR_LEN);
+    } else {
+        p_buf->remote_bda = NULL;
+    }
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_GATTC_Broadcast
+**
+** Description      Start broadcasting (non-connectable advertisements)
+**
+** Parameters       client_if: client interface.
+**                  start: to start or stop listening for connection
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_GATTC_Broadcast(tBTA_GATTC_IF client_if, BOOLEAN start)
+{
+    tBTA_GATTC_API_LISTEN *p_buf =
+        (tBTA_GATTC_API_LISTEN *)osi_malloc(sizeof(tBTA_GATTC_API_LISTEN) + BD_ADDR_LEN);
+
+    p_buf->hdr.event = BTA_GATTC_API_BROADCAST_EVT;
+    p_buf->client_if = client_if;
+    p_buf->start = start;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+#endif /* BTA_GATT_INCLUDED */
diff --git a/rtkbt/code/bt/bta/gatt/bta_gattc_cache.c b/rtkbt/code/bt/bta/gatt/bta_gattc_cache.c
new file mode 100755
index 0000000..e2c904d
--- /dev/null
+++ b/rtkbt/code/bt/bta/gatt/bta_gattc_cache.c
@@ -0,0 +1,1635 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains the GATT client discovery procedures and cache
+ *  related functions.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_bta_gattc"
+
+#include "bt_target.h"
+
+#if defined(BTA_GATT_INCLUDED) && (BTA_GATT_INCLUDED == TRUE)
+
+#include <errno.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "bta_gattc_int.h"
+#include "bta_sys.h"
+#include "btm_api.h"
+#include "btm_ble_api.h"
+#include "btm_int.h"
+#include "bt_common.h"
+#include "osi/include/log.h"
+#include "sdp_api.h"
+#include "sdpdefs.h"
+#include "utl.h"
+
+static void bta_gattc_cache_write(BD_ADDR server_bda, UINT16 num_attr, tBTA_GATTC_NV_ATTR *attr);
+static void bta_gattc_char_dscpt_disc_cmpl(UINT16 conn_id, tBTA_GATTC_SERV *p_srvc_cb);
+static tBTA_GATT_STATUS bta_gattc_sdp_service_disc(UINT16 conn_id, tBTA_GATTC_SERV *p_server_cb);
+extern void bta_to_btif_uuid(bt_uuid_t *p_dest, tBT_UUID *p_src);
+tBTA_GATTC_SERVICE*  bta_gattc_find_matching_service(const list_t *services, UINT16 handle);
+tBTA_GATTC_DESCRIPTOR*  bta_gattc_get_descriptor_srcb(tBTA_GATTC_SERV *p_srcb, UINT16 handle);
+tBTA_GATTC_CHARACTERISTIC*  bta_gattc_get_characteristic_srcb(tBTA_GATTC_SERV *p_srcb, UINT16 handle);
+
+#define BTA_GATT_SDP_DB_SIZE 4096
+
+#define GATT_CACHE_PREFIX "/data/misc/bluetooth/gatt_cache_"
+#define GATT_CACHE_VERSION 2
+
+static void bta_gattc_generate_cache_file_name(char *buffer, BD_ADDR bda)
+{
+    sprintf(buffer, "%s%02x%02x%02x%02x%02x%02x", GATT_CACHE_PREFIX,
+            bda[0], bda[1], bda[2], bda[3], bda[4], bda[5]);
+}
+
+/*****************************************************************************
+**  Constants and data types
+*****************************************************************************/
+
+typedef struct
+{
+    tSDP_DISCOVERY_DB   *p_sdp_db;
+    UINT16              sdp_conn_id;
+} tBTA_GATTC_CB_DATA;
+
+#if (defined BTA_GATT_DEBUG && BTA_GATT_DEBUG == TRUE)
+static char *bta_gattc_attr_type[] =
+{
+    "I", /* Included Service */
+    "C", /* Characteristic */
+    "D" /* Characteristic Descriptor */
+};
+/* utility functions */
+
+bool display_cache_attribute(void *data, void *context) {
+    tBTA_GATTC_CACHE_ATTR *p_attr = data;
+    APPL_TRACE_ERROR("\t Attr handle[%d] uuid[0x%04x] type[%s] prop[0x%1x]",
+                      p_attr->handle, p_attr->uuid.uu.uuid16,
+                      bta_gattc_attr_type[p_attr->attr_type], p_attr->property);
+    return true;
+}
+
+bool display_cache_service(void *data, void *context) {
+    tBTA_GATTC_SERVICE    *p_cur_srvc = data;
+    APPL_TRACE_ERROR("Service: handle[%d ~ %d] %s[0x%04x] inst[%d]",
+                      p_cur_srvc->s_handle, p_cur_srvc->e_handle,
+                      ((p_cur_srvc->uuid.len == 2) ? "uuid16" : "uuid128"),
+                      p_cur_srvc->uuid.uu.uuid16,
+                      p_cur_srvc->handle);
+
+    if (p_cur_srvc->characteristics != NULL) {
+        list_foreach(p_cur_srvc->characteristics, display_cache_attribute, NULL);
+    }
+
+    return true;
+}
+
+/*******************************************************************************
+**
+** Function         bta_gattc_display_cache_server
+**
+** Description      debug function to display the server cache.
+**
+** Returns          none.
+**
+*******************************************************************************/
+static void bta_gattc_display_cache_server(list_t *p_cache)
+{
+    APPL_TRACE_ERROR("<================Start Server Cache =============>");
+    list_foreach(p_cache, display_cache_service, NULL);
+    APPL_TRACE_ERROR("<================End Server Cache =============>");
+    APPL_TRACE_ERROR(" ");
+}
+
+/*******************************************************************************
+**
+** Function         bta_gattc_display_explore_record
+**
+** Description      debug function to display the exploration list
+**
+** Returns          none.
+**
+*******************************************************************************/
+static void bta_gattc_display_explore_record(tBTA_GATTC_ATTR_REC *p_rec, UINT8 num_rec)
+{
+    UINT8 i;
+    tBTA_GATTC_ATTR_REC *pp = p_rec;
+
+    APPL_TRACE_ERROR("<================Start Explore Queue =============>");
+    for (i = 0; i < num_rec; i ++, pp ++)
+    {
+        APPL_TRACE_ERROR("\t rec[%d] uuid[0x%04x] s_handle[%d] e_handle[%d] is_primary[%d]",
+                          i + 1, pp->uuid.uu.uuid16, pp->s_handle, pp->e_handle, pp->is_primary);
+    }
+    APPL_TRACE_ERROR("<================ End Explore Queue =============>");
+    APPL_TRACE_ERROR(" ");
+
+}
+#endif  /* BTA_GATT_DEBUG == TRUE */
+
+/*******************************************************************************
+**
+** Function         bta_gattc_init_cache
+**
+** Description      Initialize the database cache and discovery related resources.
+**
+** Returns          status
+**
+*******************************************************************************/
+tBTA_GATT_STATUS bta_gattc_init_cache(tBTA_GATTC_SERV *p_srvc_cb)
+{
+    if (p_srvc_cb->p_srvc_cache != NULL) {
+        list_free(p_srvc_cb->p_srvc_cache);
+        p_srvc_cb->p_srvc_cache = NULL;
+    }
+
+    osi_free(p_srvc_cb->p_srvc_list);
+    p_srvc_cb->p_srvc_list =
+        (tBTA_GATTC_ATTR_REC *)osi_malloc(BTA_GATTC_ATTR_LIST_SIZE);
+    p_srvc_cb->total_srvc = 0;
+    p_srvc_cb->cur_srvc_idx = 0;
+    p_srvc_cb->cur_char_idx = 0;
+    p_srvc_cb->next_avail_idx = 0;
+
+    return BTA_GATT_OK;
+}
+
+static void characteristic_free(void *ptr) {
+  tBTA_GATTC_CHARACTERISTIC *p_char = ptr;
+  list_free(p_char->descriptors);
+  osi_free(p_char);
+}
+
+static void service_free(void *ptr) {
+  tBTA_GATTC_SERVICE *srvc = ptr;
+  list_free(srvc->characteristics);
+  list_free(srvc->included_svc);
+  osi_free(srvc);
+}
+
+/*******************************************************************************
+**
+** Function         bta_gattc_add_srvc_to_cache
+**
+** Description      Add a service into database cache.
+**
+** Returns          status
+**
+*******************************************************************************/
+static tBTA_GATT_STATUS bta_gattc_add_srvc_to_cache(tBTA_GATTC_SERV *p_srvc_cb,
+                                                    UINT16 s_handle, UINT16 e_handle,
+                                                    tBT_UUID *p_uuid,
+                                                    BOOLEAN is_primary)
+{
+#if (defined BTA_GATT_DEBUG && BTA_GATT_DEBUG == TRUE)
+    APPL_TRACE_DEBUG("Add a service into Service");
+#endif
+
+    tBTA_GATTC_SERVICE *p_new_srvc = osi_malloc(sizeof(tBTA_GATTC_SERVICE));
+
+    /* update service information */
+    p_new_srvc->s_handle = s_handle;
+    p_new_srvc->e_handle = e_handle;
+    p_new_srvc->is_primary = is_primary;
+    memcpy(&p_new_srvc->uuid, p_uuid, sizeof(tBT_UUID));
+    p_new_srvc->handle = s_handle;
+    p_new_srvc->characteristics = list_new(characteristic_free);
+    p_new_srvc->included_svc = list_new(osi_free);
+
+    if (p_srvc_cb->p_srvc_cache == NULL) {
+        p_srvc_cb->p_srvc_cache = list_new(service_free);
+    }
+
+    list_append(p_srvc_cb->p_srvc_cache, p_new_srvc);
+    return BTA_GATT_OK;
+}
+
+static tBTA_GATT_STATUS bta_gattc_add_char_to_cache(tBTA_GATTC_SERV *p_srvc_cb,
+                                                    UINT16 attr_handle,
+                                                    UINT16 value_handle,
+                                                    tBT_UUID *p_uuid,
+                                                    UINT8 property)
+{
+#if (defined BTA_GATT_DEBUG && BTA_GATT_DEBUG == TRUE)
+    APPL_TRACE_DEBUG("%s: Add a characteristic into Service", __func__);
+    APPL_TRACE_DEBUG("handle=%d uuid16=0x%x property=0x%x",
+                      value_handle, p_uuid->uu.uuid16, property);
+#endif
+
+    tBTA_GATTC_SERVICE *service = bta_gattc_find_matching_service(p_srvc_cb->p_srvc_cache, attr_handle);
+    if (!service) {
+        APPL_TRACE_ERROR("Illegal action to add char/descr/incl srvc for non-existing service!");
+        return GATT_WRONG_STATE;
+    }
+
+    /* TODO(jpawlowski): We should use attribute handle, not value handle to refer to characteristic.
+       This is just a temporary workaround.
+    */
+    if (service->e_handle < value_handle)
+        service->e_handle = value_handle;
+
+    tBTA_GATTC_CHARACTERISTIC *characteristic = osi_malloc(sizeof(tBTA_GATTC_CHARACTERISTIC));
+
+    characteristic->handle = value_handle;
+    characteristic->properties = property;
+    characteristic->descriptors = list_new(osi_free);
+    memcpy(&characteristic->uuid, p_uuid, sizeof(tBT_UUID));
+
+    characteristic->service = service;
+    list_append(service->characteristics, characteristic);
+
+    return BTA_GATT_OK;
+}
+
+/*******************************************************************************
+**
+** Function         bta_gattc_add_attr_to_cache
+**
+** Description      Add an attribute into database cache buffer.
+**
+** Returns          status
+**
+*******************************************************************************/
+static tBTA_GATT_STATUS bta_gattc_add_attr_to_cache(tBTA_GATTC_SERV *p_srvc_cb,
+                                                    UINT16 handle,
+                                                    tBT_UUID *p_uuid,
+                                                    UINT8 property,
+                                                    UINT16 incl_srvc_s_handle,
+                                                    tBTA_GATTC_ATTR_TYPE type)
+{
+#if (defined BTA_GATT_DEBUG && BTA_GATT_DEBUG == TRUE)
+    APPL_TRACE_DEBUG("%s: Add a [%s] into Service", __func__, bta_gattc_attr_type[type]);
+    APPL_TRACE_DEBUG("handle=%d uuid16=0x%x property=0x%x type=%d",
+                      handle, p_uuid->uu.uuid16, property, type);
+#endif
+
+    tBTA_GATTC_SERVICE *service = bta_gattc_find_matching_service(p_srvc_cb->p_srvc_cache, handle);
+    if (!service) {
+        APPL_TRACE_ERROR("Illegal action to add char/descr/incl srvc for non-existing service!");
+        return GATT_WRONG_STATE;
+    }
+
+    if (type == BTA_GATTC_ATTR_TYPE_INCL_SRVC) {
+        tBTA_GATTC_INCLUDED_SVC *isvc =
+            osi_malloc(sizeof(tBTA_GATTC_INCLUDED_SVC));
+
+        isvc->handle = handle;
+        memcpy(&isvc->uuid, p_uuid, sizeof(tBT_UUID));
+
+        isvc->owning_service = service;
+        isvc->included_service = bta_gattc_find_matching_service(
+                                    p_srvc_cb->p_srvc_cache, incl_srvc_s_handle);
+        if (!isvc->included_service) {
+            APPL_TRACE_ERROR("%s: Illegal action to add non-existing included service!", __func__);
+            osi_free(isvc);
+            return GATT_WRONG_STATE;
+        }
+
+        list_append(service->included_svc, isvc);
+    } else if (type == BTA_GATTC_ATTR_TYPE_CHAR_DESCR) {
+        tBTA_GATTC_DESCRIPTOR *descriptor =
+            osi_malloc(sizeof(tBTA_GATTC_DESCRIPTOR));
+
+        descriptor->handle = handle;
+        memcpy(&descriptor->uuid, p_uuid, sizeof(tBT_UUID));
+
+        if (service->characteristics == NULL) {
+            APPL_TRACE_ERROR("%s: Illegal action to add descriptor before adding a characteristic!",
+                             __func__);
+            osi_free(descriptor);
+            return GATT_WRONG_STATE;
+        }
+
+        tBTA_GATTC_CHARACTERISTIC *char_node = list_back(service->characteristics);
+
+        descriptor->characteristic = char_node;
+        list_append(char_node->descriptors, descriptor);
+    }
+    return BTA_GATT_OK;
+}
+
+/*******************************************************************************
+**
+** Function         bta_gattc_get_disc_range
+**
+** Description      get discovery stating and ending handle range.
+**
+** Returns          None.
+**
+*******************************************************************************/
+void bta_gattc_get_disc_range(tBTA_GATTC_SERV *p_srvc_cb, UINT16 *p_s_hdl, UINT16 *p_e_hdl, BOOLEAN is_srvc)
+{
+    tBTA_GATTC_ATTR_REC *p_rec = NULL;
+
+    if (is_srvc)
+    {
+        p_rec = p_srvc_cb->p_srvc_list + p_srvc_cb->cur_srvc_idx;
+        *p_s_hdl = p_rec->s_handle;
+    }
+    else
+    {
+        p_rec = p_srvc_cb->p_srvc_list + p_srvc_cb->cur_char_idx;
+        *p_s_hdl = p_rec->s_handle + 1;
+    }
+
+    *p_e_hdl = p_rec->e_handle;
+#if (defined BTA_GATT_DEBUG && BTA_GATT_DEBUG == TRUE)
+    APPL_TRACE_DEBUG("discover range [%d ~ %d]",p_rec->s_handle, p_rec->e_handle);
+#endif
+    return;
+}
+/*******************************************************************************
+**
+** Function         bta_gattc_discover_pri_service
+**
+** Description      Start primary service discovery
+**
+** Returns          status of the operation.
+**
+*******************************************************************************/
+tBTA_GATT_STATUS bta_gattc_discover_pri_service(UINT16 conn_id, tBTA_GATTC_SERV *p_server_cb,
+                                                    UINT8 disc_type)
+{
+    tBTA_GATTC_CLCB     *p_clcb = bta_gattc_find_clcb_by_conn_id(conn_id);
+    tBTA_GATT_STATUS    status =  BTA_GATT_ERROR;
+
+    if (p_clcb)
+    {
+        if (p_clcb->transport == BTA_TRANSPORT_LE)
+            status = bta_gattc_discover_procedure(conn_id, p_server_cb, disc_type);
+        else
+            status = bta_gattc_sdp_service_disc(conn_id, p_server_cb);
+    }
+
+    return status;
+}
+/*******************************************************************************
+**
+** Function         bta_gattc_discover_procedure
+**
+** Description      Start a particular type of discovery procedure on server.
+**
+** Returns          status of the operation.
+**
+*******************************************************************************/
+tBTA_GATT_STATUS bta_gattc_discover_procedure(UINT16 conn_id, tBTA_GATTC_SERV *p_server_cb,
+                                                   UINT8 disc_type)
+{
+    tGATT_DISC_PARAM param;
+    BOOLEAN is_service = TRUE;
+
+    memset(&param, 0, sizeof(tGATT_DISC_PARAM));
+
+    if (disc_type == GATT_DISC_SRVC_ALL || disc_type == GATT_DISC_SRVC_BY_UUID)
+    {
+        param.s_handle = 1;
+        param.e_handle = 0xFFFF;
+    }
+    else
+    {
+        if (disc_type == GATT_DISC_CHAR_DSCPT)
+            is_service = FALSE;
+
+        bta_gattc_get_disc_range(p_server_cb, &param.s_handle, &param.e_handle, is_service);
+
+        if (param.s_handle > param.e_handle)
+        {
+            return GATT_ERROR;
+        }
+    }
+    return GATTC_Discover (conn_id, disc_type, &param);
+
+}
+/*******************************************************************************
+**
+** Function         bta_gattc_start_disc_include_srvc
+**
+** Description      Start discovery for included service
+**
+** Returns          status of the operation.
+**
+*******************************************************************************/
+tBTA_GATT_STATUS bta_gattc_start_disc_include_srvc(UINT16 conn_id, tBTA_GATTC_SERV *p_srvc_cb)
+{
+    return bta_gattc_discover_procedure(conn_id, p_srvc_cb, GATT_DISC_INC_SRVC);
+}
+/*******************************************************************************
+**
+** Function         bta_gattc_start_disc_char
+**
+** Description      Start discovery for characteristic
+**
+** Returns          status of the operation.
+**
+*******************************************************************************/
+tBTA_GATT_STATUS bta_gattc_start_disc_char(UINT16 conn_id, tBTA_GATTC_SERV *p_srvc_cb)
+{
+    p_srvc_cb->total_char = 0;
+
+    return bta_gattc_discover_procedure(conn_id, p_srvc_cb, GATT_DISC_CHAR);
+}
+/*******************************************************************************
+**
+** Function         bta_gattc_start_disc_char_dscp
+**
+** Description      Start discovery for characteristic descriptor
+**
+** Returns          none.
+**
+*******************************************************************************/
+void bta_gattc_start_disc_char_dscp(UINT16 conn_id, tBTA_GATTC_SERV *p_srvc_cb)
+{
+    APPL_TRACE_DEBUG("starting discover characteristics descriptor");
+
+    if (bta_gattc_discover_procedure(conn_id, p_srvc_cb, GATT_DISC_CHAR_DSCPT) != 0)
+        bta_gattc_char_dscpt_disc_cmpl(conn_id, p_srvc_cb);
+
+}
+/*******************************************************************************
+**
+** Function         bta_gattc_explore_srvc
+**
+** Description      process the service discovery complete event
+**
+** Returns          status
+**
+*******************************************************************************/
+static void bta_gattc_explore_srvc(UINT16 conn_id, tBTA_GATTC_SERV *p_srvc_cb)
+{
+    tBTA_GATTC_ATTR_REC *p_rec = p_srvc_cb->p_srvc_list + p_srvc_cb->cur_srvc_idx;
+    tBTA_GATTC_CLCB *p_clcb = bta_gattc_find_clcb_by_conn_id(conn_id);
+
+    APPL_TRACE_DEBUG("Start service discovery: srvc_idx = %d", p_srvc_cb->cur_srvc_idx);
+
+    p_srvc_cb->cur_char_idx = p_srvc_cb->next_avail_idx = p_srvc_cb->total_srvc;
+
+    if (p_clcb == NULL)
+    {
+        APPL_TRACE_ERROR("unknown connection ID");
+        return;
+    }
+    /* start expore a service if there is service not been explored */
+    if (p_srvc_cb->cur_srvc_idx < p_srvc_cb->total_srvc)
+    {
+        /* add the first service into cache */
+        if (bta_gattc_add_srvc_to_cache (p_srvc_cb,
+                                         p_rec->s_handle,
+                                         p_rec->e_handle,
+                                         &p_rec->uuid,
+                                         p_rec->is_primary) == 0)
+        {
+            /* start discovering included services */
+            bta_gattc_start_disc_include_srvc(conn_id, p_srvc_cb);
+            return;
+        }
+    }
+    /* no service found at all, the end of server discovery*/
+    LOG_WARN(LOG_TAG, "%s no more services found", __func__);
+
+#if (defined BTA_GATT_DEBUG && BTA_GATT_DEBUG == TRUE)
+    bta_gattc_display_cache_server(p_srvc_cb->p_srvc_cache);
+#endif
+    /* save cache to NV */
+    p_clcb->p_srcb->state = BTA_GATTC_SERV_SAVE;
+
+    if (btm_sec_is_a_bonded_dev(p_srvc_cb->server_bda)) {
+        bta_gattc_cache_save(p_clcb->p_srcb, p_clcb->bta_conn_id);
+    }
+
+    bta_gattc_reset_discover_st(p_clcb->p_srcb, BTA_GATT_OK);
+}
+/*******************************************************************************
+**
+** Function         bta_gattc_incl_srvc_disc_cmpl
+**
+** Description      process the relationship discovery complete event
+**
+** Returns          status
+**
+*******************************************************************************/
+static void bta_gattc_incl_srvc_disc_cmpl(UINT16 conn_id, tBTA_GATTC_SERV *p_srvc_cb)
+{
+    p_srvc_cb->cur_char_idx = p_srvc_cb->total_srvc;
+
+    /* start discoverying characteristic */
+    bta_gattc_start_disc_char(conn_id, p_srvc_cb);
+}
+/*******************************************************************************
+**
+** Function         bta_gattc_char_disc_cmpl
+**
+** Description      process the characteristic discovery complete event
+**
+** Returns          status
+**
+*******************************************************************************/
+static void bta_gattc_char_disc_cmpl(UINT16 conn_id, tBTA_GATTC_SERV *p_srvc_cb)
+{
+    tBTA_GATTC_ATTR_REC *p_rec = p_srvc_cb->p_srvc_list + p_srvc_cb->cur_char_idx;
+
+    /* if there are characteristic needs to be explored */
+    if (p_srvc_cb->total_char > 0)
+    {
+        /* add the first characteristic into cache */
+        bta_gattc_add_char_to_cache (p_srvc_cb,
+                                     p_rec->char_decl_handle,
+                                     p_rec->s_handle,
+                                     &p_rec->uuid,
+                                     p_rec->property);
+
+        /* start discoverying characteristic descriptor , if failed, disc for next char*/
+        bta_gattc_start_disc_char_dscp(conn_id, p_srvc_cb);
+    }
+    else /* otherwise start with next service */
+    {
+        p_srvc_cb->cur_srvc_idx ++;
+
+        bta_gattc_explore_srvc (conn_id, p_srvc_cb);
+    }
+}
+/*******************************************************************************
+**
+** Function         bta_gattc_char_dscpt_disc_cmpl
+**
+** Description      process the char descriptor discovery complete event
+**
+** Returns          status
+**
+*******************************************************************************/
+static void bta_gattc_char_dscpt_disc_cmpl(UINT16 conn_id, tBTA_GATTC_SERV *p_srvc_cb)
+{
+    tBTA_GATTC_ATTR_REC *p_rec = NULL;
+
+    if (-- p_srvc_cb->total_char > 0)
+    {
+        p_rec = p_srvc_cb->p_srvc_list + (++ p_srvc_cb->cur_char_idx);
+        /* add the next characteristic into cache */
+        bta_gattc_add_char_to_cache (p_srvc_cb,
+                                     p_rec->char_decl_handle,
+                                     p_rec->s_handle,
+                                     &p_rec->uuid,
+                                     p_rec->property);
+
+        /* start discoverying next characteristic for char descriptor */
+        bta_gattc_start_disc_char_dscp(conn_id, p_srvc_cb);
+    }
+    else
+    /* all characteristic has been explored, start with next service if any */
+    {
+#if (defined BTA_GATT_DEBUG && BTA_GATT_DEBUG == TRUE)
+        APPL_TRACE_ERROR("all char has been explored");
+#endif
+        p_srvc_cb->cur_srvc_idx ++;
+        bta_gattc_explore_srvc (conn_id, p_srvc_cb);
+    }
+
+}
+static BOOLEAN bta_gattc_srvc_in_list(tBTA_GATTC_SERV *p_srvc_cb, UINT16 s_handle,
+                                      UINT16 e_handle, tBT_UUID uuid)
+{
+    tBTA_GATTC_ATTR_REC *p_rec = NULL;
+    UINT8   i;
+    BOOLEAN exist_srvc = FALSE;
+    UNUSED(uuid);
+
+    if (!GATT_HANDLE_IS_VALID(s_handle) || !GATT_HANDLE_IS_VALID(e_handle))
+    {
+        APPL_TRACE_ERROR("invalid included service handle: [0x%04x ~ 0x%04x]", s_handle, e_handle);
+        exist_srvc = TRUE;
+    }
+    else
+    {
+        for (i = 0; i < p_srvc_cb->next_avail_idx; i ++)
+        {
+            p_rec = p_srvc_cb->p_srvc_list + i;
+
+            /* a new service should not have any overlap with other service handle range */
+            if (p_rec->s_handle == s_handle || p_rec->e_handle == e_handle)
+            {
+                exist_srvc = TRUE;
+                break;
+            }
+        }
+    }
+    return exist_srvc;
+}
+/*******************************************************************************
+**
+** Function         bta_gattc_add_srvc_to_list
+**
+** Description      Add a service into explore pending list
+**
+** Returns          status
+**
+*******************************************************************************/
+static tBTA_GATT_STATUS bta_gattc_add_srvc_to_list(tBTA_GATTC_SERV *p_srvc_cb,
+                                                   UINT16 s_handle, UINT16 e_handle,
+                                                   tBT_UUID uuid, BOOLEAN is_primary)
+{
+    tBTA_GATTC_ATTR_REC *p_rec = NULL;
+    tBTA_GATT_STATUS    status = BTA_GATT_OK;
+
+    if (p_srvc_cb->p_srvc_list && p_srvc_cb->next_avail_idx < BTA_GATTC_MAX_CACHE_CHAR)
+    {
+        p_rec = p_srvc_cb->p_srvc_list + p_srvc_cb->next_avail_idx;
+
+        APPL_TRACE_DEBUG("%s handle=%d, service type=0x%04x",
+                            __func__, s_handle, uuid.uu.uuid16);
+
+        p_rec->s_handle     = s_handle;
+        p_rec->e_handle     = e_handle;
+        p_rec->is_primary   = is_primary;
+        memcpy(&p_rec->uuid, &uuid, sizeof(tBT_UUID));
+
+        p_srvc_cb->total_srvc ++;
+        p_srvc_cb->next_avail_idx ++;
+    }
+    else
+    {   /* allocate bigger buffer ?? */
+        status = GATT_DB_FULL;
+
+        APPL_TRACE_ERROR("service not added, no resources or wrong state");
+    }
+    return status;
+}
+/*******************************************************************************
+**
+** Function         bta_gattc_add_char_to_list
+**
+** Description      Add a characteristic into explore pending list
+**
+** Returns          status
+**
+*******************************************************************************/
+static tBTA_GATT_STATUS bta_gattc_add_char_to_list(tBTA_GATTC_SERV *p_srvc_cb,
+                                                   UINT16 decl_handle, UINT16 value_handle,
+                                                   tBT_UUID uuid, UINT8 property)
+{
+    tBTA_GATTC_ATTR_REC *p_rec = NULL;
+    tBTA_GATT_STATUS    status = BTA_GATT_OK;
+
+    if (p_srvc_cb->p_srvc_list == NULL)
+    {
+        APPL_TRACE_ERROR("No service available, unexpected char discovery result");
+        status = BTA_GATT_INTERNAL_ERROR;
+    }
+    else if (p_srvc_cb->next_avail_idx < BTA_GATTC_MAX_CACHE_CHAR)
+    {
+
+        p_rec = p_srvc_cb->p_srvc_list + p_srvc_cb->next_avail_idx;
+
+        p_srvc_cb->total_char ++;
+
+        p_rec->s_handle = value_handle;
+        p_rec->char_decl_handle = decl_handle;
+        p_rec->property = property;
+        p_rec->e_handle = (p_srvc_cb->p_srvc_list + p_srvc_cb->cur_srvc_idx)->e_handle;
+        memcpy(&p_rec->uuid, &uuid, sizeof(tBT_UUID));
+
+        /* update the endind handle of pervious characteristic if available */
+        if (p_srvc_cb->total_char > 1)
+        {
+            p_rec -= 1;
+            p_rec->e_handle = decl_handle - 1;
+        }
+        p_srvc_cb->next_avail_idx ++;
+    }
+    else
+    {
+        APPL_TRACE_ERROR("char not added, no resources");
+        /* allocate bigger buffer ?? */
+        status = BTA_GATT_DB_FULL;
+    }
+    return status;
+
+}
+
+/*******************************************************************************
+**
+** Function         bta_gattc_sdp_callback
+**
+** Description      Process the discovery result from sdp
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_gattc_sdp_callback(UINT16 sdp_status, void* user_data)
+{
+    tSDP_DISC_REC       *p_sdp_rec = NULL;
+    tBT_UUID            service_uuid;
+    tSDP_PROTOCOL_ELEM  pe;
+    UINT16              start_handle = 0, end_handle = 0;
+    tBTA_GATTC_CB_DATA  *cb_data = user_data;
+    tBTA_GATTC_SERV     *p_srvc_cb = bta_gattc_find_scb_by_cid(cb_data->sdp_conn_id);
+
+    if (((sdp_status == SDP_SUCCESS) || (sdp_status == SDP_DB_FULL)) && p_srvc_cb != NULL)
+    {
+        do
+        {
+            /* find a service record, report it */
+            p_sdp_rec = SDP_FindServiceInDb(cb_data->p_sdp_db, 0, p_sdp_rec);
+            if (p_sdp_rec)
+            {
+                if (SDP_FindServiceUUIDInRec(p_sdp_rec, &service_uuid))
+                {
+
+                    if (SDP_FindProtocolListElemInRec(p_sdp_rec, UUID_PROTOCOL_ATT, &pe))
+                    {
+                        start_handle    = (UINT16) pe.params[0];
+                        end_handle      = (UINT16) pe.params[1];
+
+#if (defined BTA_GATT_DEBUG && BTA_GATT_DEBUG == TRUE)
+                        APPL_TRACE_EVENT("Found ATT service [0x%04x] handle[0x%04x ~ 0x%04x]",
+                                        service_uuid.uu.uuid16, start_handle, end_handle);
+#endif
+
+                        if (GATT_HANDLE_IS_VALID(start_handle) && GATT_HANDLE_IS_VALID(end_handle)&&
+                            p_srvc_cb != NULL)
+                        {
+                            /* discover services result, add services into a service list */
+                            bta_gattc_add_srvc_to_list(p_srvc_cb,
+                                                       start_handle,
+                                                       end_handle,
+                                                       service_uuid,
+                                                       TRUE);
+                        }
+                        else
+                        {
+                            APPL_TRACE_ERROR("invalid start_handle = %d end_handle = %d",
+                                                start_handle, end_handle);
+                        }
+                }
+
+
+                }
+            }
+        } while (p_sdp_rec);
+    }
+
+    if ( p_srvc_cb != NULL)
+    {
+        /* start discover primary service */
+        bta_gattc_explore_srvc(cb_data->sdp_conn_id, p_srvc_cb);
+    }
+    else
+    {
+        APPL_TRACE_ERROR("GATT service discovery is done on unknown connection");
+    }
+
+    /* both were allocated in bta_gattc_sdp_service_disc */
+    osi_free(cb_data->p_sdp_db);
+    osi_free(cb_data);
+}
+/*******************************************************************************
+**
+** Function         bta_gattc_sdp_service_disc
+**
+** Description      Start DSP Service Discovert
+**
+** Returns          void
+**
+*******************************************************************************/
+static tBTA_GATT_STATUS bta_gattc_sdp_service_disc(UINT16 conn_id, tBTA_GATTC_SERV *p_server_cb)
+{
+    tSDP_UUID       uuid;
+    UINT16          num_attrs = 2;
+    UINT16          attr_list[2];
+
+    memset (&uuid, 0, sizeof(tSDP_UUID));
+
+    uuid.len = LEN_UUID_16;
+    uuid.uu.uuid16 = UUID_PROTOCOL_ATT;
+
+    /*
+     * On success, cb_data will be freed inside bta_gattc_sdp_callback,
+     * otherwise it will be freed within this function.
+     */
+    tBTA_GATTC_CB_DATA *cb_data =
+        (tBTA_GATTC_CB_DATA *)osi_malloc(sizeof(tBTA_GATTC_CB_DATA));
+
+    cb_data->p_sdp_db = (tSDP_DISCOVERY_DB *)osi_malloc(BTA_GATT_SDP_DB_SIZE);
+    attr_list[0] = ATTR_ID_SERVICE_CLASS_ID_LIST;
+    attr_list[1] = ATTR_ID_PROTOCOL_DESC_LIST;
+
+    SDP_InitDiscoveryDb(cb_data->p_sdp_db, BTA_GATT_SDP_DB_SIZE, 1,
+                         &uuid, num_attrs, attr_list);
+
+    if (!SDP_ServiceSearchAttributeRequest2(p_server_cb->server_bda,
+                                          cb_data->p_sdp_db, &bta_gattc_sdp_callback, cb_data))
+    {
+        osi_free(cb_data->p_sdp_db);
+        osi_free(cb_data);
+        return BTA_GATT_ERROR;
+    }
+
+    cb_data->sdp_conn_id = conn_id;
+    return BTA_GATT_OK;
+}
+/*******************************************************************************
+**
+** Function         bta_gattc_disc_res_cback
+**                  bta_gattc_disc_cmpl_cback
+**
+** Description      callback functions to GATT client stack.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_gattc_disc_res_cback (UINT16 conn_id, tGATT_DISC_TYPE disc_type, tGATT_DISC_RES *p_data)
+{
+    tBTA_GATTC_SERV * p_srvc_cb = NULL;
+    BOOLEAN          pri_srvc;
+    tBTA_GATTC_CLCB *p_clcb = bta_gattc_find_clcb_by_conn_id(conn_id);
+
+    p_srvc_cb = bta_gattc_find_scb_by_cid(conn_id);
+
+    if (p_srvc_cb != NULL && p_clcb != NULL && p_clcb->state == BTA_GATTC_DISCOVER_ST)
+    {
+        switch (disc_type)
+        {
+            case GATT_DISC_SRVC_ALL:
+                /* discover services result, add services into a service list */
+                bta_gattc_add_srvc_to_list(p_srvc_cb,
+                                           p_data->handle,
+                                           p_data->value.group_value.e_handle,
+                                           p_data->value.group_value.service_type,
+                                           TRUE);
+
+                break;
+            case GATT_DISC_SRVC_BY_UUID:
+                bta_gattc_add_srvc_to_list(p_srvc_cb,
+                                           p_data->handle,
+                                           p_data->value.group_value.e_handle,
+                                           p_data->value.group_value.service_type,
+                                           TRUE);
+                break;
+
+            case GATT_DISC_INC_SRVC:
+                /* add included service into service list if it's secondary or it never showed up
+                   in the primary service search */
+                pri_srvc = bta_gattc_srvc_in_list(p_srvc_cb,
+                                                  p_data->value.incl_service.s_handle,
+                                                  p_data->value.incl_service.e_handle,
+                                                  p_data->value.incl_service.service_type);
+
+                if (!pri_srvc)
+                    bta_gattc_add_srvc_to_list(p_srvc_cb,
+                                               p_data->value.incl_service.s_handle,
+                                               p_data->value.incl_service.e_handle,
+                                               p_data->value.incl_service.service_type,
+                                               FALSE);
+                /* add into database */
+                bta_gattc_add_attr_to_cache(p_srvc_cb,
+                                            p_data->handle,
+                                            &p_data->value.incl_service.service_type,
+                                            pri_srvc,
+                                            p_data->value.incl_service.s_handle,
+                                            BTA_GATTC_ATTR_TYPE_INCL_SRVC);
+                break;
+
+            case GATT_DISC_CHAR:
+                /* add char value into database */
+                bta_gattc_add_char_to_list(p_srvc_cb,
+                                           p_data->handle,
+                                           p_data->value.dclr_value.val_handle,
+                                           p_data->value.dclr_value.char_uuid,
+                                           p_data->value.dclr_value.char_prop);
+                break;
+
+            case GATT_DISC_CHAR_DSCPT:
+                bta_gattc_add_attr_to_cache(p_srvc_cb, p_data->handle, &p_data->type, 0,
+                                            0 /* incl_srvc_handle */,
+                                            BTA_GATTC_ATTR_TYPE_CHAR_DESCR);
+                break;
+        }
+    }
+}
+void bta_gattc_disc_cmpl_cback (UINT16 conn_id, tGATT_DISC_TYPE disc_type, tGATT_STATUS status)
+{
+    tBTA_GATTC_SERV * p_srvc_cb;
+    tBTA_GATTC_CLCB *p_clcb = bta_gattc_find_clcb_by_conn_id(conn_id);
+
+    if ( p_clcb && (status != GATT_SUCCESS || p_clcb->status != GATT_SUCCESS) )
+    {
+        if (status == GATT_SUCCESS)
+            p_clcb->status = status;
+        bta_gattc_sm_execute(p_clcb, BTA_GATTC_DISCOVER_CMPL_EVT, NULL);
+        return;
+    }
+    p_srvc_cb = bta_gattc_find_scb_by_cid(conn_id);
+
+    if (p_srvc_cb != NULL)
+    {
+        switch (disc_type)
+        {
+            case GATT_DISC_SRVC_ALL:
+            case GATT_DISC_SRVC_BY_UUID:
+#if (defined BTA_GATT_DEBUG && BTA_GATT_DEBUG == TRUE)
+                bta_gattc_display_explore_record(p_srvc_cb->p_srvc_list, p_srvc_cb->next_avail_idx);
+#endif
+                bta_gattc_explore_srvc(conn_id, p_srvc_cb);
+                break;
+
+            case GATT_DISC_INC_SRVC:
+                bta_gattc_incl_srvc_disc_cmpl(conn_id, p_srvc_cb);
+
+                break;
+
+            case GATT_DISC_CHAR:
+#if (defined BTA_GATT_DEBUG && BTA_GATT_DEBUG == TRUE)
+                bta_gattc_display_explore_record(p_srvc_cb->p_srvc_list, p_srvc_cb->next_avail_idx);
+#endif
+                bta_gattc_char_disc_cmpl(conn_id, p_srvc_cb);
+                break;
+
+            case GATT_DISC_CHAR_DSCPT:
+                bta_gattc_char_dscpt_disc_cmpl(conn_id, p_srvc_cb);
+                break;
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_gattc_search_service
+**
+** Description      search local cache for matching service record.
+**
+** Returns          FALSE if map can not be found.
+**
+*******************************************************************************/
+void bta_gattc_search_service(tBTA_GATTC_CLCB *p_clcb, tBT_UUID *p_uuid)
+{
+    tBTA_GATTC          cb_data;
+
+    if (!p_clcb->p_srcb->p_srvc_cache || list_is_empty(p_clcb->p_srcb->p_srvc_cache))
+        return;
+
+    for (list_node_t *sn = list_begin(p_clcb->p_srcb->p_srvc_cache);
+         sn != list_end(p_clcb->p_srcb->p_srvc_cache); sn = list_next(sn)) {
+        tBTA_GATTC_SERVICE *p_cache = list_node(sn);
+
+        if (!bta_gattc_uuid_compare(p_uuid, &p_cache->uuid, FALSE))
+            continue;
+
+#if (defined BTA_GATT_DEBUG && BTA_GATT_DEBUG == TRUE)
+        APPL_TRACE_DEBUG("found service [0x%04x], inst[%d] handle [%d]",
+                          p_cache->uuid.uu.uuid16,
+                          p_cache->handle,
+                          p_cache->s_handle);
+#endif
+        if (!p_clcb->p_rcb->p_cback)
+            continue;
+
+        memset(&cb_data, 0, sizeof(tBTA_GATTC));
+
+        cb_data.srvc_res.conn_id = p_clcb->bta_conn_id;
+        cb_data.srvc_res.service_uuid.inst_id = p_cache->handle;
+        memcpy(&cb_data.srvc_res.service_uuid.uuid, &p_cache->uuid, sizeof(tBTA_GATT_ID));
+
+        (* p_clcb->p_rcb->p_cback)(BTA_GATTC_SEARCH_RES_EVT, &cb_data);
+    }
+}
+
+list_t* bta_gattc_get_services_srcb(tBTA_GATTC_SERV *p_srcb) {
+    if (!p_srcb || !p_srcb->p_srvc_cache || list_is_empty(p_srcb->p_srvc_cache))
+        return NULL;
+
+    return p_srcb->p_srvc_cache;
+}
+
+const list_t* bta_gattc_get_services(UINT16 conn_id) {
+    tBTA_GATTC_CLCB *p_clcb = bta_gattc_find_clcb_by_conn_id(conn_id);
+
+    if (p_clcb == NULL )
+        return NULL;
+
+    tBTA_GATTC_SERV *p_srcb = p_clcb->p_srcb;
+
+    return bta_gattc_get_services_srcb(p_srcb);
+}
+
+tBTA_GATTC_SERVICE*  bta_gattc_find_matching_service(const list_t *services, UINT16 handle) {
+    if (!services || list_is_empty(services))
+        return NULL;
+
+    for (list_node_t *sn = list_begin(services);
+         sn != list_end(services); sn = list_next(sn)) {
+        tBTA_GATTC_SERVICE *service = list_node(sn);
+
+        if (handle >= service->s_handle && handle <= service->e_handle)
+            return service;
+    }
+
+    return NULL;
+}
+
+const tBTA_GATTC_SERVICE*  bta_gattc_get_service_for_handle_srcb(tBTA_GATTC_SERV *p_srcb, UINT16 handle) {
+    const list_t *services = bta_gattc_get_services_srcb(p_srcb);
+
+    return bta_gattc_find_matching_service(services, handle);
+}
+
+const tBTA_GATTC_SERVICE*  bta_gattc_get_service_for_handle(UINT16 conn_id, UINT16 handle) {
+    const list_t *services = bta_gattc_get_services(conn_id);
+
+    return bta_gattc_find_matching_service(services, handle);
+}
+
+tBTA_GATTC_CHARACTERISTIC*  bta_gattc_get_characteristic_srcb(tBTA_GATTC_SERV *p_srcb, UINT16 handle) {
+    const tBTA_GATTC_SERVICE* service = bta_gattc_get_service_for_handle_srcb(p_srcb, handle);
+
+    if (!service)
+        return NULL;
+
+    for (list_node_t *cn = list_begin(service->characteristics);
+         cn != list_end(service->characteristics); cn = list_next(cn)) {
+        tBTA_GATTC_CHARACTERISTIC *p_char = list_node(cn);
+        if (handle == p_char->handle)
+            return p_char;
+    }
+
+    return NULL;
+}
+
+tBTA_GATTC_CHARACTERISTIC*  bta_gattc_get_characteristic(UINT16 conn_id, UINT16 handle) {
+   tBTA_GATTC_CLCB *p_clcb = bta_gattc_find_clcb_by_conn_id(conn_id);
+
+    if (p_clcb == NULL )
+        return NULL;
+
+    tBTA_GATTC_SERV *p_srcb = p_clcb->p_srcb;
+    return bta_gattc_get_characteristic_srcb(p_srcb, handle);
+}
+
+tBTA_GATTC_DESCRIPTOR*  bta_gattc_get_descriptor_srcb(tBTA_GATTC_SERV *p_srcb, UINT16 handle) {
+    const tBTA_GATTC_SERVICE* service = bta_gattc_get_service_for_handle_srcb(p_srcb, handle);
+
+    if (!service) {
+        return NULL;
+    }
+
+    for (list_node_t *cn = list_begin(service->characteristics);
+         cn != list_end(service->characteristics); cn = list_next(cn)) {
+        tBTA_GATTC_CHARACTERISTIC *p_char = list_node(cn);
+        for (list_node_t *dn = list_begin(p_char->descriptors);
+             dn != list_end(p_char->descriptors); dn = list_next(dn)) {
+            tBTA_GATTC_DESCRIPTOR *p_desc = list_node(dn);
+            if (handle == p_desc->handle)
+                return p_desc;
+        }
+    }
+
+    return NULL;
+}
+
+tBTA_GATTC_DESCRIPTOR*  bta_gattc_get_descriptor(UINT16 conn_id, UINT16 handle) {
+    tBTA_GATTC_CLCB *p_clcb = bta_gattc_find_clcb_by_conn_id(conn_id);
+
+    if (p_clcb == NULL )
+        return NULL;
+
+    tBTA_GATTC_SERV *p_srcb = p_clcb->p_srcb;
+    return bta_gattc_get_descriptor_srcb(p_srcb, handle);
+}
+
+/*******************************************************************************
+**
+** Function         bta_gattc_fill_gatt_db_el
+**
+** Description      fill a btgatt_db_element_t value
+**
+** Returns          None.
+**
+*******************************************************************************/
+void bta_gattc_fill_gatt_db_el(btgatt_db_element_t *p_attr,
+                               bt_gatt_db_attribute_type_t type,
+                               UINT16 att_handle,
+                               UINT16 s_handle, UINT16 e_handle,
+                               UINT16 id, tBT_UUID uuid, UINT8 prop)
+{
+    p_attr->type             = type;
+    p_attr->attribute_handle = att_handle;
+    p_attr->start_handle     = s_handle;
+    p_attr->end_handle       = e_handle;
+    p_attr->id               = id;
+    p_attr->properties       = prop;
+    bta_to_btif_uuid(&p_attr->uuid, &uuid);
+}
+
+/*******************************************************************************
+** Returns          number of elements inside db from start_handle to end_handle
+*******************************************************************************/
+static size_t bta_gattc_get_db_size(list_t *services,
+                                 UINT16 start_handle, UINT16 end_handle) {
+    if (!services || list_is_empty(services))
+        return 0;
+
+    size_t db_size = 0;
+
+    for (list_node_t *sn = list_begin(services);
+         sn != list_end(services); sn = list_next(sn)) {
+        tBTA_GATTC_SERVICE *p_cur_srvc = list_node(sn);
+
+        if (p_cur_srvc->s_handle < start_handle)
+            continue;
+
+        if (p_cur_srvc->e_handle > end_handle)
+            break;
+
+        db_size++;
+        if (!p_cur_srvc->characteristics || list_is_empty(p_cur_srvc->characteristics))
+            continue;
+
+        for (list_node_t *cn = list_begin(p_cur_srvc->characteristics);
+             cn != list_end(p_cur_srvc->characteristics); cn = list_next(cn)) {
+            tBTA_GATTC_CHARACTERISTIC *p_char = list_node(cn);
+            db_size++;
+
+            if (p_char->descriptors)
+                db_size += list_length(p_char->descriptors);
+        }
+
+        if (p_cur_srvc->included_svc) {
+            db_size += list_length(p_cur_srvc->included_svc);
+        }
+    }
+
+    return db_size;
+}
+
+/*******************************************************************************
+**
+** Function         bta_gattc_get_gatt_db_impl
+**
+** Description      copy the server GATT database into db parameter.
+**
+** Parameters       p_srvc_cb: server.
+**                  db: output parameter which will contain GATT database copy.
+**                      Caller is responsible for freeing it.
+**                  count: output parameter which will contain number of
+**                  elements in database.
+**
+** Returns          None.
+**
+*******************************************************************************/
+static void bta_gattc_get_gatt_db_impl(tBTA_GATTC_SERV *p_srvc_cb,
+                                       UINT16 start_handle, UINT16 end_handle,
+                                       btgatt_db_element_t **db,
+                                       int *count)
+{
+    APPL_TRACE_DEBUG("%s: start_handle 0x%04x, end_handle 0x%04x",
+                     __func__, start_handle, end_handle);
+
+    if (!p_srvc_cb->p_srvc_cache || list_is_empty(p_srvc_cb->p_srvc_cache)) {
+        *count = 0;
+        *db = NULL;
+        return;
+    }
+
+    size_t db_size = bta_gattc_get_db_size(p_srvc_cb->p_srvc_cache, start_handle, end_handle);
+
+    void* buffer = osi_malloc(db_size * sizeof(btgatt_db_element_t));
+    btgatt_db_element_t *curr_db_attr = buffer;
+
+    for (list_node_t *sn = list_begin(p_srvc_cb->p_srvc_cache);
+         sn != list_end(p_srvc_cb->p_srvc_cache); sn = list_next(sn)) {
+        tBTA_GATTC_SERVICE *p_cur_srvc = list_node(sn);
+
+        if (p_cur_srvc->s_handle < start_handle)
+            continue;
+
+        if (p_cur_srvc->e_handle > end_handle)
+            break;
+
+        bta_gattc_fill_gatt_db_el(curr_db_attr,
+                                  p_cur_srvc->is_primary ?
+                                      BTGATT_DB_PRIMARY_SERVICE :
+                                      BTGATT_DB_SECONDARY_SERVICE,
+                                  0 /* att_handle */,
+                                  p_cur_srvc->s_handle,
+                                  p_cur_srvc->e_handle,
+                                  p_cur_srvc->s_handle,
+                                  p_cur_srvc->uuid,
+                                  0 /* prop */);
+        curr_db_attr++;
+
+        if (!p_cur_srvc->characteristics || list_is_empty(p_cur_srvc->characteristics))
+            continue;
+
+        for (list_node_t *cn = list_begin(p_cur_srvc->characteristics);
+             cn != list_end(p_cur_srvc->characteristics); cn = list_next(cn)) {
+            tBTA_GATTC_CHARACTERISTIC *p_char = list_node(cn);
+
+            bta_gattc_fill_gatt_db_el(curr_db_attr,
+                                      BTGATT_DB_CHARACTERISTIC,
+                                      p_char->handle,
+                                      0 /* s_handle */,
+                                      0 /* e_handle */,
+                                      p_char->handle,
+                                      p_char->uuid,
+                                      p_char->properties);
+            curr_db_attr++;
+
+            if (!p_char->descriptors || list_is_empty(p_char->descriptors))
+                continue;
+
+            for (list_node_t *dn = list_begin(p_char->descriptors);
+                 dn != list_end(p_char->descriptors); dn = list_next(dn)) {
+                tBTA_GATTC_DESCRIPTOR *p_desc = list_node(dn);
+
+                bta_gattc_fill_gatt_db_el(curr_db_attr,
+                                          BTGATT_DB_DESCRIPTOR,
+                                          p_desc->handle,
+                                          0 /* s_handle */,
+                                          0 /* e_handle */,
+                                          p_desc->handle,
+                                          p_desc->uuid,
+                                          0 /* property */);
+                curr_db_attr++;
+            }
+        }
+
+        if (!p_cur_srvc->included_svc || list_is_empty(p_cur_srvc->included_svc))
+            continue;
+
+        for (list_node_t *isn = list_begin(p_cur_srvc->included_svc);
+             isn != list_end(p_cur_srvc->included_svc); isn = list_next(isn)) {
+            tBTA_GATTC_INCLUDED_SVC *p_isvc = list_node(isn);
+
+            bta_gattc_fill_gatt_db_el(curr_db_attr,
+                                      BTGATT_DB_INCLUDED_SERVICE,
+                                      p_isvc->handle,
+                                      0 /* s_handle */,
+                                      0 /* e_handle */,
+                                      p_isvc->handle,
+                                      p_isvc->uuid,
+                                      0 /* property */);
+            curr_db_attr++;
+        }
+    }
+
+    *db = buffer;
+    *count = db_size;
+}
+
+/*******************************************************************************
+**
+** Function         bta_gattc_get_gatt_db
+**
+** Description      copy the server GATT database into db parameter.
+**
+** Parameters       conn_id: connection ID which identify the server.
+**                  db: output parameter which will contain GATT database copy.
+**                      Caller is responsible for freeing it.
+**                  count: number of elements in database.
+**
+** Returns          None.
+**
+*******************************************************************************/
+void bta_gattc_get_gatt_db(UINT16 conn_id, UINT16 start_handle, UINT16 end_handle, btgatt_db_element_t **db, int *count)
+{
+    tBTA_GATTC_CLCB *p_clcb = bta_gattc_find_clcb_by_conn_id(conn_id);
+
+    LOG_DEBUG(LOG_TAG, "%s", __func__);
+    if (p_clcb == NULL) {
+        APPL_TRACE_ERROR("Unknown conn ID: %d", conn_id);
+        return;
+    }
+
+    if (p_clcb->state != BTA_GATTC_CONN_ST) {
+        APPL_TRACE_ERROR("server cache not available, CLCB state = %d",
+                         p_clcb->state);
+        return;
+    }
+
+    if (!p_clcb->p_srcb || p_clcb->p_srcb->p_srvc_list || /* no active discovery */
+        !p_clcb->p_srcb->p_srvc_cache) {
+        APPL_TRACE_ERROR("No server cache available");
+    }
+
+    bta_gattc_get_gatt_db_impl(p_clcb->p_srcb, start_handle, end_handle, db, count);
+}
+
+/*******************************************************************************
+**
+** Function         bta_gattc_rebuild_cache
+**
+** Description      rebuild server cache from NV cache.
+**
+** Parameters
+**
+** Returns          None.
+**
+*******************************************************************************/
+void bta_gattc_rebuild_cache(tBTA_GATTC_SERV *p_srvc_cb, UINT16 num_attr,
+                             tBTA_GATTC_NV_ATTR *p_attr)
+{
+    /* first attribute loading, initialize buffer */
+    APPL_TRACE_ERROR("%s: bta_gattc_rebuild_cache", __func__);
+
+    list_free(p_srvc_cb->p_srvc_cache);
+    p_srvc_cb->p_srvc_cache = NULL;
+
+    while (num_attr > 0 && p_attr != NULL)
+    {
+        switch (p_attr->attr_type)
+        {
+            case BTA_GATTC_ATTR_TYPE_SRVC:
+                bta_gattc_add_srvc_to_cache(p_srvc_cb,
+                                            p_attr->s_handle,
+                                            p_attr->e_handle,
+                                            &p_attr->uuid,
+                                            p_attr->is_primary);
+                break;
+
+            case BTA_GATTC_ATTR_TYPE_CHAR:
+                //TODO(jpawlowski): store decl_handle properly.
+                bta_gattc_add_char_to_cache(p_srvc_cb,
+                                            p_attr->s_handle,
+                                            p_attr->s_handle,
+                                            &p_attr->uuid,
+                                            p_attr->prop);
+                break;
+
+            case BTA_GATTC_ATTR_TYPE_CHAR_DESCR:
+            case BTA_GATTC_ATTR_TYPE_INCL_SRVC:
+                bta_gattc_add_attr_to_cache(p_srvc_cb,
+                                            p_attr->s_handle,
+                                            &p_attr->uuid,
+                                            p_attr->prop,
+                                            p_attr->incl_srvc_handle,
+                                            p_attr->attr_type);
+                break;
+        }
+        p_attr ++;
+        num_attr --;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_gattc_fill_nv_attr
+**
+** Description      fill a NV attribute entry value
+**
+** Returns          None.
+**
+*******************************************************************************/
+void bta_gattc_fill_nv_attr(tBTA_GATTC_NV_ATTR *p_attr, UINT8 type, UINT16 s_handle,
+                            UINT16 e_handle, tBT_UUID uuid, UINT8 prop, UINT16 incl_srvc_handle,
+                            BOOLEAN is_primary)
+{
+    p_attr->s_handle    = s_handle;
+    p_attr->e_handle    = e_handle;
+    p_attr->attr_type   = type;
+    p_attr->is_primary  = is_primary;
+    p_attr->id          = 0;
+    p_attr->prop        = prop;
+    p_attr->incl_srvc_handle = incl_srvc_handle;
+
+    memcpy(&p_attr->uuid, &uuid, sizeof(tBT_UUID));
+}
+
+/*******************************************************************************
+**
+** Function         bta_gattc_cache_save
+**
+** Description      save the server cache into NV
+**
+** Returns          None.
+**
+*******************************************************************************/
+void bta_gattc_cache_save(tBTA_GATTC_SERV *p_srvc_cb, UINT16 conn_id)
+{
+    if (!p_srvc_cb->p_srvc_cache || list_is_empty(p_srvc_cb->p_srvc_cache))
+        return;
+
+    int i = 0;
+    size_t db_size = bta_gattc_get_db_size(p_srvc_cb->p_srvc_cache, 0x0000, 0xFFFF);
+    tBTA_GATTC_NV_ATTR *nv_attr = osi_malloc(db_size * sizeof(tBTA_GATTC_NV_ATTR));
+
+    for (list_node_t *sn = list_begin(p_srvc_cb->p_srvc_cache);
+         sn != list_end(p_srvc_cb->p_srvc_cache); sn = list_next(sn)) {
+        tBTA_GATTC_SERVICE *p_cur_srvc = list_node(sn);
+
+        bta_gattc_fill_nv_attr(&nv_attr[i++],
+                                BTA_GATTC_ATTR_TYPE_SRVC,
+                               p_cur_srvc->s_handle,
+                               p_cur_srvc->e_handle,
+                               p_cur_srvc->uuid,
+                               0 /* properties */,
+                               0 /* incl_srvc_handle */,
+                               p_cur_srvc->is_primary);
+    }
+
+    for (list_node_t *sn = list_begin(p_srvc_cb->p_srvc_cache);
+         sn != list_end(p_srvc_cb->p_srvc_cache); sn = list_next(sn)) {
+        tBTA_GATTC_SERVICE *p_cur_srvc = list_node(sn);
+
+        if (!p_cur_srvc->characteristics || list_is_empty(p_cur_srvc->characteristics))
+            continue;
+
+        for (list_node_t *cn = list_begin(p_cur_srvc->characteristics);
+             cn != list_end(p_cur_srvc->characteristics); cn = list_next(cn)) {
+            tBTA_GATTC_CHARACTERISTIC *p_char = list_node(cn);
+
+            bta_gattc_fill_nv_attr(&nv_attr[i++],
+                                   BTA_GATTC_ATTR_TYPE_CHAR,
+                                   p_char->handle,
+                                   0,
+                                   p_char->uuid,
+                                   p_char->properties,
+                                   0 /* incl_srvc_handle */,
+                                   FALSE);
+
+            if (!p_char->descriptors || list_is_empty(p_char->descriptors))
+                continue;
+
+            for (list_node_t *dn = list_begin(p_char->descriptors);
+                 dn != list_end(p_char->descriptors); dn = list_next(dn)) {
+                tBTA_GATTC_DESCRIPTOR *p_desc = list_node(dn);
+
+                bta_gattc_fill_nv_attr(&nv_attr[i++],
+                                       BTA_GATTC_ATTR_TYPE_CHAR_DESCR,
+                                       p_desc->handle,
+                                       0,
+                                       p_desc->uuid,
+                                       0 /* properties */,
+                                       0 /* incl_srvc_handle */,
+                                       FALSE);
+            }
+        }
+
+        if (!p_cur_srvc->included_svc || list_is_empty(p_cur_srvc->included_svc))
+            continue;
+
+        for (list_node_t *an = list_begin(p_cur_srvc->included_svc);
+             an != list_end(p_cur_srvc->included_svc); an = list_next(an)) {
+            tBTA_GATTC_INCLUDED_SVC *p_isvc = list_node(an);
+
+            bta_gattc_fill_nv_attr(&nv_attr[i++],
+                                   BTA_GATTC_ATTR_TYPE_INCL_SRVC,
+                                   p_isvc->handle,
+                                   0,
+                                   p_isvc->uuid,
+                                   0 /* properties */,
+                                   p_isvc->included_service->s_handle,
+                                   FALSE);
+        }
+    }
+
+    bta_gattc_cache_write(p_srvc_cb->server_bda, db_size, nv_attr);
+    osi_free(nv_attr);
+}
+
+/*******************************************************************************
+**
+** Function         bta_gattc_cache_load
+**
+** Description      Load GATT cache from storage for server.
+**
+** Parameter        p_clcb: pointer to server clcb, that will
+**                          be filled from storage
+** Returns          true on success, false otherwise
+**
+*******************************************************************************/
+bool bta_gattc_cache_load(tBTA_GATTC_CLCB *p_clcb)
+{
+    char fname[255] = {0};
+    bta_gattc_generate_cache_file_name(fname, p_clcb->p_srcb->server_bda);
+
+    FILE *fd = fopen(fname, "rb");
+    if (!fd) {
+        APPL_TRACE_ERROR("%s: can't open GATT cache file %s for reading, error: %s",
+                         __func__, fname, strerror(errno));
+        return false;
+    }
+
+    UINT16 cache_ver = 0;
+    tBTA_GATTC_NV_ATTR  *attr = NULL;
+    bool success = false;
+
+    if (fread(&cache_ver, sizeof(UINT16), 1, fd) != 1) {
+        APPL_TRACE_ERROR("%s: can't read GATT cache version from: %s", __func__, fname);
+        goto done;
+    }
+
+    if (cache_ver != GATT_CACHE_VERSION) {
+        APPL_TRACE_ERROR("%s: wrong GATT cache version: %s", __func__, fname);
+        goto done;
+    }
+
+    UINT16 num_attr = 0;
+
+    if (fread(&num_attr, sizeof(UINT16), 1, fd) != 1) {
+        APPL_TRACE_ERROR("%s: can't read number of GATT attributes: %s", __func__, fname);
+        goto done;
+    }
+
+    attr = osi_malloc(sizeof(tBTA_GATTC_NV_ATTR) * num_attr);
+
+    if (fread(attr, sizeof(tBTA_GATTC_NV_ATTR), 0xFF, fd) != num_attr) {
+        APPL_TRACE_ERROR("%s: can't read GATT attributes: %s", __func__, fname);
+        goto done;
+    }
+
+    bta_gattc_rebuild_cache(p_clcb->p_srcb, num_attr, attr);
+
+    success = true;
+
+done:
+    osi_free(attr);
+    fclose(fd);
+    return success;
+}
+
+/*******************************************************************************
+**
+** Function         bta_gattc_cache_write
+**
+** Description      This callout function is executed by GATT when a server cache
+**                  is available to save.
+**
+** Parameter        server_bda: server bd address of this cache belongs to
+**                  num_attr: number of attribute to be save.
+**                  attr: pointer to the list of attributes to save.
+** Returns
+**
+*******************************************************************************/
+static void bta_gattc_cache_write(BD_ADDR server_bda, UINT16 num_attr,
+                           tBTA_GATTC_NV_ATTR *attr)
+{
+    char fname[255] = {0};
+    bta_gattc_generate_cache_file_name(fname, server_bda);
+
+    FILE *fd = fopen(fname, "wb");
+    if (!fd) {
+        APPL_TRACE_ERROR("%s: can't open GATT cache file for writing: %s", __func__, fname);
+        return;
+    }
+
+    UINT16 cache_ver = GATT_CACHE_VERSION;
+    if (fwrite(&cache_ver, sizeof(UINT16), 1, fd) != 1) {
+        APPL_TRACE_ERROR("%s: can't write GATT cache version: %s", __func__, fname);
+        fclose(fd);
+        return;
+    }
+
+    if (fwrite(&num_attr, sizeof(UINT16), 1, fd) != 1) {
+        APPL_TRACE_ERROR("%s: can't write GATT cache attribute count: %s", __func__, fname);
+        fclose(fd);
+        return;
+    }
+
+    if (fwrite(attr, sizeof(tBTA_GATTC_NV_ATTR), num_attr, fd) != num_attr) {
+        APPL_TRACE_ERROR("%s: can't write GATT cache attributes: %s", __func__, fname);
+        fclose(fd);
+        return;
+    }
+
+    fclose(fd);
+}
+
+/*******************************************************************************
+**
+** Function         bta_gattc_cache_reset
+**
+** Description      This callout function is executed by GATTC to reset cache in
+**                  application
+**
+** Parameter        server_bda: server bd address of this cache belongs to
+**
+** Returns          void.
+**
+*******************************************************************************/
+void bta_gattc_cache_reset(BD_ADDR server_bda)
+{
+    BTIF_TRACE_DEBUG("%s", __func__);
+    char fname[255] = {0};
+    bta_gattc_generate_cache_file_name(fname, server_bda);
+    unlink(fname);
+}
+#endif /* BTA_GATT_INCLUDED */
+
diff --git a/rtkbt/code/bt/bta/gatt/bta_gattc_int.h b/rtkbt/code/bt/bta/gatt/bta_gattc_int.h
new file mode 100755
index 0000000..d895864
--- /dev/null
+++ b/rtkbt/code/bt/bta/gatt/bta_gattc_int.h
@@ -0,0 +1,501 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the private file for the file transfer client (FTC).
+ *
+ ******************************************************************************/
+#ifndef BTA_GATTC_INT_H
+#define BTA_GATTC_INT_H
+
+#include "bt_target.h"
+
+#include "osi/include/fixed_queue.h"
+#include "bta_sys.h"
+#include "bta_gatt_api.h"
+
+#include "bt_common.h"
+
+/*****************************************************************************
+**  Constants and data types
+*****************************************************************************/
+enum
+{
+    BTA_GATTC_API_OPEN_EVT   = BTA_SYS_EVT_START(BTA_ID_GATTC),
+    BTA_GATTC_INT_OPEN_FAIL_EVT,
+    BTA_GATTC_API_CANCEL_OPEN_EVT,
+    BTA_GATTC_INT_CANCEL_OPEN_OK_EVT,
+
+    BTA_GATTC_API_READ_EVT,
+    BTA_GATTC_API_WRITE_EVT,
+    BTA_GATTC_API_EXEC_EVT,
+    BTA_GATTC_API_CFG_MTU_EVT,
+
+    BTA_GATTC_API_CLOSE_EVT,
+
+    BTA_GATTC_API_SEARCH_EVT,
+    BTA_GATTC_API_CONFIRM_EVT,
+    BTA_GATTC_API_READ_MULTI_EVT,
+    BTA_GATTC_API_REFRESH_EVT,
+
+    BTA_GATTC_INT_CONN_EVT,
+    BTA_GATTC_INT_DISCOVER_EVT,
+    BTA_GATTC_DISCOVER_CMPL_EVT,
+    BTA_GATTC_OP_CMPL_EVT,
+    BTA_GATTC_INT_DISCONN_EVT,
+
+    BTA_GATTC_INT_START_IF_EVT,
+    BTA_GATTC_API_REG_EVT,
+    BTA_GATTC_API_DEREG_EVT,
+    BTA_GATTC_API_LISTEN_EVT,
+    BTA_GATTC_API_BROADCAST_EVT,
+    BTA_GATTC_API_DISABLE_EVT,
+    BTA_GATTC_ENC_CMPL_EVT
+};
+typedef UINT16 tBTA_GATTC_INT_EVT;
+
+#define BTA_GATTC_SERVICE_CHANGED_LEN    4
+
+/* max client application GATTC can support */
+#ifndef     BTA_GATTC_CL_MAX
+#define     BTA_GATTC_CL_MAX    32
+#endif
+
+/* max known devices GATTC can support */
+#ifndef     BTA_GATTC_KNOWN_SR_MAX
+#define     BTA_GATTC_KNOWN_SR_MAX    10
+#endif
+
+#define BTA_GATTC_CONN_MAX      GATT_MAX_PHY_CHANNEL
+
+#ifndef BTA_GATTC_CLCB_MAX
+    #define BTA_GATTC_CLCB_MAX      GATT_CL_MAX_LCB
+#endif
+
+#define BTA_GATTC_WRITE_PREPARE          GATT_WRITE_PREPARE
+
+
+/* internal strucutre for GATTC register API  */
+typedef struct
+{
+    BT_HDR                  hdr;
+    tBT_UUID                app_uuid;
+    tBTA_GATTC_CBACK        *p_cback;
+}tBTA_GATTC_API_REG;
+
+typedef struct
+{
+    BT_HDR                  hdr;
+    tBTA_GATTC_IF           client_if;
+}tBTA_GATTC_INT_START_IF;
+
+typedef tBTA_GATTC_INT_START_IF tBTA_GATTC_API_DEREG;
+typedef tBTA_GATTC_INT_START_IF tBTA_GATTC_INT_DEREG;
+
+typedef struct
+{
+    BT_HDR                  hdr;
+    BD_ADDR                 remote_bda;
+    tBTA_GATTC_IF           client_if;
+    BOOLEAN                 is_direct;
+    tBTA_TRANSPORT          transport;
+} tBTA_GATTC_API_OPEN;
+
+typedef tBTA_GATTC_API_OPEN tBTA_GATTC_API_CANCEL_OPEN;
+
+typedef struct
+{
+    BT_HDR                  hdr;
+    tBTA_GATT_AUTH_REQ      auth_req;
+    UINT16                  handle;
+    tBTA_GATTC_EVT          cmpl_evt;
+} tBTA_GATTC_API_READ;
+
+typedef struct
+{
+    BT_HDR                  hdr;
+    tBTA_GATT_AUTH_REQ      auth_req;
+    UINT16                  handle;
+    tBTA_GATTC_EVT          cmpl_evt;
+    tBTA_GATTC_WRITE_TYPE   write_type;
+    UINT16                  offset;
+    UINT16                  len;
+    UINT8                   *p_value;
+}tBTA_GATTC_API_WRITE;
+
+typedef struct
+{
+    BT_HDR                  hdr;
+    BOOLEAN                 is_execute;
+}tBTA_GATTC_API_EXEC;
+
+typedef struct
+{
+    BT_HDR                  hdr;
+    UINT16                  handle;
+} tBTA_GATTC_API_CONFIRM;
+
+typedef tGATT_CL_COMPLETE tBTA_GATTC_CMPL;
+
+typedef struct
+{
+    BT_HDR                  hdr;
+    UINT8                   op_code;
+    tGATT_STATUS            status;
+    tBTA_GATTC_CMPL         *p_cmpl;
+}tBTA_GATTC_OP_CMPL;
+
+typedef struct
+{
+    BT_HDR              hdr;
+    tBT_UUID            *p_srvc_uuid;
+}tBTA_GATTC_API_SEARCH;
+
+typedef struct
+{
+    BT_HDR                  hdr;
+    tBTA_GATT_AUTH_REQ      auth_req;
+    UINT8                   num_attr;
+    UINT16                  handles[GATT_MAX_READ_MULTI_HANDLES];
+}tBTA_GATTC_API_READ_MULTI;
+
+typedef struct
+{
+    BT_HDR                  hdr;
+    BD_ADDR_PTR             remote_bda;
+    tBTA_GATTC_IF           client_if;
+    BOOLEAN                 start;
+} tBTA_GATTC_API_LISTEN;
+
+
+typedef struct
+{
+    BT_HDR              hdr;
+    UINT16              mtu;
+}tBTA_GATTC_API_CFG_MTU;
+
+typedef struct
+{
+    BT_HDR                  hdr;
+    BD_ADDR                 remote_bda;
+    tBTA_GATTC_IF           client_if;
+    UINT8                   role;
+    tBT_TRANSPORT           transport;
+    tGATT_DISCONN_REASON    reason;
+}tBTA_GATTC_INT_CONN;
+
+typedef struct
+{
+    BT_HDR                  hdr;
+    BD_ADDR                 remote_bda;
+    tBTA_GATTC_IF           client_if;
+}tBTA_GATTC_ENC_CMPL;
+
+typedef union
+{
+    BT_HDR                      hdr;
+    tBTA_GATTC_API_REG          api_reg;
+    tBTA_GATTC_API_DEREG        api_dereg;
+    tBTA_GATTC_API_OPEN         api_conn;
+    tBTA_GATTC_API_CANCEL_OPEN  api_cancel_conn;
+    tBTA_GATTC_API_READ         api_read;
+    tBTA_GATTC_API_SEARCH       api_search;
+    tBTA_GATTC_API_WRITE        api_write;
+    tBTA_GATTC_API_CONFIRM      api_confirm;
+    tBTA_GATTC_API_EXEC         api_exec;
+    tBTA_GATTC_API_READ_MULTI   api_read_multi;
+    tBTA_GATTC_API_CFG_MTU      api_mtu;
+    tBTA_GATTC_OP_CMPL          op_cmpl;
+    tBTA_GATTC_INT_CONN         int_conn;
+    tBTA_GATTC_ENC_CMPL         enc_cmpl;
+
+    tBTA_GATTC_INT_START_IF     int_start_if;
+    tBTA_GATTC_INT_DEREG        int_dereg;
+    /* if peripheral role is supported */
+    tBTA_GATTC_API_LISTEN       api_listen;
+
+} tBTA_GATTC_DATA;
+
+
+/* GATT server cache on the client */
+
+typedef struct
+{
+    tBT_UUID            uuid;
+    UINT16              s_handle;
+    UINT16              e_handle;
+    // this field is set only for characteristic
+    UINT16              char_decl_handle;
+    BOOLEAN             is_primary;
+    tBTA_GATT_CHAR_PROP property;
+}tBTA_GATTC_ATTR_REC;
+
+
+#define BTA_GATTC_MAX_CACHE_CHAR    40
+#define BTA_GATTC_ATTR_LIST_SIZE    (BTA_GATTC_MAX_CACHE_CHAR * sizeof(tBTA_GATTC_ATTR_REC))
+
+#ifndef BTA_GATTC_CACHE_SRVR_SIZE
+    #define BTA_GATTC_CACHE_SRVR_SIZE   600
+#endif
+
+enum
+{
+    BTA_GATTC_IDLE_ST = 0,      /* Idle  */
+    BTA_GATTC_W4_CONN_ST,       /* Wait for connection -  (optional) */
+    BTA_GATTC_CONN_ST,          /* connected state */
+    BTA_GATTC_DISCOVER_ST       /* discover is in progress */
+};
+typedef UINT8 tBTA_GATTC_STATE;
+
+typedef struct
+{
+    BOOLEAN             in_use;
+    BD_ADDR             server_bda;
+    BOOLEAN             connected;
+
+#define BTA_GATTC_SERV_IDLE     0
+#define BTA_GATTC_SERV_LOAD     1
+#define BTA_GATTC_SERV_SAVE     2
+#define BTA_GATTC_SERV_DISC     3
+#define BTA_GATTC_SERV_DISC_ACT 4
+
+    UINT8               state;
+
+    list_t              *p_srvc_cache;  /* list of tBTA_GATTC_SERVICE */
+    UINT8               update_count;   /* indication received */
+    UINT8               num_clcb;       /* number of associated CLCB */
+
+
+    tBTA_GATTC_ATTR_REC *p_srvc_list;
+    UINT8               cur_srvc_idx;
+    UINT8               cur_char_idx;
+    UINT8               next_avail_idx;
+    UINT8               total_srvc;
+    UINT8               total_char;
+
+    UINT8               srvc_hdl_chg;   /* service handle change indication pending */
+    UINT16              attr_index;     /* cahce NV saving/loading attribute index */
+
+    UINT16              mtu;
+} tBTA_GATTC_SERV;
+
+#ifndef BTA_GATTC_NOTIF_REG_MAX
+#define BTA_GATTC_NOTIF_REG_MAX     15
+#endif
+
+typedef struct
+{
+    BOOLEAN             in_use;
+    BD_ADDR             remote_bda;
+    UINT16              handle;
+}tBTA_GATTC_NOTIF_REG;
+
+typedef struct
+{
+    tBTA_GATTC_CBACK        *p_cback;
+    BOOLEAN                 in_use;
+    tBTA_GATTC_IF           client_if;      /* client interface with BTE stack for this application */
+    UINT8                   num_clcb;       /* number of associated CLCB */
+    BOOLEAN                 dereg_pending;
+    tBT_UUID                app_uuid;
+    tBTA_GATTC_NOTIF_REG    notif_reg[BTA_GATTC_NOTIF_REG_MAX];
+}tBTA_GATTC_RCB;
+
+/* client channel is a mapping between a BTA client(cl_id) and a remote BD address */
+typedef struct
+{
+    UINT16              bta_conn_id;    /* client channel ID, unique for clcb */
+    BD_ADDR             bda;
+    tBTA_TRANSPORT      transport;      /* channel transport */
+    tBTA_GATTC_RCB      *p_rcb;         /* pointer to the registration CB */
+    tBTA_GATTC_SERV     *p_srcb;    /* server cache CB */
+    tBTA_GATTC_DATA     *p_q_cmd;   /* command in queue waiting for execution */
+
+#define BTA_GATTC_NO_SCHEDULE       0
+#define BTA_GATTC_DISC_WAITING      0x01
+#define BTA_GATTC_REQ_WAITING       0x10
+
+    UINT8               auto_update; /* auto update is waiting */
+    BOOLEAN             disc_active;
+    BOOLEAN             in_use;
+    tBTA_GATTC_STATE    state;
+    tBTA_GATT_STATUS    status;
+    UINT16              reason;
+} tBTA_GATTC_CLCB;
+
+/* back ground connection tracking information */
+#if GATT_MAX_APPS <= 8
+typedef UINT8 tBTA_GATTC_CIF_MASK ;
+#elif GATT_MAX_APPS <= 16
+typedef UINT16 tBTA_GATTC_CIF_MASK;
+#elif GATT_MAX_APPS <= 32
+typedef UINT32 tBTA_GATTC_CIF_MASK;
+#endif
+
+typedef struct
+{
+    BOOLEAN                 in_use;
+    BD_ADDR                 remote_bda;
+    tBTA_GATTC_CIF_MASK     cif_mask;
+    tBTA_GATTC_CIF_MASK     cif_adv_mask;
+
+}tBTA_GATTC_BG_TCK;
+
+typedef struct
+{
+    BOOLEAN             in_use;
+    BD_ADDR             remote_bda;
+}tBTA_GATTC_CONN;
+
+enum
+{
+   BTA_GATTC_STATE_DISABLED,
+   BTA_GATTC_STATE_ENABLING,
+   BTA_GATTC_STATE_ENABLED,
+   BTA_GATTC_STATE_DISABLING
+};
+
+typedef struct
+{
+    UINT8             state;
+
+    tBTA_GATTC_CONN     conn_track[BTA_GATTC_CONN_MAX];
+    tBTA_GATTC_BG_TCK   bg_track[BTA_GATTC_KNOWN_SR_MAX];
+    tBTA_GATTC_RCB      cl_rcb[BTA_GATTC_CL_MAX];
+
+    tBTA_GATTC_CLCB     clcb[BTA_GATTC_CLCB_MAX];
+    tBTA_GATTC_SERV     known_server[BTA_GATTC_KNOWN_SR_MAX];
+}tBTA_GATTC_CB;
+
+/*****************************************************************************
+**  Global data
+*****************************************************************************/
+
+/* GATTC control block */
+#if BTA_DYNAMIC_MEMORY == FALSE
+extern tBTA_GATTC_CB  bta_gattc_cb;
+#else
+extern tBTA_GATTC_CB *bta_gattc_cb_ptr;
+#define bta_gattc_cb (*bta_gattc_cb_ptr)
+#endif
+
+/*****************************************************************************
+**  Function prototypes
+*****************************************************************************/
+extern BOOLEAN bta_gattc_hdl_event(BT_HDR *p_msg);
+extern BOOLEAN bta_gattc_sm_execute(tBTA_GATTC_CLCB *p_clcb, UINT16 event, tBTA_GATTC_DATA *p_data);
+
+/* function processed outside SM */
+extern void bta_gattc_disable(tBTA_GATTC_CB *p_cb);
+extern void bta_gattc_register(tBTA_GATTC_CB *p_cb, tBTA_GATTC_DATA *p_data);
+extern void bta_gattc_start_if(tBTA_GATTC_CB *p_cb, tBTA_GATTC_DATA *p_data);
+extern void bta_gattc_process_api_open (tBTA_GATTC_CB *p_cb, tBTA_GATTC_DATA * p_msg);
+extern void bta_gattc_process_api_open_cancel (tBTA_GATTC_CB *p_cb, tBTA_GATTC_DATA * p_msg);
+extern void bta_gattc_deregister(tBTA_GATTC_CB *p_cb, tBTA_GATTC_RCB  *p_clreg);
+extern void bta_gattc_process_enc_cmpl(tBTA_GATTC_CB *p_cb, tBTA_GATTC_DATA *p_msg);
+
+/* function within state machine */
+extern void bta_gattc_open(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data);
+extern void bta_gattc_open_fail(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data);
+extern void bta_gattc_open_error(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data);
+
+extern void bta_gattc_cancel_open(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data);
+extern void bta_gattc_cancel_open_ok(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data);
+extern void bta_gattc_cancel_open_error(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data);
+
+extern void bta_gattc_conn(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data);
+
+extern void bta_gattc_close(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data);
+extern void bta_gattc_close_fail(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data);
+extern void bta_gattc_disc_close(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data);
+
+extern void bta_gattc_start_discover(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data);
+extern void bta_gattc_disc_cmpl(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data);
+extern void bta_gattc_read(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data);
+extern void bta_gattc_write(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data);
+extern void bta_gattc_op_cmpl(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data);
+extern void bta_gattc_q_cmd(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data);
+extern void bta_gattc_search(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data);
+extern void bta_gattc_fail(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data);
+extern void bta_gattc_confirm(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data);
+extern void bta_gattc_execute(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data);
+extern void bta_gattc_read_multi(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data);
+extern void bta_gattc_ci_open(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data);
+extern void bta_gattc_ci_close(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data);
+extern void bta_gattc_ignore_op_cmpl(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data);
+extern void bta_gattc_restart_discover(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA * p_msg);
+extern void bta_gattc_init_bk_conn(tBTA_GATTC_API_OPEN *p_data, tBTA_GATTC_RCB *p_clreg);
+extern void bta_gattc_cancel_bk_conn(tBTA_GATTC_API_CANCEL_OPEN *p_data);
+extern void bta_gattc_send_open_cback( tBTA_GATTC_RCB *p_clreg, tBTA_GATT_STATUS status,
+                                       BD_ADDR remote_bda, UINT16 conn_id, tBTA_TRANSPORT transport,  UINT16 mtu);
+extern void bta_gattc_process_api_refresh(tBTA_GATTC_CB *p_cb, tBTA_GATTC_DATA * p_msg);
+extern void bta_gattc_cfg_mtu(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data);
+#if BLE_INCLUDED == TRUE
+extern void bta_gattc_listen(tBTA_GATTC_CB *p_cb, tBTA_GATTC_DATA * p_msg);
+extern void bta_gattc_broadcast(tBTA_GATTC_CB *p_cb, tBTA_GATTC_DATA * p_msg);
+#endif
+/* utility functions */
+extern tBTA_GATTC_CLCB * bta_gattc_find_clcb_by_cif (UINT8 client_if, BD_ADDR remote_bda, tBTA_TRANSPORT transport);
+extern tBTA_GATTC_CLCB * bta_gattc_find_clcb_by_conn_id (UINT16 conn_id);
+extern tBTA_GATTC_CLCB * bta_gattc_clcb_alloc(tBTA_GATTC_IF client_if, BD_ADDR remote_bda, tBTA_TRANSPORT transport);
+extern void bta_gattc_clcb_dealloc(tBTA_GATTC_CLCB *p_clcb);
+extern tBTA_GATTC_CLCB * bta_gattc_find_alloc_clcb(tBTA_GATTC_IF client_if, BD_ADDR remote_bda, tBTA_TRANSPORT transport);
+extern tBTA_GATTC_RCB * bta_gattc_cl_get_regcb(UINT8 client_if);
+extern tBTA_GATTC_SERV * bta_gattc_find_srcb(BD_ADDR bda);
+extern tBTA_GATTC_SERV * bta_gattc_srcb_alloc(BD_ADDR bda);
+extern tBTA_GATTC_SERV * bta_gattc_find_scb_by_cid (UINT16 conn_id);
+extern tBTA_GATTC_CLCB * bta_gattc_find_int_conn_clcb(tBTA_GATTC_DATA *p_msg);
+extern tBTA_GATTC_CLCB * bta_gattc_find_int_disconn_clcb(tBTA_GATTC_DATA *p_msg);
+
+extern BOOLEAN bta_gattc_enqueue(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data);
+
+extern BOOLEAN bta_gattc_uuid_compare (const tBT_UUID *p_src, const tBT_UUID *p_tar, BOOLEAN is_precise);
+extern BOOLEAN bta_gattc_check_notif_registry(tBTA_GATTC_RCB  *p_clreg, tBTA_GATTC_SERV *p_srcb, tBTA_GATTC_NOTIFY  *p_notify);
+extern BOOLEAN bta_gattc_mark_bg_conn (tBTA_GATTC_IF client_if,  BD_ADDR_PTR remote_bda, BOOLEAN add, BOOLEAN is_listen);
+extern BOOLEAN bta_gattc_check_bg_conn (tBTA_GATTC_IF client_if,  BD_ADDR remote_bda, UINT8 role);
+extern UINT8 bta_gattc_num_reg_app(void);
+extern void bta_gattc_clear_notif_registration(tBTA_GATTC_SERV *p_srcb, UINT16 conn_id, UINT16 start_handle, UINT16 end_handle);
+extern tBTA_GATTC_SERV * bta_gattc_find_srvr_cache(BD_ADDR bda);
+
+/* discovery functions */
+extern void bta_gattc_disc_res_cback (UINT16 conn_id, tGATT_DISC_TYPE disc_type, tGATT_DISC_RES *p_data);
+extern void bta_gattc_disc_cmpl_cback (UINT16 conn_id, tGATT_DISC_TYPE disc_type, tGATT_STATUS status);
+extern tBTA_GATT_STATUS bta_gattc_discover_procedure(UINT16 conn_id, tBTA_GATTC_SERV *p_server_cb, UINT8 disc_type);
+extern tBTA_GATT_STATUS bta_gattc_discover_pri_service(UINT16 conn_id, tBTA_GATTC_SERV *p_server_cb, UINT8 disc_type);
+extern void bta_gattc_search_service(tBTA_GATTC_CLCB *p_clcb, tBT_UUID *p_uuid);
+extern const list_t* bta_gattc_get_services(UINT16 conn_id);
+extern const tBTA_GATTC_SERVICE* bta_gattc_get_service_for_handle(UINT16 conn_id, UINT16 handle);
+tBTA_GATTC_CHARACTERISTIC*  bta_gattc_get_characteristic_srcb(tBTA_GATTC_SERV *p_srcb, UINT16 handle);
+extern tBTA_GATTC_CHARACTERISTIC* bta_gattc_get_characteristic(UINT16 conn_id, UINT16 handle);
+extern tBTA_GATTC_DESCRIPTOR* bta_gattc_get_descriptor(UINT16 conn_id, UINT16 handle);
+extern void bta_gattc_get_gatt_db(UINT16 conn_id, UINT16 start_handle, UINT16 end_handle, btgatt_db_element_t **db, int *count);
+extern tBTA_GATT_STATUS bta_gattc_init_cache(tBTA_GATTC_SERV *p_srvc_cb);
+extern void bta_gattc_rebuild_cache(tBTA_GATTC_SERV *p_srcv, UINT16 num_attr, tBTA_GATTC_NV_ATTR *attr);
+extern void bta_gattc_cache_save(tBTA_GATTC_SERV *p_srvc_cb, UINT16 conn_id);
+extern void bta_gattc_reset_discover_st(tBTA_GATTC_SERV *p_srcb, tBTA_GATT_STATUS status);
+
+extern tBTA_GATTC_CONN * bta_gattc_conn_alloc(BD_ADDR remote_bda);
+extern tBTA_GATTC_CONN * bta_gattc_conn_find(BD_ADDR remote_bda);
+extern tBTA_GATTC_CONN * bta_gattc_conn_find_alloc(BD_ADDR remote_bda);
+extern BOOLEAN bta_gattc_conn_dealloc(BD_ADDR remote_bda);
+
+extern bool bta_gattc_cache_load(tBTA_GATTC_CLCB *p_clcb);
+extern void bta_gattc_cache_reset(BD_ADDR server_bda);
+
+#endif /* BTA_GATTC_INT_H */
diff --git a/rtkbt/code/bt/bta/gatt/bta_gattc_main.c b/rtkbt/code/bt/bta/gatt/bta_gattc_main.c
new file mode 100755
index 0000000..86d8536
--- /dev/null
+++ b/rtkbt/code/bt/bta/gatt/bta_gattc_main.c
@@ -0,0 +1,505 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains the GATT client main functions and state machine.
+ *
+ ******************************************************************************/
+
+#include "bt_target.h"
+
+#if defined(BTA_GATT_INCLUDED) && (BTA_GATT_INCLUDED == TRUE)
+
+#include <string.h>
+
+#include "bta_gattc_int.h"
+#include "bt_common.h"
+
+
+/*****************************************************************************
+** Constants and types
+*****************************************************************************/
+
+
+/* state machine action enumeration list */
+enum
+{
+    BTA_GATTC_OPEN,
+    BTA_GATTC_OPEN_FAIL,
+    BTA_GATTC_OPEN_ERROR,
+    BTA_GATTC_CANCEL_OPEN,
+    BTA_GATTC_CANCEL_OPEN_OK,
+    BTA_GATTC_CANCEL_OPEN_ERROR,
+    BTA_GATTC_CONN,
+    BTA_GATTC_START_DISCOVER,
+    BTA_GATTC_DISC_CMPL,
+
+    BTA_GATTC_Q_CMD,
+    BTA_GATTC_CLOSE,
+    BTA_GATTC_CLOSE_FAIL,
+    BTA_GATTC_READ,
+    BTA_GATTC_WRITE,
+
+    BTA_GATTC_OP_CMPL,
+    BTA_GATTC_SEARCH,
+    BTA_GATTC_FAIL,
+    BTA_GATTC_CONFIRM,
+    BTA_GATTC_EXEC,
+    BTA_GATTC_READ_MULTI,
+    BTA_GATTC_IGNORE_OP_CMPL,
+    BTA_GATTC_DISC_CLOSE,
+    BTA_GATTC_RESTART_DISCOVER,
+    BTA_GATTC_CFG_MTU,
+
+    BTA_GATTC_IGNORE
+};
+/* type for action functions */
+typedef void (*tBTA_GATTC_ACTION)(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data);
+
+/* action function list */
+const tBTA_GATTC_ACTION bta_gattc_action[] =
+{
+    bta_gattc_open,
+    bta_gattc_open_fail,
+    bta_gattc_open_error,
+    bta_gattc_cancel_open,
+    bta_gattc_cancel_open_ok,
+    bta_gattc_cancel_open_error,
+    bta_gattc_conn,
+    bta_gattc_start_discover,
+    bta_gattc_disc_cmpl,
+
+    bta_gattc_q_cmd,
+    bta_gattc_close,
+    bta_gattc_close_fail,
+    bta_gattc_read,
+    bta_gattc_write,
+
+    bta_gattc_op_cmpl,
+    bta_gattc_search,
+    bta_gattc_fail,
+    bta_gattc_confirm,
+    bta_gattc_execute,
+    bta_gattc_read_multi,
+    bta_gattc_ignore_op_cmpl,
+    bta_gattc_disc_close,
+    bta_gattc_restart_discover,
+    bta_gattc_cfg_mtu
+};
+
+
+/* state table information */
+#define BTA_GATTC_ACTIONS           1       /* number of actions */
+#define BTA_GATTC_NEXT_STATE          1       /* position of next state */
+#define BTA_GATTC_NUM_COLS            2       /* number of columns in state tables */
+
+/* state table for idle state */
+static const UINT8 bta_gattc_st_idle[][BTA_GATTC_NUM_COLS] =
+{
+/* Event                            Action 1                  Next state */
+/* BTA_GATTC_API_OPEN_EVT           */   {BTA_GATTC_OPEN,              BTA_GATTC_W4_CONN_ST},
+/* BTA_GATTC_INT_OPEN_FAIL_EVT      */   {BTA_GATTC_IGNORE,            BTA_GATTC_IDLE_ST},
+/* BTA_GATTC_API_CANCEL_OPEN_EVT    */   {BTA_GATTC_IGNORE,            BTA_GATTC_IDLE_ST},
+/* BTA_GATTC_INT_CANCEL_OPEN_OK_EVT */   {BTA_GATTC_IGNORE,            BTA_GATTC_IDLE_ST},
+
+/* BTA_GATTC_API_READ_EVT           */   {BTA_GATTC_FAIL,              BTA_GATTC_IDLE_ST},
+/* BTA_GATTC_API_WRITE_EVT          */   {BTA_GATTC_FAIL,              BTA_GATTC_IDLE_ST},
+/* BTA_GATTC_API_EXEC_EVT           */   {BTA_GATTC_FAIL,              BTA_GATTC_IDLE_ST},
+/* BTA_GATTC_API_CFG_MTU_EVT        */   {BTA_GATTC_IGNORE,            BTA_GATTC_IDLE_ST},
+
+/* BTA_GATTC_API_CLOSE_EVT          */   {BTA_GATTC_CLOSE_FAIL,        BTA_GATTC_IDLE_ST},
+
+/* BTA_GATTC_API_SEARCH_EVT         */   {BTA_GATTC_FAIL,              BTA_GATTC_IDLE_ST},
+/* BTA_GATTC_API_CONFIRM_EVT        */   {BTA_GATTC_FAIL,              BTA_GATTC_IDLE_ST},
+/* BTA_GATTC_API_READ_MULTI_EVT     */   {BTA_GATTC_FAIL,              BTA_GATTC_IDLE_ST},
+/* BTA_GATTC_API_REFRESH_EVT        */   {BTA_GATTC_IGNORE,            BTA_GATTC_IDLE_ST},
+
+/* BTA_GATTC_INT_CONN_EVT           */   {BTA_GATTC_CONN,              BTA_GATTC_CONN_ST},
+/* BTA_GATTC_INT_DISCOVER_EVT       */   {BTA_GATTC_IGNORE,            BTA_GATTC_IDLE_ST},
+/* BTA_GATTC_DISCOVER_CMPL_EVT      */   {BTA_GATTC_IGNORE,            BTA_GATTC_IDLE_ST},
+/* BTA_GATTC_OP_CMPL_EVT            */   {BTA_GATTC_IGNORE,            BTA_GATTC_IDLE_ST},
+/* BTA_GATTC_INT_DISCONN_EVT       */    {BTA_GATTC_IGNORE,            BTA_GATTC_IDLE_ST},
+
+};
+
+/* state table for wait for open state */
+static const UINT8 bta_gattc_st_w4_conn[][BTA_GATTC_NUM_COLS] =
+{
+/* Event                            Action 1                             Next state */
+/* BTA_GATTC_API_OPEN_EVT           */   {BTA_GATTC_OPEN,              BTA_GATTC_W4_CONN_ST},
+/* BTA_GATTC_INT_OPEN_FAIL_EVT      */   {BTA_GATTC_OPEN_FAIL,         BTA_GATTC_IDLE_ST},
+/* BTA_GATTC_API_CANCEL_OPEN_EVT    */   {BTA_GATTC_CANCEL_OPEN,       BTA_GATTC_W4_CONN_ST},
+/* BTA_GATTC_INT_CANCEL_OPEN_OK_EVT */   {BTA_GATTC_CANCEL_OPEN_OK,    BTA_GATTC_IDLE_ST},
+
+/* BTA_GATTC_API_READ_EVT           */   {BTA_GATTC_FAIL,               BTA_GATTC_W4_CONN_ST},
+/* BTA_GATTC_API_WRITE_EVT          */   {BTA_GATTC_FAIL,               BTA_GATTC_W4_CONN_ST},
+/* BTA_GATTC_API_EXEC_EVT           */   {BTA_GATTC_FAIL,               BTA_GATTC_W4_CONN_ST},
+/* BTA_GATTC_API_CFG_MTU_EVT        */   {BTA_GATTC_IGNORE,             BTA_GATTC_W4_CONN_ST},
+
+/* BTA_GATTC_API_CLOSE_EVT          */   {BTA_GATTC_CANCEL_OPEN,         BTA_GATTC_W4_CONN_ST},
+
+/* BTA_GATTC_API_SEARCH_EVT         */   {BTA_GATTC_FAIL,               BTA_GATTC_W4_CONN_ST},
+/* BTA_GATTC_API_CONFIRM_EVT        */   {BTA_GATTC_FAIL,               BTA_GATTC_W4_CONN_ST},
+/* BTA_GATTC_API_READ_MULTI_EVT     */   {BTA_GATTC_FAIL,               BTA_GATTC_W4_CONN_ST},
+/* BTA_GATTC_API_REFRESH_EVT        */   {BTA_GATTC_IGNORE,             BTA_GATTC_W4_CONN_ST},
+
+/* BTA_GATTC_INT_CONN_EVT           */   {BTA_GATTC_CONN,               BTA_GATTC_CONN_ST},
+/* BTA_GATTC_INT_DISCOVER_EVT       */   {BTA_GATTC_IGNORE,             BTA_GATTC_W4_CONN_ST},
+/* BTA_GATTC_DISCOVER_CMPL_EVT       */  {BTA_GATTC_IGNORE,             BTA_GATTC_W4_CONN_ST},
+/* BTA_GATTC_OP_CMPL_EVT            */   {BTA_GATTC_IGNORE,             BTA_GATTC_W4_CONN_ST},
+/* BTA_GATTC_INT_DISCONN_EVT      */     {BTA_GATTC_OPEN_FAIL,          BTA_GATTC_IDLE_ST},
+
+};
+
+/* state table for open state */
+static const UINT8 bta_gattc_st_connected[][BTA_GATTC_NUM_COLS] =
+{
+/* Event                            Action 1                            Next state */
+/* BTA_GATTC_API_OPEN_EVT           */   {BTA_GATTC_OPEN,               BTA_GATTC_CONN_ST},
+/* BTA_GATTC_INT_OPEN_FAIL_EVT      */   {BTA_GATTC_IGNORE,             BTA_GATTC_CONN_ST},
+/* BTA_GATTC_API_CANCEL_OPEN_EVT    */   {BTA_GATTC_CANCEL_OPEN_ERROR, BTA_GATTC_CONN_ST},
+/* BTA_GATTC_INT_CANCEL_OPEN_OK_EVT */   {BTA_GATTC_IGNORE,            BTA_GATTC_CONN_ST},
+
+/* BTA_GATTC_API_READ_EVT           */   {BTA_GATTC_READ,               BTA_GATTC_CONN_ST},
+/* BTA_GATTC_API_WRITE_EVT          */   {BTA_GATTC_WRITE,              BTA_GATTC_CONN_ST},
+/* BTA_GATTC_API_EXEC_EVT           */   {BTA_GATTC_EXEC,               BTA_GATTC_CONN_ST},
+/* BTA_GATTC_API_CFG_MTU_EVT        */   {BTA_GATTC_CFG_MTU,            BTA_GATTC_CONN_ST},
+
+/* BTA_GATTC_API_CLOSE_EVT          */   {BTA_GATTC_CLOSE,              BTA_GATTC_IDLE_ST},
+
+/* BTA_GATTC_API_SEARCH_EVT         */   {BTA_GATTC_SEARCH,             BTA_GATTC_CONN_ST},
+/* BTA_GATTC_API_CONFIRM_EVT        */   {BTA_GATTC_CONFIRM,            BTA_GATTC_CONN_ST},
+/* BTA_GATTC_API_READ_MULTI_EVT     */   {BTA_GATTC_READ_MULTI,         BTA_GATTC_CONN_ST},
+/* BTA_GATTC_API_REFRESH_EVT        */   {BTA_GATTC_IGNORE,             BTA_GATTC_CONN_ST},
+
+/* BTA_GATTC_INT_CONN_EVT           */   {BTA_GATTC_IGNORE,             BTA_GATTC_CONN_ST},
+/* BTA_GATTC_INT_DISCOVER_EVT       */   {BTA_GATTC_START_DISCOVER,     BTA_GATTC_DISCOVER_ST},
+/* BTA_GATTC_DISCOVER_CMPL_EVT       */  {BTA_GATTC_IGNORE,             BTA_GATTC_CONN_ST},
+/* BTA_GATTC_OP_CMPL_EVT            */   {BTA_GATTC_OP_CMPL,            BTA_GATTC_CONN_ST},
+
+/* BTA_GATTC_INT_DISCONN_EVT        */   {BTA_GATTC_CLOSE,              BTA_GATTC_IDLE_ST},
+
+};
+
+/* state table for discover state */
+static const UINT8 bta_gattc_st_discover[][BTA_GATTC_NUM_COLS] =
+{
+/* Event                            Action 1                            Next state */
+/* BTA_GATTC_API_OPEN_EVT           */   {BTA_GATTC_OPEN,               BTA_GATTC_DISCOVER_ST},
+/* BTA_GATTC_INT_OPEN_FAIL_EVT      */   {BTA_GATTC_IGNORE,             BTA_GATTC_DISCOVER_ST},
+/* BTA_GATTC_API_CANCEL_OPEN_EVT    */   {BTA_GATTC_CANCEL_OPEN_ERROR,  BTA_GATTC_DISCOVER_ST},
+/* BTA_GATTC_INT_CANCEL_OPEN_OK_EVT */   {BTA_GATTC_FAIL,               BTA_GATTC_DISCOVER_ST},
+
+/* BTA_GATTC_API_READ_EVT           */   {BTA_GATTC_Q_CMD,              BTA_GATTC_DISCOVER_ST},
+/* BTA_GATTC_API_WRITE_EVT          */   {BTA_GATTC_Q_CMD,              BTA_GATTC_DISCOVER_ST},
+/* BTA_GATTC_API_EXEC_EVT           */   {BTA_GATTC_Q_CMD,              BTA_GATTC_DISCOVER_ST},
+/* BTA_GATTC_API_CFG_MTU_EVT        */   {BTA_GATTC_Q_CMD,              BTA_GATTC_DISCOVER_ST},
+
+/* BTA_GATTC_API_CLOSE_EVT          */   {BTA_GATTC_DISC_CLOSE,         BTA_GATTC_DISCOVER_ST},
+
+/* BTA_GATTC_API_SEARCH_EVT         */   {BTA_GATTC_Q_CMD,              BTA_GATTC_DISCOVER_ST},
+/* BTA_GATTC_API_CONFIRM_EVT        */   {BTA_GATTC_CONFIRM,            BTA_GATTC_DISCOVER_ST},
+/* BTA_GATTC_API_READ_MULTI_EVT     */   {BTA_GATTC_Q_CMD,              BTA_GATTC_DISCOVER_ST},
+/* BTA_GATTC_API_REFRESH_EVT        */   {BTA_GATTC_IGNORE,             BTA_GATTC_DISCOVER_ST},
+
+/* BTA_GATTC_INT_CONN_EVT           */   {BTA_GATTC_CONN,               BTA_GATTC_DISCOVER_ST},
+/* BTA_GATTC_INT_DISCOVER_EVT       */   {BTA_GATTC_RESTART_DISCOVER,   BTA_GATTC_DISCOVER_ST},
+/* BTA_GATTC_DISCOVER_CMPL_EVT      */   {BTA_GATTC_DISC_CMPL,          BTA_GATTC_CONN_ST},
+/* BTA_GATTC_OP_CMPL_EVT            */   {BTA_GATTC_IGNORE_OP_CMPL,     BTA_GATTC_DISCOVER_ST},
+/* BTA_GATTC_INT_DISCONN_EVT        */   {BTA_GATTC_CLOSE,              BTA_GATTC_IDLE_ST},
+
+};
+
+/* type for state table */
+typedef const UINT8 (*tBTA_GATTC_ST_TBL)[BTA_GATTC_NUM_COLS];
+
+/* state table */
+const tBTA_GATTC_ST_TBL bta_gattc_st_tbl[] =
+{
+    bta_gattc_st_idle,
+    bta_gattc_st_w4_conn,
+    bta_gattc_st_connected,
+    bta_gattc_st_discover
+};
+
+/*****************************************************************************
+** Global data
+*****************************************************************************/
+
+/* GATTC control block */
+#if BTA_DYNAMIC_MEMORY == FALSE
+tBTA_GATTC_CB  bta_gattc_cb;
+#endif
+
+#if BTA_GATT_DEBUG == TRUE
+static char *gattc_evt_code(tBTA_GATTC_INT_EVT evt_code);
+static char *gattc_state_code(tBTA_GATTC_STATE state_code);
+#endif
+
+/*******************************************************************************
+**
+** Function         bta_gattc_sm_execute
+**
+** Description      State machine event handling function for GATTC
+**
+**
+** Returns          BOOLEAN  : TRUE if queued client request buffer can be immediately released
+**                                        else FALSE
+**
+*******************************************************************************/
+BOOLEAN bta_gattc_sm_execute(tBTA_GATTC_CLCB *p_clcb, UINT16 event, tBTA_GATTC_DATA *p_data)
+{
+    tBTA_GATTC_ST_TBL     state_table;
+    UINT8               action;
+    int                 i;
+    BOOLEAN             rt = TRUE;
+#if BTA_GATT_DEBUG == TRUE
+    tBTA_GATTC_STATE in_state = p_clcb->state;
+    UINT16         in_event = event;
+    APPL_TRACE_DEBUG("bta_gattc_sm_execute: State 0x%02x [%s], Event 0x%x[%s]", in_state,
+                      gattc_state_code(in_state),
+                      in_event,
+                      gattc_evt_code(in_event));
+#endif
+
+
+    /* look up the state table for the current state */
+    state_table = bta_gattc_st_tbl[p_clcb->state];
+
+    event &= 0x00FF;
+
+    /* set next state */
+    p_clcb->state = state_table[event][BTA_GATTC_NEXT_STATE];
+
+    /* execute action functions */
+    for (i = 0; i < BTA_GATTC_ACTIONS; i++)
+    {
+        if ((action = state_table[event][i]) != BTA_GATTC_IGNORE)
+        {
+            (*bta_gattc_action[action])(p_clcb, p_data);
+            if (p_clcb->p_q_cmd == p_data) {
+                /* buffer is queued, don't free in the bta dispatcher.
+                 * we free it ourselves when a completion event is received.
+                 */
+                rt = FALSE;
+            }
+        }
+        else
+        {
+            break;
+        }
+    }
+
+#if BTA_GATT_DEBUG == TRUE
+    if (in_state != p_clcb->state)
+    {
+        APPL_TRACE_DEBUG("GATTC State Change: [%s] -> [%s] after Event [%s]",
+                          gattc_state_code(in_state),
+                          gattc_state_code(p_clcb->state),
+                          gattc_evt_code(in_event));
+    }
+#endif
+    return rt;
+}
+
+/*******************************************************************************
+**
+** Function         bta_gattc_hdl_event
+**
+** Description      GATT client main event handling function.
+**
+**
+** Returns          BOOLEAN
+**
+*******************************************************************************/
+BOOLEAN bta_gattc_hdl_event(BT_HDR *p_msg)
+{
+    tBTA_GATTC_CB *p_cb = &bta_gattc_cb;
+    tBTA_GATTC_CLCB *p_clcb = NULL;
+    tBTA_GATTC_RCB      *p_clreg;
+    BOOLEAN             rt = TRUE;
+#if BTA_GATT_DEBUG == TRUE
+    APPL_TRACE_DEBUG("bta_gattc_hdl_event: Event [%s]", gattc_evt_code(p_msg->event));
+#endif
+    switch (p_msg->event)
+    {
+        case BTA_GATTC_API_DISABLE_EVT:
+            bta_gattc_disable(p_cb);
+            break;
+
+        case BTA_GATTC_API_REG_EVT:
+            bta_gattc_register(p_cb, (tBTA_GATTC_DATA *) p_msg);
+            break;
+
+        case BTA_GATTC_INT_START_IF_EVT:
+            bta_gattc_start_if(p_cb, (tBTA_GATTC_DATA *) p_msg);
+            break;
+
+        case BTA_GATTC_API_DEREG_EVT:
+            p_clreg = bta_gattc_cl_get_regcb(((tBTA_GATTC_DATA *)p_msg)->api_dereg.client_if);
+            bta_gattc_deregister(p_cb, p_clreg);
+            break;
+
+        case BTA_GATTC_API_OPEN_EVT:
+            bta_gattc_process_api_open(p_cb, (tBTA_GATTC_DATA *) p_msg);
+            break;
+
+        case BTA_GATTC_API_CANCEL_OPEN_EVT:
+            bta_gattc_process_api_open_cancel(p_cb, (tBTA_GATTC_DATA *) p_msg);
+            break;
+
+        case BTA_GATTC_API_REFRESH_EVT:
+            bta_gattc_process_api_refresh(p_cb, (tBTA_GATTC_DATA *) p_msg);
+            break;
+
+#if BLE_INCLUDED == TRUE
+        case BTA_GATTC_API_LISTEN_EVT:
+            bta_gattc_listen(p_cb, (tBTA_GATTC_DATA *) p_msg);
+            break;
+        case BTA_GATTC_API_BROADCAST_EVT:
+            bta_gattc_broadcast(p_cb, (tBTA_GATTC_DATA *) p_msg);
+            break;
+#endif
+
+        case BTA_GATTC_ENC_CMPL_EVT:
+            bta_gattc_process_enc_cmpl(p_cb, (tBTA_GATTC_DATA *) p_msg);
+            break;
+
+        default:
+            if (p_msg->event == BTA_GATTC_INT_CONN_EVT)
+                p_clcb = bta_gattc_find_int_conn_clcb((tBTA_GATTC_DATA *) p_msg);
+            else if (p_msg->event == BTA_GATTC_INT_DISCONN_EVT)
+                p_clcb = bta_gattc_find_int_disconn_clcb((tBTA_GATTC_DATA *) p_msg);
+            else
+                p_clcb = bta_gattc_find_clcb_by_conn_id(p_msg->layer_specific);
+
+            if (p_clcb != NULL)
+            {
+                rt = bta_gattc_sm_execute(p_clcb, p_msg->event, (tBTA_GATTC_DATA *) p_msg);
+            }
+            else
+            {
+                APPL_TRACE_DEBUG("Ignore unknown conn ID: %d", p_msg->layer_specific);
+            }
+
+            break;
+    }
+
+
+    return rt;
+}
+
+
+/*****************************************************************************
+**  Debug Functions
+*****************************************************************************/
+#if BTA_GATT_DEBUG == TRUE
+
+/*******************************************************************************
+**
+** Function         gattc_evt_code
+**
+** Description
+**
+** Returns          void
+**
+*******************************************************************************/
+static char *gattc_evt_code(tBTA_GATTC_INT_EVT evt_code)
+{
+    switch (evt_code)
+    {
+        case BTA_GATTC_API_OPEN_EVT:
+            return "BTA_GATTC_API_OPEN_EVT";
+        case BTA_GATTC_INT_OPEN_FAIL_EVT:
+            return "BTA_GATTC_INT_OPEN_FAIL_EVT";
+        case BTA_GATTC_API_CANCEL_OPEN_EVT:
+            return "BTA_GATTC_API_CANCEL_OPEN_EVT";
+        case BTA_GATTC_INT_CANCEL_OPEN_OK_EVT:
+            return "BTA_GATTC_INT_CANCEL_OPEN_OK_EVT";
+        case BTA_GATTC_API_READ_EVT:
+            return "BTA_GATTC_API_READ_EVT";
+        case BTA_GATTC_API_WRITE_EVT:
+            return "BTA_GATTC_API_WRITE_EVT";
+        case BTA_GATTC_API_EXEC_EVT:
+            return "BTA_GATTC_API_EXEC_EVT";
+        case BTA_GATTC_API_CLOSE_EVT:
+            return "BTA_GATTC_API_CLOSE_EVT";
+        case BTA_GATTC_API_SEARCH_EVT:
+            return "BTA_GATTC_API_SEARCH_EVT";
+        case BTA_GATTC_API_CONFIRM_EVT:
+            return "BTA_GATTC_API_CONFIRM_EVT";
+        case BTA_GATTC_API_READ_MULTI_EVT:
+            return "BTA_GATTC_API_READ_MULTI_EVT";
+        case BTA_GATTC_INT_CONN_EVT:
+            return "BTA_GATTC_INT_CONN_EVT";
+        case BTA_GATTC_INT_DISCOVER_EVT:
+            return "BTA_GATTC_INT_DISCOVER_EVT";
+        case BTA_GATTC_DISCOVER_CMPL_EVT:
+            return "BTA_GATTC_DISCOVER_CMPL_EVT";
+        case BTA_GATTC_OP_CMPL_EVT:
+            return "BTA_GATTC_OP_CMPL_EVT";
+        case BTA_GATTC_INT_DISCONN_EVT:
+            return "BTA_GATTC_INT_DISCONN_EVT";
+        case BTA_GATTC_INT_START_IF_EVT:
+            return "BTA_GATTC_INT_START_IF_EVT";
+        case BTA_GATTC_API_REG_EVT:
+            return "BTA_GATTC_API_REG_EVT";
+        case BTA_GATTC_API_DEREG_EVT:
+            return "BTA_GATTC_API_DEREG_EVT";
+        case BTA_GATTC_API_REFRESH_EVT:
+            return "BTA_GATTC_API_REFRESH_EVT";
+        case BTA_GATTC_API_LISTEN_EVT:
+            return "BTA_GATTC_API_LISTEN_EVT";
+        case BTA_GATTC_API_DISABLE_EVT:
+            return "BTA_GATTC_API_DISABLE_EVT";
+        case BTA_GATTC_API_CFG_MTU_EVT:
+            return "BTA_GATTC_API_CFG_MTU_EVT";
+        default:
+            return "unknown GATTC event code";
+    }
+}
+
+/*******************************************************************************
+**
+** Function         gattc_state_code
+**
+** Description
+**
+** Returns          void
+**
+*******************************************************************************/
+static char *gattc_state_code(tBTA_GATTC_STATE state_code)
+{
+    switch (state_code)
+    {
+        case BTA_GATTC_IDLE_ST:
+            return "GATTC_IDLE_ST";
+        case BTA_GATTC_W4_CONN_ST:
+            return "GATTC_W4_CONN_ST";
+        case BTA_GATTC_CONN_ST:
+            return "GATTC_CONN_ST";
+        case BTA_GATTC_DISCOVER_ST:
+            return "GATTC_DISCOVER_ST";
+        default:
+            return "unknown GATTC state code";
+    }
+}
+
+#endif  /* Debug Functions */
+#endif /* BTA_GATT_INCLUDED */
diff --git a/rtkbt/code/bt/bta/gatt/bta_gattc_utils.c b/rtkbt/code/bt/bta/gatt/bta_gattc_utils.c
new file mode 100755
index 0000000..bd0d466
--- /dev/null
+++ b/rtkbt/code/bt/bta/gatt/bta_gattc_utils.c
@@ -0,0 +1,815 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains the GATT client utility function.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_bta_gattc"
+
+#include "bt_target.h"
+
+#if defined(BTA_GATT_INCLUDED) && (BTA_GATT_INCLUDED == TRUE)
+
+#include <string.h>
+
+#include "bta_gattc_int.h"
+#include "bta_sys.h"
+#include "btcore/include/bdaddr.h"
+#include "bt_common.h"
+#include "l2c_api.h"
+#include "utl.h"
+
+/*****************************************************************************
+**  Constants
+*****************************************************************************/
+
+static const UINT8  base_uuid[LEN_UUID_128] = {0xFB, 0x34, 0x9B, 0x5F, 0x80, 0x00, 0x00, 0x80,
+    0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
+
+static const BD_ADDR dummy_bda = {0,0,0,0,0,0};
+
+/*******************************************************************************
+**
+** Function         bta_gatt_convert_uuid16_to_uuid128
+**
+** Description      Convert a 16 bits UUID to be an standard 128 bits one.
+**
+** Returns          TRUE if two uuid match; FALSE otherwise.
+**
+*******************************************************************************/
+void bta_gatt_convert_uuid16_to_uuid128(UINT8 uuid_128[LEN_UUID_128], UINT16 uuid_16)
+{
+    UINT8   *p = &uuid_128[LEN_UUID_128 - 4];
+
+    memcpy (uuid_128, base_uuid, LEN_UUID_128);
+
+    UINT16_TO_STREAM(p, uuid_16);
+}
+/*******************************************************************************
+**
+** Function         bta_gattc_uuid_compare
+**
+** Description      Compare two UUID to see if they are the same.
+**
+** Returns          TRUE if two uuid match; FALSE otherwise.
+**
+*******************************************************************************/
+BOOLEAN bta_gattc_uuid_compare (const tBT_UUID *p_src, const tBT_UUID *p_tar, BOOLEAN is_precise)
+{
+    UINT8  su[LEN_UUID_128], tu[LEN_UUID_128];
+    const UINT8  *ps, *pt;
+
+    /* any of the UUID is unspecified */
+    if (p_src == 0 || p_tar == 0)
+    {
+        if (is_precise)
+            return FALSE;
+        else
+            return TRUE;
+    }
+
+    /* If both are 16-bit, we can do a simple compare */
+    if (p_src->len == 2 && p_tar->len == 2)
+    {
+        return p_src->uu.uuid16 == p_tar->uu.uuid16;
+    }
+
+    /* One or both of the UUIDs is 128-bit */
+    if (p_src->len == LEN_UUID_16)
+    {
+        /* convert a 16 bits UUID to 128 bits value */
+        bta_gatt_convert_uuid16_to_uuid128(su, p_src->uu.uuid16);
+        ps = su;
+    }
+    else
+        ps = p_src->uu.uuid128;
+
+    if (p_tar->len == LEN_UUID_16)
+    {
+        /* convert a 16 bits UUID to 128 bits value */
+        bta_gatt_convert_uuid16_to_uuid128(tu, p_tar->uu.uuid16);
+        pt = tu;
+    }
+    else
+        pt = p_tar->uu.uuid128;
+
+    return(memcmp(ps, pt, LEN_UUID_128) == 0);
+}
+
+/*******************************************************************************
+**
+** Function         bta_gattc_cl_get_regcb
+**
+** Description      get registration control block by client interface.
+**
+** Returns          pointer to the regcb
+**
+*******************************************************************************/
+tBTA_GATTC_RCB * bta_gattc_cl_get_regcb(UINT8 client_if)
+{
+    UINT8   i = 0;
+    tBTA_GATTC_RCB  *p_clrcb = &bta_gattc_cb.cl_rcb[0];
+
+    for (i = 0; i < BTA_GATTC_CL_MAX; i ++, p_clrcb ++)
+    {
+        if (p_clrcb->in_use &&
+            p_clrcb->client_if == client_if)
+            return p_clrcb;
+    }
+    return NULL;
+}
+/*******************************************************************************
+**
+** Function         bta_gattc_num_reg_app
+**
+** Description      find the number of registered application.
+**
+** Returns          pointer to the regcb
+**
+*******************************************************************************/
+UINT8 bta_gattc_num_reg_app(void)
+{
+    UINT8   i = 0, j = 0;
+
+    for (i = 0; i < BTA_GATTC_CL_MAX; i ++)
+    {
+        if (bta_gattc_cb.cl_rcb[i].in_use)
+            j ++;
+    }
+    return j;
+}
+/*******************************************************************************
+**
+** Function         bta_gattc_find_clcb_by_cif
+**
+** Description      get clcb by client interface and remote bd adddress
+**
+** Returns          pointer to the clcb
+**
+*******************************************************************************/
+tBTA_GATTC_CLCB * bta_gattc_find_clcb_by_cif (UINT8 client_if, BD_ADDR remote_bda,
+                                              tBTA_TRANSPORT transport)
+{
+    tBTA_GATTC_CLCB *p_clcb = &bta_gattc_cb.clcb[0];
+    UINT8   i;
+
+    for (i = 0; i < BTA_GATTC_CLCB_MAX; i ++, p_clcb ++)
+    {
+        if (p_clcb->in_use &&
+            p_clcb->p_rcb->client_if == client_if &&
+            p_clcb->transport == transport &&
+            bdcmp(p_clcb->bda, remote_bda) == 0)
+            return p_clcb;
+    }
+    return NULL;
+}
+/*******************************************************************************
+**
+** Function         bta_gattc_find_clcb_by_conn_id
+**
+** Description      get clcb by connection ID
+**
+** Returns          pointer to the clcb
+**
+*******************************************************************************/
+tBTA_GATTC_CLCB * bta_gattc_find_clcb_by_conn_id (UINT16 conn_id)
+{
+    tBTA_GATTC_CLCB *p_clcb = &bta_gattc_cb.clcb[0];
+    UINT8 i;
+
+    for (i = 0; i < BTA_GATTC_CLCB_MAX; i ++, p_clcb ++)
+    {
+        if (p_clcb->in_use &&
+            p_clcb->bta_conn_id == conn_id)
+            return p_clcb;
+    }
+    return NULL;
+}
+
+/*******************************************************************************
+**
+** Function         bta_gattc_clcb_alloc
+**
+** Description      allocate CLCB
+**
+** Returns          pointer to the clcb
+**
+*******************************************************************************/
+tBTA_GATTC_CLCB * bta_gattc_clcb_alloc(tBTA_GATTC_IF client_if, BD_ADDR remote_bda,
+                                       tBTA_TRANSPORT transport)
+{
+    UINT8               i_clcb = 0;
+    tBTA_GATTC_CLCB     *p_clcb = NULL;
+
+    for (i_clcb = 0; i_clcb < BTA_GATTC_CLCB_MAX; i_clcb++)
+    {
+        if (!bta_gattc_cb.clcb[i_clcb].in_use)
+        {
+#if BTA_GATT_DEBUG == TRUE
+            APPL_TRACE_DEBUG("bta_gattc_clcb_alloc: found clcb[%d] available",i_clcb);
+#endif
+            p_clcb                  = &bta_gattc_cb.clcb[i_clcb];
+            p_clcb->in_use          = TRUE;
+            p_clcb->status          = BTA_GATT_OK;
+            p_clcb->transport       = transport;
+            bdcpy(p_clcb->bda, remote_bda);
+
+            p_clcb->p_rcb = bta_gattc_cl_get_regcb(client_if);
+
+            if ((p_clcb->p_srcb = bta_gattc_find_srcb(remote_bda)) == NULL)
+                p_clcb->p_srcb      = bta_gattc_srcb_alloc(remote_bda);
+
+            if (p_clcb->p_rcb != NULL && p_clcb->p_srcb != NULL)
+            {
+                p_clcb->p_srcb->num_clcb ++;
+                p_clcb->p_rcb->num_clcb ++;
+            }
+            else
+            {
+                /* release this clcb if clcb or srcb allocation failed */
+                p_clcb->in_use = FALSE;
+                p_clcb = NULL;
+            }
+            break;
+        }
+    }
+    return p_clcb;
+}
+/*******************************************************************************
+**
+** Function         bta_gattc_find_alloc_clcb
+**
+** Description      find or allocate CLCB if not found.
+**
+** Returns          pointer to the clcb
+**
+*******************************************************************************/
+tBTA_GATTC_CLCB *bta_gattc_find_alloc_clcb(tBTA_GATTC_IF client_if, BD_ADDR remote_bda,
+                                           tBTA_TRANSPORT transport)
+{
+    tBTA_GATTC_CLCB *p_clcb ;
+
+    if ((p_clcb = bta_gattc_find_clcb_by_cif(client_if, remote_bda, transport)) == NULL)
+    {
+        p_clcb = bta_gattc_clcb_alloc(client_if, remote_bda, transport);
+    }
+    return p_clcb;
+}
+
+/*******************************************************************************
+**
+** Function         bta_gattc_clcb_dealloc
+**
+** Description      Deallocte a clcb
+**
+** Returns          pointer to the clcb
+**
+*******************************************************************************/
+void bta_gattc_clcb_dealloc(tBTA_GATTC_CLCB *p_clcb)
+{
+    tBTA_GATTC_SERV     *p_srcb = NULL;
+
+    if (p_clcb)
+    {
+        p_srcb = p_clcb->p_srcb;
+        if (p_srcb->num_clcb)
+            p_srcb->num_clcb --;
+
+        if (p_clcb->p_rcb->num_clcb)
+            p_clcb->p_rcb->num_clcb --;
+
+        /* if the srcb is no longer needed, reset the state */
+        if ( p_srcb->num_clcb == 0)
+        {
+            p_srcb->connected = FALSE;
+            p_srcb->state = BTA_GATTC_SERV_IDLE;
+            p_srcb->mtu = 0;
+        }
+
+        osi_free_and_reset((void **)&p_clcb->p_q_cmd);
+        memset(p_clcb, 0, sizeof(tBTA_GATTC_CLCB));
+    } else {
+        APPL_TRACE_ERROR("bta_gattc_clcb_dealloc p_clcb=NULL");
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_gattc_find_srcb
+**
+** Description      find server cache by remote bd address currently in use
+**
+** Returns          pointer to the server cache.
+**
+*******************************************************************************/
+tBTA_GATTC_SERV * bta_gattc_find_srcb(BD_ADDR bda)
+{
+    tBTA_GATTC_SERV *p_srcb = &bta_gattc_cb.known_server[0];
+    UINT8   i;
+
+    for (i = 0; i < BTA_GATTC_KNOWN_SR_MAX; i ++, p_srcb ++)
+    {
+        if (p_srcb->in_use && bdcmp(p_srcb->server_bda, bda) == 0)
+            return p_srcb;
+    }
+    return NULL;
+}
+
+/*******************************************************************************
+**
+** Function         bta_gattc_find_srvr_cache
+**
+** Description      find server cache by remote bd address
+**
+** Returns          pointer to the server cache.
+**
+*******************************************************************************/
+tBTA_GATTC_SERV * bta_gattc_find_srvr_cache(BD_ADDR bda)
+{
+    tBTA_GATTC_SERV *p_srcb = &bta_gattc_cb.known_server[0];
+    UINT8   i;
+
+    for (i = 0; i < BTA_GATTC_KNOWN_SR_MAX; i ++, p_srcb ++)
+    {
+        if (bdcmp(p_srcb->server_bda, bda) == 0)
+            return p_srcb;
+    }
+    return NULL;
+}
+/*******************************************************************************
+**
+** Function         bta_gattc_find_scb_by_cid
+**
+** Description      find server control block by connection ID
+**
+** Returns          pointer to the server cache.
+**
+*******************************************************************************/
+tBTA_GATTC_SERV * bta_gattc_find_scb_by_cid (UINT16 conn_id)
+{
+    tBTA_GATTC_CLCB *p_clcb = bta_gattc_find_clcb_by_conn_id(conn_id);
+
+    if (p_clcb)
+        return p_clcb->p_srcb;
+    else
+        return NULL;
+}
+/*******************************************************************************
+**
+** Function         bta_gattc_srcb_alloc
+**
+** Description      allocate server cache control block
+**
+** Returns          pointer to the server cache.
+**
+*******************************************************************************/
+tBTA_GATTC_SERV * bta_gattc_srcb_alloc(BD_ADDR bda)
+{
+    tBTA_GATTC_SERV *p_tcb = &bta_gattc_cb.known_server[0],
+                             *p_recycle = NULL;
+    BOOLEAN         found = FALSE;
+    UINT8           i;
+
+    for (i = 0; i < BTA_GATTC_KNOWN_SR_MAX; i ++, p_tcb ++)
+    {
+        if (!p_tcb->in_use)
+        {
+            found = TRUE;
+            break;
+        }
+        else if (!p_tcb->connected)
+        {
+            p_recycle = p_tcb;
+        }
+    }
+
+    /* if not found, try to recycle one known device */
+    if (!found && !p_recycle)
+        p_tcb = NULL;
+    else if (!found && p_recycle)
+        p_tcb = p_recycle;
+
+    if (p_tcb != NULL)
+    {
+        if (p_tcb->p_srvc_cache != NULL)
+            list_free(p_tcb->p_srvc_cache);
+
+        osi_free_and_reset((void **)&p_tcb->p_srvc_list);
+        memset(p_tcb, 0 , sizeof(tBTA_GATTC_SERV));
+
+        p_tcb->in_use = TRUE;
+        bdcpy(p_tcb->server_bda, bda);
+    }
+    return p_tcb;
+}
+/*******************************************************************************
+**
+** Function         bta_gattc_enqueue
+**
+** Description      enqueue a client request in clcb.
+**
+** Returns          success or failure.
+**
+*******************************************************************************/
+BOOLEAN bta_gattc_enqueue(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data)
+{
+
+    if (p_clcb->p_q_cmd == NULL)
+    {
+        p_clcb->p_q_cmd = p_data;
+        return TRUE;
+    }
+
+    APPL_TRACE_ERROR ("%s: already has a pending command!!", __func__);
+    /* skip the callback now. ----- need to send callback ? */
+    return FALSE;
+}
+
+/*******************************************************************************
+**
+** Function         bta_gattc_check_notif_registry
+**
+** Description      check if the service notificaition has been registered.
+**
+** Returns
+**
+*******************************************************************************/
+BOOLEAN bta_gattc_check_notif_registry(tBTA_GATTC_RCB  *p_clreg, tBTA_GATTC_SERV *p_srcb,
+                                       tBTA_GATTC_NOTIFY  *p_notify)
+{
+    UINT8           i;
+
+    for (i = 0 ; i < BTA_GATTC_NOTIF_REG_MAX; i ++)
+    {
+        if (p_clreg->notif_reg[i].in_use &&
+            bdcmp(p_clreg->notif_reg[i].remote_bda, p_srcb->server_bda) == 0 &&
+            p_clreg->notif_reg[i].handle == p_notify->handle)
+        {
+            APPL_TRACE_DEBUG("Notification registered!");
+            return TRUE;
+        }
+    }
+    return FALSE;
+
+}
+/*******************************************************************************
+**
+** Function         bta_gattc_clear_notif_registration
+**
+** Description      Clear up the notification registration information by BD_ADDR.
+**                  Where handle is between start_handle and end_handle, and
+**                  start_handle and end_handle are boundaries of service
+**                  containing characteristic.
+**
+** Returns          None.
+**
+*******************************************************************************/
+void bta_gattc_clear_notif_registration(tBTA_GATTC_SERV *p_srcb, UINT16 conn_id,
+                                        UINT16 start_handle, UINT16 end_handle)
+{
+    BD_ADDR             remote_bda;
+    tBTA_GATTC_IF       gatt_if;
+    tBTA_GATTC_RCB      *p_clrcb ;
+    UINT8       i;
+    tGATT_TRANSPORT     transport;
+    UINT16              handle;
+
+    if (GATT_GetConnectionInfor(conn_id, &gatt_if, remote_bda, &transport)) {
+        if ((p_clrcb = bta_gattc_cl_get_regcb(gatt_if)) != NULL) {
+            for (i = 0 ; i < BTA_GATTC_NOTIF_REG_MAX; i ++) {
+                if (p_clrcb->notif_reg[i].in_use &&
+                    !bdcmp(p_clrcb->notif_reg[i].remote_bda, remote_bda))
+
+                    /* It's enough to get service or characteristic handle, as
+                     * clear boundaries are always around service.
+                     */
+                    handle = p_clrcb->notif_reg[i].handle;
+                    if (handle >= start_handle && handle <= end_handle)
+                        memset(&p_clrcb->notif_reg[i], 0, sizeof(tBTA_GATTC_NOTIF_REG));
+            }
+        }
+    } else {
+        APPL_TRACE_ERROR("can not clear indication/notif registration for unknown app");
+    }
+    return;
+}
+
+/*******************************************************************************
+**
+** Function         bta_gattc_mark_bg_conn
+**
+** Description      mark background connection status when a bg connection is initiated
+**                  or terminated.
+**
+** Returns          TRUE if success; FALSE otherwise.
+**
+*******************************************************************************/
+BOOLEAN bta_gattc_mark_bg_conn (tBTA_GATTC_IF client_if,  BD_ADDR_PTR remote_bda_ptr,
+                                BOOLEAN add, BOOLEAN is_listen)
+{
+    tBTA_GATTC_BG_TCK   *p_bg_tck = &bta_gattc_cb.bg_track[0];
+    UINT8   i = 0;
+    tBTA_GATTC_CIF_MASK  *p_cif_mask;
+
+    for (i = 0; i < BTA_GATTC_KNOWN_SR_MAX; i ++, p_bg_tck ++)
+    {
+        if (p_bg_tck->in_use &&
+            ((remote_bda_ptr != NULL && bdcmp(p_bg_tck->remote_bda, remote_bda_ptr) == 0) ||
+            (remote_bda_ptr == NULL && bdcmp(p_bg_tck->remote_bda, dummy_bda) == 0)))
+        {
+             p_cif_mask = is_listen ? &p_bg_tck->cif_adv_mask : &p_bg_tck->cif_mask;
+
+            if (add)
+                /* mask on the cif bit */
+                *p_cif_mask |= (1 <<(client_if - 1));
+            else
+            {
+                if (client_if != 0)
+                    *p_cif_mask &= (~(1 <<(client_if - 1)));
+                else
+                    *p_cif_mask = 0;
+            }
+            /* no BG connection for this device, make it available */
+            if (p_bg_tck->cif_mask == 0 && p_bg_tck->cif_adv_mask == 0)
+            {
+                memset(p_bg_tck, 0, sizeof(tBTA_GATTC_BG_TCK));
+            }
+            return TRUE;
+        }
+    }
+    if (!add)
+    {
+        if (remote_bda_ptr)
+        {
+            bdstr_t bdstr = {0};
+            APPL_TRACE_ERROR("%s unable to find the bg connection mask for: %s", __func__,
+                bdaddr_to_string((bt_bdaddr_t *)remote_bda_ptr, bdstr, sizeof(bdstr)));
+        }
+        return FALSE;
+    }
+    else /* adding a new device mask */
+    {
+        for (i = 0, p_bg_tck = &bta_gattc_cb.bg_track[0];
+             i < BTA_GATTC_KNOWN_SR_MAX; i ++, p_bg_tck ++)
+        {
+            if (!p_bg_tck->in_use)
+            {
+                p_bg_tck->in_use = TRUE;
+                if (remote_bda_ptr)
+                    bdcpy(p_bg_tck->remote_bda, remote_bda_ptr);
+                else
+                    bdcpy(p_bg_tck->remote_bda, dummy_bda);
+
+                p_cif_mask = is_listen ? &p_bg_tck->cif_adv_mask : &p_bg_tck->cif_mask;
+
+                *p_cif_mask = (1 <<(client_if - 1));
+                return TRUE;
+            }
+        }
+        APPL_TRACE_ERROR("no available space to mark the bg connection status");
+        return FALSE;
+    }
+}
+/*******************************************************************************
+**
+** Function         bta_gattc_check_bg_conn
+**
+** Description      check if this is a background connection background connection.
+**
+** Returns          TRUE if success; FALSE otherwise.
+**
+*******************************************************************************/
+BOOLEAN bta_gattc_check_bg_conn (tBTA_GATTC_IF client_if,  BD_ADDR remote_bda, UINT8 role)
+{
+    tBTA_GATTC_BG_TCK   *p_bg_tck = &bta_gattc_cb.bg_track[0];
+    UINT8       i = 0;
+    BOOLEAN     is_bg_conn = FALSE;
+
+    for (i = 0; i < BTA_GATTC_KNOWN_SR_MAX && !is_bg_conn; i ++, p_bg_tck ++)
+    {
+        if (p_bg_tck->in_use &&
+            (bdcmp(p_bg_tck->remote_bda, remote_bda) == 0 ||
+             bdcmp(p_bg_tck->remote_bda, dummy_bda) == 0))
+        {
+            if (((p_bg_tck->cif_mask &(1 <<(client_if - 1))) != 0) &&
+                role == HCI_ROLE_MASTER)
+                is_bg_conn = TRUE;
+
+            if (((p_bg_tck->cif_adv_mask &(1 <<(client_if - 1))) != 0) &&
+                role == HCI_ROLE_SLAVE)
+                is_bg_conn = TRUE;
+        }
+    }
+    return is_bg_conn;
+}
+/*******************************************************************************
+**
+** Function         bta_gattc_send_open_cback
+**
+** Description      send open callback
+**
+** Returns
+**
+*******************************************************************************/
+void bta_gattc_send_open_cback( tBTA_GATTC_RCB *p_clreg, tBTA_GATT_STATUS status,
+                                BD_ADDR remote_bda, UINT16 conn_id,
+                                tBTA_TRANSPORT transport, UINT16 mtu)
+{
+    tBTA_GATTC      cb_data;
+
+    if (p_clreg->p_cback)
+    {
+        memset(&cb_data, 0, sizeof(tBTA_GATTC));
+
+        cb_data.open.status = status;
+        cb_data.open.client_if = p_clreg->client_if;
+        cb_data.open.conn_id = conn_id;
+        cb_data.open.mtu = mtu;
+        cb_data.open.transport = transport;
+        bdcpy(cb_data.open.remote_bda, remote_bda);
+
+        (*p_clreg->p_cback)(BTA_GATTC_OPEN_EVT, &cb_data);
+    }
+}
+/*******************************************************************************
+**
+** Function         bta_gattc_conn_alloc
+**
+** Description      allocate connection tracking spot
+**
+** Returns          pointer to the clcb
+**
+*******************************************************************************/
+tBTA_GATTC_CONN * bta_gattc_conn_alloc(BD_ADDR remote_bda)
+{
+    UINT8               i_conn = 0;
+    tBTA_GATTC_CONN     *p_conn = &bta_gattc_cb.conn_track[0];
+
+    for (i_conn = 0; i_conn < BTA_GATTC_CONN_MAX; i_conn++, p_conn ++)
+    {
+        if (!p_conn->in_use)
+        {
+#if BTA_GATT_DEBUG == TRUE
+            APPL_TRACE_DEBUG("bta_gattc_conn_alloc: found conn_track[%d] available",i_conn);
+#endif
+            p_conn->in_use          = TRUE;
+            bdcpy(p_conn->remote_bda, remote_bda);
+            return p_conn;
+        }
+    }
+    return NULL;
+}
+
+/*******************************************************************************
+**
+** Function         bta_gattc_conn_find
+**
+** Description      allocate connection tracking spot
+**
+** Returns          pointer to the clcb
+**
+*******************************************************************************/
+tBTA_GATTC_CONN * bta_gattc_conn_find(BD_ADDR remote_bda)
+{
+    UINT8               i_conn = 0;
+    tBTA_GATTC_CONN     *p_conn = &bta_gattc_cb.conn_track[0];
+
+    for (i_conn = 0; i_conn < BTA_GATTC_CONN_MAX; i_conn++, p_conn ++)
+    {
+        if (p_conn->in_use && bdcmp(remote_bda, p_conn->remote_bda) == 0)
+        {
+#if BTA_GATT_DEBUG == TRUE
+            APPL_TRACE_DEBUG("bta_gattc_conn_find: found conn_track[%d] matched",i_conn);
+#endif
+            return p_conn;
+        }
+    }
+    return NULL;
+}
+
+/*******************************************************************************
+**
+** Function         bta_gattc_conn_find_alloc
+**
+** Description      find or allocate connection tracking spot
+**
+** Returns          pointer to the clcb
+**
+*******************************************************************************/
+tBTA_GATTC_CONN * bta_gattc_conn_find_alloc(BD_ADDR remote_bda)
+{
+    tBTA_GATTC_CONN     *p_conn = bta_gattc_conn_find (remote_bda);
+
+    if (p_conn == NULL)
+    {
+        p_conn = bta_gattc_conn_alloc(remote_bda);
+    }
+    return p_conn;
+}
+
+/*******************************************************************************
+**
+** Function         bta_gattc_conn_dealloc
+**
+** Description      de-allocate connection tracking spot
+**
+** Returns          pointer to the clcb
+**
+*******************************************************************************/
+BOOLEAN bta_gattc_conn_dealloc(BD_ADDR remote_bda)
+{
+    tBTA_GATTC_CONN     *p_conn = bta_gattc_conn_find (remote_bda);
+
+    if (p_conn != NULL)
+    {
+        p_conn->in_use = FALSE;
+        memset(p_conn->remote_bda, 0, BD_ADDR_LEN);
+        return TRUE;
+    }
+    return FALSE;
+}
+
+/*******************************************************************************
+**
+** Function         bta_gattc_find_int_conn_clcb
+**
+** Description      try to locate a clcb when an internal connecion event arrives.
+**
+** Returns          pointer to the clcb
+**
+*******************************************************************************/
+tBTA_GATTC_CLCB * bta_gattc_find_int_conn_clcb(tBTA_GATTC_DATA *p_msg)
+{
+    tBTA_GATTC_CLCB *p_clcb = NULL;
+
+    if (p_msg->int_conn.role == HCI_ROLE_SLAVE)
+        bta_gattc_conn_find_alloc(p_msg->int_conn.remote_bda);
+
+    /* try to locate a logic channel */
+    if ((p_clcb = bta_gattc_find_clcb_by_cif(p_msg->int_conn.client_if,
+                                             p_msg->int_conn.remote_bda,
+                                             p_msg->int_conn.transport)) == NULL)
+    {
+        /* for a background connection or listening connection */
+        if (/*p_msg->int_conn.role == HCI_ROLE_SLAVE ||  */
+            bta_gattc_check_bg_conn(p_msg->int_conn.client_if,
+                                    p_msg->int_conn.remote_bda,
+                                    p_msg->int_conn.role))
+        {
+            /* allocate a new channel */
+            p_clcb = bta_gattc_clcb_alloc(p_msg->int_conn.client_if,
+                                          p_msg->int_conn.remote_bda,
+                                          p_msg->int_conn.transport);
+        }
+    }
+    return p_clcb;
+}
+
+/*******************************************************************************
+**
+** Function         bta_gattc_find_int_disconn_clcb
+**
+** Description      try to locate a clcb when an internal disconnect callback arrives.
+**
+** Returns          pointer to the clcb
+**
+*******************************************************************************/
+tBTA_GATTC_CLCB * bta_gattc_find_int_disconn_clcb(tBTA_GATTC_DATA *p_msg)
+{
+    tBTA_GATTC_CLCB         *p_clcb = NULL;
+
+    bta_gattc_conn_dealloc(p_msg->int_conn.remote_bda);
+    if ((p_clcb = bta_gattc_find_clcb_by_conn_id(p_msg->int_conn.hdr.layer_specific)) == NULL)
+    {
+        /* connection attempt failed, send connection callback event */
+        p_clcb = bta_gattc_find_clcb_by_cif(p_msg->int_conn.client_if,
+                                            p_msg->int_conn.remote_bda,
+                                            p_msg->int_conn.transport);
+    }
+    if (p_clcb == NULL)
+    {
+        APPL_TRACE_DEBUG(" disconnection ID: [%d] not used by BTA",
+            p_msg->int_conn.hdr.layer_specific);
+    }
+    return p_clcb;
+}
+
+#endif /* BTA_GATT_INCLUDED */
diff --git a/rtkbt/code/bt/bta/gatt/bta_gatts_act.c b/rtkbt/code/bt/bta/gatt/bta_gatts_act.c
new file mode 100755
index 0000000..4c35b0c
--- /dev/null
+++ b/rtkbt/code/bt/bta/gatt/bta_gatts_act.c
@@ -0,0 +1,966 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains the GATT Server action functions for the state
+ *  machine.
+ *
+ ******************************************************************************/
+
+
+#include "bt_target.h"
+
+#if defined(BTA_GATT_INCLUDED) && (BTA_GATT_INCLUDED == TRUE)
+
+#include "utl.h"
+#include "bt_common.h"
+#include "bta_sys.h"
+#include "bta_gatts_int.h"
+#include "bta_gatts_co.h"
+#include "btm_ble_api.h"
+#include "btif/include/btif_debug_conn.h"
+#include <string.h>
+
+static void bta_gatts_nv_save_cback(BOOLEAN is_saved, tGATTS_HNDL_RANGE *p_hndl_range);
+static BOOLEAN bta_gatts_nv_srv_chg_cback(tGATTS_SRV_CHG_CMD cmd, tGATTS_SRV_CHG_REQ *p_req,
+                                                tGATTS_SRV_CHG_RSP *p_rsp);
+
+static void bta_gatts_conn_cback (tGATT_IF gatt_if, BD_ADDR bda, UINT16 conn_id,
+                                      BOOLEAN connected, tGATT_DISCONN_REASON reason,
+                                      tGATT_TRANSPORT transport);
+static void bta_gatts_send_request_cback (UINT16 conn_id,
+                                          UINT32 trans_id,
+                                          tGATTS_REQ_TYPE req_type, tGATTS_DATA *p_data);
+static void bta_gatts_cong_cback (UINT16 conn_id, BOOLEAN congested);
+
+static tGATT_CBACK bta_gatts_cback =
+{
+    bta_gatts_conn_cback,
+    NULL,
+    NULL,
+    NULL,
+    bta_gatts_send_request_cback,
+    NULL,
+    bta_gatts_cong_cback
+};
+
+tGATT_APPL_INFO bta_gatts_nv_cback =
+{
+    bta_gatts_nv_save_cback,
+    bta_gatts_nv_srv_chg_cback
+};
+
+/*******************************************************************************
+**
+** Function         bta_gatts_nv_save_cback
+**
+** Description      NV save callback function.
+**
+** Parameter        is_add: true is to add a handle range; otherwise is to delete.
+** Returns          none.
+**
+*******************************************************************************/
+static void bta_gatts_nv_save_cback(BOOLEAN is_add, tGATTS_HNDL_RANGE *p_hndl_range)
+{
+    bta_gatts_co_update_handle_range(is_add, (tBTA_GATTS_HNDL_RANGE *)p_hndl_range);
+}
+
+
+/*******************************************************************************
+**
+** Function         bta_gatts_nv_srv_chg_cback
+**
+** Description      NV save callback function.
+**
+** Parameter        is_add: true is to add a handle range; otherwise is to delete.
+** Returns          none.
+**
+*******************************************************************************/
+static BOOLEAN bta_gatts_nv_srv_chg_cback(tGATTS_SRV_CHG_CMD cmd,
+                                              tGATTS_SRV_CHG_REQ *p_req, tGATTS_SRV_CHG_RSP *p_rsp)
+{
+    return bta_gatts_co_srv_chg((tBTA_GATTS_SRV_CHG_CMD) cmd,
+                                (tBTA_GATTS_SRV_CHG_REQ *) p_req,
+                                (tBTA_GATTS_SRV_CHG_RSP *) p_rsp);
+}
+
+
+/*******************************************************************************
+**
+** Function         bta_gatts_enable
+**
+** Description      enable BTA GATTS module.
+**
+** Returns          none.
+**
+*******************************************************************************/
+void bta_gatts_enable(tBTA_GATTS_CB *p_cb)
+{
+    UINT8 index=0;
+    tBTA_GATTS_HNDL_RANGE handle_range;
+
+    if (p_cb->enabled)
+    {
+        APPL_TRACE_DEBUG("GATTS already enabled.");
+    }
+    else
+    {
+        memset(p_cb, 0, sizeof(tBTA_GATTS_CB));
+
+        p_cb->enabled = TRUE;
+
+        while ( bta_gatts_co_load_handle_range(index, &handle_range))
+        {
+            GATTS_AddHandleRange((tGATTS_HNDL_RANGE *)&handle_range);
+            memset(&handle_range, 0, sizeof(tGATTS_HNDL_RANGE));
+            index++;
+        }
+
+        APPL_TRACE_DEBUG("bta_gatts_enable: num of handle range added=%d", index);
+
+        if (!GATTS_NVRegister(&bta_gatts_nv_cback))
+        {
+            APPL_TRACE_ERROR("BTA GATTS NV register failed.");
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_gatts_api_disable
+**
+** Description      disable BTA GATTS module.
+**
+** Returns          none.
+**
+*******************************************************************************/
+void bta_gatts_api_disable(tBTA_GATTS_CB *p_cb)
+{
+    UINT8 i;
+
+    if (p_cb->enabled)
+    {
+        for (i = 0; i < BTA_GATTS_MAX_APP_NUM; i ++)
+        {
+            if (p_cb->rcb[i].in_use)
+            {
+                GATT_Deregister(p_cb->rcb[i].gatt_if);
+            }
+        }
+        memset(p_cb, 0, sizeof(tBTA_GATTS_CB));
+    }
+    else
+    {
+        APPL_TRACE_ERROR("GATTS not enabled");
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_gatts_register
+**
+** Description      register an application.
+**
+** Returns          none.
+**
+*******************************************************************************/
+void bta_gatts_register(tBTA_GATTS_CB *p_cb, tBTA_GATTS_DATA *p_msg)
+{
+    tBTA_GATTS               cb_data;
+    tBTA_GATT_STATUS         status = BTA_GATT_OK;
+    UINT8                    i, first_unuse = 0xff;
+
+    if (p_cb->enabled == FALSE)
+    {
+        bta_gatts_enable(p_cb);
+    }
+
+    for (i = 0; i < BTA_GATTS_MAX_APP_NUM; i ++)
+    {
+        if (p_cb->rcb[i].in_use)
+        {
+            if (bta_gatts_uuid_compare(p_cb->rcb[i].app_uuid, p_msg->api_reg.app_uuid))
+            {
+                APPL_TRACE_ERROR("application already registered.");
+                status = BTA_GATT_DUP_REG;
+                break;
+            }
+        }
+    }
+
+    if (status == BTA_GATT_OK)
+    {
+        for (i = 0; i < BTA_GATTS_MAX_APP_NUM; i ++)
+        {
+            if (first_unuse == 0xff && !p_cb->rcb[i].in_use)
+            {
+                first_unuse = i;
+                break;
+            }
+        }
+
+        cb_data.reg_oper.server_if = BTA_GATTS_INVALID_IF;
+        memcpy(&cb_data.reg_oper.uuid, &p_msg->api_reg.app_uuid, sizeof(tBT_UUID));
+        if (first_unuse != 0xff)
+        {
+            APPL_TRACE_ERROR("register application first_unuse rcb_idx = %d", first_unuse);
+
+            p_cb->rcb[first_unuse].in_use = TRUE;
+            p_cb->rcb[first_unuse].p_cback = p_msg->api_reg.p_cback;
+            memcpy(&p_cb->rcb[first_unuse].app_uuid, &p_msg->api_reg.app_uuid, sizeof(tBT_UUID));
+            cb_data.reg_oper.server_if      =
+            p_cb->rcb[first_unuse].gatt_if  =
+            GATT_Register(&p_msg->api_reg.app_uuid, &bta_gatts_cback);
+            if ( !p_cb->rcb[first_unuse].gatt_if) {
+                status = BTA_GATT_NO_RESOURCES;
+            } else {
+              tBTA_GATTS_INT_START_IF *p_buf =
+                  (tBTA_GATTS_INT_START_IF *)osi_malloc(sizeof(tBTA_GATTS_INT_START_IF));
+                p_buf->hdr.event = BTA_GATTS_INT_START_IF_EVT;
+                p_buf->server_if = p_cb->rcb[first_unuse].gatt_if;
+
+                bta_sys_sendmsg(p_buf);
+            }
+        } else {
+            status = BTA_GATT_NO_RESOURCES;
+        }
+
+    }
+    cb_data.reg_oper.status = status;
+    if (p_msg->api_reg.p_cback)
+        (*p_msg->api_reg.p_cback)(BTA_GATTS_REG_EVT, &cb_data);
+}
+
+
+/*******************************************************************************
+**
+** Function         bta_gatts_start_if
+**
+** Description      start an application interface.
+**
+** Returns          none.
+**
+*******************************************************************************/
+void bta_gatts_start_if(tBTA_GATTS_CB *p_cb, tBTA_GATTS_DATA *p_msg)
+{
+    UNUSED(p_cb);
+
+    if (bta_gatts_find_app_rcb_by_app_if(p_msg->int_start_if.server_if))
+    {
+        GATT_StartIf(p_msg->int_start_if.server_if);
+    }
+    else
+    {
+        APPL_TRACE_ERROR("Unable to start app.: Unknown interface =%d",
+            p_msg->int_start_if.server_if );
+    }
+}
+/*******************************************************************************
+**
+** Function         bta_gatts_deregister
+**
+** Description      deregister an application.
+**
+** Returns          none.
+**
+*******************************************************************************/
+void bta_gatts_deregister(tBTA_GATTS_CB *p_cb, tBTA_GATTS_DATA *p_msg)
+{
+    tBTA_GATT_STATUS    status = BTA_GATT_ERROR;
+    tBTA_GATTS_CBACK    *p_cback = NULL;
+    UINT8               i;
+    tBTA_GATTS          cb_data;
+
+    cb_data.reg_oper.server_if = p_msg->api_dereg.server_if;
+    cb_data.reg_oper.status = status;
+
+    for (i = 0; i < BTA_GATTS_MAX_APP_NUM; i ++)
+    {
+        if (p_cb->rcb[i].in_use && p_cb->rcb[i].gatt_if == p_msg->api_dereg.server_if)
+        {
+            p_cback = p_cb->rcb[i].p_cback;
+            status = BTA_GATT_OK;
+
+            /* deregister the app */
+            GATT_Deregister(p_cb->rcb[i].gatt_if);
+
+            /* reset cb */
+            memset(&p_cb->rcb[i], 0, sizeof(tBTA_GATTS_RCB));
+            cb_data.reg_oper.status = status;
+            break;
+        }
+    }
+
+    if (p_cback)
+    {
+        (*p_cback)(BTA_GATTS_DEREG_EVT, &cb_data);
+    }
+    else
+    {
+        APPL_TRACE_ERROR("application not registered.");
+    }
+}
+/*******************************************************************************
+**
+** Function         bta_gatts_create_srvc
+**
+** Description      action function to create a service.
+**
+** Returns          none.
+**
+*******************************************************************************/
+void bta_gatts_create_srvc(tBTA_GATTS_CB *p_cb, tBTA_GATTS_DATA * p_msg)
+{
+    UINT8               rcb_idx;
+    tBTA_GATTS          cb_data;
+    UINT8               srvc_idx;
+    UINT16              service_id = 0;
+
+    cb_data.create.status = BTA_GATT_ERROR;
+
+    rcb_idx = bta_gatts_find_app_rcb_idx_by_app_if(p_cb, p_msg->api_create_svc.server_if);
+
+    APPL_TRACE_ERROR("create service rcb_idx = %d", rcb_idx);
+
+    if (rcb_idx != BTA_GATTS_INVALID_APP)
+    {
+        if ((srvc_idx = bta_gatts_alloc_srvc_cb(p_cb, rcb_idx)) != BTA_GATTS_INVALID_APP)
+        {
+            /* create the service now */
+            service_id = GATTS_CreateService (p_cb->rcb[rcb_idx].gatt_if,
+                                              &p_msg->api_create_svc.service_uuid,
+                                              p_msg->api_create_svc.inst,
+                                              p_msg->api_create_svc.num_handle,
+                                              p_msg->api_create_svc.is_pri);
+
+            if (service_id != 0)
+            {
+                memcpy(&p_cb->srvc_cb[srvc_idx].service_uuid,
+                    &p_msg->api_create_svc.service_uuid, sizeof(tBT_UUID));
+                p_cb->srvc_cb[srvc_idx].service_id   = service_id;
+                p_cb->srvc_cb[srvc_idx].inst_num     = p_msg->api_create_svc.inst;
+                p_cb->srvc_cb[srvc_idx].idx          = srvc_idx;
+
+                cb_data.create.status      = BTA_GATT_OK;
+                cb_data.create.service_id  = service_id;
+                cb_data.create.is_primary  = p_msg->api_create_svc.is_pri;
+                cb_data.create.server_if   = p_cb->rcb[rcb_idx].gatt_if;
+            }
+            else
+            {
+                cb_data.status  = BTA_GATT_ERROR;
+                memset(&p_cb->srvc_cb[srvc_idx], 0, sizeof(tBTA_GATTS_SRVC_CB));
+                APPL_TRACE_ERROR("service creation failed.");
+            }
+            memcpy(&cb_data.create.uuid, &p_msg->api_create_svc.service_uuid, sizeof(tBT_UUID));
+            cb_data.create.svc_instance= p_msg->api_create_svc.inst;
+        }
+        if (p_cb->rcb[rcb_idx].p_cback)
+            (* p_cb->rcb[rcb_idx].p_cback)(BTA_GATTS_CREATE_EVT, &cb_data);
+    }
+    else /* application not registered */
+    {
+        APPL_TRACE_ERROR("Application not registered");
+    }
+}
+/*******************************************************************************
+**
+** Function         bta_gatts_add_include_srvc
+**
+** Description      action function to add an included service.
+**
+** Returns          none.
+**
+*******************************************************************************/
+void bta_gatts_add_include_srvc(tBTA_GATTS_SRVC_CB *p_srvc_cb,tBTA_GATTS_DATA * p_msg)
+{
+    tBTA_GATTS_RCB  *p_rcb = &bta_gatts_cb.rcb[p_srvc_cb->rcb_idx];
+    UINT16          attr_id = 0;
+    tBTA_GATTS      cb_data;
+
+    attr_id = GATTS_AddIncludeService(p_msg->api_add_incl_srvc.hdr.layer_specific,
+                                      p_msg->api_add_incl_srvc.included_service_id);
+
+    cb_data.add_result.server_if = p_rcb->gatt_if;
+    cb_data.add_result.service_id = p_msg->api_add_incl_srvc.hdr.layer_specific;
+    cb_data.add_result.attr_id = attr_id;
+
+    if (attr_id)
+    {
+        cb_data.add_result.status = BTA_GATT_OK;
+    }
+    else
+    {
+        cb_data.add_result.status = BTA_GATT_ERROR;
+    }
+
+    if (p_rcb->p_cback)
+        (*p_rcb->p_cback)(BTA_GATTS_ADD_INCL_SRVC_EVT, &cb_data);
+}
+/*******************************************************************************
+**
+** Function         bta_gatts_add_char
+**
+** Description      action function to add characteristic.
+**
+** Returns          none.
+**
+*******************************************************************************/
+void bta_gatts_add_char(tBTA_GATTS_SRVC_CB *p_srvc_cb, tBTA_GATTS_DATA * p_msg)
+{
+    tBTA_GATTS_RCB  *p_rcb = &bta_gatts_cb.rcb[p_srvc_cb->rcb_idx];
+    UINT16          attr_id = 0;
+    tBTA_GATTS      cb_data;
+
+    attr_id = GATTS_AddCharacteristic(p_msg->api_add_char.hdr.layer_specific,
+                                      &p_msg->api_add_char.char_uuid,
+                                      p_msg->api_add_char.perm,
+                                      p_msg->api_add_char.property);
+    cb_data.add_result.server_if = p_rcb->gatt_if;
+    cb_data.add_result.service_id = p_msg->api_add_incl_srvc.hdr.layer_specific;
+    cb_data.add_result.attr_id = attr_id;
+    memcpy(&cb_data.add_result.char_uuid, &p_msg->api_add_char.char_uuid, sizeof(tBT_UUID));
+
+    if (attr_id)
+    {
+        cb_data.add_result.status = BTA_GATT_OK;
+    }
+    else
+    {
+        cb_data.add_result.status = BTA_GATT_ERROR;
+    }
+
+    if (p_rcb->p_cback)
+        (*p_rcb->p_cback)(BTA_GATTS_ADD_CHAR_EVT, &cb_data);
+}
+/*******************************************************************************
+**
+** Function         bta_gatts_add_char_descr
+**
+** Description      action function to add characteristic descriptor.
+**
+** Returns          none.
+**
+*******************************************************************************/
+void bta_gatts_add_char_descr(tBTA_GATTS_SRVC_CB *p_srvc_cb, tBTA_GATTS_DATA * p_msg)
+{
+    tBTA_GATTS_RCB  *p_rcb = &bta_gatts_cb.rcb[p_srvc_cb->rcb_idx];
+    UINT16          attr_id = 0;
+    tBTA_GATTS      cb_data;
+
+    attr_id = GATTS_AddCharDescriptor(p_msg->api_add_char_descr.hdr.layer_specific,
+                                       p_msg->api_add_char_descr.perm,
+                                       &p_msg->api_add_char_descr.descr_uuid);
+
+    cb_data.add_result.server_if = p_rcb->gatt_if;
+    cb_data.add_result.service_id = p_msg->api_add_incl_srvc.hdr.layer_specific;
+    cb_data.add_result.attr_id = attr_id;
+    memcpy(&cb_data.add_result.char_uuid, &p_msg->api_add_char_descr.descr_uuid, sizeof(tBT_UUID));
+
+    if (attr_id)
+    {
+        cb_data.add_result.status = BTA_GATT_OK;
+    }
+    else
+    {
+        cb_data.add_result.status = BTA_GATT_ERROR;
+    }
+
+    if (p_rcb->p_cback)
+        (*p_rcb->p_cback)(BTA_GATTS_ADD_CHAR_DESCR_EVT, &cb_data);
+
+}
+/*******************************************************************************
+**
+** Function         bta_gatts_delete_service
+**
+** Description      action function to delete a service.
+**
+** Returns          none.
+**
+*******************************************************************************/
+void bta_gatts_delete_service(tBTA_GATTS_SRVC_CB *p_srvc_cb, tBTA_GATTS_DATA * p_msg)
+{
+    tBTA_GATTS_RCB *p_rcb = &bta_gatts_cb.rcb[p_srvc_cb->rcb_idx];
+    tBTA_GATTS      cb_data;
+
+    cb_data.srvc_oper.server_if = p_rcb->gatt_if;
+    cb_data.srvc_oper.service_id = p_msg->api_add_incl_srvc.hdr.layer_specific;
+
+    if (GATTS_DeleteService(p_rcb->gatt_if,
+                            &p_srvc_cb->service_uuid,
+                            p_srvc_cb->inst_num))
+    {
+        cb_data.srvc_oper.status = BTA_GATT_OK;
+        memset(p_srvc_cb, 0, sizeof(tBTA_GATTS_SRVC_CB));
+    }
+    else
+    {
+        cb_data.srvc_oper.status = BTA_GATT_ERROR;
+    }
+
+    if (p_rcb->p_cback)
+        (*p_rcb->p_cback)(BTA_GATTS_DELELTE_EVT, &cb_data);
+
+}
+/*******************************************************************************
+**
+** Function         bta_gatts_start_service
+**
+** Description      action function to start a service.
+**
+** Returns          none.
+**
+*******************************************************************************/
+void bta_gatts_start_service(tBTA_GATTS_SRVC_CB *p_srvc_cb, tBTA_GATTS_DATA * p_msg)
+{
+    tBTA_GATTS_RCB *p_rcb = &bta_gatts_cb.rcb[p_srvc_cb->rcb_idx];
+    tBTA_GATTS      cb_data;
+
+    cb_data.srvc_oper.server_if = p_rcb->gatt_if;
+    cb_data.srvc_oper.service_id = p_msg->api_add_incl_srvc.hdr.layer_specific;
+
+    if (GATTS_StartService(p_rcb->gatt_if,
+                           p_srvc_cb->service_id,
+                           p_msg->api_start.transport) ==  GATT_SUCCESS)
+    {
+        APPL_TRACE_DEBUG("bta_gatts_start_service service_id= %d", p_srvc_cb->service_id);
+        cb_data.srvc_oper.status = BTA_GATT_OK;
+    }
+    else
+    {
+        cb_data.srvc_oper.status = BTA_GATT_ERROR;
+    }
+
+    if (p_rcb->p_cback)
+        (*p_rcb->p_cback)(BTA_GATTS_START_EVT, &cb_data);
+
+}
+/*******************************************************************************
+**
+** Function         bta_gatts_stop_service
+**
+** Description      action function to stop a service.
+**
+** Returns          none.
+**
+*******************************************************************************/
+void bta_gatts_stop_service(tBTA_GATTS_SRVC_CB *p_srvc_cb, tBTA_GATTS_DATA * p_msg)
+{
+    tBTA_GATTS_RCB *p_rcb = &bta_gatts_cb.rcb[p_srvc_cb->rcb_idx];
+    tBTA_GATTS      cb_data;
+    UNUSED(p_msg);
+
+    GATTS_StopService(p_srvc_cb->service_id);
+    cb_data.srvc_oper.server_if = p_rcb->gatt_if;
+    cb_data.srvc_oper.service_id = p_srvc_cb->service_id;
+    cb_data.srvc_oper.status = BTA_GATT_OK;
+    APPL_TRACE_ERROR("bta_gatts_stop_service service_id= %d", p_srvc_cb->service_id);
+
+    if (p_rcb->p_cback)
+        (*p_rcb->p_cback)(BTA_GATTS_STOP_EVT, &cb_data);
+
+}
+/*******************************************************************************
+**
+** Function         bta_gatts_send_rsp
+**
+** Description      GATTS send response.
+**
+** Returns          none.
+**
+*******************************************************************************/
+void bta_gatts_send_rsp (tBTA_GATTS_CB *p_cb, tBTA_GATTS_DATA * p_msg)
+{
+    UNUSED(p_cb);
+
+    if (GATTS_SendRsp (p_msg->api_rsp.hdr.layer_specific,
+                        p_msg->api_rsp.trans_id,
+                        p_msg->api_rsp.status,
+                        (tGATTS_RSP *)p_msg->api_rsp.p_rsp) != GATT_SUCCESS)
+    {
+        APPL_TRACE_ERROR("Sending response failed");
+    }
+
+}
+/*******************************************************************************
+**
+** Function         bta_gatts_indicate_handle
+**
+** Description      GATTS send handle value indication or notification.
+**
+** Returns          none.
+**
+*******************************************************************************/
+void bta_gatts_indicate_handle (tBTA_GATTS_CB *p_cb, tBTA_GATTS_DATA * p_msg)
+{
+    tBTA_GATTS_SRVC_CB  *p_srvc_cb;
+    tBTA_GATTS_RCB      *p_rcb = NULL;
+    tBTA_GATT_STATUS    status = BTA_GATT_ILLEGAL_PARAMETER;
+    tGATT_IF            gatt_if;
+    BD_ADDR             remote_bda;
+    tBTA_TRANSPORT transport;
+    tBTA_GATTS          cb_data;
+
+    p_srvc_cb = bta_gatts_find_srvc_cb_by_attr_id (p_cb, p_msg->api_indicate.attr_id);
+
+    if (p_srvc_cb )
+    {
+        if (GATT_GetConnectionInfor(p_msg->api_indicate.hdr.layer_specific,
+            &gatt_if, remote_bda, &transport))
+        {
+            p_rcb = bta_gatts_find_app_rcb_by_app_if(gatt_if);
+
+            if (p_msg->api_indicate.need_confirm)
+
+                status = GATTS_HandleValueIndication (p_msg->api_indicate.hdr.layer_specific,
+                                                      p_msg->api_indicate.attr_id,
+                                                      p_msg->api_indicate.len,
+                                                      p_msg->api_indicate.value);
+            else
+                status = GATTS_HandleValueNotification (p_msg->api_indicate.hdr.layer_specific,
+                                                        p_msg->api_indicate.attr_id,
+                                                        p_msg->api_indicate.len,
+                                                        p_msg->api_indicate.value);
+
+            /* if over BR_EDR, inform PM for mode change */
+            if (transport == BTA_TRANSPORT_BR_EDR)
+            {
+                bta_sys_busy(BTA_ID_GATTS, BTA_ALL_APP_ID, remote_bda);
+                bta_sys_idle(BTA_ID_GATTS, BTA_ALL_APP_ID, remote_bda);
+            }
+        }
+        else
+        {
+            APPL_TRACE_ERROR("Unknown connection ID: %d fail sending notification",
+                              p_msg->api_indicate.hdr.layer_specific);
+        }
+
+        if ((status != GATT_SUCCESS || !p_msg->api_indicate.need_confirm) &&
+            p_rcb && p_cb->rcb[p_srvc_cb->rcb_idx].p_cback)
+        {
+            cb_data.req_data.status = status;
+            cb_data.req_data.conn_id = p_msg->api_indicate.hdr.layer_specific;
+
+            (*p_rcb->p_cback)(BTA_GATTS_CONF_EVT, &cb_data);
+        }
+    }
+    else
+    {
+        APPL_TRACE_ERROR("Not an registered servce attribute ID: 0x%04x",
+                          p_msg->api_indicate.attr_id);
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         bta_gatts_open
+**
+** Description
+**
+** Returns          none.
+**
+*******************************************************************************/
+void bta_gatts_open (tBTA_GATTS_CB *p_cb, tBTA_GATTS_DATA * p_msg)
+{
+    tBTA_GATTS_RCB      *p_rcb=NULL;
+    tBTA_GATT_STATUS    status= BTA_GATT_ERROR;
+    UINT16              conn_id;
+    UNUSED(p_cb);
+
+    if ((p_rcb = bta_gatts_find_app_rcb_by_app_if(p_msg->api_open.server_if)) != NULL)
+    {
+        /* should always get the connection ID */
+        if (GATT_Connect(p_rcb->gatt_if, p_msg->api_open.remote_bda,
+                        p_msg->api_open.is_direct, p_msg->api_open.transport))
+        {
+            status = BTA_GATT_OK;
+
+            if (GATT_GetConnIdIfConnected(p_rcb->gatt_if, p_msg->api_open.remote_bda,
+                                            &conn_id, p_msg->api_open.transport))
+            {
+                status = BTA_GATT_ALREADY_OPEN;
+            }
+        }
+    }
+    else
+    {
+        APPL_TRACE_ERROR("Inavlide server_if=%d", p_msg->api_open.server_if);
+    }
+
+    if (p_rcb && p_rcb->p_cback)
+        (*p_rcb->p_cback)(BTA_GATTS_OPEN_EVT,  (tBTA_GATTS *)&status);
+
+}
+/*******************************************************************************
+**
+** Function         bta_gatts_cancel_open
+**
+** Description
+**
+** Returns          none.
+**
+*******************************************************************************/
+void bta_gatts_cancel_open (tBTA_GATTS_CB *p_cb, tBTA_GATTS_DATA * p_msg)
+{
+    tBTA_GATTS_RCB      *p_rcb;
+    tBTA_GATT_STATUS    status= BTA_GATT_ERROR;
+    UNUSED(p_cb);
+
+    if ((p_rcb = bta_gatts_find_app_rcb_by_app_if(p_msg->api_cancel_open.server_if)) != NULL)
+    {
+        if (!GATT_CancelConnect(p_rcb->gatt_if, p_msg->api_cancel_open.remote_bda,
+                                p_msg->api_cancel_open.is_direct))
+        {
+            APPL_TRACE_ERROR("bta_gatts_cancel_open failed for open request");
+        }
+        else
+        {
+            status= BTA_GATT_OK;
+        }
+    }
+    else
+    {
+        APPL_TRACE_ERROR("Inavlide server_if=%d", p_msg->api_cancel_open.server_if);
+    }
+
+    if (p_rcb && p_rcb->p_cback)
+        (*p_rcb->p_cback)(BTA_GATTS_CANCEL_OPEN_EVT,  (tBTA_GATTS *)&status);
+}
+/*******************************************************************************
+**
+** Function         bta_gatts_close
+**
+** Description
+**
+** Returns          none.
+**
+*******************************************************************************/
+void bta_gatts_close (tBTA_GATTS_CB *p_cb, tBTA_GATTS_DATA * p_msg)
+{
+    tBTA_GATTS_RCB     *p_rcb;
+    tBTA_GATT_STATUS    status= BTA_GATT_ERROR;
+    tGATT_IF            gatt_if;
+    BD_ADDR             remote_bda;
+    tBTA_GATT_TRANSPORT transport;
+
+    UNUSED(p_cb);
+
+    if (GATT_GetConnectionInfor(p_msg->hdr.layer_specific, &gatt_if, remote_bda, &transport))
+    {
+        if (GATT_Disconnect(p_msg->hdr.layer_specific) != GATT_SUCCESS)
+        {
+            APPL_TRACE_ERROR("bta_gatts_close fail conn_id=%d", p_msg->hdr.layer_specific);
+        }
+        else
+        {
+            status= BTA_GATT_OK;
+        }
+
+        p_rcb = bta_gatts_find_app_rcb_by_app_if(gatt_if);
+
+        if (p_rcb && p_rcb->p_cback)
+        {
+            if (transport == BTA_TRANSPORT_BR_EDR)
+                bta_sys_conn_close( BTA_ID_GATTS ,BTA_ALL_APP_ID, remote_bda);
+
+            (*p_rcb->p_cback)(BTA_GATTS_CLOSE_EVT,  (tBTA_GATTS *)&status);
+        }
+    }
+    else
+    {
+        APPL_TRACE_ERROR("Unknown connection ID: %d", p_msg->hdr.layer_specific);
+    }
+
+}
+/*******************************************************************************
+**
+** Function         bta_gatts_listen
+**
+** Description      Start or stop listening for LE connection on a GATT server
+**
+** Returns          none.
+**
+*******************************************************************************/
+void bta_gatts_listen(tBTA_GATTS_CB *p_cb, tBTA_GATTS_DATA * p_msg)
+{
+    tBTA_GATTS_RCB     *p_rcb = bta_gatts_find_app_rcb_by_app_if(p_msg->api_listen.server_if);
+    tBTA_GATTS          cb_data;
+    UNUSED(p_cb);
+
+    cb_data.reg_oper.status = BTA_GATT_OK;
+    cb_data.reg_oper.server_if = p_msg->api_listen.server_if;
+
+    if (p_rcb == NULL)
+    {
+        APPL_TRACE_ERROR("Unknown GATTS application");
+        return;
+    }
+
+    if (!GATT_Listen(p_msg->api_listen.server_if,
+                     p_msg->api_listen.start,
+                     p_msg->api_listen.remote_bda))
+    {
+        cb_data.status = BTA_GATT_ERROR;
+        APPL_TRACE_ERROR("bta_gatts_listen Listen failed");
+    }
+
+    if (p_rcb->p_cback)
+        (*p_rcb->p_cback)(BTA_GATTS_LISTEN_EVT, &cb_data);
+}
+
+/*******************************************************************************
+**
+** Function         bta_gatts_request_cback
+**
+** Description      GATTS attribute request callback.
+**
+** Returns          none.
+**
+*******************************************************************************/
+static void bta_gatts_send_request_cback (UINT16 conn_id,
+                                          UINT32 trans_id,
+                                          tGATTS_REQ_TYPE req_type, tGATTS_DATA *p_data)
+{
+    tBTA_GATTS          cb_data;
+    tBTA_GATTS_RCB     *p_rcb;
+    tGATT_IF            gatt_if;
+    tBTA_GATT_TRANSPORT transport;
+
+    memset(&cb_data, 0 , sizeof(tBTA_GATTS));
+
+    if (GATT_GetConnectionInfor(conn_id, &gatt_if, cb_data.req_data.remote_bda, &transport))
+    {
+        p_rcb = bta_gatts_find_app_rcb_by_app_if(gatt_if);
+
+        APPL_TRACE_DEBUG ("bta_gatts_send_request_cback conn_id=%d trans_id=%d req_type=%d",
+                            conn_id, trans_id, req_type);
+
+        if (p_rcb && p_rcb->p_cback)
+        {
+            /* if over BR_EDR, inform PM for mode change */
+            if (transport == BTA_TRANSPORT_BR_EDR)
+            {
+                bta_sys_busy(BTA_ID_GATTS, BTA_ALL_APP_ID, cb_data.req_data.remote_bda);
+                bta_sys_idle(BTA_ID_GATTS, BTA_ALL_APP_ID, cb_data.req_data.remote_bda);
+            }
+
+            cb_data.req_data.conn_id    = conn_id;
+            cb_data.req_data.trans_id   = trans_id;
+            cb_data.req_data.p_data     = (tBTA_GATTS_REQ_DATA *)p_data;
+
+            (*p_rcb->p_cback)(req_type,  &cb_data);
+        }
+        else
+        {
+            APPL_TRACE_ERROR("connection request on gatt_if[%d] is not interested", gatt_if);
+        }
+    }
+    else
+    {
+        APPL_TRACE_ERROR("request received on unknown connectino ID: %d", conn_id);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_gatts_conn_cback
+**
+** Description      connection callback.
+**
+** Returns          none.
+**
+*******************************************************************************/
+static void bta_gatts_conn_cback (tGATT_IF gatt_if, BD_ADDR bda, UINT16 conn_id,
+                                  BOOLEAN connected, tGATT_DISCONN_REASON reason,
+                                  tGATT_TRANSPORT transport)
+{
+    tBTA_GATTS      cb_data;
+    UINT8           evt = connected ? BTA_GATTS_CONNECT_EVT: BTA_GATTS_DISCONNECT_EVT;
+    tBTA_GATTS_RCB  *p_reg;
+
+    APPL_TRACE_DEBUG ("bta_gatts_conn_cback gatt_if=%d conn_id=%d connected=%d reason = 0x%04d",
+                        gatt_if, conn_id, connected, reason);
+    APPL_TRACE_DEBUG("bta_gatts_conn_cback  bda :%02x-%02x-%02x-%02x-%02x-%02x ",
+                      bda[0],  bda[1], bda[2],  bda[3], bda[4],  bda[5]);
+
+    bt_bdaddr_t bdaddr;
+    bdcpy(bdaddr.address, bda);
+    if (connected)
+        btif_debug_conn_state(bdaddr, BTIF_DEBUG_CONNECTED, GATT_CONN_UNKNOWN);
+    else
+        btif_debug_conn_state(bdaddr, BTIF_DEBUG_DISCONNECTED, reason);
+
+    p_reg = bta_gatts_find_app_rcb_by_app_if(gatt_if);
+
+    if (p_reg && p_reg->p_cback)
+    {
+        /* there is no RM for GATT */
+        if (transport == BTA_TRANSPORT_BR_EDR)
+        {
+            if (connected)
+                bta_sys_conn_open(BTA_ID_GATTS, BTA_ALL_APP_ID, bda);
+            else
+                bta_sys_conn_close( BTA_ID_GATTS ,BTA_ALL_APP_ID, bda);
+        }
+
+        cb_data.conn.conn_id = conn_id;
+        cb_data.conn.server_if = gatt_if;
+        cb_data.conn.reason = reason;
+        cb_data.conn.transport = transport;
+        memcpy(cb_data.conn.remote_bda, bda, BD_ADDR_LEN);
+        (*p_reg->p_cback)(evt, &cb_data);
+    }
+    else
+    {
+        APPL_TRACE_ERROR("bta_gatts_conn_cback server_if=%d not found",gatt_if);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_gatts_cong_cback
+**
+** Description      congestion callback.
+**
+** Returns          none.
+**
+*******************************************************************************/
+static void bta_gatts_cong_cback (UINT16 conn_id, BOOLEAN congested)
+{
+    tBTA_GATTS_RCB *p_rcb;
+    tGATT_IF gatt_if;
+    tBTA_GATT_TRANSPORT transport;
+    tBTA_GATTS cb_data;
+
+    if (GATT_GetConnectionInfor(conn_id, &gatt_if, cb_data.req_data.remote_bda, &transport))
+    {
+        p_rcb = bta_gatts_find_app_rcb_by_app_if(gatt_if);
+
+        if (p_rcb && p_rcb->p_cback)
+        {
+            cb_data.congest.conn_id = conn_id;
+            cb_data.congest.congested = congested;
+
+            (*p_rcb->p_cback)(BTA_GATTS_CONGEST_EVT, &cb_data);
+        }
+    }
+}
+#endif /* BTA_GATT_INCLUDED */
diff --git a/rtkbt/code/bt/bta/gatt/bta_gatts_api.c b/rtkbt/code/bt/bta/gatt/bta_gatts_api.c
new file mode 100755
index 0000000..c00653f
--- /dev/null
+++ b/rtkbt/code/bt/bta/gatt/bta_gatts_api.c
@@ -0,0 +1,492 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2010-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the implementation of the API for GATT server of BTA.
+ *
+ ******************************************************************************/
+
+#include "bt_target.h"
+
+#if defined(BTA_GATT_INCLUDED) && (BTA_GATT_INCLUDED == TRUE)
+
+#include <string.h>
+#include "bt_common.h"
+#include "bta_sys.h"
+#include "bta_gatt_api.h"
+#include "bta_gatts_int.h"
+
+/*****************************************************************************
+**  Constants
+*****************************************************************************/
+
+static const tBTA_SYS_REG bta_gatts_reg =
+{
+    bta_gatts_hdl_event,
+    BTA_GATTS_Disable
+};
+
+/*******************************************************************************
+**
+** Function         BTA_GATTS_Disable
+**
+** Description      This function is called to disable GATTS module
+**
+** Parameters       None.
+**
+** Returns          None
+**
+*******************************************************************************/
+void BTA_GATTS_Disable(void)
+{
+    if (bta_sys_is_register(BTA_ID_GATTS) == FALSE)
+    {
+        APPL_TRACE_WARNING("GATTS Module not enabled/already disabled");
+        return;
+    }
+
+    BT_HDR *p_buf = (BT_HDR *)osi_malloc(sizeof(BT_HDR));
+    p_buf->event = BTA_GATTS_API_DISABLE_EVT;
+    bta_sys_sendmsg(p_buf);
+    bta_sys_deregister(BTA_ID_GATTS);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_GATTS_AppRegister
+**
+** Description      This function is called to register application callbacks
+**                    with BTA GATTS module.
+**
+** Parameters       p_app_uuid - applicaiton UUID
+**                  p_cback - pointer to the application callback function.
+**
+** Returns          None
+**
+*******************************************************************************/
+void BTA_GATTS_AppRegister(tBT_UUID *p_app_uuid, tBTA_GATTS_CBACK *p_cback)
+{
+    tBTA_GATTS_API_REG *p_buf =
+        (tBTA_GATTS_API_REG *)osi_malloc(sizeof(tBTA_GATTS_API_REG));
+
+    /* register with BTA system manager */
+    if (bta_sys_is_register(BTA_ID_GATTS) == FALSE)
+        bta_sys_register(BTA_ID_GATTS, &bta_gatts_reg);
+
+    p_buf->hdr.event = BTA_GATTS_API_REG_EVT;
+    if (p_app_uuid != NULL)
+        memcpy(&p_buf->app_uuid, p_app_uuid, sizeof(tBT_UUID));
+    p_buf->p_cback = p_cback;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+
+
+/*******************************************************************************
+**
+** Function         BTA_GATTS_AppDeregister
+**
+** Description      De-register with GATT Server.
+**
+** Parameters       app_id: applicatino ID.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_GATTS_AppDeregister(tBTA_GATTS_IF server_if)
+{
+    tBTA_GATTS_API_DEREG *p_buf =
+        (tBTA_GATTS_API_DEREG *)osi_malloc(sizeof(tBTA_GATTS_API_DEREG));
+
+    p_buf->hdr.event = BTA_GATTS_API_DEREG_EVT;
+    p_buf->server_if = server_if;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_GATTS_CreateService
+**
+** Description      Create a service. When service creation is done, a callback
+**                  event BTA_GATTS_CREATE_SRVC_EVT is called to report status
+**                  and service ID to the profile. The service ID obtained in
+**                  the callback function needs to be used when adding included
+**                  service and characteristics/descriptors into the service.
+**
+** Parameters       app_id: Profile ID this service is belonged to.
+**                  p_service_uuid: service UUID.
+**                  inst: instance ID number of this service.
+**                  num_handle: numble of handle requessted for this service.
+**                  is_primary: is this service a primary one or not.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_GATTS_CreateService(tBTA_GATTS_IF server_if, tBT_UUID *p_service_uuid, UINT8 inst,
+                             UINT16 num_handle, BOOLEAN is_primary)
+{
+    tBTA_GATTS_API_CREATE_SRVC *p_buf =
+        (tBTA_GATTS_API_CREATE_SRVC *)osi_malloc(sizeof(tBTA_GATTS_API_CREATE_SRVC));
+
+    p_buf->hdr.event = BTA_GATTS_API_CREATE_SRVC_EVT;
+    p_buf->server_if = server_if;
+    p_buf->inst = inst;
+    memcpy(&p_buf->service_uuid, p_service_uuid, sizeof(tBT_UUID));
+    p_buf->num_handle = num_handle;
+    p_buf->is_pri = is_primary;
+
+    bta_sys_sendmsg(p_buf);
+}
+/*******************************************************************************
+**
+** Function         BTA_GATTS_AddIncludeService
+**
+** Description      This function is called to add an included service. After included
+**                  service is included, a callback event BTA_GATTS_ADD_INCL_SRVC_EVT
+**                  is reported the included service ID.
+**
+** Parameters       service_id: service ID to which this included service is to
+**                              be added.
+**                  included_service_id: the service ID to be included.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_GATTS_AddIncludeService(UINT16 service_id, UINT16 included_service_id)
+{
+    tBTA_GATTS_API_ADD_INCL_SRVC *p_buf =
+        (tBTA_GATTS_API_ADD_INCL_SRVC *)osi_malloc(sizeof(tBTA_GATTS_API_ADD_INCL_SRVC));
+
+    p_buf->hdr.event = BTA_GATTS_API_ADD_INCL_SRVC_EVT;
+    p_buf->hdr.layer_specific = service_id;
+    p_buf->included_service_id = included_service_id;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_GATTS_AddCharacteristic
+**
+** Description      This function is called to add a characteristic into a service.
+**
+** Parameters       service_id: service ID to which this included service is to
+**                              be added.
+**                  p_char_uuid : Characteristic UUID.
+**                  perm      : Characteristic value declaration attribute permission.
+**                  property  : Characteristic Properties
+**
+** Returns          None
+**
+*******************************************************************************/
+void BTA_GATTS_AddCharacteristic (UINT16 service_id,  tBT_UUID  *p_char_uuid,
+                                  tBTA_GATT_PERM perm, tBTA_GATT_CHAR_PROP property)
+{
+    tBTA_GATTS_API_ADD_CHAR *p_buf =
+        (tBTA_GATTS_API_ADD_CHAR *)osi_calloc(sizeof(tBTA_GATTS_API_ADD_CHAR));
+
+    p_buf->hdr.event = BTA_GATTS_API_ADD_CHAR_EVT;
+    p_buf->hdr.layer_specific = service_id;
+    p_buf->perm = perm;
+    p_buf->property = property;
+
+    if (p_char_uuid)
+        memcpy(&p_buf->char_uuid, p_char_uuid, sizeof(tBT_UUID));
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_GATTS_AddCharDescriptor
+**
+** Description      This function is called to add characteristic descriptor. When
+**                  it's done, a callback event BTA_GATTS_ADD_DESCR_EVT is called
+**                  to report the status and an ID number for this descriptor.
+**
+** Parameters       service_id: service ID to which this charatceristic descriptor is to
+**                              be added.
+**                  perm: descriptor access permission.
+**                  p_descr_uuid: descriptor UUID.
+**
+** Returns          returns status.
+**
+*******************************************************************************/
+void BTA_GATTS_AddCharDescriptor (UINT16 service_id,
+                                  tBTA_GATT_PERM perm,
+                                  tBT_UUID  * p_descr_uuid)
+{
+    tBTA_GATTS_API_ADD_DESCR *p_buf =
+        (tBTA_GATTS_API_ADD_DESCR *)osi_calloc(sizeof(tBTA_GATTS_API_ADD_DESCR));
+
+    p_buf->hdr.event = BTA_GATTS_API_ADD_DESCR_EVT;
+    p_buf->hdr.layer_specific = service_id;
+    p_buf->perm = perm;
+    if (p_descr_uuid)
+        memcpy(&p_buf->descr_uuid, p_descr_uuid, sizeof(tBT_UUID));
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_GATTS_DeleteService
+**
+** Description      This function is called to delete a service. When this is done,
+**                  a callback event BTA_GATTS_DELETE_EVT is report with the status.
+**
+** Parameters       service_id: service_id to be deleted.
+**
+** Returns          returns none.
+**
+*******************************************************************************/
+void BTA_GATTS_DeleteService(UINT16 service_id)
+{
+    BT_HDR *p_buf = (BT_HDR *)osi_malloc(sizeof(BT_HDR));
+
+    p_buf->event = BTA_GATTS_API_DEL_SRVC_EVT;
+    p_buf->layer_specific = service_id;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_GATTS_StartService
+**
+** Description      This function is called to start a service.
+**
+** Parameters       service_id: the service ID to be started.
+**                  sup_transport: supported trasnport.
+**
+** Returns          None.
+**
+*******************************************************************************/
+void BTA_GATTS_StartService(UINT16 service_id, tBTA_GATT_TRANSPORT sup_transport)
+{
+    tBTA_GATTS_API_START *p_buf =
+        (tBTA_GATTS_API_START *)osi_malloc(sizeof(tBTA_GATTS_API_START));
+
+    p_buf->hdr.event = BTA_GATTS_API_START_SRVC_EVT;
+    p_buf->hdr.layer_specific = service_id;
+    p_buf->transport = sup_transport;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_GATTS_StopService
+**
+** Description      This function is called to stop a service.
+**
+** Parameters       service_id - service to be topped.
+**
+** Returns          None
+**
+*******************************************************************************/
+void BTA_GATTS_StopService(UINT16 service_id)
+{
+    BT_HDR *p_buf = (BT_HDR *)osi_malloc(sizeof(BT_HDR));
+
+    p_buf->event = BTA_GATTS_API_STOP_SRVC_EVT;
+    p_buf->layer_specific = service_id;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_GATTS_HandleValueIndication
+**
+** Description      This function is called to read a characteristics descriptor.
+**
+** Parameters       bda - remote device bd address to indicate.
+**					attr_id - attribute ID to indicate.
+**                  data_len - indicate data length.
+**                  p_data: data to indicate.
+**                  need_confirm - if this indication expects a confirmation or not.
+**
+** Returns          None
+**
+*******************************************************************************/
+void BTA_GATTS_HandleValueIndication (UINT16 conn_id, UINT16 attr_id, UINT16 data_len,
+                                      UINT8 *p_data, BOOLEAN need_confirm)
+{
+    tBTA_GATTS_API_INDICATION *p_buf =
+        (tBTA_GATTS_API_INDICATION *)osi_calloc(sizeof(tBTA_GATTS_API_INDICATION));
+
+    p_buf->hdr.event = BTA_GATTS_API_INDICATION_EVT;
+    p_buf->hdr.layer_specific = conn_id;
+    p_buf->attr_id = attr_id;
+    p_buf->need_confirm = need_confirm;
+    if (data_len > 0 && p_data != NULL) {
+        p_buf->len = data_len;
+        memcpy(p_buf->value, p_data, data_len);
+    }
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_GATTS_SendRsp
+**
+** Description      This function is called to send a response to a request.
+**
+** Parameters       conn_id - connection identifier.
+**                  trans_id - transaction ID.
+**                  status - response status
+**                  p_msg - response data.
+**
+** Returns          None
+**
+*******************************************************************************/
+void BTA_GATTS_SendRsp (UINT16 conn_id, UINT32 trans_id,
+                        tBTA_GATT_STATUS status, tBTA_GATTS_RSP *p_msg)
+{
+    const size_t len = sizeof(tBTA_GATTS_API_RSP) + sizeof(tBTA_GATTS_RSP);
+    tBTA_GATTS_API_RSP *p_buf = (tBTA_GATTS_API_RSP *)osi_calloc(len);
+
+    p_buf->hdr.event = BTA_GATTS_API_RSP_EVT;
+    p_buf->hdr.layer_specific = conn_id;
+    p_buf->trans_id = trans_id;
+    p_buf->status = status;
+    if (p_msg != NULL) {
+        p_buf->p_rsp = (tBTA_GATTS_RSP *)(p_buf + 1);
+        memcpy(p_buf->p_rsp, p_msg, sizeof(tBTA_GATTS_RSP));
+    }
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_GATTS_Open
+**
+** Description      Open a direct open connection or add a background auto connection
+**                  bd address
+**
+** Parameters       server_if: server interface.
+**                  remote_bda: remote device BD address.
+**                  is_direct: direct connection or background auto connection
+**                  transport : Transport on which GATT connection to be opened (BR/EDR or LE)
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_GATTS_Open(tBTA_GATTS_IF server_if, BD_ADDR remote_bda, BOOLEAN is_direct,
+                    tBTA_GATT_TRANSPORT transport)
+{
+    tBTA_GATTS_API_OPEN *p_buf =
+        (tBTA_GATTS_API_OPEN *)osi_malloc(sizeof(tBTA_GATTS_API_OPEN));
+
+    p_buf->hdr.event = BTA_GATTS_API_OPEN_EVT;
+    p_buf->server_if = server_if;
+    p_buf->is_direct = is_direct;
+    p_buf->transport = transport;
+    memcpy(p_buf->remote_bda, remote_bda, BD_ADDR_LEN);
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_GATTS_CancelOpen
+**
+** Description      Cancel a direct open connection or remove a background auto connection
+**                  bd address
+**
+** Parameters       server_if: server interface.
+**                  remote_bda: remote device BD address.
+**                  is_direct: direct connection or background auto connection
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_GATTS_CancelOpen(tBTA_GATTS_IF server_if, BD_ADDR remote_bda, BOOLEAN is_direct)
+{
+    tBTA_GATTS_API_CANCEL_OPEN *p_buf =
+        (tBTA_GATTS_API_CANCEL_OPEN *)osi_malloc(sizeof(tBTA_GATTS_API_CANCEL_OPEN));
+
+    p_buf->hdr.event = BTA_GATTS_API_CANCEL_OPEN_EVT;
+    p_buf->server_if = server_if;
+    p_buf->is_direct = is_direct;
+    memcpy(p_buf->remote_bda, remote_bda, BD_ADDR_LEN);
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_GATTS_Close
+**
+** Description      Close a connection  a remote device.
+**
+** Parameters       conn_id: connectino ID to be closed.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_GATTS_Close(UINT16 conn_id)
+{
+    BT_HDR *p_buf = (BT_HDR *)osi_malloc(sizeof(BT_HDR));
+
+    p_buf->event = BTA_GATTS_API_CLOSE_EVT;
+    p_buf->layer_specific = conn_id;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_GATTS_Listen
+**
+** Description      Start advertisement to listen for connection request for a
+**                  GATT server
+**
+** Parameters       server_if: server interface.
+**                  start: to start or stop listening for connection
+**                  remote_bda: remote device BD address, if listen to all device
+**                              use NULL.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_GATTS_Listen(tBTA_GATTS_IF server_if, BOOLEAN start, BD_ADDR_PTR target_bda)
+{
+    tBTA_GATTS_API_LISTEN *p_buf =
+        (tBTA_GATTS_API_LISTEN *)osi_malloc(sizeof(tBTA_GATTS_API_LISTEN) + BD_ADDR_LEN);
+
+    p_buf->hdr.event = BTA_GATTS_API_LISTEN_EVT;
+    p_buf->server_if = server_if;
+    p_buf->start = start;
+    if (target_bda) {
+        p_buf->remote_bda = (UINT8 *)(p_buf + 1);
+        memcpy(p_buf->remote_bda, target_bda, BD_ADDR_LEN);
+    } else {
+       p_buf->remote_bda = NULL;
+    }
+
+    bta_sys_sendmsg(p_buf);
+}
+
+#endif /* BTA_GATT_INCLUDED */
diff --git a/rtkbt/code/bt/bta/gatt/bta_gatts_int.h b/rtkbt/code/bt/bta/gatt/bta_gatts_int.h
new file mode 100755
index 0000000..115ba98
--- /dev/null
+++ b/rtkbt/code/bt/bta/gatt/bta_gatts_int.h
@@ -0,0 +1,260 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the private file for the BTA GATT server.
+ *
+ ******************************************************************************/
+#ifndef BTA_GATTS_INT_H
+#define BTA_GATTS_INT_H
+
+#include "bt_target.h"
+#include "bta_sys.h"
+#include "bta_gatt_api.h"
+#include "gatt_api.h"
+
+#include "bt_common.h"
+
+/*****************************************************************************
+**  Constants and data types
+*****************************************************************************/
+enum
+{
+    BTA_GATTS_API_REG_EVT  = BTA_SYS_EVT_START(BTA_ID_GATTS),
+    BTA_GATTS_INT_START_IF_EVT,
+    BTA_GATTS_API_DEREG_EVT,
+    BTA_GATTS_API_CREATE_SRVC_EVT,
+    BTA_GATTS_API_INDICATION_EVT,
+
+    BTA_GATTS_API_ADD_INCL_SRVC_EVT,
+    BTA_GATTS_API_ADD_CHAR_EVT,
+    BTA_GATTS_API_ADD_DESCR_EVT,
+    BTA_GATTS_API_DEL_SRVC_EVT,
+    BTA_GATTS_API_START_SRVC_EVT,
+    BTA_GATTS_API_STOP_SRVC_EVT,
+    BTA_GATTS_API_RSP_EVT,
+    BTA_GATTS_API_OPEN_EVT,
+    BTA_GATTS_API_CANCEL_OPEN_EVT,
+    BTA_GATTS_API_CLOSE_EVT,
+    BTA_GATTS_API_LISTEN_EVT,
+    BTA_GATTS_API_DISABLE_EVT
+};
+typedef UINT16 tBTA_GATTS_INT_EVT;
+
+/* max number of application allowed on device */
+#define BTA_GATTS_MAX_APP_NUM   GATT_MAX_SR_PROFILES
+
+/* max number of services allowed in the device */
+#define BTA_GATTS_MAX_SRVC_NUM   GATT_MAX_SR_PROFILES
+
+/* internal strucutre for GATTC register API  */
+typedef struct
+{
+    BT_HDR                  hdr;
+    tBT_UUID                app_uuid;
+    tBTA_GATTS_CBACK        *p_cback;
+}tBTA_GATTS_API_REG;
+
+typedef struct
+{
+    BT_HDR                  hdr;
+    tBTA_GATTS_IF           server_if;
+}tBTA_GATTS_INT_START_IF;
+
+typedef tBTA_GATTS_INT_START_IF tBTA_GATTS_API_DEREG;
+
+typedef struct
+{
+    BT_HDR                  hdr;
+    tBTA_GATTS_IF           server_if;
+    tBT_UUID                service_uuid;
+    UINT16                  num_handle;
+    UINT8                   inst;
+    BOOLEAN                 is_pri;
+
+} tBTA_GATTS_API_CREATE_SRVC;
+
+typedef struct
+{
+    BT_HDR                  hdr;
+    tBT_UUID                char_uuid;
+    tBTA_GATT_PERM          perm;
+    tBTA_GATT_CHAR_PROP     property;
+
+}tBTA_GATTS_API_ADD_CHAR;
+
+typedef struct
+{
+    BT_HDR                  hdr;
+    UINT16                  included_service_id;
+
+}tBTA_GATTS_API_ADD_INCL_SRVC;
+
+typedef struct
+{
+    BT_HDR                      hdr;
+    tBT_UUID                    descr_uuid;
+    tBTA_GATT_PERM              perm;
+}tBTA_GATTS_API_ADD_DESCR;
+
+typedef struct
+{
+    BT_HDR  hdr;
+    UINT16  attr_id;
+    UINT16  len;
+    BOOLEAN need_confirm;
+    UINT8   value[BTA_GATT_MAX_ATTR_LEN];
+}tBTA_GATTS_API_INDICATION;
+
+typedef struct
+{
+    BT_HDR              hdr;
+    UINT32              trans_id;
+    tBTA_GATT_STATUS    status;
+    tBTA_GATTS_RSP      *p_rsp;
+}tBTA_GATTS_API_RSP;
+
+typedef struct
+{
+    BT_HDR                  hdr;
+    tBTA_GATT_TRANSPORT     transport;
+}tBTA_GATTS_API_START;
+
+
+typedef struct
+{
+    BT_HDR                  hdr;
+    BD_ADDR                 remote_bda;
+    tBTA_GATTS_IF           server_if;
+    BOOLEAN                 is_direct;
+    tBTA_GATT_TRANSPORT     transport;
+
+}tBTA_GATTS_API_OPEN;
+
+typedef tBTA_GATTS_API_OPEN tBTA_GATTS_API_CANCEL_OPEN;
+
+typedef struct
+{
+    BT_HDR                  hdr;
+    BD_ADDR_PTR             remote_bda;
+    tBTA_GATTS_IF           server_if;
+    BOOLEAN                 start;
+} tBTA_GATTS_API_LISTEN;
+
+typedef union
+{
+    BT_HDR                          hdr;
+    tBTA_GATTS_API_REG              api_reg;
+    tBTA_GATTS_API_DEREG            api_dereg;
+    tBTA_GATTS_API_CREATE_SRVC      api_create_svc;
+    tBTA_GATTS_API_ADD_INCL_SRVC    api_add_incl_srvc;
+    tBTA_GATTS_API_ADD_CHAR         api_add_char;
+    tBTA_GATTS_API_ADD_DESCR        api_add_char_descr;
+    tBTA_GATTS_API_START            api_start;
+    tBTA_GATTS_API_INDICATION       api_indicate;
+    tBTA_GATTS_API_RSP              api_rsp;
+    tBTA_GATTS_API_OPEN             api_open;
+    tBTA_GATTS_API_CANCEL_OPEN      api_cancel_open;
+
+    tBTA_GATTS_INT_START_IF         int_start_if;
+    /* if peripheral role is supported */
+    tBTA_GATTS_API_LISTEN           api_listen;
+} tBTA_GATTS_DATA;
+
+/* application registration control block */
+typedef struct
+{
+    BOOLEAN             in_use;
+    tBT_UUID            app_uuid;
+    tBTA_GATTS_CBACK    *p_cback;
+    tBTA_GATTS_IF        gatt_if;
+}tBTA_GATTS_RCB;
+
+/* service registration control block */
+typedef struct
+{
+    tBT_UUID    service_uuid;   /* service UUID */
+    UINT16      service_id;     /* service handle */
+    UINT8       inst_num;       /* instance ID */
+    UINT8       rcb_idx;
+    UINT8       idx;            /* self index of serviec CB */
+    BOOLEAN     in_use;
+
+}tBTA_GATTS_SRVC_CB;
+
+
+/* GATT server control block */
+typedef struct
+{
+    BOOLEAN             enabled;
+    tBTA_GATTS_RCB      rcb[BTA_GATTS_MAX_APP_NUM];
+    tBTA_GATTS_SRVC_CB  srvc_cb[BTA_GATTS_MAX_SRVC_NUM];
+}tBTA_GATTS_CB;
+
+
+
+/*****************************************************************************
+**  Global data
+*****************************************************************************/
+
+/* GATTC control block */
+#if BTA_DYNAMIC_MEMORY == FALSE
+extern tBTA_GATTS_CB  bta_gatts_cb;
+#else
+extern tBTA_GATTS_CB *bta_gatts_cb_ptr;
+    #define bta_gatts_cb (*bta_gatts_cb_ptr)
+#endif
+
+/*****************************************************************************
+**  Function prototypes
+*****************************************************************************/
+extern BOOLEAN bta_gatts_hdl_event(BT_HDR *p_msg);
+
+extern void bta_gatts_api_disable(tBTA_GATTS_CB *p_cb);
+extern void bta_gatts_api_enable(tBTA_GATTS_CB *p_cb, tBTA_GATTS_DATA *p_data);
+extern void bta_gatts_register(tBTA_GATTS_CB *p_cb, tBTA_GATTS_DATA *p_msg);
+extern void bta_gatts_start_if(tBTA_GATTS_CB *p_cb, tBTA_GATTS_DATA *p_msg);
+extern void bta_gatts_deregister(tBTA_GATTS_CB *p_cb, tBTA_GATTS_DATA *p_msg);
+extern void bta_gatts_create_srvc(tBTA_GATTS_CB *p_cb, tBTA_GATTS_DATA * p_msg);
+extern void bta_gatts_add_include_srvc(tBTA_GATTS_SRVC_CB *p_srvc_cb, tBTA_GATTS_DATA * p_msg);
+extern void bta_gatts_add_char(tBTA_GATTS_SRVC_CB *p_srvc_cb, tBTA_GATTS_DATA * p_msg);
+extern void bta_gatts_add_char_descr(tBTA_GATTS_SRVC_CB *p_srvc_cb, tBTA_GATTS_DATA * p_msg);
+extern void bta_gatts_delete_service(tBTA_GATTS_SRVC_CB *p_srvc_cb, tBTA_GATTS_DATA * p_msg);
+extern void bta_gatts_start_service(tBTA_GATTS_SRVC_CB *p_srvc_cb, tBTA_GATTS_DATA * p_msg);
+extern void bta_gatts_stop_service(tBTA_GATTS_SRVC_CB *p_srvc_cb, tBTA_GATTS_DATA * p_msg);
+
+extern void bta_gatts_send_rsp(tBTA_GATTS_CB *p_cb, tBTA_GATTS_DATA * p_msg);
+extern void bta_gatts_indicate_handle (tBTA_GATTS_CB *p_cb, tBTA_GATTS_DATA * p_msg);
+
+
+extern void bta_gatts_open (tBTA_GATTS_CB *p_cb, tBTA_GATTS_DATA * p_msg);
+extern void bta_gatts_cancel_open (tBTA_GATTS_CB *p_cb, tBTA_GATTS_DATA * p_msg);
+extern void bta_gatts_close (tBTA_GATTS_CB *p_cb, tBTA_GATTS_DATA * p_msg);
+extern void bta_gatts_listen(tBTA_GATTS_CB *p_cb, tBTA_GATTS_DATA * p_msg);
+
+extern BOOLEAN bta_gatts_uuid_compare(tBT_UUID tar, tBT_UUID src);
+extern tBTA_GATTS_RCB *bta_gatts_find_app_rcb_by_app_if(tBTA_GATTS_IF server_if);
+extern UINT8 bta_gatts_find_app_rcb_idx_by_app_if(tBTA_GATTS_CB *p_cb, tBTA_GATTS_IF server_if);
+extern UINT8 bta_gatts_alloc_srvc_cb(tBTA_GATTS_CB *p_cb, UINT8 rcb_idx);
+extern tBTA_GATTS_SRVC_CB * bta_gatts_find_srvc_cb_by_srvc_id(tBTA_GATTS_CB *p_cb, UINT16 service_id);
+extern tBTA_GATTS_SRVC_CB * bta_gatts_find_srvc_cb_by_attr_id(tBTA_GATTS_CB *p_cb, UINT16 attr_id);
+
+
+#endif /* BTA_GATTS_INT_H */
+
diff --git a/rtkbt/code/bt/bta/gatt/bta_gatts_main.c b/rtkbt/code/bt/bta/gatt/bta_gatts_main.c
new file mode 100755
index 0000000..5008f5d
--- /dev/null
+++ b/rtkbt/code/bt/bta/gatt/bta_gatts_main.c
@@ -0,0 +1,143 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains the GATT server main functions and state machine.
+ *
+ ******************************************************************************/
+
+#include "bt_target.h"
+
+#if defined(BTA_GATT_INCLUDED) && (BTA_GATT_INCLUDED == TRUE)
+
+#include <string.h>
+
+#include "bta_gatts_int.h"
+#include "bt_common.h"
+
+/* type for service building action functions */
+typedef void (*tBTA_GATTS_SRVC_ACT)(tBTA_GATTS_SRVC_CB *p_rcb, tBTA_GATTS_DATA *p_data);
+
+/* service building action function list */
+const tBTA_GATTS_SRVC_ACT bta_gatts_srvc_build_act[] =
+{
+    bta_gatts_add_include_srvc,
+    bta_gatts_add_char,
+    bta_gatts_add_char_descr,
+    bta_gatts_delete_service,
+    bta_gatts_start_service,
+    bta_gatts_stop_service,
+};
+
+/* GATTS control block */
+#if BTA_DYNAMIC_MEMORY == FALSE
+tBTA_GATTS_CB  bta_gatts_cb;
+#endif
+
+/*******************************************************************************
+**
+** Function         bta_gatts_hdl_event
+**
+** Description      BTA GATT server main event handling function.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+BOOLEAN bta_gatts_hdl_event(BT_HDR *p_msg)
+{
+    tBTA_GATTS_CB *p_cb = &bta_gatts_cb;
+    tBTA_GATTS_SRVC_CB *p_srvc_cb = NULL;
+
+    switch (p_msg->event)
+    {
+        case BTA_GATTS_API_DISABLE_EVT:
+            bta_gatts_api_disable(p_cb);
+            break;
+
+        case BTA_GATTS_API_REG_EVT:
+            bta_gatts_register(p_cb, (tBTA_GATTS_DATA *) p_msg);
+            break;
+
+        case BTA_GATTS_INT_START_IF_EVT:
+            bta_gatts_start_if(p_cb, (tBTA_GATTS_DATA *) p_msg);
+            break;
+
+        case BTA_GATTS_API_DEREG_EVT:
+            bta_gatts_deregister(p_cb, (tBTA_GATTS_DATA *) p_msg);
+            break;
+
+        case BTA_GATTS_API_CREATE_SRVC_EVT:
+            bta_gatts_create_srvc(p_cb, (tBTA_GATTS_DATA *) p_msg);
+            break;
+
+        case BTA_GATTS_API_INDICATION_EVT:
+            bta_gatts_indicate_handle(p_cb,(tBTA_GATTS_DATA *) p_msg);
+            break;
+
+        case BTA_GATTS_API_OPEN_EVT:
+            bta_gatts_open(p_cb,(tBTA_GATTS_DATA *) p_msg);
+            break;
+
+        case BTA_GATTS_API_CANCEL_OPEN_EVT:
+            bta_gatts_cancel_open(p_cb,(tBTA_GATTS_DATA *) p_msg);
+            break;
+
+        case BTA_GATTS_API_CLOSE_EVT:
+            bta_gatts_close(p_cb,(tBTA_GATTS_DATA *) p_msg);
+            break;
+
+        case BTA_GATTS_API_RSP_EVT:
+            bta_gatts_send_rsp(p_cb,(tBTA_GATTS_DATA *) p_msg);
+            break;
+
+        case BTA_GATTS_API_LISTEN_EVT:
+            bta_gatts_listen(p_cb,(tBTA_GATTS_DATA *) p_msg);
+            break;
+
+
+        case BTA_GATTS_API_ADD_INCL_SRVC_EVT:
+        case BTA_GATTS_API_ADD_CHAR_EVT:
+        case BTA_GATTS_API_ADD_DESCR_EVT:
+        case BTA_GATTS_API_DEL_SRVC_EVT:
+        case BTA_GATTS_API_START_SRVC_EVT:
+        case BTA_GATTS_API_STOP_SRVC_EVT:
+
+            p_srvc_cb = bta_gatts_find_srvc_cb_by_srvc_id(p_cb,
+                                ((tBTA_GATTS_DATA *)p_msg)->api_add_incl_srvc.hdr.layer_specific);
+
+            if (p_srvc_cb != NULL)
+            {
+                bta_gatts_srvc_build_act[p_msg->event - BTA_GATTS_API_ADD_INCL_SRVC_EVT](p_srvc_cb, (tBTA_GATTS_DATA *) p_msg);
+            }
+            else
+            {
+                APPL_TRACE_ERROR("service not created");
+            }
+            break;
+
+        default:
+            break;
+    }
+
+
+    return (TRUE);
+}
+
+#endif /* BTA_GATT_INCLUDED */
diff --git a/rtkbt/code/bt/bta/gatt/bta_gatts_utils.c b/rtkbt/code/bt/bta/gatt/bta_gatts_utils.c
new file mode 100755
index 0000000..df8b140
--- /dev/null
+++ b/rtkbt/code/bt/bta/gatt/bta_gatts_utils.c
@@ -0,0 +1,234 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains the GATT client utility function.
+ *
+ ******************************************************************************/
+
+#include "bt_target.h"
+
+#if defined(BTA_GATT_INCLUDED) && (BTA_GATT_INCLUDED == TRUE)
+
+#include <string.h>
+#include "utl.h"
+#include "bt_common.h"
+#include "bta_sys.h"
+#include "bta_gatts_int.h"
+
+static const UINT8  base_uuid[LEN_UUID_128] = {0xFB, 0x34, 0x9B, 0x5F, 0x80, 0x00, 0x00, 0x80,
+    0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
+
+/*******************************************************************************
+**
+** Function         bta_gatt_convert_uuid16_to_uuid128
+**
+** Description      Convert a 16 bits UUID to be an standard 128 bits one.
+**
+** Returns          TRUE if two uuid match; FALSE otherwise.
+**
+*******************************************************************************/
+static void bta_gatt_convert_uuid16_to_uuid128(UINT8 uuid_128[LEN_UUID_128], UINT16 uuid_16)
+{
+    UINT8   *p = &uuid_128[LEN_UUID_128 - 4];
+
+    memcpy (uuid_128, base_uuid, LEN_UUID_128);
+
+    UINT16_TO_STREAM(p, uuid_16);
+}
+/*******************************************************************************
+**
+** Function         bta_gatts_alloc_srvc_cb
+**
+** Description      allocate a service control block.
+**
+** Returns          pointer to the control block, or otherwise NULL when failed.
+**
+*******************************************************************************/
+UINT8 bta_gatts_alloc_srvc_cb(tBTA_GATTS_CB *p_cb, UINT8 rcb_idx)
+{
+    UINT8 i;
+
+    for (i = 0; i < BTA_GATTS_MAX_SRVC_NUM; i ++)
+    {
+        if (!p_cb->srvc_cb[i].in_use)
+        {
+            p_cb->srvc_cb[i].in_use = TRUE;
+            p_cb->srvc_cb[i].rcb_idx = rcb_idx;
+            return i;
+        }
+    }
+    return BTA_GATTS_INVALID_APP;
+}
+
+/*******************************************************************************
+**
+** Function         bta_gatts_find_app_rcb_by_app_if
+**
+** Description      find the index of the application control block by app ID.
+**
+** Returns          pointer to the control block if success, otherwise NULL
+**
+*******************************************************************************/
+tBTA_GATTS_RCB *bta_gatts_find_app_rcb_by_app_if(tBTA_GATTS_IF server_if)
+{
+    UINT8 i;
+    tBTA_GATTS_RCB *p_reg;
+
+    for (i = 0, p_reg = bta_gatts_cb.rcb; i < BTA_GATTS_MAX_APP_NUM; i ++, p_reg++)
+    {
+        if (p_reg->in_use && p_reg->gatt_if == server_if)
+            return p_reg;
+    }
+    return NULL;
+}
+
+/*******************************************************************************
+**
+** Function         bta_gatts_find_app_rcb_idx_by_app_if
+**
+** Description      find the index of the application control block by app ID.
+**
+** Returns          index of the control block, or BTA_GATTS_INVALID_APP if failed.
+**
+*******************************************************************************/
+
+UINT8 bta_gatts_find_app_rcb_idx_by_app_if(tBTA_GATTS_CB *p_cb, tBTA_GATTS_IF server_if)
+{
+    UINT8 i;
+
+    for (i = 0; i < BTA_GATTS_MAX_APP_NUM; i ++)
+    {
+        if (p_cb->rcb[i].in_use && p_cb->rcb[i].gatt_if == server_if)
+            return i;
+    }
+    return BTA_GATTS_INVALID_APP;
+}
+/*******************************************************************************
+**
+** Function         bta_gatts_find_srvc_cb_by_srvc_id
+**
+** Description      find the service control block by service ID.
+**
+** Returns          pointer to the rcb.
+**
+*******************************************************************************/
+tBTA_GATTS_SRVC_CB * bta_gatts_find_srvc_cb_by_srvc_id(tBTA_GATTS_CB *p_cb, UINT16 service_id)
+{
+    UINT8 i;
+    APPL_TRACE_DEBUG("bta_gatts_find_srvc_cb_by_srvc_id  service_id=%d", service_id);
+    for (i = 0; i < BTA_GATTS_MAX_SRVC_NUM; i ++)
+    {
+        if (p_cb->srvc_cb[i].in_use &&
+            p_cb->srvc_cb[i].service_id == service_id)
+        {
+            APPL_TRACE_DEBUG("bta_gatts_find_srvc_cb_by_srvc_id  found service cb index =%d", i);
+            return &p_cb->srvc_cb[i];
+        }
+    }
+    return NULL;
+}
+/*******************************************************************************
+**
+** Function         bta_gatts_find_srvc_cb_by_attr_id
+**
+** Description      find the service control block by attribute ID.
+**
+** Returns          pointer to the rcb.
+**
+*******************************************************************************/
+tBTA_GATTS_SRVC_CB * bta_gatts_find_srvc_cb_by_attr_id(tBTA_GATTS_CB *p_cb, UINT16 attr_id)
+{
+    UINT8 i;
+
+    for (i = 0; i < (BTA_GATTS_MAX_SRVC_NUM); i ++)
+    {
+        if (/* middle service */
+            (i < (BTA_GATTS_MAX_SRVC_NUM - 1) &&
+             p_cb->srvc_cb[i].in_use &&
+             p_cb->srvc_cb[i + 1].in_use &&
+             attr_id >= p_cb->srvc_cb[i].service_id &&
+             attr_id < p_cb->srvc_cb[i + 1].service_id) ||
+            /* last active service */
+            (i < (BTA_GATTS_MAX_SRVC_NUM - 1) &&
+             p_cb->srvc_cb[i].in_use &&
+             !p_cb->srvc_cb[i + 1].in_use &&
+             attr_id >= p_cb->srvc_cb[i].service_id)    ||
+            /* last service incb */
+            (i == (BTA_GATTS_MAX_SRVC_NUM - 1) &&
+             attr_id >= p_cb->srvc_cb[i].service_id)
+           )
+        {
+            return &p_cb->srvc_cb[i];
+        }
+    }
+    return NULL;
+}
+/*******************************************************************************
+**
+** Function         bta_gatts_uuid_compare
+**
+** Description      Compare two UUID to see if they are the same.
+**
+** Returns          TRUE if two uuid match; FALSE otherwise.
+**
+*******************************************************************************/
+BOOLEAN bta_gatts_uuid_compare(tBT_UUID tar, tBT_UUID src)
+{
+    UINT8  su[LEN_UUID_128], tu[LEN_UUID_128];
+    UINT8  *ps, *pt;
+
+    /* any of the UUID is unspecified */
+    if (src.len == 0 || tar.len == 0)
+    {
+        return TRUE;
+    }
+
+    /* If both are 16-bit, we can do a simple compare */
+    if (src.len == 2 && tar.len == 2)
+    {
+        return src.uu.uuid16 == tar.uu.uuid16;
+    }
+
+    /* One or both of the UUIDs is 128-bit */
+    if (src.len == LEN_UUID_16)
+    {
+        /* convert a 16 bits UUID to 128 bits value */
+        bta_gatt_convert_uuid16_to_uuid128(su, src.uu.uuid16);
+        ps = su;
+    }
+    else
+        ps = src.uu.uuid128;
+
+    if (tar.len == LEN_UUID_16)
+    {
+        /* convert a 16 bits UUID to 128 bits value */
+        bta_gatt_convert_uuid16_to_uuid128(tu, tar.uu.uuid16);
+        pt = tu;
+    }
+    else
+        pt = tar.uu.uuid128;
+
+    return(memcmp(ps, pt, LEN_UUID_128) == 0);
+}
+
+
+
+
+#endif
diff --git a/rtkbt/code/bt/bta/hf_client/bta_hf_client_act.c b/rtkbt/code/bt/bta/hf_client/bta_hf_client_act.c
new file mode 100755
index 0000000..d41f298
--- /dev/null
+++ b/rtkbt/code/bt/bta/hf_client/bta_hf_client_act.c
@@ -0,0 +1,763 @@
+/******************************************************************************
+ *
+ *  Copyright (c) 2014 The Android Open Source Project
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains action functions for the handsfree client.
+ *
+ ******************************************************************************/
+
+#include "bta_api.h"
+#include "bta_hf_client_api.h"
+#include "bta_hf_client_int.h"
+#include "bta_dm_int.h"
+#include "l2c_api.h"
+#include "port_api.h"
+#include "bta_sys.h"
+#include "utl.h"
+#include "bt_utils.h"
+#include "osi/include/compat.h"
+#include <string.h>
+
+/*****************************************************************************
+**  Constants
+*****************************************************************************/
+
+/* maximum length of data to read from RFCOMM */
+#define BTA_HF_CLIENT_RFC_READ_MAX     512
+
+/*******************************************************************************
+**
+** Function         bta_hf_client_register
+**
+** Description      This function initializes values of the scb and sets up
+**                  the SDP record for the services.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hf_client_register(tBTA_HF_CLIENT_DATA *p_data)
+{
+    tBTA_HF_CLIENT evt;
+    tBTA_UTL_COD   cod;
+
+    memset(&evt, 0, sizeof(evt));
+
+    /* initialize control block */
+    bta_hf_client_scb_init();
+
+    bta_hf_client_cb.scb.serv_sec_mask = p_data->api_register.sec_mask;
+    bta_hf_client_cb.scb.features = p_data->api_register.features;
+
+    /* initialize AT control block */
+    bta_hf_client_at_init();
+
+    /* create SDP records */
+    bta_hf_client_create_record(p_data);
+
+    /* Set the Audio service class bit */
+    cod.service = BTM_COD_SERVICE_AUDIO;
+    utl_set_device_class(&cod, BTA_UTL_SET_COD_SERVICE_CLASS);
+
+    /* start RFCOMM server */
+    bta_hf_client_start_server();
+
+    /* call app callback with register event */
+    evt.reg.status = BTA_HF_CLIENT_SUCCESS;
+    (*bta_hf_client_cb.p_cback)(BTA_HF_CLIENT_REGISTER_EVT, &evt);
+}
+
+/*******************************************************************************
+**
+** Function         bta_hf_client_deregister
+**
+** Description      This function removes the sdp records, closes the RFCOMM
+**                  servers, and deallocates the service control block.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hf_client_deregister(tBTA_HF_CLIENT_DATA *p_data)
+{
+    bta_hf_client_cb.scb.deregister = TRUE;
+
+    /* remove sdp record */
+    bta_hf_client_del_record(p_data);
+
+    /* remove rfcomm server */
+    bta_hf_client_close_server();
+
+    /* disable */
+    bta_hf_client_scb_disable();
+}
+
+/*******************************************************************************
+**
+** Function         bta_hf_client_start_dereg
+**
+** Description      Start a deregister event.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hf_client_start_dereg(tBTA_HF_CLIENT_DATA *p_data)
+{
+    bta_hf_client_cb.scb.deregister = TRUE;
+
+    /* remove sdp record */
+    bta_hf_client_del_record(p_data);
+}
+
+/*******************************************************************************
+**
+** Function         bta_hf_client_start_close
+**
+** Description      Start the process of closing SCO and RFCOMM connection.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hf_client_start_close(tBTA_HF_CLIENT_DATA *p_data)
+{
+    /* Take the link out of sniff and set L2C idle time to 0 */
+    bta_dm_pm_active(bta_hf_client_cb.scb.peer_addr);
+    L2CA_SetIdleTimeoutByBdAddr(bta_hf_client_cb.scb.peer_addr, 0, BT_TRANSPORT_BR_EDR);
+
+    /* if SCO is open close SCO and wait on RFCOMM close */
+    if (bta_hf_client_cb.scb.sco_state == BTA_HF_CLIENT_SCO_OPEN_ST)
+    {
+        bta_hf_client_cb.scb.sco_close_rfc = TRUE;
+    }
+    else
+    {
+        bta_hf_client_rfc_do_close(p_data);
+    }
+
+    /* always do SCO shutdown to handle all SCO corner cases */
+    bta_hf_client_sco_shutdown(NULL);
+}
+
+/*******************************************************************************
+**
+** Function         bta_hf_client_start_open
+**
+** Description      This starts an HF Client open.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hf_client_start_open(tBTA_HF_CLIENT_DATA *p_data)
+{
+    BD_ADDR pending_bd_addr;
+
+    /* store parameters */
+    if (p_data)
+    {
+        bdcpy(bta_hf_client_cb.scb.peer_addr, p_data->api_open.bd_addr);
+        bta_hf_client_cb.scb.cli_sec_mask = p_data->api_open.sec_mask;
+    }
+
+    /* Check if RFCOMM has any incoming connection to avoid collision. */
+    if (PORT_IsOpening (pending_bd_addr))
+    {
+        /* Let the incoming connection goes through.                        */
+        /* Issue collision for now.                                         */
+        /* We will decide what to do when we find incoming connection later.*/
+        bta_hf_client_collision_cback (0, BTA_ID_HS, 0, bta_hf_client_cb.scb.peer_addr);
+        return;
+    }
+
+    /* close server */
+    bta_hf_client_close_server();
+
+    /* set role */
+    bta_hf_client_cb.scb.role = BTA_HF_CLIENT_INT;
+
+    /* do service search */
+    bta_hf_client_do_disc();
+}
+
+/*******************************************************************************
+**
+** Function         bta_hf_client_cback_open
+**
+** Description      Send open callback event to application.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_hf_client_cback_open(tBTA_HF_CLIENT_DATA *p_data, tBTA_HF_CLIENT_STATUS status)
+{
+    tBTA_HF_CLIENT evt;
+
+    memset(&evt, 0, sizeof(evt));
+
+    /* call app callback with open event */
+    evt.open.status = status;
+    if(p_data)
+    {
+        /* if p_data is provided then we need to pick the bd address from the open api structure */
+        bdcpy(evt.open.bd_addr, p_data->api_open.bd_addr);
+    }
+    else
+    {
+        bdcpy(evt.open.bd_addr, bta_hf_client_cb.scb.peer_addr);
+    }
+
+    (*bta_hf_client_cb.p_cback)(BTA_HF_CLIENT_OPEN_EVT, &evt);
+}
+
+/*******************************************************************************
+**
+** Function         bta_hf_client_rfc_open
+**
+** Description      Handle RFCOMM channel open.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hf_client_rfc_open(tBTA_HF_CLIENT_DATA *p_data)
+{
+    UNUSED(p_data);
+
+    bta_sys_conn_open(BTA_ID_HS, 1, bta_hf_client_cb.scb.peer_addr);
+
+    bta_hf_client_cback_open(NULL, BTA_HF_CLIENT_SUCCESS);
+
+    /* start SLC procedure */
+    bta_hf_client_slc_seq(FALSE);
+}
+
+/*******************************************************************************
+**
+** Function         bta_hf_client_rfc_acp_open
+**
+** Description      Handle RFCOMM channel open when accepting connection.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hf_client_rfc_acp_open(tBTA_HF_CLIENT_DATA *p_data)
+{
+    UINT16          lcid;
+    BD_ADDR         dev_addr;
+    int             status;
+
+    /* set role */
+    bta_hf_client_cb.scb.role = BTA_HF_CLIENT_ACP;
+
+    APPL_TRACE_DEBUG ("bta_hf_client_rfc_acp_open: serv_handle = %d rfc.port_handle = %d",
+            bta_hf_client_cb.scb.serv_handle, p_data->rfc.port_handle);
+
+    /* get bd addr of peer */
+    if (PORT_SUCCESS != (status=PORT_CheckConnection(p_data->rfc.port_handle, dev_addr, &lcid)))
+    {
+        APPL_TRACE_DEBUG ("bta_hf_client_rfc_acp_open error PORT_CheckConnection returned status %d", status);
+    }
+
+    /* Collision Handling */
+    if (alarm_is_scheduled(bta_hf_client_cb.scb.collision_timer)) {
+        alarm_cancel(bta_hf_client_cb.scb.collision_timer);
+
+        if (bdcmp (dev_addr, bta_hf_client_cb.scb.peer_addr) == 0)
+        {
+            /* If incoming and outgoing device are same, nothing more to do.            */
+            /* Outgoing conn will be aborted because we have successful incoming conn.  */
+        }
+        else
+        {
+            /* Resume outgoing connection. */
+            bta_hf_client_resume_open ();
+        }
+    }
+
+    bdcpy (bta_hf_client_cb.scb.peer_addr, dev_addr);
+    bta_hf_client_cb.scb.conn_handle = p_data->rfc.port_handle;
+
+    /* do service discovery to get features */
+    bta_hf_client_do_disc();
+
+    /* continue with open processing */
+    bta_hf_client_rfc_open(p_data);
+}
+
+/*******************************************************************************
+**
+** Function         bta_hf_client_rfc_fail
+**
+** Description      RFCOMM connection failed.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hf_client_rfc_fail(tBTA_HF_CLIENT_DATA *p_data)
+{
+    UNUSED(p_data);
+
+    /* reinitialize stuff */
+    bta_hf_client_cb.scb.conn_handle = 0;
+    bta_hf_client_cb.scb.peer_features = 0;
+    bta_hf_client_cb.scb.chld_features = 0;
+    bta_hf_client_cb.scb.role = BTA_HF_CLIENT_ACP;
+    bta_hf_client_cb.scb.svc_conn = FALSE;
+    bta_hf_client_cb.scb.send_at_reply = FALSE;
+    bta_hf_client_cb.scb.negotiated_codec = BTM_SCO_CODEC_CVSD;
+
+    bta_hf_client_at_reset();
+
+    /* reopen server */
+    bta_hf_client_start_server();
+
+    /* call open cback w. failure */
+    bta_hf_client_cback_open(NULL, BTA_HF_CLIENT_FAIL_RFCOMM);
+}
+
+/*******************************************************************************
+**
+** Function         bta_hf_client_disc_fail
+**
+** Description      This function handles a discovery failure.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hf_client_disc_fail(tBTA_HF_CLIENT_DATA *p_data)
+{
+    UNUSED(p_data);
+
+    /* reopen server */
+    bta_hf_client_start_server();
+
+    /* reinitialize stuff */
+
+    /* call open cback w. failure */
+    bta_hf_client_cback_open(NULL, BTA_HF_CLIENT_FAIL_SDP);
+}
+
+/*******************************************************************************
+**
+** Function         bta_hf_client_open_fail
+**
+** Description      open connection failed.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hf_client_open_fail(tBTA_HF_CLIENT_DATA *p_data)
+{
+    /* call open cback w. failure */
+    bta_hf_client_cback_open(p_data, BTA_HF_CLIENT_FAIL_RESOURCES);
+}
+
+/*******************************************************************************
+**
+** Function         bta_hf_client_rfc_close
+**
+** Description      RFCOMM connection closed.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hf_client_rfc_close(tBTA_HF_CLIENT_DATA *p_data)
+{
+    UNUSED(p_data);
+
+    /* reinitialize stuff */
+    bta_hf_client_cb.scb.peer_features = 0;
+    bta_hf_client_cb.scb.chld_features = 0;
+    bta_hf_client_cb.scb.role = BTA_HF_CLIENT_ACP;
+    bta_hf_client_cb.scb.svc_conn = FALSE;
+    bta_hf_client_cb.scb.send_at_reply = FALSE;
+    bta_hf_client_cb.scb.negotiated_codec = BTM_SCO_CODEC_CVSD;
+
+    bta_hf_client_at_reset();
+
+    bta_sys_conn_close(BTA_ID_HS, 1, bta_hf_client_cb.scb.peer_addr);
+
+    /* call close cback */
+    (*bta_hf_client_cb.p_cback)(BTA_HF_CLIENT_CLOSE_EVT, NULL);
+
+    /* if not deregistering reopen server */
+    if (bta_hf_client_cb.scb.deregister == FALSE)
+    {
+        /* Clear peer bd_addr so instance can be reused */
+        bdcpy(bta_hf_client_cb.scb.peer_addr, bd_addr_null);
+
+        /* start server as it might got closed on open*/
+        bta_hf_client_start_server();
+
+        bta_hf_client_cb.scb.conn_handle = 0;
+
+        /* Make sure SCO is shutdown */
+        bta_hf_client_sco_shutdown(NULL);
+
+        bta_sys_sco_unuse(BTA_ID_HS, 1, bta_hf_client_cb.scb.peer_addr);
+    }
+    /* else close port and deallocate scb */
+    else
+    {
+        bta_hf_client_close_server();
+        bta_hf_client_scb_disable();
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_hf_client_disc_int_res
+**
+** Description      This function handles a discovery result when initiator.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hf_client_disc_int_res(tBTA_HF_CLIENT_DATA *p_data)
+{
+    UINT16 event = BTA_HF_CLIENT_DISC_FAIL_EVT;
+
+    APPL_TRACE_DEBUG ("bta_hf_client_disc_int_res: Status: %d", p_data->disc_result.status);
+
+    /* if found service */
+    if (p_data->disc_result.status == SDP_SUCCESS ||
+        p_data->disc_result.status == SDP_DB_FULL)
+    {
+        /* get attributes */
+        if (bta_hf_client_sdp_find_attr())
+        {
+            event = BTA_HF_CLIENT_DISC_OK_EVT;
+        }
+    }
+
+    /* free discovery db */
+    bta_hf_client_free_db(p_data);
+
+    /* send ourselves sdp ok/fail event */
+    bta_hf_client_sm_execute(event, p_data);
+}
+
+/*******************************************************************************
+**
+** Function         bta_hf_client_disc_acp_res
+**
+** Description      This function handles a discovery result when acceptor.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hf_client_disc_acp_res(tBTA_HF_CLIENT_DATA *p_data)
+{
+    /* if found service */
+    if (p_data->disc_result.status == SDP_SUCCESS ||
+        p_data->disc_result.status == SDP_DB_FULL)
+    {
+        /* get attributes */
+        bta_hf_client_sdp_find_attr();
+    }
+
+    /* free discovery db */
+    bta_hf_client_free_db(p_data);
+}
+
+/*******************************************************************************
+**
+** Function         bta_hf_client_rfc_data
+**
+** Description      Read and process data from RFCOMM.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hf_client_rfc_data(tBTA_HF_CLIENT_DATA *p_data)
+{
+    UINT16  len;
+    char    buf[BTA_HF_CLIENT_RFC_READ_MAX];
+    UNUSED(p_data);
+
+    memset(buf, 0, sizeof(buf));
+
+    /* read data from rfcomm; if bad status, we're done */
+    while (PORT_ReadData(bta_hf_client_cb.scb.conn_handle, buf, BTA_HF_CLIENT_RFC_READ_MAX, &len) == PORT_SUCCESS)
+    {
+        /* if no data, we're done */
+        if (len == 0)
+        {
+            break;
+        }
+
+        bta_hf_client_at_parse(buf, len);
+
+        /* no more data to read, we're done */
+        if (len < BTA_HF_CLIENT_RFC_READ_MAX)
+        {
+            break;
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_hf_client_svc_conn_open
+**
+** Description      Service level connection opened
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hf_client_svc_conn_open(tBTA_HF_CLIENT_DATA *p_data)
+{
+    tBTA_HF_CLIENT evt;
+    UNUSED(p_data);
+
+    memset(&evt, 0, sizeof(evt));
+
+    if (!bta_hf_client_cb.scb.svc_conn)
+    {
+        /* set state variable */
+        bta_hf_client_cb.scb.svc_conn = TRUE;
+
+        /* call callback */
+        evt.conn.peer_feat = bta_hf_client_cb.scb.peer_features;
+        evt.conn.chld_feat = bta_hf_client_cb.scb.chld_features;
+
+        (*bta_hf_client_cb.p_cback)(BTA_HF_CLIENT_CONN_EVT, &evt);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_hf_client_cback_ind
+**
+** Description      Send indicator callback event to application.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hf_client_ind(tBTA_HF_CLIENT_IND_TYPE type, UINT16 value)
+{
+    tBTA_HF_CLIENT evt;
+
+    memset(&evt, 0, sizeof(evt));
+
+    evt.ind.type = type;
+    evt.ind.value = value;
+
+    (*bta_hf_client_cb.p_cback)(BTA_HF_CLIENT_IND_EVT, &evt);
+}
+
+/*******************************************************************************
+**
+** Function         bta_hf_client_evt_val
+**
+** Description      Send event to application.
+**                  This is a generic helper for events with common data.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hf_client_evt_val(tBTA_HF_CLIENT_EVT type, UINT16 value)
+{
+    tBTA_HF_CLIENT evt;
+
+    memset(&evt, 0, sizeof(evt));
+
+    evt.val.value = value;
+
+    (*bta_hf_client_cb.p_cback)(type, &evt);
+}
+
+/*******************************************************************************
+**
+** Function         bta_hf_client_operator_name
+**
+** Description      Send operator name event to application.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hf_client_operator_name(char *name)
+{
+    tBTA_HF_CLIENT evt;
+
+    memset(&evt, 0, sizeof(evt));
+
+    strlcpy(evt.operator.name, name, BTA_HF_CLIENT_OPERATOR_NAME_LEN + 1);
+    evt.operator.name[BTA_HF_CLIENT_OPERATOR_NAME_LEN] = '\0';
+
+    (*bta_hf_client_cb.p_cback)(BTA_HF_CLIENT_OPERATOR_NAME_EVT, &evt);
+}
+
+
+/*******************************************************************************
+**
+** Function         bta_hf_client_clip
+**
+** Description      Send CLIP event to application.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hf_client_clip(char *number)
+{
+    tBTA_HF_CLIENT evt;
+
+    memset(&evt, 0, sizeof(evt));
+
+    strlcpy(evt.number.number, number, BTA_HF_CLIENT_NUMBER_LEN + 1);
+    evt.number.number[BTA_HF_CLIENT_NUMBER_LEN] = '\0';
+
+    (*bta_hf_client_cb.p_cback)(BTA_HF_CLIENT_CLIP_EVT, &evt);
+}
+
+/*******************************************************************************
+**
+** Function         bta_hf_client_ccwa
+**
+** Description      Send CLIP event to application.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hf_client_ccwa(char *number)
+{
+    tBTA_HF_CLIENT evt;
+
+    memset(&evt, 0, sizeof(evt));
+
+    strlcpy(evt.number.number, number, BTA_HF_CLIENT_NUMBER_LEN + 1);
+    evt.number.number[BTA_HF_CLIENT_NUMBER_LEN] = '\0';
+
+    (*bta_hf_client_cb.p_cback)(BTA_HF_CLIENT_CCWA_EVT, &evt);
+}
+
+/*******************************************************************************
+**
+** Function         bta_hf_client_at_result
+**
+** Description      Send AT result event to application.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hf_client_at_result(tBTA_HF_CLIENT_AT_RESULT_TYPE type, UINT16 cme)
+{
+    tBTA_HF_CLIENT evt;
+
+    memset(&evt, 0, sizeof(evt));
+
+    evt.result.type = type;
+    evt.result.cme = cme;
+
+    (*bta_hf_client_cb.p_cback)(BTA_HF_CLIENT_AT_RESULT_EVT, &evt);
+}
+
+/*******************************************************************************
+**
+** Function         bta_hf_client_clcc
+**
+** Description      Send clcc event to application.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hf_client_clcc(UINT32 idx, BOOLEAN incoming, UINT8 status, BOOLEAN mpty, char *number)
+{
+    tBTA_HF_CLIENT evt;
+
+    memset(&evt, 0, sizeof(evt));
+
+    evt.clcc.idx = idx;
+    evt.clcc.inc = incoming;
+    evt.clcc.status = status;
+    evt.clcc.mpty = mpty;
+
+    if (number)
+    {
+        evt.clcc.number_present = TRUE;
+        strlcpy(evt.clcc.number, number, BTA_HF_CLIENT_NUMBER_LEN + 1);
+        evt.clcc.number[BTA_HF_CLIENT_NUMBER_LEN] = '\0';
+    }
+
+    (*bta_hf_client_cb.p_cback)(BTA_HF_CLIENT_CLCC_EVT, &evt);
+}
+
+/*******************************************************************************
+**
+** Function         bta_hf_client_cnum
+**
+** Description      Send cnum event to application.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hf_client_cnum(char *number, UINT16 service)
+{
+    tBTA_HF_CLIENT evt;
+
+    memset(&evt, 0, sizeof(evt));
+
+    evt.cnum.service = service;
+    strlcpy(evt.cnum.number, number, BTA_HF_CLIENT_NUMBER_LEN + 1);
+    evt.cnum.number[BTA_HF_CLIENT_NUMBER_LEN] = '\0';
+
+    (*bta_hf_client_cb.p_cback)(BTA_HF_CLIENT_CNUM_EVT, &evt);
+}
+
+/*******************************************************************************
+**
+** Function         bta_hf_client_binp
+**
+** Description      Send BINP event to application.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hf_client_binp(char *number)
+{
+    tBTA_HF_CLIENT evt;
+
+    memset(&evt, 0, sizeof(evt));
+
+    strlcpy(evt.number.number, number, BTA_HF_CLIENT_NUMBER_LEN + 1);
+    evt.number.number[BTA_HF_CLIENT_NUMBER_LEN] = '\0';
+
+    (*bta_hf_client_cb.p_cback)(BTA_HF_CLIENT_BINP_EVT, &evt);
+}
diff --git a/rtkbt/code/bt/bta/hf_client/bta_hf_client_api.c b/rtkbt/code/bt/bta/hf_client/bta_hf_client_api.c
new file mode 100755
index 0000000..3fc8b4b
--- /dev/null
+++ b/rtkbt/code/bt/bta/hf_client/bta_hf_client_api.c
@@ -0,0 +1,265 @@
+/******************************************************************************
+ *
+ *  Copyright (c) 2014 The Android Open Source Project
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the implementation of the API for the handsfree (HF role)
+ *  subsystem of BTA
+ *
+ ******************************************************************************/
+
+#include <string.h>
+#include "bta_hf_client_api.h"
+#include "bta_hf_client_int.h"
+#include "osi/include/compat.h"
+
+/*****************************************************************************
+**  Constants and data types
+*****************************************************************************/
+static const tBTA_SYS_REG bta_hf_client_reg =
+{
+    bta_hf_client_hdl_event,
+    BTA_HfClientDisable
+};
+
+
+/*****************************************************************************
+**  External Function Declarations
+*****************************************************************************/
+
+/*******************************************************************************
+**
+** Function         BTA_HfClientEnable
+**
+** Description      Enable the HF CLient service. When the enable
+**                  operation is complete the callback function will be
+**                  called with a BTA_HF_CLIENT_ENABLE_EVT. This function must
+**                  be called before other function in the HF CLient API are
+**                  called.
+**
+** Returns          BTA_SUCCESS if OK, BTA_FAILURE otherwise.
+**
+*******************************************************************************/
+tBTA_STATUS BTA_HfClientEnable(tBTA_HF_CLIENT_CBACK *p_cback)
+{
+    if (bta_sys_is_register (BTA_ID_HS))
+    {
+        APPL_TRACE_ERROR("BTA HF Client is already enabled, ignoring ...");
+        return BTA_FAILURE;
+    }
+
+    /* register with BTA system manager */
+    bta_sys_register(BTA_ID_HS, &bta_hf_client_reg);
+
+    tBTA_HF_CLIENT_API_ENABLE *p_buf =
+        (tBTA_HF_CLIENT_API_ENABLE *)osi_malloc(sizeof(tBTA_HF_CLIENT_API_ENABLE));
+    p_buf->hdr.event = BTA_HF_CLIENT_API_ENABLE_EVT;
+    p_buf->p_cback = p_cback;
+
+    bta_sys_sendmsg(p_buf);
+
+    return BTA_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         BTA_HfClientDisable
+**
+** Description      Disable the HF Client service
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_HfClientDisable(void)
+{
+    BT_HDR *p_buf = (BT_HDR *)osi_malloc(sizeof(BT_HDR));
+
+    p_buf->event = BTA_HF_CLIENT_API_DISABLE_EVT;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_HfClientRegister
+**
+** Description      Register an HF Client service.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_HfClientRegister(tBTA_SEC sec_mask, tBTA_HF_CLIENT_FEAT features,
+                          char *p_service_name)
+{
+    tBTA_HF_CLIENT_API_REGISTER *p_buf =
+        (tBTA_HF_CLIENT_API_REGISTER *)osi_malloc(sizeof(tBTA_HF_CLIENT_API_REGISTER));
+
+    p_buf->hdr.event = BTA_HF_CLIENT_API_REGISTER_EVT;
+    p_buf->features = features;
+    p_buf->sec_mask = sec_mask;
+    if (p_service_name)
+        strlcpy(p_buf->name, p_service_name, BTA_SERVICE_NAME_LEN);
+    else
+        p_buf->name[0] = 0;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_HfClientDeregister
+**
+** Description      Deregister an HF Client service.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_HfClientDeregister(UINT16 handle)
+{
+    BT_HDR *p_buf = (BT_HDR *)osi_malloc(sizeof(BT_HDR));
+
+    p_buf->event = BTA_HF_CLIENT_API_DEREGISTER_EVT;
+    p_buf->layer_specific = handle;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_HfClientOpen
+**
+** Description      Opens a connection to an audio gateway.
+**                  When connection is open callback function is called
+**                  with a BTA_AG_OPEN_EVT. Only the data connection is
+**                  opened. The audio connection is not opened.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_HfClientOpen(UINT16 handle, BD_ADDR bd_addr, tBTA_SEC sec_mask)
+{
+    tBTA_HF_CLIENT_API_OPEN *p_buf =
+        (tBTA_HF_CLIENT_API_OPEN *)osi_malloc(sizeof(tBTA_HF_CLIENT_API_OPEN));
+
+    p_buf->hdr.event = BTA_HF_CLIENT_API_OPEN_EVT;
+    p_buf->hdr.layer_specific = handle;
+    bdcpy(p_buf->bd_addr, bd_addr);
+    p_buf->sec_mask = sec_mask;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_HfClientClose
+**
+** Description      Close the current connection to an audio gateway.
+**                  Any current audio connection will also be closed
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_HfClientClose(UINT16 handle)
+{
+    BT_HDR *p_buf = (BT_HDR *)osi_malloc(sizeof(BT_HDR));
+
+    p_buf->event = BTA_HF_CLIENT_API_CLOSE_EVT;
+    p_buf->layer_specific = handle;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_HfCllientAudioOpen
+**
+** Description      Opens an audio connection to the currently connected
+**                 audio gateway
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_HfClientAudioOpen(UINT16 handle)
+{
+    BT_HDR *p_buf = (BT_HDR *)osi_malloc(sizeof(BT_HDR));
+
+    p_buf->event = BTA_HF_CLIENT_API_AUDIO_OPEN_EVT;
+    p_buf->layer_specific = handle;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_HfClientAudioClose
+**
+** Description      Close the currently active audio connection to an audio
+**                  gateway. The data connection remains open
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_HfClientAudioClose(UINT16 handle)
+{
+    BT_HDR *p_buf = (BT_HDR *)osi_malloc(sizeof(BT_HDR));
+
+    p_buf->event = BTA_HF_CLIENT_API_AUDIO_CLOSE_EVT;
+    p_buf->layer_specific = handle;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_HfClientSendAT
+**
+** Description      send AT command
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_HfClientSendAT(UINT16 handle, tBTA_HF_CLIENT_AT_CMD_TYPE at, UINT32 val1, UINT32 val2, const char *str)
+{
+    tBTA_HF_CLIENT_DATA_VAL *p_buf =
+        (tBTA_HF_CLIENT_DATA_VAL *)osi_malloc(sizeof(tBTA_HF_CLIENT_DATA_VAL));
+
+    p_buf->hdr.event = BTA_HF_CLIENT_SEND_AT_CMD_EVT;
+    p_buf->uint8_val = at;
+    p_buf->uint32_val1 = val1;
+    p_buf->uint32_val2 = val2;
+
+    if (str) {
+        strlcpy(p_buf->str, str, BTA_HF_CLIENT_NUMBER_LEN + 1);
+        p_buf->str[BTA_HF_CLIENT_NUMBER_LEN] = '\0';
+    } else {
+        p_buf->str[0] = '\0';
+    }
+
+    p_buf->hdr.layer_specific = handle;
+
+    bta_sys_sendmsg(p_buf);
+}
diff --git a/rtkbt/code/bt/bta/hf_client/bta_hf_client_at.c b/rtkbt/code/bt/bta/hf_client/bta_hf_client_at.c
new file mode 100755
index 0000000..b273f2f
--- /dev/null
+++ b/rtkbt/code/bt/bta/hf_client/bta_hf_client_at.c
@@ -0,0 +1,1956 @@
+/******************************************************************************
+ *
+ *  Copyright (c) 2014 The Android Open Source Project
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_hf_client"
+
+#include <errno.h>
+#include <string.h>
+#include <stdio.h>
+
+#include "osi/include/osi.h"
+#include "bta_hf_client_api.h"
+#include "bta_hf_client_int.h"
+#include "osi/include/log.h"
+#include "port_api.h"
+
+/* Uncomment to enable AT traffic dumping */
+/* #define BTA_HF_CLIENT_AT_DUMP 1 */
+
+/* minimum length of AT event */
+#define BTA_HF_CLIENT_AT_EVENT_MIN_LEN 3
+
+/* timeout (in milliseconds) for AT response */
+#define BTA_HF_CLIENT_AT_TIMEOUT 29989
+
+/* timeout (in milliseconds) for AT hold timer */
+#define BTA_HF_CLIENT_AT_HOLD_TIMEOUT 41
+
+/******************************************************************************
+**
+**          DATA TYPES AND CONTAINERS
+**
+*******************************************************************************/
+/* BRSF: store received values here */
+extern tBTA_HF_CLIENT_CB  bta_hf_client_cb;
+
+extern fixed_queue_t *btu_bta_alarm_queue;
+
+/******************************************************************************
+**       SUPPORTED EVENT MESSAGES
+*******************************************************************************/
+
+/* CIND: supported indicator names */
+#define BTA_HF_CLIENT_INDICATOR_BATTERYCHG  "battchg"
+#define BTA_HF_CLIENT_INDICATOR_SIGNAL      "signal"
+#define BTA_HF_CLIENT_INDICATOR_SERVICE     "service"
+#define BTA_HF_CLIENT_INDICATOR_CALL        "call"
+#define BTA_HF_CLIENT_INDICATOR_ROAM        "roam"
+#define BTA_HF_CLIENT_INDICATOR_CALLSETUP   "callsetup"
+#define BTA_HF_CLIENT_INDICATOR_CALLHELD    "callheld"
+
+#define MIN(a, b) \
+    ({ __typeof__(a) _a = (a); __typeof__(b) _b = (b); (_a < _b) ? _a : _b; })
+
+/* CIND: represents each indicators boundaries */
+typedef struct
+{
+    char* name;
+    UINT8 min;
+    UINT8 max;
+    UINT8 namelen;
+} tBTA_HF_CLIENT_INDICATOR;
+
+#define BTA_HF_CLIENT_AT_SUPPORTED_INDICATOR_COUNT 7
+
+/* CIND: storage room for indicators value range and their statuses */
+static const tBTA_HF_CLIENT_INDICATOR bta_hf_client_indicators[BTA_HF_CLIENT_AT_SUPPORTED_INDICATOR_COUNT] =
+{
+    /* name                                | min | max | name length - used by parser */
+     {BTA_HF_CLIENT_INDICATOR_BATTERYCHG,     0,   5,    sizeof(BTA_HF_CLIENT_INDICATOR_BATTERYCHG)},
+     {BTA_HF_CLIENT_INDICATOR_SIGNAL,         0,   5,    sizeof(BTA_HF_CLIENT_INDICATOR_SIGNAL)},
+     {BTA_HF_CLIENT_INDICATOR_SERVICE,        0,   1,    sizeof(BTA_HF_CLIENT_INDICATOR_SERVICE)},
+     {BTA_HF_CLIENT_INDICATOR_CALL,           0,   1,    sizeof(BTA_HF_CLIENT_INDICATOR_CALL)},
+     {BTA_HF_CLIENT_INDICATOR_ROAM,           0,   1,    sizeof(BTA_HF_CLIENT_INDICATOR_ROAM)},
+     {BTA_HF_CLIENT_INDICATOR_CALLSETUP,      0,   3,    sizeof(BTA_HF_CLIENT_INDICATOR_CALLSETUP)},
+     {BTA_HF_CLIENT_INDICATOR_CALLHELD,       0,   2,    sizeof(BTA_HF_CLIENT_INDICATOR_CALLHELD)}
+};
+
+/* +VGM/+VGS - gain min/max values  */
+#define BTA_HF_CLIENT_VGS_MIN   0
+#define BTA_HF_CLIENT_VGS_MAX  15
+#define BTA_HF_CLIENT_VGM_MIN   0
+#define BTA_HF_CLIENT_VGM_MAX  15
+
+UINT32 service_index = 0;
+BOOLEAN service_availability = TRUE;
+/* helper functions for handling AT commands queueing */
+
+static void bta_hf_client_handle_ok();
+
+static void bta_hf_client_clear_queued_at(void)
+{
+    tBTA_HF_CLIENT_AT_QCMD *cur = bta_hf_client_cb.scb.at_cb.queued_cmd;
+    tBTA_HF_CLIENT_AT_QCMD *next;
+
+    while (cur != NULL) {
+        next = cur->next;
+        osi_free(cur);
+        cur = next;
+    }
+
+    bta_hf_client_cb.scb.at_cb.queued_cmd = NULL;
+}
+
+static void bta_hf_client_queue_at(tBTA_HF_CLIENT_AT_CMD cmd, const char *buf, UINT16 buf_len)
+{
+    tBTA_HF_CLIENT_AT_QCMD *new_cmd =
+        (tBTA_HF_CLIENT_AT_QCMD *)osi_malloc(sizeof(tBTA_HF_CLIENT_AT_QCMD));
+
+    APPL_TRACE_DEBUG("%s", __func__);
+
+    new_cmd->cmd = cmd;
+    new_cmd->buf_len = buf_len;
+    new_cmd->next = NULL;
+    memcpy(new_cmd->buf, buf, buf_len);
+
+    if (bta_hf_client_cb.scb.at_cb.queued_cmd != NULL) {
+        tBTA_HF_CLIENT_AT_QCMD *qcmd = bta_hf_client_cb.scb.at_cb.queued_cmd;
+
+        while (qcmd->next != NULL)
+            qcmd = qcmd->next;
+
+        qcmd->next = new_cmd;
+    } else {
+        bta_hf_client_cb.scb.at_cb.queued_cmd = new_cmd;
+    }
+}
+
+static void bta_hf_client_at_resp_timer_cback(UNUSED_ATTR void *data)
+{
+  if (bta_hf_client_cb.scb.at_cb.current_cmd == BTA_HF_CLIENT_AT_CNUM) {
+    LOG_INFO(LOG_TAG, "%s timed out waiting for AT+CNUM response; spoofing OK.", __func__);
+    bta_hf_client_handle_ok();
+  } else {
+    APPL_TRACE_ERROR("HFPClient: AT response timeout, disconnecting");
+    bta_hf_client_sm_execute(BTA_HF_CLIENT_API_CLOSE_EVT, NULL);
+  }
+}
+
+static void bta_hf_client_start_at_resp_timer(void)
+{
+    alarm_set_on_queue(bta_hf_client_cb.scb.at_cb.resp_timer,
+                       BTA_HF_CLIENT_AT_TIMEOUT,
+                       bta_hf_client_at_resp_timer_cback,
+                       NULL,
+                       btu_bta_alarm_queue);
+}
+
+static void bta_hf_client_stop_at_resp_timer(void)
+{
+    alarm_cancel(bta_hf_client_cb.scb.at_cb.resp_timer);
+}
+
+static void bta_hf_client_send_at(tBTA_HF_CLIENT_AT_CMD cmd, char *buf, UINT16 buf_len)
+{
+    if ((bta_hf_client_cb.scb.at_cb.current_cmd == BTA_HF_CLIENT_AT_NONE ||
+            bta_hf_client_cb.scb.svc_conn == FALSE) &&
+            !alarm_is_scheduled(bta_hf_client_cb.scb.at_cb.hold_timer))
+    {
+        UINT16  len;
+
+#ifdef BTA_HF_CLIENT_AT_DUMP
+        APPL_TRACE_DEBUG("%s %.*s", __FUNCTION__, buf_len - 1, buf);
+#endif
+
+        bta_hf_client_cb.scb.at_cb.current_cmd = cmd;
+        /* Generate fake responses for these because they won't reliably work */
+        if (!service_availability &&
+                (cmd == BTA_HF_CLIENT_AT_CNUM || cmd == BTA_HF_CLIENT_AT_COPS))
+        {
+            APPL_TRACE_WARNING("%s: No service, skipping %d command", __FUNCTION__, cmd);
+            bta_hf_client_handle_ok();
+            return;
+        }
+
+        PORT_WriteData(bta_hf_client_cb.scb.conn_handle, buf, buf_len, &len);
+
+        bta_hf_client_start_at_resp_timer();
+
+        return;
+    }
+
+    bta_hf_client_queue_at(cmd, buf, buf_len);
+}
+
+static void bta_hf_client_send_queued_at(void)
+{
+    tBTA_HF_CLIENT_AT_QCMD *cur = bta_hf_client_cb.scb.at_cb.queued_cmd;
+
+    APPL_TRACE_DEBUG("%s", __FUNCTION__);
+
+    if (cur != NULL)
+    {
+        bta_hf_client_cb.scb.at_cb.queued_cmd = cur->next;
+
+        bta_hf_client_send_at(cur->cmd, cur->buf, cur->buf_len);
+
+        osi_free(cur);
+    }
+}
+
+static void bta_hf_client_at_hold_timer_cback(UNUSED_ATTR void *data)
+{
+    APPL_TRACE_DEBUG("%s", __FUNCTION__);
+    bta_hf_client_send_queued_at();
+}
+
+static void bta_hf_client_stop_at_hold_timer(void)
+{
+    APPL_TRACE_DEBUG("%s", __FUNCTION__);
+    alarm_cancel(bta_hf_client_cb.scb.at_cb.hold_timer);
+}
+
+static void bta_hf_client_start_at_hold_timer(void)
+{
+    APPL_TRACE_DEBUG("%s", __FUNCTION__);
+    alarm_set_on_queue(bta_hf_client_cb.scb.at_cb.hold_timer,
+                       BTA_HF_CLIENT_AT_HOLD_TIMEOUT,
+                       bta_hf_client_at_hold_timer_cback,
+                       NULL,
+                       btu_bta_alarm_queue);
+}
+
+/******************************************************************************
+**
+**          COMMON AT EVENT HANDLING FUNCTIONS
+**
+**   Receives data (strings, ints, etc.) from the parser and processes this data.
+**   No buffer parsing is being done here.
+*******************************************************************************/
+
+static void bta_hf_client_handle_ok()
+{
+    APPL_TRACE_DEBUG("%s", __FUNCTION__);
+
+    bta_hf_client_stop_at_resp_timer();
+
+    if (!bta_hf_client_cb.scb.svc_conn)
+    {
+        bta_hf_client_slc_seq(FALSE);
+        return;
+    }
+
+    switch(bta_hf_client_cb.scb.at_cb.current_cmd)
+    {
+        case BTA_HF_CLIENT_AT_BIA:
+        case BTA_HF_CLIENT_AT_BCC:
+            break;
+        case BTA_HF_CLIENT_AT_BCS:
+            bta_hf_client_start_at_hold_timer();
+            bta_hf_client_cb.scb.at_cb.current_cmd = BTA_HF_CLIENT_AT_NONE;
+            return;
+        case BTA_HF_CLIENT_AT_CLIP: //last cmd is post slc seq
+            if (bta_hf_client_cb.scb.send_at_reply == FALSE)
+            {
+                bta_hf_client_cb.scb.send_at_reply = TRUE;
+            }
+            break;
+        case BTA_HF_CLIENT_AT_NONE:
+            bta_hf_client_stop_at_hold_timer();
+            break;
+        default:
+            if (bta_hf_client_cb.scb.send_at_reply)
+            {
+                bta_hf_client_at_result(BTA_HF_CLIENT_AT_RESULT_OK, 0);
+            }
+            break;
+    }
+
+    bta_hf_client_cb.scb.at_cb.current_cmd = BTA_HF_CLIENT_AT_NONE;
+
+    bta_hf_client_send_queued_at();
+}
+
+static void bta_hf_client_handle_error(tBTA_HF_CLIENT_AT_RESULT_TYPE type, UINT16 cme)
+{
+    APPL_TRACE_DEBUG("%s %u %u", __FUNCTION__, type, cme);
+
+    bta_hf_client_stop_at_resp_timer();
+
+    if (!bta_hf_client_cb.scb.svc_conn)
+    {
+        bta_hf_client_slc_seq(TRUE);
+        return;
+    }
+
+    switch(bta_hf_client_cb.scb.at_cb.current_cmd)
+    {
+        case BTA_HF_CLIENT_AT_BIA:
+            break;
+        case BTA_HF_CLIENT_AT_BCC:
+        case BTA_HF_CLIENT_AT_BCS:
+            bta_hf_client_cback_sco(BTA_HF_CLIENT_AUDIO_CLOSE_EVT);
+            break;
+        case BTA_HF_CLIENT_AT_CLIP: //last cmd is post slc seq
+            if (bta_hf_client_cb.scb.send_at_reply == FALSE)
+            {
+                bta_hf_client_cb.scb.send_at_reply = TRUE;
+            }
+            break;
+        default:
+            if (bta_hf_client_cb.scb.send_at_reply)
+            {
+                bta_hf_client_at_result(type, cme);
+            }
+            break;
+    }
+
+    bta_hf_client_cb.scb.at_cb.current_cmd = BTA_HF_CLIENT_AT_NONE;
+
+    bta_hf_client_send_queued_at();
+}
+
+static void bta_hf_client_handle_ring()
+{
+    APPL_TRACE_DEBUG("%s", __FUNCTION__);
+    bta_hf_client_evt_val(BTA_HF_CLIENT_RING_INDICATION,0);
+}
+
+static void bta_hf_client_handle_brsf(UINT32 value)
+{
+    APPL_TRACE_DEBUG("%s 0x%x", __FUNCTION__, value);
+    bta_hf_client_cb.scb.peer_features = value;
+}
+
+/* handles a single indicator descriptor - registers it for value changing events */
+static void bta_hf_client_handle_cind_list_item(char *name, UINT32 min, UINT32 max, UINT32 index)
+{
+
+    UINT8 i = 0;
+
+    APPL_TRACE_DEBUG("%s %lu.%s <%lu:%lu>", __FUNCTION__, index, name, min, max);
+
+    /* look for a matching indicator on list of supported ones */
+    for(i = 0; i < BTA_HF_CLIENT_AT_SUPPORTED_INDICATOR_COUNT; i++)
+    {
+        if (strcmp(name,BTA_HF_CLIENT_INDICATOR_SERVICE) == 0)
+        {
+            service_index = index;
+        }
+        /* look for a match - search one sign further than indicators name to check for string end */
+        /* It will distinguish 'callheld' which could be matched by strncmp as 'call'.               */
+        if (strncmp(name, bta_hf_client_indicators[i].name, bta_hf_client_indicators[i].namelen) != 0)
+            continue;
+
+        /* index - enumerates value position in the incoming sequence                      */
+        /* if name matches one of the known indicators, add its incoming position          */
+        /* to lookup table for easy value->indicator matching later, when only values come  */
+        bta_hf_client_cb.scb.at_cb.indicator_lookup[index] = i;
+
+        return;
+    }
+}
+
+static void bta_hf_client_handle_cind_value(UINT32 index, UINT32 value)
+{
+    APPL_TRACE_DEBUG("%s index: %u value: %u", __FUNCTION__, index, value);
+
+    if (index >= BTA_HF_CLIENT_AT_INDICATOR_COUNT)
+    {
+        return;
+    }
+
+    if (service_index == index)
+    {
+        if (value == 0)
+        {
+            service_availability = FALSE;
+        }
+        else
+        {
+            service_availability = TRUE;
+        }
+    }
+    if (bta_hf_client_cb.scb.at_cb.indicator_lookup[index] == -1)
+    {
+        return;
+    }
+
+    /* get the real array index from lookup table */
+    index = bta_hf_client_cb.scb.at_cb.indicator_lookup[index];
+
+    /* Ignore out of range values */
+    if(value > bta_hf_client_indicators[index].max ||
+       value < bta_hf_client_indicators[index].min)
+    {
+        return;
+    }
+
+    /* tBTA_HF_CLIENT_IND_TYPE match index in bta_hf_client_indicators */
+    bta_hf_client_ind(index, value);
+}
+
+static void bta_hf_client_handle_chld(UINT32 mask)
+{
+    APPL_TRACE_DEBUG("%s 0x%x", __FUNCTION__, mask);
+
+    bta_hf_client_cb.scb.chld_features |= mask;
+}
+
+static void bta_hf_client_handle_ciev(UINT32 index, UINT32 value)
+{
+    INT8 realind = -1;
+
+    APPL_TRACE_DEBUG("%s index: %u value: %u", __FUNCTION__, index, value);
+
+    if(index == 0 || index > BTA_HF_CLIENT_AT_INDICATOR_COUNT)
+    {
+        return;
+    }
+
+    if (service_index == index - 1)
+    {
+        service_availability = value == 0 ? FALSE : TRUE;
+    }
+
+    realind = bta_hf_client_cb.scb.at_cb.indicator_lookup[index - 1];
+
+    if(realind >= 0 && realind < BTA_HF_CLIENT_AT_SUPPORTED_INDICATOR_COUNT)
+    {
+        /* get the real in-array index from lookup table by index it comes at */
+        /* if there is no bug it should automatically be correctly calculated    */
+        if(value > bta_hf_client_indicators[realind].max || value < bta_hf_client_indicators[realind].min)
+        {
+            return;
+        }
+
+        /* update service availability on +ciev from AG. */
+        if (service_index == (index - 1))
+        {
+            if (value == 1)
+            {
+                service_availability = TRUE;
+            }
+            else
+            {
+                service_availability = FALSE;
+            }
+        }
+
+        /* tBTA_HF_CLIENT_IND_TYPE match index in bta_hf_client_indicators */
+        bta_hf_client_ind(realind, value);
+    }
+}
+
+static void bta_hf_client_handle_bcs(UINT32 codec)
+{
+    APPL_TRACE_DEBUG("%s %u", __FUNCTION__, codec);
+
+    if (codec == BTM_SCO_CODEC_CVSD ||
+            (codec == BTM_SCO_CODEC_MSBC && bta_hf_client_cb.msbc_enabled == TRUE))
+    {
+        bta_hf_client_cb.scb.negotiated_codec = codec;
+        bta_hf_client_send_at_bcs(codec);
+    }
+    else
+    {
+        bta_hf_client_cb.scb.negotiated_codec = BTM_SCO_CODEC_CVSD;
+        bta_hf_client_send_at_bac();
+    }
+}
+
+static void bta_hf_client_handle_bsir(UINT32 provided)
+{
+    APPL_TRACE_DEBUG("%s %u", __FUNCTION__, provided);
+
+    bta_hf_client_evt_val(BTA_HF_CLIENT_BSIR_EVT, provided);
+}
+
+static void bta_hf_client_handle_cmeerror(UINT32 code)
+{
+    bta_hf_client_handle_error(BTA_HF_CLIENT_AT_RESULT_CME, code);
+}
+
+static void bta_hf_client_handle_vgm(UINT32 value)
+{
+    APPL_TRACE_DEBUG("%s %lu", __FUNCTION__, value);
+
+    if(value <= BTA_HF_CLIENT_VGM_MAX)
+    {
+        bta_hf_client_evt_val(BTA_HF_CLIENT_MIC_EVT, value);
+    }
+}
+
+static void bta_hf_client_handle_vgs(UINT32 value)
+{
+    APPL_TRACE_DEBUG("%s %lu", __FUNCTION__, value);
+
+    if(value <= BTA_HF_CLIENT_VGS_MAX)
+    {
+        bta_hf_client_evt_val(BTA_HF_CLIENT_SPK_EVT, value);
+    }
+}
+
+static void bta_hf_client_handle_bvra(UINT32 value)
+{
+    APPL_TRACE_DEBUG("%s %lu", __FUNCTION__, value);
+
+    if (value > 1)
+    {
+        return;
+    }
+
+    bta_hf_client_evt_val(BTA_HF_CLIENT_VOICE_REC_EVT, value);
+}
+
+static void bta_hf_client_handle_clip(char *numstr, UINT32 type)
+{
+    APPL_TRACE_DEBUG("%s %u %s", __FUNCTION__, type, numstr);
+
+    bta_hf_client_clip(numstr);
+}
+
+static void bta_hf_client_handle_ccwa(char *numstr, UINT32 type)
+{
+    APPL_TRACE_DEBUG("%s %u %s", __FUNCTION__, type, numstr);
+
+    bta_hf_client_ccwa(numstr);
+}
+
+static void bta_hf_client_handle_cops(char *opstr, UINT32 mode)
+{
+    APPL_TRACE_DEBUG("%s %u %s", __FUNCTION__, mode, opstr);
+
+    bta_hf_client_operator_name(opstr);
+}
+
+static void bta_hf_client_handle_binp(char *numstr)
+{
+    APPL_TRACE_DEBUG("%s %s", __FUNCTION__, numstr);
+
+    bta_hf_client_binp(numstr);
+}
+
+static void bta_hf_client_handle_clcc(UINT16 idx, UINT16 dir, UINT16 status, UINT16 mode, UINT16 mpty, char *numstr, UINT16 type)
+{
+    APPL_TRACE_DEBUG("%s idx: %u dir: %u status: %u mode: %u mpty: %u",
+                        __FUNCTION__, idx, dir, status, mode, mpty);
+
+    if (numstr)
+    {
+        APPL_TRACE_DEBUG("%s number: %s  type: %u", __FUNCTION__, numstr, type);
+    }
+
+    bta_hf_client_clcc(idx, dir, status, mpty, numstr);
+}
+
+static void bta_hf_client_handle_cnum( char *numstr, UINT16 type, UINT16 service)
+{
+    APPL_TRACE_DEBUG("%s number: %s type: %u service: %u", __FUNCTION__, numstr, type, service);
+
+    /* TODO: should number be modified according to type? */
+    bta_hf_client_cnum(numstr, service);
+}
+
+static void bta_hf_client_handle_btrh( UINT16 code)
+{
+    APPL_TRACE_DEBUG("%s %lu", __FUNCTION__, code);
+
+    bta_hf_client_evt_val(BTA_HF_CLIENT_BTRH_EVT, code);
+}
+
+/******************************************************************************
+**
+**          COMMON AT EVENTS PARSING FUNCTIONS
+**
+*******************************************************************************/
+
+/* Check if prefix match and skip spaces if any */
+#define AT_CHECK_EVENT(buf, event) \
+    if (strncmp("\r\n"event, buf,sizeof("\r\n"event) - 1) != 0) return buf; \
+    buf += sizeof("\r\n"event) - 1; \
+    while (*buf == ' ') buf++;
+
+/* check for <cr><lf> and forward buffer if match */
+#define AT_CHECK_RN(buf) \
+    if (strncmp("\r\n", buf, sizeof("\r\n") - 1) != 0) { \
+        APPL_TRACE_DEBUG("%s missing end <cr><lf>", __FUNCTION__); \
+        return NULL;} \
+    buf += sizeof("\r\n") - 1;
+
+/* skip rest of AT string up to <cr> */
+#define AT_SKIP_REST(buf) while(*buf != '\r') buf++;
+
+static char *bta_hf_client_parse_ok(char *buffer)
+{
+    AT_CHECK_EVENT(buffer, "OK");
+    AT_CHECK_RN(buffer);
+
+    bta_hf_client_handle_ok();
+
+    return buffer;
+}
+
+static char *bta_hf_client_parse_error(char *buffer)
+{
+    AT_CHECK_EVENT(buffer, "ERROR");
+    AT_CHECK_RN(buffer);
+
+    bta_hf_client_handle_error(BTA_HF_CLIENT_AT_RESULT_ERROR, 0);
+
+    return buffer;
+}
+
+static char *bta_hf_client_parse_ring(char *buffer)
+{
+    AT_CHECK_EVENT(buffer, "RING");
+    AT_CHECK_RN(buffer);
+
+    bta_hf_client_handle_ring();
+
+    return buffer;
+}
+
+/* generic uint32 parser */
+static char *bta_hf_client_parse_uint32(char *buffer, void (*handler_callback)(UINT32))
+{
+    UINT32 value;
+    int res;
+    int offset;
+
+    res = sscanf(buffer, "%u%n", &value, &offset);
+    if (res < 1)
+    {
+        return NULL;
+    }
+
+    buffer += offset;
+
+    AT_CHECK_RN(buffer);
+
+    handler_callback(value);
+    return buffer;
+}
+
+static char *bta_hf_client_parse_brsf(char *buffer)
+{
+    AT_CHECK_EVENT(buffer, "+BRSF:");
+
+    return bta_hf_client_parse_uint32(buffer, bta_hf_client_handle_brsf);
+}
+
+static char *bta_hf_client_parse_cind_values(char *buffer)
+{
+    /* value and its position */
+    UINT16 index = 0;
+    UINT32 value = 0;
+
+    int offset;
+    int res;
+
+    while((res = sscanf(buffer, "%u%n", &value, &offset)) > 0)
+    {
+        /* decides if its valid index and value, if yes stores it */
+        bta_hf_client_handle_cind_value(index, value);
+
+        buffer += offset;
+
+        /* check if more values are present */
+        if (*buffer != ',')
+        {
+            break;
+        }
+
+        index++;
+        buffer++;
+    }
+
+    if (res > 0)
+    {
+        AT_CHECK_RN(buffer);
+        return buffer;
+    }
+
+    return NULL;
+}
+
+static char *bta_hf_client_parse_cind_list(char *buffer)
+{
+    int offset = 0;
+    char name[129];
+    UINT32 min, max;
+    UINT32 index = 0;
+    int res;
+
+    while ((res = sscanf(buffer, "(\"%128[^\"]\",(%u%*[-,]%u))%n", name, &min, &max, &offset)) > 2)
+    {
+        bta_hf_client_handle_cind_list_item(name, min, max, index);
+        if (offset == 0)
+        {
+            APPL_TRACE_ERROR("%s: Format Error %s", __func__, buffer);
+            return NULL;
+        }
+
+        buffer += offset;
+        index++;
+
+        if (*buffer != ',')
+        {
+            break;
+        }
+
+        buffer++;
+    }
+
+    if (res > 2)
+    {
+        AT_CHECK_RN(buffer);
+        return buffer;
+    }
+
+    return NULL;
+}
+
+static char *bta_hf_client_parse_cind(char *buffer)
+{
+    AT_CHECK_EVENT(buffer, "+CIND:");
+
+    if(*buffer == '(')
+        return bta_hf_client_parse_cind_list(buffer);
+
+    return bta_hf_client_parse_cind_values(buffer);
+}
+
+static char *bta_hf_client_parse_chld(char *buffer)
+{
+    AT_CHECK_EVENT(buffer, "+CHLD:");
+
+    if (*buffer != '(')
+    {
+        return NULL;
+    }
+
+    buffer++;
+
+    while(*buffer != '\0')
+    {
+        if(strncmp("0",buffer, 1) == 0)
+        {
+            bta_hf_client_handle_chld(BTA_HF_CLIENT_CHLD_REL);
+            buffer++;
+        }
+        else if(strncmp("1x",buffer, 2) == 0)
+        {
+            bta_hf_client_handle_chld(BTA_HF_CLIENT_CHLD_REL_X);
+            buffer += 2;
+        }
+        else if(strncmp("1",buffer, 1) == 0)
+        {
+            bta_hf_client_handle_chld(BTA_HF_CLIENT_CHLD_REL_ACC);
+            buffer++;
+        }
+        else if(strncmp("2x",buffer, 2) == 0)
+        {
+            bta_hf_client_handle_chld(BTA_HF_CLIENT_CHLD_PRIV_X);
+            buffer += 2;
+        }
+        else if(strncmp("2",buffer, 1) == 0)
+        {
+            bta_hf_client_handle_chld(BTA_HF_CLIENT_CHLD_HOLD_ACC);
+            buffer++;
+        }
+        else if(strncmp("3",buffer, 1) == 0)
+        {
+            bta_hf_client_handle_chld(BTA_HF_CLIENT_CHLD_MERGE);
+            buffer++;
+        }
+        else if(strncmp("4",buffer, 1) == 0)
+        {
+            bta_hf_client_handle_chld(BTA_HF_CLIENT_CHLD_MERGE_DETACH);
+            buffer++;
+        }
+        else
+        {
+            return NULL;
+        }
+
+        if (*buffer == ',')
+        {
+            buffer++;
+            continue;
+        }
+
+        if (*buffer == ')')
+        {
+            buffer++;
+            break;
+        }
+
+        return NULL;
+    }
+
+    AT_CHECK_RN(buffer);
+
+    return buffer;
+}
+
+static char *bta_hf_client_parse_ciev(char *buffer)
+{
+    UINT32 index, value;
+    int res;
+    int offset = 0;
+
+    AT_CHECK_EVENT(buffer, "+CIEV:");
+
+    res = sscanf(buffer, "%u,%u%n", &index, &value, &offset);
+    if(res < 2)
+    {
+        return NULL;
+    }
+
+    if (offset == 0)
+    {
+        APPL_TRACE_ERROR("%s: Format Error %s", __func__, buffer);
+        return NULL;
+    }
+
+    buffer += offset;
+
+    AT_CHECK_RN(buffer);
+
+    bta_hf_client_handle_ciev(index, value);
+    return buffer;
+}
+
+static char *bta_hf_client_parse_bcs(char *buffer)
+{
+    AT_CHECK_EVENT(buffer, "+BCS:");
+
+    return bta_hf_client_parse_uint32(buffer, bta_hf_client_handle_bcs);
+}
+
+static char *bta_hf_client_parse_bsir(char *buffer)
+{
+    AT_CHECK_EVENT(buffer, "+BSIR:");
+
+    return bta_hf_client_parse_uint32(buffer, bta_hf_client_handle_bsir);
+}
+
+static char *bta_hf_client_parse_cmeerror(char *buffer)
+{
+    AT_CHECK_EVENT(buffer, "+CME ERROR:");
+
+    return bta_hf_client_parse_uint32(buffer, bta_hf_client_handle_cmeerror);
+}
+
+static char *bta_hf_client_parse_vgm(char *buffer)
+{
+    AT_CHECK_EVENT(buffer, "+VGM:");
+
+    return bta_hf_client_parse_uint32(buffer, bta_hf_client_handle_vgm);
+}
+
+static char *bta_hf_client_parse_vgme(char *buffer)
+{
+    AT_CHECK_EVENT(buffer, "+VGM=");
+
+    return bta_hf_client_parse_uint32(buffer, bta_hf_client_handle_vgm);
+}
+
+static char *bta_hf_client_parse_vgs(char *buffer)
+{
+    AT_CHECK_EVENT(buffer, "+VGS:");
+
+    return bta_hf_client_parse_uint32(buffer, bta_hf_client_handle_vgs);
+}
+
+static char *bta_hf_client_parse_vgse(char *buffer)
+{
+    AT_CHECK_EVENT(buffer, "+VGS=");
+
+    return bta_hf_client_parse_uint32(buffer, bta_hf_client_handle_vgs);
+}
+
+static char *bta_hf_client_parse_bvra(char *buffer)
+{
+    AT_CHECK_EVENT(buffer, "+BVRA:");
+
+    return bta_hf_client_parse_uint32(buffer, bta_hf_client_handle_bvra);
+}
+
+static char *bta_hf_client_parse_clip(char *buffer)
+{
+    /* spec forces 32 chars, plus \0 here */
+    char number[33];
+    UINT32 type = 0;
+    int res;
+    int offset = 0;
+
+    AT_CHECK_EVENT(buffer, "+CLIP:");
+
+    /* there might be something more after %lu but HFP doesn't care */
+    res = sscanf(buffer, "\"%32[^\"]\",%u%n", number, &type, &offset);
+    if(res < 2)
+    {
+        return NULL;
+    }
+
+    if (offset == 0)
+    {
+        APPL_TRACE_ERROR("%s: Format Error %s", __func__, buffer);
+        return NULL;
+    }
+
+    buffer += offset;
+
+    AT_SKIP_REST(buffer);
+
+    AT_CHECK_RN(buffer);
+
+    bta_hf_client_handle_clip(number, type);
+    return buffer;
+}
+
+/* in HFP context there is no difference between ccwa and clip */
+static char *bta_hf_client_parse_ccwa(char *buffer)
+{
+    /* ac to spec 32 chars max, plus \0 here */
+    char number[33];
+    UINT32 type = 0;
+    int res ;
+    int offset = 0;
+
+    AT_CHECK_EVENT(buffer, "+CCWA:");
+
+    /* there might be something more after %lu but HFP doesn't care */
+    res = sscanf(buffer, "\"%32[^\"]\",%u%n", number, &type, &offset);
+    if(res < 2)
+    {
+        return NULL;
+    }
+
+    if (offset == 0)
+    {
+        APPL_TRACE_ERROR("%s: Format Error %s", __func__, buffer);
+        return NULL;
+    }
+
+    buffer += offset;
+
+    AT_SKIP_REST(buffer);
+
+    AT_CHECK_RN(buffer);
+
+    bta_hf_client_handle_ccwa(number, type);
+    return buffer;
+}
+
+static char *bta_hf_client_parse_cops(char *buffer)
+{
+    UINT8 mode;
+    /* spec forces 16 chars max, plus \0 here */
+    char opstr[17];
+    int res;
+    int offset = 0;
+
+    AT_CHECK_EVENT(buffer, "+COPS:");
+
+    /* TODO: Not sure if operator string actually can contain escaped " char inside */
+    res = sscanf(buffer, "%hhi,0,\"%16[^\"]\"%n", &mode, opstr, &offset);
+    if(res < 2)
+    {
+        return NULL;
+    }
+    /* Abort in case offset not set because of format error */
+    if (offset == 0)
+    {
+        APPL_TRACE_ERROR("%s: Format Error %s", __func__, buffer);
+        return NULL;
+    }
+
+    buffer += offset;
+
+    AT_SKIP_REST(buffer);
+
+    AT_CHECK_RN(buffer);
+
+    bta_hf_client_handle_cops(opstr, mode);
+    // check for OK Response in end
+    AT_CHECK_EVENT(buffer, "OK");
+    AT_CHECK_RN(buffer);
+
+    bta_hf_client_handle_ok();
+
+    return buffer;
+}
+
+static char *bta_hf_client_parse_binp(char *buffer)
+{
+    /* HFP only supports phone number as BINP data */
+    /* phone number is 32 chars plus one for \0*/
+    char numstr[33];
+    int res;
+    int offset = 0;
+
+    AT_CHECK_EVENT(buffer, "+BINP:");
+
+    res = sscanf(buffer, "\"%32[^\"]\"\r\n%n", numstr, &offset);
+    if(res < 1)
+    {
+        return NULL;
+    }
+
+    /* Abort in case offset not set because of format error */
+    if (offset == 0)
+    {
+        APPL_TRACE_ERROR("%s: Format Error %s", __func__, buffer);
+        return NULL;
+    }
+
+    buffer += offset;
+
+    /* some phones might sent type as well, just skip it */
+    AT_SKIP_REST(buffer);
+
+    AT_CHECK_RN(buffer);
+
+    bta_hf_client_handle_binp(numstr);
+
+    // check for OK response in end
+    AT_CHECK_EVENT(buffer, "OK");
+    AT_CHECK_RN(buffer);
+
+    bta_hf_client_handle_ok();
+
+    return buffer;
+}
+
+static char *bta_hf_client_parse_clcc(char *buffer)
+{
+    UINT16 idx, dir, status, mode, mpty;
+    char numstr[33];     /* spec forces 32 chars, plus one for \0*/
+    UINT16 type;
+    int res;
+    int offset = 0;
+
+    AT_CHECK_EVENT(buffer, "+CLCC:");
+
+    res = sscanf(buffer, "%hu,%hu,%hu,%hu,%hu%n",
+                    &idx, &dir, &status, &mode, &mpty, &offset);
+    if (res < 5)
+    {
+        return NULL;
+    }
+
+    /* Abort in case offset not set because of format error */
+    if (offset == 0)
+    {
+        APPL_TRACE_ERROR("%s: Format Error %s", __func__, buffer);
+        return NULL;
+    }
+
+    buffer += offset;
+    offset = 0;
+
+    /* check optional part */
+    if (*buffer == ',')
+    {
+        int res2 = sscanf(buffer, ",\"%32[^\"]\",%hu%n", numstr, &type, &offset);
+        if (res2 < 0)
+            return NULL;
+
+        if (res2 == 0)
+        {
+            res2 = sscanf(buffer, ",\"\",%hu%n", &type, &offset);
+            if (res < 0)
+                return NULL;
+
+            /* numstr is not matched in second attempt, correct this */
+            res2++;
+            numstr[0] = '\0';
+        }
+
+        if (res2 >= 2)
+        {
+            res += res2;
+            /* Abort in case offset not set because of format error */
+            if (offset == 0)
+            {
+                APPL_TRACE_ERROR("%s: Format Error %s", __func__, buffer);
+                return NULL;
+            }
+
+            buffer += offset;
+        }
+    }
+
+    /* Skip any remaing param,as they are not defined by BT HFP spec */
+    AT_SKIP_REST(buffer);
+    AT_CHECK_RN(buffer);
+
+    if (res > 6)
+    {
+        /* we also have last two optional parameters */
+        bta_hf_client_handle_clcc(idx, dir, status, mode, mpty, numstr, type);
+    }
+    else
+    {
+        /* we didn't get the last two parameters */
+        bta_hf_client_handle_clcc(idx, dir, status, mode, mpty, NULL, 0);
+    }
+
+    // check for OK response in end
+    AT_CHECK_EVENT(buffer, "OK");
+    AT_CHECK_RN(buffer);
+
+    bta_hf_client_handle_ok();
+    return buffer;
+}
+
+static char *bta_hf_client_parse_cnum(char *buffer)
+{
+    char numstr[33];     /* spec forces 32 chars, plus one for \0*/
+    UINT16 type;
+    UINT16 service = 0; /* 0 in case this optional parameter is not being sent */
+    int res;
+    int offset = 0;
+
+    AT_CHECK_EVENT(buffer, "+CNUM:");
+
+    res = sscanf(buffer, ",\"%32[^\"]\",%hu,,%hu%n", numstr, &type, &service, &offset);
+    if(res < 0)
+    {
+        return NULL;
+    }
+
+    if (res == 0)
+    {
+        res = sscanf(buffer, ",\"\",%hu,,%hu%n", &type, &service, &offset);
+        if (res < 0)
+        {
+            return NULL;
+        }
+
+        /* numstr is not matched in second attempt, correct this */
+        res++;
+        numstr[0] = '\0';
+    }
+
+    if (res < 3)
+    {
+        return NULL;
+    }
+
+    /* Abort in case offset not set because of format error */
+    if (offset == 0)
+    {
+        APPL_TRACE_ERROR("%s: Format Error %s", __func__, buffer);
+        return NULL;
+    }
+
+    buffer += offset;
+
+    AT_CHECK_RN(buffer);
+
+    /* service is optional */
+    if(res == 2)
+    {
+        bta_hf_client_handle_cnum(numstr, type, service);
+        return buffer;
+    }
+
+    if (service != 4 && service != 5)
+    {
+        return NULL;
+    }
+
+    bta_hf_client_handle_cnum(numstr, type, service);
+
+    // check for OK response in end
+    AT_CHECK_EVENT(buffer, "OK");
+    AT_CHECK_RN(buffer);
+
+    bta_hf_client_handle_ok();
+    return buffer;
+}
+
+static char *bta_hf_client_parse_btrh(char *buffer)
+{
+    UINT16 code = 0;
+    int res;
+    int offset;
+
+    AT_CHECK_EVENT(buffer, "+BTRH:");
+
+    res = sscanf(buffer, "%hu%n", &code, &offset);
+    if(res < 1)
+    {
+        return NULL;
+    }
+
+    buffer += offset;
+
+    AT_CHECK_RN(buffer);
+
+    bta_hf_client_handle_btrh(code);
+    return buffer;
+}
+
+static char *bta_hf_client_parse_busy(char *buffer)
+{
+    AT_CHECK_EVENT(buffer, "BUSY");
+    AT_CHECK_RN(buffer);
+
+    bta_hf_client_handle_error(BTA_HF_CLIENT_AT_RESULT_BUSY, 0);
+
+    return buffer;
+}
+
+static char *bta_hf_client_parse_delayed(char *buffer)
+{
+    AT_CHECK_EVENT(buffer, "DELAYED");
+    AT_CHECK_RN(buffer);
+
+    bta_hf_client_handle_error(BTA_HF_CLIENT_AT_RESULT_DELAY, 0);
+
+    return buffer;
+}
+
+static char *bta_hf_client_parse_no_carrier(char *buffer)
+{
+    AT_CHECK_EVENT(buffer, "NO CARRIER");
+    AT_CHECK_RN(buffer);
+
+    bta_hf_client_handle_error(BTA_HF_CLIENT_AT_RESULT_NO_CARRIER, 0);
+
+    return buffer;
+}
+
+static char *bta_hf_client_parse_no_answer(char *buffer)
+{
+    AT_CHECK_EVENT(buffer, "NO ANSWER");
+    AT_CHECK_RN(buffer);
+
+    bta_hf_client_handle_error(BTA_HF_CLIENT_AT_RESULT_NO_ANSWER, 0);
+
+    return buffer;
+}
+
+static char *bta_hf_client_parse_blacklisted(char *buffer)
+{
+    AT_CHECK_EVENT(buffer, "BLACKLISTED");
+    AT_CHECK_RN(buffer);
+
+    bta_hf_client_handle_error(BTA_HF_CLIENT_AT_RESULT_BLACKLISTED, 0);
+
+    return buffer;
+}
+
+static char *bta_hf_client_skip_unknown(char *buffer)
+{
+    char *start;
+    char *tmp;
+
+    tmp = strstr(buffer, "\r\n");
+    if (tmp == NULL)
+    {
+        return NULL;
+    }
+
+    buffer += 2;
+    start = buffer;
+
+    tmp = strstr(buffer, "\r\n");
+    if (tmp == NULL)
+    {
+        return NULL;
+    }
+
+    buffer = tmp + 2;
+
+    APPL_TRACE_DEBUG("%s %.*s", __FUNCTION__, buffer - start - 2, start);
+
+    return buffer;
+}
+
+
+/******************************************************************************
+**       SUPPORTED EVENT MESSAGES
+*******************************************************************************/
+
+/* returned values are as follow:
+ * != NULL && != buf  : match and parsed ok
+ * == NULL            : match but parse failed
+ * != NULL && == buf  : no match
+ */
+typedef char* (*tBTA_HF_CLIENT_PARSER_CALLBACK)(char*);
+
+static const tBTA_HF_CLIENT_PARSER_CALLBACK bta_hf_client_parser_cb[] =
+{
+    bta_hf_client_parse_ok,
+    bta_hf_client_parse_error,
+    bta_hf_client_parse_ring,
+    bta_hf_client_parse_brsf,
+    bta_hf_client_parse_cind,
+    bta_hf_client_parse_ciev,
+    bta_hf_client_parse_chld,
+    bta_hf_client_parse_bcs,
+    bta_hf_client_parse_bsir,
+    bta_hf_client_parse_cmeerror,
+    bta_hf_client_parse_vgm,
+    bta_hf_client_parse_vgme,
+    bta_hf_client_parse_vgs,
+    bta_hf_client_parse_vgse,
+    bta_hf_client_parse_bvra,
+    bta_hf_client_parse_clip,
+    bta_hf_client_parse_ccwa,
+    bta_hf_client_parse_cops,
+    bta_hf_client_parse_binp,
+    bta_hf_client_parse_clcc,
+    bta_hf_client_parse_cnum,
+    bta_hf_client_parse_btrh,
+    bta_hf_client_parse_busy,
+    bta_hf_client_parse_delayed,
+    bta_hf_client_parse_no_carrier,
+    bta_hf_client_parse_no_answer,
+    bta_hf_client_parse_blacklisted,
+    bta_hf_client_skip_unknown
+};
+
+/* calculate supported event list length */
+static const UINT16 bta_hf_client_psraser_cb_count =
+        sizeof(bta_hf_client_parser_cb) / sizeof(bta_hf_client_parser_cb[0]);
+
+#ifdef BTA_HF_CLIENT_AT_DUMP
+static void bta_hf_client_dump_at(void)
+{
+    char dump[(4 * BTA_HF_CLIENT_AT_PARSER_MAX_LEN) + 1];
+    char *p1, *p2;
+
+    p1 = bta_hf_client_cb.scb.at_cb.buf;
+    p2 = dump;
+
+    while (*p1 != '\0')
+    {
+        if (*p1 == '\r')
+        {
+            strlcpy(p2, "<cr>", 4);
+            p2 += 4;
+        }
+        else if (*p1 == '\n')
+        {
+            strlcpy(p2, "<lf>", 4);
+            p2 += 4;
+        }
+        else
+        {
+            *p2 = *p1;
+            p2++;
+        }
+        p1++;
+    }
+
+    *p2 = '\0';
+
+    APPL_TRACE_DEBUG("%s %s", __FUNCTION__, dump);
+}
+#endif
+
+static void bta_hf_client_at_parse_start(void)
+{
+    char *buf = bta_hf_client_cb.scb.at_cb.buf;
+
+    APPL_TRACE_DEBUG("%s", __FUNCTION__);
+
+#ifdef BTA_HF_CLIENT_AT_DUMP
+    bta_hf_client_dump_at();
+#endif
+
+    while(*buf != '\0')
+    {
+        int i;
+        char *tmp = NULL;
+
+        for(i = 0; i < bta_hf_client_psraser_cb_count; i++)
+        {
+            tmp = bta_hf_client_parser_cb[i](buf);
+            if (tmp == NULL)
+            {
+                APPL_TRACE_ERROR("HFPCient: AT event/reply parsing failed, skipping");
+                tmp = bta_hf_client_skip_unknown(buf);
+                break;
+            }
+
+            /* matched or unknown skipped, if unknown failed tmp is NULL so
+               this is also handled */
+            if (tmp != buf)
+            {
+                buf = tmp;
+                break;
+            }
+        }
+
+        /* could not skip unknown (received garbage?)... disconnect */
+        if (tmp == NULL)
+        {
+            APPL_TRACE_ERROR("HFPCient: could not skip unknown AT event, disconnecting");
+            bta_hf_client_at_reset();
+            bta_hf_client_sm_execute(BTA_HF_CLIENT_API_CLOSE_EVT, NULL);
+            return;
+        }
+
+        buf = tmp;
+    }
+}
+
+static BOOLEAN bta_hf_client_check_at_complete(void)
+{
+    BOOLEAN ret = FALSE;
+    tBTA_HF_CLIENT_AT_CB *at_cb = &bta_hf_client_cb.scb.at_cb;
+
+    if (at_cb->offset >= BTA_HF_CLIENT_AT_EVENT_MIN_LEN)
+    {
+        if (at_cb->buf[at_cb->offset - 2] == '\r' && at_cb->buf[at_cb->offset - 1] == '\n')
+        {
+            ret = TRUE;
+        }
+    }
+
+    APPL_TRACE_DEBUG("%s %d", __FUNCTION__, ret);
+
+    return ret;
+}
+
+static void bta_hf_client_at_clear_buf(void)
+{
+    memset(bta_hf_client_cb.scb.at_cb.buf, 0, sizeof(bta_hf_client_cb.scb.at_cb.buf));
+    bta_hf_client_cb.scb.at_cb.offset = 0;
+}
+
+/******************************************************************************
+**
+**          MAIN PARSING FUNCTION
+**
+**
+*******************************************************************************/
+void bta_hf_client_at_parse(char *buf, unsigned int len)
+{
+    APPL_TRACE_DEBUG("%s offset: %u len: %u", __FUNCTION__, bta_hf_client_cb.scb.at_cb.offset, len);
+
+    if (len + bta_hf_client_cb.scb.at_cb.offset > BTA_HF_CLIENT_AT_PARSER_MAX_LEN)
+    {
+        char tmp_buff[BTA_HF_CLIENT_AT_PARSER_MAX_LEN];
+        unsigned int tmp = bta_hf_client_cb.scb.at_cb.offset;
+        unsigned int space_left = BTA_HF_CLIENT_AT_PARSER_MAX_LEN - bta_hf_client_cb.scb.at_cb.offset;
+
+        APPL_TRACE_DEBUG("%s overrun, trying to recover", __FUNCTION__);
+
+        /* fill up parser buffer */
+        memcpy(bta_hf_client_cb.scb.at_cb.buf + bta_hf_client_cb.scb.at_cb.offset, buf, space_left);
+        len -= space_left;
+        buf += space_left;
+        bta_hf_client_cb.scb.at_cb.offset += space_left;
+
+        /* find end of last complete command before proceeding */
+        while(bta_hf_client_check_at_complete() == FALSE)
+        {
+            if (bta_hf_client_cb.scb.at_cb.offset == 0) {
+                APPL_TRACE_ERROR("HFPClient: AT parser buffer overrun, disconnecting");
+
+                bta_hf_client_at_reset();
+                bta_hf_client_sm_execute(BTA_HF_CLIENT_API_CLOSE_EVT, NULL);
+                return;
+            }
+
+            bta_hf_client_cb.scb.at_cb.offset--;
+        }
+
+        /* cut buffer to complete AT event and keep cut data */
+        tmp += space_left - bta_hf_client_cb.scb.at_cb.offset;
+        memcpy(tmp_buff, bta_hf_client_cb.scb.at_cb.buf + bta_hf_client_cb.scb.at_cb.offset, tmp);
+        bta_hf_client_cb.scb.at_cb.buf[bta_hf_client_cb.scb.at_cb.offset] = '\0';
+
+        /* parse */
+        bta_hf_client_at_parse_start();
+        bta_hf_client_at_clear_buf();
+
+        /* recover cut data */
+        memcpy(bta_hf_client_cb.scb.at_cb.buf, tmp_buff, tmp);
+        bta_hf_client_cb.scb.at_cb.offset += tmp;
+    }
+
+    memcpy(bta_hf_client_cb.scb.at_cb.buf + bta_hf_client_cb.scb.at_cb.offset, buf, len);
+    bta_hf_client_cb.scb.at_cb.offset += len;
+
+    /* If last event is complete, parsing can be started */
+    if (bta_hf_client_check_at_complete() == TRUE)
+    {
+        bta_hf_client_at_parse_start();
+        bta_hf_client_at_clear_buf();
+    }
+}
+
+void bta_hf_client_send_at_brsf(void)
+{
+    char buf[BTA_HF_CLIENT_AT_MAX_LEN];
+    int at_len;
+
+    APPL_TRACE_DEBUG("%s", __FUNCTION__);
+
+    at_len = snprintf(buf, sizeof(buf), "AT+BRSF=%u\r", bta_hf_client_cb.scb.features);
+    if (at_len < 0)
+    {
+        APPL_TRACE_ERROR("%s: AT command Framing error", __func__);
+        return;
+    }
+
+    bta_hf_client_send_at(BTA_HF_CLIENT_AT_BRSF , buf, at_len);
+}
+
+void bta_hf_client_send_at_bac(void)
+{
+    char *buf;
+
+    APPL_TRACE_DEBUG("%s", __FUNCTION__);
+
+    if (bta_hf_client_cb.msbc_enabled)
+    {
+        buf = "AT+BAC=1,2\r";
+    }
+    else
+    {
+        buf = "AT+BAC=1\r";
+    }
+
+    bta_hf_client_send_at(BTA_HF_CLIENT_AT_BAC, buf, strlen(buf));
+}
+
+void bta_hf_client_send_at_bcs(UINT32 codec)
+{
+    char buf[BTA_HF_CLIENT_AT_MAX_LEN];
+    int at_len;
+
+    APPL_TRACE_DEBUG("%s", __FUNCTION__);
+
+    at_len = snprintf(buf, sizeof(buf), "AT+BCS=%u\r", codec);
+    if (at_len < 0)
+    {
+        APPL_TRACE_ERROR("%s: AT command Framing error", __func__);
+        return;
+    }
+
+    bta_hf_client_send_at(BTA_HF_CLIENT_AT_BCS, buf, at_len);
+}
+
+void bta_hf_client_send_at_cind(BOOLEAN status)
+{
+    char *buf;
+    tBTA_HF_CLIENT_AT_CMD cmd;
+
+    APPL_TRACE_DEBUG("%s", __FUNCTION__);
+
+    if (status)
+    {
+        buf = "AT+CIND?\r";
+        cmd = BTA_HF_CLIENT_AT_CIND_STATUS;
+    }
+    else
+    {
+        buf = "AT+CIND=?\r";
+        cmd = BTA_HF_CLIENT_AT_CIND;
+    }
+
+    bta_hf_client_send_at(cmd, buf, strlen(buf));
+}
+
+void bta_hf_client_send_at_cmer(BOOLEAN activate)
+{
+    char *buf;
+
+    APPL_TRACE_DEBUG("%s", __FUNCTION__);
+
+    if (activate)
+        buf = "AT+CMER=3,0,0,1\r";
+    else
+        buf = "AT+CMER=3,0,0,0\r";
+
+    bta_hf_client_send_at(BTA_HF_CLIENT_AT_CMER, buf, strlen(buf));
+}
+
+void bta_hf_client_send_at_chld(char cmd, UINT32 idx)
+{
+    char buf[BTA_HF_CLIENT_AT_MAX_LEN];
+    int at_len;
+
+    APPL_TRACE_DEBUG("%s", __FUNCTION__);
+
+    if (idx > 0)
+        at_len = snprintf(buf, sizeof(buf), "AT+CHLD=%c%u\r", cmd, idx);
+    else
+        at_len = snprintf(buf, sizeof(buf), "AT+CHLD=%c\r", cmd);
+
+    if (at_len < 0)
+    {
+        APPL_TRACE_ERROR("%s: AT command Framing error", __func__);
+        return;
+    }
+
+    bta_hf_client_send_at(BTA_HF_CLIENT_AT_CHLD, buf, at_len);
+}
+
+void bta_hf_client_send_at_clip(BOOLEAN activate)
+{
+    char *buf;
+
+    APPL_TRACE_DEBUG("%s", __FUNCTION__);
+
+    if (activate)
+        buf = "AT+CLIP=1\r";
+    else
+        buf = "AT+CLIP=0\r";
+
+    bta_hf_client_send_at(BTA_HF_CLIENT_AT_CLIP, buf, strlen(buf));
+}
+
+void bta_hf_client_send_at_ccwa(BOOLEAN activate)
+{
+    char *buf;
+
+    APPL_TRACE_DEBUG("%s", __FUNCTION__);
+
+    if (activate)
+        buf = "AT+CCWA=1\r";
+    else
+        buf = "AT+CCWA=0\r";
+
+    bta_hf_client_send_at(BTA_HF_CLIENT_AT_CCWA, buf, strlen(buf));
+}
+
+
+void bta_hf_client_send_at_cmee(BOOLEAN activate)
+{
+    char *buf;
+
+    APPL_TRACE_DEBUG("%s", __FUNCTION__);
+
+    if (activate)
+        buf = "AT+CMEE=1\r";
+    else
+        buf = "AT+CMEE=0\r";
+
+    bta_hf_client_send_at(BTA_HF_CLIENT_AT_CMEE, buf, strlen(buf));
+}
+
+void bta_hf_client_send_at_cops(BOOLEAN query)
+{
+    char *buf;
+
+    APPL_TRACE_DEBUG("%s", __FUNCTION__);
+
+    if (query)
+        buf = "AT+COPS?\r";
+    else
+        buf = "AT+COPS=3,0\r";
+
+    bta_hf_client_send_at(BTA_HF_CLIENT_AT_COPS, buf, strlen(buf));
+}
+
+void bta_hf_client_send_at_clcc(void)
+{
+    char *buf;
+
+    APPL_TRACE_DEBUG("%s", __FUNCTION__);
+
+    buf = "AT+CLCC\r";
+
+    bta_hf_client_send_at(BTA_HF_CLIENT_AT_CLCC, buf, strlen(buf));
+}
+
+void bta_hf_client_send_at_bvra(BOOLEAN enable)
+{
+    char *buf;
+
+    APPL_TRACE_DEBUG("%s", __FUNCTION__);
+
+    if (enable)
+        buf = "AT+BVRA=1\r";
+    else
+        buf = "AT+BVRA=0\r";
+
+    bta_hf_client_send_at(BTA_HF_CLIENT_AT_BVRA, buf, strlen(buf));
+}
+
+void bta_hf_client_send_at_vgs(UINT32 volume)
+{
+    char buf[BTA_HF_CLIENT_AT_MAX_LEN];
+    int at_len;
+
+    APPL_TRACE_DEBUG("%s", __FUNCTION__);
+
+    at_len = snprintf(buf, sizeof(buf), "AT+VGS=%u\r", volume);
+    if (at_len < 0)
+    {
+        APPL_TRACE_ERROR("%s: AT command Framing error", __func__);
+        return;
+    }
+
+    bta_hf_client_send_at(BTA_HF_CLIENT_AT_VGS, buf, at_len);
+}
+
+void bta_hf_client_send_at_vgm(UINT32 volume)
+{
+    char buf[BTA_HF_CLIENT_AT_MAX_LEN];
+    int at_len;
+
+    APPL_TRACE_DEBUG("%s", __FUNCTION__);
+
+    at_len = snprintf(buf, sizeof(buf), "AT+VGM=%u\r", volume);
+    if (at_len < 0)
+    {
+        APPL_TRACE_ERROR("%s: AT command Framing error", __func__);
+        return;
+    }
+
+    bta_hf_client_send_at(BTA_HF_CLIENT_AT_VGM, buf, at_len);
+}
+
+void bta_hf_client_send_at_atd(char *number, UINT32 memory)
+{
+    char buf[BTA_HF_CLIENT_AT_MAX_LEN];
+    int at_len;
+
+    APPL_TRACE_DEBUG("%s", __FUNCTION__);
+
+    if (number[0] != '\0') {
+        at_len = snprintf(buf, sizeof(buf), "ATD%s;\r", number);
+    } else {
+        at_len = snprintf(buf, sizeof(buf), "ATD>%u;\r", memory);
+    }
+
+    if (at_len < 0) {
+        APPL_TRACE_ERROR("%s: error preparing ATD command", __func__);
+        return;
+    }
+
+    at_len = MIN((size_t)at_len, sizeof(buf));
+
+    if (at_len < 0)
+    {
+        APPL_TRACE_ERROR("%s: AT command Framing error", __func__);
+        return;
+    }
+    bta_hf_client_send_at(BTA_HF_CLIENT_AT_ATD, buf, at_len);
+}
+
+void bta_hf_client_send_at_bldn(void)
+{
+    char *buf;
+
+    APPL_TRACE_DEBUG("%s", __FUNCTION__);
+
+    buf = "AT+BLDN\r";
+
+    bta_hf_client_send_at(BTA_HF_CLIENT_AT_BLDN, buf, strlen(buf));
+}
+
+void bta_hf_client_send_at_ata(void)
+{
+    char *buf;
+
+    APPL_TRACE_DEBUG("%s", __FUNCTION__);
+
+    buf = "ATA\r";
+
+    bta_hf_client_send_at(BTA_HF_CLIENT_AT_ATA, buf, strlen(buf));
+}
+
+void bta_hf_client_send_at_chup(void)
+{
+    char *buf;
+
+    APPL_TRACE_DEBUG("%s", __FUNCTION__);
+
+    buf = "AT+CHUP\r";
+
+    bta_hf_client_send_at(BTA_HF_CLIENT_AT_CHUP, buf, strlen(buf));
+}
+
+void bta_hf_client_send_at_btrh(BOOLEAN query, UINT32 val)
+{
+    char buf[BTA_HF_CLIENT_AT_MAX_LEN];
+    int at_len;
+
+    APPL_TRACE_DEBUG("%s", __FUNCTION__);
+
+    if (query == TRUE)
+    {
+        at_len = snprintf(buf, sizeof(buf), "AT+BTRH?\r");
+    }
+    else
+    {
+        at_len = snprintf(buf, sizeof(buf), "AT+BTRH=%u\r", val);
+    }
+
+    if (at_len < 0)
+    {
+        APPL_TRACE_ERROR("%s: AT command Framing error", __func__);
+        return;
+    }
+
+    bta_hf_client_send_at(BTA_HF_CLIENT_AT_BTRH, buf, at_len);
+}
+
+void bta_hf_client_send_at_vts(char code)
+{
+    char buf[BTA_HF_CLIENT_AT_MAX_LEN];
+    int at_len;
+
+    APPL_TRACE_DEBUG("%s", __FUNCTION__);
+
+    at_len = snprintf(buf, sizeof(buf), "AT+VTS=%c\r", code);
+
+    if (at_len < 0)
+    {
+        APPL_TRACE_ERROR("%s: AT command Framing error", __func__);
+        return;
+    }
+
+    bta_hf_client_send_at(BTA_HF_CLIENT_AT_VTS, buf, at_len);
+}
+
+void bta_hf_client_send_at_bcc(void)
+{
+    char *buf;
+
+    APPL_TRACE_DEBUG("%s", __FUNCTION__);
+
+    buf = "AT+BCC\r";
+
+    bta_hf_client_send_at(BTA_HF_CLIENT_AT_BCC, buf, strlen(buf));
+}
+
+void bta_hf_client_send_at_cnum(void)
+{
+    char *buf;
+
+    APPL_TRACE_DEBUG("%s", __FUNCTION__);
+
+    buf = "AT+CNUM\r";
+
+    bta_hf_client_send_at(BTA_HF_CLIENT_AT_CNUM, buf, strlen(buf));
+}
+
+void bta_hf_client_send_at_nrec(void)
+{
+    char *buf;
+
+    APPL_TRACE_DEBUG("%s", __FUNCTION__);
+
+    if (!(bta_hf_client_cb.scb.peer_features & BTA_HF_CLIENT_PEER_FEAT_ECNR))
+    {
+        APPL_TRACE_ERROR("%s: Remote does not support NREC.", __FUNCTION__);
+        return;
+    }
+
+    buf = "AT+NREC=0\r";
+
+    bta_hf_client_send_at(BTA_HF_CLIENT_AT_NREC, buf, strlen(buf));
+}
+
+void bta_hf_client_send_at_binp(UINT32 action)
+{
+    char buf[BTA_HF_CLIENT_AT_MAX_LEN];
+    int at_len;
+
+    APPL_TRACE_DEBUG("%s", __FUNCTION__);
+
+    at_len = snprintf(buf, sizeof(buf), "AT+BINP=%u\r", action);
+
+    if (at_len < 0)
+    {
+        APPL_TRACE_ERROR("%s: AT command Framing error", __func__);
+        return;
+    }
+
+    bta_hf_client_send_at(BTA_HF_CLIENT_AT_BINP, buf, at_len);
+}
+
+void bta_hf_client_send_at_bia(void)
+{
+    char buf[BTA_HF_CLIENT_AT_MAX_LEN];
+    int at_len;
+    int i;
+
+    APPL_TRACE_DEBUG("%s", __FUNCTION__);
+    if (bta_hf_client_cb.scb.peer_version < HFP_VERSION_1_6)
+    {
+        APPL_TRACE_DEBUG("Remote does not Support AT+BIA");
+        return;
+    }
+
+    at_len = snprintf(buf, sizeof(buf), "AT+BIA=");
+
+    for(i = 0; i < BTA_HF_CLIENT_AT_INDICATOR_COUNT; i++)
+    {
+        int sup = bta_hf_client_cb.scb.at_cb.indicator_lookup[i] == -1 ? 0 : 1;
+
+        at_len += snprintf(buf + at_len, sizeof(buf) - at_len, "%u,", sup);
+    }
+
+    buf[at_len - 1] = '\r';
+
+    if (at_len < 0)
+    {
+        APPL_TRACE_ERROR("%s: AT command Framing error", __func__);
+        return;
+    }
+
+    bta_hf_client_send_at(BTA_HF_CLIENT_AT_BIA, buf, at_len);
+}
+
+void bta_hf_client_at_init(void)
+{
+    alarm_free(bta_hf_client_cb.scb.at_cb.resp_timer);
+    alarm_free(bta_hf_client_cb.scb.at_cb.hold_timer);
+    memset(&bta_hf_client_cb.scb.at_cb, 0, sizeof(tBTA_HF_CLIENT_AT_CB));
+    bta_hf_client_cb.scb.at_cb.resp_timer =
+      alarm_new("bta_hf_client.scb_at_resp_timer");
+    bta_hf_client_cb.scb.at_cb.hold_timer =
+      alarm_new("bta_hf_client.scb_at_hold_timer");
+    bta_hf_client_at_reset();
+}
+
+void bta_hf_client_at_reset(void)
+{
+    int i;
+
+    bta_hf_client_stop_at_resp_timer();
+    bta_hf_client_stop_at_hold_timer();
+
+    bta_hf_client_clear_queued_at();
+
+    bta_hf_client_at_clear_buf();
+
+    for (i = 0; i < BTA_HF_CLIENT_AT_INDICATOR_COUNT; i++)
+    {
+        bta_hf_client_cb.scb.at_cb.indicator_lookup[i] = -1;
+    }
+
+    bta_hf_client_cb.scb.at_cb.current_cmd = BTA_HF_CLIENT_AT_NONE;
+}
diff --git a/rtkbt/code/bt/bta/hf_client/bta_hf_client_at.h b/rtkbt/code/bt/bta/hf_client/bta_hf_client_at.h
new file mode 100755
index 0000000..78b5d63
--- /dev/null
+++ b/rtkbt/code/bt/bta/hf_client/bta_hf_client_at.h
@@ -0,0 +1,113 @@
+/******************************************************************************
+ *
+ *  Copyright (c) 2014 The Android Open Source Project
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/*****************************************************************************
+**  Data types
+*****************************************************************************/
+
+/* ASCII character string of arguments to the AT command */
+#define BTA_HF_CLIENT_AT_MAX_LEN        512
+
+/* AT command table element */
+typedef struct
+{
+    const char  *p_cmd;         /* AT command string */
+    UINT8       arg_type;       /* allowable argument type syntax */
+    UINT8       fmt;            /* whether arg is int or string */
+    UINT8       min;            /* minimum value for int arg */
+    INT16       max;            /* maximum value for int arg */
+} tBTA_AG_AT_CMD;
+
+/* callback function executed when command is parsed */
+typedef void (tBTA_AG_AT_CMD_CBACK)(void *p_user, UINT16 cmd, UINT8 arg_type,
+                                    char *p_arg, INT16 int_arg);
+
+/* callback function executed to send "ERROR" result code */
+typedef void (tBTA_AG_AT_ERR_CBACK)(void *p_user, BOOLEAN unknown, char *p_arg);
+
+enum
+{
+    BTA_HF_CLIENT_AT_NONE,
+    BTA_HF_CLIENT_AT_BRSF,
+    BTA_HF_CLIENT_AT_BAC,
+    BTA_HF_CLIENT_AT_CIND,
+    BTA_HF_CLIENT_AT_CIND_STATUS,
+    BTA_HF_CLIENT_AT_CMER,
+    BTA_HF_CLIENT_AT_CHLD,
+    BTA_HF_CLIENT_AT_CMEE,
+    BTA_HF_CLIENT_AT_BIA,
+    BTA_HF_CLIENT_AT_CLIP,
+    BTA_HF_CLIENT_AT_CCWA,
+    BTA_HF_CLIENT_AT_COPS,
+    BTA_HF_CLIENT_AT_CLCC,
+    BTA_HF_CLIENT_AT_BVRA,
+    BTA_HF_CLIENT_AT_VGS,
+    BTA_HF_CLIENT_AT_VGM,
+    BTA_HF_CLIENT_AT_ATD,
+    BTA_HF_CLIENT_AT_BLDN,
+    BTA_HF_CLIENT_AT_ATA,
+    BTA_HF_CLIENT_AT_CHUP,
+    BTA_HF_CLIENT_AT_BTRH,
+    BTA_HF_CLIENT_AT_VTS,
+    BTA_HF_CLIENT_AT_BCC,
+    BTA_HF_CLIENT_AT_BCS,
+    BTA_HF_CLIENT_AT_CNUM,
+    BTA_HF_CLIENT_AT_NREC,
+    BTA_HF_CLIENT_AT_BINP,
+};
+
+typedef UINT8 tBTA_HF_CLIENT_AT_CMD;
+
+/* Maximum combined buffer for received AT events string */
+#define BTA_HF_CLIENT_AT_PARSER_MAX_LEN        4096
+
+/* This structure holds prepared AT command queued for sending */
+struct queued_at_cmd{
+    tBTA_HF_CLIENT_AT_CMD cmd;
+    char buf[BTA_HF_CLIENT_AT_MAX_LEN];
+    UINT16 buf_len;
+    struct queued_at_cmd *next;
+};
+typedef struct queued_at_cmd tBTA_HF_CLIENT_AT_QCMD;
+
+/* Maximum number of indicators */
+#define BTA_HF_CLIENT_AT_INDICATOR_COUNT 20
+
+/* AT command parsing control block */
+typedef struct
+{
+    char                    buf[BTA_HF_CLIENT_AT_PARSER_MAX_LEN + 1]; /* extra byte to always have \0 at the end */
+    unsigned int            offset;
+    tBTA_HF_CLIENT_AT_CMD   current_cmd;
+    tBTA_HF_CLIENT_AT_QCMD  *queued_cmd;
+    alarm_t                 *resp_timer;    /* AT response timer */
+    alarm_t                 *hold_timer;    /* AT hold timer */
+
+    /* CIND: lookup table to store the sequence of incoming indicators and their values
+       so when their values come later, we know which value in sequence match certain indicator */
+    int                     indicator_lookup[BTA_HF_CLIENT_AT_INDICATOR_COUNT];
+
+} tBTA_HF_CLIENT_AT_CB;
+
+/*****************************************************************************
+**  Functions
+*****************************************************************************/
+
+void bta_hf_client_at_init(void);
+void bta_hf_client_at_reset(void);
diff --git a/rtkbt/code/bt/bta/hf_client/bta_hf_client_cmd.c b/rtkbt/code/bt/bta/hf_client/bta_hf_client_cmd.c
new file mode 100755
index 0000000..59d7b5f
--- /dev/null
+++ b/rtkbt/code/bt/bta/hf_client/bta_hf_client_cmd.c
@@ -0,0 +1,88 @@
+/******************************************************************************
+ *
+ *  Copyright (c) 2014 The Android Open Source Project
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#include "bta_hf_client_int.h"
+#include "stdio.h"
+
+void bta_hf_client_send_at_cmd(tBTA_HF_CLIENT_DATA *p_data)
+{
+    tBTA_HF_CLIENT_DATA_VAL *p_val = (tBTA_HF_CLIENT_DATA_VAL *)p_data;
+    char buf[BTA_HF_CLIENT_AT_MAX_LEN];
+
+    switch(p_val->uint8_val)
+    {
+        case BTA_HF_CLIENT_AT_CMD_VTS:
+            bta_hf_client_send_at_vts((char)p_val->uint32_val1);
+            break;
+        case BTA_HF_CLIENT_AT_CMD_BTRH:
+            bta_hf_client_send_at_btrh(FALSE, p_val->uint32_val1);
+            break;
+        case BTA_HF_CLIENT_AT_CMD_CHUP:
+            bta_hf_client_send_at_chup();
+            break;
+        case BTA_HF_CLIENT_AT_CMD_CHLD:
+            /* expects ascii code for command */
+            bta_hf_client_send_at_chld('0' + p_val->uint32_val1, p_val->uint32_val2);
+            break;
+        case BTA_HF_CLIENT_AT_CMD_BCC:
+            bta_hf_client_send_at_bcc();
+            break;
+        case BTA_HF_CLIENT_AT_CMD_CNUM:
+            bta_hf_client_send_at_cnum();
+            break;
+        case BTA_HF_CLIENT_AT_CMD_ATA:
+            bta_hf_client_send_at_ata();
+            break;
+        case BTA_HF_CLIENT_AT_CMD_COPS:
+            bta_hf_client_send_at_cops(TRUE);
+            break;
+        case BTA_HF_CLIENT_AT_CMD_ATD:
+            bta_hf_client_send_at_atd(p_val->str, p_val->uint32_val1);
+            break;
+        case BTA_HF_CLIENT_AT_CMD_VGM:
+            bta_hf_client_send_at_vgm(p_val->uint32_val1);
+            break;
+        case BTA_HF_CLIENT_AT_CMD_VGS:
+            bta_hf_client_send_at_vgs(p_val->uint32_val1);
+            break;
+        case BTA_HF_CLIENT_AT_CMD_BVRA:
+            bta_hf_client_send_at_bvra(p_val->uint32_val1 == 0 ? FALSE : TRUE);
+            break;
+        case BTA_HF_CLIENT_AT_CMD_CLCC:
+            bta_hf_client_send_at_clcc();
+            break;
+        case BTA_HF_CLIENT_AT_CMD_BINP:
+            bta_hf_client_send_at_binp(p_val->uint32_val1);
+            break;
+        case BTA_HF_CLIENT_AT_CMD_BLDN:
+            bta_hf_client_send_at_bldn();
+            break;
+        case BTA_HF_CLIENT_AT_CMD_NREC:
+            bta_hf_client_send_at_nrec();
+            break;
+        default:
+            APPL_TRACE_ERROR("Default case");
+            snprintf(buf,BTA_HF_CLIENT_AT_MAX_LEN,
+                "Cmd %d 1st arg %u 2nd arg %u string arg %s",
+                p_val->uint8_val, p_val->uint32_val1,
+                p_val->uint32_val2, p_val->str);
+            APPL_TRACE_ERROR("%s ", buf);
+            break;
+    }
+}
diff --git a/rtkbt/code/bt/bta/hf_client/bta_hf_client_int.h b/rtkbt/code/bt/bta/hf_client/bta_hf_client_int.h
new file mode 100755
index 0000000..a2dbde2
--- /dev/null
+++ b/rtkbt/code/bt/bta/hf_client/bta_hf_client_int.h
@@ -0,0 +1,293 @@
+/******************************************************************************
+ *
+ *  Copyright (c) 2014 The Android Open Source Project
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#include "bta_sys.h"
+#include "bta_api.h"
+#include "bta_hf_client_api.h"
+#include "bta_hf_client_at.h"
+
+/*****************************************************************************
+**  Constants
+*****************************************************************************/
+#define HFP_VERSION_1_1         0x0101
+#define HFP_VERSION_1_5         0x0105
+#define HFP_VERSION_1_6         0x0106
+
+/* RFCOMM MTU SIZE */
+#define BTA_HF_CLIENT_MTU       256
+
+/* profile role for connection */
+#define BTA_HF_CLIENT_ACP       0       /* accepted connection */
+#define BTA_HF_CLIENT_INT       1       /* initiating connection */
+
+/* Time (in milliseconds) to wait for retry in case of collision */
+#ifndef BTA_HF_CLIENT_COLLISION_TIMER_MS
+#define BTA_HF_CLIENT_COLLISION_TIMER_MS        2411
+#endif
+
+enum
+{
+    /* these events are handled by the state machine */
+    BTA_HF_CLIENT_API_REGISTER_EVT = BTA_SYS_EVT_START(BTA_ID_HS),
+    BTA_HF_CLIENT_API_DEREGISTER_EVT,
+    BTA_HF_CLIENT_API_OPEN_EVT,
+    BTA_HF_CLIENT_API_CLOSE_EVT,
+    BTA_HF_CLIENT_API_AUDIO_OPEN_EVT,
+    BTA_HF_CLIENT_API_AUDIO_CLOSE_EVT,
+    BTA_HF_CLIENT_RFC_OPEN_EVT,
+    BTA_HF_CLIENT_RFC_CLOSE_EVT,
+    BTA_HF_CLIENT_RFC_SRV_CLOSE_EVT,
+    BTA_HF_CLIENT_RFC_DATA_EVT,
+    BTA_HF_CLIENT_DISC_ACP_RES_EVT,
+    BTA_HF_CLIENT_DISC_INT_RES_EVT,
+    BTA_HF_CLIENT_DISC_OK_EVT,
+    BTA_HF_CLIENT_DISC_FAIL_EVT,
+    BTA_HF_CLIENT_SCO_OPEN_EVT,
+    BTA_HF_CLIENT_SCO_CLOSE_EVT,
+    BTA_HF_CLIENT_SEND_AT_CMD_EVT,
+    BTA_HF_CLIENT_MAX_EVT,
+
+    /* these events are handled outside of the state machine */
+    BTA_HF_CLIENT_API_ENABLE_EVT,
+    BTA_HF_CLIENT_API_DISABLE_EVT
+};
+
+/*****************************************************************************
+**  Data types
+*****************************************************************************/
+
+/* data type for BTA_HF_CLIENT_API_ENABLE_EVT */
+typedef struct
+{
+    BT_HDR                     hdr;
+    tBTA_HF_CLIENT_CBACK      *p_cback;
+} tBTA_HF_CLIENT_API_ENABLE;
+
+/* data type for BTA_HF_CLIENT_API_REGISTER_EVT */
+typedef struct
+{
+    BT_HDR                     hdr;
+    tBTA_HF_CLIENT_CBACK      *p_cback;
+    tBTA_SEC                   sec_mask;
+    tBTA_HF_CLIENT_FEAT        features;
+    char                       name[BTA_SERVICE_NAME_LEN+1];
+} tBTA_HF_CLIENT_API_REGISTER;
+
+/* data type for BTA_HF_CLIENT_API_OPEN_EVT */
+typedef struct
+{
+    BT_HDR              hdr;
+    BD_ADDR             bd_addr;
+    tBTA_SEC            sec_mask;
+} tBTA_HF_CLIENT_API_OPEN;
+
+/* data type for BTA_HF_CLIENT_DISC_RESULT_EVT */
+typedef struct
+{
+    BT_HDR          hdr;
+    UINT16          status;
+} tBTA_HF_CLIENT_DISC_RESULT;
+
+/* data type for RFCOMM events */
+typedef struct
+{
+    BT_HDR          hdr;
+    UINT16          port_handle;
+} tBTA_HF_CLIENT_RFC;
+
+/* generic purpose data type for other events */
+typedef struct
+{
+    BT_HDR          hdr;
+    BOOLEAN         bool_val;
+    UINT8           uint8_val;
+    UINT32          uint32_val1;
+    UINT32          uint32_val2;
+    char            str[BTA_HF_CLIENT_NUMBER_LEN + 1];
+} tBTA_HF_CLIENT_DATA_VAL;
+
+/* union of all event datatypes */
+typedef union
+{
+    BT_HDR                         hdr;
+    tBTA_HF_CLIENT_API_ENABLE      api_enable;
+    tBTA_HF_CLIENT_API_REGISTER    api_register;
+    tBTA_HF_CLIENT_API_OPEN        api_open;
+    tBTA_HF_CLIENT_DISC_RESULT     disc_result;
+    tBTA_HF_CLIENT_RFC             rfc;
+    tBTA_HF_CLIENT_DATA_VAL        val;
+
+} tBTA_HF_CLIENT_DATA;
+
+/* type for each service control block */
+typedef struct
+{
+    UINT16              serv_handle;    /* RFCOMM server handle */
+    BD_ADDR             peer_addr;      /* peer bd address */
+    tSDP_DISCOVERY_DB   *p_disc_db;     /* pointer to discovery database */
+    UINT16              conn_handle;    /* RFCOMM handle of connected service */
+    tBTA_SEC            serv_sec_mask;  /* server security mask */
+    tBTA_SEC            cli_sec_mask;   /* client security mask */
+    tBTA_HF_CLIENT_FEAT        features;       /* features registered by application */
+    tBTA_HF_CLIENT_PEER_FEAT   peer_features;  /* peer device features */
+    tBTA_HF_CLIENT_CHLD_FEAT   chld_features;  /* call handling features */
+    UINT16              peer_version;   /* profile version of peer device */
+    UINT8               peer_scn;       /* peer scn */
+    UINT8               role;           /* initiator/acceptor role */
+    UINT16              sco_idx;        /* SCO handle */
+    UINT8               sco_state;      /* SCO state variable */
+    BOOLEAN             sco_close_rfc;   /* TRUE if also close RFCOMM after SCO */
+    BOOLEAN             retry_with_sco_only;
+    BOOLEAN             deregister;     /* TRUE if service shutting down */
+    BOOLEAN             svc_conn;       /* set to TRUE when service level connection is up */
+    BOOLEAN             send_at_reply;  /* set to TRUE to notify framework about AT results */
+    tBTA_HF_CLIENT_AT_CB at_cb;         /* AT Parser control block */
+    UINT8               state;          /* state machine state */
+    tBTM_SCO_CODEC_TYPE negotiated_codec; /* negotiated codec */
+    alarm_t             *collision_timer; /* Collision timer */
+} tBTA_HF_CLIENT_SCB;
+
+/* sco states */
+enum
+{
+    BTA_HF_CLIENT_SCO_SHUTDOWN_ST,  /* no listening, no connection */
+    BTA_HF_CLIENT_SCO_LISTEN_ST,    /* listening */
+    BTA_HF_CLIENT_SCO_OPENING_ST,   /* connection opening */
+    BTA_HF_CLIENT_SCO_OPEN_CL_ST,   /* opening connection being closed */
+    BTA_HF_CLIENT_SCO_OPEN_ST,      /* open */
+    BTA_HF_CLIENT_SCO_CLOSING_ST,   /* closing */
+    BTA_HF_CLIENT_SCO_CLOSE_OP_ST,  /* closing sco being opened */
+    BTA_HF_CLIENT_SCO_SHUTTING_ST   /* sco shutting down */
+};
+
+/* type for AG control block */
+typedef struct
+{
+    tBTA_HF_CLIENT_SCB         scb;             /* service control block */
+    UINT32                     sdp_handle;
+    UINT8                      scn;
+    tBTA_HF_CLIENT_CBACK       *p_cback;        /* application callback */
+    BOOLEAN                    msbc_enabled;
+} tBTA_HF_CLIENT_CB;
+
+/*****************************************************************************
+**  Global data
+*****************************************************************************/
+
+/* control block declaration */
+extern tBTA_HF_CLIENT_CB bta_hf_client_cb;
+
+/*****************************************************************************
+**  Function prototypes
+*****************************************************************************/
+
+/* main functions */
+extern void bta_hf_client_scb_init(void);
+extern void bta_hf_client_scb_disable(void);
+extern BOOLEAN bta_hf_client_hdl_event(BT_HDR *p_msg);
+extern void bta_hf_client_sm_execute(UINT16 event,
+                                        tBTA_HF_CLIENT_DATA *p_data);
+extern void bta_hf_client_slc_seq(BOOLEAN error);
+extern void bta_hf_client_collision_cback (tBTA_SYS_CONN_STATUS status, UINT8 id,
+                                    UINT8 app_id, BD_ADDR peer_addr);
+extern void bta_hf_client_resume_open ();
+
+/* SDP functions */
+extern BOOLEAN bta_hf_client_add_record(char *p_service_name,
+                                        UINT8 scn, tBTA_HF_CLIENT_FEAT features,
+                                        UINT32 sdp_handle);
+extern void bta_hf_client_create_record(tBTA_HF_CLIENT_DATA *p_data);
+extern void bta_hf_client_del_record(tBTA_HF_CLIENT_DATA *p_data);
+extern BOOLEAN bta_hf_client_sdp_find_attr(void);
+extern void bta_hf_client_do_disc(void);
+extern void bta_hf_client_free_db(tBTA_HF_CLIENT_DATA *p_data);
+
+/* RFCOMM functions */
+extern void bta_hf_client_setup_port(UINT16 handle);
+extern void bta_hf_client_start_server(void);
+extern void bta_hf_client_close_server(void);
+extern void bta_hf_client_rfc_do_open(tBTA_HF_CLIENT_DATA *p_data);
+extern void bta_hf_client_rfc_do_close(tBTA_HF_CLIENT_DATA *p_data);
+
+/* SCO functions */
+extern void bta_hf_client_sco_listen(tBTA_HF_CLIENT_DATA *p_data);
+extern void bta_hf_client_sco_shutdown(tBTA_HF_CLIENT_DATA *p_data);
+extern void bta_hf_client_sco_conn_open(tBTA_HF_CLIENT_DATA *p_data);
+extern void bta_hf_client_sco_conn_close(tBTA_HF_CLIENT_DATA *p_data);
+extern void bta_hf_client_sco_open(tBTA_HF_CLIENT_DATA *p_data);
+extern void bta_hf_client_sco_close(tBTA_HF_CLIENT_DATA *p_data);
+extern void bta_hf_client_cback_sco(UINT8 event);
+
+/* AT command functions */
+extern void bta_hf_client_at_parse(char *buf, unsigned int len);
+extern void bta_hf_client_send_at_brsf(void);
+extern void bta_hf_client_send_at_bac(void);
+extern void bta_hf_client_send_at_cind(BOOLEAN status);
+extern void bta_hf_client_send_at_cmer(BOOLEAN activate);
+extern void bta_hf_client_send_at_chld(char cmd, UINT32 idx);
+extern void bta_hf_client_send_at_clip(BOOLEAN activate);
+extern void bta_hf_client_send_at_ccwa(BOOLEAN activate);
+extern void bta_hf_client_send_at_cmee(BOOLEAN activate);
+extern void bta_hf_client_send_at_cops(BOOLEAN query);
+extern void bta_hf_client_send_at_clcc(void);
+extern void bta_hf_client_send_at_bvra(BOOLEAN enable);
+extern void bta_hf_client_send_at_vgs(UINT32 volume);
+extern void bta_hf_client_send_at_vgm(UINT32 volume);
+extern void bta_hf_client_send_at_atd(char *number, UINT32 memory);
+extern void bta_hf_client_send_at_bldn(void);
+extern void bta_hf_client_send_at_ata(void);
+extern void bta_hf_client_send_at_chup(void);
+extern void bta_hf_client_send_at_btrh(BOOLEAN query, UINT32 val);
+extern void bta_hf_client_send_at_vts(char code);
+extern void bta_hf_client_send_at_bcc(void);
+extern void bta_hf_client_send_at_bcs(UINT32 codec);
+extern void bta_hf_client_send_at_cnum(void);
+extern void bta_hf_client_send_at_nrec(void);
+extern void bta_hf_client_send_at_binp(UINT32 action);
+extern void bta_hf_client_send_at_bia(void);
+
+/* Action functions */
+extern void bta_hf_client_register(tBTA_HF_CLIENT_DATA *p_data);
+extern void bta_hf_client_deregister(tBTA_HF_CLIENT_DATA *p_data);
+extern void bta_hf_client_start_dereg(tBTA_HF_CLIENT_DATA *p_data);
+extern void bta_hf_client_start_close(tBTA_HF_CLIENT_DATA *p_data);
+extern void bta_hf_client_start_open(tBTA_HF_CLIENT_DATA *p_data);
+extern void bta_hf_client_rfc_acp_open(tBTA_HF_CLIENT_DATA *p_data);
+extern void bta_hf_client_rfc_open(tBTA_HF_CLIENT_DATA *p_data);
+extern void bta_hf_client_rfc_fail(tBTA_HF_CLIENT_DATA *p_data);
+extern void bta_hf_client_disc_fail(tBTA_HF_CLIENT_DATA *p_data);
+extern void bta_hf_client_open_fail(tBTA_HF_CLIENT_DATA *p_data);
+extern void bta_hf_client_rfc_close(tBTA_HF_CLIENT_DATA *p_data);
+extern void bta_hf_client_disc_acp_res(tBTA_HF_CLIENT_DATA *p_data);
+extern void bta_hf_client_rfc_data(tBTA_HF_CLIENT_DATA *p_data);
+extern void bta_hf_client_disc_int_res(tBTA_HF_CLIENT_DATA *p_data);
+extern void bta_hf_client_svc_conn_open(tBTA_HF_CLIENT_DATA *p_data);
+extern void bta_hf_client_ind(tBTA_HF_CLIENT_IND_TYPE type, UINT16 value);
+extern void bta_hf_client_evt_val(tBTA_HF_CLIENT_EVT type, UINT16 value);
+extern void bta_hf_client_operator_name(char *name);
+extern void bta_hf_client_clip(char *number);
+extern void bta_hf_client_ccwa(char *number);
+extern void bta_hf_client_at_result(tBTA_HF_CLIENT_AT_RESULT_TYPE type, UINT16 cme);
+extern void bta_hf_client_clcc(UINT32 idx, BOOLEAN incoming, UINT8 status, BOOLEAN mpty, char *number);
+extern void bta_hf_client_cnum(char *number, UINT16 service);
+extern void bta_hf_client_binp(char *number);
+
+/* Commands handling functions */
+extern void bta_hf_client_dial(tBTA_HF_CLIENT_DATA *p_data);
+extern void bta_hf_client_send_at_cmd(tBTA_HF_CLIENT_DATA *p_data);
diff --git a/rtkbt/code/bt/bta/hf_client/bta_hf_client_main.c b/rtkbt/code/bt/bta/hf_client/bta_hf_client_main.c
new file mode 100755
index 0000000..5df418b
--- /dev/null
+++ b/rtkbt/code/bt/bta/hf_client/bta_hf_client_main.c
@@ -0,0 +1,676 @@
+/******************************************************************************
+ *
+ *  Copyright (c) 2014 The Android Open Source Project
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#include <string.h>
+#include <stdlib.h>
+
+#include "osi/include/osi.h"
+#include "osi/include/properties.h"
+#include "bt_utils.h"
+#include "bta_api.h"
+#include "bta_sys.h"
+#include "bta_hf_client_api.h"
+#include "bta_hf_client_int.h"
+
+/* uncomment to enable extra debug */
+/* #define BTA_HF_CLIENT_DEBUG TRUE */
+
+#ifndef BTA_HF_CLIENT_DEBUG
+#define BTA_HF_CLIENT_DEBUG FALSE
+#endif
+
+extern fixed_queue_t *btu_bta_alarm_queue;
+
+#if BTA_HF_CLIENT_DEBUG == TRUE
+static char *bta_hf_client_evt_str(UINT16 event);
+static char *bta_hf_client_state_str(UINT8 state);
+#endif
+
+/* state machine states */
+enum
+{
+    BTA_HF_CLIENT_INIT_ST,
+    BTA_HF_CLIENT_OPENING_ST,
+    BTA_HF_CLIENT_OPEN_ST,
+    BTA_HF_CLIENT_CLOSING_ST
+};
+
+/* state machine action enumeration list */
+enum
+{
+    BTA_HF_CLIENT_REGISTER,
+    BTA_HF_CLIENT_DEREGISTER,
+    BTA_HF_CLIENT_START_DEREG,
+    BTA_HF_CLIENT_RFC_DO_CLOSE,
+    BTA_HF_CLIENT_START_CLOSE,
+    BTA_HF_CLIENT_START_OPEN,
+    BTA_HF_CLIENT_RFC_ACP_OPEN,
+    BTA_HF_CLIENT_SCO_LISTEN,
+    BTA_HF_CLIENT_SCO_CONN_OPEN,
+    BTA_HF_CLIENT_SCO_CONN_CLOSE,
+    BTA_HF_CLIENT_SCO_OPEN,
+    BTA_HF_CLIENT_SCO_CLOSE,
+    BTA_HF_CLIENT_SCO_SHUTDOWN,
+    BTA_HF_CLIENT_FREE_DB,
+    BTA_HF_CLIENT_OPEN_FAIL,
+    BTA_HF_CLIENT_RFC_OPEN,
+    BTA_HF_CLIENT_RFC_FAIL,
+    BTA_HF_CLIENT_DISC_INT_RES,
+    BTA_HF_CLIENT_RFC_DO_OPEN,
+    BTA_HF_CLIENT_DISC_FAIL,
+    BTA_HF_CLIENT_RFC_CLOSE,
+    BTA_HF_CLIENT_RFC_DATA,
+    BTA_HF_CLIENT_DISC_ACP_RES,
+    BTA_HF_CLIENT_SVC_CONN_OPEN,
+    BTA_HF_CLIENT_SEND_AT_CMD,
+    BTA_HF_CLIENT_NUM_ACTIONS,
+};
+
+#define BTA_HF_CLIENT_IGNORE BTA_HF_CLIENT_NUM_ACTIONS
+
+/* type for action functions */
+typedef void (*tBTA_HF_CLIENT_ACTION)(tBTA_HF_CLIENT_DATA *p_data);
+
+/* action functions table, indexed with action enum */
+const tBTA_HF_CLIENT_ACTION bta_hf_client_action[] =
+{
+/* BTA_HF_CLIENT_REGISTER */      bta_hf_client_register,
+/* BTA_HF_CLIENT_DEREGISTER */    bta_hf_client_deregister,
+/* BTA_HF_CLIENT_START_DEREG */   bta_hf_client_start_dereg,
+/* BTA_HF_CLIENT_RFC_DO_CLOSE */  bta_hf_client_rfc_do_close,
+/* BTA_HF_CLIENT_START_CLOSE */   bta_hf_client_start_close,
+/* BTA_HF_CLIENT_START_OPEN */    bta_hf_client_start_open,
+/* BTA_HF_CLIENT_RFC_ACP_OPEN */  bta_hf_client_rfc_acp_open,
+/* BTA_HF_CLIENT_SCO_LISTEN */    bta_hf_client_sco_listen,
+/* BTA_HF_CLIENT_SCO_CONN_OPEN */ bta_hf_client_sco_conn_open,
+/* BTA_HF_CLIENT_SCO_CONN_CLOSE*/ bta_hf_client_sco_conn_close,
+/* BTA_HF_CLIENT_SCO_OPEN */      bta_hf_client_sco_open,
+/* BTA_HF_CLIENT_SCO_CLOSE */     bta_hf_client_sco_close,
+/* BTA_HF_CLIENT_SCO_SHUTDOWN */  bta_hf_client_sco_shutdown,
+/* BTA_HF_CLIENT_FREE_DB */       bta_hf_client_free_db,
+/* BTA_HF_CLIENT_OPEN_FAIL */     bta_hf_client_open_fail,
+/* BTA_HF_CLIENT_RFC_OPEN */      bta_hf_client_rfc_open,
+/* BTA_HF_CLIENT_RFC_FAIL */      bta_hf_client_rfc_fail,
+/* BTA_HF_CLIENT_DISC_INT_RES */  bta_hf_client_disc_int_res,
+/* BTA_HF_CLIENT_RFC_DO_OPEN */   bta_hf_client_rfc_do_open,
+/* BTA_HF_CLIENT_DISC_FAIL */     bta_hf_client_disc_fail,
+/* BTA_HF_CLIENT_RFC_CLOSE */     bta_hf_client_rfc_close,
+/* BTA_HF_CLIENT_RFC_DATA */      bta_hf_client_rfc_data,
+/* BTA_HF_CLIENT_DISC_ACP_RES */  bta_hf_client_disc_acp_res,
+/* BTA_HF_CLIENT_SVC_CONN_OPEN */ bta_hf_client_svc_conn_open,
+/* BTA_HF_CLIENT_SEND_AT_CMD */   bta_hf_client_send_at_cmd,
+};
+
+/* state table information */
+#define BTA_HF_CLIENT_ACTIONS              2       /* number of actions */
+#define BTA_HF_CLIENT_NEXT_STATE           2       /* position of next state */
+#define BTA_HF_CLIENT_NUM_COLS             3       /* number of columns in state tables */
+
+/* state table for init state */
+const UINT8 bta_hf_client_st_init[][BTA_HF_CLIENT_NUM_COLS] =
+{
+/* Event                    Action 1                       Action 2                       Next state */
+/* API_REGISTER_EVT */      {BTA_HF_CLIENT_REGISTER,       BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_INIT_ST},
+/* API_DEREGISTER_EVT */    {BTA_HF_CLIENT_DEREGISTER,     BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_INIT_ST},
+/* API_OPEN_EVT */          {BTA_HF_CLIENT_START_OPEN,     BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_OPENING_ST},
+/* API_CLOSE_EVT */         {BTA_HF_CLIENT_IGNORE,         BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_INIT_ST},
+/* API_AUDIO_OPEN_EVT */    {BTA_HF_CLIENT_IGNORE,         BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_INIT_ST},
+/* API_AUDIO_CLOSE_EVT */   {BTA_HF_CLIENT_IGNORE,         BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_INIT_ST},
+/* RFC_OPEN_EVT */          {BTA_HF_CLIENT_RFC_ACP_OPEN,   BTA_HF_CLIENT_SCO_LISTEN,      BTA_HF_CLIENT_OPEN_ST},
+/* RFC_CLOSE_EVT */         {BTA_HF_CLIENT_IGNORE,         BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_INIT_ST},
+/* RFC_SRV_CLOSE_EVT */     {BTA_HF_CLIENT_IGNORE,         BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_INIT_ST},
+/* RFC_DATA_EVT */          {BTA_HF_CLIENT_IGNORE,         BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_INIT_ST},
+/* DISC_ACP_RES_EVT */      {BTA_HF_CLIENT_FREE_DB,        BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_INIT_ST},
+/* DISC_INT_RES_EVT */      {BTA_HF_CLIENT_IGNORE,         BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_INIT_ST},
+/* DISC_OK_EVT */           {BTA_HF_CLIENT_IGNORE,         BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_INIT_ST},
+/* DISC_FAIL_EVT */         {BTA_HF_CLIENT_IGNORE,         BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_INIT_ST},
+/* SCO_OPEN_EVT */          {BTA_HF_CLIENT_IGNORE,         BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_INIT_ST},
+/* SCO_CLOSE_EVT */         {BTA_HF_CLIENT_IGNORE,         BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_INIT_ST},
+/* SEND_AT_CMD_EVT */       {BTA_HF_CLIENT_IGNORE,         BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_INIT_ST},
+};
+
+/* state table for opening state */
+const UINT8 bta_hf_client_st_opening[][BTA_HF_CLIENT_NUM_COLS] =
+{
+/* Event                    Action 1                       Action 2                       Next state */
+/* API_REGISTER_EVT */      {BTA_HF_CLIENT_IGNORE,         BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_OPENING_ST},
+/* API_DEREGISTER_EVT */    {BTA_HF_CLIENT_RFC_DO_CLOSE,   BTA_HF_CLIENT_START_DEREG,     BTA_HF_CLIENT_CLOSING_ST},
+/* API_OPEN_EVT */          {BTA_HF_CLIENT_OPEN_FAIL,      BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_OPENING_ST},
+/* API_CLOSE_EVT */         {BTA_HF_CLIENT_RFC_DO_CLOSE,   BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_CLOSING_ST},
+/* API_AUDIO_OPEN_EVT */    {BTA_HF_CLIENT_IGNORE,         BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_OPENING_ST},
+/* API_AUDIO_CLOSE_EVT */   {BTA_HF_CLIENT_IGNORE,         BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_OPENING_ST},
+/* RFC_OPEN_EVT */          {BTA_HF_CLIENT_RFC_OPEN,       BTA_HF_CLIENT_SCO_LISTEN,      BTA_HF_CLIENT_OPEN_ST},
+/* RFC_CLOSE_EVT */         {BTA_HF_CLIENT_RFC_FAIL,       BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_INIT_ST},
+/* RFC_SRV_CLOSE_EVT */     {BTA_HF_CLIENT_IGNORE,         BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_OPENING_ST},
+/* RFC_DATA_EVT */          {BTA_HF_CLIENT_IGNORE,         BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_OPENING_ST},
+/* DISC_ACP_RES_EVT */      {BTA_HF_CLIENT_IGNORE,         BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_OPENING_ST},
+/* DISC_INT_RES_EVT */      {BTA_HF_CLIENT_DISC_INT_RES,   BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_OPENING_ST},
+/* DISC_OK_EVT */           {BTA_HF_CLIENT_RFC_DO_OPEN,    BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_OPENING_ST},
+/* DISC_FAIL_EVT */         {BTA_HF_CLIENT_DISC_FAIL,      BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_INIT_ST},
+/* SCO_OPEN_EVT */          {BTA_HF_CLIENT_IGNORE,         BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_OPENING_ST},
+/* SCO_CLOSE_EVT */         {BTA_HF_CLIENT_IGNORE,         BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_OPENING_ST},
+/* SEND_AT_CMD_EVT */       {BTA_HF_CLIENT_IGNORE,         BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_OPENING_ST},
+};
+
+/* state table for open state */
+const UINT8 bta_hf_client_st_open[][BTA_HF_CLIENT_NUM_COLS] =
+{
+/* Event                    Action 1                       Action 2                       Next state */
+/* API_REGISTER_EVT */      {BTA_HF_CLIENT_IGNORE,         BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_OPEN_ST},
+/* API_DEREGISTER_EVT */    {BTA_HF_CLIENT_START_CLOSE,    BTA_HF_CLIENT_START_DEREG,     BTA_HF_CLIENT_CLOSING_ST},
+/* API_OPEN_EVT */          {BTA_HF_CLIENT_OPEN_FAIL,      BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_OPEN_ST},
+/* API_CLOSE_EVT */         {BTA_HF_CLIENT_START_CLOSE,    BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_CLOSING_ST},
+/* API_AUDIO_OPEN_EVT */    {BTA_HF_CLIENT_SCO_OPEN,       BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_OPEN_ST},
+/* API_AUDIO_CLOSE_EVT */   {BTA_HF_CLIENT_SCO_CLOSE,      BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_OPEN_ST},
+/* RFC_OPEN_EVT */          {BTA_HF_CLIENT_IGNORE,         BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_OPEN_ST},
+/* RFC_CLOSE_EVT */         {BTA_HF_CLIENT_RFC_CLOSE,      BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_INIT_ST},
+/* RFC_SRV_CLOSE_EVT */     {BTA_HF_CLIENT_IGNORE,         BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_OPEN_ST},
+/* RFC_DATA_EVT */          {BTA_HF_CLIENT_RFC_DATA,       BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_OPEN_ST},
+/* DISC_ACP_RES_EVT */      {BTA_HF_CLIENT_DISC_ACP_RES,   BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_OPEN_ST},
+/* DISC_INT_RES_EVT */      {BTA_HF_CLIENT_IGNORE,         BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_OPEN_ST},
+/* DISC_OK_EVT */           {BTA_HF_CLIENT_IGNORE,         BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_OPEN_ST},
+/* DISC_FAIL_EVT */         {BTA_HF_CLIENT_IGNORE,         BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_OPEN_ST},
+/* SCO_OPEN_EVT */          {BTA_HF_CLIENT_SCO_CONN_OPEN,  BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_OPEN_ST},
+/* SCO_CLOSE_EVT */         {BTA_HF_CLIENT_SCO_CONN_CLOSE, BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_OPEN_ST},
+/* SEND_AT_CMD_EVT */       {BTA_HF_CLIENT_SEND_AT_CMD,    BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_OPEN_ST},
+};
+
+/* state table for closing state */
+const UINT8 bta_hf_client_st_closing[][BTA_HF_CLIENT_NUM_COLS] =
+{
+/* Event                    Action 1                       Action 2                       Next state */
+/* API_REGISTER_EVT */      {BTA_HF_CLIENT_IGNORE,         BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_CLOSING_ST},
+/* API_DEREGISTER_EVT */    {BTA_HF_CLIENT_START_DEREG,    BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_CLOSING_ST},
+/* API_OPEN_EVT */          {BTA_HF_CLIENT_OPEN_FAIL,      BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_CLOSING_ST},
+/* API_CLOSE_EVT */         {BTA_HF_CLIENT_IGNORE,         BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_CLOSING_ST},
+/* API_AUDIO_OPEN_EVT */    {BTA_HF_CLIENT_IGNORE,         BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_CLOSING_ST},
+/* API_AUDIO_CLOSE_EVT */   {BTA_HF_CLIENT_IGNORE,         BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_CLOSING_ST},
+/* RFC_OPEN_EVT */          {BTA_HF_CLIENT_IGNORE,         BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_CLOSING_ST},
+/* RFC_CLOSE_EVT */         {BTA_HF_CLIENT_RFC_CLOSE,      BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_INIT_ST},
+/* RFC_SRV_CLOSE_EVT */     {BTA_HF_CLIENT_IGNORE,         BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_CLOSING_ST},
+/* RFC_DATA_EVT */          {BTA_HF_CLIENT_IGNORE,         BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_CLOSING_ST},
+/* DISC_ACP_RES_EVT */      {BTA_HF_CLIENT_FREE_DB,        BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_CLOSING_ST},
+/* DISC_INT_RES_EVT */      {BTA_HF_CLIENT_FREE_DB,        BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_INIT_ST},
+/* DISC_OK_EVT */           {BTA_HF_CLIENT_IGNORE,         BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_CLOSING_ST},
+/* DISC_FAIL_EVT */         {BTA_HF_CLIENT_IGNORE,         BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_CLOSING_ST},
+/* SCO_OPEN_EVT */          {BTA_HF_CLIENT_IGNORE,         BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_CLOSING_ST},
+/* SCO_CLOSE_EVT */         {BTA_HF_CLIENT_IGNORE,         BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_CLOSING_ST},
+/* SEND_AT_CMD_EVT */       {BTA_HF_CLIENT_IGNORE,         BTA_HF_CLIENT_IGNORE,          BTA_HF_CLIENT_CLOSING_ST},
+};
+
+/* type for state table */
+typedef const UINT8 (*tBTA_HF_CLIENT_ST_TBL)[BTA_HF_CLIENT_NUM_COLS];
+
+/* state table */
+const tBTA_HF_CLIENT_ST_TBL bta_hf_client_st_tbl[] =
+{
+    bta_hf_client_st_init,
+    bta_hf_client_st_opening,
+    bta_hf_client_st_open,
+    bta_hf_client_st_closing
+};
+
+/* HF Client control block */
+tBTA_HF_CLIENT_CB  bta_hf_client_cb;
+
+/*******************************************************************************
+**
+** Function         bta_hf_client_scb_init
+**
+** Description      Initialize an HF_Client service control block.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hf_client_scb_init(void)
+{
+    APPL_TRACE_DEBUG("%s", __FUNCTION__);
+
+    alarm_free(bta_hf_client_cb.scb.collision_timer);
+    alarm_free(bta_hf_client_cb.scb.at_cb.resp_timer);
+    alarm_free(bta_hf_client_cb.scb.at_cb.hold_timer);
+    memset(&bta_hf_client_cb.scb, 0, sizeof(tBTA_HF_CLIENT_SCB));
+    bta_hf_client_cb.scb.collision_timer =
+      alarm_new("bta_hf_client.scb_collision_timer");
+    bta_hf_client_cb.scb.sco_idx = BTM_INVALID_SCO_INDEX;
+    bta_hf_client_cb.scb.negotiated_codec = BTM_SCO_CODEC_CVSD;
+}
+
+/*******************************************************************************
+**
+** Function         bta_hf_client_scb_disable
+**
+** Description      Disable a service control block.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hf_client_scb_disable(void)
+{
+    APPL_TRACE_DEBUG("%s", __FUNCTION__);
+
+    bta_hf_client_scb_init();
+
+    (*bta_hf_client_cb.p_cback)(BTA_HF_CLIENT_DISABLE_EVT, NULL);
+}
+
+/*******************************************************************************
+**
+** Function         bta_hf_client_resume_open
+**
+** Description      Resume opening process.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hf_client_resume_open (void)
+{
+    APPL_TRACE_DEBUG ("%s", __FUNCTION__);
+
+    /* resume opening process.  */
+    if (bta_hf_client_cb.scb.state == BTA_HF_CLIENT_INIT_ST)
+    {
+        bta_hf_client_cb.scb.state = BTA_HF_CLIENT_OPENING_ST;
+        bta_hf_client_start_open (NULL);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_hf_client_collision_timer_cback
+**
+** Description      HF Client connection collision timer callback
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_hf_client_collision_timer_cback(UNUSED_ATTR void *data)
+{
+    APPL_TRACE_DEBUG("%s", __FUNCTION__);
+
+    /* If the peer haven't opened connection, restart opening process */
+    bta_hf_client_resume_open();
+}
+
+/*******************************************************************************
+**
+** Function         bta_hf_client_collision_cback
+**
+** Description      Get notified about collision.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hf_client_collision_cback (tBTA_SYS_CONN_STATUS status, UINT8 id,
+                                    UINT8 app_id, BD_ADDR peer_addr)
+{
+    UNUSED(status);
+    UNUSED(app_id);
+    UNUSED(peer_addr);
+
+    if (bta_hf_client_cb.scb.state == BTA_HF_CLIENT_OPENING_ST)
+    {
+        if (id == BTA_ID_SYS)   /* ACL collision */
+        {
+            APPL_TRACE_WARNING ("HF Client found collision (ACL) ...");
+        }
+        else if (id == BTA_ID_HS)   /* RFCOMM collision */
+        {
+            APPL_TRACE_WARNING ("HF Client found collision (RFCOMM) ...");
+        }
+        else
+        {
+            APPL_TRACE_WARNING ("HF Client found collision (\?\?\?) ...");
+        }
+
+        bta_hf_client_cb.scb.state = BTA_HF_CLIENT_INIT_ST;
+
+        /* Cancel SDP if it had been started. */
+        if(bta_hf_client_cb.scb.p_disc_db)
+        {
+            (void)SDP_CancelServiceSearch (bta_hf_client_cb.scb.p_disc_db);
+            bta_hf_client_free_db(NULL);
+        }
+
+        /* reopen registered server */
+        /* Collision may be detected before or after we close servers. */
+        bta_hf_client_start_server();
+
+        /* Start timer to handle connection opening restart */
+        alarm_set_on_queue(bta_hf_client_cb.scb.collision_timer,
+                           BTA_HF_CLIENT_COLLISION_TIMER_MS,
+                           bta_hf_client_collision_timer_cback,
+                           NULL,
+                           btu_bta_alarm_queue);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_hf_client_api_enable
+**
+** Description      Handle an API enable event.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_hf_client_api_enable(tBTA_HF_CLIENT_DATA *p_data)
+{
+    char value[PROPERTY_VALUE_MAX];
+
+    /* initialize control block */
+    memset(&bta_hf_client_cb, 0, sizeof(tBTA_HF_CLIENT_CB));
+
+    /* store callback function */
+    bta_hf_client_cb.p_cback = p_data->api_enable.p_cback;
+
+    /* check if mSBC support enabled */
+    osi_property_get("ro.bluetooth.hfp.ver", value, "0");
+    if (strcmp(value,"1.6") == 0)
+    {
+       bta_hf_client_cb.msbc_enabled = TRUE;
+    }
+
+    bta_hf_client_cb.scb.negotiated_codec = BTM_SCO_CODEC_CVSD;
+
+    /* set same setting as AG does */
+    BTM_WriteVoiceSettings(AG_VOICE_SETTINGS);
+
+    bta_sys_collision_register (BTA_ID_HS, bta_hf_client_collision_cback);
+
+    /* call callback with enable event */
+    (*bta_hf_client_cb.p_cback)(BTA_HF_CLIENT_ENABLE_EVT, NULL);
+}
+
+/*******************************************************************************
+**
+** Function         bta_hf_client_api_disable
+**
+** Description      Handle an API disable event.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_hf_client_api_disable(tBTA_HF_CLIENT_DATA *p_data)
+{
+    if (!bta_sys_is_register (BTA_ID_HS))
+    {
+        APPL_TRACE_ERROR("BTA HF Client is already disabled, ignoring ...");
+        return;
+    }
+
+    /* De-register with BTA system manager */
+    bta_sys_deregister(BTA_ID_HS);
+
+    bta_hf_client_sm_execute(BTA_HF_CLIENT_API_DEREGISTER_EVT, p_data);
+
+    bta_sys_collision_register (BTA_ID_HS, NULL);
+}
+
+/*******************************************************************************
+**
+** Function         bta_hf_client_hdl_event
+**
+** Description      Data HF Client main event handling function.
+**
+**
+** Returns          BOOLEAN
+**
+*******************************************************************************/
+BOOLEAN bta_hf_client_hdl_event(BT_HDR *p_msg)
+{
+#if BTA_HF_CLIENT_DEBUG == TRUE
+    APPL_TRACE_DEBUG("bta_hf_client_hdl_event %s (0x%x)", bta_hf_client_evt_str(p_msg->event), p_msg->event);
+#endif
+
+    switch (p_msg->event)
+    {
+        /* handle enable event */
+        case BTA_HF_CLIENT_API_ENABLE_EVT:
+            bta_hf_client_api_enable((tBTA_HF_CLIENT_DATA *) p_msg);
+            break;
+
+        /* handle disable event */
+        case BTA_HF_CLIENT_API_DISABLE_EVT:
+            bta_hf_client_api_disable((tBTA_HF_CLIENT_DATA *) p_msg);
+            break;
+
+        default:
+                bta_hf_client_sm_execute(p_msg->event, (tBTA_HF_CLIENT_DATA *) p_msg);
+            break;
+    }
+    return TRUE;
+}
+
+/*******************************************************************************
+**
+** Function         bta_hf_client_sm_execute
+**
+** Description      State machine event handling function for HF Client
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hf_client_sm_execute(UINT16 event, tBTA_HF_CLIENT_DATA *p_data)
+{
+    tBTA_HF_CLIENT_ST_TBL      state_table;
+    UINT8               action;
+    int                 i;
+
+#if BTA_HF_CLIENT_DEBUG == TRUE
+    UINT16  in_event = event;
+    UINT8 in_state =  bta_hf_client_cb.scb.state;
+
+    /* Ignore displaying of AT results when not connected (Ignored in state machine) */
+    if (bta_hf_client_cb.scb.state == BTA_HF_CLIENT_OPEN_ST)
+    {
+        APPL_TRACE_EVENT("HF Client evt : State %d (%s), Event 0x%04x (%s)",
+                           bta_hf_client_cb.scb.state,
+                           bta_hf_client_state_str(bta_hf_client_cb.scb.state),
+                           event, bta_hf_client_evt_str(event));
+    }
+#endif
+
+    event &= 0x00FF;
+    if (event >= (BTA_HF_CLIENT_MAX_EVT & 0x00FF))
+    {
+        APPL_TRACE_ERROR("HF Client evt out of range, ignoring...");
+        return;
+    }
+
+    /* look up the state table for the current state */
+    state_table = bta_hf_client_st_tbl[bta_hf_client_cb.scb.state];
+
+    /* set next state */
+    bta_hf_client_cb.scb.state = state_table[event][BTA_HF_CLIENT_NEXT_STATE];
+
+    /* execute action functions */
+    for (i = 0; i < BTA_HF_CLIENT_ACTIONS; i++)
+    {
+        if ((action = state_table[event][i]) != BTA_HF_CLIENT_IGNORE)
+        {
+            (*bta_hf_client_action[action])(p_data);
+        }
+        else
+        {
+            break;
+        }
+    }
+
+#if BTA_HF_CLIENT_DEBUG == TRUE
+    if (bta_hf_client_cb.scb.state != in_state)
+    {
+        APPL_TRACE_EVENT("BTA HF Client State Change: [%s] -> [%s] after Event [%s]",
+                              bta_hf_client_state_str(in_state),
+                              bta_hf_client_state_str(bta_hf_client_cb.scb.state),
+                              bta_hf_client_evt_str(in_event));
+    }
+#endif
+}
+
+static void send_post_slc_cmd(void)
+{
+    bta_hf_client_cb.scb.at_cb.current_cmd = BTA_HF_CLIENT_AT_NONE;
+
+    bta_hf_client_send_at_bia();
+    bta_hf_client_send_at_ccwa(TRUE);
+    bta_hf_client_send_at_cmee(TRUE);
+    bta_hf_client_send_at_cops(FALSE);
+    bta_hf_client_send_at_btrh(TRUE, 0);
+    bta_hf_client_send_at_clip(TRUE);
+}
+
+/*******************************************************************************
+**
+** Function         bta_hf_client_slc_seq
+**
+** Description      Handles AT commands sequence required for SLC creation
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hf_client_slc_seq(BOOLEAN error)
+{
+    APPL_TRACE_DEBUG("bta_hf_client_slc_seq cmd: %u", bta_hf_client_cb.scb.at_cb.current_cmd);
+
+    if (error) {
+        /* SLC establishment error, sent close rfcomm event */
+        APPL_TRACE_ERROR("HFPClient: Failed to create SLC due to AT error, disconnecting (%u)",
+                bta_hf_client_cb.scb.at_cb.current_cmd);
+
+        bta_hf_client_sm_execute(BTA_HF_CLIENT_API_CLOSE_EVT, NULL);
+        return;
+    }
+
+    if (bta_hf_client_cb.scb.svc_conn)
+        return;
+
+    switch (bta_hf_client_cb.scb.at_cb.current_cmd)
+    {
+    case BTA_HF_CLIENT_AT_NONE:
+        bta_hf_client_send_at_brsf();
+        break;
+
+    case BTA_HF_CLIENT_AT_BRSF:
+        if ((bta_hf_client_cb.scb.features & BTA_HF_CLIENT_FEAT_CODEC)
+                && (bta_hf_client_cb.scb.peer_features & BTA_HF_CLIENT_PEER_CODEC))
+        {
+            bta_hf_client_send_at_bac();
+            break;
+        }
+
+        bta_hf_client_send_at_cind(FALSE);
+        break;
+
+    case BTA_HF_CLIENT_AT_BAC:
+        bta_hf_client_send_at_cind(FALSE);
+        break;
+
+    case BTA_HF_CLIENT_AT_CIND:
+        bta_hf_client_send_at_cind(TRUE);
+        break;
+
+    case BTA_HF_CLIENT_AT_CIND_STATUS:
+        bta_hf_client_send_at_cmer(TRUE);
+        break;
+
+    case BTA_HF_CLIENT_AT_CMER:
+        if (bta_hf_client_cb.scb.peer_features & BTA_HF_CLIENT_PEER_FEAT_3WAY
+               && bta_hf_client_cb.scb.features & BTA_HF_CLIENT_FEAT_3WAY)
+        {
+            bta_hf_client_send_at_chld('?', 0);
+        }
+        else
+        {
+            bta_hf_client_svc_conn_open(NULL);
+            send_post_slc_cmd();
+        }
+        break;
+
+    case BTA_HF_CLIENT_AT_CHLD:
+        bta_hf_client_svc_conn_open(NULL);
+        send_post_slc_cmd();
+        break;
+
+    default:
+        /* If happen there is a bug in SLC creation procedure... */
+        APPL_TRACE_ERROR("HFPClient: Failed to create SLCdue to unexpected AT command, disconnecting (%u)",
+                            bta_hf_client_cb.scb.at_cb.current_cmd);
+
+        bta_hf_client_sm_execute(BTA_HF_CLIENT_API_CLOSE_EVT, NULL);
+        break;
+    }
+}
+
+#if BTA_HF_CLIENT_DEBUG == TRUE
+
+#ifndef CASE_RETURN_STR
+#define CASE_RETURN_STR(const) case const: return #const;
+#endif
+
+static char *bta_hf_client_evt_str(UINT16 event)
+{
+    switch (event)
+    {
+    CASE_RETURN_STR(BTA_HF_CLIENT_API_REGISTER_EVT)
+    CASE_RETURN_STR(BTA_HF_CLIENT_API_DEREGISTER_EVT)
+    CASE_RETURN_STR(BTA_HF_CLIENT_API_OPEN_EVT)
+    CASE_RETURN_STR(BTA_HF_CLIENT_API_CLOSE_EVT)
+    CASE_RETURN_STR(BTA_HF_CLIENT_API_AUDIO_OPEN_EVT)
+    CASE_RETURN_STR(BTA_HF_CLIENT_API_AUDIO_CLOSE_EVT)
+    CASE_RETURN_STR(BTA_HF_CLIENT_RFC_OPEN_EVT)
+    CASE_RETURN_STR(BTA_HF_CLIENT_RFC_CLOSE_EVT)
+    CASE_RETURN_STR(BTA_HF_CLIENT_RFC_SRV_CLOSE_EVT)
+    CASE_RETURN_STR(BTA_HF_CLIENT_RFC_DATA_EVT)
+    CASE_RETURN_STR(BTA_HF_CLIENT_DISC_ACP_RES_EVT)
+    CASE_RETURN_STR(BTA_HF_CLIENT_DISC_INT_RES_EVT)
+    CASE_RETURN_STR(BTA_HF_CLIENT_DISC_OK_EVT)
+    CASE_RETURN_STR(BTA_HF_CLIENT_DISC_FAIL_EVT)
+    CASE_RETURN_STR(BTA_HF_CLIENT_API_ENABLE_EVT)
+    CASE_RETURN_STR(BTA_HF_CLIENT_API_DISABLE_EVT)
+    CASE_RETURN_STR(BTA_HF_CLIENT_SCO_OPEN_EVT)
+    CASE_RETURN_STR(BTA_HF_CLIENT_SCO_CLOSE_EVT)
+    CASE_RETURN_STR(BTA_HF_CLIENT_SEND_AT_CMD_EVT)
+    default:
+        return "Unknown HF Client Event";
+    }
+}
+
+static char *bta_hf_client_state_str(UINT8 state)
+{
+    switch (state)
+    {
+    CASE_RETURN_STR(BTA_HF_CLIENT_INIT_ST)
+    CASE_RETURN_STR(BTA_HF_CLIENT_OPENING_ST)
+    CASE_RETURN_STR(BTA_HF_CLIENT_OPEN_ST)
+    CASE_RETURN_STR(BTA_HF_CLIENT_CLOSING_ST)
+    default:
+        return "Unknown HF Client State";
+    }
+}
+#endif
diff --git a/rtkbt/code/bt/bta/hf_client/bta_hf_client_rfc.c b/rtkbt/code/bt/bta/hf_client/bta_hf_client_rfc.c
new file mode 100755
index 0000000..dc422ae
--- /dev/null
+++ b/rtkbt/code/bt/bta/hf_client/bta_hf_client_rfc.c
@@ -0,0 +1,258 @@
+/******************************************************************************
+ *
+ *  Copyright (c) 2014 The Android Open Source Project
+ *  Copyright (C) 2004-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains the audio gateway functions controlling the RFCOMM
+ *  connections.
+ *
+ ******************************************************************************/
+
+#include <string.h>
+#include "bta_api.h"
+#include "bta_hf_client_int.h"
+#include "port_api.h"
+#include "bt_utils.h"
+
+/*******************************************************************************
+**
+** Function         bta_hf_client_port_cback
+**
+** Description      RFCOMM Port callback
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_hf_client_port_cback(UINT32 code, UINT16 port_handle)
+{
+    UNUSED(code);
+
+    /* ignore port events for port handles other than connected handle */
+    if (port_handle != bta_hf_client_cb.scb.conn_handle)
+    {
+        APPL_TRACE_DEBUG("bta_hf_client_port_cback ignoring handle:%d conn_handle = %d",
+                          port_handle, bta_hf_client_cb.scb.conn_handle);
+        return;
+    }
+
+    BT_HDR *p_buf = (BT_HDR *)osi_malloc(sizeof(BT_HDR));
+    p_buf->event = BTA_HF_CLIENT_RFC_DATA_EVT;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         bta_hf_client_mgmt_cback
+**
+** Description      RFCOMM management callback
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_hf_client_mgmt_cback(UINT32 code, UINT16 port_handle)
+{
+    UINT16                  event;
+
+    APPL_TRACE_DEBUG("bta_hf_client_mgmt_cback : code = %d, port_handle = %d, conn_handle = %d, serv_handle = %d",
+                        code, port_handle, bta_hf_client_cb.scb.conn_handle, bta_hf_client_cb.scb.serv_handle);
+
+    /* ignore close event for port handles other than connected handle */
+    if ((code != PORT_SUCCESS) && (port_handle != bta_hf_client_cb.scb.conn_handle))
+    {
+        APPL_TRACE_DEBUG("bta_hf_client_mgmt_cback ignoring handle:%d", port_handle);
+        return;
+    }
+
+    if (code == PORT_SUCCESS)
+    {
+        if ((bta_hf_client_cb.scb.conn_handle && (port_handle == bta_hf_client_cb.scb.conn_handle)) || /* outgoing connection */
+                (port_handle == bta_hf_client_cb.scb.serv_handle))                       /* incoming connection */
+        {
+            event = BTA_HF_CLIENT_RFC_OPEN_EVT;
+        }
+        else
+        {
+            APPL_TRACE_ERROR ("bta_hf_client_mgmt_cback: PORT_SUCCESS, ignoring handle = %d", port_handle);
+            return;
+        }
+    }
+    /* distinguish server close events */
+    else if (port_handle == bta_hf_client_cb.scb.conn_handle)
+    {
+        event = BTA_HF_CLIENT_RFC_CLOSE_EVT;
+    }
+    else
+    {
+        event = BTA_HF_CLIENT_RFC_SRV_CLOSE_EVT;
+    }
+
+    tBTA_HF_CLIENT_RFC *p_buf =
+        (tBTA_HF_CLIENT_RFC *)osi_malloc(sizeof(tBTA_HF_CLIENT_RFC));
+    p_buf->hdr.event = event;
+    p_buf->port_handle = port_handle;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         bta_hf_client_setup_port
+**
+** Description      Setup RFCOMM port for use by HF Client.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hf_client_setup_port(UINT16 handle)
+{
+    PORT_SetEventMask(handle, PORT_EV_RXCHAR);
+    PORT_SetEventCallback(handle, bta_hf_client_port_cback);
+}
+
+/*******************************************************************************
+**
+** Function         bta_hf_client_start_server
+**
+** Description      Setup RFCOMM server for use by HF Client.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hf_client_start_server(void)
+{
+    int port_status;
+
+    if (bta_hf_client_cb.scb.serv_handle > 0)
+    {
+        APPL_TRACE_DEBUG("%s already started, handle: %d", __FUNCTION__, bta_hf_client_cb.scb.serv_handle);
+        return;
+    }
+
+    BTM_SetSecurityLevel(FALSE, "", BTM_SEC_SERVICE_HF_HANDSFREE, bta_hf_client_cb.scb.serv_sec_mask,
+        BT_PSM_RFCOMM, BTM_SEC_PROTO_RFCOMM, bta_hf_client_cb.scn);
+
+    port_status =  RFCOMM_CreateConnection(UUID_SERVCLASS_HF_HANDSFREE, bta_hf_client_cb.scn,
+        TRUE, BTA_HF_CLIENT_MTU, (UINT8 *) bd_addr_any, &(bta_hf_client_cb.scb.serv_handle),
+        bta_hf_client_mgmt_cback);
+
+    if (port_status  == PORT_SUCCESS)
+    {
+        bta_hf_client_setup_port(bta_hf_client_cb.scb.serv_handle);
+    }
+    else
+    {
+        /* TODO: can we handle this better? */
+        APPL_TRACE_DEBUG("bta_hf_client_start_server: RFCOMM_CreateConnection returned error:%d", port_status);
+    }
+
+    APPL_TRACE_DEBUG("bta_hf_client_start_server handle: %d", bta_hf_client_cb.scb.serv_handle);
+}
+
+/*******************************************************************************
+**
+** Function         bta_hf_client_close_server
+**
+** Description      Close RFCOMM server port for use by HF Client.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hf_client_close_server(void)
+{
+    APPL_TRACE_DEBUG("%s %d", __FUNCTION__, bta_hf_client_cb.scb.serv_handle);
+
+    if (bta_hf_client_cb.scb.serv_handle == 0)
+    {
+        APPL_TRACE_DEBUG("%s already stopped", __FUNCTION__);
+        return;
+    }
+
+    RFCOMM_RemoveServer(bta_hf_client_cb.scb.serv_handle);
+    bta_hf_client_cb.scb.serv_handle = 0;
+}
+
+/*******************************************************************************
+**
+** Function         bta_hf_client_rfc_do_open
+**
+** Description      Open an RFCOMM connection to the peer device.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hf_client_rfc_do_open(tBTA_HF_CLIENT_DATA *p_data)
+{
+    BTM_SetSecurityLevel(TRUE, "", BTM_SEC_SERVICE_HF_HANDSFREE,
+                            bta_hf_client_cb.scb.cli_sec_mask, BT_PSM_RFCOMM,
+                            BTM_SEC_PROTO_RFCOMM, bta_hf_client_cb.scb.peer_scn);
+
+    if (RFCOMM_CreateConnection(UUID_SERVCLASS_HF_HANDSFREE, bta_hf_client_cb.scb.peer_scn,
+            FALSE, BTA_HF_CLIENT_MTU, bta_hf_client_cb.scb.peer_addr, &(bta_hf_client_cb.scb.conn_handle),
+            bta_hf_client_mgmt_cback) == PORT_SUCCESS)
+    {
+        bta_hf_client_setup_port(bta_hf_client_cb.scb.conn_handle);
+        APPL_TRACE_DEBUG("bta_hf_client_rfc_do_open : conn_handle = %d", bta_hf_client_cb.scb.conn_handle);
+    }
+    /* RFCOMM create connection failed; send ourselves RFCOMM close event */
+    else
+    {
+        bta_hf_client_sm_execute(BTA_HF_CLIENT_RFC_CLOSE_EVT, p_data);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_hf_client_rfc_do_close
+**
+** Description      Close RFCOMM connection.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hf_client_rfc_do_close(tBTA_HF_CLIENT_DATA *p_data)
+{
+    UNUSED(p_data);
+
+    if (bta_hf_client_cb.scb.conn_handle) {
+        RFCOMM_RemoveConnection(bta_hf_client_cb.scb.conn_handle);
+    } else {
+        /* Close API was called while HF Client is in Opening state.        */
+        /* Need to trigger the state machine to send callback to the app    */
+        /* and move back to INIT state.                                     */
+        tBTA_HF_CLIENT_RFC *p_buf =
+            (tBTA_HF_CLIENT_RFC *)osi_malloc(sizeof(tBTA_HF_CLIENT_RFC));
+        p_buf->hdr.event = BTA_HF_CLIENT_RFC_CLOSE_EVT;
+        bta_sys_sendmsg(p_buf);
+
+        /* Cancel SDP if it had been started. */
+        if(bta_hf_client_cb.scb.p_disc_db)
+        {
+            (void)SDP_CancelServiceSearch (bta_hf_client_cb.scb.p_disc_db);
+            bta_hf_client_free_db(NULL);
+        }
+    }
+}
diff --git a/rtkbt/code/bt/bta/hf_client/bta_hf_client_sco.c b/rtkbt/code/bt/bta/hf_client/bta_hf_client_sco.c
new file mode 100755
index 0000000..129dc9e
--- /dev/null
+++ b/rtkbt/code/bt/bta/hf_client/bta_hf_client_sco.c
@@ -0,0 +1,725 @@
+/******************************************************************************
+ *
+ *  Copyright (c) 2014 The Android Open Source Project
+ *  Copyright (C) 2004-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#include "bta_hf_client_int.h"
+#include <bt_trace.h>
+#include <string.h>
+#include "bt_utils.h"
+
+#define BTA_HF_CLIENT_NO_EDR_ESCO  (BTM_SCO_PKT_TYPES_MASK_NO_2_EV3 | \
+                                    BTM_SCO_PKT_TYPES_MASK_NO_3_EV3 | \
+                                    BTM_SCO_PKT_TYPES_MASK_NO_2_EV5 | \
+                                    BTM_SCO_PKT_TYPES_MASK_NO_3_EV5)
+
+static const tBTM_ESCO_PARAMS bta_hf_client_esco_params[] = {
+        /* SCO CVSD */
+        {
+                .rx_bw = BTM_64KBITS_RATE,
+                .tx_bw = BTM_64KBITS_RATE,
+                .max_latency = 10,
+                .voice_contfmt = BTM_VOICE_SETTING_CVSD,
+                .packet_types = (BTM_SCO_LINK_ONLY_MASK          |
+                                 BTM_SCO_PKT_TYPES_MASK_NO_2_EV3 |
+                                 BTM_SCO_PKT_TYPES_MASK_NO_3_EV3 |
+                                 BTM_SCO_PKT_TYPES_MASK_NO_2_EV5 |
+                                 BTM_SCO_PKT_TYPES_MASK_NO_3_EV5),
+                 .retrans_effort = BTM_ESCO_RETRANS_POWER,
+        },
+        /* ESCO CVSD */
+        {
+                .rx_bw = BTM_64KBITS_RATE,
+                .tx_bw = BTM_64KBITS_RATE,
+                .max_latency = 10,
+                .voice_contfmt = BTM_VOICE_SETTING_CVSD,
+                /* Allow controller to use all types available except 5-slot EDR */
+                .packet_types = (BTM_SCO_LINK_ALL_PKT_MASK |
+                                 BTM_SCO_PKT_TYPES_MASK_NO_2_EV5 |
+                                 BTM_SCO_PKT_TYPES_MASK_NO_3_EV5),
+                .retrans_effort = BTM_ESCO_RETRANS_POWER,
+        },
+        /* ESCO mSBC */
+        {
+                .rx_bw = BTM_64KBITS_RATE,
+                .tx_bw = BTM_64KBITS_RATE,
+                .max_latency = 13,
+                .voice_contfmt = BTM_VOICE_SETTING_TRANS,
+                /* Packet Types : EV3 + 2-EV3               */
+                .packet_types = (BTM_SCO_PKT_TYPES_MASK_EV3  |
+                                 BTM_SCO_PKT_TYPES_MASK_NO_3_EV3 |
+                                 BTM_SCO_PKT_TYPES_MASK_NO_2_EV5 |
+                                 BTM_SCO_PKT_TYPES_MASK_NO_3_EV5),
+                .retrans_effort = BTM_ESCO_RETRANS_QUALITY,
+        }
+};
+
+enum
+{
+    BTA_HF_CLIENT_SCO_LISTEN_E,
+    BTA_HF_CLIENT_SCO_OPEN_E,          /* open request */
+    BTA_HF_CLIENT_SCO_CLOSE_E,         /* close request */
+    BTA_HF_CLIENT_SCO_SHUTDOWN_E,      /* shutdown request */
+    BTA_HF_CLIENT_SCO_CONN_OPEN_E,     /* sco opened */
+    BTA_HF_CLIENT_SCO_CONN_CLOSE_E,    /* sco closed */
+};
+
+/*******************************************************************************
+**
+** Function         bta_hf_client_remove_sco
+**
+** Description      Removes the specified SCO from the system.
+**                  If only_active is TRUE, then SCO is only removed if connected
+**
+** Returns          BOOLEAN   - TRUE if Sco removal was started
+**
+*******************************************************************************/
+static BOOLEAN bta_hf_client_sco_remove(BOOLEAN only_active)
+{
+    BOOLEAN     removed_started = FALSE;
+    tBTM_STATUS status;
+
+    APPL_TRACE_DEBUG("%s %d", __FUNCTION__, only_active);
+
+    if (bta_hf_client_cb.scb.sco_idx != BTM_INVALID_SCO_INDEX)
+    {
+        status = BTM_RemoveSco(bta_hf_client_cb.scb.sco_idx);
+
+        APPL_TRACE_DEBUG("%s idx 0x%04x, status:0x%x", __FUNCTION__, bta_hf_client_cb.scb.sco_idx, status);
+
+        if (status == BTM_CMD_STARTED)
+        {
+            removed_started = TRUE;
+        }
+        /* If no connection reset the sco handle */
+        else if ( (status == BTM_SUCCESS) || (status == BTM_UNKNOWN_ADDR) )
+        {
+            bta_hf_client_cb.scb.sco_idx = BTM_INVALID_SCO_INDEX;
+        }
+    }
+    return removed_started;
+}
+
+/*******************************************************************************
+**
+** Function         bta_hf_client_cback_sco
+**
+** Description      Call application callback function with SCO event.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hf_client_cback_sco(UINT8 event)
+{
+    tBTA_HF_CLIENT    evt;
+
+    memset(&evt, 0, sizeof(evt));
+
+    /* call app cback */
+    (*bta_hf_client_cb.p_cback)(event, (tBTA_HF_CLIENT *) &evt);
+}
+
+/*******************************************************************************
+**
+** Function         bta_hf_client_sco_conn_rsp
+**
+** Description      Process the SCO connection request
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_hf_client_sco_conn_rsp(tBTM_ESCO_CONN_REQ_EVT_DATA *p_data)
+{
+    tBTM_ESCO_PARAMS    resp;
+    UINT8               hci_status = HCI_SUCCESS;
+
+    APPL_TRACE_DEBUG("%s", __FUNCTION__);
+
+    if (bta_hf_client_cb.scb.sco_state == BTA_HF_CLIENT_SCO_LISTEN_ST)
+    {
+        if (p_data->link_type == BTM_LINK_TYPE_SCO)
+        {
+            resp = bta_hf_client_esco_params[0];
+        }
+        else
+        {
+            resp = bta_hf_client_esco_params[bta_hf_client_cb.scb.negotiated_codec];
+        }
+
+        /* tell sys to stop av if any */
+        bta_sys_sco_use(BTA_ID_HS, 1, bta_hf_client_cb.scb.peer_addr);
+    }
+    else
+    {
+        hci_status = HCI_ERR_HOST_REJECT_DEVICE;
+    }
+
+    BTM_EScoConnRsp(p_data->sco_inx, hci_status, &resp);
+}
+
+/*******************************************************************************
+**
+** Function         bta_hf_client_sco_connreq_cback
+**
+** Description      BTM eSCO connection requests and eSCO change requests
+**                  Only the connection requests are processed by BTA.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_hf_client_esco_connreq_cback(tBTM_ESCO_EVT event, tBTM_ESCO_EVT_DATA *p_data)
+{
+    APPL_TRACE_DEBUG("%s %d", __FUNCTION__, event);
+
+    if (event != BTM_ESCO_CONN_REQ_EVT)
+    {
+        return;
+    }
+
+    /* TODO check remote bdaddr, should allow connect only from device with
+     * active SLC  */
+
+    bta_hf_client_cb.scb.sco_idx = p_data->conn_evt.sco_inx;
+
+    bta_hf_client_sco_conn_rsp(&p_data->conn_evt);
+
+    bta_hf_client_cb.scb.sco_state = BTA_HF_CLIENT_SCO_OPENING_ST;
+}
+
+/*******************************************************************************
+**
+** Function         bta_hf_client_sco_conn_cback
+**
+** Description      BTM SCO connection callback.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_hf_client_sco_conn_cback(UINT16 sco_idx)
+{
+    UINT8 *rem_bd;
+
+    APPL_TRACE_DEBUG("%s %d", __FUNCTION__, sco_idx);
+
+    rem_bd = BTM_ReadScoBdAddr(sco_idx);
+
+    if (rem_bd && bdcmp(bta_hf_client_cb.scb.peer_addr, rem_bd) == 0 &&
+            bta_hf_client_cb.scb.svc_conn && bta_hf_client_cb.scb.sco_idx == sco_idx)
+    {
+        BT_HDR *p_buf = (BT_HDR *)osi_malloc(sizeof(BT_HDR));
+        p_buf->event = BTA_HF_CLIENT_SCO_OPEN_EVT;
+        p_buf->layer_specific = bta_hf_client_cb.scb.conn_handle;
+        bta_sys_sendmsg(p_buf);
+    }
+    /* no match found; disconnect sco, init sco variables */
+    else
+    {
+        bta_hf_client_cb.scb.sco_state = BTA_HF_CLIENT_SCO_SHUTDOWN_ST;
+        BTM_RemoveSco(sco_idx);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_hf_client_sco_disc_cback
+**
+** Description      BTM SCO disconnection callback.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_hf_client_sco_disc_cback(UINT16 sco_idx)
+{
+    APPL_TRACE_DEBUG("%s %d", __func__, sco_idx);
+
+    if (bta_hf_client_cb.scb.sco_idx == sco_idx) {
+        BT_HDR *p_buf = (BT_HDR *)osi_malloc(sizeof(BT_HDR));
+        p_buf->event = BTA_HF_CLIENT_SCO_CLOSE_EVT;
+        p_buf->layer_specific = bta_hf_client_cb.scb.conn_handle;;
+        bta_sys_sendmsg(p_buf);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_hf_client_create_sco
+**
+** Description
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_hf_client_sco_create(BOOLEAN is_orig)
+{
+    tBTM_STATUS       status;
+    UINT8            *p_bd_addr = NULL;
+    tBTM_ESCO_PARAMS params;
+
+    APPL_TRACE_DEBUG("%s %d", __FUNCTION__, is_orig);
+
+    /* Make sure this sco handle is not already in use */
+    if (bta_hf_client_cb.scb.sco_idx != BTM_INVALID_SCO_INDEX)
+    {
+        APPL_TRACE_WARNING("%s: Index 0x%04x already in use", __FUNCTION__,
+                            bta_hf_client_cb.scb.sco_idx);
+        return;
+    }
+
+    params = bta_hf_client_esco_params[1];
+
+    /* if initiating set current scb and peer bd addr */
+    if (is_orig)
+    {
+        /* Attempt to use eSCO if remote host supports HFP >= 1.5 */
+        if (bta_hf_client_cb.scb.peer_version >= HFP_VERSION_1_5 && !bta_hf_client_cb.scb.retry_with_sco_only)
+        {
+            BTM_SetEScoMode(BTM_LINK_TYPE_ESCO, &params);
+            /* If ESCO or EDR ESCO, retry with SCO only in case of failure */
+            if((params.packet_types & BTM_ESCO_LINK_ONLY_MASK)
+               ||!((params.packet_types & ~(BTM_ESCO_LINK_ONLY_MASK | BTM_SCO_LINK_ONLY_MASK)) ^ BTA_HF_CLIENT_NO_EDR_ESCO))
+            {
+                bta_hf_client_cb.scb.retry_with_sco_only = TRUE;
+                APPL_TRACE_API("Setting retry_with_sco_only to TRUE");
+            }
+        }
+        else
+        {
+            if(bta_hf_client_cb.scb.retry_with_sco_only)
+                APPL_TRACE_API("retrying with SCO only");
+            bta_hf_client_cb.scb.retry_with_sco_only = FALSE;
+
+            BTM_SetEScoMode(BTM_LINK_TYPE_SCO, &params);
+        }
+
+        /* tell sys to stop av if any */
+        bta_sys_sco_use(BTA_ID_HS, 1, bta_hf_client_cb.scb.peer_addr);
+    }
+    else
+    {
+        bta_hf_client_cb.scb.retry_with_sco_only = FALSE;
+    }
+
+    p_bd_addr = bta_hf_client_cb.scb.peer_addr;
+
+    status = BTM_CreateSco(p_bd_addr, is_orig, params.packet_types,
+                           &bta_hf_client_cb.scb.sco_idx, bta_hf_client_sco_conn_cback,
+                           bta_hf_client_sco_disc_cback);
+    if (status == BTM_CMD_STARTED && !is_orig)
+    {
+        if(!BTM_RegForEScoEvts(bta_hf_client_cb.scb.sco_idx, bta_hf_client_esco_connreq_cback))
+            APPL_TRACE_DEBUG("%s SCO registration success", __FUNCTION__);
+    }
+
+    APPL_TRACE_API("%s: orig %d, inx 0x%04x, status 0x%x, pkt types 0x%04x",
+                      __FUNCTION__, is_orig, bta_hf_client_cb.scb.sco_idx,
+                      status, params.packet_types);
+}
+
+
+/*******************************************************************************
+**
+** Function         bta_hf_client_sco_event
+**
+** Description      Handle SCO events
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_hf_client_sco_event(UINT8 event)
+{
+    APPL_TRACE_DEBUG("%s state: %d event: %d", __FUNCTION__,
+                        bta_hf_client_cb.scb.sco_state, event);
+
+    switch (bta_hf_client_cb.scb.sco_state)
+    {
+        case BTA_HF_CLIENT_SCO_SHUTDOWN_ST:
+            switch (event)
+            {
+                case BTA_HF_CLIENT_SCO_LISTEN_E:
+                    /* create sco listen connection */
+                    bta_hf_client_sco_create(FALSE);
+                    bta_hf_client_cb.scb.sco_state = BTA_HF_CLIENT_SCO_LISTEN_ST;
+                    break;
+
+                default:
+                    APPL_TRACE_WARNING("BTA_HF_CLIENT_SCO_SHUTDOWN_ST: Ignoring event %d", event);
+                    break;
+            }
+            break;
+
+        case BTA_HF_CLIENT_SCO_LISTEN_ST:
+            switch (event)
+            {
+                case BTA_HF_CLIENT_SCO_LISTEN_E:
+                    /* create sco listen connection (Additional channel) */
+                    bta_hf_client_sco_create(FALSE);
+                    break;
+
+                case BTA_HF_CLIENT_SCO_OPEN_E:
+                    /* remove listening connection */
+                    bta_hf_client_sco_remove(FALSE);
+
+                    /* create sco connection to peer */
+                    bta_hf_client_sco_create(TRUE);
+                    bta_hf_client_cb.scb.sco_state = BTA_HF_CLIENT_SCO_OPENING_ST;
+                    break;
+
+                case BTA_HF_CLIENT_SCO_SHUTDOWN_E:
+                    /* remove listening connection */
+                    bta_hf_client_sco_remove(FALSE);
+
+                    bta_hf_client_cb.scb.sco_state = BTA_HF_CLIENT_SCO_SHUTDOWN_ST;
+                    break;
+
+                case BTA_HF_CLIENT_SCO_CLOSE_E:
+                    /* remove listening connection */
+                    /* Ignore the event. We need to keep listening SCO for the active SLC */
+                    APPL_TRACE_WARNING("BTA_HF_CLIENT_SCO_LISTEN_ST: Ignoring event %d", event);
+                    break;
+
+                case BTA_HF_CLIENT_SCO_CONN_CLOSE_E:
+                    /* sco failed; create sco listen connection */
+                    bta_hf_client_sco_create(FALSE);
+                    bta_hf_client_cb.scb.sco_state = BTA_HF_CLIENT_SCO_LISTEN_ST;
+                    break;
+
+                default:
+                    APPL_TRACE_WARNING("BTA_HF_CLIENT_SCO_LISTEN_ST: Ignoring event %d", event);
+                    break;
+            }
+            break;
+
+        case BTA_HF_CLIENT_SCO_OPENING_ST:
+            switch (event)
+            {
+                case BTA_HF_CLIENT_SCO_CLOSE_E:
+                    bta_hf_client_cb.scb.sco_state = BTA_HF_CLIENT_SCO_OPEN_CL_ST;
+                    break;
+
+                case BTA_HF_CLIENT_SCO_SHUTDOWN_E:
+                    bta_hf_client_cb.scb.sco_state = BTA_HF_CLIENT_SCO_SHUTTING_ST;
+                    break;
+
+                case BTA_HF_CLIENT_SCO_CONN_OPEN_E:
+                    bta_hf_client_cb.scb.sco_state = BTA_HF_CLIENT_SCO_OPEN_ST;
+                    break;
+
+                case BTA_HF_CLIENT_SCO_CONN_CLOSE_E:
+                    /* sco failed; create sco listen connection */
+                    bta_hf_client_sco_create(FALSE);
+                    bta_hf_client_cb.scb.sco_state = BTA_HF_CLIENT_SCO_LISTEN_ST;
+                    break;
+
+                default:
+                    APPL_TRACE_WARNING("BTA_HF_CLIENT_SCO_OPENING_ST: Ignoring event %d", event);
+                    break;
+            }
+            break;
+
+        case BTA_HF_CLIENT_SCO_OPEN_CL_ST:
+            switch (event)
+            {
+                case BTA_HF_CLIENT_SCO_OPEN_E:
+                    bta_hf_client_cb.scb.sco_state = BTA_HF_CLIENT_SCO_OPENING_ST;
+                    break;
+
+                case BTA_HF_CLIENT_SCO_SHUTDOWN_E:
+                    bta_hf_client_cb.scb.sco_state = BTA_HF_CLIENT_SCO_SHUTTING_ST;
+                    break;
+
+                case BTA_HF_CLIENT_SCO_CONN_OPEN_E:
+                    /* close sco connection */
+                    bta_hf_client_sco_remove(TRUE);
+
+                    bta_hf_client_cb.scb.sco_state = BTA_HF_CLIENT_SCO_CLOSING_ST;
+                    break;
+
+                case BTA_HF_CLIENT_SCO_CONN_CLOSE_E:
+                    /* sco failed; create sco listen connection */
+
+                    bta_hf_client_cb.scb.sco_state = BTA_HF_CLIENT_SCO_LISTEN_ST;
+                    break;
+
+                default:
+                    APPL_TRACE_WARNING("BTA_HF_CLIENT_SCO_OPEN_CL_ST: Ignoring event %d", event);
+                    break;
+            }
+            break;
+
+        case BTA_HF_CLIENT_SCO_OPEN_ST:
+            switch (event)
+            {
+                case BTA_HF_CLIENT_SCO_CLOSE_E:
+                    /* close sco connection if active */
+                    if (bta_hf_client_sco_remove(TRUE))
+                    {
+                        bta_hf_client_cb.scb.sco_state = BTA_HF_CLIENT_SCO_CLOSING_ST;
+                    }
+                    break;
+
+                case BTA_HF_CLIENT_SCO_SHUTDOWN_E:
+                    /* remove all listening connections */
+                    bta_hf_client_sco_remove(FALSE);
+
+                    bta_hf_client_cb.scb.sco_state = BTA_HF_CLIENT_SCO_SHUTTING_ST;
+                    break;
+
+                case BTA_HF_CLIENT_SCO_CONN_CLOSE_E:
+                    /* peer closed sco; create sco listen connection */
+                    bta_hf_client_sco_create(FALSE);
+                    bta_hf_client_cb.scb.sco_state = BTA_HF_CLIENT_SCO_LISTEN_ST;
+                    break;
+
+                default:
+                    APPL_TRACE_WARNING("BTA_HF_CLIENT_SCO_OPEN_ST: Ignoring event %d", event);
+                    break;
+            }
+            break;
+
+        case BTA_HF_CLIENT_SCO_CLOSING_ST:
+            switch (event)
+            {
+                case BTA_HF_CLIENT_SCO_OPEN_E:
+                    bta_hf_client_cb.scb.sco_state = BTA_HF_CLIENT_SCO_CLOSE_OP_ST;
+                    break;
+
+                case BTA_HF_CLIENT_SCO_SHUTDOWN_E:
+                    bta_hf_client_cb.scb.sco_state = BTA_HF_CLIENT_SCO_SHUTTING_ST;
+                    break;
+
+                case BTA_HF_CLIENT_SCO_CONN_CLOSE_E:
+                    /* peer closed sco; create sco listen connection */
+                    bta_hf_client_sco_create(FALSE);
+
+                    bta_hf_client_cb.scb.sco_state = BTA_HF_CLIENT_SCO_LISTEN_ST;
+                    break;
+
+                default:
+                    APPL_TRACE_WARNING("BTA_HF_CLIENT_SCO_CLOSING_ST: Ignoring event %d", event);
+                    break;
+            }
+            break;
+
+        case BTA_HF_CLIENT_SCO_CLOSE_OP_ST:
+            switch (event)
+            {
+                case BTA_HF_CLIENT_SCO_CLOSE_E:
+                    bta_hf_client_cb.scb.sco_state = BTA_HF_CLIENT_SCO_CLOSING_ST;
+                    break;
+
+                case BTA_HF_CLIENT_SCO_SHUTDOWN_E:
+                    bta_hf_client_cb.scb.sco_state = BTA_HF_CLIENT_SCO_SHUTTING_ST;
+                    break;
+
+                case BTA_HF_CLIENT_SCO_CONN_CLOSE_E:
+                    /* open sco connection */
+                    bta_hf_client_sco_create(TRUE);
+                    bta_hf_client_cb.scb.sco_state = BTA_HF_CLIENT_SCO_OPENING_ST;
+                    break;
+
+                default:
+                    APPL_TRACE_WARNING("BTA_HF_CLIENT_SCO_CLOSE_OP_ST: Ignoring event %d", event);
+                    break;
+            }
+            break;
+
+        case BTA_HF_CLIENT_SCO_SHUTTING_ST:
+            switch (event)
+            {
+                case BTA_HF_CLIENT_SCO_CONN_OPEN_E:
+                    /* close sco connection; wait for conn close event */
+                    bta_hf_client_sco_remove(TRUE);
+                    break;
+
+                case BTA_HF_CLIENT_SCO_CONN_CLOSE_E:
+                    bta_hf_client_cb.scb.sco_state = BTA_HF_CLIENT_SCO_SHUTDOWN_ST;
+                    break;
+
+                case BTA_HF_CLIENT_SCO_SHUTDOWN_E:
+                    bta_hf_client_cb.scb.sco_state = BTA_HF_CLIENT_SCO_SHUTDOWN_ST;
+                    break;
+
+                default:
+                    APPL_TRACE_WARNING("BTA_HF_CLIENT_SCO_SHUTTING_ST: Ignoring event %d", event);
+                    break;
+            }
+            break;
+
+        default:
+            break;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_hf_client_sco_listen
+**
+** Description      Initialize SCO listener
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hf_client_sco_listen(tBTA_HF_CLIENT_DATA *p_data)
+{
+    UNUSED(p_data);
+
+    APPL_TRACE_DEBUG("%s", __FUNCTION__);
+
+    bta_hf_client_sco_event(BTA_HF_CLIENT_SCO_LISTEN_E);
+}
+
+/*******************************************************************************
+**
+** Function         bta_hf_client_sco_shutdown
+**
+** Description
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hf_client_sco_shutdown(tBTA_HF_CLIENT_DATA *p_data)
+{
+    UNUSED(p_data);
+
+    APPL_TRACE_DEBUG("%s", __FUNCTION__);
+
+    bta_hf_client_sco_event(BTA_HF_CLIENT_SCO_SHUTDOWN_E);
+}
+
+/*******************************************************************************
+**
+** Function         bta_hf_client_sco_conn_open
+**
+** Description
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hf_client_sco_conn_open(tBTA_HF_CLIENT_DATA *p_data)
+{
+    UNUSED(p_data);
+
+    APPL_TRACE_DEBUG("%s", __FUNCTION__);
+
+    bta_hf_client_sco_event(BTA_HF_CLIENT_SCO_CONN_OPEN_E);
+
+    bta_sys_sco_open(BTA_ID_HS, 1, bta_hf_client_cb.scb.peer_addr);
+
+    if (bta_hf_client_cb.scb.negotiated_codec == BTM_SCO_CODEC_MSBC)
+    {
+        bta_hf_client_cback_sco(BTA_HF_CLIENT_AUDIO_MSBC_OPEN_EVT);
+    }
+    else
+    {
+        bta_hf_client_cback_sco(BTA_HF_CLIENT_AUDIO_OPEN_EVT);
+    }
+
+    bta_hf_client_cb.scb.retry_with_sco_only = FALSE;
+}
+
+/*******************************************************************************
+**
+** Function         bta_hf_client_sco_conn_close
+**
+** Description
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hf_client_sco_conn_close(tBTA_HF_CLIENT_DATA *p_data)
+{
+    APPL_TRACE_DEBUG("%s", __FUNCTION__);
+
+    /* clear current scb */
+    bta_hf_client_cb.scb.sco_idx = BTM_INVALID_SCO_INDEX;
+
+    /* retry_with_sco_only, will be set only when initiator
+    ** and HFClient is first trying to establish an eSCO connection */
+    if (bta_hf_client_cb.scb.retry_with_sco_only && bta_hf_client_cb.scb.svc_conn)
+    {
+        bta_hf_client_sco_create(TRUE);
+    }
+    else
+    {
+        bta_hf_client_sco_event(BTA_HF_CLIENT_SCO_CONN_CLOSE_E);
+
+        bta_sys_sco_close(BTA_ID_HS, 1, bta_hf_client_cb.scb.peer_addr);
+
+        bta_sys_sco_unuse(BTA_ID_HS, 1, bta_hf_client_cb.scb.peer_addr);
+
+        /* call app callback */
+        bta_hf_client_cback_sco(BTA_HF_CLIENT_AUDIO_CLOSE_EVT);
+
+        if (bta_hf_client_cb.scb.sco_close_rfc == TRUE)
+        {
+            bta_hf_client_cb.scb.sco_close_rfc = FALSE;
+            bta_hf_client_rfc_do_close(p_data);
+        }
+    }
+    bta_hf_client_cb.scb.retry_with_sco_only = FALSE;
+}
+
+/*******************************************************************************
+**
+** Function         bta_hf_client_sco_open
+**
+** Description
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hf_client_sco_open(tBTA_HF_CLIENT_DATA *p_data)
+{
+    UNUSED(p_data);
+
+    APPL_TRACE_DEBUG("%s", __FUNCTION__);
+
+    bta_hf_client_sco_event(BTA_HF_CLIENT_SCO_OPEN_E);
+}
+
+/*******************************************************************************
+**
+** Function         bta_hf_client_sco_close
+**
+** Description
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hf_client_sco_close(tBTA_HF_CLIENT_DATA *p_data)
+{
+    UNUSED(p_data);
+
+    APPL_TRACE_DEBUG("%s  0x%x", __FUNCTION__, bta_hf_client_cb.scb.sco_idx);
+
+    if (bta_hf_client_cb.scb.sco_idx != BTM_INVALID_SCO_INDEX)
+    {
+        bta_hf_client_sco_event(BTA_HF_CLIENT_SCO_CLOSE_E);
+    }
+}
diff --git a/rtkbt/code/bt/bta/hf_client/bta_hf_client_sdp.c b/rtkbt/code/bt/bta/hf_client/bta_hf_client_sdp.c
new file mode 100755
index 0000000..822fe97
--- /dev/null
+++ b/rtkbt/code/bt/bta/hf_client/bta_hf_client_sdp.c
@@ -0,0 +1,370 @@
+/******************************************************************************
+ *
+ *  Copyright (c) 2014 The Android Open Source Project
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains the audio gateway functions performing SDP
+ *  operations.
+ *
+ ******************************************************************************/
+
+#include <string.h>
+#include "bta_api.h"
+#include "bta_sys.h"
+#include "bt_utils.h"
+#include "bta_hf_client_api.h"
+#include "bta_hf_client_int.h"
+
+/* Number of protocol elements in protocol element list. */
+#define BTA_HF_CLIENT_NUM_PROTO_ELEMS      2
+
+/* Number of elements in service class id list. */
+#define BTA_HF_CLIENT_NUM_SVC_ELEMS        2
+
+/*******************************************************************************
+**
+** Function         bta_hf_client_sdp_cback
+**
+** Description      SDP callback function.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_hf_client_sdp_cback(UINT16 status)
+{
+    UINT16 event;
+    tBTA_HF_CLIENT_DISC_RESULT *p_buf =
+        (tBTA_HF_CLIENT_DISC_RESULT *)osi_malloc(sizeof(tBTA_HF_CLIENT_DISC_RESULT));
+
+    APPL_TRACE_DEBUG("bta_hf_client_sdp_cback status:0x%x", status);
+
+    /* set event according to int/acp */
+    if (bta_hf_client_cb.scb.role == BTA_HF_CLIENT_ACP)
+        event = BTA_HF_CLIENT_DISC_ACP_RES_EVT;
+    else
+        event = BTA_HF_CLIENT_DISC_INT_RES_EVT;
+
+    p_buf->hdr.event = event;
+    p_buf->status = status;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/******************************************************************************
+**
+** Function         bta_hf_client_add_record
+**
+** Description      This function is called by a server application to add
+**                  HFP Client information to an SDP record.  Prior to
+**                  calling this function the application must call
+**                  SDP_CreateRecord() to create an SDP record.
+**
+** Returns          TRUE if function execution succeeded,
+**                  FALSE if function execution failed.
+**
+******************************************************************************/
+BOOLEAN bta_hf_client_add_record(char *p_service_name, UINT8 scn,
+                          tBTA_HF_CLIENT_FEAT features, UINT32 sdp_handle)
+{
+    tSDP_PROTOCOL_ELEM  proto_elem_list[BTA_HF_CLIENT_NUM_PROTO_ELEMS];
+    UINT16              svc_class_id_list[BTA_HF_CLIENT_NUM_SVC_ELEMS];
+    UINT16              browse_list[] = {UUID_SERVCLASS_PUBLIC_BROWSE_GROUP};
+    UINT16              version;
+    UINT16              profile_uuid;
+    BOOLEAN             result = TRUE;
+    UINT8               buf[2];
+    UINT16              sdp_features = 0;
+
+    APPL_TRACE_DEBUG("bta_hf_client_add_record");
+
+    memset( proto_elem_list, 0 , BTA_HF_CLIENT_NUM_PROTO_ELEMS*sizeof(tSDP_PROTOCOL_ELEM));
+
+    /* add the protocol element sequence */
+    proto_elem_list[0].protocol_uuid = UUID_PROTOCOL_L2CAP;
+    proto_elem_list[0].num_params = 0;
+    proto_elem_list[1].protocol_uuid = UUID_PROTOCOL_RFCOMM;
+    proto_elem_list[1].num_params = 1;
+    proto_elem_list[1].params[0] = scn;
+    result &= SDP_AddProtocolList(sdp_handle, BTA_HF_CLIENT_NUM_PROTO_ELEMS, proto_elem_list);
+
+    /* add service class id list */
+    svc_class_id_list[0] = UUID_SERVCLASS_HF_HANDSFREE;
+    svc_class_id_list[1] = UUID_SERVCLASS_GENERIC_AUDIO;
+    result &= SDP_AddServiceClassIdList(sdp_handle, BTA_HF_CLIENT_NUM_SVC_ELEMS, svc_class_id_list);
+
+    /* add profile descriptor list */
+    profile_uuid = UUID_SERVCLASS_HF_HANDSFREE;
+    version = HFP_VERSION_1_6;
+
+    result &= SDP_AddProfileDescriptorList(sdp_handle, profile_uuid, version);
+
+    /* add service name */
+    if (p_service_name != NULL && p_service_name[0] != 0)
+    {
+        result &= SDP_AddAttribute(sdp_handle, ATTR_ID_SERVICE_NAME, TEXT_STR_DESC_TYPE,
+                    (UINT32)(strlen(p_service_name)+1), (UINT8 *) p_service_name);
+    }
+
+    /* add features */
+    if (features & BTA_HF_CLIENT_FEAT_ECNR)
+       sdp_features |= BTA_HF_CLIENT_FEAT_ECNR;
+
+    if (features & BTA_HF_CLIENT_FEAT_3WAY)
+       sdp_features |= BTA_HF_CLIENT_FEAT_3WAY;
+
+    if (features & BTA_HF_CLIENT_FEAT_CLI)
+       sdp_features |= BTA_HF_CLIENT_FEAT_CLI;
+
+    if (features & BTA_HF_CLIENT_FEAT_VREC)
+       sdp_features |= BTA_HF_CLIENT_FEAT_VREC;
+
+    if (features & BTA_HF_CLIENT_FEAT_VOL)
+       sdp_features |= BTA_HF_CLIENT_FEAT_VOL;
+
+    /* Codec bit position is different in SDP (bit 5) and in BRSF (bit 7) */
+    if (features & BTA_HF_CLIENT_FEAT_CODEC)
+       sdp_features |= 0x0020;
+
+    UINT16_TO_BE_FIELD(buf, sdp_features);
+    result &= SDP_AddAttribute(sdp_handle, ATTR_ID_SUPPORTED_FEATURES, UINT_DESC_TYPE, 2, buf);
+
+    /* add browse group list */
+    result &= SDP_AddUuidSequence(sdp_handle, ATTR_ID_BROWSE_GROUP_LIST, 1, browse_list);
+
+    return result;
+}
+
+/*******************************************************************************
+**
+** Function         bta_hf_client_create_record
+**
+** Description      Create SDP record for registered service.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hf_client_create_record(tBTA_HF_CLIENT_DATA *p_data)
+{
+    /* add sdp record if not already registered */
+    if (bta_hf_client_cb.sdp_handle == 0)
+    {
+        bta_hf_client_cb.sdp_handle = SDP_CreateRecord();
+        bta_hf_client_cb.scn = BTM_AllocateSCN();
+        bta_hf_client_add_record(p_data->api_register.name,
+                                 bta_hf_client_cb.scn,
+                                 p_data->api_register.features,
+                                 bta_hf_client_cb.sdp_handle);
+
+        bta_sys_add_uuid(UUID_SERVCLASS_HF_HANDSFREE);
+    }
+
+}
+
+/*******************************************************************************
+**
+** Function         bta_hf_client_del_record
+**
+** Description      Delete SDP record for registered service.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hf_client_del_record(tBTA_HF_CLIENT_DATA *p_data)
+{
+    UNUSED(p_data);
+
+    APPL_TRACE_DEBUG("bta_hf_client_del_record");
+
+    if (bta_hf_client_cb.sdp_handle != 0)
+    {
+        SDP_DeleteRecord(bta_hf_client_cb.sdp_handle);
+        bta_hf_client_cb.sdp_handle = 0;
+        BTM_FreeSCN(bta_hf_client_cb.scn);
+        BTM_SecClrService(BTM_SEC_SERVICE_HF_HANDSFREE);
+        bta_sys_remove_uuid(UUID_SERVCLASS_HF_HANDSFREE);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_hf_client_sdp_find_attr
+**
+** Description      Process SDP discovery results to find requested attribute
+**
+**
+** Returns          TRUE if results found, FALSE otherwise.
+**
+*******************************************************************************/
+BOOLEAN bta_hf_client_sdp_find_attr(void)
+{
+    tSDP_DISC_REC       *p_rec = NULL;
+    tSDP_DISC_ATTR      *p_attr;
+    tSDP_PROTOCOL_ELEM  pe;
+    BOOLEAN             result = FALSE;
+
+    bta_hf_client_cb.scb.peer_version = HFP_VERSION_1_1;   /* Default version */
+
+    /* loop through all records we found */
+    while (TRUE)
+    {
+        /* get next record; if none found, we're done */
+        if ((p_rec = SDP_FindServiceInDb(bta_hf_client_cb.scb.p_disc_db, UUID_SERVCLASS_AG_HANDSFREE, p_rec)) == NULL)
+        {
+            break;
+        }
+
+        /* get scn from proto desc list if initiator */
+        if (bta_hf_client_cb.scb.role == BTA_HF_CLIENT_INT)
+        {
+            if (SDP_FindProtocolListElemInRec(p_rec, UUID_PROTOCOL_RFCOMM, &pe))
+            {
+                bta_hf_client_cb.scb.peer_scn = (UINT8) pe.params[0];
+            }
+            else
+            {
+                continue;
+            }
+        }
+
+        /* get profile version (if failure, version parameter is not updated) */
+        SDP_FindProfileVersionInRec(p_rec, UUID_SERVCLASS_HF_HANDSFREE, &bta_hf_client_cb.scb.peer_version);
+
+        /* get features */
+        if ((p_attr = SDP_FindAttributeInRec(p_rec, ATTR_ID_SUPPORTED_FEATURES)) != NULL)
+        {
+            /* Found attribute. Get value. */
+            /* There might be race condition between SDP and BRSF.  */
+            /* Do not update if we already received BRSF.           */
+            if (bta_hf_client_cb.scb.peer_features == 0)
+            {
+                bta_hf_client_cb.scb.peer_features = p_attr->attr_value.v.u16;
+
+                /* SDP and BRSF WBS bit are different, correct it if set */
+                if (bta_hf_client_cb.scb.peer_features & 0x0020)
+                {
+                    bta_hf_client_cb.scb.peer_features &= ~0x0020;
+                    bta_hf_client_cb.scb.peer_features |= BTA_HF_CLIENT_PEER_CODEC;
+                }
+
+                /* get network for ability to reject calls */
+                if ((p_attr = SDP_FindAttributeInRec(p_rec, ATTR_ID_NETWORK)) != NULL)
+                {
+                    if (p_attr->attr_value.v.u16 == 0x01)
+                    {
+                        bta_hf_client_cb.scb.peer_features |= BTA_HF_CLIENT_PEER_REJECT;
+                    }
+                }
+            }
+        }
+
+        /* found what we needed */
+        result = TRUE;
+        break;
+    }
+
+    APPL_TRACE_DEBUG("%s peer_version=0x%x peer_features=0x%x",
+                      __FUNCTION__, bta_hf_client_cb.scb.peer_version,
+                      bta_hf_client_cb.scb.peer_features);
+
+    return result;
+}
+
+/*******************************************************************************
+**
+** Function         bta_hf_client_do_disc
+**
+** Description      Do service discovery.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hf_client_do_disc(void)
+{
+    tSDP_UUID       uuid_list[2];
+    UINT16          num_uuid = 1;
+    UINT16          attr_list[4];
+    UINT8           num_attr;
+    BOOLEAN         db_inited = FALSE;
+
+    /* initiator; get proto list and features */
+    if (bta_hf_client_cb.scb.role == BTA_HF_CLIENT_INT)
+    {
+        attr_list[0] = ATTR_ID_SERVICE_CLASS_ID_LIST;
+        attr_list[1] = ATTR_ID_PROTOCOL_DESC_LIST;
+        attr_list[2] = ATTR_ID_BT_PROFILE_DESC_LIST;
+        attr_list[3] = ATTR_ID_SUPPORTED_FEATURES;
+        num_attr = 4;
+        uuid_list[0].uu.uuid16 = UUID_SERVCLASS_AG_HANDSFREE;
+    }
+    /* acceptor; get features */
+    else
+    {
+        attr_list[0] = ATTR_ID_SERVICE_CLASS_ID_LIST;
+        attr_list[1] = ATTR_ID_BT_PROFILE_DESC_LIST;
+        attr_list[2] = ATTR_ID_SUPPORTED_FEATURES;
+        num_attr = 3;
+        uuid_list[0].uu.uuid16 = UUID_SERVCLASS_AG_HANDSFREE;
+    }
+
+    /* allocate buffer for sdp database */
+    bta_hf_client_cb.scb.p_disc_db = (tSDP_DISCOVERY_DB *)osi_malloc(BT_DEFAULT_BUFFER_SIZE);
+
+    /* set up service discovery database; attr happens to be attr_list len */
+    uuid_list[0].len = LEN_UUID_16;
+    uuid_list[1].len = LEN_UUID_16;
+    db_inited = SDP_InitDiscoveryDb(bta_hf_client_cb.scb.p_disc_db,
+                                    BT_DEFAULT_BUFFER_SIZE, num_uuid,
+                                    uuid_list, num_attr, attr_list);
+
+    if (db_inited)
+    {
+        /*Service discovery not initiated */
+        db_inited = SDP_ServiceSearchAttributeRequest(bta_hf_client_cb.scb.peer_addr,
+                            bta_hf_client_cb.scb.p_disc_db, bta_hf_client_sdp_cback);
+    }
+
+    if (!db_inited)
+    {
+        /*free discover db */
+        bta_hf_client_free_db(NULL);
+        /* sent failed event */
+        bta_hf_client_sm_execute(BTA_HF_CLIENT_DISC_FAIL_EVT, NULL);
+    }
+
+}
+
+/*******************************************************************************
+**
+** Function         bta_hf_client_free_db
+**
+** Description      Free discovery database.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hf_client_free_db(tBTA_HF_CLIENT_DATA *p_data)
+{
+    UNUSED(p_data);
+    osi_free_and_reset((void **)&bta_hf_client_cb.scb.p_disc_db);
+}
diff --git a/rtkbt/code/bt/bta/hh/bta_hh_act.c b/rtkbt/code/bt/bta/hh/bta_hh_act.c
new file mode 100755
index 0000000..9c65351
--- /dev/null
+++ b/rtkbt/code/bt/bta/hh/bta_hh_act.c
@@ -0,0 +1,1337 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2005-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains the HID host action functions.
+ *
+ ******************************************************************************/
+
+#include "bt_target.h"
+
+#if defined(BTA_HH_INCLUDED) && (BTA_HH_INCLUDED == TRUE)
+
+#include <string.h>
+
+#include "bta_sys.h"
+#include "btm_api.h"
+#include "l2c_api.h"
+#include "bta_hh_int.h"
+#include "bta_hh_co.h"
+#include "utl.h"
+
+/*****************************************************************************
+**  Constants
+*****************************************************************************/
+
+
+/*****************************************************************************
+**  Local Function prototypes
+*****************************************************************************/
+static void bta_hh_cback (UINT8 dev_handle, BD_ADDR addr, UINT8 event,
+                            UINT32 data, BT_HDR *pdata);
+static tBTA_HH_STATUS bta_hh_get_trans_status(UINT32 result);
+
+#if BTA_HH_DEBUG
+static char* bta_hh_get_w4_event(UINT16 event);
+static char * bta_hh_hid_event_name(UINT16 event);
+#endif
+
+/*****************************************************************************
+**  Action Functions
+*****************************************************************************/
+/*******************************************************************************
+**
+** Function         bta_hh_api_enable
+**
+** Description      Perform necessary operations to enable HID host.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hh_api_enable(tBTA_HH_DATA *p_data)
+{
+    tBTA_HH_STATUS      status = BTA_HH_ERR;
+    UINT8               xx;
+
+    /* initialize BTE HID */
+    HID_HostInit();
+
+    memset(&bta_hh_cb, 0, sizeof(tBTA_HH_CB));
+
+    HID_HostSetSecurityLevel("", p_data->api_enable.sec_mask);
+
+    /* Register with L2CAP */
+    if ( HID_HostRegister (bta_hh_cback) == HID_SUCCESS)
+    {
+        /* store parameters */
+        bta_hh_cb.p_cback = p_data->api_enable.p_cback;
+
+        status = BTA_HH_OK;
+        /* initialize device CB */
+        for (xx = 0; xx < BTA_HH_MAX_DEVICE; xx ++)
+        {
+            bta_hh_cb.kdev[xx].state        = BTA_HH_IDLE_ST;
+            bta_hh_cb.kdev[xx].hid_handle   = BTA_HH_INVALID_HANDLE;
+            bta_hh_cb.kdev[xx].index        = xx;
+        }
+
+        /* initialize control block map */
+        for (xx = 0; xx < BTA_HH_MAX_KNOWN; xx ++)
+            bta_hh_cb.cb_index[xx]          = BTA_HH_IDX_INVALID;
+    }
+
+#if (BTA_HH_LE_INCLUDED == TRUE)
+    if (status == BTA_HH_OK)
+    {
+        bta_hh_le_enable();
+    }
+    else
+#endif
+        /* signal BTA call back event */
+        (* bta_hh_cb.p_cback)(BTA_HH_ENABLE_EVT, (tBTA_HH *)&status);
+}
+/*******************************************************************************
+**
+** Function         bta_hh_api_disable
+**
+** Description      Perform necessary operations to disable HID host.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hh_api_disable(void)
+{
+    UINT8 xx;
+
+    /* service is not enabled */
+    if (bta_hh_cb.p_cback == NULL)
+        return;
+
+    /* no live connection, signal DISC_CMPL_EVT directly */
+    if (!bta_hh_cb.cnt_num)
+    {
+        bta_hh_disc_cmpl();
+    }
+    else /* otherwise, disconnect all live connections */
+    {
+        bta_hh_cb.w4_disable = TRUE;
+
+        for(xx = 0; xx < BTA_HH_MAX_DEVICE; xx ++)
+        {
+            /* send API_CLOSE event to every connected device */
+            if ( bta_hh_cb.kdev[xx].state == BTA_HH_CONN_ST )
+            {
+                /* disconnect all connected devices */
+                bta_hh_sm_execute(&bta_hh_cb.kdev[xx],
+                                BTA_HH_API_CLOSE_EVT,
+                                NULL);
+            }
+        }
+    }
+
+    return;
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_disc_cmpl
+**
+** Description      All connections have been closed, disable service.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hh_disc_cmpl(void)
+{
+    tBTA_HH_STATUS  status = BTA_HH_OK;
+
+    /* Deregister with lower layer */
+    if (HID_HostDeregister() != HID_SUCCESS)
+        status = BTA_HH_ERR;
+
+#if (BTA_HH_LE_INCLUDED == TRUE)
+    bta_hh_le_deregister();
+    UNUSED(status);
+#else
+    bta_hh_cleanup_disable(status);
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_sdp_cback
+**
+** Description      SDP callback function.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_hh_sdp_cback(UINT16 result, UINT16 attr_mask,
+                                  tHID_DEV_SDP_INFO *sdp_rec )
+{
+    tBTA_HH_DEV_CB     *p_cb = bta_hh_cb.p_cur;
+    UINT8              hdl = 0;
+    tBTA_HH_STATUS    status = BTA_HH_ERR_SDP;
+
+    /* make sure sdp succeeded and hh has not been disabled */
+    if ((result == SDP_SUCCESS) && (p_cb != NULL))
+    {
+        /* security is required for the connection, add attr_mask bit*/
+        if (p_cb->sec_mask)
+            attr_mask |= HID_SEC_REQUIRED;
+
+#if BTA_HH_DEBUG
+        APPL_TRACE_EVENT("bta_hh_sdp_cback: p_cb: %d result 0x%02x, \
+                            attr_mask 0x%02x, handle %x", \
+                            p_cb, result, attr_mask,p_cb->hid_handle);
+#endif
+
+        /* check to see type of device is supported , and should not been added before */
+        if (bta_hh_tod_spt(p_cb, sdp_rec->sub_class))
+        {
+            /* if not added before */
+            if (p_cb->hid_handle == BTA_HH_INVALID_HANDLE)
+            {
+                /*  add device/update attr_mask information */
+                if(HID_HostAddDev (p_cb->addr, attr_mask, &hdl) == HID_SUCCESS)
+                {
+                    status = BTA_HH_OK;
+                    /* update cb_index[] map */
+                    bta_hh_cb.cb_index[hdl] = p_cb->index;
+                }
+                else
+                {
+                    p_cb->app_id = 0;
+                }
+            }
+            else
+            {
+                hdl = p_cb->hid_handle;
+            }
+            /* else : incoming connection after SDP should update the SDP information as well */
+
+            if (p_cb->app_id != 0)
+            {
+                /* update cb information with attr_mask, dscp_info etc. */
+                bta_hh_add_device_to_list(p_cb,  hdl, attr_mask,
+                                            &sdp_rec->dscp_info,
+                                            sdp_rec->sub_class,
+                                            sdp_rec->ssr_max_latency,
+                                            sdp_rec->ssr_min_tout,
+                                            p_cb->app_id);
+
+                p_cb->dscp_info.ctry_code = sdp_rec->ctry_code;
+
+                status = BTA_HH_OK;
+            }
+
+        }
+        else /* type of device is not supported */
+            status = BTA_HH_ERR_TOD_UNSPT;
+    }
+
+    /* free disc_db when SDP is completed */
+    osi_free_and_reset((void **)&bta_hh_cb.p_disc_db);
+
+    /* send SDP_CMPL_EVT into state machine */
+    bta_hh_sm_execute(p_cb, BTA_HH_SDP_CMPL_EVT, (tBTA_HH_DATA *)&status);
+
+    return;
+}
+/*******************************************************************************
+**
+** Function         bta_hh_di_sdp_cback
+**
+** Description      SDP DI callback function.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_hh_di_sdp_cback(UINT16 result)
+{
+    tBTA_HH_DEV_CB     *p_cb = bta_hh_cb.p_cur;
+    tBTA_HH_STATUS         status = BTA_HH_ERR_SDP;
+    tSDP_DI_GET_RECORD  di_rec;
+    tHID_STATUS ret;
+#if BTA_HH_DEBUG
+    APPL_TRACE_EVENT("bta_hh_di_sdp_cback: p_cb: %d result 0x%02x", p_cb, result);
+#endif
+
+    /* if DI record does not exist on remote device, vendor_id in tBTA_HH_DEV_DSCP_INFO will be
+         * set to 0xffff and we will allow the connection to go through. Spec mandates that DI
+         * record be set, but many HID devices do not set this. So for IOP purposes, we allow the
+         * connection to go through and update the DI record to invalid DI entry.*/
+    if (((result == SDP_SUCCESS) || (result == SDP_NO_RECS_MATCH)) && (p_cb != NULL))
+    {
+        if(result == SDP_SUCCESS && SDP_GetNumDiRecords(bta_hh_cb.p_disc_db) != 0)
+        {
+            /* always update information with primary DI record */
+            if (SDP_GetDiRecord(1, &di_rec, bta_hh_cb.p_disc_db) == SDP_SUCCESS)
+            {
+                bta_hh_update_di_info(p_cb, di_rec.rec.vendor, di_rec.rec.product, di_rec.rec.version, 0);
+            }
+
+        }
+        else /* no DI recrod available */
+        {
+            bta_hh_update_di_info(p_cb, BTA_HH_VENDOR_ID_INVALID, 0, 0, 0);
+        }
+
+        if ((ret = HID_HostGetSDPRecord(p_cb->addr,
+                                 bta_hh_cb.p_disc_db,
+                                 p_bta_hh_cfg->sdp_db_size,
+                                 bta_hh_sdp_cback)) == HID_SUCCESS)
+        {
+            status = BTA_HH_OK;
+        }
+        else
+        {
+#if BTA_HH_DEBUG
+            APPL_TRACE_DEBUG ("bta_hh_di_sdp_cback:  HID_HostGetSDPRecord failed: Status 0x%2x",
+                               ret);
+#endif
+        }
+    }
+
+
+    if (status != BTA_HH_OK) {
+        osi_free_and_reset((void **)&bta_hh_cb.p_disc_db);
+        /* send SDP_CMPL_EVT into state machine */
+        bta_hh_sm_execute(p_cb, BTA_HH_SDP_CMPL_EVT, (tBTA_HH_DATA *)&status);
+    }
+    return;
+
+}
+
+
+/*******************************************************************************
+**
+** Function         bta_hh_start_sdp
+**
+** Description      Start SDP service search, and obtain necessary SDP records.
+**                  Only one SDP service search request is allowed at the same
+**                  time. For every BTA_HhOpen API call, do SDP first unless SDP
+**                  has been done previously.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hh_start_sdp(tBTA_HH_DEV_CB *p_cb, tBTA_HH_DATA *p_data)
+{
+    tBTA_HH_STATUS          status = BTA_HH_ERR_SDP;
+    UINT8                   hdl;
+
+    p_cb->sec_mask  = p_data->api_conn.sec_mask;
+    p_cb->mode      = p_data->api_conn.mode;
+    bta_hh_cb.p_cur = p_cb;
+
+#if (BTA_HH_LE_INCLUDED == TRUE)
+    if (bta_hh_is_le_device(p_cb, p_data->api_conn.bd_addr))
+    {
+        bta_hh_le_open_conn(p_cb, p_data->api_conn.bd_addr);
+        return;
+    }
+#endif
+
+    /* if previously virtually cabled device, skip SDP */
+    if (p_cb->app_id)
+    {
+        status = BTA_HH_OK;
+#if BTA_HH_DEBUG
+        APPL_TRACE_DEBUG("bta_hh_start_sdp:: skip SDP for known devices");
+#endif
+        if (p_cb->hid_handle == BTA_HH_INVALID_HANDLE)
+        {
+            if (HID_HostAddDev (p_cb->addr, p_cb->attr_mask, &hdl) \
+                == HID_SUCCESS)
+            {
+                /* update device CB with newly register device handle */
+                bta_hh_add_device_to_list(p_cb,  hdl, p_cb->attr_mask, NULL,
+                                          p_cb->sub_class,
+                                          p_cb->dscp_info.ssr_max_latency,
+                                          p_cb->dscp_info.ssr_min_tout,
+                                          p_cb->app_id);
+                /* update cb_index[] map */
+                bta_hh_cb.cb_index[hdl] = p_cb->index;
+            }
+            else
+                status = BTA_HH_ERR_NO_RES;
+        }
+        bta_hh_sm_execute(p_cb, BTA_HH_SDP_CMPL_EVT, (tBTA_HH_DATA *)&status);
+
+        return;
+    }
+    /* GetSDPRecord. at one time only one SDP precedure can be active */
+    else if (!bta_hh_cb.p_disc_db)
+    {
+        bta_hh_cb.p_disc_db = (tSDP_DISCOVERY_DB *)osi_malloc(p_bta_hh_cfg->sdp_db_size);
+        bta_hh_cb.p_cur = p_cb;
+        /* do DI discovery first */
+        if (SDP_DiDiscover(p_data->api_conn.bd_addr,
+                           bta_hh_cb.p_disc_db,
+                           p_bta_hh_cfg->sdp_db_size,
+                           bta_hh_di_sdp_cback) != SDP_SUCCESS) {
+#if BTA_HH_DEBUG
+            APPL_TRACE_DEBUG("bta_hh_start_sdp:  SDP_DiDiscover failed: \
+                    Status 0x%2X",status);
+#endif
+            status = BTA_HH_ERR_SDP;
+            osi_free_and_reset((void **)&bta_hh_cb.p_disc_db);
+        } else {
+            status = BTA_HH_OK;
+        }
+    }
+
+    if (status != BTA_HH_OK)
+        bta_hh_sm_execute(p_cb, BTA_HH_SDP_CMPL_EVT, (tBTA_HH_DATA *)&status);
+
+    return;
+
+}
+/*******************************************************************************
+**
+** Function         bta_hh_sdp_cmpl
+**
+** Description      When SDP completed, initiate a connection or report error depend
+**                  on SDP result.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hh_sdp_cmpl(tBTA_HH_DEV_CB *p_cb, tBTA_HH_DATA *p_data)
+{
+    tBTA_HH_CONN            conn_dat;
+    tBTA_HH_STATUS          status = p_data->status;
+
+#if BTA_HH_DEBUG
+    APPL_TRACE_DEBUG ("bta_hh_sdp_cmpl:  status 0x%2X",p_data->status);
+#endif
+
+    /* initialize call back data */
+    memset((void *)&conn_dat, 0, sizeof(tBTA_HH_CONN));
+    conn_dat.handle = p_cb->hid_handle;
+    bdcpy(conn_dat.bda, p_cb->addr);
+
+    /* if SDP compl success */
+    if ( status == BTA_HH_OK)
+    {
+        /* not incoming connection doing SDP, initiate a HID connection */
+        if (!p_cb->incoming_conn)
+        {
+            tHID_STATUS ret;
+            /* set security level */
+            HID_HostSetSecurityLevel("", p_cb->sec_mask);
+
+            /* open HID connection */
+            ret = HID_HostOpenDev (p_cb->hid_handle);
+            APPL_TRACE_DEBUG ("%s: HID_HostOpenDev returned=%d", __func__, ret);
+            if (ret == HID_SUCCESS || ret == HID_ERR_ALREADY_CONN)
+            {
+                status = BTA_HH_OK;
+            }
+            else if (ret == HID_ERR_CONN_IN_PROCESS)
+            {
+                /* Connection already in progress, return from here, SDP
+                 * will be performed after connection is completed.
+                 */
+                APPL_TRACE_DEBUG ("%s: connection already in progress", __func__);
+                return;
+            }
+            else
+            {
+#if BTA_HH_DEBUG
+                APPL_TRACE_DEBUG ("%s: HID_HostOpenDev failed: Status 0x%2X", __func__, ret);
+#endif
+                /* open fail, remove device from management device list */
+                HID_HostRemoveDev( p_cb->hid_handle);
+                status = BTA_HH_ERR;
+            }
+        }
+        else /* incoming connection SDP finish */
+        {
+            bta_hh_sm_execute(p_cb, BTA_HH_OPEN_CMPL_EVT, NULL);
+        }
+    }
+
+    if (status != BTA_HH_OK)
+    {
+        /* Check if this was incoming connection request  from an unknown device
+           **and connection failed due to missing HID Device SDP UUID
+           **In above condition, disconnect the link as well as remove the
+           **device from list of HID devices*/
+        if ((status == BTA_HH_ERR_SDP) &&
+           (p_cb->incoming_conn) &&(p_cb->app_id == 0))
+        {
+            APPL_TRACE_DEBUG ("bta_hh_sdp_cmpl:SDP failed for  incoming conn :hndl %d",
+                                p_cb->incoming_hid_handle);
+            HID_HostRemoveDev( p_cb->incoming_hid_handle);
+        }
+        conn_dat.status = status;
+        (* bta_hh_cb.p_cback)(BTA_HH_OPEN_EVT, (tBTA_HH *)&conn_dat);
+
+        /* move state machine W4_CONN ->IDLE */
+        bta_hh_sm_execute(p_cb, BTA_HH_API_CLOSE_EVT, NULL);
+
+        /* if this is an outgoing connection to an unknown device, clean up cb */
+        if (p_cb->app_id == 0 && !p_cb->incoming_conn)
+        {
+            /* clean up device control block */
+            bta_hh_clean_up_kdev(p_cb);
+        }
+#if BTA_HH_DEBUG
+        bta_hh_trace_dev_db();
+#endif
+    }
+    return;
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_api_disc_act
+**
+** Description      HID Host initiate a disconnection.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hh_api_disc_act(tBTA_HH_DEV_CB *p_cb, tBTA_HH_DATA *p_data)
+{
+    tBTA_HH_CBDATA    disc_dat;
+    tHID_STATUS     status;
+
+#if BTA_HH_LE_INCLUDED == TRUE
+    if (p_cb->is_le_device)
+#ifdef BLUETOOTH_RTK
+        bta_hh_le_api_disc_only_act(p_cb);
+#else
+        bta_hh_le_api_disc_act(p_cb);
+#endif
+    else
+#endif
+    {
+        /* found an active connection */
+        disc_dat.handle = p_data ?(UINT8)p_data->hdr.layer_specific :p_cb->hid_handle;
+        disc_dat.status = BTA_HH_ERR;
+
+        status = HID_HostCloseDev(disc_dat.handle);
+
+        if (status)
+            (* bta_hh_cb.p_cback)(BTA_HH_CLOSE_EVT, (tBTA_HH *)&disc_dat);
+    }
+
+    return;
+
+}
+/*******************************************************************************
+**
+** Function         bta_hh_open_cmpl_act
+**
+** Description      HID host connection completed
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hh_open_cmpl_act(tBTA_HH_DEV_CB *p_cb, tBTA_HH_DATA *p_data)
+{
+    tBTA_HH_CONN        conn ;
+    UINT8   dev_handle = p_data ? (UINT8)p_data->hid_cback.hdr.layer_specific : \
+                        p_cb->hid_handle;
+
+    memset((void *)&conn, 0, sizeof (tBTA_HH_CONN));
+    conn.handle = dev_handle;
+    bdcpy(conn.bda, p_cb->addr);
+
+    /* increase connection number */
+    bta_hh_cb.cnt_num ++;
+
+    /* initialize device driver */
+    bta_hh_co_open(p_cb->hid_handle, p_cb->sub_class,
+                       p_cb->attr_mask,  p_cb->app_id);
+
+#if (BTA_HH_LE_INCLUDED == TRUE)
+    conn.status = p_cb->status;
+    conn.le_hid = p_cb->is_le_device;
+    conn.scps_supported = p_cb->scps_supported;
+
+    if (!p_cb->is_le_device)
+#endif
+    {
+        /* inform role manager */
+        bta_sys_conn_open( BTA_ID_HH ,p_cb->app_id, p_cb->addr);
+    }
+    /* set protocol mode when not default report mode */
+    if ( p_cb->mode != BTA_HH_PROTO_RPT_MODE
+#if (BTA_HH_LE_INCLUDED == TRUE)
+         && !p_cb->is_le_device
+#endif
+        )
+    {
+        if ((HID_HostWriteDev(dev_handle,
+                              HID_TRANS_SET_PROTOCOL, HID_PAR_PROTOCOL_BOOT_MODE,
+                              0,
+                              0, NULL)) != HID_SUCCESS)
+        {
+            /* HID connection is up, while SET_PROTO fail */
+            conn.status = BTA_HH_ERR_PROTO;
+            (* bta_hh_cb.p_cback)(BTA_HH_OPEN_EVT, (tBTA_HH *)&conn);
+        }
+        else
+        {
+            conn.status = BTA_HH_OK;
+            p_cb->w4_evt = BTA_HH_OPEN_EVT;
+        }
+    }
+    else
+        (* bta_hh_cb.p_cback)(BTA_HH_OPEN_EVT, (tBTA_HH *)&conn);
+
+    p_cb->incoming_conn = FALSE;
+    p_cb->incoming_hid_handle = BTA_HH_INVALID_HANDLE;
+
+}
+/*******************************************************************************
+**
+** Function         bta_hh_open_act
+**
+** Description      HID host receive HID_OPEN_EVT .
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hh_open_act(tBTA_HH_DEV_CB *p_cb, tBTA_HH_DATA *p_data)
+{
+    tBTA_HH_API_CONN    conn_data;
+
+    UINT8   dev_handle = p_data ? (UINT8)p_data->hid_cback.hdr.layer_specific : \
+                        p_cb->hid_handle;
+
+#if BTA_HH_DEBUG
+    APPL_TRACE_EVENT ("bta_hh_open_act:  Device[%d] connected", dev_handle);
+#endif
+
+    /* SDP has been done */
+    if (p_cb->app_id != 0)
+    {
+        bta_hh_sm_execute(p_cb, BTA_HH_OPEN_CMPL_EVT, p_data);
+    }
+    else
+    /*  app_id == 0 indicates an incoming conenction request arrives without SDP
+        performed, do it first */
+    {
+        p_cb->incoming_conn = TRUE;
+        /* store the handle here in case sdp fails - need to disconnect */
+        p_cb->incoming_hid_handle = dev_handle;
+
+        memset(&conn_data, 0, sizeof(tBTA_HH_API_CONN));
+        bdcpy(conn_data.bd_addr, p_cb->addr);
+        bta_hh_start_sdp(p_cb, (tBTA_HH_DATA *)&conn_data);
+    }
+
+    return;
+}
+
+
+/*******************************************************************************
+**
+** Function         bta_hh_data_act
+**
+** Description      HID Host process a data report
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hh_data_act(tBTA_HH_DEV_CB *p_cb, tBTA_HH_DATA * p_data)
+{
+    BT_HDR  *pdata = p_data->hid_cback.p_data;
+    UINT8   *p_rpt = (UINT8 *)(pdata + 1) + pdata->offset;
+
+    bta_hh_co_data((UINT8)p_data->hid_cback.hdr.layer_specific, p_rpt, pdata->len,
+                    p_cb->mode, p_cb->sub_class, p_cb->dscp_info.ctry_code, p_cb->addr, p_cb->app_id);
+
+    osi_free_and_reset((void **)&pdata);
+}
+
+
+/*******************************************************************************
+**
+** Function         bta_hh_handsk_act
+**
+** Description      HID Host process a handshake acknoledgement.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hh_handsk_act(tBTA_HH_DEV_CB *p_cb, tBTA_HH_DATA * p_data)
+{
+    tBTA_HH_CBDATA  cback_data ;
+    tBTA_HH_HSDATA  hs_data;
+    tBTA_HH_CONN    conn ;
+
+#if BTA_HH_DEBUG
+    APPL_TRACE_DEBUG("HANDSHAKE received for: event = %s data= %d",
+        bta_hh_get_w4_event(p_cb->w4_evt), p_data->hid_cback.data);
+#endif
+
+    memset(&hs_data, 0, sizeof(tBTA_HH_HSDATA));
+    memset(&cback_data, 0, sizeof(tBTA_HH_CBDATA));
+
+    switch (p_cb->w4_evt)
+    {
+        /* GET_ transsaction, handshake indicate unsupported request */
+        case BTA_HH_GET_PROTO_EVT:
+            hs_data.rsp_data.proto_mode = BTA_HH_PROTO_UNKNOWN;
+            /* fall through */
+        case BTA_HH_GET_RPT_EVT:
+        case BTA_HH_GET_IDLE_EVT :
+            hs_data.handle = p_cb->hid_handle;
+            /* if handshake gives an OK code for these transaction, fill in UNSUPT */
+            if ((hs_data.status = bta_hh_get_trans_status(p_data->hid_cback.data)) == BTA_HH_OK)
+                 hs_data.status = BTA_HH_HS_TRANS_NOT_SPT;
+
+            (* bta_hh_cb.p_cback)(p_cb->w4_evt, (tBTA_HH *)&hs_data);
+            p_cb->w4_evt = 0;
+            break;
+
+        /* acknoledgement from HID device for SET_ transaction */
+        case BTA_HH_SET_RPT_EVT:
+        case BTA_HH_SET_PROTO_EVT:
+        case BTA_HH_SET_IDLE_EVT :
+            cback_data.handle  = p_cb->hid_handle;
+            cback_data.status = bta_hh_get_trans_status(p_data->hid_cback.data);
+            (* bta_hh_cb.p_cback)(p_cb->w4_evt, (tBTA_HH *)&cback_data);
+            p_cb->w4_evt = 0;
+            break;
+
+        /* SET_PROTOCOL when open connection */
+        case BTA_HH_OPEN_EVT:
+            conn.status =p_data->hid_cback.data ? BTA_HH_ERR_PROTO: BTA_HH_OK;
+            conn.handle = p_cb->hid_handle;
+            bdcpy(conn.bda, p_cb->addr);
+            (* bta_hh_cb.p_cback)(p_cb->w4_evt, (tBTA_HH *)&conn);
+#if BTA_HH_DEBUG
+            bta_hh_trace_dev_db();
+#endif
+            p_cb->w4_evt = 0;
+            break;
+
+        default:
+            /* unknow transaction handshake response */
+            APPL_TRACE_DEBUG("unknown transaction type");
+            break;
+    }
+
+    /* transaction achknoledgement received, inform PM for mode change */
+    bta_sys_idle(BTA_ID_HH, p_cb->app_id, p_cb->addr);
+    return;
+}
+/*******************************************************************************
+**
+** Function         bta_hh_ctrl_dat_act
+**
+** Description      HID Host process a data report from control channel.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hh_ctrl_dat_act(tBTA_HH_DEV_CB *p_cb, tBTA_HH_DATA * p_data)
+{
+    BT_HDR          *pdata = p_data->hid_cback.p_data;
+    UINT8           *data = (UINT8 *)(pdata + 1) + pdata->offset;
+    tBTA_HH_HSDATA    hs_data;
+
+#if BTA_HH_DEBUG
+    APPL_TRACE_DEBUG("Ctrl DATA received w4: event[%s]",
+                        bta_hh_get_w4_event(p_cb->w4_evt));
+#endif
+    hs_data.status  = BTA_HH_OK;
+    hs_data.handle  = p_cb->hid_handle;
+
+    switch (p_cb->w4_evt)
+    {
+    case BTA_HH_GET_IDLE_EVT:
+        hs_data.rsp_data.idle_rate = *data;
+        break;
+    case BTA_HH_GET_RPT_EVT:
+        hs_data.rsp_data.p_rpt_data = pdata;
+        break;
+    case BTA_HH_GET_PROTO_EVT:
+        /* match up BTE/BTA report/boot mode def*/
+        hs_data.rsp_data.proto_mode = ((*data) == HID_PAR_PROTOCOL_REPORT)? \
+                    BTA_HH_PROTO_RPT_MODE : BTA_HH_PROTO_BOOT_MODE;
+#if BTA_HH_DEBUG
+        APPL_TRACE_DEBUG("GET_PROTOCOL Mode = [%s]",
+            (hs_data.rsp_data.proto_mode == BTA_HH_PROTO_RPT_MODE)? "Report" : "Boot");
+#endif
+        break;
+    /* should not expect control DATA for SET_ transaction */
+    case BTA_HH_SET_PROTO_EVT:
+        /* fall through */
+    case BTA_HH_SET_RPT_EVT:
+        /* fall through */
+    case BTA_HH_SET_IDLE_EVT :
+        /* fall through */
+    default:
+#if BTA_HH_DEBUG
+        APPL_TRACE_DEBUG("invalid  transaction type for DATA payload: 4_evt[%s]",
+                        bta_hh_get_w4_event(p_cb->w4_evt));
+#endif
+        break;
+    }
+
+    /* inform PM for mode change */
+    bta_sys_busy(BTA_ID_HH, p_cb->app_id, p_cb->addr);
+    bta_sys_idle(BTA_ID_HH, p_cb->app_id, p_cb->addr);
+
+    (* bta_hh_cb.p_cback)(p_cb->w4_evt, (tBTA_HH *)&hs_data);
+
+    p_cb->w4_evt = 0;
+    osi_free_and_reset((void **)&pdata);
+
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_open_failure
+**
+** Description      report HID open failure when at wait for connection state and receive
+**                  device close event.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hh_open_failure(tBTA_HH_DEV_CB *p_cb, tBTA_HH_DATA *p_data)
+{
+    tBTA_HH_CONN            conn_dat ;
+    UINT32                  reason = p_data->hid_cback.data;    /* Reason for closing (32-bit) */
+
+    memset(&conn_dat, 0, sizeof(tBTA_HH_CONN));
+     conn_dat.handle = p_cb->hid_handle;
+     conn_dat.status = (reason == HID_ERR_AUTH_FAILED) ?
+                                    BTA_HH_ERR_AUTH_FAILED : BTA_HH_ERR;
+     bdcpy(conn_dat.bda, p_cb->addr);
+     HID_HostCloseDev(p_cb->hid_handle);
+
+     /* Report OPEN fail event */
+     (*bta_hh_cb.p_cback)(BTA_HH_OPEN_EVT, (tBTA_HH *)&conn_dat);
+
+#if BTA_HH_DEBUG
+    bta_hh_trace_dev_db();
+#endif
+    /* clean up control block, but retain SDP info and device handle */
+    p_cb->vp            = FALSE;
+    p_cb->w4_evt        = 0;
+
+    /* if no connection is active and HH disable is signaled, disable service */
+    if (bta_hh_cb.cnt_num == 0 && bta_hh_cb.w4_disable)
+    {
+        bta_hh_disc_cmpl();
+    }
+
+    /* Error in opening hid connection, reset flags */
+    p_cb->incoming_conn = FALSE;
+    p_cb->incoming_hid_handle = BTA_HH_INVALID_HANDLE;
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_close_act
+**
+** Description      HID Host process a close event
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hh_close_act (tBTA_HH_DEV_CB *p_cb, tBTA_HH_DATA *p_data)
+{
+    tBTA_HH_CONN            conn_dat ;
+    tBTA_HH_CBDATA          disc_dat = {BTA_HH_OK, 0};
+    UINT32                  reason = p_data->hid_cback.data;    /* Reason for closing (32-bit) */
+
+    /* if HID_HDEV_EVT_VC_UNPLUG was received, report BTA_HH_VC_UNPLUG_EVT */
+    UINT16     event = p_cb->vp ? BTA_HH_VC_UNPLUG_EVT : BTA_HH_CLOSE_EVT;
+
+    disc_dat.handle = p_cb->hid_handle;
+    disc_dat.status = p_data->hid_cback.data;
+
+    /* Check reason for closing */
+    if ((reason & (HID_L2CAP_CONN_FAIL|HID_L2CAP_REQ_FAIL)) ||  /* Failure to initialize connection (page timeout or l2cap error) */
+        (reason == HID_ERR_AUTH_FAILED) ||                      /* Authenication error (while initiating) */
+        (reason == HID_ERR_L2CAP_FAILED))                       /* Failure creating l2cap connection */
+    {
+        /* Failure in opening connection */
+        conn_dat.handle = p_cb->hid_handle;
+        conn_dat.status = (reason == HID_ERR_AUTH_FAILED) ? BTA_HH_ERR_AUTH_FAILED : BTA_HH_ERR;
+        bdcpy(conn_dat.bda, p_cb->addr);
+        HID_HostCloseDev(p_cb->hid_handle);
+
+        /* Report OPEN fail event */
+        (*bta_hh_cb.p_cback)(BTA_HH_OPEN_EVT, (tBTA_HH *)&conn_dat);
+
+#if BTA_HH_DEBUG
+        bta_hh_trace_dev_db();
+#endif
+        return;
+    }
+    /* otherwise report CLOSE/VC_UNPLUG event */
+    else
+    {
+        /* finaliza device driver */
+        bta_hh_co_close(p_cb->hid_handle, p_cb->app_id);
+        /* inform role manager */
+        bta_sys_conn_close( BTA_ID_HH ,p_cb->app_id, p_cb->addr);
+        /* update total conn number */
+        bta_hh_cb.cnt_num --;
+
+        if (disc_dat.status)
+            disc_dat.status = BTA_HH_ERR;
+
+        (*bta_hh_cb.p_cback)(event, (tBTA_HH *)&disc_dat);
+
+        /* if virtually unplug, remove device */
+        if (p_cb->vp )
+        {
+            HID_HostRemoveDev( p_cb->hid_handle);
+            bta_hh_clean_up_kdev(p_cb);
+        }
+
+#if BTA_HH_DEBUG
+        bta_hh_trace_dev_db();
+#endif
+    }
+
+    /* clean up control block, but retain SDP info and device handle */
+    p_cb->vp            = FALSE;
+    p_cb->w4_evt        = 0;
+
+    /* if no connection is active and HH disable is signaled, disable service */
+    if (bta_hh_cb.cnt_num == 0 && bta_hh_cb.w4_disable)
+    {
+        bta_hh_disc_cmpl();
+    }
+
+    return;
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_get_dscp_act
+**
+** Description      Get device report descriptor
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hh_get_dscp_act(tBTA_HH_DEV_CB *p_cb, tBTA_HH_DATA *p_data)
+{
+    UNUSED(p_data);
+
+#if (BTA_HH_LE_INCLUDED == TRUE)
+    if (p_cb->is_le_device)
+    {
+        bta_hh_le_get_dscp_act(p_cb);
+    }
+    else
+#endif
+    (*bta_hh_cb.p_cback)(BTA_HH_GET_DSCP_EVT, (tBTA_HH *)&p_cb->dscp_info);
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_maint_dev_act
+**
+** Description      HID Host maintain device list.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hh_maint_dev_act(tBTA_HH_DEV_CB *p_cb, tBTA_HH_DATA *p_data)
+{
+    tBTA_HH_MAINT_DEV       *p_dev_info = &p_data->api_maintdev;
+    tBTA_HH_DEV_INFO        dev_info ;
+    UINT8                   dev_handle;
+
+    dev_info.status = BTA_HH_ERR;
+    dev_info.handle = BTA_HH_INVALID_HANDLE;
+
+    switch (p_dev_info->sub_event)
+    {
+    case BTA_HH_ADD_DEV_EVT:    /* add a device */
+        bdcpy(dev_info.bda, p_dev_info->bda);
+        /* initialize callback data */
+        if (p_cb->hid_handle == BTA_HH_INVALID_HANDLE)
+        {
+#if (BTA_HH_LE_INCLUDED == TRUE)
+            if (bta_hh_is_le_device(p_cb, p_data->api_conn.bd_addr))
+            {
+                dev_info.handle   = bta_hh_le_add_device(p_cb, p_dev_info);
+                dev_info.status   = BTA_HH_OK;
+            }
+            else
+#endif
+
+            if (HID_HostAddDev(p_dev_info->bda, p_dev_info->attr_mask, &dev_handle)\
+                            == HID_SUCCESS)
+            {
+                dev_info.handle   = dev_handle;
+                dev_info.status   = BTA_HH_OK;
+
+#if (defined BTA_HH_LE_INCLUDED && BTA_HH_LE_INCLUDED == TRUE)
+                /* update DI information */
+                bta_hh_update_di_info(p_cb,
+                                      p_dev_info->dscp_info.vendor_id,
+                                      p_dev_info->dscp_info.product_id,
+                                      p_dev_info->dscp_info.version,
+                                      p_dev_info->dscp_info.flag);
+#else
+                bta_hh_update_di_info(p_cb,
+                                      p_dev_info->dscp_info.vendor_id,
+                                      p_dev_info->dscp_info.product_id,
+                                      p_dev_info->dscp_info.version,
+                                      0);
+
+#endif
+                /* add to BTA device list */
+                bta_hh_add_device_to_list(p_cb, dev_handle,
+                                          p_dev_info->attr_mask,
+                                          &p_dev_info->dscp_info.descriptor,
+                                          p_dev_info->sub_class,
+                                          p_dev_info->dscp_info.ssr_max_latency,
+                                          p_dev_info->dscp_info.ssr_min_tout,
+                                          p_dev_info->app_id);
+                /* update cb_index[] map */
+                bta_hh_cb.cb_index[dev_handle] = p_cb->index;
+            }
+        }
+        else    /* device already been added */
+        {
+            dev_info.handle = p_cb->hid_handle;
+            dev_info.status = BTA_HH_OK;
+        }
+#if BTA_HH_DEBUG
+        bta_hh_trace_dev_db();
+#endif
+
+        break;
+    case BTA_HH_RMV_DEV_EVT:    /* remove device */
+        dev_info.handle = (UINT8)p_dev_info->hdr.layer_specific;
+        bdcpy(dev_info.bda, p_cb->addr);
+
+#if BTA_HH_LE_INCLUDED == TRUE
+        if (p_cb->is_le_device)
+        {
+#ifdef BLUETOOTH_RTK
+            bta_hh_le_deregister_input_notif(p_cb,0,p_cb->mode);
+#endif
+            bta_hh_le_remove_dev_bg_conn(p_cb);
+            bta_hh_sm_execute(p_cb, BTA_HH_API_CLOSE_EVT, NULL);
+            bta_hh_clean_up_kdev(p_cb);
+        }
+        else
+#endif
+        {
+            if(HID_HostRemoveDev( dev_info.handle ) == HID_SUCCESS)
+            {
+                dev_info.status  = BTA_HH_OK;
+
+                /* remove from known device list in BTA */
+                bta_hh_clean_up_kdev(p_cb);
+            }
+        }
+        break;
+
+    default:
+        APPL_TRACE_DEBUG("invalid command");
+        break;
+    }
+
+    (* bta_hh_cb.p_cback)(p_dev_info->sub_event, (tBTA_HH *)&dev_info);
+}
+/*******************************************************************************
+**
+** Function         bta_hh_write_dev_act
+**
+** Description      Write device action. can be SET/GET/DATA transaction.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hh_write_dev_act(tBTA_HH_DEV_CB *p_cb, tBTA_HH_DATA *p_data)
+{
+    tBTA_HH_CBDATA     cbdata = {BTA_HH_OK, 0};
+    UINT16  event = (p_data->api_sndcmd.t_type - BTA_HH_FST_BTE_TRANS_EVT) +
+                        BTA_HH_FST_TRANS_CB_EVT;
+
+#if BTA_HH_LE_INCLUDED == TRUE
+    if (p_cb->is_le_device)
+        bta_hh_le_write_dev_act(p_cb, p_data);
+    else
+#endif
+    {
+
+    cbdata.handle = p_cb->hid_handle;
+
+    /* match up BTE/BTA report/boot mode def */
+    if (p_data->api_sndcmd.t_type == HID_TRANS_SET_PROTOCOL)
+    {
+        p_data->api_sndcmd.param = ( p_data->api_sndcmd.param == BTA_HH_PROTO_RPT_MODE) ?\
+                        HID_PAR_PROTOCOL_REPORT :HID_PAR_PROTOCOL_BOOT_MODE;
+    }
+
+    if (HID_HostWriteDev (p_cb->hid_handle,
+                       p_data->api_sndcmd.t_type,
+                       p_data->api_sndcmd.param,
+                       p_data->api_sndcmd.data,
+                       p_data->api_sndcmd.rpt_id,
+                       p_data->api_sndcmd.p_data) != HID_SUCCESS)
+    {
+        APPL_TRACE_ERROR("HID_HostWriteDev Error ");
+        cbdata.status = BTA_HH_ERR;
+
+        if (p_data->api_sndcmd.t_type != HID_TRANS_CONTROL &&
+            p_data->api_sndcmd.t_type != HID_TRANS_DATA)
+            (* bta_hh_cb.p_cback)(event, (tBTA_HH *)&cbdata);
+        else if (p_data->api_sndcmd.param == BTA_HH_CTRL_VIRTUAL_CABLE_UNPLUG)
+            (* bta_hh_cb.p_cback)(BTA_HH_VC_UNPLUG_EVT, (tBTA_HH *)&cbdata);
+    }
+    else
+    {
+
+        switch(p_data->api_sndcmd.t_type)
+        {
+        case HID_TRANS_SET_PROTOCOL:
+            /* fall through */
+        case HID_TRANS_GET_REPORT:
+            /* fall through */
+        case HID_TRANS_SET_REPORT:
+            /* fall through */
+        case HID_TRANS_GET_PROTOCOL:
+            /* fall through */
+        case HID_TRANS_GET_IDLE:
+            /* fall through */
+        case HID_TRANS_SET_IDLE:/* set w4_handsk event name for callback function use */
+            p_cb->w4_evt = event;
+            break;
+        case HID_TRANS_DATA:  /* output report */
+            /* fall through */
+        case HID_TRANS_CONTROL:
+            /* no handshake event will be generated */
+            /* if VC_UNPLUG is issued, set flag */
+            if (p_data->api_sndcmd.param == BTA_HH_CTRL_VIRTUAL_CABLE_UNPLUG)
+                p_cb->vp = TRUE;
+
+            break;
+        /* currently not expected */
+        case HID_TRANS_DATAC:
+        default:
+            APPL_TRACE_DEBUG("bta_hh_write_dev_act:: cmd type = %d",
+                            p_data->api_sndcmd.t_type);
+            break;
+        }
+
+        /* if not control type transaction, notify PM for energy control */
+        if (p_data->api_sndcmd.t_type != HID_TRANS_CONTROL)
+        {
+            /* inform PM for mode change */
+            bta_sys_busy(BTA_ID_HH, p_cb->app_id, p_cb->addr);
+            bta_sys_idle(BTA_ID_HH, p_cb->app_id, p_cb->addr);
+        }
+        else if (p_data->api_sndcmd.param == BTA_HH_CTRL_SUSPEND)
+        {
+			bta_sys_sco_close(BTA_ID_HH, p_cb->app_id, p_cb->addr);
+        }
+        else if (p_data->api_sndcmd.param == BTA_HH_CTRL_EXIT_SUSPEND)
+        {
+            bta_sys_busy(BTA_ID_HH, p_cb->app_id, p_cb->addr);
+        }
+    }
+
+    }
+    return;
+}
+
+/*****************************************************************************
+**  Static Function
+*****************************************************************************/
+/*******************************************************************************
+**
+** Function         bta_hh_cback
+**
+** Description      BTA HH callback function.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_hh_cback (UINT8 dev_handle, BD_ADDR addr, UINT8 event,
+                        UINT32 data, BT_HDR *pdata)
+{
+    UINT16  sm_event = BTA_HH_INVALID_EVT;
+    UINT8   xx = 0;
+
+#if BTA_HH_DEBUG
+    APPL_TRACE_DEBUG("bta_hh_cback::HID_event [%s]", bta_hh_hid_event_name(event));
+#endif
+
+    switch (event)
+    {
+    case HID_HDEV_EVT_OPEN:
+        sm_event = BTA_HH_INT_OPEN_EVT;
+        break;
+    case HID_HDEV_EVT_CLOSE:
+        sm_event = BTA_HH_INT_CLOSE_EVT;
+        break;
+    case HID_HDEV_EVT_INTR_DATA:
+        sm_event = BTA_HH_INT_DATA_EVT;
+        break;
+    case HID_HDEV_EVT_HANDSHAKE:
+        sm_event = BTA_HH_INT_HANDSK_EVT;
+        break;
+    case HID_HDEV_EVT_CTRL_DATA:
+        sm_event = BTA_HH_INT_CTRL_DATA;
+        break;
+    case HID_HDEV_EVT_RETRYING:
+        break;
+    case HID_HDEV_EVT_INTR_DATC:
+    case HID_HDEV_EVT_CTRL_DATC:
+        /* Unhandled events: Free buffer for DATAC */
+        osi_free_and_reset((void **)&pdata);
+        break;
+    case HID_HDEV_EVT_VC_UNPLUG:
+        for (xx = 0; xx < BTA_HH_MAX_DEVICE; xx++)
+        {
+            if (bta_hh_cb.kdev[xx].hid_handle == dev_handle)
+            {
+               bta_hh_cb.kdev[xx].vp = TRUE;
+               break;
+            }
+        }
+        break;
+    }
+
+    if (sm_event != BTA_HH_INVALID_EVT) {
+        tBTA_HH_CBACK_DATA *p_buf =
+            (tBTA_HH_CBACK_DATA *)osi_malloc(sizeof(tBTA_HH_CBACK_DATA) +
+                                             sizeof(BT_HDR));
+        p_buf->hdr.event = sm_event;
+        p_buf->hdr.layer_specific = (UINT16)dev_handle;
+        p_buf->data = data;
+        bdcpy(p_buf->addr, addr);
+        p_buf->p_data = pdata;
+
+        bta_sys_sendmsg(p_buf);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_get_trans_status
+**
+** Description      translate a handshake result code into BTA HH
+**                  status code
+**
+*******************************************************************************/
+static tBTA_HH_STATUS bta_hh_get_trans_status(UINT32 result)
+{
+    switch(result)
+    {
+    case HID_PAR_HANDSHAKE_RSP_SUCCESS :                /*   (0) */
+        return BTA_HH_OK;
+    case HID_PAR_HANDSHAKE_RSP_NOT_READY :              /*   (1) */
+    case HID_PAR_HANDSHAKE_RSP_ERR_INVALID_REP_ID:      /*   (2) */
+    case HID_PAR_HANDSHAKE_RSP_ERR_UNSUPPORTED_REQ :    /*   (3) */
+    case HID_PAR_HANDSHAKE_RSP_ERR_INVALID_PARAM :      /*   (4) */
+        return (tBTA_HH_STATUS)result;
+    case HID_PAR_HANDSHAKE_RSP_ERR_UNKNOWN :            /*   (14) */
+    case HID_PAR_HANDSHAKE_RSP_ERR_FATAL  :             /*   (15) */
+    default:
+        return BTA_HH_HS_ERROR;
+        break;
+    }
+}
+/*****************************************************************************
+**  Debug Functions
+*****************************************************************************/
+
+#if (defined BTA_HH_DEBUG && BTA_HH_DEBUG == TRUE)
+static char* bta_hh_get_w4_event(UINT16 event)
+{
+    switch (event)
+    {
+    case BTA_HH_GET_RPT_EVT:
+        return "BTA_HH_GET_RPT_EVT";
+    case BTA_HH_SET_RPT_EVT:
+        return "BTA_HH_SET_RPT_EVT";
+    case BTA_HH_GET_PROTO_EVT:
+        return "BTA_HH_GET_PROTO_EVT";
+    case BTA_HH_SET_PROTO_EVT:
+        return "BTA_HH_SET_PROTO_EVT";
+    case BTA_HH_GET_IDLE_EVT:
+        return "BTA_HH_GET_IDLE_EVT";
+    case BTA_HH_SET_IDLE_EVT:
+        return "BTA_HH_SET_IDLE_EVT";
+    case BTA_HH_OPEN_EVT:
+        return "BTA_HH_OPEN_EVT";
+    default:
+        return "Unknown event";
+    }
+
+}
+
+static char * bta_hh_hid_event_name(UINT16 event)
+{
+    switch (event)
+    {
+    case HID_HDEV_EVT_OPEN:
+        return "HID_HDEV_EVT_OPEN";
+    case HID_HDEV_EVT_CLOSE:
+        return "HID_HDEV_EVT_CLOSE";
+    case HID_HDEV_EVT_RETRYING:
+        return "HID_HDEV_EVT_RETRYING";
+    case HID_HDEV_EVT_INTR_DATA:
+        return "HID_HDEV_EVT_INTR_DATA";
+    case HID_HDEV_EVT_INTR_DATC:
+        return "HID_HDEV_EVT_INTR_DATC";
+    case HID_HDEV_EVT_CTRL_DATA:
+        return "HID_HDEV_EVT_CTRL_DATA";
+    case HID_HDEV_EVT_CTRL_DATC:
+        return "HID_HDEV_EVT_CTRL_DATC";
+    case HID_HDEV_EVT_HANDSHAKE:
+        return "HID_HDEV_EVT_HANDSHAKE";
+    case HID_HDEV_EVT_VC_UNPLUG:
+        return "HID_HDEV_EVT_VC_UNPLUG";
+    default:
+        return "Unknown HID event";
+    }
+}
+#endif
+#endif /* BTA_HH_INCLUDED */
+
diff --git a/rtkbt/code/bt/bta/hh/bta_hh_api.c b/rtkbt/code/bt/bta/hh/bta_hh_api.c
new file mode 100755
index 0000000..0ec729a
--- /dev/null
+++ b/rtkbt/code/bt/bta/hh/bta_hh_api.c
@@ -0,0 +1,452 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2005-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains the HID HOST API in the subsystem of BTA.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_bta_hh"
+
+#include "bta_hh_api.h"
+
+#include "bt_target.h"
+
+#if defined(BTA_HH_INCLUDED) && (BTA_HH_INCLUDED == TRUE)
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "bta_hh_int.h"
+#include "l2c_api.h"
+#include "osi/include/log.h"
+#include "utl.h"
+
+/*****************************************************************************
+**  Constants
+*****************************************************************************/
+
+static const tBTA_SYS_REG bta_hh_reg =
+{
+    bta_hh_hdl_event,
+    BTA_HhDisable
+};
+
+/*******************************************************************************
+**
+** Function         BTA_HhEnable
+**
+** Description      Enable the HID host.  This function must be called before
+**                  any other functions in the HID host API are called. When the
+**                  enable operation is complete the callback function will be
+**                  called with BTA_HH_ENABLE_EVT.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_HhEnable(tBTA_SEC sec_mask, tBTA_HH_CBACK *p_cback)
+{
+    tBTA_HH_API_ENABLE *p_buf =
+        (tBTA_HH_API_ENABLE *)osi_calloc(sizeof(tBTA_HH_API_ENABLE));
+
+    LOG_INFO(LOG_TAG, "%s sec_mask:0x%x p_cback:%p", __func__, sec_mask,
+             p_cback);
+
+    /* register with BTA system manager */
+    bta_sys_register(BTA_ID_HH, &bta_hh_reg);
+
+    p_buf->hdr.event = BTA_HH_API_ENABLE_EVT;
+    p_buf->p_cback = p_cback;
+    p_buf->sec_mask = sec_mask;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_HhDisable
+**
+** Description      Disable the HID host. If the server is currently
+**                  connected, the connection will be closed.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_HhDisable(void)
+{
+    BT_HDR *p_buf = (BT_HDR *)osi_malloc(sizeof(BT_HDR));
+
+    bta_sys_deregister(BTA_ID_HH);
+    p_buf->event = BTA_HH_API_DISABLE_EVT;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_HhClose
+**
+** Description      Disconnect a connection.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_HhClose(UINT8 dev_handle)
+{
+    BT_HDR *p_buf = (BT_HDR *)osi_calloc(sizeof(BT_HDR));
+
+    p_buf->event = BTA_HH_API_CLOSE_EVT;
+    p_buf->layer_specific = (UINT16)dev_handle;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_HhOpen
+**
+** Description      Connect to a device of specified BD address in specified
+**                  protocol mode and security level.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_HhOpen(BD_ADDR dev_bda, tBTA_HH_PROTO_MODE mode, tBTA_SEC sec_mask)
+{
+    tBTA_HH_API_CONN *p_buf =
+        (tBTA_HH_API_CONN *)osi_calloc(sizeof(tBTA_HH_API_CONN));
+
+    p_buf->hdr.event = BTA_HH_API_OPEN_EVT;
+    p_buf->hdr.layer_specific = BTA_HH_INVALID_HANDLE;
+    p_buf->sec_mask = sec_mask;
+    p_buf->mode = mode;
+    bdcpy(p_buf->bd_addr, dev_bda);
+
+    bta_sys_sendmsg((void *)p_buf);
+}
+
+/*******************************************************************************
+**
+** Function  bta_hh_snd_write_dev
+**
+*******************************************************************************/
+static void bta_hh_snd_write_dev(UINT8 dev_handle, UINT8 t_type, UINT8 param,
+                                 UINT16 data, UINT8 rpt_id, BT_HDR  *p_data)
+{
+    tBTA_HH_CMD_DATA *p_buf =
+        (tBTA_HH_CMD_DATA *)osi_calloc(sizeof(tBTA_HH_CMD_DATA));
+
+    p_buf->hdr.event = BTA_HH_API_WRITE_DEV_EVT;
+    p_buf->hdr.layer_specific = (UINT16)dev_handle;
+    p_buf->t_type = t_type;
+    p_buf->data = data;
+    p_buf->param = param;
+    p_buf->p_data = p_data;
+    p_buf->rpt_id = rpt_id;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_HhSetReport
+**
+** Description      send SET_REPORT to device.
+**
+** Parameter        dev_handle: device handle
+**                  r_type:     report type, could be BTA_HH_RPTT_OUTPUT or
+**                              BTA_HH_RPTT_FEATURE.
+** Returns          void
+**
+*******************************************************************************/
+void BTA_HhSetReport(UINT8 dev_handle, tBTA_HH_RPT_TYPE r_type, BT_HDR *p_data)
+{
+    bta_hh_snd_write_dev(dev_handle, HID_TRANS_SET_REPORT, r_type, 0, 0, p_data);
+}
+/*******************************************************************************
+**
+** Function         BTA_HhGetReport
+**
+** Description      Send a GET_REPORT to HID device.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_HhGetReport(UINT8 dev_handle, tBTA_HH_RPT_TYPE r_type, UINT8 rpt_id, UINT16 buf_size)
+{
+    UINT8 param = (buf_size) ? (r_type | 0x08) : r_type;
+
+    bta_hh_snd_write_dev(dev_handle, HID_TRANS_GET_REPORT, param,
+                        buf_size, rpt_id, NULL);
+}
+/*******************************************************************************
+**
+** Function         BTA_HhSetProtoMode
+**
+** Description      This function set the protocol mode at specified HID handle
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_HhSetProtoMode(UINT8 dev_handle, tBTA_HH_PROTO_MODE p_type)
+{
+    bta_hh_snd_write_dev(dev_handle, HID_TRANS_SET_PROTOCOL, (UINT8)p_type,
+                        0, 0, NULL);
+}
+/*******************************************************************************
+**
+** Function         BTA_HhGetProtoMode
+**
+** Description      This function get protocol mode information.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_HhGetProtoMode(UINT8 dev_handle)
+{
+    bta_hh_snd_write_dev(dev_handle, HID_TRANS_GET_PROTOCOL, 0, 0, 0, NULL);
+}
+/*******************************************************************************
+**
+** Function         BTA_HhSetIdle
+**
+** Description      send SET_IDLE to device.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_HhSetIdle(UINT8 dev_handle, UINT16 idle_rate)
+{
+    bta_hh_snd_write_dev(dev_handle, HID_TRANS_SET_IDLE, 0, idle_rate, 0, NULL);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_HhGetIdle
+**
+** Description      Send a GET_IDLE from HID device.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_HhGetIdle(UINT8 dev_handle)
+{
+    bta_hh_snd_write_dev(dev_handle, HID_TRANS_GET_IDLE, 0, 0, 0, NULL);
+}
+/*******************************************************************************
+**
+** Function         BTA_HhSendCtrl
+**
+** Description      Send a control command to HID device.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_HhSendCtrl(UINT8 dev_handle, tBTA_HH_TRANS_CTRL_TYPE c_type)
+{
+    bta_hh_snd_write_dev(dev_handle, HID_TRANS_CONTROL, (UINT8)c_type, 0, 0, NULL);
+}
+/*******************************************************************************
+**
+** Function         BTA_HhSendData
+**
+** Description      This function send DATA transaction to HID device.
+**
+** Parameter        dev_handle: device handle
+**                  dev_bda: remote device address
+**                  p_data: data to be sent in the DATA transaction; or
+**                          the data to be write into the Output Report of a LE HID
+**                          device. The report is identified the report ID which is
+**                          the value of the byte (UINT8 *)(p_buf + 1) + p_buf->offset.
+**                          p_data->layer_specific needs to be set to the report type,
+**                          it can be OUTPUT report, or FEATURE report.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_HhSendData(UINT8 dev_handle, BD_ADDR dev_bda, BT_HDR  *p_data)
+{
+    UNUSED(dev_bda);
+#if (defined BTA_HH_LE_INCLUDED && BTA_HH_LE_INCLUDED == TRUE)
+    if (p_data->layer_specific != BTA_HH_RPTT_OUTPUT)
+    {
+        APPL_TRACE_ERROR("ERROR! Wrong report type! Write Command only valid for output report!");
+        return;
+    }
+#endif
+    bta_hh_snd_write_dev(dev_handle, HID_TRANS_DATA, (UINT8)p_data->layer_specific, 0, 0, p_data);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_HhGetDscpInfo
+**
+** Description      Get HID device report descriptor
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_HhGetDscpInfo(UINT8 dev_handle)
+{
+    BT_HDR *p_buf = (BT_HDR *)osi_calloc(sizeof(BT_HDR));
+
+    p_buf->event = BTA_HH_API_GET_DSCP_EVT;
+    p_buf->layer_specific = (UINT16)dev_handle;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_HhAddDev
+**
+** Description      Add a virtually cabled device into HID-Host device list
+**                  to manage and assign a device handle for future API call,
+**                  host applciation call this API at start-up to initialize its
+**                  virtually cabled devices.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_HhAddDev(BD_ADDR bda, tBTA_HH_ATTR_MASK attr_mask, UINT8 sub_class,
+                  UINT8 app_id, tBTA_HH_DEV_DSCP_INFO dscp_info)
+{
+    size_t len = sizeof(tBTA_HH_MAINT_DEV) + dscp_info.descriptor.dl_len;
+    tBTA_HH_MAINT_DEV *p_buf = (tBTA_HH_MAINT_DEV *)osi_calloc(len);
+
+    p_buf->hdr.event = BTA_HH_API_MAINT_DEV_EVT;
+    p_buf->sub_event = BTA_HH_ADD_DEV_EVT;
+    p_buf->hdr.layer_specific = BTA_HH_INVALID_HANDLE;
+
+    p_buf->attr_mask = (UINT16) attr_mask;
+    p_buf->sub_class = sub_class;
+    p_buf->app_id = app_id;
+    bdcpy(p_buf->bda, bda);
+
+    memcpy(&p_buf->dscp_info, &dscp_info, sizeof(tBTA_HH_DEV_DSCP_INFO));
+    if ( dscp_info.descriptor.dl_len != 0 && dscp_info.descriptor.dsc_list) {
+        p_buf->dscp_info.descriptor.dl_len =  dscp_info.descriptor.dl_len;
+        p_buf->dscp_info.descriptor.dsc_list = (UINT8 *)(p_buf + 1);
+        memcpy(p_buf->dscp_info.descriptor.dsc_list,
+               dscp_info.descriptor.dsc_list,
+               dscp_info.descriptor.dl_len);
+    } else {
+      p_buf->dscp_info.descriptor.dsc_list = NULL;
+      p_buf->dscp_info.descriptor.dl_len = 0;
+    }
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_HhRemoveDev
+**
+** Description      Remove a device from the HID host devices list.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_HhRemoveDev(UINT8 dev_handle )
+{
+    tBTA_HH_MAINT_DEV *p_buf =
+        (tBTA_HH_MAINT_DEV *)osi_calloc(sizeof(tBTA_HH_MAINT_DEV));
+
+    p_buf->hdr.event = BTA_HH_API_MAINT_DEV_EVT;
+    p_buf->sub_event = BTA_HH_RMV_DEV_EVT;
+    p_buf->hdr.layer_specific = (UINT16)dev_handle;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+#if BTA_HH_LE_INCLUDED == TRUE
+
+/*******************************************************************************
+**
+** Function         BTA_HhUpdateLeScanParam
+**
+** Description      Update the scan paramteters if connected to a LE hid device as
+**                  report host.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_HhUpdateLeScanParam(UINT8 dev_handle, UINT16 scan_int, UINT16 scan_win)
+{
+    tBTA_HH_SCPP_UPDATE *p_buf =
+        (tBTA_HH_SCPP_UPDATE *)osi_calloc(sizeof(tBTA_HH_SCPP_UPDATE));
+
+    p_buf->hdr.event = BTA_HH_API_SCPP_UPDATE_EVT;
+    p_buf->hdr.layer_specific = (UINT16)dev_handle;
+    p_buf->scan_int = scan_int;
+    p_buf->scan_win = scan_win;
+
+    bta_sys_sendmsg(p_buf);
+}
+#endif
+
+/*******************************************************************************/
+/*                          Utility Function                                   */
+/*******************************************************************************/
+
+/*******************************************************************************
+**
+** Function         BTA_HhParseBootRpt
+**
+** Description      This utility function parse a boot mode report.
+**                  For keyboard report, report data will carry the keycode max
+**                  up to 6 key press in one report. Application need to convert
+**                  the keycode into keypress character according to keyboard
+**                  language.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_HhParseBootRpt(tBTA_HH_BOOT_RPT *p_data, UINT8 *p_report,
+                        UINT16 report_len)
+{
+    p_data->dev_type = BTA_HH_DEVT_UNKNOWN;
+
+    if (p_report)
+    {
+        /* first byte is report ID */
+        switch (p_report[0])
+        {
+        case BTA_HH_KEYBD_RPT_ID: /* key board report ID */
+            p_data->dev_type = p_report[0];
+            bta_hh_parse_keybd_rpt(p_data, p_report + 1, (UINT16)(report_len -1));
+            break;
+
+        case BTA_HH_MOUSE_RPT_ID: /* mouse report ID */
+            p_data->dev_type = p_report[0];
+            bta_hh_parse_mice_rpt(p_data, p_report + 1, (UINT16)(report_len - 1));
+            break;
+
+        default:
+            APPL_TRACE_DEBUG("Unknown boot report: %d", p_report[0]);;
+            break;
+        }
+    }
+
+    return;
+}
+
+#endif /* BTA_HH_INCLUDED */
diff --git a/rtkbt/code/bt/bta/hh/bta_hh_cfg.c b/rtkbt/code/bt/bta/hh/bta_hh_cfg.c
new file mode 100755
index 0000000..ae4650f
--- /dev/null
+++ b/rtkbt/code/bt/bta/hh/bta_hh_cfg.c
@@ -0,0 +1,62 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2005-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains compile-time configurable constants for the BTA Hid
+ *  Host.
+ *
+ ******************************************************************************/
+
+#include "bt_target.h"
+#include "bta_hh_api.h"
+
+/* max number of device types supported by BTA */
+#define BTA_HH_MAX_DEVT_SPT         9
+
+/* size of database for service discovery */
+#ifndef BTA_HH_DISC_BUF_SIZE
+#define BTA_HH_DISC_BUF_SIZE        BT_DEFAULT_BUFFER_SIZE
+#endif
+
+
+
+/* The type of devices supported by BTA HH and corresponding application ID */
+tBTA_HH_SPT_TOD p_devt_list[BTA_HH_MAX_DEVT_SPT] =
+{
+    {BTA_HH_DEVT_MIC, BTA_HH_APP_ID_MI},
+    {BTA_HH_DEVT_KBD, BTA_HH_APP_ID_KB},
+    {BTA_HH_DEVT_KBD|BTA_HH_DEVT_MIC, BTA_HH_APP_ID_KB},
+    {BTA_HH_DEVT_RMC, BTA_HH_APP_ID_RMC},
+    {BTA_HH_DEVT_RMC | BTA_HH_DEVT_KBD, BTA_HH_APP_ID_RMC},
+    {BTA_HH_DEVT_MIC | BTA_HH_DEVT_DGT, BTA_HH_APP_ID_MI},
+    {BTA_HH_DEVT_JOS, BTA_HH_APP_ID_JOY},
+    {BTA_HH_DEVT_GPD, BTA_HH_APP_ID_GPAD},
+    {BTA_HH_DEVT_UNKNOWN, BTA_HH_APP_ID_3DSG}
+};
+
+
+const tBTA_HH_CFG bta_hh_cfg =
+{
+    BTA_HH_MAX_DEVT_SPT,            /* number of supported type of devices */
+    p_devt_list,                    /* ToD & AppID list */
+    BTA_HH_DISC_BUF_SIZE            /* HH SDP discovery database size */
+};
+
+
+tBTA_HH_CFG *p_bta_hh_cfg = (tBTA_HH_CFG *)&bta_hh_cfg;
diff --git a/rtkbt/code/bt/bta/hh/bta_hh_int.h b/rtkbt/code/bt/bta/hh/bta_hh_int.h
new file mode 100755
index 0000000..c33da97
--- /dev/null
+++ b/rtkbt/code/bt/bta/hh/bta_hh_int.h
@@ -0,0 +1,418 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2005-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains BTA HID Host internal definitions
+ *
+ ******************************************************************************/
+
+#ifndef BTA_HH_INT_H
+#define BTA_HH_INT_H
+
+#include "bta_sys.h"
+#include "utl.h"
+#include "bta_hh_api.h"
+
+#if BTA_HH_LE_INCLUDED == TRUE
+#include "bta_gatt_api.h"
+#endif
+
+/* can be moved to bta_api.h */
+#define BTA_HH_MAX_RPT_CHARS    8
+
+#if (BTA_GATT_INCLUDED == FALSE || BLE_INCLUDED == FALSE)
+#undef BTA_HH_LE_INCLUDED
+#define BTA_HH_LE_INCLUDED      FALSE
+#endif
+
+/* state machine events, these events are handled by the state machine */
+enum
+{
+    BTA_HH_API_OPEN_EVT     = BTA_SYS_EVT_START(BTA_ID_HH),
+    BTA_HH_API_CLOSE_EVT,
+    BTA_HH_INT_OPEN_EVT,
+    BTA_HH_INT_CLOSE_EVT,
+    BTA_HH_INT_DATA_EVT,
+    BTA_HH_INT_CTRL_DATA,
+    BTA_HH_INT_HANDSK_EVT,
+    BTA_HH_SDP_CMPL_EVT,
+    BTA_HH_API_WRITE_DEV_EVT,
+    BTA_HH_API_GET_DSCP_EVT,
+    BTA_HH_API_MAINT_DEV_EVT,
+    BTA_HH_OPEN_CMPL_EVT,
+#if (defined BTA_HH_LE_INCLUDED && BTA_HH_LE_INCLUDED == TRUE)
+    BTA_HH_GATT_CLOSE_EVT,
+    BTA_HH_GATT_OPEN_EVT,
+    BTA_HH_START_ENC_EVT,
+    BTA_HH_ENC_CMPL_EVT,
+    BTA_HH_GATT_READ_CHAR_CMPL_EVT,
+    BTA_HH_GATT_WRITE_CHAR_CMPL_EVT,
+    BTA_HH_GATT_READ_DESCR_CMPL_EVT,
+    BTA_HH_GATT_WRITE_DESCR_CMPL_EVT,
+    BTA_HH_API_SCPP_UPDATE_EVT,
+    BTA_HH_GATT_ENC_CMPL_EVT,
+#endif
+
+    /* not handled by execute state machine */
+    BTA_HH_API_ENABLE_EVT,
+    BTA_HH_API_DISABLE_EVT,
+    BTA_HH_DISC_CMPL_EVT
+};
+typedef UINT16 tBTA_HH_INT_EVT;         /* HID host internal events */
+
+#define BTA_HH_INVALID_EVT      (BTA_HH_DISC_CMPL_EVT + 1)
+
+/* event used to map between BTE event and BTA event */
+#define BTA_HH_FST_TRANS_CB_EVT         BTA_HH_GET_RPT_EVT
+#define BTA_HH_FST_BTE_TRANS_EVT        HID_TRANS_GET_REPORT
+
+/* sub event code used for device maintainence API call */
+#define BTA_HH_ADD_DEV          0
+#define BTA_HH_REMOVE_DEV       1
+
+/* state machine states */
+enum
+{
+    BTA_HH_NULL_ST,
+    BTA_HH_IDLE_ST,
+    BTA_HH_W4_CONN_ST,
+    BTA_HH_CONN_ST
+#if (defined BTA_HH_LE_INCLUDED && BTA_HH_LE_INCLUDED == TRUE)
+    ,BTA_HH_W4_SEC
+#endif
+    ,BTA_HH_INVALID_ST    /* Used to check invalid states before executing SM function */
+
+};
+typedef UINT8 tBTA_HH_STATE;
+
+/* data structure used to send a command/data to HID device */
+typedef struct
+{
+    BT_HDR           hdr;
+    UINT8            t_type;
+    UINT8            param;
+    UINT8            rpt_id;
+#if (defined BTA_HH_LE_INCLUDED && BTA_HH_LE_INCLUDED == TRUE)
+    UINT8            srvc_id;
+#endif
+    UINT16           data;
+    BT_HDR           *p_data;
+}tBTA_HH_CMD_DATA;
+
+/* data type for BTA_HH_API_ENABLE_EVT */
+typedef struct
+{
+    BT_HDR              hdr;
+    UINT8               sec_mask;
+    UINT8               service_name[BTA_SERVICE_NAME_LEN+1];
+    tBTA_HH_CBACK   *p_cback;
+} tBTA_HH_API_ENABLE;
+
+typedef struct
+{
+    BT_HDR          hdr;
+    BD_ADDR         bd_addr;
+    UINT8           sec_mask;
+    tBTA_HH_PROTO_MODE  mode;
+}tBTA_HH_API_CONN;
+
+/* internal event data from BTE HID callback */
+typedef struct
+{
+    BT_HDR          hdr;
+    BD_ADDR         addr;
+    UINT32          data;
+    BT_HDR          *p_data;
+}tBTA_HH_CBACK_DATA;
+
+typedef struct
+{
+    BT_HDR              hdr;
+    BD_ADDR             bda;
+    UINT16              attr_mask;
+    UINT16              sub_event;
+    UINT8               sub_class;
+    UINT8               app_id;
+    tBTA_HH_DEV_DSCP_INFO      dscp_info;
+}tBTA_HH_MAINT_DEV;
+
+#if BTA_HH_LE_INCLUDED == TRUE
+typedef struct
+{
+    BT_HDR              hdr;
+    UINT16              conn_id;
+    tBTA_GATT_REASON    reason;         /* disconnect reason code, not useful when connect event is reported */
+
+}tBTA_HH_LE_CLOSE;
+
+typedef struct
+{
+    BT_HDR              hdr;
+    UINT16              scan_int;
+    UINT16              scan_win;
+}tBTA_HH_SCPP_UPDATE;
+#endif
+/* union of all event data types */
+typedef union
+{
+    BT_HDR                   hdr;
+    tBTA_HH_API_ENABLE       api_enable;
+    tBTA_HH_API_CONN         api_conn;
+    tBTA_HH_CMD_DATA         api_sndcmd;
+    tBTA_HH_CBACK_DATA       hid_cback;
+    tBTA_HH_STATUS           status;
+    tBTA_HH_MAINT_DEV        api_maintdev;
+#if BTA_HH_LE_INCLUDED == TRUE
+    tBTA_HH_LE_CLOSE         le_close;
+    tBTA_GATTC_OPEN          le_open;
+    tBTA_HH_SCPP_UPDATE      le_scpp_update;
+    tBTA_GATTC_ENC_CMPL_CB   le_enc_cmpl;
+#endif
+} tBTA_HH_DATA;
+
+#if (defined BTA_HH_LE_INCLUDED && BTA_HH_LE_INCLUDED == TRUE)
+typedef struct
+{
+    UINT8                   index;
+    BOOLEAN                 in_use;
+    UINT8                   srvc_inst_id;
+    UINT8                   char_inst_id;
+    tBTA_HH_RPT_TYPE        rpt_type;
+    UINT16                  uuid;
+    UINT8                   rpt_id;
+    BOOLEAN                 client_cfg_exist;
+    UINT16                  client_cfg_value;
+}tBTA_HH_LE_RPT;
+
+#ifndef BTA_HH_LE_RPT_MAX
+#define BTA_HH_LE_RPT_MAX       20
+#endif
+
+typedef struct
+{
+    BOOLEAN                 in_use;
+    UINT8                   srvc_inst_id;
+    tBTA_HH_LE_RPT          report[BTA_HH_LE_RPT_MAX];
+
+    UINT16                  proto_mode_handle;
+    UINT8                   control_point_handle;
+
+    BOOLEAN                 expl_incl_srvc;
+    UINT8                   incl_srvc_inst; /* assuming only one included service : battery service */
+    UINT8                   cur_expl_char_idx; /* currently discovering service index */
+    UINT8                   *rpt_map;
+    UINT16                  ext_rpt_ref;
+    tBTA_HH_DEV_DESCR       descriptor;
+
+}tBTA_HH_LE_HID_SRVC;
+
+/* convert a HID handle to the LE CB index */
+#define BTA_HH_GET_LE_CB_IDX(x)         (((x) >> 4) - 1)
+/* convert a GATT connection ID to HID device handle, it is the hi 4 bits of a UINT8 */
+#define BTA_HH_GET_LE_DEV_HDL(x)        (UINT8)(((x)  + 1) << 4)
+/* check to see if th edevice handle is a LE device handle */
+#define BTA_HH_IS_LE_DEV_HDL(x)        ((x) & 0xf0)
+#define BTA_HH_IS_LE_DEV_HDL_VALID(x)  (((x)>>4) <= BTA_HH_LE_MAX_KNOWN)
+#endif
+
+/* device control block */
+typedef struct
+{
+    tBTA_HH_DEV_DSCP_INFO  dscp_info;      /* report descriptor and DI information */
+    BD_ADDR             addr;           /* BD-Addr of the HID device */
+    UINT16              attr_mask;      /* attribute mask */
+    UINT16              w4_evt;         /* W4_handshake event name */
+    UINT8               index;          /* index number referenced to handle index */
+    UINT8               sub_class;      /* Cod sub class */
+    UINT8               sec_mask;       /* security mask */
+    UINT8               app_id;         /* application ID for this connection */
+    UINT8               hid_handle;     /* device handle : low 4 bits for regular HID: HID_HOST_MAX_DEVICES can not exceed 15;
+                                                            high 4 bits for LE HID: GATT_MAX_PHY_CHANNEL can not exceed 15 */
+    BOOLEAN             vp;             /* virtually unplug flag */
+    BOOLEAN             in_use;         /* control block currently in use */
+    BOOLEAN             incoming_conn;  /* is incoming connection? */
+    UINT8               incoming_hid_handle;  /* temporary handle for incoming connection? */
+    BOOLEAN             opened;         /* TRUE if device successfully opened HID connection */
+    tBTA_HH_PROTO_MODE  mode;           /* protocol mode */
+    tBTA_HH_STATE       state;          /* CB state */
+
+#if (BTA_HH_LE_INCLUDED == TRUE)
+#define BTA_HH_LE_DISC_NONE     0x00
+#define BTA_HH_LE_DISC_HIDS     0x01
+#define BTA_HH_LE_DISC_DIS      0x02
+#define BTA_HH_LE_DISC_SCPS     0x04
+
+    UINT8               disc_active;
+    tBTA_HH_STATUS      status;
+    tBTA_GATT_REASON    reason;
+    BOOLEAN             is_le_device;
+    tBTA_HH_LE_HID_SRVC hid_srvc;
+    UINT16              conn_id;
+    BOOLEAN             in_bg_conn;
+    UINT8               clt_cfg_idx;
+    UINT16              scan_refresh_char_handle;
+    BOOLEAN             scps_supported;
+
+#define BTA_HH_LE_SCPS_NOTIFY_NONE    0
+#define BTA_HH_LE_SCPS_NOTIFY_SPT  0x01
+#define BTA_HH_LE_SCPS_NOTIFY_ENB  0x02
+    UINT8               scps_notify;   /* scan refresh supported/notification enabled */
+#endif
+
+    BOOLEAN             security_pending;
+} tBTA_HH_DEV_CB;
+
+/* key board parsing control block */
+typedef struct
+{
+    BOOLEAN             mod_key[4]; /* ctrl, shift(upper), Alt, GUI */
+    BOOLEAN             num_lock;
+    BOOLEAN             caps_lock;
+    UINT8               last_report[BTA_HH_MAX_RPT_CHARS];
+} tBTA_HH_KB_CB;
+
+/******************************************************************************
+** Main Control Block
+*******************************************************************************/
+typedef struct
+{
+    tBTA_HH_KB_CB           kb_cb;                  /* key board control block,
+                                                       suppose BTA will connect
+                                                       to only one keyboard at
+                                                        the same time */
+    tBTA_HH_DEV_CB          kdev[BTA_HH_MAX_DEVICE]; /* device control block */
+    tBTA_HH_DEV_CB*         p_cur;              /* current device control
+                                                       block idx, used in sdp */
+    UINT8                   cb_index[BTA_HH_MAX_KNOWN]; /* maintain a CB index
+                                                        map to dev handle */
+#if (defined BTA_HH_LE_INCLUDED && BTA_HH_LE_INCLUDED == TRUE)
+    UINT8                   le_cb_index[BTA_HH_MAX_DEVICE]; /* maintain a CB index map to LE dev handle */
+    tBTA_GATTC_IF           gatt_if;
+#endif
+    tBTA_HH_CBACK       *p_cback;               /* Application callbacks */
+    tSDP_DISCOVERY_DB*      p_disc_db;
+    UINT8                   trace_level;            /* tracing level */
+    UINT8                   cnt_num;                /* connected device number */
+    BOOLEAN                 w4_disable;             /* w4 disable flag */
+}
+tBTA_HH_CB;
+
+#if BTA_DYNAMIC_MEMORY == FALSE
+extern tBTA_HH_CB  bta_hh_cb;
+#else
+extern tBTA_HH_CB *bta_hh_cb_ptr;
+#define bta_hh_cb (*bta_hh_cb_ptr)
+#endif
+
+/* from bta_hh_cfg.c */
+extern tBTA_HH_CFG *p_bta_hh_cfg;
+
+/*****************************************************************************
+**  Function prototypes
+*****************************************************************************/
+extern BOOLEAN bta_hh_hdl_event(BT_HDR *p_msg);
+extern void bta_hh_sm_execute(tBTA_HH_DEV_CB *p_cb, UINT16 event,
+                              tBTA_HH_DATA *p_data);
+
+/* action functions */
+extern void bta_hh_api_disc_act(tBTA_HH_DEV_CB *p_cb, tBTA_HH_DATA *p_data);
+#ifdef BLUETOOTH_RTK
+extern void bta_hh_le_api_disc_only_act(tBTA_HH_DEV_CB *p_cb);
+#endif
+extern void bta_hh_open_act(tBTA_HH_DEV_CB *p_cb, tBTA_HH_DATA *p_data);
+extern void bta_hh_close_act(tBTA_HH_DEV_CB *p_cb, tBTA_HH_DATA *p_data);
+extern void bta_hh_data_act(tBTA_HH_DEV_CB *p_cb, tBTA_HH_DATA * p_data);
+extern void bta_hh_ctrl_dat_act(tBTA_HH_DEV_CB *p_cb, tBTA_HH_DATA * p_data);
+extern void bta_hh_start_sdp(tBTA_HH_DEV_CB *p_cb, tBTA_HH_DATA *p_data);
+extern void bta_hh_sdp_cmpl(tBTA_HH_DEV_CB *p_cb, tBTA_HH_DATA *p_data);
+extern void bta_hh_write_dev_act(tBTA_HH_DEV_CB *p_cb, tBTA_HH_DATA *p_data);
+extern void bta_hh_get_dscp_act(tBTA_HH_DEV_CB *p_cb, tBTA_HH_DATA *p_data);
+extern void bta_hh_handsk_act(tBTA_HH_DEV_CB *p_cb, tBTA_HH_DATA *p_data);
+extern void bta_hh_maint_dev_act(tBTA_HH_DEV_CB *p_cb, tBTA_HH_DATA *p_data);
+extern void bta_hh_open_cmpl_act(tBTA_HH_DEV_CB *p_cb, tBTA_HH_DATA *p_data);
+extern void bta_hh_open_failure(tBTA_HH_DEV_CB *p_cb, tBTA_HH_DATA *p_data);
+
+/* utility functions */
+extern UINT8  bta_hh_find_cb(BD_ADDR bda);
+extern void bta_hh_parse_keybd_rpt(tBTA_HH_BOOT_RPT *p_kb_data,
+             UINT8 *p_report, UINT16 report_len);
+extern void bta_hh_parse_mice_rpt(tBTA_HH_BOOT_RPT *p_kb_data,
+                                  UINT8 *p_report, UINT16 report_len);
+extern BOOLEAN bta_hh_tod_spt(tBTA_HH_DEV_CB *p_cb,UINT8 sub_class);
+extern void bta_hh_clean_up_kdev(tBTA_HH_DEV_CB *p_cb);
+
+extern void bta_hh_add_device_to_list(tBTA_HH_DEV_CB *p_cb, UINT8 handle,
+                                      UINT16 attr_mask,
+                                      tHID_DEV_DSCP_INFO *p_dscp_info,
+                                      UINT8 sub_class, UINT16 max_latency, UINT16 min_tout, UINT8 app_id);
+extern void bta_hh_update_di_info(tBTA_HH_DEV_CB *p_cb, UINT16 vendor_id, UINT16 product_id,
+                           UINT16 version, UINT8 flag);
+extern void bta_hh_cleanup_disable(tBTA_HH_STATUS status);
+
+extern UINT8 bta_hh_dev_handle_to_cb_idx(UINT8 dev_handle);
+
+/* action functions used outside state machine */
+extern void bta_hh_api_enable(tBTA_HH_DATA *p_data);
+extern void bta_hh_api_disable(void);
+extern void bta_hh_disc_cmpl(void);
+
+extern tBTA_HH_STATUS bta_hh_read_ssr_param(BD_ADDR bd_addr, UINT16 *p_max_ssr_lat, UINT16 *p_min_ssr_tout);
+
+/* functions for LE HID */
+extern void bta_hh_le_enable(void);
+extern BOOLEAN bta_hh_le_is_hh_gatt_if(tBTA_GATTC_IF client_if);
+extern void bta_hh_le_deregister(void);
+extern BOOLEAN bta_hh_is_le_device(tBTA_HH_DEV_CB *p_cb, BD_ADDR remote_bda);
+extern void bta_hh_le_open_conn(tBTA_HH_DEV_CB *p_cb, BD_ADDR remote_bda);
+extern void bta_hh_le_api_disc_act(tBTA_HH_DEV_CB *p_cb);
+#ifdef BLUETOOTH_RTK
+extern void bta_hh_le_api_disc_only_act(tBTA_HH_DEV_CB *p_cb);
+#endif
+extern void bta_hh_le_get_dscp_act(tBTA_HH_DEV_CB *p_cb);
+extern void bta_hh_le_write_dev_act(tBTA_HH_DEV_CB *p_cb, tBTA_HH_DATA *p_data);
+extern UINT8 bta_hh_le_add_device(tBTA_HH_DEV_CB *p_cb, tBTA_HH_MAINT_DEV *p_dev_info);
+extern void bta_hh_le_remove_dev_bg_conn(tBTA_HH_DEV_CB *p_cb);
+extern void bta_hh_le_open_fail(tBTA_HH_DEV_CB *p_cb, tBTA_HH_DATA *p_data);
+extern void bta_hh_gatt_open(tBTA_HH_DEV_CB *p_cb, tBTA_HH_DATA *p_data);
+extern void bta_hh_gatt_close(tBTA_HH_DEV_CB *p_cb, tBTA_HH_DATA *p_data);
+extern void bta_hh_start_security(tBTA_HH_DEV_CB *p_cb, tBTA_HH_DATA *p_buf);
+extern void bta_hh_start_srvc_discovery(tBTA_HH_DEV_CB *p_cb, tBTA_HH_DATA *p_buf);
+extern void bta_hh_w4_le_read_char_cmpl(tBTA_HH_DEV_CB *p_cb, tBTA_HH_DATA *p_buf);
+extern void bta_hh_le_read_char_cmpl(tBTA_HH_DEV_CB *p_cb, tBTA_HH_DATA *p_buf);
+extern void bta_hh_w4_le_read_descr_cmpl(tBTA_HH_DEV_CB *p_cb, tBTA_HH_DATA *p_buf);
+extern void bta_hh_le_read_descr_cmpl(tBTA_HH_DEV_CB *p_cb, tBTA_HH_DATA *p_buf);
+extern void bta_hh_w4_le_write_cmpl(tBTA_HH_DEV_CB *p_cb, tBTA_HH_DATA *p_buf);
+extern void bta_hh_le_write_cmpl(tBTA_HH_DEV_CB *p_cb, tBTA_HH_DATA *p_buf);
+extern void bta_hh_le_write_char_descr_cmpl(tBTA_HH_DEV_CB *p_cb, tBTA_HH_DATA *p_buf);
+extern void bta_hh_start_security(tBTA_HH_DEV_CB *p_cb, tBTA_HH_DATA *p_buf);
+extern void bta_hh_security_cmpl(tBTA_HH_DEV_CB *p_cb, tBTA_HH_DATA *p_buf);
+extern void bta_hh_le_update_scpp(tBTA_HH_DEV_CB *p_cb, tBTA_HH_DATA *p_buf);
+extern void bta_hh_le_notify_enc_cmpl(tBTA_HH_DEV_CB *p_cb, tBTA_HH_DATA *p_data);
+extern void bta_hh_ci_load_rpt (tBTA_HH_DEV_CB *p_cb, tBTA_HH_DATA *p_buf);
+
+#ifdef BLUETOOTH_RTK
+extern void bta_hh_le_deregister_input_notif(tBTA_HH_DEV_CB *p_dev_cb, UINT8 proto_mode, BOOLEAN register_ba);
+#endif
+
+#if BTA_HH_DEBUG
+extern void bta_hh_trace_dev_db(void);
+#endif
+
+#endif
+
diff --git a/rtkbt/code/bt/bta/hh/bta_hh_le.c b/rtkbt/code/bt/bta/hh/bta_hh_le.c
new file mode 100755
index 0000000..53283cf
--- /dev/null
+++ b/rtkbt/code/bt/bta/hh/bta_hh_le.c
@@ -0,0 +1,2947 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2013 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_bta_hh"
+
+#include "bta_api.h"
+#include "bta_hh_int.h"
+
+#if (defined BTA_HH_LE_INCLUDED && BTA_HH_LE_INCLUDED == TRUE)
+
+#include <string.h>
+
+#include "bta_api.h"
+#include "bta_gatt_api.h"
+#include "bta_hh_co.h"
+#include "btm_api.h"
+#include "btm_ble_api.h"
+#include "btm_int.h"
+#include "osi/include/log.h"
+#include "srvc_api.h"
+#include "stack/include/l2c_api.h"
+#include "utl.h"
+#ifdef BLUETOOTH_RTK_COEX
+#include "rtk_parse.h"
+#endif
+#ifdef BLUETOOTH_RTK_API
+#include "rtkbt_api.h"
+#endif
+
+#ifndef BTA_HH_LE_RECONN
+#define BTA_HH_LE_RECONN    TRUE
+#endif
+
+#define BTA_HH_APP_ID_LE            0xff
+
+#define BTA_HH_LE_RPT_TYPE_VALID(x)     ((x) <= BTA_LE_HID_RPT_FEATURE && (x)>=BTA_LE_HID_RPT_INPUT)
+
+#define BTA_HH_LE_PROTO_BOOT_MODE      0x00
+#define BTA_HH_LE_PROTO_REPORT_MODE      0x01
+
+#define BTA_LE_HID_RTP_UUID_MAX     5
+static const UINT16 bta_hh_uuid_to_rtp_type[BTA_LE_HID_RTP_UUID_MAX][2] =
+{
+    {GATT_UUID_HID_REPORT,       BTA_HH_RPTT_INPUT},
+    {GATT_UUID_HID_BT_KB_INPUT,  BTA_HH_RPTT_INPUT},
+    {GATT_UUID_HID_BT_KB_OUTPUT, BTA_HH_RPTT_OUTPUT},
+    {GATT_UUID_HID_BT_MOUSE_INPUT, BTA_HH_RPTT_INPUT},
+    {GATT_UUID_BATTERY_LEVEL,      BTA_HH_RPTT_INPUT}
+};
+
+#ifdef BLUETOOTH_RTK
+void bta_hh_clear_service_cache(tBTA_HH_DEV_CB *p_cb);
+#endif
+static void bta_hh_gattc_callback(tBTA_GATTC_EVT event, tBTA_GATTC *p_data);
+static void bta_hh_le_register_scpp_notif(tBTA_HH_DEV_CB *p_dev_cb, tBTA_GATT_STATUS status);
+static void bta_hh_le_register_scpp_notif_cmpl(tBTA_HH_DEV_CB *p_dev_cb, tBTA_GATT_STATUS status);
+static void bta_hh_le_add_dev_bg_conn(tBTA_HH_DEV_CB *p_cb, BOOLEAN check_bond);
+//TODO(jpawlowski): uncomment when fixed
+// static void bta_hh_process_cache_rpt (tBTA_HH_DEV_CB *p_cb,
+//                                       tBTA_HH_RPT_CACHE_ENTRY *p_rpt_cache,
+//                                       UINT8 num_rpt);
+
+#define GATT_READ_CHAR 0
+#define GATT_READ_DESC 1
+#define GATT_WRITE_CHAR 2
+#define GATT_WRITE_DESC 3
+
+/* Holds pending GATT operations */
+typedef struct {
+    UINT8 type;
+    UINT16 conn_id;
+    UINT16 handle;
+
+    /* write-specific fields */
+    tBTA_GATTC_WRITE_TYPE write_type;
+    UINT16  len;
+    UINT8   p_value[GATT_MAX_ATTR_LEN];
+} gatt_operation;
+
+static list_t *gatt_op_queue = NULL; // list of gatt_operation
+static list_t *gatt_op_queue_executing = NULL; // list of UINT16 connection ids that currently execute
+
+static void mark_as_executing(UINT16 conn_id) {
+    UINT16 *executing_conn_id = osi_malloc(sizeof(UINT16));
+    *executing_conn_id = conn_id;
+    if (!gatt_op_queue_executing)
+        gatt_op_queue_executing = list_new(osi_free);
+
+    list_append(gatt_op_queue_executing, executing_conn_id);
+}
+
+static bool rm_exec_conn_id(void *data, void *context) {
+    UINT16 *conn_id = context;
+    UINT16 *conn_id2 = data;
+    if (*conn_id == *conn_id2)
+        list_remove(gatt_op_queue_executing, data);
+
+    return TRUE;
+}
+
+static void mark_as_not_executing(UINT16 conn_id) {
+    if (gatt_op_queue_executing)
+        list_foreach(gatt_op_queue_executing, rm_exec_conn_id, &conn_id);
+}
+
+static bool exec_list_contains(void *data, void *context) {
+    UINT16 *conn_id = context;
+    UINT16 *conn_id2 = data;
+    if (*conn_id == *conn_id2)
+        return FALSE;
+
+    return TRUE;
+}
+
+static bool rm_op_by_conn_id(void *data, void *context) {
+    UINT16 *conn_id = context;
+    gatt_operation *op = data;
+    if(op->conn_id == *conn_id)
+        list_remove(gatt_op_queue, data);
+
+    return TRUE;
+}
+
+static void gatt_op_queue_clean(UINT16 conn_id) {
+    if (gatt_op_queue)
+        list_foreach(gatt_op_queue, rm_op_by_conn_id, &conn_id);
+
+    mark_as_not_executing(conn_id);
+}
+
+static bool find_op_by_conn_id(void *data, void *context) {
+    UINT16 *conn_id = context;
+    gatt_operation *op = data;
+    if(op->conn_id == *conn_id)
+        return FALSE;
+
+    return TRUE;
+}
+
+static void gatt_execute_next_op(UINT16 conn_id) {
+    APPL_TRACE_DEBUG("%s:", __func__, conn_id);
+    if (!gatt_op_queue || list_is_empty(gatt_op_queue)) {
+        APPL_TRACE_DEBUG("%s: op queue is empty", __func__);
+        return;
+    }
+
+    list_node_t *op_node = list_foreach(gatt_op_queue, find_op_by_conn_id, &conn_id);
+    if (op_node == NULL) {
+        APPL_TRACE_DEBUG("%s: no more operations queued for conn_id %d", __func__, conn_id);
+        return;
+    }
+    gatt_operation *op = list_node(op_node);
+
+    if (gatt_op_queue_executing && list_foreach(gatt_op_queue_executing, exec_list_contains, &conn_id)) {
+        APPL_TRACE_DEBUG("%s: can't enqueue next op, already executing", __func__);
+        return;
+    }
+
+    if (op->type == GATT_READ_CHAR) {
+        const tBTA_GATTC_CHARACTERISTIC *p_char = BTA_GATTC_GetCharacteristic(op->conn_id, op->handle);
+
+        mark_as_executing(conn_id);
+        BTA_GATTC_ReadCharacteristic(op->conn_id, p_char->handle, BTA_GATT_AUTH_REQ_NONE);
+        list_remove(gatt_op_queue, op);
+
+    } else if (op->type == GATT_READ_DESC) {
+        const tBTA_GATTC_DESCRIPTOR *p_desc = BTA_GATTC_GetDescriptor(op->conn_id, op->handle);
+
+        mark_as_executing(conn_id);
+        BTA_GATTC_ReadCharDescr(op->conn_id, p_desc->handle, BTA_GATT_AUTH_REQ_NONE);
+        list_remove(gatt_op_queue, op);
+    } else if (op->type == GATT_WRITE_CHAR) {
+        const tBTA_GATTC_CHARACTERISTIC *p_char = BTA_GATTC_GetCharacteristic(op->conn_id, op->handle);
+        mark_as_executing(conn_id);
+        BTA_GATTC_WriteCharValue(op->conn_id, p_char->handle, op->write_type, op->len,
+                                 op->p_value, BTA_GATT_AUTH_REQ_NONE);
+
+        list_remove(gatt_op_queue, op);
+    } else if (op->type == GATT_WRITE_DESC) {
+        const tBTA_GATTC_DESCRIPTOR *p_desc = BTA_GATTC_GetDescriptor(op->conn_id, op->handle);
+
+        tBTA_GATT_UNFMT value;
+        value.len = op->len;
+        value.p_value = op->p_value;
+
+        mark_as_executing(conn_id);
+        BTA_GATTC_WriteCharDescr(op->conn_id, p_desc->handle, BTA_GATTC_TYPE_WRITE,
+                                 &value, BTA_GATT_AUTH_REQ_NONE);
+        list_remove(gatt_op_queue, op);
+    }
+}
+
+static void gatt_queue_read_op(UINT8 op_type, UINT16 conn_id, UINT16 handle) {
+  if (gatt_op_queue == NULL) {
+    gatt_op_queue = list_new(osi_free);
+  }
+
+  gatt_operation *op = osi_malloc(sizeof(gatt_operation));
+  op->type = op_type;
+  op->conn_id = conn_id;
+  op->handle = handle;
+
+  list_append(gatt_op_queue, op);
+  gatt_execute_next_op(conn_id);
+}
+
+static void gatt_queue_write_op(UINT8 op_type, UINT16 conn_id, UINT16 handle, UINT16 len,
+                        UINT8 *p_value, tBTA_GATTC_WRITE_TYPE write_type) {
+  if (gatt_op_queue == NULL) {
+    gatt_op_queue = list_new(osi_free);
+  }
+
+  gatt_operation *op = osi_malloc(sizeof(gatt_operation));
+  op->type = op_type;
+  op->conn_id = conn_id;
+  op->handle = handle;
+  op->write_type = write_type;
+  op->len = len;
+  memcpy(op->p_value, p_value, len);
+
+  list_append(gatt_op_queue, op);
+  gatt_execute_next_op(conn_id);
+}
+
+#if BTA_HH_DEBUG == TRUE
+static const char *bta_hh_le_rpt_name[4] =
+{
+    "UNKNOWN",
+    "INPUT",
+    "OUTPUT",
+    "FEATURE"
+};
+
+/*******************************************************************************
+**
+** Function         bta_hh_le_hid_report_dbg
+**
+** Description      debug function to print out all HID report available on remote
+**                  device.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_hh_le_hid_report_dbg(tBTA_HH_DEV_CB *p_cb)
+{
+    APPL_TRACE_DEBUG("%s: HID Report DB", __func__);
+
+    if (!p_cb->hid_srvc.in_use)
+        return;
+
+    tBTA_HH_LE_RPT  *p_rpt = &p_cb->hid_srvc.report[0];
+
+    for (int j = 0; j < BTA_HH_LE_RPT_MAX; j ++, p_rpt++)
+    {
+        char *  rpt_name = "Unknown";
+
+        if (!p_rpt->in_use)
+            break;
+
+        if (p_rpt->uuid == GATT_UUID_HID_REPORT)
+            rpt_name = "Report";
+        if (p_rpt->uuid == GATT_UUID_HID_BT_KB_INPUT)
+            rpt_name = "Boot KB Input";
+        if (p_rpt->uuid == GATT_UUID_HID_BT_KB_OUTPUT)
+            rpt_name = "Boot KB Output";
+        if (p_rpt->uuid == GATT_UUID_HID_BT_MOUSE_INPUT)
+            rpt_name = "Boot MI Input";
+
+        APPL_TRACE_DEBUG("\t\t [%s- 0x%04x] [Type: %s], [ReportID: %d] [srvc_inst_id: %d] [char_inst_id: %d] [Clt_cfg: %d]",
+            rpt_name,
+            p_rpt->uuid ,
+            ((p_rpt->rpt_type < 4) ? bta_hh_le_rpt_name[p_rpt->rpt_type] : "UNKNOWN"),
+            p_rpt->rpt_id,
+            p_rpt->srvc_inst_id,
+            p_rpt->char_inst_id,
+            p_rpt->client_cfg_value);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_uuid_to_str
+**
+** Description
+**
+** Returns          void
+**
+*******************************************************************************/
+static char *bta_hh_uuid_to_str(UINT16 uuid)
+{
+    switch(uuid)
+    {
+        case GATT_UUID_HID_INFORMATION:
+            return "GATT_UUID_HID_INFORMATION";
+        case GATT_UUID_HID_REPORT_MAP:
+            return "GATT_UUID_HID_REPORT_MAP";
+        case GATT_UUID_HID_CONTROL_POINT:
+            return "GATT_UUID_HID_CONTROL_POINT";
+        case GATT_UUID_HID_REPORT:
+            return "GATT_UUID_HID_REPORT";
+        case GATT_UUID_HID_PROTO_MODE:
+            return "GATT_UUID_HID_PROTO_MODE";
+        case GATT_UUID_HID_BT_KB_INPUT:
+            return "GATT_UUID_HID_BT_KB_INPUT";
+        case GATT_UUID_HID_BT_KB_OUTPUT:
+            return "GATT_UUID_HID_BT_KB_OUTPUT";
+        case GATT_UUID_HID_BT_MOUSE_INPUT:
+            return "GATT_UUID_HID_BT_MOUSE_INPUT";
+        case GATT_UUID_CHAR_CLIENT_CONFIG:
+            return "GATT_UUID_CHAR_CLIENT_CONFIG";
+        case GATT_UUID_EXT_RPT_REF_DESCR:
+            return "GATT_UUID_EXT_RPT_REF_DESCR";
+        case GATT_UUID_RPT_REF_DESCR:
+            return "GATT_UUID_RPT_REF_DESCR";
+        default:
+            return "Unknown UUID";
+    }
+}
+
+#endif
+/*******************************************************************************
+**
+** Function         bta_hh_le_enable
+**
+** Description      initialize LE HID related functionality
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hh_le_enable(void)
+{
+    char       app_name[LEN_UUID_128 + 1];
+    tBT_UUID    app_uuid = {LEN_UUID_128,{0}};
+    UINT8       xx;
+
+    bta_hh_cb.gatt_if = BTA_GATTS_INVALID_IF;
+
+    for (xx = 0; xx < BTA_HH_MAX_DEVICE; xx ++)
+        bta_hh_cb.le_cb_index[xx]       = BTA_HH_IDX_INVALID;
+
+    memset (app_name, 0, LEN_UUID_128 + 1);
+    strncpy(app_name, "BTA HH OVER LE", LEN_UUID_128);
+
+    memcpy((void *)app_uuid.uu.uuid128, (void *)app_name, LEN_UUID_128);
+
+    BTA_GATTC_AppRegister(&app_uuid, bta_hh_gattc_callback);
+
+    return;
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_le_register_cmpl
+**
+** Description      BTA HH register with BTA GATTC completed
+**
+** Parameters:
+**
+*******************************************************************************/
+void bta_hh_le_register_cmpl(tBTA_GATTC_REG *p_reg)
+{
+    tBTA_HH_STATUS      status = BTA_HH_ERR;
+
+    if (p_reg->status == BTA_GATT_OK)
+    {
+        bta_hh_cb.gatt_if = p_reg->client_if;
+        status = BTA_HH_OK;
+    }
+    else
+        bta_hh_cb.gatt_if = BTA_GATTS_INVALID_IF;
+
+    /* signal BTA call back event */
+    (* bta_hh_cb.p_cback)(BTA_HH_ENABLE_EVT, (tBTA_HH *)&status);
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_le_is_hh_gatt_if
+**
+** Description      Check to see if client_if is BTA HH LE GATT interface
+**
+**
+** Returns          whether it is HH GATT IF
+**
+*******************************************************************************/
+BOOLEAN bta_hh_le_is_hh_gatt_if(tBTA_GATTC_IF client_if)
+{
+    return (bta_hh_cb.gatt_if == client_if);
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_le_deregister
+**
+** Description      De-register BTA HH from BTA GATTC
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hh_le_deregister(void)
+{
+    BTA_GATTC_AppDeregister(bta_hh_cb.gatt_if);
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_is_le_device
+**
+** Description      Check to see if the remote device is a LE only device
+**
+** Parameters:
+**
+*******************************************************************************/
+BOOLEAN bta_hh_is_le_device(tBTA_HH_DEV_CB *p_cb, BD_ADDR remote_bda)
+{
+    p_cb->is_le_device = BTM_UseLeLink (remote_bda);
+
+    return p_cb->is_le_device;
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_le_open_conn
+**
+** Description      open a GATT connection first.
+**
+** Parameters:
+**
+*******************************************************************************/
+void bta_hh_le_open_conn(tBTA_HH_DEV_CB *p_cb, BD_ADDR remote_bda)
+{
+    /* update cb_index[] map */
+    p_cb->hid_handle = BTA_HH_GET_LE_DEV_HDL(p_cb->index);
+    memcpy(p_cb->addr, remote_bda, BD_ADDR_LEN);
+    bta_hh_cb.le_cb_index[BTA_HH_GET_LE_CB_IDX(p_cb->hid_handle)] = p_cb->index;
+    p_cb->in_use = TRUE;
+
+    BTA_GATTC_Open(bta_hh_cb.gatt_if, remote_bda, TRUE, BTA_GATT_TRANSPORT_LE);
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_le_find_dev_cb_by_conn_id
+**
+** Description      Utility function find a device control block by connection ID.
+**
+*******************************************************************************/
+tBTA_HH_DEV_CB * bta_hh_le_find_dev_cb_by_conn_id(UINT16 conn_id)
+{
+    UINT8   i;
+    tBTA_HH_DEV_CB *p_dev_cb = &bta_hh_cb.kdev[0];
+
+    for (i = 0; i < BTA_HH_MAX_DEVICE; i ++, p_dev_cb ++)
+    {
+        if (p_dev_cb->in_use  && p_dev_cb->conn_id == conn_id)
+            return p_dev_cb;
+    }
+    return NULL;
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_le_find_dev_cb_by_bda
+**
+** Description      Utility function find a device control block by BD address.
+**
+*******************************************************************************/
+tBTA_HH_DEV_CB * bta_hh_le_find_dev_cb_by_bda(BD_ADDR bda)
+{
+    UINT8   i;
+    tBTA_HH_DEV_CB *p_dev_cb = &bta_hh_cb.kdev[0];
+
+    for (i = 0; i < BTA_HH_MAX_DEVICE; i ++, p_dev_cb ++)
+    {
+        if (p_dev_cb->in_use  &&
+            memcmp(p_dev_cb->addr, bda, BD_ADDR_LEN) == 0)
+            return p_dev_cb;
+    }
+    return NULL;
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_le_find_service_inst_by_battery_inst_id
+**
+** Description      find HID service instance ID by battery service instance ID
+**
+*******************************************************************************/
+UINT8 bta_hh_le_find_service_inst_by_battery_inst_id(tBTA_HH_DEV_CB *p_cb, UINT8 ba_inst_id)
+{
+    if (p_cb->hid_srvc.in_use &&
+        p_cb->hid_srvc.incl_srvc_inst == ba_inst_id)
+    {
+        return p_cb->hid_srvc.srvc_inst_id;
+    }
+    return BTA_HH_IDX_INVALID;
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_le_find_report_entry
+**
+** Description      find the report entry by service instance and report UUID and
+**                  instance ID
+**
+*******************************************************************************/
+tBTA_HH_LE_RPT * bta_hh_le_find_report_entry(tBTA_HH_DEV_CB *p_cb,
+                                             UINT8  srvc_inst_id,  /* service instance ID */
+                                             UINT16 rpt_uuid,
+                                             UINT8  char_inst_id)
+{
+    UINT8   i;
+    UINT8   hid_inst_id = srvc_inst_id;
+    tBTA_HH_LE_RPT *p_rpt;
+
+    if (rpt_uuid == GATT_UUID_BATTERY_LEVEL)
+    {
+        hid_inst_id = bta_hh_le_find_service_inst_by_battery_inst_id(p_cb, srvc_inst_id);
+
+        if (hid_inst_id == BTA_HH_IDX_INVALID)
+            return NULL;
+    }
+
+    p_rpt = &p_cb->hid_srvc.report[0];
+
+    for (i = 0; i < BTA_HH_LE_RPT_MAX; i ++, p_rpt ++)
+    {
+        if (p_rpt->uuid == rpt_uuid &&
+            p_rpt->srvc_inst_id == srvc_inst_id &&
+            p_rpt->char_inst_id == char_inst_id)
+        {
+
+            return p_rpt;
+        }
+    }
+    return NULL;
+
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_le_find_rpt_by_idtype
+**
+** Description      find a report entry by report ID and protocol mode
+**
+** Returns          void
+**
+*******************************************************************************/
+tBTA_HH_LE_RPT * bta_hh_le_find_rpt_by_idtype(tBTA_HH_LE_RPT*p_head, UINT8 mode,
+                                              tBTA_HH_RPT_TYPE r_type, UINT8 rpt_id)
+{
+    tBTA_HH_LE_RPT *p_rpt = p_head;
+    UINT8   i;
+
+#if BTA_HH_DEBUG == TRUE
+    APPL_TRACE_DEBUG("bta_hh_le_find_rpt_by_idtype: r_type: %d rpt_id: %d", r_type, rpt_id);
+#endif
+
+    for (i = 0 ; i < BTA_HH_LE_RPT_MAX; i ++, p_rpt++)
+    {
+        if (p_rpt->in_use && p_rpt->rpt_id == rpt_id && r_type == p_rpt->rpt_type)
+        {
+            /* return battery report w/o condition */
+            if (p_rpt->uuid == GATT_UUID_BATTERY_LEVEL)
+                return p_rpt;
+
+            if (mode == BTA_HH_PROTO_RPT_MODE && p_rpt->uuid == GATT_UUID_HID_REPORT)
+                return p_rpt;
+
+            if ( mode ==BTA_HH_PROTO_BOOT_MODE &&
+                (p_rpt->uuid >= GATT_UUID_HID_BT_KB_INPUT && p_rpt->uuid <= GATT_UUID_HID_BT_MOUSE_INPUT))
+                return p_rpt;
+        }
+    }
+    return NULL;
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_le_find_alloc_report_entry
+**
+** Description      find or allocate a report entry in the HID service report list.
+**
+*******************************************************************************/
+tBTA_HH_LE_RPT * bta_hh_le_find_alloc_report_entry(tBTA_HH_DEV_CB *p_cb,
+                                                   UINT8 srvc_inst_id,
+                                                   UINT16 rpt_uuid,
+                                                   UINT8  inst_id)
+{
+    UINT8   i, hid_inst_id = srvc_inst_id;
+    tBTA_HH_LE_RPT *p_rpt;
+
+    if (rpt_uuid == GATT_UUID_BATTERY_LEVEL)
+    {
+        hid_inst_id = bta_hh_le_find_service_inst_by_battery_inst_id(p_cb, srvc_inst_id);
+
+        if (hid_inst_id == BTA_HH_IDX_INVALID)
+            return NULL;
+    }
+    p_rpt = &p_cb->hid_srvc.report[0];
+
+    for (i = 0; i < BTA_HH_LE_RPT_MAX; i ++, p_rpt ++)
+    {
+        if (!p_rpt->in_use ||
+            (p_rpt->uuid == rpt_uuid &&
+             p_rpt->srvc_inst_id == srvc_inst_id &&
+             p_rpt->char_inst_id == inst_id))
+        {
+            if (!p_rpt->in_use)
+            {
+                p_rpt->in_use   = TRUE;
+                p_rpt->index    = i;
+                p_rpt->srvc_inst_id = srvc_inst_id;
+                p_rpt->char_inst_id = inst_id;
+                p_rpt->uuid     = rpt_uuid;
+
+                /* assign report type */
+                for (i = 0; i < BTA_LE_HID_RTP_UUID_MAX; i ++)
+                {
+                    if (bta_hh_uuid_to_rtp_type[i][0] == rpt_uuid)
+                    {
+                        p_rpt->rpt_type = (tBTA_HH_RPT_TYPE)bta_hh_uuid_to_rtp_type[i][1];
+
+                        if (rpt_uuid == GATT_UUID_HID_BT_KB_INPUT || rpt_uuid == GATT_UUID_HID_BT_KB_OUTPUT)
+                            p_rpt->rpt_id = BTA_HH_KEYBD_RPT_ID;
+
+                        if (rpt_uuid == GATT_UUID_HID_BT_MOUSE_INPUT)
+                            p_rpt->rpt_id = BTA_HH_MOUSE_RPT_ID;
+
+                        break;
+                    }
+                }
+            }
+            return p_rpt;
+        }
+    }
+    return NULL;
+}
+
+static tBTA_GATTC_DESCRIPTOR *find_descriptor_by_short_uuid(UINT16 conn_id,
+                                                     UINT16 char_handle,
+                                                     UINT16 short_uuid) {
+    const tBTA_GATTC_CHARACTERISTIC *p_char =
+                BTA_GATTC_GetCharacteristic(conn_id, char_handle);
+
+    if (!p_char) {
+        LOG_WARN(LOG_TAG, "%s No such characteristic: %d", __func__, char_handle);
+        return NULL;
+    }
+
+    if (!p_char->descriptors || list_is_empty(p_char->descriptors))
+        return NULL;
+
+    for (list_node_t *dn = list_begin(p_char->descriptors);
+         dn != list_end(p_char->descriptors); dn = list_next(dn)) {
+        tBTA_GATTC_DESCRIPTOR *p_desc = list_node(dn);
+
+        if (p_char->uuid.len == LEN_UUID_16 &&
+            p_desc->uuid.uu.uuid16 == short_uuid)
+            return p_desc;
+    }
+
+    return NULL;
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_le_read_char_dscrpt
+**
+** Description      read characteristic descriptor
+**
+*******************************************************************************/
+static tBTA_HH_STATUS bta_hh_le_read_char_dscrpt(tBTA_HH_DEV_CB *p_cb, UINT16 char_handle, UINT16 short_uuid)
+{
+    const tBTA_GATTC_DESCRIPTOR *p_desc = find_descriptor_by_short_uuid(p_cb->conn_id, char_handle, short_uuid);
+    if (!p_desc)
+        return BTA_HH_ERR;
+
+    gatt_queue_read_op(GATT_READ_DESC, p_cb->conn_id, p_desc->handle);
+    return BTA_HH_OK;
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_le_save_rpt_ref
+**
+** Description      save report reference information and move to next one.
+**
+** Parameters:
+**
+*******************************************************************************/
+void bta_hh_le_save_rpt_ref(tBTA_HH_DEV_CB *p_dev_cb, tBTA_HH_LE_RPT  *p_rpt,
+                            tBTA_GATTC_READ *p_data)
+{
+    /* if the length of the descriptor value is right, parse it */
+    if (p_data->status == BTA_GATT_OK &&
+        p_data->p_value && p_data->p_value->len == 2)
+    {
+        UINT8 *pp = p_data->p_value->p_value;
+
+        STREAM_TO_UINT8(p_rpt->rpt_id, pp);
+        STREAM_TO_UINT8(p_rpt->rpt_type, pp);
+
+        if (p_rpt->rpt_type > BTA_HH_RPTT_FEATURE) /* invalid report type */
+            p_rpt->rpt_type = BTA_HH_RPTT_RESRV;
+
+#if BTA_HH_DEBUG == TRUE
+        APPL_TRACE_DEBUG("%s: report ID: %d", __func__, p_rpt->rpt_id);
+#endif
+        tBTA_HH_RPT_CACHE_ENTRY rpt_entry;
+        rpt_entry.rpt_id    = p_rpt->rpt_id;
+        rpt_entry.rpt_type  = p_rpt->rpt_type;
+        rpt_entry.rpt_uuid  = p_rpt->uuid;
+        rpt_entry.srvc_inst_id = p_rpt->srvc_inst_id;
+        rpt_entry.char_inst_id = p_rpt->char_inst_id;
+
+        bta_hh_le_co_rpt_info(p_dev_cb->addr,
+                              &rpt_entry,
+                              p_dev_cb->app_id);
+    }
+    else if (p_data->status == BTA_GATT_INSUF_AUTHENTICATION)
+    {
+        /* close connection right away */
+        p_dev_cb->status = BTA_HH_ERR_AUTH_FAILED;
+        /* close the connection and report service discovery complete with error */
+        bta_hh_le_api_disc_act(p_dev_cb);
+        return;
+    }
+
+    if (p_rpt->index < BTA_HH_LE_RPT_MAX - 1)
+        p_rpt ++;
+    else
+        p_rpt = NULL;
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_le_save_rpt_ref
+**
+** Description      save report reference information and move to next one.
+**
+** Parameters:
+**
+*******************************************************************************/
+void bta_hh_le_save_ext_rpt_ref(tBTA_HH_DEV_CB *p_dev_cb,
+                                tBTA_GATTC_READ *p_data)
+{
+    /* if the length of the descriptor value is right, parse it
+      assume it's a 16 bits UUID */
+    if (p_data->status == BTA_GATT_OK &&
+        p_data->p_value && p_data->p_value->len == 2) {
+        UINT8 *pp = p_data->p_value->p_value;
+        STREAM_TO_UINT16(p_dev_cb->hid_srvc.ext_rpt_ref, pp);
+
+#if BTA_HH_DEBUG == TRUE
+        APPL_TRACE_DEBUG("%s: External Report Reference UUID 0x%04x", __func__,
+                    p_dev_cb->hid_srvc.ext_rpt_ref);
+#endif
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_le_register_input_notif
+**
+** Description      Register for all notifications for the report applicable
+**                  for the protocol mode.
+**
+** Parameters:
+**
+*******************************************************************************/
+void bta_hh_le_register_input_notif(tBTA_HH_DEV_CB *p_dev_cb, UINT8 proto_mode, BOOLEAN register_ba)
+{
+    tBTA_HH_LE_RPT  *p_rpt = &p_dev_cb->hid_srvc.report[0];
+
+#if BTA_HH_DEBUG == TRUE
+    APPL_TRACE_DEBUG("%s: bta_hh_le_register_input_notif mode: %d", __func__, proto_mode);
+#endif
+
+    for (int i = 0; i < BTA_HH_LE_RPT_MAX; i ++, p_rpt ++)
+    {
+        if (p_rpt->rpt_type == BTA_HH_RPTT_INPUT)
+        {
+
+            if (register_ba && p_rpt->uuid == GATT_UUID_BATTERY_LEVEL)
+            {
+                BTA_GATTC_RegisterForNotifications(bta_hh_cb.gatt_if, p_dev_cb->addr,
+                                                   p_rpt->char_inst_id);
+            }
+            /* boot mode, deregister report input notification */
+            else if (proto_mode == BTA_HH_PROTO_BOOT_MODE)
+            {
+                if (p_rpt->uuid == GATT_UUID_HID_REPORT &&
+                    p_rpt->client_cfg_value == BTA_GATT_CLT_CONFIG_NOTIFICATION)
+                {
+                    APPL_TRACE_DEBUG("---> Deregister Report ID: %d", p_rpt->rpt_id);
+                    BTA_GATTC_DeregisterForNotifications(bta_hh_cb.gatt_if, p_dev_cb->addr,
+                                                         p_rpt->char_inst_id);
+                }
+                /* register boot reports notification */
+                else if (p_rpt->uuid == GATT_UUID_HID_BT_KB_INPUT ||
+                         p_rpt->uuid == GATT_UUID_HID_BT_MOUSE_INPUT)
+                {
+                    APPL_TRACE_DEBUG("<--- Register Boot Report ID: %d", p_rpt->rpt_id);
+                    BTA_GATTC_RegisterForNotifications(bta_hh_cb.gatt_if, p_dev_cb->addr,
+                                                       p_rpt->char_inst_id);
+                }
+            }
+            else if (proto_mode == BTA_HH_PROTO_RPT_MODE)
+            {
+                if ((p_rpt->uuid == GATT_UUID_HID_BT_KB_INPUT ||
+                    p_rpt->uuid == GATT_UUID_HID_BT_MOUSE_INPUT) &&
+                    p_rpt->client_cfg_value == BTA_GATT_CLT_CONFIG_NOTIFICATION)
+                {
+
+                    APPL_TRACE_DEBUG("---> Deregister Boot Report ID: %d", p_rpt->rpt_id);
+                    BTA_GATTC_DeregisterForNotifications(bta_hh_cb.gatt_if, p_dev_cb->addr,
+                                                         p_rpt->char_inst_id);
+                }
+                else if (p_rpt->uuid == GATT_UUID_HID_REPORT &&
+                         p_rpt->client_cfg_value == BTA_GATT_CLT_CONFIG_NOTIFICATION)
+                {
+                    APPL_TRACE_DEBUG("<--- Register Report ID: %d", p_rpt->rpt_id);
+                    BTA_GATTC_RegisterForNotifications(bta_hh_cb.gatt_if, p_dev_cb->addr,
+                                                       p_rpt->char_inst_id);
+                }
+            }
+            /*
+            else unknow protocol mode */
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_le_open_cmpl
+**
+** Description      HID over GATT connection sucessfully opened
+**
+*******************************************************************************/
+void bta_hh_le_open_cmpl(tBTA_HH_DEV_CB *p_cb)
+{
+    if ( p_cb->disc_active == BTA_HH_LE_DISC_NONE)
+    {
+#if BTA_HH_DEBUG
+        bta_hh_le_hid_report_dbg(p_cb);
+#endif
+#ifdef BLUETOOTH_RTK_API
+        rtkbt_api_Hook(RTKBT_HOOK_HH_LE_OPEN_CMPL,(void *) p_cb,sizeof(tBTA_HH_DEV_CB));
+#endif
+        bta_hh_le_register_input_notif(p_cb, p_cb->mode, TRUE);
+        bta_hh_sm_execute(p_cb, BTA_HH_OPEN_CMPL_EVT, NULL);
+
+#if (BTA_HH_LE_RECONN == TRUE)
+        if (p_cb->status == BTA_HH_OK)
+        {
+            bta_hh_le_add_dev_bg_conn(p_cb, TRUE);
+        }
+#endif
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_le_write_char_clt_cfg
+**
+** Description      Utility function to find and write client configuration of
+**                  a characteristic
+**
+*******************************************************************************/
+BOOLEAN bta_hh_le_write_char_clt_cfg(tBTA_HH_DEV_CB *p_cb,
+                                     UINT8 char_handle,
+                                     UINT16 clt_cfg_value)
+{
+    UINT8                      buf[2], *pp = buf;
+
+    tBTA_GATTC_DESCRIPTOR *p_desc = find_descriptor_by_short_uuid(p_cb->conn_id,
+                                       char_handle, GATT_UUID_CHAR_CLIENT_CONFIG);
+    if (!p_desc)
+        return FALSE;
+
+    UINT16_TO_STREAM(pp, clt_cfg_value);
+    gatt_queue_write_op(GATT_WRITE_DESC, p_cb->conn_id,
+                        p_desc->handle, 2, buf, BTA_GATTC_TYPE_WRITE);
+    return TRUE;
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_le_write_rpt_clt_cfg
+**
+** Description      write client configuration. This is only for input report
+**                  enable all input notification upon connection open.
+**
+*******************************************************************************/
+BOOLEAN bta_hh_le_write_rpt_clt_cfg(tBTA_HH_DEV_CB *p_cb, UINT8 srvc_inst_id)
+{
+    UINT8           i;
+    tBTA_HH_LE_RPT  *p_rpt = &p_cb->hid_srvc.report[p_cb->clt_cfg_idx];
+
+    for (i = p_cb->clt_cfg_idx; i < BTA_HH_LE_RPT_MAX && p_rpt->in_use; i ++, p_rpt ++)
+    {
+        /* enable notification for all input report, regardless mode */
+        if (p_rpt->rpt_type == BTA_HH_RPTT_INPUT)
+        {
+            if (bta_hh_le_write_char_clt_cfg(p_cb,
+                                             p_rpt->char_inst_id,
+                                             BTA_GATT_CLT_CONFIG_NOTIFICATION))
+            {
+                p_cb->clt_cfg_idx = i;
+                return TRUE;
+            }
+        }
+    }
+    p_cb->clt_cfg_idx = 0;
+
+    /* client configuration is completed, send open callback */
+    if (p_cb->state == BTA_HH_W4_CONN_ST)
+    {
+        p_cb->disc_active &= ~BTA_HH_LE_DISC_HIDS;
+
+        bta_hh_le_open_cmpl(p_cb);
+    }
+    return FALSE;
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_le_set_protocol_mode
+**
+** Description      Set remote device protocol mode.
+**
+*******************************************************************************/
+BOOLEAN bta_hh_le_set_protocol_mode(tBTA_HH_DEV_CB *p_cb, tBTA_HH_PROTO_MODE mode)
+{
+    tBTA_HH_CBDATA      cback_data;
+    BOOLEAN             exec = FALSE;
+
+    APPL_TRACE_DEBUG("%s attempt mode: %s", __func__,
+                     (mode == BTA_HH_PROTO_RPT_MODE)? "Report": "Boot");
+
+    cback_data.handle  = p_cb->hid_handle;
+    /* boot mode is not supported in the remote device */
+    if (p_cb->hid_srvc.proto_mode_handle == 0)
+    {
+        p_cb->mode  = BTA_HH_PROTO_RPT_MODE;
+
+        if (mode == BTA_HH_PROTO_BOOT_MODE)
+        {
+            APPL_TRACE_ERROR("Set Boot Mode failed!! No PROTO_MODE Char!");
+            cback_data.status = BTA_HH_ERR;
+        }
+        else
+        {
+            /* if set to report mode, need to de-register all input report notification */
+            bta_hh_le_register_input_notif(p_cb, p_cb->mode, FALSE);
+            cback_data.status = BTA_HH_OK;
+        }
+        if (p_cb->state == BTA_HH_W4_CONN_ST)
+        {
+            p_cb->status = (cback_data.status == BTA_HH_OK)? BTA_HH_OK: BTA_HH_ERR_PROTO;
+        }
+        else
+            (* bta_hh_cb.p_cback)(BTA_HH_SET_PROTO_EVT, (tBTA_HH *)&cback_data);
+    } else if (p_cb->mode != mode) {
+        p_cb->mode = mode;
+        mode = (mode == BTA_HH_PROTO_BOOT_MODE)? BTA_HH_LE_PROTO_BOOT_MODE : BTA_HH_LE_PROTO_REPORT_MODE;
+
+        gatt_queue_write_op(GATT_WRITE_CHAR, p_cb->conn_id, p_cb->hid_srvc.proto_mode_handle, 1,
+                            &mode, BTA_GATTC_TYPE_WRITE_NO_RSP);
+        exec        = TRUE;
+    }
+
+    return exec;
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_le_get_protocol_mode
+**
+** Description      Get remote device protocol mode.
+**
+*******************************************************************************/
+void bta_hh_le_get_protocol_mode(tBTA_HH_DEV_CB *p_cb)
+{
+    tBTA_HH_HSDATA    hs_data;
+    p_cb->w4_evt = BTA_HH_GET_PROTO_EVT;
+
+    if (p_cb->hid_srvc.in_use && p_cb->hid_srvc.proto_mode_handle != 0) {
+        gatt_queue_read_op(GATT_READ_CHAR, p_cb->conn_id, p_cb->hid_srvc.proto_mode_handle);
+        return;
+    }
+
+    /* no service support protocol_mode, by default report mode */
+    hs_data.status  = BTA_HH_OK;
+    hs_data.handle  = p_cb->hid_handle;
+    hs_data.rsp_data.proto_mode = BTA_HH_PROTO_RPT_MODE;
+    p_cb->w4_evt = 0;
+    (* bta_hh_cb.p_cback)(BTA_HH_GET_PROTO_EVT, (tBTA_HH *)&hs_data);
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_le_dis_cback
+**
+** Description      DIS read complete callback
+**
+** Parameters:
+**
+*******************************************************************************/
+void bta_hh_le_dis_cback(BD_ADDR addr, tDIS_VALUE *p_dis_value)
+{
+    tBTA_HH_DEV_CB *p_cb = bta_hh_le_find_dev_cb_by_bda(addr);
+
+
+    if (p_cb == NULL || p_dis_value == NULL)
+    {
+        APPL_TRACE_ERROR("received unexpected/error DIS callback");
+        return;
+    }
+
+    p_cb->disc_active &= ~BTA_HH_LE_DISC_DIS;
+    /* plug in the PnP info for this device */
+    if (p_dis_value->attr_mask & DIS_ATTR_PNP_ID_BIT)
+    {
+#if BTA_HH_DEBUG == TRUE
+        APPL_TRACE_DEBUG("Plug in PnP info: product_id = %02x, vendor_id = %04x, version = %04x",
+                p_dis_value->pnp_id.product_id,
+                p_dis_value->pnp_id.vendor_id,
+                p_dis_value->pnp_id.product_version);
+#endif
+        p_cb->dscp_info.product_id = p_dis_value->pnp_id.product_id;
+        p_cb->dscp_info.vendor_id  = p_dis_value->pnp_id.vendor_id;
+        p_cb->dscp_info.version    = p_dis_value->pnp_id.product_version;
+    }
+    bta_hh_le_open_cmpl(p_cb);
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_le_pri_service_discovery
+**
+** Description      Initialize GATT discovery on the remote LE HID device by opening
+**                  a GATT connection first.
+**
+** Parameters:
+**
+*******************************************************************************/
+void bta_hh_le_pri_service_discovery(tBTA_HH_DEV_CB *p_cb)
+{
+    tBT_UUID        pri_srvc;
+
+    bta_hh_le_co_reset_rpt_cache(p_cb->addr, p_cb->app_id);
+
+    p_cb->disc_active |= (BTA_HH_LE_DISC_HIDS|BTA_HH_LE_DISC_DIS);
+
+    /* read DIS info */
+    if (!DIS_ReadDISInfo(p_cb->addr, bta_hh_le_dis_cback, DIS_ATTR_PNP_ID_BIT))
+    {
+        APPL_TRACE_ERROR("read DIS failed");
+        p_cb->disc_active &= ~BTA_HH_LE_DISC_DIS;
+    }
+
+    /* in parallel */
+    /* start primary service discovery for HID service */
+    pri_srvc.len        = LEN_UUID_16;
+    pri_srvc.uu.uuid16  = UUID_SERVCLASS_LE_HID;
+    BTA_GATTC_ServiceSearchRequest(p_cb->conn_id, &pri_srvc);
+    return;
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_le_encrypt_cback
+**
+** Description      link encryption complete callback for bond verification.
+**
+** Returns          None
+**
+*******************************************************************************/
+void bta_hh_le_encrypt_cback(BD_ADDR bd_addr, tBTA_GATT_TRANSPORT transport,
+                                    void *p_ref_data, tBTM_STATUS result)
+{
+    UINT8   idx = bta_hh_find_cb(bd_addr);
+    tBTA_HH_DEV_CB *p_dev_cb;
+    UNUSED(p_ref_data);
+    UNUSED (transport);
+
+    if (idx != BTA_HH_IDX_INVALID)
+        p_dev_cb = &bta_hh_cb.kdev[idx];
+    else
+    {
+        APPL_TRACE_ERROR("unexpected encryption callback, ignore");
+        return;
+    }
+    p_dev_cb->status = (result == BTM_SUCCESS) ? BTA_HH_OK : BTA_HH_ERR_SEC;
+    p_dev_cb->reason = result;
+
+    bta_hh_sm_execute(p_dev_cb, BTA_HH_ENC_CMPL_EVT, NULL);
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_security_cmpl
+**
+** Description      Security check completed, start the service discovery
+**                  if no cache available, otherwise report connection open completed
+**
+** Parameters:
+**
+*******************************************************************************/
+void bta_hh_security_cmpl(tBTA_HH_DEV_CB *p_cb, tBTA_HH_DATA *p_buf)
+{
+    UNUSED(p_buf);
+
+    APPL_TRACE_DEBUG("%s", __func__);
+    if (p_cb->status == BTA_HH_OK)
+    {
+        if (!p_cb->hid_srvc.in_use)
+        {
+            APPL_TRACE_DEBUG("bta_hh_security_cmpl no reports loaded, try to load");
+
+            /* start loading the cache if not in stack */
+            //TODO(jpawlowski): cache storage is broken, fix it
+            // tBTA_HH_RPT_CACHE_ENTRY     *p_rpt_cache;
+            // UINT8                       num_rpt = 0;
+            // if ((p_rpt_cache = bta_hh_le_co_cache_load(p_cb->addr, &num_rpt, p_cb->app_id)) != NULL)
+            // {
+            //     bta_hh_process_cache_rpt(p_cb, p_rpt_cache, num_rpt);
+            // }
+        }
+        /*  discovery has been done for HID service */
+        if (p_cb->app_id != 0 && p_cb->hid_srvc.in_use)
+        {
+            APPL_TRACE_DEBUG("%s: discovery has been done for HID service", __func__);
+            /* configure protocol mode */
+            if (bta_hh_le_set_protocol_mode(p_cb, p_cb->mode) == FALSE)
+            {
+                bta_hh_le_open_cmpl(p_cb);
+            }
+        }
+        /* start primary service discovery for HID service */
+        else
+        {
+            APPL_TRACE_DEBUG("%s: Starting service discovery", __func__);
+#ifdef BLUETOOTH_RTK
+            bta_hh_clear_service_cache(p_cb);
+#endif
+            bta_hh_le_pri_service_discovery(p_cb);
+        }
+    }
+    else
+    {
+        APPL_TRACE_ERROR("%s() - encryption failed; status=0x%04x, reason=0x%04x",
+                __FUNCTION__, p_cb->status, p_cb->reason);
+#ifdef BLUETOOTH_RTK
+        if (!(p_cb->status == BTA_HH_ERR_SEC && p_cb->reason == BTM_ERR_PROCESSING)) {
+            bta_hh_le_api_disc_act(p_cb);
+        }
+        else{
+            bta_hh_le_api_disc_only_act(p_cb);
+        }
+        p_cb->status = BTA_HH_OK;
+        p_cb->reason = BTM_SUCCESS;
+#else
+        if (!(p_cb->status == BTA_HH_ERR_SEC && p_cb->reason == BTM_ERR_PROCESSING))
+            bta_hh_le_api_disc_act(p_cb);
+#endif
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_le_notify_enc_cmpl
+**
+** Description      process GATT encryption complete event
+**
+** Returns
+**
+*******************************************************************************/
+void bta_hh_le_notify_enc_cmpl(tBTA_HH_DEV_CB *p_cb, tBTA_HH_DATA *p_buf)
+{
+    if (p_cb == NULL || p_cb->security_pending == FALSE ||
+        p_buf == NULL || p_buf->le_enc_cmpl.client_if != bta_hh_cb.gatt_if)
+    {
+        return;
+    }
+
+    p_cb->security_pending = FALSE;
+    bta_hh_start_security(p_cb, NULL);
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_clear_service_cache
+**
+** Description      clear the service cache
+**
+** Parameters:
+**
+*******************************************************************************/
+void bta_hh_clear_service_cache(tBTA_HH_DEV_CB *p_cb)
+{
+    tBTA_HH_LE_HID_SRVC     *p_hid_srvc = &p_cb->hid_srvc;
+
+    p_cb->app_id = 0;
+    p_cb->dscp_info.descriptor.dsc_list = NULL;
+
+    osi_free_and_reset((void **)&p_hid_srvc->rpt_map);
+    memset(p_hid_srvc, 0, sizeof(tBTA_HH_LE_HID_SRVC));
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_start_security
+**
+** Description      start the security check of the established connection
+**
+** Parameters:
+**
+*******************************************************************************/
+void bta_hh_start_security(tBTA_HH_DEV_CB *p_cb, tBTA_HH_DATA *p_buf)
+{
+    UINT8           sec_flag=0;
+    tBTM_SEC_DEV_REC  *p_dev_rec;
+    UNUSED(p_buf);
+
+    p_dev_rec = btm_find_dev(p_cb->addr);
+    if (p_dev_rec)
+    {
+        if (p_dev_rec->sec_state == BTM_SEC_STATE_ENCRYPTING ||
+            p_dev_rec->sec_state == BTM_SEC_STATE_AUTHENTICATING)
+        {
+            /* if security collision happened, wait for encryption done */
+            p_cb->security_pending = TRUE;
+            return;
+        }
+    }
+
+    /* verify bond */
+    BTM_GetSecurityFlagsByTransport(p_cb->addr, &sec_flag, BT_TRANSPORT_LE);
+
+    /* if link has been encrypted */
+    if (sec_flag & BTM_SEC_FLAG_ENCRYPTED)
+    {
+        bta_hh_sm_execute(p_cb, BTA_HH_ENC_CMPL_EVT, NULL);
+    }
+    /* if bonded and link not encrypted */
+    else if (sec_flag & BTM_SEC_FLAG_LKEY_KNOWN)
+    {
+        sec_flag = BTM_BLE_SEC_ENCRYPT;
+        p_cb->status = BTA_HH_ERR_AUTH_FAILED;
+        BTM_SetEncryption(p_cb->addr, BTA_TRANSPORT_LE, bta_hh_le_encrypt_cback, NULL, sec_flag);
+    }
+    /* unbonded device, report security error here */
+    else if (p_cb->sec_mask != BTA_SEC_NONE)
+    {
+        sec_flag = BTM_BLE_SEC_ENCRYPT_NO_MITM;
+        p_cb->status = BTA_HH_ERR_AUTH_FAILED;
+        bta_hh_clear_service_cache(p_cb);
+        BTM_SetEncryption(p_cb->addr, BTA_TRANSPORT_LE, bta_hh_le_encrypt_cback, NULL, sec_flag);
+    }
+    /* otherwise let it go through */
+    else
+    {
+        bta_hh_sm_execute(p_cb, BTA_HH_ENC_CMPL_EVT, NULL);
+    }
+
+
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_gatt_open
+**
+** Description      process GATT open event.
+**
+** Parameters:
+**
+*******************************************************************************/
+void bta_hh_gatt_open(tBTA_HH_DEV_CB *p_cb, tBTA_HH_DATA *p_buf)
+{
+    tBTA_GATTC_OPEN *p_data = &p_buf->le_open;
+    UINT8           *p2;
+    tHID_STATUS     status = BTA_HH_ERR;
+
+    /* if received invalid callback data , ignore it */
+    if (p_cb == NULL || p_data == NULL)
+        return;
+
+    p2 = p_data->remote_bda;
+
+    APPL_TRACE_DEBUG("bta_hh_gatt_open BTA_GATTC_OPEN_EVT bda= [%08x%04x] status =%d",
+                      ((p2[0])<<24)+((p2[1])<<16)+((p2[2])<<8)+(p2[3]),
+                      ((p2[4])<<8)+ p2[5],p_data->status);
+
+    if (p_data->status == BTA_GATT_OK)
+    {
+        p_cb->is_le_device  = TRUE;
+        p_cb->in_use    = TRUE;
+        p_cb->conn_id   = p_data->conn_id;
+        p_cb->hid_handle = BTA_HH_GET_LE_DEV_HDL(p_cb->index);
+
+        bta_hh_cb.le_cb_index[BTA_HH_GET_LE_CB_IDX(p_cb->hid_handle)] = p_cb->index;
+
+        gatt_op_queue_clean(p_cb->conn_id);
+
+#if BTA_HH_DEBUG == TRUE
+        APPL_TRACE_DEBUG("hid_handle = %2x conn_id = %04x cb_index = %d", p_cb->hid_handle, p_cb->conn_id, p_cb->index);
+#endif
+
+        bta_hh_sm_execute(p_cb, BTA_HH_START_ENC_EVT, NULL);
+
+    }
+    else /* open failure */
+    {
+        bta_hh_sm_execute(p_cb, BTA_HH_SDP_CMPL_EVT, (tBTA_HH_DATA *)&status);
+    }
+
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_le_close
+**
+** Description      This function process the GATT close event and post it as a
+**                  BTA HH internal event
+**
+** Parameters:
+**
+*******************************************************************************/
+void bta_hh_le_close(tBTA_GATTC_CLOSE * p_data)
+{
+    tBTA_HH_DEV_CB *p_dev_cb = bta_hh_le_find_dev_cb_by_bda(p_data->remote_bda);
+    UINT16  sm_event = BTA_HH_GATT_CLOSE_EVT;
+
+    if (p_dev_cb != NULL) {
+        tBTA_HH_LE_CLOSE *p_buf =
+            (tBTA_HH_LE_CLOSE *)osi_malloc(sizeof(tBTA_HH_LE_CLOSE));
+        p_buf->hdr.event = sm_event;
+        p_buf->hdr.layer_specific = (UINT16)p_dev_cb->hid_handle;
+        p_buf->conn_id = p_data->conn_id;
+        p_buf->reason = p_data->reason;
+
+        p_dev_cb->conn_id = BTA_GATT_INVALID_CONN_ID;
+        p_dev_cb->security_pending = FALSE;
+        bta_sys_sendmsg(p_buf);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_le_gatt_disc_cmpl
+**
+** Description      Check to see if the remote device is a LE only device
+**
+** Parameters:
+**
+*******************************************************************************/
+void bta_hh_le_gatt_disc_cmpl(tBTA_HH_DEV_CB *p_cb, tBTA_HH_STATUS status)
+{
+    APPL_TRACE_DEBUG("bta_hh_le_gatt_disc_cmpl ");
+
+    /* if open sucessful or protocol mode not desired, keep the connection open but inform app */
+    if (status == BTA_HH_OK || status == BTA_HH_ERR_PROTO)
+    {
+        /* assign a special APP ID temp, since device type unknown */
+        p_cb->app_id = BTA_HH_APP_ID_LE;
+
+        /* set report notification configuration */
+        p_cb->clt_cfg_idx = 0;
+        bta_hh_le_write_rpt_clt_cfg(p_cb, p_cb->hid_srvc.srvc_inst_id);
+    }
+    else /* error, close the GATT connection */
+    {
+        /* close GATT connection if it's on */
+        bta_hh_le_api_disc_act(p_cb);
+    }
+}
+
+void process_included(tBTA_HH_DEV_CB *p_dev_cb, tBTA_GATTC_SERVICE *service) {
+    if (!service->included_svc || list_is_empty(service->included_svc)) {
+        APPL_TRACE_ERROR("%s: Remote device does not have battery level", __func__);
+        return;
+    }
+
+    for (list_node_t *isn = list_begin(service->included_svc);
+         isn != list_end(service->included_svc); isn = list_next(isn)) {
+        tBTA_GATTC_INCLUDED_SVC *p_isvc = list_node(isn);
+        tBTA_GATTC_SERVICE *incl_svc = p_isvc->included_service;
+        if (incl_svc->uuid.uu.uuid16 == UUID_SERVCLASS_BATTERY &&
+            incl_svc->uuid.len == LEN_UUID_16) {
+
+            /* read include service UUID */
+            p_dev_cb->hid_srvc.incl_srvc_inst = incl_svc->handle;
+
+            for (list_node_t *cn = list_begin(incl_svc->characteristics);
+                 cn != list_end(incl_svc->characteristics); cn = list_next(cn)) {
+                tBTA_GATTC_CHARACTERISTIC *p_char = list_node(cn);
+                if (p_char->uuid.uu.uuid16 == GATT_UUID_BATTERY_LEVEL &&
+                    p_char->uuid.len == LEN_UUID_16) {
+
+                    if (bta_hh_le_find_alloc_report_entry(p_dev_cb,
+                                                          incl_svc->s_handle,
+                                                          GATT_UUID_BATTERY_LEVEL,
+                                                          p_char->handle) == NULL)
+                        APPL_TRACE_ERROR("Add battery report entry failed !!!");
+
+                    gatt_queue_read_op(GATT_READ_CHAR, p_dev_cb->conn_id, p_char->handle);
+                    return;
+                }
+            }
+        }
+    }
+
+    APPL_TRACE_ERROR("%s: Remote device does not have battery level", __func__);
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_le_search_hid_chars
+**
+** Description      This function discover all characteristics a service and
+**                  all descriptors available.
+**
+** Parameters:
+**
+*******************************************************************************/
+static void bta_hh_le_search_hid_chars(tBTA_HH_DEV_CB *p_dev_cb, tBTA_GATTC_SERVICE *service)
+{
+    tBTA_HH_LE_RPT *p_rpt;
+
+    for (list_node_t *cn = list_begin(service->characteristics);
+         cn != list_end(service->characteristics); cn = list_next(cn)) {
+        tBTA_GATTC_CHARACTERISTIC *p_char = list_node(cn);
+
+        if(p_char->uuid.len != LEN_UUID_16)
+            continue;
+
+        LOG_DEBUG(LOG_TAG, "%s: %s 0x%04d", __func__, bta_hh_uuid_to_str(p_char->uuid.uu.uuid16),
+                  p_char->uuid.uu.uuid16);
+
+        switch (p_char->uuid.uu.uuid16)
+        {
+        case GATT_UUID_HID_CONTROL_POINT:
+            p_dev_cb->hid_srvc.control_point_handle = p_char->handle;
+            break;
+        case GATT_UUID_HID_INFORMATION:
+        case GATT_UUID_HID_REPORT_MAP:
+            /* read the char value */
+            gatt_queue_read_op(GATT_READ_CHAR, p_dev_cb->conn_id, p_char->handle);
+
+            bta_hh_le_read_char_dscrpt(p_dev_cb, p_char->handle,
+                                   GATT_UUID_EXT_RPT_REF_DESCR);
+            break;
+
+        case GATT_UUID_HID_REPORT:
+            p_rpt = bta_hh_le_find_alloc_report_entry(p_dev_cb,
+                                              p_dev_cb->hid_srvc.srvc_inst_id,
+                                              GATT_UUID_HID_REPORT,
+                                              p_char->handle);
+            if (p_rpt == NULL) {
+                APPL_TRACE_ERROR("%s: Add report entry failed !!!", __func__);
+                break;
+            }
+
+            if (p_rpt->rpt_type != BTA_HH_RPTT_INPUT)
+                break;
+
+            bta_hh_le_read_char_dscrpt(p_dev_cb, p_char->handle, GATT_UUID_RPT_REF_DESCR);
+            break;
+
+        /* found boot mode report types */
+        case GATT_UUID_HID_BT_KB_OUTPUT:
+        case GATT_UUID_HID_BT_MOUSE_INPUT:
+        case GATT_UUID_HID_BT_KB_INPUT:
+            if (bta_hh_le_find_alloc_report_entry(p_dev_cb,
+                                      service->handle,
+                                      p_char->uuid.uu.uuid16,
+                                      p_char->handle) == NULL)
+                APPL_TRACE_ERROR("%s: Add report entry failed !!!", __func__);
+
+            break;
+
+        default:
+            APPL_TRACE_DEBUG("%s: not processing %s 0x%04d", __func__,
+                             bta_hh_uuid_to_str(p_char->uuid.uu.uuid16),
+                             p_char->uuid.uu.uuid16);
+        }
+    }
+
+    /* Make sure PROTO_MODE is processed as last */
+    for (list_node_t *cn = list_begin(service->characteristics);
+         cn != list_end(service->characteristics); cn = list_next(cn)) {
+        tBTA_GATTC_CHARACTERISTIC *p_char = list_node(cn);
+
+        if(p_char->uuid.len != LEN_UUID_16 &&
+           p_char->uuid.uu.uuid16 == GATT_UUID_HID_PROTO_MODE) {
+            p_dev_cb->hid_srvc.proto_mode_handle = p_char->handle;
+            bta_hh_le_set_protocol_mode(p_dev_cb, p_dev_cb->mode);
+            break;
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_le_srvc_search_cmpl
+**
+** Description      This function process the GATT service search complete.
+**
+** Parameters:
+**
+*******************************************************************************/
+void bta_hh_le_srvc_search_cmpl(tBTA_GATTC_SEARCH_CMPL *p_data)
+{
+    tBTA_HH_DEV_CB *p_dev_cb = bta_hh_le_find_dev_cb_by_conn_id(p_data->conn_id);
+
+    /* service search exception or no HID service is supported on remote */
+    if (p_dev_cb == NULL)
+        return;
+
+    if(p_data->status != BTA_GATT_OK)
+    {
+        p_dev_cb->status = BTA_HH_ERR_SDP;
+        /* close the connection and report service discovery complete with error */
+        bta_hh_le_api_disc_act(p_dev_cb);
+        return;
+    }
+
+    const list_t *services = BTA_GATTC_GetServices(p_data->conn_id);
+
+    bool have_hid = false;
+    for (list_node_t *sn = list_begin(services);
+         sn != list_end(services); sn = list_next(sn)) {
+        tBTA_GATTC_SERVICE *service = list_node(sn);
+
+        if (service->uuid.uu.uuid16 == UUID_SERVCLASS_LE_HID &&
+            service->is_primary && !have_hid) {
+            have_hid = true;
+
+            /* found HID primamry service */
+            p_dev_cb->hid_srvc.in_use = TRUE;
+            p_dev_cb->hid_srvc.srvc_inst_id = service->handle;
+            p_dev_cb->hid_srvc.proto_mode_handle = 0;
+            p_dev_cb->hid_srvc.control_point_handle = 0;
+
+            process_included(p_dev_cb, service);
+            bta_hh_le_search_hid_chars(p_dev_cb, service);
+
+            APPL_TRACE_DEBUG("%s: have HID service inst_id= %d", __func__, p_dev_cb->hid_srvc.srvc_inst_id);
+        } else if (service->uuid.uu.uuid16 == UUID_SERVCLASS_SCAN_PARAM) {
+            p_dev_cb->scan_refresh_char_handle = 0;
+
+            for (list_node_t *cn = list_begin(service->characteristics);
+                 cn != list_end(service->characteristics); cn = list_next(cn)) {
+                tBTA_GATTC_CHARACTERISTIC *p_char = list_node(cn);
+                if (p_char->uuid.len == LEN_UUID_16 &&
+                    p_char->uuid.uu.uuid16 == GATT_UUID_SCAN_REFRESH) {
+
+                    p_dev_cb->scan_refresh_char_handle = p_char->handle;
+
+                    if (p_char->properties & BTA_GATT_CHAR_PROP_BIT_NOTIFY)
+                        p_dev_cb->scps_notify |= BTA_HH_LE_SCPS_NOTIFY_SPT;
+                    else
+                        p_dev_cb->scps_notify = BTA_HH_LE_SCPS_NOTIFY_NONE;
+
+                    break;
+                }
+            }
+        } else if (service->uuid.uu.uuid16 == UUID_SERVCLASS_GAP_SERVER) {
+            //TODO(jpawlowski): this should be done by GAP profile, remove when GAP is fixed.
+            for (list_node_t *cn = list_begin(service->characteristics);
+                 cn != list_end(service->characteristics); cn = list_next(cn)) {
+                tBTA_GATTC_CHARACTERISTIC *p_char = list_node(cn);
+                if (p_char->uuid.len == LEN_UUID_16 &&
+                    p_char->uuid.uu.uuid16 == GATT_UUID_GAP_PREF_CONN_PARAM) {
+
+                    /* read the char value */
+                    gatt_queue_read_op(GATT_READ_CHAR, p_dev_cb->conn_id, p_char->handle);
+
+                    break;
+                }
+            }
+        }
+    }
+
+    bta_hh_le_gatt_disc_cmpl(p_dev_cb, p_dev_cb->status);
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_read_battery_level_cmpl
+**
+** Description      This function process the battery level read
+**
+** Parameters:
+**
+*******************************************************************************/
+void bta_hh_read_battery_level_cmpl(UINT8 status, tBTA_HH_DEV_CB *p_dev_cb, tBTA_GATTC_READ *p_data)
+{
+    UNUSED(status);
+    UNUSED(p_data);
+    p_dev_cb->hid_srvc.expl_incl_srvc = TRUE;
+}
+
+
+/*******************************************************************************
+**
+** Function         bta_hh_le_save_rpt_map
+**
+** Description      save the report map into the control block.
+**
+** Parameters:
+**
+*******************************************************************************/
+void bta_hh_le_save_rpt_map(tBTA_HH_DEV_CB *p_dev_cb, tBTA_GATTC_READ *p_data)
+{
+    tBTA_HH_LE_HID_SRVC *p_srvc = &p_dev_cb->hid_srvc;
+
+    osi_free_and_reset((void **)&p_srvc->rpt_map);
+
+    if (p_data->p_value->len > 0)
+        p_srvc->rpt_map = (UINT8 *)osi_malloc(p_data->p_value->len);
+
+    if (p_srvc->rpt_map != NULL)
+    {
+        UINT8 *pp = p_data->p_value->p_value;
+        STREAM_TO_ARRAY(p_srvc->rpt_map, pp, p_data->p_value->len);
+        p_srvc->descriptor.dl_len = p_data->p_value->len;
+        p_srvc->descriptor.dsc_list = p_dev_cb->hid_srvc.rpt_map;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_le_proc_get_rpt_cmpl
+**
+** Description      Process the Read report complete, send GET_REPORT_EVT to application
+**                  with the report data.
+**
+** Parameters:
+**
+*******************************************************************************/
+void bta_hh_le_proc_get_rpt_cmpl(tBTA_HH_DEV_CB *p_dev_cb, tBTA_GATTC_READ *p_data)
+{
+    BT_HDR              *p_buf = NULL;
+    tBTA_HH_LE_RPT      *p_rpt;
+    tBTA_HH_HSDATA      hs_data;
+    UINT8               *pp ;
+
+    if (p_dev_cb->w4_evt != BTA_HH_GET_RPT_EVT)
+    {
+        APPL_TRACE_ERROR("Unexpected READ cmpl, w4_evt = %d", p_dev_cb->w4_evt);
+        return;
+    }
+
+    const tBTA_GATTC_CHARACTERISTIC *p_char = BTA_GATTC_GetCharacteristic(p_dev_cb->conn_id,
+                                                                          p_data->handle);
+
+    memset(&hs_data, 0, sizeof(hs_data));
+    hs_data.status  = BTA_HH_ERR;
+    hs_data.handle  = p_dev_cb->hid_handle;
+
+    if (p_data->status == BTA_GATT_OK)
+    {
+        p_rpt = bta_hh_le_find_report_entry(p_dev_cb,
+                                            p_char->service->handle,
+                                            p_char->uuid.uu.uuid16,
+                                            p_char->handle);
+
+        if (p_rpt != NULL && p_data->p_value != NULL) {
+            p_buf = (BT_HDR *)osi_malloc(sizeof(BT_HDR) + p_data->p_value->len + 1);
+            /* pack data send to app */
+            hs_data.status  = BTA_HH_OK;
+            p_buf->len = p_data->p_value->len + 1;
+            p_buf->layer_specific = 0;
+            p_buf->offset = 0;
+
+            /* attach report ID as the first byte of the report before sending it to USB HID driver */
+            pp = (UINT8*)(p_buf + 1);
+            UINT8_TO_STREAM(pp, p_rpt->rpt_id);
+            memcpy(pp, p_data->p_value->p_value, p_data->p_value->len);
+
+            hs_data.rsp_data.p_rpt_data =p_buf;
+        }
+    }
+
+    p_dev_cb->w4_evt = 0;
+    (* bta_hh_cb.p_cback)(BTA_HH_GET_RPT_EVT, (tBTA_HH *)&hs_data);
+
+    osi_free_and_reset((void **)&p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_le_proc_read_proto_mode
+**
+** Description      Process the Read protocol mode, send GET_PROTO_EVT to application
+**                  with the protocol mode.
+**
+*******************************************************************************/
+void bta_hh_le_proc_read_proto_mode(tBTA_HH_DEV_CB *p_dev_cb, tBTA_GATTC_READ *p_data)
+{
+    tBTA_HH_HSDATA      hs_data;
+
+    hs_data.status  = BTA_HH_ERR;
+    hs_data.handle  = p_dev_cb->hid_handle;
+    hs_data.rsp_data.proto_mode = p_dev_cb->mode;
+
+    if (p_data->status == BTA_GATT_OK && p_data->p_value)
+    {
+        hs_data.status  = BTA_HH_OK;
+        /* match up BTE/BTA report/boot mode def*/
+        hs_data.rsp_data.proto_mode = *(p_data->p_value->p_value);
+        /* LE repot mode is the opposite value of BR/EDR report mode, flip it here */
+        if (hs_data.rsp_data.proto_mode == 0)
+            hs_data.rsp_data.proto_mode = BTA_HH_PROTO_BOOT_MODE;
+        else
+            hs_data.rsp_data.proto_mode = BTA_HH_PROTO_RPT_MODE;
+
+        p_dev_cb->mode = hs_data.rsp_data.proto_mode;
+    }
+#if BTA_HH_DEBUG
+    APPL_TRACE_DEBUG("LE GET_PROTOCOL Mode = [%s]",
+                        (hs_data.rsp_data.proto_mode == BTA_HH_PROTO_RPT_MODE)? "Report" : "Boot");
+#endif
+
+    p_dev_cb->w4_evt = 0;
+    (* bta_hh_cb.p_cback)(BTA_HH_GET_PROTO_EVT, (tBTA_HH *)&hs_data);
+
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_w4_le_read_char_cmpl
+**
+** Description      process the GATT read complete in W4_CONN state.
+**
+** Parameters:
+**
+*******************************************************************************/
+void bta_hh_w4_le_read_char_cmpl(tBTA_HH_DEV_CB *p_dev_cb, tBTA_HH_DATA *p_buf)
+{
+    tBTA_GATTC_READ     * p_data = (tBTA_GATTC_READ *)p_buf;
+    UINT8               *pp ;
+
+    const tBTA_GATTC_CHARACTERISTIC *p_char = BTA_GATTC_GetCharacteristic(p_dev_cb->conn_id,
+                                                                          p_data->handle);
+    UINT16 char_uuid = p_char->uuid.uu.uuid16;
+
+    if (char_uuid == GATT_UUID_BATTERY_LEVEL)
+    {
+        bta_hh_read_battery_level_cmpl(p_data->status, p_dev_cb, p_data);
+    }
+    else if (char_uuid == GATT_UUID_GAP_PREF_CONN_PARAM)
+    {
+        //TODO(jpawlowski): this should be done by GAP profile, remove when GAP is fixed.
+        UINT8 *pp = p_data->p_value->p_value;
+        UINT16 min, max, latency, tout;
+        STREAM_TO_UINT16 (min, pp);
+        STREAM_TO_UINT16 (max, pp);
+        STREAM_TO_UINT16 (latency, pp);
+        STREAM_TO_UINT16 (tout, pp);
+
+        // Make sure both min, and max are bigger than 11.25ms, lower values can introduce
+        // audio issues if A2DP is also active.
+        if (min < BTM_BLE_CONN_INT_MIN_LIMIT)
+            min = BTM_BLE_CONN_INT_MIN_LIMIT;
+        if (max < BTM_BLE_CONN_INT_MIN_LIMIT)
+            max = BTM_BLE_CONN_INT_MIN_LIMIT;
+
+        if (tout < BTM_BLE_CONN_TIMEOUT_MIN_DEF)
+            tout = BTM_BLE_CONN_TIMEOUT_MIN_DEF;
+
+        BTM_BleSetPrefConnParams (p_dev_cb->addr, min, max, latency, tout);
+        L2CA_UpdateBleConnParams(p_dev_cb->addr, min, max, latency, tout);
+    }
+    else
+    {
+        if (p_data->status == BTA_GATT_OK && p_data->p_value)
+        {
+            pp = p_data->p_value->p_value;
+
+            switch (char_uuid)
+            {
+           /* save device information */
+            case GATT_UUID_HID_INFORMATION:
+                STREAM_TO_UINT16(p_dev_cb->dscp_info.version, pp);
+                STREAM_TO_UINT8(p_dev_cb->dscp_info.ctry_code, pp);
+                STREAM_TO_UINT8(p_dev_cb->dscp_info.flag, pp);
+                break;
+
+            case GATT_UUID_HID_REPORT_MAP:
+                bta_hh_le_save_rpt_map(p_dev_cb, p_data);
+                return;
+
+            default:
+#if BTA_HH_DEBUG == TRUE
+                APPL_TRACE_ERROR("Unexpected read %s(0x%04x)",
+                                bta_hh_uuid_to_str(char_uuid), char_uuid);
+#endif
+                break;
+            }
+        }
+        else
+        {
+#if BTA_HH_DEBUG == TRUE
+            APPL_TRACE_ERROR("read uuid %s[0x%04x] error: %d", bta_hh_uuid_to_str(char_uuid),
+                             char_uuid, p_data->status);
+#else
+            APPL_TRACE_ERROR("read uuid [0x%04x] error: %d", char_uuid, p_data->status);
+#endif
+        }
+    }
+
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_le_read_char_cmpl
+**
+** Description      a characteristic value is received.
+**
+** Parameters:
+**
+*******************************************************************************/
+void bta_hh_le_read_char_cmpl (tBTA_HH_DEV_CB *p_dev_cb, tBTA_HH_DATA *p_buf)
+{
+    tBTA_GATTC_READ * p_data = (tBTA_GATTC_READ *)p_buf;
+
+    const tBTA_GATTC_CHARACTERISTIC *p_char = BTA_GATTC_GetCharacteristic(p_dev_cb->conn_id,
+                                                                          p_data->handle);
+    UINT16 char_uuid = p_char->uuid.uu.uuid16;
+
+    switch (char_uuid)
+    {
+    /* GET_REPORT */
+    case GATT_UUID_HID_REPORT:
+    case GATT_UUID_HID_BT_KB_INPUT:
+    case GATT_UUID_HID_BT_KB_OUTPUT:
+    case GATT_UUID_HID_BT_MOUSE_INPUT:
+    case GATT_UUID_BATTERY_LEVEL: /* read battery level */
+        bta_hh_le_proc_get_rpt_cmpl(p_dev_cb, p_data);
+        break;
+
+    case GATT_UUID_HID_PROTO_MODE:
+        bta_hh_le_proc_read_proto_mode(p_dev_cb, p_data);
+        break;
+
+    default:
+        APPL_TRACE_ERROR("Unexpected Read UUID: 0x%04x", char_uuid);
+        break;
+    }
+
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_le_read_descr_cmpl
+**
+** Description      read characteristic descriptor is completed in CONN st.
+**
+** Parameters:
+**
+*******************************************************************************/
+void bta_hh_le_read_descr_cmpl(tBTA_HH_DEV_CB *p_dev_cb, tBTA_HH_DATA *p_buf)
+{
+    tBTA_HH_LE_RPT  *p_rpt;
+    tBTA_GATTC_READ * p_data = (tBTA_GATTC_READ *)p_buf;
+    UINT8   *pp;
+
+    const tBTA_GATTC_DESCRIPTOR *p_desc = BTA_GATTC_GetDescriptor(p_data->conn_id, p_data->handle);
+
+    /* if a report client configuration */
+    if (p_desc->uuid.uu.uuid16 == GATT_UUID_CHAR_CLIENT_CONFIG)
+    {
+        if ((p_rpt = bta_hh_le_find_report_entry(p_dev_cb,
+                                                 p_desc->characteristic->service->handle,
+                                                 p_desc->characteristic->uuid.uu.uuid16,
+                                                 p_desc->characteristic->handle)) != NULL)
+        {
+            pp = p_data->p_value->p_value;
+            STREAM_TO_UINT16(p_rpt->client_cfg_value, pp);
+
+            APPL_TRACE_DEBUG("Read Client Configuration: 0x%04x", p_rpt->client_cfg_value);
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_w4_le_read_descr_cmpl
+**
+** Description      read characteristic descriptor is completed in W4_CONN st.
+**
+** Parameters:
+**
+*******************************************************************************/
+void bta_hh_w4_le_read_descr_cmpl(tBTA_HH_DEV_CB *p_dev_cb, tBTA_HH_DATA *p_buf)
+{
+    tBTA_HH_LE_RPT  *p_rpt;
+    tBTA_GATTC_READ * p_data = (tBTA_GATTC_READ *)p_buf;
+    UINT16 char_uuid16;
+
+    if (p_data == NULL)
+        return;
+
+    const tBTA_GATTC_DESCRIPTOR *p_desc = BTA_GATTC_GetDescriptor(p_data->conn_id, p_data->handle);
+
+    if (p_desc == NULL) {
+        APPL_TRACE_ERROR("%s: p_descr is NULL %d", __func__, p_data->handle);
+        return;
+    }
+
+    char_uuid16 = p_desc->characteristic->uuid.uu.uuid16;
+
+#if BTA_HH_DEBUG == TRUE
+    APPL_TRACE_DEBUG("bta_hh_w4_le_read_descr_cmpl uuid: %s(0x%04x)",
+                        bta_hh_uuid_to_str(p_desc->uuid.uu.uuid16),
+                        p_desc->uuid.uu.uuid16);
+#endif
+    switch (char_uuid16)
+    {
+    case GATT_UUID_HID_REPORT:
+        if ((p_rpt = bta_hh_le_find_report_entry(p_dev_cb,
+                                            p_desc->characteristic->service->handle,
+                                            GATT_UUID_HID_REPORT,
+                                            p_desc->characteristic->handle)))
+            bta_hh_le_save_rpt_ref(p_dev_cb, p_rpt, p_data);
+        break;
+
+    case GATT_UUID_HID_REPORT_MAP:
+        bta_hh_le_save_ext_rpt_ref(p_dev_cb, p_data);
+        break;
+
+    case GATT_UUID_BATTERY_LEVEL:
+        if ((p_rpt = bta_hh_le_find_report_entry(p_dev_cb,
+                                            p_desc->characteristic->service->handle,
+                                            GATT_UUID_BATTERY_LEVEL,
+                                            p_desc->characteristic->handle)))
+            bta_hh_le_save_rpt_ref(p_dev_cb, p_rpt, p_data);
+
+        break;
+
+    default:
+        APPL_TRACE_ERROR("unknown descriptor read complete for uuid: 0x%04x", char_uuid16);
+        break;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_w4_le_write_cmpl
+**
+** Description      Write charactersitic complete event at W4_CONN st.
+**
+** Parameters:
+**
+*******************************************************************************/
+void bta_hh_w4_le_write_cmpl(tBTA_HH_DEV_CB *p_dev_cb, tBTA_HH_DATA *p_buf)
+{
+    tBTA_GATTC_WRITE    *p_data = (tBTA_GATTC_WRITE *)p_buf;
+
+    if (p_data == NULL)
+        return;
+
+    const tBTA_GATTC_CHARACTERISTIC *p_char = BTA_GATTC_GetCharacteristic(p_dev_cb->conn_id,
+                                                                          p_data->handle);
+
+    if (p_char->uuid.uu.uuid16 == GATT_UUID_HID_PROTO_MODE)
+    {
+        p_dev_cb->status = (p_data->status == BTA_GATT_OK) ? BTA_HH_OK : BTA_HH_ERR_PROTO;
+
+        if ((p_dev_cb->disc_active & BTA_HH_LE_DISC_HIDS) == 0)
+            bta_hh_le_open_cmpl(p_dev_cb);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_le_write_cmpl
+**
+** Description      Write charactersitic complete event at CONN st.
+**
+** Parameters:
+**
+*******************************************************************************/
+void bta_hh_le_write_cmpl(tBTA_HH_DEV_CB *p_dev_cb, tBTA_HH_DATA *p_buf)
+{
+    tBTA_GATTC_WRITE    *p_data = (tBTA_GATTC_WRITE *)p_buf;
+    tBTA_HH_CBDATA      cback_data ;
+    UINT16              cb_evt = p_dev_cb->w4_evt;
+
+    if (p_data == NULL  || cb_evt == 0)
+        return;
+
+    const tBTA_GATTC_CHARACTERISTIC *p_char = BTA_GATTC_GetCharacteristic(p_dev_cb->conn_id,
+                                                                          p_data->handle);
+
+#if BTA_HH_DEBUG
+    APPL_TRACE_DEBUG("bta_hh_le_write_cmpl w4_evt: %d", p_dev_cb->w4_evt);
+#endif
+    switch (p_char->uuid.uu.uuid16)
+    {
+    /* Set protocol finished */
+    case GATT_UUID_HID_PROTO_MODE:
+        cback_data.handle  = p_dev_cb->hid_handle;
+        if (p_data->status == BTA_GATT_OK)
+        {
+            bta_hh_le_register_input_notif(p_dev_cb, p_dev_cb->mode, FALSE);
+            cback_data.status = BTA_HH_OK;
+        }
+        else
+            cback_data.status =  BTA_HH_ERR;
+        p_dev_cb->w4_evt = 0;
+        (* bta_hh_cb.p_cback)(cb_evt, (tBTA_HH *)&cback_data);
+        break;
+
+    /* Set Report finished */
+    case GATT_UUID_HID_REPORT:
+    case GATT_UUID_HID_BT_KB_INPUT:
+    case GATT_UUID_HID_BT_MOUSE_INPUT:
+    case GATT_UUID_HID_BT_KB_OUTPUT:
+        cback_data.handle  = p_dev_cb->hid_handle;
+        cback_data.status = (p_data->status == BTA_GATT_OK)? BTA_HH_OK : BTA_HH_ERR;
+        p_dev_cb->w4_evt = 0;
+        (* bta_hh_cb.p_cback)(cb_evt, (tBTA_HH *)&cback_data);
+        break;
+
+    case GATT_UUID_SCAN_INT_WINDOW:
+        bta_hh_le_register_scpp_notif(p_dev_cb, p_data->status);
+        break;
+
+    default:
+        break;
+    }
+
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_le_write_char_descr_cmpl
+**
+** Description      Write charactersitic descriptor complete event
+**
+** Parameters:
+**
+*******************************************************************************/
+void bta_hh_le_write_char_descr_cmpl(tBTA_HH_DEV_CB *p_dev_cb, tBTA_HH_DATA *p_buf)
+{
+    tBTA_GATTC_WRITE    *p_data = (tBTA_GATTC_WRITE *)p_buf;
+    UINT8   srvc_inst_id, hid_inst_id;
+
+    const tBTA_GATTC_DESCRIPTOR *p_desc = BTA_GATTC_GetDescriptor(p_dev_cb->conn_id,
+                                                                       p_data->handle);
+
+    UINT16 desc_uuid = p_desc->uuid.uu.uuid16;
+    UINT16 char_uuid = p_desc->characteristic->uuid.uu.uuid16;
+    /* only write client configuration possible */
+    if (desc_uuid == GATT_UUID_CHAR_CLIENT_CONFIG)
+    {
+        srvc_inst_id = p_desc->characteristic->service->handle;
+        hid_inst_id = srvc_inst_id;
+        switch (char_uuid)
+        {
+        case GATT_UUID_BATTERY_LEVEL: /* battery level clt cfg registered */
+            hid_inst_id = bta_hh_le_find_service_inst_by_battery_inst_id(p_dev_cb, srvc_inst_id);
+            /* fall through */
+        case GATT_UUID_HID_BT_KB_INPUT:
+        case GATT_UUID_HID_BT_MOUSE_INPUT:
+        case GATT_UUID_HID_REPORT:
+            if (p_data->status == BTA_GATT_OK)
+                p_dev_cb->hid_srvc.report[p_dev_cb->clt_cfg_idx].client_cfg_value =
+                        BTA_GATT_CLT_CONFIG_NOTIFICATION;
+            p_dev_cb->clt_cfg_idx ++;
+            bta_hh_le_write_rpt_clt_cfg(p_dev_cb, hid_inst_id);
+
+            break;
+
+        case GATT_UUID_SCAN_REFRESH:
+            bta_hh_le_register_scpp_notif_cmpl(p_dev_cb, p_data->status);
+            break;
+
+        default:
+            APPL_TRACE_ERROR("Unknown char ID clt cfg: 0x%04x", char_uuid);
+        }
+    }
+    else
+    {
+#if BTA_HH_DEBUG == TRUE
+        APPL_TRACE_ERROR("Unexpected write to %s(0x%04x)",
+                         bta_hh_uuid_to_str(desc_uuid), desc_uuid);
+#else
+        APPL_TRACE_ERROR("Unexpected write to (0x%04x)", desc_uuid);
+#endif
+    }
+
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_le_input_rpt_notify
+**
+** Description      process the notificaton event, most likely for input report.
+**
+** Parameters:
+**
+*******************************************************************************/
+void bta_hh_le_input_rpt_notify(tBTA_GATTC_NOTIFY *p_data)
+{
+    tBTA_HH_DEV_CB       *p_dev_cb = bta_hh_le_find_dev_cb_by_conn_id(p_data->conn_id);
+    UINT8           app_id;
+    UINT8           *p_buf;
+    tBTA_HH_LE_RPT  *p_rpt;
+#ifdef BLUETOOTH_RTK_COEX
+    UINT8   data_type = 0;
+#endif
+
+    if (p_dev_cb == NULL)
+    {
+        APPL_TRACE_ERROR("notification received from Unknown device");
+        return;
+    }
+
+    const tBTA_GATTC_CHARACTERISTIC *p_char = BTA_GATTC_GetCharacteristic(p_dev_cb->conn_id,
+                                                                          p_data->handle);
+
+    app_id= p_dev_cb->app_id;
+
+    p_rpt = bta_hh_le_find_report_entry(p_dev_cb,
+                                        p_dev_cb->hid_srvc.srvc_inst_id,
+                                        p_char->uuid.uu.uuid16,
+                                        p_char->handle);
+    if (p_rpt == NULL)
+    {
+        APPL_TRACE_ERROR("notification received for Unknown Report");
+        return;
+    }
+
+    if (p_char->uuid.uu.uuid16 == GATT_UUID_HID_BT_MOUSE_INPUT)
+        app_id = BTA_HH_APP_ID_MI;
+    else if (p_char->uuid.uu.uuid16 == GATT_UUID_HID_BT_KB_INPUT)
+        app_id = BTA_HH_APP_ID_KB;
+
+    APPL_TRACE_DEBUG("Notification received on report ID: %d", p_rpt->rpt_id);
+#ifdef BLUETOOTH_RTK_API
+    if(rtkbt_api_BleHHNotify(p_dev_cb, p_rpt, p_data))  // stolen by app
+    {
+         APPL_TRACE_DEBUG("Notification Stolen by RTKBT\n");
+         return;
+    }
+#endif
+
+    /* need to append report ID to the head of data */
+    if (p_rpt->rpt_id != 0)
+    {
+#ifdef BLUETOOTH_RTK_COEX
+        data_type = p_rpt->rpt_id;
+        rtk_parse_manager_get_interface()->rtk_add_le_data_count(data_type);
+#endif
+        p_buf = (UINT8 *)osi_malloc(p_data->len + 1);
+
+        p_buf[0] = p_rpt->rpt_id;
+        memcpy(&p_buf[1], p_data->value, p_data->len);
+        ++p_data->len;
+    } else {
+#ifdef BLUETOOTH_RTK_COEX
+        data_type = 1;
+        rtk_parse_manager_get_interface()->rtk_add_le_data_count(data_type);
+#endif
+        p_buf = p_data->value;
+    }
+
+    bta_hh_co_data((UINT8)p_dev_cb->hid_handle,
+                    p_buf,
+                    p_data->len,
+                    p_dev_cb->mode,
+                    0 , /* no sub class*/
+                    p_dev_cb->dscp_info.ctry_code,
+                    p_dev_cb->addr,
+                    app_id);
+
+    if (p_buf != p_data->value)
+        osi_free(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_gatt_open_fail
+**
+** Description      action function to process the open fail
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hh_le_open_fail(tBTA_HH_DEV_CB *p_cb, tBTA_HH_DATA *p_data)
+{
+    tBTA_HH_CONN            conn_dat ;
+
+    /* open failure in the middle of service discovery, clear all services */
+    if (p_cb->disc_active & BTA_HH_LE_DISC_HIDS)
+    {
+        bta_hh_clear_service_cache(p_cb);
+    }
+
+    p_cb->disc_active = BTA_HH_LE_DISC_NONE;
+    /* Failure in opening connection or GATT discovery failure */
+    conn_dat.handle = p_cb->hid_handle;
+    memcpy(conn_dat.bda, p_cb->addr, BD_ADDR_LEN);
+    conn_dat.le_hid = TRUE;
+    conn_dat.scps_supported = p_cb->scps_supported;
+
+    if (p_cb->status == BTA_HH_OK)
+        conn_dat.status = (p_data->le_close.reason == BTA_GATT_CONN_UNKNOWN) ? p_cb->status : BTA_HH_ERR;
+    else
+        conn_dat.status = p_cb->status;
+
+    /* Report OPEN fail event */
+    (*bta_hh_cb.p_cback)(BTA_HH_OPEN_EVT, (tBTA_HH *)&conn_dat);
+
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_gatt_close
+**
+** Description      action function to process the GATT close int he state machine.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hh_gatt_close(tBTA_HH_DEV_CB *p_cb, tBTA_HH_DATA *p_data)
+{
+    tBTA_HH_CBDATA          disc_dat = {BTA_HH_OK, 0};
+
+    /* finaliza device driver */
+    bta_hh_co_close(p_cb->hid_handle, p_cb->app_id);
+    /* update total conn number */
+    bta_hh_cb.cnt_num --;
+
+    disc_dat.handle = p_cb->hid_handle;
+    disc_dat.status = p_cb->status;
+
+    (*bta_hh_cb.p_cback)(BTA_HH_CLOSE_EVT, (tBTA_HH *)&disc_dat);
+
+    /* if no connection is active and HH disable is signaled, disable service */
+    if (bta_hh_cb.cnt_num == 0 && bta_hh_cb.w4_disable)
+    {
+        bta_hh_disc_cmpl();
+    }
+    else
+    {
+#if (BTA_HH_LE_RECONN == TRUE)
+    if (p_data->le_close.reason == BTA_GATT_CONN_TIMEOUT)
+    {
+        bta_hh_le_add_dev_bg_conn(p_cb, FALSE);
+    }
+#endif
+    }
+
+    return;
+
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_le_api_disc_act
+**
+** Description      initaite a Close API to a remote HID device
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hh_le_api_disc_act(tBTA_HH_DEV_CB *p_cb)
+{
+    if (p_cb->conn_id != BTA_GATT_INVALID_CONN_ID)
+    {
+        gatt_op_queue_clean(p_cb->conn_id);
+        BTA_GATTC_Close(p_cb->conn_id);
+        /* remove device from background connection if intended to disconnect,
+           do not allow reconnection */
+        bta_hh_le_remove_dev_bg_conn(p_cb);
+    }
+}
+
+#ifdef BLUETOOTH_RTK
+/*******************************************************************************
+**
+** Function         bta_hh_le_api_disc_only_act
+**
+** Description      initaite a Close API to a remote HID device,but we don't
+**                  remove device from white list
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hh_le_api_disc_only_act(tBTA_HH_DEV_CB *p_cb)
+{
+    APPL_TRACE_DEBUG("bta_hh_le_api_disc_only_act p_cb->conn_id = %d", p_cb->conn_id);
+    if (p_cb->conn_id != BTA_GATT_INVALID_CONN_ID)
+    {
+        BTA_GATTC_Close(p_cb->conn_id);
+    }
+}
+#endif
+/*******************************************************************************
+**
+** Function         bta_hh_le_get_rpt
+**
+** Description      GET_REPORT on a LE HID Report
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hh_le_get_rpt(tBTA_HH_DEV_CB *p_cb, tBTA_HH_RPT_TYPE r_type, UINT8 rpt_id)
+{
+    tBTA_HH_LE_RPT  *p_rpt = bta_hh_le_find_rpt_by_idtype(p_cb->hid_srvc.report, p_cb->mode, r_type, rpt_id);
+
+    if (p_rpt == NULL) {
+        APPL_TRACE_ERROR("%s: no matching report", __func__);
+        return;
+    }
+
+    p_cb->w4_evt = BTA_HH_GET_RPT_EVT;
+    gatt_queue_read_op(GATT_READ_CHAR, p_cb->conn_id, p_rpt->char_inst_id);
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_le_write_rpt
+**
+** Description      SET_REPORT/or DATA output on a LE HID Report
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hh_le_write_rpt(tBTA_HH_DEV_CB *p_cb,
+                         tBTA_HH_RPT_TYPE r_type,
+                         BT_HDR *p_buf, UINT16 w4_evt )
+{
+    tBTA_HH_LE_RPT  *p_rpt;
+    UINT8   *p_value, rpt_id;
+
+    if (p_buf == NULL || p_buf->len == 0)
+    {
+        APPL_TRACE_ERROR("bta_hh_le_write_rpt: Illegal data");
+        return;
+    }
+
+    /* strip report ID from the data */
+    p_value = (UINT8 *)(p_buf + 1) + p_buf->offset;
+    STREAM_TO_UINT8(rpt_id, p_value);
+    p_buf->len -= 1;
+
+    p_rpt = bta_hh_le_find_rpt_by_idtype(p_cb->hid_srvc.report, p_cb->mode, r_type, rpt_id);
+
+    if (p_rpt == NULL) {
+        APPL_TRACE_ERROR("%s: no matching report", __func__);
+        osi_free(p_buf);
+        return;
+    }
+
+    p_cb->w4_evt = w4_evt;
+
+    const tBTA_GATTC_CHARACTERISTIC *p_char = BTA_GATTC_GetCharacteristic(p_cb->conn_id,
+                                                                          p_rpt->char_inst_id);
+
+    tBTA_GATTC_WRITE_TYPE write_type = BTA_GATTC_TYPE_WRITE;
+    if (p_char && (p_char->properties & BTA_GATT_CHAR_PROP_BIT_WRITE_NR))
+        write_type = BTA_GATTC_TYPE_WRITE_NO_RSP;
+
+    gatt_queue_write_op(GATT_WRITE_CHAR, p_cb->conn_id, p_rpt->char_inst_id,
+                        p_buf->len, p_value, write_type);
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_le_suspend
+**
+** Description      send LE suspend or exit suspend mode to remote device.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hh_le_suspend(tBTA_HH_DEV_CB *p_cb, tBTA_HH_TRANS_CTRL_TYPE ctrl_type)
+{
+    ctrl_type -= BTA_HH_CTRL_SUSPEND;
+
+    gatt_queue_write_op(GATT_WRITE_CHAR, p_cb->conn_id, p_cb->hid_srvc.control_point_handle, 1,
+                        &ctrl_type, BTA_GATTC_TYPE_WRITE_NO_RSP);
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_le_write_dev_act
+**
+** Description      Write LE device action. can be SET/GET/DATA transaction.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hh_le_write_dev_act(tBTA_HH_DEV_CB *p_cb, tBTA_HH_DATA *p_data)
+{
+    switch(p_data->api_sndcmd.t_type)
+    {
+        case HID_TRANS_SET_PROTOCOL:
+            p_cb->w4_evt = BTA_HH_SET_PROTO_EVT;
+            bta_hh_le_set_protocol_mode(p_cb, p_data->api_sndcmd.param);
+            break;
+
+        case HID_TRANS_GET_PROTOCOL:
+            bta_hh_le_get_protocol_mode(p_cb);
+            break;
+
+        case HID_TRANS_GET_REPORT:
+            bta_hh_le_get_rpt(p_cb,
+                              p_data->api_sndcmd.param,
+                              p_data->api_sndcmd.rpt_id);
+            break;
+
+        case HID_TRANS_SET_REPORT:
+            bta_hh_le_write_rpt(p_cb,
+                                p_data->api_sndcmd.param,
+                                p_data->api_sndcmd.p_data,
+                                BTA_HH_SET_RPT_EVT);
+            break;
+
+        case HID_TRANS_DATA:  /* output report */
+
+            bta_hh_le_write_rpt(p_cb,
+                                p_data->api_sndcmd.param,
+                                p_data->api_sndcmd.p_data,
+                                BTA_HH_DATA_EVT);
+            break;
+
+        case HID_TRANS_CONTROL:
+            /* no handshake event will be generated */
+            /* if VC_UNPLUG is issued, set flag */
+            if (p_data->api_sndcmd.param == BTA_HH_CTRL_SUSPEND ||
+                p_data->api_sndcmd.param == BTA_HH_CTRL_EXIT_SUSPEND)
+            {
+                bta_hh_le_suspend(p_cb, p_data->api_sndcmd.param);
+            }
+            break;
+
+        default:
+            APPL_TRACE_ERROR("%s unsupported transaction for BLE HID device: %d",
+                __func__, p_data->api_sndcmd.t_type);
+            break;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_le_get_dscp_act
+**
+** Description      Send ReportDescriptor to application for all HID services.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hh_le_get_dscp_act(tBTA_HH_DEV_CB *p_cb)
+{
+    if (p_cb->hid_srvc.in_use)
+    {
+        p_cb->dscp_info.descriptor.dl_len = p_cb->hid_srvc.descriptor.dl_len;
+        p_cb->dscp_info.descriptor.dsc_list = p_cb->hid_srvc.descriptor.dsc_list;
+
+        (*bta_hh_cb.p_cback)(BTA_HH_GET_DSCP_EVT, (tBTA_HH *)&p_cb->dscp_info);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_le_add_dev_bg_conn
+**
+** Description      Remove a LE HID device from back ground connection procedure.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_hh_le_add_dev_bg_conn(tBTA_HH_DEV_CB *p_cb, BOOLEAN check_bond)
+{
+    UINT8           sec_flag=0;
+    BOOLEAN         to_add = TRUE;
+
+    if (check_bond)
+    {
+        /* start reconnection if remote is a bonded device */
+        /* verify bond */
+        BTM_GetSecurityFlagsByTransport(p_cb->addr, &sec_flag, BT_TRANSPORT_LE);
+
+        if ((sec_flag & BTM_SEC_FLAG_LKEY_KNOWN) == 0)
+            to_add = FALSE;
+    }
+
+    if (/*p_cb->dscp_info.flag & BTA_HH_LE_NORMAL_CONN &&*/
+        !p_cb->in_bg_conn && to_add)
+    {
+        /* add device into BG connection to accept remote initiated connection */
+        BTA_GATTC_Open(bta_hh_cb.gatt_if, p_cb->addr, FALSE, BTA_GATT_TRANSPORT_LE);
+        p_cb->in_bg_conn = TRUE;
+
+        BTA_DmBleSetBgConnType(BTA_DM_BLE_CONN_AUTO, NULL);
+    }
+    return;
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_le_add_device
+**
+** Description      Add a LE HID device as a known device, and also add the address
+**                  into back ground connection WL for incoming connection.
+**
+** Returns          void
+**
+*******************************************************************************/
+UINT8 bta_hh_le_add_device(tBTA_HH_DEV_CB *p_cb, tBTA_HH_MAINT_DEV *p_dev_info)
+{
+    p_cb->hid_handle = BTA_HH_GET_LE_DEV_HDL(p_cb->index);
+    bta_hh_cb.le_cb_index[BTA_HH_GET_LE_CB_IDX(p_cb->hid_handle)] = p_cb->index;
+
+    /* update DI information */
+    bta_hh_update_di_info(p_cb,
+                          p_dev_info->dscp_info.vendor_id,
+                          p_dev_info->dscp_info.product_id,
+                          p_dev_info->dscp_info.version,
+                          p_dev_info->dscp_info.flag);
+
+    /* add to BTA device list */
+    bta_hh_add_device_to_list(p_cb, p_cb->hid_handle,
+                              p_dev_info->attr_mask,
+                              &p_dev_info->dscp_info.descriptor,
+                              p_dev_info->sub_class,
+                              p_dev_info->dscp_info.ssr_max_latency,
+                              p_dev_info->dscp_info.ssr_min_tout,
+                              p_dev_info->app_id);
+
+    bta_hh_le_add_dev_bg_conn(p_cb, FALSE);
+
+    return p_cb->hid_handle;
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_le_remove_dev_bg_conn
+**
+** Description      Remove a LE HID device from back ground connection procedure.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hh_le_remove_dev_bg_conn(tBTA_HH_DEV_CB *p_dev_cb)
+{
+    if (p_dev_cb->in_bg_conn)
+    {
+        p_dev_cb->in_bg_conn = FALSE;
+
+        BTA_GATTC_CancelOpen(bta_hh_cb.gatt_if, p_dev_cb->addr, FALSE);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_le_update_scpp
+**
+** Description      action function to update the scan parameters on remote HID
+**                  device
+**
+** Parameters:
+**
+*******************************************************************************/
+void bta_hh_le_update_scpp(tBTA_HH_DEV_CB *p_dev_cb, tBTA_HH_DATA *p_buf)
+{
+    UINT8   value[4], *p = value;
+    tBTA_HH_CBDATA      cback_data;
+
+    if (!p_dev_cb->is_le_device ||
+        p_dev_cb->mode != BTA_HH_PROTO_RPT_MODE ||
+        p_dev_cb->scps_supported == FALSE) {
+        APPL_TRACE_ERROR("Can not set ScPP scan paramter as boot host, or remote does not support ScPP ");
+
+        cback_data.handle = p_dev_cb->hid_handle;
+        cback_data.status = BTA_HH_ERR;
+        (* bta_hh_cb.p_cback)(BTA_HH_UPDATE_SCPP_EVT, (tBTA_HH *)&cback_data);
+
+        return;
+    }
+
+    p_dev_cb->w4_evt = BTA_HH_UPDATE_SCPP_EVT;
+
+    UINT16_TO_STREAM(p, p_buf->le_scpp_update.scan_int);
+    UINT16_TO_STREAM(p, p_buf->le_scpp_update.scan_win);
+
+    gatt_queue_write_op(GATT_WRITE_CHAR, p_dev_cb->conn_id, p_dev_cb->scan_refresh_char_handle, 2,
+                        value, BTA_GATTC_TYPE_WRITE_NO_RSP);
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_gattc_callback
+**
+** Description      This is GATT client callback function used in BTA HH.
+**
+** Parameters:
+**
+*******************************************************************************/
+static void bta_hh_gattc_callback(tBTA_GATTC_EVT event, tBTA_GATTC *p_data)
+{
+    tBTA_HH_DEV_CB *p_dev_cb;
+    UINT16          evt;
+
+#ifdef BLUETOOTH_RTK
+    tBTM_SEC_DEV_REC    *p_dev_rec = btm_find_dev (p_data->enc_cmpl.remote_bda);
+#endif
+#if BTA_HH_DEBUG
+    APPL_TRACE_DEBUG("bta_hh_gattc_callback event = %d", event);
+#endif
+    if (p_data == NULL)
+        return;
+
+    switch (event)
+    {
+        case BTA_GATTC_REG_EVT: /* 0 */
+            bta_hh_le_register_cmpl(&p_data->reg_oper);
+            break;
+
+        case BTA_GATTC_DEREG_EVT: /* 1 */
+            bta_hh_cleanup_disable(p_data->reg_oper.status);
+            break;
+
+        case BTA_GATTC_OPEN_EVT: /* 2 */
+            p_dev_cb = bta_hh_le_find_dev_cb_by_bda(p_data->open.remote_bda);
+            if (p_dev_cb) {
+                bta_hh_sm_execute(p_dev_cb, BTA_HH_GATT_OPEN_EVT, (tBTA_HH_DATA *)&p_data->open);
+            }
+            break;
+
+        case BTA_GATTC_READ_CHAR_EVT: /* 3 */
+        case BTA_GATTC_READ_DESCR_EVT: /* 8 */
+            mark_as_not_executing(p_data->read.conn_id);
+            gatt_execute_next_op(p_data->read.conn_id);
+            p_dev_cb = bta_hh_le_find_dev_cb_by_conn_id(p_data->read.conn_id);
+            if (event == BTA_GATTC_READ_CHAR_EVT)
+                evt = BTA_HH_GATT_READ_CHAR_CMPL_EVT;
+            else
+                evt = BTA_HH_GATT_READ_DESCR_CMPL_EVT;
+
+            bta_hh_sm_execute(p_dev_cb, evt, (tBTA_HH_DATA *)&p_data->read);
+            break;
+
+        case BTA_GATTC_WRITE_DESCR_EVT: /* 9 */
+        case BTA_GATTC_WRITE_CHAR_EVT: /* 4 */
+            mark_as_not_executing(p_data->write.conn_id);
+            gatt_execute_next_op(p_data->write.conn_id);
+            p_dev_cb = bta_hh_le_find_dev_cb_by_conn_id(p_data->write.conn_id);
+            if (event == BTA_GATTC_WRITE_CHAR_EVT)
+                evt = BTA_HH_GATT_WRITE_CHAR_CMPL_EVT;
+            else
+                evt = BTA_HH_GATT_WRITE_DESCR_CMPL_EVT;
+
+            bta_hh_sm_execute(p_dev_cb, evt, (tBTA_HH_DATA *)&p_data->write);
+            break;
+
+        case BTA_GATTC_CLOSE_EVT: /* 5 */
+            bta_hh_le_close(&p_data->close);
+            break;
+
+        case BTA_GATTC_SEARCH_CMPL_EVT: /* 6 */
+            bta_hh_le_srvc_search_cmpl(&p_data->search_cmpl);
+            break;
+
+        case BTA_GATTC_NOTIF_EVT: /* 10 */
+            bta_hh_le_input_rpt_notify(&p_data->notify);
+            break;
+
+        case BTA_GATTC_ENC_CMPL_CB_EVT: /* 17 */
+            p_dev_cb = bta_hh_le_find_dev_cb_by_bda(p_data->enc_cmpl.remote_bda);
+            if (p_dev_cb) {
+#ifdef BLUETOOTH_RTK
+                if((p_dev_rec->sec_flags & (BTM_SEC_LE_ENCRYPTED | BTM_SEC_LE_AUTHENTICATED)) != 0)
+                {
+                    if(p_dev_cb->status == BTA_HH_ERR_SEC && p_dev_cb->reason == BTM_ERR_PROCESSING) {
+                        p_dev_cb->status = BTA_HH_OK;
+                        p_dev_cb->reason = BTM_SUCCESS;
+                    }
+
+                }
+#endif
+                bta_hh_sm_execute(p_dev_cb, BTA_HH_GATT_ENC_CMPL_EVT,
+                              (tBTA_HH_DATA *)&p_data->enc_cmpl);
+            }
+            break;
+#ifdef BLUETOOTH_RTK
+        case BTA_GATTC_CFG_MTU_EVT:
+#ifdef BLUETOOTH_RTK_API
+            rtkbt_api_Hook(RTKBT_HOOK_GATTC_CFG_MTU_EVT,(void *) p_data,sizeof(tBTA_GATTC_CFG_MTU));
+#endif
+            break;
+#endif
+
+        default:
+            break;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_le_hid_read_rpt_clt_cfg
+**
+** Description      a test command to read report descriptor client configuration
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hh_le_hid_read_rpt_clt_cfg(BD_ADDR bd_addr, UINT8 rpt_id)
+{
+    tBTA_HH_DEV_CB *p_cb = NULL;
+    tBTA_HH_LE_RPT *p_rpt ;
+    UINT8           index = BTA_HH_IDX_INVALID;
+
+    index = bta_hh_find_cb(bd_addr);
+    if ((index = bta_hh_find_cb(bd_addr))== BTA_HH_IDX_INVALID)
+    {
+        APPL_TRACE_ERROR("unknown device");
+        return;
+    }
+
+    p_cb = &bta_hh_cb.kdev[index];
+
+    p_rpt = bta_hh_le_find_rpt_by_idtype(p_cb->hid_srvc.report, p_cb->mode, BTA_HH_RPTT_INPUT, rpt_id);
+
+    if (p_rpt == NULL)
+    {
+        APPL_TRACE_ERROR("bta_hh_le_write_rpt: no matching report");
+        return;
+    }
+
+    bta_hh_le_read_char_dscrpt(p_cb, p_rpt->char_inst_id, GATT_UUID_CHAR_CLIENT_CONFIG);
+    return;
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_le_register_scpp_notif
+**
+** Description      register scan parameter refresh notitication complete
+**
+**
+** Parameters:
+**
+*******************************************************************************/
+static void bta_hh_le_register_scpp_notif(tBTA_HH_DEV_CB *p_dev_cb, tBTA_GATT_STATUS status)
+{
+    UINT8               sec_flag=0;
+
+    /* if write scan parameter sucessful */
+    /* if bonded and notification is not enabled, configure the client configuration */
+    if (status == BTA_GATT_OK &&
+        (p_dev_cb->scps_notify & BTA_HH_LE_SCPS_NOTIFY_SPT) != 0 &&
+        (p_dev_cb->scps_notify & BTA_HH_LE_SCPS_NOTIFY_ENB) == 0)
+    {
+        BTM_GetSecurityFlagsByTransport(p_dev_cb->addr, &sec_flag, BT_TRANSPORT_LE);
+        if ((sec_flag & BTM_SEC_FLAG_LKEY_KNOWN))
+        {
+            if (bta_hh_le_write_char_clt_cfg (p_dev_cb, p_dev_cb->scan_refresh_char_handle,
+                                              BTA_GATT_CLT_CONFIG_NOTIFICATION))
+            {
+                BTA_GATTC_RegisterForNotifications(bta_hh_cb.gatt_if, p_dev_cb->addr,
+                                                   p_dev_cb->scan_refresh_char_handle);
+                return;
+            }
+        }
+    }
+    bta_hh_le_register_scpp_notif_cmpl(p_dev_cb, status);
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_le_register_scpp_notif_cmpl
+**
+** Description      action function to register scan parameter refresh notitication
+**
+** Parameters:
+**
+*******************************************************************************/
+static void bta_hh_le_register_scpp_notif_cmpl(tBTA_HH_DEV_CB *p_dev_cb, tBTA_GATT_STATUS status)
+{
+    tBTA_HH_CBDATA      cback_data ;
+    UINT16              cb_evt = p_dev_cb->w4_evt;
+
+    if (status == BTA_GATT_OK)
+        p_dev_cb->scps_notify = (BTA_HH_LE_SCPS_NOTIFY_ENB | BTA_HH_LE_SCPS_NOTIFY_SPT);
+
+    cback_data.handle = p_dev_cb->hid_handle;
+    cback_data.status = (status == BTA_GATT_OK)? BTA_HH_OK : BTA_HH_ERR;
+    p_dev_cb->w4_evt = 0;
+    (* bta_hh_cb.p_cback)(cb_evt, (tBTA_HH *)&cback_data);
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_process_cache_rpt
+**
+** Description      Process the cached reports
+**
+** Parameters:
+**
+*******************************************************************************/
+//TODO(jpawlowski): uncomment when fixed
+// static void bta_hh_process_cache_rpt (tBTA_HH_DEV_CB *p_cb,
+//                                       tBTA_HH_RPT_CACHE_ENTRY *p_rpt_cache,
+//                                       UINT8 num_rpt)
+// {
+//     UINT8                       i = 0;
+//     tBTA_HH_LE_RPT              *p_rpt;
+
+//     if (num_rpt != 0)  /* no cache is found */
+//     {
+//         p_cb->hid_srvc.in_use = TRUE;
+
+//         /* set the descriptor info */
+//         p_cb->hid_srvc.descriptor.dl_len =
+//                 p_cb->dscp_info.descriptor.dl_len;
+//         p_cb->hid_srvc.descriptor.dsc_list =
+//                     p_cb->dscp_info.descriptor.dsc_list;
+
+//         for (; i <num_rpt; i ++, p_rpt_cache ++)
+//         {
+//             if ((p_rpt = bta_hh_le_find_alloc_report_entry (p_cb,
+//                                                p_rpt_cache->srvc_inst_id,
+//                                                p_rpt_cache->rpt_uuid,
+//                                                p_rpt_cache->char_inst_id,
+//                                                p_rpt_cache->prop))  == NULL)
+//             {
+//                 APPL_TRACE_ERROR("bta_hh_process_cache_rpt: allocation report entry failure");
+//                 break;
+//             }
+//             else
+//             {
+//                 p_rpt->rpt_type =  p_rpt_cache->rpt_type;
+//                 p_rpt->rpt_id   =  p_rpt_cache->rpt_id;
+
+//                 if(p_rpt->uuid == GATT_UUID_HID_BT_KB_INPUT ||
+//                     p_rpt->uuid == GATT_UUID_HID_BT_MOUSE_INPUT ||
+//                     (p_rpt->uuid == GATT_UUID_HID_REPORT && p_rpt->rpt_type == BTA_HH_RPTT_INPUT))
+//                 {
+//                     p_rpt->client_cfg_value = BTA_GATT_CLT_CONFIG_NOTIFICATION;
+//                 }
+//             }
+//         }
+//     }
+// }
+#ifdef BLUETOOTH_RTK
+/*******************************************************************************
+**
+** Function         bta_hh_le_deregister_input_notif
+**
+** Description      Deregister for all notifications for the report applicable
+**                  for the protocol mode.
+**
+** Parameters:
+**
+*******************************************************************************/
+void bta_hh_le_deregister_input_notif(tBTA_HH_DEV_CB *p_dev_cb, UINT8 proto_mode, BOOLEAN register_ba)
+{
+    tBTA_HH_LE_RPT  *p_rpt = &p_dev_cb->hid_srvc.report[0];
+
+#if BTA_HH_DEBUG == TRUE
+    APPL_TRACE_DEBUG("%s: bta_hh_le_deregister_input_notif mode: %d", __func__, proto_mode);
+#endif
+
+    for (int i = 0; i < BTA_HH_LE_RPT_MAX; i ++, p_rpt ++)
+    {
+        if (p_rpt->rpt_type == BTA_HH_RPTT_INPUT)
+        {
+
+            if (register_ba && p_rpt->uuid == GATT_UUID_BATTERY_LEVEL)
+            {
+                BTA_GATTC_DeregisterForNotifications(bta_hh_cb.gatt_if, p_dev_cb->addr,
+                                                   p_rpt->char_inst_id);
+            }
+            /* boot mode, deregister report input notification */
+            else if (proto_mode == BTA_HH_PROTO_BOOT_MODE)
+            {
+                if (p_rpt->uuid == GATT_UUID_HID_REPORT &&
+                    p_rpt->client_cfg_value == BTA_GATT_CLT_CONFIG_NOTIFICATION)
+                {
+                    APPL_TRACE_DEBUG("---> Deregister Report ID: %d", p_rpt->rpt_id);
+                    BTA_GATTC_DeregisterForNotifications(bta_hh_cb.gatt_if, p_dev_cb->addr,
+                                                         p_rpt->char_inst_id);
+                }
+                /* register boot reports notification */
+                else if (p_rpt->uuid == GATT_UUID_HID_BT_KB_INPUT ||
+                         p_rpt->uuid == GATT_UUID_HID_BT_MOUSE_INPUT)
+                {
+                    APPL_TRACE_DEBUG("<--- DeRegister Boot Report ID: %d", p_rpt->rpt_id);
+                    BTA_GATTC_DeregisterForNotifications(bta_hh_cb.gatt_if, p_dev_cb->addr,
+                                                       p_rpt->char_inst_id);
+                }
+            }
+            else if (proto_mode == BTA_HH_PROTO_RPT_MODE)
+            {
+                if ((p_rpt->uuid == GATT_UUID_HID_BT_KB_INPUT ||
+                    p_rpt->uuid == GATT_UUID_HID_BT_MOUSE_INPUT) &&
+                    p_rpt->client_cfg_value == BTA_GATT_CLT_CONFIG_NOTIFICATION)
+                {
+
+                    APPL_TRACE_DEBUG("---> Deregister Boot Report ID: %d", p_rpt->rpt_id);
+                    BTA_GATTC_DeregisterForNotifications(bta_hh_cb.gatt_if, p_dev_cb->addr,
+                                                         p_rpt->char_inst_id);
+                }
+                else if (p_rpt->uuid == GATT_UUID_HID_REPORT &&
+                         p_rpt->client_cfg_value == BTA_GATT_CLT_CONFIG_NOTIFICATION)
+                {
+                    APPL_TRACE_DEBUG("<--- DeRegister Report ID: %d", p_rpt->rpt_id);
+                    BTA_GATTC_DeregisterForNotifications(bta_hh_cb.gatt_if, p_dev_cb->addr,
+                                                       p_rpt->char_inst_id);
+                }
+            }
+            /*
+            else unknow protocol mode */
+        }
+    }
+}
+#endif
+#endif
+
diff --git a/rtkbt/code/bt/bta/hh/bta_hh_main.c b/rtkbt/code/bt/bta/hh/bta_hh_main.c
new file mode 100755
index 0000000..a4455ef
--- /dev/null
+++ b/rtkbt/code/bt/bta/hh/bta_hh_main.c
@@ -0,0 +1,585 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2005-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains the HID host main functions and state machine.
+ *
+ ******************************************************************************/
+
+#include "bt_target.h"
+
+#if defined(BTA_HH_INCLUDED) && (BTA_HH_INCLUDED == TRUE)
+
+#include <string.h>
+
+#include "bta_hh_api.h"
+#include "bta_hh_int.h"
+#include "bt_common.h"
+
+/*****************************************************************************
+** Constants and types
+*****************************************************************************/
+
+/* state machine action enumeration list */
+enum
+{
+    BTA_HH_API_DISC_ACT,        /* HID host process API close action    */
+    BTA_HH_OPEN_ACT,            /* HID host process BTA_HH_EVT_OPEN     */
+    BTA_HH_CLOSE_ACT,           /* HID host process BTA_HH_EVT_CLOSE    */
+    BTA_HH_DATA_ACT,            /* HID host receive data report         */
+    BTA_HH_CTRL_DAT_ACT,
+    BTA_HH_HANDSK_ACT,
+    BTA_HH_START_SDP,           /* HID host inquery                     */
+    BTA_HH_SDP_CMPL,
+    BTA_HH_WRITE_DEV_ACT,
+    BTA_HH_GET_DSCP_ACT,
+    BTA_HH_MAINT_DEV_ACT,
+    BTA_HH_OPEN_CMPL_ACT,
+    BTA_HH_OPEN_FAILURE,
+#if (defined BTA_HH_LE_INCLUDED && BTA_HH_LE_INCLUDED == TRUE)
+    BTA_HH_GATT_CLOSE,
+    BTA_HH_LE_OPEN_FAIL,
+    BTA_HH_GATT_OPEN,
+    BTA_HH_W4_LE_READ_CHAR,
+    BTA_HH_LE_READ_CHAR,
+    BTA_HH_W4_LE_READ_DESCR,
+    BTA_HH_LE_READ_DESCR,
+    BTA_HH_W4_LE_WRITE,
+    BTA_HH_LE_WRITE,
+    BTA_HH_WRITE_DESCR,
+    BTA_HH_START_SEC,
+    BTA_HH_SEC_CMPL,
+    BTA_HH_LE_UPDATE_SCPP,
+    BTA_HH_GATT_ENC_CMPL,
+#endif
+    BTA_HH_NUM_ACTIONS
+};
+
+#define BTA_HH_IGNORE       BTA_HH_NUM_ACTIONS
+
+/* type for action functions */
+typedef void (*tBTA_HH_ACTION)(tBTA_HH_DEV_CB *p_cb, tBTA_HH_DATA *p_data);
+
+/* action functions */
+const tBTA_HH_ACTION bta_hh_action[] =
+{
+    bta_hh_api_disc_act,
+    bta_hh_open_act,
+    bta_hh_close_act,
+    bta_hh_data_act,
+    bta_hh_ctrl_dat_act,
+    bta_hh_handsk_act,
+    bta_hh_start_sdp,
+    bta_hh_sdp_cmpl,
+    bta_hh_write_dev_act,
+    bta_hh_get_dscp_act,
+    bta_hh_maint_dev_act,
+    bta_hh_open_cmpl_act,
+    bta_hh_open_failure
+#if (defined BTA_HH_LE_INCLUDED && BTA_HH_LE_INCLUDED == TRUE)
+    ,bta_hh_gatt_close
+    ,bta_hh_le_open_fail
+    ,bta_hh_gatt_open
+    ,bta_hh_w4_le_read_char_cmpl
+    ,bta_hh_le_read_char_cmpl
+    ,bta_hh_w4_le_read_descr_cmpl
+    ,bta_hh_le_read_descr_cmpl
+    ,bta_hh_w4_le_write_cmpl
+    ,bta_hh_le_write_cmpl
+    ,bta_hh_le_write_char_descr_cmpl
+    ,bta_hh_start_security
+    ,bta_hh_security_cmpl
+    ,bta_hh_le_update_scpp
+    ,bta_hh_le_notify_enc_cmpl
+#endif
+};
+
+/* state table information */
+#define BTA_HH_ACTION                   0       /* position of action */
+#define BTA_HH_NEXT_STATE               1       /* position of next state */
+#define BTA_HH_NUM_COLS                 2       /* number of columns */
+
+/* state table for idle state */
+const UINT8 bta_hh_st_idle[][BTA_HH_NUM_COLS] =
+{
+/* Event                          Action                    Next state */
+/* BTA_HH_API_OPEN_EVT      */    {BTA_HH_START_SDP,     BTA_HH_W4_CONN_ST },
+/* BTA_HH_API_CLOSE_EVT     */    {BTA_HH_IGNORE,        BTA_HH_IDLE_ST    },
+/* BTA_HH_INT_OPEN_EVT      */    {BTA_HH_OPEN_ACT,      BTA_HH_W4_CONN_ST },
+/* BTA_HH_INT_CLOSE_EVT     */    {BTA_HH_CLOSE_ACT,     BTA_HH_IDLE_ST    },
+/* BTA_HH_INT_DATA_EVT      */    {BTA_HH_IGNORE,        BTA_HH_IDLE_ST    },
+/* BTA_HH_INT_CTRL_DATA     */    {BTA_HH_IGNORE,        BTA_HH_IDLE_ST    },
+/* BTA_HH_INT_HANDSK_EVT    */    {BTA_HH_IGNORE,        BTA_HH_IDLE_ST    },
+/* BTA_HH_SDP_CMPL_EVT      */    {BTA_HH_IGNORE,        BTA_HH_IDLE_ST    },
+/* BTA_HH_API_WRITE_DEV_EVT */    {BTA_HH_IGNORE,        BTA_HH_IDLE_ST    },
+/* BTA_HH_API_GET_DSCP_EVT  */    {BTA_HH_IGNORE,        BTA_HH_IDLE_ST    },
+/* BTA_HH_API_MAINT_DEV_EVT */    {BTA_HH_MAINT_DEV_ACT, BTA_HH_IDLE_ST    },
+/* BTA_HH_OPEN_CMPL_EVT        */  {BTA_HH_OPEN_CMPL_ACT, BTA_HH_CONN_ST    }
+#if (defined BTA_HH_LE_INCLUDED && BTA_HH_LE_INCLUDED == TRUE)
+/* BTA_HH_GATT_CLOSE_EVT    */   ,{BTA_HH_IGNORE,         BTA_HH_IDLE_ST    }
+/* BTA_HH_GATT_OPEN_EVT    */    ,{BTA_HH_GATT_OPEN,      BTA_HH_W4_CONN_ST }
+/* BTA_HH_START_ENC_EVT    */    ,{BTA_HH_IGNORE,         BTA_HH_IDLE_ST    }
+/* BTA_HH_ENC_CMPL_EVT     */    ,{BTA_HH_IGNORE,         BTA_HH_IDLE_ST    }
+/* READ_CHAR_CMPL_EVT */         ,{BTA_HH_IGNORE,       BTA_HH_IDLE_ST  }
+/* BTA_HH_GATT_WRITE_CMPL_EVT*/    ,{BTA_HH_IGNORE,       BTA_HH_IDLE_ST  }
+/* READ_DESCR_CMPL_EVT */        ,{BTA_HH_IGNORE,           BTA_HH_IDLE_ST  }
+/* WRITE_DESCR_CMPL_EVT */       ,{BTA_HH_IGNORE,           BTA_HH_IDLE_ST   }
+/* SCPP_UPDATE_EVT */            ,{BTA_HH_IGNORE,           BTA_HH_IDLE_ST   }
+/* BTA_HH_GATT_ENC_CMPL_EVT */   ,{BTA_HH_IGNORE,           BTA_HH_IDLE_ST   }
+#endif
+
+};
+
+
+const UINT8 bta_hh_st_w4_conn[][BTA_HH_NUM_COLS] =
+{
+/* Event                          Action                 Next state */
+/* BTA_HH_API_OPEN_EVT      */    {BTA_HH_IGNORE,        BTA_HH_W4_CONN_ST },
+/* BTA_HH_API_CLOSE_EVT     */    {BTA_HH_IGNORE,        BTA_HH_IDLE_ST    },
+/* BTA_HH_INT_OPEN_EVT      */    {BTA_HH_OPEN_ACT,      BTA_HH_W4_CONN_ST },
+/* BTA_HH_INT_CLOSE_EVT     */    {BTA_HH_OPEN_FAILURE,  BTA_HH_IDLE_ST    },
+/* BTA_HH_INT_DATA_EVT      */    {BTA_HH_IGNORE,        BTA_HH_W4_CONN_ST },
+/* BTA_HH_INT_CTRL_DATA     */    {BTA_HH_IGNORE,        BTA_HH_W4_CONN_ST },
+/* BTA_HH_INT_HANDSK_EVT    */    {BTA_HH_IGNORE,        BTA_HH_W4_CONN_ST },
+/* BTA_HH_SDP_CMPL_EVT      */    {BTA_HH_SDP_CMPL,      BTA_HH_W4_CONN_ST },
+/* BTA_HH_API_WRITE_DEV_EVT */    {BTA_HH_WRITE_DEV_ACT, BTA_HH_W4_CONN_ST },
+/* BTA_HH_API_GET_DSCP_EVT  */    {BTA_HH_IGNORE,        BTA_HH_W4_CONN_ST },
+/* BTA_HH_API_MAINT_DEV_EVT */    {BTA_HH_MAINT_DEV_ACT, BTA_HH_IDLE_ST    },
+/* BTA_HH_OPEN_CMPL_EVT     */    {BTA_HH_OPEN_CMPL_ACT, BTA_HH_CONN_ST    }
+#if (defined BTA_HH_LE_INCLUDED && BTA_HH_LE_INCLUDED == TRUE)
+/* BTA_HH_GATT_CLOSE_EVT    */   ,{BTA_HH_LE_OPEN_FAIL,  BTA_HH_IDLE_ST    }
+/* BTA_HH_GATT_OPEN_EVT    */    ,{BTA_HH_GATT_OPEN,     BTA_HH_W4_CONN_ST }
+/* BTA_HH_START_ENC_EVT    */    ,{BTA_HH_START_SEC,     BTA_HH_W4_SEC     }
+/* BTA_HH_ENC_CMPL_EVT     */    ,{BTA_HH_IGNORE,        BTA_HH_W4_CONN_ST }
+/* READ_CHAR_CMPL_EVT */        ,{BTA_HH_W4_LE_READ_CHAR,    BTA_HH_W4_CONN_ST  }
+/* BTA_HH_GATT_WRITE_CMPL_EVT*/  ,{BTA_HH_W4_LE_WRITE,    BTA_HH_W4_CONN_ST  }
+/* READ_DESCR_CMPL_EVT */        ,{BTA_HH_W4_LE_READ_DESCR, BTA_HH_W4_CONN_ST  }
+/* WRITE_DESCR_CMPL_EVT */       ,{BTA_HH_WRITE_DESCR,   BTA_HH_W4_CONN_ST   }
+/* SCPP_UPDATE_EVT */            ,{BTA_HH_IGNORE,           BTA_HH_W4_CONN_ST   }
+/* BTA_HH_GATT_ENC_CMPL_EVT */   ,{BTA_HH_IGNORE,        BTA_HH_W4_CONN_ST }
+#endif
+};
+
+
+const UINT8 bta_hh_st_connected[][BTA_HH_NUM_COLS] =
+{
+/* Event                          Action                 Next state */
+/* BTA_HH_API_OPEN_EVT      */    {BTA_HH_IGNORE,        BTA_HH_CONN_ST    },
+/* BTA_HH_API_CLOSE_EVT     */    {BTA_HH_API_DISC_ACT,  BTA_HH_CONN_ST    },
+/* BTA_HH_INT_OPEN_EVT      */    {BTA_HH_OPEN_ACT,      BTA_HH_CONN_ST    },
+/* BTA_HH_INT_CLOSE_EVT     */    {BTA_HH_CLOSE_ACT,     BTA_HH_IDLE_ST    },
+/* BTA_HH_INT_DATA_EVT      */    {BTA_HH_DATA_ACT,      BTA_HH_CONN_ST    },
+/* BTA_HH_INT_CTRL_DATA     */    {BTA_HH_CTRL_DAT_ACT,  BTA_HH_CONN_ST    },
+/* BTA_HH_INT_HANDSK_EVT    */    {BTA_HH_HANDSK_ACT,    BTA_HH_CONN_ST    },
+/* BTA_HH_SDP_CMPL_EVT      */    {BTA_HH_IGNORE,         BTA_HH_CONN_ST       },
+/* BTA_HH_API_WRITE_DEV_EVT */    {BTA_HH_WRITE_DEV_ACT, BTA_HH_CONN_ST    },
+/* BTA_HH_API_GET_DSCP_EVT  */    {BTA_HH_GET_DSCP_ACT,  BTA_HH_CONN_ST    },
+/* BTA_HH_API_MAINT_DEV_EVT */    {BTA_HH_MAINT_DEV_ACT, BTA_HH_CONN_ST    },
+/* BTA_HH_OPEN_CMPL_EVT        */    {BTA_HH_IGNORE,         BTA_HH_CONN_ST    }
+#if (defined BTA_HH_LE_INCLUDED && BTA_HH_LE_INCLUDED == TRUE)
+/* BTA_HH_GATT_CLOSE_EVT    */    ,{BTA_HH_GATT_CLOSE,    BTA_HH_IDLE_ST    }
+/* BTA_HH_GATT_OPEN_EVT    */    ,{BTA_HH_IGNORE,        BTA_HH_CONN_ST    }
+/* BTA_HH_START_ENC_EVT    */    ,{BTA_HH_IGNORE,        BTA_HH_CONN_ST     }
+/* BTA_HH_ENC_CMPL_EVT     */    ,{BTA_HH_IGNORE,        BTA_HH_CONN_ST     }
+/* READ_CHAR_CMPL_EVT */         ,{BTA_HH_LE_READ_CHAR,  BTA_HH_CONN_ST     }
+/* WRITE_CHAR_CMPL_EVT*/         ,{BTA_HH_LE_WRITE,      BTA_HH_CONN_ST     }
+/* READ_DESCR_CMPL_EVT */        ,{BTA_HH_LE_READ_DESCR, BTA_HH_CONN_ST     }   /* do not currently read any descr when connection up */
+/* WRITE_DESCR_CMPL_EVT */       ,{BTA_HH_WRITE_DESCR,   BTA_HH_CONN_ST     }   /* do not currently write any descr when connection up */
+/* SCPP_UPDATE_EVT */            ,{BTA_HH_LE_UPDATE_SCPP,  BTA_HH_CONN_ST   }
+/* BTA_HH_GATT_ENC_CMPL_EVT */   ,{BTA_HH_IGNORE,        BTA_HH_CONN_ST     }
+#endif
+};
+#if (defined BTA_HH_LE_INCLUDED && BTA_HH_LE_INCLUDED == TRUE)
+const UINT8 bta_hh_st_w4_sec[][BTA_HH_NUM_COLS] =
+{
+/* Event                          Action                 Next state */
+/* BTA_HH_API_OPEN_EVT      */    {BTA_HH_IGNORE,        BTA_HH_W4_SEC  },
+/* BTA_HH_API_CLOSE_EVT     */    {BTA_HH_API_DISC_ACT,  BTA_HH_W4_SEC  },
+/* BTA_HH_INT_OPEN_EVT      */    {BTA_HH_IGNORE,        BTA_HH_W4_SEC  },
+/* BTA_HH_INT_CLOSE_EVT     */    {BTA_HH_OPEN_FAILURE,  BTA_HH_IDLE_ST },
+/* BTA_HH_INT_DATA_EVT      */    {BTA_HH_IGNORE,        BTA_HH_W4_SEC  },
+/* BTA_HH_INT_CTRL_DATA     */    {BTA_HH_IGNORE,        BTA_HH_W4_SEC  },
+/* BTA_HH_INT_HANDSK_EVT    */    {BTA_HH_IGNORE,        BTA_HH_W4_SEC  },
+/* BTA_HH_SDP_CMPL_EVT      */    {BTA_HH_IGNORE,        BTA_HH_W4_SEC  },
+/* BTA_HH_API_WRITE_DEV_EVT */    {BTA_HH_IGNORE  ,      BTA_HH_W4_SEC  },
+/* BTA_HH_API_GET_DSCP_EVT  */    {BTA_HH_IGNORE,        BTA_HH_W4_SEC  },
+/* BTA_HH_API_MAINT_DEV_EVT */    {BTA_HH_MAINT_DEV_ACT, BTA_HH_W4_SEC  },
+/* BTA_HH_OPEN_CMPL_EVT     */    {BTA_HH_IGNORE,        BTA_HH_W4_SEC  },
+/* BTA_HH_GATT_CLOSE_EVT    */    {BTA_HH_LE_OPEN_FAIL,  BTA_HH_IDLE_ST },
+/* BTA_HH_GATT_OPEN_EVT    */     {BTA_HH_IGNORE,        BTA_HH_W4_SEC  },
+/* BTA_HH_START_ENC_EVT    */     {BTA_HH_IGNORE,        BTA_HH_W4_SEC     },
+/* BTA_HH_ENC_CMPL_EVT     */     {BTA_HH_SEC_CMPL,      BTA_HH_W4_CONN_ST },
+/* READ_CHAR_CMPL_EVT */          {BTA_HH_IGNORE,        BTA_HH_W4_SEC     },
+/* BTA_HH_GATT_WRITE_CMPL_EVT*/   {BTA_HH_IGNORE,        BTA_HH_W4_SEC     },
+/* READ_DESCR_CMPL_EVT */         {BTA_HH_IGNORE,        BTA_HH_W4_SEC   },
+/* WRITE_DESCR_CMPL_EVT */        {BTA_HH_IGNORE,        BTA_HH_W4_SEC   }
+/* SCPP_UPDATE_EVT */            ,{BTA_HH_IGNORE,        BTA_HH_W4_SEC   }
+/* BTA_HH_GATT_ENC_CMPL_EVT */   ,{BTA_HH_GATT_ENC_CMPL, BTA_HH_W4_SEC   }
+};
+#endif
+
+/* type for state table */
+typedef const UINT8 (*tBTA_HH_ST_TBL)[BTA_HH_NUM_COLS];
+
+/* state table */
+const tBTA_HH_ST_TBL bta_hh_st_tbl[] =
+{
+    bta_hh_st_idle,
+    bta_hh_st_w4_conn,
+    bta_hh_st_connected
+#if (defined BTA_HH_LE_INCLUDED && BTA_HH_LE_INCLUDED == TRUE)
+    ,bta_hh_st_w4_sec
+#endif
+};
+
+/*****************************************************************************
+** Global data
+*****************************************************************************/
+#if BTA_DYNAMIC_MEMORY == FALSE
+tBTA_HH_CB  bta_hh_cb;
+#endif
+/*****************************************************************************
+** Static functions
+*****************************************************************************/
+#if BTA_HH_DEBUG == TRUE
+static char *bta_hh_evt_code(tBTA_HH_INT_EVT evt_code);
+static char *bta_hh_state_code(tBTA_HH_STATE state_code);
+#endif
+
+/*******************************************************************************
+**
+** Function         bta_hh_sm_execute
+**
+** Description      State machine event handling function for HID Host
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hh_sm_execute(tBTA_HH_DEV_CB *p_cb, UINT16 event, tBTA_HH_DATA * p_data)
+{
+    tBTA_HH_ST_TBL  state_table;
+    UINT8           action;
+    tBTA_HH         cback_data;
+    tBTA_HH_EVT     cback_event = 0;
+#if BTA_HH_DEBUG == TRUE
+    tBTA_HH_STATE   in_state ;
+    UINT16          debug_event = event;
+#endif
+
+    memset(&cback_data, 0, sizeof(tBTA_HH));
+
+    /* handle exception, no valid control block was found */
+    if (!p_cb)
+    {
+        /* BTA HH enabled already? otherwise ignore the event although it's bad*/
+        if (bta_hh_cb.p_cback != NULL)
+        {
+            switch (event)
+            {
+            /* no control block available for new connection */
+            case BTA_HH_API_OPEN_EVT:
+                cback_event = BTA_HH_OPEN_EVT;
+                /* build cback data */
+                bdcpy(cback_data.conn.bda, ((tBTA_HH_API_CONN *)p_data)->bd_addr);
+                cback_data.conn.status  = BTA_HH_ERR_DB_FULL;
+                cback_data.conn.handle  = BTA_HH_INVALID_HANDLE;
+                break;
+            /* DB full, BTA_HhAddDev */
+            case BTA_HH_API_MAINT_DEV_EVT:
+                cback_event = p_data->api_maintdev.sub_event;
+
+                if (p_data->api_maintdev.sub_event == BTA_HH_ADD_DEV_EVT)
+                {
+                    bdcpy(cback_data.dev_info.bda, p_data->api_maintdev.bda);
+                    cback_data.dev_info.status    = BTA_HH_ERR_DB_FULL;
+                    cback_data.dev_info.handle    = BTA_HH_INVALID_HANDLE;
+                }
+                else
+                {
+                    cback_data.dev_info.status    = BTA_HH_ERR_HDL;
+                    cback_data.dev_info.handle    = (UINT8)p_data->api_maintdev.hdr.layer_specific;
+                }
+                break;
+            case BTA_HH_API_WRITE_DEV_EVT:
+                cback_event = (p_data->api_sndcmd.t_type - BTA_HH_FST_BTE_TRANS_EVT) +
+                        BTA_HH_FST_TRANS_CB_EVT;
+                osi_free_and_reset((void **)&p_data->api_sndcmd.p_data);
+                if (p_data->api_sndcmd.t_type == HID_TRANS_SET_PROTOCOL ||
+                    p_data->api_sndcmd.t_type == HID_TRANS_SET_REPORT ||
+                    p_data->api_sndcmd.t_type == HID_TRANS_SET_IDLE)
+                {
+                    cback_data.dev_status.status = BTA_HH_ERR_HDL;
+                    cback_data.dev_status.handle = (UINT8)p_data->api_sndcmd.hdr.layer_specific;
+                }
+                else if (p_data->api_sndcmd.t_type != HID_TRANS_DATA &&
+                    p_data->api_sndcmd.t_type != HID_TRANS_CONTROL)
+                {
+                    cback_data.hs_data.handle = (UINT8)p_data->api_sndcmd.hdr.layer_specific;
+                    cback_data.hs_data.status = BTA_HH_ERR_HDL;
+                    /* hs_data.rsp_data will be all zero, which is not valid value */
+                }
+                else if (p_data->api_sndcmd.t_type == HID_TRANS_CONTROL &&
+                         p_data->api_sndcmd.param == BTA_HH_CTRL_VIRTUAL_CABLE_UNPLUG)
+                {
+                    cback_data.status = BTA_HH_ERR_HDL;
+                    cback_event = BTA_HH_VC_UNPLUG_EVT;
+                }
+                else
+                    cback_event = 0;
+                break;
+
+            case BTA_HH_API_CLOSE_EVT:
+                cback_event = BTA_HH_CLOSE_EVT;
+
+                cback_data.dev_status.status = BTA_HH_ERR_HDL;
+                cback_data.dev_status.handle = (UINT8)p_data->api_sndcmd.hdr.layer_specific;
+                break;
+
+            default:
+                /* invalid handle, call bad API event */
+                APPL_TRACE_ERROR("wrong device handle: [%d]", p_data->hdr.layer_specific);
+                /* Free the callback buffer now */
+                if (p_data != NULL)
+                    osi_free_and_reset((void **)&p_data->hid_cback.p_data);
+                break;
+            }
+           if (cback_event)
+               (* bta_hh_cb.p_cback)(cback_event, &cback_data);
+        }
+    }
+    /* corresponding CB is found, go to state machine */
+    else
+    {
+#if BTA_HH_DEBUG == TRUE
+        in_state = p_cb->state;
+        APPL_TRACE_EVENT("bta_hh_sm_execute: State 0x%02x [%s], Event [%s]",
+                          in_state, bta_hh_state_code(in_state),
+                          bta_hh_evt_code(debug_event));
+#endif
+
+        if ((p_cb->state == BTA_HH_NULL_ST) || (p_cb->state >= BTA_HH_INVALID_ST))
+        {
+            APPL_TRACE_ERROR("bta_hh_sm_execute: Invalid state State = 0x%x, Event = %d",
+                              p_cb->state,event);
+            return;
+        }
+        state_table = bta_hh_st_tbl[p_cb->state - 1];
+
+        event &= 0xff;
+
+        p_cb->state = state_table[event][BTA_HH_NEXT_STATE] ;
+
+        if ((action = state_table[event][BTA_HH_ACTION]) != BTA_HH_IGNORE)
+        {
+            (*bta_hh_action[action])(p_cb, p_data);
+        }
+
+#if BTA_HH_DEBUG == TRUE
+        if (in_state != p_cb->state)
+        {
+            APPL_TRACE_DEBUG("HH State Change: [%s] -> [%s] after Event [%s]",
+                          bta_hh_state_code(in_state),
+                          bta_hh_state_code(p_cb->state),
+                          bta_hh_evt_code(debug_event));
+        }
+#endif
+    }
+
+    return;
+}
+/*******************************************************************************
+**
+** Function         bta_hh_hdl_event
+**
+** Description      HID host main event handling function.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+BOOLEAN bta_hh_hdl_event(BT_HDR *p_msg)
+{
+    UINT8           index = BTA_HH_IDX_INVALID;
+    tBTA_HH_DEV_CB *p_cb = NULL;
+
+    switch (p_msg->event)
+    {
+        case BTA_HH_API_ENABLE_EVT:
+            bta_hh_api_enable((tBTA_HH_DATA *) p_msg);
+            break;
+
+        case BTA_HH_API_DISABLE_EVT:
+            bta_hh_api_disable();
+            break;
+
+        case BTA_HH_DISC_CMPL_EVT:          /* disable complete */
+            bta_hh_disc_cmpl();
+            break;
+
+        default:
+            /* all events processed in state machine need to find corresponding
+                CB before proceed */
+            if (p_msg->event == BTA_HH_API_OPEN_EVT)
+            {
+                index = bta_hh_find_cb(((tBTA_HH_API_CONN *)p_msg)->bd_addr);
+            }
+            else if (p_msg->event == BTA_HH_API_MAINT_DEV_EVT)
+            {
+                /* if add device */
+                if (((tBTA_HH_MAINT_DEV *)p_msg)->sub_event == BTA_HH_ADD_DEV_EVT)
+                {
+                    index = bta_hh_find_cb(((tBTA_HH_MAINT_DEV *)p_msg)->bda);
+                }
+                else /* else remove device by handle */
+                {
+                    index = bta_hh_dev_handle_to_cb_idx((UINT8)p_msg->layer_specific);
+                    /* If BT disable is done while the HID device is connected and Link_Key uses unauthenticated combination
+                      * then we can get into a situation where remove_bonding is called with the index set to 0 (without getting
+                      * cleaned up). Only when VIRTUAL_UNPLUG is called do we cleanup the index and make it MAX_KNOWN.
+                      * So if REMOVE_DEVICE is called and in_use is FALSE then we should treat this as a NULL p_cb. Hence we
+                      * force the index to be IDX_INVALID
+                      */
+                    if ((index != BTA_HH_IDX_INVALID) &&
+                        (bta_hh_cb.kdev[index].in_use == FALSE)) {
+                        index = BTA_HH_IDX_INVALID;
+                    }
+                }
+            }
+            else if (p_msg->event == BTA_HH_INT_OPEN_EVT)
+            {
+                index = bta_hh_find_cb(((tBTA_HH_CBACK_DATA *)p_msg)->addr);
+            }
+            else
+                index = bta_hh_dev_handle_to_cb_idx((UINT8)p_msg->layer_specific);
+
+            if (index != BTA_HH_IDX_INVALID)
+                p_cb = &bta_hh_cb.kdev[index];
+
+#if BTA_HH_DEBUG
+            APPL_TRACE_DEBUG("bta_hh_hdl_event:: handle = %d dev_cb[%d] ", p_msg->layer_specific, index);
+#endif
+            bta_hh_sm_execute(p_cb, p_msg->event, (tBTA_HH_DATA *) p_msg);
+    }
+    return (TRUE);
+}
+
+/*****************************************************************************
+**  Debug Functions
+*****************************************************************************/
+#if BTA_HH_DEBUG
+/*******************************************************************************
+**
+** Function         bta_hh_evt_code
+**
+** Description
+**
+** Returns          void
+**
+*******************************************************************************/
+static char *bta_hh_evt_code(tBTA_HH_INT_EVT evt_code)
+{
+  switch(evt_code)
+    {
+    case BTA_HH_API_DISABLE_EVT:
+        return "BTA_HH_API_DISABLE_EVT";
+    case BTA_HH_API_ENABLE_EVT:
+        return "BTA_HH_API_ENABLE_EVT";
+    case BTA_HH_API_OPEN_EVT:
+        return "BTA_HH_API_OPEN_EVT";
+    case BTA_HH_API_CLOSE_EVT:
+        return "BTA_HH_API_CLOSE_EVT";
+    case BTA_HH_INT_OPEN_EVT:
+        return "BTA_HH_INT_OPEN_EVT";
+    case BTA_HH_INT_CLOSE_EVT:
+        return "BTA_HH_INT_CLOSE_EVT";
+    case BTA_HH_INT_HANDSK_EVT:
+        return "BTA_HH_INT_HANDSK_EVT";
+    case BTA_HH_INT_DATA_EVT:
+        return "BTA_HH_INT_DATA_EVT";
+    case BTA_HH_INT_CTRL_DATA:
+        return "BTA_HH_INT_CTRL_DATA";
+    case BTA_HH_API_WRITE_DEV_EVT:
+        return "BTA_HH_API_WRITE_DEV_EVT";
+    case BTA_HH_SDP_CMPL_EVT:
+        return "BTA_HH_SDP_CMPL_EVT";
+    case BTA_HH_DISC_CMPL_EVT:
+        return "BTA_HH_DISC_CMPL_EVT";
+    case BTA_HH_API_MAINT_DEV_EVT:
+        return "BTA_HH_API_MAINT_DEV_EVT";
+    case BTA_HH_API_GET_DSCP_EVT:
+        return "BTA_HH_API_GET_DSCP_EVT";
+    case BTA_HH_OPEN_CMPL_EVT:
+        return "BTA_HH_OPEN_CMPL_EVT";
+#if (defined BTA_HH_LE_INCLUDED && BTA_HH_LE_INCLUDED == TRUE)
+    case BTA_HH_GATT_CLOSE_EVT:
+        return "BTA_HH_GATT_CLOSE_EVT";
+    case BTA_HH_GATT_OPEN_EVT:
+        return "BTA_HH_GATT_OPEN_EVT";
+    case BTA_HH_START_ENC_EVT:
+        return "BTA_HH_START_ENC_EVT";
+    case BTA_HH_ENC_CMPL_EVT:
+        return "BTA_HH_ENC_CMPL_EVT";
+    case BTA_HH_GATT_READ_CHAR_CMPL_EVT:
+        return "BTA_HH_GATT_READ_CHAR_CMPL_EVT";
+    case BTA_HH_GATT_WRITE_CHAR_CMPL_EVT:
+        return "BTA_HH_GATT_WRITE_CHAR_CMPL_EVT";
+    case BTA_HH_GATT_READ_DESCR_CMPL_EVT:
+        return "BTA_HH_GATT_READ_DESCR_CMPL_EVT";
+    case BTA_HH_GATT_WRITE_DESCR_CMPL_EVT:
+        return "BTA_HH_GATT_WRITE_DESCR_CMPL_EVT";
+#endif
+    default:
+        return "unknown HID Host event code";
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_state_code
+**
+** Description      get string representation of HID host state code.
+**
+** Returns          void
+**
+*******************************************************************************/
+static char *bta_hh_state_code(tBTA_HH_STATE state_code)
+{
+    switch (state_code)
+    {
+    case BTA_HH_NULL_ST:
+        return"BTA_HH_NULL_ST";
+    case BTA_HH_IDLE_ST:
+        return "BTA_HH_IDLE_ST";
+    case BTA_HH_W4_CONN_ST:
+        return "BTA_HH_W4_CONN_ST";
+    case BTA_HH_CONN_ST:
+        return "BTA_HH_CONN_ST";
+#if (defined BTA_HH_LE_INCLUDED && BTA_HH_LE_INCLUDED == TRUE)
+    case BTA_HH_W4_SEC:
+        return "BTA_HH_W4_SEC";
+#endif
+    default:
+        return "unknown HID Host state";
+    }
+}
+
+#endif  /* Debug Functions */
+
+#endif /* BTA_HH_INCLUDED */
diff --git a/rtkbt/code/bt/bta/hh/bta_hh_utils.c b/rtkbt/code/bt/bta/hh/bta_hh_utils.c
new file mode 100755
index 0000000..c8ea864
--- /dev/null
+++ b/rtkbt/code/bt/bta/hh/bta_hh_utils.c
@@ -0,0 +1,535 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2005-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+#include <string.h>
+
+#include "bt_target.h"
+#if defined(BTA_HH_INCLUDED) && (BTA_HH_INCLUDED == TRUE)
+
+
+#include "bta_hh_int.h"
+
+/* if SSR max latency is not defined by remote device, set the default value
+   as half of the link supervision timeout */
+#define BTA_HH_GET_DEF_SSR_MAX_LAT(x)   ((x)>> 1)
+
+/*****************************************************************************
+**  Constants
+*****************************************************************************/
+#define BTA_HH_KB_CTRL_MASK         0x11
+#define BTA_HH_KB_SHIFT_MASK        0x22
+#define BTA_HH_KB_ALT_MASK          0x44
+#define BTA_HH_KB_GUI_MASK          0x88
+
+#define BTA_HH_KB_CAPS_LOCK      0x39           /* caps lock */
+#define BTA_HH_KB_NUM_LOCK       0x53           /* num lock */
+
+
+#define BTA_HH_MAX_RPT_CHARS    8
+
+static const UINT8 bta_hh_mod_key_mask[BTA_HH_MOD_MAX_KEY] =
+{
+    BTA_HH_KB_CTRL_MASK,
+    BTA_HH_KB_SHIFT_MASK,
+    BTA_HH_KB_ALT_MASK,
+    BTA_HH_KB_GUI_MASK
+};
+
+
+/*******************************************************************************
+**
+** Function         bta_hh_find_cb
+**
+** Description      Find best available control block according to BD address.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+UINT8  bta_hh_find_cb(BD_ADDR bda)
+{
+    UINT8 xx;
+
+    /* See how many active devices there are. */
+    for (xx = 0; xx < BTA_HH_MAX_DEVICE; xx++)
+    {
+        /* check if any active/known devices is a match */
+        if ((!bdcmp (bda, bta_hh_cb.kdev[xx].addr) &&
+              bdcmp(bda, bd_addr_null) != 0) )
+        {
+#if BTA_HH_DEBUG
+            APPL_TRACE_DEBUG("found kdev_cb[%d] hid_handle = %d ", xx,
+                                bta_hh_cb.kdev[xx].hid_handle)
+#endif
+            return xx;
+        }
+#if BTA_HH_DEBUG
+        else
+            APPL_TRACE_DEBUG("in_use ? [%d] kdev[%d].hid_handle = %d state = [%d]",
+                            bta_hh_cb.kdev[xx].in_use, xx,
+                            bta_hh_cb.kdev[xx].hid_handle,
+                            bta_hh_cb.kdev[xx].state);
+#endif
+    }
+
+    /* if no active device match, find a spot for it */
+    for (xx = 0; xx < BTA_HH_MAX_DEVICE; xx++)
+    {
+        if (!bta_hh_cb.kdev[xx].in_use)
+        {
+            bdcpy(bta_hh_cb.kdev[xx].addr, bda);
+            break;
+        }
+    }
+    /* If device list full, report BTA_HH_IDX_INVALID */
+#if BTA_HH_DEBUG
+    APPL_TRACE_DEBUG("bta_hh_find_cb:: index = %d while max = %d",
+                        xx, BTA_HH_MAX_DEVICE);
+#endif
+
+    if (xx == BTA_HH_MAX_DEVICE)
+        xx = BTA_HH_IDX_INVALID;
+
+    return xx;
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_clean_up_kdev
+**
+** Description      Clean up device control block when device is removed from
+**                  manitainace list, and update control block index map.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hh_clean_up_kdev(tBTA_HH_DEV_CB *p_cb)
+{
+    UINT8 index;
+
+    if (p_cb->hid_handle != BTA_HH_INVALID_HANDLE )
+    {
+#if BTA_HH_LE_INCLUDED == TRUE
+        if (p_cb->is_le_device)
+            bta_hh_cb.le_cb_index[BTA_HH_GET_LE_CB_IDX(p_cb->hid_handle)] = BTA_HH_IDX_INVALID;
+        else
+#endif
+            bta_hh_cb.cb_index[p_cb->hid_handle] = BTA_HH_IDX_INVALID;
+    }
+
+    /* reset device control block */
+    index = p_cb->index;                        /* Preserve index for this control block */
+
+    /* Free buffer for report descriptor info */
+    osi_free_and_reset((void **)&p_cb->dscp_info.descriptor.dsc_list);
+
+    memset(p_cb, 0, sizeof(tBTA_HH_DEV_CB));    /* Reset control block */
+
+    p_cb->index = index;                        /* Restore index for this control block */
+    p_cb->state      = BTA_HH_IDLE_ST;
+    p_cb->hid_handle = BTA_HH_INVALID_HANDLE;
+
+}
+/*******************************************************************************
+**
+** Function         bta_hh_update_di_info
+**
+** Description      Maintain a known device list for BTA HH.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hh_update_di_info(tBTA_HH_DEV_CB *p_cb, UINT16 vendor_id, UINT16 product_id,
+                           UINT16 version, UINT8 flag)
+{
+#if BTA_HH_DEBUG
+    APPL_TRACE_DEBUG("vendor_id = 0x%2x product_id = 0x%2x version = 0x%2x",
+                        vendor_id, product_id, version);
+#endif
+    p_cb->dscp_info.vendor_id     =   vendor_id;
+    p_cb->dscp_info.product_id    =   product_id;
+    p_cb->dscp_info.version       =   version;
+#if (defined BTA_HH_LE_INCLUDED && BTA_HH_LE_INCLUDED == TRUE)
+    p_cb->dscp_info.flag          =   flag;
+#else
+    UNUSED(flag);
+#endif
+}
+/*******************************************************************************
+**
+** Function         bta_hh_add_device_to_list
+**
+** Description      Maintain a known device list for BTA HH.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hh_add_device_to_list(tBTA_HH_DEV_CB *p_cb, UINT8 handle,
+                               UINT16 attr_mask,
+                               tHID_DEV_DSCP_INFO *p_dscp_info,
+                               UINT8 sub_class,
+                               UINT16 ssr_max_latency,
+                               UINT16 ssr_min_tout,
+                               UINT8 app_id)
+{
+#if BTA_HH_DEBUG
+    APPL_TRACE_DEBUG("subclass = 0x%2x", sub_class);
+#endif
+
+    p_cb->hid_handle = handle;
+    p_cb->in_use = TRUE;
+    p_cb->attr_mask = attr_mask;
+
+    p_cb->sub_class = sub_class;
+    p_cb->app_id    = app_id;
+
+    p_cb->dscp_info.ssr_max_latency = ssr_max_latency;
+    p_cb->dscp_info.ssr_min_tout    = ssr_min_tout;
+
+    /* store report descriptor info */
+    if (p_dscp_info) {
+        osi_free_and_reset((void **)&p_cb->dscp_info.descriptor.dsc_list);
+
+        if (p_dscp_info->dl_len) {
+            p_cb->dscp_info.descriptor.dsc_list =
+              (UINT8 *)osi_malloc(p_dscp_info->dl_len);
+            p_cb->dscp_info.descriptor.dl_len = p_dscp_info->dl_len;
+            memcpy(p_cb->dscp_info.descriptor.dsc_list, p_dscp_info->dsc_list,
+                   p_dscp_info->dl_len);
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_tod_spt
+**
+** Description      Check to see if this type of device is supported
+**
+** Returns
+**
+*******************************************************************************/
+BOOLEAN bta_hh_tod_spt(tBTA_HH_DEV_CB *p_cb,UINT8 sub_class)
+{
+    UINT8    xx;
+    UINT8    cod = (sub_class >> 2); /* lower two bits are reserved */
+
+    for (xx = 0 ; xx < p_bta_hh_cfg->max_devt_spt; xx ++)
+    {
+        if (cod == (UINT8) p_bta_hh_cfg->p_devt_list[xx].tod)
+        {
+            p_cb->app_id = p_bta_hh_cfg->p_devt_list[xx].app_id;
+#if BTA_HH_DEBUG
+            APPL_TRACE_EVENT("bta_hh_tod_spt sub_class:0x%x supported", sub_class);
+#endif
+            return TRUE;
+        }
+    }
+#if BTA_HH_DEBUG
+            APPL_TRACE_EVENT("bta_hh_tod_spt sub_class:0x%x NOT supported", sub_class);
+#endif
+    return FALSE;
+}
+
+
+/*******************************************************************************
+**
+** Function         bta_hh_parse_keybd_rpt
+**
+** Description      This utility function parse a boot mode keyboard report.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hh_parse_keybd_rpt(tBTA_HH_BOOT_RPT *p_kb_data, UINT8 *p_report,
+                            UINT16 report_len)
+{
+    tBTA_HH_KB_CB       *p_kb = &bta_hh_cb.kb_cb;
+    tBTA_HH_KEYBD_RPT   *p_data = &p_kb_data->data_rpt.keybd_rpt;
+
+    UINT8        this_char, ctl_shift;
+    UINT16       xx, yy, key_idx = 0;
+    UINT8        this_report[BTA_HH_MAX_RPT_CHARS];
+
+#if BTA_HH_DEBUG
+    APPL_TRACE_DEBUG("bta_hh_parse_keybd_rpt:  (report=%p, report_len=%d) called",
+            p_report, report_len);
+#endif
+
+    if (report_len < 2)
+        return;
+
+    ctl_shift = *p_report++;
+    report_len--;
+
+    if (report_len > BTA_HH_MAX_RPT_CHARS)
+        report_len = BTA_HH_MAX_RPT_CHARS;
+
+    memset (this_report, 0, BTA_HH_MAX_RPT_CHARS);
+    memset (p_data, 0, sizeof(tBTA_HH_KEYBD_RPT));
+    memcpy (this_report, p_report, report_len);
+
+    /* Take care of shift, control, GUI and alt, modifier keys  */
+    for (xx = 0; xx < BTA_HH_MOD_MAX_KEY; xx ++ )
+    {
+        if (ctl_shift & bta_hh_mod_key_mask[xx])
+        {
+            APPL_TRACE_DEBUG("Mod Key[%02x] pressed", bta_hh_mod_key_mask[xx] );
+            p_kb->mod_key[xx] = TRUE;
+        }
+        else if (p_kb->mod_key[xx])
+        {
+            p_kb->mod_key[xx] = FALSE;
+        }
+        /* control key flag is set */
+        p_data->mod_key[xx]       = p_kb->mod_key[xx];
+    }
+
+    /***************************************************************************/
+    /*  First step is to remove all characters we saw in the last report       */
+    /***************************************************************************/
+    for (xx = 0; xx < report_len; xx++)
+    {
+        for (yy = 0; yy < BTA_HH_MAX_RPT_CHARS; yy++)
+        {
+            if (this_report[xx] == p_kb->last_report[yy])
+            {
+                this_report[xx] = 0;
+            }
+        }
+    }
+    /***************************************************************************/
+    /*  Now, process all the characters in the report, up to 6 keycodes        */
+    /***************************************************************************/
+    for (xx = 0; xx < report_len; xx++)
+    {
+#if BTA_HH_DEBUG
+        APPL_TRACE_DEBUG("this_char = %02x", this_report[xx]);
+#endif
+        if ((this_char = this_report[xx]) == 0)
+            continue;
+        /* take the key code as the report data */
+        if (this_report[xx] == BTA_HH_KB_CAPS_LOCK)
+            p_kb->caps_lock = p_kb->caps_lock ? FALSE : TRUE;
+        else if (this_report[xx] == BTA_HH_KB_NUM_LOCK)
+            p_kb->num_lock = p_kb->num_lock ? FALSE : TRUE;
+        else
+            p_data->this_char[key_idx ++] = this_char;
+
+#if BTA_HH_DEBUG
+        APPL_TRACE_DEBUG("found keycode %02x ",  this_report[xx]);
+#endif
+        p_data->caps_lock   = p_kb->caps_lock;
+        p_data->num_lock      = p_kb->num_lock;
+    }
+
+    memset (p_kb->last_report, 0, BTA_HH_MAX_RPT_CHARS);
+    memcpy (p_kb->last_report, p_report, report_len);
+
+    return;
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_parse_mice_rpt
+**
+** Description      This utility function parse a boot mode mouse report.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hh_parse_mice_rpt(tBTA_HH_BOOT_RPT *p_mice_data, UINT8 *p_report,
+                           UINT16 report_len)
+{
+    tBTA_HH_MICE_RPT   *p_data = &p_mice_data->data_rpt.mice_rpt;
+#if BTA_HH_DEBUG
+    UINT8       xx;
+
+    APPL_TRACE_DEBUG("bta_hh_parse_mice_rpt:  bta_keybd_rpt_rcvd(report=%p, \
+                report_len=%d) called", p_report, report_len);
+#endif
+
+    if (report_len < 3)
+        return;
+
+    if (report_len > BTA_HH_MAX_RPT_CHARS)
+        report_len = BTA_HH_MAX_RPT_CHARS;
+
+#if BTA_HH_DEBUG
+    for (xx = 0; xx < report_len; xx++)
+    {
+        APPL_TRACE_DEBUG("this_char = %02x", p_report[xx]);
+    }
+#endif
+
+    /* only first bytes lower 3 bits valid */
+    p_data->mouse_button     = (p_report[0] & 0x07);
+
+    /* x displacement */
+    p_data->delta_x     = p_report[1];
+
+    /* y displacement */
+    p_data->delta_y     = p_report[2];
+
+#if BTA_HH_DEBUG
+    APPL_TRACE_DEBUG("mice button: 0x%2x", p_data->mouse_button);
+    APPL_TRACE_DEBUG("mice move: x = %d y = %d", p_data->delta_x,
+                        p_data->delta_y );
+#endif
+
+    return;
+
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_read_ssr_param
+**
+** Description      Read the SSR Parameter for the remote device
+**
+** Returns          tBTA_HH_STATUS  operation status
+**
+*******************************************************************************/
+tBTA_HH_STATUS bta_hh_read_ssr_param(BD_ADDR bd_addr, UINT16 *p_max_ssr_lat, UINT16 *p_min_ssr_tout)
+{
+    tBTA_HH_STATUS  status = BTA_HH_ERR;
+    tBTA_HH_CB  *p_cb = &bta_hh_cb;
+    UINT8       i;
+    UINT16      ssr_max_latency;
+    for (i = 0; i < BTA_HH_MAX_KNOWN; i ++)
+    {
+        if (memcmp(p_cb->kdev[i].addr, bd_addr, BD_ADDR_LEN) == 0)
+        {
+
+            /* if remote device does not have HIDSSRHostMaxLatency attribute in SDP,
+            set SSR max latency default value here.  */
+            if (p_cb->kdev[i].dscp_info.ssr_max_latency == HID_SSR_PARAM_INVALID)
+            {
+                /* The default is calculated as half of link supervision timeout.*/
+
+                BTM_GetLinkSuperTout(p_cb->kdev[i].addr, &ssr_max_latency) ;
+                ssr_max_latency = BTA_HH_GET_DEF_SSR_MAX_LAT(ssr_max_latency);
+
+                /* per 1.1 spec, if the newly calculated max latency is greater than
+                BTA_HH_SSR_MAX_LATENCY_DEF which is 500ms, use BTA_HH_SSR_MAX_LATENCY_DEF */
+                if (ssr_max_latency > BTA_HH_SSR_MAX_LATENCY_DEF)
+                    ssr_max_latency = BTA_HH_SSR_MAX_LATENCY_DEF;
+
+                * p_max_ssr_lat  = ssr_max_latency;
+            }
+            else
+                * p_max_ssr_lat  = p_cb->kdev[i].dscp_info.ssr_max_latency;
+
+            if (p_cb->kdev[i].dscp_info.ssr_min_tout == HID_SSR_PARAM_INVALID)
+                * p_min_ssr_tout = BTA_HH_SSR_MIN_TOUT_DEF;
+            else
+                * p_min_ssr_tout = p_cb->kdev[i].dscp_info.ssr_min_tout;
+
+            status           = BTA_HH_OK;
+
+            break;
+        }
+    }
+
+    return status;
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_cleanup_disable
+**
+** Description      when disable finished, cleanup control block and send callback
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hh_cleanup_disable(tBTA_HH_STATUS status)
+{
+    UINT8   xx;
+    /* free buffer in CB holding report descriptors */
+    for (xx = 0; xx < BTA_HH_MAX_DEVICE; xx ++) {
+        osi_free_and_reset((void **)&bta_hh_cb.kdev[xx].dscp_info.descriptor.dsc_list);
+    }
+    osi_free_and_reset((void **)&bta_hh_cb.p_disc_db);
+
+    (* bta_hh_cb.p_cback)(BTA_HH_DISABLE_EVT, (tBTA_HH *)&status);
+    /* all connections are down, no waiting for diconnect */
+    memset(&bta_hh_cb, 0, sizeof(tBTA_HH_CB));
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_dev_handle_to_cb_idx
+**
+** Description      convert a HID device handle to the device control block index.
+**
+**
+** Returns          UINT8: index of the device control block.
+**
+*******************************************************************************/
+UINT8 bta_hh_dev_handle_to_cb_idx(UINT8 dev_handle)
+{
+    UINT8 index = BTA_HH_IDX_INVALID;
+
+#if BTA_HH_LE_INCLUDED == TRUE
+    if (BTA_HH_IS_LE_DEV_HDL(dev_handle))
+    {
+        if (BTA_HH_IS_LE_DEV_HDL_VALID(dev_handle))
+            index = bta_hh_cb.le_cb_index[BTA_HH_GET_LE_CB_IDX(dev_handle)];
+#if BTA_HH_DEBUG == TRUE
+        APPL_TRACE_DEBUG("bta_hh_dev_handle_to_cb_idx dev_handle = %d index = %d", dev_handle, index);
+#endif
+    }
+    else
+#endif
+        /* regular HID device checking */
+        if (dev_handle < BTA_HH_MAX_KNOWN )
+        index = bta_hh_cb.cb_index[dev_handle];
+
+    return index;
+
+}
+#if BTA_HH_DEBUG
+/*******************************************************************************
+**
+** Function         bta_hh_trace_dev_db
+**
+** Description      Check to see if this type of device is supported
+**
+** Returns
+**
+*******************************************************************************/
+void bta_hh_trace_dev_db(void)
+{
+    UINT8    xx;
+
+    APPL_TRACE_DEBUG("bta_hh_trace_dev_db:: Device DB list********************");
+
+    for (xx = 0; xx < BTA_HH_MAX_DEVICE; xx++)
+    {
+        APPL_TRACE_DEBUG("kdev[%d] in_use[%d]  handle[%d] ",xx,
+            bta_hh_cb.kdev[xx].in_use, bta_hh_cb.kdev[xx].hid_handle);
+
+        APPL_TRACE_DEBUG("\t\t\t attr_mask[%04x] state [%d] sub_class[%02x] index = %d",
+            bta_hh_cb.kdev[xx].attr_mask, bta_hh_cb.kdev[xx].state,
+            bta_hh_cb.kdev[xx].sub_class, bta_hh_cb.kdev[xx].index);
+    }
+    APPL_TRACE_DEBUG("*********************************************************");
+}
+#endif
+#endif /* HL_INCLUDED */
diff --git a/rtkbt/code/bt/bta/hl/bta_hl_act.c b/rtkbt/code/bt/bta/hl/bta_hl_act.c
new file mode 100755
index 0000000..fe7fc2c
--- /dev/null
+++ b/rtkbt/code/bt/bta/hl/bta_hl_act.c
@@ -0,0 +1,2802 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains the HeaLth device profile (HL) action functions for
+ *  the state machine.
+ *
+ ******************************************************************************/
+
+#include <string.h>
+
+#include "bt_target.h"
+#if defined(HL_INCLUDED) && (HL_INCLUDED == TRUE)
+
+#include "bt_common.h"
+#include "sdp_api.h"
+#include "bta_sys.h"
+#include "port_api.h"
+#include "sdp_api.h"
+#include "bta_hl_api.h"
+#include "bta_hl_int.h"
+#include "utl.h"
+#include "mca_defs.h"
+#include "mca_api.h"
+
+/*****************************************************************************
+**  Local Function prototypes
+*****************************************************************************/
+#if (BTA_HL_DEBUG == TRUE && BT_TRACE_VERBOSE == TRUE)
+static char *bta_hl_mcap_evt_code(UINT8 evt_code);
+static char *bta_hl_dch_oper_code(tBTA_HL_DCH_OPER oper_code);
+static char *bta_hl_cback_evt_code(UINT8 evt_code);
+#endif
+static void bta_hl_sdp_cback(UINT8 sdp_op, UINT8 app_idx, UINT8 mcl_idx,
+                             UINT8 mdl_idx, UINT16 status);
+static void bta_hl_sdp_cback0(UINT16 status);
+static void bta_hl_sdp_cback1(UINT16 status);
+static void bta_hl_sdp_cback2(UINT16 status);
+static void bta_hl_sdp_cback3(UINT16 status);
+static void bta_hl_sdp_cback4(UINT16 status);
+static void bta_hl_sdp_cback5(UINT16 status);
+static void bta_hl_sdp_cback6(UINT16 status);
+
+
+static tSDP_DISC_CMPL_CB * const bta_hl_sdp_cback_arr[] =
+{
+    bta_hl_sdp_cback0,
+    bta_hl_sdp_cback1,
+    bta_hl_sdp_cback2,
+    bta_hl_sdp_cback3,
+    bta_hl_sdp_cback4,
+    bta_hl_sdp_cback5,
+    bta_hl_sdp_cback6
+};
+
+
+
+/*******************************************************************************
+**
+** Function         bta_hl_dch_mca_cong_change
+**
+** Description      Action routine for processing congestion change notification
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hl_dch_mca_cong_change(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx,
+                                tBTA_HL_DATA *p_data)
+{
+    tBTA_HL_APP_CB      *p_acb  = BTA_HL_GET_APP_CB_PTR(app_idx);
+    tBTA_HL_MCL_CB      *p_mcb  = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+    tBTA_HL_MDL_CB      *p_dcb  = BTA_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx);
+    tMCA_CONG_CHG       *p_cong_chg = &p_data->mca_evt.mca_data.cong_chg;
+    tBTA_HL             evt_data;
+
+#if (BTA_HL_DEBUG == TRUE)
+    APPL_TRACE_DEBUG("bta_hl_dch_mca_cong_change mdl_id=%d cong=%d",
+                      p_cong_chg->mdl_id,
+                      p_cong_chg->cong);
+#endif
+    evt_data.dch_cong_ind.cong          =
+    p_dcb->cong                         = p_cong_chg->cong;
+    evt_data.dch_cong_ind.mdl_handle    = p_dcb->mdl_handle;
+    evt_data.dch_cong_ind.mcl_handle    = p_mcb->mcl_handle;
+    evt_data.dch_cong_ind.app_handle    = p_acb->app_handle;
+
+    p_acb->p_cback(BTA_HL_CONG_CHG_IND_EVT ,(tBTA_HL *) &evt_data );
+}
+
+
+
+/*******************************************************************************
+**
+** Function         bta_hl_dch_echo_test
+**
+** Description      Action routine for processing echo test request
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hl_dch_echo_test(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx,
+                          tBTA_HL_DATA *p_data)
+{
+    tBTA_HL_APP_CB      *p_acb  = BTA_HL_GET_APP_CB_PTR(app_idx);
+    tBTA_HL_MCL_CB      *p_mcb  = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+    tBTA_HL_MDL_CB      *p_dcb  = BTA_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx);
+    UNUSED(p_data);
+
+#if (BTA_HL_DEBUG == TRUE)
+    APPL_TRACE_DEBUG("bta_hl_dch_echo_test");
+#endif
+
+    p_dcb->echo_oper = BTA_HL_ECHO_OP_CI_GET_ECHO_DATA;
+    p_dcb->cout_oper |= BTA_HL_CO_GET_ECHO_DATA_MASK;
+
+    bta_hl_co_get_echo_data(p_acb->app_id, p_mcb->mcl_handle,
+                            p_dcb->p_echo_tx_pkt->len,
+                            BTA_HL_GET_BUF_PTR(p_dcb->p_echo_tx_pkt),
+                            BTA_HL_CI_GET_ECHO_DATA_EVT);
+
+}
+/*******************************************************************************
+**
+** Function         bta_hl_dch_sdp_init
+**
+** Description      Action routine for processing DCH SDP initiation
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hl_dch_sdp_init(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx,
+                         tBTA_HL_DATA *p_data)
+{
+    tBTA_HL_MCL_CB      *p_mcb  = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+    tBTA_HL_MDL_CB      *p_dcb  = BTA_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx);
+
+#if (BTA_HL_DEBUG == TRUE)
+    APPL_TRACE_DEBUG("bta_hl_dch_sdp_init");
+#endif
+    if ( p_mcb->sdp_oper == BTA_HL_SDP_OP_NONE)
+    {
+        p_mcb->sdp_mdl_idx = mdl_idx;
+        if (p_dcb->dch_oper == BTA_HL_DCH_OP_LOCAL_OPEN )
+        {
+            p_mcb->sdp_oper = BTA_HL_SDP_OP_DCH_OPEN_INIT;
+
+        }
+        else
+        {
+            p_mcb->sdp_oper = BTA_HL_SDP_OP_DCH_RECONNECT_INIT;
+        }
+
+        if (bta_hl_init_sdp(p_mcb->sdp_oper, app_idx, mcl_idx, mdl_idx) != BTA_HL_STATUS_OK)
+        {
+            APPL_TRACE_ERROR("SDP INIT failed");
+            p_mcb->sdp_oper = BTA_HL_SDP_OP_NONE;
+            bta_hl_dch_sm_execute(app_idx, mcl_idx, mdl_idx, BTA_HL_DCH_SDP_FAIL_EVT, p_data);
+        }
+    }
+    else
+    {
+        APPL_TRACE_ERROR("SDP in use");
+        bta_hl_dch_sm_execute(app_idx, mcl_idx, mdl_idx, BTA_HL_DCH_SDP_FAIL_EVT, p_data);
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         bta_hl_dch_close_echo_test
+**
+** Description      Action routine for processing the closing of echo test
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hl_dch_close_echo_test(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx,
+                                tBTA_HL_DATA *p_data)
+{
+    tBTA_HL_MDL_CB          *p_dcb  = BTA_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx);
+
+#if (BTA_HL_DEBUG == TRUE)
+    APPL_TRACE_DEBUG("bta_hl_dch_close_echo_test");
+#endif
+
+    switch (p_dcb->echo_oper)
+    {
+        case BTA_HL_ECHO_OP_DCH_CLOSE_CFM:
+        case BTA_HL_ECHO_OP_OPEN_IND:
+        case BTA_HL_ECHO_OP_ECHO_PKT:
+            p_dcb->dch_oper = BTA_HL_DCH_OP_LOCAL_CLOSE_ECHO_TEST;
+            break;
+        case BTA_HL_ECHO_OP_MDL_CREATE_CFM:
+        case BTA_HL_ECHO_OP_DCH_OPEN_CFM:
+        case BTA_HL_ECHO_OP_LOOP_BACK:
+        default:
+            break;
+    }
+
+    if (MCA_CloseReq((tMCA_DL) p_dcb->mdl_handle)!= MCA_SUCCESS)
+    {
+        bta_hl_dch_sm_execute(app_idx, mcl_idx, mdl_idx, BTA_HL_DCH_CLOSE_CMPL_EVT, p_data);
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         bta_hl_dch_mca_rcv_data
+**
+** Description      Action routine for processing the received data
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hl_dch_mca_rcv_data(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx,
+                             tBTA_HL_DATA *p_data)
+{
+    tBTA_HL_APP_CB      *p_acb  = BTA_HL_GET_APP_CB_PTR(app_idx);
+    tBTA_HL_MCL_CB      *p_mcb  = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+    tBTA_HL_MDL_CB      *p_dcb  = BTA_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx);
+
+#if (BTA_HL_DEBUG == TRUE)
+    APPL_TRACE_DEBUG("bta_hl_dch_mca_rcv_data");
+#endif
+
+    if (p_dcb->local_mdep_id == BTA_HL_ECHO_TEST_MDEP_ID)
+    {
+        switch ( p_dcb->echo_oper)
+        {
+            case  BTA_HL_ECHO_OP_ECHO_PKT:
+
+                if (MCA_WriteReq((tMCA_DL) p_dcb->mdl_handle, p_data->mca_rcv_data_evt.p_pkt) != MCA_SUCCESS)
+                {
+                    osi_free_and_reset((void **)&p_data->mca_rcv_data_evt.p_pkt);
+                    bta_hl_dch_sm_execute(app_idx, mcl_idx, mdl_idx, BTA_HL_DCH_CLOSE_ECHO_TEST_EVT, p_data);
+                }
+                break;
+            case BTA_HL_ECHO_OP_LOOP_BACK:
+
+                p_dcb->p_echo_rx_pkt = p_data->mca_rcv_data_evt.p_pkt;
+                p_dcb->echo_oper = BTA_HL_ECHO_OP_CI_PUT_ECHO_DATA;
+                p_dcb->cout_oper |= BTA_HL_CO_PUT_ECHO_DATA_MASK;
+                p_dcb->ci_put_echo_data_status = BTA_HL_STATUS_FAIL;
+
+                bta_hl_co_put_echo_data(p_acb->app_id, p_mcb->mcl_handle,
+                                        p_dcb->p_echo_rx_pkt->len,
+                                        BTA_HL_GET_BUF_PTR(p_dcb->p_echo_rx_pkt),
+                                        BTA_HL_CI_PUT_ECHO_DATA_EVT);
+                break;
+            default:
+                APPL_TRACE_ERROR("Unknonw echo_oper=%d",p_dcb->echo_oper);
+                break;
+        }
+
+    }
+    else
+    {
+        p_dcb->cout_oper |= BTA_HL_CO_PUT_RX_DATA_MASK;
+        p_dcb->p_rx_pkt = p_data->mca_rcv_data_evt.p_pkt;
+
+        bta_hl_co_put_rx_data(p_acb->app_id, p_dcb->mdl_handle,
+                              p_dcb->p_rx_pkt->len,
+                              BTA_HL_GET_BUF_PTR(p_dcb->p_rx_pkt),
+                              BTA_HL_CI_PUT_RX_DATA_EVT);
+
+
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         bta_hl_dch_ci_put_echo_data
+**
+** Description      Action routine for processing the call-in of the
+**                  put echo data event
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hl_dch_ci_put_echo_data(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx,
+                                 tBTA_HL_DATA *p_data)
+{
+    tBTA_HL_MDL_CB      *p_dcb  = BTA_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx);
+
+#if (BTA_HL_DEBUG == TRUE)
+    APPL_TRACE_DEBUG("bta_hl_dch_ci_put_echo_data");
+#endif
+
+    p_dcb->cout_oper &= ~BTA_HL_CO_PUT_ECHO_DATA_MASK;
+    osi_free_and_reset((void **)&p_dcb->p_echo_rx_pkt);
+    p_dcb->ci_put_echo_data_status = p_data->ci_get_put_echo_data.status;
+
+    p_dcb->echo_oper = BTA_HL_ECHO_OP_DCH_CLOSE_CFM;
+    bta_hl_dch_sm_execute(app_idx, mcl_idx, mdl_idx, BTA_HL_DCH_CLOSE_ECHO_TEST_EVT, p_data);
+}
+
+
+
+/*******************************************************************************
+**
+** Function         bta_hl_dch_ci_get_echo_data
+**
+** Description      Action routine for processing the call-in of the
+**                  get echo data event
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hl_dch_ci_get_echo_data(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx,
+                                 tBTA_HL_DATA *p_data)
+{
+    tBTA_HL_MDL_CB      *p_dcb  = BTA_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx);
+    tBTA_HL_STATUS      status;
+
+#if (BTA_HL_DEBUG == TRUE)
+    APPL_TRACE_DEBUG("bta_hl_dch_ci_get_echo_data");
+#endif
+
+    p_dcb->cout_oper &= ~BTA_HL_CO_GET_ECHO_DATA_MASK;
+
+    if (!p_dcb->abort_oper)
+    {
+        status = p_data->ci_get_put_echo_data.status;
+        if (status == BTA_HL_STATUS_OK)
+        {
+            p_dcb->echo_oper = BTA_HL_ECHO_OP_MDL_CREATE_CFM;
+            bta_hl_dch_sm_execute(app_idx, mcl_idx, mdl_idx, BTA_HL_DCH_OPEN_EVT, p_data);
+        }
+        else
+        {
+            bta_hl_dch_sm_execute(app_idx, mcl_idx, mdl_idx, BTA_HL_DCH_CLOSE_CMPL_EVT, p_data);
+        }
+    }
+    else
+    {
+        bta_hl_dch_sm_execute(app_idx, mcl_idx, mdl_idx, BTA_HL_DCH_CLOSE_CMPL_EVT, p_data);
+    }
+
+}
+
+/*******************************************************************************
+**
+** Function         bta_hl_dch_ci_put_rx_data
+**
+** Description      Action routine for processing the call-in of the
+**                  put rx data event
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hl_dch_ci_put_rx_data(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx,
+                               tBTA_HL_DATA *p_data)
+{
+    tBTA_HL_APP_CB      *p_acb  = BTA_HL_GET_APP_CB_PTR(app_idx);
+    tBTA_HL_MCL_CB      *p_mcb  = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+    tBTA_HL_MDL_CB      *p_dcb  = BTA_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx);
+    tBTA_HL             evt_data;
+
+#if (BTA_HL_DEBUG == TRUE)
+    APPL_TRACE_DEBUG("bta_hl_dch_ci_put_rx_data");
+#endif
+
+    p_dcb->cout_oper &= ~BTA_HL_CO_PUT_RX_DATA_MASK;
+    osi_free_and_reset((void **)&p_dcb->p_rx_pkt);
+    bta_hl_build_rcv_data_ind(&evt_data,
+                              p_acb->app_handle,
+                              p_mcb->mcl_handle,
+                              p_dcb->mdl_handle);
+    p_acb->p_cback(BTA_HL_DCH_RCV_DATA_IND_EVT,(tBTA_HL *) &evt_data );
+    if (p_dcb->close_pending)
+    {
+        if (!p_dcb->cout_oper)
+        {
+            bta_hl_dch_sm_execute(app_idx, mcl_idx, mdl_idx, BTA_HL_DCH_CLOSE_EVT, p_data);
+        }
+
+    }
+}
+
+
+
+/*******************************************************************************
+**
+** Function         bta_hl_dch_ci_get_tx_data
+**
+** Description      Action routine for processing the call-in of the
+**                  get tx data event
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hl_dch_ci_get_tx_data(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx,
+                               tBTA_HL_DATA *p_data)
+{
+    tBTA_HL_APP_CB      *p_acb  = BTA_HL_GET_APP_CB_PTR(app_idx);
+    tBTA_HL_MCL_CB      *p_mcb  = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+    tBTA_HL_MDL_CB      *p_dcb  = BTA_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx);
+    tMCA_RESULT         result;
+    tBTA_HL_STATUS      status = BTA_HL_STATUS_OK;
+    BOOLEAN             free_buf = FALSE;
+    BOOLEAN             close_dch = FALSE;
+    tBTA_HL             evt_data;
+
+
+#if (BTA_HL_DEBUG == TRUE)
+    APPL_TRACE_DEBUG("bta_hl_dch_ci_get_tx_data");
+#endif
+
+    p_dcb->cout_oper &= ~BTA_HL_CO_GET_TX_DATA_MASK;
+
+    if (p_dcb->close_pending)
+    {
+        status = BTA_HL_STATUS_FAIL;
+        free_buf = TRUE;
+
+        if (!p_dcb->cout_oper)
+        {
+            close_dch = TRUE;
+        }
+    }
+    else
+    {
+        if ((result = MCA_WriteReq((tMCA_DL) p_dcb->mdl_handle, p_dcb->p_tx_pkt)) != MCA_SUCCESS)
+        {
+            if (result == MCA_BUSY)
+            {
+                status = BTA_HL_STATUS_DCH_BUSY;
+            }
+            else
+            {
+                status = BTA_HL_STATUS_FAIL;
+            }
+            free_buf = TRUE;
+        }
+        else
+        {
+            p_dcb->p_tx_pkt = NULL;
+        }
+    }
+
+    if (free_buf)
+        osi_free_and_reset((void **)&p_dcb->p_tx_pkt);
+
+    bta_hl_build_send_data_cfm(&evt_data,
+                               p_acb->app_handle,
+                               p_mcb->mcl_handle,
+                               p_dcb->mdl_handle,
+                               status);
+    p_acb->p_cback(BTA_HL_DCH_SEND_DATA_CFM_EVT,(tBTA_HL *) &evt_data );
+
+    if (close_dch)
+    {
+        bta_hl_dch_sm_execute(app_idx, mcl_idx, mdl_idx, BTA_HL_DCH_CLOSE_EVT, p_data);
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         bta_hl_dch_send_data
+**
+** Description      Action routine for processing api send data request
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hl_dch_send_data(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx,
+                          tBTA_HL_DATA *p_data)
+{
+    tBTA_HL_APP_CB      *p_acb  = BTA_HL_GET_APP_CB_PTR(app_idx);
+    tBTA_HL_MCL_CB      *p_mcb  = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+    tBTA_HL_MDL_CB      *p_dcb  = BTA_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx);
+    tBTA_HL             evt_data;
+    BOOLEAN             success = TRUE;
+
+#if (BTA_HL_DEBUG == TRUE)
+    APPL_TRACE_DEBUG("bta_hl_dch_send_data");
+#endif
+
+    if (!(p_dcb->cout_oper & BTA_HL_CO_GET_TX_DATA_MASK))
+    {
+        // p_dcb->chnl_cfg.fcs may be BTA_HL_MCA_USE_FCS (0x11) or BTA_HL_MCA_NO_FCS (0x10) or BTA_HL_DEFAULT_SOURCE_FCS (1)
+        BOOLEAN fcs_use = (BOOLEAN) (p_dcb->chnl_cfg.fcs & BTA_HL_MCA_FCS_USE_MASK);
+        if ((p_dcb->p_tx_pkt = bta_hl_get_buf(p_data->api_send_data.pkt_size, fcs_use)) != NULL)
+        {
+            bta_hl_co_get_tx_data( p_acb->app_id,
+                                   p_dcb->mdl_handle,
+                                   p_data->api_send_data.pkt_size,
+                                   BTA_HL_GET_BUF_PTR(p_dcb->p_tx_pkt),
+                                   BTA_HL_CI_GET_TX_DATA_EVT);
+            p_dcb->cout_oper |= BTA_HL_CO_GET_TX_DATA_MASK;
+        }
+        else
+        {
+            success = FALSE;
+        }
+    }
+    else
+    {
+        success = FALSE;
+    }
+
+    if (!success)
+    {
+        bta_hl_build_send_data_cfm(&evt_data,
+                                   p_acb->app_handle,
+                                   p_mcb->mcl_handle,
+                                   p_dcb->mdl_handle,
+                                   BTA_HL_STATUS_FAIL);
+        p_acb->p_cback(BTA_HL_DCH_SEND_DATA_CFM_EVT,(tBTA_HL *) &evt_data );
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_hl_dch_close_cmpl
+**
+** Description      Action routine for processing the close complete event
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hl_dch_close_cmpl(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx,
+                           tBTA_HL_DATA *p_data)
+{
+    tBTA_HL_APP_CB      *p_acb  = BTA_HL_GET_APP_CB_PTR(app_idx);
+    tBTA_HL_MCL_CB      *p_mcb  = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+    tBTA_HL_MDL_CB      *p_dcb  = BTA_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx);
+    tBTA_HL             evt_data;
+    tBTA_HL_EVT         event = 0;
+    BOOLEAN             send_evt=TRUE;
+    tBTA_HL_STATUS      status;
+
+#if (BTA_HL_DEBUG == TRUE)
+#if (BT_TRACE_VERBOSE == TRUE)
+    APPL_TRACE_DEBUG("bta_hl_dch_close_cmpl dch oper=%s", bta_hl_dch_oper_code(p_dcb->dch_oper));
+#else
+    APPL_TRACE_DEBUG("bta_hl_dch_close_cmpl dch oper=%d", p_dcb->dch_oper);
+#endif
+#endif
+
+    switch (p_dcb->dch_oper)
+    {
+        case BTA_HL_DCH_OP_LOCAL_OPEN:
+        case BTA_HL_DCH_OP_LOCAL_RECONNECT:
+
+            if (p_dcb->abort_oper & BTA_HL_ABORT_LOCAL_MASK)
+            {
+                bta_hl_build_abort_cfm(&evt_data,
+                                       p_acb->app_handle,
+                                       p_mcb->mcl_handle,
+                                       BTA_HL_STATUS_OK);
+                event = BTA_HL_DCH_ABORT_CFM_EVT;
+            }
+            else if (p_dcb->abort_oper & BTA_HL_ABORT_REMOTE_MASK )
+            {
+                bta_hl_build_abort_ind(&evt_data,
+                                       p_acb->app_handle,
+                                       p_mcb->mcl_handle);
+                event = BTA_HL_DCH_ABORT_IND_EVT;
+            }
+            else
+            {
+                bta_hl_build_dch_open_cfm(&evt_data,
+                                          p_acb->app_handle,
+                                          p_mcb->mcl_handle,
+                                          BTA_HL_INVALID_MDL_HANDLE,
+                                          0,0,0,0,0, BTA_HL_STATUS_FAIL);
+                event = BTA_HL_DCH_OPEN_CFM_EVT;
+                if (p_dcb->dch_oper == BTA_HL_DCH_OP_LOCAL_RECONNECT)
+                {
+                    event = BTA_HL_DCH_RECONNECT_CFM_EVT;
+                }
+            }
+            break;
+
+        case BTA_HL_DCH_OP_LOCAL_CLOSE:
+        case BTA_HL_DCH_OP_REMOTE_DELETE:
+        case BTA_HL_DCH_OP_LOCAL_CLOSE_RECONNECT:
+        case BTA_HL_DCH_OP_NONE:
+
+            bta_hl_build_dch_close_cfm(&evt_data,
+                                       p_acb->app_handle,
+                                       p_mcb->mcl_handle,
+                                       p_dcb->mdl_handle,
+                                       BTA_HL_STATUS_OK);
+            event = BTA_HL_DCH_CLOSE_CFM_EVT;
+            break;
+
+        case BTA_HL_DCH_OP_REMOTE_CLOSE:
+            bta_hl_build_dch_close_ind(&evt_data,
+                                       p_acb->app_handle,
+                                       p_mcb->mcl_handle,
+                                       p_dcb->mdl_handle,
+                                       p_dcb->intentional_close);
+            event = BTA_HL_DCH_CLOSE_IND_EVT;
+            break;
+
+        case BTA_HL_DCH_OP_REMOTE_OPEN:
+
+            if (p_dcb->abort_oper & BTA_HL_ABORT_LOCAL_MASK)
+            {
+                bta_hl_build_abort_cfm(&evt_data,
+                                       p_acb->app_handle,
+                                       p_mcb->mcl_handle,
+                                       BTA_HL_STATUS_OK);
+                event = BTA_HL_DCH_ABORT_CFM_EVT;
+            }
+            else if (p_dcb->abort_oper & BTA_HL_ABORT_REMOTE_MASK )
+            {
+                bta_hl_build_abort_ind(&evt_data,
+                                       p_acb->app_handle,
+                                       p_mcb->mcl_handle);
+                event = BTA_HL_DCH_ABORT_IND_EVT;
+            }
+            else
+            {
+                bta_hl_build_dch_close_ind(&evt_data,
+                                           p_acb->app_handle,
+                                           p_mcb->mcl_handle,
+                                           p_dcb->mdl_handle,
+                                           p_dcb->intentional_close);
+                event = BTA_HL_DCH_CLOSE_IND_EVT;
+            }
+            break;
+
+        case BTA_HL_DCH_OP_LOCAL_CLOSE_ECHO_TEST:
+            /* this is normal echo test close */
+        case BTA_HL_DCH_OP_REMOTE_CREATE:
+        case BTA_HL_DCH_OP_REMOTE_RECONNECT:
+            send_evt=FALSE;
+            break;
+
+        default:
+#if (BTA_HL_DEBUG == TRUE)
+#if (BT_TRACE_VERBOSE == TRUE)
+            APPL_TRACE_ERROR("DCH operation not found oper=%s", bta_hl_dch_oper_code(p_dcb->dch_oper));
+#else
+            APPL_TRACE_ERROR("DCH operation not found oper=%d", p_dcb->dch_oper);
+#endif
+#endif
+            send_evt=FALSE;
+            break;
+    }
+
+    if ( p_dcb->local_mdep_id == BTA_HL_ECHO_TEST_MDEP_ID )
+    {
+        p_mcb->echo_test = FALSE;
+        send_evt=FALSE;
+
+        if ( p_dcb->dch_oper != BTA_HL_DCH_OP_LOCAL_CLOSE_ECHO_TEST)
+        {
+            switch (p_dcb->echo_oper)
+            {
+                case BTA_HL_ECHO_OP_CI_GET_ECHO_DATA:
+                case BTA_HL_ECHO_OP_SDP_INIT:
+                case BTA_HL_ECHO_OP_MDL_CREATE_CFM:
+                case BTA_HL_ECHO_OP_DCH_OPEN_CFM:
+                case BTA_HL_ECHO_OP_LOOP_BACK:
+
+                    status = BTA_HL_STATUS_FAIL;
+                    send_evt = TRUE;
+                    break;
+                case BTA_HL_ECHO_OP_OPEN_IND:
+                case BTA_HL_ECHO_OP_ECHO_PKT:
+                    break;
+                default:
+                    APPL_TRACE_ERROR("Invalid echo_oper=%d", p_dcb->echo_oper);
+                    break;
+            }
+        }
+        else
+        {
+            status = p_dcb->ci_put_echo_data_status;
+            send_evt = TRUE;
+        }
+
+        if (send_evt)
+        {
+            bta_hl_build_echo_test_cfm(&evt_data,
+                                       p_acb->app_handle,
+                                       p_mcb->mcl_handle,
+                                       status);
+            event = BTA_HL_DCH_ECHO_TEST_CFM_EVT;
+        }
+    }
+
+    bta_hl_clean_mdl_cb(app_idx, mcl_idx, mdl_idx);
+
+    if (send_evt)
+    {
+        if (p_acb->p_cback)
+        {
+#if (BTA_HL_DEBUG == TRUE)
+#if (BT_TRACE_VERBOSE == TRUE)
+            APPL_TRACE_DEBUG("Send Event: %s",  bta_hl_cback_evt_code(event));
+#else
+            APPL_TRACE_DEBUG("Send Event: 0x%02x", event);
+#endif
+#endif
+            p_acb->p_cback(event,(tBTA_HL *) &evt_data );
+        }
+    }
+    /* check cch close is in progress or not */
+    bta_hl_check_cch_close(app_idx, mcl_idx, p_data, FALSE);
+}
+/*******************************************************************************
+**
+** Function         bta_hl_dch_mca_close_ind
+**
+** Description      Action routine for processing the close indication
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hl_dch_mca_close_ind(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx,
+                              tBTA_HL_DATA *p_data)
+{
+    tBTA_HL_MDL_CB      *p_dcb  = BTA_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx);
+
+#if (BTA_HL_DEBUG == TRUE)
+#if (BT_TRACE_VERBOSE == TRUE)
+    APPL_TRACE_DEBUG("bta_hl_dch_mca_close_ind dch oper=%s", bta_hl_dch_oper_code(p_dcb->dch_oper));
+#else
+    APPL_TRACE_DEBUG("bta_hl_dch_mca_close_ind dch oper=%d", p_dcb->dch_oper);
+#endif
+#endif
+
+    p_dcb->intentional_close = FALSE;
+    if (p_data->mca_evt.mca_data.close_ind.reason == L2CAP_DISC_OK)
+    {
+        p_dcb->intentional_close = TRUE;
+    }
+
+    if (!p_dcb->cout_oper)
+    {
+        if ((p_dcb->dch_oper != BTA_HL_DCH_OP_REMOTE_OPEN) &&
+            (p_dcb->dch_oper != BTA_HL_DCH_OP_REMOTE_RECONNECT))
+        {
+            p_dcb->dch_oper = BTA_HL_DCH_OP_REMOTE_CLOSE;
+        }
+        bta_hl_dch_sm_execute(app_idx, mcl_idx, mdl_idx, BTA_HL_DCH_CLOSE_CMPL_EVT, p_data);
+    }
+    else
+    {
+        p_dcb->close_pending = TRUE;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_hl_dch_mca_close_cfm
+**
+** Description      Action routine for processing the close confirmation
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hl_dch_mca_close_cfm(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx,
+                              tBTA_HL_DATA *p_data)
+{
+    tBTA_HL_MDL_CB      *p_dcb  = BTA_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx);
+
+
+#if (BTA_HL_DEBUG == TRUE)
+#if (BT_TRACE_VERBOSE == TRUE)
+    APPL_TRACE_DEBUG("bta_hl_dch_mca_close_cfm dch_oper=%s", bta_hl_dch_oper_code(p_dcb->dch_oper) );
+#else
+    APPL_TRACE_DEBUG("bta_hl_dch_mca_close_cfm dch_oper=%d", p_dcb->dch_oper);
+#endif
+#endif
+
+    switch (p_dcb->dch_oper)
+    {
+        case BTA_HL_DCH_OP_LOCAL_CLOSE:
+        case BTA_HL_DCH_OP_LOCAL_OPEN:
+        case BTA_HL_DCH_OP_LOCAL_RECONNECT:
+        case BTA_HL_DCH_OP_LOCAL_CLOSE_ECHO_TEST:
+        case BTA_HL_DCH_OP_REMOTE_DELETE:
+        case BTA_HL_DCH_OP_LOCAL_CLOSE_RECONNECT:
+        case BTA_HL_DCH_OP_NONE:
+            bta_hl_dch_sm_execute(app_idx, mcl_idx, mdl_idx, BTA_HL_DCH_CLOSE_CMPL_EVT, p_data);
+            break;
+        default:
+#if (BTA_HL_DEBUG == TRUE)
+#if (BT_TRACE_VERBOSE == TRUE)
+            APPL_TRACE_ERROR("Invalid dch_oper=%s for close cfm", bta_hl_dch_oper_code(p_dcb->dch_oper) );
+#else
+            APPL_TRACE_ERROR("Invalid dch_oper=%d for close cfm", p_dcb->dch_oper);
+#endif
+#endif
+            break;
+    }
+
+}
+
+/*******************************************************************************
+**
+** Function         bta_hl_dch_mca_close
+**
+** Description      Action routine for processing the DCH close request
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hl_dch_mca_close(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx,
+                          tBTA_HL_DATA *p_data)
+{
+    tBTA_HL_APP_CB          *p_acb  = BTA_HL_GET_APP_CB_PTR(app_idx);
+    tBTA_HL_MCL_CB          *p_mcb  = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+    tBTA_HL_MDL_CB          *p_dcb  = BTA_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx);
+    tBTA_HL_STATUS          status = BTA_HL_STATUS_OK;
+    tBTA_HL                 evt_data;
+
+#if (BTA_HL_DEBUG == TRUE)
+    APPL_TRACE_DEBUG("bta_hl_dch_mca_close");
+#endif
+    if (!p_dcb->cout_oper)
+    {
+        p_dcb->close_pending = FALSE;
+        if (MCA_CloseReq((tMCA_DL)p_dcb->mdl_handle)== MCA_SUCCESS)
+        {
+            p_dcb->dch_oper = BTA_HL_DCH_OP_LOCAL_CLOSE;
+        }
+        else
+        {
+            status = BTA_HL_STATUS_FAIL;
+        }
+
+        if ((status != BTA_HL_STATUS_OK) &&
+            (p_mcb->cch_close_dch_oper != BTA_HL_CCH_CLOSE_OP_DCH_CLOSE))
+        {
+            bta_hl_build_dch_close_cfm(&evt_data,
+                                       p_acb->app_handle,
+                                       p_mcb->mcl_handle,
+                                       p_data->api_dch_close.mdl_handle,
+                                       status);
+            p_acb->p_cback(BTA_HL_DCH_CLOSE_CFM_EVT,(tBTA_HL *) &evt_data );
+        }
+    }
+    else
+    {
+        p_dcb->close_pending = TRUE;
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         bta_hl_dch_mca_open_ind
+**
+** Description      Action routine for processing the open indication
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hl_dch_mca_open_ind(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx,
+                             tBTA_HL_DATA *p_data)
+{
+    tBTA_HL_APP_CB      *p_acb  = BTA_HL_GET_APP_CB_PTR(app_idx);
+    tBTA_HL_MCL_CB      *p_mcb  = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+    tBTA_HL_MDL_CB      *p_dcb  = BTA_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx);
+    tMCA_DL_OPEN        *p_open_ind = &p_data->mca_evt.mca_data.open_ind;
+    tBTA_HL             evt_data;
+    tBTA_HL_EVT         event;
+    UINT8               old_dch_oper = BTA_HL_DCH_OP_NONE;
+    BOOLEAN             send_event = FALSE;
+
+
+#if (BTA_HL_DEBUG == TRUE)
+    APPL_TRACE_DEBUG("bta_hl_dch_mca_open_ind");
+#endif
+    if ((p_dcb->dch_oper == BTA_HL_DCH_OP_REMOTE_OPEN) ||
+        (p_dcb->dch_oper == BTA_HL_DCH_OP_REMOTE_RECONNECT)    )
+    {
+        p_dcb->mdl_handle = (tBTA_HL_MDL_HANDLE) p_open_ind->mdl;
+        p_dcb->mtu        = p_open_ind->mtu;
+
+        evt_data.dch_open_ind.mdl_handle = p_dcb->mdl_handle;
+        evt_data.dch_open_ind.mcl_handle = p_mcb->mcl_handle;
+        evt_data.dch_open_ind.app_handle = p_acb->app_handle;
+
+        evt_data.dch_open_ind.local_mdep_id = p_dcb->local_mdep_id;
+        evt_data.dch_open_ind.mdl_id = p_dcb->mdl_id;
+        evt_data.dch_open_ind.mtu = p_dcb->mtu;
+
+        if ( p_dcb->chnl_cfg.fcr_opt.mode == L2CAP_FCR_ERTM_MODE )
+        {
+            evt_data.dch_open_ind.dch_mode = BTA_HL_DCH_MODE_RELIABLE;
+            if (!bta_hl_is_the_first_reliable_existed(app_idx, mcl_idx))
+            {
+                p_dcb->is_the_first_reliable = TRUE;
+            }
+        }
+        else
+        {
+            evt_data.dch_open_ind.dch_mode = BTA_HL_DCH_MODE_STREAMING;
+        }
+        evt_data.dch_open_ind.first_reliable = p_dcb->is_the_first_reliable ;
+
+        old_dch_oper = p_dcb->dch_oper;
+        p_dcb->dch_oper = BTA_HL_DCH_OP_NONE;
+
+
+    }
+
+    switch (old_dch_oper)
+    {
+        case BTA_HL_DCH_OP_REMOTE_OPEN:
+
+            p_dcb->dch_mode = evt_data.dch_open_ind.dch_mode;
+            if (p_dcb->local_mdep_id != BTA_HL_ECHO_TEST_MDEP_ID)
+            {
+                bta_hl_save_mdl_cfg(app_idx, mcl_idx,mdl_idx);
+                event= BTA_HL_DCH_OPEN_IND_EVT;
+                send_event= TRUE;
+            }
+            else
+            {
+                p_dcb->echo_oper = BTA_HL_ECHO_OP_ECHO_PKT;
+            }
+
+            break;
+
+        case BTA_HL_DCH_OP_REMOTE_RECONNECT:
+
+            if (bta_hl_validate_chan_cfg(app_idx, mcl_idx, mdl_idx))
+            {
+                bta_hl_save_mdl_cfg(app_idx, mcl_idx,mdl_idx);
+                event= BTA_HL_DCH_RECONNECT_IND_EVT;
+                send_event= TRUE;
+            }
+            else
+            {
+                if (MCA_CloseReq((tMCA_DL) p_dcb->mdl_handle) == MCA_SUCCESS)
+                {
+                    p_dcb->dch_oper = BTA_HL_DCH_OP_LOCAL_CLOSE_RECONNECT;
+                }
+                else
+                {
+                    APPL_TRACE_ERROR("Unabel to close DCH for reconnect cfg mismatch");
+                }
+            }
+            break;
+        default:
+            break;
+    }
+
+    if (send_event)
+    {
+        p_acb->p_cback(event ,(tBTA_HL *) &evt_data );
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_hl_dch_mca_open_cfm
+**
+** Description      Action routine for processing the open confirmation
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hl_dch_mca_open_cfm(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx,
+                             tBTA_HL_DATA *p_data)
+{
+    tBTA_HL_APP_CB      *p_acb  = BTA_HL_GET_APP_CB_PTR(app_idx);
+    tBTA_HL_MCL_CB      *p_mcb  = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+    tBTA_HL_MDL_CB      *p_dcb  = BTA_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx);
+    tMCA_DL_OPEN        *p_open_cfm = &p_data->mca_evt.mca_data.open_cfm;
+    tBTA_HL             evt_data;
+    tBTA_HL_EVT         event;
+    UINT8               old_dch_oper = BTA_HL_DCH_OP_NONE;
+    tBTA_HL_DCH_MODE    dch_mode = BTA_HL_DCH_MODE_STREAMING;
+    BOOLEAN             send_event = FALSE;
+
+
+#if (BTA_HL_DEBUG == TRUE)
+    APPL_TRACE_DEBUG("bta_hl_dch_mca_open_cfm");
+#endif
+    if ((p_dcb->dch_oper == BTA_HL_DCH_OP_LOCAL_OPEN) ||
+        (p_dcb->dch_oper == BTA_HL_DCH_OP_LOCAL_RECONNECT))
+    {
+        p_dcb->mdl_handle = (tBTA_HL_MDL_HANDLE) p_open_cfm->mdl;
+        p_dcb->mtu        = p_open_cfm->mtu;
+
+        /*todo verify dch_mode, mtu and fcs for reconnect */
+        if ( p_dcb->chnl_cfg.fcr_opt.mode == L2CAP_FCR_ERTM_MODE )
+        {
+            dch_mode = BTA_HL_DCH_MODE_RELIABLE;
+        }
+
+        if (p_dcb->local_mdep_id != BTA_HL_ECHO_TEST_MDEP_ID)
+        {
+            if (dch_mode == BTA_HL_DCH_MODE_RELIABLE )
+            {
+                if (!bta_hl_is_the_first_reliable_existed(app_idx, mcl_idx))
+                {
+                    p_dcb->is_the_first_reliable = TRUE;
+                }
+            }
+        }
+
+        bta_hl_build_dch_open_cfm(&evt_data, p_acb->app_handle,
+                                  p_mcb->mcl_handle,
+                                  p_dcb->mdl_handle,
+                                  p_dcb->local_mdep_id,
+                                  p_dcb->mdl_id, dch_mode,
+                                  p_dcb->is_the_first_reliable,
+                                  p_dcb->mtu,
+                                  BTA_HL_STATUS_OK);
+
+        old_dch_oper = p_dcb->dch_oper;
+        p_dcb->dch_oper = BTA_HL_DCH_OP_NONE;
+    }
+    else
+    {
+        APPL_TRACE_ERROR("Error dch oper =%d",  p_dcb->dch_oper);
+        return;
+    }
+
+    switch (old_dch_oper)
+    {
+        case BTA_HL_DCH_OP_LOCAL_OPEN:
+
+            p_dcb->dch_mode = dch_mode;
+            if (p_dcb->local_mdep_id != BTA_HL_ECHO_TEST_MDEP_ID)
+            {
+                bta_hl_save_mdl_cfg(app_idx, mcl_idx, mdl_idx);
+                event= BTA_HL_DCH_OPEN_CFM_EVT;
+                send_event= TRUE;
+            }
+            else
+            {
+                p_dcb->echo_oper = BTA_HL_ECHO_OP_LOOP_BACK;
+                if (MCA_WriteReq((tMCA_DL) p_dcb->mdl_handle, p_dcb->p_echo_tx_pkt)!= MCA_SUCCESS)
+                {
+                    bta_hl_dch_sm_execute(app_idx, mcl_idx, mdl_idx, BTA_HL_DCH_CLOSE_ECHO_TEST_EVT, p_data);
+                }
+                else
+                {
+                    p_dcb->p_echo_tx_pkt = NULL;
+                }
+            }
+            break;
+
+        case BTA_HL_DCH_OP_LOCAL_RECONNECT:
+
+            if (bta_hl_validate_chan_cfg(app_idx, mcl_idx, mdl_idx))
+            {
+                bta_hl_save_mdl_cfg(app_idx, mcl_idx,mdl_idx);
+                event= BTA_HL_DCH_RECONNECT_CFM_EVT;
+                send_event= TRUE;
+            }
+            else
+            {
+                if (MCA_CloseReq((tMCA_DL) p_dcb->mdl_handle) == MCA_SUCCESS)
+                {
+                    p_dcb->dch_oper = BTA_HL_DCH_OP_LOCAL_CLOSE_RECONNECT;
+                }
+                else
+                {
+                    APPL_TRACE_ERROR("Unabel to close DCH for reconnect cfg mismatch");
+                }
+            }
+            break;
+        default:
+            break;
+    }
+
+    if (send_event)
+        p_acb->p_cback(event ,(tBTA_HL *) &evt_data );
+}
+
+
+/*******************************************************************************
+**
+** Function         bta_hl_dch_mca_abort_ind
+**
+** Description      Action routine for processing the abort indication
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hl_dch_mca_abort_ind(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx,
+                              tBTA_HL_DATA *p_data)
+{
+    tBTA_HL_MDL_CB      *p_dcb  = BTA_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx);
+
+
+#if (BTA_HL_DEBUG == TRUE)
+    APPL_TRACE_DEBUG("bta_hl_dch_mca_abort_ind");
+#endif
+
+    p_dcb->abort_oper |= BTA_HL_ABORT_REMOTE_MASK;
+    bta_hl_dch_sm_execute(app_idx, mcl_idx, mdl_idx, BTA_HL_DCH_CLOSE_CMPL_EVT, p_data);
+}
+
+/*******************************************************************************
+**
+** Function         bta_hl_dch_mca_abort_cfm
+**
+** Description      Action routine for processing the abort confirmation
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hl_dch_mca_abort_cfm(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx,
+                              tBTA_HL_DATA *p_data)
+{
+    tBTA_HL_APP_CB      *p_acb  = BTA_HL_GET_APP_CB_PTR(app_idx);
+    tBTA_HL_MCL_CB      *p_mcb  = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+    tBTA_HL_MDL_CB      *p_dcb  = BTA_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx);
+    tBTA_HL             evt_data;
+
+#if (BTA_HL_DEBUG == TRUE)
+    APPL_TRACE_DEBUG("bta_hl_dch_mca_abort_cfm");
+#endif
+
+    if (p_dcb->abort_oper)
+    {
+        if (p_data->mca_evt.mca_data.abort_cfm.rsp_code != MCA_RSP_SUCCESS )
+        {
+            if (p_dcb->abort_oper & BTA_HL_ABORT_LOCAL_MASK)
+            {
+                bta_hl_build_abort_cfm(&evt_data,
+                                       p_acb->app_handle,
+                                       p_mcb->mcl_handle,
+                                       BTA_HL_STATUS_FAIL);
+                p_acb->p_cback(BTA_HL_DCH_ABORT_CFM_EVT ,(tBTA_HL *) &evt_data );
+            }
+        }
+        else
+        {
+            bta_hl_dch_sm_execute(app_idx, mcl_idx, mdl_idx, BTA_HL_DCH_CLOSE_CMPL_EVT, p_data);
+        }
+    }
+    else
+    {
+        APPL_TRACE_ERROR("Not expecting Abort CFM ");
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_hl_dch_mca_abort
+**
+** Description      Action routine for processing the abort request
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hl_dch_mca_abort(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx,
+                          tBTA_HL_DATA *p_data)
+{
+    tBTA_HL_APP_CB          *p_acb  = BTA_HL_GET_APP_CB_PTR(app_idx);
+    tBTA_HL_MCL_CB          *p_mcb  = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+    tBTA_HL_MDL_CB          *p_dcb  = BTA_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx);
+    tMCA_RESULT             mca_result;
+    tBTA_HL                 evt_data;
+
+    if (((p_mcb->sdp_oper == BTA_HL_SDP_OP_DCH_OPEN_INIT) ||
+         (p_mcb->sdp_oper == BTA_HL_SDP_OP_DCH_RECONNECT_INIT)) &&
+        (p_mcb->sdp_mdl_idx == mdl_idx) )
+    {
+        p_dcb->abort_oper |= BTA_HL_ABORT_PENDING_MASK;
+        return;
+    }
+    else if (p_dcb->echo_oper == BTA_HL_ECHO_OP_CI_GET_ECHO_DATA)
+    {
+        p_dcb->abort_oper |= BTA_HL_ABORT_PENDING_MASK;
+        return;
+    }
+
+    p_dcb->abort_oper &= ~BTA_HL_ABORT_PENDING_MASK;
+
+    if ((mca_result = MCA_Abort((tMCA_CL) p_mcb->mcl_handle))!= MCA_SUCCESS)
+    {
+        if (mca_result == MCA_NO_RESOURCES)
+        {
+            p_dcb->abort_oper |= BTA_HL_ABORT_PENDING_MASK;
+        }
+        else
+        {
+            if (p_dcb->abort_oper & BTA_HL_ABORT_LOCAL_MASK)
+            {
+                bta_hl_build_abort_cfm(&evt_data,
+                                       p_acb->app_handle,
+                                       p_mcb->mcl_handle,
+                                       BTA_HL_STATUS_FAIL);
+                p_acb->p_cback(BTA_HL_DCH_ABORT_CFM_EVT ,(tBTA_HL *) &evt_data );
+            }
+            bta_hl_check_cch_close(app_idx, mcl_idx, p_data, FALSE);
+        }
+
+
+    }
+
+#if (BTA_HL_DEBUG == TRUE)
+    APPL_TRACE_DEBUG("bta_hl_dch_mca_abort abort_oper=0x%x", p_dcb->abort_oper);
+#endif
+
+}
+
+/*******************************************************************************
+**
+** Function         bta_hl_dch_mca_reconnect_ind
+**
+** Description      Action routine for processing the reconnect indication
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hl_dch_mca_reconnect_ind(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx,
+                                  tBTA_HL_DATA *p_data)
+{
+    tBTA_HL_MCL_CB      *p_mcb  = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+    tBTA_HL_MDL_CB      *p_dcb  = BTA_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx);
+    tBTA_HL_MDL_CFG     *p_mdl_cfg;
+    tMCA_EVT_HDR        *p_reconnect_ind = &p_data->mca_evt.mca_data.reconnect_ind;
+    UINT8               mdl_cfg_idx, in_use_mdl_idx, mdep_cfg_idx;
+    UINT8               rsp_code = MCA_RSP_SUCCESS;
+
+
+#if (BTA_HL_DEBUG == TRUE)
+    APPL_TRACE_DEBUG("bta_hl_dch_mca_reconnect_ind mdl_id=%d", p_reconnect_ind->mdl_id);
+#endif
+
+    if (bta_hl_find_mdl_cfg_idx(app_idx, mcl_idx, p_reconnect_ind->mdl_id, &mdl_cfg_idx))
+    {
+        if (!bta_hl_find_mdl_idx(app_idx,mcl_idx,p_reconnect_ind->mdl_id, &in_use_mdl_idx) )
+        {
+            p_mdl_cfg =  BTA_HL_GET_MDL_CFG_PTR(app_idx, mdl_cfg_idx);
+
+            if (bta_hl_find_mdep_cfg_idx(app_idx, p_mdl_cfg->local_mdep_id, &mdep_cfg_idx))
+            {
+                p_dcb->in_use               = TRUE;
+                p_dcb->dch_oper             = BTA_HL_DCH_OP_REMOTE_RECONNECT;
+                p_dcb->sec_mask             = (BTA_SEC_AUTHENTICATE | BTA_SEC_ENCRYPT);
+                p_dcb->peer_mdep_id             = 0xFF;
+                p_dcb->local_mdep_id        = p_mdl_cfg->local_mdep_id  ;
+                p_dcb->local_mdep_cfg_idx   = mdep_cfg_idx;
+                p_dcb->local_cfg            = BTA_HL_DCH_CFG_UNKNOWN;
+                p_dcb->mdl_id               = p_reconnect_ind->mdl_id;
+                p_dcb->mdl_cfg_idx_included = TRUE;
+                p_dcb->mdl_cfg_idx          = mdl_cfg_idx;
+                p_dcb->dch_mode             = p_mdl_cfg->dch_mode;
+                bta_hl_find_rxtx_apdu_size(app_idx, mdep_cfg_idx,
+                                           &p_dcb->max_rx_apdu_size,
+                                           &p_dcb->max_tx_apdu_size);
+                bta_hl_set_dch_chan_cfg(app_idx, mcl_idx, mdl_idx, p_data);
+            }
+            else
+            {
+                rsp_code = MCA_RSP_BAD_MDL;
+            }
+        }
+        else
+        {
+            rsp_code = MCA_RSP_BAD_MDL;
+        }
+    }
+    else
+    {
+        rsp_code = MCA_RSP_BAD_MDL;
+    }
+
+    if (MCA_ReconnectMdlRsp((tMCA_CL) p_mcb->mcl_handle,
+                            p_dcb->local_mdep_id,
+                            p_dcb->mdl_id,
+                            rsp_code,
+                            &p_dcb->chnl_cfg)!= MCA_SUCCESS)
+    {
+        MCA_Abort((tMCA_CL) p_mcb->mcl_handle);
+        bta_hl_dch_sm_execute(app_idx, mcl_idx, mdl_idx, BTA_HL_DCH_CLOSE_CMPL_EVT, p_data);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_hl_dch_mca_reconnect_cfm
+**
+** Description      Action routine for processing the reconenct confirmation
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hl_dch_mca_reconnect_cfm(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx,
+                                  tBTA_HL_DATA *p_data)
+{
+    tBTA_HL_MCL_CB      *p_mcb  = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+    tBTA_HL_MDL_CB      *p_dcb  = BTA_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx);
+    tMCA_RSP_EVT        *p_reconnect_cfm = &p_data->mca_evt.mca_data.reconnect_cfm;
+
+
+#if (BTA_HL_DEBUG == TRUE)
+    APPL_TRACE_DEBUG("bta_hl_dch_mca_reconnect_cfm");
+#endif
+    if (p_dcb->abort_oper & BTA_HL_ABORT_PENDING_MASK)
+    {
+        p_dcb->abort_oper &= ~BTA_HL_ABORT_PENDING_MASK;
+        bta_hl_dch_sm_execute(app_idx, mcl_idx, mdl_idx, BTA_HL_DCH_ABORT_EVT, p_data);
+        return;
+    }
+
+
+    if (p_dcb->dch_oper == BTA_HL_DCH_OP_LOCAL_RECONNECT)
+    {
+        if (p_reconnect_cfm->rsp_code == MCA_RSP_SUCCESS)
+        {
+
+            bta_hl_set_dch_chan_cfg(app_idx, mcl_idx, mdl_idx, p_data);
+
+            if (MCA_DataChnlCfg((tMCA_CL) p_mcb->mcl_handle, &p_dcb->chnl_cfg)!= MCA_SUCCESS)
+            {
+                /* should be able to abort so no checking of the return code */
+                MCA_Abort((tMCA_CL) p_mcb->mcl_handle);
+                bta_hl_dch_sm_execute(app_idx, mcl_idx, mdl_idx, BTA_HL_DCH_CLOSE_CMPL_EVT, p_data);
+            }
+        }
+        else
+        {
+            bta_hl_dch_sm_execute(app_idx, mcl_idx, mdl_idx, BTA_HL_DCH_CLOSE_CMPL_EVT, p_data);
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_hl_dch_mca_reconnect
+**
+** Description      Action routine for processing the reconnect request
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hl_dch_mca_reconnect(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx,
+                              tBTA_HL_DATA *p_data)
+{
+    tBTA_HL_MCL_CB      *p_mcb  = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+    tBTA_HL_MDL_CB      *p_dcb  = BTA_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx);
+    tMCA_CHNL_CFG       *p_chnl_cfg=NULL;
+    UINT8               sdp_idx;
+
+#if (BTA_HL_DEBUG == TRUE)
+    APPL_TRACE_DEBUG("bta_hl_dch_mca_reconnect");
+#endif
+    if (bta_hl_find_sdp_idx_using_ctrl_psm(&p_mcb->sdp, p_mcb->ctrl_psm, &sdp_idx))
+    {
+        p_mcb->data_psm = p_mcb->sdp.sdp_rec[sdp_idx].data_psm;
+        if ( MCA_ReconnectMdl((tMCA_CL) p_mcb->mcl_handle,
+                              p_dcb->local_mdep_id,
+                              p_mcb->data_psm,
+                              p_dcb->mdl_id,
+                              p_chnl_cfg ) != MCA_SUCCESS)
+        {
+            bta_hl_dch_sm_execute(app_idx, mcl_idx, mdl_idx, BTA_HL_DCH_CLOSE_CMPL_EVT, p_data);
+        }
+    }
+    else
+    {
+        bta_hl_dch_sm_execute(app_idx, mcl_idx, mdl_idx, BTA_HL_DCH_CLOSE_CMPL_EVT, p_data);
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         bta_hl_dch_create_rsp
+**
+** Description      Action routine for processing BTA_HL_API_DCH_CREATE_RSP_EVT
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hl_dch_create_rsp(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx,
+                           tBTA_HL_DATA *p_data)
+{
+    tBTA_HL_MCL_CB              *p_mcb  = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+    tBTA_HL_MDL_CB              *p_dcb  = BTA_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx);
+    tBTA_HL_API_DCH_CREATE_RSP  *p_create_rsp = &p_data->api_dch_create_rsp;
+    UINT8                       mca_rsp_code = MCA_RSP_SUCCESS;
+
+#if (BTA_HL_DEBUG == TRUE)
+    APPL_TRACE_DEBUG("bta_hl_dch_create_rsp");
+#endif
+    if (p_create_rsp->rsp_code == BTA_HL_DCH_CREATE_RSP_SUCCESS)
+    {
+        p_dcb->dch_oper             = BTA_HL_DCH_OP_REMOTE_OPEN;
+        p_dcb->local_cfg            = p_create_rsp->cfg_rsp;
+
+
+
+        bta_hl_set_dch_chan_cfg(app_idx, mcl_idx, mdl_idx, p_data);
+    }
+    else
+    {
+        mca_rsp_code = MCA_RSP_CFG_REJ;
+    }
+
+    if (MCA_CreateMdlRsp((tMCA_CL) p_mcb->mcl_handle,
+                         p_dcb->local_mdep_id,
+                         p_dcb->mdl_id,
+                         p_dcb->local_cfg,
+                         mca_rsp_code,
+                         &p_dcb->chnl_cfg)!= MCA_SUCCESS)
+    {
+        bta_hl_dch_sm_execute(app_idx, mcl_idx, mdl_idx, BTA_HL_DCH_CLOSE_CMPL_EVT, p_data);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_hl_dch_mca_create_ind
+**
+** Description      Action routine for processing
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hl_dch_mca_create_ind(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx,
+                               tBTA_HL_DATA *p_data)
+{
+    tBTA_HL_APP_CB      *p_acb  = BTA_HL_GET_APP_CB_PTR(app_idx);
+    tBTA_HL_MCL_CB      *p_mcb  = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+    tBTA_HL_MDL_CB      *p_dcb  = BTA_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx);
+    tMCA_CREATE_IND     *p_create_ind = &p_data->mca_evt.mca_data.create_ind;
+    UINT8               mdep_cfg_idx;
+    UINT8               cfg_rsp;
+    UINT8               rsp_code = MCA_RSP_SUCCESS;
+    BOOLEAN             send_create_ind_evt = FALSE;
+    tBTA_HL             evt_data;
+    tBTA_HL_ECHO_CFG    *p_echo_cfg;
+
+#if (BTA_HL_DEBUG == TRUE)
+    APPL_TRACE_DEBUG("bta_hl_dch_mca_create_ind");
+#endif
+
+    if (bta_hl_find_mdep_cfg_idx(app_idx, p_create_ind->dep_id, &mdep_cfg_idx))
+    {
+        if (p_create_ind->dep_id == BTA_HL_ECHO_TEST_MDEP_ID )
+        {
+            if (bta_hl_find_echo_cfg_rsp(app_idx, mcl_idx, mdep_cfg_idx,p_create_ind->cfg, &cfg_rsp ))
+            {
+                p_dcb->in_use               = TRUE;
+                p_dcb->dch_oper             = BTA_HL_DCH_OP_REMOTE_OPEN;
+                p_dcb->local_mdep_id        = p_create_ind->dep_id  ;
+                p_dcb->local_mdep_cfg_idx   = mdep_cfg_idx;
+                p_dcb->local_cfg            = cfg_rsp;
+                p_dcb->remote_cfg           = p_create_ind->cfg ;
+                p_dcb->mdl_id               = p_create_ind->mdl_id;
+                p_dcb->mdl_cfg_idx_included = FALSE;
+                p_echo_cfg                      = BTA_HL_GET_ECHO_CFG_PTR(app_idx);
+                p_dcb->max_rx_apdu_size         = p_echo_cfg->max_rx_apdu_size;
+                p_dcb->max_tx_apdu_size         = p_echo_cfg->max_tx_apdu_size;
+
+                bta_hl_set_dch_chan_cfg(app_idx, mcl_idx, mdl_idx, p_data);
+            }
+            else
+            {
+                rsp_code = MCA_RSP_CFG_REJ;
+            }
+        }
+        else
+
+        {
+            p_dcb->in_use               = TRUE;
+            p_dcb->dch_oper             = BTA_HL_DCH_OP_REMOTE_CREATE;
+            p_dcb->local_mdep_id        = p_create_ind->dep_id  ;
+            p_dcb->local_mdep_cfg_idx   = mdep_cfg_idx;
+            p_dcb->local_cfg            = BTA_HL_DCH_CFG_UNKNOWN;
+            p_dcb->remote_cfg           = p_create_ind->cfg;
+            p_dcb->mdl_id               = p_create_ind->mdl_id;
+            p_dcb->mdl_cfg_idx_included = FALSE;
+            bta_hl_find_rxtx_apdu_size(app_idx, mdep_cfg_idx,
+                                       &p_dcb->max_rx_apdu_size,
+                                       &p_dcb->max_tx_apdu_size);
+            send_create_ind_evt = TRUE;
+        }
+    }
+    else
+    {
+        rsp_code = MCA_RSP_BAD_MDEP;
+    }
+
+    if (send_create_ind_evt)
+    {
+        evt_data.dch_create_ind.mcl_handle =  p_mcb->mcl_handle;
+        evt_data.dch_create_ind.app_handle =  p_acb->app_handle;
+        evt_data.dch_create_ind.local_mdep_id = p_dcb->local_mdep_id;
+        evt_data.dch_create_ind.mdl_id = p_dcb->mdl_id;
+        evt_data.dch_create_ind.cfg = p_dcb->remote_cfg;
+        bdcpy(evt_data.dch_create_ind.bd_addr, p_mcb->bd_addr);
+        p_acb->p_cback(BTA_HL_DCH_CREATE_IND_EVT,(tBTA_HL *) &evt_data );
+    }
+    else
+    {
+        if (MCA_CreateMdlRsp((tMCA_CL) p_mcb->mcl_handle,
+                             p_dcb->local_mdep_id,
+                             p_dcb->mdl_id,
+                             p_dcb->local_cfg,
+                             rsp_code,
+                             &p_dcb->chnl_cfg)!= MCA_SUCCESS)
+        {
+            bta_hl_dch_sm_execute(app_idx, mcl_idx, mdl_idx, BTA_HL_DCH_CLOSE_CMPL_EVT, p_data);
+        }
+        else
+        {
+            if (p_dcb->local_mdep_id == BTA_HL_ECHO_TEST_MDEP_ID)
+            {
+                p_mcb->echo_test = TRUE;
+                p_dcb->echo_oper = BTA_HL_ECHO_OP_OPEN_IND;
+            }
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_hl_dch_mca_create_cfm
+**
+** Description      Action routine for processing
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hl_dch_mca_create_cfm(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx,
+                               tBTA_HL_DATA *p_data)
+{
+    tBTA_HL_MCL_CB      *p_mcb  = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+    tBTA_HL_MDL_CB      *p_dcb  = BTA_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx);
+    tMCA_CREATE_CFM     *p_create_cfm = &p_data->mca_evt.mca_data.create_cfm;
+
+#if (BTA_HL_DEBUG == TRUE)
+    APPL_TRACE_DEBUG("bta_hl_dch_mca_create_cfm");
+#endif
+
+    if (p_dcb->abort_oper & BTA_HL_ABORT_PENDING_MASK)
+    {
+        p_dcb->abort_oper &= ~BTA_HL_ABORT_PENDING_MASK;
+        bta_hl_dch_sm_execute(app_idx, mcl_idx, mdl_idx, BTA_HL_DCH_ABORT_EVT, p_data);
+        return;
+    }
+
+    if (p_dcb->dch_oper == BTA_HL_DCH_OP_LOCAL_OPEN)
+    {
+        if (p_create_cfm->rsp_code == MCA_RSP_SUCCESS)
+        {
+            if (bta_hl_validate_cfg(app_idx, mcl_idx, mdl_idx, p_create_cfm->cfg ))
+            {
+                bta_hl_set_dch_chan_cfg(app_idx, mcl_idx, mdl_idx, p_data);
+
+                if (MCA_DataChnlCfg((tMCA_CL) p_mcb->mcl_handle, &p_dcb->chnl_cfg)!= MCA_SUCCESS)
+                {
+                    /* this should not happen */
+                    APPL_TRACE_ERROR("Unable to create data channel");
+                    MCA_Abort((tMCA_CL) p_mcb->mcl_handle);
+                    bta_hl_dch_sm_execute(app_idx, mcl_idx, mdl_idx, BTA_HL_DCH_CLOSE_CMPL_EVT, p_data);
+                }
+                else
+                {
+                    if (p_dcb->local_mdep_id == BTA_HL_ECHO_TEST_MDEP_ID)
+                    {
+                        p_dcb->echo_oper = BTA_HL_ECHO_OP_DCH_OPEN_CFM;
+                    }
+                }
+            }
+            else
+            {
+                MCA_Abort((tMCA_CL) p_mcb->mcl_handle);
+                bta_hl_dch_sm_execute(app_idx, mcl_idx, mdl_idx, BTA_HL_DCH_CLOSE_CMPL_EVT, p_data);
+            }
+        }
+        else
+        {
+            APPL_TRACE_ERROR("MCA Create- failed");
+            bta_hl_dch_sm_execute(app_idx, mcl_idx, mdl_idx, BTA_HL_DCH_CLOSE_CMPL_EVT, p_data);
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_hl_dch_mca_create
+**
+** Description      Action routine for processing the MDL create request
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hl_dch_mca_create(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx,
+                           tBTA_HL_DATA *p_data)
+{
+    tBTA_HL_MCL_CB      *p_mcb  = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+    tBTA_HL_MDL_CB      *p_dcb  = BTA_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx);
+    tMCA_RESULT         result;
+    UINT8               sdp_idx;
+
+#if BTA_HL_DEBUG == TRUE
+    APPL_TRACE_DEBUG("bta_hl_dch_mca_create");
+#endif
+
+    if (bta_hl_find_sdp_idx_using_ctrl_psm(&p_mcb->sdp, p_mcb->ctrl_psm, &sdp_idx) &&
+        bta_hl_validate_peer_cfg(app_idx, mcl_idx, mdl_idx,
+                                 p_dcb->peer_mdep_id,
+                                 p_dcb->peer_mdep_role,
+                                 sdp_idx))
+    {
+
+        p_mcb->data_psm = p_mcb->sdp.sdp_rec[sdp_idx].data_psm;
+        if ( (result = MCA_CreateMdl((tMCA_CL) p_mcb->mcl_handle,
+                                     p_dcb->local_mdep_id,
+                                     p_mcb->data_psm,
+                                     p_dcb->mdl_id,
+                                     p_dcb->peer_mdep_id,
+                                     p_dcb->local_cfg,
+                                     NULL )) != MCA_SUCCESS)
+        {
+            APPL_TRACE_ERROR("MCA_CreateMdl FAIL mca_result=%d", result);
+            bta_hl_dch_sm_execute(app_idx, mcl_idx, mdl_idx, BTA_HL_DCH_CLOSE_CMPL_EVT, p_data);
+        }
+    }
+    else
+    {
+        APPL_TRACE_ERROR("MCA Create- SDP idx or peer MDEP cfg not found");
+        bta_hl_dch_sm_execute(app_idx, mcl_idx, mdl_idx, BTA_HL_DCH_CLOSE_CMPL_EVT, p_data);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_hl_dch_sdp_fail
+**
+** Description      Action routine for processing the SDP failed event
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hl_dch_sdp_fail(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx,
+                         tBTA_HL_DATA *p_data)
+{
+
+#if (BTA_HL_DEBUG == TRUE)
+    APPL_TRACE_DEBUG("bta_hl_dch_sdp_fail");
+#endif
+    bta_hl_dch_sm_execute(app_idx, mcl_idx, mdl_idx, BTA_HL_DCH_CLOSE_CMPL_EVT, p_data);
+}
+
+/******************************************************************************
+**
+** Function         bta_hl_sdp_cback
+**
+** Description      This is the SDP callback function used by HL.
+**                  This function will be executed by SDP when the service
+**                  search is completed.  If the search is successful, it
+**                  finds the first record in the database that matches the
+**                  UUID of the search.  Then retrieves the scn from the
+**                  record.
+**
+** Returns          void.
+**
+******************************************************************************/
+static void bta_hl_sdp_cback(UINT8 sdp_oper, UINT8 app_idx, UINT8 mcl_idx,
+                             UINT8 mdl_idx, UINT16 status)
+{
+    tBTA_HL_MCL_CB                  *p_cb = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+    tBTA_HL_SDP_REC                 *p_hdp_rec;
+    tBTA_HL_CCH_SDP                 *p_cch_buf;
+    tBTA_HL_DCH_SDP                 *p_dch_buf;
+    tSDP_DISC_REC                   *p_rec = NULL;
+    tSDP_PROTOCOL_ELEM              pe;
+    tSDP_DISC_ATTR                  *p_attr;
+    UINT8                           i, rec_cnt;
+    tBTA_HL_SUP_FEATURE_LIST_ELEM   sup_feature;
+    BOOLEAN                         sdp_parsing_ok =FALSE, result=FALSE;
+    UINT16                          event;
+    tBTA_HL_MDL_CB                  *p_dcb;
+    UINT16                          service_uuid;
+    UINT16                          name_len;
+
+#if BTA_HL_DEBUG == TRUE
+    APPL_TRACE_DEBUG("bta_hl_sdp_cback status:%d sdp_oper=%d app_idx=%d, mcl_idx=%d,   mdl_idx=%d",
+                      status, sdp_oper, app_idx, mcl_idx, mdl_idx);
+#endif
+
+    rec_cnt = 0;
+    service_uuid = bta_hl_get_service_uuids(sdp_oper, app_idx, mcl_idx, mdl_idx);
+
+    if (status == SDP_SUCCESS || status == SDP_DB_FULL)
+    {
+        memset(&p_cb->sdp,0, sizeof(tBTA_HL_SDP));
+        do
+        {
+            if (bta_hl_find_service_in_db(app_idx, mcl_idx, service_uuid, &p_rec))
+            {
+                p_hdp_rec = &p_cb->sdp.sdp_rec[rec_cnt];
+                p_cb->sdp.num_recs = rec_cnt+1;
+            }
+            else
+            {
+                break;
+            }
+
+            if (SDP_FindProtocolListElemInRec(p_rec, UUID_PROTOCOL_L2CAP, &pe))
+            {
+                p_hdp_rec->ctrl_psm  = (UINT16) pe.params[0];
+            }
+            else
+            {
+                APPL_TRACE_WARNING("Control PSM not found");
+                break;
+            }
+            if (SDP_FindAddProtoListsElemInRec(p_rec, UUID_PROTOCOL_L2CAP, &pe))
+            {
+                p_hdp_rec->data_psm = (UINT16) pe.params[0];
+            }
+            else
+            {
+                APPL_TRACE_WARNING("Data PSM not found");
+                break;
+            }
+
+            p_hdp_rec->srv_name[0]= '\0';
+            if ((p_attr = SDP_FindAttributeInRec(p_rec, ATTR_ID_SERVICE_NAME)) != NULL)
+            {
+                if (SDP_DISC_ATTR_LEN(p_attr->attr_len_type) < BT_MAX_SERVICE_NAME_LEN)
+                    name_len = (UINT16)SDP_DISC_ATTR_LEN(p_attr->attr_len_type);
+                else
+                    name_len = BT_MAX_SERVICE_NAME_LEN;
+                memcpy(p_hdp_rec->srv_name, p_attr->attr_value.v.array, name_len);
+            }
+
+            p_hdp_rec->srv_desp[0]= '\0';
+            if ((p_attr = SDP_FindAttributeInRec(p_rec, ATTR_ID_SERVICE_DESCRIPTION)) != NULL)
+            {
+                if (SDP_DISC_ATTR_LEN(p_attr->attr_len_type) < BT_MAX_SERVICE_NAME_LEN)
+                    name_len = (UINT16)SDP_DISC_ATTR_LEN(p_attr->attr_len_type);
+                else
+                    name_len = BT_MAX_SERVICE_NAME_LEN;
+                memcpy(p_hdp_rec->srv_desp, p_attr->attr_value.v.array, name_len);
+            }
+
+
+            p_hdp_rec->provider_name[0]= '\0';
+            if ((p_attr = SDP_FindAttributeInRec(p_rec, ATTR_ID_PROVIDER_NAME)) != NULL)
+            {
+                if (SDP_DISC_ATTR_LEN(p_attr->attr_len_type) < BT_MAX_SERVICE_NAME_LEN)
+                    name_len = (UINT16)SDP_DISC_ATTR_LEN(p_attr->attr_len_type);
+                else
+                    name_len = BT_MAX_SERVICE_NAME_LEN;
+                memcpy(p_hdp_rec->provider_name, p_attr->attr_value.v.array, name_len);
+            }
+
+            if ((p_attr = SDP_FindAttributeInRec(p_rec, ATTR_ID_HDP_MCAP_SUP_PROC))!=NULL)
+            {
+                p_hdp_rec->mcap_sup_proc = p_attr->attr_value.v.u8;
+            }
+            else
+            {
+                APPL_TRACE_WARNING("MCAP SUP PROC not found");
+                break;
+            }
+
+            if ((p_attr = SDP_FindAttributeInRec(p_rec, ATTR_ID_HDP_SUP_FEAT_LIST ))!=NULL)
+            {
+                if (bta_hl_fill_sup_feature_list (p_attr, &sup_feature))
+                {
+                    p_hdp_rec->num_mdeps = (UINT8) sup_feature.num_elems;
+                    APPL_TRACE_WARNING("bta_hl_sdp_cback num_mdeps %d",sup_feature.num_elems);
+                    for (i=0; i<sup_feature.num_elems; i++)
+                    {
+                        p_hdp_rec->mdep_cfg[i].data_type = sup_feature.list_elem[i].data_type;
+                        p_hdp_rec->mdep_cfg[i].mdep_id = sup_feature.list_elem[i].mdep_id;
+                        p_hdp_rec->mdep_cfg[i].mdep_role = sup_feature.list_elem[i].mdep_role;
+                        /* Check MDEP Description pointer to prevent crash due to null pointer */
+                        if (sup_feature.list_elem[i].p_mdep_desp != NULL)
+                        {
+                            strlcpy(p_hdp_rec->mdep_cfg[i].mdep_desp,
+                                    sup_feature.list_elem[i].p_mdep_desp,
+                                    BTA_HL_MDEP_DESP_LEN);
+                        }
+                        else
+                        {
+                            APPL_TRACE_ERROR("bta_hl_sdp_cback Incorrect Mdep[%d] Description (Null ptr)", i);
+                        }
+                    }
+
+                    sdp_parsing_ok = TRUE;
+                }
+                else
+                {
+                    APPL_TRACE_WARNING("HDP supported feature list fill failed");
+                    break;
+                }
+            }
+            else
+            {
+                APPL_TRACE_WARNING("HDP supported feature list not found");
+                break;
+            }
+#if BTA_HL_DEBUG == TRUE
+            APPL_TRACE_DEBUG("record=%d ctrl_psm=%0x data_psm=%x",
+                              rec_cnt+1,
+                              p_hdp_rec->ctrl_psm,
+                              p_hdp_rec->data_psm );
+            APPL_TRACE_DEBUG("srv_name=[%s]",(p_hdp_rec->srv_name[0] != '\0')? p_hdp_rec->srv_name:"NULL");
+            APPL_TRACE_DEBUG("srv_desp=[%s]",(p_hdp_rec->srv_desp[0] != '\0')? p_hdp_rec->srv_desp:"NULL");
+            for (i=0; i<sup_feature.num_elems; i++)
+            {
+                APPL_TRACE_DEBUG("index=0x%02x mdep_id=0x%04x data type=0x%04x mdep role=%s(0x%02x)",
+                                  (i+1),
+                                  p_hdp_rec->mdep_cfg[i].mdep_id,
+                                  p_hdp_rec->mdep_cfg[i].data_type,
+                                  (p_hdp_rec->mdep_cfg[i].mdep_role == BTA_HL_MDEP_ROLE_SOURCE)?"Src":"Snk",
+                                  p_hdp_rec->mdep_cfg[i].mdep_role);
+            }
+            APPL_TRACE_DEBUG("provider_name=[%s]",(p_hdp_rec->provider_name[0] != '\0')? p_hdp_rec->provider_name:"NULL");
+            APPL_TRACE_DEBUG("found MCAP sup procedure=%d",
+                              p_cb->sdp.sdp_rec[rec_cnt].mcap_sup_proc );
+#endif
+            rec_cnt++;
+            if (rec_cnt >= BTA_HL_NUM_SDP_RECS)
+            {
+                APPL_TRACE_WARNING("No more spaces for SDP recs max_rec_cnt=%d", BTA_HL_NUM_SDP_RECS);
+                break;
+            }
+
+
+        } while (TRUE);
+    }
+
+    osi_free_and_reset((void **)&p_cb->p_db);
+
+    if ( (status == SDP_SUCCESS || status == SDP_DB_FULL) &&
+         p_cb->sdp.num_recs  &&
+         sdp_parsing_ok)
+    {
+        result = TRUE;
+    }
+    else
+    {
+        APPL_TRACE_WARNING("SDP Failed sdp_status=%d num_recs=%d sdp_parsing_ok=%d ",
+                            status, p_cb->sdp.num_recs,sdp_parsing_ok );
+    }
+
+
+    p_cb->sdp_oper = BTA_HL_SDP_OP_NONE;
+
+    switch (sdp_oper )
+    {
+        case BTA_HL_SDP_OP_CCH_INIT:
+        case BTA_HL_SDP_OP_SDP_QUERY_NEW:
+        case BTA_HL_SDP_OP_SDP_QUERY_CURRENT:
+
+            /* send result in event back to BTA */
+            p_cch_buf = (tBTA_HL_CCH_SDP *)osi_malloc(sizeof(tBTA_HL_CCH_SDP));
+            if (result) {
+                if (sdp_oper == BTA_HL_SDP_OP_CCH_INIT) {
+                    event = BTA_HL_CCH_SDP_OK_EVT;
+                    if (p_cb->close_pending)
+                        event = BTA_HL_CCH_SDP_FAIL_EVT;
+                } else {
+                    event = BTA_HL_SDP_QUERY_OK_EVT;
+                }
+            } else {
+                if (sdp_oper == BTA_HL_SDP_OP_CCH_INIT)
+                    event = BTA_HL_CCH_SDP_FAIL_EVT;
+                else 
+                    event = BTA_HL_SDP_QUERY_FAIL_EVT;
+            }
+            p_cch_buf->hdr.event = event;
+
+            p_cch_buf->app_idx = app_idx;
+            p_cch_buf->mcl_idx = mcl_idx;
+            p_cch_buf->release_mcl_cb = FALSE;
+            if (sdp_oper == BTA_HL_SDP_OP_SDP_QUERY_NEW)
+                p_cch_buf->release_mcl_cb = TRUE;
+
+            bta_sys_sendmsg(p_cch_buf);
+            break;
+        case BTA_HL_SDP_OP_DCH_OPEN_INIT:
+        case BTA_HL_SDP_OP_DCH_RECONNECT_INIT:
+            p_dch_buf = (tBTA_HL_DCH_SDP *)osi_malloc(sizeof(tBTA_HL_DCH_SDP));
+            p_dch_buf->hdr.event = BTA_HL_DCH_SDP_FAIL_EVT;
+            p_dch_buf->app_idx = app_idx;
+            p_dch_buf->mcl_idx = mcl_idx;
+            p_dch_buf->mdl_idx = mdl_idx;
+            p_dcb = BTA_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx);
+            if (p_dcb->abort_oper & BTA_HL_ABORT_PENDING_MASK) {
+                p_dcb->abort_oper &= ~BTA_HL_ABORT_PENDING_MASK;
+                result = FALSE;
+            }
+            if (result) {
+                if (sdp_oper == BTA_HL_SDP_OP_DCH_OPEN_INIT) {
+                    if (p_dcb->local_mdep_id == BTA_HL_ECHO_TEST_MDEP_ID) {
+                        p_dch_buf->hdr.event = BTA_HL_DCH_ECHO_TEST_EVT;
+                    } else {
+                        p_dch_buf->hdr.event = BTA_HL_DCH_OPEN_EVT;
+                    }
+                } else {
+                    p_dch_buf->hdr.event = BTA_HL_DCH_RECONNECT_EVT;
+                }
+            }
+            bta_sys_sendmsg(p_dch_buf);
+            break;
+        default:
+            break;
+    }
+}
+
+
+/******************************************************************************
+**
+** Function         bta_hl_sdp_cback0
+**
+** Description      This is the SDP callback function used by index = 0
+**
+** Returns          void.
+**
+******************************************************************************/
+static void bta_hl_sdp_cback0(UINT16 status)
+{
+    bta_hl_sdp_cback(bta_hl_cb.scb[0].sdp_oper,
+                     bta_hl_cb.scb[0].app_idx,
+                     bta_hl_cb.scb[0].mcl_idx,
+                     bta_hl_cb.scb[0].mdl_idx,
+                     status);
+    bta_hl_deallocate_spd_cback(0);
+}
+
+/******************************************************************************
+**
+** Function         bta_hl_sdp_cback1
+**
+** Description      This is the SDP callback function used by index = 1
+**
+** Parameters       status  - status of the SDP callabck
+**
+** Returns          void.
+**
+******************************************************************************/
+static void bta_hl_sdp_cback1(UINT16 status)
+{
+    bta_hl_sdp_cback(bta_hl_cb.scb[1].sdp_oper,
+                     bta_hl_cb.scb[1].app_idx,
+                     bta_hl_cb.scb[1].mcl_idx,
+                     bta_hl_cb.scb[1].mdl_idx,
+                     status);
+    bta_hl_deallocate_spd_cback(1);
+}
+
+/******************************************************************************
+**
+** Function         bta_hl_sdp_cback2
+**
+** Description      This is the SDP callback function used by index = 2
+**
+** Returns          void.
+**
+******************************************************************************/
+static void bta_hl_sdp_cback2(UINT16 status)
+{
+    bta_hl_sdp_cback(bta_hl_cb.scb[2].sdp_oper,
+                     bta_hl_cb.scb[2].app_idx,
+                     bta_hl_cb.scb[2].mcl_idx,
+                     bta_hl_cb.scb[2].mdl_idx,
+                     status);
+    bta_hl_deallocate_spd_cback(2);
+}
+
+/******************************************************************************
+**
+** Function         bta_hl_sdp_cback3
+**
+** Description      This is the SDP callback function used by index = 3
+**
+** Returns          void.
+**
+******************************************************************************/
+static void bta_hl_sdp_cback3(UINT16 status)
+{
+    bta_hl_sdp_cback(bta_hl_cb.scb[3].sdp_oper,
+                     bta_hl_cb.scb[3].app_idx,
+                     bta_hl_cb.scb[3].mcl_idx,
+                     bta_hl_cb.scb[3].mdl_idx,
+                     status);
+    bta_hl_deallocate_spd_cback(3);
+}
+
+/******************************************************************************
+**
+** Function         bta_hl_sdp_cback4
+**
+** Description      This is the SDP callback function used by index = 4
+**
+** Parameters       status  - status of the SDP callabck
+**
+** Returns          void.
+**
+******************************************************************************/
+static void bta_hl_sdp_cback4(UINT16 status)
+{
+    bta_hl_sdp_cback(bta_hl_cb.scb[4].sdp_oper,
+                     bta_hl_cb.scb[4].app_idx,
+                     bta_hl_cb.scb[4].mcl_idx,
+                     bta_hl_cb.scb[4].mdl_idx,
+                     status);
+    bta_hl_deallocate_spd_cback(4);
+}
+
+/******************************************************************************
+**
+** Function         bta_hl_sdp_cback5
+**
+** Description      This is the SDP callback function used by index = 5
+**
+** Parameters       status  - status of the SDP callabck
+**
+** Returns          void.
+**
+******************************************************************************/
+static void bta_hl_sdp_cback5(UINT16 status)
+{
+    bta_hl_sdp_cback(bta_hl_cb.scb[5].sdp_oper,
+                     bta_hl_cb.scb[5].app_idx,
+                     bta_hl_cb.scb[5].mcl_idx,
+                     bta_hl_cb.scb[5].mdl_idx,
+                     status);
+    bta_hl_deallocate_spd_cback(5);
+}
+
+/******************************************************************************
+**
+** Function         bta_hl_sdp_cback6
+**
+** Description      This is the SDP callback function used by index = 6
+**
+** Returns          void.
+**
+******************************************************************************/
+static void bta_hl_sdp_cback6(UINT16 status)
+{
+    bta_hl_sdp_cback(bta_hl_cb.scb[6].sdp_oper,
+                     bta_hl_cb.scb[6].app_idx,
+                     bta_hl_cb.scb[6].mcl_idx,
+                     bta_hl_cb.scb[6].mdl_idx,
+                     status);
+    bta_hl_deallocate_spd_cback(6);
+}
+
+
+/*******************************************************************************
+**
+** Function      bta_hl_deallocate_spd_cback
+**
+** Description   Deallocate a SDP control block
+**
+** Returns      BOOLEAN - TRUE found
+**                        FALSE not found
+**
+*******************************************************************************/
+void bta_hl_deallocate_spd_cback(UINT8 sdp_cback_idx)
+{
+    tBTA_HL_SDP_CB *p_spd_cb = &bta_hl_cb.scb[sdp_cback_idx];
+
+    memset(p_spd_cb, 0, sizeof(tBTA_HL_SDP_CB));
+
+#if BTA_HL_DEBUG == TRUE
+    APPL_TRACE_DEBUG("bta_hl_deallocate_spd_cback index=%d", sdp_cback_idx);
+#endif
+
+
+}
+
+/*******************************************************************************
+**
+** Function      bta_hl_allocate_spd_cback
+**
+** Description   Finds a not in used SDP control block index
+**
+**
+** Returns      BOOLEAN - TRUE found
+**                        FALSE not found
+**
+*******************************************************************************/
+tSDP_DISC_CMPL_CB *bta_hl_allocate_spd_cback(tBTA_HL_SDP_OPER sdp_oper, UINT8 app_idx, UINT8 mcl_idx,
+                                             UINT8 mdl_idx,
+                                             UINT8 *p_sdp_cback_idx)
+{
+    UINT8 i;
+    tSDP_DISC_CMPL_CB *p_cbcak=NULL;
+
+
+    for (i=0; i < BTA_HL_NUM_SDP_CBACKS ; i ++)
+    {
+        if (!bta_hl_cb.scb[i].in_use)
+        {
+            p_cbcak = bta_hl_sdp_cback_arr[i];
+            bta_hl_cb.scb[i].in_use = TRUE;
+            bta_hl_cb.scb[i].sdp_oper = sdp_oper;
+            bta_hl_cb.scb[i].app_idx = app_idx;
+            bta_hl_cb.scb[i].mcl_idx = mcl_idx;
+            bta_hl_cb.scb[i].mdl_idx = mdl_idx;
+            *p_sdp_cback_idx = i;
+            break;
+        }
+    }
+
+    if (i == BTA_HL_NUM_SDP_CBACKS)
+    {
+        APPL_TRACE_WARNING("No scb is available to allocate")
+    }
+    else
+    {
+#if BTA_HL_DEBUG == TRUE
+    APPL_TRACE_DEBUG("bta_hl_allocate_spd_cback cback_idx=%d ",i );
+    APPL_TRACE_DEBUG("sdp_oper=%d, app_idx=%d, mcl_idx=%d,  mdl_idx=%d",
+                      bta_hl_cb.scb[i].sdp_oper,
+                      bta_hl_cb.scb[i].app_idx,
+                      bta_hl_cb.scb[i].mcl_idx,
+                      bta_hl_cb.scb[i].mdl_idx );
+#endif
+    }
+    return p_cbcak;
+}
+
+
+/*******************************************************************************
+**
+** Function         bta_hl_init_sdp
+**
+** Description      Action routine for processing the SDP initiattion request
+**
+** Returns          void
+**
+*******************************************************************************/
+tBTA_HL_STATUS bta_hl_init_sdp(tBTA_HL_SDP_OPER sdp_oper, UINT8 app_idx, UINT8 mcl_idx,
+                               UINT8 mdl_idx)
+{
+    tBTA_HL_MCL_CB      *p_cb  = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+    tSDP_UUID           uuid_list;
+    UINT16              attr_list[BTA_HL_NUM_SRCH_ATTR];
+    UINT16              num_attrs = BTA_HL_NUM_SRCH_ATTR;
+    tBTA_HL_STATUS      status;
+    UINT8               sdp_cback_idx;
+#if BTA_HL_DEBUG == TRUE
+    APPL_TRACE_DEBUG("bta_hl_init_sdp sdp_oper=%d app_idx=%d mcl_idx=%d, mdl_idx=%d",
+                      sdp_oper, app_idx, mcl_idx, mdl_idx);
+#endif
+    if ((p_cb->sdp_cback = bta_hl_allocate_spd_cback(sdp_oper, app_idx, mcl_idx, mdl_idx, &sdp_cback_idx)) != NULL)
+    {
+        if (p_cb->p_db == NULL)
+            (p_cb->p_db = (tSDP_DISCOVERY_DB *)osi_malloc(BTA_HL_DISC_SIZE));
+        attr_list[0] = ATTR_ID_SERVICE_CLASS_ID_LIST;
+        attr_list[1] = ATTR_ID_PROTOCOL_DESC_LIST;
+        attr_list[2] = ATTR_ID_BT_PROFILE_DESC_LIST;
+        attr_list[3] = ATTR_ID_ADDITION_PROTO_DESC_LISTS;
+        attr_list[4] = ATTR_ID_SERVICE_NAME;
+        attr_list[5] = ATTR_ID_SERVICE_DESCRIPTION;
+        attr_list[6] = ATTR_ID_PROVIDER_NAME;
+        attr_list[7] = ATTR_ID_HDP_SUP_FEAT_LIST;
+        attr_list[8] = ATTR_ID_HDP_DATA_EXCH_SPEC;
+        attr_list[9] = ATTR_ID_HDP_MCAP_SUP_PROC;
+
+        uuid_list.len = LEN_UUID_16;
+        uuid_list.uu.uuid16 = UUID_SERVCLASS_HDP_PROFILE;
+        SDP_InitDiscoveryDb(p_cb->p_db, BTA_HL_DISC_SIZE, 1, &uuid_list, num_attrs, attr_list);
+
+        if (!SDP_ServiceSearchAttributeRequest(p_cb->bd_addr, p_cb->p_db, p_cb->sdp_cback))
+        {
+            status = BTA_HL_STATUS_FAIL;
+        } else {
+            status = BTA_HL_STATUS_OK;
+        }
+    } else {
+        status = BTA_HL_STATUS_SDP_NO_RESOURCE;
+    }
+
+    if (status != BTA_HL_STATUS_OK) {
+        osi_free_and_reset((void **)&p_cb->p_db);
+        if (status != BTA_HL_STATUS_SDP_NO_RESOURCE)
+            bta_hl_deallocate_spd_cback(sdp_cback_idx);
+    }
+
+    return status;
+}
+
+/*******************************************************************************
+**
+** Function         bta_hl_cch_sdp_init
+**
+** Description      Action routine for processing the CCH SDP init event
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hl_cch_sdp_init(UINT8 app_idx, UINT8 mcl_idx,  tBTA_HL_DATA *p_data)
+{
+    tBTA_HL_MCL_CB      *p_cb  = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+#if BTA_HL_DEBUG == TRUE
+    APPL_TRACE_DEBUG("bta_hl_cch_init_sdp");
+#endif
+    if ( p_cb->sdp_oper == BTA_HL_SDP_OP_NONE)
+    {
+        p_cb->app_id = p_data->api_cch_open.app_id;
+        p_cb->sdp_oper = BTA_HL_SDP_OP_CCH_INIT;
+
+        if (bta_hl_init_sdp( p_cb->sdp_oper, app_idx, mcl_idx, 0xFF) != BTA_HL_STATUS_OK)
+        {
+            p_cb->sdp_oper = BTA_HL_SDP_OP_NONE;
+            bta_hl_cch_sm_execute(app_idx, mcl_idx, BTA_HL_CCH_SDP_FAIL_EVT, p_data);
+        }
+    }
+    else
+    {
+        APPL_TRACE_ERROR("SDP in use");
+        bta_hl_cch_sm_execute(app_idx, mcl_idx, BTA_HL_CCH_SDP_FAIL_EVT, p_data);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_hl_cch_mca_open
+**
+** Description      Action routine for processing the CCH open request
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hl_cch_mca_open(UINT8 app_idx, UINT8 mcl_idx,  tBTA_HL_DATA *p_data)
+{
+    tBTA_HL_APP_CB      *p_acb  = BTA_HL_GET_APP_CB_PTR(app_idx);
+    tBTA_HL_MCL_CB      *p_mcb  = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+    UINT8               sdp_idx;
+
+#if BTA_HL_DEBUG == TRUE
+    APPL_TRACE_DEBUG("bta_hl_cch_mca_open");
+#endif
+
+    if (bta_hl_find_sdp_idx_using_ctrl_psm(&p_mcb->sdp, p_mcb->req_ctrl_psm, &sdp_idx))
+    {
+        p_mcb->ctrl_psm = p_mcb->sdp.sdp_rec[sdp_idx].ctrl_psm;
+        p_mcb->data_psm = p_mcb->sdp.sdp_rec[sdp_idx].data_psm;
+        if ( MCA_ConnectReq((tMCA_HANDLE) p_acb->app_handle,
+                            p_mcb->bd_addr,
+                            p_mcb->ctrl_psm ,
+                            p_mcb->sec_mask) != MCA_SUCCESS)
+        {
+
+            bta_hl_cch_sm_execute(app_idx, mcl_idx, BTA_HL_CCH_CLOSE_CMPL_EVT, p_data);
+        }
+    }
+    else
+    {
+        bta_hl_cch_sm_execute(app_idx, mcl_idx, BTA_HL_CCH_CLOSE_CMPL_EVT, p_data);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_hl_cch_mca_close
+**
+** Description      Action routine for processing the CCH close request
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hl_cch_mca_close(UINT8 app_idx, UINT8 mcl_idx,  tBTA_HL_DATA *p_data)
+{
+    tBTA_HL_MCL_CB      *p_mcb  = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+
+#if BTA_HL_DEBUG == TRUE
+    APPL_TRACE_DEBUG("bta_hl_cch_mca_close mcl_handle=%d", p_mcb->mcl_handle);
+#endif
+    if (p_mcb->sdp_oper != BTA_HL_SDP_OP_CCH_INIT)
+    {
+        if(p_mcb->mcl_handle)
+        {
+            if ( MCA_DisconnectReq((tMCA_HANDLE) p_mcb->mcl_handle) != MCA_SUCCESS)
+            {
+                bta_hl_cch_sm_execute(app_idx, mcl_idx, BTA_HL_CCH_CLOSE_CMPL_EVT, p_data);
+            }
+        }
+        else
+        {
+            p_mcb->close_pending = TRUE;
+            APPL_TRACE_DEBUG("No valid mcl_handle to stop the CCH setup now so wait until CCH is up then close it" );
+        }
+    }
+    else
+    {
+        p_mcb->close_pending = TRUE;
+        APPL_TRACE_DEBUG("can not stop the CCH setup becasue SDP is in progress so wait until it is done" );
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_hl_cch_close_cmpl
+**
+** Description      Action routine for processing the CCH close complete event
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hl_cch_close_cmpl(UINT8 app_idx, UINT8 mcl_idx,  tBTA_HL_DATA *p_data)
+{
+    tBTA_HL_APP_CB      *p_acb  = BTA_HL_GET_APP_CB_PTR(app_idx);
+    tBTA_HL_MCL_CB      *p_mcb  = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+
+    tBTA_HL             evt_data;
+    tBTA_HL_EVT         event;
+    BOOLEAN             send_evt=TRUE;
+#if BTA_HL_DEBUG == TRUE
+    APPL_TRACE_DEBUG("bta_hl_cch_close_cmpl");
+#endif
+    bta_sys_conn_close(BTA_ID_HL, p_acb->app_id, p_mcb->bd_addr);
+
+    if (p_mcb->cch_oper == BTA_HL_CCH_OP_LOCAL_CLOSE && p_mcb->force_close_local_cch_opening)
+    {
+       p_mcb->cch_oper = BTA_HL_CCH_OP_LOCAL_OPEN;
+       APPL_TRACE_DEBUG("change cch_oper from BTA_HL_CCH_OP_LOCAL_CLOSE to BTA_HL_CCH_OP_LOCAL_OPEN");
+    }
+
+    switch (p_mcb->cch_oper)
+    {
+        case BTA_HL_CCH_OP_LOCAL_OPEN:
+            bta_hl_build_cch_open_cfm(&evt_data,p_mcb->app_id,p_acb->app_handle,
+                                      p_mcb->mcl_handle,
+                                      p_mcb->bd_addr,
+                                      BTA_HL_STATUS_FAIL);
+            event = BTA_HL_CCH_OPEN_CFM_EVT;
+            break;
+        case BTA_HL_CCH_OP_LOCAL_CLOSE:
+            bta_hl_build_cch_close_cfm(&evt_data,  p_acb->app_handle,
+                                       p_mcb->mcl_handle,
+                                       BTA_HL_STATUS_OK);
+            event = BTA_HL_CCH_CLOSE_CFM_EVT;
+            break;
+        case BTA_HL_CCH_OP_REMOTE_CLOSE:
+            bta_hl_build_cch_close_ind(&evt_data,
+                                       p_acb->app_handle,
+                                       p_mcb->mcl_handle,
+                                       p_mcb->intentional_close);
+            event = BTA_HL_CCH_CLOSE_IND_EVT;
+            break;
+        default:
+            send_evt=FALSE;
+            break;
+    }
+
+
+    memset(p_mcb, 0 ,sizeof(tBTA_HL_MCL_CB));
+
+    if (send_evt)p_acb->p_cback(event,(tBTA_HL *) &evt_data );
+
+    bta_hl_check_deregistration(app_idx, p_data);
+}
+
+/*******************************************************************************
+**
+** Function         bta_hl_cch_mca_disconnect
+**
+** Description      Action routine for processing the CCH disconnect indication
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hl_cch_mca_disconnect(UINT8 app_idx, UINT8 mcl_idx,  tBTA_HL_DATA *p_data)
+{
+
+    tBTA_HL_MCL_CB      *p_mcb  = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+    tBTA_HL_MDL_CB      *p_dcb;
+    UINT8              i;
+#if BTA_HL_DEBUG == TRUE
+    APPL_TRACE_DEBUG("bta_hl_cch_mca_disconnect");
+#endif
+
+    p_mcb->intentional_close = FALSE;
+    if (p_data->mca_evt.mca_data.disconnect_ind.reason == L2CAP_DISC_OK)
+    {
+        p_mcb->intentional_close = TRUE;
+    }
+
+    for (i=0; i< BTA_HL_NUM_MDLS_PER_MCL; i++)
+    {
+        p_dcb= BTA_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, i);
+        if (p_dcb->in_use && (p_dcb->dch_state != BTA_HL_DCH_IDLE_ST))
+        {
+            if (p_mcb->cch_oper == BTA_HL_CCH_OP_LOCAL_CLOSE )
+            {
+                bta_hl_dch_sm_execute(app_idx, mcl_idx, i, BTA_HL_DCH_CLOSE_CMPL_EVT, p_data);
+            }
+            else
+            {
+                bta_hl_dch_sm_execute(app_idx, mcl_idx, i, BTA_HL_MCA_CLOSE_IND_EVT, p_data);
+            }
+        }
+    }
+    bta_hl_cch_sm_execute(app_idx, mcl_idx, BTA_HL_CCH_CLOSE_CMPL_EVT, p_data);
+}
+
+/*******************************************************************************
+**
+** Function         bta_hl_cch_mca_disc_open
+**
+** Description      Action routine for disconnect the just opened Control channel
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hl_cch_mca_disc_open(UINT8 app_idx, UINT8 mcl_idx,  tBTA_HL_DATA *p_data)
+{
+    tBTA_HL_MCL_CB      *p_mcb  = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+
+#if BTA_HL_DEBUG == TRUE
+    APPL_TRACE_DEBUG("bta_hl_cch_mca_disc_open mcl_handle=0x%x close_pending=%d", p_data->mca_evt.mcl_handle, p_mcb->close_pending );
+#endif
+
+    p_mcb->close_pending = FALSE;
+    p_mcb->mcl_handle = p_data->mca_evt.mcl_handle;
+    bta_hl_cch_mca_close(app_idx, mcl_idx, p_data);
+}
+
+/*******************************************************************************
+**
+** Function         bta_hl_cch_mca_rsp_tout
+**
+** Description      Action routine for processing the MCAP response timeout
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hl_cch_mca_rsp_tout(UINT8 app_idx, UINT8 mcl_idx,  tBTA_HL_DATA *p_data)
+{
+
+    tBTA_HL_MCL_CB      *p_mcb  = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+#if BTA_HL_DEBUG == TRUE
+    APPL_TRACE_DEBUG("bta_hl_cch_mca_rsp_tout");
+#endif
+
+    p_mcb->rsp_tout = TRUE;
+
+    bta_hl_check_cch_close(app_idx,mcl_idx,p_data,TRUE);
+}
+
+/*******************************************************************************
+**
+** Function         bta_hl_cch_mca_connect
+**
+** Description      Action routine for processing the CCH connect indication
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hl_cch_mca_connect(UINT8 app_idx, UINT8 mcl_idx,  tBTA_HL_DATA *p_data)
+{
+    tBTA_HL_APP_CB      *p_acb  = BTA_HL_GET_APP_CB_PTR(app_idx);
+    tBTA_HL_MCL_CB      *p_mcb  = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+    tBTA_HL             evt_data;
+    tBTA_HL_EVT         event;
+    BOOLEAN             send_event=TRUE;
+
+#if BTA_HL_DEBUG == TRUE
+    APPL_TRACE_DEBUG("bta_hl_cch_mca_connect mcl_handle=%d ", p_data->mca_evt.mcl_handle);
+#endif
+
+    p_mcb->mcl_handle = p_data->mca_evt.mcl_handle;
+    bdcpy(p_mcb->bd_addr, p_data->mca_evt.mca_data.connect_ind.bd_addr);
+    p_mcb->cch_mtu = p_data->mca_evt.mca_data.connect_ind.mtu;
+
+    bta_sys_conn_open(BTA_ID_HL, p_acb->app_id, p_mcb->bd_addr);
+    switch (p_mcb->cch_oper)
+    {
+        case BTA_HL_CCH_OP_LOCAL_OPEN:
+            bta_hl_build_cch_open_cfm(&evt_data, p_mcb->app_id,p_acb->app_handle,
+                                      p_mcb->mcl_handle,
+                                      p_mcb->bd_addr,
+                                      BTA_HL_STATUS_OK);
+            event = BTA_HL_CCH_OPEN_CFM_EVT;
+            break;
+        case BTA_HL_CCH_OP_REMOTE_OPEN:
+            bta_hl_build_cch_open_ind(&evt_data, p_acb->app_handle,
+                                      p_mcb->mcl_handle,
+                                      p_mcb->bd_addr);
+            event = BTA_HL_CCH_OPEN_IND_EVT;
+            break;
+        default:
+            send_event = FALSE;
+            break;
+    }
+
+    p_mcb->cch_oper = BTA_HL_CCH_OP_NONE;
+    if (send_event) p_acb->p_cback(event,(tBTA_HL *) &evt_data );
+}
+
+/*******************************************************************************
+**
+** Function         bta_hl_mcap_ctrl_cback
+**
+** Description      MCAP control callback function for HL.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hl_mcap_ctrl_cback (tMCA_HANDLE handle, tMCA_CL mcl, UINT8 event,
+                             tMCA_CTRL *p_data)
+{
+    BOOLEAN send_event=TRUE;
+    UINT16 mca_event;
+
+#if (BTA_HL_DEBUG == TRUE)
+#if (BT_TRACE_VERBOSE == TRUE)
+    APPL_TRACE_EVENT("bta_hl_mcap_ctrl_cback event[%s]",bta_hl_mcap_evt_code(event));
+#else
+    APPL_TRACE_EVENT("bta_hl_mcap_ctrl_cback event[0x%02x]", event);
+#endif
+#endif
+
+    switch (event)
+    {
+
+        case MCA_CREATE_IND_EVT:
+            mca_event = (UINT16) BTA_HL_MCA_CREATE_IND_EVT;
+            break;
+        case MCA_CREATE_CFM_EVT:
+            mca_event = (UINT16) BTA_HL_MCA_CREATE_CFM_EVT;
+            break;
+        case MCA_RECONNECT_IND_EVT:
+            mca_event = (UINT16) BTA_HL_MCA_RECONNECT_IND_EVT;
+            break;
+        case MCA_RECONNECT_CFM_EVT:
+            mca_event = (UINT16) BTA_HL_MCA_RECONNECT_CFM_EVT;
+            break;
+        case MCA_ABORT_IND_EVT:
+            mca_event = (UINT16) BTA_HL_MCA_ABORT_IND_EVT;
+            break;
+        case MCA_ABORT_CFM_EVT:
+            mca_event = (UINT16) BTA_HL_MCA_ABORT_CFM_EVT;
+            break;
+        case MCA_DELETE_IND_EVT:
+            mca_event = (UINT16) BTA_HL_MCA_DELETE_IND_EVT;
+            break;
+        case MCA_DELETE_CFM_EVT:
+            mca_event = (UINT16) BTA_HL_MCA_DELETE_CFM_EVT;
+            break;
+        case MCA_CONNECT_IND_EVT:
+            mca_event = (UINT16) BTA_HL_MCA_CONNECT_IND_EVT;
+            break;
+        case MCA_DISCONNECT_IND_EVT:
+            mca_event = (UINT16) BTA_HL_MCA_DISCONNECT_IND_EVT;
+            break;
+        case MCA_OPEN_IND_EVT:
+            mca_event = (UINT16) BTA_HL_MCA_OPEN_IND_EVT;
+            break;
+        case MCA_OPEN_CFM_EVT:
+            mca_event = (UINT16) BTA_HL_MCA_OPEN_CFM_EVT;
+            break;
+        case MCA_CLOSE_IND_EVT:
+            mca_event = (UINT16) BTA_HL_MCA_CLOSE_IND_EVT;
+            break;
+        case MCA_CLOSE_CFM_EVT:
+            mca_event = (UINT16) BTA_HL_MCA_CLOSE_CFM_EVT;
+            break;
+        case MCA_CONG_CHG_EVT:
+            mca_event = (UINT16) BTA_HL_MCA_CONG_CHG_EVT;
+            break;
+        case MCA_RSP_TOUT_IND_EVT:
+            mca_event = (UINT16) BTA_HL_MCA_RSP_TOUT_IND_EVT;
+            break;
+        case MCA_ERROR_RSP_EVT:
+
+        default:
+            send_event=FALSE;
+            break;
+    }
+
+    if (send_event) {
+        tBTA_HL_MCA_EVT * p_msg =
+            (tBTA_HL_MCA_EVT *)osi_malloc(sizeof(tBTA_HL_MCA_EVT));
+        p_msg->hdr.event = mca_event;
+        p_msg->app_handle = (tBTA_HL_APP_HANDLE) handle;
+        p_msg->mcl_handle = (tBTA_HL_MCL_HANDLE) mcl;
+        memcpy(&p_msg->mca_data, p_data, sizeof(tMCA_CTRL));
+        bta_sys_sendmsg(p_msg);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_hl_mcap_data_cback
+**
+** Description      MCAP data callback function for HL.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hl_mcap_data_cback (tMCA_DL mdl, BT_HDR *p_pkt)
+{
+    UINT8 app_idx, mcl_idx, mdl_idx;
+    if (bta_hl_find_mdl_idx_using_handle ((tBTA_HL_MDL_HANDLE)mdl, &app_idx, &mcl_idx, &mdl_idx))
+    {
+        tBTA_HL_MCA_RCV_DATA_EVT *p_msg =
+            (tBTA_HL_MCA_RCV_DATA_EVT *)osi_malloc(sizeof(tBTA_HL_MCA_RCV_DATA_EVT));
+        p_msg->hdr.event = BTA_HL_MCA_RCV_DATA_EVT;
+        p_msg->app_idx = app_idx;
+        p_msg->mcl_idx = mcl_idx;
+        p_msg->mdl_idx = mdl_idx;
+        p_msg->p_pkt = p_pkt;
+        bta_sys_sendmsg(p_msg);
+    }
+}
+
+/*****************************************************************************
+**  Debug Functions
+*****************************************************************************/
+#if (BTA_HL_DEBUG == TRUE && BT_TRACE_VERBOSE == TRUE)
+
+/*******************************************************************************
+**
+** Function         bta_hl_mcap_evt_code
+**
+** Description      get the MCAP event string pointer
+**
+** Returns          char * - event string pointer
+**
+*******************************************************************************/
+static char *bta_hl_mcap_evt_code(UINT8 evt_code)
+{
+
+    switch (evt_code)
+    {
+
+        case MCA_ERROR_RSP_EVT:
+            return "MCA_ERROR_RSP_EVT";
+        case MCA_CREATE_IND_EVT:
+            return "MCA_CREATE_IND_EVT";
+        case MCA_CREATE_CFM_EVT:
+            return "MCA_CREATE_CFM_EVT";
+        case MCA_RECONNECT_IND_EVT:
+            return "MCA_RECONNECT_IND_EVT";
+        case MCA_RECONNECT_CFM_EVT:
+            return "MCA_RECONNECT_CFM_EVT";
+        case MCA_ABORT_IND_EVT:
+            return "MCA_ABORT_IND_EVT";
+        case MCA_ABORT_CFM_EVT:
+            return "MCA_ABORT_CFM_EVT";
+        case MCA_DELETE_IND_EVT:
+            return "MCA_DELETE_IND_EVT";
+        case MCA_DELETE_CFM_EVT:
+            return "MCA_DELETE_CFM_EVT";
+
+        case MCA_CONNECT_IND_EVT:
+            return "MCA_CONNECT_IND_EVT";
+        case MCA_DISCONNECT_IND_EVT:
+            return "MCA_DISCONNECT_IND_EVT";
+        case MCA_OPEN_IND_EVT:
+            return "MCA_OPEN_IND_EVT";
+        case MCA_OPEN_CFM_EVT:
+            return "MCA_OPEN_CFM_EVT";
+        case MCA_CLOSE_IND_EVT:
+            return "MCA_CLOSE_IND_EVT";
+        case MCA_CLOSE_CFM_EVT:
+            return "MCA_CLOSE_CFM_EVT";
+        case MCA_CONG_CHG_EVT:
+            return "MCA_CONG_CHG_EVT";
+        case MCA_RSP_TOUT_IND_EVT:
+            return "MCA_RSP_TOUT_IND_EVT";
+        default:
+            return "Unknown MCAP event code";
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         bta_hl_cback_evt_code
+**
+** Description      get the HDP event string pointer
+**
+** Returns          char * - event string pointer
+**
+*******************************************************************************/
+static char *bta_hl_cback_evt_code(UINT8 evt_code)
+{
+
+    switch (evt_code)
+    {
+
+        case BTA_HL_CCH_OPEN_IND_EVT:
+            return "BTA_HL_CCH_OPEN_IND_EVT";
+        case BTA_HL_CCH_OPEN_CFM_EVT:
+            return "BTA_HL_CCH_OPEN_CFM_EVT";
+        case BTA_HL_CCH_CLOSE_IND_EVT:
+            return "BTA_HL_CCH_CLOSE_IND_EVT";
+        case     BTA_HL_CCH_CLOSE_CFM_EVT:
+            return "BTA_HL_CCH_CLOSE_CFM_EVT";
+        case BTA_HL_DCH_OPEN_IND_EVT:
+            return "BTA_HL_DCH_OPEN_IND_EVT";
+        case BTA_HL_DCH_OPEN_CFM_EVT:
+            return "BTA_HL_DCH_OPEN_CFM_EVT";
+        case BTA_HL_DCH_CLOSE_IND_EVT:
+            return "BTA_HL_DCH_CLOSE_IND_EVT";
+        case BTA_HL_DCH_CLOSE_CFM_EVT:
+            return "BTA_HL_DCH_CLOSE_CFM_EVT";
+        case BTA_HL_DCH_RCV_DATA_IND_EVT:
+            return "BTA_HL_DCH_RCV_DATA_IND_EVT";
+        case BTA_HL_REGISTER_CFM_EVT:
+            return "BTA_HL_REGISTER_CFM_EVT";
+        case BTA_HL_DEREGISTER_CFM_EVT:
+            return "BTA_HL_DEREGISTER_CFM_EVT";
+        case BTA_HL_DCH_RECONNECT_CFM_EVT:
+            return "BTA_HL_DCH_RECONNECT_CFM_EVT";
+        case BTA_HL_DCH_RECONNECT_IND_EVT:
+            return "BTA_HL_DCH_RECONNECT_IND_EVT";
+        case BTA_HL_DCH_ECHO_TEST_CFM_EVT:
+            return "BTA_HL_DCH_ECHO_TEST_CFM_EVT";
+        case BTA_HL_SDP_QUERY_CFM_EVT:
+            return "BTA_HL_SDP_QUERY_CFM_EVT";
+        case BTA_HL_CONG_CHG_IND_EVT:
+            return "BTA_HL_CONG_CHG_IND_EVT";
+        case BTA_HL_DCH_CREATE_IND_EVT:
+            return "BTA_HL_DCH_CREATE_IND_EVT";
+        case BTA_HL_DELETE_MDL_IND_EVT:
+            return "BTA_HL_DELETE_MDL_IND_EVT";
+        case BTA_HL_DELETE_MDL_CFM_EVT:
+            return "BTA_HL_DELETE_MDL_CFM_EVT";
+        case BTA_HL_DCH_ABORT_IND_EVT:
+            return "BTA_HL_DCH_ABORT_IND_EVT";
+        case BTA_HL_DCH_ABORT_CFM_EVT:
+            return "BTA_HL_DCH_ABORT_CFM_EVT";
+        default:
+            return "Unknown HDP event code";
+    }
+}
+
+
+
+/*******************************************************************************
+**
+** Function         bta_hl_dch_oper_code
+**
+** Description      Get the DCH operation string
+**
+** Returns          char * - DCH operation string pointer
+**
+*******************************************************************************/
+static char *bta_hl_dch_oper_code(tBTA_HL_DCH_OPER oper_code)
+{
+
+    switch (oper_code)
+    {
+        case BTA_HL_DCH_OP_NONE:
+            return "BTA_HL_DCH_OP_NONE";
+        case BTA_HL_DCH_OP_REMOTE_CREATE:
+            return "BTA_HL_DCH_OP_REMOTE_CREATE";
+        case BTA_HL_DCH_OP_LOCAL_OPEN:
+            return "BTA_HL_DCH_OP_LOCAL_OPEN";
+        case BTA_HL_DCH_OP_REMOTE_OPEN:
+            return "BTA_HL_DCH_OP_REMOTE_OPEN";
+        case BTA_HL_DCH_OP_LOCAL_CLOSE:
+            return "BTA_HL_DCH_OP_LOCAL_CLOSE";
+        case BTA_HL_DCH_OP_REMOTE_CLOSE:
+            return "BTA_HL_DCH_OP_REMOTE_CLOSE";
+        case BTA_HL_DCH_OP_LOCAL_DELETE:
+            return "BTA_HL_DCH_OP_LOCAL_DELETE";
+        case BTA_HL_DCH_OP_REMOTE_DELETE:
+            return "BTA_HL_DCH_OP_REMOTE_DELETE";
+        case BTA_HL_DCH_OP_LOCAL_RECONNECT:
+            return "BTA_HL_DCH_OP_LOCAL_RECONNECT";
+        case BTA_HL_DCH_OP_REMOTE_RECONNECT:
+            return "BTA_HL_DCH_OP_REMOTE_RECONNECT";
+        case BTA_HL_DCH_OP_LOCAL_CLOSE_ECHO_TEST:
+            return "BTA_HL_DCH_OP_LOCAL_CLOSE_ECHO_TEST";
+        case BTA_HL_DCH_OP_LOCAL_CLOSE_RECONNECT:
+            return "BTA_HL_DCH_OP_LOCAL_CLOSE_RECONNECT";
+        default:
+            return "Unknown DCH oper code";
+    }
+}
+
+
+#endif  /* Debug Functions */
+#endif /* HL_INCLUDED */
diff --git a/rtkbt/code/bt/bta/hl/bta_hl_api.c b/rtkbt/code/bt/bta/hl/bta_hl_api.c
new file mode 100755
index 0000000..81813f3
--- /dev/null
+++ b/rtkbt/code/bt/bta/hl/bta_hl_api.c
@@ -0,0 +1,503 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the implementation of the API for the HeaLth device profile (HL)
+ *  subsystem of BTA, Broadcom Corp's Bluetooth application layer for mobile
+ *  phones.
+ *
+ ******************************************************************************/
+
+#include <string.h>
+
+#include "bt_target.h"
+#if defined(HL_INCLUDED) && (HL_INCLUDED == TRUE)
+
+#include "bt_common.h"
+#include "bta_hl_api.h"
+#include "bta_hl_int.h"
+
+/*****************************************************************************
+**  Constants
+*****************************************************************************/
+
+static const tBTA_SYS_REG bta_hl_reg =
+{
+    bta_hl_hdl_event,
+    BTA_HlDisable
+};
+
+/*******************************************************************************
+**
+** Function         BTA_HlEnable
+**
+** Description      Enable the HL subsystems.  This function must be
+**                  called before any other functions in the HL API are called.
+**                  When the enable operation is completed the callback function
+**                  will be called with an BTA_HL_CTRL_ENABLE_CFM_EVT event.
+**
+** Parameters       p_cback - HL event call back function
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_HlEnable(tBTA_HL_CTRL_CBACK *p_ctrl_cback)
+{
+    tBTA_HL_API_ENABLE *p_buf =
+        (tBTA_HL_API_ENABLE *)osi_malloc(sizeof(tBTA_HL_API_ENABLE));
+
+    /* register with BTA system manager */
+    bta_sys_register(BTA_ID_HL, &bta_hl_reg);
+
+    p_buf->hdr.event = BTA_HL_API_ENABLE_EVT;
+    p_buf->p_cback = p_ctrl_cback;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_HlDisable
+**
+** Description     Disable the HL subsystem.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_HlDisable(void)
+{
+    BT_HDR *p_buf = (BT_HDR *)osi_malloc(sizeof(BT_HDR));
+
+    bta_sys_deregister(BTA_ID_HL);
+    p_buf->event = BTA_HL_API_DISABLE_EVT;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_HlUpdate
+**
+** Description      Register an HDP application
+**
+** Parameters       app_id        - Application ID
+**                  p_reg_param   - non-platform related parameters for the
+**                                  HDP application
+**                  p_cback       - HL event callback fucntion
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_HlUpdate(UINT8 app_id, tBTA_HL_REG_PARAM *p_reg_param,
+                  BOOLEAN is_register, tBTA_HL_CBACK *p_cback)
+{
+    tBTA_HL_API_UPDATE *p_buf =
+        (tBTA_HL_API_UPDATE *)osi_malloc(sizeof(tBTA_HL_API_UPDATE));
+
+    APPL_TRACE_DEBUG("%s", __func__);
+
+    p_buf->hdr.event = BTA_HL_API_UPDATE_EVT;
+    p_buf->app_id = app_id;
+    p_buf->is_register = is_register;
+
+    if (is_register) {
+        p_buf->sec_mask = (p_reg_param->sec_mask | BTA_SEC_AUTHENTICATE | BTA_SEC_ENCRYPT);
+        p_buf->p_cback = p_cback;
+        if (p_reg_param->p_srv_name)
+            strlcpy(p_buf->srv_name, p_reg_param->p_srv_name, BTA_SERVICE_NAME_LEN);
+        else
+            p_buf->srv_name[0] = 0;
+
+        if (p_reg_param->p_srv_desp)
+            strlcpy(p_buf->srv_desp, p_reg_param->p_srv_desp, BTA_SERVICE_DESP_LEN);
+        else
+            p_buf->srv_desp[0] = 0;
+
+        if (p_reg_param->p_provider_name)
+            strlcpy(p_buf->provider_name, p_reg_param->p_provider_name, BTA_PROVIDER_NAME_LEN);
+        else
+            p_buf->provider_name[0] = 0;
+    }
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_HlRegister
+**
+** Description      Register an HDP application
+**
+** Parameters       app_id        - Application ID
+**                  p_reg_param   - non-platform related parameters for the
+**                                  HDP application
+**                  p_cback       - HL event callback fucntion
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_HlRegister(UINT8  app_id,
+                    tBTA_HL_REG_PARAM *p_reg_param,
+                    tBTA_HL_CBACK *p_cback)
+{
+    tBTA_HL_API_REGISTER *p_buf =
+        (tBTA_HL_API_REGISTER *)osi_malloc(sizeof(tBTA_HL_API_REGISTER));
+
+    p_buf->hdr.event    = BTA_HL_API_REGISTER_EVT;
+    p_buf->app_id       = app_id;
+    p_buf->sec_mask     = (p_reg_param->sec_mask | BTA_SEC_AUTHENTICATE | BTA_SEC_ENCRYPT);
+    p_buf->p_cback = p_cback;
+
+    if (p_reg_param->p_srv_name)
+        strlcpy(p_buf->srv_name, p_reg_param->p_srv_name, BTA_SERVICE_NAME_LEN);
+    else
+        p_buf->srv_name[0] = 0;
+
+    if (p_reg_param->p_srv_desp)
+        strlcpy(p_buf->srv_desp, p_reg_param->p_srv_desp, BTA_SERVICE_DESP_LEN);
+    else
+        p_buf->srv_desp[0] = 0;
+
+    if (p_reg_param->p_provider_name)
+        strlcpy(p_buf->provider_name, p_reg_param->p_provider_name, BTA_PROVIDER_NAME_LEN);
+    else
+        p_buf->provider_name[0] = 0;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_HlDeregister
+**
+** Description      Deregister an HDP application
+**
+** Parameters       app_handle - Application handle
+**
+** Returns           void
+**
+*******************************************************************************/
+void BTA_HlDeregister(UINT8 app_id,tBTA_HL_APP_HANDLE app_handle)
+{
+    tBTA_HL_API_DEREGISTER *p_buf =
+        (tBTA_HL_API_DEREGISTER *)osi_malloc(sizeof(tBTA_HL_API_DEREGISTER));
+
+    p_buf->hdr.event   = BTA_HL_API_DEREGISTER_EVT;
+    p_buf->app_id      = app_id;
+    p_buf->app_handle  = app_handle;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_HlCchOpen
+**
+** Description      Open a Control channel connection with the specified BD address
+**
+** Parameters       app_handle - Application Handle
+**                  p_open_param - parameters for opening a control channel
+**
+** Returns          void
+**
+**                  Note: The control PSM value is used to select which
+**                  HDP insatnce should be used in case the peer device support
+**                  multiple HDP instances. Also, if the control PSM value is zero
+**                  then the first HDP instance is used for the control channel setup
+*******************************************************************************/
+void BTA_HlCchOpen(UINT8 app_id, tBTA_HL_APP_HANDLE app_handle,
+                   tBTA_HL_CCH_OPEN_PARAM *p_open_param)
+{
+    tBTA_HL_API_CCH_OPEN *p_buf =
+        (tBTA_HL_API_CCH_OPEN *)osi_malloc(sizeof(tBTA_HL_API_CCH_OPEN));
+
+    p_buf->hdr.event = BTA_HL_API_CCH_OPEN_EVT;
+    p_buf->app_id = app_id;
+    p_buf->app_handle = app_handle;
+    p_buf->sec_mask = (p_open_param->sec_mask | BTA_SEC_AUTHENTICATE | BTA_SEC_ENCRYPT);
+    bdcpy(p_buf->bd_addr, p_open_param->bd_addr);
+    p_buf->ctrl_psm = p_open_param->ctrl_psm;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_HlCchClose
+**
+** Description      Close a Control channel connection with the specified MCL
+**                  handle
+**
+** Parameters       mcl_handle - MCL handle
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_HlCchClose(tBTA_HL_MCL_HANDLE mcl_handle)
+{
+    tBTA_HL_API_CCH_CLOSE *p_buf =
+        (tBTA_HL_API_CCH_CLOSE *)osi_malloc(sizeof(tBTA_HL_API_CCH_CLOSE));
+
+    p_buf->hdr.event = BTA_HL_API_CCH_CLOSE_EVT;
+    p_buf->mcl_handle = mcl_handle;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_HlDchOpen
+**
+** Description      Open a data channel connection with the specified DCH parameters
+**
+** Parameters       mcl_handle - MCL handle
+**                  p_open_param - parameters for opening a data channel
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_HlDchOpen(tBTA_HL_MCL_HANDLE mcl_handle,
+                   tBTA_HL_DCH_OPEN_PARAM *p_open_param)
+{
+    tBTA_HL_API_DCH_OPEN *p_buf =
+        (tBTA_HL_API_DCH_OPEN *)osi_malloc(sizeof(tBTA_HL_API_DCH_OPEN));
+
+    p_buf->hdr.event = BTA_HL_API_DCH_OPEN_EVT;
+    p_buf->mcl_handle = mcl_handle;
+    p_buf->ctrl_psm = p_open_param->ctrl_psm;
+    p_buf->local_mdep_id = p_open_param->local_mdep_id;
+    p_buf->peer_mdep_id = p_open_param->peer_mdep_id;
+    p_buf->local_cfg = p_open_param->local_cfg;
+    p_buf->sec_mask = (p_open_param->sec_mask | BTA_SEC_AUTHENTICATE | BTA_SEC_ENCRYPT);
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_HlDchReconnect
+**
+** Description      Reconnect a data channel with the specified MDL_ID
+**
+** Parameters       mcl_handle      - MCL handle
+*8                  p_recon_param   - parameters for reconnecting a data channel
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_HlDchReconnect(tBTA_HL_MCL_HANDLE mcl_handle,
+                        tBTA_HL_DCH_RECONNECT_PARAM *p_recon_param)
+{
+    tBTA_HL_API_DCH_RECONNECT *p_buf =
+        (tBTA_HL_API_DCH_RECONNECT *)osi_malloc(sizeof(tBTA_HL_API_DCH_RECONNECT));
+
+    p_buf->hdr.event = BTA_HL_API_DCH_RECONNECT_EVT;
+    p_buf->mcl_handle = mcl_handle;
+    p_buf->ctrl_psm = p_recon_param->ctrl_psm;
+    p_buf->mdl_id = p_recon_param->mdl_id;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_HlDchClose
+**
+** Description      Close a data channel with the specified MDL handle
+**
+** Parameters       mdl_handle  - MDL handle
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_HlDchClose(tBTA_HL_MDL_HANDLE mdl_handle)
+{
+    tBTA_HL_API_DCH_CLOSE *p_buf =
+        (tBTA_HL_API_DCH_CLOSE *)osi_malloc(sizeof(tBTA_HL_API_DCH_CLOSE));
+
+    p_buf->hdr.event = BTA_HL_API_DCH_CLOSE_EVT;
+    p_buf->mdl_handle = mdl_handle;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_HlDchAbort
+**
+** Description      Abort the current data channel setup with the specified MCL
+**                  handle
+**
+** Parameters       mcl_handle  - MCL handle
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_HlDchAbort(tBTA_HL_MCL_HANDLE mcl_handle)
+{
+    tBTA_HL_API_DCH_ABORT *p_buf =
+        (tBTA_HL_API_DCH_ABORT *)osi_malloc(sizeof(tBTA_HL_API_DCH_ABORT));
+
+    p_buf->hdr.event = BTA_HL_API_DCH_ABORT_EVT;
+    p_buf->mcl_handle = mcl_handle;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_HlSendData
+**
+** Description      Send an APDU to the peer device
+**
+** Parameters       mdl_handle  - MDL handle
+**                  pkt_size    - size of the data packet to be sent
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_HlSendData(tBTA_HL_MDL_HANDLE mdl_handle,
+                    UINT16           pkt_size)
+{
+    tBTA_HL_API_SEND_DATA *p_buf =
+        (tBTA_HL_API_SEND_DATA *)osi_malloc(sizeof(tBTA_HL_API_SEND_DATA));
+
+    p_buf->hdr.event = BTA_HL_API_SEND_DATA_EVT;
+    p_buf->mdl_handle = mdl_handle;
+    p_buf->pkt_size = pkt_size;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_HlDeleteMdl
+**
+** Description      Delete the specified MDL_ID within the specified MCL handle
+**
+** Parameters       mcl_handle  - MCL handle
+**                  mdl_id      - MDL ID
+**
+** Returns          void
+**
+**                  note: If mdl_id = 0xFFFF then this means to delete all MDLs
+**                        and this value can only be used with DeleteMdl request only
+**                        not other requests
+**
+*******************************************************************************/
+void BTA_HlDeleteMdl(tBTA_HL_MCL_HANDLE mcl_handle,
+                     tBTA_HL_MDL_ID mdl_id )
+{
+    tBTA_HL_API_DELETE_MDL *p_buf =
+        (tBTA_HL_API_DELETE_MDL *)osi_malloc(sizeof(tBTA_HL_API_DELETE_MDL));
+
+    p_buf->hdr.event = BTA_HL_API_DELETE_MDL_EVT;
+    p_buf->mcl_handle = mcl_handle;
+    p_buf->mdl_id = mdl_id;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_HlDchEchoTest
+**
+** Description      Initiate an echo test with the specified MCL handle
+**
+** Parameters       mcl_handle           - MCL handle
+*8                  p_echo_test_param   -  parameters for echo testing
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_HlDchEchoTest( tBTA_HL_MCL_HANDLE  mcl_handle,
+                        tBTA_HL_DCH_ECHO_TEST_PARAM *p_echo_test_param)
+{
+    tBTA_HL_API_DCH_ECHO_TEST *p_buf =
+        (tBTA_HL_API_DCH_ECHO_TEST *)osi_malloc(sizeof(tBTA_HL_API_DCH_ECHO_TEST));
+
+    p_buf->hdr.event = BTA_HL_API_DCH_ECHO_TEST_EVT;
+    p_buf->mcl_handle = mcl_handle;
+    p_buf->ctrl_psm = p_echo_test_param->ctrl_psm;
+    p_buf->local_cfg = p_echo_test_param->local_cfg;
+    p_buf->pkt_size = p_echo_test_param->pkt_size;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_HlSdpQuery
+**
+** Description      SDP query request for the specified BD address
+**
+** Parameters       app_handle      - application handle
+**                  bd_addr         - BD address
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_HlSdpQuery(UINT8  app_id,tBTA_HL_APP_HANDLE app_handle,
+                    BD_ADDR bd_addr)
+{
+    tBTA_HL_API_SDP_QUERY *p_buf =
+        (tBTA_HL_API_SDP_QUERY *)osi_malloc(sizeof(tBTA_HL_API_SDP_QUERY));
+
+    p_buf->hdr.event = BTA_HL_API_SDP_QUERY_EVT;
+    p_buf->app_id = app_id;
+    p_buf->app_handle = app_handle;
+    bdcpy(p_buf->bd_addr, bd_addr);
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_HlDchCreateMdlRsp
+**
+** Description      Set the Response and configuration values for the Create MDL
+**                  request
+**
+** Parameters       mcl_handle  - MCL handle
+**                  p_rsp_param - parameters specified whether the request should
+**                                be accepted or not and if it should be accepted
+**                                then it also specified the configuration response
+**                                value
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_HlDchCreateRsp(tBTA_HL_MCL_HANDLE mcl_handle,
+                        tBTA_HL_DCH_CREATE_RSP_PARAM *p_rsp_param)
+{
+    tBTA_HL_API_DCH_CREATE_RSP *p_buf =
+        (tBTA_HL_API_DCH_CREATE_RSP *)osi_malloc(sizeof(tBTA_HL_API_DCH_CREATE_RSP));
+
+    p_buf->hdr.event = BTA_HL_API_DCH_CREATE_RSP_EVT;
+    p_buf->mcl_handle = mcl_handle;
+    p_buf->mdl_id = p_rsp_param->mdl_id;
+    p_buf->local_mdep_id = p_rsp_param->local_mdep_id;
+    p_buf->rsp_code = p_rsp_param->rsp_code;
+    p_buf->cfg_rsp = p_rsp_param->cfg_rsp;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+#endif /* HL_INCLUDED */
diff --git a/rtkbt/code/bt/bta/hl/bta_hl_ci.c b/rtkbt/code/bt/bta/hl/bta_hl_ci.c
new file mode 100755
index 0000000..9aaa963
--- /dev/null
+++ b/rtkbt/code/bt/bta/hl/bta_hl_ci.c
@@ -0,0 +1,168 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the implementation file for the HeaLth device profile (HL)
+ *  subsystem call-in functions.
+ *
+ ******************************************************************************/
+
+#include <stddef.h>
+#include "bta_api.h"
+#include "btm_api.h"
+#include "bta_sys.h"
+#include "bta_hl_api.h"
+#include "bta_hl_co.h"
+#include "bta_hl_int.h"
+
+/*******************************************************************************
+**
+** Function         bta_hl_ci_get_tx_data
+**
+** Description      This function is called in response to the
+**                  bta_hl_co_get_tx_data call-out function.
+**
+** Parameters       mdl_handle -MDL handle
+**                  status - BTA_MA_STATUS_OK if operation is successful
+**                           BTA_MA_STATUS_FAIL if any errors have occurred.
+**                  evt    - evt from the call-out function
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void bta_hl_ci_get_tx_data(  tBTA_HL_MDL_HANDLE mdl_handle,
+                                    tBTA_HL_STATUS status,
+                                    UINT16 evt )
+{
+    tBTA_HL_CI_GET_PUT_DATA *p_evt =
+        (tBTA_HL_CI_GET_PUT_DATA *)osi_malloc(sizeof(tBTA_HL_CI_GET_PUT_DATA));
+
+#if  (BTA_HL_DEBUG == TRUE)
+    APPL_TRACE_DEBUG("%s mdl_handle=%d status=%d evt=%d\n", __func__,
+                     mdl_handle, status, evt);
+#endif
+
+    p_evt->hdr.event = evt;
+    p_evt->mdl_handle = mdl_handle;
+    p_evt->status = status;
+
+    bta_sys_sendmsg(p_evt);
+}
+
+/*******************************************************************************
+**
+** Function         bta_hl_ci_put_rx_data
+**
+** Description      This function is called in response to the
+**                  bta_hl_co_put_rx_data call-out function.
+**
+** Parameters       mdl_handle -MDL handle
+**                  status - BTA_MA_STATUS_OK if operation is successful
+**                           BTA_MA_STATUS_FAIL if any errors have occurred.
+**                  evt    - evt from the call-out function
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void bta_hl_ci_put_rx_data(  tBTA_HL_MDL_HANDLE mdl_handle,
+                                    tBTA_HL_STATUS status,
+                                    UINT16 evt )
+{
+    tBTA_HL_CI_GET_PUT_DATA *p_evt =
+        (tBTA_HL_CI_GET_PUT_DATA *)osi_malloc(sizeof(tBTA_HL_CI_GET_PUT_DATA));
+
+#if  (BTA_HL_DEBUG == TRUE)
+    APPL_TRACE_DEBUG("%s mdl_handle=%d status=%d evt=%d\n", __func__,
+                     mdl_handle, status, evt);
+#endif
+
+    p_evt->hdr.event = evt;
+    p_evt->mdl_handle =  mdl_handle;
+    p_evt->status = status;
+
+    bta_sys_sendmsg(p_evt);
+}
+
+/*******************************************************************************
+**
+** Function         bta_hl_ci_get_echo_data
+**
+** Description      This function is called in response to the
+**                  bta_hl_co_get_echo_data call-out function.
+**
+** Parameters       mcl_handle -MCL handle
+**                  status - BTA_MA_STATUS_OK if operation is successful
+**                           BTA_MA_STATUS_FAIL if any errors have occurred.
+**                  evt    - evt from the call-out function
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void bta_hl_ci_get_echo_data(  tBTA_HL_MCL_HANDLE mcl_handle,
+                                      tBTA_HL_STATUS status,
+                                      UINT16 evt )
+{
+    tBTA_HL_CI_ECHO_DATA *p_evt =
+        (tBTA_HL_CI_ECHO_DATA *)osi_malloc(sizeof(tBTA_HL_CI_ECHO_DATA));
+
+#if  (BTA_HL_DEBUG == TRUE)
+    APPL_TRACE_DEBUG("%s mcl_handle=%d status=%d evt=%d\n", __func__,
+                     mcl_handle, status, evt);
+#endif
+
+    p_evt->hdr.event = evt;
+    p_evt->mcl_handle =  mcl_handle;
+    p_evt->status = status;
+
+    bta_sys_sendmsg(p_evt);
+}
+
+/*******************************************************************************
+**
+** Function         bta_hl_ci_put_echo_data
+**
+** Description      This function is called in response to the
+**                  bta_hl_co_put_echo_data call-out function.
+**
+** Parameters       mcl_handle -MCL handle
+**                  status - BTA_MA_STATUS_OK if operation is successful
+**                           BTA_MA_STATUS_FAIL if any errors have occurred.
+**                  evt    - evt from the call-out function
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void bta_hl_ci_put_echo_data(  tBTA_HL_MCL_HANDLE mcl_handle,
+                                      tBTA_HL_STATUS status,
+                                      UINT16 evt )
+{
+    tBTA_HL_CI_ECHO_DATA *p_evt =
+        (tBTA_HL_CI_ECHO_DATA *)osi_malloc(sizeof(tBTA_HL_CI_ECHO_DATA));
+
+#if  (BTA_HL_DEBUG == TRUE)
+    APPL_TRACE_DEBUG("%s mcl_handle=%d status=%d evt=%d\n", __func__,
+                      mcl_handle, status, evt);
+#endif
+
+    p_evt->hdr.event = evt;
+    p_evt->mcl_handle =  mcl_handle;
+    p_evt->status = status;
+
+    bta_sys_sendmsg(p_evt);
+}
diff --git a/rtkbt/code/bt/bta/hl/bta_hl_int.h b/rtkbt/code/bt/bta/hl/bta_hl_int.h
new file mode 100755
index 0000000..51cb7b0
--- /dev/null
+++ b/rtkbt/code/bt/bta/hl/bta_hl_int.h
@@ -0,0 +1,880 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1998-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the private file for the message access equipment (MSE)
+ *  subsystem.
+ *
+ ******************************************************************************/
+#ifndef BTA_HL_INT_H
+#define BTA_HL_INT_H
+
+#include "bt_target.h"
+#include "bta_sys.h"
+#include "bta_hl_api.h"
+#include "bta_hl_co.h"
+#include "l2cdefs.h"
+
+
+typedef UINT16 (tBTA_HL_ALLOCATE_PSM) (void);
+
+/*****************************************************************************
+**  Constants and data types
+*****************************************************************************/
+
+#ifndef BTA_HL_DISC_SIZE
+#define BTA_HL_DISC_SIZE                1600
+#endif
+#define BTA_HL_NUM_SRCH_ATTR            10
+#define BTA_HL_MIN_SDP_MDEP_LEN         7
+
+/* L2CAP defualt parameters */
+#define BTA_HL_L2C_TX_WIN_SIZE          10
+#define BTA_HL_L2C_MAX_TRANSMIT         32
+#define BTA_HL_L2C_RTRANS_TOUT          2000
+#define BTA_HL_L2C_MON_TOUT             12000
+#define BTA_HL_L2C_MPS                  1017
+
+/* L2CAP FCS setting*/
+#define BTA_HL_MCA_USE_FCS              MCA_FCS_USE
+#define BTA_HL_MCA_NO_FCS               MCA_FCS_BYPASS
+#define BTA_HL_L2C_USE_FCS              1
+#define BTA_HL_L2C_NO_FCS               0
+#define BTA_HL_DEFAULT_SOURCE_FCS       BTA_HL_L2C_USE_FCS
+#define BTA_HL_MCA_FCS_USE_MASK         MCA_FCS_USE_MASK
+
+/* SDP Operations */
+#define BTA_HL_SDP_OP_NONE                  0
+#define BTA_HL_SDP_OP_CCH_INIT              1
+#define BTA_HL_SDP_OP_DCH_OPEN_INIT         2
+#define BTA_HL_SDP_OP_DCH_RECONNECT_INIT    3
+#define BTA_HL_SDP_OP_SDP_QUERY_NEW         4
+#define BTA_HL_SDP_OP_SDP_QUERY_CURRENT     5
+
+typedef UINT8 tBTA_HL_SDP_OPER;
+
+/* CCH Operations */
+#define     BTA_HL_CCH_OP_NONE            0
+#define     BTA_HL_CCH_OP_LOCAL_OPEN      1
+#define     BTA_HL_CCH_OP_REMOTE_OPEN     2
+#define     BTA_HL_CCH_OP_LOCAL_CLOSE     3
+#define     BTA_HL_CCH_OP_REMOTE_CLOSE    4
+
+typedef UINT8 tBTA_HL_CCH_OPER;
+
+/* Pending DCH close operations when closing a CCH */
+#define    BTA_HL_CCH_CLOSE_OP_DCH_NONE     0
+#define    BTA_HL_CCH_CLOSE_OP_DCH_ABORT    1
+#define    BTA_HL_CCH_CLOSE_OP_DCH_CLOSE    2
+typedef UINT8 tBTA_HL_CCH_CLOSE_DCH_OPER;
+
+/* DCH Operations */
+#define    BTA_HL_DCH_OP_NONE                    0
+#define    BTA_HL_DCH_OP_REMOTE_CREATE           1
+#define    BTA_HL_DCH_OP_LOCAL_OPEN              2
+#define    BTA_HL_DCH_OP_REMOTE_OPEN             3
+#define    BTA_HL_DCH_OP_LOCAL_CLOSE             4
+#define    BTA_HL_DCH_OP_REMOTE_CLOSE            5
+#define    BTA_HL_DCH_OP_LOCAL_DELETE            6
+#define    BTA_HL_DCH_OP_REMOTE_DELETE           7
+#define    BTA_HL_DCH_OP_LOCAL_RECONNECT         8
+#define    BTA_HL_DCH_OP_REMOTE_RECONNECT        9
+#define    BTA_HL_DCH_OP_LOCAL_CLOSE_ECHO_TEST   10
+#define    BTA_HL_DCH_OP_LOCAL_CLOSE_RECONNECT   11
+
+typedef UINT8 tBTA_HL_DCH_OPER;
+
+/* Echo test Operations */
+#define    BTA_HL_ECHO_OP_NONE                 0
+#define    BTA_HL_ECHO_OP_CI_GET_ECHO_DATA     1
+#define    BTA_HL_ECHO_OP_SDP_INIT             2
+#define    BTA_HL_ECHO_OP_MDL_CREATE_CFM       3
+#define    BTA_HL_ECHO_OP_DCH_OPEN_CFM         4
+#define    BTA_HL_ECHO_OP_LOOP_BACK            5
+#define    BTA_HL_ECHO_OP_CI_PUT_ECHO_DATA     6
+#define    BTA_HL_ECHO_OP_DCH_CLOSE_CFM        7
+#define    BTA_HL_ECHO_OP_OPEN_IND             8
+#define    BTA_HL_ECHO_OP_ECHO_PKT             9
+
+typedef UINT8 tBTA_HL_ECHO_OPER;
+
+/* abort status mask for abort_oper */
+
+#define BTA_HL_ABORT_NONE_MASK      0x00
+#define BTA_HL_ABORT_PENDING_MASK   0x01
+#define BTA_HL_ABORT_LOCAL_MASK     0x10
+#define BTA_HL_ABORT_REMOTE_MASK    0x20
+#define BTA_HL_ABORT_CCH_CLOSE_MASK 0x40
+
+/* call out mask for cout_oper */
+#define BTA_HL_CO_NONE_MASK          0x00
+#define BTA_HL_CO_GET_TX_DATA_MASK   0x01
+#define BTA_HL_CO_PUT_RX_DATA_MASK   0x02
+#define BTA_HL_CO_GET_ECHO_DATA_MASK 0x04
+#define BTA_HL_CO_PUT_ECHO_DATA_MASK 0x08
+
+typedef struct
+{
+    UINT16      mtu;
+    UINT8       fcs;                    /* '0' No FCS, otherwise '1' */
+} tBTA_HL_L2CAP_CFG_INFO;
+
+
+/* State Machine Events */
+enum
+{
+    /* these events are handled by the state machine */
+    BTA_HL_CCH_OPEN_EVT     = BTA_SYS_EVT_START(BTA_ID_HL),
+    BTA_HL_CCH_SDP_OK_EVT,
+    BTA_HL_CCH_SDP_FAIL_EVT,
+    BTA_HL_MCA_CONNECT_IND_EVT,
+    BTA_HL_MCA_DISCONNECT_IND_EVT,
+    BTA_HL_CCH_CLOSE_EVT,
+    BTA_HL_CCH_CLOSE_CMPL_EVT,
+    BTA_HL_MCA_RSP_TOUT_IND_EVT,
+    /* DCH EVENT */
+    BTA_HL_DCH_SDP_INIT_EVT,
+    BTA_HL_DCH_OPEN_EVT,
+    BTA_HL_MCA_CREATE_IND_EVT,
+    BTA_HL_MCA_CREATE_CFM_EVT,
+    BTA_HL_MCA_OPEN_IND_EVT,
+
+    BTA_HL_MCA_OPEN_CFM_EVT,
+    BTA_HL_DCH_CLOSE_EVT,
+    BTA_HL_MCA_CLOSE_IND_EVT,
+    BTA_HL_MCA_CLOSE_CFM_EVT,
+    BTA_HL_API_SEND_DATA_EVT,
+
+    BTA_HL_MCA_RCV_DATA_EVT,
+    BTA_HL_DCH_CLOSE_CMPL_EVT,
+    BTA_HL_DCH_RECONNECT_EVT,
+    BTA_HL_DCH_SDP_FAIL_EVT,
+    BTA_HL_MCA_RECONNECT_IND_EVT,
+
+    BTA_HL_MCA_RECONNECT_CFM_EVT,
+    BTA_HL_DCH_CLOSE_ECHO_TEST_EVT,
+    BTA_HL_API_DCH_CREATE_RSP_EVT,
+    BTA_HL_DCH_ABORT_EVT,
+    BTA_HL_MCA_ABORT_IND_EVT,
+
+    BTA_HL_MCA_ABORT_CFM_EVT,
+    BTA_HL_MCA_CONG_CHG_EVT,
+    BTA_HL_CI_GET_TX_DATA_EVT,
+    BTA_HL_CI_PUT_RX_DATA_EVT,
+    BTA_HL_CI_GET_ECHO_DATA_EVT,
+    BTA_HL_DCH_ECHO_TEST_EVT,
+    BTA_HL_CI_PUT_ECHO_DATA_EVT,
+
+    /* these events are handled outside the state machine */
+    BTA_HL_API_ENABLE_EVT,
+    BTA_HL_API_DISABLE_EVT,
+    BTA_HL_API_UPDATE_EVT,
+    BTA_HL_API_REGISTER_EVT,
+    BTA_HL_API_DEREGISTER_EVT,
+    BTA_HL_API_CCH_OPEN_EVT,
+    BTA_HL_API_CCH_CLOSE_EVT,
+    BTA_HL_API_DCH_OPEN_EVT,
+    BTA_HL_API_DCH_RECONNECT_EVT,
+    BTA_HL_API_DCH_CLOSE_EVT,
+    BTA_HL_API_DELETE_MDL_EVT,
+    BTA_HL_API_DCH_ABORT_EVT,
+
+    BTA_HL_API_DCH_ECHO_TEST_EVT,
+    BTA_HL_API_SDP_QUERY_EVT,
+    BTA_HL_SDP_QUERY_OK_EVT,
+    BTA_HL_SDP_QUERY_FAIL_EVT,
+    BTA_HL_MCA_DELETE_IND_EVT,
+    BTA_HL_MCA_DELETE_CFM_EVT
+};
+typedef UINT16 tBTA_HL_INT_EVT;
+
+#define BTA_HL_DCH_EVT_MIN BTA_HL_DCH_SDP_INIT_EVT
+#define BTA_HL_DCH_EVT_MAX 0xFFFF
+
+
+/* state machine states */
+enum
+{
+    BTA_HL_CCH_IDLE_ST = 0,      /* Idle  */
+    BTA_HL_CCH_OPENING_ST,       /* Opening a connection*/
+    BTA_HL_CCH_OPEN_ST,          /* Connection is open */
+    BTA_HL_CCH_CLOSING_ST        /* Closing is in progress */
+};
+typedef UINT8 tBTA_HL_CCH_STATE;
+
+enum
+{
+    BTA_HL_DCH_IDLE_ST = 0,      /* Idle  */
+    BTA_HL_DCH_OPENING_ST,       /* Opening a connection*/
+    BTA_HL_DCH_OPEN_ST,          /* Connection is open */
+    BTA_HL_DCH_CLOSING_ST        /* Closing is in progress */
+};
+typedef UINT8 tBTA_HL_DCH_STATE;
+
+
+typedef struct
+{
+    BT_HDR              hdr;
+    tBTA_HL_CTRL_CBACK  *p_cback;        /* pointer to control callback function */
+} tBTA_HL_API_ENABLE;
+
+typedef struct
+{
+    BT_HDR              hdr;
+    UINT8               app_id;
+    BOOLEAN             is_register;        /* Update HL application due to register or deregister */
+    tBTA_HL_CBACK       *p_cback;           /* pointer to application callback function */
+    tBTA_HL_DEVICE_TYPE dev_type;           /* sink, source or dual roles */
+    tBTA_SEC            sec_mask;           /* security mask for accepting conenction*/
+    char                srv_name[BTA_SERVICE_NAME_LEN +1];        /* service name to be used in the SDP; null terminated*/
+    char                srv_desp[BTA_SERVICE_DESP_LEN +1];        /* service description to be used in the SDP; null terminated */
+    char                provider_name[BTA_PROVIDER_NAME_LEN +1];   /* provide name to be used in the SDP; null terminated */
+
+} tBTA_HL_API_UPDATE;
+
+typedef struct
+{
+    BT_HDR              hdr;
+    UINT8               app_id;
+    tBTA_HL_CBACK       *p_cback;        /* pointer to application callback function */
+    tBTA_HL_DEVICE_TYPE dev_type;           /* sink, source or dual roles */
+    tBTA_SEC            sec_mask;           /* security mask for accepting conenction*/
+    char                srv_name[BTA_SERVICE_NAME_LEN +1];        /* service name to be used in the SDP; null terminated*/
+    char                srv_desp[BTA_SERVICE_DESP_LEN +1];        /* service description to be used in the SDP; null terminated */
+    char                provider_name[BTA_PROVIDER_NAME_LEN +1];   /* provide name to be used in the SDP; null terminated */
+} tBTA_HL_API_REGISTER;
+
+typedef struct
+{
+    BT_HDR                  hdr;
+    UINT8                   app_id;
+    tBTA_HL_CBACK           *p_cback;        /* pointer to application callback function */
+    tBTA_HL_APP_HANDLE      app_handle;
+} tBTA_HL_API_DEREGISTER;
+
+typedef struct
+{
+    BT_HDR                  hdr;
+    UINT8                   app_id;
+    tBTA_HL_APP_HANDLE      app_handle;
+    UINT16                  ctrl_psm;
+    BD_ADDR                 bd_addr;        /* Address of peer device */
+    tBTA_SEC                sec_mask;       /* security mask for initiating connection*/
+} tBTA_HL_API_CCH_OPEN;
+
+
+typedef struct
+{
+    BT_HDR                  hdr;
+    tBTA_HL_MCL_HANDLE      mcl_handle;
+} tBTA_HL_API_CCH_CLOSE;
+
+
+
+typedef struct
+{
+    BT_HDR                  hdr;
+    tBTA_HL_MCL_HANDLE      mcl_handle;
+    UINT16                  ctrl_psm;
+    tBTA_HL_MDEP_ID         local_mdep_id;     /* local MDEP ID */
+    tBTA_HL_MDEP_ID         peer_mdep_id;      /* peer mdep id */
+    tBTA_HL_DCH_CFG         local_cfg;
+    tBTA_SEC                sec_mask;          /* security mask for initiating connection*/
+} tBTA_HL_API_DCH_OPEN;
+
+
+typedef struct
+{
+    BT_HDR                  hdr;
+
+    tBTA_HL_MCL_HANDLE      mcl_handle;
+    UINT16                  ctrl_psm;
+    tBTA_HL_MDL_ID          mdl_id;
+} tBTA_HL_API_DCH_RECONNECT;
+
+typedef struct
+{
+    BT_HDR                  hdr;
+    tBTA_HL_MDL_HANDLE      mdl_handle;
+} tBTA_HL_API_DCH_CLOSE;
+
+typedef struct
+{
+    BT_HDR                  hdr;
+    tBTA_HL_MCL_HANDLE      mcl_handle;
+    tBTA_HL_MDL_ID          mdl_id;
+} tBTA_HL_API_DELETE_MDL;
+
+typedef struct
+{
+    BT_HDR              hdr;
+    tBTA_HL_MCL_HANDLE mcl_handle;
+} tBTA_HL_API_DCH_ABORT;
+
+
+typedef struct
+{
+    BT_HDR              hdr;
+    tBTA_HL_MDL_HANDLE  mdl_handle;
+    UINT16              pkt_size;
+} tBTA_HL_API_SEND_DATA;
+
+typedef struct
+{
+    BT_HDR              hdr;
+    tBTA_HL_MCL_HANDLE  mcl_handle;
+    UINT16              ctrl_psm;
+    UINT16              pkt_size;
+    tBTA_HL_DCH_CFG     local_cfg;
+} tBTA_HL_API_DCH_ECHO_TEST;
+
+typedef struct
+{
+    BT_HDR                  hdr;
+    UINT8                   app_idx;
+    UINT8                   mcl_idx;
+    BOOLEAN                 release_mcl_cb;
+}tBTA_HL_CCH_SDP;
+
+
+/* MCA callback event parameters. */
+typedef struct
+{
+    BT_HDR              hdr;
+    tBTA_HL_APP_HANDLE  app_handle;
+    tBTA_HL_MCL_HANDLE  mcl_handle;
+    tMCA_CTRL       mca_data;
+} tBTA_HL_MCA_EVT;
+
+
+/* MCA callback event parameters. */
+typedef struct
+{
+    BT_HDR          hdr;
+    UINT8           app_idx;
+    UINT8           mcl_idx;
+    UINT8           mdl_idx;
+    BT_HDR          *p_pkt;
+} tBTA_HL_MCA_RCV_DATA_EVT;
+
+
+typedef struct
+{
+    BT_HDR                  hdr;
+    UINT8                   app_idx;
+    UINT8                   mcl_idx;
+    UINT8                   mdl_idx;
+}tBTA_HL_DCH_SDP;
+
+typedef struct
+{
+    BT_HDR                  hdr;
+    tBTA_HL_APP_HANDLE      app_handle;
+    UINT8                   app_id;
+    BD_ADDR                 bd_addr;        /* Address of peer device */
+} tBTA_HL_API_SDP_QUERY;
+
+typedef struct
+{
+    BT_HDR                  hdr;
+    tBTA_HL_MCL_HANDLE      mcl_handle;
+    tBTA_HL_MDL_ID          mdl_id;
+    tBTA_HL_MDEP_ID         local_mdep_id;
+    tBTA_HL_DCH_CREATE_RSP  rsp_code;
+    tBTA_HL_DCH_CFG         cfg_rsp;
+} tBTA_HL_API_DCH_CREATE_RSP;
+
+typedef struct
+{
+    BT_HDR                  hdr;
+    tBTA_HL_MDL_HANDLE      mdl_handle;
+    tBTA_HL_STATUS          status;
+} tBTA_HL_CI_GET_PUT_DATA;
+
+typedef struct
+{
+    BT_HDR                  hdr;
+    tBTA_HL_MCL_HANDLE      mcl_handle;
+    tBTA_HL_STATUS          status;
+} tBTA_HL_CI_ECHO_DATA;
+
+/* union of all state machine event data types */
+typedef union
+{
+    BT_HDR                      hdr;
+    tBTA_HL_API_ENABLE          api_enable; /* data for BTA_MSE_API_ENABLE_EVT */
+    tBTA_HL_API_UPDATE          api_update;
+    tBTA_HL_API_REGISTER        api_reg;
+    tBTA_HL_API_DEREGISTER      api_dereg;
+    tBTA_HL_API_CCH_OPEN        api_cch_open;
+    tBTA_HL_API_CCH_CLOSE       api_cch_close;
+    tBTA_HL_API_DCH_CREATE_RSP  api_dch_create_rsp;
+    tBTA_HL_API_DCH_OPEN        api_dch_open;
+    tBTA_HL_API_DCH_RECONNECT   api_dch_reconnect;
+    tBTA_HL_API_DCH_CLOSE       api_dch_close;
+    tBTA_HL_API_DELETE_MDL      api_delete_mdl;
+    tBTA_HL_API_DCH_ABORT       api_dch_abort;
+    tBTA_HL_API_SEND_DATA       api_send_data;
+    tBTA_HL_API_DCH_ECHO_TEST   api_dch_echo_test;
+    tBTA_HL_API_SDP_QUERY       api_sdp_query;
+
+    tBTA_HL_CCH_SDP             cch_sdp;
+    tBTA_HL_MCA_EVT             mca_evt;
+    tBTA_HL_MCA_RCV_DATA_EVT    mca_rcv_data_evt;
+    tBTA_HL_DCH_SDP             dch_sdp; /* for DCH_OPEN_EVT and DCH_RECONNECT_EVT */
+    tBTA_HL_CI_GET_PUT_DATA     ci_get_put_data;
+    tBTA_HL_CI_ECHO_DATA        ci_get_put_echo_data;
+} tBTA_HL_DATA;
+
+
+typedef struct
+{
+    BOOLEAN                 in_use;
+    UINT16                  mdl_id;
+    tBTA_HL_MDL_HANDLE      mdl_handle;
+    tBTA_HL_DCH_OPER        dch_oper;
+    BOOLEAN                 intentional_close;
+    tBTA_HL_DCH_STATE       dch_state;
+    UINT8                   abort_oper;
+    UINT16                  req_data_psm;
+    UINT16                  max_rx_apdu_size;
+    UINT16                  max_tx_apdu_size;
+    BT_HDR                  *p_tx_pkt;
+    BT_HDR                  *p_rx_pkt;
+    tBTA_HL_MDEP_ID         local_mdep_id;
+    UINT8                   local_mdep_cfg_idx;
+    tBTA_HL_DCH_CFG         local_cfg;
+    tBTA_HL_DCH_CFG         remote_cfg;
+    tBTA_HL_MDEP_ID         peer_mdep_id;
+    UINT16  peer_data_type;
+    tBTA_HL_MDEP_ROLE       peer_mdep_role;
+    tBTA_HL_DCH_MODE        dch_mode;
+    tBTA_SEC                sec_mask;
+    BOOLEAN                 is_the_first_reliable;
+    BOOLEAN                 delete_mdl;
+    UINT16                  mtu;
+    tMCA_CHNL_CFG           chnl_cfg;
+    BOOLEAN                 mdl_cfg_idx_included;
+    UINT8                   mdl_cfg_idx;
+    UINT8                   echo_oper;
+    BOOLEAN                 cong;
+    BOOLEAN                 close_pending;
+    UINT8                   cout_oper;
+    BT_HDR                  *p_echo_tx_pkt;
+    BT_HDR                  *p_echo_rx_pkt;
+    tBTA_HL_STATUS          ci_put_echo_data_status;
+}tBTA_HL_MDL_CB;
+
+typedef struct
+{
+    tBTA_HL_MDL_CB          mdl[BTA_HL_NUM_MDLS_PER_MCL];
+    tBTA_HL_DELETE_MDL      delete_mdl;
+    BOOLEAN                 in_use;
+    tBTA_HL_CCH_STATE       cch_state;
+    UINT16                  req_ctrl_psm;
+    UINT16                  ctrl_psm;
+    UINT16                  data_psm;
+    BD_ADDR                 bd_addr;
+    UINT16                  cch_mtu;
+    UINT16                  sec_mask;
+    tBTA_HL_MCL_HANDLE      mcl_handle;
+    tSDP_DISCOVERY_DB       *p_db;         /* pointer to discovery database */
+    tSDP_DISC_CMPL_CB       *sdp_cback;
+    tBTA_HL_SDP_OPER        sdp_oper;
+    BOOLEAN                 close_pending;
+    UINT8                   sdp_mdl_idx;
+    tBTA_HL_SDP             sdp;
+    UINT8                   cch_oper;
+    UINT8                   force_close_local_cch_opening;
+    BOOLEAN                 intentional_close;
+    BOOLEAN                 rsp_tout;
+    UINT8                   timer_oper;
+    BOOLEAN                 echo_test;
+    UINT8                   echo_mdl_idx;
+    UINT8                   cch_close_dch_oper;
+    UINT8                   app_id;
+}tBTA_HL_MCL_CB;
+
+typedef struct
+{
+    tBTA_HL_MCL_CB       mcb[BTA_HL_NUM_MCLS]; /* application Control Blocks */
+    tBTA_HL_CBACK        *p_cback;            /* pointer to control callback function */
+    BOOLEAN              in_use;              /* this CB is in use*/
+    BOOLEAN              deregistering;
+    UINT8                app_id;
+    UINT32               sdp_handle;    /* SDP record handle */
+    tBTA_HL_SUP_FEATURE  sup_feature;
+    tBTA_HL_MDL_CFG      mdl_cfg[BTA_HL_NUM_MDL_CFGS];
+    tBTA_HL_DEVICE_TYPE  dev_type;
+    tBTA_HL_APP_HANDLE   app_handle;
+    UINT16               ctrl_psm;   /* L2CAP PSM for the MCAP control channel */
+    UINT16               data_psm;   /* L2CAP PSM for the MCAP data channel */
+    UINT16               sec_mask;   /* Security mask for BTM_SetSecurityLevel() */
+
+    char                 srv_name[BTA_SERVICE_NAME_LEN +1];        /* service name to be used in the SDP; null terminated*/
+    char                 srv_desp[BTA_SERVICE_DESP_LEN +1];        /* service description to be used in the SDP; null terminated */
+    char                 provider_name[BTA_PROVIDER_NAME_LEN +1];   /* provide name to be used in the SDP; null terminated */
+
+    tMCA_CTRL_CBACK      *p_mcap_cback;            /* pointer to MCAP callback function */
+    tMCA_DATA_CBACK      *p_data_cback;
+}tBTA_HL_APP_CB;
+
+
+typedef struct
+{
+    BOOLEAN             in_use;
+    tBTA_HL_SDP_OPER    sdp_oper;
+    UINT8               app_idx;
+    UINT8               mcl_idx;
+    UINT8               mdl_idx;
+}tBTA_HL_SDP_CB;
+
+typedef struct
+{
+    BOOLEAN         in_use;
+    UINT8           app_idx;
+    UINT8           mcl_idx;
+}tBTA_HL_TIMER_CB;
+
+typedef struct
+{
+    tBTA_HL_APP_CB        acb[BTA_HL_NUM_APPS];      /* HL Control Blocks */
+    tBTA_HL_CTRL_CBACK    *p_ctrl_cback;            /* pointer to control callback function */
+    BOOLEAN               enable;
+    BOOLEAN               disabling;
+
+    tBTA_HL_SDP_CB        scb[BTA_HL_NUM_SDP_CBACKS];
+    tBTA_HL_TIMER_CB      tcb[BTA_HL_NUM_TIMERS];
+    BOOLEAN               enable_random_psm;
+    tBTA_HL_ALLOCATE_PSM  *p_alloc_psm;
+}tBTA_HL_CB;
+
+/******************************************************************************
+**  Configuration Definitions
+*******************************************************************************/
+/* Configuration structure */
+
+/*****************************************************************************
+**  Global data
+*****************************************************************************/
+
+/* HL control block */
+#if BTA_DYNAMIC_MEMORY == FALSE
+extern tBTA_HL_CB  bta_hl_cb;
+#else
+extern tBTA_HL_CB *bta_hl_cb_ptr;
+    #define bta_hl_cb (*bta_hl_cb_ptr)
+#endif
+
+#define BTA_HL_GET_CB_PTR() &(bta_hl_cb)
+#define BTA_HL_GET_APP_CB_PTR(app_idx) &(bta_hl_cb.acb[(app_idx)])
+#define BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx) &(bta_hl_cb.acb[(app_idx)].mcb[(mcl_idx)])
+#define BTA_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx) &(bta_hl_cb.acb[(app_idx)].mcb[(mcl_idx)].mdl[mdl_idx])
+#define BTA_HL_GET_MDL_CFG_PTR(app_idx, item_idx) &(bta_hl_cb.acb[(app_idx)].mdl_cfg[(item_idx)])
+#define BTA_HL_GET_ECHO_CFG_PTR(app_idx)  &(bta_hl_cb.acb[(app_idx)].sup_feature.echo_cfg)
+#define BTA_HL_GET_MDEP_CFG_PTR(app_idx, mdep_cfg_idx)  &(bta_hl_cb.acb[(app_idx)].sup_feature.mdep[mdep_cfg_idx].mdep_cfg)
+#define BTA_HL_GET_DATA_CFG_PTR(app_idx, mdep_cfg_idx, data_cfg_idx)  \
+           &(bta_hl_cb.acb[(app_idx)].sup_feature.mdep[mdep_cfg_idx].mdep_cfg.data_cfg[data_cfg_idx])
+#define BTA_HL_GET_BUF_PTR(p_pkt) ((UINT8 *)((UINT8 *) (p_pkt+1) + p_pkt->offset))
+
+/*****************************************************************************
+**  Function prototypes
+*****************************************************************************/
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+    /* main */
+    extern BOOLEAN bta_hl_hdl_event(BT_HDR *p_msg);
+    /* sdp */
+    extern BOOLEAN bta_hl_fill_sup_feature_list( const tSDP_DISC_ATTR  *p_attr,
+                                                 tBTA_HL_SUP_FEATURE_LIST_ELEM *p_list);
+    extern tBTA_HL_STATUS bta_hl_sdp_update (UINT8 app_id);
+    extern tBTA_HL_STATUS bta_hl_sdp_register (UINT8 app_idx);
+    extern tSDP_DISC_REC *bta_hl_find_sink_or_src_srv_class_in_db (const tSDP_DISCOVERY_DB *p_db,
+                                                                   const tSDP_DISC_REC *p_start_rec);
+
+    /* action routines */
+    extern void bta_hl_dch_ci_get_tx_data(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx,
+                                          tBTA_HL_DATA *p_data);
+    extern void bta_hl_dch_ci_put_rx_data(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx,
+                                          tBTA_HL_DATA *p_data);
+    extern void bta_hl_dch_ci_get_echo_data(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx,
+                                            tBTA_HL_DATA *p_data);
+
+    extern void bta_hl_dch_echo_test(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx,
+                                     tBTA_HL_DATA *p_data);
+    extern void bta_hl_dch_ci_put_echo_data(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx,
+                                            tBTA_HL_DATA *p_data);
+    extern void bta_hl_dch_send_data(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx,
+                                     tBTA_HL_DATA *p_data);
+    extern void bta_hl_dch_sdp_fail(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx,
+                                    tBTA_HL_DATA *p_data);
+    extern void bta_hl_dch_mca_cong_change(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx,
+                                           tBTA_HL_DATA *p_data);
+    extern void bta_hl_dch_mca_reconnect_ind(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx,
+                                             tBTA_HL_DATA *p_data);
+    extern void bta_hl_dch_mca_reconnect_cfm(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx,
+                                             tBTA_HL_DATA *p_data);
+    extern void bta_hl_dch_mca_reconnect(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx,
+                                         tBTA_HL_DATA *p_data);
+    extern void bta_hl_dch_sdp_init(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx,
+                                    tBTA_HL_DATA *p_data);
+    extern void bta_hl_dch_close_echo_test(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx,
+                                           tBTA_HL_DATA *p_data);
+    extern void bta_hl_dch_create_rsp(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx,
+                                      tBTA_HL_DATA *p_data);
+    extern void bta_hl_dch_mca_rcv_data(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx,
+                                        tBTA_HL_DATA *p_data);
+    extern void bta_hl_dch_close_cmpl(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx,
+                                      tBTA_HL_DATA *p_data);
+    extern void bta_hl_dch_mca_close_cfm(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx,
+                                         tBTA_HL_DATA *p_data);
+    extern void bta_hl_dch_mca_close_ind(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx,
+                                         tBTA_HL_DATA *p_data);
+    extern void bta_hl_dch_mca_close(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx,
+                                     tBTA_HL_DATA *p_data);
+    extern void bta_hl_dch_mca_delete_ind(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx,
+                                          tBTA_HL_DATA *p_data);
+
+    extern void bta_hl_dch_mca_delete_cfm(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx,
+                                          tBTA_HL_DATA *p_data);
+    extern void bta_hl_dch_mca_delete(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx,
+                                      tBTA_HL_DATA *p_data);
+    extern void bta_hl_dch_mca_abort_ind(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx,
+                                         tBTA_HL_DATA *p_data);
+    extern void bta_hl_dch_mca_abort_cfm(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx,
+                                         tBTA_HL_DATA *p_data);
+    extern void bta_hl_dch_mca_abort(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx,
+                                     tBTA_HL_DATA *p_data);
+    extern void bta_hl_dch_mca_open_ind(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx,
+                                        tBTA_HL_DATA *p_data);
+    extern void bta_hl_dch_mca_open_cfm(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx,
+                                        tBTA_HL_DATA *p_data);
+    extern void bta_hl_dch_mca_create_ind(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx,
+                                          tBTA_HL_DATA *p_data);
+    extern void bta_hl_dch_mca_create_cfm(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx,
+                                          tBTA_HL_DATA *p_data);
+    extern void bta_hl_dch_mca_create(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx,
+                                      tBTA_HL_DATA *p_data);
+    extern void bta_hl_deallocate_spd_cback(UINT8 sdp_cback_idx);
+    extern tSDP_DISC_CMPL_CB *bta_hl_allocate_spd_cback(tBTA_HL_SDP_OPER sdp_oper, UINT8 app_idx, UINT8 mcl_idx,
+                                                        UINT8 mdl_idx,
+                                                        UINT8 *p_sdp_cback_idx);
+    extern tBTA_HL_STATUS bta_hl_init_sdp(tBTA_HL_SDP_OPER sdp_oper, UINT8 app_idx, UINT8 mcl_idx,
+                                          UINT8 mdl_idx);
+    extern void bta_hl_cch_sdp_init(UINT8 app_idx, UINT8 mcl_idx,  tBTA_HL_DATA *p_data);
+    extern void bta_hl_cch_mca_open(UINT8 app_idx, UINT8 mcl_idx,  tBTA_HL_DATA *p_data);
+    extern void bta_hl_cch_mca_close(UINT8 app_idx, UINT8 mcl_idx,  tBTA_HL_DATA *p_data);
+    extern void bta_hl_cch_close_cmpl(UINT8 app_idx, UINT8 mcl_idx,  tBTA_HL_DATA *p_data);
+    extern void bta_hl_cch_mca_disconnect(UINT8 app_idx, UINT8 mcl_idx,  tBTA_HL_DATA *p_data);
+    extern void bta_hl_cch_mca_disc_open(UINT8 app_idx, UINT8 mcl_idx,  tBTA_HL_DATA *p_data);
+    extern void bta_hl_cch_mca_rsp_tout(UINT8 app_idx, UINT8 mcl_idx,  tBTA_HL_DATA *p_data);
+    extern void bta_hl_cch_mca_connect(UINT8 app_idx, UINT8 mcl_idx,  tBTA_HL_DATA *p_data);
+
+    /* State machine drivers  */
+    extern void bta_hl_cch_sm_execute(UINT8 inst_idx, UINT8 mcl_idx,
+                                      UINT16 event, tBTA_HL_DATA *p_data);
+    extern void bta_hl_dch_sm_execute(UINT8 inst_idx, UINT8 mcl_idx, UINT8 mdl_idx,
+                                      UINT16 event, tBTA_HL_DATA *p_data);
+    /* MCAP callback functions  */
+    extern void bta_hl_mcap_ctrl_cback(tMCA_HANDLE handle, tMCA_CL mcl, UINT8 event,
+                                       tMCA_CTRL *p_data);
+
+    extern void bta_hl_mcap_data_cback(tMCA_DL mdl, BT_HDR *p_pkt);
+
+    /* utility functions  */
+    extern BOOLEAN bta_hl_set_ctrl_psm_for_dch(UINT8 app_idx, UINT8 mcl_idx,
+                                               UINT8 mdl_idx, UINT16 ctrl_psm);
+    extern BOOLEAN bta_hl_find_sdp_idx_using_ctrl_psm(tBTA_HL_SDP *p_sdp,
+                                                      UINT16 ctrl_psm,
+                                                      UINT8 *p_sdp_idx);
+    extern UINT16 bta_hl_set_user_tx_buf_size(UINT16 max_tx_size);
+    extern UINT16 bta_hl_set_user_rx_buf_size(UINT16 mtu);
+    extern UINT8 bta_hl_set_tx_win_size(UINT16 mtu, UINT16 mps);
+    extern UINT16 bta_hl_set_mps(UINT16 mtu);
+    extern void bta_hl_clean_mdl_cb(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx);
+    extern BT_HDR * bta_hl_get_buf(UINT16 data_size, BOOLEAN fcs_use);
+    extern BOOLEAN bta_hl_find_service_in_db( UINT8 app_idx, UINT8 mcl_idx,
+                                              UINT16 service_uuid,
+                                              tSDP_DISC_REC **pp_rec );
+    extern UINT16 bta_hl_get_service_uuids(UINT8 sdp_oper, UINT8 app_idx, UINT8 mcl_idx,
+                                           UINT8 mdl_idx );
+    extern BOOLEAN bta_hl_find_echo_cfg_rsp(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdep_idx, UINT8 cfg,
+                                            UINT8 *p_cfg_rsp);
+    extern BOOLEAN bta_hl_validate_cfg(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx,
+                                       UINT8 cfg);
+    extern BOOLEAN bta_hl_find_cch_cb_indexes(tBTA_HL_DATA *p_msg,
+                                              UINT8 *p_app_idx,
+                                              UINT8  *p_mcl_idx);
+    extern BOOLEAN bta_hl_find_dch_cb_indexes(tBTA_HL_DATA *p_msg,
+                                              UINT8 *p_app_idx,
+                                              UINT8 *p_mcl_idx,
+                                              UINT8 *p_mdl_idx);
+    extern UINT16  bta_hl_allocate_mdl_id(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx );
+    extern BOOLEAN bta_hl_find_mdl_idx_using_handle(tBTA_HL_MDL_HANDLE mdl_handle,
+                                                    UINT8 *p_app_idx, UINT8 *p_mcl_idx,
+                                                    UINT8 *p_mdl_idx);
+    extern BOOLEAN bta_hl_find_mdl_idx(UINT8 app_idx, UINT8 mcl_idx, UINT16 mdl_id,
+                                       UINT8 *p_mdl_idx);
+    extern BOOLEAN bta_hl_find_an_active_mdl_idx(UINT8 app_idx, UINT8 mcl_idx,
+                                                 UINT8 *p_mdl_idx);
+    extern BOOLEAN bta_hl_find_dch_setup_mdl_idx(UINT8 app_idx, UINT8 mcl_idx,
+                                                 UINT8 *p_mdl_idx);
+    extern BOOLEAN bta_hl_find_an_in_use_mcl_idx(UINT8 app_idx,
+                                                 UINT8 *p_mcl_idx);
+    extern BOOLEAN bta_hl_find_an_in_use_app_idx(UINT8 *p_app_idx);
+    extern BOOLEAN bta_hl_find_app_idx(UINT8 app_id, UINT8 *p_app_idx);
+    extern BOOLEAN bta_hl_find_app_idx_using_handle(tBTA_HL_APP_HANDLE app_handle,
+                                                    UINT8 *p_app_idx);
+    extern BOOLEAN bta_hl_find_mcl_idx_using_handle( tBTA_HL_MCL_HANDLE mcl_handle,
+                                                     UINT8 *p_app_idx, UINT8 *p_mcl_idx);
+    extern BOOLEAN bta_hl_find_mcl_idx(UINT8 app_idx, BD_ADDR p_bd_addr, UINT8 *p_mcl_idx);
+    extern BOOLEAN bta_hl_is_the_first_reliable_existed(UINT8 app_idx, UINT8 mcl_idx );
+    extern BOOLEAN  bta_hl_find_non_active_mdl_cfg(UINT8 app_idx, UINT8 start_mdl_cfg_idx,
+                                                   UINT8 *p_mdl_cfg_idx);
+    extern BOOLEAN  bta_hl_find_avail_mdl_cfg_idx(UINT8 app_idx, UINT8 mcl_idx,
+                                                  UINT8 *p_mdl_cfg_idx);
+    extern BOOLEAN  bta_hl_find_mdl_cfg_idx(UINT8 app_idx, UINT8 mcl_idx,
+                                            tBTA_HL_MDL_ID mdl_id, UINT8 *p_mdl_cfg_idx);
+    extern BOOLEAN  bta_hl_get_cur_time(UINT8 app_idx, UINT8 *p_cur_time);
+    extern void bta_hl_sort_cfg_time_idx(UINT8 app_idx, UINT8 *a, UINT8 n);
+    extern void  bta_hl_compact_mdl_cfg_time(UINT8 app_idx, UINT8 mdep_id);
+    extern BOOLEAN  bta_hl_is_mdl_exsit_in_mcl(UINT8 app_idx, BD_ADDR bd_addr,
+                                               tBTA_HL_MDL_ID mdl_id);
+    extern BOOLEAN  bta_hl_delete_mdl_cfg(UINT8 app_idx, BD_ADDR bd_addr,
+                                          tBTA_HL_MDL_ID mdl_id);
+    extern BOOLEAN  bta_hl_is_mdl_value_valid(tBTA_HL_MDL_ID mdl_id);
+    extern BOOLEAN bta_hl_find_mdep_cfg_idx(UINT8 app_idx,
+                                            tBTA_HL_MDEP_ID local_mdep_id, UINT8 *p_mdep_cfg_idx);
+    extern void bta_hl_find_rxtx_apdu_size(UINT8 app_idx, UINT8 mdep_cfg_idx,
+                                           UINT16 *p_rx_apu_size,
+                                           UINT16 *p_tx_apu_size);
+    extern BOOLEAN bta_hl_validate_peer_cfg(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx,
+                                            tBTA_HL_MDEP_ID peer_mdep_id,
+                                            tBTA_HL_MDEP_ROLE peer_mdep_role,
+                                            UINT8 sdp_idx);
+    extern tBTA_HL_STATUS bta_hl_chk_local_cfg(UINT8 app_idx, UINT8 mcl_idx,
+                                               UINT8 mdep_cfg_idx,
+                                               tBTA_HL_DCH_CFG local_cfg);
+
+    extern BOOLEAN bta_hl_validate_reconnect_params(UINT8 app_idx, UINT8 mcl_idx,
+                                                    tBTA_HL_API_DCH_RECONNECT *p_reconnect,
+                                                    UINT8 *p_mdep_cfg_idx, UINT8 *p_mdl_cfg_idx);
+    extern BOOLEAN bta_hl_find_avail_mcl_idx(UINT8 app_idx, UINT8 *p_mcl_idx);
+    extern BOOLEAN bta_hl_find_avail_mdl_idx(UINT8 app_idx, UINT8 mcl_idx,
+                                             UINT8 *p_mdl_idx);
+    extern BOOLEAN bta_hl_is_a_duplicate_id(UINT8 app_id);
+    extern BOOLEAN bta_hl_find_avail_app_idx(UINT8 *p_idx);
+    extern tBTA_HL_STATUS bta_hl_app_update(UINT8 app_id, BOOLEAN is_register);
+    extern tBTA_HL_STATUS bta_hl_app_registration(UINT8 app_idx);
+    extern void bta_hl_discard_data(UINT16 event, tBTA_HL_DATA *p_data);
+    extern void bta_hl_save_mdl_cfg(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx );
+    extern void bta_hl_set_dch_chan_cfg(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx, tBTA_HL_DATA *p_data);
+    extern BOOLEAN bta_hl_get_l2cap_cfg(tBTA_HL_MDL_HANDLE mdl_hnd, tBTA_HL_L2CAP_CFG_INFO *p_cfg);
+    extern BOOLEAN bta_hl_validate_chan_cfg(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx);
+    extern BOOLEAN bta_hl_is_cong_on(UINT8 app_id, BD_ADDR bd_addr, tBTA_HL_MDL_ID mdl_id);
+    extern void bta_hl_check_cch_close(UINT8 app_idx, UINT8 mcl_idx,
+                                       tBTA_HL_DATA *p_data, BOOLEAN check_dch_setup);
+    extern void bta_hl_clean_app(UINT8 app_idx);
+    extern void bta_hl_check_deregistration(UINT8 app_idx, tBTA_HL_DATA *p_data );
+    extern void bta_hl_check_disable(tBTA_HL_DATA *p_data );
+    extern void  bta_hl_build_abort_ind(tBTA_HL *p_evt_data,
+                                        tBTA_HL_APP_HANDLE app_handle,
+                                        tBTA_HL_MCL_HANDLE mcl_handle);
+    extern void  bta_hl_build_abort_cfm(tBTA_HL *p_evt_data,
+                                        tBTA_HL_APP_HANDLE app_handle,
+                                        tBTA_HL_MCL_HANDLE mcl_handle,
+                                        tBTA_HL_STATUS status);
+    extern void  bta_hl_build_dch_close_cfm(tBTA_HL *p_evt_data,
+                                            tBTA_HL_APP_HANDLE app_handle,
+                                            tBTA_HL_MCL_HANDLE mcl_handle,
+                                            tBTA_HL_MDL_HANDLE mdl_handle,
+                                            tBTA_HL_STATUS status);
+    extern void  bta_hl_build_dch_close_ind(tBTA_HL *p_evt_data,
+                                            tBTA_HL_APP_HANDLE app_handle,
+                                            tBTA_HL_MCL_HANDLE mcl_handle,
+                                            tBTA_HL_MDL_HANDLE mdl_handle,
+                                            BOOLEAN intentional);
+    extern void  bta_hl_build_send_data_cfm(tBTA_HL *p_evt_data,
+                                            tBTA_HL_APP_HANDLE app_handle,
+                                            tBTA_HL_MCL_HANDLE mcl_handle,
+                                            tBTA_HL_MDL_HANDLE mdl_handle,
+                                            tBTA_HL_STATUS status );
+    extern void  bta_hl_build_rcv_data_ind(tBTA_HL *p_evt_data,
+                                           tBTA_HL_APP_HANDLE app_handle,
+                                           tBTA_HL_MCL_HANDLE mcl_handle,
+                                           tBTA_HL_MDL_HANDLE mdl_handle);
+    extern void  bta_hl_build_cch_open_cfm(tBTA_HL *p_evt_data,
+                                            UINT8 app_id,
+                                           tBTA_HL_APP_HANDLE app_handle,
+                                           tBTA_HL_MCL_HANDLE mcl_handle,
+                                           BD_ADDR bd_addr,
+                                           tBTA_HL_STATUS status );
+    extern void  bta_hl_build_cch_open_ind(tBTA_HL *p_evt_data,
+                                           tBTA_HL_APP_HANDLE app_handle,
+                                           tBTA_HL_MCL_HANDLE mcl_handle,
+                                           BD_ADDR bd_addr);
+    extern void  bta_hl_build_cch_close_cfm(tBTA_HL *p_evt_data,
+                                            tBTA_HL_APP_HANDLE app_handle,
+                                            tBTA_HL_MCL_HANDLE mcl_handle,
+                                            tBTA_HL_STATUS status );
+    extern void   bta_hl_build_cch_close_ind(tBTA_HL *p_evt_data,
+                                             tBTA_HL_APP_HANDLE app_handle,
+                                             tBTA_HL_MCL_HANDLE mcl_handle,
+                                             BOOLEAN intentional);
+
+    extern void  bta_hl_build_dch_open_cfm(tBTA_HL *p_evt_data,
+                                           tBTA_HL_APP_HANDLE app_handle,
+                                           tBTA_HL_MCL_HANDLE mcl_handle,
+                                           tBTA_HL_MDL_HANDLE mdl_handle,
+                                           tBTA_HL_MDEP_ID local_mdep_id,
+                                           tBTA_HL_MDL_ID mdl_id,
+                                           tBTA_HL_DCH_MODE dch_mode,
+                                           BOOLEAN first_reliable,
+                                           UINT16 mtu,
+                                           tBTA_HL_STATUS status);
+
+    extern void  bta_hl_build_delete_mdl_cfm(tBTA_HL *p_evt_data,
+                                             tBTA_HL_APP_HANDLE app_handle,
+                                             tBTA_HL_MCL_HANDLE mcl_handle,
+                                             tBTA_HL_MDL_ID mdl_id,
+                                             tBTA_HL_STATUS status);
+    extern void  bta_hl_build_echo_test_cfm(tBTA_HL *p_evt_data,
+                                            tBTA_HL_APP_HANDLE app_handle,
+                                            tBTA_HL_MCL_HANDLE mcl_handle,
+                                            tBTA_HL_STATUS status );
+    extern void  bta_hl_build_sdp_query_cfm(tBTA_HL *p_evt_data,
+                                            UINT8 app_id,
+                                            tBTA_HL_APP_HANDLE app_handle,
+                                            BD_ADDR bd_addr,
+                                            tBTA_HL_SDP *p_sdp,
+                                            tBTA_HL_STATUS status);
+
+#if (BTA_HL_DEBUG == TRUE)
+    extern  char *bta_hl_status_code(tBTA_HL_STATUS status);
+    extern char *bta_hl_evt_code(tBTA_HL_INT_EVT evt_code);
+#endif
+#ifdef __cplusplus
+}
+#endif
+#endif /* BTA_MSE_INT_H */
+
+
diff --git a/rtkbt/code/bt/bta/hl/bta_hl_main.c b/rtkbt/code/bt/bta/hl/bta_hl_main.c
new file mode 100755
index 0000000..b4d96cd
--- /dev/null
+++ b/rtkbt/code/bt/bta/hl/bta_hl_main.c
@@ -0,0 +1,2112 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1998-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains the HeaLth device profile main functions and state
+ *  machine.
+ *
+ ******************************************************************************/
+#include <string.h>
+
+#include "bt_target.h"
+#if defined(HL_INCLUDED) && (HL_INCLUDED == TRUE)
+
+
+
+#include "bta_hl_api.h"
+#include "bta_hl_int.h"
+#include "bt_common.h"
+#include "utl.h"
+#include "l2c_api.h"
+#include "mca_defs.h"
+
+
+#if (BTA_HL_DEBUG == TRUE) && (BT_USE_TRACES == TRUE)
+static char *bta_hl_cch_state_code(tBTA_HL_CCH_STATE state_code);
+static char *bta_hl_dch_state_code(tBTA_HL_DCH_STATE state_code);
+#endif
+
+extern UINT16 L2CA_AllocateRandomPsm(void);
+extern UINT16 L2CA_AllocatePsm(void);
+/*****************************************************************************
+** DCH State Table
+*****************************************************************************/
+/*****************************************************************************
+** Constants and types
+*****************************************************************************/
+/* state machine action enumeration list for DCH */
+/* The order of this enumeration must be the same as bta_hl_dch_act_tbl[] */
+enum
+{
+    BTA_HL_DCH_MCA_CREATE,
+    BTA_HL_DCH_MCA_CREATE_CFM,
+    BTA_HL_DCH_MCA_CREATE_IND,
+    BTA_HL_DCH_MCA_OPEN_CFM,
+    BTA_HL_DCH_MCA_OPEN_IND,
+    BTA_HL_DCH_MCA_CLOSE,
+    BTA_HL_DCH_MCA_CLOSE_CFM,
+    BTA_HL_DCH_MCA_CLOSE_IND,
+    BTA_HL_DCH_CLOSE_CMPL,
+    BTA_HL_DCH_MCA_RCV_DATA,
+
+    BTA_HL_DCH_SDP_INIT,
+    BTA_HL_DCH_MCA_RECONNECT,
+    BTA_HL_DCH_MCA_RECONNECT_IND,
+    BTA_HL_DCH_MCA_RECONNECT_CFM,
+    BTA_HL_DCH_CLOSE_ECHO_TEST,
+    BTA_HL_DCH_CREATE_RSP,
+    BTA_HL_DCH_MCA_ABORT,
+    BTA_HL_DCH_MCA_ABORT_IND,
+    BTA_HL_DCH_MCA_ABORT_CFM,
+    BTA_HL_DCH_MCA_CONG_CHANGE,
+
+    BTA_HL_DCH_SDP_FAIL,
+    BTA_HL_DCH_SEND_DATA,
+    BTA_HL_DCH_CI_GET_TX_DATA,
+    BTA_HL_DCH_CI_PUT_RX_DATA,
+    BTA_HL_DCH_CI_GET_ECHO_DATA,
+    BTA_HL_DCH_ECHO_TEST,
+    BTA_HL_DCH_CI_PUT_ECHO_DATA,
+    BTA_HL_DCH_IGNORE
+};
+
+typedef void (*tBTA_HL_DCH_ACTION)(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx, tBTA_HL_DATA *p_data);
+
+static const tBTA_HL_DCH_ACTION bta_hl_dch_action[] =
+{
+    bta_hl_dch_mca_create,
+    bta_hl_dch_mca_create_cfm,
+    bta_hl_dch_mca_create_ind,
+    bta_hl_dch_mca_open_cfm,
+    bta_hl_dch_mca_open_ind,
+    bta_hl_dch_mca_close,
+    bta_hl_dch_mca_close_cfm,
+    bta_hl_dch_mca_close_ind,
+    bta_hl_dch_close_cmpl,
+    bta_hl_dch_mca_rcv_data,
+
+    bta_hl_dch_sdp_init,
+    bta_hl_dch_mca_reconnect,
+    bta_hl_dch_mca_reconnect_ind,
+    bta_hl_dch_mca_reconnect_cfm,
+    bta_hl_dch_close_echo_test,
+    bta_hl_dch_create_rsp,
+    bta_hl_dch_mca_abort,
+    bta_hl_dch_mca_abort_ind,
+    bta_hl_dch_mca_abort_cfm,
+    bta_hl_dch_mca_cong_change,
+
+    bta_hl_dch_sdp_fail,
+    bta_hl_dch_send_data,
+    bta_hl_dch_ci_get_tx_data,
+    bta_hl_dch_ci_put_rx_data,
+    bta_hl_dch_ci_get_echo_data,
+    bta_hl_dch_echo_test,
+    bta_hl_dch_ci_put_echo_data,
+};
+
+
+/* state table information */
+#define BTA_HL_DCH_ACTIONS             1       /* number of actions */
+#define BTA_HL_DCH_ACTION_COL          0       /* position of action */
+#define BTA_HL_DCH_NEXT_STATE          1       /* position of next state */
+#define BTA_HL_DCH_NUM_COLS            2       /* number of columns in state tables */
+
+/* state table for idle state */
+static const UINT8 bta_hl_dch_st_idle[][BTA_HL_DCH_NUM_COLS] =
+{
+/* Event                                Action 1                    Next state */
+/* BTA_HL_DCH_SDP_INIT_EVT   */     {BTA_HL_DCH_SDP_INIT,           BTA_HL_DCH_OPENING_ST},
+/* BTA_HL_DCH_OPEN_EVT       */     {BTA_HL_DCH_MCA_CREATE,         BTA_HL_DCH_OPENING_ST},
+/* BTA_HL_MCA_CREATE_IND_EVT */     {BTA_HL_DCH_MCA_CREATE_IND,     BTA_HL_DCH_OPENING_ST},
+/* BTA_HL_MCA_CREATE_CFM_EVT */     {BTA_HL_DCH_IGNORE,             BTA_HL_DCH_IDLE_ST},
+/* BTA_HL_MCA_OPEN_IND_EVT   */     {BTA_HL_DCH_IGNORE,             BTA_HL_DCH_IDLE_ST},
+
+/* BTA_HL_MCA_OPEN_CFM_EVT   */     {BTA_HL_DCH_IGNORE,             BTA_HL_DCH_IDLE_ST},
+/* BTA_HL_DCH_CLOSE_EVT      */     {BTA_HL_DCH_IGNORE,             BTA_HL_DCH_IDLE_ST},
+/* BTA_HL_MCA_CLOSE_IND_EVT  */     {BTA_HL_DCH_IGNORE,             BTA_HL_DCH_IDLE_ST},
+/* BTA_HL_MCA_CLOSE_CFM_EVT  */     {BTA_HL_DCH_IGNORE,             BTA_HL_DCH_IDLE_ST},
+/* BTA_HL_API_SEND_DATA_EVT  */     {BTA_HL_DCH_IGNORE,             BTA_HL_DCH_IDLE_ST},
+
+/* BTA_HL_MCA_RCV_DATA_EVT   */     {BTA_HL_DCH_IGNORE,             BTA_HL_DCH_IDLE_ST},
+/* BTA_HL_DCH_CLOSE_CMPL_EVT */     {BTA_HL_DCH_IGNORE,             BTA_HL_DCH_IDLE_ST},
+/* BTA_HL_DCH_RECONNECT_EVT  */     {BTA_HL_DCH_MCA_RECONNECT,      BTA_HL_DCH_OPENING_ST},
+/* BTA_HL_DCH_SDP_FAIL_EVT   */     {BTA_HL_DCH_IGNORE,             BTA_HL_DCH_IDLE_ST},
+/* BTA_HL_MCA_RECONNECT_IND_EVT*/   {BTA_HL_DCH_MCA_RECONNECT_IND,  BTA_HL_DCH_OPENING_ST},
+
+/* BTA_HL_MCA_RECONNECT_CFM_EVT*/   {BTA_HL_DCH_IGNORE,             BTA_HL_DCH_IDLE_ST},
+/* BTA_HL_DCH_CLOSE_ECHO_TEST_EVT*/ {BTA_HL_DCH_IGNORE,             BTA_HL_DCH_IDLE_ST},
+/* BTA_HL_API_DCH_CREATE_RSP_EVT */ {BTA_HL_DCH_IGNORE,             BTA_HL_DCH_IDLE_ST},
+/* BTA_HL_DCH_ABORT_EVT */          {BTA_HL_DCH_IGNORE,             BTA_HL_DCH_IDLE_ST},
+/* BTA_HL_MCA_ABORT_IND_EVT */      {BTA_HL_DCH_IGNORE,             BTA_HL_DCH_IDLE_ST},
+
+/* BTA_HL_MCA_ABORT_CFM_EVT */      {BTA_HL_DCH_IGNORE,             BTA_HL_DCH_IDLE_ST},
+/* BTA_HL_MCA_CONG_CHG_EVT */       {BTA_HL_DCH_IGNORE,             BTA_HL_DCH_IDLE_ST},
+/* BTA_HL_CI_GET_TX_DATA_EVT  */    {BTA_HL_DCH_IGNORE,             BTA_HL_DCH_IDLE_ST},
+/* BTA_HL_CI_PUT_RX_DATA_EVT  */    {BTA_HL_DCH_IGNORE,             BTA_HL_DCH_IDLE_ST},
+/* BTA_HL_CI_GET_ECHO_DATA_EVT  */  {BTA_HL_DCH_IGNORE,             BTA_HL_DCH_IDLE_ST},
+/* BTA_HL_DCH_ECHO_TEST_EVT  */     {BTA_HL_DCH_ECHO_TEST,          BTA_HL_DCH_OPENING_ST},
+/* BTA_HL_CI_PUT_ECHO_DATA_EVT  */  {BTA_HL_DCH_IGNORE,             BTA_HL_DCH_IDLE_ST}
+};
+
+/* state table for opening state */
+static const UINT8 bta_hl_dch_st_opening[][BTA_HL_DCH_NUM_COLS] =
+{
+/* Event                                Action 1                    Next state */
+/* BTA_HL_DCH_SDP_INIT_EVT   */   {BTA_HL_DCH_SDP_INIT,             BTA_HL_DCH_OPENING_ST},
+/* BTA_HL_DCH_OPEN_EVT       */   {BTA_HL_DCH_MCA_CREATE,           BTA_HL_DCH_OPENING_ST},
+/* BTA_HL_MCA_CREATE_IND_EVT */   {BTA_HL_DCH_IGNORE,               BTA_HL_DCH_OPENING_ST},
+/* BTA_HL_MCA_CREATE_CFM_EVT */   {BTA_HL_DCH_MCA_CREATE_CFM,       BTA_HL_DCH_OPENING_ST},
+/* BTA_HL_MCA_OPEN_IND_EVT   */   {BTA_HL_DCH_MCA_OPEN_IND,         BTA_HL_DCH_OPEN_ST},
+/* BTA_HL_MCA_OPEN_CFM_EVT   */   {BTA_HL_DCH_MCA_OPEN_CFM,         BTA_HL_DCH_OPEN_ST},
+/* BTA_HL_DCH_CLOSE_EVT      */   {BTA_HL_DCH_IGNORE,               BTA_HL_DCH_OPENING_ST},
+/* BTA_HL_MCA_CLOSE_IND_EVT  */   {BTA_HL_DCH_MCA_CLOSE_IND,        BTA_HL_DCH_CLOSING_ST},
+/* BTA_HL_MCA_CLOSE_CFM_EVT  */   {BTA_HL_DCH_MCA_CLOSE_CFM,        BTA_HL_DCH_CLOSING_ST},
+/* BTA_HL_API_SEND_DATA_EVT  */   {BTA_HL_DCH_IGNORE,               BTA_HL_DCH_OPEN_ST},
+
+/* BTA_HL_MCA_RCV_DATA_EVT   */   {BTA_HL_DCH_IGNORE,               BTA_HL_DCH_OPEN_ST},
+/* BTA_HL_DCH_CLOSE_CMPL_EVT */   {BTA_HL_DCH_CLOSE_CMPL,           BTA_HL_DCH_IDLE_ST},
+/* BTA_HL_DCH_RECONNECT_EVT  */   {BTA_HL_DCH_MCA_RECONNECT,        BTA_HL_DCH_OPENING_ST},
+/* BTA_HL_DCH_SDP_FAIL_EVT   */   {BTA_HL_DCH_SDP_FAIL,             BTA_HL_DCH_CLOSING_ST},
+/* BTA_HL_MCA_RECONNECT_IND_EVT*/ {BTA_HL_DCH_IGNORE,               BTA_HL_DCH_IDLE_ST},
+/* BTA_HL_MCA_RECONNECT_CFM_EVT*/ {BTA_HL_DCH_MCA_RECONNECT_CFM,    BTA_HL_DCH_OPENING_ST},
+/* BTA_HL_DCH_CLOSE_ECHO_TEST_EVT*/ {BTA_HL_DCH_IGNORE,             BTA_HL_DCH_OPENING_ST},
+/* BTA_HL_API_DCH_CREATE_RSP_EVT */ {BTA_HL_DCH_CREATE_RSP,         BTA_HL_DCH_OPENING_ST},
+/* BTA_HL_DCH_ABORT_EVT */          {BTA_HL_DCH_MCA_ABORT,          BTA_HL_DCH_OPENING_ST},
+/* BTA_HL_MCA_ABORT_IND_EVT */      {BTA_HL_DCH_MCA_ABORT_IND,      BTA_HL_DCH_OPENING_ST},
+
+/* BTA_HL_MCA_ABORT_CFM_EVT */      {BTA_HL_DCH_MCA_ABORT_CFM,      BTA_HL_DCH_OPENING_ST},
+/* BTA_HL_MCA_CONG_CHG_EVT */       {BTA_HL_DCH_IGNORE,             BTA_HL_DCH_OPENING_ST},
+/* BTA_HL_CI_GET_TX_DATA_EVT  */    {BTA_HL_DCH_IGNORE,             BTA_HL_DCH_OPENING_ST},
+/* BTA_HL_CI_PUT_RX_DATA_EVT  */    {BTA_HL_DCH_IGNORE,             BTA_HL_DCH_OPENING_ST},
+/* BTA_HL_CI_GET_ECHO_DATA_EVT  */  {BTA_HL_DCH_CI_GET_ECHO_DATA,   BTA_HL_DCH_OPENING_ST},
+/* BTA_HL_DCH_ECHO_TEST_EVT  */     {BTA_HL_DCH_ECHO_TEST,          BTA_HL_DCH_OPENING_ST},
+/* BTA_HL_CI_PUT_ECHO_DATA_EVT  */  {BTA_HL_DCH_IGNORE,             BTA_HL_DCH_OPENING_ST}
+};
+
+/* state table for open state */
+static const UINT8 bta_hl_dch_st_open[][BTA_HL_DCH_NUM_COLS] =
+{
+/* Event                                Action 1                  Next state */
+/* BTA_HL_DCH_SDP_INIT_EVT   */     {BTA_HL_DCH_IGNORE,           BTA_HL_DCH_OPEN_ST},
+/* BTA_HL_DCH_OPEN_EVT       */     {BTA_HL_DCH_IGNORE,           BTA_HL_DCH_OPEN_ST},
+/* BTA_HL_MCA_CREATE_IND_EVT */     {BTA_HL_DCH_IGNORE,           BTA_HL_DCH_OPEN_ST},
+/* BTA_HL_MCA_CREATE_CFM_EVT */     {BTA_HL_DCH_IGNORE,           BTA_HL_DCH_OPEN_ST},
+/* BTA_HL_MCA_OPEN_IND_EVT   */     {BTA_HL_DCH_IGNORE,           BTA_HL_DCH_OPEN_ST},
+/* BTA_HL_MCA_OPEN_CFM_EVT   */     {BTA_HL_DCH_IGNORE,           BTA_HL_DCH_OPEN_ST},
+/* BTA_HL_DCH_CLOSE_EVT      */     {BTA_HL_DCH_MCA_CLOSE,        BTA_HL_DCH_CLOSING_ST},
+/* BTA_HL_MCA_CLOSE_IND_EVT  */     {BTA_HL_DCH_MCA_CLOSE_IND,    BTA_HL_DCH_CLOSING_ST},
+/* BTA_HL_MCA_CLOSE_CFM_EVT  */     {BTA_HL_DCH_MCA_CLOSE_CFM,    BTA_HL_DCH_CLOSING_ST},
+/* BTA_HL_API_SEND_DATA_EVT  */     {BTA_HL_DCH_SEND_DATA,        BTA_HL_DCH_OPEN_ST},
+
+/* BTA_HL_MCA_RCV_DATA_EVT   */     {BTA_HL_DCH_MCA_RCV_DATA,     BTA_HL_DCH_OPEN_ST},
+/* BTA_HL_DCH_CLOSE_CMPL_EVT */     {BTA_HL_DCH_CLOSE_CMPL,       BTA_HL_DCH_IDLE_ST},
+/* BTA_HL_DCH_RECONNECT_EVT  */     {BTA_HL_DCH_IGNORE,           BTA_HL_DCH_OPEN_ST},
+/* BTA_HL_DCH_SDP_FAIL_EVT   */     {BTA_HL_DCH_IGNORE,           BTA_HL_DCH_OPEN_ST},
+/* BTA_HL_MCA_RECONNECT_IND_EVT*/   {BTA_HL_DCH_IGNORE,           BTA_HL_DCH_OPEN_ST},
+/* BTA_HL_MCA_RECONNECT_CFM_EVT*/   {BTA_HL_DCH_IGNORE,           BTA_HL_DCH_OPEN_ST},
+/* BTA_HL_DCH_CLOSE_ECHO_TEST_EVT*/ {BTA_HL_DCH_CLOSE_ECHO_TEST,  BTA_HL_DCH_CLOSING_ST},
+/* BTA_HL_API_DCH_CREATE_RSP_EVT */ {BTA_HL_DCH_IGNORE,           BTA_HL_DCH_OPEN_ST},
+/* BTA_HL_DCH_ABORT_EVT */          {BTA_HL_DCH_IGNORE,           BTA_HL_DCH_OPEN_ST},
+/* BTA_HL_MCA_ABORT_IND_EVT */      {BTA_HL_DCH_IGNORE,           BTA_HL_DCH_OPEN_ST},
+
+/* BTA_HL_DCH_ABORT_CFM_EVT */      {BTA_HL_DCH_IGNORE,           BTA_HL_DCH_OPEN_ST},
+/* BTA_HL_MCA_CONG_CHG_EVT */       {BTA_HL_DCH_MCA_CONG_CHANGE,  BTA_HL_DCH_OPEN_ST},
+/* BTA_HL_CI_GET_TX_DATA_EVT  */    {BTA_HL_DCH_CI_GET_TX_DATA,   BTA_HL_DCH_OPEN_ST},
+/* BTA_HL_CI_PUT_RX_DATA_EVT  */    {BTA_HL_DCH_CI_PUT_RX_DATA,   BTA_HL_DCH_OPEN_ST},
+/* BTA_HL_CI_GET_ECHO_DATA_EVT  */  {BTA_HL_DCH_CI_GET_ECHO_DATA, BTA_HL_DCH_OPEN_ST},
+/* BTA_HL_DCH_ECHO_TEST_EVT  */     {BTA_HL_DCH_IGNORE,           BTA_HL_DCH_OPEN_ST},
+/* BTA_HL_CI_PUT_ECHO_DATA_EVT  */  {BTA_HL_DCH_CI_PUT_ECHO_DATA, BTA_HL_DCH_OPEN_ST}
+};
+
+
+/* state table for closing state */
+static const UINT8 bta_hl_dch_st_closing[][BTA_HL_DCH_NUM_COLS] =
+{
+/* Event                                Action 1                  Next state */
+/* BTA_HL_DCH_SDP_INIT_EVT   */     {BTA_HL_DCH_IGNORE,           BTA_HL_DCH_CLOSING_ST},
+/* BTA_HL_DCH_OPEN_EVT       */     {BTA_HL_DCH_IGNORE,           BTA_HL_DCH_CLOSING_ST},
+/* BTA_HL_MCA_CREATE_IND_EVT */     {BTA_HL_DCH_IGNORE,           BTA_HL_DCH_CLOSING_ST},
+/* BTA_HL_MCA_CREATE_CFM_EVT */     {BTA_HL_DCH_IGNORE,           BTA_HL_DCH_CLOSING_ST},
+/* BTA_HL_MCA_OPEN_IND_EVT   */     {BTA_HL_DCH_IGNORE,           BTA_HL_DCH_CLOSING_ST},
+/* BTA_HL_MCA_OPEN_CFM_EVT   */     {BTA_HL_DCH_IGNORE,           BTA_HL_DCH_CLOSING_ST},
+/* BTA_HL_DCH_CLOSE_EVT      */     {BTA_HL_DCH_MCA_CLOSE,        BTA_HL_DCH_CLOSING_ST},
+/* BTA_HL_MCA_CLOSE_IND_EVT  */     {BTA_HL_DCH_IGNORE,           BTA_HL_DCH_CLOSING_ST},
+/* BTA_HL_MCA_CLOSE_CFM_EVT  */     {BTA_HL_DCH_MCA_CLOSE_CFM,    BTA_HL_DCH_CLOSING_ST},
+/* BTA_HL_API_SEND_DATA_EVT  */     {BTA_HL_DCH_IGNORE,           BTA_HL_DCH_CLOSING_ST},
+
+/* BTA_HL_MCA_RCV_DATA_EVT   */     {BTA_HL_DCH_IGNORE,           BTA_HL_DCH_CLOSING_ST},
+/* BTA_HL_DCH_CLOSE_CMPL_EVT */     {BTA_HL_DCH_CLOSE_CMPL,       BTA_HL_DCH_IDLE_ST},
+/* BTA_HL_DCH_RECONNECT_EVT  */     {BTA_HL_DCH_IGNORE,           BTA_HL_DCH_CLOSING_ST},
+/* BTA_HL_DCH_SDP_FAIL_EVT   */     {BTA_HL_DCH_IGNORE,           BTA_HL_DCH_CLOSING_ST},
+/* BTA_HL_MCA_RECONNECT_IND_EVT*/   {BTA_HL_DCH_IGNORE,           BTA_HL_DCH_CLOSING_ST},
+/* BTA_HL_MCA_RECONNECT_CFM_EVT*/   {BTA_HL_DCH_IGNORE,           BTA_HL_DCH_CLOSING_ST},
+/* BTA_HL_DCH_CLOSE_ECHO_TEST_EVT*/ {BTA_HL_DCH_IGNORE,           BTA_HL_DCH_CLOSING_ST},
+/* BTA_HL_API_DCH_CREATE_RSP_EVT */ {BTA_HL_DCH_IGNORE,           BTA_HL_DCH_CLOSING_ST},
+/* BTA_HL_DCH_ABORT_EVT */          {BTA_HL_DCH_IGNORE,           BTA_HL_DCH_CLOSING_ST},
+/* BTA_HL_MCA_ABORT_IND_EVT */      {BTA_HL_DCH_IGNORE,           BTA_HL_DCH_CLOSING_ST},
+
+/* BTA_HL_DCH_ABORT_CFM_EVT */      {BTA_HL_DCH_IGNORE,           BTA_HL_DCH_CLOSING_ST},
+/* BTA_HL_MCA_CONG_CHG_EVT */       {BTA_HL_DCH_IGNORE,           BTA_HL_DCH_CLOSING_ST},
+/* BTA_HL_CI_GET_TX_DATA_EVT  */    {BTA_HL_DCH_CI_GET_TX_DATA,   BTA_HL_DCH_CLOSING_ST},
+/* BTA_HL_CI_PUT_RX_DATA_EVT  */    {BTA_HL_DCH_CI_PUT_RX_DATA,   BTA_HL_DCH_CLOSING_ST},
+/* BTA_HL_CI_GET_ECHO_DATA_EVT  */  {BTA_HL_DCH_CI_GET_ECHO_DATA, BTA_HL_DCH_CLOSING_ST},
+/* BTA_HL_DCH_ECHO_TEST_EVT  */     {BTA_HL_DCH_IGNORE,           BTA_HL_DCH_CLOSING_ST},
+/* BTA_HL_CI_PUT_ECHO_DATA_EVT  */  {BTA_HL_DCH_CI_PUT_ECHO_DATA, BTA_HL_DCH_CLOSING_ST}
+};
+
+/* type for state table */
+typedef const UINT8 (*tBTA_HL_DCH_ST_TBL)[BTA_HL_DCH_NUM_COLS];
+
+/* state table */
+const tBTA_HL_DCH_ST_TBL bta_hl_dch_st_tbl[] =
+{
+    bta_hl_dch_st_idle,
+    bta_hl_dch_st_opening,
+    bta_hl_dch_st_open,
+    bta_hl_dch_st_closing
+};
+
+/*****************************************************************************
+** CCH State Table
+*****************************************************************************/
+/*****************************************************************************
+** Constants and types
+*****************************************************************************/
+/* state machine action enumeration list for CCH */
+enum
+{
+    BTA_HL_CCH_SDP_INIT,
+    BTA_HL_CCH_MCA_OPEN,
+    BTA_HL_CCH_MCA_CLOSE,
+    BTA_HL_CCH_CLOSE_CMPL,
+    BTA_HL_CCH_MCA_CONNECT,
+    BTA_HL_CCH_MCA_DISCONNECT,
+    BTA_HL_CCH_MCA_RSP_TOUT,
+    BTA_HL_CCH_MCA_DISC_OPEN,
+    BTA_HL_CCH_IGNORE
+};
+
+/* type for action functions */
+typedef void (*tBTA_HL_CCH_ACTION)(UINT8 app_idx, UINT8 mcl_idx, tBTA_HL_DATA *p_data);
+
+/* action function list for MAS */
+const tBTA_HL_CCH_ACTION bta_hl_cch_action[] =
+{
+    bta_hl_cch_sdp_init,
+    bta_hl_cch_mca_open,
+    bta_hl_cch_mca_close,
+    bta_hl_cch_close_cmpl,
+    bta_hl_cch_mca_connect,
+    bta_hl_cch_mca_disconnect,
+    bta_hl_cch_mca_rsp_tout,
+    bta_hl_cch_mca_disc_open
+};
+
+
+/* state table information */
+#define BTA_HL_CCH_ACTIONS             1       /* number of actions */
+#define BTA_HL_CCH_NEXT_STATE          1       /* position of next state */
+#define BTA_HL_CCH_NUM_COLS            2       /* number of columns in state tables */
+
+
+/* state table for MAS idle state */
+static const UINT8 bta_hl_cch_st_idle[][BTA_HL_CCH_NUM_COLS] =
+{
+/* Event                          Action 1                  Next state */
+/* BTA_HL_CCH_OPEN_EVT           */ {BTA_HL_CCH_SDP_INIT,       BTA_HL_CCH_OPENING_ST},
+/* BTA_HL_CCH_SDP_OK_EVT         */ {BTA_HL_CCH_IGNORE,         BTA_HL_CCH_IDLE_ST},
+/* BTA_HL_CCH_SDP_FAIL_EVT       */ {BTA_HL_CCH_IGNORE,         BTA_HL_CCH_IDLE_ST},
+/* BTA_HL_MCA_CONNECT_IND_EVT    */ {BTA_HL_CCH_MCA_CONNECT,    BTA_HL_CCH_OPEN_ST},
+/* BTA_HL_MCA_DISCONNECT_IND_EVT */ {BTA_HL_CCH_IGNORE,         BTA_HL_CCH_IDLE_ST},
+/* BTA_HL_CCH_CLOSE_EVT          */ {BTA_HL_CCH_IGNORE,         BTA_HL_CCH_IDLE_ST},
+/* BTA_HL_CCH_CLOSE_CMPL_EVT     */ {BTA_HL_CCH_IGNORE,         BTA_HL_CCH_IDLE_ST},
+/* BTA_HL_CCH_CLOSE_CMPL_EVT     */ {BTA_HL_CCH_IGNORE,         BTA_HL_CCH_IDLE_ST}
+};
+
+/* state table for obex/rfcomm connection state */
+static const UINT8 bta_hl_cch_st_opening[][BTA_HL_CCH_NUM_COLS] =
+{
+/* Event                          Action 1               Next state */
+/* BTA_HL_CCH_OPEN_EVT           */ {BTA_HL_CCH_IGNORE,         BTA_HL_CCH_OPENING_ST},
+/* BTA_HL_CCH_SDP_OK_EVT         */ {BTA_HL_CCH_MCA_OPEN,       BTA_HL_CCH_OPENING_ST},
+/* BTA_HL_CCH_SDP_FAIL_EVT       */ {BTA_HL_CCH_CLOSE_CMPL,     BTA_HL_CCH_IDLE_ST},
+/* BTA_HL_MCA_CONNECT_IND_EVT    */ {BTA_HL_CCH_MCA_CONNECT,    BTA_HL_CCH_OPEN_ST},
+/* BTA_HL_MCA_DISCONNECT_IND_EVT */ {BTA_HL_CCH_MCA_DISCONNECT, BTA_HL_CCH_CLOSING_ST},
+/* BTA_HL_CCH_CLOSE_EVT          */ {BTA_HL_CCH_MCA_CLOSE,      BTA_HL_CCH_CLOSING_ST},
+/* BTA_HL_CCH_CLOSE_CMPL_EVT     */ {BTA_HL_CCH_CLOSE_CMPL,     BTA_HL_CCH_IDLE_ST},
+/* BTA_HL_MCA_RSP_TOUT_IND_EVT   */ {BTA_HL_CCH_MCA_RSP_TOUT,   BTA_HL_CCH_CLOSING_ST}
+};
+
+/* state table for open state */
+static const UINT8 bta_hl_cch_st_open[][BTA_HL_CCH_NUM_COLS] =
+{
+/* Event                          Action 1                  Next state */
+/* BTA_HL_CCH_OPEN_EVT           */ {BTA_HL_CCH_IGNORE,         BTA_HL_CCH_OPEN_ST},
+/* BTA_HL_CCH_SDP_OK_EVT         */ {BTA_HL_CCH_IGNORE,         BTA_HL_CCH_OPEN_ST},
+/* BTA_HL_CCH_SDP_FAIL_EVT       */ {BTA_HL_CCH_IGNORE,         BTA_HL_CCH_OPEN_ST},
+/* BTA_HL_MCA_CONNECT_IND_EVT    */ {BTA_HL_CCH_IGNORE,         BTA_HL_CCH_OPEN_ST},
+/* BTA_HL_MCA_DISCONNECT_IND_EVT */ {BTA_HL_CCH_MCA_DISCONNECT, BTA_HL_CCH_CLOSING_ST},
+/* BTA_HL_CCH_CLOSE_EVT          */ {BTA_HL_CCH_MCA_CLOSE,      BTA_HL_CCH_CLOSING_ST},
+/* BTA_HL_CCH_CLOSE_CMPL_EVT     */ {BTA_HL_CCH_IGNORE,         BTA_HL_CCH_OPEN_ST},
+/* BTA_HL_MCA_RSP_TOUT_IND_EVT   */ {BTA_HL_CCH_MCA_RSP_TOUT,   BTA_HL_CCH_CLOSING_ST}
+};
+
+/* state table for closing state */
+static const UINT8 bta_hl_cch_st_closing[][BTA_HL_CCH_NUM_COLS] =
+{
+/* Event                          Action 1                  Next state */
+/* BTA_HL_CCH_OPEN_EVT           */ {BTA_HL_CCH_IGNORE,         BTA_HL_CCH_CLOSING_ST},
+/* BTA_HL_CCH_SDP_OK_EVT         */ {BTA_HL_CCH_CLOSE_CMPL,     BTA_HL_CCH_IDLE_ST},
+/* BTA_HL_CCH_SDP_FAIL_EVT       */ {BTA_HL_CCH_CLOSE_CMPL,     BTA_HL_CCH_IDLE_ST},
+/* BTA_HL_MCA_CONNECT_IND_EVT    */ {BTA_HL_CCH_MCA_DISC_OPEN,  BTA_HL_CCH_CLOSING_ST},
+/* BTA_HL_MCA_DISCONNECT_IND_EVT */ {BTA_HL_CCH_MCA_DISCONNECT, BTA_HL_CCH_CLOSING_ST},
+/* BTA_HL_CCH_CLOSE_EVT          */ {BTA_HL_CCH_MCA_CLOSE,      BTA_HL_CCH_CLOSING_ST},
+/* BTA_HL_CCH_CLOSE_CMPL_EVT     */ {BTA_HL_CCH_CLOSE_CMPL,     BTA_HL_CCH_IDLE_ST},
+/* BTA_HL_MCA_RSP_TOUT_IND_EVT   */ {BTA_HL_CCH_IGNORE,         BTA_HL_CCH_CLOSING_ST}
+};
+
+/* type for state table CCH */
+typedef const UINT8 (*tBTA_HL_CCH_ST_TBL)[BTA_HL_CCH_NUM_COLS];
+
+/* MAS state table */
+const tBTA_HL_CCH_ST_TBL bta_hl_cch_st_tbl[] =
+{
+    bta_hl_cch_st_idle,
+    bta_hl_cch_st_opening,
+    bta_hl_cch_st_open,
+    bta_hl_cch_st_closing
+};
+
+
+/*****************************************************************************
+** Global data
+*****************************************************************************/
+
+/* HL control block */
+#if BTA_DYNAMIC_MEMORY == FALSE
+tBTA_HL_CB  bta_hl_cb;
+#endif
+
+
+/*******************************************************************************
+**
+** Function         bta_hl_cch_sm_execute
+**
+** Description      State machine event handling function for CCH
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hl_cch_sm_execute(UINT8 app_idx, UINT8 mcl_idx,
+                           UINT16 event, tBTA_HL_DATA *p_data)
+{
+    tBTA_HL_CCH_ST_TBL  state_table;
+    UINT8               action;
+    int                 i;
+    tBTA_HL_MCL_CB      *p_cb  = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+
+#if (BTA_HL_DEBUG == TRUE) && (BT_USE_TRACES == TRUE)
+    tBTA_HL_CCH_STATE in_state = p_cb->cch_state;
+    UINT16             cur_evt = event;
+    APPL_TRACE_DEBUG("HDP CCH Event Handler: State 0x%02x [%s], Event [%s]", in_state,
+                      bta_hl_cch_state_code(in_state),
+                      bta_hl_evt_code(cur_evt));
+#endif
+
+    /* look up the state table for the current state */
+    state_table = bta_hl_cch_st_tbl[p_cb->cch_state];
+
+    event &= 0x00FF;
+
+    /* set next state */
+    p_cb->cch_state = state_table[event][BTA_HL_CCH_NEXT_STATE];
+
+    for (i = 0; i < BTA_HL_CCH_ACTIONS; i++)
+    {
+        if ((action = state_table[event][i]) != BTA_HL_CCH_IGNORE)
+        {
+            (*bta_hl_cch_action[action])(app_idx, mcl_idx, p_data);
+        }
+        else
+        {
+            /* discard HDP data */
+            bta_hl_discard_data(p_data->hdr.event, p_data);
+            break;
+        }
+    }
+#if (BTA_HL_DEBUG == TRUE) && (BT_USE_TRACES == TRUE)
+    if (in_state != p_cb->cch_state)
+    {
+        APPL_TRACE_DEBUG("HL CCH State Change: [%s] -> [%s] after [%s]",
+                          bta_hl_cch_state_code(in_state),
+                          bta_hl_cch_state_code(p_cb->cch_state),
+                          bta_hl_evt_code(cur_evt));
+    }
+#endif
+
+}
+
+/*******************************************************************************
+**
+** Function         bta_hl_dch_sm_execute
+**
+** Description      State machine event handling function for DCH
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hl_dch_sm_execute(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx,
+                           UINT16 event, tBTA_HL_DATA *p_data)
+{
+    tBTA_HL_DCH_ST_TBL  state_table;
+    UINT8               action;
+    int                 i;
+    tBTA_HL_MDL_CB      *p_cb  = BTA_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx);
+
+#if (BTA_HL_DEBUG == TRUE) && (BT_USE_TRACES == TRUE)
+    tBTA_HL_DCH_STATE in_state = p_cb->dch_state;
+    UINT16             cur_evt = event;
+    APPL_TRACE_DEBUG("HDP DCH Event Handler: State 0x%02x [%s], Event [%s]", in_state,
+                      bta_hl_dch_state_code(in_state),
+                      bta_hl_evt_code(cur_evt));
+#endif
+
+    /* look up the state table for the current state */
+    state_table = bta_hl_dch_st_tbl[p_cb->dch_state];
+    event -= BTA_HL_DCH_EVT_MIN;
+
+    /* set next state */
+    p_cb->dch_state = state_table[event][BTA_HL_DCH_NEXT_STATE];
+
+    for (i = 0; i < BTA_HL_DCH_ACTIONS; i++)
+    {
+        if ((action = state_table[event][i]) != BTA_HL_DCH_IGNORE)
+        {
+            (*bta_hl_dch_action[action])(app_idx, mcl_idx, mdl_idx, p_data);
+        }
+        else
+        {
+            /* discard mas data */
+            bta_hl_discard_data(p_data->hdr.event, p_data);
+            break;
+        }
+    }
+
+
+#if (BTA_HL_DEBUG == TRUE) && (BT_USE_TRACES == TRUE)
+    if (in_state != p_cb->dch_state)
+    {
+        APPL_TRACE_DEBUG("HL DCH State Change: [%s] -> [%s] after [%s]",
+                          bta_hl_dch_state_code(in_state),
+                          bta_hl_dch_state_code(p_cb->dch_state),
+                          bta_hl_evt_code(cur_evt));
+    }
+#endif
+}
+/*******************************************************************************
+**
+** Function         bta_hl_api_enable
+**
+** Description      Process the API enable request to enable the HL subsystem
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_hl_api_enable(tBTA_HL_CB *p_cb, tBTA_HL_DATA *p_data)
+{
+    tBTA_HL_CTRL    evt_data;
+
+    /* If already enabled then reject this request */
+    if (p_cb->enable)
+    {
+        APPL_TRACE_ERROR("HL is already enabled");
+        evt_data.enable_cfm.status = BTA_HL_STATUS_FAIL;
+        if (p_data->api_enable.p_cback)
+            p_data->api_enable.p_cback(BTA_HL_CTRL_ENABLE_CFM_EVT, (tBTA_HL_CTRL *) &evt_data);
+        return;
+    }
+
+    /* Done with checking. now perform the enable oepration*/
+    /* initialize control block */
+    memset(p_cb, 0, sizeof(tBTA_HL_CB));
+    p_cb->enable = TRUE;
+    p_cb->p_ctrl_cback = p_data->api_enable.p_cback;
+    evt_data.enable_cfm.status = BTA_HL_STATUS_OK;
+    if (p_data->api_enable.p_cback)
+        p_data->api_enable.p_cback(BTA_HL_CTRL_ENABLE_CFM_EVT, (tBTA_HL_CTRL *) &evt_data);
+
+}
+/*******************************************************************************
+**
+** Function         bta_hl_api_disable
+**
+** Description      Process the API disable request to disable the HL subsystem
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_hl_api_disable(tBTA_HL_CB *p_cb, tBTA_HL_DATA *p_data)
+{
+    tBTA_HL_CTRL    evt_data;
+    tBTA_HL_STATUS  status = BTA_HL_STATUS_OK;
+
+    if (p_cb->enable)
+    {
+        p_cb->disabling = TRUE;
+        bta_hl_check_disable(p_data);
+    }
+    else
+    {
+        status = BTA_HL_STATUS_FAIL;
+        evt_data.disable_cfm.status = status;
+        if (p_cb->p_ctrl_cback) p_cb->p_ctrl_cback(BTA_HL_CTRL_DISABLE_CFM_EVT, (tBTA_HL_CTRL *) &evt_data);
+    }
+
+
+#if BTA_HL_DEBUG == TRUE
+    if (status != BTA_HL_STATUS_OK)
+    {
+        APPL_TRACE_DEBUG("bta_hl_api_disable status =%s", bta_hl_status_code(status));
+    }
+#endif
+
+}
+
+/*******************************************************************************
+**
+** Function         bta_hl_api_update
+**
+** Description      Process the API registration request to register an HDP applciation
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_hl_api_update(tBTA_HL_CB *p_cb, tBTA_HL_DATA *p_data)
+{
+    tBTA_HL         evt_data;
+    tBTA_HL_APP_CB  *p_acb = BTA_HL_GET_APP_CB_PTR(0);
+    tBTA_HL_STATUS  status = BTA_HL_STATUS_FAIL;
+
+
+    APPL_TRACE_DEBUG("bta_hl_api_update");
+    if (p_cb->enable)
+    {
+
+        status = bta_hl_app_update(p_data->api_update.app_id, p_data->api_update.is_register);
+        if (!p_data->api_update.is_register)
+        {
+            APPL_TRACE_DEBUG("Deregister");
+            memset(&evt_data, 0, sizeof(tBTA_HL));
+            evt_data.dereg_cfm.status = status;
+            evt_data.dereg_cfm.app_id = p_data->api_update.app_id;
+            if (status == BTA_HL_STATUS_OK)
+                evt_data.dereg_cfm.app_handle = p_acb->app_handle;
+            if (p_acb->p_cback)
+            {
+                p_acb->p_cback(BTA_HL_DEREGISTER_CFM_EVT, (tBTA_HL *) &evt_data);
+            }
+            return ;
+        }
+
+    }
+
+    if (status != BTA_HL_STATUS_OK)
+    {
+        if ((status != BTA_HL_STATUS_DUPLICATE_APP_ID) &&
+            (status != BTA_HL_STATUS_NO_RESOURCE))
+        {
+            if (p_acb)
+                memset(p_acb, 0, sizeof(tBTA_HL_APP_CB));
+        }
+    }
+#if BTA_HL_DEBUG == TRUE
+    if (status != BTA_HL_STATUS_OK)
+    {
+        APPL_TRACE_DEBUG("bta_hl_api_register status =%s", bta_hl_status_code(status));
+    }
+#endif
+
+    memset(&evt_data, 0, sizeof(tBTA_HL));
+    evt_data.reg_cfm.status = status;
+    evt_data.reg_cfm.app_id = p_data->api_update.app_id;
+    if (status == BTA_HL_STATUS_OK)
+        evt_data.reg_cfm.app_handle = p_acb->app_handle;
+    if (p_data->api_reg.p_cback)
+    {
+        p_data->api_reg.p_cback(BTA_HL_REGISTER_CFM_EVT, (tBTA_HL *) &evt_data);
+    }
+
+    if (status == BTA_HL_STATUS_OK)
+    {
+        evt_data.sdp_info_ind.app_handle = p_acb->app_handle;
+        evt_data.sdp_info_ind.ctrl_psm = p_acb->ctrl_psm;
+        evt_data.sdp_info_ind.data_psm = p_acb->data_psm;
+        evt_data.sdp_info_ind.data_x_spec = BTA_HL_SDP_IEEE_11073_20601;
+        evt_data.sdp_info_ind.mcap_sup_procs = BTA_HL_MCAP_SUP_PROC_MASK ;
+
+        if (p_data->api_reg.p_cback)
+        {
+            p_data->api_reg.p_cback(BTA_HL_SDP_INFO_IND_EVT, (tBTA_HL *) &evt_data);
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_hl_api_register
+**
+** Description      Process the API registration request to register an HDP applciation
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_hl_api_register(tBTA_HL_CB *p_cb, tBTA_HL_DATA *p_data)
+{
+    tBTA_HL         evt_data;
+    UINT8           app_idx;
+    tBTA_HL_APP_CB  *p_acb = NULL;
+    tBTA_HL_STATUS  status = BTA_HL_STATUS_FAIL;
+
+
+    if (p_cb->enable)
+    {
+        if (!bta_hl_is_a_duplicate_id(p_data->api_reg.app_id))
+        {
+            if (bta_hl_find_avail_app_idx(&app_idx))
+            {
+                p_acb = BTA_HL_GET_APP_CB_PTR(app_idx);
+                p_acb->in_use = TRUE;
+                p_acb->app_id = p_data->api_reg.app_id;
+                p_acb->p_cback = p_data->api_reg.p_cback;
+                p_acb->sec_mask = p_data->api_reg.sec_mask;
+                p_acb->dev_type = p_data->api_reg.dev_type;
+                strlcpy(p_acb->srv_name, p_data->api_reg.srv_name, BTA_SERVICE_NAME_LEN);
+                strlcpy(p_acb->srv_desp, p_data->api_reg.srv_desp, BTA_SERVICE_DESP_LEN);
+                strlcpy(p_acb->provider_name, p_data->api_reg.provider_name, BTA_PROVIDER_NAME_LEN);
+                bta_hl_cb.p_alloc_psm = L2CA_AllocatePSM;
+                p_acb->ctrl_psm = bta_hl_cb.p_alloc_psm();
+                p_acb->data_psm = bta_hl_cb.p_alloc_psm();
+                p_acb->p_mcap_cback = bta_hl_mcap_ctrl_cback;
+                status = bta_hl_app_registration(app_idx);
+            }
+            else
+            {
+                status = BTA_HL_STATUS_NO_RESOURCE;
+            }
+        }
+        else
+        {
+            status = BTA_HL_STATUS_DUPLICATE_APP_ID;
+        }
+    }
+
+    if (status != BTA_HL_STATUS_OK)
+    {
+        if ((status != BTA_HL_STATUS_DUPLICATE_APP_ID) &&
+            (status != BTA_HL_STATUS_NO_RESOURCE))
+        {
+            if (p_acb)
+                memset(p_acb, 0, sizeof(tBTA_HL_APP_CB));
+        }
+    }
+#if BTA_HL_DEBUG == TRUE
+    if (status != BTA_HL_STATUS_OK)
+    {
+        APPL_TRACE_DEBUG("bta_hl_api_register status =%s", bta_hl_status_code(status));
+    }
+#endif
+
+    memset(&evt_data, 0, sizeof(tBTA_HL));
+    evt_data.reg_cfm.status = status;
+    evt_data.reg_cfm.app_id = p_data->api_reg.app_id;
+    if (status == BTA_HL_STATUS_OK)
+        evt_data.reg_cfm.app_handle = p_acb->app_handle;
+    if (p_data->api_reg.p_cback)
+    {
+        p_data->api_reg.p_cback(BTA_HL_REGISTER_CFM_EVT, (tBTA_HL *) &evt_data);
+    }
+
+    if (status == BTA_HL_STATUS_OK)
+    {
+        evt_data.sdp_info_ind.app_handle = p_acb->app_handle;
+        evt_data.sdp_info_ind.ctrl_psm = p_acb->ctrl_psm;
+        evt_data.sdp_info_ind.data_psm = p_acb->data_psm;
+        evt_data.sdp_info_ind.data_x_spec = BTA_HL_SDP_IEEE_11073_20601;
+        evt_data.sdp_info_ind.mcap_sup_procs = BTA_HL_MCAP_SUP_PROC_MASK ;
+
+        if (p_data->api_reg.p_cback)
+        {
+            p_data->api_reg.p_cback(BTA_HL_SDP_INFO_IND_EVT, (tBTA_HL *) &evt_data);
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_hl_api_deregister
+**
+** Description      Process the API de-registration request
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_hl_api_deregister(tBTA_HL_CB *p_cb, tBTA_HL_DATA *p_data)
+{
+    UINT8           app_idx;
+    tBTA_HL_APP_CB  *p_acb;
+    UNUSED(p_cb);
+
+    if (bta_hl_find_app_idx_using_handle(p_data->api_dereg.app_handle, &app_idx))
+    {
+        p_acb = BTA_HL_GET_APP_CB_PTR(app_idx);
+        p_acb->deregistering= TRUE;
+        bta_hl_check_deregistration(app_idx,p_data);
+    }
+    else
+    {
+        APPL_TRACE_ERROR("Invalid app_handle=%d", p_data->api_dereg.app_handle);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_hl_api_cch_open
+**
+** Description      Process the API CCH open request
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_hl_api_cch_open(tBTA_HL_CB *p_cb, tBTA_HL_DATA *p_data)
+{
+    tBTA_HL         evt_data;
+    tBTA_HL_STATUS  status = BTA_HL_STATUS_OK;
+    UINT8           app_idx, mcl_idx;
+    tBTA_HL_APP_CB  *p_acb;
+    tBTA_HL_MCL_CB  *p_mcb;
+    UNUSED(p_cb);
+
+    if (bta_hl_find_app_idx_using_handle(p_data->api_cch_open.app_handle, &app_idx))
+    {
+
+        if (!bta_hl_find_mcl_idx(app_idx, p_data->api_cch_open.bd_addr, &mcl_idx))
+        {
+            if (bta_hl_find_avail_mcl_idx(app_idx, &mcl_idx))
+            {
+                p_mcb = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+                p_mcb->in_use = TRUE;
+                p_mcb->req_ctrl_psm = p_data->api_cch_open.ctrl_psm;
+                p_mcb->sec_mask = p_data->api_cch_open.sec_mask;
+                bdcpy(p_mcb->bd_addr, p_data->api_cch_open.bd_addr);
+                p_mcb->cch_oper = BTA_HL_CCH_OP_LOCAL_OPEN;
+            }
+            else
+            {
+                status = BTA_HL_STATUS_NO_RESOURCE;
+            }
+        }
+        else
+        {
+            /* Only one MCL per BD_ADDR */
+            status = BTA_HL_STATUS_DUPLICATE_CCH_OPEN;
+            APPL_TRACE_DEBUG("bta_hl_api_cch_open: CCH already open: status =%d",status)
+            p_acb = BTA_HL_GET_APP_CB_PTR(app_idx);
+            p_mcb = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+            if (p_acb->p_cback)
+            {
+                bta_hl_build_cch_open_cfm(&evt_data, p_data->api_cch_open.app_id,
+                                          p_data->api_cch_open.app_handle,
+                                          p_mcb->mcl_handle,
+                                          p_data->api_cch_open.bd_addr,
+                                          status);
+                p_acb->p_cback(BTA_HL_CCH_OPEN_CFM_EVT,(tBTA_HL *) &evt_data );
+            }
+            else
+            {
+                APPL_TRACE_ERROR("bta_hl_api_cch_open Null Callback");
+            }
+            return;
+        }
+    }
+    else
+    {
+        status = BTA_HL_STATUS_INVALID_APP_HANDLE;
+    }
+#if BTA_HL_DEBUG == TRUE
+    if (status != BTA_HL_STATUS_OK)
+    {
+        APPL_TRACE_DEBUG("bta_hl_api_cch_open status =%s", bta_hl_status_code(status));
+    }
+#endif
+    switch (status)
+    {
+        case BTA_HL_STATUS_OK:
+            bta_hl_cch_sm_execute(app_idx, mcl_idx, BTA_HL_CCH_OPEN_EVT, p_data);
+            break;
+        case BTA_HL_STATUS_NO_RESOURCE:
+        case BTA_HL_STATUS_FAIL:
+
+            p_acb = BTA_HL_GET_APP_CB_PTR(app_idx);
+            if (p_acb->p_cback)
+            {
+                bta_hl_build_cch_open_cfm(&evt_data, p_data->api_cch_open.app_id,
+                                          p_data->api_cch_open.app_handle,
+                                          0,
+                                          p_data->api_cch_open.bd_addr,
+                                          status);
+                p_acb->p_cback(BTA_HL_CCH_OPEN_CFM_EVT,(tBTA_HL *) &evt_data );
+            }
+            else
+            {
+                APPL_TRACE_ERROR("bta_hl_api_cch_open Null Callback");
+            }
+            break;
+        default:
+            APPL_TRACE_ERROR("status code=%d", status);
+            break;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_hl_api_cch_close
+**
+** Description      Process the API CCH close request
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_hl_api_cch_close(tBTA_HL_CB *p_cb, tBTA_HL_DATA *p_data)
+{
+    tBTA_HL         evt_data;
+    tBTA_HL_STATUS  status = BTA_HL_STATUS_OK;
+    UINT8           app_idx, mcl_idx;
+    tBTA_HL_APP_CB  *p_acb;
+    tBTA_HL_MCL_CB  *p_mcb;
+    UNUSED(p_cb);
+
+    if (bta_hl_find_mcl_idx_using_handle(p_data->api_cch_close.mcl_handle, &app_idx,  &mcl_idx))
+    {
+        p_mcb = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+        p_mcb->cch_oper = BTA_HL_CCH_OP_LOCAL_CLOSE;
+    }
+    else
+    {
+        status = BTA_HL_STATUS_INVALID_MCL_HANDLE;
+    }
+#if BTA_HL_DEBUG == TRUE
+    if (status != BTA_HL_STATUS_OK)
+    {
+        APPL_TRACE_DEBUG("bta_hl_api_cch_close status =%s", bta_hl_status_code(status));
+    }
+#endif
+    switch (status)
+    {
+        case BTA_HL_STATUS_OK:
+            bta_hl_check_cch_close(app_idx, mcl_idx, p_data, TRUE);
+            break;
+
+        case BTA_HL_STATUS_INVALID_MCL_HANDLE:
+            p_acb = BTA_HL_GET_APP_CB_PTR(app_idx);
+            if (p_acb->p_cback)
+            {
+                bta_hl_build_cch_close_cfm(&evt_data,
+                                       p_acb->app_handle,
+                                       p_data->api_cch_close.mcl_handle,
+                                       status);
+                p_acb->p_cback(BTA_HL_CCH_CLOSE_CFM_EVT,(tBTA_HL *) &evt_data );
+            }
+            else
+            {
+                APPL_TRACE_ERROR("bta_hl_api_cch_close Null Callback");
+            }
+            break;
+        default:
+            APPL_TRACE_ERROR("status code=%d", status);
+            break;
+    }
+
+}
+
+/*******************************************************************************
+**
+** Function         bta_hl_api_dch_open
+**
+** Description      Process the API DCH open request
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_hl_api_dch_open(tBTA_HL_CB *p_cb, tBTA_HL_DATA *p_data)
+{
+    tBTA_HL                     evt_data;
+    tBTA_HL_STATUS              status = BTA_HL_STATUS_OK;
+    UINT8                       app_idx, mcl_idx, mdl_idx;
+    tBTA_HL_APP_CB              *p_acb;
+    tBTA_HL_MCL_CB              *p_mcb = NULL;
+    tBTA_HL_MDL_CB              *p_dcb;
+    tBTA_HL_MDEP_CFG            *p_mdep_cfg;
+    UINT8                       mdep_cfg_idx;
+    UNUSED(p_cb);
+
+    if (bta_hl_find_mcl_idx_using_handle(p_data->api_dch_open.mcl_handle, &app_idx, &mcl_idx))
+    {
+        p_acb = BTA_HL_GET_APP_CB_PTR(app_idx);
+        p_mcb = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+
+        APPL_TRACE_DEBUG("bta_hl_api_dch_open: app_ix=%d, mcl_idx=%d, cch_state=%d, mcl_handle=%d",app_idx,mcl_idx,p_mcb->cch_state,p_data->api_dch_open.mcl_handle);
+        if (p_mcb->cch_state == BTA_HL_CCH_OPEN_ST)
+        {
+            if (bta_hl_find_avail_mdl_idx(app_idx, mcl_idx, &mdl_idx))
+            {
+                p_dcb = BTA_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx);
+
+                if (bta_hl_find_mdep_cfg_idx(app_idx, p_data->api_dch_open.local_mdep_id, &mdep_cfg_idx))
+                {
+                    if ( mdep_cfg_idx &&
+                         (p_acb->sup_feature.mdep[mdep_cfg_idx].mdep_cfg.mdep_role == BTA_HL_MDEP_ROLE_SINK))
+                    {
+                        p_data->api_dch_open.local_cfg = BTA_HL_DCH_CFG_NO_PREF;
+                    }
+
+                    if ((status = bta_hl_chk_local_cfg(app_idx,mcl_idx,mdep_cfg_idx,p_data->api_dch_open.local_cfg))
+                        == BTA_HL_STATUS_OK)
+                    {
+
+                        if (p_data->api_dch_open.local_mdep_id != BTA_HL_ECHO_TEST_MDEP_ID)
+                        {
+                            if (bta_hl_set_ctrl_psm_for_dch(app_idx, mcl_idx, mdl_idx, p_data->api_dch_open.ctrl_psm))
+                            {
+                                p_mdep_cfg = BTA_HL_GET_MDEP_CFG_PTR(app_idx, mdep_cfg_idx);
+                                p_dcb->in_use                   = TRUE;
+                                p_dcb->dch_oper                 = BTA_HL_DCH_OP_LOCAL_OPEN;
+                                p_dcb->sec_mask                 = p_data->api_dch_open.sec_mask;
+                                p_dcb->local_mdep_id            = p_data->api_dch_open.local_mdep_id;
+                                p_dcb->peer_mdep_id             = p_data->api_dch_open.peer_mdep_id;
+
+                                if (p_mdep_cfg->mdep_role == BTA_HL_MDEP_ROLE_SINK)
+                                {
+                                    p_dcb->peer_mdep_role = BTA_HL_MDEP_ROLE_SOURCE;
+                                }
+                                else
+                                {
+                                    p_dcb->peer_mdep_role = BTA_HL_MDEP_ROLE_SINK;
+                                }
+
+                                p_dcb->local_mdep_cfg_idx   = mdep_cfg_idx;
+                                p_dcb->local_cfg            = p_data->api_dch_open.local_cfg;
+
+                                bta_hl_find_rxtx_apdu_size(app_idx, mdep_cfg_idx,
+                                                           &p_dcb->max_rx_apdu_size,
+                                                           &p_dcb->max_tx_apdu_size);
+                                p_dcb->mdl_id               = bta_hl_allocate_mdl_id(app_idx,mcl_idx,mdl_idx);
+                                p_dcb->mdl_cfg_idx_included = FALSE;
+                            }
+                            else
+                            {
+                                status =  BTA_HL_STATUS_INVALID_CTRL_PSM;
+                            }
+
+                        }
+                        else
+                        {
+                            status =  BTA_HL_STATUS_INVALID_LOCAL_MDEP_ID;
+                        }
+                    }
+                }
+                else
+                {
+                    status =  BTA_HL_STATUS_INVALID_LOCAL_MDEP_ID;
+                }
+            }
+            else
+            {
+                status = BTA_HL_STATUS_NO_RESOURCE;
+            }
+        }
+        else
+        {
+            status =  BTA_HL_STATUS_NO_CCH;
+        }
+    }
+    else
+    {
+        status = BTA_HL_STATUS_INVALID_MCL_HANDLE;
+    }
+
+#if BTA_HL_DEBUG == TRUE
+    if (status != BTA_HL_STATUS_OK)
+    {
+        APPL_TRACE_DEBUG("bta_hl_api_dch_open status =%s", bta_hl_status_code(status));
+    }
+#endif
+    switch (status)
+    {
+        case BTA_HL_STATUS_OK:
+            if (p_mcb->sdp.num_recs)
+            {
+                bta_hl_dch_sm_execute(app_idx, mcl_idx, mdl_idx, BTA_HL_DCH_OPEN_EVT, p_data);
+            }
+            else
+            {
+                bta_hl_dch_sm_execute(app_idx, mcl_idx, mdl_idx, BTA_HL_DCH_SDP_INIT_EVT, p_data);
+            }
+            break;
+        case BTA_HL_STATUS_INVALID_DCH_CFG:
+        case BTA_HL_STATUS_NO_FIRST_RELIABLE:
+        case BTA_HL_STATUS_NO_CCH:
+        case BTA_HL_STATUS_NO_RESOURCE:
+        case BTA_HL_STATUS_FAIL:
+        case BTA_HL_STATUS_INVALID_LOCAL_MDEP_ID:
+        case BTA_HL_STATUS_INVALID_CTRL_PSM:
+            p_acb = BTA_HL_GET_APP_CB_PTR(app_idx);
+            if (p_acb->p_cback)
+            {
+                bta_hl_build_dch_open_cfm(&evt_data,
+                                          p_acb->app_handle,
+                                          p_data->api_dch_open.mcl_handle,
+                                          BTA_HL_INVALID_MDL_HANDLE,
+                                          0,0,0,0,0, status);
+                p_acb->p_cback(BTA_HL_DCH_OPEN_CFM_EVT,(tBTA_HL *) &evt_data );
+            }
+            else
+            {
+                APPL_TRACE_ERROR("bta_hl_api_dch_open Null Callback");
+            }
+
+            break;
+        default:
+            APPL_TRACE_ERROR("Status code=%d", status);
+            break;
+
+    }
+
+}
+/*******************************************************************************
+**
+** Function         bta_hl_api_dch_close
+**
+** Description      Process the API DCH close request
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_hl_api_dch_close(tBTA_HL_CB *p_cb, tBTA_HL_DATA *p_data)
+{
+    tBTA_HL         evt_data;
+    tBTA_HL_STATUS  status = BTA_HL_STATUS_OK;
+    UINT8           app_idx, mcl_idx, mdl_idx;
+    tBTA_HL_APP_CB  *p_acb;
+    tBTA_HL_MCL_CB  *p_mcb;
+    tBTA_HL_MDL_CB  *p_dcb;
+    UNUSED(p_cb);
+
+    if (bta_hl_find_mdl_idx_using_handle(p_data->api_dch_close.mdl_handle, &app_idx, &mcl_idx, &mdl_idx ))
+    {
+        p_dcb = BTA_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx);
+        if (p_dcb->dch_state != BTA_HL_DCH_OPEN_ST)
+        {
+            status =  BTA_HL_STATUS_FAIL;
+        }
+    }
+    else
+    {
+        status = BTA_HL_STATUS_INVALID_MDL_HANDLE;
+    }
+
+#if BTA_HL_DEBUG == TRUE
+    if (status != BTA_HL_STATUS_OK)
+    {
+        APPL_TRACE_DEBUG("bta_hl_api_dch_close status =%s", bta_hl_status_code(status));
+    }
+#endif
+
+    switch (status)
+    {
+        case BTA_HL_STATUS_OK:
+            bta_hl_dch_sm_execute(app_idx, mcl_idx, mdl_idx, BTA_HL_DCH_CLOSE_EVT, p_data);
+            break;
+        case BTA_HL_STATUS_FAIL:
+            p_acb = BTA_HL_GET_APP_CB_PTR(app_idx);
+            if (p_acb->p_cback)
+            {
+                p_mcb = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+                bta_hl_build_dch_close_cfm(&evt_data,
+                                           p_acb->app_handle,
+                                           p_mcb->mcl_handle,
+                                           p_data->api_dch_close.mdl_handle,
+                                           status);
+
+                p_acb->p_cback(BTA_HL_DCH_CLOSE_CFM_EVT,(tBTA_HL *) &evt_data );
+            }
+            else
+            {
+                APPL_TRACE_ERROR("bta_hl_api_dch_close Null Callback");
+            }
+            break;
+        default:
+            APPL_TRACE_ERROR("Status code=%d", status);
+            break;
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         bta_hl_api_dch_reconnect
+**
+** Description      Process the API DCH reconnect request
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_hl_api_dch_reconnect(tBTA_HL_CB *p_cb, tBTA_HL_DATA *p_data)
+{
+    tBTA_HL         evt_data;
+    tBTA_HL_STATUS  status = BTA_HL_STATUS_OK;
+    UINT8           app_idx, mcl_idx, mdl_idx;
+    tBTA_HL_APP_CB  *p_acb;
+    tBTA_HL_MCL_CB  *p_mcb = NULL;
+    tBTA_HL_MDL_CB  *p_dcb;
+    UINT8           mdep_cfg_idx;
+    UINT8           mdl_cfg_idx;
+    tBTA_HL_MDEP_CFG            *p_mdep_cfg;
+    UNUSED(p_cb);
+
+    if (bta_hl_find_mcl_idx_using_handle(p_data->api_dch_reconnect.mcl_handle, &app_idx, &mcl_idx))
+    {
+        p_acb = BTA_HL_GET_APP_CB_PTR(app_idx);
+        p_mcb = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+        if (p_mcb->cch_state == BTA_HL_CCH_OPEN_ST)
+        {
+            if (bta_hl_find_avail_mdl_idx(app_idx, mcl_idx, &mdl_idx))
+            {
+                p_dcb = BTA_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx);
+                if (bta_hl_validate_reconnect_params(app_idx, mcl_idx,  &(p_data->api_dch_reconnect),
+                                                     &mdep_cfg_idx, &mdl_cfg_idx ))
+                {
+                    if (!bta_hl_is_the_first_reliable_existed(app_idx, mcl_idx) &&
+                        (p_acb->mdl_cfg[mdl_cfg_idx].dch_mode != BTA_HL_DCH_MODE_RELIABLE))
+                    {
+                        status =  BTA_HL_STATUS_NO_FIRST_RELIABLE;
+                    }
+                    else
+                    {
+                        if (bta_hl_set_ctrl_psm_for_dch(app_idx, mcl_idx, mdl_idx, p_data->api_dch_open.ctrl_psm))
+                        {
+                            p_dcb->in_use                   = TRUE;
+                            p_dcb->dch_oper                 = BTA_HL_DCH_OP_LOCAL_RECONNECT;
+                            p_dcb->sec_mask                 = (BTA_SEC_AUTHENTICATE | BTA_SEC_ENCRYPT);
+                            p_dcb->local_mdep_id            = p_acb->mdl_cfg[mdl_cfg_idx].local_mdep_id;
+                            p_dcb->local_mdep_cfg_idx       = mdep_cfg_idx;
+                            p_dcb->local_cfg                = BTA_HL_DCH_CFG_UNKNOWN;
+                            p_dcb->mdl_id                   = p_data->api_dch_reconnect.mdl_id;
+                            p_dcb->mdl_cfg_idx_included     = TRUE;
+                            p_dcb->mdl_cfg_idx              = mdl_cfg_idx;
+                            p_dcb->dch_mode                 = p_acb->mdl_cfg[mdl_cfg_idx].dch_mode;
+
+                           p_mdep_cfg = BTA_HL_GET_MDEP_CFG_PTR(app_idx, mdep_cfg_idx);
+
+                            if (p_mdep_cfg->mdep_role == BTA_HL_MDEP_ROLE_SINK)
+                            {
+                                p_dcb->peer_mdep_role = BTA_HL_MDEP_ROLE_SOURCE;
+                                  APPL_TRACE_DEBUG("peer mdep role = SOURCE ");
+							}
+                            else
+                            {
+                                p_dcb->peer_mdep_role = BTA_HL_MDEP_ROLE_SINK;
+                                APPL_TRACE_DEBUG("peer mdep role = SINK ");
+                            }
+
+                            bta_hl_find_rxtx_apdu_size(app_idx, mdep_cfg_idx,
+                                                       &p_dcb->max_rx_apdu_size,
+                                                       &p_dcb->max_tx_apdu_size);
+                        }
+                        else
+                        {
+                            status =  BTA_HL_STATUS_INVALID_CTRL_PSM;
+                        }
+                    }
+                }
+                else
+                {
+                    status =  BTA_HL_STATUS_INVALID_RECONNECT_CFG;
+                }
+            }
+            else
+            {
+                status = BTA_HL_STATUS_NO_RESOURCE;
+            }
+        }
+        else
+        {
+            status =  BTA_HL_STATUS_NO_CCH;
+        }
+    }
+    else
+    {
+        status = BTA_HL_STATUS_INVALID_MCL_HANDLE;
+    }
+
+#if BTA_HL_DEBUG == TRUE
+    if (status != BTA_HL_STATUS_OK)
+    {
+        APPL_TRACE_DEBUG("bta_hl_api_dch_reconnect status=%s", bta_hl_status_code(status));
+    }
+#endif
+
+    switch (status)
+    {
+        case BTA_HL_STATUS_OK:
+            if (p_mcb->sdp.num_recs)
+            {
+                bta_hl_dch_sm_execute(app_idx, mcl_idx, mdl_idx, BTA_HL_DCH_RECONNECT_EVT, p_data);
+            }
+            else
+            {
+                bta_hl_dch_sm_execute(app_idx, mcl_idx, mdl_idx, BTA_HL_DCH_SDP_INIT_EVT, p_data);
+            }
+            break;
+        case BTA_HL_STATUS_INVALID_RECONNECT_CFG:
+        case BTA_HL_STATUS_NO_FIRST_RELIABLE:
+        case BTA_HL_STATUS_NO_CCH:
+        case BTA_HL_STATUS_NO_RESOURCE:
+            p_acb = BTA_HL_GET_APP_CB_PTR(app_idx);
+            if (p_acb->p_cback)
+            {
+                bta_hl_build_dch_open_cfm(&evt_data,
+                                          p_acb->app_handle,
+                                          p_data->api_dch_reconnect.mcl_handle,
+                                          BTA_HL_INVALID_MDL_HANDLE,
+                                          0,p_data->api_dch_reconnect.mdl_id,0,0,0, status);
+                p_acb->p_cback(BTA_HL_DCH_RECONNECT_CFM_EVT,(tBTA_HL *) &evt_data );
+            }
+            else
+            {
+                APPL_TRACE_ERROR("bta_hl_api_dch_reconnect Null Callback");
+            }
+            break;
+        default:
+            APPL_TRACE_ERROR("Status code=%d", status);
+            break;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_hl_api_dch_echo_test
+**
+** Description      Process the API Echo test request
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_hl_api_dch_echo_test(tBTA_HL_CB *p_cb, tBTA_HL_DATA *p_data)
+{
+    tBTA_HL             evt_data;
+    tBTA_HL_STATUS      status = BTA_HL_STATUS_OK;
+    UINT8               app_idx, mcl_idx, mdl_idx;
+    tBTA_HL_APP_CB      *p_acb;
+    tBTA_HL_MCL_CB      *p_mcb = NULL;
+    tBTA_HL_MDL_CB      *p_dcb;
+    tBTA_HL_ECHO_CFG    *p_echo_cfg;
+    UNUSED(p_cb);
+
+    if (bta_hl_find_mcl_idx_using_handle(p_data->api_dch_echo_test.mcl_handle, &app_idx,  &mcl_idx))
+    {
+        p_acb = BTA_HL_GET_APP_CB_PTR(app_idx);
+        p_mcb = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+        if (p_mcb->cch_state == BTA_HL_CCH_OPEN_ST)
+        {
+            if (!p_mcb->echo_test )
+            {
+                if (bta_hl_find_avail_mdl_idx(app_idx, mcl_idx, &mdl_idx))
+                {
+                    p_dcb = BTA_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx);
+
+                    if ((p_data->api_dch_echo_test.local_cfg == BTA_HL_DCH_CFG_RELIABLE) ||
+                        (p_data->api_dch_echo_test.local_cfg == BTA_HL_DCH_CFG_STREAMING))
+                    {
+                        BOOLEAN fcs_use = (BOOLEAN) (p_dcb->chnl_cfg.fcs & BTA_HL_MCA_FCS_USE_MASK);
+                        if ((p_dcb->p_echo_tx_pkt = bta_hl_get_buf(p_data->api_dch_echo_test.pkt_size, fcs_use)) != NULL )
+                        {
+                            if (bta_hl_set_ctrl_psm_for_dch(app_idx, mcl_idx, mdl_idx, p_data->api_dch_open.ctrl_psm))
+                            {
+                                p_dcb->in_use                   = TRUE;
+                                p_dcb->dch_oper                 = BTA_HL_DCH_OP_LOCAL_OPEN;
+                                p_dcb->sec_mask                 = (BTA_SEC_AUTHENTICATE | BTA_SEC_ENCRYPT);
+                                p_dcb->local_mdep_cfg_idx       = BTA_HL_ECHO_TEST_MDEP_CFG_IDX;
+                                p_dcb->local_cfg                = p_data->api_dch_echo_test.local_cfg;
+                                p_dcb->local_mdep_id            = BTA_HL_ECHO_TEST_MDEP_ID;
+                                p_dcb->peer_mdep_id             = BTA_HL_ECHO_TEST_MDEP_ID;
+                                p_dcb->mdl_id                   = bta_hl_allocate_mdl_id(app_idx,mcl_idx,mdl_idx);
+                                p_dcb->mdl_cfg_idx_included     = FALSE;
+                                p_echo_cfg                      = BTA_HL_GET_ECHO_CFG_PTR(app_idx);
+                                p_dcb->max_rx_apdu_size         = p_echo_cfg->max_rx_apdu_size;
+                                p_dcb->max_tx_apdu_size         = p_echo_cfg->max_tx_apdu_size;
+                                p_mcb->echo_test                = TRUE;
+                                p_mcb->echo_mdl_idx             = mdl_idx;
+                            }
+                            else
+                            {
+                                status =  BTA_HL_STATUS_INVALID_CTRL_PSM;
+                            }
+                        }
+                        else
+                        {
+                            status = BTA_HL_STATUS_NO_RESOURCE;
+                        }
+                    }
+                    else
+                    {
+                        status = BTA_HL_STATUS_INVALID_DCH_CFG;
+                    }
+                }
+                else
+                {
+                    status = BTA_HL_STATUS_NO_RESOURCE;
+                }
+            }
+            else
+            {
+                status = BTA_HL_STATUS_ECHO_TEST_BUSY;
+            }
+        }
+        else
+        {
+            status =  BTA_HL_STATUS_NO_CCH;
+        }
+    }
+    else
+    {
+        status = BTA_HL_STATUS_NO_MCL;
+    }
+
+#if BTA_HL_DEBUG == TRUE
+    if (status != BTA_HL_STATUS_OK)
+    {
+        APPL_TRACE_DEBUG("bta_hl_api_dch_echo_test status=%s", bta_hl_status_code(status));
+    }
+#endif
+
+    switch (status)
+    {
+        case BTA_HL_STATUS_OK:
+            if (p_mcb->sdp.num_recs)
+            {
+                bta_hl_dch_sm_execute(app_idx, mcl_idx, mdl_idx, BTA_HL_DCH_ECHO_TEST_EVT, p_data);
+            }
+            else
+            {
+                bta_hl_dch_sm_execute(app_idx, mcl_idx, mdl_idx, BTA_HL_DCH_SDP_INIT_EVT, p_data);
+            }
+            break;
+        case BTA_HL_STATUS_ECHO_TEST_BUSY:
+        case BTA_HL_STATUS_NO_RESOURCE:
+        case BTA_HL_STATUS_INVALID_DCH_CFG:
+            p_acb = BTA_HL_GET_APP_CB_PTR(app_idx);
+            if (p_acb->p_cback)
+            {
+                bta_hl_build_echo_test_cfm(&evt_data,
+                                           p_acb->app_handle,
+                                           p_mcb->mcl_handle,
+                                           status);
+                p_acb->p_cback(BTA_HL_DCH_ECHO_TEST_CFM_EVT,(tBTA_HL *) &evt_data );
+            }
+            else
+            {
+                APPL_TRACE_ERROR("bta_hl_api_dch_echo_test Null Callback");
+            }
+            break;
+
+        default:
+            APPL_TRACE_ERROR("Status code=%s", status);
+            break;
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         bta_hl_api_sdp_query
+**
+** Description      Process the API SDP query request
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_hl_api_sdp_query(tBTA_HL_CB *p_cb, tBTA_HL_DATA *p_data)
+{
+    tBTA_HL         evt_data;
+    tBTA_HL_STATUS  status = BTA_HL_STATUS_OK;
+    UINT8           app_idx, mcl_idx;
+    tBTA_HL_APP_CB  *p_acb;
+    tBTA_HL_MCL_CB  *p_mcb;
+    UNUSED(p_cb);
+
+    if (bta_hl_find_app_idx_using_handle(p_data->api_sdp_query.app_handle, &app_idx))
+    {
+        if (!bta_hl_find_mcl_idx(app_idx, p_data->api_sdp_query.bd_addr, &mcl_idx))
+        {
+            if (bta_hl_find_avail_mcl_idx(app_idx, &mcl_idx))
+            {
+                p_mcb = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+                p_mcb->in_use = TRUE;
+                bdcpy(p_mcb->bd_addr, p_data->api_sdp_query.bd_addr);
+                APPL_TRACE_DEBUG("bta_hl_api_sdp_query p_mcb->app_id %d app_idx %d mcl_idx %d", p_mcb->app_id, app_idx, mcl_idx);
+                p_mcb->app_id = p_data->api_sdp_query.app_id;
+                p_mcb->sdp_oper  = BTA_HL_SDP_OP_SDP_QUERY_NEW ;
+            }
+            else
+            {
+                status = BTA_HL_STATUS_NO_RESOURCE;
+            }
+        }
+        else
+        {
+            p_mcb = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+            p_mcb->app_id = p_data->api_sdp_query.app_id;
+            if (p_mcb->sdp_oper != BTA_HL_SDP_OP_NONE)
+            {
+                status = BTA_HL_STATUS_SDP_NO_RESOURCE;
+            }
+            else
+            {
+                p_mcb->sdp_oper  = BTA_HL_SDP_OP_SDP_QUERY_CURRENT;
+            }
+        }
+    }
+    else
+    {
+        status = BTA_HL_STATUS_INVALID_APP_HANDLE;
+    }
+
+    if (status == BTA_HL_STATUS_OK)
+    {
+        status = bta_hl_init_sdp( p_mcb->sdp_oper, app_idx, mcl_idx, 0xFF);
+        if ( (status != BTA_HL_STATUS_OK) &&
+             (p_mcb->sdp_oper == BTA_HL_SDP_OP_SDP_QUERY_NEW) )
+        {
+            memset(p_mcb, 0 ,sizeof(tBTA_HL_MCL_CB));
+        }
+    }
+#if BTA_HL_DEBUG == TRUE
+    if (status != BTA_HL_STATUS_OK)
+    {
+        APPL_TRACE_DEBUG("bta_hl_api_sdp_query status=%s", bta_hl_status_code(status));
+    }
+#endif
+    switch (status)
+    {
+        case BTA_HL_STATUS_NO_RESOURCE:
+        case BTA_HL_STATUS_FAIL:
+        case BTA_HL_STATUS_SDP_NO_RESOURCE:
+            p_acb = BTA_HL_GET_APP_CB_PTR(app_idx);
+            if (p_acb->p_cback)
+            {
+                bta_hl_build_sdp_query_cfm(&evt_data,
+                                           p_data->api_sdp_query.app_id,
+                                           p_data->api_sdp_query.app_handle,
+                                           p_data->api_sdp_query.bd_addr,
+                                           NULL,
+                                           status);
+                p_acb->p_cback(BTA_HL_SDP_QUERY_CFM_EVT,(tBTA_HL *) &evt_data );
+            }
+            else
+            {
+                APPL_TRACE_ERROR("bta_hl_api_sdp_query Null Callback");
+            }
+            break;
+        case BTA_HL_STATUS_OK:
+            break;
+        default:
+            APPL_TRACE_ERROR("Status code=%d", status);
+            break;
+    }
+}
+
+
+
+
+/*******************************************************************************
+**
+** Function         bta_hl_sdp_query_results
+**
+** Description      Process the SDP query results
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_hl_sdp_query_results(tBTA_HL_CB *p_cb, tBTA_HL_DATA *p_data)
+{
+    tBTA_HL             evt_data;
+    tBTA_HL_STATUS      status = BTA_HL_STATUS_OK;
+    UINT8               app_idx = p_data->cch_sdp.app_idx;
+    UINT8               mcl_idx = p_data->cch_sdp.mcl_idx;
+    tBTA_HL_APP_CB      *p_acb = BTA_HL_GET_APP_CB_PTR( app_idx);
+    tBTA_HL_MCL_CB      *p_mcb =  BTA_HL_GET_MCL_CB_PTR( app_idx,  mcl_idx);
+    tBTA_HL_SDP         *p_sdp=NULL;
+    UINT16              event;
+    BOOLEAN             release_sdp_buf=FALSE;
+    UNUSED(p_cb);
+
+    event = p_data->hdr.event;
+
+    if (event == BTA_HL_SDP_QUERY_OK_EVT) {
+        p_sdp = (tBTA_HL_SDP *)osi_malloc(sizeof(tBTA_HL_SDP));
+        memcpy(p_sdp, &p_mcb->sdp, sizeof(tBTA_HL_SDP));
+        release_sdp_buf = TRUE;
+    } else {
+        status = BTA_HL_STATUS_SDP_FAIL;
+    }
+
+#if BTA_HL_DEBUG == TRUE
+    if (status != BTA_HL_STATUS_OK)
+    {
+        APPL_TRACE_DEBUG("bta_hl_sdp_query_results status=%s", bta_hl_status_code(status));
+    }
+#endif
+
+    APPL_TRACE_DEBUG("bta_hl_sdp_query_results p_mcb->app_id %d app_idx %d mcl_idx %d", p_mcb->app_id, app_idx, mcl_idx);
+    bta_hl_build_sdp_query_cfm(&evt_data,p_mcb->app_id, p_acb->app_handle,
+                               p_mcb->bd_addr,p_sdp,status);
+    p_acb->p_cback(BTA_HL_SDP_QUERY_CFM_EVT,(tBTA_HL *) &evt_data );
+
+    if (release_sdp_buf)
+        osi_free_and_reset((void **)&p_sdp);
+
+    if (p_data->cch_sdp.release_mcl_cb) {
+        memset(p_mcb, 0, sizeof(tBTA_HL_MCL_CB));
+    } else {
+        if (p_mcb->close_pending)
+            bta_hl_check_cch_close(app_idx, mcl_idx, p_data, TRUE);
+
+        if (!p_mcb->ctrl_psm) {
+            /* Control channel acceptor: do not store the SDP records */
+            memset(&p_mcb->sdp, 0, sizeof(tBTA_HL_SDP));
+        }
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         bta_hl_api_delete_mdl
+**
+** Description      Process the API DELETE MDL request
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_hl_api_delete_mdl(tBTA_HL_CB *p_cb, tBTA_HL_DATA *p_data)
+{
+    tBTA_HL         evt_data;
+    tBTA_HL_STATUS  status = BTA_HL_STATUS_OK;
+    UINT8           app_idx, mcl_idx;
+    tBTA_HL_APP_CB  *p_acb;
+    tBTA_HL_MCL_CB  *p_mcb;
+    UNUSED(p_cb);
+
+    if (bta_hl_find_mcl_idx_using_handle(p_data->api_delete_mdl.mcl_handle, &app_idx, &mcl_idx ))
+    {
+        if (bta_hl_is_mdl_value_valid(p_data->api_delete_mdl.mdl_id))
+        {
+            p_mcb = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+            if (bta_hl_is_mdl_exsit_in_mcl(app_idx,
+                                           p_mcb->bd_addr,
+                                           p_data->api_delete_mdl.mdl_id))
+            {
+
+
+                p_mcb->delete_mdl.mcl_handle =  p_data->api_delete_mdl.mcl_handle;
+                p_mcb->delete_mdl.mdl_id = p_data->api_delete_mdl.mdl_id;
+                p_mcb->delete_mdl.delete_req_pending = TRUE;
+
+                if (MCA_Delete((tMCA_CL) p_mcb->mcl_handle,
+                               p_data->api_delete_mdl.mdl_id)!= MCA_SUCCESS)
+                {
+                    status = BTA_HL_STATUS_FAIL;
+                    memset(&p_mcb->delete_mdl, 0, sizeof(tBTA_HL_DELETE_MDL));
+                }
+            }
+            else
+            {
+                status = BTA_HL_STATUS_NO_MDL_ID_FOUND;
+            }
+        }
+        else
+        {
+            status = BTA_HL_STATUS_INVALID_MDL_ID;
+        }
+    }
+    else
+    {
+        status = BTA_HL_STATUS_INVALID_MCL_HANDLE;
+    }
+
+#if BTA_HL_DEBUG == TRUE
+    if (status != BTA_HL_STATUS_OK)
+    {
+        APPL_TRACE_DEBUG("bta_hl_api_delete_mdl status=%s", bta_hl_status_code(status));
+    }
+#endif
+    switch (status)
+    {
+        case BTA_HL_STATUS_OK:
+            break;
+        case BTA_HL_STATUS_FAIL:
+        case BTA_HL_STATUS_NO_MDL_ID_FOUND:
+        case BTA_HL_STATUS_INVALID_MDL_ID:
+            p_acb = BTA_HL_GET_APP_CB_PTR(app_idx);
+            if (p_acb->p_cback)
+            {
+                bta_hl_build_delete_mdl_cfm(&evt_data,
+                                            p_acb->app_handle,
+                                            p_data->api_delete_mdl.mcl_handle,
+                                            p_data->api_delete_mdl.mdl_id,
+                                            status);
+                p_acb->p_cback(BTA_HL_DELETE_MDL_CFM_EVT,(tBTA_HL *) &evt_data );
+            }
+            else
+            {
+                APPL_TRACE_ERROR("bta_hl_api_delete_mdl Null Callback");
+            }
+            break;
+        default:
+            APPL_TRACE_ERROR("status code =%d", status);
+            break;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_hl_mca_delete_mdl_cfm
+**
+** Description      Process the DELETE MDL confirmation event
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_hl_mca_delete_mdl_cfm(tBTA_HL_CB *p_cb, tBTA_HL_DATA *p_data)
+{
+    tBTA_HL         evt_data;
+    tBTA_HL_STATUS  status = BTA_HL_STATUS_OK;
+    UINT8           app_idx, mcl_idx;
+    tMCA_RSP_EVT    *p_delete_cfm = &p_data->mca_evt.mca_data.delete_cfm;
+    tBTA_HL_MCL_CB  *p_mcb;
+    BOOLEAN         send_cfm_evt = TRUE;
+    tBTA_HL_APP_CB  *p_acb;
+    UNUSED(p_cb);
+
+    if (bta_hl_find_mcl_idx_using_handle(p_data->mca_evt.mcl_handle, &app_idx, &mcl_idx))
+    {
+        p_mcb = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+        if ( p_mcb->delete_mdl.delete_req_pending)
+        {
+            if (p_delete_cfm->rsp_code == MCA_RSP_SUCCESS   )
+            {
+
+                if (!bta_hl_delete_mdl_cfg(app_idx,
+                                           p_mcb->bd_addr ,
+                                           p_delete_cfm->mdl_id))
+                {
+                    status = BTA_HL_STATUS_FAIL;
+                }
+            }
+            else
+            {
+                status = BTA_HL_STATUS_FAIL;
+            }
+
+            memset(&p_mcb->delete_mdl, 0, sizeof(tBTA_HL_DELETE_MDL));
+        }
+        else
+        {
+            send_cfm_evt = FALSE;
+        }
+    }
+    else
+    {
+        send_cfm_evt = FALSE;
+    }
+
+#if BTA_HL_DEBUG == TRUE
+    if (status != BTA_HL_STATUS_OK)
+    {
+        APPL_TRACE_DEBUG("bta_hl_api_delete_mdl status=%s", bta_hl_status_code(status));
+    }
+#endif
+
+    if (send_cfm_evt)
+    {
+        p_acb = BTA_HL_GET_APP_CB_PTR(app_idx);
+        if (p_acb->p_cback)
+        {
+            bta_hl_build_delete_mdl_cfm(&evt_data,
+                                        p_acb->app_handle,
+                                        p_mcb->mcl_handle,
+                                        p_delete_cfm->mdl_id,
+                                        status);
+
+            p_acb->p_cback(BTA_HL_DELETE_MDL_CFM_EVT,(tBTA_HL *) &evt_data );
+        }
+        else
+        {
+            APPL_TRACE_ERROR("bta_hl_mca_delete_mdl_cfm Null Callback");
+
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_hl_mca_delete_mdl_ind
+**
+** Description      Process the DELETE MDL indication event
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_hl_mca_delete_mdl_ind(tBTA_HL_CB *p_cb, tBTA_HL_DATA *p_data)
+{
+    tBTA_HL         evt_data;
+    UINT8           app_idx, mcl_idx, mdl_idx;
+    tMCA_EVT_HDR    *p_delete_ind = &p_data->mca_evt.mca_data.delete_ind;
+    tBTA_HL_MCL_CB  *p_mcb;
+    tBTA_HL_MDL_CB  *p_dcb;
+    BOOLEAN         send_ind_evt = FALSE;
+    tBTA_HL_APP_CB  *p_acb;
+    UNUSED(p_cb);
+
+    if (bta_hl_find_mcl_idx_using_handle(p_data->mca_evt.mcl_handle, &app_idx, &mcl_idx) )
+    {
+        p_mcb = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+
+        if (bta_hl_find_mdl_idx(app_idx, mcl_idx, p_delete_ind->mdl_id, &mdl_idx ))
+        {
+            p_dcb = BTA_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx);
+            p_dcb->dch_oper = BTA_HL_DCH_OP_REMOTE_DELETE;
+        }
+        if (bta_hl_delete_mdl_cfg(app_idx,
+                                  p_mcb->bd_addr ,
+                                  p_delete_ind->mdl_id))
+        {
+            send_ind_evt = TRUE;
+        }
+    }
+
+#if BTA_HL_DEBUG == TRUE
+    if (!send_ind_evt)
+    {
+        APPL_TRACE_DEBUG("bta_hl_mca_delete_mdl_ind is_send_ind_evt =%d", send_ind_evt);
+    }
+#endif
+
+    if (send_ind_evt)
+    {
+        p_acb = BTA_HL_GET_APP_CB_PTR(app_idx);
+        if (p_acb->p_cback)
+        {
+            evt_data.delete_mdl_ind.mcl_handle = p_mcb->mcl_handle;
+            evt_data.delete_mdl_ind.app_handle = p_acb->app_handle;
+            evt_data.delete_mdl_ind.mdl_id = p_delete_ind->mdl_id;
+            p_acb->p_cback(BTA_HL_DELETE_MDL_IND_EVT,(tBTA_HL *) &evt_data );
+        }
+        else
+        {
+            APPL_TRACE_ERROR("bta_hl_mca_delete_mdl_ind Null Callback");
+        }
+    }
+}
+
+
+
+/*******************************************************************************
+**
+** Function         bta_hl_api_dch_abort
+**
+** Description      Process the API DCH abort request
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_hl_api_dch_abort(tBTA_HL_CB *p_cb, tBTA_HL_DATA *p_data)
+{
+    tBTA_HL_STATUS  status = BTA_HL_STATUS_OK;
+    UINT8           app_idx, mcl_idx, mdl_idx;
+    tBTA_HL_APP_CB  *p_acb;
+    tBTA_HL_MCL_CB  *p_mcb;
+    tBTA_HL_MDL_CB  *p_dcb;
+    tBTA_HL         evt_data;
+    UNUSED(p_cb);
+
+    if (bta_hl_find_mcl_idx_using_handle(p_data->api_dch_abort.mcl_handle, &app_idx, &mcl_idx ))
+    {
+
+        if (!bta_hl_find_dch_setup_mdl_idx(app_idx, mcl_idx, &mdl_idx ))
+        {
+            status = BTA_HL_STATUS_NO_MDL_ID_FOUND;
+        }
+        else
+        {
+            p_dcb = BTA_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx);
+            if (p_dcb->abort_oper)
+            {
+                /* abort already in progress*/
+                status = BTA_HL_STATUS_FAIL;
+            }
+            else
+            {
+                p_dcb->abort_oper = BTA_HL_ABORT_LOCAL_MASK;
+            }
+        }
+    }
+    else
+    {
+        status = BTA_HL_STATUS_INVALID_MCL_HANDLE;
+    }
+
+
+#if BTA_HL_DEBUG == TRUE
+    if (status != BTA_HL_STATUS_OK)
+    {
+        APPL_TRACE_DEBUG("bta_hl_api_dch_abort status=%s", bta_hl_status_code(status));
+    }
+#endif
+    switch (status)
+    {
+        case BTA_HL_STATUS_OK:
+
+            bta_hl_dch_sm_execute(app_idx, mcl_idx, mdl_idx, BTA_HL_DCH_ABORT_EVT, p_data);
+            break;
+        case BTA_HL_STATUS_NO_MDL_ID_FOUND:
+        case BTA_HL_STATUS_FAIL:
+
+            p_acb = BTA_HL_GET_APP_CB_PTR(app_idx);
+            if (p_acb->p_cback)
+            {
+                p_mcb = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+                bta_hl_build_abort_cfm(&evt_data,
+
+
+
+                                       p_acb->app_handle,
+                                       p_mcb->mcl_handle,
+                                       BTA_HL_STATUS_FAIL);
+                p_acb->p_cback(BTA_HL_DCH_ABORT_CFM_EVT,(tBTA_HL *) &evt_data);
+            }
+            else
+            {
+                APPL_TRACE_ERROR("bta_hl_api_dch_abort Null Callback");
+            }
+            break;
+        default:
+            APPL_TRACE_ERROR("Status code=%d", status);
+            break;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_hl_hdl_event
+**
+** Description      HL main event handling function.
+**
+** Returns          void
+**
+*******************************************************************************/
+BOOLEAN bta_hl_hdl_event(BT_HDR *p_msg)
+{
+    UINT8 app_idx, mcl_idx, mdl_idx;
+    BOOLEAN success = TRUE;
+
+#if BTA_HL_DEBUG == TRUE
+    APPL_TRACE_DEBUG("BTA HL Event Handler: Event [%s]",
+                      bta_hl_evt_code(p_msg->event));
+#endif
+
+    switch (p_msg->event)
+    {
+        case BTA_HL_API_ENABLE_EVT:
+            bta_hl_api_enable(&bta_hl_cb, (tBTA_HL_DATA *) p_msg);
+            break;
+        case BTA_HL_API_DISABLE_EVT:
+            bta_hl_api_disable(&bta_hl_cb, (tBTA_HL_DATA *) p_msg);
+            break;
+        case BTA_HL_API_UPDATE_EVT:
+            bta_hl_api_update(&bta_hl_cb, (tBTA_HL_DATA *) p_msg);
+            break;
+        case BTA_HL_API_REGISTER_EVT:
+            bta_hl_api_register(&bta_hl_cb, (tBTA_HL_DATA *) p_msg);
+            break;
+        case BTA_HL_API_DEREGISTER_EVT:
+            bta_hl_api_deregister(&bta_hl_cb, (tBTA_HL_DATA *) p_msg);
+            break;
+        case BTA_HL_API_CCH_OPEN_EVT:
+            bta_hl_api_cch_open(&bta_hl_cb, (tBTA_HL_DATA *) p_msg);
+            break;
+        case BTA_HL_API_CCH_CLOSE_EVT:
+            bta_hl_api_cch_close(&bta_hl_cb, (tBTA_HL_DATA *) p_msg);
+            break;
+        case BTA_HL_API_DCH_OPEN_EVT:
+            bta_hl_api_dch_open(&bta_hl_cb, (tBTA_HL_DATA *) p_msg);
+            break;
+        case BTA_HL_API_DCH_CLOSE_EVT:
+            bta_hl_api_dch_close(&bta_hl_cb, (tBTA_HL_DATA *) p_msg);
+            break;
+        case BTA_HL_API_DELETE_MDL_EVT:
+            bta_hl_api_delete_mdl(&bta_hl_cb, (tBTA_HL_DATA *) p_msg);
+            break;
+        case BTA_HL_API_DCH_RECONNECT_EVT:
+            bta_hl_api_dch_reconnect(&bta_hl_cb, (tBTA_HL_DATA *) p_msg);
+            break;
+
+        case BTA_HL_API_DCH_ECHO_TEST_EVT:
+            bta_hl_api_dch_echo_test(&bta_hl_cb, (tBTA_HL_DATA *) p_msg);
+            break;
+
+        case BTA_HL_API_SDP_QUERY_EVT:
+            bta_hl_api_sdp_query(&bta_hl_cb, (tBTA_HL_DATA *) p_msg);
+            break;
+
+        case BTA_HL_MCA_DELETE_CFM_EVT:
+            bta_hl_mca_delete_mdl_cfm(&bta_hl_cb, (tBTA_HL_DATA *) p_msg);
+            break;
+
+        case BTA_HL_MCA_DELETE_IND_EVT:
+            bta_hl_mca_delete_mdl_ind(&bta_hl_cb, (tBTA_HL_DATA *) p_msg);
+            break;
+
+        case BTA_HL_SDP_QUERY_OK_EVT:
+        case BTA_HL_SDP_QUERY_FAIL_EVT:
+            bta_hl_sdp_query_results(&bta_hl_cb, (tBTA_HL_DATA *) p_msg);
+            break;
+        case BTA_HL_API_DCH_ABORT_EVT:
+            bta_hl_api_dch_abort(&bta_hl_cb, (tBTA_HL_DATA *) p_msg);
+            break;
+
+
+        default:
+            if (p_msg->event < BTA_HL_DCH_EVT_MIN)
+            {
+                if (bta_hl_find_cch_cb_indexes((tBTA_HL_DATA *) p_msg, &app_idx, &mcl_idx))
+                {
+                    bta_hl_cch_sm_execute( app_idx,
+                                           mcl_idx,
+                                           p_msg->event, (tBTA_HL_DATA *) p_msg);
+                }
+                else
+                {
+#if BTA_HL_DEBUG == TRUE
+                    APPL_TRACE_ERROR("unable to find control block indexes for CCH: [event=%s]",
+                                      bta_hl_evt_code(p_msg->event));
+#else
+                    APPL_TRACE_ERROR("unable to find control block indexes for CCH: [event=%d]", p_msg->event);
+#endif
+                    success = FALSE;
+                }
+            }
+            else
+            {
+                if (bta_hl_find_dch_cb_indexes((tBTA_HL_DATA *) p_msg, &app_idx, &mcl_idx, &mdl_idx))
+                {
+                    bta_hl_dch_sm_execute( app_idx,
+                                           mcl_idx,
+                                           mdl_idx,
+                                           p_msg->event, (tBTA_HL_DATA *) p_msg);
+                }
+                else
+                {
+
+#if BTA_HL_DEBUG == TRUE
+                    APPL_TRACE_ERROR("unable to find control block indexes for DCH : [event=%s]",
+                                      bta_hl_evt_code(p_msg->event));
+#else
+                    APPL_TRACE_ERROR("unable to find control block indexes for DCH: [event=%d]", p_msg->event);
+#endif
+                    success = FALSE;
+                }
+            }
+
+            break;
+    }
+
+    return(success);
+}
+
+
+/*****************************************************************************
+**  Debug Functions
+*****************************************************************************/
+#if (BTA_HL_DEBUG == TRUE) && (BT_USE_TRACES == TRUE)
+
+/*******************************************************************************
+**
+** Function         bta_hl_cch_state_code
+**
+** Description      Map CCH state code to the corresponding state string
+**
+** Returns          string pointer for the associated state name
+**
+*******************************************************************************/
+static char *bta_hl_cch_state_code(tBTA_HL_CCH_STATE state_code)
+{
+    switch (state_code)
+    {
+        case BTA_HL_CCH_IDLE_ST:
+            return "BTA_HL_CCH_IDLE_ST";
+        case BTA_HL_CCH_OPENING_ST:
+            return "BTA_HL_CCH_OPENING_ST";
+        case BTA_HL_CCH_OPEN_ST:
+            return "BTA_HL_CCH_OPEN_ST";
+        case BTA_HL_CCH_CLOSING_ST:
+            return "BTA_HL_CCH_CLOSING_ST";
+        default:
+            return "Unknown CCH state code";
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_hl_dch_state_code
+**
+** Description      Map DCH state code to the corresponding state string
+**
+** Returns          string pointer for the associated state name
+**
+*******************************************************************************/
+static char *bta_hl_dch_state_code(tBTA_HL_DCH_STATE state_code)
+{
+    switch (state_code)
+    {
+        case BTA_HL_DCH_IDLE_ST:
+            return "BTA_HL_DCH_IDLE_ST";
+        case BTA_HL_DCH_OPENING_ST:
+            return "BTA_HL_DCH_OPENING_ST";
+        case BTA_HL_DCH_OPEN_ST:
+            return "BTA_HL_DCH_OPEN_ST";
+        case BTA_HL_DCH_CLOSING_ST:
+            return "BTA_HL_DCH_CLOSING_ST";
+        default:
+            return "Unknown DCH state code";
+    }
+}
+#endif  /* Debug Functions */
+#endif /* HL_INCLUDED */
diff --git a/rtkbt/code/bt/bta/hl/bta_hl_sdp.c b/rtkbt/code/bt/bta/hl/bta_hl_sdp.c
new file mode 100755
index 0000000..0d7f7be
--- /dev/null
+++ b/rtkbt/code/bt/bta/hl/bta_hl_sdp.c
@@ -0,0 +1,635 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1998-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#include <string.h>
+
+#include "bt_target.h"
+#if defined(HL_INCLUDED) && (HL_INCLUDED == TRUE)
+
+#include "sdp_api.h"
+#include "bta_hl_int.h"
+#include "utl.h"
+
+/*******************************************************************************
+**
+** Function         bta_hl_fill_sup_feature_list
+**
+** Description      Fill the supported features from teh SDP record
+**
+** Returns          TRUE if found, FALSE if not
+**                  If found, the passed protocol list element is filled in.
+**
+*******************************************************************************/
+BOOLEAN bta_hl_fill_sup_feature_list( const tSDP_DISC_ATTR  *p_attr,
+                                      tBTA_HL_SUP_FEATURE_LIST_ELEM *p_list)
+{
+    tSDP_DISC_ATTR  *p_sattr;
+    UINT8           item_cnt;
+    UINT8           list_cnt=0;
+    BOOLEAN         status=TRUE;
+
+    for (p_attr = p_attr->attr_value.v.p_sub_attr; p_attr; p_attr = p_attr->p_next_attr)
+    {
+        /* mdep sequence */
+        if (SDP_DISC_ATTR_TYPE(p_attr->attr_len_type) != DATA_ELE_SEQ_DESC_TYPE)
+        {
+            return(FALSE);
+        }
+
+        item_cnt=0;
+
+        for (p_sattr = p_attr->attr_value.v.p_sub_attr; p_sattr && (item_cnt < 4) ; p_sattr = p_sattr->p_next_attr)
+        {
+            /* for each mdep list */
+
+            p_list->list_elem[list_cnt].p_mdep_desp = NULL;
+            switch (item_cnt)
+            {
+                case 0:
+                    p_list->list_elem[list_cnt].mdep_id = p_sattr->attr_value.v.u8;
+                    break;
+                case 1:
+                    p_list->list_elem[list_cnt].data_type = p_sattr->attr_value.v.u16;
+                    break;
+                case 2:
+                    p_list->list_elem[list_cnt].mdep_role = (tBTA_HL_MDEP_ROLE) p_sattr->attr_value.v.u8;
+                    break;
+                case 3:
+                    p_list->list_elem[list_cnt].p_mdep_desp    = (char *) p_sattr->attr_value.v.array;
+                    break;
+            }
+
+            item_cnt++;
+        }
+        list_cnt++;
+    }
+    p_list->num_elems = list_cnt;
+    return(status);
+}
+
+/*******************************************************************************
+**
+** Function         bta_hl_compose_supported_feature_list
+**
+** Description      This function is called to compose a data sequence from
+**                  the supported  feature element list struct pointer
+**
+** Returns          the length of the data sequence
+**
+*******************************************************************************/
+int bta_hl_compose_supported_feature_list( UINT8 *p, UINT16 num_elem,
+                                           const tBTA_HL_SUP_FEATURE_ELEM *p_elem_list)
+{
+    UINT16          xx, str_len, seq_len;
+    UINT8           *p_head = p;
+
+    for (xx = 0; xx < num_elem; xx++, p_elem_list++)
+    {
+        UINT8_TO_BE_STREAM  (p, (DATA_ELE_SEQ_DESC_TYPE << 3) | SIZE_IN_NEXT_BYTE);
+        seq_len=7;
+        str_len=0;
+        if (p_elem_list->p_mdep_desp)
+        {
+            str_len = strlen(p_elem_list->p_mdep_desp)+1;
+            seq_len += str_len+2; /* todo add a # symbol for 2 */
+        }
+
+        *p++ = (UINT8) seq_len;
+
+        UINT8_TO_BE_STREAM  (p, (UINT_DESC_TYPE << 3) | SIZE_ONE_BYTE);
+        UINT8_TO_BE_STREAM  (p, p_elem_list->mdep_id);
+        UINT8_TO_BE_STREAM  (p, (UINT_DESC_TYPE << 3) | SIZE_TWO_BYTES);
+        UINT16_TO_BE_STREAM (p, p_elem_list->data_type);
+        UINT8_TO_BE_STREAM  (p, (UINT_DESC_TYPE << 3) | SIZE_ONE_BYTE);
+        UINT8_TO_BE_STREAM  (p, p_elem_list->mdep_role);
+
+        if (str_len)
+        {
+            UINT8_TO_BE_STREAM  (p, (TEXT_STR_DESC_TYPE << 3) | SIZE_IN_NEXT_BYTE);
+            UINT8_TO_BE_STREAM  (p, str_len);
+            ARRAY_TO_BE_STREAM(p, p_elem_list->p_mdep_desp, str_len);
+        }
+    }
+
+    return(p - p_head);
+}
+
+/*******************************************************************************
+**
+** Function         bta_hl_add_sup_feature_list
+**
+** Description      This function is called to add a protocol descriptor list to
+**                  a record. This would be through the SDP database maintenance API.
+**                  If the protocol list already exists in the record, it is replaced
+**                  with the new list.
+**
+** Returns          TRUE if added OK, else FALSE
+**
+*******************************************************************************/
+BOOLEAN bta_hl_add_sup_feature_list (UINT32 handle, UINT16 num_elem,
+                                     const tBTA_HL_SUP_FEATURE_ELEM *p_elem_list)
+{
+    int offset;
+    BOOLEAN result;
+    UINT8 *p_buf = (UINT8 *)osi_malloc(BTA_HL_SUP_FEATURE_SDP_BUF_SIZE);
+
+    offset = bta_hl_compose_supported_feature_list(p_buf, num_elem,
+                                                   p_elem_list);
+    result = SDP_AddAttribute(handle, ATTR_ID_HDP_SUP_FEAT_LIST,
+                              DATA_ELE_SEQ_DESC_TYPE, (UINT32) offset, p_buf);
+    osi_free(p_buf);
+
+    return result;
+}
+
+/*****************************************************************************
+**
+**  Function:    bta_hl_sdp_update
+**
+**  Purpose:     Register an HDP application with SDP
+**
+**  Parameters:
+**
+**  Returns:     void
+**
+*****************************************************************************/
+tBTA_HL_STATUS bta_hl_sdp_update (UINT8 app_id)
+{
+    UINT16                          svc_class_id_list[BTA_HL_NUM_SVC_ELEMS];
+    tSDP_PROTOCOL_ELEM              proto_elem_list[BTA_HL_NUM_PROTO_ELEMS];
+    tSDP_PROTO_LIST_ELEM            add_proto_list;
+    tBTA_HL_SUP_FEATURE_LIST_ELEM   sup_feature_list;
+    UINT16                          browse_list[] = {UUID_SERVCLASS_PUBLIC_BROWSE_GROUP};
+    UINT8                           i,j, cnt,mdep_id, mdep_role;
+    UINT8                           data_exchange_spec = BTA_HL_SDP_IEEE_11073_20601;
+    UINT8                           mcap_sup_proc = BTA_HL_MCAP_SUP_PROC_MASK;
+    UINT16                          profile_uuid = UUID_SERVCLASS_HDP_PROFILE;
+    UINT16                          version = BTA_HL_VERSION_01_00;
+    UINT8                           num_services=1;
+    tBTA_HL_APP_CB                  *p_cb = BTA_HL_GET_APP_CB_PTR(0);
+    BOOLEAN                         result = TRUE;
+    tBTA_HL_STATUS                  status = BTA_HL_STATUS_OK;
+    UNUSED(app_id);
+
+    if ((p_cb->sup_feature.app_role_mask == BTA_HL_MDEP_ROLE_MASK_SOURCE) &&
+        (!p_cb->sup_feature.advertize_source_sdp))
+    {
+        return BTA_HL_STATUS_OK;
+    }
+
+    num_services=1;
+    svc_class_id_list[0]= UUID_SERVCLASS_HDP_SOURCE;
+    if (p_cb->sup_feature.app_role_mask == BTA_HL_MDEP_ROLE_MASK_SINK)
+    {
+        svc_class_id_list[0]= UUID_SERVCLASS_HDP_SINK;
+    }
+    else
+    {
+        if (p_cb->sup_feature.app_role_mask != BTA_HL_MDEP_ROLE_MASK_SOURCE)
+        {
+            /* dual role */
+            num_services=2;
+            svc_class_id_list[1]= UUID_SERVCLASS_HDP_SINK;
+        }
+    }
+    result &= SDP_AddServiceClassIdList(p_cb->sdp_handle, num_services, svc_class_id_list);
+
+    if (result)
+    {
+        /* add the protocol element sequence */
+        proto_elem_list[0].protocol_uuid = UUID_PROTOCOL_L2CAP;
+        proto_elem_list[0].num_params = 1;
+        proto_elem_list[0].params[0] = p_cb->ctrl_psm;
+        proto_elem_list[1].protocol_uuid = UUID_PROTOCOL_MCAP_CTRL;
+        proto_elem_list[1].num_params = 1;
+        proto_elem_list[1].params[0] = version;
+        result &= SDP_AddProtocolList(p_cb->sdp_handle, BTA_HL_NUM_PROTO_ELEMS, proto_elem_list);
+
+        result &= SDP_AddProfileDescriptorList(p_cb->sdp_handle, profile_uuid, version);
+    }
+
+    if (result)
+    {
+        add_proto_list.num_elems = BTA_HL_NUM_ADD_PROTO_ELEMS;
+        add_proto_list.list_elem[0].protocol_uuid = UUID_PROTOCOL_L2CAP;
+        add_proto_list.list_elem[0].num_params = 1;
+        add_proto_list.list_elem[0].params[0] = p_cb->data_psm;
+        add_proto_list.list_elem[1].protocol_uuid = UUID_PROTOCOL_MCAP_DATA;
+        add_proto_list.list_elem[1].num_params = 0;
+        result &= SDP_AddAdditionProtoLists(p_cb->sdp_handle, BTA_HL_NUM_ADD_PROTO_LISTS,
+                                            (tSDP_PROTO_LIST_ELEM *)&add_proto_list);
+    }
+
+    if (result)
+    {
+        if (p_cb->srv_name[0] )
+        {
+            result &= SDP_AddAttribute(p_cb->sdp_handle,
+                                       (UINT16)ATTR_ID_SERVICE_NAME,
+                                       (UINT8)TEXT_STR_DESC_TYPE,
+                                       (UINT32)(strlen(p_cb->srv_name) + 1),
+                                       (UINT8 *)p_cb->srv_name);
+        } /* end of setting optional service name */
+    }
+
+    if (result)
+    {
+        if (p_cb->srv_desp[0] )
+        {
+            result &= SDP_AddAttribute(p_cb->sdp_handle,
+                                       (UINT16)ATTR_ID_SERVICE_DESCRIPTION,
+                                       (UINT8)TEXT_STR_DESC_TYPE,
+                                       (UINT32)(strlen(p_cb->srv_desp) + 1),
+                                       (UINT8 *)p_cb->srv_desp);
+
+        } /* end of setting optional service description */
+
+    }
+
+    if (result)
+    {
+        if (p_cb->provider_name[0] )
+        {
+            result &= SDP_AddAttribute(p_cb->sdp_handle,
+                                       (UINT16)ATTR_ID_PROVIDER_NAME,
+                                       (UINT8)TEXT_STR_DESC_TYPE,
+                                       (UINT32)(strlen(p_cb->provider_name) + 1),
+                                       (UINT8 *)p_cb->provider_name);
+        } /* end of setting optional provider name */
+    }
+
+    /* add supported feture list */
+
+    if (result)
+    {
+        cnt=0;
+        for (i=1; i< BTA_HL_NUM_MDEPS; i++)
+        {
+            if (p_cb->sup_feature.mdep[i].mdep_id)
+            {
+                mdep_id = (UINT8)p_cb->sup_feature.mdep[i].mdep_id;
+                mdep_role = (UINT8)p_cb->sup_feature.mdep[i].mdep_cfg.mdep_role;
+
+                APPL_TRACE_DEBUG("num_of_mdep_data_types %d ", p_cb->sup_feature.mdep[i].mdep_cfg.num_of_mdep_data_types);
+                for (j=0; j<p_cb->sup_feature.mdep[i].mdep_cfg.num_of_mdep_data_types; j++)
+                {
+                    sup_feature_list.list_elem[cnt].mdep_id = mdep_id;
+                    sup_feature_list.list_elem[cnt].mdep_role = mdep_role;
+                    sup_feature_list.list_elem[cnt].data_type = p_cb->sup_feature.mdep[i].mdep_cfg.data_cfg[j].data_type;
+                    if (p_cb->sup_feature.mdep[i].mdep_cfg.data_cfg[j].desp[0] != '\0')
+                    {
+                        sup_feature_list.list_elem[cnt].p_mdep_desp = p_cb->sup_feature.mdep[i].mdep_cfg.data_cfg[j].desp;
+                    }
+                    else
+                    {
+                        sup_feature_list.list_elem[cnt].p_mdep_desp = NULL;
+                    }
+
+                    cnt++;
+                    if (cnt==BTA_HL_NUM_SUP_FEATURE_ELEMS)
+                    {
+                        result = FALSE;
+                        break;
+                    }
+                }
+            }
+        }
+        sup_feature_list.num_elems = cnt;
+        result &=   bta_hl_add_sup_feature_list (p_cb->sdp_handle,
+                                                 sup_feature_list.num_elems,
+                                                 sup_feature_list.list_elem);
+    }
+    if (result)
+    {
+        result &= SDP_AddAttribute(p_cb->sdp_handle, ATTR_ID_HDP_DATA_EXCH_SPEC, UINT_DESC_TYPE,
+                                   (UINT32)1, (UINT8*)&data_exchange_spec);
+    }
+
+    if (result)
+    {
+
+        result &= SDP_AddAttribute(p_cb->sdp_handle, ATTR_ID_HDP_MCAP_SUP_PROC, UINT_DESC_TYPE,
+                                   (UINT32)1, (UINT8*)&mcap_sup_proc);
+    }
+
+    if (result)
+    {
+        result &= SDP_AddUuidSequence(p_cb->sdp_handle, ATTR_ID_BROWSE_GROUP_LIST, 1, browse_list);
+    }
+
+    if (result)
+    {
+        for(i=0; i < num_services; i++)
+        {
+            bta_sys_add_uuid(svc_class_id_list[i]);
+            APPL_TRACE_DEBUG("dbg bta_sys_add_uuid i=%d uuid=0x%x", i, svc_class_id_list[i]); //todo
+        }
+    }
+    else
+    {
+        if (p_cb->sdp_handle)
+        {
+            SDP_DeleteRecord(p_cb->sdp_handle);
+            p_cb->sdp_handle = 0;
+        }
+        status = BTA_HL_STATUS_SDP_FAIL;
+    }
+#if BTA_HL_DEBUG == TRUE
+    APPL_TRACE_DEBUG("bta_hl_sdp_update status=%s", bta_hl_status_code(status));
+#endif
+    return status;
+}
+
+
+/*****************************************************************************
+**
+**  Function:    bta_hl_sdp_register
+**
+**  Purpose:     Register an HDP application with SDP
+**
+**  Parameters:  p_cb           - Pointer to MA instance control block
+**               p_service_name - MA server name
+**               inst_id        - MAS instance ID
+**               msg_type       - Supported message type(s)
+**
+**
+**  Returns:     void
+**
+*****************************************************************************/
+tBTA_HL_STATUS bta_hl_sdp_register (UINT8 app_idx)
+{
+    UINT16                          svc_class_id_list[BTA_HL_NUM_SVC_ELEMS];
+    tSDP_PROTOCOL_ELEM              proto_elem_list[BTA_HL_NUM_PROTO_ELEMS];
+    tSDP_PROTO_LIST_ELEM            add_proto_list;
+    tBTA_HL_SUP_FEATURE_LIST_ELEM   sup_feature_list;
+    UINT16                          browse_list[] = {UUID_SERVCLASS_PUBLIC_BROWSE_GROUP};
+    UINT8                           i,j, cnt,mdep_id, mdep_role;
+    UINT8                           data_exchange_spec = BTA_HL_SDP_IEEE_11073_20601;
+    UINT8                           mcap_sup_proc = BTA_HL_MCAP_SUP_PROC_MASK;
+    UINT16                          profile_uuid = UUID_SERVCLASS_HDP_PROFILE;
+    UINT16                          version = BTA_HL_VERSION_01_00;
+    UINT8                           num_services=1;
+    tBTA_HL_APP_CB                  *p_cb = BTA_HL_GET_APP_CB_PTR(app_idx);
+    BOOLEAN                         result = TRUE;
+    tBTA_HL_STATUS                  status = BTA_HL_STATUS_OK;
+
+#if BTA_HL_DEBUG == TRUE
+    APPL_TRACE_DEBUG("bta_hl_sdp_register app_idx=%d",app_idx);
+#endif
+
+    if ((p_cb->sup_feature.app_role_mask == BTA_HL_MDEP_ROLE_MASK_SOURCE) &&
+        (!p_cb->sup_feature.advertize_source_sdp))
+    {
+        return BTA_HL_STATUS_OK;
+    }
+
+    if ((p_cb->sdp_handle  = SDP_CreateRecord()) == 0)
+    {
+        return BTA_HL_STATUS_SDP_NO_RESOURCE;
+    }
+
+    num_services=1;
+    svc_class_id_list[0]= UUID_SERVCLASS_HDP_SOURCE;
+    if (p_cb->sup_feature.app_role_mask == BTA_HL_MDEP_ROLE_MASK_SINK)
+    {
+        svc_class_id_list[0]= UUID_SERVCLASS_HDP_SINK;
+    }
+    else
+    {
+        if (p_cb->sup_feature.app_role_mask != BTA_HL_MDEP_ROLE_MASK_SOURCE)
+        {
+            /* dual role */
+            num_services=2;
+            svc_class_id_list[1]= UUID_SERVCLASS_HDP_SINK;
+        }
+    }
+    result &= SDP_AddServiceClassIdList(p_cb->sdp_handle, num_services, svc_class_id_list);
+
+    if (result)
+    {
+        /* add the protocol element sequence */
+        proto_elem_list[0].protocol_uuid = UUID_PROTOCOL_L2CAP;
+        proto_elem_list[0].num_params = 1;
+        proto_elem_list[0].params[0] = p_cb->ctrl_psm;
+        proto_elem_list[1].protocol_uuid = UUID_PROTOCOL_MCAP_CTRL;
+        proto_elem_list[1].num_params = 1;
+        proto_elem_list[1].params[0] = version;
+        result &= SDP_AddProtocolList(p_cb->sdp_handle, BTA_HL_NUM_PROTO_ELEMS, proto_elem_list);
+
+        result &= SDP_AddProfileDescriptorList(p_cb->sdp_handle, profile_uuid, version);
+    }
+
+    if (result)
+    {
+        add_proto_list.num_elems = BTA_HL_NUM_ADD_PROTO_ELEMS;
+        add_proto_list.list_elem[0].protocol_uuid = UUID_PROTOCOL_L2CAP;
+        add_proto_list.list_elem[0].num_params = 1;
+        add_proto_list.list_elem[0].params[0] = p_cb->data_psm;
+        add_proto_list.list_elem[1].protocol_uuid = UUID_PROTOCOL_MCAP_DATA;
+        add_proto_list.list_elem[1].num_params = 0;
+        result &= SDP_AddAdditionProtoLists(p_cb->sdp_handle, BTA_HL_NUM_ADD_PROTO_LISTS,
+                                            (tSDP_PROTO_LIST_ELEM *)&add_proto_list);
+    }
+
+    if (result)
+    {
+        if (p_cb->srv_name[0] )
+        {
+            result &= SDP_AddAttribute(p_cb->sdp_handle,
+                                       (UINT16)ATTR_ID_SERVICE_NAME,
+                                       (UINT8)TEXT_STR_DESC_TYPE,
+                                       (UINT32)(strlen(p_cb->srv_name) + 1),
+                                       (UINT8 *)p_cb->srv_name);
+        } /* end of setting optional service name */
+    }
+
+    if (result)
+    {
+        if (p_cb->srv_desp[0] )
+        {
+            result &= SDP_AddAttribute(p_cb->sdp_handle,
+                                       (UINT16)ATTR_ID_SERVICE_DESCRIPTION,
+                                       (UINT8)TEXT_STR_DESC_TYPE,
+                                       (UINT32)(strlen(p_cb->srv_desp) + 1),
+                                       (UINT8 *)p_cb->srv_desp);
+
+        } /* end of setting optional service description */
+
+    }
+
+    if (result)
+    {
+        if (p_cb->provider_name[0] )
+        {
+            result &= SDP_AddAttribute(p_cb->sdp_handle,
+                                       (UINT16)ATTR_ID_PROVIDER_NAME,
+                                       (UINT8)TEXT_STR_DESC_TYPE,
+                                       (UINT32)(strlen(p_cb->provider_name) + 1),
+                                       (UINT8 *)p_cb->provider_name);
+        } /* end of setting optional provider name */
+    }
+
+    /* add supported feture list */
+
+    if (result)
+    {
+        cnt=0;
+        for (i=1; i<= p_cb->sup_feature.num_of_mdeps; i++)
+        {
+            mdep_id = (UINT8)p_cb->sup_feature.mdep[i].mdep_id;
+            mdep_role = (UINT8)p_cb->sup_feature.mdep[i].mdep_cfg.mdep_role;
+
+            for (j=0; j<p_cb->sup_feature.mdep[i].mdep_cfg.num_of_mdep_data_types; j++)
+            {
+                sup_feature_list.list_elem[cnt].mdep_id = mdep_id;
+                sup_feature_list.list_elem[cnt].mdep_role = mdep_role;
+                sup_feature_list.list_elem[cnt].data_type = p_cb->sup_feature.mdep[i].mdep_cfg.data_cfg[j].data_type;
+                if (p_cb->sup_feature.mdep[i].mdep_cfg.data_cfg[j].desp[0] != '\0')
+                {
+                    sup_feature_list.list_elem[cnt].p_mdep_desp = p_cb->sup_feature.mdep[i].mdep_cfg.data_cfg[j].desp;
+                }
+                else
+                {
+                    sup_feature_list.list_elem[cnt].p_mdep_desp = NULL;
+                }
+
+                cnt++;
+                if (cnt==BTA_HL_NUM_SUP_FEATURE_ELEMS)
+                {
+                    result = FALSE;
+                    break;
+                }
+            }
+        }
+        sup_feature_list.num_elems = cnt;
+        result &=   bta_hl_add_sup_feature_list (p_cb->sdp_handle,
+                                                 sup_feature_list.num_elems,
+                                                 sup_feature_list.list_elem);
+    }
+    if (result)
+    {
+        result &= SDP_AddAttribute(p_cb->sdp_handle, ATTR_ID_HDP_DATA_EXCH_SPEC, UINT_DESC_TYPE,
+                                   (UINT32)1, (UINT8*)&data_exchange_spec);
+    }
+
+    if (result)
+    {
+
+        result &= SDP_AddAttribute(p_cb->sdp_handle, ATTR_ID_HDP_MCAP_SUP_PROC, UINT_DESC_TYPE,
+                                   (UINT32)1, (UINT8*)&mcap_sup_proc);
+    }
+
+    if (result)
+    {
+        result &= SDP_AddUuidSequence(p_cb->sdp_handle, ATTR_ID_BROWSE_GROUP_LIST, 1, browse_list);
+    }
+
+    if (result)
+    {
+        for(i=0; i < num_services; i++)
+        {
+            bta_sys_add_uuid(svc_class_id_list[i]);
+            APPL_TRACE_DEBUG("dbg bta_sys_add_uuid i=%d uuid=0x%x", i, svc_class_id_list[i]); //todo
+        }
+    }
+    else
+    {
+        if (p_cb->sdp_handle)
+        {
+            SDP_DeleteRecord(p_cb->sdp_handle);
+            p_cb->sdp_handle = 0;
+        }
+        status = BTA_HL_STATUS_SDP_FAIL;
+    }
+#if BTA_HL_DEBUG == TRUE
+    APPL_TRACE_DEBUG("bta_hl_sdp_register status=%s", bta_hl_status_code(status));
+#endif
+    return status;
+}
+
+/*******************************************************************************
+**
+** Function         bta_hl_find_sink_or_src_srv_class_in_db
+**
+** Description      This function queries an SDP database for either a HDP Sink or
+**                  Source service class ID.
+**                  If the p_start_rec pointer is NULL, it looks from the beginning
+**                  of the database, else it continues from the next record after
+**                  p_start_rec.
+**
+** Returns          Pointer to record containing service class, or NULL
+**
+*******************************************************************************/
+tSDP_DISC_REC *bta_hl_find_sink_or_src_srv_class_in_db (const tSDP_DISCOVERY_DB *p_db,
+                                                        const tSDP_DISC_REC *p_start_rec)
+{
+#if SDP_CLIENT_ENABLED == TRUE
+    tSDP_DISC_REC   *p_rec;
+    tSDP_DISC_ATTR  *p_attr, *p_sattr;
+
+    /* Must have a valid database */
+    if (p_db == NULL)
+        return(NULL);
+
+
+    if (!p_start_rec)
+    {
+
+        p_rec = p_db->p_first_rec;
+    }
+    else
+    {
+        p_rec = p_start_rec->p_next_rec;
+    }
+
+    while (p_rec)
+    {
+        p_attr = p_rec->p_first_attr;
+        while (p_attr)
+        {
+            if ((p_attr->attr_id == ATTR_ID_SERVICE_CLASS_ID_LIST)
+                && (SDP_DISC_ATTR_TYPE(p_attr->attr_len_type) == DATA_ELE_SEQ_DESC_TYPE))
+            {
+                for (p_sattr = p_attr->attr_value.v.p_sub_attr; p_sattr; p_sattr = p_sattr->p_next_attr)
+                {
+                    if ((SDP_DISC_ATTR_TYPE(p_sattr->attr_len_type) == UUID_DESC_TYPE)
+                        && (SDP_DISC_ATTR_LEN(p_sattr->attr_len_type) == 2)
+                        && ( (p_sattr->attr_value.v.u16 == UUID_SERVCLASS_HDP_SINK) ||
+                             (p_sattr->attr_value.v.u16 == UUID_SERVCLASS_HDP_SOURCE)) )
+                    {
+                        return(p_rec);
+                    }
+                }
+                break;
+            }
+
+            p_attr = p_attr->p_next_attr;
+        }
+
+        p_rec = p_rec->p_next_rec;
+    }
+#endif
+    /* If here, no matching UUID found */
+
+#if BTA_HL_DEBUG == TRUE
+    APPL_TRACE_DEBUG("bta_hl_find_sink_or_src_srv_class_in_db failed");
+#endif
+
+    return(NULL);
+}
+#endif /* HL_INCLUDED */
diff --git a/rtkbt/code/bt/bta/hl/bta_hl_utils.c b/rtkbt/code/bt/bta/hl/bta_hl_utils.c
new file mode 100755
index 0000000..4e8c2b3
--- /dev/null
+++ b/rtkbt/code/bt/bta/hl/bta_hl_utils.c
@@ -0,0 +1,3483 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file implements utility functions for the HeaLth device profile
+ *  (HL).
+ *
+ ******************************************************************************/
+
+#include <stdio.h>
+#include <string.h>
+
+#include "bt_target.h"
+#if defined(HL_INCLUDED) && (HL_INCLUDED == TRUE)
+
+
+#include "bt_common.h"
+#include "utl.h"
+#include "bta_hl_int.h"
+#include "bta_hl_co.h"
+#include "mca_defs.h"
+#include "mca_api.h"
+
+
+/*******************************************************************************
+**
+** Function      bta_hl_set_ctrl_psm_for_dch
+**
+** Description    This function set the control PSM for the DCH setup
+**
+** Returns     BOOLEAN - TRUE - control PSM setting is successful
+*******************************************************************************/
+BOOLEAN bta_hl_set_ctrl_psm_for_dch(UINT8 app_idx, UINT8 mcl_idx,
+                                    UINT8 mdl_idx, UINT16 ctrl_psm)
+{
+    tBTA_HL_MCL_CB *p_mcb  = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+    BOOLEAN success = TRUE, update_ctrl_psm = FALSE;
+    UNUSED(mdl_idx);
+
+    if (p_mcb->sdp.num_recs)
+    {
+        if (p_mcb->ctrl_psm != ctrl_psm)
+        {
+            /* can not use a different ctrl PSM than the current one*/
+            success = FALSE;
+        }
+    }
+    else
+    {
+        /* No SDP info control i.e. channel was opened by the peer */
+        update_ctrl_psm = TRUE;
+    }
+
+    if (success && update_ctrl_psm)
+    {
+        p_mcb->ctrl_psm = ctrl_psm;
+    }
+
+
+#if BTA_HL_DEBUG == TRUE
+    if (!success)
+    {
+        APPL_TRACE_DEBUG("bta_hl_set_ctrl_psm_for_dch num_recs=%d success=%d update_ctrl_psm=%d ctrl_psm=0x%x ",
+                          p_mcb->sdp.num_recs, success, update_ctrl_psm, ctrl_psm );
+    }
+#endif
+
+    return success;
+}
+
+
+/*******************************************************************************
+**
+** Function      bta_hl_find_sdp_idx_using_ctrl_psm
+**
+** Description
+**
+** Returns      TRUE if found
+**
+*******************************************************************************/
+BOOLEAN bta_hl_find_sdp_idx_using_ctrl_psm(tBTA_HL_SDP *p_sdp,
+                                           UINT16 ctrl_psm,
+                                           UINT8 *p_sdp_idx)
+{
+    BOOLEAN found=FALSE;
+    tBTA_HL_SDP_REC     *p_rec;
+    UINT8 i;
+
+    if (ctrl_psm != 0)
+    {
+        for (i=0; i<p_sdp->num_recs; i++)
+        {
+            p_rec = &p_sdp->sdp_rec[i];
+            if (p_rec->ctrl_psm == ctrl_psm)
+            {
+                *p_sdp_idx = i;
+                found = TRUE;
+                break;
+            }
+        }
+    }
+    else
+    {
+        *p_sdp_idx = 0;
+        found = TRUE;
+    }
+
+#if BTA_HL_DEBUG == TRUE
+    if (!found)
+    {
+        APPL_TRACE_DEBUG("bta_hl_find_sdp_idx_using_ctrl_psm found=%d sdp_idx=%d ctrl_psm=0x%x ",
+                          found, *p_sdp_idx, ctrl_psm );
+    }
+#endif
+    return found;
+}
+
+/*******************************************************************************
+**
+** Function      bta_hl_set_user_tx_buf_size
+**
+** Description  This function sets the user tx buffer size
+**
+** Returns      UINT16 buf_size
+**
+*******************************************************************************/
+
+UINT16 bta_hl_set_user_tx_buf_size(UINT16 max_tx_size)
+{
+    if (max_tx_size > BT_DEFAULT_BUFFER_SIZE)
+        return BTA_HL_LRG_DATA_BUF_SIZE;
+    return L2CAP_INVALID_ERM_BUF_SIZE;
+}
+
+/*******************************************************************************
+**
+** Function      bta_hl_set_user_rx_buf_size
+**
+** Description  This function sets the user rx buffer size
+**
+** Returns      UINT16 buf_size
+**
+*******************************************************************************/
+
+UINT16 bta_hl_set_user_rx_buf_size(UINT16 mtu)
+{
+    if (mtu > BT_DEFAULT_BUFFER_SIZE)
+        return BTA_HL_LRG_DATA_BUF_SIZE;
+    return L2CAP_INVALID_ERM_BUF_SIZE;
+}
+
+
+
+/*******************************************************************************
+**
+** Function      bta_hl_set_tx_win_size
+**
+** Description  This function sets the tx window size
+**
+** Returns      UINT8 tx_win_size
+**
+*******************************************************************************/
+UINT8 bta_hl_set_tx_win_size(UINT16 mtu, UINT16 mps)
+{
+    UINT8 tx_win_size;
+
+    if (mtu <= mps)
+    {
+        tx_win_size =1;
+    }
+    else
+    {
+        if (mps > 0)
+        {
+            tx_win_size = (mtu/mps)+1;
+        }
+        else
+        {
+            APPL_TRACE_ERROR("The MPS is zero");
+            tx_win_size = 10;
+        }
+    }
+
+#if BTA_HL_DEBUG == TRUE
+    APPL_TRACE_DEBUG("bta_hl_set_tx_win_size win_size=%d mtu=%d mps=%d",
+                      tx_win_size, mtu, mps);
+#endif
+    return tx_win_size;
+}
+
+/*******************************************************************************
+**
+** Function      bta_hl_set_mps
+**
+** Description  This function sets the MPS
+**
+** Returns      UINT16 MPS
+**
+*******************************************************************************/
+UINT16 bta_hl_set_mps(UINT16 mtu)
+{
+    UINT16 mps;
+    if (mtu > BTA_HL_L2C_MPS)
+    {
+        mps = BTA_HL_L2C_MPS;
+    }
+    else
+    {
+        mps = mtu;
+    }
+#if BTA_HL_DEBUG == TRUE
+    APPL_TRACE_DEBUG("bta_hl_set_mps mps=%d mtu=%d",
+                      mps, mtu);
+#endif
+    return mps;
+}
+
+
+/*******************************************************************************
+**
+** Function      bta_hl_clean_mdl_cb
+**
+** Description  This function clean up the specified MDL control block
+**
+** Returns      void
+**
+*******************************************************************************/
+void bta_hl_clean_mdl_cb(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx)
+{
+    tBTA_HL_MDL_CB      *p_dcb  = BTA_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx);
+#if BTA_HL_DEBUG == TRUE
+    APPL_TRACE_DEBUG("bta_hl_clean_mdl_cb app_idx=%d mcl_idx=%d mdl_idx=%d",
+                      app_idx, mcl_idx, mdl_idx);
+#endif
+    osi_free_and_reset((void **)&p_dcb->p_tx_pkt);
+    osi_free_and_reset((void **)&p_dcb->p_rx_pkt);
+    osi_free_and_reset((void **)&p_dcb->p_echo_tx_pkt);
+    osi_free_and_reset((void **)&p_dcb->p_echo_rx_pkt);
+
+    memset((void *)p_dcb, 0 , sizeof(tBTA_HL_MDL_CB));
+}
+
+
+/*******************************************************************************
+**
+** Function      bta_hl_get_buf
+**
+** Description  This function allocate a buffer based on the specified data size
+**
+** Returns      BT_HDR *.
+**
+*******************************************************************************/
+BT_HDR * bta_hl_get_buf(UINT16 data_size, BOOLEAN fcs_use)
+{
+    size_t size = data_size + L2CAP_MIN_OFFSET + BT_HDR_SIZE + L2CAP_FCS_LEN
+                                                   + L2CAP_EXT_CONTROL_OVERHEAD;
+
+    if (fcs_use)
+        size += L2CAP_FCS_LEN;
+
+    BT_HDR *p_new = (BT_HDR *)osi_malloc(size);
+    p_new->len = data_size;
+    p_new->offset = L2CAP_MIN_OFFSET;
+
+    return p_new;
+}
+
+/*******************************************************************************
+**
+** Function      bta_hl_find_service_in_db
+**
+** Description  This function check the specified service class(es) can be find in
+**              the received SDP database
+**
+** Returns      BOOLEAN TRUE - found
+**                      FALSE - not found
+**
+*******************************************************************************/
+BOOLEAN bta_hl_find_service_in_db( UINT8 app_idx, UINT8 mcl_idx,
+                                   UINT16 service_uuid,
+                                   tSDP_DISC_REC **pp_rec )
+{
+    tBTA_HL_MCL_CB          *p_mcb = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+    BOOLEAN found = TRUE;
+
+    switch (service_uuid)
+    {
+        case UUID_SERVCLASS_HDP_SINK:
+        case UUID_SERVCLASS_HDP_SOURCE:
+            if ((*pp_rec = SDP_FindServiceInDb(p_mcb->p_db, service_uuid,
+                                               *pp_rec)) == NULL)
+            {
+                found = FALSE;
+            }
+            break;
+        default:
+            if (((*pp_rec = bta_hl_find_sink_or_src_srv_class_in_db(p_mcb->p_db,
+                                                                    *pp_rec)) == NULL))
+            {
+                found = FALSE;
+            }
+            break;
+    }
+    return found;
+}
+
+/*******************************************************************************
+**
+** Function      bta_hl_get_service_uuids
+**
+**
+** Description  This function finds the service class(es) for both CCH and DCH oeprations
+**
+** Returns      UINT16 - service_id
+**                       if service_uuid = 0xFFFF then it means service uuid
+**                       can be either Sink or Source
+**
+*******************************************************************************/
+UINT16 bta_hl_get_service_uuids(UINT8 sdp_oper, UINT8 app_idx, UINT8 mcl_idx,
+                                UINT8 mdl_idx )
+{
+    tBTA_HL_MDL_CB          *p_dcb;
+    UINT16                  service_uuid = 0xFFFF; /* both Sink and Source */
+
+    switch (sdp_oper)
+    {
+
+        case BTA_HL_SDP_OP_DCH_OPEN_INIT:
+        case BTA_HL_SDP_OP_DCH_RECONNECT_INIT:
+            p_dcb = BTA_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx);
+            if (p_dcb->local_mdep_id != BTA_HL_ECHO_TEST_MDEP_ID)
+            {
+                if (p_dcb->peer_mdep_role == BTA_HL_MDEP_ROLE_SINK)
+                {
+                    service_uuid = UUID_SERVCLASS_HDP_SINK;
+                }
+                else
+                {
+                    service_uuid = UUID_SERVCLASS_HDP_SOURCE;
+                }
+            }
+            break;
+        case BTA_HL_SDP_OP_CCH_INIT:
+        default:
+            /* use default that is both Sink and Source */
+            break;
+    }
+#if BTA_HL_DEBUG == TRUE
+    APPL_TRACE_DEBUG("bta_hl_get_service_uuids service_uuid=0x%x",service_uuid );
+#endif
+    return service_uuid;
+}
+
+/*******************************************************************************
+**
+** Function      bta_hl_find_echo_cfg_rsp
+**
+**
+** Description  This function finds the configuration response for the echo test
+**
+** Returns      BOOLEAN - TRUE found
+**                        FALSE not found
+**
+*******************************************************************************/
+BOOLEAN bta_hl_find_echo_cfg_rsp(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdep_idx, UINT8 cfg,
+                                 UINT8 *p_cfg_rsp)
+{
+    tBTA_HL_APP_CB      *p_acb = BTA_HL_GET_APP_CB_PTR(app_idx);
+    tBTA_HL_MDEP        *p_mdep= &p_acb->sup_feature.mdep[mdep_idx];
+    BOOLEAN             status =TRUE;
+
+    if (p_mdep->mdep_id == BTA_HL_ECHO_TEST_MDEP_ID)
+    {
+        if ((cfg == BTA_HL_DCH_CFG_RELIABLE) || (cfg == BTA_HL_DCH_CFG_STREAMING))
+        {
+            *p_cfg_rsp = cfg;
+        }
+        else if (cfg == BTA_HL_DCH_CFG_NO_PREF )
+        {
+            *p_cfg_rsp = BTA_HL_DEFAULT_ECHO_TEST_SRC_DCH_CFG;
+        }
+        else
+        {
+            status = FALSE;
+            APPL_TRACE_ERROR("Inavlid echo cfg value");
+        }
+        return status;
+    }
+
+#if BTA_HL_DEBUG == TRUE
+    if (!status)
+    {
+        APPL_TRACE_DEBUG("bta_hl_find_echo_cfg_rsp status=failed app_idx=%d mcl_idx=%d mdep_idx=%d cfg=%d",
+                          app_idx, mcl_idx, mdep_idx, cfg);
+    }
+#endif
+
+    return status;
+}
+
+/*******************************************************************************
+**
+** Function      bta_hl_validate_dch_cfg
+**
+** Description  This function validate the DCH configuration
+**
+** Returns      BOOLEAN - TRUE cfg is valid
+**                        FALSE not valid
+**
+*******************************************************************************/
+BOOLEAN bta_hl_validate_cfg(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx,
+                            UINT8 cfg)
+{
+    tBTA_HL_MDL_CB      *p_dcb = BTA_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx);
+    BOOLEAN is_valid =FALSE;
+
+
+    if (!bta_hl_is_the_first_reliable_existed(app_idx, mcl_idx) &&
+        (cfg != BTA_HL_DCH_CFG_RELIABLE))
+    {
+        APPL_TRACE_ERROR("the first DCH should be a reliable channel");
+        return is_valid;
+    }
+
+    switch (p_dcb->local_cfg)
+    {
+        case BTA_HL_DCH_CFG_NO_PREF:
+
+            if ((cfg == BTA_HL_DCH_CFG_RELIABLE) || (cfg == BTA_HL_DCH_CFG_STREAMING))
+            {
+                is_valid = TRUE;
+            }
+            break;
+        case BTA_HL_DCH_CFG_RELIABLE:
+        case BTA_HL_DCH_CFG_STREAMING:
+            if (p_dcb->local_cfg == cfg )
+            {
+                is_valid = TRUE;
+            }
+            break;
+        default:
+            break;
+    }
+
+#if BTA_HL_DEBUG == TRUE
+    if (!is_valid)
+    {
+        APPL_TRACE_DEBUG("bta_hl_validate_dch_open_cfg is_valid=%d, cfg=%d", is_valid, cfg );
+    }
+#endif
+    return is_valid;
+}
+
+/*******************************************************************************
+**
+** Function       bta_hl_find_cch_cb_indexes
+**
+** Description  This function finds the indexes needed for the CCH state machine
+**
+** Returns      BOOLEAN - TRUE found
+**                        FALSE not found
+**
+*******************************************************************************/
+BOOLEAN bta_hl_find_cch_cb_indexes(tBTA_HL_DATA *p_msg,
+                                   UINT8 *p_app_idx,
+                                   UINT8  *p_mcl_idx)
+{
+    BOOLEAN found = FALSE;
+    tBTA_HL_MCL_CB      *p_mcb;
+    UINT8               app_idx = 0, mcl_idx = 0;
+
+    switch (p_msg->hdr.event)
+    {
+        case BTA_HL_CCH_SDP_OK_EVT:
+        case BTA_HL_CCH_SDP_FAIL_EVT:
+            app_idx = p_msg->cch_sdp.app_idx;
+            mcl_idx = p_msg->cch_sdp.mcl_idx;
+            found = TRUE;
+            break;
+
+        case BTA_HL_MCA_CONNECT_IND_EVT:
+
+            if (bta_hl_find_app_idx_using_handle(p_msg->mca_evt.app_handle, &app_idx))
+            {
+                if (bta_hl_find_mcl_idx(app_idx, p_msg->mca_evt.mca_data.connect_ind.bd_addr, &mcl_idx))
+                {
+                    /* local initiated */
+                    found = TRUE;
+                }
+                else if (!bta_hl_find_mcl_idx_using_handle(p_msg->mca_evt.mcl_handle, &app_idx, &mcl_idx)&&
+                         bta_hl_find_avail_mcl_idx(app_idx, &mcl_idx))
+                {
+                    /* remote initiated */
+                    p_mcb = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+                    p_mcb->in_use = TRUE;
+                    p_mcb->cch_oper = BTA_HL_CCH_OP_REMOTE_OPEN;
+                    found = TRUE;
+                }
+            }
+            break;
+
+        case BTA_HL_MCA_DISCONNECT_IND_EVT:
+
+            if (bta_hl_find_mcl_idx_using_handle(p_msg->mca_evt.mcl_handle, &app_idx,  &mcl_idx))
+            {
+                found = TRUE;
+            }
+            else if (bta_hl_find_app_idx_using_handle(p_msg->mca_evt.app_handle, &app_idx) &&
+                     bta_hl_find_mcl_idx(app_idx, p_msg->mca_evt.mca_data.disconnect_ind.bd_addr, &mcl_idx))
+            {
+                found = TRUE;
+            }
+
+            if (found)
+            {
+                p_mcb = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+                if ((p_mcb->cch_oper != BTA_HL_CCH_OP_LOCAL_CLOSE) && (p_mcb->cch_oper != BTA_HL_CCH_OP_LOCAL_OPEN) )
+                {
+                    p_mcb->cch_oper = BTA_HL_CCH_OP_REMOTE_CLOSE;
+                }
+            }
+            break;
+
+        case BTA_HL_MCA_RSP_TOUT_IND_EVT:
+
+            if (bta_hl_find_mcl_idx_using_handle(p_msg->mca_evt.mcl_handle, &app_idx,  &mcl_idx))
+            {
+                found = TRUE;
+            }
+
+            if (found)
+            {
+                p_mcb = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+                if ((p_mcb->cch_oper != BTA_HL_CCH_OP_REMOTE_CLOSE) && (p_mcb->cch_oper != BTA_HL_CCH_OP_LOCAL_OPEN))
+                {
+                    p_mcb->cch_oper = BTA_HL_CCH_OP_LOCAL_CLOSE;
+                }
+            }
+            break;
+        default:
+            break;
+    }
+
+
+    if (found)
+    {
+        *p_app_idx = app_idx;
+        *p_mcl_idx = mcl_idx;
+    }
+
+#if BTA_HL_DEBUG == TRUE
+    if (!found)
+    {
+        APPL_TRACE_DEBUG("bta_hl_find_cch_cb_indexes event=%s found=%d app_idx=%d mcl_idx=%d",
+                          bta_hl_evt_code(p_msg->hdr.event), found, app_idx, mcl_idx);
+    }
+#endif
+
+    return found;
+}
+
+/*******************************************************************************
+**
+** Function       bta_hl_find_dch_cb_indexes
+**
+** Description  This function finds the indexes needed for the DCH state machine
+**
+** Returns      BOOLEAN - TRUE found
+**                        FALSE not found
+**
+*******************************************************************************/
+BOOLEAN bta_hl_find_dch_cb_indexes(tBTA_HL_DATA *p_msg,
+                                   UINT8 *p_app_idx,
+                                   UINT8 *p_mcl_idx,
+                                   UINT8 *p_mdl_idx)
+{
+    BOOLEAN         found = FALSE;
+    tBTA_HL_MCL_CB  *p_mcb;
+    UINT8           app_idx = 0, mcl_idx = 0, mdl_idx = 0;
+
+    switch (p_msg->hdr.event)
+    {
+        case BTA_HL_MCA_CREATE_CFM_EVT:
+            if (bta_hl_find_mcl_idx_using_handle(p_msg->mca_evt.mcl_handle, &app_idx, &mcl_idx) &&
+                bta_hl_find_mdl_idx( app_idx,  mcl_idx,  p_msg->mca_evt.mca_data.create_cfm.mdl_id, &mdl_idx))
+            {
+                found = TRUE;
+            }
+            break;
+
+        case BTA_HL_MCA_CREATE_IND_EVT:
+        case BTA_HL_MCA_RECONNECT_IND_EVT:
+            if (bta_hl_find_mcl_idx_using_handle(p_msg->mca_evt.mcl_handle, &app_idx, &mcl_idx) &&
+                bta_hl_find_avail_mdl_idx( app_idx,  mcl_idx, &mdl_idx))
+            {
+                found = TRUE;
+            }
+            break;
+
+        case BTA_HL_MCA_OPEN_CFM_EVT:
+            if (bta_hl_find_mcl_idx_using_handle(p_msg->mca_evt.mcl_handle, &app_idx, &mcl_idx) &&
+                bta_hl_find_mdl_idx( app_idx,  mcl_idx,  p_msg->mca_evt.mca_data.open_cfm.mdl_id, &mdl_idx))
+            {
+                found = TRUE;
+            }
+            break;
+
+        case BTA_HL_MCA_OPEN_IND_EVT:
+            if (bta_hl_find_mcl_idx_using_handle(p_msg->mca_evt.mcl_handle, &app_idx, &mcl_idx) &&
+                bta_hl_find_mdl_idx( app_idx,  mcl_idx,  p_msg->mca_evt.mca_data.open_ind.mdl_id, &mdl_idx))
+            {
+                found = TRUE;
+            }
+            break;
+
+        case BTA_HL_MCA_CLOSE_CFM_EVT:
+
+            if (bta_hl_find_mdl_idx_using_handle((tBTA_HL_MDL_HANDLE)p_msg->mca_evt.mca_data.close_cfm.mdl,
+                                                 &app_idx, &mcl_idx, &mdl_idx))
+            {
+                found = TRUE;
+            }
+            break;
+        case BTA_HL_MCA_CLOSE_IND_EVT:
+
+            if (bta_hl_find_mdl_idx_using_handle((tBTA_HL_MDL_HANDLE)p_msg->mca_evt.mca_data.close_ind.mdl,
+                                                 &app_idx, &mcl_idx, &mdl_idx))
+            {
+                found = TRUE;
+            }
+            break;
+        case BTA_HL_API_SEND_DATA_EVT:
+
+            if (bta_hl_find_mdl_idx_using_handle(p_msg->api_send_data.mdl_handle,
+                                                 &app_idx, &mcl_idx, &mdl_idx ))
+            {
+                found = TRUE;
+            }
+
+            break;
+
+        case BTA_HL_MCA_CONG_CHG_EVT:
+
+            if (bta_hl_find_mdl_idx_using_handle((tBTA_HL_MDL_HANDLE)p_msg->mca_evt.mca_data.cong_chg.mdl,
+                                                 &app_idx, &mcl_idx, &mdl_idx ))
+            {
+                found = TRUE;
+            }
+
+            break;
+
+        case BTA_HL_MCA_RCV_DATA_EVT:
+            app_idx = p_msg->mca_rcv_data_evt.app_idx;
+            mcl_idx = p_msg->mca_rcv_data_evt.mcl_idx;
+            mdl_idx = p_msg->mca_rcv_data_evt.mdl_idx;
+            found = TRUE;
+            break;
+        case BTA_HL_DCH_RECONNECT_EVT:
+        case BTA_HL_DCH_OPEN_EVT:
+        case BTA_HL_DCH_ECHO_TEST_EVT:
+        case BTA_HL_DCH_SDP_FAIL_EVT:
+            app_idx = p_msg->dch_sdp.app_idx;
+            mcl_idx = p_msg->dch_sdp.mcl_idx;
+            mdl_idx = p_msg->dch_sdp.mdl_idx;
+            found = TRUE;
+            break;
+        case BTA_HL_MCA_RECONNECT_CFM_EVT:
+            if (bta_hl_find_mcl_idx_using_handle(p_msg->mca_evt.mcl_handle, &app_idx, &mcl_idx) &&
+                bta_hl_find_mdl_idx( app_idx,  mcl_idx,  p_msg->mca_evt.mca_data.reconnect_cfm.mdl_id, &mdl_idx))
+            {
+                found = TRUE;
+            }
+            break;
+
+
+        case BTA_HL_API_DCH_CREATE_RSP_EVT:
+            if (bta_hl_find_mcl_idx_using_handle(p_msg->api_dch_create_rsp.mcl_handle, &app_idx, &mcl_idx)&&
+                bta_hl_find_mdl_idx( app_idx,  mcl_idx,p_msg->api_dch_create_rsp.mdl_id, &mdl_idx))
+            {
+                found = TRUE;
+            }
+            break;
+        case BTA_HL_MCA_ABORT_IND_EVT:
+            if (bta_hl_find_mcl_idx_using_handle(p_msg->mca_evt.mcl_handle, &app_idx, &mcl_idx) &&
+                bta_hl_find_mdl_idx( app_idx,  mcl_idx,p_msg->mca_evt.mca_data.abort_ind.mdl_id, &mdl_idx))
+            {
+                found = TRUE;
+            }
+            break;
+        case BTA_HL_MCA_ABORT_CFM_EVT:
+            if (bta_hl_find_mcl_idx_using_handle(p_msg->mca_evt.mcl_handle, &app_idx,  &mcl_idx) &&
+                bta_hl_find_mdl_idx( app_idx,  mcl_idx,  p_msg->mca_evt.mca_data.abort_cfm.mdl_id, &mdl_idx))
+            {
+                found = TRUE;
+            }
+            break;
+        case BTA_HL_CI_GET_TX_DATA_EVT:
+        case BTA_HL_CI_PUT_RX_DATA_EVT:
+            if (bta_hl_find_mdl_idx_using_handle(p_msg->ci_get_put_data.mdl_handle, &app_idx, &mcl_idx, &mdl_idx))
+            {
+                found = TRUE;
+            }
+            break;
+        case BTA_HL_CI_GET_ECHO_DATA_EVT:
+        case BTA_HL_CI_PUT_ECHO_DATA_EVT:
+            if (bta_hl_find_mcl_idx_using_handle(p_msg->ci_get_put_echo_data.mcl_handle, &app_idx, &mcl_idx))
+            {
+                p_mcb = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+                mdl_idx = p_mcb->echo_mdl_idx;
+                found = TRUE;
+            }
+            break;
+
+        default:
+            break;
+
+    }
+
+    if (found)
+    {
+        *p_app_idx = app_idx;
+        *p_mcl_idx = mcl_idx;
+        *p_mdl_idx = mdl_idx;
+    }
+#if BTA_HL_DEBUG == TRUE
+    if (!found)
+    {
+        APPL_TRACE_DEBUG("bta_hl_find_dch_cb_indexes event=%s found=%d app_idx=%d mcl_idx=%d mdl_idx=%d",
+                          bta_hl_evt_code(p_msg->hdr.event), found, *p_app_idx, *p_mcl_idx, *p_mdl_idx  );
+    }
+#endif
+
+    return found;
+}
+
+/*******************************************************************************
+**
+** Function      bta_hl_allocate_mdl_id
+**
+** Description  This function allocates a MDL ID
+**
+** Returns      UINT16 - MDL ID
+**
+*******************************************************************************/
+UINT16  bta_hl_allocate_mdl_id(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx )
+{
+    UINT16  mdl_id=0;
+    tBTA_HL_MCL_CB      *p_mcb = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+    BOOLEAN duplicate_id;
+    UINT8 i, mdl_cfg_idx;
+
+    do
+    {
+        duplicate_id = FALSE;
+        mdl_id = ((mdl_id+1) & 0xFEFF);
+        /* check mdl_ids that are used for the current conenctions */
+        for (i=0; i< BTA_HL_NUM_MDLS_PER_MCL; i++)
+        {
+            if (p_mcb->mdl[i].in_use &&
+                (i != mdl_idx) &&
+                (p_mcb->mdl[i].mdl_id == mdl_id) )
+            {
+                duplicate_id = TRUE;
+                break;
+            }
+        }
+
+        if (duplicate_id)
+        {
+            /* start from the beginning to get another MDL value*/
+            continue;
+        }
+        else
+        {
+            /* check mdl_ids that are stored in the persistent memory */
+            if (bta_hl_find_mdl_cfg_idx(app_idx,mcl_idx, mdl_id, &mdl_cfg_idx))
+            {
+                duplicate_id = TRUE;
+            }
+            else
+            {
+                /* found a new MDL value */
+                break;
+            }
+        }
+
+    }while (TRUE);
+
+#if BTA_HL_DEBUG == TRUE
+    APPL_TRACE_DEBUG("bta_hl_allocate_mdl OK mdl_id=%d",  mdl_id);
+#endif
+    return mdl_id;
+}
+/*******************************************************************************
+**
+** Function      bta_hl_find_mdl_idx
+**
+** Description  This function finds the MDL index based on mdl_id
+**
+** Returns      BOOLEAN TRUE-found
+**
+*******************************************************************************/
+BOOLEAN bta_hl_find_mdl_idx(UINT8 app_idx, UINT8 mcl_idx, UINT16 mdl_id,
+                            UINT8 *p_mdl_idx)
+{
+    tBTA_HL_MCL_CB      *p_mcb  = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+    BOOLEAN found=FALSE;
+    UINT8 i;
+
+    for (i=0; i < BTA_HL_NUM_MDLS_PER_MCL ; i ++)
+    {
+        if (p_mcb->mdl[i].in_use  &&
+            (mdl_id !=0) &&
+            (p_mcb->mdl[i].mdl_id== mdl_id))
+        {
+            found = TRUE;
+            *p_mdl_idx = i;
+            break;
+        }
+    }
+
+#if BTA_HL_DEBUG == TRUE
+    if (!found)
+    {
+        APPL_TRACE_DEBUG("bta_hl_find_mdl_idx found=%d mdl_id=%d mdl_idx=%d ",
+                          found, mdl_id, i);
+    }
+#endif
+
+    return found;
+}
+
+/*******************************************************************************
+**
+** Function      bta_hl_find_an_active_mdl_idx
+**
+** Description  This function finds an active MDL
+**
+** Returns      BOOLEAN TRUE-found
+**
+*******************************************************************************/
+BOOLEAN bta_hl_find_an_active_mdl_idx(UINT8 app_idx, UINT8 mcl_idx,
+                                      UINT8 *p_mdl_idx)
+{
+    tBTA_HL_MCL_CB      *p_mcb  = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+    BOOLEAN found=FALSE;
+    UINT8 i;
+
+    for (i=0; i < BTA_HL_NUM_MDLS_PER_MCL ; i ++)
+    {
+        if (p_mcb->mdl[i].in_use  &&
+            (p_mcb->mdl[i].dch_state == BTA_HL_DCH_OPEN_ST))
+        {
+            found = TRUE;
+            *p_mdl_idx = i;
+            break;
+        }
+    }
+
+#if BTA_HL_DEBUG == TRUE
+    if (found)
+    {
+        APPL_TRACE_DEBUG("bta_hl_find_an_opened_mdl_idx found=%d app_idx=%d mcl_idx=%d mdl_idx=%d",
+                          found, app_idx, mcl_idx, i);
+    }
+#endif
+
+    return found;
+}
+
+/*******************************************************************************
+**
+** Function      bta_hl_find_dch_setup_mdl_idx
+**
+** Description  This function finds a MDL which in the DCH setup state
+**
+** Returns      BOOLEAN TRUE-found
+**
+*******************************************************************************/
+BOOLEAN bta_hl_find_dch_setup_mdl_idx(UINT8 app_idx, UINT8 mcl_idx,
+                                      UINT8 *p_mdl_idx)
+{
+    tBTA_HL_MCL_CB      *p_mcb  = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+    BOOLEAN found=FALSE;
+    UINT8 i;
+
+    for (i=0; i < BTA_HL_NUM_MDLS_PER_MCL ; i ++)
+    {
+        if (p_mcb->mdl[i].in_use  &&
+            (p_mcb->mdl[i].dch_state == BTA_HL_DCH_OPENING_ST))
+        {
+            found = TRUE;
+            *p_mdl_idx = i;
+            break;
+        }
+    }
+
+#if BTA_HL_DEBUG == TRUE
+    if (found)
+    {
+        APPL_TRACE_DEBUG("bta_hl_find_dch_setup_mdl_idx found=%d app_idx=%d mcl_idx=%d mdl_idx=%d",
+                          found, app_idx, mcl_idx, i);
+    }
+#endif
+
+    return found;
+}
+
+/*******************************************************************************
+**
+** Function      bta_hl_find_an_in_use_mcl_idx
+**
+** Description  This function finds an in-use MCL control block index
+**
+** Returns      BOOLEAN TRUE-found
+**
+*******************************************************************************/
+BOOLEAN bta_hl_find_an_in_use_mcl_idx(UINT8 app_idx,
+                                      UINT8 *p_mcl_idx)
+{
+    tBTA_HL_MCL_CB      *p_mcb;
+    BOOLEAN found=FALSE;
+    UINT8 i;
+
+    for (i=0; i < BTA_HL_NUM_MCLS ; i ++)
+    {
+        p_mcb  = BTA_HL_GET_MCL_CB_PTR(app_idx, i);
+        if (p_mcb->in_use  &&
+            (p_mcb->cch_state != BTA_HL_CCH_IDLE_ST))
+        {
+            found = TRUE;
+            *p_mcl_idx = i;
+            break;
+        }
+    }
+
+#if BTA_HL_DEBUG == TRUE
+    if (found)
+    {
+        APPL_TRACE_DEBUG("bta_hl_find_an_in_use_mcl_idx found=%d app_idx=%d mcl_idx=%d ",
+                          found, app_idx, i);
+    }
+#endif
+
+    return found;
+}
+
+
+/*******************************************************************************
+**
+** Function      bta_hl_find_an_in_use_app_idx
+**
+** Description  This function finds an in-use application control block index
+**
+** Returns      BOOLEAN TRUE-found
+**
+*******************************************************************************/
+BOOLEAN bta_hl_find_an_in_use_app_idx(UINT8 *p_app_idx)
+{
+    tBTA_HL_APP_CB      *p_acb ;
+    BOOLEAN found=FALSE;
+    UINT8 i;
+
+    for (i=0; i < BTA_HL_NUM_APPS ; i ++)
+    {
+        p_acb  = BTA_HL_GET_APP_CB_PTR(i);
+        if (p_acb->in_use)
+        {
+            found = TRUE;
+            *p_app_idx = i;
+            break;
+        }
+    }
+
+#if BTA_HL_DEBUG == TRUE
+    if (found)
+    {
+        APPL_TRACE_DEBUG("bta_hl_find_an_in_use_app_idx found=%d app_idx=%d ",
+                          found, i);
+    }
+#endif
+
+    return found;
+}
+/*******************************************************************************
+**
+** Function      bta_hl_find_app_idx
+**
+** Description  This function finds the application control block index based on
+**              the application ID
+**
+** Returns      BOOLEAN TRUE-found
+**
+*******************************************************************************/
+BOOLEAN bta_hl_find_app_idx(UINT8 app_id, UINT8 *p_app_idx)
+{
+    BOOLEAN found=FALSE;
+    UINT8 i;
+
+    for (i=0; i < BTA_HL_NUM_APPS ; i ++)
+    {
+        if (bta_hl_cb.acb[i].in_use &&
+            (bta_hl_cb.acb[i].app_id == app_id))
+        {
+            found = TRUE;
+            *p_app_idx = i;
+            break;
+        }
+    }
+
+#if BTA_HL_DEBUG == TRUE
+    APPL_TRACE_DEBUG("bta_hl_find_app_idx found=%d app_id=%d idx=%d ",
+                      found, app_id, i);
+#endif
+
+    return found;
+}
+
+
+/*******************************************************************************
+**
+** Function      bta_hl_find_app_idx_using_handle
+**
+** Description  This function finds the application control block index based on
+**              the application handle
+**
+** Returns      BOOLEAN TRUE-found
+**
+*******************************************************************************/
+BOOLEAN bta_hl_find_app_idx_using_handle(tBTA_HL_APP_HANDLE app_handle,
+                                         UINT8 *p_app_idx)
+{
+    BOOLEAN found=FALSE;
+    UINT8 i;
+
+    for (i=0; i < BTA_HL_NUM_APPS ; i ++)
+    {
+        if (bta_hl_cb.acb[i].in_use &&
+            (bta_hl_cb.acb[i].app_handle == app_handle))
+        {
+            found = TRUE;
+            *p_app_idx = i;
+            break;
+        }
+    }
+
+#if BTA_HL_DEBUG == TRUE
+    if (!found)
+    {
+        APPL_TRACE_DEBUG("bta_hl_find_app_idx_using_mca_handle status=%d handle=%d app_idx=%d ",
+                          found, app_handle , i);
+    }
+#endif
+
+    return found;
+}
+
+
+/*******************************************************************************
+**
+** Function      bta_hl_find_mcl_idx_using_handle
+**
+** Description  This function finds the MCL control block index based on
+**              the MCL handle
+**
+** Returns      BOOLEAN TRUE-found
+**
+*******************************************************************************/
+BOOLEAN bta_hl_find_mcl_idx_using_handle( tBTA_HL_MCL_HANDLE mcl_handle,
+                                          UINT8 *p_app_idx, UINT8 *p_mcl_idx)
+{
+    tBTA_HL_APP_CB  *p_acb;
+    BOOLEAN         found=FALSE;
+    UINT8 i = 0,j = 0;
+
+    for (i=0; i<BTA_HL_NUM_APPS; i++)
+    {
+        p_acb = BTA_HL_GET_APP_CB_PTR(i);
+        if (p_acb->in_use)
+        {
+            for (j=0; j < BTA_HL_NUM_MCLS ; j++)
+            {
+                if ( p_acb->mcb[j].mcl_handle == mcl_handle )
+                {
+                    found = TRUE;
+                    *p_app_idx = i;
+                    *p_mcl_idx = j;
+                    break;
+                }
+            }
+        }
+    }
+
+#if BTA_HL_DEBUG == TRUE
+    if (!found)
+    {
+        APPL_TRACE_DEBUG("bta_hl_find_mcl_idx_using_handle found=%d app_idx=%d mcl_idx=%d",
+                          found, i, j);
+    }
+#endif
+    return found;
+}
+
+/*******************************************************************************
+**
+** Function      bta_hl_find_mcl_idx
+**
+** Description  This function finds the MCL control block index based on
+**              the peer BD address
+**
+** Returns      BOOLEAN TRUE-found
+**
+*******************************************************************************/
+BOOLEAN bta_hl_find_mcl_idx(UINT8 app_idx, BD_ADDR p_bd_addr, UINT8 *p_mcl_idx)
+{
+    BOOLEAN found=FALSE;
+    UINT8 i;
+
+    for (i=0; i < BTA_HL_NUM_MCLS ; i ++)
+    {
+        if (bta_hl_cb.acb[app_idx].mcb[i].in_use &&
+            (!memcmp (bta_hl_cb.acb[app_idx].mcb[i].bd_addr, p_bd_addr, BD_ADDR_LEN)))
+        {
+            found = TRUE;
+            *p_mcl_idx = i;
+            break;
+        }
+    }
+
+#if BTA_HL_DEBUG == TRUE
+    if (!found)
+    {
+        APPL_TRACE_DEBUG("bta_hl_find_mcl_idx found=%d idx=%d",
+                          found, i);
+    }
+#endif
+    return found;
+}
+
+
+
+/*******************************************************************************
+**
+** Function      bta_hl_find_mdl_idx_using_handle
+**
+** Description  This function finds the MDL control block index based on
+**              the MDL handle
+**
+** Returns      BOOLEAN TRUE-found
+**
+*******************************************************************************/
+BOOLEAN bta_hl_find_mdl_idx_using_handle(tBTA_HL_MDL_HANDLE mdl_handle,
+                                         UINT8 *p_app_idx,UINT8 *p_mcl_idx,
+                                         UINT8 *p_mdl_idx)
+{
+    tBTA_HL_APP_CB      *p_acb;
+    tBTA_HL_MCL_CB      *p_mcb;
+    tBTA_HL_MDL_CB      *p_dcb;
+    BOOLEAN found=FALSE;
+    UINT8 i,j,k;
+
+    for (i=0; i < BTA_HL_NUM_APPS ; i ++)
+    {
+        p_acb = BTA_HL_GET_APP_CB_PTR(i);
+        if (p_acb->in_use)
+        {
+            for (j=0; j< BTA_HL_NUM_MCLS; j++)
+            {
+                p_mcb = BTA_HL_GET_MCL_CB_PTR(i,j);
+                if (p_mcb->in_use)
+                {
+                    for (k=0; k< BTA_HL_NUM_MDLS_PER_MCL; k++)
+                    {
+                        p_dcb = BTA_HL_GET_MDL_CB_PTR(i,j,k);
+                        if (p_dcb->in_use)
+                        {
+                            if (p_dcb->mdl_handle == mdl_handle)
+                            {
+                                found = TRUE;
+                                *p_app_idx = i;
+                                *p_mcl_idx =j;
+                                *p_mdl_idx = k;
+                                break;
+                            }
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+
+#if BTA_HL_DEBUG == TRUE
+    if (!found)
+    {
+        APPL_TRACE_DEBUG("bta_hl_find_mdl_idx_using_handle found=%d mdl_handle=%d  ",
+                          found, mdl_handle);
+    }
+#endif
+    return found;
+}
+/*******************************************************************************
+**
+** Function      bta_hl_is_the_first_reliable_existed
+**
+** Description  This function checks whether the first reliable DCH channel
+**              has been setup on the MCL or not
+**
+** Returns      BOOLEAN - TRUE exist
+**                        FALSE does not exist
+**
+*******************************************************************************/
+BOOLEAN bta_hl_is_the_first_reliable_existed(UINT8 app_idx, UINT8 mcl_idx )
+{
+    tBTA_HL_MCL_CB      *p_mcb = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+    BOOLEAN is_existed =FALSE;
+    UINT8 i ;
+
+    for (i=0; i< BTA_HL_NUM_MDLS_PER_MCL; i++)
+    {
+        if (p_mcb->mdl[i].in_use && p_mcb->mdl[i].is_the_first_reliable)
+        {
+            is_existed = TRUE;
+            break;
+        }
+    }
+
+#if BTA_HL_DEBUG == TRUE
+    APPL_TRACE_DEBUG("bta_hl_is_the_first_reliable_existed is_existed=%d  ",is_existed );
+#endif
+    return is_existed;
+}
+
+/*******************************************************************************
+**
+** Function      bta_hl_find_non_active_mdl_cfg
+**
+** Description  This function finds a valid MDL configiration index and this
+**              MDL ID is not active
+**
+** Returns      BOOLEAN - TRUE found
+**                        FALSE not found
+**
+*******************************************************************************/
+BOOLEAN  bta_hl_find_non_active_mdl_cfg(UINT8 app_idx, UINT8 start_mdl_cfg_idx,
+                                        UINT8 *p_mdl_cfg_idx)
+{
+
+    tBTA_HL_MCL_CB      *p_mcb;
+    tBTA_HL_MDL_CB      *p_dcb;
+    tBTA_HL_MDL_CFG     *p_mdl;
+    BOOLEAN             mdl_in_use;
+    BOOLEAN             found = FALSE;
+    UINT8               i,j,k;
+
+    for (i = start_mdl_cfg_idx; i< BTA_HL_NUM_MDL_CFGS; i++)
+    {
+        mdl_in_use = FALSE;
+        p_mdl = BTA_HL_GET_MDL_CFG_PTR(app_idx, i);
+        for (j=0; j< BTA_HL_NUM_MCLS; j++)
+        {
+            p_mcb  = BTA_HL_GET_MCL_CB_PTR(app_idx, j);
+            if (p_mcb->in_use &&
+                !memcmp(p_mdl->peer_bd_addr,p_mcb->bd_addr,BD_ADDR_LEN))
+            {
+
+                for (k=0; k<BTA_HL_NUM_MDLS_PER_MCL; k++)
+                {
+                    p_dcb  = BTA_HL_GET_MDL_CB_PTR(app_idx, j, k);
+
+                    if (p_dcb->in_use &&  p_mdl->mdl_id == p_dcb->mdl_id)
+                    {
+                        mdl_in_use = TRUE;
+                        break;
+                    }
+                }
+            }
+
+            if (mdl_in_use)
+            {
+                break;
+            }
+        }
+
+        if (!mdl_in_use)
+        {
+            *p_mdl_cfg_idx = i;
+            found = TRUE;
+            break;
+        }
+    }
+
+    return found;
+}
+
+/*******************************************************************************
+**
+** Function      bta_hl_find_mdl_cfg_idx
+**
+** Description  This function finds an available MDL configuration index
+**
+** Returns      BOOLEAN - TRUE found
+**                        FALSE not found
+**
+*******************************************************************************/
+BOOLEAN  bta_hl_find_avail_mdl_cfg_idx(UINT8 app_idx, UINT8 mcl_idx,
+                                       UINT8 *p_mdl_cfg_idx)
+{
+    tBTA_HL_MDL_CFG     *p_mdl, *p_mdl1, *p_mdl2;
+    UINT8               i;
+    BOOLEAN             found=FALSE;
+    UINT8               first_mdl_cfg_idx, second_mdl_cfg_idx, older_mdl_cfg_idx;
+    BOOLEAN             done;
+    UNUSED(mcl_idx);
+
+    for (i=0; i< BTA_HL_NUM_MDL_CFGS; i++)
+    {
+        p_mdl = BTA_HL_GET_MDL_CFG_PTR(app_idx, i);
+        if (!p_mdl->active  )
+        {
+            /* found an unused space to store mdl cfg*/
+            found=TRUE;
+            *p_mdl_cfg_idx =i;
+            break;
+        }
+    }
+
+    if (!found)
+    {
+        /* all available mdl cfg spaces are in use so we need to find the mdl cfg which is
+        not currently in use and has the the oldest time stamp to remove*/
+
+        found = TRUE;
+        if (bta_hl_find_non_active_mdl_cfg(app_idx,0, &first_mdl_cfg_idx))
+        {
+            if (bta_hl_find_non_active_mdl_cfg(app_idx,(UINT8) (first_mdl_cfg_idx+1), &second_mdl_cfg_idx))
+            {
+                done = FALSE;
+                while (!done)
+                {
+                    p_mdl1 = BTA_HL_GET_MDL_CFG_PTR(app_idx, first_mdl_cfg_idx);
+                    p_mdl2 = BTA_HL_GET_MDL_CFG_PTR(app_idx, second_mdl_cfg_idx);
+
+                    if (p_mdl1->time < p_mdl2->time)
+                    {
+                        older_mdl_cfg_idx =  first_mdl_cfg_idx;
+                    }
+                    else
+                    {
+                        older_mdl_cfg_idx =  second_mdl_cfg_idx;
+                    }
+
+                    if (bta_hl_find_non_active_mdl_cfg(app_idx,(UINT8) (second_mdl_cfg_idx+1), &second_mdl_cfg_idx))
+                    {
+                        first_mdl_cfg_idx = older_mdl_cfg_idx;
+                    }
+                    else
+                    {
+                        done = TRUE;
+                    }
+                }
+
+                *p_mdl_cfg_idx = older_mdl_cfg_idx;
+
+            }
+            else
+            {
+                *p_mdl_cfg_idx = first_mdl_cfg_idx;
+            }
+
+        }
+        else
+        {
+            found = FALSE;
+        }
+    }
+
+#if BTA_HL_DEBUG == TRUE
+    if (!found)
+    {
+        APPL_TRACE_DEBUG("bta_hl_find_avail_mdl_cfg_idx found=%d mdl_cfg_idx=%d ",found, *p_mdl_cfg_idx  );
+    }
+#endif
+
+    return found;
+
+
+}
+
+/*******************************************************************************
+**
+** Function      bta_hl_find_mdl_cfg_idx
+**
+** Description  This function finds the MDL configuration index based on
+**              the MDL ID
+**
+** Returns      BOOLEAN - TRUE found
+**                        FALSE not found
+**
+*******************************************************************************/
+BOOLEAN  bta_hl_find_mdl_cfg_idx(UINT8 app_idx, UINT8 mcl_idx,
+                                 tBTA_HL_MDL_ID mdl_id, UINT8 *p_mdl_cfg_idx)
+{
+    tBTA_HL_MCL_CB      *p_mcb = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+    tBTA_HL_MDL_CFG     *p_mdl;
+    UINT8 i ;
+    BOOLEAN found=FALSE;
+
+    *p_mdl_cfg_idx = 0;
+    for (i=0; i< BTA_HL_NUM_MDL_CFGS; i++)
+    {
+        p_mdl = BTA_HL_GET_MDL_CFG_PTR(app_idx, i);
+        if(p_mdl->active)
+            APPL_TRACE_DEBUG("bta_hl_find_mdl_cfg_idx: mdl_id =%d, p_mdl->mdl_id=%d",mdl_id,
+                              p_mdl->mdl_id);
+        if (p_mdl->active &&
+            (!memcmp (p_mcb->bd_addr, p_mdl->peer_bd_addr, BD_ADDR_LEN))&&
+            (p_mdl->mdl_id == mdl_id))
+        {
+            found=TRUE;
+            *p_mdl_cfg_idx =i;
+            break;
+        }
+    }
+
+#if BTA_HL_DEBUG == TRUE
+    if (!found)
+    {
+        APPL_TRACE_DEBUG("bta_hl_find_mdl_cfg_idx found=%d mdl_cfg_idx=%d ",found, i );
+    }
+#endif
+
+    return found;
+
+
+}
+
+
+/*******************************************************************************
+**
+** Function      bta_hl_get_cur_time
+**
+** Description  This function get the cuurent time value
+**
+** Returns      BOOLEAN - TRUE found
+**                        FALSE not found
+**
+*******************************************************************************/
+BOOLEAN  bta_hl_get_cur_time(UINT8 app_idx, UINT8 *p_cur_time)
+{
+    tBTA_HL_MDL_CFG     *p_mdl;
+    UINT8 i, j, time_latest, time;
+    BOOLEAN found=FALSE, result=TRUE;
+
+    for (i=0; i< BTA_HL_NUM_MDL_CFGS; i++)
+    {
+        p_mdl = BTA_HL_GET_MDL_CFG_PTR(app_idx, i);
+        if (p_mdl->active)
+        {
+            found=TRUE;
+            time_latest = p_mdl->time;
+            for (j=(i+1); j< BTA_HL_NUM_MDL_CFGS; j++ )
+            {
+                p_mdl = BTA_HL_GET_MDL_CFG_PTR(app_idx, j);
+                if (p_mdl->active)
+                {
+                    time = p_mdl->time;
+                    if (time > time_latest)
+                    {
+                        time_latest = time;
+                    }
+                }
+            }
+            break;
+        }
+    }
+
+
+    if (found)
+    {
+        if (time_latest < BTA_HL_MAX_TIME)
+        {
+            *p_cur_time = time_latest+1;
+        }
+        else
+        {
+            /* need to wrap around */
+            result = FALSE;
+        }
+    }
+    else
+    {
+        *p_cur_time = BTA_HL_MIN_TIME;
+    }
+
+#if BTA_HL_DEBUG == TRUE
+    if (!result)
+    {
+        APPL_TRACE_DEBUG("bta_hl_get_cur_time result=%s cur_time=%d",
+                          (result?"OK":"FAIL"), *p_cur_time);
+    }
+#endif
+
+    return result;
+}
+
+/*******************************************************************************
+**
+** Function      bta_hl_sort_cfg_time_idx
+**
+** Description  This function sort the mdl configuration idx stored in array a
+**              based on decending time value
+**
+** Returns      BOOLEAN - TRUE found
+**                        FALSE not found
+**
+*******************************************************************************/
+void bta_hl_sort_cfg_time_idx(UINT8 app_idx, UINT8 *a, UINT8 n)
+{
+    tBTA_HL_APP_CB      *p_acb = BTA_HL_GET_APP_CB_PTR(app_idx);
+    UINT8 temp_time, temp_idx;
+    INT16 i, j;
+    for (i = 1; i < n; ++i)
+    {
+        temp_idx = a[i];
+        temp_time = p_acb->mdl_cfg[temp_idx].time;
+        j = i - 1;
+        while ((j >= 0) && (temp_time < p_acb->mdl_cfg[a[j]].time))
+        {
+            a[j + 1] = a[j];
+            --j;
+        }
+        a[j + 1] = temp_idx;
+    }
+}
+
+/*******************************************************************************
+**
+** Function      bta_hl_compact_mdl_cfg_time
+**
+** Description  This function finds the MDL configuration index based on
+**              the MDL ID
+**
+** Returns      BOOLEAN - TRUE found
+**                        FALSE not found
+**
+*******************************************************************************/
+void  bta_hl_compact_mdl_cfg_time(UINT8 app_idx, UINT8 mdep_id)
+{
+    tBTA_HL_MDL_CFG     *p_mdl;
+    UINT8 i, time_min, cnt=0;
+    UINT8   s_arr[BTA_HL_NUM_MDL_CFGS];
+
+
+    for (i=0; i< BTA_HL_NUM_MDL_CFGS; i++)
+    {
+        p_mdl = BTA_HL_GET_MDL_CFG_PTR(app_idx, i);
+        if (p_mdl->active )
+        {
+            s_arr[cnt]= i;
+            cnt++;
+        }
+    }
+
+
+
+#if BTA_HL_DEBUG == TRUE
+    APPL_TRACE_DEBUG("bta_hl_compact_mdl_cfg_time cnt=%d ",cnt );
+#endif
+
+
+    if (cnt)
+    {
+        bta_hl_sort_cfg_time_idx(app_idx, s_arr, cnt);
+        time_min = BTA_HL_MIN_TIME;
+        for (i=0;i<cnt; i++)
+        {
+            p_mdl = BTA_HL_GET_MDL_CFG_PTR(app_idx, s_arr[i]);
+            p_mdl->time = time_min + i;
+            bta_hl_co_save_mdl(mdep_id, s_arr[i], p_mdl);
+        }
+    }
+
+
+}
+
+
+
+/*******************************************************************************
+**
+** Function      bta_hl_is_mdl_exsit_in_mcl
+**
+** Description  This function checks whether the MDL ID
+**              has already existed in teh MCL or not
+**
+** Returns      BOOLEAN - TRUE exist
+**                        FALSE does not exist
+**
+*******************************************************************************/
+BOOLEAN  bta_hl_is_mdl_exsit_in_mcl(UINT8 app_idx, BD_ADDR bd_addr,
+                                    tBTA_HL_MDL_ID mdl_id)
+{
+    tBTA_HL_MDL_CFG     *p_mdl;
+    BOOLEAN             found = FALSE;
+    UINT8               i;
+
+    for (i = 0; i< BTA_HL_NUM_MDL_CFGS; i++)
+    {
+        p_mdl = BTA_HL_GET_MDL_CFG_PTR(app_idx, i);
+        if (p_mdl->active &&
+            !memcmp(p_mdl->peer_bd_addr, bd_addr,BD_ADDR_LEN))
+        {
+            if (mdl_id != BTA_HL_DELETE_ALL_MDL_IDS)
+            {
+                if (p_mdl->mdl_id == mdl_id)
+                {
+                    found = TRUE;
+                    break;
+                }
+            }
+            else
+            {
+                found = TRUE;
+                break;
+            }
+        }
+    }
+
+    return found;
+}
+
+/*******************************************************************************
+**
+** Function      bta_hl_delete_mdl_cfg
+**
+** Description  This function delete the specified MDL ID
+**
+** Returns      BOOLEAN - TRUE Success
+**                        FALSE Failed
+**
+*******************************************************************************/
+BOOLEAN  bta_hl_delete_mdl_cfg(UINT8 app_idx, BD_ADDR bd_addr,
+                               tBTA_HL_MDL_ID mdl_id)
+{
+    tBTA_HL_MDL_CFG     *p_mdl;
+    BOOLEAN             success = FALSE;
+    UINT8               i;
+
+    for (i = 0; i< BTA_HL_NUM_MDL_CFGS; i++)
+    {
+        p_mdl = BTA_HL_GET_MDL_CFG_PTR(app_idx, i);
+        if (p_mdl->active &&
+            !memcmp(p_mdl->peer_bd_addr, bd_addr,BD_ADDR_LEN))
+        {
+            if (mdl_id != BTA_HL_DELETE_ALL_MDL_IDS)
+            {
+                if (p_mdl->mdl_id == mdl_id)
+                {
+                    bta_hl_co_delete_mdl(p_mdl->local_mdep_id, i);
+                    memset(p_mdl, 0, sizeof(tBTA_HL_MDL_CFG));
+                    success = TRUE;
+                    break;
+                }
+            }
+            else
+            {
+                bta_hl_co_delete_mdl(p_mdl->local_mdep_id, i);
+                memset(p_mdl, 0, sizeof(tBTA_HL_MDL_CFG));
+                success = TRUE;
+            }
+        }
+    }
+
+    return success;
+}
+
+
+/*******************************************************************************
+**
+** Function      bta_hl_is_mdl_value_valid
+**
+**
+** Description  This function checks the specified MDL ID is in valid range or not
+**
+** Returns      BOOLEAN - TRUE Success
+**                        FALSE Failed
+**
+** note:   mdl_id range   0x0000 reserved,
+**                        0x0001-oxFEFF dynamic range,
+**                        0xFF00-0xFFFE reserved,
+**                        0xFFFF indicates all MDLs (for delete operation only)
+**
+*******************************************************************************/
+BOOLEAN  bta_hl_is_mdl_value_valid(tBTA_HL_MDL_ID mdl_id)
+{
+    BOOLEAN             status = TRUE;
+
+    if (mdl_id != BTA_HL_DELETE_ALL_MDL_IDS)
+    {
+        if (mdl_id != 0)
+        {
+            if (mdl_id > BTA_HL_MAX_MDL_VAL )
+            {
+                status = FALSE;
+            }
+        }
+        else
+        {
+            status = FALSE;
+        }
+    }
+
+    return status;
+}
+
+/*******************************************************************************
+**
+** Function      bta_hl_find_mdep_cfg_idx
+**
+** Description  This function finds the MDEP configuration index based
+**                on the local MDEP ID
+**
+** Returns      BOOLEAN - TRUE found
+**                        FALSE not found
+**
+*******************************************************************************/
+BOOLEAN bta_hl_find_mdep_cfg_idx(UINT8 app_idx,  tBTA_HL_MDEP_ID local_mdep_id,
+                                 UINT8 *p_mdep_cfg_idx)
+{
+    tBTA_HL_APP_CB      *p_acb = BTA_HL_GET_APP_CB_PTR(app_idx);
+    tBTA_HL_SUP_FEATURE     *p_sup_feature= &p_acb->sup_feature;
+    BOOLEAN found =FALSE;
+    UINT8 i;
+
+    for (i=0; i< p_sup_feature->num_of_mdeps; i++)
+    {
+        if ( p_sup_feature->mdep[i].mdep_id == local_mdep_id)
+        {
+            found = TRUE;
+            *p_mdep_cfg_idx = i;
+            break;
+        }
+    }
+
+#if BTA_HL_DEBUG == TRUE
+    if (!found)
+    {
+        APPL_TRACE_DEBUG("bta_hl_find_mdep_cfg_idx found=%d mdep_idx=%d local_mdep_id=%d ",
+                          found,i, local_mdep_id );
+    }
+#endif
+    return found;
+}
+
+
+/*******************************************************************************
+**
+** Function      bta_hl_find_rxtx_apdu_size
+**
+** Description  This function finds the maximum APDU rx and tx sizes based on
+**              the MDEP configuration data
+**
+** Returns      void
+**
+*******************************************************************************/
+void bta_hl_find_rxtx_apdu_size(UINT8 app_idx, UINT8 mdep_cfg_idx,
+                                UINT16 *p_rx_apu_size,
+                                UINT16 *p_tx_apu_size)
+{
+    tBTA_HL_APP_CB      *p_acb = BTA_HL_GET_APP_CB_PTR(app_idx);
+    tBTA_HL_MDEP_CFG     *p_mdep_cfg;
+    UINT8 i;
+    UINT16 max_rx_apdu_size=0, max_tx_apdu_size=0;
+
+    p_mdep_cfg = &p_acb->sup_feature.mdep[mdep_cfg_idx].mdep_cfg;
+
+
+    for (i=0; i< p_mdep_cfg->num_of_mdep_data_types ; i++)
+    {
+
+        if (max_rx_apdu_size < p_mdep_cfg->data_cfg[i].max_rx_apdu_size)
+        {
+            max_rx_apdu_size = p_mdep_cfg->data_cfg[i].max_rx_apdu_size;
+        }
+
+        if (max_tx_apdu_size < p_mdep_cfg->data_cfg[i].max_tx_apdu_size)
+        {
+            max_tx_apdu_size = p_mdep_cfg->data_cfg[i].max_tx_apdu_size;
+        }
+    }
+
+
+    *p_rx_apu_size = max_rx_apdu_size;
+    *p_tx_apu_size = max_tx_apdu_size;
+
+#if BTA_HL_DEBUG == TRUE
+    APPL_TRACE_DEBUG("bta_hl_find_rxtx_apdu_size max_rx_apdu_size=%d max_tx_apdu_size=%d ",
+                      max_rx_apdu_size, max_tx_apdu_size );
+#endif
+
+
+}
+
+/*******************************************************************************
+**
+** Function      bta_hl_validate_peer_cfg
+**
+** Description  This function validates the peer DCH configuration
+**
+** Returns      BOOLEAN - TRUE validation is successful
+**                        FALSE validation failed
+**
+*******************************************************************************/
+BOOLEAN bta_hl_validate_peer_cfg(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx,
+                                 tBTA_HL_MDEP_ID peer_mdep_id,
+                                 tBTA_HL_MDEP_ROLE peer_mdep_role,
+                                 UINT8 sdp_idx)
+{
+    tBTA_HL_MCL_CB      *p_mcb = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+    tBTA_HL_MDL_CB      *p_dcb = BTA_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx);
+    tBTA_HL_SDP_REC     *p_rec;
+    BOOLEAN peer_found =FALSE;
+    UINT8 i;
+
+    APPL_TRACE_DEBUG("bta_hl_validate_peer_cfg sdp_idx=%d app_idx %d", sdp_idx, app_idx);
+
+
+    if (p_dcb->local_mdep_id == BTA_HL_ECHO_TEST_MDEP_ID)
+    {
+        return TRUE;
+    }
+
+    p_rec = &p_mcb->sdp.sdp_rec[sdp_idx];
+    for (i=0; i< p_rec->num_mdeps; i++)
+    {
+        APPL_TRACE_DEBUG("mdep_id %d peer_mdep_id %d",p_rec->mdep_cfg[i].mdep_id , peer_mdep_id);
+        APPL_TRACE_DEBUG("mdep_role %d peer_mdep_role %d",p_rec->mdep_cfg[i].mdep_role,
+                          peer_mdep_role)
+        if ( (p_rec->mdep_cfg[i].mdep_id == peer_mdep_id) &&
+             (p_rec->mdep_cfg[i].mdep_role == peer_mdep_role))
+        {
+            peer_found = TRUE;
+
+            break;
+        }
+    }
+
+#if BTA_HL_DEBUG == TRUE
+    if (!peer_found)
+    {
+        APPL_TRACE_DEBUG("bta_hl_validate_peer_cfg failed num_mdeps=%d",p_rec->num_mdeps);
+    }
+#endif
+    return peer_found;
+}
+
+/*******************************************************************************
+**
+** Function      bta_hl_chk_local_cfg
+**
+** Description  This function check whether the local DCH configuration is OK or not
+**
+** Returns      tBTA_HL_STATUS - OK - local DCH configuration is OK
+**                               NO_FIRST_RELIABLE - the streaming DCH configuration
+**                                                   is not OK and it needs to use
+**                                                   reliable DCH configuration
+**
+*******************************************************************************/
+tBTA_HL_STATUS bta_hl_chk_local_cfg(UINT8 app_idx, UINT8 mcl_idx,
+                                    UINT8 mdep_cfg_idx,
+                                    tBTA_HL_DCH_CFG local_cfg)
+{
+    tBTA_HL_APP_CB      *p_acb = BTA_HL_GET_APP_CB_PTR(app_idx);
+    tBTA_HL_STATUS status = BTA_HL_STATUS_OK;
+
+    if ( mdep_cfg_idx &&
+         (p_acb->sup_feature.mdep[mdep_cfg_idx].mdep_cfg.mdep_role == BTA_HL_MDEP_ROLE_SOURCE) &&
+         (!bta_hl_is_the_first_reliable_existed(app_idx, mcl_idx)) &&
+         (local_cfg != BTA_HL_DCH_CFG_RELIABLE))
+    {
+        status =  BTA_HL_STATUS_NO_FIRST_RELIABLE;
+        APPL_TRACE_ERROR("BTA_HL_STATUS_INVALID_DCH_CFG");
+    }
+
+    return status;
+}
+
+
+/*******************************************************************************
+**
+** Function      bta_hl_validate_reconnect_params
+**
+** Description  This function validates the reconnect parameters
+**
+** Returns      BOOLEAN - TRUE validation is successful
+**                        FALSE validation failed
+*******************************************************************************/
+BOOLEAN bta_hl_validate_reconnect_params(UINT8 app_idx, UINT8 mcl_idx,
+                                         tBTA_HL_API_DCH_RECONNECT *p_reconnect,
+                                         UINT8 *p_mdep_cfg_idx, UINT8 *p_mdl_cfg_idx)
+{
+    tBTA_HL_APP_CB      *p_acb = BTA_HL_GET_APP_CB_PTR(app_idx);
+    tBTA_HL_SUP_FEATURE *p_sup_feature = &p_acb->sup_feature;
+    UINT8               num_mdeps;
+    UINT8               mdl_cfg_idx;
+    BOOLEAN local_mdep_id_found =FALSE;
+    BOOLEAN mdl_cfg_found =FALSE;
+    BOOLEAN            status=FALSE;
+    UINT8 i, in_use_mdl_idx = 0;
+
+#if BTA_HL_DEBUG == TRUE
+    APPL_TRACE_DEBUG("bta_hl_validate_reconnect_params  mdl_id=%d app_idx=%d", p_reconnect->mdl_id, app_idx);
+#endif
+    if (bta_hl_find_mdl_cfg_idx(app_idx, mcl_idx, p_reconnect->mdl_id, &mdl_cfg_idx))
+    {
+        mdl_cfg_found = TRUE;
+    }
+
+#if BTA_HL_DEBUG == TRUE
+    if (!mdl_cfg_found)
+    {
+        APPL_TRACE_DEBUG("mdl_cfg_found not found");
+    }
+#endif
+
+
+    if (mdl_cfg_found)
+    {
+        num_mdeps = p_sup_feature->num_of_mdeps;
+        for (i=0; i< num_mdeps ; i++)
+        {
+            if ( p_sup_feature->mdep[i].mdep_id == p_acb->mdl_cfg[mdl_cfg_idx].local_mdep_id)
+            {
+                local_mdep_id_found = TRUE;
+                *p_mdep_cfg_idx =i;
+                *p_mdl_cfg_idx = mdl_cfg_idx;
+                break;
+            }
+        }
+    }
+
+#if BTA_HL_DEBUG == TRUE
+    if (!local_mdep_id_found)
+    {
+        APPL_TRACE_DEBUG("local_mdep_id not found");
+    }
+#endif
+
+
+    if (local_mdep_id_found)
+    {
+        if (!bta_hl_find_mdl_idx(app_idx,mcl_idx, p_reconnect->mdl_id, &in_use_mdl_idx))
+        {
+            status= TRUE;
+        }
+        else
+        {
+            APPL_TRACE_ERROR("mdl_id=%d is curreltly in use",p_reconnect->mdl_id);
+        }
+    }
+
+#if BTA_HL_DEBUG == TRUE
+    if (!status)
+    {
+        APPL_TRACE_DEBUG("Reconnect validation failed local_mdep_id found=%d mdl_cfg_idx found=%d in_use_mdl_idx=%d ",
+                          local_mdep_id_found,  mdl_cfg_found, in_use_mdl_idx);
+    }
+#endif
+    return status;
+}
+
+/*******************************************************************************
+**
+** Function      bta_hl_find_avail_mcl_idx
+**
+** Returns      BOOLEAN - TRUE found
+**                        FALSE not found
+**
+*******************************************************************************/
+BOOLEAN bta_hl_find_avail_mcl_idx(UINT8 app_idx, UINT8 *p_mcl_idx)
+{
+    BOOLEAN found=FALSE;
+    UINT8 i;
+
+    for (i=0; i < BTA_HL_NUM_MCLS ; i ++)
+    {
+        if (!bta_hl_cb.acb[app_idx].mcb[i].in_use)
+        {
+            found = TRUE;
+            *p_mcl_idx = i;
+            break;
+        }
+    }
+
+#if BTA_HL_DEBUG == TRUE
+    if (!found)
+    {
+        APPL_TRACE_DEBUG("bta_hl_find_avail_mcl_idx found=%d idx=%d",
+                          found, i);
+    }
+#endif
+    return found;
+}
+
+
+
+/*******************************************************************************
+**
+** Function      bta_hl_find_avail_mdl_idx
+**
+** Description  This function finds an available MDL control block index
+**
+** Returns      BOOLEAN - TRUE found
+**                        FALSE not found
+**
+*******************************************************************************/
+BOOLEAN bta_hl_find_avail_mdl_idx(UINT8 app_idx, UINT8 mcl_idx,
+                                  UINT8 *p_mdl_idx)
+{
+    tBTA_HL_MCL_CB      *p_mcb = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+    BOOLEAN found=FALSE;
+    UINT8 i;
+
+    for (i=0; i < BTA_HL_NUM_MDLS_PER_MCL ; i ++)
+    {
+        if (!p_mcb->mdl[i].in_use)
+        {
+            memset((void *)&p_mcb->mdl[i],0, sizeof(tBTA_HL_MDL_CB));
+            found = TRUE;
+            *p_mdl_idx = i;
+            break;
+        }
+    }
+
+#if BTA_HL_DEBUG == TRUE
+    if (!found)
+    {
+        APPL_TRACE_DEBUG("bta_hl_find_avail_mdl_idx found=%d idx=%d",
+                          found, i);
+    }
+#endif
+    return found;
+}
+
+/*******************************************************************************
+**
+** Function      bta_hl_is_a_duplicate_id
+**
+** Description  This function finds the application has been used or not
+**
+** Returns      BOOLEAN - TRUE the app_id is a duplicate ID
+**                        FALSE not a duplicate ID
+*******************************************************************************/
+BOOLEAN bta_hl_is_a_duplicate_id(UINT8 app_id)
+{
+    BOOLEAN is_duplicate=FALSE;
+    UINT8 i;
+
+    for (i=0; i < BTA_HL_NUM_APPS ; i ++)
+    {
+        if (bta_hl_cb.acb[i].in_use &&
+            (bta_hl_cb.acb[i].app_id == app_id))
+        {
+            is_duplicate = TRUE;
+
+            break;
+        }
+    }
+
+#if BTA_HL_DEBUG == TRUE
+    if (is_duplicate)
+    {
+
+        APPL_TRACE_DEBUG("bta_hl_is_a_duplicate_id app_id=%d is_duplicate=%d",
+                          app_id, is_duplicate);
+    }
+#endif
+
+    return is_duplicate;
+}
+
+
+/*******************************************************************************
+**
+** Function      bta_hl_find_avail_app_idx
+**
+** Description  This function finds an available application control block index
+**
+** Returns      BOOLEAN - TRUE found
+**                        FALSE not found
+**
+*******************************************************************************/
+BOOLEAN bta_hl_find_avail_app_idx(UINT8 *p_idx)
+{
+    BOOLEAN found=FALSE;
+    UINT8 i;
+
+    for (i=0; i < BTA_HL_NUM_APPS ; i ++)
+    {
+        if (!bta_hl_cb.acb[i].in_use)
+        {
+            found = TRUE;
+            *p_idx = i;
+            break;
+        }
+    }
+
+#if BTA_HL_DEBUG == TRUE
+    if (!found)
+    {
+        APPL_TRACE_DEBUG("bta_hl_find_avail_app_idx found=%d app_idx=%d",
+                          found, i);
+    }
+#endif
+    return found;
+}
+
+/*******************************************************************************
+**
+** Function      bta_hl_app_update
+**
+** Description  This function registers an HDP application MCAP and DP
+**
+** Returns      tBTA_HL_STATUS -registration status
+**
+*******************************************************************************/
+tBTA_HL_STATUS bta_hl_app_update(UINT8 app_id, BOOLEAN is_register)
+{
+    tBTA_HL_STATUS  status = BTA_HL_STATUS_OK;
+    tBTA_HL_APP_CB  *p_acb = BTA_HL_GET_APP_CB_PTR(0);
+    tMCA_CS         mca_cs;
+    UINT8           i, mdep_idx, num_of_mdeps;
+    UINT8           mdep_counter = 0;
+
+
+#if BTA_HL_DEBUG == TRUE
+    APPL_TRACE_DEBUG("bta_hl_app_update app_id=%d", app_id);
+#endif
+
+    if (is_register)
+    {
+        if ((status == BTA_HL_STATUS_OK) &&
+        bta_hl_co_get_num_of_mdep(app_id, &num_of_mdeps))
+        {
+            for (i=0; i < num_of_mdeps; i++)
+            {
+                mca_cs.type = MCA_TDEP_DATA;
+                mca_cs.max_mdl = BTA_HL_NUM_MDLS_PER_MDEP;
+                mca_cs.p_data_cback = bta_hl_mcap_data_cback;
+                /* Find the first available mdep index, and create a MDL Endpoint */
+                // make a function later if needed
+                for (mdep_idx = 1; mdep_idx < BTA_HL_NUM_MDEPS; mdep_idx++)
+                {
+                    if ( p_acb->sup_feature.mdep[mdep_idx].mdep_id == 0)
+                    {
+                        break; /* We found an available index */
+                    }
+                    else
+                    {
+                        mdep_counter++;
+                    }
+                }
+                /* If no available MDEPs, return error */
+                if (mdep_idx == BTA_HL_NUM_MDEPS)
+                {
+                    APPL_TRACE_ERROR("bta_hl_app_update: Out of MDEP IDs");
+                    status = BTA_HL_STATUS_MCAP_REG_FAIL;
+                    break;
+                }
+                if (MCA_CreateDep((tMCA_HANDLE)p_acb->app_handle,
+                              &(p_acb->sup_feature.mdep[mdep_idx].mdep_id), &mca_cs) == MCA_SUCCESS)
+                {
+                    if (bta_hl_co_get_mdep_config(app_id,
+                                                  mdep_idx,
+                                                  mdep_counter,
+                                                  p_acb->sup_feature.mdep[mdep_idx].mdep_id,
+                                                  &p_acb->sup_feature.mdep[mdep_idx].mdep_cfg))
+                    {
+                        p_acb->sup_feature.mdep[mdep_idx].ori_app_id = app_id;
+                        APPL_TRACE_DEBUG("mdep idx %d id %d ori_app_id %d num data type %d",mdep_idx,
+                               p_acb->sup_feature.mdep[mdep_idx].mdep_id,
+                               p_acb->sup_feature.mdep[mdep_idx].ori_app_id,
+                               p_acb->sup_feature.mdep[mdep_idx].mdep_cfg.num_of_mdep_data_types);
+                        if (p_acb->sup_feature.mdep[mdep_idx].mdep_cfg.mdep_role ==
+                            BTA_HL_MDEP_ROLE_SOURCE)
+                        {
+                            p_acb->sup_feature.app_role_mask |= BTA_HL_MDEP_ROLE_MASK_SOURCE;
+                        }
+                        else if (p_acb->sup_feature.mdep[mdep_idx].mdep_cfg.mdep_role ==
+                                 BTA_HL_MDEP_ROLE_SINK)
+                        {
+                            p_acb->sup_feature.app_role_mask |= BTA_HL_MDEP_ROLE_MASK_SINK;
+                        }
+                        else
+                        {
+                            APPL_TRACE_ERROR("bta_hl_app_registration: Invalid Role %d",
+                                            p_acb->sup_feature.mdep[mdep_idx].mdep_cfg.mdep_role);
+                            status = BTA_HL_STATUS_MDEP_CO_FAIL;
+                            break;
+                        }
+                    }
+                    else
+                    {
+                        APPL_TRACE_ERROR("bta_hl_app_registration: Cfg callout failed");
+                        status = BTA_HL_STATUS_MDEP_CO_FAIL;
+                        break;
+                    }
+                }
+                else
+                {
+                    APPL_TRACE_ERROR("bta_hl_app_registration: MCA_CreateDep failed");
+                    status = BTA_HL_STATUS_MCAP_REG_FAIL;
+                    break;
+                }
+
+            }
+            p_acb->sup_feature.num_of_mdeps += num_of_mdeps;
+            APPL_TRACE_DEBUG("num_of_mdeps %d", p_acb->sup_feature.num_of_mdeps);
+
+            if ((status == BTA_HL_STATUS_OK) &&
+                (p_acb->sup_feature.app_role_mask == BTA_HL_MDEP_ROLE_MASK_SOURCE))
+            {
+                p_acb->sup_feature.advertize_source_sdp =
+                bta_hl_co_advrtise_source_sdp(app_id);
+            }
+
+            if ((status == BTA_HL_STATUS_OK)&&
+                (!bta_hl_co_get_echo_config(app_id, &p_acb->sup_feature.echo_cfg)))
+            {
+                status = BTA_HL_STATUS_ECHO_CO_FAIL;
+            }
+
+            if ((status == BTA_HL_STATUS_OK)&&
+                (!bta_hl_co_load_mdl_config(app_id, BTA_HL_NUM_MDL_CFGS, &p_acb->mdl_cfg[0])))
+            {
+                status = BTA_HL_STATUS_MDL_CFG_CO_FAIL;
+            }
+        }
+        else
+        {
+            status = BTA_HL_STATUS_MDEP_CO_FAIL;
+        }
+    }
+    else
+    {
+        for (i=1; i<BTA_HL_NUM_MDEPS; i++)
+        {
+            if (p_acb->sup_feature.mdep[i].ori_app_id == app_id)
+            {
+                APPL_TRACE_DEBUG("Found index %", i);
+
+
+                if (MCA_DeleteDep((tMCA_HANDLE)p_acb->app_handle,
+                                  (p_acb->sup_feature.mdep[i].mdep_id)) != MCA_SUCCESS)
+                {
+                    APPL_TRACE_ERROR("Error deregistering");
+                    status = BTA_HL_STATUS_MCAP_REG_FAIL;
+                    return status;
+                }
+                memset(&p_acb->sup_feature.mdep[i], 0, sizeof(tBTA_HL_MDEP));
+            }
+        }
+
+
+    }
+
+    if (status == BTA_HL_STATUS_OK)
+    {
+        /* Register/Update MDEP(s) in SDP Record */
+        status = bta_hl_sdp_update(app_id);
+    }
+    /* else do cleanup */
+
+
+    return status;
+}
+
+
+/*******************************************************************************
+**
+** Function      bta_hl_app_registration
+**
+** Description  This function registers an HDP application MCAP and DP
+**
+** Returns      tBTA_HL_STATUS -registration status
+**
+*******************************************************************************/
+tBTA_HL_STATUS bta_hl_app_registration(UINT8 app_idx)
+{
+    tBTA_HL_STATUS  status = BTA_HL_STATUS_OK;
+    tBTA_HL_APP_CB  *p_acb = BTA_HL_GET_APP_CB_PTR(app_idx);
+    tMCA_REG        reg;
+    tMCA_CS         mca_cs;
+    UINT8           i, num_of_mdeps;
+    UINT8           mdep_counter = 0;
+
+#if BTA_HL_DEBUG == TRUE
+    APPL_TRACE_DEBUG("bta_hl_app_registration app_idx=%d", app_idx);
+#endif
+
+    reg.ctrl_psm = p_acb->ctrl_psm;
+    reg.data_psm = p_acb->data_psm;
+    reg.sec_mask = p_acb->sec_mask;
+    reg.rsp_tout = BTA_HL_MCAP_RSP_TOUT;
+
+    if ( (p_acb->app_handle = (tBTA_HL_APP_HANDLE) MCA_Register(&reg, bta_hl_mcap_ctrl_cback))!=0)
+    {
+        mca_cs.type = MCA_TDEP_ECHO;
+        mca_cs.max_mdl = BTA_HL_NUM_MDLS_PER_MDEP;
+        mca_cs.p_data_cback = bta_hl_mcap_data_cback;
+
+        if (MCA_CreateDep((tMCA_HANDLE)p_acb->app_handle,
+                          &(p_acb->sup_feature.mdep[0].mdep_id),
+                          &mca_cs) == MCA_SUCCESS)
+        {
+            if (p_acb->sup_feature.mdep[0].mdep_id != BTA_HL_ECHO_TEST_MDEP_ID)
+            {
+                status = BTA_HL_STATUS_MCAP_REG_FAIL;
+                APPL_TRACE_ERROR("BAD MDEP ID for echo test mdep_id=%d",
+                                  p_acb->sup_feature.mdep[0].mdep_id );
+            }
+        }
+        else
+        {
+            status = BTA_HL_STATUS_MCAP_REG_FAIL;
+            APPL_TRACE_ERROR("MCA_CreateDep for echo test(mdep_id=0) failed");
+        }
+
+
+        if ((status == BTA_HL_STATUS_OK) &&
+            bta_hl_co_get_num_of_mdep(p_acb->app_id, &num_of_mdeps))
+        {
+            p_acb->sup_feature.num_of_mdeps = num_of_mdeps+1;
+
+            for (i=1; i<p_acb->sup_feature.num_of_mdeps; i++)
+            {
+                mca_cs.type = MCA_TDEP_DATA;
+                mca_cs.max_mdl = BTA_HL_NUM_MDLS_PER_MDEP;
+                mca_cs.p_data_cback = bta_hl_mcap_data_cback;
+
+                if (MCA_CreateDep((tMCA_HANDLE)p_acb->app_handle,
+                                  &(p_acb->sup_feature.mdep[i].mdep_id), &mca_cs) == MCA_SUCCESS)
+                {
+                    if (bta_hl_co_get_mdep_config(p_acb->app_id,
+                                                  i,mdep_counter,
+                                                  p_acb->sup_feature.mdep[i].mdep_id,
+                                                  &p_acb->sup_feature.mdep[i].mdep_cfg))
+                    {
+                        if (p_acb->sup_feature.mdep[i].mdep_cfg.mdep_role == BTA_HL_MDEP_ROLE_SOURCE)
+                        {
+                            p_acb->sup_feature.app_role_mask |= BTA_HL_MDEP_ROLE_MASK_SOURCE;
+                        }
+                        else if (p_acb->sup_feature.mdep[i].mdep_cfg.mdep_role == BTA_HL_MDEP_ROLE_SINK)
+                        {
+                            p_acb->sup_feature.app_role_mask |= BTA_HL_MDEP_ROLE_MASK_SINK;
+                        }
+                        else
+                        {
+                            status = BTA_HL_STATUS_MDEP_CO_FAIL;
+                            break;
+                        }
+                        p_acb->sup_feature.mdep[i].ori_app_id = p_acb->app_id;
+                        APPL_TRACE_DEBUG("index %d ori_app_id %d", i,
+                                          p_acb->sup_feature.mdep[i].ori_app_id);
+                    }
+                    else
+                    {
+                        status = BTA_HL_STATUS_MDEP_CO_FAIL;
+                        break;
+                    }
+                }
+                else
+                {
+                    status = BTA_HL_STATUS_MCAP_REG_FAIL;
+                    break;
+                }
+            }
+
+
+
+            if ((status == BTA_HL_STATUS_OK) &&
+                (p_acb->sup_feature.app_role_mask == BTA_HL_MDEP_ROLE_MASK_SOURCE))
+            {
+                /* this is a source only applciation */
+                p_acb->sup_feature.advertize_source_sdp =
+                bta_hl_co_advrtise_source_sdp(p_acb->app_id);
+            }
+
+            if ((status == BTA_HL_STATUS_OK)&&
+                (!bta_hl_co_get_echo_config(p_acb->app_id, &p_acb->sup_feature.echo_cfg)))
+            {
+                status = BTA_HL_STATUS_ECHO_CO_FAIL;
+            }
+
+            if ((status == BTA_HL_STATUS_OK)&&
+                (!bta_hl_co_load_mdl_config(p_acb->app_id, BTA_HL_NUM_MDL_CFGS, &p_acb->mdl_cfg[0])))
+            {
+                status = BTA_HL_STATUS_MDL_CFG_CO_FAIL;
+            }
+        }
+        else
+        {
+            status = BTA_HL_STATUS_MDEP_CO_FAIL;
+        }
+    }
+    else
+    {
+        status = BTA_HL_STATUS_MCAP_REG_FAIL;
+    }
+
+    if (status == BTA_HL_STATUS_OK)
+    {
+        status = bta_hl_sdp_register(app_idx);
+    }
+
+    return status;
+}
+
+
+/*******************************************************************************
+**
+** Function         bta_hl_discard_data
+**
+** Description  This function discard an HDP event
+**
+** Returns     void
+**
+*******************************************************************************/
+void bta_hl_discard_data(UINT16 event, tBTA_HL_DATA *p_data)
+{
+
+#if BTA_HL_DEBUG == TRUE
+    APPL_TRACE_ERROR("BTA HL Discard event=%s",bta_hl_evt_code(event));
+
+#endif
+
+    switch (event)
+    {
+        case BTA_HL_API_SEND_DATA_EVT:
+            break;
+
+        case BTA_HL_MCA_RCV_DATA_EVT:
+            osi_free_and_reset((void **)&p_data->mca_rcv_data_evt.p_pkt);
+            break;
+
+        default:
+            /*Nothing to free*/
+            break;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_hl_save_mdl_cfg
+**
+** Description    This function saves the MDL configuration
+**
+** Returns     void
+**
+*******************************************************************************/
+void bta_hl_save_mdl_cfg(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx )
+{
+    tBTA_HL_APP_CB      *p_acb  = BTA_HL_GET_APP_CB_PTR(app_idx);
+    tBTA_HL_MCL_CB      *p_mcb  = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+    tBTA_HL_MDL_CB      *p_dcb  = BTA_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx);
+    UINT8 mdl_cfg_idx;
+    tBTA_HL_MDL_ID mdl_id;
+    BOOLEAN      found=TRUE;
+    tBTA_HL_MDL_CFG mdl_cfg;
+    tBTA_HL_MDEP *p_mdep_cfg;
+    tBTA_HL_L2CAP_CFG_INFO l2cap_cfg;
+    UINT8 time_val = 0;
+    mdl_id = p_dcb->mdl_id;
+    if (!bta_hl_find_mdl_cfg_idx(app_idx, mcl_idx, mdl_id, &mdl_cfg_idx))
+    {
+        if (!bta_hl_find_avail_mdl_cfg_idx(app_idx, mcl_idx, &mdl_cfg_idx))
+        {
+            APPL_TRACE_ERROR("No space to save the MDL config");
+            found= FALSE; /*no space available*/
+        }
+    }
+
+    if (found)
+    {
+        bta_hl_get_l2cap_cfg(p_dcb->mdl_handle, &l2cap_cfg);
+        if (!bta_hl_get_cur_time(app_idx, &time_val ))
+        {
+            bta_hl_compact_mdl_cfg_time(app_idx,p_dcb->local_mdep_id);
+            bta_hl_get_cur_time(app_idx, &time_val);
+        }
+        mdl_cfg.active = TRUE;
+        mdl_cfg.time = time_val;
+        mdl_cfg.mdl_id  = p_dcb->mdl_id;
+        mdl_cfg.dch_mode = p_dcb->dch_mode;
+        mdl_cfg.mtu = l2cap_cfg.mtu;
+        mdl_cfg.fcs = l2cap_cfg.fcs;
+
+        bdcpy(mdl_cfg.peer_bd_addr, p_mcb->bd_addr);
+        mdl_cfg.local_mdep_id= p_dcb->local_mdep_id;
+        p_mdep_cfg = &p_acb->sup_feature.mdep[p_dcb->local_mdep_cfg_idx];
+        mdl_cfg.local_mdep_role= p_mdep_cfg->mdep_cfg.mdep_role;
+        memcpy(&p_acb->mdl_cfg[mdl_cfg_idx], &mdl_cfg, sizeof(tBTA_HL_MDL_CFG));
+        bta_hl_co_save_mdl(mdl_cfg.local_mdep_id, mdl_cfg_idx, &mdl_cfg);
+    }
+
+#if BTA_HL_DEBUG == TRUE
+    if (found)
+    {
+        if (p_dcb->mtu != l2cap_cfg.mtu)
+        {
+            APPL_TRACE_WARNING("MCAP and L2CAP peer mtu size out of sync from MCAP mtu=%d from l2cap mtu=%d",
+                                p_dcb->mtu, l2cap_cfg.mtu);
+        }
+        APPL_TRACE_DEBUG("bta_hl_save_mdl_cfg saved=%d", found);
+        APPL_TRACE_DEBUG("Saved. L2cap cfg mdl_id=%d mtu=%d fcs=%d dch_mode=%d",
+                          mdl_cfg.mdl_id, mdl_cfg.mtu, mdl_cfg.fcs,  mdl_cfg.dch_mode);
+    }
+#endif
+
+
+
+}
+
+/*******************************************************************************
+**
+** Function      bta_hl_set_dch_chan_cfg
+**
+** Description    This function setups the L2CAP DCH channel configuration
+**
+** Returns     void
+*******************************************************************************/
+void bta_hl_set_dch_chan_cfg(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx,tBTA_HL_DATA *p_data)
+{
+    tBTA_HL_APP_CB *p_acb  = BTA_HL_GET_APP_CB_PTR(app_idx);
+    tBTA_HL_MDL_CB *p_dcb  = BTA_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx);
+    UINT8 l2cap_mode = L2CAP_FCR_ERTM_MODE;
+    tBTA_HL_SUP_FEATURE *p_sup_feature= &p_acb->sup_feature;
+    UINT8 local_mdep_cfg_idx = p_dcb->local_mdep_cfg_idx;
+
+    switch (p_dcb->dch_oper)
+    {
+        case BTA_HL_DCH_OP_LOCAL_RECONNECT:
+        case BTA_HL_DCH_OP_REMOTE_RECONNECT:
+            if (p_dcb->dch_mode  == BTA_HL_DCH_MODE_STREAMING)
+                l2cap_mode = L2CAP_FCR_STREAM_MODE;
+            break;
+        case BTA_HL_DCH_OP_LOCAL_OPEN:
+            if (p_data->mca_evt.mca_data.create_cfm.cfg == BTA_HL_DCH_CFG_STREAMING)
+                l2cap_mode = L2CAP_FCR_STREAM_MODE;
+            break;
+        case BTA_HL_DCH_OP_REMOTE_OPEN:
+            if (p_dcb->local_cfg == BTA_HL_DCH_CFG_STREAMING )
+                l2cap_mode = L2CAP_FCR_STREAM_MODE;
+            break;
+        default:
+            APPL_TRACE_ERROR("Invalid dch oper=%d for set dch chan cfg", p_dcb->dch_oper);
+            break;
+    }
+    p_dcb->chnl_cfg.fcr_opt.mode        = l2cap_mode;
+    p_dcb->chnl_cfg.fcr_opt.mps         = bta_hl_set_mps(p_dcb->max_rx_apdu_size);
+    p_dcb->chnl_cfg.fcr_opt.tx_win_sz   = bta_hl_set_tx_win_size(p_dcb->max_rx_apdu_size,
+                                                                 p_dcb->chnl_cfg.fcr_opt.mps);
+    p_dcb->chnl_cfg.fcr_opt.max_transmit= BTA_HL_L2C_MAX_TRANSMIT;
+    p_dcb->chnl_cfg.fcr_opt.rtrans_tout = BTA_HL_L2C_RTRANS_TOUT;
+    p_dcb->chnl_cfg.fcr_opt.mon_tout    = BTA_HL_L2C_MON_TOUT;
+
+    p_dcb->chnl_cfg.user_rx_buf_size    = bta_hl_set_user_rx_buf_size(p_dcb->max_rx_apdu_size);
+    p_dcb->chnl_cfg.user_tx_buf_size    = bta_hl_set_user_tx_buf_size(p_dcb->max_tx_apdu_size);
+    p_dcb->chnl_cfg.fcr_rx_buf_size     = L2CAP_INVALID_ERM_BUF_SIZE;
+    p_dcb->chnl_cfg.fcr_tx_buf_size     = L2CAP_INVALID_ERM_BUF_SIZE;
+    p_dcb->chnl_cfg.data_mtu            = p_dcb->max_rx_apdu_size;
+
+    p_dcb->chnl_cfg.fcs = BTA_HL_MCA_NO_FCS;
+    if (local_mdep_cfg_idx !=  BTA_HL_ECHO_TEST_MDEP_CFG_IDX)
+    {
+        if (p_sup_feature->mdep[local_mdep_cfg_idx].mdep_cfg.mdep_role ==
+            BTA_HL_MDEP_ROLE_SOURCE)
+        {
+            p_dcb->chnl_cfg.fcs = BTA_HL_DEFAULT_SOURCE_FCS;
+        }
+    }
+    else
+    {
+        p_dcb->chnl_cfg.fcs = BTA_HL_MCA_USE_FCS;
+    }
+
+#if BTA_HL_DEBUG == TRUE
+    APPL_TRACE_DEBUG("L2CAP Params l2cap_mode[3-ERTM 4-STREAM]=%d", l2cap_mode);
+    APPL_TRACE_DEBUG("Use FCS =%s mtu=%d", ((p_dcb->chnl_cfg.fcs & 1)?"YES":"NO"),
+                      p_dcb->chnl_cfg.data_mtu);
+    APPL_TRACE_DEBUG("tx_win_sz=%d, max_transmit=%d, rtrans_tout=%d, mon_tout=%d, mps=%d",
+                      p_dcb->chnl_cfg.fcr_opt.tx_win_sz,
+                      p_dcb->chnl_cfg.fcr_opt.max_transmit,
+                      p_dcb->chnl_cfg.fcr_opt.rtrans_tout,
+                      p_dcb->chnl_cfg.fcr_opt.mon_tout,
+                      p_dcb->chnl_cfg.fcr_opt.mps);
+
+    APPL_TRACE_DEBUG("USER rx_buf_size=%d, tx_buf_size=%d, FCR rx_buf_size=%d, tx_buf_size=%d",
+                      p_dcb->chnl_cfg.user_rx_buf_size,
+                      p_dcb->chnl_cfg.user_tx_buf_size,
+                      p_dcb->chnl_cfg.fcr_rx_buf_size,
+                      p_dcb->chnl_cfg.fcr_tx_buf_size);
+
+#endif
+
+
+
+
+
+
+
+
+}
+
+/*******************************************************************************
+**
+** Function      bta_hl_get_l2cap_cfg
+**
+** Description    This function get the current L2CAP channel configuration
+**
+** Returns     BOOLEAN - TRUE - operation is successful
+*******************************************************************************/
+BOOLEAN bta_hl_get_l2cap_cfg(tBTA_HL_MDL_HANDLE mdl_hnd, tBTA_HL_L2CAP_CFG_INFO *p_cfg)
+{
+    BOOLEAN success = FALSE;
+    UINT16 lcid;
+    tL2CAP_CFG_INFO *p_our_cfg;
+    tL2CAP_CH_CFG_BITS our_cfg_bits;
+    tL2CAP_CFG_INFO *p_peer_cfg;
+    tL2CAP_CH_CFG_BITS peer_cfg_bits;
+
+    lcid = MCA_GetL2CapChannel((tMCA_DL) mdl_hnd);
+    if ( lcid &&
+         L2CA_GetCurrentConfig(lcid, &p_our_cfg, &our_cfg_bits, &p_peer_cfg,
+                               &peer_cfg_bits))
+    {
+        p_cfg->fcs = BTA_HL_MCA_NO_FCS;
+        if (our_cfg_bits & L2CAP_CH_CFG_MASK_FCS)
+        {
+            p_cfg->fcs |= p_our_cfg->fcs;
+        }
+        else
+        {
+            p_cfg->fcs = BTA_HL_MCA_USE_FCS;
+        }
+
+        if (p_cfg->fcs != BTA_HL_MCA_USE_FCS )
+        {
+            if (peer_cfg_bits & L2CAP_CH_CFG_MASK_FCS)
+            {
+                p_cfg->fcs |= p_peer_cfg->fcs;
+            }
+            else
+            {
+                p_cfg->fcs = BTA_HL_MCA_USE_FCS;
+            }
+        }
+
+        p_cfg->mtu =0;
+        if (peer_cfg_bits & L2CAP_CH_CFG_MASK_MTU)
+        {
+            p_cfg->mtu = p_peer_cfg->mtu;
+        }
+        else
+        {
+            p_cfg->mtu = L2CAP_DEFAULT_MTU;
+        }
+        success = TRUE;
+    }
+    else
+    {
+      p_cfg->mtu = L2CAP_DEFAULT_MTU;
+      p_cfg->fcs = BTA_HL_L2C_NO_FCS;
+    }
+
+#if BTA_HL_DEBUG == TRUE
+    if (!success)
+    {
+        APPL_TRACE_DEBUG("bta_hl_get_l2cap_cfg success=%d mdl=%d lcid=%d", success, mdl_hnd, lcid);
+        APPL_TRACE_DEBUG("l2cap mtu=%d fcs=%d", p_cfg->mtu, p_cfg->fcs);
+    }
+#endif
+
+    return success;
+}
+
+/*******************************************************************************
+**
+** Function      bta_hl_validate_chan_cfg
+**
+** Description    This function validates the L2CAP channel configuration
+**
+** Returns     BOOLEAN - TRUE - validation is successful
+*******************************************************************************/
+BOOLEAN bta_hl_validate_chan_cfg(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx)
+{
+    tBTA_HL_APP_CB *p_acb  = BTA_HL_GET_APP_CB_PTR(app_idx);
+    tBTA_HL_MDL_CB *p_dcb  = BTA_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx);
+    BOOLEAN success = FALSE;
+    UINT8 mdl_cfg_idx = 0;
+    tBTA_HL_L2CAP_CFG_INFO l2cap_cfg;
+    BOOLEAN get_l2cap_result, get_mdl_result;
+
+    get_l2cap_result = bta_hl_get_l2cap_cfg(p_dcb->mdl_handle, &l2cap_cfg);
+    get_mdl_result = bta_hl_find_mdl_cfg_idx(app_idx, mcl_idx, p_dcb->mdl_id, &mdl_cfg_idx);
+
+    if (get_l2cap_result && get_mdl_result)
+    {
+        if ((p_acb->mdl_cfg[mdl_cfg_idx].mtu <= l2cap_cfg.mtu) &&
+            (p_acb->mdl_cfg[mdl_cfg_idx].fcs == l2cap_cfg.fcs) &&
+            (p_acb->mdl_cfg[mdl_cfg_idx].dch_mode == p_dcb->dch_mode))
+        {
+            success = TRUE;
+        }
+    }
+
+
+#if BTA_HL_DEBUG == TRUE
+
+    if (p_dcb->mtu != l2cap_cfg.mtu)
+    {
+        APPL_TRACE_WARNING("MCAP and L2CAP peer mtu size out of sync from MCAP mtu=%d from l2cap mtu=%d",
+                            p_dcb->mtu, l2cap_cfg.mtu);
+    }
+
+    if (!success)
+    {
+        APPL_TRACE_DEBUG("bta_hl_validate_chan_cfg success=%d app_idx=%d mcl_idx=%d mdl_idx=%d",success, app_idx, mcl_idx, mdl_idx);
+        APPL_TRACE_DEBUG("Cur. L2cap cfg mtu=%d fcs=%d dch_mode=%d", l2cap_cfg.mtu, l2cap_cfg.fcs, p_dcb->dch_mode);
+        APPL_TRACE_DEBUG("From saved: L2cap cfg mtu=%d fcs=%d dch_mode=%d", p_acb->mdl_cfg[mdl_cfg_idx].mtu,
+                          p_acb->mdl_cfg[mdl_cfg_idx].fcs , p_acb->mdl_cfg[mdl_cfg_idx].dch_mode);
+    }
+#endif
+
+    return success;
+}
+
+
+/*******************************************************************************
+**
+** Function      bta_hl_is_cong_on
+**
+** Description    This function checks whether the congestion condition is on or not
+**
+** Returns      BOOLEAN - TRUE DCH is congested
+**                        FALSE not congested
+**
+*******************************************************************************/
+BOOLEAN  bta_hl_is_cong_on(UINT8 app_id, BD_ADDR bd_addr, tBTA_HL_MDL_ID mdl_id)
+
+{
+    tBTA_HL_MDL_CB      *p_dcb;
+    UINT8   app_idx = 0, mcl_idx, mdl_idx;
+    BOOLEAN cong_status = TRUE;
+
+    if (bta_hl_find_app_idx(app_id, &app_idx))
+    {
+        if (bta_hl_find_mcl_idx(app_idx, bd_addr, &mcl_idx ))
+        {
+            if (bta_hl_find_mdl_idx(app_idx, mcl_idx, mdl_id, &mdl_idx ))
+            {
+                p_dcb = BTA_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx);
+                cong_status  = p_dcb->cong;
+            }
+        }
+    }
+
+    return cong_status;
+}
+
+/*******************************************************************************
+**
+** Function      bta_hl_check_cch_close
+**
+** Description   This function checks whether there is a pending CCH close request
+**               or not
+**
+** Returns      void
+*******************************************************************************/
+void bta_hl_check_cch_close(UINT8 app_idx, UINT8 mcl_idx, tBTA_HL_DATA *p_data, BOOLEAN check_dch_setup )
+{
+    tBTA_HL_MCL_CB      *p_mcb  = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+    tBTA_HL_MDL_CB      *p_dcb;
+    UINT8               mdl_idx;
+
+#if (BTA_HL_DEBUG == TRUE)
+    APPL_TRACE_DEBUG("bta_hl_check_cch_close cch_close_dch_oper=%d",p_mcb->cch_close_dch_oper );
+#endif
+
+    if (p_mcb->cch_oper == BTA_HL_CCH_OP_LOCAL_CLOSE)
+    {
+        if (check_dch_setup && bta_hl_find_dch_setup_mdl_idx(app_idx, mcl_idx, &mdl_idx))
+        {
+            p_dcb = BTA_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx);
+            if (!p_mcb->rsp_tout)
+            {
+                p_mcb->cch_close_dch_oper = BTA_HL_CCH_CLOSE_OP_DCH_ABORT;
+
+                if (!p_dcb->abort_oper)
+                {
+                    p_dcb->abort_oper |= BTA_HL_ABORT_CCH_CLOSE_MASK;
+                    bta_hl_dch_sm_execute(app_idx, mcl_idx, mdl_idx, BTA_HL_DCH_ABORT_EVT, p_data);
+                }
+            }
+            else
+            {
+                p_mcb->cch_close_dch_oper = BTA_HL_CCH_CLOSE_OP_DCH_CLOSE;
+                bta_hl_dch_sm_execute(app_idx, mcl_idx, mdl_idx, BTA_HL_DCH_CLOSE_CMPL_EVT, p_data);
+            }
+        }
+        else if (bta_hl_find_an_active_mdl_idx(app_idx, mcl_idx,&mdl_idx))
+        {
+            p_mcb->cch_close_dch_oper = BTA_HL_CCH_CLOSE_OP_DCH_CLOSE;
+            bta_hl_dch_sm_execute(app_idx, mcl_idx, mdl_idx, BTA_HL_DCH_CLOSE_EVT, p_data);
+        }
+        else
+        {
+            p_mcb->cch_close_dch_oper = BTA_HL_CCH_CLOSE_OP_DCH_NONE;
+            bta_hl_cch_sm_execute(app_idx, mcl_idx, BTA_HL_CCH_CLOSE_EVT, p_data);
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_hl_clean_app
+**
+** Description      Cleans up the HDP application resources and control block
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hl_clean_app(UINT8 app_idx)
+{
+    tBTA_HL_APP_CB         *p_acb   = BTA_HL_GET_APP_CB_PTR(app_idx);
+    int i, num_act_apps=0;
+
+#if BTA_HL_DEBUG == TRUE
+    APPL_TRACE_DEBUG("bta_hl_clean_app");
+#endif
+    MCA_Deregister((tMCA_HANDLE)p_acb->app_handle);
+
+    if (p_acb->sdp_handle) SDP_DeleteRecord(p_acb->sdp_handle);
+
+    memset((void *) p_acb, 0, sizeof(tBTA_HL_APP_CB));
+
+    /* check any application is still active */
+    for (i=0; i < BTA_HL_NUM_APPS ; i ++)
+    {
+        p_acb = BTA_HL_GET_APP_CB_PTR(i);
+        if (p_acb->in_use) num_act_apps++;
+    }
+
+    if (!num_act_apps)
+    {
+        bta_sys_remove_uuid(UUID_SERVCLASS_HDP_PROFILE);
+    }
+}
+
+/*******************************************************************************
+**
+** Function      bta_hl_check_deregistration
+**
+** Description   This function checks whether there is a pending deregistration
+**               request or not
+**
+** Returns      void
+*******************************************************************************/
+void bta_hl_check_deregistration(UINT8 app_idx, tBTA_HL_DATA *p_data )
+{
+    tBTA_HL_APP_CB      *p_acb  = BTA_HL_GET_APP_CB_PTR(app_idx);
+    tBTA_HL_MCL_CB      *p_mcb;
+    UINT8               mcl_idx;
+    tBTA_HL             evt_data;
+
+#if (BTA_HL_DEBUG == TRUE)
+    APPL_TRACE_DEBUG("bta_hl_check_deregistration");
+#endif
+
+    if (p_acb->deregistering)
+    {
+        if (bta_hl_find_an_in_use_mcl_idx(app_idx, &mcl_idx))
+        {
+            p_mcb  = BTA_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+            if (p_mcb->cch_oper != BTA_HL_CCH_OP_LOCAL_CLOSE)
+            {
+                if (p_mcb->cch_state == BTA_HL_CCH_OPENING_ST)
+                    p_mcb->force_close_local_cch_opening = TRUE;
+                p_mcb->cch_oper = BTA_HL_CCH_OP_LOCAL_CLOSE;
+                APPL_TRACE_DEBUG("p_mcb->force_close_local_cch_opening=%d", p_mcb->force_close_local_cch_opening  );
+                bta_hl_check_cch_close(app_idx,mcl_idx,p_data, TRUE);
+            }
+        }
+        else
+        {
+            /* all cchs are closed */
+            evt_data.dereg_cfm.app_handle = p_acb->app_handle;
+            evt_data.dereg_cfm.app_id = p_data->api_dereg.app_id;
+            evt_data.dereg_cfm.status = BTA_HL_STATUS_OK;
+            p_acb->p_cback(BTA_HL_DEREGISTER_CFM_EVT, (tBTA_HL *) &evt_data );
+            bta_hl_clean_app(app_idx);
+            bta_hl_check_disable(p_data);
+        }
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function      bta_hl_check_disable
+**
+** Description   This function checks whether there is a pending disable
+**               request or not
+**
+** Returns      void
+**
+*******************************************************************************/
+void bta_hl_check_disable(tBTA_HL_DATA *p_data )
+{
+    tBTA_HL_CB          *p_cb= &bta_hl_cb;
+    tBTA_HL_APP_CB      *p_acb;
+    UINT8               app_idx;
+    tBTA_HL_CTRL        evt_data;
+
+#if (BTA_HL_DEBUG == TRUE)
+    APPL_TRACE_DEBUG("bta_hl_check_disable");
+#endif
+
+    if (bta_hl_cb.disabling)
+    {
+        if (bta_hl_find_an_in_use_app_idx(&app_idx))
+        {
+            p_acb  = BTA_HL_GET_APP_CB_PTR(app_idx);
+            if (!p_acb->deregistering)
+            {
+                p_acb->deregistering = TRUE;
+                bta_hl_check_deregistration(app_idx, p_data);
+            }
+        }
+        else
+        {
+            /* all apps are deregistered */
+            bta_sys_deregister(BTA_ID_HL);
+            evt_data.disable_cfm.status = BTA_HL_STATUS_OK;
+            if (p_cb->p_ctrl_cback) p_cb->p_ctrl_cback(BTA_HL_CTRL_DISABLE_CFM_EVT, (tBTA_HL_CTRL *) &evt_data);
+            memset((void *) p_cb, 0, sizeof(tBTA_HL_CB));
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function      bta_hl_build_abort_cfm
+**
+** Description   This function builds the abort confirmation event data
+**
+** Returns      None
+**
+*******************************************************************************/
+void  bta_hl_build_abort_cfm(tBTA_HL *p_evt_data,
+                             tBTA_HL_APP_HANDLE app_handle,
+                             tBTA_HL_MCL_HANDLE mcl_handle,
+                             tBTA_HL_STATUS status)
+{
+    p_evt_data->dch_abort_cfm.status = status;
+    p_evt_data->dch_abort_cfm.mcl_handle = mcl_handle;
+    p_evt_data->dch_abort_cfm.app_handle = app_handle;
+}
+
+/*******************************************************************************
+**
+** Function      bta_hl_build_abort_ind
+**
+** Description   This function builds the abort indication event data
+**
+** Returns      None
+**
+*******************************************************************************/
+void  bta_hl_build_abort_ind(tBTA_HL *p_evt_data,
+                             tBTA_HL_APP_HANDLE app_handle,
+                             tBTA_HL_MCL_HANDLE mcl_handle)
+{
+    p_evt_data->dch_abort_ind.mcl_handle = mcl_handle;
+    p_evt_data->dch_abort_ind.app_handle = app_handle;
+}
+/*******************************************************************************
+**
+** Function      bta_hl_build_close_cfm
+**
+** Description   This function builds the close confirmation event data
+**
+** Returns      None
+**
+*******************************************************************************/
+void  bta_hl_build_dch_close_cfm(tBTA_HL *p_evt_data,
+                                 tBTA_HL_APP_HANDLE app_handle,
+                                 tBTA_HL_MCL_HANDLE mcl_handle,
+                                 tBTA_HL_MDL_HANDLE mdl_handle,
+                                 tBTA_HL_STATUS status)
+{
+    p_evt_data->dch_close_cfm.status = status;
+    p_evt_data->dch_close_cfm.mdl_handle = mdl_handle;
+    p_evt_data->dch_close_cfm.mcl_handle = mcl_handle;
+    p_evt_data->dch_close_cfm.app_handle = app_handle;
+}
+
+/*******************************************************************************
+**
+** Function      bta_hl_build_dch_close_ind
+**
+** Description   This function builds the close indication event data
+**
+** Returns      None
+**
+*******************************************************************************/
+void  bta_hl_build_dch_close_ind(tBTA_HL *p_evt_data,
+                                 tBTA_HL_APP_HANDLE app_handle,
+                                 tBTA_HL_MCL_HANDLE mcl_handle,
+                                 tBTA_HL_MDL_HANDLE mdl_handle,
+                                 BOOLEAN intentional)
+{
+    p_evt_data->dch_close_ind.mdl_handle = mdl_handle;
+    p_evt_data->dch_close_ind.mcl_handle = mcl_handle;
+    p_evt_data->dch_close_ind.app_handle = app_handle;
+    p_evt_data->dch_close_ind.intentional = intentional;
+}
+
+/*******************************************************************************
+**
+** Function      bta_hl_build_send_data_cfm
+**
+** Description   This function builds the send data confirmation event data
+**
+** Returns      None
+**
+*******************************************************************************/
+void  bta_hl_build_send_data_cfm(tBTA_HL *p_evt_data,
+                                 tBTA_HL_APP_HANDLE app_handle,
+                                 tBTA_HL_MCL_HANDLE mcl_handle,
+                                 tBTA_HL_MDL_HANDLE mdl_handle,
+                                 tBTA_HL_STATUS status )
+{
+
+    p_evt_data->dch_send_data_cfm.mdl_handle = mdl_handle;
+    p_evt_data->dch_send_data_cfm.mcl_handle = mcl_handle;
+    p_evt_data->dch_send_data_cfm.app_handle = app_handle;
+    p_evt_data->dch_send_data_cfm.status = status;
+}
+
+/*******************************************************************************
+**
+** Function      bta_hl_build_rcv_data_ind
+**
+** Description   This function builds the received data indication event data
+**
+** Returns      None
+**
+*******************************************************************************/
+void  bta_hl_build_rcv_data_ind(tBTA_HL *p_evt_data,
+                                tBTA_HL_APP_HANDLE app_handle,
+                                tBTA_HL_MCL_HANDLE mcl_handle,
+                                tBTA_HL_MDL_HANDLE mdl_handle)
+{
+    p_evt_data->dch_rcv_data_ind.mdl_handle = mdl_handle;
+    p_evt_data->dch_rcv_data_ind.mcl_handle = mcl_handle;
+    p_evt_data->dch_rcv_data_ind.app_handle = app_handle;
+}
+
+
+/*******************************************************************************
+**
+** Function      bta_hl_build_cch_open_cfm
+**
+** Description   This function builds the CCH open confirmation event data
+**
+** Returns      None
+**
+*******************************************************************************/
+void  bta_hl_build_cch_open_cfm(tBTA_HL *p_evt_data,
+                                UINT8 app_id,
+                                tBTA_HL_APP_HANDLE app_handle,
+                                tBTA_HL_MCL_HANDLE mcl_handle,
+                                BD_ADDR bd_addr,
+                                tBTA_HL_STATUS status )
+{
+    p_evt_data->cch_open_cfm.app_id = app_id;
+    p_evt_data->cch_open_cfm.app_handle = app_handle;
+    p_evt_data->cch_open_cfm.mcl_handle = mcl_handle;
+    bdcpy(p_evt_data->cch_open_cfm.bd_addr, bd_addr);
+    p_evt_data->cch_open_cfm.status = status;
+    APPL_TRACE_DEBUG("bta_hl_build_cch_open_cfm: status=%d",status);
+}
+
+/*******************************************************************************
+**
+** Function      bta_hl_build_cch_open_ind
+**
+** Description   This function builds the CCH open indication event data
+**
+** Returns      None
+**
+*******************************************************************************/
+void  bta_hl_build_cch_open_ind(tBTA_HL *p_evt_data, tBTA_HL_APP_HANDLE app_handle,
+                                tBTA_HL_MCL_HANDLE mcl_handle,
+                                BD_ADDR bd_addr )
+{
+
+    p_evt_data->cch_open_ind.app_handle = app_handle;
+    p_evt_data->cch_open_ind.mcl_handle = mcl_handle;
+    bdcpy(p_evt_data->cch_open_ind.bd_addr, bd_addr);
+}
+
+/*******************************************************************************
+**
+** Function      bta_hl_build_cch_close_cfm
+**
+** Description   This function builds the CCH close confirmation event data
+**
+** Returns      None
+**
+*******************************************************************************/
+void  bta_hl_build_cch_close_cfm(tBTA_HL *p_evt_data,
+                                 tBTA_HL_APP_HANDLE app_handle,
+                                 tBTA_HL_MCL_HANDLE mcl_handle,
+                                 tBTA_HL_STATUS status )
+{
+    p_evt_data->cch_close_cfm.mcl_handle = mcl_handle;
+    p_evt_data->cch_close_cfm.app_handle = app_handle;
+    p_evt_data->cch_close_cfm.status = status;
+}
+
+
+/*******************************************************************************
+**
+** Function      bta_hl_build_cch_close_ind
+**
+** Description   This function builds the CCH colse indication event data
+**
+** Returns      None
+**
+*******************************************************************************/
+void  bta_hl_build_cch_close_ind(tBTA_HL *p_evt_data,
+                                 tBTA_HL_APP_HANDLE app_handle,
+                                 tBTA_HL_MCL_HANDLE mcl_handle,
+                                 BOOLEAN intentional)
+{
+    p_evt_data->cch_close_ind.mcl_handle = mcl_handle;
+    p_evt_data->cch_close_ind.app_handle = app_handle;
+    p_evt_data->cch_close_ind.intentional = intentional;
+}
+
+/*******************************************************************************
+**
+** Function      bta_hl_build_dch_open_cfm
+**
+** Description   This function builds the DCH open confirmation event data
+**
+** Returns      None
+**
+*******************************************************************************/
+void  bta_hl_build_dch_open_cfm(tBTA_HL *p_evt_data,
+                                tBTA_HL_APP_HANDLE app_handle,
+                                tBTA_HL_MCL_HANDLE mcl_handle,
+                                tBTA_HL_MDL_HANDLE mdl_handle,
+                                tBTA_HL_MDEP_ID local_mdep_id,
+                                tBTA_HL_MDL_ID mdl_id,
+                                tBTA_HL_DCH_MODE dch_mode,
+                                BOOLEAN first_reliable,
+                                UINT16 mtu,
+                                tBTA_HL_STATUS status)
+
+{
+    p_evt_data->dch_open_cfm.mdl_handle = mdl_handle;
+    p_evt_data->dch_open_cfm.mcl_handle = mcl_handle;
+    p_evt_data->dch_open_cfm.app_handle = app_handle;
+    p_evt_data->dch_open_cfm.local_mdep_id = local_mdep_id;
+    p_evt_data->dch_open_cfm.mdl_id = mdl_id;
+    p_evt_data->dch_open_cfm.dch_mode = dch_mode;
+    p_evt_data->dch_open_cfm.first_reliable = first_reliable;
+    p_evt_data->dch_open_cfm.mtu = mtu;
+    p_evt_data->dch_open_cfm.status = status;
+}
+
+
+/*******************************************************************************
+**
+** Function      bta_hl_build_sdp_query_cfm
+**
+** Description   This function builds the SDP query indication event data
+**
+** Returns      None
+**
+*******************************************************************************/
+void  bta_hl_build_sdp_query_cfm(tBTA_HL *p_evt_data,
+                                 UINT8 app_id,
+                                 tBTA_HL_APP_HANDLE app_handle,
+                                 BD_ADDR bd_addr,
+                                 tBTA_HL_SDP *p_sdp,
+                                 tBTA_HL_STATUS status)
+
+{
+    APPL_TRACE_DEBUG("bta_hl_build_sdp_query_cfm: app_id = %d, app_handle=%d",
+                        app_id,app_handle);
+    p_evt_data->sdp_query_cfm.app_id = app_id;
+    p_evt_data->sdp_query_cfm.app_handle = app_handle;
+    bdcpy(p_evt_data->sdp_query_cfm.bd_addr, bd_addr);
+    p_evt_data->sdp_query_cfm.p_sdp = p_sdp;
+    p_evt_data->sdp_query_cfm.status = status;
+}
+
+
+/*******************************************************************************
+**
+** Function      bta_hl_build_delete_mdl_cfm
+**
+** Description   This function builds the delete MDL confirmation event data
+**
+** Returns      None
+**
+*******************************************************************************/
+void  bta_hl_build_delete_mdl_cfm(tBTA_HL *p_evt_data,
+                                  tBTA_HL_APP_HANDLE app_handle,
+                                  tBTA_HL_MCL_HANDLE mcl_handle,
+                                  tBTA_HL_MDL_ID mdl_id,
+                                  tBTA_HL_STATUS status)
+
+{
+    p_evt_data->delete_mdl_cfm.mcl_handle = mcl_handle;
+    p_evt_data->delete_mdl_cfm.app_handle = app_handle;
+    p_evt_data->delete_mdl_cfm.mdl_id = mdl_id;
+    p_evt_data->delete_mdl_cfm.status = status;
+}
+
+/*******************************************************************************
+**
+** Function      bta_hl_build_echo_test_cfm
+**
+** Description   This function builds the echo test confirmation event data
+**
+** Returns      None
+**
+*******************************************************************************/
+void  bta_hl_build_echo_test_cfm(tBTA_HL *p_evt_data,
+                                 tBTA_HL_APP_HANDLE app_handle,
+                                 tBTA_HL_MCL_HANDLE mcl_handle,
+                                 tBTA_HL_STATUS status )
+{
+    p_evt_data->echo_test_cfm.mcl_handle = mcl_handle;
+    p_evt_data->echo_test_cfm.app_handle = app_handle;
+    p_evt_data->echo_test_cfm.status = status;
+}
+
+
+/*****************************************************************************
+**  Debug Functions
+*****************************************************************************/
+#if (BTA_HL_DEBUG == TRUE)
+
+/*******************************************************************************
+**
+** Function         bta_hl_status_code
+**
+** Description      get the status string pointer
+**
+** Returns          char * - status string pointer
+**
+*******************************************************************************/
+char *bta_hl_status_code(tBTA_HL_STATUS status)
+{
+    switch (status)
+    {
+        case BTA_HL_STATUS_OK:
+            return "BTA_HL_STATUS_OK";
+        case BTA_HL_STATUS_FAIL:
+            return "BTA_HL_STATUS_FAIL";
+        case BTA_HL_STATUS_ABORTED:
+            return "BTA_HL_STATUS_ABORTED";
+        case BTA_HL_STATUS_NO_RESOURCE:
+            return "BTA_HL_STATUS_NO_RESOURCE";
+        case BTA_HL_STATUS_LAST_ITEM:
+            return "BTA_HL_STATUS_LAST_ITEM";
+        case BTA_HL_STATUS_DUPLICATE_APP_ID:
+            return "BTA_HL_STATUS_DUPLICATE_APP_ID";
+        case BTA_HL_STATUS_INVALID_APP_HANDLE:
+            return "BTA_HL_STATUS_INVALID_APP_HANDLE";
+        case BTA_HL_STATUS_INVALID_MCL_HANDLE:
+            return "BTA_HL_STATUS_INVALID_MCL_HANDLE";
+        case BTA_HL_STATUS_MCAP_REG_FAIL:
+            return "BTA_HL_STATUS_MCAP_REG_FAIL";
+        case BTA_HL_STATUS_MDEP_CO_FAIL:
+            return "BTA_HL_STATUS_MDEP_CO_FAIL";
+        case BTA_HL_STATUS_ECHO_CO_FAIL:
+            return "BTA_HL_STATUS_ECHO_CO_FAIL";
+        case BTA_HL_STATUS_MDL_CFG_CO_FAIL:
+            return "BTA_HL_STATUS_MDL_CFG_CO_FAIL";
+        case BTA_HL_STATUS_SDP_NO_RESOURCE:
+            return "BTA_HL_STATUS_SDP_NO_RESOURCE";
+        case BTA_HL_STATUS_SDP_FAIL:
+            return "BTA_HL_STATUS_SDP_FAIL";
+        case BTA_HL_STATUS_NO_CCH:
+            return "BTA_HL_STATUS_NO_CCH";
+        case BTA_HL_STATUS_NO_MCL:
+            return "BTA_HL_STATUS_NO_MCL";
+
+        case BTA_HL_STATUS_NO_FIRST_RELIABLE:
+            return "BTA_HL_STATUS_NO_FIRST_RELIABLE";
+        case BTA_HL_STATUS_INVALID_DCH_CFG:
+            return "BTA_HL_STATUS_INVALID_DCH_CFG";
+        case BTA_HL_STATUS_INVALID_BD_ADDR:
+            return "BTA_HL_STATUS_INVALID_BD_ADDR";
+        case BTA_HL_STATUS_INVALID_RECONNECT_CFG:
+            return "BTA_HL_STATUS_INVALID_RECONNECT_CFG";
+        case BTA_HL_STATUS_ECHO_TEST_BUSY:
+            return "BTA_HL_STATUS_ECHO_TEST_BUSY";
+        case BTA_HL_STATUS_INVALID_LOCAL_MDEP_ID:
+            return "BTA_HL_STATUS_INVALID_LOCAL_MDEP_ID";
+        case BTA_HL_STATUS_INVALID_MDL_ID:
+            return "BTA_HL_STATUS_INVALID_MDL_ID";
+        case BTA_HL_STATUS_NO_MDL_ID_FOUND:
+            return "BTA_HL_STATUS_NO_MDL_ID_FOUND";
+        case BTA_HL_STATUS_DCH_BUSY:
+            return "BTA_HL_STATUS_DCH_BUSY";
+        default:
+            return "Unknown status code";
+    }
+}
+/*******************************************************************************
+**
+** Function         bta_hl_evt_code
+**
+** Description      Maps HL event code to the corresponding event string
+**
+** Returns          string pointer for the associated event name
+**
+*******************************************************************************/
+char *bta_hl_evt_code(tBTA_HL_INT_EVT evt_code)
+{
+    switch (evt_code)
+    {
+        case BTA_HL_CCH_OPEN_EVT:
+            return "BTA_HL_CCH_OPEN_EVT";
+        case BTA_HL_CCH_SDP_OK_EVT:
+            return "BTA_HL_CCH_SDP_OK_EVT";
+        case BTA_HL_CCH_SDP_FAIL_EVT:
+            return "BTA_HL_CCH_SDP_FAIL_EVT";
+        case BTA_HL_MCA_CONNECT_IND_EVT:
+            return "BTA_HL_MCA_CONNECT_IND_EVT";
+        case BTA_HL_MCA_DISCONNECT_IND_EVT:
+            return "BTA_HL_MCA_DISCONNECT_IND_EVT";
+
+        case BTA_HL_CCH_CLOSE_EVT:
+            return "BTA_HL_CCH_CLOSE_EVT";
+        case BTA_HL_CCH_CLOSE_CMPL_EVT:
+            return "BTA_HL_CCH_CLOSE_CMPL_EVT";
+        case BTA_HL_DCH_OPEN_EVT:
+            return "BTA_HL_DCH_OPEN_EVT";
+        case BTA_HL_MCA_CREATE_IND_EVT:
+            return "BTA_HL_MCA_CREATE_IND_EVT";
+        case BTA_HL_MCA_CREATE_CFM_EVT:
+            return "BTA_HL_MCA_CREATE_CFM_EVT";
+        case BTA_HL_MCA_OPEN_IND_EVT:
+            return "BTA_HL_MCA_OPEN_IND_EVT";
+        case BTA_HL_MCA_OPEN_CFM_EVT:
+            return "BTA_HL_MCA_OPEN_CFM_EVT";
+        case BTA_HL_DCH_CLOSE_EVT:
+            return "BTA_HL_DCH_CLOSE_EVT";
+        case BTA_HL_MCA_CLOSE_IND_EVT:
+            return "BTA_HL_MCA_CLOSE_IND_EVT";
+        case BTA_HL_MCA_CLOSE_CFM_EVT:
+            return "BTA_HL_MCA_CLOSE_CFM_EVT";
+        case BTA_HL_API_SEND_DATA_EVT:
+            return "BTA_HL_API_SEND_DATA_EVT";
+        case BTA_HL_MCA_RCV_DATA_EVT:
+            return "BTA_HL_MCA_RCV_DATA_EVT";
+        case BTA_HL_DCH_CLOSE_CMPL_EVT:
+            return "BTA_HL_DCH_CLOSE_CMPL_EVT";
+
+        case BTA_HL_API_ENABLE_EVT:
+            return "BTA_HL_API_ENABLE_EVT";
+        case BTA_HL_API_DISABLE_EVT:
+            return "BTA_HL_API_DISABLE_EVT";
+        case BTA_HL_API_UPDATE_EVT:
+             return "BTA_HL_API_UPDATE_EVT";
+        case BTA_HL_API_REGISTER_EVT:
+            return "BTA_HL_API_REGISTER_EVT";
+        case BTA_HL_API_DEREGISTER_EVT:
+            return "BTA_HL_API_DEREGISTER_EVT";
+
+        case BTA_HL_API_CCH_OPEN_EVT:
+            return "BTA_HL_API_CCH_OPEN_EVT";
+
+        case BTA_HL_API_CCH_CLOSE_EVT:
+            return "BTA_HL_API_CCH_CLOSE_EVT";
+        case BTA_HL_API_DCH_OPEN_EVT:
+            return "BTA_HL_API_DCH_OPEN_EVT";
+
+        case BTA_HL_API_DCH_RECONNECT_EVT:
+            return "BTA_HL_API_DCH_RECONNECT_EVT";
+        case BTA_HL_API_DCH_CLOSE_EVT:
+            return "BTA_HL_API_DCH_CLOSE_EVT";
+        case BTA_HL_API_DELETE_MDL_EVT:
+            return "BTA_HL_API_DELETE_MDL_EVT";
+        case BTA_HL_API_DCH_ABORT_EVT:
+            return "BTA_HL_API_DCH_ABORT_EVT";
+
+        case BTA_HL_DCH_RECONNECT_EVT:
+            return "BTA_HL_DCH_RECONNECT_EVT";
+        case BTA_HL_DCH_SDP_INIT_EVT:
+            return "BTA_HL_DCH_SDP_INIT_EVT";
+        case BTA_HL_DCH_SDP_FAIL_EVT:
+            return "BTA_HL_DCH_SDP_FAIL_EVT";
+        case BTA_HL_API_DCH_ECHO_TEST_EVT:
+            return "BTA_HL_API_DCH_ECHO_TEST_EVT";
+        case BTA_HL_DCH_CLOSE_ECHO_TEST_EVT:
+            return "BTA_HL_DCH_CLOSE_ECHO_TEST_EVT";
+        case BTA_HL_MCA_RECONNECT_IND_EVT:
+            return "BTA_HL_MCA_RECONNECT_IND_EVT";
+        case BTA_HL_MCA_RECONNECT_CFM_EVT:
+            return "BTA_HL_MCA_RECONNECT_CFM_EVT";
+        case BTA_HL_API_DCH_CREATE_RSP_EVT:
+            return "BTA_HL_API_DCH_CREATE_RSP_EVT";
+        case BTA_HL_DCH_ABORT_EVT:
+            return "BTA_HL_DCH_ABORT_EVT";
+        case BTA_HL_MCA_ABORT_IND_EVT:
+            return "BTA_HL_MCA_ABORT_IND_EVT";
+        case BTA_HL_MCA_ABORT_CFM_EVT:
+            return "BTA_HL_MCA_ABORT_CFM_EVT";
+        case BTA_HL_MCA_DELETE_IND_EVT:
+            return "BTA_HL_MCA_DELETE_IND_EVT";
+        case BTA_HL_MCA_DELETE_CFM_EVT:
+            return "BTA_HL_MCA_DELETE_CFM_EVT";
+        case BTA_HL_MCA_CONG_CHG_EVT:
+            return "BTA_HL_MCA_CONG_CHG_EVT";
+        case BTA_HL_CI_GET_TX_DATA_EVT:
+            return "BTA_HL_CI_GET_TX_DATA_EVT";
+        case BTA_HL_CI_PUT_RX_DATA_EVT:
+            return "BTA_HL_CI_PUT_RX_DATA_EVT";
+        case BTA_HL_CI_GET_ECHO_DATA_EVT:
+            return "BTA_HL_CI_GET_ECHO_DATA_EVT";
+        case BTA_HL_DCH_ECHO_TEST_EVT:
+            return "BTA_HL_DCH_ECHO_TEST_EVT";
+        case BTA_HL_CI_PUT_ECHO_DATA_EVT:
+            return "BTA_HL_CI_PUT_ECHO_DATA_EVT";
+        case BTA_HL_API_SDP_QUERY_EVT:
+            return "BTA_HL_API_SDP_QUERY_EVT";
+        case BTA_HL_SDP_QUERY_OK_EVT:
+            return "BTA_HL_SDP_QUERY_OK_EVT";
+        case BTA_HL_SDP_QUERY_FAIL_EVT:
+            return "BTA_HL_SDP_QUERY_FAIL_EVT";
+        case BTA_HL_MCA_RSP_TOUT_IND_EVT:
+            return "BTA_HL_MCA_RSP_TOUT_IND_EVT";
+
+        default:
+            return "Unknown HL event code";
+    }
+}
+
+#endif  /* Debug Functions */
+#endif // HL_INCLUDED
+
+
+
+
+
+
+
+
diff --git a/rtkbt/code/bt/bta/include/bta_ag_api.h b/rtkbt/code/bt/bta/include/bta_ag_api.h
new file mode 100755
index 0000000..ff85c9b
--- /dev/null
+++ b/rtkbt/code/bt/bta/include/bta_ag_api.h
@@ -0,0 +1,528 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the public interface file for the audio gateway (AG) subsystem
+ *  of BTA, Broadcom's Bluetooth application layer for mobile phones.
+ *
+ ******************************************************************************/
+#ifndef BTA_AG_API_H
+#define BTA_AG_API_H
+
+#include "bta_api.h"
+
+/*****************************************************************************
+**  Constants and data types
+*****************************************************************************/
+
+/* AG feature masks */
+#define BTA_AG_FEAT_3WAY    0x00000001   /* Three-way calling */
+#define BTA_AG_FEAT_ECNR    0x00000002   /* Echo cancellation and/or noise reduction */
+#define BTA_AG_FEAT_VREC    0x00000004   /* Voice recognition */
+#define BTA_AG_FEAT_INBAND  0x00000008   /* In-band ring tone */
+#define BTA_AG_FEAT_VTAG    0x00000010   /* Attach a phone number to a voice tag */
+#define BTA_AG_FEAT_REJECT  0x00000020   /* Ability to reject incoming call */
+#define BTA_AG_FEAT_ECS     0x00000040   /* Enhanced Call Status */
+#define BTA_AG_FEAT_ECC     0x00000080   /* Enhanced Call Control */
+#define BTA_AG_FEAT_EXTERR  0x00000100   /* Extended error codes */
+#define BTA_AG_FEAT_CODEC   0x00000200   /* Codec Negotiation */
+#define BTA_AG_FEAT_VOIP    0x00000400   /* VoIP call */
+/* Proprietary features: using 31 ~ 16 bits */
+#define BTA_AG_FEAT_BTRH    0x00010000   /* CCAP incoming call hold */
+#define BTA_AG_FEAT_UNAT    0x00020000   /* Pass unknown AT commands to application */
+#define BTA_AG_FEAT_NOSCO   0x00040000   /* No SCO control performed by BTA AG */
+#define BTA_AG_FEAT_NO_ESCO 0x00080000   /* Do not allow or use eSCO */
+
+typedef UINT32 tBTA_AG_FEAT;
+
+/* AG parse mode */
+#define BTA_AG_PARSE            0 /* Perform AT command parsing in AG */
+#define BTA_AG_PASS_THROUGH     1 /* Pass data directly to phone’s AT command interpreter */
+
+typedef UINT8 tBTA_AG_PARSE_MODE;
+
+/* AG open status */
+#define BTA_AG_SUCCESS          0 /* Connection successfully opened */
+#define BTA_AG_FAIL_SDP         1 /* Open failed due to SDP */
+#define BTA_AG_FAIL_RFCOMM      2 /* Open failed due to RFCOMM */
+#define BTA_AG_FAIL_RESOURCES   3 /* out of resources failure  */
+
+typedef UINT8 tBTA_AG_STATUS;
+
+/* handle values used with BTA_AgResult */
+#define BTA_AG_HANDLE_NONE      0
+#define BTA_AG_HANDLE_ALL       0xFFFF
+/* It is safe to use the same value as BTA_AG_HANDLE_ALL
+ * HANDLE_ALL is used for delivering indication
+ * SCO_NO_CHANGE is used for changing sco behavior
+ * They donot interfere with each other
+ */
+#define BTA_AG_HANDLE_SCO_NO_CHANGE 0xFFFF
+
+/* AG result codes used with BTA_AgResult */
+#define BTA_AG_SPK_RES              0   /* Update speaker volume */
+#define BTA_AG_MIC_RES              1   /* Update microphone volume */
+#define BTA_AG_INBAND_RING_RES      2   /* Update inband ring state */
+#define BTA_AG_CIND_RES             3   /* Send indicator response for AT+CIND */
+#define BTA_AG_BINP_RES             4   /* Send phone number for voice tag for AT+BINP */
+#define BTA_AG_IND_RES              5   /* Update an indicator value */
+#define BTA_AG_BVRA_RES             6   /* Update voice recognition state */
+#define BTA_AG_CNUM_RES             7   /* Send subscriber number response for AT+CNUM */
+#define BTA_AG_BTRH_RES             8   /* Send CCAP incoming call hold */
+#define BTA_AG_CLCC_RES             9   /* Query list of calls */
+#define BTA_AG_COPS_RES             10  /* Read network operator */
+#define BTA_AG_IN_CALL_RES          11  /* Indicate incoming phone call */
+#define BTA_AG_IN_CALL_CONN_RES     12  /* Incoming phone call connected */
+#define BTA_AG_CALL_WAIT_RES        13  /* Call waiting notification */
+#define BTA_AG_OUT_CALL_ORIG_RES    14  /* Outgoing phone call origination */
+#define BTA_AG_OUT_CALL_ALERT_RES   15  /* Outgoing phone call alerting remote party */
+#define BTA_AG_OUT_CALL_CONN_RES    16  /* Outgoing phone call connected */
+#define BTA_AG_CALL_CANCEL_RES      17  /* Incoming/outgoing 3-way canceled before connected */
+#define BTA_AG_END_CALL_RES         18  /* End call */
+#define BTA_AG_IN_CALL_HELD_RES     19  /* Incoming call held */
+#define BTA_AG_UNAT_RES             20  /* Response to unknown AT command event */
+#define BTA_AG_MULTI_CALL_RES       21  /* SLC at three way call */
+
+typedef UINT8 tBTA_AG_RES;
+
+/* HFP peer features */
+#define BTA_AG_PEER_FEAT_ECNR       0x0001  /* Echo cancellation and/or noise reduction */
+#define BTA_AG_PEER_FEAT_3WAY       0x0002  /* Call waiting and three-way calling */
+#define BTA_AG_PEER_FEAT_CLI        0x0004  /* Caller ID presentation capability */
+#define BTA_AG_PEER_FEAT_VREC       0x0008  /* Voice recognition activation */
+#define BTA_AG_PEER_FEAT_VOL        0x0010  /* Remote volume control */
+#define BTA_AG_PEER_FEAT_ECS        0x0020  /* Enhanced Call Status */
+#define BTA_AG_PEER_FEAT_ECC        0x0040  /* Enhanced Call Control */
+#define BTA_AG_PEER_FEAT_CODEC      0x0080  /* Codec Negotiation */
+#define BTA_AG_PEER_FEAT_VOIP       0x0100  /* VoIP call */
+
+typedef UINT16 tBTA_AG_PEER_FEAT;
+
+/* HFP peer supported codec masks */
+// TODO(google) This should use common definitions
+// in hci/include/hci_audio.h
+#define BTA_AG_CODEC_NONE           BTM_SCO_CODEC_NONE
+#define BTA_AG_CODEC_CVSD           BTM_SCO_CODEC_CVSD      /* CVSD */
+#define BTA_AG_CODEC_MSBC           BTM_SCO_CODEC_MSBC      /* mSBC */
+typedef UINT16 tBTA_AG_PEER_CODEC;
+
+/* HFP errcode - Set when BTA_AG_OK_ERROR is returned in 'ok_flag' */
+#define BTA_AG_ERR_PHONE_FAILURE    0       /* Phone Failure */
+#define BTA_AG_ERR_NO_CONN_PHONE    1       /* No connection to phone */
+#define BTA_AG_ERR_OP_NOT_ALLOWED   3       /* Operation not allowed */
+#define BTA_AG_ERR_OP_NOT_SUPPORTED 4       /* Operation not supported */
+#define BTA_AG_ERR_PHSIM_PIN_REQ    5       /* PH-SIM PIN required */
+#define BTA_AG_ERR_SIM_NOT_INSERTED 10      /* SIM not inserted */
+#define BTA_AG_ERR_SIM_PIN_REQ      11      /* SIM PIN required */
+#define BTA_AG_ERR_SIM_PUK_REQ      12      /* SIM PUK required */
+#define BTA_AG_ERR_SIM_FAILURE      13      /* SIM failure */
+#define BTA_AG_ERR_SIM_BUSY         14      /* SIM busy */
+#define BTA_AG_ERR_INCORRECT_PWD    16      /* Incorrect password */
+#define BTA_AG_ERR_SIM_PIN2_REQ     17      /* SIM PIN2 required */
+#define BTA_AG_ERR_SIM_PUK2_REQ     18      /* SIM PUK2 required */
+#define BTA_AG_ERR_MEMORY_FULL      20      /* Memory full */
+#define BTA_AG_ERR_INVALID_INDEX    21      /* Invalid index */
+#define BTA_AG_ERR_MEMORY_FAILURE   23      /* Memory failure */
+#define BTA_AG_ERR_TEXT_TOO_LONG    24      /* Text string too long */
+#define BTA_AG_ERR_INV_CHAR_IN_TSTR 25      /* Invalid characters in text string */
+#define BTA_AG_ERR_DSTR_TOO_LONG    26      /* Dial string too long */
+#define BTA_AG_ERR_INV_CHAR_IN_DSTR 27      /* Invalid characters in dial string */
+#define BTA_AG_ERR_NO_NETWORK_SERV  30      /* No network service */
+#define BTA_AG_ERR_NETWORK_TIME_OUT 31      /* Network timeout */
+#define BTA_AG_ERR_NO_NET_EMG_ONLY  32      /* Network not allowed - emergency service only */
+#define BTA_AG_ERR_VOIP_CS_CALLS    33      /* AG cannot create simultaneous VoIP and CS calls */
+#define BTA_AG_ERR_NOT_FOR_VOIP     34      /* Not supported on this call type(VoIP) */
+#define BTA_AG_ERR_SIP_RESP_CODE    35      /* SIP 3 digit response code */
+
+#if 0   /* Not Used in Bluetooth HFP 1.5 Specification */
+#define BTA_AG_ERR_PHADAP_LNK_RES   2       /* Phone-adapter link reserved */
+#define BTA_AG_ERR_PHFSIM_PIN_REQ   6       /* PH-FSIM PIN required */
+#define BTA_AG_ERR_PHFSIM_PUK_REQ   7       /* PH-FSIM PUK required */
+#define BTA_AG_ERR_SIM_WRONG        15      /* SIM wrong */
+#define BTA_AG_ERR_NOT_FOUND        22      /* Not found */
+#define BTA_AG_ERR_NETWORK_TIMEOUT  31      /* Network timeout */
+#define BTA_AG_ERR_NET_PIN_REQ      40      /* Network personalization PIN required */
+#define BTA_AG_ERR_NET_PUK_REQ      41      /* Network personalization PUK required */
+#define BTA_AG_ERR_SUBSET_PIN_REQ   42      /* Network subset personalization PIN required */
+#define BTA_AG_ERR_SUBSET_PUK_REQ   43      /* Network subset personalization PUK required */
+#define BTA_AG_ERR_SERVPRO_PIN_REQ  44      /* Service provider personalization PIN required */
+#define BTA_AG_ERR_SERVPRO_PUK_REQ  45      /* Service provider personalization PUK required */
+#define BTA_AG_ERR_CORP_PIN_REQ     46      /* Corporate personalization PIN required */
+#define BTA_AG_ERR_CORP_PUK_REQ     47      /* Corporate personalization PUK required */
+#define BTA_AG_ERR_UNKNOWN          100    /* Unknown error */
+/* GPRS-related errors */
+#define BTA_AG_ERR_ILL_MS           103    /* Illegal MS (#3) */
+#define BTA_AG_ERR_ILL_ME           106    /* Illegal ME (#6) */
+#define BTA_AG_ERR_GPRS_NOT_ALLOWED 107    /* GPRS services not allowed (#7) */
+#define BTA_AG_ERR_PLMN_NOT_ALLOWED 111    /* PLMN services not allowed (#11) */
+#define BTA_AG_ERR_LOC_NOT_ALLOWED  112    /* Location area not allowed (#12) */
+#define BTA_AG_ERR_ROAM_NOT_ALLOWED 113    /* Roaming not allowed in this location area (#13) */
+/* Errors related to a failure to Activate a Context */
+#define BTA_AG_ERR_OPT_NOT_SUPP     132    /* Service option not supported (#32) */
+#define BTA_AG_ERR_OPT_NOT_SUBSCR   133    /* Requested service option not subscribed (#33) */
+#define BTA_AG_ERR_OPT_OUT_OF_ORDER 134    /* Service option temporarily out of order (#34) */
+#define BTA_AG_ERR_PDP_AUTH_FAILURE 149    /* PDP authentication failure */
+/* Other GPRS errors */
+#define BTA_AG_ERR_INV_MOBILE_CLASS 150    /* Invalid mobile class */
+#define BTA_AG_ERR_UNSPEC_GPRS_ERR  148    /* Unspecified GPRS error */
+#endif  /* Unused error codes */
+
+
+/* HFP result data 'ok_flag' */
+#define BTA_AG_OK_CONTINUE          0       /* Send out response (more responses coming) */
+#define BTA_AG_OK_DONE              1       /* Send out response followed by OK (finished) */
+#define BTA_AG_OK_ERROR             2       /* Error response */
+
+/* BTRH values */
+#define BTA_AG_BTRH_SET_HOLD        0       /* Put incoming call on hold */
+#define BTA_AG_BTRH_SET_ACC         1       /* Accept incoming call on hold */
+#define BTA_AG_BTRH_SET_REJ         2       /* Reject incoming call on hold */
+#define BTA_AG_BTRH_READ            3       /* Read the current value */
+#define BTA_AG_BTRH_NO_RESP         4       /* Not in RH States (reply to read) */
+
+/* ASCII character string of arguments to the AT command or result */
+#ifndef BTA_AG_AT_MAX_LEN
+#define BTA_AG_AT_MAX_LEN           256
+#endif
+
+/* data associated with BTA_AG_IND_RES */
+typedef struct
+{
+    UINT16          id;
+    UINT16          value;
+} tBTA_AG_IND;
+
+/* data type for BTA_AgResult() */
+typedef struct
+{
+    char            str[BTA_AG_AT_MAX_LEN+1];
+    tBTA_AG_IND     ind;
+    UINT16          num;
+    UINT16          audio_handle;
+    UINT16          errcode;        /* Valid only if 'ok_flag' is set to BTA_AG_OK_ERROR */
+    UINT8           ok_flag;        /* Indicates if response is finished, and if error occurred */
+    BOOLEAN         state;
+} tBTA_AG_RES_DATA;
+
+/* AG callback events */
+#define BTA_AG_ENABLE_EVT       0  /* AG enabled */
+#define BTA_AG_REGISTER_EVT     1  /* AG registered */
+#define BTA_AG_OPEN_EVT         2  /* AG connection open */
+#define BTA_AG_CLOSE_EVT        3  /* AG connection closed */
+#define BTA_AG_CONN_EVT         4  /* Service level connection opened */
+#define BTA_AG_AUDIO_OPEN_EVT   5  /* Audio connection open */
+#define BTA_AG_AUDIO_CLOSE_EVT  6  /* Audio connection closed */
+#define BTA_AG_SPK_EVT          7  /* Speaker volume changed */
+#define BTA_AG_MIC_EVT          8  /* Microphone volume changed */
+#define BTA_AG_AT_CKPD_EVT      9  /* CKPD from the HS */
+#define BTA_AG_DISABLE_EVT      30 /* AG disabled       */
+#if (BTM_WBS_INCLUDED == TRUE )
+#define BTA_AG_WBS_EVT          31 /* SCO codec info */
+#endif
+/* Values below are for HFP only */
+#define BTA_AG_AT_A_EVT         10 /* Answer a call */
+#define BTA_AG_AT_D_EVT         11 /* Place a call using number or memory dial */
+#define BTA_AG_AT_CHLD_EVT      12 /* Call hold */
+#define BTA_AG_AT_CHUP_EVT      13 /* Hang up a call */
+#define BTA_AG_AT_CIND_EVT      14 /* Read indicator settings */
+#define BTA_AG_AT_VTS_EVT       15 /* Transmit DTMF tone */
+#define BTA_AG_AT_BINP_EVT      16 /* Retrieve number from voice tag */
+#define BTA_AG_AT_BLDN_EVT      17 /* Place call to last dialed number */
+#define BTA_AG_AT_BVRA_EVT      18 /* Enable/disable voice recognition */
+#define BTA_AG_AT_NREC_EVT      19 /* Disable echo canceling */
+#define BTA_AG_AT_CNUM_EVT      20 /* Retrieve subscriber number */
+#define BTA_AG_AT_BTRH_EVT      21 /* CCAP-style incoming call hold */
+#define BTA_AG_AT_CLCC_EVT      22 /* Query list of current calls */
+#define BTA_AG_AT_COPS_EVT      23 /* Query list of current calls */
+#define BTA_AG_AT_UNAT_EVT      24 /* Unknown AT command */
+#define BTA_AG_AT_CBC_EVT       25 /* Battery Level report from HF */
+#define BTA_AG_AT_BAC_EVT       26 /* avablable codec */
+#define BTA_AG_AT_BCS_EVT       27 /* Codec select */
+
+typedef UINT8 tBTA_AG_EVT;
+
+/* data associated with most non-AT events */
+typedef struct
+{
+    UINT16              handle;
+    UINT8               app_id;
+    tBTA_AG_STATUS      status;
+} tBTA_AG_HDR;
+
+/* data associated with BTA_AG_REGISTER_EVT */
+typedef struct
+{
+    tBTA_AG_HDR         hdr;
+    tBTA_AG_STATUS      status;
+} tBTA_AG_REGISTER;
+
+/* data associated with BTA_AG_OPEN_EVT */
+typedef struct
+{
+    tBTA_AG_HDR         hdr;
+    BD_ADDR             bd_addr;
+    tBTA_SERVICE_ID     service_id;
+    tBTA_AG_STATUS      status;
+} tBTA_AG_OPEN;
+
+/* data associated with BTA_AG_CLOSE_EVT */
+typedef struct
+{
+    tBTA_AG_HDR         hdr;
+    BD_ADDR             bd_addr;
+} tBTA_AG_CLOSE;
+
+/* data associated with BTA_AG_CONN_EVT */
+typedef struct
+{
+    tBTA_AG_HDR         hdr;
+    tBTA_AG_PEER_FEAT   peer_feat;
+    BD_ADDR             bd_addr;
+    tBTA_AG_PEER_CODEC  peer_codec;
+} tBTA_AG_CONN;
+
+/* data associated with AT command event */
+typedef struct
+{
+    tBTA_AG_HDR         hdr;
+    BD_ADDR             bd_addr;
+    char                str[BTA_AG_AT_MAX_LEN+1];
+    UINT16              num;
+    UINT8               idx;    /* call number used by CLCC and CHLD */
+} tBTA_AG_VAL;
+
+/* union of data associated with AG callback */
+typedef union
+{
+    tBTA_AG_HDR         hdr;
+    tBTA_AG_REGISTER    reg;
+    tBTA_AG_OPEN        open;
+    tBTA_AG_CLOSE       close;
+    tBTA_AG_CONN        conn;
+    tBTA_AG_VAL         val;
+} tBTA_AG;
+
+/* AG callback */
+typedef void (tBTA_AG_CBACK)(tBTA_AG_EVT event, tBTA_AG *p_data);
+
+/* indicator constants HFP 1.1 and later */
+#define BTA_AG_IND_CALL             1   /* position of call indicator */
+#define BTA_AG_IND_CALLSETUP        2   /* position of callsetup indicator */
+#define BTA_AG_IND_SERVICE          3   /* position of service indicator */
+
+/* indicator constants HFP 1.5 and later */
+#define BTA_AG_IND_SIGNAL           4   /* position of signal strength indicator */
+#define BTA_AG_IND_ROAM             5   /* position of roaming indicator */
+#define BTA_AG_IND_BATTCHG          6   /* position of battery charge indicator */
+#define BTA_AG_IND_CALLHELD         7   /* position of callheld indicator */
+#define BTA_AG_IND_BEARER           8   /* position of bearer indicator */
+
+/* call indicator values */
+#define BTA_AG_CALL_INACTIVE        0   /* Phone call inactive */
+#define BTA_AG_CALL_ACTIVE          1   /* Phone call active */
+
+/* callsetup indicator values */
+#define BTA_AG_CALLSETUP_NONE       0   /* Not currently in call set up */
+#define BTA_AG_CALLSETUP_INCOMING   1   /* Incoming call process ongoing */
+#define BTA_AG_CALLSETUP_OUTGOING   2   /* Outgoing call set up is ongoing */
+#define BTA_AG_CALLSETUP_ALERTING   3   /* Remote party being alerted in an outgoing call */
+
+/* service indicator values */
+#define BTA_AG_SERVICE_NONE         0   /* Neither CS nor VoIP service is available     */
+#define BTA_AG_SERVICE_CS           1   /* Only CS service is available                 */
+#define BTA_AG_SERVICE_VOIP         2   /* Only VoIP service is available               */
+#define BTA_AG_SERVICE_CS_VOIP      3   /* Both CS and VoIP services available          */
+
+/* callheld indicator values */
+#define BTA_AG_CALLHELD_INACTIVE    0   /* No held calls */
+#define BTA_AG_CALLHELD_ACTIVE      1   /* Call held and call active */
+#define BTA_AG_CALLHELD_NOACTIVE    2   /* Call held and no call active */
+
+/* signal strength indicator values */
+#define BTA_AG_ROAMING_INACTIVE     0   /* Phone call inactive */
+#define BTA_AG_ROAMING_ACTIVE       1   /* Phone call active */
+
+/* bearer indicator values */
+#define BTA_AG_BEARER_WLAN          0   /* WLAN         */
+#define BTA_AG_BEARER_BLUETOOTH     1   /* Bluetooth    */
+#define BTA_AG_BEARER_WIRED         2   /* Wired        */
+#define BTA_AG_BEARER_2G3G          3   /* 2G 3G        */
+#define BTA_AG_BEARER_WIMAX         4   /* WIMAX        */
+#define BTA_AG_BEARER_RES1          5   /* Reserved     */
+#define BTA_AG_BEARER_RES2          6   /* Reserved     */
+#define BTA_AG_BEARER_RES3          7   /* Reserved     */
+
+/* AG configuration structure */
+typedef struct
+{
+    char         *cind_info;
+    INT32        conn_tout;
+    UINT16       sco_pkt_types;
+    char         *chld_val_ecc;
+    char         *chld_val;
+} tBTA_AG_CFG;
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+/*****************************************************************************
+**  External Function Declarations
+*****************************************************************************/
+
+/*******************************************************************************
+**
+** Function         BTA_AgEnable
+**
+** Description      Enable the audio gateway service. When the enable
+**                  operation is complete the callback function will be
+**                  called with a BTA_AG_ENABLE_EVT. This function must
+**                  be called before other function in the AG API are
+**                  called.
+**
+** Returns          BTA_SUCCESS if OK, BTA_FAILURE otherwise.
+**
+*******************************************************************************/
+tBTA_STATUS BTA_AgEnable(tBTA_AG_PARSE_MODE parse_mode, tBTA_AG_CBACK *p_cback);
+
+/*******************************************************************************
+**
+** Function         BTA_AgDisable
+**
+** Description      Disable the audio gateway service
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AgDisable(void);
+
+/*******************************************************************************
+**
+** Function         BTA_AgRegister
+**
+** Description      Register an Audio Gateway service.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AgRegister(tBTA_SERVICE_MASK services, tBTA_SEC sec_mask,
+                    tBTA_AG_FEAT features, char *p_service_names[], UINT8 app_id);
+
+/*******************************************************************************
+**
+** Function         BTA_AgDeregister
+**
+** Description      Deregister an audio gateway service.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AgDeregister(UINT16 handle);
+
+/*******************************************************************************
+**
+** Function         BTA_AgOpen
+**
+** Description      Opens a connection to a headset or hands-free device.
+**                  When connection is open callback function is called
+**                  with a BTA_AG_OPEN_EVT. Only the data connection is
+**                  opened. The audio connection is not opened.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AgOpen(UINT16 handle, BD_ADDR bd_addr, tBTA_SEC sec_mask, tBTA_SERVICE_MASK services);
+
+/*******************************************************************************
+**
+** Function         BTA_AgClose
+**
+** Description      Close the current connection to a headset or a handsfree
+**                  Any current audio connection will also be closed
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AgClose(UINT16 handle);
+
+/*******************************************************************************
+**
+** Function         BTA_AgAudioOpen
+**
+** Description      Opens an audio connection to the currently connected
+**                  headset or hnadsfree
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AgAudioOpen(UINT16 handle);
+
+/*******************************************************************************
+**
+** Function         BTA_AgAudioClose
+**
+** Description      Close the currently active audio connection to a headset
+**                  or hnadsfree. The data connection remains open
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AgAudioClose(UINT16 handle);
+
+/*******************************************************************************
+**
+** Function         BTA_AgResult
+**
+** Description      Send an AT result code to a headset or hands-free device.
+**                  This function is only used when the AG parse mode is set
+**                  to BTA_AG_PARSE.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AgResult(UINT16 handle, tBTA_AG_RES result, tBTA_AG_RES_DATA *p_data);
+
+/*******************************************************************************
+**
+** Function         BTA_AgSetCodec
+**
+** Description      Specify the codec type to be used for the subsequent
+**                  audio connection.
+**
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AgSetCodec(UINT16 handle, tBTA_AG_PEER_CODEC codec);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* BTA_AG_API_H */
diff --git a/rtkbt/code/bt/bta/include/bta_ag_ci.h b/rtkbt/code/bt/bta/include/bta_ag_ci.h
new file mode 100755
index 0000000..9eb2b25
--- /dev/null
+++ b/rtkbt/code/bt/bta/include/bta_ag_ci.h
@@ -0,0 +1,79 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the interface file for audio gateway call-in functions.
+ *
+ ******************************************************************************/
+#ifndef BTA_AG_CI_H
+#define BTA_AG_CI_H
+
+#include "bta_ag_api.h"
+
+/*****************************************************************************
+**  Function Declarations
+*****************************************************************************/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+/*******************************************************************************
+**
+** Function         bta_ag_ci_rx_write
+**
+** Description      This function is called to send data to the AG when the AG
+**                  is configured for AT command pass-through.  The function
+**                  copies data to an event buffer and sends it.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void bta_ag_ci_rx_write(UINT16 handle, char *p_data, UINT16 len);
+
+/******************************************************************************
+**
+** Function         bta_ag_ci_slc_ready
+**
+** Description      This function is called to notify AG that SLC is up at
+**                  the application. This funcion is only used when the app
+**                  is running in pass-through mode.
+**
+** Returns          void
+**
+******************************************************************************/
+extern void bta_ag_ci_slc_ready(UINT16 handle);
+
+/******************************************************************************
+**
+** Function         bta_ag_ci_wbs_command
+**
+** Description      This function is called to notify AG that a WBS command is
+**                  received
+**
+** Returns          void
+**
+******************************************************************************/
+extern void bta_ag_ci_wbs_command (UINT16 handle, char *p_data, UINT16 len);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* BTA_AG_CI_H */
diff --git a/rtkbt/code/bt/bta/include/bta_ag_co.h b/rtkbt/code/bt/bta/include/bta_ag_co.h
new file mode 100755
index 0000000..2f52581
--- /dev/null
+++ b/rtkbt/code/bt/bta/include/bta_ag_co.h
@@ -0,0 +1,112 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the interface file for audio gateway call-out functions.
+ *
+ ******************************************************************************/
+#ifndef BTA_AG_CO_H
+#define BTA_AG_CO_H
+
+#include "bta_ag_api.h"
+#include "hci/include/hci_audio.h"
+
+/*******************************************************************************
+**
+** Function         bta_ag_co_init
+**
+** Description      This callout function is executed by AG when it is
+**                  started by calling BTA_AgEnable().  This function can be
+**                  used by the phone to initialize audio paths or for other
+**                  initialization purposes.
+**
+**
+** Returns          Void.
+**
+*******************************************************************************/
+extern void bta_ag_co_init(void);
+
+/*******************************************************************************
+**
+** Function         bta_ag_co_audio_state
+**
+** Description      This function is called by the AG before the audio connection
+**                  is brought up, after it comes up, and after it goes down.
+**
+** Parameters       handle - handle of the AG instance
+**                  state - Audio state
+**                  codec - if WBS support is compiled in, codec to going to be used is provided
+**                      and when in SCO_STATE_SETUP, BTM_I2SPCMConfig() must be called with
+**                      the correct platform parameters.
+**                      in the other states codec type should not be ignored
+**
+** Returns          void
+**
+*******************************************************************************/
+#if (BTM_WBS_INCLUDED == TRUE )
+extern void bta_ag_co_audio_state(UINT16 handle, UINT8 app_id, UINT8 state,
+                                          tBTA_AG_PEER_CODEC codec);
+
+#else
+extern void bta_ag_co_audio_state(UINT16 handle, UINT8 app_id, UINT8 state);
+#endif
+
+/*******************************************************************************
+**
+** Function         bta_ag_co_data_open
+**
+** Description      This function is executed by AG when a service level connection
+**                  is opened.  The phone can use this function to set
+**                  up data paths or perform any required initialization or
+**                  set up particular to the connected service.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void bta_ag_co_data_open(UINT16 handle, tBTA_SERVICE_ID service);
+
+/*******************************************************************************
+**
+** Function         bta_ag_co_data_close
+**
+** Description      This function is called by AG when a service level
+**                  connection is closed
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void bta_ag_co_data_close(UINT16 handle);
+
+/*******************************************************************************
+**
+** Function         bta_ag_co_tx_write
+**
+** Description      This function is called by the AG to send data to the
+**                  phone when the AG is configured for AT command pass-through.
+**                  The implementation of this function must copy the data to
+**                  the phone’s memory.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void bta_ag_co_tx_write(UINT16 handle, UINT8 *p_data, UINT16 len);
+
+#endif /* BTA_AG_CO_H */
diff --git a/rtkbt/code/bt/bta/include/bta_api.h b/rtkbt/code/bt/bta/include/bta_api.h
new file mode 100755
index 0000000..ab6ea30
--- /dev/null
+++ b/rtkbt/code/bt/bta/include/bta_api.h
@@ -0,0 +1,2332 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2003-2014 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the public interface file for BTA, Broadcom's Bluetooth
+ *  application layer for mobile phones.
+ *
+ ******************************************************************************/
+#ifndef BTA_API_H
+#define BTA_API_H
+
+#include "bt_target.h"
+#include "bt_types.h"
+#include "btm_api.h"
+
+#if BLE_INCLUDED == TRUE
+#include "btm_ble_api.h"
+#endif
+
+/*****************************************************************************
+**  Constants and data types
+*****************************************************************************/
+
+/* Status Return Value */
+#define BTA_SUCCESS             0           /* Successful operation. */
+#define BTA_FAILURE             1           /* Generic failure. */
+#define BTA_PENDING             2           /* API cannot be completed right now */
+#define BTA_BUSY                3
+#define BTA_NO_RESOURCES        4
+#define BTA_WRONG_MODE          5
+
+typedef UINT8 tBTA_STATUS;
+
+/*
+ * Service ID
+ *
+ * NOTES: When you add a new Service ID for BTA AND require to change the value of BTA_MAX_SERVICE_ID,
+ *        make sure that the correct security ID of the new service from Security service definitions (btm_api.h)
+ *        should be added to bta_service_id_to_btm_srv_id_lkup_tbl table in bta_dm_act.c.
+ */
+
+#define BTA_RES_SERVICE_ID      0           /* Reserved */
+#define BTA_SPP_SERVICE_ID      1           /* Serial port profile. */
+#define BTA_DUN_SERVICE_ID      2           /* Dial-up networking profile. */
+#define BTA_A2DP_SOURCE_SERVICE_ID      3   /* A2DP Source profile. */
+#define BTA_LAP_SERVICE_ID      4           /* LAN access profile. */
+#define BTA_HSP_SERVICE_ID      5           /* Headset profile. */
+#define BTA_HFP_SERVICE_ID      6           /* Hands-free profile. */
+#define BTA_OPP_SERVICE_ID      7           /* Object push  */
+#define BTA_FTP_SERVICE_ID      8           /* File transfer */
+#define BTA_CTP_SERVICE_ID      9           /* Cordless Terminal */
+#define BTA_ICP_SERVICE_ID      10          /* Intercom Terminal */
+#define BTA_SYNC_SERVICE_ID     11          /* Synchronization */
+#define BTA_BPP_SERVICE_ID      12          /* Basic printing profile */
+#define BTA_BIP_SERVICE_ID      13          /* Basic Imaging profile */
+#define BTA_PANU_SERVICE_ID     14          /* PAN User */
+#define BTA_NAP_SERVICE_ID      15          /* PAN Network access point */
+#define BTA_GN_SERVICE_ID       16          /* PAN Group Ad-hoc networks */
+#define BTA_SAP_SERVICE_ID      17          /* SIM Access profile */
+#define BTA_A2DP_SINK_SERVICE_ID        18  /* A2DP Sink */
+#define BTA_AVRCP_SERVICE_ID    19          /* A/V remote control */
+#define BTA_HID_SERVICE_ID      20          /* HID */
+#define BTA_VDP_SERVICE_ID      21          /* Video distribution */
+#define BTA_PBAP_SERVICE_ID     22          /* PhoneBook Access Server*/
+#define BTA_HSP_HS_SERVICE_ID   23          /* HFP HS role */
+#define BTA_HFP_HS_SERVICE_ID   24          /* HSP HS role */
+#define BTA_MAP_SERVICE_ID      25          /* Message Access Profile */
+#define BTA_MN_SERVICE_ID       26          /* Message Notification Service */
+#define BTA_HDP_SERVICE_ID      27          /* Health Device Profile */
+#define BTA_PCE_SERVICE_ID      28          /* PhoneBook Access Client*/
+#define BTA_SDP_SERVICE_ID      29          /* SDP Search*/
+#if BLE_INCLUDED == TRUE && BTA_GATT_INCLUDED == TRUE
+/* BLE profile service ID */
+#define BTA_BLE_SERVICE_ID      30          /* GATT profile */
+
+#define BTA_USER_SERVICE_ID     31          /* User requested UUID */
+
+#define BTA_MAX_SERVICE_ID      32
+#else
+#define BTA_USER_SERVICE_ID     30          /* User requested UUID */
+#define BTA_MAX_SERVICE_ID      31
+#endif
+/* service IDs (BTM_SEC_SERVICE_FIRST_EMPTY + 1) to (BTM_SEC_MAX_SERVICES - 1)
+ * are used by BTA JV */
+#define BTA_FIRST_JV_SERVICE_ID     (BTM_SEC_SERVICE_FIRST_EMPTY + 1)
+#define BTA_LAST_JV_SERVICE_ID      (BTM_SEC_MAX_SERVICES - 1)
+
+typedef UINT8 tBTA_SERVICE_ID;
+
+/* Service ID Mask */
+#define BTA_RES_SERVICE_MASK        0x00000001  /* Reserved */
+#define BTA_SPP_SERVICE_MASK        0x00000002  /* Serial port profile. */
+#define BTA_DUN_SERVICE_MASK        0x00000004  /* Dial-up networking profile. */
+#define BTA_FAX_SERVICE_MASK        0x00000008  /* Fax profile. */
+#define BTA_LAP_SERVICE_MASK        0x00000010  /* LAN access profile. */
+#define BTA_HSP_SERVICE_MASK        0x00000020  /* HSP AG role. */
+#define BTA_HFP_SERVICE_MASK        0x00000040  /* HFP AG role */
+#define BTA_OPP_SERVICE_MASK        0x00000080  /* Object push  */
+#define BTA_FTP_SERVICE_MASK        0x00000100  /* File transfer */
+#define BTA_CTP_SERVICE_MASK        0x00000200  /* Cordless Terminal */
+#define BTA_ICP_SERVICE_MASK        0x00000400  /* Intercom Terminal */
+#define BTA_SYNC_SERVICE_MASK       0x00000800  /* Synchronization */
+#define BTA_BPP_SERVICE_MASK        0x00001000  /* Print server */
+#define BTA_BIP_SERVICE_MASK        0x00002000  /* Basic Imaging */
+#define BTA_PANU_SERVICE_MASK       0x00004000  /* PAN User */
+#define BTA_NAP_SERVICE_MASK        0x00008000  /* PAN Network access point */
+#define BTA_GN_SERVICE_MASK         0x00010000  /* PAN Group Ad-hoc networks */
+#define BTA_SAP_SERVICE_MASK        0x00020000  /* PAN Group Ad-hoc networks */
+#define BTA_A2DP_SERVICE_MASK       0x00040000  /* Advanced audio distribution */
+#define BTA_AVRCP_SERVICE_MASK      0x00080000  /* A/V remote control */
+#define BTA_HID_SERVICE_MASK        0x00100000  /* HID */
+#define BTA_VDP_SERVICE_MASK        0x00200000  /* Video distribution */
+#define BTA_PBAP_SERVICE_MASK       0x00400000  /* Phone Book Server */
+#define BTA_HSP_HS_SERVICE_MASK     0x00800000  /* HFP HS role */
+#define BTA_HFP_HS_SERVICE_MASK     0x01000000  /* HSP HS role */
+#define BTA_MAS_SERVICE_MASK        0x02000000  /* Message Access Profile */
+#define BTA_MN_SERVICE_MASK         0x04000000  /* Message Notification Profile */
+#define BTA_HL_SERVICE_MASK         0x08000000  /* Health Device Profile */
+#define BTA_PCE_SERVICE_MASK        0x10000000  /* Phone Book Client */
+
+#if BLE_INCLUDED == TRUE && BTA_GATT_INCLUDED == TRUE
+#define BTA_BLE_SERVICE_MASK        0x20000000  /* GATT based service */
+#define BTA_USER_SERVICE_MASK       0x40000000  /* Message Notification Profile */
+#else
+#define BTA_USER_SERVICE_MASK       0x20000000  /* Message Notification Profile */
+#endif
+
+#if BLE_INCLUDED == TRUE && BTA_GATT_INCLUDED == TRUE
+#define BTA_ALL_SERVICE_MASK        0x3FFFFFFF  /* All services supported by BTA. */
+#else
+#define BTA_ALL_SERVICE_MASK        0x1FFFFFFF  /* All services supported by BTA. */
+#endif
+
+typedef UINT32 tBTA_SERVICE_MASK;
+
+/* extended service mask, including mask with one or more GATT UUID */
+typedef struct
+{
+    tBTA_SERVICE_MASK   srvc_mask;
+    UINT8               num_uuid;
+    tBT_UUID            *p_uuid;
+}tBTA_SERVICE_MASK_EXT;
+
+/* Security Setting Mask */
+#define BTA_SEC_NONE            BTM_SEC_NONE                                         /* No security. */
+#define BTA_SEC_AUTHORIZE       (BTM_SEC_IN_AUTHORIZE )                              /* Authorization required (only needed for out going connection )*/
+#define BTA_SEC_AUTHENTICATE    (BTM_SEC_IN_AUTHENTICATE | BTM_SEC_OUT_AUTHENTICATE) /* Authentication required. */
+#define BTA_SEC_ENCRYPT         (BTM_SEC_IN_ENCRYPT | BTM_SEC_OUT_ENCRYPT)           /* Encryption required. */
+#define BTA_SEC_MODE4_LEVEL4    (BTM_SEC_MODE4_LEVEL4)                               /* Mode 4 level 4 service, i.e. incoming/outgoing MITM and P-256 encryption */
+#define BTA_SEC_MITM            (BTM_SEC_IN_MITM | BTM_SEC_OUT_MITM)                 /* Man-In-The_Middle protection */
+#define BTA_SEC_IN_16_DIGITS    (BTM_SEC_IN_MIN_16_DIGIT_PIN)                        /* Min 16 digit for pin code */
+
+typedef UINT16 tBTA_SEC;
+
+/* Ignore for Discoverable, Connectable, Pairable and Connectable Paired only device modes */
+#define BTA_DM_IGNORE           0x00FF
+
+/* Ignore for Discoverable, Connectable only for LE modes */
+#define BTA_DM_LE_IGNORE           0xFF00
+
+#define BTA_APP_ID_PAN_MULTI    0xFE    /* app id for pan multiple connection */
+#define BTA_ALL_APP_ID          0xFF
+
+/* Discoverable Modes */
+#define BTA_DM_NON_DISC         BTM_NON_DISCOVERABLE        /* Device is not discoverable. */
+#define BTA_DM_GENERAL_DISC     BTM_GENERAL_DISCOVERABLE    /* General discoverable. */
+#define BTA_DM_LIMITED_DISC     BTM_LIMITED_DISCOVERABLE    /* Limited discoverable. */
+#if ((defined BLE_INCLUDED) && (BLE_INCLUDED == TRUE))
+#define BTA_DM_BLE_NON_DISCOVERABLE        BTM_BLE_NON_DISCOVERABLE        /* Device is not LE discoverable */
+#define BTA_DM_BLE_GENERAL_DISCOVERABLE    BTM_BLE_GENERAL_DISCOVERABLE    /* Device is LE General discoverable */
+#define BTA_DM_BLE_LIMITED_DISCOVERABLE    BTM_BLE_LIMITED_DISCOVERABLE    /* Device is LE Limited discoverable */
+#endif
+typedef UINT16 tBTA_DM_DISC;        /* this discoverability mode is a bit mask among BR mode and LE mode */
+
+/* Connectable Modes */
+#define BTA_DM_NON_CONN         BTM_NON_CONNECTABLE         /* Device is not connectable. */
+#define BTA_DM_CONN             BTM_CONNECTABLE             /* Device is connectable. */
+#if ((defined BLE_INCLUDED) && (BLE_INCLUDED == TRUE))
+#define BTA_DM_BLE_NON_CONNECTABLE      BTM_BLE_NON_CONNECTABLE     /* Device is LE non-connectable. */
+#define BTA_DM_BLE_CONNECTABLE          BTM_BLE_CONNECTABLE         /* Device is LE connectable. */
+#endif
+
+typedef UINT16 tBTA_DM_CONN;
+
+#define BTA_TRANSPORT_UNKNOWN   0
+#define BTA_TRANSPORT_BR_EDR    BT_TRANSPORT_BR_EDR
+#define BTA_TRANSPORT_LE        BT_TRANSPORT_LE
+typedef tBT_TRANSPORT tBTA_TRANSPORT;
+
+/* Pairable Modes */
+#define BTA_DM_PAIRABLE         1
+#define BTA_DM_NON_PAIRABLE     0
+
+/* Connectable Paired Only Mode */
+#define BTA_DM_CONN_ALL         0
+#define BTA_DM_CONN_PAIRED      1
+
+/* Inquiry Modes */
+#define BTA_DM_INQUIRY_NONE     BTM_INQUIRY_NONE            /*No BR inquiry. */
+#define BTA_DM_GENERAL_INQUIRY  BTM_GENERAL_INQUIRY         /* Perform general inquiry. */
+#define BTA_DM_LIMITED_INQUIRY  BTM_LIMITED_INQUIRY         /* Perform limited inquiry. */
+
+#if ((defined BLE_INCLUDED) && (BLE_INCLUDED == TRUE))
+#define BTA_BLE_INQUIRY_NONE    BTM_BLE_INQUIRY_NONE
+#define BTA_BLE_GENERAL_INQUIRY BTM_BLE_GENERAL_INQUIRY      /* Perform LE general inquiry. */
+#define BTA_BLE_LIMITED_INQUIRY BTM_BLE_LIMITED_INQUIRY      /* Perform LE limited inquiry. */
+#endif
+typedef UINT8 tBTA_DM_INQ_MODE;
+
+/* Inquiry Filter Type */
+#define BTA_DM_INQ_CLR          BTM_CLR_INQUIRY_FILTER          /* Clear inquiry filter. */
+#define BTA_DM_INQ_DEV_CLASS    BTM_FILTER_COND_DEVICE_CLASS    /* Filter on device class. */
+#define BTA_DM_INQ_BD_ADDR      BTM_FILTER_COND_BD_ADDR         /* Filter on a specific  BD address. */
+
+typedef UINT8 tBTA_DM_INQ_FILT;
+
+/* Authorize Response */
+#define BTA_DM_AUTH_PERM        0      /* Authorized for future connections to the service */
+#define BTA_DM_AUTH_TEMP        1      /* Authorized for current connection only */
+#define BTA_DM_NOT_AUTH         2      /* Not authorized for the service */
+
+typedef UINT8 tBTA_AUTH_RESP;
+
+/* M/S preferred roles */
+#define BTA_ANY_ROLE          0x00
+#define BTA_MASTER_ROLE_PREF  0x01
+#define BTA_MASTER_ROLE_ONLY  0x02
+#define BTA_SLAVE_ROLE_ONLY   0x03     /* Used for PANU only, skip role switch to master */
+
+typedef UINT8 tBTA_PREF_ROLES;
+
+enum
+{
+
+    BTA_DM_NO_SCATTERNET,        /* Device doesn't support scatternet, it might
+                                    support "role switch during connection" for
+                                    an incoming connection, when it already has
+                                    another connection in master role */
+    BTA_DM_PARTIAL_SCATTERNET,   /* Device supports partial scatternet. It can have
+                                    simulateous connection in Master and Slave roles
+                                    for short period of time */
+    BTA_DM_FULL_SCATTERNET       /* Device can have simultaneous connection in master
+                                    and slave roles */
+
+};
+
+
+/* Inquiry filter device class condition */
+typedef struct
+{
+    DEV_CLASS       dev_class;        /* device class of interest */
+    DEV_CLASS       dev_class_mask;   /* mask to determine the bits of device class of interest */
+} tBTA_DM_COD_COND;
+
+
+/* Inquiry Filter Condition */
+typedef union
+{
+    BD_ADDR              bd_addr;            /* BD address of  device to filter. */
+    tBTA_DM_COD_COND     dev_class_cond;     /* Device class filter condition */
+} tBTA_DM_INQ_COND;
+
+/* Inquiry Parameters */
+typedef struct
+{
+    tBTA_DM_INQ_MODE    mode;           /* Inquiry mode, limited or general. */
+    UINT8               duration;       /* Inquiry duration in 1.28 sec units. */
+    UINT8               max_resps;      /* Maximum inquiry responses.  Set to zero for unlimited responses. */
+    BOOLEAN             report_dup;     /* report duplicated inquiry response with higher RSSI value */
+    tBTA_DM_INQ_FILT    filter_type;    /* Filter condition type. */
+    tBTA_DM_INQ_COND    filter_cond;    /* Filter condition data. */
+#if (defined(BTA_HOST_INTERLEAVE_SEARCH) && BTA_HOST_INTERLEAVE_SEARCH == TRUE)
+    UINT8               intl_duration[4];/*duration array storing the interleave scan's time portions*/
+#endif
+} tBTA_DM_INQ;
+
+typedef struct
+{
+    UINT8   bta_dm_eir_min_name_len;        /* minimum length of local name when it is shortened */
+#if (BTA_EIR_CANNED_UUID_LIST == TRUE)
+    UINT8   bta_dm_eir_uuid16_len;          /* length of 16-bit UUIDs */
+    UINT8  *bta_dm_eir_uuid16;              /* 16-bit UUIDs */
+#else
+    UINT32  uuid_mask[BTM_EIR_SERVICE_ARRAY_SIZE]; /* mask of UUID list in EIR */
+#endif
+    INT8   *bta_dm_eir_inq_tx_power;        /* Inquiry TX power         */
+    UINT8   bta_dm_eir_flag_len;            /* length of flags in bytes */
+    UINT8  *bta_dm_eir_flags;               /* flags for EIR */
+    UINT8   bta_dm_eir_manufac_spec_len;    /* length of manufacturer specific in bytes */
+    UINT8  *bta_dm_eir_manufac_spec;        /* manufacturer specific */
+    UINT8   bta_dm_eir_additional_len;      /* length of additional data in bytes */
+    UINT8  *bta_dm_eir_additional;          /* additional data */
+} tBTA_DM_EIR_CONF;
+
+#if BLE_INCLUDED == TRUE
+/* ADV data flag bit definition used for BTM_BLE_AD_TYPE_FLAG */
+#define BTA_BLE_LIMIT_DISC_FLAG     BTM_BLE_LIMIT_DISC_FLAG
+#define BTA_BLE_GEN_DISC_FLAG       BTM_BLE_GEN_DISC_FLAG
+#define BTA_BLE_BREDR_NOT_SPT       BTM_BLE_BREDR_NOT_SPT
+#define BTA_BLE_DMT_CONTROLLER_SPT  BTM_BLE_DMT_CONTROLLER_SPT
+#define BTA_BLE_DMT_HOST_SPT        BTM_BLE_DMT_HOST_SPT
+#define BTA_BLE_NON_LIMIT_DISC_FLAG BTM_BLE_NON_LIMIT_DISC_FLAG
+#define BTA_BLE_ADV_FLAG_MASK       BTM_BLE_ADV_FLAG_MASK
+#define BTA_BLE_LIMIT_DISC_MASK     BTM_BLE_LIMIT_DISC_MASK
+
+/* ADV data bit mask */
+#define BTA_BLE_AD_BIT_DEV_NAME        BTM_BLE_AD_BIT_DEV_NAME
+#define BTA_BLE_AD_BIT_FLAGS           BTM_BLE_AD_BIT_FLAGS
+#define BTA_BLE_AD_BIT_MANU            BTM_BLE_AD_BIT_MANU
+#define BTA_BLE_AD_BIT_TX_PWR          BTM_BLE_AD_BIT_TX_PWR
+#define BTA_BLE_AD_BIT_INT_RANGE       BTM_BLE_AD_BIT_INT_RANGE
+#define BTA_BLE_AD_BIT_SERVICE         BTM_BLE_AD_BIT_SERVICE
+#define BTA_BLE_AD_BIT_APPEARANCE      BTM_BLE_AD_BIT_APPEARANCE
+#define BTA_BLE_AD_BIT_PROPRIETARY     BTM_BLE_AD_BIT_PROPRIETARY
+#define BTA_DM_BLE_AD_BIT_SERVICE_SOL     BTM_BLE_AD_BIT_SERVICE_SOL
+#define BTA_DM_BLE_AD_BIT_SERVICE_DATA    BTM_BLE_AD_BIT_SERVICE_DATA
+#define BTA_DM_BLE_AD_BIT_SIGN_DATA       BTM_BLE_AD_BIT_SIGN_DATA
+#define BTA_DM_BLE_AD_BIT_SERVICE_128SOL  BTM_BLE_AD_BIT_SERVICE_128SOL
+#define BTA_DM_BLE_AD_BIT_PUBLIC_ADDR     BTM_BLE_AD_BIT_PUBLIC_ADDR
+#define BTA_DM_BLE_AD_BIT_RANDOM_ADDR     BTM_BLE_AD_BIT_RANDOM_ADDR
+#define BTA_DM_BLE_AD_BIT_SERVICE_128     BTM_BLE_AD_BIT_SERVICE_128      /*128-bit Service UUIDs*/
+
+typedef tBTM_BLE_AD_MASK tBTA_BLE_AD_MASK;
+typedef tBTM_BLE_INT_RANGE tBTA_BLE_INT_RANGE;
+typedef tBTM_BLE_SERVICE tBTA_BLE_SERVICE;
+typedef tBTM_BLE_PROP_ELEM tBTA_BLE_PROP_ELEM;
+typedef tBTM_BLE_PROPRIETARY tBTA_BLE_PROPRIETARY;
+typedef tBTM_BLE_MANU tBTA_BLE_MANU;
+typedef tBTM_BLE_SERVICE_DATA tBTA_BLE_SERVICE_DATA;
+typedef tBTM_BLE_128SERVICE tBTA_BLE_128SERVICE;
+typedef tBTM_BLE_32SERVICE  tBTA_BLE_32SERVICE;
+
+typedef struct
+{
+    tBTA_BLE_INT_RANGE      int_range;          /* slave prefered conn interval range */
+    tBTA_BLE_MANU           manu;            /* manufacturer data */
+    tBTA_BLE_SERVICE        services;        /* 16 bits services */
+    tBTA_BLE_128SERVICE     services_128b;   /* 128 bits service */
+    tBTA_BLE_32SERVICE      service_32b;     /* 32 bits Service UUID */
+    tBTA_BLE_SERVICE        sol_services;    /* 16 bits services Solicitation UUIDs */
+    tBTA_BLE_32SERVICE      sol_service_32b; /* List of 32 bit Service Solicitation UUIDs */
+    tBTA_BLE_128SERVICE     sol_service_128b;/* List of 128 bit Service Solicitation UUIDs */
+    tBTA_BLE_PROPRIETARY    proprietary;     /* proprietary data */
+    tBTA_BLE_SERVICE_DATA   service_data;    /* service data */
+    UINT16                  appearance;         /* appearance data */
+    UINT8                   flag;
+    UINT8                   tx_power;
+}tBTA_BLE_ADV_DATA;
+
+typedef void (tBTA_SET_ADV_DATA_CMPL_CBACK) (tBTA_STATUS status);
+
+/* advertising channel map */
+#define BTA_BLE_ADV_CHNL_37 BTM_BLE_ADV_CHNL_37
+#define BTA_BLE_ADV_CHNL_38 BTM_BLE_ADV_CHNL_38
+#define BTA_BLE_ADV_CHNL_39 BTM_BLE_ADV_CHNL_39
+typedef tBTM_BLE_ADV_CHNL_MAP tBTA_BLE_ADV_CHNL_MAP; /* use as a bit mask */
+
+/* advertising filter policy */
+typedef tBTM_BLE_AFP   tBTA_BLE_AFP;
+
+/* adv event type */
+#define BTA_BLE_CONNECT_EVT         BTM_BLE_CONNECT_EVT     /* Connectable undirected advertising */
+#define BTA_BLE_CONNECT_DIR_EVT     BTM_BLE_CONNECT_DIR_EVT /* Connectable directed advertising */
+#define BTA_BLE_DISCOVER_EVT        BTM_BLE_DISCOVER_EVT    /* Scannable undirected advertising */
+#define BTA_BLE_NON_CONNECT_EVT     BTM_BLE_NON_CONNECT_EVT /* Non connectable undirected advertising */
+typedef UINT8 tBTA_BLE_ADV_EVT;
+
+/* adv tx power level */
+#define BTA_BLE_ADV_TX_POWER_MIN        0           /* minimum tx power */
+#define BTA_BLE_ADV_TX_POWER_LOW        1           /* low tx power     */
+#define BTA_BLE_ADV_TX_POWER_MID        2           /* middle tx power  */
+#define BTA_BLE_ADV_TX_POWER_UPPER      3           /* upper tx power   */
+#define BTA_BLE_ADV_TX_POWER_MAX        4           /* maximum tx power */
+typedef UINT8 tBTA_BLE_ADV_TX_POWER;
+
+/* advertising instance parameters */
+typedef struct
+{
+    UINT16                  adv_int_min;            /* minimum adv interval */
+    UINT16                  adv_int_max;            /* maximum adv interval */
+    tBTA_BLE_ADV_EVT        adv_type;               /* adv event type */
+    tBTA_BLE_ADV_CHNL_MAP   channel_map;            /* adv channel map */
+    tBTA_BLE_AFP            adv_filter_policy;      /* advertising filter policy */
+    tBTA_BLE_ADV_TX_POWER   tx_power;               /* adv tx power */
+}tBTA_BLE_ADV_PARAMS;
+
+/* These are the fields returned in each device adv packet.  It
+** is returned in the results callback if registered.
+*/
+typedef struct
+{
+    UINT8               conn_mode;
+    tBTA_BLE_AD_MASK    ad_mask;        /* mask of the valid adv data field */
+    UINT8               flag;
+    UINT8               tx_power_level;
+    UINT8               remote_name_len;
+    UINT8               *p_remote_name;
+    tBTA_BLE_SERVICE    service;
+} tBTA_BLE_INQ_DATA;
+
+enum
+{
+    BTA_BLE_BATCH_SCAN_MODE_PASS = 1,
+    BTA_BLE_BATCH_SCAN_MODE_ACTI = 2,
+    BTA_BLE_BATCH_SCAN_MODE_PASS_ACTI = 3
+};
+typedef UINT8 tBTA_BLE_BATCH_SCAN_MODE;
+
+enum
+{
+    BTA_BLE_DISCARD_OLD_ITEMS=0,
+    BTA_BLE_DISCARD_LOWER_RSSI_ITEMS=1
+};
+typedef UINT8 tBTA_BLE_DISCARD_RULE;
+
+enum
+{
+    BTA_BLE_ADV_SEEN_FIRST_TIME=0,
+    BTA_BLE_ADV_TRACKING_TIMEOUT=1
+};
+typedef UINT8 tBTA_BLE_ADV_CHANGE_REASON;
+
+enum
+{
+    BTA_BLE_BATCH_SCAN_ENB_EVT      = 1,
+    BTA_BLE_BATCH_SCAN_CFG_STRG_EVT = 2,
+    BTA_BLE_BATCH_SCAN_DATA_EVT     = 3,
+    BTA_BLE_BATCH_SCAN_THRES_EVT    = 4,
+    BTA_BLE_BATCH_SCAN_PARAM_EVT    = 5,
+    BTA_BLE_BATCH_SCAN_DIS_EVT      = 6
+};
+typedef tBTM_BLE_BATCH_SCAN_EVT tBTA_BLE_BATCH_SCAN_EVT;
+
+typedef tBTM_BLE_TRACK_ADV_ACTION tBTA_BLE_TRACK_ADV_ACTION;
+#endif
+
+/* BLE customer specific feature function type definitions */
+/* data type used on customer specific feature for RSSI monitoring */
+#define BTA_BLE_RSSI_ALERT_HI        0
+#define BTA_BLE_RSSI_ALERT_RANGE     1
+#define BTA_BLE_RSSI_ALERT_LO        2
+typedef UINT8 tBTA_DM_BLE_RSSI_ALERT_TYPE;
+
+#define BTA_BLE_RSSI_ALERT_NONE         BTM_BLE_RSSI_ALERT_NONE         /*    (0) */
+#define BTA_BLE_RSSI_ALERT_HI_BIT       BTM_BLE_RSSI_ALERT_HI_BIT       /*    (1) */
+#define BTA_BLE_RSSI_ALERT_RANGE_BIT    BTM_BLE_RSSI_ALERT_RANGE_BIT    /*    (1 << 1) */
+#define BTA_BLE_RSSI_ALERT_LO_BIT       BTM_BLE_RSSI_ALERT_LO_BIT       /*    (1 << 2) */
+typedef UINT8     tBTA_DM_BLE_RSSI_ALERT_MASK;
+
+
+typedef void (tBTA_DM_BLE_RSSI_CBACK) (BD_ADDR bd_addr, tBTA_DM_BLE_RSSI_ALERT_TYPE alert_type, INT8 rssi);
+
+/* max number of filter spot for different filter type */
+#define BTA_DM_BLE_MAX_UUID_FILTER     BTM_BLE_MAX_UUID_FILTER    /* 8 */
+#define BTA_DM_BLE_MAX_ADDR_FILTER     BTM_BLE_MAX_ADDR_FILTER    /* 8 */
+#define BTA_DM_BLE_PF_STR_COND_MAX     BTM_BLE_PF_STR_COND_MAX    /* 4    apply to manu data , or local name */
+#define BTA_DM_BLE_PF_STR_LEN_MAX      BTM_BLE_PF_STR_LEN_MAX     /* match for first 20 bytes */
+
+#define BTA_DM_BLE_PF_LOGIC_OR              0
+#define BTA_DM_BLE_PF_LOGIC_AND             1
+typedef UINT8 tBTA_DM_BLE_PF_LOGIC_TYPE;
+
+enum
+{
+    BTA_DM_BLE_SCAN_COND_ADD,
+    BTA_DM_BLE_SCAN_COND_DELETE,
+    BTA_DM_BLE_SCAN_COND_CLEAR = 2
+};
+typedef UINT8 tBTA_DM_BLE_SCAN_COND_OP;
+
+/* ADV payload filtering vendor specific call event */
+enum
+{
+    BTA_BLE_SCAN_PF_ENABLE_EVT = 7,
+    BTA_BLE_SCAN_PF_COND_EVT
+};
+
+/* filter selection bit index  */
+#define BTA_DM_BLE_PF_ADDR_FILTER          BTM_BLE_PF_ADDR_FILTER
+#define BTA_DM_BLE_PF_SRVC_DATA            BTM_BLE_PF_SRVC_DATA
+#define BTA_DM_BLE_PF_SRVC_UUID            BTM_BLE_PF_SRVC_UUID
+#define BTA_DM_BLE_PF_SRVC_SOL_UUID        BTM_BLE_PF_SRVC_SOL_UUID
+#define BTA_DM_BLE_PF_LOCAL_NAME           BTM_BLE_PF_LOCAL_NAME
+#define BTA_DM_BLE_PF_MANU_DATA            BTM_BLE_PF_MANU_DATA
+#define BTA_DM_BLE_PF_SRVC_DATA_PATTERN    BTM_BLE_PF_SRVC_DATA_PATTERN
+#define BTA_DM_BLE_PF_TYPE_ALL             BTM_BLE_PF_TYPE_ALL
+#define BTA_DM_BLE_PF_TYPE_MAX             BTM_BLE_PF_TYPE_MAX
+typedef UINT8   tBTA_DM_BLE_PF_COND_TYPE;
+
+typedef union
+{
+      UINT16              uuid16_mask;
+      UINT32              uuid32_mask;
+      UINT8               uuid128_mask[LEN_UUID_128];
+}tBTA_DM_BLE_PF_COND_MASK;
+
+typedef struct
+{
+    tBLE_BD_ADDR                *p_target_addr;     /* target address, if NULL, generic UUID filter */
+    tBT_UUID                    uuid;           /* UUID condition */
+    tBTA_DM_BLE_PF_LOGIC_TYPE   cond_logic;    /* AND/OR */
+    tBTA_DM_BLE_PF_COND_MASK    *p_uuid_mask;           /* UUID condition mask, if NULL, match exact as UUID condition */
+}tBTA_DM_BLE_PF_UUID_COND;
+
+typedef struct
+{
+    UINT8                   data_len;       /* <= 20 bytes */
+    UINT8                   *p_data;
+}tBTA_DM_BLE_PF_LOCAL_NAME_COND;
+
+typedef struct
+{
+    UINT16                  company_id;     /* company ID */
+    UINT8                   data_len;       /* <= 20 bytes */
+    UINT8                   *p_pattern;
+    UINT16                  company_id_mask; /* UUID value mask */
+    UINT8                   *p_pattern_mask; /* Manufacturer data matching mask, same length
+                                                as data pattern, set to all 0xff, match exact data */
+}tBTA_DM_BLE_PF_MANU_COND;
+
+typedef struct
+{
+    UINT16                  uuid;     /* service ID */
+    UINT8                   data_len;       /* <= 20 bytes */
+    UINT8                   *p_pattern;
+    UINT8                   *p_pattern_mask; /* Service data matching mask, same length
+                                                as data pattern, set to all 0xff, match exact data */
+}tBTA_DM_BLE_PF_SRVC_PATTERN_COND;
+
+typedef union
+{
+    tBLE_BD_ADDR                            target_addr;
+    tBTA_DM_BLE_PF_LOCAL_NAME_COND             local_name; /* lcoal name filtering */
+    tBTA_DM_BLE_PF_MANU_COND                   manu_data;  /* manufactuer data filtering */
+    tBTA_DM_BLE_PF_UUID_COND                   srvc_uuid;  /* service UUID filtering */
+    tBTA_DM_BLE_PF_UUID_COND                   solicitate_uuid;   /* solicitated service UUID filtering */
+    tBTA_DM_BLE_PF_SRVC_PATTERN_COND           srvc_data;      /* service data pattern */
+}tBTA_DM_BLE_PF_COND_PARAM;
+
+typedef UINT8 tBTA_DM_BLE_PF_FILT_INDEX;
+typedef UINT8 tBTA_DM_BLE_PF_AVBL_SPACE;
+
+typedef INT8 tBTA_DM_RSSI_VALUE;
+typedef UINT8 tBTA_DM_LINK_QUALITY_VALUE;
+
+
+typedef UINT8 tBTA_SIG_STRENGTH_MASK;
+
+
+/* Security Callback Events */
+#define BTA_DM_ENABLE_EVT               0       /* Enable Event */
+#define BTA_DM_DISABLE_EVT              1       /* Disable Event */
+#define BTA_DM_PIN_REQ_EVT              2       /* PIN request. */
+#define BTA_DM_AUTH_CMPL_EVT            3       /* Authentication complete indication. */
+#define BTA_DM_AUTHORIZE_EVT            4       /* Authorization request. */
+#define BTA_DM_LINK_UP_EVT              5       /* Connection UP event */
+#define BTA_DM_LINK_DOWN_EVT            6       /* Connection DOWN event */
+#define BTA_DM_SIG_STRENGTH_EVT         7       /* Signal strength for bluetooth connection */
+#define BTA_DM_BUSY_LEVEL_EVT           8       /* System busy level */
+#define BTA_DM_BOND_CANCEL_CMPL_EVT     9       /* Bond cancel complete indication */
+#define BTA_DM_SP_CFM_REQ_EVT           10      /* Simple Pairing User Confirmation request. */
+#define BTA_DM_SP_KEY_NOTIF_EVT         11      /* Simple Pairing Passkey Notification */
+#define BTA_DM_SP_RMT_OOB_EVT           12      /* Simple Pairing Remote OOB Data request. */
+#define BTA_DM_SP_KEYPRESS_EVT          13      /* Key press notification event. */
+#define BTA_DM_ROLE_CHG_EVT             14      /* Role Change event. */
+#define BTA_DM_BLE_KEY_EVT              15      /* BLE SMP key event for peer device keys */
+#define BTA_DM_BLE_SEC_REQ_EVT          16      /* BLE SMP security request */
+#define BTA_DM_BLE_PASSKEY_NOTIF_EVT    17      /* SMP passkey notification event */
+#define BTA_DM_BLE_PASSKEY_REQ_EVT      18      /* SMP passkey request event */
+#define BTA_DM_BLE_OOB_REQ_EVT          19      /* SMP OOB request event */
+#define BTA_DM_BLE_LOCAL_IR_EVT         20      /* BLE local IR event */
+#define BTA_DM_BLE_LOCAL_ER_EVT         21      /* BLE local ER event */
+#define BTA_DM_BLE_NC_REQ_EVT           22      /* SMP Numeric Comparison request event */
+#define BTA_DM_SP_RMT_OOB_EXT_EVT       23      /* Simple Pairing Remote OOB Extended Data request. */
+#define BTA_DM_BLE_AUTH_CMPL_EVT        24      /* BLE Auth complete */
+#define BTA_DM_DEV_UNPAIRED_EVT         25
+#define BTA_DM_HW_ERROR_EVT             26      /* BT Chip H/W error */
+#define BTA_DM_LE_FEATURES_READ         27      /* Cotroller specific LE features are read */
+#define BTA_DM_ENER_INFO_READ           28      /* Energy info read */
+typedef UINT8 tBTA_DM_SEC_EVT;
+
+/* Structure associated with BTA_DM_ENABLE_EVT */
+typedef struct
+{
+    tBTA_STATUS    status;
+} tBTA_DM_ENABLE;
+
+/* Structure associated with BTA_DM_PIN_REQ_EVT */
+typedef struct
+{
+    /* Note: First 3 data members must be, bd_addr, dev_class, and bd_name in order */
+    BD_ADDR         bd_addr;            /* BD address peer device. */
+    DEV_CLASS       dev_class;          /* Class of Device */
+    BD_NAME         bd_name;            /* Name of peer device. */
+    BOOLEAN         min_16_digit;       /* TRUE if the pin returned must be at least 16 digits */
+} tBTA_DM_PIN_REQ;
+
+/* BLE related definition */
+
+#define BTA_DM_AUTH_FAIL_BASE                   (HCI_ERR_MAX_ERR + 10)
+#define BTA_DM_AUTH_CONVERT_SMP_CODE(x)        (BTA_DM_AUTH_FAIL_BASE + (x))
+#define BTA_DM_AUTH_SMP_PASSKEY_FAIL             BTA_DM_AUTH_CONVERT_SMP_CODE (SMP_PASSKEY_ENTRY_FAIL)
+#define BTA_DM_AUTH_SMP_OOB_FAIL                (BTA_DM_AUTH_FAIL_BASE + SMP_OOB_FAIL)
+#define BTA_DM_AUTH_SMP_PAIR_AUTH_FAIL          (BTA_DM_AUTH_FAIL_BASE + SMP_PAIR_AUTH_FAIL)
+#define BTA_DM_AUTH_SMP_CONFIRM_VALUE_FAIL      (BTA_DM_AUTH_FAIL_BASE + SMP_CONFIRM_VALUE_ERR)
+#define BTA_DM_AUTH_SMP_PAIR_NOT_SUPPORT        (BTA_DM_AUTH_FAIL_BASE + SMP_PAIR_NOT_SUPPORT)
+#define BTA_DM_AUTH_SMP_ENC_KEY_SIZE            (BTA_DM_AUTH_FAIL_BASE + SMP_ENC_KEY_SIZE)
+#define BTA_DM_AUTH_SMP_INVALID_CMD             (BTA_DM_AUTH_FAIL_BASE + SMP_INVALID_CMD)
+#define BTA_DM_AUTH_SMP_UNKNOWN_ERR             (BTA_DM_AUTH_FAIL_BASE + SMP_PAIR_FAIL_UNKNOWN)
+#define BTA_DM_AUTH_SMP_REPEATED_ATTEMPT        (BTA_DM_AUTH_FAIL_BASE + SMP_REPEATED_ATTEMPTS)
+#define BTA_DM_AUTH_SMP_INVALID_PARAMETERS      (BTA_DM_AUTH_FAIL_BASE + SMP_INVALID_PARAMETERS)
+#define BTA_DM_AUTH_SMP_INTERNAL_ERR            (BTA_DM_AUTH_FAIL_BASE + SMP_PAIR_INTERNAL_ERR)
+#define BTA_DM_AUTH_SMP_UNKNOWN_IO              (BTA_DM_AUTH_FAIL_BASE + SMP_UNKNOWN_IO_CAP)
+#define BTA_DM_AUTH_SMP_INIT_FAIL               (BTA_DM_AUTH_FAIL_BASE + SMP_INIT_FAIL)
+#define BTA_DM_AUTH_SMP_CONFIRM_FAIL            (BTA_DM_AUTH_FAIL_BASE + SMP_CONFIRM_FAIL)
+#define BTA_DM_AUTH_SMP_BUSY                    (BTA_DM_AUTH_FAIL_BASE + SMP_BUSY)
+#define BTA_DM_AUTH_SMP_ENC_FAIL                (BTA_DM_AUTH_FAIL_BASE + SMP_ENC_FAIL)
+#define BTA_DM_AUTH_SMP_RSP_TIMEOUT             (BTA_DM_AUTH_FAIL_BASE + SMP_RSP_TIMEOUT)
+
+/* connection parameter boundary value and dummy value */
+#define BTA_DM_BLE_SCAN_INT_MIN          BTM_BLE_SCAN_INT_MIN
+#define BTA_DM_BLE_SCAN_INT_MAX          BTM_BLE_SCAN_INT_MAX
+#define BTA_DM_BLE_SCAN_WIN_MIN          BTM_BLE_SCAN_WIN_MIN
+#define BTA_DM_BLE_SCAN_WIN_MAX          BTM_BLE_SCAN_WIN_MAX
+#define BTA_DM_BLE_CONN_INT_MIN          BTM_BLE_CONN_INT_MIN
+#define BTA_DM_BLE_CONN_INT_MAX          BTM_BLE_CONN_INT_MAX
+#define BTA_DM_BLE_CONN_LATENCY_MAX      BTM_BLE_CONN_LATENCY_MAX
+#define BTA_DM_BLE_CONN_SUP_TOUT_MIN     BTM_BLE_CONN_SUP_TOUT_MIN
+#define BTA_DM_BLE_CONN_SUP_TOUT_MAX     BTM_BLE_CONN_SUP_TOUT_MAX
+#define BTA_DM_BLE_CONN_PARAM_UNDEF      BTM_BLE_CONN_PARAM_UNDEF  /* use this value when a specific value not to be overwritten */
+
+
+#define BTA_LE_KEY_PENC      BTM_LE_KEY_PENC  /* encryption information of peer device */
+#define BTA_LE_KEY_PID       BTM_LE_KEY_PID   /* identity key of the peer device */
+#define BTA_LE_KEY_PCSRK     BTM_LE_KEY_PCSRK   /* peer SRK */
+#define BTA_LE_KEY_LENC      BTM_LE_KEY_LENC        /* master role security information:div */
+#define BTA_LE_KEY_LID       BTM_LE_KEY_LID         /* master device ID key */
+#define BTA_LE_KEY_LCSRK     BTM_LE_KEY_LCSRK        /* local CSRK has been deliver to peer */
+typedef UINT8 tBTA_LE_KEY_TYPE; /* can be used as a bit mask */
+
+
+typedef tBTM_LE_PENC_KEYS  tBTA_LE_PENC_KEYS ;
+typedef tBTM_LE_PCSRK_KEYS tBTA_LE_PCSRK_KEYS;
+typedef tBTM_LE_LENC_KEYS  tBTA_LE_LENC_KEYS  ;
+typedef tBTM_LE_LCSRK_KEYS tBTA_LE_LCSRK_KEYS ;
+typedef tBTM_LE_PID_KEYS   tBTA_LE_PID_KEYS ;
+
+typedef union
+{
+    tBTA_LE_PENC_KEYS   penc_key;       /* received peer encryption key */
+    tBTA_LE_PCSRK_KEYS  psrk_key;       /* received peer device SRK */
+    tBTA_LE_PID_KEYS    pid_key;        /* peer device ID key */
+    tBTA_LE_LENC_KEYS   lenc_key;       /* local encryption reproduction keys LTK = = d1(ER,DIV,0)*/
+    tBTA_LE_LCSRK_KEYS  lcsrk_key;      /* local device CSRK = d1(ER,DIV,1)*/
+    tBTA_LE_PID_KEYS    lid_key;        /* local device ID key for the particular remote */
+}tBTA_LE_KEY_VALUE;
+
+#define BTA_BLE_LOCAL_KEY_TYPE_ID         1
+#define BTA_BLE_LOCAL_KEY_TYPE_ER         2
+typedef UINT8 tBTA_DM_BLE_LOCAL_KEY_MASK;
+
+typedef struct
+{
+    BT_OCTET16       ir;
+    BT_OCTET16       irk;
+    BT_OCTET16       dhk;
+}tBTA_BLE_LOCAL_ID_KEYS;
+
+#define BTA_DM_SEC_GRANTED              BTA_SUCCESS
+#define BTA_DM_SEC_PAIR_NOT_SPT         BTA_DM_AUTH_SMP_PAIR_NOT_SUPPORT
+#define BTA_DM_SEC_REP_ATTEMPTS         BTA_DM_AUTH_SMP_REPEATED_ATTEMPT
+typedef UINT8 tBTA_DM_BLE_SEC_GRANT;
+
+
+#define BTA_DM_BLE_ONN_NONE             BTM_BLE_CONN_NONE
+#define BTA_DM_BLE_CONN_AUTO            BTM_BLE_CONN_AUTO
+#define BTA_DM_BLE_CONN_SELECTIVE       BTM_BLE_CONN_SELECTIVE
+typedef UINT8 tBTA_DM_BLE_CONN_TYPE;
+
+typedef BOOLEAN (tBTA_DM_BLE_SEL_CBACK)(BD_ADDR random_bda, UINT8 *p_remote_name);
+
+/* Structure associated with BTA_DM_BLE_SEC_REQ_EVT */
+typedef struct
+{
+    BD_ADDR         bd_addr;        /* peer address */
+    BD_NAME         bd_name;        /* peer device name */
+} tBTA_DM_BLE_SEC_REQ;
+
+typedef struct
+{
+    BD_ADDR                 bd_addr;        /* peer address */
+    tBTM_LE_KEY_TYPE        key_type;
+    tBTM_LE_KEY_VALUE       *p_key_value;
+}tBTA_DM_BLE_KEY;
+
+/* Structure associated with BTA_DM_AUTH_CMPL_EVT */
+typedef struct
+{
+    BD_ADDR         bd_addr;            /* BD address peer device. */
+    BD_NAME         bd_name;            /* Name of peer device. */
+    BOOLEAN         key_present;        /* Valid link key value in key element */
+    LINK_KEY        key;                /* Link key associated with peer device. */
+    UINT8           key_type;           /* The type of Link Key */
+    BOOLEAN         success;            /* TRUE of authentication succeeded, FALSE if failed. */
+    UINT8           fail_reason;        /* The HCI reason/error code for when success=FALSE */
+    tBLE_ADDR_TYPE  addr_type;          /* Peer device address type */
+    tBT_DEVICE_TYPE dev_type;
+} tBTA_DM_AUTH_CMPL;
+
+
+/* Structure associated with BTA_DM_AUTHORIZE_EVT */
+typedef struct
+{
+    BD_ADDR         bd_addr;            /* BD address peer device. */
+    BD_NAME         bd_name;            /* Name of peer device. */
+    tBTA_SERVICE_ID service;            /* Service ID to authorize. */
+    DEV_CLASS      dev_class;
+} tBTA_DM_AUTHORIZE;
+
+/* Structure associated with BTA_DM_LINK_UP_EVT */
+typedef struct
+{
+    BD_ADDR         bd_addr;            /* BD address peer device. */
+#if BLE_INCLUDED == TRUE
+    tBTA_TRANSPORT  link_type;
+#endif
+} tBTA_DM_LINK_UP;
+
+/* Structure associated with BTA_DM_LINK_DOWN_EVT */
+typedef struct
+{
+    BD_ADDR         bd_addr;            /* BD address peer device. */
+    UINT8           status;             /* connection open/closed */
+    BOOLEAN         is_removed;         /* TRUE if device is removed when link is down */
+#if BLE_INCLUDED == TRUE
+    tBTA_TRANSPORT  link_type;
+#endif
+} tBTA_DM_LINK_DOWN;
+
+/* Structure associated with BTA_DM_ROLE_CHG_EVT */
+typedef struct
+{
+    BD_ADDR         bd_addr;            /* BD address peer device. */
+    UINT8           new_role;           /* the new connection role */
+} tBTA_DM_ROLE_CHG;
+
+/* Structure associated with BTA_DM_BUSY_LEVEL_EVT */
+typedef struct
+{
+    UINT8           level;     /* when paging or inquiring, level is 10.
+                                    Otherwise, the number of ACL links */
+    UINT8           level_flags; /* indicates individual flags */
+} tBTA_DM_BUSY_LEVEL;
+
+#define BTA_IO_CAP_OUT      BTM_IO_CAP_OUT      /* 0 DisplayOnly */
+#define BTA_IO_CAP_IO       BTM_IO_CAP_IO       /* 1 DisplayYesNo */
+#define BTA_IO_CAP_IN       BTM_IO_CAP_IN       /* 2 KeyboardOnly */
+#define BTA_IO_CAP_NONE     BTM_IO_CAP_NONE     /* 3 NoInputNoOutput */
+#if BLE_INCLUDED == TRUE && SMP_INCLUDED == TRUE
+#define BTA_IO_CAP_KBDISP   BTM_IO_CAP_KBDISP   /* 4 Keyboard display */
+#endif
+typedef tBTM_IO_CAP     tBTA_IO_CAP;
+
+#define BTA_AUTH_SP_NO    BTM_AUTH_SP_NO      /* 0 MITM Protection Not Required - Single Profile/non-bonding
+                                                Numeric comparison with automatic accept allowed */
+#define BTA_AUTH_SP_YES   BTM_AUTH_SP_YES     /* 1 MITM Protection Required - Single Profile/non-bonding
+                                                Use IO Capabilities to determine authentication procedure */
+#define BTA_AUTH_AP_NO    BTM_AUTH_AP_NO      /* 2 MITM Protection Not Required - All Profiles/dedicated bonding
+                                                Numeric comparison with automatic accept allowed */
+#define BTA_AUTH_AP_YES   BTM_AUTH_AP_YES     /* 3 MITM Protection Required - All Profiles/dedicated bonding
+                                                Use IO Capabilities to determine authentication procedure */
+#define BTA_AUTH_SPGB_NO  BTM_AUTH_SPGB_NO    /* 4 MITM Protection Not Required - Single Profiles/general bonding
+                                                Numeric comparison with automatic accept allowed */
+#define BTA_AUTH_SPGB_YES BTM_AUTH_SPGB_YES   /* 5 MITM Protection Required - Single Profiles/general bonding
+                                                Use IO Capabilities to determine authentication procedure */
+typedef tBTM_AUTH_REQ   tBTA_AUTH_REQ;
+
+#define BTA_AUTH_DD_BOND    BTM_AUTH_DD_BOND  /* 2 this bit is set for dedicated bonding */
+#define BTA_AUTH_GEN_BOND   BTM_AUTH_SPGB_NO  /* 4 this bit is set for general bonding */
+#define BTA_AUTH_BONDS      BTM_AUTH_BONDS    /* 6 the general/dedicated bonding bits  */
+
+#define BTA_LE_AUTH_NO_BOND    BTM_LE_AUTH_REQ_NO_BOND  /* 0*/
+#define BTA_LE_AUTH_BOND       BTM_LE_AUTH_REQ_BOND     /* 1 << 0 */
+#define BTA_LE_AUTH_REQ_MITM   BTM_LE_AUTH_REQ_MITM    /* 1 << 2 */
+
+#define BTA_LE_AUTH_REQ_SC_ONLY         BTM_LE_AUTH_REQ_SC_ONLY         /* 1 << 3 */
+#define BTA_LE_AUTH_REQ_SC_BOND         BTM_LE_AUTH_REQ_SC_BOND      /* 1001 */
+#define BTA_LE_AUTH_REQ_SC_MITM         BTM_LE_AUTH_REQ_SC_MITM      /* 1100 */
+#define BTA_LE_AUTH_REQ_SC_MITM_BOND    BTM_LE_AUTH_REQ_SC_MITM_BOND /* 1101 */
+typedef tBTM_LE_AUTH_REQ       tBTA_LE_AUTH_REQ;       /* combination of the above bit pattern */
+
+#define BTA_OOB_NONE        BTM_OOB_NONE
+#define BTA_OOB_PRESENT     BTM_OOB_PRESENT
+#define BTA_OOB_UNKNOWN     BTM_OOB_UNKNOWN
+
+typedef tBTM_OOB_DATA   tBTA_OOB_DATA;
+
+/* Structure associated with BTA_DM_SP_CFM_REQ_EVT */
+typedef struct
+{
+    /* Note: First 3 data members must be, bd_addr, dev_class, and bd_name in order */
+    BD_ADDR         bd_addr;        /* peer address */
+    DEV_CLASS       dev_class;      /* peer CoD */
+    BD_NAME         bd_name;        /* peer device name */
+    UINT32          num_val;        /* the numeric value for comparison. If just_works, do not show this number to UI */
+    BOOLEAN         just_works;     /* TRUE, if "Just Works" association model */
+    tBTA_AUTH_REQ   loc_auth_req;   /* Authentication required for local device */
+    tBTA_AUTH_REQ   rmt_auth_req;   /* Authentication required for peer device */
+    tBTA_IO_CAP     loc_io_caps;    /* IO Capabilities of local device */
+    tBTA_AUTH_REQ   rmt_io_caps;    /* IO Capabilities of remote device */
+} tBTA_DM_SP_CFM_REQ;
+
+enum
+{
+    BTA_SP_KEY_STARTED,         /* passkey entry started */
+    BTA_SP_KEY_ENTERED,         /* passkey digit entered */
+    BTA_SP_KEY_ERASED,          /* passkey digit erased */
+    BTA_SP_KEY_CLEARED,         /* passkey cleared */
+    BTA_SP_KEY_COMPLT           /* passkey entry completed */
+};
+typedef UINT8   tBTA_SP_KEY_TYPE;
+
+/* Structure associated with BTA_DM_SP_KEYPRESS_EVT */
+typedef struct
+{
+    BD_ADDR             bd_addr;        /* peer address */
+    tBTA_SP_KEY_TYPE   notif_type;
+}tBTA_DM_SP_KEY_PRESS;
+
+/* Structure associated with BTA_DM_SP_KEY_NOTIF_EVT */
+typedef struct
+{
+    /* Note: First 3 data members must be, bd_addr, dev_class, and bd_name in order */
+    BD_ADDR         bd_addr;        /* peer address */
+    DEV_CLASS       dev_class;      /* peer CoD */
+    BD_NAME         bd_name;        /* peer device name */
+    UINT32          passkey;        /* the numeric value for comparison. If just_works, do not show this number to UI */
+} tBTA_DM_SP_KEY_NOTIF;
+
+/* Structure associated with BTA_DM_SP_RMT_OOB_EVT */
+typedef struct
+{
+    /* Note: First 3 data members must be, bd_addr, dev_class, and bd_name in order */
+    BD_ADDR         bd_addr;        /* peer address */
+    DEV_CLASS       dev_class;      /* peer CoD */
+    BD_NAME         bd_name;        /* peer device name */
+} tBTA_DM_SP_RMT_OOB;
+
+/* Structure associated with BTA_DM_BOND_CANCEL_CMPL_EVT */
+typedef struct
+{
+    tBTA_STATUS     result;    /* TRUE of bond cancel succeeded, FALSE if failed. */
+} tBTA_DM_BOND_CANCEL_CMPL;
+
+/* Union of all security callback structures */
+typedef union
+{
+    tBTA_DM_ENABLE      enable;         /* BTA enabled */
+    tBTA_DM_PIN_REQ     pin_req;        /* PIN request. */
+    tBTA_DM_AUTH_CMPL   auth_cmpl;      /* Authentication complete indication. */
+    tBTA_DM_AUTHORIZE   authorize;      /* Authorization request. */
+    tBTA_DM_LINK_UP     link_up;       /* ACL connection down event */
+    tBTA_DM_LINK_DOWN   link_down;       /* ACL connection down event */
+    tBTA_DM_BUSY_LEVEL  busy_level;     /* System busy level */
+    tBTA_DM_SP_CFM_REQ  cfm_req;        /* user confirm request */
+    tBTA_DM_SP_KEY_NOTIF key_notif;     /* passkey notification */
+    tBTA_DM_SP_RMT_OOB  rmt_oob;        /* remote oob */
+    tBTA_DM_BOND_CANCEL_CMPL bond_cancel_cmpl; /* Bond Cancel Complete indication */
+    tBTA_DM_SP_KEY_PRESS   key_press;   /* key press notification event */
+    tBTA_DM_ROLE_CHG     role_chg;       /* role change event */
+    tBTA_DM_BLE_SEC_REQ  ble_req;        /* BLE SMP related request */
+    tBTA_DM_BLE_KEY      ble_key;        /* BLE SMP keys used when pairing */
+    tBTA_BLE_LOCAL_ID_KEYS  ble_id_keys;  /* IR event */
+    BT_OCTET16              ble_er;       /* ER event data */
+} tBTA_DM_SEC;
+
+/* Security callback */
+typedef void (tBTA_DM_SEC_CBACK)(tBTA_DM_SEC_EVT event, tBTA_DM_SEC *p_data);
+
+#define BTA_BLE_MULTI_ADV_ILLEGAL 0
+
+/* multi adv callback event */
+#define BTA_BLE_MULTI_ADV_ENB_EVT           1
+#define BTA_BLE_MULTI_ADV_DISABLE_EVT       2
+#define BTA_BLE_MULTI_ADV_PARAM_EVT         3
+#define BTA_BLE_MULTI_ADV_DATA_EVT          4
+
+typedef UINT8 tBTA_BLE_MULTI_ADV_EVT;
+
+/* multi adv callback */
+typedef void (tBTA_BLE_MULTI_ADV_CBACK)(tBTA_BLE_MULTI_ADV_EVT event,
+                                        UINT8 inst_id, void *p_ref, tBTA_STATUS status);
+typedef UINT32 tBTA_DM_BLE_REF_VALUE;
+
+#define BTA_DM_BLE_PF_ENABLE_EVT       BTM_BLE_PF_ENABLE
+#define BTA_DM_BLE_PF_CONFIG_EVT       BTM_BLE_PF_CONFIG
+typedef UINT8 tBTA_DM_BLE_PF_EVT;
+
+#define BTA_DM_BLE_PF_ENABLE       1
+#define BTA_DM_BLE_PF_CONFIG       2
+typedef UINT8 tBTA_DM_BLE_PF_ACTION;
+
+/* Config callback */
+typedef void (tBTA_DM_BLE_PF_CFG_CBACK) (tBTA_DM_BLE_PF_ACTION action,
+                                         tBTA_DM_BLE_PF_COND_TYPE cfg_cond,
+                                         tBTA_DM_BLE_PF_AVBL_SPACE avbl_space, tBTA_STATUS status,
+                                         tBTA_DM_BLE_REF_VALUE ref_value);
+/* Param callback */
+typedef void (tBTA_DM_BLE_PF_PARAM_CBACK) (UINT8 action_type, tBTA_DM_BLE_PF_AVBL_SPACE avbl_space,
+                                           tBTA_DM_BLE_REF_VALUE ref_value, tBTA_STATUS status);
+
+/* Status callback */
+typedef void (tBTA_DM_BLE_PF_STATUS_CBACK) (UINT8 action, tBTA_STATUS status,
+                                            tBTA_DM_BLE_REF_VALUE ref_value);
+
+
+#define BTA_DM_BLE_PF_BRDCAST_ADDR_FILT  1
+#define BTA_DM_BLE_PF_SERV_DATA_CHG_FILT 2
+#define BTA_DM_BLE_PF_SERV_UUID          4
+#define BTA_DM_BLE_PF_SERV_SOLC_UUID     8
+#define BTA_DM_BLE_PF_LOC_NAME_CHECK    16
+#define BTA_DM_BLE_PF_MANUF_NAME_CHECK  32
+#define BTA_DM_BLE_PF_SERV_DATA_CHECK   64
+typedef UINT16 tBTA_DM_BLE_PF_FEAT_SEL;
+
+#define BTA_DM_BLE_PF_LIST_LOGIC_OR   1
+#define BTA_DM_BLE_PF_LIST_LOGIC_AND  2
+typedef UINT16 tBTA_DM_BLE_PF_LIST_LOGIC_TYPE;
+
+#define BTA_DM_BLE_PF_FILT_LOGIC_OR   0
+#define BTA_DM_BLE_PF_FILT_LOGIC_AND  1
+typedef UINT16 tBTA_DM_BLE_PF_FILT_LOGIC_TYPE;
+
+typedef UINT8  tBTA_DM_BLE_PF_RSSI_THRESHOLD;
+typedef UINT8  tBTA_DM_BLE_PF_DELIVERY_MODE;
+typedef UINT16 tBTA_DM_BLE_PF_TIMEOUT;
+typedef UINT8  tBTA_DM_BLE_PF_TIMEOUT_CNT;
+typedef UINT16 tBTA_DM_BLE_PF_ADV_TRACK_ENTRIES;
+
+typedef struct
+{
+    tBTA_DM_BLE_PF_FEAT_SEL feat_seln;
+    tBTA_DM_BLE_PF_LIST_LOGIC_TYPE list_logic_type;
+    tBTA_DM_BLE_PF_FILT_LOGIC_TYPE filt_logic_type;
+    tBTA_DM_BLE_PF_RSSI_THRESHOLD  rssi_high_thres;
+    tBTA_DM_BLE_PF_RSSI_THRESHOLD  rssi_low_thres;
+    tBTA_DM_BLE_PF_DELIVERY_MODE dely_mode;
+    tBTA_DM_BLE_PF_TIMEOUT found_timeout;
+    tBTA_DM_BLE_PF_TIMEOUT lost_timeout;
+    tBTA_DM_BLE_PF_TIMEOUT_CNT found_timeout_cnt;
+    tBTA_DM_BLE_PF_ADV_TRACK_ENTRIES num_of_tracking_entries;
+} tBTA_DM_BLE_PF_FILT_PARAMS;
+
+/* Search callback events */
+#define BTA_DM_INQ_RES_EVT              0       /* Inquiry result for a peer device. */
+#define BTA_DM_INQ_CMPL_EVT             1       /* Inquiry complete. */
+#define BTA_DM_DISC_RES_EVT             2       /* Discovery result for a peer device. */
+#define BTA_DM_DISC_BLE_RES_EVT         3       /* Discovery result for BLE GATT based servoce on a peer device. */
+#define BTA_DM_DISC_CMPL_EVT            4       /* Discovery complete. */
+#define BTA_DM_DI_DISC_CMPL_EVT         5       /* Discovery complete. */
+#define BTA_DM_SEARCH_CANCEL_CMPL_EVT   6       /* Search cancelled */
+#ifdef BLUETOOTH_RTK
+#define BTA_DM_DISC_NAME_EVT            20
+#endif
+
+typedef UINT8 tBTA_DM_SEARCH_EVT;
+
+#define BTA_DM_INQ_RES_IGNORE_RSSI      BTM_INQ_RES_IGNORE_RSSI /* 0x7f RSSI value not supplied (ignore it) */
+
+/* Structure associated with BTA_DM_INQ_RES_EVT */
+typedef struct
+{
+    BD_ADDR         bd_addr;                /* BD address peer device. */
+    DEV_CLASS       dev_class;              /* Device class of peer device. */
+    BOOLEAN         remt_name_not_required; /* Application sets this flag if it already knows the name of the device */
+                                            /* If the device name is known to application BTA skips the remote name request */
+    BOOLEAN         is_limited;             /* TRUE, if the limited inquiry bit is set in the CoD */
+    INT8            rssi;                   /* The rssi value */
+    UINT8           *p_eir;                 /* received EIR */
+#if (BLE_INCLUDED == TRUE)
+    UINT8               inq_result_type;
+    UINT8               ble_addr_type;
+    tBTM_BLE_EVT_TYPE   ble_evt_type;
+    tBT_DEVICE_TYPE     device_type;
+    UINT8               flag;
+#endif
+
+} tBTA_DM_INQ_RES;
+
+/* Structure associated with BTA_DM_INQ_CMPL_EVT */
+typedef struct
+{
+    UINT8           num_resps;          /* Number of inquiry responses. */
+} tBTA_DM_INQ_CMPL;
+
+/* Structure associated with BTA_DM_DI_DISC_CMPL_EVT */
+typedef struct
+{
+    BD_ADDR             bd_addr;        /* BD address peer device. */
+    UINT8               num_record;     /* Number of DI record */
+    tBTA_STATUS         result;
+} tBTA_DM_DI_DISC_CMPL;
+
+/* Structure associated with BTA_DM_DISC_RES_EVT */
+typedef struct
+{
+    BD_ADDR             bd_addr;        /* BD address peer device. */
+    BD_NAME             bd_name;        /* Name of peer device. */
+    tBTA_SERVICE_MASK   services;       /* Services found on peer device. */
+    UINT8           *   p_raw_data;     /* Raw data for discovery DB */
+    UINT32              raw_data_size;  /* size of raw data */
+    tBT_DEVICE_TYPE     device_type;    /* device type in case it is BLE device */
+    UINT32              num_uuids;
+    UINT8               *p_uuid_list;
+    tBTA_STATUS         result;
+} tBTA_DM_DISC_RES;
+
+/* Structure associated with tBTA_DM_DISC_BLE_RES */
+typedef struct
+{
+    BD_ADDR             bd_addr;        /* BD address peer device. */
+    BD_NAME             bd_name;        /* Name of peer device. */
+    tBT_UUID            service;        /* GATT based Services UUID found on peer device. */
+} tBTA_DM_DISC_BLE_RES;
+
+
+/* Union of all search callback structures */
+typedef union
+{
+    tBTA_DM_INQ_RES     inq_res;        /* Inquiry result for a peer device. */
+    tBTA_DM_INQ_CMPL    inq_cmpl;       /* Inquiry complete. */
+    tBTA_DM_DISC_RES    disc_res;       /* Discovery result for a peer device. */
+    tBTA_DM_DISC_BLE_RES    disc_ble_res;   /* discovery result for GATT based service */
+    tBTA_DM_DI_DISC_CMPL    di_disc;        /* DI discovery result for a peer device */
+
+} tBTA_DM_SEARCH;
+
+/* Search callback */
+typedef void (tBTA_DM_SEARCH_CBACK)(tBTA_DM_SEARCH_EVT event, tBTA_DM_SEARCH *p_data);
+
+/* Execute call back */
+typedef void (tBTA_DM_EXEC_CBACK) (void * p_param);
+
+/* Encryption callback*/
+typedef void (tBTA_DM_ENCRYPT_CBACK) (BD_ADDR bd_addr, tBTA_TRANSPORT transport, tBTA_STATUS result);
+
+#define BTA_DM_BLE_SEC_NONE         BTM_BLE_SEC_NONE
+#define BTA_DM_BLE_SEC_ENCRYPT      BTM_BLE_SEC_ENCRYPT
+#define BTA_DM_BLE_SEC_NO_MITM      BTM_BLE_SEC_ENCRYPT_NO_MITM
+#define BTA_DM_BLE_SEC_MITM         BTM_BLE_SEC_ENCRYPT_MITM
+typedef tBTM_BLE_SEC_ACT            tBTA_DM_BLE_SEC_ACT;
+
+#if BLE_INCLUDED == TRUE
+typedef tBTM_BLE_TX_TIME_MS         tBTA_DM_BLE_TX_TIME_MS;
+typedef tBTM_BLE_RX_TIME_MS         tBTA_DM_BLE_RX_TIME_MS;
+typedef tBTM_BLE_IDLE_TIME_MS       tBTA_DM_BLE_IDLE_TIME_MS;
+typedef tBTM_BLE_ENERGY_USED        tBTA_DM_BLE_ENERGY_USED;
+
+#define BTA_DM_CONTRL_UNKNOWN 0       /* Unknown state */
+#define BTA_DM_CONTRL_ACTIVE  1       /* ACL link on, SCO link ongoing, sniff mode */
+#define BTA_DM_CONTRL_SCAN    2       /* Scan state - paging/inquiry/trying to connect*/
+#define BTA_DM_CONTRL_IDLE    3       /* Idle state - page scan, LE advt, inquiry scan */
+
+typedef UINT8 tBTA_DM_CONTRL_STATE;
+
+typedef UINT8 tBTA_DM_BLE_ADV_STATE;
+typedef UINT8 tBTA_DM_BLE_ADV_INFO_PRESENT;
+typedef UINT8 tBTA_DM_BLE_RSSI_VALUE;
+typedef UINT16 tBTA_DM_BLE_ADV_INFO_TIMESTAMP;
+
+typedef tBTM_BLE_TRACK_ADV_DATA tBTA_DM_BLE_TRACK_ADV_DATA;
+
+typedef void (tBTA_BLE_SCAN_THRESHOLD_CBACK)(tBTA_DM_BLE_REF_VALUE ref_value);
+
+typedef void (tBTA_BLE_SCAN_REP_CBACK) (tBTA_DM_BLE_REF_VALUE ref_value, UINT8 report_format,
+                                        UINT8 num_records, UINT16 data_len,
+                                        UINT8* p_rep_data, tBTA_STATUS status);
+
+typedef void (tBTA_BLE_SCAN_SETUP_CBACK) (tBTA_BLE_BATCH_SCAN_EVT evt,
+                                          tBTA_DM_BLE_REF_VALUE ref_value,
+                                          tBTA_STATUS status);
+
+typedef void (tBTA_BLE_TRACK_ADV_CMPL_CBACK)(int action, tBTA_STATUS status,
+                                             tBTA_DM_BLE_PF_AVBL_SPACE avbl_space,
+                                             tBTA_DM_BLE_REF_VALUE ref_value);
+
+typedef void (tBTA_BLE_TRACK_ADV_CBACK)(tBTA_DM_BLE_TRACK_ADV_DATA *p_adv_data);
+
+typedef void (tBTA_BLE_ENERGY_INFO_CBACK)(tBTA_DM_BLE_TX_TIME_MS tx_time,
+                                          tBTA_DM_BLE_RX_TIME_MS rx_time,
+                                          tBTA_DM_BLE_IDLE_TIME_MS idle_time,
+                                          tBTA_DM_BLE_ENERGY_USED  energy_used,
+                                          tBTA_DM_CONTRL_STATE ctrl_state,
+                                          tBTA_STATUS status);
+
+#else
+typedef UINT8                       tBTA_DM_BLE_SEC_ACT;
+#endif
+
+/* Maximum service name length */
+#define BTA_SERVICE_NAME_LEN    35
+#define BTA_SERVICE_DESP_LEN    BTA_SERVICE_NAME_LEN
+#define BTA_PROVIDER_NAME_LEN   BTA_SERVICE_NAME_LEN
+
+
+/* link policy masks  */
+#define BTA_DM_LP_SWITCH        HCI_ENABLE_MASTER_SLAVE_SWITCH
+#define BTA_DM_LP_HOLD          HCI_ENABLE_HOLD_MODE
+#define BTA_DM_LP_SNIFF         HCI_ENABLE_SNIFF_MODE
+#define BTA_DM_LP_PARK          HCI_ENABLE_PARK_MODE
+typedef UINT16 tBTA_DM_LP_MASK;
+
+/* power mode actions  */
+#define BTA_DM_PM_NO_ACTION    0x00       /* no change to the current pm setting */
+#define BTA_DM_PM_PARK         0x10       /* prefers park mode */
+#define BTA_DM_PM_SNIFF        0x20       /* prefers sniff mode */
+#define BTA_DM_PM_SNIFF1       0x21       /* prefers sniff1 mode */
+#define BTA_DM_PM_SNIFF2       0x22       /* prefers sniff2 mode */
+#define BTA_DM_PM_SNIFF3       0x23       /* prefers sniff3 mode */
+#define BTA_DM_PM_SNIFF4       0x24       /* prefers sniff4 mode */
+#define BTA_DM_PM_SNIFF5       0x25       /* prefers sniff5 mode */
+#define BTA_DM_PM_SNIFF6       0x26       /* prefers sniff6 mode */
+#define BTA_DM_PM_SNIFF7       0x27       /* prefers sniff7 mode */
+#define BTA_DM_PM_SNIFF_USER0  0x28       /* prefers user-defined sniff0 mode (testtool only) */
+#define BTA_DM_PM_SNIFF_USER1  0x29       /* prefers user-defined sniff1 mode (testtool only) */
+#define BTA_DM_PM_ACTIVE       0x40       /* prefers active mode */
+#define BTA_DM_PM_RETRY        0x80       /* retry power mode based on current settings */
+#define BTA_DM_PM_SUSPEND      0x04       /* prefers suspend mode */
+#define BTA_DM_PM_NO_PREF      0x01       /* service has no prefernce on power mode setting. eg. connection to service got closed */
+
+typedef UINT8 tBTA_DM_PM_ACTION;
+
+/* index to bta_dm_ssr_spec */
+#define BTA_DM_PM_SSR0          0
+#define BTA_DM_PM_SSR1          1       /* BTA_DM_PM_SSR1 will be dedicated for
+                                        HH SSR setting entry, no other profile can use it */
+#define BTA_DM_PM_SSR2          2
+#define BTA_DM_PM_SSR3          3
+#define BTA_DM_PM_SSR4          4
+#define BTA_DM_PM_SSR5          5
+#define BTA_DM_PM_SSR6          6
+
+#define BTA_DM_PM_NUM_EVTS      9
+
+#ifndef BTA_DM_PM_PARK_IDX
+#define BTA_DM_PM_PARK_IDX      5 /* the actual index to bta_dm_pm_md[] for PARK mode */
+#endif
+
+#ifndef BTA_DM_PM_SNIFF_A2DP_IDX
+#define BTA_DM_PM_SNIFF_A2DP_IDX      BTA_DM_PM_SNIFF
+#endif
+
+#ifndef BTA_DM_PM_SNIFF_HD_IDLE_IDX
+#define BTA_DM_PM_SNIFF_HD_IDLE_IDX   BTA_DM_PM_SNIFF2
+#endif
+
+#ifndef BTA_DM_PM_SNIFF_SCO_OPEN_IDX
+#define BTA_DM_PM_SNIFF_SCO_OPEN_IDX  BTA_DM_PM_SNIFF3
+#endif
+
+#ifndef BTA_DM_PM_SNIFF_HD_ACTIVE_IDX
+#define BTA_DM_PM_SNIFF_HD_ACTIVE_IDX BTA_DM_PM_SNIFF4
+#endif
+
+#ifndef BTA_DM_PM_SNIFF_HH_OPEN_IDX
+#define BTA_DM_PM_SNIFF_HH_OPEN_IDX BTA_DM_PM_SNIFF2
+#endif
+
+#ifndef BTA_DM_PM_SNIFF_HH_ACTIVE_IDX
+#define BTA_DM_PM_SNIFF_HH_ACTIVE_IDX BTA_DM_PM_SNIFF2
+#endif
+
+#ifndef BTA_DM_PM_SNIFF_HH_IDLE_IDX
+#define BTA_DM_PM_SNIFF_HH_IDLE_IDX BTA_DM_PM_SNIFF2
+#endif
+
+
+#ifndef BTA_DM_PM_HH_OPEN_DELAY
+#define BTA_DM_PM_HH_OPEN_DELAY 30000
+#endif
+
+#ifndef BTA_DM_PM_HH_ACTIVE_DELAY
+#define BTA_DM_PM_HH_ACTIVE_DELAY 30000
+#endif
+
+#ifndef BTA_DM_PM_HH_IDLE_DELAY
+#define BTA_DM_PM_HH_IDLE_DELAY 30000
+#endif
+
+/* The Sniff Parameters defined below must be ordered from highest
+ * latency (biggest interval) to lowest latency.  If there is a conflict
+ * among the connected services the setting with the lowest latency will
+ * be selected.  If a device should override a sniff parameter then it
+ * must insure that order is maintained.
+ */
+#ifndef BTA_DM_PM_SNIFF_MAX
+#define BTA_DM_PM_SNIFF_MAX      800
+#define BTA_DM_PM_SNIFF_MIN      400
+#define BTA_DM_PM_SNIFF_ATTEMPT  4
+#define BTA_DM_PM_SNIFF_TIMEOUT  1
+#endif
+
+#ifndef BTA_DM_PM_SNIFF1_MAX
+#define BTA_DM_PM_SNIFF1_MAX     400
+#define BTA_DM_PM_SNIFF1_MIN     200
+#define BTA_DM_PM_SNIFF1_ATTEMPT 4
+#define BTA_DM_PM_SNIFF1_TIMEOUT 1
+#endif
+
+#ifndef BTA_DM_PM_SNIFF2_MAX
+#define BTA_DM_PM_SNIFF2_MAX     180
+#define BTA_DM_PM_SNIFF2_MIN     150
+#define BTA_DM_PM_SNIFF2_ATTEMPT 4
+#define BTA_DM_PM_SNIFF2_TIMEOUT 1
+#endif
+
+#ifndef BTA_DM_PM_SNIFF3_MAX
+#define BTA_DM_PM_SNIFF3_MAX     150
+#define BTA_DM_PM_SNIFF3_MIN     50
+#define BTA_DM_PM_SNIFF3_ATTEMPT 4
+#define BTA_DM_PM_SNIFF3_TIMEOUT 1
+#endif
+
+#ifndef BTA_DM_PM_SNIFF4_MAX
+#define BTA_DM_PM_SNIFF4_MAX     54
+#define BTA_DM_PM_SNIFF4_MIN     30
+#define BTA_DM_PM_SNIFF4_ATTEMPT 4
+#define BTA_DM_PM_SNIFF4_TIMEOUT 1
+#endif
+
+#ifndef BTA_DM_PM_SNIFF5_MAX
+#define BTA_DM_PM_SNIFF5_MAX     36
+#define BTA_DM_PM_SNIFF5_MIN     30
+#define BTA_DM_PM_SNIFF5_ATTEMPT 2
+#define BTA_DM_PM_SNIFF5_TIMEOUT 0
+#endif
+
+#ifndef BTA_DM_PM_PARK_MAX
+#define BTA_DM_PM_PARK_MAX       800
+#define BTA_DM_PM_PARK_MIN       400
+#define BTA_DM_PM_PARK_ATTEMPT   0
+#define BTA_DM_PM_PARK_TIMEOUT   0
+#endif
+
+
+/* Switch callback events */
+#define BTA_DM_SWITCH_CMPL_EVT      0       /* Completion of the Switch API */
+
+typedef UINT8 tBTA_DM_SWITCH_EVT;
+typedef void (tBTA_DM_SWITCH_CBACK)(tBTA_DM_SWITCH_EVT event, tBTA_STATUS status);
+
+/* Audio routing out configuration */
+#define BTA_DM_ROUTE_NONE       0x00    /* No Audio output */
+#define BTA_DM_ROUTE_DAC        0x01    /* routing over analog output */
+#define BTA_DM_ROUTE_I2S        0x02    /* routing over digital (I2S) output */
+#define BTA_DM_ROUTE_BT_MONO    0x04    /* routing over SCO */
+#define BTA_DM_ROUTE_BT_STEREO  0x08    /* routing over BT Stereo */
+#define BTA_DM_ROUTE_HOST       0x10    /* routing over Host */
+#define BTA_DM_ROUTE_FMTX       0x20    /* routing over FMTX */
+#define BTA_DM_ROUTE_FMRX       0x40    /* routing over FMRX */
+#define BTA_DM_ROUTE_BTSNK      0x80    /* routing over BT SNK */
+
+typedef UINT8 tBTA_DM_ROUTE_PATH;
+
+
+/* Device Identification (DI) data structure
+*/
+/* Used to set the DI record */
+typedef tSDP_DI_RECORD          tBTA_DI_RECORD;
+/* Used to get the DI record */
+typedef tSDP_DI_GET_RECORD      tBTA_DI_GET_RECORD;
+/* SDP discovery database */
+typedef tSDP_DISCOVERY_DB       tBTA_DISCOVERY_DB;
+
+#ifndef         BTA_DI_NUM_MAX
+#define         BTA_DI_NUM_MAX       3
+#endif
+
+/* Device features mask definitions */
+#define BTA_FEATURE_BYTES_PER_PAGE  BTM_FEATURE_BYTES_PER_PAGE
+#define BTA_EXT_FEATURES_PAGE_MAX   BTM_EXT_FEATURES_PAGE_MAX
+/* ACL type
+*/
+#define BTA_DM_LINK_TYPE_BR_EDR    0x01
+#define BTA_DM_LINK_TYPE_LE        0x02
+#define BTA_DM_LINK_TYPE_ALL       0xFF
+typedef UINT8 tBTA_DM_LINK_TYPE;
+
+#define IMMEDIATE_DELY_MODE  0x00
+#define ONFOUND_DELY_MODE    0x01
+#define BATCH_DELY_MODE      0x02
+#define ALLOW_ALL_FILTER     0x00
+#define LOWEST_RSSI_VALUE     129
+
+/*****************************************************************************
+**  External Function Declarations
+*****************************************************************************/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+/*******************************************************************************
+**
+** Function         BTA_EnableBluetooth
+**
+** Description      This function initializes BTA and prepares BTA and the
+**                  Bluetooth protocol stack for use.  This function is
+**                  typically called at startup or when Bluetooth services
+**                  are required by the phone.  This function must be called
+**                  before calling any other API function.
+**
+**
+** Returns          BTA_SUCCESS if successful.
+**                  BTA_FAIL if internal failure.
+**
+*******************************************************************************/
+extern tBTA_STATUS BTA_EnableBluetooth(tBTA_DM_SEC_CBACK *p_cback);
+
+/*******************************************************************************
+**
+** Function         BTA_DisableBluetooth
+**
+** Description      This function disables BTA and the Bluetooth protocol
+**                  stack.  It is called when BTA is no longer being used
+**                  by any application in the system.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+extern tBTA_STATUS BTA_DisableBluetooth(void);
+
+/*******************************************************************************
+**
+** Function         BTA_EnableTestMode
+**
+** Description      Enables bluetooth device under test mode
+**
+**
+** Returns          tBTA_STATUS
+**
+*******************************************************************************/
+extern tBTA_STATUS BTA_EnableTestMode(void);
+
+/*******************************************************************************
+**
+** Function         BTA_DisableTestMode
+**
+** Description      Disable bluetooth device under test mode
+**
+**
+** Returns          None
+**
+*******************************************************************************/
+extern void BTA_DisableTestMode(void);
+
+/*******************************************************************************
+**
+** Function         BTA_DmSetDeviceName
+**
+** Description      This function sets the Bluetooth name of the local device.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_DmSetDeviceName(char *p_name);
+
+/*******************************************************************************
+**
+** Function         BTA_DmSetVisibility
+**
+** Description      This function sets the Bluetooth connectable,discoverable,
+**                  pairable and conn paired only modesmodes of the local device.
+**                  This controls whether other Bluetooth devices can find and connect to
+**                  the local device.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_DmSetVisibility(tBTA_DM_DISC disc_mode, tBTA_DM_CONN conn_mode, UINT8 pairable_mode, UINT8 conn_filter);
+
+/*******************************************************************************
+**
+** Function         BTA_DmSearch
+**
+** Description      This function searches for peer Bluetooth devices.  It
+**                  first performs an inquiry; for each device found from the
+**                  inquiry it gets the remote name of the device.  If
+**                  parameter services is nonzero, service discovery will be
+**                  performed on each device for the services specified.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_DmSearch(tBTA_DM_INQ *p_dm_inq, tBTA_SERVICE_MASK services,
+                         tBTA_DM_SEARCH_CBACK *p_cback);
+
+/*******************************************************************************
+**
+** Function         BTA_DmSearchCancel
+**
+** Description      This function cancels a search that has been initiated
+**                  by calling BTA_DmSearch().
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_DmSearchCancel(void);
+
+/*******************************************************************************
+**
+** Function         BTA_DmDiscover
+**
+** Description      This function performs service discovery for the services
+**                  of a particular peer device.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_DmDiscover(BD_ADDR bd_addr, tBTA_SERVICE_MASK services,
+                           tBTA_DM_SEARCH_CBACK *p_cback, BOOLEAN sdp_search);
+
+/*******************************************************************************
+**
+** Function         BTA_DmDiscoverUUID
+**
+** Description      This function performs service discovery for the services
+**                  of a particular peer device.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_DmDiscoverUUID(BD_ADDR bd_addr, tSDP_UUID *uuid,
+                               tBTA_DM_SEARCH_CBACK *p_cback, BOOLEAN sdp_search);
+
+/*******************************************************************************
+**
+** Function         BTA_DmGetCachedRemoteName
+**
+** Description      Retieve cached remote name if available
+**
+** Returns          BTA_SUCCESS if cached name was retrieved
+**                  BTA_FAILURE if cached name is not available
+**
+*******************************************************************************/
+tBTA_STATUS BTA_DmGetCachedRemoteName(BD_ADDR remote_device, UINT8 **pp_cached_name);
+
+/*******************************************************************************
+**
+** Function         BTA_DmBond
+**
+** Description      This function initiates a bonding procedure with a peer
+**                  device.  The bonding procedure enables authentication
+**                  and optionally encryption on the Bluetooth link.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_DmBond(BD_ADDR bd_addr);
+
+/*******************************************************************************
+**
+** Function         BTA_DmBondByTransport
+**
+** Description      This function initiates a bonding procedure with a peer
+**                  device by designated transport.  The bonding procedure enables
+**                  authentication and optionally encryption on the Bluetooth link.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_DmBondByTransport(BD_ADDR bd_addr, tBTA_TRANSPORT transport);
+
+
+/*******************************************************************************
+**
+** Function         BTA_DmBondCancel
+**
+** Description      This function cancels a bonding procedure with a peer
+**                  device.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_DmBondCancel(BD_ADDR bd_addr);
+
+/*******************************************************************************
+**
+** Function         BTA_DmPinReply
+**
+** Description      This function provides a PIN when one is requested by DM
+**                  during a bonding procedure.  The application should call
+**                  this function after the security callback is called with
+**                  a BTA_DM_PIN_REQ_EVT.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_DmPinReply(BD_ADDR bd_addr, BOOLEAN accept, UINT8 pin_len,
+                           UINT8 *p_pin);
+
+/*******************************************************************************
+**
+** Function         BTA_DmLocalOob
+**
+** Description      This function retrieves the OOB data from local controller.
+**                  The result is reported by bta_dm_co_loc_oob().
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_DmLocalOob(void);
+
+/*******************************************************************************
+**
+** Function         BTA_DmConfirm
+**
+** Description      This function accepts or rejects the numerical value of the
+**                  Simple Pairing process on BTA_DM_SP_CFM_REQ_EVT
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_DmConfirm(BD_ADDR bd_addr, BOOLEAN accept);
+
+/*******************************************************************************
+**
+** Function         BTA_DmAddDevice
+**
+** Description      This function adds a device to the security database list
+**                  of peer devices. This function would typically be called
+**                  at system startup to initialize the security database with
+**                  known peer devices.  This is a direct execution function
+**                  that may lock task scheduling on some platforms.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_DmAddDevice(BD_ADDR bd_addr, DEV_CLASS dev_class,
+                            LINK_KEY link_key, tBTA_SERVICE_MASK trusted_mask,
+                            BOOLEAN is_trusted, UINT8 key_type,
+                            tBTA_IO_CAP io_cap, UINT8 pin_length);
+
+/*******************************************************************************
+**
+** Function         BTA_DmRemoveDevice
+**
+** Description      This function removes a device from the security database.
+**                  This is a direct execution function that may lock task
+**                  scheduling on some platforms.
+**
+**
+** Returns          BTA_SUCCESS if successful.
+**                  BTA_FAIL if operation failed.
+**
+*******************************************************************************/
+extern tBTA_STATUS BTA_DmRemoveDevice(BD_ADDR bd_addr);
+
+/*******************************************************************************
+**
+** Function         BTA_GetEirService
+**
+** Description      This function is called to get BTA service mask from EIR.
+**
+** Parameters       p_eir - pointer of EIR significant part
+**                  p_services - return the BTA service mask
+**
+** Returns          None
+**
+*******************************************************************************/
+extern void BTA_GetEirService( UINT8 *p_eir, tBTA_SERVICE_MASK *p_services );
+
+/*******************************************************************************
+**
+** Function         BTA_DmGetConnectionState
+**
+** Description      Returns whether the remote device is currently connected.
+**
+** Returns          0 if the device is NOT connected.
+**
+*******************************************************************************/
+extern UINT16 BTA_DmGetConnectionState( BD_ADDR bd_addr );
+
+
+/*******************************************************************************
+**
+** Function         BTA_DmSetLocalDiRecord
+**
+** Description      This function adds a DI record to the local SDP database.
+**
+** Returns          BTA_SUCCESS if record set sucessfully, otherwise error code.
+**
+*******************************************************************************/
+extern tBTA_STATUS BTA_DmSetLocalDiRecord( tBTA_DI_RECORD *p_device_info,
+                                           UINT32 *p_handle );
+
+/*******************************************************************************
+**
+**
+** Function         BTA_DmCloseACL
+**
+** Description      This function force to close an ACL connection and remove the
+**                  device from the security database list of known devices.
+**
+** Parameters:      bd_addr       - Address of the peer device
+**                  remove_dev    - remove device or not after link down
+**                  transport     - which transport to close
+
+**
+** Returns          void.
+**
+*******************************************************************************/
+extern void BTA_DmCloseACL(BD_ADDR bd_addr, BOOLEAN remove_dev, tBTA_TRANSPORT transport);
+
+/*******************************************************************************
+**
+** Function         bta_dmexecutecallback
+**
+** Description      This function will request BTA to execute a call back in the context of BTU task
+**                  This API was named in lower case because it is only intended
+**                  for the internal customers(like BTIF).
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void bta_dmexecutecallback (tBTA_DM_EXEC_CBACK* p_callback, void * p_param);
+
+#if (BTM_SCO_HCI_INCLUDED == TRUE)
+/*******************************************************************************
+**
+** Function         BTA_DmPcmInitSamples
+**
+** Description      initialize the down sample converter.
+**
+**                  src_sps: original samples per second (source audio data)
+**                            (ex. 44100, 48000)
+**                  bits: number of bits per pcm sample (16)
+**                  n_channels: number of channels (i.e. mono(1), stereo(2)...)
+**
+** Returns          none
+**
+*******************************************************************************/
+extern void BTA_DmPcmInitSamples (UINT32 src_sps, UINT32 bits, UINT32 n_channels);
+
+/**************************************************************************************
+** Function         BTA_DmPcmResample
+**
+** Description      Down sampling utility to convert higher sampling rate into 8K/16bits
+**                  PCM samples.
+**
+** Parameters       p_src: pointer to the buffer where the original sampling PCM
+**                              are stored.
+**                  in_bytes:  Length of the input PCM sample buffer in byte.
+**                  p_dst:      pointer to the buffer which is to be used to store
+**                              the converted PCM samples.
+**
+**
+** Returns          INT32: number of samples converted.
+**
+**************************************************************************************/
+extern INT32 BTA_DmPcmResample (void *p_src, UINT32 in_bytes, void *p_dst);
+#endif
+
+#if ((defined BLE_INCLUDED) && (BLE_INCLUDED == TRUE))
+/* BLE related API functions */
+/*******************************************************************************
+**
+** Function         BTA_DmBleSecurityGrant
+**
+** Description      Grant security request access.
+**
+** Parameters:      bd_addr          - BD address of the peer
+**                  res              - security grant status.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_DmBleSecurityGrant(BD_ADDR bd_addr, tBTA_DM_BLE_SEC_GRANT res);
+
+
+
+/*******************************************************************************
+**
+** Function         BTA_DmBleSetBgConnType
+**
+** Description      This function is called to set BLE connectable mode for a
+**                  peripheral device.
+**
+** Parameters       bg_conn_type: it can be auto connection, or selective connection.
+**                  p_select_cback: callback function when selective connection procedure
+**                              is being used.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_DmBleSetBgConnType(tBTA_DM_BLE_CONN_TYPE bg_conn_type, tBTA_DM_BLE_SEL_CBACK *p_select_cback);
+
+/*******************************************************************************
+**
+** Function         BTA_DmBlePasskeyReply
+**
+** Description      Send BLE SMP passkey reply.
+**
+** Parameters:      bd_addr          - BD address of the peer
+**                  accept           - passkey entry sucessful or declined.
+**                  passkey          - passkey value, must be a 6 digit number,
+**                                     can be lead by 0.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_DmBlePasskeyReply(BD_ADDR bd_addr, BOOLEAN accept, UINT32 passkey);
+
+/*******************************************************************************
+**
+** Function         BTA_DmBleConfirmReply
+**
+** Description      Send BLE SMP SC user confirmation reply.
+**
+** Parameters:      bd_addr          - BD address of the peer
+**                  accept           - numbers to compare are the same or different.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_DmBleConfirmReply(BD_ADDR bd_addr, BOOLEAN accept);
+
+/*******************************************************************************
+**
+** Function         BTA_DmAddBleDevice
+**
+** Description      Add a BLE device.  This function will be normally called
+**                  during host startup to restore all required information
+**                  for a LE device stored in the NVRAM.
+**
+** Parameters:      bd_addr          - BD address of the peer
+**                  dev_type         - Remote device's device type.
+**                  addr_type        - LE device address type.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_DmAddBleDevice(BD_ADDR bd_addr, tBLE_ADDR_TYPE addr_type,
+                               tBT_DEVICE_TYPE dev_type);
+
+
+/*******************************************************************************
+**
+** Function         BTA_DmAddBleKey
+**
+** Description      Add/modify LE device information.  This function will be
+**                  normally called during host startup to restore all required
+**                  information stored in the NVRAM.
+**
+** Parameters:      bd_addr          - BD address of the peer
+**                  p_le_key         - LE key values.
+**                  key_type         - LE SMP key type.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_DmAddBleKey (BD_ADDR bd_addr,
+                             tBTA_LE_KEY_VALUE *p_le_key,
+                             tBTA_LE_KEY_TYPE key_type);
+
+/*******************************************************************************
+**
+** Function         BTA_DmSetBlePrefConnParams
+**
+** Description      This function is called to set the preferred connection
+**                  parameters when default connection parameter is not desired.
+**
+** Parameters:      bd_addr          - BD address of the peripheral
+**                  min_conn_int     - minimum preferred connection interval
+**                  max_conn_int     - maximum preferred connection interval
+**                  slave_latency    - preferred slave latency
+**                  supervision_tout - preferred supervision timeout
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_DmSetBlePrefConnParams(BD_ADDR bd_addr,
+                                       UINT16 min_conn_int, UINT16 max_conn_int,
+                                       UINT16 slave_latency, UINT16 supervision_tout );
+
+/*******************************************************************************
+**
+** Function         BTA_DmSetBleConnScanParams
+**
+** Description      This function is called to set scan parameters used in
+**                  BLE connection request
+**
+** Parameters:      scan_interval    - scan interval
+**                  scan_window      - scan window
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_DmSetBleConnScanParams(UINT32 scan_interval,
+                                       UINT32 scan_window);
+
+/*******************************************************************************
+**
+** Function         BTA_DmSetBleScanParams
+**
+** Description      This function is called to set scan parameters
+**
+** Parameters:      client_if - Client IF
+**                  scan_interval - scan interval
+**                  scan_window - scan window
+**                  scan_mode - scan mode
+**                  scan_param_setup_status_cback - Set scan param status callback
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_DmSetBleScanParams(tGATT_IF client_if, UINT32 scan_interval,
+                                   UINT32 scan_window, tBLE_SCAN_MODE scan_mode,
+                                   tBLE_SCAN_PARAM_SETUP_CBACK scan_param_setup_status_cback);
+
+/*******************************************************************************
+**
+** Function         BTA_DmSetBleAdvParams
+**
+** Description      This function sets the advertising parameters BLE functionality.
+**                  It is to be called when device act in peripheral or broadcaster
+**                  role.
+**
+** Parameters:      adv_int_min    - adv interval minimum
+**                  adv_int_max    - adv interval max
+**                  p_dir_bda      - directed adv initator address
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_DmSetBleAdvParams (UINT16 adv_int_min, UINT16 adv_int_max,
+                                   tBLE_BD_ADDR *p_dir_bda);
+/*******************************************************************************
+**
+** Function         BTA_DmSearchExt
+**
+** Description      This function searches for peer Bluetooth devices. It performs
+**                  an inquiry and gets the remote name for devices. Service
+**                  discovery is done if services is non zero
+**
+** Parameters       p_dm_inq: inquiry conditions
+**                  services: if service is not empty, service discovery will be done.
+**                            for all GATT based service condition, put num_uuid, and
+**                            p_uuid is the pointer to the list of UUID values.
+**                  p_cback: callback functino when search is completed.
+**
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_DmSearchExt(tBTA_DM_INQ *p_dm_inq, tBTA_SERVICE_MASK_EXT *p_services,
+                            tBTA_DM_SEARCH_CBACK *p_cback);
+
+/*******************************************************************************
+**
+** Function         BTA_DmDiscoverExt
+**
+** Description      This function does service discovery for services of a
+**                  peer device. When services.num_uuid is 0, it indicates all
+**                  GATT based services are to be searched; other wise a list of
+**                  UUID of interested services should be provided through
+**                  services.p_uuid.
+**
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_DmDiscoverExt(BD_ADDR bd_addr, tBTA_SERVICE_MASK_EXT *p_services,
+                              tBTA_DM_SEARCH_CBACK *p_cback, BOOLEAN sdp_search);
+
+/*******************************************************************************
+**
+** Function         BTA_DmDiscoverByTransport
+**
+** Description      This function does service discovery on particular transport
+**                  for services of a
+**                  peer device. When services.num_uuid is 0, it indicates all
+**                  GATT based services are to be searched; other wise a list of
+**                  UUID of interested services should be provided through
+**                  p_services->p_uuid.
+**
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_DmDiscoverByTransport(BD_ADDR bd_addr, tBTA_SERVICE_MASK_EXT *p_services,
+                                      tBTA_DM_SEARCH_CBACK *p_cback, BOOLEAN sdp_search,
+                                      tBTA_TRANSPORT transport);
+
+/*******************************************************************************
+**
+** Function         BTA_DmSetEncryption
+**
+** Description      This function is called to ensure that connection is
+**                  encrypted.  Should be called only on an open connection.
+**                  Typically only needed for connections that first want to
+**                  bring up unencrypted links, then later encrypt them.
+**
+** Parameters:      bd_addr       - Address of the peer device
+**                  transport     - transport of the link to be encruypted
+**                  p_callback    - Pointer to callback function to indicat the
+**                                  link encryption status
+**                  sec_act       - This is the security action to indicate
+**                                  what knid of BLE security level is required for
+**                                  the BLE link if the BLE is supported
+**                                  Note: This parameter is ignored for the BR/EDR link
+**                                        or the BLE is not supported
+**
+** Returns          void
+**
+**
+*******************************************************************************/
+extern void BTA_DmSetEncryption(BD_ADDR bd_addr, tBTA_TRANSPORT transport,
+                                tBTA_DM_ENCRYPT_CBACK *p_callback,
+                                tBTA_DM_BLE_SEC_ACT sec_act);
+
+
+/*******************************************************************************
+**
+** Function         BTA_DmBleObserve
+**
+** Description      This procedure keep the device listening for advertising
+**                  events from a broadcast device.
+**
+** Parameters       start: start or stop observe.
+**                  duration : Duration of the scan. Continuous scan if 0 is passed
+**                  p_results_cb: Callback to be called with scan results
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_DmBleObserve(BOOLEAN start, UINT8 duration,
+                             tBTA_DM_SEARCH_CBACK *p_results_cb);
+
+
+#endif
+
+#if BLE_INCLUDED == TRUE
+/*******************************************************************************
+**
+** Function         BTA_DmBleConfigLocalPrivacy
+**
+** Description      Enable/disable privacy on the local device
+**
+** Parameters:      privacy_enable   - enable/disabe privacy on remote device.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_DmBleConfigLocalPrivacy(BOOLEAN privacy_enable);
+
+/*******************************************************************************
+**
+** Function         BTA_DmBleEnableRemotePrivacy
+**
+** Description      Enable/disable privacy on a remote device
+**
+** Parameters:      bd_addr          - BD address of the peer
+**                  privacy_enable   - enable/disabe privacy on remote device.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_DmBleEnableRemotePrivacy(BD_ADDR bd_addr, BOOLEAN privacy_enable);
+
+
+/*******************************************************************************
+**
+** Function         BTA_DmBleSetAdvConfig
+**
+** Description      This function is called to override the BTA default ADV parameters.
+**
+** Parameters       Pointer to User defined ADV data structure
+**
+** Returns          None
+**
+*******************************************************************************/
+extern void BTA_DmBleSetAdvConfig (tBTA_BLE_AD_MASK data_mask,
+                                   tBTA_BLE_ADV_DATA *p_adv_cfg,
+                                   tBTA_SET_ADV_DATA_CMPL_CBACK *p_adv_data_cback);
+
+/*******************************************************************************
+**
+** Function         BTA_DmBleSetScanRsp
+**
+** Description      This function is called to override the BTA scan response.
+**
+** Parameters       Pointer to User defined ADV data structure
+**
+** Returns          None
+**
+*******************************************************************************/
+extern void BTA_DmBleSetScanRsp (tBTA_BLE_AD_MASK data_mask,
+                                 tBTA_BLE_ADV_DATA *p_adv_cfg,
+                                 tBTA_SET_ADV_DATA_CMPL_CBACK *p_adv_data_cback);
+
+/*******************************************************************************
+**
+** Function         BTA_DmBleBroadcast
+**
+** Description      This function starts or stops LE broadcasting.
+**
+** Parameters       start: start or stop broadcast.
+**
+** Returns          None
+**
+*******************************************************************************/
+extern void BTA_DmBleBroadcast (BOOLEAN start);
+
+
+/*******************************************************************************
+**
+** Function         BTA_BleEnableAdvInstance
+**
+** Description      This function enables the Multi ADV instance feature
+**
+** Parameters       p_params Pointer to ADV param user defined structure
+**                  p_cback  Pointer to Multi ADV callback structure
+**                  p_ref - Reference pointer
+**
+** Returns          None
+**
+*******************************************************************************/
+extern void BTA_BleEnableAdvInstance (tBTA_BLE_ADV_PARAMS *p_params,
+                                tBTA_BLE_MULTI_ADV_CBACK *p_cback,void *p_ref);
+
+/*******************************************************************************
+**
+** Function         BTA_BleUpdateAdvInstParam
+**
+** Description      This function updates the Multi ADV instance params
+**
+** Parameters       inst_id Instance ID
+**                  p_params Pointer to ADV param user defined structure
+**
+** Returns          None
+**
+*******************************************************************************/
+extern void BTA_BleUpdateAdvInstParam (UINT8 inst_id,
+                                tBTA_BLE_ADV_PARAMS *p_params);
+
+/*******************************************************************************
+**
+** Function         BTA_BleCfgAdvInstData
+**
+** Description      This function is called to configure the ADV instance data
+**
+** Parameters       inst_id - Instance ID
+**                  is_scan_rsp - Boolean value Scan response
+**                  Pointer to User defined ADV data structure
+** Returns          None
+**
+*******************************************************************************/
+extern void BTA_BleCfgAdvInstData (UINT8 inst_id, BOOLEAN is_scan_rsp,
+                                tBTA_BLE_AD_MASK data_mask, tBTA_BLE_ADV_DATA *p_data);
+
+/*******************************************************************************
+**
+** Function         BTA_BleDisableAdvInstance
+**
+** Description      This function is called to disable the ADV instance
+**
+** Parameters       inst_id - Instance ID to be disabled
+**
+** Returns          None
+**
+*******************************************************************************/
+extern void BTA_BleDisableAdvInstance(UINT8 inst_id);
+
+/*******************************************************************************
+**
+** Function         BTA_DmBleUpdateConnectionParams
+**
+** Description      Update connection parameters, can only be used when connection is up.
+**
+** Parameters:      bd_addr   - BD address of the peer
+**                  min_int   -     minimum connection interval, [0x0004~ 0x4000]
+**                  max_int   -     maximum connection interval, [0x0004~ 0x4000]
+**                  latency   -     slave latency [0 ~ 500]
+**                  timeout   -     supervision timeout [0x000a ~ 0xc80]
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_DmBleUpdateConnectionParams(BD_ADDR bd_addr, UINT16 min_int,
+                                   UINT16 max_int, UINT16 latency, UINT16 timeout);
+
+/*******************************************************************************
+**
+** Function         BTA_DmBleSetDataLength
+**
+** Description      This function is to set maximum LE data packet size
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_DmBleSetDataLength(BD_ADDR remote_device, UINT16 tx_data_length);
+
+/*******************************************************************************
+**
+** Function         BTA_DmBleSetStorageParams
+**
+** Description      This function is called to set the storage parameters
+**
+** Parameters       batch_scan_full_max -Max storage space (in %) allocated to full scanning
+**                  batch_scan_trunc_max -Max storage space (in %) allocated to truncated scanning
+**                  batch_scan_notify_threshold - Setup notification level based on total space
+**                  consumed by both pools. Setting it to 0 will disable threshold notification
+**                  p_setup_cback - Setup callback
+**                  p_thres_cback - Threshold callback
+**                  p_rep_cback - Reports callback
+**                  ref_value - Reference value
+**
+** Returns           None
+**
+*******************************************************************************/
+extern void BTA_DmBleSetStorageParams(UINT8 batch_scan_full_max,
+                                         UINT8 batch_scan_trunc_max,
+                                         UINT8 batch_scan_notify_threshold,
+                                         tBTA_BLE_SCAN_SETUP_CBACK *p_setup_cback,
+                                         tBTA_BLE_SCAN_THRESHOLD_CBACK *p_thres_cback,
+                                         tBTA_BLE_SCAN_REP_CBACK* p_rep_cback,
+                                         tBTA_DM_BLE_REF_VALUE ref_value);
+
+/*******************************************************************************
+**
+** Function         BTA_DmBleEnableBatchScan
+**
+** Description      This function is called to enable the batch scan
+**
+** Parameters       scan_mode -Batch scan mode
+**                  scan_interval - Scan interval
+**                  scan_window - Scan window
+**                  discard_rule -Discard rules
+**                  addr_type - Address type
+**                  ref_value - Reference value
+**
+** Returns           None
+**
+*******************************************************************************/
+extern void BTA_DmBleEnableBatchScan(tBTA_BLE_BATCH_SCAN_MODE scan_mode,
+                                         UINT32 scan_interval, UINT32 scan_window,
+                                         tBTA_BLE_DISCARD_RULE discard_rule,
+                                         tBLE_ADDR_TYPE        addr_type,
+                                         tBTA_DM_BLE_REF_VALUE ref_value);
+
+/*******************************************************************************
+**
+** Function         BTA_DmBleReadScanReports
+**
+** Description      This function is called to read the batch scan reports
+**
+** Parameters       scan_mode -Batch scan mode
+**                  ref_value - Reference value
+**
+** Returns          None
+**
+*******************************************************************************/
+extern void BTA_DmBleReadScanReports(tBTA_BLE_BATCH_SCAN_MODE scan_type,
+                                             tBTA_DM_BLE_REF_VALUE ref_value);
+
+/*******************************************************************************
+**
+** Function         BTA_DmBleDisableBatchScan
+**
+** Description      This function is called to disable the batch scanning
+**
+** Parameters       ref_value - Reference value
+**
+** Returns          None
+**
+*******************************************************************************/
+extern void BTA_DmBleDisableBatchScan(tBTA_DM_BLE_REF_VALUE ref_value);
+
+/*******************************************************************************
+**
+** Function         BTA_DmEnableScanFilter
+**
+** Description      This function is called to enable the adv data payload filter
+**
+** Parameters       action - enable or disable the APCF feature
+**                  p_cmpl_cback - Command completed callback
+**                  ref_value - Reference value
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_DmEnableScanFilter(UINT8 action,
+                                        tBTA_DM_BLE_PF_STATUS_CBACK *p_cmpl_cback,
+                                        tBTA_DM_BLE_REF_VALUE ref_value);
+
+/*******************************************************************************
+**
+** Function         BTA_DmBleScanFilterSetup
+**
+** Description      This function is called to setup the filter params
+**
+** Parameters       p_target: enable the filter condition on a target device; if NULL
+**                  filt_index - Filter index
+**                  p_filt_params -Filter parameters
+**                  ref_value - Reference value
+**                  action - Add, delete or clear
+**                  p_cmpl_back - Command completed callback
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_DmBleScanFilterSetup(UINT8 action,
+                                                   tBTA_DM_BLE_PF_FILT_INDEX filt_index,
+                                                   tBTA_DM_BLE_PF_FILT_PARAMS *p_filt_params,
+                                                   tBLE_BD_ADDR *p_target,
+                                                   tBTA_DM_BLE_PF_PARAM_CBACK *p_cmpl_cback,
+                                                   tBTA_DM_BLE_REF_VALUE ref_value);
+
+/*******************************************************************************
+**
+** Function         BTA_DmBleCfgFilterCondition
+**
+** Description      This function is called to configure the adv data payload filter
+**                  condition.
+**
+** Parameters       action: to read/write/clear
+**                  cond_type: filter condition type
+**                  filt_index - Filter index
+**                  p_cond: filter condition parameter
+**                  p_cmpl_back - Command completed callback
+**                  ref_value - Reference value
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_DmBleCfgFilterCondition(tBTA_DM_BLE_SCAN_COND_OP action,
+                                                 tBTA_DM_BLE_PF_COND_TYPE cond_type,
+                                                 tBTA_DM_BLE_PF_FILT_INDEX filt_index,
+                                                 tBTA_DM_BLE_PF_COND_PARAM *p_cond,
+                                                 tBTA_DM_BLE_PF_CFG_CBACK *p_cmpl_cback,
+                                                 tBTA_DM_BLE_REF_VALUE ref_value);
+
+
+/*******************************************************************************
+**
+** Function         BTA_DmBleTrackAdvertiser
+**
+** Description      This function is called to track the advertiser
+**
+** Parameters    ref_value - Reference value
+**               p_track_adv_cback - ADV callback
+**
+** Returns          None
+**
+*******************************************************************************/
+extern void BTA_DmBleTrackAdvertiser(tBTA_DM_BLE_REF_VALUE ref_value,
+                            tBTA_BLE_TRACK_ADV_CBACK *p_track_adv_cback);
+
+/*******************************************************************************
+**
+** Function         BTA_DmBleGetEnergyInfo
+**
+** Description      This function is called to obtain the energy info
+**
+** Parameters       p_cmpl_cback - Command complete callback
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_DmBleGetEnergyInfo(tBTA_BLE_ENERGY_INFO_CBACK *p_cmpl_cback);
+
+/*******************************************************************************
+**
+** Function         BTA_BrcmInit
+**
+** Description      This function initializes Broadcom specific VS handler in BTA
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_VendorInit  (void);
+
+/*******************************************************************************
+**
+** Function         BTA_BrcmCleanup
+**
+** Description      This function frees up Broadcom specific VS specific dynamic memory
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_VendorCleanup (void);
+
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* BTA_API_H */
diff --git a/rtkbt/code/bt/bta/include/bta_ar_api.h b/rtkbt/code/bt/bta/include/bta_ar_api.h
new file mode 100755
index 0000000..302833c
--- /dev/null
+++ b/rtkbt/code/bt/bta/include/bta_ar_api.h
@@ -0,0 +1,141 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2004-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the public interface file for the simulatenous advanced
+ *  audio/video streaming (AV) source and sink of BTA, Broadcom's Bluetooth
+ *  application layer for mobile phones.
+ *
+ ******************************************************************************/
+#ifndef BTA_AR_API_H
+#define BTA_AR_API_H
+
+#include "avdt_api.h"
+#include "avct_api.h"
+#include "avrc_api.h"
+#include "sdp_api.h"
+#include "bta_av_api.h"
+#include "bta_sys.h"
+
+/*****************************************************************************
+**  Constants and data types
+*****************************************************************************/
+/* This event signal to AR user that other profile is connected */
+#define BTA_AR_AVDT_CONN_EVT    (AVDT_MAX_EVT + 1)
+
+/*******************************************************************************
+**
+** Function         bta_ar_init
+**
+** Description      This function is called from bta_sys_init().
+**                  to initialize the control block
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void bta_ar_init(void);
+
+/*******************************************************************************
+**
+** Function         bta_ar_reg_avdt
+**
+** Description      This function is called to register to AVDTP.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void bta_ar_reg_avdt(tAVDT_REG *p_reg, tAVDT_CTRL_CBACK *p_cback, tBTA_SYS_ID sys_id);
+
+/*******************************************************************************
+**
+** Function         bta_ar_dereg_avdt
+**
+** Description      This function is called to de-register from AVDTP.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void bta_ar_dereg_avdt(tBTA_SYS_ID sys_id);
+
+/*******************************************************************************
+**
+** Function         bta_ar_avdt_conn
+**
+** Description      This function is called to let ar know that some AVDTP profile
+**                  is connected for this sys_id.
+**                  If the other sys modules started a timer for PENDING_EVT,
+**                  the timer can be stopped now.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void bta_ar_avdt_conn(tBTA_SYS_ID sys_id, BD_ADDR bd_addr);
+
+/*******************************************************************************
+**
+** Function         bta_ar_reg_avct
+**
+** Description      This function is called to register to AVCTP.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void bta_ar_reg_avct(UINT16 mtu, UINT16 mtu_br, UINT8 sec_mask, tBTA_SYS_ID sys_id);
+
+/*******************************************************************************
+**
+** Function         bta_ar_dereg_avct
+**
+** Description      This function is called to deregister from AVCTP.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void bta_ar_dereg_avct(tBTA_SYS_ID sys_id);
+
+/******************************************************************************
+**
+** Function         bta_ar_reg_avrc
+**
+** Description      This function is called to register an SDP record for AVRCP.
+**
+** Returns          void
+**
+******************************************************************************/
+extern void bta_ar_reg_avrc(UINT16 service_uuid, char *p_service_name,
+                            char *p_provider_name, UINT16 categories, tBTA_SYS_ID sys_id,
+                            BOOLEAN browse_supported, UINT16 profile_version);
+
+/******************************************************************************
+**
+** Function         bta_ar_dereg_avrc
+**
+** Description      This function is called to de-register/delete an SDP record for AVRCP.
+**
+** Returns          void
+**
+******************************************************************************/
+extern void bta_ar_dereg_avrc(UINT16 service_uuid, tBTA_SYS_ID sys_id);
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* BTA_AR_API_H */
diff --git a/rtkbt/code/bt/bta/include/bta_av_api.h b/rtkbt/code/bt/bta/include/bta_av_api.h
new file mode 100755
index 0000000..701d90c
--- /dev/null
+++ b/rtkbt/code/bt/bta/include/bta_av_api.h
@@ -0,0 +1,842 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2004-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the public interface file for the advanced audio/video streaming
+ *  (AV) subsystem of BTA, Broadcom's Bluetooth application layer for mobile
+ *  phones.
+ *
+ ******************************************************************************/
+#ifndef BTA_AV_API_H
+#define BTA_AV_API_H
+
+#include "avrc_api.h"
+#include "avdt_api.h"
+#include "a2d_api.h"
+#include "bta_api.h"
+
+/*****************************************************************************
+**  Constants and data types
+*****************************************************************************/
+/* Set to TRUE if seperate authorization prompt desired for AVCTP besides A2DP authorization */
+/* Typically FALSE when AVRCP is used in conjunction with A2DP */
+#ifndef BTA_AV_WITH_AVCTP_AUTHORIZATION
+#define BTA_AV_WITH_AVCTP_AUTHORIZATION     FALSE
+#endif
+
+/* AV status values */
+#define BTA_AV_SUCCESS          0       /* successful operation */
+#define BTA_AV_FAIL             1       /* generic failure */
+#define BTA_AV_FAIL_SDP         2       /* service not found */
+#define BTA_AV_FAIL_STREAM      3       /* stream connection failed */
+#define BTA_AV_FAIL_RESOURCES   4       /* no resources */
+#define BTA_AV_FAIL_ROLE        5       /* failed due to role management related issues */
+#define BTA_AV_FAIL_GET_CAP     6       /* get capability failed due to no SEP availale on the peer  */
+
+typedef UINT8 tBTA_AV_STATUS;
+
+/* AV features masks */
+#define BTA_AV_FEAT_RCTG        0x0001  /* remote control target */
+#define BTA_AV_FEAT_RCCT        0x0002  /* remote control controller */
+#define BTA_AV_FEAT_PROTECT     0x0004  /* streaming media contect protection */
+#define BTA_AV_FEAT_VENDOR      0x0008  /* remote control vendor dependent commands */
+#define BTA_AV_FEAT_REPORT      0x0020  /* use reporting service for VDP */
+#define BTA_AV_FEAT_METADATA    0x0040  /* remote control Metadata Transfer command/response */
+#define BTA_AV_FEAT_MULTI_AV    0x0080  /* use multi-av, if controller supports it */
+#define BTA_AV_FEAT_BROWSE      0x0010  /* use browsing channel */
+#define BTA_AV_FEAT_MASTER      0x0100  /* stream only as master role */
+#define BTA_AV_FEAT_ADV_CTRL    0x0200  /* remote control Advanced Control command/response */
+#define BTA_AV_FEAT_DELAY_RPT   0x0400  /* allow delay reporting */
+#define BTA_AV_FEAT_ACP_START   0x0800  /* start stream when 2nd SNK was accepted   */
+#define BTA_AV_FEAT_APP_SETTING 0x2000  /* Player app setting support */
+
+/* Internal features */
+#define BTA_AV_FEAT_NO_SCO_SSPD 0x8000  /* Do not suspend av streaming as to AG events(SCO or Call) */
+
+typedef UINT16 tBTA_AV_FEAT;
+
+/* AV channel values */
+#define BTA_AV_CHNL_MSK             0xC0
+#define BTA_AV_CHNL_AUDIO           0x40  /* audio channel */
+#define BTA_AV_CHNL_VIDEO           0x80  /* video channel */
+typedef UINT8 tBTA_AV_CHNL;
+
+
+#define BTA_AV_HNDL_MSK             0x3F
+typedef UINT8 tBTA_AV_HNDL;
+/* handle index to mask */
+#define BTA_AV_HNDL_TO_MSK(h)       ((UINT8)(1 << (h)))
+
+/* tBTA_AV_HNDL to mask */
+#define BTA_AV_HNDL_TYPE_TO_MSK(h)  ((UINT8)(1 << (h&BTA_AV_HNDL_MSK)))
+
+/* offset of codec type in codec info byte array */
+#define BTA_AV_CODEC_TYPE_IDX       AVDT_CODEC_TYPE_INDEX   /* 2 */
+
+
+
+/* maximum number of streams created: 1 for audio, 1 for video */
+#ifndef BTA_AV_NUM_STRS
+#define BTA_AV_NUM_STRS         2
+#endif
+
+#ifndef BTA_AV_MAX_SEPS
+#define BTA_AV_MAX_SEPS         2
+#endif
+
+#ifndef BTA_AV_MAX_A2DP_MTU
+ /*#define BTA_AV_MAX_A2DP_MTU     668 //224 (DM5) * 3 - 4(L2CAP header) */
+#define BTA_AV_MAX_A2DP_MTU     1008
+#endif
+
+#ifndef BTA_AV_MAX_VDP_MTU
+#define BTA_AV_MAX_VDP_MTU      1008
+#endif
+
+
+/* codec type */
+#define BTA_AV_CODEC_SBC        A2D_MEDIA_CT_SBC        /* SBC media codec type */
+#define BTA_AV_CODEC_M12        A2D_MEDIA_CT_M12        /* MPEG-1, 2 Audio media codec type */
+#define BTA_AV_CODEC_M24        A2D_MEDIA_CT_M24        /* MPEG-2, 4 AAC media codec type */
+#define BTA_AV_CODEC_ATRAC      A2D_MEDIA_CT_ATRAC      /* ATRAC family media codec type */
+#define BTA_AV_CODEC_H263_P0    VDP_MEDIA_CT_H263_P0    /* H.263 baseline (profile 0) */
+#define BTA_AV_CODEC_MPEG4      VDP_MEDIA_CT_MPEG4      /* MPEG-4 Visual Simple Profile */
+#define BTA_AV_CODEC_H263_P3    VDP_MEDIA_CT_H263_P3    /* H.263 profile 3 */
+#define BTA_AV_CODEC_H263_P8    VDP_MEDIA_CT_H263_P8    /* H.263 profile 8 */
+#define BTA_AV_CODEC_VEND       VDP_MEDIA_CT_VEND       /* Non-VDP */
+
+typedef UINT8 tBTA_AV_CODEC;
+
+/* Company ID in BT assigned numbers */
+#define BTA_AV_BT_VENDOR_ID     VDP_BT_VENDOR_ID        /* Broadcom Corporation */
+
+/* vendor specific codec ID */
+#define BTA_AV_CODEC_ID_H264    VDP_CODEC_ID_H264       /* Non-VDP codec ID - H.264 */
+#define BTA_AV_CODEC_ID_IMG     VDP_CODEC_ID_IMG        /* Non-VDP codec ID - images/slideshow */
+
+/* operation id list for BTA_AvRemoteCmd */
+#define BTA_AV_RC_SELECT        AVRC_ID_SELECT      /* select */
+#define BTA_AV_RC_UP            AVRC_ID_UP          /* up */
+#define BTA_AV_RC_DOWN          AVRC_ID_DOWN        /* down */
+#define BTA_AV_RC_LEFT          AVRC_ID_LEFT        /* left */
+#define BTA_AV_RC_RIGHT         AVRC_ID_RIGHT       /* right */
+#define BTA_AV_RC_RIGHT_UP      AVRC_ID_RIGHT_UP    /* right-up */
+#define BTA_AV_RC_RIGHT_DOWN    AVRC_ID_RIGHT_DOWN  /* right-down */
+#define BTA_AV_RC_LEFT_UP       AVRC_ID_LEFT_UP     /* left-up */
+#define BTA_AV_RC_LEFT_DOWN     AVRC_ID_LEFT_DOWN   /* left-down */
+#define BTA_AV_RC_ROOT_MENU     AVRC_ID_ROOT_MENU   /* root menu */
+#define BTA_AV_RC_SETUP_MENU    AVRC_ID_SETUP_MENU  /* setup menu */
+#define BTA_AV_RC_CONT_MENU     AVRC_ID_CONT_MENU   /* contents menu */
+#define BTA_AV_RC_FAV_MENU      AVRC_ID_FAV_MENU    /* favorite menu */
+#define BTA_AV_RC_EXIT          AVRC_ID_EXIT        /* exit */
+#define BTA_AV_RC_0             AVRC_ID_0           /* 0 */
+#define BTA_AV_RC_1             AVRC_ID_1           /* 1 */
+#define BTA_AV_RC_2             AVRC_ID_2           /* 2 */
+#define BTA_AV_RC_3             AVRC_ID_3           /* 3 */
+#define BTA_AV_RC_4             AVRC_ID_4           /* 4 */
+#define BTA_AV_RC_5             AVRC_ID_5           /* 5 */
+#define BTA_AV_RC_6             AVRC_ID_6           /* 6 */
+#define BTA_AV_RC_7             AVRC_ID_7           /* 7 */
+#define BTA_AV_RC_8             AVRC_ID_8           /* 8 */
+#define BTA_AV_RC_9             AVRC_ID_9           /* 9 */
+#define BTA_AV_RC_DOT           AVRC_ID_DOT         /* dot */
+#define BTA_AV_RC_ENTER         AVRC_ID_ENTER       /* enter */
+#define BTA_AV_RC_CLEAR         AVRC_ID_CLEAR       /* clear */
+#define BTA_AV_RC_CHAN_UP       AVRC_ID_CHAN_UP     /* channel up */
+#define BTA_AV_RC_CHAN_DOWN     AVRC_ID_CHAN_DOWN   /* channel down */
+#define BTA_AV_RC_PREV_CHAN     AVRC_ID_PREV_CHAN   /* previous channel */
+#define BTA_AV_RC_SOUND_SEL     AVRC_ID_SOUND_SEL   /* sound select */
+#define BTA_AV_RC_INPUT_SEL     AVRC_ID_INPUT_SEL   /* input select */
+#define BTA_AV_RC_DISP_INFO     AVRC_ID_DISP_INFO   /* display information */
+#define BTA_AV_RC_HELP          AVRC_ID_HELP        /* help */
+#define BTA_AV_RC_PAGE_UP       AVRC_ID_PAGE_UP     /* page up */
+#define BTA_AV_RC_PAGE_DOWN     AVRC_ID_PAGE_DOWN   /* page down */
+#define BTA_AV_RC_POWER         AVRC_ID_POWER       /* power */
+#define BTA_AV_RC_VOL_UP        AVRC_ID_VOL_UP      /* volume up */
+#define BTA_AV_RC_VOL_DOWN      AVRC_ID_VOL_DOWN    /* volume down */
+#define BTA_AV_RC_MUTE          AVRC_ID_MUTE        /* mute */
+#define BTA_AV_RC_PLAY          AVRC_ID_PLAY        /* play */
+#define BTA_AV_RC_STOP          AVRC_ID_STOP        /* stop */
+#define BTA_AV_RC_PAUSE         AVRC_ID_PAUSE       /* pause */
+#define BTA_AV_RC_RECORD        AVRC_ID_RECORD      /* record */
+#define BTA_AV_RC_REWIND        AVRC_ID_REWIND      /* rewind */
+#define BTA_AV_RC_FAST_FOR      AVRC_ID_FAST_FOR    /* fast forward */
+#define BTA_AV_RC_EJECT         AVRC_ID_EJECT       /* eject */
+#define BTA_AV_RC_FORWARD       AVRC_ID_FORWARD     /* forward */
+#define BTA_AV_RC_BACKWARD      AVRC_ID_BACKWARD    /* backward */
+#define BTA_AV_RC_ANGLE         AVRC_ID_ANGLE       /* angle */
+#define BTA_AV_RC_SUBPICT       AVRC_ID_SUBPICT     /* subpicture */
+#define BTA_AV_RC_F1            AVRC_ID_F1          /* F1 */
+#define BTA_AV_RC_F2            AVRC_ID_F2          /* F2 */
+#define BTA_AV_RC_F3            AVRC_ID_F3          /* F3 */
+#define BTA_AV_RC_F4            AVRC_ID_F4          /* F4 */
+#define BTA_AV_RC_F5            AVRC_ID_F5          /* F5 */
+#define BTA_AV_VENDOR           AVRC_ID_VENDOR      /* vendor unique */
+
+typedef UINT8 tBTA_AV_RC;
+
+/* state flag for pass through command */
+#define BTA_AV_STATE_PRESS      AVRC_STATE_PRESS    /* key pressed */
+#define BTA_AV_STATE_RELEASE    AVRC_STATE_RELEASE  /* key released */
+
+typedef UINT8 tBTA_AV_STATE;
+
+/* command codes for BTA_AvVendorCmd */
+#define BTA_AV_CMD_CTRL         AVRC_CMD_CTRL
+#define BTA_AV_CMD_STATUS       AVRC_CMD_STATUS
+#define BTA_AV_CMD_SPEC_INQ     AVRC_CMD_SPEC_INQ
+#define BTA_AV_CMD_NOTIF        AVRC_CMD_NOTIF
+#define BTA_AV_CMD_GEN_INQ      AVRC_CMD_GEN_INQ
+
+typedef UINT8 tBTA_AV_CMD;
+
+/* response codes for BTA_AvVendorRsp */
+#define BTA_AV_RSP_NOT_IMPL     AVRC_RSP_NOT_IMPL
+#define BTA_AV_RSP_ACCEPT       AVRC_RSP_ACCEPT
+#define BTA_AV_RSP_REJ          AVRC_RSP_REJ
+#define BTA_AV_RSP_IN_TRANS     AVRC_RSP_IN_TRANS
+#define BTA_AV_RSP_IMPL_STBL    AVRC_RSP_IMPL_STBL
+#define BTA_AV_RSP_CHANGED      AVRC_RSP_CHANGED
+#define BTA_AV_RSP_INTERIM      AVRC_RSP_INTERIM
+
+typedef UINT8 tBTA_AV_CODE;
+
+/* error codes for BTA_AvProtectRsp */
+#define BTA_AV_ERR_NONE             A2D_SUCCESS         /* Success, no error */
+#define BTA_AV_ERR_BAD_STATE        AVDT_ERR_BAD_STATE  /* Message cannot be processed in this state */
+#define BTA_AV_ERR_RESOURCE         AVDT_ERR_RESOURCE   /* Insufficient resources */
+#define BTA_AV_ERR_BAD_CP_TYPE      A2D_BAD_CP_TYPE     /* The requested Content Protection Type is not supported */
+#define BTA_AV_ERR_BAD_CP_FORMAT    A2D_BAD_CP_FORMAT   /* The format of Content Protection Data is not correct */
+
+typedef UINT8 tBTA_AV_ERR;
+
+
+/* AV callback events */
+#define BTA_AV_ENABLE_EVT       0       /* AV enabled */
+#define BTA_AV_REGISTER_EVT     1       /* registered to AVDT */
+#define BTA_AV_OPEN_EVT         2       /* connection opened */
+#define BTA_AV_CLOSE_EVT        3       /* connection closed */
+#define BTA_AV_START_EVT        4       /* stream data transfer started */
+#define BTA_AV_STOP_EVT         5       /* stream data transfer stopped */
+#define BTA_AV_PROTECT_REQ_EVT  6       /* content protection request */
+#define BTA_AV_PROTECT_RSP_EVT  7       /* content protection response */
+#define BTA_AV_RC_OPEN_EVT      8       /* remote control channel open */
+#define BTA_AV_RC_CLOSE_EVT     9       /* remote control channel closed */
+#define BTA_AV_REMOTE_CMD_EVT   10      /* remote control command */
+#define BTA_AV_REMOTE_RSP_EVT   11      /* remote control response */
+#define BTA_AV_VENDOR_CMD_EVT   12      /* vendor dependent remote control command */
+#define BTA_AV_VENDOR_RSP_EVT   13      /* vendor dependent remote control response */
+#define BTA_AV_RECONFIG_EVT     14      /* reconfigure response */
+#define BTA_AV_SUSPEND_EVT      15      /* suspend response */
+#define BTA_AV_PENDING_EVT      16      /* incoming connection pending:
+                                         * signal channel is open and stream is
+                                         * not open after
+                                         * BTA_AV_SIGNALLING_TIMEOUT_MS */
+#define BTA_AV_META_MSG_EVT     17      /* metadata messages */
+#define BTA_AV_REJECT_EVT       18      /* incoming connection rejected */
+#define BTA_AV_RC_FEAT_EVT      19      /* remote control channel peer supported features update */
+#define BTA_AV_MEDIA_SINK_CFG_EVT    20 /* command to configure codec */
+#define BTA_AV_MEDIA_DATA_EVT   21      /* sending data to Media Task */
+#define BTA_AV_OFFLOAD_START_RSP_EVT 22 /* a2dp offload start response */
+/* Max BTA event */
+#define BTA_AV_MAX_EVT          23
+
+
+typedef UINT8 tBTA_AV_EVT;
+
+/* Event associated with BTA_AV_ENABLE_EVT */
+typedef struct
+{
+    tBTA_AV_FEAT    features;
+} tBTA_AV_ENABLE;
+
+/* Event associated with BTA_AV_REGISTER_EVT */
+typedef struct
+{
+    tBTA_AV_CHNL    chnl;       /* audio/video */
+    tBTA_AV_HNDL    hndl;       /* Handle associated with the stream. */
+    UINT8           app_id;     /* ID associated with call to BTA_AvRegister() */
+    tBTA_AV_STATUS  status;
+} tBTA_AV_REGISTER;
+
+/* data associated with BTA_AV_OPEN_EVT */
+#define BTA_AV_EDR_2MBPS        0x01
+#define BTA_AV_EDR_3MBPS        0x02
+typedef UINT8 tBTA_AV_EDR;
+
+typedef struct
+{
+    tBTA_AV_CHNL    chnl;
+    tBTA_AV_HNDL    hndl;
+    BD_ADDR         bd_addr;
+    tBTA_AV_STATUS  status;
+    BOOLEAN         starting;
+    tBTA_AV_EDR     edr;        /* 0, if peer device does not support EDR */
+    UINT8           sep;        /*  sep type of peer device */
+} tBTA_AV_OPEN;
+
+/* data associated with BTA_AV_CLOSE_EVT */
+typedef struct
+{
+    tBTA_AV_CHNL    chnl;
+    tBTA_AV_HNDL    hndl;
+} tBTA_AV_CLOSE;
+
+/* data associated with BTA_AV_START_EVT */
+typedef struct
+{
+    tBTA_AV_CHNL    chnl;
+    tBTA_AV_HNDL    hndl;
+    tBTA_AV_STATUS  status;
+    BOOLEAN         initiator; /* TRUE, if local device initiates the START */
+    BOOLEAN         suspending;
+} tBTA_AV_START;
+
+/* data associated with BTA_AV_SUSPEND_EVT */
+typedef struct
+{
+    tBTA_AV_CHNL    chnl;
+    tBTA_AV_HNDL    hndl;
+    BOOLEAN         initiator; /* TRUE, if local device initiates the SUSPEND */
+    tBTA_AV_STATUS  status;
+} tBTA_AV_SUSPEND;
+
+/* data associated with BTA_AV_RECONFIG_EVT */
+typedef struct
+{
+    tBTA_AV_CHNL    chnl;
+    tBTA_AV_HNDL    hndl;
+    tBTA_AV_STATUS  status;
+} tBTA_AV_RECONFIG;
+
+/* data associated with BTA_AV_PROTECT_REQ_EVT */
+typedef struct
+{
+    tBTA_AV_CHNL    chnl;
+    tBTA_AV_HNDL    hndl;
+    UINT8           *p_data;
+    UINT16          len;
+} tBTA_AV_PROTECT_REQ;
+
+/* data associated with BTA_AV_PROTECT_RSP_EVT */
+typedef struct
+{
+    tBTA_AV_CHNL    chnl;
+    tBTA_AV_HNDL    hndl;
+    UINT8           *p_data;
+    UINT16          len;
+    tBTA_AV_ERR     err_code;
+} tBTA_AV_PROTECT_RSP;
+
+/* data associated with BTA_AV_RC_OPEN_EVT */
+typedef struct
+{
+    UINT8           rc_handle;
+    tBTA_AV_FEAT    peer_features;
+    BD_ADDR         peer_addr;
+    tBTA_AV_STATUS  status;
+} tBTA_AV_RC_OPEN;
+
+/* data associated with BTA_AV_RC_CLOSE_EVT */
+typedef struct
+{
+    UINT8           rc_handle;
+    BD_ADDR         peer_addr;
+} tBTA_AV_RC_CLOSE;
+
+/* data associated with BTA_AV_RC_FEAT_EVT */
+typedef struct
+{
+    UINT8           rc_handle;
+    tBTA_AV_FEAT    peer_features;
+    BD_ADDR         peer_addr;
+} tBTA_AV_RC_FEAT;
+
+/* data associated with BTA_AV_REMOTE_CMD_EVT */
+typedef struct
+{
+    UINT8           rc_handle;
+    tBTA_AV_RC      rc_id;
+    tBTA_AV_STATE   key_state;
+    UINT8           len;
+    UINT8           *p_data;
+    tAVRC_HDR       hdr;    /* Message header. */
+    UINT8           label;
+} tBTA_AV_REMOTE_CMD;
+
+/* data associated with BTA_AV_REMOTE_RSP_EVT */
+typedef struct
+{
+    UINT8           rc_handle;
+    tBTA_AV_RC      rc_id;
+    tBTA_AV_STATE   key_state;
+    UINT8           len;
+    UINT8           *p_data;
+    tBTA_AV_CODE    rsp_code;
+    UINT8           label;
+} tBTA_AV_REMOTE_RSP;
+
+/* data associated with BTA_AV_VENDOR_CMD_EVT, BTA_AV_VENDOR_RSP_EVT */
+typedef struct
+{
+    UINT8           rc_handle;
+    UINT16          len;            /* Max vendor dependent message is 512 */
+    UINT8           label;
+    tBTA_AV_CODE    code;
+    UINT32          company_id;
+    UINT8           *p_data;
+} tBTA_AV_VENDOR;
+
+/* data associated with BTA_AV_META_MSG_EVT */
+typedef struct
+{
+    UINT8           rc_handle;
+    UINT16          len;
+    UINT8           label;
+    tBTA_AV_CODE    code;
+    UINT32          company_id;
+    UINT8           *p_data;
+    tAVRC_MSG       *p_msg;
+} tBTA_AV_META_MSG;
+
+/* data associated with BTA_AV_PENDING_EVT */
+typedef struct
+{
+    BD_ADDR         bd_addr;
+} tBTA_AV_PEND;
+
+/* data associated with BTA_AV_REJECT_EVT */
+typedef struct
+{
+    BD_ADDR         bd_addr;
+    tBTA_AV_HNDL    hndl;       /* Handle associated with the stream that rejected the connection. */
+} tBTA_AV_REJECT;
+
+
+/* union of data associated with AV callback */
+typedef union
+{
+    tBTA_AV_CHNL        chnl;
+    tBTA_AV_ENABLE      enable;
+    tBTA_AV_REGISTER    registr;
+    tBTA_AV_OPEN        open;
+    tBTA_AV_CLOSE       close;
+    tBTA_AV_START       start;
+    tBTA_AV_PROTECT_REQ protect_req;
+    tBTA_AV_PROTECT_RSP protect_rsp;
+    tBTA_AV_RC_OPEN     rc_open;
+    tBTA_AV_RC_CLOSE    rc_close;
+    tBTA_AV_REMOTE_CMD  remote_cmd;
+    tBTA_AV_REMOTE_RSP  remote_rsp;
+    tBTA_AV_VENDOR      vendor_cmd;
+    tBTA_AV_VENDOR      vendor_rsp;
+    tBTA_AV_RECONFIG    reconfig;
+    tBTA_AV_SUSPEND     suspend;
+    tBTA_AV_PEND        pend;
+    tBTA_AV_META_MSG    meta_msg;
+    tBTA_AV_REJECT      reject;
+    tBTA_AV_RC_FEAT     rc_feat;
+    tBTA_AV_STATUS      status;
+} tBTA_AV;
+
+typedef struct
+{
+    UINT8 *codec_info;
+    BD_ADDR bd_addr;;
+} tBTA_AVK_CONFIG;
+
+/* union of data associated with AV Media callback */
+typedef union
+{
+    BT_HDR     *p_data;
+    tBTA_AVK_CONFIG avk_config;
+} tBTA_AV_MEDIA;
+
+
+#define BTA_AVC_PACKET_LEN                  AVRC_PACKET_LEN
+#define BTA_VENDOR_DATA_OFFSET              6
+#define BTA_VENDOR_HEADER_LEN               4
+#define BTA_MAX_VENDOR_DEPENDENT_DATA_LEN   (BTA_AVC_PACKET_LEN-BTA_VENDOR_DATA_OFFSET-BTA_VENDOR_HEADER_LEN)
+#define BTA_GROUP_NAVI_MSG_OP_DATA_LEN      5
+
+#define BTA_ERROR_INVALID_CMD           AVRC_STS_BAD_CMD
+#define BTA_ERROR_INVALID_PARAM         AVRC_STS_BAD_PARAM
+#define BTA_ERROR_BAD_CONTENTS          AVRC_STS_NOT_FOUND
+#define BTA_ERROR_INTERNAL              AVRC_STS_INTERNAL_ERR
+
+#define BTA_AV_META_SINGLE_PACKET       AVRC_PKT_SINGLE
+
+#define BTA_AV_CO_METADATA              AVRC_CO_METADATA
+
+/* AV callback */
+typedef void (tBTA_AV_CBACK)(tBTA_AV_EVT event, tBTA_AV *p_data);
+typedef void (tBTA_AV_DATA_CBACK)(tBTA_AV_EVT event, tBTA_AV_MEDIA *p_data);
+
+/* type for stream state machine action functions */
+typedef void (*tBTA_AV_ACT)(void *p_cb, void *p_data);
+
+/* type for registering VDP */
+typedef void (tBTA_AV_REG) (tAVDT_CS *p_cs, char *p_service_name, void *p_data);
+
+/* AV configuration structure */
+typedef struct
+{
+    UINT32  company_id;         /* AVRCP Company ID */
+    UINT16  avrc_mtu;           /* AVRCP MTU at L2CAP for control channel */
+    UINT16  avrc_br_mtu;        /* AVRCP MTU at L2CAP for browsing channel */
+    UINT16  avrc_ct_cat;        /* AVRCP controller categories */
+    UINT16  avrc_tg_cat;        /* AVRCP target categories */
+    UINT16  sig_mtu;            /* AVDTP signaling channel MTU at L2CAP */
+    UINT16  audio_mtu;          /* AVDTP audio transport channel MTU at L2CAP */
+    const UINT16 *p_audio_flush_to;/* AVDTP audio transport channel flush timeout */
+    UINT16  audio_mqs;          /* AVDTP audio channel max data queue size */
+    UINT16  video_mtu;          /* AVDTP video transport channel MTU at L2CAP */
+    UINT16  video_flush_to;     /* AVDTP video transport channel flush timeout */
+    BOOLEAN avrc_group;         /* TRUE, to accept AVRC 1.3 group nevigation command */
+    UINT8   num_co_ids;         /* company id count in p_meta_co_ids */
+    UINT8   num_evt_ids;        /* event id count in p_meta_evt_ids */
+    tBTA_AV_CODE  rc_pass_rsp;  /* the default response code for pass through commands */
+    const UINT32 *p_meta_co_ids;/* the metadata Get Capabilities response for company id */
+    const UINT8 *p_meta_evt_ids;/* the the metadata Get Capabilities response for event id */
+    const tBTA_AV_ACT *p_act_tbl;/* the action function table for VDP stream */
+    tBTA_AV_REG       *p_reg;   /* action function to register VDP */
+    char              avrc_controller_name[BTA_SERVICE_NAME_LEN]; /* Default AVRCP controller name */
+    char              avrc_target_name[BTA_SERVICE_NAME_LEN];     /* Default AVRCP target name*/
+} tBTA_AV_CFG;
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+/*****************************************************************************
+**  External Function Declarations
+*****************************************************************************/
+
+/*******************************************************************************
+**
+** Function         BTA_AvEnable
+**
+** Description      Enable the advanced audio/video service. When the enable
+**                  operation is complete the callback function will be
+**                  called with a BTA_AV_ENABLE_EVT. This function must
+**                  be called before other function in the AV API are
+**                  called.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AvEnable(tBTA_SEC sec_mask, tBTA_AV_FEAT features,
+                          tBTA_AV_CBACK *p_cback);
+
+/*******************************************************************************
+**
+** Function         BTA_AvDisable
+**
+** Description      Disable the advanced audio/video service.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AvDisable(void);
+
+/*******************************************************************************
+**
+** Function         BTA_AvRegister
+**
+** Description      Register the audio or video service to stack. When the
+**                  operation is complete the callback function will be
+**                  called with a BTA_AV_REGISTER_EVT. This function must
+**                  be called before AVDT stream is open.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AvRegister(tBTA_AV_CHNL chnl, const char *p_service_name,
+                    UINT8 app_id, tBTA_AV_DATA_CBACK  *p_data_cback, UINT16 service_uuid);
+
+/*******************************************************************************
+**
+** Function         BTA_AvDeregister
+**
+** Description      Deregister the audio or video service
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AvDeregister(tBTA_AV_HNDL hndl);
+
+/*******************************************************************************
+**
+** Function         BTA_AvOpen
+**
+** Description      Opens an advanced audio/video connection to a peer device.
+**                  When connection is open callback function is called
+**                  with a BTA_AV_OPEN_EVT.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AvOpen(BD_ADDR bd_addr, tBTA_AV_HNDL handle,
+                        BOOLEAN use_rc, tBTA_SEC sec_mask, UINT16 uuid);
+
+/*******************************************************************************
+**
+** Function         BTA_AvClose
+**
+** Description      Close the current streams.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AvClose(tBTA_AV_HNDL handle);
+
+/*******************************************************************************
+**
+** Function         BTA_AvDisconnect
+**
+** Description      Close the connection to the address.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AvDisconnect(BD_ADDR bd_addr);
+
+/*******************************************************************************
+**
+** Function         BTA_AvEnable_Sink
+**
+** Description      Enable/Disable A2DP Sink.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AvEnable_Sink(int enable);
+
+/*******************************************************************************
+**
+** Function         BTA_AvStart
+**
+** Description      Start audio/video stream data transfer.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AvStart(void);
+
+/*******************************************************************************
+**
+** Function         BTA_AvStop
+**
+** Description      Stop audio/video stream data transfer.
+**                  If suspend is TRUE, this function sends AVDT suspend signal
+**                  to the connected peer(s).
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AvStop(BOOLEAN suspend);
+
+/*******************************************************************************
+**
+** Function         BTA_AvReconfig
+**
+** Description      Reconfigure the audio/video stream.
+**                  If suspend is TRUE, this function tries the suspend/reconfigure
+**                  procedure first.
+**                  If suspend is FALSE or when suspend/reconfigure fails,
+**                  this function closes and re-opens the AVDT connection.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AvReconfig(tBTA_AV_HNDL hndl, BOOLEAN suspend, UINT8 sep_info_idx,
+                            UINT8 *p_codec_info, UINT8 num_protect, UINT8 *p_protect_info);
+
+/*******************************************************************************
+**
+** Function         BTA_AvProtectReq
+**
+** Description      Send a content protection request.  This function can only
+**                  be used if AV is enabled with feature BTA_AV_FEAT_PROTECT.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AvProtectReq(tBTA_AV_HNDL hndl, UINT8 *p_data, UINT16 len);
+
+/*******************************************************************************
+**
+** Function         BTA_AvProtectRsp
+**
+** Description      Send a content protection response.  This function must
+**                  be called if a BTA_AV_PROTECT_REQ_EVT is received.
+**                  This function can only be used if AV is enabled with
+**                  feature BTA_AV_FEAT_PROTECT.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AvProtectRsp(tBTA_AV_HNDL hndl, UINT8 error_code, UINT8 *p_data,
+                              UINT16 len);
+
+/*******************************************************************************
+**
+** Function         BTA_AvRemoteCmd
+**
+** Description      Send a remote control command.  This function can only
+**                  be used if AV is enabled with feature BTA_AV_FEAT_RCCT.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AvRemoteCmd(UINT8 rc_handle, UINT8 label, tBTA_AV_RC rc_id,
+                             tBTA_AV_STATE key_state);
+
+/*******************************************************************************
+**
+** Function         BTA_AvRemoteVendorUniqueCmd
+**
+** Description      Send a remote control command with Vendor Unique rc_id.
+**                  This function can only be used if AV is enabled with
+**                  feature BTA_AV_FEAT_RCCT.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AvRemoteVendorUniqueCmd(UINT8 rc_handle, UINT8 label, tBTA_AV_STATE key_state,
+                                         UINT8* p_msg, UINT8 buf_len);
+
+/*******************************************************************************
+**
+** Function         BTA_AvVendorCmd
+**
+** Description      Send a vendor dependent remote control command.  This
+**                  function can only be used if AV is enabled with feature
+**                  BTA_AV_FEAT_VENDOR.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AvVendorCmd(UINT8 rc_handle, UINT8 label, tBTA_AV_CODE cmd_code,
+                             UINT8 *p_data, UINT16 len);
+
+/*******************************************************************************
+**
+** Function         BTA_AvVendorRsp
+**
+** Description      Send a vendor dependent remote control response.
+**                  This function must be called if a BTA_AV_VENDOR_CMD_EVT
+**                  is received. This function can only be used if AV is
+**                  enabled with feature BTA_AV_FEAT_VENDOR.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AvVendorRsp(UINT8 rc_handle, UINT8 label, tBTA_AV_CODE rsp_code,
+                             UINT8 *p_data, UINT16 len, UINT32 company_id);
+
+
+/*******************************************************************************
+**
+** Function         BTA_AvOpenRc
+**
+** Description      Open an AVRCP connection toward the device with the
+**                  specified handle
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AvOpenRc(tBTA_AV_HNDL handle);
+
+/*******************************************************************************
+**
+** Function         BTA_AvCloseRc
+**
+** Description      Close an AVRCP connection
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AvCloseRc(UINT8 rc_handle);
+
+/*******************************************************************************
+**
+** Function         BTA_AvMetaRsp
+**
+** Description      Send a Metadata command/response. The message contained
+**                  in p_pkt can be composed with AVRC utility functions.
+**                  This function can only be used if AV is enabled with feature
+**                  BTA_AV_FEAT_METADATA.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AvMetaRsp(UINT8 rc_handle, UINT8 label, tBTA_AV_CODE rsp_code,
+                               BT_HDR *p_pkt);
+
+/*******************************************************************************
+**
+** Function         BTA_AvMetaCmd
+**
+** Description      Send a Metadata/Advanced Control command. The message contained
+**                  in p_pkt can be composed with AVRC utility functions.
+**                  This function can only be used if AV is enabled with feature
+**                  BTA_AV_FEAT_METADATA.
+**                  This message is sent only when the peer supports the TG role.
+*8                  The only command makes sense right now is the absolute volume command.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AvMetaCmd(UINT8 rc_handle, UINT8 label, tBTA_AV_CMD cmd_code, BT_HDR *p_pkt);
+
+/*******************************************************************************
+**
+** Function         BTA_AvOffloadStart
+**
+** Description      Request Starting of A2DP Offload.
+**                  This function is used to start A2DP offload if vendor lib has
+**                  the feature enabled.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AvOffloadStart(tBTA_AV_HNDL hndl);
+
+/*******************************************************************************
+**
+** Function         BTA_AvOffloadStartRsp
+**
+** Description      Response from vendor library indicating response for
+**                  OffloadStart.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_AvOffloadStartRsp(tBTA_AV_HNDL hndl, tBTA_AV_STATUS status);
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* BTA_AV_API_H */
diff --git a/rtkbt/code/bt/bta/include/bta_av_ci.h b/rtkbt/code/bt/bta/include/bta_av_ci.h
new file mode 100755
index 0000000..9e2c62c
--- /dev/null
+++ b/rtkbt/code/bt/bta/include/bta_av_ci.h
@@ -0,0 +1,73 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2005-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the interface file for advanced audio/video call-in functions.
+ *
+ ******************************************************************************/
+#ifndef BTA_AV_CI_H
+#define BTA_AV_CI_H
+
+#include "bta_av_api.h"
+
+/*****************************************************************************
+**  Function Declarations
+*****************************************************************************/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+/*******************************************************************************
+**
+** Function         bta_av_ci_src_data_ready
+**
+** Description      This function sends an event to the AV indicating that
+**                  the phone has audio stream data ready to send and AV
+**                  should call bta_av_co_audio_src_data_path() or
+**                  bta_av_co_video_src_data_path().
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void bta_av_ci_src_data_ready(tBTA_AV_CHNL chnl);
+
+/*******************************************************************************
+**
+** Function         bta_av_ci_setconfig
+**
+** Description      This function must be called in response to function
+**                  bta_av_co_audio_setconfig() or bta_av_co_video_setconfig.
+**                  Parameter err_code is set to an AVDTP status value;
+**                  AVDT_SUCCESS if the codec configuration is ok,
+**                  otherwise error.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void bta_av_ci_setconfig(tBTA_AV_HNDL hndl, UINT8 err_code,
+                                        UINT8 category, UINT8 num_seid, UINT8 *p_seid,
+                                        BOOLEAN recfg_needed, UINT8 avdt_handle);
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* BTA_AV_CI_H */
diff --git a/rtkbt/code/bt/bta/include/bta_av_co.h b/rtkbt/code/bt/bta/include/bta_av_co.h
new file mode 100755
index 0000000..ad8e697
--- /dev/null
+++ b/rtkbt/code/bt/bta/include/bta_av_co.h
@@ -0,0 +1,391 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the interface file for advanced audio/video call-out functions.
+ *
+ ******************************************************************************/
+#ifndef BTA_AV_CO_H
+#define BTA_AV_CO_H
+
+#include "l2c_api.h"
+#include "bta_av_api.h"
+
+/*****************************************************************************
+**  Constants and data types
+*****************************************************************************/
+
+/* TRUE to use SCMS-T content protection */
+#ifndef BTA_AV_CO_CP_SCMS_T
+#define BTA_AV_CO_CP_SCMS_T     FALSE
+#endif
+
+/* the content protection IDs assigned by BT SIG */
+#define BTA_AV_CP_SCMS_T_ID     0x0002
+#define BTA_AV_CP_DTCP_ID       0x0001
+
+#define BTA_AV_CP_LOSC                  2
+#define BTA_AV_CP_INFO_LEN              3
+
+#define BTA_AV_CP_SCMS_COPY_MASK        3
+#define BTA_AV_CP_SCMS_COPY_FREE        2
+#define BTA_AV_CP_SCMS_COPY_ONCE        1
+#define BTA_AV_CP_SCMS_COPY_NEVER       0
+
+#define BTA_AV_CO_DEFAULT_AUDIO_OFFSET      AVDT_MEDIA_OFFSET
+
+enum
+{
+    BTA_AV_CO_ST_INIT,
+    BTA_AV_CO_ST_IN,
+    BTA_AV_CO_ST_OUT,
+    BTA_AV_CO_ST_OPEN,
+    BTA_AV_CO_ST_STREAM
+};
+
+
+/* data type for the Audio Codec Information*/
+typedef struct
+{
+    UINT16  bit_rate;       /* SBC encoder bit rate in kbps */
+    UINT16  bit_rate_busy;  /* SBC encoder bit rate in kbps */
+    UINT16  bit_rate_swampd;/* SBC encoder bit rate in kbps */
+    UINT8   busy_level;     /* Busy level indicating the bit-rate to be used */
+    UINT8   codec_info[AVDT_CODEC_SIZE];
+    UINT8   codec_type;     /* Codec type */
+} tBTA_AV_AUDIO_CODEC_INFO;
+
+/*******************************************************************************
+**
+** Function         bta_av_co_audio_init
+**
+** Description      This callout function is executed by AV when it is
+**                  started by calling BTA_AvEnable().  This function can be
+**                  used by the phone to initialize audio paths or for other
+**                  initialization purposes.
+**
+**
+** Returns          Stream codec and content protection capabilities info.
+**
+*******************************************************************************/
+extern BOOLEAN bta_av_co_audio_init(UINT8 *p_codec_type, UINT8 *p_codec_info,
+                                    UINT8 *p_num_protect, UINT8 *p_protect_info, UINT8 index);
+
+/*******************************************************************************
+**
+** Function         bta_av_co_audio_disc_res
+**
+** Description      This callout function is executed by AV to report the
+**                  number of stream end points (SEP) were found during the
+**                  AVDT stream discovery process.
+**
+**
+** Returns          void.
+**
+*******************************************************************************/
+extern void bta_av_co_audio_disc_res(tBTA_AV_HNDL hndl, UINT8 num_seps,
+                    UINT8 num_snk, UINT8 num_src, BD_ADDR addr, UINT16 uuid_local);
+
+/*******************************************************************************
+**
+** Function         bta_av_co_video_disc_res
+**
+** Description      This callout function is executed by AV to report the
+**                  number of stream end points (SEP) were found during the
+**                  AVDT stream discovery process.
+**
+**
+** Returns          void.
+**
+*******************************************************************************/
+extern void bta_av_co_video_disc_res(tBTA_AV_HNDL hndl, UINT8 num_seps,
+                                     UINT8 num_snk, BD_ADDR addr);
+
+/*******************************************************************************
+**
+** Function         bta_av_co_audio_getconfig
+**
+** Description      This callout function is executed by AV to retrieve the
+**                  desired codec and content protection configuration for the
+**                  audio stream.
+**
+**
+** Returns          Stream codec and content protection configuration info.
+**
+*******************************************************************************/
+extern UINT8 bta_av_co_audio_getconfig(tBTA_AV_HNDL hndl, tBTA_AV_CODEC codec_type,
+                                       UINT8 *p_codec_info, UINT8 *p_sep_info_idx, UINT8 seid,
+                                       UINT8 *p_num_protect, UINT8 *p_protect_info);
+
+/*******************************************************************************
+**
+** Function         bta_av_co_video_getconfig
+**
+** Description      This callout function is executed by AV to retrieve the
+**                  desired codec and content protection configuration for the
+**                  video stream.
+**
+**
+** Returns          Stream codec and content protection configuration info.
+**
+*******************************************************************************/
+extern UINT8 bta_av_co_video_getconfig(tBTA_AV_HNDL hndl, tBTA_AV_CODEC codec_type,
+                                       UINT8 *p_codec_info, UINT8 *p_sep_info_idx, UINT8 seid,
+                                       UINT8 *p_num_protect, UINT8 *p_protect_info);
+
+/*******************************************************************************
+**
+** Function         bta_av_co_audio_setconfig
+**
+** Description      This callout function is executed by AV to set the
+**                  codec and content protection configuration of the audio stream.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void bta_av_co_audio_setconfig(tBTA_AV_HNDL hndl, tBTA_AV_CODEC codec_type,
+                                        UINT8 *p_codec_info, UINT8 seid, BD_ADDR addr,
+                                        UINT8 num_protect, UINT8 *p_protect_info,UINT8 t_local_sep, UINT8 avdt_handle);
+
+/*******************************************************************************
+**
+** Function         bta_av_co_video_setconfig
+**
+** Description      This callout function is executed by AV to set the
+**                  codec and content protection configuration of the video stream.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void bta_av_co_video_setconfig(tBTA_AV_HNDL hndl, tBTA_AV_CODEC codec_type,
+                                      UINT8 *p_codec_info, UINT8 seid, BD_ADDR addr,
+                                      UINT8 num_protect, UINT8 *p_protect_info);
+
+/*******************************************************************************
+**
+** Function         bta_av_co_audio_open
+**
+** Description      This function is called by AV when the audio stream connection
+**                  is opened.
+**                  BTA-AV maintains the MTU of A2DP streams.
+**                  If this is the 2nd audio stream, mtu is the smaller of the 2
+**                  streams.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void bta_av_co_audio_open(tBTA_AV_HNDL hndl,
+                                 tBTA_AV_CODEC codec_type, UINT8 *p_codec_info,
+                                 UINT16 mtu);
+
+/*******************************************************************************
+**
+** Function         bta_av_co_video_open
+**
+** Description      This function is called by AV when the video stream connection
+**                  is opened.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void bta_av_co_video_open(tBTA_AV_HNDL hndl,
+                                 tBTA_AV_CODEC codec_type, UINT8 *p_codec_info,
+                                 UINT16 mtu);
+
+/*******************************************************************************
+**
+** Function         bta_av_co_audio_close
+**
+** Description      This function is called by AV when the audio stream connection
+**                  is closed.
+**                  BTA-AV maintains the MTU of A2DP streams.
+**                  When one stream is closed and no other audio stream is open,
+**                  mtu is reported as 0.
+**                  Otherwise, the MTU remains open is reported.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void bta_av_co_audio_close(tBTA_AV_HNDL hndl, tBTA_AV_CODEC codec_type,
+                                  UINT16 mtu);
+
+/*******************************************************************************
+**
+** Function         bta_av_co_video_close
+**
+** Description      This function is called by AV when the video stream connection
+**                  is closed.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void bta_av_co_video_close(tBTA_AV_HNDL hndl, tBTA_AV_CODEC codec_type,
+                                  UINT16 mtu);
+
+/*******************************************************************************
+**
+** Function         bta_av_co_audio_start
+**
+** Description      This function is called by AV when the audio streaming data
+**                  transfer is started.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void bta_av_co_audio_start(tBTA_AV_HNDL hndl, tBTA_AV_CODEC codec_type,
+                                  UINT8 *p_codec_info, BOOLEAN *p_no_rtp_hdr);
+
+/*******************************************************************************
+**
+** Function         bta_av_co_video_start
+**
+** Description      This function is called by AV when the video streaming data
+**                  transfer is started.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void bta_av_co_video_start(tBTA_AV_HNDL hndl, tBTA_AV_CODEC codec_type,
+                                  UINT8 *p_codec_info, BOOLEAN *p_no_rtp_hdr);
+
+/*******************************************************************************
+**
+** Function         bta_av_co_audio_stop
+**
+** Description      This function is called by AV when the audio streaming data
+**                  transfer is stopped.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void bta_av_co_audio_stop(tBTA_AV_HNDL hndl, tBTA_AV_CODEC codec_type);
+
+/*******************************************************************************
+**
+** Function         bta_av_co_video_stop
+**
+** Description      This function is called by AV when the video streaming data
+**                  transfer is stopped.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void bta_av_co_video_stop(tBTA_AV_HNDL hndl, tBTA_AV_CODEC codec_type);
+
+/*******************************************************************************
+**
+** Function         bta_av_co_audio_src_data_path
+**
+** Description      This function is called to get the next data buffer from
+**                  the audio codec
+**
+** Returns          NULL if data is not ready.
+**                  Otherwise, a GKI buffer (BT_HDR*) containing the audio data.
+**
+*******************************************************************************/
+extern void * bta_av_co_audio_src_data_path(tBTA_AV_CODEC codec_type,
+                                            UINT32 *p_len, UINT32 *p_timestamp);
+
+/*******************************************************************************
+**
+** Function         bta_av_co_video_src_data_path
+**
+** Description      This function is called to get the next data buffer from
+**                  the video codec.
+**
+** Returns          NULL if data is not ready.
+**                  Otherwise, a video data buffer (UINT8*).
+**
+*******************************************************************************/
+extern void * bta_av_co_video_src_data_path(tBTA_AV_CODEC codec_type,
+                                            UINT32 *p_len, UINT32 *p_timestamp);
+
+/*******************************************************************************
+**
+** Function         bta_av_co_audio_drop
+**
+** Description      An Audio packet is dropped. .
+**                  It's very likely that the connected headset with this handle
+**                  is moved far away. The implementation may want to reduce
+**                  the encoder bit rate setting to reduce the packet size.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void bta_av_co_audio_drop(tBTA_AV_HNDL hndl);
+
+/*******************************************************************************
+**
+** Function         bta_av_co_video_report_conn
+**
+** Description      This function is called by AV when the reporting channel is
+**                  opened (open=TRUE) or closed (open=FALSE).
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void bta_av_co_video_report_conn (BOOLEAN open, UINT8 avdt_handle);
+
+/*******************************************************************************
+**
+** Function         bta_av_co_video_report_rr
+**
+** Description      This function is called by AV when a Receiver Report is
+**                  received
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void bta_av_co_video_report_rr (UINT32 packet_lost);
+
+/*******************************************************************************
+**
+** Function         bta_av_co_audio_delay
+**
+** Description      This function is called by AV when the audio stream connection
+**                  needs to send the initial delay report to the connected SRC.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void bta_av_co_audio_delay(tBTA_AV_HNDL hndl, UINT16 delay);
+
+/*******************************************************************************
+**
+** Function         bta_av_co_video_delay
+**
+** Description      This function is called by AV when the video stream connection
+**                  needs to send the initial delay report to the connected SRC.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void bta_av_co_video_delay(tBTA_AV_HNDL hndl, UINT16 delay);
+
+#endif /* BTA_AV_CO_H */
diff --git a/rtkbt/code/bt/bta/include/bta_av_sbc.h b/rtkbt/code/bt/bta/include/bta_av_sbc.h
new file mode 100755
index 0000000..d7cfa89
--- /dev/null
+++ b/rtkbt/code/bt/bta/include/bta_av_sbc.h
@@ -0,0 +1,219 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2004-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the interface to utility functions for dealing with SBC data
+ *  frames and codec capabilities.
+ *
+ ******************************************************************************/
+#ifndef BTA_AV_SBC_H
+#define BTA_AV_SBC_H
+
+/*****************************************************************************
+**  constants
+*****************************************************************************/
+
+/* SBC packet header size */
+#define BTA_AV_SBC_HDR_SIZE         A2D_SBC_MPL_HDR_LEN
+
+/*******************************************************************************
+**
+** Function         bta_av_sbc_init_up_sample
+**
+** Description      initialize the up sample
+**
+**                  src_sps: samples per second (source audio data)
+**                  dst_sps: samples per second (converted audio data)
+**                  bits: number of bits per pcm sample
+**                  n_channels: number of channels (i.e. mono(1), stereo(2)...)
+**
+** Returns          none
+**
+*******************************************************************************/
+extern void bta_av_sbc_init_up_sample (UINT32 src_sps, UINT32 dst_sps,
+                                       UINT16 bits, UINT16 n_channels);
+
+/*******************************************************************************
+**
+** Function         bta_av_sbc_up_sample
+**
+** Description      Given the source (p_src) audio data and
+**                  source speed (src_sps, samples per second),
+**                  This function converts it to audio data in the desired format
+**
+**                  p_src: the data buffer that holds the source audio data
+**                  p_dst: the data buffer to hold the converted audio data
+**                  src_samples: The number of source samples (number of bytes)
+**                  dst_samples: The size of p_dst (number of bytes)
+**
+** Note:            An AE reported an issue with this function.
+**                  When called with bta_av_sbc_up_sample(src, uint8_array_dst..)
+**                  the byte before uint8_array_dst may get overwritten.
+**                  Using uint16_array_dst avoids the problem.
+**                  This issue is related to endian-ness and is hard to resolve
+**                  in a generic manner.
+** **************** Please use uint16 array as dst.
+**
+** Returns          The number of bytes used in p_dst
+**                  The number of bytes used in p_src (in *p_ret)
+**
+*******************************************************************************/
+extern int bta_av_sbc_up_sample (void *p_src, void *p_dst,
+                                 UINT32 src_samples, UINT32 dst_samples,
+                                 UINT32 *p_ret);
+
+/*******************************************************************************
+**
+** Function         bta_av_sbc_up_sample_16s (16bits-stereo)
+**
+** Description      Given the source (p_src) audio data and
+**                  source speed (src_sps, samples per second),
+**                  This function converts it to audio data in the desired format
+**
+**                  p_src: the data buffer that holds the source audio data
+**                  p_dst: the data buffer to hold the converted audio data
+**                  src_samples: The number of source samples (in uint of 4 bytes)
+**                  dst_samples: The size of p_dst (in uint of 4 bytes)
+**
+** Returns          The number of bytes used in p_dst
+**                  The number of bytes used in p_src (in *p_ret)
+**
+*******************************************************************************/
+extern int bta_av_sbc_up_sample_16s (void *p_src, void *p_dst,
+                                 UINT32 src_samples, UINT32 dst_samples,
+                                 UINT32 *p_ret);
+
+/*******************************************************************************
+**
+** Function         bta_av_sbc_up_sample_16m (16bits-mono)
+**
+** Description      Given the source (p_src) audio data and
+**                  source speed (src_sps, samples per second),
+**                  This function converts it to audio data in the desired format
+**
+**                  p_src: the data buffer that holds the source audio data
+**                  p_dst: the data buffer to hold the converted audio data
+**                  src_samples: The number of source samples (in uint of 2 bytes)
+**                  dst_samples: The size of p_dst (in uint of 2 bytes)
+**
+** Returns          The number of bytes used in p_dst
+**                  The number of bytes used in p_src (in *p_ret)
+**
+*******************************************************************************/
+extern int bta_av_sbc_up_sample_16m (void *p_src, void *p_dst,
+                                     UINT32 src_samples, UINT32 dst_samples,
+                                     UINT32 *p_ret);
+
+/*******************************************************************************
+**
+** Function         bta_av_sbc_up_sample_8s (8bits-stereo)
+**
+** Description      Given the source (p_src) audio data and
+**                  source speed (src_sps, samples per second),
+**                  This function converts it to audio data in the desired format
+**
+**                  p_src: the data buffer that holds the source audio data
+**                  p_dst: the data buffer to hold the converted audio data
+**                  src_samples: The number of source samples (in uint of 2 bytes)
+**                  dst_samples: The size of p_dst (in uint of 2 bytes)
+**
+** Returns          The number of bytes used in p_dst
+**                  The number of bytes used in p_src (in *p_ret)
+**
+*******************************************************************************/
+extern int bta_av_sbc_up_sample_8s (void *p_src, void *p_dst,
+                                 UINT32 src_samples, UINT32 dst_samples,
+                                 UINT32 *p_ret);
+
+/*******************************************************************************
+**
+** Function         bta_av_sbc_up_sample_8m (8bits-mono)
+**
+** Description      Given the source (p_src) audio data and
+**                  source speed (src_sps, samples per second),
+**                  This function converts it to audio data in the desired format
+**
+**                  p_src: the data buffer that holds the source audio data
+**                  p_dst: the data buffer to hold the converted audio data
+**                  src_samples: The number of source samples (number of bytes)
+**                  dst_samples: The size of p_dst (number of bytes)
+**
+** Returns          The number of bytes used in p_dst
+**                  The number of bytes used in p_src (in *p_ret)
+**
+*******************************************************************************/
+extern int bta_av_sbc_up_sample_8m (void *p_src, void *p_dst,
+                                     UINT32 src_samples, UINT32 dst_samples,
+                                     UINT32 *p_ret);
+
+/*******************************************************************************
+**
+** Function         bta_av_sbc_cfg_for_cap
+**
+** Description      Determine the preferred SBC codec configuration for the
+**                  given codec capabilities.  The function is passed the
+**                  preferred codec configuration and the peer codec
+**                  capabilities for the stream.  The function attempts to
+**                  match the preferred capabilities with the configuration
+**                  as best it can.  The resulting codec configuration is
+**                  returned in the same memory used for the capabilities.
+**
+** Returns          0 if ok, nonzero if error.
+**                  Codec configuration in p_cap.
+**
+*******************************************************************************/
+extern UINT8 bta_av_sbc_cfg_for_cap(UINT8 *p_peer, tA2D_SBC_CIE *p_cap, tA2D_SBC_CIE *p_pref);
+
+/*******************************************************************************
+**
+** Function         bta_av_sbc_cfg_in_cap
+**
+** Description      This function checks whether an SBC codec configuration
+**                  is allowable for the given codec capabilities.
+**
+** Returns          0 if ok, nonzero if error.
+**
+*******************************************************************************/
+extern UINT8 bta_av_sbc_cfg_in_cap(UINT8 *p_cfg, tA2D_SBC_CIE *p_cap);
+
+/*******************************************************************************
+**
+** Function         bta_av_sbc_cfg_matches_cap
+**
+** Description      This function checks whether an SBC codec configuration
+**                  matched with capabilities. Here we check subset.
+**
+** Returns          0 if ok, nonzero if error.
+**
+*******************************************************************************/
+extern UINT8 bta_av_sbc_cfg_matches_cap(UINT8 *p_cfg, tA2D_SBC_CIE *p_cap);
+
+/*******************************************************************************
+**
+** Function         bta_av_sbc_bld_hdr
+**
+** Description      This function builds the packet header for MPF1.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void bta_av_sbc_bld_hdr(BT_HDR *p_buf, UINT16 fr_per_pkt);
+
+#endif /* BTA_AV_SBC_H */
+
diff --git a/rtkbt/code/bt/bta/include/bta_dm_ci.h b/rtkbt/code/bt/bta/include/bta_dm_ci.h
new file mode 100755
index 0000000..5593b9e
--- /dev/null
+++ b/rtkbt/code/bt/bta/include/bta_dm_ci.h
@@ -0,0 +1,80 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2006-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the interface file for device mananger call-in functions.
+ *
+ ******************************************************************************/
+#ifndef BTA_DM_CI_H
+#define BTA_DM_CI_H
+
+#include "bta_api.h"
+
+/*****************************************************************************
+**  Function Declarations
+*****************************************************************************/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+/*******************************************************************************
+**
+** Function         bta_dm_ci_io_req
+**
+** Description      This function must be called in response to function
+**                  bta_dm_co_io_req(), if *p_oob_data is set to BTA_OOB_UNKNOWN
+**                  by bta_dm_co_io_req().
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void bta_dm_ci_io_req(BD_ADDR bd_addr, tBTA_IO_CAP io_cap,
+                                     tBTA_OOB_DATA oob_data, tBTA_AUTH_REQ auth_req);
+
+/*******************************************************************************
+**
+** Function         bta_dm_ci_rmt_oob
+**
+** Description      This function must be called in response to function
+**                  bta_dm_co_rmt_oob() to provide the OOB data associated
+**                  with the remote device.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void bta_dm_ci_rmt_oob(BOOLEAN accept, BD_ADDR bd_addr,
+                              BT_OCTET16 c, BT_OCTET16 r);
+/*******************************************************************************
+**
+** Function         bta_dm_sco_ci_data_ready
+**
+** Description      This function sends an event to indicating that the phone
+**                  has SCO data ready..
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void bta_dm_sco_ci_data_ready(UINT16 event, UINT16 sco_handle);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/rtkbt/code/bt/bta/include/bta_dm_co.h b/rtkbt/code/bt/bta/include/bta_dm_co.h
new file mode 100755
index 0000000..49343aa
--- /dev/null
+++ b/rtkbt/code/bt/bta/include/bta_dm_co.h
@@ -0,0 +1,272 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2006-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the interface file for device mananger callout functions.
+ *
+ ******************************************************************************/
+#ifndef BTA_DM_CO_H
+#define BTA_DM_CO_H
+
+#include "bta_sys.h"
+
+
+#ifndef BTA_SCO_OUT_PKT_SIZE
+    #define BTA_SCO_OUT_PKT_SIZE    BTM_SCO_DATA_SIZE_MAX
+#endif
+
+#define BTA_SCO_CODEC_PCM       0       /* used for regular SCO */
+#define BTA_SCO_CODEC_SBC       1       /* used for WBS */
+typedef UINT8   tBTA_SCO_CODEC_TYPE;
+
+#define BTA_DM_SCO_SAMP_RATE_8K     8000
+#define BTA_DM_SCO_SAMP_RATE_16K    16000
+
+/* SCO codec information */
+typedef struct
+{
+    tBTA_SCO_CODEC_TYPE   codec_type;
+}tBTA_CODEC_INFO;
+
+#define BTA_DM_SCO_ROUTE_PCM	BTM_SCO_ROUTE_PCM
+#define BTA_DM_SCO_ROUTE_HCI	BTM_SCO_ROUTE_HCI
+
+typedef tBTM_SCO_ROUTE_TYPE tBTA_DM_SCO_ROUTE_TYPE;
+
+
+/*****************************************************************************
+**  Function Declarations
+*****************************************************************************/
+
+/*******************************************************************************
+**
+** Function         bta_dm_co_io_req
+**
+** Description      This callout function is executed by DM to get IO capabilities
+**                  of the local device for the Simple Pairing process
+**
+** Parameters       bd_addr  - The peer device
+**                  *p_io_cap - The local Input/Output capabilities
+**                  *p_oob_data - TRUE, if OOB data is available for the peer device.
+**                  *p_auth_req - TRUE, if MITM protection is required.
+**
+** Returns          void.
+**
+*******************************************************************************/
+extern void bta_dm_co_io_req(BD_ADDR bd_addr, tBTA_IO_CAP *p_io_cap,
+                             tBTA_OOB_DATA *p_oob_data, tBTA_AUTH_REQ *p_auth_req,
+                             BOOLEAN is_orig);
+
+/*******************************************************************************
+**
+** Function         bta_dm_co_io_rsp
+**
+** Description      This callout function is executed by DM to report IO capabilities
+**                  of the peer device for the Simple Pairing process
+**
+** Parameters       bd_addr  - The peer device
+**                  io_cap - The remote Input/Output capabilities
+**                  oob_data - TRUE, if OOB data is available for the peer device.
+**                  auth_req - TRUE, if MITM protection is required.
+**
+** Returns          void.
+**
+*******************************************************************************/
+extern void bta_dm_co_io_rsp(BD_ADDR bd_addr, tBTA_IO_CAP io_cap,
+                             tBTA_OOB_DATA oob_data, tBTA_AUTH_REQ auth_req);
+
+/*******************************************************************************
+**
+** Function         bta_dm_co_lk_upgrade
+**
+** Description      This callout function is executed by DM to check if the
+**                  platform wants allow link key upgrade
+**
+** Parameters       bd_addr  - The peer device
+**                  *p_upgrade - TRUE, if link key upgrade is desired.
+**
+** Returns          void.
+**
+*******************************************************************************/
+extern void  bta_dm_co_lk_upgrade(BD_ADDR bd_addr, BOOLEAN *p_upgrade );
+
+/*******************************************************************************
+**
+** Function         bta_dm_co_loc_oob
+**
+** Description      This callout function is executed by DM to report the OOB
+**                  data of the local device for the Simple Pairing process
+**
+** Parameters       valid - TRUE, if the local OOB data is retrieved from LM
+**                  c     - Simple Pairing Hash C
+**                  r     - Simple Pairing Randomnizer R
+**
+** Returns          void.
+**
+*******************************************************************************/
+extern void bta_dm_co_loc_oob(BOOLEAN valid, BT_OCTET16 c, BT_OCTET16 r);
+
+/*******************************************************************************
+**
+** Function         bta_dm_co_rmt_oob
+**
+** Description      This callout function is executed by DM to request the OOB
+**                  data for the remote device for the Simple Pairing process
+**
+** Parameters       bd_addr  - The peer device
+**
+** Returns          void.
+**
+*******************************************************************************/
+extern void bta_dm_co_rmt_oob(BD_ADDR bd_addr);
+
+/*****************************************************************************
+**  SCO over HCI Function Declarations
+*****************************************************************************/
+/*******************************************************************************
+**
+** Function         bta_dm_sco_co_init
+**
+** Description      This function can be used by the phone to initialize audio
+**                  codec or for other initialization purposes before SCO connection
+**                  is opened.
+**
+**
+** Returns          Void.
+**
+*******************************************************************************/
+extern tBTA_DM_SCO_ROUTE_TYPE bta_dm_sco_co_init(UINT32 rx_bw, UINT32 tx_bw,
+                                                 tBTA_CODEC_INFO *p_codec_info, UINT8 app_id);
+
+
+/*******************************************************************************
+**
+** Function         bta_dm_sco_co_open
+**
+** Description      This function is executed when a SCO connection is open.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void bta_dm_sco_co_open(UINT16 handle, UINT8 pkt_size, UINT16 event);
+
+/*******************************************************************************
+**
+** Function         bta_dm_sco_co_close
+**
+** Description      This function is called when a SCO connection is closed
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void bta_dm_sco_co_close(void);
+
+/*******************************************************************************
+**
+** Function         bta_dm_sco_co_out_data
+**
+** Description      This function is called to send SCO data over HCI.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void bta_dm_sco_co_out_data(BT_HDR  **p_buf);
+
+/*******************************************************************************
+**
+** Function         bta_dm_sco_co_in_data
+**
+** Description      This function is called to send incoming SCO data to application.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void bta_dm_sco_co_in_data(BT_HDR  *p_buf, tBTM_SCO_DATA_FLAG status);
+
+
+
+/*******************************************************************************
+**
+** Function         bta_dm_co_ble_io_req
+**
+** Description      This callout function is executed by DM to get BLE IO capabilities
+**                  before SMP pairing gets going.
+**
+** Parameters       bd_addr  - The peer device
+**                  *p_io_cap - The local Input/Output capabilities
+**                  *p_oob_data - TRUE, if OOB data is available for the peer device.
+**                  *p_auth_req -  Auth request setting (Bonding and MITM required or not)
+**                  *p_max_key_size - max key size local device supported.
+**                  *p_init_key - initiator keys.
+**                  *p_resp_key - responder keys.
+**
+** Returns          void.
+**
+*******************************************************************************/
+extern void bta_dm_co_ble_io_req(BD_ADDR bd_addr,  tBTA_IO_CAP *p_io_cap,
+                                 tBTA_OOB_DATA *p_oob_data,
+                                 tBTA_LE_AUTH_REQ *p_auth_req,
+                                 UINT8 *p_max_key_size,
+                                 tBTA_LE_KEY_TYPE *p_init_key,
+                                 tBTA_LE_KEY_TYPE  *p_resp_key );
+
+
+/*******************************************************************************
+**
+** Function         bta_dm_co_ble_local_key_reload
+**
+** Description      This callout function is to load the local BLE keys if available
+**                  on the device.
+**
+** Parameters       none
+**
+** Returns          void.
+**
+*******************************************************************************/
+extern void bta_dm_co_ble_load_local_keys (tBTA_DM_BLE_LOCAL_KEY_MASK *p_key_mask, BT_OCTET16 er,
+                                           tBTA_BLE_LOCAL_ID_KEYS *p_id_keys);
+
+/*******************************************************************************
+**
+** Function         bta_dm_co_ble_io_req
+**
+** Description      This callout function is executed by DM to get BLE IO capabilities
+**                  before SMP pairing gets going.
+**
+** Parameters       bd_addr  - The peer device
+**                  *p_io_cap - The local Input/Output capabilities
+**                  *p_oob_data - TRUE, if OOB data is available for the peer device.
+**                  *p_auth_req -  Auth request setting (Bonding and MITM required or not)
+**                  *p_max_key_size - max key size local device supported.
+**                  *p_init_key - initiator keys.
+**                  *p_resp_key - responder keys.
+**
+** Returns          void.
+**
+*******************************************************************************/
+extern void bta_dm_co_ble_io_req(BD_ADDR bd_addr,  tBTA_IO_CAP *p_io_cap,
+                                 tBTA_OOB_DATA *p_oob_data,
+                                 tBTA_LE_AUTH_REQ *p_auth_req,
+                                 UINT8 *p_max_key_size,
+                                 tBTA_LE_KEY_TYPE *p_init_key,
+                                 tBTA_LE_KEY_TYPE  *p_resp_key );
+
+#endif
diff --git a/rtkbt/code/bt/bta/include/bta_gatt_api.h b/rtkbt/code/bt/bta/include/bta_gatt_api.h
new file mode 100755
index 0000000..4c9f76c
--- /dev/null
+++ b/rtkbt/code/bt/bta/include/bta_gatt_api.h
@@ -0,0 +1,1291 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2003-2013 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the public interface file for BTA GATT.
+ *
+ ******************************************************************************/
+
+#ifndef BTA_GATT_API_H
+#define BTA_GATT_API_H
+
+#include "bta_api.h"
+#include "gatt_api.h"
+#include "osi/include/list.h"
+
+#ifndef     BTA_GATT_INCLUDED
+#warning BTA_GATT_INCLUDED not defined
+#define     BTA_GATT_INCLUDED     FALSE
+#endif
+
+#if ((BLE_INCLUDED == FALSE) && (BTA_GATT_INCLUDED == TRUE))
+#undef BTA_GATT_INCLUDED
+#define BTA_GATT_INCLUDED        FALSE
+#endif
+
+
+#ifndef     BTA_GATT_DEBUG
+#define     BTA_GATT_DEBUG       FALSE
+#endif
+
+/*****************************************************************************
+**  Constants and data types
+*****************************************************************************/
+/**************************
+**  Common Definitions
+***************************/
+/* GATT ID */
+typedef struct
+{
+    tBT_UUID    uuid;           /* uuid of the attribute */
+    UINT8       inst_id;        /* instance ID */
+} __attribute__((packed)) tBTA_GATT_ID;
+
+/* Success code and error codes */
+#define  BTA_GATT_OK                        GATT_SUCCESS
+#define  BTA_GATT_INVALID_HANDLE            GATT_INVALID_HANDLE                /* 0x0001 */
+#define  BTA_GATT_READ_NOT_PERMIT           GATT_READ_NOT_PERMIT               /* 0x0002 */
+#define  BTA_GATT_WRITE_NOT_PERMIT          GATT_WRITE_NOT_PERMIT              /* 0x0003 */
+#define  BTA_GATT_INVALID_PDU               GATT_INVALID_PDU                   /* 0x0004 */
+#define  BTA_GATT_INSUF_AUTHENTICATION      GATT_INSUF_AUTHENTICATION          /* 0x0005 */
+#define  BTA_GATT_REQ_NOT_SUPPORTED         GATT_REQ_NOT_SUPPORTED             /* 0x0006 */
+#define  BTA_GATT_INVALID_OFFSET            GATT_INVALID_OFFSET                /* 0x0007 */
+#define  BTA_GATT_INSUF_AUTHORIZATION       GATT_INSUF_AUTHORIZATION           /* 0x0008 */
+#define  BTA_GATT_PREPARE_Q_FULL            GATT_PREPARE_Q_FULL                /* 0x0009 */
+#define  BTA_GATT_NOT_FOUND                 GATT_NOT_FOUND                     /* 0x000a */
+#define  BTA_GATT_NOT_LONG                  GATT_NOT_LONG                      /* 0x000b */
+#define  BTA_GATT_INSUF_KEY_SIZE            GATT_INSUF_KEY_SIZE                /* 0x000c */
+#define  BTA_GATT_INVALID_ATTR_LEN          GATT_INVALID_ATTR_LEN              /* 0x000d */
+#define  BTA_GATT_ERR_UNLIKELY              GATT_ERR_UNLIKELY                  /* 0x000e */
+#define  BTA_GATT_INSUF_ENCRYPTION          GATT_INSUF_ENCRYPTION              /* 0x000f */
+#define  BTA_GATT_UNSUPPORT_GRP_TYPE        GATT_UNSUPPORT_GRP_TYPE            /* 0x0010 */
+#define  BTA_GATT_INSUF_RESOURCE            GATT_INSUF_RESOURCE                /* 0x0011 */
+
+
+#define  BTA_GATT_NO_RESOURCES              GATT_NO_RESOURCES                  /* 0x80 */
+#define  BTA_GATT_INTERNAL_ERROR            GATT_INTERNAL_ERROR                /* 0x81 */
+#define  BTA_GATT_WRONG_STATE               GATT_WRONG_STATE                   /* 0x82 */
+#define  BTA_GATT_DB_FULL                   GATT_DB_FULL                       /* 0x83 */
+#define  BTA_GATT_BUSY                      GATT_BUSY                          /* 0x84 */
+#define  BTA_GATT_ERROR                     GATT_ERROR                         /* 0x85 */
+#define  BTA_GATT_CMD_STARTED               GATT_CMD_STARTED                   /* 0x86 */
+#define  BTA_GATT_ILLEGAL_PARAMETER         GATT_ILLEGAL_PARAMETER             /* 0x87 */
+#define  BTA_GATT_PENDING                   GATT_PENDING                       /* 0x88 */
+#define  BTA_GATT_AUTH_FAIL                 GATT_AUTH_FAIL                     /* 0x89 */
+#define  BTA_GATT_MORE                      GATT_MORE                          /* 0x8a */
+#define  BTA_GATT_INVALID_CFG               GATT_INVALID_CFG                   /* 0x8b */
+#define  BTA_GATT_SERVICE_STARTED           GATT_SERVICE_STARTED               /* 0x8c */
+#define  BTA_GATT_ENCRYPED_MITM             GATT_ENCRYPED_MITM                 /* GATT_SUCCESS */
+#define  BTA_GATT_ENCRYPED_NO_MITM          GATT_ENCRYPED_NO_MITM              /* 0x8d */
+#define  BTA_GATT_NOT_ENCRYPTED             GATT_NOT_ENCRYPTED                 /* 0x8e */
+#define  BTA_GATT_CONGESTED                 GATT_CONGESTED                     /* 0x8f */
+
+#define  BTA_GATT_DUP_REG                   0x90                               /* 0x90 */
+#define  BTA_GATT_ALREADY_OPEN              0x91                               /* 0x91 */
+#define  BTA_GATT_CANCEL                    0x92                               /* 0x92 */
+
+                                             /* 0xE0 ~ 0xFC reserved for future use */
+#define  BTA_GATT_CCC_CFG_ERR                GATT_CCC_CFG_ERR     /* 0xFD Client Characteristic Configuration Descriptor Improperly Configured */
+#define  BTA_GATT_PRC_IN_PROGRESS            GATT_PRC_IN_PROGRESS /* 0xFE Procedure Already in progress */
+#define  BTA_GATT_OUT_OF_RANGE               GATT_OUT_OF_RANGE    /* 0xFFAttribute value out of range */
+
+typedef UINT8 tBTA_GATT_STATUS;
+
+#define BTA_GATT_INVALID_CONN_ID   GATT_INVALID_CONN_ID
+
+
+/* Client callback function events */
+#define BTA_GATTC_REG_EVT           0   /* GATT client is registered. */
+#define BTA_GATTC_DEREG_EVT         1   /* GATT client deregistered event */
+#define BTA_GATTC_OPEN_EVT          2   /* GATTC open request status  event */
+#define BTA_GATTC_READ_CHAR_EVT     3   /* GATT read characteristic event */
+#define BTA_GATTC_WRITE_CHAR_EVT    4   /* GATT write characteristic or char descriptor event */
+#define BTA_GATTC_CLOSE_EVT         5   /* GATTC  close request status event */
+#define BTA_GATTC_SEARCH_CMPL_EVT   6   /* GATT discovery complete event */
+#define BTA_GATTC_SEARCH_RES_EVT    7   /* GATT discovery result event */
+#define BTA_GATTC_READ_DESCR_EVT    8   /* GATT read characterisitc descriptor event */
+#define BTA_GATTC_WRITE_DESCR_EVT   9   /* GATT write characteristic descriptor event */
+#define BTA_GATTC_NOTIF_EVT         10  /* GATT attribute notification event */
+#define BTA_GATTC_PREP_WRITE_EVT    11  /* GATT prepare write  event */
+#define BTA_GATTC_EXEC_EVT          12  /* execute write complete event */
+#define BTA_GATTC_ACL_EVT           13  /* ACL up event */
+#define BTA_GATTC_CANCEL_OPEN_EVT   14  /* cancel open event */
+#define BTA_GATTC_SRVC_CHG_EVT      15  /* service change event */
+#define BTA_GATTC_LISTEN_EVT        16  /* listen event */
+#define BTA_GATTC_ENC_CMPL_CB_EVT   17  /* encryption complete callback event */
+#define BTA_GATTC_CFG_MTU_EVT       18  /* configure MTU complete event */
+#define BTA_GATTC_ADV_DATA_EVT      19  /* ADV data event */
+#define BTA_GATTC_MULT_ADV_ENB_EVT  20  /* Enable Multi ADV event */
+#define BTA_GATTC_MULT_ADV_UPD_EVT  21  /* Update parameter event */
+#define BTA_GATTC_MULT_ADV_DATA_EVT 22  /* Multi ADV data event */
+#define BTA_GATTC_MULT_ADV_DIS_EVT  23  /* Disable Multi ADV event */
+#define BTA_GATTC_CONGEST_EVT       24  /* Congestion event */
+#define BTA_GATTC_BTH_SCAN_ENB_EVT  25 /* Enable batch scan event */
+#define BTA_GATTC_BTH_SCAN_CFG_EVT  26 /* Config storage event */
+#define BTA_GATTC_BTH_SCAN_RD_EVT   27 /* Batch scan reports read event */
+#define BTA_GATTC_BTH_SCAN_THR_EVT  28 /* Batch scan threshold event */
+#define BTA_GATTC_BTH_SCAN_PARAM_EVT 29 /* Batch scan param event */
+#define BTA_GATTC_BTH_SCAN_DIS_EVT  30 /* Disable batch scan event */
+#define BTA_GATTC_SCAN_FLT_CFG_EVT  31 /* Scan filter config event */
+#define BTA_GATTC_SCAN_FLT_PARAM_EVT 32 /* Param filter event */
+#define BTA_GATTC_SCAN_FLT_STATUS_EVT 33 /* Filter status event */
+#define BTA_GATTC_ADV_VSC_EVT         34 /* ADV VSC event */
+
+typedef UINT8 tBTA_GATTC_EVT;
+
+typedef tGATT_IF tBTA_GATTC_IF;
+
+typedef struct
+{
+    UINT16              unit;       /* as UUIUD defined by SIG */
+    UINT16              descr;       /* as UUID as defined by SIG */
+    tGATT_FORMAT        format;
+    INT8                exp;
+    UINT8               name_spc;   /* The name space of the description */
+}tBTA_GATT_CHAR_PRES;
+
+#define BTA_GATT_CLT_CONFIG_NONE               GATT_CLT_CONFIG_NONE         /* 0x0000    */
+#define BTA_GATT_CLT_CONFIG_NOTIFICATION       GATT_CLT_CONFIG_NOTIFICATION /* 0x0001 */
+#define BTA_GATT_CLT_CONFIG_INDICATION         GATT_CLT_CONFIG_INDICATION   /* 0x0002 */
+typedef UINT16  tBTA_GATT_CLT_CHAR_CONFIG;
+
+/* characteristic descriptor: server configuration value
+*/
+#define BTA_GATT_SVR_CONFIG_NONE            GATT_SVR_CONFIG_NONE            /* 0x0000 */
+#define BTA_GATT_SVR_CONFIG_BROADCAST       GATT_SVR_CONFIG_BROADCAST       /*  0x0001 */
+typedef UINT16  tBTA_GATT_SVR_CHAR_CONFIG;
+
+/* Characteristic Aggregate Format attribute value
+*/
+#define BTA_GATT_AGGR_HANDLE_NUM_MAX        10
+typedef struct
+{
+    UINT8                   num_handle;
+    UINT16                  handle_list[BTA_GATT_AGGR_HANDLE_NUM_MAX];
+} tBTA_GATT_CHAR_AGGRE;
+typedef tGATT_VALID_RANGE           tBTA_GATT_VALID_RANGE;
+
+typedef struct
+{
+    UINT16  len;
+    UINT8   *p_value;
+}tBTA_GATT_UNFMT;
+
+#define BTA_GATT_MAX_ATTR_LEN       GATT_MAX_ATTR_LEN
+
+#define BTA_GATTC_TYPE_WRITE             GATT_WRITE
+#define BTA_GATTC_TYPE_WRITE_NO_RSP      GATT_WRITE_NO_RSP
+typedef UINT8 tBTA_GATTC_WRITE_TYPE;
+
+#define BTA_GATT_CONN_UNKNOWN                   0
+#define BTA_GATT_CONN_L2C_FAILURE               GATT_CONN_L2C_FAILURE         /* general l2cap resource failure */
+#define BTA_GATT_CONN_TIMEOUT                   GATT_CONN_TIMEOUT             /* 0x08 connection timeout  */
+#define BTA_GATT_CONN_TERMINATE_PEER_USER       GATT_CONN_TERMINATE_PEER_USER /* 0x13 connection terminate by peer user  */
+#define BTA_GATT_CONN_TERMINATE_LOCAL_HOST      GATT_CONN_TERMINATE_LOCAL_HOST/* 0x16 connectionterminated by local host  */
+#define BTA_GATT_CONN_FAIL_ESTABLISH            GATT_CONN_FAIL_ESTABLISH      /* 0x03E connection fail to establish  */
+#define BTA_GATT_CONN_LMP_TIMEOUT               GATT_CONN_LMP_TIMEOUT          /* 0x22 connection fail for LMP response tout */
+#define BTA_GATT_CONN_CANCEL                    GATT_CONN_CANCEL               /* 0x0100 L2CAP connection cancelled  */
+#define BTA_GATT_CONN_NONE                      0x0101                          /* 0x0101 no connection to cancel  */
+typedef UINT16 tBTA_GATT_REASON;
+
+#define BTA_GATTC_MULTI_MAX    GATT_MAX_READ_MULTI_HANDLES
+
+typedef struct
+{
+    UINT8                       num_attr;
+    UINT16                      handles[BTA_GATTC_MULTI_MAX];
+}tBTA_GATTC_MULTI;
+
+#define BTA_GATT_AUTH_REQ_NONE           GATT_AUTH_REQ_NONE
+#define BTA_GATT_AUTH_REQ_NO_MITM        GATT_AUTH_REQ_NO_MITM            /* unauthenticated encryption */
+#define BTA_GATT_AUTH_REQ_MITM           GATT_AUTH_REQ_MITM               /* authenticated encryption */
+#define BTA_GATT_AUTH_REQ_SIGNED_NO_MITM GATT_AUTH_REQ_SIGNED_NO_MITM
+#define BTA_GATT_AUTH_REQ_SIGNED_MITM    GATT_AUTH_REQ_SIGNED_MITM
+
+typedef tGATT_AUTH_REQ tBTA_GATT_AUTH_REQ;
+
+enum
+{
+    BTA_GATTC_ATTR_TYPE_INCL_SRVC,
+    BTA_GATTC_ATTR_TYPE_CHAR,
+    BTA_GATTC_ATTR_TYPE_CHAR_DESCR,
+    BTA_GATTC_ATTR_TYPE_SRVC
+};
+typedef UINT8 tBTA_GATTC_ATTR_TYPE;
+
+
+typedef struct
+{
+    tBT_UUID    uuid;
+    UINT16      s_handle;
+    UINT16      e_handle;   /* used for service only */
+    UINT8       attr_type;
+    UINT8       id;
+    UINT8       prop;       /* used when attribute type is characteristic */
+    BOOLEAN     is_primary; /* used when attribute type is service */
+    UINT16      incl_srvc_handle; /* used when attribute type is included service */
+}tBTA_GATTC_NV_ATTR;
+
+/* callback data structure */
+typedef struct
+{
+    tBTA_GATT_STATUS    status;
+    tBTA_GATTC_IF       client_if;
+    tBT_UUID            app_uuid;
+}tBTA_GATTC_REG;
+
+typedef struct
+{
+    UINT16              conn_id;
+    tBTA_GATT_STATUS    status;
+    UINT16              handle;
+    tBTA_GATT_UNFMT  *p_value;
+}tBTA_GATTC_READ;
+
+typedef struct
+{
+    UINT16              conn_id;
+    tBTA_GATT_STATUS    status;
+    UINT16              handle;
+}tBTA_GATTC_WRITE;
+
+typedef struct
+{
+    UINT16              conn_id;
+    tBTA_GATT_STATUS    status;
+}tBTA_GATTC_EXEC_CMPL;
+
+typedef struct
+{
+    UINT16              conn_id;
+    tBTA_GATT_STATUS    status;
+}tBTA_GATTC_SEARCH_CMPL;
+
+typedef struct
+{
+    UINT16              conn_id;
+    tBTA_GATT_ID   service_uuid;
+}tBTA_GATTC_SRVC_RES;
+
+typedef struct
+{
+    UINT16              conn_id;
+    tBTA_GATT_STATUS    status;
+    UINT16              mtu;
+}tBTA_GATTC_CFG_MTU;
+
+typedef struct
+{
+    tBTA_GATT_STATUS    status;
+    UINT16              conn_id;
+    tBTA_GATTC_IF       client_if;
+    BD_ADDR             remote_bda;
+    tBTA_TRANSPORT      transport;
+    UINT16              mtu;
+}tBTA_GATTC_OPEN;
+
+typedef struct
+{
+    tBTA_GATT_STATUS    status;
+    UINT16              conn_id;
+    tBTA_GATTC_IF       client_if;
+    BD_ADDR             remote_bda;
+    tBTA_GATT_REASON    reason;         /* disconnect reason code, not useful when connect event is reported */
+}tBTA_GATTC_CLOSE;
+
+typedef struct
+{
+    UINT16              conn_id;
+    BD_ADDR             bda;
+    UINT16              handle;
+    UINT16              len;
+    UINT8               value[BTA_GATT_MAX_ATTR_LEN];
+    BOOLEAN             is_notify;
+}tBTA_GATTC_NOTIFY;
+
+typedef struct
+{
+    UINT16 conn_id;
+    BOOLEAN congested; /* congestion indicator */
+}tBTA_GATTC_CONGEST;
+
+typedef struct
+{
+    tBTA_GATT_STATUS        status;
+    tBTA_GATTC_IF           client_if;
+    UINT16                  conn_id;
+    BD_ADDR                 remote_bda;
+}tBTA_GATTC_OPEN_CLOSE;
+
+typedef struct
+{
+    tBTA_GATTC_IF       client_if;
+    BD_ADDR             remote_bda;
+}tBTA_GATTC_ENC_CMPL_CB;
+
+typedef union
+{
+    tBTA_GATT_STATUS        status;
+
+    tBTA_GATTC_SEARCH_CMPL  search_cmpl;          /* discovery complete */
+    tBTA_GATTC_SRVC_RES     srvc_res;          /* discovery result */
+    tBTA_GATTC_REG          reg_oper;              /* registration data */
+    tBTA_GATTC_OPEN         open;
+    tBTA_GATTC_CLOSE        close;
+    tBTA_GATTC_READ         read;             /* read attribute/descriptor data */
+    tBTA_GATTC_WRITE        write;            /* write complete data */
+    tBTA_GATTC_EXEC_CMPL    exec_cmpl;       /*  execute complete */
+    tBTA_GATTC_NOTIFY       notify;           /* notification/indication event data */
+    tBTA_GATTC_ENC_CMPL_CB  enc_cmpl;
+    BD_ADDR                 remote_bda;     /* service change event */
+    tBTA_GATTC_CFG_MTU      cfg_mtu;        /* configure MTU operation */
+    tBTA_GATTC_CONGEST      congest;
+} tBTA_GATTC;
+
+/* GATTC enable callback function */
+typedef void (tBTA_GATTC_ENB_CBACK)(tBTA_GATT_STATUS status);
+
+/* Client callback function */
+typedef void (tBTA_GATTC_CBACK)(tBTA_GATTC_EVT event, tBTA_GATTC *p_data);
+
+
+/* GATT Server Data Structure */
+/* Server callback function events */
+#define BTA_GATTS_REG_EVT                               0
+#define BTA_GATTS_READ_EVT                              GATTS_REQ_TYPE_READ         /* 1 */
+#define BTA_GATTS_WRITE_EVT                             GATTS_REQ_TYPE_WRITE        /* 2 */
+#define BTA_GATTS_EXEC_WRITE_EVT                        GATTS_REQ_TYPE_WRITE_EXEC   /* 3 */
+#define BTA_GATTS_MTU_EVT                               GATTS_REQ_TYPE_MTU          /* 4 */
+#define BTA_GATTS_CONF_EVT                              GATTS_REQ_TYPE_CONF         /* 5 */
+#define BTA_GATTS_DEREG_EVT                             6
+#define BTA_GATTS_CREATE_EVT                            7
+#define BTA_GATTS_ADD_INCL_SRVC_EVT                     8
+#define BTA_GATTS_ADD_CHAR_EVT                          9
+#define BTA_GATTS_ADD_CHAR_DESCR_EVT                    10
+#define BTA_GATTS_DELELTE_EVT                           11
+#define BTA_GATTS_START_EVT                             12
+#define BTA_GATTS_STOP_EVT                              13
+#define BTA_GATTS_CONNECT_EVT                           14
+#define BTA_GATTS_DISCONNECT_EVT                        15
+#define BTA_GATTS_OPEN_EVT                              16
+#define BTA_GATTS_CANCEL_OPEN_EVT                       17
+#define BTA_GATTS_CLOSE_EVT                             18
+#define BTA_GATTS_LISTEN_EVT                            19
+#define BTA_GATTS_CONGEST_EVT                           20
+
+typedef UINT8  tBTA_GATTS_EVT;
+typedef tGATT_IF tBTA_GATTS_IF;
+
+/* Attribute permissions
+*/
+#define BTA_GATT_PERM_READ              GATT_PERM_READ              /* bit 0 -  0x0001 */
+#define BTA_GATT_PERM_READ_ENCRYPTED    GATT_PERM_READ_ENCRYPTED    /* bit 1 -  0x0002 */
+#define BTA_GATT_PERM_READ_ENC_MITM     GATT_PERM_READ_ENC_MITM     /* bit 2 -  0x0004 */
+#define BTA_GATT_PERM_WRITE             GATT_PERM_WRITE             /* bit 4 -  0x0010 */
+#define BTA_GATT_PERM_WRITE_ENCRYPTED   GATT_PERM_WRITE_ENCRYPTED   /* bit 5 -  0x0020 */
+#define BTA_GATT_PERM_WRITE_ENC_MITM    GATT_PERM_WRITE_ENC_MITM    /* bit 6 -  0x0040 */
+#define BTA_GATT_PERM_WRITE_SIGNED      GATT_PERM_WRITE_SIGNED      /* bit 7 -  0x0080 */
+#define BTA_GATT_PERM_WRITE_SIGNED_MITM GATT_PERM_WRITE_SIGNED_MITM /* bit 8 -  0x0100 */
+typedef UINT16 tBTA_GATT_PERM;
+
+#define BTA_GATTS_INVALID_APP   0xff
+
+#define BTA_GATTS_INVALID_IF    0
+
+/* definition of characteristic properties */
+#define BTA_GATT_CHAR_PROP_BIT_BROADCAST    GATT_CHAR_PROP_BIT_BROADCAST    /* 0x01 */
+#define BTA_GATT_CHAR_PROP_BIT_READ         GATT_CHAR_PROP_BIT_READ    /* 0x02 */
+#define BTA_GATT_CHAR_PROP_BIT_WRITE_NR     GATT_CHAR_PROP_BIT_WRITE_NR    /* 0x04 */
+#define BTA_GATT_CHAR_PROP_BIT_WRITE        GATT_CHAR_PROP_BIT_WRITE       /* 0x08 */
+#define BTA_GATT_CHAR_PROP_BIT_NOTIFY       GATT_CHAR_PROP_BIT_NOTIFY      /* 0x10 */
+#define BTA_GATT_CHAR_PROP_BIT_INDICATE     GATT_CHAR_PROP_BIT_INDICATE    /* 0x20 */
+#define BTA_GATT_CHAR_PROP_BIT_AUTH         GATT_CHAR_PROP_BIT_AUTH        /* 0x40 */
+#define BTA_GATT_CHAR_PROP_BIT_EXT_PROP     GATT_CHAR_PROP_BIT_EXT_PROP    /* 0x80 */
+typedef UINT8 tBTA_GATT_CHAR_PROP;
+
+#ifndef BTA_GATTC_CHAR_DESCR_MAX
+#define BTA_GATTC_CHAR_DESCR_MAX        7
+#endif
+
+/***********************  NV callback Data Definitions   **********************
+*/
+typedef struct
+{
+    tBT_UUID app_uuid128;
+    tBT_UUID svc_uuid;
+    UINT16   svc_inst;
+    UINT16   s_handle;
+    UINT16   e_handle;
+    BOOLEAN  is_primary;      /* primary service or secondary */
+} tBTA_GATTS_HNDL_RANGE;
+
+#define BTA_GATTS_SRV_CHG_CMD_ADD_CLIENT       GATTS_SRV_CHG_CMD_ADD_CLIENT
+#define BTA_GATTS_SRV_CHG_CMD_UPDATE_CLIENT    GATTS_SRV_CHG_CMD_UPDATE_CLIENT
+#define BTA_GATTS_SRV_CHG_CMD_REMOVE_CLIENT    GATTS_SRV_CHG_CMD_REMOVE_CLIENT
+#define BTA_GATTS_SRV_CHG_CMD_READ_NUM_CLENTS  GATTS_SRV_CHG_CMD_READ_NUM_CLENTS
+#define BTA_GATTS_SRV_CHG_CMD_READ_CLENT       GATTS_SRV_CHG_CMD_READ_CLENT
+typedef tGATTS_SRV_CHG_CMD tBTA_GATTS_SRV_CHG_CMD;
+
+typedef tGATTS_SRV_CHG     tBTA_GATTS_SRV_CHG;
+typedef tGATTS_SRV_CHG_REQ tBTA_GATTS_SRV_CHG_REQ;
+typedef tGATTS_SRV_CHG_RSP tBTA_GATTS_SRV_CHG_RSP;
+
+#define BTA_GATT_TRANSPORT_LE       GATT_TRANSPORT_LE
+#define BTA_GATT_TRANSPORT_BR_EDR   GATT_TRANSPORT_BR_EDR
+#define BTA_GATT_TRANSPORT_LE_BR_EDR    GATT_TRANSPORT_LE_BR_EDR
+typedef UINT8 tBTA_GATT_TRANSPORT;
+
+/* attribute value */
+typedef tGATT_VALUE tBTA_GATT_VALUE;
+
+/* attribute response data */
+typedef tGATTS_RSP tBTA_GATTS_RSP;
+
+/* attribute request data from the client */
+#define BTA_GATT_PREP_WRITE_CANCEL   0x00
+#define BTA_GATT_PREP_WRITE_EXEC     0x01
+typedef tGATT_EXEC_FLAG tBTA_GATT_EXEC_FLAG;
+
+/* read request always based on UUID */
+typedef tGATT_READ_REQ tTA_GBATT_READ_REQ;
+
+/* write request data */
+typedef tGATT_WRITE_REQ tBTA_GATT_WRITE_REQ;
+
+/* callback data for server access request from client */
+typedef tGATTS_DATA tBTA_GATTS_REQ_DATA;
+
+typedef struct
+{
+    tBTA_GATT_STATUS    status;
+    BD_ADDR             remote_bda;
+    UINT32              trans_id;
+    UINT16              conn_id;
+    tBTA_GATTS_REQ_DATA *p_data;
+}tBTA_GATTS_REQ;
+
+typedef struct
+{
+    tBTA_GATTS_IF       server_if;
+    tBTA_GATT_STATUS    status;
+    tBT_UUID            uuid;
+}tBTA_GATTS_REG_OPER;
+
+
+typedef struct
+{
+    tBTA_GATTS_IF       server_if;
+    UINT16              service_id;
+    UINT16              svc_instance;
+    BOOLEAN             is_primary;
+    tBTA_GATT_STATUS    status;
+    tBT_UUID            uuid;
+}tBTA_GATTS_CREATE;
+
+typedef struct
+{
+    tBTA_GATTS_IF       server_if;
+    UINT16              service_id;
+    UINT16              attr_id;
+    tBTA_GATT_STATUS    status;
+    tBT_UUID            char_uuid;
+}tBTA_GATTS_ADD_RESULT;
+
+typedef struct
+{
+    tBTA_GATTS_IF       server_if;
+    UINT16              service_id;
+    tBTA_GATT_STATUS    status;
+}tBTA_GATTS_SRVC_OPER;
+
+
+typedef struct
+{
+    tBTA_GATTS_IF       server_if;
+    BD_ADDR             remote_bda;
+    UINT16              conn_id;
+    tBTA_GATT_REASON    reason; /* report disconnect reason */
+    tBTA_GATT_TRANSPORT transport;
+}tBTA_GATTS_CONN;
+
+typedef struct
+{
+    UINT16 conn_id;
+    BOOLEAN congested; /* report channel congestion indicator */
+}tBTA_GATTS_CONGEST;
+
+typedef struct
+{
+    UINT16 conn_id; /* connection ID */
+    tBTA_GATT_STATUS status; /* notification/indication status */
+}tBTA_GATTS_CONF;
+
+/* GATTS callback data */
+typedef union
+{
+    tBTA_GATTS_REG_OPER     reg_oper;
+    tBTA_GATTS_CREATE       create;
+    tBTA_GATTS_SRVC_OPER    srvc_oper;
+    tBTA_GATT_STATUS        status;      /* BTA_GATTS_LISTEN_EVT */
+    tBTA_GATTS_ADD_RESULT   add_result;  /* add included service: BTA_GATTS_ADD_INCL_SRVC_EVT
+                                           add char : BTA_GATTS_ADD_CHAR_EVT
+                                           add char descriptor: BTA_GATTS_ADD_CHAR_DESCR_EVT */
+    tBTA_GATTS_REQ          req_data;
+    tBTA_GATTS_CONN         conn;       /* BTA_GATTS_CONN_EVT */
+    tBTA_GATTS_CONGEST      congest;    /* BTA_GATTS_CONGEST_EVT callback data */
+    tBTA_GATTS_CONF         confirm;    /* BTA_GATTS_CONF_EVT callback data */
+}tBTA_GATTS;
+
+/* GATTS enable callback function */
+typedef void (tBTA_GATTS_ENB_CBACK)(tBTA_GATT_STATUS status);
+
+/* Server callback function */
+typedef void (tBTA_GATTS_CBACK)(tBTA_GATTS_EVT event,  tBTA_GATTS *p_data);
+
+typedef struct
+{
+    tBT_UUID                uuid;
+    BOOLEAN                 is_primary;
+    UINT16                  handle;
+    UINT16                  s_handle;
+    UINT16                  e_handle;
+    list_t                 *characteristics; /* list of tBTA_GATTC_CHARACTERISTIC */
+    list_t                 *included_svc; /* list of tBTA_GATTC_INCLUDED_SVC */
+} __attribute__((packed)) tBTA_GATTC_SERVICE;
+
+typedef struct
+{
+    tBT_UUID                uuid;
+    UINT16                  handle;
+    tBTA_GATT_CHAR_PROP     properties;
+    tBTA_GATTC_SERVICE     *service; /* owning service*/
+    list_t                 *descriptors; /* list of tBTA_GATTC_DESCRIPTOR */
+} __attribute__((packed)) tBTA_GATTC_CHARACTERISTIC;
+
+typedef struct
+{
+    tBT_UUID                    uuid;
+    UINT16                      handle;
+    tBTA_GATTC_CHARACTERISTIC  *characteristic; /* owning characteristic */
+} __attribute__((packed)) tBTA_GATTC_DESCRIPTOR;
+
+typedef struct
+{
+    tBT_UUID                uuid;
+    UINT16                  handle;
+    tBTA_GATTC_SERVICE     *owning_service; /* owning service*/
+    tBTA_GATTC_SERVICE     *included_service;
+} __attribute__((packed)) tBTA_GATTC_INCLUDED_SVC;
+
+/*****************************************************************************
+**  External Function Declarations
+*****************************************************************************/
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+/**************************
+**  Client Functions
+***************************/
+
+/*******************************************************************************
+**
+** Function         BTA_GATTC_Disable
+**
+** Description      This function is called to disable the GATTC module
+**
+** Parameters       None.
+**
+** Returns          None
+**
+*******************************************************************************/
+extern void BTA_GATTC_Disable(void);
+
+/*******************************************************************************
+**
+** Function         BTA_GATTC_AppRegister
+**
+** Description      This function is called to register application callbacks
+**                    with BTA GATTC module.
+**
+** Parameters       p_app_uuid - applicaiton UUID
+**                  p_client_cb - pointer to the application callback function.
+**
+** Returns          None
+**
+*******************************************************************************/
+extern void BTA_GATTC_AppRegister(tBT_UUID *p_app_uuid, tBTA_GATTC_CBACK *p_client_cb);
+
+/*******************************************************************************
+**
+** Function         BTA_GATTC_AppDeregister
+**
+** Description      This function is called to deregister an application
+**                  from BTA GATTC module.
+**
+** Parameters       client_if - client interface identifier.
+**
+** Returns          None
+**
+*******************************************************************************/
+extern void BTA_GATTC_AppDeregister (tBTA_GATTC_IF client_if);
+
+/*******************************************************************************
+**
+** Function         BTA_GATTC_Open
+**
+** Description      Open a direct connection or add a background auto connection
+**                  bd address
+**
+** Parameters       client_if: server interface.
+**                  remote_bda: remote device BD address.
+**                  is_direct: direct connection or background auto connection
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_GATTC_Open(tBTA_GATTC_IF client_if, BD_ADDR remote_bda,
+                           BOOLEAN is_direct, tBTA_GATT_TRANSPORT transport);
+
+/*******************************************************************************
+**
+** Function         BTA_GATTC_CancelOpen
+**
+** Description      Open a direct connection or add a background auto connection
+**                  bd address
+**
+** Parameters       client_if: server interface.
+**                  remote_bda: remote device BD address.
+**                  is_direct: direct connection or background auto connection
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_GATTC_CancelOpen(tBTA_GATTC_IF client_if, BD_ADDR remote_bda, BOOLEAN is_direct);
+
+/*******************************************************************************
+**
+** Function         BTA_GATTC_Close
+**
+** Description      Close a connection to a GATT server.
+**
+** Parameters       conn_id: connectino ID to be closed.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_GATTC_Close(UINT16 conn_id);
+
+/*******************************************************************************
+**
+** Function         BTA_GATTC_ServiceSearchRequest
+**
+** Description      This function is called to request a GATT service discovery
+**                    on a GATT server. This function report service search result
+**                  by a callback event, and followed by a service search complete
+**                  event.
+**
+** Parameters       conn_id: connection ID.
+**                  p_srvc_uuid: a UUID of the service application is interested in.
+**                              If Null, discover for all services.
+**
+** Returns          None
+**
+*******************************************************************************/
+extern void BTA_GATTC_ServiceSearchRequest(UINT16 conn_id, tBT_UUID *p_srvc_uuid);
+
+/*******************************************************************************
+**
+** Function         BTA_GATTC_GetServices
+**
+** Description      This function is called to find the services on the given server.
+**
+** Parameters       conn_id: connection ID which identify the server.
+**
+** Returns          returns list_t of tBTA_GATTC_SERVICE or NULL.
+**
+*******************************************************************************/
+extern const list_t* BTA_GATTC_GetServices(UINT16 conn_id);
+
+/*******************************************************************************
+**
+** Function         BTA_GATTC_GetCharacteristic
+**
+** Description      This function is called to find the characteristic on the given server.
+**
+** Parameters       conn_id: connection ID which identify the server.
+**                  handle: characteristic handle
+**
+** Returns          returns pointer to tBTA_GATTC_CHARACTERISTIC or NULL.
+**
+*******************************************************************************/
+extern const tBTA_GATTC_CHARACTERISTIC* BTA_GATTC_GetCharacteristic(UINT16 conn_id, UINT16 handle);
+
+/*******************************************************************************
+**
+** Function         BTA_GATTC_GetDescriptor
+**
+** Description      This function is called to find the characteristic on the given server.
+**
+** Parameters       conn_id: connection ID which identify the server.
+**                  handle: descriptor handle
+**
+** Returns          returns pointer to tBTA_GATTC_DESCRIPTOR or NULL.
+**
+*******************************************************************************/
+extern const tBTA_GATTC_DESCRIPTOR* BTA_GATTC_GetDescriptor(UINT16 conn_id, UINT16 handle);
+
+/*******************************************************************************
+**
+** Function         BTA_GATTC_GetGattDb
+**
+** Description      This function is called to get gatt db.
+**
+** Parameters       conn_id: connection ID which identify the server.
+**                  db: output parameter which will contain gatt db copy.
+**                      Caller is responsible for freeing it.
+**                  count: number of elements in db.
+**
+*******************************************************************************/
+extern void BTA_GATTC_GetGattDb(UINT16 conn_id, UINT16 start_handle, UINT16 end_handle,
+                                btgatt_db_element_t **db, int *count);
+
+/*******************************************************************************
+**
+** Function         BTA_GATTC_ReadCharacteristic
+**
+** Description      This function is called to read a characteristics value
+**
+** Parameters       conn_id - connectino ID.
+**                  handle - characteritic handle to read.
+**
+** Returns          None
+**
+*******************************************************************************/
+void BTA_GATTC_ReadCharacteristic(UINT16 conn_id, UINT16 handle, tBTA_GATT_AUTH_REQ auth_req);
+
+/*******************************************************************************
+**
+** Function         BTA_GATTC_ReadCharDescr
+**
+** Description      This function is called to read a descriptor value.
+**
+** Parameters       conn_id - connection ID.
+**                  handle - descriptor handle to read.
+**
+** Returns          None
+**
+*******************************************************************************/
+void BTA_GATTC_ReadCharDescr (UINT16 conn_id, UINT16 handle, tBTA_GATT_AUTH_REQ auth_req);
+
+/*******************************************************************************
+**
+** Function         BTA_GATTC_WriteCharValue
+**
+** Description      This function is called to write characteristic value.
+**
+** Parameters       conn_id - connection ID.
+**                  handle - characteristic handle to write.
+**                  write_type - type of write.
+**                  len: length of the data to be written.
+**                  p_value - the value to be written.
+**
+** Returns          None
+**
+*******************************************************************************/
+void BTA_GATTC_WriteCharValue ( UINT16 conn_id,
+                                UINT16 handle,
+                                tBTA_GATTC_WRITE_TYPE  write_type,
+                                UINT16 len,
+                                UINT8 *p_value,
+                                tBTA_GATT_AUTH_REQ auth_req);
+
+/*******************************************************************************
+**
+** Function         BTA_GATTC_WriteCharDescr
+**
+** Description      This function is called to write descriptor value.
+**
+** Parameters       conn_id - connection ID
+**                  handle - descriptor handle to write.
+**                  write_type - type of write.
+**                  p_value - the value to be written.
+**
+** Returns          None
+**
+*******************************************************************************/
+void BTA_GATTC_WriteCharDescr (UINT16 conn_id,
+                               UINT16 handle,
+                               tBTA_GATTC_WRITE_TYPE  write_type,
+                               tBTA_GATT_UNFMT      *p_data,
+                               tBTA_GATT_AUTH_REQ auth_req);
+
+/*******************************************************************************
+**
+** Function         BTA_GATTC_SendIndConfirm
+**
+** Description      This function is called to send handle value confirmation.
+**
+** Parameters       conn_id - connection ID.
+**                  handle - characteristic handle to confirm.
+**
+** Returns          None
+**
+*******************************************************************************/
+extern void BTA_GATTC_SendIndConfirm (UINT16 conn_id, UINT16 handle);
+
+/*******************************************************************************
+**
+** Function         BTA_GATTC_RegisterForNotifications
+**
+** Description      This function is called to register for notification of a service.
+**
+** Parameters       client_if - client interface.
+**                  remote_bda - target GATT server.
+**                  handle - GATT characteristic handle.
+**
+** Returns          OK if registration succeed, otherwise failed.
+**
+*******************************************************************************/
+extern tBTA_GATT_STATUS BTA_GATTC_RegisterForNotifications (tBTA_GATTC_IF      client_if,
+                                                            BD_ADDR            remote_bda,
+                                                            UINT16             handle);
+
+/*******************************************************************************
+**
+** Function         BTA_GATTC_DeregisterForNotifications
+**
+** Description      This function is called to de-register for notification of a servbice.
+**
+** Parameters       client_if - client interface.
+**                  remote_bda - target GATT server.
+**                  handle - GATT characteristic handle.
+**
+** Returns          OK if deregistration succeed, otherwise failed.
+**
+*******************************************************************************/
+extern tBTA_GATT_STATUS BTA_GATTC_DeregisterForNotifications (tBTA_GATTC_IF      client_if,
+                                                              BD_ADDR            remote_bda,
+                                                              UINT16             handle);
+
+/*******************************************************************************
+**
+** Function         BTA_GATTC_PrepareWrite
+**
+** Description      This function is called to prepare write a characteristic value.
+**
+** Parameters       conn_id - connection ID.
+**                  handle - GATT characteritic handle.
+**                  offset - offset of the write value.
+**                  len - length of the data to be written.
+**                  p_value - the value to be written.
+**
+** Returns          None
+**
+*******************************************************************************/
+extern void BTA_GATTC_PrepareWrite  (UINT16 conn_id,
+                                     UINT16 handle,
+                                     UINT16 offset,
+                                     UINT16 len,
+                                     UINT8 *p_value,
+                                     tBTA_GATT_AUTH_REQ auth_req);
+
+/*******************************************************************************
+**
+** Function         BTA_GATTC_ExecuteWrite
+**
+** Description      This function is called to execute write a prepare write sequence.
+**
+** Parameters       conn_id - connection ID.
+**                    is_execute - execute or cancel.
+**
+** Returns          None
+**
+*******************************************************************************/
+extern void BTA_GATTC_ExecuteWrite  (UINT16 conn_id, BOOLEAN is_execute);
+
+/*******************************************************************************
+**
+** Function         BTA_GATTC_ReadMultiple
+**
+** Description      This function is called to read multiple characteristic or
+**                  characteristic descriptors.
+**
+** Parameters       conn_id - connectino ID.
+**                    p_read_multi - read multiple parameters.
+**
+** Returns          None
+**
+*******************************************************************************/
+extern void BTA_GATTC_ReadMultiple(UINT16 conn_id, tBTA_GATTC_MULTI *p_read_multi,
+                                   tBTA_GATT_AUTH_REQ auth_req);
+
+
+/*******************************************************************************
+**
+** Function         BTA_GATTC_Refresh
+**
+** Description      Refresh the server cache of the remote device
+**
+** Parameters       remote_bda: remote device BD address.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_GATTC_Refresh(BD_ADDR remote_bda);
+
+
+/*******************************************************************************
+**
+** Function         BTA_GATTC_Listen
+**
+** Description      Start advertisement to listen for connection request.
+**
+** Parameters       client_if: server interface.
+**                  start: to start or stop listening for connection
+**                  remote_bda: remote device BD address, if listen to all device
+**                              use NULL.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_GATTC_Listen(tBTA_GATTC_IF client_if, BOOLEAN start, BD_ADDR_PTR target_bda);
+
+/*******************************************************************************
+**
+** Function         BTA_GATTC_Broadcast
+**
+** Description      Start broadcasting (non-connectable advertisements)
+**
+** Parameters       client_if: client interface.
+**                  start: to start or stop listening for connection
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_GATTC_Broadcast(tBTA_GATTC_IF client_if, BOOLEAN start);
+
+
+/*******************************************************************************
+**
+** Function         BTA_GATTC_ConfigureMTU
+**
+** Description      Configure the MTU size in the GATT channel. This can be done
+**                  only once per connection.
+**
+** Parameters       conn_id: connection ID.
+**                  mtu: desired MTU size to use.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_GATTC_ConfigureMTU (UINT16 conn_id, UINT16 mtu);
+
+/*******************************************************************************
+**  BTA GATT Server API
+********************************************************************************/
+
+/*******************************************************************************
+**
+** Function         BTA_GATTS_Init
+**
+** Description      This function is called to initalize GATTS module
+**
+** Parameters       None
+**
+** Returns          None
+**
+*******************************************************************************/
+extern void BTA_GATTS_Init();
+
+/*******************************************************************************
+**
+** Function         BTA_GATTS_Disable
+**
+** Description      This function is called to disable GATTS module
+**
+** Parameters       None.
+**
+** Returns          None
+**
+*******************************************************************************/
+extern void BTA_GATTS_Disable(void);
+
+/*******************************************************************************
+**
+** Function         BTA_GATTS_AppRegister
+**
+** Description      This function is called to register application callbacks
+**                    with BTA GATTS module.
+**
+** Parameters       p_app_uuid - applicaiton UUID
+**                  p_cback - pointer to the application callback function.
+**
+** Returns          None
+**
+*******************************************************************************/
+extern void BTA_GATTS_AppRegister(tBT_UUID *p_app_uuid, tBTA_GATTS_CBACK *p_cback);
+
+
+/*******************************************************************************
+**
+** Function         BTA_GATTS_AppDeregister
+**
+** Description      De-register with BTA GATT Server.
+**
+** Parameters       server_if: server interface
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_GATTS_AppDeregister(tBTA_GATTS_IF server_if);
+
+/*******************************************************************************
+**
+** Function         BTA_GATTS_CreateService
+**
+** Description      Create a service. When service creation is done, a callback
+**                  event BTA_GATTS_CREATE_SRVC_EVT is called to report status
+**                  and service ID to the profile. The service ID obtained in
+**                  the callback function needs to be used when adding included
+**                  service and characteristics/descriptors into the service.
+**
+** Parameters       server_if: server interface.
+**                  p_service_uuid: service UUID.
+**                  inst: instance ID number of this service.
+**                  num_handle: numble of handle requessted for this service.
+**                  is_primary: is this service a primary one or not.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_GATTS_CreateService(tBTA_GATTS_IF server_if, tBT_UUID *p_service_uuid,
+                                    UINT8 inst, UINT16 num_handle, BOOLEAN is_primary);
+
+/*******************************************************************************
+**
+** Function         BTA_GATTS_AddIncludeService
+**
+** Description      This function is called to add an included service. After included
+**                  service is included, a callback event BTA_GATTS_ADD_INCL_SRVC_EVT
+**                  is reported the included service ID.
+**
+** Parameters       service_id: service ID to which this included service is to
+**                              be added.
+**                  included_service_id: the service ID to be included.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_GATTS_AddIncludeService(UINT16 service_id, UINT16 included_service_id);
+
+/*******************************************************************************
+**
+** Function         BTA_GATTS_AddCharacteristic
+**
+** Description      This function is called to add a characteristic into a service.
+**
+** Parameters       service_id: service ID to which this included service is to
+**                              be added.
+**                  p_char_uuid : Characteristic UUID.
+**                  perm      : Characteristic value declaration attribute permission.
+**                  property  : Characteristic Properties
+**
+** Returns          None
+**
+*******************************************************************************/
+extern void BTA_GATTS_AddCharacteristic (UINT16 service_id,  tBT_UUID   *p_char_uuid,
+                                         tBTA_GATT_PERM perm, tBTA_GATT_CHAR_PROP property);
+
+/*******************************************************************************
+**
+** Function         BTA_GATTS_AddCharDescriptor
+**
+** Description      This function is called to add characteristic descriptor. When
+**                  it's done, a callback event BTA_GATTS_ADD_DESCR_EVT is called
+**                  to report the status and an ID number for this descriptor.
+**
+** Parameters       service_id: service ID to which this charatceristic descriptor is to
+**                              be added.
+**                  perm: descriptor access permission.
+**                  p_descr_uuid: descriptor UUID.
+**                  p_descr_params: descriptor value if it's read only descriptor.
+**
+** Returns          returns status.
+**
+*******************************************************************************/
+extern void BTA_GATTS_AddCharDescriptor (UINT16 service_id,
+                                         tBTA_GATT_PERM perm,
+                                         tBT_UUID  * p_descr_uuid);
+
+/*******************************************************************************
+**
+** Function         BTA_GATTS_DeleteService
+**
+** Description      This function is called to delete a service. When this is done,
+**                  a callback event BTA_GATTS_DELETE_EVT is report with the status.
+**
+** Parameters       service_id: service_id to be deleted.
+**
+** Returns          returns none.
+**
+*******************************************************************************/
+extern void  BTA_GATTS_DeleteService(UINT16 service_id);
+
+/*******************************************************************************
+**
+** Function         BTA_GATTS_StartService
+**
+** Description      This function is called to start a service.
+**
+** Parameters       service_id: the service ID to be started.
+**                  sup_transport: supported trasnport.
+**
+** Returns          None.
+**
+*******************************************************************************/
+extern void  BTA_GATTS_StartService(UINT16 service_id, tBTA_GATT_TRANSPORT sup_transport);
+
+/*******************************************************************************
+**
+** Function         BTA_GATTS_StopService
+**
+** Description      This function is called to stop a service.
+**
+** Parameters       service_id - service to be topped.
+**
+** Returns          None
+**
+*******************************************************************************/
+extern void BTA_GATTS_StopService(UINT16 service_id);
+
+/*******************************************************************************
+**
+** Function         BTA_GATTS_HandleValueIndication
+**
+** Description      This function is called to read a characteristics descriptor.
+**
+** Parameters       conn_id - connection identifier.
+**					attr_id - attribute ID to indicate.
+**                  data_len - indicate data length.
+**                  p_data: data to indicate.
+**                  need_confirm - if this indication expects a confirmation or not.
+**
+** Returns          None
+**
+*******************************************************************************/
+extern void BTA_GATTS_HandleValueIndication (UINT16 conn_id, UINT16 attr_id,
+                                             UINT16 data_len,
+                                             UINT8 *p_data,
+                                             BOOLEAN need_confirm);
+
+/*******************************************************************************
+**
+** Function         BTA_GATTS_SendRsp
+**
+** Description      This function is called to send a response to a request.
+**
+** Parameters       conn_id - connection identifier.
+**                  trans_id - transaction ID.
+**                  status - response status
+**                  p_msg - response data.
+**
+** Returns          None
+**
+*******************************************************************************/
+extern void BTA_GATTS_SendRsp (UINT16 conn_id, UINT32 trans_id,
+                               tBTA_GATT_STATUS status, tBTA_GATTS_RSP *p_msg);
+
+
+/*******************************************************************************
+**
+** Function         BTA_GATTS_Open
+**
+** Description      Open a direct open connection or add a background auto connection
+**                  bd address
+**
+** Parameters       server_if: server interface.
+**                  remote_bda: remote device BD address.
+**                  is_direct: direct connection or background auto connection
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_GATTS_Open(tBTA_GATTS_IF server_if, BD_ADDR remote_bda,
+                           BOOLEAN is_direct, tBTA_GATT_TRANSPORT transport);
+
+
+/*******************************************************************************
+**
+** Function         BTA_GATTS_CancelOpen
+**
+** Description      Cancel a direct open connection or remove a background auto connection
+**                  bd address
+**
+** Parameters       server_if: server interface.
+**                  remote_bda: remote device BD address.
+**                  is_direct: direct connection or background auto connection
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_GATTS_CancelOpen(tBTA_GATTS_IF server_if, BD_ADDR remote_bda, BOOLEAN is_direct);
+
+
+/*******************************************************************************
+**
+** Function         BTA_GATTS_Close
+**
+** Description      Close a connection  a remote device.
+**
+** Parameters       conn_id: connectino ID to be closed.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_GATTS_Close(UINT16 conn_id);
+
+/*******************************************************************************
+**
+** Function         BTA_GATTS_Listen
+**
+** Description      Start advertisement to listen for connection request for a
+**                  GATT server
+**
+** Parameters       server_if: server interface.
+**                  start: to start or stop listening for connection
+**                  remote_bda: remote device BD address, if listen to all device
+**                              use NULL.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_GATTS_Listen(tBTA_GATTS_IF server_if, BOOLEAN start,
+                             BD_ADDR_PTR target_bda);
+
+
+#ifdef __cplusplus
+
+}
+#endif
+
+
+#endif /* BTA_GATT_API_H */
diff --git a/rtkbt/code/bt/bta/include/bta_gatts_co.h b/rtkbt/code/bt/bta/include/bta_gatts_co.h
new file mode 100755
index 0000000..b3ee99b
--- /dev/null
+++ b/rtkbt/code/bt/bta/include/bta_gatts_co.h
@@ -0,0 +1,81 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2010-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the interface file for BTA GATT server call-out functions.
+ *
+ ******************************************************************************/
+#ifndef BTA_GATTS_CO_H
+#define BTA_GATTS_CO_H
+
+#include "bta_gatt_api.h"
+
+/*******************************************************************************
+**
+** Function         bta_gatts_co_update_handle_range
+**
+** Description      This callout function is executed by GATTS when a GATT server
+**                  handle range ios to be added or removed.
+**
+** Parameter        is_add: true is to add a handle range; otherwise is to delete.
+**                  p_hndl_range: handle range.
+**
+** Returns          void.
+**
+*******************************************************************************/
+extern void bta_gatts_co_update_handle_range(BOOLEAN is_add, tBTA_GATTS_HNDL_RANGE *p_hndl_range);
+
+/*******************************************************************************
+**
+** Function         bta_gatts_co_srv_chg
+**
+** Description      This call-out is to read/write/remove service change related
+**                  informaiton. The request consists of the cmd and p_req and the
+**                  response is returned in p_rsp
+**
+** Parameter        cmd - request command
+**                  p_req - request paramters
+**                  p_rsp - response data for the request
+**
+** Returns          TRUE - if the request is processed successfully and
+**                         the response is returned in p_rsp.
+**                  FASLE - if the request can not be processed
+**
+*******************************************************************************/
+extern BOOLEAN bta_gatts_co_srv_chg(tBTA_GATTS_SRV_CHG_CMD cmd,
+                                    tBTA_GATTS_SRV_CHG_REQ *p_req,
+                                    tBTA_GATTS_SRV_CHG_RSP *p_rsp);
+
+/*******************************************************************************
+**
+** Function         bta_gatts_co_load_handle_range
+**
+** Description      This callout function is executed by GATTS when a GATT server
+**                  handle range is requested to be loaded from NV.
+**
+** Parameter
+**
+** Returns          void.
+**
+*******************************************************************************/
+extern  BOOLEAN bta_gatts_co_load_handle_range(UINT8 index,
+                                               tBTA_GATTS_HNDL_RANGE *p_handle);
+
+
+#endif /* BTA_GATTS_CO_H */
diff --git a/rtkbt/code/bt/bta/include/bta_hf_client_api.h b/rtkbt/code/bt/bta/include/bta_hf_client_api.h
new file mode 100755
index 0000000..82235fa
--- /dev/null
+++ b/rtkbt/code/bt/bta/include/bta_hf_client_api.h
@@ -0,0 +1,382 @@
+/******************************************************************************
+ *
+ *  Copyright (c) 2014 The Android Open Source Project
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the public interface file for the handsfree (HF role) subsystem
+ *
+ ******************************************************************************/
+#ifndef BTA_HF_CLIENT_API_H
+#define BTA_HF_CLIENT_API_H
+
+#include "bta_api.h"
+
+/*****************************************************************************
+**  Constants and data types
+*****************************************************************************/
+
+/* HFP peer (AG) features*/
+#define BTA_HF_CLIENT_PEER_FEAT_3WAY   0x00000001  /* Three-way calling */
+#define BTA_HF_CLIENT_PEER_FEAT_ECNR   0x00000002  /* Echo cancellation and/or noise reduction */
+#define BTA_HF_CLIENT_PEER_FEAT_VREC   0x00000004  /* Voice recognition */
+#define BTA_HF_CLIENT_PEER_INBAND      0x00000008  /* In-band ring tone */
+#define BTA_HF_CLIENT_PEER_VTAG        0x00000010  /* Attach a phone number to a voice tag */
+#define BTA_HF_CLIENT_PEER_REJECT      0x00000020  /* Ability to reject incoming call */
+#define BTA_HF_CLIENT_PEER_ECS         0x00000040  /* Enhanced Call Status */
+#define BTA_HF_CLIENT_PEER_ECC         0x00000080  /* Enhanced Call Control */
+#define BTA_HF_CLIENT_PEER_EXTERR      0x00000100  /* Extended error codes */
+#define BTA_HF_CLIENT_PEER_CODEC       0x00000200  /* Codec Negotiation */
+
+typedef UINT16 tBTA_HF_CLIENT_PEER_FEAT;
+
+/* HFP HF features */
+#define BTA_HF_CLIENT_FEAT_ECNR        0x00000001  /* Echo cancellation and/or noise reduction */
+#define BTA_HF_CLIENT_FEAT_3WAY        0x00000002  /* Call waiting and three-way calling */
+#define BTA_HF_CLIENT_FEAT_CLI         0x00000004  /* Caller ID presentation capability */
+#define BTA_HF_CLIENT_FEAT_VREC        0x00000008  /* Voice recognition activation */
+#define BTA_HF_CLIENT_FEAT_VOL         0x00000010  /* Remote volume control */
+#define BTA_HF_CLIENT_FEAT_ECS         0x00000020  /* Enhanced Call Status */
+#define BTA_HF_CLIENT_FEAT_ECC         0x00000040  /* Enhanced Call Control */
+#define BTA_HF_CLIENT_FEAT_CODEC       0x00000080  /* Codec Negotiation */
+
+/* HFP HF extended call handling - masks not related to any spec */
+#define BTA_HF_CLIENT_CHLD_REL          0x00000001  /* 0  Release waiting call or held calls */
+#define BTA_HF_CLIENT_CHLD_REL_ACC      0x00000002  /* 1  Release active calls and accept other (waiting or held) cal */
+#define BTA_HF_CLIENT_CHLD_REL_X        0x00000004  /* 1x Release x call*/
+#define BTA_HF_CLIENT_CHLD_HOLD_ACC     0x00000008  /* 2  Active calls on hold and accept other call */
+#define BTA_HF_CLIENT_CHLD_PRIV_X       0x00000010  /* 2x Active multiparty call on hold except call x */
+#define BTA_HF_CLIENT_CHLD_MERGE        0x00000020  /* 3  Add held call to multiparty */
+#define BTA_HF_CLIENT_CHLD_MERGE_DETACH 0x00000040  /* 4  Add held call to multiparty */
+
+typedef UINT16 tBTA_HF_CLIENT_CHLD_FEAT;
+
+/* HFP AG errors ot OK sent to HF Unit */
+#define BTA_HF_CLIENT_AT_RESULT_OK            0
+#define BTA_HF_CLIENT_AT_RESULT_ERROR         1
+#define BTA_HF_CLIENT_AT_RESULT_NO_CARRIER    2
+#define BTA_HF_CLIENT_AT_RESULT_BUSY          3
+#define BTA_HF_CLIENT_AT_RESULT_NO_ANSWER     4
+#define BTA_HF_CLIENT_AT_RESULT_DELAY         5
+#define BTA_HF_CLIENT_AT_RESULT_BLACKLISTED   6
+#define BTA_HF_CLIENT_AT_RESULT_CME           7
+
+typedef UINT8 tBTA_HF_CLIENT_AT_RESULT_TYPE;
+
+/* HF Client callback events */
+#define BTA_HF_CLIENT_ENABLE_EVT            0  /* HF Client enabled */
+#define BTA_HF_CLIENT_REGISTER_EVT          1  /* HF Client registered */
+#define BTA_HF_CLIENT_OPEN_EVT              2  /* HF Client connection open */
+#define BTA_HF_CLIENT_CLOSE_EVT             3  /* HF Client connection closed */
+#define BTA_HF_CLIENT_CONN_EVT              4  /* Service level connection opened */
+#define BTA_HF_CLIENT_AUDIO_OPEN_EVT        5  /* Audio connection open */
+#define BTA_HF_CLIENT_AUDIO_MSBC_OPEN_EVT   6  /* Audio connection with mSBC codec open */
+#define BTA_HF_CLIENT_AUDIO_CLOSE_EVT       7  /* Audio connection closed */
+#define BTA_HF_CLIENT_SPK_EVT               8  /* Speaker volume changed */
+#define BTA_HF_CLIENT_MIC_EVT               9  /* Microphone volume changed */
+#define BTA_HF_CLIENT_IND_EVT               10 /* Indicator */
+#define BTA_HF_CLIENT_VOICE_REC_EVT         11 /* AG changed voice recognition setting */
+#define BTA_HF_CLIENT_OPERATOR_NAME_EVT     12 /* Operator name acquired */
+#define BTA_HF_CLIENT_CLIP_EVT              13 /* Calling line identification event */
+#define BTA_HF_CLIENT_CCWA_EVT              14 /* Call waiting notification */
+#define BTA_HF_CLIENT_AT_RESULT_EVT         15 /* Call waiting notification */
+#define BTA_HF_CLIENT_CLCC_EVT              16 /* current call event */
+#define BTA_HF_CLIENT_CNUM_EVT              17 /* subscriber information event */
+#define BTA_HF_CLIENT_BTRH_EVT              18 /* bluetooth response and hold event */
+#define BTA_HF_CLIENT_BSIR_EVT              19 /* in-band ring tone setting changed event */
+#define BTA_HF_CLIENT_BINP_EVT              20 /* binp number event */
+#define BTA_HF_CLIENT_RING_INDICATION       21 /* HF Client ring indication */
+#define BTA_HF_CLIENT_DISABLE_EVT           30 /* HF Client disabled */
+
+typedef UINT8 tBTA_HF_CLIENT_EVT;
+
+/* HF Client open status */
+#define BTA_HF_CLIENT_SUCCESS          0 /* Connection successfully opened */
+#define BTA_HF_CLIENT_FAIL_SDP         1 /* Open failed due to SDP */
+#define BTA_HF_CLIENT_FAIL_RFCOMM      2 /* Open failed due to RFCOMM */
+#define BTA_HF_CLIENT_FAIL_RESOURCES   3 /* out of resources failure  */
+
+typedef UINT8 tBTA_HF_CLIENT_STATUS;
+
+/* indicator type */
+#define BTA_HF_CLIENT_IND_BATTCH    0  /* Battery charge indicator */
+#define BTA_HF_CLIENT_IND_SIGNAL    1  /* Signal Strength indicator */
+#define BTA_HF_CLIENT_IND_SERVICE   2  /* Service availability indicator */
+#define BTA_HF_CLIENT_IND_CALL      3  /* Standard call status indicator*/
+#define BTA_HF_CLIENT_IND_ROAM      4  /* Roaming status indicator */
+#define BTA_HF_CLIENT_IND_CALLSETUP 5  /* Call setup status indicator */
+#define BTA_HF_CLIENT_IND_CALLHELD  6  /* Call hold status indicator */
+
+typedef UINT8 tBTA_HF_CLIENT_IND_TYPE;
+
+/* AT commands */
+#define BTA_HF_CLIENT_AT_CMD_VTS    0
+#define BTA_HF_CLIENT_AT_CMD_BTRH   1
+#define BTA_HF_CLIENT_AT_CMD_CHUP   2
+#define BTA_HF_CLIENT_AT_CMD_CHLD   3
+#define BTA_HF_CLIENT_AT_CMD_BCC    4
+#define BTA_HF_CLIENT_AT_CMD_CNUM   5
+#define BTA_HF_CLIENT_AT_CMD_ATA    6
+#define BTA_HF_CLIENT_AT_CMD_COPS   7
+#define BTA_HF_CLIENT_AT_CMD_ATD    8
+#define BTA_HF_CLIENT_AT_CMD_VGM    9
+#define BTA_HF_CLIENT_AT_CMD_VGS    10
+#define BTA_HF_CLIENT_AT_CMD_BVRA   11
+#define BTA_HF_CLIENT_AT_CMD_CLCC   12
+#define BTA_HF_CLIENT_AT_CMD_BINP   13
+#define BTA_HF_CLIENT_AT_CMD_BLDN   14
+#define BTA_HF_CLIENT_AT_CMD_NREC   15
+
+typedef UINT8 tBTA_HF_CLIENT_AT_CMD_TYPE;
+
+/* data associated with most non-AT events */
+/* placeholder, if not needed should be removed*/
+typedef struct
+{
+} tBTA_HF_CLIENT_HDR;
+
+/* data associated with BTA_HF_CLIENT_REGISTER_EVT */
+typedef struct
+{
+    tBTA_HF_CLIENT_HDR      hdr;
+    UINT16                  handle;
+    tBTA_HF_CLIENT_STATUS   status;
+} tBTA_HF_CLIENT_REGISTER;
+
+/* data associated with BTA_HF_CLIENT_OPEN_EVT */
+typedef struct
+{
+    tBTA_HF_CLIENT_HDR      hdr;
+    BD_ADDR                 bd_addr;
+    tBTA_HF_CLIENT_STATUS   status;
+} tBTA_HF_CLIENT_OPEN;
+
+/* data associated with BTA_HF_CLIENT_CONN_EVT */
+typedef struct
+{
+    tBTA_HF_CLIENT_HDR         hdr;
+    tBTA_HF_CLIENT_PEER_FEAT   peer_feat;
+    tBTA_HF_CLIENT_CHLD_FEAT   chld_feat;
+} tBTA_HF_CLIENT_CONN;
+
+/* data associated with BTA_HF_CLIENT_IND_EVT event */
+typedef struct
+{
+    tBTA_HF_CLIENT_HDR         hdr;
+    tBTA_HF_CLIENT_IND_TYPE    type;
+    UINT16                     value;
+} tBTA_HF_CLIENT_IND;
+
+/* data associated with BTA_HF_CLIENT_OPERATOR_NAME_EVT */
+#define BTA_HF_CLIENT_OPERATOR_NAME_LEN 16
+typedef struct
+{
+    char                       name[BTA_HF_CLIENT_OPERATOR_NAME_LEN + 1];
+} tBTA_HF_CLIENT_OPERATOR_NAME;
+
+/* data associated with BTA_HF_CLIENT_CLIP_EVT  and BTA_HF_CLIENT_CCWA_EVT*/
+#define BTA_HF_CLIENT_NUMBER_LEN 32
+typedef struct
+{
+    char                       number[BTA_HF_CLIENT_NUMBER_LEN + 1];
+} tBTA_HF_CLIENT_NUMBER;
+
+/* data associated with BTA_HF_CLIENT_AT_RESULT_EVT event */
+typedef struct
+{
+    tBTA_HF_CLIENT_AT_RESULT_TYPE    type;
+    UINT16                           cme;
+} tBTA_HF_CLIENT_AT_RESULT;
+
+/* data associated with BTA_HF_CLIENT_CLCC_EVT event */
+typedef struct
+{
+    UINT32                     idx;
+    BOOLEAN                    inc;
+    UINT8                      status;
+    BOOLEAN                    mpty;
+    BOOLEAN                    number_present;
+    char                       number[BTA_HF_CLIENT_NUMBER_LEN + 1];
+} tBTA_HF_CLIENT_CLCC;
+
+/* data associated with BTA_HF_CLIENT_CNUM_EVT event */
+typedef struct
+{
+    UINT16                     service;
+    char                       number[BTA_HF_CLIENT_NUMBER_LEN + 1];
+} tBTA_HF_CLIENT_CNUM;
+
+/* data associated with other events */
+typedef struct
+{
+    UINT16                     value;
+} tBTA_HF_CLIENT_VAL;
+
+/* union of data associated with AG callback */
+typedef union
+{
+    tBTA_HF_CLIENT_HDR              hdr;
+    tBTA_HF_CLIENT_REGISTER         reg;
+    tBTA_HF_CLIENT_OPEN             open;
+    tBTA_HF_CLIENT_CONN             conn;
+    tBTA_HF_CLIENT_IND              ind;
+    tBTA_HF_CLIENT_VAL              val;
+    tBTA_HF_CLIENT_OPERATOR_NAME    operator;
+    tBTA_HF_CLIENT_NUMBER           number;
+    tBTA_HF_CLIENT_AT_RESULT        result;
+    tBTA_HF_CLIENT_CLCC             clcc;
+    tBTA_HF_CLIENT_CNUM             cnum;
+} tBTA_HF_CLIENT;
+
+typedef UINT32 tBTA_HF_CLIENT_FEAT;
+
+/* HF Client callback */
+typedef void (tBTA_HF_CLIENT_CBACK)(tBTA_HF_CLIENT_EVT event, tBTA_HF_CLIENT *p_data);
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+/*****************************************************************************
+**  External Function Declarations
+*****************************************************************************/
+
+/*******************************************************************************
+**
+** Function         BTA_HfClientEnable
+**
+** Description      Enable the HF CLient service. When the enable
+**                  operation is complete the callback function will be
+**                  called with a BTA_HF_CLIENT_ENABLE_EVT. This function must
+**                  be called before other function in the HF CLient API are
+**                  called.
+**
+** Returns          BTA_SUCCESS if OK, BTA_FAILURE otherwise.
+**
+*******************************************************************************/
+tBTA_STATUS BTA_HfClientEnable(tBTA_HF_CLIENT_CBACK *p_cback);
+
+/*******************************************************************************
+**
+** Function         BTA_HfClientDisable
+**
+** Description      Disable the HF Client service
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_HfClientDisable(void);
+
+/*******************************************************************************
+**
+** Function         BTA_HfClientRegister
+**
+** Description      Register an HF Client service.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_HfClientRegister(tBTA_SEC sec_mask, tBTA_HF_CLIENT_FEAT features,
+                          char *p_service_name);
+
+/*******************************************************************************
+**
+** Function         BTA_HfClientDeregister
+**
+** Description      Deregister an HF Client service.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_HfClientDeregister(UINT16 handle);
+
+/*******************************************************************************
+**
+** Function         BTA_HfClientOpen
+**
+** Description      Opens a connection to an audio gateway.
+**                  When connection is open callback function is called
+**                  with a BTA_HF_CLIENT_OPEN_EVT. Only the data connection is
+**                  opened. The audio connection is not opened.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_HfClientOpen(UINT16 handle, BD_ADDR bd_addr, tBTA_SEC sec_mask);
+
+/*******************************************************************************
+**
+** Function         BTA_HfClientClose
+**
+** Description      Close the current connection to an audio gateway.
+**                  Any current audio connection will also be closed
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_HfClientClose(UINT16 handle);
+
+/*******************************************************************************
+**
+** Function         BTA_HfCllientAudioOpen
+**
+** Description      Opens an audio connection to the currently connected
+**                 audio gateway
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_HfClientAudioOpen(UINT16 handle);
+
+/*******************************************************************************
+**
+** Function         BTA_HfClientAudioClose
+**
+** Description      Close the currently active audio connection to an audio
+**                  gateway. The data connection remains open
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_HfClientAudioClose(UINT16 handle);
+
+/*******************************************************************************
+**
+** Function         BTA_HfClientSendAT
+**
+** Description      send AT command
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_HfClientSendAT(UINT16 handle, tBTA_HF_CLIENT_AT_CMD_TYPE at, UINT32 val1, UINT32 val2, const char *str);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* BTA_HF_CLIENT_API_H */
diff --git a/rtkbt/code/bt/bta/include/bta_hh_api.h b/rtkbt/code/bt/bta/include/bta_hh_api.h
new file mode 100755
index 0000000..d43e492
--- /dev/null
+++ b/rtkbt/code/bt/bta/include/bta_hh_api.h
@@ -0,0 +1,558 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2002-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+#ifndef BTA_HH_API_H
+#define BTA_HH_API_H
+
+#include "bta_api.h"
+#include "hidh_api.h"
+
+#if (defined BTA_HH_LE_INCLUDED && BTA_HH_LE_INCLUDED == TRUE)
+#include "gatt_api.h"
+#endif
+
+/*****************************************************************************
+**  Constants and Type Definitions
+*****************************************************************************/
+#ifndef BTA_HH_DEBUG
+#define BTA_HH_DEBUG    TRUE
+#endif
+
+#ifndef BTA_HH_SSR_MAX_LATENCY_DEF
+#define BTA_HH_SSR_MAX_LATENCY_DEF  800 /* 500 ms*/
+#endif
+
+#ifndef BTA_HH_SSR_MIN_TOUT_DEF
+#define BTA_HH_SSR_MIN_TOUT_DEF     2
+#endif
+
+/* BTA HID Host callback events */
+#define BTA_HH_ENABLE_EVT       0       /* HH enabled */
+#define BTA_HH_DISABLE_EVT      1       /* HH disabled */
+#define BTA_HH_OPEN_EVT         2       /* connection opened */
+#define BTA_HH_CLOSE_EVT        3       /* connection closed */
+#define BTA_HH_GET_RPT_EVT      4       /* BTA_HhGetReport callback */
+#define BTA_HH_SET_RPT_EVT      5       /* BTA_HhSetReport callback */
+#define BTA_HH_GET_PROTO_EVT    6       /* BTA_GetProtoMode callback */
+#define BTA_HH_SET_PROTO_EVT    7       /* BTA_HhSetProtoMode callback */
+#define BTA_HH_GET_IDLE_EVT     8       /* BTA_HhGetIdle comes callback */
+#define BTA_HH_SET_IDLE_EVT     9       /* BTA_HhSetIdle finish callback */
+#define BTA_HH_GET_DSCP_EVT     10      /* Get report descriptor */
+#define BTA_HH_ADD_DEV_EVT      11      /* Add Device callback */
+#define BTA_HH_RMV_DEV_EVT      12      /* remove device finished */
+#define BTA_HH_VC_UNPLUG_EVT    13      /* virtually unplugged */
+#define BTA_HH_DATA_EVT         15
+#define BTA_HH_API_ERR_EVT      16      /* API error is caught */
+#define BTA_HH_UPDATE_SCPP_EVT  17       /* update scan paramter complete */
+
+typedef UINT16 tBTA_HH_EVT;
+
+/* application ID(none-zero) for each type of device */
+#define BTA_HH_APP_ID_MI            1
+#define BTA_HH_APP_ID_KB            2
+#define BTA_HH_APP_ID_RMC           3
+#define BTA_HH_APP_ID_3DSG          4
+#define BTA_HH_APP_ID_JOY           5
+#define BTA_HH_APP_ID_GPAD          6
+#define BTA_HH_APP_ID_LE            0xff
+
+/* defined the minimum offset */
+#define BTA_HH_MIN_OFFSET       L2CAP_MIN_OFFSET+1
+
+/* HID_HOST_MAX_DEVICES can not exceed 15 for th design of BTA HH */
+#define BTA_HH_IDX_INVALID      0xff
+#define BTA_HH_MAX_KNOWN        HID_HOST_MAX_DEVICES
+
+#if (defined BTA_HH_LE_INCLUDED && BTA_HH_LE_INCLUDED == TRUE)
+/* GATT_MAX_PHY_CHANNEL can not exceed 14 for the design of BTA HH */
+#define BTA_HH_LE_MAX_KNOWN     GATT_MAX_PHY_CHANNEL
+#define BTA_HH_MAX_DEVICE        (HID_HOST_MAX_DEVICES + GATT_MAX_PHY_CHANNEL)
+#else
+#define BTA_HH_MAX_DEVICE       HID_HOST_MAX_DEVICES
+#endif
+/* invalid device handle */
+#define BTA_HH_INVALID_HANDLE   0xff
+
+/* type of protocol mode */
+#define BTA_HH_PROTO_RPT_MODE                   (0x00)
+#define BTA_HH_PROTO_BOOT_MODE                  (0x01)
+#define BTA_HH_PROTO_UNKNOWN                    (0xff)
+typedef UINT8   tBTA_HH_PROTO_MODE;
+
+enum
+{
+    BTA_HH_KEYBD_RPT_ID  =               1,
+    BTA_HH_MOUSE_RPT_ID
+};
+typedef UINT8 tBTA_HH_BOOT_RPT_ID;
+
+/* type of devices, bit mask */
+#define BTA_HH_DEVT_UNKNOWN      0x00
+#define BTA_HH_DEVT_JOS          0x01           /* joy stick */
+#define BTA_HH_DEVT_GPD          0x02           /* game pad */
+#define BTA_HH_DEVT_RMC          0x03           /* remote control */
+#define BTA_HH_DEVT_SED          0x04           /* sensing device */
+#define BTA_HH_DEVT_DGT          0x05           /* Digitizer tablet */
+#define BTA_HH_DEVT_CDR          0x06           /* card reader */
+#define BTA_HH_DEVT_KBD          0x10           /* keyboard */
+#define BTA_HH_DEVT_MIC          0x20           /* pointing device */
+#define BTA_HH_DEVT_COM          0x30           /* Combo keyboard/pointing */
+#define BTA_HH_DEVT_OTHER        0x80
+typedef UINT8  tBTA_HH_DEVT;
+
+enum
+{
+    BTA_HH_OK,
+    BTA_HH_HS_HID_NOT_READY,    /* handshake error : device not ready */
+    BTA_HH_HS_INVALID_RPT_ID,   /* handshake error : invalid report ID */
+    BTA_HH_HS_TRANS_NOT_SPT,    /* handshake error : transaction not spt */
+    BTA_HH_HS_INVALID_PARAM,    /* handshake error : invalid paremter */
+    BTA_HH_HS_ERROR,            /* handshake error : unspecified HS error */
+    BTA_HH_ERR,                 /* general BTA HH error */
+    BTA_HH_ERR_SDP,             /* SDP error */
+    BTA_HH_ERR_PROTO,           /* SET_Protocol error,
+                                    only used in BTA_HH_OPEN_EVT callback */
+
+    BTA_HH_ERR_DB_FULL,         /* device database full error, used in
+                                   BTA_HH_OPEN_EVT/BTA_HH_ADD_DEV_EVT */
+    BTA_HH_ERR_TOD_UNSPT,       /* type of device not supported */
+    BTA_HH_ERR_NO_RES,          /* out of system resources */
+    BTA_HH_ERR_AUTH_FAILED,     /* authentication fail */
+    BTA_HH_ERR_HDL,
+    BTA_HH_ERR_SEC
+};
+typedef UINT8 tBTA_HH_STATUS;
+
+
+#define BTA_HH_VIRTUAL_CABLE           HID_VIRTUAL_CABLE
+#define BTA_HH_NORMALLY_CONNECTABLE    HID_NORMALLY_CONNECTABLE
+#define BTA_HH_RECONN_INIT             HID_RECONN_INIT
+#define BTA_HH_SDP_DISABLE             HID_SDP_DISABLE
+#define BTA_HH_BATTERY_POWER           HID_BATTERY_POWER
+#define BTA_HH_REMOTE_WAKE             HID_REMOTE_WAKE
+#define BTA_HH_SUP_TOUT_AVLBL          HID_SUP_TOUT_AVLBL
+#define BTA_HH_SEC_REQUIRED             HID_SEC_REQUIRED
+typedef UINT16 tBTA_HH_ATTR_MASK;
+
+/* supported type of device and corresponding application ID */
+typedef struct
+{
+    tBTA_HH_DEVT        tod;        /* type of device               */
+    UINT8               app_id;     /* corresponding application ID */
+}tBTA_HH_SPT_TOD;
+
+/* configuration struct */
+typedef struct
+{
+    UINT8                max_devt_spt; /* max number of types of devices spt */
+    tBTA_HH_SPT_TOD     *p_devt_list;  /* supported types of device list     */
+    UINT16               sdp_db_size;
+}tBTA_HH_CFG;
+
+enum
+{
+    BTA_HH_RPTT_RESRV,      /* reserved         */
+    BTA_HH_RPTT_INPUT,      /* input report     */
+    BTA_HH_RPTT_OUTPUT,     /* output report    */
+    BTA_HH_RPTT_FEATURE     /* feature report   */
+};
+typedef UINT8 tBTA_HH_RPT_TYPE;
+
+/* HID_CONTROL operation code used in BTA_HhSendCtrl()
+*/
+enum
+{
+    BTA_HH_CTRL_NOP         = 0 + HID_PAR_CONTROL_NOP ,/* mapping from BTE */
+    BTA_HH_CTRL_HARD_RESET,                            /* hard reset       */
+    BTA_HH_CTRL_SOFT_RESET,                            /* soft reset       */
+    BTA_HH_CTRL_SUSPEND,                               /* enter suspend    */
+    BTA_HH_CTRL_EXIT_SUSPEND,                          /* exit suspend     */
+    BTA_HH_CTRL_VIRTUAL_CABLE_UNPLUG                   /* virtual unplug   */
+};
+typedef UINT8 tBTA_HH_TRANS_CTRL_TYPE;
+
+typedef tHID_DEV_DSCP_INFO tBTA_HH_DEV_DESCR;
+
+#define BTA_HH_SSR_PARAM_INVALID       HID_SSR_PARAM_INVALID
+
+/* id DI is not existing in remote device, vendor_id in tBTA_HH_DEV_DSCP_INFO will be set to 0xffff */
+#define BTA_HH_VENDOR_ID_INVALID       0xffff
+
+
+/* report descriptor information */
+typedef struct
+{
+    UINT16              vendor_id;      /* vendor ID */
+    UINT16              product_id;     /* product ID */
+    UINT16              version;        /* version */
+    UINT16              ssr_max_latency;    /* SSR max latency, BTA_HH_SSR_PARAM_INVALID if unknown */
+    UINT16              ssr_min_tout;       /* SSR min timeout, BTA_HH_SSR_PARAM_INVALID if unknown */
+    UINT8               ctry_code;      /*Country Code.*/
+#if (defined BTA_HH_LE_INCLUDED && BTA_HH_LE_INCLUDED == TRUE)
+#define BTA_HH_LE_REMOTE_WAKE       0x01
+#define BTA_HH_LE_NORMAL_CONN       0x02
+
+    UINT8               flag;
+#endif
+    tBTA_HH_DEV_DESCR   descriptor;
+}tBTA_HH_DEV_DSCP_INFO;
+
+/* callback event data for BTA_HH_OPEN_EVT */
+typedef struct
+{
+    BD_ADDR         bda;                /* HID device bd address    */
+    tBTA_HH_STATUS  status;             /* operation status         */
+    UINT8           handle;             /* device handle            */
+#if (defined BTA_HH_LE_INCLUDED && BTA_HH_LE_INCLUDED == TRUE)
+    BOOLEAN         le_hid;             /* is LE devices? */
+    BOOLEAN         scps_supported;     /* scan parameter service supported */
+#endif
+
+} tBTA_HH_CONN;
+
+typedef tBTA_HH_CONN tBTA_HH_DEV_INFO;
+
+/* callback event data */
+typedef struct
+{
+    tBTA_HH_STATUS              status;     /* operation status         */
+    UINT8                       handle;     /* device handle            */
+} tBTA_HH_CBDATA;
+
+enum
+{
+    BTA_HH_MOD_CTRL_KEY,
+    BTA_HH_MOD_SHFT_KEY,
+    BTA_HH_MOD_ALT_KEY,
+    BTA_HH_MOD_GUI_KEY,
+    BTA_HH_MOD_MAX_KEY
+};
+
+/* parsed boot mode keyboard report */
+typedef struct
+{
+    UINT8               this_char[6];       /* virtual key code     */
+    BOOLEAN             mod_key[BTA_HH_MOD_MAX_KEY];
+                                            /* ctrl, shift, Alt, GUI */
+                                            /* modifier key: is Shift key pressed */
+                                            /* modifier key: is Ctrl key pressed  */
+                                            /* modifier key: is Alt key pressed   */
+                                            /* modifier key: GUI up/down */
+    BOOLEAN             caps_lock;          /* is caps locked       */
+    BOOLEAN             num_lock;           /* is Num key pressed   */
+} tBTA_HH_KEYBD_RPT;
+
+/* parsed boot mode mouse report */
+typedef struct
+{
+    UINT8               mouse_button;       /* mouse button is clicked   */
+    INT8                delta_x;            /* displacement x            */
+    INT8                delta_y;            /* displacement y            */
+}tBTA_HH_MICE_RPT;
+
+/* parsed Boot report */
+typedef struct
+{
+    tBTA_HH_BOOT_RPT_ID dev_type;           /* type of device report */
+    union
+    {
+        tBTA_HH_KEYBD_RPT   keybd_rpt;      /* keyboard report      */
+        tBTA_HH_MICE_RPT    mice_rpt;       /* mouse report         */
+    }                   data_rpt;
+} tBTA_HH_BOOT_RPT;
+
+/* handshake data */
+typedef struct
+{
+    tBTA_HH_STATUS  status;                 /* handshake status */
+    UINT8           handle;                 /* device handle    */
+    union
+    {
+        tBTA_HH_PROTO_MODE      proto_mode; /* GET_PROTO_EVT :protocol mode */
+        BT_HDR                  *p_rpt_data;   /* GET_RPT_EVT   : report data  */
+        UINT8                   idle_rate;  /* GET_IDLE_EVT  : idle rate    */
+    }               rsp_data;
+
+}tBTA_HH_HSDATA;
+
+/* union of data associated with HD callback */
+typedef union
+{
+    tBTA_HH_DEV_INFO        dev_info;           /* BTA_HH_ADD_DEV_EVT, BTA_HH_RMV_DEV_EVT   */
+    tBTA_HH_CONN            conn;               /* BTA_HH_OPEN_EVT      */
+    tBTA_HH_CBDATA          dev_status;         /* BTA_HH_CLOSE_EVT,
+                                                   BTA_HH_SET_PROTO_EVT
+                                                   BTA_HH_SET_RPT_EVT
+                                                   BTA_HH_SET_IDLE_EVT
+                                                   BTA_HH_UPDATE_SCPP_EVT */
+
+    tBTA_HH_STATUS          status;             /* BTA_HH_ENABLE_EVT */
+    tBTA_HH_DEV_DSCP_INFO   dscp_info;          /* BTA_HH_GET_DSCP_EVT */
+    tBTA_HH_HSDATA          hs_data;            /* GET_ transaction callback
+                                                   BTA_HH_GET_RPT_EVT
+                                                   BTA_HH_GET_PROTO_EVT
+                                                   BTA_HH_GET_IDLE_EVT */
+} tBTA_HH;
+
+/* BTA HH callback function */
+typedef void (tBTA_HH_CBACK) (tBTA_HH_EVT event, tBTA_HH *p_data);
+
+
+/*****************************************************************************
+**  External Function Declarations
+*****************************************************************************/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+/*******************************************************************************
+**
+** Function         BTA_HhRegister
+**
+** Description      This function enable HID host and registers HID-Host with
+**                  lower layers.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_HhEnable(tBTA_SEC sec_mask, tBTA_HH_CBACK *p_cback);
+
+/*******************************************************************************
+**
+** Function         BTA_HhDeregister
+**
+** Description      This function is called when the host is about power down.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_HhDisable(void);
+
+/*******************************************************************************
+**
+** Function         BTA_HhOpen
+**
+** Description      This function is called to start an inquiry and read SDP
+**                  record of responding devices; connect to a device if only
+**                  one active HID device is found.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_HhOpen (BD_ADDR dev_bda, tBTA_HH_PROTO_MODE mode,
+                        tBTA_SEC sec_mask);
+
+/*******************************************************************************
+**
+** Function         BTA_HhClose
+**
+** Description      This function disconnects the device.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_HhClose(UINT8 dev_handle);
+
+/*******************************************************************************
+**
+** Function         BTA_HhSetProtoMode
+**
+** Description      This function set the protocol mode at specified HID handle
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_HhSetProtoMode(UINT8 handle, tBTA_HH_PROTO_MODE t_type);
+
+/*******************************************************************************
+**
+** Function         BTA_HhGetProtoMode
+**
+** Description      This function get the protocol mode of a specified HID device.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_HhGetProtoMode(UINT8 dev_handle);
+/*******************************************************************************
+**
+** Function         BTA_HhSetReport
+**
+** Description      send SET_REPORT to device.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_HhSetReport(UINT8 dev_handle, tBTA_HH_RPT_TYPE r_type,
+                            BT_HDR *p_data);
+
+/*******************************************************************************
+**
+** Function         BTA_HhGetReport
+**
+** Description      Send a GET_REPORT to HID device.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_HhGetReport(UINT8 dev_handle, tBTA_HH_RPT_TYPE r_type,
+                            UINT8 rpt_id, UINT16 buf_size);
+/*******************************************************************************
+**
+** Function         BTA_HhSetIdle
+**
+** Description      send SET_IDLE to device.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_HhSetIdle(UINT8 dev_handle, UINT16 idle_rate);
+
+/*******************************************************************************
+**
+** Function         BTA_HhGetIdle
+**
+** Description      Send a GET_IDLE to HID device.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_HhGetIdle(UINT8 dev_handle);
+
+/*******************************************************************************
+**
+** Function         BTA_HhSendCtrl
+**
+** Description      Send HID_CONTROL request to a HID device.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_HhSendCtrl(UINT8 dev_handle,
+                           tBTA_HH_TRANS_CTRL_TYPE c_type);
+
+/*******************************************************************************
+**
+** Function         BTA_HhSetIdle
+**
+** Description      send SET_IDLE to device.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_HhSetIdle(UINT8 dev_handle, UINT16 idle_rate);
+
+
+/*******************************************************************************
+**
+** Function         BTA_HhGetIdle
+**
+** Description      Send a GET_IDLE from HID device.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_HhGetIdle(UINT8 dev_handle);
+
+/*******************************************************************************
+**
+** Function         BTA_HhSendData
+**
+** Description      Send DATA transaction to a HID device.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_HhSendData(UINT8 dev_handle, BD_ADDR dev_bda, BT_HDR  *p_buf);
+
+/*******************************************************************************
+**
+** Function         BTA_HhGetDscpInfo
+**
+** Description      Get report descriptor of the device
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_HhGetDscpInfo(UINT8 dev_handle);
+
+/*******************************************************************************
+** Function         BTA_HhAddDev
+**
+** Description      Add a virtually cabled device into HID-Host device list
+**                  to manage and assign a device handle for future API call,
+**                  host applciation call this API at start-up to initialize its
+**                  virtually cabled devices.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_HhAddDev(BD_ADDR bda, tBTA_HH_ATTR_MASK attr_mask,
+                         UINT8 sub_class, UINT8 app_id,
+                         tBTA_HH_DEV_DSCP_INFO dscp_info);
+/*******************************************************************************
+**
+** Function         BTA_HhRemoveDev
+**
+** Description      Remove a device from the HID host devices list.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_HhRemoveDev(UINT8 dev_handle );
+
+/*******************************************************************************
+**
+**              Parsing Utility Functions
+**
+*******************************************************************************/
+/*******************************************************************************
+**
+** Function         BTA_HhParseBootRpt
+**
+** Description      This utility function parse a boot mode report.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_HhParseBootRpt(tBTA_HH_BOOT_RPT *p_data, UINT8 *p_report,
+                               UINT16 report_len);
+
+#if BTA_HH_LE_INCLUDED == TRUE
+/*******************************************************************************
+**
+** Function         BTA_HhUpdateLeScanParam
+**
+** Description      Update the scan paramteters if connected to a LE hid device as
+**                  report host.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_HhUpdateLeScanParam(UINT8 dev_handle, UINT16 scan_int, UINT16 scan_win);
+#endif
+/* test commands */
+extern void bta_hh_le_hid_read_rpt_clt_cfg(BD_ADDR bd_addr, UINT8 rpt_id);
+
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif  /* BTA_HH_API_H */
diff --git a/rtkbt/code/bt/bta/include/bta_hh_co.h b/rtkbt/code/bt/bta/include/bta_hh_co.h
new file mode 100755
index 0000000..940b3cc
--- /dev/null
+++ b/rtkbt/code/bt/bta/include/bta_hh_co.h
@@ -0,0 +1,133 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2005-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the interface file for hid host call-out functions.
+ *
+ ******************************************************************************/
+#ifndef BTA_HH_CO_H
+#define BTA_HH_CO_H
+
+#include "bta_hh_api.h"
+
+typedef struct
+{
+    UINT16              rpt_uuid;
+    UINT8               rpt_id;
+    tBTA_HH_RPT_TYPE    rpt_type;
+    UINT8               srvc_inst_id;
+    UINT8               char_inst_id;
+}tBTA_HH_RPT_CACHE_ENTRY;
+
+/*******************************************************************************
+**
+** Function         bta_hh_co_data
+**
+** Description      This callout function is executed by HH when data is received
+**                  in interupt channel.
+**
+**
+** Returns          void.
+**
+*******************************************************************************/
+extern void bta_hh_co_data(UINT8 dev_handle, UINT8 *p_rpt, UINT16 len,
+                           tBTA_HH_PROTO_MODE  mode, UINT8 sub_class,
+                           UINT8 ctry_code, BD_ADDR peer_addr, UINT8 app_id);
+
+/*******************************************************************************
+**
+** Function         bta_hh_co_open
+**
+** Description      This callout function is executed by HH when connection is
+**                  opened, and application may do some device specific
+**                  initialization.
+**
+** Returns          void.
+**
+*******************************************************************************/
+extern void bta_hh_co_open(UINT8 dev_handle, UINT8 sub_class,
+                           UINT16 attr_mask, UINT8 app_id);
+
+/*******************************************************************************
+**
+** Function         bta_hh_co_close
+**
+** Description      This callout function is executed by HH when connection is
+**                  closed, and device specific finalizatio nmay be needed.
+**
+** Returns          void.
+**
+*******************************************************************************/
+extern void bta_hh_co_close(UINT8 dev_handle, UINT8 app_id);
+
+#if (BLE_INCLUDED == TRUE && BTA_HH_LE_INCLUDED == TRUE)
+/*******************************************************************************
+**
+** Function         bta_hh_le_co_rpt_info
+**
+** Description      This callout function is to convey the report information on
+**                  a HOGP device to the application. Application can save this
+**                  information in NV if device is bonded and load it back when
+**                  stack reboot.
+**
+** Parameters       remote_bda  - remote device address
+**                  p_entry     - report entry pointer
+**                  app_id      - application id
+**
+** Returns          void.
+**
+*******************************************************************************/
+extern void bta_hh_le_co_rpt_info(BD_ADDR remote_bda,
+                                          tBTA_HH_RPT_CACHE_ENTRY *p_entry,
+                                          UINT8 app_id);
+
+/*******************************************************************************
+**
+** Function         bta_hh_le_co_cache_load
+**
+** Description      This callout function is to request the application to load the
+**                  cached HOGP report if there is any. When cache reading is completed,
+**                  bta_hh_le_ci_cache_load() is called by the application.
+**
+** Parameters       remote_bda  - remote device address
+**                  p_num_rpt: number of cached report
+**                  app_id      - application id
+**
+** Returns          the acched report array
+**
+*******************************************************************************/
+extern tBTA_HH_RPT_CACHE_ENTRY *bta_hh_le_co_cache_load (BD_ADDR remote_bda,
+                                                                 UINT8 *p_num_rpt,
+                                                                 UINT8 app_id);
+
+/*******************************************************************************
+**
+** Function         bta_hh_le_co_reset_rpt_cache
+**
+** Description      This callout function is to reset the HOGP device cache.
+**
+** Parameters       remote_bda  - remote device address
+**
+** Returns          none
+**
+*******************************************************************************/
+extern void bta_hh_le_co_reset_rpt_cache (BD_ADDR remote_bda, UINT8 app_id);
+
+#endif /* #if (BLE_INCLUDED == TRUE && BTA_HH_LE_INCLUDED == TRUE) */
+#endif /* BTA_HH_CO_H */
diff --git a/rtkbt/code/bt/bta/include/bta_hl_api.h b/rtkbt/code/bt/bta/include/bta_hl_api.h
new file mode 100755
index 0000000..b8e2c9a
--- /dev/null
+++ b/rtkbt/code/bt/bta/include/bta_hl_api.h
@@ -0,0 +1,896 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the public interface file for the HeaLth device profile (HL)
+ *  subsystem of BTA, Broadcom's Bluetooth application layer for mobile
+ *  phones.
+ *
+ ******************************************************************************/
+#ifndef BTA_HL_API_H
+#define BTA_HL_API_H
+
+#include "bta_api.h"
+#include "btm_api.h"
+#include "mca_api.h"
+
+/*****************************************************************************
+**  Constants and data types
+*****************************************************************************/
+/* Extra Debug Code */
+#ifndef BTA_HL_DEBUG
+#define BTA_HL_DEBUG           TRUE
+#endif
+
+#ifndef BTA_HL_NUM_APPS
+#define BTA_HL_NUM_APPS                 12
+#endif
+
+#ifndef BTA_HL_NUM_MDEPS
+#define BTA_HL_NUM_MDEPS                13
+#endif
+
+#ifndef BTA_HL_NUM_MCLS
+#define BTA_HL_NUM_MCLS                 7
+#endif
+
+#ifndef BTA_HL_NUM_MDLS_PER_MDEP
+#define BTA_HL_NUM_MDLS_PER_MDEP        4
+#endif
+
+#ifndef BTA_HL_NUM_MDLS_PER_MCL
+#define BTA_HL_NUM_MDLS_PER_MCL         10
+#endif
+
+#ifndef BTA_HL_NUM_DATA_TYPES
+#define BTA_HL_NUM_DATA_TYPES            5   /* maximum number of data types can be supported
+                                                per MDEP ID */
+#endif
+
+#define BTA_HL_MCAP_RSP_TOUT            2    /* 2 seconds */
+
+#ifndef BTA_HL_CCH_NUM_FILTER_ELEMS
+#define BTA_HL_CCH_NUM_FILTER_ELEMS     3
+#endif
+
+#ifndef BTA_HL_NUM_SDP_CBACKS
+#define BTA_HL_NUM_SDP_CBACKS           7
+#endif
+
+#ifndef BTA_HL_NUM_SDP_RECS
+#define BTA_HL_NUM_SDP_RECS             5
+#endif
+
+#ifndef BTA_HL_NUM_SDP_MDEPS
+#define BTA_HL_NUM_SDP_MDEPS            12
+#endif
+
+#ifndef BTA_HL_NUM_SVC_ELEMS
+#define BTA_HL_NUM_SVC_ELEMS            2
+#endif
+
+#ifndef BTA_HL_NUM_PROTO_ELEMS
+#define BTA_HL_NUM_PROTO_ELEMS          2
+#endif
+
+#define BTA_HL_VERSION_01_00            0x0100
+#define BTA_HL_NUM_ADD_PROTO_LISTS      1
+#define BTA_HL_NUM_ADD_PROTO_ELEMS      2
+#define BTA_HL_MDEP_SEQ_SIZE            20
+#define BTA_HL_VAL_ARRY_SIZE            320
+
+#ifndef BTA_HL_NUM_MDL_CFGS
+#define BTA_HL_NUM_MDL_CFGS             16    /* numer of MDL cfg saved in the persistent memory*/
+#endif
+
+#define BTA_HL_NUM_TIMERS               7
+
+#define BTA_HL_CCH_RSP_TOUT             2000
+#define BTA_HL_MAX_TIME                 255
+#define BTA_HL_MIN_TIME                 1
+#define BTA_HL_INVALID_APP_HANDLE       0xFF
+#define BTA_HL_INVALID_MCL_HANDLE       0xFF
+#define BTA_HL_INVALID_MDL_HANDLE       0xFFFF
+
+#define BTA_HL_STATUS_OK                    0
+#define BTA_HL_STATUS_FAIL                  1   /* Used to pass all other errors */
+#define BTA_HL_STATUS_ABORTED               2
+#define BTA_HL_STATUS_NO_RESOURCE           3
+#define BTA_HL_STATUS_LAST_ITEM             4
+#define BTA_HL_STATUS_DUPLICATE_APP_ID      5
+#define BTA_HL_STATUS_INVALID_APP_HANDLE    6
+#define BTA_HL_STATUS_INVALID_MCL_HANDLE    7
+#define BTA_HL_STATUS_MCAP_REG_FAIL         8
+#define BTA_HL_STATUS_MDEP_CO_FAIL          9
+#define BTA_HL_STATUS_ECHO_CO_FAIL          10
+#define BTA_HL_STATUS_MDL_CFG_CO_FAIL       11
+#define BTA_HL_STATUS_SDP_NO_RESOURCE       12
+#define BTA_HL_STATUS_SDP_FAIL              13
+#define BTA_HL_STATUS_NO_CCH                14
+#define BTA_HL_STATUS_NO_MCL                15
+
+#define BTA_HL_STATUS_NO_FIRST_RELIABLE     17
+#define BTA_HL_STATUS_INVALID_DCH_CFG       18
+#define BTA_HL_STATUS_INVALID_MDL_HANDLE    19
+#define BTA_HL_STATUS_INVALID_BD_ADDR       20
+#define BTA_HL_STATUS_INVALID_RECONNECT_CFG 21
+#define BTA_HL_STATUS_ECHO_TEST_BUSY        22
+#define BTA_HL_STATUS_INVALID_LOCAL_MDEP_ID 23
+#define BTA_HL_STATUS_INVALID_MDL_ID        24
+#define BTA_HL_STATUS_NO_MDL_ID_FOUND       25
+#define BTA_HL_STATUS_DCH_BUSY              26  /* DCH is congested*/
+#define BTA_HL_STATUS_INVALID_CTRL_PSM      27
+#define BTA_HL_STATUS_DUPLICATE_CCH_OPEN    28
+
+typedef UINT8 tBTA_HL_STATUS;
+typedef tMCA_HANDLE tBTA_HL_APP_HANDLE;
+typedef tMCA_CL     tBTA_HL_MCL_HANDLE;
+typedef tMCA_DL     tBTA_HL_MDL_HANDLE;
+enum
+{
+    BTA_HL_DEVICE_TYPE_SINK,
+    BTA_HL_DEVICE_TYPE_SOURCE,
+    BTA_HL_DEVICE_TYPE_DUAL
+};
+
+typedef UINT8 tBTA_HL_DEVICE_TYPE;
+
+
+
+#define BTA_HL_SDP_IEEE_11073_20601             0x01
+
+#define BTA_HL_MCAP_SUP_RECONNECT_MASK_INIT          2 /* 0x02 */
+#define BTA_HL_MCAP_SUP_RECONNECT_MASK_ACCEPT        4 /* 0x04 */
+#define BTA_HL_MCAP_SUP_CSP_MASK_SYNC_SLAVE          0 /* 0x08 */
+#define BTA_HL_MCAP_SUP_CSP_MASK_SYNC_MASTER         0 /* 0x10 */
+
+#define BTA_HL_MCAP_SUP_PROC_MASK  (BTA_HL_MCAP_SUP_RECONNECT_MASK_INIT | \
+                                    BTA_HL_MCAP_SUP_RECONNECT_MASK_ACCEPT | \
+                                    BTA_HL_MCAP_SUP_CSP_MASK_SYNC_SLAVE | \
+                                    BTA_HL_MCAP_SUP_CSP_MASK_SYNC_MASTER)
+#define BTA_HL_MDEP_ROLE_SOURCE         0x00
+#define BTA_HL_MDEP_ROLE_SINK           0x01
+
+typedef UINT8 tBTA_HL_MDEP_ROLE;
+
+#define BTA_HL_MDEP_ROLE_MASK_SOURCE    0x01     /* bit mask */
+#define BTA_HL_MDEP_ROLE_MASK_SINK      0x02
+typedef UINT8 tBTA_HL_MDEP_ROLE_MASK;
+
+
+#define BTA_HL_ECHO_TEST_MDEP_ID        0
+#define BTA_HL_ECHO_TEST_MDEP_CFG_IDX   0
+
+#define BTA_HL_INVALID_MDEP_ID     0xFF
+typedef tMCA_DEP tBTA_HL_MDEP_ID; /* 0 is for echo test,
+                                   0x01-0x7F availave for use,
+                                   0x80-0xFF reserved*/
+
+
+#define BTA_HL_DELETE_ALL_MDL_IDS   0xFFFF
+#define BTA_HL_MAX_MDL_VAL          0xFEFF
+typedef UINT16 tBTA_HL_MDL_ID;  /* 0x0000 reserved,
+                                   0x0001-0xFEFF dynamic range,
+                                   0xFF00-0xFFFE reserved,
+                                   0xFFFF indicates all MDLs*/
+
+#define BTA_HL_MDEP_DESP_LEN       35
+
+#define BTA_HL_DCH_MODE_RELIABLE    0
+#define BTA_HL_DCH_MODE_STREAMING   1
+
+typedef UINT8 tBTA_HL_DCH_MODE;
+
+#define BTA_HL_DCH_CFG_NO_PREF      0
+#define BTA_HL_DCH_CFG_RELIABLE     1
+#define BTA_HL_DCH_CFG_STREAMING    2
+#define BTA_HL_DCH_CFG_UNKNOWN      0xFF
+
+typedef UINT8 tBTA_HL_DCH_CFG;
+
+/* The Default DCH CFG for the echo test when the device is a Source */
+#define BTA_HL_DEFAULT_ECHO_TEST_SRC_DCH_CFG BTA_HL_DCH_CFG_RELIABLE
+
+#define BTA_HL_DCH_CREATE_RSP_SUCCESS 0
+#define BTA_HL_DCH_CREATE_RSP_CFG_REJ 1
+
+typedef UINT8 tBTA_HL_DCH_CREATE_RSP;
+
+#define BTA_HL_MCAP_SUP_PROC_RECONNECT_INIT 0x02
+#define BTA_HL_MCAP_SUP_PROC_RECONNECT_APT  0x04
+#define BTA_HL_MCAP_SUP_PROC_CSP_SLAVE      0x08
+#define BTA_HL_MCAP_SUP_PROC_CSP_MASTER     0x10
+
+typedef UINT8 tBTA_HL_SUP_PROC_MASK;
+
+typedef struct
+{
+    UINT16                  max_rx_apdu_size;  /* local rcv MTU */
+    UINT16                  max_tx_apdu_size;  /* maximum TX APDU size*/
+} tBTA_HL_ECHO_CFG;
+
+
+typedef struct
+{
+    UINT16                  data_type;
+    UINT16                  max_rx_apdu_size;  /* local rcv MTU */
+    UINT16                  max_tx_apdu_size;  /* maximum TX APDU size*/
+    char                    desp[BTA_HL_MDEP_DESP_LEN+1];
+} tBTA_HL_MDEP_DATA_TYPE_CFG;
+
+
+typedef struct
+{
+    tBTA_HL_MDEP_ROLE           mdep_role;
+    UINT8                       num_of_mdep_data_types;
+    tBTA_HL_MDEP_DATA_TYPE_CFG  data_cfg[BTA_HL_NUM_DATA_TYPES];
+} tBTA_HL_MDEP_CFG;
+
+typedef struct
+{
+    tBTA_HL_MDEP_ID         mdep_id;  /* MDEP ID 0x01-0x7F */
+    tBTA_HL_MDEP_CFG        mdep_cfg;
+    UINT8                   ori_app_id;
+} tBTA_HL_MDEP;
+
+typedef struct
+{
+    tBTA_HL_MDEP            mdep[BTA_HL_NUM_MDEPS];
+    tBTA_HL_ECHO_CFG        echo_cfg;
+    tBTA_HL_MDEP_ROLE_MASK  app_role_mask;
+    BOOLEAN                 advertize_source_sdp;
+    UINT8                   num_of_mdeps;
+} tBTA_HL_SUP_FEATURE;
+
+typedef struct
+{
+    BOOLEAN                 delete_req_pending;
+    tBTA_HL_MDL_ID          mdl_id;
+    tBTA_HL_MCL_HANDLE      mcl_handle;
+} tBTA_HL_DELETE_MDL;
+
+typedef struct
+{
+    UINT8                   time;
+    UINT16                  mtu;
+    tBTA_HL_MDL_ID          mdl_id;
+    tBTA_HL_MDEP_ID         local_mdep_id;
+    tBTA_HL_MDEP_ROLE       local_mdep_role;
+    BOOLEAN                 active;     /* true if this item is in use */
+    tBTA_HL_DCH_MODE        dch_mode;
+    UINT8                   fcs;
+    BD_ADDR                 peer_bd_addr;
+} tBTA_HL_MDL_CFG;
+
+
+/* Maximum number of supported feature list items (list_elem in tSDP_SUP_FEATURE_ELEM) */
+#define BTA_HL_NUM_SUP_FEATURE_ELEMS     13
+#define BTA_HL_SUP_FEATURE_SDP_BUF_SIZE  512
+/* This structure is used to add supported feature lists and find supported feature elements */
+typedef struct
+{
+    UINT8       mdep_id;
+    UINT16      data_type;
+    tBTA_HL_MDEP_ROLE       mdep_role;
+    char        *p_mdep_desp;
+} tBTA_HL_SUP_FEATURE_ELEM;
+
+typedef struct
+{
+    UINT16                      num_elems;
+    tBTA_HL_SUP_FEATURE_ELEM   list_elem[BTA_HL_NUM_SUP_FEATURE_ELEMS];
+} tBTA_HL_SUP_FEATURE_LIST_ELEM;
+
+
+typedef struct
+{
+    tBTA_HL_DEVICE_TYPE     dev_type;           /* sink, source or dual roles */
+    tBTA_SEC                sec_mask;           /* security mask for accepting conenction*/
+    const char              *p_srv_name;        /* service name to be used in the SDP; null terminated*/
+    const char              *p_srv_desp;        /* service description to be used in the SDP; null terminated */
+    const char              *p_provider_name;   /* provide name to be used in the SDP; null terminated */
+} tBTA_HL_REG_PARAM;
+
+typedef struct
+{
+    UINT16                  ctrl_psm;
+    BD_ADDR                 bd_addr;           /* Address of peer device */
+    tBTA_SEC                sec_mask;          /* security mask for initiating connection*/
+} tBTA_HL_CCH_OPEN_PARAM;
+
+
+typedef struct
+{
+    UINT16                  ctrl_psm;
+    tBTA_HL_MDEP_ID         local_mdep_id;     /* local MDEP ID */
+    tBTA_HL_MDEP_ID         peer_mdep_id;      /* peer mdep id */
+    tBTA_HL_DCH_CFG         local_cfg;
+    tBTA_SEC                sec_mask;          /* security mask for initiating connection*/
+} tBTA_HL_DCH_OPEN_PARAM;
+
+
+typedef struct
+{
+    UINT16                  ctrl_psm;
+    tBTA_HL_MDL_ID          mdl_id;
+} tBTA_HL_DCH_RECONNECT_PARAM;
+
+
+typedef struct
+{
+    UINT16                  ctrl_psm;
+    UINT16                  pkt_size;
+    tBTA_HL_DCH_CFG         local_cfg;
+} tBTA_HL_DCH_ECHO_TEST_PARAM;
+
+typedef struct
+{
+    UINT16                  buf_size;
+    UINT8                   p_buf;        /* buffer pointer */
+} tBTA_HL_DCH_BUF_INFO;
+
+typedef struct
+{
+    tBTA_HL_MDEP_ID         local_mdep_id;  /* local MDEP ID */
+    tBTA_HL_MDL_ID          mdl_id;
+    tBTA_HL_DCH_CREATE_RSP  rsp_code;
+    tBTA_HL_DCH_CFG         cfg_rsp;
+} tBTA_HL_DCH_CREATE_RSP_PARAM;
+
+typedef struct
+{
+    UINT16              data_type;
+    UINT8               mdep_id;
+    tBTA_HL_MDEP_ROLE   mdep_role;
+    char                mdep_desp[BTA_HL_MDEP_DESP_LEN+1];
+}tBTA_HL_SDP_MDEP_CFG;
+
+typedef struct
+{
+    UINT16                  ctrl_psm;
+    UINT16                  data_psm;
+    UINT8                   mcap_sup_proc;
+    UINT8                   num_mdeps; /* number of mdep elements from SDP*/
+    char                    srv_name[BTA_SERVICE_NAME_LEN+1];
+    char                    srv_desp[BTA_SERVICE_DESP_LEN+1];
+    char                    provider_name[BTA_PROVIDER_NAME_LEN+1];
+    tBTA_HL_SDP_MDEP_CFG    mdep_cfg[BTA_HL_NUM_SDP_MDEPS];
+} tBTA_HL_SDP_REC;
+
+typedef struct
+{
+    UINT8                num_recs;
+    tBTA_HL_SDP_REC      sdp_rec[BTA_HL_NUM_SDP_RECS];
+} tBTA_HL_SDP;
+
+/* HL control callback function events */
+enum
+{
+    BTA_HL_CTRL_ENABLE_CFM_EVT            = 0,
+    BTA_HL_CTRL_DISABLE_CFM_EVT
+};
+typedef UINT8 tBTA_HL_CTRL_EVT;
+/* Structure associated with BTA_HL_ENABLE_EVT
+   BTA_HL_DISABLE_EVT */
+
+typedef struct
+{
+    tBTA_HL_STATUS  status;
+} tBTA_HL_CTRL_ENABLE_DISABLE;
+
+typedef union
+{
+    tBTA_HL_CTRL_ENABLE_DISABLE  enable_cfm;
+    tBTA_HL_CTRL_ENABLE_DISABLE  disable_cfm;
+} tBTA_HL_CTRL;
+
+/* HL instance callback function events */
+enum
+{
+    BTA_HL_REGISTER_CFM_EVT           =0,
+    BTA_HL_DEREGISTER_CFM_EVT,
+    BTA_HL_CCH_OPEN_IND_EVT,
+    BTA_HL_CCH_OPEN_CFM_EVT,
+    BTA_HL_CCH_CLOSE_IND_EVT,
+    BTA_HL_CCH_CLOSE_CFM_EVT,
+    BTA_HL_DCH_CREATE_IND_EVT,
+    BTA_HL_DCH_OPEN_IND_EVT,
+    BTA_HL_DCH_OPEN_CFM_EVT,
+    BTA_HL_DCH_CLOSE_IND_EVT,
+    BTA_HL_DCH_CLOSE_CFM_EVT,
+    BTA_HL_DCH_RECONNECT_IND_EVT,
+    BTA_HL_DCH_RECONNECT_CFM_EVT,
+
+    BTA_HL_DCH_ABORT_IND_EVT,
+    BTA_HL_DCH_ABORT_CFM_EVT,
+    BTA_HL_DELETE_MDL_IND_EVT,
+    BTA_HL_DELETE_MDL_CFM_EVT,
+    BTA_HL_DCH_SEND_DATA_CFM_EVT,
+    BTA_HL_DCH_RCV_DATA_IND_EVT,
+    BTA_HL_CONG_CHG_IND_EVT,
+    BTA_HL_DCH_ECHO_TEST_CFM_EVT,
+    BTA_HL_SDP_QUERY_CFM_EVT,
+    BTA_HL_SDP_INFO_IND_EVT
+};
+typedef UINT8 tBTA_HL_EVT;
+
+
+typedef struct
+{
+    tBTA_HL_STATUS          status;        /* start status */
+    UINT8                   app_id;
+    tBTA_HL_APP_HANDLE      app_handle;
+} tBTA_HL_REGISTER_CFM;
+
+
+typedef struct
+{
+    tBTA_HL_STATUS          status;        /* start status */
+    UINT8                   app_id;
+    tBTA_HL_APP_HANDLE      app_handle;
+} tBTA_HL_DEREGISTER_CFM;
+
+
+typedef struct
+{
+    BOOLEAN                 intentional;
+    tBTA_HL_MCL_HANDLE      mcl_handle;
+    tBTA_HL_APP_HANDLE      app_handle;
+} tBTA_HL_CCH_CLOSE_IND;
+
+
+typedef struct
+{
+    tBTA_HL_MCL_HANDLE      mcl_handle;
+    tBTA_HL_APP_HANDLE      app_handle;
+} tBTA_HL_MCL_IND;
+
+typedef struct
+{
+    tBTA_HL_STATUS          status;             /* connection status */
+    tBTA_HL_MCL_HANDLE      mcl_handle;
+    tBTA_HL_APP_HANDLE      app_handle;
+} tBTA_HL_MCL_CFM;
+
+typedef struct
+{
+    tBTA_HL_MCL_HANDLE      mcl_handle;
+    tBTA_HL_APP_HANDLE      app_handle;
+    BD_ADDR                 bd_addr; /* address of peer device */
+} tBTA_HL_CCH_OPEN_IND;
+
+typedef struct
+{
+    tBTA_HL_STATUS          status;             /* connection status */
+    UINT8                   app_id;
+    tBTA_HL_MCL_HANDLE      mcl_handle;
+    tBTA_HL_APP_HANDLE      app_handle;
+    BD_ADDR                 bd_addr;            /* address of peer device */
+} tBTA_HL_CCH_OPEN_CFM;
+
+typedef struct
+{
+    tBTA_HL_MCL_HANDLE      mcl_handle;
+    tBTA_HL_APP_HANDLE      app_handle;
+    tBTA_HL_MDEP_ID         local_mdep_id;
+    tBTA_HL_MDL_ID          mdl_id;             /* MCAP data link ID for this
+                                                   data channel conenction    */
+    tBTA_HL_DCH_CFG         cfg;                /* dch cfg requested by the peer device */
+    BD_ADDR                 bd_addr; /* address of peer device */
+
+} tBTA_HL_DCH_CREATE_IND;
+
+typedef struct
+{
+    tBTA_HL_MDL_HANDLE      mdl_handle;
+    tBTA_HL_MCL_HANDLE      mcl_handle;
+    tBTA_HL_APP_HANDLE      app_handle;
+    tBTA_HL_MDEP_ID         local_mdep_id;
+    tBTA_HL_MDL_ID          mdl_id;             /* MCAP data link ID for this
+                                                   data channel conenction    */
+    tBTA_HL_DCH_MODE        dch_mode;           /* data channel mode - reliable or streaming*/
+
+    BOOLEAN                 first_reliable;  /* whether this is the first reliable data channel */
+    UINT16                  mtu;
+} tBTA_HL_DCH_OPEN_IND;
+
+typedef struct
+{
+    tBTA_HL_STATUS          status;             /* connection status */
+    tBTA_HL_MDL_HANDLE      mdl_handle;
+    tBTA_HL_MCL_HANDLE      mcl_handle;
+    tBTA_HL_APP_HANDLE      app_handle;
+    tBTA_HL_MDEP_ID         local_mdep_id;
+    tBTA_HL_MDL_ID          mdl_id;             /* MCAP data link ID for this
+                                                   data channel conenction    */
+    tBTA_HL_DCH_MODE        dch_mode;           /* data channel mode - reliable or streaming*/
+    BOOLEAN                 first_reliable;     /* whether this is the first reliable data channel */
+    UINT16                  mtu;
+} tBTA_HL_DCH_OPEN_CFM;
+
+
+typedef struct
+{
+    BOOLEAN                 intentional;
+    tBTA_HL_MDL_HANDLE      mdl_handle;
+    tBTA_HL_MCL_HANDLE      mcl_handle;
+    tBTA_HL_APP_HANDLE      app_handle;
+} tBTA_HL_DCH_CLOSE_IND;
+
+
+typedef struct
+{
+    tBTA_HL_MDL_HANDLE      mdl_handle;
+    tBTA_HL_MCL_HANDLE      mcl_handle;
+    tBTA_HL_APP_HANDLE      app_handle;
+} tBTA_HL_MDL_IND;
+
+typedef struct
+{
+    tBTA_HL_STATUS          status;
+    tBTA_HL_MDL_HANDLE      mdl_handle;
+    tBTA_HL_MCL_HANDLE      mcl_handle;
+    tBTA_HL_APP_HANDLE      app_handle;
+} tBTA_HL_MDL_CFM;
+
+typedef struct
+{
+    tBTA_HL_MCL_HANDLE      mcl_handle;
+    tBTA_HL_APP_HANDLE      app_handle;
+    tBTA_HL_MDL_ID          mdl_id;
+} tBTA_HL_DELETE_MDL_IND;
+
+typedef struct
+{
+    tBTA_HL_STATUS          status;
+    tBTA_HL_MCL_HANDLE      mcl_handle;
+    tBTA_HL_APP_HANDLE      app_handle;
+    tBTA_HL_MDL_ID          mdl_id;
+} tBTA_HL_DELETE_MDL_CFM;
+
+typedef struct
+{
+    tBTA_HL_MDL_HANDLE      mdl_handle;
+    tBTA_HL_MCL_HANDLE      mcl_handle;
+    tBTA_HL_APP_HANDLE      app_handle;
+    BOOLEAN                 cong;
+} tBTA_HL_DCH_CONG_IND;
+
+typedef struct
+{
+    tBTA_HL_APP_HANDLE      app_handle;
+    UINT16                  ctrl_psm;
+    UINT16                  data_psm;
+    UINT8                   data_x_spec;
+    UINT8                   mcap_sup_procs;
+} tBTA_HL_SDP_INFO_IND;
+
+typedef struct
+{
+    tBTA_HL_STATUS          status;
+    UINT8                   app_id;
+    tBTA_HL_APP_HANDLE      app_handle;
+    BD_ADDR                 bd_addr;
+    tBTA_HL_SDP             *p_sdp;
+} tBTA_HL_SDP_QUERY_CFM;
+
+typedef union
+{
+    tBTA_HL_REGISTER_CFM        reg_cfm;
+    tBTA_HL_DEREGISTER_CFM      dereg_cfm;
+    tBTA_HL_CCH_OPEN_IND        cch_open_ind;
+    tBTA_HL_CCH_OPEN_CFM        cch_open_cfm;
+    tBTA_HL_CCH_CLOSE_IND       cch_close_ind;
+    tBTA_HL_MCL_CFM             cch_close_cfm;
+    tBTA_HL_DCH_CREATE_IND      dch_create_ind;
+    tBTA_HL_DCH_OPEN_IND        dch_open_ind;
+    tBTA_HL_DCH_OPEN_CFM        dch_open_cfm;
+    tBTA_HL_DCH_CLOSE_IND       dch_close_ind;
+    tBTA_HL_MDL_CFM             dch_close_cfm;
+    tBTA_HL_DCH_OPEN_IND        dch_reconnect_ind;
+    tBTA_HL_DCH_OPEN_CFM        dch_reconnect_cfm;
+    tBTA_HL_MCL_IND             dch_abort_ind;
+    tBTA_HL_MCL_CFM             dch_abort_cfm;
+    tBTA_HL_DELETE_MDL_IND      delete_mdl_ind;
+    tBTA_HL_DELETE_MDL_CFM      delete_mdl_cfm;
+    tBTA_HL_MDL_CFM             dch_send_data_cfm;
+    tBTA_HL_MDL_IND             dch_rcv_data_ind;
+    tBTA_HL_DCH_CONG_IND        dch_cong_ind;
+    tBTA_HL_MCL_CFM             echo_test_cfm;
+    tBTA_HL_SDP_QUERY_CFM       sdp_query_cfm;
+    tBTA_HL_SDP_INFO_IND        sdp_info_ind;
+
+} tBTA_HL;
+
+/* HL callback functions */
+typedef void tBTA_HL_CTRL_CBACK(tBTA_HL_CTRL_EVT event, tBTA_HL_CTRL *p_data);
+typedef void tBTA_HL_CBACK(tBTA_HL_EVT event, tBTA_HL *p_data);
+
+
+/*****************************************************************************
+**  External Function Declarations
+*****************************************************************************/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+/**************************
+**  API Functions
+***************************/
+
+/*******************************************************************************
+**
+** Function         BTA_HlEnable
+**
+** Description      Enable the HL subsystems.  This function must be
+**                  called before any other functions in the HL API are called.
+**                  When the enable operation is completed the callback function
+**                  will be called with an BTA_HL_CTRL_ENABLE_CFM_EVT event.
+**
+** Parameters       p_cback - HL event call back function
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_HlEnable(tBTA_HL_CTRL_CBACK *p_ctrl_cback);
+/*******************************************************************************
+**
+** Function         BTA_HlDisable
+**
+** Description     Disable the HL subsystem.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_HlDisable(void);
+
+/*******************************************************************************
+**
+** Function         BTA_HlUpdate
+**
+** Description      Register an HDP application
+**
+** Parameters       app_id        - Application ID
+**                  p_reg_param   - non-platform related parameters for the
+**                                  HDP application
+**                  p_cback       - HL event callback fucntion
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_HlUpdate(UINT8  app_id,
+                         tBTA_HL_REG_PARAM *p_reg_param, BOOLEAN is_register,
+                         tBTA_HL_CBACK *p_cback);
+
+/*******************************************************************************
+**
+** Function         BTA_HlRegister
+**
+** Description      Register a HDP application
+**
+**
+** Parameters       app_id        - hdp application ID
+**                  p_reg_param   - non-platform related parameters for the
+**                                  HDP application
+**                  p_cback       - HL event callback fucntion
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_HlRegister(UINT8  app_id,
+                           tBTA_HL_REG_PARAM *p_reg_param,
+                           tBTA_HL_CBACK *p_cback);
+
+/*******************************************************************************
+**
+** Function         BTA_HlDeregister
+**
+** Description      Deregister an HDP application
+**
+** Parameters       app_handle - Application handle
+**
+** Returns         void
+**
+*******************************************************************************/
+extern void BTA_HlDeregister(UINT8 app_id,tBTA_HL_APP_HANDLE app_handle);
+
+/*******************************************************************************
+**
+** Function         BTA_HlCchOpen
+**
+** Description      Open a Control channel connection with the specified BD address
+**                  and the control PSM value is used to select which
+**                  HDP insatnce should be used in case the peer device support
+**                  multiple HDP instances.
+**
+**
+** Parameters       app_handle - Application Handle
+**                  p_open_param - parameters for opening a control channel
+**
+** Returns          void
+**
+**                  Note: If the control PSM value is zero then the first HDP
+**                        instance is used for the control channel setup
+*******************************************************************************/
+extern void BTA_HlCchOpen(UINT8 app_id, tBTA_HL_APP_HANDLE app_handle,
+                          tBTA_HL_CCH_OPEN_PARAM *p_open_param);
+
+/*******************************************************************************
+**
+** Function         BTA_HlCchClose
+**
+** Description      Close a Control channel connection with the specified MCL
+**                  handle
+**
+** Parameters       mcl_handle - MCL handle
+**
+** Returns          void
+**
+*******************************************************************************/
+extern  void BTA_HlCchClose(tBTA_HL_MCL_HANDLE mcl_handle);
+
+/*******************************************************************************
+**
+** Function         BTA_HlDchOpen
+**
+** Description      Open a data channel connection with the specified DCH parameters
+**
+** Parameters       mcl_handle - MCL handle
+**                  p_open_param - parameters for opening a data channel
+**
+** Returns          void
+**
+*******************************************************************************/
+extern  void BTA_HlDchOpen(tBTA_HL_MCL_HANDLE mcl_handle,
+                           tBTA_HL_DCH_OPEN_PARAM *p_open_param);
+/*******************************************************************************
+**
+** Function         BTA_HlDchReconnect
+**
+** Description      Reconnect a data channel with the specified MDL_ID
+**
+** Parameters       mcl_handle      - MCL handle
+*8                  p_recon_param   - parameters for reconnecting a data channel
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_HlDchReconnect(tBTA_HL_MCL_HANDLE mcl_handle,
+                               tBTA_HL_DCH_RECONNECT_PARAM *p_recon_param);
+/*******************************************************************************
+**
+** Function         BTA_HlDchClose
+**
+** Description      Close a data channel with the specified MDL handle
+**
+** Parameters       mdl_handle  - MDL handle
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_HlDchClose(tBTA_HL_MDL_HANDLE mdl_handle);
+
+/*******************************************************************************
+**
+** Function         BTA_HlDchAbort
+**
+** Description      Abort the current data channel setup with the specified MCL
+**                  handle
+**
+** Parameters       mcl_handle  - MCL handle
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_HlDchAbort(tBTA_HL_MCL_HANDLE mcl_handle);
+
+/*******************************************************************************
+**
+** Function         BTA_HlSendData
+**
+** Description      Send an APDU to the peer device
+**
+** Parameters       mdl_handle  - MDL handle
+**                  pkt_size    - size of the data packet to be sent
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_HlSendData(tBTA_HL_MDL_HANDLE mdl_handle,
+                           UINT16           pkt_size);
+
+/*******************************************************************************
+**
+** Function         BTA_HlDeleteMdl
+**
+** Description      Delete the specified MDL_ID within the specified MCL handle
+**
+** Parameters       mcl_handle  - MCL handle
+**                  mdl_id      - MDL ID
+**
+** Returns          void
+**
+**                  note: If mdl_id = 0xFFFF then this means to delete all MDLs
+**                        and this value can only be used with DeleteMdl request only
+**                        not other requests
+**
+*******************************************************************************/
+extern void BTA_HlDeleteMdl(tBTA_HL_MCL_HANDLE mcl_handle,
+                            tBTA_HL_MDL_ID mdl_id );
+
+/*******************************************************************************
+**
+** Function         BTA_HlDchEchoTest
+**
+** Description      Initiate an echo test with the specified MCL handle
+**
+** Parameters       mcl_handle           - MCL handle
+*8                  p_echo_test_param   -  parameters for echo testing
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_HlDchEchoTest( tBTA_HL_MCL_HANDLE  mcl_handle,
+                               tBTA_HL_DCH_ECHO_TEST_PARAM *p_echo_test_param);
+
+/*******************************************************************************
+**
+** Function         BTA_HlSdpQuery
+**
+** Description      SDP query request for the specified BD address
+**
+** Parameters       app_id
+                        app_handle      - application handle
+**                  bd_addr         - BD address
+**
+** Returns          void
+**
+*******************************************************************************/
+extern  void BTA_HlSdpQuery(UINT8  app_id,tBTA_HL_APP_HANDLE app_handle,
+                            BD_ADDR bd_addr);
+
+/*******************************************************************************
+**
+** Function         BTA_HlDchCreateMdlRsp
+**
+** Description      Set the Response and configuration values for the Create MDL
+**                  request
+**
+** Parameters       mcl_handle  - MCL handle
+**                  p_rsp_param - parameters specified whether the request should
+**                                be accepted or not and if it should be accepted
+**                                then it also specified the configuration response
+**                                value
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_HlDchCreateRsp(tBTA_HL_MCL_HANDLE mcl_handle,
+                               tBTA_HL_DCH_CREATE_RSP_PARAM *p_rsp_param);
+
+
+
+#ifdef __cplusplus
+
+}
+#endif
+
+#endif /* BTA_HL_API_H */
diff --git a/rtkbt/code/bt/bta/include/bta_hl_ci.h b/rtkbt/code/bt/bta/include/bta_hl_ci.h
new file mode 100755
index 0000000..c808938
--- /dev/null
+++ b/rtkbt/code/bt/bta/include/bta_hl_ci.h
@@ -0,0 +1,123 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the interface file for the HL (HeaLth device profile) subsystem
+ *  call-in functions.
+ *
+ ******************************************************************************/
+#ifndef BTA_HL_CI_H
+#define BTA_HL_CI_H
+
+#include "bta_api.h"
+#include "bta_hl_api.h"
+
+
+/*****************************************************************************
+**  Constants and Data Types
+*****************************************************************************/
+/**************************
+**  Common Definitions
+***************************/
+/* Read Ready Event */
+/*****************************************************************************
+**  Function Declarations
+*****************************************************************************/
+/**************************
+**  Common Functions
+***************************/
+/*******************************************************************************
+**
+** Function         bta_hl_ci_get_tx_data
+**
+** Description      This function is called in response to the
+**                  bta_hl_co_get_tx_data call-out function.
+**
+** Parameters       mdl_handle -MDL handle
+**                  status - BTA_MA_STATUS_OK if operation is successful
+**                           BTA_MA_STATUS_FAIL if any errors have occurred.
+**                  evt    - evt from the call-out function
+**
+** Returns          void
+**
+*******************************************************************************/
+extern  void bta_hl_ci_get_tx_data(  tBTA_HL_MDL_HANDLE mdl_handle,
+                                     tBTA_HL_STATUS status,
+                                     UINT16 evt );
+
+/*******************************************************************************
+**
+** Function         bta_hl_ci_put_rx_data
+**
+** Description      This function is called in response to the
+**                  bta_hl_co_put_rx_data call-out function.
+**
+** Parameters       mdl_handle -MDL handle
+**                  status - BTA_MA_STATUS_OK if operation is successful
+**                           BTA_MA_STATUS_FAIL if any errors have occurred.
+**                  evt    - evt from the call-out function
+**
+** Returns          void
+**
+*******************************************************************************/
+extern  void bta_hl_ci_put_rx_data(  tBTA_HL_MDL_HANDLE mdl_handle,
+                                     tBTA_HL_STATUS status,
+                                     UINT16 evt );
+
+
+
+/*******************************************************************************
+**
+** Function         bta_hl_ci_get_echo_data
+**
+** Description      This function is called in response to the
+**                  bta_hl_co_get_echo_data call-out function.
+**
+** Parameters       mcl_handle -MCL handle
+**                  status - BTA_MA_STATUS_OK if operation is successful
+**                           BTA_MA_STATUS_FAIL if any errors have occurred.
+**                  evt    - evt from the call-out function
+**
+** Returns          void
+**
+*******************************************************************************/
+extern  void bta_hl_ci_get_echo_data(  tBTA_HL_MCL_HANDLE mcl_handle,
+                                       tBTA_HL_STATUS status,
+                                       UINT16 evt );
+
+
+/*******************************************************************************
+**
+** Function         bta_hl_ci_put_echo_data
+**
+** Description      This function is called in response to the
+**                  bta_hl_co_put_echo_data call-out function.
+**
+** Parameters       mcl_handle -MCL handle
+**                  status - BTA_MA_STATUS_OK if operation is successful
+**                           BTA_MA_STATUS_FAIL if any errors have occurred.
+**                  evt    - evt from the call-out function
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void bta_hl_ci_put_echo_data(  tBTA_HL_MCL_HANDLE mcl_handle,
+                                      tBTA_HL_STATUS status,
+                                      UINT16 evt );
+#endif /* BTA_HL_CI_H */
diff --git a/rtkbt/code/bt/bta/include/bta_hl_co.h b/rtkbt/code/bt/bta/include/bta_hl_co.h
new file mode 100755
index 0000000..05b37c7
--- /dev/null
+++ b/rtkbt/code/bt/bta/include/bta_hl_co.h
@@ -0,0 +1,234 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the interface file for the HL (HeaLth device profile) subsystem
+ *  call-out functions.
+ *
+ ******************************************************************************/
+#ifndef BTA_HL_CO_H
+#define BTA_HL_CO_H
+
+#include "bta_api.h"
+#include "bta_hl_api.h"
+
+/*****************************************************************************
+**  Constants and Data Types
+*****************************************************************************/
+/**************************
+**  Common Definitions
+***************************/
+
+
+/*******************************************************************************
+**
+** Function        bta_hl_co_get_num_of_mdep
+**
+** Description     This function is called to get the number of MDEPs for this
+**                 application ID
+**
+** Parameters      app_id - application ID
+**                 p_num_of_mdep (output) - number of MDEP configurations supported
+**                                          by the application
+**
+** Returns         Bloolean - TRUE success
+**
+*******************************************************************************/
+extern BOOLEAN bta_hl_co_get_num_of_mdep(UINT8 app_id, UINT8 *p_num_of_mdep);
+/*******************************************************************************
+**
+** Function        bta_hl_co_advrtise_source_sdp
+**
+** Description     This function is called to find out whether the SOURCE MDEP
+**                 configuration information should be advertize in the SDP or nopt
+**
+** Parameters      app_id - application ID
+**
+** Returns         Bloolean - TRUE advertise the SOURCE MDEP configuration
+**                            information
+**
+*******************************************************************************/
+extern BOOLEAN bta_hl_co_advrtise_source_sdp(UINT8 app_id);
+/*******************************************************************************
+**
+** Function        bta_hl_co_get_mdep_config
+**
+** Description     This function is called to get the supported feature
+**                 configuration for the specified mdep index and it also assigns
+**                 the MDEP ID for the specified mdep index
+**
+** Parameters      app_id - HDP application ID
+**                 mdep_idx - the mdep index
+**                  mdep_counter - mdep_counter
+**                 mdep_id  - the assigned MDEP ID for the specified medp_idx
+**                 p_mdl_cfg (output) - pointer to the MDEP configuration
+**
+**
+** Returns         Bloolean - TRUE success
+*******************************************************************************/
+extern BOOLEAN bta_hl_co_get_mdep_config(UINT8 app_id,
+                                         UINT8 mdep_idx,
+                                         UINT8 mdep_counter,
+                                         tBTA_HL_MDEP_ID mdep_id,
+                                         tBTA_HL_MDEP_CFG *p_mdep_cfg);
+
+
+/*******************************************************************************
+**
+** Function        bta_hl_co_get_echo_config
+**
+** Description     This function is called to get the echo test
+**                 maximum APDU size configuration
+**
+** Parameters      app_id - HDP application ID
+**                 p_echo_cfg (output) - pointer to the Echo test maximum APDU size
+**                                       configuration
+**
+** Returns         Bloolean - TRUE success
+*******************************************************************************/
+extern BOOLEAN bta_hl_co_get_echo_config(UINT8  app_id,
+                                         tBTA_HL_ECHO_CFG *p_echo_cfg);
+
+
+/*******************************************************************************
+**
+** Function        bta_hl_co_save_mdl
+**
+** Description     This function is called to save a MDL configuration item in persistent
+**                 storage
+**
+** Parameters      app_id - HDP application ID
+**                 item_idx - the MDL configuration storage index
+**                 p_mdl_cfg - pointer to the MDL configuration data
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void bta_hl_co_save_mdl(UINT8 app_id, UINT8 item_idx, tBTA_HL_MDL_CFG *p_mdl_cfg );
+/*******************************************************************************
+**
+** Function        bta_hl_co_delete_mdl
+**
+** Description     This function is called to delete a MDL configuration item in persistent
+**                 storage
+**
+** Parameters      app_id - HDP application ID
+**                 item_idx - the MDL configuration storage index
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void bta_hl_co_delete_mdl(UINT8 app_id, UINT8 item_idx);
+/*******************************************************************************
+**
+** Function         bta_hl_co_get_mdl_config
+**
+** Description     This function is called to get the MDL configuration
+**                 from teh persistent memory. This function shall only be called
+*8                 once after the device is powered up
+**
+** Parameters      app_id - HDP application ID
+**                 buffer_size - the unit of the buffer size is sizeof(tBTA_HL_MDL_CFG)
+**                 p_mdl_buf - Point to the starting location of the buffer
+**
+** Returns         BOOLEAN
+**
+**
+*******************************************************************************/
+extern BOOLEAN bta_hl_co_load_mdl_config (UINT8 app_id, UINT8 buffer_size,
+                                          tBTA_HL_MDL_CFG *p_mdl_buf );
+
+
+/*******************************************************************************
+**
+** Function         bta_hl_co_get_tx_data
+**
+** Description     Get the data to be sent
+**
+** Parameters      app_id - HDP application ID
+**                 mdl_handle - MDL handle
+**                 buf_size - the size of the buffer
+**                 p_buf - the buffer pointer
+**                 evt - the evt to be passed back to the HL in the
+**                       bta_hl_ci_get_tx_data call-in function
+**
+** Returns        Void
+**
+*******************************************************************************/
+extern void bta_hl_co_get_tx_data (UINT8 app_id, tBTA_HL_MDL_HANDLE mdl_handle,
+                                   UINT16 buf_size, UINT8 *p_buf, UINT16 evt);
+
+
+/*******************************************************************************
+**
+** Function        bta_hl_co_put_rx_data
+**
+** Description     Put the received data
+**
+** Parameters      app_id - HDP application ID
+**                 mdl_handle - MDL handle
+**                 data_size - the size of the data
+**                 p_data - the data pointer
+**                 evt - the evt to be passed back to the HL in the
+**                       bta_hl_ci_put_rx_data call-in function
+**
+** Returns        Void
+**
+*******************************************************************************/
+extern void bta_hl_co_put_rx_data (UINT8 app_id, tBTA_HL_MDL_HANDLE mdl_handle,
+                                   UINT16 data_size, UINT8 *p_data, UINT16 evt);
+/*******************************************************************************
+**
+** Function         bta_hl_co_get_tx_data
+**
+** Description     Get the Echo data to be sent
+**
+** Parameters      app_id - HDP application ID
+**                 mcl_handle - MCL handle
+**                 buf_size - the size of the buffer
+**                 p_buf - the buffer pointer
+**                 evt - the evt to be passed back to the HL in the
+**                       bta_hl_ci_get_tx_data call-in function
+**
+** Returns        Void
+**
+*******************************************************************************/
+extern void bta_hl_co_get_echo_data (UINT8 app_id, tBTA_HL_MCL_HANDLE mcl_handle,
+                                     UINT16 buf_size, UINT8 *p_buf, UINT16 evt);
+
+/*******************************************************************************
+**
+** Function        bta_hl_co_put_echo_data
+**
+** Description     Put the received loopback echo data
+**
+** Parameters      app_id - HDP application ID
+**                 mcl_handle - MCL handle
+**                 data_size - the size of the data
+**                 p_data - the data pointer
+**                 evt - the evt to be passed back to the HL in the
+**                       bta_hl_ci_put_echo_data call-in function
+**
+** Returns        Void
+**
+*******************************************************************************/
+extern void bta_hl_co_put_echo_data (UINT8 app_id, tBTA_HL_MCL_HANDLE mcl_handle,
+                                     UINT16 data_size, UINT8 *p_data, UINT16 evt);
+
+#endif /* BTA_HL_CO_H */
diff --git a/rtkbt/code/bt/bta/include/bta_jv_api.h b/rtkbt/code/bt/bta/include/bta_jv_api.h
new file mode 100755
index 0000000..f4999c5
--- /dev/null
+++ b/rtkbt/code/bt/bta/include/bta_jv_api.h
@@ -0,0 +1,825 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2006-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the public interface file the BTA Java I/F
+ *
+ ******************************************************************************/
+#ifndef BTA_JV_API_H
+#define BTA_JV_API_H
+
+#include "bt_target.h"
+#include "bt_types.h"
+#include "bta_api.h"
+#include "btm_api.h"
+#include "l2c_api.h"
+
+/*****************************************************************************
+**  Constants and data types
+*****************************************************************************/
+/* status values */
+#define BTA_JV_SUCCESS             0            /* Successful operation. */
+#define BTA_JV_FAILURE             1            /* Generic failure. */
+#define BTA_JV_BUSY                2            /* Temporarily can not handle this request. */
+#define BTA_JV_NO_DATA             3            /* no data. */
+#define BTA_JV_NO_RESOURCE         4            /* No more set pm control block */
+
+typedef UINT8 tBTA_JV_STATUS;
+#define BTA_JV_INTERNAL_ERR        (-1) /* internal error. */
+
+#define BTA_JV_MAX_UUIDS        SDP_MAX_UUID_FILTERS
+#define BTA_JV_MAX_ATTRS        SDP_MAX_ATTR_FILTERS
+#define BTA_JV_MAX_SDP_REC      SDP_MAX_RECORDS
+#define BTA_JV_MAX_L2C_CONN     GAP_MAX_CONNECTIONS /* GAP handle is used as index, hence do not change this value */
+#define BTA_JV_MAX_SCN          PORT_MAX_RFC_PORTS /* same as BTM_MAX_SCN (in btm_int.h) */
+#define BTA_JV_MAX_RFC_CONN     MAX_RFC_PORTS
+
+#ifndef BTA_JV_DEF_RFC_MTU
+#define BTA_JV_DEF_RFC_MTU      (3*330)
+#endif
+
+#ifndef BTA_JV_MAX_RFC_SR_SESSION
+#define BTA_JV_MAX_RFC_SR_SESSION   MAX_BD_CONNECTIONS
+#endif
+
+/* BTA_JV_MAX_RFC_SR_SESSION can not be bigger than MAX_BD_CONNECTIONS */
+#if (BTA_JV_MAX_RFC_SR_SESSION > MAX_BD_CONNECTIONS)
+#undef BTA_JV_MAX_RFC_SR_SESSION
+#define BTA_JV_MAX_RFC_SR_SESSION   MAX_BD_CONNECTIONS
+#endif
+
+#define BTA_JV_FIRST_SERVICE_ID BTA_FIRST_JV_SERVICE_ID
+#define BTA_JV_LAST_SERVICE_ID  BTA_LAST_JV_SERVICE_ID
+#define BTA_JV_NUM_SERVICE_ID   (BTA_LAST_JV_SERVICE_ID - BTA_FIRST_JV_SERVICE_ID + 1)
+
+/* Discoverable modes */
+enum
+{
+    BTA_JV_DISC_NONE,
+    BTA_JV_DISC_LIMITED,
+    BTA_JV_DISC_GENERAL
+};
+typedef UINT16 tBTA_JV_DISC;
+
+#define BTA_JV_ROLE_SLAVE       BTM_ROLE_SLAVE
+#define BTA_JV_ROLE_MASTER      BTM_ROLE_MASTER
+typedef UINT32 tBTA_JV_ROLE;
+
+#define BTA_JV_SERVICE_LMTD_DISCOVER    BTM_COD_SERVICE_LMTD_DISCOVER   /* 0x0020 */
+#define BTA_JV_SERVICE_POSITIONING      BTM_COD_SERVICE_POSITIONING     /* 0x0100 */
+#define BTA_JV_SERVICE_NETWORKING       BTM_COD_SERVICE_NETWORKING      /* 0x0200 */
+#define BTA_JV_SERVICE_RENDERING        BTM_COD_SERVICE_RENDERING       /* 0x0400 */
+#define BTA_JV_SERVICE_CAPTURING        BTM_COD_SERVICE_CAPTURING       /* 0x0800 */
+#define BTA_JV_SERVICE_OBJ_TRANSFER     BTM_COD_SERVICE_OBJ_TRANSFER    /* 0x1000 */
+#define BTA_JV_SERVICE_AUDIO            BTM_COD_SERVICE_AUDIO           /* 0x2000 */
+#define BTA_JV_SERVICE_TELEPHONY        BTM_COD_SERVICE_TELEPHONY       /* 0x4000 */
+#define BTA_JV_SERVICE_INFORMATION      BTM_COD_SERVICE_INFORMATION     /* 0x8000 */
+
+/* JV ID type */
+#define BTA_JV_PM_ID_1             1    /* PM example profile 1 */
+#define BTA_JV_PM_ID_2             2    /* PM example profile 2 */
+#define BTA_JV_PM_ID_CLEAR         0    /* Special JV ID used to clear PM profile */
+#define BTA_JV_PM_ALL              0xFF /* Generic match all id, see bta_dm_cfg.c */
+typedef UINT8 tBTA_JV_PM_ID;
+
+#define BTA_JV_PM_HANDLE_CLEAR     0xFF /* Special JV ID used to clear PM profile  */
+
+/* define maximum number of registered PM entities. should be in sync with bta pm! */
+#ifndef BTA_JV_PM_MAX_NUM
+#define BTA_JV_PM_MAX_NUM 5
+#endif
+
+/* JV pm connection states */
+enum
+{
+    BTA_JV_CONN_OPEN = 0,   /* Connection opened state */
+    BTA_JV_CONN_CLOSE,      /* Connection closed state */
+    BTA_JV_APP_OPEN,        /* JV Application opened state */
+    BTA_JV_APP_CLOSE,       /* JV Application closed state */
+    BTA_JV_SCO_OPEN,        /* SCO connection opened state */
+    BTA_JV_SCO_CLOSE,       /* SCO connection opened state */
+    BTA_JV_CONN_IDLE,       /* Connection idle state */
+    BTA_JV_CONN_BUSY,       /* Connection busy state */
+    BTA_JV_MAX_CONN_STATE   /* Max number of connection state */
+};
+typedef UINT8 tBTA_JV_CONN_STATE;
+
+/* JV Connection types */
+#define BTA_JV_CONN_TYPE_RFCOMM    0
+#define BTA_JV_CONN_TYPE_L2CAP     1
+#define BTA_JV_CONN_TYPE_L2CAP_LE  2
+
+/* Java I/F callback events */
+/* events received by tBTA_JV_DM_CBACK */
+#define BTA_JV_ENABLE_EVT           0  /* JV enabled */
+#define BTA_JV_GET_SCN_EVT          6  /* Reserved an SCN */
+#define BTA_JV_GET_PSM_EVT          7  /* Reserved a PSM */
+#define BTA_JV_DISCOVERY_COMP_EVT   8  /* SDP discovery complete */
+#define BTA_JV_CREATE_RECORD_EVT    11 /* the result for BTA_JvCreateRecord */
+/* events received by tBTA_JV_L2CAP_CBACK */
+#define BTA_JV_L2CAP_OPEN_EVT       16 /* open status of L2CAP connection */
+#define BTA_JV_L2CAP_CLOSE_EVT      17 /* L2CAP connection closed */
+#define BTA_JV_L2CAP_START_EVT      18 /* L2CAP server started */
+#define BTA_JV_L2CAP_CL_INIT_EVT    19 /* L2CAP client initiated a connection */
+#define BTA_JV_L2CAP_DATA_IND_EVT   20 /* L2CAP connection received data */
+#define BTA_JV_L2CAP_CONG_EVT       21 /* L2CAP connection congestion status changed */
+#define BTA_JV_L2CAP_READ_EVT       22 /* the result for BTA_JvL2capRead */
+#define BTA_JV_L2CAP_WRITE_EVT      24 /* the result for BTA_JvL2capWrite*/
+#define BTA_JV_L2CAP_WRITE_FIXED_EVT 25 /* the result for BTA_JvL2capWriteFixed */
+
+/* events received by tBTA_JV_RFCOMM_CBACK */
+#define BTA_JV_RFCOMM_OPEN_EVT      26 /* open status of RFCOMM Client connection */
+#define BTA_JV_RFCOMM_CLOSE_EVT     27 /* RFCOMM connection closed */
+#define BTA_JV_RFCOMM_START_EVT     28 /* RFCOMM server started */
+#define BTA_JV_RFCOMM_CL_INIT_EVT   29 /* RFCOMM client initiated a connection */
+#define BTA_JV_RFCOMM_DATA_IND_EVT  30 /* RFCOMM connection received data */
+#define BTA_JV_RFCOMM_CONG_EVT      31 /* RFCOMM connection congestion status changed */
+#define BTA_JV_RFCOMM_WRITE_EVT     33 /* the result for BTA_JvRfcommWrite*/
+#define BTA_JV_RFCOMM_SRV_OPEN_EVT  34 /* open status of Server RFCOMM connection */
+#define BTA_JV_MAX_EVT              35 /* max number of JV events */
+
+typedef UINT16 tBTA_JV_EVT;
+
+/* data associated with BTA_JV_SET_DISCOVER_EVT */
+typedef struct
+{
+    tBTA_JV_STATUS  status;     /* Whether the operation succeeded or failed. */
+    tBTA_JV_DISC    disc_mode;  /* The current discoverable mode */
+} tBTA_JV_SET_DISCOVER;
+
+/* data associated with BTA_JV_DISCOVERY_COMP_EVT_ */
+typedef struct
+{
+    tBTA_JV_STATUS  status;     /* Whether the operation succeeded or failed. */
+    int scn;                    /* channel # */
+} tBTA_JV_DISCOVERY_COMP;
+
+/* data associated with BTA_JV_CREATE_RECORD_EVT */
+typedef struct
+{
+   tBTA_JV_STATUS  status;     /* Whether the operation succeeded or failed. */
+} tBTA_JV_CREATE_RECORD;
+
+/* data associated with BTA_JV_L2CAP_OPEN_EVT */
+typedef struct
+{
+    tBTA_JV_STATUS  status;     /* Whether the operation succeeded or failed. */
+    UINT32          handle;     /* The connection handle */
+    BD_ADDR         rem_bda;    /* The peer address */
+    INT32           tx_mtu;     /* The transmit MTU */
+} tBTA_JV_L2CAP_OPEN;
+
+/* data associated with BTA_JV_L2CAP_OPEN_EVT for LE sockets */
+typedef struct
+{
+    tBTA_JV_STATUS  status;     /* Whether the operation succeeded or failed. */
+    UINT32          handle;     /* The connection handle */
+    BD_ADDR         rem_bda;    /* The peer address */
+    INT32           tx_mtu;     /* The transmit MTU */
+    void          **p_p_cback;  /* set them for new socket */
+    void          **p_user_data;/* set them for new socket */
+
+} tBTA_JV_L2CAP_LE_OPEN;
+
+
+/* data associated with BTA_JV_L2CAP_CLOSE_EVT */
+typedef struct
+{
+    tBTA_JV_STATUS  status;     /* Whether the operation succeeded or failed. */
+    UINT32          handle;     /* The connection handle */
+    BOOLEAN         async;      /* FALSE, if local initiates disconnect */
+} tBTA_JV_L2CAP_CLOSE;
+
+/* data associated with BTA_JV_L2CAP_START_EVT */
+typedef struct
+{
+    tBTA_JV_STATUS  status;     /* Whether the operation succeeded or failed. */
+    UINT32          handle;     /* The connection handle */
+    UINT8           sec_id;     /* security ID used by this server */
+} tBTA_JV_L2CAP_START;
+
+/* data associated with BTA_JV_L2CAP_CL_INIT_EVT */
+typedef struct
+{
+    tBTA_JV_STATUS  status;     /* Whether the operation succeeded or failed. */
+    UINT32          handle;     /* The connection handle */
+    UINT8           sec_id;     /* security ID used by this client */
+} tBTA_JV_L2CAP_CL_INIT;
+
+/* data associated with BTA_JV_L2CAP_CONG_EVT */
+typedef struct
+{
+    tBTA_JV_STATUS  status;     /* Whether the operation succeeded or failed. */
+    UINT32          handle;     /* The connection handle */
+    BOOLEAN         cong;       /* TRUE, congested. FALSE, uncongested */
+} tBTA_JV_L2CAP_CONG;
+
+/* data associated with BTA_JV_L2CAP_READ_EVT */
+typedef struct
+{
+    tBTA_JV_STATUS  status;     /* Whether the operation succeeded or failed. */
+    UINT32          handle;     /* The connection handle */
+    UINT32          req_id;     /* The req_id in the associated BTA_JvL2capRead() */
+    UINT8           *p_data;    /* This points the same location as the p_data
+                                 * parameter in BTA_JvL2capRead () */
+    UINT16          len;        /* The length of the data read. */
+} tBTA_JV_L2CAP_READ;
+
+/* data associated with BTA_JV_L2CAP_WRITE_EVT */
+typedef struct
+{
+    tBTA_JV_STATUS  status;     /* Whether the operation succeeded or failed. */
+    UINT32          handle;     /* The connection handle */
+    UINT32          req_id;     /* The req_id in the associated BTA_JvL2capWrite() */
+    UINT16          len;        /* The length of the data written. */
+    BOOLEAN         cong;       /* congestion status */
+} tBTA_JV_L2CAP_WRITE;
+
+
+/* data associated with BTA_JV_L2CAP_WRITE_FIXED_EVT */
+typedef struct
+{
+    tBTA_JV_STATUS  status;     /* Whether the operation succeeded or failed. */
+    UINT16          channel;    /* The connection channel */
+    BD_ADDR         addr;       /* The peer address */
+    UINT32          req_id;     /* The req_id in the associated BTA_JvL2capWrite() */
+    UINT16          len;        /* The length of the data written. */
+    BOOLEAN         cong;       /* congestion status */
+} tBTA_JV_L2CAP_WRITE_FIXED;
+
+/* data associated with BTA_JV_RFCOMM_OPEN_EVT */
+typedef struct
+{
+    tBTA_JV_STATUS  status;     /* Whether the operation succeeded or failed. */
+    UINT32          handle;     /* The connection handle */
+    BD_ADDR         rem_bda;    /* The peer address */
+} tBTA_JV_RFCOMM_OPEN;
+/* data associated with BTA_JV_RFCOMM_SRV_OPEN_EVT */
+typedef struct
+{
+    tBTA_JV_STATUS  status;             /* Whether the operation succeeded or failed. */
+    UINT32          handle;             /* The connection handle */
+    UINT32          new_listen_handle;  /* The new listen handle */
+    BD_ADDR         rem_bda;            /* The peer address */
+} tBTA_JV_RFCOMM_SRV_OPEN;
+
+
+/* data associated with BTA_JV_RFCOMM_CLOSE_EVT */
+typedef struct
+{
+    tBTA_JV_STATUS  status;      /* Whether the operation succeeded or failed. */
+    UINT32          port_status; /* PORT status */
+    UINT32          handle;      /* The connection handle */
+    BOOLEAN         async;       /* FALSE, if local initiates disconnect */
+} tBTA_JV_RFCOMM_CLOSE;
+
+/* data associated with BTA_JV_RFCOMM_START_EVT */
+typedef struct
+{
+    tBTA_JV_STATUS  status;     /* Whether the operation succeeded or failed. */
+    UINT32          handle;     /* The connection handle */
+    UINT8           sec_id;     /* security ID used by this server */
+    BOOLEAN         use_co;     /* TRUE to use co_rfc_data */
+} tBTA_JV_RFCOMM_START;
+
+/* data associated with BTA_JV_RFCOMM_CL_INIT_EVT */
+typedef struct
+{
+    tBTA_JV_STATUS  status;     /* Whether the operation succeeded or failed. */
+    UINT32          handle;     /* The connection handle */
+    UINT8           sec_id;     /* security ID used by this client */
+    BOOLEAN         use_co;     /* TRUE to use co_rfc_data */
+} tBTA_JV_RFCOMM_CL_INIT;
+/*data associated with BTA_JV_L2CAP_DATA_IND_EVT & BTA_JV_RFCOMM_DATA_IND_EVT */
+typedef struct
+{
+    UINT32          handle;     /* The connection handle */
+} tBTA_JV_DATA_IND;
+
+/*data associated with BTA_JV_L2CAP_DATA_IND_EVT if used for LE */
+typedef struct
+{
+    UINT32          handle;     /* The connection handle */
+    BT_HDR         *p_buf;      /* The incoming data */
+} tBTA_JV_LE_DATA_IND;
+
+
+/* data associated with BTA_JV_RFCOMM_CONG_EVT */
+typedef struct
+{
+    tBTA_JV_STATUS  status;     /* Whether the operation succeeded or failed. */
+    UINT32          handle;     /* The connection handle */
+    BOOLEAN         cong;       /* TRUE, congested. FALSE, uncongested */
+} tBTA_JV_RFCOMM_CONG;
+
+/* data associated with BTA_JV_RFCOMM_WRITE_EVT */
+typedef struct
+{
+    tBTA_JV_STATUS  status;     /* Whether the operation succeeded or failed. */
+    UINT32          handle;     /* The connection handle */
+    UINT32          req_id;     /* The req_id in the associated BTA_JvRfcommWrite() */
+    int             len;        /* The length of the data written. */
+    BOOLEAN         cong;       /* congestion status */
+} tBTA_JV_RFCOMM_WRITE;
+
+/* data associated with BTA_JV_API_SET_PM_PROFILE_EVT */
+typedef struct
+{
+    tBTA_JV_STATUS  status;     /* Status of the operation */
+    UINT32          handle;     /* Connection handle */
+    tBTA_JV_PM_ID   app_id;      /* JV app ID */
+} tBTA_JV_SET_PM_PROFILE;
+
+/* data associated with BTA_JV_API_NOTIFY_PM_STATE_CHANGE_EVT */
+typedef struct
+{
+    UINT32          handle;     /* Connection handle */
+    tBTA_JV_CONN_STATE  state;  /* JV connection stata */
+} tBTA_JV_NOTIFY_PM_STATE_CHANGE;
+
+
+/* union of data associated with JV callback */
+typedef union
+{
+    tBTA_JV_STATUS          status;         /* BTA_JV_ENABLE_EVT */
+    tBTA_JV_DISCOVERY_COMP  disc_comp;      /* BTA_JV_DISCOVERY_COMP_EVT */
+    tBTA_JV_SET_DISCOVER    set_discover;   /* BTA_JV_SET_DISCOVER_EVT */
+    UINT8                   scn;            /* BTA_JV_GET_SCN_EVT */
+    UINT16                  psm;            /* BTA_JV_GET_PSM_EVT */
+    tBTA_JV_CREATE_RECORD   create_rec;     /* BTA_JV_CREATE_RECORD_EVT */
+    tBTA_JV_L2CAP_OPEN      l2c_open;       /* BTA_JV_L2CAP_OPEN_EVT */
+    tBTA_JV_L2CAP_CLOSE     l2c_close;      /* BTA_JV_L2CAP_CLOSE_EVT */
+    tBTA_JV_L2CAP_START     l2c_start;      /* BTA_JV_L2CAP_START_EVT */
+    tBTA_JV_L2CAP_CL_INIT   l2c_cl_init;    /* BTA_JV_L2CAP_CL_INIT_EVT */
+    tBTA_JV_L2CAP_CONG      l2c_cong;       /* BTA_JV_L2CAP_CONG_EVT */
+    tBTA_JV_L2CAP_READ      l2c_read;       /* BTA_JV_L2CAP_READ_EVT */
+    tBTA_JV_L2CAP_WRITE     l2c_write;      /* BTA_JV_L2CAP_WRITE_EVT */
+    tBTA_JV_RFCOMM_OPEN     rfc_open;       /* BTA_JV_RFCOMM_OPEN_EVT */
+    tBTA_JV_RFCOMM_SRV_OPEN rfc_srv_open;   /* BTA_JV_RFCOMM_SRV_OPEN_EVT */
+    tBTA_JV_RFCOMM_CLOSE    rfc_close;      /* BTA_JV_RFCOMM_CLOSE_EVT */
+    tBTA_JV_RFCOMM_START    rfc_start;      /* BTA_JV_RFCOMM_START_EVT */
+    tBTA_JV_RFCOMM_CL_INIT  rfc_cl_init;    /* BTA_JV_RFCOMM_CL_INIT_EVT */
+    tBTA_JV_RFCOMM_CONG     rfc_cong;       /* BTA_JV_RFCOMM_CONG_EVT */
+    tBTA_JV_RFCOMM_WRITE    rfc_write;      /* BTA_JV_RFCOMM_WRITE_EVT */
+    tBTA_JV_DATA_IND        data_ind;       /* BTA_JV_L2CAP_DATA_IND_EVT
+                                               BTA_JV_RFCOMM_DATA_IND_EVT */
+    tBTA_JV_LE_DATA_IND      le_data_ind;   /* BTA_JV_L2CAP_LE_DATA_IND_EVT */
+    tBTA_JV_L2CAP_LE_OPEN      l2c_le_open;       /* BTA_JV_L2CAP_OPEN_EVT */
+    tBTA_JV_L2CAP_WRITE_FIXED  l2c_write_fixed;      /* BTA_JV_L2CAP_WRITE_FIXED_EVT */
+} tBTA_JV;
+
+/* JAVA DM Interface callback */
+typedef void (tBTA_JV_DM_CBACK)(tBTA_JV_EVT event, tBTA_JV *p_data, void * user_data);
+
+/* JAVA RFCOMM interface callback */
+typedef void* (tBTA_JV_RFCOMM_CBACK)(tBTA_JV_EVT event, tBTA_JV *p_data, void *user_data);
+
+/* JAVA L2CAP interface callback */
+typedef void (tBTA_JV_L2CAP_CBACK)(tBTA_JV_EVT event, tBTA_JV *p_data, void *user_Data);
+
+/* JV configuration structure */
+typedef struct
+{
+    UINT16  sdp_raw_size;           /* The size of p_sdp_raw_data */
+    UINT16  sdp_db_size;            /* The size of p_sdp_db */
+    UINT8   *p_sdp_raw_data;        /* The data buffer to keep raw data */
+    tSDP_DISCOVERY_DB   *p_sdp_db;  /* The data buffer to keep SDP database */
+} tBTA_JV_CFG;
+
+/*******************************************************************************
+**
+** Function         BTA_JvEnable
+**
+** Description      Enable the Java I/F service. When the enable
+**                  operation is complete the callback function will be
+**                  called with a BTA_JV_ENABLE_EVT. This function must
+**                  be called before other functions in the JV API are
+**                  called.
+**
+** Returns          BTA_JV_SUCCESS if successful.
+**                  BTA_JV_FAIL if internal failure.
+**
+*******************************************************************************/
+tBTA_JV_STATUS BTA_JvEnable(tBTA_JV_DM_CBACK *p_cback);
+
+/*******************************************************************************
+**
+** Function         BTA_JvDisable
+**
+** Description      Disable the Java I/F
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_JvDisable(void);
+
+/*******************************************************************************
+**
+** Function         BTA_JvIsEncrypted
+**
+** Description      This function checks if the link to peer device is encrypted
+**
+** Returns          TRUE if encrypted.
+**                  FALSE if not.
+**
+*******************************************************************************/
+BOOLEAN BTA_JvIsEncrypted(BD_ADDR bd_addr);
+
+/*******************************************************************************
+**
+** Function         BTA_JvGetChannelId
+**
+** Description      This function reserves a SCN/PSM for applications running
+**                  over RFCOMM or L2CAP. It is primarily called by
+**                  server profiles/applications to register their SCN/PSM into the
+**                  SDP database. The SCN is reported by the tBTA_JV_DM_CBACK
+**                  callback with a BTA_JV_GET_SCN_EVT.
+**                  If the SCN/PSM reported is 0, that means all SCN resources are
+**                  exhausted.
+**                  The channel parameter can be used to request a specific
+**                  channel. If the request on the specific channel fails, the
+**                  SCN/PSM returned in the EVT will be 0 - no attempt to request
+**                  a new channel will be made. set channel to <= 0 to automatically
+**                  assign an channel ID.
+**
+** Returns          BTA_JV_SUCCESS, if the request is being processed.
+**                  BTA_JV_FAILURE, otherwise.
+**
+*******************************************************************************/
+tBTA_JV_STATUS BTA_JvGetChannelId(int conn_type, void* user_data,
+                                                 INT32 channel);
+
+/*******************************************************************************
+**
+** Function         BTA_JvFreeChannel
+**
+** Description      This function frees a SCN/PSM that was used
+**                  by an application running over RFCOMM or L2CAP.
+**
+** Returns          BTA_JV_SUCCESS, if the request is being processed.
+**                  BTA_JV_FAILURE, otherwise.
+**
+*******************************************************************************/
+tBTA_JV_STATUS BTA_JvFreeChannel(UINT16 channel, int conn_type);
+
+/*******************************************************************************
+**
+** Function         BTA_JvStartDiscovery
+**
+** Description      This function performs service discovery for the services
+**                  provided by the given peer device. When the operation is
+**                  complete the tBTA_JV_DM_CBACK callback function will be
+**                  called with a BTA_JV_DISCOVERY_COMP_EVT.
+**
+** Returns          BTA_JV_SUCCESS, if the request is being processed.
+**                  BTA_JV_FAILURE, otherwise.
+**
+*******************************************************************************/
+tBTA_JV_STATUS BTA_JvStartDiscovery(BD_ADDR bd_addr, UINT16 num_uuid,
+                                           tSDP_UUID *p_uuid_list, void* user_data);
+
+/*******************************************************************************
+**
+** Function         BTA_JvCreateRecordByUser
+**
+** Description      Create a service record in the local SDP database by user in
+**                  tBTA_JV_DM_CBACK callback with a BTA_JV_CREATE_RECORD_EVT.
+**
+** Returns          BTA_JV_SUCCESS, if the request is being processed.
+**                  BTA_JV_FAILURE, otherwise.
+**
+*******************************************************************************/
+tBTA_JV_STATUS BTA_JvCreateRecordByUser(void* user_data);
+
+/*******************************************************************************
+**
+** Function         BTA_JvDeleteRecord
+**
+** Description      Delete a service record in the local SDP database.
+**
+** Returns          BTA_JV_SUCCESS, if the request is being processed.
+**                  BTA_JV_FAILURE, otherwise.
+**
+*******************************************************************************/
+tBTA_JV_STATUS BTA_JvDeleteRecord(UINT32 handle);
+
+/*******************************************************************************
+**
+** Function         BTA_JvL2capConnectLE
+**
+** Description      Initiate a connection as an LE L2CAP client to the given BD
+**                  Address.
+**                  When the connection is initiated or failed to initiate,
+**                  tBTA_JV_L2CAP_CBACK is called with BTA_JV_L2CAP_CL_INIT_EVT
+**                  When the connection is established or failed,
+**                  tBTA_JV_L2CAP_CBACK is called with BTA_JV_L2CAP_OPEN_EVT
+**
+** Returns          BTA_JV_SUCCESS, if the request is being processed.
+**                  BTA_JV_FAILURE, otherwise.
+**
+*******************************************************************************/
+tBTA_JV_STATUS BTA_JvL2capConnectLE(tBTA_SEC sec_mask, tBTA_JV_ROLE role,
+                           const tL2CAP_ERTM_INFO *ertm_info, UINT16 remote_chan,
+                           UINT16 rx_mtu, tL2CAP_CFG_INFO *cfg,
+                           BD_ADDR peer_bd_addr, tBTA_JV_L2CAP_CBACK *p_cback, void *user_data);
+
+/*******************************************************************************
+**
+** Function         BTA_JvL2capConnect
+**
+** Description      Initiate a connection as a L2CAP client to the given BD
+**                  Address.
+**                  When the connection is initiated or failed to initiate,
+**                  tBTA_JV_L2CAP_CBACK is called with BTA_JV_L2CAP_CL_INIT_EVT
+**                  When the connection is established or failed,
+**                  tBTA_JV_L2CAP_CBACK is called with BTA_JV_L2CAP_OPEN_EVT
+**
+** Returns          BTA_JV_SUCCESS, if the request is being processed.
+**                  BTA_JV_FAILURE, otherwise.
+**
+*******************************************************************************/
+tBTA_JV_STATUS BTA_JvL2capConnect(int conn_type, tBTA_SEC sec_mask, tBTA_JV_ROLE role,
+                           const tL2CAP_ERTM_INFO *ertm_info, UINT16 remote_psm,
+                           UINT16 rx_mtu, tL2CAP_CFG_INFO *cfg,
+                           BD_ADDR peer_bd_addr, tBTA_JV_L2CAP_CBACK *p_cback, void *user_data);
+
+/*******************************************************************************
+**
+** Function         BTA_JvL2capClose
+**
+** Description      This function closes an L2CAP client connection
+**
+** Returns          BTA_JV_SUCCESS, if the request is being processed.
+**                  BTA_JV_FAILURE, otherwise.
+**
+*******************************************************************************/
+tBTA_JV_STATUS BTA_JvL2capClose(UINT32 handle);
+
+/*******************************************************************************
+**
+** Function         BTA_JvL2capCloseLE
+**
+** Description      This function closes an L2CAP client connection for Fixed Channels
+**                  Function is idempotent and no callbacks are called!
+**
+** Returns          BTA_JV_SUCCESS, if the request is being processed.
+**                  BTA_JV_FAILURE, otherwise.
+**
+*******************************************************************************/
+tBTA_JV_STATUS BTA_JvL2capCloseLE(UINT32 handle);
+
+/*******************************************************************************
+**
+** Function         BTA_JvL2capStartServer
+**
+** Description      This function starts an L2CAP server and listens for an L2CAP
+**                  connection from a remote Bluetooth device.  When the server
+**                  is started successfully, tBTA_JV_L2CAP_CBACK is called with
+**                  BTA_JV_L2CAP_START_EVT.  When the connection is established,
+**                  tBTA_JV_L2CAP_CBACK is called with BTA_JV_L2CAP_OPEN_EVT.
+**
+** Returns          BTA_JV_SUCCESS, if the request is being processed.
+**                  BTA_JV_FAILURE, otherwise.
+**
+*******************************************************************************/
+tBTA_JV_STATUS BTA_JvL2capStartServer(int conn_type, tBTA_SEC sec_mask, tBTA_JV_ROLE role,
+                           const tL2CAP_ERTM_INFO *ertm_info,
+                           UINT16 local_psm, UINT16 rx_mtu, tL2CAP_CFG_INFO *cfg,
+                           tBTA_JV_L2CAP_CBACK *p_cback, void *user_data);
+
+/*******************************************************************************
+**
+** Function         BTA_JvL2capStartServerLE
+**
+** Description      This function starts an LE L2CAP server and listens for an L2CAP
+**                  connection from a remote Bluetooth device on a fixed channel
+**                  over an LE link.  When the server
+**                  is started successfully, tBTA_JV_L2CAP_CBACK is called with
+**                  BTA_JV_L2CAP_START_EVT.  When the connection is established,
+**                  tBTA_JV_L2CAP_CBACK is called with BTA_JV_L2CAP_OPEN_EVT.
+**
+** Returns          BTA_JV_SUCCESS, if the request is being processed.
+**                  BTA_JV_FAILURE, otherwise.
+**
+*******************************************************************************/
+tBTA_JV_STATUS BTA_JvL2capStartServerLE(tBTA_SEC sec_mask, tBTA_JV_ROLE role,
+                           const tL2CAP_ERTM_INFO *ertm_info,
+                           UINT16 local_chan, UINT16 rx_mtu, tL2CAP_CFG_INFO *cfg,
+                           tBTA_JV_L2CAP_CBACK *p_cback, void *user_data);
+
+/*******************************************************************************
+**
+** Function         BTA_JvL2capStopServerLE
+**
+** Description      This function stops the LE L2CAP server. If the server has an
+**                  active connection, it would be closed.
+**
+** Returns          BTA_JV_SUCCESS, if the request is being processed.
+**                  BTA_JV_FAILURE, otherwise.
+**
+*******************************************************************************/
+tBTA_JV_STATUS BTA_JvL2capStopServerLE(UINT16 local_chan, void *user_data);
+
+/*******************************************************************************
+**
+** Function         BTA_JvL2capStopServerLE
+**
+** Description      This function stops the LE L2CAP server. If the server has an
+**                  active connection, it would be closed.
+**
+** Returns          BTA_JV_SUCCESS, if the request is being processed.
+**                  BTA_JV_FAILURE, otherwise.
+**
+*******************************************************************************/
+tBTA_JV_STATUS BTA_JvL2capStopServer(UINT16 local_psm, void *user_data);
+
+/*******************************************************************************
+**
+** Function         BTA_JvL2capRead
+**
+** Description      This function reads data from an L2CAP connection
+**                  When the operation is complete, tBTA_JV_L2CAP_CBACK is
+**                  called with BTA_JV_L2CAP_READ_EVT.
+**
+** Returns          BTA_JV_SUCCESS, if the request is being processed.
+**                  BTA_JV_FAILURE, otherwise.
+**
+*******************************************************************************/
+tBTA_JV_STATUS BTA_JvL2capRead(UINT32 handle, UINT32 req_id,
+                                              UINT8 *p_data, UINT16 len);
+
+/*******************************************************************************
+**
+** Function         BTA_JvL2capReady
+**
+** Description      This function determined if there is data to read from
+**                  an L2CAP connection
+**
+** Returns          BTA_JV_SUCCESS, if data queue size is in *p_data_size.
+**                  BTA_JV_FAILURE, if error.
+**
+*******************************************************************************/
+tBTA_JV_STATUS BTA_JvL2capReady(UINT32 handle, UINT32 *p_data_size);
+
+/*******************************************************************************
+**
+** Function         BTA_JvL2capWrite
+**
+** Description      This function writes data to an L2CAP connection
+**                  When the operation is complete, tBTA_JV_L2CAP_CBACK is
+**                  called with BTA_JV_L2CAP_WRITE_EVT. Works for
+**                  PSM-based connections
+**
+** Returns          BTA_JV_SUCCESS, if the request is being processed.
+**                  BTA_JV_FAILURE, otherwise.
+**
+*******************************************************************************/
+tBTA_JV_STATUS BTA_JvL2capWrite(UINT32 handle, UINT32 req_id,
+                                               UINT8 *p_data, UINT16 len, void *user_data);
+
+
+/*******************************************************************************
+**
+** Function         BTA_JvL2capWriteFixed
+**
+** Description      This function writes data to an L2CAP connection
+**                  When the operation is complete, tBTA_JV_L2CAP_CBACK is
+**                  called with BTA_JV_L2CAP_WRITE_FIXED_EVT. Works for
+**                  fixed-channel connections
+**
+** Returns          BTA_JV_SUCCESS, if the request is being processed.
+**                  BTA_JV_FAILURE, otherwise.
+**
+*******************************************************************************/
+tBTA_JV_STATUS BTA_JvL2capWriteFixed(UINT16 channel, BD_ADDR *addr, UINT32 req_id,
+                                               tBTA_JV_L2CAP_CBACK *p_cback,
+                                               UINT8 *p_data, UINT16 len, void *user_data);
+
+/*******************************************************************************
+**
+** Function         BTA_JvRfcommConnect
+**
+** Description      This function makes an RFCOMM conection to a remote BD
+**                  Address.
+**                  When the connection is initiated or failed to initiate,
+**                  tBTA_JV_RFCOMM_CBACK is called with BTA_JV_RFCOMM_CL_INIT_EVT
+**                  When the connection is established or failed,
+**                  tBTA_JV_RFCOMM_CBACK is called with BTA_JV_RFCOMM_OPEN_EVT
+**
+** Returns          BTA_JV_SUCCESS, if the request is being processed.
+**                  BTA_JV_FAILURE, otherwise.
+**
+*******************************************************************************/
+tBTA_JV_STATUS BTA_JvRfcommConnect(tBTA_SEC sec_mask,
+                                          tBTA_JV_ROLE role, UINT8 remote_scn, BD_ADDR peer_bd_addr,
+                                          tBTA_JV_RFCOMM_CBACK *p_cback, void *user_data);
+
+/*******************************************************************************
+**
+** Function         BTA_JvRfcommClose
+**
+** Description      This function closes an RFCOMM connection
+**
+** Returns          BTA_JV_SUCCESS, if the request is being processed.
+**                  BTA_JV_FAILURE, otherwise.
+**
+*******************************************************************************/
+tBTA_JV_STATUS BTA_JvRfcommClose(UINT32 handle, void* user_data);
+
+/*******************************************************************************
+**
+** Function         BTA_JvRfcommStartServer
+**
+** Description      This function starts listening for an RFCOMM connection
+**                  request from a remote Bluetooth device.  When the server is
+**                  started successfully, tBTA_JV_RFCOMM_CBACK is called
+**                  with BTA_JV_RFCOMM_START_EVT.
+**                  When the connection is established, tBTA_JV_RFCOMM_CBACK
+**                  is called with BTA_JV_RFCOMM_OPEN_EVT.
+**
+** Returns          BTA_JV_SUCCESS, if the request is being processed.
+**                  BTA_JV_FAILURE, otherwise.
+**
+*******************************************************************************/
+tBTA_JV_STATUS BTA_JvRfcommStartServer(tBTA_SEC sec_mask,
+                                              tBTA_JV_ROLE role, UINT8 local_scn, UINT8 max_session,
+                                              tBTA_JV_RFCOMM_CBACK *p_cback, void *user_data);
+
+/*******************************************************************************
+**
+** Function         BTA_JvRfcommStopServer
+**
+** Description      This function stops the RFCOMM server. If the server has an
+**                  active connection, it would be closed.
+**
+** Returns          BTA_JV_SUCCESS, if the request is being processed.
+**                  BTA_JV_FAILURE, otherwise.
+**
+*******************************************************************************/
+tBTA_JV_STATUS BTA_JvRfcommStopServer(UINT32 handle, void* user_data);
+
+/*******************************************************************************
+**
+** Function         BTA_JvRfcommWrite
+**
+** Description      This function writes data to an RFCOMM connection
+**                  When the operation is complete, tBTA_JV_RFCOMM_CBACK is
+**                  called with BTA_JV_RFCOMM_WRITE_EVT.
+**
+** Returns          BTA_JV_SUCCESS, if the request is being processed.
+**                  BTA_JV_FAILURE, otherwise.
+**
+*******************************************************************************/
+tBTA_JV_STATUS BTA_JvRfcommWrite(UINT32 handle, UINT32 req_id);
+
+/*******************************************************************************
+ **
+ ** Function    BTA_JVSetPmProfile
+ **
+ ** Description This function set or free power mode profile for different JV application
+ **
+ ** Parameters:  handle,  JV handle from RFCOMM or L2CAP
+ **              app_id:  app specific pm ID, can be BTA_JV_PM_ALL, see bta_dm_cfg.c for details
+ **              BTA_JV_PM_ID_CLEAR: removes pm management on the handle. init_st is ignored and
+ **              BTA_JV_CONN_CLOSE is called implicitely
+ **              init_st:  state after calling this API. typically it should be BTA_JV_CONN_OPEN
+ **
+ ** Returns      BTA_JV_SUCCESS, if the request is being processed.
+ **              BTA_JV_FAILURE, otherwise.
+ **
+ ** NOTE:        BTA_JV_PM_ID_CLEAR: In general no need to be called as jv pm calls automatically
+ **              BTA_JV_CONN_CLOSE to remove in case of connection close!
+ **
+ *******************************************************************************/
+tBTA_JV_STATUS BTA_JvSetPmProfile(UINT32 handle, tBTA_JV_PM_ID app_id,
+                                         tBTA_JV_CONN_STATE init_st);
+
+/*******************************************************************************
+**
+** Function         BTA_JvRfcommGetPortHdl
+**
+** Description    This function fetches the rfcomm port handle
+**
+** Returns          BTA_JV_SUCCESS, if the request is being processed.
+**                  BTA_JV_FAILURE, otherwise.
+**
+*******************************************************************************/
+UINT16 BTA_JvRfcommGetPortHdl(UINT32 handle);
+
+#endif /* BTA_JV_API_H */
diff --git a/rtkbt/code/bt/bta/include/bta_jv_co.h b/rtkbt/code/bt/bta/include/bta_jv_co.h
new file mode 100755
index 0000000..1984248
--- /dev/null
+++ b/rtkbt/code/bt/bta/include/bta_jv_co.h
@@ -0,0 +1,53 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2007-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the interface file for java interface call-out functions.
+ *
+ ******************************************************************************/
+#ifndef BTA_JV_CO_H
+#define BTA_JV_CO_H
+
+#include "bta_jv_api.h"
+
+/*****************************************************************************
+**  Function Declarations
+*****************************************************************************/
+
+
+/*******************************************************************************
+**
+** Function         bta_jv_co_rfc_data
+**
+** Description      This function is called by JV to send data to the java glue
+**                  code when the RX data path is configured to use a call-out
+**
+** Returns          void
+**
+*******************************************************************************/
+
+extern int bta_co_rfc_data_incoming(void *user_data, BT_HDR *p_buf);
+extern int bta_co_rfc_data_outgoing_size(void *user_data, int *size);
+extern int bta_co_rfc_data_outgoing(void *user_data, UINT8* buf, UINT16 size);
+
+extern int bta_co_l2cap_data_incoming(void *user_data, BT_HDR *p_buf);
+extern int bta_co_l2cap_data_outgoing_size(void *user_data, int *size);
+extern int bta_co_l2cap_data_outgoing(void *user_data, UINT8* buf, UINT16 size);
+
+#endif /* BTA_DG_CO_H */
diff --git a/rtkbt/code/bt/bta/include/bta_mce_api.h b/rtkbt/code/bt/bta/include/bta_mce_api.h
new file mode 100755
index 0000000..c978115
--- /dev/null
+++ b/rtkbt/code/bt/bta/include/bta_mce_api.h
@@ -0,0 +1,131 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 The Android Open Source Project
+ *  Copyright (C) 2006-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the public interface file the BTA MCE I/F
+ *
+ ******************************************************************************/
+#ifndef BTA_MCE_API_H
+#define BTA_MCE_API_H
+
+#include "bt_target.h"
+#include "bt_types.h"
+#include "bta_api.h"
+#include "btm_api.h"
+
+/*****************************************************************************
+**  Constants and data types
+*****************************************************************************/
+/* status values */
+#define BTA_MCE_SUCCESS             0            /* Successful operation. */
+#define BTA_MCE_FAILURE             1            /* Generic failure. */
+#define BTA_MCE_BUSY                2            /* Temporarily can not handle this request. */
+
+typedef UINT8 tBTA_MCE_STATUS;
+
+/* MCE I/F callback events */
+/* events received by tBTA_MCE_DM_CBACK */
+#define BTA_MCE_ENABLE_EVT               0  /* MCE enabled */
+#define BTA_MCE_MAS_DISCOVERY_COMP_EVT   1  /* SDP MAS discovery complete */
+#define BTA_MCE_MAX_EVT                  2  /* max number of MCE events */
+
+#define BTA_MCE_MAX_MAS_INSTANCES 12
+
+typedef UINT16 tBTA_MCE_EVT;
+
+typedef struct
+{
+    UINT8   scn;
+    char    *p_srv_name;
+    UINT16  srv_name_len;
+    UINT8   instance_id;
+    UINT8   msg_type;
+} tBTA_MCE_MAS_INFO;
+
+/* data associated with BTA_MCE_MAS_DISCOVERY_COMP_EVT */
+typedef struct
+{
+    tBTA_MCE_STATUS    status;
+    BD_ADDR            remote_addr;
+    int                num_mas;
+    tBTA_MCE_MAS_INFO  mas[BTA_MCE_MAX_MAS_INSTANCES];
+} tBTA_MCE_MAS_DISCOVERY_COMP;
+
+/* union of data associated with MCE callback */
+typedef union
+{
+    tBTA_MCE_STATUS              status;         /* BTA_MCE_ENABLE_EVT */
+    tBTA_MCE_MAS_DISCOVERY_COMP  mas_disc_comp;  /* BTA_MCE_MAS_DISCOVERY_COMP_EVT */
+} tBTA_MCE;
+
+/* MCE DM Interface callback */
+typedef void (tBTA_MCE_DM_CBACK)(tBTA_MCE_EVT event, tBTA_MCE *p_data, void * user_data);
+
+/* MCE configuration structure */
+typedef struct
+{
+    UINT16  sdp_db_size;            /* The size of p_sdp_db */
+    tSDP_DISCOVERY_DB   *p_sdp_db;  /* The data buffer to keep SDP database */
+} tBTA_MCE_CFG;
+
+/*****************************************************************************
+**  External Function Declarations
+*****************************************************************************/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+/*******************************************************************************
+**
+** Function         BTA_MceEnable
+**
+** Description      Enable the MCE I/F service. When the enable
+**                  operation is complete the callback function will be
+**                  called with a BTA_MCE_ENABLE_EVT. This function must
+**                  be called before other functions in the MCE API are
+**                  called.
+**
+** Returns          BTA_MCE_SUCCESS if successful.
+**                  BTA_MCE_FAIL if internal failure.
+**
+*******************************************************************************/
+extern tBTA_MCE_STATUS BTA_MceEnable(tBTA_MCE_DM_CBACK *p_cback);
+
+/*******************************************************************************
+**
+** Function         BTA_MceGetRemoteMasInstances
+**
+** Description      This function performs service discovery for the MAS service
+**                  by the given peer device. When the operation is completed
+**                  the tBTA_MCE_DM_CBACK callback function will be  called with
+**                  a BTA_MCE_MAS_DISCOVERY_COMP_EVT.
+**
+** Returns          BTA_MCE_SUCCESS, if the request is being processed.
+**                  BTA_MCE_FAILURE, otherwise.
+**
+*******************************************************************************/
+extern tBTA_MCE_STATUS BTA_MceGetRemoteMasInstances(BD_ADDR bd_addr);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* BTA_MCE_API_H */
diff --git a/rtkbt/code/bt/bta/include/bta_op_api.h b/rtkbt/code/bt/bta/include/bta_op_api.h
new file mode 100755
index 0000000..c26ea35
--- /dev/null
+++ b/rtkbt/code/bt/bta/include/bta_op_api.h
@@ -0,0 +1,67 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the public interface file for the object push (OP) client and
+ *  server subsystem of BTA, Broadcom's Bluetooth application layer for
+ *  mobile phones.
+ *
+ ******************************************************************************/
+#ifndef BTA_OP_API_H
+#define BTA_OP_API_H
+
+#include "bta_api.h"
+
+/*****************************************************************************
+**  Constants and data types
+*****************************************************************************/
+/* Extra Debug Code */
+#ifndef BTA_OPS_DEBUG
+#define BTA_OPS_DEBUG           FALSE
+#endif
+
+#ifndef BTA_OPC_DEBUG
+#define BTA_OPC_DEBUG           FALSE
+#endif
+
+
+/* Object format */
+#define BTA_OP_VCARD21_FMT          1       /* vCard 2.1 */
+#define BTA_OP_VCARD30_FMT          2       /* vCard 3.0 */
+#define BTA_OP_VCAL_FMT             3       /* vCal 1.0 */
+#define BTA_OP_ICAL_FMT             4       /* iCal 2.0 */
+#define BTA_OP_VNOTE_FMT            5       /* vNote */
+#define BTA_OP_VMSG_FMT             6       /* vMessage */
+#define BTA_OP_OTHER_FMT            0xFF    /* other format */
+
+typedef UINT8 tBTA_OP_FMT;
+
+/* Object format mask */
+#define BTA_OP_VCARD21_MASK         0x01    /* vCard 2.1 */
+#define BTA_OP_VCARD30_MASK         0x02    /* vCard 3.0 */
+#define BTA_OP_VCAL_MASK            0x04    /* vCal 1.0 */
+#define BTA_OP_ICAL_MASK            0x08    /* iCal 2.0 */
+#define BTA_OP_VNOTE_MASK           0x10    /* vNote */
+#define BTA_OP_VMSG_MASK            0x20    /* vMessage */
+#define BTA_OP_ANY_MASK             0x40    /* Any type of object. */
+
+typedef UINT8 tBTA_OP_FMT_MASK;
+
+#endif /* BTA_OP_API_H */
+
diff --git a/rtkbt/code/bt/bta/include/bta_pan_api.h b/rtkbt/code/bt/bta/include/bta_pan_api.h
new file mode 100755
index 0000000..a6fd9aa
--- /dev/null
+++ b/rtkbt/code/bt/bta/include/bta_pan_api.h
@@ -0,0 +1,200 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2004-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the public interface file for the Personal Area Networking (PAN)
+ *  subsystem of BTA, Broadcom's Bluetooth application layer for mobile
+ *  phones.
+ *
+ ******************************************************************************/
+#ifndef BTA_PAN_API_H
+#define BTA_PAN_API_H
+
+#include "bta_api.h"
+#include "pan_api.h"
+
+/*****************************************************************************
+**  Constants and data types
+*****************************************************************************/
+#define BTA_PAN_SUCCESS          0
+#define BTA_PAN_FAIL             1
+
+typedef UINT8 tBTA_PAN_STATUS;
+
+
+/* PAN Callback events */
+#define BTA_PAN_ENABLE_EVT       0       /* PAN service is enabled. */
+#define BTA_PAN_SET_ROLE_EVT     1       /* PAN roles registered */
+#define BTA_PAN_OPENING_EVT      2       /* Connection is being opened. */
+#define BTA_PAN_OPEN_EVT         3       /* Connection has been opened. */
+#define BTA_PAN_CLOSE_EVT        4       /* Connection has been closed. */
+
+typedef UINT8 tBTA_PAN_EVT;
+
+
+/* pan roles */
+#define BTA_PAN_ROLE_PANU        PAN_ROLE_CLIENT
+#define BTA_PAN_ROLE_GN          PAN_ROLE_GN_SERVER
+#define BTA_PAN_ROLE_NAP         PAN_ROLE_NAP_SERVER
+
+
+typedef UINT8   tBTA_PAN_ROLE;
+
+/*  information regarding PAN roles */
+typedef struct
+{
+    char *p_srv_name;  /* service name for the PAN role */
+    UINT8 app_id;      /* application id */
+    tBTA_SEC sec_mask; /* security setting for the role */
+
+} tBTA_PAN_ROLE_INFO;
+
+
+/* Event associated with BTA_PAN_SET_ROLE_EVT */
+typedef struct
+{
+    tBTA_PAN_STATUS status;     /* status of set role event */
+    tBTA_PAN_ROLE   role;       /* PAN roles successfully registered */
+} tBTA_PAN_SET_ROLE;
+
+/* Event associated with BTA_PAN_OPENING_EVT */
+typedef struct
+{
+    BD_ADDR         bd_addr;    /* BD address of peer device. */
+    UINT16          handle;     /* Handle associated with this connection. */
+
+} tBTA_PAN_OPENING;
+
+
+/* Event associated with BTA_PAN_OPEN_EVT */
+typedef struct
+{
+    BD_ADDR         bd_addr;    /* BD address of peer device. */
+    UINT16          handle;     /* Handle associated with this connection. */
+    tBTA_PAN_STATUS status;     /* status of open event */
+    tBTA_PAN_ROLE   local_role; /* Local device PAN role for the connection */
+    tBTA_PAN_ROLE   peer_role;  /* Peer device PAN role for the connection */
+
+} tBTA_PAN_OPEN;
+
+/* Event associated with BTA_PAN_CLOSE_EVT */
+typedef struct
+{
+    UINT16          handle;     /* Handle associated with the connection. */
+} tBTA_PAN_CLOSE;
+
+/* Union of all PAN callback structures */
+typedef union
+{
+    tBTA_PAN_SET_ROLE   set_role;   /* set_role event */
+    tBTA_PAN_OPEN       open;       /* Connection has been opened. */
+    tBTA_PAN_OPENING    opening;    /* Connection being opened */
+    tBTA_PAN_CLOSE      close;      /* Connection has been closed. */
+} tBTA_PAN;
+
+/* Number of PAN connections */
+#ifndef BTA_PAN_NUM_CONN
+#define BTA_PAN_NUM_CONN         4
+#endif
+
+/* PAN callback */
+typedef void (tBTA_PAN_CBACK)(tBTA_PAN_EVT event, tBTA_PAN *p_data);
+
+/*****************************************************************************
+**  External Function Declarations
+*****************************************************************************/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+/*******************************************************************************
+**
+** Function         BTA_PanEnable
+**
+** Description      Enable PAN service.  This function must be
+**                  called before any other functions in the PAN API are called.
+**                  When the enable operation is complete the callback function
+**                  will be called with a BTA_PAN_ENABLE_EVT.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_PanEnable(tBTA_PAN_CBACK p_cback);
+
+/*******************************************************************************
+**
+** Function         BTA_PanDisable
+**
+** Description      Disable PAN service.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_PanDisable(void);
+
+
+/*******************************************************************************
+**
+** Function         BTA_PanSetRole
+**
+** Description      Sets PAN roles. When the enable operation is complete
+**                  the callback function will be called with a BTA_PAN_SET_ROLE_EVT.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_PanSetRole(tBTA_PAN_ROLE role, tBTA_PAN_ROLE_INFO *p_user_info, tBTA_PAN_ROLE_INFO *p_gn_info,
+                    tBTA_PAN_ROLE_INFO *p_nap_info);
+
+
+/*******************************************************************************
+**
+** Function         BTA_PanOpen
+**
+** Description      Opens a connection to a peer device.
+**                  When connection is open callback function is called
+**                  with a BTA_PAN_OPEN_EVT.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_PanOpen(BD_ADDR bd_addr, tBTA_PAN_ROLE    local_role, tBTA_PAN_ROLE  peer_role);
+
+
+
+/*******************************************************************************
+**
+** Function         BTA_PanClose
+**
+** Description      Close a PAN  connection to a peer device.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTA_PanClose(UINT16 handle);
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* BTA_PAN_API_H */
diff --git a/rtkbt/code/bt/bta/include/bta_pan_ci.h b/rtkbt/code/bt/bta/include/bta_pan_ci.h
new file mode 100755
index 0000000..df6bcbb
--- /dev/null
+++ b/rtkbt/code/bt/bta/include/bta_pan_ci.h
@@ -0,0 +1,146 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2004-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the interface file for pan call-in functions.
+ *
+ ******************************************************************************/
+#ifndef BTA_PAN_CI_H
+#define BTA_PAN_CI_H
+
+#include "bta_pan_api.h"
+
+/*****************************************************************************
+**  Function Declarations
+*****************************************************************************/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+/*******************************************************************************
+**
+** Function         bta_pan_ci_tx_ready
+**
+** Description      This function sends an event to PAN indicating the phone is
+**                  ready for more data and PAN should call bta_pan_co_tx_path().
+**                  This function is used when the TX data path is configured
+**                  to use a pull interface.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void bta_pan_ci_tx_ready(UINT16 handle);
+
+/*******************************************************************************
+**
+** Function         bta_pan_ci_rx_ready
+**
+** Description      This function sends an event to PAN indicating the phone
+**                  has data available to send to PAN and PAN should call
+**                  bta_pan_co_rx_path().  This function is used when the RX
+**                  data path is configured to use a pull interface.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void bta_pan_ci_rx_ready(UINT16 handle);
+
+/*******************************************************************************
+**
+** Function         bta_pan_ci_tx_flow
+**
+** Description      This function is called to enable or disable data flow on
+**                  the TX path.  The phone should call this function to
+**                  disable data flow when it is congested and cannot handle
+**                  any more data sent by bta_pan_co_tx_write() or
+**                  bta_pan_co_tx_writebuf().  This function is used when the
+**                  TX data path is configured to use a push interface.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void bta_pan_ci_tx_flow(UINT16 handle, BOOLEAN enable);
+
+/*******************************************************************************
+**
+** Function         bta_pan_ci_rx_writebuf
+**
+** Description      This function is called to send data to the phone when
+**                  the RX path is configured to use a push interface with
+**                  zero copy.  The function sends an event to PAN containing
+**                  the data buffer. The buffer will be freed by BTA; the
+**                  phone must not free the buffer.
+**
+**
+** Returns          TRUE if flow enabled
+**
+*******************************************************************************/
+extern void bta_pan_ci_rx_writebuf(UINT16 handle, BD_ADDR src, BD_ADDR dst, UINT16 protocol, BT_HDR *p_buf, BOOLEAN ext);
+
+/*******************************************************************************
+**
+** Function         bta_pan_ci_readbuf
+**
+** Description      This function is called by the phone to read data from PAN
+**                  when the TX path is configured to use a pull interface.
+**                  The caller must free the buffer when it is through
+**                  processing the buffer.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+extern BT_HDR * bta_pan_ci_readbuf(UINT16 handle, BD_ADDR src, BD_ADDR dst, UINT16 *p_protocol,
+                                   BOOLEAN* p_ext, BOOLEAN* p_forward);
+
+/*******************************************************************************
+**
+** Function         bta_pan_ci_set_pfilters
+**
+** Description      This function is called to set protocol filters
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void bta_pan_ci_set_pfilters(UINT16 handle, UINT16 num_filters, UINT16 *p_start_array, UINT16 *p_end_array);
+
+
+/*******************************************************************************
+**
+** Function         bta_pan_ci_set_mfilters
+**
+** Description      This function is called to set multicast filters
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void bta_pan_ci_set_mfilters(UINT16 handle, UINT16 num_mcast_filters, UINT8 *p_start_array,
+                                    UINT8 *p_end_array);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* BTA_PAN_CI_H */
diff --git a/rtkbt/code/bt/bta/include/bta_pan_co.h b/rtkbt/code/bt/bta/include/bta_pan_co.h
new file mode 100755
index 0000000..3920370
--- /dev/null
+++ b/rtkbt/code/bt/bta/include/bta_pan_co.h
@@ -0,0 +1,200 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2004-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the interface file for data gateway call-out functions.
+ *
+ ******************************************************************************/
+#ifndef BTA_PAN_CO_H
+#define BTA_PAN_CO_H
+
+#include "bta_pan_api.h"
+
+/*****************************************************************************
+**  Constants
+*****************************************************************************/
+
+
+
+/* BT_HDR buffer offset */
+#define BTA_PAN_MIN_OFFSET       PAN_MINIMUM_OFFSET
+
+
+/* Data Flow Mask */
+#define BTA_PAN_RX_PUSH          0x00        /* RX push. */
+#define BTA_PAN_RX_PUSH_BUF      0x01        /* RX push with zero copy. */
+#define BTA_PAN_RX_PULL          0x02        /* RX pull. */
+#define BTA_PAN_TX_PUSH          0x00        /* TX push. */
+#define BTA_PAN_TX_PUSH_BUF      0x10        /* TX push with zero copy. */
+#define BTA_PAN_TX_PULL          0x20        /* TX pull. */
+
+
+
+/*****************************************************************************
+**  Function Declarations
+*****************************************************************************/
+
+/*******************************************************************************
+**
+** Function         bta_pan_co_init
+**
+** Description      This callout function is executed by PAN when a server is
+**                  started by calling BTA_PanEnable().  This function can be
+**                  used by the phone to initialize data paths or for other
+**                  initialization purposes.  The function must return the
+**                  data flow mask as described below.
+**
+**
+** Returns          Data flow mask.
+**
+*******************************************************************************/
+extern UINT8 bta_pan_co_init(UINT8 *q_level);
+
+/*******************************************************************************
+**
+** Function         bta_pan_co_open
+**
+** Description      This function is executed by PAN when a connection
+**                  is opened.  The phone can use this function to set
+**                  up data paths or perform any required initialization.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void bta_pan_co_open(UINT16 handle, UINT8 app_id, tBTA_PAN_ROLE local_role, tBTA_PAN_ROLE peer_role, BD_ADDR peer_addr);
+
+/*******************************************************************************
+**
+** Function         bta_pan_co_close
+**
+** Description      This function is called by PAN when a connection to a
+**                  server is closed.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void bta_pan_co_close(UINT16 handle, UINT8 app_id);
+
+/*******************************************************************************
+**
+** Function         bta_pan_co_tx_path
+**
+** Description      This function is called by PAN to transfer data on the
+**                  TX path; that is, data being sent from BTA to the phone.
+**                  This function is used when the TX data path is configured
+**                  to use the pull interface.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void bta_pan_co_tx_path(UINT16 handle, UINT8 app_id);
+
+/*******************************************************************************
+**
+** Function         bta_pan_co_rx_path
+**
+** Description      This function is called by PAN to transfer data on the
+**                  RX path; that is, data being sent from the phone to BTA.
+**                  This function is used when the RX data path is configured
+**                  to use the pull interface.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void bta_pan_co_rx_path(UINT16 handle, UINT8 app_id);
+
+/*******************************************************************************
+**
+** Function         bta_pan_co_tx_write
+**
+** Description      This function is called by PAN to send data to the phone
+**                  when the TX path is configured to use a push interface.
+**                  The implementation of this function must copy the data to
+**                  the phone's memory.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void bta_pan_co_tx_write(UINT16 handle, UINT8 app_id, BD_ADDR src, BD_ADDR dst, UINT16 protocol, UINT8 *p_data,
+                                UINT16 len, BOOLEAN ext, BOOLEAN forward);
+
+/*******************************************************************************
+**
+** Function         bta_pan_co_tx_writebuf
+**
+** Description      This function is called by PAN to send data to the phone
+**                  when the TX path is configured to use a push interface with
+**                  zero copy.  The phone must free the buffer using function
+**                  osi_free() when it is through processing the buffer.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void bta_pan_co_tx_writebuf(UINT16 handle, UINT8 app_id, BD_ADDR src, BD_ADDR dst, UINT16 protocol, BT_HDR *p_buf,
+                                   BOOLEAN ext, BOOLEAN forward);
+
+
+/*******************************************************************************
+**
+** Function         bta_pan_co_rx_flow
+**
+** Description      This function is called by PAN to enable or disable
+**                  data flow on the RX path when it is configured to use
+**                  a push interface.  If data flow is disabled the phone must
+**                  not call bta_pan_ci_rx_write() or bta_pan_ci_rx_writebuf()
+**                  until data flow is enabled again.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void bta_pan_co_rx_flow(UINT16 handle, UINT8 app_id, BOOLEAN enable);
+
+
+/*******************************************************************************
+**
+** Function         bta_pan_co_filt_ind
+**
+** Description      protocol filter indication from peer device
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void bta_pan_co_pfilt_ind(UINT16 handle, BOOLEAN indication, tBTA_PAN_STATUS result,
+                                 UINT16 len, UINT8 *p_filters);
+
+/*******************************************************************************
+**
+** Function         bta_pan_co_mfilt_ind
+**
+** Description      multicast filter indication from peer device
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void bta_pan_co_mfilt_ind(UINT16 handle,  BOOLEAN indication, tBTA_PAN_STATUS result,
+                                 UINT16 len, UINT8 *p_filters);
+
+#endif /* BTA_PAN_CO_H */
diff --git a/rtkbt/code/bt/bta/include/bta_sdp_api.h b/rtkbt/code/bt/bta/include/bta_sdp_api.h
new file mode 100755
index 0000000..6fa1313
--- /dev/null
+++ b/rtkbt/code/bt/bta/include/bta_sdp_api.h
@@ -0,0 +1,145 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2015 The Android Open Source Project
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the public interface file for the BTA SDP I/F
+ *
+ ******************************************************************************/
+#ifndef BTA_SDP_API_H
+#define BTA_SDP_API_H
+
+#include <hardware/bt_sdp.h>
+#include "bt_target.h"
+#include "bt_types.h"
+#include "bta_api.h"
+#include "btm_api.h"
+
+/* status values */
+#define BTA_SDP_SUCCESS                  0            /* Successful operation. */
+#define BTA_SDP_FAILURE                  1            /* Generic failure. */
+#define BTA_SDP_BUSY                     2            /* Temporarily can not handle this request. */
+
+typedef UINT8 tBTA_SDP_STATUS;
+
+/* SDP I/F callback events */
+/* events received by tBTA_SDP_DM_CBACK */
+#define BTA_SDP_ENABLE_EVT               0  /* SDP service i/f enabled*/
+#define BTA_SDP_SEARCH_EVT               1  /* SDP Service started */
+#define BTA_SDP_SEARCH_COMP_EVT          2  /* SDP search complete */
+#define BTA_SDP_CREATE_RECORD_USER_EVT   3  /* SDP search complete */
+#define BTA_SDP_REMOVE_RECORD_USER_EVT   4  /* SDP search complete */
+#define BTA_SDP_MAX_EVT                  5  /* max number of SDP events */
+
+#define BTA_SDP_MAX_RECORDS 15
+
+typedef UINT16 tBTA_SDP_EVT;
+
+/* data associated with BTA_SDP_DISCOVERY_COMP_EVT */
+typedef struct
+{
+    tBTA_SDP_STATUS      status;
+    BD_ADDR              remote_addr;
+    tBT_UUID             uuid;
+    int                  record_count;
+    bluetooth_sdp_record records[BTA_SDP_MAX_RECORDS];
+} tBTA_SDP_SEARCH_COMP;
+
+typedef union
+{
+    tBTA_SDP_STATUS              status;            /* BTA_SDP_SEARCH_EVT */
+    tBTA_SDP_SEARCH_COMP         sdp_search_comp;   /* BTA_SDP_SEARCH_COMP_EVT */
+} tBTA_SDP;
+
+/* SDP DM Interface callback */
+typedef void (tBTA_SDP_DM_CBACK)(tBTA_SDP_EVT event, tBTA_SDP *p_data, void * user_data);
+
+/* MCE configuration structure */
+typedef struct
+{
+    UINT16  sdp_db_size;            /* The size of p_sdp_db */
+    tSDP_DISCOVERY_DB   *p_sdp_db;  /* The data buffer to keep SDP database */
+} tBTA_SDP_CFG;
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+/*******************************************************************************
+**
+** Function         BTA_SdpEnable
+**
+** Description      Enable the SDP I/F service. When the enable
+**                  operation is complete the callback function will be
+**                  called with a BTA_SDP_ENABLE_EVT. This function must
+**                  be called before other functions in the MCE API are
+**                  called.
+**
+** Returns          BTA_SDP_SUCCESS if successful.
+**                  BTA_SDP_FAIL if internal failure.
+**
+*******************************************************************************/
+extern tBTA_SDP_STATUS BTA_SdpEnable(tBTA_SDP_DM_CBACK *p_cback);
+
+/*******************************************************************************
+**
+** Function         BTA_SdpSearch
+**
+** Description      Start a search for sdp records for a specific BD_ADDR with a
+**                  specific profile uuid.
+**                  When the search operation is completed, the callback function
+**                  will be called with a BTA_SDP_SEARCH_EVT.
+** Returns          BTA_SDP_SUCCESS if successful.
+**                  BTA_SDP_FAIL if internal failure.
+**
+*******************************************************************************/
+extern tBTA_SDP_STATUS BTA_SdpSearch(BD_ADDR bd_addr,tSDP_UUID *uuid);
+
+/*******************************************************************************
+**
+** Function         BTA_SdpCreateRecordByUser
+**
+** Description      This function is used to request a callback to create a SDP
+**                  record. The registered callback will be called with event
+**                  BTA_SDP_CREATE_RECORD_USER_EVT.
+**
+** Returns          BTA_SDP_SUCCESS, if the request is being processed.
+**                  BTA_SDP_FAILURE, otherwise.
+**
+*******************************************************************************/
+extern tBTA_SDP_STATUS BTA_SdpCreateRecordByUser(void* user_data);
+
+/*******************************************************************************
+**
+** Function         BTA_SdpRemoveRecordByUser
+**
+** Description      This function is used to request a callback to remove a SDP
+**                  record. The registered callback will be called with event
+**                  BTA_SDP_REMOVE_RECORD_USER_EVT.
+**
+** Returns          BTA_SDP_SUCCESS, if the request is being processed.
+**                  BTA_SDP_FAILURE, otherwise.
+**
+*******************************************************************************/
+extern tBTA_SDP_STATUS BTA_SdpRemoveRecordByUser(void* user_data);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* BTA_SDP_API_H */
diff --git a/rtkbt/code/bt/bta/include/utl.h b/rtkbt/code/bt/bta/include/utl.h
new file mode 100755
index 0000000..c309ec9
--- /dev/null
+++ b/rtkbt/code/bt/bta/include/utl.h
@@ -0,0 +1,156 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  Basic utility functions.
+ *
+ ******************************************************************************/
+#ifndef UTL_H
+#define UTL_H
+
+#include "bt_types.h"
+#include "bt_utils.h"
+
+/*****************************************************************************
+**  Constants
+*****************************************************************************/
+/*** class of device settings ***/
+#define BTA_UTL_SET_COD_MAJOR_MINOR     0x01
+#define BTA_UTL_SET_COD_SERVICE_CLASS   0x02 /* only set the bits in the input */
+#define BTA_UTL_CLR_COD_SERVICE_CLASS   0x04
+#define BTA_UTL_SET_COD_ALL             0x08 /* take service class as the input (may clear some set bits!!) */
+#define BTA_UTL_INIT_COD                0x0a
+
+/*****************************************************************************
+**  Type Definitions
+*****************************************************************************/
+
+/** for utl_set_device_class() **/
+typedef struct
+{
+    UINT8       minor;
+    UINT8       major;
+    UINT16      service;
+} tBTA_UTL_COD;
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+/*****************************************************************************
+**  External Function Declarations
+*****************************************************************************/
+
+/*******************************************************************************
+**
+** Function         utl_str2int
+**
+** Description      This utility function converts a character string to an
+**                  integer.  Acceptable values in string are 0-9.  If invalid
+**                  string or string value too large, -1 is returned.
+**
+**
+** Returns          Integer value or -1 on error.
+**
+*******************************************************************************/
+extern INT16 utl_str2int(const char *p_s);
+
+/*******************************************************************************
+**
+** Function         utl_strucmp
+**
+** Description      This utility function compares two strings in uppercase.
+**                  String p_s must be uppercase.  String p_t is converted to
+**                  uppercase if lowercase.  If p_s ends first, the substring
+**                  match is counted as a match.
+**
+**
+** Returns          0 if strings match, nonzero otherwise.
+**
+*******************************************************************************/
+extern int utl_strucmp(const char *p_s, const char *p_t);
+
+/*******************************************************************************
+**
+** Function         utl_itoa
+**
+** Description      This utility function converts a UINT16 to a string.  The
+**                  string is NULL-terminated.  The length of the string is
+**                  returned.
+**
+**
+** Returns          Length of string.
+**
+*******************************************************************************/
+extern UINT8 utl_itoa(UINT16 i, char *p_s);
+
+/*******************************************************************************
+**
+** Function         utl_set_device_class
+**
+** Description      This function updates the local Device Class.
+**
+** Parameters:
+**                  p_cod   - Pointer to the device class to set to
+**
+**                  cmd     - the fields of the device class to update.
+**                            BTA_UTL_SET_COD_MAJOR_MINOR, - overwrite major, minor class
+**                            BTA_UTL_SET_COD_SERVICE_CLASS - set the bits in the input
+**                            BTA_UTL_CLR_COD_SERVICE_CLASS - clear the bits in the input
+**                            BTA_UTL_SET_COD_ALL - overwrite major, minor, set the bits in service class
+**                            BTA_UTL_INIT_COD - overwrite major, minor, and service class
+**
+** Returns          TRUE if successful, Otherwise FALSE
+**
+*******************************************************************************/
+extern BOOLEAN utl_set_device_class(tBTA_UTL_COD *p_cod, UINT8 cmd);
+
+/*******************************************************************************
+**
+** Function         utl_isintstr
+**
+** Description      This utility function checks if the given string is an
+**                  integer string or not
+**
+**
+** Returns          TRUE if successful, Otherwise FALSE
+**
+*******************************************************************************/
+extern BOOLEAN utl_isintstr(const char *p_s);
+
+/*******************************************************************************
+**
+** Function         utl_isdialstr
+**
+** Description      This utility function checks if the given string contains
+**                  only dial digits or not
+**
+**
+** Returns          TRUE if successful, Otherwise FALSE
+**
+*******************************************************************************/
+extern BOOLEAN utl_isdialstr(const char *p_s);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* UTL_H */
diff --git a/rtkbt/code/bt/bta/jv/bta_jv_act.c b/rtkbt/code/bt/bta/jv/bta_jv_act.c
new file mode 100755
index 0000000..3918fdf
--- /dev/null
+++ b/rtkbt/code/bt/bta/jv/bta_jv_act.c
@@ -0,0 +1,2646 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2006-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains action functions for BTA JV APIs.
+ *
+ ******************************************************************************/
+#include <hardware/bluetooth.h>
+#include <arpa/inet.h>
+#include <pthread.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "osi/include/allocator.h"
+#include "bt_types.h"
+#include "bt_common.h"
+#include "utl.h"
+#include "bta_sys.h"
+#include "bta_api.h"
+#include "bta_jv_api.h"
+#include "bta_jv_int.h"
+#include "bta_jv_co.h"
+#include "btm_api.h"
+#include "btm_int.h"
+#include "sdp_api.h"
+#include "l2c_api.h"
+#include "port_api.h"
+#include "rfcdefs.h"
+#include "avct_api.h"
+#include "avdt_api.h"
+#include "gap_api.h"
+#include "l2c_api.h"
+
+#include "osi/include/osi.h"
+
+
+/* one of these exists for each client */
+struct fc_client {
+    struct fc_client    *next_all_list;
+    struct fc_client    *next_chan_list;
+    BD_ADDR              remote_addr;
+    uint32_t             id;
+    tBTA_JV_L2CAP_CBACK *p_cback;
+    void                *user_data;
+    uint16_t             handle;
+    uint16_t             chan;
+    uint8_t              sec_id;
+    unsigned             server      : 1;
+    unsigned             init_called : 1;
+};
+
+/* one of these exists for each channel we're dealing with */
+struct fc_channel {
+    struct fc_channel   *next;
+    struct fc_client    *clients;
+    uint8_t              has_server : 1;
+    uint16_t             chan;
+};
+
+
+static struct fc_client *fc_clients;
+static struct fc_channel *fc_channels;
+static uint32_t fc_next_id;
+
+
+static void fcchan_conn_chng_cbk(UINT16 chan, BD_ADDR bd_addr, BOOLEAN connected,
+        UINT16 reason, tBT_TRANSPORT );
+static void fcchan_data_cbk(UINT16 chan, BD_ADDR bd_addr, BT_HDR *p_buf);
+
+
+extern void uuid_to_string_legacy(bt_uuid_t *p_uuid, char *str);
+static inline void logu(const char* title, const uint8_t * p_uuid)
+{
+    char uuids[128];
+    uuid_to_string_legacy((bt_uuid_t*)p_uuid, uuids);
+    APPL_TRACE_DEBUG("%s: %s", title, uuids);
+}
+
+
+static tBTA_JV_PCB * bta_jv_add_rfc_port(tBTA_JV_RFC_CB *p_cb, tBTA_JV_PCB *p_pcb_open);
+static tBTA_JV_STATUS bta_jv_free_set_pm_profile_cb(UINT32 jv_handle);
+static void bta_jv_pm_conn_busy(tBTA_JV_PM_CB *p_cb);
+static void bta_jv_pm_conn_idle(tBTA_JV_PM_CB *p_cb);
+static void bta_jv_pm_state_change(tBTA_JV_PM_CB *p_cb, const tBTA_JV_CONN_STATE state);
+tBTA_JV_STATUS bta_jv_set_pm_conn_state(tBTA_JV_PM_CB *p_cb, const tBTA_JV_CONN_STATE
+        new_st);
+
+/*******************************************************************************
+**
+** Function     bta_jv_alloc_sec_id
+**
+** Description  allocate a security id
+**
+** Returns
+**
+*******************************************************************************/
+UINT8 bta_jv_alloc_sec_id(void)
+{
+    UINT8 ret = 0;
+    int i;
+    for(i=0; i<BTA_JV_NUM_SERVICE_ID; i++)
+    {
+        if(0 == bta_jv_cb.sec_id[i])
+        {
+            bta_jv_cb.sec_id[i] = BTA_JV_FIRST_SERVICE_ID + i;
+            ret = bta_jv_cb.sec_id[i];
+            break;
+        }
+    }
+    return ret;
+
+}
+static int get_sec_id_used(void)
+{
+    int i;
+    int used = 0;
+    for(i=0; i<BTA_JV_NUM_SERVICE_ID; i++)
+    {
+        if(bta_jv_cb.sec_id[i])
+            used++;
+    }
+    if (used == BTA_JV_NUM_SERVICE_ID)
+        APPL_TRACE_ERROR("get_sec_id_used, sec id exceeds the limit:%d",
+                BTA_JV_NUM_SERVICE_ID);
+    return used;
+}
+static int get_rfc_cb_used(void)
+{
+    int i;
+    int used = 0;
+    for(i=0; i<BTA_JV_MAX_RFC_CONN; i++)
+    {
+        if(bta_jv_cb.rfc_cb[i].handle )
+            used++;
+    }
+    if (used == BTA_JV_MAX_RFC_CONN)
+        APPL_TRACE_ERROR("get_sec_id_used, rfc ctrl block exceeds the limit:%d",
+                BTA_JV_MAX_RFC_CONN);
+    return used;
+}
+
+/*******************************************************************************
+**
+** Function     bta_jv_free_sec_id
+**
+** Description  free the given security id
+**
+** Returns
+**
+*******************************************************************************/
+static void bta_jv_free_sec_id(UINT8 *p_sec_id)
+{
+    UINT8 sec_id = *p_sec_id;
+    *p_sec_id = 0;
+    if(sec_id >= BTA_JV_FIRST_SERVICE_ID && sec_id <= BTA_JV_LAST_SERVICE_ID)
+    {
+        BTM_SecClrService(sec_id);
+        bta_jv_cb.sec_id[sec_id - BTA_JV_FIRST_SERVICE_ID] = 0;
+    }
+}
+
+/*******************************************************************************
+**
+** Function     bta_jv_alloc_rfc_cb
+**
+** Description  allocate a control block for the given port handle
+**
+** Returns
+**
+*******************************************************************************/
+tBTA_JV_RFC_CB * bta_jv_alloc_rfc_cb(UINT16 port_handle, tBTA_JV_PCB **pp_pcb)
+{
+    tBTA_JV_RFC_CB *p_cb = NULL;
+    tBTA_JV_PCB *p_pcb;
+    int i, j;
+    for(i=0; i<BTA_JV_MAX_RFC_CONN; i++)
+    {
+        if (0 == bta_jv_cb.rfc_cb[i].handle )
+        {
+            p_cb = &bta_jv_cb.rfc_cb[i];
+            /* mask handle to distinguish it with L2CAP handle */
+            p_cb->handle = (i + 1) | BTA_JV_RFCOMM_MASK;
+
+            p_cb->max_sess          = 1;
+            p_cb->curr_sess         = 1;
+            for (j = 0; j < BTA_JV_MAX_RFC_SR_SESSION; j++)
+                p_cb->rfc_hdl[j] = 0;
+            p_cb->rfc_hdl[0]        = port_handle;
+            APPL_TRACE_DEBUG( "bta_jv_alloc_rfc_cb port_handle:%d handle:0x%2x",
+                    port_handle, p_cb->handle);
+
+            p_pcb = &bta_jv_cb.port_cb[port_handle - 1];
+            p_pcb->handle = p_cb->handle;
+            p_pcb->port_handle = port_handle;
+            p_pcb->p_pm_cb = NULL;
+            *pp_pcb = p_pcb;
+            break;
+        }
+    }
+    if(p_cb == NULL)
+    {
+        APPL_TRACE_ERROR( "bta_jv_alloc_rfc_cb: port_handle:%d, ctrl block exceeds "
+                "limit:%d", port_handle, BTA_JV_MAX_RFC_CONN);
+    }
+    return p_cb;
+}
+
+/*******************************************************************************
+**
+** Function     bta_jv_rfc_port_to_pcb
+**
+** Description  find the port control block associated with the given port handle
+**
+** Returns
+**
+*******************************************************************************/
+tBTA_JV_PCB * bta_jv_rfc_port_to_pcb(UINT16 port_handle)
+{
+    tBTA_JV_PCB *p_pcb = NULL;
+
+    if ((port_handle > 0) && (port_handle <= MAX_RFC_PORTS)
+            && bta_jv_cb.port_cb[port_handle - 1].handle)
+    {
+        p_pcb = &bta_jv_cb.port_cb[port_handle - 1];
+    }
+
+    return p_pcb;
+}
+
+/*******************************************************************************
+**
+** Function     bta_jv_rfc_port_to_cb
+**
+** Description  find the RFCOMM control block associated with the given port handle
+**
+** Returns
+**
+*******************************************************************************/
+tBTA_JV_RFC_CB * bta_jv_rfc_port_to_cb(UINT16 port_handle)
+{
+    tBTA_JV_RFC_CB *p_cb = NULL;
+    UINT32 handle;
+
+    if ((port_handle > 0) && (port_handle <= MAX_RFC_PORTS)
+            && bta_jv_cb.port_cb[port_handle - 1].handle)
+    {
+        handle = bta_jv_cb.port_cb[port_handle - 1].handle;
+        handle &= BTA_JV_RFC_HDL_MASK;
+        handle &= ~BTA_JV_RFCOMM_MASK;
+        if (handle)
+            p_cb = &bta_jv_cb.rfc_cb[handle - 1];
+    }
+    else
+    {
+        APPL_TRACE_WARNING("bta_jv_rfc_port_to_cb(port_handle:0x%x):jv handle:0x%x not"
+                " FOUND", port_handle, bta_jv_cb.port_cb[port_handle - 1].handle);
+    }
+    return p_cb;
+}
+
+static tBTA_JV_STATUS bta_jv_free_rfc_cb(tBTA_JV_RFC_CB *p_cb, tBTA_JV_PCB *p_pcb)
+{
+    tBTA_JV_STATUS status = BTA_JV_SUCCESS;
+    BOOLEAN remove_server = FALSE;
+    int close_pending = 0;
+
+    if (!p_cb || !p_pcb)
+    {
+        APPL_TRACE_ERROR("bta_jv_free_sr_rfc_cb, p_cb or p_pcb cannot be null");
+        return BTA_JV_FAILURE;
+    }
+    APPL_TRACE_DEBUG("bta_jv_free_sr_rfc_cb: max_sess:%d, curr_sess:%d, p_pcb:%p, user:"
+            "%p, state:%d, jv handle: 0x%x" ,p_cb->max_sess, p_cb->curr_sess, p_pcb,
+            p_pcb->user_data, p_pcb->state, p_pcb->handle);
+
+    if (p_cb->curr_sess <= 0)
+        return BTA_JV_SUCCESS;
+
+    switch (p_pcb->state)
+    {
+    case BTA_JV_ST_CL_CLOSING:
+    case BTA_JV_ST_SR_CLOSING:
+        APPL_TRACE_WARNING("bta_jv_free_sr_rfc_cb: return on closing, port state:%d, "
+                "scn:%d, p_pcb:%p, user_data:%p", p_pcb->state, p_cb->scn, p_pcb,
+                p_pcb->user_data);
+        status = BTA_JV_FAILURE;
+        return status;
+    case BTA_JV_ST_CL_OPEN:
+    case BTA_JV_ST_CL_OPENING:
+        APPL_TRACE_DEBUG("bta_jv_free_sr_rfc_cb: state: %d, scn:%d,"
+                          " user_data:%p", p_pcb->state, p_cb->scn, p_pcb->user_data);
+        p_pcb->state = BTA_JV_ST_CL_CLOSING;
+        break;
+    case BTA_JV_ST_SR_LISTEN:
+        p_pcb->state = BTA_JV_ST_SR_CLOSING;
+        remove_server = TRUE;
+        APPL_TRACE_DEBUG("bta_jv_free_sr_rfc_cb: state: BTA_JV_ST_SR_LISTEN, scn:%d,"
+                " user_data:%p", p_cb->scn, p_pcb->user_data);
+        break;
+    case BTA_JV_ST_SR_OPEN:
+        p_pcb->state = BTA_JV_ST_SR_CLOSING;
+        APPL_TRACE_DEBUG("bta_jv_free_sr_rfc_cb: state: BTA_JV_ST_SR_OPEN, scn:%d,"
+                " user_data:%p", p_cb->scn, p_pcb->user_data);
+        break;
+    default:
+        APPL_TRACE_WARNING("bta_jv_free_sr_rfc_cb():failed, ignore port state:%d, scn:"
+                "%d, p_pcb:%p, jv handle: 0x%x, port_handle: %d, user_data:%p",
+                p_pcb->state, p_cb->scn, p_pcb, p_pcb->handle, p_pcb->port_handle,
+                p_pcb->user_data);
+        status = BTA_JV_FAILURE;
+        break;
+    }
+    if (BTA_JV_SUCCESS == status)
+    {
+        int port_status;
+
+        if (!remove_server)
+            port_status = RFCOMM_RemoveConnection(p_pcb->port_handle);
+        else
+            port_status = RFCOMM_RemoveServer(p_pcb->port_handle);
+        if (port_status != PORT_SUCCESS)
+        {
+            status = BTA_JV_FAILURE;
+            APPL_TRACE_WARNING("bta_jv_free_rfc_cb(jv handle: 0x%x, state %d)::"
+                    "port_status: %d, port_handle: %d, close_pending: %d:Remove",
+                    p_pcb->handle, p_pcb->state, port_status, p_pcb->port_handle,
+                    close_pending);
+        }
+    }
+    if (!close_pending)
+    {
+        p_pcb->port_handle = 0;
+        p_pcb->state = BTA_JV_ST_NONE;
+        bta_jv_free_set_pm_profile_cb(p_pcb->handle);
+
+        //Initialize congestion flags
+        p_pcb->cong = FALSE;
+        p_pcb->user_data = 0;
+        int si = BTA_JV_RFC_HDL_TO_SIDX(p_pcb->handle);
+        if (0 <= si && si < BTA_JV_MAX_RFC_SR_SESSION)
+            p_cb->rfc_hdl[si] = 0;
+        p_pcb->handle = 0;
+        p_cb->curr_sess--;
+        if (p_cb->curr_sess == 0)
+        {
+            p_cb->scn = 0;
+            bta_jv_free_sec_id(&p_cb->sec_id);
+            p_cb->p_cback = NULL;
+            p_cb->handle = 0;
+            p_cb->curr_sess = -1;
+        }
+        if (remove_server) {
+            bta_jv_free_sec_id(&p_cb->sec_id);
+        }
+    }
+    return status;
+}
+
+/*******************************************************************************
+**
+** Function     bta_jv_free_l2c_cb
+**
+** Description  free the given L2CAP control block
+**
+** Returns
+**
+*******************************************************************************/
+tBTA_JV_STATUS bta_jv_free_l2c_cb(tBTA_JV_L2C_CB *p_cb)
+{
+    tBTA_JV_STATUS status = BTA_JV_SUCCESS;
+
+    if(BTA_JV_ST_NONE != p_cb->state)
+    {
+        bta_jv_free_set_pm_profile_cb((UINT32)p_cb->handle);
+        if (GAP_ConnClose(p_cb->handle) != BT_PASS)
+                status = BTA_JV_FAILURE;
+    }
+    p_cb->psm = 0;
+    p_cb->state = BTA_JV_ST_NONE;
+    p_cb->cong = FALSE;
+    bta_jv_free_sec_id(&p_cb->sec_id);
+    p_cb->p_cback = NULL;
+    return status;
+}
+
+/*******************************************************************************
+**
+**
+** Function    bta_jv_clear_pm_cb
+**
+** Description clears jv pm control block and optionally calls bta_sys_conn_close()
+**             In general close_conn should be set to TRUE to remove registering with
+**             dm pm!
+**
+** WARNING:    Make sure to clear pointer form port or l2c to this control block too!
+**
+*******************************************************************************/
+static void bta_jv_clear_pm_cb(tBTA_JV_PM_CB *p_pm_cb, BOOLEAN close_conn)
+{
+    /* needs to be called if registered with bta pm, otherwise we may run out of dm pm slots! */
+    if (close_conn)
+        bta_sys_conn_close(BTA_ID_JV, p_pm_cb->app_id, p_pm_cb->peer_bd_addr);
+    p_pm_cb->state = BTA_JV_PM_FREE_ST;
+    p_pm_cb->app_id = BTA_JV_PM_ALL;
+    p_pm_cb->handle = BTA_JV_PM_HANDLE_CLEAR;
+    bdcpy(p_pm_cb->peer_bd_addr, bd_addr_null);
+}
+
+/*******************************************************************************
+ **
+ ** Function     bta_jv_free_set_pm_profile_cb
+ **
+ ** Description  free pm profile control block
+ **
+ ** Returns     BTA_JV_SUCCESS if cb has been freed correctly,
+ **             BTA_JV_FAILURE in case of no profile has been registered or already freed
+ **
+ *******************************************************************************/
+static tBTA_JV_STATUS bta_jv_free_set_pm_profile_cb(UINT32 jv_handle)
+{
+    tBTA_JV_STATUS status = BTA_JV_FAILURE;
+    tBTA_JV_PM_CB  **p_cb;
+    int i, j, bd_counter = 0, appid_counter = 0;
+
+    for (i = 0; i < BTA_JV_PM_MAX_NUM; i++)
+    {
+        p_cb = NULL;
+        if ((bta_jv_cb.pm_cb[i].state != BTA_JV_PM_FREE_ST) &&
+                (jv_handle == bta_jv_cb.pm_cb[i].handle))
+        {
+            for (j = 0; j < BTA_JV_PM_MAX_NUM; j++)
+            {
+                if (bdcmp(bta_jv_cb.pm_cb[j].peer_bd_addr, bta_jv_cb.pm_cb[i].peer_bd_addr) == 0)
+                    bd_counter++;
+                if (bta_jv_cb.pm_cb[j].app_id == bta_jv_cb.pm_cb[i].app_id)
+                    appid_counter++;
+            }
+
+            APPL_TRACE_API("%s(jv_handle: 0x%2x), idx: %d, "
+                    "app_id: 0x%x",__func__, jv_handle, i, bta_jv_cb.pm_cb[i].app_id);
+            APPL_TRACE_API("%s, bd_counter = %d, "
+                    "appid_counter = %d", __func__, bd_counter, appid_counter);
+            if (bd_counter > 1)
+            {
+                bta_jv_pm_conn_idle(&bta_jv_cb.pm_cb[i]);
+            }
+
+            if (bd_counter <= 1 || (appid_counter <= 1))
+            {
+                bta_jv_clear_pm_cb(&bta_jv_cb.pm_cb[i], TRUE);
+            }
+            else
+            {
+                bta_jv_clear_pm_cb(&bta_jv_cb.pm_cb[i], FALSE);
+            }
+
+            if (BTA_JV_RFCOMM_MASK & jv_handle)
+            {
+                UINT32 hi = ((jv_handle & BTA_JV_RFC_HDL_MASK) & ~BTA_JV_RFCOMM_MASK) - 1;
+                UINT32 si = BTA_JV_RFC_HDL_TO_SIDX(jv_handle);
+                if (hi < BTA_JV_MAX_RFC_CONN && bta_jv_cb.rfc_cb[hi].p_cback && si
+                        < BTA_JV_MAX_RFC_SR_SESSION && bta_jv_cb.rfc_cb[hi].rfc_hdl[si])
+                {
+                    tBTA_JV_PCB *p_pcb = bta_jv_rfc_port_to_pcb(bta_jv_cb.rfc_cb[hi].rfc_hdl[si]);
+                    if (p_pcb)
+                    {
+                        if (NULL == p_pcb->p_pm_cb)
+                            APPL_TRACE_WARNING("%s(jv_handle:"
+                                    " 0x%x):port_handle: 0x%x, p_pm_cb: %d: no link to "
+                                    "pm_cb?", __func__, jv_handle, p_pcb->port_handle, i);
+                        p_cb = &p_pcb->p_pm_cb;
+                    }
+                }
+            }
+            else
+            {
+                if (jv_handle < BTA_JV_MAX_L2C_CONN)
+                {
+                    tBTA_JV_L2C_CB *p_l2c_cb = &bta_jv_cb.l2c_cb[jv_handle];
+                    if (NULL == p_l2c_cb->p_pm_cb)
+                        APPL_TRACE_WARNING("%s(jv_handle: "
+                                "0x%x): p_pm_cb: %d: no link to pm_cb?", __func__, jv_handle, i);
+                    p_cb = &p_l2c_cb->p_pm_cb;
+                }
+            }
+            if (p_cb)
+            {
+                *p_cb = NULL;
+                status = BTA_JV_SUCCESS;
+            }
+        }
+    }
+    return status;
+}
+
+/*******************************************************************************
+ **
+ ** Function    bta_jv_alloc_set_pm_profile_cb
+ **
+ ** Description set PM profile control block
+ **
+ ** Returns     pointer to allocated cb or NULL in case of failure
+ **
+ *******************************************************************************/
+static tBTA_JV_PM_CB *bta_jv_alloc_set_pm_profile_cb(UINT32 jv_handle, tBTA_JV_PM_ID app_id)
+{
+    BOOLEAN bRfcHandle = (jv_handle & BTA_JV_RFCOMM_MASK) != 0;
+    BD_ADDR peer_bd_addr;
+    int i, j;
+    tBTA_JV_PM_CB **pp_cb;
+
+    for (i = 0; i < BTA_JV_PM_MAX_NUM; i++)
+    {
+        pp_cb = NULL;
+        if (bta_jv_cb.pm_cb[i].state == BTA_JV_PM_FREE_ST)
+        {
+            /* rfc handle bd addr retrieval requires core stack handle */
+            if (bRfcHandle)
+            {
+                for (j = 0; j < BTA_JV_MAX_RFC_CONN; j++)
+                {
+                    if (jv_handle == bta_jv_cb.port_cb[j].handle)
+                    {
+                        pp_cb = &bta_jv_cb.port_cb[j].p_pm_cb;
+                        if (PORT_SUCCESS != PORT_CheckConnection(
+                                bta_jv_cb.port_cb[j].port_handle, peer_bd_addr, NULL))
+                            i = BTA_JV_PM_MAX_NUM;
+                        break;
+                    }
+                }
+            }
+            else
+            {
+                /* use jv handle for l2cap bd address retrieval */
+                for (j = 0; j < BTA_JV_MAX_L2C_CONN; j++)
+                {
+                    if (jv_handle == bta_jv_cb.l2c_cb[j].handle)
+                    {
+                        pp_cb = &bta_jv_cb.l2c_cb[j].p_pm_cb;
+                        UINT8 *p_bd_addr = GAP_ConnGetRemoteAddr((UINT16)jv_handle);
+                        if (NULL != p_bd_addr)
+                            bdcpy(peer_bd_addr, p_bd_addr);
+                        else
+                            i = BTA_JV_PM_MAX_NUM;
+                        break;
+                    }
+                }
+            }
+            APPL_TRACE_API("bta_jv_alloc_set_pm_profile_cb(handle 0x%2x, app_id %d): "
+                    "idx: %d, (BTA_JV_PM_MAX_NUM: %d), pp_cb: 0x%x", jv_handle, app_id,
+                    i, BTA_JV_PM_MAX_NUM, pp_cb);
+            break;
+        }
+    }
+
+    if ((i != BTA_JV_PM_MAX_NUM) && (NULL != pp_cb))
+    {
+        *pp_cb = &bta_jv_cb.pm_cb[i];
+        bta_jv_cb.pm_cb[i].handle = jv_handle;
+        bta_jv_cb.pm_cb[i].app_id = app_id;
+        bdcpy(bta_jv_cb.pm_cb[i].peer_bd_addr, peer_bd_addr);
+        bta_jv_cb.pm_cb[i].state = BTA_JV_PM_IDLE_ST;
+        return &bta_jv_cb.pm_cb[i];
+    }
+    APPL_TRACE_WARNING("bta_jv_alloc_set_pm_profile_cb(jv_handle: 0x%x, app_id: %d) "
+            "return NULL", jv_handle, app_id);
+    return (tBTA_JV_PM_CB *)NULL;
+}
+
+/*******************************************************************************
+**
+** Function     bta_jv_check_psm
+**
+** Description  for now use only the legal PSM per JSR82 spec
+**
+** Returns      TRUE, if allowed
+**
+*******************************************************************************/
+BOOLEAN bta_jv_check_psm(UINT16 psm)
+{
+    BOOLEAN ret = FALSE;
+
+    if (L2C_IS_VALID_PSM(psm))
+    {
+        if (psm < 0x1001)
+        {
+            /* see if this is defined by spec */
+            switch (psm)
+            {
+            case SDP_PSM:           /* 1 */
+            case BT_PSM_RFCOMM:     /* 3 */
+                /* do not allow java app to use these 2 PSMs */
+                break;
+
+            case TCS_PSM_INTERCOM:  /* 5 */
+            case TCS_PSM_CORDLESS:  /* 7 */
+                if( FALSE == bta_sys_is_register(BTA_ID_CT) &&
+                    FALSE == bta_sys_is_register(BTA_ID_CG) )
+                    ret = TRUE;
+                break;
+
+            case BT_PSM_BNEP:       /* F */
+                if(FALSE == bta_sys_is_register(BTA_ID_PAN))
+                    ret = TRUE;
+                break;
+
+            case HID_PSM_CONTROL:   /* 0x11 */
+            case HID_PSM_INTERRUPT: /* 0x13 */
+                //FIX: allow HID Device and HID Host to coexist
+                if( FALSE == bta_sys_is_register(BTA_ID_HD) ||
+                    FALSE == bta_sys_is_register(BTA_ID_HH) )
+                    ret = TRUE;
+                break;
+
+            case AVCT_PSM:          /* 0x17 */
+            case AVDT_PSM:          /* 0x19 */
+                if ((FALSE == bta_sys_is_register(BTA_ID_AV)) &&
+                   (FALSE == bta_sys_is_register(BTA_ID_AVK)))
+                    ret = TRUE;
+                break;
+
+            default:
+                ret = TRUE;
+                break;
+            }
+        }
+        else
+        {
+            ret = TRUE;
+        }
+    }
+    return ret;
+
+}
+
+/*******************************************************************************
+**
+** Function     bta_jv_enable
+**
+** Description  Initialises the JAVA I/F
+**
+** Returns      void
+**
+*******************************************************************************/
+void bta_jv_enable(tBTA_JV_MSG *p_data)
+{
+    tBTA_JV_STATUS status = BTA_JV_SUCCESS;
+    bta_jv_cb.p_dm_cback = p_data->enable.p_cback;
+    bta_jv_cb.p_dm_cback(BTA_JV_ENABLE_EVT, (tBTA_JV *)&status, 0);
+    memset(bta_jv_cb.free_psm_list,0,sizeof(bta_jv_cb.free_psm_list));
+}
+
+/*******************************************************************************
+**
+** Function     bta_jv_disable
+**
+** Description  Disables the BT device manager
+**              free the resources used by java
+**
+** Returns      void
+**
+*******************************************************************************/
+void bta_jv_disable (tBTA_JV_MSG *p_data)
+{
+    UNUSED(p_data);
+
+    APPL_TRACE_ERROR("%s",__func__);
+}
+
+
+/**
+ * We keep a list of PSM's that have been freed from JAVA, for reuse.
+ * This function will return a free PSM, and delete it from the free
+ * list.
+ * If no free PSMs exist, 0 will be returned.
+ */
+static UINT16 bta_jv_get_free_psm() {
+    const int cnt = sizeof(bta_jv_cb.free_psm_list)/sizeof(bta_jv_cb.free_psm_list[0]);
+    for (int i = 0; i < cnt; i++) {
+        UINT16 psm = bta_jv_cb.free_psm_list[i];
+        if (psm != 0) {
+            APPL_TRACE_DEBUG("%s(): Reusing PSM: 0x%04d", __func__, psm)
+            bta_jv_cb.free_psm_list[i] = 0;
+            return psm;
+        }
+    }
+    return 0;
+}
+
+static void bta_jv_set_free_psm(UINT16 psm) {
+    int free_index = -1;
+    const int cnt = sizeof(bta_jv_cb.free_psm_list)/sizeof(bta_jv_cb.free_psm_list[0]);
+    for (int i = 0; i < cnt; i++) {
+        if (bta_jv_cb.free_psm_list[i] == 0) {
+            free_index = i;
+        } else if (psm == bta_jv_cb.free_psm_list[i]) {
+            return; // PSM already freed?
+        }
+    }
+    if (free_index != -1) {
+        bta_jv_cb.free_psm_list[free_index] = psm;
+        APPL_TRACE_DEBUG("%s(): Recycling PSM: 0x%04d", __func__, psm)
+    } else {
+        APPL_TRACE_ERROR("%s unable to free psm 0x%x no more free slots",__func__, psm);
+    }
+}
+
+/*******************************************************************************
+**
+** Function     bta_jv_get_channel_id
+**
+** Description  Obtain a free SCN (Server Channel Number)
+**              (RFCOMM channel or L2CAP PSM)
+**
+** Returns      void
+**
+*******************************************************************************/
+void bta_jv_get_channel_id(tBTA_JV_MSG *p_data)
+{
+    UINT16   psm = 0;
+
+    switch (p_data->alloc_channel.type) {
+        case BTA_JV_CONN_TYPE_RFCOMM: {
+            INT32   channel = p_data->alloc_channel.channel;
+            UINT8 scn = 0;
+            if (channel > 0)
+            {
+                if (BTM_TryAllocateSCN(channel) == FALSE)
+                {
+                    APPL_TRACE_ERROR("rfc channel:%d already in use or invalid", channel);
+                    channel = 0;
+                }
+            } else if ((channel = BTM_AllocateSCN()) == 0) {
+                APPL_TRACE_ERROR("run out of rfc channels");
+                channel = 0;
+            }
+            if (channel != 0) {
+                bta_jv_cb.scn[channel-1] = TRUE;
+                scn = (UINT8) channel;
+            }
+            if (bta_jv_cb.p_dm_cback)
+                bta_jv_cb.p_dm_cback(BTA_JV_GET_SCN_EVT, (tBTA_JV *)&scn,
+                        p_data->alloc_channel.user_data);
+            return;
+        }
+        case BTA_JV_CONN_TYPE_L2CAP:
+            psm = bta_jv_get_free_psm();
+            if (psm == 0) {
+                psm = L2CA_AllocatePSM();
+                APPL_TRACE_DEBUG("%s() returned PSM: 0x%04x", __func__, psm);
+            }
+            break;
+        case BTA_JV_CONN_TYPE_L2CAP_LE:
+            break;
+        default:
+            break;
+    }
+
+    if (bta_jv_cb.p_dm_cback)
+        bta_jv_cb.p_dm_cback(BTA_JV_GET_PSM_EVT, (tBTA_JV *)&psm, p_data->alloc_channel.user_data);
+}
+
+/*******************************************************************************
+**
+** Function     bta_jv_free_scn
+**
+** Description  free a SCN
+**
+** Returns      void
+**
+*******************************************************************************/
+void bta_jv_free_scn(tBTA_JV_MSG *p_data)
+{
+    UINT16   scn = p_data->free_channel.scn;
+
+    switch (p_data->free_channel.type) {
+        case BTA_JV_CONN_TYPE_RFCOMM: {
+            if (scn > 0 && scn <= BTA_JV_MAX_SCN && bta_jv_cb.scn[scn-1])
+            {
+                /* this scn is used by JV */
+                bta_jv_cb.scn[scn-1] = FALSE;
+                BTM_FreeSCN(scn);
+            }
+            break;
+        }
+        case BTA_JV_CONN_TYPE_L2CAP:
+            bta_jv_set_free_psm(scn);
+            break;
+        case BTA_JV_CONN_TYPE_L2CAP_LE:
+            // TODO: Not yet implemented...
+            break;
+        default:
+            break;
+    }
+}
+static inline tBT_UUID shorten_sdp_uuid(const tBT_UUID* u)
+{
+    static uint8_t bt_base_uuid[] =
+       {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x80, 0x00, 0x00, 0x80, 0x5F, 0x9B, 0x34, 0xFB };
+
+    logu("in, uuid:", u->uu.uuid128);
+    APPL_TRACE_DEBUG("uuid len:%d", u->len);
+    if(u->len == 16)
+    {
+        if(memcmp(&u->uu.uuid128[4], &bt_base_uuid[4], 12) == 0)
+        {
+            tBT_UUID su;
+            memset(&su, 0, sizeof(su));
+            if(u->uu.uuid128[0] == 0 && u->uu.uuid128[1] == 0)
+            {
+                su.len = 2;
+                uint16_t u16;
+                memcpy(&u16, &u->uu.uuid128[2], sizeof(u16));
+                su.uu.uuid16 = ntohs(u16);
+                APPL_TRACE_DEBUG("shorten to 16 bits uuid: %x", su.uu.uuid16);
+            }
+            else
+            {
+                su.len = 4;
+                uint32_t u32;
+                memcpy(&u32, &u->uu.uuid128[0], sizeof(u32));
+                su.uu.uuid32 = ntohl(u32);
+                APPL_TRACE_DEBUG("shorten to 32 bits uuid: %x", su.uu.uuid32);
+            }
+            return su;
+        }
+    }
+    APPL_TRACE_DEBUG("cannot shorten none-reserved 128 bits uuid");
+    return *u;
+}
+
+/*******************************************************************************
+**
+** Function     bta_jv_start_discovery_cback
+**
+** Description  Callback for Start Discovery
+**
+** Returns      void
+**
+*******************************************************************************/
+static void bta_jv_start_discovery_cback(UINT16 result, void * user_data)
+{
+    tBTA_JV_STATUS status;
+
+    APPL_TRACE_DEBUG("bta_jv_start_discovery_cback res: 0x%x", result);
+
+    bta_jv_cb.sdp_active = BTA_JV_SDP_ACT_NONE;
+    if(bta_jv_cb.p_dm_cback)
+    {
+        tBTA_JV_DISCOVERY_COMP dcomp;
+        dcomp.scn = 0;
+        status = BTA_JV_FAILURE;
+        if (result == SDP_SUCCESS || result == SDP_DB_FULL)
+        {
+            tSDP_DISC_REC       *p_sdp_rec = NULL;
+            tSDP_PROTOCOL_ELEM  pe;
+            logu("bta_jv_cb.uuid", bta_jv_cb.uuid.uu.uuid128);
+            tBT_UUID su = shorten_sdp_uuid(&bta_jv_cb.uuid);
+            logu("shorten uuid:", su.uu.uuid128);
+            p_sdp_rec = SDP_FindServiceUUIDInDb(p_bta_jv_cfg->p_sdp_db, &su, p_sdp_rec);
+            APPL_TRACE_DEBUG("p_sdp_rec:%p", p_sdp_rec);
+            if (p_sdp_rec && SDP_FindProtocolListElemInRec(p_sdp_rec, UUID_PROTOCOL_RFCOMM, &pe))
+            {
+                dcomp.scn = (UINT8) pe.params[0];
+                status = BTA_JV_SUCCESS;
+            }
+        }
+
+        dcomp.status = status;
+        bta_jv_cb.p_dm_cback(BTA_JV_DISCOVERY_COMP_EVT, (tBTA_JV *)&dcomp, user_data);
+    }
+}
+
+/*******************************************************************************
+**
+** Function     bta_jv_start_discovery
+**
+** Description  Discovers services on a remote device
+**
+** Returns      void
+**
+*******************************************************************************/
+void bta_jv_start_discovery(tBTA_JV_MSG *p_data)
+{
+    tBTA_JV_STATUS status = BTA_JV_FAILURE;
+    APPL_TRACE_DEBUG("bta_jv_start_discovery in, sdp_active:%d", bta_jv_cb.sdp_active);
+    if (bta_jv_cb.sdp_active != BTA_JV_SDP_ACT_NONE)
+    {
+        /* SDP is still in progress */
+        status = BTA_JV_BUSY;
+        if(bta_jv_cb.p_dm_cback)
+            bta_jv_cb.p_dm_cback(BTA_JV_DISCOVERY_COMP_EVT, (tBTA_JV *)&status, p_data->start_discovery.user_data);
+        return;
+    }
+
+    /* init the database/set up the filter */
+    APPL_TRACE_DEBUG("call SDP_InitDiscoveryDb, p_data->start_discovery.num_uuid:%d",
+        p_data->start_discovery.num_uuid);
+    SDP_InitDiscoveryDb (p_bta_jv_cfg->p_sdp_db, p_bta_jv_cfg->sdp_db_size,
+                    p_data->start_discovery.num_uuid, p_data->start_discovery.uuid_list, 0, NULL);
+
+    /* tell SDP to keep the raw data */
+    p_bta_jv_cfg->p_sdp_db->raw_data = p_bta_jv_cfg->p_sdp_raw_data;
+    p_bta_jv_cfg->p_sdp_db->raw_size = p_bta_jv_cfg->sdp_raw_size;
+
+    bta_jv_cb.p_sel_raw_data     = 0;
+    bta_jv_cb.uuid = p_data->start_discovery.uuid_list[0];
+
+    bta_jv_cb.sdp_active = BTA_JV_SDP_ACT_YES;
+    if (!SDP_ServiceSearchAttributeRequest2(p_data->start_discovery.bd_addr,
+                                   p_bta_jv_cfg->p_sdp_db,
+                                   bta_jv_start_discovery_cback, p_data->start_discovery.user_data))
+    {
+        bta_jv_cb.sdp_active = BTA_JV_SDP_ACT_NONE;
+        /* failed to start SDP. report the failure right away */
+        if(bta_jv_cb.p_dm_cback)
+            bta_jv_cb.p_dm_cback(BTA_JV_DISCOVERY_COMP_EVT, (tBTA_JV *)&status, p_data->start_discovery.user_data);
+    }
+    /*
+    else report the result when the cback is called
+    */
+}
+
+/*******************************************************************************
+**
+** Function     bta_jv_create_record
+**
+** Description  Create an SDP record with the given attributes
+**
+** Returns      void
+**
+*******************************************************************************/
+void bta_jv_create_record(tBTA_JV_MSG *p_data)
+{
+    tBTA_JV_API_CREATE_RECORD *cr = &(p_data->create_record);
+    tBTA_JV_CREATE_RECORD   evt_data;
+    evt_data.status = BTA_JV_SUCCESS;
+    if(bta_jv_cb.p_dm_cback)
+        //callback user immediately to create his own sdp record in stack thread context
+        bta_jv_cb.p_dm_cback(BTA_JV_CREATE_RECORD_EVT, (tBTA_JV *)&evt_data, cr->user_data);
+}
+
+/*******************************************************************************
+**
+** Function     bta_jv_delete_record
+**
+** Description  Delete an SDP record
+**
+**
+** Returns      void
+**
+*******************************************************************************/
+void bta_jv_delete_record(tBTA_JV_MSG *p_data)
+{
+    tBTA_JV_API_ADD_ATTRIBUTE *dr = &(p_data->add_attr);
+    if(dr->handle)
+    {
+        /* this is a record created by btif layer*/
+        SDP_DeleteRecord(dr->handle);
+    }
+}
+
+/*******************************************************************************
+**
+** Function     bta_jv_l2cap_client_cback
+**
+** Description  handles the l2cap client events
+**
+** Returns      void
+**
+*******************************************************************************/
+static void bta_jv_l2cap_client_cback(UINT16 gap_handle, UINT16 event)
+{
+    tBTA_JV_L2C_CB  *p_cb = &bta_jv_cb.l2c_cb[gap_handle];
+    tBTA_JV     evt_data;
+
+    if (gap_handle >= BTA_JV_MAX_L2C_CONN && !p_cb->p_cback)
+        return;
+
+    APPL_TRACE_DEBUG( "%s: %d evt:x%x",__func__, gap_handle, event);
+    evt_data.l2c_open.status = BTA_JV_SUCCESS;
+    evt_data.l2c_open.handle = gap_handle;
+
+    switch (event)
+    {
+    case GAP_EVT_CONN_OPENED:
+        bdcpy(evt_data.l2c_open.rem_bda, GAP_ConnGetRemoteAddr(gap_handle));
+        evt_data.l2c_open.tx_mtu = GAP_ConnGetRemMtuSize(gap_handle);
+        p_cb->state = BTA_JV_ST_CL_OPEN;
+        p_cb->p_cback(BTA_JV_L2CAP_OPEN_EVT, &evt_data, p_cb->user_data);
+        break;
+
+    case GAP_EVT_CONN_CLOSED:
+        p_cb->state = BTA_JV_ST_NONE;
+        bta_jv_free_sec_id(&p_cb->sec_id);
+        evt_data.l2c_close.async = TRUE;
+        p_cb->p_cback(BTA_JV_L2CAP_CLOSE_EVT, &evt_data, p_cb->user_data);
+        p_cb->p_cback = NULL;
+        break;
+
+    case GAP_EVT_CONN_DATA_AVAIL:
+        evt_data.data_ind.handle = gap_handle;
+        /* Reset idle timer to avoid requesting sniff mode while receiving data */
+        bta_jv_pm_conn_busy(p_cb->p_pm_cb);
+        p_cb->p_cback(BTA_JV_L2CAP_DATA_IND_EVT, &evt_data, p_cb->user_data);
+        bta_jv_pm_conn_idle(p_cb->p_pm_cb);
+        break;
+
+    case GAP_EVT_TX_EMPTY:
+        bta_jv_pm_conn_idle(p_cb->p_pm_cb);
+        break;
+
+    case GAP_EVT_CONN_CONGESTED:
+    case GAP_EVT_CONN_UNCONGESTED:
+        p_cb->cong = (event == GAP_EVT_CONN_CONGESTED) ? TRUE : FALSE;
+        evt_data.l2c_cong.cong = p_cb->cong;
+        p_cb->p_cback(BTA_JV_L2CAP_CONG_EVT, &evt_data, p_cb->user_data);
+        break;
+
+    default:
+        break;
+    }
+}
+
+/*******************************************************************************
+**
+** Function     bta_jv_l2cap_connect
+**
+** Description  makes an l2cap client connection
+**
+** Returns      void
+**
+*******************************************************************************/
+void bta_jv_l2cap_connect(tBTA_JV_MSG *p_data)
+{
+    tBTA_JV_L2C_CB      *p_cb;
+    tBTA_JV_L2CAP_CL_INIT  evt_data;
+    UINT16  handle=GAP_INVALID_HANDLE;
+    UINT8   sec_id;
+    tL2CAP_CFG_INFO cfg;
+    tBTA_JV_API_L2CAP_CONNECT *cc = &(p_data->l2cap_connect);
+    UINT8 chan_mode_mask = GAP_FCR_CHAN_OPT_BASIC;
+    tL2CAP_ERTM_INFO    *ertm_info = NULL;
+
+    memset(&cfg, 0, sizeof(tL2CAP_CFG_INFO));
+
+    if (cc->has_cfg == TRUE)
+    {
+        cfg = cc->cfg;
+        if (cfg.fcr_present && cfg.fcr.mode == L2CAP_FCR_ERTM_MODE) {
+            chan_mode_mask = GAP_FCR_CHAN_OPT_ERTM;
+        }
+    }
+
+    if (cc->has_ertm_info == TRUE)
+    {
+        ertm_info = &(cc->ertm_info);
+    }
+
+    /* We need to use this value for MTU to be able to handle cases where cfg is not set in req. */
+    cfg.mtu_present = TRUE;
+    cfg.mtu = cc->rx_mtu;
+
+    /* TODO: DM role manager
+    L2CA_SetDesireRole(cc->role);
+    */
+
+    sec_id = bta_jv_alloc_sec_id();
+    evt_data.sec_id = sec_id;
+    evt_data.status = BTA_JV_FAILURE;
+
+    if (sec_id)
+    {
+        /* PSM checking is not required for LE COC */
+        if ((cc->type != BTA_JV_CONN_TYPE_L2CAP) || (bta_jv_check_psm(cc->remote_psm))) /* allowed */
+        {
+            if ((handle = GAP_ConnOpen("", sec_id, 0, cc->peer_bd_addr, cc->remote_psm,
+                &cfg, ertm_info, cc->sec_mask, chan_mode_mask,
+                bta_jv_l2cap_client_cback, cc->type)) != GAP_INVALID_HANDLE )
+            {
+                evt_data.status = BTA_JV_SUCCESS;
+            }
+        }
+    }
+
+    if (evt_data.status == BTA_JV_SUCCESS)
+    {
+        p_cb = &bta_jv_cb.l2c_cb[handle];
+        p_cb->handle = handle;
+        p_cb->p_cback = cc->p_cback;
+        p_cb->user_data = cc->user_data;
+        p_cb->psm = 0;  /* not a server */
+        p_cb->sec_id = sec_id;
+        p_cb->state = BTA_JV_ST_CL_OPENING;
+    }
+    else
+    {
+        bta_jv_free_sec_id(&sec_id);
+    }
+
+    evt_data.handle = handle;
+    cc->p_cback(BTA_JV_L2CAP_CL_INIT_EVT, (tBTA_JV *)&evt_data, cc->user_data);
+}
+
+
+/*******************************************************************************
+**
+** Function     bta_jv_l2cap_close
+**
+** Description  Close an L2CAP client connection
+**
+** Returns      void
+**
+*******************************************************************************/
+void bta_jv_l2cap_close(tBTA_JV_MSG *p_data)
+{
+    tBTA_JV_L2CAP_CLOSE  evt_data;
+    tBTA_JV_API_L2CAP_CLOSE *cc = &(p_data->l2cap_close);
+    tBTA_JV_L2CAP_CBACK *p_cback = cc->p_cb->p_cback;
+    void *user_data = cc->p_cb->user_data;
+
+    evt_data.handle = cc->handle;
+    evt_data.status = bta_jv_free_l2c_cb(cc->p_cb);
+    evt_data.async = FALSE;
+
+    if (p_cback)
+        p_cback(BTA_JV_L2CAP_CLOSE_EVT, (tBTA_JV *)&evt_data, user_data);
+}
+
+/*******************************************************************************
+**
+** Function         bta_jv_l2cap_server_cback
+**
+** Description      handles the l2cap server callback
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_jv_l2cap_server_cback(UINT16 gap_handle, UINT16 event)
+{
+    tBTA_JV_L2C_CB  *p_cb = &bta_jv_cb.l2c_cb[gap_handle];
+    tBTA_JV evt_data;
+    tBTA_JV_L2CAP_CBACK *p_cback;
+    void *user_data;
+
+    if (gap_handle >= BTA_JV_MAX_L2C_CONN && !p_cb->p_cback)
+        return;
+
+    APPL_TRACE_DEBUG( "%s: %d evt:x%x", __func__, gap_handle, event);
+    evt_data.l2c_open.status = BTA_JV_SUCCESS;
+    evt_data.l2c_open.handle = gap_handle;
+
+    switch (event)
+    {
+    case GAP_EVT_CONN_OPENED:
+        bdcpy(evt_data.l2c_open.rem_bda, GAP_ConnGetRemoteAddr(gap_handle));
+        evt_data.l2c_open.tx_mtu = GAP_ConnGetRemMtuSize(gap_handle);
+        p_cb->state = BTA_JV_ST_SR_OPEN;
+        p_cb->p_cback(BTA_JV_L2CAP_OPEN_EVT, &evt_data, p_cb->user_data);
+        break;
+
+    case GAP_EVT_CONN_CLOSED:
+        evt_data.l2c_close.async = TRUE;
+        evt_data.l2c_close.handle = p_cb->handle;
+        p_cback = p_cb->p_cback;
+        user_data = p_cb->user_data;
+        evt_data.l2c_close.status = bta_jv_free_l2c_cb(p_cb);
+        p_cback(BTA_JV_L2CAP_CLOSE_EVT, &evt_data, user_data);
+        break;
+
+    case GAP_EVT_CONN_DATA_AVAIL:
+        evt_data.data_ind.handle = gap_handle;
+        /* Reset idle timer to avoid requesting sniff mode while receiving data */
+        bta_jv_pm_conn_busy(p_cb->p_pm_cb);
+        p_cb->p_cback(BTA_JV_L2CAP_DATA_IND_EVT, &evt_data, p_cb->user_data);
+        bta_jv_pm_conn_idle(p_cb->p_pm_cb);
+        break;
+
+    case GAP_EVT_TX_EMPTY:
+        bta_jv_pm_conn_idle(p_cb->p_pm_cb);
+        break;
+
+    case GAP_EVT_CONN_CONGESTED:
+    case GAP_EVT_CONN_UNCONGESTED:
+        p_cb->cong = (event == GAP_EVT_CONN_CONGESTED) ? TRUE : FALSE;
+        evt_data.l2c_cong.cong = p_cb->cong;
+        p_cb->p_cback(BTA_JV_L2CAP_CONG_EVT, &evt_data, p_cb->user_data);
+        break;
+
+    default:
+        break;
+    }
+}
+
+/*******************************************************************************
+**
+** Function     bta_jv_l2cap_start_server
+**
+** Description  starts an L2CAP server
+**
+** Returns      void
+**
+*******************************************************************************/
+void bta_jv_l2cap_start_server(tBTA_JV_MSG *p_data)
+{
+    tBTA_JV_L2C_CB      *p_cb;
+    UINT8   sec_id;
+    UINT16  handle;
+    tL2CAP_CFG_INFO cfg;
+    tBTA_JV_L2CAP_START evt_data;
+    tBTA_JV_API_L2CAP_SERVER *ls = &(p_data->l2cap_server);
+    UINT8 chan_mode_mask = GAP_FCR_CHAN_OPT_BASIC;
+    tL2CAP_ERTM_INFO    *ertm_info = NULL;
+
+    memset(&cfg, 0, sizeof(tL2CAP_CFG_INFO));
+
+    if (ls->has_cfg == TRUE) {
+        cfg = ls->cfg;
+        if (cfg.fcr_present && cfg.fcr.mode == L2CAP_FCR_ERTM_MODE) {
+            chan_mode_mask = GAP_FCR_CHAN_OPT_ERTM;
+        }
+    }
+
+    if (ls->has_ertm_info == TRUE) {
+        ertm_info = &(ls->ertm_info);
+    }
+
+    //FIX: MTU=0 means not present
+    if (ls->rx_mtu >0)
+    {
+        cfg.mtu_present = TRUE;
+        cfg.mtu = ls->rx_mtu;
+    }
+    else
+    {
+        cfg.mtu_present = FALSE;
+        cfg.mtu = 0;
+    }
+
+    /* TODO DM role manager
+    L2CA_SetDesireRole(ls->role);
+    */
+
+    sec_id = bta_jv_alloc_sec_id();
+    /* PSM checking is not required for LE COC */
+    if (0 == sec_id || ((ls->type == BTA_JV_CONN_TYPE_L2CAP) && (FALSE == bta_jv_check_psm(ls->local_psm))) ||
+        (handle = GAP_ConnOpen("JV L2CAP", sec_id, 1, 0, ls->local_psm, &cfg, ertm_info,
+            ls->sec_mask, chan_mode_mask, bta_jv_l2cap_server_cback, ls->type)) == GAP_INVALID_HANDLE)
+    {
+        bta_jv_free_sec_id(&sec_id);
+        evt_data.status = BTA_JV_FAILURE;
+    }
+    else
+    {
+        p_cb = &bta_jv_cb.l2c_cb[handle];
+        evt_data.status = BTA_JV_SUCCESS;
+        evt_data.handle = handle;
+        evt_data.sec_id = sec_id;
+        p_cb->p_cback = ls->p_cback;
+        p_cb->user_data = ls->user_data;
+        p_cb->handle = handle;
+        p_cb->sec_id = sec_id;
+        p_cb->state = BTA_JV_ST_SR_LISTEN;
+        p_cb->psm = ls->local_psm;
+    }
+
+    ls->p_cback(BTA_JV_L2CAP_START_EVT, (tBTA_JV *)&evt_data, ls->user_data);
+}
+
+/*******************************************************************************
+**
+** Function     bta_jv_l2cap_stop_server
+**
+** Description  stops an L2CAP server
+**
+** Returns      void
+**
+*******************************************************************************/
+void bta_jv_l2cap_stop_server(tBTA_JV_MSG *p_data)
+{
+    tBTA_JV_L2C_CB      *p_cb;
+    tBTA_JV_L2CAP_CLOSE  evt_data;
+    tBTA_JV_API_L2CAP_SERVER *ls = &(p_data->l2cap_server);
+    tBTA_JV_L2CAP_CBACK *p_cback;
+    void *user_data;
+    for (int i = 0; i < BTA_JV_MAX_L2C_CONN; i++)
+    {
+        if (bta_jv_cb.l2c_cb[i].psm == ls->local_psm)
+        {
+            p_cb = &bta_jv_cb.l2c_cb[i];
+            p_cback = p_cb->p_cback;
+            user_data = p_cb->user_data;
+            evt_data.handle = p_cb->handle;
+            evt_data.status = bta_jv_free_l2c_cb(p_cb);
+            evt_data.async = FALSE;
+            p_cback(BTA_JV_L2CAP_CLOSE_EVT, (tBTA_JV *)&evt_data, user_data);
+            break;
+        }
+    }
+}
+
+
+
+/*******************************************************************************
+**
+** Function     bta_jv_l2cap_read
+**
+** Description  Read data from an L2CAP connection
+**
+** Returns      void
+**
+*******************************************************************************/
+void bta_jv_l2cap_read(tBTA_JV_MSG *p_data)
+{
+    tBTA_JV_L2CAP_READ evt_data;
+    tBTA_JV_API_L2CAP_READ *rc = &(p_data->l2cap_read);
+
+    evt_data.status = BTA_JV_FAILURE;
+    evt_data.handle = rc->handle;
+    evt_data.req_id = rc->req_id;
+    evt_data.p_data = rc->p_data;
+    evt_data.len    = 0;
+
+    if (BT_PASS == GAP_ConnReadData(rc->handle, rc->p_data, rc->len, &evt_data.len))
+    {
+        evt_data.status = BTA_JV_SUCCESS;
+    }
+
+    rc->p_cback(BTA_JV_L2CAP_READ_EVT, (tBTA_JV *)&evt_data, rc->user_data);
+}
+
+
+/*******************************************************************************
+**
+** Function     bta_jv_l2cap_write
+**
+** Description  Write data to an L2CAP connection
+**
+** Returns      void
+**
+*******************************************************************************/
+void bta_jv_l2cap_write(tBTA_JV_MSG *p_data)
+{
+    tBTA_JV_L2CAP_WRITE evt_data;
+    tBTA_JV_API_L2CAP_WRITE *ls = &(p_data->l2cap_write);
+
+    /* As we check this callback exists before the tBTA_JV_API_L2CAP_WRITE can be send through the
+     * API this check should not be needed.
+     * But the API is not designed to be used (safely at least) in a multi-threaded scheduler, hence
+     * if the peer device disconnects the l2cap link after the API is called, but before this
+     * message is handled, the ->p_cback will be cleared at this point. At first glanch this seems
+     * highly unlikely, but for all obex-profiles with two channels connected - e.g. MAP, this
+     * happens around 1 of 4 disconnects, as a disconnect on the server channel causes a disconnect
+     * to be send on the client (notification) channel, but at the peer typically disconnects both
+     * the OBEX disconnect request crosses the incoming l2cap disconnect.
+     * If p_cback is cleared, we simply discard the data.
+     * RISK: The caller must handle any cleanup based on another signal than BTA_JV_L2CAP_WRITE_EVT,
+     *       which is typically not possible, as the pointer to the allocated buffer is stored
+     *       in this message, and can therefore not be freed, hence we have a mem-leak-by-design.*/
+    if (ls->p_cb->p_cback != NULL) {
+        evt_data.status = BTA_JV_FAILURE;
+        evt_data.handle = ls->handle;
+        evt_data.req_id = ls->req_id;
+        evt_data.cong   = ls->p_cb->cong;
+        evt_data.len    = 0;
+        bta_jv_pm_conn_busy(ls->p_cb->p_pm_cb);
+        if (!evt_data.cong &&
+           BT_PASS == GAP_ConnWriteData(ls->handle, ls->p_data, ls->len, &evt_data.len))
+        {
+           evt_data.status = BTA_JV_SUCCESS;
+        }
+        ls->p_cb->p_cback(BTA_JV_L2CAP_WRITE_EVT, (tBTA_JV *)&evt_data, ls->user_data);
+    } else {
+        /* As this pointer is checked in the API function, this occurs only when the channel is
+         * disconnected after the API function is called, but before the message is handled. */
+        APPL_TRACE_ERROR("%s() ls->p_cb->p_cback == NULL", __func__);
+    }
+}
+
+/*******************************************************************************
+**
+** Function     bta_jv_l2cap_write_fixed
+**
+** Description  Write data to an L2CAP connection using Fixed channels
+**
+** Returns      void
+**
+*******************************************************************************/
+void bta_jv_l2cap_write_fixed(tBTA_JV_MSG *p_data)
+{
+    tBTA_JV_L2CAP_WRITE_FIXED evt_data;
+    tBTA_JV_API_L2CAP_WRITE_FIXED *ls = &(p_data->l2cap_write_fixed);
+    BT_HDR *msg = (BT_HDR *)osi_malloc(sizeof(BT_HDR) + ls->len + L2CAP_MIN_OFFSET);
+
+    evt_data.status  = BTA_JV_FAILURE;
+    evt_data.channel = ls->channel;
+    memcpy(evt_data.addr, ls->addr, sizeof(evt_data.addr));
+    evt_data.req_id  = ls->req_id;
+    evt_data.len     = 0;
+
+
+    memcpy(((uint8_t*)(msg + 1)) + L2CAP_MIN_OFFSET, ls->p_data, ls->len);
+    msg->len = ls->len;
+    msg->offset = L2CAP_MIN_OFFSET;
+
+    L2CA_SendFixedChnlData(ls->channel, ls->addr, msg);
+
+    ls->p_cback(BTA_JV_L2CAP_WRITE_FIXED_EVT, (tBTA_JV *)&evt_data, ls->user_data);
+}
+
+/*******************************************************************************
+**
+** Function     bta_jv_port_data_co_cback
+**
+** Description  port data callback function of rfcomm
+**              connections
+**
+** Returns      void
+**
+*******************************************************************************/
+static int bta_jv_port_data_co_cback(UINT16 port_handle, UINT8 *buf, UINT16 len, int type)
+{
+    tBTA_JV_RFC_CB  *p_cb = bta_jv_rfc_port_to_cb(port_handle);
+    tBTA_JV_PCB     *p_pcb = bta_jv_rfc_port_to_pcb(port_handle);
+    APPL_TRACE_DEBUG("%s, p_cb:%p, p_pcb:%p, len:%d, type:%d", __func__, p_cb, p_pcb, len, type);
+    if (p_pcb != NULL)
+    {
+        switch(type)
+        {
+            case DATA_CO_CALLBACK_TYPE_INCOMING:
+                return bta_co_rfc_data_incoming(p_pcb->user_data, (BT_HDR*)buf);
+            case DATA_CO_CALLBACK_TYPE_OUTGOING_SIZE:
+                return bta_co_rfc_data_outgoing_size(p_pcb->user_data, (int*)buf);
+            case DATA_CO_CALLBACK_TYPE_OUTGOING:
+                return bta_co_rfc_data_outgoing(p_pcb->user_data, buf, len);
+            default:
+                APPL_TRACE_ERROR("unknown callout type:%d", type);
+                break;
+        }
+    }
+    return 0;
+}
+
+/*******************************************************************************
+**
+** Function     bta_jv_port_mgmt_cl_cback
+**
+** Description  callback for port mamangement function of rfcomm
+**              client connections
+**
+** Returns      void
+**
+*******************************************************************************/
+static void bta_jv_port_mgmt_cl_cback(UINT32 code, UINT16 port_handle)
+{
+    tBTA_JV_RFC_CB  *p_cb = bta_jv_rfc_port_to_cb(port_handle);
+    tBTA_JV_PCB     *p_pcb = bta_jv_rfc_port_to_pcb(port_handle);
+    tBTA_JV evt_data;
+    BD_ADDR rem_bda;
+    UINT16 lcid;
+    tBTA_JV_RFCOMM_CBACK *p_cback;  /* the callback function */
+
+    APPL_TRACE_DEBUG( "bta_jv_port_mgmt_cl_cback:code:%d, port_handle%d", code, port_handle);
+    if(NULL == p_cb || NULL == p_cb->p_cback)
+        return;
+
+    APPL_TRACE_DEBUG( "bta_jv_port_mgmt_cl_cback code=%d port_handle:%d handle:%d",
+        code, port_handle, p_cb->handle);
+
+    PORT_CheckConnection(port_handle, rem_bda, &lcid);
+
+    if(code == PORT_SUCCESS)
+    {
+        evt_data.rfc_open.handle = p_cb->handle;
+        evt_data.rfc_open.status = BTA_JV_SUCCESS;
+        bdcpy(evt_data.rfc_open.rem_bda, rem_bda);
+        p_pcb->state = BTA_JV_ST_CL_OPEN;
+        p_cb->p_cback(BTA_JV_RFCOMM_OPEN_EVT, &evt_data, p_pcb->user_data);
+    }
+    else
+    {
+        evt_data.rfc_close.handle = p_cb->handle;
+        evt_data.rfc_close.status = BTA_JV_FAILURE;
+        evt_data.rfc_close.port_status = code;
+        evt_data.rfc_close.async = TRUE;
+        if (p_pcb->state == BTA_JV_ST_CL_CLOSING)
+        {
+            evt_data.rfc_close.async = FALSE;
+        }
+        //p_pcb->state = BTA_JV_ST_NONE;
+        //p_pcb->cong = FALSE;
+        p_cback = p_cb->p_cback;
+        p_cback(BTA_JV_RFCOMM_CLOSE_EVT, &evt_data, p_pcb->user_data);
+        //bta_jv_free_rfc_cb(p_cb, p_pcb);
+    }
+
+}
+
+/*******************************************************************************
+**
+** Function     bta_jv_port_event_cl_cback
+**
+** Description  Callback for RFCOMM client port events
+**
+** Returns      void
+**
+*******************************************************************************/
+static void bta_jv_port_event_cl_cback(UINT32 code, UINT16 port_handle)
+{
+    tBTA_JV_RFC_CB  *p_cb = bta_jv_rfc_port_to_cb(port_handle);
+    tBTA_JV_PCB     *p_pcb = bta_jv_rfc_port_to_pcb(port_handle);
+    tBTA_JV evt_data;
+
+    APPL_TRACE_DEBUG( "bta_jv_port_event_cl_cback:%d", port_handle);
+    if (NULL == p_cb || NULL == p_cb->p_cback)
+        return;
+
+    APPL_TRACE_DEBUG( "bta_jv_port_event_cl_cback code=x%x port_handle:%d handle:%d",
+        code, port_handle, p_cb->handle);
+    if (code & PORT_EV_RXCHAR)
+    {
+        evt_data.data_ind.handle = p_cb->handle;
+        p_cb->p_cback(BTA_JV_RFCOMM_DATA_IND_EVT, &evt_data, p_pcb->user_data);
+    }
+
+    if (code & PORT_EV_FC)
+    {
+        p_pcb->cong = (code & PORT_EV_FCS) ? FALSE : TRUE;
+        evt_data.rfc_cong.cong = p_pcb->cong;
+        evt_data.rfc_cong.handle = p_cb->handle;
+        evt_data.rfc_cong.status = BTA_JV_SUCCESS;
+        p_cb->p_cback(BTA_JV_RFCOMM_CONG_EVT, &evt_data, p_pcb->user_data);
+    }
+
+    if (code & PORT_EV_TXEMPTY)
+    {
+        bta_jv_pm_conn_idle(p_pcb->p_pm_cb);
+    }
+}
+
+/*******************************************************************************
+**
+** Function     bta_jv_rfcomm_connect
+**
+** Description  Client initiates an RFCOMM connection
+**
+** Returns      void
+**
+*******************************************************************************/
+void bta_jv_rfcomm_connect(tBTA_JV_MSG *p_data)
+{
+    UINT16 handle = 0;
+    UINT32 event_mask = BTA_JV_RFC_EV_MASK;
+    tPORT_STATE port_state;
+    UINT8   sec_id = 0;
+    tBTA_JV_RFC_CB  *p_cb = NULL;
+    tBTA_JV_PCB     *p_pcb;
+    tBTA_JV_API_RFCOMM_CONNECT *cc = &(p_data->rfcomm_connect);
+    tBTA_JV_RFCOMM_CL_INIT evt_data;
+
+    /* TODO DM role manager
+    L2CA_SetDesireRole(cc->role);
+    */
+
+    sec_id = bta_jv_alloc_sec_id();
+    memset(&evt_data, 0, sizeof(evt_data));
+    evt_data.sec_id = sec_id;
+    evt_data.status = BTA_JV_SUCCESS;
+    if (0 == sec_id ||
+        BTM_SetSecurityLevel(TRUE, "", sec_id,  cc->sec_mask, BT_PSM_RFCOMM,
+                BTM_SEC_PROTO_RFCOMM, cc->remote_scn) == FALSE)
+    {
+        evt_data.status = BTA_JV_FAILURE;
+        APPL_TRACE_ERROR("sec_id:%d is zero or BTM_SetSecurityLevel failed, remote_scn:%d", sec_id, cc->remote_scn);
+    }
+
+    if (evt_data.status == BTA_JV_SUCCESS &&
+        RFCOMM_CreateConnection(UUID_SERVCLASS_SERIAL_PORT, cc->remote_scn, FALSE,
+        BTA_JV_DEF_RFC_MTU, cc->peer_bd_addr, &handle, bta_jv_port_mgmt_cl_cback) != PORT_SUCCESS)
+    {
+        APPL_TRACE_ERROR("bta_jv_rfcomm_connect, RFCOMM_CreateConnection failed");
+        evt_data.status = BTA_JV_FAILURE;
+    }
+    if (evt_data.status == BTA_JV_SUCCESS)
+    {
+        p_cb = bta_jv_alloc_rfc_cb(handle, &p_pcb);
+        if(p_cb)
+        {
+            p_cb->p_cback = cc->p_cback;
+            p_cb->sec_id = sec_id;
+            p_cb->scn = 0;
+            p_pcb->state = BTA_JV_ST_CL_OPENING;
+            p_pcb->user_data = cc->user_data;
+            evt_data.use_co = TRUE;
+
+            PORT_SetEventCallback(handle, bta_jv_port_event_cl_cback);
+            PORT_SetEventMask(handle, event_mask);
+            PORT_SetDataCOCallback (handle, bta_jv_port_data_co_cback);
+
+            PORT_GetState(handle, &port_state);
+
+            port_state.fc_type = (PORT_FC_CTS_ON_INPUT | PORT_FC_CTS_ON_OUTPUT);
+
+            /* coverity[uninit_use_in_call]
+               FALSE-POSITIVE: port_state is initialized at PORT_GetState() */
+            PORT_SetState(handle, &port_state);
+
+            evt_data.handle = p_cb->handle;
+        }
+        else
+        {
+            evt_data.status = BTA_JV_FAILURE;
+            APPL_TRACE_ERROR("run out of rfc control block");
+        }
+    }
+    cc->p_cback(BTA_JV_RFCOMM_CL_INIT_EVT, (tBTA_JV *)&evt_data, cc->user_data);
+    if(evt_data.status == BTA_JV_FAILURE)
+    {
+        if(sec_id)
+            bta_jv_free_sec_id(&sec_id);
+        if(handle)
+            RFCOMM_RemoveConnection(handle);
+    }
+ }
+
+static int find_rfc_pcb(void* user_data, tBTA_JV_RFC_CB **cb, tBTA_JV_PCB **pcb)
+{
+    *cb = NULL;
+    *pcb = NULL;
+    int i;
+    for (i = 0; i < MAX_RFC_PORTS; i++)
+    {
+        UINT32 rfc_handle = bta_jv_cb.port_cb[i].handle & BTA_JV_RFC_HDL_MASK;
+        rfc_handle &= ~BTA_JV_RFCOMM_MASK;
+        if (rfc_handle && bta_jv_cb.port_cb[i].user_data == user_data)
+        {
+            *pcb = &bta_jv_cb.port_cb[i];
+            *cb = &bta_jv_cb.rfc_cb[rfc_handle - 1];
+            APPL_TRACE_DEBUG("find_rfc_pcb(): FOUND rfc_cb_handle 0x%x, port.jv_handle:"
+                    " 0x%x, state: %d, rfc_cb->handle: 0x%x", rfc_handle, (*pcb)->handle,
+                    (*pcb)->state, (*cb)->handle);
+            return 1;
+        }
+    }
+    APPL_TRACE_DEBUG("find_rfc_pcb: cannot find rfc_cb from user data: %u", PTR_TO_UINT(user_data));
+    return 0;
+}
+
+/*******************************************************************************
+**
+** Function     bta_jv_rfcomm_close
+**
+** Description  Close an RFCOMM connection
+**
+** Returns      void
+**
+*******************************************************************************/
+void bta_jv_rfcomm_close(tBTA_JV_MSG *p_data)
+{
+    tBTA_JV_API_RFCOMM_CLOSE *cc = &(p_data->rfcomm_close);
+    tBTA_JV_RFC_CB           *p_cb = NULL;
+    tBTA_JV_PCB              *p_pcb = NULL;
+    APPL_TRACE_DEBUG("bta_jv_rfcomm_close, rfc handle:%d", cc->handle);
+    if (!cc->handle)
+    {
+        APPL_TRACE_ERROR("bta_jv_rfcomm_close, rfc handle is null");
+        return;
+    }
+
+    void* user_data = cc->user_data;
+    if (!find_rfc_pcb(user_data, &p_cb, &p_pcb))
+        return;
+    bta_jv_free_rfc_cb(p_cb, p_pcb);
+    APPL_TRACE_DEBUG("bta_jv_rfcomm_close: sec id in use:%d, rfc_cb in use:%d",
+                get_sec_id_used(), get_rfc_cb_used());
+}
+
+/*******************************************************************************
+**
+** Function     bta_jv_port_mgmt_sr_cback
+**
+** Description  callback for port mamangement function of rfcomm
+**              server connections
+**
+** Returns      void
+**
+*******************************************************************************/
+static void bta_jv_port_mgmt_sr_cback(UINT32 code, UINT16 port_handle)
+{
+    tBTA_JV_PCB     *p_pcb = bta_jv_rfc_port_to_pcb(port_handle);
+    tBTA_JV_RFC_CB  *p_cb = bta_jv_rfc_port_to_cb(port_handle);
+    tBTA_JV evt_data;
+    BD_ADDR rem_bda;
+    UINT16 lcid;
+    APPL_TRACE_DEBUG("bta_jv_port_mgmt_sr_cback, code:%d, port_handle:%d", code, port_handle);
+    if (NULL == p_cb || NULL == p_cb->p_cback)
+    {
+        APPL_TRACE_ERROR("bta_jv_port_mgmt_sr_cback, p_cb:%p, p_cb->p_cback%p",
+                p_cb, p_cb ? p_cb->p_cback : NULL);
+        return;
+    }
+    void *user_data = p_pcb->user_data;
+    APPL_TRACE_DEBUG( "bta_jv_port_mgmt_sr_cback code=%d port_handle:0x%x handle:0x%x, p_pcb:%p, user:%d",
+        code, port_handle, p_cb->handle, p_pcb, p_pcb->user_data);
+
+    PORT_CheckConnection(port_handle, rem_bda, &lcid);
+    int failed = TRUE;
+    if (code == PORT_SUCCESS)
+    {
+        evt_data.rfc_srv_open.handle = p_pcb->handle;
+        evt_data.rfc_srv_open.status = BTA_JV_SUCCESS;
+        bdcpy(evt_data.rfc_srv_open.rem_bda, rem_bda);
+        tBTA_JV_PCB *p_pcb_new_listen  = bta_jv_add_rfc_port(p_cb, p_pcb);
+        if (p_pcb_new_listen)
+        {
+            evt_data.rfc_srv_open.new_listen_handle = p_pcb_new_listen->handle;
+            p_pcb_new_listen->user_data = p_cb->p_cback(BTA_JV_RFCOMM_SRV_OPEN_EVT, &evt_data, user_data);
+            APPL_TRACE_DEBUG("PORT_SUCCESS: curr_sess:%d, max_sess:%d", p_cb->curr_sess, p_cb->max_sess);
+            failed = FALSE;
+        }
+        else
+            APPL_TRACE_ERROR("bta_jv_add_rfc_port failed to create new listen port");
+    }
+    if (failed)
+    {
+        evt_data.rfc_close.handle = p_cb->handle;
+        evt_data.rfc_close.status = BTA_JV_FAILURE;
+        evt_data.rfc_close.async = TRUE;
+        evt_data.rfc_close.port_status = code;
+        p_pcb->cong = FALSE;
+
+        tBTA_JV_RFCOMM_CBACK    *p_cback = p_cb->p_cback;
+        APPL_TRACE_DEBUG("PORT_CLOSED before BTA_JV_RFCOMM_CLOSE_EVT: curr_sess:%d, max_sess:%d",
+                            p_cb->curr_sess, p_cb->max_sess);
+        if (BTA_JV_ST_SR_CLOSING == p_pcb->state)
+        {
+            evt_data.rfc_close.async = FALSE;
+            evt_data.rfc_close.status = BTA_JV_SUCCESS;
+        }
+        //p_pcb->state = BTA_JV_ST_NONE;
+        p_cback(BTA_JV_RFCOMM_CLOSE_EVT, &evt_data, user_data);
+        //bta_jv_free_rfc_cb(p_cb, p_pcb);
+
+        APPL_TRACE_DEBUG("PORT_CLOSED after BTA_JV_RFCOMM_CLOSE_EVT: curr_sess:%d, max_sess:%d",
+                p_cb->curr_sess, p_cb->max_sess);
+     }
+}
+
+/*******************************************************************************
+**
+** Function     bta_jv_port_event_sr_cback
+**
+** Description  Callback for RFCOMM server port events
+**
+** Returns      void
+**
+*******************************************************************************/
+static void bta_jv_port_event_sr_cback(UINT32 code, UINT16 port_handle)
+{
+    tBTA_JV_PCB     *p_pcb = bta_jv_rfc_port_to_pcb(port_handle);
+    tBTA_JV_RFC_CB  *p_cb = bta_jv_rfc_port_to_cb(port_handle);
+    tBTA_JV evt_data;
+
+    if (NULL == p_cb || NULL == p_cb->p_cback)
+        return;
+
+    APPL_TRACE_DEBUG( "bta_jv_port_event_sr_cback code=x%x port_handle:%d handle:%d",
+        code, port_handle, p_cb->handle);
+
+    void *user_data = p_pcb->user_data;
+    if (code & PORT_EV_RXCHAR)
+    {
+        evt_data.data_ind.handle = p_cb->handle;
+        p_cb->p_cback(BTA_JV_RFCOMM_DATA_IND_EVT, &evt_data, user_data);
+    }
+
+    if (code & PORT_EV_FC)
+    {
+        p_pcb->cong = (code & PORT_EV_FCS) ? FALSE : TRUE;
+        evt_data.rfc_cong.cong = p_pcb->cong;
+        evt_data.rfc_cong.handle = p_cb->handle;
+        evt_data.rfc_cong.status = BTA_JV_SUCCESS;
+        p_cb->p_cback(BTA_JV_RFCOMM_CONG_EVT, &evt_data, user_data);
+    }
+
+    if (code & PORT_EV_TXEMPTY)
+    {
+        bta_jv_pm_conn_idle(p_pcb->p_pm_cb);
+    }
+}
+
+/*******************************************************************************
+**
+** Function     bta_jv_add_rfc_port
+**
+** Description  add a port for server when the existing posts is open
+**
+** Returns   return a pointer to tBTA_JV_PCB just added
+**
+*******************************************************************************/
+static tBTA_JV_PCB * bta_jv_add_rfc_port(tBTA_JV_RFC_CB *p_cb, tBTA_JV_PCB *p_pcb_open)
+{
+    UINT8   used = 0, i, listen=0;
+    UINT32  si = 0;
+    tPORT_STATE port_state;
+    UINT32 event_mask = BTA_JV_RFC_EV_MASK;
+    tBTA_JV_PCB *p_pcb = NULL;
+    if (p_cb->max_sess > 1)
+    {
+        for (i=0; i < p_cb->max_sess; i++)
+        {
+            if (p_cb->rfc_hdl[i] != 0)
+            {
+                p_pcb = &bta_jv_cb.port_cb[p_cb->rfc_hdl[i] - 1];
+                if (p_pcb->state == BTA_JV_ST_SR_LISTEN)
+                {
+                    listen++;
+                    if (p_pcb_open == p_pcb)
+                    {
+                        APPL_TRACE_DEBUG("bta_jv_add_rfc_port, port_handle:%d, change the listen port to open state",
+                                              p_pcb->port_handle);
+                        p_pcb->state = BTA_JV_ST_SR_OPEN;
+
+                    }
+                    else
+                    {
+                        APPL_TRACE_ERROR("bta_jv_add_rfc_port, open pcb not matching listen one,"
+                            "listen count:%d, listen pcb handle:%d, open pcb:%d",
+                               listen, p_pcb->port_handle, p_pcb_open->handle);
+                        return NULL;
+                    }
+                }
+                used++;
+            }
+            else if (si == 0)
+            {
+                si = i + 1;
+            }
+        }
+
+        APPL_TRACE_DEBUG("bta_jv_add_rfc_port max_sess=%d used:%d curr_sess:%d, listen:%d si:%d",
+                    p_cb->max_sess, used, p_cb->curr_sess, listen, si);
+        if (used < p_cb->max_sess && listen == 1 && si)
+        {
+            si--;
+            if (RFCOMM_CreateConnection(p_cb->sec_id, p_cb->scn, TRUE,
+                BTA_JV_DEF_RFC_MTU, (UINT8 *) bd_addr_any, &(p_cb->rfc_hdl[si]), bta_jv_port_mgmt_sr_cback) == PORT_SUCCESS)
+            {
+                p_cb->curr_sess++;
+                p_pcb = &bta_jv_cb.port_cb[p_cb->rfc_hdl[si] - 1];
+                p_pcb->state = BTA_JV_ST_SR_LISTEN;
+                p_pcb->port_handle = p_cb->rfc_hdl[si];
+                p_pcb->user_data = p_pcb_open->user_data;
+
+                PORT_ClearKeepHandleFlag(p_pcb->port_handle);
+                PORT_SetEventCallback(p_pcb->port_handle, bta_jv_port_event_sr_cback);
+                PORT_SetDataCOCallback (p_pcb->port_handle, bta_jv_port_data_co_cback);
+                PORT_SetEventMask(p_pcb->port_handle, event_mask);
+                PORT_GetState(p_pcb->port_handle, &port_state);
+
+                port_state.fc_type = (PORT_FC_CTS_ON_INPUT | PORT_FC_CTS_ON_OUTPUT);
+
+                PORT_SetState(p_pcb->port_handle, &port_state);
+                p_pcb->handle = BTA_JV_RFC_H_S_TO_HDL(p_cb->handle, si);
+                APPL_TRACE_DEBUG("bta_jv_add_rfc_port: p_pcb->handle:0x%x, curr_sess:%d",
+                                    p_pcb->handle, p_cb->curr_sess);
+            }
+        }
+        else
+            APPL_TRACE_ERROR("bta_jv_add_rfc_port, cannot create new rfc listen port");
+    }
+    APPL_TRACE_DEBUG("bta_jv_add_rfc_port: sec id in use:%d, rfc_cb in use:%d",
+                get_sec_id_used(), get_rfc_cb_used());
+    return p_pcb;
+}
+
+/*******************************************************************************
+**
+** Function     bta_jv_rfcomm_start_server
+**
+** Description  waits for an RFCOMM client to connect
+**
+**
+** Returns      void
+**
+*******************************************************************************/
+void bta_jv_rfcomm_start_server(tBTA_JV_MSG *p_data)
+{
+    UINT16 handle = 0;
+    UINT32 event_mask = BTA_JV_RFC_EV_MASK;
+    tPORT_STATE port_state;
+    UINT8   sec_id = 0;
+    tBTA_JV_RFC_CB  *p_cb = NULL;
+    tBTA_JV_PCB     *p_pcb;
+    tBTA_JV_API_RFCOMM_SERVER *rs = &(p_data->rfcomm_server);
+    tBTA_JV_RFCOMM_START evt_data;
+
+    /* TODO DM role manager
+    L2CA_SetDesireRole(rs->role);
+    */
+    memset(&evt_data, 0, sizeof(evt_data));
+    evt_data.status = BTA_JV_FAILURE;
+    APPL_TRACE_DEBUG("bta_jv_rfcomm_start_server: sec id in use:%d, rfc_cb in use:%d",
+                get_sec_id_used(), get_rfc_cb_used());
+
+    do
+    {
+        sec_id = bta_jv_alloc_sec_id();
+
+        if (0 == sec_id ||
+            BTM_SetSecurityLevel(FALSE, "JV PORT", sec_id,  rs->sec_mask,
+                BT_PSM_RFCOMM, BTM_SEC_PROTO_RFCOMM, rs->local_scn) == FALSE)
+        {
+            APPL_TRACE_ERROR("bta_jv_rfcomm_start_server, run out of sec_id");
+            break;
+        }
+
+        if (RFCOMM_CreateConnection(sec_id, rs->local_scn, TRUE,
+            BTA_JV_DEF_RFC_MTU, (UINT8 *) bd_addr_any, &handle, bta_jv_port_mgmt_sr_cback) != PORT_SUCCESS)
+        {
+            APPL_TRACE_ERROR("bta_jv_rfcomm_start_server, RFCOMM_CreateConnection failed");
+            break;
+        }
+
+
+        p_cb = bta_jv_alloc_rfc_cb(handle, &p_pcb);
+        if (!p_cb)
+        {
+            APPL_TRACE_ERROR("bta_jv_rfcomm_start_server, run out of rfc control block");
+            break;
+        }
+
+        p_cb->max_sess = rs->max_session;
+        p_cb->p_cback = rs->p_cback;
+        p_cb->sec_id = sec_id;
+        p_cb->scn = rs->local_scn;
+        p_pcb->state = BTA_JV_ST_SR_LISTEN;
+        p_pcb->user_data = rs->user_data;
+        evt_data.status = BTA_JV_SUCCESS;
+        evt_data.handle = p_cb->handle;
+        evt_data.sec_id = sec_id;
+        evt_data.use_co = TRUE;
+
+        PORT_ClearKeepHandleFlag(handle);
+        PORT_SetEventCallback(handle, bta_jv_port_event_sr_cback);
+        PORT_SetEventMask(handle, event_mask);
+        PORT_GetState(handle, &port_state);
+
+        port_state.fc_type = (PORT_FC_CTS_ON_INPUT | PORT_FC_CTS_ON_OUTPUT);
+
+        PORT_SetState(handle, &port_state);
+    } while (0);
+
+    rs->p_cback(BTA_JV_RFCOMM_START_EVT, (tBTA_JV *)&evt_data, rs->user_data);
+    if (evt_data.status == BTA_JV_SUCCESS)
+    {
+        PORT_SetDataCOCallback (handle, bta_jv_port_data_co_cback);
+    }
+    else
+    {
+        if (sec_id)
+            bta_jv_free_sec_id(&sec_id);
+        if (handle)
+            RFCOMM_RemoveConnection(handle);
+    }
+}
+
+/*******************************************************************************
+**
+** Function     bta_jv_rfcomm_stop_server
+**
+** Description  stops an RFCOMM server
+**
+** Returns      void
+**
+*******************************************************************************/
+
+void bta_jv_rfcomm_stop_server(tBTA_JV_MSG *p_data)
+{
+    tBTA_JV_API_RFCOMM_SERVER *ls = &(p_data->rfcomm_server);
+    tBTA_JV_RFC_CB           *p_cb = NULL;
+    tBTA_JV_PCB              *p_pcb = NULL;
+    APPL_TRACE_DEBUG("bta_jv_rfcomm_stop_server");
+    if (!ls->handle)
+    {
+        APPL_TRACE_ERROR("bta_jv_rfcomm_stop_server, jv handle is null");
+        return;
+    }
+    void* user_data = ls->user_data;
+    if (!find_rfc_pcb(user_data, &p_cb, &p_pcb))
+        return;
+    APPL_TRACE_DEBUG("bta_jv_rfcomm_stop_server: p_pcb:%p, p_pcb->port_handle:%d",
+                        p_pcb, p_pcb->port_handle);
+    bta_jv_free_rfc_cb(p_cb, p_pcb);
+    APPL_TRACE_DEBUG("bta_jv_rfcomm_stop_server: sec id in use:%d, rfc_cb in use:%d",
+                get_sec_id_used(), get_rfc_cb_used());
+}
+
+/*******************************************************************************
+**
+** Function     bta_jv_rfcomm_write
+**
+** Description  write data to an RFCOMM connection
+**
+** Returns      void
+**
+*******************************************************************************/
+void bta_jv_rfcomm_write(tBTA_JV_MSG *p_data)
+{
+    tBTA_JV_API_RFCOMM_WRITE *wc = &(p_data->rfcomm_write);
+    tBTA_JV_RFC_CB  *p_cb = wc->p_cb;
+    tBTA_JV_PCB     *p_pcb = wc->p_pcb;
+    tBTA_JV_RFCOMM_WRITE    evt_data;
+
+    evt_data.status = BTA_JV_FAILURE;
+    evt_data.handle = p_cb->handle;
+    evt_data.req_id = wc->req_id;
+    evt_data.cong   = p_pcb->cong;
+    evt_data.len    = 0;
+    bta_jv_pm_conn_busy(p_pcb->p_pm_cb);
+    if (!evt_data.cong &&
+        PORT_WriteDataCO(p_pcb->port_handle, &evt_data.len) ==
+        PORT_SUCCESS)
+    {
+        evt_data.status = BTA_JV_SUCCESS;
+    }
+    //update congestion flag
+    evt_data.cong   = p_pcb->cong;
+    if (p_cb->p_cback)
+    {
+        p_cb->p_cback(BTA_JV_RFCOMM_WRITE_EVT, (tBTA_JV *)&evt_data, p_pcb->user_data);
+    }
+    else
+    {
+        APPL_TRACE_ERROR("bta_jv_rfcomm_write :: WARNING ! No JV callback set");
+    }
+}
+
+/*******************************************************************************
+ **
+ ** Function     bta_jv_set_pm_profile
+ **
+ ** Description  Set or free power mode profile for a JV application
+ **
+ ** Returns      void
+ **
+ *******************************************************************************/
+void bta_jv_set_pm_profile(tBTA_JV_MSG *p_data)
+{
+    tBTA_JV_STATUS status;
+    tBTA_JV_PM_CB *p_cb;
+
+    APPL_TRACE_API("bta_jv_set_pm_profile(handle: 0x%x, app_id: %d, init_st: %d)",
+            p_data->set_pm.handle, p_data->set_pm.app_id, p_data->set_pm.init_st);
+
+    /* clear PM control block */
+    if (p_data->set_pm.app_id == BTA_JV_PM_ID_CLEAR)
+    {
+        status = bta_jv_free_set_pm_profile_cb(p_data->set_pm.handle);
+
+        if (status != BTA_JV_SUCCESS)
+        {
+            APPL_TRACE_WARNING("bta_jv_set_pm_profile() free pm cb failed: reason %d",
+                    status);
+        }
+    }
+    else /* set PM control block */
+    {
+        p_cb = bta_jv_alloc_set_pm_profile_cb(p_data->set_pm.handle,
+                p_data->set_pm.app_id);
+
+        if (NULL != p_cb)
+            bta_jv_pm_state_change(p_cb, p_data->set_pm.init_st);
+        else
+            APPL_TRACE_WARNING("bta_jv_alloc_set_pm_profile_cb() failed");
+    }
+}
+
+/*******************************************************************************
+ **
+ ** Function     bta_jv_change_pm_state
+ **
+ ** Description  change jv pm connect state, used internally
+ **
+ ** Returns      void
+ **
+ *******************************************************************************/
+void bta_jv_change_pm_state(tBTA_JV_MSG *p_data)
+{
+    tBTA_JV_API_PM_STATE_CHANGE *p_msg = (tBTA_JV_API_PM_STATE_CHANGE *)p_data;
+
+    if (p_msg->p_cb)
+        bta_jv_pm_state_change(p_msg->p_cb, p_msg->state);
+}
+
+
+/*******************************************************************************
+ **
+ ** Function    bta_jv_set_pm_conn_state
+ **
+ ** Description Send pm event state change to jv state machine to serialize jv pm changes
+ **             in relation to other jv messages. internal API use mainly.
+ **
+ ** Params:     p_cb: jv pm control block, NULL pointer returns failure
+ **             new_state: new PM connections state, setting is forced by action function
+ **
+ ** Returns     BTA_JV_SUCCESS, BTA_JV_FAILURE (buffer allocation, or NULL ptr!)
+ **
+ *******************************************************************************/
+tBTA_JV_STATUS bta_jv_set_pm_conn_state(tBTA_JV_PM_CB *p_cb, const tBTA_JV_CONN_STATE
+        new_st)
+{
+    if (p_cb == NULL)
+        return BTA_JV_FAILURE;
+
+    APPL_TRACE_API("%s: handle:0x%x, state: %d", __func__, p_cb->handle,
+                   new_st);
+
+    tBTA_JV_API_PM_STATE_CHANGE *p_msg =
+        (tBTA_JV_API_PM_STATE_CHANGE *)osi_malloc(sizeof(tBTA_JV_API_PM_STATE_CHANGE));
+    p_msg->hdr.event = BTA_JV_API_PM_STATE_CHANGE_EVT;
+    p_msg->p_cb = p_cb;
+    p_msg->state = new_st;
+
+    bta_sys_sendmsg(p_msg);
+
+    return BTA_JV_SUCCESS;
+}
+
+/*******************************************************************************
+ **
+ ** Function    bta_jv_pm_conn_busy
+ **
+ ** Description set pm connection busy state (input param safe)
+ **
+ ** Params      p_cb: pm control block of jv connection
+ **
+ ** Returns     void
+ **
+ *******************************************************************************/
+static void bta_jv_pm_conn_busy(tBTA_JV_PM_CB *p_cb)
+{
+    if ((NULL != p_cb) && (BTA_JV_PM_IDLE_ST == p_cb->state))
+        bta_jv_pm_state_change(p_cb, BTA_JV_CONN_BUSY);
+}
+
+/*******************************************************************************
+ **
+ ** Function    bta_jv_pm_conn_busy
+ **
+ ** Description set pm connection busy state (input param safe)
+ **
+ ** Params      p_cb: pm control block of jv connection
+ **
+ ** Returns     void
+ **
+ *******************************************************************************/
+static void bta_jv_pm_conn_idle(tBTA_JV_PM_CB *p_cb)
+{
+    if ((NULL != p_cb) && (BTA_JV_PM_IDLE_ST != p_cb->state))
+        bta_jv_pm_state_change(p_cb, BTA_JV_CONN_IDLE);
+}
+
+/*******************************************************************************
+ **
+ ** Function     bta_jv_pm_state_change
+ **
+ ** Description  Notify power manager there is state change
+ **
+ ** Params      p_cb: must be NONE NULL
+ **
+ ** Returns      void
+ **
+ *******************************************************************************/
+static void bta_jv_pm_state_change(tBTA_JV_PM_CB *p_cb, const tBTA_JV_CONN_STATE state)
+{
+    APPL_TRACE_API("bta_jv_pm_state_change(p_cb: 0x%x, handle: 0x%x, busy/idle_state: %d"
+            ", app_id: %d, conn_state: %d)", p_cb, p_cb->handle, p_cb->state,
+            p_cb->app_id, state);
+
+    switch (state)
+    {
+    case BTA_JV_CONN_OPEN:
+        bta_sys_conn_open(BTA_ID_JV, p_cb->app_id, p_cb->peer_bd_addr);
+        break;
+
+    case BTA_JV_CONN_CLOSE:
+        bta_sys_conn_close(BTA_ID_JV, p_cb->app_id, p_cb->peer_bd_addr);
+        break;
+
+    case BTA_JV_APP_OPEN:
+        bta_sys_app_open(BTA_ID_JV, p_cb->app_id, p_cb->peer_bd_addr);
+        break;
+
+    case BTA_JV_APP_CLOSE:
+        bta_sys_app_close(BTA_ID_JV, p_cb->app_id, p_cb->peer_bd_addr);
+        break;
+
+    case BTA_JV_SCO_OPEN:
+        bta_sys_sco_open(BTA_ID_JV, p_cb->app_id, p_cb->peer_bd_addr);
+        break;
+
+    case BTA_JV_SCO_CLOSE:
+        bta_sys_sco_close(BTA_ID_JV, p_cb->app_id, p_cb->peer_bd_addr);
+        break;
+
+    case BTA_JV_CONN_IDLE:
+        p_cb->state = BTA_JV_PM_IDLE_ST;
+        bta_sys_idle(BTA_ID_JV, p_cb->app_id, p_cb->peer_bd_addr);
+        break;
+
+    case BTA_JV_CONN_BUSY:
+        p_cb->state = BTA_JV_PM_BUSY_ST;
+        bta_sys_busy(BTA_ID_JV, p_cb->app_id, p_cb->peer_bd_addr);
+        break;
+
+    default:
+        APPL_TRACE_WARNING("bta_jv_pm_state_change(state: %d): Invalid state", state);
+        break;
+    }
+}
+/**********************************************************************************************/
+
+
+static struct fc_channel *fcchan_get(uint16_t chan, char create)
+{
+    struct fc_channel *t = fc_channels;
+    static tL2CAP_FIXED_CHNL_REG fcr = {
+        .pL2CA_FixedConn_Cb = fcchan_conn_chng_cbk,
+        .pL2CA_FixedData_Cb = fcchan_data_cbk,
+        .default_idle_tout  = 0xffff,
+        .fixed_chnl_opts = {
+            .mode         = L2CAP_FCR_BASIC_MODE,
+            .max_transmit = 0xFF,
+            .rtrans_tout  = 2000,
+            .mon_tout     = 12000,
+            .mps          = 670,
+            .tx_win_sz    = 1,
+        },
+    };
+
+    while (t && t->chan != chan)
+        t = t->next;
+
+    if (t)
+        return t;
+    else if (!create)
+        return NULL; /* we cannot alloc a struct if not asked to */
+
+    t = osi_calloc(sizeof(*t));
+    t->chan = chan;
+
+    if (!L2CA_RegisterFixedChannel(chan, &fcr)) {
+        osi_free(t);
+        return NULL;
+    }
+
+    //link it in
+    t->next = fc_channels;
+    fc_channels = t;
+
+    return t;
+}
+
+/* pass NULL to find servers */
+static struct fc_client *fcclient_find_by_addr(struct fc_client *start, BD_ADDR addr)
+{
+    struct fc_client *t = start;
+
+    while (t) {
+
+        /* match client if have addr */
+        if (addr && !memcmp(addr, &t->remote_addr, sizeof(t->remote_addr)))
+            break;
+
+        /* match server if do not have addr */
+        if (!addr && t->server)
+            break;
+
+        t = t->next_all_list;
+    }
+
+    return t;
+}
+
+static struct fc_client *fcclient_find_by_id(uint32_t id)
+{
+    struct fc_client *t = fc_clients;
+
+    while (t && t->id != id)
+        t = t->next_all_list;
+
+    return t;
+}
+
+static struct fc_client *fcclient_alloc(uint16_t chan, char server, const uint8_t *sec_id_to_use)
+{
+    struct fc_channel *fc = fcchan_get(chan, TRUE);
+    struct fc_client *t;
+    uint8_t sec_id;
+
+    if (!fc)
+        return NULL;
+
+    if (fc->has_server && server)
+        return NULL; /* no way to have multiple servers on same channel */
+
+    if (sec_id_to_use)
+        sec_id = *sec_id_to_use;
+    else
+        sec_id = bta_jv_alloc_sec_id();
+
+    t = osi_calloc(sizeof(*t));
+    // Allocate it a unique ID
+    do {
+        t->id = ++fc_next_id;
+    } while (!t->id || fcclient_find_by_id(t->id));
+
+    // Populate some params
+    t->chan = chan;
+    t->server = server;
+
+    // Get a security id
+    t->sec_id = sec_id;
+
+    // Link it in to global list
+    t->next_all_list = fc_clients;
+    fc_clients = t;
+
+    // Link it in to channel list
+    t->next_chan_list = fc->clients;
+    fc->clients = t;
+
+    // Update channel if needed
+    if (server)
+        fc->has_server = TRUE;
+
+    return t;
+}
+
+static void fcclient_free(struct fc_client *fc)
+{
+    struct fc_client *t = fc_clients;
+    struct fc_channel *tc = fcchan_get(fc->chan, FALSE);
+
+    //remove from global list
+    while (t && t->next_all_list != fc)
+        t = t->next_all_list;
+
+    if (!t && fc != fc_clients)
+        return; /* prevent double-free */
+
+    if (t)
+        t->next_all_list = fc->next_all_list;
+    else
+        fc_clients = fc->next_all_list;
+
+    //remove from channel list
+    if (tc) {
+        t = tc->clients;
+
+        while (t && t->next_chan_list != fc)
+            t = t->next_chan_list;
+
+        if (t)
+            t->next_chan_list = fc->next_chan_list;
+        else
+            tc->clients = fc->next_chan_list;
+
+        //if was server then channel no longer has a server
+        if (fc->server)
+            tc->has_server = FALSE;
+    }
+
+    //free security id
+    bta_jv_free_sec_id(&fc->sec_id);
+
+    osi_free(fc);
+}
+
+static void fcchan_conn_chng_cbk(UINT16 chan, BD_ADDR bd_addr, BOOLEAN connected, UINT16 reason, tBT_TRANSPORT transport)
+{
+    tBTA_JV init_evt;
+    tBTA_JV open_evt;
+    struct fc_channel *tc;
+    struct fc_client *t = NULL, *new_conn;
+    tBTA_JV_L2CAP_CBACK *p_cback = NULL;
+    char call_init = FALSE;
+    void *user_data = NULL;
+
+
+    tc = fcchan_get(chan, FALSE);
+    if (tc) {
+        t = fcclient_find_by_addr(tc->clients, bd_addr); // try to find an open socked for that addr
+        if (t) {
+            p_cback = t->p_cback;
+            user_data = t->user_data;
+        } else {
+            t = fcclient_find_by_addr(tc->clients, NULL); // try to find a listening socked for that channel
+            if (t) {
+                //found: create a normal connection socket and assign the connection to it
+                new_conn = fcclient_alloc(chan, FALSE, &t->sec_id);
+                if (new_conn){
+
+                    memcpy(&new_conn->remote_addr, bd_addr, sizeof(new_conn->remote_addr));
+                    new_conn->p_cback = NULL; //for now
+                    new_conn->init_called = TRUE; /*nop need to do it again */
+
+                    p_cback = t->p_cback;
+                    user_data = t->user_data;
+
+                    t = new_conn;
+                }
+            } else {
+                //drop it
+                return;
+            }
+        }
+    }
+
+    if (t) {
+
+        if (!t->init_called) {
+
+            call_init = TRUE;
+            t->init_called = TRUE;
+
+            init_evt.l2c_cl_init.handle = t->id;
+            init_evt.l2c_cl_init.status = BTA_JV_SUCCESS;
+            init_evt.l2c_cl_init.sec_id = t->sec_id;
+        }
+
+        open_evt.l2c_open.handle = t->id;
+        open_evt.l2c_open.tx_mtu = 23; /* 23, why not ?*/
+        memcpy(&open_evt.l2c_le_open.rem_bda, &t->remote_addr, sizeof(open_evt.l2c_le_open.rem_bda));
+        open_evt.l2c_le_open.p_p_cback = (void**)&t->p_cback;
+        open_evt.l2c_le_open.p_user_data = &t->user_data;
+        open_evt.l2c_le_open.status = BTA_JV_SUCCESS;
+
+        if (connected) {
+            open_evt.l2c_open.status = BTA_JV_SUCCESS;
+        } else {
+            fcclient_free(t);
+            open_evt.l2c_open.status = BTA_JV_FAILURE;
+        }
+    }
+
+    if (call_init)
+        p_cback(BTA_JV_L2CAP_CL_INIT_EVT, &init_evt, user_data);
+
+    //call this with lock taken so socket does not disappear from under us */
+    if (p_cback) {
+        p_cback(BTA_JV_L2CAP_OPEN_EVT, &open_evt, user_data);
+        if (!t->p_cback) /* no callback set, means they do not want this one... */
+            fcclient_free(t);
+    }
+}
+
+static void fcchan_data_cbk(UINT16 chan, BD_ADDR bd_addr, BT_HDR *p_buf)
+{
+    tBTA_JV evt_data;
+    struct fc_channel *tc;
+    struct fc_client *t = NULL;
+    tBTA_JV_L2CAP_CBACK *sock_cback = NULL;
+    void *sock_user_data;
+
+    tc = fcchan_get(chan, FALSE);
+    if (tc) {
+        t = fcclient_find_by_addr(tc->clients, bd_addr); // try to find an open socked for that addr and channel
+        if (!t) {
+            //no socket -> drop it
+            return;
+        }
+    }
+
+    sock_cback = t->p_cback;
+    sock_user_data = t->user_data;
+    evt_data.le_data_ind.handle = t->id;
+    evt_data.le_data_ind.p_buf = p_buf;
+
+    if (sock_cback)
+        sock_cback(BTA_JV_L2CAP_DATA_IND_EVT, &evt_data, sock_user_data);
+}
+
+
+/*******************************************************************************
+**
+** Function     bta_jv_l2cap_connect_le
+**
+** Description  makes an le l2cap client connection
+**
+** Returns      void
+**
+*******************************************************************************/
+void bta_jv_l2cap_connect_le(tBTA_JV_MSG *p_data)
+{
+    tBTA_JV_API_L2CAP_CONNECT *cc = &(p_data->l2cap_connect);
+    tBTA_JV evt;
+    uint32_t id;
+    char call_init_f = TRUE;
+    struct fc_client *t;
+
+    evt.l2c_cl_init.handle = GAP_INVALID_HANDLE;
+    evt.l2c_cl_init.status = BTA_JV_FAILURE;
+
+    t = fcclient_alloc(cc->remote_chan, FALSE, NULL);
+    if (!t) {
+        cc->p_cback(BTA_JV_L2CAP_CL_INIT_EVT, &evt, cc->user_data);
+        return;
+    }
+
+    t->p_cback = cc->p_cback;
+    t->user_data = cc->user_data;
+    memcpy(&t->remote_addr, &cc->peer_bd_addr, sizeof(t->remote_addr));
+    id = t->id;
+    t->init_called = FALSE;
+
+    if (L2CA_ConnectFixedChnl(t->chan, t->remote_addr)) {
+
+        evt.l2c_cl_init.status = BTA_JV_SUCCESS;
+        evt.l2c_cl_init.handle = id;
+    }
+
+    //it could have been deleted/moved from under us, so re-find it */
+    t = fcclient_find_by_id(id);
+    if (t) {
+        if (evt.l2c_cl_init.status == BTA_JV_SUCCESS)
+            call_init_f = !t->init_called;
+        else
+            fcclient_free(t);
+    }
+    if (call_init_f)
+        cc->p_cback(BTA_JV_L2CAP_CL_INIT_EVT, &evt, cc->user_data);
+    t->init_called = TRUE;
+}
+
+
+/*******************************************************************************
+**
+** Function     bta_jv_l2cap_stop_server_le
+**
+** Description  stops an LE L2CAP server
+**
+** Returns      void
+**
+*******************************************************************************/
+void bta_jv_l2cap_stop_server_le(tBTA_JV_MSG *p_data)
+{
+    tBTA_JV  evt;
+    tBTA_JV_API_L2CAP_SERVER *ls = &(p_data->l2cap_server);
+    tBTA_JV_L2CAP_CBACK *p_cback = NULL;
+    struct fc_channel *fcchan;
+    struct fc_client *fcclient;
+    void *user_data;
+
+    evt.l2c_close.status = BTA_JV_FAILURE;
+    evt.l2c_close.async = FALSE;
+    evt.l2c_close.handle = GAP_INVALID_HANDLE;
+
+    fcchan = fcchan_get(ls->local_chan, FALSE);
+    if (fcchan) {
+        while((fcclient = fcchan->clients)) {
+            p_cback = fcclient->p_cback;
+            user_data = fcclient->user_data;
+
+            evt.l2c_close.handle = fcclient->id;
+            evt.l2c_close.status = BTA_JV_SUCCESS;
+            evt.l2c_close.async = FALSE;
+
+            fcclient_free(fcclient);
+
+            if (p_cback)
+                p_cback(BTA_JV_L2CAP_CLOSE_EVT, &evt, user_data);
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function     bta_jv_l2cap_start_server_le
+**
+** Description  starts an LE L2CAP server
+**
+** Returns      void
+**
+*******************************************************************************/
+void bta_jv_l2cap_start_server_le(tBTA_JV_MSG *p_data)
+{
+    tBTA_JV_API_L2CAP_SERVER *ss = &(p_data->l2cap_server);
+    tBTA_JV_L2CAP_START evt_data;
+    struct fc_client *t;
+
+    evt_data.handle = GAP_INVALID_HANDLE;
+    evt_data.status = BTA_JV_FAILURE;
+
+
+    t = fcclient_alloc(ss->local_chan, TRUE, NULL);
+    if (!t)
+        goto out;
+
+    t->p_cback = ss->p_cback;
+    t->user_data = ss->user_data;
+
+    //if we got here, we're registered...
+    evt_data.status = BTA_JV_SUCCESS;
+    evt_data.handle = t->id;
+    evt_data.sec_id = t->sec_id;
+
+out:
+    ss->p_cback(BTA_JV_L2CAP_START_EVT, (tBTA_JV *)&evt_data, ss->user_data);
+}
+
+/*******************************************************************************
+**
+** Function     bta_jv_l2cap_close_fixed
+**
+** Description  close a fixed channel connection. calls no callbacks. idempotent
+**
+** Returns      void
+**
+*******************************************************************************/
+extern void bta_jv_l2cap_close_fixed (tBTA_JV_MSG *p_data)
+{
+    tBTA_JV_API_L2CAP_CLOSE *cc = &(p_data->l2cap_close);
+    struct fc_client *t;
+
+    t = fcclient_find_by_id(cc->handle);
+    if (t)
+        fcclient_free(t);
+}
diff --git a/rtkbt/code/bt/bta/jv/bta_jv_api.c b/rtkbt/code/bt/bta/jv/bta_jv_api.c
new file mode 100755
index 0000000..674a510
--- /dev/null
+++ b/rtkbt/code/bt/bta/jv/bta_jv_api.c
@@ -0,0 +1,996 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2006-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the implementation of the JAVA API for Bluetooth Wireless
+ *  Technology (JABWT) as specified by the JSR82 specificiation
+ *
+ ******************************************************************************/
+#include "bta_api.h"
+#include "bta_sys.h"
+#include "bta_jv_api.h"
+#include "bta_jv_int.h"
+#include "bt_common.h"
+#include <string.h>
+#include "port_api.h"
+#include "sdp_api.h"
+#include "utl.h"
+#include "gap_api.h"
+
+/*****************************************************************************
+**  Constants
+*****************************************************************************/
+
+static const tBTA_SYS_REG bta_jv_reg =
+{
+    bta_jv_sm_execute,
+    NULL
+};
+
+/*******************************************************************************
+**
+** Function         BTA_JvEnable
+**
+** Description      Enable the Java I/F service. When the enable
+**                  operation is complete the callback function will be
+**                  called with a BTA_JV_ENABLE_EVT. This function must
+**                  be called before other function in the JV API are
+**                  called.
+**
+** Returns          BTA_JV_SUCCESS if successful.
+**                  BTA_JV_FAIL if internal failure.
+**
+*******************************************************************************/
+tBTA_JV_STATUS BTA_JvEnable(tBTA_JV_DM_CBACK *p_cback)
+{
+    tBTA_JV_STATUS status = BTA_JV_FAILURE;
+    int i;
+
+    APPL_TRACE_API( "BTA_JvEnable");
+    if(p_cback && FALSE == bta_sys_is_register(BTA_ID_JV))
+    {
+        memset(&bta_jv_cb, 0, sizeof(tBTA_JV_CB));
+        /* set handle to invalid value by default */
+        for (i=0; i<BTA_JV_PM_MAX_NUM; i++)
+        {
+            bta_jv_cb.pm_cb[i].handle = BTA_JV_PM_HANDLE_CLEAR;
+        }
+
+        /* register with BTA system manager */
+        bta_sys_register(BTA_ID_JV, &bta_jv_reg);
+
+        if (p_cback) {
+            tBTA_JV_API_ENABLE *p_buf =
+                (tBTA_JV_API_ENABLE *)osi_malloc(sizeof(tBTA_JV_API_ENABLE));
+            p_buf->hdr.event = BTA_JV_API_ENABLE_EVT;
+            p_buf->p_cback = p_cback;
+            bta_sys_sendmsg(p_buf);
+            status = BTA_JV_SUCCESS;
+        }
+    }
+    else
+      {
+         APPL_TRACE_ERROR("JVenable fails");
+      }
+    return(status);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_JvDisable
+**
+** Description      Disable the Java I/F
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_JvDisable(void)
+{
+    BT_HDR *p_buf = (BT_HDR *)osi_malloc(sizeof(BT_HDR));
+
+    APPL_TRACE_API("%s", __func__);
+
+    bta_sys_deregister(BTA_ID_JV);
+    p_buf->event = BTA_JV_API_DISABLE_EVT;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_JvIsEncrypted
+**
+** Description      This function checks if the link to peer device is encrypted
+**
+** Returns          TRUE if encrypted.
+**                  FALSE if not.
+**
+*******************************************************************************/
+BOOLEAN BTA_JvIsEncrypted(BD_ADDR bd_addr)
+{
+    BOOLEAN is_encrypted = FALSE;
+    UINT8 sec_flags, le_flags;
+
+    if (BTM_GetSecurityFlags(bd_addr, &sec_flags) &&
+        BTM_GetSecurityFlagsByTransport(bd_addr, &le_flags, BT_TRANSPORT_LE))
+    {
+        if(sec_flags & BTM_SEC_FLAG_ENCRYPTED ||
+           le_flags & BTM_SEC_FLAG_ENCRYPTED)
+            is_encrypted = TRUE;
+    }
+    return is_encrypted;
+}
+/*******************************************************************************
+**
+** Function         BTA_JvGetChannelId
+**
+** Description      This function reserves a SCN (server channel number) for
+**                  applications running over RFCOMM, L2CAP of L2CAP_LE.
+**                  It is primarily called by server profiles/applications to
+**                  register their SCN into the SDP database. The SCN is reported
+**                  by the tBTA_JV_DM_CBACK callback with a BTA_JV_GET_SCN_EVT
+**                  for RFCOMM channels and BTA_JV_GET_PSM_EVT for L2CAP and LE.
+**                  If the SCN/PSM reported is 0, that means all resources are
+**                  exhausted.
+** Parameters
+**   conn_type      one of BTA_JV_CONN_TYPE_
+**   user_data      Any uservalue - will be returned in the resulting event.
+**   channel        Only used for RFCOMM - to try to allocate a specific RFCOMM
+**                  channel.
+**
+** Returns          BTA_JV_SUCCESS, if the request is being processed.
+**                  BTA_JV_FAILURE, otherwise.
+**
+*******************************************************************************/
+tBTA_JV_STATUS BTA_JvGetChannelId(int conn_type, void* user_data, INT32 channel)
+{
+    tBTA_JV_API_ALLOC_CHANNEL *p_msg =
+        (tBTA_JV_API_ALLOC_CHANNEL *)osi_malloc(sizeof(tBTA_JV_API_ALLOC_CHANNEL));
+
+    APPL_TRACE_API("%s", __func__);
+
+    p_msg->hdr.event = BTA_JV_API_GET_CHANNEL_EVT;
+    p_msg->type      = conn_type;
+    p_msg->channel   = channel;
+    p_msg->user_data = user_data;
+    
+    bta_sys_sendmsg(p_msg);
+
+    return BTA_JV_SUCCESS;
+
+}
+
+/*******************************************************************************
+**
+** Function         BTA_JvFreeChannel
+**
+** Description      This function frees a server channel number that was used
+**                  by an application running over RFCOMM.
+** Parameters
+**   channel        The channel to free
+**   conn_type      one of BTA_JV_CONN_TYPE_
+**
+** Returns          BTA_JV_SUCCESS, if the request is being processed.
+**                  BTA_JV_FAILURE, otherwise.
+**
+*******************************************************************************/
+tBTA_JV_STATUS BTA_JvFreeChannel(UINT16 channel, int conn_type)
+{
+    tBTA_JV_API_FREE_CHANNEL *p_msg =
+        (tBTA_JV_API_FREE_CHANNEL *)osi_malloc(sizeof(tBTA_JV_API_FREE_CHANNEL));
+
+    APPL_TRACE_API("%s", __func__);
+
+    p_msg->hdr.event = BTA_JV_API_FREE_SCN_EVT;
+    p_msg->scn       = channel;
+    p_msg->type      = conn_type;
+
+    bta_sys_sendmsg(p_msg);
+
+    return BTA_JV_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         BTA_JvStartDiscovery
+**
+** Description      This function performs service discovery for the services
+**                  provided by the given peer device. When the operation is
+**                  complete the tBTA_JV_DM_CBACK callback function will be
+**                  called with a BTA_JV_DISCOVERY_COMP_EVT.
+**
+** Returns          BTA_JV_SUCCESS, if the request is being processed.
+**                  BTA_JV_FAILURE, otherwise.
+**
+*******************************************************************************/
+tBTA_JV_STATUS BTA_JvStartDiscovery(BD_ADDR bd_addr, UINT16 num_uuid,
+            tSDP_UUID *p_uuid_list, void * user_data)
+{
+    tBTA_JV_API_START_DISCOVERY *p_msg =
+        (tBTA_JV_API_START_DISCOVERY *)osi_malloc(sizeof(tBTA_JV_API_START_DISCOVERY));
+
+    APPL_TRACE_API("%s", __func__);
+
+    p_msg->hdr.event = BTA_JV_API_START_DISCOVERY_EVT;
+    bdcpy(p_msg->bd_addr, bd_addr);
+    p_msg->num_uuid = num_uuid;
+    memcpy(p_msg->uuid_list, p_uuid_list, num_uuid * sizeof(tSDP_UUID));
+    p_msg->num_attr = 0;
+    p_msg->user_data = user_data;
+
+    bta_sys_sendmsg(p_msg);
+
+    return BTA_JV_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         BTA_JvCreateRecord
+**
+** Description      Create a service record in the local SDP database.
+**                  When the operation is complete the tBTA_JV_DM_CBACK callback
+**                  function will be called with a BTA_JV_CREATE_RECORD_EVT.
+**
+** Returns          BTA_JV_SUCCESS, if the request is being processed.
+**                  BTA_JV_FAILURE, otherwise.
+**
+*******************************************************************************/
+tBTA_JV_STATUS BTA_JvCreateRecordByUser(void *user_data)
+{
+    tBTA_JV_API_CREATE_RECORD *p_msg =
+        (tBTA_JV_API_CREATE_RECORD *)osi_malloc(sizeof(tBTA_JV_API_CREATE_RECORD));
+
+    APPL_TRACE_API("%s", __func__);
+
+    p_msg->hdr.event = BTA_JV_API_CREATE_RECORD_EVT;
+    p_msg->user_data = user_data;
+
+    bta_sys_sendmsg(p_msg);
+
+    return BTA_JV_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         BTA_JvDeleteRecord
+**
+** Description      Delete a service record in the local SDP database.
+**
+** Returns          BTA_JV_SUCCESS, if the request is being processed.
+**                  BTA_JV_FAILURE, otherwise.
+**
+*******************************************************************************/
+tBTA_JV_STATUS BTA_JvDeleteRecord(UINT32 handle)
+{
+    tBTA_JV_API_ADD_ATTRIBUTE *p_msg =
+        (tBTA_JV_API_ADD_ATTRIBUTE *)osi_malloc(sizeof(tBTA_JV_API_ADD_ATTRIBUTE));
+
+    APPL_TRACE_API("%s", __func__);
+
+    p_msg->hdr.event = BTA_JV_API_DELETE_RECORD_EVT;
+    p_msg->handle = handle;
+
+    bta_sys_sendmsg(p_msg);
+
+    return BTA_JV_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         BTA_JvL2capConnectLE
+**
+** Description      Initiate an LE connection as a L2CAP client to the given BD
+**                  Address.
+**                  When the connection is initiated or failed to initiate,
+**                  tBTA_JV_L2CAP_CBACK is called with BTA_JV_L2CAP_CL_INIT_EVT
+**                  When the connection is established or failed,
+**                  tBTA_JV_L2CAP_CBACK is called with BTA_JV_L2CAP_OPEN_EVT
+**
+** Returns          BTA_JV_SUCCESS, if the request is being processed.
+**                  BTA_JV_FAILURE, otherwise.
+**
+*******************************************************************************/
+tBTA_JV_STATUS BTA_JvL2capConnectLE(tBTA_SEC sec_mask, tBTA_JV_ROLE role,
+                           const tL2CAP_ERTM_INFO *ertm_info, UINT16 remote_chan,
+                           UINT16 rx_mtu, tL2CAP_CFG_INFO *cfg,
+                           BD_ADDR peer_bd_addr, tBTA_JV_L2CAP_CBACK *p_cback, void *user_data)
+{
+    APPL_TRACE_API("%s", __func__);
+
+    if (p_cback == NULL)
+        return BTA_JV_FAILURE;                  /* Nothing to do */
+
+    tBTA_JV_API_L2CAP_CONNECT *p_msg =
+        (tBTA_JV_API_L2CAP_CONNECT *)osi_malloc(sizeof(tBTA_JV_API_L2CAP_CONNECT));
+    p_msg->hdr.event    = BTA_JV_API_L2CAP_CONNECT_LE_EVT;
+    p_msg->sec_mask     = sec_mask;
+    p_msg->role         = role;
+    p_msg->remote_chan  = remote_chan;
+    p_msg->rx_mtu       = rx_mtu;
+    if (cfg != NULL) {
+        p_msg->has_cfg = TRUE;
+        p_msg->cfg = *cfg;
+    } else {
+        p_msg->has_cfg = FALSE;
+    }
+    if (ertm_info != NULL) {
+        p_msg->has_ertm_info = TRUE;
+        p_msg->ertm_info = *ertm_info;
+    } else {
+        p_msg->has_ertm_info = FALSE;
+    }
+    memcpy(p_msg->peer_bd_addr, peer_bd_addr, sizeof(BD_ADDR));
+    p_msg->p_cback      = p_cback;
+    p_msg->user_data    = user_data;
+
+    bta_sys_sendmsg(p_msg);
+
+    return BTA_JV_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         BTA_JvL2capConnect
+**
+** Description      Initiate a connection as a L2CAP client to the given BD
+**                  Address.
+**                  When the connection is initiated or failed to initiate,
+**                  tBTA_JV_L2CAP_CBACK is called with BTA_JV_L2CAP_CL_INIT_EVT
+**                  When the connection is established or failed,
+**                  tBTA_JV_L2CAP_CBACK is called with BTA_JV_L2CAP_OPEN_EVT
+**
+** Returns          BTA_JV_SUCCESS, if the request is being processed.
+**                  BTA_JV_FAILURE, otherwise.
+**
+*******************************************************************************/
+tBTA_JV_STATUS BTA_JvL2capConnect(int conn_type, tBTA_SEC sec_mask, tBTA_JV_ROLE role,
+                           const tL2CAP_ERTM_INFO *ertm_info, UINT16 remote_psm,
+                           UINT16 rx_mtu, tL2CAP_CFG_INFO *cfg,
+                           BD_ADDR peer_bd_addr, tBTA_JV_L2CAP_CBACK *p_cback, void *user_data)
+{
+    APPL_TRACE_API("%s", __func__);
+
+    if (p_cback == NULL)
+        return BTA_JV_FAILURE;                  /* Nothing to do */
+
+    tBTA_JV_API_L2CAP_CONNECT *p_msg =
+        (tBTA_JV_API_L2CAP_CONNECT *)osi_malloc(sizeof(tBTA_JV_API_L2CAP_CONNECT));
+    p_msg->hdr.event    = BTA_JV_API_L2CAP_CONNECT_EVT;
+    p_msg->type         = conn_type;
+    p_msg->sec_mask     = sec_mask;
+    p_msg->role         = role;
+    p_msg->remote_psm   = remote_psm;
+    p_msg->rx_mtu       = rx_mtu;
+    if (cfg != NULL) {
+        p_msg->has_cfg = TRUE;
+        p_msg->cfg = *cfg;
+    } else {
+        p_msg->has_cfg = FALSE;
+    }
+    if (ertm_info != NULL) {
+        p_msg->has_ertm_info = TRUE;
+        p_msg->ertm_info = *ertm_info;
+    } else {
+        p_msg->has_ertm_info = FALSE;
+    }
+    memcpy(p_msg->peer_bd_addr, peer_bd_addr, sizeof(BD_ADDR));
+    p_msg->p_cback      = p_cback;
+    p_msg->user_data    = user_data;
+
+    bta_sys_sendmsg(p_msg);
+
+    return BTA_JV_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         BTA_JvL2capClose
+**
+** Description      This function closes an L2CAP client connection
+**
+** Returns          BTA_JV_SUCCESS, if the request is being processed.
+**                  BTA_JV_FAILURE, otherwise.
+**
+*******************************************************************************/
+tBTA_JV_STATUS BTA_JvL2capClose(UINT32 handle)
+{
+    tBTA_JV_STATUS status = BTA_JV_FAILURE;
+
+    APPL_TRACE_API("%s", __func__);
+
+    if (handle < BTA_JV_MAX_L2C_CONN && bta_jv_cb.l2c_cb[handle].p_cback) {
+        tBTA_JV_API_L2CAP_CLOSE *p_msg =
+            (tBTA_JV_API_L2CAP_CLOSE *)osi_malloc(sizeof(tBTA_JV_API_L2CAP_CLOSE));
+        p_msg->hdr.event = BTA_JV_API_L2CAP_CLOSE_EVT;
+        p_msg->handle = handle;
+        p_msg->p_cb = &bta_jv_cb.l2c_cb[handle];
+
+        bta_sys_sendmsg(p_msg);
+        status = BTA_JV_SUCCESS;
+    }
+
+    return status;
+}
+
+/*******************************************************************************
+**
+** Function         BTA_JvL2capCloseLE
+**
+** Description      This function closes an L2CAP client connection for Fixed Channels
+**                  Function is idempotent and no callbacks are called!
+**
+** Returns          BTA_JV_SUCCESS, if the request is being processed.
+**                  BTA_JV_FAILURE, otherwise.
+**
+*******************************************************************************/
+tBTA_JV_STATUS BTA_JvL2capCloseLE(UINT32 handle)
+{
+    tBTA_JV_API_L2CAP_CLOSE *p_msg =
+        (tBTA_JV_API_L2CAP_CLOSE *)osi_malloc(sizeof(tBTA_JV_API_L2CAP_CLOSE));
+
+    APPL_TRACE_API("%s", __func__);
+
+    p_msg->hdr.event = BTA_JV_API_L2CAP_CLOSE_FIXED_EVT;
+    p_msg->handle = handle;
+
+    bta_sys_sendmsg(p_msg);
+
+    return BTA_JV_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         BTA_JvL2capStartServer
+**
+** Description      This function starts an L2CAP server and listens for an L2CAP
+**                  connection from a remote Bluetooth device.  When the server
+**                  is started successfully, tBTA_JV_L2CAP_CBACK is called with
+**                  BTA_JV_L2CAP_START_EVT.  When the connection is established,
+**                  tBTA_JV_L2CAP_CBACK is called with BTA_JV_L2CAP_OPEN_EVT.
+**
+** Returns          BTA_JV_SUCCESS, if the request is being processed.
+**                  BTA_JV_FAILURE, otherwise.
+**
+*******************************************************************************/
+tBTA_JV_STATUS BTA_JvL2capStartServer(int conn_type, tBTA_SEC sec_mask, tBTA_JV_ROLE role,
+        const tL2CAP_ERTM_INFO *ertm_info,UINT16 local_psm, UINT16 rx_mtu, tL2CAP_CFG_INFO *cfg,
+        tBTA_JV_L2CAP_CBACK *p_cback, void *user_data)
+{
+    APPL_TRACE_API("%s", __func__);
+
+    if (p_cback == NULL)
+        return BTA_JV_FAILURE;                  /* Nothing to do */
+
+    tBTA_JV_API_L2CAP_SERVER *p_msg =
+        (tBTA_JV_API_L2CAP_SERVER *)osi_malloc(sizeof(tBTA_JV_API_L2CAP_SERVER));
+    p_msg->hdr.event = BTA_JV_API_L2CAP_START_SERVER_EVT;
+    p_msg->type = conn_type;
+    p_msg->sec_mask = sec_mask;
+    p_msg->role = role;
+    p_msg->local_psm = local_psm;
+    p_msg->rx_mtu = rx_mtu;
+    if (cfg != NULL) {
+        p_msg->has_cfg = TRUE;
+        p_msg->cfg = *cfg;
+    } else {
+        p_msg->has_cfg = FALSE;
+    }
+    if (ertm_info != NULL) {
+        p_msg->has_ertm_info = TRUE;
+        p_msg->ertm_info = *ertm_info;
+    } else {
+        p_msg->has_ertm_info = FALSE;
+    }
+    p_msg->p_cback = p_cback;
+    p_msg->user_data = user_data;
+
+    bta_sys_sendmsg(p_msg);
+
+    return BTA_JV_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         BTA_JvL2capStartServerLE
+**
+** Description      This function starts an LE L2CAP server and listens for an L2CAP
+**                  connection from a remote Bluetooth device.  When the server
+**                  is started successfully, tBTA_JV_L2CAP_CBACK is called with
+**                  BTA_JV_L2CAP_START_EVT.  When the connection is established,
+**                  tBTA_JV_L2CAP_CBACK is called with BTA_JV_L2CAP_OPEN_EVT.
+**
+** Returns          BTA_JV_SUCCESS, if the request is being processed.
+**                  BTA_JV_FAILURE, otherwise.
+**
+*******************************************************************************/
+tBTA_JV_STATUS BTA_JvL2capStartServerLE(tBTA_SEC sec_mask, tBTA_JV_ROLE role,
+        const tL2CAP_ERTM_INFO *ertm_info,UINT16 local_chan, UINT16 rx_mtu, tL2CAP_CFG_INFO *cfg,
+        tBTA_JV_L2CAP_CBACK *p_cback, void *user_data)
+{
+    APPL_TRACE_API("%s", __func__);
+
+    if (p_cback == NULL)
+        return BTA_JV_FAILURE;                  /* Nothing to do */
+
+    tBTA_JV_API_L2CAP_SERVER *p_msg =
+        (tBTA_JV_API_L2CAP_SERVER *)osi_malloc(sizeof(tBTA_JV_API_L2CAP_SERVER));
+    p_msg->hdr.event = BTA_JV_API_L2CAP_START_SERVER_LE_EVT;
+    p_msg->sec_mask = sec_mask;
+    p_msg->role = role;
+    p_msg->local_chan = local_chan;
+    p_msg->rx_mtu = rx_mtu;
+    if (cfg != NULL) {
+        p_msg->has_cfg = TRUE;
+        p_msg->cfg = *cfg;
+    } else {
+        p_msg->has_cfg = FALSE;
+    }
+    if (ertm_info != NULL) {
+        p_msg->has_ertm_info = TRUE;
+        p_msg->ertm_info = *ertm_info;
+    } else {
+        p_msg->has_ertm_info = FALSE;
+    }
+    p_msg->p_cback = p_cback;
+    p_msg->user_data = user_data;
+
+    bta_sys_sendmsg(p_msg);
+
+    return BTA_JV_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         BTA_JvL2capStopServer
+**
+** Description      This function stops the L2CAP server. If the server has an
+**                  active connection, it would be closed.
+**
+** Returns          BTA_JV_SUCCESS, if the request is being processed.
+**                  BTA_JV_FAILURE, otherwise.
+**
+*******************************************************************************/
+tBTA_JV_STATUS BTA_JvL2capStopServer(UINT16 local_psm, void *user_data)
+{
+    APPL_TRACE_API("%s", __func__);
+
+    tBTA_JV_API_L2CAP_SERVER *p_msg =
+        (tBTA_JV_API_L2CAP_SERVER *)osi_malloc(sizeof(tBTA_JV_API_L2CAP_SERVER));
+    p_msg->hdr.event = BTA_JV_API_L2CAP_STOP_SERVER_EVT;
+    p_msg->local_psm = local_psm;
+    p_msg->user_data = user_data;
+
+    bta_sys_sendmsg(p_msg);
+
+    return BTA_JV_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         BTA_JvL2capStopServerLE
+**
+** Description      This function stops the LE L2CAP server. If the server has an
+**                  active connection, it would be closed.
+**
+** Returns          BTA_JV_SUCCESS, if the request is being processed.
+**                  BTA_JV_FAILURE, otherwise.
+**
+*******************************************************************************/
+tBTA_JV_STATUS BTA_JvL2capStopServerLE(UINT16 local_chan, void *user_data)
+{
+    APPL_TRACE_API("%s", __func__);
+
+    tBTA_JV_API_L2CAP_SERVER *p_msg =
+        (tBTA_JV_API_L2CAP_SERVER *)osi_malloc(sizeof(tBTA_JV_API_L2CAP_SERVER));
+    p_msg->hdr.event = BTA_JV_API_L2CAP_STOP_SERVER_LE_EVT;
+    p_msg->local_chan = local_chan;
+    p_msg->user_data = user_data;
+
+    bta_sys_sendmsg(p_msg);
+
+    return BTA_JV_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         BTA_JvL2capRead
+**
+** Description      This function reads data from an L2CAP connecti;
+    tBTA_JV_RFC_CB  *p_cb = rc->p_cb;
+on
+**                  When the operation is complete, tBTA_JV_L2CAP_CBACK is
+**                  called with BTA_JV_L2CAP_READ_EVT.
+**
+** Returns          BTA_JV_SUCCESS, if the request is being processed.
+**                  BTA_JV_FAILURE, otherwise.
+**
+*******************************************************************************/
+tBTA_JV_STATUS BTA_JvL2capRead(UINT32 handle, UINT32 req_id, UINT8 *p_data, UINT16 len)
+{
+    tBTA_JV_STATUS status = BTA_JV_FAILURE;
+    tBTA_JV_L2CAP_READ evt_data;
+
+    APPL_TRACE_API( "%s", __func__);
+    
+
+    if (handle < BTA_JV_MAX_L2C_CONN && bta_jv_cb.l2c_cb[handle].p_cback)
+    {
+        status = BTA_JV_SUCCESS;
+        evt_data.status = BTA_JV_FAILURE;
+        evt_data.handle = handle;
+        evt_data.req_id = req_id;
+        evt_data.p_data = p_data;
+        evt_data.len    = 0;
+
+        if (BT_PASS == GAP_ConnReadData((UINT16)handle, p_data, len, &evt_data.len))
+        {
+            evt_data.status = BTA_JV_SUCCESS;
+        }
+        bta_jv_cb.l2c_cb[handle].p_cback(
+                BTA_JV_L2CAP_READ_EVT, (tBTA_JV *)&evt_data, bta_jv_cb.l2c_cb[handle].user_data);
+    }
+
+    return(status);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_JvL2capReady
+**
+** Description      This function determined if there is data to read from
+**                    an L2CAP connection
+**
+** Returns          BTA_JV_SUCCESS, if data queue size is in *p_data_size.
+**                  BTA_JV_FAILURE, if error.
+**
+*******************************************************************************/
+tBTA_JV_STATUS BTA_JvL2capReady(UINT32 handle, UINT32 *p_data_size)
+{
+    tBTA_JV_STATUS status = BTA_JV_FAILURE;
+
+    APPL_TRACE_API( "%s: %d", __func__, handle);
+    if (p_data_size && handle < BTA_JV_MAX_L2C_CONN && bta_jv_cb.l2c_cb[handle].p_cback)
+    {
+        *p_data_size = 0;
+        if(BT_PASS == GAP_GetRxQueueCnt((UINT16)handle, p_data_size) )
+        {
+            status = BTA_JV_SUCCESS;
+        }
+    }
+
+    return(status);
+}
+
+
+/*******************************************************************************
+**
+** Function         BTA_JvL2capWrite
+**
+** Description      This function writes data to an L2CAP connection
+**                  When the operation is complete, tBTA_JV_L2CAP_CBACK is
+**                  called with BTA_JV_L2CAP_WRITE_EVT. Works for
+**                  PSM-based connections
+**
+** Returns          BTA_JV_SUCCESS, if the request is being processed.
+**                  BTA_JV_FAILURE, otherwise.
+**
+*******************************************************************************/
+tBTA_JV_STATUS BTA_JvL2capWrite(UINT32 handle, UINT32 req_id, UINT8 *p_data,
+        UINT16 len, void *user_data)
+{
+    tBTA_JV_STATUS status = BTA_JV_FAILURE;
+
+    APPL_TRACE_API("%s", __func__);
+
+    if (handle < BTA_JV_MAX_L2C_CONN && bta_jv_cb.l2c_cb[handle].p_cback) {
+        tBTA_JV_API_L2CAP_WRITE *p_msg =
+            (tBTA_JV_API_L2CAP_WRITE *)osi_malloc(sizeof(tBTA_JV_API_L2CAP_WRITE));
+        p_msg->hdr.event = BTA_JV_API_L2CAP_WRITE_EVT;
+        p_msg->handle = handle;
+        p_msg->req_id = req_id;
+        p_msg->p_data = p_data;
+        p_msg->p_cb = &bta_jv_cb.l2c_cb[handle];
+        p_msg->len = len;
+        p_msg->user_data = user_data;
+
+        bta_sys_sendmsg(p_msg);
+
+        status = BTA_JV_SUCCESS;
+    }
+
+    return status;
+}
+
+/*******************************************************************************
+**
+** Function         BTA_JvL2capWriteFixed
+**
+** Description      This function writes data to an L2CAP connection
+**                  When the operation is complete, tBTA_JV_L2CAP_CBACK is
+**                  called with BTA_JV_L2CAP_WRITE_EVT. Works for
+**                  fixed-channel connections
+**
+** Returns          BTA_JV_SUCCESS, if the request is being processed.
+**                  BTA_JV_FAILURE, otherwise.
+**
+*******************************************************************************/
+tBTA_JV_STATUS BTA_JvL2capWriteFixed(UINT16 channel, BD_ADDR *addr, UINT32 req_id,
+        tBTA_JV_L2CAP_CBACK *p_cback, UINT8 *p_data, UINT16 len, void *user_data)
+{
+    tBTA_JV_API_L2CAP_WRITE_FIXED *p_msg =
+        (tBTA_JV_API_L2CAP_WRITE_FIXED *)osi_malloc(sizeof(tBTA_JV_API_L2CAP_WRITE_FIXED));
+
+    APPL_TRACE_API("%s", __func__);
+
+    p_msg->hdr.event = BTA_JV_API_L2CAP_WRITE_FIXED_EVT;
+    p_msg->channel = channel;
+    memcpy(p_msg->addr, addr, sizeof(p_msg->addr));
+    p_msg->req_id = req_id;
+    p_msg->p_data = p_data;
+    p_msg->p_cback = p_cback;
+    p_msg->len = len;
+    p_msg->user_data = user_data;
+
+    bta_sys_sendmsg(p_msg);
+
+    return BTA_JV_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         BTA_JvRfcommConnect
+**
+** Description      This function makes an RFCOMM conection to a remote BD
+**                  Address.
+**                  When the connection is initiated or failed to initiate,
+**                  tBTA_JV_RFCOMM_CBACK is called with BTA_JV_RFCOMM_CL_INIT_EVT
+**                  When the connection is established or failed,
+**                  tBTA_JV_RFCOMM_CBACK is called with BTA_JV_RFCOMM_OPEN_EVT
+**
+** Returns          BTA_JV_SUCCESS, if the request is being processed.
+**                  BTA_JV_FAILURE, otherwise.
+**
+*******************************************************************************/
+tBTA_JV_STATUS BTA_JvRfcommConnect(tBTA_SEC sec_mask,
+                           tBTA_JV_ROLE role, UINT8 remote_scn, BD_ADDR peer_bd_addr,
+                           tBTA_JV_RFCOMM_CBACK *p_cback, void* user_data)
+{
+    APPL_TRACE_API("%s", __func__);
+
+    if (p_cback == NULL)
+        return BTA_JV_FAILURE;                  /* Nothing to do */
+
+    tBTA_JV_API_RFCOMM_CONNECT *p_msg =
+        (tBTA_JV_API_RFCOMM_CONNECT *)osi_malloc(sizeof(tBTA_JV_API_RFCOMM_CONNECT));
+    p_msg->hdr.event    = BTA_JV_API_RFCOMM_CONNECT_EVT;
+    p_msg->sec_mask     = sec_mask;
+    p_msg->role         = role;
+    p_msg->remote_scn   = remote_scn;
+    memcpy(p_msg->peer_bd_addr, peer_bd_addr, sizeof(BD_ADDR));
+    p_msg->p_cback      = p_cback;
+    p_msg->user_data    = user_data;
+
+    bta_sys_sendmsg(p_msg);
+
+    return BTA_JV_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         BTA_JvRfcommClose
+**
+** Description      This function closes an RFCOMM connection
+**
+** Returns          BTA_JV_SUCCESS, if the request is being processed.
+**                  BTA_JV_FAILURE, otherwise.
+**
+*******************************************************************************/
+tBTA_JV_STATUS BTA_JvRfcommClose(UINT32 handle, void *user_data)
+{
+    tBTA_JV_STATUS status = BTA_JV_FAILURE;
+    UINT32  hi = ((handle & BTA_JV_RFC_HDL_MASK)&~BTA_JV_RFCOMM_MASK) - 1;
+    UINT32  si = BTA_JV_RFC_HDL_TO_SIDX(handle);
+
+    APPL_TRACE_API("%s", __func__);
+
+    if (hi < BTA_JV_MAX_RFC_CONN && bta_jv_cb.rfc_cb[hi].p_cback &&
+        si < BTA_JV_MAX_RFC_SR_SESSION && bta_jv_cb.rfc_cb[hi].rfc_hdl[si]) {
+        tBTA_JV_API_RFCOMM_CLOSE *p_msg =
+            (tBTA_JV_API_RFCOMM_CLOSE *)osi_malloc(sizeof(tBTA_JV_API_RFCOMM_CLOSE));
+        p_msg->hdr.event = BTA_JV_API_RFCOMM_CLOSE_EVT;
+        p_msg->handle = handle;
+        p_msg->p_cb = &bta_jv_cb.rfc_cb[hi];
+        p_msg->p_pcb = &bta_jv_cb.port_cb[p_msg->p_cb->rfc_hdl[si] - 1];
+        p_msg->user_data = user_data;
+
+        bta_sys_sendmsg(p_msg);
+
+        status = BTA_JV_SUCCESS;
+    }
+
+    return status;
+}
+
+/*******************************************************************************
+**
+** Function         BTA_JvRfcommStartServer
+**
+** Description      This function starts listening for an RFCOMM connection
+**                  request from a remote Bluetooth device.  When the server is
+**                  started successfully, tBTA_JV_RFCOMM_CBACK is called
+**                  with BTA_JV_RFCOMM_START_EVT.
+**                  When the connection is established, tBTA_JV_RFCOMM_CBACK
+**                  is called with BTA_JV_RFCOMM_OPEN_EVT.
+**
+** Returns          BTA_JV_SUCCESS, if the request is being processed.
+**                  BTA_JV_FAILURE, otherwise.
+**
+*******************************************************************************/
+tBTA_JV_STATUS BTA_JvRfcommStartServer(tBTA_SEC sec_mask,
+                           tBTA_JV_ROLE role, UINT8 local_scn, UINT8 max_session,
+                           tBTA_JV_RFCOMM_CBACK *p_cback, void* user_data)
+{
+    APPL_TRACE_API("%s", __func__);
+
+    if (p_cback == NULL)
+        return BTA_JV_FAILURE;                  /* Nothing to do */
+
+    tBTA_JV_API_RFCOMM_SERVER *p_msg =
+        (tBTA_JV_API_RFCOMM_SERVER *)osi_malloc(sizeof(tBTA_JV_API_RFCOMM_SERVER));
+    if (max_session == 0)
+        max_session = 1;
+    if (max_session > BTA_JV_MAX_RFC_SR_SESSION) {
+        APPL_TRACE_DEBUG( "max_session is too big. use max (%d)", max_session, BTA_JV_MAX_RFC_SR_SESSION);
+        max_session = BTA_JV_MAX_RFC_SR_SESSION;
+    }
+    p_msg->hdr.event = BTA_JV_API_RFCOMM_START_SERVER_EVT;
+    p_msg->sec_mask = sec_mask;
+    p_msg->role = role;
+    p_msg->local_scn = local_scn;
+    p_msg->max_session = max_session;
+    p_msg->p_cback = p_cback;
+    p_msg->user_data = user_data; //caller's private data
+
+    bta_sys_sendmsg(p_msg);
+
+    return BTA_JV_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         BTA_JvRfcommStopServer
+**
+** Description      This function stops the RFCOMM server. If the server has an
+**                  active connection, it would be closed.
+**
+** Returns          BTA_JV_SUCCESS, if the request is being processed.
+**                  BTA_JV_FAILURE, otherwise.
+**
+*******************************************************************************/
+tBTA_JV_STATUS BTA_JvRfcommStopServer(UINT32 handle, void * user_data)
+{
+    tBTA_JV_API_RFCOMM_SERVER *p_msg =
+        (tBTA_JV_API_RFCOMM_SERVER *)osi_malloc(sizeof(tBTA_JV_API_RFCOMM_SERVER));
+
+    APPL_TRACE_API("%s", __func__);
+
+    p_msg->hdr.event = BTA_JV_API_RFCOMM_STOP_SERVER_EVT;
+    p_msg->handle = handle;
+    p_msg->user_data = user_data; //caller's private data
+
+    bta_sys_sendmsg(p_msg);
+
+    return BTA_JV_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         BTA_JvRfcommGetPortHdl
+**
+** Description    This function fetches the rfcomm port handle
+**
+** Returns          BTA_JV_SUCCESS, if the request is being processed.
+**                  BTA_JV_FAILURE, otherwise.
+**
+*******************************************************************************/
+UINT16 BTA_JvRfcommGetPortHdl(UINT32 handle)
+{
+    UINT32  hi = ((handle & BTA_JV_RFC_HDL_MASK) & ~BTA_JV_RFCOMM_MASK) - 1;
+    UINT32  si = BTA_JV_RFC_HDL_TO_SIDX(handle);
+
+    if (hi < BTA_JV_MAX_RFC_CONN &&
+        si < BTA_JV_MAX_RFC_SR_SESSION && bta_jv_cb.rfc_cb[hi].rfc_hdl[si])
+        return bta_jv_cb.port_cb[bta_jv_cb.rfc_cb[hi].rfc_hdl[si] - 1].port_handle;
+    else
+        return 0xffff;
+}
+
+/*******************************************************************************
+**
+** Function         BTA_JvRfcommWrite
+**
+** Description      This function writes data to an RFCOMM connection
+**
+** Returns          BTA_JV_SUCCESS, if the request is being processed.
+**                  BTA_JV_FAILURE, otherwise.
+**
+*******************************************************************************/
+tBTA_JV_STATUS BTA_JvRfcommWrite(UINT32 handle, UINT32 req_id)
+{
+    tBTA_JV_STATUS status = BTA_JV_FAILURE;
+    UINT32  hi = ((handle & BTA_JV_RFC_HDL_MASK)&~BTA_JV_RFCOMM_MASK) - 1;
+    UINT32  si = BTA_JV_RFC_HDL_TO_SIDX(handle);
+
+    APPL_TRACE_API("%s", __func__);
+
+    APPL_TRACE_DEBUG( "handle:0x%x, hi:%d, si:%d", handle, hi, si);
+    if (hi < BTA_JV_MAX_RFC_CONN && bta_jv_cb.rfc_cb[hi].p_cback &&
+        si < BTA_JV_MAX_RFC_SR_SESSION && bta_jv_cb.rfc_cb[hi].rfc_hdl[si]) {
+        tBTA_JV_API_RFCOMM_WRITE *p_msg =
+            (tBTA_JV_API_RFCOMM_WRITE *)osi_malloc(sizeof(tBTA_JV_API_RFCOMM_WRITE));
+        p_msg->hdr.event = BTA_JV_API_RFCOMM_WRITE_EVT;
+        p_msg->handle = handle;
+        p_msg->req_id = req_id;
+        p_msg->p_cb = &bta_jv_cb.rfc_cb[hi];
+        p_msg->p_pcb = &bta_jv_cb.port_cb[p_msg->p_cb->rfc_hdl[si] - 1];
+        APPL_TRACE_API( "write ok");
+
+        bta_sys_sendmsg(p_msg);
+        status = BTA_JV_SUCCESS;
+    }
+
+    return status;
+}
+
+
+/*******************************************************************************
+ **
+ ** Function    BTA_JVSetPmProfile
+ **
+ ** Description This function set or free power mode profile for different JV application
+ **
+ ** Parameters:  handle,  JV handle from RFCOMM or L2CAP
+ **              app_id:  app specific pm ID, can be BTA_JV_PM_ALL, see bta_dm_cfg.c for details
+ **              BTA_JV_PM_ID_CLEAR: removes pm management on the handle. init_st is ignored and
+ **              BTA_JV_CONN_CLOSE is called implicitely
+ **              init_st:  state after calling this API. typically it should be BTA_JV_CONN_OPEN
+ **
+ ** Returns      BTA_JV_SUCCESS, if the request is being processed.
+ **              BTA_JV_FAILURE, otherwise.
+ **
+ ** NOTE:        BTA_JV_PM_ID_CLEAR: In general no need to be called as jv pm calls automatically
+ **              BTA_JV_CONN_CLOSE to remove in case of connection close!
+ **
+ *******************************************************************************/
+tBTA_JV_STATUS BTA_JvSetPmProfile(UINT32 handle, tBTA_JV_PM_ID app_id, tBTA_JV_CONN_STATE init_st)
+{
+    tBTA_JV_API_SET_PM_PROFILE *p_msg =
+        (tBTA_JV_API_SET_PM_PROFILE *)osi_malloc(sizeof(tBTA_JV_API_SET_PM_PROFILE));
+
+    APPL_TRACE_API("%s handle:0x%x, app_id:%d", __func__, handle, app_id);
+
+    p_msg->hdr.event = BTA_JV_API_SET_PM_PROFILE_EVT;
+    p_msg->handle = handle;
+    p_msg->app_id = app_id;
+    p_msg->init_st = init_st;
+
+    bta_sys_sendmsg(p_msg);
+
+    return BTA_JV_SUCCESS;
+}
diff --git a/rtkbt/code/bt/bta/jv/bta_jv_cfg.c b/rtkbt/code/bt/bta/jv/bta_jv_cfg.c
new file mode 100755
index 0000000..3f328f0
--- /dev/null
+++ b/rtkbt/code/bt/bta/jv/bta_jv_cfg.c
@@ -0,0 +1,58 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 The Android Open Source Project
+ *  Copyright (C) 2004-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains compile-time configurable constants for advanced
+ *  audio
+ *
+ ******************************************************************************/
+
+#include "bt_common.h"
+#include "bta_api.h"
+#include "bta_jv_api.h"
+
+#ifndef BTA_JV_SDP_DB_SIZE
+#define BTA_JV_SDP_DB_SIZE          4500
+#endif
+
+#ifndef BTA_JV_SDP_RAW_DATA_SIZE
+#define BTA_JV_SDP_RAW_DATA_SIZE    1800
+#endif
+
+/* The platform may choose to use dynamic memory for these data buffers.
+ * p_bta_jv_cfg->p_sdp_db must be allocated/stay allocated
+ * between BTA_JvEnable and BTA_JvDisable
+ * p_bta_jv_cfg->p_sdp_raw_data can be allocated before calling BTA_JvStartDiscovery
+ * it can be de-allocated after the last call to access the database */
+static UINT8 bta_jv_sdp_raw_data[BTA_JV_SDP_RAW_DATA_SIZE];
+static UINT8 __attribute__ ((aligned(4))) bta_jv_sdp_db_data[BTA_JV_SDP_DB_SIZE];
+
+/* JV configuration structure */
+const tBTA_JV_CFG bta_jv_cfg =
+{
+    BTA_JV_SDP_RAW_DATA_SIZE,   /* The size of p_sdp_raw_data */
+    BTA_JV_SDP_DB_SIZE,         /* The size of p_sdp_db_data */
+    bta_jv_sdp_raw_data,        /* The data buffer to keep raw data */
+    (tSDP_DISCOVERY_DB *)bta_jv_sdp_db_data /* The data buffer to keep SDP database */
+};
+
+tBTA_JV_CFG *p_bta_jv_cfg = (tBTA_JV_CFG *) &bta_jv_cfg;
+
+
diff --git a/rtkbt/code/bt/bta/jv/bta_jv_int.h b/rtkbt/code/bt/bta/jv/bta_jv_int.h
new file mode 100755
index 0000000..84580fa
--- /dev/null
+++ b/rtkbt/code/bt/bta/jv/bta_jv_int.h
@@ -0,0 +1,439 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2006-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the private interface file for the BTA Java I/F
+ *
+ ******************************************************************************/
+#ifndef BTA_JV_INT_H
+#define BTA_JV_INT_H
+
+#include "bta_sys.h"
+#include "bta_api.h"
+#include "bta_jv_api.h"
+#include "rfcdefs.h"
+#include "port_api.h"
+
+/*****************************************************************************
+**  Constants
+*****************************************************************************/
+
+enum
+{
+    /* these events are handled by the state machine */
+    BTA_JV_API_ENABLE_EVT = BTA_SYS_EVT_START(BTA_ID_JV),
+    BTA_JV_API_DISABLE_EVT,
+    BTA_JV_API_GET_CHANNEL_EVT,
+    BTA_JV_API_FREE_SCN_EVT,
+    BTA_JV_API_START_DISCOVERY_EVT,
+    BTA_JV_API_CREATE_RECORD_EVT,
+    BTA_JV_API_DELETE_RECORD_EVT,
+    BTA_JV_API_L2CAP_CONNECT_EVT,
+    BTA_JV_API_L2CAP_CLOSE_EVT,
+    BTA_JV_API_L2CAP_START_SERVER_EVT,
+    BTA_JV_API_L2CAP_STOP_SERVER_EVT,
+    BTA_JV_API_L2CAP_READ_EVT,
+    BTA_JV_API_L2CAP_WRITE_EVT,
+    BTA_JV_API_RFCOMM_CONNECT_EVT,
+    BTA_JV_API_RFCOMM_CLOSE_EVT,
+    BTA_JV_API_RFCOMM_START_SERVER_EVT,
+    BTA_JV_API_RFCOMM_STOP_SERVER_EVT,
+    BTA_JV_API_RFCOMM_WRITE_EVT,
+    BTA_JV_API_SET_PM_PROFILE_EVT,
+    BTA_JV_API_PM_STATE_CHANGE_EVT,
+    BTA_JV_API_L2CAP_CONNECT_LE_EVT,
+    BTA_JV_API_L2CAP_START_SERVER_LE_EVT,
+    BTA_JV_API_L2CAP_STOP_SERVER_LE_EVT,
+    BTA_JV_API_L2CAP_WRITE_FIXED_EVT,
+    BTA_JV_API_L2CAP_CLOSE_FIXED_EVT,
+    BTA_JV_MAX_INT_EVT
+};
+
+#ifndef BTA_JV_RFC_EV_MASK
+#define BTA_JV_RFC_EV_MASK (PORT_EV_RXCHAR | PORT_EV_TXEMPTY | PORT_EV_FC | PORT_EV_FCS)
+#endif
+
+/* data type for BTA_JV_API_ENABLE_EVT */
+typedef struct
+{
+    BT_HDR          hdr;
+    tBTA_JV_DM_CBACK   *p_cback;
+} tBTA_JV_API_ENABLE;
+
+/* data type for BTA_JV_API_START_DISCOVERY_EVT */
+typedef struct
+{
+    BT_HDR      hdr;
+    BD_ADDR bd_addr;
+    UINT16 num_uuid;
+    tSDP_UUID uuid_list[BTA_JV_MAX_UUIDS];
+    UINT16 num_attr;
+    UINT16 attr_list[BTA_JV_MAX_ATTRS];
+    void            *user_data;      /* piggyback caller's private data*/
+} tBTA_JV_API_START_DISCOVERY;
+
+enum
+{
+    BTA_JV_PM_FREE_ST = 0, /* empty PM slot */
+    BTA_JV_PM_IDLE_ST,
+    BTA_JV_PM_BUSY_ST
+};
+
+/* BTA JV PM control block */
+typedef struct
+{
+    UINT32          handle;     /* The connection handle */
+    UINT8           state;      /* state: see above enum */
+    tBTA_JV_PM_ID   app_id;     /* JV app specific id indicating power table to use */
+    BD_ADDR         peer_bd_addr;    /* Peer BD address */
+} tBTA_JV_PM_CB;
+
+enum
+{
+    BTA_JV_ST_NONE = 0,
+    BTA_JV_ST_CL_OPENING,
+    BTA_JV_ST_CL_OPEN,
+    BTA_JV_ST_CL_CLOSING,
+    BTA_JV_ST_SR_LISTEN,
+    BTA_JV_ST_SR_OPEN,
+    BTA_JV_ST_SR_CLOSING
+} ;
+typedef UINT8  tBTA_JV_STATE;
+#define BTA_JV_ST_CL_MAX    BTA_JV_ST_CL_CLOSING
+/* JV L2CAP control block */
+typedef struct
+{
+    tBTA_JV_L2CAP_CBACK *p_cback;   /* the callback function */
+    UINT16              psm;        /* the psm used for this server connection */
+    tBTA_JV_STATE       state;      /* the state of this control block */
+    tBTA_SERVICE_ID     sec_id;     /* service id */
+    UINT32              handle;     /* the handle reported to java app (same as gap handle) */
+    BOOLEAN             cong;       /* TRUE, if congested */
+    tBTA_JV_PM_CB      *p_pm_cb;    /* ptr to pm control block, NULL: unused */
+    void                *user_data; /* user data for callback from higher layers */
+} tBTA_JV_L2C_CB;
+
+#define BTA_JV_RFC_HDL_MASK         0xFF
+#define BTA_JV_RFCOMM_MASK          0x80
+#define BTA_JV_ALL_APP_ID           0xFF
+#define BTA_JV_RFC_HDL_TO_SIDX(r)   (((r)&0xFF00) >> 8)
+#define BTA_JV_RFC_H_S_TO_HDL(h, s) ((h)|(s<<8))
+
+/* port control block */
+typedef struct
+{
+    UINT32              handle;     /* the rfcomm session handle at jv */
+    UINT16              port_handle;/* port handle */
+    tBTA_JV_STATE       state;      /* the state of this control block */
+    UINT8               max_sess;   /* max sessions */
+    void                *user_data; /* piggyback caller's private data*/
+    BOOLEAN             cong;       /* TRUE, if congested */
+    tBTA_JV_PM_CB       *p_pm_cb;   /* ptr to pm control block, NULL: unused */
+} tBTA_JV_PCB;
+
+/* JV RFCOMM control block */
+typedef struct
+{
+    tBTA_JV_RFCOMM_CBACK *p_cback;  /* the callback function */
+    UINT16              rfc_hdl[BTA_JV_MAX_RFC_SR_SESSION];
+    tBTA_SERVICE_ID     sec_id;     /* service id */
+    UINT8               handle;     /* index: the handle reported to java app */
+    UINT8               scn;        /* the scn of the server */
+    UINT8               max_sess;   /* max sessions */
+    int                 curr_sess;   /* current sessions count*/
+} tBTA_JV_RFC_CB;
+
+/* data type for BTA_JV_API_L2CAP_CONNECT_EVT & BTA_JV_API_L2CAP_CONNECT_LE_EVT */
+typedef struct
+{
+    BT_HDR              hdr;
+    INT32               type;       /* One of BTA_JV_CONN_TYPE_ */
+    tBTA_SEC            sec_mask;
+    tBTA_JV_ROLE        role;
+    union {
+        UINT16          remote_psm;
+        UINT16          remote_chan;
+    };
+    UINT16              rx_mtu;
+    BD_ADDR             peer_bd_addr;
+    INT32               has_cfg;
+    tL2CAP_CFG_INFO     cfg;
+    INT32               has_ertm_info;
+    tL2CAP_ERTM_INFO    ertm_info;
+    tBTA_JV_L2CAP_CBACK *p_cback;
+    void                *user_data;
+} tBTA_JV_API_L2CAP_CONNECT;
+
+/* data type for BTA_JV_API_L2CAP_SERVER_EVT */
+typedef struct
+{
+    BT_HDR              hdr;
+    INT32               type;       /* One of BTA_JV_CONN_TYPE_ */
+    tBTA_SEC            sec_mask;
+    tBTA_JV_ROLE        role;
+    union {
+        UINT16          local_psm;
+        UINT16          local_chan;
+    };
+    UINT16              rx_mtu;
+    INT32               has_cfg;
+    tL2CAP_CFG_INFO     cfg;
+    INT32               has_ertm_info;
+    tL2CAP_ERTM_INFO    ertm_info;
+    tBTA_JV_L2CAP_CBACK *p_cback;
+    void                *user_data;
+} tBTA_JV_API_L2CAP_SERVER;
+
+/* data type for BTA_JV_API_L2CAP_CLOSE_EVT */
+typedef struct
+{
+    BT_HDR          hdr;
+    UINT32          handle;
+    tBTA_JV_L2C_CB  *p_cb;
+} tBTA_JV_API_L2CAP_CLOSE;
+
+/* data type for BTA_JV_API_L2CAP_READ_EVT */
+typedef struct
+{
+    BT_HDR              hdr;
+    UINT32              handle;
+    UINT32              req_id;
+    tBTA_JV_L2CAP_CBACK *p_cback;
+    UINT8*              p_data;
+    UINT16              len;
+    void                *user_data;
+} tBTA_JV_API_L2CAP_READ;
+
+/* data type for BTA_JV_API_L2CAP_WRITE_EVT */
+typedef struct
+{
+    BT_HDR              hdr;
+    UINT32              handle;
+    UINT32              req_id;
+    tBTA_JV_L2C_CB      *p_cb;
+    UINT8               *p_data;
+    UINT16              len;
+    void                *user_data;
+} tBTA_JV_API_L2CAP_WRITE;
+
+/* data type for BTA_JV_API_L2CAP_WRITE_FIXED_EVT */
+typedef struct
+{
+    BT_HDR              hdr;
+    UINT16              channel;
+    BD_ADDR             addr;
+    UINT32              req_id;
+    tBTA_JV_L2CAP_CBACK *p_cback;
+    UINT8               *p_data;
+    UINT16              len;
+    void                *user_data;
+} tBTA_JV_API_L2CAP_WRITE_FIXED;
+
+/* data type for BTA_JV_API_RFCOMM_CONNECT_EVT */
+typedef struct
+{
+    BT_HDR          hdr;
+    tBTA_SEC        sec_mask;
+    tBTA_JV_ROLE    role;
+    UINT8           remote_scn;
+    BD_ADDR         peer_bd_addr;
+    tBTA_JV_RFCOMM_CBACK *p_cback;
+    void            *user_data;
+} tBTA_JV_API_RFCOMM_CONNECT;
+
+/* data type for BTA_JV_API_RFCOMM_SERVER_EVT */
+typedef struct
+{
+    BT_HDR          hdr;
+    tBTA_SEC        sec_mask;
+    tBTA_JV_ROLE    role;
+    UINT8           local_scn;
+    UINT8           max_session;
+    UINT32          handle;
+    tBTA_JV_RFCOMM_CBACK *p_cback;
+    void            *user_data;
+} tBTA_JV_API_RFCOMM_SERVER;
+
+/* data type for BTA_JV_API_SET_PM_PROFILE_EVT */
+typedef struct
+{
+    BT_HDR              hdr;
+    UINT32              handle;
+    tBTA_JV_PM_ID       app_id;
+    tBTA_JV_CONN_STATE  init_st;
+} tBTA_JV_API_SET_PM_PROFILE;
+
+/* data type for BTA_JV_API_PM_STATE_CHANGE_EVT */
+typedef struct
+{
+    BT_HDR              hdr;
+    tBTA_JV_PM_CB       *p_cb;
+    tBTA_JV_CONN_STATE  state;
+} tBTA_JV_API_PM_STATE_CHANGE;
+
+/* data type for BTA_JV_API_RFCOMM_WRITE_EVT */
+typedef struct
+{
+    BT_HDR          hdr;
+    UINT32          handle;
+    UINT32          req_id;
+    UINT8           *p_data;
+    int             len;
+    tBTA_JV_RFC_CB  *p_cb;
+    tBTA_JV_PCB     *p_pcb;
+} tBTA_JV_API_RFCOMM_WRITE;
+
+/* data type for BTA_JV_API_RFCOMM_CLOSE_EVT */
+typedef struct
+{
+    BT_HDR          hdr;
+    UINT32          handle;
+    tBTA_JV_RFC_CB  *p_cb;
+    tBTA_JV_PCB     *p_pcb;
+    void            *user_data;
+} tBTA_JV_API_RFCOMM_CLOSE;
+
+/* data type for BTA_JV_API_CREATE_RECORD_EVT */
+typedef struct
+{
+    BT_HDR      hdr;
+    void        *user_data;
+} tBTA_JV_API_CREATE_RECORD;
+
+/* data type for BTA_JV_API_ADD_ATTRIBUTE_EVT */
+typedef struct
+{
+    BT_HDR      hdr;
+    UINT32      handle;
+    UINT16      attr_id;
+    UINT8       *p_value;
+    INT32       value_size;
+} tBTA_JV_API_ADD_ATTRIBUTE;
+
+/* data type for BTA_JV_API_FREE_SCN_EVT */
+typedef struct
+{
+    BT_HDR      hdr;
+    INT32       type;       /* One of BTA_JV_CONN_TYPE_ */
+    UINT16      scn;
+} tBTA_JV_API_FREE_CHANNEL;
+
+/* data type for BTA_JV_API_ALLOC_CHANNEL_EVT */
+typedef struct
+{
+    BT_HDR      hdr;
+    INT32       type;       /* One of BTA_JV_CONN_TYPE_ */
+    INT32       channel;    /* optionally request a specific channel */
+    void        *user_data;
+} tBTA_JV_API_ALLOC_CHANNEL;
+/* union of all data types */
+typedef union
+{
+    /* GKI event buffer header */
+    BT_HDR                          hdr;
+    tBTA_JV_API_ENABLE              enable;
+    tBTA_JV_API_START_DISCOVERY     start_discovery;
+    tBTA_JV_API_ALLOC_CHANNEL       alloc_channel;
+    tBTA_JV_API_FREE_CHANNEL        free_channel;
+    tBTA_JV_API_CREATE_RECORD       create_record;
+    tBTA_JV_API_ADD_ATTRIBUTE       add_attr;
+    tBTA_JV_API_L2CAP_CONNECT       l2cap_connect;
+    tBTA_JV_API_L2CAP_READ          l2cap_read;
+    tBTA_JV_API_L2CAP_WRITE         l2cap_write;
+    tBTA_JV_API_L2CAP_CLOSE         l2cap_close;
+    tBTA_JV_API_L2CAP_SERVER        l2cap_server;
+    tBTA_JV_API_RFCOMM_CONNECT      rfcomm_connect;
+    tBTA_JV_API_RFCOMM_WRITE        rfcomm_write;
+    tBTA_JV_API_SET_PM_PROFILE      set_pm;
+    tBTA_JV_API_PM_STATE_CHANGE     change_pm_state;
+    tBTA_JV_API_RFCOMM_CLOSE        rfcomm_close;
+    tBTA_JV_API_RFCOMM_SERVER       rfcomm_server;
+    tBTA_JV_API_L2CAP_WRITE_FIXED   l2cap_write_fixed;
+} tBTA_JV_MSG;
+
+/* JV control block */
+typedef struct
+{
+    /* the SDP handle reported to JV user is the (index + 1) to sdp_handle[].
+     * if sdp_handle[i]==0, it's not used.
+     * otherwise sdp_handle[i] is the stack SDP handle. */
+    UINT32                  sdp_handle[BTA_JV_MAX_SDP_REC]; /* SDP records created */
+    UINT8                   *p_sel_raw_data;/* the raw data of last service select */
+    tBTA_JV_DM_CBACK        *p_dm_cback;
+    tBTA_JV_L2C_CB          l2c_cb[BTA_JV_MAX_L2C_CONN];    /* index is GAP handle (index) */
+    tBTA_JV_RFC_CB          rfc_cb[BTA_JV_MAX_RFC_CONN];
+    tBTA_JV_PCB             port_cb[MAX_RFC_PORTS];         /* index of this array is
+                                                               the port_handle, */
+    UINT8                   sec_id[BTA_JV_NUM_SERVICE_ID];  /* service ID */
+    BOOLEAN                 scn[BTA_JV_MAX_SCN];            /* SCN allocated by java */
+    UINT16                  free_psm_list[BTA_JV_MAX_L2C_CONN];  /* PSMs freed by java
+                                                                    (can be reused) */
+    UINT8                   sdp_active;                     /* see BTA_JV_SDP_ACT_* */
+    tSDP_UUID               uuid;                           /* current uuid of sdp discovery*/
+    tBTA_JV_PM_CB           pm_cb[BTA_JV_PM_MAX_NUM];       /* PM on a per JV handle bases */
+} tBTA_JV_CB;
+
+enum
+{
+    BTA_JV_SDP_ACT_NONE = 0,
+    BTA_JV_SDP_ACT_YES,     /* waiting for SDP result */
+    BTA_JV_SDP_ACT_CANCEL   /* waiting for cancel complete */
+};
+
+/* JV control block */
+#if BTA_DYNAMIC_MEMORY == FALSE
+extern tBTA_JV_CB bta_jv_cb;
+#else
+extern tBTA_JV_CB *bta_jv_cb_ptr;
+#define bta_jv_cb (*bta_jv_cb_ptr)
+#endif
+
+/* config struct */
+extern tBTA_JV_CFG *p_bta_jv_cfg;
+
+extern BOOLEAN bta_jv_sm_execute(BT_HDR *p_msg);
+
+extern void bta_jv_enable (tBTA_JV_MSG *p_data);
+extern void bta_jv_disable (tBTA_JV_MSG *p_data);
+extern void bta_jv_get_channel_id (tBTA_JV_MSG *p_data);
+extern void bta_jv_free_scn (tBTA_JV_MSG *p_data);
+extern void bta_jv_start_discovery (tBTA_JV_MSG *p_data);
+extern void bta_jv_create_record (tBTA_JV_MSG *p_data);
+extern void bta_jv_delete_record (tBTA_JV_MSG *p_data);
+extern void bta_jv_l2cap_connect (tBTA_JV_MSG *p_data);
+extern void bta_jv_l2cap_close (tBTA_JV_MSG *p_data);
+extern void bta_jv_l2cap_start_server (tBTA_JV_MSG *p_data);
+extern void bta_jv_l2cap_stop_server (tBTA_JV_MSG *p_data);
+extern void bta_jv_l2cap_read (tBTA_JV_MSG *p_data);
+extern void bta_jv_l2cap_write (tBTA_JV_MSG *p_data);
+extern void bta_jv_rfcomm_connect (tBTA_JV_MSG *p_data);
+extern void bta_jv_rfcomm_close (tBTA_JV_MSG *p_data);
+extern void bta_jv_rfcomm_start_server (tBTA_JV_MSG *p_data);
+extern void bta_jv_rfcomm_stop_server (tBTA_JV_MSG *p_data);
+extern void bta_jv_rfcomm_read (tBTA_JV_MSG *p_data);
+extern void bta_jv_rfcomm_write (tBTA_JV_MSG *p_data);
+extern void bta_jv_set_pm_profile (tBTA_JV_MSG *p_data);
+extern void bta_jv_change_pm_state(tBTA_JV_MSG *p_data);
+extern void bta_jv_l2cap_connect_le (tBTA_JV_MSG *p_data);
+extern void bta_jv_l2cap_start_server_le (tBTA_JV_MSG *p_data);
+extern void bta_jv_l2cap_stop_server_le (tBTA_JV_MSG *p_data);
+extern void bta_jv_l2cap_write_fixed (tBTA_JV_MSG *p_data);
+extern void bta_jv_l2cap_close_fixed (tBTA_JV_MSG *p_data);
+
+#endif /* BTA_JV_INT_H */
diff --git a/rtkbt/code/bt/bta/jv/bta_jv_main.c b/rtkbt/code/bt/bta/jv/bta_jv_main.c
new file mode 100755
index 0000000..8b69774
--- /dev/null
+++ b/rtkbt/code/bt/bta/jv/bta_jv_main.c
@@ -0,0 +1,97 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the main implementation file for the BTA Java I/F
+ *
+ ******************************************************************************/
+
+#include "bta_api.h"
+#include "bta_sys.h"
+#include "bta_jv_api.h"
+#include "bta_jv_int.h"
+
+/*****************************************************************************
+** Constants and types
+*****************************************************************************/
+
+#if BTA_DYNAMIC_MEMORY == FALSE
+tBTA_JV_CB bta_jv_cb;
+#endif
+
+/* state machine action enumeration list */
+#define BTA_JV_NUM_ACTIONS  (BTA_JV_MAX_INT_EVT & 0x00ff)
+
+/* type for action functions */
+typedef void (*tBTA_JV_ACTION)(tBTA_JV_MSG *p_data);
+
+/* action function list */
+const tBTA_JV_ACTION bta_jv_action[] =
+{
+    bta_jv_enable,                  /* BTA_JV_API_ENABLE_EVT */
+    bta_jv_disable,                 /* BTA_JV_API_DISABLE_EVT */
+    bta_jv_get_channel_id,          /* BTA_JV_API_GET_CHANNEL_EVT */
+    bta_jv_free_scn,                /* BTA_JV_API_FREE_SCN_EVT */
+    bta_jv_start_discovery,         /* BTA_JV_API_START_DISCOVERY_EVT */
+    bta_jv_create_record,           /* BTA_JV_API_CREATE_RECORD_EVT */
+    bta_jv_delete_record,           /* BTA_JV_API_DELETE_RECORD_EVT */
+    bta_jv_l2cap_connect,           /* BTA_JV_API_L2CAP_CONNECT_EVT */
+    bta_jv_l2cap_close,             /* BTA_JV_API_L2CAP_CLOSE_EVT */
+    bta_jv_l2cap_start_server,      /* BTA_JV_API_L2CAP_START_SERVER_EVT */
+    bta_jv_l2cap_stop_server,       /* BTA_JV_API_L2CAP_STOP_SERVER_EVT */
+    bta_jv_l2cap_read,              /* BTA_JV_API_L2CAP_READ_EVT */
+    bta_jv_l2cap_write,             /* BTA_JV_API_L2CAP_WRITE_EVT */
+    bta_jv_rfcomm_connect,          /* BTA_JV_API_RFCOMM_CONNECT_EVT */
+    bta_jv_rfcomm_close,            /* BTA_JV_API_RFCOMM_CLOSE_EVT */
+    bta_jv_rfcomm_start_server,     /* BTA_JV_API_RFCOMM_START_SERVER_EVT */
+    bta_jv_rfcomm_stop_server,      /* BTA_JV_API_RFCOMM_STOP_SERVER_EVT */
+    bta_jv_rfcomm_write,            /* BTA_JV_API_RFCOMM_WRITE_EVT */
+    bta_jv_set_pm_profile,          /* BTA_JV_API_SET_PM_PROFILE_EVT */
+    bta_jv_change_pm_state,         /* BTA_JV_API_PM_STATE_CHANGE_EVT */
+    bta_jv_l2cap_connect_le,        /* BTA_JV_API_L2CAP_CONNECT_LE_EVT */
+    bta_jv_l2cap_start_server_le,   /* BTA_JV_API_L2CAP_START_SERVER_LE_EVT */
+    bta_jv_l2cap_stop_server_le,    /* BTA_JV_API_L2CAP_STOP_SERVER_LE_EVT */
+    bta_jv_l2cap_write_fixed,       /* BTA_JV_API_L2CAP_WRITE_FIXED_EVT */
+    bta_jv_l2cap_close_fixed,       /*  BTA_JV_API_L2CAP_CLOSE_FIXED_EVT */
+};
+
+/*******************************************************************************
+**
+** Function         bta_jv_sm_execute
+**
+** Description      State machine event handling function for JV
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+BOOLEAN bta_jv_sm_execute(BT_HDR *p_msg)
+{
+    BOOLEAN ret = FALSE;
+    UINT16 action = (p_msg->event & 0x00ff);
+    /* execute action functions */
+
+    if(action < BTA_JV_NUM_ACTIONS)
+    {
+        (*bta_jv_action[action])((tBTA_JV_MSG*)p_msg);
+        ret = TRUE;
+    }
+
+    return(ret);
+}
diff --git a/rtkbt/code/bt/bta/mce/bta_mce_act.c b/rtkbt/code/bt/bta/mce/bta_mce_act.c
new file mode 100755
index 0000000..9d3d5fd
--- /dev/null
+++ b/rtkbt/code/bt/bta/mce/bta_mce_act.c
@@ -0,0 +1,185 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 The Android Open Source Project
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains action functions for MCE.
+ *
+ ******************************************************************************/
+
+#include <hardware/bluetooth.h>
+#include <arpa/inet.h>
+
+#include "bt_types.h"
+#include "bt_common.h"
+#include "utl.h"
+#include "bta_sys.h"
+#include "bta_api.h"
+#include "bta_mce_api.h"
+#include "bta_mce_int.h"
+#include "btm_api.h"
+#include "btm_int.h"
+#include "sdp_api.h"
+#include <string.h>
+
+/*****************************************************************************
+**  Constants
+*****************************************************************************/
+
+static const tBT_UUID bta_mce_mas_uuid = {
+    .len = 2,
+    .uu.uuid16 = UUID_SERVCLASS_MESSAGE_ACCESS
+};
+
+/*******************************************************************************
+**
+** Function     bta_mce_search_cback
+**
+** Description  Callback from btm after search is completed
+**
+** Returns      void
+**
+*******************************************************************************/
+
+static void bta_mce_search_cback(UINT16 result, void * user_data)
+{
+    tSDP_DISC_REC *p_rec = NULL;
+    tBTA_MCE_MAS_DISCOVERY_COMP evt_data;
+    int found = 0;
+
+    APPL_TRACE_DEBUG("bta_mce_start_discovery_cback res: 0x%x", result);
+
+    bta_mce_cb.sdp_active = BTA_MCE_SDP_ACT_NONE;
+
+    if (bta_mce_cb.p_dm_cback == NULL) return;
+
+    evt_data.status = BTA_MCE_FAILURE;
+    bdcpy(evt_data.remote_addr, bta_mce_cb.remote_addr);
+    evt_data.num_mas = 0;
+
+    if (result == SDP_SUCCESS || result == SDP_DB_FULL)
+    {
+        do
+        {
+            tSDP_DISC_ATTR *p_attr;
+            tSDP_PROTOCOL_ELEM pe;
+
+            p_rec = SDP_FindServiceUUIDInDb(p_bta_mce_cfg->p_sdp_db, (tBT_UUID*) &bta_mce_mas_uuid, p_rec);
+
+            APPL_TRACE_DEBUG("p_rec:%p", p_rec);
+
+            if (p_rec == NULL)
+                break;
+
+            if (!SDP_FindProtocolListElemInRec(p_rec, UUID_PROTOCOL_RFCOMM, &pe))
+                continue;
+
+            evt_data.mas[found].scn = pe.params[0];
+
+            if ((p_attr = SDP_FindAttributeInRec(p_rec, ATTR_ID_SERVICE_NAME)) == NULL)
+                continue;
+
+            evt_data.mas[found].p_srv_name = (char *) p_attr->attr_value.v.array;
+            evt_data.mas[found].srv_name_len= SDP_DISC_ATTR_LEN(p_attr->attr_len_type);
+
+            if ((p_attr = SDP_FindAttributeInRec(p_rec, ATTR_ID_MAS_INSTANCE_ID)) == NULL)
+                break;
+
+                 evt_data.mas[found].instance_id = p_attr->attr_value.v.u8;
+
+            if ((p_attr = SDP_FindAttributeInRec(p_rec, ATTR_ID_SUPPORTED_MSG_TYPE)) == NULL)
+                break;
+
+            evt_data.mas[found].msg_type = p_attr->attr_value.v.u8;
+
+            found++;
+        } while (p_rec != NULL && found < BTA_MCE_MAX_MAS_INSTANCES);
+
+        evt_data.num_mas = found;
+        evt_data.status = BTA_MCE_SUCCESS;
+    }
+
+    bta_mce_cb.p_dm_cback(BTA_MCE_MAS_DISCOVERY_COMP_EVT, (tBTA_MCE*) &evt_data, user_data);
+}
+
+/*******************************************************************************
+**
+** Function     bta_mce_enable
+**
+** Description  Initializes the MCE I/F
+**
+** Returns      void
+**
+*******************************************************************************/
+void bta_mce_enable(tBTA_MCE_MSG *p_data)
+{
+    tBTA_MCE_STATUS status = BTA_MCE_SUCCESS;
+    bta_mce_cb.p_dm_cback = p_data->enable.p_cback;
+    bta_mce_cb.p_dm_cback(BTA_MCE_ENABLE_EVT, (tBTA_MCE *)&status, NULL);
+}
+
+/*******************************************************************************
+**
+** Function     bta_mce_get_remote_mas_instances
+**
+** Description  Discovers MAS instances on remote device
+**
+** Returns      void
+**
+*******************************************************************************/
+void bta_mce_get_remote_mas_instances(tBTA_MCE_MSG *p_data)
+{
+    if(p_data == NULL)
+    {
+    APPL_TRACE_DEBUG("MCE control block handle is null");
+    return;
+    }
+    tBTA_MCE_STATUS status = BTA_MCE_FAILURE;
+
+    APPL_TRACE_DEBUG("%s in, sdp_active:%d", __FUNCTION__, bta_mce_cb.sdp_active);
+
+    if (bta_mce_cb.sdp_active != BTA_MCE_SDP_ACT_NONE)
+    {
+        /* SDP is still in progress */
+        status = BTA_MCE_BUSY;
+        if(bta_mce_cb.p_dm_cback)
+            bta_mce_cb.p_dm_cback(BTA_MCE_MAS_DISCOVERY_COMP_EVT, (tBTA_MCE *)&status, NULL);
+
+        return;
+    }
+
+    bta_mce_cb.sdp_active = BTA_MCE_SDP_ACT_YES;
+    bdcpy(bta_mce_cb.remote_addr, p_data->get_rmt_mas.bd_addr);
+
+    SDP_InitDiscoveryDb (p_bta_mce_cfg->p_sdp_db, p_bta_mce_cfg->sdp_db_size, 1,
+                                (tBT_UUID*) &bta_mce_mas_uuid, 0, NULL);
+
+    if (!SDP_ServiceSearchAttributeRequest2(p_data->get_rmt_mas.bd_addr, p_bta_mce_cfg->p_sdp_db,
+                                                bta_mce_search_cback, NULL))
+    {
+        bta_mce_cb.sdp_active = BTA_MCE_SDP_ACT_NONE;
+
+        /* failed to start SDP. report the failure right away */
+        if (bta_mce_cb.p_dm_cback)
+            bta_mce_cb.p_dm_cback(BTA_MCE_MAS_DISCOVERY_COMP_EVT, (tBTA_MCE *)&status, NULL);
+    }
+    /*
+    else report the result when the cback is called
+    */
+}
diff --git a/rtkbt/code/bt/bta/mce/bta_mce_api.c b/rtkbt/code/bt/bta/mce/bta_mce_api.c
new file mode 100755
index 0000000..8967605
--- /dev/null
+++ b/rtkbt/code/bt/bta/mce/bta_mce_api.c
@@ -0,0 +1,111 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 The Android Open Source Project
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the implementation of the API for MCE subsystem
+ *
+ ******************************************************************************/
+
+#include "bta_api.h"
+#include "bt_types.h"
+#include "bta_sys.h"
+#include "bta_mce_api.h"
+#include "bta_mce_int.h"
+#include "bt_common.h"
+#include <string.h>
+#include "port_api.h"
+#include "sdp_api.h"
+
+/*****************************************************************************
+**  Constants
+*****************************************************************************/
+
+static const tBTA_SYS_REG bta_mce_reg =
+{
+    bta_mce_sm_execute,
+    NULL
+};
+
+/*******************************************************************************
+**
+** Function         BTA_MceEnable
+**
+** Description      Enable the MCE I/F service. When the enable
+**                  operation is complete the callback function will be
+**                  called with a BTA_MCE_ENABLE_EVT. This function must
+**                  be called before other functions in the MCE API are
+**                  called.
+**
+** Returns          BTA_MCE_SUCCESS if successful.
+**                  BTA_MCE_FAIL if internal failure.
+**
+*******************************************************************************/
+tBTA_MCE_STATUS BTA_MceEnable(tBTA_MCE_DM_CBACK *p_cback)
+{
+    tBTA_MCE_STATUS status = BTA_MCE_FAILURE;
+
+    APPL_TRACE_API("%", __func__);
+
+    if (p_cback && FALSE == bta_sys_is_register(BTA_ID_MCE)) {
+        memset(&bta_mce_cb, 0, sizeof(tBTA_MCE_CB));
+
+        /* register with BTA system manager */
+        bta_sys_register(BTA_ID_MCE, &bta_mce_reg);
+
+        if (p_cback) {
+            tBTA_MCE_API_ENABLE *p_buf =
+                (tBTA_MCE_API_ENABLE *)osi_malloc(sizeof(tBTA_MCE_API_ENABLE));
+            p_buf->hdr.event = BTA_MCE_API_ENABLE_EVT;
+            p_buf->p_cback = p_cback;
+            bta_sys_sendmsg(p_buf);
+            status = BTA_MCE_SUCCESS;
+        }
+    }
+
+    return status;
+}
+
+/*******************************************************************************
+**
+** Function         BTA_MceGetRemoteMasInstances
+**
+** Description      This function performs service discovery for the MAS service
+**                  by the given peer device. When the operation is completed
+**                  the tBTA_MCE_DM_CBACK callback function will be  called with
+**                  a BTA_MCE_MAS_DISCOVERY_COMP_EVT.
+**
+** Returns          BTA_MCE_SUCCESS, if the request is being processed.
+**                  BTA_MCE_FAILURE, otherwise.
+**
+*******************************************************************************/
+tBTA_MCE_STATUS BTA_MceGetRemoteMasInstances(BD_ADDR bd_addr)
+{
+    tBTA_MCE_API_GET_REMOTE_MAS_INSTANCES *p_msg =
+        (tBTA_MCE_API_GET_REMOTE_MAS_INSTANCES *)osi_malloc(sizeof(tBTA_MCE_API_GET_REMOTE_MAS_INSTANCES));
+
+    APPL_TRACE_API("%s", __func__);
+
+    p_msg->hdr.event = BTA_MCE_API_GET_REMOTE_MAS_INSTANCES_EVT;
+    bdcpy(p_msg->bd_addr, bd_addr);
+
+    bta_sys_sendmsg(p_msg);
+
+    return BTA_MCE_SUCCESS;
+}
diff --git a/rtkbt/code/bt/bta/mce/bta_mce_cfg.c b/rtkbt/code/bt/bta/mce/bta_mce_cfg.c
new file mode 100755
index 0000000..45deeed
--- /dev/null
+++ b/rtkbt/code/bt/bta/mce/bta_mce_cfg.c
@@ -0,0 +1,44 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 The Android Open Source Project
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains compile-time configurable constants for MCE
+ *
+ ******************************************************************************/
+
+#include "bt_common.h"
+#include "bta_api.h"
+#include "bt_types.h"
+#include "bta_mce_api.h"
+
+#ifndef BTA_MCE_SDP_DB_SIZE
+#define BTA_MCE_SDP_DB_SIZE  4500
+#endif
+
+static UINT8 __attribute__ ((aligned(4))) bta_mce_sdp_db_data[BTA_MCE_SDP_DB_SIZE];
+
+/* MCE configuration structure */
+const tBTA_MCE_CFG bta_mce_cfg =
+{
+    BTA_MCE_SDP_DB_SIZE,
+    (tSDP_DISCOVERY_DB *)bta_mce_sdp_db_data /* The data buffer to keep SDP database */
+};
+
+tBTA_MCE_CFG *p_bta_mce_cfg = (tBTA_MCE_CFG *) &bta_mce_cfg;
diff --git a/rtkbt/code/bt/bta/mce/bta_mce_int.h b/rtkbt/code/bt/bta/mce/bta_mce_int.h
new file mode 100755
index 0000000..9032f6a
--- /dev/null
+++ b/rtkbt/code/bt/bta/mce/bta_mce_int.h
@@ -0,0 +1,97 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 The Android Open Source Project
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the private interface file for the BTA MCE I/F
+ *
+ ******************************************************************************/
+#ifndef BTA_MCE_INT_H
+#define BTA_MCE_INT_H
+
+#include "bta_sys.h"
+#include "bta_api.h"
+#include "bta_mce_api.h"
+
+/*****************************************************************************
+**  Constants
+*****************************************************************************/
+
+enum
+{
+    /* these events are handled by the state machine */
+    BTA_MCE_API_ENABLE_EVT = BTA_SYS_EVT_START(BTA_ID_MCE),
+    BTA_MCE_API_GET_REMOTE_MAS_INSTANCES_EVT,
+    BTA_MCE_MAX_INT_EVT
+};
+
+/* data type for BTA_MCE_API_ENABLE_EVT */
+typedef struct
+{
+    BT_HDR             hdr;
+    tBTA_MCE_DM_CBACK  *p_cback;
+} tBTA_MCE_API_ENABLE;
+
+/* data type for BTA_MCE_API_GET_REMOTE_MAS_INSTANCES_EVT */
+typedef struct
+{
+    BT_HDR   hdr;
+    BD_ADDR  bd_addr;
+} tBTA_MCE_API_GET_REMOTE_MAS_INSTANCES;
+
+/* union of all data types */
+typedef union
+{
+    /* GKI event buffer header */
+    BT_HDR                                 hdr;
+    tBTA_MCE_API_ENABLE                    enable;
+    tBTA_MCE_API_GET_REMOTE_MAS_INSTANCES  get_rmt_mas;
+} tBTA_MCE_MSG;
+
+/* MCE control block */
+typedef struct
+{
+    UINT8              sdp_active;  /* see BTA_MCE_SDP_ACT_* */
+    BD_ADDR            remote_addr;
+    tBTA_MCE_DM_CBACK  *p_dm_cback;
+} tBTA_MCE_CB;
+
+enum
+{
+    BTA_MCE_SDP_ACT_NONE = 0,
+    BTA_MCE_SDP_ACT_YES       /* waiting for SDP result */
+};
+
+/* MCE control block */
+#if BTA_DYNAMIC_MEMORY == FALSE
+extern tBTA_MCE_CB bta_mce_cb;
+#else
+extern tBTA_MCE_CB *bta_mce_cb_ptr;
+#define bta_mce_cb (*bta_mce_cb_ptr)
+#endif
+
+/* config struct */
+extern tBTA_MCE_CFG *p_bta_mce_cfg;
+
+extern BOOLEAN bta_mce_sm_execute(BT_HDR *p_msg);
+
+extern void bta_mce_enable (tBTA_MCE_MSG *p_data);
+extern void bta_mce_get_remote_mas_instances (tBTA_MCE_MSG *p_data);
+
+#endif /* BTA_MCE_INT_H */
diff --git a/rtkbt/code/bt/bta/mce/bta_mce_main.c b/rtkbt/code/bt/bta/mce/bta_mce_main.c
new file mode 100755
index 0000000..a0536ff
--- /dev/null
+++ b/rtkbt/code/bt/bta/mce/bta_mce_main.c
@@ -0,0 +1,78 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 The Android Open Source Project
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the main implementation file for the BTA MCE I/F
+ *
+ ******************************************************************************/
+
+#include <stddef.h>
+#include "bta_api.h"
+#include "bta_sys.h"
+#include "bta_mce_api.h"
+#include "bta_mce_int.h"
+
+/*****************************************************************************
+** Constants and types
+*****************************************************************************/
+
+#if BTA_DYNAMIC_MEMORY == FALSE
+tBTA_MCE_CB bta_mce_cb;
+#endif
+
+/* state machine action enumeration list */
+#define BTA_MCE_NUM_ACTIONS  (BTA_MCE_MAX_INT_EVT & 0x00ff)
+
+/* type for action functions */
+typedef void (*tBTA_MCE_ACTION)(tBTA_MCE_MSG *p_data);
+
+/* action function list */
+const tBTA_MCE_ACTION bta_mce_action[] =
+{
+    bta_mce_enable,                    /* BTA_MCE_API_ENABLE_EVT */
+    bta_mce_get_remote_mas_instances,  /* BTA_MCE_API_GET_REMOTE_MAS_INSTANCES_EVT */
+};
+
+/*******************************************************************************
+**
+** Function         bta_mce_sm_execute
+**
+** Description      State machine event handling function for MCE
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+BOOLEAN bta_mce_sm_execute(BT_HDR *p_msg)
+{
+    if(p_msg == NULL) return FALSE;
+
+    BOOLEAN ret = FALSE;
+    UINT16 action = (p_msg->event & 0x00ff);
+
+    /* execute action functions */
+    if(action < BTA_MCE_NUM_ACTIONS)
+    {
+        (*bta_mce_action[action])((tBTA_MCE_MSG*)p_msg);
+        ret = TRUE;
+    }
+
+    return(ret);
+}
diff --git a/rtkbt/code/bt/bta/pan/bta_pan_act.c b/rtkbt/code/bt/bta/pan/bta_pan_act.c
new file mode 100755
index 0000000..1995478
--- /dev/null
+++ b/rtkbt/code/bt/bta/pan/bta_pan_act.c
@@ -0,0 +1,769 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2004-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains the pan action functions for the state machine.
+ *
+ ******************************************************************************/
+
+#include "bt_target.h"
+
+#if defined(PAN_INCLUDED) && (PAN_INCLUDED == TRUE)
+
+#include "bta_api.h"
+#include "bta_sys.h"
+#include "bt_common.h"
+#include "pan_api.h"
+#include "bta_pan_api.h"
+#include "bta_pan_int.h"
+#include "bta_pan_co.h"
+#include <string.h>
+#include "utl.h"
+
+
+/* RX and TX data flow mask */
+#define BTA_PAN_RX_MASK              0x0F
+#define BTA_PAN_TX_MASK              0xF0
+
+/*******************************************************************************
+ **
+ ** Function    bta_pan_pm_conn_busy
+ **
+ ** Description set pan pm connection busy state
+ **
+ ** Params      p_scb: state machine control block of pan connection
+ **
+ ** Returns     void
+ **
+ *******************************************************************************/
+static void bta_pan_pm_conn_busy(tBTA_PAN_SCB *p_scb)
+{
+    if ((p_scb != NULL) && (p_scb->state != BTA_PAN_IDLE_ST))
+        bta_sys_busy(BTA_ID_PAN, p_scb->app_id, p_scb->bd_addr);
+}
+
+/*******************************************************************************
+ **
+ ** Function    bta_pan_pm_conn_idle
+ **
+ ** Description set pan pm connection idle state
+ **
+ ** Params      p_scb: state machine control block of pan connection
+ **
+ ** Returns     void
+ **
+ *******************************************************************************/
+static void bta_pan_pm_conn_idle(tBTA_PAN_SCB *p_scb)
+{
+    if ((p_scb != NULL) && (p_scb->state != BTA_PAN_IDLE_ST))
+        bta_sys_idle(BTA_ID_PAN, p_scb->app_id, p_scb->bd_addr);
+}
+
+/*******************************************************************************
+**
+** Function         bta_pan_conn_state_cback
+**
+** Description      Connection state callback from Pan profile
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_pan_conn_state_cback(UINT16 handle, BD_ADDR bd_addr, tPAN_RESULT state,
+                                     BOOLEAN is_role_change, UINT8 src_role, UINT8 dst_role)
+{
+    tBTA_PAN_SCB *p_scb;
+    tBTA_PAN_CONN *p_buf = (tBTA_PAN_CONN *)osi_malloc(sizeof(tBTA_PAN_CONN));
+
+    if ((state == PAN_SUCCESS) && !is_role_change) {
+        p_buf->hdr.event = BTA_PAN_CONN_OPEN_EVT;
+        if ((p_scb = bta_pan_scb_by_handle(handle)) == NULL) {
+            /* allocate an scb */
+            p_scb = bta_pan_scb_alloc();
+        }
+        /* we have exceeded maximum number of connections */
+        if (!p_scb) {
+            PAN_Disconnect (handle);
+            return;
+        }
+
+        p_scb->handle = handle;
+        p_scb->local_role = src_role;
+        p_scb->peer_role = dst_role;
+        p_scb->pan_flow_enable = TRUE;
+        bdcpy(p_scb->bd_addr, bd_addr);
+        p_scb->data_queue = fixed_queue_new(SIZE_MAX);
+
+        if (src_role == PAN_ROLE_CLIENT)
+            p_scb->app_id = bta_pan_cb.app_id[0];
+        else if (src_role == PAN_ROLE_GN_SERVER)
+            p_scb->app_id = bta_pan_cb.app_id[1];
+        else if (src_role == PAN_ROLE_NAP_SERVER)
+            p_scb->app_id = bta_pan_cb.app_id[2];
+    }
+    else if ((state != PAN_SUCCESS) && !is_role_change) {
+        p_buf->hdr.event = BTA_PAN_CONN_CLOSE_EVT;
+    } else {
+        return;
+    }
+
+    p_buf->result = state;
+    p_buf->hdr.layer_specific = handle;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         bta_pan_data_flow_cb
+**
+** Description      Data flow status callback from PAN
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_pan_data_flow_cb(UINT16 handle, tPAN_RESULT result)
+{
+    tBTA_PAN_SCB *p_scb;
+
+    if ((p_scb = bta_pan_scb_by_handle(handle)) == NULL)
+        return;
+
+    if (result == PAN_TX_FLOW_ON) {
+        BT_HDR *p_buf = (BT_HDR *) osi_malloc(sizeof(BT_HDR));
+        p_buf->layer_specific = handle;
+        p_buf->event = BTA_PAN_BNEP_FLOW_ENABLE_EVT;
+        bta_sys_sendmsg(p_buf);
+        bta_pan_co_rx_flow(handle, p_scb->app_id, TRUE);
+    } else if (result == PAN_TX_FLOW_OFF) {
+        p_scb->pan_flow_enable = FALSE;
+        bta_pan_co_rx_flow(handle, p_scb->app_id, FALSE);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_pan_data_buf_ind_cback
+**
+** Description      data indication callback from pan profile
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_pan_data_buf_ind_cback(UINT16 handle, BD_ADDR src, BD_ADDR dst, UINT16 protocol, BT_HDR *p_buf,
+                                   BOOLEAN ext, BOOLEAN forward)
+{
+    tBTA_PAN_SCB *p_scb;
+    BT_HDR *p_new_buf;
+
+    if (sizeof(tBTA_PAN_DATA_PARAMS) > p_buf->offset) {
+        /* offset smaller than data structure in front of actual data */
+        p_new_buf = (BT_HDR *)osi_malloc(PAN_BUF_SIZE);
+        memcpy((UINT8 *)(p_new_buf + 1) + sizeof(tBTA_PAN_DATA_PARAMS),
+               (UINT8 *)(p_buf + 1) + p_buf->offset, p_buf->len);
+        p_new_buf->len    = p_buf->len;
+        p_new_buf->offset = sizeof(tBTA_PAN_DATA_PARAMS);
+        osi_free(p_buf);
+    } else {
+        p_new_buf = p_buf;
+    }
+    /* copy params into the space before the data */
+    bdcpy(((tBTA_PAN_DATA_PARAMS *)p_new_buf)->src, src);
+    bdcpy(((tBTA_PAN_DATA_PARAMS *)p_new_buf)->dst, dst);
+    ((tBTA_PAN_DATA_PARAMS *)p_new_buf)->protocol = protocol;
+    ((tBTA_PAN_DATA_PARAMS *)p_new_buf)->ext = ext;
+    ((tBTA_PAN_DATA_PARAMS *)p_new_buf)->forward = forward;
+
+    if ((p_scb = bta_pan_scb_by_handle(handle)) == NULL) {
+        osi_free(p_new_buf);
+        return;
+    }
+
+    fixed_queue_enqueue(p_scb->data_queue, p_new_buf);
+    BT_HDR *p_event = (BT_HDR *)osi_malloc(sizeof(BT_HDR));
+    p_event->layer_specific = handle;
+    p_event->event = BTA_PAN_RX_FROM_BNEP_READY_EVT;
+    bta_sys_sendmsg(p_event);
+}
+
+/*******************************************************************************
+**
+** Function         bta_pan_pfilt_ind_cback
+**
+** Description
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_pan_pfilt_ind_cback(UINT16 handle, BOOLEAN indication,tBNEP_RESULT result,
+                                    UINT16 num_filters, UINT8 *p_filters)
+{
+
+    bta_pan_co_pfilt_ind(handle, indication, (tBTA_PAN_STATUS)((result == BNEP_SUCCESS) ? BTA_PAN_SUCCESS : BTA_PAN_FAIL),
+                                    num_filters, p_filters);
+
+
+}
+
+
+/*******************************************************************************
+**
+** Function         bta_pan_mfilt_ind_cback
+**
+** Description
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_pan_mfilt_ind_cback(UINT16 handle, BOOLEAN indication,tBNEP_RESULT result,
+                                    UINT16 num_mfilters, UINT8 *p_mfilters)
+{
+
+    bta_pan_co_mfilt_ind(handle, indication, (tBTA_PAN_STATUS)((result == BNEP_SUCCESS) ? BTA_PAN_SUCCESS : BTA_PAN_FAIL),
+                                    num_mfilters, p_mfilters);
+}
+
+
+
+/*******************************************************************************
+**
+** Function         bta_pan_has_multiple_connections
+**
+** Description      Check whether there are multiple GN/NAP connections to
+**                  different devices
+**
+**
+** Returns          BOOLEAN
+**
+*******************************************************************************/
+static BOOLEAN bta_pan_has_multiple_connections(UINT8 app_id)
+{
+    tBTA_PAN_SCB *p_scb = NULL;
+    BOOLEAN     found = FALSE;
+    BD_ADDR     bd_addr;
+
+    for (UINT8 index = 0; index < BTA_PAN_NUM_CONN; index++)
+    {
+        p_scb = &bta_pan_cb.scb[index];
+        if (p_scb->in_use == TRUE && app_id == p_scb->app_id)
+        {
+            /* save temp bd_addr */
+            bdcpy(bd_addr, p_scb->bd_addr);
+            found = TRUE;
+            break;
+        }
+    }
+
+    /* If cannot find a match then there is no connection at all */
+    if (found == FALSE)
+        return FALSE;
+
+    /* Find whether there is another connection with different device other than PANU.
+        Could be same service or different service */
+    for (UINT8 index = 0; index < BTA_PAN_NUM_CONN; index++)
+    {
+        p_scb = &bta_pan_cb.scb[index];
+        if (p_scb->in_use == TRUE && p_scb->app_id != bta_pan_cb.app_id[0] &&
+                bdcmp(bd_addr, p_scb->bd_addr))
+        {
+            return TRUE;
+        }
+    }
+    return FALSE;
+}
+
+/*******************************************************************************
+**
+** Function         bta_pan_enable
+**
+** Description
+**
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_pan_enable(tBTA_PAN_DATA *p_data)
+{
+    tPAN_REGISTER reg_data;
+    UINT16  initial_discoverability;
+    UINT16  initial_connectability;
+    UINT16  d_window;
+    UINT16  d_interval;
+    UINT16  c_window;
+    UINT16  c_interval;
+
+    bta_pan_cb.p_cback = p_data->api_enable.p_cback;
+
+    reg_data.pan_conn_state_cb  = bta_pan_conn_state_cback;
+    reg_data.pan_bridge_req_cb  = NULL;
+    reg_data.pan_data_buf_ind_cb = bta_pan_data_buf_ind_cback;
+    reg_data.pan_data_ind_cb = NULL;
+    reg_data.pan_pfilt_ind_cb = bta_pan_pfilt_ind_cback;
+    reg_data.pan_mfilt_ind_cb = bta_pan_mfilt_ind_cback;
+    reg_data.pan_tx_data_flow_cb = bta_pan_data_flow_cb;
+
+    /* read connectability and discoverability settings.
+    Pan profile changes the settings. We have to change it back to
+    be consistent with other bta subsystems */
+    initial_connectability = BTM_ReadConnectability(&c_window, &c_interval);
+    initial_discoverability = BTM_ReadDiscoverability(&d_window, &d_interval);
+
+
+    PAN_Register (&reg_data);
+
+
+    /* set it back to original value */
+    BTM_SetDiscoverability(initial_discoverability, d_window, d_interval);
+    BTM_SetConnectability(initial_connectability, c_window, c_interval);
+
+    bta_pan_cb.flow_mask = bta_pan_co_init(&bta_pan_cb.q_level);
+    bta_pan_cb.p_cback(BTA_PAN_ENABLE_EVT, NULL);
+
+}
+
+/*******************************************************************************
+**
+** Function         bta_pan_set_role
+**
+** Description
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_pan_set_role(tBTA_PAN_DATA *p_data)
+{
+    tPAN_RESULT status;
+    tBTA_PAN_SET_ROLE set_role;
+    UINT8  sec[3];
+
+
+    bta_pan_cb.app_id[0] = p_data->api_set_role.user_app_id;
+    bta_pan_cb.app_id[1] = p_data->api_set_role.gn_app_id;
+    bta_pan_cb.app_id[2] = p_data->api_set_role.nap_app_id;
+
+    sec[0] = p_data->api_set_role.user_sec_mask;
+    sec[1] = p_data->api_set_role.gn_sec_mask;
+    sec[2] = p_data->api_set_role.nap_sec_mask;
+
+    /* set security correctly in api and here */
+    status = PAN_SetRole(p_data->api_set_role.role, sec,
+                                     p_data->api_set_role.user_name,
+                                     p_data->api_set_role.gn_name,
+                                     p_data->api_set_role.nap_name);
+
+    set_role.role = p_data->api_set_role.role;
+    if(status == PAN_SUCCESS)
+    {
+        if(p_data->api_set_role.role & PAN_ROLE_NAP_SERVER )
+            bta_sys_add_uuid(UUID_SERVCLASS_NAP);
+        else
+            bta_sys_remove_uuid(UUID_SERVCLASS_NAP);
+
+        if(p_data->api_set_role.role & PAN_ROLE_GN_SERVER )
+            bta_sys_add_uuid(UUID_SERVCLASS_GN);
+        else
+            bta_sys_remove_uuid(UUID_SERVCLASS_GN);
+
+        if(p_data->api_set_role.role & PAN_ROLE_CLIENT )
+            bta_sys_add_uuid(UUID_SERVCLASS_PANU);
+        else
+            bta_sys_remove_uuid(UUID_SERVCLASS_PANU);
+
+        set_role.status = BTA_PAN_SUCCESS;
+    }
+    /* if status is not success clear everything */
+    else
+    {
+        PAN_SetRole(0, 0, NULL, NULL, NULL);
+        bta_sys_remove_uuid(UUID_SERVCLASS_NAP);
+        bta_sys_remove_uuid(UUID_SERVCLASS_GN);
+        bta_sys_remove_uuid(UUID_SERVCLASS_PANU);
+        set_role.status = BTA_PAN_FAIL;
+    }
+    bta_pan_cb.p_cback(BTA_PAN_SET_ROLE_EVT, (tBTA_PAN *)&set_role);
+}
+
+
+
+/*******************************************************************************
+**
+** Function         bta_pan_disable
+**
+** Description
+**
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_pan_disable(void)
+{
+
+    BT_HDR *p_buf;
+    tBTA_PAN_SCB *p_scb = &bta_pan_cb.scb[0];
+    UINT8 i;
+
+
+    /* close all connections */
+    PAN_SetRole (0, NULL, NULL, NULL, NULL);
+
+#if (BTA_EIR_CANNED_UUID_LIST != TRUE)
+    bta_sys_remove_uuid(UUID_SERVCLASS_NAP);
+    bta_sys_remove_uuid(UUID_SERVCLASS_GN);
+    bta_sys_remove_uuid(UUID_SERVCLASS_PANU);
+#endif // BTA_EIR_CANNED_UUID_LIST
+    /* free all queued up data buffers */
+    for (i = 0; i < BTA_PAN_NUM_CONN; i++, p_scb++)
+    {
+        if (p_scb->in_use)
+        {
+            while ((p_buf = (BT_HDR *)fixed_queue_try_dequeue(p_scb->data_queue)) != NULL)
+                osi_free(p_buf);
+
+            bta_pan_co_close(p_scb->handle, p_scb->app_id);
+
+        }
+    }
+
+
+
+    PAN_Deregister();
+
+}
+
+/*******************************************************************************
+**
+** Function         bta_pan_open
+**
+** Description
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_pan_open(tBTA_PAN_SCB *p_scb, tBTA_PAN_DATA *p_data)
+{
+    tPAN_RESULT status;
+    tBTA_PAN_OPEN data;
+    tBTA_PAN_OPENING    opening;
+
+
+    status = PAN_Connect (p_data->api_open.bd_addr, p_data->api_open.local_role, p_data->api_open.peer_role,
+                        &p_scb->handle);
+    APPL_TRACE_DEBUG("%s pan connect status: %d", __func__, status);
+
+    if(status == PAN_SUCCESS)
+    {
+
+        bdcpy(p_scb->bd_addr, p_data->api_open.bd_addr);
+        p_scb->local_role = p_data->api_open.local_role;
+        p_scb->peer_role = p_data->api_open.peer_role;
+        bdcpy(opening.bd_addr, p_data->api_open.bd_addr);
+        opening.handle = p_scb->handle;
+        bta_pan_cb.p_cback(BTA_PAN_OPENING_EVT, (tBTA_PAN *)&opening);
+
+
+    }
+    else
+    {
+        bta_pan_scb_dealloc(p_scb);
+        bdcpy(data.bd_addr, p_data->api_open.bd_addr);
+        data.status = BTA_PAN_FAIL;
+        data.local_role = p_data->api_open.local_role;
+        data.peer_role = p_data->api_open.peer_role;
+        bta_pan_cb.p_cback(BTA_PAN_OPEN_EVT, (tBTA_PAN *)&data);
+    }
+
+}
+
+
+/*******************************************************************************
+**
+** Function         bta_pan_close
+**
+** Description
+**
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_pan_api_close (tBTA_PAN_SCB *p_scb, tBTA_PAN_DATA *p_data)
+{
+    tBTA_PAN_CONN *p_buf = (tBTA_PAN_CONN *)osi_malloc(sizeof(tBTA_PAN_CONN));
+
+    UNUSED(p_data);
+
+    PAN_Disconnect(p_scb->handle);
+
+    /*
+     * Send an event to BTA so that application will get the connection
+     * close event.
+     */
+    p_buf->hdr.event = BTA_PAN_CONN_CLOSE_EVT;
+    p_buf->hdr.layer_specific = p_scb->handle;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         bta_pan_conn_open
+**
+** Description      process connection open event
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_pan_conn_open(tBTA_PAN_SCB *p_scb, tBTA_PAN_DATA *p_data)
+{
+
+    tBTA_PAN_OPEN data;
+
+    APPL_TRACE_DEBUG("%s pan connection result: %d", __func__, p_data->conn.result);
+
+    bdcpy(data.bd_addr, p_scb->bd_addr);
+    data.handle = p_scb->handle;
+    data.local_role = p_scb->local_role;
+    data.peer_role = p_scb->peer_role;
+
+    if(p_data->conn.result == PAN_SUCCESS)
+    {
+        data.status = BTA_PAN_SUCCESS;
+        p_scb->pan_flow_enable = TRUE;
+        p_scb->app_flow_enable = TRUE;
+        bta_sys_conn_open(BTA_ID_PAN ,p_scb->app_id, p_scb->bd_addr);
+    }
+    else
+    {
+        bta_pan_scb_dealloc(p_scb);
+        data.status = BTA_PAN_FAIL;
+    }
+
+    p_scb->pan_flow_enable = TRUE;
+    p_scb->app_flow_enable = TRUE;
+
+    /* If app_id is NAP/GN, check whether there are multiple connections.
+       If there are, provide a special app_id to dm to enforce master role only. */
+    if ((p_scb->app_id == bta_pan_cb.app_id[1] || p_scb->app_id == bta_pan_cb.app_id[2]) &&
+            bta_pan_has_multiple_connections(p_scb->app_id))
+    {
+        p_scb->app_id = BTA_APP_ID_PAN_MULTI;
+    }
+
+    bta_sys_conn_open(BTA_ID_PAN, p_scb->app_id, p_scb->bd_addr);
+    bta_pan_cb.p_cback(BTA_PAN_OPEN_EVT, (tBTA_PAN *)&data);
+
+
+}
+
+/*******************************************************************************
+**
+** Function         bta_pan_conn_close
+**
+** Description      process connection close event
+**
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_pan_conn_close(tBTA_PAN_SCB *p_scb, tBTA_PAN_DATA *p_data)
+{
+
+    tBTA_PAN_CLOSE data;
+    BT_HDR *p_buf;
+
+    data.handle = p_data->hdr.layer_specific;
+
+    bta_sys_conn_close( BTA_ID_PAN ,p_scb->app_id, p_scb->bd_addr);
+
+    /* free all queued up data buffers */
+    while ((p_buf = (BT_HDR *)fixed_queue_try_dequeue(p_scb->data_queue)) != NULL)
+        osi_free(p_buf);
+
+    bta_pan_scb_dealloc(p_scb);
+
+    bta_pan_cb.p_cback(BTA_PAN_CLOSE_EVT, (tBTA_PAN *)&data);
+
+}
+
+
+
+
+/*******************************************************************************
+**
+** Function         bta_pan_rx_path
+**
+** Description      Handle data on the RX path (data sent from the phone to
+**                  BTA).
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_pan_rx_path(tBTA_PAN_SCB *p_scb, tBTA_PAN_DATA *p_data)
+{
+    UNUSED(p_data);
+
+    /* if data path configured for rx pull */
+    if ((bta_pan_cb.flow_mask & BTA_PAN_RX_MASK) == BTA_PAN_RX_PULL)
+    {
+        /* if we can accept data */
+        if (p_scb->pan_flow_enable == TRUE)
+        {
+            /* call application callout function for rx path */
+            bta_pan_co_rx_path(p_scb->handle, p_scb->app_id);
+        }
+    }
+    /* else data path configured for rx push */
+    else
+    {
+
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_pan_tx_path
+**
+** Description      Handle the TX data path (data sent from BTA to the phone).
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_pan_tx_path(tBTA_PAN_SCB *p_scb, tBTA_PAN_DATA *p_data)
+{
+    UNUSED(p_data);
+
+    /* if data path configured for tx pull */
+    if ((bta_pan_cb.flow_mask & BTA_PAN_TX_MASK) == BTA_PAN_TX_PULL)
+    {
+        bta_pan_pm_conn_busy(p_scb);
+        /* call application callout function for tx path */
+        bta_pan_co_tx_path(p_scb->handle, p_scb->app_id);
+
+        /* free data that exceeds queue level */
+        while (fixed_queue_length(p_scb->data_queue) > bta_pan_cb.q_level)
+            osi_free(fixed_queue_try_dequeue(p_scb->data_queue));
+        bta_pan_pm_conn_idle(p_scb);
+    }
+    /* if configured for zero copy push */
+    else if ((bta_pan_cb.flow_mask & BTA_PAN_TX_MASK) == BTA_PAN_TX_PUSH_BUF)
+    {
+        /* if app can accept data */
+        if (p_scb->app_flow_enable == TRUE)
+        {
+            BT_HDR *p_buf;
+
+            /* read data from the queue */
+            if ((p_buf = (BT_HDR *)fixed_queue_try_dequeue(p_scb->data_queue)) != NULL)
+            {
+                /* send data to application */
+                bta_pan_co_tx_writebuf(p_scb->handle,
+                                        p_scb->app_id,
+                                        ((tBTA_PAN_DATA_PARAMS *)p_buf)->src,
+                                        ((tBTA_PAN_DATA_PARAMS *)p_buf)->dst,
+                                        ((tBTA_PAN_DATA_PARAMS *)p_buf)->protocol,
+                                        p_buf,
+                                        ((tBTA_PAN_DATA_PARAMS *)p_buf)->ext,
+                                        ((tBTA_PAN_DATA_PARAMS *)p_buf)->forward);
+
+            }
+            /* free data that exceeds queue level  */
+            while (fixed_queue_length(p_scb->data_queue) > bta_pan_cb.q_level)
+                osi_free(fixed_queue_try_dequeue(p_scb->data_queue));
+
+            /* if there is more data to be passed to
+            upper layer */
+            if (!fixed_queue_is_empty(p_scb->data_queue))
+            {
+                p_buf = (BT_HDR *)osi_malloc(sizeof(BT_HDR));
+                p_buf->layer_specific = p_scb->handle;
+                p_buf->event = BTA_PAN_RX_FROM_BNEP_READY_EVT;
+                bta_sys_sendmsg(p_buf);
+            }
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_pan_tx_flow
+**
+** Description      Set the application flow control state.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_pan_tx_flow(tBTA_PAN_SCB *p_scb, tBTA_PAN_DATA *p_data)
+{
+    p_scb->app_flow_enable = p_data->ci_tx_flow.enable;
+}
+
+/*******************************************************************************
+**
+** Function         bta_pan_write_buf
+**
+** Description      Handle a bta_pan_ci_rx_writebuf() and send data to PAN.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_pan_write_buf(tBTA_PAN_SCB *p_scb, tBTA_PAN_DATA *p_data)
+{
+    if ((bta_pan_cb.flow_mask & BTA_PAN_RX_MASK) == BTA_PAN_RX_PUSH_BUF)
+    {
+        bta_pan_pm_conn_busy(p_scb);
+
+        PAN_WriteBuf (p_scb->handle,
+                      ((tBTA_PAN_DATA_PARAMS *)p_data)->dst,
+                      ((tBTA_PAN_DATA_PARAMS *)p_data)->src,
+                      ((tBTA_PAN_DATA_PARAMS *)p_data)->protocol,
+                      (BT_HDR *)p_data,
+                      ((tBTA_PAN_DATA_PARAMS *)p_data)->ext);
+        bta_pan_pm_conn_idle(p_scb);
+
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_pan_free_buf
+**
+** Description      Frees the data buffer during closing state
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_pan_free_buf(tBTA_PAN_SCB *p_scb, tBTA_PAN_DATA *p_data)
+{
+    UNUSED(p_scb);
+    osi_free(p_data);
+}
+
+#endif /* PAN_INCLUDED */
diff --git a/rtkbt/code/bt/bta/pan/bta_pan_api.c b/rtkbt/code/bt/bta/pan/bta_pan_api.c
new file mode 100755
index 0000000..1c93a95
--- /dev/null
+++ b/rtkbt/code/bt/bta/pan/bta_pan_api.c
@@ -0,0 +1,222 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2004-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the implementation of the API for PAN subsystem of BTA,
+ *  Broadcom's Bluetooth application layer for mobile phones.
+ *
+ ******************************************************************************/
+
+#include "bt_target.h"
+
+#include "bta_api.h"
+#include "bta_sys.h"
+#include "pan_api.h"
+#include "bt_common.h"
+#include "bta_pan_api.h"
+#include "bta_pan_int.h"
+#include <string.h>
+#include "bt_utils.h"
+
+#if defined(BTA_PAN_INCLUDED) && (BTA_PAN_INCLUDED == TRUE)
+
+static const tBTA_SYS_REG bta_pan_reg =
+{
+    bta_pan_hdl_event,
+    BTA_PanDisable
+};
+
+/*******************************************************************************
+**
+** Function         BTA_PanEnable
+**
+** Description      Enable PAN service.  This function must be
+**                  called before any other functions in the PAN API are called.
+**                  When the enable operation is complete the callback function
+**                  will be called with a BTA_PAN_ENABLE_EVT.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_PanEnable(tBTA_PAN_CBACK p_cback)
+{
+    tBTA_PAN_API_ENABLE *p_buf =
+        (tBTA_PAN_API_ENABLE *)osi_malloc(sizeof(tBTA_PAN_API_ENABLE));
+
+    /* register with BTA system manager */
+    bta_sys_register(BTA_ID_PAN, &bta_pan_reg);
+
+    p_buf->hdr.event = BTA_PAN_API_ENABLE_EVT;
+    p_buf->p_cback = p_cback;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+
+
+/*******************************************************************************
+**
+** Function         BTA_PanDisable
+**
+** Description      Disables PAN service.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_PanDisable(void)
+{
+    BT_HDR *p_buf = (BT_HDR *)osi_malloc(sizeof(BT_HDR));
+
+    bta_sys_deregister(BTA_ID_PAN);
+    p_buf->event = BTA_PAN_API_DISABLE_EVT;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_PanSetRole
+**
+** Description      Sets PAN roles. When the enable operation is complete
+**                  the callback function will be called with a BTA_PAN_SET_ROLE_EVT.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_PanSetRole(tBTA_PAN_ROLE role, tBTA_PAN_ROLE_INFO *p_user_info, tBTA_PAN_ROLE_INFO *p_gn_info,
+                                        tBTA_PAN_ROLE_INFO *p_nap_info)
+{
+    tBTA_PAN_API_SET_ROLE  *p_buf =
+        (tBTA_PAN_API_SET_ROLE *)osi_malloc(sizeof(tBTA_PAN_API_SET_ROLE));
+
+    p_buf->hdr.event = BTA_PAN_API_SET_ROLE_EVT;
+    p_buf->role = role;
+
+    if (p_user_info && (role & BTA_PAN_ROLE_PANU)) {
+        if (p_user_info->p_srv_name)
+            strlcpy(p_buf->user_name, p_user_info->p_srv_name, BTA_SERVICE_NAME_LEN);
+        else
+            p_buf->user_name[0] = 0;
+
+        p_buf->user_app_id = p_user_info->app_id;
+        p_buf->user_sec_mask = p_user_info->sec_mask;
+    }
+
+    if (p_gn_info && (role & BTA_PAN_ROLE_GN)) {
+        if (p_gn_info->p_srv_name)
+            strlcpy(p_buf->gn_name, p_gn_info->p_srv_name, BTA_SERVICE_NAME_LEN);
+        else
+            p_buf->gn_name[0] = 0;
+
+        p_buf->gn_app_id = p_gn_info->app_id;
+        p_buf->gn_sec_mask = p_gn_info->sec_mask;
+    }
+
+    if (p_nap_info && (role & BTA_PAN_ROLE_NAP)) {
+      if (p_nap_info->p_srv_name)
+          strlcpy(p_buf->nap_name, p_nap_info->p_srv_name, BTA_SERVICE_NAME_LEN);
+      else
+          p_buf->nap_name[0] = 0;
+
+      p_buf->nap_app_id = p_nap_info->app_id;
+      p_buf->nap_sec_mask = p_nap_info->sec_mask;
+
+    }
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_PanOpen
+**
+** Description      Opens a connection to a peer device.
+**                  When connection is open callback function is called
+**                  with a BTA_PAN_OPEN_EVT.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_PanOpen(BD_ADDR bd_addr, tBTA_PAN_ROLE    local_role, tBTA_PAN_ROLE    peer_role)
+{
+    tBTA_PAN_API_OPEN *p_buf =
+        (tBTA_PAN_API_OPEN *)osi_malloc(sizeof(tBTA_PAN_API_OPEN));
+
+    p_buf->hdr.event = BTA_PAN_API_OPEN_EVT;
+    p_buf->local_role = local_role;
+    p_buf->peer_role = peer_role;
+    bdcpy(p_buf->bd_addr, bd_addr);
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         BTA_PanClose
+**
+** Description      Close a PAN  connection to a peer device.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_PanClose(UINT16 handle)
+{
+    BT_HDR *p_buf = (BT_HDR *)osi_malloc(sizeof(BT_HDR));
+
+    p_buf->event = BTA_PAN_API_CLOSE_EVT;
+    p_buf->layer_specific = handle;
+
+    bta_sys_sendmsg(p_buf);
+}
+#else
+
+void BTA_PanEnable(tBTA_PAN_CBACK p_cback)
+{
+    UNUSED(p_cback);
+}
+
+void BTA_PanDisable(void)
+{
+}
+
+void BTA_PanSetRole(tBTA_PAN_ROLE role, tBTA_PAN_ROLE_INFO *p_user_info, tBTA_PAN_ROLE_INFO *p_gn_info,
+                    tBTA_PAN_ROLE_INFO *p_nap_info)
+{
+    UNUSED(role);
+    UNUSED(p_user_info);
+    UNUSED(p_gn_info);
+    UNUSED(p_nap_info);
+}
+
+void BTA_PanOpen(BD_ADDR bd_addr, tBTA_PAN_ROLE local_role, tBTA_PAN_ROLE peer_role)
+{
+    UNUSED(bd_addr);
+    UNUSED(local_role);
+    UNUSED(peer_role);
+}
+
+void BTA_PanClose(UINT16 handle)
+{
+    UNUSED(handle);
+}
+
+#endif /* BTA_PAN_INCLUDED */
diff --git a/rtkbt/code/bt/bta/pan/bta_pan_ci.c b/rtkbt/code/bt/bta/pan/bta_pan_ci.c
new file mode 100755
index 0000000..ec77e60
--- /dev/null
+++ b/rtkbt/code/bt/bta/pan/bta_pan_ci.c
@@ -0,0 +1,303 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2004-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the implementation file for data gateway call-in functions.
+ *
+ ******************************************************************************/
+
+#include "bt_target.h"
+
+#include <string.h>
+
+#include "bt_common.h"
+#include "pan_api.h"
+#include "bta_api.h"
+#include "bta_pan_api.h"
+#include "bta_pan_ci.h"
+#include "bta_pan_int.h"
+#include "bt_utils.h"
+
+#if defined(BTA_PAN_INCLUDED) && (BTA_PAN_INCLUDED == TRUE)
+
+/*******************************************************************************
+**
+** Function         bta_pan_ci_tx_ready
+**
+** Description      This function sends an event to PAN indicating the phone is
+**                  ready for more data and PAN should call bta_pan_co_tx_path().
+**                  This function is used when the TX data path is configured
+**                  to use a pull interface.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_pan_ci_tx_ready(UINT16 handle)
+{
+    BT_HDR *p_buf = (BT_HDR *)osi_malloc(sizeof(BT_HDR));
+
+    p_buf->layer_specific = handle;
+    p_buf->event = BTA_PAN_CI_TX_READY_EVT;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         bta_pan_ci_rx_ready
+**
+** Description      This function sends an event to PAN indicating the phone
+**                  has data available to send to PAN and PAN should call
+**                  bta_pan_co_rx_path().  This function is used when the RX
+**                  data path is configured to use a pull interface.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_pan_ci_rx_ready(UINT16 handle)
+{
+    BT_HDR *p_buf = (BT_HDR *)osi_malloc(sizeof(BT_HDR));
+
+    p_buf->layer_specific = handle;
+    p_buf->event = BTA_PAN_CI_RX_READY_EVT;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         bta_pan_ci_tx_flow
+**
+** Description      This function is called to enable or disable data flow on
+**                  the TX path.  The phone should call this function to
+**                  disable data flow when it is congested and cannot handle
+**                  any more data sent by bta_pan_co_tx_write() or
+**                  bta_pan_co_tx_writebuf().  This function is used when the
+**                  TX data path is configured to use a push interface.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_pan_ci_tx_flow(UINT16 handle, BOOLEAN enable)
+{
+    tBTA_PAN_CI_TX_FLOW  *p_buf =
+        (tBTA_PAN_CI_TX_FLOW *)osi_malloc(sizeof(tBTA_PAN_CI_TX_FLOW));
+
+    p_buf->hdr.layer_specific = handle;
+    p_buf->hdr.event = BTA_PAN_CI_TX_FLOW_EVT;
+    p_buf->enable = enable;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         bta_pan_ci_rx_write
+**
+** Description      This function is called to send data to PAN when the RX path
+**                  is configured to use a push interface.  The function copies
+**                  data to an event buffer and sends it to PAN.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_pan_ci_rx_write(UINT16 handle, BD_ADDR dst, BD_ADDR src, UINT16 protocol,
+                            UINT8 *p_data, UINT16 len, BOOLEAN ext)
+{
+    BT_HDR *p_buf = (BT_HDR *)osi_malloc(PAN_BUF_SIZE);
+
+    p_buf->offset = PAN_MINIMUM_OFFSET;
+
+    /* copy all other params before the data */
+    bdcpy(((tBTA_PAN_DATA_PARAMS *)p_buf)->src, src);
+    bdcpy(((tBTA_PAN_DATA_PARAMS *)p_buf)->dst, dst);
+    ((tBTA_PAN_DATA_PARAMS *)p_buf)->protocol = protocol;
+    ((tBTA_PAN_DATA_PARAMS *)p_buf)->ext = ext;
+    p_buf->len=len;
+
+    /* copy data */
+    memcpy((UINT8 *)(p_buf + 1) + p_buf->offset, p_data, len);
+
+    p_buf->layer_specific = handle;
+    p_buf->event = BTA_PAN_CI_RX_WRITEBUF_EVT;
+
+    bta_sys_sendmsg(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         bta_pan_ci_rx_writebuf
+**
+** Description      This function is called to send data to the phone when
+**                  the RX path is configured to use a push interface with
+**                  zero copy.  The function sends an event to PAN containing
+**                  the data buffer. The buffer will be freed by BTA; the
+**                  phone must not free the buffer.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_pan_ci_rx_writebuf(UINT16 handle, BD_ADDR dst, BD_ADDR src, UINT16 protocol,
+                            BT_HDR *p_buf, BOOLEAN ext)
+{
+
+    /* copy all other params before the data */
+    bdcpy(((tBTA_PAN_DATA_PARAMS *)p_buf)->src, src);
+    bdcpy(((tBTA_PAN_DATA_PARAMS *)p_buf)->dst, dst);
+    ((tBTA_PAN_DATA_PARAMS *)p_buf)->protocol = protocol;
+    ((tBTA_PAN_DATA_PARAMS *)p_buf)->ext = ext;
+
+    p_buf->layer_specific = handle;
+    p_buf->event = BTA_PAN_CI_RX_WRITEBUF_EVT;
+    bta_sys_sendmsg(p_buf);
+}
+
+
+
+
+/*******************************************************************************
+**
+** Function         bta_pan_ci_readbuf
+**
+** Description
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+BT_HDR * bta_pan_ci_readbuf(UINT16 handle, BD_ADDR src, BD_ADDR dst, UINT16* p_protocol,
+                                 BOOLEAN* p_ext, BOOLEAN* p_forward)
+{
+    tBTA_PAN_SCB * p_scb;
+    BT_HDR * p_buf;
+
+    p_scb = bta_pan_scb_by_handle(handle);
+
+    p_buf = (BT_HDR *)fixed_queue_try_dequeue(p_scb->data_queue);
+    if (p_buf != NULL)
+    {
+        bdcpy(src,((tBTA_PAN_DATA_PARAMS *)p_buf)->src);
+        bdcpy(dst,((tBTA_PAN_DATA_PARAMS *)p_buf)->dst);
+        *p_protocol = ((tBTA_PAN_DATA_PARAMS *)p_buf)->protocol;
+        *p_ext = ((tBTA_PAN_DATA_PARAMS *)p_buf)->ext;
+        *p_forward = ((tBTA_PAN_DATA_PARAMS *)p_buf)->forward;
+    }
+
+    return p_buf;
+}
+
+
+/*******************************************************************************
+**
+** Function         bta_pan_ci_set_mfilters
+**
+** Description      This function is called to set multicast filters
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_pan_ci_set_mfilters(UINT16 handle, UINT16 num_mcast_filters, UINT8 *p_start_array,
+                                                    UINT8 *p_end_array)
+{
+
+    PAN_SetMulticastFilters(handle, num_mcast_filters, p_start_array, p_end_array);
+
+}
+
+
+/*******************************************************************************
+**
+** Function         bta_pan_ci_set_mfilters
+**
+** Description      This function is called to set protocol filters
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_pan_ci_set_pfilters(UINT16 handle, UINT16 num_filters, UINT16 *p_start_array, UINT16 *p_end_array)
+{
+
+    PAN_SetProtocolFilters(handle, num_filters, p_start_array, p_end_array );
+
+}
+#else
+
+void bta_pan_ci_tx_ready(UINT16 handle)
+{
+    UNUSED(handle);
+}
+
+void bta_pan_ci_rx_ready(UINT16 handle)
+{
+    UNUSED(handle);
+}
+
+void bta_pan_ci_tx_flow(UINT16 handle, BOOLEAN enable)
+{
+    UNUSED(handle);
+    UNUSED(enable);
+}
+
+void bta_pan_ci_rx_writebuf(UINT16 handle, BD_ADDR src, BD_ADDR dst, UINT16 protocol, BT_HDR *p_buf, BOOLEAN ext)
+{
+    UNUSED(handle);
+    UNUSED(src);
+    UNUSED(dst);
+    UNUSED(protocol);
+    UNUSED(p_buf);
+    UNUSED(ext);
+}
+
+BT_HDR * bta_pan_ci_readbuf(UINT16 handle, BD_ADDR src, BD_ADDR dst, UINT16 *p_protocol,
+                            BOOLEAN* p_ext, BOOLEAN* p_forward)
+{
+    UNUSED(handle);
+    UNUSED(src);
+    UNUSED(dst);
+    UNUSED(p_protocol);
+    UNUSED(p_ext);
+    UNUSED(p_forward);
+    return NULL;
+}
+
+void bta_pan_ci_set_pfilters(UINT16 handle, UINT16 num_filters, UINT16 *p_start_array, UINT16 *p_end_array)
+{
+    UNUSED(handle);
+    UNUSED(num_filters);
+    UNUSED(p_start_array);
+    UNUSED(p_end_array);
+}
+
+void bta_pan_ci_set_mfilters(UINT16 handle, UINT16 num_mcast_filters, UINT8 *p_start_array,
+                             UINT8 *p_end_array)
+{
+    UNUSED(handle);
+    UNUSED(num_mcast_filters);
+    UNUSED(p_start_array);
+    UNUSED(p_end_array);
+}
+
+#endif /* BTA_PAN_API */
diff --git a/rtkbt/code/bt/bta/pan/bta_pan_int.h b/rtkbt/code/bt/bta/pan/bta_pan_int.h
new file mode 100755
index 0000000..cd36ef2
--- /dev/null
+++ b/rtkbt/code/bt/bta/pan/bta_pan_int.h
@@ -0,0 +1,221 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2004-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the private interface file for the BTA data gateway.
+ *
+ ******************************************************************************/
+#ifndef BTA_PAN_INT_H
+#define BTA_PAN_INT_H
+
+#include "osi/include/fixed_queue.h"
+#include "bta_sys.h"
+#include "bta_pan_api.h"
+
+/*****************************************************************************
+**  Constants
+*****************************************************************************/
+
+
+
+
+/* PAN events */
+enum
+{
+    /* these events are handled by the state machine */
+    BTA_PAN_API_CLOSE_EVT = BTA_SYS_EVT_START(BTA_ID_PAN),
+    BTA_PAN_CI_TX_READY_EVT,
+    BTA_PAN_CI_RX_READY_EVT,
+    BTA_PAN_CI_TX_FLOW_EVT,
+    BTA_PAN_CI_RX_WRITE_EVT,
+    BTA_PAN_CI_RX_WRITEBUF_EVT,
+    BTA_PAN_CONN_OPEN_EVT,
+    BTA_PAN_CONN_CLOSE_EVT,
+    BTA_PAN_BNEP_FLOW_ENABLE_EVT,
+    BTA_PAN_RX_FROM_BNEP_READY_EVT,
+
+    /* these events are handled outside of the state machine */
+    BTA_PAN_API_ENABLE_EVT,
+    BTA_PAN_API_DISABLE_EVT,
+    BTA_PAN_API_SET_ROLE_EVT,
+    BTA_PAN_API_OPEN_EVT
+};
+
+/* state machine states */
+enum
+{
+    BTA_PAN_IDLE_ST,
+    BTA_PAN_OPEN_ST,
+    BTA_PAN_CLOSING_ST
+};
+
+
+
+
+/*****************************************************************************
+**  Data types
+*****************************************************************************/
+
+/* data type for BTA_PAN_API_ENABLE_EVT */
+typedef struct
+{
+    BT_HDR              hdr;                        /* Event header */
+    tBTA_PAN_CBACK     *p_cback;                    /* PAN callback function */
+} tBTA_PAN_API_ENABLE;
+
+/* data type for BTA_PAN_API_REG_ROLE_EVT */
+typedef struct
+{
+    BT_HDR              hdr;                             /* Event header */
+    char                user_name[BTA_SERVICE_NAME_LEN+1];   /* Service name */
+    char                gn_name[BTA_SERVICE_NAME_LEN+1];     /* Service name */
+    char                nap_name[BTA_SERVICE_NAME_LEN+1];    /* Service name */
+    tBTA_PAN_ROLE       role;
+    UINT8               user_app_id;
+    UINT8               gn_app_id;
+    UINT8               nap_app_id;
+    tBTA_SEC            user_sec_mask;                   /* Security mask */
+    tBTA_SEC            gn_sec_mask;                     /* Security mask */
+    tBTA_SEC            nap_sec_mask;                    /* Security mask */
+
+
+} tBTA_PAN_API_SET_ROLE;
+
+/* data type for BTA_PAN_API_OPEN_EVT */
+typedef struct
+{
+    BT_HDR              hdr;                        /* Event header */
+    tBTA_PAN_ROLE        local_role;                 /* local role */
+    tBTA_PAN_ROLE        peer_role;                  /* peer role */
+    BD_ADDR             bd_addr;                    /* peer bdaddr */
+} tBTA_PAN_API_OPEN;
+
+/* data type for BTA_PAN_CI_TX_FLOW_EVT */
+typedef struct
+{
+    BT_HDR          hdr;                    /* Event header */
+    BOOLEAN         enable;                 /* Flow control setting */
+} tBTA_PAN_CI_TX_FLOW;
+
+/* data type for BTA_PAN_CONN_OPEN_EVT */
+typedef struct
+{
+    BT_HDR          hdr;        /* Event header */
+    tPAN_RESULT     result;
+
+} tBTA_PAN_CONN;
+
+
+
+
+/* union of all data types */
+typedef union
+{
+    BT_HDR                   hdr;
+    tBTA_PAN_API_ENABLE      api_enable;
+    tBTA_PAN_API_SET_ROLE    api_set_role;
+    tBTA_PAN_API_OPEN        api_open;
+    tBTA_PAN_CI_TX_FLOW      ci_tx_flow;
+    tBTA_PAN_CONN            conn;
+} tBTA_PAN_DATA;
+
+/* state machine control block */
+typedef struct
+{
+    BD_ADDR                 bd_addr;        /* peer bdaddr */
+    fixed_queue_t           *data_queue;    /* Queue of buffers waiting to be passed to application */
+    UINT16                  handle;         /* BTA PAN/BNEP handle */
+    BOOLEAN                 in_use;         /* scb in use */
+    tBTA_SEC                sec_mask;       /* Security mask */
+    BOOLEAN                 pan_flow_enable;/* BNEP flow control state */
+    BOOLEAN                 app_flow_enable;/* Application flow control state */
+    UINT8                   state;          /* State machine state */
+    tBTA_PAN_ROLE            local_role;     /* local role */
+    tBTA_PAN_ROLE            peer_role;      /* peer role */
+    UINT8                    app_id;         /* application id for the connection */
+
+} tBTA_PAN_SCB;
+
+
+
+/* main control block */
+typedef struct
+{
+    tBTA_PAN_SCB    scb[BTA_PAN_NUM_CONN];          /* state machine control blocks */
+    tBTA_PAN_CBACK *p_cback;                        /* PAN callback function */
+    UINT8            app_id[3];                      /* application id for PAN roles */
+    UINT8           flow_mask;                      /* Data flow mask */
+    UINT8           q_level;                        /* queue level set by application for TX data */
+
+} tBTA_PAN_CB;
+
+
+/* pan data param */
+typedef struct
+{
+    BT_HDR  hdr;
+    BD_ADDR src;
+    BD_ADDR dst;
+    UINT16  protocol;
+    BOOLEAN ext;
+    BOOLEAN forward;
+
+} tBTA_PAN_DATA_PARAMS;
+
+
+/*****************************************************************************
+**  Global data
+*****************************************************************************/
+
+/* PAN control block */
+
+#if BTA_DYNAMIC_MEMORY == FALSE
+extern tBTA_PAN_CB  bta_pan_cb;
+#else
+extern tBTA_PAN_CB *bta_pan_cb_ptr;
+#define bta_pan_cb (*bta_pan_cb_ptr)
+#endif
+
+/*****************************************************************************
+**  Function prototypes
+*****************************************************************************/
+extern tBTA_PAN_SCB *bta_pan_scb_alloc(void);
+extern void bta_pan_scb_dealloc(tBTA_PAN_SCB *p_scb);
+extern UINT8 bta_pan_scb_to_idx(tBTA_PAN_SCB *p_scb);
+extern tBTA_PAN_SCB *bta_pan_scb_by_handle(UINT16 handle);
+extern BOOLEAN bta_pan_hdl_event(BT_HDR *p_msg);
+
+/* action functions */
+extern void bta_pan_enable(tBTA_PAN_DATA *p_data);
+extern void bta_pan_disable(void);
+extern void bta_pan_set_role(tBTA_PAN_DATA *p_data);
+extern void bta_pan_open(tBTA_PAN_SCB *p_scb, tBTA_PAN_DATA *p_data);
+extern void bta_pan_api_close(tBTA_PAN_SCB *p_scb, tBTA_PAN_DATA *p_data);
+extern void bta_pan_set_shutdown(tBTA_PAN_SCB *p_scb, tBTA_PAN_DATA *p_data);
+extern void bta_pan_rx_path(tBTA_PAN_SCB *p_scb, tBTA_PAN_DATA *p_data);
+extern void bta_pan_tx_path(tBTA_PAN_SCB *p_scb, tBTA_PAN_DATA *p_data);
+extern void bta_pan_tx_flow(tBTA_PAN_SCB *p_scb, tBTA_PAN_DATA *p_data);
+extern void bta_pan_conn_open(tBTA_PAN_SCB *p_scb, tBTA_PAN_DATA *p_data);
+extern void bta_pan_conn_close(tBTA_PAN_SCB *p_scb, tBTA_PAN_DATA *p_data);
+extern void bta_pan_writebuf(tBTA_PAN_SCB *p_scb, tBTA_PAN_DATA *p_data);
+extern void bta_pan_write_buf(tBTA_PAN_SCB *p_scb, tBTA_PAN_DATA *p_data);
+extern void bta_pan_free_buf(tBTA_PAN_SCB *p_scb, tBTA_PAN_DATA *p_data);
+
+
+#endif /* BTA_PAN_INT_H */
diff --git a/rtkbt/code/bt/bta/pan/bta_pan_main.c b/rtkbt/code/bt/bta/pan/bta_pan_main.c
new file mode 100755
index 0000000..a766f2e
--- /dev/null
+++ b/rtkbt/code/bt/bta/pan/bta_pan_main.c
@@ -0,0 +1,416 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2004-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains the PAN main functions and state machine.
+ *
+ ******************************************************************************/
+
+#include "bt_target.h"
+
+#if defined(BTA_PAN_INCLUDED) && (BTA_PAN_INCLUDED == TRUE)
+
+#include <string.h>
+#include "bta_api.h"
+#include "bta_sys.h"
+#include "bt_common.h"
+#include "pan_api.h"
+#include "bta_pan_api.h"
+#include "bta_pan_int.h"
+#include "utl.h"
+
+/*****************************************************************************
+** Constants and types
+*****************************************************************************/
+
+
+
+/* state machine action enumeration list */
+enum
+{
+    BTA_PAN_API_CLOSE,
+    BTA_PAN_TX_PATH,
+    BTA_PAN_RX_PATH,
+    BTA_PAN_TX_FLOW,
+    BTA_PAN_WRITE_BUF,
+    BTA_PAN_CONN_OPEN,
+    BTA_PAN_CONN_CLOSE,
+    BTA_PAN_FREE_BUF,
+    BTA_PAN_IGNORE
+};
+
+
+
+/* type for action functions */
+typedef void (*tBTA_PAN_ACTION)(tBTA_PAN_SCB *p_scb, tBTA_PAN_DATA *p_data);
+
+
+
+
+/* action function list */
+const tBTA_PAN_ACTION bta_pan_action[] =
+{
+    bta_pan_api_close,
+    bta_pan_tx_path,
+    bta_pan_rx_path,
+    bta_pan_tx_flow,
+    bta_pan_write_buf,
+    bta_pan_conn_open,
+    bta_pan_conn_close,
+    bta_pan_free_buf,
+
+};
+
+/* state table information */
+#define BTA_PAN_ACTIONS              1       /* number of actions */
+#define BTA_PAN_NEXT_STATE           1       /* position of next state */
+#define BTA_PAN_NUM_COLS             2       /* number of columns in state tables */
+
+
+
+/* state table for listen state */
+const UINT8 bta_pan_st_idle[][BTA_PAN_NUM_COLS] =
+{
+   /* API_CLOSE */          {BTA_PAN_API_CLOSE,              BTA_PAN_IDLE_ST},
+   /* CI_TX_READY */        {BTA_PAN_IGNORE,                 BTA_PAN_IDLE_ST},
+   /* CI_RX_READY */        {BTA_PAN_IGNORE,                 BTA_PAN_IDLE_ST},
+   /* CI_TX_FLOW */         {BTA_PAN_IGNORE,                 BTA_PAN_IDLE_ST},
+   /* CI_RX_WRITE */        {BTA_PAN_IGNORE,                 BTA_PAN_IDLE_ST},
+   /* CI_RX_WRITEBUF */     {BTA_PAN_IGNORE,                 BTA_PAN_IDLE_ST},
+   /* PAN_CONN_OPEN */      {BTA_PAN_CONN_OPEN,              BTA_PAN_OPEN_ST},
+   /* PAN_CONN_CLOSE */     {BTA_PAN_CONN_OPEN,              BTA_PAN_IDLE_ST},
+   /* FLOW_ENABLE */        {BTA_PAN_IGNORE,                 BTA_PAN_IDLE_ST},
+   /* BNEP_DATA */          {BTA_PAN_IGNORE,                 BTA_PAN_IDLE_ST}
+
+};
+
+
+
+/* state table for open state */
+const UINT8 bta_pan_st_open[][BTA_PAN_NUM_COLS] =
+{
+   /* API_CLOSE */          {BTA_PAN_API_CLOSE,               BTA_PAN_OPEN_ST},
+   /* CI_TX_READY */        {BTA_PAN_TX_PATH,                 BTA_PAN_OPEN_ST},
+   /* CI_RX_READY */        {BTA_PAN_RX_PATH,                 BTA_PAN_OPEN_ST},
+   /* CI_TX_FLOW */         {BTA_PAN_TX_FLOW,                 BTA_PAN_OPEN_ST},
+   /* CI_RX_WRITE */        {BTA_PAN_IGNORE,                  BTA_PAN_OPEN_ST},
+   /* CI_RX_WRITEBUF */     {BTA_PAN_WRITE_BUF,               BTA_PAN_OPEN_ST},
+   /* PAN_CONN_OPEN */      {BTA_PAN_IGNORE,                  BTA_PAN_OPEN_ST},
+   /* PAN_CONN_CLOSE */     {BTA_PAN_CONN_CLOSE,              BTA_PAN_IDLE_ST},
+   /* FLOW_ENABLE */        {BTA_PAN_RX_PATH,                 BTA_PAN_OPEN_ST},
+   /* BNEP_DATA */          {BTA_PAN_TX_PATH,                 BTA_PAN_OPEN_ST}
+};
+
+/* state table for closing state */
+const UINT8 bta_pan_st_closing[][BTA_PAN_NUM_COLS] =
+{
+   /* API_CLOSE */          {BTA_PAN_IGNORE,                   BTA_PAN_CLOSING_ST},
+   /* CI_TX_READY */        {BTA_PAN_TX_PATH,                  BTA_PAN_CLOSING_ST},
+   /* CI_RX_READY */        {BTA_PAN_RX_PATH,                  BTA_PAN_CLOSING_ST},
+   /* CI_TX_FLOW */         {BTA_PAN_TX_FLOW,                  BTA_PAN_CLOSING_ST},
+   /* CI_RX_WRITE */        {BTA_PAN_IGNORE,                   BTA_PAN_CLOSING_ST},
+   /* CI_RX_WRITEBUF */     {BTA_PAN_FREE_BUF,                 BTA_PAN_CLOSING_ST},
+   /* PAN_CONN_OPEN */      {BTA_PAN_IGNORE,                   BTA_PAN_CLOSING_ST},
+   /* PAN_CONN_CLOSE */     {BTA_PAN_CONN_CLOSE,               BTA_PAN_IDLE_ST},
+   /* FLOW_ENABLE */        {BTA_PAN_RX_PATH,                  BTA_PAN_CLOSING_ST},
+   /* BNEP_DATA */          {BTA_PAN_TX_PATH,                  BTA_PAN_CLOSING_ST}
+};
+
+/* type for state table */
+typedef const UINT8 (*tBTA_PAN_ST_TBL)[BTA_PAN_NUM_COLS];
+
+/* state table */
+const tBTA_PAN_ST_TBL bta_pan_st_tbl[] = {
+    bta_pan_st_idle,
+    bta_pan_st_open,
+    bta_pan_st_closing
+};
+
+/*****************************************************************************
+** Global data
+*****************************************************************************/
+
+/* PAN control block */
+#if BTA_DYNAMIC_MEMORY == FALSE
+tBTA_PAN_CB  bta_pan_cb;
+#endif
+
+/*******************************************************************************
+**
+** Function         bta_pan_scb_alloc
+**
+** Description      Allocate a PAN server control block.
+**
+**
+** Returns          pointer to the scb, or NULL if none could be allocated.
+**
+*******************************************************************************/
+tBTA_PAN_SCB *bta_pan_scb_alloc(void)
+{
+    tBTA_PAN_SCB     *p_scb = &bta_pan_cb.scb[0];
+    int             i;
+
+    for (i = 0; i < BTA_PAN_NUM_CONN; i++, p_scb++)
+    {
+        if (!p_scb->in_use)
+        {
+            p_scb->in_use = TRUE;
+            APPL_TRACE_DEBUG("bta_pan_scb_alloc %d", i);
+            break;
+        }
+    }
+
+    if (i == BTA_PAN_NUM_CONN)
+    {
+        /* out of scbs */
+        p_scb = NULL;
+        APPL_TRACE_WARNING("Out of scbs");
+    }
+    return p_scb;
+}
+
+/*******************************************************************************
+**
+** Function         bta_pan_sm_execute
+**
+** Description      State machine event handling function for PAN
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_pan_sm_execute(tBTA_PAN_SCB *p_scb, UINT16 event, tBTA_PAN_DATA *p_data)
+{
+    tBTA_PAN_ST_TBL      state_table;
+    UINT8               action;
+    int                 i;
+
+    APPL_TRACE_EVENT("PAN scb=%d event=0x%x state=%d", bta_pan_scb_to_idx(p_scb), event, p_scb->state);
+
+    /* look up the state table for the current state */
+    state_table = bta_pan_st_tbl[p_scb->state];
+
+    event &= 0x00FF;
+
+    /* set next state */
+    p_scb->state = state_table[event][BTA_PAN_NEXT_STATE];
+
+    /* execute action functions */
+    for (i = 0; i < BTA_PAN_ACTIONS; i++)
+    {
+        if ((action = state_table[event][i]) != BTA_PAN_IGNORE)
+        {
+            (*bta_pan_action[action])(p_scb, p_data);
+        }
+        else
+        {
+            break;
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_pan_api_enable
+**
+** Description      Handle an API enable event.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_pan_api_enable(tBTA_PAN_DATA *p_data)
+{
+    /* initialize control block */
+    memset(&bta_pan_cb, 0, sizeof(bta_pan_cb));
+
+    /* store callback function */
+    bta_pan_cb.p_cback = p_data->api_enable.p_cback;
+    bta_pan_enable(p_data);
+}
+
+/*******************************************************************************
+**
+** Function         bta_pan_api_disable
+**
+** Description      Handle an API disable event.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_pan_api_disable(tBTA_PAN_DATA *p_data)
+{
+    UNUSED(p_data);
+
+    bta_pan_disable();
+}
+
+
+/*******************************************************************************
+**
+** Function         bta_pan_api_open
+**
+** Description      Handle an API listen event.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_pan_api_open(tBTA_PAN_DATA *p_data)
+{
+    tBTA_PAN_SCB     *p_scb;
+    tBTA_PAN_OPEN data;
+
+    /* allocate an scb */
+    if ((p_scb = bta_pan_scb_alloc()) != NULL)
+    {
+        bta_pan_open(p_scb, p_data);
+    }
+    else
+    {
+        bdcpy(data.bd_addr, p_data->api_open.bd_addr);
+        data.status = BTA_PAN_FAIL;
+        bta_pan_cb.p_cback(BTA_PAN_OPEN_EVT, (tBTA_PAN *)&data);
+
+    }
+}
+/*******************************************************************************
+**
+** Function         bta_pan_scb_dealloc
+**
+** Description      Deallocate a link control block.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_pan_scb_dealloc(tBTA_PAN_SCB *p_scb)
+{
+    APPL_TRACE_DEBUG("bta_pan_scb_dealloc %d", bta_pan_scb_to_idx(p_scb));
+    fixed_queue_free(p_scb->data_queue, NULL);
+    memset(p_scb, 0, sizeof(tBTA_PAN_SCB));
+}
+
+/*******************************************************************************
+**
+** Function         bta_pan_scb_to_idx
+**
+** Description      Given a pointer to an scb, return its index.
+**
+**
+** Returns          Index of scb.
+**
+*******************************************************************************/
+UINT8 bta_pan_scb_to_idx(tBTA_PAN_SCB *p_scb)
+{
+
+    return ((UINT8) (p_scb - bta_pan_cb.scb)) + 1;
+}
+
+
+
+/*******************************************************************************
+**
+** Function         bta_pan_scb_by_handle
+**
+** Description      Find scb associated with handle.
+**
+**
+** Returns          Pointer to scb or NULL if not found.
+**
+*******************************************************************************/
+tBTA_PAN_SCB *bta_pan_scb_by_handle(UINT16 handle)
+{
+    tBTA_PAN_SCB     *p_scb = &bta_pan_cb.scb[0];
+    UINT8 i;
+
+    for (i = 0; i < BTA_PAN_NUM_CONN; i++, p_scb++)
+    {
+        if (p_scb->handle == handle)
+        {
+            return p_scb;;
+        }
+    }
+
+
+    APPL_TRACE_WARNING("No scb for handle %d", handle);
+
+    return NULL;
+}
+
+/*******************************************************************************
+**
+** Function         bta_pan_hdl_event
+**
+** Description      Data gateway main event handling function.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+BOOLEAN bta_pan_hdl_event(BT_HDR *p_msg)
+{
+    tBTA_PAN_SCB *p_scb;
+    BOOLEAN     freebuf = TRUE;
+
+    switch (p_msg->event)
+    {
+        /* handle enable event */
+        case BTA_PAN_API_ENABLE_EVT:
+            bta_pan_api_enable((tBTA_PAN_DATA *) p_msg);
+            break;
+
+        /* handle disable event */
+        case BTA_PAN_API_DISABLE_EVT:
+            bta_pan_api_disable((tBTA_PAN_DATA *) p_msg);
+            break;
+
+        /* handle set role event */
+        case BTA_PAN_API_SET_ROLE_EVT:
+            bta_pan_set_role((tBTA_PAN_DATA *) p_msg);
+            break;
+
+        /* handle open event */
+        case BTA_PAN_API_OPEN_EVT:
+            bta_pan_api_open((tBTA_PAN_DATA *) p_msg);
+            break;
+
+
+        /* events that require buffer not be released */
+        case BTA_PAN_CI_RX_WRITEBUF_EVT:
+            freebuf = FALSE;
+            if ((p_scb = bta_pan_scb_by_handle(p_msg->layer_specific)) != NULL)
+            {
+                bta_pan_sm_execute(p_scb, p_msg->event, (tBTA_PAN_DATA *) p_msg);
+            }
+            break;
+
+        /* all other events */
+        default:
+            if ((p_scb = bta_pan_scb_by_handle(p_msg->layer_specific)) != NULL)
+            {
+                bta_pan_sm_execute(p_scb, p_msg->event, (tBTA_PAN_DATA *) p_msg);
+            }
+            break;
+
+    }
+    return freebuf;
+}
+#endif /* BTA_PAN_INCLUDED */
diff --git a/rtkbt/code/bt/bta/pb/bta_pbs_int.h b/rtkbt/code/bt/bta/pb/bta_pbs_int.h
new file mode 100755
index 0000000..fb78842
--- /dev/null
+++ b/rtkbt/code/bt/bta/pb/bta_pbs_int.h
@@ -0,0 +1,59 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the private file for the phone book access server (PBS).
+ *
+ ******************************************************************************/
+#ifndef BTA_PBS_INT_H
+#define BTA_PBS_INT_H
+
+#include "bt_target.h"
+#include "bta_sys.h"
+
+/*****************************************************************************
+**  Constants and data types
+*****************************************************************************/
+
+/* Profile supported features */
+#define BTA_PBS_SUPF_DOWNLOAD     0x0001
+#define BTA_PBS_SURF_BROWSE       0x0002
+
+/* Profile supported repositories */
+#define BTA_PBS_REPOSIT_LOCAL      0x01    /* Local PhoneBook */
+#define BTA_PBS_REPOSIT_SIM        0x02    /* SIM card PhoneBook */
+
+#define BTA_PBS_TARGET_UUID "\x79\x61\x35\xf0\xf0\xc5\x11\xd8\x09\x66\x08\x00\x20\x0c\x9a\x66"
+#define BTA_PBS_UUID_LENGTH                 16
+#define BTA_PBS_MAX_AUTH_KEY_SIZE           16  /* Must not be greater than OBX_MAX_AUTH_KEY_SIZE */
+
+#define BTA_PBS_DEFAULT_VERSION             0x0101  /* for PBAP PSE version 1.1 */
+
+
+/* Configuration structure */
+typedef struct
+{
+    UINT8       realm_charset;          /* Server only */
+    BOOLEAN     userid_req;             /* TRUE if user id is required during obex authentication (Server only) */
+    UINT8       supported_features;     /* Server supported features */
+    UINT8       supported_repositories; /* Server supported repositories */
+
+} tBTA_PBS_CFG;
+
+#endif /* BTA_PBS_INT_H */
diff --git a/rtkbt/code/bt/bta/sdp/bta_sdp.c b/rtkbt/code/bt/bta/sdp/bta_sdp.c
new file mode 100755
index 0000000..88a68a5
--- /dev/null
+++ b/rtkbt/code/bt/bta/sdp/bta_sdp.c
@@ -0,0 +1,77 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 The Android Open Source Project
+
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the main implementation file for the BTA MCE I/F
+ *
+ ******************************************************************************/
+
+#include <stdlib.h>
+
+#include "bta_api.h"
+#include "bta_sys.h"
+#include "bta_sdp_api.h"
+#include "bta_sdp_int.h"
+
+/*****************************************************************************
+** Constants and types
+*****************************************************************************/
+
+#if BTA_DYNAMIC_MEMORY == FALSE
+tBTA_SDP_CB bta_sdp_cb;
+#endif
+
+/* state machine action enumeration list */
+#define BTA_SDP_NUM_ACTIONS  (BTA_SDP_MAX_INT_EVT & 0x00ff)
+
+/* type for action functions */
+typedef void (*tBTA_SDP_ACTION)(tBTA_SDP_MSG *p_data);
+
+/* action function list */
+const tBTA_SDP_ACTION bta_sdp_action[] =
+{
+    bta_sdp_enable,  /* BTA_SDP_API_ENABLE_EVT */
+    bta_sdp_search,  /* BTA_SDP_API_SEARCH_EVT */
+    bta_sdp_create_record,  /* BTA_SDP_API_CREATE_RECORD_USER_EVT */
+    bta_sdp_remove_record,  /* BTA_SDP_API_REMOVE_RECORD_USER_EVT */
+};
+
+/*******************************************************************************
+** Function         bta_sdp_sm_execute
+**
+** Description      State machine event handling function for SDP search
+**
+** Returns          void
+*******************************************************************************/
+BOOLEAN bta_sdp_sm_execute(BT_HDR *p_msg)
+{
+    if(p_msg == NULL) return FALSE;
+
+    BOOLEAN ret = FALSE;
+    UINT16 action = (p_msg->event & 0x00ff);
+
+    /* execute action functions */
+    if(action < BTA_SDP_NUM_ACTIONS)
+    {
+        (*bta_sdp_action[action])((tBTA_SDP_MSG*)p_msg);
+        ret = TRUE;
+    }
+
+    return(ret);
+}
diff --git a/rtkbt/code/bt/bta/sdp/bta_sdp_act.c b/rtkbt/code/bt/bta/sdp/bta_sdp_act.c
new file mode 100755
index 0000000..0168b9c
--- /dev/null
+++ b/rtkbt/code/bt/bta/sdp/bta_sdp_act.c
@@ -0,0 +1,564 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 The Android Open Source Project
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *  This file contains action functions for SDP search.
+ ******************************************************************************/
+
+#include <hardware/bluetooth.h>
+#include <hardware/bt_sdp.h>
+#include <arpa/inet.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "osi/include/allocator.h"
+#include "bt_types.h"
+#include "bt_common.h"
+#include "utl.h"
+#include "bta_sys.h"
+#include "bta_api.h"
+#include "bta_sdp_api.h"
+#include "bta_sdp_int.h"
+#include "btm_api.h"
+#include "btm_int.h"
+#include "sdp_api.h"
+
+/*****************************************************************************
+**  Constants
+*****************************************************************************/
+
+static const uint8_t  UUID_OBEX_OBJECT_PUSH[] = {0x00, 0x00, 0x11, 0x05, 0x00, 0x00, 0x10, 0x00,
+                                                 0x80, 0x00, 0x00, 0x80, 0x5F, 0x9B, 0x34, 0xFB};
+static const uint8_t  UUID_PBAP_PSE[] = {0x00, 0x00, 0x11, 0x2F, 0x00, 0x00, 0x10, 0x00,
+                                         0x80, 0x00, 0x00, 0x80, 0x5F, 0x9B, 0x34, 0xFB};
+static const uint8_t  UUID_MAP_MAS[] = {0x00, 0x00, 0x11, 0x32, 0x00, 0x00, 0x10, 0x00,
+                                        0x80, 0x00, 0x00, 0x80, 0x5F, 0x9B, 0x34, 0xFB};
+static const uint8_t  UUID_MAP_MNS[] = {0x00, 0x00, 0x11, 0x33, 0x00, 0x00, 0x10, 0x00,
+                                        0x80, 0x00, 0x00, 0x80, 0x5F, 0x9B, 0x34, 0xFB};
+static const uint8_t  UUID_SAP[] = {0x00, 0x00, 0x11, 0x2D, 0x00, 0x00, 0x10, 0x00,
+                                    0x80, 0x00, 0x00, 0x80, 0x5F, 0x9B, 0x34, 0xFB};
+// TODO:
+// Both the fact that the UUIDs are declared in multiple places, plus the fact
+// that there is a mess of UUID comparison and shortening methods will have to
+// be fixed.
+// The btcore->uuid module should be used for all instances.
+
+#define UUID_MAX_LENGTH 16
+#define IS_UUID(u1,u2)  !memcmp(u1,u2,UUID_MAX_LENGTH)
+
+static inline tBT_UUID shorten_sdp_uuid(const tBT_UUID* u)
+{
+    static uint8_t bt_base_uuid[] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00,
+                                     0x80, 0x00, 0x00, 0x80, 0x5F, 0x9B, 0x34, 0xFB };
+
+    APPL_TRACE_DEBUG("%s() - uuid len:%d", __func__, u->len);
+    if(u->len != 16)
+        return *u;
+
+    if(memcmp(&u->uu.uuid128[4], &bt_base_uuid[4], 12) != 0)
+        return *u;
+
+    tBT_UUID su;
+    memset(&su, 0, sizeof(su));
+    if(u->uu.uuid128[0] == 0 && u->uu.uuid128[1] == 0)
+    {
+        su.len = 2;
+        uint16_t u16;
+        memcpy(&u16, &u->uu.uuid128[2], sizeof(u16));
+        su.uu.uuid16 = ntohs(u16);
+    } else {
+        su.len = 4;
+        uint32_t u32;
+        memcpy(&u32, &u->uu.uuid128[0], sizeof(u32));
+        su.uu.uuid32 = ntohl(u32);
+    }
+    return su;
+}
+
+static void bta_create_mns_sdp_record(bluetooth_sdp_record *record, tSDP_DISC_REC *p_rec)
+{
+    tSDP_DISC_ATTR *p_attr;
+    tSDP_PROTOCOL_ELEM pe;
+    UINT16 pversion = 0;
+    record->mns.hdr.type = SDP_TYPE_MAP_MNS;
+    record->mns.hdr.service_name_length = 0;
+    record->mns.hdr.service_name = NULL;
+    record->mns.hdr.rfcomm_channel_number = 0;
+    record->mns.hdr.l2cap_psm = -1;
+    record->mns.hdr.profile_version = 0;
+    record->mns.supported_features = 0x0000001F; //default value if not found
+
+    if ((p_attr = SDP_FindAttributeInRec(p_rec, ATTR_ID_MAP_SUPPORTED_FEATURES)) != NULL)
+    {
+        record->mns.supported_features = p_attr->attr_value.v.u32;
+    }
+
+    if ((p_attr = SDP_FindAttributeInRec(p_rec, ATTR_ID_SERVICE_NAME)) != NULL)
+    {
+        record->mns.hdr.service_name_length = SDP_DISC_ATTR_LEN(p_attr->attr_len_type);
+        record->mns.hdr.service_name = (char *)p_attr->attr_value.v.array;
+    }
+
+    if (SDP_FindProfileVersionInRec(p_rec, UUID_SERVCLASS_MAP_PROFILE, &pversion))
+    {
+        record->mns.hdr.profile_version = pversion;
+    }
+
+    if (SDP_FindProtocolListElemInRec(p_rec, UUID_PROTOCOL_RFCOMM, &pe))
+    {
+        record->mns.hdr.rfcomm_channel_number = pe.params[0];
+    }
+
+    if ((p_attr = SDP_FindAttributeInRec(p_rec, ATTR_ID_GOEP_L2CAP_PSM)) != NULL)
+    {
+        record->mns.hdr.l2cap_psm = p_attr->attr_value.v.u16;
+    }
+}
+
+static void bta_create_mas_sdp_record(bluetooth_sdp_record *record, tSDP_DISC_REC *p_rec)
+{
+    tSDP_DISC_ATTR *p_attr;
+    tSDP_PROTOCOL_ELEM pe;
+    UINT16 pversion = -1;
+
+    record->mas.hdr.type = SDP_TYPE_MAP_MAS;
+    record->mas.hdr.service_name_length = 0;
+    record->mas.hdr.service_name = NULL;
+    record->mas.hdr.rfcomm_channel_number = 0;
+    record->mas.hdr.l2cap_psm = -1;
+    record->mas.hdr.profile_version = 0;
+    record->mas.mas_instance_id = 0;
+    record->mas.supported_features = 0x0000001F;
+    record->mas.supported_message_types = 0;
+
+    if ((p_attr = SDP_FindAttributeInRec(p_rec, ATTR_ID_MAS_INSTANCE_ID)) != NULL)
+    {
+        record->mas.mas_instance_id = p_attr->attr_value.v.u8;
+    }
+
+    if ((p_attr = SDP_FindAttributeInRec(p_rec, ATTR_ID_SUPPORTED_MSG_TYPE)) != NULL)
+    {
+        record->mas.supported_message_types = p_attr->attr_value.v.u8;
+    }
+
+    if ((p_attr = SDP_FindAttributeInRec(p_rec, ATTR_ID_MAP_SUPPORTED_FEATURES)) != NULL)
+    {
+        record->mas.supported_features = p_attr->attr_value.v.u32;
+    }
+
+    if ((p_attr = SDP_FindAttributeInRec(p_rec, ATTR_ID_SERVICE_NAME)) != NULL)
+    {
+        record->mas.hdr.service_name_length = SDP_DISC_ATTR_LEN(p_attr->attr_len_type);
+        record->mas.hdr.service_name = (char *)p_attr->attr_value.v.array;
+    }
+
+    if (SDP_FindProfileVersionInRec(p_rec, UUID_SERVCLASS_MAP_PROFILE, &pversion))
+    {
+        record->mas.hdr.profile_version = pversion;
+    }
+
+    if (SDP_FindProtocolListElemInRec(p_rec, UUID_PROTOCOL_RFCOMM, &pe))
+    {
+        record->mas.hdr.rfcomm_channel_number = pe.params[0];
+    }
+
+    if ((p_attr = SDP_FindAttributeInRec(p_rec, ATTR_ID_GOEP_L2CAP_PSM)) != NULL)
+    {
+        record->mas.hdr.l2cap_psm = p_attr->attr_value.v.u16;
+    }
+}
+
+static void bta_create_pse_sdp_record(bluetooth_sdp_record *record, tSDP_DISC_REC *p_rec)
+{
+    tSDP_DISC_ATTR *p_attr;
+    UINT16 pversion;
+    tSDP_PROTOCOL_ELEM pe;
+
+    record->pse.hdr.type = SDP_TYPE_PBAP_PSE;
+    record->pse.hdr.service_name_length = 0;
+    record->pse.hdr.service_name = NULL;
+    record->pse.hdr.rfcomm_channel_number = 0;
+    record->pse.hdr.l2cap_psm = -1;
+    record->pse.hdr.profile_version = 0;
+    record->pse.supported_features = 0x00000003;
+    record->pse.supported_repositories = 0;
+
+    if ((p_attr = SDP_FindAttributeInRec(p_rec, ATTR_ID_SUPPORTED_REPOSITORIES)) != NULL)
+    {
+        record->pse.supported_repositories = p_attr->attr_value.v.u8;
+    }
+    if ((p_attr = SDP_FindAttributeInRec(p_rec, ATTR_ID_PBAP_SUPPORTED_FEATURES)) != NULL)
+    {
+        record->pse.supported_features = p_attr->attr_value.v.u32;
+    }
+
+    if ((p_attr = SDP_FindAttributeInRec(p_rec, ATTR_ID_SERVICE_NAME)) != NULL)
+    {
+        record->pse.hdr.service_name_length = SDP_DISC_ATTR_LEN(p_attr->attr_len_type);
+        record->pse.hdr.service_name = (char *)p_attr->attr_value.v.array;
+    }
+
+    if (SDP_FindProfileVersionInRec(p_rec, UUID_SERVCLASS_PHONE_ACCESS, &pversion))
+    {
+        record->pse.hdr.profile_version = pversion;
+    }
+
+    if (SDP_FindProtocolListElemInRec(p_rec, UUID_PROTOCOL_RFCOMM, &pe))
+    {
+        record->pse.hdr.rfcomm_channel_number = pe.params[0];
+    }
+
+    if ((p_attr = SDP_FindAttributeInRec(p_rec, ATTR_ID_GOEP_L2CAP_PSM)) != NULL)
+    {
+        record->pse.hdr.l2cap_psm = p_attr->attr_value.v.u16;
+    }
+}
+
+static void bta_create_ops_sdp_record(bluetooth_sdp_record *record, tSDP_DISC_REC *p_rec)
+{
+    tSDP_DISC_ATTR *p_attr, *p_sattr;
+    tSDP_PROTOCOL_ELEM pe;
+    UINT16 pversion = -1;
+
+    record->ops.hdr.type = SDP_TYPE_OPP_SERVER;
+    record->ops.hdr.service_name_length = 0;
+    record->ops.hdr.service_name = NULL;
+    record->ops.hdr.rfcomm_channel_number = 0;
+    record->ops.hdr.l2cap_psm = -1;
+    record->ops.hdr.profile_version = 0;
+    record->ops.supported_formats_list_len = 0;
+
+    if ((p_attr = SDP_FindAttributeInRec(p_rec, ATTR_ID_SERVICE_NAME)) != NULL)
+    {
+        record->ops.hdr.service_name_length = SDP_DISC_ATTR_LEN(p_attr->attr_len_type);
+        record->ops.hdr.service_name = (char *)p_attr->attr_value.v.array;
+    }
+
+    if (SDP_FindProfileVersionInRec(p_rec, UUID_SERVCLASS_OBEX_OBJECT_PUSH, &pversion))
+    {
+        record->ops.hdr.profile_version = pversion;
+    }
+
+    if (SDP_FindProtocolListElemInRec(p_rec, UUID_PROTOCOL_RFCOMM, &pe))
+    {
+        record->ops.hdr.rfcomm_channel_number = pe.params[0];
+    }
+
+    if ((p_attr = SDP_FindAttributeInRec(p_rec, ATTR_ID_GOEP_L2CAP_PSM)) != NULL)
+    {
+        record->ops.hdr.l2cap_psm = p_attr->attr_value.v.u16;
+    }
+    if ((p_attr = SDP_FindAttributeInRec(p_rec, ATTR_ID_SUPPORTED_FORMATS_LIST)) != NULL)
+    {
+        /* Safety check - each entry should itself be a sequence */
+        if (SDP_DISC_ATTR_TYPE(p_attr->attr_len_type) != DATA_ELE_SEQ_DESC_TYPE) {
+            record->ops.supported_formats_list_len = 0;
+            APPL_TRACE_ERROR("%s() - supported_formats_list - wrong attribute length/type:"
+                    " 0x%02x - expected 0x06", __func__, p_attr->attr_len_type);
+        } else {
+            int count = 0;
+            /* 1 byte for type/length 1 byte for value */
+            record->ops.supported_formats_list_len = SDP_DISC_ATTR_LEN(p_attr->attr_len_type)/2;
+
+            /* Extract each value into */
+            for (p_sattr = p_attr->attr_value.v.p_sub_attr;
+                    p_sattr != NULL; p_sattr = p_sattr->p_next_attr)
+            {
+                if ((SDP_DISC_ATTR_TYPE(p_sattr->attr_len_type) == UINT_DESC_TYPE)
+                    && (SDP_DISC_ATTR_LEN(p_sattr->attr_len_type) == 1))
+                {
+                    if (count == sizeof(record->ops.supported_formats_list)) {
+                        APPL_TRACE_ERROR("%s() - supported_formats_list - count overflow - "
+                                "too many sub attributes!!", __func__);
+                        /* If you hit this, new formats have been added,
+                         * update SDP_OPP_SUPPORTED_FORMATS_MAX_LENGTH */
+                        break;
+                    }
+                    record->ops.supported_formats_list[count] = p_sattr->attr_value.v.u8;
+                    count++;
+                } else {
+                    APPL_TRACE_ERROR("%s() - supported_formats_list - wrong sub attribute "
+                                "length/type: 0x%02x - expected 0x80", __func__,
+                                p_sattr->attr_len_type);
+                    break;
+                }
+            }
+            if (record->ops.supported_formats_list_len != count) {
+                APPL_TRACE_WARNING("%s() - supported_formats_list - Length of attribute different "
+                        "from the actual number of sub-attributes in the sequence "
+                        "att-length: %d - number of elements: %d", __func__,
+                        record->ops.supported_formats_list_len , count);
+
+            }
+            record->ops.supported_formats_list_len = count;
+        }
+    }
+}
+
+static void bta_create_sap_sdp_record(bluetooth_sdp_record *record, tSDP_DISC_REC *p_rec)
+{
+    tSDP_DISC_ATTR *p_attr;
+    tSDP_PROTOCOL_ELEM pe;
+    UINT16 pversion = -1;
+
+    record->sap.hdr.type = SDP_TYPE_MAP_MAS;
+    record->sap.hdr.service_name_length = 0;
+    record->sap.hdr.service_name = NULL;
+    record->sap.hdr.rfcomm_channel_number = 0;
+    record->sap.hdr.l2cap_psm = -1;
+    record->sap.hdr.profile_version = 0;
+
+    if ((p_attr = SDP_FindAttributeInRec(p_rec, ATTR_ID_SERVICE_NAME)) != NULL)
+    {
+        record->sap.hdr.service_name_length = SDP_DISC_ATTR_LEN(p_attr->attr_len_type);
+        record->sap.hdr.service_name = (char *)p_attr->attr_value.v.array;
+    }
+
+    if (SDP_FindProfileVersionInRec(p_rec, UUID_SERVCLASS_SAP, &pversion))
+    {
+        record->sap.hdr.profile_version = pversion;
+    }
+
+    if (SDP_FindProtocolListElemInRec(p_rec, UUID_PROTOCOL_RFCOMM, &pe))
+    {
+        record->sap.hdr.rfcomm_channel_number = pe.params[0];
+    }
+}
+
+static void bta_create_raw_sdp_record(bluetooth_sdp_record *record, tSDP_DISC_REC *p_rec)
+{
+    tSDP_DISC_ATTR *p_attr;
+    tSDP_PROTOCOL_ELEM pe;
+
+    record->hdr.type = SDP_TYPE_RAW;
+    record->hdr.service_name_length = 0;
+    record->hdr.service_name = NULL;
+    record->hdr.rfcomm_channel_number = -1;
+    record->hdr.l2cap_psm = -1;
+    record->hdr.profile_version = -1;
+
+    /* Try to extract a service name */
+    if ((p_attr = SDP_FindAttributeInRec(p_rec, ATTR_ID_SERVICE_NAME)) != NULL)
+    {
+        record->pse.hdr.service_name_length = SDP_DISC_ATTR_LEN(p_attr->attr_len_type);
+        record->pse.hdr.service_name = (char *)p_attr->attr_value.v.array;
+    }
+
+    /* Try to extract an RFCOMM channel */
+    if (SDP_FindProtocolListElemInRec(p_rec, UUID_PROTOCOL_RFCOMM, &pe))
+    {
+        record->pse.hdr.rfcomm_channel_number = pe.params[0];
+    }
+    record->hdr.user1_ptr_len = p_bta_sdp_cfg->p_sdp_db->raw_size;
+    record->hdr.user1_ptr = p_bta_sdp_cfg->p_sdp_db->raw_data;
+}
+
+
+/*******************************************************************************
+**
+** Function     bta_sdp_search_cback
+**
+** Description  Callback from btm after search is completed
+**
+** Returns      void
+**
+*******************************************************************************/
+static void bta_sdp_search_cback(UINT16 result, void * user_data)
+{
+    tSDP_DISC_REC *p_rec = NULL;
+    tBTA_SDP_SEARCH_COMP evt_data;
+    tBTA_SDP_STATUS status = BTA_SDP_FAILURE;
+    int count = 0;
+    tBT_UUID su;
+    APPL_TRACE_DEBUG("%s() -  res: 0x%x", __func__, result);
+
+    memset(&evt_data, 0, sizeof(evt_data));
+    bta_sdp_cb.sdp_active = BTA_SDP_ACTIVE_NONE;
+
+    if (bta_sdp_cb.p_dm_cback == NULL) return;
+
+    bdcpy(evt_data.remote_addr, bta_sdp_cb.remote_addr);
+    tBT_UUID *uuid = (tBT_UUID*)user_data;
+    memcpy(&evt_data.uuid, uuid, sizeof(tBT_UUID));
+    su = shorten_sdp_uuid(uuid);
+
+    if (result == SDP_SUCCESS || result == SDP_DB_FULL)
+    {
+        do {
+            p_rec = SDP_FindServiceUUIDInDb(p_bta_sdp_cfg->p_sdp_db, &su, p_rec);
+            /* generate the matching record data pointer */
+            if(p_rec != NULL){
+                status = BTA_SDP_SUCCESS;
+                if (IS_UUID(UUID_MAP_MAS,uuid->uu.uuid128)) {
+                    APPL_TRACE_DEBUG("%s() - found MAP (MAS) uuid", __func__);
+                    bta_create_mas_sdp_record(&evt_data.records[count], p_rec);
+                } else if (IS_UUID(UUID_MAP_MNS,uuid->uu.uuid128)) {
+                    APPL_TRACE_DEBUG("%s() - found MAP (MNS) uuid", __func__);
+                    bta_create_mns_sdp_record(&evt_data.records[count], p_rec);
+                } else if (IS_UUID(UUID_PBAP_PSE,uuid->uu.uuid128)){
+                    APPL_TRACE_DEBUG("%s() - found PBAP (PSE) uuid", __func__);
+                    bta_create_pse_sdp_record(&evt_data.records[count], p_rec);
+                } else if (IS_UUID(UUID_OBEX_OBJECT_PUSH,uuid->uu.uuid128)){
+                    APPL_TRACE_DEBUG("%s() - found Object Push Server (OPS) uuid", __func__);
+                    bta_create_ops_sdp_record(&evt_data.records[count], p_rec);
+                } else if (IS_UUID(UUID_SAP,uuid->uu.uuid128)) {
+                    APPL_TRACE_DEBUG("%s() - found SAP uuid", __func__);
+                    bta_create_sap_sdp_record(&evt_data.records[count], p_rec);
+                } else {
+
+                    /* we do not have specific structure for this */
+                    APPL_TRACE_DEBUG("%s() - profile not identified. using raw data", __func__);
+                    bta_create_raw_sdp_record(&evt_data.records[count], p_rec);
+                    p_rec = NULL; // Terminate loop
+                    /* For raw, we only extract the first entry, and then return the entire
+                       raw data chunk.
+                       TODO: Find a way to split the raw data into record chunks, and iterate
+                             to extract generic data for each chunk - e.g. rfcomm channel and
+                             service name. */
+                }
+                count++;
+            } else {
+                APPL_TRACE_DEBUG("%s() - UUID not found", __func__);
+            }
+        } while (p_rec != NULL && count < BTA_SDP_MAX_RECORDS);
+
+        evt_data.record_count = count;
+    }
+    evt_data.status = status;
+
+    bta_sdp_cb.p_dm_cback(BTA_SDP_SEARCH_COMP_EVT, (tBTA_SDP*) &evt_data, (void*)&uuid->uu.uuid128);
+    osi_free(user_data); // We no longer need the user data to track the search
+}
+
+/*******************************************************************************
+**
+** Function     bta_sdp_enable
+**
+** Description  Initializes the SDP I/F
+**
+** Returns      void
+**
+*******************************************************************************/
+void bta_sdp_enable(tBTA_SDP_MSG *p_data)
+{
+    APPL_TRACE_DEBUG("%s in, sdp_active:%d", __func__, bta_sdp_cb.sdp_active);
+    tBTA_SDP_STATUS status = BTA_SDP_SUCCESS;
+    bta_sdp_cb.p_dm_cback = p_data->enable.p_cback;
+    bta_sdp_cb.p_dm_cback(BTA_SDP_ENABLE_EVT, (tBTA_SDP *)&status, NULL);
+}
+
+/*******************************************************************************
+**
+** Function     bta_sdp_search
+**
+** Description  Discovers all sdp records for an uuid on remote device
+**
+** Returns      void
+**
+*******************************************************************************/
+void bta_sdp_search(tBTA_SDP_MSG *p_data)
+{
+    if (p_data == NULL) {
+        APPL_TRACE_DEBUG("SDP control block handle is null");
+        return;
+    }
+    tBTA_SDP_STATUS status = BTA_SDP_FAILURE;
+
+    APPL_TRACE_DEBUG("%s in, sdp_active:%d", __func__, bta_sdp_cb.sdp_active);
+
+    if (bta_sdp_cb.sdp_active != BTA_SDP_ACTIVE_NONE)
+    {
+        /* SDP is still in progress */
+        status = BTA_SDP_BUSY;
+        if(bta_sdp_cb.p_dm_cback) {
+            tBTA_SDP_SEARCH_COMP result;
+            memset(&result, 0, sizeof(result));
+            result.uuid = p_data->get_search.uuid;
+            bdcpy(result.remote_addr, p_data->get_search.bd_addr);
+            result.status = status;
+            bta_sdp_cb.p_dm_cback(BTA_SDP_SEARCH_COMP_EVT, (tBTA_SDP *)&result, NULL);
+        }
+        return;
+    }
+
+    bta_sdp_cb.sdp_active = BTA_SDP_ACTIVE_YES;
+    bdcpy(bta_sdp_cb.remote_addr, p_data->get_search.bd_addr);
+    /* set the uuid used in the search */
+    tBT_UUID *bta_sdp_search_uuid = osi_malloc(sizeof(tBT_UUID));
+    memcpy(bta_sdp_search_uuid, &(p_data->get_search.uuid),sizeof(tBT_UUID));
+
+    /* initialize the search for the uuid */
+    APPL_TRACE_DEBUG("%s init discovery with UUID(len: %d):",
+            __func__, bta_sdp_search_uuid->len);
+    for (int x = 0; x<bta_sdp_search_uuid->len;x++){
+        APPL_TRACE_DEBUG("%X",bta_sdp_search_uuid->uu.uuid128[x]);
+    }
+    SDP_InitDiscoveryDb (p_bta_sdp_cfg->p_sdp_db, p_bta_sdp_cfg->sdp_db_size, 1,
+                                bta_sdp_search_uuid, 0, NULL);
+
+    if (!SDP_ServiceSearchAttributeRequest2(p_data->get_search.bd_addr, p_bta_sdp_cfg->p_sdp_db,
+                                                bta_sdp_search_cback, (void*)bta_sdp_search_uuid))
+    {
+        bta_sdp_cb.sdp_active = BTA_SDP_ACTIVE_NONE;
+
+        /* failed to start SDP. report the failure right away */
+        if (bta_sdp_cb.p_dm_cback) {
+            tBTA_SDP_SEARCH_COMP result;
+            memset(&result, 0, sizeof(result));
+            result.uuid = p_data->get_search.uuid;
+            bdcpy(result.remote_addr, p_data->get_search.bd_addr);
+            result.status = status;
+            bta_sdp_cb.p_dm_cback(BTA_SDP_SEARCH_COMP_EVT, (tBTA_SDP *)&result, NULL);
+        }
+    }
+    /*
+    else report the result when the cback is called
+    */
+}
+
+/*******************************************************************************
+**
+** Function     bta_sdp_record
+**
+** Description  Discovers all sdp records for an uuid on remote device
+**
+** Returns      void
+**
+*******************************************************************************/
+void bta_sdp_create_record(tBTA_SDP_MSG *p_data)
+{
+    APPL_TRACE_DEBUG("%s() event: %d", __func__, p_data->record.hdr.event);
+    if (bta_sdp_cb.p_dm_cback)
+        bta_sdp_cb.p_dm_cback(BTA_SDP_CREATE_RECORD_USER_EVT, NULL, p_data->record.user_data);
+}
+
+/*******************************************************************************
+**
+** Function     bta_sdp_create_record
+**
+** Description  Discovers all sdp records for an uuid on remote device
+**
+** Returns      void
+**
+*******************************************************************************/
+void bta_sdp_remove_record(tBTA_SDP_MSG *p_data)
+{
+    APPL_TRACE_DEBUG("%s() event: %d", __func__, p_data->record.hdr.event);
+    if (bta_sdp_cb.p_dm_cback)
+        bta_sdp_cb.p_dm_cback(BTA_SDP_REMOVE_RECORD_USER_EVT, NULL, p_data->record.user_data);
+}
diff --git a/rtkbt/code/bt/bta/sdp/bta_sdp_api.c b/rtkbt/code/bt/bta/sdp/bta_sdp_api.c
new file mode 100755
index 0000000..50d74d4
--- /dev/null
+++ b/rtkbt/code/bt/bta/sdp/bta_sdp_api.c
@@ -0,0 +1,164 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 The Android Open Source Project
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the implementation of the API for SDP search subsystem
+ *
+ ******************************************************************************/
+
+#include "bta_api.h"
+#include "bta_sys.h"
+#include "bta_sdp_api.h"
+#include "bta_sdp_int.h"
+#include "bt_common.h"
+#include <string.h>
+#include "port_api.h"
+#include "sdp_api.h"
+
+/*****************************************************************************
+**  Constants
+*****************************************************************************/
+
+static const tBTA_SYS_REG bta_sdp_reg =
+{
+    bta_sdp_sm_execute,
+    NULL
+};
+
+/*******************************************************************************
+**
+** Function         BTA_SdpEnable
+**
+** Description      Enable the SDP search I/F service. When the enable
+**                  operation is complete the callback function will be
+**                  called with a BTA_SDP_ENABLE_EVT. This function must
+**                  be called before other functions in the SDP search API are
+**                  called.
+**
+** Returns          BTA_SDP_SUCCESS if successful.
+**                  BTA_SDP_FAIL if internal failure.
+**
+*******************************************************************************/
+tBTA_SDP_STATUS BTA_SdpEnable(tBTA_SDP_DM_CBACK *p_cback)
+{
+    tBTA_SDP_STATUS status = BTA_SDP_FAILURE;
+
+    APPL_TRACE_API(__FUNCTION__);
+    if(p_cback && FALSE == bta_sys_is_register(BTA_ID_SDP))
+    {
+        memset(&bta_sdp_cb, 0, sizeof(tBTA_SDP_CB));
+
+        /* register with BTA system manager */
+        bta_sys_register(BTA_ID_SDP, &bta_sdp_reg);
+
+        if (p_cback) {
+            tBTA_SDP_API_ENABLE *p_buf =
+                (tBTA_SDP_API_ENABLE *)osi_malloc(sizeof(tBTA_SDP_API_ENABLE));
+            p_buf->hdr.event = BTA_SDP_API_ENABLE_EVT;
+            p_buf->p_cback = p_cback;
+            bta_sys_sendmsg(p_buf);
+            status = BTA_SDP_SUCCESS;
+        }
+    }
+    return status;
+}
+
+/*******************************************************************************
+**
+** Function         BTA_SdpSearch
+**
+** Description      This function performs service discovery for a specific service
+**                  on given peer device. When the operation is completed
+**                  the tBTA_SDP_DM_CBACK callback function will be  called with
+**                  a BTA_SDP_SEARCH_COMPLETE_EVT.
+**
+** Returns          BTA_SDP_SUCCESS, if the request is being processed.
+**                  BTA_SDP_FAILURE, otherwise.
+**
+*******************************************************************************/
+tBTA_SDP_STATUS BTA_SdpSearch(BD_ADDR bd_addr, tSDP_UUID *uuid)
+{
+    tBTA_SDP_API_SEARCH *p_msg =
+        (tBTA_SDP_API_SEARCH *)osi_malloc(sizeof(tBTA_SDP_API_SEARCH));
+
+    APPL_TRACE_API("%s", __func__);
+
+    p_msg->hdr.event = BTA_SDP_API_SEARCH_EVT;
+    bdcpy(p_msg->bd_addr, bd_addr);
+    // p_msg->uuid = uuid;
+    memcpy(&(p_msg->uuid), uuid, sizeof(tSDP_UUID));
+
+    bta_sys_sendmsg(p_msg);
+
+    return BTA_SDP_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         BTA_SdpCreateRecordByUser
+**
+** Description      This function is used to request a callback to create a SDP
+**                  record. The registered callback will be called with event
+**                  BTA_SDP_CREATE_RECORD_USER_EVT.
+**
+** Returns          BTA_SDP_SUCCESS, if the request is being processed.
+**                  BTA_SDP_FAILURE, otherwise.
+**
+*******************************************************************************/
+tBTA_SDP_STATUS BTA_SdpCreateRecordByUser(void* user_data)
+{
+    tBTA_SDP_API_RECORD_USER *p_msg =
+        (tBTA_SDP_API_RECORD_USER *)osi_malloc(sizeof(tBTA_SDP_API_RECORD_USER));
+
+    APPL_TRACE_API("%s", __func__);
+
+    p_msg->hdr.event = BTA_SDP_API_CREATE_RECORD_USER_EVT;
+    p_msg->user_data = user_data;
+
+    bta_sys_sendmsg(p_msg);
+
+    return BTA_SDP_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         BTA_SdpRemoveRecordByUser
+**
+** Description      This function is used to request a callback to remove a SDP
+**                  record. The registered callback will be called with event
+**                  BTA_SDP_REMOVE_RECORD_USER_EVT.
+**
+** Returns          BTA_SDP_SUCCESS, if the request is being processed.
+**                  BTA_SDP_FAILURE, otherwise.
+**
+*******************************************************************************/
+tBTA_SDP_STATUS BTA_SdpRemoveRecordByUser(void* user_data)
+{
+    tBTA_SDP_API_RECORD_USER *p_msg =
+        (tBTA_SDP_API_RECORD_USER *)osi_malloc(sizeof(tBTA_SDP_API_RECORD_USER));
+
+    APPL_TRACE_API("%s", __func__);
+
+    p_msg->hdr.event = BTA_SDP_API_REMOVE_RECORD_USER_EVT;
+    p_msg->user_data = user_data;
+
+    bta_sys_sendmsg(p_msg);
+
+    return BTA_SDP_SUCCESS;
+}
diff --git a/rtkbt/code/bt/bta/sdp/bta_sdp_cfg.c b/rtkbt/code/bt/bta/sdp/bta_sdp_cfg.c
new file mode 100755
index 0000000..477318c
--- /dev/null
+++ b/rtkbt/code/bt/bta/sdp/bta_sdp_cfg.c
@@ -0,0 +1,40 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 The Android Open Source Project
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *  This file contains compile-time configurable constants for SDP Search
+ ******************************************************************************/
+
+#include "bt_common.h"
+#include "bta_api.h"
+#include "bta_sdp_api.h"
+
+#ifndef BTA_SDP_DB_SIZE
+#define BTA_SDP_DB_SIZE  4500
+#endif
+
+static UINT8 __attribute__ ((aligned(4))) bta_sdp_db_data[BTA_SDP_DB_SIZE];
+
+/* SDP configuration structure */
+const tBTA_SDP_CFG bta_sdp_cfg =
+{
+    BTA_SDP_DB_SIZE,
+    (tSDP_DISCOVERY_DB *)bta_sdp_db_data /* The data buffer to keep SDP database */
+};
+
+tBTA_SDP_CFG *p_bta_sdp_cfg = (tBTA_SDP_CFG *) &bta_sdp_cfg;
diff --git a/rtkbt/code/bt/bta/sdp/bta_sdp_int.h b/rtkbt/code/bt/bta/sdp/bta_sdp_int.h
new file mode 100755
index 0000000..4f3f6a5
--- /dev/null
+++ b/rtkbt/code/bt/bta/sdp/bta_sdp_int.h
@@ -0,0 +1,115 @@
+
+
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 The Android Open Source Project
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the private interface file for the BTA SDP I/F
+ *
+ ******************************************************************************/
+#ifndef BTA_SDP_INT_H
+#define BTA_SDP_INT_H
+
+#include "bta_sys.h"
+#include "bta_api.h"
+#include "bta_sdp_api.h"
+
+/*****************************************************************************
+**  Constants
+*****************************************************************************/
+
+enum
+{
+    /* these events are handled by the state machine */
+    BTA_SDP_API_ENABLE_EVT = BTA_SYS_EVT_START(BTA_ID_SDP),
+    BTA_SDP_API_SEARCH_EVT,
+    BTA_SDP_API_CREATE_RECORD_USER_EVT,
+    BTA_SDP_API_REMOVE_RECORD_USER_EVT,
+    BTA_SDP_MAX_INT_EVT
+};
+
+enum
+{
+    BTA_SDP_ACTIVE_NONE = 0,
+    BTA_SDP_ACTIVE_YES       /* waiting for SDP result */
+};
+
+
+
+/* data type for BTA_SDP_API_ENABLE_EVT */
+typedef struct
+{
+    BT_HDR             hdr;
+    tBTA_SDP_DM_CBACK  *p_cback;
+} tBTA_SDP_API_ENABLE;
+
+/* data type for BTA_SDP_API_SEARCH_EVT */
+typedef struct
+{
+    BT_HDR          hdr;
+    BD_ADDR         bd_addr;
+    tSDP_UUID       uuid;
+} tBTA_SDP_API_SEARCH;
+
+/* data type for BTA_SDP_API_SEARCH_EVT */
+typedef struct
+{
+    BT_HDR          hdr;
+    void*           user_data;
+} tBTA_SDP_API_RECORD_USER;
+
+/* union of all data types */
+typedef union
+{
+    /* GKI event buffer header */
+    BT_HDR                                 hdr;
+    tBTA_SDP_API_ENABLE                    enable;
+    tBTA_SDP_API_SEARCH                    get_search;
+    tBTA_SDP_API_RECORD_USER               record;
+} tBTA_SDP_MSG;
+
+/* SDP control block */
+typedef struct
+{
+    UINT8              sdp_active;  /* see BTA_SDP_SDP_ACT_* */
+    BD_ADDR            remote_addr;
+    tBTA_SDP_DM_CBACK  *p_dm_cback;
+} tBTA_SDP_CB;
+
+
+/* SDP control block */
+#if BTA_DYNAMIC_MEMORY == FALSE
+extern tBTA_SDP_CB bta_sdp_cb;
+#else
+extern tBTA_SDP_CB *bta_sdp_cb_ptr;
+#define bta_sdp_cb (*bta_sdp_cb_ptr)
+#endif
+
+/* config struct */
+extern tBTA_SDP_CFG *p_bta_sdp_cfg;
+
+extern BOOLEAN bta_sdp_sm_execute(BT_HDR *p_msg);
+
+extern void bta_sdp_enable (tBTA_SDP_MSG *p_data);
+extern void bta_sdp_search (tBTA_SDP_MSG *p_data);
+extern void bta_sdp_create_record(tBTA_SDP_MSG *p_data);
+extern void bta_sdp_remove_record(tBTA_SDP_MSG *p_data);
+
+#endif /* BTA_SDP_INT_H */
diff --git a/rtkbt/code/bt/bta/sys/bta_sys.h b/rtkbt/code/bt/bta/sys/bta_sys.h
new file mode 100755
index 0000000..ec45bf0
--- /dev/null
+++ b/rtkbt/code/bt/bta/sys/bta_sys.h
@@ -0,0 +1,286 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the public interface file for the BTA system manager.
+ *
+ ******************************************************************************/
+#ifndef BTA_SYS_H
+#define BTA_SYS_H
+
+#include "bt_target.h"
+#include "osi/include/alarm.h"
+#include "bt_common.h"
+
+/*****************************************************************************
+**  Constants and data types
+*****************************************************************************/
+
+/* vendor specific event handler function type */
+typedef BOOLEAN (tBTA_SYS_VS_EVT_HDLR)(UINT16 evt, void *p);
+
+/* event handler function type */
+typedef BOOLEAN (tBTA_SYS_EVT_HDLR)(BT_HDR *p_msg);
+
+/* disable function type */
+typedef void (tBTA_SYS_DISABLE)(void);
+
+
+/* HW modules */
+enum
+{
+    BTA_SYS_HW_BLUETOOTH,
+    BTA_SYS_HW_RT,
+
+    BTA_SYS_MAX_HW_MODULES
+};
+
+typedef UINT16 tBTA_SYS_HW_MODULE;
+
+#ifndef BTA_DM_NUM_JV_ID
+#define BTA_DM_NUM_JV_ID    2
+#endif
+
+/* SW sub-systems */
+#define BTA_ID_SYS          0            /* system manager */
+/* BLUETOOTH PART - from 0 to BTA_ID_BLUETOOTH_MAX */
+#define BTA_ID_DM           1            /* device manager */
+#define BTA_ID_DM_SEARCH    2            /* device manager search */
+#define BTA_ID_DM_SEC       3            /* device manager security */
+#define BTA_ID_DG           4            /* data gateway */
+#define BTA_ID_AG           5            /* audio gateway */
+#define BTA_ID_OPC          6            /* object push client */
+#define BTA_ID_OPS          7            /* object push server */
+#define BTA_ID_FTS          8            /* file transfer server */
+#define BTA_ID_CT           9            /* cordless telephony terminal */
+#define BTA_ID_FTC          10           /* file transfer client */
+#define BTA_ID_SS           11           /* synchronization server */
+#define BTA_ID_PR           12           /* Printer client */
+#define BTA_ID_BIC          13           /* Basic Imaging Client */
+#define BTA_ID_PAN          14           /* Personal Area Networking */
+#define BTA_ID_BIS          15           /* Basic Imaging Server */
+#define BTA_ID_ACC          16           /* Advanced Camera Client */
+#define BTA_ID_SC           17           /* SIM Card Access server */
+#define BTA_ID_AV           18           /* Advanced audio/video */
+#define BTA_ID_AVK          19           /* Audio/video sink */
+#define BTA_ID_HD           20           /* HID Device */
+#define BTA_ID_CG           21           /* Cordless Gateway */
+#define BTA_ID_BP           22           /* Basic Printing Client */
+#define BTA_ID_HH           23           /* Human Interface Device Host */
+#define BTA_ID_PBS          24           /* Phone Book Access Server */
+#define BTA_ID_PBC          25           /* Phone Book Access Client */
+#define BTA_ID_JV           26           /* Java */
+#define BTA_ID_HS           27           /* Headset */
+#define BTA_ID_MSE          28           /* Message Server Equipment */
+#define BTA_ID_MCE          29           /* Message Client Equipment */
+#define BTA_ID_HL           30           /* Health Device Profile*/
+#define BTA_ID_GATTC        31           /* GATT Client */
+#define BTA_ID_GATTS        32           /* GATT Client */
+#define BTA_ID_SDP          33           /* SDP Client */
+#define BTA_ID_BLUETOOTH_MAX   34        /* last BT profile */
+
+/* GENERIC */
+#define BTA_ID_PRM          38
+#define BTA_ID_SYSTEM       39           /* platform-specific */
+#define BTA_ID_SWRAP        40           /* Insight script wrapper */
+#define BTA_ID_MIP          41           /* Multicase Individual Polling */
+#define BTA_ID_RT           42           /* Audio Routing module: This module is always on. */
+
+
+/* JV */
+#define BTA_ID_JV1          44           /* JV1 */
+#define BTA_ID_JV2          45           /* JV2 */
+
+#define BTA_ID_MAX          (44 + BTA_DM_NUM_JV_ID)
+
+typedef UINT8 tBTA_SYS_ID;
+
+
+#define BTA_SYS_CONN_OPEN           0x00
+#define BTA_SYS_CONN_CLOSE          0x01
+#define BTA_SYS_APP_OPEN            0x02
+#define BTA_SYS_APP_CLOSE           0x03
+#define BTA_SYS_SCO_OPEN            0x04
+#define BTA_SYS_SCO_CLOSE           0x05
+#define BTA_SYS_CONN_IDLE           0x06
+#define BTA_SYS_CONN_BUSY           0x07
+
+/* for link policy */
+#define BTA_SYS_PLCY_SET            0x10 /* set the link policy to the given addr */
+#define BTA_SYS_PLCY_CLR            0x11 /* clear the link policy to the given addr */
+#define BTA_SYS_PLCY_DEF_SET        0x12 /* set the default link policy */
+#define BTA_SYS_PLCY_DEF_CLR        0x13 /* clear the default link policy */
+#define BTA_SYS_ROLE_CHANGE         0x14 /* role change */
+
+typedef UINT8 tBTA_SYS_CONN_STATUS;
+
+/* Bitmask of sys features */
+#define BTA_SYS_FEAT_PCM2           0x0001
+#define BTA_SYS_FEAT_PCM2_MASTER    0x0002
+
+/* tBTA_PREF_ROLES */
+typedef UINT8 tBTA_SYS_PREF_ROLES;
+
+/* conn callback for role / low power manager*/
+typedef void (tBTA_SYS_CONN_CBACK)(tBTA_SYS_CONN_STATUS status,UINT8 id, UINT8 app_id, BD_ADDR peer_addr);
+
+/* conn callback for role / low power manager*/
+typedef void (tBTA_SYS_SSR_CFG_CBACK)(UINT8 id, UINT8 app_id, UINT16 latency, UINT16 tout);
+
+#if (BTA_EIR_CANNED_UUID_LIST != TRUE)
+/* eir callback for adding/removeing UUID */
+typedef void (tBTA_SYS_EIR_CBACK)(UINT16 uuid16, BOOLEAN adding);
+#endif
+
+/* registration structure */
+typedef struct
+{
+    tBTA_SYS_EVT_HDLR   *evt_hdlr;
+    tBTA_SYS_DISABLE    *disable;
+} tBTA_SYS_REG;
+
+/* data type to send events to BTA SYS HW manager */
+typedef struct
+{
+    BT_HDR                hdr;
+    tBTA_SYS_HW_MODULE   hw_module;
+} tBTA_SYS_HW_MSG;
+
+/*****************************************************************************
+**  Global data
+*****************************************************************************/
+
+/* trace level */
+extern UINT8 appl_trace_level;
+
+/*****************************************************************************
+**  Macros
+*****************************************************************************/
+
+/* Calculate start of event enumeration; id is top 8 bits of event */
+#define BTA_SYS_EVT_START(id)       ((id) << 8)
+
+/*****************************************************************************
+**  events for BTA SYS HW manager
+*****************************************************************************/
+
+/* events sent to SYS HW manager - must be kept synchronized with tables in bta_sys_main.c */
+enum
+{
+    /* device manager local device API events */
+    BTA_SYS_API_ENABLE_EVT = BTA_SYS_EVT_START(BTA_ID_SYS),
+    BTA_SYS_EVT_ENABLED_EVT,
+    BTA_SYS_EVT_STACK_ENABLED_EVT,
+    BTA_SYS_API_DISABLE_EVT,
+    BTA_SYS_EVT_DISABLED_EVT,
+    BTA_SYS_ERROR_EVT,
+
+    BTA_SYS_MAX_EVT
+};
+
+
+
+/* SYS HW status events - returned by SYS HW manager to other modules. */
+enum
+{
+    BTA_SYS_HW_OFF_EVT,
+    BTA_SYS_HW_ON_EVT,
+    BTA_SYS_HW_STARTING_EVT,
+    BTA_SYS_HW_STOPPING_EVT,
+    BTA_SYS_HW_ERROR_EVT
+
+};
+typedef UINT8 tBTA_SYS_HW_EVT;
+
+/* HW enable callback type */
+typedef void (tBTA_SYS_HW_CBACK)(tBTA_SYS_HW_EVT status);
+
+/*****************************************************************************
+**  Function declarations
+*****************************************************************************/
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern void bta_sys_init(void);
+extern void bta_sys_free(void);
+extern void bta_sys_event(BT_HDR *p_msg);
+extern void bta_sys_set_trace_level(UINT8 level);
+extern void bta_sys_register(UINT8 id, const tBTA_SYS_REG *p_reg);
+extern void bta_sys_deregister(UINT8 id);
+extern BOOLEAN bta_sys_is_register(UINT8 id);
+extern UINT16 bta_sys_get_sys_features(void);
+extern void bta_sys_sendmsg(void *p_msg);
+extern void bta_sys_start_timer(alarm_t *alarm, period_ms_t interval,
+                                uint16_t event, uint16_t layer_specific);
+extern void bta_sys_disable(tBTA_SYS_HW_MODULE module);
+
+extern void bta_sys_hw_register( tBTA_SYS_HW_MODULE module, tBTA_SYS_HW_CBACK *cback);
+extern void bta_sys_hw_unregister( tBTA_SYS_HW_MODULE module );
+
+
+extern void bta_sys_rm_register(tBTA_SYS_CONN_CBACK * p_cback);
+extern void bta_sys_pm_register(tBTA_SYS_CONN_CBACK * p_cback);
+
+extern void bta_sys_policy_register(tBTA_SYS_CONN_CBACK * p_cback);
+extern void bta_sys_sco_register(tBTA_SYS_CONN_CBACK * p_cback);
+
+
+extern void bta_sys_conn_open(UINT8 id, UINT8 app_id, BD_ADDR peer_addr);
+extern void bta_sys_conn_close(UINT8 id, UINT8 app_id, BD_ADDR peer_addr);
+extern void bta_sys_app_open(UINT8 id, UINT8 app_id, BD_ADDR peer_addr);
+extern void bta_sys_app_close(UINT8 id, UINT8 app_id, BD_ADDR peer_addr);
+extern void bta_sys_sco_open(UINT8 id, UINT8 app_id, BD_ADDR peer_addr);
+extern void bta_sys_sco_close(UINT8 id, UINT8 app_id, BD_ADDR peer_addr);
+extern void bta_sys_sco_use(UINT8 id, UINT8 app_id, BD_ADDR peer_addr);
+extern void bta_sys_sco_unuse(UINT8 id, UINT8 app_id, BD_ADDR peer_addr);
+extern void bta_sys_idle(UINT8 id, UINT8 app_id, BD_ADDR peer_addr);
+extern void bta_sys_busy(UINT8 id, UINT8 app_id, BD_ADDR peer_addr);
+
+#if (BTM_SSR_INCLUDED == TRUE)
+extern void bta_sys_ssr_cfg_register(tBTA_SYS_SSR_CFG_CBACK * p_cback);
+extern void bta_sys_chg_ssr_config (UINT8 id, UINT8 app_id, UINT16 max_latency, UINT16 min_tout);
+#endif
+
+extern void bta_sys_role_chg_register(tBTA_SYS_CONN_CBACK * p_cback);
+extern void bta_sys_notify_role_chg(BD_ADDR_PTR p_bda, UINT8 new_role, UINT8 hci_status);
+extern void bta_sys_collision_register(UINT8 bta_id, tBTA_SYS_CONN_CBACK *p_cback);
+extern void bta_sys_notify_collision (BD_ADDR_PTR p_bda);
+
+#if (BTA_EIR_CANNED_UUID_LIST != TRUE)
+extern void bta_sys_eir_register(tBTA_SYS_EIR_CBACK * p_cback);
+extern void bta_sys_add_uuid(UINT16 uuid16);
+extern void bta_sys_remove_uuid(UINT16 uuid16);
+#else
+#define bta_sys_eir_register(ut)
+#define bta_sys_add_uuid(ut)
+#define bta_sys_remove_uuid(ut)
+#endif
+
+extern void bta_sys_set_policy (UINT8 id, UINT8 policy, BD_ADDR peer_addr);
+extern void bta_sys_clear_policy (UINT8 id, UINT8 policy, BD_ADDR peer_addr);
+extern void bta_sys_set_default_policy (UINT8 id, UINT8 policy);
+extern void bta_sys_clear_default_policy (UINT8 id, UINT8 policy);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* BTA_SYS_H */
diff --git a/rtkbt/code/bt/bta/sys/bta_sys_conn.c b/rtkbt/code/bt/bta/sys/bta_sys_conn.c
new file mode 100755
index 0000000..ec2b177
--- /dev/null
+++ b/rtkbt/code/bt/bta/sys/bta_sys_conn.c
@@ -0,0 +1,580 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  Routes connection status callbacks from various sub systems to DM
+ *
+ ******************************************************************************/
+
+#include <stddef.h>
+#include "bta_api.h"
+#include "bta_sys.h"
+#include "bta_sys_int.h"
+#include "bt_common.h"
+#include "utl.h"
+
+/*******************************************************************************
+**
+** Function         bta_sys_rm_register
+**
+** Description      Called by BTA DM to register role management callbacks
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_sys_rm_register(tBTA_SYS_CONN_CBACK * p_cback)
+{
+    bta_sys_cb.prm_cb = p_cback;
+}
+
+
+/*******************************************************************************
+**
+** Function         bta_sys_policy_register
+**
+** Description      Called by BTA DM to register link policy change callbacks
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_sys_policy_register(tBTA_SYS_CONN_CBACK * p_cback)
+{
+    bta_sys_cb.p_policy_cb = p_cback;
+}
+
+/*******************************************************************************
+**
+** Function         bta_sys_role_chg_register
+**
+** Description      Called by BTA AV to register role change callbacks
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_sys_role_chg_register(tBTA_SYS_CONN_CBACK * p_cback)
+{
+    bta_sys_cb.p_role_cb = p_cback;
+}
+/*******************************************************************************
+**
+** Function         bta_sys_ssr_cfg_register
+**
+** Description      Called by BTA DM to register SSR configuration callback
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+#if (BTM_SSR_INCLUDED == TRUE)
+void bta_sys_ssr_cfg_register(tBTA_SYS_SSR_CFG_CBACK * p_cback)
+{
+    bta_sys_cb.p_ssr_cb = p_cback;
+}
+#endif
+/*******************************************************************************
+**
+** Function         bta_sys_role_chg_register
+**
+** Description      Called by BTA AV to register role change callbacks
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_sys_notify_role_chg(BD_ADDR_PTR p_bda, UINT8 new_role, UINT8 hci_status)
+{
+    if (bta_sys_cb.p_role_cb)
+    {
+        bta_sys_cb.p_role_cb(BTA_SYS_ROLE_CHANGE, new_role, hci_status, p_bda);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_sys_collision_register
+**
+** Description      Called by any BTA module to register for collision event.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_sys_collision_register(UINT8 bta_id, tBTA_SYS_CONN_CBACK *p_cback)
+{
+    UINT8 index;
+
+    for (index = 0; index < MAX_COLLISION_REG; index++)
+    {
+        if ((bta_sys_cb.colli_reg.id[index] == bta_id) ||
+            (bta_sys_cb.colli_reg.id[index] == 0))
+        {
+            bta_sys_cb.colli_reg.id[index] = bta_id;
+            bta_sys_cb.colli_reg.p_coll_cback[index] = p_cback;
+            return;
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_sys_notify_collision
+**
+** Description      Called by BTA DM to notify collision event.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_sys_notify_collision (BD_ADDR_PTR p_bda)
+{
+    UINT8 index;
+
+    for (index = 0; index < MAX_COLLISION_REG; index++)
+    {
+        if ((bta_sys_cb.colli_reg.id[index] != 0) &&
+            (bta_sys_cb.colli_reg.p_coll_cback[index] != NULL))
+        {
+            bta_sys_cb.colli_reg.p_coll_cback[index] (0, BTA_ID_SYS, 0, p_bda);
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_sys_sco_register
+**
+** Description      Called by BTA AV to register sco connection change callbacks
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_sys_sco_register(tBTA_SYS_CONN_CBACK * p_cback)
+{
+    bta_sys_cb.p_sco_cb = p_cback;
+}
+
+/*******************************************************************************
+**
+** Function         bta_sys_pm_register
+**
+** Description      Called by BTA DM to register power management callbacks
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_sys_pm_register(tBTA_SYS_CONN_CBACK * p_cback)
+{
+    bta_sys_cb.ppm_cb = p_cback;
+}
+
+/*******************************************************************************
+**
+** Function         bta_sys_conn_open
+**
+** Description      Called by BTA subsystems when a connection is made to
+**                  the service
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_sys_conn_open(UINT8 id, UINT8 app_id, BD_ADDR peer_addr)
+{
+    if(bta_sys_cb.prm_cb)
+    {
+
+        bta_sys_cb.prm_cb(BTA_SYS_CONN_OPEN, id, app_id, peer_addr);
+
+    }
+
+    if(bta_sys_cb.ppm_cb)
+    {
+
+        bta_sys_cb.ppm_cb(BTA_SYS_CONN_OPEN, id, app_id, peer_addr);
+
+    }
+}
+
+
+
+/*******************************************************************************
+**
+** Function         bta_sys_conn_close
+**
+** Description      Called by BTA subsystems when a connection to the service
+**                  is closed
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_sys_conn_close(UINT8 id, UINT8 app_id, BD_ADDR peer_addr)
+{
+    if(bta_sys_cb.prm_cb)
+    {
+
+        bta_sys_cb.prm_cb(BTA_SYS_CONN_CLOSE, id, app_id, peer_addr);
+
+    }
+
+    if(bta_sys_cb.ppm_cb)
+    {
+
+        bta_sys_cb.ppm_cb(BTA_SYS_CONN_CLOSE, id, app_id, peer_addr);
+
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         bta_sys_app_open
+**
+** Description      Called by BTA subsystems when application initiates connection
+**                  to a peer device
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_sys_app_open(UINT8 id, UINT8 app_id, BD_ADDR peer_addr)
+{
+    if(bta_sys_cb.ppm_cb)
+    {
+        bta_sys_cb.ppm_cb(BTA_SYS_APP_OPEN, id, app_id, peer_addr);
+    }
+}
+
+
+
+/*******************************************************************************
+**
+** Function         bta_sys_app_close
+**
+** Description      Called by BTA subsystems when application initiates close
+**                  of connection to peer device
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_sys_app_close(UINT8 id, UINT8 app_id, BD_ADDR peer_addr)
+{
+    if(bta_sys_cb.ppm_cb)
+    {
+        bta_sys_cb.ppm_cb(BTA_SYS_APP_CLOSE, id, app_id, peer_addr);
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         bta_sys_sco_open
+**
+** Description      Called by BTA subsystems when sco connection for that service
+**                  is open
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_sys_sco_open(UINT8 id, UINT8 app_id, BD_ADDR peer_addr)
+{
+    /* AG triggers p_sco_cb by bta_sys_sco_use. */
+    if((id != BTA_ID_AG) && (bta_sys_cb.p_sco_cb))
+    {
+        /* without querying BTM_GetNumScoLinks() */
+        bta_sys_cb.p_sco_cb(BTA_SYS_SCO_OPEN, 1, app_id, peer_addr);
+    }
+
+    if(bta_sys_cb.ppm_cb)
+    {
+        bta_sys_cb.ppm_cb(BTA_SYS_SCO_OPEN, id, app_id, peer_addr);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_sys_sco_close
+**
+** Description      Called by BTA subsystems when sco connection for that service
+**                  is closed
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_sys_sco_close(UINT8 id, UINT8 app_id, BD_ADDR peer_addr)
+{
+    UINT8 num_sco_links;
+
+    if((id != BTA_ID_AG) && (bta_sys_cb.p_sco_cb))
+    {
+        num_sco_links = BTM_GetNumScoLinks();
+        bta_sys_cb.p_sco_cb(BTA_SYS_SCO_CLOSE, num_sco_links, app_id, peer_addr);
+    }
+
+    if(bta_sys_cb.ppm_cb)
+    {
+        bta_sys_cb.ppm_cb(BTA_SYS_SCO_CLOSE, id, app_id, peer_addr);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_sys_sco_use
+**
+** Description      Called by BTA subsystems when that service needs to use sco.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_sys_sco_use(UINT8 id, UINT8 app_id, BD_ADDR peer_addr)
+{
+    UNUSED(id);
+
+    /* AV streaming need to be suspended before SCO is connected. */
+    if(bta_sys_cb.p_sco_cb)
+    {
+        /* without querying BTM_GetNumScoLinks() */
+        bta_sys_cb.p_sco_cb(BTA_SYS_SCO_OPEN, 1, app_id, peer_addr);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_sys_sco_unuse
+**
+** Description      Called by BTA subsystems when sco connection for that service
+**                  is no longer needed.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_sys_sco_unuse(UINT8 id, UINT8 app_id, BD_ADDR peer_addr)
+{
+    UINT8 num_sco_links;
+    UNUSED(id);
+
+    if((bta_sys_cb.p_sco_cb))
+    {
+        num_sco_links = BTM_GetNumScoLinks();
+        bta_sys_cb.p_sco_cb(BTA_SYS_SCO_CLOSE, num_sco_links, app_id, peer_addr);
+    }
+}
+/*******************************************************************************
+**
+** Function         bta_sys_chg_ssr_config
+**
+** Description      Called by BTA subsystems to indicate that the given app SSR setting
+**                  need to be changed.
+**
+** Returns          void
+**
+*******************************************************************************/
+#if (BTM_SSR_INCLUDED == TRUE)
+void bta_sys_chg_ssr_config (UINT8 id, UINT8 app_id, UINT16 max_latency, UINT16 min_tout)
+{
+    if(bta_sys_cb.p_ssr_cb)
+    {
+        bta_sys_cb.p_ssr_cb(id, app_id, max_latency, min_tout);
+    }
+}
+#endif
+/*******************************************************************************
+**
+** Function         bta_sys_set_policy
+**
+** Description      Called by BTA subsystems to indicate that the given link
+**                  policy to peer device should be set
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_sys_set_policy (UINT8 id, UINT8 policy, BD_ADDR peer_addr)
+{
+    if(bta_sys_cb.p_policy_cb)
+    {
+        bta_sys_cb.p_policy_cb(BTA_SYS_PLCY_SET, id, policy, peer_addr);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_sys_clear_policy
+**
+** Description      Called by BTA subsystems to indicate that the given link
+**                  policy to peer device should be clear
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_sys_clear_policy (UINT8 id, UINT8 policy, BD_ADDR peer_addr)
+{
+    if(bta_sys_cb.p_policy_cb)
+    {
+        bta_sys_cb.p_policy_cb(BTA_SYS_PLCY_CLR, id, policy, peer_addr);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_sys_set_default_policy
+**
+** Description      Called by BTA subsystems to indicate that the given default
+**                  link policy should be set
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_sys_set_default_policy (UINT8 id, UINT8 policy)
+{
+    if(bta_sys_cb.p_policy_cb)
+    {
+        bta_sys_cb.p_policy_cb(BTA_SYS_PLCY_DEF_SET, id, policy, NULL);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_sys_clear_default_policy
+**
+** Description      Called by BTA subsystems to indicate that the given default
+**                  link policy should be clear
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_sys_clear_default_policy (UINT8 id, UINT8 policy)
+{
+    if(bta_sys_cb.p_policy_cb)
+    {
+        bta_sys_cb.p_policy_cb(BTA_SYS_PLCY_DEF_CLR, id, policy, NULL);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_sys_idle
+**
+** Description      Called by BTA subsystems to indicate that the connection to
+**                  peer device is idle
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_sys_idle(UINT8 id, UINT8 app_id, BD_ADDR peer_addr)
+{
+
+    if(bta_sys_cb.prm_cb)
+    {
+
+        bta_sys_cb.prm_cb(BTA_SYS_CONN_IDLE, id, app_id, peer_addr);
+
+    }
+
+    if(bta_sys_cb.ppm_cb)
+    {
+
+        bta_sys_cb.ppm_cb(BTA_SYS_CONN_IDLE, id, app_id, peer_addr);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_sys_busy
+**
+** Description      Called by BTA subsystems to indicate that the connection to
+**                  peer device is busy
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_sys_busy(UINT8 id, UINT8 app_id, BD_ADDR peer_addr)
+{
+    if(bta_sys_cb.prm_cb)
+    {
+
+        bta_sys_cb.prm_cb(BTA_SYS_CONN_BUSY, id, app_id, peer_addr);
+
+    }
+
+    if(bta_sys_cb.ppm_cb)
+    {
+
+        bta_sys_cb.ppm_cb(BTA_SYS_CONN_BUSY, id, app_id, peer_addr);
+
+    }
+}
+
+#if (BTA_EIR_CANNED_UUID_LIST != TRUE)
+/*******************************************************************************
+**
+** Function         bta_sys_eir_register
+**
+** Description      Called by BTA DM to register EIR utility function that can be
+**                  used by the other BTA modules to add/remove UUID.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_sys_eir_register(tBTA_SYS_EIR_CBACK * p_cback)
+{
+    bta_sys_cb.eir_cb = p_cback;
+}
+
+/*******************************************************************************
+**
+** Function         bta_sys_add_uuid
+**
+** Description      Called by BTA subsystems to indicate to DM that new service
+**                  class UUID is added.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_sys_add_uuid(UINT16 uuid16)
+{
+    if(bta_sys_cb.eir_cb)
+    {
+        bta_sys_cb.eir_cb(uuid16, TRUE );
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_sys_remove_uuid
+**
+** Description      Called by BTA subsystems to indicate to DM that the service
+**                  class UUID is removed.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_sys_remove_uuid(UINT16 uuid16)
+{
+    if(bta_sys_cb.eir_cb)
+    {
+        bta_sys_cb.eir_cb(uuid16, FALSE);
+    }
+}
+#endif
diff --git a/rtkbt/code/bt/bta/sys/bta_sys_int.h b/rtkbt/code/bt/bta/sys/bta_sys_int.h
new file mode 100755
index 0000000..e9c1929
--- /dev/null
+++ b/rtkbt/code/bt/bta/sys/bta_sys_int.h
@@ -0,0 +1,104 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the private interface file for the BTA system manager.
+ *
+ ******************************************************************************/
+#ifndef BTA_SYS_INT_H
+#define BTA_SYS_INT_H
+
+/*****************************************************************************
+**  Constants and data types
+*****************************************************************************/
+
+/*****************************************************************************
+**  state table
+*****************************************************************************/
+
+/* SYS HW state */
+enum
+{
+    BTA_SYS_HW_OFF,
+    BTA_SYS_HW_STARTING,
+    BTA_SYS_HW_ON,
+    BTA_SYS_HW_STOPPING
+};
+typedef UINT8 tBTA_SYS_HW_STATE;
+
+/* Collision callback */
+#define MAX_COLLISION_REG   5
+
+typedef struct
+{
+    UINT8                   id[MAX_COLLISION_REG];
+    tBTA_SYS_CONN_CBACK     *p_coll_cback[MAX_COLLISION_REG];
+} tBTA_SYS_COLLISION;
+
+/* system manager control block */
+typedef struct
+{
+    tBTA_SYS_REG            *reg[BTA_ID_MAX];       /* registration structures */
+    BOOLEAN                 is_reg[BTA_ID_MAX];     /* registration structures */
+    tBTA_SYS_HW_STATE state;
+    tBTA_SYS_HW_CBACK *sys_hw_cback[BTA_SYS_MAX_HW_MODULES];    /* enable callback for each HW modules */
+    UINT32                  sys_hw_module_active;   /* bitmask of all active modules */
+    UINT16                  sys_features;           /* Bitmask of sys features */
+
+    tBTA_SYS_CONN_CBACK     *prm_cb;                 /* role management callback registered by DM */
+    tBTA_SYS_CONN_CBACK     *ppm_cb;                 /* low power management callback registered by DM */
+    tBTA_SYS_CONN_CBACK     *p_policy_cb;            /* link policy change callback registered by DM */
+    tBTA_SYS_CONN_CBACK     *p_sco_cb;               /* SCO connection change callback registered by AV */
+    tBTA_SYS_CONN_CBACK     *p_role_cb;              /* role change callback registered by AV */
+    tBTA_SYS_COLLISION      colli_reg;               /* collision handling module */
+#if (BTA_EIR_CANNED_UUID_LIST != TRUE)
+    tBTA_SYS_EIR_CBACK      *eir_cb;                /* add/remove UUID into EIR */
+#endif
+#if (BTM_SSR_INCLUDED == TRUE)
+    tBTA_SYS_SSR_CFG_CBACK      *p_ssr_cb;
+#endif
+    /* VS event handler */
+    tBTA_SYS_VS_EVT_HDLR   *p_vs_evt_hdlr;
+
+} tBTA_SYS_CB;
+
+/*****************************************************************************
+**  Global variables
+*****************************************************************************/
+
+/* system manager control block */
+#if BTA_DYNAMIC_MEMORY == FALSE
+extern tBTA_SYS_CB bta_sys_cb;
+#else
+extern tBTA_SYS_CB *bta_sys_cb_ptr;
+#define bta_sys_cb (*bta_sys_cb_ptr)
+#endif
+
+/* functions used for BTA SYS HW state machine */
+void bta_sys_hw_btm_cback( tBTM_DEV_STATUS status );
+void bta_sys_hw_error(tBTA_SYS_HW_MSG *p_sys_hw_msg);
+void bta_sys_hw_api_enable( tBTA_SYS_HW_MSG *p_sys_hw_msg );
+void bta_sys_hw_api_disable(tBTA_SYS_HW_MSG *p_sys_hw_msg);
+void bta_sys_hw_evt_enabled(tBTA_SYS_HW_MSG *p_sys_hw_msg);
+void bta_sys_hw_evt_disabled(tBTA_SYS_HW_MSG *p_sys_hw_msg);
+void bta_sys_hw_evt_stack_enabled(tBTA_SYS_HW_MSG *p_sys_hw_msg);
+
+BOOLEAN bta_sys_sm_execute(BT_HDR *p_msg);
+
+#endif /* BTA_SYS_INT_H */
diff --git a/rtkbt/code/bt/bta/sys/bta_sys_main.c b/rtkbt/code/bt/bta/sys/bta_sys_main.c
new file mode 100755
index 0000000..af32cc9
--- /dev/null
+++ b/rtkbt/code/bt/bta/sys/bta_sys_main.c
@@ -0,0 +1,667 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the main implementation file for the BTA system manager.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_bta_sys_main"
+
+#include <assert.h>
+#include <pthread.h>
+#include <string.h>
+
+#include "bta_api.h"
+#include "bta_sys.h"
+#include "bta_sys_int.h"
+#include "btm_api.h"
+#include "bt_common.h"
+#include "osi/include/alarm.h"
+#include "osi/include/fixed_queue.h"
+#include "osi/include/hash_functions.h"
+#include "osi/include/hash_map.h"
+#include "osi/include/log.h"
+#include "osi/include/osi.h"
+#include "osi/include/thread.h"
+#include "utl.h"
+
+#if( defined BTA_AR_INCLUDED ) && (BTA_AR_INCLUDED == TRUE)
+#include "bta_ar_api.h"
+#endif
+
+/* system manager control block definition */
+#if BTA_DYNAMIC_MEMORY == FALSE
+tBTA_SYS_CB bta_sys_cb;
+#endif
+
+fixed_queue_t *btu_bta_alarm_queue;
+extern thread_t *bt_workqueue_thread;
+
+/* trace level */
+/* TODO Hard-coded trace levels -  Needs to be configurable */
+UINT8 appl_trace_level = BT_TRACE_LEVEL_WARNING; //APPL_INITIAL_TRACE_LEVEL;
+UINT8 btif_trace_level = BT_TRACE_LEVEL_WARNING;
+
+// Communication queue between btu_task and bta.
+extern fixed_queue_t *btu_bta_msg_queue;
+
+static const tBTA_SYS_REG bta_sys_hw_reg =
+{
+    bta_sys_sm_execute,
+    NULL
+};
+
+
+/* type for action functions */
+typedef void (*tBTA_SYS_ACTION)(tBTA_SYS_HW_MSG *p_data);
+
+/* action function list */
+const tBTA_SYS_ACTION bta_sys_action[] =
+{
+    /* device manager local device API events - cf bta_sys.h for events */
+    bta_sys_hw_api_enable,             /* 0  BTA_SYS_HW_API_ENABLE_EVT    */
+    bta_sys_hw_evt_enabled,           /* 1  BTA_SYS_HW_EVT_ENABLED_EVT */
+    bta_sys_hw_evt_stack_enabled,       /* 2  BTA_SYS_HW_EVT_STACK_ENABLED_EVT */
+    bta_sys_hw_api_disable,             /* 3  BTA_SYS_HW_API_DISABLE_EVT     */
+    bta_sys_hw_evt_disabled,           /* 4  BTA_SYS_HW_EVT_DISABLED_EVT  */
+    bta_sys_hw_error                        /* 5   BTA_SYS_HW_ERROR_EVT  */
+};
+
+/* state machine action enumeration list */
+enum
+{
+    /* device manager local device API events */
+    BTA_SYS_HW_API_ENABLE,
+    BTA_SYS_HW_EVT_ENABLED,
+    BTA_SYS_HW_EVT_STACK_ENABLED,
+    BTA_SYS_HW_API_DISABLE,
+    BTA_SYS_HW_EVT_DISABLED,
+    BTA_SYS_HW_ERROR
+};
+
+#define BTA_SYS_NUM_ACTIONS  (BTA_SYS_MAX_EVT & 0x00ff)
+#define BTA_SYS_IGNORE       BTA_SYS_NUM_ACTIONS
+
+/* state table information */
+#define BTA_SYS_ACTIONS              2       /* number of actions */
+#define BTA_SYS_NEXT_STATE           2       /* position of next state */
+#define BTA_SYS_NUM_COLS             3       /* number of columns in state tables */
+
+
+/* state table for OFF state */
+const UINT8 bta_sys_hw_off[][BTA_SYS_NUM_COLS] =
+{
+/* Event                    Action 1               Action 2             Next State */
+/* API_ENABLE    */  {BTA_SYS_HW_API_ENABLE,    BTA_SYS_IGNORE,     BTA_SYS_HW_STARTING},
+/* EVT_ENABLED   */  {BTA_SYS_IGNORE,           BTA_SYS_IGNORE,     BTA_SYS_HW_STARTING},
+/* STACK_ENABLED */  {BTA_SYS_IGNORE,           BTA_SYS_IGNORE,     BTA_SYS_HW_ON},
+/* API_DISABLE   */  {BTA_SYS_HW_EVT_DISABLED,  BTA_SYS_IGNORE,     BTA_SYS_HW_OFF},
+/* EVT_DISABLED  */  {BTA_SYS_IGNORE,           BTA_SYS_IGNORE,     BTA_SYS_HW_OFF},
+/* EVT_ERROR     */  {BTA_SYS_IGNORE,           BTA_SYS_IGNORE,     BTA_SYS_HW_OFF}
+};
+
+const UINT8 bta_sys_hw_starting[][BTA_SYS_NUM_COLS] =
+{
+/* Event                    Action 1                   Action 2               Next State */
+/* API_ENABLE    */  {BTA_SYS_IGNORE,               BTA_SYS_IGNORE,         BTA_SYS_HW_STARTING}, /* wait for completion event */
+/* EVT_ENABLED   */  {BTA_SYS_HW_EVT_ENABLED,       BTA_SYS_IGNORE,         BTA_SYS_HW_STARTING},
+/* STACK_ENABLED */  {BTA_SYS_HW_EVT_STACK_ENABLED, BTA_SYS_IGNORE,         BTA_SYS_HW_ON},
+/* API_DISABLE   */  {BTA_SYS_IGNORE,               BTA_SYS_IGNORE,         BTA_SYS_HW_STOPPING}, /* successive disable/enable: change state wait for completion to disable */
+/* EVT_DISABLED  */  {BTA_SYS_HW_EVT_DISABLED,      BTA_SYS_HW_API_ENABLE,  BTA_SYS_HW_STARTING}, /* successive enable/disable: notify, then restart HW */
+/* EVT_ERROR */      {BTA_SYS_HW_ERROR,             BTA_SYS_IGNORE,         BTA_SYS_HW_ON}
+};
+
+const UINT8 bta_sys_hw_on[][BTA_SYS_NUM_COLS] =
+{
+/* Event                    Action 1                   Action 2               Next State */
+/* API_ENABLE    */  {BTA_SYS_HW_API_ENABLE,        BTA_SYS_IGNORE,         BTA_SYS_HW_ON},
+/* EVT_ENABLED   */  {BTA_SYS_IGNORE,               BTA_SYS_IGNORE,         BTA_SYS_HW_ON},
+/* STACK_ENABLED */  {BTA_SYS_IGNORE,               BTA_SYS_IGNORE,         BTA_SYS_HW_ON},
+/* API_DISABLE   */  {BTA_SYS_HW_API_DISABLE,       BTA_SYS_IGNORE,         BTA_SYS_HW_ON}, /* don't change the state here, as some other modules might be active */
+/* EVT_DISABLED */   {BTA_SYS_HW_ERROR,             BTA_SYS_IGNORE,         BTA_SYS_HW_ON},
+/* EVT_ERROR */      {BTA_SYS_HW_ERROR,             BTA_SYS_IGNORE,         BTA_SYS_HW_ON}
+};
+
+const UINT8 bta_sys_hw_stopping[][BTA_SYS_NUM_COLS] =
+{
+/* Event                    Action 1                   Action 2               Next State */
+/* API_ENABLE    */  {BTA_SYS_IGNORE,               BTA_SYS_IGNORE,         BTA_SYS_HW_STARTING}, /* change state, and wait for completion event to enable */
+/* EVT_ENABLED   */  {BTA_SYS_HW_EVT_ENABLED,       BTA_SYS_IGNORE,         BTA_SYS_HW_STOPPING}, /* successive enable/disable: finish the enable before disabling */
+/* STACK_ENABLED */  {BTA_SYS_HW_EVT_STACK_ENABLED, BTA_SYS_HW_API_DISABLE, BTA_SYS_HW_STOPPING}, /* successive enable/disable: notify, then stop */
+/* API_DISABLE   */  {BTA_SYS_IGNORE,               BTA_SYS_IGNORE,         BTA_SYS_HW_STOPPING}, /* wait for completion event */
+/* EVT_DISABLED  */  {BTA_SYS_HW_EVT_DISABLED,      BTA_SYS_IGNORE,         BTA_SYS_HW_OFF},
+/* EVT_ERROR     */  {BTA_SYS_HW_API_DISABLE,       BTA_SYS_IGNORE,         BTA_SYS_HW_STOPPING}
+};
+
+typedef const UINT8 (*tBTA_SYS_ST_TBL)[BTA_SYS_NUM_COLS];
+
+/* state table */
+const tBTA_SYS_ST_TBL bta_sys_st_tbl[] = {
+    bta_sys_hw_off,
+    bta_sys_hw_starting,
+    bta_sys_hw_on,
+    bta_sys_hw_stopping
+};
+
+/*******************************************************************************
+**
+** Function         bta_sys_init
+**
+** Description      BTA initialization; called from task initialization.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_sys_init(void)
+{
+    memset(&bta_sys_cb, 0, sizeof(tBTA_SYS_CB));
+
+    btu_bta_alarm_queue = fixed_queue_new(SIZE_MAX);
+
+    alarm_register_processing_queue(btu_bta_alarm_queue, bt_workqueue_thread);
+
+    appl_trace_level = APPL_INITIAL_TRACE_LEVEL;
+
+    /* register BTA SYS message handler */
+    bta_sys_register( BTA_ID_SYS,  &bta_sys_hw_reg);
+
+    /* register for BTM notifications */
+    BTM_RegisterForDeviceStatusNotif ((tBTM_DEV_STATUS_CB*)&bta_sys_hw_btm_cback );
+
+#if( defined BTA_AR_INCLUDED ) && (BTA_AR_INCLUDED == TRUE)
+    bta_ar_init();
+#endif
+
+}
+
+void bta_sys_free(void) {
+    alarm_unregister_processing_queue(btu_bta_alarm_queue);
+    fixed_queue_free(btu_bta_alarm_queue, NULL);
+    btu_bta_alarm_queue = NULL;
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_sm_execute
+**
+** Description      State machine event handling function for DM
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+BOOLEAN bta_sys_sm_execute(BT_HDR *p_msg)
+{
+    BOOLEAN freebuf = TRUE;
+    tBTA_SYS_ST_TBL      state_table;
+    UINT8               action;
+    int                 i;
+
+    APPL_TRACE_EVENT("bta_sys_sm_execute state:%d, event:0x%x",  bta_sys_cb.state, p_msg->event);
+
+    /* look up the state table for the current state */
+    state_table = bta_sys_st_tbl[bta_sys_cb.state];
+    /* update state */
+    bta_sys_cb.state = state_table[p_msg->event & 0x00ff][BTA_SYS_NEXT_STATE];
+
+    /* execute action functions */
+    for (i = 0; i < BTA_SYS_ACTIONS; i++)
+    {
+        if ((action = state_table[p_msg->event & 0x00ff][i]) != BTA_SYS_IGNORE)
+        {
+            (*bta_sys_action[action])( (tBTA_SYS_HW_MSG*) p_msg);
+        }
+        else
+        {
+            break;
+        }
+    }
+    return freebuf;
+
+}
+
+
+void bta_sys_hw_register( tBTA_SYS_HW_MODULE module, tBTA_SYS_HW_CBACK *cback)
+{
+    bta_sys_cb.sys_hw_cback[module]=cback;
+}
+
+
+void bta_sys_hw_unregister( tBTA_SYS_HW_MODULE module )
+{
+    bta_sys_cb.sys_hw_cback[module]=NULL;
+}
+
+/*******************************************************************************
+**
+** Function         bta_sys_hw_btm_cback
+**
+** Description     This function is registered by BTA SYS to BTM in order to get status notifications
+**
+**
+** Returns
+**
+*******************************************************************************/
+void bta_sys_hw_btm_cback( tBTM_DEV_STATUS status )
+{
+
+    tBTA_SYS_HW_MSG *sys_event =
+        (tBTA_SYS_HW_MSG *)osi_malloc(sizeof(tBTA_SYS_HW_MSG));
+
+    APPL_TRACE_DEBUG("%s was called with parameter: %i", __func__, status);
+
+    /* send a message to BTA SYS */
+    if (status == BTM_DEV_STATUS_UP) {
+        sys_event->hdr.event = BTA_SYS_EVT_STACK_ENABLED_EVT;
+    } else if (status == BTM_DEV_STATUS_DOWN) {
+        sys_event->hdr.event = BTA_SYS_ERROR_EVT;
+    } else {
+        /* BTM_DEV_STATUS_CMD_TOUT is ignored for now. */
+        osi_free_and_reset((void **)&sys_event);
+    }
+
+    if (sys_event)
+        bta_sys_sendmsg(sys_event);
+}
+
+/*******************************************************************************
+**
+** Function         bta_sys_hw_error
+**
+** Description     In case the HW device stops answering... Try to turn it off, then re-enable all
+**                      previously active SW modules.
+**
+** Returns          success or failure
+**
+*******************************************************************************/
+void bta_sys_hw_error(tBTA_SYS_HW_MSG *p_sys_hw_msg)
+{
+    UINT8 module_index;
+    UNUSED(p_sys_hw_msg);
+
+    APPL_TRACE_DEBUG("%s", __FUNCTION__);
+
+    for (module_index = 0; module_index < BTA_SYS_MAX_HW_MODULES; module_index++)
+    {
+        if( bta_sys_cb.sys_hw_module_active &  ((UINT32)1 << module_index )) {
+            switch( module_index)
+                {
+                case BTA_SYS_HW_BLUETOOTH:
+                   /* Send BTA_SYS_HW_ERROR_EVT to DM */
+                   if (bta_sys_cb.sys_hw_cback[module_index] != NULL)
+                       bta_sys_cb.sys_hw_cback[module_index] (BTA_SYS_HW_ERROR_EVT);
+                    break;
+                default:
+                    /* not yet supported */
+                    break;
+                }
+        }
+    }
+}
+
+
+
+/*******************************************************************************
+**
+** Function         bta_sys_hw_enable
+**
+** Description     this function is called after API enable and HW has been turned on
+**
+**
+** Returns          success or failure
+**
+*******************************************************************************/
+
+void bta_sys_hw_api_enable( tBTA_SYS_HW_MSG *p_sys_hw_msg )
+{
+    if ((!bta_sys_cb.sys_hw_module_active) && (bta_sys_cb.state != BTA_SYS_HW_ON))
+    {
+        /* register which HW module was turned on */
+        bta_sys_cb.sys_hw_module_active |=  ((UINT32)1 << p_sys_hw_msg->hw_module );
+
+        tBTA_SYS_HW_MSG *p_msg =
+            (tBTA_SYS_HW_MSG *)osi_malloc(sizeof(tBTA_SYS_HW_MSG));
+        p_msg->hdr.event = BTA_SYS_EVT_ENABLED_EVT;
+        p_msg->hw_module = p_sys_hw_msg->hw_module;
+
+        bta_sys_sendmsg(p_msg);
+    }
+    else
+    {
+        /* register which HW module was turned on */
+        bta_sys_cb.sys_hw_module_active |=  ((UINT32)1 << p_sys_hw_msg->hw_module );
+
+        /* HW already in use, so directly notify the caller */
+        if (bta_sys_cb.sys_hw_cback[p_sys_hw_msg->hw_module ]!= NULL )
+            bta_sys_cb.sys_hw_cback[p_sys_hw_msg->hw_module ](  BTA_SYS_HW_ON_EVT   );
+    }
+
+    APPL_TRACE_EVENT ("bta_sys_hw_api_enable for %d, active modules 0x%04X",
+                    p_sys_hw_msg->hw_module, bta_sys_cb.sys_hw_module_active);
+
+}
+
+/*******************************************************************************
+**
+** Function         bta_sys_hw_disable
+**
+** Description     if no other module is using the HW, this function will call ( if defined ) a user-macro to turn off the HW
+**
+**
+** Returns          success or failure
+**
+*******************************************************************************/
+void bta_sys_hw_api_disable(tBTA_SYS_HW_MSG *p_sys_hw_msg)
+{
+    APPL_TRACE_DEBUG("bta_sys_hw_api_disable for %d, active modules: 0x%04X",
+        p_sys_hw_msg->hw_module, bta_sys_cb.sys_hw_module_active );
+
+    /* make sure the related SW blocks were stopped */
+    bta_sys_disable( p_sys_hw_msg->hw_module );
+
+
+    /* register which module we turn off */
+    bta_sys_cb.sys_hw_module_active &=  ~((UINT32)1 << p_sys_hw_msg->hw_module );
+
+
+    /* if there are still some SW modules using the HW, just provide an answer to the calling */
+    if( bta_sys_cb.sys_hw_module_active != 0  )
+    {
+        /*  if there are still some SW modules using the HW,  directly notify the caller */
+        if( bta_sys_cb.sys_hw_cback[p_sys_hw_msg->hw_module ]!= NULL )
+            bta_sys_cb.sys_hw_cback[p_sys_hw_msg->hw_module ](  BTA_SYS_HW_OFF_EVT   );
+    }
+    else
+    {
+        /* manually update the state of our system */
+        bta_sys_cb.state = BTA_SYS_HW_STOPPING;
+
+        tBTA_SYS_HW_MSG *p_msg =
+            (tBTA_SYS_HW_MSG *)osi_malloc(sizeof(tBTA_SYS_HW_MSG));
+        p_msg->hdr.event = BTA_SYS_EVT_DISABLED_EVT;
+        p_msg->hw_module = p_sys_hw_msg->hw_module;
+
+        bta_sys_sendmsg(p_msg);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_sys_hw_event_enabled
+**
+** Description
+**
+**
+** Returns          success or failure
+**
+*******************************************************************************/
+void bta_sys_hw_evt_enabled(tBTA_SYS_HW_MSG *p_sys_hw_msg)
+{
+    APPL_TRACE_EVENT("bta_sys_hw_evt_enabled for %i", p_sys_hw_msg->hw_module);
+    BTM_DeviceReset( NULL );
+}
+
+
+/*******************************************************************************
+**
+** Function         bta_sys_hw_event_disabled
+**
+** Description
+**
+**
+** Returns          success or failure
+**
+*******************************************************************************/
+void bta_sys_hw_evt_disabled(tBTA_SYS_HW_MSG *p_sys_hw_msg)
+{
+    UINT8 hw_module_index;
+
+    APPL_TRACE_DEBUG("bta_sys_hw_evt_disabled - module 0x%X", p_sys_hw_msg->hw_module);
+
+    for (hw_module_index = 0; hw_module_index < BTA_SYS_MAX_HW_MODULES; hw_module_index++)
+    {
+        if (bta_sys_cb.sys_hw_cback[hw_module_index] != NULL)
+            bta_sys_cb.sys_hw_cback[hw_module_index] (BTA_SYS_HW_OFF_EVT);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_sys_hw_event_stack_enabled
+**
+** Description     we receive this event once the SW side is ready ( stack, FW download,... ),
+**                       i.e. we can really start using the device. So notify the app.
+**
+** Returns          success or failure
+**
+*******************************************************************************/
+void bta_sys_hw_evt_stack_enabled(tBTA_SYS_HW_MSG *p_sys_hw_msg)
+{
+    UINT8 hw_module_index;
+    UNUSED(p_sys_hw_msg);
+
+    APPL_TRACE_DEBUG(" bta_sys_hw_evt_stack_enabled!notify the callers");
+
+    for (hw_module_index = 0; hw_module_index < BTA_SYS_MAX_HW_MODULES; hw_module_index++ )
+    {
+        if (bta_sys_cb.sys_hw_cback[hw_module_index] != NULL)
+            bta_sys_cb.sys_hw_cback[hw_module_index] (BTA_SYS_HW_ON_EVT);
+    }
+}
+
+
+
+
+/*******************************************************************************
+**
+** Function         bta_sys_event
+**
+** Description      BTA event handler; called from task event handler.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_sys_event(BT_HDR *p_msg)
+{
+    UINT8       id;
+    BOOLEAN     freebuf = TRUE;
+
+    APPL_TRACE_EVENT("BTA got event 0x%x", p_msg->event);
+
+    /* get subsystem id from event */
+    id = (UINT8) (p_msg->event >> 8);
+
+    /* verify id and call subsystem event handler */
+    if ((id < BTA_ID_MAX) && (bta_sys_cb.reg[id] != NULL))
+    {
+        freebuf = (*bta_sys_cb.reg[id]->evt_hdlr)(p_msg);
+    }
+    else
+    {
+        APPL_TRACE_WARNING("BTA got unregistered event id %d", id);
+    }
+
+    if (freebuf)
+    {
+        osi_free(p_msg);
+    }
+
+}
+
+/*******************************************************************************
+**
+** Function         bta_sys_register
+**
+** Description      Called by other BTA subsystems to register their event
+**                  handler.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_sys_register(UINT8 id, const tBTA_SYS_REG *p_reg)
+{
+    bta_sys_cb.reg[id] = (tBTA_SYS_REG *) p_reg;
+    bta_sys_cb.is_reg[id] = TRUE;
+}
+
+/*******************************************************************************
+**
+** Function         bta_sys_deregister
+**
+** Description      Called by other BTA subsystems to de-register
+**                  handler.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_sys_deregister(UINT8 id)
+{
+    bta_sys_cb.is_reg[id] = FALSE;
+}
+
+/*******************************************************************************
+**
+** Function         bta_sys_is_register
+**
+** Description      Called by other BTA subsystems to get registeration
+**                  status.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+BOOLEAN bta_sys_is_register(UINT8 id)
+{
+    return bta_sys_cb.is_reg[id];
+}
+
+/*******************************************************************************
+**
+** Function         bta_sys_sendmsg
+**
+** Description      Send a GKI message to BTA.  This function is designed to
+**                  optimize sending of messages to BTA.  It is called by BTA
+**                  API functions and call-in functions.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_sys_sendmsg(void *p_msg)
+{
+    // There is a race condition that occurs if the stack is shut down while
+    // there is a procedure in progress that can schedule a task via this
+    // message queue. This causes |btu_bta_msg_queue| to get cleaned up before
+    // it gets used here; hence we check for NULL before using it.
+    if (btu_bta_msg_queue)
+        fixed_queue_enqueue(btu_bta_msg_queue, p_msg);
+}
+
+/*******************************************************************************
+**
+** Function         bta_sys_start_timer
+**
+** Description      Start a protocol timer for the specified amount
+**                  of time in milliseconds.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_sys_start_timer(alarm_t *alarm, period_ms_t interval, uint16_t event,
+                         uint16_t layer_specific)
+{
+    BT_HDR *p_buf = (BT_HDR *)osi_malloc(sizeof(BT_HDR));
+
+    p_buf->event = event;
+    p_buf->layer_specific = layer_specific;
+    alarm_set_on_queue(alarm, interval, bta_sys_sendmsg, p_buf,
+                       btu_bta_alarm_queue);
+}
+
+/*******************************************************************************
+**
+** Function         bta_sys_disable
+**
+** Description      For each registered subsystem execute its disable function.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_sys_disable(tBTA_SYS_HW_MODULE module)
+{
+    int bta_id = 0;
+    int bta_id_max = 0;
+
+    APPL_TRACE_DEBUG("bta_sys_disable: module %i", module);
+
+    switch( module )
+    {
+        case BTA_SYS_HW_BLUETOOTH:
+            bta_id = BTA_ID_DM;
+            bta_id_max = BTA_ID_BLUETOOTH_MAX;
+            break;
+        default:
+            APPL_TRACE_WARNING("bta_sys_disable: unkown module");
+            return;
+    }
+
+    for ( ; bta_id <= bta_id_max; bta_id++)
+    {
+        if (bta_sys_cb.reg[bta_id] != NULL)
+        {
+            if (bta_sys_cb.is_reg[bta_id] == TRUE  &&  bta_sys_cb.reg[bta_id]->disable != NULL)
+            {
+                (*bta_sys_cb.reg[bta_id]->disable)();
+            }
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_sys_set_trace_level
+**
+** Description      Set trace level for BTA
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_sys_set_trace_level(UINT8 level)
+{
+    appl_trace_level = level;
+}
+
+/*******************************************************************************
+**
+** Function         bta_sys_get_sys_features
+**
+** Description      Returns sys_features to other BTA modules.
+**
+** Returns          sys_features
+**
+*******************************************************************************/
+UINT16 bta_sys_get_sys_features (void)
+{
+    return bta_sys_cb.sys_features;
+}
diff --git a/rtkbt/code/bt/bta/sys/utl.c b/rtkbt/code/bt/bta/sys/utl.c
new file mode 100755
index 0000000..fc3d7eb
--- /dev/null
+++ b/rtkbt/code/bt/bta/sys/utl.c
@@ -0,0 +1,277 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains utility functions.
+ *
+ ******************************************************************************/
+#include <stddef.h>
+#include "utl.h"
+#include "bt_common.h"
+#include "btm_api.h"
+
+/*******************************************************************************
+**
+** Function         utl_str2int
+**
+** Description      This utility function converts a character string to an
+**                  integer.  Acceptable values in string are 0-9.  If invalid
+**                  string or string value too large, -1 is returned.  Leading
+**                  spaces are skipped.
+**
+**
+** Returns          Integer value or -1 on error.
+**
+*******************************************************************************/
+INT16 utl_str2int(const char *p_s)
+{
+    INT32   val = 0;
+
+    for (;*p_s == ' ' && *p_s != 0; p_s++);
+
+    if (*p_s == 0) return -1;
+
+    for (;;)
+    {
+        if ((*p_s < '0') || (*p_s > '9')) return -1;
+
+        val += (INT32) (*p_s++ - '0');
+
+        if (val > 32767) return -1;
+
+        if (*p_s == 0)
+        {
+            return (INT16) val;
+        }
+        else
+        {
+            val *= 10;
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         utl_strucmp
+**
+** Description      This utility function compares two strings in uppercase.
+**                  String p_s must be uppercase.  String p_t is converted to
+**                  uppercase if lowercase.  If p_s ends first, the substring
+**                  match is counted as a match.
+**
+**
+** Returns          0 if strings match, nonzero otherwise.
+**
+*******************************************************************************/
+int utl_strucmp(const char *p_s, const char *p_t)
+{
+    char c;
+
+    while (*p_s && *p_t)
+    {
+        c = *p_t++;
+        if (c >= 'a' && c <= 'z')
+        {
+            c -= 0x20;
+        }
+        if (*p_s++ != c)
+        {
+            return -1;
+        }
+    }
+    /* if p_t hit null first, no match */
+    if (*p_t == 0 && *p_s != 0)
+    {
+        return 1;
+    }
+    /* else p_s hit null first, count as match */
+    else
+    {
+        return 0;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         utl_itoa
+**
+** Description      This utility function converts a UINT16 to a string.  The
+**                  string is NULL-terminated.  The length of the string is
+**                  returned;
+**
+**
+** Returns          Length of string.
+**
+*******************************************************************************/
+UINT8 utl_itoa(UINT16 i, char *p_s)
+{
+    UINT16  j, k;
+    char    *p = p_s;
+    BOOLEAN fill = FALSE;
+
+    if (i == 0)
+    {
+        /* take care of zero case */
+        *p++ = '0';
+    }
+    else
+    {
+        for(j = 10000; j > 0; j /= 10)
+        {
+            k = i / j;
+            i %= j;
+            if (k > 0 || fill)
+            {
+              *p++ = k + '0';
+              fill = TRUE;
+            }
+        }
+    }
+    *p = 0;
+    return (UINT8) (p - p_s);
+}
+
+/*******************************************************************************
+**
+** Function         utl_set_device_class
+**
+** Description      This function updates the local Device Class.
+**
+** Parameters:
+**                  p_cod   - Pointer to the device class to set to
+**
+**                  cmd     - the fields of the device class to update.
+**                            BTA_UTL_SET_COD_MAJOR_MINOR, - overwrite major, minor class
+**                            BTA_UTL_SET_COD_SERVICE_CLASS - set the bits in the input
+**                            BTA_UTL_CLR_COD_SERVICE_CLASS - clear the bits in the input
+**                            BTA_UTL_SET_COD_ALL - overwrite major, minor, set the bits in service class
+**                            BTA_UTL_INIT_COD - overwrite major, minor, and service class
+**
+** Returns          TRUE if successful, Otherwise FALSE
+**
+*******************************************************************************/
+BOOLEAN utl_set_device_class(tBTA_UTL_COD *p_cod, UINT8 cmd)
+{
+    UINT8 *dev;
+    UINT16 service;
+    UINT8  minor, major;
+    DEV_CLASS dev_class;
+
+    dev = BTM_ReadDeviceClass();
+    BTM_COD_SERVICE_CLASS( service, dev );
+    BTM_COD_MINOR_CLASS(minor, dev );
+    BTM_COD_MAJOR_CLASS(major, dev );
+
+    switch(cmd)
+    {
+    case BTA_UTL_SET_COD_MAJOR_MINOR:
+        minor = p_cod->minor & BTM_COD_MINOR_CLASS_MASK;
+        major = p_cod->major & BTM_COD_MAJOR_CLASS_MASK;
+        break;
+
+    case BTA_UTL_SET_COD_SERVICE_CLASS:
+        /* clear out the bits that is not SERVICE_CLASS bits */
+        p_cod->service &= BTM_COD_SERVICE_CLASS_MASK;
+        service = service | p_cod->service;
+        break;
+
+    case BTA_UTL_CLR_COD_SERVICE_CLASS:
+        p_cod->service &= BTM_COD_SERVICE_CLASS_MASK;
+        service = service & (~p_cod->service);
+        break;
+
+    case BTA_UTL_SET_COD_ALL:
+        minor = p_cod->minor & BTM_COD_MINOR_CLASS_MASK;
+        major = p_cod->major & BTM_COD_MAJOR_CLASS_MASK;
+        p_cod->service &= BTM_COD_SERVICE_CLASS_MASK;
+        service = service | p_cod->service;
+        break;
+
+    case BTA_UTL_INIT_COD:
+        minor = p_cod->minor & BTM_COD_MINOR_CLASS_MASK;
+        major = p_cod->major & BTM_COD_MAJOR_CLASS_MASK;
+        service = p_cod->service & BTM_COD_SERVICE_CLASS_MASK;
+        break;
+
+    default:
+        return FALSE;
+    }
+
+    /* convert the fields into the device class type */
+    FIELDS_TO_COD(dev_class, minor, major, service);
+
+    if (BTM_SetDeviceClass(dev_class) == BTM_SUCCESS)
+        return TRUE;
+
+    return FALSE;
+}
+
+/*******************************************************************************
+**
+** Function         utl_isintstr
+**
+** Description      This utility function checks if the given string is an
+**                  integer string or not
+**
+**
+** Returns          TRUE if successful, Otherwise FALSE
+**
+*******************************************************************************/
+BOOLEAN utl_isintstr(const char *p_s)
+{
+    UINT16 i = 0;
+
+    for(i=0; p_s[i] != 0; i++)
+    {
+        if(((p_s[i] < '0') || (p_s[i] > '9')) && (p_s[i] != ';'))
+            return FALSE;
+    }
+
+    return TRUE;
+}
+
+/*******************************************************************************
+**
+** Function         utl_isdialstr
+**
+** Description      This utility function checks if the given string contains
+**                  only dial digits or not
+**
+**
+** Returns          TRUE if successful, Otherwise FALSE
+**
+*******************************************************************************/
+BOOLEAN utl_isdialstr(const char *p_s)
+{
+    UINT16 i = 0;
+
+    for(i=0; p_s[i] != 0; i++)
+    {
+        if(!(((p_s[i] >= '0') && (p_s[i] <= '9'))
+            || (p_s[i] == '*') || (p_s[i] == '+') || (p_s[i] == '#') || (p_s[i] == ';')
+            || ((p_s[i] >= 'A') && (p_s[i] <= 'C'))
+            || ((p_s[i] == 'p') || (p_s[i] == 'P')
+            || (p_s[i] == 'w') || (p_s[i] == 'W'))))
+            return FALSE;
+    }
+
+    return TRUE;
+}
+
+
diff --git a/rtkbt/code/bt/btcore/Android.mk b/rtkbt/code/bt/btcore/Android.mk
new file mode 100755
index 0000000..dbeb92d
--- /dev/null
+++ b/rtkbt/code/bt/btcore/Android.mk
@@ -0,0 +1,115 @@
+ ##############################################################################
+ #
+ #  Copyright (C) 2014 Google, Inc.
+ #
+ #  Licensed under the Apache License, Version 2.0 (the "License");
+ #  you may not use this file except in compliance with the License.
+ #  You may obtain a copy of the License at:
+ #
+ #  http://www.apache.org/licenses/LICENSE-2.0
+ #
+ #  Unless required by applicable law or agreed to in writing, software
+ #  distributed under the License is distributed on an "AS IS" BASIS,
+ #  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ #  See the License for the specific language governing permissions and
+ #  limitations under the License.
+ #
+ ##############################################################################
+
+LOCAL_PATH := $(call my-dir)
+
+# Common variables
+# ========================================================
+btcoreCommonSrc := \
+    src/bdaddr.c \
+    src/device_class.c \
+    src/hal_util.c \
+    src/module.c \
+    src/osi_module.c \
+    src/property.c \
+    src/uuid.c
+
+btcoreCommonTestSrc := \
+    ./test/bdaddr_test.cpp \
+    ./test/device_class_test.cpp \
+    ./test/property_test.cpp \
+    ./test/uuid_test.cpp \
+    ../osi/test/AllocationTestHarness.cpp
+
+btcoreCommonIncludes := \
+    $(LOCAL_PATH)/include \
+    $(LOCAL_PATH)/..
+
+# libbtcore static library for target
+# ========================================================
+include $(CLEAR_VARS)
+LOCAL_C_INCLUDES := $(btcoreCommonIncludes)
+LOCAL_SRC_FILES := $(btcoreCommonSrc)
+LOCAL_MODULE := libbtcore-rtk
+LOCAL_MODULE_TAGS := optional
+LOCAL_SHARED_LIBRARIES := libc liblog
+LOCAL_MODULE_CLASS := STATIC_LIBRARIES
+
+LOCAL_CFLAGS += $(bluetooth_CFLAGS)
+LOCAL_CONLYFLAGS += $(bluetooth_CONLYFLAGS)
+LOCAL_CPPFLAGS += $(bluetooth_CPPFLAGS)
+
+include $(BUILD_STATIC_LIBRARY)
+
+## libbtcore static library for host
+## ========================================================
+#ifeq ($(HOST_OS),linux)
+#include $(CLEAR_VARS)
+#LOCAL_C_INCLUDES := $(btcoreCommonIncludes)
+#LOCAL_SRC_FILES := $(btcoreCommonSrc)
+#LOCAL_MODULE := libbtcore-host
+#LOCAL_MODULE_TAGS := optional
+#LOCAL_SHARED_LIBRARIES := liblog
+#LOCAL_MODULE_CLASS := STATIC_LIBRARIES
+#
+## TODO(armansito): Setting _GNU_SOURCE isn't very platform-independent but
+## should be compatible for a Linux host OS. We should figure out what to do for
+## a non-Linux host OS.
+#LOCAL_CFLAGS += $(bluetooth_CFLAGS) -D_GNU_SOURCE
+#LOCAL_CONLYFLAGS += $(bluetooth_CONLYFLAGS)
+#LOCAL_CPPFLAGS += $(bluetooth_CPPFLAGS)
+#
+#include $(BUILD_HOST_STATIC_LIBRARY)
+#endif
+#
+## Note: It's good to get the tests compiled both for the host and the target so
+## we get to test with both Bionic libc and glibc
+#
+## libbtcore unit tests for target
+## ========================================================
+#include $(CLEAR_VARS)
+#LOCAL_C_INCLUDES := $(btcoreCommonIncludes)
+#LOCAL_SRC_FILES := $(btcoreCommonTestSrc)
+#LOCAL_MODULE := net_test_btcore
+#LOCAL_MODULE_TAGS := tests
+#LOCAL_SHARED_LIBRARIES := liblog
+#LOCAL_STATIC_LIBRARIES := libbtcore libosi
+#
+#LOCAL_CFLAGS += $(bluetooth_CFLAGS)
+#LOCAL_CONLYFLAGS += $(bluetooth_CONLYFLAGS)
+#LOCAL_CPPFLAGS += $(bluetooth_CPPFLAGS)
+#
+#include $(BUILD_NATIVE_TEST)
+#
+## libbtcore unit tests for host
+## ========================================================
+#ifeq ($(HOST_OS),linux)
+#include $(CLEAR_VARS)
+#LOCAL_C_INCLUDES := $(btcoreCommonIncludes)
+#LOCAL_SRC_FILES := $(btcoreCommonTestSrc)
+#LOCAL_MODULE := net_test_btcore
+#LOCAL_MODULE_TAGS := tests
+#LOCAL_SHARED_LIBRARIES := liblog
+#LOCAL_STATIC_LIBRARIES := libbtcore-host libosi-host
+#
+#LOCAL_CFLAGS += $(bluetooth_CFLAGS)
+#LOCAL_CONLYFLAGS += $(bluetooth_CONLYFLAGS)
+#LOCAL_CPPFLAGS += $(bluetooth_CPPFLAGS)
+#
+#include $(BUILD_HOST_NATIVE_TEST)
+#endif
diff --git a/rtkbt/code/bt/btcore/BUILD.gn b/rtkbt/code/bt/btcore/BUILD.gn
new file mode 100755
index 0000000..a961d8d
--- /dev/null
+++ b/rtkbt/code/bt/btcore/BUILD.gn
@@ -0,0 +1,60 @@
+#
+#  Copyright (C) 2015 Google, Inc.
+#
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at:
+#
+#  http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+#
+
+static_library("btcore") {
+  sources = [
+    "src/bdaddr.c",
+    "src/device_class.c",
+    "src/hal_util.c",
+    "src/module.c",
+    "src/property.c",
+    "src/uuid.c",
+    "src/osi_module.c",
+  ]
+
+  include_dirs = [
+    "include",
+    "//",
+  ]
+}
+
+executable("net_test_btcore") {
+  testonly = true
+  sources = [
+    "test/bdaddr_test.cpp",
+    "test/device_class_test.cpp",
+    "test/property_test.cpp",
+    "test/uuid_test.cpp",
+    "//osi/test/AllocationTestHarness.cpp",
+  ]
+
+  include_dirs = [
+    "include",
+    "//",
+  ]
+
+  deps = [
+    "//btcore",
+    "//osi",
+    "//third_party/googletest:gtest_main",
+  ]
+
+  libs = [
+    "-lpthread",
+    "-lrt",
+    "-ldl",
+  ]
+}
diff --git a/rtkbt/code/bt/btcore/include/bdaddr.h b/rtkbt/code/bt/btcore/include/bdaddr.h
new file mode 100755
index 0000000..79f8dd5
--- /dev/null
+++ b/rtkbt/code/bt/btcore/include/bdaddr.h
@@ -0,0 +1,62 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+#include <hardware/bluetooth.h>
+#include <stdbool.h>
+#include <stddef.h>
+
+#include "osi/include/hash_map.h"
+
+// Note: the string representation of a bdaddr is expected to have the format
+// xx:xx:xx:xx:xx:xx
+// where each 'x' is a hex digit. The API presented in this header will accept
+// both uppercase and lowercase digits but will only ever produce lowercase
+// digits.
+
+typedef char bdstr_t[sizeof("xx:xx:xx:xx:xx:xx")];
+
+// Returns true if |addr| is the empty address (00:00:00:00:00:00).
+// |addr| may not be NULL.
+bool bdaddr_is_empty(const bt_bdaddr_t *addr);
+
+// Returns true if |first| and |second| refer to the same address. Neither
+// may be NULL.
+bool bdaddr_equals(const bt_bdaddr_t *first, const bt_bdaddr_t *second);
+
+// Returns destination bdaddr |dest| after copying |src| to |dest|.
+// |dest| and |src| must not be NULL.
+bt_bdaddr_t *bdaddr_copy(bt_bdaddr_t *dest, const bt_bdaddr_t *src);
+
+// Makes a string representation of |addr| and places it into |string|. |size|
+// refers to the size of |string|'s buffer and must be >= 18. On success, this
+// function returns |string|, otherwise it returns NULL. Neither |addr| nor |string|
+// may be NULL.
+const char *bdaddr_to_string(const bt_bdaddr_t *addr, char *string, size_t size);
+
+// Returns true if |string| represents a Bluetooth address. |string| may not be NULL.
+bool string_is_bdaddr(const char *string);
+
+// Converts |string| to bt_bdaddr_t and places it in |addr|. If |string| does not
+// represent a Bluetooth address, |addr| is not modified and this function returns
+// false. Otherwise, it returns true. Neither |string| nor |addr| may be NULL.
+bool string_to_bdaddr(const char *string, bt_bdaddr_t *addr);
+
+// A hash function tailored for bdaddrs.
+hash_index_t hash_function_bdaddr(const void *key);
diff --git a/rtkbt/code/bt/btcore/include/device_class.h b/rtkbt/code/bt/btcore/include/device_class.h
new file mode 100755
index 0000000..8c2c3c0
--- /dev/null
+++ b/rtkbt/code/bt/btcore/include/device_class.h
@@ -0,0 +1,92 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+#include <stdbool.h>
+#include <stdint.h>
+
+// Provides Class Of Device primitive as specified in the bluetooth spec.
+// [Class Of Device](https://www.bluetooth.org/en-us/specification/assigned-numbers/baseband)
+
+// Device class may be defined in other structures.
+// Only use defined methods to manipulate internals.
+typedef struct bt_device_class_t {
+  uint8_t _[3];  // Do not access directly; use methods below.
+} bt_device_class_t;
+
+// Copies the |data| class of device stream into device class |dc|.  |dc|
+// and |data| must not be NULL.
+void device_class_from_stream(bt_device_class_t *dc, const uint8_t *data);
+
+// Serializes the device class |dc| to pointer argument |data| in big endian
+// format.  |len| must contain the buffer size of |data|.  Returns the actual
+// number of bytes copied into |data|.  |dc| and |data| must not be NULL.
+int device_class_to_stream(const bt_device_class_t *dc, uint8_t *data, size_t len);
+
+// Copies the |data| class of device integer into device class |dc|.  |dc|
+// must not be NULL.
+void device_class_from_int(bt_device_class_t *dc, int data);
+
+// Returns the device class |dc| in integer format.  |dc| must not be NULL.
+int device_class_to_int(const bt_device_class_t *dc);
+
+// Compares and returns |true| if two device classes |p1| and |p2| are equal.
+// False otherwise.
+bool device_class_equals(const bt_device_class_t *p1, const bt_device_class_t *p2);
+
+// Copies and returns |true| if the device class was successfully copied from
+//  |p2| into |p1|.  False otherwise.
+bool device_class_copy(bt_device_class_t *dest, const bt_device_class_t *src);
+
+// Query, getters and setters for the major device class.  |dc| must not be NULL.
+int device_class_get_major_device(const bt_device_class_t *dc);
+void device_class_set_major_device(bt_device_class_t *dc, int val);
+
+// Query, getters and setters for the minor device class. |dc| must not be NULL.
+int device_class_get_minor_device(const bt_device_class_t *dc);
+void device_class_set_minor_device(bt_device_class_t *dc, int val);
+
+// Query, getters and setters for the various major service class features.
+// |dc| must not be NULL.
+bool device_class_get_limited(const bt_device_class_t *dc);
+void device_class_set_limited(bt_device_class_t *dc, bool set);
+
+bool device_class_get_positioning(const bt_device_class_t *dc);
+void device_class_set_positioning(bt_device_class_t *dc, bool set);
+
+bool device_class_get_networking(const bt_device_class_t *dc);
+void device_class_set_networking(bt_device_class_t *dc, bool set);
+
+bool device_class_get_rendering(const bt_device_class_t *dc);
+void device_class_set_rendering(bt_device_class_t *dc, bool set);
+
+bool device_class_get_capturing(const bt_device_class_t *dc);
+void device_class_set_capturing(bt_device_class_t *dc, bool set);
+
+bool device_class_get_object_transfer(const bt_device_class_t *dc);
+void device_class_set_object_transfer(bt_device_class_t *dc, bool set);
+
+bool device_class_get_audio(const bt_device_class_t *dc);
+void device_class_set_audio(bt_device_class_t *dc, bool set);
+
+bool device_class_get_telephony(const bt_device_class_t *dc);
+void device_class_set_telephony(bt_device_class_t *dc, bool set);
+
+bool device_class_get_information(const bt_device_class_t *dc);
+void device_class_set_information(bt_device_class_t *dc, bool set);
diff --git a/rtkbt/code/bt/btcore/include/device_features.h b/rtkbt/code/bt/btcore/include/device_features.h
new file mode 100755
index 0000000..f3069e3
--- /dev/null
+++ b/rtkbt/code/bt/btcore/include/device_features.h
@@ -0,0 +1,27 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+#include <stdint.h>
+
+// Represents a page of device feature enabled/disabled bits returned
+// by the local controller. See the bluetooth spec for bit indexes.
+typedef struct {
+  uint8_t as_array[8];
+} bt_device_features_t;
diff --git a/rtkbt/code/bt/btcore/include/event_mask.h b/rtkbt/code/bt/btcore/include/event_mask.h
new file mode 100755
index 0000000..ec662b2
--- /dev/null
+++ b/rtkbt/code/bt/btcore/include/event_mask.h
@@ -0,0 +1,28 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+#include <stdint.h>
+
+// Represents a mask which can be used to tell the controller which
+// HCI events the stack wishes to be informed about. See the bluetooth
+// spec for more information on what each bit means.
+typedef struct {
+  uint8_t as_array[8];
+} bt_event_mask_t;
diff --git a/rtkbt/code/bt/btcore/include/hal_util.h b/rtkbt/code/bt/btcore/include/hal_util.h
new file mode 100755
index 0000000..8456a71
--- /dev/null
+++ b/rtkbt/code/bt/btcore/include/hal_util.h
@@ -0,0 +1,24 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#pragma once
+
+struct hw_module_t;
+
+// Loads the Bluetooth library. If OS_GENERIC is defined, this function looks
+// explicitly for libbluetooth.default.so and loads it. On Android, this calls
+// the hw_get_module routine with the Bluetooth stack module id.
+int hal_util_load_bt_library(const struct hw_module_t **module);
diff --git a/rtkbt/code/bt/btcore/include/iac.h b/rtkbt/code/bt/btcore/include/iac.h
new file mode 100755
index 0000000..bcb8ab8
--- /dev/null
+++ b/rtkbt/code/bt/btcore/include/iac.h
@@ -0,0 +1,27 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+#include <stdint.h>
+
+// Inquiry Access Code
+// [Bluetooth Baseband](https://www.bluetooth.org/en-us/specification/assigned-numbers/baseband)
+typedef struct {
+  uint8_t iac[3];
+} __attribute__((packed))bt_inquiry_access_code_t;
diff --git a/rtkbt/code/bt/btcore/include/module.h b/rtkbt/code/bt/btcore/include/module.h
new file mode 100755
index 0000000..d88f5f3
--- /dev/null
+++ b/rtkbt/code/bt/btcore/include/module.h
@@ -0,0 +1,67 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+#include <stdbool.h>
+
+#include "osi/include/future.h"
+#include "osi/include/thread.h"
+
+typedef future_t *(*module_lifecycle_fn)(void);
+
+typedef struct {
+  const char *name;
+  module_lifecycle_fn init;
+  module_lifecycle_fn start_up;
+  module_lifecycle_fn shut_down;
+  module_lifecycle_fn clean_up;
+  const char *dependencies[];
+} module_t;
+
+// Prepares module management. Must be called before doing anything with modules.
+void module_management_start(void);
+// Cleans up all module management resources.
+void module_management_stop(void);
+
+const module_t *get_module(const char *name);
+
+// Initialize the provided module. |module| may not be NULL
+// and must not be initialized.
+bool module_init(const module_t *module);
+// Start up the provided module. |module| may not be NULL
+// and must be initialized or have no init function.
+bool module_start_up(const module_t *module);
+// Shut down the provided module. |module| may not be NULL.
+// If not started, does nothing.
+void module_shut_down(const module_t *module);
+// Clean up the provided module. |module| may not be NULL.
+// If not initialized, does nothing.
+void module_clean_up(const module_t *module);
+
+// Temporary callbacked wrapper for module start up, so real modules can be
+// spliced into the current janky startup sequence. Runs on a separate thread,
+// which terminates when the module start up has finished. When module startup
+// has finished, |callback| is called within the context of |callback_thread|
+// with |FUTURE_SUCCESS| or |FUTURE_FAIL| depending on whether startup succeeded
+// or not.
+void module_start_up_callbacked_wrapper(
+  const module_t *module,
+  thread_t *callback_thread,
+  thread_fn callback
+);
diff --git a/rtkbt/code/bt/btcore/include/osi_module.h b/rtkbt/code/bt/btcore/include/osi_module.h
new file mode 100755
index 0000000..964a3fa
--- /dev/null
+++ b/rtkbt/code/bt/btcore/include/osi_module.h
@@ -0,0 +1,21 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2015 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+static const char OSI_MODULE[] = "osi_module";
diff --git a/rtkbt/code/bt/btcore/include/property.h b/rtkbt/code/bt/btcore/include/property.h
new file mode 100755
index 0000000..3a41422
--- /dev/null
+++ b/rtkbt/code/bt/btcore/include/property.h
@@ -0,0 +1,77 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+#include <hardware/bluetooth.h>
+#include <stdint.h>
+#include <stdlib.h>
+
+#include "btcore/include/device_class.h"
+
+// Copies an array of consecutive properties of |count| to a newly
+// allocated array. |properties| must not be NULL.
+bt_property_t *property_copy_array(const bt_property_t *properties, size_t count);
+
+// Copies |src| to |dest|. Returns the value of |dest|.
+// |src| and |dest| must not be NULL.
+bt_property_t *property_copy(bt_property_t *dest, const bt_property_t *src);
+
+// Returns true if the value of the two properties |p1| and |p2| are equal.
+// |p1| and |p2| must not be NULL.
+bool property_equals(const bt_property_t *p1, const bt_property_t *p2);
+
+// Property resource allocations. Caller is expected to free |property|
+// using |property_free| or |property_free_array|.
+// Parameter must not be NULL. A copy of the parameter is made and
+// stored in the property.
+bt_property_t *property_new_addr(const bt_bdaddr_t *addr);
+bt_property_t *property_new_device_class(const bt_device_class_t *dc);
+bt_property_t *property_new_device_type(bt_device_type_t device_type);
+bt_property_t *property_new_discovery_timeout(const uint32_t timeout);
+bt_property_t *property_new_name(const char *name);
+bt_property_t *property_new_rssi(const int8_t rssi);
+bt_property_t *property_new_scan_mode(bt_scan_mode_t scan_mode);
+bt_property_t *property_new_uuids(const bt_uuid_t *uuid, size_t count);
+
+// Property resource frees both property and value.
+void property_free(bt_property_t *property);
+void property_free_array(bt_property_t *properties, size_t count);
+
+// Value check convenience methods. The contents of the property are
+// checked for the respective validity and returns true, false otherwise.
+// |property| must not be NULL.
+bool property_is_addr(const bt_property_t *property);
+bool property_is_device_class(const bt_property_t *property);
+bool property_is_device_type(const bt_property_t *property);
+bool property_is_discovery_timeout(const bt_property_t *property);
+bool property_is_name(const bt_property_t *property);
+bool property_is_rssi(const bt_property_t *property);
+bool property_is_scan_mode(const bt_property_t *property);
+bool property_is_uuids(const bt_property_t *property);
+
+// Value conversion convenience methods. The contents of the property are
+// properly typed and returned to the caller. |property| must not be NULL.
+const bt_bdaddr_t *property_as_addr(const bt_property_t *property);
+const bt_device_class_t *property_as_device_class(const bt_property_t *property);
+bt_device_type_t property_as_device_type(const bt_property_t *property);
+uint32_t property_as_discovery_timeout(const bt_property_t *property);
+const bt_bdname_t *property_as_name(const bt_property_t *property);
+int8_t property_as_rssi(const bt_property_t *property);
+bt_scan_mode_t property_as_scan_mode(const bt_property_t *property);
+const bt_uuid_t *property_as_uuids(const bt_property_t *property, size_t *count);
diff --git a/rtkbt/code/bt/btcore/include/uuid.h b/rtkbt/code/bt/btcore/include/uuid.h
new file mode 100755
index 0000000..40607cf
--- /dev/null
+++ b/rtkbt/code/bt/btcore/include/uuid.h
@@ -0,0 +1,75 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+#include <hardware/bluetooth.h>
+#include <stdbool.h>
+
+typedef struct uuid_string_t uuid_string_t;
+
+// Creates uuid string structure to hold a well formed UUID
+// string.  Must release resources with |uuid_string_free|.
+// Returns NULL if no memory.
+uuid_string_t *uuid_string_new(void);
+
+// Frees a uuid string structure created from |uuid_string_new|.
+// |uuid_string| may be NULL.
+void uuid_string_free(uuid_string_t *uuid_string);
+
+// Returns a string pointer to the well formed UUID string
+// entry.  |uuid_string| must not be NULL.
+const char *uuid_string_data(const uuid_string_t *uuid_string);
+
+// Creates uuid structure from a well formed UUID string
+// |uuid_string|.  The caller takes ownership of the uuid
+// structure and must release resources with |uuid_free|.
+// |uuid_string| must not be NULL.
+//
+// Returns NULL if |uuid_string| is malformed or no memory.
+//
+// A well formed UUID string is structured like this:
+//   "00112233-4455-6677-8899-aabbccddeeff"
+bt_uuid_t *uuid_new(const char *uuid_string);
+
+// Frees a uuid structure created from |uuid_new| and friends.
+// |uuid| may be NULL.
+void uuid_free(bt_uuid_t *uuid);
+
+// Returns true if the UUID is all zeros, false otherwise.
+// |uuid| may not be NULL.
+bool uuid_is_empty(const bt_uuid_t *uuid);
+
+// Returns true if the two UUIDs are equal, false otherwise.
+// |first| and |second| may not be NULL.
+bool uuid_is_equal(const bt_uuid_t *first, const bt_uuid_t *second);
+
+// Copies uuid |src| into |dest| and returns a pointer to |dest|.
+// |src| and |dest| must not be NULL.
+bt_uuid_t *uuid_copy(bt_uuid_t *dest, const bt_uuid_t *src);
+
+// Converts contents of |uuid| to a well formed UUID string
+// |uuid_string| using numbers and lower case letter.  |uuid|
+// and |uuid_string| must not be NULL.
+void uuid_to_string(const bt_uuid_t *uuid, uuid_string_t *uuid_string);
+
+// Converts contents of |uuid| to a short uuid if possible.  Returns
+// true if conversion is possible, false otherwise.
+// |uuid|, |uuid16| and |uuid32| must not be NULL.
+bool uuid_128_to_16(const bt_uuid_t *uuid, uint16_t *uuid16);
+bool uuid_128_to_32(const bt_uuid_t *uuid, uint32_t *uuid32);
diff --git a/rtkbt/code/bt/btcore/include/version.h b/rtkbt/code/bt/btcore/include/version.h
new file mode 100755
index 0000000..a0696ad
--- /dev/null
+++ b/rtkbt/code/bt/btcore/include/version.h
@@ -0,0 +1,29 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+#include <stdint.h>
+
+typedef struct {
+  uint8_t hci_version;
+  uint16_t hci_revision;
+  uint8_t lmp_version;
+  uint16_t manufacturer;
+  uint16_t lmp_subversion;
+} bt_version_t;
diff --git a/rtkbt/code/bt/btcore/src/bdaddr.c b/rtkbt/code/bt/btcore/src/bdaddr.c
new file mode 100755
index 0000000..ddbd9d3
--- /dev/null
+++ b/rtkbt/code/bt/btcore/src/bdaddr.c
@@ -0,0 +1,101 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#include <assert.h>
+#include <ctype.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "btcore/include/bdaddr.h"
+
+bool bdaddr_is_empty(const bt_bdaddr_t *addr) {
+  assert(addr != NULL);
+
+  uint8_t zero[sizeof(bt_bdaddr_t)] = { 0 };
+  return memcmp(addr, &zero, sizeof(bt_bdaddr_t)) == 0;
+}
+
+bool bdaddr_equals(const bt_bdaddr_t *first, const bt_bdaddr_t *second) {
+  assert(first != NULL);
+  assert(second != NULL);
+
+  return memcmp(first, second, sizeof(bt_bdaddr_t)) == 0;
+}
+
+bt_bdaddr_t *bdaddr_copy(bt_bdaddr_t *dest, const bt_bdaddr_t *src) {
+  assert(dest != NULL);
+  assert(src != NULL);
+
+  return (bt_bdaddr_t *)memcpy(dest, src, sizeof(bt_bdaddr_t));
+}
+
+const char *bdaddr_to_string(const bt_bdaddr_t *addr, char *string, size_t size) {
+  assert(addr != NULL);
+  assert(string != NULL);
+
+  if (size < 18)
+    return NULL;
+
+  const uint8_t *ptr = addr->address;
+  sprintf(string, "%02x:%02x:%02x:%02x:%02x:%02x",
+           ptr[0], ptr[1], ptr[2],
+           ptr[3], ptr[4], ptr[5]);
+  return string;
+}
+
+bool string_is_bdaddr(const char *string) {
+  assert(string != NULL);
+
+  size_t len = strlen(string);
+  if (len != 17)
+    return false;
+
+  for (size_t i = 0; i < len; ++i) {
+    // Every 3rd char must be ':'.
+    if (((i + 1) % 3) == 0 && string[i] != ':')
+      return false;
+
+    // All other chars must be a hex digit.
+    if (((i + 1) % 3) != 0 && !isxdigit(string[i]))
+      return false;
+  }
+  return true;
+}
+
+bool string_to_bdaddr(const char *string, bt_bdaddr_t *addr) {
+  assert(string != NULL);
+  assert(addr != NULL);
+
+  bt_bdaddr_t new_addr;
+  uint8_t *ptr = new_addr.address;
+  bool ret = sscanf(string, "%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx",
+      &ptr[0], &ptr[1], &ptr[2], &ptr[3], &ptr[4], &ptr[5]) == 6;
+
+  if (ret)
+    memcpy(addr, &new_addr, sizeof(bt_bdaddr_t));
+
+  return ret;
+}
+
+hash_index_t hash_function_bdaddr(const void *key) {
+  hash_index_t hash = 5381;
+  const char *bytes = (const char *)key;
+  for (size_t i = 0; i < sizeof(bt_bdaddr_t); ++i)
+    hash = ((hash << 5) + hash) + bytes[i];
+  return hash;
+}
diff --git a/rtkbt/code/bt/btcore/src/device_class.c b/rtkbt/code/bt/btcore/src/device_class.c
new file mode 100755
index 0000000..6a72ed1
--- /dev/null
+++ b/rtkbt/code/bt/btcore/src/device_class.c
@@ -0,0 +1,158 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#include <arpa/inet.h>
+#include <assert.h>
+#include <string.h>
+
+#include "btcore/include/device_class.h"
+#include "osi/include/osi.h"
+
+typedef struct _bt_device_class_t {
+  uint32_t unused : 2;          // LSBs
+  uint32_t minor_device : 6;
+  uint32_t major_device : 5;
+  uint32_t major_service : 11;  // MSBs
+} __attribute__ ((__packed__)) _bt_device_class_t;
+
+// Convenience to interpret raw device class bytes.
+#define DC(x) ((_bt_device_class_t *)x)
+
+// Ensure the internal device class implementation and public one
+// have equal size.
+COMPILE_ASSERT(sizeof(_bt_device_class_t) == sizeof(bt_device_class_t));
+
+// [Major Service Classes](https://www.bluetooth.org/en-us/specification/assigned-numbers/baseband)
+enum {
+  DC_LIMITED_DISCOVERABLE_MODE = 0x0001,
+  DC_RESERVED14 = 0x0002,
+  DC_RESERVED15 = 0x0004,
+  DC_POSITIONING = 0x0008,
+  DC_NETWORKING = 0x0010,
+  DC_RENDERING = 0x0020,
+  DC_CAPTURING = 0x0040,
+  DC_OBJECT_TRANSFER = 0x0080,
+  DC_AUDIO = 0x0100,
+  DC_TELEPHONY = 0x0200,
+  DC_INFORMATION = 0x0400,
+};
+
+static bool device_class_get_major_service_(const bt_device_class_t *dc, int bitmask);
+static void device_class_clr_major_service_(bt_device_class_t *dc, int bitmask);
+static void device_class_set_major_service_(bt_device_class_t *dc, int bitmask);
+
+void device_class_from_stream(bt_device_class_t *dc, const uint8_t *data) {
+  assert(dc != NULL);
+  assert(data != NULL);
+  *dc = *(bt_device_class_t *)data;
+}
+
+int device_class_to_stream(const bt_device_class_t *dc, uint8_t *data, size_t len) {
+  assert(dc != NULL);
+  assert(data != NULL);
+  assert(len >= sizeof(bt_device_class_t));
+  for (size_t i = 0; i < sizeof(bt_device_class_t); ++i) {
+    data[i] = dc->_[i];
+  }
+  return sizeof(bt_device_class_t);
+}
+
+void device_class_from_int(bt_device_class_t *dc, int data) {
+  assert(dc != NULL);
+  assert(data != 0);
+  // Careful with endianess.
+  dc->_[0] = data & 0xff;
+  dc->_[1] = (data >> 8) & 0xff;
+  dc->_[2] = (data >> 16) & 0xff;
+}
+
+int device_class_to_int(const bt_device_class_t *dc) {
+  assert(dc != NULL);
+  // Careful with endianess.
+  return (int)(le32toh(*(int*)dc) & 0xffffff);
+}
+
+bool device_class_equals(const bt_device_class_t *p1, const bt_device_class_t *p2) {
+  assert(p1 != NULL);
+  assert(p2 != NULL);
+  return (memcmp(p1, p2, sizeof(bt_device_class_t)) == 0);
+}
+
+bool device_class_copy(bt_device_class_t *dest, const bt_device_class_t *src) {
+  assert(dest != NULL);
+  assert(src != NULL);
+  return (memcpy(dest, src, sizeof(bt_device_class_t)) == dest);
+}
+
+int device_class_get_major_device(const bt_device_class_t *dc) {
+  assert(dc != NULL);
+  return DC(dc)->major_device;
+}
+
+void device_class_set_major_device(bt_device_class_t *dc, int val) {
+  assert(dc != NULL);
+  DC(dc)->major_device = val;
+}
+
+int device_class_get_minor_device(const bt_device_class_t *dc) {
+  assert(dc != NULL);
+  return DC(dc)->minor_device;
+}
+
+void device_class_set_minor_device(bt_device_class_t *dc, int val) {
+  assert(dc != NULL);
+  DC(dc)->minor_device = val;
+}
+
+bool device_class_get_information(const bt_device_class_t *dc) {
+  assert(dc != NULL);
+  return device_class_get_major_service_(dc, DC_INFORMATION);
+}
+
+void device_class_set_information(bt_device_class_t *dc, bool set) {
+  assert(dc != NULL);
+  if (set)
+    device_class_set_major_service_(dc, DC_INFORMATION);
+  else
+    device_class_clr_major_service_(dc, DC_INFORMATION);
+}
+
+bool device_class_get_limited(const bt_device_class_t *dc) {
+  assert(dc != NULL);
+  return device_class_get_major_service_(dc, DC_LIMITED_DISCOVERABLE_MODE);
+}
+
+void device_class_set_limited(bt_device_class_t *dc, bool set) {
+  assert(dc != NULL);
+  if (set)
+    device_class_set_major_service_(dc, DC_LIMITED_DISCOVERABLE_MODE);
+  else
+    device_class_clr_major_service_(dc, DC_LIMITED_DISCOVERABLE_MODE);
+}
+
+static bool device_class_get_major_service_(const bt_device_class_t *dc, int bitmask) {
+  return (DC(dc)->major_service & bitmask);
+}
+
+static void device_class_clr_major_service_(bt_device_class_t *dc, int bitmask) {
+  DC(dc)->major_service &= ~bitmask;
+}
+
+static void device_class_set_major_service_(bt_device_class_t *dc, int bitmask) {
+  DC(dc)->major_service |= bitmask;
+}
diff --git a/rtkbt/code/bt/btcore/src/hal_util.c b/rtkbt/code/bt/btcore/src/hal_util.c
new file mode 100755
index 0000000..74bf1b9
--- /dev/null
+++ b/rtkbt/code/bt/btcore/src/hal_util.c
@@ -0,0 +1,92 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#define LOG_TAG "hal_util"
+
+#include <hardware/bluetooth.h>
+#include <hardware/hardware.h>
+
+#include <dlfcn.h>
+#include <errno.h>
+#include <string.h>
+
+#include "btcore/include/hal_util.h"
+#include "osi/include/log.h"
+
+#if defined(OS_GENERIC)
+
+// TODO(armansito): All logging macros should include __func__ by default (see
+// Bug: 22671731)
+#define HULOGERR(fmt, args...) \
+    LOG_ERROR(LOG_TAG, "[%s] failed to load the Bluetooth library: " fmt, \
+              __func__, ## args)
+
+// TODO(armansito): It might be better to pass the library name in a more
+// generic manner as opposed to hard-coding it here.
+static const char kBluetoothLibraryName[] = "libbluetooth.default.so";
+
+static int load_bt_library(const struct hw_module_t **module) {
+  const char *id = BT_STACK_RTK_MODULE_ID;
+
+  // Always try to load the default Bluetooth stack on GN builds.
+  void *handle = dlopen(kBluetoothLibraryName, RTLD_NOW);
+  if (!handle) {
+    char const *err_str = dlerror();
+    HULOGERR("%s", err_str ? err_str : "error unknown");
+    goto error;
+  }
+
+  // Get the address of the struct hal_module_info.
+  const char *sym = HAL_MODULE_INFO_SYM_AS_STR;
+  struct hw_module_t *hmi = (struct hw_module_t *)dlsym(handle, sym);
+  if (!hmi) {
+    HULOGERR("%s", sym);
+    goto error;
+  }
+
+  // Check that the id matches.
+  if (strcmp(id, hmi->id) != 0) {
+    HULOGERR("id=%s does not match HAL module ID: %s", id, hmi->id);
+    goto error;
+  }
+
+  hmi->dso = handle;
+
+  // Success.
+  LOG_INFO(
+      LOG_TAG, "[%s] loaded HAL id=%s path=%s hmi=%p handle=%p",
+      __func__, id, kBluetoothLibraryName, hmi, handle);
+
+  *module = hmi;
+  return 0;
+
+error:
+  *module = NULL;
+  if (handle)
+    dlclose(handle);
+
+  return -EINVAL;
+}
+
+#endif  // defined(OS_GENERIC)
+
+int hal_util_load_bt_library(const struct hw_module_t **module) {
+#if defined(OS_GENERIC)
+  return load_bt_library(module);
+#else  // !defined(OS_GENERIC)
+  return hw_get_module(BT_STACK_RTK_MODULE_ID, module);
+#endif  // defined(OS_GENERIC)
+}
diff --git a/rtkbt/code/bt/btcore/src/module.c b/rtkbt/code/bt/btcore/src/module.c
new file mode 100755
index 0000000..07b3dd0
--- /dev/null
+++ b/rtkbt/code/bt/btcore/src/module.c
@@ -0,0 +1,245 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_core_module"
+
+#include <assert.h>
+#include <dlfcn.h>
+#include <pthread.h>
+#include <string.h>
+
+#include "btcore/include/module.h"
+#include "osi/include/allocator.h"
+#include "osi/include/hash_functions.h"
+#include "osi/include/hash_map.h"
+#include "osi/include/log.h"
+#include "osi/include/osi.h"
+
+typedef enum {
+  MODULE_STATE_NONE = 0,
+  MODULE_STATE_INITIALIZED = 1,
+  MODULE_STATE_STARTED = 2
+} module_state_t;
+
+static const size_t number_of_metadata_buckets = 42;
+static hash_map_t *metadata;
+// Include this lock for now for correctness, while the startup sequence is being refactored
+static pthread_mutex_t metadata_lock;
+
+static bool call_lifecycle_function(module_lifecycle_fn function);
+static module_state_t get_module_state(const module_t *module);
+static void set_module_state(const module_t *module, module_state_t state);
+
+void module_management_start(void) {
+  metadata = hash_map_new(
+    number_of_metadata_buckets,
+    hash_function_pointer,
+    NULL,
+    osi_free,
+    NULL
+  );
+
+  pthread_mutex_init(&metadata_lock, NULL);
+}
+
+void module_management_stop(void) {
+  if (!metadata)
+    return;
+
+  hash_map_free(metadata);
+  metadata = NULL;
+
+  pthread_mutex_destroy(&metadata_lock);
+}
+
+const module_t *get_module(const char *name) {
+  module_t* module = (module_t *)dlsym(RTLD_DEFAULT, name);
+  assert(module);
+  return module;
+}
+
+bool module_init(const module_t *module) {
+  assert(metadata != NULL);
+  assert(module != NULL);
+  assert(get_module_state(module) == MODULE_STATE_NONE);
+
+  LOG_INFO(LOG_TAG, "%s Initializing module \"%s\"", __func__, module->name);
+  if (!call_lifecycle_function(module->init)) {
+    LOG_ERROR(LOG_TAG, "%s Failed to initialize module \"%s\"",
+              __func__, module->name);
+    return false;
+  }
+  LOG_INFO(LOG_TAG, "%s Initialized module \"%s\"", __func__, module->name);
+
+  set_module_state(module, MODULE_STATE_INITIALIZED);
+  return true;
+}
+
+bool module_start_up(const module_t *module) {
+  assert(metadata != NULL);
+  assert(module != NULL);
+  // TODO(zachoverflow): remove module->init check once automagic order/call is in place.
+  // This hack is here so modules which don't require init don't have to have useless calls
+  // as we're converting the startup sequence.
+  assert(get_module_state(module) == MODULE_STATE_INITIALIZED || module->init == NULL);
+
+  LOG_INFO(LOG_TAG, "%s Starting module \"%s\"", __func__, module->name);
+  if (!call_lifecycle_function(module->start_up)) {
+    LOG_ERROR(LOG_TAG, "%s Failed to start up module \"%s\"",
+              __func__, module->name);
+    return false;
+  }
+  LOG_INFO(LOG_TAG, "%s Started module \"%s\"", __func__, module->name);
+
+  set_module_state(module, MODULE_STATE_STARTED);
+  return true;
+}
+
+void module_shut_down(const module_t *module) {
+  assert(metadata != NULL);
+  assert(module != NULL);
+  module_state_t state = get_module_state(module);
+  assert(state <= MODULE_STATE_STARTED);
+
+  // Only something to do if the module was actually started
+  if (state < MODULE_STATE_STARTED)
+    return;
+
+  LOG_INFO(LOG_TAG, "%s Shutting down module \"%s\"", __func__, module->name);
+  if (!call_lifecycle_function(module->shut_down)) {
+    LOG_ERROR(LOG_TAG, "%s Failed to shutdown module \"%s\". Continuing anyway.",
+              __func__, module->name);
+  }
+  LOG_INFO(LOG_TAG, "%s Shutdown of module \"%s\" completed",
+           __func__, module->name);
+
+  set_module_state(module, MODULE_STATE_INITIALIZED);
+}
+
+void module_clean_up(const module_t *module) {
+  assert(metadata != NULL);
+  assert(module != NULL);
+  module_state_t state = get_module_state(module);
+  assert(state <= MODULE_STATE_INITIALIZED);
+
+  // Only something to do if the module was actually initialized
+  if (state < MODULE_STATE_INITIALIZED)
+    return;
+
+  LOG_INFO(LOG_TAG, "%s Cleaning up module \"%s\"", __func__, module->name);
+  if (!call_lifecycle_function(module->clean_up)) {
+    LOG_ERROR(LOG_TAG, "%s Failed to cleanup module \"%s\". Continuing anyway.",
+              __func__, module->name);
+  }
+  LOG_INFO(LOG_TAG, "%s Cleanup of module \"%s\" completed",
+           __func__, module->name);
+
+  set_module_state(module, MODULE_STATE_NONE);
+}
+
+static bool call_lifecycle_function(module_lifecycle_fn function) {
+  // A NULL lifecycle function means it isn't needed, so assume success
+  if (!function)
+    return true;
+
+  future_t *future = function();
+
+  // A NULL future means synchronous success
+  if (!future)
+    return true;
+
+  // Otherwise fall back to the future
+  return future_await(future);
+}
+
+static module_state_t get_module_state(const module_t *module) {
+  pthread_mutex_lock(&metadata_lock);
+  module_state_t *state_ptr = hash_map_get(metadata, module);
+  pthread_mutex_unlock(&metadata_lock);
+
+  return state_ptr ? *state_ptr : MODULE_STATE_NONE;
+}
+
+static void set_module_state(const module_t *module, module_state_t state) {
+  pthread_mutex_lock(&metadata_lock);
+
+  module_state_t *state_ptr = hash_map_get(metadata, module);
+  if (!state_ptr) {
+    state_ptr = osi_malloc(sizeof(module_state_t));
+    hash_map_set(metadata, module, state_ptr);
+  }
+
+  pthread_mutex_unlock(&metadata_lock);
+
+  *state_ptr = state;
+}
+
+// TODO(zachoverflow): remove when everything modulized
+// Temporary callback-wrapper-related code
+
+typedef struct {
+  const module_t *module;
+  thread_t *lifecycle_thread;
+  thread_t *callback_thread; // we don't own this thread
+  thread_fn callback;
+  bool success;
+} callbacked_wrapper_t;
+
+static void run_wrapped_start_up(void *context);
+static void post_result_to_callback(void *context);
+
+void module_start_up_callbacked_wrapper(
+    const module_t *module,
+    thread_t *callback_thread,
+    thread_fn callback) {
+  callbacked_wrapper_t *wrapper = osi_calloc(sizeof(callbacked_wrapper_t));
+
+  wrapper->module = module;
+  wrapper->lifecycle_thread = thread_new("module_wrapper");
+  wrapper->callback_thread = callback_thread;
+  wrapper->callback = callback;
+
+  // Run the actual module start up
+  thread_post(wrapper->lifecycle_thread, run_wrapped_start_up, wrapper);
+}
+
+static void run_wrapped_start_up(void *context) {
+  assert(context);
+
+  callbacked_wrapper_t *wrapper = context;
+  wrapper->success = module_start_up(wrapper->module);
+
+  // Post the result back to the callback
+  thread_post(wrapper->callback_thread, post_result_to_callback, wrapper);
+}
+
+static void post_result_to_callback(void *context) {
+  assert(context);
+
+  callbacked_wrapper_t *wrapper = context;
+
+  // Save the values we need for callback
+  void *result = wrapper->success ? FUTURE_SUCCESS : FUTURE_FAIL;
+  thread_fn callback = wrapper->callback;
+
+  // Clean up the resources we used
+  thread_free(wrapper->lifecycle_thread);
+  osi_free(wrapper);
+
+  callback(result);
+}
diff --git a/rtkbt/code/bt/btcore/src/osi_module.c b/rtkbt/code/bt/btcore/src/osi_module.c
new file mode 100755
index 0000000..e7a580d
--- /dev/null
+++ b/rtkbt/code/bt/btcore/src/osi_module.c
@@ -0,0 +1,49 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2015 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_osi_module"
+
+#include "btcore/include/module.h"
+#include "btcore/include/osi_module.h"
+#include "osi/include/alarm.h"
+#include "osi/include/future.h"
+#include "osi/include/log.h"
+#include "osi/include/mutex.h"
+#include "osi/include/osi.h"
+#include "osi/include/wakelock.h"
+
+future_t *osi_init(void) {
+  mutex_init();
+  return future_new_immediate(FUTURE_SUCCESS);
+}
+
+future_t *osi_clean_up(void) {
+  alarm_cleanup();
+  wakelock_cleanup();
+  mutex_cleanup();
+  return future_new_immediate(FUTURE_SUCCESS);
+}
+
+EXPORT_SYMBOL const module_t osi_module = {
+  .name = OSI_MODULE,
+  .init = osi_init,
+  .start_up = NULL,
+  .shut_down = NULL,
+  .clean_up = osi_clean_up,
+  .dependencies = {NULL}
+};
diff --git a/rtkbt/code/bt/btcore/src/property.c b/rtkbt/code/bt/btcore/src/property.c
new file mode 100755
index 0000000..23cad19
--- /dev/null
+++ b/rtkbt/code/bt/btcore/src/property.c
@@ -0,0 +1,218 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#include <assert.h>
+#include <string.h>
+#include "btcore/include/bdaddr.h"
+#include "btcore/include/device_class.h"
+#include "btcore/include/property.h"
+#include "btcore/include/uuid.h"
+#include "osi/include/allocator.h"
+
+static bt_property_t *property_new_(void *val, size_t len, bt_property_type_t type);
+
+bt_property_t *property_copy_array(const bt_property_t *properties, size_t count) {
+  assert(properties != NULL);
+  bt_property_t *clone = osi_calloc(sizeof(bt_property_t) * count);
+
+  memcpy(&clone[0], &properties[0], sizeof(bt_property_t) * count);
+  for (size_t i = 0; i < count; ++i) {
+    clone[i].val = osi_calloc(clone[i].len);
+    memcpy(clone[i].val, properties[i].val, clone[i].len);
+  }
+
+  return clone;
+}
+
+bt_property_t *property_copy(bt_property_t *dest, const bt_property_t *src) {
+  assert(dest != NULL);
+  assert(src != NULL);
+  return (bt_property_t *)memcpy(dest, src, sizeof(bt_property_t));
+}
+
+bool property_equals(const bt_property_t *p1, const bt_property_t *p2) {
+  // Two null properties are not the same. May need to revisit that
+  // decision when we have a test case that exercises that condition.
+  if (!p1 || !p2 || p1->type != p2->type) {
+    return false;
+  }
+
+  // Although the Bluetooth name is a 249-byte array, the implementation
+  // treats it like a variable-length array with its size specified in the
+  // property's `len` field. We special-case the equivalence of BDNAME
+  // types here by truncating the larger, zero-padded name to its string
+  // length and comparing against the shorter name.
+  //
+  // Note: it may be the case that both strings are zero-padded but that
+  // hasn't come up yet so this implementation doesn't handle it.
+  if (p1->type == BT_PROPERTY_BDNAME && p1->len != p2->len) {
+    const bt_property_t *shorter = p1, *longer = p2;
+    if (p1->len > p2->len) {
+      shorter = p2;
+      longer = p1;
+    }
+    return strlen((const char *)longer->val) == (size_t)shorter->len && !memcmp(longer->val, shorter->val, shorter->len);
+  }
+
+  return p1->len == p2->len && !memcmp(p1->val, p2->val, p1->len);
+}
+
+bt_property_t *property_new_addr(const bt_bdaddr_t *addr) {
+  assert(addr != NULL);
+  return property_new_((void *)addr, sizeof(bt_bdaddr_t), BT_PROPERTY_BDADDR);
+}
+
+bt_property_t *property_new_device_class(const bt_device_class_t *dc) {
+  assert(dc != NULL);
+  return property_new_((void *)dc, sizeof(bt_device_class_t), BT_PROPERTY_CLASS_OF_DEVICE);
+}
+
+bt_property_t *property_new_device_type(bt_device_type_t type) {
+  return property_new_((void *)&type, sizeof(bt_device_type_t), BT_PROPERTY_TYPE_OF_DEVICE);
+}
+
+bt_property_t *property_new_discovery_timeout(const uint32_t timeout) {
+  return property_new_((void *)&timeout, sizeof(uint32_t), BT_PROPERTY_ADAPTER_DISCOVERY_TIMEOUT);
+}
+
+bt_property_t *property_new_name(const char *name) {
+  assert(name != NULL);
+  return property_new_((void *)name, sizeof(bt_bdname_t), BT_PROPERTY_BDNAME);
+}
+
+bt_property_t *property_new_rssi(int8_t rssi) {
+  return property_new_((void *)&rssi, sizeof(int8_t), BT_PROPERTY_REMOTE_RSSI);
+}
+
+bt_property_t *property_new_scan_mode(bt_scan_mode_t scan_mode) {
+  return property_new_((void *)&scan_mode, sizeof(bt_scan_mode_t), BT_PROPERTY_ADAPTER_SCAN_MODE);
+}
+
+bt_property_t *property_new_uuids(const bt_uuid_t *uuid, size_t count) {
+  assert(uuid != NULL);
+  return property_new_((void *)uuid, sizeof(bt_uuid_t) * count, BT_PROPERTY_UUIDS);
+}
+
+void property_free(bt_property_t *property) {
+  property_free_array(property, 1);
+}
+
+void property_free_array(bt_property_t *properties, size_t count) {
+  if (properties == NULL)
+    return;
+
+  for (size_t i = 0; i < count; ++i) {
+    osi_free(properties[i].val);
+  }
+
+  osi_free(properties);
+}
+
+bool property_is_addr(const bt_property_t *property) {
+  assert(property != NULL);
+  return property->type == BT_PROPERTY_BDADDR;
+}
+
+bool property_is_device_class(const bt_property_t *property) {
+  assert(property != NULL);
+  return property->type == BT_PROPERTY_CLASS_OF_DEVICE;
+}
+
+bool property_is_device_type(const bt_property_t *property) {
+  assert(property != NULL);
+  return property->type == BT_PROPERTY_TYPE_OF_DEVICE;
+}
+
+bool property_is_discovery_timeout(const bt_property_t *property) {
+  assert(property != NULL);
+  return property->type == BT_PROPERTY_ADAPTER_DISCOVERY_TIMEOUT;
+}
+
+bool property_is_name(const bt_property_t *property) {
+  assert(property != NULL);
+  return property->type == BT_PROPERTY_BDNAME;
+}
+
+bool property_is_rssi(const bt_property_t *property) {
+  assert(property != NULL);
+  return property->type == BT_PROPERTY_REMOTE_RSSI;
+}
+
+bool property_is_scan_mode(const bt_property_t *property) {
+  assert(property != NULL);
+  return property->type == BT_PROPERTY_ADAPTER_SCAN_MODE;
+}
+
+bool property_is_uuids(const bt_property_t *property) {
+  assert(property != NULL);
+  return property->type == BT_PROPERTY_UUIDS;
+}
+
+// Convenience conversion methods to property values
+const bt_bdaddr_t *property_as_addr(const bt_property_t *property) {
+  assert(property_is_addr(property));
+  return (const bt_bdaddr_t *)property->val;
+}
+
+const bt_device_class_t *property_as_device_class(const bt_property_t *property) {
+  assert(property_is_device_class(property));
+  return (const bt_device_class_t *)property->val;
+}
+
+bt_device_type_t property_as_device_type(const bt_property_t *property) {
+  assert(property_is_device_type(property));
+  return *(const bt_device_type_t *)property->val;
+}
+
+uint32_t property_as_discovery_timeout(const bt_property_t *property) {
+  assert(property_is_discovery_timeout(property));
+  return *(const uint32_t *)property->val;
+}
+
+const bt_bdname_t *property_as_name(const bt_property_t *property) {
+  assert(property_is_name(property));
+  return (const bt_bdname_t *)property->val;
+}
+
+int8_t property_as_rssi(const bt_property_t *property) {
+  assert(property_is_rssi(property));
+  return *(const int8_t *)property->val;
+}
+
+bt_scan_mode_t property_as_scan_mode(const bt_property_t *property) {
+  assert(property_is_scan_mode(property));
+  return *(const bt_scan_mode_t *)property->val;
+}
+
+const bt_uuid_t *property_as_uuids(const bt_property_t *property, size_t *count) {
+  assert(property_is_uuids(property));
+  *count = sizeof(bt_uuid_t) / property->len;
+  return (const bt_uuid_t *)property->val;
+}
+
+static bt_property_t *property_new_(void *val, size_t len, bt_property_type_t type) {
+  bt_property_t *property = osi_calloc(sizeof(bt_property_t));
+
+  property->val = osi_malloc(len);
+  memcpy(property->val, val, len);
+
+  property->type = type;
+  property->len = len;
+
+  return property;
+}
diff --git a/rtkbt/code/bt/btcore/src/uuid.c b/rtkbt/code/bt/btcore/src/uuid.c
new file mode 100755
index 0000000..a860147
--- /dev/null
+++ b/rtkbt/code/bt/btcore/src/uuid.c
@@ -0,0 +1,164 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "btcore/include/uuid.h"
+#include "osi/include/allocator.h"
+
+static const size_t UUID_WELL_FORMED_STRING_LEN = 36;
+static const size_t UUID_WELL_FORMED_STRING_LEN_WITH_NULL = 36 + 1;
+
+typedef struct uuid_string_t {
+  char string[0];
+} uuid_string_t;
+
+static const bt_uuid_t empty_uuid = {{ 0 }};
+
+// The base UUID is used for calculating 128-bit UUIDs from 16 and
+// 32 bit UUIDs as described in the SDP specification.
+static const bt_uuid_t base_uuid = {
+  { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00,
+    0x80, 0x00, 0x00, 0x80, 0x5f, 0x9b, 0x34, 0xfb, }};
+
+static bool uuid_is_base(const bt_uuid_t *uuid);
+
+uuid_string_t *uuid_string_new(void) {
+  return osi_calloc(UUID_WELL_FORMED_STRING_LEN_WITH_NULL);
+}
+
+void uuid_string_free(uuid_string_t *uuid_string) {
+  osi_free(uuid_string);
+}
+
+const char *uuid_string_data(const uuid_string_t *uuid_string) {
+  assert(uuid_string != NULL);
+  return (const char *)uuid_string->string;
+}
+
+bt_uuid_t *uuid_new(const char *uuid_string) {
+  assert(uuid_string != NULL);
+
+  if (strlen(uuid_string) < UUID_WELL_FORMED_STRING_LEN)
+    return NULL;
+  if (uuid_string[8] != '-' || uuid_string[13] != '-' || uuid_string[18] != '-' || uuid_string[23] != '-')
+    return NULL;
+
+  bt_uuid_t *uuid = osi_calloc(sizeof(bt_uuid_t));
+
+  const char *s = uuid_string;
+  for (size_t i = 0; i < sizeof(bt_uuid_t); ++i, s+=2) {
+    char buf[3] = {0};
+    buf[0] = s[0];
+    buf[1] = s[1];
+    uuid->uu[i] = strtoul(buf, NULL, 16);
+    // Adjust by skipping the dashes
+    switch(i) {
+      case 3:
+      case 5:
+      case 7:
+      case 9:
+        s++;
+        break;
+    }
+  }
+  return uuid;
+}
+
+void uuid_free(bt_uuid_t *uuid) {
+  osi_free(uuid);
+}
+
+bool uuid_is_empty(const bt_uuid_t *uuid) {
+  return !uuid || !memcmp(uuid, &empty_uuid, sizeof(bt_uuid_t));
+}
+
+bool uuid_is_equal(const bt_uuid_t *first, const bt_uuid_t *second) {
+  assert(first != NULL);
+  assert(second != NULL);
+  return !memcmp(first, second, sizeof(bt_uuid_t));
+}
+
+bt_uuid_t *uuid_copy(bt_uuid_t *dest, const bt_uuid_t *src) {
+  assert(dest != NULL);
+  assert(src != NULL);
+  return (bt_uuid_t *)memcpy(dest, src, sizeof(bt_uuid_t));
+}
+
+bool uuid_128_to_16(const bt_uuid_t *uuid, uint16_t *uuid16) {
+  assert(uuid != NULL);
+  assert(uuid16 != NULL);
+
+  if (!uuid_is_base(uuid))
+    return false;
+
+  *uuid16 = (uuid->uu[2] << 8) + uuid->uu[3];
+  return true;
+}
+
+bool uuid_128_to_32(const bt_uuid_t *uuid, uint32_t *uuid32) {
+  assert(uuid != NULL);
+  assert(uuid32 != NULL);
+
+  if (!uuid_is_base(uuid))
+    return false;
+
+  *uuid32 = (uuid->uu[0] << 24) + (uuid->uu[1] << 16) + (uuid->uu[2] << 8) + uuid->uu[3];
+  return true;
+}
+
+void uuid_to_string(const bt_uuid_t *uuid, uuid_string_t *uuid_string) {
+  assert(uuid != NULL);
+  assert(uuid_string != NULL);
+
+  char *string = uuid_string->string;
+
+  for (int i = 0; i < 4; i++) {
+    string += sprintf(string, "%02x", uuid->uu[i]);
+  }
+  string += sprintf(string, "-");
+  for (int i = 4; i < 6; i++) {
+    string += sprintf(string, "%02x", uuid->uu[i]);
+  }
+  string += sprintf(string, "-");
+  for (int i = 6; i < 8; i++) {
+    string += sprintf(string, "%02x", uuid->uu[i]);
+  }
+  string += sprintf(string, "-");
+  for (int i = 8; i < 10; i++) {
+    string += sprintf(string, "%02x", uuid->uu[i]);
+  }
+  string += sprintf(string, "-");
+  for (int i = 10; i < 16; i++) {
+    string += sprintf(string, "%02x", uuid->uu[i]);
+  }
+}
+
+static bool uuid_is_base(const bt_uuid_t *uuid) {
+  if (!uuid)
+    return false;
+
+  for (int i = 4; i < 16; i++) {
+    if (uuid->uu[i] != base_uuid.uu[i])
+      return false;
+  }
+  return true;
+}
diff --git a/rtkbt/code/bt/btcore/test/bdaddr_test.cpp b/rtkbt/code/bt/btcore/test/bdaddr_test.cpp
new file mode 100755
index 0000000..1e7918e
--- /dev/null
+++ b/rtkbt/code/bt/btcore/test/bdaddr_test.cpp
@@ -0,0 +1,48 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#include <gtest/gtest.h>
+
+extern "C" {
+#include "btcore/include/bdaddr.h"
+}
+
+TEST(HashFunctionBdaddrTest, test_same_pointer_is_same) {
+  bt_bdaddr_t test_address;
+  string_to_bdaddr("12:34:56:78:9A:BC", &test_address);
+
+  EXPECT_EQ(hash_function_bdaddr(&test_address), hash_function_bdaddr(&test_address));
+}
+
+TEST(HashFunctionBdaddrTest, test_same_value_is_same) {
+  bt_bdaddr_t test_address0;
+  bt_bdaddr_t test_address1;
+  string_to_bdaddr("12:34:56:78:9A:BC", &test_address0);
+  string_to_bdaddr("12:34:56:78:9A:BC", &test_address1);
+
+  EXPECT_EQ(hash_function_bdaddr(&test_address0), hash_function_bdaddr(&test_address1));
+}
+
+TEST(HashFunctionBdaddrTest, test_different_value_is_different) {
+  bt_bdaddr_t test_address0;
+  bt_bdaddr_t test_address1;
+  string_to_bdaddr("12:34:56:78:9A:BC", &test_address0);
+  string_to_bdaddr("43:56:21:78:9A:BC", &test_address1);
+
+  EXPECT_NE(hash_function_bdaddr(&test_address0), hash_function_bdaddr(&test_address1));
+}
diff --git a/rtkbt/code/bt/btcore/test/device_class_test.cpp b/rtkbt/code/bt/btcore/test/device_class_test.cpp
new file mode 100755
index 0000000..c3098a2
--- /dev/null
+++ b/rtkbt/code/bt/btcore/test/device_class_test.cpp
@@ -0,0 +1,220 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#include <arpa/inet.h>
+#include <gtest/gtest.h>
+#include "osi/test/AllocationTestHarness.h"
+
+extern "C" {
+#include "btcore/include/device_class.h"
+}  // "C"
+
+// Device Class is 3 bytes.
+static const int DC_MASK = 0xffffff;
+
+::testing::AssertionResult check_bitfield(const char *m_expr,
+    const char *n_expr, int m, int n) {
+  if (m == n)
+    return ::testing::AssertionSuccess();
+
+  std::stringstream ss;
+
+  ss.str("");
+  ss << std::showbase << std::hex << std::setw(8) << std::setfill('0') << m;
+  std::string expected_str = ss.str();
+
+  ss.str("");
+  ss << std::showbase << std::hex << std::setw(8) << std::setfill('0') << n;
+  std::string actual_str = ss.str();
+
+  return ::testing::AssertionFailure() << m_expr << " and " << n_expr
+    << " ( " << expected_str << " vs " << actual_str << " )";
+}
+
+class DeviceClassTest : public AllocationTestHarness {};
+
+TEST_F(DeviceClassTest, cod_sizeof) {
+  uint8_t dc_stream[] = { 0x00, 0x00, 0x00, 0x00};
+  bt_device_class_t dc0;
+  device_class_from_stream(&dc0, dc_stream);
+  EXPECT_EQ((size_t)3, sizeof(dc0));
+}
+
+TEST_F(DeviceClassTest, simple) {
+  uint8_t dc_stream[][sizeof(bt_device_class_t)] = {
+    { 0x00, 0x00, 0x00 },
+    { 0xff, 0xff, 0xff },
+    { 0xaa, 0x55, 0xaa },
+    { 0x01, 0x23, 0x45 },
+    { 0x20, 0x07, 0x14 },
+  };
+
+  for (size_t i = 0; i < sizeof(dc_stream)/sizeof(bt_device_class_t); i++) {
+    bt_device_class_t dc;
+    device_class_from_stream(&dc, (uint8_t*)&dc_stream[i]);
+
+    uint8_t *to_stream = (uint8_t *)&dc;
+    EXPECT_PRED_FORMAT2(check_bitfield, (unsigned)dc_stream[i][0], to_stream[0]);
+    EXPECT_PRED_FORMAT2(check_bitfield, (unsigned)dc_stream[i][1], to_stream[1]);
+    EXPECT_PRED_FORMAT2(check_bitfield, (unsigned)dc_stream[i][2], to_stream[2]);
+  }
+}
+
+TEST_F(DeviceClassTest, to_stream) {
+  {
+    bt_device_class_t dc;
+
+    uint8_t dc_stream0[] = { 0x00, 0x00, 0x00, 0xaa };
+    device_class_from_stream(&dc, dc_stream0);
+
+    uint8_t dc_stream1[] = { 0x00, 0x00, 0x00, 0x00 };
+    int rc = device_class_to_stream(&dc, dc_stream1, sizeof(dc_stream1));
+    EXPECT_EQ(3, rc);
+
+    uint32_t *val = (uint32_t *)&dc;
+    EXPECT_PRED_FORMAT2(check_bitfield, 0x00000000, *val & 0xffffff);
+
+    EXPECT_PRED_FORMAT2(check_bitfield, 0x00, dc_stream1[0]);
+    EXPECT_PRED_FORMAT2(check_bitfield, 0x00, dc_stream1[1]);
+    EXPECT_PRED_FORMAT2(check_bitfield, 0x00, dc_stream1[2]);
+  }
+
+  {
+    uint8_t dc_stream0[] = { 0xaa, 0x55, 0xaa, 0x55 };
+    uint8_t dc_stream1[] = { 0x00, 0x00, 0x00, 0x00 };
+
+    bt_device_class_t dc;
+    device_class_from_stream(&dc, dc_stream0);
+
+    int rc = device_class_to_stream(&dc, dc_stream1, sizeof(dc_stream1));
+    EXPECT_EQ(3, rc);
+    uint32_t *val = (uint32_t *)&dc;
+    EXPECT_PRED_FORMAT2(check_bitfield, 0x00aa55aa, *val & 0xffffff);
+
+    EXPECT_PRED_FORMAT2(check_bitfield, 0xaa, dc_stream1[0]);
+    EXPECT_PRED_FORMAT2(check_bitfield, 0x55, dc_stream1[1]);
+    EXPECT_PRED_FORMAT2(check_bitfield, 0xaa, dc_stream1[2]);
+  }
+
+  {
+    uint8_t dc_stream0[] = { 0x01, 0x23, 0x45, 0x67 };
+    uint8_t dc_stream1[] = { 0x00, 0x00, 0x00, 0x00 };
+
+    bt_device_class_t dc;
+    device_class_from_stream(&dc, dc_stream0);
+
+    int rc = device_class_to_stream(&dc, dc_stream1, sizeof(dc_stream1));
+    EXPECT_EQ(3, rc);
+    uint32_t *val = (uint32_t *)&dc;
+    EXPECT_PRED_FORMAT2(check_bitfield, 0x452301, *val & 0xffffff);
+
+    EXPECT_PRED_FORMAT2(check_bitfield, 0x01, dc_stream1[0]);
+    EXPECT_PRED_FORMAT2(check_bitfield, 0x23, dc_stream1[1]);
+    EXPECT_PRED_FORMAT2(check_bitfield, 0x45, dc_stream1[2]);
+  }
+}
+
+TEST_F(DeviceClassTest, limited_discoverable_mode) {
+  uint8_t dc_stream[] = { 0x00, 0x00, 0x00 };
+  bt_device_class_t dc;
+  device_class_from_stream(&dc, dc_stream);
+  uint32_t *test = (uint32_t *)&dc;
+
+  EXPECT_FALSE(device_class_get_limited(&dc));
+  EXPECT_EQ((unsigned)0x00000000, *test & DC_MASK);
+
+  device_class_set_limited(&dc, true);
+  EXPECT_TRUE(device_class_get_limited(&dc));
+  EXPECT_EQ((unsigned)0x00002000, *test & DC_MASK);
+
+  device_class_set_limited(&dc, false);
+  EXPECT_FALSE(device_class_get_limited(&dc));
+  EXPECT_EQ((unsigned)0x00000000, *test & DC_MASK);
+
+  device_class_set_limited(&dc, true);
+  EXPECT_PRED_FORMAT2(check_bitfield, 0x00002000, *test & DC_MASK);
+
+  device_class_set_limited(&dc, false);
+  EXPECT_PRED_FORMAT2(check_bitfield, 0x00000000, *test & DC_MASK);
+}
+
+TEST_F(DeviceClassTest, equals) {
+  uint8_t dc_stream0[] = { 0x00, 0x01, 0x02 };
+  uint8_t dc_stream1[] = { 0x00, 0x02, 0x03 };
+
+  bt_device_class_t dc0;
+  device_class_from_stream(&dc0, dc_stream0);
+  bt_device_class_t dc1;
+  device_class_from_stream(&dc1, dc_stream1);
+  EXPECT_FALSE(device_class_equals(&dc0, &dc1));
+}
+
+TEST_F(DeviceClassTest, copy) {
+  uint8_t dc_stream0[] = { 0xaa, 0x55, 0x33 };
+  bt_device_class_t dc0;
+  device_class_from_stream(&dc0, dc_stream0);
+  bt_device_class_t dc1;
+  EXPECT_TRUE(device_class_copy(&dc1, &dc0));
+  EXPECT_TRUE(device_class_equals(&dc0, &dc1));
+}
+
+TEST_F(DeviceClassTest, from_int) {
+  bt_device_class_t dc1;
+  int cod1 = 0x5a020c;  // 5898764
+  device_class_from_int(&dc1, cod1);
+
+  uint8_t dc_stream[] = { 0x0c, 0x02, 0x5a };
+  bt_device_class_t dc2;
+  device_class_from_stream(&dc2, dc_stream);
+  EXPECT_TRUE(device_class_equals(&dc1, &dc2));
+}
+
+TEST_F(DeviceClassTest, to_int) {
+  bt_device_class_t dc1 = {{ 0x0c, 0x02, 0x5a }};
+  int cod1 = device_class_to_int(&dc1);
+
+  EXPECT_EQ(dc1._[0], 0x0c);
+  EXPECT_EQ(dc1._[1], 0x02);
+  EXPECT_EQ(dc1._[2], 0x5a);
+
+  bt_device_class_t dc2;
+  uint8_t dc_stream[] = { 0x0c, 0x02, 0x5a };
+  device_class_from_stream(&dc2, dc_stream);
+
+  EXPECT_EQ(dc2._[0], 0x0c);
+  EXPECT_EQ(dc2._[1], 0x02);
+  EXPECT_EQ(dc2._[2], 0x5a);
+
+  int cod2 = device_class_to_int(&dc2);
+  EXPECT_EQ(cod1, cod2);
+  EXPECT_EQ(cod1, 0x5a020c);  // 5898764
+}
+
+TEST_F(DeviceClassTest, endian) {
+  bt_device_class_t dc;
+  int cod1 = 0x200714;  // 2098964
+  device_class_from_int(&dc, cod1);
+
+  EXPECT_EQ(dc._[0], 0x14);
+  EXPECT_EQ(dc._[1], 0x07);
+  EXPECT_EQ(dc._[2], 0x20);
+
+  int cod2 = device_class_to_int(&dc);
+  EXPECT_EQ(cod1, cod2);
+  EXPECT_EQ(cod2, 0x200714); // 2098964
+}
diff --git a/rtkbt/code/bt/btcore/test/property_test.cpp b/rtkbt/code/bt/btcore/test/property_test.cpp
new file mode 100755
index 0000000..8032e97
--- /dev/null
+++ b/rtkbt/code/bt/btcore/test/property_test.cpp
@@ -0,0 +1,247 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#include <arpa/inet.h>
+#include <gtest/gtest.h>
+#include "osi/test/AllocationTestHarness.h"
+
+extern "C" {
+#include "btcore/include/property.h"
+}  // "C"
+
+class PropertyTest : public AllocationTestHarness {};
+
+TEST_F(PropertyTest, addr) {
+  bt_bdaddr_t addr0 = {{0x1, 0x2, 0x3, 0x4, 0x5, 0x6}};
+  bt_property_t *property = property_new_addr(&addr0);
+
+  EXPECT_EQ(addr0.address[0], ((uint8_t*)property->val)[0]);
+  EXPECT_EQ(addr0.address[1], ((uint8_t*)property->val)[1]);
+  EXPECT_EQ(addr0.address[2], ((uint8_t*)property->val)[2]);
+  EXPECT_EQ(addr0.address[3], ((uint8_t*)property->val)[3]);
+  EXPECT_EQ(addr0.address[4], ((uint8_t*)property->val)[4]);
+  EXPECT_EQ(addr0.address[5], ((uint8_t*)property->val)[5]);
+  EXPECT_EQ(BT_PROPERTY_BDADDR, property->type);
+  EXPECT_EQ((int)sizeof(bt_bdaddr_t), property->len);
+
+  const bt_bdaddr_t *addr1 = property_as_addr(property);
+  EXPECT_EQ(addr0.address[0], addr1->address[0]);
+
+  property_free(property);
+}
+
+TEST_F(PropertyTest, device_class) {
+  bt_device_class_t dc0 = {{ 0x01, 0x23, 0x45 }};
+  bt_property_t *property = property_new_device_class(&dc0);
+
+  EXPECT_EQ(dc0._[0], ((uint8_t*)property->val)[0]);
+  EXPECT_EQ(dc0._[1], ((uint8_t*)property->val)[1]);
+  EXPECT_EQ(dc0._[2], ((uint8_t*)property->val)[2]);
+  EXPECT_EQ(BT_PROPERTY_CLASS_OF_DEVICE, property->type);
+  EXPECT_EQ((int)sizeof(bt_device_class_t), property->len);
+
+  const bt_device_class_t *dc1 = property_as_device_class(property);
+  int dc_int = device_class_to_int(dc1);
+  EXPECT_EQ(0x452301, dc_int);
+
+  property_free(property);
+}
+
+TEST_F(PropertyTest, device_type) {
+  bt_device_type_t dt0 = (bt_device_type_t)1;
+  bt_property_t *property = property_new_device_type(dt0);
+
+  EXPECT_EQ((int)dt0, *(int*)property->val);
+  EXPECT_EQ(BT_PROPERTY_TYPE_OF_DEVICE, property->type);
+  EXPECT_EQ((int)sizeof(bt_device_type_t), property->len);
+
+  bt_device_type_t dt1 = property_as_device_type(property);
+  EXPECT_EQ(1, (int)dt1);
+
+  property_free(property);
+}
+
+TEST_F(PropertyTest, discovery_timeout) {
+  uint32_t timeout0 = 12345;
+  bt_property_t *property = property_new_discovery_timeout(timeout0);
+
+  EXPECT_EQ(timeout0, *(uint32_t *)property->val);
+  EXPECT_EQ(BT_PROPERTY_ADAPTER_DISCOVERY_TIMEOUT, property->type);
+  EXPECT_EQ((int)sizeof(uint32_t), property->len);
+
+  uint32_t timeout1 = property_as_discovery_timeout(property);
+  EXPECT_EQ(timeout0, timeout1);
+
+  property_free(property);
+}
+
+TEST_F(PropertyTest, name) {
+  const char *name0 = "My btcore name";
+  bt_property_t *property = property_new_name(name0);
+
+  EXPECT_EQ(0, strcmp((char *)name0, (char *)property->val));
+  EXPECT_EQ(BT_PROPERTY_BDNAME, property->type);
+  EXPECT_EQ((int)sizeof(bt_bdname_t), property->len);
+
+  const bt_bdname_t *name1 = property_as_name(property);
+  EXPECT_EQ(0, strcmp((char *)name0, (char *)name1->name));
+
+  property_free(property);
+}
+
+TEST_F(PropertyTest, rssi) {
+  int8_t rssi0 = -56;
+  bt_property_t *property = property_new_rssi(rssi0);
+
+  EXPECT_EQ(*(int8_t *)property->val, rssi0);
+  EXPECT_EQ(BT_PROPERTY_REMOTE_RSSI, property->type);
+  EXPECT_EQ((int)sizeof(int8_t), property->len);
+
+  int8_t rss1 = property_as_rssi(property);
+  EXPECT_EQ(rssi0, rss1);
+
+  property_free(property);
+}
+
+TEST_F(PropertyTest, scan_mode) {
+  bt_scan_mode_t mode0 = (bt_scan_mode_t)3;
+  bt_property_t *property = property_new_scan_mode(mode0);
+
+  EXPECT_EQ(*(int *)property->val, mode0);
+  EXPECT_EQ(BT_PROPERTY_ADAPTER_SCAN_MODE, property->type);
+  EXPECT_EQ((int)sizeof(int), property->len);
+
+  bt_scan_mode_t mode1 = property_as_scan_mode(property);
+  EXPECT_EQ((int)mode0, (int)mode1);
+
+  property_free(property);
+}
+
+TEST_F(PropertyTest, uuids) {
+  bt_uuid_t uuid0 = {
+    {
+      0x00, 0x11, 0x22, 0x33,
+      0x44, 0x55, 0x66, 0x77,
+      0x88, 0x99, 0xaa, 0xbb,
+      0xcc, 0xdd, 0xee, 0xff,
+    }
+  };
+  bt_property_t *property = property_new_uuids(&uuid0, 1);
+
+  EXPECT_EQ(0, strcmp((const char *)uuid0.uu, (char *)property->val));
+  EXPECT_EQ(BT_PROPERTY_UUIDS, property->type);
+  EXPECT_EQ((int)sizeof(bt_uuid_t), property->len);
+
+  size_t uuid_cnt1;
+  const bt_uuid_t *uuid1 = property_as_uuids(property, &uuid_cnt1);
+  EXPECT_EQ(0, memcmp(uuid1->uu, uuid1->uu, sizeof(bt_uuid_t)));
+
+  property_free(property);
+}
+
+TEST_F(PropertyTest, copy) {
+  {
+    bt_uuid_t uuids[] = {
+      {{
+         0x00, 0x11, 0x22, 0x33,
+         0x44, 0x55, 0x66, 0x77,
+         0x88, 0x99, 0xaa, 0xbb,
+         0xcc, 0xdd, 0xee, 0xff,
+       }},
+      {{
+         0xf0, 0xe1, 0xd2, 0xc3,
+         0xf4, 0xe5, 0xd6, 0xc7,
+         0xf8, 0xe9, 0xda, 0xcb,
+         0xfc, 0xed, 0xde, 0xcf,
+       }},
+    };
+
+    bt_property_t *property0 = property_new_uuids(uuids, sizeof(bt_uuid_t)/sizeof(uuids));
+
+    bt_property_t property1;
+    property_copy(&property1, property0);
+    EXPECT_TRUE(property_equals(property0, &property1));
+
+    property_free(property0);
+  }
+}
+
+TEST_F(PropertyTest, equals) {
+  {
+    bt_bdaddr_t addr0 = {{0x1, 0x2, 0x3, 0x4, 0x5, 0x6}};
+    bt_property_t *property0 = property_new_addr(&addr0);
+
+    bt_device_class_t dc0 = {{ 0x01, 0x23, 0x45 }};
+    bt_property_t *property1 = property_new_device_class(&dc0);
+
+    EXPECT_FALSE(property_equals(property0, property1));
+
+    property_free(property0);
+    property_free(property1);
+  }
+
+  {
+    bt_bdaddr_t addr = {{0x1, 0x2, 0x3, 0x4, 0x5, 0x6}};
+    bt_property_t *property0 = property_new_addr(&addr);
+    bt_property_t *property1 = property_new_addr(&addr);
+
+    EXPECT_TRUE(property_equals(property0, property1));
+
+    property_free(property0);
+    property_free(property1);
+  }
+
+  {
+    bt_bdaddr_t addr0 = {{0x1, 0x2, 0x3, 0x4, 0x5, 0x6}};
+    bt_property_t *property0 = property_new_addr(&addr0);
+
+    bt_bdaddr_t addr1 = {{0x1, 0x2, 0x3, 0x4, 0x5, 0xff}};
+    bt_property_t *property1 = property_new_addr(&addr1);
+
+    EXPECT_FALSE(property_equals(property0, property1));
+
+    property_free(property0);
+    property_free(property1);
+  }
+
+  {
+    const char *name0 = "My btcore name";
+    bt_property_t *property0 = property_new_name(name0);
+
+    const char *name1 = "My btcore name";
+    bt_property_t *property1 = property_new_name(name1);
+
+    EXPECT_TRUE(property_equals(property0, property1));
+
+    property_free(property0);
+    property_free(property1);
+  }
+
+  {
+    const char *name0 = "My btcore name";
+    bt_property_t *property0 = property_new_name(name0);
+
+    const char *name1 = "My btcore name     ";
+    bt_property_t *property1 = property_new_name(name1);
+
+    EXPECT_FALSE(property_equals(property0, property1));
+
+    property_free(property0);
+    property_free(property1);
+  }
+}
diff --git a/rtkbt/code/bt/btcore/test/uuid_test.cpp b/rtkbt/code/bt/btcore/test/uuid_test.cpp
new file mode 100755
index 0000000..7b3e788
--- /dev/null
+++ b/rtkbt/code/bt/btcore/test/uuid_test.cpp
@@ -0,0 +1,166 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#include <gtest/gtest.h>
+#include "osi/test/AllocationTestHarness.h"
+
+extern "C" {
+#include "btcore/include/uuid.h"
+}
+
+static const char *UUID_EMPTY = "00000000-0000-0000-0000-000000000000";
+static const char *UUID_ONES = "11111111-1111-1111-1111-111111111111";
+static const char *UUID_SEQUENTIAL = "01234567-89ab-cdef-ABCD-EF0123456789";
+static const char *UUID_BASE = "00000000-0000-1000-8000-00805f9b34fb";
+
+class UuidTest : public AllocationTestHarness {
+  protected:
+    virtual void SetUp() {
+    }
+
+    virtual void TearDown() {
+    }
+};
+
+TEST_F(UuidTest, new_from_string) {
+  bt_uuid_t *uuid;
+
+  uuid = uuid_new("incorrect length");
+  EXPECT_EQ(NULL, uuid);
+
+  uuid = uuid_new("correct length but missing dashes --");
+  EXPECT_EQ(NULL, uuid);
+
+  uuid = uuid_new(UUID_ONES);
+  ASSERT_TRUE(uuid != NULL);
+  for (int i = 0; i < 16; i++) {
+    EXPECT_EQ(0x11, uuid->uu[i]);
+  }
+  uuid_free(uuid);
+
+  uuid = uuid_new(UUID_SEQUENTIAL);
+  EXPECT_EQ(0x01, uuid->uu[0]);
+  EXPECT_EQ(0x23, uuid->uu[1]);
+  EXPECT_EQ(0x45, uuid->uu[2]);
+  EXPECT_EQ(0x67, uuid->uu[3]);
+  EXPECT_EQ(0x89, uuid->uu[4]);
+  EXPECT_EQ(0xAB, uuid->uu[5]);
+  EXPECT_EQ(0xCD, uuid->uu[6]);
+  EXPECT_EQ(0xEF, uuid->uu[7]);
+  EXPECT_EQ(0xab, uuid->uu[8]);
+  EXPECT_EQ(0xcd, uuid->uu[9]);
+  EXPECT_EQ(0xef, uuid->uu[10]);
+  EXPECT_EQ(0x01, uuid->uu[11]);
+  EXPECT_EQ(0x23, uuid->uu[12]);
+  EXPECT_EQ(0x45, uuid->uu[13]);
+  EXPECT_EQ(0x67, uuid->uu[14]);
+  EXPECT_EQ(0x89, uuid->uu[15]);
+  uuid_free(uuid);
+
+  uuid = uuid_new(UUID_BASE);
+  EXPECT_EQ(0x00, uuid->uu[0]);
+  EXPECT_EQ(0x00, uuid->uu[1]);
+  EXPECT_EQ(0x00, uuid->uu[2]);
+  EXPECT_EQ(0x00, uuid->uu[3]);
+  EXPECT_EQ(0x00, uuid->uu[4]);
+  EXPECT_EQ(0x00, uuid->uu[5]);
+  EXPECT_EQ(0x10, uuid->uu[6]);
+  EXPECT_EQ(0x00, uuid->uu[7]);
+  EXPECT_EQ(0x80, uuid->uu[8]);
+  EXPECT_EQ(0x00, uuid->uu[9]);
+  EXPECT_EQ(0x00, uuid->uu[10]);
+  EXPECT_EQ(0x80, uuid->uu[11]);
+  EXPECT_EQ(0x5f, uuid->uu[12]);
+  EXPECT_EQ(0x9b, uuid->uu[13]);
+  EXPECT_EQ(0x34, uuid->uu[14]);
+  EXPECT_EQ(0xfb, uuid->uu[15]);
+  uuid_free(uuid);
+}
+
+TEST_F(UuidTest, uuid_is_empty) {
+  bt_uuid_t *uuid = NULL;
+
+  uuid = uuid_new(UUID_EMPTY);
+  ASSERT_TRUE(uuid != NULL);
+  EXPECT_TRUE(uuid_is_empty(uuid));
+  uuid_free(uuid);
+
+  uuid = uuid_new(UUID_BASE);
+  ASSERT_TRUE(uuid != NULL);
+  EXPECT_FALSE(uuid_is_empty(uuid));
+  uuid_free(uuid);
+}
+
+TEST_F(UuidTest, uuid_128_to_16) {
+  bt_uuid_t *uuid = NULL;
+  uint16_t uuid16 = 0xffff;
+
+  uuid = uuid_new(UUID_ONES);
+  EXPECT_FALSE(uuid_128_to_16(uuid, &uuid16));
+  uuid_free(uuid);
+  EXPECT_EQ((uint16_t)0xffff, uuid16);
+
+  uuid = uuid_new(UUID_BASE);
+  EXPECT_TRUE(uuid_128_to_16(uuid, &uuid16));
+  uuid_free(uuid);
+  EXPECT_NE((uint16_t)0xffff, uuid16);
+  EXPECT_EQ((uint16_t)0, uuid16);
+}
+
+TEST_F(UuidTest, uuid_128_to_32) {
+  bt_uuid_t *uuid = NULL;
+  uint32_t uuid32 = 0xffffffff;
+
+  uuid = uuid_new(UUID_ONES);
+  EXPECT_FALSE(uuid_128_to_32(uuid, &uuid32));
+  uuid_free(uuid);
+  EXPECT_EQ((uint32_t)0xffffffff, uuid32);
+
+  uuid = uuid_new(UUID_BASE);
+  EXPECT_TRUE(uuid_128_to_32(uuid, &uuid32));
+  uuid_free(uuid);
+  EXPECT_NE((uint32_t)0xffffffff, uuid32);
+  EXPECT_EQ((uint32_t)0, uuid32);
+}
+
+TEST_F(UuidTest, uuid_to_string) {
+  bt_uuid_t *uuid = NULL;
+
+  uuid_string_t *uuid_string = uuid_string_new();
+  EXPECT_TRUE(uuid_string != NULL);
+
+  uuid = uuid_new(UUID_BASE);
+  EXPECT_TRUE(uuid != NULL);
+  uuid_to_string(uuid, uuid_string);
+  uuid_free(uuid);
+
+  EXPECT_TRUE(!strcmp(UUID_BASE, uuid_string_data(uuid_string)));
+
+  uuid = uuid_new(UUID_SEQUENTIAL);
+  EXPECT_TRUE(uuid != NULL);
+
+  uuid_to_string(uuid, uuid_string);
+  uuid_free(uuid);
+
+  char lower_case_buf[36+1];
+  for (int i = 0; i < 36+1; i++) {
+    lower_case_buf[i] = tolower(UUID_SEQUENTIAL[i]);
+  }
+  EXPECT_TRUE(!strcmp(lower_case_buf, uuid_string_data(uuid_string)));
+  uuid_string_free(uuid_string);
+}
diff --git a/rtkbt/code/bt/btif/Android.mk b/rtkbt/code/bt/btif/Android.mk
new file mode 100755
index 0000000..855dc78
--- /dev/null
+++ b/rtkbt/code/bt/btif/Android.mk
@@ -0,0 +1,143 @@
+ ##############################################################################
+ #
+ #  Copyright (C) 2014 Google, Inc.
+ #
+ #  Licensed under the Apache License, Version 2.0 (the "License");
+ #  you may not use this file except in compliance with the License.
+ #  You may obtain a copy of the License at:
+ #
+ #  http://www.apache.org/licenses/LICENSE-2.0
+ #
+ #  Unless required by applicable law or agreed to in writing, software
+ #  distributed under the License is distributed on an "AS IS" BASIS,
+ #  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ #  See the License for the specific language governing permissions and
+ #  limitations under the License.
+ #
+ ##############################################################################
+
+LOCAL_PATH := $(call my-dir)
+
+# Common variables
+# ========================================================
+
+# HAL layer
+btifCommonSrc := \
+  src/bluetooth.c
+
+# BTIF implementation
+btifCommonSrc += \
+  src/btif_av.c \
+  src/btif_avrcp_audio_track.cpp \
+  src/btif_config.c \
+  src/btif_config_transcode.cpp \
+  src/btif_core.c \
+  src/btif_debug.c \
+  src/btif_debug_btsnoop.c \
+  src/btif_debug_conn.c \
+  src/btif_dm.c \
+  src/btif_gatt.c \
+  src/btif_gatt_client.c \
+  src/btif_gatt_multi_adv_util.c \
+  src/btif_gatt_server.c \
+  src/btif_gatt_test.c \
+  src/btif_gatt_util.c \
+  src/btif_hf.c \
+  src/btif_hf_client.c \
+  src/btif_hh.c \
+  src/btif_hl.c \
+  src/btif_sdp.c \
+  src/btif_media_task.c \
+  src/btif_pan.c \
+  src/btif_profile_queue.c \
+  src/btif_rc.c \
+  src/btif_sm.c \
+  src/btif_sock.c \
+  src/btif_sock_rfc.c \
+  src/btif_sock_l2cap.c \
+  src/btif_sock_sco.c \
+  src/btif_sock_sdp.c \
+  src/btif_sock_thread.c \
+  src/btif_sdp_server.c \
+  src/btif_sock_util.c \
+  src/btif_storage.c \
+  src/btif_uid.c \
+  src/btif_util.c \
+  src/stack_manager.c
+
+# Callouts
+btifCommonSrc += \
+  co/bta_ag_co.c \
+  co/bta_dm_co.c \
+  co/bta_av_co.c \
+  co/bta_hh_co.c \
+  co/bta_hl_co.c \
+  co/bta_pan_co.c \
+  co/bta_gatts_co.c
+
+# Tests
+btifTestSrc := \
+  test/btif_storage_test.cpp
+
+# Includes
+btifCommonIncludes := \
+  $(LOCAL_PATH)/../ \
+  $(LOCAL_PATH)/../bta/include \
+  $(LOCAL_PATH)/../bta/sys \
+  $(LOCAL_PATH)/../bta/dm \
+  $(LOCAL_PATH)/../btcore/include \
+  $(LOCAL_PATH)/../include \
+  $(LOCAL_PATH)/../stack/include \
+  $(LOCAL_PATH)/../stack/l2cap \
+  $(LOCAL_PATH)/../stack/a2dp \
+  $(LOCAL_PATH)/../stack/btm \
+  $(LOCAL_PATH)/../stack/avdt \
+  $(LOCAL_PATH)/../hcis \
+  $(LOCAL_PATH)/../hcis/include \
+  $(LOCAL_PATH)/../hcis/patchram \
+  $(LOCAL_PATH)/../udrv/include \
+  $(LOCAL_PATH)/../btif/include \
+  $(LOCAL_PATH)/../btif/co \
+  $(LOCAL_PATH)/../hci/include\
+  $(LOCAL_PATH)/../vnd/include \
+  $(LOCAL_PATH)/../brcm/include \
+  $(LOCAL_PATH)/../embdrv/sbc/encoder/include \
+  $(LOCAL_PATH)/../embdrv/sbc/decoder/include \
+  $(LOCAL_PATH)/../audio_a2dp_hw \
+  $(LOCAL_PATH)/../utils/include \
+  $(bluetooth_C_INCLUDES) \
+  external/tinyxml2 \
+  external/zlib
+
+# libbtif static library for target
+# ========================================================
+include $(CLEAR_VARS)
+LOCAL_C_INCLUDES := $(btifCommonIncludes)
+LOCAL_SRC_FILES := $(btifCommonSrc)
+# Many .h files have redefined typedefs
+LOCAL_SHARED_LIBRARIES := libcutils liblog
+LOCAL_MODULE_CLASS := STATIC_LIBRARIES
+LOCAL_MODULE_TAGS := optional
+LOCAL_MODULE := libbtif-rtk
+
+LOCAL_CFLAGS += $(bluetooth_CFLAGS) -DBUILDCFG
+LOCAL_CONLYFLAGS += $(bluetooth_CONLYFLAGS)
+LOCAL_CPPFLAGS += $(bluetooth_CPPFLAGS)
+
+include $(BUILD_STATIC_LIBRARY)
+
+## btif unit tests for target
+## ========================================================
+#include $(CLEAR_VARS)
+#LOCAL_C_INCLUDES := $(btifCommonIncludes)
+#LOCAL_SRC_FILES := $(btifTestSrc)
+#LOCAL_SHARED_LIBRARIES += liblog libhardware libhardware_legacy libcutils
+#LOCAL_STATIC_LIBRARIES += libbtcore libbtif libosi
+#LOCAL_MODULE_TAGS := optional
+#LOCAL_MODULE := net_test_btif
+#
+#LOCAL_CFLAGS += $(bluetooth_CFLAGS) -DBUILDCFG
+#LOCAL_CONLYFLAGS += $(bluetooth_CONLYFLAGS)
+#LOCAL_CPPFLAGS += $(bluetooth_CPPFLAGS)
+#
+#include $(BUILD_NATIVE_TEST)
diff --git a/rtkbt/code/bt/btif/BUILD.gn b/rtkbt/code/bt/btif/BUILD.gn
new file mode 100755
index 0000000..f0d3ef8
--- /dev/null
+++ b/rtkbt/code/bt/btif/BUILD.gn
@@ -0,0 +1,89 @@
+#
+#  Copyright (C) 2015 Google, Inc.
+#
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at:
+#
+#  http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+#
+
+static_library("btif") {
+  sources = [
+    "src/btif_av.c",
+
+    #TODO(jpawlowski): heavily depends on Android,
+    #   "src/btif_avrcp_audio_track.cpp",
+    "src/btif_config.c",
+    "src/btif_core.c",
+    "src/btif_debug.c",
+    "src/btif_debug_btsnoop.c",
+    "src/btif_debug_conn.c",
+    "src/btif_dm.c",
+    "src/btif_gatt.c",
+    "src/btif_gatt_client.c",
+    "src/btif_gatt_multi_adv_util.c",
+    "src/btif_gatt_server.c",
+    "src/btif_gatt_test.c",
+    "src/btif_gatt_util.c",
+    "src/btif_hf.c",
+    "src/btif_hf_client.c",
+    "src/btif_hh.c",
+    "src/btif_hl.c",
+    "src/btif_mce.c",
+    "src/btif_media_task.c",
+    "src/btif_pan.c",
+    "src/btif_profile_queue.c",
+    "src/btif_rc.c",
+    "src/btif_sdp.c",
+    "src/btif_sdp_server.c",
+    "src/btif_sm.c",
+    "src/btif_sock.c",
+    "src/btif_sock_l2cap.c",
+    "src/btif_sock_rfc.c",
+    "src/btif_sock_sco.c",
+    "src/btif_sock_sdp.c",
+    "src/btif_sock_thread.c",
+    "src/btif_sock_util.c",
+    "src/btif_storage.c",
+    "src/btif_uid.c",
+    "src/btif_util.c",
+    "src/stack_manager.c",
+  ]
+
+  # BTIF callouts
+  sources += [
+    "co/bta_ag_co.c",
+    "co/bta_dm_co.c",
+    "co/bta_av_co.c",
+    "co/bta_hh_co.c",
+    "co/bta_hl_co.c",
+    "co/bta_pan_co.c",
+    "co/bta_gatts_co.c",
+  ]
+
+  include_dirs = [
+    "include",
+    "//",
+    "//audio_a2dp_hw",
+    "//bta/include",
+    "//bta/sys",
+    "//btcore/include",
+    "//embdrv/sbc/encoder/include",
+    "//hci/include",
+    "//stack/a2dp",
+    "//stack/btm",
+    "//stack/include",
+    "//third_party/tinyxml2",
+    "//include",
+    "//udrv/include",
+    "//utils/include",
+    "//vnd/include",
+  ]
+}
diff --git a/rtkbt/code/bt/btif/co/bta_ag_co.c b/rtkbt/code/bt/btif/co/bta_ag_co.c
new file mode 100755
index 0000000..e18cc9d
--- /dev/null
+++ b/rtkbt/code/bt/btif/co/bta_ag_co.c
@@ -0,0 +1,155 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_btif_bta_ag"
+
+#include <cutils/properties.h>
+
+#include "bta/include/bta_ag_api.h"
+#include "hci/include/hci_audio.h"
+#include "osi/include/osi.h"
+
+/*******************************************************************************
+**
+** Function         bta_ag_co_init
+**
+** Description      This callout function is executed by AG when it is
+**                  started by calling BTA_AgEnable().  This function can be
+**                  used by the phone to initialize audio paths or for other
+**                  initialization purposes.
+**
+**
+** Returns          Void.
+**
+*******************************************************************************/
+void bta_ag_co_init(void)
+{
+    BTM_WriteVoiceSettings(AG_VOICE_SETTINGS);
+}
+
+
+/*******************************************************************************
+**
+** Function         bta_ag_co_audio_state
+**
+** Description      This function is called by the AG before the audio connection
+**                  is brought up, after it comes up, and after it goes down.
+**
+** Parameters       handle - handle of the AG instance
+**                  state - Audio state
+**                  codec - if WBS support is compiled in, codec to going to be used is provided
+**                      and when in SCO_STATE_SETUP, BTM_I2SPCMConfig() must be called with
+**                      the correct platform parameters.
+**                      in the other states codec type should not be ignored
+**
+** Returns          void
+**
+*******************************************************************************/
+#if (BTM_WBS_INCLUDED == TRUE )
+void bta_ag_co_audio_state(UINT16 handle, UINT8 app_id, UINT8 state, tBTA_AG_PEER_CODEC codec)
+#else
+void bta_ag_co_audio_state(UINT16 handle, UINT8 app_id, UINT8 state)
+#endif
+{
+    BTIF_TRACE_DEBUG("bta_ag_co_audio_state: handle %d, state %d", handle, state);
+    switch (state)
+    {
+    case SCO_STATE_OFF:
+#if (BTM_WBS_INCLUDED == TRUE )
+        BTIF_TRACE_DEBUG("bta_ag_co_audio_state(handle %d)::Closed (OFF), codec: 0x%x",
+                        handle, codec);
+        set_audio_state(handle, codec, state);
+#else
+        BTIF_TRACE_DEBUG("bta_ag_co_audio_state(handle %d)::Closed (OFF)",
+                        handle);
+#endif
+        break;
+    case SCO_STATE_OFF_TRANSFER:
+        BTIF_TRACE_DEBUG("bta_ag_co_audio_state(handle %d)::Closed (XFERRING)", handle);
+        break;
+    case SCO_STATE_SETUP:
+#if (BTM_WBS_INCLUDED == TRUE )
+        set_audio_state(handle, codec, state);
+#else
+        set_audio_state(handle, BTA_AG_CODEC_CVSD, state);
+#endif
+        break;
+    default:
+        break;
+    }
+#if (BTM_WBS_INCLUDED == TRUE )
+    APPL_TRACE_DEBUG("bta_ag_co_audio_state(handle %d, app_id: %d, state %d, codec: 0x%x)",
+                      handle, app_id, state, codec);
+#else
+    APPL_TRACE_DEBUG("bta_ag_co_audio_state(handle %d, app_id: %d, state %d)", \
+    handle, app_id, state);
+#endif
+}
+
+
+/*******************************************************************************
+**
+** Function         bta_ag_co_data_open
+**
+** Description      This function is executed by AG when a service level connection
+**                  is opened.  The phone can use this function to set
+**                  up data paths or perform any required initialization or
+**                  set up particular to the connected service.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_ag_co_data_open(UINT16 handle, tBTA_SERVICE_ID service)
+{
+    BTIF_TRACE_DEBUG("bta_ag_co_data_open handle:%d service:%d", handle, service);
+}
+
+/*******************************************************************************
+**
+** Function         bta_ag_co_data_close
+**
+** Description      This function is called by AG when a service level
+**                  connection is closed
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_ag_co_data_close(UINT16 handle)
+{
+    BTIF_TRACE_DEBUG("bta_ag_co_data_close handle:%d", handle);
+}
+
+
+/*******************************************************************************
+ **
+ ** Function         bta_ag_co_tx_write
+ **
+ ** Description      This function is called by the AG to send data to the
+ **                  phone when the AG is configured for AT command pass-through.
+ **                  The implementation of this function must copy the data to
+ **                  the phones memory.
+ **
+ ** Returns          void
+ **
+ *******************************************************************************/
+void bta_ag_co_tx_write(UINT16 handle, UNUSED_ATTR UINT8 * p_data, UINT16 len)
+{
+    BTIF_TRACE_DEBUG( "bta_ag_co_tx_write: handle: %d, len: %d", handle, len );
+}
diff --git a/rtkbt/code/bt/btif/co/bta_av_co.c b/rtkbt/code/bt/btif/co/bta_av_co.c
new file mode 100755
index 0000000..76c8836
--- /dev/null
+++ b/rtkbt/code/bt/btif/co/bta_av_co.c
@@ -0,0 +1,1843 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2004-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the advanced audio/video call-out function implementation for
+ *  BTIF.
+ *
+ ******************************************************************************/
+
+#include "string.h"
+#include "a2d_api.h"
+#include "a2d_sbc.h"
+#include "bta_sys.h"
+#include "bta_av_api.h"
+#include "bta_av_co.h"
+#include "bta_av_ci.h"
+#include "bta_av_sbc.h"
+
+#include "btif_media.h"
+#include "sbc_encoder.h"
+#include "btif_av_co.h"
+#include "btif_util.h"
+#include "osi/include/mutex.h"
+
+
+/*****************************************************************************
+ **  Constants
+ *****************************************************************************/
+
+#define FUNC_TRACE()     APPL_TRACE_DEBUG("%s", __FUNCTION__);
+
+/* Macro to retrieve the number of elements in a statically allocated array */
+#define BTA_AV_CO_NUM_ELEMENTS(__a) (sizeof(__a)/sizeof((__a)[0]))
+
+/* MIN and MAX macros */
+#define BTA_AV_CO_MIN(X,Y) ((X) < (Y) ? (X) : (Y))
+#define BTA_AV_CO_MAX(X,Y) ((X) > (Y) ? (X) : (Y))
+
+/* Macro to convert audio handle to index and vice versa */
+#define BTA_AV_CO_AUDIO_HNDL_TO_INDX(hndl) (((hndl) & (~BTA_AV_CHNL_MSK)) - 1)
+#define BTA_AV_CO_AUDIO_INDX_TO_HNDL(indx) (((indx) + 1) | BTA_AV_CHNL_AUDIO)
+
+
+/* Offsets to access codec information in SBC codec */
+#define BTA_AV_CO_SBC_FREQ_CHAN_OFF    3
+#define BTA_AV_CO_SBC_BLOCK_BAND_OFF   4
+#define BTA_AV_CO_SBC_MIN_BITPOOL_OFF  5
+#define BTA_AV_CO_SBC_MAX_BITPOOL_OFF  6
+
+#define BTA_AV_CO_SBC_MAX_BITPOOL  53
+
+/* SCMS-T protect info */
+const UINT8 bta_av_co_cp_scmst[BTA_AV_CP_INFO_LEN] = "\x02\x02\x00";
+
+/* SBC SRC codec capabilities */
+const tA2D_SBC_CIE bta_av_co_sbc_caps =
+{
+    (A2D_SBC_IE_SAMP_FREQ_44), /* samp_freq */
+    (A2D_SBC_IE_CH_MD_JOINT), /* ch_mode */
+    (A2D_SBC_IE_BLOCKS_16), /* block_len */
+    (A2D_SBC_IE_SUBBAND_8), /* num_subbands */
+    (A2D_SBC_IE_ALLOC_MD_L), /* alloc_mthd */
+    BTA_AV_CO_SBC_MAX_BITPOOL, /* max_bitpool */
+    A2D_SBC_IE_MIN_BITPOOL /* min_bitpool */
+};
+
+/* SBC SINK codec capabilities */
+const tA2D_SBC_CIE bta_av_co_sbc_sink_caps =
+{
+    (A2D_SBC_IE_SAMP_FREQ_48 | A2D_SBC_IE_SAMP_FREQ_44), /* samp_freq */
+    (A2D_SBC_IE_CH_MD_MONO | A2D_SBC_IE_CH_MD_STEREO | A2D_SBC_IE_CH_MD_JOINT | A2D_SBC_IE_CH_MD_DUAL), /* ch_mode */
+    (A2D_SBC_IE_BLOCKS_16 | A2D_SBC_IE_BLOCKS_12 | A2D_SBC_IE_BLOCKS_8 | A2D_SBC_IE_BLOCKS_4), /* block_len */
+    (A2D_SBC_IE_SUBBAND_4 | A2D_SBC_IE_SUBBAND_8), /* num_subbands */
+    (A2D_SBC_IE_ALLOC_MD_L | A2D_SBC_IE_ALLOC_MD_S), /* alloc_mthd */
+    A2D_SBC_IE_MAX_BITPOOL, /* max_bitpool */
+    A2D_SBC_IE_MIN_BITPOOL /* min_bitpool */
+};
+
+#if !defined(BTIF_AV_SBC_DEFAULT_SAMP_FREQ)
+#define BTIF_AV_SBC_DEFAULT_SAMP_FREQ A2D_SBC_IE_SAMP_FREQ_44
+#endif
+
+/* Default SBC codec configuration */
+const tA2D_SBC_CIE btif_av_sbc_default_config =
+{
+    BTIF_AV_SBC_DEFAULT_SAMP_FREQ,   /* samp_freq */
+    A2D_SBC_IE_CH_MD_JOINT,         /* ch_mode */
+    A2D_SBC_IE_BLOCKS_16,           /* block_len */
+    A2D_SBC_IE_SUBBAND_8,           /* num_subbands */
+    A2D_SBC_IE_ALLOC_MD_L,          /* alloc_mthd */
+    BTA_AV_CO_SBC_MAX_BITPOOL,      /* max_bitpool */
+    A2D_SBC_IE_MIN_BITPOOL          /* min_bitpool */
+};
+
+
+/*****************************************************************************
+**  Local data
+*****************************************************************************/
+typedef struct
+{
+    UINT8 sep_info_idx;                 /* local SEP index (in BTA tables) */
+    UINT8 seid;                         /* peer SEP index (in peer tables) */
+    UINT8 codec_type;                   /* peer SEP codec type */
+    UINT8 codec_caps[AVDT_CODEC_SIZE];  /* peer SEP codec capabilities */
+    UINT8 num_protect;                  /* peer SEP number of CP elements */
+    UINT8 protect_info[BTA_AV_CP_INFO_LEN];  /* peer SEP content protection info */
+} tBTA_AV_CO_SINK;
+
+typedef struct
+{
+    BD_ADDR         addr;               /* address of audio/video peer */
+    tBTA_AV_CO_SINK snks[BTIF_SV_AV_AA_SEP_INDEX]; /* array of supported sinks */
+    tBTA_AV_CO_SINK srcs[BTIF_SV_AV_AA_SEP_INDEX]; /* array of supported srcs */
+    UINT8           num_snks;           /* total number of sinks at peer */
+    UINT8           num_srcs;           /* total number of srcs at peer */
+    UINT8           num_seps;           /* total number of seids at peer */
+    UINT8           num_rx_snks;        /* number of received sinks */
+    UINT8           num_rx_srcs;        /* number of received srcs */
+    UINT8           num_sup_snks;       /* number of supported sinks in the snks array */
+    UINT8           num_sup_srcs;       /* number of supported srcs in the srcs array */
+    tBTA_AV_CO_SINK *p_snk;             /* currently selected sink */
+    tBTA_AV_CO_SINK *p_src;             /* currently selected src */
+    UINT8           codec_cfg[AVDT_CODEC_SIZE]; /* current codec configuration */
+    BOOLEAN         cp_active;          /* current CP configuration */
+    BOOLEAN         acp;                /* acceptor */
+    BOOLEAN         recfg_needed;       /* reconfiguration is needed */
+    BOOLEAN         opened;             /* opened */
+    UINT16          mtu;                /* maximum transmit unit size */
+    UINT16          uuid_to_connect;    /* uuid of peer device */
+} tBTA_AV_CO_PEER;
+
+typedef struct
+{
+    BOOLEAN active;
+    UINT8 flag;
+} tBTA_AV_CO_CP;
+
+typedef struct
+{
+    /* Connected peer information */
+    tBTA_AV_CO_PEER peers[BTA_AV_NUM_STRS];
+    /* Current codec configuration - access to this variable must be protected */
+    tBTIF_AV_CODEC_INFO codec_cfg;
+    tBTIF_AV_CODEC_INFO codec_cfg_setconfig; /* remote peer setconfig preference */
+
+    tBTA_AV_CO_CP cp;
+} tBTA_AV_CO_CB;
+
+/* Control block instance */
+static tBTA_AV_CO_CB bta_av_co_cb;
+
+static BOOLEAN bta_av_co_audio_codec_build_config(const UINT8 *p_codec_caps, UINT8 *p_codec_cfg);
+static void bta_av_co_audio_peer_reset_config(tBTA_AV_CO_PEER *p_peer);
+static BOOLEAN bta_av_co_cp_is_scmst(const UINT8 *p_protectinfo);
+static BOOLEAN bta_av_co_audio_sink_has_scmst(const tBTA_AV_CO_SINK *p_sink);
+static BOOLEAN bta_av_co_audio_peer_supports_codec(tBTA_AV_CO_PEER *p_peer, UINT8 *p_snk_index);
+static BOOLEAN bta_av_co_audio_media_supports_config(UINT8 codec_type, const UINT8 *p_codec_cfg);
+static BOOLEAN bta_av_co_audio_sink_supports_config(UINT8 codec_type, const UINT8 *p_codec_cfg);
+static BOOLEAN bta_av_co_audio_peer_src_supports_codec(tBTA_AV_CO_PEER *p_peer, UINT8 *p_src_index);
+
+
+
+/*******************************************************************************
+ **
+ ** Function         bta_av_co_cp_is_active
+ **
+ ** Description      Get the current configuration of content protection
+ **
+ ** Returns          TRUE if the current streaming has CP, FALSE otherwise
+ **
+ *******************************************************************************/
+BOOLEAN bta_av_co_cp_is_active(void)
+{
+    FUNC_TRACE();
+    return bta_av_co_cb.cp.active;
+}
+
+/*******************************************************************************
+ **
+ ** Function         bta_av_co_cp_get_flag
+ **
+ ** Description      Get content protection flag
+ **                  BTA_AV_CP_SCMS_COPY_NEVER
+ **                  BTA_AV_CP_SCMS_COPY_ONCE
+ **                  BTA_AV_CP_SCMS_COPY_FREE
+ **
+ ** Returns          The current flag value
+ **
+ *******************************************************************************/
+UINT8 bta_av_co_cp_get_flag(void)
+{
+    FUNC_TRACE();
+    return bta_av_co_cb.cp.flag;
+}
+
+/*******************************************************************************
+ **
+ ** Function         bta_av_co_cp_set_flag
+ **
+ ** Description      Set content protection flag
+ **                  BTA_AV_CP_SCMS_COPY_NEVER
+ **                  BTA_AV_CP_SCMS_COPY_ONCE
+ **                  BTA_AV_CP_SCMS_COPY_FREE
+ **
+ ** Returns          TRUE if setting the SCMS flag is supported else FALSE
+ **
+ *******************************************************************************/
+BOOLEAN bta_av_co_cp_set_flag(UINT8 cp_flag)
+{
+    FUNC_TRACE();
+
+#if defined(BTA_AV_CO_CP_SCMS_T) && (BTA_AV_CO_CP_SCMS_T == TRUE)
+#else
+    if (cp_flag != BTA_AV_CP_SCMS_COPY_FREE)
+    {
+        return FALSE;
+    }
+#endif
+    bta_av_co_cb.cp.flag = cp_flag;
+    return TRUE;
+}
+
+/*******************************************************************************
+ **
+ ** Function         bta_av_co_get_peer
+ **
+ ** Description      find the peer entry for a given handle
+ **
+ ** Returns          the control block
+ **
+ *******************************************************************************/
+static tBTA_AV_CO_PEER *bta_av_co_get_peer(tBTA_AV_HNDL hndl)
+{
+    UINT8 index;
+    FUNC_TRACE();
+
+    index = BTA_AV_CO_AUDIO_HNDL_TO_INDX(hndl);
+
+    /* Sanity check */
+    if (index >= BTA_AV_CO_NUM_ELEMENTS(bta_av_co_cb.peers))
+    {
+        APPL_TRACE_ERROR("bta_av_co_get_peer peer index out of bounds:%d", index);
+        return NULL;
+    }
+
+    return &bta_av_co_cb.peers[index];
+}
+
+/*******************************************************************************
+ **
+ ** Function         bta_av_co_audio_init
+ **
+ ** Description      This callout function is executed by AV when it is
+ **                  started by calling BTA_AvRegister().  This function can be
+ **                  used by the phone to initialize audio paths or for other
+ **                  initialization purposes.
+ **
+ **
+ ** Returns          Stream codec and content protection capabilities info.
+ **
+ *******************************************************************************/
+BOOLEAN bta_av_co_audio_init(UINT8 *p_codec_type, UINT8 *p_codec_info, UINT8 *p_num_protect,
+        UINT8 *p_protect_info, UINT8 index)
+{
+    FUNC_TRACE();
+
+    APPL_TRACE_DEBUG("bta_av_co_audio_init: %d", index);
+
+    /* By default - no content protection info */
+    *p_num_protect = 0;
+    *p_protect_info = 0;
+
+    /* reset remote preference through setconfig */
+    bta_av_co_cb.codec_cfg_setconfig.id = BTIF_AV_CODEC_NONE;
+
+    switch (index)
+    {
+    case BTIF_SV_AV_AA_SBC_INDEX:
+#if defined(BTA_AV_CO_CP_SCMS_T) && (BTA_AV_CO_CP_SCMS_T == TRUE)
+    {
+        UINT8 *p = p_protect_info;
+
+        /* Content protection info - support SCMS-T */
+        *p_num_protect = 1;
+        *p++ = BTA_AV_CP_LOSC;
+        UINT16_TO_STREAM(p, BTA_AV_CP_SCMS_T_ID);
+
+    }
+#endif
+        /* Set up for SBC codec  for SRC*/
+        *p_codec_type = BTA_AV_CODEC_SBC;
+
+        /* This should not fail because we are using constants for parameters */
+        A2D_BldSbcInfo(AVDT_MEDIA_AUDIO, (tA2D_SBC_CIE *) &bta_av_co_sbc_caps, p_codec_info);
+
+        /* Codec is valid */
+        return TRUE;
+#if (BTA_AV_SINK_INCLUDED == TRUE)
+    case BTIF_SV_AV_AA_SBC_SINK_INDEX:
+        *p_codec_type = BTA_AV_CODEC_SBC;
+
+        /* This should not fail because we are using constants for parameters */
+        A2D_BldSbcInfo(AVDT_MEDIA_AUDIO, (tA2D_SBC_CIE *) &bta_av_co_sbc_sink_caps, p_codec_info);
+
+        /* Codec is valid */
+        return TRUE;
+#endif
+    default:
+        /* Not valid */
+        return FALSE;
+    }
+}
+
+/*******************************************************************************
+ **
+ ** Function         bta_av_co_audio_disc_res
+ **
+ ** Description      This callout function is executed by AV to report the
+ **                  number of stream end points (SEP) were found during the
+ **                  AVDT stream discovery process.
+ **
+ **
+ ** Returns          void.
+ **
+ *******************************************************************************/
+void bta_av_co_audio_disc_res(tBTA_AV_HNDL hndl, UINT8 num_seps, UINT8 num_snk,
+        UINT8 num_src, BD_ADDR addr, UINT16 uuid_local)
+{
+    tBTA_AV_CO_PEER *p_peer;
+
+    FUNC_TRACE();
+
+    APPL_TRACE_DEBUG("bta_av_co_audio_disc_res h:x%x num_seps:%d num_snk:%d num_src:%d",
+            hndl, num_seps, num_snk, num_src);
+
+    /* Find the peer info */
+    p_peer = bta_av_co_get_peer(hndl);
+    if (p_peer == NULL)
+    {
+        APPL_TRACE_ERROR("bta_av_co_audio_disc_res could not find peer entry");
+        return;
+    }
+
+    /* Sanity check : this should never happen */
+    if (p_peer->opened)
+    {
+        APPL_TRACE_ERROR("bta_av_co_audio_disc_res peer already opened");
+    }
+
+    /* Copy the discovery results */
+    bdcpy(p_peer->addr, addr);
+    p_peer->num_snks = num_snk;
+    p_peer->num_srcs = num_src;
+    p_peer->num_seps = num_seps;
+    p_peer->num_rx_snks = 0;
+    p_peer->num_rx_srcs = 0;
+    p_peer->num_sup_snks = 0;
+    if (uuid_local == UUID_SERVCLASS_AUDIO_SINK)
+        p_peer->uuid_to_connect = UUID_SERVCLASS_AUDIO_SOURCE;
+    else if (uuid_local == UUID_SERVCLASS_AUDIO_SOURCE)
+        p_peer->uuid_to_connect = UUID_SERVCLASS_AUDIO_SINK;
+}
+
+/*******************************************************************************
+ **
+ ** Function         bta_av_build_src_cfg
+ **
+ ** Description      This function will build preferred config from src capabilities
+ **
+ **
+ ** Returns          Pass or Fail for current getconfig.
+ **
+ *******************************************************************************/
+void bta_av_build_src_cfg (UINT8 *p_pref_cfg, UINT8 *p_src_cap)
+{
+    tA2D_SBC_CIE    src_cap;
+    tA2D_SBC_CIE    pref_cap;
+    UINT8           status = 0;
+
+    /* initialize it to default SBC configuration */
+    A2D_BldSbcInfo(AVDT_MEDIA_AUDIO, (tA2D_SBC_CIE *) &btif_av_sbc_default_config, p_pref_cfg);
+    /* now try to build a preferred one */
+    /* parse configuration */
+    if ((status = A2D_ParsSbcInfo(&src_cap, p_src_cap, TRUE)) != 0)
+    {
+         APPL_TRACE_DEBUG(" Cant parse src cap ret = %d", status);
+         return ;
+    }
+
+    if (src_cap.samp_freq & A2D_SBC_IE_SAMP_FREQ_48)
+        pref_cap.samp_freq = A2D_SBC_IE_SAMP_FREQ_48;
+    else if (src_cap.samp_freq & A2D_SBC_IE_SAMP_FREQ_44)
+        pref_cap.samp_freq = A2D_SBC_IE_SAMP_FREQ_44;
+
+    if (src_cap.ch_mode & A2D_SBC_IE_CH_MD_JOINT)
+        pref_cap.ch_mode = A2D_SBC_IE_CH_MD_JOINT;
+    else if (src_cap.ch_mode & A2D_SBC_IE_CH_MD_STEREO)
+        pref_cap.ch_mode = A2D_SBC_IE_CH_MD_STEREO;
+    else if (src_cap.ch_mode & A2D_SBC_IE_CH_MD_DUAL)
+        pref_cap.ch_mode = A2D_SBC_IE_CH_MD_DUAL;
+    else if (src_cap.ch_mode & A2D_SBC_IE_CH_MD_MONO)
+        pref_cap.ch_mode = A2D_SBC_IE_CH_MD_MONO;
+
+    if (src_cap.block_len & A2D_SBC_IE_BLOCKS_16)
+        pref_cap.block_len = A2D_SBC_IE_BLOCKS_16;
+    else if (src_cap.block_len & A2D_SBC_IE_BLOCKS_12)
+        pref_cap.block_len = A2D_SBC_IE_BLOCKS_12;
+    else if (src_cap.block_len & A2D_SBC_IE_BLOCKS_8)
+        pref_cap.block_len = A2D_SBC_IE_BLOCKS_8;
+    else if (src_cap.block_len & A2D_SBC_IE_BLOCKS_4)
+        pref_cap.block_len = A2D_SBC_IE_BLOCKS_4;
+
+    if (src_cap.num_subbands & A2D_SBC_IE_SUBBAND_8)
+        pref_cap.num_subbands = A2D_SBC_IE_SUBBAND_8;
+    else if(src_cap.num_subbands & A2D_SBC_IE_SUBBAND_4)
+        pref_cap.num_subbands = A2D_SBC_IE_SUBBAND_4;
+
+    if (src_cap.alloc_mthd & A2D_SBC_IE_ALLOC_MD_L)
+        pref_cap.alloc_mthd = A2D_SBC_IE_ALLOC_MD_L;
+    else if(src_cap.alloc_mthd & A2D_SBC_IE_ALLOC_MD_S)
+        pref_cap.alloc_mthd = A2D_SBC_IE_ALLOC_MD_S;
+
+    pref_cap.max_bitpool = src_cap.max_bitpool;
+    pref_cap.min_bitpool = src_cap.min_bitpool;
+
+    A2D_BldSbcInfo(AVDT_MEDIA_AUDIO, (tA2D_SBC_CIE *) &pref_cap, p_pref_cfg);
+}
+
+/*******************************************************************************
+ **
+ ** Function         bta_av_audio_sink_getconfig
+ **
+ ** Description      This callout function is executed by AV to retrieve the
+ **                  desired codec and content protection configuration for the
+ **                  A2DP Sink audio stream in Initiator.
+ **
+ **
+ ** Returns          Pass or Fail for current getconfig.
+ **
+ *******************************************************************************/
+UINT8 bta_av_audio_sink_getconfig(tBTA_AV_HNDL hndl, tBTA_AV_CODEC codec_type,
+        UINT8 *p_codec_info, UINT8 *p_sep_info_idx, UINT8 seid, UINT8 *p_num_protect,
+        UINT8 *p_protect_info)
+{
+
+    UINT8 result = A2D_FAIL;
+    BOOLEAN supported;
+    tBTA_AV_CO_PEER *p_peer;
+    tBTA_AV_CO_SINK *p_src;
+    UINT8 pref_cfg[AVDT_CODEC_SIZE];
+    UINT8 index;
+
+    FUNC_TRACE();
+
+    APPL_TRACE_DEBUG("bta_av_audio_sink_getconfig handle:0x%x codec_type:%d seid:%d",
+                                                               hndl, codec_type, seid);
+    APPL_TRACE_DEBUG("num_protect:0x%02x protect_info:0x%02x%02x%02x",
+        *p_num_protect, p_protect_info[0], p_protect_info[1], p_protect_info[2]);
+
+    /* Retrieve the peer info */
+    p_peer = bta_av_co_get_peer(hndl);
+    if (p_peer == NULL)
+    {
+        APPL_TRACE_ERROR("bta_av_audio_sink_getconfig could not find peer entry");
+        return A2D_FAIL;
+    }
+
+    APPL_TRACE_DEBUG("bta_av_audio_sink_getconfig peer(o=%d,n_snks=%d,n_rx_snks=%d,n_sup_snks=%d)",
+            p_peer->opened, p_peer->num_srcs, p_peer->num_rx_srcs, p_peer->num_sup_srcs);
+
+    p_peer->num_rx_srcs++;
+
+    /* Check if this is a supported configuration */
+    supported = FALSE;
+    switch (codec_type)
+    {
+        case BTA_AV_CODEC_SBC:
+            supported = TRUE;
+            break;
+
+        default:
+            break;
+    }
+
+    if (supported)
+    {
+        /* If there is room for a new one */
+        if (p_peer->num_sup_srcs < BTA_AV_CO_NUM_ELEMENTS(p_peer->srcs))
+        {
+            p_src = &p_peer->srcs[p_peer->num_sup_srcs++];
+
+            APPL_TRACE_DEBUG("bta_av_audio_sink_getconfig saved caps[%x:%x:%x:%x:%x:%x]",
+                    p_codec_info[1], p_codec_info[2], p_codec_info[3],
+                    p_codec_info[4], p_codec_info[5], p_codec_info[6]);
+
+            memcpy(p_src->codec_caps, p_codec_info, AVDT_CODEC_SIZE);
+            p_src->codec_type = codec_type;
+            p_src->sep_info_idx = *p_sep_info_idx;
+            p_src->seid = seid;
+            p_src->num_protect = *p_num_protect;
+            memcpy(p_src->protect_info, p_protect_info, BTA_AV_CP_INFO_LEN);
+        }
+        else
+        {
+            APPL_TRACE_ERROR("bta_av_audio_sink_getconfig no more room for SRC info");
+        }
+    }
+
+    /* If last SNK get capabilities or all supported codec caps retrieved */
+    if ((p_peer->num_rx_srcs == p_peer->num_srcs) ||
+        (p_peer->num_sup_srcs == BTA_AV_CO_NUM_ELEMENTS(p_peer->srcs)))
+    {
+        APPL_TRACE_DEBUG("bta_av_audio_sink_getconfig last SRC reached");
+
+        /* Protect access to bta_av_co_cb.codec_cfg */
+        mutex_global_lock();
+
+        /* Find a src that matches the codec config */
+        if (bta_av_co_audio_peer_src_supports_codec(p_peer, &index))
+        {
+            APPL_TRACE_DEBUG(" Codec Supported ");
+            p_src = &p_peer->srcs[index];
+
+            /* Build the codec configuration for this sink */
+            {
+                /* Save the new configuration */
+                p_peer->p_src = p_src;
+                /* get preferred config from src_caps */
+                bta_av_build_src_cfg(pref_cfg, p_src->codec_caps);
+                memcpy(p_peer->codec_cfg, pref_cfg, AVDT_CODEC_SIZE);
+
+                APPL_TRACE_DEBUG("bta_av_audio_sink_getconfig  p_codec_info[%x:%x:%x:%x:%x:%x]",
+                        p_peer->codec_cfg[1], p_peer->codec_cfg[2], p_peer->codec_cfg[3],
+                        p_peer->codec_cfg[4], p_peer->codec_cfg[5], p_peer->codec_cfg[6]);
+                /* By default, no content protection */
+                *p_num_protect = 0;
+
+#if defined(BTA_AV_CO_CP_SCMS_T) && (BTA_AV_CO_CP_SCMS_T == TRUE)
+                    p_peer->cp_active = FALSE;
+                    bta_av_co_cb.cp.active = FALSE;
+#endif
+
+                    *p_sep_info_idx = p_src->sep_info_idx;
+                    memcpy(p_codec_info, p_peer->codec_cfg, AVDT_CODEC_SIZE);
+                result =  A2D_SUCCESS;
+            }
+        }
+        /* Protect access to bta_av_co_cb.codec_cfg */
+        mutex_global_unlock();
+    }
+    return result;
+}
+/*******************************************************************************
+ **
+ ** Function         bta_av_co_audio_getconfig
+ **
+ ** Description      This callout function is executed by AV to retrieve the
+ **                  desired codec and content protection configuration for the
+ **                  audio stream.
+ **
+ **
+ ** Returns          Stream codec and content protection configuration info.
+ **
+ *******************************************************************************/
+UINT8 bta_av_co_audio_getconfig(tBTA_AV_HNDL hndl, tBTA_AV_CODEC codec_type,
+                                UINT8 *p_codec_info, UINT8 *p_sep_info_idx, UINT8 seid, UINT8 *p_num_protect,
+                                UINT8 *p_protect_info)
+
+{
+    UINT8 result = A2D_FAIL;
+    BOOLEAN supported;
+    tBTA_AV_CO_PEER *p_peer;
+    tBTA_AV_CO_SINK *p_sink;
+    UINT8 codec_cfg[AVDT_CODEC_SIZE];
+    UINT8 index;
+
+    FUNC_TRACE();
+
+    /* Retrieve the peer info */
+    p_peer = bta_av_co_get_peer(hndl);
+    if (p_peer == NULL)
+    {
+        APPL_TRACE_ERROR("bta_av_co_audio_getconfig could not find peer entry");
+        return A2D_FAIL;
+    }
+
+    if (p_peer->uuid_to_connect == UUID_SERVCLASS_AUDIO_SOURCE)
+    {
+        result = bta_av_audio_sink_getconfig(hndl, codec_type, p_codec_info, p_sep_info_idx,
+                                             seid, p_num_protect, p_protect_info);
+        return result;
+    }
+    APPL_TRACE_DEBUG("bta_av_co_audio_getconfig handle:0x%x codec_type:%d seid:%d",
+                                                              hndl, codec_type, seid);
+    APPL_TRACE_DEBUG("num_protect:0x%02x protect_info:0x%02x%02x%02x",
+        *p_num_protect, p_protect_info[0], p_protect_info[1], p_protect_info[2]);
+
+    APPL_TRACE_DEBUG("bta_av_co_audio_getconfig peer(o=%d,n_snks=%d,n_rx_snks=%d,n_sup_snks=%d)",
+            p_peer->opened, p_peer->num_snks, p_peer->num_rx_snks, p_peer->num_sup_snks);
+
+    p_peer->num_rx_snks++;
+
+    /* Check if this is a supported configuration */
+    supported = FALSE;
+    switch (codec_type)
+    {
+    case BTA_AV_CODEC_SBC:
+        supported = TRUE;
+        break;
+
+    default:
+        break;
+    }
+
+    if (supported)
+    {
+        /* If there is room for a new one */
+        if (p_peer->num_sup_snks < BTA_AV_CO_NUM_ELEMENTS(p_peer->snks))
+        {
+            p_sink = &p_peer->snks[p_peer->num_sup_snks++];
+
+            APPL_TRACE_DEBUG("bta_av_co_audio_getconfig saved caps[%x:%x:%x:%x:%x:%x]",
+                    p_codec_info[1], p_codec_info[2], p_codec_info[3],
+                    p_codec_info[4], p_codec_info[5], p_codec_info[6]);
+
+            memcpy(p_sink->codec_caps, p_codec_info, AVDT_CODEC_SIZE);
+            p_sink->codec_type = codec_type;
+            p_sink->sep_info_idx = *p_sep_info_idx;
+            p_sink->seid = seid;
+            p_sink->num_protect = *p_num_protect;
+            memcpy(p_sink->protect_info, p_protect_info, BTA_AV_CP_INFO_LEN);
+        }
+        else
+        {
+            APPL_TRACE_ERROR("bta_av_co_audio_getconfig no more room for SNK info");
+        }
+    }
+
+    /* If last SNK get capabilities or all supported codec capa retrieved */
+    if ((p_peer->num_rx_snks == p_peer->num_snks) ||
+        (p_peer->num_sup_snks == BTA_AV_CO_NUM_ELEMENTS(p_peer->snks)))
+    {
+        APPL_TRACE_DEBUG("bta_av_co_audio_getconfig last sink reached");
+
+        /* Protect access to bta_av_co_cb.codec_cfg */
+        mutex_global_lock();
+
+        /* Find a sink that matches the codec config */
+        if (bta_av_co_audio_peer_supports_codec(p_peer, &index))
+        {
+            /* stop fetching caps once we retrieved a supported codec */
+            if (p_peer->acp)
+            {
+                *p_sep_info_idx = p_peer->num_seps;
+                APPL_TRACE_EVENT("no need to fetch more SEPs");
+            }
+
+            p_sink = &p_peer->snks[index];
+
+            /* Build the codec configuration for this sink */
+            if (bta_av_co_audio_codec_build_config(p_sink->codec_caps, codec_cfg))
+            {
+                APPL_TRACE_DEBUG("bta_av_co_audio_getconfig reconfig p_codec_info[%x:%x:%x:%x:%x:%x]",
+                        codec_cfg[1], codec_cfg[2], codec_cfg[3],
+                        codec_cfg[4], codec_cfg[5], codec_cfg[6]);
+
+                /* Save the new configuration */
+                p_peer->p_snk = p_sink;
+                memcpy(p_peer->codec_cfg, codec_cfg, AVDT_CODEC_SIZE);
+
+                /* By default, no content protection */
+                *p_num_protect = 0;
+
+#if defined(BTA_AV_CO_CP_SCMS_T) && (BTA_AV_CO_CP_SCMS_T == TRUE)
+                /* Check if this sink supports SCMS */
+                if (bta_av_co_audio_sink_has_scmst(p_sink))
+                {
+                    p_peer->cp_active = TRUE;
+                    bta_av_co_cb.cp.active = TRUE;
+                    *p_num_protect = BTA_AV_CP_INFO_LEN;
+                    memcpy(p_protect_info, bta_av_co_cp_scmst, BTA_AV_CP_INFO_LEN);
+                }
+                else
+                {
+                    p_peer->cp_active = FALSE;
+                    bta_av_co_cb.cp.active = FALSE;
+                }
+#endif
+
+                /* If acceptor -> reconfig otherwise reply for configuration */
+                if (p_peer->acp)
+                {
+                    if (p_peer->recfg_needed)
+                    {
+                        APPL_TRACE_DEBUG("bta_av_co_audio_getconfig call BTA_AvReconfig(x%x)", hndl);
+                        BTA_AvReconfig(hndl, TRUE, p_sink->sep_info_idx, p_peer->codec_cfg, *p_num_protect, (UINT8 *)bta_av_co_cp_scmst);
+                    }
+                }
+                else
+                {
+                    *p_sep_info_idx = p_sink->sep_info_idx;
+                    memcpy(p_codec_info, p_peer->codec_cfg, AVDT_CODEC_SIZE);
+                }
+                result =  A2D_SUCCESS;
+            }
+        }
+        /* Protect access to bta_av_co_cb.codec_cfg */
+        mutex_global_unlock();
+    }
+    return result;
+}
+
+/*******************************************************************************
+ **
+ ** Function         bta_av_co_audio_setconfig
+ **
+ ** Description      This callout function is executed by AV to set the codec and
+ **                  content protection configuration of the audio stream.
+ **
+ **
+ ** Returns          void
+ **
+ *******************************************************************************/
+void bta_av_co_audio_setconfig(tBTA_AV_HNDL hndl, tBTA_AV_CODEC codec_type,
+        UINT8 *p_codec_info, UINT8 seid, BD_ADDR addr, UINT8 num_protect, UINT8 *p_protect_info,
+        UINT8 t_local_sep, UINT8 avdt_handle)
+{
+    tBTA_AV_CO_PEER *p_peer;
+    UINT8 status = A2D_SUCCESS;
+    UINT8 category = A2D_SUCCESS;
+    BOOLEAN recfg_needed = FALSE;
+    BOOLEAN codec_cfg_supported = FALSE;
+    UNUSED(seid);
+    UNUSED(addr);
+
+    FUNC_TRACE();
+
+    APPL_TRACE_DEBUG("bta_av_co_audio_setconfig p_codec_info[%x:%x:%x:%x:%x:%x]",
+            p_codec_info[1], p_codec_info[2], p_codec_info[3],
+            p_codec_info[4], p_codec_info[5], p_codec_info[6]);
+    APPL_TRACE_DEBUG("num_protect:0x%02x protect_info:0x%02x%02x%02x",
+        num_protect, p_protect_info[0], p_protect_info[1], p_protect_info[2]);
+
+    /* Retrieve the peer info */
+    p_peer = bta_av_co_get_peer(hndl);
+    if (p_peer == NULL)
+    {
+        APPL_TRACE_ERROR("bta_av_co_audio_setconfig could not find peer entry");
+
+        /* Call call-in rejecting the configuration */
+        bta_av_ci_setconfig(hndl, A2D_BUSY, AVDT_ASC_CODEC, 0, NULL, FALSE, avdt_handle);
+        return;
+    }
+    APPL_TRACE_DEBUG("bta_av_co_audio_setconfig peer(o=%d,n_snks=%d,n_rx_snks=%d,n_sup_snks=%d)",
+            p_peer->opened, p_peer->num_snks, p_peer->num_rx_snks, p_peer->num_sup_snks);
+
+    /* Sanity check: should not be opened at this point */
+    if (p_peer->opened)
+    {
+        APPL_TRACE_ERROR("bta_av_co_audio_setconfig peer already in use");
+    }
+
+#if defined(BTA_AV_CO_CP_SCMS_T) && (BTA_AV_CO_CP_SCMS_T == TRUE)
+    if (num_protect != 0)
+    {
+        /* If CP is supported */
+        if ((num_protect != 1) ||
+            (bta_av_co_cp_is_scmst(p_protect_info) == FALSE))
+        {
+            APPL_TRACE_ERROR("bta_av_co_audio_setconfig wrong CP configuration");
+            status = A2D_BAD_CP_TYPE;
+            category = AVDT_ASC_PROTECT;
+        }
+    }
+#else
+    /* Do not support content protection for the time being */
+    if (num_protect != 0)
+    {
+        APPL_TRACE_ERROR("bta_av_co_audio_setconfig wrong CP configuration");
+        status = A2D_BAD_CP_TYPE;
+        category = AVDT_ASC_PROTECT;
+    }
+#endif
+    if (status == A2D_SUCCESS)
+    {
+        if(AVDT_TSEP_SNK == t_local_sep)
+        {
+            codec_cfg_supported = bta_av_co_audio_sink_supports_config(codec_type, p_codec_info);
+            APPL_TRACE_DEBUG(" Peer is  A2DP SRC ");
+        }
+        if(AVDT_TSEP_SRC == t_local_sep)
+        {
+            codec_cfg_supported = bta_av_co_audio_media_supports_config(codec_type, p_codec_info);
+            APPL_TRACE_DEBUG(" Peer is A2DP SINK ");
+        }
+        /* Check if codec configuration is supported */
+        if (codec_cfg_supported)
+        {
+
+            /* Protect access to bta_av_co_cb.codec_cfg */
+            mutex_global_lock();
+
+            /* Check if the configuration matches the current codec config */
+            switch (bta_av_co_cb.codec_cfg.id)
+            {
+            case BTIF_AV_CODEC_SBC:
+                if ((codec_type != BTA_AV_CODEC_SBC) || memcmp(p_codec_info, bta_av_co_cb.codec_cfg.info, 5))
+                {
+                    recfg_needed = TRUE;
+                }
+                else if ((num_protect == 1) && (!bta_av_co_cb.cp.active))
+                {
+                    recfg_needed = TRUE;
+                }
+
+                /* if remote side requests a restricted notify sinks preferred bitpool range as all other params are
+                   already checked for validify */
+                APPL_TRACE_EVENT("remote peer setconfig bitpool range [%d:%d]",
+                   p_codec_info[BTA_AV_CO_SBC_MIN_BITPOOL_OFF],
+                   p_codec_info[BTA_AV_CO_SBC_MAX_BITPOOL_OFF] );
+
+                bta_av_co_cb.codec_cfg_setconfig.id = BTIF_AV_CODEC_SBC;
+                memcpy(bta_av_co_cb.codec_cfg_setconfig.info, p_codec_info, AVDT_CODEC_SIZE);
+                if(AVDT_TSEP_SNK == t_local_sep)
+                {
+                    /* If Peer is SRC, and our cfg subset matches with what is requested by peer, then
+                                         just accept what peer wants */
+                    memcpy(bta_av_co_cb.codec_cfg.info, p_codec_info, AVDT_CODEC_SIZE);
+                    recfg_needed = FALSE;
+                }
+                break;
+
+
+            default:
+                APPL_TRACE_ERROR("bta_av_co_audio_setconfig unsupported cid %d", bta_av_co_cb.codec_cfg.id);
+                recfg_needed = TRUE;
+                break;
+            }
+            /* Protect access to bta_av_co_cb.codec_cfg */
+            mutex_global_unlock();
+        }
+        else
+        {
+            category = AVDT_ASC_CODEC;
+            status = A2D_WRONG_CODEC;
+        }
+    }
+
+    if (status != A2D_SUCCESS)
+    {
+        APPL_TRACE_DEBUG("bta_av_co_audio_setconfig reject s=%d c=%d", status, category);
+
+        /* Call call-in rejecting the configuration */
+        bta_av_ci_setconfig(hndl, status, category, 0, NULL, FALSE, avdt_handle);
+    }
+    else
+    {
+        /* Mark that this is an acceptor peer */
+        p_peer->acp = TRUE;
+        p_peer->recfg_needed = recfg_needed;
+
+        APPL_TRACE_DEBUG("bta_av_co_audio_setconfig accept reconf=%d", recfg_needed);
+
+        /* Call call-in accepting the configuration */
+        bta_av_ci_setconfig(hndl, A2D_SUCCESS, A2D_SUCCESS, 0, NULL, recfg_needed, avdt_handle);
+    }
+}
+
+/*******************************************************************************
+ **
+ ** Function         bta_av_co_audio_open
+ **
+ ** Description      This function is called by AV when the audio stream connection
+ **                  is opened.
+ **
+ **
+ ** Returns          void
+ **
+ *******************************************************************************/
+void bta_av_co_audio_open(tBTA_AV_HNDL hndl, tBTA_AV_CODEC codec_type, UINT8 *p_codec_info,
+                          UINT16 mtu)
+{
+    tBTA_AV_CO_PEER *p_peer;
+    UNUSED(p_codec_info);
+
+    FUNC_TRACE();
+
+    APPL_TRACE_DEBUG("bta_av_co_audio_open mtu:%d codec_type:%d", mtu, codec_type);
+
+    /* Retrieve the peer info */
+    p_peer = bta_av_co_get_peer(hndl);
+    if (p_peer == NULL)
+    {
+        APPL_TRACE_ERROR("bta_av_co_audio_setconfig could not find peer entry");
+    }
+    else
+    {
+        p_peer->opened = TRUE;
+        p_peer->mtu = mtu;
+    }
+}
+
+/*******************************************************************************
+ **
+ ** Function         bta_av_co_audio_close
+ **
+ ** Description      This function is called by AV when the audio stream connection
+ **                  is closed.
+ **
+ **
+ ** Returns          void
+ **
+ *******************************************************************************/
+void bta_av_co_audio_close(tBTA_AV_HNDL hndl, tBTA_AV_CODEC codec_type, UINT16 mtu)
+
+{
+    tBTA_AV_CO_PEER *p_peer;
+    UNUSED(codec_type);
+    UNUSED(mtu);
+
+    FUNC_TRACE();
+
+    APPL_TRACE_DEBUG("bta_av_co_audio_close");
+
+    /* Retrieve the peer info */
+    p_peer = bta_av_co_get_peer(hndl);
+    if (p_peer)
+    {
+        /* Mark the peer closed and clean the peer info */
+        memset(p_peer, 0, sizeof(*p_peer));
+    }
+    else
+    {
+        APPL_TRACE_ERROR("bta_av_co_audio_close could not find peer entry");
+    }
+
+    /* reset remote preference through setconfig */
+    bta_av_co_cb.codec_cfg_setconfig.id = BTIF_AV_CODEC_NONE;
+}
+
+/*******************************************************************************
+ **
+ ** Function         bta_av_co_audio_start
+ **
+ ** Description      This function is called by AV when the audio streaming data
+ **                  transfer is started.
+ **
+ **
+ ** Returns          void
+ **
+ *******************************************************************************/
+void bta_av_co_audio_start(tBTA_AV_HNDL hndl, tBTA_AV_CODEC codec_type,
+                           UINT8 *p_codec_info, BOOLEAN *p_no_rtp_hdr)
+{
+    UNUSED(hndl);
+    UNUSED(codec_type);
+    UNUSED(p_codec_info);
+    UNUSED(p_no_rtp_hdr);
+
+    FUNC_TRACE();
+
+    APPL_TRACE_DEBUG("bta_av_co_audio_start");
+
+}
+
+/*******************************************************************************
+ **
+ ** Function         bta_av_co_audio_stop
+ **
+ ** Description      This function is called by AV when the audio streaming data
+ **                  transfer is stopped.
+ **
+ **
+ ** Returns          void
+ **
+ *******************************************************************************/
+extern void bta_av_co_audio_stop(tBTA_AV_HNDL hndl, tBTA_AV_CODEC codec_type)
+{
+    UNUSED(hndl);
+    UNUSED(codec_type);
+
+    FUNC_TRACE();
+
+    APPL_TRACE_DEBUG("bta_av_co_audio_stop");
+}
+
+/*******************************************************************************
+ **
+ ** Function         bta_av_co_audio_src_data_path
+ **
+ ** Description      This function is called to manage data transfer from
+ **                  the audio codec to AVDTP.
+ **
+ ** Returns          Pointer to the GKI buffer to send, NULL if no buffer to send
+ **
+ *******************************************************************************/
+void * bta_av_co_audio_src_data_path(tBTA_AV_CODEC codec_type, UINT32 *p_len,
+                                     UINT32 *p_timestamp)
+{
+    BT_HDR *p_buf;
+    UNUSED(p_len);
+
+    FUNC_TRACE();
+
+    p_buf = btif_media_aa_readbuf();
+    if (p_buf != NULL)
+    {
+        switch (codec_type)
+        {
+        case BTA_AV_CODEC_SBC:
+            /* In media packet SBC, the following information is available:
+             * p_buf->layer_specific : number of SBC frames in the packet
+             * p_buf->word[0] : timestamp
+             */
+            /* Retrieve the timestamp information from the media packet */
+            *p_timestamp = *((UINT32 *) (p_buf + 1));
+
+            /* Set up packet header */
+            bta_av_sbc_bld_hdr(p_buf, p_buf->layer_specific);
+            break;
+
+
+        default:
+            APPL_TRACE_ERROR("bta_av_co_audio_src_data_path Unsupported codec type (%d)", codec_type);
+            break;
+        }
+#if defined(BTA_AV_CO_CP_SCMS_T) && (BTA_AV_CO_CP_SCMS_T == TRUE)
+        {
+            UINT8 *p;
+            if (bta_av_co_cp_is_active())
+            {
+                p_buf->len++;
+                p_buf->offset--;
+                p = (UINT8 *)(p_buf + 1) + p_buf->offset;
+                *p = bta_av_co_cp_get_flag();
+            }
+        }
+#endif
+    }
+    return p_buf;
+}
+
+/*******************************************************************************
+ **
+ ** Function         bta_av_co_audio_drop
+ **
+ ** Description      An Audio packet is dropped. .
+ **                  It's very likely that the connected headset with this handle
+ **                  is moved far away. The implementation may want to reduce
+ **                  the encoder bit rate setting to reduce the packet size.
+ **
+ ** Returns          void
+ **
+ *******************************************************************************/
+void bta_av_co_audio_drop(tBTA_AV_HNDL hndl)
+{
+    FUNC_TRACE();
+
+    APPL_TRACE_ERROR("bta_av_co_audio_drop dropped: x%x", hndl);
+}
+
+/*******************************************************************************
+ **
+ ** Function         bta_av_co_audio_delay
+ **
+ ** Description      This function is called by AV when the audio stream connection
+ **                  needs to send the initial delay report to the connected SRC.
+ **
+ **
+ ** Returns          void
+ **
+ *******************************************************************************/
+void bta_av_co_audio_delay(tBTA_AV_HNDL hndl, UINT16 delay)
+{
+    FUNC_TRACE();
+
+    APPL_TRACE_ERROR("bta_av_co_audio_delay handle: x%x, delay:0x%x", hndl, delay);
+}
+
+
+
+/*******************************************************************************
+ **
+ ** Function         bta_av_co_audio_codec_build_config
+ **
+ ** Description      Build the codec configuration
+ **
+ ** Returns          TRUE if the codec was built successfully, FALSE otherwise
+ **
+ *******************************************************************************/
+static BOOLEAN bta_av_co_audio_codec_build_config(const UINT8 *p_codec_caps, UINT8 *p_codec_cfg)
+{
+    FUNC_TRACE();
+
+    memset(p_codec_cfg, 0, AVDT_CODEC_SIZE);
+
+    switch (bta_av_co_cb.codec_cfg.id)
+    {
+    case BTIF_AV_CODEC_SBC:
+        /*  only copy the relevant portions for this codec to avoid issues when
+            comparing codec configs covering larger codec sets than SBC (7 bytes) */
+        memcpy(p_codec_cfg, bta_av_co_cb.codec_cfg.info, BTA_AV_CO_SBC_MAX_BITPOOL_OFF+1);
+
+        /* Update the bit pool boundaries with the codec capabilities */
+        p_codec_cfg[BTA_AV_CO_SBC_MIN_BITPOOL_OFF] = p_codec_caps[BTA_AV_CO_SBC_MIN_BITPOOL_OFF];
+        p_codec_cfg[BTA_AV_CO_SBC_MAX_BITPOOL_OFF] = p_codec_caps[BTA_AV_CO_SBC_MAX_BITPOOL_OFF];
+
+        APPL_TRACE_EVENT("bta_av_co_audio_codec_build_config : bitpool min %d, max %d",
+                    p_codec_cfg[BTA_AV_CO_SBC_MIN_BITPOOL_OFF],
+                    p_codec_caps[BTA_AV_CO_SBC_MAX_BITPOOL_OFF]);
+        break;
+    default:
+        APPL_TRACE_ERROR("bta_av_co_audio_codec_build_config: unsupported codec id %d", bta_av_co_cb.codec_cfg.id);
+        return FALSE;
+        break;
+    }
+    return TRUE;
+}
+
+/*******************************************************************************
+ **
+ ** Function         bta_av_co_audio_codec_cfg_matches_caps
+ **
+ ** Description      Check if a codec config matches a codec capabilities
+ **
+ ** Returns          TRUE if it codec config is supported, FALSE otherwise
+ **
+ *******************************************************************************/
+static BOOLEAN bta_av_co_audio_codec_cfg_matches_caps(UINT8 codec_id, const UINT8 *p_codec_caps, const UINT8 *p_codec_cfg)
+{
+    FUNC_TRACE();
+
+    switch(codec_id)
+    {
+    case BTIF_AV_CODEC_SBC:
+
+        APPL_TRACE_EVENT("bta_av_co_audio_codec_cfg_matches_caps : min %d/%d max %d/%d",
+           p_codec_caps[BTA_AV_CO_SBC_MIN_BITPOOL_OFF],
+           p_codec_cfg[BTA_AV_CO_SBC_MIN_BITPOOL_OFF],
+           p_codec_caps[BTA_AV_CO_SBC_MAX_BITPOOL_OFF],
+           p_codec_cfg[BTA_AV_CO_SBC_MAX_BITPOOL_OFF]);
+
+        /* Must match all items exactly except bitpool boundaries which can be adjusted */
+        if (!((p_codec_caps[BTA_AV_CO_SBC_FREQ_CHAN_OFF] & p_codec_cfg[BTA_AV_CO_SBC_FREQ_CHAN_OFF]) &&
+              (p_codec_caps[BTA_AV_CO_SBC_BLOCK_BAND_OFF] & p_codec_cfg[BTA_AV_CO_SBC_BLOCK_BAND_OFF])))
+        {
+            APPL_TRACE_EVENT("FALSE %x %x %x %x",
+                    p_codec_caps[BTA_AV_CO_SBC_FREQ_CHAN_OFF],
+                    p_codec_cfg[BTA_AV_CO_SBC_FREQ_CHAN_OFF],
+                    p_codec_caps[BTA_AV_CO_SBC_BLOCK_BAND_OFF],
+                    p_codec_cfg[BTA_AV_CO_SBC_BLOCK_BAND_OFF]);
+            return FALSE;
+        }
+        break;
+
+
+    default:
+        APPL_TRACE_ERROR("bta_av_co_audio_codec_cfg_matches_caps: unsupported codec id %d", codec_id);
+        return FALSE;
+        break;
+    }
+    APPL_TRACE_EVENT("TRUE");
+
+    return TRUE;
+}
+
+/*******************************************************************************
+ **
+ ** Function         bta_av_co_audio_codec_match
+ **
+ ** Description      Check if a codec capabilities supports the codec config
+ **
+ ** Returns          TRUE if the connection supports this codec, FALSE otherwise
+ **
+ *******************************************************************************/
+static BOOLEAN bta_av_co_audio_codec_match(const UINT8 *p_codec_caps)
+{
+    FUNC_TRACE();
+
+    return bta_av_co_audio_codec_cfg_matches_caps(bta_av_co_cb.codec_cfg.id, p_codec_caps, bta_av_co_cb.codec_cfg.info);
+}
+
+/*******************************************************************************
+ **
+ ** Function         bta_av_co_audio_peer_reset_config
+ **
+ ** Description      Reset the peer codec configuration
+ **
+ ** Returns          Nothing
+ **
+ *******************************************************************************/
+static void bta_av_co_audio_peer_reset_config(tBTA_AV_CO_PEER *p_peer)
+{
+    FUNC_TRACE();
+
+    /* Indicate that there is no currently selected sink */
+    p_peer->p_snk = NULL;
+}
+
+/*******************************************************************************
+ **
+ ** Function         bta_av_co_cp_is_scmst
+ **
+ ** Description      Check if a content protection service is SCMS-T
+ **
+ ** Returns          TRUE if this CP is SCMS-T, FALSE otherwise
+ **
+ *******************************************************************************/
+static BOOLEAN bta_av_co_cp_is_scmst(const UINT8 *p_protectinfo)
+{
+    UINT16 cp_id;
+    FUNC_TRACE();
+
+    if (*p_protectinfo >= BTA_AV_CP_LOSC)
+    {
+        p_protectinfo++;
+        STREAM_TO_UINT16(cp_id, p_protectinfo);
+        if (cp_id == BTA_AV_CP_SCMS_T_ID)
+        {
+            APPL_TRACE_DEBUG("bta_av_co_cp_is_scmst: SCMS-T found");
+            return TRUE;
+        }
+    }
+
+    return FALSE;
+}
+
+/*******************************************************************************
+ **
+ ** Function         bta_av_co_audio_sink_has_scmst
+ **
+ ** Description      Check if a sink supports SCMS-T
+ **
+ ** Returns          TRUE if the sink supports this CP, FALSE otherwise
+ **
+ *******************************************************************************/
+static BOOLEAN bta_av_co_audio_sink_has_scmst(const tBTA_AV_CO_SINK *p_sink)
+{
+    UINT8 index;
+    const UINT8 *p;
+    FUNC_TRACE();
+
+    /* Check if sink supports SCMS-T */
+    index = p_sink->num_protect;
+    p = &p_sink->protect_info[0];
+
+    while (index)
+    {
+        if (bta_av_co_cp_is_scmst(p))
+        {
+            return TRUE;
+        }
+        /* Move to the next SC */
+        p += *p + 1;
+        /* Decrement the SC counter */
+        index--;
+    }
+    APPL_TRACE_DEBUG("bta_av_co_audio_sink_has_scmst: SCMS-T not found");
+    return FALSE;
+}
+
+/*******************************************************************************
+ **
+ ** Function         bta_av_co_audio_sink_supports_cp
+ **
+ ** Description      Check if a sink supports the current content protection
+ **
+ ** Returns          TRUE if the sink supports this CP, FALSE otherwise
+ **
+ *******************************************************************************/
+static BOOLEAN bta_av_co_audio_sink_supports_cp(const tBTA_AV_CO_SINK *p_sink)
+{
+    FUNC_TRACE();
+
+    /* Check if content protection is enabled for this stream */
+    if (bta_av_co_cp_get_flag() != BTA_AV_CP_SCMS_COPY_FREE)
+    {
+        return bta_av_co_audio_sink_has_scmst(p_sink);
+    }
+    else
+    {
+        APPL_TRACE_DEBUG("bta_av_co_audio_sink_supports_cp: not required");
+        return TRUE;
+    }
+}
+
+/*******************************************************************************
+ **
+ ** Function         bta_av_co_audio_peer_supports_codec
+ **
+ ** Description      Check if a connection supports the codec config
+ **
+ ** Returns          TRUE if the connection supports this codec, FALSE otherwise
+ **
+ *******************************************************************************/
+static BOOLEAN bta_av_co_audio_peer_supports_codec(tBTA_AV_CO_PEER *p_peer, UINT8 *p_snk_index)
+{
+    int index;
+    UINT8 codec_type;
+    FUNC_TRACE();
+
+    /* Configure the codec type to look for */
+    codec_type = bta_av_co_cb.codec_cfg.id;
+
+
+    for (index = 0; index < p_peer->num_sup_snks; index++)
+    {
+        if (p_peer->snks[index].codec_type == codec_type)
+        {
+            switch (bta_av_co_cb.codec_cfg.id)
+            {
+            case BTIF_AV_CODEC_SBC:
+                if (p_snk_index) *p_snk_index = index;
+                return bta_av_co_audio_codec_match(p_peer->snks[index].codec_caps);
+                break;
+
+
+            default:
+                APPL_TRACE_ERROR("bta_av_co_audio_peer_supports_codec: unsupported codec id %d", bta_av_co_cb.codec_cfg.id);
+                return FALSE;
+                break;
+            }
+        }
+    }
+    return FALSE;
+}
+
+/*******************************************************************************
+ **
+ ** Function         bta_av_co_audio_peer_src_supports_codec
+ **
+ ** Description      Check if a peer acting as src supports codec config
+ **
+ ** Returns          TRUE if the connection supports this codec, FALSE otherwise
+ **
+ *******************************************************************************/
+static BOOLEAN bta_av_co_audio_peer_src_supports_codec(tBTA_AV_CO_PEER *p_peer, UINT8 *p_src_index)
+{
+    int index;
+    UINT8 codec_type;
+    FUNC_TRACE();
+
+    /* Configure the codec type to look for */
+    codec_type = bta_av_co_cb.codec_cfg.id;
+
+
+    for (index = 0; index < p_peer->num_sup_srcs; index++)
+    {
+        if (p_peer->srcs[index].codec_type == codec_type)
+        {
+            switch (bta_av_co_cb.codec_cfg.id)
+            {
+            case BTIF_AV_CODEC_SBC:
+                if (p_src_index) *p_src_index = index;
+                if (0 ==  bta_av_sbc_cfg_matches_cap((UINT8 *)p_peer->srcs[index].codec_caps,
+                                                     (tA2D_SBC_CIE *)&bta_av_co_sbc_sink_caps))
+                {
+                    return TRUE;
+                }
+                break;
+
+            default:
+                APPL_TRACE_ERROR("peer_src_supports_codec: unsupported codec id %d",
+                                                            bta_av_co_cb.codec_cfg.id);
+                return FALSE;
+                break;
+            }
+        }
+    }
+    return FALSE;
+}
+
+/*******************************************************************************
+ **
+ ** Function         bta_av_co_audio_sink_supports_config
+ **
+ ** Description      Check if the media source supports a given configuration
+ **
+ ** Returns          TRUE if the media source supports this config, FALSE otherwise
+ **
+ *******************************************************************************/
+static BOOLEAN bta_av_co_audio_sink_supports_config(UINT8 codec_type, const UINT8 *p_codec_cfg)
+{
+    FUNC_TRACE();
+
+    switch (codec_type)
+    {
+    case BTA_AV_CODEC_SBC:
+        if (bta_av_sbc_cfg_in_cap((UINT8 *)p_codec_cfg, (tA2D_SBC_CIE *)&bta_av_co_sbc_sink_caps))
+        {
+            return FALSE;
+        }
+        break;
+
+
+    default:
+        APPL_TRACE_ERROR("bta_av_co_audio_media_supports_config unsupported codec type %d", codec_type);
+        return FALSE;
+        break;
+    }
+    return TRUE;
+}
+
+/*******************************************************************************
+ **
+ ** Function         bta_av_co_audio_media_supports_config
+ **
+ ** Description      Check if the media sink supports a given configuration
+ **
+ ** Returns          TRUE if the media source supports this config, FALSE otherwise
+ **
+ *******************************************************************************/
+static BOOLEAN bta_av_co_audio_media_supports_config(UINT8 codec_type, const UINT8 *p_codec_cfg)
+{
+    FUNC_TRACE();
+
+    switch (codec_type)
+    {
+    case BTA_AV_CODEC_SBC:
+        if (bta_av_sbc_cfg_in_cap((UINT8 *)p_codec_cfg, (tA2D_SBC_CIE *)&bta_av_co_sbc_caps))
+        {
+            return FALSE;
+        }
+        break;
+
+
+    default:
+        APPL_TRACE_ERROR("bta_av_co_audio_media_supports_config unsupported codec type %d", codec_type);
+        return FALSE;
+        break;
+    }
+    return TRUE;
+}
+
+/*******************************************************************************
+ **
+ ** Function         bta_av_co_audio_codec_supported
+ **
+ ** Description      Check if all opened connections are compatible with a codec
+ **                  configuration and content protection
+ **
+ ** Returns          TRUE if all opened devices support this codec, FALSE otherwise
+ **
+ *******************************************************************************/
+BOOLEAN bta_av_co_audio_codec_supported(tBTIF_STATUS *p_status)
+{
+    UINT8 index;
+    UINT8 snk_index;
+    tBTA_AV_CO_PEER *p_peer;
+    tBTA_AV_CO_SINK *p_sink;
+    UINT8 codec_cfg[AVDT_CODEC_SIZE];
+    UINT8 num_protect = 0;
+#if defined(BTA_AV_CO_CP_SCMS_T) && (BTA_AV_CO_CP_SCMS_T == TRUE)
+    BOOLEAN cp_active;
+#endif
+
+    FUNC_TRACE();
+
+    APPL_TRACE_DEBUG("bta_av_co_audio_codec_supported");
+
+    /* Check AV feeding is supported */
+    *p_status = BTIF_ERROR_SRV_AV_FEEDING_NOT_SUPPORTED;
+
+    for (index = 0; index < BTA_AV_CO_NUM_ELEMENTS(bta_av_co_cb.peers); index++)
+    {
+        p_peer = &bta_av_co_cb.peers[index];
+        if (p_peer->opened)
+        {
+            if (bta_av_co_audio_peer_supports_codec(p_peer, &snk_index))
+            {
+                p_sink = &p_peer->snks[snk_index];
+
+                /* Check that this sink is compatible with the CP */
+                if (!bta_av_co_audio_sink_supports_cp(p_sink))
+                {
+                    APPL_TRACE_DEBUG("bta_av_co_audio_codec_supported sink %d of peer %d doesn't support cp",
+                            snk_index, index);
+                    *p_status = BTIF_ERROR_SRV_AV_CP_NOT_SUPPORTED;
+                    return FALSE;
+                }
+
+                /* Build the codec configuration for this sink */
+                if (bta_av_co_audio_codec_build_config(p_sink->codec_caps, codec_cfg))
+                {
+#if defined(BTA_AV_CO_CP_SCMS_T) && (BTA_AV_CO_CP_SCMS_T == TRUE)
+                    /* Check if this sink supports SCMS */
+                    cp_active = bta_av_co_audio_sink_has_scmst(p_sink);
+#endif
+                    /* Check if this is a new configuration (new sink or new config) */
+                    if ((p_sink != p_peer->p_snk) ||
+                        (memcmp(codec_cfg, p_peer->codec_cfg, AVDT_CODEC_SIZE))
+#if defined(BTA_AV_CO_CP_SCMS_T) && (BTA_AV_CO_CP_SCMS_T == TRUE)
+                        || (p_peer->cp_active != cp_active)
+#endif
+                        )
+                    {
+                        /* Save the new configuration */
+                        p_peer->p_snk = p_sink;
+                        memcpy(p_peer->codec_cfg, codec_cfg, AVDT_CODEC_SIZE);
+#if defined(BTA_AV_CO_CP_SCMS_T) && (BTA_AV_CO_CP_SCMS_T == TRUE)
+                        p_peer->cp_active = cp_active;
+                        if (p_peer->cp_active)
+                        {
+                            bta_av_co_cb.cp.active = TRUE;
+                            num_protect = BTA_AV_CP_INFO_LEN;
+                        }
+                        else
+                        {
+                            bta_av_co_cb.cp.active = FALSE;
+                        }
+#endif
+                        APPL_TRACE_DEBUG("bta_av_co_audio_codec_supported call BTA_AvReconfig(x%x)", BTA_AV_CO_AUDIO_INDX_TO_HNDL(index));
+                        BTA_AvReconfig(BTA_AV_CO_AUDIO_INDX_TO_HNDL(index), TRUE, p_sink->sep_info_idx,
+                                p_peer->codec_cfg, num_protect, (UINT8 *)bta_av_co_cp_scmst);
+                    }
+                }
+            }
+            else
+            {
+                APPL_TRACE_DEBUG("bta_av_co_audio_codec_supported index %d doesn't support codec", index);
+                return FALSE;
+            }
+        }
+    }
+
+    *p_status = BTIF_SUCCESS;
+    return TRUE;
+}
+
+/*******************************************************************************
+ **
+ ** Function         bta_av_co_audio_codec_reset
+ **
+ ** Description      Reset the current codec configuration
+ **
+ ** Returns          void
+ **
+ *******************************************************************************/
+void bta_av_co_audio_codec_reset(void)
+{
+    mutex_global_lock();
+    FUNC_TRACE();
+
+    /* Reset the current configuration to SBC */
+    bta_av_co_cb.codec_cfg.id = BTIF_AV_CODEC_SBC;
+
+    if (A2D_BldSbcInfo(A2D_MEDIA_TYPE_AUDIO, (tA2D_SBC_CIE *)&btif_av_sbc_default_config, bta_av_co_cb.codec_cfg.info) != A2D_SUCCESS)
+    {
+        APPL_TRACE_ERROR("bta_av_co_audio_codec_reset A2D_BldSbcInfo failed");
+    }
+
+    mutex_global_unlock();
+}
+
+/*******************************************************************************
+ **
+ ** Function         bta_av_co_audio_set_codec
+ **
+ ** Description      Set the current codec configuration from the feeding type.
+ **                  This function is starting to modify the configuration, it
+ **                  should be protected.
+ **
+ ** Returns          TRUE if successful, FALSE otherwise
+ **
+ *******************************************************************************/
+BOOLEAN bta_av_co_audio_set_codec(const tBTIF_AV_MEDIA_FEEDINGS *p_feeding, tBTIF_STATUS *p_status)
+{
+    tA2D_SBC_CIE sbc_config;
+    tBTIF_AV_CODEC_INFO new_cfg;
+
+    FUNC_TRACE();
+
+    /* Check AV feeding is supported */
+    *p_status = BTIF_ERROR_SRV_AV_FEEDING_NOT_SUPPORTED;
+
+    APPL_TRACE_DEBUG("bta_av_co_audio_set_codec cid=%d", p_feeding->format);
+
+    /* Supported codecs */
+    switch (p_feeding->format)
+    {
+    case BTIF_AV_CODEC_PCM:
+        new_cfg.id = BTIF_AV_CODEC_SBC;
+
+        sbc_config = btif_av_sbc_default_config;
+        if ((p_feeding->cfg.pcm.num_channel != 1) &&
+            (p_feeding->cfg.pcm.num_channel != 2))
+        {
+            APPL_TRACE_ERROR("bta_av_co_audio_set_codec PCM channel number unsupported");
+            return FALSE;
+        }
+        if ((p_feeding->cfg.pcm.bit_per_sample != 8) &&
+            (p_feeding->cfg.pcm.bit_per_sample != 16))
+        {
+            APPL_TRACE_ERROR("bta_av_co_audio_set_codec PCM sample size unsupported");
+            return FALSE;
+        }
+        switch (p_feeding->cfg.pcm.sampling_freq)
+        {
+        case 8000:
+        case 12000:
+        case 16000:
+        case 24000:
+        case 32000:
+        case 48000:
+            sbc_config.samp_freq = A2D_SBC_IE_SAMP_FREQ_48;
+            break;
+
+        case 11025:
+        case 22050:
+        case 44100:
+            sbc_config.samp_freq = A2D_SBC_IE_SAMP_FREQ_44;
+            break;
+        default:
+            APPL_TRACE_ERROR("bta_av_co_audio_set_codec PCM sampling frequency unsupported");
+            return FALSE;
+            break;
+        }
+        /* Build the codec config */
+        if (A2D_BldSbcInfo(A2D_MEDIA_TYPE_AUDIO, &sbc_config, new_cfg.info) != A2D_SUCCESS)
+        {
+            APPL_TRACE_ERROR("bta_av_co_audio_set_codec A2D_BldSbcInfo failed");
+            return FALSE;
+        }
+        break;
+
+
+    default:
+        APPL_TRACE_ERROR("bta_av_co_audio_set_codec Feeding format unsupported");
+        return FALSE;
+        break;
+    }
+
+    /* The new config was correctly built */
+    bta_av_co_cb.codec_cfg = new_cfg;
+
+
+    /* Check all devices support it */
+    *p_status = BTIF_SUCCESS;
+    return bta_av_co_audio_codec_supported(p_status);
+}
+
+/*******************************************************************************
+ **
+ ** Function         bta_av_co_audio_get_sbc_config
+ **
+ ** Description      Retrieves the SBC codec configuration.  If the codec in use
+ **                  is not SBC, return the default SBC codec configuration.
+ **
+ ** Returns          TRUE if codec is SBC, FALSE otherwise
+ **
+ *******************************************************************************/
+BOOLEAN bta_av_co_audio_get_sbc_config(tA2D_SBC_CIE *p_sbc_config, UINT16 *p_minmtu)
+{
+    BOOLEAN result = FALSE;
+    UINT8 index, jndex;
+    tBTA_AV_CO_PEER *p_peer;
+    tBTA_AV_CO_SINK *p_sink;
+
+    APPL_TRACE_EVENT("bta_av_co_cb.codec_cfg.id : codec 0x%x", bta_av_co_cb.codec_cfg.id);
+
+    /* Minimum MTU is by default very large */
+    *p_minmtu = 0xFFFF;
+
+    mutex_global_lock();
+    if (bta_av_co_cb.codec_cfg.id == BTIF_AV_CODEC_SBC)
+    {
+        if (A2D_ParsSbcInfo(p_sbc_config, bta_av_co_cb.codec_cfg.info, FALSE) == A2D_SUCCESS)
+        {
+            for (index = 0; index < BTA_AV_CO_NUM_ELEMENTS(bta_av_co_cb.peers); index++)
+            {
+                p_peer = &bta_av_co_cb.peers[index];
+                if (p_peer->opened)
+                {
+                    if (p_peer->mtu < *p_minmtu)
+                    {
+                        *p_minmtu = p_peer->mtu;
+                    }
+                    for (jndex = 0; jndex < p_peer->num_sup_snks; jndex++)
+                    {
+                        p_sink = &p_peer->snks[jndex];
+                        if (p_sink->codec_type == A2D_MEDIA_CT_SBC)
+                        {
+                            /* Update the bitpool boundaries of the current config */
+                            p_sbc_config->min_bitpool =
+                               BTA_AV_CO_MAX(p_sink->codec_caps[BTA_AV_CO_SBC_MIN_BITPOOL_OFF],
+                                             p_sbc_config->min_bitpool);
+                            p_sbc_config->max_bitpool =
+                               BTA_AV_CO_MIN(p_sink->codec_caps[BTA_AV_CO_SBC_MAX_BITPOOL_OFF],
+                                             p_sbc_config->max_bitpool);
+                            APPL_TRACE_EVENT("bta_av_co_audio_get_sbc_config : sink bitpool min %d, max %d",
+                                 p_sbc_config->min_bitpool, p_sbc_config->max_bitpool);
+                            break;
+                        }
+                    }
+                }
+            }
+            result = TRUE;
+        }
+    }
+
+    if (!result)
+    {
+        /* Not SBC, still return the default values */
+        *p_sbc_config = btif_av_sbc_default_config;
+    }
+    mutex_global_unlock();
+
+    return result;
+}
+
+/*******************************************************************************
+ **
+ ** Function         bta_av_co_audio_discard_config
+ **
+ ** Description      Discard the codec configuration of a connection
+ **
+ ** Returns          Nothing
+ **
+ *******************************************************************************/
+void bta_av_co_audio_discard_config(tBTA_AV_HNDL hndl)
+{
+    tBTA_AV_CO_PEER *p_peer;
+
+    FUNC_TRACE();
+
+    /* Find the peer info */
+    p_peer = bta_av_co_get_peer(hndl);
+    if (p_peer == NULL)
+    {
+        APPL_TRACE_ERROR("bta_av_co_audio_discard_config could not find peer entry");
+        return;
+    }
+
+    /* Reset the peer codec configuration */
+    bta_av_co_audio_peer_reset_config(p_peer);
+}
+
+/*******************************************************************************
+ **
+ ** Function         bta_av_co_init
+ **
+ ** Description      Initialization
+ **
+ ** Returns          Nothing
+ **
+ *******************************************************************************/
+void bta_av_co_init(void)
+{
+    FUNC_TRACE();
+
+    /* Reset the control block */
+    memset(&bta_av_co_cb, 0, sizeof(bta_av_co_cb));
+
+    bta_av_co_cb.codec_cfg_setconfig.id = BTIF_AV_CODEC_NONE;
+
+#if defined(BTA_AV_CO_CP_SCMS_T) && (BTA_AV_CO_CP_SCMS_T == TRUE)
+    bta_av_co_cp_set_flag(BTA_AV_CP_SCMS_COPY_NEVER);
+#else
+    bta_av_co_cp_set_flag(BTA_AV_CP_SCMS_COPY_FREE);
+#endif
+
+    /* Reset the current config */
+    bta_av_co_audio_codec_reset();
+}
+
+
+/*******************************************************************************
+ **
+ ** Function         bta_av_co_peer_cp_supported
+ **
+ ** Description      Checks if the peer supports CP
+ **
+ ** Returns          TRUE if the peer supports CP
+ **
+ *******************************************************************************/
+BOOLEAN bta_av_co_peer_cp_supported(tBTA_AV_HNDL hndl)
+{
+    tBTA_AV_CO_PEER *p_peer;
+    tBTA_AV_CO_SINK *p_sink;
+    UINT8 index;
+
+    FUNC_TRACE();
+
+    /* Find the peer info */
+    p_peer = bta_av_co_get_peer(hndl);
+    if (p_peer == NULL)
+    {
+        APPL_TRACE_ERROR("bta_av_co_peer_cp_supported could not find peer entry");
+        return FALSE;
+    }
+
+    for (index = 0; index < p_peer->num_sup_snks; index++)
+    {
+        p_sink = &p_peer->snks[index];
+        if (p_sink->codec_type == A2D_MEDIA_CT_SBC)
+        {
+            return bta_av_co_audio_sink_has_scmst(p_sink);
+        }
+    }
+    APPL_TRACE_ERROR("bta_av_co_peer_cp_supported did not find SBC sink");
+    return FALSE;
+}
+
+
+/*******************************************************************************
+ **
+ ** Function         bta_av_co_get_remote_bitpool_pref
+ **
+ ** Description      Check if remote side did a setconfig within the limits
+ **                  of our exported bitpool range. If set we will set the
+ **                  remote preference.
+ **
+ ** Returns          TRUE if config set, FALSE otherwize
+ **
+ *******************************************************************************/
+
+BOOLEAN bta_av_co_get_remote_bitpool_pref(UINT8 *min, UINT8 *max)
+{
+    /* check if remote peer did a set config */
+    if (bta_av_co_cb.codec_cfg_setconfig.id == BTIF_AV_CODEC_NONE)
+        return FALSE;
+
+    *min = bta_av_co_cb.codec_cfg_setconfig.info[BTA_AV_CO_SBC_MIN_BITPOOL_OFF];
+    *max = bta_av_co_cb.codec_cfg_setconfig.info[BTA_AV_CO_SBC_MAX_BITPOOL_OFF];
+
+    return TRUE;
+}
diff --git a/rtkbt/code/bt/btif/co/bta_dm_co.c b/rtkbt/code/bt/btif/co/bta_dm_co.c
new file mode 100755
index 0000000..343010f
--- /dev/null
+++ b/rtkbt/code/bt/btif/co/bta_dm_co.c
@@ -0,0 +1,438 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "bta_api.h"
+#include "bta_sys.h"
+#include "bta_dm_co.h"
+#include "bta_dm_ci.h"
+#include "bt_utils.h"
+#include "btif_dm.h"
+#if (defined BLE_INCLUDED && BLE_INCLUDED == TRUE)
+#include "bte_appl.h"
+
+tBTE_APPL_CFG bte_appl_cfg =
+{
+#if SMP_INCLUDED == TRUE
+    BTA_LE_AUTH_REQ_SC_MITM_BOND, // Authentication requirements
+#else
+    BTM_AUTH_SPGB_YES,            // Authentication requirements
+#endif
+    BTM_LOCAL_IO_CAPS_BLE,
+    BTM_BLE_INITIATOR_KEY_SIZE,
+    BTM_BLE_RESPONDER_KEY_SIZE,
+    BTM_BLE_MAX_KEY_SIZE
+};
+#endif
+
+/*******************************************************************************
+**
+** Function         bta_dm_co_get_compress_memory
+**
+** Description      This callout function is executed by DM to get memory for compression
+
+** Parameters       id  -  BTA SYS ID
+**                  memory_p - memory return by callout
+**                  memory_size - memory size
+**
+** Returns          TRUE for success, FALSE for fail.
+**
+*******************************************************************************/
+BOOLEAN bta_dm_co_get_compress_memory(tBTA_SYS_ID id, UINT8 **memory_p, UINT32 *memory_size)
+{
+    UNUSED(id);
+    UNUSED(memory_p);
+    UNUSED(memory_size);
+    return TRUE;
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_co_io_req
+**
+** Description      This callout function is executed by DM to get IO capabilities
+**                  of the local device for the Simple Pairing process
+**
+** Parameters       bd_addr  - The peer device
+**                  *p_io_cap - The local Input/Output capabilities
+**                  *p_oob_data - TRUE, if OOB data is available for the peer device.
+**                  *p_auth_req - TRUE, if MITM protection is required.
+**
+** Returns          void.
+**
+*******************************************************************************/
+void bta_dm_co_io_req(BD_ADDR bd_addr, tBTA_IO_CAP *p_io_cap, tBTA_OOB_DATA *p_oob_data,
+                      tBTA_AUTH_REQ *p_auth_req, BOOLEAN is_orig)
+{
+    UNUSED(bd_addr);
+    btif_dm_set_oob_for_io_req(p_oob_data);
+    btif_dm_proc_io_req(bd_addr, p_io_cap, p_oob_data, p_auth_req, is_orig);
+    BTIF_TRACE_DEBUG("bta_dm_co_io_req *p_oob_data = %d", *p_oob_data);
+    BTIF_TRACE_DEBUG("bta_dm_co_io_req *p_io_cap = %d", *p_io_cap);
+    BTIF_TRACE_DEBUG("bta_dm_co_io_req *p_auth_req = %d", *p_auth_req);
+    BTIF_TRACE_DEBUG("bta_dm_co_io_req is_orig = %d", is_orig);
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_co_io_rsp
+**
+** Description      This callout function is executed by DM to report IO capabilities
+**                  of the peer device for the Simple Pairing process
+**
+** Parameters       bd_addr  - The peer device
+**                  io_cap - The remote Input/Output capabilities
+**                  oob_data - TRUE, if OOB data is available for the peer device.
+**                  auth_req - TRUE, if MITM protection is required.
+**
+** Returns          void.
+**
+*******************************************************************************/
+void bta_dm_co_io_rsp(BD_ADDR bd_addr, tBTA_IO_CAP io_cap,
+                      tBTA_OOB_DATA oob_data, tBTA_AUTH_REQ auth_req)
+{
+    btif_dm_proc_io_rsp(bd_addr, io_cap, oob_data, auth_req);
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_co_lk_upgrade
+**
+** Description      This callout function is executed by DM to check if the
+**                  platform wants allow link key upgrade
+**
+** Parameters       bd_addr  - The peer device
+**                  *p_upgrade - TRUE, if link key upgrade is desired.
+**
+** Returns          void.
+**
+*******************************************************************************/
+void  bta_dm_co_lk_upgrade(BD_ADDR bd_addr, BOOLEAN *p_upgrade )
+{
+    UNUSED(bd_addr);
+    UNUSED(p_upgrade);
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_co_loc_oob
+**
+** Description      This callout function is executed by DM to report the OOB
+**                  data of the local device for the Simple Pairing process
+**
+** Parameters       valid - TRUE, if the local OOB data is retrieved from LM
+**                  c     - Simple Pairing Hash C
+**                  r     - Simple Pairing Randomnizer R
+**
+** Returns          void.
+**
+*******************************************************************************/
+void bta_dm_co_loc_oob(BOOLEAN valid, BT_OCTET16 c, BT_OCTET16 r)
+{
+    BTIF_TRACE_DEBUG("bta_dm_co_loc_oob, valid = %d", valid);
+#ifdef BTIF_DM_OOB_TEST
+    btif_dm_proc_loc_oob(valid, c, r);
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_co_rmt_oob
+**
+** Description      This callout function is executed by DM to request the OOB
+**                  data for the remote device for the Simple Pairing process
+**                  Need to call bta_dm_ci_rmt_oob() in response
+**
+** Parameters       bd_addr  - The peer device
+**
+** Returns          void.
+**
+*******************************************************************************/
+void bta_dm_co_rmt_oob(BD_ADDR bd_addr)
+{
+    BT_OCTET16 p_c;
+    BT_OCTET16 p_r;
+    BOOLEAN result = FALSE;
+
+#ifdef BTIF_DM_OOB_TEST
+    result = btif_dm_proc_rmt_oob(bd_addr, p_c, p_r);
+#endif
+
+    BTIF_TRACE_DEBUG("bta_dm_co_rmt_oob: result=%d",result);
+    bta_dm_ci_rmt_oob(result, bd_addr, p_c, p_r);
+}
+
+
+// REMOVE FOR BLUEDROID ?
+
+#if (BTM_SCO_HCI_INCLUDED == TRUE ) && (BTM_SCO_INCLUDED == TRUE)
+
+/*******************************************************************************
+**
+** Function         btui_sco_codec_callback
+**
+** Description      Callback for btui codec.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btui_sco_codec_callback(UINT16 event, UINT16 sco_handle)
+{
+    bta_dm_sco_ci_data_ready(event, sco_handle);
+}
+/*******************************************************************************
+**
+** Function         bta_dm_sco_co_init
+**
+** Description      This function can be used by the phone to initialize audio
+**                  codec or for other initialization purposes before SCO connection
+**                  is opened.
+**
+**
+** Returns          tBTA_DM_SCO_ROUTE_TYPE: SCO routing configuration type.
+**
+*******************************************************************************/
+tBTA_DM_SCO_ROUTE_TYPE bta_dm_sco_co_init(UINT32 rx_bw, UINT32 tx_bw,
+                                          tBTA_CODEC_INFO * p_codec_type, UINT8 app_id)
+{
+    tBTM_SCO_ROUTE_TYPE route = BTA_DM_SCO_ROUTE_PCM;
+
+    BTIF_TRACE_DEBUG("bta_dm_sco_co_init");
+
+    /* set up SCO routing configuration if SCO over HCI app ID is used and run time
+        configuration is set to SCO over HCI */
+    /* HS invoke this call-out */
+    if (
+#if (BTA_HS_INCLUDED == TRUE ) && (BTA_HS_INCLUDED == TRUE)
+       (app_id == BTUI_DM_SCO_4_HS_APP_ID && btui_cfg.hs_sco_over_hci) ||
+#endif
+       /* AG invoke this call-out */
+       (app_id != BTUI_DM_SCO_4_HS_APP_ID && btui_cfg.ag_sco_over_hci ))
+    {
+        route = btui_cb.sco_hci = BTA_DM_SCO_ROUTE_HCI;
+    }
+    /* no codec is is used for the SCO data */
+    if (p_codec_type->codec_type == BTA_SCO_CODEC_PCM && route == BTA_DM_SCO_ROUTE_HCI)
+    {
+        /* initialize SCO codec */
+        if (!btui_sco_codec_init(rx_bw, tx_bw))
+        {
+            BTIF_TRACE_ERROR("codec initialization exception!");
+        }
+    }
+
+    return route;
+}
+
+
+
+/*******************************************************************************
+**
+** Function         bta_dm_sco_co_open
+**
+** Description      This function is executed when a SCO connection is open.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_dm_sco_co_open(UINT16 handle, UINT8 pkt_size, UINT16 event)
+{
+    tBTUI_SCO_CODEC_CFG cfg;
+
+    if (btui_cb.sco_hci)
+    {
+        BTIF_TRACE_DEBUG("bta_dm_sco_co_open handle:%d pkt_size:%d", handle, pkt_size);
+        cfg.p_cback = btui_sco_codec_callback;
+        cfg.pkt_size = pkt_size;
+        cfg.cb_event = event;
+        /* open and start the codec */
+        btui_sco_codec_open(&cfg);
+        btui_sco_codec_start(handle);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_sco_co_close
+**
+** Description      This function is called when a SCO connection is closed
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_dm_sco_co_close(void)
+{
+    if (btui_cb.sco_hci)
+    {
+        BTIF_TRACE_DEBUG("bta_dm_sco_co_close close codec");
+        /* close sco codec */
+        btui_sco_codec_close();
+
+        btui_cb.sco_hci = FALSE;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_sco_co_in_data
+**
+** Description      This function is called to send incoming SCO data to application.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_dm_sco_co_in_data(BT_HDR  *p_buf)
+{
+    if (btui_cfg.sco_use_mic)
+        btui_sco_codec_inqdata(p_buf);
+    else
+        osi_free(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_sco_co_out_data
+**
+** Description      This function is called to send SCO data over HCI.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_dm_sco_co_out_data(BT_HDR  **p_buf)
+{
+    btui_sco_codec_readbuf(p_buf);
+}
+
+#endif /* #if (BTM_SCO_HCI_INCLUDED == TRUE ) && (BTM_SCO_INCLUDED == TRUE)*/
+
+
+#if (defined BLE_INCLUDED && BLE_INCLUDED == TRUE)
+/*******************************************************************************
+**
+** Function         bta_dm_co_le_io_key_req
+**
+** Description      This callout function is executed by DM to get BLE key information
+**                  before SMP pairing gets going.
+**
+** Parameters       bd_addr  - The peer device
+**                  *p_max_key_size - max key size local device supported.
+**                  *p_init_key - initiator keys.
+**                  *p_resp_key - responder keys.
+**
+** Returns          void.
+**
+*******************************************************************************/
+void bta_dm_co_le_io_key_req(BD_ADDR bd_addr, UINT8 *p_max_key_size,
+                             tBTA_LE_KEY_TYPE *p_init_key,
+                             tBTA_LE_KEY_TYPE  *p_resp_key )
+{
+    UNUSED(bd_addr);
+    BTIF_TRACE_ERROR("##################################");
+    BTIF_TRACE_ERROR("bta_dm_co_le_io_key_req: only setting max size to 16");
+    BTIF_TRACE_ERROR("##################################");
+    *p_max_key_size = 16;
+    *p_init_key = *p_resp_key =
+                  (BTA_LE_KEY_PENC|BTA_LE_KEY_PID|BTA_LE_KEY_PCSRK|BTA_LE_KEY_LENC|BTA_LE_KEY_LID|BTA_LE_KEY_LCSRK);
+}
+
+
+/*******************************************************************************
+**
+** Function         bta_dm_co_ble_local_key_reload
+**
+** Description      This callout function is to load the local BLE keys if available
+**                  on the device.
+**
+** Parameters       none
+**
+** Returns          void.
+**
+*******************************************************************************/
+void bta_dm_co_ble_load_local_keys(tBTA_DM_BLE_LOCAL_KEY_MASK *p_key_mask, BT_OCTET16 er,
+                                   tBTA_BLE_LOCAL_ID_KEYS *p_id_keys)
+{
+    BTIF_TRACE_DEBUG("##################################");
+    BTIF_TRACE_DEBUG("bta_dm_co_ble_load_local_keys:  Load local keys if any are persisted");
+    BTIF_TRACE_DEBUG("##################################");
+    btif_dm_get_ble_local_keys( p_key_mask, er, p_id_keys);
+}
+
+/*******************************************************************************
+**
+** Function         bta_dm_co_ble_io_req
+**
+** Description      This callout function is executed by DM to get BLE IO capabilities
+**                  before SMP pairing gets going.
+**
+** Parameters       bd_addr  - The peer device
+**                  *p_io_cap - The local Input/Output capabilities
+**                  *p_oob_data - TRUE, if OOB data is available for the peer device.
+**                  *p_auth_req -  Auth request setting (Bonding and MITM required or not)
+**                  *p_max_key_size - max key size local device supported.
+**                  *p_init_key - initiator keys.
+**                  *p_resp_key - responder keys.
+**
+** Returns          void.
+**
+*******************************************************************************/
+void bta_dm_co_ble_io_req(BD_ADDR bd_addr,  tBTA_IO_CAP *p_io_cap,
+                          tBTA_OOB_DATA *p_oob_data,
+                          tBTA_LE_AUTH_REQ *p_auth_req,
+                          UINT8 *p_max_key_size,
+                          tBTA_LE_KEY_TYPE *p_init_key,
+                          tBTA_LE_KEY_TYPE  *p_resp_key )
+{
+    UNUSED(bd_addr);
+    /* Retrieve the properties from file system if possible */
+    tBTE_APPL_CFG nv_config;
+    if(btif_dm_get_smp_config(&nv_config))
+        bte_appl_cfg = nv_config;
+
+    /* *p_auth_req by default is FALSE for devices with NoInputNoOutput; TRUE for other devices. */
+
+    if (bte_appl_cfg.ble_auth_req)
+        *p_auth_req = bte_appl_cfg.ble_auth_req | (bte_appl_cfg.ble_auth_req & 0x04) | ((*p_auth_req) & 0x04);
+
+    /* if OOB is not supported, this call-out function does not need to do anything
+     * otherwise, look for the OOB data associated with the address and set *p_oob_data accordingly.
+     * If the answer can not be obtained right away,
+     * set *p_oob_data to BTA_OOB_UNKNOWN and call bta_dm_ci_io_req() when the answer is available.
+     */
+
+    btif_dm_set_oob_for_le_io_req(bd_addr, p_oob_data, p_auth_req);
+
+    if (bte_appl_cfg.ble_io_cap <=4)
+        *p_io_cap = bte_appl_cfg.ble_io_cap;
+
+    if (bte_appl_cfg.ble_init_key <= BTM_BLE_INITIATOR_KEY_SIZE)
+        *p_init_key = bte_appl_cfg.ble_init_key;
+
+    if (bte_appl_cfg.ble_resp_key <= BTM_BLE_RESPONDER_KEY_SIZE)
+        *p_resp_key = bte_appl_cfg.ble_resp_key;
+
+    if (bte_appl_cfg.ble_max_key_size > 7 && bte_appl_cfg.ble_max_key_size <= 16)
+        *p_max_key_size = bte_appl_cfg.ble_max_key_size;
+}
+
+
+#endif
+
diff --git a/rtkbt/code/bt/btif/co/bta_gatts_co.c b/rtkbt/code/bt/btif/co/bta_gatts_co.c
new file mode 100755
index 0000000..5671aad
--- /dev/null
+++ b/rtkbt/code/bt/btif/co/bta_gatts_co.c
@@ -0,0 +1,168 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2013 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#include "bta_api.h"
+
+#if( defined BLE_INCLUDED ) && (BLE_INCLUDED == TRUE)
+#if( defined BTA_GATT_INCLUDED ) && (BTA_GATT_INCLUDED == TRUE)
+
+#include <stdlib.h>
+#include <string.h>
+#include "bt_common.h"
+#include "bta_gatts_co.h"
+#include "btif_util.h"
+
+/*****************************************************************************
+**  Local type definitions
+*****************************************************************************/
+
+#define BTIF_GATTS_MAX_SRV_CHG_CLT_SIZE 50
+
+typedef struct
+{
+    BOOLEAN             enable;
+    UINT8               num_clients;
+    tBTA_GATTS_SRV_CHG  srv_chg[BTIF_GATTS_MAX_SRV_CHG_CLT_SIZE];
+} __attribute__((packed)) btif_gatts_srv_chg_cb_t;
+
+/*****************************************************************************
+**  Static variables
+*****************************************************************************/
+
+static btif_gatts_srv_chg_cb_t btif_gatts_srv_chg_cb;
+
+/*****************************************************************************
+**  Static functions
+*****************************************************************************/
+
+static void btif_gatts_check_init(void)
+{
+    btif_gatts_srv_chg_cb_t *p_cb= &btif_gatts_srv_chg_cb;
+
+    if (!p_cb->enable)
+    {
+       memset(p_cb, 0, sizeof(btif_gatts_srv_chg_cb_t));
+       p_cb->enable = TRUE;
+    }
+}
+
+/*****************************************************************************
+**  Externally called functions
+*****************************************************************************/
+
+void btif_gatts_add_bonded_dev_from_nv(BD_ADDR bda)
+{
+    btif_gatts_srv_chg_cb_t *p_cb= &btif_gatts_srv_chg_cb;
+    BOOLEAN                 found = FALSE;
+    UINT8                   i;
+
+    btif_gatts_check_init();
+
+    for (i=0; i != p_cb->num_clients; ++i)
+    {
+        if (!memcmp(p_cb->srv_chg[i].bda,  bda, sizeof(BD_ADDR)))
+        {
+            found = TRUE;
+            break;
+        }
+    }
+
+    if (!found)
+    {
+        if (p_cb->num_clients < BTIF_GATTS_MAX_SRV_CHG_CLT_SIZE)
+        {
+            bdcpy(p_cb->srv_chg[p_cb->num_clients].bda, bda);
+            p_cb->srv_chg[p_cb->num_clients].srv_changed = FALSE;
+            p_cb->num_clients++;
+        }
+    }
+}
+
+/*****************************************************************************
+**  Call-out functions
+*****************************************************************************/
+
+/*******************************************************************************
+**
+** Function         bta_gatts_co_update_handle_range
+**
+** Description      This callout function is executed by GATTS when a GATT server
+**                  handle range ios to be added or removed.
+**
+** Parameter        is_add: true is to add a handle range; otherwise is to delete.
+**                  p_hndl_range: handle range.
+**
+** Returns          void.
+**
+*******************************************************************************/
+void bta_gatts_co_update_handle_range(BOOLEAN is_add, tBTA_GATTS_HNDL_RANGE *p_hndl_range)
+{
+    UNUSED(is_add);
+    UNUSED(p_hndl_range);
+}
+
+/*******************************************************************************
+**
+** Function         bta_gatts_co_srv_chg
+**
+** Description      This call-out is to read/write/remove service change related
+**                  informaiton. The request consists of the cmd and p_req and the
+**                  response is returned in p_rsp
+**
+** Parameter        cmd - request command
+**                  p_req - request paramters
+**                  p_rsp - response data for the request
+**
+** Returns          TRUE - if the request is processed successfully and
+**                         the response is returned in p_rsp.
+**                  FASLE - if the request can not be processed
+**
+*******************************************************************************/
+BOOLEAN bta_gatts_co_srv_chg(tBTA_GATTS_SRV_CHG_CMD cmd,
+                             tBTA_GATTS_SRV_CHG_REQ *p_req,
+                             tBTA_GATTS_SRV_CHG_RSP *p_rsp)
+{
+    UNUSED(cmd);
+    UNUSED(p_req);
+    UNUSED(p_rsp);
+
+    return FALSE;
+}
+
+/*******************************************************************************
+**
+** Function         bta_gatts_co_load_handle_range
+**
+** Description      This callout function is executed by GATTS when a GATT server
+**                  handle range is requested to be loaded from NV.
+**
+** Parameter
+**
+** Returns          void.
+**
+*******************************************************************************/
+BOOLEAN bta_gatts_co_load_handle_range(UINT8 index,
+                                       tBTA_GATTS_HNDL_RANGE *p_handle_range)
+{
+    UNUSED(index);
+    UNUSED(p_handle_range);
+
+    return FALSE;
+}
+#endif
+#endif
diff --git a/rtkbt/code/bt/btif/co/bta_hh_co.c b/rtkbt/code/bt/btif/co/bta_hh_co.c
new file mode 100755
index 0000000..14c3a38
--- /dev/null
+++ b/rtkbt/code/bt/btif/co/bta_hh_co.c
@@ -0,0 +1,646 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#include <assert.h>
+#include <ctype.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <linux/uhid.h>
+#include <pthread.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdint.h>
+#include <sys/poll.h>
+#include <unistd.h>
+
+#include "btcore/include/bdaddr.h"
+#include "osi/include/osi.h"
+#include "bta_api.h"
+#include "bta_hh_api.h"
+#include "bta_hh_co.h"
+#include "btif_hh.h"
+#include "btif_util.h"
+#ifdef BLUETOOTH_RTK_API
+#include "rtkbt_api.h"
+#endif
+
+const char *dev_path = "/dev/uhid";
+
+#if (BLE_INCLUDED == TRUE && BTA_HH_LE_INCLUDED == TRUE)
+#include "btif_config.h"
+#define BTA_HH_NV_LOAD_MAX       16
+static tBTA_HH_RPT_CACHE_ENTRY sReportCache[BTA_HH_NV_LOAD_MAX];
+#endif
+
+void uhid_set_non_blocking(int fd)
+{
+    int opts = fcntl(fd, F_GETFL);
+    if (opts < 0)
+        APPL_TRACE_ERROR("%s() Getting flags failed (%s)", __func__, strerror(errno));
+
+    opts |= O_NONBLOCK;
+
+    if (fcntl(fd, F_SETFL, opts) < 0)
+        APPL_TRACE_EVENT("%s() Setting non-blocking flag failed (%s)", __func__, strerror(errno));
+}
+
+/*Internal function to perform UHID write and error checking*/
+static int uhid_write(int fd, const struct uhid_event *ev)
+{
+    ssize_t ret;
+    OSI_NO_INTR(ret = write(fd, ev, sizeof(*ev)));
+
+    if (ret < 0){
+        int rtn = -errno;
+        APPL_TRACE_ERROR("%s: Cannot write to uhid:%s",
+                         __FUNCTION__, strerror(errno));
+        return rtn;
+    } else if (ret != (ssize_t)sizeof(*ev)) {
+        APPL_TRACE_ERROR("%s: Wrong size written to uhid: %zd != %zu",
+                         __FUNCTION__, ret, sizeof(*ev));
+        return -EFAULT;
+    }
+
+    return 0;
+}
+
+/* Internal function to parse the events received from UHID driver*/
+static int uhid_read_event(btif_hh_device_t *p_dev)
+{
+    assert(p_dev);
+
+    struct uhid_event ev;
+    memset(&ev, 0, sizeof(ev));
+
+    ssize_t ret;
+    OSI_NO_INTR(ret = read(p_dev->fd, &ev, sizeof(ev)));
+
+    if (ret == 0) {
+        APPL_TRACE_ERROR("%s: Read HUP on uhid-cdev %s", __FUNCTION__,
+                                                 strerror(errno));
+        return -EFAULT;
+    } else if (ret < 0) {
+        APPL_TRACE_ERROR("%s: Cannot read uhid-cdev: %s", __FUNCTION__,
+                                                strerror(errno));
+        return -errno;
+    } else if ((ev.type == UHID_OUTPUT) || (ev.type==UHID_OUTPUT_EV)) {
+        // Only these two types havae payload,
+        // ensure we read full event descriptor
+        if (ret < (ssize_t)sizeof(ev)) {
+            APPL_TRACE_ERROR("%s: Invalid size read from uhid-dev: %ld != %lu",
+                         __FUNCTION__, ret, sizeof(ev.type));
+            return -EFAULT;
+        }
+    }
+
+    switch (ev.type) {
+    case UHID_START:
+        APPL_TRACE_DEBUG("UHID_START from uhid-dev\n");
+        p_dev->ready_for_data = TRUE;
+        break;
+    case UHID_STOP:
+        APPL_TRACE_DEBUG("UHID_STOP from uhid-dev\n");
+        p_dev->ready_for_data = FALSE;
+        break;
+    case UHID_OPEN:
+        APPL_TRACE_DEBUG("UHID_OPEN from uhid-dev\n");
+        p_dev->ready_for_data = TRUE;
+        break;
+    case UHID_CLOSE:
+        APPL_TRACE_DEBUG("UHID_CLOSE from uhid-dev\n");
+        p_dev->ready_for_data = FALSE;
+        break;
+    case UHID_OUTPUT:
+        if (ret < (ssize_t)(sizeof(ev.type) + sizeof(ev.u.output))) {
+            APPL_TRACE_ERROR("%s: Invalid size read from uhid-dev: %zd < %zu",
+                             __FUNCTION__, ret,
+                             sizeof(ev.type) + sizeof(ev.u.output));
+            return -EFAULT;
+        }
+
+        APPL_TRACE_DEBUG("UHID_OUTPUT: Report type = %d, report_size = %d"
+                            ,ev.u.output.rtype, ev.u.output.size);
+        //Send SET_REPORT with feature report if the report type in output event is FEATURE
+        if(ev.u.output.rtype == UHID_FEATURE_REPORT)
+            btif_hh_setreport(p_dev, BTHH_FEATURE_REPORT,
+                              ev.u.output.size, ev.u.output.data);
+        else if(ev.u.output.rtype == UHID_OUTPUT_REPORT)
+            btif_hh_setreport(p_dev, BTHH_OUTPUT_REPORT,
+                              ev.u.output.size, ev.u.output.data);
+        else
+            btif_hh_setreport(p_dev, BTHH_INPUT_REPORT,
+                              ev.u.output.size, ev.u.output.data);
+           break;
+    case UHID_OUTPUT_EV:
+        APPL_TRACE_DEBUG("UHID_OUTPUT_EV from uhid-dev\n");
+        break;
+    case UHID_FEATURE:
+        APPL_TRACE_DEBUG("UHID_FEATURE from uhid-dev\n");
+        break;
+    case UHID_FEATURE_ANSWER:
+        APPL_TRACE_DEBUG("UHID_FEATURE_ANSWER from uhid-dev\n");
+        break;
+#ifdef BLUETOOTH_RTK
+    case UHID_SET_REPORT:
+        if (ret < (ssize_t)(sizeof(ev.type) + sizeof(ev.u.set_report))) {
+            APPL_TRACE_ERROR("%s: Invalid size read from uhid-dev: %zd < %zu",
+                             __FUNCTION__, ret,
+                             sizeof(ev.type) + sizeof(ev.u.output));
+            return -EFAULT;
+        }
+
+        APPL_TRACE_DEBUG("UHID_SET_REPORT: Report type = %d, report_size = %d"
+                            ,ev.u.set_report.rtype, ev.u.set_report.size);
+        //Send SET_REPORT with feature report if the report type in output event is FEATURE
+        if(ev.u.set_report.rtype == UHID_FEATURE_REPORT)
+            btif_hh_setreport(p_dev, BTHH_FEATURE_REPORT,
+                              ev.u.set_report.size, ev.u.set_report.data);
+        else if(ev.u.set_report.rtype == UHID_OUTPUT_REPORT)
+            btif_hh_setreport(p_dev, BTHH_OUTPUT_REPORT,
+                              ev.u.set_report.size, ev.u.set_report.data);
+        else
+            btif_hh_setreport(p_dev, BTHH_INPUT_REPORT,
+                              ev.u.set_report.size, ev.u.set_report.data);
+        break;
+#endif
+    default:
+        APPL_TRACE_DEBUG("Invalid event from uhid-dev: %u\n", ev.type);
+    }
+
+    return 0;
+}
+
+/*******************************************************************************
+**
+** Function create_thread
+**
+** Description creat a select loop
+**
+** Returns pthread_t
+**
+*******************************************************************************/
+static inline pthread_t create_thread(void *(*start_routine)(void *), void * arg){
+    APPL_TRACE_DEBUG("create_thread: entered");
+    pthread_attr_t thread_attr;
+
+    pthread_attr_init(&thread_attr);
+    pthread_attr_setdetachstate(&thread_attr, PTHREAD_CREATE_JOINABLE);
+    pthread_t thread_id = -1;
+    if ( pthread_create(&thread_id, &thread_attr, start_routine, arg)!=0 )
+    {
+        APPL_TRACE_ERROR("pthread_create : %s", strerror(errno));
+        return -1;
+    }
+    APPL_TRACE_DEBUG("create_thread: thread created successfully");
+    return thread_id;
+}
+
+/*******************************************************************************
+**
+** Function btif_hh_poll_event_thread
+**
+** Description the polling thread which polls for event from UHID driver
+**
+** Returns void
+**
+*******************************************************************************/
+static void *btif_hh_poll_event_thread(void *arg)
+{
+    btif_hh_device_t *p_dev = arg;
+    APPL_TRACE_DEBUG("%s: Thread created fd = %d", __func__, p_dev->fd);
+    struct pollfd pfds[1];
+
+    pfds[0].fd = p_dev->fd;
+    pfds[0].events = POLLIN;
+
+    // Set the uhid fd as non-blocking to ensure we never block the BTU thread
+    uhid_set_non_blocking(p_dev->fd);
+
+    while(p_dev->hh_keep_polling){
+        int ret;
+        OSI_NO_INTR(ret = poll(pfds, 1, 50));
+        if (ret < 0) {
+            APPL_TRACE_ERROR("%s: Cannot poll for fds: %s\n", __func__, strerror(errno));
+            break;
+        }
+        if (pfds[0].revents & POLLIN) {
+            APPL_TRACE_DEBUG("%s: POLLIN", __func__);
+            ret = uhid_read_event(p_dev);
+            if (ret != 0)
+                break;
+        }
+    }
+
+    p_dev->hh_poll_thread_id = -1;
+    return 0;
+}
+
+static inline void btif_hh_close_poll_thread(btif_hh_device_t *p_dev)
+{
+    APPL_TRACE_DEBUG("%s", __FUNCTION__);
+    p_dev->hh_keep_polling = 0;
+    if(p_dev->hh_poll_thread_id > 0)
+        pthread_join(p_dev->hh_poll_thread_id,NULL);
+
+    return;
+}
+
+void bta_hh_co_destroy(int fd)
+{
+    struct uhid_event ev;
+    memset(&ev, 0, sizeof(ev));
+    ev.type = UHID_DESTROY;
+    uhid_write(fd, &ev);
+    APPL_TRACE_DEBUG("%s: Closing fd=%d", __func__, fd);
+    close(fd);
+}
+
+int bta_hh_co_write(int fd, UINT8* rpt, UINT16 len)
+{
+    APPL_TRACE_DEBUG("%s: UHID write %d", __func__, len);
+
+    struct uhid_event ev;
+    memset(&ev, 0, sizeof(ev));
+    ev.type = UHID_INPUT;
+    ev.u.input.size = len;
+    if(len > sizeof(ev.u.input.data)){
+        APPL_TRACE_WARNING("%s: Report size greater than allowed size",
+                           __FUNCTION__);
+        return -1;
+    }
+    memcpy(ev.u.input.data, rpt, len);
+
+    return uhid_write(fd, &ev);
+
+}
+
+
+/*******************************************************************************
+**
+** Function      bta_hh_co_open
+**
+** Description   When connection is opened, this call-out function is executed
+**               by HH to do platform specific initialization.
+**
+** Returns       void.
+*******************************************************************************/
+void bta_hh_co_open(UINT8 dev_handle, UINT8 sub_class, tBTA_HH_ATTR_MASK attr_mask,
+                    UINT8 app_id)
+{
+    UINT32 i;
+    btif_hh_device_t *p_dev = NULL;
+
+    if (dev_handle == BTA_HH_INVALID_HANDLE) {
+        APPL_TRACE_WARNING("%s: Oops, dev_handle (%d) is invalid...",
+                           __FUNCTION__, dev_handle);
+        return;
+    }
+
+    for (i = 0; i < BTIF_HH_MAX_HID; i++) {
+        p_dev = &btif_hh_cb.devices[i];
+        if (p_dev->dev_status != BTHH_CONN_STATE_UNKNOWN &&
+            p_dev->dev_handle == dev_handle) {
+            // We found a device with the same handle. Must be a device reconnected.
+            APPL_TRACE_WARNING("%s: Found an existing device with the same handle "
+                                                                "dev_status = %d",__FUNCTION__,
+                                                                p_dev->dev_status);
+            APPL_TRACE_WARNING("%s:     bd_addr = [%02X:%02X:%02X:%02X:%02X:]", __FUNCTION__,
+                 p_dev->bd_addr.address[0], p_dev->bd_addr.address[1], p_dev->bd_addr.address[2],
+                 p_dev->bd_addr.address[3], p_dev->bd_addr.address[4]);
+                 APPL_TRACE_WARNING("%s:     attr_mask = 0x%04x, sub_class = 0x%02x, app_id = %d",
+                                  __FUNCTION__, p_dev->attr_mask, p_dev->sub_class, p_dev->app_id);
+
+            if(p_dev->fd<0) {
+                p_dev->fd = open(dev_path, O_RDWR | O_CLOEXEC);
+                if (p_dev->fd < 0){
+                    APPL_TRACE_ERROR("%s: Error: failed to open uhid, err:%s",
+                                                                    __FUNCTION__,strerror(errno));
+                    return;
+                }else
+                    APPL_TRACE_DEBUG("%s: uhid fd = %d", __FUNCTION__, p_dev->fd);
+            }
+
+            p_dev->hh_keep_polling = 1;
+            p_dev->hh_poll_thread_id = create_thread(btif_hh_poll_event_thread, p_dev);
+            break;
+        }
+        p_dev = NULL;
+    }
+
+    if (p_dev == NULL) {
+        // Did not find a device reconnection case. Find an empty slot now.
+        for (i = 0; i < BTIF_HH_MAX_HID; i++) {
+            if (btif_hh_cb.devices[i].dev_status == BTHH_CONN_STATE_UNKNOWN) {
+                p_dev = &btif_hh_cb.devices[i];
+                p_dev->dev_handle = dev_handle;
+                p_dev->attr_mask  = attr_mask;
+                p_dev->sub_class  = sub_class;
+                p_dev->app_id     = app_id;
+                p_dev->local_vup  = FALSE;
+
+                btif_hh_cb.device_num++;
+                // This is a new device,open the uhid driver now.
+                p_dev->fd = open(dev_path, O_RDWR | O_CLOEXEC);
+                if (p_dev->fd < 0){
+                    APPL_TRACE_ERROR("%s: Error: failed to open uhid, err:%s",
+                                                                    __FUNCTION__,strerror(errno));
+                    return;
+                }else{
+                    APPL_TRACE_DEBUG("%s: uhid fd = %d", __FUNCTION__, p_dev->fd);
+                    p_dev->hh_keep_polling = 1;
+                    p_dev->hh_poll_thread_id = create_thread(btif_hh_poll_event_thread, p_dev);
+                }
+
+
+                break;
+            }
+        }
+    }
+
+    if (p_dev == NULL) {
+        APPL_TRACE_ERROR("%s: Error: too many HID devices are connected", __FUNCTION__);
+        return;
+    }
+
+    p_dev->dev_status = BTHH_CONN_STATE_CONNECTED;
+    APPL_TRACE_DEBUG("%s: Return device status %d", __FUNCTION__, p_dev->dev_status);
+}
+
+
+/*******************************************************************************
+**
+** Function      bta_hh_co_close
+**
+** Description   When connection is closed, this call-out function is executed
+**               by HH to do platform specific finalization.
+**
+** Parameters    dev_handle  - device handle
+**                  app_id      - application id
+**
+** Returns          void.
+*******************************************************************************/
+void bta_hh_co_close(UINT8 dev_handle, UINT8 app_id)
+{
+    UINT32 i;
+    btif_hh_device_t *p_dev = NULL;
+
+    APPL_TRACE_WARNING("%s: dev_handle = %d, app_id = %d", __FUNCTION__, dev_handle, app_id);
+    if (dev_handle == BTA_HH_INVALID_HANDLE) {
+        APPL_TRACE_WARNING("%s: Oops, dev_handle (%d) is invalid...", __FUNCTION__, dev_handle);
+        return;
+    }
+
+    for (i = 0; i < BTIF_HH_MAX_HID; i++) {
+        p_dev = &btif_hh_cb.devices[i];
+        if (p_dev->dev_status != BTHH_CONN_STATE_UNKNOWN && p_dev->dev_handle == dev_handle) {
+            APPL_TRACE_WARNING("%s: Found an existing device with the same handle "
+                                                        "dev_status = %d, dev_handle =%d"
+                                                        ,__FUNCTION__,p_dev->dev_status
+                                                        ,p_dev->dev_handle);
+            btif_hh_close_poll_thread(p_dev);
+#ifdef BLUETOOTH_RTK_API
+            int device_type;
+            bdstr_t bdstr = {0};
+            if(&(p_dev->bd_addr))
+                 bdaddr_to_string(&(p_dev->bd_addr), bdstr,18);
+            btif_config_get_int((char const *)&bdstr,"DevType", &device_type);
+            if(device_type == BT_DEVICE_TYPE_BLE)
+                 rtkbt_api_NotifyHIDStatus(0, &(p_dev->bd_addr));
+#endif
+            break;
+        }
+     }
+}
+
+
+/*******************************************************************************
+**
+** Function         bta_hh_co_data
+**
+** Description      This function is executed by BTA when HID host receive a data
+**                  report.
+**
+** Parameters       dev_handle  - device handle
+**                  *p_rpt      - pointer to the report data
+**                  len         - length of report data
+**                  mode        - Hid host Protocol Mode
+**                  sub_clas    - Device Subclass
+**                  app_id      - application id
+**
+** Returns          void
+*******************************************************************************/
+void bta_hh_co_data(UINT8 dev_handle, UINT8 *p_rpt, UINT16 len, tBTA_HH_PROTO_MODE mode,
+                    UINT8 sub_class, UINT8 ctry_code, BD_ADDR peer_addr, UINT8 app_id)
+{
+    btif_hh_device_t *p_dev;
+    UNUSED(peer_addr);
+
+    APPL_TRACE_DEBUG("%s: dev_handle = %d, subclass = 0x%02X, mode = %d, "
+         "ctry_code = %d, app_id = %d",
+         __FUNCTION__, dev_handle, sub_class, mode, ctry_code, app_id);
+
+    p_dev = btif_hh_find_connected_dev_by_handle(dev_handle);
+    if (p_dev == NULL) {
+        APPL_TRACE_WARNING("%s: Error: unknown HID device handle %d", __FUNCTION__, dev_handle);
+        return;
+    }
+
+    // Send the HID data to the kernel.
+#ifdef BLUETOOTH_RTK
+    if (p_dev->fd >= 0) {
+#else
+    if ((p_dev->fd >= 0) && p_dev->ready_for_data) {
+#endif
+        bta_hh_co_write(p_dev->fd, p_rpt, len);
+    }else {
+        APPL_TRACE_WARNING("%s: Error: fd = %d, ready %d, len = %d", __FUNCTION__, p_dev->fd, 
+                            p_dev->ready_for_data, len);
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         bta_hh_co_send_hid_info
+**
+** Description      This function is called in btif_hh.c to process DSCP received.
+**
+** Parameters       dev_handle  - device handle
+**                  dscp_len    - report descriptor length
+**                  *p_dscp     - report descriptor
+**
+** Returns          void
+*******************************************************************************/
+void bta_hh_co_send_hid_info(btif_hh_device_t *p_dev, char *dev_name, UINT16 vendor_id,
+                             UINT16 product_id, UINT16 version, UINT8 ctry_code,
+                             int dscp_len, UINT8 *p_dscp)
+{
+    int result;
+    struct uhid_event ev;
+
+    if (p_dev->fd < 0) {
+        APPL_TRACE_WARNING("%s: Error: fd = %d, dscp_len = %d", __FUNCTION__, p_dev->fd, dscp_len);
+        return;
+    }
+
+    APPL_TRACE_WARNING("%s: fd = %d, name = [%s], dscp_len = %d", __FUNCTION__,
+                                                                    p_dev->fd, dev_name, dscp_len);
+    APPL_TRACE_WARNING("%s: vendor_id = 0x%04x, product_id = 0x%04x, version= 0x%04x,"
+                                                                    "ctry_code=0x%02x",__FUNCTION__,
+                                                                    vendor_id, product_id,
+                                                                    version, ctry_code);
+
+    //Create and send hid descriptor to kernel
+    memset(&ev, 0, sizeof(ev));
+    ev.type = UHID_CREATE;
+    strncpy((char*)ev.u.create.name, dev_name, sizeof(ev.u.create.name) - 1);
+    snprintf((char*)ev.u.create.uniq, sizeof(ev.u.create.uniq),
+             "%2.2X:%2.2X:%2.2X:%2.2X:%2.2X:%2.2X",
+             p_dev->bd_addr.address[5], p_dev->bd_addr.address[4],
+             p_dev->bd_addr.address[3], p_dev->bd_addr.address[2],
+             p_dev->bd_addr.address[1], p_dev->bd_addr.address[0]);
+    ev.u.create.rd_size = dscp_len;
+    ev.u.create.rd_data = p_dscp;
+    ev.u.create.bus = BUS_BLUETOOTH;
+    ev.u.create.vendor = vendor_id;
+    ev.u.create.product = product_id;
+    ev.u.create.version = version;
+    ev.u.create.country = ctry_code;
+    result = uhid_write(p_dev->fd, &ev);
+
+    APPL_TRACE_WARNING("%s: wrote descriptor to fd = %d, dscp_len = %d, result = %d", __FUNCTION__,
+                                                                    p_dev->fd, dscp_len, result);
+
+    if (result) {
+        APPL_TRACE_WARNING("%s: Error: failed to send DSCP, result = %d", __FUNCTION__, result);
+
+        /* The HID report descriptor is corrupted. Close the driver. */
+        close(p_dev->fd);
+        p_dev->fd = -1;
+    }
+}
+
+#if (BLE_INCLUDED == TRUE && BTA_HH_LE_INCLUDED == TRUE)
+/*******************************************************************************
+**
+** Function         bta_hh_le_co_rpt_info
+**
+** Description      This callout function is to convey the report information on
+**                  a HOGP device to the application. Application can save this
+**                  information in NV if device is bonded and load it back when
+**                  stack reboot.
+**
+** Parameters       remote_bda  - remote device address
+**                  p_entry     - report entry pointer
+**                  app_id      - application id
+**
+** Returns          void.
+**
+*******************************************************************************/
+void bta_hh_le_co_rpt_info(BD_ADDR remote_bda, tBTA_HH_RPT_CACHE_ENTRY *p_entry, UINT8 app_id)
+{
+    UNUSED(app_id);
+
+    unsigned idx = 0;
+
+    bdstr_t bdstr;
+    sprintf(bdstr, "%02x:%02x:%02x:%02x:%02x:%02x",
+        remote_bda[0], remote_bda[1], remote_bda[2],
+        remote_bda[3], remote_bda[4], remote_bda[5]);
+
+    size_t len = btif_config_get_bin_length(bdstr, "HidReport");
+    if (len >= sizeof(tBTA_HH_RPT_CACHE_ENTRY) && len <= sizeof(sReportCache))
+    {
+        btif_config_get_bin(bdstr, "HidReport", (uint8_t *)sReportCache, &len);
+        idx = len / sizeof(tBTA_HH_RPT_CACHE_ENTRY);
+    }
+
+    if (idx < BTA_HH_NV_LOAD_MAX)
+    {
+        memcpy(&sReportCache[idx++], p_entry, sizeof(tBTA_HH_RPT_CACHE_ENTRY));
+        btif_config_set_bin(bdstr, "HidReport", (const uint8_t *)sReportCache,
+            idx * sizeof(tBTA_HH_RPT_CACHE_ENTRY));
+        BTIF_TRACE_DEBUG("%s() - Saving report; dev=%s, idx=%d", __FUNCTION__, bdstr, idx);
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         bta_hh_le_co_cache_load
+**
+** Description      This callout function is to request the application to load the
+**                  cached HOGP report if there is any. When cache reading is completed,
+**                  bta_hh_le_ci_cache_load() is called by the application.
+**
+** Parameters       remote_bda  - remote device address
+**                  p_num_rpt: number of cached report
+**                  app_id      - application id
+**
+** Returns          the acched report array
+**
+*******************************************************************************/
+tBTA_HH_RPT_CACHE_ENTRY * bta_hh_le_co_cache_load (BD_ADDR remote_bda,
+                                                   UINT8 *p_num_rpt, UINT8 app_id)
+{
+    UNUSED(app_id);
+
+    bdstr_t bdstr;
+    sprintf(bdstr, "%02x:%02x:%02x:%02x:%02x:%02x",
+        remote_bda[0], remote_bda[1], remote_bda[2],
+        remote_bda[3], remote_bda[4], remote_bda[5]);
+
+    size_t len = btif_config_get_bin_length(bdstr, "HidReport");
+    if (!p_num_rpt && len < sizeof(tBTA_HH_RPT_CACHE_ENTRY))
+        return NULL;
+
+    if (len > sizeof(sReportCache))
+        len = sizeof(sReportCache);
+    btif_config_get_bin(bdstr, "HidReport", (uint8_t *)sReportCache, &len);
+    *p_num_rpt = len / sizeof(tBTA_HH_RPT_CACHE_ENTRY);
+
+    BTIF_TRACE_DEBUG("%s() - Loaded %d reports; dev=%s", __FUNCTION__, *p_num_rpt, bdstr);
+
+    return sReportCache;
+}
+
+/*******************************************************************************
+**
+** Function         bta_hh_le_co_reset_rpt_cache
+**
+** Description      This callout function is to reset the HOGP device cache.
+**
+** Parameters       remote_bda  - remote device address
+**
+** Returns          none
+**
+*******************************************************************************/
+void bta_hh_le_co_reset_rpt_cache (BD_ADDR remote_bda, UINT8 app_id)
+{
+    UNUSED(app_id);
+
+    bdstr_t bdstr;
+    sprintf(bdstr, "%02x:%02x:%02x:%02x:%02x:%02x",
+        remote_bda[0], remote_bda[1], remote_bda[2],
+        remote_bda[3], remote_bda[4], remote_bda[5]);
+    btif_config_remove(bdstr, "HidReport");
+
+    BTIF_TRACE_DEBUG("%s() - Reset cache for bda %s", __FUNCTION__, bdstr);
+}
+#endif /* #if (BLE_INCLUDED == TRUE && BTA_HH_LE_INCLUDED == TRUE) */
+
diff --git a/rtkbt/code/bt/btif/co/bta_hl_co.c b/rtkbt/code/bt/btif/co/bta_hl_co.c
new file mode 100755
index 0000000..e76d078
--- /dev/null
+++ b/rtkbt/code/bt/btif/co/bta_hl_co.c
@@ -0,0 +1,458 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the implementation file for the HeaLth device profile (HL)
+ *  subsystem call-out functions.
+ *
+ ******************************************************************************/
+
+#include <ctype.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <sys/un.h>
+#include <time.h>
+
+#include "osi/include/osi.h"
+#include "bta_api.h"
+#include "bta_hl_api.h"
+#include "bta_hl_ci.h"
+#include "bta_hl_co.h"
+#include "bta_sys.h"
+#include "btif_hl.h"
+#include "btif_util.h"
+#include "btm_api.h"
+
+/*****************************************************************************
+**  Constants and Data Types
+*****************************************************************************/
+/**************************
+**  Common Definitions
+***************************/
+
+
+
+
+/*******************************************************************************
+**
+** Function        bta_hl_co_get_num_of_mdep
+**
+** Description     This function is called to get the number of MDEPs for this
+**                 application ID
+**
+** Parameters      app_id - application ID
+**                 p_num_of_mdep (output) - number of MDEP configurations supported
+**                                          by the application
+**
+** Returns         Bloolean - TRUE success
+**
+*******************************************************************************/
+BOOLEAN bta_hl_co_get_num_of_mdep(UINT8 app_id, UINT8 *p_num_of_mdep)
+{
+    UINT8 app_idx;
+    BOOLEAN success = FALSE;
+
+    if (btif_hl_find_app_idx(app_id, &app_idx))
+    {
+        *p_num_of_mdep = p_btif_hl_cb->acb[app_idx].sup_feature.num_of_mdeps;
+        success = TRUE;
+    }
+
+
+    BTIF_TRACE_DEBUG("%s success=%d num_mdeps=%d",
+                      __FUNCTION__, success, *p_num_of_mdep );
+    return success;
+}
+
+/*******************************************************************************
+**
+** Function        bta_hl_co_advrtise_source_sdp
+**
+** Description     This function is called to find out whether the SOURCE MDEP
+**                 configuration information should be advertize in the SDP or nopt
+**
+** Parameters      app_id - application ID
+**
+** Returns         Bloolean - TRUE advertise the SOURCE MDEP configuration
+**                            information
+**
+*******************************************************************************/
+BOOLEAN bta_hl_co_advrtise_source_sdp(UINT8 app_id)
+{
+    BOOLEAN     advertize_source_sdp=FALSE;
+    UINT8       app_idx;
+
+    if (btif_hl_find_app_idx(app_id, &app_idx))
+    {
+        advertize_source_sdp = p_btif_hl_cb->acb[app_idx].sup_feature.advertize_source_sdp;
+    }
+
+
+    BTIF_TRACE_DEBUG("%s advertize_flag=%d", __FUNCTION__, advertize_source_sdp );
+
+    return advertize_source_sdp;
+}
+/*******************************************************************************
+**
+** Function        bta_hl_co_get_mdep_config
+**
+** Description     This function is called to get the supported feature
+**                 configuration for the specified mdep index and it also assigns
+**                 the MDEP ID for the specified mdep index
+**
+** Parameters      app_id - HDP application ID
+**                 mdep_idx - the mdep index
+**                  mdep_counter - number of mdeps
+**                 mdep_id  - the assigned MDEP ID for the specified medp_idx
+**                 p_mdl_cfg (output) - pointer to the MDEP configuration
+**
+**
+** Returns         Bloolean - TRUE success
+*******************************************************************************/
+BOOLEAN bta_hl_co_get_mdep_config(UINT8  app_id,
+                                  UINT8 mdep_idx,
+                                  UINT8 mdep_counter,
+                                  tBTA_HL_MDEP_ID mdep_id,
+                                  tBTA_HL_MDEP_CFG *p_mdep_cfg)
+{
+    UINT8       idx  ;
+    UINT8       app_idx;
+    BOOLEAN     success = FALSE;
+
+    BTIF_TRACE_DEBUG("%s app_id=%d mdep_idx=%d mdep_id=%d mdep_counter=%d",
+                      __FUNCTION__, app_id,mdep_idx,mdep_id,mdep_counter);
+
+    if (btif_hl_find_app_idx(app_id, &app_idx))
+    {
+        idx = mdep_idx -mdep_counter-1;
+        p_btif_hl_cb->acb[app_idx].sup_feature.mdep[idx].mdep_id = mdep_id;
+        memcpy(p_mdep_cfg,
+               &p_btif_hl_cb->acb[app_idx].sup_feature.mdep[idx].mdep_cfg,
+               sizeof(tBTA_HL_MDEP_CFG));
+
+        success = TRUE;
+    }
+
+    BTIF_TRACE_DEBUG("%s success=%d mdep_idx=%d mdep_id=%d",
+                      __FUNCTION__, success, mdep_idx, mdep_id );
+
+    return success;
+}
+
+
+/*******************************************************************************
+**
+** Function        bta_hl_co_get_echo_config
+**
+** Description     This function is called to get the echo test
+**                 maximum APDU size configurations
+**
+** Parameters      app_id - HDP application ID
+**                 p_echo_cfg (output) - pointer to the Echo test maximum APDU size
+**                                       configuration
+**
+** Returns         Bloolean - TRUE success
+*******************************************************************************/
+BOOLEAN bta_hl_co_get_echo_config(UINT8  app_id,
+                                  tBTA_HL_ECHO_CFG *p_echo_cfg)
+{
+    UINT8               app_idx;
+    BOOLEAN             success = FALSE;
+    btif_hl_app_cb_t    *p_acb;
+    tBTA_HL_SUP_FEATURE *p_sup;
+
+    BTIF_TRACE_DEBUG("%s app_id=%d",__FUNCTION__, app_id );
+
+    if (btif_hl_find_app_idx(app_id, &app_idx))
+    {
+        p_acb = BTIF_HL_GET_APP_CB_PTR(app_idx);
+        p_sup = &p_acb->sup_feature;
+        p_echo_cfg->max_rx_apdu_size = p_sup->echo_cfg.max_rx_apdu_size;
+        p_echo_cfg->max_tx_apdu_size = p_sup->echo_cfg.max_tx_apdu_size;
+        success = TRUE;
+    }
+
+    BTIF_TRACE_DEBUG("%s success=%d max tx_size=%d rx_size=%d",
+                      __FUNCTION__, success, p_echo_cfg->max_tx_apdu_size,
+                      p_echo_cfg->max_rx_apdu_size );
+
+    return success;
+}
+
+
+/*******************************************************************************
+**
+** Function        bta_hl_co_save_mdl
+**
+** Description     This function is called to save a MDL configuration item in persistent
+**                 storage
+**
+** Parameters      app_id - HDP application ID
+**                 item_idx - the MDL configuration storage index
+**                 p_mdl_cfg - pointer to the MDL configuration data
+**
+** Returns        void
+**
+*******************************************************************************/
+void bta_hl_co_save_mdl(UINT8 mdep_id, UINT8 item_idx, tBTA_HL_MDL_CFG *p_mdl_cfg )
+{
+
+    BTIF_TRACE_DEBUG("%s mdep_id =%d, item_idx=%d active=%d mdl_id=%d time=%d",
+                      __FUNCTION__, mdep_id, item_idx,
+                      p_mdl_cfg->active,
+                      p_mdl_cfg->mdl_id,
+                      p_mdl_cfg->time);
+
+    btif_hl_save_mdl_cfg(mdep_id, item_idx, p_mdl_cfg);
+
+}
+
+/*******************************************************************************
+**
+** Function        bta_hl_co_delete_mdl
+**
+** Description     This function is called to delete a MDL configuration item in persistent
+**                 storage
+**
+** Parameters      app_id - HDP application ID
+**                 item_idx - the MDL configuration storage index
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_hl_co_delete_mdl(UINT8 mdep_id, UINT8 item_idx)
+{
+
+
+    BTIF_TRACE_DEBUG("%s mdep_id=%d, item_idx=%d", __FUNCTION__, mdep_id, item_idx);
+
+    btif_hl_delete_mdl_cfg(mdep_id, item_idx);
+
+
+}
+
+/*******************************************************************************
+**
+** Function         bta_hl_co_get_mdl_config
+**
+** Description     This function is called to get the MDL configuration
+**                 from the persistent memory. This function shall only be called
+*8                 once after the device is powered up
+**
+** Parameters      app_id - HDP application ID
+**                 buffer_size - the unit of the buffer size is sizeof(tBTA_HL_MDL_CFG)
+**                 p_mdl_buf - Point to the starting location of the buffer
+**
+** Returns         BOOLEAN
+**
+**
+*******************************************************************************/
+BOOLEAN bta_hl_co_load_mdl_config (UINT8 app_id, UINT8 buffer_size,
+                                   tBTA_HL_MDL_CFG *p_mdl_buf )
+{
+    BOOLEAN result = TRUE;
+    UINT8 i;
+    tBTA_HL_MDL_CFG *p;
+
+    BTIF_TRACE_DEBUG("%s app_id=%d, num_items=%d",
+                      __FUNCTION__, app_id, buffer_size);
+
+    if (buffer_size > BTA_HL_NUM_MDL_CFGS)
+    {
+        result = FALSE;
+        return result;
+    }
+    result = btif_hl_load_mdl_config(app_id, buffer_size, p_mdl_buf);
+
+    if (result)
+    {
+        for (i=0, p=p_mdl_buf; i<buffer_size; i++, p++ )
+        {
+            if (p->active)
+            {
+                BTIF_TRACE_DEBUG("i=%d mdl_id=0x%x dch_mode=%d local mdep_role=%d mdep_id=%d mtu=%d",
+                                  i, p->mdl_id, p->dch_mode, p->local_mdep_role, p->local_mdep_role, p->mtu);
+            }
+        }
+    }
+
+    BTIF_TRACE_DEBUG("%s success=%d num_items=%d", __FUNCTION__, result, buffer_size);
+
+    return result;
+}
+
+/*******************************************************************************
+**
+** Function         bta_hl_co_get_tx_data
+**
+** Description     Get the data to be sent
+**
+** Parameters      app_id - HDP application ID
+**                 mdl_handle - MDL handle
+**                 buf_size - the size of the buffer
+**                 p_buf - the buffer pointer
+**                 evt - the evt to be passed back to the HL in the
+**                       bta_hl_ci_get_tx_data call-in function
+**
+** Returns        Void
+**
+*******************************************************************************/
+void bta_hl_co_get_tx_data (UINT8 app_id, tBTA_HL_MDL_HANDLE mdl_handle,
+                            UINT16 buf_size, UINT8 *p_buf,  UINT16 evt)
+{
+    UINT8 app_idx, mcl_idx, mdl_idx;
+    btif_hl_mdl_cb_t *p_dcb;
+    tBTA_HL_STATUS status = BTA_HL_STATUS_FAIL;
+
+    BTIF_TRACE_DEBUG("%s app_id=%d mdl_handle=0x%x buf_size=%d",
+                      __FUNCTION__, app_id, mdl_handle, buf_size);
+
+    if (btif_hl_find_mdl_idx_using_handle(mdl_handle, &app_idx, &mcl_idx, &mdl_idx))
+    {
+        p_dcb = BTIF_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx);
+
+        if (p_dcb->tx_size <= buf_size )
+        {
+            memcpy(p_buf, p_dcb->p_tx_pkt, p_dcb->tx_size);
+            osi_free_and_reset((void **)&p_dcb->p_tx_pkt);
+            p_dcb->tx_size = 0;
+            status = BTA_HL_STATUS_OK;
+        }
+    }
+
+
+    bta_hl_ci_get_tx_data(mdl_handle,  status, evt);
+
+}
+
+
+/*******************************************************************************
+**
+** Function        bta_hl_co_put_rx_data
+**
+** Description     Put the received data
+**
+** Parameters      app_id - HDP application ID
+**                 mdl_handle - MDL handle
+**                 data_size - the size of the data
+**                 p_data - the data pointer
+**                 evt - the evt to be passed back to the HL in the
+**                       bta_hl_ci_put_rx_data call-in function
+**
+** Returns        Void
+**
+*******************************************************************************/
+void bta_hl_co_put_rx_data (UINT8 app_id, tBTA_HL_MDL_HANDLE mdl_handle,
+                            UINT16 data_size, UINT8 *p_data, UINT16 evt)
+{
+    UINT8 app_idx, mcl_idx, mdl_idx;
+    btif_hl_mdl_cb_t *p_dcb;
+    tBTA_HL_STATUS status = BTA_HL_STATUS_FAIL;
+    BTIF_TRACE_DEBUG("%s app_id=%d mdl_handle=0x%x data_size=%d",
+                      __FUNCTION__,app_id, mdl_handle, data_size);
+
+    if (btif_hl_find_mdl_idx_using_handle(mdl_handle, &app_idx, &mcl_idx, &mdl_idx))
+    {
+        p_dcb = BTIF_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx);
+
+        p_dcb->p_rx_pkt = (UINT8 *)osi_malloc(data_size);
+        memcpy(p_dcb->p_rx_pkt, p_data, data_size);
+        if (p_dcb->p_scb) {
+            BTIF_TRACE_DEBUG("app_idx=%d mcl_idx=0x%x mdl_idx=0x%x data_size=%d",
+                             app_idx, mcl_idx, mdl_idx, data_size);
+            ssize_t r;
+            OSI_NO_INTR(r = send(p_dcb->p_scb->socket_id[1], p_dcb->p_rx_pkt,
+                                 data_size, 0));
+            if (r == data_size) {
+                BTIF_TRACE_DEBUG("socket send success data_size=%d", data_size);
+                status = BTA_HL_STATUS_OK;
+            } else {
+                BTIF_TRACE_ERROR("socket send failed r=%d data_size=%d", r,
+                                 data_size);
+            }
+        }
+        osi_free_and_reset((void **)&p_dcb->p_rx_pkt);
+    }
+
+    bta_hl_ci_put_rx_data(mdl_handle,  status, evt);
+}
+
+
+/*******************************************************************************
+**
+** Function         bta_hl_co_get_tx_data
+**
+** Description     Get the Echo data to be sent
+**
+** Parameters      app_id - HDP application ID
+**                 mcl_handle - MCL handle
+**                 buf_size - the size of the buffer
+**                 p_buf - the buffer pointer
+**                 evt - the evt to be passed back to the HL in the
+**                       bta_hl_ci_get_tx_data call-in function
+**
+** Returns        Void
+**
+*******************************************************************************/
+void bta_hl_co_get_echo_data (UINT8 app_id, tBTA_HL_MCL_HANDLE mcl_handle,
+                              UINT16 buf_size, UINT8 *p_buf,  UINT16 evt)
+{
+    tBTA_HL_STATUS status = BTA_HL_STATUS_FAIL;
+    UNUSED(app_id);
+    UNUSED(buf_size);
+    UNUSED(p_buf);
+
+    BTIF_TRACE_ERROR("%s not supported",__FUNCTION__);
+    bta_hl_ci_get_echo_data(mcl_handle,  status, evt);
+}
+
+
+/*******************************************************************************
+**
+** Function        bta_hl_co_put_echo_data
+**
+** Description     Put the received loopback echo data
+**
+** Parameters      app_id - HDP application ID
+**                 mcl_handle - MCL handle
+**                 data_size - the size of the data
+**                 p_data - the data pointer
+**                 evt - the evt to be passed back to the HL in the
+**                       bta_hl_ci_put_echo_data call-in function
+**
+** Returns        Void
+**
+*******************************************************************************/
+void bta_hl_co_put_echo_data (UINT8 app_id, tBTA_HL_MCL_HANDLE mcl_handle,
+                              UINT16 data_size, UINT8 *p_data, UINT16 evt)
+{
+    tBTA_HL_STATUS status = BTA_HL_STATUS_FAIL;
+    UNUSED(app_id);
+    UNUSED(data_size);
+    UNUSED(p_data);
+
+    BTIF_TRACE_ERROR("%s not supported",__FUNCTION__);
+    bta_hl_ci_put_echo_data(mcl_handle,  status, evt);
+}
+
diff --git a/rtkbt/code/bt/btif/co/bta_pan_co.c b/rtkbt/code/bt/btif/co/bta_pan_co.c
new file mode 100755
index 0000000..e106e0e
--- /dev/null
+++ b/rtkbt/code/bt/btif/co/bta_pan_co.c
@@ -0,0 +1,357 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  Filename:      bta_pan_co.c
+ *
+ *  Description:   PAN stack callout api
+ *
+ *
+ ******************************************************************************/
+#include "bta_api.h"
+#include "bta_pan_api.h"
+#include "bta_pan_ci.h"
+#include "bta_pan_co.h"
+#include "pan_api.h"
+#include "bt_common.h"
+#include <hardware/bluetooth.h>
+#include <hardware/bt_pan.h>
+#include "btif_pan_internal.h"
+#include "btif_sock_thread.h"
+#include <string.h>
+#include "btif_util.h"
+#include "btcore/include/bdaddr.h"
+
+/*******************************************************************************
+**
+** Function         bta_pan_co_init
+**
+** Description
+**
+**
+** Returns          Data flow mask.
+**
+*******************************************************************************/
+UINT8 bta_pan_co_init(UINT8 *q_level)
+{
+    BTIF_TRACE_API("bta_pan_co_init");
+
+    /* set the q_level to 30 buffers */
+    *q_level = 30;
+
+    //return (BTA_PAN_RX_PULL | BTA_PAN_TX_PULL);
+    return (BTA_PAN_RX_PUSH_BUF | BTA_PAN_RX_PUSH | BTA_PAN_TX_PULL);
+}
+
+/******************************************************************************
+**
+** Function         bta_pan_co_open
+**
+** Description
+**
+**
+**
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_pan_co_open(UINT16 handle, UINT8 app_id, tBTA_PAN_ROLE local_role,
+                            tBTA_PAN_ROLE peer_role, BD_ADDR peer_addr)
+{
+    BTIF_TRACE_API("bta_pan_co_open:app_id:%d, local_role:%d, peer_role:%d, "
+                    "handle:%d", app_id, local_role, peer_role, handle);
+    btpan_conn_t* conn = btpan_find_conn_addr(peer_addr);
+    if(conn == NULL)
+        conn = btpan_new_conn(handle, peer_addr, local_role, peer_role);
+    if(conn)
+    {
+        BTIF_TRACE_DEBUG("bta_pan_co_open:tap_fd:%d, open_count:%d, "
+            "conn->handle:%d should = handle:%d, local_role:%d, remote_role:%d",
+             btpan_cb.tap_fd, btpan_cb.open_count, conn->handle, handle,
+             conn->local_role, conn->remote_role);
+        //refresh the role & bt address
+
+        btpan_cb.open_count++;
+        conn->handle = handle;
+        //bdcpy(conn->peer, peer_addr);
+        if(btpan_cb.tap_fd < 0)
+        {
+            btpan_cb.tap_fd = btpan_tap_open();
+            if(btpan_cb.tap_fd >= 0)
+                create_tap_read_thread(btpan_cb.tap_fd);
+        }
+        if(btpan_cb.tap_fd >= 0)
+        {
+            btpan_cb.flow = 1;
+            conn->state = PAN_STATE_OPEN;
+            bta_pan_ci_rx_ready(handle);
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_pan_co_close
+**
+** Description      This function is called by PAN when a connection to a
+**                  peer is closed.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_pan_co_close(UINT16 handle, UINT8 app_id)
+{
+    BTIF_TRACE_API("bta_pan_co_close:app_id:%d, handle:%d", app_id, handle);
+    btpan_conn_t* conn = btpan_find_conn_handle(handle);
+    if(conn && conn->state == PAN_STATE_OPEN)
+    {
+        BTIF_TRACE_DEBUG("bta_pan_co_close");
+
+        // let bta close event reset this handle as it needs
+        // the handle to find the connection upon CLOSE
+        //conn->handle = -1;
+        conn->state = PAN_STATE_CLOSE;
+        btpan_cb.open_count--;
+
+        if(btpan_cb.open_count == 0 && btpan_cb.tap_fd != -1)
+        {
+            btpan_tap_close(btpan_cb.tap_fd);
+            btpan_cb.tap_fd = -1;
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_pan_co_tx_path
+**
+** Description      This function is called by PAN to transfer data on the
+**                  TX path; that is, data being sent from BTA to the phone.
+**                  This function is used when the TX data path is configured
+**                  to use the pull interface.  The implementation of this
+**                  function will typically call Bluetooth stack functions
+**                  PORT_Read() or PORT_ReadData() to read data from RFCOMM
+**                  and then a platform-specific function to send data that
+**                  data to the phone.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_pan_co_tx_path(UINT16 handle, UINT8 app_id)
+{
+    BT_HDR          *p_buf;
+    BD_ADDR            src;
+    BD_ADDR            dst;
+    UINT16            protocol;
+    BOOLEAN            ext;
+    BOOLEAN         forward;
+
+    BTIF_TRACE_API("%s, handle:%d, app_id:%d", __func__, handle, app_id);
+
+    btpan_conn_t* conn = btpan_find_conn_handle(handle);
+    if (!conn)
+    {
+        BTIF_TRACE_ERROR("%s: cannot find pan connection", __func__);
+        return;
+    }
+    else if(conn->state != PAN_STATE_OPEN)
+    {
+        BTIF_TRACE_ERROR("%s: conn is not opened, conn:%p, conn->state:%d",
+            __func__, conn, conn->state);
+        return;
+    }
+
+    do
+    {
+        /* read next data buffer from pan */
+        if ((p_buf = bta_pan_ci_readbuf(handle, src, dst, &protocol,
+                                 &ext, &forward)))
+        {
+            bdstr_t bdstr;
+            BTIF_TRACE_DEBUG("%s, calling btapp_tap_send, "
+                "p_buf->len:%d, offset:%d", __func__, p_buf->len, p_buf->offset);
+            if(is_empty_eth_addr(conn->eth_addr) && is_valid_bt_eth_addr(src))
+            {
+                BTIF_TRACE_DEBUG("%s pan bt peer addr: %s", __func__,
+                    bdaddr_to_string((bt_bdaddr_t *)conn->peer, bdstr, sizeof(bdstr)));
+                bdaddr_to_string((bt_bdaddr_t *)src, bdstr, sizeof(bdstr));
+                BTIF_TRACE_DEBUG("%s:     update its ethernet addr: %s", __func__,
+                    bdaddr_to_string((bt_bdaddr_t *)src, bdstr, sizeof(bdstr)));
+                memcpy(conn->eth_addr, src, sizeof(conn->eth_addr));
+
+            }
+            btpan_tap_send(btpan_cb.tap_fd, src, dst, protocol,
+                (char*)(p_buf + 1) + p_buf->offset, p_buf->len, ext, forward);
+            osi_free(p_buf);
+        }
+
+    } while (p_buf != NULL);
+}
+
+/*******************************************************************************
+**
+** Function         bta_pan_co_rx_path
+**
+** Description
+**
+**
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_pan_co_rx_path(UINT16 handle, UINT8 app_id)
+{
+    UNUSED(handle);
+    UNUSED(app_id);
+
+    BTIF_TRACE_API("bta_pan_co_rx_path not used");
+}
+
+/*******************************************************************************
+**
+** Function         bta_pan_co_tx_write
+**
+** Description      This function is called by PAN to send data to the phone
+**                  when the TX path is configured to use a push interface.
+**                  The implementation of this function must copy the data to
+**                  the phone's memory.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_pan_co_tx_write(UINT16 handle, UINT8 app_id, BD_ADDR src, BD_ADDR dst,
+                                UINT16 protocol, UINT8 *p_data,
+                                UINT16 len, BOOLEAN ext, BOOLEAN forward)
+{
+    UNUSED(handle);
+    UNUSED(app_id);
+    UNUSED(src);
+    UNUSED(dst);
+    UNUSED(protocol);
+    UNUSED(p_data);
+    UNUSED(len);
+    UNUSED(ext);
+    UNUSED(forward);
+
+    BTIF_TRACE_API("bta_pan_co_tx_write not used");
+}
+
+/*******************************************************************************
+**
+** Function         bta_pan_co_tx_writebuf
+**
+** Description      This function is called by PAN to send data to the phone
+**                  when the TX path is configured to use a push interface with
+**                  zero copy.  The phone must free the buffer using function
+**                  osi_free() when it is through processing the buffer.
+**
+**
+** Returns          TRUE if flow enabled
+**
+*******************************************************************************/
+void  bta_pan_co_tx_writebuf(UINT16 handle, UINT8 app_id, BD_ADDR src,
+                                    BD_ADDR dst, UINT16 protocol, BT_HDR *p_buf,
+                                    BOOLEAN ext, BOOLEAN forward)
+{
+    UNUSED(handle);
+    UNUSED(app_id);
+    UNUSED(src);
+    UNUSED(dst);
+    UNUSED(protocol);
+    UNUSED(p_buf);
+    UNUSED(ext);
+    UNUSED(forward);
+
+    BTIF_TRACE_API("bta_pan_co_tx_writebuf not used");
+}
+
+/*******************************************************************************
+**
+** Function         bta_pan_co_rx_flow
+**
+** Description      This function is called by PAN to enable or disable
+**                  data flow on the RX path when it is configured to use
+**                  a push interface.  If data flow is disabled the phone must
+**                  not call bta_pan_ci_rx_write() or bta_pan_ci_rx_writebuf()
+**                  until data flow is enabled again.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_pan_co_rx_flow(UINT16 handle, UINT8 app_id, BOOLEAN enable)
+{
+    UNUSED(handle);
+    UNUSED(app_id);
+    UNUSED(enable);
+
+    BTIF_TRACE_API("bta_pan_co_rx_flow, enabled:%d, not used", enable);
+    btpan_conn_t* conn = btpan_find_conn_handle(handle);
+    if(!conn || conn->state != PAN_STATE_OPEN)
+        return;
+    btpan_set_flow_control(enable);
+}
+
+/*******************************************************************************
+**
+** Function         bta_pan_co_filt_ind
+**
+** Description      protocol filter indication from peer device
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_pan_co_pfilt_ind(UINT16 handle, BOOLEAN indication, tBTA_PAN_STATUS result,
+                                    UINT16 len, UINT8 *p_filters)
+{
+    UNUSED(handle);
+    UNUSED(indication);
+    UNUSED(result);
+    UNUSED(len);
+    UNUSED(p_filters);
+
+    BTIF_TRACE_API("bta_pan_co_pfilt_ind");
+}
+
+/*******************************************************************************
+**
+** Function         bta_pan_co_mfilt_ind
+**
+** Description      multicast filter indication from peer device
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_pan_co_mfilt_ind(UINT16 handle, BOOLEAN indication, tBTA_PAN_STATUS result,
+                                    UINT16 len, UINT8 *p_filters)
+{
+    UNUSED(handle);
+    UNUSED(indication);
+    UNUSED(result);
+    UNUSED(len);
+    UNUSED(p_filters);
+
+    BTIF_TRACE_API("bta_pan_co_mfilt_ind");
+}
+
diff --git a/rtkbt/code/bt/btif/include/btif_api.h b/rtkbt/code/bt/btif/include/btif_api.h
new file mode 100755
index 0000000..355f188
--- /dev/null
+++ b/rtkbt/code/bt/btif/include/btif_api.h
@@ -0,0 +1,423 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/*******************************************************************************
+ *
+ *  Filename:      btif_api.h
+ *
+ *  Description:   Main API header file for all BTIF functions accessed
+ *                 from main bluetooth HAL. All HAL extensions will not
+ *                 require headerfiles as they would be accessed through
+ *                 callout/callins.
+ *
+ *******************************************************************************/
+
+#ifndef BTIF_API_H
+#define BTIF_API_H
+
+#include <hardware/bluetooth.h>
+
+#include "btif_common.h"
+#include "btif_dm.h"
+
+/*******************************************************************************
+**  BTIF CORE API
+********************************************************************************/
+
+/*******************************************************************************
+**
+** Function         btif_init_bluetooth
+**
+** Description      Creates BTIF task and prepares BT scheduler for startup
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+bt_status_t btif_init_bluetooth(void);
+
+/*******************************************************************************
+**
+** Function         btif_enable_bluetooth
+**
+** Description      Performs chip power on and kickstarts OS scheduler
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+bt_status_t btif_enable_bluetooth(void);
+
+/*******************************************************************************
+**
+** Function         btif_disable_bluetooth
+**
+** Description      Inititates shutdown of Bluetooth system.
+**                  Any active links will be dropped and device entering
+**                  non connectable/discoverable mode
+**
+** Returns          void
+**
+*******************************************************************************/
+bt_status_t btif_disable_bluetooth(void);
+
+/*******************************************************************************
+**
+** Function         btif_cleanup_bluetooth
+**
+** Description      Cleanup BTIF state.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+bt_status_t btif_cleanup_bluetooth(void);
+
+/*******************************************************************************
+**
+** Function         is_restricted_mode
+**
+** Description      Checks if BT was enabled in restriced mode. In restricted
+**                  mode, bonds that are created are marked as temporary.
+**                  These bonds persist until we leave restricted mode, at
+**                  which point they will be deleted from the config. Also
+**                  while in restricted mode, the user can access devices
+**                  that are already paired before entering restricted mode,
+**                  but they cannot remove any of these devices.
+**
+** Returns          bool
+**
+*******************************************************************************/
+bool is_restricted_mode(void);
+
+/*******************************************************************************
+**
+** Function         btif_get_adapter_properties
+**
+** Description      Fetches all local adapter properties
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+bt_status_t btif_get_adapter_properties(void);
+
+/*******************************************************************************
+**
+** Function         btif_get_adapter_property
+**
+** Description      Fetches property value from local cache
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+bt_status_t btif_get_adapter_property( bt_property_type_t type);
+
+/*******************************************************************************
+**
+** Function         btif_set_adapter_property
+**
+** Description      Updates core stack with property value and stores it in
+**                  local cache
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+bt_status_t btif_set_adapter_property( const bt_property_t *property);
+
+/*******************************************************************************
+**
+** Function         btif_get_remote_device_property
+**
+** Description      Fetches the remote device property from the NVRAM
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+bt_status_t btif_get_remote_device_property( bt_bdaddr_t *remote_addr,
+                                             bt_property_type_t type);
+
+/*******************************************************************************
+**
+** Function         btif_get_remote_device_properties
+**
+** Description      Fetches all the remote device properties from NVRAM
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+bt_status_t btif_get_remote_device_properties( bt_bdaddr_t *remote_addr);
+
+/*******************************************************************************
+**
+** Function         btif_set_remote_device_property
+**
+** Description      Writes the remote device property to NVRAM.
+**                  Currently, BT_PROPERTY_REMOTE_FRIENDLY_NAME is the only
+**                  remote device property that can be set
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+bt_status_t btif_set_remote_device_property( bt_bdaddr_t *remote_addr,
+                                             const bt_property_t *property);
+
+/*******************************************************************************
+**
+** Function         btif_get_remote_service_record
+**
+** Description      Looks up the service matching uuid on the remote device
+**                  and fetches the SCN and service_name if the UUID is found
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+bt_status_t btif_get_remote_service_record( bt_bdaddr_t *remote_addr,
+                                            bt_uuid_t *uuid);
+
+
+/*******************************************************************************
+**  BTIF DM API
+********************************************************************************/
+
+/*******************************************************************************
+**
+** Function         btif_dm_start_discovery
+**
+** Description      Start device discovery/inquiry
+**
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+bt_status_t btif_dm_start_discovery(void);
+
+/*******************************************************************************
+**
+** Function         btif_dm_cancel_discovery
+**
+** Description      Cancels search
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+bt_status_t btif_dm_cancel_discovery(void);
+
+/*******************************************************************************
+**
+** Function         btif_dm_create_bond
+**
+** Description      Initiate bonding with the specified device
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+bt_status_t btif_dm_create_bond(const bt_bdaddr_t *bd_addr, int transport);
+
+/*******************************************************************************
+**
+** Function         btif_dm_create_bond_out_of_band
+**
+** Description      Initiate bonding with the specified device using OOB data.
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+bt_status_t btif_dm_create_bond_out_of_band(const bt_bdaddr_t *bd_addr, int transport,
+                                    const bt_out_of_band_data_t *oob_data);
+
+/*******************************************************************************
+**
+** Function         btif_dm_cancel_bond
+**
+** Description      Initiate bonding with the specified device
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+bt_status_t btif_dm_cancel_bond(const bt_bdaddr_t *bd_addr);
+
+/*******************************************************************************
+**
+** Function         btif_dm_remove_bond
+**
+** Description      Removes bonding with the specified device
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+bt_status_t btif_dm_remove_bond(const bt_bdaddr_t *bd_addr);
+
+/*******************************************************************************
+**
+** Function         btif_dm_get_connection_state
+**
+** Description      Returns whether the remote device is currently connected
+**
+** Returns          0 if not connected
+**
+*******************************************************************************/
+uint16_t btif_dm_get_connection_state(const bt_bdaddr_t *bd_addr);
+
+/*******************************************************************************
+**
+** Function         btif_dm_pin_reply
+**
+** Description      BT legacy pairing - PIN code reply
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+bt_status_t btif_dm_pin_reply( const bt_bdaddr_t *bd_addr, uint8_t accept,
+                               uint8_t pin_len, bt_pin_code_t *pin_code);
+
+/*******************************************************************************
+**
+** Function         btif_dm_passkey_reply
+**
+** Description      BT SSP passkey reply
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+bt_status_t btif_dm_passkey_reply( const bt_bdaddr_t *bd_addr,
+                                   uint8_t accept, uint32_t passkey);
+
+/*******************************************************************************
+**
+** Function         btif_dm_ssp_reply
+**
+** Description      BT SSP Reply - Just Works, Numeric Comparison & Passkey Entry
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+bt_status_t btif_dm_ssp_reply( const bt_bdaddr_t *bd_addr,
+                              bt_ssp_variant_t variant, uint8_t accept,
+                              uint32_t passkey);
+
+/*******************************************************************************
+**
+** Function         btif_dm_get_adapter_property
+**
+** Description      Queries the BTA for the adapter property
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+bt_status_t btif_dm_get_adapter_property(bt_property_t *prop);
+
+/*******************************************************************************
+**
+** Function         btif_dm_get_remote_services
+**
+** Description      Start SDP to get remote services
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+bt_status_t btif_dm_get_remote_service_record(bt_bdaddr_t *remote_addr,
+                                              bt_uuid_t *uuid);
+
+
+/*******************************************************************************
+**
+** Function         btif_dm_get_remote_services
+**
+** Description      Start SDP to get remote services
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+bt_status_t btif_dm_get_remote_services(bt_bdaddr_t *remote_addr);
+
+/*******************************************************************************
+**
+** Function         btif_dm_get_remote_services_by_transport
+**
+** Description      Start SDP to get remote services by transport
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+bt_status_t btif_dm_get_remote_services_by_transport(bt_bdaddr_t *remote_addr, int transport);
+
+/*******************************************************************************
+**
+** Function         btif_dut_mode_configure
+**
+** Description      Configure Test Mode - 'enable' to 1 puts the device in test mode and 0 exits
+**                       test mode
+**
+** Returns          BT_STATUS_SUCCESS on success
+**
+*******************************************************************************/
+bt_status_t btif_dut_mode_configure(uint8_t enable);
+
+/*******************************************************************************
+**
+** Function         btif_dut_mode_send
+**
+** Description     Sends a HCI Vendor specific command to the controller
+**
+** Returns          BT_STATUS_SUCCESS on success
+**
+*******************************************************************************/
+bt_status_t btif_dut_mode_send(uint16_t opcode, uint8_t *buf, uint8_t len);
+
+/*******************************************************************************
+**
+** Function         btif_le_test_mode
+**
+** Description     Sends a HCI BLE Test command to the Controller
+**
+** Returns          BT_STATUS_SUCCESS on success
+**
+*******************************************************************************/
+bt_status_t btif_le_test_mode(uint16_t opcode, uint8_t *buf, uint8_t len);
+
+/*******************************************************************************
+**
+** Function         btif_dm_read_energy_info
+**
+** Description     Reads the energy info from controller
+**
+** Returns          void
+**
+*******************************************************************************/
+void btif_dm_read_energy_info();
+
+/*******************************************************************************
+**
+** Function         btif_config_hci_snoop_log
+**
+** Description     enable or disable HCI snoop log
+**
+** Returns          BT_STATUS_SUCCESS on success
+**
+*******************************************************************************/
+bt_status_t btif_config_hci_snoop_log(uint8_t enable);
+
+/*******************************************************************************
+**
+** Function         btif_debug_bond_event_dump
+**
+** Description     Dump bond event information
+**
+** Returns          void
+**
+*******************************************************************************/
+void btif_debug_bond_event_dump(int fd);
+#endif /* BTIF_API_H */
diff --git a/rtkbt/code/bt/btif/include/btif_av.h b/rtkbt/code/bt/btif/include/btif_av.h
new file mode 100755
index 0000000..1fc7cfe
--- /dev/null
+++ b/rtkbt/code/bt/btif/include/btif_av.h
@@ -0,0 +1,218 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/*******************************************************************************
+ *
+ *  Filename:      btif_av.h
+ *
+ *  Description:   Main API header file for all BTIF AV functions accessed
+ *                 from internal stack.
+ *
+ *******************************************************************************/
+
+#ifndef BTIF_AV_H
+#define BTIF_AV_H
+
+#include "btif_common.h"
+#include "btif_sm.h"
+#include "bta_av_api.h"
+
+
+/*******************************************************************************
+**  Type definitions for callback functions
+********************************************************************************/
+
+typedef enum {
+    /* Reuse BTA_AV_XXX_EVT - No need to redefine them here */
+    BTIF_AV_CONNECT_REQ_EVT = BTA_AV_MAX_EVT,
+    BTIF_AV_DISCONNECT_REQ_EVT,
+    BTIF_AV_START_STREAM_REQ_EVT,
+    BTIF_AV_STOP_STREAM_REQ_EVT,
+    BTIF_AV_SUSPEND_STREAM_REQ_EVT,
+    BTIF_AV_SINK_CONFIG_REQ_EVT,
+    BTIF_AV_OFFLOAD_START_REQ_EVT,
+    BTIF_AV_SINK_FOCUS_REQ_EVT,
+    BTIF_AV_CLEANUP_REQ_EVT,
+} btif_av_sm_event_t;
+
+
+/*******************************************************************************
+**  BTIF AV API
+********************************************************************************/
+
+/*******************************************************************************
+**
+** Function         btif_av_get_sm_handle
+**
+** Description      Fetches current av SM handle
+**
+** Returns          None
+**
+*******************************************************************************/
+
+btif_sm_handle_t btif_av_get_sm_handle(void);
+
+/*******************************************************************************
+**
+** Function         btif_av_get_addr
+**
+** Description      Fetches current AV BD address
+**
+** Returns          BD address
+**
+*******************************************************************************/
+
+bt_bdaddr_t btif_av_get_addr(void);
+
+/*******************************************************************************
+** Function         btif_av_is_sink_enabled
+**
+** Description      Checks if A2DP Sink is enabled or not
+**
+** Returns          TRUE if A2DP Sink is enabled, false otherwise
+**
+*******************************************************************************/
+
+BOOLEAN btif_av_is_sink_enabled(void);
+
+/*******************************************************************************
+**
+** Function         btif_av_stream_ready
+**
+** Description      Checks whether AV is ready for starting a stream
+**
+** Returns          None
+**
+*******************************************************************************/
+
+BOOLEAN btif_av_stream_ready(void);
+
+/*******************************************************************************
+**
+** Function         btif_av_stream_started_ready
+**
+** Description      Checks whether AV ready for media start in streaming state
+**
+** Returns          None
+**
+*******************************************************************************/
+
+BOOLEAN btif_av_stream_started_ready(void);
+
+/*******************************************************************************
+**
+** Function         btif_dispatch_sm_event
+**
+** Description      Send event to AV statemachine
+**
+** Returns          None
+**
+*******************************************************************************/
+
+/* used to pass events to AV statemachine from other tasks */
+void btif_dispatch_sm_event(btif_av_sm_event_t event, void *p_data, int len);
+
+/*******************************************************************************
+**
+** Function         btif_av_init
+**
+** Description      Initializes btif AV if not already done
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+
+bt_status_t btif_av_init(int service_id);
+
+/*******************************************************************************
+**
+** Function         btif_av_is_connected
+**
+** Description      Checks if av has a connected sink
+**
+** Returns          BOOLEAN
+**
+*******************************************************************************/
+
+BOOLEAN btif_av_is_connected(void);
+
+
+/*******************************************************************************
+**
+** Function         btif_av_is_peer_edr
+**
+** Description      Check if the connected a2dp device supports
+**                  EDR or not. Only when connected this function
+**                  will accurately provide a true capability of
+**                  remote peer. If not connected it will always be false.
+**
+** Returns          TRUE if remote device is capable of EDR
+**
+*******************************************************************************/
+
+BOOLEAN btif_av_is_peer_edr(void);
+
+#ifdef USE_AUDIO_TRACK
+/*******************************************************************************
+**
+** Function         audio_focus_status
+**
+** Description      Update Audio Focus State
+**
+** Returns          None
+**
+*******************************************************************************/
+void audio_focus_status(int state);
+
+/*******************************************************************************
+**
+** Function         btif_queue_focus_request
+**
+** Description      This is used to move context to btif and
+**                  queue audio_focus_request
+**
+** Returns          none
+**
+*******************************************************************************/
+void btif_queue_focus_request(void);
+#endif
+
+/******************************************************************************
+**
+** Function         btif_av_clear_remote_suspend_flag
+**
+** Description      Clears remote suspended flag
+**
+** Returns          Void
+********************************************************************************/
+void btif_av_clear_remote_suspend_flag(void);
+
+/*******************************************************************************
+**
+** Function         btif_av_peer_supports_3mbps
+**
+** Description      Check if the connected A2DP device supports
+**                  3 Mbps EDR. This function will only work while connected.
+**                  If not connected it will always return false.
+**
+** Returns          TRUE if remote device is EDR and supports 3 Mbps
+**
+*******************************************************************************/
+BOOLEAN btif_av_peer_supports_3mbps(void);
+
+#endif /* BTIF_AV_H */
diff --git a/rtkbt/code/bt/btif/include/btif_av_api.h b/rtkbt/code/bt/btif/include/btif_av_api.h
new file mode 100755
index 0000000..86cd40b
--- /dev/null
+++ b/rtkbt/code/bt/btif/include/btif_av_api.h
@@ -0,0 +1,210 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/*****************************************************************************
+ **
+ **  Name:           btif_av_api.h
+ **
+ **  Description:    This is the public interface file for the advanced
+ **                  audio/video streaming (AV) subsystem of BTIF, Broadcom's
+ **                  Bluetooth application layer for mobile phones.
+ **
+ *****************************************************************************/
+
+#ifndef BTIF_AV_API_H
+#define BTIF_AV_API_H
+
+#include "bt_target.h"
+#include "bta_av_api.h"
+#include "uipc.h"
+
+#include "btif_media.h"
+#include "a2d_api.h"
+#include "a2d_sbc.h"
+
+
+/*****************************************************************************
+ **  Constants and data types
+ *****************************************************************************/
+
+/* Codec type */
+#define BTIF_AV_CODEC_NONE       0xFF
+#define BTIF_AV_CODEC_SBC        A2D_MEDIA_CT_SBC        /* SBC media codec type */
+
+#define BTIF_AV_CODEC_PCM        0x5                     /* Raw PCM */
+
+typedef UINT8 tBTIF_AV_CODEC_ID;
+
+/* AV features masks */
+#define BTIF_AV_FEAT_RCTG        BTA_AV_FEAT_RCTG      /* remote control target */
+#define BTIF_AV_FEAT_RCCT        BTA_AV_FEAT_RCCT      /* remote control controller */
+#define BTIF_AV_FEAT_METADATA    BTA_AV_FEAT_METADATA  /* remote control Metadata Transfer command/response */
+
+typedef UINT16 tBTIF_AV_FEAT;
+
+/* AV channel values */
+#define BTIF_AV_CHNL_MSK         BTA_AV_CHNL_MSK
+#define BTIF_AV_CHNL_AUDIO       BTA_AV_CHNL_AUDIO       /* audio channel */
+#define BTIF_AV_CHNL_VIDEO       BTA_AV_CHNL_VIDEO       /* video channel */
+typedef UINT8 tBTIF_AV_CHNL;
+
+typedef UINT8 tBTIF_AV_HNDL;
+
+/* Operation id list for BTIF_AvRemoteCmd */
+#define BTIF_AV_ID_SELECT      0x00    /* select */
+#define BTIF_AV_ID_UP          0x01    /* up */
+#define BTIF_AV_ID_DOWN        0x02    /* down */
+#define BTIF_AV_ID_LEFT        0x03    /* left */
+#define BTIF_AV_ID_RIGHT       0x04    /* right */
+#define BTIF_AV_ID_RIGHT_UP    0x05    /* right-up */
+#define BTIF_AV_ID_RIGHT_DOWN  0x06    /* right-down */
+#define BTIF_AV_ID_LEFT_UP     0x07    /* left-up */
+#define BTIF_AV_ID_LEFT_DOWN   0x08    /* left-down */
+#define BTIF_AV_ID_ROOT_MENU   0x09    /* root menu */
+#define BTIF_AV_ID_SETUP_MENU  0x0A    /* setup menu */
+#define BTIF_AV_ID_CONT_MENU   0x0B    /* contents menu */
+#define BTIF_AV_ID_FAV_MENU    0x0C    /* favorite menu */
+#define BTIF_AV_ID_EXIT        0x0D    /* exit */
+#define BTIF_AV_ID_0           0x20    /* 0 */
+#define BTIF_AV_ID_1           0x21    /* 1 */
+#define BTIF_AV_ID_2           0x22    /* 2 */
+#define BTIF_AV_ID_3           0x23    /* 3 */
+#define BTIF_AV_ID_4           0x24    /* 4 */
+#define BTIF_AV_ID_5           0x25    /* 5 */
+#define BTIF_AV_ID_6           0x26    /* 6 */
+#define BTIF_AV_ID_7           0x27    /* 7 */
+#define BTIF_AV_ID_8           0x28    /* 8 */
+#define BTIF_AV_ID_9           0x29    /* 9 */
+#define BTIF_AV_ID_DOT         0x2A    /* dot */
+#define BTIF_AV_ID_ENTER       0x2B    /* enter */
+#define BTIF_AV_ID_CLEAR       0x2C    /* clear */
+#define BTIF_AV_ID_CHAN_UP     0x30    /* channel up */
+#define BTIF_AV_ID_CHAN_DOWN   0x31    /* channel down */
+#define BTIF_AV_ID_PREV_CHAN   0x32    /* previous channel */
+#define BTIF_AV_ID_SOUND_SEL   0x33    /* sound select */
+#define BTIF_AV_ID_INPUT_SEL   0x34    /* input select */
+#define BTIF_AV_ID_DISP_INFO   0x35    /* display information */
+#define BTIF_AV_ID_HELP        0x36    /* help */
+#define BTIF_AV_ID_PAGE_UP     0x37    /* page up */
+#define BTIF_AV_ID_PAGE_DOWN   0x38    /* page down */
+#define BTIF_AV_ID_POWER       0x40    /* power */
+#define BTIF_AV_ID_VOL_UP      0x41    /* volume up */
+#define BTIF_AV_ID_VOL_DOWN    0x42    /* volume down */
+#define BTIF_AV_ID_MUTE        0x43    /* mute */
+#define BTIF_AV_ID_PLAY        0x44    /* play */
+#define BTIF_AV_ID_STOP        0x45    /* stop */
+#define BTIF_AV_ID_PAUSE       0x46    /* pause */
+#define BTIF_AV_ID_RECORD      0x47    /* record */
+#define BTIF_AV_ID_REWIND      0x48    /* rewind */
+#define BTIF_AV_ID_FAST_FOR    0x49    /* fast forward */
+#define BTIF_AV_ID_EJECT       0x4A    /* eject */
+#define BTIF_AV_ID_FORWARD     0x4B    /* forward */
+#define BTIF_AV_ID_BACKWARD    0x4C    /* backward */
+#define BTIF_AV_ID_ANGLE       0x50    /* angle */
+#define BTIF_AV_ID_SUBPICT     0x51    /* subpicture */
+#define BTIF_AV_ID_F1          0x71    /* F1 */
+#define BTIF_AV_ID_F2          0x72    /* F2 */
+#define BTIF_AV_ID_F3          0x73    /* F3 */
+#define BTIF_AV_ID_F4          0x74    /* F4 */
+#define BTIF_AV_ID_F5          0x75    /* F5 */
+#define BTIF_AV_ID_VENDOR      0x7E    /* vendor unique */
+#define BTIF_AV_KEYPRESSED_RELEASE 0x80
+
+typedef UINT8 tBTIF_AV_RC;
+
+/* State flag for pass through command */
+#define BTIF_AV_STATE_PRESS      0    /* key pressed */
+#define BTIF_AV_STATE_RELEASE    1  /* key released */
+
+typedef UINT8 tBTIF_AV_STATE;
+
+typedef UINT8 tBTIF_AV_RC_HNDL;
+
+/* Command codes for BTIF_AvVendorCmd */
+#define BTIF_AV_CMD_CTRL         0
+#define BTIF_AV_CMD_STATUS       1
+#define BTIF_AV_CMD_SPEC_INQ     2
+#define BTIF_AV_CMD_NOTIF        3
+#define BTIF_AV_CMD_GEN_INQ      4
+
+typedef UINT8 tBTIF_AV_CMD;
+
+/* AV callback events */
+#define BTIF_AV_OPEN_EVT         0       /* connection opened */
+#define BTIF_AV_CLOSE_EVT        1       /* connection closed */
+#define BTIF_AV_START_EVT        2       /* stream data transfer started */
+#define BTIF_AV_STOP_EVT         3       /* stream data transfer stopped */
+#define BTIF_AV_RC_OPEN_EVT      4       /* remote control channel open */
+#define BTIF_AV_RC_CLOSE_EVT     5       /* remote control channel closed */
+#define BTIF_AV_REMOTE_CMD_EVT   6      /* remote control command */
+#define BTIF_AV_REMOTE_RSP_EVT   7      /* remote control response */
+#define BTIF_AV_META_MSG_EVT     8      /* metadata messages */
+
+typedef UINT8 tBTIF_AV_EVT;
+
+#define BTIF_AV_FEEDING_ASYNCHRONOUS 0   /* asynchronous feeding, use tx av timer */
+#define BTIF_AV_FEEDING_SYNCHRONOUS  1   /* synchronous feeding, no av tx timer */
+
+#define BTIF_AV_MAX_SYNCHRONOUS_LATENCY 80 /* max latency in ms for BTIF_AV_FEEDING_SYNCHRONOUS */
+#define BTIF_AV_MIN_SYNCHRONOUS_LATENCY 4 /* min latency in ms for BTIF_AV_FEEDING_SYNCHRONOUS */
+
+typedef UINT8 tBTIF_AV_FEEDING_MODE;
+
+#define BTIF_AV_CHANNEL_MODE_MONO    A2D_SBC_IE_CH_MD_MONO
+#define BTIF_AV_CHANNEL_MODE_STEREO  A2D_SBC_IE_CH_MD_STEREO
+#define BTIF_AV_CHANNEL_MODE_JOINT   A2D_SBC_IE_CH_MD_JOINT
+#define BTIF_AV_CHANNEL_MODE_DUAL    A2D_SBC_IE_CH_MD_DUAL
+
+typedef UINT8 tBTIF_AV_CHANNEL_MODE;
+
+/**
+ * Structure used to configure the AV codec capabilities/config
+ */
+typedef struct
+{
+    tBTIF_AV_CODEC_ID id;            /* Codec ID (in terms of BTIF) */
+    UINT8 info[AVDT_CODEC_SIZE];     /* Codec info (can be config or capabilities) */
+} tBTIF_AV_CODEC_INFO;
+
+/**
+ * Structure used to configure the AV media feeding
+ */
+typedef struct
+{
+    UINT16 sampling_freq;   /* 44100, 48000 etc */
+    UINT16 num_channel;     /* 1 for mono or 2 stereo */
+    UINT8  bit_per_sample;  /* Number of bits per sample (8, 16) */
+} tBTIF_AV_MEDIA_FEED_CFG_PCM;
+
+typedef union
+{
+    tBTIF_AV_MEDIA_FEED_CFG_PCM pcm;     /* Raw PCM feeding format */
+}tBTIF_AV_MEDIA_FEED_CFG;
+
+typedef struct
+{
+    tBTIF_AV_CODEC_ID format;        /* Media codec identifier */
+    tBTIF_AV_MEDIA_FEED_CFG cfg;     /* Media codec configuration */
+} tBTIF_AV_MEDIA_FEEDINGS;
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* BTIF_AV_API_H */
diff --git a/rtkbt/code/bt/btif/include/btif_av_co.h b/rtkbt/code/bt/btif/include/btif_av_co.h
new file mode 100755
index 0000000..a6a5bfa
--- /dev/null
+++ b/rtkbt/code/bt/btif/include/btif_av_co.h
@@ -0,0 +1,174 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#ifndef BTIF_AV_CO_H
+#define BTIF_AV_CO_H
+
+#include "btif_media.h"
+
+/*******************************************************************************
+**  Constants & Macros
+********************************************************************************/
+
+enum
+{
+    BTIF_SV_AV_AA_SBC_INDEX = 0,
+    BTIF_SV_AV_AA_SBC_SINK_INDEX,
+    BTIF_SV_AV_AA_SEP_INDEX  /* Last index */
+};
+
+
+/*******************************************************************************
+**  Functions
+********************************************************************************/
+
+/*******************************************************************************
+ **
+ ** Function         bta_av_co_cp_is_active
+ **
+ ** Description      Get the current configuration of content protection
+ **
+ ** Returns          TRUE if the current streaming has CP, FALSE otherwise
+ **
+ *******************************************************************************/
+BOOLEAN bta_av_co_cp_is_active(void);
+
+/*******************************************************************************
+ **
+ ** Function         bta_av_co_cp_get_flag
+ **
+ ** Description      Get content protection flag
+ **                  BTA_AV_CP_SCMS_COPY_NEVER
+ **                  BTA_AV_CP_SCMS_COPY_ONCE
+ **                  BTA_AV_CP_SCMS_COPY_FREE
+ **
+ ** Returns          The current flag value
+ **
+ *******************************************************************************/
+UINT8 bta_av_co_cp_get_flag(void);
+
+/*******************************************************************************
+ **
+ ** Function         bta_av_co_cp_set_flag
+ **
+ ** Description      Set content protection flag
+ **                  BTA_AV_CP_SCMS_COPY_NEVER
+ **                  BTA_AV_CP_SCMS_COPY_ONCE
+ **                  BTA_AV_CP_SCMS_COPY_FREE
+ **
+ ** Returns          TRUE if setting the SCMS flag is supported else FALSE
+ **
+ *******************************************************************************/
+BOOLEAN bta_av_co_cp_set_flag(UINT8 cp_flag);
+
+/*******************************************************************************
+ **
+ ** Function         bta_av_co_audio_codec_reset
+ **
+ ** Description      Reset the current codec configuration
+ **
+ ** Returns          void
+ **
+ *******************************************************************************/
+void bta_av_co_audio_codec_reset(void);
+
+/*******************************************************************************
+ **
+ ** Function         bta_av_co_audio_codec_supported
+ **
+ ** Description      Check if all opened connections are compatible with a codec
+ **                  configuration
+ **
+ ** Returns          TRUE if all opened devices support this codec, FALSE otherwise
+ **
+ *******************************************************************************/
+BOOLEAN bta_av_co_audio_codec_supported(tBTIF_STATUS *p_status);
+
+/*******************************************************************************
+ **
+ ** Function         bta_av_co_audio_set_codec
+ **
+ ** Description      Set the current codec configuration from the feeding type.
+ **                  This function is starting to modify the configuration, it
+ **                  should be protected.
+ **
+ ** Returns          TRUE if successful, FALSE otherwise
+ **
+ *******************************************************************************/
+BOOLEAN bta_av_co_audio_set_codec(const tBTIF_AV_MEDIA_FEEDINGS *p_feeding, tBTIF_STATUS *p_status);
+
+/*******************************************************************************
+ **
+ ** Function         bta_av_co_audio_get_sbc_config
+ **
+ ** Description      Retrieves the SBC codec configuration.  If the codec in use
+ **                  is not SBC, return the default SBC codec configuration.
+ **
+ ** Returns          TRUE if codec is SBC, FALSE otherwise
+ **
+ *******************************************************************************/
+BOOLEAN bta_av_co_audio_get_sbc_config(tA2D_SBC_CIE *p_sbc_config, UINT16 *p_minmtu);
+
+/*******************************************************************************
+ **
+ ** Function         bta_av_co_audio_discard_config
+ **
+ ** Description      Discard the codec configuration of a connection
+ **
+ ** Returns          Nothing
+ **
+ *******************************************************************************/
+void bta_av_co_audio_discard_config(tBTA_AV_HNDL hndl);
+
+/*******************************************************************************
+ **
+ ** Function         bta_av_co_init
+ **
+ ** Description      Initialization
+ **
+ ** Returns          Nothing
+ **
+ *******************************************************************************/
+void bta_av_co_init(void);
+
+
+/*******************************************************************************
+ **
+ ** Function         bta_av_co_peer_cp_supported
+ **
+ ** Description      Checks if the peer supports CP
+ **
+ ** Returns          TRUE if the peer supports CP
+ **
+ *******************************************************************************/
+BOOLEAN bta_av_co_peer_cp_supported(tBTA_AV_HNDL hndl);
+
+/*******************************************************************************
+ **
+ ** Function         bta_av_co_get_remote_bitpool_pref
+ **
+ ** Description      Check if remote side did a setconfig within the limits
+ **                  of our exported bitpool range. If set we will set the
+ **                  remote preference.
+ **
+ ** Returns          TRUE if config set, FALSE otherwize
+ **
+ *******************************************************************************/
+BOOLEAN bta_av_co_get_remote_bitpool_pref(UINT8 *min, UINT8 *max);
+
+#endif
diff --git a/rtkbt/code/bt/btif/include/btif_avrcp_audio_track.h b/rtkbt/code/bt/btif/include/btif_avrcp_audio_track.h
new file mode 100755
index 0000000..ff3293c
--- /dev/null
+++ b/rtkbt/code/bt/btif/include/btif_avrcp_audio_track.h
@@ -0,0 +1,73 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#if defined (__cplusplus) || (cplusplus)
+extern "C" {
+#endif
+
+/**
+ * Implements an API to be used by A2DP to do streaming of music over a media
+ * stream. This API provides mechanism to create and control playback of the
+ * media stream depending on the data bits coming from the remote device. The
+ * media stream is played over the default audio media stream type and hence
+ * volume control is handled entirely by the Audio Manager (which is also the
+ * original motivation for this solution.
+ *
+ * TODO: Once the AudioManager provides support for patching audio sources with
+ * volume control we should deprecate this file.
+ */
+
+/**
+ * Creates an audio track object and returns a void handle. Use this handle to the
+ * following functions.
+ *
+ * The ownership of the handle is maintained by the caller of this API and it should eventually be
+ * deleted using BtifAvrcpAudioTrackDelete (see below).
+ */
+void* BtifAvrcpAudioTrackCreate(int trackFreq, int channelType);
+
+/**
+ * Starts the audio track.
+ */
+void BtifAvrcpAudioTrackStart(void *handle);
+
+/**
+ * Pauses the audio track.
+ */
+void BtifAvrcpAudioTrackPause(void *handle);
+
+/**
+ * Sets audio track gain.
+ */
+void BtifAvrcpSetAudioTrackGain(void *handle, float gain);
+
+/**
+ * Stop / Delete the audio track.
+ * Delete should usually be called stop.
+ */
+void BtifAvrcpAudioTrackStop(void *handle);
+void BtifAvrcpAudioTrackDelete(void *handle);
+
+/**
+ * Writes the audio track data to file.
+ *
+ * Used only for debugging.
+ */
+int BtifAvrcpAudioTrackWriteData(void *handle, void *audioBuffer, int bufferlen);
+
+#if defined (__cplusplus) || (cplusplus)
+}
+#endif
diff --git a/rtkbt/code/bt/btif/include/btif_common.h b/rtkbt/code/bt/btif/include/btif_common.h
new file mode 100755
index 0000000..b48631b
--- /dev/null
+++ b/rtkbt/code/bt/btif/include/btif_common.h
@@ -0,0 +1,219 @@
+/******************************************************************************
+ *
+ *  Copyright (c) 2014 The Android Open Source Project
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#ifndef BTIF_COMMON_H
+#define BTIF_COMMON_H
+
+#include <stdlib.h>
+
+#include <hardware/bluetooth.h>
+
+#include "osi/include/osi.h"
+#include "osi/include/log.h"
+#include "bt_types.h"
+#include "bta_api.h"
+
+/*******************************************************************************
+**  Constants & Macros
+********************************************************************************/
+
+#define ASSERTC(cond, msg, val) if (!(cond)) { LOG_ERROR(LOG_TAG, \
+    "### ASSERT : %s line %d %s (%d) ###", __FILE__, __LINE__, msg, val);}
+
+/* Calculate start of event enumeration; id is top 8 bits of event */
+#define BTIF_SIG_START(id)       ((id) << 8)
+
+/* For upstream the MSB bit is always SET */
+#define BTIF_SIG_CB_BIT   (0x8000)
+#define BTIF_SIG_CB_START(id)    (((id) << 8) | BTIF_SIG_CB_BIT)
+
+/*
+ * A memcpy(3) wrapper when copying memory that might not be aligned.
+ *
+ * On certain architectures, if the memcpy(3) arguments appear to be
+ * pointing to aligned memory (e.g., struct pointers), the compiler might
+ * generate optimized memcpy(3) code. However, if the original memory was not
+ * aligned (e.g., because of incorrect "char *" to struct pointer casting),
+ * the result code might trigger SIGBUS crash.
+ *
+ * As a short-term solution, we use the help of the maybe_non_aligned_memcpy()
+ * macro to identify and fix such cases. In the future, we should fix the
+ * problematic "char *" to struct pointer casting, and this macro itself should
+ * be removed.
+ */
+#define maybe_non_aligned_memcpy(_a, _b, _c) memcpy((void *)(_a), (_b), (_c))
+
+/* BTIF sub-systems */
+#define BTIF_CORE           0
+#define BTIF_DM             1
+#define BTIF_HFP            2
+#define BTIF_AV             3
+#define BTIF_PAN            4
+#define BTIF_HF_CLIENT      5
+
+extern bt_callbacks_t *bt_hal_cbacks;
+
+#define HAL_CBACK(P_CB, P_CBACK, ...)\
+    if (P_CB && P_CB->P_CBACK) {            \
+        BTIF_TRACE_API("HAL %s->%s", #P_CB, #P_CBACK); \
+        P_CB->P_CBACK(__VA_ARGS__);         \
+    }                                       \
+    else {                                  \
+        ASSERTC(0, "Callback is NULL", 0);  \
+    }
+
+/**
+ * BTIF events for requests that require context switch to btif task
+ * on downstreams path
+ */
+enum
+{
+    BTIF_CORE_API_START = BTIF_SIG_START(BTIF_CORE),
+    BTIF_CORE_STORAGE_NO_ACTION,
+    BTIF_CORE_STORAGE_ADAPTER_WRITE,
+    BTIF_CORE_STORAGE_ADAPTER_READ,
+    BTIF_CORE_STORAGE_ADAPTER_READ_ALL,
+    BTIF_CORE_STORAGE_REMOTE_WRITE,
+    BTIF_CORE_STORAGE_REMOTE_READ,
+    BTIF_CORE_STORAGE_REMOTE_READ_ALL,
+    BTIF_CORE_STORAGE_READ_ALL,
+    BTIF_CORE_STORAGE_NOTIFY_STATUS,
+    /* add here */
+
+    BTIF_DM_API_START = BTIF_SIG_START(BTIF_DM),
+    BTIF_DM_ENABLE_SERVICE,
+    BTIF_DM_DISABLE_SERVICE,
+    /* add here */
+
+    BTIF_HFP_API_START = BTIF_SIG_START(BTIF_HFP),
+    /* add here */
+
+    BTIF_AV_API_START = BTIF_SIG_START(BTIF_AV),
+    /* add here */
+};
+
+/**
+ * BTIF events for callbacks that require context switch to btif task
+ * on upstream path - Typically these would be non-BTA events
+ * that are generated by the BTIF layer.
+ */
+enum
+{
+    BTIF_CORE_CB_START = BTIF_SIG_CB_START(BTIF_CORE),
+    /* add here */
+
+    BTIF_DM_CB_START = BTIF_SIG_CB_START(BTIF_DM),
+    BTIF_DM_CB_DISCOVERY_STARTED, /* Discovery has started */
+    BTIF_DM_CB_CREATE_BOND,   /* Create bond */
+    BTIF_DM_CB_REMOVE_BOND,   /*Remove bond */
+    BTIF_DM_CB_HID_REMOTE_NAME,   /* Remote name callback for HID device */
+    BTIF_DM_CB_BOND_STATE_BONDING,
+    BTIF_DM_CB_LE_TX_TEST,    /* BLE Tx Test command complete callback */
+    BTIF_DM_CB_LE_RX_TEST,    /* BLE Rx Test command complete callback */
+    BTIF_DM_CB_LE_TEST_END,   /* BLE Test mode end callback */
+
+    BTIF_HFP_CB_START  = BTIF_SIG_CB_START(BTIF_HFP),
+    BTIF_HFP_CB_AUDIO_CONNECTING, /* HF AUDIO connect has been sent to BTA successfully */
+
+    BTIF_PAN_CB_START = BTIF_SIG_CB_START(BTIF_PAN),
+    BTIF_PAN_CB_DISCONNECTING, /* PAN Disconnect has been sent to BTA successfully */
+
+    BTIF_HF_CLIENT_CLIENT_CB_START  = BTIF_SIG_CB_START(BTIF_HF_CLIENT),
+    BTIF_HF_CLIENT_CB_AUDIO_CONNECTING, /* AUDIO connect has been sent to BTA successfully */
+};
+
+/* Macro definitions for BD ADDR persistence */
+
+/**
+ * PROPERTY_BT_BDADDR_PATH
+ * The property key stores the storage location of Bluetooth Device Address
+ */
+#ifndef PROPERTY_BT_BDADDR_PATH
+#define PROPERTY_BT_BDADDR_PATH         "ro.bt.bdaddr_path"
+#endif
+
+/**
+ * PERSIST_BDADDR_PROPERTY
+ * If there is no valid bdaddr available from PROPERTY_BT_BDADDR_PATH,
+ * generating a random BDADDR and keeping it in the PERSIST_BDADDR_DROP.
+ */
+#ifndef PERSIST_BDADDR_PROPERTY
+#define PERSIST_BDADDR_PROPERTY         "persist.service.bdroid.bdaddr"
+#endif
+
+/**
+ * FACTORY_BT_BDADDR_PROPERTY
+ * If there is no valid bdaddr available from PROPERTY_BT_BDADDR_PATH
+ * and there is no available persistent bdaddr available from
+ * PERSIST_BDADDR_PROPERTY use a factory set address
+ */
+#ifndef FACTORY_BT_ADDR_PROPERTY
+#define FACTORY_BT_ADDR_PROPERTY        "ro.boot.btmacaddr"
+#endif
+
+#define FACTORY_BT_BDADDR_STORAGE_LEN   17
+
+
+/*******************************************************************************
+**  Type definitions for callback functions
+********************************************************************************/
+
+typedef void (tBTIF_CBACK) (UINT16 event, char *p_param);
+typedef void (tBTIF_COPY_CBACK) (UINT16 event, char *p_dest, char *p_src);
+
+
+/*******************************************************************************
+**  Type definitions and return values
+********************************************************************************/
+
+/* this type handles all btif context switches between BTU and HAL */
+typedef struct
+{
+    BT_HDR               hdr;
+    tBTIF_CBACK*         p_cb;    /* context switch callback */
+
+    /* parameters passed to callback */
+    UINT16               event;   /* message event id */
+    char __attribute__ ((aligned)) p_param[]; /* parameter area needs to be last */
+} tBTIF_CONTEXT_SWITCH_CBACK;
+
+
+/*******************************************************************************
+**  Functions
+********************************************************************************/
+
+bt_status_t btif_transfer_context (tBTIF_CBACK *p_cback, UINT16 event, char* p_params,
+                                    int param_len, tBTIF_COPY_CBACK *p_copy_cback);
+tBTA_SERVICE_MASK btif_get_enabled_services_mask(void);
+bt_status_t btif_enable_service(tBTA_SERVICE_ID service_id);
+bt_status_t btif_disable_service(tBTA_SERVICE_ID service_id);
+int btif_is_enabled(void);
+
+/**
+ * BTIF_Events
+ */
+void btif_enable_bluetooth_evt(tBTA_STATUS status);
+void btif_disable_bluetooth_evt(void);
+void btif_adapter_properties_evt(bt_status_t status, uint32_t num_props, bt_property_t *p_props);
+void btif_remote_properties_evt(bt_status_t status, bt_bdaddr_t *remote_addr,
+                                   uint32_t num_props, bt_property_t *p_props);
+
+void btif_init_ok(UNUSED_ATTR uint16_t event, UNUSED_ATTR char *p_param);
+
+#endif /* BTIF_COMMON_H */
diff --git a/rtkbt/code/bt/btif/include/btif_config.h b/rtkbt/code/bt/btif/include/btif_config.h
new file mode 100755
index 0000000..495e938
--- /dev/null
+++ b/rtkbt/code/bt/btif/include/btif_config.h
@@ -0,0 +1,55 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+#include <stdbool.h>
+#include <stddef.h>
+
+#include "bt_types.h"
+
+static const char BTIF_CONFIG_MODULE[] = "btif_config_module";
+
+typedef struct btif_config_section_iter_t btif_config_section_iter_t;
+
+bool btif_config_has_section(const char *section);
+bool btif_config_exist(const char *section, const char *key);
+bool btif_config_get_int(const char *section, const char *key, int *value);
+bool btif_config_set_int(const char *section, const char *key, int value);
+bool btif_config_get_str(const char *section, const char *key, char *value, int *size_bytes);
+bool btif_config_set_str(const char *section, const char *key, const char *value);
+bool btif_config_get_bin(const char *section, const char *key, uint8_t *value, size_t *length);
+bool btif_config_set_bin(const char *section, const char *key, const uint8_t *value, size_t length);
+bool btif_config_remove(const char *section, const char *key);
+
+size_t btif_config_get_bin_length(const char *section, const char *key);
+
+const btif_config_section_iter_t *btif_config_section_begin(void);
+const btif_config_section_iter_t *btif_config_section_end(void);
+const btif_config_section_iter_t *btif_config_section_next(const btif_config_section_iter_t *section);
+const char *btif_config_section_name(const btif_config_section_iter_t *section);
+
+void btif_config_save(void);
+void btif_config_flush(void);
+bool btif_config_clear(void);
+
+// TODO(zachoverflow): Eww...we need to move these out. These are peer specific, not config general.
+bool btif_get_address_type(const BD_ADDR bd_addr, int *p_addr_type);
+bool btif_get_device_type(const BD_ADDR bd_addr, int *p_device_type);
+
+void btif_debug_config_dump(int fd);
diff --git a/rtkbt/code/bt/btif/include/btif_config_transcode.h b/rtkbt/code/bt/btif/include/btif_config_transcode.h
new file mode 100755
index 0000000..e020ba6
--- /dev/null
+++ b/rtkbt/code/bt/btif/include/btif_config_transcode.h
@@ -0,0 +1,23 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+typedef struct config_t config_t;
+
+config_t *btif_config_transcode(const char *xml_filename);
diff --git a/rtkbt/code/bt/btif/include/btif_debug.h b/rtkbt/code/bt/btif/include/btif_debug.h
new file mode 100755
index 0000000..f6a3cc7
--- /dev/null
+++ b/rtkbt/code/bt/btif/include/btif_debug.h
@@ -0,0 +1,30 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2015 Google Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+#include <stdint.h>
+
+// Debug API
+
+void btif_debug_init(void);
+
+// Debug helpers
+
+// Timestamp in us
+uint64_t btif_debug_ts(void);
diff --git a/rtkbt/code/bt/btif/include/btif_debug_btsnoop.h b/rtkbt/code/bt/btif/include/btif_debug_btsnoop.h
new file mode 100755
index 0000000..e82421a
--- /dev/null
+++ b/rtkbt/code/bt/btif/include/btif_debug_btsnoop.h
@@ -0,0 +1,44 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2015 Google Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+#include <stdint.h>
+
+#define BTSNOOZ_CURRENT_VERSION 0x02
+
+// The preamble is stored un-encrypted as the first part
+// of the file.
+typedef struct btsnooz_preamble_t {
+  uint8_t version;
+  uint64_t last_timestamp_ms;
+} __attribute__((__packed__)) btsnooz_preamble_t;
+
+// One header for each HCI packet
+typedef struct btsnooz_header_t {
+  uint16_t length;
+  uint16_t packet_length;
+  uint32_t delta_time_ms;
+  uint8_t type;
+} __attribute__((__packed__)) btsnooz_header_t;
+
+// Initializes btsnoop memory logging and registers
+void btif_debug_btsnoop_init(void);
+
+// Writes btsnoop data base64 encoded to fd
+void btif_debug_btsnoop_dump(int fd);
diff --git a/rtkbt/code/bt/btif/include/btif_debug_conn.h b/rtkbt/code/bt/btif/include/btif_debug_conn.h
new file mode 100755
index 0000000..bf1bd6a
--- /dev/null
+++ b/rtkbt/code/bt/btif/include/btif_debug_conn.h
@@ -0,0 +1,34 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2015 Google Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+#include <hardware/bluetooth.h>
+
+#include "gatt_api.h"
+
+typedef enum {
+  BTIF_DEBUG_CONNECTED = 1,
+  BTIF_DEBUG_DISCONNECTED
+} btif_debug_conn_state_t;
+
+// Report a connection state change
+void btif_debug_conn_state(const bt_bdaddr_t bda, const btif_debug_conn_state_t state,
+    const tGATT_DISCONN_REASON disconnect_reason);
+
+void btif_debug_conn_dump(int fd);
diff --git a/rtkbt/code/bt/btif/include/btif_dm.h b/rtkbt/code/bt/btif/include/btif_dm.h
new file mode 100755
index 0000000..474ef71
--- /dev/null
+++ b/rtkbt/code/bt/btif/include/btif_dm.h
@@ -0,0 +1,114 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#ifndef BTIF_DM_H
+#define BTIF_DM_H
+
+#include "bta_api.h"
+#include "btif_uid.h"
+#include "bte_appl.h"
+
+/************************************************************************************
+**  Functions
+********************************************************************************/
+
+void btif_dm_init(uid_set_t* set);
+void btif_dm_cleanup(void);
+
+/**
+ * BTIF callback to switch context from bte to btif
+ */
+void bte_dm_evt(tBTA_DM_SEC_EVT event, tBTA_DM_SEC *p_data);
+
+/**
+ * Notify BT disable being initiated. DM may chose to abort
+ * pending commands, like pairing
+ */
+void btif_dm_on_disable(void);
+
+/**
+ * Callout for handling io_capabilities request
+ */
+void btif_dm_proc_io_req(BD_ADDR bd_addr, tBTA_IO_CAP *p_io_cap, tBTA_OOB_DATA *p_oob_data,
+                      tBTA_AUTH_REQ *p_auth_req, BOOLEAN is_orig);
+/**
+ * Callout for handling io_capabilities response
+ */
+void btif_dm_proc_io_rsp(BD_ADDR bd_addr, tBTA_IO_CAP io_cap,
+                      tBTA_OOB_DATA oob_data, tBTA_AUTH_REQ auth_req);
+
+/**
+ * Out-of-band functions
+ */
+void btif_dm_set_oob_for_io_req(tBTA_OOB_DATA  *p_oob_data);
+void btif_dm_set_oob_for_le_io_req(BD_ADDR bd_addr, tBTA_OOB_DATA  *p_oob_data,
+                                   tBTA_LE_AUTH_REQ *p_auth_req);
+#ifdef BTIF_DM_OOB_TEST
+void btif_dm_load_local_oob(void);
+void btif_dm_proc_loc_oob(BOOLEAN valid, BT_OCTET16 c, BT_OCTET16 r);
+BOOLEAN btif_dm_proc_rmt_oob(BD_ADDR bd_addr,  BT_OCTET16 p_c, BT_OCTET16 p_r);
+#endif /* BTIF_DM_OOB_TEST */
+#if (BLE_INCLUDED == TRUE)
+
+/*callout for reading SMP properties from Text file*/
+BOOLEAN btif_dm_get_smp_config(tBTE_APPL_CFG* p_cfg);
+
+typedef struct
+{
+    BOOLEAN                   is_penc_key_rcvd;
+    tBTM_LE_PENC_KEYS         penc_key;       /* received peer encryption key */
+    BOOLEAN                   is_pcsrk_key_rcvd;
+    tBTM_LE_PCSRK_KEYS        pcsrk_key;       /* received peer device SRK */
+    BOOLEAN                   is_pid_key_rcvd;
+    tBTM_LE_PID_KEYS          pid_key;        /* peer device ID key */
+    BOOLEAN                   is_lenc_key_rcvd;
+    tBTM_LE_LENC_KEYS         lenc_key;       /* local encryption reproduction keys LTK = = d1(ER,DIV,0)*/
+    BOOLEAN                   is_lcsrk_key_rcvd;
+    tBTM_LE_LCSRK_KEYS        lcsrk_key;      /* local device CSRK = d1(ER,DIV,1)*/
+    BOOLEAN                   is_lidk_key_rcvd;   /* local identity key received */
+} btif_dm_ble_cb_t;
+
+#define BTIF_DM_LE_KEY_PENC        BTA_LE_KEY_PENC
+#define BTIF_DM_LE_KEY_PID         BTA_LE_KEY_PID
+#define BTIF_DM_LE_KEY_PCSRK       BTA_LE_KEY_PCSRK
+#define BTIF_DM_LE_KEY_LENC        BTA_LE_KEY_LENC
+#define BTIF_DM_LE_KEY_LID         BTA_LE_KEY_LID
+#define BTIF_DM_LE_KEY_LCSRK       BTA_LE_KEY_LCSRK
+
+#define BTIF_DM_LE_LOCAL_KEY_IR       (1<<0)
+#define BTIF_DM_LE_LOCAL_KEY_IRK      (1<<1)
+#define BTIF_DM_LE_LOCAL_KEY_DHK      (1<<2)
+#define BTIF_DM_LE_LOCAL_KEY_ER       (1<<3)
+
+#ifdef BLUETOOTH_RTK
+#define EXTERN_DEFINED_NAME_LEN 240
+#endif
+
+void btif_dm_load_ble_local_keys(void);
+void btif_dm_get_ble_local_keys(tBTA_DM_BLE_LOCAL_KEY_MASK *p_key_mask, BT_OCTET16 er,
+                                   tBTA_BLE_LOCAL_ID_KEYS *p_id_keys);
+void btif_dm_save_ble_bonding_keys(void);
+void btif_dm_remove_ble_bonding_keys(void);
+void btif_dm_ble_sec_req_evt(tBTA_DM_BLE_SEC_REQ *p_ble_req);
+
+void btif_dm_update_ble_remote_properties( BD_ADDR bd_addr, BD_NAME bd_name,
+                                           tBT_DEVICE_TYPE dev_type);
+
+#endif /* BLE_INCLUDED */
+
+#endif
diff --git a/rtkbt/code/bt/btif/include/btif_gatt.h b/rtkbt/code/bt/btif/include/btif_gatt.h
new file mode 100755
index 0000000..e71ba1e
--- /dev/null
+++ b/rtkbt/code/bt/btif/include/btif_gatt.h
@@ -0,0 +1,34 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2013 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+
+/*****************************************************************************
+**
+**  Name:          btif_gatt.h
+**
+**  Description:
+**
+******************************************************************************/
+
+#ifndef BTIF_GATT_H
+#define BTIF_GATT_H
+
+
+
+#endif
+
diff --git a/rtkbt/code/bt/btif/include/btif_gatt_multi_adv_util.h b/rtkbt/code/bt/btif/include/btif_gatt_multi_adv_util.h
new file mode 100755
index 0000000..ac8351c
--- /dev/null
+++ b/rtkbt/code/bt/btif/include/btif_gatt_multi_adv_util.h
@@ -0,0 +1,92 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014  Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+#include <hardware/bluetooth.h>
+
+#include "bta_api.h"
+
+#define CLNT_IF_IDX 0
+#define INST_ID_IDX 1
+#define INST_ID_IDX_MAX (INST_ID_IDX + 1)
+#define INVALID_ADV_INST -1
+#define STD_ADV_INSTID 0
+
+/* Default ADV flags for general and limited discoverability */
+#define ADV_FLAGS_LIMITED BTA_DM_LIMITED_DISC
+#define ADV_FLAGS_GENERAL BTA_DM_GENERAL_DISC
+
+typedef struct
+{
+    int client_if;
+    BOOLEAN set_scan_rsp;
+    BOOLEAN include_name;
+    BOOLEAN include_txpower;
+    int min_interval;
+    int max_interval;
+    int appearance;
+    uint16_t manufacturer_len;
+    uint8_t* p_manufacturer_data;
+    uint16_t service_data_len;
+    uint8_t* p_service_data;
+    uint16_t service_uuid_len;
+    uint8_t* p_service_uuid;
+} btif_adv_data_t;
+
+
+typedef struct
+{
+    UINT8 client_if;
+    tBTA_BLE_AD_MASK mask;
+    tBTA_BLE_ADV_DATA data;
+    tBTA_BLE_ADV_PARAMS param;
+    alarm_t *multi_adv_timer;
+    int timeout_s;
+} btgatt_multi_adv_inst_cb;
+
+typedef struct
+{
+    INT8 *clntif_map;
+    // Includes the stored data for standard LE instance
+    btgatt_multi_adv_inst_cb *inst_cb;
+
+} btgatt_multi_adv_common_data;
+
+extern btgatt_multi_adv_common_data *btif_obtain_multi_adv_data_cb();
+
+extern void btif_gattc_incr_app_count(void);
+extern void btif_gattc_decr_app_count(void);
+extern int btif_multi_adv_add_instid_map(int client_if, int inst_id,
+        BOOLEAN gen_temp_instid);
+extern int btif_multi_adv_instid_for_clientif(int client_if);
+extern int btif_gattc_obtain_idx_for_datacb(int value, int clnt_inst_index);
+extern void btif_gattc_clear_clientif(int client_if, BOOLEAN stop_timer);
+extern void btif_gattc_cleanup_inst_cb(int inst_id, BOOLEAN stop_timer);
+extern void btif_gattc_cleanup_multi_inst_cb(btgatt_multi_adv_inst_cb *p_inst_cb,
+                                                    BOOLEAN stop_timer);
+extern BOOLEAN btif_gattc_copy_datacb(int arrindex, const btif_adv_data_t *p_adv_data,
+                                            BOOLEAN bInstData);
+extern void btif_gattc_adv_data_packager(int client_if, bool set_scan_rsp,
+                bool include_name, bool include_txpower, int min_interval, int max_interval,
+                int appearance, int manufacturer_len, char* manufacturer_data,
+                int service_data_len, char* service_data, int service_uuid_len,
+                char* service_uuid, btif_adv_data_t *p_multi_adv_inst);
+extern void btif_gattc_adv_data_cleanup(btif_adv_data_t* adv);
+void btif_multi_adv_timer_ctrl(int client_if, alarm_callback_t cb);
+
diff --git a/rtkbt/code/bt/btif/include/btif_gatt_util.h b/rtkbt/code/bt/btif/include/btif_gatt_util.h
new file mode 100755
index 0000000..715e0c5
--- /dev/null
+++ b/rtkbt/code/bt/btif/include/btif_gatt_util.h
@@ -0,0 +1,41 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2013 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#ifndef BTIF_GATT_UTIL_H
+#define BTIF_GATT_UTIL_H
+
+#include <hardware/bluetooth.h>
+#include <hardware/bt_gatt.h>
+
+#include "bta/include/bta_gatt_api.h"
+
+void btif_to_bta_uuid(tBT_UUID *p_dest, bt_uuid_t *p_src);
+void btif_to_bta_response(tBTA_GATTS_RSP *p_dest, btgatt_response_t* p_src);
+void btif_to_bta_uuid_mask(tBTA_DM_BLE_PF_COND_MASK *p_mask, bt_uuid_t *p_src);
+
+void bta_to_btif_uuid(bt_uuid_t *p_dest, tBT_UUID *p_src);
+
+uint16_t set_read_value(btgatt_read_params_t *p_dest, tBTA_GATTC_READ *p_src);
+uint16_t get_uuid16(tBT_UUID *p_uuid);
+
+void btif_gatt_check_encrypted_link(BD_ADDR bd_addr, tBTA_GATT_TRANSPORT transport);
+extern void btif_gatt_move_track_adv_data(btgatt_track_adv_info_t *p_dest,
+                                btgatt_track_adv_info_t *p_src);
+
+#endif
+
diff --git a/rtkbt/code/bt/btif/include/btif_hh.h b/rtkbt/code/bt/btif/include/btif_hh.h
new file mode 100755
index 0000000..36d1576
--- /dev/null
+++ b/rtkbt/code/bt/btif/include/btif_hh.h
@@ -0,0 +1,115 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#ifndef BTIF_HH_H
+#define BTIF_HH_H
+
+#include <hardware/bluetooth.h>
+#include <hardware/bt_hh.h>
+#include <pthread.h>
+#include <stdint.h>
+#include "bta_hh_api.h"
+#include "btu.h"
+#ifdef BLUETOOTH_RTK_API
+#include "rtkbt_api.h"
+#endif
+
+
+/*******************************************************************************
+**  Constants & Macros
+********************************************************************************/
+
+#define BTIF_HH_MAX_HID         8
+#define BTIF_HH_MAX_ADDED_DEV   32
+
+#define BTIF_HH_MAX_KEYSTATES            3
+#define BTIF_HH_KEYSTATE_MASK_NUMLOCK    0x01
+#define BTIF_HH_KEYSTATE_MASK_CAPSLOCK   0x02
+#define BTIF_HH_KEYSTATE_MASK_SCROLLLOCK 0x04
+
+
+/*******************************************************************************
+**  Type definitions and return values
+********************************************************************************/
+
+typedef enum
+{
+    BTIF_HH_DISABLED =   0,
+    BTIF_HH_ENABLED,
+    BTIF_HH_DISABLING,
+    BTIF_HH_DEV_UNKNOWN,
+    BTIF_HH_DEV_CONNECTING,
+    BTIF_HH_DEV_CONNECTED,
+    BTIF_HH_DEV_DISCONNECTED
+} BTIF_HH_STATUS;
+
+typedef struct
+{
+    bthh_connection_state_t       dev_status;
+    UINT8                         dev_handle;
+    bt_bdaddr_t                   bd_addr;
+    tBTA_HH_ATTR_MASK             attr_mask;
+    UINT8                         sub_class;
+    UINT8                         app_id;
+    int                           fd;
+    BOOLEAN                       ready_for_data;
+    pthread_t                     hh_poll_thread_id;
+    UINT8                         hh_keep_polling;
+    alarm_t                       *vup_timer;
+    BOOLEAN                       local_vup; // Indicated locally initiated VUP
+} btif_hh_device_t;
+
+/* Control block to maintain properties of devices */
+typedef struct
+{
+    UINT8             dev_handle;
+    bt_bdaddr_t       bd_addr;
+    tBTA_HH_ATTR_MASK attr_mask;
+} btif_hh_added_device_t;
+
+/**
+ * BTIF-HH control block to maintain added devices and currently
+ * connected hid devices
+ */
+typedef struct
+{
+    BTIF_HH_STATUS          status;
+    btif_hh_device_t        devices[BTIF_HH_MAX_HID];
+    UINT32                  device_num;
+    btif_hh_added_device_t  added_devices[BTIF_HH_MAX_ADDED_DEV];
+    btif_hh_device_t        *p_curr_dev;
+} btif_hh_cb_t;
+
+
+/*******************************************************************************
+**  Functions
+********************************************************************************/
+
+extern btif_hh_cb_t btif_hh_cb;
+
+extern btif_hh_device_t *btif_hh_find_connected_dev_by_handle(UINT8 handle);
+extern void btif_hh_remove_device(bt_bdaddr_t bd_addr);
+BOOLEAN btif_hh_add_added_dev(bt_bdaddr_t bda, tBTA_HH_ATTR_MASK attr_mask);
+extern bt_status_t btif_hh_virtual_unplug(bt_bdaddr_t *bd_addr);
+extern void btif_hh_disconnect(bt_bdaddr_t *bd_addr);
+extern void btif_hh_setreport(btif_hh_device_t *p_dev, bthh_report_type_t r_type,
+                    UINT16 size, UINT8* report);
+
+BOOLEAN btif_hh_add_added_dev(bt_bdaddr_t bd_addr, tBTA_HH_ATTR_MASK attr_mask);
+
+#endif
diff --git a/rtkbt/code/bt/btif/include/btif_hl.h b/rtkbt/code/bt/btif/include/btif_hl.h
new file mode 100755
index 0000000..f8bac11
--- /dev/null
+++ b/rtkbt/code/bt/btif/include/btif_hl.h
@@ -0,0 +1,330 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#ifndef BTIF_HL_H
+#define BTIF_HL_H
+
+#include <hardware/bluetooth.h>
+
+#include "bta_hl_api.h"
+#include "bt_common.h"
+#include "osi/include/alarm.h"
+
+/*******************************************************************************
+**  Constants & Macros
+********************************************************************************/
+
+#define BTIF_HL_DATA_TYPE_NONE               0x0000
+#define BTIF_HL_DATA_TYPE_PULSE_OXIMETER     0x1004   /* from BT assigned number */
+#define BTIF_HL_DATA_TYPE_BLOOD_PRESSURE_MON 0x1007
+#define BTIF_HL_DATA_TYPE_BODY_THERMOMETER   0x1008
+#define BTIF_HL_DATA_TYPE_BODY_WEIGHT_SCALE  0x100F
+#define BTIF_HL_DATA_TYPE_GLUCOSE_METER      0x1011
+#define BTIF_HL_DATA_TYPE_STEP_COUNTER       0x1068
+#define BTIF_HL_DATA_TYPE_BCA                0x1014
+#define BTIF_HL_DATA_TYPE_PEAK_FLOW          0x1015
+#define BTIF_HL_DATA_TYPE_CARDIO             0x1029
+#define BTIF_HL_DATA_TYPE_ACTIVITY_HUB       0x1047
+#define BTIF_HL_DATA_TYPE_AMM                0x1048
+
+#define BTIF_HL_CCH_NUM_FILTER_ELEMS            3
+#define BTIF_HL_APPLICATION_NAME_LEN          512
+
+/*******************************************************************************
+**  Type definitions and return values
+********************************************************************************/
+
+typedef enum
+{
+    BTIF_HL_SOC_STATE_IDLE,
+    BTIF_HL_SOC_STATE_W4_ADD,
+    BTIF_HL_SOC_STATE_W4_CONN,
+    BTIF_HL_SOC_STATE_W4_READ,
+    BTIF_HL_SOC_STATE_W4_REL
+} btif_hl_soc_state_t;
+
+typedef enum
+{
+    BTIF_HL_STATE_DISABLED,
+    BTIF_HL_STATE_DISABLING,
+    BTIF_HL_STATE_ENABLED,
+    BTIF_HL_STATE_ENABLING,
+} btif_hl_state_t;
+
+typedef enum
+{
+    BTIF_HL_CCH_OP_NONE,
+    BTIF_HL_CCH_OP_MDEP_FILTERING,
+    BTIF_HL_CCH_OP_MATCHED_CTRL_PSM,
+    BTIF_HL_CCH_OP_DCH_OPEN,
+    BTIF_HL_CCH_OP_DCH_RECONNECT,
+    BTIF_HL_CCH_OP_DCH_ECHO_TEST
+} btif_hl_cch_op_t;
+
+typedef enum
+{
+    BTIF_HL_PEND_DCH_OP_NONE,
+    BTIF_HL_PEND_DCH_OP_DELETE_MDL,
+    BTIF_HL_PEND_DCH_OP_OPEN,
+    BTIF_HL_PEND_DCH_OP_RECONNECT
+} btif_hl_pend_dch_op_t;
+
+typedef enum
+{
+    BTIF_HL_DCH_OP_NONE,
+    BTIF_HL_DCH_OP_DISC
+} btif_hl_dch_op_t;
+
+typedef enum
+{
+    BTIF_HL_CHAN_CB_STATE_NONE,
+    BTIF_HL_CHAN_CB_STATE_CONNECTING_PENDING,
+    BTIF_HL_CHAN_CB_STATE_CONNECTED_PENDING,
+
+    BTIF_HL_CHAN_CB_STATE_DISCONNECTING_PENDING,
+    BTIF_HL_CHAN_CB_STATE_DISCONNECTED_PENDING,
+    BTIF_HL_CHAN_CB_STATE_DESTROYED_PENDING,
+} btif_hl_chan_cb_state_t;
+
+enum
+{
+    BTIF_HL_SEND_CONNECTED_CB,
+    BTIF_HL_SEND_DISCONNECTED_CB,
+    BTIF_HL_REG_APP,
+    BTIF_HL_UNREG_APP,
+    BTIF_HL_UPDATE_MDL,
+};
+
+typedef struct
+{
+    UINT8 mdep_cfg_idx;
+    int data_type;
+    tBTA_HL_MDEP_ID peer_mdep_id;
+} btif_hl_extra_mdl_cfg_t;
+
+typedef struct
+{
+    tBTA_HL_MDL_CFG         base;
+    btif_hl_extra_mdl_cfg_t extra;
+} btif_hl_mdl_cfg_t;
+
+typedef struct
+{
+    BOOLEAN active;
+    UINT8 app_idx;
+} btif_hl_app_data_t;
+
+typedef struct
+{
+    int                     channel_id;
+    BD_ADDR                 bd_addr;
+    UINT8                   mdep_cfg_idx;
+    int                     max_s;
+    int                     socket_id[2];
+    UINT8                   app_idx;
+    UINT8                   mcl_idx;
+    UINT8                   mdl_idx;
+    btif_hl_soc_state_t     state;
+}btif_hl_soc_cb_t;
+
+typedef struct
+{
+    UINT16                  data_type;
+    UINT16                  max_tx_apdu_size;
+    UINT16                  max_rx_apdu_size;
+} btif_hl_data_type_cfg_t;
+
+typedef struct
+{
+    UINT16                  data_type;
+    tBTA_HL_MDEP_ROLE       peer_mdep_role;
+} btif_hl_filter_elem_t;
+
+typedef struct
+{
+    UINT8                   num_elems;
+    btif_hl_filter_elem_t   elem[BTIF_HL_CCH_NUM_FILTER_ELEMS];
+} btif_hl_cch_filter_t;
+
+typedef struct
+{
+    BOOLEAN                 in_use;
+    UINT16                  mdl_id;
+    tBTA_HL_MDL_HANDLE      mdl_handle;
+    btif_hl_dch_op_t        dch_oper;
+    tBTA_HL_MDEP_ID         local_mdep_id;
+    UINT8                   local_mdep_cfg_idx;
+    tBTA_HL_DCH_CFG         local_cfg;
+    tBTA_HL_MDEP_ID         peer_mdep_id;
+    UINT16                  peer_data_type;
+    tBTA_HL_MDEP_ROLE       peer_mdep_role;
+    tBTA_HL_DCH_MODE        dch_mode;
+    tBTA_SEC                sec_mask;
+    BOOLEAN                 is_the_first_reliable;
+    BOOLEAN                 delete_mdl;
+    UINT16                  mtu;
+    tMCA_CHNL_CFG           chnl_cfg;
+    UINT16                  tx_size;
+    UINT8                   *p_tx_pkt;
+    UINT8                   *p_rx_pkt;
+    BOOLEAN                 cong;
+    btif_hl_soc_cb_t        *p_scb;
+    int                     channel_id;
+} btif_hl_mdl_cb_t;
+
+typedef struct
+{
+    int                     channel_id;
+    int                     mdep_cfg_idx;
+    BOOLEAN                 in_use;
+    btif_hl_chan_cb_state_t cb_state;
+    btif_hl_pend_dch_op_t   op;
+    BD_ADDR                 bd_addr;
+    BOOLEAN                 abort_pending;
+} btif_hl_pending_chan_cb_t;
+
+typedef struct
+{
+    btif_hl_mdl_cb_t        mdl[BTA_HL_NUM_MDLS_PER_MCL];
+    BOOLEAN                 in_use;
+    BOOLEAN                 is_connected;
+    UINT16                  req_ctrl_psm;
+    UINT16                  ctrl_psm;
+    UINT16                  data_psm;
+    BD_ADDR                 bd_addr;
+    UINT16                  cch_mtu;
+    tBTA_SEC                sec_mask;
+    tBTA_HL_MCL_HANDLE      mcl_handle;
+    btif_hl_pending_chan_cb_t pcb;
+    BOOLEAN                 valid_sdp_idx;
+    UINT8                   sdp_idx;
+    tBTA_HL_SDP             sdp;
+    btif_hl_cch_op_t        cch_oper;
+    alarm_t                 *cch_timer;
+} btif_hl_mcl_cb_t;
+
+typedef struct
+{
+    BOOLEAN                 active;
+    UINT16                  mdl_id;
+    UINT8                   mdep_cfg_idx;
+    BD_ADDR                 bd_addr;
+    int                     channel_id;
+} btif_hl_delete_mdl_t;
+
+typedef struct
+{
+    btif_hl_mcl_cb_t        mcb[BTA_HL_NUM_MCLS]; /* application Control Blocks */
+    BOOLEAN                 in_use;              /* this CB is in use*/
+    BOOLEAN                 reg_pending;
+    UINT8                   app_id;
+
+    tBTA_HL_SUP_FEATURE     sup_feature;
+    tBTA_HL_DCH_CFG         channel_type[BTA_HL_NUM_MDEPS];
+    tBTA_HL_SDP_INFO_IND    sdp_info_ind;
+    btif_hl_cch_filter_t    filter;
+
+    btif_hl_mdl_cfg_t       mdl_cfg[BTA_HL_NUM_MDL_CFGS];
+    int                     mdl_cfg_channel_id[BTA_HL_NUM_MDL_CFGS];
+
+    btif_hl_delete_mdl_t    delete_mdl;
+    tBTA_HL_DEVICE_TYPE     dev_type;
+    tBTA_HL_APP_HANDLE      app_handle;
+    UINT16                  sec_mask;   /* Security mask for BTM_SetSecurityLevel() */
+    char                    srv_name[BTA_SERVICE_NAME_LEN +1];        /* service name to be used in the SDP; null terminated*/
+    char                    srv_desp[BTA_SERVICE_DESP_LEN +1];        /* service description to be used in the SDP; null terminated */
+    char                    provider_name[BTA_PROVIDER_NAME_LEN +1];   /* provide name to be used in the SDP; null terminated */
+    char                    application_name[BTIF_HL_APPLICATION_NAME_LEN +1];   /* applicaiton name */
+} btif_hl_app_cb_t;
+
+typedef struct
+{
+    BOOLEAN                 in_use;
+    UINT8                   app_idx;
+} btif_hl_pending_reg_cb_t;
+
+/* BTIF-HL control block  */
+typedef struct
+{
+    btif_hl_app_cb_t        acb[BTA_HL_NUM_APPS];      /* HL Control Blocks */
+    tBTA_HL_CTRL_CBACK      *p_ctrl_cback;             /* pointer to control callback function */
+    UINT8                   next_app_id;
+    UINT16                  next_channel_id;
+    btif_hl_state_t         state;
+} btif_hl_cb_t;
+
+typedef UINT8 btif_hl_evt_t;
+
+typedef struct
+{
+    int                     app_id;
+    BD_ADDR                 bd_addr;
+    int                     mdep_cfg_index;
+    int                     channel_id;
+    btif_hl_chan_cb_state_t cb_state;
+    int                     fd;
+} btif_hl_send_chan_state_cb_t;
+
+typedef struct
+{
+    UINT8 app_idx;
+} btif_hl_reg_t;
+
+typedef btif_hl_reg_t btif_hl_unreg_t;
+typedef btif_hl_reg_t btif_hl_update_mdl_t;
+
+typedef union
+{
+    btif_hl_send_chan_state_cb_t    chan_cb;
+    btif_hl_reg_t           reg;
+    btif_hl_unreg_t         unreg;
+    btif_hl_update_mdl_t    update_mdl;
+} btif_hl_evt_cb_t;
+
+/*******************************************************************************
+**  Functions
+********************************************************************************/
+
+#define BTIF_HL_GET_CB_PTR() &(btif_hl_cb)
+#define BTIF_HL_GET_APP_CB_PTR(app_idx) &(btif_hl_cb.acb[(app_idx)])
+#define BTIF_HL_GET_MCL_CB_PTR(app_idx, mcl_idx) &(btif_hl_cb.acb[(app_idx)].mcb[(mcl_idx)])
+#define BTIF_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx) &(btif_hl_cb.acb[(app_idx)].mcb[(mcl_idx)].mdl[mdl_idx])
+#define BTIF_HL_GET_PCB_PTR(app_idx, mcl_idx) &(btif_hl_cb.acb[app_idx].mcb[mcl_idx].pcb)
+#define BTIF_HL_GET_MDL_CFG_PTR(app_idx, item_idx) &(btif_hl_cb.acb[(app_idx)].mdl_cfg[(item_idx)])
+#define BTIF_HL_GET_MDL_CFG_CHANNEL_ID_PTR(app_idx, item_idx) &(btif_hl_cb.acb[(app_idx)].mdl_cfg_channel_id[(item_idx)])
+
+extern btif_hl_cb_t  btif_hl_cb;
+extern btif_hl_cb_t *p_btif_hl_cb;
+
+extern BOOLEAN btif_hl_find_mcl_idx(UINT8 app_idx, BD_ADDR p_bd_addr, UINT8 *p_mcl_idx);
+extern BOOLEAN btif_hl_find_app_idx(UINT8 app_id, UINT8 *p_app_idx);
+extern BOOLEAN btif_hl_find_avail_mcl_idx(UINT8 app_idx, UINT8 *p_mcl_idx);
+extern BOOLEAN btif_hl_find_avail_mdl_idx(UINT8 app_idx, UINT8 mcl_idx,
+                                          UINT8 *p_mdl_idx);
+extern BOOLEAN btif_hl_find_mcl_idx_using_handle( tBTA_HL_MCL_HANDLE mcl_handle,
+                                                  UINT8 *p_app_idx, UINT8 *p_mcl_idx);
+extern BOOLEAN  btif_hl_save_mdl_cfg(UINT8 app_id, UINT8 item_idx, tBTA_HL_MDL_CFG *p_mdl_cfg);
+extern BOOLEAN  btif_hl_delete_mdl_cfg(UINT8 app_id, UINT8 item_idx);
+extern BOOLEAN btif_hl_find_mdl_idx_using_handle(tBTA_HL_MDL_HANDLE mdl_handle,
+                                                 UINT8 *p_app_idx,UINT8 *p_mcl_idx,
+                                                 UINT8 *p_mdl_idx);
+extern void btif_hl_abort_pending_chan_setup(UINT8 app_idx, UINT8 mcl_idx);
+extern BOOLEAN btif_hl_proc_pending_op(UINT8 app_idx, UINT8 mcl_idx);
+extern BOOLEAN btif_hl_load_mdl_config (UINT8 app_id, UINT8 buffer_size,
+                                        tBTA_HL_MDL_CFG *p_mdl_buf );
+#endif
diff --git a/rtkbt/code/bt/btif/include/btif_mce.h b/rtkbt/code/bt/btif/include/btif_mce.h
new file mode 100755
index 0000000..aa61cfb
--- /dev/null
+++ b/rtkbt/code/bt/btif/include/btif_mce.h
@@ -0,0 +1,35 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 The Android Open Source Project
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/*******************************************************************************
+ *
+ *  Filename:      btif_mce.h
+ *
+ *  Description:   Bluetooth MCE Interface
+ *
+ *******************************************************************************/
+
+#ifndef BTIF_MCE_H
+#define BTIF_MCE_H
+
+#include <hardware/bt_mce.h>
+
+btmce_interface_t *btif_mce_get_interface();
+
+#endif
diff --git a/rtkbt/code/bt/btif/include/btif_media.h b/rtkbt/code/bt/btif/include/btif_media.h
new file mode 100755
index 0000000..d432260
--- /dev/null
+++ b/rtkbt/code/bt/btif/include/btif_media.h
@@ -0,0 +1,303 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/*******************************************************************************
+ *
+ *  Filename:      btif_media.h
+ *
+ *  Description:   This is the audio module for the BTIF system.
+ *
+ *******************************************************************************/
+
+#ifndef BTIF_MEDIA_H
+#define BTIF_MEDIA_H
+
+#include <stdbool.h>
+
+#include "bta_api.h"
+#include "bt_common.h"
+#include "btif_av_api.h"
+#include "audio_a2dp_hw.h"
+
+/*******************************************************************************
+ **  Constants
+ *******************************************************************************/
+
+/* Generic part */
+#define BTIF_SUCCESS                         0
+
+/**
+ * AV (Audio Video source) Errors
+ */
+#define BTIF_ERROR_SRV_AV_NOT_ENABLED        700     /* AV is not enabled */
+#define BTIF_ERROR_SRV_AV_FEEDING_NOT_SUPPORTED 701  /* Requested Feeding not supported */
+#define BTIF_ERROR_SRV_AV_BUSY               702     /* Another operation ongoing */
+#define BTIF_ERROR_SRV_AV_NOT_OPENED         703     /* No AV link opened */
+#define BTIF_ERROR_SRV_AV_NOT_STARTED        704     /* AV is not started */
+#define BTIF_ERROR_SRV_AV_CP_NOT_SUPPORTED   705     /* Content protection is not supported by all headsets */
+
+/* Transcoding definition for TxTranscoding and RxTranscoding */
+#define BTIF_MEDIA_TRSCD_OFF             0
+#define BTIF_MEDIA_TRSCD_PCM_2_SBC       1  /* Tx */
+
+
+/*******************************************************************************
+ **  Data types
+ *******************************************************************************/
+
+typedef int tBTIF_STATUS;
+
+/* tBTIF_MEDIA_INIT_AUDIO msg structure */
+typedef struct
+{
+        BT_HDR hdr;
+        UINT16 SamplingFreq; /* 16k, 32k, 44.1k or 48k*/
+        UINT8 ChannelMode; /* mono, dual, stereo or joint stereo*/
+        UINT8 NumOfSubBands; /* 4 or 8 */
+        UINT8 NumOfBlocks; /* 4, 8, 12 or 16*/
+        UINT8 AllocationMethod; /* loudness or SNR*/
+        UINT16 MtuSize; /* peer mtu size */
+} tBTIF_MEDIA_INIT_AUDIO;
+
+#if (BTA_AV_INCLUDED == TRUE)
+/* tBTIF_MEDIA_UPDATE_AUDIO msg structure */
+typedef struct
+{
+        BT_HDR hdr;
+        UINT16 MinMtuSize; /* Minimum peer mtu size */
+        UINT8 MaxBitPool; /* Maximum peer bitpool */
+        UINT8 MinBitPool; /* Minimum peer bitpool */
+} tBTIF_MEDIA_UPDATE_AUDIO;
+
+/* tBTIF_MEDIA_INIT_AUDIO_FEEDING msg structure */
+typedef struct
+{
+        BT_HDR hdr;
+        tBTIF_AV_FEEDING_MODE feeding_mode;
+        tBTIF_AV_MEDIA_FEEDINGS feeding;
+} tBTIF_MEDIA_INIT_AUDIO_FEEDING;
+
+typedef struct
+{
+        BT_HDR hdr;
+        UINT8 codec_info[AVDT_CODEC_SIZE];
+} tBTIF_MEDIA_SINK_CFG_UPDATE;
+#endif
+
+#ifdef USE_AUDIO_TRACK
+typedef enum {
+        BTIF_MEDIA_FOCUS_NOT_GRANTED = 0,
+        BTIF_MEDIA_FOCUS_GRANTED
+} btif_media_audio_focus_state;
+
+typedef struct
+{
+        BT_HDR hdr;
+        UINT8 focus_state;
+} tBTIF_MEDIA_SINK_FOCUS_UPDATE;
+#endif
+
+/*******************************************************************************
+ **  Public functions
+ *******************************************************************************/
+
+/*******************************************************************************
+ **
+ ** Function         btif_av_task
+ **
+ ** Description
+ **
+ ** Returns          void
+ **
+ *******************************************************************************/
+extern void btif_media_task(void);
+
+/*******************************************************************************
+ **
+ ** Function         btif_media_task_enc_init_req
+ **
+ ** Description      Request to initialize the media task encoder
+ **
+ ** Returns          TRUE is success
+ **
+ *******************************************************************************/
+extern BOOLEAN btif_media_task_enc_init_req(tBTIF_MEDIA_INIT_AUDIO * p_msg);
+
+/*******************************************************************************
+ **
+ ** Function         btif_media_task_enc_update_req
+ **
+ ** Description      Request to update the media task encoder
+ **
+ ** Returns          TRUE is success
+ **
+ *******************************************************************************/
+#if (BTA_AV_INCLUDED == TRUE)
+extern BOOLEAN btif_media_task_enc_update_req(tBTIF_MEDIA_UPDATE_AUDIO * p_msg);
+#endif
+
+/*******************************************************************************
+ **
+ ** Function         btif_media_task_start_aa_req
+ **
+ ** Description      Request to start audio encoding task
+ **
+ ** Returns          TRUE is success
+ **
+ *******************************************************************************/
+extern BOOLEAN btif_media_task_start_aa_req(void);
+
+/*******************************************************************************
+ **
+ ** Function         btif_media_task_stop_aa_req
+ **
+ ** Description      Request to stop audio encoding task
+ **
+ ** Returns          TRUE is success
+ **
+ *******************************************************************************/
+extern BOOLEAN btif_media_task_stop_aa_req(void);
+
+/*******************************************************************************
+ **
+ ** Function         btif_media_task_aa_rx_flush_req
+ **
+ ** Description      Request to flush audio decoding pipe
+ **
+ ** Returns          TRUE is success
+ **
+ *******************************************************************************/
+extern BOOLEAN btif_media_task_aa_rx_flush_req(void);
+/*******************************************************************************
+ **
+ ** Function         btif_media_task_aa_tx_flush_req
+ **
+ ** Description      Request to flush audio encoding pipe
+ **
+ ** Returns          TRUE is success
+ **
+ *******************************************************************************/
+extern BOOLEAN btif_media_task_aa_tx_flush_req(void);
+
+/*******************************************************************************
+ **
+ ** Function         btif_media_aa_readbuf
+ **
+ ** Description      Read an audio GKI buffer from the BTIF media TX queue
+ **
+ ** Returns          pointer on a GKI aa buffer ready to send
+ **
+ *******************************************************************************/
+extern BT_HDR *btif_media_aa_readbuf(void);
+
+/*******************************************************************************
+ **
+ ** Function         btif_media_sink_enque_buf
+ **
+ ** Description      This function is called by the av_co to fill A2DP Sink Queue
+ **
+ **
+ ** Returns          size of the queue
+ *******************************************************************************/
+ UINT8 btif_media_sink_enque_buf(BT_HDR *p_buf);
+
+
+
+/*******************************************************************************
+ **
+ ** Function         btif_media_aa_writebuf
+ **
+ ** Description      Enqueue a Advance Audio media GKI buffer to be processed by btif media task.
+ **
+ ** Returns          TRUE is success
+ **
+ *******************************************************************************/
+extern void btif_media_aa_writebuf(BT_HDR *pBuf, UINT32 timestamp, UINT16 seq_num);
+
+/*******************************************************************************
+ **
+ ** Function         btif_media_av_writebuf
+ **
+ ** Description      Enqueue a video media GKI buffer to be processed by btif media task.
+ **
+ ** Returns          TRUE is success
+ **
+ *******************************************************************************/
+extern BOOLEAN btif_media_av_writebuf(UINT8 *p_media, UINT32 media_len,
+                                     UINT32 timestamp, UINT16 seq_num);
+
+#if (BTA_AV_INCLUDED == TRUE)
+/*******************************************************************************
+ **
+ ** Function         btif_media_task_audio_feeding_init_req
+ **
+ ** Description      Request to initialize audio feeding
+ **
+ ** Returns          TRUE is success
+ **
+ *******************************************************************************/
+
+extern BOOLEAN btif_media_task_audio_feeding_init_req(tBTIF_MEDIA_INIT_AUDIO_FEEDING *p_msg);
+#endif
+
+/*******************************************************************************
+ **
+ ** Function         dump_codec_info
+ **
+ ** Description      Decode and display codec_info (for debug)
+ **
+ ** Returns          void
+ **
+ *******************************************************************************/
+extern void dump_codec_info(unsigned char *p_codec);
+
+/**
+ * Local adaptation helper functions between btif and media task
+ */
+
+bool btif_a2dp_start_media_task(void);
+void btif_a2dp_stop_media_task(void);
+
+void btif_a2dp_on_init(void);
+void btif_a2dp_setup_codec(void);
+void btif_a2dp_on_idle(void);
+void btif_a2dp_on_open(void);
+BOOLEAN btif_a2dp_on_started(tBTA_AV_START *p_av, BOOLEAN pending_start);
+void btif_a2dp_ack_fail(void);
+void btif_a2dp_on_stop_req(void);
+void btif_a2dp_on_stopped(tBTA_AV_SUSPEND *p_av);
+void btif_a2dp_on_suspend(void);
+void btif_a2dp_on_suspended(tBTA_AV_SUSPEND *p_av);
+void btif_a2dp_set_tx_flush(BOOLEAN enable);
+void btif_a2dp_set_rx_flush(BOOLEAN enable);
+void btif_media_check_iop_exceptions(UINT8 *peer_bda);
+void btif_reset_decoder(UINT8 *p_av);
+void btif_a2dp_on_offload_started(tBTA_AV_STATUS status);
+
+
+int btif_a2dp_get_track_frequency(UINT8 frequency);
+int btif_a2dp_get_track_channel_count(UINT8 channeltype);
+void btif_a2dp_set_peer_sep(UINT8 sep);
+#ifdef USE_AUDIO_TRACK
+void btif_a2dp_set_audio_focus_state(btif_media_audio_focus_state state);
+void btif_a2dp_set_audio_track_gain(float gain);
+#endif
+
+void btif_debug_a2dp_dump(int fd);
+void btif_update_a2dp_metrics(void);
+#endif
diff --git a/rtkbt/code/bt/btif/include/btif_pan.h b/rtkbt/code/bt/btif/include/btif_pan.h
new file mode 100755
index 0000000..d9ecb2e
--- /dev/null
+++ b/rtkbt/code/bt/btif/include/btif_pan.h
@@ -0,0 +1,36 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/*******************************************************************************
+ *
+ *  Filename:      btif_pan.h
+ *
+ *  Description:   Bluetooth pan Interface
+ *
+ *******************************************************************************/
+
+#ifndef BTIF_PAN_H
+#define BTIF_PAN_H
+
+#include <hardware/bt_pan.h>
+
+btpan_interface_t *btif_pan_interface();
+void btif_pan_init();
+void btif_pan_cleanup();
+
+#endif
diff --git a/rtkbt/code/bt/btif/include/btif_pan_internal.h b/rtkbt/code/bt/btif/include/btif_pan_internal.h
new file mode 100755
index 0000000..fad5577
--- /dev/null
+++ b/rtkbt/code/bt/btif/include/btif_pan_internal.h
@@ -0,0 +1,123 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/*******************************************************************************
+ *
+ *  Filename:      btif_pan_internal.h
+ *
+ *  Description:   Bluetooth pan internal
+ *
+ *******************************************************************************/
+
+#ifndef BTIF_PAN_INTERNAL_H
+#define BTIF_PAN_INTERNAL_H
+
+#include "btif_pan.h"
+#include "bt_types.h"
+
+/*******************************************************************************
+**  Constants & Macros
+********************************************************************************/
+
+#define PAN_NAP_SERVICE_NAME "Android Network Access Point"
+#define PANU_SERVICE_NAME "Android Network User"
+#define TAP_IF_NAME "bt-pan"
+#define ETH_ADDR_LEN        6
+#define TAP_MAX_PKT_WRITE_LEN 2000
+#ifndef PAN_SECURITY
+#define PAN_SECURITY (BTM_SEC_IN_AUTHENTICATE | BTM_SEC_OUT_AUTHENTICATE | BTM_SEC_IN_ENCRYPT | BTM_SEC_OUT_ENCRYPT)
+#endif
+
+#define PAN_STATE_UNKNOWN   0
+#define PAN_STATE_OPEN      1
+#define PAN_STATE_CLOSE     2
+#ifndef PAN_ROLE_INACTIVE
+#define PAN_ROLE_INACTIVE 0
+#endif
+
+
+/*******************************************************************************
+**  Type definitions and return values
+********************************************************************************/
+
+typedef struct eth_hdr
+{
+    unsigned char h_dest[ETH_ADDR_LEN];
+    unsigned char h_src[ETH_ADDR_LEN];
+    short         h_proto;
+} tETH_HDR;
+
+typedef struct
+{
+    int handle;
+    int state;
+    UINT16 protocol;
+    BD_ADDR peer;
+    int local_role;
+    int remote_role;
+    unsigned char eth_addr[ETH_ADDR_LEN];
+} btpan_conn_t;
+
+typedef struct
+{
+    int btl_if_handle;
+    int btl_if_handle_panu;
+    int tap_fd;
+    int enabled;
+    int open_count;
+    int flow; // 1: outbound data flow on; 0: outbound data flow off
+    btpan_conn_t conns[MAX_PAN_CONNS];
+    int congest_packet_size;
+    unsigned char congest_packet[1600]; //max ethernet packet size
+} btpan_cb_t;
+
+
+/*******************************************************************************
+**  Functions
+********************************************************************************/
+
+extern btpan_cb_t btpan_cb;
+btpan_conn_t *btpan_new_conn(int handle, const BD_ADDR addr, int local_role, int peer_role);
+btpan_conn_t *btpan_find_conn_addr(const BD_ADDR addr);
+btpan_conn_t *btpan_find_conn_handle(UINT16 handle);
+void btpan_set_flow_control(BOOLEAN enable);
+int btpan_get_connected_count(void);
+int btpan_tap_open(void);
+void create_tap_read_thread(int tap_fd);
+void destroy_tap_read_thread(void);
+int btpan_tap_close(int tap_fd);
+int btpan_tap_send(int tap_fd, const BD_ADDR src, const BD_ADDR dst, UINT16 protocol,
+                   const char* buff, UINT16 size, BOOLEAN ext, BOOLEAN forward);
+
+static inline int is_empty_eth_addr(const BD_ADDR addr)
+{
+    int i;
+    for(i = 0; i < BD_ADDR_LEN; i++)
+        if(addr[i] != 0)
+            return 0;
+    return 1;
+}
+
+static inline int is_valid_bt_eth_addr(const BD_ADDR addr)
+{
+    if(is_empty_eth_addr(addr))
+        return 0;
+    return addr[0] & 1 ? 0 : 1; /* Cannot be multicasting address */
+}
+
+#endif
diff --git a/rtkbt/code/bt/btif/include/btif_profile_queue.h b/rtkbt/code/bt/btif/include/btif_profile_queue.h
new file mode 100755
index 0000000..5cc3d0a
--- /dev/null
+++ b/rtkbt/code/bt/btif/include/btif_profile_queue.h
@@ -0,0 +1,39 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/*******************************************************************************
+ *
+ *  Filename:      btif_profile_queue.h
+ *
+ *  Description:   Bluetooth remote device connection queuing
+ *
+ *******************************************************************************/
+
+#ifndef BTIF_PROFILE_QUEUE_H
+#define BTIF_PROFILE_QUEUE_H
+
+#include <hardware/bluetooth.h>
+
+typedef bt_status_t (*btif_connect_cb_t) (bt_bdaddr_t *bda, uint16_t uuid);
+
+bt_status_t btif_queue_connect(uint16_t uuid, const bt_bdaddr_t *bda, btif_connect_cb_t connect_cb);
+void btif_queue_advance();
+bt_status_t btif_queue_connect_next(void);
+void btif_queue_release();
+
+#endif
diff --git a/rtkbt/code/bt/btif/include/btif_sdp.h b/rtkbt/code/bt/btif/include/btif_sdp.h
new file mode 100755
index 0000000..2aac1c3
--- /dev/null
+++ b/rtkbt/code/bt/btif/include/btif_sdp.h
@@ -0,0 +1,34 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 The Android Open Source Project
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/*******************************************************************************
+ *
+ *  Filename:      btif_sdp.h
+ *
+ *  Description:   Bluetooth SDP search Interface
+ *
+ *******************************************************************************/
+
+#ifndef BTIF_SDP_H
+#define BTIF_SDP_H
+
+#include <hardware/bt_sdp.h>
+
+btsdp_interface_t *btif_sdp_get_interface();
+
+#endif
diff --git a/rtkbt/code/bt/btif/include/btif_sm.h b/rtkbt/code/bt/btif/include/btif_sm.h
new file mode 100755
index 0000000..b4caf9e
--- /dev/null
+++ b/rtkbt/code/bt/btif/include/btif_sm.h
@@ -0,0 +1,120 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/*****************************************************************************
+ *
+ *  Filename:      btif_sm.h
+ *
+ *  Description:   Generic BTIF state machine API
+ *
+ *****************************************************************************/
+
+#ifndef BTIF_SM_H
+#define BTIF_SM_H
+
+#include <hardware/bluetooth.h>
+
+#include "stack/include/bt_types.h"
+
+/*****************************************************************************
+**  Constants & Macros
+******************************************************************************/
+
+/* Generic Enter/Exit state machine events */
+#define BTIF_SM_ENTER_EVT 0xFFFF
+#define BTIF_SM_EXIT_EVT  0xFFFE
+
+/*****************************************************************************
+**  Type definitions and return values
+******************************************************************************/
+typedef UINT32 btif_sm_state_t;
+typedef UINT32 btif_sm_event_t;
+typedef void* btif_sm_handle_t;
+typedef BOOLEAN(*btif_sm_handler_t)(btif_sm_event_t event, void *data);
+
+/*****************************************************************************
+**  Functions
+**
+**  NOTE: THESE APIs SHOULD BE INVOKED ONLY IN THE BTIF CONTEXT
+**
+******************************************************************************/
+
+/*****************************************************************************
+**
+** Function     btif_sm_init
+**
+** Description  Initializes the state machine with the state handlers
+**              The caller should ensure that the table and the corresponding
+**              states match. The location that 'p_handlers' points to shall
+**              be available until the btif_sm_shutdown API is invoked.
+**
+** Returns      Returns a pointer to the initialized state machine handle.
+**
+******************************************************************************/
+btif_sm_handle_t btif_sm_init(const btif_sm_handler_t *p_handlers,
+                               btif_sm_state_t initial_state);
+
+/*****************************************************************************
+**
+** Function     btif_sm_shutdown
+**
+** Description  Tears down the state machine
+**
+** Returns      None
+**
+******************************************************************************/
+void btif_sm_shutdown(btif_sm_handle_t handle);
+
+/*****************************************************************************
+**
+** Function     btif_sm_get_state
+**
+** Description  Fetches the current state of the state machine
+**
+** Returns      Current state
+**
+******************************************************************************/
+btif_sm_state_t btif_sm_get_state(btif_sm_handle_t handle);
+
+/*****************************************************************************
+**
+** Function     btif_sm_dispatch
+**
+** Description  Dispatches the 'event' along with 'data' to the current state handler
+**
+** Returns      Returns BT_STATUS_OK on success, BT_STATUS_FAIL otherwise
+**
+******************************************************************************/
+bt_status_t btif_sm_dispatch(btif_sm_handle_t handle, btif_sm_event_t event,
+                                void *data);
+
+/*****************************************************************************
+**
+** Function     btif_sm_change_state
+**
+** Description  Make a transition to the new 'state'. The 'BTIF_SM_EXIT_EVT'
+**              shall be invoked before exiting the current state. The
+**              'BTIF_SM_ENTER_EVT' shall be invoked before entering the new state
+**
+**
+** Returns      Returns BT_STATUS_OK on success, BT_STATUS_FAIL otherwise
+**
+******************************************************************************/
+bt_status_t btif_sm_change_state(btif_sm_handle_t handle, btif_sm_state_t state);
+
+#endif /* BTIF_SM_H */
diff --git a/rtkbt/code/bt/btif/include/btif_sock.h b/rtkbt/code/bt/btif/include/btif_sock.h
new file mode 100755
index 0000000..4ad4ab6
--- /dev/null
+++ b/rtkbt/code/bt/btif/include/btif_sock.h
@@ -0,0 +1,28 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+#include "btif_uid.h"
+
+#include <hardware/bt_sock.h>
+
+btsock_interface_t *btif_sock_get_interface(void);
+
+bt_status_t btif_sock_init(uid_set_t* uid_set);
+void btif_sock_cleanup(void);
diff --git a/rtkbt/code/bt/btif/include/btif_sock_l2cap.h b/rtkbt/code/bt/btif/include/btif_sock_l2cap.h
new file mode 100755
index 0000000..1286e36
--- /dev/null
+++ b/rtkbt/code/bt/btif/include/btif_sock_l2cap.h
@@ -0,0 +1,25 @@
+/*******************************************************************************
+ *  L2CAP Socket Interface
+ *******************************************************************************/
+
+#ifndef BTIF_SOCK_L2CAP_H
+#define BTIF_SOCK_L2CAP_H
+
+#include "btif_uid.h"
+
+#include <hardware/bluetooth.h>
+
+#define L2CAP_MASK_FIXED_CHANNEL    0x10000
+#define L2CAP_MASK_LE_COC_CHANNEL   0x20000
+
+bt_status_t btsock_l2cap_init(int handle, uid_set_t* set);
+bt_status_t btsock_l2cap_cleanup();
+bt_status_t btsock_l2cap_listen(const char* name, int channel,
+                              int* sock_fd, int flags, int app_uid);
+bt_status_t btsock_l2cap_connect(const bt_bdaddr_t *bd_addr,
+                               int channel, int* sock_fd, int flags, int app_uid);
+void btsock_l2cap_signaled(int fd, int flags, uint32_t user_id);
+void on_l2cap_psm_assigned(int id, int psm);
+
+#endif
+
diff --git a/rtkbt/code/bt/btif/include/btif_sock_rfc.h b/rtkbt/code/bt/btif/include/btif_sock_rfc.h
new file mode 100755
index 0000000..7d93856
--- /dev/null
+++ b/rtkbt/code/bt/btif/include/btif_sock_rfc.h
@@ -0,0 +1,40 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/*******************************************************************************
+ *
+ *  Filename:      btif_sock.h
+ *
+ *  Description:   Bluetooth socket Interface
+ *
+ *******************************************************************************/
+
+#ifndef BTIF_SOCK_RFC_H
+#define BTIF_SOCK_RFC_H
+
+#include "btif_uid.h"
+
+bt_status_t btsock_rfc_init(int handle, uid_set_t* set);
+bt_status_t btsock_rfc_cleanup();
+bt_status_t btsock_rfc_listen(const char* name, const uint8_t* uuid, int channel,
+                              int* sock_fd, int flags, int app_uid);
+bt_status_t btsock_rfc_connect(const bt_bdaddr_t *bd_addr, const uint8_t* uuid,
+                               int channel, int* sock_fd, int flags, int app_uid);
+void btsock_rfc_signaled(int fd, int flags, uint32_t user_id);
+
+#endif
diff --git a/rtkbt/code/bt/btif/include/btif_sock_sco.h b/rtkbt/code/bt/btif/include/btif_sock_sco.h
new file mode 100755
index 0000000..972aeeb
--- /dev/null
+++ b/rtkbt/code/bt/btif/include/btif_sock_sco.h
@@ -0,0 +1,28 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2013 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+#include <hardware/bluetooth.h>
+
+typedef struct thread_t thread_t;
+
+bt_status_t btsock_sco_init(thread_t *thread);
+bt_status_t btsock_sco_cleanup(void);
+bt_status_t btsock_sco_listen(int *sock_fd, int flags);
+bt_status_t btsock_sco_connect(const bt_bdaddr_t *bd_addr, int *sock_fd, int flags);
diff --git a/rtkbt/code/bt/btif/include/btif_sock_sdp.h b/rtkbt/code/bt/btif/include/btif_sock_sdp.h
new file mode 100755
index 0000000..7353cc9
--- /dev/null
+++ b/rtkbt/code/bt/btif/include/btif_sock_sdp.h
@@ -0,0 +1,48 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#ifndef BTIF_SOCK_SDP_H
+#define BTIF_SOCK_SDP_H
+
+#include <string.h>
+#include <stdint.h>
+#include <stdbool.h>
+
+static const uint8_t  UUID_OBEX_OBJECT_PUSH[] = {0x00, 0x00, 0x11, 0x05, 0x00, 0x00, 0x10, 0x00,
+                                                 0x80, 0x00, 0x00, 0x80, 0x5F, 0x9B, 0x34, 0xFB};
+static const uint8_t  UUID_PBAP_PSE[]         = {0x00, 0x00, 0x11, 0x2F, 0x00, 0x00, 0x10, 0x00,
+                                                 0x80, 0x00, 0x00, 0x80, 0x5F, 0x9B, 0x34, 0xFB};
+static const uint8_t  UUID_MAP_MAS[]          = {0x00, 0x00, 0x11, 0x32, 0x00, 0x00, 0x10, 0x00,
+                                                 0x80, 0x00, 0x00, 0x80, 0x5F, 0x9B, 0x34, 0xFB};
+static const uint8_t  UUID_SAP[]              = {0x00, 0x00, 0x11, 0x2D, 0x00, 0x00, 0x10, 0x00,
+                                                 0x80, 0x00, 0x00, 0x80, 0x5F, 0x9B, 0x34, 0xFB};
+static const uint8_t  UUID_SPP[]              = {0x00, 0x00, 0x11, 0x01, 0x00, 0x00, 0x10, 0x00,
+                                                 0x80, 0x00, 0x00, 0x80, 0x5F, 0x9B, 0x34, 0xFB};
+
+static inline bool is_uuid_empty(const uint8_t* uuid)
+{
+   static uint8_t empty_uuid[16];
+   return uuid == NULL || memcmp(uuid, empty_uuid, sizeof(empty_uuid)) == 0;
+}
+
+int add_rfc_sdp_rec(const char* name, const uint8_t* uuid, int scn);
+void del_rfc_sdp_rec(int handle);
+bool is_reserved_rfc_channel(int channel);
+int get_reserved_rfc_channel(const uint8_t* uuid);
+
+#endif
diff --git a/rtkbt/code/bt/btif/include/btif_sock_thread.h b/rtkbt/code/bt/btif/include/btif_sock_thread.h
new file mode 100755
index 0000000..b81c494
--- /dev/null
+++ b/rtkbt/code/bt/btif/include/btif_sock_thread.h
@@ -0,0 +1,53 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#ifndef BTIF_SOCK_THREAD_H
+#define BTIF_SOCK_THREAD_H
+
+#include <stdbool.h>
+
+#include <hardware/bluetooth.h>
+#include <hardware/bt_sock.h>
+
+/*******************************************************************************
+**  Constants & Macros
+********************************************************************************/
+
+#define SOCK_THREAD_FD_RD           1        /* BT socket read signal */
+#define SOCK_THREAD_FD_WR           (1 << 1) /* BT socket write signal */
+#define SOCK_THREAD_FD_EXCEPTION    (1 << 2) /* BT socket exception singal */
+#define SOCK_THREAD_ADD_FD_SYNC     (1 << 3) /* Add BT socket fd in current socket
+                                                poll thread context immediately */
+
+/*******************************************************************************
+**  Functions
+********************************************************************************/
+
+typedef void (*btsock_signaled_cb)(int fd, int type, int flags, uint32_t user_id);
+typedef void (*btsock_cmd_cb)(int cmd_fd, int type, int size, uint32_t user_id);
+
+int btsock_thread_init();
+int btsock_thread_add_fd(int handle, int fd, int type, int flags, uint32_t user_id);
+bool btsock_thread_remove_fd_and_close(int thread_handle, int fd);
+int btsock_thread_wakeup(int handle);
+int btsock_thread_post_cmd(int handle, int cmd_type, const unsigned char* cmd_data,
+                           int data_size, uint32_t user_id);
+int btsock_thread_create(btsock_signaled_cb callback, btsock_cmd_cb cmd_callback);
+int btsock_thread_exit(int handle);
+
+#endif
diff --git a/rtkbt/code/bt/btif/include/btif_sock_util.h b/rtkbt/code/bt/btif/include/btif_sock_util.h
new file mode 100755
index 0000000..eb915f9
--- /dev/null
+++ b/rtkbt/code/bt/btif/include/btif_sock_util.h
@@ -0,0 +1,38 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/*******************************************************************************
+ *
+ *  Filename:      btif_sock_util.h
+ *
+ *  Description:   Bluetooth socket Interface Helper functions
+ *
+ *******************************************************************************/
+
+#ifndef BTIF_SOCK_UTIL_H
+#define BTIF_SOCK_UTIL_H
+
+#include <stdint.h>
+
+void dump_bin(const char* title, const char* data, int size);
+
+int sock_send_fd(int sock_fd, const uint8_t* buffer, int len, int send_fd);
+int sock_send_all(int sock_fd, const uint8_t* buf, int len);
+int sock_recv_all(int sock_fd, uint8_t* buf, int len);
+
+#endif
diff --git a/rtkbt/code/bt/btif/include/btif_storage.h b/rtkbt/code/bt/btif/include/btif_storage.h
new file mode 100755
index 0000000..bc1060c
--- /dev/null
+++ b/rtkbt/code/bt/btif/include/btif_storage.h
@@ -0,0 +1,322 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#ifndef BTIF_STORAGE_H
+#define BTIF_STORAGE_H
+
+#include <hardware/bluetooth.h>
+
+#include "bt_target.h"
+#include "bt_types.h"
+
+/*******************************************************************************
+**  Constants & Macros
+********************************************************************************/
+#define BTIF_STORAGE_FILL_PROPERTY(p_prop, t, l, p_v) \
+         (p_prop)->type = t;(p_prop)->len = l; (p_prop)->val = (p_v);
+
+/*******************************************************************************
+**  Functions
+********************************************************************************/
+
+/*******************************************************************************
+**
+** Function         btif_storage_get_adapter_property
+**
+** Description      BTIF storage API - Fetches the adapter property->type
+**                  from NVRAM and fills property->val.
+**                  Caller should provide memory for property->val and
+**                  set the property->val
+**
+** Returns          BT_STATUS_SUCCESS if the fetch was successful,
+**                  BT_STATUS_FAIL otherwise
+**
+*******************************************************************************/
+bt_status_t btif_storage_get_adapter_property(bt_property_t *property);
+
+/*******************************************************************************
+**
+** Function         btif_storage_set_adapter_property
+**
+** Description      BTIF storage API - Stores the adapter property
+**                  to NVRAM
+**
+** Returns          BT_STATUS_SUCCESS if the store was successful,
+**                  BT_STATUS_FAIL otherwise
+**
+*******************************************************************************/
+bt_status_t btif_storage_set_adapter_property(bt_property_t *property);
+
+/*******************************************************************************
+**
+** Function         btif_storage_get_remote_device_property
+**
+** Description      BTIF storage API - Fetches the remote device property->type
+**                  from NVRAM and fills property->val.
+**                  Caller should provide memory for property->val and
+**                  set the property->val
+**
+** Returns          BT_STATUS_SUCCESS if the fetch was successful,
+**                  BT_STATUS_FAIL otherwise
+**
+*******************************************************************************/
+bt_status_t btif_storage_get_remote_device_property(bt_bdaddr_t *remote_bd_addr,
+                                                    bt_property_t *property);
+
+/*******************************************************************************
+**
+** Function         btif_storage_set_remote_device_property
+**
+** Description      BTIF storage API - Stores the remote device property
+**                  to NVRAM
+**
+** Returns          BT_STATUS_SUCCESS if the store was successful,
+**                  BT_STATUS_FAIL otherwise
+**
+*******************************************************************************/
+bt_status_t btif_storage_set_remote_device_property(bt_bdaddr_t *remote_bd_addr,
+                                                    bt_property_t *property);
+
+/*******************************************************************************
+**
+** Function         btif_storage_add_remote_device
+**
+** Description      BTIF storage API - Adds a newly discovered device to
+**                  track along with the timestamp. Also, stores the various
+**                  properties - RSSI, BDADDR, NAME (if found in EIR)
+**
+** Returns          BT_STATUS_SUCCESS if successful,
+**                  BT_STATUS_FAIL otherwise
+**
+*******************************************************************************/
+bt_status_t btif_storage_add_remote_device(bt_bdaddr_t *remote_bd_addr,
+                                           uint32_t num_properties,
+                                           bt_property_t *properties);
+
+/*******************************************************************************
+**
+** Function         btif_storage_add_bonded_device
+**
+** Description      BTIF storage API - Adds the newly bonded device to NVRAM
+**                  along with the link-key, Key type and Pin key length
+**
+** Returns          BT_STATUS_SUCCESS if the store was successful,
+**                  BT_STATUS_FAIL otherwise
+**
+*******************************************************************************/
+bt_status_t btif_storage_add_bonded_device(bt_bdaddr_t *remote_bd_addr,
+                                           LINK_KEY link_key,
+                                           uint8_t key_type,
+                                           uint8_t pin_length);
+
+/*******************************************************************************
+**
+** Function         btif_storage_remove_bonded_device
+**
+** Description      BTIF storage API - Deletes the bonded device from NVRAM
+**
+** Returns          BT_STATUS_SUCCESS if the deletion was successful,
+**                  BT_STATUS_FAIL otherwise
+**
+*******************************************************************************/
+bt_status_t btif_storage_remove_bonded_device(bt_bdaddr_t *remote_bd_addr);
+
+/*******************************************************************************
+**
+** Function         btif_storage_remove_bonded_device
+**
+** Description      BTIF storage API - Deletes the bonded device from NVRAM
+**
+** Returns          BT_STATUS_SUCCESS if the deletion was successful,
+**                  BT_STATUS_FAIL otherwise
+**
+*******************************************************************************/
+bt_status_t btif_storage_load_bonded_devices(void);
+
+/*******************************************************************************
+**
+** Function         btif_storage_read_hl_apps_cb
+**
+** Description      BTIF storage API - Read HL application control block from NVRAM
+**
+** Returns          BT_STATUS_SUCCESS if the operation was successful,
+**                  BT_STATUS_FAIL otherwise
+**
+*******************************************************************************/
+bt_status_t btif_storage_read_hl_apps_cb(char *value, int value_size);
+
+/*******************************************************************************
+**
+** Function         btif_storage_write_hl_apps_cb
+**
+** Description      BTIF storage API - Write HL application control block to NVRAM
+**
+** Returns          BT_STATUS_SUCCESS if the operation was successful,
+**                  BT_STATUS_FAIL otherwise
+**
+*******************************************************************************/
+bt_status_t btif_storage_write_hl_apps_cb(char *value, int value_size);
+
+/*******************************************************************************
+**
+** Function         btif_storage_read_hl_apps_cb
+**
+** Description      BTIF storage API - Read HL application configuration from NVRAM
+**
+** Returns          BT_STATUS_SUCCESS if the operation was successful,
+**                  BT_STATUS_FAIL otherwise
+**
+*******************************************************************************/
+bt_status_t btif_storage_read_hl_app_data(UINT8 app_idx, char *value, int value_size);
+
+/*******************************************************************************
+**
+** Function         btif_storage_write_hl_app_data
+**
+** Description      BTIF storage API - Write HL application configuration to NVRAM
+**
+** Returns          BT_STATUS_SUCCESS if the operation was successful,
+**                  BT_STATUS_FAIL otherwise
+**
+*******************************************************************************/
+bt_status_t btif_storage_write_hl_app_data(UINT8 app_idx, char *value, int value_size);
+
+/*******************************************************************************
+**
+** Function         btif_storage_read_hl_mdl_data
+**
+** Description      BTIF storage API - Read HL application MDL configuration from NVRAM
+**
+** Returns          BT_STATUS_SUCCESS if the operation was successful,
+**                  BT_STATUS_FAIL otherwise
+**
+*******************************************************************************/
+bt_status_t btif_storage_read_hl_mdl_data(UINT8 app_idx, char *value, int value_size);
+
+/*******************************************************************************
+**
+** Function         btif_storage_write_hl_mdl_data
+**
+** Description      BTIF storage API - Write HL application MDL configuration from NVRAM
+**
+** Returns          BT_STATUS_SUCCESS if the operation was successful,
+**                  BT_STATUS_FAIL otherwise
+**
+*******************************************************************************/
+bt_status_t btif_storage_write_hl_mdl_data(UINT8 app_idx, char *value, int value_size);
+
+/*******************************************************************************
+**
+** Function         btif_storage_add_hid_device_info
+**
+** Description      BTIF storage API - Adds the hid information of bonded hid devices-to NVRAM
+**
+** Returns          BT_STATUS_SUCCESS if the store was successful,
+**                  BT_STATUS_FAIL otherwise
+**
+*******************************************************************************/
+
+bt_status_t btif_storage_add_hid_device_info(bt_bdaddr_t *remote_bd_addr,
+                                                    UINT16 attr_mask, UINT8 sub_class,
+                                                    UINT8 app_id, UINT16 vendor_id,
+                                                    UINT16 product_id, UINT16 version,
+                                                    UINT8 ctry_code, UINT16 ssr_max_latency,
+                                                    UINT16 ssr_min_tout, UINT16 dl_len, UINT8 *dsc_list);
+
+/*******************************************************************************
+**
+** Function         btif_storage_load_bonded_hid_info
+**
+** Description      BTIF storage API - Loads hid info for all the bonded devices from NVRAM
+**                  and adds those devices  to the BTA_HH.
+**
+** Returns          BT_STATUS_SUCCESS if successful, BT_STATUS_FAIL otherwise
+**
+*******************************************************************************/
+bt_status_t btif_storage_load_bonded_hid_info(void);
+
+/*******************************************************************************
+**
+** Function         btif_storage_remove_hid_info
+**
+** Description      BTIF storage API - Deletes the bonded hid device info from NVRAM
+**
+** Returns          BT_STATUS_SUCCESS if the deletion was successful,
+**                  BT_STATUS_FAIL otherwise
+**
+*******************************************************************************/
+bt_status_t btif_storage_remove_hid_info(bt_bdaddr_t *remote_bd_addr);
+
+/*******************************************************************************
+**
+** Function         btif_storage_is_retricted_device
+**
+** Description      BTIF storage API - checks if this device is a restricted device
+**
+** Returns          TRUE  if the device is labled as restricted
+**                  FALSE otherwise
+**
+*******************************************************************************/
+BOOLEAN btif_storage_is_restricted_device(const bt_bdaddr_t *remote_bd_addr);
+
+#if (BLE_INCLUDED == TRUE)
+bt_status_t btif_storage_add_ble_bonding_key( bt_bdaddr_t *remote_bd_addr,
+                                              char *key,
+                                              uint8_t key_type,
+                                              uint8_t key_length);
+bt_status_t btif_storage_get_ble_bonding_key(bt_bdaddr_t *remote_bd_addr,
+                                             UINT8 key_type,
+                                             char *key_value,
+                                             int key_length);
+
+bt_status_t btif_storage_add_ble_local_key(char *key,
+                                           uint8_t key_type,
+                                           uint8_t key_length);
+bt_status_t btif_storage_remove_ble_bonding_keys(bt_bdaddr_t *remote_bd_addr);
+bt_status_t btif_storage_remove_ble_local_keys(void);
+bt_status_t btif_storage_get_ble_local_key(UINT8 key_type,
+                                           char *key_value,
+                                           int key_len);
+
+bt_status_t btif_storage_get_remote_addr_type(bt_bdaddr_t *remote_bd_addr,
+                                              int *addr_type);
+
+bt_status_t btif_storage_set_remote_addr_type(bt_bdaddr_t *remote_bd_addr,
+                                              UINT8 addr_type);
+
+#endif
+/*******************************************************************************
+**
+** Function         btif_storage_get_remote_version
+**
+** Description      Fetch remote version info on cached remote device
+**
+** Returns          BT_STATUS_SUCCESS if found
+**                  BT_STATUS_FAIL otherwise
+**
+*******************************************************************************/
+
+bt_status_t btif_storage_get_remote_version(const bt_bdaddr_t *remote_bd_addr,
+                                  bt_remote_version_t *p_ver);
+
+/******************************************************************************
+ * Exported for unit tests
+ *****************************************************************************/
+size_t btif_split_uuids_string(const char *str, bt_uuid_t *p_uuid, size_t max_uuids);
+
+#endif /* BTIF_STORAGE_H */
diff --git a/rtkbt/code/bt/btif/include/btif_uid.h b/rtkbt/code/bt/btif/include/btif_uid.h
new file mode 100755
index 0000000..35faedb
--- /dev/null
+++ b/rtkbt/code/bt/btif/include/btif_uid.h
@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include "bt_common.h"
+
+#include <hardware/bluetooth.h>
+
+struct uid_set_t;
+typedef struct uid_set_t uid_set_t;
+
+/**
+ * Creates a UID set to keep track of traffic per UID.
+ * Caller is responsible for destroying this object via uid_set_destroy().
+ */
+uid_set_t* uid_set_create();
+
+void uid_set_destroy(uid_set_t* set);
+
+void uid_set_add_tx(uid_set_t* set, int32_t app_uid, uint64_t bytes);
+void uid_set_add_rx(uid_set_t* set, int32_t app_uid, uint64_t bytes);
+
+/**
+ * Returns an array of bt_uid_traffic_t structs, where the end of the array
+ * is signaled by an element with app_uid == -1.
+ *
+ * The caller is responsible for calling osi_free() on the returned array.
+ */
+bt_uid_traffic_t* uid_set_read_and_clear(uid_set_t* set);
diff --git a/rtkbt/code/bt/btif/include/btif_util.h b/rtkbt/code/bt/btif/include/btif_util.h
new file mode 100755
index 0000000..cccaea1
--- /dev/null
+++ b/rtkbt/code/bt/btif/include/btif_util.h
@@ -0,0 +1,78 @@
+/******************************************************************************
+ *
+ *  Copyright (c) 2014 The Android Open Source Project
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#ifndef BTIF_UTIL_H
+#define BTIF_UTIL_H
+
+#include <hardware/bluetooth.h>
+#include <hardware/bt_hf.h>
+#include <stdbool.h>
+#include <sys/time.h>
+
+#include "bt_types.h"
+#include "bt_utils.h"
+
+/*******************************************************************************
+**  Constants & Macros
+********************************************************************************/
+
+#define CASE_RETURN_STR(const) case const: return #const;
+
+
+/*******************************************************************************
+**  Type definitions for callback functions
+********************************************************************************/
+
+/*******************************************************************************
+**  Functions
+********************************************************************************/
+
+const char* dump_bt_status(bt_status_t status);
+const char* dump_dm_search_event(UINT16 event);
+const char* dump_dm_event(UINT16 event);
+const char* dump_hf_event(UINT16 event);
+const char* dump_hf_client_event(UINT16 event);
+const char* dump_hh_event(UINT16 event);
+const char* dump_hf_conn_state(UINT16 event);
+const char* dump_hf_call_state(bthf_call_state_t call_state);
+const char* dump_property_type(bt_property_type_t type);
+const char* dump_hf_audio_state(UINT16 event);
+const char* dump_adapter_scan_mode(bt_scan_mode_t mode);
+const char* dump_thread_evt(bt_cb_thread_evt evt);
+const char* dump_av_conn_state(UINT16 event);
+const char* dump_av_audio_state(UINT16 event);
+const char* dump_rc_event(UINT8 event);
+const char* dump_rc_notification_event_id(UINT8 event_id);
+const char* dump_rc_pdu(UINT8 pdu);
+
+UINT32 devclass2uint(DEV_CLASS dev_class);
+void uint2devclass(UINT32 dev, DEV_CLASS dev_class);
+void uuid16_to_uuid128(uint16_t uuid16, bt_uuid_t* uuid128);
+
+// Takes a |str| containing a 128-bit GUID formatted UUID and stores the
+// result in |p_uuid|. |str| must be formatted in this format:
+//   "12345678-1234-1234-1234-123456789012"
+// |p_uuid| cannot be null. Returns true if parsing was successful, false
+// otherwise. Returns false if |str| is null.
+bool string_to_uuid(const char *str, bt_uuid_t *p_uuid);
+
+void uuid_to_string_legacy(bt_uuid_t *p_uuid, char *str);
+int ascii_2_hex (const char *p_ascii, int len, UINT8 *p_hex);
+
+#endif /* BTIF_UTIL_H */
diff --git a/rtkbt/code/bt/btif/include/stack_manager.h b/rtkbt/code/bt/btif/include/stack_manager.h
new file mode 100755
index 0000000..97fd02f
--- /dev/null
+++ b/rtkbt/code/bt/btif/include/stack_manager.h
@@ -0,0 +1,37 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+#include <stdbool.h>
+
+#include "osi/include/future.h"
+
+typedef struct {
+  void (*init_stack)(void);
+  void (*start_up_stack_async)(void);
+  void (*shut_down_stack_async)(void);
+  void (*clean_up_stack)(void);
+
+  bool (*get_stack_is_running)(void);
+} stack_manager_t;
+
+const stack_manager_t *stack_manager_get_interface();
+
+// TODO(zachoverflow): remove this terrible hack once the startup sequence is more sane
+future_t *stack_manager_get_hack_future();
diff --git a/rtkbt/code/bt/btif/include/uinput.h b/rtkbt/code/bt/btif/include/uinput.h
new file mode 100755
index 0000000..9a25e4b
--- /dev/null
+++ b/rtkbt/code/bt/btif/include/uinput.h
@@ -0,0 +1,591 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#ifndef __UINPUT_H
+#define __UINPUT_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+#include <sys/time.h>
+#include <sys/ioctl.h>
+
+/*******************************************************************************
+**  Constants & Macros
+********************************************************************************/
+
+/* Events */
+
+#define EV_SYN          0x00
+#define EV_KEY          0x01
+#define EV_REL          0x02
+#define EV_ABS          0x03
+#define EV_MSC          0x04
+#define EV_LED          0x11
+#define EV_SND          0x12
+#define EV_REP          0x14
+#define EV_FF           0x15
+#define EV_PWR          0x16
+#define EV_FF_STATUS        0x17
+#define EV_MAX          0x1f
+
+/* Synchronization events */
+
+#define SYN_REPORT      0
+#define SYN_CONFIG      1
+
+/* Keys and buttons */
+
+#define KEY_RESERVED        0
+#define KEY_ESC         1
+#define KEY_1           2
+#define KEY_2           3
+#define KEY_3           4
+#define KEY_4           5
+#define KEY_5           6
+#define KEY_6           7
+#define KEY_7           8
+#define KEY_8           9
+#define KEY_9           10
+#define KEY_0           11
+#define KEY_MINUS       12
+#define KEY_EQUAL       13
+#define KEY_BACKSPACE       14
+#define KEY_TAB         15
+#define KEY_Q           16
+#define KEY_W           17
+#define KEY_E           18
+#define KEY_R           19
+#define KEY_T           20
+#define KEY_Y           21
+#define KEY_U           22
+#define KEY_I           23
+#define KEY_O           24
+#define KEY_P           25
+#define KEY_LEFTBRACE       26
+#define KEY_RIGHTBRACE      27
+#define KEY_ENTER       28
+#define KEY_LEFTCTRL        29
+#define KEY_A           30
+#define KEY_S           31
+#define KEY_D           32
+#define KEY_F           33
+#define KEY_G           34
+#define KEY_H           35
+#define KEY_J           36
+#define KEY_K           37
+#define KEY_L           38
+#define KEY_SEMICOLON       39
+#define KEY_APOSTROPHE      40
+#define KEY_GRAVE       41
+#define KEY_LEFTSHIFT       42
+#define KEY_BACKSLASH       43
+#define KEY_Z           44
+#define KEY_X           45
+#define KEY_C           46
+#define KEY_V           47
+#define KEY_B           48
+#define KEY_N           49
+#define KEY_M           50
+#define KEY_COMMA       51
+#define KEY_DOT         52
+#define KEY_SLASH       53
+#define KEY_RIGHTSHIFT      54
+#define KEY_KPASTERISK      55
+#define KEY_LEFTALT     56
+#define KEY_SPACE       57
+#define KEY_CAPSLOCK        58
+#define KEY_F1          59
+#define KEY_F2          60
+#define KEY_F3          61
+#define KEY_F4          62
+#define KEY_F5          63
+#define KEY_F6          64
+#define KEY_F7          65
+#define KEY_F8          66
+#define KEY_F9          67
+#define KEY_F10         68
+#define KEY_NUMLOCK     69
+#define KEY_SCROLLLOCK      70
+#define KEY_KP7         71
+#define KEY_KP8         72
+#define KEY_KP9         73
+#define KEY_KPMINUS     74
+#define KEY_KP4         75
+#define KEY_KP5         76
+#define KEY_KP6         77
+#define KEY_KPPLUS      78
+#define KEY_KP1         79
+#define KEY_KP2         80
+#define KEY_KP3         81
+#define KEY_KP0         82
+#define KEY_KPDOT       83
+#define KEY_103RD       84
+#define KEY_F13         85
+#define KEY_102ND       86
+#define KEY_F11         87
+#define KEY_F12         88
+#define KEY_F14         89
+#define KEY_F15         90
+#define KEY_F16         91
+#define KEY_F17         92
+#define KEY_F18         93
+#define KEY_F19         94
+#define KEY_F20         95
+#define KEY_KPENTER     96
+#define KEY_RIGHTCTRL       97
+#define KEY_KPSLASH     98
+#define KEY_SYSRQ       99
+#define KEY_RIGHTALT        100
+#define KEY_LINEFEED        101
+#define KEY_HOME        102
+#define KEY_UP          103
+#define KEY_PAGEUP      104
+#define KEY_LEFT        105
+#define KEY_RIGHT       106
+#define KEY_END         107
+#define KEY_DOWN        108
+#define KEY_PAGEDOWN        109
+#define KEY_INSERT      110
+#define KEY_DELETE      111
+#define KEY_MACRO       112
+#define KEY_MUTE        113
+#define KEY_VOLUMEDOWN      114
+#define KEY_VOLUMEUP        115
+#define KEY_POWER       116
+#define KEY_KPEQUAL     117
+#define KEY_KPPLUSMINUS     118
+#define KEY_PAUSE       119
+#define KEY_F21         120
+#define KEY_F22         121
+#define KEY_F23         122
+#define KEY_F24         123
+#define KEY_KPCOMMA     124
+#define KEY_LEFTMETA        125
+#define KEY_RIGHTMETA       126
+#define KEY_COMPOSE     127
+
+#define KEY_STOP        128
+#define KEY_AGAIN       129
+#define KEY_PROPS       130
+#define KEY_UNDO        131
+#define KEY_FRONT       132
+#define KEY_COPY        133
+#define KEY_OPEN        134
+#define KEY_PASTE       135
+#define KEY_FIND        136
+#define KEY_CUT         137
+#define KEY_HELP        138
+#define KEY_MENU        139
+#define KEY_CALC        140
+#define KEY_SETUP       141
+#define KEY_SLEEP       142
+#define KEY_WAKEUP      143
+#define KEY_FILE        144
+#define KEY_SENDFILE        145
+#define KEY_DELETEFILE      146
+#define KEY_XFER        147
+#define KEY_PROG1       148
+#define KEY_PROG2       149
+#define KEY_WWW         150
+#define KEY_MSDOS       151
+#define KEY_COFFEE      152
+#define KEY_DIRECTION       153
+#define KEY_CYCLEWINDOWS    154
+#define KEY_MAIL        155
+#define KEY_BOOKMARKS       156
+#define KEY_COMPUTER        157
+#define KEY_BACK        158
+#define KEY_FORWARD     159
+#define KEY_CLOSECD     160
+#define KEY_EJECTCD     161
+#define KEY_EJECTCLOSECD    162
+#define KEY_NEXTSONG        163
+#define KEY_PLAYPAUSE       164
+#define KEY_PREVIOUSSONG    165
+#define KEY_STOPCD      166
+#define KEY_RECORD      167
+#define KEY_REWIND      168
+#define KEY_PHONE       169
+#define KEY_ISO         170
+#define KEY_CONFIG      171
+#define KEY_HOMEPAGE        172
+#define KEY_REFRESH     173
+#define KEY_EXIT        174
+#define KEY_MOVE        175
+#define KEY_EDIT        176
+#define KEY_SCROLLUP        177
+#define KEY_SCROLLDOWN      178
+#define KEY_KPLEFTPAREN     179
+#define KEY_KPRIGHTPAREN    180
+
+#define KEY_INTL1       181
+#define KEY_INTL2       182
+#define KEY_INTL3       183
+#define KEY_INTL4       184
+#define KEY_INTL5       185
+#define KEY_INTL6       186
+#define KEY_INTL7       187
+#define KEY_INTL8       188
+#define KEY_INTL9       189
+#define KEY_LANG1       190
+#define KEY_LANG2       191
+#define KEY_LANG3       192
+#define KEY_LANG4       193
+#define KEY_LANG5       194
+#define KEY_LANG6       195
+#define KEY_LANG7       196
+#define KEY_LANG8       197
+#define KEY_LANG9       198
+
+#define KEY_PLAYCD      200
+#define KEY_PAUSECD     201
+#define KEY_PROG3       202
+#define KEY_PROG4       203
+#define KEY_SUSPEND     205
+#define KEY_CLOSE       206
+#define KEY_PLAY        207
+#define KEY_FAST_FORWARD  208
+
+#define KEY_UNKNOWN     220
+
+#define KEY_BRIGHTNESSDOWN  224
+#define KEY_BRIGHTNESSUP    225
+
+#define BTN_MISC        0x100
+#define BTN_0           0x100
+#define BTN_1           0x101
+#define BTN_2           0x102
+#define BTN_3           0x103
+#define BTN_4           0x104
+#define BTN_5           0x105
+#define BTN_6           0x106
+#define BTN_7           0x107
+#define BTN_8           0x108
+#define BTN_9           0x109
+
+#define BTN_MOUSE       0x110
+#define BTN_LEFT        0x110
+#define BTN_RIGHT       0x111
+#define BTN_MIDDLE      0x112
+#define BTN_SIDE        0x113
+#define BTN_EXTRA       0x114
+#define BTN_FORWARD     0x115
+#define BTN_BACK        0x116
+#define BTN_TASK        0x117
+
+#define BTN_JOYSTICK        0x120
+#define BTN_TRIGGER     0x120
+#define BTN_THUMB       0x121
+#define BTN_THUMB2      0x122
+#define BTN_TOP         0x123
+#define BTN_TOP2        0x124
+#define BTN_PINKIE      0x125
+#define BTN_BASE        0x126
+#define BTN_BASE2       0x127
+#define BTN_BASE3       0x128
+#define BTN_BASE4       0x129
+#define BTN_BASE5       0x12a
+#define BTN_BASE6       0x12b
+#define BTN_DEAD        0x12f
+
+#define BTN_GAMEPAD     0x130
+#define BTN_A           0x130
+#define BTN_B           0x131
+#define BTN_C           0x132
+#define BTN_X           0x133
+#define BTN_Y           0x134
+#define BTN_Z           0x135
+#define BTN_TL          0x136
+#define BTN_TR          0x137
+#define BTN_TL2         0x138
+#define BTN_TR2         0x139
+#define BTN_SELECT      0x13a
+#define BTN_START       0x13b
+#define BTN_MODE        0x13c
+#define BTN_THUMBL      0x13d
+#define BTN_THUMBR      0x13e
+
+#define BTN_DIGI        0x140
+#define BTN_TOOL_PEN        0x140
+#define BTN_TOOL_RUBBER     0x141
+#define BTN_TOOL_BRUSH      0x142
+#define BTN_TOOL_PENCIL     0x143
+#define BTN_TOOL_AIRBRUSH   0x144
+#define BTN_TOOL_FINGER     0x145
+#define BTN_TOOL_MOUSE      0x146
+#define BTN_TOOL_LENS       0x147
+#define BTN_TOUCH       0x14a
+#define BTN_STYLUS      0x14b
+#define BTN_STYLUS2     0x14c
+#define BTN_TOOL_DOUBLETAP  0x14d
+#define BTN_TOOL_TRIPLETAP  0x14e
+
+#define BTN_WHEEL       0x150
+#define BTN_GEAR_DOWN       0x150
+#define BTN_GEAR_UP     0x151
+
+#define KEY_OK          0x160
+#define KEY_SELECT      0x161
+#define KEY_GOTO        0x162
+#define KEY_CLEAR       0x163
+#define KEY_POWER2      0x164
+#define KEY_OPTION      0x165
+#define KEY_INFO        0x166
+#define KEY_TIME        0x167
+#define KEY_VENDOR      0x168
+#define KEY_ARCHIVE     0x169
+#define KEY_PROGRAM     0x16a
+#define KEY_CHANNEL     0x16b
+#define KEY_FAVORITES       0x16c
+#define KEY_EPG         0x16d
+#define KEY_PVR         0x16e
+#define KEY_MHP         0x16f
+#define KEY_LANGUAGE        0x170
+#define KEY_TITLE       0x171
+#define KEY_SUBTITLE        0x172
+#define KEY_ANGLE       0x173
+#define KEY_ZOOM        0x174
+#define KEY_MODE        0x175
+#define KEY_KEYBOARD        0x176
+#define KEY_SCREEN      0x177
+#define KEY_PC          0x178
+#define KEY_TV          0x179
+#define KEY_TV2         0x17a
+#define KEY_VCR         0x17b
+#define KEY_VCR2        0x17c
+#define KEY_SAT         0x17d
+#define KEY_SAT2        0x17e
+#define KEY_CD          0x17f
+#define KEY_TAPE        0x180
+#define KEY_RADIO       0x181
+#define KEY_TUNER       0x182
+#define KEY_PLAYER      0x183
+#define KEY_TEXT        0x184
+#define KEY_DVD         0x185
+#define KEY_AUX         0x186
+#define KEY_MP3         0x187
+#define KEY_AUDIO       0x188
+#define KEY_VIDEO       0x189
+#define KEY_DIRECTORY       0x18a
+#define KEY_LIST        0x18b
+#define KEY_MEMO        0x18c
+#define KEY_CALENDAR        0x18d
+#define KEY_RED         0x18e
+#define KEY_GREEN       0x18f
+#define KEY_YELLOW      0x190
+#define KEY_BLUE        0x191
+#define KEY_CHANNELUP       0x192
+#define KEY_CHANNELDOWN     0x193
+#define KEY_FIRST       0x194
+#define KEY_LAST        0x195
+#define KEY_AB          0x196
+#define KEY_NEXT        0x197
+#define KEY_RESTART     0x198
+#define KEY_SLOW        0x199
+#define KEY_SHUFFLE     0x19a
+#define KEY_BREAK       0x19b
+#define KEY_PREVIOUS        0x19c
+#define KEY_DIGITS      0x19d
+#define KEY_TEEN        0x19e
+#define KEY_TWEN        0x19f
+
+#define KEY_FRAMEBACK       0x1b2
+#define KEY_FRAMEFORWARD    0x1b3
+#define KEY_CONTEXT_MENU    0x1fb
+
+#define KEY_MAX         0x1ff
+
+/* Relative axes */
+
+#define REL_X           0x00
+#define REL_Y           0x01
+#define REL_Z           0x02
+#define REL_RX          0x03
+#define REL_RY          0x04
+#define REL_RZ          0x05
+#define REL_HWHEEL      0x06
+#define REL_DIAL        0x07
+#define REL_WHEEL       0x08
+#define REL_MISC        0x09
+#define REL_MAX         0x0f
+
+/* Absolute axes */
+
+#define ABS_X           0x00
+#define ABS_Y           0x01
+#define ABS_Z           0x02
+#define ABS_RX          0x03
+#define ABS_RY          0x04
+#define ABS_RZ          0x05
+#define ABS_THROTTLE        0x06
+#define ABS_RUDDER      0x07
+#define ABS_WHEEL       0x08
+#define ABS_GAS         0x09
+#define ABS_BRAKE       0x0a
+#define ABS_HAT0X       0x10
+#define ABS_HAT0Y       0x11
+#define ABS_HAT1X       0x12
+#define ABS_HAT1Y       0x13
+#define ABS_HAT2X       0x14
+#define ABS_HAT2Y       0x15
+#define ABS_HAT3X       0x16
+#define ABS_HAT3Y       0x17
+#define ABS_PRESSURE        0x18
+#define ABS_DISTANCE        0x19
+#define ABS_TILT_X      0x1a
+#define ABS_TILT_Y      0x1b
+#define ABS_TOOL_WIDTH      0x1c
+#define ABS_VOLUME      0x20
+#define ABS_MISC        0x28
+#define ABS_MAX         0x3f
+
+/* Switch events */
+
+#define SW_0            0x00
+#define SW_1            0x01
+#define SW_2            0x02
+#define SW_3            0x03
+#define SW_4            0x04
+#define SW_5            0x05
+#define SW_6            0x06
+#define SW_7            0x07
+#define SW_MAX          0x0f
+
+/* Misc events */
+
+#define MSC_SERIAL      0x00
+#define MSC_PULSELED        0x01
+#define MSC_GESTURE     0x02
+#define MSC_RAW         0x03
+#define MSC_SCAN        0x04
+#define MSC_MAX         0x07
+
+/* LEDs */
+
+#define LED_NUML        0x00
+#define LED_CAPSL       0x01
+#define LED_SCROLLL     0x02
+#define LED_COMPOSE     0x03
+#define LED_KANA        0x04
+#define LED_SLEEP       0x05
+#define LED_SUSPEND     0x06
+#define LED_MUTE        0x07
+#define LED_MISC        0x08
+#define LED_MAIL        0x09
+#define LED_CHARGING        0x0a
+#define LED_MAX         0x0f
+
+/* Autorepeat values */
+
+#define REP_DELAY       0x00
+#define REP_PERIOD      0x01
+#define REP_MAX         0x01
+
+/* Sounds */
+
+#define SND_CLICK       0x00
+#define SND_BELL        0x01
+#define SND_TONE        0x02
+#define SND_MAX         0x07
+
+/* Identifiers */
+
+#define ID_BUS          0
+#define ID_VENDOR       1
+#define ID_PRODUCT      2
+#define ID_VERSION      3
+
+#define BUS_PCI         0x01
+#define BUS_ISAPNP      0x02
+#define BUS_USB         0x03
+#define BUS_HIL         0x04
+#define BUS_BLUETOOTH       0x05
+
+#define BUS_ISA         0x10
+#define BUS_I8042       0x11
+#define BUS_XTKBD       0x12
+#define BUS_RS232       0x13
+#define BUS_GAMEPORT        0x14
+#define BUS_PARPORT     0x15
+#define BUS_AMIGA       0x16
+#define BUS_ADB         0x17
+#define BUS_I2C         0x18
+#define BUS_HOST        0x19
+#define BUS_GSC         0x1A
+
+/* User input interface */
+
+#define UINPUT_IOCTL_BASE   'U'
+
+#define UI_DEV_CREATE       _IO(UINPUT_IOCTL_BASE, 1)
+#define UI_DEV_DESTROY      _IO(UINPUT_IOCTL_BASE, 2)
+
+#define UI_SET_EVBIT        _IOW(UINPUT_IOCTL_BASE, 100, int)
+#define UI_SET_KEYBIT       _IOW(UINPUT_IOCTL_BASE, 101, int)
+#define UI_SET_RELBIT       _IOW(UINPUT_IOCTL_BASE, 102, int)
+#define UI_SET_ABSBIT       _IOW(UINPUT_IOCTL_BASE, 103, int)
+#define UI_SET_MSCBIT       _IOW(UINPUT_IOCTL_BASE, 104, int)
+#define UI_SET_LEDBIT       _IOW(UINPUT_IOCTL_BASE, 105, int)
+#define UI_SET_SNDBIT       _IOW(UINPUT_IOCTL_BASE, 106, int)
+#define UI_SET_FFBIT        _IOW(UINPUT_IOCTL_BASE, 107, int)
+#define UI_SET_PHYS     _IOW(UINPUT_IOCTL_BASE, 108, char*)
+#define UI_SET_SWBIT        _IOW(UINPUT_IOCTL_BASE, 109, int)
+
+#ifndef NBITS
+#define NBITS(x) ((((x) - 1) / (sizeof(long) * 8)) + 1)
+#endif
+
+#define UINPUT_MAX_NAME_SIZE    80
+
+
+/*******************************************************************************
+**  Type definitions and return values
+********************************************************************************/
+
+struct uinput_id {
+    uint16_t bustype;
+    uint16_t vendor;
+    uint16_t product;
+    uint16_t version;
+};
+
+struct uinput_dev {
+    char name[UINPUT_MAX_NAME_SIZE];
+    struct uinput_id id;
+    int ff_effects_max;
+    int absmax[ABS_MAX + 1];
+    int absmin[ABS_MAX + 1];
+    int absfuzz[ABS_MAX + 1];
+    int absflat[ABS_MAX + 1];
+};
+
+struct uinput_event {
+    struct timeval time;
+    uint16_t type;
+    uint16_t code;
+    int32_t value;
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __UINPUT_H */
diff --git a/rtkbt/code/bt/btif/src/bluetooth.c b/rtkbt/code/bt/btif/src/bluetooth.c
new file mode 100755
index 0000000..840b05c
--- /dev/null
+++ b/rtkbt/code/bt/btif/src/bluetooth.c
@@ -0,0 +1,606 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/************************************************************************************
+ *
+ *  Filename:      bluetooth.c
+ *
+ *  Description:   Bluetooth HAL implementation
+ *
+ ***********************************************************************************/
+
+#define LOG_TAG "bt_btif"
+
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <hardware/bluetooth.h>
+#include <hardware/bt_av.h>
+#include <hardware/bt_gatt.h>
+#include <hardware/bt_hf.h>
+#include <hardware/bt_hf_client.h>
+#include <hardware/bt_hh.h>
+#include <hardware/bt_hl.h>
+#include <hardware/bt_mce.h>
+#include <hardware/bt_pan.h>
+#include <hardware/bt_rc.h>
+#include <hardware/bt_sdp.h>
+#include <hardware/bt_sock.h>
+
+#include "bt_utils.h"
+#include "btif_api.h"
+#include "btif_debug.h"
+#include "btsnoop.h"
+#include "btsnoop_mem.h"
+#include "device/include/interop.h"
+#include "osi/include/allocation_tracker.h"
+#include "osi/include/alarm.h"
+#include "osi/include/log.h"
+#include "osi/include/metrics.h"
+#include "osi/include/osi.h"
+#include "osi/include/wakelock.h"
+#include "stack_manager.h"
+#include "btif_config.h"
+#include "btif_storage.h"
+#include "btif/include/btif_debug_btsnoop.h"
+#include "btif/include/btif_debug_conn.h"
+#include "btif/include/btif_media.h"
+#ifdef BLUETOOTH_RTK_API
+#include <hardware/bt_rtkbt.h>
+#endif
+/************************************************************************************
+**  Static variables
+************************************************************************************/
+
+bt_callbacks_t *bt_hal_cbacks = NULL;
+bool restricted_mode = FALSE;
+
+/************************************************************************************
+**  Externs
+************************************************************************************/
+
+/* list all extended interfaces here */
+#ifdef BLUETOOTH_RTK_API
+extern volatile BOOLEAN uipc_inited;
+#endif
+/* handsfree profile */
+extern bthf_interface_t *btif_hf_get_interface();
+/* handsfree profile - client */
+extern bthf_client_interface_t *btif_hf_client_get_interface();
+/* advanced audio profile */
+extern btav_interface_t *btif_av_get_src_interface();
+extern btav_interface_t *btif_av_get_sink_interface();
+/*rfc l2cap*/
+extern btsock_interface_t *btif_sock_get_interface();
+/* hid host profile */
+extern bthh_interface_t *btif_hh_get_interface();
+/* health device profile */
+extern bthl_interface_t *btif_hl_get_interface();
+/*pan*/
+extern btpan_interface_t *btif_pan_get_interface();
+/*map client*/
+extern btmce_interface_t *btif_mce_get_interface();
+#if BLE_INCLUDED == TRUE
+/* gatt */
+extern btgatt_interface_t *btif_gatt_get_interface();
+#endif
+/* avrc target */
+extern btrc_interface_t *btif_rc_get_interface();
+/* avrc controller */
+extern btrc_interface_t *btif_rc_ctrl_get_interface();
+/*SDP search client*/
+extern btsdp_interface_t *btif_sdp_get_interface();
+#ifdef BLUETOOTH_RTK_API
+extern rtkbt_interface_t *btif_rtkbt_get_interface();
+#endif
+
+/************************************************************************************
+**  Functions
+************************************************************************************/
+
+static bool interface_ready(void) {
+  return bt_hal_cbacks != NULL;
+}
+
+static bool is_profile(const char *p1, const char *p2) {
+  assert(p1);
+  assert(p2);
+  return strlen(p1) == strlen(p2) && strncmp(p1, p2, strlen(p2)) == 0;
+}
+
+/*****************************************************************************
+**
+**   BLUETOOTH HAL INTERFACE FUNCTIONS
+**
+*****************************************************************************/
+
+static int init(bt_callbacks_t *callbacks) {
+  LOG_INFO(LOG_TAG, "%s", __func__);
+
+  if (interface_ready())
+    return BT_STATUS_DONE;
+
+#ifdef BLUEDROID_DEBUG
+  allocation_tracker_init();
+#endif
+
+  bt_hal_cbacks = callbacks;
+  stack_manager_get_interface()->init_stack();
+  btif_debug_init();
+#ifdef BLUETOOTH_RTK_API
+  uipc_inited = FALSE;
+#endif
+  return BT_STATUS_SUCCESS;
+}
+
+static int enable(bool start_restricted) {
+  LOG_INFO(LOG_TAG, "%s: start restricted = %d", __func__, start_restricted);
+
+  restricted_mode = start_restricted;
+
+  if (!interface_ready())
+    return BT_STATUS_NOT_READY;
+
+  stack_manager_get_interface()->start_up_stack_async();
+  return BT_STATUS_SUCCESS;
+}
+
+static int disable(void) {
+  if (!interface_ready())
+    return BT_STATUS_NOT_READY;
+
+  stack_manager_get_interface()->shut_down_stack_async();
+  return BT_STATUS_SUCCESS;
+}
+
+static void cleanup(void) {
+  stack_manager_get_interface()->clean_up_stack();
+}
+
+bool is_restricted_mode() {
+  return restricted_mode;
+}
+
+static int get_adapter_properties(void)
+{
+    /* sanity check */
+    if (interface_ready() == FALSE)
+        return BT_STATUS_NOT_READY;
+
+    return btif_get_adapter_properties();
+}
+
+static int get_adapter_property(bt_property_type_t type)
+{
+    /* sanity check */
+    if (interface_ready() == FALSE)
+        return BT_STATUS_NOT_READY;
+
+    return btif_get_adapter_property(type);
+}
+
+static int set_adapter_property(const bt_property_t *property)
+{
+    /* sanity check */
+    if (interface_ready() == FALSE)
+        return BT_STATUS_NOT_READY;
+
+    return btif_set_adapter_property(property);
+}
+
+int get_remote_device_properties(bt_bdaddr_t *remote_addr)
+{
+    /* sanity check */
+    if (interface_ready() == FALSE)
+        return BT_STATUS_NOT_READY;
+
+    return btif_get_remote_device_properties(remote_addr);
+}
+
+int get_remote_device_property(bt_bdaddr_t *remote_addr, bt_property_type_t type)
+{
+    /* sanity check */
+    if (interface_ready() == FALSE)
+        return BT_STATUS_NOT_READY;
+
+    return btif_get_remote_device_property(remote_addr, type);
+}
+
+int set_remote_device_property(bt_bdaddr_t *remote_addr, const bt_property_t *property)
+{
+    /* sanity check */
+    if (interface_ready() == FALSE)
+        return BT_STATUS_NOT_READY;
+
+    return btif_set_remote_device_property(remote_addr, property);
+}
+
+int get_remote_service_record(bt_bdaddr_t *remote_addr, bt_uuid_t *uuid)
+{
+    /* sanity check */
+    if (interface_ready() == FALSE)
+        return BT_STATUS_NOT_READY;
+
+    return btif_get_remote_service_record(remote_addr, uuid);
+}
+
+int get_remote_services(bt_bdaddr_t *remote_addr)
+{
+    /* sanity check */
+    if (interface_ready() == FALSE)
+        return BT_STATUS_NOT_READY;
+
+    return btif_dm_get_remote_services(remote_addr);
+}
+
+static int start_discovery(void)
+{
+    /* sanity check */
+    if (interface_ready() == FALSE)
+        return BT_STATUS_NOT_READY;
+
+    return btif_dm_start_discovery();
+}
+
+static int cancel_discovery(void)
+{
+    /* sanity check */
+    if (interface_ready() == FALSE)
+        return BT_STATUS_NOT_READY;
+
+    return btif_dm_cancel_discovery();
+}
+
+static int create_bond(const bt_bdaddr_t *bd_addr, int transport)
+{
+    /* sanity check */
+    if (interface_ready() == FALSE)
+        return BT_STATUS_NOT_READY;
+
+    return btif_dm_create_bond(bd_addr, transport);
+}
+
+static int create_bond_out_of_band(const bt_bdaddr_t *bd_addr, int transport,
+                                   const bt_out_of_band_data_t *oob_data)
+{
+    /* sanity check */
+    if (interface_ready() == FALSE)
+        return BT_STATUS_NOT_READY;
+
+    return btif_dm_create_bond_out_of_band(bd_addr, transport, oob_data);
+}
+
+static int cancel_bond(const bt_bdaddr_t *bd_addr)
+{
+    /* sanity check */
+    if (interface_ready() == FALSE)
+        return BT_STATUS_NOT_READY;
+
+    return btif_dm_cancel_bond(bd_addr);
+}
+
+static int remove_bond(const bt_bdaddr_t *bd_addr)
+{
+    if (is_restricted_mode() && !btif_storage_is_restricted_device(bd_addr))
+        return BT_STATUS_SUCCESS;
+
+    /* sanity check */
+    if (interface_ready() == FALSE)
+        return BT_STATUS_NOT_READY;
+
+    return btif_dm_remove_bond(bd_addr);
+}
+
+static int get_connection_state(const bt_bdaddr_t *bd_addr)
+{
+    /* sanity check */
+    if (interface_ready() == FALSE)
+        return 0;
+
+    return btif_dm_get_connection_state(bd_addr);
+}
+
+static int pin_reply(const bt_bdaddr_t *bd_addr, uint8_t accept,
+                 uint8_t pin_len, bt_pin_code_t *pin_code)
+{
+    /* sanity check */
+    if (interface_ready() == FALSE)
+        return BT_STATUS_NOT_READY;
+
+    return btif_dm_pin_reply(bd_addr, accept, pin_len, pin_code);
+}
+
+static int ssp_reply(const bt_bdaddr_t *bd_addr, bt_ssp_variant_t variant,
+                       uint8_t accept, uint32_t passkey)
+{
+    /* sanity check */
+    if (interface_ready() == FALSE)
+        return BT_STATUS_NOT_READY;
+
+    return btif_dm_ssp_reply(bd_addr, variant, accept, passkey);
+}
+
+static int read_energy_info()
+{
+    if (interface_ready() == FALSE)
+        return BT_STATUS_NOT_READY;
+    btif_dm_read_energy_info();
+    return BT_STATUS_SUCCESS;
+}
+
+static void dump(int fd, const char **arguments)
+{
+    if (arguments != NULL && arguments[0] != NULL) {
+      if (strncmp(arguments[0], "--proto-text", 12) == 0) {
+        btif_update_a2dp_metrics();
+        metrics_print(fd, true);
+        return;
+      }
+      if (strncmp(arguments[0], "--proto-bin", 11) == 0) {
+        btif_update_a2dp_metrics();
+        metrics_write(fd, true);
+        return;
+      }
+    }
+    btif_debug_conn_dump(fd);
+    btif_debug_bond_event_dump(fd);
+    btif_debug_a2dp_dump(fd);
+    btif_debug_config_dump(fd);
+    wakelock_debug_dump(fd);
+    alarm_debug_dump(fd);
+#if defined(BTSNOOP_MEM) && (BTSNOOP_MEM == TRUE)
+    btif_debug_btsnoop_dump(fd);
+#endif
+
+    close(fd);
+}
+
+static const void* get_profile_interface (const char *profile_id)
+{
+    LOG_INFO(LOG_TAG, "get_profile_interface %s", profile_id);
+
+    /* sanity check */
+    if (interface_ready() == FALSE)
+        return NULL;
+
+    /* check for supported profile interfaces */
+    if (is_profile(profile_id, BT_PROFILE_HANDSFREE_ID))
+        return btif_hf_get_interface();
+
+    if (is_profile(profile_id, BT_PROFILE_HANDSFREE_CLIENT_ID))
+        return btif_hf_client_get_interface();
+
+    if (is_profile(profile_id, BT_PROFILE_SOCKETS_ID))
+        return btif_sock_get_interface();
+
+    if (is_profile(profile_id, BT_PROFILE_PAN_ID))
+        return btif_pan_get_interface();
+
+    if (is_profile(profile_id, BT_PROFILE_ADVANCED_AUDIO_ID))
+        return btif_av_get_src_interface();
+
+    if (is_profile(profile_id, BT_PROFILE_ADVANCED_AUDIO_SINK_ID))
+        return btif_av_get_sink_interface();
+
+    if (is_profile(profile_id, BT_PROFILE_HIDHOST_ID))
+        return btif_hh_get_interface();
+
+    if (is_profile(profile_id, BT_PROFILE_HEALTH_ID))
+        return btif_hl_get_interface();
+
+    if (is_profile(profile_id, BT_PROFILE_SDP_CLIENT_ID))
+        return btif_sdp_get_interface();
+
+#if ( BTA_GATT_INCLUDED == TRUE && BLE_INCLUDED == TRUE)
+    if (is_profile(profile_id, BT_PROFILE_GATT_ID))
+        return btif_gatt_get_interface();
+#endif
+
+    if (is_profile(profile_id, BT_PROFILE_AV_RC_ID))
+        return btif_rc_get_interface();
+
+    if (is_profile(profile_id, BT_PROFILE_AV_RC_CTRL_ID))
+        return btif_rc_ctrl_get_interface();
+#ifdef BLUETOOTH_RTK_API
+    if (is_profile(profile_id, BT_PROFILE_RTKBT_ID))
+        return btif_rtkbt_get_interface();
+#endif
+    return NULL;
+}
+
+int dut_mode_configure(uint8_t enable)
+{
+    LOG_INFO(LOG_TAG, "dut_mode_configure");
+
+    /* sanity check */
+    if (interface_ready() == FALSE)
+        return BT_STATUS_NOT_READY;
+
+    return btif_dut_mode_configure(enable);
+}
+
+int dut_mode_send(uint16_t opcode, uint8_t* buf, uint8_t len)
+{
+    LOG_INFO(LOG_TAG, "dut_mode_send");
+
+    /* sanity check */
+    if (interface_ready() == FALSE)
+        return BT_STATUS_NOT_READY;
+
+    return btif_dut_mode_send(opcode, buf, len);
+}
+
+#if BLE_INCLUDED == TRUE
+int le_test_mode(uint16_t opcode, uint8_t* buf, uint8_t len)
+{
+    LOG_INFO(LOG_TAG, "le_test_mode");
+
+    /* sanity check */
+    if (interface_ready() == FALSE)
+        return BT_STATUS_NOT_READY;
+
+    return btif_le_test_mode(opcode, buf, len);
+}
+#endif
+
+int config_hci_snoop_log(uint8_t enable)
+{
+    LOG_INFO(LOG_TAG, "config_hci_snoop_log");
+
+    if (!interface_ready())
+        return BT_STATUS_NOT_READY;
+
+    btsnoop_get_interface()->set_api_wants_to_log(enable);
+    return BT_STATUS_SUCCESS;
+}
+
+static int set_os_callouts(bt_os_callouts_t *callouts) {
+    wakelock_set_os_callouts(callouts);
+    return BT_STATUS_SUCCESS;
+}
+
+static int config_clear(void) {
+    LOG_INFO(LOG_TAG, "%s", __func__);
+    return btif_config_clear() ? BT_STATUS_SUCCESS : BT_STATUS_FAIL;
+}
+#ifdef BLUETOOTH_RTK
+static const bt_interface_t bluetoothInterface = {
+    .size = sizeof(bluetoothInterface),
+    .init = init,
+    .enable = enable,
+    .disable = disable,
+    .cleanup = cleanup,
+    .get_adapter_properties = get_adapter_properties,
+    .get_adapter_property = get_adapter_property,
+    .set_adapter_property = set_adapter_property,
+    .get_remote_device_properties = get_remote_device_properties,
+    .get_remote_device_property = get_remote_device_property,
+    .set_remote_device_property = set_remote_device_property,
+    .get_remote_service_record = get_remote_service_record,
+    .get_remote_services = get_remote_services,
+    .start_discovery = start_discovery,
+    .cancel_discovery = cancel_discovery,
+    .create_bond = create_bond,
+    .create_bond_out_of_band = create_bond_out_of_band,
+    .remove_bond = remove_bond,
+    .cancel_bond = cancel_bond,
+    .get_connection_state = get_connection_state,
+    .pin_reply = pin_reply,
+    .ssp_reply = ssp_reply,
+    .get_profile_interface = get_profile_interface,
+    .dut_mode_configure = dut_mode_configure,
+    .dut_mode_send = dut_mode_send,
+#if BLE_INCLUDED == TRUE
+    .le_test_mode = le_test_mode,
+#else
+    .le_test_mode = NULL,
+#endif
+    .config_hci_snoop_log = config_hci_snoop_log,
+    .set_os_callouts = set_os_callouts,
+    .read_energy_info = read_energy_info,
+    .dump = dump,
+    .config_clear = config_clear,
+    .interop_database_clear = interop_database_clear,
+    .interop_database_add = interop_database_add,
+};
+#else
+static const bt_interface_t bluetoothInterface = {
+    sizeof(bluetoothInterface),
+    init,
+    enable,
+    disable,
+    cleanup,
+    get_adapter_properties,
+    get_adapter_property,
+    set_adapter_property,
+    get_remote_device_properties,
+    get_remote_device_property,
+    set_remote_device_property,
+    get_remote_service_record,
+    get_remote_services,
+    start_discovery,
+    cancel_discovery,
+    create_bond,
+    create_bond_out_of_band,
+    remove_bond,
+    cancel_bond,
+    get_connection_state,
+    pin_reply,
+    ssp_reply,
+    get_profile_interface,
+    dut_mode_configure,
+    dut_mode_send,
+#if BLE_INCLUDED == TRUE
+    le_test_mode,
+#else
+    NULL,
+#endif
+    config_hci_snoop_log,
+    set_os_callouts,
+    read_energy_info,
+    dump,
+    config_clear,
+    interop_database_clear,
+    interop_database_add,
+};
+#endif
+const bt_interface_t* bluetooth__get_bluetooth_interface ()
+{
+    /* fixme -- add property to disable bt interface ? */
+
+    return &bluetoothInterface;
+}
+
+static int close_bluetooth_stack(struct hw_device_t* device)
+{
+    UNUSED(device);
+    cleanup();
+    return 0;
+}
+
+static int open_bluetooth_stack(const struct hw_module_t *module, UNUSED_ATTR char const *name, struct hw_device_t **abstraction) {
+  static bluetooth_device_t device = {
+    .common = {
+      .tag = HARDWARE_DEVICE_TAG,
+      .version = 0,
+      .close = close_bluetooth_stack,
+    },
+    .get_bluetooth_interface = bluetooth__get_bluetooth_interface
+  };
+
+  device.common.module = (struct hw_module_t *)module;
+  *abstraction = (struct hw_device_t *)&device;
+  return 0;
+}
+
+static struct hw_module_methods_t bt_stack_module_methods = {
+    .open = open_bluetooth_stack,
+};
+
+EXPORT_SYMBOL struct hw_module_t HAL_MODULE_INFO_SYM = {
+    .tag = HARDWARE_MODULE_TAG,
+    .version_major = 1,
+    .version_minor = 0,
+    .id = BT_HARDWARE_RTK_MODULE_ID,
+    .name = "Bluetooth Stack",
+    .author = "The Android Open Source Project",
+    .methods = &bt_stack_module_methods
+};
diff --git a/rtkbt/code/bt/btif/src/btif_av.c b/rtkbt/code/bt/btif/src/btif_av.c
new file mode 100755
index 0000000..4266eaf
--- /dev/null
+++ b/rtkbt/code/bt/btif/src/btif_av.c
@@ -0,0 +1,1801 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "btif_av"
+
+#include "btif_av.h"
+
+#include <assert.h>
+#include <string.h>
+
+#include <system/audio.h>
+#include <hardware/bluetooth.h>
+#include <hardware/bt_av.h>
+
+#include "bt_utils.h"
+#include "bta_api.h"
+#include "btif_media.h"
+#include "btif_profile_queue.h"
+#include "btif_util.h"
+#include "btu.h"
+#include "bt_common.h"
+#ifdef BLUETOOTH_RTK
+#include "btif_storage.h"
+#include "uuid.h"
+#endif
+#include "osi/include/allocator.h"
+
+/*****************************************************************************
+**  Constants & Macros
+******************************************************************************/
+#define BTIF_AV_SERVICE_NAME "Advanced Audio"
+#define BTIF_AVK_SERVICE_NAME "Advanced Audio Sink"
+
+#define BTIF_TIMEOUT_AV_OPEN_ON_RC_MS  (2 * 1000)
+
+typedef enum {
+    BTIF_AV_STATE_IDLE = 0x0,
+    BTIF_AV_STATE_OPENING,
+    BTIF_AV_STATE_OPENED,
+    BTIF_AV_STATE_STARTED,
+    BTIF_AV_STATE_CLOSING
+} btif_av_state_t;
+
+/* Should not need dedicated suspend state as actual actions are no
+   different than open state. Suspend flags are needed however to prevent
+   media task from trying to restart stream during remote suspend or while
+   we are in the process of a local suspend */
+
+#define BTIF_AV_FLAG_LOCAL_SUSPEND_PENDING 0x1
+#define BTIF_AV_FLAG_REMOTE_SUSPEND        0x2
+#define BTIF_AV_FLAG_PENDING_START         0x4
+#define BTIF_AV_FLAG_PENDING_STOP          0x8
+
+/*****************************************************************************
+**  Local type definitions
+******************************************************************************/
+
+typedef struct
+{
+    tBTA_AV_HNDL bta_handle;
+    bt_bdaddr_t peer_bda;
+    btif_sm_handle_t sm_handle;
+    UINT8 flags;
+    tBTA_AV_EDR edr;
+    UINT8 peer_sep;  /* sep type of peer device */
+#ifdef BLUETOOTH_RTK
+    uint16_t uuid;
+#endif
+} btif_av_cb_t;
+
+typedef struct
+{
+    bt_bdaddr_t *target_bda;
+    uint16_t uuid;
+} btif_av_connect_req_t;
+
+typedef struct
+{
+    int sample_rate;
+    int channel_count;
+    bt_bdaddr_t peer_bd;
+} btif_av_sink_config_req_t;
+
+/*****************************************************************************
+**  Static variables
+******************************************************************************/
+static btav_callbacks_t *bt_av_src_callbacks = NULL;
+static btav_callbacks_t *bt_av_sink_callbacks = NULL;
+#ifdef BLUETOOTH_RTK
+static btif_av_cb_t btif_av_cb = {0, {{0}}, 0, 0, 0, 0,0};
+#else
+static btif_av_cb_t btif_av_cb = {0, {{0}}, 0, 0, 0, 0};
+#endif
+static alarm_t *av_open_on_rc_timer = NULL;
+
+/* both interface and media task needs to be ready to alloc incoming request */
+#define CHECK_BTAV_INIT() if (((bt_av_src_callbacks == NULL) &&(bt_av_sink_callbacks == NULL)) \
+        || (btif_av_cb.sm_handle == NULL))\
+{\
+     BTIF_TRACE_WARNING("%s: BTAV not initialized", __FUNCTION__);\
+     return BT_STATUS_NOT_READY;\
+}\
+else\
+{\
+     BTIF_TRACE_EVENT("%s", __FUNCTION__);\
+}
+
+/* Helper macro to avoid code duplication in the state machine handlers */
+#define CHECK_RC_EVENT(e, d) \
+    case BTA_AV_RC_OPEN_EVT: \
+    case BTA_AV_RC_CLOSE_EVT: \
+    case BTA_AV_REMOTE_CMD_EVT: \
+    case BTA_AV_VENDOR_CMD_EVT: \
+    case BTA_AV_META_MSG_EVT: \
+    case BTA_AV_RC_FEAT_EVT: \
+    case BTA_AV_REMOTE_RSP_EVT: \
+    { \
+         btif_rc_handler(e, d);\
+    }break; \
+
+static BOOLEAN btif_av_state_idle_handler(btif_sm_event_t event, void *data);
+static BOOLEAN btif_av_state_opening_handler(btif_sm_event_t event, void *data);
+static BOOLEAN btif_av_state_opened_handler(btif_sm_event_t event, void *data);
+static BOOLEAN btif_av_state_started_handler(btif_sm_event_t event, void *data);
+static BOOLEAN btif_av_state_closing_handler(btif_sm_event_t event, void *data);
+#ifdef BLUETOOTH_RTK
+static BOOLEAN btif_av_get_peer_role(bt_bdaddr_t *bd_addr);
+#endif
+static const btif_sm_handler_t btif_av_state_handlers[] =
+{
+    btif_av_state_idle_handler,
+    btif_av_state_opening_handler,
+    btif_av_state_opened_handler,
+    btif_av_state_started_handler,
+    btif_av_state_closing_handler
+};
+
+static void btif_av_event_free_data(btif_sm_event_t event, void *p_data);
+
+/*************************************************************************
+** Extern functions
+*************************************************************************/
+extern void btif_rc_handler(tBTA_AV_EVT event, tBTA_AV *p_data);
+extern BOOLEAN btif_rc_get_connected_peer(BD_ADDR peer_addr);
+extern UINT8 btif_rc_get_connected_peer_handle(void);
+extern void btif_rc_check_handle_pending_play (BD_ADDR peer_addr, BOOLEAN bSendToApp);
+
+extern fixed_queue_t *btu_general_alarm_queue;
+
+/*****************************************************************************
+** Local helper functions
+******************************************************************************/
+
+const char *dump_av_sm_state_name(btif_av_state_t state)
+{
+    switch (state)
+    {
+        CASE_RETURN_STR(BTIF_AV_STATE_IDLE)
+        CASE_RETURN_STR(BTIF_AV_STATE_OPENING)
+        CASE_RETURN_STR(BTIF_AV_STATE_OPENED)
+        CASE_RETURN_STR(BTIF_AV_STATE_STARTED)
+        CASE_RETURN_STR(BTIF_AV_STATE_CLOSING)
+        default: return "UNKNOWN_STATE";
+    }
+}
+
+const char *dump_av_sm_event_name(btif_av_sm_event_t event)
+{
+    switch((int)event)
+    {
+        CASE_RETURN_STR(BTA_AV_ENABLE_EVT)
+        CASE_RETURN_STR(BTA_AV_REGISTER_EVT)
+        CASE_RETURN_STR(BTA_AV_OPEN_EVT)
+        CASE_RETURN_STR(BTA_AV_CLOSE_EVT)
+        CASE_RETURN_STR(BTA_AV_START_EVT)
+        CASE_RETURN_STR(BTA_AV_STOP_EVT)
+        CASE_RETURN_STR(BTA_AV_PROTECT_REQ_EVT)
+        CASE_RETURN_STR(BTA_AV_PROTECT_RSP_EVT)
+        CASE_RETURN_STR(BTA_AV_RC_OPEN_EVT)
+        CASE_RETURN_STR(BTA_AV_RC_CLOSE_EVT)
+        CASE_RETURN_STR(BTA_AV_REMOTE_CMD_EVT)
+        CASE_RETURN_STR(BTA_AV_REMOTE_RSP_EVT)
+        CASE_RETURN_STR(BTA_AV_VENDOR_CMD_EVT)
+        CASE_RETURN_STR(BTA_AV_VENDOR_RSP_EVT)
+        CASE_RETURN_STR(BTA_AV_RECONFIG_EVT)
+        CASE_RETURN_STR(BTA_AV_SUSPEND_EVT)
+        CASE_RETURN_STR(BTA_AV_PENDING_EVT)
+        CASE_RETURN_STR(BTA_AV_META_MSG_EVT)
+        CASE_RETURN_STR(BTA_AV_REJECT_EVT)
+        CASE_RETURN_STR(BTA_AV_RC_FEAT_EVT)
+        CASE_RETURN_STR(BTA_AV_OFFLOAD_START_RSP_EVT)
+        CASE_RETURN_STR(BTIF_SM_ENTER_EVT)
+        CASE_RETURN_STR(BTIF_SM_EXIT_EVT)
+        CASE_RETURN_STR(BTIF_AV_CONNECT_REQ_EVT)
+        CASE_RETURN_STR(BTIF_AV_DISCONNECT_REQ_EVT)
+        CASE_RETURN_STR(BTIF_AV_START_STREAM_REQ_EVT)
+        CASE_RETURN_STR(BTIF_AV_STOP_STREAM_REQ_EVT)
+        CASE_RETURN_STR(BTIF_AV_SUSPEND_STREAM_REQ_EVT)
+        CASE_RETURN_STR(BTIF_AV_SINK_CONFIG_REQ_EVT)
+        CASE_RETURN_STR(BTIF_AV_OFFLOAD_START_REQ_EVT)
+#ifdef USE_AUDIO_TRACK
+        CASE_RETURN_STR(BTIF_AV_SINK_FOCUS_REQ_EVT)
+#endif
+        default: return "UNKNOWN_EVENT";
+   }
+}
+
+/****************************************************************************
+**  Local helper functions
+*****************************************************************************/
+/*******************************************************************************
+**
+** Function         btif_initiate_av_open_timer_timeout
+**
+** Description      Timer to trigger AV open if the remote headset establishes
+**                  RC connection w/o AV connection. The timer is needed to IOP
+**                  with headsets that do establish AV after RC connection.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btif_initiate_av_open_timer_timeout(UNUSED_ATTR void *data)
+{
+    BD_ADDR peer_addr;
+    btif_av_connect_req_t connect_req;
+
+    /* is there at least one RC connection - There should be */
+    if (btif_rc_get_connected_peer(peer_addr)) {
+       BTIF_TRACE_DEBUG("%s Issuing connect to the remote RC peer", __FUNCTION__);
+       /* In case of AVRCP connection request, we will initiate SRC connection */
+       connect_req.target_bda = (bt_bdaddr_t*)&peer_addr;
+       if(bt_av_sink_callbacks != NULL)
+           connect_req.uuid = UUID_SERVCLASS_AUDIO_SINK;
+       else if(bt_av_src_callbacks != NULL)
+           connect_req.uuid = UUID_SERVCLASS_AUDIO_SOURCE;
+       btif_sm_dispatch(btif_av_cb.sm_handle, BTIF_AV_CONNECT_REQ_EVT, (char*)&connect_req);
+    }
+    else
+    {
+        BTIF_TRACE_ERROR("%s No connected RC peers", __FUNCTION__);
+    }
+}
+
+/*****************************************************************************
+**  Static functions
+******************************************************************************/
+
+/*******************************************************************************
+**
+** Function         btif_report_connection_state
+**
+** Description      Updates the components via the callbacks about the connection
+**                  state of a2dp connection.
+**
+** Returns          None
+**
+*******************************************************************************/
+static void btif_report_connection_state(btav_connection_state_t state, bt_bdaddr_t *bd_addr)
+{
+#ifdef BLUETOOTH_RTK
+    bool peerIsSource;
+    peerIsSource = btif_av_get_peer_role(bd_addr);
+    if (bt_av_sink_callbacks != NULL && (peerIsSource == false || btif_av_cb.uuid == UUID_SERVCLASS_AUDIO_SINK)) {
+        HAL_CBACK(bt_av_sink_callbacks, connection_state_cb, state, bd_addr);
+     } else if ((bt_av_src_callbacks != NULL) && (btif_av_cb.uuid == UUID_SERVCLASS_AUDIO_SOURCE || peerIsSource == true)) {
+        HAL_CBACK(bt_av_src_callbacks, connection_state_cb, state, bd_addr);
+    }
+#else
+    if (bt_av_sink_callbacks != NULL) {
+        HAL_CBACK(bt_av_sink_callbacks, connection_state_cb, state, bd_addr);
+    } else if (bt_av_src_callbacks != NULL) {
+        HAL_CBACK(bt_av_src_callbacks, connection_state_cb, state, bd_addr);
+    }
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         btif_report_audio_state
+**
+** Description      Updates the components via the callbacks about the audio
+**                  state of a2dp connection. The state is updated when either
+**                  the remote ends starts streaming (started state) or whenever
+**                  it transitions out of started state (to opened or streaming)
+**                  state.
+**
+** Returns          None
+**
+*******************************************************************************/
+static void btif_report_audio_state(btav_audio_state_t state, bt_bdaddr_t *bd_addr)
+{
+#ifdef BLUETOOTH_RTK
+    if (btif_av_cb.peer_sep == AVDT_TSEP_SRC && bt_av_sink_callbacks != NULL) {
+        HAL_CBACK(bt_av_sink_callbacks, audio_state_cb, state, bd_addr);
+    } else if (btif_av_cb.peer_sep == AVDT_TSEP_SNK && bt_av_src_callbacks != NULL) {
+        HAL_CBACK(bt_av_src_callbacks, audio_state_cb, state, bd_addr);
+    }
+#else
+    if (bt_av_sink_callbacks != NULL) {
+        HAL_CBACK(bt_av_sink_callbacks, audio_state_cb, state, bd_addr);
+    } else if (bt_av_src_callbacks != NULL) {
+        HAL_CBACK(bt_av_src_callbacks, audio_state_cb, state, bd_addr);
+    }
+#endif
+}
+
+/*****************************************************************************
+**
+** Function     btif_av_state_idle_handler
+**
+** Description  State managing disconnected AV link
+**
+** Returns      TRUE if event was processed, FALSE otherwise
+**
+*******************************************************************************/
+
+static BOOLEAN btif_av_state_idle_handler(btif_sm_event_t event, void *p_data)
+{
+    BTIF_TRACE_DEBUG("%s event:%s flags %x", __FUNCTION__,
+                     dump_av_sm_event_name(event), btif_av_cb.flags);
+
+    switch (event)
+    {
+        case BTIF_SM_ENTER_EVT:
+            /* clear the peer_bda */
+            memset(&btif_av_cb.peer_bda, 0, sizeof(bt_bdaddr_t));
+            btif_av_cb.flags = 0;
+            btif_av_cb.edr = 0;
+            btif_a2dp_on_idle();
+            break;
+
+        case BTIF_SM_EXIT_EVT:
+            break;
+
+        case BTA_AV_ENABLE_EVT:
+            break;
+
+        case BTA_AV_REGISTER_EVT:
+            btif_av_cb.bta_handle = ((tBTA_AV*)p_data)->registr.hndl;
+            break;
+
+        case BTA_AV_PENDING_EVT:
+        case BTIF_AV_CONNECT_REQ_EVT:
+        {
+             if (event == BTIF_AV_CONNECT_REQ_EVT)
+             {
+                 memcpy(&btif_av_cb.peer_bda, ((btif_av_connect_req_t*)p_data)->target_bda,
+                                                                   sizeof(bt_bdaddr_t));
+                 BTA_AvOpen(btif_av_cb.peer_bda.address, btif_av_cb.bta_handle,
+                    TRUE, BTA_SEC_AUTHENTICATE, ((btif_av_connect_req_t*)p_data)->uuid);
+             }
+             else if (event == BTA_AV_PENDING_EVT)
+             {
+                  bdcpy(btif_av_cb.peer_bda.address, ((tBTA_AV*)p_data)->pend.bd_addr);
+                  if (bt_av_src_callbacks != NULL)
+                  {
+                      BTA_AvOpen(btif_av_cb.peer_bda.address, btif_av_cb.bta_handle,
+                        TRUE, BTA_SEC_AUTHENTICATE, UUID_SERVCLASS_AUDIO_SOURCE);
+                  }
+                  if (bt_av_sink_callbacks != NULL)
+                  {
+                      BTA_AvOpen(btif_av_cb.peer_bda.address, btif_av_cb.bta_handle,
+                                 TRUE, BTA_SEC_AUTHENTICATE, UUID_SERVCLASS_AUDIO_SINK);
+                  }
+             }
+             btif_sm_change_state(btif_av_cb.sm_handle, BTIF_AV_STATE_OPENING);
+        } break;
+
+        case BTA_AV_RC_OPEN_EVT:
+            /* IOP_FIX: Jabra 620 only does RC open without AV open whenever it connects. So
+             * as per the AV WP, an AVRC connection cannot exist without an AV connection. Therefore,
+             * we initiate an AV connection if an RC_OPEN_EVT is received when we are in AV_CLOSED state.
+             * We initiate the AV connection after a small 3s timeout to avoid any collisions from the
+             * headsets, as some headsets initiate the AVRC connection first and then
+             * immediately initiate the AV connection
+             *
+             * TODO: We may need to do this only on an AVRCP Play. FixMe
+             */
+
+            BTIF_TRACE_DEBUG("BTA_AV_RC_OPEN_EVT received w/o AV");
+            alarm_set_on_queue(av_open_on_rc_timer,
+                               BTIF_TIMEOUT_AV_OPEN_ON_RC_MS,
+                               btif_initiate_av_open_timer_timeout, NULL,
+                               btu_general_alarm_queue);
+            btif_rc_handler(event, p_data);
+            break;
+
+           /*
+            * In case Signalling channel is not down
+            * and remote started Streaming Procedure
+            * we have to handle config and open event in
+            * idle_state. We hit these scenarios while running
+            * PTS test case for AVRCP Controller
+            */
+        case BTIF_AV_SINK_CONFIG_REQ_EVT:
+        {
+            btif_av_sink_config_req_t req;
+            // copy to avoid alignment problems
+            memcpy(&req, p_data, sizeof(req));
+
+            BTIF_TRACE_WARNING("BTIF_AV_SINK_CONFIG_REQ_EVT %d %d", req.sample_rate,
+                    req.channel_count);
+            if (bt_av_sink_callbacks != NULL) {
+                HAL_CBACK(bt_av_sink_callbacks, audio_config_cb, &(req.peer_bd),
+                        req.sample_rate, req.channel_count);
+            }
+        } break;
+
+        case BTA_AV_OPEN_EVT:
+        {
+            tBTA_AV *p_bta_data = (tBTA_AV*)p_data;
+            btav_connection_state_t state;
+            btif_sm_state_t av_state;
+            BTIF_TRACE_DEBUG("status:%d, edr 0x%x",p_bta_data->open.status,
+                               p_bta_data->open.edr);
+
+            if (p_bta_data->open.status == BTA_AV_SUCCESS)
+            {
+                 state = BTAV_CONNECTION_STATE_CONNECTED;
+                 av_state = BTIF_AV_STATE_OPENED;
+                 btif_av_cb.edr = p_bta_data->open.edr;
+
+                 btif_av_cb.peer_sep = p_bta_data->open.sep;
+                 btif_a2dp_set_peer_sep(p_bta_data->open.sep);
+            }
+            else
+            {
+                BTIF_TRACE_WARNING("BTA_AV_OPEN_EVT::FAILED status: %d",
+                                     p_bta_data->open.status );
+                state = BTAV_CONNECTION_STATE_DISCONNECTED;
+                av_state  = BTIF_AV_STATE_IDLE;
+            }
+
+            /* inform the application of the event */
+            btif_report_connection_state(state, &(btif_av_cb.peer_bda));
+            /* change state to open/idle based on the status */
+            btif_sm_change_state(btif_av_cb.sm_handle, av_state);
+            if (btif_av_cb.peer_sep == AVDT_TSEP_SNK)
+            {
+                /* if queued PLAY command,  send it now */
+                btif_rc_check_handle_pending_play(p_bta_data->open.bd_addr,
+                                             (p_bta_data->open.status == BTA_AV_SUCCESS));
+            }
+            else if (btif_av_cb.peer_sep == AVDT_TSEP_SRC)
+            {
+                /* if queued PLAY command,  send it now */
+                btif_rc_check_handle_pending_play(p_bta_data->open.bd_addr, FALSE);
+                /* Bring up AVRCP connection too */
+                BTA_AvOpenRc(btif_av_cb.bta_handle);
+            }
+            btif_queue_advance();
+        } break;
+
+        case BTA_AV_REMOTE_CMD_EVT:
+        case BTA_AV_VENDOR_CMD_EVT:
+        case BTA_AV_META_MSG_EVT:
+        case BTA_AV_RC_FEAT_EVT:
+        case BTA_AV_REMOTE_RSP_EVT:
+            btif_rc_handler(event, (tBTA_AV*)p_data);
+            break;
+
+        case BTA_AV_RC_CLOSE_EVT:
+            BTIF_TRACE_DEBUG("BTA_AV_RC_CLOSE_EVT: Stopping AV timer.");
+            alarm_cancel(av_open_on_rc_timer);
+            btif_rc_handler(event, p_data);
+            break;
+
+        case BTIF_AV_OFFLOAD_START_REQ_EVT:
+            BTIF_TRACE_ERROR("BTIF_AV_OFFLOAD_START_REQ_EVT: Stream not Started IDLE");
+            btif_a2dp_on_offload_started(BTA_AV_FAIL);
+            break;
+
+        default:
+            BTIF_TRACE_WARNING("%s : unhandled event:%s", __FUNCTION__,
+                                dump_av_sm_event_name(event));
+            return FALSE;
+
+    }
+
+    return TRUE;
+}
+/*****************************************************************************
+**
+** Function        btif_av_state_opening_handler
+**
+** Description     Intermediate state managing events during establishment
+**                 of avdtp channel
+**
+** Returns         TRUE if event was processed, FALSE otherwise
+**
+*******************************************************************************/
+
+static BOOLEAN btif_av_state_opening_handler(btif_sm_event_t event, void *p_data)
+{
+    BTIF_TRACE_DEBUG("%s event:%s flags %x", __FUNCTION__,
+                     dump_av_sm_event_name(event), btif_av_cb.flags);
+
+    switch (event)
+    {
+        case BTIF_SM_ENTER_EVT:
+            /* inform the application that we are entering connecting state */
+            btif_report_connection_state(BTAV_CONNECTION_STATE_CONNECTING, &(btif_av_cb.peer_bda));
+            break;
+
+        case BTIF_SM_EXIT_EVT:
+            break;
+
+        case BTA_AV_REJECT_EVT:
+            BTIF_TRACE_DEBUG(" Received  BTA_AV_REJECT_EVT ");
+            btif_report_connection_state(BTAV_CONNECTION_STATE_DISCONNECTED, &(btif_av_cb.peer_bda));
+            btif_sm_change_state(btif_av_cb.sm_handle, BTIF_AV_STATE_IDLE);
+            break;
+
+        case BTA_AV_OPEN_EVT:
+        {
+            tBTA_AV *p_bta_data = (tBTA_AV*)p_data;
+            btav_connection_state_t state;
+            btif_sm_state_t av_state;
+            BTIF_TRACE_DEBUG("status:%d, edr 0x%x",p_bta_data->open.status,
+                               p_bta_data->open.edr);
+
+            if (p_bta_data->open.status == BTA_AV_SUCCESS)
+            {
+                 state = BTAV_CONNECTION_STATE_CONNECTED;
+                 av_state = BTIF_AV_STATE_OPENED;
+                 btif_av_cb.edr = p_bta_data->open.edr;
+
+                 btif_av_cb.peer_sep = p_bta_data->open.sep;
+                 btif_a2dp_set_peer_sep(p_bta_data->open.sep);
+            }
+            else
+            {
+                BTIF_TRACE_WARNING("BTA_AV_OPEN_EVT::FAILED status: %d",
+                                     p_bta_data->open.status );
+                BD_ADDR peer_addr;
+                if ((btif_rc_get_connected_peer(peer_addr))
+                    &&(!bdcmp(btif_av_cb.peer_bda.address, peer_addr)))
+                {
+                    /*
+                     * Disconnect AVRCP connection, if
+                     * A2DP conneciton failed, for any reason
+                     */
+                    BTIF_TRACE_WARNING(" Disconnecting AVRCP ");
+                    BTA_AvCloseRc(btif_rc_get_connected_peer_handle());
+                }
+                state = BTAV_CONNECTION_STATE_DISCONNECTED;
+                av_state  = BTIF_AV_STATE_IDLE;
+            }
+
+            /* inform the application of the event */
+            btif_report_connection_state(state, &(btif_av_cb.peer_bda));
+            /* change state to open/idle based on the status */
+            btif_sm_change_state(btif_av_cb.sm_handle, av_state);
+            if (btif_av_cb.peer_sep == AVDT_TSEP_SNK)
+            {
+                /* if queued PLAY command,  send it now */
+                btif_rc_check_handle_pending_play(p_bta_data->open.bd_addr,
+                                             (p_bta_data->open.status == BTA_AV_SUCCESS));
+            }
+            else if (btif_av_cb.peer_sep == AVDT_TSEP_SRC)
+            {
+                /* if queued PLAY command,  send it now */
+                btif_rc_check_handle_pending_play(p_bta_data->open.bd_addr, FALSE);
+                /* Bring up AVRCP connection too */
+                BTA_AvOpenRc(btif_av_cb.bta_handle);
+            }
+            btif_queue_advance();
+        } break;
+
+        case BTIF_AV_SINK_CONFIG_REQ_EVT:
+        {
+            btif_av_sink_config_req_t req;
+            // copy to avoid alignment problems
+            memcpy(&req, p_data, sizeof(req));
+
+            BTIF_TRACE_WARNING("BTIF_AV_SINK_CONFIG_REQ_EVT %d %d", req.sample_rate,
+                    req.channel_count);
+            if (btif_av_cb.peer_sep == AVDT_TSEP_SRC && bt_av_sink_callbacks != NULL) {
+                HAL_CBACK(bt_av_sink_callbacks, audio_config_cb, &(btif_av_cb.peer_bda),
+                        req.sample_rate, req.channel_count);
+            }
+        } break;
+
+        case BTIF_AV_CONNECT_REQ_EVT:
+            // Check for device, if same device which moved to opening then ignore callback
+            if (memcmp ((bt_bdaddr_t*)p_data, &(btif_av_cb.peer_bda),
+                sizeof(btif_av_cb.peer_bda)) == 0)
+            {
+                BTIF_TRACE_DEBUG("%s: Same device moved to Opening state,ignore Connect Req", __func__);
+                btif_queue_advance();
+                break;
+            }
+            else
+            {
+                BTIF_TRACE_DEBUG("%s: Moved from idle by Incoming Connection request", __func__);
+                btif_report_connection_state(BTAV_CONNECTION_STATE_DISCONNECTED, (bt_bdaddr_t*)p_data);
+                btif_queue_advance();
+                break;
+            }
+
+        case BTA_AV_PENDING_EVT:
+            // Check for device, if same device which moved to opening then ignore callback
+            if (memcmp (((tBTA_AV*)p_data)->pend.bd_addr, &(btif_av_cb.peer_bda),
+                sizeof(btif_av_cb.peer_bda)) == 0)
+            {
+                BTIF_TRACE_DEBUG("%s: Same device moved to Opening state,ignore Pending Req", __func__);
+                break;
+            }
+            else
+            {
+                BTIF_TRACE_DEBUG("%s: Moved from idle by outgoing Connection request", __func__);
+                BTA_AvDisconnect(((tBTA_AV*)p_data)->pend.bd_addr);
+                break;
+            }
+
+        case BTIF_AV_OFFLOAD_START_REQ_EVT:
+            btif_a2dp_on_offload_started(BTA_AV_FAIL);
+            BTIF_TRACE_ERROR("BTIF_AV_OFFLOAD_START_REQ_EVT: Stream not Started OPENING");
+            break;
+
+        case BTA_AV_CLOSE_EVT:
+            btif_a2dp_on_stopped(NULL);
+            btif_report_connection_state(BTAV_CONNECTION_STATE_DISCONNECTED,
+                    &(btif_av_cb.peer_bda));
+            btif_sm_change_state(btif_av_cb.sm_handle, BTIF_AV_STATE_IDLE);
+            break;
+
+        CHECK_RC_EVENT(event, p_data);
+
+        default:
+            BTIF_TRACE_WARNING("%s : unhandled event:%s", __FUNCTION__,
+                                dump_av_sm_event_name(event));
+            return FALSE;
+
+   }
+   return TRUE;
+}
+
+/*****************************************************************************
+**
+** Function        btif_av_state_closing_handler
+**
+** Description     Intermediate state managing events during closing
+**                 of avdtp channel
+**
+** Returns         TRUE if event was processed, FALSE otherwise
+**
+*******************************************************************************/
+
+static BOOLEAN btif_av_state_closing_handler(btif_sm_event_t event, void *p_data)
+{
+    BTIF_TRACE_DEBUG("%s event:%s flags %x", __FUNCTION__,
+                     dump_av_sm_event_name(event), btif_av_cb.flags);
+
+    switch (event)
+    {
+        case BTIF_SM_ENTER_EVT:
+            if (btif_av_cb.peer_sep == AVDT_TSEP_SNK)
+            {
+                /* immediately stop transmission of frames */
+                btif_a2dp_set_tx_flush(TRUE);
+                /* wait for audioflinger to stop a2dp */
+            }
+            if (btif_av_cb.peer_sep == AVDT_TSEP_SRC)
+            {
+                btif_a2dp_set_rx_flush(TRUE);
+            }
+            break;
+
+        case BTA_AV_STOP_EVT:
+        case BTIF_AV_STOP_STREAM_REQ_EVT:
+            if (btif_av_cb.peer_sep == AVDT_TSEP_SNK)
+            {
+              /* immediately flush any pending tx frames while suspend is pending */
+              btif_a2dp_set_tx_flush(TRUE);
+            }
+            if (btif_av_cb.peer_sep == AVDT_TSEP_SRC)
+            {
+                btif_a2dp_set_rx_flush(TRUE);
+            }
+
+            btif_a2dp_on_stopped(NULL);
+            break;
+
+        case BTIF_SM_EXIT_EVT:
+            break;
+
+        case BTA_AV_CLOSE_EVT:
+
+            /* inform the application that we are disconnecting */
+            btif_report_connection_state(BTAV_CONNECTION_STATE_DISCONNECTED, &(btif_av_cb.peer_bda));
+
+            btif_sm_change_state(btif_av_cb.sm_handle, BTIF_AV_STATE_IDLE);
+            break;
+
+        /* Handle the RC_CLOSE event for the cleanup */
+        case BTA_AV_RC_CLOSE_EVT:
+            btif_rc_handler(event, (tBTA_AV*)p_data);
+            break;
+
+        case BTIF_AV_OFFLOAD_START_REQ_EVT:
+            btif_a2dp_on_offload_started(BTA_AV_FAIL);
+            BTIF_TRACE_ERROR("BTIF_AV_OFFLOAD_START_REQ_EVT: Stream not Started Closing");
+            break;
+
+        default:
+            BTIF_TRACE_WARNING("%s : unhandled event:%s", __FUNCTION__,
+                                dump_av_sm_event_name(event));
+            return FALSE;
+   }
+   return TRUE;
+}
+
+/*****************************************************************************
+**
+** Function     btif_av_state_opened_handler
+**
+** Description  Handles AV events while AVDTP is in OPEN state
+**
+** Returns      TRUE if event was processed, FALSE otherwise
+**
+*******************************************************************************/
+
+static BOOLEAN btif_av_state_opened_handler(btif_sm_event_t event, void *p_data)
+{
+    tBTA_AV *p_av = (tBTA_AV*)p_data;
+
+    BTIF_TRACE_DEBUG("%s event:%s flags %x", __FUNCTION__,
+                     dump_av_sm_event_name(event), btif_av_cb.flags);
+
+    if ( (event == BTA_AV_REMOTE_CMD_EVT) && (btif_av_cb.flags & BTIF_AV_FLAG_REMOTE_SUSPEND) &&
+         (p_av->remote_cmd.rc_id == BTA_AV_RC_PLAY) )
+    {
+        BTIF_TRACE_EVENT("%s: Resetting remote suspend flag on RC PLAY", __FUNCTION__);
+        btif_av_cb.flags &= ~BTIF_AV_FLAG_REMOTE_SUSPEND;
+    }
+
+    switch (event)
+    {
+        case BTIF_SM_ENTER_EVT:
+            btif_av_cb.flags &= ~BTIF_AV_FLAG_PENDING_STOP;
+            btif_av_cb.flags &= ~BTIF_AV_FLAG_PENDING_START;
+            break;
+
+        case BTIF_SM_EXIT_EVT:
+            btif_av_cb.flags &= ~BTIF_AV_FLAG_PENDING_START;
+            break;
+
+        case BTIF_AV_START_STREAM_REQ_EVT:
+            if (btif_av_cb.peer_sep != AVDT_TSEP_SRC)
+                btif_a2dp_setup_codec();
+            BTA_AvStart();
+            btif_av_cb.flags |= BTIF_AV_FLAG_PENDING_START;
+            break;
+
+        case BTA_AV_START_EVT:
+        {
+            BTIF_TRACE_EVENT("BTA_AV_START_EVT status %d, suspending %d, init %d",
+                p_av->start.status, p_av->start.suspending, p_av->start.initiator);
+
+            if ((p_av->start.status == BTA_SUCCESS) && (p_av->start.suspending == TRUE))
+                return TRUE;
+
+            /* if remote tries to start a2dp when DUT is a2dp source
+             * then suspend. In case a2dp is sink and call is active
+             * then disconnect the AVDTP channel
+             */
+            if (!(btif_av_cb.flags & BTIF_AV_FLAG_PENDING_START))
+            {
+                if (btif_av_cb.peer_sep == AVDT_TSEP_SNK)
+                {
+                    BTIF_TRACE_EVENT("%s: trigger suspend as remote initiated!!", __FUNCTION__);
+                    btif_dispatch_sm_event(BTIF_AV_SUSPEND_STREAM_REQ_EVT, NULL, 0);
+                }
+            }
+
+            /*  In case peer is A2DP SRC we do not want to ack commands on UIPC*/
+            if (btif_av_cb.peer_sep == AVDT_TSEP_SNK)
+            {
+                if (btif_a2dp_on_started(&p_av->start,
+                    ((btif_av_cb.flags & BTIF_AV_FLAG_PENDING_START) != 0)))
+                {
+                    /* only clear pending flag after acknowledgement */
+                    btif_av_cb.flags &= ~BTIF_AV_FLAG_PENDING_START;
+                }
+            }
+
+            /* remain in open state if status failed */
+            if (p_av->start.status != BTA_AV_SUCCESS)
+                return FALSE;
+
+            if (btif_av_cb.peer_sep == AVDT_TSEP_SRC)
+            {
+                btif_a2dp_set_rx_flush(FALSE); /*  remove flush state, ready for streaming*/
+            }
+
+            /* change state to started, send acknowledgement if start is pending */
+            if (btif_av_cb.flags & BTIF_AV_FLAG_PENDING_START) {
+                if (btif_av_cb.peer_sep == AVDT_TSEP_SNK)
+                    btif_a2dp_on_started(NULL, TRUE);
+                /* pending start flag will be cleared when exit current state */
+            }
+            btif_sm_change_state(btif_av_cb.sm_handle, BTIF_AV_STATE_STARTED);
+
+        } break;
+
+        case BTIF_AV_DISCONNECT_REQ_EVT:
+            BTA_AvClose(btif_av_cb.bta_handle);
+            if (btif_av_cb.peer_sep == AVDT_TSEP_SRC) {
+                BTA_AvCloseRc(btif_av_cb.bta_handle);
+            }
+
+            /* inform the application that we are disconnecting */
+            btif_report_connection_state(BTAV_CONNECTION_STATE_DISCONNECTING, &(btif_av_cb.peer_bda));
+            break;
+
+        case BTA_AV_CLOSE_EVT:
+             /* avdtp link is closed */
+            btif_a2dp_on_stopped(NULL);
+
+            /* inform the application that we are disconnected */
+            btif_report_connection_state(BTAV_CONNECTION_STATE_DISCONNECTED, &(btif_av_cb.peer_bda));
+
+            /* change state to idle, send acknowledgement if start is pending */
+            if (btif_av_cb.flags & BTIF_AV_FLAG_PENDING_START) {
+                btif_a2dp_ack_fail();
+                /* pending start flag will be cleared when exit current state */
+            }
+            btif_sm_change_state(btif_av_cb.sm_handle, BTIF_AV_STATE_IDLE);
+            break;
+
+        case BTA_AV_RECONFIG_EVT:
+            if((btif_av_cb.flags & BTIF_AV_FLAG_PENDING_START) &&
+                (p_av->reconfig.status == BTA_AV_SUCCESS))
+            {
+               APPL_TRACE_WARNING("reconfig done BTA_AVstart()");
+               BTA_AvStart();
+            }
+            else if(btif_av_cb.flags & BTIF_AV_FLAG_PENDING_START)
+            {
+               btif_av_cb.flags &= ~BTIF_AV_FLAG_PENDING_START;
+               btif_a2dp_ack_fail();
+            }
+            break;
+
+        case BTIF_AV_CONNECT_REQ_EVT:
+            if (memcmp ((bt_bdaddr_t*)p_data, &(btif_av_cb.peer_bda),
+                sizeof(btif_av_cb.peer_bda)) == 0)
+            {
+                BTIF_TRACE_DEBUG("%s: Ignore BTIF_AV_CONNECT_REQ_EVT for same device", __func__);
+            }
+            else
+            {
+                BTIF_TRACE_DEBUG("%s: Moved to opened by Other Incoming Conn req", __func__);
+                btif_report_connection_state(BTAV_CONNECTION_STATE_DISCONNECTED,
+                        (bt_bdaddr_t*)p_data);
+            }
+            btif_queue_advance();
+            break;
+
+        case BTIF_AV_OFFLOAD_START_REQ_EVT:
+            btif_a2dp_on_offload_started(BTA_AV_FAIL);
+            BTIF_TRACE_ERROR("BTIF_AV_OFFLOAD_START_REQ_EVT: Stream not Started Opened");
+            break;
+
+        CHECK_RC_EVENT(event, p_data);
+
+        default:
+            BTIF_TRACE_WARNING("%s : unhandled event:%s", __FUNCTION__,
+                               dump_av_sm_event_name(event));
+            return FALSE;
+
+    }
+    return TRUE;
+}
+
+/*****************************************************************************
+**
+** Function     btif_av_state_started_handler
+**
+** Description  Handles AV events while A2DP stream is started
+**
+** Returns      TRUE if event was processed, FALSE otherwise
+**
+*******************************************************************************/
+
+static BOOLEAN btif_av_state_started_handler(btif_sm_event_t event, void *p_data)
+{
+    tBTA_AV *p_av = (tBTA_AV*)p_data;
+
+    BTIF_TRACE_DEBUG("%s event:%s flags %x", __FUNCTION__,
+                     dump_av_sm_event_name(event), btif_av_cb.flags);
+
+    switch (event)
+    {
+#ifdef BLUETOOTH_RTK
+        case BTA_AV_RECONFIG_EVT:
+        {
+            if(p_av->reconfig.status == BTA_AV_SUCCESS)
+            {
+                BTA_AvStart();
+                btif_av_cb.flags &= ~BTIF_AV_FLAG_REMOTE_SUSPEND;
+                btif_report_audio_state(BTAV_AUDIO_STATE_STARTED, &(btif_av_cb.peer_bda));
+                adjust_priority_a2dp(TRUE);
+            }
+        }
+        break;
+#endif
+        case BTIF_SM_ENTER_EVT:
+
+            /* we are again in started state, clear any remote suspend flags */
+            btif_av_cb.flags &= ~BTIF_AV_FLAG_REMOTE_SUSPEND;
+
+            /**
+             * Report to components above that we have entered the streaming
+             * stage, this should usually be followed by focus grant.
+             * see update_audio_focus_state()
+             */
+            btif_report_audio_state(BTAV_AUDIO_STATE_STARTED, &(btif_av_cb.peer_bda));
+
+            /* increase the a2dp consumer task priority temporarily when start
+            ** audio playing, to avoid overflow the audio packet queue. */
+            adjust_priority_a2dp(TRUE);
+
+            break;
+
+        case BTIF_SM_EXIT_EVT:
+            /* restore the a2dp consumer task priority when stop audio playing. */
+            adjust_priority_a2dp(FALSE);
+
+            break;
+
+        case BTIF_AV_START_STREAM_REQ_EVT:
+            /* we were remotely started, just ack back the local request */
+            if (btif_av_cb.peer_sep == AVDT_TSEP_SNK)
+                btif_a2dp_on_started(NULL, TRUE);
+            break;
+
+        /* fixme -- use suspend = true always to work around issue with BTA AV */
+        case BTIF_AV_STOP_STREAM_REQ_EVT:
+        case BTIF_AV_SUSPEND_STREAM_REQ_EVT:
+
+            /* set pending flag to ensure btif task is not trying to restart
+               stream while suspend is in progress */
+            btif_av_cb.flags |= BTIF_AV_FLAG_LOCAL_SUSPEND_PENDING;
+
+            /* if we were remotely suspended but suspend locally, local suspend
+               always overrides */
+            btif_av_cb.flags &= ~BTIF_AV_FLAG_REMOTE_SUSPEND;
+
+            if (btif_av_cb.peer_sep == AVDT_TSEP_SNK)
+            {
+            /* immediately stop transmission of frames while suspend is pending */
+                btif_a2dp_set_tx_flush(TRUE);
+            }
+
+            if (btif_av_cb.peer_sep == AVDT_TSEP_SRC) {
+                btif_a2dp_set_rx_flush(TRUE);
+                btif_a2dp_on_stopped(NULL);
+            }
+
+            BTA_AvStop(TRUE);
+            break;
+
+        case BTIF_AV_DISCONNECT_REQ_EVT:
+
+            /* request avdtp to close */
+            BTA_AvClose(btif_av_cb.bta_handle);
+            if (btif_av_cb.peer_sep == AVDT_TSEP_SRC) {
+                BTA_AvCloseRc(btif_av_cb.bta_handle);
+            }
+
+            /* inform the application that we are disconnecting */
+            btif_report_connection_state(BTAV_CONNECTION_STATE_DISCONNECTING, &(btif_av_cb.peer_bda));
+
+            /* wait in closing state until fully closed */
+            btif_sm_change_state(btif_av_cb.sm_handle, BTIF_AV_STATE_CLOSING);
+            break;
+
+        case BTA_AV_SUSPEND_EVT:
+
+            BTIF_TRACE_EVENT("BTA_AV_SUSPEND_EVT status %d, init %d",
+                 p_av->suspend.status, p_av->suspend.initiator);
+
+            /* a2dp suspended, stop media task until resumed */
+            btif_a2dp_on_suspended(&p_av->suspend);
+
+            /* if not successful, remain in current state */
+            if (p_av->suspend.status != BTA_AV_SUCCESS)
+            {
+                btif_av_cb.flags &= ~BTIF_AV_FLAG_LOCAL_SUSPEND_PENDING;
+
+               if (btif_av_cb.peer_sep == AVDT_TSEP_SNK)
+               {
+                /* suspend failed, reset back tx flush state */
+                    btif_a2dp_set_tx_flush(FALSE);
+               }
+                return FALSE;
+            }
+
+            if (p_av->suspend.initiator != TRUE)
+            {
+                /* remote suspend, notify HAL and await audioflinger to
+                   suspend/stop stream */
+
+                /* set remote suspend flag to block media task from restarting
+                   stream only if we did not already initiate a local suspend */
+                if ((btif_av_cb.flags & BTIF_AV_FLAG_LOCAL_SUSPEND_PENDING) == 0)
+                    btif_av_cb.flags |= BTIF_AV_FLAG_REMOTE_SUSPEND;
+
+                btif_report_audio_state(BTAV_AUDIO_STATE_REMOTE_SUSPEND, &(btif_av_cb.peer_bda));
+            }
+            else
+            {
+                btif_report_audio_state(BTAV_AUDIO_STATE_STOPPED, &(btif_av_cb.peer_bda));
+            }
+
+            btif_sm_change_state(btif_av_cb.sm_handle, BTIF_AV_STATE_OPENED);
+
+            /* suspend completed and state changed, clear pending status */
+            btif_av_cb.flags &= ~BTIF_AV_FLAG_LOCAL_SUSPEND_PENDING;
+            break;
+
+        case BTA_AV_STOP_EVT:
+
+            btif_av_cb.flags |= BTIF_AV_FLAG_PENDING_STOP;
+            btif_a2dp_on_stopped(&p_av->suspend);
+
+            btif_report_audio_state(BTAV_AUDIO_STATE_STOPPED, &(btif_av_cb.peer_bda));
+
+            /* if stop was successful, change state to open */
+            if (p_av->suspend.status == BTA_AV_SUCCESS)
+                btif_sm_change_state(btif_av_cb.sm_handle, BTIF_AV_STATE_OPENED);
+
+            break;
+
+        case BTA_AV_CLOSE_EVT:
+
+             btif_av_cb.flags |= BTIF_AV_FLAG_PENDING_STOP;
+
+            /* avdtp link is closed */
+            btif_a2dp_on_stopped(NULL);
+
+            /* inform the application that we are disconnected */
+            btif_report_connection_state(BTAV_CONNECTION_STATE_DISCONNECTED, &(btif_av_cb.peer_bda));
+
+            btif_sm_change_state(btif_av_cb.sm_handle, BTIF_AV_STATE_IDLE);
+            break;
+
+        case BTIF_AV_OFFLOAD_START_REQ_EVT:
+            BTA_AvOffloadStart(btif_av_cb.bta_handle);
+            break;
+
+        case BTA_AV_OFFLOAD_START_RSP_EVT:
+
+            btif_a2dp_on_offload_started(p_av->status);
+            break;
+
+        CHECK_RC_EVENT(event, p_data);
+
+        default:
+            BTIF_TRACE_WARNING("%s : unhandled event:%s", __FUNCTION__,
+                                 dump_av_sm_event_name(event));
+            return FALSE;
+
+    }
+    return TRUE;
+}
+
+/*****************************************************************************
+**  Local event handlers
+******************************************************************************/
+
+static void btif_av_handle_event(UINT16 event, char* p_param)
+{
+    switch(event)
+    {
+        case BTIF_AV_CLEANUP_REQ_EVT:
+            BTIF_TRACE_EVENT("%s: BTIF_AV_CLEANUP_REQ_EVT", __FUNCTION__);
+            btif_a2dp_stop_media_task();
+            break;
+
+        default:
+            btif_sm_dispatch(btif_av_cb.sm_handle, event, (void*)p_param);
+            btif_av_event_free_data(event, p_param);
+    }
+}
+
+void btif_av_event_deep_copy(UINT16 event, char *p_dest, char *p_src)
+{
+    tBTA_AV *av_src = (tBTA_AV *)p_src;
+    tBTA_AV *av_dest = (tBTA_AV *)p_dest;
+
+    // First copy the structure
+    maybe_non_aligned_memcpy(av_dest, av_src, sizeof(*av_src));
+
+    switch (event)
+    {
+        case BTA_AV_META_MSG_EVT:
+            if (av_src->meta_msg.p_data && av_src->meta_msg.len)
+            {
+                av_dest->meta_msg.p_data = osi_calloc(av_src->meta_msg.len);
+                memcpy(av_dest->meta_msg.p_data, av_src->meta_msg.p_data,
+                       av_src->meta_msg.len);
+            }
+
+            if (av_src->meta_msg.p_msg)
+            {
+                av_dest->meta_msg.p_msg = osi_calloc(sizeof(tAVRC_MSG));
+                memcpy(av_dest->meta_msg.p_msg, av_src->meta_msg.p_msg,
+                       sizeof(tAVRC_MSG));
+
+                if (av_src->meta_msg.p_msg->vendor.p_vendor_data &&
+                    av_src->meta_msg.p_msg->vendor.vendor_len)
+                {
+                    av_dest->meta_msg.p_msg->vendor.p_vendor_data = osi_calloc(
+                        av_src->meta_msg.p_msg->vendor.vendor_len);
+                    memcpy(av_dest->meta_msg.p_msg->vendor.p_vendor_data,
+                        av_src->meta_msg.p_msg->vendor.p_vendor_data,
+                        av_src->meta_msg.p_msg->vendor.vendor_len);
+                }
+            }
+            break;
+
+        default:
+            break;
+    }
+}
+
+static void btif_av_event_free_data(btif_sm_event_t event, void *p_data)
+{
+    switch (event)
+    {
+        case BTA_AV_META_MSG_EVT:
+            {
+                tBTA_AV *av = (tBTA_AV *)p_data;
+                osi_free_and_reset((void **)&av->meta_msg.p_data);
+
+                if (av->meta_msg.p_msg) {
+                    osi_free(av->meta_msg.p_msg->vendor.p_vendor_data);
+                    osi_free_and_reset((void **)&av->meta_msg.p_msg);
+                }
+            }
+            break;
+
+        default:
+            break;
+    }
+}
+
+static void bte_av_callback(tBTA_AV_EVT event, tBTA_AV *p_data)
+{
+    btif_transfer_context(btif_av_handle_event, event,
+                          (char*)p_data, sizeof(tBTA_AV), btif_av_event_deep_copy);
+}
+
+static void bte_av_media_callback(tBTA_AV_EVT event, tBTA_AV_MEDIA *p_data)
+{
+    btif_sm_state_t state;
+    UINT8 que_len;
+    tA2D_STATUS a2d_status;
+    tA2D_SBC_CIE sbc_cie;
+    btif_av_sink_config_req_t config_req;
+
+    if (event == BTA_AV_MEDIA_DATA_EVT)/* Switch to BTIF_MEDIA context */
+    {
+        state= btif_sm_get_state(btif_av_cb.sm_handle);
+        if ( (state == BTIF_AV_STATE_STARTED) || /* send SBC packets only in Started State */
+             (state == BTIF_AV_STATE_OPENED) )
+        {
+            que_len = btif_media_sink_enque_buf((BT_HDR *)p_data);
+            BTIF_TRACE_DEBUG(" Packets in Que %d",que_len);
+        }
+        else
+            return;
+    }
+
+    if (event == BTA_AV_MEDIA_SINK_CFG_EVT) {
+        /* send a command to BT Media Task */
+        btif_reset_decoder((UINT8*)(p_data->avk_config.codec_info));
+        a2d_status = A2D_ParsSbcInfo(&sbc_cie, (UINT8 *)(p_data->avk_config.codec_info), FALSE);
+        if (a2d_status == A2D_SUCCESS) {
+            /* Switch to BTIF context */
+            config_req.sample_rate = btif_a2dp_get_track_frequency(sbc_cie.samp_freq);
+            config_req.channel_count = btif_a2dp_get_track_channel_count(sbc_cie.ch_mode);
+            memcpy(&config_req.peer_bd,(UINT8*)(p_data->avk_config.bd_addr),
+                                                              sizeof(config_req.peer_bd));
+            btif_transfer_context(btif_av_handle_event, BTIF_AV_SINK_CONFIG_REQ_EVT,
+                                     (char*)&config_req, sizeof(config_req), NULL);
+        } else {
+            APPL_TRACE_ERROR("ERROR dump_codec_info A2D_ParsSbcInfo fail:%d", a2d_status);
+        }
+    }
+}
+/*******************************************************************************
+**
+** Function         btif_av_init
+**
+** Description      Initializes btif AV if not already done
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+
+bt_status_t btif_av_init(int service_id)
+{
+    if (btif_av_cb.sm_handle == NULL)
+    {
+        alarm_free(av_open_on_rc_timer);
+        av_open_on_rc_timer = alarm_new("btif_av.av_open_on_rc_timer");
+        if (!btif_a2dp_start_media_task())
+            return BT_STATUS_FAIL;
+
+        btif_enable_service(service_id);
+
+        /* Also initialize the AV state machine */
+        btif_av_cb.sm_handle =
+                btif_sm_init((const btif_sm_handler_t*)btif_av_state_handlers, BTIF_AV_STATE_IDLE);
+
+        btif_a2dp_on_init();
+    }
+
+    return BT_STATUS_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         init_src
+**
+** Description      Initializes the AV interface for source mode
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+
+static bt_status_t init_src(btav_callbacks_t* callbacks)
+{
+    BTIF_TRACE_EVENT("%s()", __func__);
+
+    bt_status_t status = btif_av_init(BTA_A2DP_SOURCE_SERVICE_ID);
+    if (status == BT_STATUS_SUCCESS)
+        bt_av_src_callbacks = callbacks;
+
+    return status;
+}
+
+/*******************************************************************************
+**
+** Function         init_sink
+**
+** Description      Initializes the AV interface for sink mode
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+
+static bt_status_t init_sink(btav_callbacks_t* callbacks)
+{
+    BTIF_TRACE_EVENT("%s()", __func__);
+
+    bt_status_t status = btif_av_init(BTA_A2DP_SINK_SERVICE_ID);
+    if (status == BT_STATUS_SUCCESS)
+        bt_av_sink_callbacks = callbacks;
+#ifdef BLUETOOTH_RTK
+#if (BTA_AV_SINK_INCLUDED == TRUE)
+        btif_enable_service(BTA_A2DP_SINK_SERVICE_ID);
+#endif
+#endif
+
+    return status;
+}
+
+#ifdef USE_AUDIO_TRACK
+/*******************************************************************************
+**
+** Function         update_audio_focus_state
+**
+** Description      Updates the final focus state reported by components calling
+**                  this module.
+**
+** Returns          None
+**
+*******************************************************************************/
+void update_audio_focus_state(int state)
+{
+    BTIF_TRACE_DEBUG("%s state %d ",__func__, state);
+    btif_a2dp_set_audio_focus_state(state);
+}
+
+/*******************************************************************************
+**
+** Function         update_audio_track_gain
+**
+** Description      Updates the track gain (used for ducking).
+**
+** Returns          None
+**
+*******************************************************************************/
+void update_audio_track_gain(float gain)
+{
+    BTIF_TRACE_DEBUG("%s gain %f ",__func__, gain);
+    btif_a2dp_set_audio_track_gain(gain);
+}
+#endif
+
+/*******************************************************************************
+**
+** Function         connect
+**
+** Description      Establishes the AV signalling channel with the remote headset
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+
+static bt_status_t connect_int(bt_bdaddr_t *bd_addr, uint16_t uuid)
+{
+    btif_av_connect_req_t connect_req;
+    connect_req.target_bda = bd_addr;
+    connect_req.uuid = uuid;
+    BTIF_TRACE_EVENT("%s", __FUNCTION__);
+
+#ifdef BLUETOOTH_RTK
+    btif_av_cb.uuid = uuid;
+#endif
+    btif_sm_dispatch(btif_av_cb.sm_handle, BTIF_AV_CONNECT_REQ_EVT, (char*)&connect_req);
+
+    return BT_STATUS_SUCCESS;
+}
+
+static bt_status_t src_connect_sink(bt_bdaddr_t *bd_addr)
+{
+    BTIF_TRACE_EVENT("%s", __FUNCTION__);
+    CHECK_BTAV_INIT();
+
+    return btif_queue_connect(UUID_SERVCLASS_AUDIO_SOURCE, bd_addr, connect_int);
+}
+
+static bt_status_t sink_connect_src(bt_bdaddr_t *bd_addr)
+{
+    BTIF_TRACE_EVENT("%s", __FUNCTION__);
+    CHECK_BTAV_INIT();
+
+    return btif_queue_connect(UUID_SERVCLASS_AUDIO_SINK, bd_addr, connect_int);
+}
+
+/*******************************************************************************
+**
+** Function         disconnect
+**
+** Description      Tears down the AV signalling channel with the remote headset
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+static bt_status_t disconnect(bt_bdaddr_t *bd_addr)
+{
+    BTIF_TRACE_EVENT("%s", __FUNCTION__);
+
+    CHECK_BTAV_INIT();
+
+    /* Switch to BTIF context */
+    return btif_transfer_context(btif_av_handle_event, BTIF_AV_DISCONNECT_REQ_EVT,
+                                 (char*)bd_addr, sizeof(bt_bdaddr_t), NULL);
+}
+
+/*******************************************************************************
+**
+** Function         cleanup
+**
+** Description      Shuts down the AV interface and does the cleanup
+**
+** Returns          None
+**
+*******************************************************************************/
+static void cleanup(int service_uuid)
+{
+    BTIF_TRACE_EVENT("%s", __FUNCTION__);
+
+    btif_transfer_context(btif_av_handle_event, BTIF_AV_CLEANUP_REQ_EVT, NULL, 0, NULL);
+
+    btif_disable_service(service_uuid);
+
+    /* Also shut down the AV state machine */
+    btif_sm_shutdown(btif_av_cb.sm_handle);
+    btif_av_cb.sm_handle = NULL;
+#ifdef BLUETOOTH_RTK
+    btif_av_cb.peer_sep = 0;
+    btif_av_cb.uuid = 0;
+#endif
+}
+
+static void cleanup_src(void) {
+    BTIF_TRACE_EVENT("%s", __FUNCTION__);
+
+    if (bt_av_src_callbacks)
+    {
+        bt_av_src_callbacks = NULL;
+        if (bt_av_sink_callbacks == NULL)
+            cleanup(BTA_A2DP_SOURCE_SERVICE_ID);
+    }
+}
+
+static void cleanup_sink(void) {
+    BTIF_TRACE_EVENT("%s", __FUNCTION__);
+
+    if (bt_av_sink_callbacks)
+    {
+        bt_av_sink_callbacks = NULL;
+        if (bt_av_src_callbacks == NULL)
+            cleanup(BTA_A2DP_SINK_SERVICE_ID);
+    }
+}
+#ifdef BLUETOOTH_RTK
+static const btav_interface_t bt_av_src_interface = {
+    .size = sizeof(btav_interface_t),
+    .init = init_src,
+    .connect = src_connect_sink,
+    .disconnect = disconnect,
+    .cleanup = cleanup_src,
+    .set_audio_focus_state =  NULL,
+    .set_audio_track_gain = NULL,
+};
+#else
+static const btav_interface_t bt_av_src_interface = {
+    sizeof(btav_interface_t),
+    init_src,
+    src_connect_sink,
+    disconnect,
+    cleanup_src,
+    NULL,
+    NULL,
+};
+#endif
+#ifdef BLUETOOTH_RTK
+static const btav_interface_t bt_av_sink_interface = {
+    .size = sizeof(btav_interface_t),
+    .init = init_sink,
+    .connect = sink_connect_src,
+    .disconnect = disconnect,
+    .cleanup = cleanup_sink,
+#ifdef USE_AUDIO_TRACK
+    .set_audio_focus_state = update_audio_focus_state,
+    .set_audio_track_gain = update_audio_track_gain,
+#else
+    .set_audio_focus_state = NULL,
+    .set_audio_track_gain = NULL,
+#endif
+};
+#else
+static const btav_interface_t bt_av_sink_interface = {
+    sizeof(btav_interface_t),
+    init_sink,
+    sink_connect_src,
+    disconnect,
+    cleanup_sink,
+#ifdef USE_AUDIO_TRACK
+    update_audio_focus_state,
+    update_audio_track_gain,
+#else
+    NULL,
+    NULL,
+#endif
+};
+#endif
+/*******************************************************************************
+**
+** Function         btif_av_get_sm_handle
+**
+** Description      Fetches current av SM handle
+**
+** Returns          None
+**
+*******************************************************************************/
+
+btif_sm_handle_t btif_av_get_sm_handle(void)
+{
+    return btif_av_cb.sm_handle;
+}
+
+/*******************************************************************************
+**
+** Function         btif_av_get_addr
+**
+** Description      Fetches current AV BD address
+**
+** Returns          BD address
+**
+*******************************************************************************/
+
+bt_bdaddr_t btif_av_get_addr(void)
+{
+    return btif_av_cb.peer_bda;
+}
+
+/*******************************************************************************
+** Function         btif_av_is_sink_enabled
+**
+** Description      Checks if A2DP Sink is enabled or not
+**
+** Returns          TRUE if A2DP Sink is enabled, false otherwise
+**
+*******************************************************************************/
+
+BOOLEAN btif_av_is_sink_enabled(void)
+{
+    return (bt_av_sink_callbacks != NULL) ? TRUE : FALSE;
+}
+
+/*******************************************************************************
+**
+** Function         btif_av_stream_ready
+**
+** Description      Checks whether AV is ready for starting a stream
+**
+** Returns          None
+**
+*******************************************************************************/
+
+BOOLEAN btif_av_stream_ready(void)
+{
+    btif_sm_state_t state = btif_sm_get_state(btif_av_cb.sm_handle);
+
+    BTIF_TRACE_DEBUG("btif_av_stream_ready : sm hdl %d, state %d, flags %x",
+                btif_av_cb.sm_handle, state, btif_av_cb.flags);
+
+    /* also make sure main adapter is enabled */
+    if (btif_is_enabled() == 0)
+    {
+        BTIF_TRACE_EVENT("main adapter not enabled");
+        return FALSE;
+    }
+
+    /* check if we are remotely suspended or stop is pending */
+    if (btif_av_cb.flags & (BTIF_AV_FLAG_REMOTE_SUSPEND|BTIF_AV_FLAG_PENDING_STOP))
+        return FALSE;
+
+    return (state == BTIF_AV_STATE_OPENED);
+}
+
+/*******************************************************************************
+**
+** Function         btif_av_stream_started_ready
+**
+** Description      Checks whether AV ready for media start in streaming state
+**
+** Returns          None
+**
+*******************************************************************************/
+
+BOOLEAN btif_av_stream_started_ready(void)
+{
+    btif_sm_state_t state = btif_sm_get_state(btif_av_cb.sm_handle);
+
+    BTIF_TRACE_DEBUG("btif_av_stream_started : sm hdl %d, state %d, flags %x",
+                btif_av_cb.sm_handle, state, btif_av_cb.flags);
+
+    /* disallow media task to start if we have pending actions */
+    if (btif_av_cb.flags & (BTIF_AV_FLAG_LOCAL_SUSPEND_PENDING | BTIF_AV_FLAG_REMOTE_SUSPEND
+        | BTIF_AV_FLAG_PENDING_STOP))
+        return FALSE;
+
+    return (state == BTIF_AV_STATE_STARTED);
+}
+
+/*******************************************************************************
+**
+** Function         btif_dispatch_sm_event
+**
+** Description      Send event to AV statemachine
+**
+** Returns          None
+**
+*******************************************************************************/
+
+/* used to pass events to AV statemachine from other tasks */
+void btif_dispatch_sm_event(btif_av_sm_event_t event, void *p_data, int len)
+{
+    /* Switch to BTIF context */
+    btif_transfer_context(btif_av_handle_event, event,
+                          (char*)p_data, len, NULL);
+}
+
+/*******************************************************************************
+**
+** Function         btif_av_execute_service
+**
+** Description      Initializes/Shuts down the service
+**
+** Returns          BT_STATUS_SUCCESS on success, BT_STATUS_FAIL otherwise
+**
+*******************************************************************************/
+bt_status_t btif_av_execute_service(BOOLEAN b_enable)
+{
+     if (b_enable)
+     {
+         /* TODO: Removed BTA_SEC_AUTHORIZE since the Java/App does not
+          * handle this request in order to allow incoming connections to succeed.
+          * We need to put this back once support for this is added */
+
+         /* Added BTA_AV_FEAT_NO_SCO_SSPD - this ensures that the BTA does not
+          * auto-suspend av streaming on AG events(SCO or Call). The suspend shall
+          * be initiated by the app/audioflinger layers */
+         /* Support for browsing for SDP record should work only if we enable BROWSE
+          * while registering. */
+#if (AVRC_METADATA_INCLUDED == TRUE)
+         BTA_AvEnable(BTA_SEC_AUTHENTICATE,
+             BTA_AV_FEAT_RCTG|BTA_AV_FEAT_METADATA|BTA_AV_FEAT_VENDOR|BTA_AV_FEAT_NO_SCO_SSPD
+#if (AVRC_ADV_CTRL_INCLUDED == TRUE)
+             |BTA_AV_FEAT_RCCT
+             |BTA_AV_FEAT_ADV_CTRL
+#endif
+             ,bte_av_callback);
+#else
+         BTA_AvEnable(BTA_SEC_AUTHENTICATE, (BTA_AV_FEAT_RCTG | BTA_AV_FEAT_NO_SCO_SSPD),
+                      bte_av_callback);
+#endif
+         BTA_AvRegister(BTA_AV_CHNL_AUDIO, BTIF_AV_SERVICE_NAME, 0, bte_av_media_callback,
+                                                             UUID_SERVCLASS_AUDIO_SOURCE);
+     }
+     else {
+         BTA_AvDeregister(btif_av_cb.bta_handle);
+         BTA_AvDisable();
+     }
+     return BT_STATUS_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         btif_av_sink_execute_service
+**
+** Description      Initializes/Shuts down the service
+**
+** Returns          BT_STATUS_SUCCESS on success, BT_STATUS_FAIL otherwise
+**
+*******************************************************************************/
+bt_status_t btif_av_sink_execute_service(BOOLEAN b_enable)
+{
+     if (b_enable)
+     {
+         /* Added BTA_AV_FEAT_NO_SCO_SSPD - this ensures that the BTA does not
+          * auto-suspend av streaming on AG events(SCO or Call). The suspend shall
+          * be initiated by the app/audioflinger layers */
+         BTA_AvEnable(BTA_SEC_AUTHENTICATE, BTA_AV_FEAT_NO_SCO_SSPD|BTA_AV_FEAT_RCCT|
+                                            BTA_AV_FEAT_METADATA|BTA_AV_FEAT_VENDOR|
+                                            BTA_AV_FEAT_ADV_CTRL|BTA_AV_FEAT_RCTG,
+                                                                        bte_av_callback);
+         BTA_AvRegister(BTA_AV_CHNL_AUDIO, BTIF_AVK_SERVICE_NAME, 0, bte_av_media_callback,
+                                                                UUID_SERVCLASS_AUDIO_SINK);
+     }
+     else {
+         BTA_AvDeregister(btif_av_cb.bta_handle);
+         BTA_AvDisable();
+     }
+     return BT_STATUS_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         btif_av_get_src_interface
+**
+** Description      Get the AV callback interface for A2DP source profile
+**
+** Returns          btav_interface_t
+**
+*******************************************************************************/
+const btav_interface_t *btif_av_get_src_interface(void)
+{
+    BTIF_TRACE_EVENT("%s", __FUNCTION__);
+    return &bt_av_src_interface;
+}
+
+/*******************************************************************************
+**
+** Function         btif_av_get_sink_interface
+**
+** Description      Get the AV callback interface for A2DP sink profile
+**
+** Returns          btav_interface_t
+**
+*******************************************************************************/
+const btav_interface_t *btif_av_get_sink_interface(void)
+{
+    BTIF_TRACE_EVENT("%s", __FUNCTION__);
+    return &bt_av_sink_interface;
+}
+
+/*******************************************************************************
+**
+** Function         btif_av_is_connected
+**
+** Description      Checks if av has a connected sink
+**
+** Returns          BOOLEAN
+**
+*******************************************************************************/
+BOOLEAN btif_av_is_connected(void)
+{
+    btif_sm_state_t state = btif_sm_get_state(btif_av_cb.sm_handle);
+    return ((state == BTIF_AV_STATE_OPENED) || (state ==  BTIF_AV_STATE_STARTED));
+}
+
+/*******************************************************************************
+**
+** Function         btif_av_is_peer_edr
+**
+** Description      Check if the connected a2dp device supports
+**                  EDR or not. Only when connected this function
+**                  will accurately provide a true capability of
+**                  remote peer. If not connected it will always be false.
+**
+** Returns          TRUE if remote device is capable of EDR
+**
+*******************************************************************************/
+BOOLEAN btif_av_is_peer_edr(void)
+{
+    ASSERTC(btif_av_is_connected(), "No active a2dp connection", 0);
+
+    if (btif_av_cb.edr)
+        return TRUE;
+    else
+        return FALSE;
+}
+
+/******************************************************************************
+**
+** Function        btif_av_clear_remote_suspend_flag
+**
+** Description     Clears btif_av_cd.flags if BTIF_AV_FLAG_REMOTE_SUSPEND is set
+**
+** Returns          void
+******************************************************************************/
+void btif_av_clear_remote_suspend_flag(void)
+{
+    BTIF_TRACE_DEBUG("%s: flag :%x",__func__, btif_av_cb.flags);
+    btif_av_cb.flags &= ~BTIF_AV_FLAG_REMOTE_SUSPEND;
+}
+
+/*******************************************************************************
+**
+** Function         btif_av_peer_supports_3mbps
+**
+** Description      Check if the connected A2DP device supports
+**                  3 Mbps EDR. This function only works if connected.
+**                  If not connected it will always be false.
+**
+** Returns          TRUE if remote device is EDR and supports 3 Mbps
+**
+*******************************************************************************/
+BOOLEAN btif_av_peer_supports_3mbps(void)
+{
+    BOOLEAN is3mbps = ((btif_av_cb.edr & BTA_AV_EDR_3MBPS) != 0);
+    BTIF_TRACE_DEBUG("%s: connected %d, edr_3mbps %d", __func__,
+            btif_av_is_connected(), is3mbps);
+    return (btif_av_is_connected() && is3mbps);
+}
+#ifdef BLUETOOTH_RTK
+/******************************************************************************
+**
+** Function        btif_av_get_peer_role
+**
+** Description     true: peer is sink; false: peer is source
+**
+** Returns          BOOLEAN
+******************************************************************************/
+static BOOLEAN btif_av_get_peer_role(bt_bdaddr_t *bd_addr)
+{
+    bool peerIsSource = false;
+    bt_property_t remote_properties;
+    char uuid_a2dp[128] = "0000110b-0000-1000-8000-00805f9b34fb";
+    uuid_string_t *uuid_string = uuid_string_new();
+    bt_uuid_t remote_uuids[BT_MAX_NUM_UUIDS];
+    BTIF_STORAGE_FILL_PROPERTY(&remote_properties, BT_PROPERTY_UUIDS,sizeof(remote_uuids), remote_uuids);
+    btif_storage_get_remote_device_property(bd_addr,&remote_properties);
+    int i = 0;
+    for(i=0;i < remote_properties.len;i++){
+         uuid_to_string(&remote_uuids[i],uuid_string);
+         if(strcmp(uuid_a2dp,uuid_string_data(uuid_string)) == 0){
+              peerIsSource = true;
+              break;
+          }
+     }
+    uuid_string_free(uuid_string);
+    return peerIsSource;
+}
+#endif
diff --git a/rtkbt/code/bt/btif/src/btif_avrcp_audio_track.cpp b/rtkbt/code/bt/btif/src/btif_avrcp_audio_track.cpp
new file mode 100755
index 0000000..cd9cf9a
--- /dev/null
+++ b/rtkbt/code/bt/btif/src/btif_avrcp_audio_track.cpp
@@ -0,0 +1,152 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#include "btif_avrcp_audio_track.h"
+
+#include <media/AudioTrack.h>
+#include <utils/StrongPointer.h>
+
+#include "osi/include/log.h"
+
+using namespace android;
+
+typedef struct {
+    android::sp<android::AudioTrack> track;
+} BtifAvrcpAudioTrack;
+
+//#define DUMP_PCM_DATA TRUE
+#if (defined(DUMP_PCM_DATA) && (DUMP_PCM_DATA == TRUE))
+FILE *outputPcmSampleFile;
+char outputFilename[50] = "/data/misc/bluedroid/output_sample.pcm";
+#endif
+
+void *BtifAvrcpAudioTrackCreate(int trackFreq, int channelType)
+{
+    LOG_VERBOSE(LOG_TAG, "%s Track.cpp: btCreateTrack freq %d  channel %d ",
+                     __func__, trackFreq, channelType);
+    sp<android::AudioTrack> track =
+        new android::AudioTrack(AUDIO_STREAM_MUSIC, trackFreq, AUDIO_FORMAT_PCM_16_BIT,
+                                channelType, (size_t) 0 /*frameCount*/,
+                                (audio_output_flags_t)AUDIO_OUTPUT_FLAG_FAST,
+                                NULL /*callback_t*/, NULL /*void* user*/, 0 /*notificationFrames*/,
+                                AUDIO_SESSION_ALLOCATE, android::AudioTrack::TRANSFER_SYNC);
+    assert(track != NULL);
+
+    BtifAvrcpAudioTrack *trackHolder = new BtifAvrcpAudioTrack;
+    assert(trackHolder != NULL);
+    trackHolder->track = track;
+
+    if (trackHolder->track->initCheck() != 0)
+    {
+        return nullptr;
+    }
+
+#if (defined(DUMP_PCM_DATA) && (DUMP_PCM_DATA == TRUE))
+    outputPcmSampleFile = fopen(outputFilename, "ab");
+#endif
+    trackHolder->track->setVolume(1, 1);
+    return (void *)trackHolder;
+}
+
+void BtifAvrcpAudioTrackStart(void *handle)
+{
+    assert(handle != NULL);
+    BtifAvrcpAudioTrack *trackHolder = static_cast<BtifAvrcpAudioTrack*>(handle);
+    assert(trackHolder != NULL);
+    assert(trackHolder->track != NULL);
+    LOG_VERBOSE(LOG_TAG, "%s Track.cpp: btStartTrack", __func__);
+    trackHolder->track->start();
+}
+
+void BtifAvrcpAudioTrackStop(void *handle)
+{
+    if (handle == NULL) {
+        LOG_DEBUG(LOG_TAG, "%s handle is null.", __func__);
+        return;
+    }
+    BtifAvrcpAudioTrack *trackHolder = static_cast<BtifAvrcpAudioTrack*>(handle);
+    if (trackHolder != NULL && trackHolder->track != NULL) {
+        LOG_VERBOSE(LOG_TAG, "%s Track.cpp: btStartTrack", __func__);
+        trackHolder->track->stop();
+    }
+}
+
+void BtifAvrcpAudioTrackDelete(void *handle)
+{
+    if (handle == NULL) {
+        LOG_DEBUG(LOG_TAG, "%s handle is null.", __func__);
+        return;
+    }
+    BtifAvrcpAudioTrack *trackHolder = static_cast<BtifAvrcpAudioTrack*>(handle);
+    if (trackHolder != NULL && trackHolder->track != NULL) {
+        LOG_VERBOSE(LOG_TAG, "%s Track.cpp: btStartTrack", __func__);
+        delete trackHolder;
+    }
+
+#if (defined(DUMP_PCM_DATA) && (DUMP_PCM_DATA == TRUE))
+    if (outputPcmSampleFile)
+    {
+        fclose(outputPcmSampleFile);
+    }
+    outputPcmSampleFile = NULL;
+#endif
+}
+
+void BtifAvrcpAudioTrackPause(void *handle)
+{
+    if (handle == NULL) {
+        LOG_DEBUG(LOG_TAG, "%s handle is null.", __func__);
+        return;
+    }
+    BtifAvrcpAudioTrack *trackHolder = static_cast<BtifAvrcpAudioTrack*>(handle);
+    if (trackHolder != NULL && trackHolder->track != NULL) {
+        LOG_VERBOSE(LOG_TAG, "%s Track.cpp: btStartTrack", __func__);
+        trackHolder->track->pause();
+        trackHolder->track->flush();
+    }
+}
+
+void BtifAvrcpSetAudioTrackGain(void *handle, float gain)
+{
+    if (handle == NULL) {
+        LOG_DEBUG(LOG_TAG, "%s handle is null.", __func__);
+        return;
+    }
+    BtifAvrcpAudioTrack *trackHolder = static_cast<BtifAvrcpAudioTrack*>(handle);
+    if (trackHolder != NULL && trackHolder->track != NULL) {
+        LOG_VERBOSE(LOG_TAG, "%s set gain %f", __func__, gain);
+        trackHolder->track->setVolume(gain);
+    }
+}
+
+int BtifAvrcpAudioTrackWriteData(void *handle, void *audioBuffer, int bufferlen)
+{
+    BtifAvrcpAudioTrack *trackHolder = static_cast<BtifAvrcpAudioTrack*>(handle);
+    assert(trackHolder != NULL);
+    assert(trackHolder->track != NULL);
+    int retval = -1;
+#if (defined(DUMP_PCM_DATA) && (DUMP_PCM_DATA == TRUE))
+    if (outputPcmSampleFile)
+    {
+        fwrite ((audioBuffer), 1, (size_t)bufferlen, outputPcmSampleFile);
+    }
+#endif
+    retval = trackHolder->track->write(audioBuffer, (size_t)bufferlen);
+    LOG_VERBOSE(LOG_TAG, "%s Track.cpp: btWriteData len = %d ret = %d",
+                     __func__, bufferlen, retval);
+    return retval;
+}
diff --git a/rtkbt/code/bt/btif/src/btif_config.c b/rtkbt/code/bt/btif/src/btif_config.c
new file mode 100755
index 0000000..24a8c17
--- /dev/null
+++ b/rtkbt/code/bt/btif/src/btif_config.c
@@ -0,0 +1,585 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_btif_config"
+
+#include "btif_config.h"
+
+#include <assert.h>
+#include <ctype.h>
+#include <pthread.h>
+#include <stdio.h>
+#include <string.h>
+#include <time.h>
+#include <unistd.h>
+
+#include "bt_types.h"
+#include "btcore/include/bdaddr.h"
+#include "btcore/include/module.h"
+#include "btif_api.h"
+#include "btif_common.h"
+#include "btif_config.h"
+#include "btif_config_transcode.h"
+#include "btif_util.h"
+#include "osi/include/alarm.h"
+#include "osi/include/allocator.h"
+#include "osi/include/compat.h"
+#include "osi/include/config.h"
+#include "osi/include/log.h"
+#include "osi/include/osi.h"
+
+/**
+ * TODO(apanicke): cutils/properties.h is only being used to pull-in runtime
+ * settings on Android. Remove this conditional include once we have a generic
+ * way to obtain system properties.
+ */
+#if !defined(OS_GENERIC)
+#include <cutils/properties.h>
+#endif  /* !defined(OS_GENERIC) */
+
+#define INFO_SECTION "Info"
+#define FILE_TIMESTAMP "TimeCreated"
+#define FILE_SOURCE "FileSource"
+#define TIME_STRING_LENGTH sizeof("YYYY-MM-DD HH:MM:SS")
+static const char* TIME_STRING_FORMAT = "%Y-%m-%d %H:%M:%S";
+
+// TODO(armansito): Find a better way than searching by a hardcoded path.
+#if defined(OS_GENERIC)
+static const char *CONFIG_FILE_PATH = "bt_config.conf";
+static const char *CONFIG_BACKUP_PATH = "bt_config.bak";
+static const char *CONFIG_LEGACY_FILE_PATH = "bt_config.xml";
+#else  // !defined(OS_GENERIC)
+static const char *CONFIG_FILE_PATH = "/data/misc/bluedroid/bt_config.conf";
+static const char *CONFIG_BACKUP_PATH = "/data/misc/bluedroid/bt_config.bak";
+static const char *CONFIG_LEGACY_FILE_PATH = "/data/misc/bluedroid/bt_config.xml";
+#endif  // defined(OS_GENERIC)
+static const period_ms_t CONFIG_SETTLE_PERIOD_MS = 3000;
+
+static void timer_config_save_cb(void *data);
+static void btif_config_write(UINT16 event, char *p_param);
+static bool is_factory_reset(void);
+static void delete_config_files(void);
+static void btif_config_remove_unpaired(config_t *config);
+static void btif_config_remove_restricted(config_t *config);
+static config_t *btif_config_open(const char* filename);
+
+static enum ConfigSource {
+  NOT_LOADED,
+  ORIGINAL,
+  BACKUP,
+  LEGACY,
+  NEW_FILE,
+  RESET
+} btif_config_source = NOT_LOADED;
+
+static int btif_config_devices_loaded = -1;
+static char btif_config_time_created[TIME_STRING_LENGTH];
+
+// TODO(zachoverflow): Move these two functions out, because they are too specific for this file
+// {grumpy-cat/no, monty-python/you-make-me-sad}
+bool btif_get_device_type(const BD_ADDR bd_addr, int *p_device_type)
+{
+    if (p_device_type == NULL)
+        return FALSE;
+
+    bt_bdaddr_t bda;
+    bdcpy(bda.address, bd_addr);
+
+    bdstr_t bd_addr_str;
+    bdaddr_to_string(&bda, bd_addr_str, sizeof(bd_addr_str));
+
+    if (!btif_config_get_int(bd_addr_str, "DevType", p_device_type))
+        return FALSE;
+
+    LOG_DEBUG(LOG_TAG, "%s: Device [%s] type %d", __FUNCTION__, bd_addr_str, *p_device_type);
+    return TRUE;
+}
+
+bool btif_get_address_type(const BD_ADDR bd_addr, int *p_addr_type)
+{
+    if (p_addr_type == NULL)
+        return FALSE;
+
+    bt_bdaddr_t bda;
+    bdcpy(bda.address, bd_addr);
+
+    bdstr_t bd_addr_str;
+    bdaddr_to_string(&bda, bd_addr_str, sizeof(bd_addr_str));
+
+    if (!btif_config_get_int(bd_addr_str, "AddrType", p_addr_type))
+        return FALSE;
+
+    LOG_DEBUG(LOG_TAG, "%s: Device [%s] address type %d", __FUNCTION__, bd_addr_str, *p_addr_type);
+    return TRUE;
+}
+
+static pthread_mutex_t lock;  // protects operations on |config|.
+static config_t *config;
+static alarm_t *config_timer;
+
+// Module lifecycle functions
+
+static future_t *init(void) {
+  pthread_mutex_init(&lock, NULL);
+  pthread_mutex_lock(&lock);
+
+  if (is_factory_reset())
+    delete_config_files();
+
+  const char *file_source = NULL;
+
+  config = btif_config_open(CONFIG_FILE_PATH);
+  btif_config_source = ORIGINAL;
+  if (!config) {
+    LOG_WARN("%s unable to load config file: %s; using backup.",
+              __func__, CONFIG_FILE_PATH);
+    config = btif_config_open(CONFIG_BACKUP_PATH);
+    btif_config_source = BACKUP;
+    file_source = "Backup";
+  }
+  if (!config) {
+    LOG_WARN("%s unable to load backup; attempting to transcode legacy file.", __func__);
+    config = btif_config_transcode(CONFIG_LEGACY_FILE_PATH);
+    btif_config_source = LEGACY;
+    file_source = "Legacy";
+  }
+  if (!config) {
+    LOG_ERROR("%s unable to transcode legacy file; creating empty config.", __func__);
+    config = config_new_empty();
+    btif_config_source = NEW_FILE;
+    file_source = "Empty";
+  }
+
+  if (file_source != NULL)
+    config_set_string(config, INFO_SECTION, FILE_SOURCE, file_source);
+
+  if (!config) {
+    LOG_ERROR("%s unable to allocate a config object.", __func__);
+    goto error;
+  }
+
+  btif_config_remove_unpaired(config);
+
+  // Cleanup temporary pairings if we have left guest mode
+  if (!is_restricted_mode())
+    btif_config_remove_restricted(config);
+
+  // Read or set config file creation timestamp
+  const char* time_str = config_get_string(config, INFO_SECTION, FILE_TIMESTAMP, NULL);
+  if (time_str != NULL) {
+    strlcpy(btif_config_time_created, time_str, TIME_STRING_LENGTH);
+  } else {
+    time_t current_time = time(NULL);
+    struct tm* time_created = localtime(&current_time);
+    strftime(btif_config_time_created, TIME_STRING_LENGTH, TIME_STRING_FORMAT, time_created);
+    config_set_string(config, INFO_SECTION, FILE_TIMESTAMP, btif_config_time_created);
+  }
+
+  // TODO(sharvil): use a non-wake alarm for this once we have
+  // API support for it. There's no need to wake the system to
+  // write back to disk.
+  config_timer = alarm_new("btif.config");
+  if (!config_timer) {
+    LOG_ERROR(LOG_TAG, "%s unable to create alarm.", __func__);
+    goto error;
+  }
+
+  pthread_mutex_unlock(&lock);
+  return future_new_immediate(FUTURE_SUCCESS);
+
+error:
+  alarm_free(config_timer);
+  config_free(config);
+  pthread_mutex_unlock(&lock);
+  pthread_mutex_destroy(&lock);
+  config_timer = NULL;
+  config = NULL;
+  btif_config_source = NOT_LOADED;
+  return future_new_immediate(FUTURE_FAIL);
+}
+
+static config_t *btif_config_open(const char *filename) {
+  config_t *config = config_new(filename);
+  if (!config)
+    return NULL;
+
+  if (!config_has_section(config, "Adapter")) {
+    LOG_ERROR(LOG_TAG, "Config is missing adapter section");
+    config_free(config);
+    return NULL;
+  }
+
+  return config;
+}
+
+static future_t *shut_down(void) {
+  btif_config_flush();
+  return future_new_immediate(FUTURE_SUCCESS);
+}
+
+static future_t *clean_up(void) {
+  btif_config_flush();
+
+  alarm_free(config_timer);
+  config_free(config);
+  pthread_mutex_destroy(&lock);
+  config_timer = NULL;
+  config = NULL;
+  return future_new_immediate(FUTURE_SUCCESS);
+}
+
+EXPORT_SYMBOL const module_t btif_config_module = {
+  .name = BTIF_CONFIG_MODULE,
+  .init = init,
+  .start_up = NULL,
+  .shut_down = shut_down,
+  .clean_up = clean_up,
+  .dependencies = {
+    NULL
+  }
+};
+
+bool btif_config_has_section(const char *section) {
+  assert(config != NULL);
+  assert(section != NULL);
+
+  pthread_mutex_lock(&lock);
+  bool ret = config_has_section(config, section);
+  pthread_mutex_unlock(&lock);
+
+  return ret;
+}
+
+bool btif_config_exist(const char *section, const char *key) {
+  assert(config != NULL);
+  assert(section != NULL);
+  assert(key != NULL);
+
+  pthread_mutex_lock(&lock);
+  bool ret = config_has_key(config, section, key);
+  pthread_mutex_unlock(&lock);
+
+  return ret;
+}
+
+bool btif_config_get_int(const char *section, const char *key, int *value) {
+  assert(config != NULL);
+  assert(section != NULL);
+  assert(key != NULL);
+  assert(value != NULL);
+
+  pthread_mutex_lock(&lock);
+  bool ret = config_has_key(config, section, key);
+  if (ret)
+    *value = config_get_int(config, section, key, *value);
+  pthread_mutex_unlock(&lock);
+
+  return ret;
+}
+
+bool btif_config_set_int(const char *section, const char *key, int value) {
+  assert(config != NULL);
+  assert(section != NULL);
+  assert(key != NULL);
+
+  pthread_mutex_lock(&lock);
+  config_set_int(config, section, key, value);
+  pthread_mutex_unlock(&lock);
+
+  return true;
+}
+
+bool btif_config_get_str(const char *section, const char *key, char *value, int *size_bytes) {
+  assert(config != NULL);
+  assert(section != NULL);
+  assert(key != NULL);
+  assert(value != NULL);
+  assert(size_bytes != NULL);
+
+  pthread_mutex_lock(&lock);
+  const char *stored_value = config_get_string(config, section, key, NULL);
+  pthread_mutex_unlock(&lock);
+
+  if (!stored_value)
+    return false;
+
+  strlcpy(value, stored_value, *size_bytes);
+  *size_bytes = strlen(value) + 1;
+
+  return true;
+}
+
+bool btif_config_set_str(const char *section, const char *key, const char *value) {
+  assert(config != NULL);
+  assert(section != NULL);
+  assert(key != NULL);
+  assert(value != NULL);
+
+  pthread_mutex_lock(&lock);
+  config_set_string(config, section, key, value);
+  pthread_mutex_unlock(&lock);
+
+  return true;
+}
+
+bool btif_config_get_bin(const char *section, const char *key, uint8_t *value, size_t *length) {
+  assert(config != NULL);
+  assert(section != NULL);
+  assert(key != NULL);
+  assert(value != NULL);
+  assert(length != NULL);
+
+  pthread_mutex_lock(&lock);
+  const char *value_str = config_get_string(config, section, key, NULL);
+  pthread_mutex_unlock(&lock);
+
+  if (!value_str)
+    return false;
+
+  size_t value_len = strlen(value_str);
+  if ((value_len % 2) != 0 || *length < (value_len / 2))
+    return false;
+
+  for (size_t i = 0; i < value_len; ++i)
+    if (!isxdigit(value_str[i]))
+      return false;
+
+  for (*length = 0; *value_str; value_str += 2, *length += 1)
+    sscanf(value_str, "%02hhx", &value[*length]);
+
+  return true;
+}
+
+size_t btif_config_get_bin_length(const char *section, const char *key) {
+  assert(config != NULL);
+  assert(section != NULL);
+  assert(key != NULL);
+
+  pthread_mutex_lock(&lock);
+  const char *value_str = config_get_string(config, section, key, NULL);
+  pthread_mutex_unlock(&lock);
+
+  if (!value_str)
+    return 0;
+
+  size_t value_len = strlen(value_str);
+  return ((value_len % 2) != 0) ? 0 : (value_len / 2);
+}
+
+bool btif_config_set_bin(const char *section, const char *key, const uint8_t *value, size_t length) {
+  const char *lookup = "0123456789abcdef";
+
+  assert(config != NULL);
+  assert(section != NULL);
+  assert(key != NULL);
+
+  if (length > 0)
+      assert(value != NULL);
+
+  char *str = (char *)osi_calloc(length * 2 + 1);
+
+  for (size_t i = 0; i < length; ++i) {
+    str[(i * 2) + 0] = lookup[(value[i] >> 4) & 0x0F];
+    str[(i * 2) + 1] = lookup[value[i] & 0x0F];
+  }
+
+  pthread_mutex_lock(&lock);
+  config_set_string(config, section, key, str);
+  pthread_mutex_unlock(&lock);
+
+  osi_free(str);
+  return true;
+}
+
+const btif_config_section_iter_t *btif_config_section_begin(void) {
+  assert(config != NULL);
+  return (const btif_config_section_iter_t *)config_section_begin(config);
+}
+
+const btif_config_section_iter_t *btif_config_section_end(void) {
+  assert(config != NULL);
+  return (const btif_config_section_iter_t *)config_section_end(config);
+}
+
+const btif_config_section_iter_t *btif_config_section_next(const btif_config_section_iter_t *section) {
+  assert(config != NULL);
+  assert(section != NULL);
+  return (const btif_config_section_iter_t *)config_section_next((const config_section_node_t *)section);
+}
+
+const char *btif_config_section_name(const btif_config_section_iter_t *section) {
+  assert(config != NULL);
+  assert(section != NULL);
+  return config_section_name((const config_section_node_t *)section);
+}
+
+bool btif_config_remove(const char *section, const char *key) {
+  assert(config != NULL);
+  assert(section != NULL);
+  assert(key != NULL);
+
+  pthread_mutex_lock(&lock);
+  bool ret = config_remove_key(config, section, key);
+  pthread_mutex_unlock(&lock);
+
+  return ret;
+}
+
+void btif_config_save(void) {
+  assert(config != NULL);
+  assert(config_timer != NULL);
+
+  alarm_set(config_timer, CONFIG_SETTLE_PERIOD_MS, timer_config_save_cb, NULL);
+}
+
+void btif_config_flush(void) {
+  assert(config != NULL);
+  assert(config_timer != NULL);
+
+  alarm_cancel(config_timer);
+  btif_config_write(0, NULL);
+}
+
+bool btif_config_clear(void) {
+  assert(config != NULL);
+  assert(config_timer != NULL);
+
+  alarm_cancel(config_timer);
+
+  pthread_mutex_lock(&lock);
+  config_free(config);
+
+  config = config_new_empty();
+  if (config == NULL) {
+    pthread_mutex_unlock(&lock);
+    return false;
+  }
+
+  bool ret = config_save(config, CONFIG_FILE_PATH);
+  btif_config_source = RESET;
+  pthread_mutex_unlock(&lock);
+  return ret;
+}
+
+static void timer_config_save_cb(UNUSED_ATTR void *data) {
+  // Moving file I/O to btif context instead of timer callback because
+  // it usually takes a lot of time to be completed, introducing
+  // delays during A2DP playback causing blips or choppiness.
+  btif_transfer_context(btif_config_write, 0, NULL, 0, NULL);
+}
+
+static void btif_config_write(UNUSED_ATTR UINT16 event, UNUSED_ATTR char *p_param) {
+  assert(config != NULL);
+  assert(config_timer != NULL);
+
+  pthread_mutex_lock(&lock);
+  rename(CONFIG_FILE_PATH, CONFIG_BACKUP_PATH);
+  config_t *config_paired = config_new_clone(config);
+  btif_config_remove_unpaired(config_paired);
+  config_save(config_paired, CONFIG_FILE_PATH);
+  config_free(config_paired);
+  pthread_mutex_unlock(&lock);
+}
+
+static void btif_config_remove_unpaired(config_t *conf) {
+  assert(conf != NULL);
+  int paired_devices = 0;
+
+  // The paired config used to carry information about
+  // discovered devices during regular inquiry scans.
+  // We remove these now and cache them in memory instead.
+  const config_section_node_t *snode = config_section_begin(conf);
+  while (snode != config_section_end(conf)) {
+    const char *section = config_section_name(snode);
+    if (string_is_bdaddr(section)) {
+      if (!config_has_key(conf, section, "LinkKey") &&
+          !config_has_key(conf, section, "LE_KEY_PENC") &&
+          !config_has_key(conf, section, "LE_KEY_PID") &&
+          !config_has_key(conf, section, "LE_KEY_PCSRK") &&
+          !config_has_key(conf, section, "LE_KEY_LENC") &&
+          !config_has_key(conf, section, "LE_KEY_LCSRK")) {
+        snode = config_section_next(snode);
+        config_remove_section(conf, section);
+        continue;
+      }
+      paired_devices++;
+    }
+    snode = config_section_next(snode);
+  }
+
+  // should only happen once, at initial load time
+  if (btif_config_devices_loaded == -1)
+    btif_config_devices_loaded = paired_devices;
+}
+
+void btif_debug_config_dump(int fd) {
+    dprintf(fd, "\nBluetooth Config:\n");
+
+    dprintf(fd, "  Config Source: ");
+    switch(btif_config_source) {
+        case NOT_LOADED:
+            dprintf(fd, "Not loaded\n");
+            break;
+        case ORIGINAL:
+            dprintf(fd, "Original file\n");
+            break;
+        case BACKUP:
+            dprintf(fd, "Backup file\n");
+            break;
+        case LEGACY:
+            dprintf(fd, "Legacy file\n");
+            break;
+        case NEW_FILE:
+            dprintf(fd, "New file\n");
+            break;
+        case RESET:
+            dprintf(fd, "Reset file\n");
+            break;
+    }
+
+    dprintf(fd, "  Devices loaded: %d\n", btif_config_devices_loaded);
+    dprintf(fd, "  File created/tagged: %s\n", btif_config_time_created);
+    dprintf(fd, "  File source: %s\n", config_get_string(config, INFO_SECTION,
+                                           FILE_SOURCE, "Original"));
+}
+
+static void btif_config_remove_restricted(config_t* config) {
+  assert(config != NULL);
+
+  const config_section_node_t *snode = config_section_begin(config);
+  while (snode != config_section_end(config)) {
+    const char *section = config_section_name(snode);
+    if (string_is_bdaddr(section) && config_has_key(config, section, "Restricted")) {
+        BTIF_TRACE_DEBUG("%s: Removing restricted device %s", __func__, section);
+        config_remove_section(config, section);
+    }
+    snode = config_section_next(snode);
+  }
+}
+
+static bool is_factory_reset(void) {
+  char factory_reset[PROPERTY_VALUE_MAX] = {0};
+  property_get("persist.bluetooth.factoryreset", factory_reset, "false");
+  return strncmp(factory_reset, "true", 4) == 0;
+}
+
+static void delete_config_files(void) {
+  remove(CONFIG_FILE_PATH);
+  remove(CONFIG_BACKUP_PATH);
+  property_set("persist.bluetooth.factoryreset", "false");
+}
diff --git a/rtkbt/code/bt/btif/src/btif_config_transcode.cpp b/rtkbt/code/bt/btif/src/btif_config_transcode.cpp
new file mode 100755
index 0000000..e9d859e
--- /dev/null
+++ b/rtkbt/code/bt/btif/src/btif_config_transcode.cpp
@@ -0,0 +1,62 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_btif_config_transcode"
+
+#include <tinyxml2.h>
+
+extern "C" {
+#include "osi/include/config.h"
+#include "osi/include/log.h"
+}
+
+using namespace tinyxml2;
+
+extern "C" config_t *btif_config_transcode(const char *xml_filename) {
+  XMLDocument document;
+  int error = document.LoadFile(xml_filename);
+  if (error != XML_SUCCESS) {
+    LOG_ERROR("%s unable to load XML file '%s': %d", __func__, xml_filename, error);
+    return NULL;
+  }
+
+  XMLElement *rootElement = document.RootElement();
+  if (!rootElement) {
+    LOG_ERROR("%s unable to find root element; assuming corrupted config file.", __func__);
+    return NULL;
+  }
+
+  config_t *config = config_new_empty();
+  if (!config) {
+    LOG_ERROR("%s unable to allocate config object.", __func__);
+    return NULL;
+  }
+
+  for (XMLElement *i = rootElement->FirstChildElement(); i != NULL; i = i->NextSiblingElement())
+    for (XMLElement *j = i->FirstChildElement(); j != NULL; j = j->NextSiblingElement()) {
+      const char *section = j->Attribute("Tag");
+      for (XMLElement *k = j->FirstChildElement(); k != NULL; k = k->NextSiblingElement()) {
+        const char *key = k->Attribute("Tag");
+        const char *value = k->GetText();
+        if (section && key && value)
+          config_set_string(config, section, key, value);
+      }
+    }
+
+  return config;
+}
diff --git a/rtkbt/code/bt/btif/src/btif_core.c b/rtkbt/code/bt/btif/src/btif_core.c
new file mode 100755
index 0000000..c2d7eba
--- /dev/null
+++ b/rtkbt/code/bt/btif/src/btif_core.c
@@ -0,0 +1,1379 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 The Android Open Source Project
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/************************************************************************************
+ *
+ *  Filename:      btif_core.c
+ *
+ *  Description:   Contains core functionality related to interfacing between
+ *                 Bluetooth HAL and BTE core stack.
+ *
+ ***********************************************************************************/
+
+#define LOG_TAG "bt_btif_core"
+
+#include <ctype.h>
+#include <dirent.h>
+#include <fcntl.h>
+#include <hardware/bluetooth.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include "bdaddr.h"
+#include "bt_utils.h"
+#include "bta_api.h"
+#include "bte.h"
+#include "btif_api.h"
+#include "btif_av.h"
+#include "btif_config.h"
+#include "btif_config.h"
+#include "btif_pan.h"
+#include "btif_profile_queue.h"
+#include "btif_sock.h"
+#include "btif_storage.h"
+#include "btif_uid.h"
+#include "btif_util.h"
+#include "btu.h"
+#include "device/include/controller.h"
+#include "bt_common.h"
+#include "osi/include/fixed_queue.h"
+#include "osi/include/future.h"
+#include "osi/include/log.h"
+#include "osi/include/osi.h"
+#include "osi/include/properties.h"
+#include "osi/include/thread.h"
+#include "stack_manager.h"
+#ifdef BLUETOOTH_RTK_API
+#include "rtkbt_api.h"
+#include "uipc.h"
+#include "btcore/include/module.h"
+#endif
+
+/************************************************************************************
+**  Constants & Macros
+************************************************************************************/
+
+#ifndef BTE_DID_CONF_FILE
+// TODO(armansito): Find a better way than searching by a hardcoded path.
+#if defined(OS_GENERIC)
+#define BTE_DID_CONF_FILE "bt_did.conf"
+#else  // !defined(OS_GENERIC)
+#define BTE_DID_CONF_FILE "/etc/bluetooth/bt_did.conf"
+#endif  // defined(OS_GENERIC)
+#endif  // BTE_DID_CONF_FILE
+
+/************************************************************************************
+**  Local type definitions
+************************************************************************************/
+
+/* These type definitions are used when passing data from the HAL to BTIF context
+*  in the downstream path for the adapter and remote_device property APIs */
+
+typedef struct {
+  bt_bdaddr_t bd_addr;
+  bt_property_type_t type;
+} btif_storage_read_t;
+
+typedef struct {
+  bt_bdaddr_t bd_addr;
+  bt_property_t prop;
+} btif_storage_write_t;
+
+typedef union {
+  btif_storage_read_t read_req;
+  btif_storage_write_t write_req;
+} btif_storage_req_t;
+
+typedef enum {
+    BTIF_CORE_STATE_DISABLED = 0,
+    BTIF_CORE_STATE_ENABLING,
+    BTIF_CORE_STATE_ENABLED,
+    BTIF_CORE_STATE_DISABLING
+} btif_core_state_t;
+
+/************************************************************************************
+**  Static variables
+************************************************************************************/
+
+bt_bdaddr_t btif_local_bd_addr;
+
+static tBTA_SERVICE_MASK btif_enabled_services = 0;
+
+/*
+* This variable should be set to 1, if the Bluedroid+BTIF libraries are to
+* function in DUT mode.
+*
+* To set this, the btif_init_bluetooth needs to be called with argument as 1
+*/
+static UINT8 btif_dut_mode = 0;
+
+static thread_t *bt_jni_workqueue_thread;
+static const char *BT_JNI_WORKQUEUE_NAME = "bt_jni_workqueue";
+static uid_set_t* uid_set = NULL;
+
+/************************************************************************************
+**  Static functions
+************************************************************************************/
+static void btif_jni_associate(UNUSED_ATTR uint16_t event, UNUSED_ATTR char *p_param);
+static void btif_jni_disassociate();
+static bool btif_fetch_property(const char *key, bt_bdaddr_t *addr);
+
+/* sends message to btif task */
+static void btif_sendmsg(void *p_msg);
+
+/************************************************************************************
+**  Externs
+************************************************************************************/
+extern fixed_queue_t *btu_hci_msg_queue;
+
+extern void bte_load_did_conf(const char *p_path);
+
+/** TODO: Move these to _common.h */
+void bte_main_boot_entry(void);
+void bte_main_disable(void);
+void bte_main_cleanup(void);
+#if (defined(HCILP_INCLUDED) && HCILP_INCLUDED == TRUE)
+void bte_main_enable_lpm(BOOLEAN enable);
+#endif
+void bte_main_postload_cfg(void);
+void btif_dm_execute_service_request(UINT16 event, char *p_param);
+#ifdef BTIF_DM_OOB_TEST
+void btif_dm_load_local_oob(void);
+#endif
+void bte_main_config_hci_logging(BOOLEAN enable, BOOLEAN bt_disabled);
+
+/*******************************************************************************
+**
+** Function         btif_context_switched
+**
+** Description      Callback used to execute transferred context callback
+**
+**                  p_msg : message to be executed in btif context
+**
+** Returns          void
+**
+*******************************************************************************/
+
+static void btif_context_switched(void *p_msg)
+{
+
+    BTIF_TRACE_VERBOSE("btif_context_switched");
+
+    tBTIF_CONTEXT_SWITCH_CBACK *p = (tBTIF_CONTEXT_SWITCH_CBACK *) p_msg;
+
+    /* each callback knows how to parse the data */
+    if (p->p_cb)
+        p->p_cb(p->event, p->p_param);
+}
+
+
+/*******************************************************************************
+**
+** Function         btif_transfer_context
+**
+** Description      This function switches context to btif task
+**
+**                  p_cback   : callback used to process message in btif context
+**                  event     : event id of message
+**                  p_params  : parameter area passed to callback (copied)
+**                  param_len : length of parameter area
+**                  p_copy_cback : If set this function will be invoked for deep copy
+**
+** Returns          void
+**
+*******************************************************************************/
+
+bt_status_t btif_transfer_context (tBTIF_CBACK *p_cback, UINT16 event, char* p_params, int param_len, tBTIF_COPY_CBACK *p_copy_cback)
+{
+    tBTIF_CONTEXT_SWITCH_CBACK *p_msg =
+        (tBTIF_CONTEXT_SWITCH_CBACK *)osi_malloc(sizeof(tBTIF_CONTEXT_SWITCH_CBACK) + param_len);
+
+    BTIF_TRACE_VERBOSE("btif_transfer_context event %d, len %d", event, param_len);
+
+    /* allocate and send message that will be executed in btif context */
+    p_msg->hdr.event = BT_EVT_CONTEXT_SWITCH_EVT; /* internal event */
+    p_msg->p_cb = p_cback;
+
+    p_msg->event = event;                         /* callback event */
+
+    /* check if caller has provided a copy callback to do the deep copy */
+    if (p_copy_cback) {
+        p_copy_cback(event, p_msg->p_param, p_params);
+    } else if (p_params) {
+        memcpy(p_msg->p_param, p_params, param_len);  /* callback parameter data */
+    }
+
+    btif_sendmsg(p_msg);
+
+    return BT_STATUS_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         btif_is_dut_mode
+**
+** Description      checks if BTIF is currently in DUT mode
+**
+** Returns          1 if test mode, otherwize 0
+**
+*******************************************************************************/
+
+UINT8 btif_is_dut_mode(void)
+{
+    return (btif_dut_mode == 1);
+}
+
+/*******************************************************************************
+**
+** Function         btif_is_enabled
+**
+** Description      checks if main adapter is fully enabled
+**
+** Returns          1 if fully enabled, otherwize 0
+**
+*******************************************************************************/
+
+int btif_is_enabled(void)
+{
+    return ((!btif_is_dut_mode()) && (stack_manager_get_interface()->get_stack_is_running()));
+}
+
+void btif_init_ok(UNUSED_ATTR uint16_t event, UNUSED_ATTR char *p_param) {
+  BTIF_TRACE_DEBUG("btif_task: received trigger stack init event");
+#if (BLE_INCLUDED == TRUE)
+  btif_dm_load_ble_local_keys();
+#endif
+  BTA_EnableBluetooth(bte_dm_evt);
+}
+
+/*******************************************************************************
+**
+** Function         btif_task
+**
+** Description      BTIF task handler managing all messages being passed
+**                  Bluetooth HAL and BTA.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bt_jni_msg_ready(void *context) {
+  BT_HDR *p_msg = (BT_HDR *)context;
+
+  BTIF_TRACE_VERBOSE("btif task fetched event %x", p_msg->event);
+
+  switch (p_msg->event) {
+    case BT_EVT_CONTEXT_SWITCH_EVT:
+      btif_context_switched(p_msg);
+      break;
+    default:
+      BTIF_TRACE_ERROR("unhandled btif event (%d)", p_msg->event & BT_EVT_MASK);
+      break;
+  }
+  osi_free(p_msg);
+}
+
+/*******************************************************************************
+**
+** Function         btif_sendmsg
+**
+** Description      Sends msg to BTIF task
+**
+** Returns          void
+**
+*******************************************************************************/
+
+void btif_sendmsg(void *p_msg)
+{
+  if (!bt_jni_workqueue_thread) {
+    BTIF_TRACE_ERROR("%s: message dropped, queue not initialized or gone", __func__);
+    osi_free(p_msg);
+    return;
+  }
+
+  thread_post(bt_jni_workqueue_thread, bt_jni_msg_ready, p_msg);
+}
+
+void btif_thread_post(thread_fn func, void *context) {
+  if (!bt_jni_workqueue_thread) {
+    BTIF_TRACE_ERROR("%s: call dropped, queue not initialized or gone", __func__);
+    return;
+  }
+
+  thread_post(bt_jni_workqueue_thread, func, context);
+}
+
+static bool btif_fetch_property(const char *key, bt_bdaddr_t *addr) {
+    char val[PROPERTY_VALUE_MAX] = {0};
+
+    if (osi_property_get(key, val, NULL)) {
+        if (string_to_bdaddr(val, addr)) {
+            BTIF_TRACE_DEBUG("%s: Got BDA %s", __func__, val);
+            return TRUE;
+        }
+        BTIF_TRACE_DEBUG("%s: System Property did not contain valid bdaddr", __func__);
+    }
+    return FALSE;
+}
+
+static void btif_fetch_local_bdaddr(bt_bdaddr_t *local_addr)
+{
+    char val[PROPERTY_VALUE_MAX] = {0};
+    uint8_t valid_bda = FALSE;
+    int val_size = 0;
+
+    const uint8_t null_bdaddr[BD_ADDR_LEN] = {0,0,0,0,0,0};
+
+    {// cmy@2012-11-28: Get local bdaddr from vflash
+        int vflash_fd = open("/dev/vflash", O_RDONLY);
+        if (vflash_fd > 0)
+        {
+            char bd_addr[6] = {0};
+            BTIF_TRACE_ERROR("Get local bdaddr from vflash");
+            #define VFLASH_READ_BDA  0x01
+            if(ioctl(vflash_fd, VFLASH_READ_BDA, (unsigned long)bd_addr) >= 0
+                && memcmp(bd_addr, null_bdaddr, BD_ADDR_LEN) != 0)
+            {
+                local_addr->address[0] = bd_addr[5];
+                local_addr->address[1] = bd_addr[4];
+                local_addr->address[2] = bd_addr[3];
+                local_addr->address[3] = bd_addr[2];
+                local_addr->address[4] = bd_addr[1];
+                local_addr->address[5] = bd_addr[0];
+
+                //local_addr->address[0] = local_addr->address[0] << 1;
+                valid_bda = TRUE;
+                BTIF_TRACE_ERROR("Got Factory BDA %02X:%02X:%02X:%02X:%02X:%02X",
+                    local_addr->address[0], local_addr->address[1], local_addr->address[2],
+                    local_addr->address[3], local_addr->address[4], local_addr->address[5]);
+            }
+            close(vflash_fd);
+        }
+    }
+    /* Get local bdaddr storage path from property */
+    if (!valid_bda && osi_property_get(PROPERTY_BT_BDADDR_PATH, val, NULL))
+    {
+        int addr_fd;
+
+        BTIF_TRACE_ERROR("%s, local bdaddr is stored in %s", __func__, val);
+
+        if ((addr_fd = open(val, O_RDONLY)) != -1)
+        {
+            memset(val, 0, sizeof(val));
+            read(addr_fd, val, FACTORY_BT_BDADDR_STORAGE_LEN);
+            /* If this is not a reserved/special bda, then use it */
+            if ((string_to_bdaddr(val, local_addr)) &&
+                (memcmp(local_addr->address, null_bdaddr, BD_ADDR_LEN) != 0))
+            {
+                valid_bda = TRUE;
+                BTIF_TRACE_ERROR("%s: Got Factory BDA %s", __func__, val);
+            }
+            close(addr_fd);
+        }
+    }
+
+    if(!valid_bda)
+    {
+        val_size = sizeof(val);
+        if(btif_config_get_str("Adapter", "Address", val, &val_size))
+        {
+            string_to_bdaddr(val, local_addr);
+            BTIF_TRACE_ERROR("local bdaddr from bt_config.xml is  %s", val);
+            return;
+        }
+     }
+
+    /* No factory BDADDR found. Look for previously generated random BDA */
+    if (!valid_bda) {
+        valid_bda = btif_fetch_property(PERSIST_BDADDR_PROPERTY, local_addr);
+    }
+
+    /* No BDADDR found in file. Look for BDA in factory property */
+    if (!valid_bda) {
+        valid_bda = btif_fetch_property(FACTORY_BT_ADDR_PROPERTY, local_addr);
+    }
+
+    /* Generate new BDA if necessary */
+    if (!valid_bda)
+    {
+        bdstr_t bdstr;
+
+        /* No autogen BDA. Generate one now. */
+        local_addr->address[0] = 0x22;
+        local_addr->address[1] = 0x22;
+        local_addr->address[2] = (uint8_t) osi_rand();
+        local_addr->address[3] = (uint8_t) osi_rand();
+        local_addr->address[4] = (uint8_t) osi_rand();
+        local_addr->address[5] = (uint8_t) osi_rand();
+
+        /* Convert to ascii, and store as a persistent property */
+        bdaddr_to_string(local_addr, bdstr, sizeof(bdstr));
+
+        BTIF_TRACE_ERROR("No preset BDA. Generating BDA: %s for prop %s",
+             (char*)bdstr, PERSIST_BDADDR_PROPERTY);
+
+        if (osi_property_set(PERSIST_BDADDR_PROPERTY, (char*)bdstr) < 0)
+            BTIF_TRACE_ERROR("Failed to set random BDA in prop %s",PERSIST_BDADDR_PROPERTY);
+    }
+
+    //save the bd address to config file
+    bdstr_t bdstr;
+    bdaddr_to_string(local_addr, bdstr, sizeof(bdstr));
+    val_size = sizeof(val);
+    if (btif_config_get_str("Adapter", "Address", val, &val_size))
+    {
+        if (strcmp(bdstr, val) ==0)
+        {
+            // BDA is already present in the config file.
+            return;
+        }
+    }
+    btif_config_set_str("Adapter", "Address", bdstr);
+}
+
+/*******************************************************************************
+**
+** Function         btif_init_bluetooth
+**
+** Description      Creates BTIF task and prepares BT scheduler for startup
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+bt_status_t btif_init_bluetooth() {
+  LOG_DEBUG(LOG_TAG, "%s", __func__);
+  bte_main_boot_entry();
+
+  /* As part of the init, fetch the local BD ADDR */
+  memset(&btif_local_bd_addr, 0, sizeof(bt_bdaddr_t));
+  btif_fetch_local_bdaddr(&btif_local_bd_addr);
+
+  bt_jni_workqueue_thread = thread_new(BT_JNI_WORKQUEUE_NAME);
+  if (bt_jni_workqueue_thread == NULL) {
+    LOG_ERROR(LOG_TAG, "%s Unable to create thread %s", __func__, BT_JNI_WORKQUEUE_NAME);
+    goto error_exit;
+  }
+
+  // Associate this workqueue thread with jni.
+  btif_transfer_context(btif_jni_associate, 0, NULL, 0, NULL);
+
+  return BT_STATUS_SUCCESS;
+
+error_exit:;
+     thread_free(bt_jni_workqueue_thread);
+
+     bt_jni_workqueue_thread = NULL;
+
+     return BT_STATUS_FAIL;
+}
+
+/*******************************************************************************
+**
+** Function         btif_enable_bluetooth_evt
+**
+** Description      Event indicating bluetooth enable is completed
+**                  Notifies HAL user with updated adapter state
+**
+** Returns          void
+**
+*******************************************************************************/
+
+void btif_enable_bluetooth_evt(tBTA_STATUS status)
+{
+    const controller_t *controller = controller_get_interface();
+    bdstr_t bdstr;
+    bdaddr_to_string(controller->get_address(), bdstr, sizeof(bdstr));
+
+    BTIF_TRACE_DEBUG("%s: status %d, local bd [%s]", __FUNCTION__, status, bdstr);
+
+    if (bdcmp(btif_local_bd_addr.address, controller->get_address()->address))
+    {
+        // TODO(zachoverflow): this whole code path seems like a bad time waiting to happen
+        // We open the vendor library using the old address.
+        bdstr_t old_address;
+        bt_property_t prop;
+
+        bdaddr_to_string(&btif_local_bd_addr, old_address, sizeof(old_address));
+
+        /**
+         * The Controller's BDADDR does not match to the BTIF's initial BDADDR!
+         * This could be because the factory BDADDR was stored separately in
+         * the Controller's non-volatile memory rather than in device's file
+         * system.
+         **/
+        BTIF_TRACE_WARNING("***********************************************");
+        BTIF_TRACE_WARNING("BTIF init BDA was %s", old_address);
+        BTIF_TRACE_WARNING("Controller BDA is %s", bdstr);
+        BTIF_TRACE_WARNING("***********************************************");
+
+        btif_local_bd_addr = *controller->get_address();
+
+        //save the bd address to config file
+        btif_config_set_str("Adapter", "Address", bdstr);
+        btif_config_save();
+
+        //fire HAL callback for property change
+        prop.type = BT_PROPERTY_BDADDR;
+        prop.val = (void*)&btif_local_bd_addr;
+        prop.len = sizeof(bt_bdaddr_t);
+        HAL_CBACK(bt_hal_cbacks, adapter_properties_cb, BT_STATUS_SUCCESS, 1, &prop);
+    }
+
+    bte_main_postload_cfg();
+#if (defined(HCILP_INCLUDED) && HCILP_INCLUDED == TRUE)
+    bte_main_enable_lpm(TRUE);
+#endif
+    /* add passing up bd address as well ? */
+
+    /* callback to HAL */
+    if (status == BTA_SUCCESS)
+    {
+        uid_set = uid_set_create();
+
+        btif_dm_init(uid_set);
+
+        /* init rfcomm & l2cap api */
+        btif_sock_init(uid_set);
+
+        /* init pan */
+        btif_pan_init();
+
+        /* load did configuration */
+        bte_load_did_conf(BTE_DID_CONF_FILE);
+
+#ifdef BTIF_DM_OOB_TEST
+        btif_dm_load_local_oob();
+#endif
+#ifdef BLUETOOTH_RTK_API
+        rtkbt_api_Hook(RTKBT_HOOK_ENABLE_BT_COMPLETE, (void *)BT_STATE_ON, 0);
+#endif
+        future_ready(stack_manager_get_hack_future(), FUTURE_SUCCESS);
+    }
+    else
+    {
+        /* cleanup rfcomm & l2cap api */
+        btif_sock_cleanup();
+
+        btif_pan_cleanup();
+#ifdef BLUETOOTH_RTK_API
+        rtkbt_api_Hook(RTKBT_HOOK_ENABLE_BT_COMPLETE, (void *)BT_STATE_OFF, 0);
+#endif
+        future_ready(stack_manager_get_hack_future(), FUTURE_FAIL);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btif_disable_bluetooth
+**
+** Description      Inititates shutdown of Bluetooth system.
+**                  Any active links will be dropped and device entering
+**                  non connectable/discoverable mode
+**
+** Returns          void
+**
+*******************************************************************************/
+bt_status_t btif_disable_bluetooth(void)
+{
+    BTIF_TRACE_DEBUG("BTIF DISABLE BLUETOOTH");
+
+    btif_dm_on_disable();
+#ifdef BLUETOOTH_RTK_API
+    rtkbt_api_Hook(RTKBT_HOOK_DISABLE_BT_BEGIN, 0, 0);
+#endif
+    /* cleanup rfcomm & l2cap api */
+    btif_sock_cleanup();
+    btif_pan_cleanup();
+    BTA_DisableBluetooth();
+
+    return BT_STATUS_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         btif_disable_bluetooth_evt
+**
+** Description      Event notifying BT disable is now complete.
+**                  Terminates main stack tasks and notifies HAL
+**                  user with updated BT state.
+**
+** Returns          void
+**
+*******************************************************************************/
+
+void btif_disable_bluetooth_evt(void)
+{
+    BTIF_TRACE_DEBUG("%s", __FUNCTION__);
+
+#if (defined(HCILP_INCLUDED) && HCILP_INCLUDED == TRUE)
+    bte_main_enable_lpm(FALSE);
+#endif
+
+     bte_main_disable();
+#ifdef BLUETOOTH_RTK_API
+     rtkbt_api_Hook(RTKBT_HOOK_DISABLE_BT_COMPLETE, 0, 0);
+     UIPC_Close(UIPC_CH_ID_ALL);
+#endif
+    /* callback to HAL */
+    future_ready(stack_manager_get_hack_future(), FUTURE_SUCCESS);
+}
+
+/*******************************************************************************
+**
+** Function         btif_cleanup_bluetooth
+**
+** Description      Cleanup BTIF state.
+**
+** Returns          void
+**
+*******************************************************************************/
+
+bt_status_t btif_cleanup_bluetooth(void)
+{
+    BTIF_TRACE_DEBUG("%s", __FUNCTION__);
+
+#if (BLE_INCLUDED == TRUE)
+     BTA_VendorCleanup();
+#endif
+
+    btif_dm_cleanup();
+    btif_jni_disassociate();
+    btif_queue_release();
+
+    thread_free(bt_jni_workqueue_thread);
+    bt_jni_workqueue_thread = NULL;
+
+    bte_main_cleanup();
+
+    btif_dut_mode = 0;
+
+    BTIF_TRACE_DEBUG("%s done", __FUNCTION__);
+
+    return BT_STATUS_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         btif_dut_mode_cback
+**
+** Description     Callback invoked on completion of vendor specific test mode command
+**
+** Returns          None
+**
+*******************************************************************************/
+static void btif_dut_mode_cback( tBTM_VSC_CMPL *p )
+{
+    UNUSED(p);
+    /* For now nothing to be done. */
+}
+
+/*******************************************************************************
+**
+** Function         btif_dut_mode_configure
+**
+** Description      Configure Test Mode - 'enable' to 1 puts the device in test mode and 0 exits
+**                       test mode
+**
+** Returns          BT_STATUS_SUCCESS on success
+**
+*******************************************************************************/
+bt_status_t btif_dut_mode_configure(uint8_t enable)
+{
+    BTIF_TRACE_DEBUG("%s", __FUNCTION__);
+
+    if (!stack_manager_get_interface()->get_stack_is_running()) {
+        BTIF_TRACE_ERROR("btif_dut_mode_configure : Bluetooth not enabled");
+        return BT_STATUS_NOT_READY;
+    }
+
+    btif_dut_mode = enable;
+    if (enable == 1) {
+        BTA_EnableTestMode();
+    } else {
+        BTA_DisableTestMode();
+    }
+    return BT_STATUS_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         btif_dut_mode_send
+**
+** Description     Sends a HCI Vendor specific command to the controller
+**
+** Returns          BT_STATUS_SUCCESS on success
+**
+*******************************************************************************/
+bt_status_t btif_dut_mode_send(uint16_t opcode, uint8_t *buf, uint8_t len)
+{
+    /* TODO: Check that opcode is a vendor command group */
+    BTIF_TRACE_DEBUG("%s", __FUNCTION__);
+    if (!btif_is_dut_mode()) {
+         BTIF_TRACE_ERROR("Bluedroid HAL needs to be init with test_mode set to 1.");
+         return BT_STATUS_FAIL;
+    }
+    BTM_VendorSpecificCommand(opcode, len, buf, btif_dut_mode_cback);
+    return BT_STATUS_SUCCESS;
+}
+
+/*****************************************************************************
+**
+**   btif api adapter property functions
+**
+*****************************************************************************/
+
+static bt_status_t btif_in_get_adapter_properties(void)
+{
+    bt_property_t properties[6];
+    uint32_t num_props;
+
+    bt_bdaddr_t addr;
+    bt_bdname_t name;
+    bt_scan_mode_t mode;
+    uint32_t disc_timeout;
+    bt_bdaddr_t bonded_devices[BTM_SEC_MAX_DEVICE_RECORDS];
+    bt_uuid_t local_uuids[BT_MAX_NUM_UUIDS];
+    num_props = 0;
+
+    /* BD_ADDR */
+    BTIF_STORAGE_FILL_PROPERTY(&properties[num_props], BT_PROPERTY_BDADDR,
+                               sizeof(addr), &addr);
+    btif_storage_get_adapter_property(&properties[num_props]);
+    num_props++;
+
+    /* BD_NAME */
+    BTIF_STORAGE_FILL_PROPERTY(&properties[num_props], BT_PROPERTY_BDNAME,
+                               sizeof(name), &name);
+    btif_storage_get_adapter_property(&properties[num_props]);
+    num_props++;
+
+    /* SCAN_MODE */
+    BTIF_STORAGE_FILL_PROPERTY(&properties[num_props], BT_PROPERTY_ADAPTER_SCAN_MODE,
+                               sizeof(mode), &mode);
+    btif_storage_get_adapter_property(&properties[num_props]);
+    num_props++;
+
+    /* DISC_TIMEOUT */
+    BTIF_STORAGE_FILL_PROPERTY(&properties[num_props], BT_PROPERTY_ADAPTER_DISCOVERY_TIMEOUT,
+                               sizeof(disc_timeout), &disc_timeout);
+    btif_storage_get_adapter_property(&properties[num_props]);
+    num_props++;
+
+    /* BONDED_DEVICES */
+    BTIF_STORAGE_FILL_PROPERTY(&properties[num_props], BT_PROPERTY_ADAPTER_BONDED_DEVICES,
+                               sizeof(bonded_devices), bonded_devices);
+    btif_storage_get_adapter_property(&properties[num_props]);
+    num_props++;
+
+    /* LOCAL UUIDs */
+    BTIF_STORAGE_FILL_PROPERTY(&properties[num_props], BT_PROPERTY_UUIDS,
+                               sizeof(local_uuids), local_uuids);
+    btif_storage_get_adapter_property(&properties[num_props]);
+    num_props++;
+
+    HAL_CBACK(bt_hal_cbacks, adapter_properties_cb,
+                     BT_STATUS_SUCCESS, num_props, properties);
+
+    return BT_STATUS_SUCCESS;
+}
+
+static bt_status_t btif_in_get_remote_device_properties(bt_bdaddr_t *bd_addr)
+{
+    bt_property_t remote_properties[8];
+    uint32_t num_props = 0;
+
+    bt_bdname_t name, alias;
+    uint32_t cod, devtype;
+    bt_uuid_t remote_uuids[BT_MAX_NUM_UUIDS];
+
+    memset(remote_properties, 0, sizeof(remote_properties));
+    BTIF_STORAGE_FILL_PROPERTY(&remote_properties[num_props], BT_PROPERTY_BDNAME,
+                               sizeof(name), &name);
+    btif_storage_get_remote_device_property(bd_addr,
+                                            &remote_properties[num_props]);
+    num_props++;
+
+    BTIF_STORAGE_FILL_PROPERTY(&remote_properties[num_props], BT_PROPERTY_REMOTE_FRIENDLY_NAME,
+                               sizeof(alias), &alias);
+    btif_storage_get_remote_device_property(bd_addr,
+                                            &remote_properties[num_props]);
+    num_props++;
+
+    BTIF_STORAGE_FILL_PROPERTY(&remote_properties[num_props], BT_PROPERTY_CLASS_OF_DEVICE,
+                               sizeof(cod), &cod);
+    btif_storage_get_remote_device_property(bd_addr,
+                                            &remote_properties[num_props]);
+    num_props++;
+
+    BTIF_STORAGE_FILL_PROPERTY(&remote_properties[num_props], BT_PROPERTY_TYPE_OF_DEVICE,
+                               sizeof(devtype), &devtype);
+    btif_storage_get_remote_device_property(bd_addr,
+                                            &remote_properties[num_props]);
+    num_props++;
+
+    BTIF_STORAGE_FILL_PROPERTY(&remote_properties[num_props], BT_PROPERTY_UUIDS,
+                               sizeof(remote_uuids), remote_uuids);
+    btif_storage_get_remote_device_property(bd_addr,
+                                            &remote_properties[num_props]);
+    num_props++;
+
+    HAL_CBACK(bt_hal_cbacks, remote_device_properties_cb,
+                     BT_STATUS_SUCCESS, bd_addr, num_props, remote_properties);
+
+    return BT_STATUS_SUCCESS;
+}
+
+
+/*******************************************************************************
+**
+** Function         execute_storage_request
+**
+** Description      Executes adapter storage request in BTIF context
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+
+static void execute_storage_request(UINT16 event, char *p_param)
+{
+    bt_status_t status = BT_STATUS_SUCCESS;
+
+    BTIF_TRACE_EVENT("execute storage request event : %d", event);
+
+    switch(event)
+    {
+        case BTIF_CORE_STORAGE_ADAPTER_WRITE:
+        {
+            btif_storage_req_t *p_req = (btif_storage_req_t*)p_param;
+            bt_property_t *p_prop = &(p_req->write_req.prop);
+            BTIF_TRACE_EVENT("type: %d, len %d, 0x%x", p_prop->type,
+                               p_prop->len, p_prop->val);
+
+            status = btif_storage_set_adapter_property(p_prop);
+            HAL_CBACK(bt_hal_cbacks, adapter_properties_cb, status, 1, p_prop);
+        } break;
+
+        case BTIF_CORE_STORAGE_ADAPTER_READ:
+        {
+            btif_storage_req_t *p_req = (btif_storage_req_t*)p_param;
+            char buf[512];
+            bt_property_t prop;
+            prop.type = p_req->read_req.type;
+            prop.val = (void*)buf;
+            prop.len = sizeof(buf);
+            if (prop.type == BT_PROPERTY_LOCAL_LE_FEATURES)
+            {
+                #if (BLE_INCLUDED == TRUE)
+                tBTM_BLE_VSC_CB cmn_vsc_cb;
+                bt_local_le_features_t local_le_features;
+
+                /* LE features are not stored in storage. Should be retrived from stack */
+                BTM_BleGetVendorCapabilities(&cmn_vsc_cb);
+                local_le_features.local_privacy_enabled = BTM_BleLocalPrivacyEnabled();
+
+                prop.len = sizeof (bt_local_le_features_t);
+                if (cmn_vsc_cb.filter_support == 1)
+                    local_le_features.max_adv_filter_supported = cmn_vsc_cb.max_filter;
+                else
+                    local_le_features.max_adv_filter_supported = 0;
+                local_le_features.max_adv_instance = cmn_vsc_cb.adv_inst_max;
+                local_le_features.max_irk_list_size = cmn_vsc_cb.max_irk_list_sz;
+                local_le_features.rpa_offload_supported = cmn_vsc_cb.rpa_offloading;
+                local_le_features.scan_result_storage_size = cmn_vsc_cb.tot_scan_results_strg;
+                local_le_features.activity_energy_info_supported = cmn_vsc_cb.energy_support;
+                local_le_features.version_supported = cmn_vsc_cb.version_supported;
+                local_le_features.total_trackable_advertisers =
+                    cmn_vsc_cb.total_trackable_advertisers;
+
+                local_le_features.extended_scan_support = cmn_vsc_cb.extended_scan_support > 0;
+                local_le_features.debug_logging_supported = cmn_vsc_cb.debug_logging_supported > 0;
+                memcpy(prop.val, &local_le_features, prop.len);
+                #endif
+            }
+            else
+            {
+                status = btif_storage_get_adapter_property(&prop);
+            }
+            HAL_CBACK(bt_hal_cbacks, adapter_properties_cb, status, 1, &prop);
+        } break;
+
+        case BTIF_CORE_STORAGE_ADAPTER_READ_ALL:
+        {
+            status = btif_in_get_adapter_properties();
+        } break;
+
+        case BTIF_CORE_STORAGE_NOTIFY_STATUS:
+        {
+            HAL_CBACK(bt_hal_cbacks, adapter_properties_cb, status, 0, NULL);
+        } break;
+
+        default:
+            BTIF_TRACE_ERROR("%s invalid event id (%d)", __FUNCTION__, event);
+            break;
+    }
+}
+
+static void execute_storage_remote_request(UINT16 event, char *p_param)
+{
+    bt_status_t status = BT_STATUS_FAIL;
+    bt_property_t prop;
+
+    BTIF_TRACE_EVENT("execute storage remote request event : %d", event);
+
+    switch (event)
+    {
+        case BTIF_CORE_STORAGE_REMOTE_READ:
+        {
+            char buf[1024];
+            btif_storage_req_t *p_req = (btif_storage_req_t*)p_param;
+            prop.type = p_req->read_req.type;
+            prop.val = (void*) buf;
+            prop.len = sizeof(buf);
+
+            status = btif_storage_get_remote_device_property(&(p_req->read_req.bd_addr),
+                                                             &prop);
+            HAL_CBACK(bt_hal_cbacks, remote_device_properties_cb,
+                            status, &(p_req->read_req.bd_addr), 1, &prop);
+        }break;
+        case BTIF_CORE_STORAGE_REMOTE_WRITE:
+        {
+           btif_storage_req_t *p_req = (btif_storage_req_t*)p_param;
+           status = btif_storage_set_remote_device_property(&(p_req->write_req.bd_addr),
+                                                            &(p_req->write_req.prop));
+        }break;
+        case BTIF_CORE_STORAGE_REMOTE_READ_ALL:
+        {
+           btif_storage_req_t *p_req = (btif_storage_req_t*)p_param;
+           btif_in_get_remote_device_properties(&p_req->read_req.bd_addr);
+        }break;
+    }
+}
+
+void btif_adapter_properties_evt(bt_status_t status, uint32_t num_props,
+                                    bt_property_t *p_props)
+{
+    HAL_CBACK(bt_hal_cbacks, adapter_properties_cb,
+                     status, num_props, p_props);
+
+}
+void btif_remote_properties_evt(bt_status_t status, bt_bdaddr_t *remote_addr,
+                                   uint32_t num_props, bt_property_t *p_props)
+{
+    HAL_CBACK(bt_hal_cbacks, remote_device_properties_cb,
+                     status, remote_addr, num_props, p_props);
+}
+
+/*******************************************************************************
+**
+** Function         btif_in_storage_request_copy_cb
+**
+** Description     Switch context callback function to perform the deep copy for
+**                 both the adapter and remote_device property API
+**
+** Returns          None
+**
+*******************************************************************************/
+static void btif_in_storage_request_copy_cb(UINT16 event,
+                                                 char *p_new_buf, char *p_old_buf)
+{
+     btif_storage_req_t *new_req = (btif_storage_req_t*)p_new_buf;
+     btif_storage_req_t *old_req = (btif_storage_req_t*)p_old_buf;
+
+     BTIF_TRACE_EVENT("%s", __FUNCTION__);
+     switch (event)
+     {
+         case BTIF_CORE_STORAGE_REMOTE_WRITE:
+         case BTIF_CORE_STORAGE_ADAPTER_WRITE:
+         {
+             bdcpy(new_req->write_req.bd_addr.address, old_req->write_req.bd_addr.address);
+             /* Copy the member variables one at a time */
+             new_req->write_req.prop.type = old_req->write_req.prop.type;
+             new_req->write_req.prop.len = old_req->write_req.prop.len;
+
+             new_req->write_req.prop.val = (UINT8 *)(p_new_buf + sizeof(btif_storage_req_t));
+             memcpy(new_req->write_req.prop.val, old_req->write_req.prop.val,
+                    old_req->write_req.prop.len);
+         }break;
+     }
+}
+
+/*******************************************************************************
+**
+** Function         btif_get_adapter_properties
+**
+** Description      Fetch all available properties (local & remote)
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+
+bt_status_t btif_get_adapter_properties(void)
+{
+    BTIF_TRACE_EVENT("%s", __FUNCTION__);
+
+    if (!btif_is_enabled())
+        return BT_STATUS_NOT_READY;
+
+    return btif_transfer_context(execute_storage_request,
+                                 BTIF_CORE_STORAGE_ADAPTER_READ_ALL,
+                                 NULL, 0, NULL);
+}
+
+/*******************************************************************************
+**
+** Function         btif_get_adapter_property
+**
+** Description      Fetches property value from local cache
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+
+bt_status_t btif_get_adapter_property(bt_property_type_t type)
+{
+    btif_storage_req_t req;
+
+    BTIF_TRACE_EVENT("%s %d", __FUNCTION__, type);
+
+    /* Allow get_adapter_property only for BDADDR and BDNAME if BT is disabled */
+    if (!btif_is_enabled() && (type != BT_PROPERTY_BDADDR) && (type != BT_PROPERTY_BDNAME))
+        return BT_STATUS_NOT_READY;
+
+    memset(&(req.read_req.bd_addr), 0, sizeof(bt_bdaddr_t));
+    req.read_req.type = type;
+
+    return btif_transfer_context(execute_storage_request,
+                                 BTIF_CORE_STORAGE_ADAPTER_READ,
+                                (char*)&req, sizeof(btif_storage_req_t), NULL);
+}
+
+/*******************************************************************************
+**
+** Function         btif_set_adapter_property
+**
+** Description      Updates core stack with property value and stores it in
+**                  local cache
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+
+bt_status_t btif_set_adapter_property(const bt_property_t *property)
+{
+    btif_storage_req_t req;
+    bt_status_t status = BT_STATUS_SUCCESS;
+    int storage_req_id = BTIF_CORE_STORAGE_NOTIFY_STATUS; /* default */
+    char bd_name[BTM_MAX_LOC_BD_NAME_LEN +1];
+    UINT16  name_len = 0;
+
+    BTIF_TRACE_EVENT("btif_set_adapter_property type: %d, len %d, 0x%x",
+                      property->type, property->len, property->val);
+
+    if (!btif_is_enabled())
+        return BT_STATUS_NOT_READY;
+
+    switch(property->type)
+    {
+        case BT_PROPERTY_BDNAME:
+            {
+                name_len = property->len > BTM_MAX_LOC_BD_NAME_LEN ? BTM_MAX_LOC_BD_NAME_LEN:
+                                                                     property->len;
+                memcpy(bd_name,property->val, name_len);
+                bd_name[name_len] = '\0';
+
+                BTIF_TRACE_EVENT("set property name : %s", (char *)bd_name);
+
+                BTA_DmSetDeviceName((char *)bd_name);
+
+                storage_req_id = BTIF_CORE_STORAGE_ADAPTER_WRITE;
+#ifdef BLUETOOTH_RTK
+                btif_config_set_str("Adapter", "Name",(char *)bd_name);
+                btif_config_flush();
+#endif
+            }
+            break;
+
+        case BT_PROPERTY_ADAPTER_SCAN_MODE:
+            {
+                bt_scan_mode_t mode = *(bt_scan_mode_t*)property->val;
+                tBTA_DM_DISC disc_mode;
+                tBTA_DM_CONN conn_mode;
+
+                switch(mode)
+                {
+                    case BT_SCAN_MODE_NONE:
+                        disc_mode = BTA_DM_NON_DISC;
+                        conn_mode = BTA_DM_NON_CONN;
+                        break;
+
+                    case BT_SCAN_MODE_CONNECTABLE:
+                        disc_mode = BTA_DM_NON_DISC;
+                        conn_mode = BTA_DM_CONN;
+                        break;
+
+                    case BT_SCAN_MODE_CONNECTABLE_DISCOVERABLE:
+                        disc_mode = BTA_DM_GENERAL_DISC;
+                        conn_mode = BTA_DM_CONN;
+                        break;
+
+                    default:
+                        BTIF_TRACE_ERROR("invalid scan mode (0x%x)", mode);
+                        return BT_STATUS_PARM_INVALID;
+                }
+
+                BTIF_TRACE_EVENT("set property scan mode : %x", mode);
+
+                BTA_DmSetVisibility(disc_mode, conn_mode, BTA_DM_IGNORE, BTA_DM_IGNORE);
+
+                storage_req_id = BTIF_CORE_STORAGE_ADAPTER_WRITE;
+            }
+            break;
+        case BT_PROPERTY_ADAPTER_DISCOVERY_TIMEOUT:
+            {
+                /* Nothing to do beside store the value in NV.  Java
+                   will change the SCAN_MODE property after setting timeout,
+                   if required */
+                storage_req_id = BTIF_CORE_STORAGE_ADAPTER_WRITE;
+            }
+            break;
+        case BT_PROPERTY_BDADDR:
+        case BT_PROPERTY_UUIDS:
+        case BT_PROPERTY_ADAPTER_BONDED_DEVICES:
+        case BT_PROPERTY_REMOTE_FRIENDLY_NAME:
+            /* no write support through HAL, these properties are only populated from BTA events */
+            status = BT_STATUS_FAIL;
+            break;
+        default:
+            BTIF_TRACE_ERROR("btif_get_adapter_property : invalid type %d",
+            property->type);
+            status = BT_STATUS_FAIL;
+            break;
+    }
+
+    if (storage_req_id != BTIF_CORE_STORAGE_NO_ACTION)
+    {
+        /* pass on to storage for updating local database */
+
+        memset(&(req.write_req.bd_addr), 0, sizeof(bt_bdaddr_t));
+        memcpy(&(req.write_req.prop), property, sizeof(bt_property_t));
+
+        return btif_transfer_context(execute_storage_request,
+                                     storage_req_id,
+                                     (char*)&req,
+                                     sizeof(btif_storage_req_t)+property->len,
+                                     btif_in_storage_request_copy_cb);
+    }
+
+    return status;
+
+}
+
+/*******************************************************************************
+**
+** Function         btif_get_remote_device_property
+**
+** Description      Fetches the remote device property from the NVRAM
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+bt_status_t btif_get_remote_device_property(bt_bdaddr_t *remote_addr,
+                                                 bt_property_type_t type)
+{
+    btif_storage_req_t req;
+
+    if (!btif_is_enabled())
+        return BT_STATUS_NOT_READY;
+
+    memcpy(&(req.read_req.bd_addr), remote_addr, sizeof(bt_bdaddr_t));
+    req.read_req.type = type;
+    return btif_transfer_context(execute_storage_remote_request,
+                                 BTIF_CORE_STORAGE_REMOTE_READ,
+                                 (char*)&req, sizeof(btif_storage_req_t),
+                                 NULL);
+}
+
+/*******************************************************************************
+**
+** Function         btif_get_remote_device_properties
+**
+** Description      Fetches all the remote device properties from NVRAM
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+bt_status_t btif_get_remote_device_properties(bt_bdaddr_t *remote_addr)
+{
+    btif_storage_req_t req;
+
+    if (!btif_is_enabled())
+        return BT_STATUS_NOT_READY;
+
+    memcpy(&(req.read_req.bd_addr), remote_addr, sizeof(bt_bdaddr_t));
+    return btif_transfer_context(execute_storage_remote_request,
+                                 BTIF_CORE_STORAGE_REMOTE_READ_ALL,
+                                 (char*)&req, sizeof(btif_storage_req_t),
+                                 NULL);
+}
+
+/*******************************************************************************
+**
+** Function         btif_set_remote_device_property
+**
+** Description      Writes the remote device property to NVRAM.
+**                  Currently, BT_PROPERTY_REMOTE_FRIENDLY_NAME is the only
+**                  remote device property that can be set
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+bt_status_t btif_set_remote_device_property(bt_bdaddr_t *remote_addr,
+                                                 const bt_property_t *property)
+{
+    btif_storage_req_t req;
+
+    if (!btif_is_enabled())
+        return BT_STATUS_NOT_READY;
+
+    memcpy(&(req.write_req.bd_addr), remote_addr, sizeof(bt_bdaddr_t));
+    memcpy(&(req.write_req.prop), property, sizeof(bt_property_t));
+
+    return btif_transfer_context(execute_storage_remote_request,
+                                 BTIF_CORE_STORAGE_REMOTE_WRITE,
+                                 (char*)&req,
+                                 sizeof(btif_storage_req_t)+property->len,
+                                 btif_in_storage_request_copy_cb);
+}
+
+
+/*******************************************************************************
+**
+** Function         btif_get_remote_service_record
+**
+** Description      Looks up the service matching uuid on the remote device
+**                  and fetches the SCN and service_name if the UUID is found
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+bt_status_t btif_get_remote_service_record(bt_bdaddr_t *remote_addr,
+                                               bt_uuid_t *uuid)
+{
+    if (!btif_is_enabled())
+        return BT_STATUS_NOT_READY;
+
+    return btif_dm_get_remote_service_record(remote_addr, uuid);
+}
+
+
+/*******************************************************************************
+**
+** Function         btif_get_enabled_services_mask
+**
+** Description      Fetches currently enabled services
+**
+** Returns          tBTA_SERVICE_MASK
+**
+*******************************************************************************/
+
+tBTA_SERVICE_MASK btif_get_enabled_services_mask(void)
+{
+    return btif_enabled_services;
+}
+
+/*******************************************************************************
+**
+** Function         btif_enable_service
+**
+** Description      Enables the service 'service_ID' to the service_mask.
+**                  Upon BT enable, BTIF core shall invoke the BTA APIs to
+**                  enable the profiles
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+bt_status_t btif_enable_service(tBTA_SERVICE_ID service_id)
+{
+    tBTA_SERVICE_ID *p_id = &service_id;
+
+    /* If BT is enabled, we need to switch to BTIF context and trigger the
+     * enable for that profile
+     *
+     * Otherwise, we just set the flag. On BT_Enable, the DM will trigger
+     * enable for the profiles that have been enabled */
+
+    btif_enabled_services |= (1 << service_id);
+
+    BTIF_TRACE_DEBUG("%s: current services:0x%x", __FUNCTION__, btif_enabled_services);
+
+    if (btif_is_enabled())
+    {
+        btif_transfer_context(btif_dm_execute_service_request,
+                              BTIF_DM_ENABLE_SERVICE,
+                              (char*)p_id, sizeof(tBTA_SERVICE_ID), NULL);
+    }
+
+    return BT_STATUS_SUCCESS;
+}
+/*******************************************************************************
+**
+** Function         btif_disable_service
+**
+** Description      Disables the service 'service_ID' to the service_mask.
+**                  Upon BT disable, BTIF core shall invoke the BTA APIs to
+**                  disable the profiles
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+bt_status_t btif_disable_service(tBTA_SERVICE_ID service_id)
+{
+    tBTA_SERVICE_ID *p_id = &service_id;
+
+    /* If BT is enabled, we need to switch to BTIF context and trigger the
+     * disable for that profile so that the appropriate uuid_property_changed will
+     * be triggerred. Otherwise, we just need to clear the service_id in the mask
+     */
+
+    btif_enabled_services &=  (tBTA_SERVICE_MASK)(~(1<<service_id));
+
+    BTIF_TRACE_DEBUG("%s: Current Services:0x%x", __FUNCTION__, btif_enabled_services);
+
+    if (btif_is_enabled())
+    {
+        btif_transfer_context(btif_dm_execute_service_request,
+                              BTIF_DM_DISABLE_SERVICE,
+                              (char*)p_id, sizeof(tBTA_SERVICE_ID), NULL);
+    }
+
+    return BT_STATUS_SUCCESS;
+}
+
+static void btif_jni_associate(UNUSED_ATTR uint16_t event, UNUSED_ATTR char *p_param) {
+  BTIF_TRACE_DEBUG("%s Associating thread to JVM", __func__);
+  HAL_CBACK(bt_hal_cbacks, thread_evt_cb, ASSOCIATE_JVM);
+}
+
+static void btif_jni_disassociate() {
+  BTIF_TRACE_DEBUG("%s Disassociating thread from JVM", __func__);
+  HAL_CBACK(bt_hal_cbacks, thread_evt_cb, DISASSOCIATE_JVM);
+  bt_hal_cbacks = NULL;
+}
diff --git a/rtkbt/code/bt/btif/src/btif_debug.c b/rtkbt/code/bt/btif/src/btif_debug.c
new file mode 100755
index 0000000..4abcbc8
--- /dev/null
+++ b/rtkbt/code/bt/btif/src/btif_debug.c
@@ -0,0 +1,40 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2015 Google Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#include <unistd.h>
+#include <sys/time.h>
+
+#include "btif/include/btif_debug.h"
+#include "btif/include/btif_debug_btsnoop.h"
+#include "btif/include/btif_debug_conn.h"
+#include "btif/include/btif_media.h"
+#include "include/bt_target.h"
+#include "osi/include/wakelock.h"
+
+void btif_debug_init(void) {
+#if defined(BTSNOOP_MEM) && (BTSNOOP_MEM == TRUE)
+  btif_debug_btsnoop_init();
+#endif
+}
+
+// TODO: Find a better place for this to enable additional re-use
+uint64_t btif_debug_ts(void) {
+  struct timeval tv;
+  gettimeofday(&tv, NULL);
+  return (tv.tv_sec * 1000000LL) + tv.tv_usec;
+}
diff --git a/rtkbt/code/bt/btif/src/btif_debug_btsnoop.c b/rtkbt/code/bt/btif/src/btif_debug_btsnoop.c
new file mode 100755
index 0000000..6490eff
--- /dev/null
+++ b/rtkbt/code/bt/btif/src/btif_debug_btsnoop.c
@@ -0,0 +1,209 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2015 Google Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#include <assert.h>
+#include <resolv.h>
+#include <zlib.h>
+
+#include "btif/include/btif_debug.h"
+#include "btif/include/btif_debug_btsnoop.h"
+#include "hci/include/btsnoop_mem.h"
+#include "include/bt_target.h"
+#include "osi/include/ringbuffer.h"
+
+#define REDUCE_HCI_TYPE_TO_SIGNIFICANT_BITS(type) (type >> 8)
+
+// Total btsnoop memory log buffer size
+#ifndef BTSNOOP_MEM_BUFFER_SIZE
+static const size_t BTSNOOP_MEM_BUFFER_SIZE = (256 * 1024);
+#endif
+
+// Block size for copying buffers (for compression/encoding etc.)
+static const size_t BLOCK_SIZE = 16384;
+
+// Maximum line length in bugreport (should be multiple of 4 for base64 output)
+static const uint8_t MAX_LINE_LENGTH = 128;
+
+static ringbuffer_t *buffer = NULL;
+static uint64_t last_timestamp_ms = 0;
+
+static size_t btsnoop_calculate_packet_length(uint16_t type, const uint8_t *data, size_t length);
+
+static void btsnoop_cb(const uint16_t type, const uint8_t *data, const size_t length) {
+  btsnooz_header_t header;
+
+  size_t included_length = btsnoop_calculate_packet_length(type, data, length);
+  if (included_length == 0)
+    return;
+
+  // Make room in the ring buffer
+
+  while (ringbuffer_available(buffer) < (included_length + sizeof(btsnooz_header_t))) {
+    ringbuffer_pop(buffer, (uint8_t *)&header, sizeof(btsnooz_header_t));
+    ringbuffer_delete(buffer, header.length - 1);
+  }
+
+  // Insert data
+
+  const uint64_t now = btif_debug_ts();
+
+  header.type = REDUCE_HCI_TYPE_TO_SIGNIFICANT_BITS(type);
+  header.length = included_length + 1;  // +1 for type byte
+  header.packet_length = length + 1;  // +1 for type byte.
+  header.delta_time_ms = last_timestamp_ms ? now - last_timestamp_ms : 0;
+  last_timestamp_ms = now;
+
+  ringbuffer_insert(buffer, (uint8_t *)&header, sizeof(btsnooz_header_t));
+  ringbuffer_insert(buffer, data, included_length);
+}
+
+static size_t btsnoop_calculate_packet_length(uint16_t type, const uint8_t *data, size_t length) {
+  static const size_t HCI_ACL_HEADER_SIZE = 4;
+  static const size_t L2CAP_HEADER_SIZE = 4;
+  static const size_t L2CAP_CID_OFFSET = (HCI_ACL_HEADER_SIZE + 2);
+  static const uint16_t L2CAP_SIGNALING_CID = 0x0001;
+
+  // Maximum amount of ACL data to log.
+  // Enough for an RFCOMM frame up to the frame check;
+  // not enough for a HID report or audio data.
+  static const size_t MAX_HCI_ACL_LEN = 14;
+
+  // Calculate packet length to be included
+
+  switch (type) {
+    case BT_EVT_TO_LM_HCI_CMD:
+      return length;
+
+    case BT_EVT_TO_BTU_HCI_EVT:
+      return length;
+
+    case BT_EVT_TO_LM_HCI_ACL:
+    case BT_EVT_TO_BTU_HCI_ACL:
+    {
+      size_t len_hci_acl = HCI_ACL_HEADER_SIZE + L2CAP_HEADER_SIZE;
+      // Check if we have enough data for an L2CAP header
+      if (length > len_hci_acl) {
+        uint16_t l2cap_cid = data[L2CAP_CID_OFFSET] | (data[L2CAP_CID_OFFSET + 1] << 8);
+        if (l2cap_cid == L2CAP_SIGNALING_CID) {
+          // For the signaling CID, take the full packet.
+          // That way, the PSM setup is captured, allowing decoding of PSMs down the road.
+          return length;
+        } else {
+          // Otherwise, return as much as we reasonably can
+          len_hci_acl = MAX_HCI_ACL_LEN;
+        }
+      }
+      return len_hci_acl < length ? len_hci_acl : length;
+    }
+
+    case BT_EVT_TO_LM_HCI_SCO:
+    case BT_EVT_TO_BTU_HCI_SCO:
+      // We're not logging SCO packets at this time since they are not currently used.
+      // FALLTHROUGH
+    default:
+      return 0;
+  }
+}
+
+static bool btsnoop_compress(ringbuffer_t *rb_dst, ringbuffer_t *rb_src) {
+  assert(rb_dst != NULL);
+  assert(rb_src != NULL);
+
+  z_stream zs = {.zalloc = Z_NULL, .zfree = Z_NULL, .opaque = Z_NULL};
+  if (deflateInit(&zs, Z_DEFAULT_COMPRESSION) != Z_OK)
+    return false;
+
+  bool rc = true;
+  uint8_t block_src[BLOCK_SIZE];
+  uint8_t block_dst[BLOCK_SIZE];
+
+  const size_t num_blocks = (ringbuffer_size(rb_src) + BLOCK_SIZE - 1) / BLOCK_SIZE;
+  for (size_t i = 0; i < num_blocks; ++i) {
+    zs.avail_in = ringbuffer_peek(rb_src, i * BLOCK_SIZE, block_src, BLOCK_SIZE);
+    zs.next_in = block_src;
+
+    do {
+      zs.avail_out = BLOCK_SIZE;
+      zs.next_out = block_dst;
+
+      int err = deflate(&zs, (i == num_blocks - 1) ? Z_FINISH : Z_NO_FLUSH);
+      if (err == Z_STREAM_ERROR) {
+        rc = false;
+        break;
+      }
+
+      const size_t length = BLOCK_SIZE - zs.avail_out;
+      ringbuffer_insert(rb_dst, block_dst, length);
+    } while (zs.avail_out == 0);
+  }
+
+  deflateEnd(&zs);
+  return rc;
+}
+
+void btif_debug_btsnoop_init(void) {
+  if (buffer == NULL)
+    buffer = ringbuffer_init(BTSNOOP_MEM_BUFFER_SIZE);
+  btsnoop_mem_set_callback(btsnoop_cb);
+}
+
+void btif_debug_btsnoop_dump(int fd) {
+  dprintf(fd, "--- BEGIN:BTSNOOP_LOG_SUMMARY (%zu bytes in) ---\n", ringbuffer_size(buffer));
+
+  ringbuffer_t *ringbuffer = ringbuffer_init(BTSNOOP_MEM_BUFFER_SIZE);
+  if (ringbuffer == NULL) {
+    dprintf(fd, "%s Unable to allocate memory for compression", __func__);
+    return;
+  }
+
+  // Prepend preamble
+
+  btsnooz_preamble_t preamble;
+  preamble.version = BTSNOOZ_CURRENT_VERSION;
+  preamble.last_timestamp_ms = last_timestamp_ms;
+  ringbuffer_insert(ringbuffer, (uint8_t *)&preamble, sizeof(btsnooz_preamble_t));
+
+  // Compress data
+
+  bool rc = btsnoop_compress(ringbuffer, buffer);
+  if (rc == false) {
+    dprintf(fd, "%s Log compression failed", __func__);
+    goto error;
+  }
+
+  // Base64 encode & output
+
+  uint8_t b64_in[3] = {0};
+  char b64_out[5] = {0};
+
+  size_t line_length = 0;
+  while (ringbuffer_size(ringbuffer) > 0) {
+    size_t read = ringbuffer_pop(ringbuffer, b64_in, 3);
+    if (line_length >= MAX_LINE_LENGTH) {
+      dprintf(fd, "\n");
+      line_length = 0;
+    }
+    line_length += b64_ntop(b64_in, read, b64_out, 5);
+    dprintf(fd, "%s", b64_out);
+  }
+
+  dprintf(fd, "\n--- END:BTSNOOP_LOG_SUMMARY ---\n");
+
+error:
+  ringbuffer_free(ringbuffer);
+}
diff --git a/rtkbt/code/bt/btif/src/btif_debug_conn.c b/rtkbt/code/bt/btif/src/btif_debug_conn.c
new file mode 100755
index 0000000..9c9a9f3
--- /dev/null
+++ b/rtkbt/code/bt/btif/src/btif_debug_conn.c
@@ -0,0 +1,110 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2015 Google Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#include <stdio.h>
+#include <string.h>
+#include <time.h>
+
+#include "btcore/include/bdaddr.h"
+#include "btif/include/btif_debug.h"
+#include "btif/include/btif_debug_conn.h"
+
+#define NUM_CONNECTION_EVENTS  16
+#define TEMP_BUFFER_SIZE       30
+
+typedef struct conn_event_t {
+  uint64_t ts;
+  btif_debug_conn_state_t state;
+  bt_bdaddr_t bda;
+  tGATT_DISCONN_REASON disconnect_reason;
+} conn_event_t;
+
+static conn_event_t connection_events[NUM_CONNECTION_EVENTS];
+static uint8_t current_event = 0;
+
+static char *format_ts(const uint64_t ts, char *buffer, int len) {
+  const uint64_t ms = ts / 1000;
+  const time_t secs = ms / 1000;
+  struct tm *ptm = localtime(&secs);
+
+  char tempbuff[20];
+  strftime(tempbuff, sizeof(tempbuff), "%m-%d %H:%M:%S", ptm);
+  snprintf(buffer, len, "%s.%03u", tempbuff, (uint16_t)(ms % 1000));
+
+  return buffer;
+}
+
+static char *format_state(const btif_debug_conn_state_t state) {
+  switch (state) {
+    case BTIF_DEBUG_CONNECTED:
+      return "CONNECTED   ";
+    case BTIF_DEBUG_DISCONNECTED:
+      return "DISCONNECTED";
+  }
+  return "UNKNOWN";
+}
+
+static void next_event() {
+  ++current_event;
+  if (current_event == NUM_CONNECTION_EVENTS)
+    current_event = 0;
+}
+
+void btif_debug_conn_state(const bt_bdaddr_t bda, const btif_debug_conn_state_t state,
+    const tGATT_DISCONN_REASON disconnect_reason) {
+  next_event();
+
+  conn_event_t *evt = &connection_events[current_event];
+  evt->ts = btif_debug_ts();
+  evt->state = state;
+  evt->disconnect_reason = disconnect_reason;
+  memcpy(&evt->bda, &bda, sizeof(bt_bdaddr_t));
+}
+
+void btif_debug_conn_dump(int fd) {
+  const uint8_t current_event_local = current_event; // Cache to avoid threading issues
+  uint8_t dump_event = current_event_local;
+  char ts_buffer[TEMP_BUFFER_SIZE] = {0};
+  char name_buffer[TEMP_BUFFER_SIZE] = {0};
+
+  dprintf(fd, "\nConnection Events:\n");
+  if (connection_events[dump_event].ts == 0)
+    dprintf(fd, "  None\n");
+
+  while (connection_events[dump_event].ts) {
+    conn_event_t *evt = &connection_events[dump_event];
+    dprintf(fd, "  %s %s %s",
+            format_ts(evt->ts, ts_buffer, sizeof(ts_buffer)),
+            format_state(evt->state),
+            bdaddr_to_string(&evt->bda, name_buffer, sizeof(name_buffer))
+        );
+    if (evt->state == BTIF_DEBUG_DISCONNECTED)
+      dprintf(fd, " reason=%d", evt->disconnect_reason);
+    dprintf(fd,"\n");
+
+    // Go to previous event; wrap if needed
+    if (dump_event > 0)
+      --dump_event;
+    else
+      dump_event = NUM_CONNECTION_EVENTS - 1;
+
+    // Check if we dumped all events
+    if (dump_event == current_event_local)
+      break;
+  }
+}
diff --git a/rtkbt/code/bt/btif/src/btif_dm.c b/rtkbt/code/bt/btif/src/btif_dm.c
new file mode 100755
index 0000000..1841048
--- /dev/null
+++ b/rtkbt/code/bt/btif/src/btif_dm.c
@@ -0,0 +1,3671 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/************************************************************************************
+ *
+ *  Filename:      btif_dm.c
+ *
+ *  Description:   Contains Device Management (DM) related functionality
+ *
+ *
+ ***********************************************************************************/
+
+#define LOG_TAG "bt_btif_dm"
+
+#include "btif_dm.h"
+
+#include <assert.h>
+#include <pthread.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <time.h>
+#include <unistd.h>
+
+#include <hardware/bluetooth.h>
+
+#include "bdaddr.h"
+#include "bta_gatt_api.h"
+#include "btif_api.h"
+#include "btif_config.h"
+#include "btif_hh.h"
+#include "btif_sdp.h"
+#include "btif_storage.h"
+#include "btif_util.h"
+#include "btu.h"
+#include "bt_common.h"
+#include "bta_gatt_api.h"
+#include "device/include/interop.h"
+#include "include/stack_config.h"
+#include "osi/include/allocator.h"
+#include "osi/include/log.h"
+#include "osi/include/metrics.h"
+#include "osi/include/properties.h"
+#include "stack_config.h"
+#include "stack/btm/btm_int.h"
+
+/******************************************************************************
+**  Constants & Macros
+******************************************************************************/
+
+#define COD_MASK                            0x07FF
+
+#define COD_UNCLASSIFIED ((0x1F) << 8)
+#define COD_HID_KEYBOARD                    0x0540
+#define COD_HID_POINTING                    0x0580
+#define COD_HID_COMBO                       0x05C0
+#define COD_HID_MAJOR                       0x0500
+#define COD_HID_MASK                        0x0700
+#define COD_AV_HEADSETS                     0x0404
+#define COD_AV_HANDSFREE                    0x0408
+#define COD_AV_HEADPHONES                   0x0418
+#define COD_AV_PORTABLE_AUDIO               0x041C
+#define COD_AV_HIFI_AUDIO                   0x0428
+
+#define BTIF_DM_DEFAULT_INQ_MAX_RESULTS     0
+#define BTIF_DM_DEFAULT_INQ_MAX_DURATION    10
+#define BTIF_DM_MAX_SDP_ATTEMPTS_AFTER_PAIRING 2
+
+#define NUM_TIMEOUT_RETRIES                 5
+
+#define PROPERTY_PRODUCT_MODEL "ro.product.model"
+#ifdef BLUETOOTH_RTK
+//Device name length should be long enough
+#define DEFAULT_LOCAL_NAME_MAX  240
+#else
+#define DEFAULT_LOCAL_NAME_MAX  31
+#endif
+#if (DEFAULT_LOCAL_NAME_MAX > BTM_MAX_LOC_BD_NAME_LEN)
+    #error "default btif local name size exceeds stack supported length"
+#endif
+
+#if (defined(BTA_HOST_INTERLEAVE_SEARCH) && BTA_HOST_INTERLEAVE_SEARCH == TRUE)
+#define BTIF_DM_INTERLEAVE_DURATION_BR_ONE    2
+#define BTIF_DM_INTERLEAVE_DURATION_LE_ONE    2
+#define BTIF_DM_INTERLEAVE_DURATION_BR_TWO    3
+#define BTIF_DM_INTERLEAVE_DURATION_LE_TWO    4
+#endif
+
+#define ENCRYPTED_BREDR       2
+#define ENCRYPTED_LE          4
+
+typedef struct
+{
+    bt_bond_state_t state;
+    bt_bdaddr_t static_bdaddr;
+    BD_ADDR bd_addr;
+    tBTM_BOND_TYPE bond_type;
+    UINT8 pin_code_len;
+    UINT8 is_ssp;
+    UINT8 auth_req;
+    UINT8 io_cap;
+    UINT8 autopair_attempts;
+    UINT8 timeout_retries;
+    UINT8 is_local_initiated;
+    UINT8 sdp_attempts;
+#if (defined(BLE_INCLUDED) && (BLE_INCLUDED == TRUE))
+    BOOLEAN is_le_only;
+    BOOLEAN is_le_nc; /* LE Numeric comparison */
+    btif_dm_ble_cb_t ble;
+#endif
+} btif_dm_pairing_cb_t;
+
+typedef struct
+{
+    UINT8       ir[BT_OCTET16_LEN];
+    UINT8       irk[BT_OCTET16_LEN];
+    UINT8       dhk[BT_OCTET16_LEN];
+}btif_dm_local_key_id_t;
+
+typedef struct
+{
+    BOOLEAN                 is_er_rcvd;
+    UINT8                   er[BT_OCTET16_LEN];
+    BOOLEAN                 is_id_keys_rcvd;
+    btif_dm_local_key_id_t  id_keys;  /* ID kyes */
+
+}btif_dm_local_key_cb_t;
+
+typedef struct
+{
+    BD_ADDR bd_addr;
+    BD_NAME bd_name;
+} btif_dm_remote_name_t;
+
+/* this structure holds optional OOB data for remote device */
+typedef struct
+{
+    BD_ADDR  bdaddr;    /* peer bdaddr */
+    bt_out_of_band_data_t oob_data;
+} btif_dm_oob_cb_t;
+
+typedef struct
+{
+    bt_bdaddr_t  bdaddr;
+    UINT8        transport; /* 0=Unknown, 1=BR/EDR, 2=LE */
+} btif_dm_create_bond_cb_t;
+
+typedef struct
+{
+    uint8_t  status;
+    uint8_t  ctrl_state;
+    uint64_t tx_time;
+    uint64_t rx_time;
+    uint64_t idle_time;
+    uint64_t energy_used;
+} btif_activity_energy_info_cb_t;
+
+typedef struct
+{
+    unsigned int   manufact_id;
+}skip_sdp_entry_t;
+
+typedef enum
+{
+    BTIF_DM_FUNC_CREATE_BOND,
+    BTIF_DM_FUNC_CANCEL_BOND,
+    BTIF_DM_FUNC_REMOVE_BOND,
+    BTIF_DM_FUNC_BOND_STATE_CHANGED,
+} bt_bond_function_t;
+
+typedef struct
+{
+    bt_bdaddr_t bd_addr;
+    bt_bond_function_t function;
+    bt_bond_state_t state;
+    struct timespec timestamp;
+} btif_bond_event_t;
+
+#define BTA_SERVICE_ID_TO_SERVICE_MASK(id)       (1 << (id))
+
+#define UUID_HUMAN_INTERFACE_DEVICE "00001124-0000-1000-8000-00805f9b34fb"
+
+#define MAX_BTIF_BOND_EVENT_ENTRIES 15
+
+static skip_sdp_entry_t sdp_blacklist[] = {{76}}; //Apple Mouse and Keyboard
+
+/* This flag will be true if HCI_Inquiry is in progress */
+static BOOLEAN btif_dm_inquiry_in_progress = FALSE;
+
+/************************************************************************************
+**  Static variables
+************************************************************************************/
+static char btif_default_local_name[DEFAULT_LOCAL_NAME_MAX+1] = {'\0'};
+static uid_set_t* uid_set = NULL;
+
+/* A circular array to keep track of the most recent bond events */
+static btif_bond_event_t btif_dm_bond_events[MAX_BTIF_BOND_EVENT_ENTRIES + 1];
+
+static pthread_mutex_t bond_event_lock;
+
+/* |btif_num_bond_events| keeps track of the total number of events and can be
+   greater than |MAX_BTIF_BOND_EVENT_ENTRIES| */
+static size_t btif_num_bond_events = 0;
+static size_t btif_events_start_index = 0;
+static size_t btif_events_end_index = 0;
+
+/******************************************************************************
+**  Static functions
+******************************************************************************/
+static btif_dm_pairing_cb_t pairing_cb;
+static btif_dm_oob_cb_t     oob_cb;
+static void btif_dm_generic_evt(UINT16 event, char* p_param);
+static void btif_dm_cb_create_bond(bt_bdaddr_t *bd_addr, tBTA_TRANSPORT transport);
+static void btif_dm_cb_hid_remote_name(tBTM_REMOTE_DEV_NAME *p_remote_name);
+static void btif_update_remote_properties(BD_ADDR bd_addr, BD_NAME bd_name,
+                                          DEV_CLASS dev_class, tBT_DEVICE_TYPE dev_type);
+#if (defined(BLE_INCLUDED) && (BLE_INCLUDED == TRUE))
+static btif_dm_local_key_cb_t ble_local_key_cb;
+static void btif_dm_ble_key_notif_evt(tBTA_DM_SP_KEY_NOTIF *p_ssp_key_notif);
+static void btif_dm_ble_auth_cmpl_evt (tBTA_DM_AUTH_CMPL *p_auth_cmpl);
+static void btif_dm_ble_passkey_req_evt(tBTA_DM_PIN_REQ *p_pin_req);
+static void btif_dm_ble_key_nc_req_evt(tBTA_DM_SP_KEY_NOTIF *p_notif_req) ;
+static void btif_dm_ble_oob_req_evt(tBTA_DM_SP_RMT_OOB *req_oob_type);
+#endif
+
+static void bte_scan_filt_param_cfg_evt(UINT8 action_type,
+                                           tBTA_DM_BLE_PF_AVBL_SPACE avbl_space,
+                                           tBTA_DM_BLE_REF_VALUE ref_value,
+                                           tBTA_STATUS status);
+
+static char* btif_get_default_local_name();
+
+static void btif_stats_add_bond_event(const bt_bdaddr_t *bd_addr,
+                                      bt_bond_function_t function,
+                                      bt_bond_state_t state);
+
+/******************************************************************************
+**  Externs
+******************************************************************************/
+extern UINT16 bta_service_id_to_uuid_lkup_tbl [BTA_MAX_SERVICE_ID];
+extern bt_status_t btif_hf_execute_service(BOOLEAN b_enable);
+extern bt_status_t btif_av_execute_service(BOOLEAN b_enable);
+extern bt_status_t btif_av_sink_execute_service(BOOLEAN b_enable);
+extern bt_status_t btif_hh_execute_service(BOOLEAN b_enable);
+extern bt_status_t btif_hf_client_execute_service(BOOLEAN b_enable);
+extern bt_status_t btif_sdp_execute_service(BOOLEAN b_enable);
+extern int btif_hh_connect(bt_bdaddr_t *bd_addr);
+extern void bta_gatt_convert_uuid16_to_uuid128(UINT8 uuid_128[LEN_UUID_128], UINT16 uuid_16);
+
+/******************************************************************************
+**  Functions
+******************************************************************************/
+
+static bool is_empty_128bit(uint8_t *data)
+{
+    static const uint8_t zero[16] = { 0 };
+    return !memcmp(zero, data, sizeof(zero));
+}
+
+static void btif_dm_data_copy(uint16_t event, char *dst, char *src)
+{
+    tBTA_DM_SEC *dst_dm_sec = (tBTA_DM_SEC*)dst;
+    tBTA_DM_SEC *src_dm_sec = (tBTA_DM_SEC*)src;
+
+    if (!src_dm_sec)
+        return;
+
+    assert(dst_dm_sec);
+    maybe_non_aligned_memcpy(dst_dm_sec, src_dm_sec, sizeof(*src_dm_sec));
+
+    if (event == BTA_DM_BLE_KEY_EVT)
+    {
+        dst_dm_sec->ble_key.p_key_value = osi_malloc(sizeof(tBTM_LE_KEY_VALUE));
+        assert(src_dm_sec->ble_key.p_key_value);
+        memcpy(dst_dm_sec->ble_key.p_key_value, src_dm_sec->ble_key.p_key_value, sizeof(tBTM_LE_KEY_VALUE));
+    }
+}
+
+static void btif_dm_data_free(uint16_t event, tBTA_DM_SEC *dm_sec)
+{
+    if (event == BTA_DM_BLE_KEY_EVT)
+        osi_free_and_reset((void **)&dm_sec->ble_key.p_key_value);
+}
+
+void btif_dm_init(uid_set_t* set)
+{
+    uid_set = set;
+    pthread_mutex_init(&bond_event_lock, NULL);
+}
+
+void btif_dm_cleanup(void)
+{
+    if (uid_set) {
+        uid_set_destroy(uid_set);
+        uid_set = NULL;
+    }
+    pthread_mutex_destroy(&bond_event_lock);
+}
+
+bt_status_t btif_in_execute_service_request(tBTA_SERVICE_ID service_id,
+                                                BOOLEAN b_enable)
+{
+    BTIF_TRACE_DEBUG("%s service_id: %d", __FUNCTION__, service_id);
+    /* Check the service_ID and invoke the profile's BT state changed API */
+    switch (service_id)
+    {
+         case BTA_HFP_SERVICE_ID:
+         case BTA_HSP_SERVICE_ID:
+         {
+              btif_hf_execute_service(b_enable);
+         }break;
+         case BTA_A2DP_SOURCE_SERVICE_ID:
+         {
+              btif_av_execute_service(b_enable);
+         }break;
+         case BTA_A2DP_SINK_SERVICE_ID:
+         {
+            btif_av_sink_execute_service(b_enable);
+         }break;
+         case BTA_HID_SERVICE_ID:
+         {
+              btif_hh_execute_service(b_enable);
+         }break;
+         case BTA_HFP_HS_SERVICE_ID:
+         {
+             btif_hf_client_execute_service(b_enable);
+         }break;
+         case BTA_SDP_SERVICE_ID:
+         {
+             btif_sdp_execute_service(b_enable);
+         }break;
+         default:
+           BTIF_TRACE_ERROR("%s: Unknown service %d being %s",
+                            __func__, service_id,
+                            (b_enable) ? "enabled" : "disabled");
+              return BT_STATUS_FAIL;
+    }
+    return BT_STATUS_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         check_eir_remote_name
+**
+** Description      Check if remote name is in the EIR data
+**
+** Returns          TRUE if remote name found
+**                  Populate p_remote_name, if provided and remote name found
+**
+*******************************************************************************/
+static BOOLEAN check_eir_remote_name(tBTA_DM_SEARCH *p_search_data,
+                            UINT8 *p_remote_name, UINT8 *p_remote_name_len)
+{
+    UINT8 *p_eir_remote_name = NULL;
+    UINT8 remote_name_len = 0;
+
+    /* Check EIR for remote name and services */
+    if (p_search_data->inq_res.p_eir)
+    {
+        p_eir_remote_name = BTM_CheckEirData(p_search_data->inq_res.p_eir,
+                BTM_EIR_COMPLETE_LOCAL_NAME_TYPE, &remote_name_len);
+        if (!p_eir_remote_name)
+        {
+            p_eir_remote_name = BTM_CheckEirData(p_search_data->inq_res.p_eir,
+                    BTM_EIR_SHORTENED_LOCAL_NAME_TYPE, &remote_name_len);
+        }
+
+        if (p_eir_remote_name)
+        {
+            if (remote_name_len > BD_NAME_LEN)
+                remote_name_len = BD_NAME_LEN;
+
+            if (p_remote_name && p_remote_name_len)
+            {
+                memcpy(p_remote_name, p_eir_remote_name, remote_name_len);
+                *(p_remote_name + remote_name_len) = 0;
+                *p_remote_name_len = remote_name_len;
+            }
+
+            return TRUE;
+        }
+    }
+
+    return FALSE;
+
+}
+
+/*******************************************************************************
+**
+** Function         check_cached_remote_name
+**
+** Description      Check if remote name is in the NVRAM cache
+**
+** Returns          TRUE if remote name found
+**                  Populate p_remote_name, if provided and remote name found
+**
+*******************************************************************************/
+static BOOLEAN check_cached_remote_name(tBTA_DM_SEARCH *p_search_data,
+                                UINT8 *p_remote_name, UINT8 *p_remote_name_len)
+{
+    bt_bdname_t bdname;
+    bt_bdaddr_t remote_bdaddr;
+    bt_property_t prop_name;
+
+    /* check if we already have it in our btif_storage cache */
+    bdcpy(remote_bdaddr.address, p_search_data->inq_res.bd_addr);
+    BTIF_STORAGE_FILL_PROPERTY(&prop_name, BT_PROPERTY_BDNAME,
+                               sizeof(bt_bdname_t), &bdname);
+    if (btif_storage_get_remote_device_property(
+        &remote_bdaddr, &prop_name) == BT_STATUS_SUCCESS)
+    {
+        if (p_remote_name && p_remote_name_len)
+        {
+            strcpy((char *)p_remote_name, (char *)bdname.name);
+            *p_remote_name_len = strlen((char *)p_remote_name);
+        }
+        return TRUE;
+    }
+
+    return FALSE;
+}
+
+static uint32_t get_cod(const bt_bdaddr_t *remote_bdaddr) {
+    uint32_t    remote_cod;
+    bt_property_t prop_name;
+
+    /* check if we already have it in our btif_storage cache */
+    BTIF_STORAGE_FILL_PROPERTY(&prop_name, BT_PROPERTY_CLASS_OF_DEVICE,
+                               sizeof(uint32_t), &remote_cod);
+    if (btif_storage_get_remote_device_property((bt_bdaddr_t *)remote_bdaddr, &prop_name) == BT_STATUS_SUCCESS)
+    {
+        LOG_INFO(LOG_TAG, "%s remote_cod = 0x%08x", __func__, remote_cod);
+        return remote_cod & COD_MASK;
+    }
+
+    return 0;
+}
+
+BOOLEAN check_cod(const bt_bdaddr_t *remote_bdaddr, uint32_t cod)
+{
+    return get_cod(remote_bdaddr) == cod;
+}
+
+BOOLEAN check_cod_hid(const bt_bdaddr_t *remote_bdaddr)
+{
+    return (get_cod(remote_bdaddr) & COD_HID_MASK) == COD_HID_MAJOR;
+}
+
+BOOLEAN check_hid_le(const bt_bdaddr_t *remote_bdaddr)
+{
+    uint32_t    remote_dev_type;
+    bt_property_t prop_name;
+
+    /* check if we already have it in our btif_storage cache */
+    BTIF_STORAGE_FILL_PROPERTY(&prop_name,BT_PROPERTY_TYPE_OF_DEVICE,
+                               sizeof(uint32_t), &remote_dev_type);
+    if (btif_storage_get_remote_device_property((bt_bdaddr_t *)remote_bdaddr,
+                                &prop_name) == BT_STATUS_SUCCESS)
+    {
+        if (remote_dev_type == BT_DEVICE_DEVTYPE_BLE)
+        {
+            bdstr_t bdstr;
+            bdaddr_to_string(remote_bdaddr, bdstr, sizeof(bdstr));
+            if(btif_config_exist(bdstr, "HidAppId"))
+                return TRUE;
+        }
+    }
+    return FALSE;
+}
+
+/*****************************************************************************
+**
+** Function        check_sdp_bl
+**
+** Description     Checks if a given device is blacklisted to skip sdp
+**
+** Parameters     skip_sdp_entry
+**
+** Returns         TRUE if the device is present in blacklist, else FALSE
+**
+*******************************************************************************/
+BOOLEAN check_sdp_bl(const bt_bdaddr_t *remote_bdaddr)
+{
+    UINT16 manufacturer = 0;
+    UINT8 lmp_ver = 0;
+    UINT16 lmp_subver = 0;
+    bt_property_t prop_name;
+    bt_remote_version_t info;
+
+    if (remote_bdaddr == NULL)
+        return FALSE;
+
+/* fetch additional info about remote device used in iop query */
+    BTM_ReadRemoteVersion(*(BD_ADDR*)remote_bdaddr, &lmp_ver,
+                    &manufacturer, &lmp_subver);
+
+ /* if not available yet, try fetching from config database */
+    BTIF_STORAGE_FILL_PROPERTY(&prop_name, BT_PROPERTY_REMOTE_VERSION_INFO,
+                            sizeof(bt_remote_version_t), &info);
+
+    if (btif_storage_get_remote_device_property((bt_bdaddr_t *)remote_bdaddr,
+                                              &prop_name) != BT_STATUS_SUCCESS)
+    {
+
+        return FALSE;
+    }
+    manufacturer = info.manufacturer;
+
+    for (unsigned int i = 0; i < ARRAY_SIZE(sdp_blacklist); i++)
+    {
+        if (manufacturer == sdp_blacklist[i].manufact_id)
+            return TRUE;
+    }
+    return FALSE;
+}
+
+static void bond_state_changed(bt_status_t status, bt_bdaddr_t *bd_addr, bt_bond_state_t state)
+{
+
+    btif_stats_add_bond_event(bd_addr, BTIF_DM_FUNC_BOND_STATE_CHANGED, state);
+
+    // Send bonding state only once - based on outgoing/incoming we may receive duplicates
+    if ((pairing_cb.state == state) && (state == BT_BOND_STATE_BONDING))
+    {
+        // Cross key pairing so send callback for static address
+        if (!bdaddr_is_empty(&pairing_cb.static_bdaddr))
+        {
+            HAL_CBACK(bt_hal_cbacks, bond_state_changed_cb, status, bd_addr, state);
+        }
+        return;
+    }
+
+    if (pairing_cb.bond_type == BOND_TYPE_TEMPORARY)
+        state = BT_BOND_STATE_NONE;
+
+    BTIF_TRACE_DEBUG("%s: state=%d, prev_state=%d, sdp_attempts = %d", __func__,
+                      state, pairing_cb.state, pairing_cb.sdp_attempts);
+
+    HAL_CBACK(bt_hal_cbacks, bond_state_changed_cb, status, bd_addr, state);
+
+    if (state == BT_BOND_STATE_BONDING)
+    {
+        pairing_cb.state = state;
+        bdcpy(pairing_cb.bd_addr, bd_addr->address);
+    } else {
+#ifdef BLUETOOTH_RTK
+        if(bdcmp(bd_addr->address, pairing_cb.bd_addr) == 0)
+            memset(&pairing_cb, 0, sizeof(pairing_cb));
+#else
+        if (!pairing_cb.sdp_attempts)
+            memset(&pairing_cb, 0, sizeof(pairing_cb));
+        else
+            BTIF_TRACE_DEBUG("%s: BR-EDR service discovery active", __func__);
+#endif
+    }
+}
+
+/* store remote version in bt config to always have access
+   to it post pairing*/
+static void btif_update_remote_version_property(bt_bdaddr_t *p_bd)
+{
+    bt_property_t property;
+    UINT8 lmp_ver = 0;
+    UINT16 lmp_subver = 0;
+    UINT16 mfct_set = 0;
+    tBTM_STATUS btm_status;
+    bt_remote_version_t info;
+    bt_status_t status;
+    bdstr_t bdstr;
+
+    btm_status = BTM_ReadRemoteVersion(*(BD_ADDR*)p_bd, &lmp_ver,
+                          &mfct_set, &lmp_subver);
+
+    LOG_DEBUG(LOG_TAG, "remote version info [%s]: %x, %x, %x", bdaddr_to_string(p_bd, bdstr, sizeof(bdstr)),
+               lmp_ver, mfct_set, lmp_subver);
+
+    if (btm_status == BTM_SUCCESS)
+    {
+        // Always update cache to ensure we have availability whenever BTM API is not populated
+        info.manufacturer = mfct_set;
+        info.sub_ver = lmp_subver;
+        info.version = lmp_ver;
+        BTIF_STORAGE_FILL_PROPERTY(&property,
+                            BT_PROPERTY_REMOTE_VERSION_INFO, sizeof(bt_remote_version_t),
+                            &info);
+        status = btif_storage_set_remote_device_property(p_bd, &property);
+        ASSERTC(status == BT_STATUS_SUCCESS, "failed to save remote version", status);
+    }
+}
+
+static void btif_update_remote_properties(BD_ADDR bd_addr, BD_NAME bd_name,
+                                          DEV_CLASS dev_class, tBT_DEVICE_TYPE device_type)
+{
+    int num_properties = 0;
+    bt_property_t properties[3];
+    bt_bdaddr_t bdaddr;
+    bt_status_t status;
+    UINT32 cod;
+    bt_device_type_t dev_type;
+
+    memset(properties, 0, sizeof(properties));
+    bdcpy(bdaddr.address, bd_addr);
+
+    /* remote name */
+    if (strlen((const char *) bd_name))
+    {
+        BTIF_STORAGE_FILL_PROPERTY(&properties[num_properties],
+                            BT_PROPERTY_BDNAME, strlen((char *)bd_name), bd_name);
+        status = btif_storage_set_remote_device_property(&bdaddr, &properties[num_properties]);
+        ASSERTC(status == BT_STATUS_SUCCESS, "failed to save remote device name", status);
+        num_properties++;
+    }
+
+    /* class of device */
+    cod = devclass2uint(dev_class);
+    BTIF_TRACE_DEBUG("%s cod is 0x%06x", __func__, cod);
+    if ( cod == 0) {
+       /* Try to retrieve cod from storage */
+        BTIF_TRACE_DEBUG("%s cod is 0, checking cod from storage", __func__);
+        BTIF_STORAGE_FILL_PROPERTY(&properties[num_properties],
+            BT_PROPERTY_CLASS_OF_DEVICE, sizeof(cod), &cod);
+        status = btif_storage_get_remote_device_property(&bdaddr, &properties[num_properties]);
+        BTIF_TRACE_DEBUG("%s cod retrieved from storage is 0x%06x", __func__, cod);
+        if ( cod == 0) {
+            BTIF_TRACE_DEBUG("%s cod is again 0, set as unclassified", __func__);
+            cod = COD_UNCLASSIFIED;
+        }
+    }
+
+    BTIF_STORAGE_FILL_PROPERTY(&properties[num_properties],
+                        BT_PROPERTY_CLASS_OF_DEVICE, sizeof(cod), &cod);
+    status = btif_storage_set_remote_device_property(&bdaddr, &properties[num_properties]);
+    ASSERTC(status == BT_STATUS_SUCCESS, "failed to save remote device class", status);
+    num_properties++;
+
+    /* device type */
+    bt_property_t prop_name;
+    uint8_t remote_dev_type;
+    BTIF_STORAGE_FILL_PROPERTY(&prop_name, BT_PROPERTY_TYPE_OF_DEVICE,
+                                sizeof(uint8_t), &remote_dev_type);
+    if (btif_storage_get_remote_device_property(&bdaddr, &prop_name) == BT_STATUS_SUCCESS)
+         dev_type = remote_dev_type | device_type;
+    else
+         dev_type = device_type;
+
+    BTIF_STORAGE_FILL_PROPERTY(&properties[num_properties],
+                        BT_PROPERTY_TYPE_OF_DEVICE, sizeof(dev_type), &dev_type);
+    status = btif_storage_set_remote_device_property(&bdaddr, &properties[num_properties]);
+    ASSERTC(status == BT_STATUS_SUCCESS, "failed to save remote device type", status);
+    num_properties++;
+
+    HAL_CBACK(bt_hal_cbacks, remote_device_properties_cb,
+                     status, &bdaddr, num_properties, properties);
+}
+
+/*******************************************************************************
+**
+** Function         btif_dm_cb_hid_remote_name
+**
+** Description      Remote name callback for HID device. Called in btif context
+**                  Special handling for HID devices
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btif_dm_cb_hid_remote_name(tBTM_REMOTE_DEV_NAME *p_remote_name)
+{
+    BTIF_TRACE_DEBUG("%s: status=%d pairing_cb.state=%d", __FUNCTION__, p_remote_name->status, pairing_cb.state);
+    if (pairing_cb.state == BT_BOND_STATE_BONDING)
+    {
+        bt_bdaddr_t remote_bd;
+
+        bdcpy(remote_bd.address, pairing_cb.bd_addr);
+
+        if (p_remote_name->status == BTM_SUCCESS)
+        {
+            bond_state_changed(BT_STATUS_SUCCESS, &remote_bd, BT_BOND_STATE_BONDED);
+        }
+        else
+            bond_state_changed(BT_STATUS_FAIL, &remote_bd, BT_BOND_STATE_NONE);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btif_dm_cb_create_bond
+**
+** Description      Create bond initiated from the BTIF thread context
+**                  Special handling for HID devices
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btif_dm_cb_create_bond(bt_bdaddr_t *bd_addr, tBTA_TRANSPORT transport)
+{
+    BOOLEAN is_hid = check_cod(bd_addr, COD_HID_POINTING);
+    bond_state_changed(BT_STATUS_SUCCESS, bd_addr, BT_BOND_STATE_BONDING);
+
+#if BLE_INCLUDED == TRUE
+    int device_type;
+    int addr_type;
+    bdstr_t bdstr;
+    bdaddr_to_string(bd_addr, bdstr, sizeof(bdstr));
+    if (transport == BT_TRANSPORT_LE)
+    {
+        if (!btif_config_get_int((char const *)&bdstr,"DevType", &device_type))
+        {
+            btif_config_set_int(bdstr, "DevType", BT_DEVICE_TYPE_BLE);
+        }
+        if (btif_storage_get_remote_addr_type(bd_addr, &addr_type) != BT_STATUS_SUCCESS)
+        {
+            btif_storage_set_remote_addr_type(bd_addr, BLE_ADDR_PUBLIC);
+        }
+    }
+    if((btif_config_get_int((char const *)&bdstr,"DevType", &device_type) &&
+       (btif_storage_get_remote_addr_type(bd_addr, &addr_type) == BT_STATUS_SUCCESS) &&
+       (device_type & BT_DEVICE_TYPE_BLE) == BT_DEVICE_TYPE_BLE) || (transport == BT_TRANSPORT_LE))
+    {
+        BTA_DmAddBleDevice(bd_addr->address, addr_type, device_type);
+    }
+#endif
+
+#if BLE_INCLUDED == TRUE
+    if(is_hid && (device_type & BT_DEVICE_TYPE_BLE) == 0)
+#else
+    if(is_hid)
+#endif
+    {
+        int status;
+        status = btif_hh_connect(bd_addr);
+        if(status != BT_STATUS_SUCCESS)
+            bond_state_changed(status, bd_addr, BT_BOND_STATE_NONE);
+    }
+    else
+    {
+        BTA_DmBondByTransport((UINT8 *)bd_addr->address, transport);
+    }
+    /*  Track  originator of bond creation  */
+    pairing_cb.is_local_initiated = TRUE;
+
+}
+
+/*******************************************************************************
+**
+** Function         btif_dm_cb_remove_bond
+**
+** Description      remove bond initiated from the BTIF thread context
+**                  Special handling for HID devices
+**
+** Returns          void
+**
+*******************************************************************************/
+void btif_dm_cb_remove_bond(bt_bdaddr_t *bd_addr)
+{
+     /*special handling for HID devices */
+     /*  VUP needs to be sent if its a HID Device. The HID HOST module will check if there
+     is a valid hid connection with this bd_addr. If yes VUP will be issued.*/
+#if (defined(BTA_HH_INCLUDED) && (BTA_HH_INCLUDED == TRUE))
+    if (btif_hh_virtual_unplug(bd_addr) != BT_STATUS_SUCCESS)
+#endif
+    {
+         BTIF_TRACE_DEBUG("%s: Removing HH device", __func__);
+         BTA_DmRemoveDevice((UINT8 *)bd_addr->address);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btif_dm_get_connection_state
+**
+** Description      Returns whether the remote device is currently connected
+**                  and whether encryption is active for the connection
+**
+** Returns          0 if not connected; 1 if connected and > 1 if connection is
+**                  encrypted
+**
+*******************************************************************************/
+uint16_t btif_dm_get_connection_state(const bt_bdaddr_t *bd_addr)
+{
+    uint8_t *bda = (uint8_t*)bd_addr->address;
+    uint16_t rc = BTA_DmGetConnectionState(bda);
+
+    if (rc != 0)
+    {
+        uint8_t flags = 0;
+
+        BTM_GetSecurityFlagsByTransport(bda, &flags, BT_TRANSPORT_BR_EDR);
+        BTIF_TRACE_DEBUG("%s: security flags (BR/EDR)=0x%02x", __FUNCTION__, flags);
+        if (flags & BTM_SEC_FLAG_ENCRYPTED)
+            rc |= ENCRYPTED_BREDR;
+
+        BTM_GetSecurityFlagsByTransport(bda, &flags, BT_TRANSPORT_LE);
+        BTIF_TRACE_DEBUG("%s: security flags (LE)=0x%02x", __FUNCTION__, flags);
+        if (flags & BTM_SEC_FLAG_ENCRYPTED)
+            rc |= ENCRYPTED_LE;
+    }
+
+    return rc;
+}
+
+/*******************************************************************************
+**
+** Function         search_devices_copy_cb
+**
+** Description      Deep copy callback for search devices event
+**
+** Returns          void
+**
+*******************************************************************************/
+static void search_devices_copy_cb(UINT16 event, char *p_dest, char *p_src)
+{
+    tBTA_DM_SEARCH *p_dest_data =  (tBTA_DM_SEARCH *) p_dest;
+    tBTA_DM_SEARCH *p_src_data =  (tBTA_DM_SEARCH *) p_src;
+
+    if (!p_src)
+        return;
+
+    BTIF_TRACE_DEBUG("%s: event=%s", __FUNCTION__, dump_dm_search_event(event));
+    maybe_non_aligned_memcpy(p_dest_data, p_src_data, sizeof(*p_src_data));
+    switch (event)
+    {
+        case BTA_DM_INQ_RES_EVT:
+        {
+            if (p_src_data->inq_res.p_eir)
+            {
+                p_dest_data->inq_res.p_eir = (UINT8 *)(p_dest + sizeof(tBTA_DM_SEARCH));
+                memcpy(p_dest_data->inq_res.p_eir, p_src_data->inq_res.p_eir, HCI_EXT_INQ_RESPONSE_LEN);
+            }
+        }
+        break;
+
+        case BTA_DM_DISC_RES_EVT:
+        {
+            if (p_src_data->disc_res.raw_data_size && p_src_data->disc_res.p_raw_data)
+            {
+                p_dest_data->disc_res.p_raw_data = (UINT8 *)(p_dest + sizeof(tBTA_DM_SEARCH));
+                memcpy(p_dest_data->disc_res.p_raw_data,
+                    p_src_data->disc_res.p_raw_data, p_src_data->disc_res.raw_data_size);
+            }
+        }
+        break;
+    }
+}
+
+static void search_services_copy_cb(UINT16 event, char *p_dest, char *p_src)
+{
+    tBTA_DM_SEARCH *p_dest_data =  (tBTA_DM_SEARCH *) p_dest;
+    tBTA_DM_SEARCH *p_src_data =  (tBTA_DM_SEARCH *) p_src;
+
+    if (!p_src)
+        return;
+    maybe_non_aligned_memcpy(p_dest_data, p_src_data, sizeof(*p_src_data));
+    switch (event)
+    {
+         case BTA_DM_DISC_RES_EVT:
+         {
+              if (p_src_data->disc_res.result == BTA_SUCCESS)
+              {
+                  if (p_src_data->disc_res.num_uuids > 0)
+                  {
+                       p_dest_data->disc_res.p_uuid_list =
+                                                        (UINT8*)(p_dest + sizeof(tBTA_DM_SEARCH));
+                       memcpy(p_dest_data->disc_res.p_uuid_list, p_src_data->disc_res.p_uuid_list,
+                              p_src_data->disc_res.num_uuids*MAX_UUID_SIZE);
+                       osi_free_and_reset((void **)&p_src_data->disc_res.p_uuid_list);
+                  }
+#ifdef BLUETOOTH_RTK
+                  if (p_src_data->disc_res.p_raw_data != NULL)
+#endif
+                       osi_free_and_reset((void **)&p_src_data->disc_res.p_raw_data);
+              }
+         } break;
+    }
+}
+/******************************************************************************
+**
+**  BTIF DM callback events
+**
+*****************************************************************************/
+
+/*******************************************************************************
+**
+** Function         btif_dm_pin_req_evt
+**
+** Description      Executes pin request event in btif context
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btif_dm_pin_req_evt(tBTA_DM_PIN_REQ *p_pin_req)
+{
+    bt_bdaddr_t bd_addr;
+    bt_bdname_t bd_name;
+    UINT32 cod;
+    bt_pin_code_t pin_code;
+    int dev_type;
+
+    /* Remote properties update */
+    if (!btif_get_device_type(p_pin_req->bd_addr, &dev_type))
+    {
+        dev_type = BT_DEVICE_TYPE_BREDR;
+    }
+    btif_update_remote_properties(p_pin_req->bd_addr, p_pin_req->bd_name,
+                                  p_pin_req->dev_class, (tBT_DEVICE_TYPE) dev_type);
+
+    bdcpy(bd_addr.address, p_pin_req->bd_addr);
+    memcpy(bd_name.name, p_pin_req->bd_name, BD_NAME_LEN);
+
+    bond_state_changed(BT_STATUS_SUCCESS, &bd_addr, BT_BOND_STATE_BONDING);
+
+    cod = devclass2uint(p_pin_req->dev_class);
+
+    if (cod == 0) {
+        BTIF_TRACE_DEBUG("%s cod is 0, set as unclassified", __func__);
+        cod = COD_UNCLASSIFIED;
+    }
+
+    /* check for auto pair possiblity only if bond was initiated by local device */
+    if (pairing_cb.is_local_initiated && (p_pin_req->min_16_digit == FALSE))
+    {
+        if (check_cod(&bd_addr, COD_AV_HEADSETS) ||
+            check_cod(&bd_addr, COD_AV_HANDSFREE) ||
+            check_cod(&bd_addr, COD_AV_HEADPHONES) ||
+            check_cod(&bd_addr, COD_AV_PORTABLE_AUDIO) ||
+            check_cod(&bd_addr, COD_AV_HIFI_AUDIO) ||
+            check_cod(&bd_addr, COD_HID_POINTING))
+        {
+            /*  Check if this device can be auto paired  */
+            if (!interop_match_addr(INTEROP_DISABLE_AUTO_PAIRING, &bd_addr) &&
+                !interop_match_name(INTEROP_DISABLE_AUTO_PAIRING, (const char *)bd_name.name) &&
+                (pairing_cb.autopair_attempts == 0))
+            {
+                BTIF_TRACE_DEBUG("%s() Attempting auto pair", __FUNCTION__);
+                pin_code.pin[0] = 0x30;
+                pin_code.pin[1] = 0x30;
+                pin_code.pin[2] = 0x30;
+                pin_code.pin[3] = 0x30;
+
+                pairing_cb.autopair_attempts++;
+                BTA_DmPinReply( (UINT8*)bd_addr.address, TRUE, 4, pin_code.pin);
+                return;
+            }
+        }
+        else if (check_cod(&bd_addr, COD_HID_KEYBOARD) ||
+                 check_cod(&bd_addr, COD_HID_COMBO))
+        {
+            if ((interop_match_addr(INTEROP_KEYBOARD_REQUIRES_FIXED_PIN, &bd_addr) == TRUE) &&
+                (pairing_cb.autopair_attempts == 0))
+            {
+                BTIF_TRACE_DEBUG("%s() Attempting auto pair", __FUNCTION__);
+                pin_code.pin[0] = 0x30;
+                pin_code.pin[1] = 0x30;
+                pin_code.pin[2] = 0x30;
+                pin_code.pin[3] = 0x30;
+
+                pairing_cb.autopair_attempts++;
+                BTA_DmPinReply( (UINT8*)bd_addr.address, TRUE, 4, pin_code.pin);
+                return;
+            }
+        }
+    }
+    HAL_CBACK(bt_hal_cbacks, pin_request_cb,
+                     &bd_addr, &bd_name, cod, p_pin_req->min_16_digit);
+}
+
+/*******************************************************************************
+**
+** Function         btif_dm_ssp_cfm_req_evt
+**
+** Description      Executes SSP confirm request event in btif context
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btif_dm_ssp_cfm_req_evt(tBTA_DM_SP_CFM_REQ *p_ssp_cfm_req)
+{
+    bt_bdaddr_t bd_addr;
+    bt_bdname_t bd_name;
+    UINT32 cod;
+    BOOLEAN is_incoming = !(pairing_cb.state == BT_BOND_STATE_BONDING);
+    int dev_type;
+
+    BTIF_TRACE_DEBUG("%s", __FUNCTION__);
+
+    /* Remote properties update */
+    if (!btif_get_device_type(p_ssp_cfm_req->bd_addr, &dev_type))
+    {
+        dev_type = BT_DEVICE_TYPE_BREDR;
+    }
+    btif_update_remote_properties(p_ssp_cfm_req->bd_addr, p_ssp_cfm_req->bd_name,
+                                  p_ssp_cfm_req->dev_class, (tBT_DEVICE_TYPE) dev_type);
+
+    bdcpy(bd_addr.address, p_ssp_cfm_req->bd_addr);
+    memcpy(bd_name.name, p_ssp_cfm_req->bd_name, BD_NAME_LEN);
+
+    /* Set the pairing_cb based on the local & remote authentication requirements */
+    bond_state_changed(BT_STATUS_SUCCESS, &bd_addr, BT_BOND_STATE_BONDING);
+
+    /* if just_works and bonding bit is not set treat this as temporary */
+    if (p_ssp_cfm_req->just_works && !(p_ssp_cfm_req->loc_auth_req & BTM_AUTH_BONDS) &&
+        !(p_ssp_cfm_req->rmt_auth_req & BTM_AUTH_BONDS) &&
+        !(check_cod((bt_bdaddr_t*)&p_ssp_cfm_req->bd_addr, COD_HID_POINTING)))
+        pairing_cb.bond_type = BOND_TYPE_TEMPORARY;
+    else
+        pairing_cb.bond_type = BOND_TYPE_PERSISTENT;
+
+    btm_set_bond_type_dev(p_ssp_cfm_req->bd_addr, pairing_cb.bond_type);
+
+    pairing_cb.is_ssp = TRUE;
+
+    /* If JustWorks auto-accept */
+    if (p_ssp_cfm_req->just_works)
+    {
+        /* Pairing consent for JustWorks needed if:
+         * 1. Incoming (non-temporary) pairing is detected AND
+         * 2. local IO capabilities are DisplayYesNo AND
+         * 3. remote IO capabiltiies are DisplayOnly or NoInputNoOutput;
+         */
+        if (is_incoming && pairing_cb.bond_type != BOND_TYPE_TEMPORARY &&
+               ((p_ssp_cfm_req->loc_io_caps == HCI_IO_CAP_DISPLAY_YESNO) &&
+                (p_ssp_cfm_req->rmt_io_caps == HCI_IO_CAP_DISPLAY_ONLY ||
+                 p_ssp_cfm_req->rmt_io_caps == HCI_IO_CAP_NO_IO)))
+        {
+            BTIF_TRACE_EVENT("%s: User consent needed for incoming pairing request. loc_io_caps: %d, rmt_io_caps: %d",
+                __FUNCTION__, p_ssp_cfm_req->loc_io_caps, p_ssp_cfm_req->rmt_io_caps);
+        }
+        else
+        {
+            BTIF_TRACE_EVENT("%s: Auto-accept JustWorks pairing", __FUNCTION__);
+            btif_dm_ssp_reply(&bd_addr, BT_SSP_VARIANT_CONSENT, TRUE, 0);
+            return;
+        }
+    }
+
+    cod = devclass2uint(p_ssp_cfm_req->dev_class);
+
+    if (cod == 0) {
+        LOG_DEBUG(LOG_TAG, "%s cod is 0, set as unclassified", __func__);
+        cod = COD_UNCLASSIFIED;
+    }
+
+    pairing_cb.sdp_attempts = 0;
+    HAL_CBACK(bt_hal_cbacks, ssp_request_cb, &bd_addr, &bd_name, cod,
+                     (p_ssp_cfm_req->just_works ? BT_SSP_VARIANT_CONSENT : BT_SSP_VARIANT_PASSKEY_CONFIRMATION),
+                     p_ssp_cfm_req->num_val);
+}
+
+static void btif_dm_ssp_key_notif_evt(tBTA_DM_SP_KEY_NOTIF *p_ssp_key_notif)
+{
+    bt_bdaddr_t bd_addr;
+    bt_bdname_t bd_name;
+    UINT32 cod;
+    int dev_type;
+
+    BTIF_TRACE_DEBUG("%s", __FUNCTION__);
+
+    /* Remote properties update */
+    if (!btif_get_device_type(p_ssp_key_notif->bd_addr, &dev_type))
+    {
+        dev_type = BT_DEVICE_TYPE_BREDR;
+    }
+    btif_update_remote_properties(p_ssp_key_notif->bd_addr, p_ssp_key_notif->bd_name,
+                                  p_ssp_key_notif->dev_class, (tBT_DEVICE_TYPE) dev_type);
+
+    bdcpy(bd_addr.address, p_ssp_key_notif->bd_addr);
+    memcpy(bd_name.name, p_ssp_key_notif->bd_name, BD_NAME_LEN);
+
+    bond_state_changed(BT_STATUS_SUCCESS, &bd_addr, BT_BOND_STATE_BONDING);
+    pairing_cb.is_ssp = TRUE;
+    cod = devclass2uint(p_ssp_key_notif->dev_class);
+
+    if (cod == 0) {
+        LOG_DEBUG(LOG_TAG, "%s cod is 0, set as unclassified", __func__);
+        cod = COD_UNCLASSIFIED;
+    }
+
+    HAL_CBACK(bt_hal_cbacks, ssp_request_cb, &bd_addr, &bd_name,
+                     cod, BT_SSP_VARIANT_PASSKEY_NOTIFICATION,
+                     p_ssp_key_notif->passkey);
+}
+/*******************************************************************************
+**
+** Function         btif_dm_auth_cmpl_evt
+**
+** Description      Executes authentication complete event in btif context
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btif_dm_auth_cmpl_evt (tBTA_DM_AUTH_CMPL *p_auth_cmpl)
+{
+    /* Save link key, if not temporary */
+    bt_bdaddr_t bd_addr;
+    bt_status_t status = BT_STATUS_FAIL;
+    bt_bond_state_t state = BT_BOND_STATE_NONE;
+    BOOLEAN skip_sdp = FALSE;
+
+    BTIF_TRACE_DEBUG("%s: bond state=%d", __func__, pairing_cb.state);
+
+    bdcpy(bd_addr.address, p_auth_cmpl->bd_addr);
+    if ( (p_auth_cmpl->success == TRUE) && (p_auth_cmpl->key_present) )
+    {
+        if ((p_auth_cmpl->key_type < HCI_LKEY_TYPE_DEBUG_COMB) ||
+            (p_auth_cmpl->key_type == HCI_LKEY_TYPE_AUTH_COMB) ||
+            (p_auth_cmpl->key_type == HCI_LKEY_TYPE_CHANGED_COMB) ||
+            (p_auth_cmpl->key_type == HCI_LKEY_TYPE_AUTH_COMB_P_256) ||
+            pairing_cb.bond_type == BOND_TYPE_PERSISTENT)
+        {
+            bt_status_t ret;
+            BTIF_TRACE_DEBUG("%s: Storing link key. key_type=0x%x, bond_type=%d",
+                __FUNCTION__, p_auth_cmpl->key_type, pairing_cb.bond_type);
+            ret = btif_storage_add_bonded_device(&bd_addr,
+                                p_auth_cmpl->key, p_auth_cmpl->key_type,
+                                pairing_cb.pin_code_len);
+            ASSERTC(ret == BT_STATUS_SUCCESS, "storing link key failed", ret);
+        }
+        else
+        {
+            BTIF_TRACE_DEBUG("%s: Temporary key. Not storing. key_type=0x%x, bond_type=%d",
+                __FUNCTION__, p_auth_cmpl->key_type, pairing_cb.bond_type);
+            if(pairing_cb.bond_type == BOND_TYPE_TEMPORARY)
+            {
+                BTIF_TRACE_DEBUG("%s: sending BT_BOND_STATE_NONE for Temp pairing",
+                        __FUNCTION__);
+                btif_storage_remove_bonded_device(&bd_addr);
+                bond_state_changed(BT_STATUS_SUCCESS, &bd_addr, BT_BOND_STATE_NONE);
+                return;
+            }
+        }
+    }
+
+    // We could have received a new link key without going through the pairing flow.
+    // If so, we don't want to perform SDP or any other operations on the authenticated
+    // device.
+    if (bdcmp(p_auth_cmpl->bd_addr, pairing_cb.bd_addr) != 0) {
+      char address[32];
+      bt_bdaddr_t bt_bdaddr;
+
+      memcpy(bt_bdaddr.address, p_auth_cmpl->bd_addr,
+             sizeof(bt_bdaddr.address));
+      bdaddr_to_string(&bt_bdaddr, address, sizeof(address));
+      LOG_INFO(LOG_TAG, "%s skipping SDP since we did not initiate pairing to %s.", __func__, address);
+      return;
+    }
+
+    // Skip SDP for certain  HID Devices
+    if (p_auth_cmpl->success)
+    {
+#if BLE_INCLUDED == TRUE
+        btif_storage_set_remote_addr_type(&bd_addr, p_auth_cmpl->addr_type);
+#endif
+        btif_update_remote_properties(p_auth_cmpl->bd_addr,
+                                      p_auth_cmpl->bd_name, NULL, p_auth_cmpl->dev_type);
+        pairing_cb.timeout_retries = 0;
+        status = BT_STATUS_SUCCESS;
+        state = BT_BOND_STATE_BONDED;
+        bdcpy(bd_addr.address, p_auth_cmpl->bd_addr);
+
+        if (check_sdp_bl(&bd_addr) && check_cod_hid(&bd_addr))
+        {
+            LOG_WARN(LOG_TAG, "%s:skip SDP", __FUNCTION__);
+            skip_sdp = TRUE;
+        }
+        if(!pairing_cb.is_local_initiated && skip_sdp)
+        {
+            bond_state_changed(status, &bd_addr, state);
+
+            LOG_WARN(LOG_TAG, "%s: Incoming HID Connection",__FUNCTION__);
+            bt_property_t prop;
+            bt_bdaddr_t bd_addr;
+            bt_uuid_t  uuid;
+            char uuid_str[128] = UUID_HUMAN_INTERFACE_DEVICE;
+
+            string_to_uuid(uuid_str, &uuid);
+
+            prop.type = BT_PROPERTY_UUIDS;
+            prop.val = uuid.uu;
+            prop.len = MAX_UUID_SIZE;
+
+            /* Send the event to the BTIF */
+            HAL_CBACK(bt_hal_cbacks, remote_device_properties_cb,
+                             BT_STATUS_SUCCESS, &bd_addr, 1, &prop);
+        }
+        else
+        {
+#if BLE_INCLUDED == TRUE
+            BOOLEAN is_crosskey = FALSE;
+            /* If bonded due to cross-key, save the static address too*/
+            if(pairing_cb.state == BT_BOND_STATE_BONDING &&
+              (bdcmp(p_auth_cmpl->bd_addr, pairing_cb.bd_addr) != 0))
+            {
+                BTIF_TRACE_DEBUG("%s: bonding initiated due to cross key, adding static address",
+                                 __func__);
+                bdcpy(pairing_cb.static_bdaddr.address, p_auth_cmpl->bd_addr);
+                is_crosskey = TRUE;
+            }
+            if (!is_crosskey || !(stack_config_get_interface()->get_pts_crosskey_sdp_disable()))
+            {
+#endif
+
+                // Ensure inquiry is stopped before attempting service discovery
+                btif_dm_cancel_discovery();
+
+                /* Trigger SDP on the device */
+                pairing_cb.sdp_attempts = 1;
+                btif_dm_get_remote_services(&bd_addr);
+#if BLE_INCLUDED == TRUE
+            }
+#endif
+        }
+        // Do not call bond_state_changed_cb yet. Wait until remote service discovery is complete
+    }
+    else
+    {
+        // Map the HCI fail reason  to  bt status
+        switch(p_auth_cmpl->fail_reason)
+        {
+            case HCI_ERR_PAGE_TIMEOUT:
+                if (interop_match_addr(INTEROP_AUTO_RETRY_PAIRING, &bd_addr)
+                    && pairing_cb.timeout_retries)
+                {
+                    BTIF_TRACE_WARNING("%s() - Pairing timeout; retrying (%d) ...", __FUNCTION__, pairing_cb.timeout_retries);
+                    --pairing_cb.timeout_retries;
+                    btif_dm_cb_create_bond (&bd_addr, BTA_TRANSPORT_UNKNOWN);
+                    return;
+                }
+                /* Fall-through */
+            case HCI_ERR_CONNECTION_TOUT:
+                status =  BT_STATUS_RMT_DEV_DOWN;
+                break;
+
+            case HCI_ERR_PAIRING_NOT_ALLOWED:
+                status = BT_STATUS_AUTH_REJECTED;
+                break;
+
+            case HCI_ERR_LMP_RESPONSE_TIMEOUT:
+                status =  BT_STATUS_AUTH_FAILURE;
+                break;
+
+            /* map the auth failure codes, so we can retry pairing if necessary */
+            case HCI_ERR_AUTH_FAILURE:
+            case HCI_ERR_KEY_MISSING:
+                btif_storage_remove_bonded_device(&bd_addr);
+            case HCI_ERR_HOST_REJECT_SECURITY:
+            case HCI_ERR_ENCRY_MODE_NOT_ACCEPTABLE:
+            case HCI_ERR_UNIT_KEY_USED:
+            case HCI_ERR_PAIRING_WITH_UNIT_KEY_NOT_SUPPORTED:
+            case HCI_ERR_INSUFFCIENT_SECURITY:
+            case HCI_ERR_PEER_USER:
+            case HCI_ERR_UNSPECIFIED:
+                BTIF_TRACE_DEBUG(" %s() Authentication fail reason %d",
+                    __FUNCTION__, p_auth_cmpl->fail_reason);
+                if (pairing_cb.autopair_attempts  == 1)
+                {
+                    /* Create the Bond once again */
+                    BTIF_TRACE_WARNING("%s() auto pair failed. Reinitiate Bond", __FUNCTION__);
+                    btif_dm_cb_create_bond (&bd_addr, BTA_TRANSPORT_UNKNOWN);
+                    return;
+                }
+                else
+                {
+                    /* if autopair attempts are more than 1, or not attempted */
+                    status =  BT_STATUS_AUTH_FAILURE;
+                }
+                break;
+
+            default:
+                status =  BT_STATUS_FAIL;
+        }
+        /* Special Handling for HID Devices */
+        if (check_cod(&bd_addr, COD_HID_POINTING)) {
+            /* Remove Device as bonded in nvram as authentication failed */
+            BTIF_TRACE_DEBUG("%s(): removing hid pointing device from nvram", __FUNCTION__);
+            btif_storage_remove_bonded_device(&bd_addr);
+        }
+        bond_state_changed(status, &bd_addr, state);
+    }
+}
+
+/******************************************************************************
+**
+** Function         btif_dm_search_devices_evt
+**
+** Description      Executes search devices callback events in btif context
+**
+** Returns          void
+**
+******************************************************************************/
+static void btif_dm_search_devices_evt (UINT16 event, char *p_param)
+{
+    tBTA_DM_SEARCH *p_search_data;
+    BTIF_TRACE_EVENT("%s event=%s", __FUNCTION__, dump_dm_search_event(event));
+
+    switch (event)
+    {
+        case BTA_DM_DISC_RES_EVT:
+        {
+            p_search_data = (tBTA_DM_SEARCH *)p_param;
+            /* Remote name update */
+            if (strlen((const char *) p_search_data->disc_res.bd_name))
+            {
+                bt_property_t properties[1];
+                bt_bdaddr_t bdaddr;
+                bt_status_t status;
+
+                properties[0].type = BT_PROPERTY_BDNAME;
+                properties[0].val = p_search_data->disc_res.bd_name;
+                properties[0].len = strlen((char *)p_search_data->disc_res.bd_name);
+                bdcpy(bdaddr.address, p_search_data->disc_res.bd_addr);
+
+                status = btif_storage_set_remote_device_property(&bdaddr, &properties[0]);
+                ASSERTC(status == BT_STATUS_SUCCESS, "failed to save remote device property", status);
+                HAL_CBACK(bt_hal_cbacks, remote_device_properties_cb,
+                                 status, &bdaddr, 1, properties);
+            }
+            /* TODO: Services? */
+        }
+        break;
+
+        case BTA_DM_INQ_RES_EVT:
+        {
+            /* inquiry result */
+            UINT32 cod;
+            bt_bdname_t bdname;
+            bt_bdaddr_t bdaddr;
+            UINT8 remote_name_len;
+            tBTA_SERVICE_MASK services = 0;
+            bdstr_t bdstr;
+
+            p_search_data = (tBTA_DM_SEARCH *)p_param;
+            bdcpy(bdaddr.address, p_search_data->inq_res.bd_addr);
+
+            BTIF_TRACE_DEBUG("%s() %s device_type = 0x%x\n", __FUNCTION__, bdaddr_to_string(&bdaddr, bdstr, sizeof(bdstr)),
+#if (BLE_INCLUDED == TRUE)
+                    p_search_data->inq_res.device_type);
+#else
+                    BT_DEVICE_TYPE_BREDR);
+#endif
+            bdname.name[0] = 0;
+
+            cod = devclass2uint (p_search_data->inq_res.dev_class);
+
+            if (cod == 0) {
+                LOG_DEBUG(LOG_TAG, "%s cod is 0, set as unclassified", __func__);
+                cod = COD_UNCLASSIFIED;
+            }
+
+            if (!check_eir_remote_name(p_search_data, bdname.name, &remote_name_len))
+                check_cached_remote_name(p_search_data, bdname.name, &remote_name_len);
+
+            /* Check EIR for remote name and services */
+            if (p_search_data->inq_res.p_eir)
+            {
+                BTA_GetEirService(p_search_data->inq_res.p_eir, &services);
+                BTIF_TRACE_DEBUG("%s()EIR BTA services = %08X", __FUNCTION__, (UINT32)services);
+                /* TODO:  Get the service list and check to see which uuids we got and send it back to the client. */
+            }
+
+            {
+#ifdef BLUETOOTH_RTK
+                UINT8 manufact_length = 0;
+                UINT8* p_manufacter = NULL;
+                bt_remote_version_t info;
+                memset(&info, 0 , sizeof(bt_remote_version_t));
+                if (p_search_data->inq_res.p_eir && (p_search_data->inq_res.device_type != BT_DEVICE_TYPE_BREDR))
+                {
+                    p_manufacter =  BTM_CheckEirData(p_search_data->inq_res.p_eir, BTM_EIR_MANUFACTURER_SPECIFIC_TYPE,&manufact_length);
+                    if(p_manufacter) {
+                        info.manufacturer = p_manufacter[0] + (p_manufacter[1] << 8);
+                        BTIF_TRACE_DEBUG("%s manufacturer = 0x%04x", __FUNCTION__, info.manufacturer);
+                    }
+                }
+                bt_property_t properties[6];
+#else
+                bt_property_t properties[5];
+#endif
+                bt_device_type_t dev_type;
+                uint32_t num_properties = 0;
+                bt_status_t status;
+                int addr_type = 0;
+
+                memset(properties, 0, sizeof(properties));
+                /* BD_ADDR */
+                BTIF_STORAGE_FILL_PROPERTY(&properties[num_properties],
+                                    BT_PROPERTY_BDADDR, sizeof(bdaddr), &bdaddr);
+                num_properties++;
+                /* BD_NAME */
+                /* Don't send BDNAME if it is empty */
+                if (bdname.name[0])
+                {
+                    BTIF_STORAGE_FILL_PROPERTY(&properties[num_properties],
+                                               BT_PROPERTY_BDNAME,
+                                               strlen((char *)bdname.name), &bdname);
+                    num_properties++;
+                }
+
+                /* DEV_CLASS */
+                BTIF_STORAGE_FILL_PROPERTY(&properties[num_properties],
+                                    BT_PROPERTY_CLASS_OF_DEVICE, sizeof(cod), &cod);
+                num_properties++;
+                /* DEV_TYPE */
+#if (defined(BLE_INCLUDED) && (BLE_INCLUDED == TRUE))
+                /* FixMe: Assumption is that bluetooth.h and BTE enums match */
+
+                /* Verify if the device is dual mode in NVRAM */
+                int stored_device_type = 0;
+                if (btif_get_device_type(bdaddr.address, &stored_device_type) &&
+                    ((stored_device_type != BT_DEVICE_TYPE_BREDR &&
+                        p_search_data->inq_res.device_type == BT_DEVICE_TYPE_BREDR) ||
+                     (stored_device_type != BT_DEVICE_TYPE_BLE &&
+                        p_search_data->inq_res.device_type == BT_DEVICE_TYPE_BLE))) {
+                    dev_type = BT_DEVICE_TYPE_DUMO;
+                } else {
+                    dev_type = p_search_data->inq_res.device_type;
+                }
+
+                if (p_search_data->inq_res.device_type == BT_DEVICE_TYPE_BLE)
+                    addr_type = p_search_data->inq_res.ble_addr_type;
+#else
+                dev_type = BT_DEVICE_TYPE_BREDR;
+#endif
+                BTIF_STORAGE_FILL_PROPERTY(&properties[num_properties],
+                                    BT_PROPERTY_TYPE_OF_DEVICE, sizeof(dev_type), &dev_type);
+                num_properties++;
+                /* RSSI */
+                BTIF_STORAGE_FILL_PROPERTY(&properties[num_properties],
+                                    BT_PROPERTY_REMOTE_RSSI, sizeof(int8_t),
+                                    &(p_search_data->inq_res.rssi));
+                num_properties++;
+
+#ifdef BLUETOOTH_RTK
+                BTIF_STORAGE_FILL_PROPERTY(&properties[num_properties],
+                                    BT_PROPERTY_REMOTE_VERSION_INFO, sizeof(bt_remote_version_t),
+                                    &info);
+                num_properties++;
+#endif
+
+                status = btif_storage_add_remote_device(&bdaddr, num_properties, properties);
+                ASSERTC(status == BT_STATUS_SUCCESS, "failed to save remote device (inquiry)", status);
+#if (defined(BLE_INCLUDED) && (BLE_INCLUDED == TRUE))
+                status = btif_storage_set_remote_addr_type(&bdaddr, addr_type);
+                ASSERTC(status == BT_STATUS_SUCCESS, "failed to save remote addr type (inquiry)", status);
+#endif
+                /* Callback to notify upper layer of device */
+                HAL_CBACK(bt_hal_cbacks, device_found_cb,
+                                 num_properties, properties);
+            }
+        }
+        break;
+
+        case BTA_DM_INQ_CMPL_EVT:
+        {
+#if (defined(BLE_INCLUDED) && (BLE_INCLUDED == TRUE))
+            tBTA_DM_BLE_PF_FILT_PARAMS adv_filt_param;
+            memset(&adv_filt_param, 0, sizeof(tBTA_DM_BLE_PF_FILT_PARAMS));
+            BTA_DmBleScanFilterSetup(BTA_DM_BLE_SCAN_COND_DELETE, 0, &adv_filt_param, NULL,
+                                     bte_scan_filt_param_cfg_evt, 0);
+#endif
+        }
+        break;
+        case BTA_DM_DISC_CMPL_EVT:
+        {
+            HAL_CBACK(bt_hal_cbacks, discovery_state_changed_cb, BT_DISCOVERY_STOPPED);
+        }
+        break;
+        case BTA_DM_SEARCH_CANCEL_CMPL_EVT:
+        {
+           /* if inquiry is not in progress and we get a cancel event, then
+            * it means we are done with inquiry, but remote_name fetches are in
+            * progress
+            *
+            * if inquiry  is in progress, then we don't want to act on this cancel_cmpl_evt
+            * but instead wait for the cancel_cmpl_evt via the Busy Level
+            *
+            */
+           if (btif_dm_inquiry_in_progress == FALSE)
+           {
+#if (defined(BLE_INCLUDED) && (BLE_INCLUDED == TRUE))
+               tBTA_DM_BLE_PF_FILT_PARAMS adv_filt_param;
+               memset(&adv_filt_param, 0, sizeof(tBTA_DM_BLE_PF_FILT_PARAMS));
+               BTA_DmBleScanFilterSetup(BTA_DM_BLE_SCAN_COND_DELETE, 0, &adv_filt_param, NULL,
+                                        bte_scan_filt_param_cfg_evt, 0);
+#endif
+               HAL_CBACK(bt_hal_cbacks, discovery_state_changed_cb, BT_DISCOVERY_STOPPED);
+           }
+        }
+        break;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btif_dm_search_services_evt
+**
+** Description      Executes search services event in btif context
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btif_dm_search_services_evt(UINT16 event, char *p_param)
+{
+    tBTA_DM_SEARCH *p_data = (tBTA_DM_SEARCH*)p_param;
+
+    BTIF_TRACE_EVENT("%s:  event = %d", __FUNCTION__, event);
+    switch (event)
+    {
+        case BTA_DM_DISC_RES_EVT:
+        {
+            bt_property_t prop;
+            uint32_t i = 0;
+            bt_bdaddr_t bd_addr;
+            bt_status_t ret;
+
+            bdcpy(bd_addr.address, p_data->disc_res.bd_addr);
+
+            BTIF_TRACE_DEBUG("%s:(result=0x%x, services 0x%x)", __FUNCTION__,
+                    p_data->disc_res.result, p_data->disc_res.services);
+            if  ((p_data->disc_res.result != BTA_SUCCESS) &&
+                 (pairing_cb.state == BT_BOND_STATE_BONDING ) &&
+                 (pairing_cb.sdp_attempts < BTIF_DM_MAX_SDP_ATTEMPTS_AFTER_PAIRING))
+            {
+                BTIF_TRACE_WARNING("%s:SDP failed after bonding re-attempting", __FUNCTION__);
+                pairing_cb.sdp_attempts++;
+                btif_dm_get_remote_services(&bd_addr);
+                return;
+            }
+            prop.type = BT_PROPERTY_UUIDS;
+            prop.len = 0;
+            if ((p_data->disc_res.result == BTA_SUCCESS) && (p_data->disc_res.num_uuids > 0))
+            {
+                 prop.val = p_data->disc_res.p_uuid_list;
+                 prop.len = p_data->disc_res.num_uuids * MAX_UUID_SIZE;
+                 for (i=0; i < p_data->disc_res.num_uuids; i++)
+                 {
+                      char temp[256];
+                      uuid_to_string_legacy((bt_uuid_t*)(p_data->disc_res.p_uuid_list + (i*MAX_UUID_SIZE)), temp);
+                      LOG_INFO(LOG_TAG, "%s index:%d uuid:%s", __func__, i, temp);
+                 }
+            }
+
+            /* onUuidChanged requires getBondedDevices to be populated.
+            ** bond_state_changed needs to be sent prior to remote_device_property
+            */
+            if ((pairing_cb.state == BT_BOND_STATE_BONDING) &&
+                ((bdcmp(p_data->disc_res.bd_addr, pairing_cb.bd_addr) == 0) ||
+                 (bdcmp(p_data->disc_res.bd_addr, pairing_cb.static_bdaddr.address) == 0)) &&
+                  pairing_cb.sdp_attempts > 0)
+            {
+                 BTIF_TRACE_DEBUG("%s Remote Service SDP done. Call bond_state_changed_cb BONDED",
+                                   __FUNCTION__);
+                 pairing_cb.sdp_attempts  = 0;
+
+                 // If bonding occured due to cross-key pairing, send bonding callback
+                 // for static address now
+                 if (bdcmp(p_data->disc_res.bd_addr, pairing_cb.static_bdaddr.address) == 0)
+                    bond_state_changed(BT_STATUS_SUCCESS, &bd_addr, BT_BOND_STATE_BONDING);
+
+                 bond_state_changed(BT_STATUS_SUCCESS, &bd_addr, BT_BOND_STATE_BONDED);
+            }
+
+            if (p_data->disc_res.num_uuids != 0)
+            {
+                /* Also write this to the NVRAM */
+                ret = btif_storage_set_remote_device_property(&bd_addr, &prop);
+                ASSERTC(ret == BT_STATUS_SUCCESS, "storing remote services failed", ret);
+                /* Send the event to the BTIF */
+                HAL_CBACK(bt_hal_cbacks, remote_device_properties_cb,
+                                 BT_STATUS_SUCCESS, &bd_addr, 1, &prop);
+            }
+        }
+        break;
+
+        case BTA_DM_DISC_CMPL_EVT:
+            /* fixme */
+#ifdef BLUETOOTH_RTK
+        {
+            bt_bdaddr_t bd_addr;
+            bdcpy(bd_addr.address, p_data->disc_res.bd_addr);
+            tBT_DEVICE_TYPE device_type;
+            tBLE_ADDR_TYPE addr_type;
+            BTM_ReadDevInfo(p_data->disc_res.bd_addr,&device_type,&addr_type);
+            BOOLEAN is_hid = check_cod_hid(&bd_addr);
+            BTIF_TRACE_ERROR("%s: device_type: 0x%x", __FUNCTION__,p_data->disc_res.device_type);
+            if(is_hid && device_type == BT_DEVICE_TYPE_BLE)
+            {
+                BTIF_TRACE_DEBUG("%s  in BTA_DM_DISC_CMPL_EVT the device is ble hid",__FUNCTION__);
+                if((pairing_cb.state == BT_BOND_STATE_BONDING) && (bdcmp(p_data->disc_res.bd_addr, pairing_cb.bd_addr) == 0))
+                {
+                    if(p_data->disc_res.result == BTA_SUCCESS)
+                    {
+                         bond_state_changed(BT_STATUS_SUCCESS, &bd_addr, BT_BOND_STATE_BONDED);
+                         BTIF_TRACE_DEBUG("%s  in BTA_DM_DISC_CMPL_EVT bond state change bonded",__FUNCTION__);
+                    }
+                    else
+                    {
+                          btif_dm_remove_ble_bonding_keys();
+                          bond_state_changed(BT_STATUS_SUCCESS, &bd_addr, BT_BOND_STATE_NONE);
+                    }
+                }
+            }
+       }
+#endif
+
+        break;
+
+#if (defined(BLE_INCLUDED) && (BLE_INCLUDED == TRUE))
+        case BTA_DM_DISC_BLE_RES_EVT:
+             BTIF_TRACE_DEBUG("%s:, services 0x%x)", __FUNCTION__,
+                                p_data->disc_ble_res.service.uu.uuid16);
+             bt_uuid_t  uuid;
+             int i = 0;
+             int j = 15;
+             if (p_data->disc_ble_res.service.uu.uuid16 == UUID_SERVCLASS_LE_HID)
+             {
+                BTIF_TRACE_DEBUG("%s: Found HOGP UUID",__FUNCTION__);
+                bt_property_t prop;
+                bt_bdaddr_t bd_addr;
+                char temp[256];
+                bt_status_t ret;
+
+                bta_gatt_convert_uuid16_to_uuid128(uuid.uu,p_data->disc_ble_res.service.uu.uuid16);
+
+                while(i < j )
+                {
+                    unsigned char c = uuid.uu[j];
+                    uuid.uu[j] = uuid.uu[i];
+                    uuid.uu[i] = c;
+                    i++;
+                    j--;
+                }
+
+                uuid_to_string_legacy(&uuid, temp);
+                LOG_INFO(LOG_TAG, "%s uuid:%s", __func__, temp);
+
+                bdcpy(bd_addr.address, p_data->disc_ble_res.bd_addr);
+                prop.type = BT_PROPERTY_UUIDS;
+                prop.val = uuid.uu;
+                prop.len = MAX_UUID_SIZE;
+
+                /* Also write this to the NVRAM */
+                ret = btif_storage_set_remote_device_property(&bd_addr, &prop);
+                ASSERTC(ret == BT_STATUS_SUCCESS, "storing remote services failed", ret);
+
+                /* Send the event to the BTIF */
+                HAL_CBACK(bt_hal_cbacks, remote_device_properties_cb,
+                                 BT_STATUS_SUCCESS, &bd_addr, 1, &prop);
+
+            }
+        break;
+#endif /* BLE_INCLUDED */
+
+#ifdef BLUETOOTH_RTK
+        case BTA_DM_DISC_NAME_EVT:
+        {
+            bt_property_t prop;
+            bt_bdaddr_t bd_addr;
+            bt_status_t ret;
+
+            BTIF_TRACE_DEBUG("%s: Found remote name, update it",__FUNCTION__);
+            bdcpy(bd_addr.address, p_data->disc_res.bd_addr);
+            if(p_data->disc_res.bd_name[0]) {
+                prop.type = BT_PROPERTY_BDNAME;
+                prop.len = strlen((char *)p_data->disc_res.bd_name);
+                prop.val = p_data->disc_res.bd_name;
+                ret = btif_storage_set_remote_device_property(&bd_addr, &prop);
+                ASSERTC(ret == BT_STATUS_SUCCESS, "storing remote name failed", ret);
+                HAL_CBACK(bt_hal_cbacks, remote_device_properties_cb,
+                                 BT_STATUS_SUCCESS, &bd_addr, 1, &prop);
+            }
+        }
+        break;
+#endif
+        default:
+        {
+            ASSERTC(0, "unhandled search services event", event);
+        }
+        break;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btif_dm_remote_service_record_evt
+**
+** Description      Executes search service record event in btif context
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btif_dm_remote_service_record_evt(UINT16 event, char *p_param)
+{
+    tBTA_DM_SEARCH *p_data = (tBTA_DM_SEARCH*)p_param;
+
+    BTIF_TRACE_EVENT("%s:  event = %d", __FUNCTION__, event);
+    switch (event)
+    {
+        case BTA_DM_DISC_RES_EVT:
+        {
+            bt_service_record_t rec;
+            bt_property_t prop;
+            bt_bdaddr_t bd_addr;
+
+            memset(&rec, 0, sizeof(bt_service_record_t));
+            bdcpy(bd_addr.address, p_data->disc_res.bd_addr);
+
+            BTIF_TRACE_DEBUG("%s:(result=0x%x, services 0x%x)", __FUNCTION__,
+                    p_data->disc_res.result, p_data->disc_res.services);
+            prop.type = BT_PROPERTY_SERVICE_RECORD;
+            prop.val = (void*)&rec;
+            prop.len = sizeof(rec);
+
+            /* disc_res.result is overloaded with SCN. Cannot check result */
+            p_data->disc_res.services &= ~BTA_USER_SERVICE_MASK;
+            /* TODO: Get the UUID as well */
+            rec.channel = p_data->disc_res.result - 3;
+            /* TODO: Need to get the service name using p_raw_data */
+            rec.name[0] = 0;
+
+            HAL_CBACK(bt_hal_cbacks, remote_device_properties_cb,
+                             BT_STATUS_SUCCESS, &bd_addr, 1, &prop);
+        }
+        break;
+
+        default:
+        {
+           ASSERTC(0, "unhandled remote service record event", event);
+        }
+        break;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btif_dm_upstreams_cback
+**
+** Description      Executes UPSTREAMS events in btif context
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btif_dm_upstreams_evt(UINT16 event, char* p_param)
+{
+    tBTA_DM_SEC *p_data = (tBTA_DM_SEC*)p_param;
+    tBTA_SERVICE_MASK service_mask;
+    uint32_t i;
+    bt_bdaddr_t bd_addr;
+
+    BTIF_TRACE_EVENT("btif_dm_upstreams_cback  ev: %s", dump_dm_event(event));
+
+    switch (event)
+    {
+        case BTA_DM_ENABLE_EVT:
+        {
+             BD_NAME bdname;
+             bt_status_t status;
+             bt_property_t prop;
+             prop.type = BT_PROPERTY_BDNAME;
+             prop.len = BD_NAME_LEN;
+             prop.val = (void*)bdname;
+
+             status = btif_storage_get_adapter_property(&prop);
+             if (status == BT_STATUS_SUCCESS)
+             {
+                 /* A name exists in the storage. Make this the device name */
+                 BTA_DmSetDeviceName((char*)prop.val);
+             }
+             else
+             {
+                 /* Storage does not have a name yet.
+                  * Use the default name and write it to the chip
+                  */
+                 BTA_DmSetDeviceName(btif_get_default_local_name());
+             }
+
+#if (defined(BLE_INCLUDED) && (BLE_INCLUDED == TRUE))
+             /* Enable local privacy */
+             BTA_DmBleConfigLocalPrivacy(BLE_LOCAL_PRIVACY_ENABLED);
+#endif
+
+             /* for each of the enabled services in the mask, trigger the profile
+              * enable */
+             service_mask = btif_get_enabled_services_mask();
+             for (i=0; i <= BTA_MAX_SERVICE_ID; i++)
+             {
+                 if (service_mask &
+                     (tBTA_SERVICE_MASK)(BTA_SERVICE_ID_TO_SERVICE_MASK(i)))
+                 {
+                     btif_in_execute_service_request(i, TRUE);
+                 }
+             }
+             /* clear control blocks */
+             memset(&pairing_cb, 0, sizeof(btif_dm_pairing_cb_t));
+             pairing_cb.bond_type = BOND_TYPE_PERSISTENT;
+
+             /* This function will also trigger the adapter_properties_cb
+             ** and bonded_devices_info_cb
+             */
+             btif_storage_load_bonded_devices();
+
+             btif_enable_bluetooth_evt(p_data->enable.status);
+        }
+        break;
+
+        case BTA_DM_DISABLE_EVT:
+            /* for each of the enabled services in the mask, trigger the profile
+             * disable */
+            service_mask = btif_get_enabled_services_mask();
+            for (i=0; i <= BTA_MAX_SERVICE_ID; i++)
+            {
+                if (service_mask &
+                    (tBTA_SERVICE_MASK)(BTA_SERVICE_ID_TO_SERVICE_MASK(i)))
+                {
+                    btif_in_execute_service_request(i, FALSE);
+                }
+            }
+            btif_disable_bluetooth_evt();
+            break;
+
+        case BTA_DM_PIN_REQ_EVT:
+            btif_dm_pin_req_evt(&p_data->pin_req);
+            break;
+
+        case BTA_DM_AUTH_CMPL_EVT:
+            btif_dm_auth_cmpl_evt(&p_data->auth_cmpl);
+            break;
+
+        case BTA_DM_BOND_CANCEL_CMPL_EVT:
+            if (pairing_cb.state == BT_BOND_STATE_BONDING)
+            {
+                bdcpy(bd_addr.address, pairing_cb.bd_addr);
+                btm_set_bond_type_dev(pairing_cb.bd_addr, BOND_TYPE_UNKNOWN);
+                bond_state_changed(p_data->bond_cancel_cmpl.result, &bd_addr, BT_BOND_STATE_NONE);
+            }
+            break;
+
+        case BTA_DM_SP_CFM_REQ_EVT:
+            btif_dm_ssp_cfm_req_evt(&p_data->cfm_req);
+            break;
+        case BTA_DM_SP_KEY_NOTIF_EVT:
+            btif_dm_ssp_key_notif_evt(&p_data->key_notif);
+            break;
+
+        case BTA_DM_DEV_UNPAIRED_EVT:
+            bdcpy(bd_addr.address, p_data->link_down.bd_addr);
+            btm_set_bond_type_dev(p_data->link_down.bd_addr, BOND_TYPE_UNKNOWN);
+
+            /*special handling for HID devices */
+            #if (defined(BTA_HH_INCLUDED) && (BTA_HH_INCLUDED == TRUE))
+            btif_hh_remove_device(bd_addr);
+            #endif
+            btif_storage_remove_bonded_device(&bd_addr);
+            bond_state_changed(BT_STATUS_SUCCESS, &bd_addr, BT_BOND_STATE_NONE);
+            break;
+
+        case BTA_DM_BUSY_LEVEL_EVT:
+        {
+
+            if (p_data->busy_level.level_flags & BTM_BL_INQUIRY_PAGING_MASK)
+            {
+                if (p_data->busy_level.level_flags == BTM_BL_INQUIRY_STARTED)
+                {
+                       HAL_CBACK(bt_hal_cbacks, discovery_state_changed_cb,
+                                                BT_DISCOVERY_STARTED);
+                       btif_dm_inquiry_in_progress = TRUE;
+                }
+                else if (p_data->busy_level.level_flags == BTM_BL_INQUIRY_CANCELLED)
+                {
+                       HAL_CBACK(bt_hal_cbacks, discovery_state_changed_cb,
+                                                BT_DISCOVERY_STOPPED);
+                       btif_dm_inquiry_in_progress = FALSE;
+                }
+                else if (p_data->busy_level.level_flags == BTM_BL_INQUIRY_COMPLETE)
+                {
+                       btif_dm_inquiry_in_progress = FALSE;
+                }
+            }
+        }break;
+
+        case BTA_DM_LINK_UP_EVT:
+            bdcpy(bd_addr.address, p_data->link_up.bd_addr);
+            BTIF_TRACE_DEBUG("BTA_DM_LINK_UP_EVT. Sending BT_ACL_STATE_CONNECTED");
+
+            btif_update_remote_version_property(&bd_addr);
+
+            HAL_CBACK(bt_hal_cbacks, acl_state_changed_cb, BT_STATUS_SUCCESS,
+                      &bd_addr, BT_ACL_STATE_CONNECTED);
+            break;
+
+        case BTA_DM_LINK_DOWN_EVT:
+            bdcpy(bd_addr.address, p_data->link_down.bd_addr);
+            btm_set_bond_type_dev(p_data->link_down.bd_addr, BOND_TYPE_UNKNOWN);
+            BTIF_TRACE_DEBUG("BTA_DM_LINK_DOWN_EVT. Sending BT_ACL_STATE_DISCONNECTED");
+            HAL_CBACK(bt_hal_cbacks, acl_state_changed_cb, BT_STATUS_SUCCESS,
+                      &bd_addr, BT_ACL_STATE_DISCONNECTED);
+            break;
+
+        case BTA_DM_HW_ERROR_EVT:
+            BTIF_TRACE_ERROR("Received H/W Error. ");
+            /* Flush storage data */
+            btif_config_flush();
+            usleep(100000); /* 100milliseconds */
+            /* Killing the process to force a restart as part of fault tolerance */
+            kill(getpid(), SIGKILL);
+            break;
+
+#if (defined(BLE_INCLUDED) && (BLE_INCLUDED == TRUE))
+        case BTA_DM_BLE_KEY_EVT:
+            BTIF_TRACE_DEBUG("BTA_DM_BLE_KEY_EVT key_type=0x%02x ", p_data->ble_key.key_type);
+
+            /* If this pairing is by-product of local initiated GATT client Read or Write,
+            BTA would not have sent BTA_DM_BLE_SEC_REQ_EVT event and Bond state would not
+            have setup properly. Setup pairing_cb and notify App about Bonding state now*/
+            if (pairing_cb.state != BT_BOND_STATE_BONDING)
+            {
+                BTIF_TRACE_DEBUG("Bond state not sent to App so far.Notify the app now");
+                bond_state_changed(BT_STATUS_SUCCESS, (bt_bdaddr_t*)p_data->ble_key.bd_addr,
+                                   BT_BOND_STATE_BONDING);
+            }
+            else if (memcmp (pairing_cb.bd_addr, p_data->ble_key.bd_addr, BD_ADDR_LEN)!=0)
+            {
+                BTIF_TRACE_ERROR("BD mismatch discard BLE key_type=%d ",p_data->ble_key.key_type);
+                break;
+            }
+
+            switch (p_data->ble_key.key_type)
+            {
+                case BTA_LE_KEY_PENC:
+                    BTIF_TRACE_DEBUG("Rcv BTA_LE_KEY_PENC");
+                    pairing_cb.ble.is_penc_key_rcvd = TRUE;
+                    pairing_cb.ble.penc_key = p_data->ble_key.p_key_value->penc_key;
+                    break;
+
+                case BTA_LE_KEY_PID:
+                    BTIF_TRACE_DEBUG("Rcv BTA_LE_KEY_PID");
+                    pairing_cb.ble.is_pid_key_rcvd = TRUE;
+                    pairing_cb.ble.pid_key = p_data->ble_key.p_key_value->pid_key;
+                    break;
+
+                case BTA_LE_KEY_PCSRK:
+                    BTIF_TRACE_DEBUG("Rcv BTA_LE_KEY_PCSRK");
+                    pairing_cb.ble.is_pcsrk_key_rcvd = TRUE;
+                    pairing_cb.ble.pcsrk_key = p_data->ble_key.p_key_value->pcsrk_key;
+                    break;
+
+                case BTA_LE_KEY_LENC:
+                    BTIF_TRACE_DEBUG("Rcv BTA_LE_KEY_LENC");
+                    pairing_cb.ble.is_lenc_key_rcvd = TRUE;
+                    pairing_cb.ble.lenc_key = p_data->ble_key.p_key_value->lenc_key;
+                    break;
+
+                case BTA_LE_KEY_LCSRK:
+                    BTIF_TRACE_DEBUG("Rcv BTA_LE_KEY_LCSRK");
+                    pairing_cb.ble.is_lcsrk_key_rcvd = TRUE;
+                    pairing_cb.ble.lcsrk_key = p_data->ble_key.p_key_value->lcsrk_key;
+                    break;
+
+                case BTA_LE_KEY_LID:
+                    BTIF_TRACE_DEBUG("Rcv BTA_LE_KEY_LID");
+                    pairing_cb.ble.is_lidk_key_rcvd =  TRUE;
+                    break;
+
+                default:
+                    BTIF_TRACE_ERROR("unknown BLE key type (0x%02x)", p_data->ble_key.key_type);
+                    break;
+            }
+            break;
+        case BTA_DM_BLE_SEC_REQ_EVT:
+            BTIF_TRACE_DEBUG("BTA_DM_BLE_SEC_REQ_EVT. ");
+            btif_dm_ble_sec_req_evt(&p_data->ble_req);
+            break;
+        case BTA_DM_BLE_PASSKEY_NOTIF_EVT:
+            BTIF_TRACE_DEBUG("BTA_DM_BLE_PASSKEY_NOTIF_EVT. ");
+            btif_dm_ble_key_notif_evt(&p_data->key_notif);
+            break;
+        case BTA_DM_BLE_PASSKEY_REQ_EVT:
+            BTIF_TRACE_DEBUG("BTA_DM_BLE_PASSKEY_REQ_EVT. ");
+            btif_dm_ble_passkey_req_evt(&p_data->pin_req);
+            break;
+        case BTA_DM_BLE_NC_REQ_EVT:
+            BTIF_TRACE_DEBUG("BTA_DM_BLE_PASSKEY_REQ_EVT. ");
+            btif_dm_ble_key_nc_req_evt(&p_data->key_notif);
+            break;
+        case BTA_DM_BLE_OOB_REQ_EVT:
+            BTIF_TRACE_DEBUG("BTA_DM_BLE_OOB_REQ_EVT. ");
+            btif_dm_ble_oob_req_evt(&p_data->rmt_oob);
+            break;
+        case BTA_DM_BLE_LOCAL_IR_EVT:
+            BTIF_TRACE_DEBUG("BTA_DM_BLE_LOCAL_IR_EVT. ");
+            ble_local_key_cb.is_id_keys_rcvd = TRUE;
+            memcpy(&ble_local_key_cb.id_keys.irk[0],
+                   &p_data->ble_id_keys.irk[0], sizeof(BT_OCTET16));
+            memcpy(&ble_local_key_cb.id_keys.ir[0],
+                   &p_data->ble_id_keys.ir[0], sizeof(BT_OCTET16));
+            memcpy(&ble_local_key_cb.id_keys.dhk[0],
+                   &p_data->ble_id_keys.dhk[0], sizeof(BT_OCTET16));
+            btif_storage_add_ble_local_key( (char *)&ble_local_key_cb.id_keys.irk[0],
+                                            BTIF_DM_LE_LOCAL_KEY_IRK,
+                                            BT_OCTET16_LEN);
+            btif_storage_add_ble_local_key( (char *)&ble_local_key_cb.id_keys.ir[0],
+                                            BTIF_DM_LE_LOCAL_KEY_IR,
+                                            BT_OCTET16_LEN);
+            btif_storage_add_ble_local_key( (char *)&ble_local_key_cb.id_keys.dhk[0],
+                                            BTIF_DM_LE_LOCAL_KEY_DHK,
+                                            BT_OCTET16_LEN);
+            break;
+        case BTA_DM_BLE_LOCAL_ER_EVT:
+            BTIF_TRACE_DEBUG("BTA_DM_BLE_LOCAL_ER_EVT. ");
+            ble_local_key_cb.is_er_rcvd = TRUE;
+            memcpy(&ble_local_key_cb.er[0], &p_data->ble_er[0], sizeof(BT_OCTET16));
+            btif_storage_add_ble_local_key( (char *)&ble_local_key_cb.er[0],
+                                            BTIF_DM_LE_LOCAL_KEY_ER,
+                                            BT_OCTET16_LEN);
+            break;
+
+        case BTA_DM_BLE_AUTH_CMPL_EVT:
+            BTIF_TRACE_DEBUG("BTA_DM_BLE_AUTH_CMPL_EVT. ");
+            btif_dm_ble_auth_cmpl_evt(&p_data->auth_cmpl);
+            break;
+
+        case BTA_DM_LE_FEATURES_READ:
+        {
+            tBTM_BLE_VSC_CB cmn_vsc_cb;
+            bt_local_le_features_t local_le_features;
+            char buf[512];
+            bt_property_t prop;
+            prop.type = BT_PROPERTY_LOCAL_LE_FEATURES;
+            prop.val = (void*)buf;
+            prop.len = sizeof(buf);
+
+           /* LE features are not stored in storage. Should be retrived from stack */
+            BTM_BleGetVendorCapabilities(&cmn_vsc_cb);
+            local_le_features.local_privacy_enabled = BTM_BleLocalPrivacyEnabled();
+
+            prop.len = sizeof (bt_local_le_features_t);
+            if (cmn_vsc_cb.filter_support == 1)
+                local_le_features.max_adv_filter_supported = cmn_vsc_cb.max_filter;
+             else
+                local_le_features.max_adv_filter_supported = 0;
+            local_le_features.max_adv_instance = cmn_vsc_cb.adv_inst_max;
+            local_le_features.max_irk_list_size = cmn_vsc_cb.max_irk_list_sz;
+            local_le_features.rpa_offload_supported = cmn_vsc_cb.rpa_offloading;
+            local_le_features.activity_energy_info_supported = cmn_vsc_cb.energy_support;
+            local_le_features.scan_result_storage_size = cmn_vsc_cb.tot_scan_results_strg;
+            local_le_features.version_supported = cmn_vsc_cb.version_supported;
+            local_le_features.total_trackable_advertisers =
+                        cmn_vsc_cb.total_trackable_advertisers;
+
+            local_le_features.extended_scan_support = cmn_vsc_cb.extended_scan_support > 0;
+            local_le_features.debug_logging_supported = cmn_vsc_cb.debug_logging_supported > 0;
+
+            memcpy(prop.val, &local_le_features, prop.len);
+            HAL_CBACK(bt_hal_cbacks, adapter_properties_cb, BT_STATUS_SUCCESS, 1, &prop);
+            break;
+         }
+
+        case BTA_DM_ENER_INFO_READ:
+        {
+            btif_activity_energy_info_cb_t *p_ener_data = (btif_activity_energy_info_cb_t*) p_param;
+            bt_activity_energy_info energy_info;
+            energy_info.status = p_ener_data->status;
+            energy_info.ctrl_state = p_ener_data->ctrl_state;
+            energy_info.rx_time = p_ener_data->rx_time;
+            energy_info.tx_time = p_ener_data->tx_time;
+            energy_info.idle_time = p_ener_data->idle_time;
+            energy_info.energy_used = p_ener_data->energy_used;
+
+            bt_uid_traffic_t* data = uid_set_read_and_clear(uid_set);
+            HAL_CBACK(bt_hal_cbacks, energy_info_cb, &energy_info, data);
+            osi_free(data);
+            break;
+        }
+#endif
+
+        case BTA_DM_AUTHORIZE_EVT:
+        case BTA_DM_SIG_STRENGTH_EVT:
+        case BTA_DM_SP_RMT_OOB_EVT:
+        case BTA_DM_SP_KEYPRESS_EVT:
+        case BTA_DM_ROLE_CHG_EVT:
+
+        default:
+            BTIF_TRACE_WARNING( "btif_dm_cback : unhandled event (%d)", event );
+            break;
+    }
+
+    btif_dm_data_free(event, p_data);
+}
+
+/*******************************************************************************
+**
+** Function         btif_dm_generic_evt
+**
+** Description      Executes non-BTA upstream events in BTIF context
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btif_dm_generic_evt(UINT16 event, char* p_param)
+{
+    BTIF_TRACE_EVENT("%s: event=%d", __FUNCTION__, event);
+    switch(event)
+    {
+        case BTIF_DM_CB_DISCOVERY_STARTED:
+        {
+            HAL_CBACK(bt_hal_cbacks, discovery_state_changed_cb, BT_DISCOVERY_STARTED);
+        }
+        break;
+
+        case BTIF_DM_CB_CREATE_BOND:
+        {
+            pairing_cb.timeout_retries = NUM_TIMEOUT_RETRIES;
+            btif_dm_create_bond_cb_t *create_bond_cb = (btif_dm_create_bond_cb_t*)p_param;
+            btif_dm_cb_create_bond(&create_bond_cb->bdaddr, create_bond_cb->transport);
+        }
+        break;
+
+        case BTIF_DM_CB_REMOVE_BOND:
+        {
+            btif_dm_cb_remove_bond((bt_bdaddr_t *)p_param);
+        }
+        break;
+
+        case BTIF_DM_CB_HID_REMOTE_NAME:
+        {
+            btif_dm_cb_hid_remote_name((tBTM_REMOTE_DEV_NAME *)p_param);
+        }
+        break;
+
+        case BTIF_DM_CB_BOND_STATE_BONDING:
+            {
+                bond_state_changed(BT_STATUS_SUCCESS, (bt_bdaddr_t *)p_param, BT_BOND_STATE_BONDING);
+            }
+            break;
+        case BTIF_DM_CB_LE_TX_TEST:
+        case BTIF_DM_CB_LE_RX_TEST:
+            {
+                uint8_t status;
+                STREAM_TO_UINT8(status, p_param);
+                HAL_CBACK(bt_hal_cbacks, le_test_mode_cb,
+                      (status == 0) ? BT_STATUS_SUCCESS : BT_STATUS_FAIL, 0);
+            }
+            break;
+        case BTIF_DM_CB_LE_TEST_END:
+            {
+                uint8_t status;
+                uint16_t count = 0;
+                STREAM_TO_UINT8(status, p_param);
+                if (status == 0)
+                    STREAM_TO_UINT16(count, p_param);
+                HAL_CBACK(bt_hal_cbacks, le_test_mode_cb,
+                      (status == 0) ? BT_STATUS_SUCCESS : BT_STATUS_FAIL, count);
+            }
+            break;
+        default:
+        {
+            BTIF_TRACE_WARNING("%s : Unknown event 0x%x", __FUNCTION__, event);
+        }
+        break;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bte_dm_evt
+**
+** Description      Switches context from BTE to BTIF for all DM events
+**
+** Returns          void
+**
+*******************************************************************************/
+
+void bte_dm_evt(tBTA_DM_SEC_EVT event, tBTA_DM_SEC *p_data)
+{
+    /* switch context to btif task context (copy full union size for convenience) */
+    bt_status_t status = btif_transfer_context(btif_dm_upstreams_evt, (uint16_t)event,
+                                (void*)p_data, sizeof(tBTA_DM_SEC), btif_dm_data_copy);
+
+    /* catch any failed context transfers */
+    ASSERTC(status == BT_STATUS_SUCCESS, "context transfer failed", status);
+}
+
+/*******************************************************************************
+**
+** Function         bte_search_devices_evt
+**
+** Description      Switches context from BTE to BTIF for DM search events
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bte_search_devices_evt(tBTA_DM_SEARCH_EVT event, tBTA_DM_SEARCH *p_data)
+{
+    UINT16 param_len = 0;
+
+    if (p_data)
+        param_len += sizeof(tBTA_DM_SEARCH);
+    /* Allocate buffer to hold the pointers (deep copy). The pointers will point to the end of the tBTA_DM_SEARCH */
+    switch (event)
+    {
+        case BTA_DM_INQ_RES_EVT:
+        {
+            if (p_data->inq_res.p_eir)
+                param_len += HCI_EXT_INQ_RESPONSE_LEN;
+        }
+        break;
+
+        case BTA_DM_DISC_RES_EVT:
+        {
+            if (p_data->disc_res.raw_data_size && p_data->disc_res.p_raw_data)
+                param_len += p_data->disc_res.raw_data_size;
+        }
+        break;
+    }
+    BTIF_TRACE_DEBUG("%s event=%s param_len=%d", __FUNCTION__, dump_dm_search_event(event), param_len);
+
+    /* if remote name is available in EIR, set teh flag so that stack doesnt trigger RNR */
+    if (event == BTA_DM_INQ_RES_EVT)
+        p_data->inq_res.remt_name_not_required = check_eir_remote_name(p_data, NULL, NULL);
+
+    btif_transfer_context (btif_dm_search_devices_evt , (UINT16) event, (void *)p_data, param_len,
+        (param_len > sizeof(tBTA_DM_SEARCH)) ? search_devices_copy_cb : NULL);
+}
+
+/*******************************************************************************
+**
+** Function         bte_dm_search_services_evt
+**
+** Description      Switches context from BTE to BTIF for DM search services
+**                  event
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bte_dm_search_services_evt(tBTA_DM_SEARCH_EVT event, tBTA_DM_SEARCH *p_data)
+{
+    UINT16 param_len = 0;
+   if (p_data)
+       param_len += sizeof(tBTA_DM_SEARCH);
+   switch (event)
+   {
+         case BTA_DM_DISC_RES_EVT:
+         {
+             if ((p_data->disc_res.result == BTA_SUCCESS) && (p_data->disc_res.num_uuids > 0)) {
+                  param_len += (p_data->disc_res.num_uuids * MAX_UUID_SIZE);
+             }
+#ifdef BLUETOOTH_RTK
+             if ((p_data->disc_res.result == BTA_SUCCESS) && (p_data->disc_res.raw_data_size > 0 && p_data->disc_res.p_raw_data != NULL)) {
+                 param_len += p_data->disc_res.raw_data_size;
+             }
+#endif
+         } break;
+   }
+   /* TODO: The only other member that needs a deep copy is the p_raw_data. But not sure
+    * if raw_data is needed. */
+   btif_transfer_context(btif_dm_search_services_evt, event, (char*)p_data, param_len,
+         (param_len > sizeof(tBTA_DM_SEARCH)) ? search_services_copy_cb : NULL);
+}
+
+/*******************************************************************************
+**
+** Function         bte_dm_remote_service_record_evt
+**
+** Description      Switches context from BTE to BTIF for DM search service
+**                  record event
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bte_dm_remote_service_record_evt(tBTA_DM_SEARCH_EVT event, tBTA_DM_SEARCH *p_data)
+{
+   /* TODO: The only member that needs a deep copy is the p_raw_data. But not sure yet if this is needed. */
+   btif_transfer_context(btif_dm_remote_service_record_evt, event, (char*)p_data, sizeof(tBTA_DM_SEARCH), NULL);
+}
+
+#if (defined(BLE_INCLUDED) && (BLE_INCLUDED == TRUE))
+/*******************************************************************************
+**
+** Function         bta_energy_info_cb
+**
+** Description      Switches context from BTE to BTIF for DM energy info event
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_energy_info_cb(tBTA_DM_BLE_TX_TIME_MS tx_time, tBTA_DM_BLE_RX_TIME_MS rx_time,
+                                    tBTA_DM_BLE_IDLE_TIME_MS idle_time,
+                                    tBTA_DM_BLE_ENERGY_USED energy_used,
+                                    tBTA_DM_CONTRL_STATE ctrl_state, tBTA_STATUS status)
+{
+    BTIF_TRACE_DEBUG("energy_info_cb-Status:%d,state=%d,tx_t=%ld, rx_t=%ld, idle_time=%ld,used=%ld",
+        status, ctrl_state, tx_time, rx_time, idle_time, energy_used);
+
+    btif_activity_energy_info_cb_t btif_cb;
+    btif_cb.status = status;
+    btif_cb.ctrl_state = ctrl_state;
+    btif_cb.tx_time = (uint64_t) tx_time;
+    btif_cb.rx_time = (uint64_t) rx_time;
+    btif_cb.idle_time =(uint64_t) idle_time;
+    btif_cb.energy_used =(uint64_t) energy_used;
+    btif_transfer_context(btif_dm_upstreams_evt, BTA_DM_ENER_INFO_READ,
+                          (char*) &btif_cb, sizeof(btif_activity_energy_info_cb_t), NULL);
+}
+#endif
+
+/*******************************************************************************
+**
+** Function         bte_scan_filt_param_cfg_evt
+**
+** Description      Scan filter param config event
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bte_scan_filt_param_cfg_evt(UINT8 action_type,
+                                        tBTA_DM_BLE_PF_AVBL_SPACE avbl_space,
+                                        tBTA_DM_BLE_REF_VALUE ref_value, tBTA_STATUS status)
+{
+    /* This event occurs on calling BTA_DmBleCfgFilterCondition internally,
+    ** and that is why there is no HAL callback
+    */
+    if(BTA_SUCCESS != status)
+    {
+        BTIF_TRACE_ERROR("%s, %d", __FUNCTION__, status);
+    }
+    else
+    {
+        BTIF_TRACE_DEBUG("%s", __FUNCTION__);
+    }
+}
+
+/*****************************************************************************
+**
+**   btif api functions (no context switch)
+**
+*****************************************************************************/
+
+/*******************************************************************************
+**
+** Function         btif_dm_start_discovery
+**
+** Description      Start device discovery/inquiry
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+bt_status_t btif_dm_start_discovery(void)
+{
+    tBTA_DM_INQ inq_params;
+    tBTA_SERVICE_MASK services = 0;
+    tBTA_DM_BLE_PF_FILT_PARAMS adv_filt_param;
+
+    BTIF_TRACE_EVENT("%s", __FUNCTION__);
+
+#ifdef BLUETOOTH_RTK
+    if (pairing_cb.state != BT_BOND_STATE_NONE)
+    {
+        BTIF_TRACE_EVENT("%s, bonding is on the way, inquiry return", __FUNCTION__);
+        return BT_STATUS_BUSY;
+    }
+    BTIF_TRACE_EVENT("%s, bonding is not on the way, inquiry continue", __FUNCTION__);
+#endif
+
+
+#if (defined(BLE_INCLUDED) && (BLE_INCLUDED == TRUE))
+    memset(&adv_filt_param, 0, sizeof(tBTA_DM_BLE_PF_FILT_PARAMS));
+    /* Cleanup anything remaining on index 0 */
+    BTA_DmBleScanFilterSetup(BTA_DM_BLE_SCAN_COND_DELETE, 0, &adv_filt_param, NULL,
+                             bte_scan_filt_param_cfg_evt, 0);
+
+    /* Add an allow-all filter on index 0*/
+    adv_filt_param.dely_mode = IMMEDIATE_DELY_MODE;
+    adv_filt_param.feat_seln = ALLOW_ALL_FILTER;
+    adv_filt_param.filt_logic_type = BTA_DM_BLE_PF_FILT_LOGIC_OR;
+    adv_filt_param.list_logic_type = BTA_DM_BLE_PF_LIST_LOGIC_OR;
+    adv_filt_param.rssi_low_thres = LOWEST_RSSI_VALUE;
+    adv_filt_param.rssi_high_thres = LOWEST_RSSI_VALUE;
+    BTA_DmBleScanFilterSetup(BTA_DM_BLE_SCAN_COND_ADD, 0, &adv_filt_param, NULL,
+                             bte_scan_filt_param_cfg_evt, 0);
+
+    /* TODO: Do we need to handle multiple inquiries at the same time? */
+
+    /* Set inquiry params and call API */
+    inq_params.mode = BTA_DM_GENERAL_INQUIRY|BTA_BLE_GENERAL_INQUIRY;
+#if (defined(BTA_HOST_INTERLEAVE_SEARCH) && BTA_HOST_INTERLEAVE_SEARCH == TRUE)
+    inq_params.intl_duration[0]= BTIF_DM_INTERLEAVE_DURATION_BR_ONE;
+    inq_params.intl_duration[1]= BTIF_DM_INTERLEAVE_DURATION_LE_ONE;
+    inq_params.intl_duration[2]= BTIF_DM_INTERLEAVE_DURATION_BR_TWO;
+    inq_params.intl_duration[3]= BTIF_DM_INTERLEAVE_DURATION_LE_TWO;
+#endif
+#else
+    inq_params.mode = BTA_DM_GENERAL_INQUIRY;
+#endif
+    inq_params.duration = BTIF_DM_DEFAULT_INQ_MAX_DURATION;
+
+    inq_params.max_resps = BTIF_DM_DEFAULT_INQ_MAX_RESULTS;
+    inq_params.report_dup = TRUE;
+
+    inq_params.filter_type = BTA_DM_INQ_CLR;
+    /* TODO: Filter device by BDA needs to be implemented here */
+
+    /* Will be enabled to TRUE once inquiry busy level has been received */
+    btif_dm_inquiry_in_progress = FALSE;
+    /* find nearby devices */
+    BTA_DmSearch(&inq_params, services, bte_search_devices_evt);
+
+    return BT_STATUS_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         btif_dm_cancel_discovery
+**
+** Description      Cancels search
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+bt_status_t btif_dm_cancel_discovery(void)
+{
+    BTIF_TRACE_EVENT("%s", __FUNCTION__);
+    BTA_DmSearchCancel();
+    return BT_STATUS_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         btif_dm_create_bond
+**
+** Description      Initiate bonding with the specified device
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+bt_status_t btif_dm_create_bond(const bt_bdaddr_t *bd_addr, int transport)
+{
+    btif_dm_create_bond_cb_t create_bond_cb;
+    create_bond_cb.transport = transport;
+    bdcpy(create_bond_cb.bdaddr.address, bd_addr->address);
+
+    bdstr_t bdstr;
+    BTIF_TRACE_EVENT("%s: bd_addr=%s, transport=%d", __FUNCTION__, bdaddr_to_string(bd_addr, bdstr, sizeof(bdstr)), transport);
+    if (pairing_cb.state != BT_BOND_STATE_NONE)
+        return BT_STATUS_BUSY;
+
+    btif_stats_add_bond_event(bd_addr, BTIF_DM_FUNC_CREATE_BOND, pairing_cb.state);
+
+    btif_transfer_context(btif_dm_generic_evt, BTIF_DM_CB_CREATE_BOND,
+                          (char *)&create_bond_cb, sizeof(btif_dm_create_bond_cb_t), NULL);
+
+    return BT_STATUS_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         btif_dm_create_bond_out_of_band
+**
+** Description      Initiate bonding with the specified device using out of band data
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+bt_status_t btif_dm_create_bond_out_of_band(const bt_bdaddr_t *bd_addr, int transport, const bt_out_of_band_data_t *oob_data)
+{
+    bdcpy(oob_cb.bdaddr, bd_addr->address);
+    memcpy(&oob_cb.oob_data, oob_data, sizeof(bt_out_of_band_data_t));
+
+    bdstr_t bdstr;
+    BTIF_TRACE_EVENT("%s: bd_addr=%s, transport=%d", __FUNCTION__, bdaddr_to_string(bd_addr, bdstr, sizeof(bdstr)), transport);
+    return btif_dm_create_bond(bd_addr, transport);
+}
+
+/*******************************************************************************
+**
+** Function         btif_dm_cancel_bond
+**
+** Description      Initiate bonding with the specified device
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+
+bt_status_t btif_dm_cancel_bond(const bt_bdaddr_t *bd_addr)
+{
+    bdstr_t bdstr;
+
+    BTIF_TRACE_EVENT("%s: bd_addr=%s", __FUNCTION__, bdaddr_to_string(bd_addr, bdstr, sizeof(bdstr)));
+
+    btif_stats_add_bond_event(bd_addr, BTIF_DM_FUNC_CANCEL_BOND, pairing_cb.state);
+
+    /* TODO:
+    **  1. Restore scan modes
+    **  2. special handling for HID devices
+    */
+    if (pairing_cb.state == BT_BOND_STATE_BONDING)
+    {
+
+#if (defined(BLE_INCLUDED) && (BLE_INCLUDED == TRUE))
+
+        if (pairing_cb.is_ssp)
+        {
+            if (pairing_cb.is_le_only)
+            {
+                BTA_DmBleSecurityGrant((UINT8 *)bd_addr->address,BTA_DM_SEC_PAIR_NOT_SPT);
+            }
+            else
+            {
+                BTA_DmConfirm( (UINT8 *)bd_addr->address, FALSE);
+                BTA_DmBondCancel ((UINT8 *)bd_addr->address);
+                btif_storage_remove_bonded_device((bt_bdaddr_t *)bd_addr);
+            }
+        }
+        else
+        {
+            if (pairing_cb.is_le_only)
+            {
+                BTA_DmBondCancel ((UINT8 *)bd_addr->address);
+            }
+            else
+            {
+                BTA_DmPinReply( (UINT8 *)bd_addr->address, FALSE, 0, NULL);
+            }
+        /* Cancel bonding, in case it is in ACL connection setup state */
+        BTA_DmBondCancel ((UINT8 *)bd_addr->address);
+        }
+
+#ifdef BLUETOOTH_RTK
+        btif_dm_remove_bond(bd_addr);
+#endif
+
+#else
+        if (pairing_cb.is_ssp)
+        {
+            BTA_DmConfirm( (UINT8 *)bd_addr->address, FALSE);
+        }
+        else
+        {
+            BTA_DmPinReply( (UINT8 *)bd_addr->address, FALSE, 0, NULL);
+        }
+        /* Cancel bonding, in case it is in ACL connection setup state */
+        BTA_DmBondCancel ((UINT8 *)bd_addr->address);
+        btif_storage_remove_bonded_device((bt_bdaddr_t *)bd_addr);
+#endif
+    }
+
+    return BT_STATUS_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         btif_dm_hh_open_failed
+**
+** Description      informs the upper layers if the HH have failed during bonding
+**
+** Returns          none
+**
+*******************************************************************************/
+
+void btif_dm_hh_open_failed(bt_bdaddr_t *bdaddr)
+{
+    if (pairing_cb.state == BT_BOND_STATE_BONDING &&
+            bdcmp(bdaddr->address, pairing_cb.bd_addr) == 0)
+    {
+        bond_state_changed(BT_STATUS_FAIL, bdaddr, BT_BOND_STATE_NONE);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btif_dm_remove_bond
+**
+** Description      Removes bonding with the specified device
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+
+bt_status_t btif_dm_remove_bond(const bt_bdaddr_t *bd_addr)
+{
+    bdstr_t bdstr;
+
+    BTIF_TRACE_EVENT("%s: bd_addr=%s", __FUNCTION__, bdaddr_to_string(bd_addr, bdstr, sizeof(bdstr)));
+
+    btif_stats_add_bond_event(bd_addr, BTIF_DM_FUNC_REMOVE_BOND, pairing_cb.state);
+
+    btif_transfer_context(btif_dm_generic_evt, BTIF_DM_CB_REMOVE_BOND,
+                          (char *)bd_addr, sizeof(bt_bdaddr_t), NULL);
+
+    return BT_STATUS_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         btif_dm_pin_reply
+**
+** Description      BT legacy pairing - PIN code reply
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+
+bt_status_t btif_dm_pin_reply( const bt_bdaddr_t *bd_addr, uint8_t accept,
+                               uint8_t pin_len, bt_pin_code_t *pin_code)
+{
+    BTIF_TRACE_EVENT("%s: accept=%d", __FUNCTION__, accept);
+    if (pin_code == NULL || pin_len > PIN_CODE_LEN)
+        return BT_STATUS_FAIL;
+#if (defined(BLE_INCLUDED) && (BLE_INCLUDED == TRUE))
+
+    if (pairing_cb.is_le_only)
+    {
+        int i;
+        UINT32 passkey = 0;
+        int multi[] = {100000, 10000, 1000, 100, 10,1};
+        BD_ADDR remote_bd_addr;
+        bdcpy(remote_bd_addr, bd_addr->address);
+        for (i = 0; i < 6; i++)
+        {
+            passkey += (multi[i] * (pin_code->pin[i] - '0'));
+        }
+        BTIF_TRACE_DEBUG("btif_dm_pin_reply: passkey: %d", passkey);
+        BTA_DmBlePasskeyReply(remote_bd_addr, accept, passkey);
+
+    }
+    else
+    {
+        BTA_DmPinReply( (UINT8 *)bd_addr->address, accept, pin_len, pin_code->pin);
+        if (accept)
+            pairing_cb.pin_code_len = pin_len;
+    }
+#else
+    BTA_DmPinReply( (UINT8 *)bd_addr->address, accept, pin_len, pin_code->pin);
+
+    if (accept)
+        pairing_cb.pin_code_len = pin_len;
+#endif
+    return BT_STATUS_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         btif_dm_ssp_reply
+**
+** Description      BT SSP Reply - Just Works, Numeric Comparison & Passkey Entry
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+bt_status_t btif_dm_ssp_reply(const bt_bdaddr_t *bd_addr,
+                                 bt_ssp_variant_t variant, uint8_t accept,
+                                 uint32_t passkey)
+{
+    UNUSED(passkey);
+
+    if (variant == BT_SSP_VARIANT_PASSKEY_ENTRY)
+    {
+        /* This is not implemented in the stack.
+         * For devices with display, this is not needed
+        */
+        BTIF_TRACE_WARNING("%s: Not implemented", __FUNCTION__);
+        return BT_STATUS_FAIL;
+    }
+    /* BT_SSP_VARIANT_CONSENT & BT_SSP_VARIANT_PASSKEY_CONFIRMATION supported */
+    BTIF_TRACE_EVENT("%s: accept=%d", __FUNCTION__, accept);
+#if (defined(BLE_INCLUDED) && (BLE_INCLUDED == TRUE))
+    if (pairing_cb.is_le_only)
+    {
+        if(pairing_cb.is_le_nc)
+        {
+            BTA_DmBleConfirmReply((UINT8 *)bd_addr->address,accept);
+        } else {
+            if (accept)
+                BTA_DmBleSecurityGrant((UINT8 *)bd_addr->address,BTA_DM_SEC_GRANTED);
+            else
+                BTA_DmBleSecurityGrant((UINT8 *)bd_addr->address,BTA_DM_SEC_PAIR_NOT_SPT);
+        }
+    } else {
+        BTA_DmConfirm( (UINT8 *)bd_addr->address, accept);
+    }
+#else
+    BTA_DmConfirm( (UINT8 *)bd_addr->address, accept);
+#endif
+    return BT_STATUS_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         btif_dm_get_adapter_property
+**
+** Description     Queries the BTA for the adapter property
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+bt_status_t btif_dm_get_adapter_property(bt_property_t *prop)
+{
+    BTIF_TRACE_EVENT("%s: type=0x%x", __FUNCTION__, prop->type);
+    switch (prop->type)
+    {
+        case BT_PROPERTY_BDNAME:
+        {
+            bt_bdname_t *bd_name = (bt_bdname_t*)prop->val;
+            strncpy((char *)bd_name->name, (char *)btif_get_default_local_name(),
+                   sizeof(bd_name->name) - 1);
+            bd_name->name[sizeof(bd_name->name) - 1] = 0;
+            prop->len = strlen((char *)bd_name->name);
+        }
+        break;
+
+        case BT_PROPERTY_ADAPTER_SCAN_MODE:
+        {
+            /* if the storage does not have it. Most likely app never set it. Default is NONE */
+            bt_scan_mode_t *mode = (bt_scan_mode_t*)prop->val;
+            *mode = BT_SCAN_MODE_NONE;
+            prop->len = sizeof(bt_scan_mode_t);
+        }
+        break;
+
+        case BT_PROPERTY_ADAPTER_DISCOVERY_TIMEOUT:
+        {
+            uint32_t *tmt = (uint32_t*)prop->val;
+            *tmt = 120; /* default to 120s, if not found in NV */
+            prop->len = sizeof(uint32_t);
+        }
+        break;
+
+        default:
+            prop->len = 0;
+            return BT_STATUS_FAIL;
+    }
+    return BT_STATUS_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         btif_dm_get_remote_services
+**
+** Description      Start SDP to get remote services
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+bt_status_t btif_dm_get_remote_services(bt_bdaddr_t *remote_addr)
+{
+    bdstr_t bdstr;
+
+    BTIF_TRACE_EVENT("%s: remote_addr=%s", __FUNCTION__, bdaddr_to_string(remote_addr, bdstr, sizeof(bdstr)));
+
+    BTA_DmDiscover(remote_addr->address, BTA_ALL_SERVICE_MASK,
+                   bte_dm_search_services_evt, TRUE);
+
+    return BT_STATUS_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         btif_dm_get_remote_services_transport
+**
+** Description      Start SDP to get remote services by transport
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+bt_status_t btif_dm_get_remote_services_by_transport(bt_bdaddr_t *remote_addr, const int transport)
+{
+    BTIF_TRACE_EVENT("%s", __func__);
+
+    /* Set the mask extension */
+    tBTA_SERVICE_MASK_EXT mask_ext;
+    mask_ext.num_uuid = 0;
+    mask_ext.p_uuid = NULL;
+    mask_ext.srvc_mask = BTA_ALL_SERVICE_MASK;
+
+    BTA_DmDiscoverByTransport(remote_addr->address, &mask_ext,
+                   bte_dm_search_services_evt, TRUE, transport);
+
+    return BT_STATUS_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         btif_dm_get_remote_service_record
+**
+** Description      Start SDP to get remote service record
+**
+**
+** Returns          bt_status_t
+*******************************************************************************/
+bt_status_t btif_dm_get_remote_service_record(bt_bdaddr_t *remote_addr,
+                                                    bt_uuid_t *uuid)
+{
+    tSDP_UUID sdp_uuid;
+    bdstr_t bdstr;
+
+    BTIF_TRACE_EVENT("%s: remote_addr=%s", __FUNCTION__, bdaddr_to_string(remote_addr, bdstr, sizeof(bdstr)));
+
+    sdp_uuid.len = MAX_UUID_SIZE;
+    memcpy(sdp_uuid.uu.uuid128, uuid->uu, MAX_UUID_SIZE);
+
+    BTA_DmDiscoverUUID(remote_addr->address, &sdp_uuid,
+                       bte_dm_remote_service_record_evt, TRUE);
+
+    return BT_STATUS_SUCCESS;
+}
+
+void btif_dm_execute_service_request(UINT16 event, char *p_param)
+{
+    BOOLEAN b_enable = FALSE;
+    bt_status_t status;
+    if (event == BTIF_DM_ENABLE_SERVICE)
+    {
+        b_enable = TRUE;
+    }
+    status = btif_in_execute_service_request(*((tBTA_SERVICE_ID*)p_param), b_enable);
+    if (status == BT_STATUS_SUCCESS)
+    {
+        bt_property_t property;
+        bt_uuid_t local_uuids[BT_MAX_NUM_UUIDS];
+
+        /* Now send the UUID_PROPERTY_CHANGED event to the upper layer */
+        BTIF_STORAGE_FILL_PROPERTY(&property, BT_PROPERTY_UUIDS,
+                                    sizeof(local_uuids), local_uuids);
+        btif_storage_get_adapter_property(&property);
+        HAL_CBACK(bt_hal_cbacks, adapter_properties_cb,
+                          BT_STATUS_SUCCESS, 1, &property);
+    }
+    return;
+}
+
+void btif_dm_proc_io_req(BD_ADDR bd_addr, tBTA_IO_CAP *p_io_cap, tBTA_OOB_DATA *p_oob_data,
+                      tBTA_AUTH_REQ *p_auth_req, BOOLEAN is_orig)
+{
+    UINT8   yes_no_bit = BTA_AUTH_SP_YES & *p_auth_req;
+    /* if local initiated:
+    **      1. set DD + MITM
+    ** if remote initiated:
+    **      1. Copy over the auth_req from peer's io_rsp
+    **      2. Set the MITM if peer has it set or if peer has DisplayYesNo (iPhone)
+    ** as a fallback set MITM+GB if peer had MITM set
+    */
+    UNUSED (bd_addr);
+    UNUSED (p_io_cap);
+    UNUSED (p_oob_data);
+
+    BTIF_TRACE_DEBUG("+%s: p_auth_req=%d", __FUNCTION__, *p_auth_req);
+    if(pairing_cb.is_local_initiated)
+    {
+        /* if initing/responding to a dedicated bonding, use dedicate bonding bit */
+        *p_auth_req = BTA_AUTH_DD_BOND | BTA_AUTH_SP_YES;
+    }
+    else if (!is_orig)
+    {
+        /* peer initiated paring. They probably know what they want.
+        ** Copy the mitm from peer device.
+        */
+        BTIF_TRACE_DEBUG("%s: setting p_auth_req to peer's: %d",
+                __FUNCTION__, pairing_cb.auth_req);
+        *p_auth_req = (pairing_cb.auth_req & BTA_AUTH_BONDS);
+
+        /* copy over the MITM bit as well. In addition if the peer has DisplayYesNo, force MITM */
+        if ((yes_no_bit) || (pairing_cb.io_cap & BTM_IO_CAP_IO) )
+            *p_auth_req |= BTA_AUTH_SP_YES;
+    }
+    else if (yes_no_bit)
+    {
+        /* set the general bonding bit for stored device */
+        *p_auth_req = BTA_AUTH_GEN_BOND | yes_no_bit;
+    }
+    BTIF_TRACE_DEBUG("-%s: p_auth_req=%d", __FUNCTION__, *p_auth_req);
+}
+
+void btif_dm_proc_io_rsp(BD_ADDR bd_addr, tBTA_IO_CAP io_cap,
+                      tBTA_OOB_DATA oob_data, tBTA_AUTH_REQ auth_req)
+{
+    UNUSED (bd_addr);
+    UNUSED (oob_data);
+
+    if(auth_req & BTA_AUTH_BONDS)
+    {
+        BTIF_TRACE_DEBUG("%s auth_req:%d", __FUNCTION__, auth_req);
+        pairing_cb.auth_req = auth_req;
+        pairing_cb.io_cap = io_cap;
+    }
+}
+
+void btif_dm_set_oob_for_io_req(tBTA_OOB_DATA  *p_has_oob_data)
+{
+    if (is_empty_128bit(oob_cb.oob_data.c192))
+    {
+        *p_has_oob_data = FALSE;
+    }
+    else
+    {
+        *p_has_oob_data = TRUE;
+    }
+    BTIF_TRACE_DEBUG("%s: *p_has_oob_data=%d", __func__, *p_has_oob_data);
+}
+
+void btif_dm_set_oob_for_le_io_req(BD_ADDR bd_addr, tBTA_OOB_DATA  *p_has_oob_data,
+                                   tBTA_LE_AUTH_REQ *p_auth_req)
+{
+
+    /* We currently support only Security Manager TK as OOB data for LE transport.
+       If it's not present mark no OOB data.
+     */
+    if (!is_empty_128bit(oob_cb.oob_data.sm_tk))
+    {
+        /* make sure OOB data is for this particular device */
+        if (memcmp(bd_addr, oob_cb.bdaddr, BD_ADDR_LEN) == 0) {
+            // When using OOB with TK, SC Secure Connections bit must be disabled.
+            tBTA_LE_AUTH_REQ mask = ~BTM_LE_AUTH_REQ_SC_ONLY;
+            *p_auth_req = ((*p_auth_req) & mask);
+
+            *p_has_oob_data = TRUE;
+        }
+        else
+        {
+            *p_has_oob_data = FALSE;
+            BTIF_TRACE_WARNING("%s: remote address didn't match OOB data address",
+                               __func__);
+        }
+    }
+    else
+    {
+        *p_has_oob_data = FALSE;
+    }
+    BTIF_TRACE_DEBUG("%s *p_has_oob_data=%d", __func__, *p_has_oob_data);
+}
+
+#ifdef BTIF_DM_OOB_TEST
+void btif_dm_load_local_oob(void)
+{
+    char prop_oob[PROPERTY_VALUE_MAX];
+    osi_property_get("service.brcm.bt.oob", prop_oob, "3");
+    BTIF_TRACE_DEBUG("%s: prop_oob = %s", __func__, prop_oob);
+    if (prop_oob[0] != '3')
+    {
+        if (is_empty_128bit(oob_cb.oob_data.c192))
+        {
+            BTIF_TRACE_DEBUG("%s: read OOB, call BTA_DmLocalOob()", __func__);
+            BTA_DmLocalOob();
+        }
+    }
+}
+
+void btif_dm_proc_loc_oob(BOOLEAN valid, BT_OCTET16 c, BT_OCTET16 r)
+{
+    FILE *fp;
+    char *path_a = "/data/misc/bluedroid/LOCAL/a.key";
+    char *path_b = "/data/misc/bluedroid/LOCAL/b.key";
+    char *path = NULL;
+    char prop_oob[PROPERTY_VALUE_MAX];
+    BTIF_TRACE_DEBUG("%s: valid=%d", __func__, valid);
+    if (is_empty_128bit(oob_cb.oob_data.c192) && valid)
+    {
+        BTIF_TRACE_DEBUG("save local OOB data in memory");
+        memcpy(oob_cb.oob_data.c192, c, BT_OCTET16_LEN);
+        memcpy(oob_cb.oob_data.r192, r, BT_OCTET16_LEN);
+        osi_property_get("service.brcm.bt.oob", prop_oob, "3");
+        BTIF_TRACE_DEBUG("%s: prop_oob = %s", __func__, prop_oob);
+        if (prop_oob[0] == '1')
+            path = path_a;
+        else if (prop_oob[0] == '2')
+            path = path_b;
+        if (path)
+        {
+            fp = fopen(path, "wb+");
+            if (fp == NULL)
+            {
+                BTIF_TRACE_DEBUG("%s: failed to save local OOB data to %s", __func__, path);
+            }
+            else
+            {
+                BTIF_TRACE_DEBUG("%s: save local OOB data into file %s", __func__, path);
+                fwrite (c , 1 , BT_OCTET16_LEN , fp );
+                fwrite (r , 1 , BT_OCTET16_LEN , fp );
+                fclose(fp);
+            }
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btif_dm_get_smp_config
+**
+** Description      Retrieve the SMP pairing options from the bt_stack.conf
+**                  file. To provide specific pairing options for the host
+**                  add a node with label "SmpOptions" to the config file
+**                  and assign it a comma separated list of 5 values in the
+**                  format: auth, io, ikey, rkey, ksize, oob
+**                  eg: PTS_SmpOptions=0xD,0x4,0xf,0xf,0x10
+**
+** Parameters:      tBTE_APPL_CFG*: pointer to struct defining pairing options
+**
+** Returns          TRUE if the options were successfully read, else FALSE
+**
+*******************************************************************************/
+BOOLEAN btif_dm_get_smp_config(tBTE_APPL_CFG* p_cfg) {
+
+    if(!stack_config_get_interface()->get_pts_smp_options()) {
+        BTIF_TRACE_DEBUG ("%s: SMP options not found in configuration", __func__);
+        return FALSE;
+    }
+
+    char conf[64];
+    const char* recv = stack_config_get_interface()->get_pts_smp_options();
+    char* pch;
+    char* endptr;
+
+    strncpy(conf, recv, 64);
+    conf[63] = 0; // null terminate
+
+    if ((pch = strtok(conf, ",")) != NULL)
+        p_cfg->ble_auth_req = (UINT8) strtoul(pch, &endptr, 16);
+    else
+        return FALSE;
+
+    if ((pch = strtok(NULL, ",")) != NULL)
+        p_cfg->ble_io_cap =  (UINT8) strtoul(pch, &endptr, 16);
+    else
+        return FALSE;
+
+    if ((pch = strtok(NULL, ",")) != NULL)
+        p_cfg->ble_init_key =  (UINT8) strtoul(pch, &endptr, 16);
+    else
+        return FALSE;
+
+    if ((pch = strtok(NULL, ",")) != NULL)
+        p_cfg->ble_resp_key =  (UINT8) strtoul(pch, &endptr, 16);
+    else
+        return FALSE;
+
+    if ((pch = strtok(NULL, ",")) != NULL)
+        p_cfg->ble_max_key_size =  (UINT8) strtoul(pch, &endptr, 16);
+    else
+        return FALSE;
+
+    return TRUE;
+}
+
+BOOLEAN btif_dm_proc_rmt_oob(BD_ADDR bd_addr,  BT_OCTET16 p_c, BT_OCTET16 p_r)
+{
+    char t[128];
+    FILE *fp;
+    char *path_a = "/data/misc/bluedroid/LOCAL/a.key";
+    char *path_b = "/data/misc/bluedroid/LOCAL/b.key";
+    char *path = NULL;
+    char prop_oob[PROPERTY_VALUE_MAX];
+    BOOLEAN result = FALSE;
+    bt_bdaddr_t bt_bd_addr;
+    bdcpy(oob_cb.bdaddr, bd_addr);
+    osi_property_get("service.brcm.bt.oob", prop_oob, "3");
+    BTIF_TRACE_DEBUG("%s: prop_oob = %s", __func__, prop_oob);
+    if (prop_oob[0] == '1')
+        path = path_b;
+    else if (prop_oob[0] == '2')
+        path = path_a;
+    if (path)
+    {
+        fp = fopen(path, "rb");
+        if (fp == NULL)
+        {
+            BTIF_TRACE_DEBUG("%s: failed to read OOB keys from %s", __func__, path);
+            return FALSE;
+        }
+        else
+        {
+            BTIF_TRACE_DEBUG("%s: read OOB data from %s", __func__, path);
+            fread (p_c , 1 , BT_OCTET16_LEN , fp );
+            fread (p_r , 1 , BT_OCTET16_LEN , fp );
+            fclose(fp);
+        }
+        BTIF_TRACE_DEBUG("----%s: TRUE", __func__);
+        sprintf(t, "%02x:%02x:%02x:%02x:%02x:%02x",
+                oob_cb.bdaddr[0], oob_cb.bdaddr[1], oob_cb.bdaddr[2],
+                oob_cb.bdaddr[3], oob_cb.bdaddr[4], oob_cb.bdaddr[5]);
+        BTIF_TRACE_DEBUG("----%s: peer_bdaddr = %s", __func__, t);
+        sprintf(t, "%02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x",
+                p_c[0], p_c[1], p_c[2],  p_c[3],  p_c[4],  p_c[5],  p_c[6],  p_c[7],
+                p_c[8], p_c[9], p_c[10], p_c[11], p_c[12], p_c[13], p_c[14], p_c[15]);
+        BTIF_TRACE_DEBUG("----%s: c = %s", __func__, t);
+        sprintf(t, "%02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x",
+                p_r[0], p_r[1], p_r[2],  p_r[3],  p_r[4],  p_r[5],  p_r[6],  p_r[7],
+                p_r[8], p_r[9], p_r[10], p_r[11], p_r[12], p_r[13], p_r[14], p_r[15]);
+        BTIF_TRACE_DEBUG("----%s: r = %s", __func__, t);
+        bdcpy(bt_bd_addr.address, bd_addr);
+        btif_transfer_context(btif_dm_generic_evt, BTIF_DM_CB_BOND_STATE_BONDING,
+                              (char *)&bt_bd_addr, sizeof(bt_bdaddr_t), NULL);
+        result = TRUE;
+    }
+    BTIF_TRACE_DEBUG("%s: result=%d", __func__, result);
+    return result;
+}
+#endif /*  BTIF_DM_OOB_TEST */
+#if (defined(BLE_INCLUDED) && (BLE_INCLUDED == TRUE))
+
+static void btif_dm_ble_key_notif_evt(tBTA_DM_SP_KEY_NOTIF *p_ssp_key_notif)
+{
+    bt_bdaddr_t bd_addr;
+    bt_bdname_t bd_name;
+    UINT32 cod;
+    int dev_type;
+
+    BTIF_TRACE_DEBUG("%s", __FUNCTION__);
+
+    /* Remote name update */
+    if (!btif_get_device_type(p_ssp_key_notif->bd_addr, &dev_type))
+    {
+        dev_type = BT_DEVICE_TYPE_BLE;
+    }
+    btif_dm_update_ble_remote_properties(p_ssp_key_notif->bd_addr , p_ssp_key_notif->bd_name,
+                                         (tBT_DEVICE_TYPE) dev_type);
+    bdcpy(bd_addr.address, p_ssp_key_notif->bd_addr);
+    memcpy(bd_name.name, p_ssp_key_notif->bd_name, BD_NAME_LEN);
+
+    bond_state_changed(BT_STATUS_SUCCESS, &bd_addr, BT_BOND_STATE_BONDING);
+    pairing_cb.is_ssp = FALSE;
+    cod = COD_UNCLASSIFIED;
+
+    HAL_CBACK(bt_hal_cbacks, ssp_request_cb, &bd_addr, &bd_name,
+              cod, BT_SSP_VARIANT_PASSKEY_NOTIFICATION,
+              p_ssp_key_notif->passkey);
+}
+
+/*******************************************************************************
+**
+** Function         btif_dm_ble_auth_cmpl_evt
+**
+** Description      Executes authentication complete event in btif context
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btif_dm_ble_auth_cmpl_evt (tBTA_DM_AUTH_CMPL *p_auth_cmpl)
+{
+    /* Save link key, if not temporary */
+    bt_bdaddr_t bd_addr;
+    bt_status_t status = BT_STATUS_FAIL;
+    bt_bond_state_t state = BT_BOND_STATE_NONE;
+
+    bdcpy(bd_addr.address, p_auth_cmpl->bd_addr);
+
+    /* Clear OOB data */
+    memset(&oob_cb, 0, sizeof(oob_cb));
+
+    if ( (p_auth_cmpl->success == TRUE) && (p_auth_cmpl->key_present) )
+    {
+        /* store keys */
+    }
+    if (p_auth_cmpl->success)
+    {
+        status = BT_STATUS_SUCCESS;
+        state = BT_BOND_STATE_BONDED;
+        int addr_type;
+        bt_bdaddr_t bdaddr;
+        bdcpy(bdaddr.address, p_auth_cmpl->bd_addr);
+        if (btif_storage_get_remote_addr_type(&bdaddr, &addr_type) != BT_STATUS_SUCCESS)
+            btif_storage_set_remote_addr_type(&bdaddr, p_auth_cmpl->addr_type);
+
+        /* Test for temporary bonding */
+        if (btm_get_bond_type_dev(p_auth_cmpl->bd_addr) == BOND_TYPE_TEMPORARY) {
+            BTIF_TRACE_DEBUG("%s: sending BT_BOND_STATE_NONE for Temp pairing",
+                             __func__);
+            btif_storage_remove_bonded_device(&bdaddr);
+            state = BT_BOND_STATE_NONE;
+        } else {
+            btif_dm_save_ble_bonding_keys();
+#ifdef BLUETOOTH_RTK
+       if((!bdcmp(pairing_cb.bd_addr,bd_addr.address)) && check_cod_hid(&bd_addr))
+        {
+            BTIF_TRACE_DEBUG("%s device is hid,bond state change bonded lator",__FUNCTION__ );
+            state = BT_BOND_STATE_BONDING;
+        }
+#endif
+            BTA_GATTC_Refresh(bd_addr.address);
+            btif_dm_get_remote_services_by_transport(&bd_addr, BTA_GATT_TRANSPORT_LE);
+        }
+    }
+    else
+    {
+        /*Map the HCI fail reason  to  bt status  */
+        switch (p_auth_cmpl->fail_reason)
+        {
+            case BTA_DM_AUTH_SMP_PAIR_AUTH_FAIL:
+            case BTA_DM_AUTH_SMP_CONFIRM_VALUE_FAIL:
+                btif_dm_remove_ble_bonding_keys();
+                status = BT_STATUS_AUTH_FAILURE;
+                break;
+            case BTA_DM_AUTH_SMP_PAIR_NOT_SUPPORT:
+                status = BT_STATUS_AUTH_REJECTED;
+                break;
+            default:
+                btif_dm_remove_ble_bonding_keys();
+                status =  BT_STATUS_FAIL;
+                break;
+        }
+    }
+    bond_state_changed(status, &bd_addr, state);
+}
+
+void    btif_dm_load_ble_local_keys(void)
+{
+    memset(&ble_local_key_cb, 0, sizeof(btif_dm_local_key_cb_t));
+
+    if (btif_storage_get_ble_local_key(BTIF_DM_LE_LOCAL_KEY_ER,(char*)&ble_local_key_cb.er[0],
+                                       BT_OCTET16_LEN)== BT_STATUS_SUCCESS)
+    {
+        ble_local_key_cb.is_er_rcvd = TRUE;
+        BTIF_TRACE_DEBUG("%s BLE ER key loaded",__FUNCTION__ );
+    }
+
+    if ((btif_storage_get_ble_local_key(BTIF_DM_LE_LOCAL_KEY_IR,(char*)&ble_local_key_cb.id_keys.ir[0],
+                                        BT_OCTET16_LEN)== BT_STATUS_SUCCESS )&&
+        (btif_storage_get_ble_local_key(BTIF_DM_LE_LOCAL_KEY_IRK, (char*)&ble_local_key_cb.id_keys.irk[0],
+                                        BT_OCTET16_LEN)== BT_STATUS_SUCCESS)&&
+        (btif_storage_get_ble_local_key(BTIF_DM_LE_LOCAL_KEY_DHK,(char*)&ble_local_key_cb.id_keys.dhk[0],
+                                        BT_OCTET16_LEN)== BT_STATUS_SUCCESS))
+    {
+        ble_local_key_cb.is_id_keys_rcvd = TRUE;
+        BTIF_TRACE_DEBUG("%s BLE ID keys loaded",__FUNCTION__ );
+    }
+
+}
+void    btif_dm_get_ble_local_keys(tBTA_DM_BLE_LOCAL_KEY_MASK *p_key_mask, BT_OCTET16 er,
+                                   tBTA_BLE_LOCAL_ID_KEYS *p_id_keys)
+{
+    if (ble_local_key_cb.is_er_rcvd )
+    {
+        memcpy(&er[0], &ble_local_key_cb.er[0], sizeof(BT_OCTET16));
+        *p_key_mask |= BTA_BLE_LOCAL_KEY_TYPE_ER;
+    }
+
+    if (ble_local_key_cb.is_id_keys_rcvd)
+    {
+        memcpy(&p_id_keys->ir[0], &ble_local_key_cb.id_keys.ir[0], sizeof(BT_OCTET16));
+        memcpy(&p_id_keys->irk[0],  &ble_local_key_cb.id_keys.irk[0], sizeof(BT_OCTET16));
+        memcpy(&p_id_keys->dhk[0],  &ble_local_key_cb.id_keys.dhk[0], sizeof(BT_OCTET16));
+        *p_key_mask |= BTA_BLE_LOCAL_KEY_TYPE_ID;
+    }
+    BTIF_TRACE_DEBUG("%s  *p_key_mask=0x%02x",__FUNCTION__,   *p_key_mask);
+}
+
+void btif_dm_save_ble_bonding_keys(void)
+{
+
+    bt_bdaddr_t bd_addr;
+
+    BTIF_TRACE_DEBUG("%s",__FUNCTION__ );
+
+    bdcpy(bd_addr.address, pairing_cb.bd_addr);
+
+    if (pairing_cb.ble.is_penc_key_rcvd)
+    {
+        btif_storage_add_ble_bonding_key(&bd_addr,
+                                         (char *) &pairing_cb.ble.penc_key,
+                                         BTIF_DM_LE_KEY_PENC,
+                                         sizeof(tBTM_LE_PENC_KEYS));
+    }
+
+    if (pairing_cb.ble.is_pid_key_rcvd)
+    {
+        btif_storage_add_ble_bonding_key(&bd_addr,
+                                         (char *) &pairing_cb.ble.pid_key,
+                                         BTIF_DM_LE_KEY_PID,
+                                         sizeof(tBTM_LE_PID_KEYS));
+    }
+
+    if (pairing_cb.ble.is_pcsrk_key_rcvd)
+    {
+        btif_storage_add_ble_bonding_key(&bd_addr,
+                                         (char *) &pairing_cb.ble.pcsrk_key,
+                                         BTIF_DM_LE_KEY_PCSRK,
+                                         sizeof(tBTM_LE_PCSRK_KEYS));
+    }
+
+    if (pairing_cb.ble.is_lenc_key_rcvd)
+    {
+        btif_storage_add_ble_bonding_key(&bd_addr,
+                                         (char *) &pairing_cb.ble.lenc_key,
+                                         BTIF_DM_LE_KEY_LENC,
+                                         sizeof(tBTM_LE_LENC_KEYS));
+    }
+
+    if (pairing_cb.ble.is_lcsrk_key_rcvd)
+    {
+        btif_storage_add_ble_bonding_key(&bd_addr,
+                                         (char *) &pairing_cb.ble.lcsrk_key,
+                                         BTIF_DM_LE_KEY_LCSRK,
+                                         sizeof(tBTM_LE_LCSRK_KEYS));
+    }
+
+    if (pairing_cb.ble.is_lidk_key_rcvd)
+    {
+        btif_storage_add_ble_bonding_key(&bd_addr,
+                                         NULL,
+                                         BTIF_DM_LE_KEY_LID,
+                                         0);
+    }
+
+}
+
+void btif_dm_remove_ble_bonding_keys(void)
+{
+    bt_bdaddr_t bd_addr;
+
+    BTIF_TRACE_DEBUG("%s",__FUNCTION__ );
+
+    bdcpy(bd_addr.address, pairing_cb.bd_addr);
+    btif_storage_remove_ble_bonding_keys(&bd_addr);
+}
+
+/*******************************************************************************
+**
+** Function         btif_dm_ble_sec_req_evt
+**
+** Description      Eprocess security request event in btif context
+**
+** Returns          void
+**
+*******************************************************************************/
+void btif_dm_ble_sec_req_evt(tBTA_DM_BLE_SEC_REQ *p_ble_req)
+{
+    bt_bdaddr_t bd_addr;
+    bt_bdname_t bd_name;
+    UINT32 cod;
+    int dev_type;
+
+    BTIF_TRACE_DEBUG("%s", __FUNCTION__);
+
+    if (pairing_cb.state == BT_BOND_STATE_BONDING)
+    {
+        BTIF_TRACE_DEBUG("%s Discard security request", __FUNCTION__);
+        return;
+    }
+
+    /* Remote name update */
+    if (!btif_get_device_type(p_ble_req->bd_addr, &dev_type))
+    {
+        dev_type = BT_DEVICE_TYPE_BLE;
+    }
+    btif_dm_update_ble_remote_properties(p_ble_req->bd_addr, p_ble_req->bd_name,
+                                         (tBT_DEVICE_TYPE) dev_type);
+
+    bdcpy(bd_addr.address, p_ble_req->bd_addr);
+    memcpy(bd_name.name, p_ble_req->bd_name, BD_NAME_LEN);
+
+    bond_state_changed(BT_STATUS_SUCCESS, &bd_addr, BT_BOND_STATE_BONDING);
+
+    pairing_cb.bond_type = BOND_TYPE_PERSISTENT;
+    pairing_cb.is_le_only = TRUE;
+    pairing_cb.is_le_nc = FALSE;
+    pairing_cb.is_ssp = TRUE;
+    btm_set_bond_type_dev(p_ble_req->bd_addr, pairing_cb.bond_type);
+
+    cod = COD_UNCLASSIFIED;
+
+    HAL_CBACK(bt_hal_cbacks, ssp_request_cb, &bd_addr, &bd_name, cod,
+              BT_SSP_VARIANT_CONSENT, 0);
+}
+
+/*******************************************************************************
+**
+** Function         btif_dm_ble_passkey_req_evt
+**
+** Description      Executes pin request event in btif context
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btif_dm_ble_passkey_req_evt(tBTA_DM_PIN_REQ *p_pin_req)
+{
+    bt_bdaddr_t bd_addr;
+    bt_bdname_t bd_name;
+    UINT32 cod;
+    int dev_type;
+
+    /* Remote name update */
+    if (!btif_get_device_type(p_pin_req->bd_addr, &dev_type))
+    {
+        dev_type = BT_DEVICE_TYPE_BLE;
+    }
+    btif_dm_update_ble_remote_properties(p_pin_req->bd_addr,p_pin_req->bd_name,
+                                         (tBT_DEVICE_TYPE) dev_type);
+
+    bdcpy(bd_addr.address, p_pin_req->bd_addr);
+    memcpy(bd_name.name, p_pin_req->bd_name, BD_NAME_LEN);
+
+    bond_state_changed(BT_STATUS_SUCCESS, &bd_addr, BT_BOND_STATE_BONDING);
+    pairing_cb.is_le_only = TRUE;
+
+    cod = COD_UNCLASSIFIED;
+
+    HAL_CBACK(bt_hal_cbacks, pin_request_cb,
+              &bd_addr, &bd_name, cod, FALSE);
+}
+static void btif_dm_ble_key_nc_req_evt(tBTA_DM_SP_KEY_NOTIF *p_notif_req)
+{
+    /* TODO implement key notification for numeric comparison */
+    BTIF_TRACE_DEBUG("%s", __FUNCTION__);
+
+    /* Remote name update */
+    btif_update_remote_properties(p_notif_req->bd_addr , p_notif_req->bd_name,
+                                          NULL, BT_DEVICE_TYPE_BLE);
+
+    bt_bdaddr_t bd_addr;
+    bdcpy(bd_addr.address, p_notif_req->bd_addr);
+
+    bt_bdname_t bd_name;
+    memcpy(bd_name.name, p_notif_req->bd_name, BD_NAME_LEN);
+
+    bond_state_changed(BT_STATUS_SUCCESS, &bd_addr, BT_BOND_STATE_BONDING);
+    pairing_cb.is_ssp = FALSE;
+    pairing_cb.is_le_only = TRUE;
+    pairing_cb.is_le_nc = TRUE;
+
+    HAL_CBACK(bt_hal_cbacks, ssp_request_cb, &bd_addr, &bd_name,
+              COD_UNCLASSIFIED, BT_SSP_VARIANT_PASSKEY_CONFIRMATION,
+              p_notif_req->passkey);
+}
+
+static void btif_dm_ble_oob_req_evt(tBTA_DM_SP_RMT_OOB *req_oob_type)
+{
+    BTIF_TRACE_DEBUG("%s", __FUNCTION__);
+
+    bt_bdaddr_t bd_addr;
+    bdcpy(bd_addr.address, req_oob_type->bd_addr);
+
+    /* We currently support only Security Manager TK as OOB data. We already
+     * checked if it's present in btif_dm_set_oob_for_le_io_req, but check here
+     * again. If it's not present do nothing, pairing will timeout.
+     */
+    if (is_empty_128bit(oob_cb.oob_data.sm_tk)) {
+        return;
+    }
+
+    /* make sure OOB data is for this particular device */
+    if (memcmp(req_oob_type->bd_addr, oob_cb.bdaddr, BD_ADDR_LEN) != 0) {
+        BTIF_TRACE_WARNING("%s: remote address didn't match OOB data address", __func__);
+        return;
+    }
+
+    /* Remote name update */
+    btif_update_remote_properties(req_oob_type->bd_addr , req_oob_type->bd_name,
+                                          NULL, BT_DEVICE_TYPE_BLE);
+
+    bond_state_changed(BT_STATUS_SUCCESS, &bd_addr, BT_BOND_STATE_BONDING);
+    pairing_cb.is_ssp = FALSE;
+    pairing_cb.is_le_only = TRUE;
+    pairing_cb.is_le_nc = FALSE;
+
+    BTM_BleOobDataReply(req_oob_type->bd_addr, 0, 16, oob_cb.oob_data.sm_tk);
+}
+
+void btif_dm_update_ble_remote_properties( BD_ADDR bd_addr, BD_NAME bd_name,
+                                           tBT_DEVICE_TYPE dev_type)
+{
+   btif_update_remote_properties(bd_addr,bd_name,NULL,dev_type);
+}
+
+static void btif_dm_ble_tx_test_cback(void *p)
+{
+    btif_transfer_context(btif_dm_generic_evt, BTIF_DM_CB_LE_TX_TEST,
+                          (char *)p, 1, NULL);
+}
+
+static void btif_dm_ble_rx_test_cback(void *p)
+{
+    btif_transfer_context(btif_dm_generic_evt, BTIF_DM_CB_LE_RX_TEST,
+                          (char *)p, 1, NULL);
+}
+
+static void btif_dm_ble_test_end_cback(void *p)
+{
+    btif_transfer_context(btif_dm_generic_evt, BTIF_DM_CB_LE_TEST_END,
+                          (char *)p, 3, NULL);
+}
+/*******************************************************************************
+**
+** Function         btif_le_test_mode
+**
+** Description     Sends a HCI BLE Test command to the Controller
+**
+** Returns          BT_STATUS_SUCCESS on success
+**
+*******************************************************************************/
+bt_status_t btif_le_test_mode(uint16_t opcode, uint8_t *buf, uint8_t len)
+{
+     switch (opcode) {
+         case HCI_BLE_TRANSMITTER_TEST:
+             if (len != 3) return BT_STATUS_PARM_INVALID;
+             BTM_BleTransmitterTest(buf[0],buf[1],buf[2], btif_dm_ble_tx_test_cback);
+             break;
+         case HCI_BLE_RECEIVER_TEST:
+             if (len != 1) return BT_STATUS_PARM_INVALID;
+             BTM_BleReceiverTest(buf[0], btif_dm_ble_rx_test_cback);
+             break;
+         case HCI_BLE_TEST_END:
+             BTM_BleTestEnd((tBTM_CMPL_CB*) btif_dm_ble_test_end_cback);
+             break;
+         default:
+             BTIF_TRACE_ERROR("%s: Unknown LE Test Mode Command 0x%x", __FUNCTION__, opcode);
+             return BT_STATUS_UNSUPPORTED;
+     }
+     return BT_STATUS_SUCCESS;
+}
+#endif
+
+void btif_dm_on_disable()
+{
+    /* cancel any pending pairing requests */
+    if (pairing_cb.state == BT_BOND_STATE_BONDING)
+    {
+        bt_bdaddr_t bd_addr;
+
+        BTIF_TRACE_DEBUG("%s: Cancel pending pairing request", __FUNCTION__);
+        bdcpy(bd_addr.address, pairing_cb.bd_addr);
+        btif_dm_cancel_bond(&bd_addr);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btif_dm_read_energy_info
+**
+** Description     Reads the energy info from controller
+**
+** Returns         void
+**
+*******************************************************************************/
+void btif_dm_read_energy_info()
+{
+#if (defined(BLE_INCLUDED) && (BLE_INCLUDED == TRUE))
+    BTA_DmBleGetEnergyInfo(bta_energy_info_cb);
+#endif
+}
+
+static char* btif_get_default_local_name() {
+    if (btif_default_local_name[0] == '\0')
+    {
+        int max_len = sizeof(btif_default_local_name) - 1;
+        if (BTM_DEF_LOCAL_NAME[0] != '\0')
+        {
+            strncpy(btif_default_local_name, BTM_DEF_LOCAL_NAME, max_len);
+        }
+        else
+        {
+            char prop_model[PROPERTY_VALUE_MAX];
+            osi_property_get(PROPERTY_PRODUCT_MODEL, prop_model, "");
+            strncpy(btif_default_local_name, prop_model, max_len);
+        }
+        btif_default_local_name[max_len] = '\0';
+    }
+    return btif_default_local_name;
+}
+
+static void btif_stats_add_bond_event(const bt_bdaddr_t *bd_addr,
+                                      bt_bond_function_t function,
+                                      bt_bond_state_t state) {
+    pthread_mutex_lock(&bond_event_lock);
+
+    btif_bond_event_t* event = &btif_dm_bond_events[btif_events_end_index];
+    memcpy(&event->bd_addr, bd_addr, sizeof(bt_bdaddr_t));
+    event->function = function;
+    event->state = state;
+    clock_gettime(CLOCK_REALTIME, &event->timestamp);
+
+    btif_num_bond_events++;
+    btif_events_end_index = (btif_events_end_index + 1) % (MAX_BTIF_BOND_EVENT_ENTRIES + 1);
+    if (btif_events_end_index == btif_events_start_index) {
+        btif_events_start_index = (btif_events_start_index + 1) % (MAX_BTIF_BOND_EVENT_ENTRIES + 1);
+    }
+
+    int type;
+    btif_get_device_type(bd_addr->address, &type);
+
+    device_type_t device_type;
+    switch (type) {
+        case BT_DEVICE_TYPE_BREDR:
+            device_type = DEVICE_TYPE_BREDR;
+            break;
+        case BT_DEVICE_TYPE_BLE:
+            device_type = DEVICE_TYPE_LE;
+            break;
+        case BT_DEVICE_TYPE_DUMO:
+            device_type = DEVICE_TYPE_DUMO;
+            break;
+        default:
+            device_type = DEVICE_TYPE_UNKNOWN;
+            break;
+    }
+
+    uint32_t cod = get_cod(bd_addr);
+    uint64_t ts = event->timestamp.tv_sec * 1000 +
+                  event->timestamp.tv_nsec / 1000000;
+    metrics_pair_event(0, ts, cod, device_type);
+
+    pthread_mutex_unlock(&bond_event_lock);
+}
+
+void btif_debug_bond_event_dump(int fd) {
+    pthread_mutex_lock(&bond_event_lock);
+    dprintf(fd, "\nBond Events: \n");
+    dprintf(fd, "  Total Number of events: %zu\n", btif_num_bond_events);
+    if (btif_num_bond_events > 0)
+        dprintf(fd, "  Time          BD_ADDR            Function             State\n");
+
+    for (size_t i = btif_events_start_index; i != btif_events_end_index;
+         i = (i + 1) % (MAX_BTIF_BOND_EVENT_ENTRIES + 1)) {
+        btif_bond_event_t* event = &btif_dm_bond_events[i];
+
+        char eventtime[20];
+        char temptime[20];
+        struct tm *tstamp = localtime(&event->timestamp.tv_sec);
+        strftime(temptime, sizeof(temptime), "%H:%M:%S", tstamp);
+        snprintf(eventtime, sizeof(eventtime), "%s.%03ld", temptime,
+                 event->timestamp.tv_nsec / 1000000);
+
+        char bdaddr[18];
+        bdaddr_to_string(&event->bd_addr, bdaddr, sizeof(bdaddr));
+
+        char* func_name;
+        switch (event->function) {
+            case BTIF_DM_FUNC_CREATE_BOND:
+                func_name = "btif_dm_create_bond";
+                break;
+            case BTIF_DM_FUNC_REMOVE_BOND:
+                func_name = "btif_dm_remove_bond";
+                break;
+            case BTIF_DM_FUNC_BOND_STATE_CHANGED:
+                func_name = "bond_state_changed ";
+                break;
+            default:
+                func_name = "Invalid value      ";
+                break;
+        }
+
+        char* bond_state;
+        switch (event->state) {
+            case BT_BOND_STATE_NONE:
+                bond_state = "BOND_STATE_NONE";
+                break;
+            case BT_BOND_STATE_BONDING:
+                bond_state = "BOND_STATE_BONDING";
+                break;
+            case BT_BOND_STATE_BONDED:
+                bond_state = "BOND_STATE_BONDED";
+                break;
+            default:
+                bond_state = "Invalid bond state";
+                break;
+        }
+        dprintf(fd, "  %s  %s  %s  %s\n", eventtime, bdaddr, func_name, bond_state);
+    }
+    pthread_mutex_unlock(&bond_event_lock);
+}
diff --git a/rtkbt/code/bt/btif/src/btif_gatt.c b/rtkbt/code/bt/btif/src/btif_gatt.c
new file mode 100755
index 0000000..fa623d6
--- /dev/null
+++ b/rtkbt/code/bt/btif/src/btif_gatt.c
@@ -0,0 +1,120 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2013 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/*******************************************************************************
+ *
+ *  Filename:      btif_gatt.c
+ *
+ *  Description:   GATT Profile Bluetooth Interface
+ *
+ *******************************************************************************/
+
+#define LOG_TAG "bt_btif_gatt"
+
+#include <errno.h>
+#include <hardware/bluetooth.h>
+#include <hardware/bt_gatt.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "btif_common.h"
+#include "btif_util.h"
+
+#if (defined(BLE_INCLUDED) && (BLE_INCLUDED == TRUE))
+
+#include "bta_api.h"
+#include "bta_gatt_api.h"
+#include "btif_gatt.h"
+#include "btif_gatt_util.h"
+#include "btif_storage.h"
+
+const btgatt_callbacks_t *bt_gatt_callbacks = NULL;
+
+extern btgatt_client_interface_t btgattClientInterface;
+extern btgatt_server_interface_t btgattServerInterface;
+
+/*******************************************************************************
+**
+** Function         btif_gatt_init
+**
+** Description      Initializes the GATT interface
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+static bt_status_t btif_gatt_init( const btgatt_callbacks_t* callbacks )
+{
+    bt_gatt_callbacks = callbacks;
+
+    return BT_STATUS_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         btif_gatt_cleanup
+**
+** Description      Closes the GATT interface
+**
+** Returns          void
+**
+*******************************************************************************/
+static void  btif_gatt_cleanup( void )
+{
+    if (bt_gatt_callbacks)
+        bt_gatt_callbacks = NULL;
+
+    BTA_GATTC_Disable();
+    BTA_GATTS_Disable();
+}
+#ifdef BLUETOOTH_RTK
+static const btgatt_interface_t btgattInterface = {
+    .size = sizeof(btgattInterface),
+
+    .init = btif_gatt_init,
+    .cleanup = btif_gatt_cleanup,
+
+    .client = &btgattClientInterface,
+    .server = &btgattServerInterface,
+};
+#else
+static const btgatt_interface_t btgattInterface = {
+    sizeof(btgattInterface),
+
+    btif_gatt_init,
+    btif_gatt_cleanup,
+
+    &btgattClientInterface,
+    &btgattServerInterface,
+};
+#endif
+/*******************************************************************************
+**
+** Function         btif_gatt_get_interface
+**
+** Description      Get the gatt callback interface
+**
+** Returns          btgatt_interface_t
+**
+*******************************************************************************/
+const btgatt_interface_t *btif_gatt_get_interface()
+{
+    return &btgattInterface;
+}
+
+#endif
diff --git a/rtkbt/code/bt/btif/src/btif_gatt_client.c b/rtkbt/code/bt/btif/src/btif_gatt_client.c
new file mode 100755
index 0000000..4bc9096
--- /dev/null
+++ b/rtkbt/code/bt/btif/src/btif_gatt_client.c
@@ -0,0 +1,2229 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2014 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/*******************************************************************************
+ *
+ *  Filename:      btif_gatt_client.c
+ *
+ *  Description:   GATT client implementation
+ *
+ *******************************************************************************/
+
+#define LOG_TAG "bt_btif_gattc"
+
+#include <errno.h>
+#include <hardware/bluetooth.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "device/include/controller.h"
+
+
+#include "btcore/include/bdaddr.h"
+#include "btif_common.h"
+#include "btif_util.h"
+
+#if (defined(BLE_INCLUDED) && (BLE_INCLUDED == TRUE))
+
+#include <hardware/bt_gatt.h>
+
+#include "bta_api.h"
+#include "bta_gatt_api.h"
+#include "btif_config.h"
+#include "btif_dm.h"
+#include "btif_gatt.h"
+#include "btif_gatt_multi_adv_util.h"
+#include "btif_gatt_util.h"
+#include "btif_storage.h"
+#include "btif_storage.h"
+#include "osi/include/log.h"
+#include "vendor_api.h"
+
+/*******************************************************************************
+**  Constants & Macros
+********************************************************************************/
+
+#define CHECK_BTGATT_INIT() if (bt_gatt_callbacks == NULL)\
+    {\
+        LOG_WARN(LOG_TAG, "%s: BTGATT not initialized", __FUNCTION__);\
+        return BT_STATUS_NOT_READY;\
+    } else {\
+        LOG_VERBOSE(LOG_TAG, "%s", __FUNCTION__);\
+    }
+
+#define BLE_RESOLVE_ADDR_MSB                 0x40   /* bit7, bit6 is 01 to be resolvable random */
+#define BLE_RESOLVE_ADDR_MASK                0xc0   /* bit 6, and bit7 */
+#define BTM_BLE_IS_RESOLVE_BDA(x)           ((x[0] & BLE_RESOLVE_ADDR_MASK) == BLE_RESOLVE_ADDR_MSB)
+
+typedef enum {
+    BTIF_GATTC_REGISTER_APP = 1000,
+    BTIF_GATTC_UNREGISTER_APP,
+    BTIF_GATTC_SCAN_START,
+    BTIF_GATTC_SCAN_STOP,
+    BTIF_GATTC_OPEN,
+    BTIF_GATTC_CLOSE,
+    BTIF_GATTC_SEARCH_SERVICE,
+    BTIF_GATTC_READ_CHAR,
+    BTIF_GATTC_READ_CHAR_DESCR,
+    BTIF_GATTC_WRITE_CHAR,
+    BTIF_GATTC_WRITE_CHAR_DESCR,
+    BTIF_GATTC_EXECUTE_WRITE,
+    BTIF_GATTC_REG_FOR_NOTIFICATION,
+    BTIF_GATTC_DEREG_FOR_NOTIFICATION,
+    BTIF_GATTC_REFRESH,
+    BTIF_GATTC_READ_RSSI,
+    BTIF_GATTC_LISTEN,
+    BTIF_GATTC_SET_ADV_DATA,
+    BTIF_GATTC_CONFIGURE_MTU,
+    BTIF_GATTC_CONN_PARAM_UPDT,
+    BTIF_GATTC_SCAN_FILTER_PARAM_SETUP,
+    BTIF_GATTC_SCAN_FILTER_CONFIG,
+    BTIF_GATTC_SCAN_FILTER_CLEAR,
+    BTIF_GATTC_SCAN_FILTER_ENABLE,
+    BTIF_GATTC_SET_SCAN_PARAMS,
+    BTIF_GATTC_ADV_INSTANCE_ENABLE,
+    BTIF_GATTC_ADV_INSTANCE_UPDATE,
+    BTIF_GATTC_ADV_INSTANCE_SET_DATA,
+    BTIF_GATTC_ADV_INSTANCE_DISABLE,
+    BTIF_GATTC_CONFIG_STORAGE_PARAMS,
+    BTIF_GATTC_ENABLE_BATCH_SCAN,
+    BTIF_GATTC_READ_BATCH_SCAN_REPORTS,
+    BTIF_GATTC_DISABLE_BATCH_SCAN,
+    BTIF_GATTC_GET_GATT_DB
+} btif_gattc_event_t;
+
+#define BTIF_GATT_MAX_OBSERVED_DEV 40
+
+#define BTIF_GATT_OBSERVE_EVT   0x1000
+#define BTIF_GATTC_RSSI_EVT     0x1001
+#define BTIF_GATTC_SCAN_FILTER_EVT  0x1003
+#define BTIF_GATTC_SCAN_PARAM_EVT   0x1004
+
+#define ENABLE_BATCH_SCAN 1
+#define DISABLE_BATCH_SCAN 0
+
+/*******************************************************************************
+**  Local type definitions
+********************************************************************************/
+typedef struct
+{
+    uint8_t report_format;
+    uint16_t data_len;
+    uint8_t num_records;
+    uint8_t *p_rep_data;
+} btgatt_batch_reports;
+
+typedef struct
+{
+    uint8_t  status;
+    uint8_t  client_if;
+    uint8_t  action;
+    uint8_t  avbl_space;
+    uint8_t  lost_timeout;
+    tBLE_ADDR_TYPE addr_type;
+    uint8_t  batch_scan_full_max;
+    uint8_t  batch_scan_trunc_max;
+    uint8_t  batch_scan_notify_threshold;
+    tBTA_BLE_BATCH_SCAN_MODE scan_mode;
+    uint32_t scan_interval;
+    uint32_t scan_window;
+    tBTA_BLE_DISCARD_RULE discard_rule;
+    btgatt_batch_reports  read_reports;
+} btgatt_batch_track_cb_t;
+
+typedef tBTA_DM_BLE_PF_FILT_PARAMS btgatt_adv_filt_param_t;
+
+typedef struct
+{
+    uint8_t     client_if;
+    uint8_t     action;
+    tBTA_DM_BLE_PF_COND_TYPE filt_type;
+    bt_bdaddr_t bd_addr;
+    uint8_t     value[BTGATT_MAX_ATTR_LEN];
+    uint8_t     value_len;
+    uint8_t     filt_index;
+    uint16_t    conn_id;
+    uint16_t    company_id_mask;
+    bt_uuid_t   uuid;
+    bt_uuid_t   uuid_mask;
+    uint8_t     value_mask[BTGATT_MAX_ATTR_LEN];
+    uint8_t     value_mask_len;
+    uint8_t     has_mask;
+    uint8_t     addr_type;
+    uint8_t     status;
+    tBTA_DM_BLE_PF_AVBL_SPACE avbl_space;
+    tBTA_DM_BLE_SCAN_COND_OP cond_op;
+    btgatt_adv_filt_param_t adv_filt_param;
+} btgatt_adv_filter_cb_t;
+
+typedef struct
+{
+    uint8_t     value[BTGATT_MAX_ATTR_LEN];
+    uint8_t     inst_id;
+    bt_bdaddr_t bd_addr;
+    btgatt_srvc_id_t srvc_id;
+    btgatt_srvc_id_t incl_srvc_id;
+    btgatt_gatt_id_t char_id;
+    btgatt_gatt_id_t descr_id;
+    uint16_t    handle;
+    bt_uuid_t   uuid;
+    bt_uuid_t   uuid_mask;
+    uint16_t    conn_id;
+    uint16_t    len;
+    uint16_t    mask;
+    uint32_t    scan_interval;
+    uint32_t    scan_window;
+    uint8_t     client_if;
+    uint8_t     action;
+    uint8_t     is_direct;
+    uint8_t     search_all;
+    uint8_t     auth_req;
+    uint8_t     write_type;
+    uint8_t     status;
+    uint8_t     addr_type;
+    uint8_t     start;
+    uint8_t     has_mask;
+    int8_t      rssi;
+    uint8_t     flag;
+    tBT_DEVICE_TYPE device_type;
+    btgatt_transport_t transport;
+} __attribute__((packed)) btif_gattc_cb_t;
+
+typedef struct
+{
+    bt_bdaddr_t bd_addr;
+    uint16_t    min_interval;
+    uint16_t    max_interval;
+    uint16_t    timeout;
+    uint16_t    latency;
+} btif_conn_param_cb_t;
+
+typedef struct
+{
+    bt_bdaddr_t bd_addr;
+    BOOLEAN     in_use;
+}__attribute__((packed)) btif_gattc_dev_t;
+
+typedef struct
+{
+    btif_gattc_dev_t remote_dev[BTIF_GATT_MAX_OBSERVED_DEV];
+    uint8_t            addr_type;
+    uint8_t            next_storage_idx;
+}__attribute__((packed)) btif_gattc_dev_cb_t;
+
+/*******************************************************************************
+**  Static variables
+********************************************************************************/
+
+extern const btgatt_callbacks_t *bt_gatt_callbacks;
+static btif_gattc_dev_cb_t  btif_gattc_dev_cb;
+static btif_gattc_dev_cb_t  *p_dev_cb = &btif_gattc_dev_cb;
+static uint8_t rssi_request_client_if;
+
+/*******************************************************************************
+**  Static functions
+********************************************************************************/
+
+static bt_status_t btif_gattc_multi_adv_disable(int client_if);
+static void btif_multi_adv_stop_cb(void *data)
+{
+    int client_if = PTR_TO_INT(data);
+    btif_gattc_multi_adv_disable(client_if); // Does context switch
+}
+
+static btgattc_error_t btif_gattc_translate_btm_status(tBTM_STATUS status)
+{
+    switch(status)
+    {
+       case BTM_SUCCESS:
+       case BTM_SUCCESS_NO_SECURITY:
+            return BT_GATTC_COMMAND_SUCCESS;
+
+       case BTM_CMD_STARTED:
+            return BT_GATTC_COMMAND_STARTED;
+
+       case BTM_BUSY:
+            return BT_GATTC_COMMAND_BUSY;
+
+       case BTM_CMD_STORED:
+            return BT_GATTC_COMMAND_STORED;
+
+       case BTM_NO_RESOURCES:
+            return BT_GATTC_NO_RESOURCES;
+
+       case BTM_MODE_UNSUPPORTED:
+       case BTM_WRONG_MODE:
+       case BTM_MODE4_LEVEL4_NOT_SUPPORTED:
+            return BT_GATTC_MODE_UNSUPPORTED;
+
+       case BTM_ILLEGAL_VALUE:
+       case BTM_SCO_BAD_LENGTH:
+            return BT_GATTC_ILLEGAL_VALUE;
+
+       case BTM_UNKNOWN_ADDR:
+            return BT_GATTC_UNKNOWN_ADDR;
+
+       case BTM_DEVICE_TIMEOUT:
+            return BT_GATTC_DEVICE_TIMEOUT;
+
+       case BTM_FAILED_ON_SECURITY:
+       case BTM_REPEATED_ATTEMPTS:
+       case BTM_NOT_AUTHORIZED:
+            return BT_GATTC_SECURITY_ERROR;
+
+       case BTM_DEV_RESET:
+       case BTM_ILLEGAL_ACTION:
+            return BT_GATTC_INCORRECT_STATE;
+
+       case BTM_BAD_VALUE_RET:
+            return BT_GATTC_INVALID_CONTROLLER_OUTPUT;
+
+       case BTM_DELAY_CHECK:
+            return BT_GATTC_DELAYED_ENCRYPTION_CHECK;
+
+       case BTM_ERR_PROCESSING:
+       default:
+          return BT_GATTC_ERR_PROCESSING;
+    }
+}
+
+static void btapp_gattc_req_data(UINT16 event, char *p_dest, char *p_src)
+{
+    tBTA_GATTC *p_dest_data = (tBTA_GATTC*) p_dest;
+    tBTA_GATTC *p_src_data = (tBTA_GATTC*) p_src;
+
+    if (!p_src_data || !p_dest_data)
+       return;
+
+    // Copy basic structure first
+    maybe_non_aligned_memcpy(p_dest_data, p_src_data, sizeof(*p_src_data));
+
+    // Allocate buffer for request data if necessary
+    switch (event)
+    {
+        case BTA_GATTC_READ_CHAR_EVT:
+        case BTA_GATTC_READ_DESCR_EVT:
+
+            if (p_src_data->read.p_value != NULL)
+            {
+                p_dest_data->read.p_value = osi_malloc(sizeof(tBTA_GATT_UNFMT));
+
+                memcpy(p_dest_data->read.p_value, p_src_data->read.p_value,
+                       sizeof(tBTA_GATT_UNFMT));
+
+                // Allocate buffer for att value if necessary
+                if (p_src_data->read.p_value->len > 0 &&
+                    p_src_data->read.p_value->p_value != NULL) {
+                    p_dest_data->read.p_value->p_value =
+                        osi_malloc(p_src_data->read.p_value->len);
+                    memcpy(p_dest_data->read.p_value->p_value,
+                           p_src_data->read.p_value->p_value,
+                           p_src_data->read.p_value->len);
+                }
+            } else {
+                BTIF_TRACE_WARNING("%s :Src read.p_value ptr is NULL for event  0x%x",
+                                    __FUNCTION__, event);
+                p_dest_data->read.p_value = NULL;
+
+            }
+            break;
+
+        default:
+            break;
+    }
+}
+
+static void btapp_gattc_free_req_data(UINT16 event, tBTA_GATTC *p_data)
+{
+    switch (event)
+    {
+        case BTA_GATTC_READ_CHAR_EVT:
+        case BTA_GATTC_READ_DESCR_EVT:
+            if (p_data != NULL && p_data->read.p_value != NULL)
+            {
+                if (p_data->read.p_value->len > 0)
+                    osi_free_and_reset((void **)&p_data->read.p_value->p_value);
+
+                osi_free_and_reset((void **)&p_data->read.p_value);
+            }
+            break;
+
+        default:
+            break;
+    }
+}
+
+static void btif_gattc_init_dev_cb(void)
+{
+    memset(p_dev_cb, 0, sizeof(btif_gattc_dev_cb_t));
+}
+
+static void btif_gattc_add_remote_bdaddr (BD_ADDR p_bda, uint8_t addr_type)
+{
+    uint8_t i;
+    for (i = 0; i < BTIF_GATT_MAX_OBSERVED_DEV; i++)
+    {
+        if (!p_dev_cb->remote_dev[i].in_use )
+        {
+            memcpy(p_dev_cb->remote_dev[i].bd_addr.address, p_bda, BD_ADDR_LEN);
+            p_dev_cb->addr_type = addr_type;
+            p_dev_cb->remote_dev[i].in_use = TRUE;
+            LOG_VERBOSE(LOG_TAG, "%s device added idx=%d", __FUNCTION__, i  );
+            break;
+        }
+    }
+
+    if ( i == BTIF_GATT_MAX_OBSERVED_DEV)
+    {
+        i= p_dev_cb->next_storage_idx;
+        memcpy(p_dev_cb->remote_dev[i].bd_addr.address, p_bda, BD_ADDR_LEN);
+        p_dev_cb->addr_type = addr_type;
+        p_dev_cb->remote_dev[i].in_use = TRUE;
+        LOG_VERBOSE(LOG_TAG, "%s device overwrite idx=%d", __FUNCTION__, i  );
+        p_dev_cb->next_storage_idx++;
+        if (p_dev_cb->next_storage_idx >= BTIF_GATT_MAX_OBSERVED_DEV)
+               p_dev_cb->next_storage_idx = 0;
+    }
+}
+
+static BOOLEAN btif_gattc_find_bdaddr (BD_ADDR p_bda)
+{
+    uint8_t i;
+    for (i = 0; i < BTIF_GATT_MAX_OBSERVED_DEV; i++)
+    {
+        if (p_dev_cb->remote_dev[i].in_use &&
+            !memcmp(p_dev_cb->remote_dev[i].bd_addr.address, p_bda, BD_ADDR_LEN))
+        {
+            return TRUE;
+        }
+    }
+    return FALSE;
+}
+
+static void btif_gattc_update_properties ( btif_gattc_cb_t *p_btif_cb )
+{
+    uint8_t remote_name_len;
+    uint8_t *p_eir_remote_name=NULL;
+    bt_bdname_t bdname;
+
+    p_eir_remote_name = BTM_CheckEirData(p_btif_cb->value,
+                                         BTM_EIR_COMPLETE_LOCAL_NAME_TYPE, &remote_name_len);
+
+    if (p_eir_remote_name == NULL)
+    {
+        p_eir_remote_name = BTM_CheckEirData(p_btif_cb->value,
+                                BT_EIR_SHORTENED_LOCAL_NAME_TYPE, &remote_name_len);
+    }
+
+    if (p_eir_remote_name)
+    {
+        memcpy(bdname.name, p_eir_remote_name, remote_name_len);
+        bdname.name[remote_name_len]='\0';
+
+        LOG_VERBOSE(LOG_TAG, "%s BLE device name=%s len=%d dev_type=%d", __FUNCTION__, bdname.name,
+              remote_name_len, p_btif_cb->device_type  );
+        btif_dm_update_ble_remote_properties( p_btif_cb->bd_addr.address,   bdname.name,
+                                               p_btif_cb->device_type);
+    }
+}
+
+static void btif_gattc_upstreams_evt(uint16_t event, char* p_param)
+{
+    LOG_VERBOSE(LOG_TAG, "%s: Event %d", __FUNCTION__, event);
+
+    tBTA_GATTC *p_data = (tBTA_GATTC*) p_param;
+    switch (event)
+    {
+        case BTA_GATTC_REG_EVT:
+        {
+            bt_uuid_t app_uuid;
+            bta_to_btif_uuid(&app_uuid, &p_data->reg_oper.app_uuid);
+            HAL_CBACK(bt_gatt_callbacks, client->register_client_cb
+                , p_data->reg_oper.status
+                , p_data->reg_oper.client_if
+                , &app_uuid
+            );
+            break;
+        }
+
+        case BTA_GATTC_DEREG_EVT:
+            break;
+
+        case BTA_GATTC_READ_CHAR_EVT:
+        {
+            btgatt_read_params_t data;
+            set_read_value(&data, &p_data->read);
+
+            HAL_CBACK(bt_gatt_callbacks, client->read_characteristic_cb
+                , p_data->read.conn_id, p_data->read.status, &data);
+            break;
+        }
+
+        case BTA_GATTC_WRITE_CHAR_EVT:
+        case BTA_GATTC_PREP_WRITE_EVT:
+        {
+            HAL_CBACK(bt_gatt_callbacks, client->write_characteristic_cb,
+                p_data->write.conn_id, p_data->write.status, p_data->write.handle);
+            break;
+        }
+
+        case BTA_GATTC_EXEC_EVT:
+        {
+            HAL_CBACK(bt_gatt_callbacks, client->execute_write_cb
+                , p_data->exec_cmpl.conn_id, p_data->exec_cmpl.status
+            );
+            break;
+        }
+
+        case BTA_GATTC_SEARCH_CMPL_EVT:
+        {
+            HAL_CBACK(bt_gatt_callbacks, client->search_complete_cb
+                , p_data->search_cmpl.conn_id, p_data->search_cmpl.status);
+            break;
+        }
+
+        case BTA_GATTC_READ_DESCR_EVT:
+        {
+            btgatt_read_params_t data;
+            set_read_value(&data, &p_data->read);
+
+            HAL_CBACK(bt_gatt_callbacks, client->read_descriptor_cb
+                , p_data->read.conn_id, p_data->read.status, &data);
+            break;
+        }
+
+        case BTA_GATTC_WRITE_DESCR_EVT:
+        {
+            HAL_CBACK(bt_gatt_callbacks, client->write_descriptor_cb,
+                p_data->write.conn_id, p_data->write.status, p_data->write.handle);
+            break;
+        }
+
+        case BTA_GATTC_NOTIF_EVT:
+        {
+            btgatt_notify_params_t data;
+
+            bdcpy(data.bda.address, p_data->notify.bda);
+            memcpy(data.value, p_data->notify.value, p_data->notify.len);
+
+            data.handle = p_data->notify.handle;
+            data.is_notify = p_data->notify.is_notify;
+            data.len = p_data->notify.len;
+
+            HAL_CBACK(bt_gatt_callbacks, client->notify_cb, p_data->notify.conn_id, &data);
+
+            if (p_data->notify.is_notify == FALSE)
+                BTA_GATTC_SendIndConfirm(p_data->notify.conn_id, p_data->notify.handle);
+
+            break;
+        }
+
+        case BTA_GATTC_OPEN_EVT:
+        {
+            bt_bdaddr_t bda;
+            bdcpy(bda.address, p_data->open.remote_bda);
+
+            HAL_CBACK(bt_gatt_callbacks, client->open_cb, p_data->open.conn_id
+                , p_data->open.status, p_data->open.client_if, &bda);
+
+            if (GATT_DEF_BLE_MTU_SIZE != p_data->open.mtu && p_data->open.mtu)
+            {
+                HAL_CBACK(bt_gatt_callbacks, client->configure_mtu_cb, p_data->open.conn_id
+                    , p_data->open.status , p_data->open.mtu);
+            }
+
+            if (p_data->open.status == BTA_GATT_OK)
+                btif_gatt_check_encrypted_link(p_data->open.remote_bda, p_data->open.transport);
+            break;
+        }
+
+        case BTA_GATTC_CLOSE_EVT:
+        {
+            bt_bdaddr_t bda;
+            bdcpy(bda.address, p_data->close.remote_bda);
+            HAL_CBACK(bt_gatt_callbacks, client->close_cb, p_data->close.conn_id
+                , p_data->status, p_data->close.client_if, &bda);
+            break;
+        }
+
+        case BTA_GATTC_ACL_EVT:
+            LOG_DEBUG(LOG_TAG, "BTA_GATTC_ACL_EVT: status = %d", p_data->status);
+            /* Ignore for now */
+            break;
+
+        case BTA_GATTC_CANCEL_OPEN_EVT:
+            break;
+
+        case BTIF_GATT_OBSERVE_EVT:
+        {
+            btif_gattc_cb_t *p_btif_cb = (btif_gattc_cb_t*) p_param;
+            uint8_t remote_name_len;
+            uint8_t *p_eir_remote_name=NULL;
+            bt_device_type_t dev_type;
+            bt_property_t properties;
+
+            p_eir_remote_name = BTM_CheckEirData(p_btif_cb->value,
+                                         BTM_EIR_COMPLETE_LOCAL_NAME_TYPE, &remote_name_len);
+
+            if (p_eir_remote_name == NULL)
+            {
+                p_eir_remote_name = BTM_CheckEirData(p_btif_cb->value,
+                                BT_EIR_SHORTENED_LOCAL_NAME_TYPE, &remote_name_len);
+            }
+
+            if ((p_btif_cb->addr_type != BLE_ADDR_RANDOM) || (p_eir_remote_name))
+            {
+               if (!btif_gattc_find_bdaddr(p_btif_cb->bd_addr.address))
+               {
+                  btif_gattc_add_remote_bdaddr(p_btif_cb->bd_addr.address, p_btif_cb->addr_type);
+                  btif_gattc_update_properties(p_btif_cb);
+               }
+            }
+
+             dev_type =  p_btif_cb->device_type;
+             BTIF_STORAGE_FILL_PROPERTY(&properties,
+                        BT_PROPERTY_TYPE_OF_DEVICE, sizeof(dev_type), &dev_type);
+             btif_storage_set_remote_device_property(&(p_btif_cb->bd_addr), &properties);
+
+            btif_storage_set_remote_addr_type( &p_btif_cb->bd_addr, p_btif_cb->addr_type);
+
+            HAL_CBACK(bt_gatt_callbacks, client->scan_result_cb,
+                      &p_btif_cb->bd_addr, p_btif_cb->rssi, p_btif_cb->value);
+            break;
+        }
+
+        case BTIF_GATTC_RSSI_EVT:
+        {
+            btif_gattc_cb_t *p_btif_cb = (btif_gattc_cb_t*) p_param;
+            HAL_CBACK(bt_gatt_callbacks, client->read_remote_rssi_cb, p_btif_cb->client_if,
+                      &p_btif_cb->bd_addr, p_btif_cb->rssi, p_btif_cb->status);
+            break;
+        }
+
+        case BTA_GATTC_LISTEN_EVT:
+        {
+            HAL_CBACK(bt_gatt_callbacks, client->listen_cb
+                , p_data->reg_oper.status
+                , p_data->reg_oper.client_if
+            );
+            break;
+        }
+
+        case BTA_GATTC_CFG_MTU_EVT:
+        {
+            HAL_CBACK(bt_gatt_callbacks, client->configure_mtu_cb, p_data->cfg_mtu.conn_id
+                , p_data->cfg_mtu.status , p_data->cfg_mtu.mtu);
+            break;
+        }
+
+        case BTA_GATTC_MULT_ADV_ENB_EVT:
+        {
+            btif_gattc_cb_t *p_btif_cb = (btif_gattc_cb_t*) p_param;
+            if (0xFF != p_btif_cb->inst_id)
+                btif_multi_adv_add_instid_map(p_btif_cb->client_if, p_btif_cb->inst_id, false);
+            HAL_CBACK(bt_gatt_callbacks, client->multi_adv_enable_cb
+                    , p_btif_cb->client_if
+                    , p_btif_cb->status
+                );
+            btif_multi_adv_timer_ctrl(p_btif_cb->client_if,
+                                      (p_btif_cb->status == BTA_GATT_OK) ?
+                                      btif_multi_adv_stop_cb : NULL);
+            break;
+        }
+
+        case BTA_GATTC_MULT_ADV_UPD_EVT:
+        {
+            btif_gattc_cb_t *p_btif_cb = (btif_gattc_cb_t*) p_param;
+            HAL_CBACK(bt_gatt_callbacks, client->multi_adv_update_cb
+                , p_btif_cb->client_if
+                , p_btif_cb->status
+            );
+            btif_multi_adv_timer_ctrl(p_btif_cb->client_if,
+                                      (p_btif_cb->status == BTA_GATT_OK) ?
+                                      btif_multi_adv_stop_cb : NULL);
+            break;
+        }
+
+        case BTA_GATTC_MULT_ADV_DATA_EVT:
+         {
+            btif_gattc_cb_t *p_btif_cb = (btif_gattc_cb_t*) p_param;
+            btif_gattc_clear_clientif(p_btif_cb->client_if, FALSE);
+            HAL_CBACK(bt_gatt_callbacks, client->multi_adv_data_cb
+                , p_btif_cb->client_if
+                , p_btif_cb->status
+            );
+            break;
+        }
+
+        case BTA_GATTC_MULT_ADV_DIS_EVT:
+        {
+            btif_gattc_cb_t *p_btif_cb = (btif_gattc_cb_t*) p_param;
+            btif_gattc_clear_clientif(p_btif_cb->client_if, TRUE);
+            HAL_CBACK(bt_gatt_callbacks, client->multi_adv_disable_cb
+                , p_btif_cb->client_if
+                , p_btif_cb->status
+            );
+            break;
+        }
+
+        case BTA_GATTC_ADV_DATA_EVT:
+        {
+            btif_gattc_cleanup_inst_cb(STD_ADV_INSTID, FALSE);
+            /* No HAL callback available */
+            break;
+        }
+
+        case BTA_GATTC_CONGEST_EVT:
+            HAL_CBACK(bt_gatt_callbacks, client->congestion_cb
+                , p_data->congest.conn_id
+                , p_data->congest.congested
+            );
+            break;
+
+        case BTA_GATTC_BTH_SCAN_CFG_EVT:
+        {
+            btgatt_batch_track_cb_t *p_data = (btgatt_batch_track_cb_t*) p_param;
+            HAL_CBACK(bt_gatt_callbacks, client->batchscan_cfg_storage_cb
+                , p_data->client_if
+                , p_data->status
+            );
+            break;
+        }
+
+        case BTA_GATTC_BTH_SCAN_ENB_EVT:
+        {
+            btgatt_batch_track_cb_t *p_data = (btgatt_batch_track_cb_t*) p_param;
+            HAL_CBACK(bt_gatt_callbacks, client->batchscan_enb_disable_cb
+                    , ENABLE_BATCH_SCAN
+                    , p_data->client_if
+                    , p_data->status);
+            break;
+        }
+
+        case BTA_GATTC_BTH_SCAN_DIS_EVT:
+        {
+            btgatt_batch_track_cb_t *p_data = (btgatt_batch_track_cb_t*) p_param;
+            HAL_CBACK(bt_gatt_callbacks, client->batchscan_enb_disable_cb
+                    , DISABLE_BATCH_SCAN
+                    , p_data->client_if
+                    , p_data->status);
+            break;
+        }
+
+        case BTA_GATTC_BTH_SCAN_THR_EVT:
+        {
+            btgatt_batch_track_cb_t *p_data = (btgatt_batch_track_cb_t*) p_param;
+            HAL_CBACK(bt_gatt_callbacks, client->batchscan_threshold_cb
+                    , p_data->client_if);
+            break;
+        }
+
+        case BTA_GATTC_BTH_SCAN_RD_EVT:
+        {
+            btgatt_batch_track_cb_t *p_data = (btgatt_batch_track_cb_t*) p_param;
+            uint8_t *p_rep_data = NULL;
+
+            if (p_data->read_reports.data_len > 0 && NULL != p_data->read_reports.p_rep_data)
+            {
+                p_rep_data = osi_malloc(p_data->read_reports.data_len);
+                memcpy(p_rep_data, p_data->read_reports.p_rep_data, p_data->read_reports.data_len);
+            }
+
+            HAL_CBACK(bt_gatt_callbacks, client->batchscan_reports_cb
+                    , p_data->client_if, p_data->status, p_data->read_reports.report_format
+                    , p_data->read_reports.num_records, p_data->read_reports.data_len, p_rep_data);
+            osi_free(p_rep_data);
+            break;
+        }
+
+        case BTA_GATTC_SCAN_FLT_CFG_EVT:
+        {
+            btgatt_adv_filter_cb_t *p_btif_cb = (btgatt_adv_filter_cb_t*) p_param;
+            HAL_CBACK(bt_gatt_callbacks, client->scan_filter_cfg_cb, p_btif_cb->action,
+                      p_btif_cb->client_if, p_btif_cb->status, p_btif_cb->cond_op,
+                      p_btif_cb->avbl_space);
+            break;
+        }
+
+        case BTA_GATTC_SCAN_FLT_PARAM_EVT:
+        {
+            btgatt_adv_filter_cb_t *p_data = (btgatt_adv_filter_cb_t*) p_param;
+            BTIF_TRACE_DEBUG("BTA_GATTC_SCAN_FLT_PARAM_EVT: %d, %d, %d, %d",p_data->client_if,
+                p_data->action, p_data->avbl_space, p_data->status);
+            HAL_CBACK(bt_gatt_callbacks, client->scan_filter_param_cb
+                    , p_data->action, p_data->client_if, p_data->status
+                    , p_data->avbl_space);
+            break;
+        }
+
+        case BTA_GATTC_SCAN_FLT_STATUS_EVT:
+        {
+            btgatt_adv_filter_cb_t *p_data = (btgatt_adv_filter_cb_t*) p_param;
+            BTIF_TRACE_DEBUG("BTA_GATTC_SCAN_FLT_STATUS_EVT: %d, %d, %d",p_data->client_if,
+                p_data->action, p_data->status);
+            HAL_CBACK(bt_gatt_callbacks, client->scan_filter_status_cb
+                    , p_data->action, p_data->client_if, p_data->status);
+            break;
+        }
+
+        case BTA_GATTC_ADV_VSC_EVT:
+        {
+            btgatt_track_adv_info_t *p_data = (btgatt_track_adv_info_t*)p_param;
+            btgatt_track_adv_info_t adv_info_data;
+
+            memset(&adv_info_data, 0, sizeof(btgatt_track_adv_info_t));
+
+            btif_gatt_move_track_adv_data(&adv_info_data, p_data);
+            HAL_CBACK(bt_gatt_callbacks, client->track_adv_event_cb, &adv_info_data);
+            break;
+        }
+
+        case BTIF_GATTC_SCAN_PARAM_EVT:
+        {
+            btif_gattc_cb_t *p_btif_cb = (btif_gattc_cb_t *)p_param;
+            HAL_CBACK(bt_gatt_callbacks, client->scan_parameter_setup_completed_cb,
+                      p_btif_cb->client_if, btif_gattc_translate_btm_status(p_btif_cb->status));
+            break;
+        }
+
+        default:
+            LOG_ERROR(LOG_TAG, "%s: Unhandled event (%d)!", __FUNCTION__, event);
+            break;
+    }
+
+    btapp_gattc_free_req_data(event, p_data);
+}
+
+static void bta_gattc_cback(tBTA_GATTC_EVT event, tBTA_GATTC *p_data)
+{
+    bt_status_t status = btif_transfer_context(btif_gattc_upstreams_evt,
+                    (uint16_t) event, (void*) p_data, sizeof(tBTA_GATTC), btapp_gattc_req_data);
+    ASSERTC(status == BT_STATUS_SUCCESS, "Context transfer failed!", status);
+}
+
+static void bta_gattc_multi_adv_cback(tBTA_BLE_MULTI_ADV_EVT event, UINT8 inst_id,
+                                    void *p_ref, tBTA_STATUS call_status)
+{
+    btif_gattc_cb_t btif_cb;
+    tBTA_GATTC_EVT upevt;
+    uint8_t client_if = 0;
+
+    if (NULL == p_ref)
+    {
+        BTIF_TRACE_WARNING("%s Invalid p_ref received",__FUNCTION__);
+    }
+    else
+    {
+        client_if = *(UINT8 *) p_ref;
+    }
+
+    BTIF_TRACE_DEBUG("%s -Inst ID %d, Status:%x, client_if:%d",__FUNCTION__,inst_id, call_status,
+                       client_if);
+    btif_cb.status = call_status;
+    btif_cb.client_if = client_if;
+    btif_cb.inst_id = inst_id;
+
+    switch(event)
+    {
+        case BTA_BLE_MULTI_ADV_ENB_EVT:
+            upevt = BTA_GATTC_MULT_ADV_ENB_EVT;
+            break;
+
+        case BTA_BLE_MULTI_ADV_DISABLE_EVT:
+            upevt = BTA_GATTC_MULT_ADV_DIS_EVT;
+            break;
+
+        case BTA_BLE_MULTI_ADV_PARAM_EVT:
+            upevt = BTA_GATTC_MULT_ADV_UPD_EVT;
+            break;
+
+        case BTA_BLE_MULTI_ADV_DATA_EVT:
+            upevt = BTA_GATTC_MULT_ADV_DATA_EVT;
+            break;
+
+        default:
+            return;
+    }
+
+    bt_status_t status = btif_transfer_context(btif_gattc_upstreams_evt, (uint16_t) upevt,
+                        (char*) &btif_cb, sizeof(btif_gattc_cb_t), NULL);
+    ASSERTC(status == BT_STATUS_SUCCESS, "Context transfer failed!", status);
+}
+
+static void bta_gattc_set_adv_data_cback(tBTA_STATUS call_status)
+{
+    UNUSED(call_status);
+    btif_gattc_cb_t btif_cb;
+    btif_cb.status = call_status;
+    btif_cb.action = 0;
+    btif_transfer_context(btif_gattc_upstreams_evt, BTA_GATTC_ADV_DATA_EVT,
+                          (char*) &btif_cb, sizeof(btif_gattc_cb_t), NULL);
+}
+
+static void bta_batch_scan_setup_cb (tBTA_BLE_BATCH_SCAN_EVT evt,
+                                            tBTA_DM_BLE_REF_VALUE ref_value, tBTA_STATUS status)
+{
+    UINT8 upevt = 0;
+    btgatt_batch_track_cb_t btif_scan_track_cb;
+
+    btif_scan_track_cb.status = status;
+    btif_scan_track_cb.client_if = ref_value;
+    BTIF_TRACE_DEBUG("bta_batch_scan_setup_cb-Status:%x, client_if:%d, evt=%d",
+            status, ref_value, evt);
+
+    switch(evt)
+    {
+        case BTA_BLE_BATCH_SCAN_ENB_EVT:
+        {
+           upevt = BTA_GATTC_BTH_SCAN_ENB_EVT;
+           break;
+        }
+
+        case BTA_BLE_BATCH_SCAN_DIS_EVT:
+        {
+           upevt = BTA_GATTC_BTH_SCAN_DIS_EVT;
+           break;
+        }
+
+        case BTA_BLE_BATCH_SCAN_CFG_STRG_EVT:
+        {
+           upevt = BTA_GATTC_BTH_SCAN_CFG_EVT;
+           break;
+        }
+
+        case BTA_BLE_BATCH_SCAN_DATA_EVT:
+        {
+           upevt = BTA_GATTC_BTH_SCAN_RD_EVT;
+           break;
+        }
+
+        case BTA_BLE_BATCH_SCAN_THRES_EVT:
+        {
+           upevt = BTA_GATTC_BTH_SCAN_THR_EVT;
+           break;
+        }
+
+        default:
+            return;
+    }
+
+    btif_transfer_context(btif_gattc_upstreams_evt, upevt,(char*) &btif_scan_track_cb,
+                          sizeof(btgatt_batch_track_cb_t), NULL);
+
+}
+
+static void bta_batch_scan_threshold_cb(tBTA_DM_BLE_REF_VALUE ref_value)
+{
+    btgatt_batch_track_cb_t btif_scan_track_cb;
+    btif_scan_track_cb.status = 0;
+    btif_scan_track_cb.client_if = ref_value;
+
+    BTIF_TRACE_DEBUG("%s - client_if:%d",__FUNCTION__, ref_value);
+
+    btif_transfer_context(btif_gattc_upstreams_evt, BTA_GATTC_BTH_SCAN_THR_EVT,
+                          (char*) &btif_scan_track_cb, sizeof(btif_gattc_cb_t), NULL);
+}
+
+static void bta_batch_scan_reports_cb(tBTA_DM_BLE_REF_VALUE ref_value, UINT8 report_format,
+                                            UINT8 num_records, UINT16 data_len,
+                                            UINT8* p_rep_data, tBTA_STATUS status)
+{
+    btgatt_batch_track_cb_t btif_scan_track_cb;
+    memset(&btif_scan_track_cb, 0, sizeof(btgatt_batch_track_cb_t));
+    BTIF_TRACE_DEBUG("%s - client_if:%d, %d, %d, %d",__FUNCTION__, ref_value, status, num_records,
+                                    data_len);
+
+    btif_scan_track_cb.status = status;
+
+    btif_scan_track_cb.client_if = ref_value;
+    btif_scan_track_cb.read_reports.report_format = report_format;
+    btif_scan_track_cb.read_reports.data_len = data_len;
+    btif_scan_track_cb.read_reports.num_records = num_records;
+
+    if (data_len > 0)
+    {
+        btif_scan_track_cb.read_reports.p_rep_data = osi_malloc(data_len);
+        memcpy(btif_scan_track_cb.read_reports.p_rep_data, p_rep_data, data_len);
+        osi_free(p_rep_data);
+    }
+
+    btif_transfer_context(btif_gattc_upstreams_evt, BTA_GATTC_BTH_SCAN_RD_EVT,
+        (char*) &btif_scan_track_cb, sizeof(btgatt_batch_track_cb_t), NULL);
+
+    if (data_len > 0)
+        osi_free_and_reset((void **)&btif_scan_track_cb.read_reports.p_rep_data);
+}
+
+static void bta_scan_results_cb (tBTA_DM_SEARCH_EVT event, tBTA_DM_SEARCH *p_data)
+{
+    btif_gattc_cb_t btif_cb;
+    uint8_t len;
+
+    switch (event)
+    {
+        case BTA_DM_INQ_RES_EVT:
+        {
+            bdcpy(btif_cb.bd_addr.address, p_data->inq_res.bd_addr);
+            btif_cb.device_type = p_data->inq_res.device_type;
+            btif_cb.rssi = p_data->inq_res.rssi;
+            btif_cb.addr_type = p_data->inq_res.ble_addr_type;
+            btif_cb.flag = p_data->inq_res.flag;
+            if (p_data->inq_res.p_eir)
+            {
+                memcpy(btif_cb.value, p_data->inq_res.p_eir, 62);
+                if (BTM_CheckEirData(p_data->inq_res.p_eir, BTM_EIR_COMPLETE_LOCAL_NAME_TYPE,
+                                      &len))
+                {
+                    p_data->inq_res.remt_name_not_required  = TRUE;
+                }
+            }
+#ifdef BLUETOOTH_RTK
+            bt_property_t properties;
+            uint32_t num_properties = 0;
+            bt_status_t status;
+            UINT32 cod;
+            cod = devclass2uint (p_data->inq_res.dev_class);
+            /* DEV_CLASS */
+            BTIF_STORAGE_FILL_PROPERTY(&properties,
+                                    BT_PROPERTY_CLASS_OF_DEVICE, sizeof(cod), &cod);
+
+            num_properties++;
+
+            status = btif_storage_add_remote_device(&btif_cb.bd_addr, num_properties, &properties);
+            ASSERTC(status == BT_STATUS_SUCCESS, "failed to save remote device (inquiry)", status);
+#if (defined(BLE_INCLUDED) && (BLE_INCLUDED == TRUE))
+            status = btif_storage_set_remote_addr_type(&btif_cb.bd_addr, btif_cb.addr_type);
+            ASSERTC(status == BT_STATUS_SUCCESS, "failed to save remote addr type (inquiry)", status);
+#endif
+#endif
+        }
+        break;
+
+        case BTA_DM_INQ_CMPL_EVT:
+        {
+            BTIF_TRACE_DEBUG("%s  BLE observe complete. Num Resp %d",
+                              __FUNCTION__,p_data->inq_cmpl.num_resps);
+            return;
+        }
+
+        default:
+        BTIF_TRACE_WARNING("%s : Unknown event 0x%x", __FUNCTION__, event);
+        return;
+    }
+    btif_transfer_context(btif_gattc_upstreams_evt, BTIF_GATT_OBSERVE_EVT,
+                                 (char*) &btif_cb, sizeof(btif_gattc_cb_t), NULL);
+}
+
+static void bta_track_adv_event_cb(tBTA_DM_BLE_TRACK_ADV_DATA *p_track_adv_data)
+{
+    btgatt_track_adv_info_t btif_scan_track_cb;
+    BTIF_TRACE_DEBUG("%s",__FUNCTION__);
+    btif_gatt_move_track_adv_data(&btif_scan_track_cb,
+                (btgatt_track_adv_info_t*)p_track_adv_data);
+
+    btif_transfer_context(btif_gattc_upstreams_evt, BTA_GATTC_ADV_VSC_EVT,
+                          (char*) &btif_scan_track_cb, sizeof(btgatt_track_adv_info_t), NULL);
+}
+
+static void btm_read_rssi_cb (tBTM_RSSI_RESULTS *p_result)
+{
+    btif_gattc_cb_t btif_cb;
+
+    bdcpy(btif_cb.bd_addr.address, p_result->rem_bda);
+    btif_cb.rssi = p_result->rssi;
+    btif_cb.status = p_result->status;
+    btif_cb.client_if = rssi_request_client_if;
+    btif_transfer_context(btif_gattc_upstreams_evt, BTIF_GATTC_RSSI_EVT,
+                                 (char*) &btif_cb, sizeof(btif_gattc_cb_t), NULL);
+}
+
+static void bta_scan_param_setup_cb(tGATT_IF client_if, tBTM_STATUS status)
+{
+    btif_gattc_cb_t btif_cb;
+
+    btif_cb.status = status;
+    btif_cb.client_if = client_if;
+    btif_transfer_context(btif_gattc_upstreams_evt, BTIF_GATTC_SCAN_PARAM_EVT,
+                          (char *)&btif_cb, sizeof(btif_gattc_cb_t), NULL);
+}
+
+static void bta_scan_filt_cfg_cb(tBTA_DM_BLE_PF_ACTION action, tBTA_DM_BLE_SCAN_COND_OP cfg_op,
+                                tBTA_DM_BLE_PF_AVBL_SPACE avbl_space, tBTA_STATUS status,
+                                tBTA_DM_BLE_REF_VALUE ref_value)
+{
+    btgatt_adv_filter_cb_t btif_cb;
+    btif_cb.status = status;
+    btif_cb.action = action;
+    btif_cb.cond_op = cfg_op;
+    btif_cb.avbl_space = avbl_space;
+    btif_cb.client_if = ref_value;
+    btif_transfer_context(btif_gattc_upstreams_evt, BTA_GATTC_SCAN_FLT_CFG_EVT,
+                          (char*) &btif_cb, sizeof(btgatt_adv_filter_cb_t), NULL);
+}
+
+static void bta_scan_filt_param_setup_cb(UINT8 action_type,
+                                        tBTA_DM_BLE_PF_AVBL_SPACE avbl_space,
+                                        tBTA_DM_BLE_REF_VALUE ref_value, tBTA_STATUS status)
+{
+    btgatt_adv_filter_cb_t btif_cb;
+
+    btif_cb.status = status;
+    btif_cb.action = action_type;
+    btif_cb.client_if = ref_value;
+    btif_cb.avbl_space = avbl_space;
+    btif_transfer_context(btif_gattc_upstreams_evt, BTA_GATTC_SCAN_FLT_PARAM_EVT,
+                          (char*) &btif_cb, sizeof(btgatt_adv_filter_cb_t), NULL);
+}
+
+static void bta_scan_filt_status_cb(UINT8 action, tBTA_STATUS status,
+                                    tBTA_DM_BLE_REF_VALUE ref_value)
+{
+    btgatt_adv_filter_cb_t btif_cb;
+
+    btif_cb.status = status;
+    btif_cb.action = action;
+    btif_cb.client_if = ref_value;
+    btif_transfer_context(btif_gattc_upstreams_evt, BTA_GATTC_SCAN_FLT_STATUS_EVT,
+                          (char*) &btif_cb, sizeof(btgatt_adv_filter_cb_t), NULL);
+}
+
+static void btgattc_free_event_data(UINT16 event, char *event_data)
+{
+    switch (event)
+    {
+        case BTIF_GATTC_ADV_INSTANCE_SET_DATA:
+        case BTIF_GATTC_SET_ADV_DATA:
+        {
+            btif_adv_data_t *adv_data = (btif_adv_data_t *)event_data;
+            btif_gattc_adv_data_cleanup(adv_data);
+            break;
+        }
+
+        default:
+            break;
+    }
+}
+
+static void btgattc_handle_event(uint16_t event, char* p_param)
+{
+    tBTA_GATT_STATUS           status;
+    tBT_UUID                   uuid;
+    tBTA_GATT_UNFMT            descr_val;
+
+    btif_gattc_cb_t* p_cb = (btif_gattc_cb_t*) p_param;
+    if (!p_cb) return;
+
+    LOG_VERBOSE(LOG_TAG, "%s: Event %d", __FUNCTION__, event);
+
+    switch (event)
+    {
+        case BTIF_GATTC_REGISTER_APP:
+            btif_to_bta_uuid(&uuid, &p_cb->uuid);
+            btif_gattc_incr_app_count();
+            BTA_GATTC_AppRegister(&uuid, bta_gattc_cback);
+            break;
+
+        case BTIF_GATTC_UNREGISTER_APP:
+            btif_gattc_clear_clientif(p_cb->client_if, TRUE);
+            btif_gattc_decr_app_count();
+            BTA_GATTC_AppDeregister(p_cb->client_if);
+            break;
+
+        case BTIF_GATTC_SCAN_START:
+            btif_gattc_init_dev_cb();
+            BTA_DmBleObserve(TRUE, 0, bta_scan_results_cb);
+            break;
+
+        case BTIF_GATTC_SCAN_STOP:
+            BTA_DmBleObserve(FALSE, 0, 0);
+            break;
+
+        case BTIF_GATTC_OPEN:
+        {
+            // Ensure device is in inquiry database
+            int addr_type = 0;
+            int device_type = 0;
+            tBTA_GATT_TRANSPORT transport = BTA_GATT_TRANSPORT_LE;
+
+            if (btif_get_address_type(p_cb->bd_addr.address, &addr_type) &&
+                btif_get_device_type(p_cb->bd_addr.address, &device_type) &&
+                device_type != BT_DEVICE_TYPE_BREDR)
+            {
+                BTA_DmAddBleDevice(p_cb->bd_addr.address, addr_type, device_type);
+            }
+
+            // Check for background connections
+            if (!p_cb->is_direct)
+            {
+                // Check for privacy 1.0 and 1.1 controller and do not start background
+                // connection if RPA offloading is not supported, since it will not
+                // connect after change of random address
+                if (!controller_get_interface()->supports_ble_privacy() &&
+                   (p_cb->addr_type == BLE_ADDR_RANDOM) &&
+                   BTM_BLE_IS_RESOLVE_BDA(p_cb->bd_addr.address))
+                {
+                    tBTM_BLE_VSC_CB vnd_capabilities;
+                    BTM_BleGetVendorCapabilities(&vnd_capabilities);
+                    if (!vnd_capabilities.rpa_offloading)
+                    {
+                        HAL_CBACK(bt_gatt_callbacks, client->open_cb, 0, BT_STATUS_UNSUPPORTED,
+                                        p_cb->client_if, &p_cb->bd_addr);
+                        return;
+                    }
+                }
+                BTA_DmBleSetBgConnType(BTM_BLE_CONN_AUTO, NULL);
+            }
+
+            // Determine transport
+            if (p_cb->transport != GATT_TRANSPORT_AUTO)
+            {
+                transport = p_cb->transport;
+            } else {
+                switch(device_type)
+                {
+                    case BT_DEVICE_TYPE_BREDR:
+                        transport = BTA_GATT_TRANSPORT_BR_EDR;
+                        break;
+
+                    case BT_DEVICE_TYPE_BLE:
+                        transport = BTA_GATT_TRANSPORT_LE;
+                        break;
+
+                    case BT_DEVICE_TYPE_DUMO:
+                        if (p_cb->transport == GATT_TRANSPORT_LE)
+                            transport = BTA_GATT_TRANSPORT_LE;
+                        else
+                            transport = BTA_GATT_TRANSPORT_BR_EDR;
+                        break;
+                }
+            }
+
+            // Connect!
+            BTIF_TRACE_DEBUG ("%s Transport=%d, device type=%d",
+                                __func__, transport, device_type);
+            BTA_GATTC_Open(p_cb->client_if, p_cb->bd_addr.address, p_cb->is_direct, transport);
+            break;
+        }
+
+        case BTIF_GATTC_CLOSE:
+            // Disconnect established connections
+            if (p_cb->conn_id != 0)
+                BTA_GATTC_Close(p_cb->conn_id);
+            else
+                BTA_GATTC_CancelOpen(p_cb->client_if, p_cb->bd_addr.address, TRUE);
+
+            // Cancel pending background connections (remove from whitelist)
+            BTA_GATTC_CancelOpen(p_cb->client_if, p_cb->bd_addr.address, FALSE);
+            break;
+
+        case BTIF_GATTC_SEARCH_SERVICE:
+        {
+            if (p_cb->search_all)
+            {
+                BTA_GATTC_ServiceSearchRequest(p_cb->conn_id, NULL);
+            } else {
+                btif_to_bta_uuid(&uuid, &p_cb->uuid);
+                BTA_GATTC_ServiceSearchRequest(p_cb->conn_id, &uuid);
+            }
+            break;
+        }
+
+        case BTIF_GATTC_GET_GATT_DB:
+        {
+            btgatt_db_element_t *db = NULL;
+            int count = 0;
+            BTA_GATTC_GetGattDb(p_cb->conn_id, 0x0000, 0xFFFF, &db, &count);
+
+            HAL_CBACK(bt_gatt_callbacks, client->get_gatt_db_cb,
+                p_cb->conn_id, db, count);
+            osi_free(db);
+            break;
+        }
+
+        case BTIF_GATTC_READ_CHAR:
+            BTA_GATTC_ReadCharacteristic(p_cb->conn_id, p_cb->handle, p_cb->auth_req);
+            break;
+
+        case BTIF_GATTC_READ_CHAR_DESCR:
+            BTA_GATTC_ReadCharDescr(p_cb->conn_id, p_cb->handle, p_cb->auth_req);
+            break;
+
+        case BTIF_GATTC_WRITE_CHAR:
+            BTA_GATTC_WriteCharValue(p_cb->conn_id, p_cb->handle, p_cb->write_type,
+                                     p_cb->len, p_cb->value, p_cb->auth_req);
+            break;
+
+        case BTIF_GATTC_WRITE_CHAR_DESCR:
+            descr_val.len = p_cb->len;
+            descr_val.p_value = p_cb->value;
+
+            BTA_GATTC_WriteCharDescr(p_cb->conn_id, p_cb->handle,
+                                     p_cb->write_type, &descr_val,
+                                     p_cb->auth_req);
+            break;
+
+        case BTIF_GATTC_EXECUTE_WRITE:
+            BTA_GATTC_ExecuteWrite(p_cb->conn_id, p_cb->action);
+            break;
+
+        case BTIF_GATTC_REG_FOR_NOTIFICATION:
+            status = BTA_GATTC_RegisterForNotifications(p_cb->client_if,
+                                    p_cb->bd_addr.address, p_cb->handle);
+
+            HAL_CBACK(bt_gatt_callbacks, client->register_for_notification_cb,
+                p_cb->conn_id, 1, status, p_cb->handle);
+            break;
+
+        case BTIF_GATTC_DEREG_FOR_NOTIFICATION:
+            status = BTA_GATTC_DeregisterForNotifications(p_cb->client_if,
+                                        p_cb->bd_addr.address, p_cb->handle);
+
+            HAL_CBACK(bt_gatt_callbacks, client->register_for_notification_cb,
+                p_cb->conn_id, 0, status, p_cb->handle);
+            break;
+
+        case BTIF_GATTC_REFRESH:
+            BTA_GATTC_Refresh(p_cb->bd_addr.address);
+            break;
+
+        case BTIF_GATTC_READ_RSSI:
+            rssi_request_client_if = p_cb->client_if;
+            BTM_ReadRSSI (p_cb->bd_addr.address, (tBTM_CMPL_CB *)btm_read_rssi_cb);
+            break;
+
+        case BTIF_GATTC_SCAN_FILTER_PARAM_SETUP:
+        {
+            btgatt_adv_filter_cb_t *p_adv_filt_cb = (btgatt_adv_filter_cb_t *) p_param;
+            if (1 == p_adv_filt_cb->adv_filt_param.dely_mode)
+               BTA_DmBleTrackAdvertiser(p_adv_filt_cb->client_if, bta_track_adv_event_cb);
+            BTA_DmBleScanFilterSetup(p_adv_filt_cb->action, p_adv_filt_cb->filt_index,
+                &p_adv_filt_cb->adv_filt_param, NULL, bta_scan_filt_param_setup_cb,
+                p_adv_filt_cb->client_if);
+            break;
+        }
+
+        case BTIF_GATTC_SCAN_FILTER_CONFIG:
+        {
+            btgatt_adv_filter_cb_t *p_adv_filt_cb = (btgatt_adv_filter_cb_t *) p_param;
+            tBTA_DM_BLE_PF_COND_PARAM cond;
+            memset(&cond, 0, sizeof(cond));
+
+            switch (p_adv_filt_cb->filt_type)
+            {
+                case BTA_DM_BLE_PF_ADDR_FILTER: // 0
+                    bdcpy(cond.target_addr.bda, p_adv_filt_cb->bd_addr.address);
+                    cond.target_addr.type = p_adv_filt_cb->addr_type;
+                    BTA_DmBleCfgFilterCondition(p_adv_filt_cb->action,
+                                              p_adv_filt_cb->filt_type, p_adv_filt_cb->filt_index,
+                                              &cond, bta_scan_filt_cfg_cb,
+                                              p_adv_filt_cb->client_if);
+                    break;
+
+                case BTA_DM_BLE_PF_SRVC_DATA: // 1
+                    BTA_DmBleCfgFilterCondition(p_adv_filt_cb->action,
+                                            p_adv_filt_cb->filt_type, p_adv_filt_cb->filt_index,
+                                            NULL, bta_scan_filt_cfg_cb, p_adv_filt_cb->client_if);
+                    break;
+
+                case BTA_DM_BLE_PF_SRVC_UUID: // 2
+                {
+                    tBTA_DM_BLE_PF_COND_MASK uuid_mask;
+
+                    cond.srvc_uuid.p_target_addr = NULL;
+                    cond.srvc_uuid.cond_logic = BTA_DM_BLE_PF_LOGIC_AND;
+                    btif_to_bta_uuid(&cond.srvc_uuid.uuid, &p_adv_filt_cb->uuid);
+
+                    cond.srvc_uuid.p_uuid_mask = NULL;
+                    if (p_adv_filt_cb->has_mask)
+                    {
+                        btif_to_bta_uuid_mask(&uuid_mask, &p_adv_filt_cb->uuid_mask);
+                        cond.srvc_uuid.p_uuid_mask = &uuid_mask;
+                    }
+                    BTA_DmBleCfgFilterCondition(p_adv_filt_cb->action,
+                                              p_adv_filt_cb->filt_type, p_adv_filt_cb->filt_index,
+                                              &cond, bta_scan_filt_cfg_cb,
+                                              p_adv_filt_cb->client_if);
+                    break;
+                }
+
+                case BTA_DM_BLE_PF_SRVC_SOL_UUID: // 3
+                {
+                    cond.solicitate_uuid.p_target_addr = NULL;
+                    cond.solicitate_uuid.cond_logic = BTA_DM_BLE_PF_LOGIC_AND;
+                    btif_to_bta_uuid(&cond.solicitate_uuid.uuid, &p_adv_filt_cb->uuid);
+                    BTA_DmBleCfgFilterCondition(p_adv_filt_cb->action,
+                                              p_adv_filt_cb->filt_type, p_adv_filt_cb->filt_index,
+                                              &cond, bta_scan_filt_cfg_cb,
+                                              p_adv_filt_cb->client_if);
+                    break;
+                }
+
+                case BTA_DM_BLE_PF_LOCAL_NAME: // 4
+                {
+                    cond.local_name.data_len = p_adv_filt_cb->value_len;
+                    cond.local_name.p_data = p_adv_filt_cb->value;
+                    BTA_DmBleCfgFilterCondition(p_adv_filt_cb->action,
+                                              p_adv_filt_cb->filt_type, p_adv_filt_cb->filt_index,
+                                              &cond, bta_scan_filt_cfg_cb,
+                                              p_adv_filt_cb->client_if);
+                    break;
+                }
+
+                case BTA_DM_BLE_PF_MANU_DATA: // 5
+                {
+                    cond.manu_data.company_id = p_adv_filt_cb->conn_id;
+                    cond.manu_data.company_id_mask = p_adv_filt_cb->company_id_mask;
+                    cond.manu_data.data_len = p_adv_filt_cb->value_len;
+                    cond.manu_data.p_pattern = p_adv_filt_cb->value;
+                    cond.manu_data.p_pattern_mask = p_adv_filt_cb->value_mask;
+                    BTA_DmBleCfgFilterCondition(p_adv_filt_cb->action,
+                                              p_adv_filt_cb->filt_type, p_adv_filt_cb->filt_index,
+                                              &cond, bta_scan_filt_cfg_cb,
+                                              p_adv_filt_cb->client_if);
+                    break;
+                }
+
+                case BTA_DM_BLE_PF_SRVC_DATA_PATTERN: //6
+                {
+                    cond.srvc_data.data_len = p_adv_filt_cb->value_len;
+                    cond.srvc_data.p_pattern = p_adv_filt_cb->value;
+                    cond.srvc_data.p_pattern_mask = p_adv_filt_cb->value_mask;
+                    BTA_DmBleCfgFilterCondition(p_adv_filt_cb->action,
+                                                p_adv_filt_cb->filt_type, p_adv_filt_cb->filt_index,
+                                                &cond, bta_scan_filt_cfg_cb,
+                                                p_adv_filt_cb->client_if);
+                   break;
+                }
+
+                default:
+                    LOG_ERROR(LOG_TAG, "%s: Unknown filter type (%d)!", __FUNCTION__, p_cb->action);
+                    break;
+            }
+            break;
+        }
+
+        case BTIF_GATTC_SCAN_FILTER_CLEAR:
+        {
+            btgatt_adv_filter_cb_t *p_adv_filt_cb = (btgatt_adv_filter_cb_t *) p_param;
+            BTA_DmBleCfgFilterCondition(BTA_DM_BLE_SCAN_COND_CLEAR, BTA_DM_BLE_PF_TYPE_ALL,
+                                        p_adv_filt_cb->filt_index, NULL, bta_scan_filt_cfg_cb,
+                                        p_adv_filt_cb->client_if);
+            break;
+        }
+
+        case BTIF_GATTC_SCAN_FILTER_ENABLE:
+        {
+            btgatt_adv_filter_cb_t *p_adv_filt_cb = (btgatt_adv_filter_cb_t *) p_param;
+            BTA_DmEnableScanFilter(p_adv_filt_cb->action, bta_scan_filt_status_cb,
+                                   p_adv_filt_cb->client_if);
+            break;
+        }
+
+        case BTIF_GATTC_LISTEN:
+#if (defined(BLE_PERIPHERAL_MODE_SUPPORT) && (BLE_PERIPHERAL_MODE_SUPPORT == TRUE))
+            BTA_GATTC_Listen(p_cb->client_if, p_cb->start, NULL);
+#else
+            BTA_GATTC_Broadcast(p_cb->client_if, p_cb->start);
+#endif
+            break;
+
+        case BTIF_GATTC_SET_ADV_DATA:
+        {
+            const btif_adv_data_t *p_adv_data = (btif_adv_data_t*) p_param;
+            const int cbindex = CLNT_IF_IDX;
+            if (cbindex >= 0 && btif_gattc_copy_datacb(cbindex, p_adv_data, false))
+            {
+                btgatt_multi_adv_common_data *p_multi_adv_data_cb = btif_obtain_multi_adv_data_cb();
+                if (!p_adv_data->set_scan_rsp)
+                {
+                    BTA_DmBleSetAdvConfig(p_multi_adv_data_cb->inst_cb[cbindex].mask,
+                        &p_multi_adv_data_cb->inst_cb[cbindex].data, bta_gattc_set_adv_data_cback);
+                }
+                else
+                {
+                    BTA_DmBleSetScanRsp(p_multi_adv_data_cb->inst_cb[cbindex].mask,
+                        &p_multi_adv_data_cb->inst_cb[cbindex].data, bta_gattc_set_adv_data_cback);
+                }
+            }
+            else
+            {
+                BTIF_TRACE_ERROR("%s:%s: failed to get instance data cbindex: %d",
+                                 __func__, "BTIF_GATTC_SET_ADV_DATA", cbindex);
+            }
+            break;
+        }
+
+        case BTIF_GATTC_ADV_INSTANCE_ENABLE:
+        {
+            btgatt_multi_adv_inst_cb *p_inst_cb = (btgatt_multi_adv_inst_cb*) p_param;
+
+            int cbindex = -1, arrindex = -1;
+
+            arrindex = btif_multi_adv_add_instid_map(p_inst_cb->client_if,INVALID_ADV_INST, true);
+            if (arrindex >= 0)
+                cbindex = btif_gattc_obtain_idx_for_datacb(p_inst_cb->client_if, CLNT_IF_IDX);
+
+            if (cbindex >= 0 && arrindex >= 0)
+            {
+                btgatt_multi_adv_common_data *p_multi_adv_data_cb = btif_obtain_multi_adv_data_cb();
+                memcpy(&p_multi_adv_data_cb->inst_cb[cbindex].param,
+                       &p_inst_cb->param, sizeof(tBTA_BLE_ADV_PARAMS));
+                p_multi_adv_data_cb->inst_cb[cbindex].timeout_s = p_inst_cb->timeout_s;
+                BTIF_TRACE_DEBUG("%s, client_if value: %d", __FUNCTION__,
+                            p_multi_adv_data_cb->clntif_map[arrindex + arrindex]);
+                BTA_BleEnableAdvInstance(&(p_multi_adv_data_cb->inst_cb[cbindex].param),
+                    bta_gattc_multi_adv_cback,
+                    &(p_multi_adv_data_cb->clntif_map[arrindex + arrindex]));
+            }
+            else
+            {
+                /* let the error propagate up from BTA layer */
+                BTIF_TRACE_ERROR("%s invalid index in BTIF_GATTC_ENABLE_ADV",__FUNCTION__);
+                BTA_BleEnableAdvInstance(&p_inst_cb->param, bta_gattc_multi_adv_cback, NULL);
+            }
+            break;
+        }
+
+        case BTIF_GATTC_ADV_INSTANCE_UPDATE:
+        {
+            btgatt_multi_adv_inst_cb *p_inst_cb = (btgatt_multi_adv_inst_cb*) p_param;
+            int inst_id = btif_multi_adv_instid_for_clientif(p_inst_cb->client_if);
+            int cbindex = btif_gattc_obtain_idx_for_datacb(p_inst_cb->client_if, CLNT_IF_IDX);
+            if (inst_id >= 0 && cbindex >= 0 && NULL != p_inst_cb)
+            {
+                btgatt_multi_adv_common_data *p_multi_adv_data_cb = btif_obtain_multi_adv_data_cb();
+                memcpy(&p_multi_adv_data_cb->inst_cb[cbindex].param, &p_inst_cb->param,
+                        sizeof(tBTA_BLE_ADV_PARAMS));
+                BTA_BleUpdateAdvInstParam((UINT8)inst_id,
+                    &(p_multi_adv_data_cb->inst_cb[cbindex].param));
+            }
+            else
+                BTIF_TRACE_ERROR("%s invalid index in BTIF_GATTC_UPDATE_ADV", __FUNCTION__);
+            break;
+        }
+
+        case BTIF_GATTC_ADV_INSTANCE_SET_DATA:
+        {
+            btif_adv_data_t *p_adv_data = (btif_adv_data_t*) p_param;
+            int cbindex = btif_gattc_obtain_idx_for_datacb(p_adv_data->client_if, CLNT_IF_IDX);
+            int inst_id = btif_multi_adv_instid_for_clientif(p_adv_data->client_if);
+            if (inst_id >= 0 && cbindex >= 0 && btif_gattc_copy_datacb(cbindex, p_adv_data, true))
+            {
+                btgatt_multi_adv_common_data *p_multi_adv_data_cb =
+                    btif_obtain_multi_adv_data_cb();
+                BTA_BleCfgAdvInstData(
+                    (UINT8)inst_id,
+                    p_adv_data->set_scan_rsp,
+                    p_multi_adv_data_cb->inst_cb[cbindex].mask,
+                    &p_multi_adv_data_cb->inst_cb[cbindex].data);
+            }
+            else
+            {
+                BTIF_TRACE_ERROR(
+                    "%s:%s: failed to get invalid instance data: inst_id:%d "
+                    "cbindex:%d",
+                    __func__, "BTIF_GATTC_ADV_INSTANCE_SET_DATA", inst_id, cbindex);
+            }
+            break;
+        }
+
+        case BTIF_GATTC_ADV_INSTANCE_DISABLE:
+        {
+            btgatt_multi_adv_inst_cb *p_inst_cb = (btgatt_multi_adv_inst_cb*) p_param;
+            int inst_id = btif_multi_adv_instid_for_clientif(p_inst_cb->client_if);
+            if (inst_id >=0)
+                BTA_BleDisableAdvInstance((UINT8)inst_id);
+            else
+                BTIF_TRACE_ERROR("%s invalid instance ID in BTIF_GATTC_DISABLE_ADV",__FUNCTION__);
+            break;
+        }
+
+        case BTIF_GATTC_CONFIGURE_MTU:
+            BTA_GATTC_ConfigureMTU(p_cb->conn_id, p_cb->len);
+            break;
+
+        case BTIF_GATTC_CONN_PARAM_UPDT:
+        {
+            btif_conn_param_cb_t *p_conn_param_cb = (btif_conn_param_cb_t*) p_param;
+            if (BTA_DmGetConnectionState(p_conn_param_cb->bd_addr.address))
+            {
+                BTA_DmBleUpdateConnectionParams(p_conn_param_cb->bd_addr.address,
+                               p_conn_param_cb->min_interval, p_conn_param_cb->max_interval,
+                               p_conn_param_cb->latency, p_conn_param_cb->timeout);
+            } else {
+                BTA_DmSetBlePrefConnParams(p_conn_param_cb->bd_addr.address,
+                               p_conn_param_cb->min_interval, p_conn_param_cb->max_interval,
+                               p_conn_param_cb->latency, p_conn_param_cb->timeout);
+            }
+            break;
+        }
+
+        case BTIF_GATTC_SET_SCAN_PARAMS:
+        {
+            BTA_DmSetBleScanParams(p_cb->client_if, p_cb->scan_interval, p_cb->scan_window,
+                                   BTM_BLE_SCAN_MODE_ACTI, bta_scan_param_setup_cb);
+            break;
+        }
+
+        case BTIF_GATTC_CONFIG_STORAGE_PARAMS:
+        {
+            btgatt_batch_track_cb_t *p_scan_track_cb = (btgatt_batch_track_cb_t *) p_param;
+            BTA_DmBleSetStorageParams(p_scan_track_cb->batch_scan_full_max,
+               p_scan_track_cb->batch_scan_trunc_max, p_scan_track_cb->batch_scan_notify_threshold,
+               bta_batch_scan_setup_cb, bta_batch_scan_threshold_cb, bta_batch_scan_reports_cb,
+               (tBTA_DM_BLE_REF_VALUE) p_scan_track_cb->client_if);
+            break;
+        }
+
+        case BTIF_GATTC_ENABLE_BATCH_SCAN:
+        {
+            btgatt_batch_track_cb_t *p_scan_track_cb = (btgatt_batch_track_cb_t *) p_param;
+            BTA_DmBleEnableBatchScan(p_scan_track_cb->scan_mode, p_scan_track_cb->scan_interval,
+               p_scan_track_cb->scan_window, p_scan_track_cb->discard_rule,
+               p_scan_track_cb->addr_type, p_scan_track_cb->client_if);
+            break;
+        }
+
+        case BTIF_GATTC_DISABLE_BATCH_SCAN:
+        {
+            btgatt_batch_track_cb_t *p_scan_track_cb = (btgatt_batch_track_cb_t *) p_param;
+            BTA_DmBleDisableBatchScan(p_scan_track_cb->client_if);
+            break;
+        }
+
+        case BTIF_GATTC_READ_BATCH_SCAN_REPORTS:
+        {
+            btgatt_batch_track_cb_t *p_scan_track_cb = (btgatt_batch_track_cb_t *) p_param;
+            BTA_DmBleReadScanReports(p_scan_track_cb->scan_mode, p_scan_track_cb->client_if);
+            break;
+        }
+
+        default:
+            LOG_ERROR(LOG_TAG, "%s: Unknown event (%d)!", __FUNCTION__, event);
+            break;
+    }
+
+    btgattc_free_event_data(event, p_param);
+}
+
+/*******************************************************************************
+**  Client API Functions
+********************************************************************************/
+
+static bt_status_t btif_gattc_register_app(bt_uuid_t *uuid)
+{
+    CHECK_BTGATT_INIT();
+    btif_gattc_cb_t btif_cb;
+    memcpy(&btif_cb.uuid, uuid, sizeof(bt_uuid_t));
+    return btif_transfer_context(btgattc_handle_event, BTIF_GATTC_REGISTER_APP,
+                                 (char*) &btif_cb, sizeof(btif_gattc_cb_t), NULL);
+}
+
+static bt_status_t btif_gattc_unregister_app(int client_if )
+{
+    CHECK_BTGATT_INIT();
+    btif_gattc_cb_t btif_cb;
+    btif_cb.client_if = (uint8_t) client_if;
+    return btif_transfer_context(btgattc_handle_event, BTIF_GATTC_UNREGISTER_APP,
+                                 (char*) &btif_cb, sizeof(btif_gattc_cb_t), NULL);
+}
+
+static bt_status_t btif_gattc_scan( bool start )
+{
+    CHECK_BTGATT_INIT();
+    btif_gattc_cb_t btif_cb;
+    return btif_transfer_context(btgattc_handle_event, start ? BTIF_GATTC_SCAN_START : BTIF_GATTC_SCAN_STOP,
+                                 (char*) &btif_cb, sizeof(btif_gattc_cb_t), NULL);
+}
+
+static bt_status_t btif_gattc_open(int client_if, const bt_bdaddr_t *bd_addr,
+                                        bool is_direct,int transport)
+{
+    CHECK_BTGATT_INIT();
+    btif_gattc_cb_t btif_cb;
+    btif_cb.client_if = (uint8_t) client_if;
+    btif_cb.is_direct = is_direct ? 1 : 0;
+    btif_cb.transport = (btgatt_transport_t)transport;
+    bdcpy(btif_cb.bd_addr.address, bd_addr->address);
+    return btif_transfer_context(btgattc_handle_event, BTIF_GATTC_OPEN,
+                                 (char*) &btif_cb, sizeof(btif_gattc_cb_t), NULL);
+}
+
+static bt_status_t btif_gattc_close( int client_if, const bt_bdaddr_t *bd_addr, int conn_id)
+{
+    CHECK_BTGATT_INIT();
+    btif_gattc_cb_t btif_cb;
+    btif_cb.client_if = (uint8_t) client_if;
+    btif_cb.conn_id = (uint16_t) conn_id;
+    bdcpy(btif_cb.bd_addr.address, bd_addr->address);
+    return btif_transfer_context(btgattc_handle_event, BTIF_GATTC_CLOSE,
+                                 (char*) &btif_cb, sizeof(btif_gattc_cb_t), NULL);
+}
+
+static bt_status_t btif_gattc_listen(int client_if, bool start)
+{
+    CHECK_BTGATT_INIT();
+    btif_gattc_cb_t btif_cb;
+    btif_cb.client_if = (uint8_t) client_if;
+    btif_cb.start = start ? 1 : 0;
+    return btif_transfer_context(btgattc_handle_event, BTIF_GATTC_LISTEN,
+                                 (char*) &btif_cb, sizeof(btif_gattc_cb_t), NULL);
+}
+
+static void btif_gattc_deep_copy(UINT16 event, char *p_dest, char *p_src)
+{
+    switch (event)
+    {
+        case BTIF_GATTC_ADV_INSTANCE_SET_DATA:
+        case BTIF_GATTC_SET_ADV_DATA:
+        {
+            const btif_adv_data_t *src = (btif_adv_data_t*) p_src;
+            btif_adv_data_t *dst = (btif_adv_data_t*) p_dest;
+            maybe_non_aligned_memcpy(dst, src, sizeof(*src));
+
+            if (src->p_manufacturer_data)
+            {
+                dst->p_manufacturer_data = osi_malloc(src->manufacturer_len);
+                memcpy(dst->p_manufacturer_data, src->p_manufacturer_data,
+                       src->manufacturer_len);
+            }
+
+            if (src->p_service_data)
+            {
+                dst->p_service_data = osi_malloc(src->service_data_len);
+                memcpy(dst->p_service_data, src->p_service_data, src->service_data_len);
+            }
+
+            if (src->p_service_uuid)
+            {
+                dst->p_service_uuid = osi_malloc(src->service_uuid_len);
+                memcpy(dst->p_service_uuid, src->p_service_uuid, src->service_uuid_len);
+            }
+            break;
+        }
+
+        default:
+            ASSERTC(false, "Unhandled deep copy", event);
+            break;
+    }
+}
+
+static bt_status_t btif_gattc_set_adv_data(int client_if, bool set_scan_rsp, bool include_name,
+                bool include_txpower, int min_interval, int max_interval, int appearance,
+                uint16_t manufacturer_len, char* manufacturer_data,
+                uint16_t service_data_len, char* service_data,
+                uint16_t service_uuid_len, char* service_uuid)
+{
+    CHECK_BTGATT_INIT();
+    btif_adv_data_t adv_data;
+
+    btif_gattc_adv_data_packager(client_if, set_scan_rsp, include_name,
+        include_txpower, min_interval, max_interval, appearance, manufacturer_len,
+        manufacturer_data, service_data_len, service_data, service_uuid_len, service_uuid,
+        &adv_data);
+
+    bt_status_t status = btif_transfer_context(btgattc_handle_event, BTIF_GATTC_SET_ADV_DATA,
+                       (char*) &adv_data, sizeof(adv_data), btif_gattc_deep_copy);
+    btif_gattc_adv_data_cleanup(&adv_data);
+    return status;
+}
+
+static bt_status_t btif_gattc_refresh( int client_if, const bt_bdaddr_t *bd_addr )
+{
+    CHECK_BTGATT_INIT();
+    btif_gattc_cb_t btif_cb;
+    btif_cb.client_if = (uint8_t) client_if;
+    bdcpy(btif_cb.bd_addr.address, bd_addr->address);
+    return btif_transfer_context(btgattc_handle_event, BTIF_GATTC_REFRESH,
+                                 (char*) &btif_cb, sizeof(btif_gattc_cb_t), NULL);
+}
+
+static bt_status_t btif_gattc_search_service(int conn_id, bt_uuid_t *filter_uuid )
+{
+    CHECK_BTGATT_INIT();
+    btif_gattc_cb_t btif_cb;
+    btif_cb.conn_id = (uint16_t) conn_id;
+    btif_cb.search_all = filter_uuid ? 0 : 1;
+    if (filter_uuid)
+        memcpy(&btif_cb.uuid, filter_uuid, sizeof(bt_uuid_t));
+    return btif_transfer_context(btgattc_handle_event, BTIF_GATTC_SEARCH_SERVICE,
+                                 (char*) &btif_cb, sizeof(btif_gattc_cb_t), NULL);
+}
+
+static bt_status_t btif_gattc_get_gatt_db(int conn_id)
+{
+    CHECK_BTGATT_INIT();
+    btif_gattc_cb_t btif_cb;
+    btif_cb.conn_id = (uint16_t) conn_id;
+
+    return btif_transfer_context(btgattc_handle_event, BTIF_GATTC_GET_GATT_DB,
+                                 (char*) &btif_cb, sizeof(btif_gattc_cb_t), NULL);
+}
+
+
+static bt_status_t btif_gattc_read_char(int conn_id, uint16_t handle, int auth_req)
+{
+    CHECK_BTGATT_INIT();
+    btif_gattc_cb_t btif_cb;
+    btif_cb.conn_id = (uint16_t) conn_id;
+    btif_cb.handle = (uint16_t) handle;
+    btif_cb.auth_req = (uint8_t) auth_req;
+    return btif_transfer_context(btgattc_handle_event, BTIF_GATTC_READ_CHAR,
+                                 (char*) &btif_cb, sizeof(btif_gattc_cb_t), NULL);
+}
+
+static bt_status_t btif_gattc_read_char_descr(int conn_id, uint16_t handle, int auth_req)
+{
+    CHECK_BTGATT_INIT();
+    btif_gattc_cb_t btif_cb;
+    btif_cb.conn_id = (uint16_t) conn_id;
+    btif_cb.handle = (uint16_t) handle;
+    btif_cb.auth_req = (uint8_t) auth_req;
+    return btif_transfer_context(btgattc_handle_event, BTIF_GATTC_READ_CHAR_DESCR,
+                                 (char*) &btif_cb, sizeof(btif_gattc_cb_t), NULL);
+}
+
+static bt_status_t btif_gattc_write_char(int conn_id, uint16_t handle, int write_type,
+                                         int len, int auth_req, char* p_value)
+{
+    CHECK_BTGATT_INIT();
+    btif_gattc_cb_t btif_cb;
+    btif_cb.conn_id = (uint16_t) conn_id;
+    btif_cb.handle = (uint16_t) handle;
+    btif_cb.auth_req = (uint8_t) auth_req;
+    btif_cb.write_type = (uint8_t) write_type;
+    btif_cb.len = len > BTGATT_MAX_ATTR_LEN ? BTGATT_MAX_ATTR_LEN : len;
+    memcpy(btif_cb.value, p_value, btif_cb.len);
+    return btif_transfer_context(btgattc_handle_event, BTIF_GATTC_WRITE_CHAR,
+                                 (char*) &btif_cb, sizeof(btif_gattc_cb_t), NULL);
+}
+
+static bt_status_t btif_gattc_write_char_descr(int conn_id, uint16_t handle,
+                                               int write_type, int len, int auth_req,
+                                               char* p_value)
+{
+    CHECK_BTGATT_INIT();
+    btif_gattc_cb_t btif_cb;
+    btif_cb.conn_id = (uint16_t) conn_id;
+    btif_cb.handle = (uint16_t) handle;
+    btif_cb.auth_req = (uint8_t) auth_req;
+    btif_cb.write_type = (uint8_t) write_type;
+    btif_cb.len = len > BTGATT_MAX_ATTR_LEN ? BTGATT_MAX_ATTR_LEN : len;
+    memcpy(btif_cb.value, p_value, btif_cb.len);
+    return btif_transfer_context(btgattc_handle_event, BTIF_GATTC_WRITE_CHAR_DESCR,
+                                 (char*) &btif_cb, sizeof(btif_gattc_cb_t), NULL);
+}
+
+static bt_status_t btif_gattc_execute_write(int conn_id, int execute)
+{
+    CHECK_BTGATT_INIT();
+    btif_gattc_cb_t btif_cb;
+    btif_cb.conn_id = (uint16_t) conn_id;
+    btif_cb.action = (uint8_t) execute;
+    return btif_transfer_context(btgattc_handle_event, BTIF_GATTC_EXECUTE_WRITE,
+                                 (char*) &btif_cb, sizeof(btif_gattc_cb_t), NULL);
+}
+
+static bt_status_t btif_gattc_reg_for_notification(int client_if, const bt_bdaddr_t *bd_addr,
+                                                   uint16_t handle)
+{
+    CHECK_BTGATT_INIT();
+    btif_gattc_cb_t btif_cb;
+    btif_cb.client_if = (uint8_t) client_if;
+    bdcpy(btif_cb.bd_addr.address, bd_addr->address);
+    btif_cb.handle = handle;
+    return btif_transfer_context(btgattc_handle_event, BTIF_GATTC_REG_FOR_NOTIFICATION,
+                                 (char*) &btif_cb, sizeof(btif_gattc_cb_t), NULL);
+}
+
+static bt_status_t btif_gattc_dereg_for_notification(int client_if, const bt_bdaddr_t *bd_addr,
+                                                     uint16_t handle)
+{
+    CHECK_BTGATT_INIT();
+    btif_gattc_cb_t btif_cb;
+    btif_cb.client_if = (uint8_t) client_if;
+    bdcpy(btif_cb.bd_addr.address, bd_addr->address);
+    btif_cb.handle = handle;
+    return btif_transfer_context(btgattc_handle_event, BTIF_GATTC_DEREG_FOR_NOTIFICATION,
+                                 (char*) &btif_cb, sizeof(btif_gattc_cb_t), NULL);
+}
+
+static bt_status_t btif_gattc_read_remote_rssi(int client_if, const bt_bdaddr_t *bd_addr)
+{
+    CHECK_BTGATT_INIT();
+    btif_gattc_cb_t btif_cb;
+    btif_cb.client_if = (uint8_t) client_if;
+    bdcpy(btif_cb.bd_addr.address, bd_addr->address);
+    return btif_transfer_context(btgattc_handle_event, BTIF_GATTC_READ_RSSI,
+                                 (char*) &btif_cb, sizeof(btif_gattc_cb_t), NULL);
+}
+
+static bt_status_t btif_gattc_configure_mtu(int conn_id, int mtu)
+{
+    CHECK_BTGATT_INIT();
+    btif_gattc_cb_t btif_cb;
+    btif_cb.conn_id = conn_id;
+    btif_cb.len = mtu; // Re-use len field
+    return btif_transfer_context(btgattc_handle_event, BTIF_GATTC_CONFIGURE_MTU,
+                                 (char*) &btif_cb, sizeof(btif_gattc_cb_t), NULL);
+}
+
+static bt_status_t btif_gattc_conn_parameter_update(const bt_bdaddr_t *bd_addr, int min_interval,
+                    int max_interval, int latency, int timeout)
+{
+    CHECK_BTGATT_INIT();
+    btif_conn_param_cb_t btif_cb;
+    btif_cb.min_interval = min_interval;
+    btif_cb.max_interval = max_interval;
+    btif_cb.latency = latency;
+    btif_cb.timeout = timeout;
+    bdcpy(btif_cb.bd_addr.address, bd_addr->address);
+    return btif_transfer_context(btgattc_handle_event, BTIF_GATTC_CONN_PARAM_UPDT,
+                                 (char*) &btif_cb, sizeof(btif_conn_param_cb_t), NULL);
+}
+
+static bt_status_t btif_gattc_scan_filter_param_setup(btgatt_filt_param_setup_t
+                                                      filt_param)
+{
+    CHECK_BTGATT_INIT();
+    BTIF_TRACE_DEBUG("%s", __FUNCTION__);
+    btgatt_adv_filter_cb_t btif_filt_cb;
+    memset(&btif_filt_cb, 0, sizeof(btgatt_adv_filter_cb_t));
+    btif_filt_cb.client_if = filt_param.client_if;
+    btif_filt_cb.action = filt_param.action;
+    btif_filt_cb.filt_index = filt_param.filt_index;
+    btif_filt_cb.adv_filt_param.feat_seln = filt_param.feat_seln;
+    btif_filt_cb.adv_filt_param.list_logic_type = filt_param.list_logic_type;
+    btif_filt_cb.adv_filt_param.filt_logic_type = filt_param.filt_logic_type;
+    btif_filt_cb.adv_filt_param.rssi_high_thres = filt_param.rssi_high_thres;
+    btif_filt_cb.adv_filt_param.rssi_low_thres = filt_param.rssi_low_thres;
+    btif_filt_cb.adv_filt_param.dely_mode = filt_param.dely_mode;
+    btif_filt_cb.adv_filt_param.found_timeout = filt_param.found_timeout;
+    btif_filt_cb.adv_filt_param.lost_timeout = filt_param.lost_timeout;
+    btif_filt_cb.adv_filt_param.found_timeout_cnt = filt_param.found_timeout_cnt;
+    btif_filt_cb.adv_filt_param.num_of_tracking_entries = filt_param.num_of_tracking_entries;
+    return btif_transfer_context(btgattc_handle_event, BTIF_GATTC_SCAN_FILTER_PARAM_SETUP,
+                                 (char*) &btif_filt_cb, sizeof(btgatt_adv_filter_cb_t), NULL);
+}
+
+static bt_status_t btif_gattc_scan_filter_add_remove(int client_if, int action,
+                              int filt_type, int filt_index, int company_id,
+                              int company_id_mask, const bt_uuid_t *p_uuid,
+                              const bt_uuid_t *p_uuid_mask, const bt_bdaddr_t *bd_addr,
+                              char addr_type, int data_len, char* p_data, int mask_len,
+                              char* p_mask)
+{
+    CHECK_BTGATT_INIT();
+    btgatt_adv_filter_cb_t btif_filt_cb;
+    memset(&btif_filt_cb, 0, sizeof(btgatt_adv_filter_cb_t));
+    BTIF_TRACE_DEBUG("%s, %d, %d", __FUNCTION__, action, filt_type);
+
+    /* If data is passed, both mask and data have to be the same length */
+    if (data_len != mask_len && NULL != p_data && NULL != p_mask)
+        return BT_STATUS_PARM_INVALID;
+
+    btif_filt_cb.client_if = client_if;
+    btif_filt_cb.action = action;
+    btif_filt_cb.filt_index = filt_index;
+    btif_filt_cb.filt_type = filt_type;
+    btif_filt_cb.conn_id = company_id;
+    btif_filt_cb.company_id_mask = company_id_mask ? company_id_mask : 0xFFFF;
+    if (bd_addr)
+        bdcpy(btif_filt_cb.bd_addr.address, bd_addr->address);
+
+    btif_filt_cb.addr_type = addr_type;
+    btif_filt_cb.has_mask = (p_uuid_mask != NULL);
+
+    if (p_uuid != NULL)
+        memcpy(&btif_filt_cb.uuid, p_uuid, sizeof(bt_uuid_t));
+    if (p_uuid_mask != NULL)
+        memcpy(&btif_filt_cb.uuid_mask, p_uuid_mask, sizeof(bt_uuid_t));
+    if (p_data != NULL && data_len != 0)
+    {
+        memcpy(btif_filt_cb.value, p_data, data_len);
+        btif_filt_cb.value_len = data_len;
+        memcpy(btif_filt_cb.value_mask, p_mask, mask_len);
+        btif_filt_cb.value_mask_len = mask_len;
+    }
+    return btif_transfer_context(btgattc_handle_event, BTIF_GATTC_SCAN_FILTER_CONFIG,
+                                 (char*) &btif_filt_cb, sizeof(btgatt_adv_filter_cb_t), NULL);
+}
+
+static bt_status_t btif_gattc_scan_filter_clear(int client_if, int filt_index)
+{
+    CHECK_BTGATT_INIT();
+    BTIF_TRACE_DEBUG("%s, %d", __FUNCTION__, filt_index);
+
+    btgatt_adv_filter_cb_t btif_filt_cb;
+    memset(&btif_filt_cb, 0, sizeof(btgatt_adv_filter_cb_t));
+    btif_filt_cb.client_if = client_if;
+    btif_filt_cb.filt_index = filt_index;
+    btif_filt_cb.action = BTA_DM_BLE_SCAN_COND_CLEAR;
+    return btif_transfer_context(btgattc_handle_event, BTIF_GATTC_SCAN_FILTER_CONFIG,
+                                 (char*) &btif_filt_cb, sizeof(btgatt_adv_filter_cb_t), NULL);
+}
+
+static bt_status_t btif_gattc_scan_filter_enable(int client_if, bool enable)
+{
+    int action = 0;
+    CHECK_BTGATT_INIT();
+    BTIF_TRACE_DEBUG("%s, %d", __FUNCTION__, enable);
+
+    btgatt_adv_filter_cb_t btif_filt_cb;
+    memset(&btif_filt_cb, 0, sizeof(btgatt_adv_filter_cb_t));
+    btif_filt_cb.client_if = client_if;
+    if (true == enable)
+        action = 1;
+    btif_filt_cb.action = action;
+    return btif_transfer_context(btgattc_handle_event, BTIF_GATTC_SCAN_FILTER_ENABLE,
+                                 (char*) &btif_filt_cb, sizeof(btgatt_adv_filter_cb_t), NULL);
+}
+
+static bt_status_t btif_gattc_set_scan_parameters(int client_if, int scan_interval,
+                                                  int scan_window)
+{
+    CHECK_BTGATT_INIT();
+    btif_gattc_cb_t btif_cb;
+    btif_cb.client_if = client_if;
+    btif_cb.scan_interval = scan_interval;
+    btif_cb.scan_window = scan_window;
+    return btif_transfer_context(btgattc_handle_event, BTIF_GATTC_SET_SCAN_PARAMS,
+                                 (char*) &btif_cb, sizeof(btif_gattc_cb_t), NULL);
+}
+
+static int btif_gattc_get_device_type( const bt_bdaddr_t *bd_addr )
+{
+    int device_type = 0;
+    char bd_addr_str[18] = {0};
+
+    bdaddr_to_string(bd_addr, bd_addr_str, sizeof(bd_addr_str));
+    if (btif_config_get_int(bd_addr_str, "DevType", &device_type))
+        return device_type;
+    return 0;
+}
+
+static bt_status_t btif_gattc_multi_adv_enable(int client_if, int min_interval, int max_interval,
+                                            int adv_type, int chnl_map, int tx_power, int timeout_s)
+{
+    CHECK_BTGATT_INIT();
+    btgatt_multi_adv_inst_cb adv_cb;
+    memset(&adv_cb, 0, sizeof(btgatt_multi_adv_inst_cb));
+    adv_cb.client_if = (uint8_t) client_if;
+
+    adv_cb.param.adv_int_min = min_interval;
+    adv_cb.param.adv_int_max = max_interval;
+    adv_cb.param.adv_type = adv_type;
+    adv_cb.param.channel_map = chnl_map;
+    adv_cb.param.adv_filter_policy = 0;
+    adv_cb.param.tx_power = tx_power;
+    adv_cb.timeout_s = timeout_s;
+    return btif_transfer_context(btgattc_handle_event, BTIF_GATTC_ADV_INSTANCE_ENABLE,
+                             (char*) &adv_cb, sizeof(btgatt_multi_adv_inst_cb), NULL);
+}
+
+static bt_status_t btif_gattc_multi_adv_update(int client_if, int min_interval, int max_interval,
+                                            int adv_type, int chnl_map,int tx_power, int timeout_s)
+{
+    CHECK_BTGATT_INIT();
+    btgatt_multi_adv_inst_cb adv_cb;
+    memset(&adv_cb, 0, sizeof(btgatt_multi_adv_inst_cb));
+    adv_cb.client_if = (uint8_t) client_if;
+
+    adv_cb.param.adv_int_min = min_interval;
+    adv_cb.param.adv_int_max = max_interval;
+    adv_cb.param.adv_type = adv_type;
+    adv_cb.param.channel_map = chnl_map;
+    adv_cb.param.adv_filter_policy = 0;
+    adv_cb.param.tx_power = tx_power;
+    adv_cb.timeout_s = timeout_s;
+    return btif_transfer_context(btgattc_handle_event, BTIF_GATTC_ADV_INSTANCE_UPDATE,
+                         (char*) &adv_cb, sizeof(btgatt_multi_adv_inst_cb), NULL);
+}
+
+static bt_status_t btif_gattc_multi_adv_setdata(int client_if, bool set_scan_rsp,
+                bool include_name, bool incl_txpower, int appearance,
+                int manufacturer_len, char* manufacturer_data,
+                int service_data_len, char* service_data,
+                int service_uuid_len, char* service_uuid)
+{
+    CHECK_BTGATT_INIT();
+
+    btif_adv_data_t multi_adv_data_inst;
+    memset(&multi_adv_data_inst, 0, sizeof(multi_adv_data_inst));
+
+    const int min_interval = 0;
+    const int max_interval = 0;
+
+    btif_gattc_adv_data_packager(client_if, set_scan_rsp, include_name, incl_txpower,
+        min_interval, max_interval, appearance, manufacturer_len, manufacturer_data,
+        service_data_len, service_data, service_uuid_len, service_uuid, &multi_adv_data_inst);
+
+    bt_status_t status = btif_transfer_context(
+        btgattc_handle_event, BTIF_GATTC_ADV_INSTANCE_SET_DATA,
+        (char *)&multi_adv_data_inst, sizeof(multi_adv_data_inst),
+        btif_gattc_deep_copy);
+    btif_gattc_adv_data_cleanup(&multi_adv_data_inst);
+    return status;
+}
+
+static bt_status_t btif_gattc_multi_adv_disable(int client_if)
+{
+    CHECK_BTGATT_INIT();
+    btgatt_multi_adv_inst_cb adv_cb;
+    memset(&adv_cb, 0, sizeof(btgatt_multi_adv_inst_cb));
+    adv_cb.client_if = (uint8_t) client_if;
+
+    return btif_transfer_context(btgattc_handle_event, BTIF_GATTC_ADV_INSTANCE_DISABLE,
+                           (char*) &adv_cb, sizeof(btgatt_multi_adv_inst_cb), NULL);
+}
+
+static bt_status_t btif_gattc_cfg_storage(int client_if,int batch_scan_full_max,
+    int batch_scan_trunc_max, int batch_scan_notify_threshold)
+{
+    CHECK_BTGATT_INIT();
+    btgatt_batch_track_cb_t bt_scan_cb;
+    memset(&bt_scan_cb, 0, sizeof(btgatt_batch_track_cb_t));
+    bt_scan_cb.client_if = (uint8_t) client_if;
+    bt_scan_cb.batch_scan_full_max = batch_scan_full_max;
+    bt_scan_cb.batch_scan_trunc_max = batch_scan_trunc_max;
+    bt_scan_cb.batch_scan_notify_threshold = batch_scan_notify_threshold;
+    return btif_transfer_context(btgattc_handle_event, BTIF_GATTC_CONFIG_STORAGE_PARAMS,
+                                 (char*) &bt_scan_cb, sizeof(btgatt_batch_track_cb_t), NULL);
+}
+
+static bt_status_t btif_gattc_enb_batch_scan(int client_if,int scan_mode, int scan_interval,
+                int scan_window, int addr_type, int discard_rule)
+{
+    CHECK_BTGATT_INIT();
+    btgatt_batch_track_cb_t bt_scan_cb;
+    memset(&bt_scan_cb, 0, sizeof(btgatt_batch_track_cb_t));
+    bt_scan_cb.client_if = (uint8_t) client_if;
+    bt_scan_cb.scan_mode = scan_mode;
+    bt_scan_cb.scan_interval = scan_interval;
+    bt_scan_cb.scan_window = scan_window;
+    bt_scan_cb.discard_rule = discard_rule;
+    bt_scan_cb.addr_type = addr_type;
+    return btif_transfer_context(btgattc_handle_event, BTIF_GATTC_ENABLE_BATCH_SCAN,
+                                 (char*) &bt_scan_cb, sizeof(btgatt_batch_track_cb_t), NULL);
+}
+
+static bt_status_t btif_gattc_dis_batch_scan(int client_if)
+{
+    CHECK_BTGATT_INIT();
+    btgatt_batch_track_cb_t bt_scan_cb;
+    memset(&bt_scan_cb, 0, sizeof(btgatt_batch_track_cb_t));
+    bt_scan_cb.client_if = (uint8_t) client_if;
+    return btif_transfer_context(btgattc_handle_event, BTIF_GATTC_DISABLE_BATCH_SCAN,
+                                 (char*) &bt_scan_cb, sizeof(btgatt_batch_track_cb_t), NULL);
+}
+
+static bt_status_t btif_gattc_read_batch_scan_reports(int client_if, int scan_mode)
+{
+    CHECK_BTGATT_INIT();
+    btgatt_batch_track_cb_t bt_scan_cb;
+    memset(&bt_scan_cb, 0, sizeof(btgatt_batch_track_cb_t));
+    bt_scan_cb.client_if = (uint8_t) client_if;
+    bt_scan_cb.scan_mode = scan_mode;
+    return btif_transfer_context(btgattc_handle_event, BTIF_GATTC_READ_BATCH_SCAN_REPORTS,
+                                 (char*) &bt_scan_cb, sizeof(btgatt_batch_track_cb_t), NULL);
+}
+
+extern bt_status_t btif_gattc_test_command_impl(int command, btgatt_test_params_t* params);
+
+static bt_status_t btif_gattc_test_command(int command, btgatt_test_params_t* params)
+{
+    return btif_gattc_test_command_impl(command, params);
+}
+#ifdef BLUETOOTH_RTK
+const btgatt_client_interface_t btgattClientInterface = {
+    .register_client = btif_gattc_register_app,
+    .unregister_client = btif_gattc_unregister_app,
+    .scan = btif_gattc_scan,
+    .connect = btif_gattc_open,
+    .disconnect = btif_gattc_close,
+    .listen = btif_gattc_listen,
+    .refresh = btif_gattc_refresh,
+    .search_service = btif_gattc_search_service,
+    .read_characteristic = btif_gattc_read_char,
+    .write_characteristic = btif_gattc_write_char,
+    .read_descriptor = btif_gattc_read_char_descr,
+    .write_descriptor = btif_gattc_write_char_descr,
+    .execute_write = btif_gattc_execute_write,
+    .register_for_notification = btif_gattc_reg_for_notification,
+    .deregister_for_notification = btif_gattc_dereg_for_notification,
+    .read_remote_rssi = btif_gattc_read_remote_rssi,
+    .scan_filter_param_setup = btif_gattc_scan_filter_param_setup,
+    .scan_filter_add_remove = btif_gattc_scan_filter_add_remove,
+    .scan_filter_clear = btif_gattc_scan_filter_clear,
+    .scan_filter_enable = btif_gattc_scan_filter_enable,
+    .get_device_type = btif_gattc_get_device_type,
+    .set_adv_data = btif_gattc_set_adv_data,
+    .configure_mtu = btif_gattc_configure_mtu,
+    .conn_parameter_update = btif_gattc_conn_parameter_update,
+    .set_scan_parameters = btif_gattc_set_scan_parameters,
+    .multi_adv_enable = btif_gattc_multi_adv_enable,
+    .multi_adv_update = btif_gattc_multi_adv_update,
+    .multi_adv_set_inst_data = btif_gattc_multi_adv_setdata,
+    .multi_adv_disable = btif_gattc_multi_adv_disable,
+    .batchscan_cfg_storage = btif_gattc_cfg_storage,
+    .batchscan_enb_batch_scan = btif_gattc_enb_batch_scan,
+    .batchscan_dis_batch_scan = btif_gattc_dis_batch_scan,
+    .batchscan_read_reports = btif_gattc_read_batch_scan_reports,
+    .test_command = btif_gattc_test_command,
+    .get_gatt_db = btif_gattc_get_gatt_db
+};
+#else
+const btgatt_client_interface_t btgattClientInterface = {
+    btif_gattc_register_app,
+    btif_gattc_unregister_app,
+    btif_gattc_scan,
+    btif_gattc_open,
+    btif_gattc_close,
+    btif_gattc_listen,
+    btif_gattc_refresh,
+    btif_gattc_search_service,
+    btif_gattc_read_char,
+    btif_gattc_write_char,
+    btif_gattc_read_char_descr,
+    btif_gattc_write_char_descr,
+    btif_gattc_execute_write,
+    btif_gattc_reg_for_notification,
+    btif_gattc_dereg_for_notification,
+    btif_gattc_read_remote_rssi,
+    btif_gattc_scan_filter_param_setup,
+    btif_gattc_scan_filter_add_remove,
+    btif_gattc_scan_filter_clear,
+    btif_gattc_scan_filter_enable,
+    btif_gattc_get_device_type,
+    btif_gattc_set_adv_data,
+    btif_gattc_configure_mtu,
+    btif_gattc_conn_parameter_update,
+    btif_gattc_set_scan_parameters,
+    btif_gattc_multi_adv_enable,
+    btif_gattc_multi_adv_update,
+    btif_gattc_multi_adv_setdata,
+    btif_gattc_multi_adv_disable,
+    btif_gattc_cfg_storage,
+    btif_gattc_enb_batch_scan,
+    btif_gattc_dis_batch_scan,
+    btif_gattc_read_batch_scan_reports,
+    btif_gattc_test_command,
+    btif_gattc_get_gatt_db
+};
+#endif
+#endif
diff --git a/rtkbt/code/bt/btif/src/btif_gatt_multi_adv_util.c b/rtkbt/code/bt/btif/src/btif_gatt_multi_adv_util.c
new file mode 100755
index 0000000..ddca7d2
--- /dev/null
+++ b/rtkbt/code/bt/btif/src/btif_gatt_multi_adv_util.c
@@ -0,0 +1,529 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014  Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/*******************************************************************************
+ *
+ *  Filename:      btif_gatt_multi_adv_util.c
+ *
+ *  Description:   Multi ADV helper implementation
+ *
+ *******************************************************************************/
+
+#define LOG_TAG "bt_btif_gatt"
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "btu.h"
+#include "bt_target.h"
+
+#if (BLE_INCLUDED == TRUE)
+
+#include <hardware/bluetooth.h>
+#include <hardware/bt_gatt.h>
+
+#include "bta_gatt_api.h"
+#include "btif_common.h"
+#include "btif_gatt_multi_adv_util.h"
+#include "btif_gatt_util.h"
+
+extern fixed_queue_t *btu_general_alarm_queue;
+
+/*******************************************************************************
+**  Static variables
+********************************************************************************/
+static int user_app_count = 0;
+static btgatt_multi_adv_common_data *p_multi_adv_com_data_cb = NULL;
+
+btgatt_multi_adv_common_data *btif_obtain_multi_adv_data_cb()
+{
+    int max_adv_inst = BTM_BleMaxMultiAdvInstanceCount();
+    if (0 == max_adv_inst)
+        max_adv_inst = 1;
+
+    BTIF_TRACE_DEBUG("%s, Count:%d", __FUNCTION__, max_adv_inst);
+
+    if (NULL == p_multi_adv_com_data_cb)
+    {
+        p_multi_adv_com_data_cb = osi_calloc(sizeof(btgatt_multi_adv_common_data));
+        /* Storing both client_if and inst_id details */
+        p_multi_adv_com_data_cb->clntif_map =
+            osi_calloc((max_adv_inst * INST_ID_IDX_MAX) * sizeof(INT8));
+
+        p_multi_adv_com_data_cb->inst_cb =
+            osi_calloc((max_adv_inst + 1) * sizeof(btgatt_multi_adv_inst_cb));
+
+        for (int i = 0; i < max_adv_inst * 2; i += 2) {
+            p_multi_adv_com_data_cb->clntif_map[i] = INVALID_ADV_INST;
+            p_multi_adv_com_data_cb->clntif_map[i+1] = INVALID_ADV_INST;
+        }
+    }
+
+    return p_multi_adv_com_data_cb;
+}
+
+void btif_gattc_incr_app_count(void)
+{
+    // TODO: Instead of using a fragile reference counter here, one could
+    //       simply track the client_if instances that are in the map.
+    ++user_app_count;
+}
+
+void btif_gattc_decr_app_count(void)
+{
+    if (user_app_count > 0)
+        user_app_count--;
+
+    if ((user_app_count == 0) && (p_multi_adv_com_data_cb != NULL)) {
+       osi_free(p_multi_adv_com_data_cb->clntif_map);
+       osi_free(p_multi_adv_com_data_cb->inst_cb);
+       osi_free_and_reset((void **)&p_multi_adv_com_data_cb);
+    }
+}
+
+int btif_multi_adv_add_instid_map(int client_if, int inst_id, BOOLEAN gen_temp_instid)
+{
+    int i=1;
+
+    btgatt_multi_adv_common_data *p_multi_adv_data_cb = btif_obtain_multi_adv_data_cb();
+    if (NULL == p_multi_adv_data_cb)
+        return INVALID_ADV_INST;
+
+    for (i=1; i <  BTM_BleMaxMultiAdvInstanceCount(); i++)
+    {
+       if (client_if == p_multi_adv_data_cb->clntif_map[i + i])
+       {
+          if (!gen_temp_instid)
+          {
+             // Write the final inst_id value obtained from stack layer
+             p_multi_adv_data_cb->clntif_map[i + (i + 1)] = inst_id;
+             BTIF_TRACE_DEBUG("%s -Index: %d, Found client_if: %d", __FUNCTION__,
+                i, p_multi_adv_data_cb->clntif_map[i + i]);
+             break;
+          }
+          else
+          {
+              //Store the passed in inst_id value
+             if (inst_id != INVALID_ADV_INST)
+                 p_multi_adv_data_cb->clntif_map[i + (i + 1)] = inst_id;
+             else
+                 p_multi_adv_data_cb->clntif_map[i + (i + 1)] = (i + 1);
+
+             BTIF_TRACE_DEBUG("%s - Index:%d,Found client_if: %d", __FUNCTION__,
+                i, p_multi_adv_data_cb->clntif_map[i + i]);
+             break;
+          }
+       }
+    }
+
+    if (i <  BTM_BleMaxMultiAdvInstanceCount())
+        return i;
+
+    // If client ID if is not found, then write both values
+    for (i=1; i <  BTM_BleMaxMultiAdvInstanceCount(); i++)
+    {
+        if (INVALID_ADV_INST == p_multi_adv_data_cb->clntif_map[i + i])
+        {
+            p_multi_adv_data_cb->clntif_map[i + i] = client_if;
+            if (inst_id != INVALID_ADV_INST)
+               p_multi_adv_data_cb->clntif_map[i + (i + 1)] = inst_id;
+            else
+                p_multi_adv_data_cb->clntif_map[i + (i + 1)] = (i + 1);
+            BTIF_TRACE_DEBUG("%s -Not found - Index:%d, client_if: %d, Inst ID: %d",
+                            __FUNCTION__,i,
+                            p_multi_adv_data_cb->clntif_map[i + i],
+                            p_multi_adv_data_cb->clntif_map[i + (i + 1)]);
+            break;
+        }
+    }
+
+    if (i <  BTM_BleMaxMultiAdvInstanceCount())
+        return i;
+    return INVALID_ADV_INST;
+}
+
+int btif_multi_adv_instid_for_clientif(int client_if)
+{
+    int i=1, ret = INVALID_ADV_INST;
+
+    btgatt_multi_adv_common_data *p_multi_adv_data_cb = btif_obtain_multi_adv_data_cb();
+
+    if (NULL == p_multi_adv_data_cb)
+        return INVALID_ADV_INST;
+
+    // Retrieve the existing inst_id for the client_if value
+    for (i=1; i <  BTM_BleMaxMultiAdvInstanceCount(); i++)
+    {
+       if (client_if == p_multi_adv_data_cb->clntif_map[i + i])
+       {
+           BTIF_TRACE_DEBUG("%s - Client if found", __FUNCTION__, client_if);
+           ret = p_multi_adv_data_cb->clntif_map[i + (i + 1)];
+       }
+    }
+
+    return ret;
+}
+
+int btif_gattc_obtain_idx_for_datacb(int value, int clnt_inst_index)
+{
+    int i=1;
+
+    btgatt_multi_adv_common_data *p_multi_adv_data_cb = btif_obtain_multi_adv_data_cb();
+
+    if (NULL == p_multi_adv_data_cb)
+        return INVALID_ADV_INST;
+
+    // Retrieve the array index for the inst_id value
+    for (i=1; i <  BTM_BleMaxMultiAdvInstanceCount(); i++)
+    {
+       if (value == p_multi_adv_data_cb->clntif_map[i + (i + clnt_inst_index)])
+           break;
+    }
+
+    if (i <  BTM_BleMaxMultiAdvInstanceCount())
+    {
+        BTIF_TRACE_DEBUG("%s, %d",__FUNCTION__,i);
+        return i;
+    }
+
+    BTIF_TRACE_DEBUG("%s Invalid instance",__FUNCTION__);
+    return INVALID_ADV_INST;
+}
+
+void btif_gattc_adv_data_packager(int client_if, bool set_scan_rsp,
+                bool include_name, bool include_txpower, int min_interval, int max_interval,
+                int appearance, int manufacturer_len, char* manufacturer_data,
+                int service_data_len, char* service_data, int service_uuid_len,
+                char* service_uuid, btif_adv_data_t *p_multi_adv_inst)
+{
+    memset(p_multi_adv_inst, 0 , sizeof(btif_adv_data_t));
+
+    p_multi_adv_inst->client_if = (uint8_t) client_if;
+    p_multi_adv_inst->set_scan_rsp = set_scan_rsp;
+    p_multi_adv_inst->include_name = include_name;
+    p_multi_adv_inst->include_txpower = include_txpower;
+    p_multi_adv_inst->min_interval = min_interval;
+    p_multi_adv_inst->max_interval = max_interval;
+    p_multi_adv_inst->appearance = appearance;
+    p_multi_adv_inst->manufacturer_len = manufacturer_len;
+
+    if (manufacturer_len > 0)
+    {
+        p_multi_adv_inst->p_manufacturer_data = osi_malloc(manufacturer_len);
+        memcpy(p_multi_adv_inst->p_manufacturer_data, manufacturer_data, manufacturer_len);
+    }
+
+    p_multi_adv_inst->service_data_len = service_data_len;
+    if (service_data_len > 0)
+    {
+        p_multi_adv_inst->p_service_data = osi_malloc(service_data_len);
+        memcpy(p_multi_adv_inst->p_service_data, service_data, service_data_len);
+    }
+
+    p_multi_adv_inst->service_uuid_len = service_uuid_len;
+    if (service_uuid_len > 0)
+    {
+        p_multi_adv_inst->p_service_uuid = osi_malloc(service_uuid_len);
+        memcpy(p_multi_adv_inst->p_service_uuid, service_uuid, service_uuid_len);
+    }
+}
+
+void btif_gattc_adv_data_cleanup(btif_adv_data_t* adv)
+{
+    osi_free_and_reset((void **)&adv->p_service_data);
+    osi_free_and_reset((void **)&adv->p_service_uuid);
+    osi_free_and_reset((void **)&adv->p_manufacturer_data);
+}
+
+BOOLEAN btif_gattc_copy_datacb(int cbindex, const btif_adv_data_t *p_adv_data,
+                               BOOLEAN bInstData) {
+    btgatt_multi_adv_common_data *p_multi_adv_data_cb = btif_obtain_multi_adv_data_cb();
+    if (NULL == p_multi_adv_data_cb || cbindex < 0)
+       return false;
+
+    BTIF_TRACE_DEBUG("%s", __func__);
+
+    memset(&p_multi_adv_data_cb->inst_cb[cbindex].data, 0,
+           sizeof(p_multi_adv_data_cb->inst_cb[cbindex].data));
+    p_multi_adv_data_cb->inst_cb[cbindex].mask = 0;
+
+    if (!p_adv_data->set_scan_rsp)
+    {
+         p_multi_adv_data_cb->inst_cb[cbindex].mask = BTM_BLE_AD_BIT_FLAGS;
+         p_multi_adv_data_cb->inst_cb[cbindex].data.flag = ADV_FLAGS_GENERAL;
+         if (p_multi_adv_data_cb->inst_cb[cbindex].timeout_s)
+             p_multi_adv_data_cb->inst_cb[cbindex].data.flag = ADV_FLAGS_LIMITED;
+         if (p_multi_adv_data_cb->inst_cb[cbindex].param.adv_type == BTA_BLE_NON_CONNECT_EVT)
+             p_multi_adv_data_cb->inst_cb[cbindex].data.flag &=
+                    ~(BTA_DM_LIMITED_DISC | BTA_DM_GENERAL_DISC);
+         if (p_multi_adv_data_cb->inst_cb[cbindex].data.flag == 0)
+            p_multi_adv_data_cb->inst_cb[cbindex].mask = 0;
+    }
+
+    if (p_adv_data->include_name)
+        p_multi_adv_data_cb->inst_cb[cbindex].mask |= BTM_BLE_AD_BIT_DEV_NAME;
+
+    if (p_adv_data->include_txpower)
+        p_multi_adv_data_cb->inst_cb[cbindex].mask |= BTM_BLE_AD_BIT_TX_PWR;
+
+    if (false == bInstData && p_adv_data->min_interval > 0 && p_adv_data->max_interval > 0 &&
+        p_adv_data->max_interval > p_adv_data->min_interval)
+    {
+        p_multi_adv_data_cb->inst_cb[cbindex].mask |= BTM_BLE_AD_BIT_INT_RANGE;
+        p_multi_adv_data_cb->inst_cb[cbindex].data.int_range.low =
+                                        p_adv_data->min_interval;
+        p_multi_adv_data_cb->inst_cb[cbindex].data.int_range.hi =
+                                        p_adv_data->max_interval;
+    }
+    else
+    if (true == bInstData)
+    {
+        if (p_multi_adv_data_cb->inst_cb[cbindex].param.adv_int_min > 0 &&
+            p_multi_adv_data_cb->inst_cb[cbindex].param.adv_int_max > 0 &&
+            p_multi_adv_data_cb->inst_cb[cbindex].param.adv_int_max >
+            p_multi_adv_data_cb->inst_cb[cbindex].param.adv_int_min)
+        {
+              p_multi_adv_data_cb->inst_cb[cbindex].data.int_range.low =
+              p_multi_adv_data_cb->inst_cb[cbindex].param.adv_int_min;
+              p_multi_adv_data_cb->inst_cb[cbindex].data.int_range.hi =
+              p_multi_adv_data_cb->inst_cb[cbindex].param.adv_int_max;
+        }
+
+        if (p_adv_data->include_txpower)
+        {
+            p_multi_adv_data_cb->inst_cb[cbindex].data.tx_power =
+                p_multi_adv_data_cb->inst_cb[cbindex].param.tx_power;
+        }
+    }
+
+    if (p_adv_data->appearance != 0)
+    {
+        p_multi_adv_data_cb->inst_cb[cbindex].mask |= BTM_BLE_AD_BIT_APPEARANCE;
+        p_multi_adv_data_cb->inst_cb[cbindex].data.appearance = p_adv_data->appearance;
+    }
+
+    if (p_adv_data->manufacturer_len > 0 &&
+        p_adv_data->p_manufacturer_data != NULL &&
+        p_adv_data->manufacturer_len < MAX_SIZE_MANUFACTURER_DATA)
+    {
+      p_multi_adv_data_cb->inst_cb[cbindex].mask |= BTM_BLE_AD_BIT_MANU;
+      p_multi_adv_data_cb->inst_cb[cbindex].data.manu.len =
+          p_adv_data->manufacturer_len;
+      memcpy(&p_multi_adv_data_cb->inst_cb[cbindex].data.manu.val,
+             p_adv_data->p_manufacturer_data, p_adv_data->manufacturer_len);
+    }
+
+    if (p_adv_data->service_data_len > 0 &&
+        p_adv_data->p_service_data != NULL &&
+        p_adv_data->service_data_len < MAX_SIZE_PROPRIETARY_ELEMENT)
+    {
+      BTIF_TRACE_DEBUG("%s - In service_data", __func__);
+      tBTA_BLE_PROPRIETARY *p_prop = &p_multi_adv_data_cb->inst_cb[cbindex].data.proprietary;
+      p_prop->num_elem = 1;
+
+      tBTA_BLE_PROP_ELEM *p_elem = &p_prop->elem[0];
+      p_elem->adv_type = BTM_BLE_AD_TYPE_SERVICE_DATA;
+      p_elem->len = p_adv_data->service_data_len;
+      memcpy(p_elem->val, p_adv_data->p_service_data,
+             p_adv_data->service_data_len);
+
+      p_multi_adv_data_cb->inst_cb[cbindex].mask |= BTM_BLE_AD_BIT_PROPRIETARY;
+    }
+
+    if (p_adv_data->service_uuid_len && p_adv_data->p_service_uuid)
+    {
+        UINT16 *p_uuid_out16 = NULL;
+        UINT32 *p_uuid_out32 = NULL;
+        for (int position = 0; position < p_adv_data->service_uuid_len; position += LEN_UUID_128)
+        {
+             bt_uuid_t uuid;
+             memset(&uuid, 0, sizeof(uuid));
+             memcpy(&uuid.uu, p_adv_data->p_service_uuid + position, LEN_UUID_128);
+
+             tBT_UUID bt_uuid;
+             memset(&bt_uuid, 0, sizeof(bt_uuid));
+             btif_to_bta_uuid(&bt_uuid, &uuid);
+
+             switch(bt_uuid.len)
+             {
+                case (LEN_UUID_16):
+                {
+                  if (p_multi_adv_data_cb->inst_cb[cbindex].data.services.num_service == 0)
+                  {
+                      p_multi_adv_data_cb->inst_cb[cbindex].data.services.list_cmpl = FALSE;
+                      p_uuid_out16 = p_multi_adv_data_cb->inst_cb[cbindex].data.services.uuid;
+                  }
+
+                  if (p_multi_adv_data_cb->inst_cb[cbindex].data.services.num_service < MAX_16BIT_SERVICES)
+                  {
+                     BTIF_TRACE_DEBUG("%s - In 16-UUID_data", __func__);
+                     p_multi_adv_data_cb->inst_cb[cbindex].mask |= BTM_BLE_AD_BIT_SERVICE;
+                     ++p_multi_adv_data_cb->inst_cb[cbindex].data.services.num_service;
+                     *p_uuid_out16++ = bt_uuid.uu.uuid16;
+                  }
+                  break;
+                }
+
+                case (LEN_UUID_32):
+                {
+                   if (p_multi_adv_data_cb->inst_cb[cbindex].data.service_32b.num_service == 0)
+                   {
+                      p_multi_adv_data_cb->inst_cb[cbindex].data.service_32b.list_cmpl = FALSE;
+                      p_uuid_out32 = p_multi_adv_data_cb->inst_cb[cbindex].data.service_32b.uuid;
+                   }
+
+                   if (p_multi_adv_data_cb->inst_cb[cbindex].data.service_32b.num_service < MAX_32BIT_SERVICES)
+                   {
+                      BTIF_TRACE_DEBUG("%s - In 32-UUID_data", __func__);
+                      p_multi_adv_data_cb->inst_cb[cbindex].mask |= BTM_BLE_AD_BIT_SERVICE_32;
+                      ++p_multi_adv_data_cb->inst_cb[cbindex].data.service_32b.num_service;
+                      *p_uuid_out32++ = bt_uuid.uu.uuid32;
+                   }
+                   break;
+                }
+
+                case (LEN_UUID_128):
+                {
+                   /* Currently, only one 128-bit UUID is supported */
+                   if (p_multi_adv_data_cb->inst_cb[cbindex].data.services_128b.num_service == 0)
+                   {
+                     BTIF_TRACE_DEBUG("%s - In 128-UUID_data", __FUNCTION__);
+                     p_multi_adv_data_cb->inst_cb[cbindex].mask |=
+                         BTM_BLE_AD_BIT_SERVICE_128;
+                     memcpy(p_multi_adv_data_cb->inst_cb[cbindex]
+                                .data.services_128b.uuid128,
+                            bt_uuid.uu.uuid128, LEN_UUID_128);
+                     BTIF_TRACE_DEBUG(
+                         "%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x",
+                         bt_uuid.uu.uuid128[0], bt_uuid.uu.uuid128[1],
+                         bt_uuid.uu.uuid128[2], bt_uuid.uu.uuid128[3],
+                         bt_uuid.uu.uuid128[4], bt_uuid.uu.uuid128[5],
+                         bt_uuid.uu.uuid128[6], bt_uuid.uu.uuid128[7],
+                         bt_uuid.uu.uuid128[8], bt_uuid.uu.uuid128[9],
+                         bt_uuid.uu.uuid128[10], bt_uuid.uu.uuid128[11],
+                         bt_uuid.uu.uuid128[12], bt_uuid.uu.uuid128[13],
+                         bt_uuid.uu.uuid128[14], bt_uuid.uu.uuid128[15]);
+                     ++p_multi_adv_data_cb->inst_cb[cbindex]
+                           .data.services_128b.num_service;
+                     p_multi_adv_data_cb->inst_cb[cbindex]
+                         .data.services_128b.list_cmpl = TRUE;
+                   }
+                   break;
+                }
+
+                default:
+                     break;
+             }
+        }
+    }
+
+     return true;
+}
+
+void btif_gattc_clear_clientif(int client_if, BOOLEAN stop_timer)
+{
+    btgatt_multi_adv_common_data *p_multi_adv_data_cb = btif_obtain_multi_adv_data_cb();
+    if (NULL == p_multi_adv_data_cb)
+        return;
+
+    // Clear both the inst_id and client_if values
+    for (int i=0; i < BTM_BleMaxMultiAdvInstanceCount()*2; i+=2)
+    {
+        if (client_if == p_multi_adv_data_cb->clntif_map[i])
+        {
+            btif_gattc_cleanup_inst_cb(p_multi_adv_data_cb->clntif_map[i+1], stop_timer);
+            if (stop_timer)
+            {
+                p_multi_adv_data_cb->clntif_map[i] = INVALID_ADV_INST;
+                p_multi_adv_data_cb->clntif_map[i+1] = INVALID_ADV_INST;
+                BTIF_TRACE_DEBUG("Cleaning up index %d for clnt_if :%d,", i/2, client_if);
+            }
+            break;
+        }
+    }
+}
+
+void btif_gattc_cleanup_inst_cb(int inst_id, BOOLEAN stop_timer)
+{
+    // Check for invalid instance id
+    if (inst_id < 0 || inst_id >= BTM_BleMaxMultiAdvInstanceCount())
+        return;
+
+    btgatt_multi_adv_common_data *p_multi_adv_data_cb = btif_obtain_multi_adv_data_cb();
+    if (NULL == p_multi_adv_data_cb)
+        return;
+
+    int cbindex = (STD_ADV_INSTID == inst_id) ?
+        STD_ADV_INSTID : btif_gattc_obtain_idx_for_datacb(inst_id, INST_ID_IDX);
+    if (cbindex < 0) return;
+
+    BTIF_TRACE_DEBUG("%s: inst_id %d, cbindex %d", __func__, inst_id, cbindex);
+    btif_gattc_cleanup_multi_inst_cb(&p_multi_adv_data_cb->inst_cb[cbindex], stop_timer);
+}
+
+void btif_gattc_cleanup_multi_inst_cb(btgatt_multi_adv_inst_cb *p_multi_inst_cb,
+                                             BOOLEAN stop_timer)
+{
+    if (p_multi_inst_cb == NULL)
+        return;
+
+    // Discoverability timer cleanup
+    if (stop_timer)
+    {
+        alarm_free(p_multi_inst_cb->multi_adv_timer);
+        p_multi_inst_cb->multi_adv_timer = NULL;
+    }
+
+    memset(&p_multi_inst_cb->data, 0, sizeof(p_multi_inst_cb->data));
+}
+
+void btif_multi_adv_timer_ctrl(int client_if, alarm_callback_t cb)
+{
+    int inst_id = btif_multi_adv_instid_for_clientif(client_if);
+    if (inst_id == INVALID_ADV_INST)
+        return;
+
+    int cbindex = btif_gattc_obtain_idx_for_datacb(inst_id, INST_ID_IDX);
+    if (cbindex == INVALID_ADV_INST)
+        return;
+
+    btgatt_multi_adv_common_data *p_multi_adv_data_cb = btif_obtain_multi_adv_data_cb();
+    if (p_multi_adv_data_cb == NULL)
+        return;
+
+    btgatt_multi_adv_inst_cb *inst_cb = &p_multi_adv_data_cb->inst_cb[cbindex];
+    if (cb == NULL)
+    {
+        alarm_free(inst_cb->multi_adv_timer);
+        inst_cb->multi_adv_timer = NULL;
+    } else {
+        if (inst_cb->timeout_s != 0)
+        {
+            alarm_free(inst_cb->multi_adv_timer);
+            inst_cb->multi_adv_timer = alarm_new("btif_gatt.multi_adv_timer");
+            alarm_set_on_queue(inst_cb->multi_adv_timer,
+                               inst_cb->timeout_s * 1000,
+                               cb, INT_TO_PTR(client_if),
+                               btu_general_alarm_queue);
+        }
+    }
+}
+
+#endif
diff --git a/rtkbt/code/bt/btif/src/btif_gatt_server.c b/rtkbt/code/bt/btif/src/btif_gatt_server.c
new file mode 100755
index 0000000..330c48e
--- /dev/null
+++ b/rtkbt/code/bt/btif/src/btif_gatt_server.c
@@ -0,0 +1,706 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2013 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/************************************************************************************
+ *
+ *  Filename:      btif_gatt_server.c
+ *
+ *  Description:   GATT server implementation
+ *
+ ***********************************************************************************/
+
+#define LOG_TAG "bt_btif_gatt"
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <hardware/bluetooth.h>
+#include <hardware/bt_gatt.h>
+
+#include "btif_common.h"
+#include "btif_util.h"
+
+#if (defined(BLE_INCLUDED) && (BLE_INCLUDED == TRUE))
+
+#include "bta_api.h"
+#include "bta_gatt_api.h"
+#include "btif_config.h"
+#include "btif_dm.h"
+#include "btif_gatt.h"
+#include "btif_gatt_util.h"
+#include "btif_storage.h"
+#include "bt_common.h"
+#include "osi/include/log.h"
+
+/************************************************************************************
+**  Constants & Macros
+************************************************************************************/
+
+#define CHECK_BTGATT_INIT() if (bt_gatt_callbacks == NULL)\
+    {\
+        LOG_WARN(LOG_TAG, "%s: BTGATT not initialized", __FUNCTION__);\
+        return BT_STATUS_NOT_READY;\
+    } else {\
+        LOG_VERBOSE(LOG_TAG, "%s", __FUNCTION__);\
+    }
+
+typedef enum {
+    BTIF_GATTS_REGISTER_APP = 2000,
+    BTIF_GATTS_UNREGISTER_APP,
+    BTIF_GATTS_OPEN,
+    BTIF_GATTS_CLOSE,
+    BTIF_GATTS_CREATE_SERVICE,
+    BTIF_GATTS_ADD_INCLUDED_SERVICE,
+    BTIF_GATTS_ADD_CHARACTERISTIC,
+    BTIF_GATTS_ADD_DESCRIPTOR,
+    BTIF_GATTS_START_SERVICE,
+    BTIF_GATTS_STOP_SERVICE,
+    BTIF_GATTS_DELETE_SERVICE,
+    BTIF_GATTS_SEND_INDICATION,
+    BTIF_GATTS_SEND_RESPONSE
+} btif_gatts_event_t;
+
+/************************************************************************************
+**  Local type definitions
+************************************************************************************/
+
+typedef struct
+{
+    uint8_t             value[BTGATT_MAX_ATTR_LEN];
+    btgatt_response_t   response;
+    btgatt_srvc_id_t    srvc_id;
+    bt_bdaddr_t         bd_addr;
+    bt_uuid_t           uuid;
+    uint32_t            trans_id;
+    uint16_t            conn_id;
+    uint16_t            srvc_handle;
+    uint16_t            incl_handle;
+    uint16_t            attr_handle;
+    uint16_t            permissions;
+    uint16_t            len;
+    uint8_t             server_if;
+    uint8_t             is_direct;
+    uint8_t             num_handles;
+    uint8_t             properties;
+    uint8_t             confirm;
+    uint8_t             status;
+    btgatt_transport_t  transport;
+
+} __attribute__((packed)) btif_gatts_cb_t;
+
+/************************************************************************************
+**  Static variables
+************************************************************************************/
+
+extern const btgatt_callbacks_t *bt_gatt_callbacks;
+
+/************************************************************************************
+**  Static functions
+************************************************************************************/
+
+static void btapp_gatts_copy_req_data(UINT16 event, char *p_dest, char *p_src)
+{
+    tBTA_GATTS *p_dest_data = (tBTA_GATTS*) p_dest;
+    tBTA_GATTS *p_src_data = (tBTA_GATTS*) p_src;
+
+    if (!p_src_data || !p_dest_data)
+        return;
+
+    // Copy basic structure first
+    maybe_non_aligned_memcpy(p_dest_data, p_src_data, sizeof(*p_src_data));
+
+    // Allocate buffer for request data if necessary
+    switch (event)
+    {
+        case BTA_GATTS_READ_EVT:
+        case BTA_GATTS_WRITE_EVT:
+        case BTA_GATTS_EXEC_WRITE_EVT:
+        case BTA_GATTS_MTU_EVT:
+            p_dest_data->req_data.p_data = osi_malloc(sizeof(tBTA_GATTS_REQ_DATA));
+            memcpy(p_dest_data->req_data.p_data, p_src_data->req_data.p_data,
+                   sizeof(tBTA_GATTS_REQ_DATA));
+            break;
+
+        default:
+            break;
+    }
+}
+
+static void btapp_gatts_free_req_data(UINT16 event, tBTA_GATTS *p_data)
+{
+    switch (event)
+    {
+        case BTA_GATTS_READ_EVT:
+        case BTA_GATTS_WRITE_EVT:
+        case BTA_GATTS_EXEC_WRITE_EVT:
+        case BTA_GATTS_MTU_EVT:
+            if (p_data != NULL)
+                osi_free_and_reset((void **)&p_data->req_data.p_data);
+            break;
+
+        default:
+            break;
+    }
+}
+
+static void btapp_gatts_handle_cback(uint16_t event, char* p_param)
+{
+    LOG_VERBOSE(LOG_TAG, "%s: Event %d", __FUNCTION__, event);
+
+    tBTA_GATTS *p_data = (tBTA_GATTS*)p_param;
+    switch (event)
+    {
+        case BTA_GATTS_REG_EVT:
+        {
+            bt_uuid_t app_uuid;
+            bta_to_btif_uuid(&app_uuid, &p_data->reg_oper.uuid);
+            HAL_CBACK(bt_gatt_callbacks, server->register_server_cb
+                , p_data->reg_oper.status
+                , p_data->reg_oper.server_if
+                , &app_uuid
+            );
+            break;
+        }
+
+        case BTA_GATTS_DEREG_EVT:
+            break;
+
+        case BTA_GATTS_CONNECT_EVT:
+        {
+            bt_bdaddr_t bda;
+            bdcpy(bda.address, p_data->conn.remote_bda);
+
+            btif_gatt_check_encrypted_link(p_data->conn.remote_bda, p_data->conn.transport);
+
+            HAL_CBACK(bt_gatt_callbacks, server->connection_cb,
+                      p_data->conn.conn_id, p_data->conn.server_if, TRUE, &bda);
+            break;
+        }
+
+        case BTA_GATTS_DISCONNECT_EVT:
+        {
+            bt_bdaddr_t bda;
+            bdcpy(bda.address, p_data->conn.remote_bda);
+
+            HAL_CBACK(bt_gatt_callbacks, server->connection_cb,
+                      p_data->conn.conn_id, p_data->conn.server_if, FALSE, &bda);
+            break;
+        }
+
+        case BTA_GATTS_CREATE_EVT:
+        {
+            btgatt_srvc_id_t srvc_id;
+            srvc_id.is_primary = p_data->create.is_primary;
+            srvc_id.id.inst_id = p_data->create.svc_instance;
+            bta_to_btif_uuid(&srvc_id.id.uuid, &p_data->create.uuid);
+
+            HAL_CBACK(bt_gatt_callbacks, server->service_added_cb,
+                      p_data->create.status, p_data->create.server_if, &srvc_id,
+                      p_data->create.service_id
+            );
+        }
+        break;
+
+        case BTA_GATTS_ADD_INCL_SRVC_EVT:
+            HAL_CBACK(bt_gatt_callbacks, server->included_service_added_cb,
+                      p_data->add_result.status,
+                      p_data->add_result.server_if,
+                      p_data->add_result.service_id,
+                      p_data->add_result.attr_id);
+            break;
+
+        case BTA_GATTS_ADD_CHAR_EVT:
+        {
+            bt_uuid_t uuid;
+            bta_to_btif_uuid(&uuid, &p_data->add_result.char_uuid);
+
+            HAL_CBACK(bt_gatt_callbacks, server->characteristic_added_cb,
+                      p_data->add_result.status,
+                      p_data->add_result.server_if,
+                      &uuid,
+                      p_data->add_result.service_id,
+                      p_data->add_result.attr_id);
+            break;
+        }
+
+        case BTA_GATTS_ADD_CHAR_DESCR_EVT:
+        {
+            bt_uuid_t uuid;
+            bta_to_btif_uuid(&uuid, &p_data->add_result.char_uuid);
+
+            HAL_CBACK(bt_gatt_callbacks, server->descriptor_added_cb,
+                      p_data->add_result.status,
+                      p_data->add_result.server_if,
+                      &uuid,
+                      p_data->add_result.service_id,
+                      p_data->add_result.attr_id);
+            break;
+        }
+
+        case BTA_GATTS_START_EVT:
+            HAL_CBACK(bt_gatt_callbacks, server->service_started_cb,
+                      p_data->srvc_oper.status,
+                      p_data->srvc_oper.server_if,
+                      p_data->srvc_oper.service_id);
+            break;
+
+        case BTA_GATTS_STOP_EVT:
+            HAL_CBACK(bt_gatt_callbacks, server->service_stopped_cb,
+                      p_data->srvc_oper.status,
+                      p_data->srvc_oper.server_if,
+                      p_data->srvc_oper.service_id);
+            break;
+
+        case BTA_GATTS_DELELTE_EVT:
+            HAL_CBACK(bt_gatt_callbacks, server->service_deleted_cb,
+                      p_data->srvc_oper.status,
+                      p_data->srvc_oper.server_if,
+                      p_data->srvc_oper.service_id);
+            break;
+
+        case BTA_GATTS_READ_EVT:
+        {
+            bt_bdaddr_t bda;
+            bdcpy(bda.address, p_data->req_data.remote_bda);
+
+            HAL_CBACK(bt_gatt_callbacks, server->request_read_cb,
+                      p_data->req_data.conn_id,p_data->req_data.trans_id, &bda,
+                      p_data->req_data.p_data->read_req.handle,
+                      p_data->req_data.p_data->read_req.offset,
+                      p_data->req_data.p_data->read_req.is_long);
+            break;
+        }
+
+        case BTA_GATTS_WRITE_EVT:
+        {
+            bt_bdaddr_t bda;
+            bdcpy(bda.address, p_data->req_data.remote_bda);
+
+            HAL_CBACK(bt_gatt_callbacks, server->request_write_cb,
+                      p_data->req_data.conn_id,p_data->req_data.trans_id, &bda,
+                      p_data->req_data.p_data->write_req.handle,
+                      p_data->req_data.p_data->write_req.offset,
+                      p_data->req_data.p_data->write_req.len,
+                      p_data->req_data.p_data->write_req.need_rsp,
+                      p_data->req_data.p_data->write_req.is_prep,
+                      p_data->req_data.p_data->write_req.value);
+            break;
+        }
+
+        case BTA_GATTS_EXEC_WRITE_EVT:
+        {
+            bt_bdaddr_t bda;
+            bdcpy(bda.address, p_data->req_data.remote_bda);
+
+            HAL_CBACK(bt_gatt_callbacks, server->request_exec_write_cb,
+                      p_data->req_data.conn_id,p_data->req_data.trans_id, &bda,
+                      p_data->req_data.p_data->exec_write);
+            break;
+        }
+
+        case BTA_GATTS_CONF_EVT:
+            HAL_CBACK(bt_gatt_callbacks, server->indication_sent_cb,
+                      p_data->req_data.conn_id, p_data->req_data.status);
+            break;
+
+        case BTA_GATTS_CONGEST_EVT:
+            HAL_CBACK(bt_gatt_callbacks, server->congestion_cb
+                , p_data->congest.conn_id
+                , p_data->congest.congested
+            );
+            break;
+
+        case BTA_GATTS_MTU_EVT:
+            HAL_CBACK(bt_gatt_callbacks, server->mtu_changed_cb
+                , p_data->req_data.conn_id
+                , p_data->req_data.p_data->mtu
+            );
+            break;
+
+        case BTA_GATTS_OPEN_EVT:
+        case BTA_GATTS_CANCEL_OPEN_EVT:
+        case BTA_GATTS_CLOSE_EVT:
+            LOG_DEBUG(LOG_TAG, "%s: Empty event (%d)!", __FUNCTION__, event);
+            break;
+
+        default:
+            LOG_ERROR(LOG_TAG, "%s: Unhandled event (%d)!", __FUNCTION__, event);
+            break;
+    }
+
+    btapp_gatts_free_req_data(event, p_data);
+}
+
+static void btapp_gatts_cback(tBTA_GATTS_EVT event, tBTA_GATTS *p_data)
+{
+    bt_status_t status;
+    status = btif_transfer_context(btapp_gatts_handle_cback, (uint16_t) event,
+        (void*)p_data, sizeof(tBTA_GATTS), btapp_gatts_copy_req_data);
+    ASSERTC(status == BT_STATUS_SUCCESS, "Context transfer failed!", status);
+}
+
+static void btgatts_handle_event(uint16_t event, char* p_param)
+{
+    btif_gatts_cb_t* p_cb = (btif_gatts_cb_t*)p_param;
+    if (!p_cb) return;
+
+    LOG_VERBOSE(LOG_TAG, "%s: Event %d", __FUNCTION__, event);
+
+    switch (event)
+    {
+        case BTIF_GATTS_REGISTER_APP:
+        {
+            tBT_UUID uuid;
+            btif_to_bta_uuid(&uuid, &p_cb->uuid);
+            BTA_GATTS_AppRegister(&uuid, btapp_gatts_cback);
+            break;
+        }
+
+        case BTIF_GATTS_UNREGISTER_APP:
+            BTA_GATTS_AppDeregister(p_cb->server_if);
+            break;
+
+        case BTIF_GATTS_OPEN:
+        {
+            // Ensure device is in inquiry database
+            int addr_type = 0;
+            int device_type = 0;
+            tBTA_GATT_TRANSPORT transport = BTA_GATT_TRANSPORT_LE;
+
+            if (btif_get_address_type(p_cb->bd_addr.address, &addr_type) &&
+                btif_get_device_type(p_cb->bd_addr.address, &device_type) &&
+                device_type != BT_DEVICE_TYPE_BREDR)
+            {
+                BTA_DmAddBleDevice(p_cb->bd_addr.address, addr_type, device_type);
+            }
+
+            // Mark background connections
+            if (!p_cb->is_direct)
+                BTA_DmBleSetBgConnType(BTM_BLE_CONN_AUTO, NULL);
+
+            // Determine transport
+            if (p_cb->transport != GATT_TRANSPORT_AUTO)
+            {
+                transport = p_cb->transport;
+            } else {
+                switch(device_type)
+                {
+                    case BT_DEVICE_TYPE_BREDR:
+                        transport = BTA_GATT_TRANSPORT_BR_EDR;
+                        break;
+
+                    case BT_DEVICE_TYPE_BLE:
+                        transport = BTA_GATT_TRANSPORT_LE;
+                        break;
+
+                    case BT_DEVICE_TYPE_DUMO:
+                        if (p_cb->transport == GATT_TRANSPORT_LE)
+                            transport = BTA_GATT_TRANSPORT_LE;
+                        else
+                            transport = BTA_GATT_TRANSPORT_BR_EDR;
+                        break;
+
+                    default:
+                        BTIF_TRACE_ERROR ("%s: Invalid device type %d", __func__, device_type);
+                        return;
+                }
+            }
+
+            // Connect!
+            BTA_GATTS_Open(p_cb->server_if, p_cb->bd_addr.address,
+                           p_cb->is_direct, transport);
+            break;
+        }
+
+        case BTIF_GATTS_CLOSE:
+            // Cancel pending foreground/background connections
+            BTA_GATTS_CancelOpen(p_cb->server_if, p_cb->bd_addr.address, TRUE);
+            BTA_GATTS_CancelOpen(p_cb->server_if, p_cb->bd_addr.address, FALSE);
+
+            // Close active connection
+            if (p_cb->conn_id != 0)
+                BTA_GATTS_Close(p_cb->conn_id);
+            break;
+
+        case BTIF_GATTS_CREATE_SERVICE:
+        {
+            tBT_UUID uuid;
+            btif_to_bta_uuid(&uuid, &p_cb->srvc_id.id.uuid);
+
+            BTA_GATTS_CreateService(p_cb->server_if, &uuid,
+                                    p_cb->srvc_id.id.inst_id, p_cb->num_handles,
+                                    p_cb->srvc_id.is_primary);
+
+            break;
+        }
+
+        case BTIF_GATTS_ADD_INCLUDED_SERVICE:
+            BTA_GATTS_AddIncludeService(p_cb->srvc_handle, p_cb->incl_handle);
+            break;
+
+        case BTIF_GATTS_ADD_CHARACTERISTIC:
+        {
+            tBT_UUID uuid;
+            btif_to_bta_uuid(&uuid, &p_cb->uuid);
+
+            BTA_GATTS_AddCharacteristic(p_cb->srvc_handle, &uuid,
+                                        p_cb->permissions, p_cb->properties);
+            break;
+        }
+
+        case BTIF_GATTS_ADD_DESCRIPTOR:
+        {
+            tBT_UUID uuid;
+            btif_to_bta_uuid(&uuid, &p_cb->uuid);
+
+            BTA_GATTS_AddCharDescriptor(p_cb->srvc_handle, p_cb->permissions,
+                                         &uuid);
+            break;
+        }
+
+        case BTIF_GATTS_START_SERVICE:
+            BTA_GATTS_StartService(p_cb->srvc_handle, p_cb->transport);
+            break;
+
+        case BTIF_GATTS_STOP_SERVICE:
+            BTA_GATTS_StopService(p_cb->srvc_handle);
+            break;
+
+        case BTIF_GATTS_DELETE_SERVICE:
+            BTA_GATTS_DeleteService(p_cb->srvc_handle);
+            break;
+
+        case BTIF_GATTS_SEND_INDICATION:
+            BTA_GATTS_HandleValueIndication(p_cb->conn_id, p_cb->attr_handle,
+                                        p_cb->len, p_cb->value, p_cb->confirm);
+            // TODO: Might need to send an ACK if handle value indication is
+            //       invoked without need for confirmation.
+            break;
+
+        case BTIF_GATTS_SEND_RESPONSE:
+        {
+            tBTA_GATTS_RSP rsp_struct;
+            btgatt_response_t *p_rsp = &p_cb->response;
+            btif_to_bta_response(&rsp_struct, p_rsp);
+
+            BTA_GATTS_SendRsp(p_cb->conn_id, p_cb->trans_id,
+                              p_cb->status, &rsp_struct);
+
+            HAL_CBACK(bt_gatt_callbacks, server->response_confirmation_cb,
+                      0, rsp_struct.attr_value.handle);
+            break;
+        }
+
+        default:
+            LOG_ERROR(LOG_TAG, "%s: Unknown event (%d)!", __FUNCTION__, event);
+            break;
+    }
+}
+
+/************************************************************************************
+**  Server API Functions
+************************************************************************************/
+
+static bt_status_t btif_gatts_register_app(bt_uuid_t *uuid)
+{
+    CHECK_BTGATT_INIT();
+    btif_gatts_cb_t btif_cb;
+    memcpy(&btif_cb.uuid, uuid, sizeof(bt_uuid_t));
+    return btif_transfer_context(btgatts_handle_event, BTIF_GATTS_REGISTER_APP,
+                                 (char*) &btif_cb, sizeof(btif_gatts_cb_t), NULL);
+}
+
+static bt_status_t btif_gatts_unregister_app( int server_if )
+{
+    CHECK_BTGATT_INIT();
+    btif_gatts_cb_t btif_cb;
+    btif_cb.server_if = (uint8_t) server_if;
+    return btif_transfer_context(btgatts_handle_event, BTIF_GATTS_UNREGISTER_APP,
+                                 (char*) &btif_cb, sizeof(btif_gatts_cb_t), NULL);
+}
+
+static bt_status_t btif_gatts_open( int server_if, const bt_bdaddr_t *bd_addr,
+                                      bool is_direct, int transport )
+{
+    CHECK_BTGATT_INIT();
+    btif_gatts_cb_t btif_cb;
+    btif_cb.server_if = (uint8_t) server_if;
+    btif_cb.is_direct = is_direct ? 1 : 0;
+    btif_cb.transport = (btgatt_transport_t)transport;
+    bdcpy(btif_cb.bd_addr.address, bd_addr->address);
+    return btif_transfer_context(btgatts_handle_event, BTIF_GATTS_OPEN,
+                                 (char*) &btif_cb, sizeof(btif_gatts_cb_t), NULL);
+}
+
+static bt_status_t btif_gatts_close(int server_if, const bt_bdaddr_t *bd_addr, int conn_id)
+{
+    CHECK_BTGATT_INIT();
+    btif_gatts_cb_t btif_cb;
+    btif_cb.server_if = (uint8_t) server_if;
+    btif_cb.conn_id = (uint16_t) conn_id;
+    bdcpy(btif_cb.bd_addr.address, bd_addr->address);
+    return btif_transfer_context(btgatts_handle_event, BTIF_GATTS_CLOSE,
+                                 (char*) &btif_cb, sizeof(btif_gatts_cb_t), NULL);
+}
+
+static bt_status_t btif_gatts_add_service(int server_if, btgatt_srvc_id_t *srvc_id,
+                                          int num_handles)
+{
+    CHECK_BTGATT_INIT();
+    btif_gatts_cb_t btif_cb;
+    btif_cb.server_if = (uint8_t) server_if;
+    btif_cb.num_handles = (uint8_t) num_handles;
+    memcpy(&btif_cb.srvc_id, srvc_id, sizeof(btgatt_srvc_id_t));
+    return btif_transfer_context(btgatts_handle_event, BTIF_GATTS_CREATE_SERVICE,
+                                 (char*) &btif_cb, sizeof(btif_gatts_cb_t), NULL);
+}
+
+static bt_status_t btif_gatts_add_included_service(int server_if, int service_handle,
+                                                   int included_handle)
+{
+    CHECK_BTGATT_INIT();
+    btif_gatts_cb_t btif_cb;
+    btif_cb.server_if = (uint8_t) server_if;
+    btif_cb.srvc_handle = (uint16_t) service_handle;
+    btif_cb.incl_handle = (uint16_t) included_handle;
+    return btif_transfer_context(btgatts_handle_event, BTIF_GATTS_ADD_INCLUDED_SERVICE,
+                                 (char*) &btif_cb, sizeof(btif_gatts_cb_t), NULL);
+}
+
+static bt_status_t btif_gatts_add_characteristic(int server_if, int service_handle,
+                                                 bt_uuid_t *uuid, int properties,
+                                                 int permissions)
+{
+    CHECK_BTGATT_INIT();
+    btif_gatts_cb_t btif_cb;
+    btif_cb.server_if = (uint8_t) server_if;
+    btif_cb.srvc_handle = (uint16_t) service_handle;
+    btif_cb.properties = (uint8_t) properties;
+    btif_cb.permissions = (uint16_t) permissions;
+    memcpy(&btif_cb.uuid, uuid, sizeof(bt_uuid_t));
+    return btif_transfer_context(btgatts_handle_event, BTIF_GATTS_ADD_CHARACTERISTIC,
+                                 (char*) &btif_cb, sizeof(btif_gatts_cb_t), NULL);
+}
+
+static bt_status_t btif_gatts_add_descriptor(int server_if, int service_handle, bt_uuid_t *uuid,
+                                             int permissions)
+{
+    CHECK_BTGATT_INIT();
+    btif_gatts_cb_t btif_cb;
+    btif_cb.server_if = (uint8_t) server_if;
+    btif_cb.srvc_handle = (uint16_t) service_handle;
+    btif_cb.permissions = (uint16_t) permissions;
+    memcpy(&btif_cb.uuid, uuid, sizeof(bt_uuid_t));
+    return btif_transfer_context(btgatts_handle_event, BTIF_GATTS_ADD_DESCRIPTOR,
+                                 (char*) &btif_cb, sizeof(btif_gatts_cb_t), NULL);
+}
+
+static bt_status_t btif_gatts_start_service(int server_if, int service_handle, int transport)
+{
+    CHECK_BTGATT_INIT();
+    btif_gatts_cb_t btif_cb;
+    btif_cb.server_if = (uint8_t) server_if;
+    btif_cb.srvc_handle = (uint16_t) service_handle;
+    btif_cb.transport = (uint8_t) transport;
+    return btif_transfer_context(btgatts_handle_event, BTIF_GATTS_START_SERVICE,
+                                 (char*) &btif_cb, sizeof(btif_gatts_cb_t), NULL);
+}
+
+static bt_status_t btif_gatts_stop_service(int server_if, int service_handle)
+{
+    CHECK_BTGATT_INIT();
+    btif_gatts_cb_t btif_cb;
+    btif_cb.server_if = (uint8_t) server_if;
+    btif_cb.srvc_handle = (uint16_t) service_handle;
+    return btif_transfer_context(btgatts_handle_event, BTIF_GATTS_STOP_SERVICE,
+                                 (char*) &btif_cb, sizeof(btif_gatts_cb_t), NULL);
+}
+
+static bt_status_t btif_gatts_delete_service(int server_if, int service_handle)
+{
+    CHECK_BTGATT_INIT();
+    btif_gatts_cb_t btif_cb;
+    btif_cb.server_if = (uint8_t) server_if;
+    btif_cb.srvc_handle = (uint16_t) service_handle;
+    return btif_transfer_context(btgatts_handle_event, BTIF_GATTS_DELETE_SERVICE,
+                                 (char*) &btif_cb, sizeof(btif_gatts_cb_t), NULL);
+}
+
+static bt_status_t btif_gatts_send_indication(int server_if, int attribute_handle, int conn_id,
+                                              int len, int confirm, char* p_value)
+{
+    CHECK_BTGATT_INIT();
+    btif_gatts_cb_t btif_cb;
+    btif_cb.server_if = (uint8_t) server_if;
+    btif_cb.conn_id = (uint16_t) conn_id;
+    btif_cb.attr_handle = attribute_handle;
+    btif_cb.confirm = confirm;
+    btif_cb.len = len;
+    memcpy(btif_cb.value, p_value, len > BTGATT_MAX_ATTR_LEN ? BTGATT_MAX_ATTR_LEN : len);
+    return btif_transfer_context(btgatts_handle_event, BTIF_GATTS_SEND_INDICATION,
+                                 (char*) &btif_cb, sizeof(btif_gatts_cb_t), NULL);
+}
+
+static bt_status_t btif_gatts_send_response(int conn_id, int trans_id,
+                                            int status, btgatt_response_t *response)
+{
+    CHECK_BTGATT_INIT();
+    btif_gatts_cb_t btif_cb;
+    btif_cb.conn_id = (uint16_t) conn_id;
+    btif_cb.trans_id = (uint32_t) trans_id;
+    btif_cb.status = (uint8_t) status;
+    memcpy(&btif_cb.response, response, sizeof(btgatt_response_t));
+    return btif_transfer_context(btgatts_handle_event, BTIF_GATTS_SEND_RESPONSE,
+                                 (char*) &btif_cb, sizeof(btif_gatts_cb_t), NULL);
+}
+#ifdef BLUETOOTH_RTK
+const btgatt_server_interface_t btgattServerInterface = {
+    .register_server = btif_gatts_register_app,
+    .unregister_server = btif_gatts_unregister_app,
+    .connect = btif_gatts_open,
+    .disconnect = btif_gatts_close,
+    .add_service = btif_gatts_add_service,
+    .add_included_service = btif_gatts_add_included_service,
+    .add_characteristic = btif_gatts_add_characteristic,
+    .add_descriptor = btif_gatts_add_descriptor,
+    .start_service = btif_gatts_start_service,
+    .stop_service = btif_gatts_stop_service,
+    .delete_service = btif_gatts_delete_service,
+    .send_indication = btif_gatts_send_indication,
+    .send_response = btif_gatts_send_response
+};
+#else
+const btgatt_server_interface_t btgattServerInterface = {
+    btif_gatts_register_app,
+    btif_gatts_unregister_app,
+    btif_gatts_open,
+    btif_gatts_close,
+    btif_gatts_add_service,
+    btif_gatts_add_included_service,
+    btif_gatts_add_characteristic,
+    btif_gatts_add_descriptor,
+    btif_gatts_start_service,
+    btif_gatts_stop_service,
+    btif_gatts_delete_service,
+    btif_gatts_send_indication,
+    btif_gatts_send_response
+};
+#endif
+#endif
diff --git a/rtkbt/code/bt/btif/src/btif_gatt_test.c b/rtkbt/code/bt/btif/src/btif_gatt_test.c
new file mode 100755
index 0000000..349674e
--- /dev/null
+++ b/rtkbt/code/bt/btif/src/btif_gatt_test.c
@@ -0,0 +1,299 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2013 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_btif_gatt"
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <hardware/bluetooth.h>
+#include <hardware/bt_gatt.h>
+
+#include "btif_common.h"
+#include "btif_util.h"
+
+#if (defined(BLE_INCLUDED) && (BLE_INCLUDED == TRUE))
+
+#include "bta_gatt_api.h"
+#include "bte_appl.h"
+#include "btif_dm.h"
+#include "btif_gatt.h"
+#include "btif_gatt_util.h"
+#include "btif_storage.h"
+#include "gatt_api.h"
+#include "osi/include/log.h"
+
+/*******************************************************************************
+ * Typedefs & Macros
+ *******************************************************************************/
+
+typedef struct
+{
+    tGATT_IF    gatt_if;
+    UINT16      conn_id;
+} btif_test_cb_t;
+
+/*******************************************************************************
+ * Static variables
+ *******************************************************************************/
+
+static const char * disc_name[GATT_DISC_MAX] =
+{
+    "Unknown",
+    "GATT_DISC_SRVC_ALL",
+    "GATT_DISC_SRVC_BY_UUID",
+    "GATT_DISC_INC_SRVC",
+    "GATT_DISC_CHAR",
+    "GATT_DISC_CHAR_DSCPT"
+};
+
+static btif_test_cb_t test_cb;
+
+/*******************************************************************************
+ * Callback functions
+ *******************************************************************************/
+
+static char * format_uuid(tBT_UUID bt_uuid, char *str_buf)
+{
+    int x = 0;
+
+    if (bt_uuid.len == LEN_UUID_16)
+    {
+        sprintf(str_buf, "0x%04x", bt_uuid.uu.uuid16);
+    }
+    else if (bt_uuid.len == LEN_UUID_128)
+    {
+        x += sprintf(&str_buf[x], "%02x%02x%02x%02x-%02x%02x-%02x%02x",
+                bt_uuid.uu.uuid128[15], bt_uuid.uu.uuid128[14],
+                bt_uuid.uu.uuid128[13], bt_uuid.uu.uuid128[12],
+                bt_uuid.uu.uuid128[11], bt_uuid.uu.uuid128[10],
+                bt_uuid.uu.uuid128[9], bt_uuid.uu.uuid128[8]);
+        sprintf(&str_buf[x], "%02x%02x-%02x%02x%02x%02x%02x%02x",
+                bt_uuid.uu.uuid128[7], bt_uuid.uu.uuid128[6],
+                bt_uuid.uu.uuid128[5], bt_uuid.uu.uuid128[4],
+                bt_uuid.uu.uuid128[3], bt_uuid.uu.uuid128[2],
+                bt_uuid.uu.uuid128[1], bt_uuid.uu.uuid128[0]);
+    }
+    else
+        sprintf(str_buf, "Unknown (len=%d)", bt_uuid.len);
+
+    return str_buf;
+}
+
+static void btif_test_connect_cback(tGATT_IF gatt_if, BD_ADDR bda, UINT16 conn_id,
+                                    BOOLEAN connected, tGATT_DISCONN_REASON reason, tBT_TRANSPORT transport)
+{
+    UNUSED(gatt_if);
+    UNUSED(bda);
+    UNUSED(reason);
+    UNUSED (transport);
+
+    LOG_DEBUG(LOG_TAG, "%s: conn_id=%d, connected=%d", __FUNCTION__, conn_id, connected);
+    test_cb.conn_id = connected ? conn_id : 0;
+}
+
+static void btif_test_command_complete_cback(UINT16 conn_id, tGATTC_OPTYPE op,
+                                tGATT_STATUS status, tGATT_CL_COMPLETE *p_data)
+{
+    LOG_DEBUG(LOG_TAG, "%s: op_code=0x%02x, conn_id=0x%x. status=0x%x",
+            __FUNCTION__, op, conn_id, status);
+
+    switch (op)
+    {
+        case GATTC_OPTYPE_READ:
+        case GATTC_OPTYPE_WRITE:
+        case GATTC_OPTYPE_CONFIG:
+        case GATTC_OPTYPE_EXE_WRITE:
+        case GATTC_OPTYPE_NOTIFICATION:
+            break;
+
+        case GATTC_OPTYPE_INDICATION:
+            GATTC_SendHandleValueConfirm(conn_id, p_data->handle);
+            break;
+
+        default:
+            LOG_DEBUG(LOG_TAG, "%s: Unknown op_code (0x%02x)", __FUNCTION__, op);
+            break;
+    }
+}
+
+static void btif_test_discovery_result_cback(UINT16 conn_id, tGATT_DISC_TYPE disc_type,
+                                           tGATT_DISC_RES *p_data)
+{
+    char    str_buf[50];
+    UNUSED(conn_id);
+
+    LOG_DEBUG(LOG_TAG, "------ GATT Discovery result %-22s -------", disc_name[disc_type]);
+    LOG_DEBUG(LOG_TAG, "      Attribute handle: 0x%04x (%d)", p_data->handle, p_data->handle);
+
+    if (disc_type != GATT_DISC_CHAR_DSCPT) {
+        LOG_DEBUG(LOG_TAG, "        Attribute type: %s", format_uuid(p_data->type, str_buf));
+    }
+
+    switch (disc_type)
+    {
+        case GATT_DISC_SRVC_ALL:
+            LOG_DEBUG(LOG_TAG, "          Handle range: 0x%04x ~ 0x%04x (%d ~ %d)",
+                  p_data->handle, p_data->value.group_value.e_handle,
+                  p_data->handle, p_data->value.group_value.e_handle);
+            LOG_DEBUG(LOG_TAG, "          Service UUID: %s",
+                    format_uuid(p_data->value.group_value.service_type, str_buf));
+            break;
+
+        case GATT_DISC_SRVC_BY_UUID:
+            LOG_DEBUG(LOG_TAG, "          Handle range: 0x%04x ~ 0x%04x (%d ~ %d)",
+                  p_data->handle, p_data->value.handle,
+                  p_data->handle, p_data->value.handle);
+            break;
+
+        case GATT_DISC_INC_SRVC:
+            LOG_DEBUG(LOG_TAG, "          Handle range: 0x%04x ~ 0x%04x (%d ~ %d)",
+                  p_data->value.incl_service.s_handle, p_data->value.incl_service.e_handle,
+                  p_data->value.incl_service.s_handle, p_data->value.incl_service.e_handle);
+            LOG_DEBUG(LOG_TAG, "          Service UUID: %s",
+                  format_uuid(p_data->value.incl_service.service_type, str_buf));
+            break;
+
+        case GATT_DISC_CHAR:
+            LOG_DEBUG(LOG_TAG, "            Properties: 0x%02x",
+                  p_data->value.dclr_value.char_prop);
+            LOG_DEBUG(LOG_TAG, "   Characteristic UUID: %s",
+                  format_uuid(p_data->value.dclr_value.char_uuid, str_buf));
+            break;
+
+        case GATT_DISC_CHAR_DSCPT:
+            LOG_DEBUG(LOG_TAG, "       Descriptor UUID: %s", format_uuid(p_data->type, str_buf));
+            break;
+    }
+
+    LOG_DEBUG(LOG_TAG, "-----------------------------------------------------------");
+}
+
+static void btif_test_discovery_complete_cback(UINT16 conn_id,
+                                               tGATT_DISC_TYPE disc_type,
+                                               tGATT_STATUS status)
+{
+    UNUSED(conn_id);
+    UNUSED(disc_type);
+    LOG_DEBUG(LOG_TAG, "%s: status=%d", __FUNCTION__, status);
+}
+
+static tGATT_CBACK btif_test_callbacks =
+{
+    btif_test_connect_cback ,
+    btif_test_command_complete_cback,
+    btif_test_discovery_result_cback,
+    btif_test_discovery_complete_cback,
+    NULL,
+    NULL,
+    NULL
+};
+
+/*******************************************************************************
+ * Implementation
+ *******************************************************************************/
+
+bt_status_t btif_gattc_test_command_impl(uint16_t command, btgatt_test_params_t* params)
+{
+    switch(command) {
+        case 0x01: /* Enable */
+        {
+            LOG_DEBUG(LOG_TAG, "%s: ENABLE - enable=%d", __FUNCTION__, params->u1);
+            if (params->u1)
+            {
+                tBT_UUID app_uuid = {LEN_UUID_128,{0xAE}};
+                test_cb.gatt_if = GATT_Register(&app_uuid, &btif_test_callbacks);
+                GATT_StartIf(test_cb.gatt_if);
+            } else {
+                GATT_Deregister(test_cb.gatt_if);
+                test_cb.gatt_if = 0;
+            }
+            break;
+        }
+
+        case 0x02: /* Connect */
+        {
+            LOG_DEBUG(LOG_TAG, "%s: CONNECT - device=%02x:%02x:%02x:%02x:%02x:%02x (dev_type=%d, addr_type=%d)",
+                __FUNCTION__,
+                params->bda1->address[0], params->bda1->address[1],
+                params->bda1->address[2], params->bda1->address[3],
+                params->bda1->address[4], params->bda1->address[5],
+                params->u1, params->u2);
+
+            if (params->u1 == BT_DEVICE_TYPE_BLE)
+                BTM_SecAddBleDevice(params->bda1->address, NULL, BT_DEVICE_TYPE_BLE, params->u2);
+
+            if ( !GATT_Connect(test_cb.gatt_if, params->bda1->address, TRUE, BT_TRANSPORT_LE) )
+            {
+                LOG_ERROR(LOG_TAG, "%s: GATT_Connect failed!", __FUNCTION__);
+            }
+            break;
+        }
+
+        case 0x03: /* Disconnect */
+        {
+            LOG_DEBUG(LOG_TAG, "%s: DISCONNECT - conn_id=%d", __FUNCTION__, test_cb.conn_id);
+            GATT_Disconnect(test_cb.conn_id);
+            break;
+        }
+
+        case 0x04: /* Discover */
+        {
+            char buf[50] = {0};
+            tGATT_DISC_PARAM        param;
+            memset(&param, 0, sizeof(tGATT_DISC_PARAM));
+
+            if (params->u1 >= GATT_DISC_MAX)
+            {
+                LOG_ERROR(LOG_TAG, "%s: DISCOVER - Invalid type (%d)!", __FUNCTION__, params->u1);
+                return 0;
+            }
+
+            param.s_handle = params->u2;
+            param.e_handle = params->u3;
+            btif_to_bta_uuid(&param.service, params->uuid1);
+
+            LOG_DEBUG(LOG_TAG, "%s: DISCOVER (%s), conn_id=%d, uuid=%s, handles=0x%04x-0x%04x",
+                  __FUNCTION__, disc_name[params->u1], test_cb.conn_id,
+                  format_uuid(param.service, buf), params->u2, params->u3);
+            GATTC_Discover(test_cb.conn_id, params->u1, &param);
+            break;
+        }
+
+        case 0xF0: /* Pairing configuration */
+            LOG_DEBUG(LOG_TAG, "%s: Setting pairing config auth=%d, iocaps=%d, keys=%d/%d/%d",
+                  __FUNCTION__, params->u1, params->u2, params->u3, params->u4,
+                  params->u5);
+
+            bte_appl_cfg.ble_auth_req = params->u1;
+            bte_appl_cfg.ble_io_cap = params->u2;
+            bte_appl_cfg.ble_init_key = params->u3;
+            bte_appl_cfg.ble_resp_key = params->u4;
+            bte_appl_cfg.ble_max_key_size = params->u5;
+            break;
+
+        default:
+            LOG_ERROR(LOG_TAG, "%s: UNKNOWN TEST COMMAND 0x%02x", __FUNCTION__, command);
+            break;
+    }
+    return 0;
+}
+
+#endif
diff --git a/rtkbt/code/bt/btif/src/btif_gatt_util.c b/rtkbt/code/bt/btif/src/btif_gatt_util.c
new file mode 100755
index 0000000..c93d866
--- /dev/null
+++ b/rtkbt/code/bt/btif/src/btif_gatt_util.c
@@ -0,0 +1,308 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2013 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_btif_gatt"
+
+#include "btif_gatt_util.h"
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <hardware/bluetooth.h>
+#include <hardware/bt_gatt.h>
+
+#include "bdaddr.h"
+#include "bta_api.h"
+#include "bta_gatt_api.h"
+#include "bta_jv_api.h"
+#include "btif_common.h"
+#include "btif_config.h"
+#include "btif_dm.h"
+#include "btif_gatt.h"
+#include "btif_storage.h"
+#include "btif_util.h"
+#include "bt_common.h"
+
+#if BTA_GATT_INCLUDED == TRUE
+
+#define GATTC_READ_VALUE_TYPE_VALUE          0x0000  /* Attribute value itself */
+#define GATTC_READ_VALUE_TYPE_AGG_FORMAT     0x2905  /* Characteristic Aggregate Format*/
+
+static unsigned char BASE_UUID[16] = {
+    0xfb, 0x34, 0x9b, 0x5f, 0x80, 0x00, 0x00, 0x80,
+    0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+};
+
+int uuidType(unsigned char* p_uuid)
+{
+    int i = 0;
+    int match = 0;
+    int all_zero = 1;
+
+    for(i = 0; i != 16; ++i)
+    {
+        if (i == 12 || i == 13)
+            continue;
+
+        if (p_uuid[i] == BASE_UUID[i])
+            ++match;
+
+        if (p_uuid[i] != 0)
+            all_zero = 0;
+    }
+    if (all_zero)
+        return 0;
+    if (match == 12)
+        return LEN_UUID_32;
+    if (match == 14)
+        return LEN_UUID_16;
+    return LEN_UUID_128;
+}
+
+/*******************************************************************************
+ * BTIF -> BTA conversion functions
+ *******************************************************************************/
+
+void btif_to_bta_uuid(tBT_UUID *p_dest, bt_uuid_t *p_src)
+{
+    char *p_byte = (char*)p_src;
+    int i = 0;
+
+    p_dest->len = uuidType(p_src->uu);
+
+    switch (p_dest->len)
+    {
+        case LEN_UUID_16:
+            p_dest->uu.uuid16 = (p_src->uu[13] << 8) + p_src->uu[12];
+            break;
+
+        case LEN_UUID_32:
+            p_dest->uu.uuid32  = (p_src->uu[13] <<  8) + p_src->uu[12];
+            p_dest->uu.uuid32 += (p_src->uu[15] << 24) + (p_src->uu[14] << 16);
+            break;
+
+        case LEN_UUID_128:
+            for(i = 0; i != 16; ++i)
+                p_dest->uu.uuid128[i] = p_byte[i];
+            break;
+
+        default:
+            LOG_ERROR(LOG_TAG, "%s: Unknown UUID length %d!", __FUNCTION__, p_dest->len);
+            break;
+    }
+}
+
+void btif_to_bta_response(tBTA_GATTS_RSP *p_dest, btgatt_response_t* p_src)
+{
+    p_dest->attr_value.auth_req = p_src->attr_value.auth_req;
+    p_dest->attr_value.handle   = p_src->attr_value.handle;
+    p_dest->attr_value.len      = p_src->attr_value.len;
+    p_dest->attr_value.offset   = p_src->attr_value.offset;
+    memcpy(p_dest->attr_value.value, p_src->attr_value.value, GATT_MAX_ATTR_LEN);
+}
+
+void btif_to_bta_uuid_mask(tBTA_DM_BLE_PF_COND_MASK *p_mask, bt_uuid_t *p_src)
+{
+    char *p_byte = (char*)p_src;
+    int i = 0;
+
+    switch (uuidType(p_src->uu))
+    {
+        case LEN_UUID_16:
+            p_mask->uuid16_mask = (p_src->uu[13] << 8) + p_src->uu[12];
+            break;
+
+        case LEN_UUID_32:
+            p_mask->uuid32_mask = (p_src->uu[13] <<  8) + p_src->uu[12];
+            p_mask->uuid32_mask += (p_src->uu[15] << 24) + (p_src->uu[14] << 16);
+            break;
+
+        case LEN_UUID_128:
+            for(i = 0; i != 16; ++i)
+                p_mask->uuid128_mask[i] = p_byte[i];
+            break;
+
+        default:
+            break;
+    }
+}
+
+/*******************************************************************************
+ * BTA -> BTIF conversion functions
+ *******************************************************************************/
+
+void bta_to_btif_uuid(bt_uuid_t *p_dest, tBT_UUID *p_src)
+{
+    int i = 0;
+
+    if (p_src->len == LEN_UUID_16 || p_src->len == LEN_UUID_32)
+    {
+        for(i=0; i != 16; ++i)
+            p_dest->uu[i] = BASE_UUID[i];
+    }
+
+    switch (p_src->len)
+    {
+        case 0:
+            break;
+
+        case LEN_UUID_16:
+            p_dest->uu[12] = p_src->uu.uuid16 & 0xff;
+            p_dest->uu[13] = (p_src->uu.uuid16 >> 8) & 0xff;
+            break;
+
+        case LEN_UUID_32:
+            p_dest->uu[12] = p_src->uu.uuid16 & 0xff;
+            p_dest->uu[13] = (p_src->uu.uuid16 >> 8) & 0xff;
+            p_dest->uu[14] = (p_src->uu.uuid32 >> 16) & 0xff;
+            p_dest->uu[15] = (p_src->uu.uuid32 >> 24) & 0xff;
+            break;
+
+        case LEN_UUID_128:
+            for(i=0; i != 16; ++i)
+                p_dest->uu[i] = p_src->uu.uuid128[i];
+            break;
+
+        default:
+            LOG_ERROR(LOG_TAG, "%s: Unknown UUID length %d!", __FUNCTION__, p_src->len);
+            break;
+    }
+}
+
+/*******************************************************************************
+ * Utility functions
+ *******************************************************************************/
+
+uint16_t get_uuid16(tBT_UUID *p_uuid)
+{
+    if (p_uuid->len == LEN_UUID_16)
+    {
+        return p_uuid->uu.uuid16;
+    }
+    else if (p_uuid->len == LEN_UUID_128)
+    {
+        UINT16 u16;
+        UINT8 *p = &p_uuid->uu.uuid128[LEN_UUID_128 - 4];
+        STREAM_TO_UINT16(u16, p);
+        return u16;
+    }
+    else  /* p_uuid->len == LEN_UUID_32 */
+    {
+        return(UINT16) p_uuid->uu.uuid32;
+    }
+}
+
+uint16_t set_read_value(btgatt_read_params_t *p_dest, tBTA_GATTC_READ *p_src)
+{
+    uint16_t len = 0;
+
+    p_dest->status = p_src->status;
+    p_dest->handle = p_src->handle;
+
+    if (( p_src->status == BTA_GATT_OK ) &&(p_src->p_value != NULL))
+    {
+        LOG_INFO(LOG_TAG, "%s len = %d ", __FUNCTION__, p_src->p_value->len);
+        p_dest->value.len = p_src->p_value->len;
+        if ( p_src->p_value->len > 0  && p_src->p_value->p_value != NULL )
+            memcpy(p_dest->value.value, p_src->p_value->p_value,
+                    p_src->p_value->len);
+
+        len += p_src->p_value->len;
+    } else {
+        p_dest->value.len = 0;
+    }
+
+    p_dest->value_type = GATTC_READ_VALUE_TYPE_VALUE;
+    return len;
+}
+
+/*******************************************************************************
+ * Encrypted link map handling
+ *******************************************************************************/
+
+#if (!defined(BLE_DELAY_REQUEST_ENC) || (BLE_DELAY_REQUEST_ENC == FALSE))
+static BOOLEAN btif_gatt_is_link_encrypted (BD_ADDR bd_addr)
+{
+    if (bd_addr == NULL)
+        return FALSE;
+
+    return BTA_JvIsEncrypted(bd_addr);
+}
+
+static void btif_gatt_set_encryption_cb (BD_ADDR bd_addr, tBTA_TRANSPORT transport, tBTA_STATUS result)
+{
+    UNUSED(bd_addr);
+    UNUSED(transport);
+
+    if (result != BTA_SUCCESS && result != BTA_BUSY)
+    {
+        BTIF_TRACE_WARNING("%s() - Encryption failed (%d)", __FUNCTION__, result);
+    }
+}
+#endif
+
+void btif_gatt_check_encrypted_link (BD_ADDR bd_addr, tBTA_GATT_TRANSPORT transport_link)
+{
+#if (!defined(BLE_DELAY_REQUEST_ENC) || (BLE_DELAY_REQUEST_ENC == FALSE))
+    char buf[100];
+
+    bt_bdaddr_t bda;
+    bdcpy(bda.address, bd_addr);
+
+    if ((btif_storage_get_ble_bonding_key(&bda, BTIF_DM_LE_KEY_PENC,
+                    buf, sizeof(tBTM_LE_PENC_KEYS)) == BT_STATUS_SUCCESS)
+        && !btif_gatt_is_link_encrypted(bd_addr))
+    {
+        BTIF_TRACE_DEBUG ("%s: transport = %d", __func__, transport_link);
+        BTA_DmSetEncryption(bd_addr,transport_link,
+                            &btif_gatt_set_encryption_cb, BTM_BLE_SEC_ENCRYPT);
+    }
+#else
+    UNUSED(bd_addr);
+    UNUSED(transport_link);
+#endif
+}
+
+#endif
+
+void btif_gatt_move_track_adv_data(btgatt_track_adv_info_t *p_dest,
+                              btgatt_track_adv_info_t *p_src)
+{
+    memset(p_dest, 0, sizeof(btgatt_track_adv_info_t));
+
+    memcpy(p_dest, p_src, sizeof(btgatt_track_adv_info_t));
+
+    if (p_src->adv_pkt_len > 0)
+    {
+        p_dest->p_adv_pkt_data = osi_malloc(p_src->adv_pkt_len);
+        memcpy(p_dest->p_adv_pkt_data, p_src->p_adv_pkt_data,
+               p_src->adv_pkt_len);
+        osi_free_and_reset((void **)&p_src->p_adv_pkt_data);
+    }
+
+    if (p_src->scan_rsp_len > 0)
+    {
+        p_dest->p_scan_rsp_data = osi_malloc(p_src->scan_rsp_len);
+        memcpy(p_dest->p_scan_rsp_data, p_src->p_scan_rsp_data,
+               p_src->scan_rsp_len);
+        osi_free_and_reset((void **)&p_src->p_scan_rsp_data);
+    }
+}
+
diff --git a/rtkbt/code/bt/btif/src/btif_hf.c b/rtkbt/code/bt/btif/src/btif_hf.c
new file mode 100755
index 0000000..3d30b6d
--- /dev/null
+++ b/rtkbt/code/bt/btif/src/btif_hf.c
@@ -0,0 +1,1655 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/************************************************************************************
+ *
+ *  Filename:      btif_hf.c
+ *
+ *  Description:   Handsfree Profile Bluetooth Interface
+ *
+ *
+ ***********************************************************************************/
+
+#define LOG_TAG "bt_btif_hf"
+
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+
+#include <hardware/bluetooth.h>
+#include <hardware/bt_hf.h>
+
+#include "bta_ag_api.h"
+#include "btcore/include/bdaddr.h"
+#include "btif_common.h"
+#include "btif_profile_queue.h"
+#include "btif_util.h"
+
+/************************************************************************************
+**  Constants & Macros
+************************************************************************************/
+#ifndef BTIF_HSAG_SERVICE_NAME
+#define BTIF_HSAG_SERVICE_NAME ("Headset Gateway")
+#endif
+
+#ifndef BTIF_HFAG_SERVICE_NAME
+#define BTIF_HFAG_SERVICE_NAME ("Handsfree Gateway")
+#endif
+
+#ifndef BTIF_HF_SERVICES
+#define BTIF_HF_SERVICES    (BTA_HSP_SERVICE_MASK | BTA_HFP_SERVICE_MASK )
+#endif
+
+#ifndef BTIF_HF_SERVICE_NAMES
+#define BTIF_HF_SERVICE_NAMES {BTIF_HSAG_SERVICE_NAME , BTIF_HFAG_SERVICE_NAME}
+#endif
+
+#ifndef BTIF_HF_SECURITY
+#define BTIF_HF_SECURITY    (BTA_SEC_AUTHENTICATE | BTA_SEC_ENCRYPT)
+#endif
+
+#if (BTM_WBS_INCLUDED == TRUE )
+#ifndef BTIF_HF_FEATURES
+#define BTIF_HF_FEATURES   ( BTA_AG_FEAT_3WAY | \
+                             BTA_AG_FEAT_ECNR   | \
+                             BTA_AG_FEAT_REJECT | \
+                             BTA_AG_FEAT_ECS    | \
+                             BTA_AG_FEAT_EXTERR | \
+                             BTA_AG_FEAT_BTRH   | \
+                             BTA_AG_FEAT_VREC   | \
+                             BTA_AG_FEAT_CODEC |\
+                             BTA_AG_FEAT_UNAT)
+#endif
+#else
+#ifndef BTIF_HF_FEATURES
+#define BTIF_HF_FEATURES   ( BTA_AG_FEAT_3WAY | \
+                             BTA_AG_FEAT_ECNR   | \
+                             BTA_AG_FEAT_REJECT | \
+                             BTA_AG_FEAT_ECS    | \
+                             BTA_AG_FEAT_EXTERR | \
+                             BTA_AG_FEAT_BTRH   | \
+                             BTA_AG_FEAT_VREC   | \
+                             BTA_AG_FEAT_UNAT)
+#endif
+#endif
+
+#define BTIF_HF_CALL_END_TIMEOUT       6
+
+#define BTIF_HF_INVALID_IDX       -1
+
+/* Number of BTIF-HF control blocks */
+#define BTIF_HF_NUM_CB       2
+
+/* Max HF clients supported from App */
+UINT16 btif_max_hf_clients = 1;
+
+/* HF app ids for service registration */
+typedef enum {
+    BTIF_HF_ID_1 = 0,
+    BTIF_HF_ID_2,
+#if (BTIF_HF_NUM_CB == 3)
+    BTIF_HF_ID_3
+#endif
+} bthf_hf_id_t;
+
+UINT16 bthf_hf_id[BTIF_HF_NUM_CB] = {BTIF_HF_ID_1, BTIF_HF_ID_2,
+                                    #if (BTIF_HF_NUM_CB == 3)
+                                        BTIF_HF_ID_3
+                                    #endif
+                                    };
+
+/************************************************************************************
+**  Local type definitions
+************************************************************************************/
+
+/************************************************************************************
+**  Static variables
+************************************************************************************/
+static bthf_callbacks_t *bt_hf_callbacks = NULL;
+static int hf_idx = BTIF_HF_INVALID_IDX;
+
+#define CHECK_BTHF_INIT() if (bt_hf_callbacks == NULL)\
+    {\
+        BTIF_TRACE_WARNING("BTHF: %s: BTHF not initialized", __FUNCTION__);\
+        return BT_STATUS_NOT_READY;\
+    }\
+    else\
+    {\
+        BTIF_TRACE_EVENT("BTHF: %s", __FUNCTION__);\
+    }
+
+#define CHECK_BTHF_SLC_CONNECTED() if (bt_hf_callbacks == NULL)\
+    {\
+        BTIF_TRACE_WARNING("BTHF: %s: BTHF not initialized", __FUNCTION__);\
+        return BT_STATUS_NOT_READY;\
+    }\
+    else if (btif_hf_cb.state != BTHF_CONNECTION_STATE_SLC_CONNECTED)\
+    {\
+        BTIF_TRACE_WARNING("BTHF: %s: SLC connection not up. state=%s", __FUNCTION__, dump_hf_conn_state(btif_hf_cb.state));\
+        return BT_STATUS_NOT_READY;\
+    }\
+    else\
+    {\
+        BTIF_TRACE_EVENT("BTHF: %s", __FUNCTION__);\
+    }
+
+/* BTIF-HF control block to map bdaddr to BTA handle */
+typedef struct _btif_hf_cb
+{
+    UINT16                  handle;
+    bt_bdaddr_t             connected_bda;
+    bthf_connection_state_t state;
+    bthf_vr_state_t         vr_state;
+    tBTA_AG_PEER_FEAT       peer_feat;
+    int                     num_active;
+    int                     num_held;
+    struct timespec         call_end_timestamp;
+    struct timespec         connected_timestamp;
+    bthf_call_state_t       call_setup_state;
+} btif_hf_cb_t;
+
+static btif_hf_cb_t btif_hf_cb[BTIF_HF_NUM_CB];
+
+/************************************************************************************
+**  Static functions
+************************************************************************************/
+
+/************************************************************************************
+**  Externs
+************************************************************************************/
+/* By default, even though codec negotiation is enabled, we will not use WBS as the default
+* codec unless this variable is set to TRUE.
+*/
+#ifndef BTIF_HF_WBS_PREFERRED
+#define BTIF_HF_WBS_PREFERRED   FALSE
+#endif
+
+BOOLEAN btif_conf_hf_force_wbs = BTIF_HF_WBS_PREFERRED;
+
+/************************************************************************************
+**  Functions
+************************************************************************************/
+
+/*******************************************************************************
+**
+** Function         is_connected
+**
+** Description      Internal function to check if HF is connected
+**
+** Returns          TRUE if connected
+**
+*******************************************************************************/
+static BOOLEAN is_connected(bt_bdaddr_t *bd_addr)
+{
+        int i;
+        for (i = 0; i < btif_max_hf_clients; ++i)
+        {
+            if (((btif_hf_cb[i].state == BTHF_CONNECTION_STATE_CONNECTED) ||
+                 (btif_hf_cb[i].state == BTHF_CONNECTION_STATE_SLC_CONNECTED)) &&
+                 ((bd_addr == NULL) || (bdcmp(bd_addr->address,
+                                     btif_hf_cb[i].connected_bda.address) == 0)))
+                return TRUE;
+        }
+        return FALSE;
+}
+
+/*******************************************************************************
+**
+** Function         btif_hf_idx_by_bdaddr
+**
+** Description      Internal function to get idx by bdaddr
+**
+** Returns          idx
+**
+*******************************************************************************/
+static int btif_hf_idx_by_bdaddr(bt_bdaddr_t *bd_addr)
+{
+        int i;
+        for (i = 0; i < btif_max_hf_clients; ++i)
+        {
+            if ((bdcmp(bd_addr->address,
+                                  btif_hf_cb[i].connected_bda.address) == 0))
+                return i;
+        }
+        return BTIF_HF_INVALID_IDX;
+}
+
+/*******************************************************************************
+**
+** Function         callstate_to_callsetup
+**
+** Description      Converts HAL call state to BTA call setup indicator value
+**
+** Returns          BTA call indicator value
+**
+*******************************************************************************/
+static UINT8 callstate_to_callsetup(bthf_call_state_t call_state)
+{
+    UINT8 call_setup = 0;
+    if (call_state == BTHF_CALL_STATE_INCOMING)
+        call_setup = 1;
+    if (call_state == BTHF_CALL_STATE_DIALING)
+        call_setup = 2;
+    if (call_state == BTHF_CALL_STATE_ALERTING)
+        call_setup = 3;
+
+    return call_setup;
+}
+
+/*******************************************************************************
+**
+** Function         send_at_result
+**
+** Description      Send AT result code (OK/ERROR)
+**
+** Returns          void
+**
+*******************************************************************************/
+static void send_at_result(UINT8 ok_flag, UINT16 errcode, int idx)
+{
+    tBTA_AG_RES_DATA    ag_res;
+    memset (&ag_res, 0, sizeof (ag_res));
+
+    ag_res.ok_flag = ok_flag;
+    if (ok_flag == BTA_AG_OK_ERROR)
+    {
+        ag_res.errcode = errcode;
+    }
+
+    BTA_AgResult (btif_hf_cb[idx].handle, BTA_AG_UNAT_RES, &ag_res);
+}
+
+/*******************************************************************************
+**
+** Function         send_indicator_update
+**
+** Description      Send indicator update (CIEV)
+**
+** Returns          void
+**
+*******************************************************************************/
+static void send_indicator_update (UINT16 indicator, UINT16 value)
+{
+    tBTA_AG_RES_DATA ag_res;
+
+    memset(&ag_res, 0, sizeof(tBTA_AG_RES_DATA));
+    ag_res.ind.id = indicator;
+    ag_res.ind.value = value;
+
+    BTA_AgResult(BTA_AG_HANDLE_ALL, BTA_AG_IND_RES, &ag_res);
+}
+
+void clear_phone_state_multihf(int idx)
+{
+    btif_hf_cb[idx].call_setup_state = BTHF_CALL_STATE_IDLE;
+    btif_hf_cb[idx].num_active = btif_hf_cb[idx].num_held = 0;
+}
+
+/*******************************************************************************
+**
+** Function         btif_hf_latest_connected_idx
+**
+** Description      Returns idx for latest connected HF
+**
+** Returns          int
+**
+*******************************************************************************/
+static int btif_hf_latest_connected_idx()
+{
+      struct timespec         now, conn_time_delta;
+      int latest_conn_idx = BTIF_HF_INVALID_IDX, i;
+
+      clock_gettime(CLOCK_MONOTONIC, &now);
+      conn_time_delta.tv_sec = now.tv_sec;
+
+      for (i = 0; i < btif_max_hf_clients; i++)
+      {
+          if (btif_hf_cb[i].state == BTHF_CONNECTION_STATE_SLC_CONNECTED)
+          {
+              if ((now.tv_sec - btif_hf_cb[i].connected_timestamp.tv_sec)
+                                            < conn_time_delta.tv_sec)
+              {
+                  conn_time_delta.tv_sec =
+                       now.tv_sec - btif_hf_cb[i].connected_timestamp.tv_sec;
+                  latest_conn_idx = i;
+              }
+          }
+      }
+      return latest_conn_idx;
+}
+
+/*******************************************************************************
+**
+** Function         btif_hf_check_if_slc_connected
+**
+** Description      Returns BT_STATUS_SUCCESS if SLC is up for any HF
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+static bt_status_t btif_hf_check_if_slc_connected()
+{
+    if (bt_hf_callbacks == NULL)
+    {
+        BTIF_TRACE_WARNING("BTHF: %s: BTHF not initialized", __FUNCTION__);
+        return BT_STATUS_NOT_READY;
+    }
+    else
+    {
+        int i;
+        for (i = 0; i < btif_max_hf_clients; i++)
+        {
+            if (btif_hf_cb[i].state == BTHF_CONNECTION_STATE_SLC_CONNECTED)
+            {
+                BTIF_TRACE_EVENT("BTHF: %s: slc connected for idx = %d",
+                                         __FUNCTION__, i);
+                return BT_STATUS_SUCCESS;
+            }
+        }
+        BTIF_TRACE_WARNING("BTHF: %s: No SLC connection up", __FUNCTION__);
+        return BT_STATUS_NOT_READY;
+    }
+}
+
+/*****************************************************************************
+**   Section name (Group of functions)
+*****************************************************************************/
+
+/*****************************************************************************
+**
+**   btif hf api functions (no context switch)
+**
+*****************************************************************************/
+
+/*******************************************************************************
+**
+** Function         btif_hf_upstreams_evt
+**
+** Description      Executes HF UPSTREAMS events in btif context
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btif_hf_upstreams_evt(UINT16 event, char* p_param)
+{
+    tBTA_AG *p_data = (tBTA_AG *)p_param;
+    bdstr_t bdstr;
+    int idx = p_data->hdr.handle - 1;
+
+    BTIF_TRACE_DEBUG("%s: event=%s", __FUNCTION__, dump_hf_event(event));
+
+    if ((idx < 0) || (idx >= BTIF_HF_NUM_CB))
+    {
+        BTIF_TRACE_ERROR("%s: Invalid index %d", __FUNCTION__, idx);
+        return;
+    }
+
+    switch (event)
+    {
+        case BTA_AG_ENABLE_EVT:
+        case BTA_AG_DISABLE_EVT:
+            break;
+
+        case BTA_AG_REGISTER_EVT:
+            btif_hf_cb[idx].handle = p_data->reg.hdr.handle;
+            BTIF_TRACE_DEBUG("%s: BTA_AG_REGISTER_EVT,"
+              "btif_hf_cb.handle = %d", __FUNCTION__, btif_hf_cb[idx].handle);
+            break;
+
+        case BTA_AG_OPEN_EVT:
+            if (p_data->open.status == BTA_AG_SUCCESS)
+            {
+                bdcpy(btif_hf_cb[idx].connected_bda.address,
+                                  p_data->open.bd_addr);
+                btif_hf_cb[idx].state = BTHF_CONNECTION_STATE_CONNECTED;
+                btif_hf_cb[idx].peer_feat = 0;
+                clear_phone_state_multihf(idx);
+            }
+            else if (btif_hf_cb[idx].state == BTHF_CONNECTION_STATE_CONNECTING)
+            {
+                btif_hf_cb[idx].state = BTHF_CONNECTION_STATE_DISCONNECTED;
+            }
+            else
+            {
+                BTIF_TRACE_WARNING("%s: AG open failed, but another device connected. status=%d state=%d connected device=%s",
+                        __FUNCTION__, p_data->open.status, btif_hf_cb[idx].state,
+                                 bdaddr_to_string(&btif_hf_cb[idx].connected_bda, bdstr, sizeof(bdstr)));
+                break;
+            }
+
+            HAL_CBACK(bt_hf_callbacks, connection_state_cb, btif_hf_cb[idx].state,
+                                                        &btif_hf_cb[idx].connected_bda);
+
+            if (btif_hf_cb[idx].state == BTHF_CONNECTION_STATE_DISCONNECTED)
+                bdsetany(btif_hf_cb[idx].connected_bda.address);
+
+            if (p_data->open.status != BTA_AG_SUCCESS)
+                btif_queue_advance();
+            break;
+
+        case BTA_AG_CLOSE_EVT:
+            btif_hf_cb[idx].connected_timestamp.tv_sec = 0;
+            btif_hf_cb[idx].state = BTHF_CONNECTION_STATE_DISCONNECTED;
+            BTIF_TRACE_DEBUG("%s: BTA_AG_CLOSE_EVT,"
+                 "idx = %d, btif_hf_cb.handle = %d", __FUNCTION__, idx,
+                          btif_hf_cb[idx].handle);
+            HAL_CBACK(bt_hf_callbacks, connection_state_cb, btif_hf_cb[idx].state,
+                                                        &btif_hf_cb[idx].connected_bda);
+            bdsetany(btif_hf_cb[idx].connected_bda.address);
+            btif_hf_cb[idx].peer_feat = 0;
+            clear_phone_state_multihf(idx);
+            hf_idx = btif_hf_latest_connected_idx();
+            /* If AG_OPEN was received but SLC was not setup in a specified time (10 seconds),
+            ** then AG_CLOSE may be received. We need to advance the queue here
+            */
+            btif_queue_advance();
+            break;
+
+        case BTA_AG_CONN_EVT:
+            clock_gettime(CLOCK_MONOTONIC,
+                            &btif_hf_cb[idx].connected_timestamp);
+            BTIF_TRACE_DEBUG("%s: BTA_AG_CONN_EVT, idx = %d ",
+                                                __FUNCTION__, idx);
+            btif_hf_cb[idx].peer_feat = p_data->conn.peer_feat;
+            btif_hf_cb[idx].state = BTHF_CONNECTION_STATE_SLC_CONNECTED;
+            hf_idx = btif_hf_latest_connected_idx();
+
+            HAL_CBACK(bt_hf_callbacks, connection_state_cb, btif_hf_cb[idx].state,
+                             &btif_hf_cb[idx].connected_bda);
+            btif_queue_advance();
+            break;
+
+        case BTA_AG_AUDIO_OPEN_EVT:
+            hf_idx = idx;
+            HAL_CBACK(bt_hf_callbacks, audio_state_cb, BTHF_AUDIO_STATE_CONNECTED,
+                                                        &btif_hf_cb[idx].connected_bda);
+            break;
+
+        case BTA_AG_AUDIO_CLOSE_EVT:
+            HAL_CBACK(bt_hf_callbacks, audio_state_cb, BTHF_AUDIO_STATE_DISCONNECTED,
+                                                           &btif_hf_cb[idx].connected_bda);
+            break;
+
+        /* BTA auto-responds, silently discard */
+        case BTA_AG_SPK_EVT:
+        case BTA_AG_MIC_EVT:
+            HAL_CBACK(bt_hf_callbacks, volume_cmd_cb,
+                (event == BTA_AG_SPK_EVT) ? BTHF_VOLUME_TYPE_SPK :
+                      BTHF_VOLUME_TYPE_MIC, p_data->val.num,
+                              &btif_hf_cb[idx].connected_bda);
+            break;
+
+        case BTA_AG_AT_A_EVT:
+            if ((btif_hf_cb[0].num_held + btif_hf_cb[0].num_active) == 0)
+                hf_idx = idx;
+            else
+                BTIF_TRACE_DEBUG("Donot set hf_idx for ATA since already in a call");
+
+            HAL_CBACK(bt_hf_callbacks, answer_call_cmd_cb,
+                              &btif_hf_cb[idx].connected_bda);
+            break;
+
+        /* Java needs to send OK/ERROR for these commands */
+        case BTA_AG_AT_BLDN_EVT:
+        case BTA_AG_AT_D_EVT:
+            if ((btif_hf_cb[0].num_held + btif_hf_cb[0].num_active) == 0)
+                hf_idx = idx;
+            else
+                BTIF_TRACE_DEBUG("Donot set hf_idx for BLDN/D since already in a call");
+
+            HAL_CBACK(bt_hf_callbacks, dial_call_cmd_cb,
+                (event == BTA_AG_AT_D_EVT) ? p_data->val.str : NULL,
+                              &btif_hf_cb[idx].connected_bda);
+            break;
+
+        case BTA_AG_AT_CHUP_EVT:
+            HAL_CBACK(bt_hf_callbacks, hangup_call_cmd_cb,
+                              &btif_hf_cb[idx].connected_bda);
+            break;
+
+        case BTA_AG_AT_CIND_EVT:
+            HAL_CBACK(bt_hf_callbacks, cind_cmd_cb,
+                              &btif_hf_cb[idx].connected_bda);
+            break;
+
+        case BTA_AG_AT_VTS_EVT:
+            HAL_CBACK(bt_hf_callbacks, dtmf_cmd_cb, p_data->val.str[0],
+                              &btif_hf_cb[idx].connected_bda);
+            break;
+
+        case BTA_AG_AT_BVRA_EVT:
+            HAL_CBACK(bt_hf_callbacks, vr_cmd_cb,
+                (p_data->val.num == 1) ? BTHF_VR_STATE_STARTED :
+                      BTHF_VR_STATE_STOPPED, &btif_hf_cb[idx].connected_bda);
+            break;
+
+        case BTA_AG_AT_NREC_EVT:
+            HAL_CBACK(bt_hf_callbacks, nrec_cmd_cb,
+                (p_data->val.num == 1) ? BTHF_NREC_START : BTHF_NREC_STOP,
+                                             &btif_hf_cb[idx].connected_bda);
+            break;
+
+        /* TODO: Add a callback for CBC */
+        case BTA_AG_AT_CBC_EVT:
+            break;
+
+        case BTA_AG_AT_CKPD_EVT:
+            HAL_CBACK(bt_hf_callbacks, key_pressed_cmd_cb,
+                              &btif_hf_cb[idx].connected_bda);
+            break;
+
+#if (BTM_WBS_INCLUDED == TRUE )
+        case BTA_AG_WBS_EVT:
+            BTIF_TRACE_DEBUG("BTA_AG_WBS_EVT Set codec status %d codec %d 1=CVSD 2=MSBC", \
+                               p_data->val.hdr.status, p_data->val.num);
+            if(p_data->val.num == BTA_AG_CODEC_CVSD)
+             { HAL_CBACK(bt_hf_callbacks, wbs_cb, BTHF_WBS_NO, &btif_hf_cb[idx].connected_bda);}
+            else if(p_data->val.num == BTA_AG_CODEC_MSBC)
+             {HAL_CBACK(bt_hf_callbacks, wbs_cb, BTHF_WBS_YES, &btif_hf_cb[idx].connected_bda);}
+            else
+             {HAL_CBACK(bt_hf_callbacks, wbs_cb, BTHF_WBS_NONE, &btif_hf_cb[idx].connected_bda);}
+            break;
+#endif
+        /* Java needs to send OK/ERROR for these commands */
+        case BTA_AG_AT_CHLD_EVT:
+            HAL_CBACK(bt_hf_callbacks, chld_cmd_cb, atoi(p_data->val.str),
+                              &btif_hf_cb[idx].connected_bda);
+            break;
+
+        case BTA_AG_AT_CLCC_EVT:
+            HAL_CBACK(bt_hf_callbacks, clcc_cmd_cb,
+                              &btif_hf_cb[idx].connected_bda);
+            break;
+
+        case BTA_AG_AT_COPS_EVT:
+            HAL_CBACK(bt_hf_callbacks, cops_cmd_cb,
+                              &btif_hf_cb[idx].connected_bda);
+            break;
+
+        case BTA_AG_AT_UNAT_EVT:
+            HAL_CBACK(bt_hf_callbacks, unknown_at_cmd_cb, p_data->val.str,
+                              &btif_hf_cb[idx].connected_bda);
+            break;
+
+        case BTA_AG_AT_CNUM_EVT:
+            HAL_CBACK(bt_hf_callbacks, cnum_cmd_cb,
+                              &btif_hf_cb[idx].connected_bda);
+            break;
+
+        /* TODO: Some of these commands may need to be sent to app. For now respond with error */
+        case BTA_AG_AT_BINP_EVT:
+        case BTA_AG_AT_BTRH_EVT:
+            send_at_result(BTA_AG_OK_ERROR, BTA_AG_ERR_OP_NOT_SUPPORTED, idx);
+            break;
+        case BTA_AG_AT_BAC_EVT:
+            BTIF_TRACE_DEBUG("AG Bitmap of peer-codecs %d", p_data->val.num);
+#if (BTM_WBS_INCLUDED == TRUE )
+            /* If the peer supports mSBC and the BTIF prefferred codec is also mSBC, then
+            we should set the BTA AG Codec to mSBC. This would trigger a +BCS to mSBC at the time
+            of SCO connection establishment */
+            if ((btif_conf_hf_force_wbs == TRUE) && (p_data->val.num & BTA_AG_CODEC_MSBC))
+            {
+                  BTIF_TRACE_EVENT("%s btif_hf override-Preferred Codec to MSBC", __FUNCTION__);
+                  BTA_AgSetCodec(btif_hf_cb[idx].handle,BTA_AG_CODEC_MSBC);
+            }
+            else
+            {
+                  BTIF_TRACE_EVENT("%s btif_hf override-Preferred Codec to CVSD", __FUNCTION__);
+                  BTA_AgSetCodec(btif_hf_cb[idx].handle,BTA_AG_CODEC_CVSD);
+            }
+#endif
+            break;
+        case BTA_AG_AT_BCS_EVT:
+            BTIF_TRACE_DEBUG("AG final seleded codec is %d 1=CVSD 2=MSBC", p_data->val.num);
+            /*  no BTHF_WBS_NONE case, becuase HF1.6 supported device can send BCS */
+            HAL_CBACK(bt_hf_callbacks, wbs_cb,(p_data->val.num == BTA_AG_CODEC_MSBC) ? \
+                        BTHF_WBS_YES : BTHF_WBS_NO, &btif_hf_cb[idx].connected_bda);
+            break;
+
+        default:
+            BTIF_TRACE_WARNING("%s: Unhandled event: %d", __FUNCTION__, event);
+            break;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bte_hf_evt
+**
+** Description      Switches context from BTE to BTIF for all HF events
+**
+** Returns          void
+**
+*******************************************************************************/
+
+static void bte_hf_evt(tBTA_AG_EVT event, tBTA_AG *p_data)
+{
+    bt_status_t status;
+    int param_len = 0;
+
+    /* TODO: BTA sends the union members and not tBTA_AG. If using param_len=sizeof(tBTA_AG), we get a crash on memcpy */
+    if (BTA_AG_REGISTER_EVT == event)
+        param_len = sizeof(tBTA_AG_REGISTER);
+    else if (BTA_AG_OPEN_EVT == event)
+        param_len = sizeof(tBTA_AG_OPEN);
+    else if (BTA_AG_CONN_EVT == event)
+        param_len = sizeof(tBTA_AG_CONN);
+    else if ( (BTA_AG_CLOSE_EVT == event) || (BTA_AG_AUDIO_OPEN_EVT == event) || (BTA_AG_AUDIO_CLOSE_EVT == event))
+        param_len = sizeof(tBTA_AG_HDR);
+    else if (p_data)
+        param_len = sizeof(tBTA_AG_VAL);
+
+    /* switch context to btif task context (copy full union size for convenience) */
+    status = btif_transfer_context(btif_hf_upstreams_evt, (uint16_t)event, (void*)p_data, param_len, NULL);
+
+    /* catch any failed context transfers */
+    ASSERTC(status == BT_STATUS_SUCCESS, "context transfer failed", status);
+}
+
+/*******************************************************************************
+**
+** Function         btif_in_hf_generic_evt
+**
+** Description     Processes generic events to be sent to JNI that are not triggered from the BTA.
+**                      Always runs in BTIF context
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btif_in_hf_generic_evt(UINT16 event, char *p_param)
+{
+    int idx = btif_hf_idx_by_bdaddr((bt_bdaddr_t *)p_param);
+
+    BTIF_TRACE_EVENT("%s: event=%d", __FUNCTION__, event);
+
+    if ((idx < 0) || (idx >= BTIF_HF_NUM_CB))
+    {
+        BTIF_TRACE_ERROR("%s: Invalid index %d", __FUNCTION__, idx);
+        return;
+    }
+
+    switch (event) {
+        case BTIF_HFP_CB_AUDIO_CONNECTING:
+        {
+            HAL_CBACK(bt_hf_callbacks, audio_state_cb, BTHF_AUDIO_STATE_CONNECTING,
+                      &btif_hf_cb[idx].connected_bda);
+        } break;
+        default:
+        {
+            BTIF_TRACE_WARNING("%s : Unknown event 0x%x", __FUNCTION__, event);
+        }
+        break;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btif_hf_init
+**
+** Description     initializes the hf interface
+**
+** Returns         bt_status_t
+**
+*******************************************************************************/
+static bt_status_t init( bthf_callbacks_t* callbacks, int max_hf_clients)
+{
+    btif_max_hf_clients = max_hf_clients;
+    BTIF_TRACE_DEBUG("%s - max_hf_clients=%d", __func__, btif_max_hf_clients);
+
+    bt_hf_callbacks = callbacks;
+    memset(&btif_hf_cb, 0, sizeof(btif_hf_cb));
+
+    /* Invoke the enable service API to the core to set the appropriate service_id
+     * Internally, the HSP_SERVICE_ID shall also be enabled if HFP is enabled (phone)
+     * othwerwise only HSP is enabled (tablet)
+    */
+#if (defined(BTIF_HF_SERVICES) && (BTIF_HF_SERVICES & BTA_HFP_SERVICE_MASK))
+    btif_enable_service(BTA_HFP_SERVICE_ID);
+#else
+    btif_enable_service(BTA_HSP_SERVICE_ID);
+#endif
+
+    for (int i = 0; i < btif_max_hf_clients; i++)
+        clear_phone_state_multihf(i);
+
+    return BT_STATUS_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         connect
+**
+** Description     connect to headset
+**
+** Returns         bt_status_t
+**
+*******************************************************************************/
+static bt_status_t connect_int(bt_bdaddr_t *bd_addr, uint16_t uuid)
+{
+    CHECK_BTHF_INIT();
+    int i;
+    for (i = 0; i < btif_max_hf_clients;)
+    {
+       if (((btif_hf_cb[i].state == BTHF_CONNECTION_STATE_CONNECTED) ||
+              (btif_hf_cb[i].state == BTHF_CONNECTION_STATE_SLC_CONNECTED)))
+           i++;
+       else
+           break;
+    }
+
+    if (i == btif_max_hf_clients)
+        return BT_STATUS_BUSY;
+
+    if (!is_connected(bd_addr))
+    {
+        btif_hf_cb[i].state = BTHF_CONNECTION_STATE_CONNECTING;
+        bdcpy(btif_hf_cb[i].connected_bda.address, bd_addr->address);
+
+        BTA_AgOpen(btif_hf_cb[i].handle, btif_hf_cb[i].connected_bda.address,
+                   BTIF_HF_SECURITY, BTIF_HF_SERVICES);
+        return BT_STATUS_SUCCESS;
+    }
+
+    return BT_STATUS_BUSY;
+}
+
+static bt_status_t connect( bt_bdaddr_t *bd_addr )
+{
+    CHECK_BTHF_INIT();
+    return btif_queue_connect(UUID_SERVCLASS_AG_HANDSFREE, bd_addr, connect_int);
+}
+
+/*******************************************************************************
+**
+** Function         disconnect
+**
+** Description      disconnect from headset
+**
+** Returns         bt_status_t
+**
+*******************************************************************************/
+static bt_status_t disconnect( bt_bdaddr_t *bd_addr )
+{
+    CHECK_BTHF_INIT();
+
+    int idx = btif_hf_idx_by_bdaddr(bd_addr);
+
+    if ((idx < 0) || (idx >= BTIF_HF_NUM_CB))
+    {
+        BTIF_TRACE_ERROR("%s: Invalid index %d", __FUNCTION__, idx);
+        return BT_STATUS_FAIL;
+    }
+
+    if (is_connected(bd_addr) && (idx != BTIF_HF_INVALID_IDX))
+    {
+        BTA_AgClose(btif_hf_cb[idx].handle);
+        return BT_STATUS_SUCCESS;
+    }
+
+    return BT_STATUS_FAIL;
+}
+
+/*******************************************************************************
+**
+** Function         connect_audio
+**
+** Description     create an audio connection
+**
+** Returns         bt_status_t
+**
+*******************************************************************************/
+static bt_status_t connect_audio( bt_bdaddr_t *bd_addr )
+{
+    CHECK_BTHF_INIT();
+
+    int idx = btif_hf_idx_by_bdaddr(bd_addr);
+
+    if ((idx < 0) || (idx >= BTIF_HF_NUM_CB))
+    {
+        BTIF_TRACE_ERROR("%s: Invalid index %d", __FUNCTION__, idx);
+        return BT_STATUS_FAIL;
+    }
+
+    /* Check if SLC is connected */
+    if (btif_hf_check_if_slc_connected() != BT_STATUS_SUCCESS)
+        return BT_STATUS_NOT_READY;
+
+    if (is_connected(bd_addr) && (idx != BTIF_HF_INVALID_IDX))
+    {
+        BTA_AgAudioOpen(btif_hf_cb[idx].handle);
+
+        /* Inform the application that the audio connection has been initiated successfully */
+        btif_transfer_context(btif_in_hf_generic_evt, BTIF_HFP_CB_AUDIO_CONNECTING,
+                              (char *)bd_addr, sizeof(bt_bdaddr_t), NULL);
+        return BT_STATUS_SUCCESS;
+    }
+
+    return BT_STATUS_FAIL;
+}
+
+/*******************************************************************************
+**
+** Function         disconnect_audio
+**
+** Description      close the audio connection
+**
+** Returns         bt_status_t
+**
+*******************************************************************************/
+static bt_status_t disconnect_audio( bt_bdaddr_t *bd_addr )
+{
+    CHECK_BTHF_INIT();
+
+    int idx = btif_hf_idx_by_bdaddr(bd_addr);
+
+    if ((idx < 0) || (idx >= BTIF_HF_NUM_CB))
+    {
+        BTIF_TRACE_ERROR("%s: Invalid index %d", __FUNCTION__, idx);
+        return BT_STATUS_FAIL;
+    }
+
+    if (is_connected(bd_addr) && (idx != BTIF_HF_INVALID_IDX))
+    {
+        BTA_AgAudioClose(btif_hf_cb[idx].handle);
+        return BT_STATUS_SUCCESS;
+    }
+
+    return BT_STATUS_FAIL;
+}
+
+/*******************************************************************************
+**
+** Function         start_voice_recognition
+**
+** Description      start voice recognition
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+static bt_status_t start_voice_recognition(bt_bdaddr_t *bd_addr)
+{
+    CHECK_BTHF_INIT();
+
+    int idx = btif_hf_idx_by_bdaddr(bd_addr);
+
+    if ((idx < 0) || (idx >= BTIF_HF_NUM_CB))
+    {
+        BTIF_TRACE_ERROR("%s: Invalid index %d", __FUNCTION__, idx);
+        return BT_STATUS_FAIL;
+    }
+
+    if (is_connected(bd_addr) && (idx != BTIF_HF_INVALID_IDX))
+    {
+        if (btif_hf_cb[idx].peer_feat & BTA_AG_PEER_FEAT_VREC)
+        {
+            tBTA_AG_RES_DATA ag_res;
+            memset(&ag_res, 0, sizeof(ag_res));
+            ag_res.state = 1;
+            BTA_AgResult (btif_hf_cb[idx].handle, BTA_AG_BVRA_RES, &ag_res);
+
+            return BT_STATUS_SUCCESS;
+        }
+        else
+        {
+            return BT_STATUS_UNSUPPORTED;
+        }
+    }
+
+    return BT_STATUS_NOT_READY;
+}
+
+/*******************************************************************************
+**
+** Function         stop_voice_recognition
+**
+** Description      stop voice recognition
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+static bt_status_t stop_voice_recognition(bt_bdaddr_t *bd_addr)
+{
+    CHECK_BTHF_INIT();
+
+    int idx = btif_hf_idx_by_bdaddr(bd_addr);
+
+    if ((idx < 0) || (idx >= BTIF_HF_NUM_CB))
+    {
+        BTIF_TRACE_ERROR("%s: Invalid index %d", __FUNCTION__, idx);
+        return BT_STATUS_FAIL;
+    }
+
+    if (is_connected(bd_addr) && (idx != BTIF_HF_INVALID_IDX))
+    {
+        if (btif_hf_cb[idx].peer_feat & BTA_AG_PEER_FEAT_VREC)
+        {
+            tBTA_AG_RES_DATA ag_res;
+            memset(&ag_res, 0, sizeof(ag_res));
+            ag_res.state = 0;
+            BTA_AgResult (btif_hf_cb[idx].handle, BTA_AG_BVRA_RES, &ag_res);
+
+            return BT_STATUS_SUCCESS;
+        }
+        else
+        {
+            return BT_STATUS_UNSUPPORTED;
+        }
+    }
+
+    return BT_STATUS_NOT_READY;
+}
+
+/*******************************************************************************
+**
+** Function         volume_control
+**
+** Description      volume control
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+static bt_status_t volume_control(bthf_volume_type_t type, int volume,
+                                                       bt_bdaddr_t *bd_addr)
+{
+    CHECK_BTHF_INIT();
+
+    int idx = btif_hf_idx_by_bdaddr(bd_addr);
+
+    if ((idx < 0) || (idx >= BTIF_HF_NUM_CB))
+    {
+        BTIF_TRACE_ERROR("%s: Invalid index %d", __FUNCTION__, idx);
+        return BT_STATUS_FAIL;
+    }
+
+    tBTA_AG_RES_DATA ag_res;
+    memset(&ag_res, 0, sizeof(tBTA_AG_RES_DATA));
+    if (is_connected(bd_addr) && (idx != BTIF_HF_INVALID_IDX))
+    {
+        ag_res.num = volume;
+        BTA_AgResult(btif_hf_cb[idx].handle,
+                     (type == BTHF_VOLUME_TYPE_SPK) ? BTA_AG_SPK_RES : BTA_AG_MIC_RES,
+                     &ag_res);
+        return BT_STATUS_SUCCESS;
+    }
+
+    return BT_STATUS_FAIL;
+}
+
+/*******************************************************************************
+**
+** Function         device_status_notification
+**
+** Description      Combined device status change notification
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+static bt_status_t device_status_notification(bthf_network_state_t ntk_state,
+                          bthf_service_type_t svc_type, int signal, int batt_chg)
+{
+    CHECK_BTHF_INIT();
+
+    if (is_connected(NULL))
+    {
+        /* send all indicators to BTA.
+        ** BTA will make sure no duplicates are sent out
+        */
+        send_indicator_update(BTA_AG_IND_SERVICE,
+                              (ntk_state == BTHF_NETWORK_STATE_AVAILABLE) ? 1 : 0);
+        send_indicator_update(BTA_AG_IND_ROAM,
+                             (svc_type == BTHF_SERVICE_TYPE_HOME) ? 0 : 1);
+        send_indicator_update(BTA_AG_IND_SIGNAL, signal);
+        send_indicator_update(BTA_AG_IND_BATTCHG, batt_chg);
+        return BT_STATUS_SUCCESS;
+    }
+
+    return BT_STATUS_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         cops_response
+**
+** Description      Response for COPS command
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+static bt_status_t cops_response(const char *cops, bt_bdaddr_t *bd_addr)
+{
+    CHECK_BTHF_INIT();
+
+    int idx = btif_hf_idx_by_bdaddr(bd_addr);
+
+    if ((idx < 0) || (idx >= BTIF_HF_NUM_CB))
+    {
+        BTIF_TRACE_ERROR("%s: Invalid index %d", __FUNCTION__, idx);
+        return BT_STATUS_FAIL;
+    }
+
+    if (is_connected(bd_addr) && (idx != BTIF_HF_INVALID_IDX))
+    {
+        tBTA_AG_RES_DATA    ag_res;
+
+        /* Format the response */
+        sprintf (ag_res.str, "0,0,\"%.16s\"", cops);
+        ag_res.ok_flag = BTA_AG_OK_DONE;
+
+        BTA_AgResult (btif_hf_cb[idx].handle, BTA_AG_COPS_RES, &ag_res);
+        return BT_STATUS_SUCCESS;
+    }
+    return BT_STATUS_FAIL;
+}
+
+/*******************************************************************************
+**
+** Function         cind_response
+**
+** Description      Response for CIND command
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+static bt_status_t cind_response(int svc, int num_active, int num_held,
+                                     bthf_call_state_t call_setup_state,
+                                     int signal, int roam, int batt_chg,
+                                                    bt_bdaddr_t *bd_addr)
+{
+    CHECK_BTHF_INIT();
+
+    int idx = btif_hf_idx_by_bdaddr(bd_addr);
+
+    if ((idx < 0) || (idx >= BTIF_HF_NUM_CB))
+    {
+        BTIF_TRACE_ERROR("%s: Invalid index %d", __FUNCTION__, idx);
+        return BT_STATUS_FAIL;
+    }
+
+    if (is_connected(bd_addr) && (idx != BTIF_HF_INVALID_IDX))
+    {
+        tBTA_AG_RES_DATA    ag_res;
+
+        memset (&ag_res, 0, sizeof (ag_res));
+        /* per the errata 2043, call=1 implies atleast one call is in progress (active/held)
+        ** https://www.bluetooth.org/errata/errata_view.cfm?errata_id=2043
+        **/
+        sprintf (ag_res.str, "%d,%d,%d,%d,%d,%d,%d",
+                (num_active + num_held) ? 1 : 0,                       /* Call state */
+                callstate_to_callsetup(call_setup_state),              /* Callsetup state */
+                svc,                                                   /* network service */
+                signal,                                                /* Signal strength */
+                roam,                                                  /* Roaming indicator */
+                batt_chg,                                              /* Battery level */
+                ((num_held == 0) ? 0 : ((num_active == 0) ? 2 : 1))); /* Call held */
+
+        BTA_AgResult (btif_hf_cb[idx].handle, BTA_AG_CIND_RES, &ag_res);
+
+        return BT_STATUS_SUCCESS;
+    }
+
+    return BT_STATUS_FAIL;
+}
+
+/*******************************************************************************
+**
+** Function         formatted_at_response
+**
+** Description      Pre-formatted AT response, typically in response to unknown AT cmd
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+static bt_status_t formatted_at_response(const char *rsp, bt_bdaddr_t *bd_addr)
+{
+    CHECK_BTHF_INIT();
+    tBTA_AG_RES_DATA    ag_res;
+    int idx = btif_hf_idx_by_bdaddr(bd_addr);
+
+    if ((idx < 0) || (idx >= BTIF_HF_NUM_CB))
+    {
+        BTIF_TRACE_ERROR("%s: Invalid index %d", __FUNCTION__, idx);
+        return BT_STATUS_FAIL;
+    }
+
+    if (is_connected(bd_addr) && (idx != BTIF_HF_INVALID_IDX))
+    {
+        /* Format the response and send */
+        memset (&ag_res, 0, sizeof (ag_res));
+        strncpy(ag_res.str, rsp, BTA_AG_AT_MAX_LEN);
+        BTA_AgResult (btif_hf_cb[idx].handle, BTA_AG_UNAT_RES, &ag_res);
+
+        return BT_STATUS_SUCCESS;
+    }
+
+    return BT_STATUS_FAIL;
+}
+
+/*******************************************************************************
+**
+** Function         at_response
+**
+** Description      ok/error response
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+static bt_status_t at_response(bthf_at_response_t response_code,
+                                    int error_code, bt_bdaddr_t *bd_addr)
+{
+    CHECK_BTHF_INIT();
+
+    int idx = btif_hf_idx_by_bdaddr(bd_addr);
+
+    if ((idx < 0) || (idx >= BTIF_HF_NUM_CB))
+    {
+        BTIF_TRACE_ERROR("%s: Invalid index %d", __FUNCTION__, idx);
+        return BT_STATUS_FAIL;
+    }
+
+    if (is_connected(bd_addr) && (idx != BTIF_HF_INVALID_IDX))
+    {
+        send_at_result((response_code == BTHF_AT_RESPONSE_OK) ? BTA_AG_OK_DONE
+                        : BTA_AG_OK_ERROR, error_code, idx);
+        return BT_STATUS_SUCCESS;
+    }
+
+    return BT_STATUS_FAIL;
+}
+
+/*******************************************************************************
+**
+** Function         clcc_response
+**
+** Description      response for CLCC command
+**                  Can be iteratively called for each call index. Call index
+**                  of 0 will be treated as NULL termination (Completes response)
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+static bt_status_t clcc_response(int index, bthf_call_direction_t dir,
+                               bthf_call_state_t state, bthf_call_mode_t mode,
+                               bthf_call_mpty_type_t mpty, const char *number,
+                               bthf_call_addrtype_t type, bt_bdaddr_t *bd_addr)
+{
+    CHECK_BTHF_INIT();
+
+    int idx = btif_hf_idx_by_bdaddr(bd_addr);
+
+    if ((idx < 0) || (idx >= BTIF_HF_NUM_CB))
+    {
+        BTIF_TRACE_ERROR("%s: Invalid index %d", __FUNCTION__, idx);
+        return BT_STATUS_FAIL;
+    }
+
+    if (is_connected(bd_addr) && (idx != BTIF_HF_INVALID_IDX))
+    {
+        tBTA_AG_RES_DATA    ag_res;
+        int                 xx;
+
+        memset (&ag_res, 0, sizeof (ag_res));
+
+        /* Format the response */
+        if (index == 0)
+        {
+            ag_res.ok_flag = BTA_AG_OK_DONE;
+        }
+        else
+        {
+            BTIF_TRACE_EVENT("clcc_response: [%d] dir %d state %d mode %d number = %s type = %d",
+                          index, dir, state, mode, number, type);
+            xx = sprintf (ag_res.str, "%d,%d,%d,%d,%d",
+                         index, dir, state, mode, mpty);
+
+            if (number)
+            {
+                if ((type == BTHF_CALL_ADDRTYPE_INTERNATIONAL) && (*number != '+'))
+                    sprintf (&ag_res.str[xx], ",\"+%s\",%d", number, type);
+                else
+                    sprintf (&ag_res.str[xx], ",\"%s\",%d", number, type);
+            }
+        }
+        BTA_AgResult (btif_hf_cb[idx].handle, BTA_AG_CLCC_RES, &ag_res);
+
+        return BT_STATUS_SUCCESS;
+    }
+
+    return BT_STATUS_FAIL;
+}
+
+/*******************************************************************************
+**
+** Function         phone_state_change
+**
+** Description      notify of a call state change
+**                  number & type: valid only for incoming & waiting call
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+
+static bt_status_t phone_state_change(int num_active, int num_held, bthf_call_state_t call_setup_state,
+                                            const char *number, bthf_call_addrtype_t type)
+{
+    tBTA_AG_RES res = 0xff;
+    tBTA_AG_RES_DATA ag_res;
+    bt_status_t status = BT_STATUS_SUCCESS;
+    BOOLEAN activeCallUpdated = FALSE;
+    int idx, i;
+
+    /* hf_idx is index of connected HS that sent ATA/BLDN,
+            otherwise index of latest connected HS */
+    if (hf_idx != BTIF_HF_INVALID_IDX)
+        idx = hf_idx;
+    else
+        idx = btif_hf_latest_connected_idx();
+
+    BTIF_TRACE_DEBUG("phone_state_change: idx = %d", idx);
+
+    /* Check if SLC is connected */
+    if (btif_hf_check_if_slc_connected() != BT_STATUS_SUCCESS)
+        return BT_STATUS_NOT_READY;
+
+    BTIF_TRACE_DEBUG("phone_state_change: num_active=%d [prev: %d]  num_held=%d[prev: %d]"
+                      " call_setup=%s [prev: %s]", num_active, btif_hf_cb[idx].num_active,
+                       num_held, btif_hf_cb[idx].num_held, dump_hf_call_state(call_setup_state),
+                       dump_hf_call_state(btif_hf_cb[idx].call_setup_state));
+
+    /* if all indicators are 0, send end call and return */
+    if (num_active == 0 && num_held == 0 && call_setup_state == BTHF_CALL_STATE_IDLE)
+    {
+        BTIF_TRACE_DEBUG("%s: Phone on hook", __FUNCTION__);
+
+        /* record call termination timestamp  if  there was an active/held call  or
+                   callsetup state > BTHF_CALL_STATE_IDLE */
+        if ((btif_hf_cb[idx].call_setup_state != BTHF_CALL_STATE_IDLE ) ||
+                 (btif_hf_cb[idx].num_active) ||(btif_hf_cb[idx].num_held))
+        {
+            BTIF_TRACE_DEBUG("%s: Record call termination timestamp", __FUNCTION__);
+            clock_gettime(CLOCK_MONOTONIC, &btif_hf_cb[0].call_end_timestamp);
+        }
+        BTA_AgResult (BTA_AG_HANDLE_ALL, BTA_AG_END_CALL_RES, NULL);
+        hf_idx = BTIF_HF_INVALID_IDX;
+
+        /* if held call was present, reset that as well */
+        if (btif_hf_cb[idx].num_held)
+            send_indicator_update(BTA_AG_IND_CALLHELD, 0);
+
+        goto update_call_states;
+    }
+
+    /* active state can change when:
+    ** 1. an outgoing/incoming call was answered
+    ** 2. an held was resumed
+    ** 3. without callsetup notifications, call became active
+    ** (3) can happen if call is active and a headset connects to us
+    **
+    ** In the case of (3), we will have to notify the stack of an active
+    ** call, instead of sending an indicator update. This will also
+    ** force the SCO to be setup. Handle this special case here prior to
+    ** call setup handling
+    */
+    if ( ((num_active + num_held) > 0) && (btif_hf_cb[idx].num_active == 0) && (btif_hf_cb[idx].num_held == 0) &&
+         (btif_hf_cb[idx].call_setup_state == BTHF_CALL_STATE_IDLE) )
+    {
+        BTIF_TRACE_DEBUG("%s: Active/Held call notification received without call setup update",
+                          __FUNCTION__);
+
+        memset(&ag_res, 0, sizeof(tBTA_AG_RES_DATA));
+        ag_res.audio_handle = btif_hf_cb[idx].handle;
+        /* Addition call setup with the Active call
+        ** CIND response should have been updated.
+        ** just open SCO conenction.
+        */
+        if (call_setup_state != BTHF_CALL_STATE_IDLE)
+           res = BTA_AG_MULTI_CALL_RES;
+        else
+           res = BTA_AG_OUT_CALL_CONN_RES;
+        BTA_AgResult(BTA_AG_HANDLE_ALL, res, &ag_res);
+        activeCallUpdated = TRUE;
+    }
+
+    /* Ringing call changed? */
+    if (call_setup_state != btif_hf_cb[idx].call_setup_state)
+    {
+        BTIF_TRACE_DEBUG("%s: Call setup states changed. old: %s new: %s",
+            __FUNCTION__, dump_hf_call_state(btif_hf_cb[idx].call_setup_state),
+            dump_hf_call_state(call_setup_state));
+        memset(&ag_res, 0, sizeof(tBTA_AG_RES_DATA));
+
+        switch (call_setup_state)
+        {
+            case BTHF_CALL_STATE_IDLE:
+            {
+                switch (btif_hf_cb[idx].call_setup_state)
+                {
+                    case BTHF_CALL_STATE_INCOMING:
+                        if (num_active > btif_hf_cb[idx].num_active)
+                        {
+                            res = BTA_AG_IN_CALL_CONN_RES;
+                            ag_res.audio_handle = btif_hf_cb[idx].handle;
+                        }
+                        else if (num_held > btif_hf_cb[idx].num_held)
+                            res = BTA_AG_IN_CALL_HELD_RES;
+                        else
+                            res = BTA_AG_CALL_CANCEL_RES;
+                        break;
+                    case BTHF_CALL_STATE_DIALING:
+                    case BTHF_CALL_STATE_ALERTING:
+                        if (num_active > btif_hf_cb[idx].num_active)
+                        {
+                            ag_res.audio_handle = BTA_AG_HANDLE_SCO_NO_CHANGE;
+                            res = BTA_AG_OUT_CALL_CONN_RES;
+                        }
+                        else
+                            res = BTA_AG_CALL_CANCEL_RES;
+                        break;
+                    default:
+                        BTIF_TRACE_ERROR("%s: Incorrect Call setup state transition", __FUNCTION__);
+                        status = BT_STATUS_PARM_INVALID;
+                        break;
+                }
+            } break;
+
+            case BTHF_CALL_STATE_INCOMING:
+                if (num_active || num_held)
+                    res = BTA_AG_CALL_WAIT_RES;
+                else
+                    res = BTA_AG_IN_CALL_RES;
+                if (number)
+                {
+                    int xx = 0;
+                    if ((type == BTHF_CALL_ADDRTYPE_INTERNATIONAL) && (*number != '+'))
+                        xx = sprintf (ag_res.str, "\"+%s\"", number);
+                    else
+                        xx = sprintf (ag_res.str, "\"%s\"", number);
+                    ag_res.num = type;
+
+                    if (res == BTA_AG_CALL_WAIT_RES)
+                        sprintf(&ag_res.str[xx], ",%d", type);
+                }
+                break;
+            case BTHF_CALL_STATE_DIALING:
+                if (!(num_active + num_held))
+                    ag_res.audio_handle = btif_hf_cb[idx].handle;
+                res = BTA_AG_OUT_CALL_ORIG_RES;
+                break;
+            case BTHF_CALL_STATE_ALERTING:
+                /* if we went from idle->alert, force SCO setup here. dialing usually triggers it */
+                if ((btif_hf_cb[idx].call_setup_state == BTHF_CALL_STATE_IDLE) &&
+                        !(num_active + num_held))
+                    ag_res.audio_handle = btif_hf_cb[idx].handle;
+                res = BTA_AG_OUT_CALL_ALERT_RES;
+                break;
+            default:
+                BTIF_TRACE_ERROR("%s: Incorrect new ringing call state", __FUNCTION__);
+                status = BT_STATUS_PARM_INVALID;
+                break;
+        }
+        BTIF_TRACE_DEBUG("%s: Call setup state changed. res=%d, audio_handle=%d", __FUNCTION__, res, ag_res.audio_handle);
+
+        if (res)
+            BTA_AgResult(BTA_AG_HANDLE_ALL, res, &ag_res);
+
+        /* if call setup is idle, we have already updated call indicator, jump out */
+        if (call_setup_state == BTHF_CALL_STATE_IDLE)
+        {
+            /* check & update callheld */
+            if ((num_held > 0) && (num_active > 0))
+                send_indicator_update(BTA_AG_IND_CALLHELD, 1);
+            goto update_call_states;
+        }
+    }
+
+    memset(&ag_res, 0, sizeof(tBTA_AG_RES_DATA));
+
+    /* per the errata 2043, call=1 implies atleast one call is in progress (active/held)
+    ** https://www.bluetooth.org/errata/errata_view.cfm?errata_id=2043
+    ** Handle call indicator change
+    **/
+    if (!activeCallUpdated && ((num_active + num_held) !=
+                 (btif_hf_cb[idx].num_active + btif_hf_cb[idx].num_held)) )
+    {
+        BTIF_TRACE_DEBUG("%s: Active call states changed. old: %d new: %d", __FUNCTION__, btif_hf_cb[idx].num_active, num_active);
+        send_indicator_update(BTA_AG_IND_CALL, ((num_active + num_held) > 0) ? 1 : 0);
+    }
+
+    /* Held Changed? */
+    if (num_held != btif_hf_cb[idx].num_held  ||
+        ((num_active == 0) && ((num_held + btif_hf_cb[idx].num_held) > 1)))
+    {
+        BTIF_TRACE_DEBUG("%s: Held call states changed. old: %d new: %d",
+                        __FUNCTION__, btif_hf_cb[idx].num_held, num_held);
+        send_indicator_update(BTA_AG_IND_CALLHELD, ((num_held == 0) ? 0 : ((num_active == 0) ? 2 : 1)));
+    }
+
+    /* Calls Swapped? */
+    if ( (call_setup_state == btif_hf_cb[idx].call_setup_state) &&
+         (num_active && num_held) &&
+         (num_active == btif_hf_cb[idx].num_active) &&
+         (num_held == btif_hf_cb[idx].num_held) )
+    {
+        BTIF_TRACE_DEBUG("%s: Calls swapped", __FUNCTION__);
+        send_indicator_update(BTA_AG_IND_CALLHELD, 1);
+    }
+
+update_call_states:
+    for (i = 0; i < btif_max_hf_clients; i++)
+    {
+        btif_hf_cb[i].num_active = num_active;
+        btif_hf_cb[i].num_held = num_held;
+        btif_hf_cb[i].call_setup_state = call_setup_state;
+    }
+    return status;
+}
+
+/*******************************************************************************
+**
+** Function         btif_hf_is_call_idle
+**
+** Description      returns true if no call is in progress
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+BOOLEAN btif_hf_is_call_idle()
+{
+    if (bt_hf_callbacks == NULL)
+        return TRUE;
+
+    for (int i = 0; i < btif_max_hf_clients; ++i)
+    {
+        if ((btif_hf_cb[i].call_setup_state != BTHF_CALL_STATE_IDLE)
+            || ((btif_hf_cb[i].num_held + btif_hf_cb[i].num_active) > 0))
+            return FALSE;
+    }
+
+    return TRUE;
+}
+
+/*******************************************************************************
+**
+** Function         btif_hf_call_terminated_recently
+**
+** Description      Checks if a call has been terminated
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+BOOLEAN btif_hf_call_terminated_recently()
+{
+      struct timespec         now;
+
+      clock_gettime(CLOCK_MONOTONIC, &now);
+      if (now.tv_sec < btif_hf_cb[0].call_end_timestamp.tv_sec +
+                                  BTIF_HF_CALL_END_TIMEOUT)
+      {
+          return TRUE;
+      }
+      else
+      {
+          btif_hf_cb[0].call_end_timestamp.tv_sec = 0;
+          return FALSE;
+      }
+}
+
+/*******************************************************************************
+**
+** Function         cleanup
+**
+** Description      Closes the HF interface
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+static void  cleanup( void )
+{
+    BTIF_TRACE_EVENT("%s", __FUNCTION__);
+
+    if (bt_hf_callbacks)
+    {
+        btif_disable_service(BTA_HFP_SERVICE_ID);
+        bt_hf_callbacks = NULL;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         configure_wbs
+**
+** Description      set to over-ride the current WBS configuration.
+**                  It will not send codec setting cmd to the controller now.
+**                  It just change the configure.
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+static bt_status_t  configure_wbs( bt_bdaddr_t *bd_addr , bthf_wbs_config_t config )
+{
+    CHECK_BTHF_INIT();
+
+    int idx = btif_hf_idx_by_bdaddr(bd_addr);
+
+    if ((idx < 0) || (idx >= BTIF_HF_NUM_CB))
+    {
+        BTIF_TRACE_ERROR("%s: Invalid index %d", __FUNCTION__, idx);
+        return BT_STATUS_FAIL;
+    }
+
+    BTIF_TRACE_EVENT("%s config is %d", __FUNCTION__,config);
+    if (config == BTHF_WBS_YES)
+        BTA_AgSetCodec(btif_hf_cb[idx].handle,BTA_AG_CODEC_MSBC);
+    else if(config == BTHF_WBS_NO)
+        BTA_AgSetCodec(btif_hf_cb[idx].handle,BTA_AG_CODEC_CVSD);
+    else
+        BTA_AgSetCodec(btif_hf_cb[idx].handle,BTA_AG_CODEC_NONE);
+
+    return BT_STATUS_SUCCESS;
+}
+#ifdef BLUETOOTH_RTK
+static const bthf_interface_t bthfInterface = {
+    .size = sizeof(bthfInterface),
+    .init = init,
+    .connect = connect,
+    .disconnect = disconnect,
+    .connect_audio = connect_audio,
+    .disconnect_audio = disconnect_audio,
+    .start_voice_recognition = start_voice_recognition,
+    .stop_voice_recognition = stop_voice_recognition,
+    .volume_control = volume_control,
+    .device_status_notification = device_status_notification,
+    .cops_response = cops_response,
+    .cind_response = cind_response,
+    .formatted_at_response = formatted_at_response,
+    .at_response = at_response,
+    .clcc_response = clcc_response,
+    .phone_state_change = phone_state_change,
+    .cleanup = cleanup,
+    .configure_wbs = configure_wbs,
+};
+#else
+static const bthf_interface_t bthfInterface = {
+    sizeof(bthfInterface),
+    init,
+    connect,
+    disconnect,
+    connect_audio,
+    disconnect_audio,
+    start_voice_recognition,
+    stop_voice_recognition,
+    volume_control,
+    device_status_notification,
+    cops_response,
+    cind_response,
+    formatted_at_response,
+    at_response,
+    clcc_response,
+    phone_state_change,
+    cleanup,
+    configure_wbs,
+};
+#endif
+/*******************************************************************************
+**
+** Function         btif_hf_execute_service
+**
+** Description      Initializes/Shuts down the service
+**
+** Returns          BT_STATUS_SUCCESS on success, BT_STATUS_FAIL otherwise
+**
+*******************************************************************************/
+bt_status_t btif_hf_execute_service(BOOLEAN b_enable)
+{
+     char * p_service_names[] = BTIF_HF_SERVICE_NAMES;
+     int i;
+     if (b_enable)
+     {
+          /* Enable and register with BTA-AG */
+          BTA_AgEnable (BTA_AG_PARSE, bte_hf_evt);
+              for (i = 0; i < btif_max_hf_clients; i++)
+              {
+                  BTA_AgRegister(BTIF_HF_SERVICES, BTIF_HF_SECURITY,
+                      BTIF_HF_FEATURES, p_service_names, bthf_hf_id[i]);
+              }
+     }
+     else {
+         /* De-register AG */
+         for (i = 0; i < btif_max_hf_clients; i++)
+         {
+             BTA_AgDeregister(btif_hf_cb[i].handle);
+         }
+         /* Disable AG */
+         BTA_AgDisable();
+     }
+     return BT_STATUS_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         btif_hf_get_interface
+**
+** Description      Get the hf callback interface
+**
+** Returns          bthf_interface_t
+**
+*******************************************************************************/
+const bthf_interface_t *btif_hf_get_interface()
+{
+    BTIF_TRACE_EVENT("%s", __FUNCTION__);
+    return &bthfInterface;
+}
diff --git a/rtkbt/code/bt/btif/src/btif_hf_client.c b/rtkbt/code/bt/btif/src/btif_hf_client.c
new file mode 100755
index 0000000..d713456
--- /dev/null
+++ b/rtkbt/code/bt/btif/src/btif_hf_client.c
@@ -0,0 +1,990 @@
+/******************************************************************************
+ *
+ *  Copyright (c) 2014 The Android Open Source Project
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/************************************************************************************
+ *
+ *  Filename:      btif_hf_client.c
+ *
+ *  Description:   Handsfree Profile (HF role) Bluetooth Interface
+ *
+ *
+ ***********************************************************************************/
+
+#define LOG_TAG "bt_btif_hfc"
+
+#include <stdlib.h>
+#include <string.h>
+
+#include <hardware/bluetooth.h>
+#include <hardware/bt_hf_client.h>
+
+#include "bt_utils.h"
+#include "bta_hf_client_api.h"
+#include "btcore/include/bdaddr.h"
+#include "btif_common.h"
+#include "btif_profile_queue.h"
+#include "btif_util.h"
+#include "osi/include/properties.h"
+
+/************************************************************************************
+**  Constants & Macros
+************************************************************************************/
+
+#ifndef BTIF_HF_CLIENT_SERVICE_NAME
+#define BTIF_HF_CLIENT_SERVICE_NAME ("Handsfree")
+#endif
+
+#ifndef BTIF_HF_CLIENT_SECURITY
+#define BTIF_HF_CLIENT_SECURITY    (BTA_SEC_AUTHENTICATE | BTA_SEC_ENCRYPT)
+#endif
+
+#ifndef BTIF_HF_CLIENT_FEATURES
+#define BTIF_HF_CLIENT_FEATURES   ( BTA_HF_CLIENT_FEAT_ECNR  | \
+                                    BTA_HF_CLIENT_FEAT_3WAY  | \
+                                    BTA_HF_CLIENT_FEAT_CLI   | \
+                                    BTA_HF_CLIENT_FEAT_VREC  | \
+                                    BTA_HF_CLIENT_FEAT_VOL   | \
+                                    BTA_HF_CLIENT_FEAT_ECS   | \
+                                    BTA_HF_CLIENT_FEAT_ECC   | \
+                                    BTA_HF_CLIENT_FEAT_CODEC)
+#endif
+
+/************************************************************************************
+**  Local type definitions
+************************************************************************************/
+
+/************************************************************************************
+**  Static variables
+************************************************************************************/
+static bthf_client_callbacks_t *bt_hf_client_callbacks = NULL;
+static UINT32 btif_hf_client_features = 0;
+
+char btif_hf_client_version[PROPERTY_VALUE_MAX];
+
+#define CHECK_BTHF_CLIENT_INIT() if (bt_hf_client_callbacks == NULL)\
+    {\
+        BTIF_TRACE_WARNING("BTHF CLIENT: %s: not initialized", __FUNCTION__);\
+        return BT_STATUS_NOT_READY;\
+    }\
+    else\
+    {\
+        BTIF_TRACE_EVENT("BTHF CLIENT: %s", __FUNCTION__);\
+    }
+
+#define CHECK_BTHF_CLIENT_SLC_CONNECTED() if (bt_hf_client_callbacks == NULL)\
+    {\
+        BTIF_TRACE_WARNING("BTHF CLIENT: %s: not initialized", __FUNCTION__);\
+        return BT_STATUS_NOT_READY;\
+    }\
+    else if (btif_hf_client_cb.state != BTHF_CLIENT_CONNECTION_STATE_SLC_CONNECTED)\
+    {\
+        BTIF_TRACE_WARNING("BTHF CLIENT: %s: SLC connection not up. state=%s",\
+                           __FUNCTION__, \
+                           dump_hf_conn_state(btif_hf_client_cb.state));\
+        return BT_STATUS_NOT_READY;\
+    }\
+    else\
+    {\
+        BTIF_TRACE_EVENT("BTHF CLIENT: %s", __FUNCTION__);\
+    }
+
+/* BTIF-HF control block to map bdaddr to BTA handle */
+typedef struct
+{
+    UINT16                          handle;
+    bt_bdaddr_t                     connected_bda;
+    bthf_client_connection_state_t  state;
+    bthf_client_vr_state_t          vr_state;
+    tBTA_HF_CLIENT_PEER_FEAT        peer_feat;
+    tBTA_HF_CLIENT_CHLD_FEAT        chld_feat;
+} btif_hf_client_cb_t;
+
+static btif_hf_client_cb_t btif_hf_client_cb;
+
+/************************************************************************************
+**  Static functions
+************************************************************************************/
+
+/*******************************************************************************
+**
+** Function        btif_in_hf_client_generic_evt
+**
+** Description     Processes generic events to be sent to JNI that are not triggered from the BTA.
+**                 Always runs in BTIF context
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btif_in_hf_client_generic_evt(UINT16 event, char *p_param)
+{
+    UNUSED(p_param);
+
+    BTIF_TRACE_EVENT("%s: event=%d", __FUNCTION__, event);
+    switch (event) {
+        case BTIF_HF_CLIENT_CB_AUDIO_CONNECTING:
+        {
+            HAL_CBACK(bt_hf_client_callbacks, audio_state_cb, (bthf_client_audio_state_t)BTHF_AUDIO_STATE_CONNECTING,
+                      &btif_hf_client_cb.connected_bda);
+        } break;
+        default:
+        {
+            BTIF_TRACE_WARNING("%s : Unknown event 0x%x", __FUNCTION__, event);
+        }
+        break;
+    }
+}
+
+/************************************************************************************
+**  Externs
+************************************************************************************/
+
+/************************************************************************************
+**  Functions
+************************************************************************************/
+
+static void clear_state(void)
+{
+    memset(&btif_hf_client_cb, 0, sizeof(btif_hf_client_cb_t));
+}
+
+static BOOLEAN is_connected(bt_bdaddr_t *bd_addr)
+{
+    if (((btif_hf_client_cb.state == BTHF_CLIENT_CONNECTION_STATE_CONNECTED) ||
+            (btif_hf_client_cb.state == BTHF_CLIENT_CONNECTION_STATE_SLC_CONNECTED))&&
+        ((bd_addr == NULL) || (bdcmp(bd_addr->address, btif_hf_client_cb.connected_bda.address) == 0)))
+        return TRUE;
+    return FALSE;
+}
+
+/*****************************************************************************
+**   Section name (Group of functions)
+*****************************************************************************/
+
+/*****************************************************************************
+**
+**   btif hf api functions (no context switch)
+**
+*****************************************************************************/
+
+/*******************************************************************************
+**
+** Function         btif_hf_client_init
+**
+** Description     initializes the hf interface
+**
+** Returns         bt_status_t
+**
+*******************************************************************************/
+static bt_status_t init( bthf_client_callbacks_t* callbacks )
+{
+    BTIF_TRACE_EVENT("%s", __FUNCTION__);
+
+    bt_hf_client_callbacks = callbacks;
+
+    btif_enable_service(BTA_HFP_HS_SERVICE_ID);
+
+    clear_state();
+
+    return BT_STATUS_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         connect
+**
+** Description     connect to audio gateway
+**
+** Returns         bt_status_t
+**
+*******************************************************************************/
+static bt_status_t connect_int( bt_bdaddr_t *bd_addr, uint16_t uuid )
+{
+    if (is_connected(bd_addr))
+        return BT_STATUS_BUSY;
+
+    btif_hf_client_cb.state = BTHF_CLIENT_CONNECTION_STATE_CONNECTING;
+    bdcpy(btif_hf_client_cb.connected_bda.address, bd_addr->address);
+
+    BTA_HfClientOpen(btif_hf_client_cb.handle, btif_hf_client_cb.connected_bda.address,
+               BTIF_HF_CLIENT_SECURITY);
+
+    return BT_STATUS_SUCCESS;
+}
+
+static bt_status_t connect( bt_bdaddr_t *bd_addr )
+{
+    BTIF_TRACE_EVENT("HFP Client version is  %s", btif_hf_client_version);
+    CHECK_BTHF_CLIENT_INIT();
+    return btif_queue_connect(UUID_SERVCLASS_HF_HANDSFREE, bd_addr, connect_int);
+
+}
+
+/*******************************************************************************
+**
+** Function         disconnect
+**
+** Description      disconnect from audio gateway
+**
+** Returns         bt_status_t
+**
+*******************************************************************************/
+static bt_status_t disconnect( bt_bdaddr_t *bd_addr )
+{
+    CHECK_BTHF_CLIENT_INIT();
+
+    if (is_connected(bd_addr))
+    {
+        BTA_HfClientClose(btif_hf_client_cb.handle);
+        return BT_STATUS_SUCCESS;
+    }
+
+    return BT_STATUS_FAIL;
+}
+
+/*******************************************************************************
+**
+** Function         connect_audio
+**
+** Description     create an audio connection
+**
+** Returns         bt_status_t
+**
+*******************************************************************************/
+static bt_status_t connect_audio( bt_bdaddr_t *bd_addr )
+{
+    CHECK_BTHF_CLIENT_SLC_CONNECTED();
+
+    if (is_connected(bd_addr))
+    {
+        if ((BTIF_HF_CLIENT_FEATURES & BTA_HF_CLIENT_FEAT_CODEC) &&
+                (btif_hf_client_cb.peer_feat & BTA_HF_CLIENT_PEER_CODEC))
+        {
+            BTA_HfClientSendAT(btif_hf_client_cb.handle, BTA_HF_CLIENT_AT_CMD_BCC, 0, 0, NULL);
+        }
+        else
+        {
+            BTA_HfClientAudioOpen(btif_hf_client_cb.handle);
+        }
+
+        /* Inform the application that the audio connection has been initiated successfully */
+        btif_transfer_context(btif_in_hf_client_generic_evt, BTIF_HF_CLIENT_CB_AUDIO_CONNECTING,
+                              (char *)bd_addr, sizeof(bt_bdaddr_t), NULL);
+        return BT_STATUS_SUCCESS;
+    }
+
+    return BT_STATUS_FAIL;
+}
+
+/*******************************************************************************
+**
+** Function         disconnect_audio
+**
+** Description      close the audio connection
+**
+** Returns         bt_status_t
+**
+*******************************************************************************/
+static bt_status_t disconnect_audio( bt_bdaddr_t *bd_addr )
+{
+    CHECK_BTHF_CLIENT_SLC_CONNECTED();
+
+    if (is_connected(bd_addr))
+    {
+        BTA_HfClientAudioClose(btif_hf_client_cb.handle);
+        return BT_STATUS_SUCCESS;
+    }
+
+    return BT_STATUS_FAIL;
+}
+
+/*******************************************************************************
+**
+** Function         start_voice_recognition
+**
+** Description      start voice recognition
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+static bt_status_t start_voice_recognition()
+{
+    CHECK_BTHF_CLIENT_SLC_CONNECTED();
+
+    if (btif_hf_client_cb.peer_feat & BTA_HF_CLIENT_PEER_FEAT_VREC)
+    {
+        BTA_HfClientSendAT(btif_hf_client_cb.handle, BTA_HF_CLIENT_AT_CMD_BVRA, 1, 0, NULL);
+
+        return BT_STATUS_SUCCESS;
+    }
+
+    return BT_STATUS_UNSUPPORTED;
+}
+
+/*******************************************************************************
+**
+** Function         stop_voice_recognition
+**
+** Description      stop voice recognition
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+static bt_status_t stop_voice_recognition()
+{
+    CHECK_BTHF_CLIENT_SLC_CONNECTED();
+
+    if (btif_hf_client_cb.peer_feat & BTA_HF_CLIENT_PEER_FEAT_VREC)
+    {
+        BTA_HfClientSendAT(btif_hf_client_cb.handle, BTA_HF_CLIENT_AT_CMD_BVRA, 0, 0, NULL);
+
+        return BT_STATUS_SUCCESS;
+    }
+
+    return BT_STATUS_UNSUPPORTED;
+}
+
+/*******************************************************************************
+**
+** Function         volume_control
+**
+** Description      volume control
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+static bt_status_t volume_control(bthf_client_volume_type_t type, int volume)
+{
+    CHECK_BTHF_CLIENT_SLC_CONNECTED();
+
+    switch (type)
+    {
+        case BTHF_CLIENT_VOLUME_TYPE_SPK:
+            BTA_HfClientSendAT(btif_hf_client_cb.handle, BTA_HF_CLIENT_AT_CMD_VGS, volume, 0, NULL);
+            break;
+        case BTHF_CLIENT_VOLUME_TYPE_MIC:
+            BTA_HfClientSendAT(btif_hf_client_cb.handle, BTA_HF_CLIENT_AT_CMD_VGM, volume, 0, NULL);
+            break;
+        default:
+            return BT_STATUS_UNSUPPORTED;
+    }
+
+    return BT_STATUS_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         dial
+**
+** Description      place a call
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+static bt_status_t dial(const char *number)
+{
+    CHECK_BTHF_CLIENT_SLC_CONNECTED();
+
+    if (number)
+    {
+        BTA_HfClientSendAT(btif_hf_client_cb.handle, BTA_HF_CLIENT_AT_CMD_ATD, 0, 0, number);
+    }
+    else
+    {
+        BTA_HfClientSendAT(btif_hf_client_cb.handle, BTA_HF_CLIENT_AT_CMD_BLDN, 0, 0, NULL);
+    }
+
+    return BT_STATUS_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         dial_memory
+**
+** Description      place a call with number specified by location (speed dial)
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+static bt_status_t dial_memory(int location)
+{
+    CHECK_BTHF_CLIENT_SLC_CONNECTED();
+
+    BTA_HfClientSendAT(btif_hf_client_cb.handle, BTA_HF_CLIENT_AT_CMD_ATD, location, 0, NULL);
+
+    return BT_STATUS_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         handle_call_action
+**
+** Description      handle specified call related action
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+static bt_status_t handle_call_action(bthf_client_call_action_t action, int idx)
+{
+    CHECK_BTHF_CLIENT_SLC_CONNECTED();
+
+    switch (action)
+    {
+    case BTHF_CLIENT_CALL_ACTION_CHLD_0:
+        if (btif_hf_client_cb.chld_feat & BTA_HF_CLIENT_CHLD_REL)
+        {
+            BTA_HfClientSendAT(btif_hf_client_cb.handle, BTA_HF_CLIENT_AT_CMD_CHLD, 0, 0, NULL);
+            break;
+        }
+        return BT_STATUS_UNSUPPORTED;
+    case BTHF_CLIENT_CALL_ACTION_CHLD_1:
+        // CHLD 1 is mandatory for 3 way calling
+        if (btif_hf_client_cb.peer_feat & BTA_HF_CLIENT_PEER_FEAT_3WAY)
+        {
+            BTA_HfClientSendAT(btif_hf_client_cb.handle, BTA_HF_CLIENT_AT_CMD_CHLD, 1, 0, NULL);
+            break;
+        }
+        return BT_STATUS_UNSUPPORTED;
+    case BTHF_CLIENT_CALL_ACTION_CHLD_2:
+        // CHLD 2 is mandatory for 3 way calling
+        if (btif_hf_client_cb.peer_feat & BTA_HF_CLIENT_PEER_FEAT_3WAY)
+        {
+            BTA_HfClientSendAT(btif_hf_client_cb.handle, BTA_HF_CLIENT_AT_CMD_CHLD, 2, 0, NULL);
+            break;
+        }
+        return BT_STATUS_UNSUPPORTED;
+    case BTHF_CLIENT_CALL_ACTION_CHLD_3:
+        if (btif_hf_client_cb.chld_feat & BTA_HF_CLIENT_CHLD_MERGE)
+        {
+            BTA_HfClientSendAT(btif_hf_client_cb.handle, BTA_HF_CLIENT_AT_CMD_CHLD, 3, 0, NULL);
+            break;
+        }
+        return BT_STATUS_UNSUPPORTED;
+    case BTHF_CLIENT_CALL_ACTION_CHLD_4:
+        if (btif_hf_client_cb.chld_feat & BTA_HF_CLIENT_CHLD_MERGE_DETACH)
+        {
+            BTA_HfClientSendAT(btif_hf_client_cb.handle, BTA_HF_CLIENT_AT_CMD_CHLD, 4, 0, NULL);
+            break;
+        }
+        return BT_STATUS_UNSUPPORTED;
+    case BTHF_CLIENT_CALL_ACTION_CHLD_1x:
+        if (btif_hf_client_cb.peer_feat & BTA_HF_CLIENT_PEER_ECC)
+        {
+            if (idx < 1)
+            {
+                return BT_STATUS_FAIL;
+            }
+            BTA_HfClientSendAT(btif_hf_client_cb.handle, BTA_HF_CLIENT_AT_CMD_CHLD, 1, idx, NULL);
+            break;
+        }
+        return BT_STATUS_UNSUPPORTED;
+    case BTHF_CLIENT_CALL_ACTION_CHLD_2x:
+        if (btif_hf_client_cb.peer_feat & BTA_HF_CLIENT_PEER_ECC)
+        {
+            if (idx < 1)
+            {
+                return BT_STATUS_FAIL;
+            }
+            BTA_HfClientSendAT(btif_hf_client_cb.handle, BTA_HF_CLIENT_AT_CMD_CHLD, 2, idx, NULL);
+            break;
+        }
+        return BT_STATUS_UNSUPPORTED;
+    case BTHF_CLIENT_CALL_ACTION_ATA:
+        BTA_HfClientSendAT(btif_hf_client_cb.handle, BTA_HF_CLIENT_AT_CMD_ATA, 0, 0, NULL);
+        break;
+    case BTHF_CLIENT_CALL_ACTION_CHUP:
+        BTA_HfClientSendAT(btif_hf_client_cb.handle, BTA_HF_CLIENT_AT_CMD_CHUP, 0, 0, NULL);
+        break;
+    case BTHF_CLIENT_CALL_ACTION_BTRH_0:
+        BTA_HfClientSendAT(btif_hf_client_cb.handle, BTA_HF_CLIENT_AT_CMD_BTRH, 0, 0, NULL);
+        break;
+    case BTHF_CLIENT_CALL_ACTION_BTRH_1:
+        BTA_HfClientSendAT(btif_hf_client_cb.handle, BTA_HF_CLIENT_AT_CMD_BTRH, 1, 0, NULL);
+        break;
+    case BTHF_CLIENT_CALL_ACTION_BTRH_2:
+        BTA_HfClientSendAT(btif_hf_client_cb.handle, BTA_HF_CLIENT_AT_CMD_BTRH, 2, 0, NULL);
+        break;
+    default:
+        return BT_STATUS_FAIL;
+
+    }
+
+    return BT_STATUS_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         query_current_calls
+**
+** Description      query list of current calls
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+static bt_status_t query_current_calls(void)
+{
+    CHECK_BTHF_CLIENT_SLC_CONNECTED();
+
+    if (btif_hf_client_cb.peer_feat & BTA_HF_CLIENT_PEER_ECS)
+    {
+        BTA_HfClientSendAT(btif_hf_client_cb.handle, BTA_HF_CLIENT_AT_CMD_CLCC, 0, 0, NULL);
+
+        return BT_STATUS_SUCCESS;
+    }
+
+    return BT_STATUS_UNSUPPORTED;
+}
+
+/*******************************************************************************
+**
+** Function         query_current_operator_name
+**
+** Description      query current selected operator name
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+static bt_status_t query_current_operator_name(void)
+{
+    CHECK_BTHF_CLIENT_SLC_CONNECTED();
+
+    BTA_HfClientSendAT(btif_hf_client_cb.handle, BTA_HF_CLIENT_AT_CMD_COPS, 0, 0, NULL);
+
+    return BT_STATUS_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         retieve_subscriber_info
+**
+** Description      retrieve subscriber number information
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+static bt_status_t retrieve_subscriber_info(void)
+{
+    CHECK_BTHF_CLIENT_SLC_CONNECTED();
+
+    BTA_HfClientSendAT(btif_hf_client_cb.handle, BTA_HF_CLIENT_AT_CMD_CNUM, 0, 0, NULL);
+
+    return BT_STATUS_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         send_dtmf
+**
+** Description      send dtmf
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+static bt_status_t send_dtmf(char code)
+{
+    CHECK_BTHF_CLIENT_SLC_CONNECTED();
+
+    BTA_HfClientSendAT(btif_hf_client_cb.handle, BTA_HF_CLIENT_AT_CMD_VTS, code, 0, NULL);
+
+    return BT_STATUS_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         request_last_voice_tag_number
+**
+** Description      Request number from AG for VR purposes
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+static bt_status_t request_last_voice_tag_number(void)
+{
+    CHECK_BTHF_CLIENT_SLC_CONNECTED();
+
+    if (btif_hf_client_cb.peer_feat & BTA_HF_CLIENT_PEER_VTAG)
+    {
+        BTA_HfClientSendAT(btif_hf_client_cb.handle, BTA_HF_CLIENT_AT_CMD_BINP, 1, 0, NULL);
+
+        return BT_STATUS_SUCCESS;
+    }
+
+    return BT_STATUS_UNSUPPORTED;
+}
+
+/*******************************************************************************
+**
+** Function         cleanup
+**
+** Description      Closes the HF interface
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+static void  cleanup( void )
+{
+    BTIF_TRACE_EVENT("%s", __FUNCTION__);
+
+    if (bt_hf_client_callbacks)
+    {
+        btif_disable_service(BTA_HFP_HS_SERVICE_ID);
+        bt_hf_client_callbacks = NULL;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         send_at_cmd
+**
+** Description      Send requested AT command to rempte device.
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+static bt_status_t send_at_cmd(int cmd,int val1,int val2,const char *arg)
+{
+    CHECK_BTHF_CLIENT_SLC_CONNECTED();
+    BTIF_TRACE_EVENT("%s Cmd %d val1 %d val2 %d arg %s",
+            __FUNCTION__,cmd,val1,val2,arg);
+    BTA_HfClientSendAT(btif_hf_client_cb.handle, cmd, val1, val2, arg);
+
+    return BT_STATUS_SUCCESS;
+}
+
+static const bthf_client_interface_t bthfClientInterface = {
+#ifdef BLUETOOTH_RTK
+    .size = sizeof(bthf_client_interface_t),
+#else
+    sizeof(bthf_client_interface_t),
+#endif
+    .init = init,
+    .connect = connect,
+    .disconnect = disconnect,
+    .connect_audio = connect_audio,
+    .disconnect_audio = disconnect_audio,
+    .start_voice_recognition = start_voice_recognition,
+    .stop_voice_recognition = stop_voice_recognition,
+    .volume_control = volume_control,
+    .dial = dial,
+    .dial_memory = dial_memory,
+    .handle_call_action = handle_call_action,
+    .query_current_calls = query_current_calls,
+    .query_current_operator_name = query_current_operator_name,
+    .retrieve_subscriber_info = retrieve_subscriber_info,
+    .send_dtmf = send_dtmf,
+    .request_last_voice_tag_number = request_last_voice_tag_number,
+    .cleanup = cleanup,
+    .send_at_cmd = send_at_cmd,
+};
+
+static void process_ind_evt(tBTA_HF_CLIENT_IND *ind)
+{
+    switch (ind->type)
+    {
+        case BTA_HF_CLIENT_IND_CALL:
+            HAL_CBACK(bt_hf_client_callbacks, call_cb, ind->value);
+            break;
+
+        case BTA_HF_CLIENT_IND_CALLSETUP:
+            HAL_CBACK(bt_hf_client_callbacks, callsetup_cb, ind->value);
+            break;
+        case BTA_HF_CLIENT_IND_CALLHELD:
+            HAL_CBACK(bt_hf_client_callbacks, callheld_cb, ind->value);
+            break;
+
+        case BTA_HF_CLIENT_IND_SERVICE:
+            HAL_CBACK(bt_hf_client_callbacks, network_state_cb, ind->value);
+            break;
+
+        case BTA_HF_CLIENT_IND_SIGNAL:
+            HAL_CBACK(bt_hf_client_callbacks, network_signal_cb, ind->value);
+            break;
+
+        case BTA_HF_CLIENT_IND_ROAM:
+            HAL_CBACK(bt_hf_client_callbacks, network_roaming_cb, ind->value);
+            break;
+
+        case BTA_HF_CLIENT_IND_BATTCH:
+            HAL_CBACK(bt_hf_client_callbacks, battery_level_cb, ind->value);
+            break;
+
+        default:
+            break;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btif_hf_client_upstreams_evt
+**
+** Description      Executes HF CLIENT UPSTREAMS events in btif context
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btif_hf_client_upstreams_evt(UINT16 event, char* p_param)
+{
+    tBTA_HF_CLIENT *p_data = (tBTA_HF_CLIENT *)p_param;
+    bdstr_t bdstr;
+
+    BTIF_TRACE_DEBUG("%s: event=%s (%u)", __FUNCTION__, dump_hf_client_event(event), event);
+
+    switch (event)
+    {
+        case BTA_HF_CLIENT_ENABLE_EVT:
+        case BTA_HF_CLIENT_DISABLE_EVT:
+            break;
+
+        case BTA_HF_CLIENT_REGISTER_EVT:
+            btif_hf_client_cb.handle = p_data->reg.handle;
+            break;
+
+        case BTA_HF_CLIENT_OPEN_EVT:
+            if (p_data->open.status == BTA_HF_CLIENT_SUCCESS)
+            {
+                bdcpy(btif_hf_client_cb.connected_bda.address, p_data->open.bd_addr);
+                btif_hf_client_cb.state = BTHF_CLIENT_CONNECTION_STATE_CONNECTED;
+                btif_hf_client_cb.peer_feat = 0;
+                btif_hf_client_cb.chld_feat = 0;
+                //clear_phone_state();
+            }
+            else if (btif_hf_client_cb.state == BTHF_CLIENT_CONNECTION_STATE_CONNECTING)
+            {
+                btif_hf_client_cb.state = BTHF_CLIENT_CONNECTION_STATE_DISCONNECTED;
+            }
+            else
+            {
+                BTIF_TRACE_WARNING("%s: HF CLient open failed, but another device connected. status=%d state=%d connected device=%s",
+                        __FUNCTION__, p_data->open.status, btif_hf_client_cb.state, bdaddr_to_string(&btif_hf_client_cb.connected_bda, bdstr, sizeof(bdstr)));
+                break;
+            }
+
+            HAL_CBACK(bt_hf_client_callbacks, connection_state_cb, btif_hf_client_cb.state,
+                        0, 0, &btif_hf_client_cb.connected_bda);
+
+            if (btif_hf_client_cb.state == BTHF_CLIENT_CONNECTION_STATE_DISCONNECTED)
+                bdsetany(btif_hf_client_cb.connected_bda.address);
+
+            if (p_data->open.status != BTA_HF_CLIENT_SUCCESS)
+                btif_queue_advance();
+            break;
+
+        case BTA_HF_CLIENT_CONN_EVT:
+            btif_hf_client_cb.peer_feat = p_data->conn.peer_feat;
+            btif_hf_client_cb.chld_feat = p_data->conn.chld_feat;
+            btif_hf_client_cb.state = BTHF_CLIENT_CONNECTION_STATE_SLC_CONNECTED;
+
+            HAL_CBACK(bt_hf_client_callbacks, connection_state_cb, btif_hf_client_cb.state,
+                        btif_hf_client_cb.peer_feat, btif_hf_client_cb.chld_feat,
+                        &btif_hf_client_cb.connected_bda);
+
+            /* Inform the application about in-band ringtone */
+            if (btif_hf_client_cb.peer_feat & BTA_HF_CLIENT_PEER_INBAND)
+            {
+                HAL_CBACK(bt_hf_client_callbacks, in_band_ring_tone_cb, BTHF_CLIENT_IN_BAND_RINGTONE_PROVIDED);
+            }
+
+            btif_queue_advance();
+            break;
+
+        case BTA_HF_CLIENT_CLOSE_EVT:
+            btif_hf_client_cb.state = BTHF_CLIENT_CONNECTION_STATE_DISCONNECTED;
+            HAL_CBACK(bt_hf_client_callbacks, connection_state_cb,  btif_hf_client_cb.state,
+                        0, 0, &btif_hf_client_cb.connected_bda);
+            bdsetany(btif_hf_client_cb.connected_bda.address);
+            btif_hf_client_cb.peer_feat = 0;
+            btif_hf_client_cb.chld_feat = 0;
+            btif_queue_advance();
+            break;
+
+        case BTA_HF_CLIENT_IND_EVT:
+            process_ind_evt(&p_data->ind);
+            break;
+
+        case BTA_HF_CLIENT_MIC_EVT:
+            HAL_CBACK(bt_hf_client_callbacks, volume_change_cb, BTHF_CLIENT_VOLUME_TYPE_MIC, p_data->val.value);
+            break;
+
+        case BTA_HF_CLIENT_SPK_EVT:
+            HAL_CBACK(bt_hf_client_callbacks, volume_change_cb, BTHF_CLIENT_VOLUME_TYPE_SPK, p_data->val.value);
+            break;
+
+        case BTA_HF_CLIENT_VOICE_REC_EVT:
+            HAL_CBACK(bt_hf_client_callbacks, vr_cmd_cb, p_data->val.value);
+            break;
+
+        case BTA_HF_CLIENT_OPERATOR_NAME_EVT:
+            HAL_CBACK(bt_hf_client_callbacks, current_operator_cb, p_data->operator.name);
+            break;
+
+        case BTA_HF_CLIENT_CLIP_EVT:
+            HAL_CBACK(bt_hf_client_callbacks, clip_cb, p_data->number.number);
+            break;
+
+        case BTA_HF_CLIENT_BINP_EVT:
+            HAL_CBACK(bt_hf_client_callbacks, last_voice_tag_number_callback, p_data->number.number);
+            break;
+
+        case BTA_HF_CLIENT_CCWA_EVT:
+            HAL_CBACK(bt_hf_client_callbacks, call_waiting_cb, p_data->number.number);
+            break;
+
+        case BTA_HF_CLIENT_AT_RESULT_EVT:
+            HAL_CBACK(bt_hf_client_callbacks, cmd_complete_cb, p_data->result.type, p_data->result.cme);
+            break;
+
+        case BTA_HF_CLIENT_CLCC_EVT:
+            HAL_CBACK(bt_hf_client_callbacks, current_calls_cb, p_data->clcc.idx,
+                        p_data->clcc.inc ? BTHF_CLIENT_CALL_DIRECTION_INCOMING : BTHF_CLIENT_CALL_DIRECTION_OUTGOING,
+                        p_data->clcc.status,
+                        p_data->clcc.mpty ? BTHF_CLIENT_CALL_MPTY_TYPE_MULTI : BTHF_CLIENT_CALL_MPTY_TYPE_SINGLE,
+                        p_data->clcc.number_present ? p_data->clcc.number : NULL);
+            break;
+
+        case BTA_HF_CLIENT_CNUM_EVT:
+            if (p_data->cnum.service == 4)
+            {
+                HAL_CBACK(bt_hf_client_callbacks, subscriber_info_cb, p_data->cnum.number, BTHF_CLIENT_SERVICE_VOICE);
+            }
+            else if (p_data->cnum.service == 5)
+            {
+                HAL_CBACK(bt_hf_client_callbacks, subscriber_info_cb, p_data->cnum.number, BTHF_CLIENT_SERVICE_FAX);
+            }
+            else
+            {
+                HAL_CBACK(bt_hf_client_callbacks, subscriber_info_cb, p_data->cnum.number, BTHF_CLIENT_SERVICE_UNKNOWN);
+            }
+            break;
+
+        case BTA_HF_CLIENT_BTRH_EVT:
+            if (p_data->val.value <= BTRH_CLIENT_RESP_AND_HOLD_REJECT)
+            {
+                HAL_CBACK(bt_hf_client_callbacks, resp_and_hold_cb, p_data->val.value);
+            }
+            break;
+
+        case BTA_HF_CLIENT_BSIR_EVT:
+            if (p_data->val.value != 0)
+            {
+                HAL_CBACK(bt_hf_client_callbacks, in_band_ring_tone_cb, BTHF_CLIENT_IN_BAND_RINGTONE_PROVIDED);
+            }
+            else
+            {
+                HAL_CBACK(bt_hf_client_callbacks, in_band_ring_tone_cb, BTHF_CLIENT_IN_BAND_RINGTONE_NOT_PROVIDED);
+            }
+            break;
+
+        case BTA_HF_CLIENT_AUDIO_OPEN_EVT:
+            HAL_CBACK(bt_hf_client_callbacks, audio_state_cb, BTHF_CLIENT_AUDIO_STATE_CONNECTED, &btif_hf_client_cb.connected_bda);
+            break;
+
+        case BTA_HF_CLIENT_AUDIO_MSBC_OPEN_EVT:
+            HAL_CBACK(bt_hf_client_callbacks, audio_state_cb, BTHF_CLIENT_AUDIO_STATE_CONNECTED_MSBC, &btif_hf_client_cb.connected_bda);
+            break;
+
+        case BTA_HF_CLIENT_AUDIO_CLOSE_EVT:
+            HAL_CBACK(bt_hf_client_callbacks, audio_state_cb, BTHF_CLIENT_AUDIO_STATE_DISCONNECTED, &btif_hf_client_cb.connected_bda);
+            break;
+        case BTA_HF_CLIENT_RING_INDICATION:
+            HAL_CBACK(bt_hf_client_callbacks, ring_indication_cb);
+            break;
+        default:
+            BTIF_TRACE_WARNING("%s: Unhandled event: %d", __FUNCTION__, event);
+            break;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bte_hf_client_evt
+**
+** Description      Switches context from BTE to BTIF for all HF Client events
+**
+** Returns          void
+**
+*******************************************************************************/
+
+static void bte_hf_client_evt(tBTA_HF_CLIENT_EVT event, tBTA_HF_CLIENT *p_data)
+{
+    bt_status_t status;
+
+    /* switch context to btif task context (copy full union size for convenience) */
+    status = btif_transfer_context(btif_hf_client_upstreams_evt, (uint16_t)event, (void*)p_data, sizeof(*p_data), NULL);
+
+    /* catch any failed context transfers */
+    ASSERTC(status == BT_STATUS_SUCCESS, "context transfer failed", status);
+}
+
+/*******************************************************************************
+**
+** Function         btif_hf_client_execute_service
+**
+** Description      Initializes/Shuts down the service
+**
+** Returns          BT_STATUS_SUCCESS on success, BT_STATUS_FAIL otherwise
+**
+*******************************************************************************/
+bt_status_t btif_hf_client_execute_service(BOOLEAN b_enable)
+{
+    BTIF_TRACE_EVENT("%s enable:%d", __FUNCTION__, b_enable);
+
+    osi_property_get("ro.bluetooth.hfp.ver", btif_hf_client_version, "1.5");
+
+     if (b_enable)
+     {
+          /* Enable and register with BTA-HFClient */
+          BTA_HfClientEnable(bte_hf_client_evt);
+          if (strcmp(btif_hf_client_version, "1.6") == 0)
+          {
+              BTIF_TRACE_EVENT("Support Codec Nego. %d ", BTIF_HF_CLIENT_FEATURES);
+              BTA_HfClientRegister(BTIF_HF_CLIENT_SECURITY, BTIF_HF_CLIENT_FEATURES,
+                      BTIF_HF_CLIENT_SERVICE_NAME);
+          }
+          else
+          {
+              BTIF_TRACE_EVENT("No Codec Nego Supported");
+              btif_hf_client_features = BTIF_HF_CLIENT_FEATURES;
+              btif_hf_client_features = btif_hf_client_features & (~BTA_HF_CLIENT_FEAT_CODEC);
+              BTIF_TRACE_EVENT("btif_hf_client_features is   %d", btif_hf_client_features);
+              BTA_HfClientRegister(BTIF_HF_CLIENT_SECURITY, btif_hf_client_features,
+                      BTIF_HF_CLIENT_SERVICE_NAME);
+          }
+
+     }
+     else
+     {
+         BTA_HfClientDeregister(btif_hf_client_cb.handle);
+         BTA_HfClientDisable();
+     }
+     return BT_STATUS_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         btif_hf_get_interface
+**
+** Description      Get the hf callback interface
+**
+** Returns          bthf_interface_t
+**
+*******************************************************************************/
+const bthf_client_interface_t *btif_hf_client_get_interface(void)
+{
+    BTIF_TRACE_EVENT("%s", __FUNCTION__);
+    return &bthfClientInterface;
+}
diff --git a/rtkbt/code/bt/btif/src/btif_hh.c b/rtkbt/code/bt/btif/src/btif_hh.c
new file mode 100755
index 0000000..0467971
--- /dev/null
+++ b/rtkbt/code/bt/btif/src/btif_hh.c
@@ -0,0 +1,1718 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/************************************************************************************
+ *
+ *  Filename:      btif_hh.c
+ *
+ *  Description:   HID Host Profile Bluetooth Interface
+ *
+ *
+ ***********************************************************************************/
+
+#define LOG_TAG "bt_btif_hh"
+
+#include "btif_hh.h"
+
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "bta_api.h"
+#include "btif_common.h"
+#include "btif_storage.h"
+#include "btif_util.h"
+#include "bt_common.h"
+#include "l2c_api.h"
+#include "osi/include/log.h"
+#ifdef BLUETOOTH_RTK_COEX
+#include "btm_int.h"
+#endif
+#ifdef BLUETOOTH_RTK_API
+#include "rtkbt_api.h"
+#endif
+
+#define BTIF_HH_APP_ID_MI       0x01
+#define BTIF_HH_APP_ID_KB       0x02
+
+#define COD_HID_KEYBOARD        0x0540
+#define COD_HID_POINTING        0x0580
+#define COD_HID_COMBO           0x05C0
+
+#define KEYSTATE_FILEPATH "/data/misc/bluedroid/bt_hh_ks" //keep this in sync with HID host jni
+
+#define HID_REPORT_CAPSLOCK   0x39
+#define HID_REPORT_NUMLOCK    0x53
+#define HID_REPORT_SCROLLLOCK 0x47
+
+//For Apple Magic Mouse
+#define MAGICMOUSE_VENDOR_ID 0x05ac
+#define MAGICMOUSE_PRODUCT_ID 0x030d
+
+#define LOGITECH_KB_MX5500_VENDOR_ID  0x046D
+#define LOGITECH_KB_MX5500_PRODUCT_ID 0xB30B
+
+extern fixed_queue_t *btu_general_alarm_queue;
+extern const int BT_UID;
+extern const int BT_GID;
+static int btif_hh_keylockstates=0; //The current key state of each key
+
+#define BTIF_HH_ID_1        0
+#define BTIF_HH_DEV_DISCONNECTED 3
+
+#define BTIF_TIMEOUT_VUP_MS   (3 * 1000)
+
+#ifndef BTUI_HH_SECURITY
+#define BTUI_HH_SECURITY (BTA_SEC_AUTHENTICATE | BTA_SEC_ENCRYPT)
+#endif
+
+#ifndef BTUI_HH_MOUSE_SECURITY
+#define BTUI_HH_MOUSE_SECURITY (BTA_SEC_NONE)
+#endif
+
+/* HH request events */
+typedef enum
+{
+    BTIF_HH_CONNECT_REQ_EVT = 0,
+    BTIF_HH_DISCONNECT_REQ_EVT,
+    BTIF_HH_VUP_REQ_EVT
+} btif_hh_req_evt_t;
+
+/************************************************************************************
+**  Constants & Macros
+************************************************************************************/
+#define BTIF_HH_SERVICES    (BTA_HID_SERVICE_MASK)
+
+/************************************************************************************
+**  Local type definitions
+************************************************************************************/
+
+typedef struct hid_kb_list
+{
+    UINT16 product_id;
+    UINT16 version_id;
+    char*  kb_name;
+} tHID_KB_LIST;
+
+/************************************************************************************
+**  Static variables
+************************************************************************************/
+btif_hh_cb_t btif_hh_cb;
+
+static bthh_callbacks_t *bt_hh_callbacks = NULL;
+
+/* List of HID keyboards for which the NUMLOCK state needs to be
+ * turned ON by default. Add devices to this list to apply the
+ * NUMLOCK state toggle on fpr first connect.*/
+static tHID_KB_LIST hid_kb_numlock_on_list[] =
+{
+    {LOGITECH_KB_MX5500_PRODUCT_ID,
+    LOGITECH_KB_MX5500_VENDOR_ID,
+    "Logitech MX5500 Keyboard"}
+};
+
+#define CHECK_BTHH_INIT() if (bt_hh_callbacks == NULL)\
+    {\
+        BTIF_TRACE_WARNING("BTHH: %s: BTHH not initialized", __FUNCTION__);\
+        return BT_STATUS_NOT_READY;\
+    }\
+    else\
+    {\
+        BTIF_TRACE_EVENT("BTHH: %s", __FUNCTION__);\
+    }
+
+/************************************************************************************
+**  Static functions
+************************************************************************************/
+
+/************************************************************************************
+**  Externs
+************************************************************************************/
+extern void bta_hh_co_destroy(int fd);
+extern void bta_hh_co_write(int fd, UINT8* rpt, UINT16 len);
+extern bt_status_t btif_dm_remove_bond(const bt_bdaddr_t *bd_addr);
+extern void bta_hh_co_send_hid_info(btif_hh_device_t *p_dev, char *dev_name, UINT16 vendor_id,
+                                    UINT16 product_id, UINT16 version, UINT8 ctry_code,
+                                    int dscp_len, UINT8 *p_dscp);
+extern BOOLEAN check_cod(const bt_bdaddr_t *remote_bdaddr, uint32_t cod);
+extern void btif_dm_cb_remove_bond(bt_bdaddr_t *bd_addr);
+extern BOOLEAN check_cod_hid(const bt_bdaddr_t *remote_bdaddr);
+extern int  scru_ascii_2_hex(char *p_ascii, int len, UINT8 *p_hex);
+extern void btif_dm_hh_open_failed(bt_bdaddr_t *bdaddr);
+
+/*****************************************************************************
+**  Local Function prototypes
+*****************************************************************************/
+static void set_keylockstate(int keymask, BOOLEAN isSet);
+static void toggle_os_keylockstates(int fd, int changedkeystates);
+static void sync_lockstate_on_connect(btif_hh_device_t *p_dev);
+//static void hh_update_keyboard_lockstates(btif_hh_device_t *p_dev);
+void btif_hh_timer_timeout(void *data);
+
+/************************************************************************************
+**  Functions
+************************************************************************************/
+
+static int get_keylockstates()
+{
+    return btif_hh_keylockstates;
+}
+
+static void set_keylockstate(int keymask, BOOLEAN isSet)
+{
+    if(isSet)
+        btif_hh_keylockstates |= keymask;
+}
+
+/*******************************************************************************
+**
+** Function         toggle_os_keylockstates
+**
+** Description      Function to toggle the keyboard lock states managed by the linux.
+**                  This function is used in by two call paths
+**                  (1) if the lock state change occurred from an onscreen keyboard,
+**                  this function is called to update the lock state maintained
+                    for the HID keyboard(s)
+**                  (2) if a HID keyboard is disconnected and reconnected,
+**                  this function is called to update the lock state maintained
+                    for the HID keyboard(s)
+** Returns          void
+*******************************************************************************/
+
+static void toggle_os_keylockstates(int fd, int changedlockstates)
+{
+    BTIF_TRACE_EVENT("%s: fd = %d, changedlockstates = 0x%x",
+        __FUNCTION__, fd, changedlockstates);
+    UINT8 hidreport[9];
+    int reportIndex;
+    memset(hidreport,0,9);
+    hidreport[0]=1;
+    reportIndex=4;
+
+    if (changedlockstates & BTIF_HH_KEYSTATE_MASK_CAPSLOCK) {
+        BTIF_TRACE_DEBUG("%s Setting CAPSLOCK", __FUNCTION__);
+        hidreport[reportIndex++] = (UINT8)HID_REPORT_CAPSLOCK;
+    }
+
+    if (changedlockstates & BTIF_HH_KEYSTATE_MASK_NUMLOCK)  {
+        BTIF_TRACE_DEBUG("%s Setting NUMLOCK", __FUNCTION__);
+        hidreport[reportIndex++] = (UINT8)HID_REPORT_NUMLOCK;
+    }
+
+    if (changedlockstates & BTIF_HH_KEYSTATE_MASK_SCROLLLOCK) {
+        BTIF_TRACE_DEBUG("%s Setting SCROLLLOCK", __FUNCTION__);
+        hidreport[reportIndex++] = (UINT8) HID_REPORT_SCROLLLOCK;
+    }
+
+     BTIF_TRACE_DEBUG("Writing hidreport #1 to os: "\
+        "%s:  %x %x %x", __FUNCTION__,
+         hidreport[0], hidreport[1], hidreport[2]);
+    BTIF_TRACE_DEBUG("%s:  %x %x %x", __FUNCTION__,
+         hidreport[3], hidreport[4], hidreport[5]);
+    BTIF_TRACE_DEBUG("%s:  %x %x %x", __FUNCTION__,
+         hidreport[6], hidreport[7], hidreport[8]);
+    bta_hh_co_write(fd , hidreport, sizeof(hidreport));
+    usleep(200000);
+    memset(hidreport,0,9);
+    hidreport[0]=1;
+    BTIF_TRACE_DEBUG("Writing hidreport #2 to os: "\
+       "%s:  %x %x %x", __FUNCTION__,
+         hidreport[0], hidreport[1], hidreport[2]);
+    BTIF_TRACE_DEBUG("%s:  %x %x %x", __FUNCTION__,
+         hidreport[3], hidreport[4], hidreport[5]);
+    BTIF_TRACE_DEBUG("%s:  %x %x %x ", __FUNCTION__,
+         hidreport[6], hidreport[7], hidreport[8]);
+    bta_hh_co_write(fd , hidreport, sizeof(hidreport));
+}
+
+/*******************************************************************************
+**
+** Function         create_pbuf
+**
+** Description      Helper function to create p_buf for send_data or set_report
+**
+*******************************************************************************/
+static BT_HDR *create_pbuf(UINT16 len, UINT8 *data)
+{
+    BT_HDR* p_buf = osi_malloc(len + BTA_HH_MIN_OFFSET + sizeof(BT_HDR));
+    UINT8* pbuf_data;
+
+    p_buf->len = len;
+    p_buf->offset = BTA_HH_MIN_OFFSET;
+
+    pbuf_data = (UINT8 *)(p_buf + 1) + p_buf->offset;
+    memcpy(pbuf_data, data, len);
+
+    return p_buf;
+}
+
+/*******************************************************************************
+**
+** Function         update_keyboard_lockstates
+**
+** Description      Sends a report to the keyboard to set the lock states of keys
+**
+*******************************************************************************/
+static void update_keyboard_lockstates(btif_hh_device_t *p_dev)
+{
+    UINT8 len = 2;  /* reportid + 1 byte report*/
+    BD_ADDR* bda;
+    BT_HDR* p_buf;
+    UINT8 data[] = {0x01, /* report id */
+                    btif_hh_keylockstates}; /* keystate */
+
+    /* Set report for other keyboards */
+    BTIF_TRACE_EVENT("%s: setting report on dev_handle %d to 0x%x",
+         __FUNCTION__, p_dev->dev_handle, btif_hh_keylockstates);
+
+    /* Get SetReport buffer */
+    p_buf = create_pbuf(len, data);
+    if (p_buf != NULL) {
+        p_buf->layer_specific = BTA_HH_RPTT_OUTPUT;
+        bda = (BD_ADDR*) (&p_dev->bd_addr);
+        BTA_HhSendData(p_dev->dev_handle, *bda, p_buf);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         sync_lockstate_on_connect
+**
+** Description      Function to update the keyboard lock states managed by the OS
+**                  when a HID keyboard is connected or disconnected and reconnected
+** Returns          void
+*******************************************************************************/
+static void sync_lockstate_on_connect(btif_hh_device_t *p_dev)
+{
+    int keylockstates;
+
+    BTIF_TRACE_EVENT("%s: Syncing keyboard lock states after "\
+        "reconnect...",__FUNCTION__);
+    /*If the device is connected, update keyboard state */
+    update_keyboard_lockstates(p_dev);
+
+    /*Check if the lockstate of caps,scroll,num is set.
+     If so, send a report to the kernel
+    so the lockstate is in sync */
+    keylockstates = get_keylockstates();
+    if (keylockstates)
+    {
+        BTIF_TRACE_DEBUG("%s: Sending hid report to kernel "\
+            "indicating lock key state 0x%x",__FUNCTION__,
+            keylockstates);
+        usleep(200000);
+        toggle_os_keylockstates(p_dev->fd, keylockstates);
+    }
+    else
+    {
+        BTIF_TRACE_DEBUG("%s: NOT sending hid report to kernel "\
+            "indicating lock key state 0x%x",__FUNCTION__,
+            keylockstates);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btif_hh_find_connected_dev_by_handle
+**
+** Description      Return the connected device pointer of the specified device handle
+**
+** Returns          Device entry pointer in the device table
+*******************************************************************************/
+btif_hh_device_t *btif_hh_find_connected_dev_by_handle(UINT8 handle)
+{
+    UINT32 i;
+    for (i = 0; i < BTIF_HH_MAX_HID; i++) {
+        if (btif_hh_cb.devices[i].dev_status == BTHH_CONN_STATE_CONNECTED &&
+            btif_hh_cb.devices[i].dev_handle == handle)
+        {
+            return &btif_hh_cb.devices[i];
+        }
+    }
+    return NULL;
+}
+
+/*******************************************************************************
+**
+** Function         btif_hh_find_dev_by_bda
+**
+** Description      Return the device pointer of the specified bt_bdaddr_t.
+**
+** Returns          Device entry pointer in the device table
+*******************************************************************************/
+static btif_hh_device_t *btif_hh_find_dev_by_bda(bt_bdaddr_t *bd_addr)
+{
+    UINT32 i;
+    for (i = 0; i < BTIF_HH_MAX_HID; i++) {
+        if (btif_hh_cb.devices[i].dev_status != BTHH_CONN_STATE_UNKNOWN &&
+            memcmp(&(btif_hh_cb.devices[i].bd_addr), bd_addr, BD_ADDR_LEN) == 0)
+        {
+            return &btif_hh_cb.devices[i];
+        }
+    }
+    return NULL;
+}
+
+/*******************************************************************************
+**
+** Function         btif_hh_find_connected_dev_by_bda
+**
+** Description      Return the connected device pointer of the specified bt_bdaddr_t.
+**
+** Returns          Device entry pointer in the device table
+*******************************************************************************/
+static btif_hh_device_t *btif_hh_find_connected_dev_by_bda(bt_bdaddr_t *bd_addr)
+{
+    UINT32 i;
+    for (i = 0; i < BTIF_HH_MAX_HID; i++) {
+        if (btif_hh_cb.devices[i].dev_status == BTHH_CONN_STATE_CONNECTED &&
+            memcmp(&(btif_hh_cb.devices[i].bd_addr), bd_addr, BD_ADDR_LEN) == 0)
+        {
+            return &btif_hh_cb.devices[i];
+        }
+    }
+    return NULL;
+}
+
+/*******************************************************************************
+**
+** Function      btif_hh_stop_vup_timer
+**
+** Description  stop vitual unplug timer
+**
+** Returns      void
+*******************************************************************************/
+void btif_hh_stop_vup_timer(bt_bdaddr_t *bd_addr)
+{
+    btif_hh_device_t *p_dev = btif_hh_find_connected_dev_by_bda(bd_addr);
+
+    if (p_dev != NULL) {
+        BTIF_TRACE_DEBUG("stop VUP timer");
+        alarm_free(p_dev->vup_timer);
+        p_dev->vup_timer = NULL;
+    }
+}
+/*******************************************************************************
+**
+** Function      btif_hh_start_vup_timer
+**
+** Description  start virtual unplug timer
+**
+** Returns      void
+*******************************************************************************/
+void btif_hh_start_vup_timer(bt_bdaddr_t *bd_addr)
+{
+    BTIF_TRACE_DEBUG("%s", __func__);
+
+    btif_hh_device_t *p_dev  = btif_hh_find_connected_dev_by_bda(bd_addr);
+    assert(p_dev != NULL);
+
+    alarm_free(p_dev->vup_timer);
+    p_dev->vup_timer = alarm_new("btif_hh.vup_timer");
+    alarm_set_on_queue(p_dev->vup_timer, BTIF_TIMEOUT_VUP_MS,
+                       btif_hh_timer_timeout, p_dev,
+                       btu_general_alarm_queue);
+}
+
+/*******************************************************************************
+**
+** Function         btif_hh_add_added_dev
+**
+** Description      Add a new device to the added device list.
+**
+** Returns          TRUE if add successfully, otherwise FALSE.
+*******************************************************************************/
+BOOLEAN btif_hh_add_added_dev(bt_bdaddr_t bda, tBTA_HH_ATTR_MASK attr_mask)
+{
+    int i;
+    for (i = 0; i < BTIF_HH_MAX_ADDED_DEV; i++) {
+        if (memcmp(&(btif_hh_cb.added_devices[i].bd_addr), &bda, BD_ADDR_LEN) == 0) {
+            BTIF_TRACE_WARNING(" Device %02X:%02X:%02X:%02X:%02X:%02X already added",
+                  bda.address[0], bda.address[1], bda.address[2], bda.address[3], bda.address[4], bda.address[5]);
+            return FALSE;
+        }
+    }
+    for (i = 0; i < BTIF_HH_MAX_ADDED_DEV; i++) {
+        if (btif_hh_cb.added_devices[i].bd_addr.address[0] == 0 &&
+            btif_hh_cb.added_devices[i].bd_addr.address[1] == 0 &&
+            btif_hh_cb.added_devices[i].bd_addr.address[2] == 0 &&
+            btif_hh_cb.added_devices[i].bd_addr.address[3] == 0 &&
+            btif_hh_cb.added_devices[i].bd_addr.address[4] == 0 &&
+            btif_hh_cb.added_devices[i].bd_addr.address[5] == 0)
+        {
+            BTIF_TRACE_WARNING(" Added device %02X:%02X:%02X:%02X:%02X:%02X",
+                  bda.address[0], bda.address[1], bda.address[2], bda.address[3], bda.address[4], bda.address[5]);
+            memcpy(&(btif_hh_cb.added_devices[i].bd_addr), &bda, BD_ADDR_LEN);
+            btif_hh_cb.added_devices[i].dev_handle = BTA_HH_INVALID_HANDLE;
+            btif_hh_cb.added_devices[i].attr_mask  = attr_mask;
+            return TRUE;
+        }
+    }
+
+    BTIF_TRACE_WARNING("%s: Error, out of space to add device",__FUNCTION__);
+    return FALSE;
+}
+
+/*******************************************************************************
+ **
+ ** Function         btif_hh_remove_device
+ **
+ ** Description      Remove an added device from the stack.
+ **
+ ** Returns          void
+ *******************************************************************************/
+void btif_hh_remove_device(bt_bdaddr_t bd_addr)
+{
+    int                    i;
+    btif_hh_device_t       *p_dev;
+    btif_hh_added_device_t *p_added_dev;
+
+    LOG_INFO(LOG_TAG, "%s: bda = %02x:%02x:%02x:%02x:%02x:%02x", __FUNCTION__,
+         bd_addr.address[0], bd_addr.address[1], bd_addr.address[2], bd_addr.address[3], bd_addr.address[4], bd_addr.address[5]);
+
+    for (i = 0; i < BTIF_HH_MAX_ADDED_DEV; i++) {
+        p_added_dev = &btif_hh_cb.added_devices[i];
+        if (memcmp(&(p_added_dev->bd_addr),&bd_addr, 6) == 0) {
+            BTA_HhRemoveDev(p_added_dev->dev_handle);
+            btif_storage_remove_hid_info(&(p_added_dev->bd_addr));
+            memset(&(p_added_dev->bd_addr), 0, 6);
+            p_added_dev->dev_handle = BTA_HH_INVALID_HANDLE;
+            break;
+        }
+    }
+
+    p_dev = btif_hh_find_dev_by_bda(&bd_addr);
+    if (p_dev == NULL) {
+        BTIF_TRACE_WARNING(" Oops, can't find device [%02x:%02x:%02x:%02x:%02x:%02x]",
+             bd_addr.address[0], bd_addr.address[1], bd_addr.address[2], bd_addr.address[3], bd_addr.address[4], bd_addr.address[5]);
+        return;
+    }
+
+    /* need to notify up-layer device is disconnected to avoid state out of sync with up-layer */
+    HAL_CBACK(bt_hh_callbacks, connection_state_cb, &(p_dev->bd_addr), BTHH_CONN_STATE_DISCONNECTED);
+
+    p_dev->dev_status = BTHH_CONN_STATE_UNKNOWN;
+    p_dev->dev_handle = BTA_HH_INVALID_HANDLE;
+    p_dev->ready_for_data = FALSE;
+
+    if (btif_hh_cb.device_num > 0) {
+        btif_hh_cb.device_num--;
+    }
+    else {
+        BTIF_TRACE_WARNING("%s: device_num = 0", __FUNCTION__);
+    }
+
+    p_dev->hh_keep_polling = 0;
+    p_dev->hh_poll_thread_id = -1;
+    BTIF_TRACE_DEBUG("%s: uhid fd = %d", __FUNCTION__, p_dev->fd);
+    if (p_dev->fd >= 0) {
+        bta_hh_co_destroy(p_dev->fd);
+        p_dev->fd = -1;
+    }
+}
+
+BOOLEAN btif_hh_copy_hid_info(tBTA_HH_DEV_DSCP_INFO* dest , tBTA_HH_DEV_DSCP_INFO* src)
+{
+    dest->descriptor.dl_len = 0;
+    if (src->descriptor.dl_len > 0) {
+        dest->descriptor.dsc_list = (UINT8 *)osi_malloc(src->descriptor.dl_len);
+    }
+    memcpy(dest->descriptor.dsc_list, src->descriptor.dsc_list, src->descriptor.dl_len);
+    dest->descriptor.dl_len = src->descriptor.dl_len;
+    dest->vendor_id  = src->vendor_id;
+    dest->product_id = src->product_id;
+    dest->version    = src->version;
+    dest->ctry_code  = src->ctry_code;
+    dest->ssr_max_latency = src->ssr_max_latency;
+    dest->ssr_min_tout = src->ssr_min_tout;
+    return TRUE;
+}
+
+/*******************************************************************************
+**
+** Function         btif_hh_virtual_unplug
+**
+** Description      Virtual unplug initiated from the BTIF thread context
+**                  Special handling for HID mouse-
+**
+** Returns          void
+**
+*******************************************************************************/
+
+bt_status_t btif_hh_virtual_unplug(bt_bdaddr_t *bd_addr)
+{
+    BTIF_TRACE_DEBUG("%s", __FUNCTION__);
+    btif_hh_device_t *p_dev;
+    char bd_str[18];
+    sprintf(bd_str, "%02X:%02X:%02X:%02X:%02X:%02X",
+            bd_addr->address[0],  bd_addr->address[1],  bd_addr->address[2],  bd_addr->address[3],
+            bd_addr->address[4], bd_addr->address[5]);
+    p_dev = btif_hh_find_dev_by_bda(bd_addr);
+    if ((p_dev != NULL) && (p_dev->dev_status == BTHH_CONN_STATE_CONNECTED)
+        && (p_dev->attr_mask & HID_VIRTUAL_CABLE))
+    {
+        BTIF_TRACE_DEBUG("%s Sending BTA_HH_CTRL_VIRTUAL_CABLE_UNPLUG", __FUNCTION__);
+        /* start the timer */
+        btif_hh_start_vup_timer(bd_addr);
+        p_dev->local_vup = TRUE;
+        BTA_HhSendCtrl(p_dev->dev_handle, BTA_HH_CTRL_VIRTUAL_CABLE_UNPLUG);
+        return BT_STATUS_SUCCESS;
+    }
+    else
+    {
+        BTIF_TRACE_ERROR("%s: Error, device %s not opened.", __FUNCTION__, bd_str);
+        return BT_STATUS_FAIL;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btif_hh_connect
+**
+** Description      connection initiated from the BTIF thread context
+**
+** Returns          int status
+**
+*******************************************************************************/
+
+bt_status_t btif_hh_connect(bt_bdaddr_t *bd_addr)
+{
+    btif_hh_device_t *dev;
+    btif_hh_added_device_t *added_dev = NULL;
+    char bda_str[20];
+    int i;
+    BD_ADDR *bda = (BD_ADDR*)bd_addr;
+    CHECK_BTHH_INIT();
+    dev = btif_hh_find_dev_by_bda(bd_addr);
+    BTIF_TRACE_DEBUG("Connect _hh");
+    sprintf(bda_str, "%02X:%02X:%02X:%02X:%02X:%02X",
+            (*bda)[0], (*bda)[1], (*bda)[2], (*bda)[3], (*bda)[4], (*bda)[5]);
+    if (dev == NULL && btif_hh_cb.device_num >= BTIF_HH_MAX_HID) {
+        // No space for more HID device now.
+         BTIF_TRACE_WARNING("%s: Error, exceeded the maximum supported HID device number %d",
+             __FUNCTION__, BTIF_HH_MAX_HID);
+        return BT_STATUS_FAIL;
+    }
+
+    for (i = 0; i < BTIF_HH_MAX_ADDED_DEV; i++) {
+        if (memcmp(&(btif_hh_cb.added_devices[i].bd_addr), bd_addr, BD_ADDR_LEN) == 0) {
+            added_dev = &btif_hh_cb.added_devices[i];
+             BTIF_TRACE_WARNING("%s: Device %s already added, attr_mask = 0x%x",
+                 __FUNCTION__, bda_str, added_dev->attr_mask);
+        }
+    }
+
+    if (added_dev != NULL) {
+        if (added_dev->dev_handle == BTA_HH_INVALID_HANDLE) {
+            // No space for more HID device now.
+            BTIF_TRACE_ERROR("%s: Error, device %s added but addition failed", __FUNCTION__, bda_str);
+            memset(&(added_dev->bd_addr), 0, 6);
+            added_dev->dev_handle = BTA_HH_INVALID_HANDLE;
+            return BT_STATUS_FAIL;
+        }
+    }
+
+    /* Not checking the NORMALLY_Connectible flags from sdp record, and anyways sending this
+     request from host, for subsequent user initiated connection. If the remote is not in
+     pagescan mode, we will do 2 retries to connect before giving up */
+    tBTA_SEC sec_mask = BTUI_HH_SECURITY;
+    btif_hh_cb.status = BTIF_HH_DEV_CONNECTING;
+    BTA_HhOpen(*bda, BTA_HH_PROTO_RPT_MODE, sec_mask);
+
+    HAL_CBACK(bt_hh_callbacks, connection_state_cb, bd_addr, BTHH_CONN_STATE_CONNECTING);
+    return BT_STATUS_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         btif_hh_disconnect
+**
+** Description      disconnection initiated from the BTIF thread context
+**
+** Returns          void
+**
+*******************************************************************************/
+
+void btif_hh_disconnect(bt_bdaddr_t *bd_addr)
+{
+    btif_hh_device_t *p_dev;
+    p_dev = btif_hh_find_connected_dev_by_bda(bd_addr);
+    if (p_dev != NULL)
+    {
+        BTA_HhClose(p_dev->dev_handle);
+    }
+    else
+        BTIF_TRACE_DEBUG("%s-- Error: device not connected:",__FUNCTION__);
+}
+
+/*******************************************************************************
+**
+** Function         btif_btif_hh_setreport
+**
+** Description      setreport initiated from the BTIF thread context
+**
+** Returns          void
+**
+*******************************************************************************/
+void btif_hh_setreport(btif_hh_device_t *p_dev, bthh_report_type_t r_type, UINT16 size,
+                            UINT8* report)
+{
+    BT_HDR* p_buf = create_pbuf(size, report);
+    if (p_buf == NULL) {
+        APPL_TRACE_ERROR("%s: Error, failed to allocate RPT buffer, size = %d", __FUNCTION__, size);
+        return;
+    }
+    BTA_HhSetReport(p_dev->dev_handle, r_type, p_buf);
+}
+
+/*****************************************************************************
+**   Section name (Group of functions)
+*****************************************************************************/
+
+/*****************************************************************************
+**
+**   btif hh api functions (no context switch)
+**
+*****************************************************************************/
+
+/*******************************************************************************
+**
+** Function         btif_hh_upstreams_evt
+**
+** Description      Executes HH UPSTREAMS events in btif context
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btif_hh_upstreams_evt(UINT16 event, char* p_param)
+{
+    tBTA_HH *p_data = (tBTA_HH *)p_param;
+    btif_hh_device_t *p_dev = NULL;
+    int i;
+    int len, tmplen;
+
+    BTIF_TRACE_DEBUG("%s: event=%s", __FUNCTION__, dump_hh_event(event));
+
+    switch (event)
+    {
+        case BTA_HH_ENABLE_EVT:
+            BTIF_TRACE_DEBUG("%s: BTA_HH_ENABLE_EVT: status =%d",__FUNCTION__, p_data->status);
+            if (p_data->status == BTA_HH_OK) {
+                btif_hh_cb.status = BTIF_HH_ENABLED;
+                BTIF_TRACE_DEBUG("%s--Loading added devices",__FUNCTION__);
+                /* Add hid descriptors for already bonded hid devices*/
+                btif_storage_load_bonded_hid_info();
+            }
+            else {
+                btif_hh_cb.status = BTIF_HH_DISABLED;
+                BTIF_TRACE_WARNING("BTA_HH_ENABLE_EVT: Error, HH enabling failed, status = %d", p_data->status);
+            }
+            break;
+
+        case BTA_HH_DISABLE_EVT:
+            btif_hh_cb.status = BTIF_HH_DISABLED;
+            if (p_data->status == BTA_HH_OK) {
+                int i;
+                // Clear the control block
+                for (i = 0; i < BTIF_HH_MAX_HID; i++) {
+                    alarm_free(btif_hh_cb.devices[i].vup_timer);
+                }
+                memset(&btif_hh_cb, 0, sizeof(btif_hh_cb));
+                for (i = 0; i < BTIF_HH_MAX_HID; i++) {
+                    btif_hh_cb.devices[i].dev_status = BTHH_CONN_STATE_UNKNOWN;
+                }
+            }
+            else
+                BTIF_TRACE_WARNING("BTA_HH_DISABLE_EVT: Error, HH disabling failed, status = %d", p_data->status);
+            break;
+
+        case BTA_HH_OPEN_EVT:
+            BTIF_TRACE_WARNING("%s: BTA_HH_OPN_EVT: handle=%d, status =%d",__FUNCTION__, p_data->conn.handle, p_data->conn.status);
+            if (p_data->conn.status == BTA_HH_OK) {
+                p_dev = btif_hh_find_connected_dev_by_handle(p_data->conn.handle);
+                if (p_dev == NULL) {
+                    BTIF_TRACE_WARNING("BTA_HH_OPEN_EVT: Error, cannot find device with handle %d", p_data->conn.handle);
+                    btif_hh_cb.status = BTIF_HH_DEV_DISCONNECTED;
+                    // The connect request must come from device side and exceeded the connected
+                                   // HID device number.
+                    BTA_HhClose(p_data->conn.handle);
+                    HAL_CBACK(bt_hh_callbacks, connection_state_cb, (bt_bdaddr_t*) &p_data->conn.bda,BTHH_CONN_STATE_DISCONNECTED);
+                }
+                else if (p_dev->fd < 0) {
+                    BTIF_TRACE_WARNING("BTA_HH_OPEN_EVT: Error, failed to find the uhid driver...");
+                    memcpy(&(p_dev->bd_addr), p_data->conn.bda, BD_ADDR_LEN);
+                    //remove the connection  and then try again to reconnect from the mouse side to recover
+                    btif_hh_cb.status = BTIF_HH_DEV_DISCONNECTED;
+                    BTA_HhClose(p_data->conn.handle);
+                }
+                else {
+                    BTIF_TRACE_WARNING("BTA_HH_OPEN_EVT: Found device...Getting dscp info for handle ... %d",p_data->conn.handle);
+                    memcpy(&(p_dev->bd_addr), p_data->conn.bda, BD_ADDR_LEN);
+#ifdef BLUETOOTH_RTK_API
+                   tBT_DEVICE_TYPE device_type;
+                   tBLE_ADDR_TYPE addr_type;
+                   BTM_ReadDevInfo((UINT8*)&(p_dev->bd_addr),&device_type,&addr_type);
+                    if(device_type == BT_DEVICE_TYPE_BLE)
+                         rtkbt_api_NotifyHIDStatus(1, &(p_dev->bd_addr));
+#endif
+                    btif_hh_cb.status = BTIF_HH_DEV_CONNECTED;
+                    // Send set_idle if the peer_device is a keyboard
+                    if (check_cod((bt_bdaddr_t*)p_data->conn.bda, COD_HID_KEYBOARD )||
+                                check_cod((bt_bdaddr_t*)p_data->conn.bda, COD_HID_COMBO))
+                        BTA_HhSetIdle(p_data->conn.handle, 0);
+                    btif_hh_cb.p_curr_dev = btif_hh_find_connected_dev_by_handle(p_data->conn.handle);
+                    BTA_HhGetDscpInfo(p_data->conn.handle);
+                    p_dev->dev_status = BTHH_CONN_STATE_CONNECTED;
+#ifdef BLUETOOTH_RTK_COEX
+                    tBTM_SEC_DEV_REC *p_dev_rec = btm_find_dev (p_data->conn.bda);
+                    if ((p_dev_rec != NULL) &&((p_dev_rec->device_type &= BT_DEVICE_TYPE_BLE) == 0x02))
+                    {
+                        bt_property_t remote_ble_property;
+                        uint8_t  profile_map =0;
+                        btif_storage_get_remote_device_property((bt_bdaddr_t*)p_data->conn.bda, &remote_ble_property);
+                        if (check_cod((bt_bdaddr_t*)p_data->conn.bda, COD_HID_COMBO))
+                            profile_map |= 0x03;
+                        if (check_cod((bt_bdaddr_t*)p_data->conn.bda, COD_HID_KEYBOARD ))
+                            profile_map |= 0x02;
+                        if (check_cod((bt_bdaddr_t*)p_data->conn.bda, 0x500))
+                            profile_map |= 0x01;
+                        p_dev_rec->profile_map = profile_map;
+                        rtk_parse_manager_get_interface()->rtk_add_le_profile(p_data->conn.bda,  p_dev->dev_handle, profile_map);
+                    }
+#endif
+                    HAL_CBACK(bt_hh_callbacks, connection_state_cb,&(p_dev->bd_addr), p_dev->dev_status);
+                }
+            }
+            else {
+                bt_bdaddr_t *bdaddr = (bt_bdaddr_t*)p_data->conn.bda;
+                btif_dm_hh_open_failed(bdaddr);
+                p_dev = btif_hh_find_dev_by_bda(bdaddr);
+                if (p_dev != NULL) {
+                    btif_hh_stop_vup_timer(&(p_dev->bd_addr));
+                    if (p_dev->fd >= 0) {
+                        bta_hh_co_destroy(p_dev->fd);
+                        p_dev->fd = -1;
+                    }
+                    p_dev->dev_status = BTHH_CONN_STATE_DISCONNECTED;
+                }
+                HAL_CBACK(bt_hh_callbacks, connection_state_cb, (bt_bdaddr_t*) &p_data->conn.bda,BTHH_CONN_STATE_DISCONNECTED);
+                btif_hh_cb.status = BTIF_HH_DEV_DISCONNECTED;
+            }
+            break;
+
+        case BTA_HH_CLOSE_EVT:
+            BTIF_TRACE_DEBUG("BTA_HH_CLOSE_EVT: status = %d, handle = %d",
+            p_data->dev_status.status, p_data->dev_status.handle);
+            p_dev = btif_hh_find_connected_dev_by_handle(p_data->dev_status.handle);
+            if (p_dev != NULL) {
+                BTIF_TRACE_DEBUG("%s: uhid fd=%d local_vup=%d", __func__, p_dev->fd, p_dev->local_vup);
+                btif_hh_stop_vup_timer(&(p_dev->bd_addr));
+                /* If this is a locally initiated VUP, remove the bond as ACL got
+                 *  disconnected while VUP being processed.
+                 */
+                if (p_dev->local_vup)
+                {
+                    p_dev->local_vup = FALSE;
+                    BTA_DmRemoveDevice((UINT8 *)p_dev->bd_addr.address);
+                }
+
+                btif_hh_cb.status = BTIF_HH_DEV_DISCONNECTED;
+                p_dev->dev_status = BTHH_CONN_STATE_DISCONNECTED;
+
+                if (p_dev->fd >= 0) {
+                    bta_hh_co_destroy(p_dev->fd);
+                    p_dev->fd = -1;
+                }
+                HAL_CBACK(bt_hh_callbacks, connection_state_cb,&(p_dev->bd_addr), p_dev->dev_status);
+            }
+            else {
+                BTIF_TRACE_WARNING("Error: cannot find device with handle %d", p_data->dev_status.handle);
+            }
+            break;
+
+        case BTA_HH_GET_RPT_EVT: {
+            BT_HDR *hdr = p_data->hs_data.rsp_data.p_rpt_data;
+            UINT8 *data = NULL;
+            UINT16 len = 0;
+
+            BTIF_TRACE_DEBUG("BTA_HH_GET_RPT_EVT: status = %d, handle = %d",
+                 p_data->hs_data.status, p_data->hs_data.handle);
+            p_dev = btif_hh_find_connected_dev_by_handle(p_data->hs_data.handle);
+            if (p_dev) {
+                /* p_rpt_data is NULL in HANDSHAKE response case */
+                if (hdr) {
+                    data = (UINT8 *)(hdr + 1) + hdr->offset;
+                    len = hdr->len;
+                    HAL_CBACK(bt_hh_callbacks, get_report_cb,
+                              (bt_bdaddr_t*) &(p_dev->bd_addr),
+                              (bthh_status_t) p_data->hs_data.status, data, len);
+                } else {
+                    HAL_CBACK(bt_hh_callbacks, handshake_cb,
+                              (bt_bdaddr_t*) &(p_dev->bd_addr),
+                              (bthh_status_t) p_data->hs_data.status);
+                }
+            } else {
+                BTIF_TRACE_WARNING("Error: cannot find device with handle %d", p_data->hs_data.handle);
+            }
+            break;
+        }
+
+        case BTA_HH_SET_RPT_EVT:
+            BTIF_TRACE_DEBUG("BTA_HH_SET_RPT_EVT: status = %d, handle = %d",
+            p_data->dev_status.status, p_data->dev_status.handle);
+            p_dev = btif_hh_find_connected_dev_by_handle(p_data->dev_status.handle);
+            if (p_dev != NULL) {
+                HAL_CBACK(bt_hh_callbacks, handshake_cb,
+                          (bt_bdaddr_t*) &(p_dev->bd_addr),
+                          (bthh_status_t) p_data->hs_data.status);
+            }
+            break;
+
+        case BTA_HH_GET_PROTO_EVT:
+            p_dev = btif_hh_find_connected_dev_by_handle(p_data->dev_status.handle);
+            BTIF_TRACE_WARNING("BTA_HH_GET_PROTO_EVT: status = %d, handle = %d, proto = [%d], %s",
+                 p_data->hs_data.status, p_data->hs_data.handle,
+                 p_data->hs_data.rsp_data.proto_mode,
+                 (p_data->hs_data.rsp_data.proto_mode == BTA_HH_PROTO_RPT_MODE) ? "Report Mode" :
+                 (p_data->hs_data.rsp_data.proto_mode == BTA_HH_PROTO_BOOT_MODE) ? "Boot Mode" : "Unsupported");
+            if (p_data->hs_data.rsp_data.proto_mode != BTA_HH_PROTO_UNKNOWN) {
+                HAL_CBACK(bt_hh_callbacks, protocol_mode_cb,
+                          (bt_bdaddr_t*) &(p_dev->bd_addr),
+                          (bthh_status_t)p_data->hs_data.status,
+                          (bthh_protocol_mode_t) p_data->hs_data.rsp_data.proto_mode);
+            } else {
+                HAL_CBACK(bt_hh_callbacks, handshake_cb,
+                          (bt_bdaddr_t*) &(p_dev->bd_addr),
+                          (bthh_status_t)p_data->hs_data.status);
+            }
+            break;
+
+        case BTA_HH_SET_PROTO_EVT:
+            BTIF_TRACE_DEBUG("BTA_HH_SET_PROTO_EVT: status = %d, handle = %d",
+                 p_data->dev_status.status, p_data->dev_status.handle);
+            p_dev = btif_hh_find_connected_dev_by_handle(p_data->dev_status.handle);
+            if (p_dev) {
+                HAL_CBACK(bt_hh_callbacks, handshake_cb,
+                          (bt_bdaddr_t*)&(p_dev->bd_addr),
+                          (bthh_status_t)p_data->hs_data.status);
+            }
+            break;
+
+        case BTA_HH_GET_IDLE_EVT:
+            BTIF_TRACE_DEBUG("BTA_HH_GET_IDLE_EVT: handle = %d, status = %d, rate = %d",
+                 p_data->hs_data.handle, p_data->hs_data.status,
+                 p_data->hs_data.rsp_data.idle_rate);
+            break;
+
+        case BTA_HH_SET_IDLE_EVT:
+            BTIF_TRACE_DEBUG("BTA_HH_SET_IDLE_EVT: status = %d, handle = %d",
+            p_data->dev_status.status, p_data->dev_status.handle);
+            break;
+
+        case BTA_HH_GET_DSCP_EVT:
+            len = p_data->dscp_info.descriptor.dl_len;
+            BTIF_TRACE_DEBUG("BTA_HH_GET_DSCP_EVT: len = %d", len);
+            p_dev = btif_hh_cb.p_curr_dev;
+            if (p_dev == NULL) {
+                BTIF_TRACE_ERROR("BTA_HH_GET_DSCP_EVT: No HID device is currently connected");
+                return;
+            }
+            if (p_dev->fd < 0) {
+                LOG_ERROR(LOG_TAG, "BTA_HH_GET_DSCP_EVT: Error, failed to find the uhid driver...");
+                return;
+            }
+            {
+                char *cached_name = NULL;
+                bt_bdname_t bdname;
+                bt_property_t prop_name;
+                BTIF_STORAGE_FILL_PROPERTY(&prop_name, BT_PROPERTY_BDNAME,
+                                           sizeof(bt_bdname_t), &bdname);
+                if (btif_storage_get_remote_device_property(
+                    &p_dev->bd_addr, &prop_name) == BT_STATUS_SUCCESS)
+                {
+                    cached_name = (char *)bdname.name;
+                }
+                else
+                {
+                    cached_name = "Bluetooth HID";
+                }
+
+                BTIF_TRACE_WARNING("%s: name = %s", __FUNCTION__, cached_name);
+                bta_hh_co_send_hid_info(p_dev, cached_name,
+                    p_data->dscp_info.vendor_id, p_data->dscp_info.product_id,
+                    p_data->dscp_info.version,   p_data->dscp_info.ctry_code,
+                    len, p_data->dscp_info.descriptor.dsc_list);
+                if (btif_hh_add_added_dev(p_dev->bd_addr, p_dev->attr_mask)) {
+                    BD_ADDR bda;
+                    bdcpy(bda, p_dev->bd_addr.address);
+                    tBTA_HH_DEV_DSCP_INFO dscp_info;
+                    bt_status_t ret;
+                    bdcpy(bda, p_dev->bd_addr.address);
+                    btif_hh_copy_hid_info(&dscp_info, &p_data->dscp_info);
+                    BTIF_TRACE_DEBUG("BTA_HH_GET_DSCP_EVT:bda = %02x:%02x:%02x:%02x:%02x:%02x",
+                              p_dev->bd_addr.address[0], p_dev->bd_addr.address[1],
+                              p_dev->bd_addr.address[2],p_dev->bd_addr.address[3],
+                              p_dev->bd_addr.address[4], p_dev->bd_addr.address[5]);
+                    BTA_HhAddDev(bda, p_dev->attr_mask,p_dev->sub_class,p_dev->app_id, dscp_info);
+                    // write hid info to nvram
+                    ret = btif_storage_add_hid_device_info(&(p_dev->bd_addr), p_dev->attr_mask,p_dev->sub_class,p_dev->app_id,
+                                                        p_data->dscp_info.vendor_id, p_data->dscp_info.product_id,
+                                                        p_data->dscp_info.version,   p_data->dscp_info.ctry_code,
+                                                        p_data->dscp_info.ssr_max_latency, p_data->dscp_info.ssr_min_tout,
+                                                        len, p_data->dscp_info.descriptor.dsc_list);
+
+                    ASSERTC(ret == BT_STATUS_SUCCESS, "storing hid info failed", ret);
+                    BTIF_TRACE_WARNING("BTA_HH_GET_DSCP_EVT: Called add device");
+
+                    //Free buffer created for dscp_info;
+                    if (dscp_info.descriptor.dl_len >0 && dscp_info.descriptor.dsc_list != NULL)
+                    {
+                        osi_free_and_reset((void **)&dscp_info.descriptor.dsc_list);
+                        dscp_info.descriptor.dl_len = 0;
+                    }
+                }
+                else {
+                    //Device already added.
+                    BTIF_TRACE_WARNING("%s: Device already added ",__FUNCTION__);
+                }
+                /*Sync HID Keyboard lockstates */
+                tmplen = sizeof(hid_kb_numlock_on_list)
+                            / sizeof(tHID_KB_LIST);
+                for(i = 0; i< tmplen; i++)
+                {
+                    if(p_data->dscp_info.vendor_id
+                        == hid_kb_numlock_on_list[i].version_id &&
+                        p_data->dscp_info.product_id
+                        == hid_kb_numlock_on_list[i].product_id)
+                    {
+                        BTIF_TRACE_DEBUG("%s() idx[%d] Enabling "\
+                            "NUMLOCK for device :: %s", __FUNCTION__,
+                            i, hid_kb_numlock_on_list[i].kb_name);
+                        /* Enable NUMLOCK by default so that numeric
+                            keys work from first keyboard connect */
+                        set_keylockstate(BTIF_HH_KEYSTATE_MASK_NUMLOCK,
+                                        TRUE);
+                        sync_lockstate_on_connect(p_dev);
+                        /* End Sync HID Keyboard lockstates */
+                        break;
+                    }
+                }
+            }
+            break;
+
+        case BTA_HH_ADD_DEV_EVT:
+            BTIF_TRACE_WARNING("BTA_HH_ADD_DEV_EVT: status = %d, handle = %d",p_data->dev_info.status, p_data->dev_info.handle);
+            int i;
+            for (i = 0; i < BTIF_HH_MAX_ADDED_DEV; i++) {
+                if (memcmp(btif_hh_cb.added_devices[i].bd_addr.address, p_data->dev_info.bda, 6) == 0) {
+                    if (p_data->dev_info.status == BTA_HH_OK) {
+                        btif_hh_cb.added_devices[i].dev_handle = p_data->dev_info.handle;
+                    }
+                    else {
+                        memset(btif_hh_cb.added_devices[i].bd_addr.address, 0, 6);
+                        btif_hh_cb.added_devices[i].dev_handle = BTA_HH_INVALID_HANDLE;
+                    }
+                    break;
+                }
+            }
+            break;
+        case BTA_HH_RMV_DEV_EVT:
+                BTIF_TRACE_DEBUG("BTA_HH_RMV_DEV_EVT: status = %d, handle = %d",
+                     p_data->dev_info.status, p_data->dev_info.handle);
+                BTIF_TRACE_DEBUG("BTA_HH_RMV_DEV_EVT:bda = %02x:%02x:%02x:%02x:%02x:%02x",
+                     p_data->dev_info.bda[0], p_data->dev_info.bda[1], p_data->dev_info.bda[2],
+                     p_data->dev_info.bda[3], p_data->dev_info.bda[4], p_data->dev_info.bda[5]);
+                break;
+
+        case BTA_HH_VC_UNPLUG_EVT:
+                BTIF_TRACE_DEBUG("BTA_HH_VC_UNPLUG_EVT: status = %d, handle = %d",
+                     p_data->dev_status.status, p_data->dev_status.handle);
+                p_dev = btif_hh_find_connected_dev_by_handle(p_data->dev_status.handle);
+                btif_hh_cb.status = BTIF_HH_DEV_DISCONNECTED;
+                if (p_dev != NULL) {
+                    BTIF_TRACE_DEBUG("BTA_HH_VC_UNPLUG_EVT:bda = %02x:%02x:%02x:%02x:%02x:%02x",
+                         p_dev->bd_addr.address[0], p_dev->bd_addr.address[1],
+                         p_dev->bd_addr.address[2],p_dev->bd_addr.address[3],
+                         p_dev->bd_addr.address[4], p_dev->bd_addr.address[5]);
+                    /* Stop the VUP timer */
+                    btif_hh_stop_vup_timer(&(p_dev->bd_addr));
+                    p_dev->dev_status = BTHH_CONN_STATE_DISCONNECTED;
+                    BTIF_TRACE_DEBUG("%s---Sending connection state change", __FUNCTION__);
+                    HAL_CBACK(bt_hh_callbacks, connection_state_cb,&(p_dev->bd_addr), p_dev->dev_status);
+                    BTIF_TRACE_DEBUG("%s---Removing HID bond", __FUNCTION__);
+                    /* If it is locally initiated VUP or remote device has its major COD as
+                    Peripheral removed the bond.*/
+                    if (p_dev->local_vup  || check_cod_hid(&(p_dev->bd_addr)))
+                    {
+                        p_dev->local_vup = FALSE;
+                        BTA_DmRemoveDevice((UINT8 *)p_dev->bd_addr.address);
+                    }
+                    else
+                        btif_hh_remove_device(p_dev->bd_addr);
+                    HAL_CBACK(bt_hh_callbacks, virtual_unplug_cb,&(p_dev->bd_addr),
+                                    p_data->dev_status.status);
+                }
+                break;
+
+        case BTA_HH_API_ERR_EVT  :
+                LOG_INFO(LOG_TAG, "BTA_HH API_ERR");
+                break;
+
+            default:
+                BTIF_TRACE_WARNING("%s: Unhandled event: %d", __FUNCTION__, event);
+                break;
+        }
+}
+
+/*******************************************************************************
+**
+** Function         bte_hh_evt
+**
+** Description      Switches context from BTE to BTIF for all HH events
+**
+** Returns          void
+**
+*******************************************************************************/
+
+static void bte_hh_evt(tBTA_HH_EVT event, tBTA_HH *p_data)
+{
+    bt_status_t status;
+    int param_len = 0;
+
+    if (BTA_HH_ENABLE_EVT == event)
+        param_len = sizeof(tBTA_HH_STATUS);
+    else if (BTA_HH_OPEN_EVT == event)
+        param_len = sizeof(tBTA_HH_CONN);
+    else if (BTA_HH_DISABLE_EVT == event)
+        param_len = sizeof(tBTA_HH_STATUS);
+    else if (BTA_HH_CLOSE_EVT == event)
+        param_len = sizeof(tBTA_HH_CBDATA);
+    else if (BTA_HH_GET_DSCP_EVT == event)
+        param_len = sizeof(tBTA_HH_DEV_DSCP_INFO);
+    else if ((BTA_HH_GET_PROTO_EVT == event) || (BTA_HH_GET_RPT_EVT == event)|| (BTA_HH_GET_IDLE_EVT == event))
+        param_len = sizeof(tBTA_HH_HSDATA);
+    else if ((BTA_HH_SET_PROTO_EVT == event) || (BTA_HH_SET_RPT_EVT == event) || (BTA_HH_VC_UNPLUG_EVT == event) || (BTA_HH_SET_IDLE_EVT == event))
+        param_len = sizeof(tBTA_HH_CBDATA);
+    else if ((BTA_HH_ADD_DEV_EVT == event) || (BTA_HH_RMV_DEV_EVT == event) )
+        param_len = sizeof(tBTA_HH_DEV_INFO);
+    else if (BTA_HH_API_ERR_EVT == event)
+        param_len = 0;
+    /* switch context to btif task context (copy full union size for convenience) */
+    status = btif_transfer_context(btif_hh_upstreams_evt, (uint16_t)event, (void*)p_data, param_len, NULL);
+
+    /* catch any failed context transfers */
+    ASSERTC(status == BT_STATUS_SUCCESS, "context transfer failed", status);
+}
+
+/*******************************************************************************
+**
+** Function         btif_hh_handle_evt
+**
+** Description      Switches context for immediate callback
+**
+** Returns          void
+**
+*******************************************************************************/
+
+static void btif_hh_handle_evt(UINT16 event, char *p_param)
+{
+    bt_bdaddr_t *bd_addr = (bt_bdaddr_t*)p_param;
+    BTIF_TRACE_EVENT("%s: event=%d", __FUNCTION__, event);
+    int ret;
+    switch(event)
+    {
+        case BTIF_HH_CONNECT_REQ_EVT:
+        {
+            ret = btif_hh_connect(bd_addr);
+            if(ret == BT_STATUS_SUCCESS)
+            {
+                HAL_CBACK(bt_hh_callbacks, connection_state_cb,bd_addr,BTHH_CONN_STATE_CONNECTING);
+            }
+            else
+                HAL_CBACK(bt_hh_callbacks, connection_state_cb,bd_addr,BTHH_CONN_STATE_DISCONNECTED);
+        }
+        break;
+
+        case BTIF_HH_DISCONNECT_REQ_EVT:
+        {
+            BTIF_TRACE_EVENT("%s: event=%d", __FUNCTION__, event);
+            btif_hh_disconnect(bd_addr);
+            HAL_CBACK(bt_hh_callbacks, connection_state_cb,bd_addr,BTHH_CONN_STATE_DISCONNECTING);
+        }
+        break;
+
+        case BTIF_HH_VUP_REQ_EVT:
+        {
+            BTIF_TRACE_EVENT("%s: event=%d", __FUNCTION__, event);
+            ret = btif_hh_virtual_unplug(bd_addr);
+        }
+        break;
+
+        default:
+        {
+            BTIF_TRACE_WARNING("%s : Unknown event 0x%x", __FUNCTION__, event);
+        }
+        break;
+    }
+}
+
+/*******************************************************************************
+**
+** Function      btif_hh_timer_timeout
+**
+** Description   Process timer timeout
+**
+** Returns      void
+*******************************************************************************/
+void btif_hh_timer_timeout(void *data)
+{
+    btif_hh_device_t *p_dev = (btif_hh_device_t *)data;
+    tBTA_HH_EVT event = BTA_HH_VC_UNPLUG_EVT;
+    tBTA_HH p_data;
+    int param_len = sizeof(tBTA_HH_CBDATA);
+
+    BTIF_TRACE_DEBUG("%s",  __func__);
+    if (p_dev->dev_status != BTHH_CONN_STATE_CONNECTED)
+        return;
+
+    memset(&p_data, 0, sizeof(tBTA_HH));
+    p_data.dev_status.status = BTHH_ERR;
+    p_data.dev_status.handle = p_dev->dev_handle;
+
+    /* switch context to btif task context */
+    btif_transfer_context(btif_hh_upstreams_evt, (uint16_t)event,
+                          (char *)&p_data, param_len, NULL);
+}
+
+/*******************************************************************************
+**
+** Function         btif_hh_init
+**
+** Description     initializes the hh interface
+**
+** Returns         bt_status_t
+**
+*******************************************************************************/
+static bt_status_t init( bthh_callbacks_t* callbacks )
+{
+    UINT32 i;
+    BTIF_TRACE_EVENT("%s", __FUNCTION__);
+
+    bt_hh_callbacks = callbacks;
+    memset(&btif_hh_cb, 0, sizeof(btif_hh_cb));
+    for (i = 0; i < BTIF_HH_MAX_HID; i++){
+        btif_hh_cb.devices[i].dev_status = BTHH_CONN_STATE_UNKNOWN;
+    }
+    /* Invoke the enable service API to the core to set the appropriate service_id */
+    btif_enable_service(BTA_HID_SERVICE_ID);
+    return BT_STATUS_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function        connect
+**
+** Description     connect to hid device
+**
+** Returns         bt_status_t
+**
+*******************************************************************************/
+static bt_status_t connect( bt_bdaddr_t *bd_addr)
+{
+    if(btif_hh_cb.status != BTIF_HH_DEV_CONNECTING)
+    {
+        btif_transfer_context(btif_hh_handle_evt, BTIF_HH_CONNECT_REQ_EVT,
+                                 (char*)bd_addr, sizeof(bt_bdaddr_t), NULL);
+        return BT_STATUS_SUCCESS;
+    }
+    else
+        return BT_STATUS_BUSY;
+}
+
+/*******************************************************************************
+**
+** Function         disconnect
+**
+** Description      disconnect from hid device
+**
+** Returns         bt_status_t
+**
+*******************************************************************************/
+static bt_status_t disconnect( bt_bdaddr_t *bd_addr )
+{
+    CHECK_BTHH_INIT();
+    btif_hh_device_t *p_dev;
+
+    if (btif_hh_cb.status == BTIF_HH_DISABLED)
+    {
+        BTIF_TRACE_WARNING("%s: Error, HH status = %d", __FUNCTION__, btif_hh_cb.status);
+        return BT_STATUS_FAIL;
+    }
+    p_dev = btif_hh_find_connected_dev_by_bda(bd_addr);
+    if (p_dev != NULL)
+    {
+        return btif_transfer_context(btif_hh_handle_evt, BTIF_HH_DISCONNECT_REQ_EVT,
+                     (char*)bd_addr, sizeof(bt_bdaddr_t), NULL);
+    }
+    else
+    {
+        BTIF_TRACE_WARNING("%s: Error, device  not opened.", __FUNCTION__);
+        return BT_STATUS_FAIL;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         virtual_unplug
+**
+** Description      Virtual UnPlug (VUP) the specified HID device.
+**
+** Returns         bt_status_t
+**
+*******************************************************************************/
+static bt_status_t virtual_unplug (bt_bdaddr_t *bd_addr)
+{
+    CHECK_BTHH_INIT();
+    btif_hh_device_t *p_dev;
+    char bd_str[18];
+    sprintf(bd_str, "%02X:%02X:%02X:%02X:%02X:%02X",
+            bd_addr->address[0],  bd_addr->address[1],  bd_addr->address[2],  bd_addr->address[3],
+            bd_addr->address[4], bd_addr->address[5]);
+    if (btif_hh_cb.status == BTIF_HH_DISABLED)
+    {
+        BTIF_TRACE_ERROR("%s: Error, HH status = %d", __FUNCTION__, btif_hh_cb.status);
+        return BT_STATUS_FAIL;
+    }
+    p_dev = btif_hh_find_dev_by_bda(bd_addr);
+    if (!p_dev)
+    {
+        BTIF_TRACE_ERROR("%s: Error, device %s not opened.", __FUNCTION__, bd_str);
+        return BT_STATUS_FAIL;
+    }
+    btif_transfer_context(btif_hh_handle_evt, BTIF_HH_VUP_REQ_EVT,
+                                 (char*)bd_addr, sizeof(bt_bdaddr_t), NULL);
+    return BT_STATUS_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         set_info
+**
+** Description      Set the HID device descriptor for the specified HID device.
+**
+** Returns         bt_status_t
+**
+*******************************************************************************/
+static bt_status_t set_info (bt_bdaddr_t *bd_addr, bthh_hid_info_t hid_info )
+{
+    CHECK_BTHH_INIT();
+    tBTA_HH_DEV_DSCP_INFO dscp_info;
+    BD_ADDR* bda = (BD_ADDR*) bd_addr;
+
+    BTIF_TRACE_DEBUG("addr = %02X:%02X:%02X:%02X:%02X:%02X",
+         (*bda)[0], (*bda)[1], (*bda)[2], (*bda)[3], (*bda)[4], (*bda)[5]);
+    BTIF_TRACE_DEBUG("%s: sub_class = 0x%02x, app_id = %d, vendor_id = 0x%04x, "
+         "product_id = 0x%04x, version= 0x%04x",
+         __FUNCTION__, hid_info.sub_class,
+         hid_info.app_id, hid_info.vendor_id, hid_info.product_id,
+         hid_info.version);
+
+    if (btif_hh_cb.status == BTIF_HH_DISABLED)
+    {
+        BTIF_TRACE_ERROR("%s: Error, HH status = %d", __FUNCTION__, btif_hh_cb.status);
+        return BT_STATUS_FAIL;
+    }
+
+    dscp_info.vendor_id  = hid_info.vendor_id;
+    dscp_info.product_id = hid_info.product_id;
+    dscp_info.version    = hid_info.version;
+    dscp_info.ctry_code  = hid_info.ctry_code;
+
+    dscp_info.descriptor.dl_len = hid_info.dl_len;
+    dscp_info.descriptor.dsc_list = (UINT8 *)osi_malloc(dscp_info.descriptor.dl_len);
+    memcpy(dscp_info.descriptor.dsc_list, &(hid_info.dsc_list), hid_info.dl_len);
+
+    if (btif_hh_add_added_dev(*bd_addr, hid_info.attr_mask))
+    {
+        BTA_HhAddDev(*bda, hid_info.attr_mask, hid_info.sub_class,
+                     hid_info.app_id, dscp_info);
+    }
+
+    osi_free_and_reset((void **)&dscp_info.descriptor.dsc_list);
+
+    return BT_STATUS_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         get_protocol
+**
+** Description      Get the HID proto mode.
+**
+** Returns         bt_status_t
+**
+*******************************************************************************/
+static bt_status_t get_protocol (bt_bdaddr_t *bd_addr, bthh_protocol_mode_t protocolMode)
+{
+    CHECK_BTHH_INIT();
+    btif_hh_device_t *p_dev;
+    BD_ADDR* bda = (BD_ADDR*) bd_addr;
+    UNUSED(protocolMode);
+
+    BTIF_TRACE_DEBUG(" addr = %02X:%02X:%02X:%02X:%02X:%02X",
+         (*bda)[0], (*bda)[1], (*bda)[2], (*bda)[3], (*bda)[4], (*bda)[5]);
+
+    if (btif_hh_cb.status == BTIF_HH_DISABLED) {
+        BTIF_TRACE_ERROR("%s: Error, HH status = %d", __FUNCTION__, btif_hh_cb.status);
+        return BT_STATUS_FAIL;
+    }
+
+    p_dev = btif_hh_find_connected_dev_by_bda(bd_addr);
+    if (p_dev != NULL) {
+
+        BTA_HhGetProtoMode(p_dev->dev_handle);
+    }
+    else {
+        return BT_STATUS_FAIL;
+    }
+    return BT_STATUS_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         set_protocol
+**
+** Description      Set the HID proto mode.
+**
+** Returns         bt_status_t
+**
+*******************************************************************************/
+static bt_status_t set_protocol (bt_bdaddr_t *bd_addr, bthh_protocol_mode_t protocolMode)
+{
+    CHECK_BTHH_INIT();
+    btif_hh_device_t *p_dev;
+    UINT8 proto_mode = protocolMode;
+    BD_ADDR* bda = (BD_ADDR*) bd_addr;
+
+    BTIF_TRACE_DEBUG("%s:proto_mode = %d", __FUNCTION__,protocolMode);
+
+    BTIF_TRACE_DEBUG("addr = %02X:%02X:%02X:%02X:%02X:%02X",
+         (*bda)[0], (*bda)[1], (*bda)[2], (*bda)[3], (*bda)[4], (*bda)[5]);
+
+    if (btif_hh_cb.status == BTIF_HH_DISABLED) {
+        BTIF_TRACE_ERROR("%s: Error, HH status = %d", __FUNCTION__, btif_hh_cb.status);
+        return BT_STATUS_FAIL;
+    }
+
+    p_dev = btif_hh_find_connected_dev_by_bda(bd_addr);
+    if (p_dev == NULL) {
+        BTIF_TRACE_WARNING(" Error, device %02X:%02X:%02X:%02X:%02X:%02X not opened.",
+             (*bda)[0], (*bda)[1], (*bda)[2], (*bda)[3], (*bda)[4], (*bda)[5]);
+        return BT_STATUS_FAIL;
+    }
+    else if (protocolMode != BTA_HH_PROTO_RPT_MODE && protocolMode != BTA_HH_PROTO_BOOT_MODE) {
+        BTIF_TRACE_WARNING("%s: Error, device proto_mode = %d.", __func__, proto_mode);
+        return BT_STATUS_FAIL;
+    }
+    else {
+        BTA_HhSetProtoMode(p_dev->dev_handle, protocolMode);
+    }
+
+    return BT_STATUS_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         get_report
+**
+** Description      Send a GET_REPORT to HID device.
+**
+** Returns         bt_status_t
+**
+*******************************************************************************/
+static bt_status_t get_report (bt_bdaddr_t *bd_addr, bthh_report_type_t reportType, uint8_t reportId, int bufferSize)
+{
+    CHECK_BTHH_INIT();
+    btif_hh_device_t *p_dev;
+    BD_ADDR* bda = (BD_ADDR*) bd_addr;
+
+    BTIF_TRACE_DEBUG("%s: r_type = %d, rpt_id = %d, buf_size = %d", __func__,
+          reportType, reportId, bufferSize);
+
+    BTIF_TRACE_DEBUG("addr = %02X:%02X:%02X:%02X:%02X:%02X",
+         (*bda)[0], (*bda)[1], (*bda)[2], (*bda)[3], (*bda)[4], (*bda)[5]);
+
+    if (btif_hh_cb.status == BTIF_HH_DISABLED) {
+        BTIF_TRACE_ERROR("%s: Error, HH status = %d", __FUNCTION__, btif_hh_cb.status);
+        return BT_STATUS_FAIL;
+    }
+
+    p_dev = btif_hh_find_connected_dev_by_bda(bd_addr);
+    if (p_dev == NULL) {
+        BTIF_TRACE_ERROR("%s: Error, device %02X:%02X:%02X:%02X:%02X:%02X not opened.", __func__,
+             (*bda)[0], (*bda)[1], (*bda)[2], (*bda)[3], (*bda)[4], (*bda)[5]);
+        return BT_STATUS_FAIL;
+    }
+    else if ( ((int) reportType) <= BTA_HH_RPTT_RESRV || ((int) reportType) > BTA_HH_RPTT_FEATURE) {
+        BTIF_TRACE_ERROR(" Error, device %02X:%02X:%02X:%02X:%02X:%02X not opened.",
+             (*bda)[0], (*bda)[1], (*bda)[2], (*bda)[3], (*bda)[4], (*bda)[5]);
+        return BT_STATUS_FAIL;
+    }
+    else {
+        BTA_HhGetReport(p_dev->dev_handle, reportType,
+                        reportId, bufferSize);
+    }
+
+    return BT_STATUS_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         set_report
+**
+** Description      Send a SET_REPORT to HID device.
+**
+** Returns         bt_status_t
+**
+*******************************************************************************/
+static bt_status_t set_report (bt_bdaddr_t *bd_addr, bthh_report_type_t reportType, char* report)
+{
+    CHECK_BTHH_INIT();
+    btif_hh_device_t *p_dev;
+    BD_ADDR* bda = (BD_ADDR*) bd_addr;
+
+    BTIF_TRACE_DEBUG("%s:reportType = %d", __FUNCTION__,reportType);
+
+    BTIF_TRACE_DEBUG("addr = %02X:%02X:%02X:%02X:%02X:%02X",
+         (*bda)[0], (*bda)[1], (*bda)[2], (*bda)[3], (*bda)[4], (*bda)[5]);
+
+    if (btif_hh_cb.status == BTIF_HH_DISABLED) {
+        BTIF_TRACE_ERROR("%s: Error, HH status = %d", __FUNCTION__, btif_hh_cb.status);
+        return BT_STATUS_FAIL;
+    }
+
+    p_dev = btif_hh_find_connected_dev_by_bda(bd_addr);
+    if (p_dev == NULL) {
+        BTIF_TRACE_ERROR("%s: Error, device %02X:%02X:%02X:%02X:%02X:%02X not opened.", __func__,
+             (*bda)[0], (*bda)[1], (*bda)[2], (*bda)[3], (*bda)[4], (*bda)[5]);
+        return BT_STATUS_FAIL;
+    }
+    else if ( ( (int) reportType) <= BTA_HH_RPTT_RESRV || ( (int) reportType) > BTA_HH_RPTT_FEATURE) {
+        BTIF_TRACE_ERROR(" Error, device %02X:%02X:%02X:%02X:%02X:%02X not opened.",
+             (*bda)[0], (*bda)[1], (*bda)[2], (*bda)[3], (*bda)[4], (*bda)[5]);
+        return BT_STATUS_FAIL;
+    }
+    else {
+        int    hex_bytes_filled;
+        size_t len = (strlen(report) + 1) / 2;
+        UINT8  *hexbuf = osi_calloc(len);
+
+        /* Build a SetReport data buffer */
+        //TODO
+        hex_bytes_filled = ascii_2_hex(report, len, hexbuf);
+        LOG_INFO(LOG_TAG, "Hex bytes filled, hex value: %d", hex_bytes_filled);
+        if (hex_bytes_filled) {
+            BT_HDR* p_buf = create_pbuf(hex_bytes_filled, hexbuf);
+            if (p_buf == NULL) {
+                BTIF_TRACE_ERROR("%s: Error, failed to allocate RPT buffer, len = %d",
+                                  __FUNCTION__, hex_bytes_filled);
+                osi_free(hexbuf);
+                return BT_STATUS_FAIL;
+            }
+            BTA_HhSetReport(p_dev->dev_handle, reportType, p_buf);
+            osi_free(hexbuf);
+            return BT_STATUS_SUCCESS;
+        }
+        osi_free(hexbuf);
+        return BT_STATUS_FAIL;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         send_data
+**
+** Description      Send a SEND_DATA to HID device.
+**
+** Returns         bt_status_t
+**
+*******************************************************************************/
+static bt_status_t send_data (bt_bdaddr_t *bd_addr, char* data)
+{
+    CHECK_BTHH_INIT();
+    btif_hh_device_t *p_dev;
+    BD_ADDR* bda = (BD_ADDR*) bd_addr;
+
+    BTIF_TRACE_DEBUG("%s", __FUNCTION__);
+
+    BTIF_TRACE_DEBUG("addr = %02X:%02X:%02X:%02X:%02X:%02X",
+         (*bda)[0], (*bda)[1], (*bda)[2], (*bda)[3], (*bda)[4], (*bda)[5]);
+
+    if (btif_hh_cb.status == BTIF_HH_DISABLED) {
+        BTIF_TRACE_ERROR("%s: Error, HH status = %d", __FUNCTION__, btif_hh_cb.status);
+        return BT_STATUS_FAIL;
+    }
+
+    p_dev = btif_hh_find_connected_dev_by_bda(bd_addr);
+    if (p_dev == NULL) {
+        BTIF_TRACE_ERROR("%s: Error, device %02X:%02X:%02X:%02X:%02X:%02X not opened.", __func__,
+             (*bda)[0], (*bda)[1], (*bda)[2], (*bda)[3], (*bda)[4], (*bda)[5]);
+        return BT_STATUS_FAIL;
+    }
+
+    else {
+        int    hex_bytes_filled;
+        size_t len = (strlen(data) + 1) / 2;
+        UINT8 *hexbuf = osi_calloc(len);
+
+        /* Build a SendData data buffer */
+        hex_bytes_filled = ascii_2_hex(data, len, hexbuf);
+        BTIF_TRACE_ERROR("Hex bytes filled, hex value: %d, %d", hex_bytes_filled, len);
+
+        if (hex_bytes_filled) {
+            BT_HDR* p_buf = create_pbuf(hex_bytes_filled, hexbuf);
+            if (p_buf == NULL) {
+                BTIF_TRACE_ERROR("%s: Error, failed to allocate RPT buffer, len = %d",
+                                  __FUNCTION__, hex_bytes_filled);
+                osi_free(hexbuf);
+                return BT_STATUS_FAIL;
+            }
+            p_buf->layer_specific = BTA_HH_RPTT_OUTPUT;
+            BTA_HhSendData(p_dev->dev_handle, *bda, p_buf);
+            osi_free(hexbuf);
+            return BT_STATUS_SUCCESS;
+        }
+        osi_free(hexbuf);
+        return BT_STATUS_FAIL;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         cleanup
+**
+** Description      Closes the HH interface
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+static void  cleanup( void )
+{
+    BTIF_TRACE_EVENT("%s", __FUNCTION__);
+    btif_hh_device_t *p_dev;
+    int i;
+    if (btif_hh_cb.status == BTIF_HH_DISABLED) {
+        BTIF_TRACE_WARNING("%s: HH disabling or disabled already, status = %d", __FUNCTION__, btif_hh_cb.status);
+        return;
+    }
+    btif_hh_cb.status = BTIF_HH_DISABLING;
+    for (i = 0; i < BTIF_HH_MAX_HID; i++) {
+         p_dev = &btif_hh_cb.devices[i];
+         if (p_dev->dev_status != BTHH_CONN_STATE_UNKNOWN && p_dev->fd >= 0) {
+             BTIF_TRACE_DEBUG("%s: Closing uhid fd = %d", __FUNCTION__, p_dev->fd);
+             if (p_dev->fd >= 0) {
+                 bta_hh_co_destroy(p_dev->fd);
+                 p_dev->fd = -1;
+             }
+             p_dev->hh_keep_polling = 0;
+             p_dev->hh_poll_thread_id = -1;
+         }
+     }
+
+    if (bt_hh_callbacks)
+    {
+        btif_disable_service(BTA_HID_SERVICE_ID);
+        bt_hh_callbacks = NULL;
+    }
+
+}
+#ifdef BLUETOOTH_RTK
+static const bthh_interface_t bthhInterface = {
+    .size = sizeof(bthhInterface),
+    .init = init,
+    .connect = connect,
+    .disconnect = disconnect,
+    .virtual_unplug = virtual_unplug,
+    .set_info = set_info,
+    .get_protocol = get_protocol,
+    .set_protocol = set_protocol,
+//    get_idle_time,
+//    set_idle_time,
+    .get_report = get_report,
+    .set_report = set_report,
+    .send_data = send_data,
+    .cleanup = cleanup,
+};
+#else
+static const bthh_interface_t bthhInterface = {
+    sizeof(bthhInterface),
+    init,
+    connect,
+    disconnect,
+    virtual_unplug,
+    set_info,
+    get_protocol,
+    set_protocol,
+//    get_idle_time,
+//    set_idle_time,
+    get_report,
+    set_report,
+    send_data,
+    cleanup,
+};
+#endif
+/*******************************************************************************
+**
+** Function         btif_hh_execute_service
+**
+** Description      Initializes/Shuts down the service
+**
+** Returns          BT_STATUS_SUCCESS on success, BT_STATUS_FAIL otherwise
+**
+*******************************************************************************/
+bt_status_t btif_hh_execute_service(BOOLEAN b_enable)
+{
+     if (b_enable)
+     {
+          /* Enable and register with BTA-HH */
+          BTA_HhEnable(BTUI_HH_SECURITY, bte_hh_evt);
+     }
+     else {
+         /* Disable HH */
+         BTA_HhDisable();
+     }
+     return BT_STATUS_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         btif_hh_get_interface
+**
+** Description      Get the hh callback interface
+**
+** Returns          bthh_interface_t
+**
+*******************************************************************************/
+const bthh_interface_t *btif_hh_get_interface()
+{
+    BTIF_TRACE_EVENT("%s", __FUNCTION__);
+    return &bthhInterface;
+}
diff --git a/rtkbt/code/bt/btif/src/btif_hl.c b/rtkbt/code/bt/btif/src/btif_hl.c
new file mode 100755
index 0000000..d21bd41
--- /dev/null
+++ b/rtkbt/code/bt/btif/src/btif_hl.c
@@ -0,0 +1,4975 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/************************************************************************************
+ *
+ *  Filename:      btif_hl.c
+ *
+ *  Description:   Health Device Profile Bluetooth Interface
+ *
+ *
+ ***********************************************************************************/
+#define LOG_TAG "bt_btif_hl"
+
+#include "btif_hl.h"
+
+#include <assert.h>
+#include <ctype.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <pthread.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/poll.h>
+#include <sys/prctl.h>
+#include <sys/select.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <sys/un.h>
+#include <time.h>
+#include <unistd.h>
+
+#include <hardware/bt_hl.h>
+
+#include "bta_api.h"
+#include "btif_common.h"
+#include "btif_storage.h"
+#include "btif_util.h"
+#include "btu.h"
+#include "mca_api.h"
+#include "osi/include/list.h"
+#include "osi/include/log.h"
+
+#define MAX_DATATYPE_SUPPORTED 8
+
+extern int btif_hl_update_maxfd( int max_org_s);
+extern void btif_hl_select_monitor_callback( fd_set *p_cur_set, fd_set *p_org_set );
+extern void btif_hl_select_wakeup_callback( fd_set *p_org_set , int wakeup_signal );
+extern int btif_hl_update_maxfd( int max_org_s);
+extern void btif_hl_select_monitor_callback( fd_set *p_cur_set, fd_set *p_org_set );
+extern void btif_hl_select_wakeup_callback( fd_set *p_org_set , int wakeup_signal );
+extern void btif_hl_soc_thread_init(void);
+extern void btif_hl_release_mcl_sockets(UINT8 app_idx, UINT8 mcl_idx);
+extern BOOLEAN btif_hl_create_socket(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx);
+extern void btif_hl_release_socket(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx);
+
+extern fixed_queue_t *btu_general_alarm_queue;
+
+btif_hl_cb_t btif_hl_cb;
+btif_hl_cb_t *p_btif_hl_cb = &btif_hl_cb;
+
+/************************************************************************************
+**  Static variables
+************************************************************************************/
+static bthl_callbacks_t  bt_hl_callbacks_cb;
+static bthl_callbacks_t *bt_hl_callbacks=NULL;
+
+/* signal socketpair to wake up select loop */
+
+const int btif_hl_signal_select_wakeup = 1;
+const int btif_hl_signal_select_exit = 2;
+const int btif_hl_signal_select_close_connected = 3;
+
+static int listen_s = -1;
+static int connected_s = -1;
+static int select_thread_id = -1;
+static int signal_fds[2] = { -1, -1 };
+static list_t *soc_queue;
+static int reg_counter;
+
+static inline int btif_hl_select_wakeup(void);
+static inline int btif_hl_select_close_connected(void);
+static inline int btif_hl_close_select_thread(void);
+static UINT8 btif_hl_get_next_app_id(void);
+static int btif_hl_get_next_channel_id(UINT8 app_id);
+static void btif_hl_init_next_app_id(void);
+static void btif_hl_init_next_channel_id(void);
+static void btif_hl_ctrl_cback(tBTA_HL_CTRL_EVT event, tBTA_HL_CTRL *p_data);
+static void btif_hl_set_state(btif_hl_state_t state);
+static btif_hl_state_t btif_hl_get_state(void);
+static void btif_hl_cback(tBTA_HL_EVT event, tBTA_HL *p_data);
+static void btif_hl_proc_cb_evt(UINT16 event, char* p_param);
+
+#define CHECK_CALL_CBACK(P_CB, P_CBACK, ...)\
+    if (P_CB && P_CB->P_CBACK) {            \
+        P_CB->P_CBACK(__VA_ARGS__);         \
+    }                                       \
+    else {                                  \
+        ASSERTC(0, "Callback is NULL", 0);  \
+    }
+
+#define BTIF_HL_CALL_CBACK(P_CB, P_CBACK, ...)\
+     if((p_btif_hl_cb->state != BTIF_HL_STATE_DISABLING) &&\
+         (p_btif_hl_cb->state != BTIF_HL_STATE_DISABLED))  \
+     {                                                     \
+        if (P_CB && P_CB->P_CBACK) {                       \
+            P_CB->P_CBACK(__VA_ARGS__);                    \
+        }                                                  \
+        else {                                             \
+            ASSERTC(0, "Callback is NULL", 0);             \
+        }                                                  \
+    }
+
+#define CHECK_BTHL_INIT() if (bt_hl_callbacks == NULL)\
+    {\
+        BTIF_TRACE_WARNING("BTHL: %s: BTHL not initialized", __FUNCTION__);\
+        return BT_STATUS_NOT_READY;\
+    }\
+    else\
+    {\
+        BTIF_TRACE_EVENT("BTHL: %s", __FUNCTION__);\
+    }
+
+static const btif_hl_data_type_cfg_t data_type_table[] = {
+    /* Data Specilization                   Ntx     Nrx (from Bluetooth SIG's HDP whitepaper)*/
+    {BTIF_HL_DATA_TYPE_PULSE_OXIMETER,      9216,   256},
+    {BTIF_HL_DATA_TYPE_BLOOD_PRESSURE_MON,  896,    224},
+    {BTIF_HL_DATA_TYPE_BODY_THERMOMETER,    896,    224},
+    {BTIF_HL_DATA_TYPE_BODY_WEIGHT_SCALE,   896,    224},
+    {BTIF_HL_DATA_TYPE_GLUCOSE_METER,       896,    224},
+    {BTIF_HL_DATA_TYPE_STEP_COUNTER,        6624,   224},
+    {BTIF_HL_DATA_TYPE_BCA,                 7730,   1230},
+    {BTIF_HL_DATA_TYPE_PEAK_FLOW    ,       2030,   224},
+    {BTIF_HL_DATA_TYPE_ACTIVITY_HUB,        5120,   224},
+    {BTIF_HL_DATA_TYPE_AMM,                 1024,   64}
+};
+
+#define BTIF_HL_DATA_TABLE_SIZE  (sizeof(data_type_table) / sizeof(btif_hl_data_type_cfg_t))
+#define BTIF_HL_DEFAULT_SRC_TX_APDU_SIZE   10240 /* use this size if the data type is not
+                                                    defined in the table; for future proof */
+#define BTIF_HL_DEFAULT_SRC_RX_APDU_SIZE   512  /* use this size if the data type is not
+                                                   defined in the table; for future proof */
+
+#define BTIF_HL_ECHO_MAX_TX_RX_APDU_SIZE 1024
+
+/************************************************************************************
+**  Static utility functions
+************************************************************************************/
+
+#define BTIF_IF_GET_NAME 16
+void btif_hl_display_calling_process_name(void)
+{
+    char name[16];
+    prctl(BTIF_IF_GET_NAME, name, 0, 0, 0);
+    BTIF_TRACE_DEBUG("Process name (%s)", name);
+}
+#define BTIF_TIMEOUT_CCH_NO_DCH_MS   (30 * 1000)
+
+/*******************************************************************************
+**
+** Function      btif_hl_if_channel_setup_pending
+**
+** Description   check whether channel id is in setup pending state or not
+**
+** Returns      BOOLEAN
+**
+*******************************************************************************/
+BOOLEAN btif_hl_if_channel_setup_pending(int channel_id, UINT8 *p_app_idx, UINT8 *p_mcl_idx)
+{
+    btif_hl_app_cb_t    *p_acb;
+    btif_hl_mcl_cb_t    *p_mcb;
+    UINT8 i, j;
+    BOOLEAN found=FALSE;
+
+    *p_app_idx = 0;
+    *p_mcl_idx = 0;
+    for (i=0; i < BTA_HL_NUM_APPS ; i ++)
+    {
+        p_acb  =BTIF_HL_GET_APP_CB_PTR(i);
+        if (p_acb->in_use)
+        {
+            for (j=0; j< BTA_HL_NUM_MCLS; j++)
+            {
+                p_mcb = BTIF_HL_GET_MCL_CB_PTR(i, j);
+                if (p_mcb->in_use &&
+                    p_mcb->is_connected && p_mcb->pcb.channel_id == channel_id )
+                {
+                    found = TRUE;
+                    *p_app_idx = i;
+                    *p_mcl_idx = j;
+                    break;
+                }
+            }
+        }
+        if (found)
+            break;
+    }
+    BTIF_TRACE_DEBUG("%s found=%d channel_id=0x%08x",
+                      __FUNCTION__, found, channel_id, *p_app_idx, *p_mcl_idx);
+    return found;
+
+}
+/*******************************************************************************
+**
+** Function      btif_hl_num_dchs_in_use
+**
+** Description find number of DCHs in use
+**
+** Returns      UINT8
+*******************************************************************************/
+UINT8 btif_hl_num_dchs_in_use(UINT8 mcl_handle){
+
+    btif_hl_app_cb_t    * p_acb;
+    btif_hl_mcl_cb_t    *p_mcb;
+    UINT8               i,j,x;
+    UINT8               cnt=0;
+
+    for (i=0; i<BTA_HL_NUM_APPS; i++)
+    {
+        BTIF_TRACE_DEBUG("btif_hl_num_dchs:i = %d",i);
+        p_acb =BTIF_HL_GET_APP_CB_PTR(i);
+        if (p_acb && p_acb->in_use)
+        {
+            for (j=0; j < BTA_HL_NUM_MCLS ; j++)
+            {
+                if(p_acb->mcb[j].in_use)
+                    BTIF_TRACE_DEBUG("btif_hl_num_dchs:mcb in use j=%d, mcl_handle=%d,mcb handle=%d",
+                                        j,mcl_handle, p_acb->mcb[j].mcl_handle);
+                if (p_acb->mcb[j].in_use &&
+                    (p_acb->mcb[j].mcl_handle == mcl_handle))
+                {
+                    p_mcb = &p_acb->mcb[j];
+                    BTIF_TRACE_DEBUG("btif_hl_num_dchs: mcl handle found j =%d",j);
+                    for (x=0; x < BTA_HL_NUM_MDLS_PER_MCL ; x ++)
+                    {
+                        if (p_mcb->mdl[x].in_use)
+                        {
+                            BTIF_TRACE_DEBUG("btif_hl_num_dchs_in_use:found x =%d",x);
+                            cnt++;
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    BTIF_TRACE_DEBUG("%s dch in use count=%d", __FUNCTION__, cnt);
+    return cnt;
+}
+/*******************************************************************************
+**
+** Function      btif_hl_timer_timeout
+**
+** Description   Process timer timeout
+**
+** Returns      void
+*******************************************************************************/
+void btif_hl_timer_timeout(void *data)
+{
+    btif_hl_mcl_cb_t    *p_mcb = (btif_hl_mcl_cb_t *)data;
+
+    BTIF_TRACE_DEBUG("%s", __func__);
+    if (p_mcb->is_connected) {
+        BTIF_TRACE_DEBUG("Idle timeout Close CCH mcl_handle=%d",
+                         p_mcb->mcl_handle);
+        BTA_HlCchClose(p_mcb->mcl_handle);
+    } else {
+        BTIF_TRACE_DEBUG("CCH idle timeout But CCH not connected");
+    }
+}
+
+/*******************************************************************************
+**
+** Function      btif_hl_stop_cch_timer
+**
+** Description  stop CCH timer
+**
+** Returns      void
+*******************************************************************************/
+void btif_hl_stop_cch_timer(UINT8 app_idx, UINT8 mcl_idx)
+{
+    btif_hl_mcl_cb_t    *p_mcb = BTIF_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+
+    BTIF_TRACE_DEBUG("%s app_idx=%d, mcl_idx=%d", __func__, app_idx, mcl_idx);
+    alarm_cancel(p_mcb->cch_timer);
+}
+
+/*******************************************************************************
+**
+** Function      btif_hl_start_cch_timer
+**
+** Description  start CCH timer
+**
+** Returns      void
+*******************************************************************************/
+void btif_hl_start_cch_timer(UINT8 app_idx, UINT8 mcl_idx)
+{
+    btif_hl_mcl_cb_t    *p_mcb = BTIF_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+    BTIF_TRACE_DEBUG("%s app_idx=%d, mcl_idx=%d", __func__, app_idx, mcl_idx);
+
+    alarm_free(p_mcb->cch_timer);
+    p_mcb->cch_timer = alarm_new("btif_hl.mcl_cch_timer");
+    alarm_set_on_queue(p_mcb->cch_timer, BTIF_TIMEOUT_CCH_NO_DCH_MS,
+                       btif_hl_timer_timeout, p_mcb,
+                       btu_general_alarm_queue);
+}
+
+/*******************************************************************************
+**
+** Function      btif_hl_find_mdl_idx
+**
+** Description  Find the MDL index using MDL ID
+**
+** Returns      BOOLEAN
+**
+*******************************************************************************/
+static BOOLEAN btif_hl_find_mdl_idx(UINT8 app_idx, UINT8 mcl_idx, UINT16 mdl_id,
+                                    UINT8 *p_mdl_idx)
+{
+    btif_hl_mcl_cb_t      *p_mcb  = BTIF_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+    BOOLEAN found=FALSE;
+    UINT8 i;
+
+    for (i=0; i < BTA_HL_NUM_MDLS_PER_MCL ; i ++)
+    {
+        if (p_mcb->mdl[i].in_use  &&
+            (mdl_id !=0) &&
+            (p_mcb->mdl[i].mdl_id== mdl_id))
+        {
+            found = TRUE;
+            *p_mdl_idx = i;
+            break;
+        }
+    }
+
+    BTIF_TRACE_DEBUG("%s found=%d mdl_id=%d mdl_idx=%d ",
+                      __FUNCTION__,found, mdl_id, i);
+
+    return found;
+}
+
+/*******************************************************************************
+**
+** Function      btif_hl_is_the_first_reliable_existed
+**
+** Description  This function checks whether the first reliable DCH channel
+**              has been setup on the MCL or not
+**
+** Returns      BOOLEAN - TRUE exist
+**                        FALSE does not exist
+**
+*******************************************************************************/
+BOOLEAN btif_hl_is_the_first_reliable_existed(UINT8 app_idx, UINT8 mcl_idx )
+{
+    btif_hl_mcl_cb_t          *p_mcb  =BTIF_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+    BOOLEAN is_existed =FALSE;
+    UINT8 i ;
+
+    for (i=0; i< BTA_HL_NUM_MDLS_PER_MCL; i++)
+    {
+        if (p_mcb->mdl[i].in_use && p_mcb->mdl[i].is_the_first_reliable)
+        {
+            is_existed = TRUE;
+            break;
+        }
+    }
+
+    BTIF_TRACE_DEBUG("bta_hl_is_the_first_reliable_existed is_existed=%d  ",is_existed );
+    return is_existed;
+}
+/*******************************************************************************
+**
+** Function      btif_hl_clean_delete_mdl
+**
+** Description   Cleanup the delete mdl control block
+**
+** Returns     Nothing
+**
+*******************************************************************************/
+static void btif_hl_clean_delete_mdl(btif_hl_delete_mdl_t *p_cb)
+{
+    BTIF_TRACE_DEBUG("%s", __FUNCTION__ );
+    memset(p_cb, 0 , sizeof(btif_hl_delete_mdl_t));
+}
+
+/*******************************************************************************
+**
+** Function      btif_hl_clean_pcb
+**
+** Description   Cleanup the pending chan control block
+**
+** Returns     Nothing
+**
+*******************************************************************************/
+static void btif_hl_clean_pcb(btif_hl_pending_chan_cb_t *p_pcb)
+{
+    BTIF_TRACE_DEBUG("%s", __FUNCTION__ );
+    memset(p_pcb, 0 , sizeof(btif_hl_pending_chan_cb_t));
+}
+
+/*******************************************************************************
+**
+** Function      btif_hl_clean_mdl_cb
+**
+** Description   Cleanup the MDL control block
+**
+** Returns     Nothing
+**
+*******************************************************************************/
+static void btif_hl_clean_mdl_cb(btif_hl_mdl_cb_t *p_dcb)
+{
+    BTIF_TRACE_DEBUG("%s", __FUNCTION__ );
+    osi_free_and_reset((void **)&p_dcb->p_rx_pkt);
+    osi_free_and_reset((void **)&p_dcb->p_tx_pkt);
+    memset(p_dcb, 0 , sizeof(btif_hl_mdl_cb_t));
+}
+
+/*******************************************************************************
+**
+** Function      btif_hl_reset_mcb
+**
+** Description   Reset MCL control block
+**
+** Returns      BOOLEAN
+**
+*******************************************************************************/
+static void btif_hl_clean_mcl_cb(UINT8 app_idx, UINT8 mcl_idx)
+{
+    btif_hl_mcl_cb_t     *p_mcb;
+    BTIF_TRACE_DEBUG("%s app_idx=%d, mcl_idx=%d", __FUNCTION__,app_idx, mcl_idx);
+    p_mcb = BTIF_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+    alarm_free(p_mcb->cch_timer);
+    memset(p_mcb, 0, sizeof(btif_hl_mcl_cb_t));
+}
+
+/*******************************************************************************
+**
+** Function      btif_hl_find_sdp_idx_using_mdep_filter
+**
+** Description  This function finds the SDP record index using MDEP filter parameters
+**
+** Returns      BOOLEAN
+**
+*******************************************************************************/
+static void btif_hl_reset_mdep_filter(UINT8 app_idx)
+{
+    btif_hl_app_cb_t          *p_acb  =BTIF_HL_GET_APP_CB_PTR(app_idx);
+    p_acb->filter.num_elems = 0;
+}
+
+/*******************************************************************************
+**
+** Function      btif_hl_find_sdp_idx_using_mdep_filter
+**
+** Description  This function finds the SDP record index using MDEP filter parameters
+**
+** Returns      BOOLEAN
+**
+*******************************************************************************/
+static BOOLEAN btif_hl_find_sdp_idx_using_mdep_filter(UINT8 app_idx, UINT8 mcl_idx, UINT8 *p_sdp_idx)
+{
+    btif_hl_app_cb_t          *p_acb  =BTIF_HL_GET_APP_CB_PTR(app_idx);
+    btif_hl_mcl_cb_t          *p_mcb  =BTIF_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+    UINT8                   i, j, num_recs,num_elems, num_mdeps, mdep_idx;
+    tBTA_HL_MDEP_ROLE       peer_mdep_role;
+    UINT16                  data_type;
+    tBTA_HL_SDP_MDEP_CFG    *p_mdep;
+    BOOLEAN                 found = FALSE;
+    BOOLEAN                 elem_found;
+
+    BTIF_TRACE_DEBUG("btif_hl_find_sdp_idx_using_mdep_filter");
+    num_recs = p_mcb->sdp.num_recs;
+    num_elems = p_acb->filter.num_elems;
+    if (!num_elems)
+    {
+        BTIF_TRACE_DEBUG("btif_hl_find_sdp_idx_using_mdep_filter num_elem=0");
+        *p_sdp_idx = 0;
+        found = TRUE;
+        return found;
+    }
+
+    for (i=0; i<num_recs; i++)
+    {
+        num_mdeps = p_mcb->sdp.sdp_rec[i].num_mdeps;
+        for (j=0; j<num_elems; j++ )
+        {
+            data_type = p_acb->filter.elem[j].data_type;
+            peer_mdep_role = p_acb->filter.elem[j].peer_mdep_role;
+            elem_found = FALSE;
+            mdep_idx=0;
+            while (!elem_found && mdep_idx < num_mdeps )
+            {
+                p_mdep = &(p_mcb->sdp.sdp_rec[i].mdep_cfg[mdep_idx]);
+                if ( (p_mdep->data_type == data_type) &&
+                     (p_mdep->mdep_role == peer_mdep_role) )
+                {
+                    elem_found = TRUE;
+                }
+                else
+                {
+                    mdep_idx++;
+                }
+            }
+
+            if (!elem_found)
+            {
+                found = FALSE;
+                break;
+            }
+            else
+            {
+                found = TRUE;
+            }
+        }
+
+        if (found)
+        {
+            BTIF_TRACE_DEBUG("btif_hl_find_sdp_idx_using_mdep_filter found idx=%d",i);
+            *p_sdp_idx = i;
+            break;
+        }
+    }
+
+    BTIF_TRACE_DEBUG("%s found=%d sdp_idx=%d",__FUNCTION__ , found, *p_sdp_idx);
+
+    btif_hl_reset_mdep_filter(app_idx);
+
+    return found;
+}
+/*******************************************************************************
+**
+** Function      btif_hl_is_reconnect_possible
+**
+** Description  check reconnect is possible or not
+**
+** Returns      BOOLEAN
+**
+*******************************************************************************/
+BOOLEAN btif_hl_is_reconnect_possible(UINT8 app_idx, UINT8 mcl_idx,  int mdep_cfg_idx,
+                                      tBTA_HL_DCH_OPEN_PARAM *p_dch_open_api, tBTA_HL_MDL_ID *p_mdl_id)
+{
+    btif_hl_app_cb_t     *p_acb = BTIF_HL_GET_APP_CB_PTR(app_idx);
+    btif_hl_mcl_cb_t     *p_mcb = BTIF_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+    tBTA_HL_DCH_CFG      local_cfg = p_dch_open_api->local_cfg;
+    tBTA_HL_DCH_MODE     dch_mode = BTA_HL_DCH_MODE_RELIABLE;
+    BOOLEAN              use_mdl_dch_mode=FALSE;
+    btif_hl_mdl_cfg_t    *p_mdl;
+    btif_hl_mdl_cfg_t    *p_mdl1;
+    UINT8                i, j;
+    BOOLEAN              is_reconnect_ok=FALSE;
+    BOOLEAN              stream_mode_avail=FALSE;
+    UINT16               data_type = p_acb->sup_feature.mdep[mdep_cfg_idx].mdep_cfg.data_cfg[0].data_type;
+    tBTA_HL_MDEP_ID      peer_mdep_id = p_dch_open_api->peer_mdep_id;
+    UINT8                mdl_idx;
+
+    BTIF_TRACE_DEBUG("%s app_idx=%d mcl_idx=%d mdep_cfg_idx=%d",
+                      __FUNCTION__, app_idx, mcl_idx, mdep_cfg_idx  );
+    switch (local_cfg)
+    {
+        case BTA_HL_DCH_CFG_NO_PREF:
+            if (!btif_hl_is_the_first_reliable_existed(app_idx, mcl_idx))
+            {
+                dch_mode = BTA_HL_DCH_MODE_RELIABLE;
+            }
+            else
+            {
+                use_mdl_dch_mode = TRUE;
+            }
+            break;
+        case BTA_HL_DCH_CFG_RELIABLE:
+            dch_mode = BTA_HL_DCH_MODE_RELIABLE;
+            break;
+        case BTA_HL_DCH_CFG_STREAMING:
+            dch_mode = BTA_HL_DCH_MODE_STREAMING;
+            break;
+        default:
+            BTIF_TRACE_ERROR("Invalid local_cfg=%d",local_cfg );
+            return is_reconnect_ok;
+            break;
+
+    }
+
+    BTIF_TRACE_DEBUG("local_cfg=%d use_mdl_dch_mode=%d dch_mode=%d ",
+                      local_cfg, use_mdl_dch_mode, dch_mode  );
+
+    for (i=0, p_mdl=&p_acb->mdl_cfg[0] ; i< BTA_HL_NUM_MDL_CFGS; i++, p_mdl++ )
+    {
+        if (p_mdl->base.active &&
+            p_mdl->extra.data_type ==data_type &&
+            (p_mdl->extra.peer_mdep_id != BTA_HL_INVALID_MDEP_ID && p_mdl->extra.peer_mdep_id == peer_mdep_id) &&
+            memcpy(p_mdl->base.peer_bd_addr, p_mcb->bd_addr,sizeof(BD_ADDR) ) &&
+            p_mdl->base.mdl_id &&
+            !btif_hl_find_mdl_idx(app_idx, mcl_idx,p_mdl->base.mdl_id, &mdl_idx))
+        {
+            BTIF_TRACE_DEBUG("i=%d Matched active=%d   mdl_id =%d, mdl_dch_mode=%d",
+                              i, p_mdl->base.active, p_mdl->base.mdl_id,p_mdl->base.dch_mode);
+            if (!use_mdl_dch_mode)
+            {
+                if (p_mdl->base.dch_mode == dch_mode)
+                {
+                    is_reconnect_ok = TRUE;
+                    *p_mdl_id = p_mdl->base.mdl_id;
+                    BTIF_TRACE_DEBUG("reconnect is possible dch_mode=%d mdl_id=%d", dch_mode, p_mdl->base.mdl_id );
+                    break;
+                }
+            }
+            else
+            {
+                is_reconnect_ok = TRUE;
+                for (j=i, p_mdl1=&p_acb->mdl_cfg[i]; j< BTA_HL_NUM_MDL_CFGS; j++, p_mdl1++)
+                {
+                    if (p_mdl1->base.active &&
+                        p_mdl1->extra.data_type == data_type &&
+                        (p_mdl1->extra.peer_mdep_id != BTA_HL_INVALID_MDEP_ID && p_mdl1->extra.peer_mdep_id == peer_mdep_id) &&
+                        memcpy(p_mdl1->base.peer_bd_addr, p_mcb->bd_addr,sizeof(BD_ADDR)) &&
+                        p_mdl1->base.dch_mode == BTA_HL_DCH_MODE_STREAMING)
+                    {
+                        stream_mode_avail = TRUE;
+                        BTIF_TRACE_DEBUG("found streaming mode mdl index=%d", j);
+                        break;
+                    }
+                }
+
+                if (stream_mode_avail)
+                {
+                    dch_mode = BTA_HL_DCH_MODE_STREAMING;
+                    *p_mdl_id = p_mdl1->base.mdl_id;
+                    BTIF_TRACE_DEBUG("reconnect is ok index=%d dch_mode=streaming  mdl_id=%d", j, *p_mdl_id);
+                    break;
+                }
+                else
+                {
+                    dch_mode= p_mdl->base.dch_mode;
+                    *p_mdl_id = p_mdl->base.mdl_id;
+                    BTIF_TRACE_DEBUG("reconnect is ok index=%d  dch_mode=%d mdl_id=%d", i,  p_mdl->base.dch_mode, *p_mdl_id);
+                    break;
+
+                }
+            }
+
+        }
+
+    }
+
+    BTIF_TRACE_DEBUG("is_reconnect_ok  dch_mode=%d mdl_id=%d",is_reconnect_ok, dch_mode, *p_mdl_id);
+    return is_reconnect_ok;
+}
+
+/*******************************************************************************
+**
+** Function      btif_hl_dch_open
+**
+** Description   Process DCH open request using the DCH Open API parameters
+**
+** Returns      BOOLEAN
+**
+*******************************************************************************/
+BOOLEAN btif_hl_dch_open(UINT8 app_id, BD_ADDR bd_addr,
+                         tBTA_HL_DCH_OPEN_PARAM *p_dch_open_api,
+                         int mdep_cfg_idx,
+                         btif_hl_pend_dch_op_t op, int *channel_id){
+    btif_hl_app_cb_t            *p_acb;
+    btif_hl_mcl_cb_t            *p_mcb;
+    btif_hl_pending_chan_cb_t   *p_pcb;
+    UINT8                       app_idx, mcl_idx;
+    BOOLEAN                     status = FALSE;
+    tBTA_HL_MDL_ID              mdl_id;
+    tBTA_HL_DCH_RECONNECT_PARAM reconnect_param;
+
+    BTIF_TRACE_DEBUG("%s app_id=%d ",
+                      __FUNCTION__, app_id );
+    BTIF_TRACE_DEBUG("DB [%02x:%02x:%02x:%02x:%02x:%02x]",
+                      bd_addr[0],  bd_addr[1],bd_addr[2],  bd_addr[3], bd_addr[4],  bd_addr[5]);
+
+    if (btif_hl_find_app_idx(app_id, &app_idx))
+    {
+        if (btif_hl_find_mcl_idx(app_idx, bd_addr , &mcl_idx))
+        {
+            p_mcb = BTIF_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+
+            p_pcb = BTIF_HL_GET_PCB_PTR(app_idx, mcl_idx);
+            if (!p_pcb->in_use)
+            {
+                p_mcb->req_ctrl_psm = p_dch_open_api->ctrl_psm;
+
+                p_pcb->in_use = TRUE;
+                *channel_id       =
+                p_pcb->channel_id =  (int) btif_hl_get_next_channel_id(app_id);
+                p_pcb->cb_state = BTIF_HL_CHAN_CB_STATE_CONNECTING_PENDING;
+                p_pcb->mdep_cfg_idx = mdep_cfg_idx;
+                memcpy(p_pcb->bd_addr, bd_addr, sizeof(BD_ADDR));
+                p_pcb->op = op;
+
+                if (p_mcb->sdp.num_recs)
+                {
+                    if (p_mcb->valid_sdp_idx)
+                    {
+                        p_dch_open_api->ctrl_psm  = p_mcb->ctrl_psm;
+                    }
+
+                    if (!btif_hl_is_reconnect_possible(app_idx, mcl_idx, mdep_cfg_idx, p_dch_open_api, &mdl_id ))
+                    {
+
+                        BTIF_TRACE_DEBUG("Issue DCH open" );
+                        BTA_HlDchOpen(p_mcb->mcl_handle, p_dch_open_api);
+                    }
+                    else
+                    {
+                        reconnect_param.ctrl_psm = p_mcb->ctrl_psm;
+                        reconnect_param.mdl_id = mdl_id;;
+                        BTIF_TRACE_DEBUG("Issue Reconnect ctrl_psm=0x%x mdl_id=0x%x",reconnect_param.ctrl_psm, reconnect_param.mdl_id   );
+                        BTA_HlDchReconnect(p_mcb->mcl_handle, &reconnect_param);
+                    }
+
+                    status = TRUE;
+                }
+                else
+                {
+                    p_acb = BTIF_HL_GET_APP_CB_PTR(app_idx);
+                    p_mcb->cch_oper = BTIF_HL_CCH_OP_DCH_OPEN;
+                    BTA_HlSdpQuery(app_id,p_acb->app_handle, bd_addr);
+                    status = TRUE;
+                }
+            }
+        }
+    }
+
+    BTIF_TRACE_DEBUG("status=%d ", status);
+    return status;
+}
+/*******************************************************************************
+**
+** Function      btif_hl_copy_bda
+**
+** Description  copy bt_bdaddr_t to BD_ADDR format
+**
+** Returns      void
+**
+*******************************************************************************/
+void btif_hl_copy_bda(bt_bdaddr_t *bd_addr, BD_ADDR  bda){
+    UINT8 i;
+    for (i=0; i<6; i++)
+    {
+        bd_addr->address[i] = bda[i] ;
+    }
+}
+/*******************************************************************************
+**
+** Function      btif_hl_copy_bda
+**
+** Description  display bt_bdaddr_t
+**
+** Returns      BOOLEAN
+**
+*******************************************************************************/
+void btif_hl_display_bt_bda(bt_bdaddr_t *bd_addr){
+    BTIF_TRACE_DEBUG("DB [%02x:%02x:%02x:%02x:%02x:%02x]",
+                      bd_addr->address[0],   bd_addr->address[1], bd_addr->address[2],
+                      bd_addr->address[3],  bd_addr->address[4],   bd_addr->address[5]);
+}
+
+/*******************************************************************************
+**
+** Function         btif_hl_dch_abort
+**
+** Description      Process DCH abort request
+**
+** Returns          Nothing
+**
+*******************************************************************************/
+void  btif_hl_dch_abort(UINT8 app_idx, UINT8 mcl_idx){
+    btif_hl_mcl_cb_t      *p_mcb;
+
+    BTIF_TRACE_DEBUG("%s app_idx=%d mcl_idx=%d",__FUNCTION__, app_idx, mcl_idx );
+    p_mcb = BTIF_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+    if (p_mcb->is_connected)
+    {
+        BTA_HlDchAbort(p_mcb->mcl_handle);
+    }
+    else
+    {
+        p_mcb->pcb.abort_pending = TRUE;
+    }
+
+}
+/*******************************************************************************
+**
+** Function      btif_hl_cch_open
+**
+** Description   Process CCH open request
+**
+** Returns     Nothing
+**
+*******************************************************************************/
+BOOLEAN btif_hl_cch_open(UINT8 app_id, BD_ADDR bd_addr, UINT16 ctrl_psm,
+                         int mdep_cfg_idx,
+                         btif_hl_pend_dch_op_t op, int *channel_id){
+
+    btif_hl_app_cb_t            *p_acb;
+    btif_hl_mcl_cb_t            *p_mcb;
+    btif_hl_pending_chan_cb_t   *p_pcb;
+    UINT8                       app_idx, mcl_idx;
+    BOOLEAN                     status = TRUE;
+
+    BTIF_TRACE_DEBUG("%s app_id=%d ctrl_psm=%d mdep_cfg_idx=%d op=%d",
+                      __FUNCTION__, app_id, ctrl_psm, mdep_cfg_idx, op);
+    BTIF_TRACE_DEBUG("DB [%02x:%02x:%02x:%02x:%02x:%02x]",
+                      bd_addr[0],  bd_addr[1],bd_addr[2],  bd_addr[3], bd_addr[4],  bd_addr[5]);
+
+    if (btif_hl_find_app_idx(app_id, &app_idx))
+    {
+        p_acb = BTIF_HL_GET_APP_CB_PTR(app_idx);
+
+        if (!btif_hl_find_mcl_idx(app_idx, bd_addr, &mcl_idx))
+        {
+            if (btif_hl_find_avail_mcl_idx(app_idx, &mcl_idx))
+            {
+                p_mcb = BTIF_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+                alarm_free(p_mcb->cch_timer);
+                memset(p_mcb, 0, sizeof(btif_hl_mcl_cb_t));
+                p_mcb->in_use = TRUE;
+                bdcpy(p_mcb->bd_addr, bd_addr);
+
+                if (!ctrl_psm)
+                {
+                    p_mcb->cch_oper = BTIF_HL_CCH_OP_MDEP_FILTERING;
+                }
+                else
+                {
+                    p_mcb->cch_oper        = BTIF_HL_CCH_OP_MATCHED_CTRL_PSM;
+                    p_mcb->req_ctrl_psm    = ctrl_psm;
+                }
+
+                p_pcb = BTIF_HL_GET_PCB_PTR(app_idx, mcl_idx);
+                p_pcb->in_use = TRUE;
+                p_pcb->mdep_cfg_idx = mdep_cfg_idx;
+                memcpy(p_pcb->bd_addr, bd_addr, sizeof(BD_ADDR));
+                p_pcb->op = op;
+
+                switch (op)
+                {
+                    case BTIF_HL_PEND_DCH_OP_OPEN:
+                        *channel_id       =
+                        p_pcb->channel_id =  (int) btif_hl_get_next_channel_id(app_id);
+                        p_pcb->cb_state = BTIF_HL_CHAN_CB_STATE_CONNECTING_PENDING;
+                        break;
+                    case BTIF_HL_PEND_DCH_OP_DELETE_MDL:
+                        p_pcb->channel_id =  p_acb->delete_mdl.channel_id;
+                        p_pcb->cb_state = BTIF_HL_CHAN_CB_STATE_DESTROYED_PENDING;
+                        break;
+                    default:
+                        break;
+                }
+                BTA_HlSdpQuery(app_id,p_acb->app_handle, bd_addr);
+            }
+            else
+            {
+                status = FALSE;
+                BTIF_TRACE_ERROR("Open CCH request discarded- No mcl cb");
+            }
+        }
+        else
+        {
+            status = FALSE;
+            BTIF_TRACE_ERROR("Open CCH request discarded- already in USE");
+        }
+    }
+    else
+    {
+        status = FALSE;
+        BTIF_TRACE_ERROR("Invalid app_id=%d", app_id);
+    }
+
+    if (channel_id)
+    {
+        BTIF_TRACE_DEBUG("status=%d channel_id=0x%08x", status, *channel_id);
+    }
+    else
+    {
+        BTIF_TRACE_DEBUG("status=%d ", status);
+    }
+    return status;
+}
+
+/*******************************************************************************
+**
+** Function      btif_hl_find_mdl_idx_using_handle
+**
+** Description  Find the MDL index using channel id
+**
+** Returns      BOOLEAN
+**
+*******************************************************************************/
+BOOLEAN btif_hl_find_mdl_cfg_idx_using_channel_id(int channel_id,
+                                                  UINT8 *p_app_idx,
+                                                  UINT8 *p_mdl_cfg_idx){
+    btif_hl_app_cb_t      *p_acb;
+    btif_hl_mdl_cfg_t     *p_mdl;
+    BOOLEAN found=FALSE;
+    UINT8 i,j;
+    int mdl_cfg_channel_id;
+
+    *p_app_idx = 0;
+    *p_mdl_cfg_idx =0;
+    for (i=0; i < BTA_HL_NUM_APPS ; i ++)
+    {
+        p_acb =BTIF_HL_GET_APP_CB_PTR(i);
+        for (j=0; j< BTA_HL_NUM_MDL_CFGS; j++)
+        {
+            p_mdl =BTIF_HL_GET_MDL_CFG_PTR(i,j);
+            mdl_cfg_channel_id = *(BTIF_HL_GET_MDL_CFG_CHANNEL_ID_PTR(i,j));
+            if (p_acb->in_use &&
+                p_mdl->base.active &&
+                (mdl_cfg_channel_id == channel_id))
+            {
+                found = TRUE;
+                *p_app_idx = i;
+                *p_mdl_cfg_idx =j;
+                break;
+            }
+        }
+    }
+
+    BTIF_TRACE_EVENT("%s found=%d channel_id=0x%08x, app_idx=%d mdl_cfg_idx=%d  ",
+                      __FUNCTION__,found,channel_id, i,j );
+    return found;
+}
+/*******************************************************************************
+**
+** Function      btif_hl_find_mdl_idx_using_handle
+**
+** Description  Find the MDL index using channel id
+**
+** Returns      BOOLEAN
+**
+*******************************************************************************/
+BOOLEAN btif_hl_find_mdl_idx_using_channel_id(int channel_id,
+                                              UINT8 *p_app_idx,UINT8 *p_mcl_idx,
+                                              UINT8 *p_mdl_idx){
+    btif_hl_app_cb_t      *p_acb;
+    btif_hl_mcl_cb_t      *p_mcb;
+    btif_hl_mdl_cb_t      *p_dcb;
+    BOOLEAN found=FALSE;
+    UINT8 i,j,k;
+
+    for (i=0; i < BTA_HL_NUM_APPS ; i ++)
+    {
+        p_acb =BTIF_HL_GET_APP_CB_PTR(i);
+        for (j=0; j< BTA_HL_NUM_MCLS; j++)
+        {
+            p_mcb =BTIF_HL_GET_MCL_CB_PTR(i,j);
+            for (k=0; k< BTA_HL_NUM_MDLS_PER_MCL; k++)
+            {
+                p_dcb =BTIF_HL_GET_MDL_CB_PTR(i,j,k);
+                if (p_acb->in_use &&
+                    p_mcb->in_use &&
+                    p_dcb->in_use &&
+                    (p_dcb->channel_id == channel_id))
+                {
+                    found = TRUE;
+                    *p_app_idx = i;
+                    *p_mcl_idx =j;
+                    *p_mdl_idx = k;
+                    break;
+                }
+            }
+        }
+    }
+    BTIF_TRACE_DEBUG("%s found=%d app_idx=%d mcl_idx=%d mdl_idx=%d  ",
+                      __FUNCTION__,found,i,j,k );
+    return found;
+}
+
+/*******************************************************************************
+**
+** Function      btif_hl_find_channel_id_using_mdl_id
+**
+** Description  Find channel id using mdl_id'
+**
+** Returns      BOOLEAN
+*********************************************************************************/
+BOOLEAN btif_hl_find_channel_id_using_mdl_id(UINT8 app_idx, tBTA_HL_MDL_ID mdl_id,
+                                            int *p_channel_id){
+    btif_hl_app_cb_t      *p_acb;
+    btif_hl_mdl_cfg_t     *p_mdl;
+    BOOLEAN found=FALSE;
+    UINT8 j=0;
+    int mdl_cfg_channel_id;
+    p_acb =BTIF_HL_GET_APP_CB_PTR(app_idx);
+    if (p_acb && p_acb->in_use)
+        {
+            for (j=0; j< BTA_HL_NUM_MDL_CFGS; j++)
+                {
+                    p_mdl =BTIF_HL_GET_MDL_CFG_PTR(app_idx,j);
+                    mdl_cfg_channel_id = *(BTIF_HL_GET_MDL_CFG_CHANNEL_ID_PTR(app_idx,j));
+                    if ( p_mdl->base.active && (p_mdl->base.mdl_id == mdl_id))
+                    {
+                            found = TRUE;
+                            *p_channel_id = mdl_cfg_channel_id;
+                            break;
+                    }
+                }
+        }
+    BTIF_TRACE_EVENT("%s found=%d channel_id=0x%08x, mdl_id=0x%x app_idx=%d mdl_cfg_idx=%d  ",
+                    __FUNCTION__,found,*p_channel_id,mdl_id, app_idx,j );
+    return found;
+}
+
+/*******************************************************************************
+**
+** Function      btif_hl_find_mdl_idx_using_handle
+**
+** Description  Find the MDL index using handle
+**
+** Returns      BOOLEAN
+**
+*******************************************************************************/
+BOOLEAN btif_hl_find_mdl_idx_using_handle(tBTA_HL_MDL_HANDLE mdl_handle,
+                                          UINT8 *p_app_idx,UINT8 *p_mcl_idx,
+                                          UINT8 *p_mdl_idx){
+    btif_hl_app_cb_t      *p_acb;
+    btif_hl_mcl_cb_t      *p_mcb;
+    btif_hl_mdl_cb_t      *p_dcb;
+    BOOLEAN found=FALSE;
+    UINT8 i,j,k;
+
+    *p_app_idx = 0;
+    *p_mcl_idx =0;
+    *p_mdl_idx = 0;
+    for (i=0; i < BTA_HL_NUM_APPS ; i ++)
+    {
+        p_acb =BTIF_HL_GET_APP_CB_PTR(i);
+        for (j=0; j< BTA_HL_NUM_MCLS; j++)
+        {
+            p_mcb =BTIF_HL_GET_MCL_CB_PTR(i,j);
+            for (k=0; k< BTA_HL_NUM_MDLS_PER_MCL; k++)
+            {
+                p_dcb =BTIF_HL_GET_MDL_CB_PTR(i,j,k);
+                if (p_acb->in_use &&
+                    p_mcb->in_use &&
+                    p_dcb->in_use &&
+                    (p_dcb->mdl_handle == mdl_handle))
+                {
+                    found = TRUE;
+                    *p_app_idx = i;
+                    *p_mcl_idx =j;
+                    *p_mdl_idx = k;
+                    break;
+                }
+            }
+        }
+    }
+
+    BTIF_TRACE_EVENT("%s found=%d app_idx=%d mcl_idx=%d mdl_idx=%d  ",
+                      __FUNCTION__,found,i,j,k );
+    return found;
+}
+/*******************************************************************************
+**
+** Function        btif_hl_find_peer_mdep_id
+**
+** Description      Find the peer MDEP ID from the received SPD records
+**
+** Returns          BOOLEAN
+**
+*******************************************************************************/
+static BOOLEAN btif_hl_find_peer_mdep_id(UINT8 app_id, BD_ADDR bd_addr,
+                                         tBTA_HL_MDEP_ROLE local_mdep_role,
+                                         UINT16 data_type,
+                                         tBTA_HL_MDEP_ID *p_peer_mdep_id){
+    UINT8               app_idx, mcl_idx;
+    btif_hl_mcl_cb_t     *p_mcb;
+    tBTA_HL_SDP_REC     *p_rec;
+    UINT8               i, num_mdeps;
+    BOOLEAN             found = FALSE;
+    tBTA_HL_MDEP_ROLE   peer_mdep_role;
+
+    BTIF_TRACE_DEBUG("%s app_id=%d local_mdep_role=%d, data_type=%d",
+                      __FUNCTION__, app_id, local_mdep_role, data_type);
+
+    BTIF_TRACE_DEBUG("DB [%02x:%02x:%02x:%02x:%02x:%02x]",
+                      bd_addr[0],  bd_addr[1],
+                      bd_addr[2],  bd_addr[3],
+                      bd_addr[4],  bd_addr[5]);
+
+    BTIF_TRACE_DEBUG("local_mdep_role=%d", local_mdep_role);
+    BTIF_TRACE_DEBUG("data_type=%d", data_type);
+
+    if (local_mdep_role == BTA_HL_MDEP_ROLE_SINK)
+        peer_mdep_role = BTA_HL_MDEP_ROLE_SOURCE;
+    else
+        peer_mdep_role = BTA_HL_MDEP_ROLE_SINK;
+
+    if (btif_hl_find_app_idx(app_id, &app_idx) )
+    {
+        if (btif_hl_find_mcl_idx(app_idx, bd_addr, &mcl_idx))
+        {
+            p_mcb = BTIF_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+
+            BTIF_TRACE_DEBUG("app_idx=%d mcl_idx=%d",app_idx, mcl_idx);
+            BTIF_TRACE_DEBUG("valid_spd_idx=%d sdp_idx=%d",p_mcb->valid_sdp_idx, p_mcb->sdp_idx);
+            if (p_mcb->valid_sdp_idx)
+            {
+                p_rec = &p_mcb->sdp.sdp_rec[p_mcb->sdp_idx];
+                num_mdeps = p_rec->num_mdeps;
+                BTIF_TRACE_DEBUG("num_mdeps=%d", num_mdeps);
+
+                for (i = 0; i < num_mdeps; i++)
+                {
+                    BTIF_TRACE_DEBUG("p_rec->mdep_cfg[%d].mdep_role=%d",i, p_rec->mdep_cfg[i].mdep_role);
+                    BTIF_TRACE_DEBUG("p_rec->mdep_cfg[%d].data_type =%d",i, p_rec->mdep_cfg[i].data_type );
+                    if ((p_rec->mdep_cfg[i].mdep_role == peer_mdep_role) &&
+                        (p_rec->mdep_cfg[i].data_type == data_type))
+                    {
+                        found = TRUE;
+                        *p_peer_mdep_id = p_rec->mdep_cfg[i].mdep_id;
+                        break;
+                    }
+                }
+            }
+        }
+    }
+
+    BTIF_TRACE_DEBUG("found =%d  *p_peer_mdep_id=%d", found,  *p_peer_mdep_id);
+
+    return found;
+}
+
+/*******************************************************************************
+**
+** Function      btif_hl_find_mdep_cfg_idx
+**
+** Description  Find the MDEP configuration index using local MDEP_ID
+**
+** Returns      BOOLEAN
+**
+*******************************************************************************/
+static  BOOLEAN btif_hl_find_mdep_cfg_idx(UINT8 app_idx,  tBTA_HL_MDEP_ID local_mdep_id,
+                                          UINT8 *p_mdep_cfg_idx){
+    btif_hl_app_cb_t      *p_acb =BTIF_HL_GET_APP_CB_PTR(app_idx);
+    tBTA_HL_SUP_FEATURE     *p_sup_feature= &p_acb->sup_feature;
+    BOOLEAN found =FALSE;
+    UINT8 i;
+
+    for (i=0; i< p_sup_feature->num_of_mdeps; i++)
+    {
+        BTIF_TRACE_DEBUG("btif_hl_find_mdep_cfg_idx: mdep_id=%d app_idx = %d",
+                    p_sup_feature->mdep[i].mdep_id,app_idx);
+        if ( p_sup_feature->mdep[i].mdep_id == local_mdep_id)
+        {
+            found = TRUE;
+            *p_mdep_cfg_idx = i;
+            break;
+        }
+    }
+
+    BTIF_TRACE_DEBUG("%s found=%d mdep_idx=%d local_mdep_id=%d app_idx=%d ",
+                      __FUNCTION__, found,i, local_mdep_id,app_idx);
+    return found;
+}
+
+/*******************************************************************************
+**
+** Function      btif_hl_find_mcl_idx
+**
+** Description  Find the MCL index using BD address
+**
+** Returns      BOOLEAN
+**
+*******************************************************************************/
+BOOLEAN btif_hl_find_mcl_idx(UINT8 app_idx, BD_ADDR p_bd_addr, UINT8 *p_mcl_idx){
+    BOOLEAN found=FALSE;
+    UINT8 i;
+    btif_hl_mcl_cb_t  *p_mcb;
+
+    *p_mcl_idx = 0;
+    for (i=0; i < BTA_HL_NUM_MCLS ; i ++)
+    {
+        p_mcb = BTIF_HL_GET_MCL_CB_PTR(app_idx, i);
+        if (p_mcb->in_use &&
+            (!memcmp (p_mcb->bd_addr, p_bd_addr, BD_ADDR_LEN)))
+        {
+            found = TRUE;
+            *p_mcl_idx = i;
+            break;
+        }
+    }
+
+    BTIF_TRACE_DEBUG("%s found=%d idx=%d",__FUNCTION__, found, i);
+    return found;
+}
+/*******************************************************************************
+**
+** Function         btif_hl_init
+**
+** Description      HL initialization function.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btif_hl_init(void){
+    BTIF_TRACE_DEBUG("%s", __FUNCTION__);
+    memset(p_btif_hl_cb, 0, sizeof(btif_hl_cb_t));
+    btif_hl_init_next_app_id();
+    btif_hl_init_next_channel_id();
+}
+/*******************************************************************************
+**
+** Function         btif_hl_disable
+**
+** Description      Disable initialization function.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btif_hl_disable(void){
+    BTIF_TRACE_DEBUG("%s", __FUNCTION__);
+
+    if ((p_btif_hl_cb->state != BTIF_HL_STATE_DISABLING) &&
+        (p_btif_hl_cb->state != BTIF_HL_STATE_DISABLED))
+    {
+        btif_hl_set_state(BTIF_HL_STATE_DISABLING);
+        BTA_HlDisable();
+    }
+}
+/*******************************************************************************
+**
+** Function      btif_hl_is_no_active_app
+**
+** Description  Find whether or not  any APP is still in use
+**
+** Returns      BOOLEAN
+**
+*******************************************************************************/
+static BOOLEAN btif_hl_is_no_active_app(void){
+    BOOLEAN no_active_app = TRUE;
+    UINT8 i;
+
+    for (i=0; i < BTA_HL_NUM_APPS ; i ++)
+    {
+        if (btif_hl_cb.acb[i].in_use)
+        {
+            no_active_app = FALSE;
+            break;
+        }
+    }
+
+    BTIF_TRACE_DEBUG("%s no_active_app=%d  ", __FUNCTION__, no_active_app );
+    return no_active_app;
+}
+
+/*******************************************************************************
+**
+** Function      btif_hl_free_app_idx
+**
+** Description free an application control block
+**
+** Returns      void
+**
+*******************************************************************************/
+static void btif_hl_free_app_idx(UINT8 app_idx){
+
+    if ((app_idx < BTA_HL_NUM_APPS) && btif_hl_cb.acb[app_idx].in_use )
+    {
+        btif_hl_cb.acb[app_idx].in_use = FALSE;
+        for (size_t i = 0; i < BTA_HL_NUM_MCLS; i++)
+            alarm_free(btif_hl_cb.acb[app_idx].mcb[i].cch_timer);
+        memset(&btif_hl_cb.acb[app_idx], 0, sizeof(btif_hl_app_cb_t));
+    }
+}
+/*******************************************************************************
+**
+** Function      btif_hl_set_state
+**
+** Description set HL state
+**
+** Returns      void
+**
+*******************************************************************************/
+static void btif_hl_set_state(btif_hl_state_t state){
+    BTIF_TRACE_DEBUG("btif_hl_set_state:  %d ---> %d ", p_btif_hl_cb->state, state);
+    p_btif_hl_cb->state = state;
+}
+
+/*******************************************************************************
+**
+** Function      btif_hl_set_state
+**
+** Description get HL state
+**
+** Returns      btif_hl_state_t
+**
+*******************************************************************************/
+
+static btif_hl_state_t btif_hl_get_state(void){
+    BTIF_TRACE_DEBUG("btif_hl_get_state:  %d   ", p_btif_hl_cb->state);
+    return p_btif_hl_cb->state;
+}
+
+/*******************************************************************************
+**
+** Function      btif_hl_find_data_type_idx
+**
+** Description  Find the index in the data type table
+**
+** Returns      BOOLEAN
+**
+*******************************************************************************/
+static BOOLEAN  btif_hl_find_data_type_idx(UINT16 data_type, UINT8 *p_idx){
+    BOOLEAN found = FALSE;
+    UINT8 i;
+
+    for (i=0; i< BTIF_HL_DATA_TABLE_SIZE; i++ )
+    {
+        if (data_type_table[i].data_type == data_type)
+        {
+            found = TRUE;
+            *p_idx= i;
+            break;
+        }
+    }
+
+    BTIF_TRACE_DEBUG("%s found=%d, data_type=0x%x idx=%d", __FUNCTION__, found, data_type, i);
+    return found;
+}
+
+/*******************************************************************************
+**
+** Function      btif_hl_get_max_tx_apdu_size
+**
+** Description  Find the maximum TX APDU size for the specified data type and
+**              MDEP role
+**
+** Returns      UINT16
+**
+*******************************************************************************/
+UINT16  btif_hl_get_max_tx_apdu_size(tBTA_HL_MDEP_ROLE mdep_role,
+                                     UINT16 data_type ){
+    UINT8 idx;
+    UINT16 max_tx_apdu_size =0;
+
+    if (btif_hl_find_data_type_idx(data_type, &idx))
+    {
+        if (mdep_role == BTA_HL_MDEP_ROLE_SOURCE)
+        {
+            max_tx_apdu_size = data_type_table[idx].max_tx_apdu_size;
+        }
+        else
+        {
+            max_tx_apdu_size = data_type_table[idx].max_rx_apdu_size;
+        }
+    }
+    else
+    {
+        if (mdep_role == BTA_HL_MDEP_ROLE_SOURCE)
+        {
+            max_tx_apdu_size = BTIF_HL_DEFAULT_SRC_TX_APDU_SIZE;
+        }
+        else
+        {
+            max_tx_apdu_size = BTIF_HL_DEFAULT_SRC_RX_APDU_SIZE;
+        }
+
+    }
+
+    BTIF_TRACE_DEBUG("%s mdep_role=%d data_type=0x%4x size=%d",
+                      __FUNCTION__, mdep_role, data_type, max_tx_apdu_size);
+    return max_tx_apdu_size;
+}
+
+/*******************************************************************************
+**
+** Function      btif_hl_get_max_rx_apdu_size
+**
+** Description  Find the maximum RX APDU size for the specified data type and
+**              MDEP role
+**
+** Returns      UINT16
+**
+*******************************************************************************/
+UINT16  btif_hl_get_max_rx_apdu_size(tBTA_HL_MDEP_ROLE mdep_role,
+                                     UINT16 data_type ){
+    UINT8  idx;
+    UINT16 max_rx_apdu_size =0;
+
+    if (btif_hl_find_data_type_idx(data_type, &idx))
+    {
+        if (mdep_role == BTA_HL_MDEP_ROLE_SOURCE)
+        {
+            max_rx_apdu_size = data_type_table[idx].max_rx_apdu_size;
+        }
+        else
+        {
+            max_rx_apdu_size = data_type_table[idx].max_tx_apdu_size;
+        }
+    }
+    else
+    {
+        if (mdep_role == BTA_HL_MDEP_ROLE_SOURCE)
+        {
+            max_rx_apdu_size = BTIF_HL_DEFAULT_SRC_RX_APDU_SIZE;
+        }
+        else
+        {
+            max_rx_apdu_size = BTIF_HL_DEFAULT_SRC_TX_APDU_SIZE;
+        }
+    }
+
+    BTIF_TRACE_DEBUG("%s mdep_role=%d data_type=0x%4x size=%d",
+                      __FUNCTION__, mdep_role, data_type, max_rx_apdu_size);
+
+    return max_rx_apdu_size;
+}
+
+/*******************************************************************************
+**
+** Function      btif_hl_if_channel_setup_pending
+**
+** Description
+**
+** Returns      BOOLEAN
+**
+*******************************************************************************/
+
+static BOOLEAN btif_hl_get_bta_mdep_role(bthl_mdep_role_t mdep, tBTA_HL_MDEP_ROLE *p){
+    BOOLEAN status = TRUE;
+    switch (mdep)
+    {
+        case BTHL_MDEP_ROLE_SOURCE:
+            *p = BTA_HL_MDEP_ROLE_SOURCE;
+            break;
+        case BTHL_MDEP_ROLE_SINK:
+            *p = BTA_HL_MDEP_ROLE_SINK;
+            break;
+        default:
+            *p = BTA_HL_MDEP_ROLE_SOURCE;
+            status = FALSE;
+            break;
+    }
+
+    BTIF_TRACE_DEBUG("%s status=%d bta_mdep_role=%d (%d:btif)",
+                      __FUNCTION__, status, *p, mdep);
+    return status;
+}
+/*******************************************************************************
+**
+** Function btif_hl_get_bta_channel_type
+**
+** Description convert bthl channel type to BTA DCH channel type
+**
+** Returns BOOLEAN
+**
+*******************************************************************************/
+
+static BOOLEAN btif_hl_get_bta_channel_type(bthl_channel_type_t channel_type, tBTA_HL_DCH_CFG *p){
+    BOOLEAN status = TRUE;
+    switch (channel_type)
+    {
+        case BTHL_CHANNEL_TYPE_RELIABLE:
+            *p = BTA_HL_DCH_CFG_RELIABLE;
+            break;
+        case BTHL_CHANNEL_TYPE_STREAMING:
+            *p = BTA_HL_DCH_CFG_STREAMING;
+            break;
+        case BTHL_CHANNEL_TYPE_ANY:
+            *p = BTA_HL_DCH_CFG_NO_PREF;
+            break;
+        default:
+            status = FALSE;
+            break;
+    }
+    BTIF_TRACE_DEBUG("%s status = %d BTA DCH CFG=%d (1-rel 2-strm",
+                      __FUNCTION__, status, *p);
+    return status;
+}
+/*******************************************************************************
+**
+** Function btif_hl_get_next_app_id
+**
+** Description get next applcation id
+**
+** Returns UINT8
+**
+*******************************************************************************/
+
+static UINT8 btif_hl_get_next_app_id(){
+    UINT8 next_app_id = btif_hl_cb.next_app_id;
+
+    btif_hl_cb.next_app_id++;
+    return next_app_id;
+}
+/*******************************************************************************
+**
+** Function btif_hl_get_next_channel_id
+**
+** Description get next channel id
+**
+** Returns int
+**
+*******************************************************************************/
+static int btif_hl_get_next_channel_id(UINT8 app_id){
+    UINT16 next_channel_id = btif_hl_cb.next_channel_id;
+    int channel_id;
+    btif_hl_cb.next_channel_id++;
+    channel_id = (app_id << 16) + next_channel_id;
+    BTIF_TRACE_DEBUG("%s channel_id=0x%08x, app_id=0x%02x next_channel_id=0x%04x", __FUNCTION__,
+                      channel_id, app_id,  next_channel_id);
+    return channel_id;
+}
+/*******************************************************************************
+**
+** Function btif_hl_get_app_id
+**
+** Description get the applicaiton id associated with the channel id
+**
+** Returns UINT8
+**
+*******************************************************************************/
+
+static UINT8 btif_hl_get_app_id(int channel_id){
+    UINT8 app_id =(UINT8) (channel_id >> 16);
+    BTIF_TRACE_DEBUG("%s channel_id=0x%08x, app_id=0x%02x ", __FUNCTION__,channel_id, app_id);
+    return app_id;
+}
+/*******************************************************************************
+**
+** Function btif_hl_init_next_app_id
+**
+** Description initialize the application id
+**
+** Returns void
+**
+*******************************************************************************/
+static void btif_hl_init_next_app_id(void){
+    btif_hl_cb.next_app_id = 1;
+}
+/*******************************************************************************
+**
+** Function btif_hl_init_next_channel_id
+**
+** Description initialize the channel id
+**
+** Returns void
+**
+*******************************************************************************/
+static void btif_hl_init_next_channel_id(void){
+    btif_hl_cb.next_channel_id = 1;
+}
+
+/*******************************************************************************
+**
+** Function      btif_hl_find_app_idx_using_handle
+**
+** Description  Find the applicaiton index using handle
+**
+** Returns      BOOLEAN
+**
+*******************************************************************************/
+BOOLEAN btif_hl_find_app_idx_using_handle(tBTA_HL_APP_HANDLE app_handle,
+                                          UINT8 *p_app_idx){
+    BOOLEAN found=FALSE;
+    UINT8 i;
+
+    for (i=0; i < BTA_HL_NUM_APPS ; i ++)
+    {
+        if (btif_hl_cb.acb[i].in_use &&
+            (btif_hl_cb.acb[i].app_handle == app_handle))
+        {
+            found = TRUE;
+            *p_app_idx = i;
+            break;
+        }
+    }
+
+    BTIF_TRACE_EVENT("%s status=%d handle=%d app_idx=%d ",
+                      __FUNCTION__, found, app_handle , i);
+
+    return found;
+}
+
+/*******************************************************************************
+**
+** Function      btif_hl_find_app_idx_using_app_id
+**
+** Description  Find the applicaiton index using app_id
+**
+** Returns      BOOLEAN
+**
+*******************************************************************************/
+BOOLEAN btif_hl_find_app_idx_using_app_id(UINT8 app_id,
+                                          UINT8 *p_app_idx){
+    BOOLEAN found=FALSE;
+    UINT8 i;
+
+    *p_app_idx = 0;
+    for (i=0; i < BTA_HL_NUM_APPS ; i ++)
+    {
+        if (btif_hl_cb.acb[i].in_use &&
+            (btif_hl_cb.acb[i].app_id == app_id))
+        {
+            found = TRUE;
+            *p_app_idx = i;
+            break;
+        }
+    }
+
+    BTIF_TRACE_EVENT("%s found=%d app_id=%d app_idx=%d ",
+                      __FUNCTION__, found, app_id , i);
+
+    return found;
+}
+
+/*******************************************************************************
+**
+** Function      btif_hl_find_mcl_idx_using_handle
+**
+** Description  Find the MCL index using handle
+**
+** Returns      BOOLEAN
+**
+*******************************************************************************/
+BOOLEAN btif_hl_find_mcl_idx_using_handle( tBTA_HL_MCL_HANDLE mcl_handle,
+                                           UINT8 *p_app_idx, UINT8 *p_mcl_idx){
+    btif_hl_app_cb_t  *p_acb;
+    BOOLEAN         found=FALSE;
+    UINT8 i,j;
+
+    for (i=0; i<BTA_HL_NUM_APPS; i++)
+    {
+        p_acb =BTIF_HL_GET_APP_CB_PTR(i);
+        for (j=0; j < BTA_HL_NUM_MCLS ; j++)
+        {
+            if (p_acb->mcb[j].in_use)
+                BTIF_TRACE_DEBUG("btif_hl_find_mcl_idx_using_handle:app_idx=%d,"
+                "mcl_idx =%d mcl_handle=%d",i,j,p_acb->mcb[j].mcl_handle);
+            if (p_acb->mcb[j].in_use &&
+                (p_acb->mcb[j].mcl_handle == mcl_handle))
+            {
+                found = TRUE;
+                *p_app_idx = i;
+                *p_mcl_idx = j;
+                break;
+            }
+        }
+    }
+    BTIF_TRACE_DEBUG("%s found=%d app_idx=%d mcl_idx=%d",__FUNCTION__,
+                      found, i, j);
+    return found;
+}
+
+/*******************************************************************************
+**
+** Function      btif_hl_find_mdl_idx_using_mdl_id
+**
+** Description  Find the mdl index using mdl_id
+**
+** Returns      BOOLEAN
+**
+*******************************************************************************/
+BOOLEAN btif_hl_find_mcl_idx_using_mdl_id( UINT8 mdl_id,UINT8 mcl_handle,
+                                           UINT8 *p_app_idx, UINT8 *p_mcl_idx){
+    btif_hl_app_cb_t  *p_acb;
+    btif_hl_mcl_cb_t  *p_mcb;
+    BOOLEAN         found=FALSE;
+    UINT8 i,j,x;
+
+    for (i=0; i<BTA_HL_NUM_APPS; i++)
+    {
+        p_acb =BTIF_HL_GET_APP_CB_PTR(i);
+        for (j=0; j < BTA_HL_NUM_MCLS ; j++)
+        {
+            if (p_acb->mcb[j].in_use &&
+                (p_acb->mcb[j].mcl_handle == mcl_handle))
+            {
+                    p_mcb = &p_acb->mcb[j];
+                    BTIF_TRACE_DEBUG("btif_hl_find_mcl_idx_using_mdl_id: mcl handle found j =%d",j);
+                    for (x=0; x < BTA_HL_NUM_MDLS_PER_MCL ; x ++)
+                    {
+                        if (p_mcb->mdl[x].in_use && p_mcb->mdl[x].mdl_id == mdl_id)
+                        {
+                            BTIF_TRACE_DEBUG("btif_hl_find_mcl_idx_using_mdl_id:found x =%d",x);
+                            found = TRUE;
+                            *p_app_idx = i;
+                            *p_mcl_idx = j;
+                            break;
+                        }
+                    }
+            }
+        }
+    }
+    BTIF_TRACE_DEBUG("%s found=%d app_idx=%d mcl_idx=%d",__FUNCTION__,
+                      found, i, j);
+    return found;
+}
+
+/*******************************************************************************
+**
+** Function      btif_hl_find_mcl_idx_using_deleted_mdl_id
+**
+** Description  Find the app index deleted_mdl_id
+**
+** Returns      BOOLEAN
+**
+*******************************************************************************/
+BOOLEAN btif_hl_find_app_idx_using_deleted_mdl_id( UINT8 mdl_id,
+                                           UINT8 *p_app_idx){
+    btif_hl_app_cb_t  *p_acb;
+    BOOLEAN         found=FALSE;
+    UINT8 i;
+
+    for (i=0; i<BTA_HL_NUM_APPS; i++)
+    {
+        p_acb =BTIF_HL_GET_APP_CB_PTR(i);
+        if (p_acb->delete_mdl.active) {
+            BTIF_TRACE_DEBUG("%s: app_idx=%d, mdl_id=%d",
+                             __FUNCTION__,i,mdl_id);
+        }
+        if (p_acb->delete_mdl.active &&
+            (p_acb->delete_mdl.mdl_id == mdl_id))
+        {
+            found = TRUE;
+            *p_app_idx = i;
+            break;
+        }
+    }
+    BTIF_TRACE_DEBUG("%s found=%d app_idx=%d",__FUNCTION__,
+                      found, i);
+    return found;
+}
+
+/*******************************************************************************
+**
+** Function      btif_hl_stop_timer_using_handle
+**
+** Description  clean control channel cb using handle
+**
+** Returns      void
+**
+*******************************************************************************/
+static void btif_hl_stop_timer_using_handle( tBTA_HL_MCL_HANDLE mcl_handle){
+    btif_hl_app_cb_t  *p_acb;
+    UINT8 i,j;
+
+    for (i=0; i<BTA_HL_NUM_APPS; i++)
+    {
+        p_acb =BTIF_HL_GET_APP_CB_PTR(i);
+        for (j=0; j < BTA_HL_NUM_MCLS ; j++)
+        {
+            if (p_acb->mcb[j].in_use &&
+                (p_acb->mcb[j].mcl_handle == mcl_handle))
+            {
+                btif_hl_stop_cch_timer(i, j);
+            }
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function      btif_hl_find_mcl_idx_using_app_idx
+**
+** Description  Find the MCL index using handle
+**
+** Returns      BOOLEAN
+**
+*******************************************************************************/
+BOOLEAN btif_hl_find_mcl_idx_using_app_idx( tBTA_HL_MCL_HANDLE mcl_handle,
+                                           UINT8 p_app_idx, UINT8 *p_mcl_idx){
+    btif_hl_app_cb_t  *p_acb;
+    BOOLEAN         found=FALSE;
+    UINT8 j;
+
+    p_acb =BTIF_HL_GET_APP_CB_PTR(p_app_idx);
+    for (j=0; j < BTA_HL_NUM_MCLS ; j++)
+    {
+        if (p_acb->mcb[j].in_use &&
+            (p_acb->mcb[j].mcl_handle == mcl_handle))
+        {
+            found = TRUE;
+            *p_mcl_idx = j;
+            break;
+        }
+    }
+    BTIF_TRACE_DEBUG("%s found=%dmcl_idx=%d",__FUNCTION__,
+                      found, j);
+    return found;
+}
+
+/*******************************************************************************
+**
+** Function      btif_hl_clean_mdls_using_app_idx
+**
+** Description  clean dch cpntrol bloack using app_idx
+**
+** Returns      void
+**
+*******************************************************************************/
+void btif_hl_clean_mdls_using_app_idx( UINT8 app_idx){
+    btif_hl_app_cb_t  *p_acb;
+    btif_hl_mcl_cb_t  *p_mcb;
+    btif_hl_mdl_cb_t  *p_dcb;
+    UINT8 j,x,y;
+    bt_bdaddr_t     bd_addr;
+
+        p_acb =BTIF_HL_GET_APP_CB_PTR(app_idx);
+        for (j=0; j < BTA_HL_NUM_MCLS ; j++)
+        {
+            if (p_acb->mcb[j].in_use)
+            {
+                    p_mcb = &p_acb->mcb[j];
+                    BTIF_TRACE_DEBUG("btif_hl_find_mcl_idx_using_mdl_id: mcl handle found j =%d",j);
+                    for (x=0; x < BTA_HL_NUM_MDLS_PER_MCL ; x ++)
+                    {
+                        if (p_mcb->mdl[x].in_use)
+                        {
+                            p_dcb = BTIF_HL_GET_MDL_CB_PTR(app_idx, j,x);
+                            btif_hl_release_socket(app_idx,j,x);
+                            for (y=0; y<6; y++)
+                            {
+                                bd_addr.address[y] = p_mcb->bd_addr[y];
+                            }
+                            BTIF_HL_CALL_CBACK(bt_hl_callbacks, channel_state_cb,  p_acb->app_id,
+                                               &bd_addr, p_dcb->local_mdep_cfg_idx,
+                                               p_dcb->channel_id, BTHL_CONN_STATE_DISCONNECTED, 0 );
+                            btif_hl_clean_mdl_cb(p_dcb);
+                            if (!btif_hl_num_dchs_in_use(p_mcb->mcl_handle))
+                                    BTA_HlCchClose(p_mcb->mcl_handle);
+                            BTIF_TRACE_DEBUG("remote DCH close success mdl_idx=%d", x);
+                        }
+                    }
+            }
+        }
+}
+
+/*******************************************************************************
+**
+** Function      btif_hl_find_app_idx
+**
+** Description  Find the application index using application ID
+**
+** Returns      BOOLEAN
+**
+*******************************************************************************/
+BOOLEAN btif_hl_find_app_idx(UINT8 app_id, UINT8 *p_app_idx){
+    BOOLEAN found=FALSE;
+    UINT8 i;
+
+    for (i=0; i < BTA_HL_NUM_APPS ; i ++)
+    {
+
+        if (btif_hl_cb.acb[i].in_use &&
+            (btif_hl_cb.acb[i].app_id == app_id))
+        {
+            found = TRUE;
+            *p_app_idx = i;
+            break;
+        }
+    }
+    BTIF_TRACE_DEBUG("%s found=%d app_idx=%d", __FUNCTION__, found, i );
+
+    return found;
+}
+
+/*******************************************************************************
+**
+** Function      btif_hl_find_app_idx
+**
+** Description  Find the application index using application ID
+**
+** Returns      BOOLEAN
+**
+*******************************************************************************/
+BOOLEAN btif_hl_find_app_idx_using_mdepId(UINT8 mdep_id, UINT8 *p_app_idx){
+    BOOLEAN found=FALSE;
+    UINT8 i;
+
+    *p_app_idx = 0;
+    for (i=0; i < BTA_HL_NUM_APPS ; i ++)
+    {
+        BTIF_TRACE_DEBUG("btif_hl_find_app_idx_using_mdepId: MDEP-ID = %d",
+                btif_hl_cb.acb[i].sup_feature.mdep[0].mdep_id);
+        if (btif_hl_cb.acb[i].in_use &&
+            (btif_hl_cb.acb[i].sup_feature.mdep[0].mdep_id == mdep_id))
+        {
+            found = TRUE;
+            *p_app_idx = i;
+            break;
+        }
+    }
+    BTIF_TRACE_DEBUG("%s found=%d app_idx=%d", __FUNCTION__, found, i );
+
+    return found;
+}
+
+/*******************************************************************************
+**
+** Function      btif_hl_find_avail_mdl_idx
+**
+** Description  Find a not in-use MDL index
+**
+** Returns      BOOLEAN
+**
+*******************************************************************************/
+BOOLEAN btif_hl_find_avail_mdl_idx(UINT8 app_idx, UINT8 mcl_idx,
+                                   UINT8 *p_mdl_idx){
+    btif_hl_mcl_cb_t      *p_mcb = BTIF_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+    BOOLEAN found=FALSE;
+    UINT8 i;
+
+    for (i=0; i < BTA_HL_NUM_MDLS_PER_MCL ; i ++)
+    {
+        if (!p_mcb->mdl[i].in_use)
+        {
+            btif_hl_clean_mdl_cb(&p_mcb->mdl[i]);
+            found = TRUE;
+            *p_mdl_idx = i;
+            break;
+        }
+    }
+
+    BTIF_TRACE_DEBUG("%s found=%d idx=%d",__FUNCTION__, found, i);
+    return found;
+}
+
+/*******************************************************************************
+**
+** Function      btif_hl_find_avail_mcl_idx
+**
+** Description  Find a not in-use MDL index
+**
+** Returns      BOOLEAN
+**
+*******************************************************************************/
+BOOLEAN btif_hl_find_avail_mcl_idx(UINT8 app_idx, UINT8 *p_mcl_idx){
+    BOOLEAN found=FALSE;
+    UINT8 i;
+
+    for (i=0; i < BTA_HL_NUM_MCLS ; i ++)
+    {
+        if (!btif_hl_cb.acb[app_idx].mcb[i].in_use)
+        {
+            found = TRUE;
+            *p_mcl_idx = i;
+            break;
+        }
+    }
+    BTIF_TRACE_DEBUG("%s found=%d mcl_idx=%d", __FUNCTION__, found, i);
+    return found;
+}
+
+/*******************************************************************************
+**
+** Function      btif_hl_find_avail_app_idx
+**
+** Description  Find a not in-use APP index
+**
+** Returns      BOOLEAN
+**
+*******************************************************************************/
+static BOOLEAN btif_hl_find_avail_app_idx(UINT8 *p_idx){
+    BOOLEAN found = FALSE;
+    UINT8 i;
+
+    for (i=0; i < BTA_HL_NUM_APPS ; i ++)
+    {
+        if (!btif_hl_cb.acb[i].in_use)
+        {
+            found = TRUE;
+            *p_idx = i;
+            break;
+        }
+    }
+
+    BTIF_TRACE_DEBUG("%s found=%d app_idx=%d", __FUNCTION__, found, i);
+    return found;
+}
+
+/*******************************************************************************
+**
+** Function         btif_hl_proc_dereg_cfm
+**
+** Description      Process the de-registration confirmation
+**
+** Returns          Nothing
+**
+*******************************************************************************/
+static void btif_hl_proc_dereg_cfm(tBTA_HL *p_data)
+
+{
+    btif_hl_app_cb_t        *p_acb;
+    UINT8                   app_idx;
+    int                     app_id = 0;
+    bthl_app_reg_state_t    state = BTHL_APP_REG_STATE_DEREG_SUCCESS;
+
+    BTIF_TRACE_DEBUG("%s de-reg status=%d app_handle=%d", __FUNCTION__,
+                p_data->dereg_cfm.status, p_data->dereg_cfm.app_handle);
+
+    if (btif_hl_find_app_idx_using_app_id(p_data->dereg_cfm.app_id, &app_idx))
+    {
+        p_acb = BTIF_HL_GET_APP_CB_PTR(app_idx);
+        app_id = (int) p_acb->app_id;
+        if (p_data->dereg_cfm.status == BTA_HL_STATUS_OK)
+        {
+            btif_hl_clean_mdls_using_app_idx(app_idx);
+            for (size_t i = 0; i < BTA_HL_NUM_MCLS; i++)
+                alarm_free(p_acb->mcb[i].cch_timer);
+            memset(p_acb, 0, sizeof(btif_hl_app_cb_t));
+        }
+        else
+            state = BTHL_APP_REG_STATE_DEREG_FAILED;
+
+        BTIF_TRACE_DEBUG("call reg state callback app_id=%d state=%d", app_id, state);
+        BTIF_HL_CALL_CBACK(bt_hl_callbacks, app_reg_state_cb, app_id, state );
+
+        if (btif_hl_is_no_active_app())
+        {
+            btif_hl_disable();
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btif_hl_proc_reg_cfm
+**
+** Description      Process the registration confirmation
+**
+** Returns          Nothing
+**
+*******************************************************************************/
+static void btif_hl_proc_reg_cfm(tBTA_HL *p_data){
+    btif_hl_app_cb_t       *p_acb;
+    UINT8                  app_idx;
+    bthl_app_reg_state_t   state = BTHL_APP_REG_STATE_REG_SUCCESS;
+
+    BTIF_TRACE_DEBUG("%s reg status=%d app_handle=%d", __FUNCTION__, p_data->reg_cfm.status, p_data->reg_cfm.app_handle);
+
+    if (btif_hl_find_app_idx(p_data->reg_cfm.app_id, &app_idx))
+    {
+        p_acb = BTIF_HL_GET_APP_CB_PTR(app_idx);
+        if (p_data->reg_cfm.status == BTA_HL_STATUS_OK)
+        {
+            p_acb->app_handle = p_data->reg_cfm.app_handle;
+        }
+        else
+        {
+            btif_hl_free_app_idx(app_idx);
+            reg_counter--;
+            state = BTHL_APP_REG_STATE_REG_FAILED;
+        }
+
+        BTIF_TRACE_DEBUG("%s call reg state callback app_id=%d reg state=%d", __FUNCTION__,  p_data->reg_cfm.app_id, state);
+        BTIF_HL_CALL_CBACK(bt_hl_callbacks, app_reg_state_cb, ((int) p_data->reg_cfm.app_id), state );
+    }
+}
+
+/*******************************************************************************
+**
+** Function btif_hl_set_chan_cb_state
+**
+** Description set the channel callback state
+**
+** Returns void
+**
+*******************************************************************************/
+void btif_hl_set_chan_cb_state(UINT8 app_idx, UINT8 mcl_idx, btif_hl_chan_cb_state_t state){
+    btif_hl_pending_chan_cb_t   *p_pcb = BTIF_HL_GET_PCB_PTR(app_idx, mcl_idx);
+    btif_hl_chan_cb_state_t cur_state = p_pcb->cb_state;
+
+    if (cur_state != state)
+    {
+        p_pcb->cb_state = state;
+        BTIF_TRACE_DEBUG("%s state %d--->%d",__FUNCTION__, cur_state, state);
+    }
+
+}
+/*******************************************************************************
+**
+** Function btif_hl_send_destroyed_cb
+**
+** Description send the channel destroyed callback
+**
+** Returns void
+**
+*******************************************************************************/
+void btif_hl_send_destroyed_cb(btif_hl_app_cb_t        *p_acb ){
+    bt_bdaddr_t     bd_addr;
+    int             app_id = (int) btif_hl_get_app_id(p_acb->delete_mdl.channel_id);
+
+    btif_hl_copy_bda(&bd_addr, p_acb->delete_mdl.bd_addr);
+    BTIF_TRACE_DEBUG("%s",__FUNCTION__);
+    BTIF_TRACE_DEBUG("call channel state callback channel_id=0x%08x mdep_cfg_idx=%d, state=%d fd=%d",p_acb->delete_mdl.channel_id,
+                      p_acb->delete_mdl.mdep_cfg_idx, BTHL_CONN_STATE_DESTROYED, 0);
+    btif_hl_display_bt_bda(&bd_addr);
+
+    BTIF_HL_CALL_CBACK(bt_hl_callbacks, channel_state_cb,  app_id,
+                       &bd_addr, p_acb->delete_mdl.mdep_cfg_idx,
+                       p_acb->delete_mdl.channel_id, BTHL_CONN_STATE_DESTROYED, 0 );
+}
+/*******************************************************************************
+**
+** Function btif_hl_send_disconnecting_cb
+**
+** Description send a channel disconnecting callback
+**
+** Returns void
+**
+*******************************************************************************/
+void btif_hl_send_disconnecting_cb(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx){
+    btif_hl_mdl_cb_t        *p_dcb = BTIF_HL_GET_MDL_CB_PTR( app_idx,  mcl_idx, mdl_idx);
+    btif_hl_soc_cb_t        *p_scb = p_dcb->p_scb;
+    bt_bdaddr_t             bd_addr;
+    int                     app_id = (int) btif_hl_get_app_id(p_scb->channel_id);
+
+    btif_hl_copy_bda(&bd_addr, p_scb->bd_addr);
+
+    BTIF_TRACE_DEBUG("%s",__FUNCTION__);
+    BTIF_TRACE_DEBUG("call channel state callback  channel_id=0x%08x mdep_cfg_idx=%d, state=%d fd=%d",p_scb->channel_id,
+                      p_scb->mdep_cfg_idx, BTHL_CONN_STATE_DISCONNECTING, p_scb->socket_id[0]);
+    btif_hl_display_bt_bda(&bd_addr);
+    BTIF_HL_CALL_CBACK(bt_hl_callbacks, channel_state_cb,  app_id,
+                       &bd_addr, p_scb->mdep_cfg_idx,
+                       p_scb->channel_id, BTHL_CONN_STATE_DISCONNECTING, p_scb->socket_id[0] );
+}
+/*******************************************************************************
+**
+** Function btif_hl_send_setup_connecting_cb
+**
+** Description send a channel connecting callback
+**
+** Returns void
+**
+*******************************************************************************/
+void btif_hl_send_setup_connecting_cb(UINT8 app_idx, UINT8 mcl_idx){
+    btif_hl_pending_chan_cb_t   *p_pcb = BTIF_HL_GET_PCB_PTR(app_idx, mcl_idx);
+    bt_bdaddr_t                 bd_addr;
+    int                         app_id = (int) btif_hl_get_app_id(p_pcb->channel_id);
+
+    btif_hl_copy_bda(&bd_addr, p_pcb->bd_addr);
+
+    if (p_pcb->in_use && p_pcb->cb_state == BTIF_HL_CHAN_CB_STATE_CONNECTING_PENDING)
+    {
+        BTIF_TRACE_DEBUG("%s",__FUNCTION__);
+        BTIF_TRACE_DEBUG("call channel state callback  channel_id=0x%08x mdep_cfg_idx=%d state=%d fd=%d",p_pcb->channel_id,
+                          p_pcb->mdep_cfg_idx, BTHL_CONN_STATE_CONNECTING, 0);
+        btif_hl_display_bt_bda(&bd_addr);
+
+        BTIF_HL_CALL_CBACK(bt_hl_callbacks, channel_state_cb, app_id,
+                           &bd_addr, p_pcb->mdep_cfg_idx,
+                           p_pcb->channel_id, BTHL_CONN_STATE_CONNECTING, 0 );
+        btif_hl_set_chan_cb_state(app_idx, mcl_idx, BTIF_HL_CHAN_CB_STATE_CONNECTED_PENDING);
+    }
+}
+/*******************************************************************************
+**
+** Function btif_hl_send_setup_disconnected_cb
+**
+** Description send a channel disconnected callback
+**
+** Returns void
+**
+*******************************************************************************/
+void btif_hl_send_setup_disconnected_cb(UINT8 app_idx, UINT8 mcl_idx){
+    btif_hl_pending_chan_cb_t   *p_pcb = BTIF_HL_GET_PCB_PTR(app_idx, mcl_idx);
+    bt_bdaddr_t                 bd_addr;
+    int                         app_id = (int) btif_hl_get_app_id(p_pcb->channel_id);
+
+    btif_hl_copy_bda(&bd_addr, p_pcb->bd_addr);
+
+    BTIF_TRACE_DEBUG("%s p_pcb->in_use=%d",__FUNCTION__, p_pcb->in_use);
+    if (p_pcb->in_use)
+    {
+        BTIF_TRACE_DEBUG("%p_pcb->cb_state=%d",p_pcb->cb_state);
+        if (p_pcb->cb_state == BTIF_HL_CHAN_CB_STATE_CONNECTING_PENDING)
+        {
+            BTIF_TRACE_DEBUG("call channel state callback  channel_id=0x%08x mdep_cfg_idx=%d state=%d fd=%d",p_pcb->channel_id,
+                              p_pcb->mdep_cfg_idx, BTHL_CONN_STATE_CONNECTING, 0);
+            btif_hl_display_bt_bda(&bd_addr);
+            BTIF_HL_CALL_CBACK(bt_hl_callbacks, channel_state_cb, app_id,
+                               &bd_addr, p_pcb->mdep_cfg_idx,
+                               p_pcb->channel_id, BTHL_CONN_STATE_CONNECTING, 0 );
+
+            BTIF_TRACE_DEBUG("call channel state callback  channel_id=0x%08x mdep_cfg_idx=%d state=%d fd=%d",p_pcb->channel_id,
+                              p_pcb->mdep_cfg_idx, BTHL_CONN_STATE_DISCONNECTED, 0);
+            btif_hl_display_bt_bda(&bd_addr);
+            BTIF_HL_CALL_CBACK(bt_hl_callbacks, channel_state_cb, app_id,
+                               &bd_addr, p_pcb->mdep_cfg_idx,
+                               p_pcb->channel_id, BTHL_CONN_STATE_DISCONNECTED, 0 );
+        }
+        else if (p_pcb->cb_state == BTIF_HL_CHAN_CB_STATE_CONNECTED_PENDING)
+        {
+            BTIF_TRACE_DEBUG("call channel state callback  channel_id=0x%08x mdep_cfg_idx=%d state=%d fd=%d",p_pcb->channel_id,
+                              p_pcb->mdep_cfg_idx, BTHL_CONN_STATE_DISCONNECTED, 0);
+            btif_hl_display_bt_bda(&bd_addr);
+            BTIF_HL_CALL_CBACK(bt_hl_callbacks, channel_state_cb,  app_id,
+                               &bd_addr, p_pcb->mdep_cfg_idx,
+                               p_pcb->channel_id, BTHL_CONN_STATE_DISCONNECTED, 0 );
+        }
+        btif_hl_clean_pcb(p_pcb);
+    }
+}
+/*******************************************************************************
+**
+** Function         btif_hl_proc_sdp_query_cfm
+**
+** Description      Process the SDP query confirmation
+**
+** Returns          Nothing
+**
+*******************************************************************************/
+static BOOLEAN btif_hl_proc_sdp_query_cfm(tBTA_HL *p_data){
+    btif_hl_app_cb_t                *p_acb;
+    btif_hl_mcl_cb_t                *p_mcb;
+    tBTA_HL_SDP                     *p_sdp;
+    tBTA_HL_CCH_OPEN_PARAM          open_param;
+    UINT8                           app_idx, mcl_idx, sdp_idx = 0;
+    UINT8                           num_recs, i, num_mdeps, j;
+    btif_hl_cch_op_t                old_cch_oper;
+    BOOLEAN                         status =FALSE;
+    btif_hl_pending_chan_cb_t     *p_pcb;
+
+    BTIF_TRACE_DEBUG("%s", __FUNCTION__);
+
+    p_sdp = p_data->sdp_query_cfm.p_sdp;
+    num_recs = p_sdp->num_recs;
+
+    BTIF_TRACE_DEBUG("num of SDP records=%d",num_recs);
+    for (i=0; i<num_recs; i++)
+    {
+        BTIF_TRACE_DEBUG("rec_idx=%d ctrl_psm=0x%x data_psm=0x%x",
+                          (i+1),p_sdp->sdp_rec[i].ctrl_psm, p_sdp->sdp_rec[i].data_psm);
+        BTIF_TRACE_DEBUG("MCAP supported procedures=0x%x",p_sdp->sdp_rec[i].mcap_sup_proc);
+        num_mdeps = p_sdp->sdp_rec[i].num_mdeps;
+        BTIF_TRACE_DEBUG("num of mdeps =%d",num_mdeps);
+        for (j=0; j< num_mdeps; j++)
+        {
+            BTIF_TRACE_DEBUG("mdep_idx=%d mdep_id=0x%x data_type=0x%x mdep_role=0x%x",
+                              (j+1),
+                              p_sdp->sdp_rec[i].mdep_cfg[j].mdep_id,
+                              p_sdp->sdp_rec[i].mdep_cfg[j].data_type,
+                              p_sdp->sdp_rec[i].mdep_cfg[j].mdep_role );
+        }
+    }
+
+        if (btif_hl_find_app_idx_using_app_id(p_data->sdp_query_cfm.app_id, &app_idx))
+        {
+            p_acb = BTIF_HL_GET_APP_CB_PTR(app_idx);
+
+            if (btif_hl_find_mcl_idx(app_idx, p_data->sdp_query_cfm.bd_addr, &mcl_idx))
+            {
+                p_mcb = BTIF_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+                if (p_mcb->cch_oper != BTIF_HL_CCH_OP_NONE)
+                {
+                    memcpy(&p_mcb->sdp, p_sdp, sizeof(tBTA_HL_SDP));
+                    old_cch_oper = p_mcb->cch_oper;
+                    p_mcb->cch_oper = BTIF_HL_CCH_OP_NONE;
+
+                    switch (old_cch_oper)
+                    {
+                        case BTIF_HL_CCH_OP_MDEP_FILTERING:
+                            status = btif_hl_find_sdp_idx_using_mdep_filter(app_idx,
+                                                                    mcl_idx, &sdp_idx);
+                            break;
+                        default:
+                            break;
+                    }
+
+                    if (status)
+                    {
+                        p_mcb->sdp_idx       = sdp_idx;
+                        p_mcb->valid_sdp_idx = TRUE;
+                        p_mcb->ctrl_psm      = p_mcb->sdp.sdp_rec[sdp_idx].ctrl_psm;
+
+                        switch (old_cch_oper)
+                        {
+                            case BTIF_HL_CCH_OP_MDEP_FILTERING:
+                                p_pcb = BTIF_HL_GET_PCB_PTR(app_idx, mcl_idx);
+                                if (p_pcb->in_use)
+                                {
+                                    if (!p_pcb->abort_pending)
+                                    {
+                                        switch (p_pcb->op)
+                                        {
+                                            case BTIF_HL_PEND_DCH_OP_OPEN:
+                                                btif_hl_send_setup_connecting_cb(app_idx, mcl_idx);
+                                                break;
+                                            case BTIF_HL_PEND_DCH_OP_DELETE_MDL:
+                                            default:
+                                                break;
+                                        }
+                                        open_param.ctrl_psm = p_mcb->ctrl_psm;
+                                        bdcpy(open_param.bd_addr, p_mcb->bd_addr);
+                                        open_param.sec_mask =
+                                                (BTA_SEC_AUTHENTICATE | BTA_SEC_ENCRYPT);
+                                        BTA_HlCchOpen(p_acb->app_id,p_acb->app_handle, &open_param);
+                                    }
+                                    else
+                                    {
+                                        BTIF_TRACE_DEBUG("channel abort pending");
+                                    }
+                                }
+                                break;
+
+                            case BTIF_HL_CCH_OP_DCH_OPEN:
+                                status = btif_hl_proc_pending_op(app_idx,mcl_idx);
+                                break;
+
+                            default:
+                                BTIF_TRACE_ERROR("Invalid CCH oper %d", old_cch_oper);
+                                break;
+                        }
+                    }
+                    else
+                    {
+                        BTIF_TRACE_ERROR("Can not find SDP idx discard CCH Open request");
+                    }
+                }
+            }
+        }
+    return status;
+}
+
+/*******************************************************************************
+**
+** Function         btif_hl_proc_cch_open_ind
+**
+** Description      Process the CCH open indication
+**
+** Returns          Nothing
+**
+*******************************************************************************/
+static void btif_hl_proc_cch_open_ind(tBTA_HL *p_data)
+
+{
+    btif_hl_mcl_cb_t         *p_mcb;
+    UINT8                   mcl_idx;
+    int                     i;
+
+    BTIF_TRACE_DEBUG("%s", __FUNCTION__);
+    for(i=0; i<BTA_HL_NUM_APPS; i++)
+    {
+        if (btif_hl_cb.acb[i].in_use)
+        {
+            if (!btif_hl_find_mcl_idx(i, p_data->cch_open_ind.bd_addr, &mcl_idx))
+            {
+                if (btif_hl_find_avail_mcl_idx(i, &mcl_idx))
+                {
+                    p_mcb = BTIF_HL_GET_MCL_CB_PTR(i, mcl_idx);
+                    alarm_free(p_mcb->cch_timer);
+                    memset(p_mcb, 0, sizeof(btif_hl_mcl_cb_t));
+                    p_mcb->in_use = TRUE;
+                    p_mcb->is_connected = TRUE;
+                    p_mcb->mcl_handle = p_data->cch_open_ind.mcl_handle;
+                    bdcpy(p_mcb->bd_addr, p_data->cch_open_ind.bd_addr);
+                    btif_hl_start_cch_timer(i, mcl_idx);
+                }
+            }
+            else
+            {
+                BTIF_TRACE_ERROR("The MCL already exist for cch_open_ind");
+            }
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btif_hl_proc_pending_op
+**
+** Description      Process the pending dch operation.
+**
+** Returns          Nothing
+**
+*******************************************************************************/
+BOOLEAN btif_hl_proc_pending_op(UINT8 app_idx, UINT8 mcl_idx)
+
+{
+
+    btif_hl_app_cb_t            *p_acb = BTIF_HL_GET_APP_CB_PTR(app_idx);
+    btif_hl_mcl_cb_t            *p_mcb = BTIF_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+    btif_hl_pending_chan_cb_t   *p_pcb;
+    BOOLEAN                     status = FALSE;
+    tBTA_HL_DCH_OPEN_PARAM      dch_open;
+    tBTA_HL_MDL_ID              mdl_id;
+    tBTA_HL_DCH_RECONNECT_PARAM reconnect_param;
+
+    p_pcb = BTIF_HL_GET_PCB_PTR(app_idx, mcl_idx);
+    if (p_pcb->in_use)
+    {
+        switch (p_pcb->op)
+        {
+            case BTIF_HL_PEND_DCH_OP_OPEN:
+                if (!p_pcb->abort_pending)
+                {
+                    BTIF_TRACE_DEBUG("op BTIF_HL_PEND_DCH_OP_OPEN");
+                    dch_open.ctrl_psm = p_mcb->ctrl_psm;
+                    dch_open.local_mdep_id = p_acb->sup_feature.mdep[p_pcb->mdep_cfg_idx].mdep_id;
+                    if (btif_hl_find_peer_mdep_id(p_acb->app_id, p_mcb->bd_addr,
+                                                  p_acb->sup_feature.mdep[p_pcb->mdep_cfg_idx].mdep_cfg.mdep_role,
+                                                  p_acb->sup_feature.mdep[p_pcb->mdep_cfg_idx].mdep_cfg.data_cfg[0].data_type, &dch_open.peer_mdep_id ))
+                    {
+                        dch_open.local_cfg = p_acb->channel_type[p_pcb->mdep_cfg_idx];
+                        if ((p_acb->sup_feature.mdep[p_pcb->mdep_cfg_idx].mdep_cfg.mdep_role == BTA_HL_MDEP_ROLE_SOURCE)
+                            && !btif_hl_is_the_first_reliable_existed(app_idx, mcl_idx))
+                        {
+                            dch_open.local_cfg = BTA_HL_DCH_CFG_RELIABLE;
+                        }
+                        dch_open.sec_mask = (BTA_SEC_AUTHENTICATE | BTA_SEC_ENCRYPT);
+                        BTIF_TRACE_DEBUG("dch_open.local_cfg=%d  ", dch_open.local_cfg);
+                        btif_hl_send_setup_connecting_cb(app_idx,mcl_idx);
+
+                        if (!btif_hl_is_reconnect_possible(app_idx, mcl_idx, p_pcb->mdep_cfg_idx, &dch_open, &mdl_id ))
+                        {
+                            BTIF_TRACE_DEBUG("Issue DCH open, mcl_handle=%d",p_mcb->mcl_handle);
+                            BTA_HlDchOpen(p_mcb->mcl_handle, &dch_open);
+                        }
+                        else
+                        {
+                            reconnect_param.ctrl_psm = p_mcb->ctrl_psm;
+                            reconnect_param.mdl_id = mdl_id;;
+                            BTIF_TRACE_DEBUG("Issue Reconnect ctrl_psm=0x%x mdl_id=0x%x",reconnect_param.ctrl_psm, reconnect_param.mdl_id);
+                            BTA_HlDchReconnect(p_mcb->mcl_handle, &reconnect_param);
+                        }
+                        status = TRUE;
+                    }
+                }
+                else
+                {
+                    btif_hl_send_setup_disconnected_cb(app_idx, mcl_idx);
+                    status = TRUE;
+                }
+                break;
+            case BTIF_HL_PEND_DCH_OP_DELETE_MDL:
+                BTA_HlDeleteMdl(p_mcb->mcl_handle, p_acb->delete_mdl.mdl_id);
+                status = TRUE;
+                break;
+
+            default:
+                break;
+        }
+    }
+    return status;
+}
+
+/*******************************************************************************
+**
+** Function         btif_hl_proc_cch_open_cfm
+**
+** Description      Process the CCH open confirmation
+**
+** Returns          Nothing
+**
+*******************************************************************************/
+static BOOLEAN btif_hl_proc_cch_open_cfm(tBTA_HL *p_data)
+
+{
+    btif_hl_mcl_cb_t         *p_mcb;
+    UINT8                    app_idx, mcl_idx;
+    BOOLEAN                  status = FALSE;
+
+    BTIF_TRACE_DEBUG("%s", __FUNCTION__);
+
+    if (btif_hl_find_app_idx_using_app_id(p_data->cch_open_cfm.app_id, &app_idx))
+    {
+        BTIF_TRACE_DEBUG("app_idx=%d", app_idx);
+        if (btif_hl_find_mcl_idx(app_idx, p_data->cch_open_cfm.bd_addr, &mcl_idx))
+        {
+            p_mcb = BTIF_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+            BTIF_TRACE_DEBUG("mcl_idx=%d, mcl_handle=%d", mcl_idx,p_data->cch_open_cfm.mcl_handle);
+            p_mcb->mcl_handle = p_data->cch_open_cfm.mcl_handle;
+            p_mcb->is_connected = TRUE;
+            status = btif_hl_proc_pending_op(app_idx, mcl_idx);
+            if (status)
+                btif_hl_start_cch_timer(app_idx, mcl_idx);
+        }
+    }
+
+    return status;
+}
+
+/*******************************************************************************
+**
+** Function      btif_hl_clean_mcb_using_handle
+**
+** Description  clean control channel cb using handle
+**
+** Returns      void
+**
+*******************************************************************************/
+static void btif_hl_clean_mcb_using_handle( tBTA_HL_MCL_HANDLE mcl_handle){
+    btif_hl_app_cb_t  *p_acb;
+    UINT8 i,j;
+
+    for (i=0; i<BTA_HL_NUM_APPS; i++)
+    {
+        p_acb =BTIF_HL_GET_APP_CB_PTR(i);
+        for (j=0; j < BTA_HL_NUM_MCLS ; j++)
+        {
+            if (p_acb->mcb[j].in_use)
+                BTIF_TRACE_DEBUG("btif_hl_find_mcl_idx_using_handle: app_idx=%d,"
+                    "mcl_idx =%d mcl_handle=%d",i,j,p_acb->mcb[j].mcl_handle);
+            if (p_acb->mcb[j].in_use &&
+                (p_acb->mcb[j].mcl_handle == mcl_handle))
+            {
+                btif_hl_stop_cch_timer(i, j);
+                btif_hl_release_mcl_sockets(i, j);
+                btif_hl_send_setup_disconnected_cb(i, j);
+                btif_hl_clean_mcl_cb(i, j);
+            }
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btif_hl_proc_cch_close_ind
+**
+** Description      Process the CCH close indication
+**
+** Returns          Nothing
+**
+*******************************************************************************/
+static void btif_hl_proc_cch_close_ind(tBTA_HL *p_data)
+
+{
+    BTIF_TRACE_DEBUG("%s", __FUNCTION__);
+
+    btif_hl_clean_mcb_using_handle(p_data->cch_close_ind.mcl_handle);
+}
+
+/*******************************************************************************
+**
+** Function         btif_hl_proc_cch_close_cfm
+**
+** Description      Process the CCH close confirmation
+**
+** Returns          Nothing
+**
+*******************************************************************************/
+static void btif_hl_proc_cch_close_cfm(tBTA_HL *p_data)
+{
+    BTIF_TRACE_DEBUG("%s", __FUNCTION__);
+
+    btif_hl_clean_mcb_using_handle(p_data->cch_close_ind.mcl_handle);
+}
+
+/*******************************************************************************
+**
+** Function         btif_hl_proc_create_ind
+**
+** Description      Process the MDL create indication
+**
+** Returns          Nothing
+**
+*******************************************************************************/
+static void btif_hl_proc_create_ind(tBTA_HL *p_data){
+    btif_hl_app_cb_t         *p_acb;
+    btif_hl_mcl_cb_t         *p_mcb;
+    tBTA_HL_MDEP            *p_mdep;
+    UINT8                   orig_app_idx, mcl_idx, mdep_cfg_idx;
+    BOOLEAN                 first_reliable_exist;
+    BOOLEAN                 success = TRUE;
+    tBTA_HL_DCH_CFG         rsp_cfg = BTA_HL_DCH_CFG_UNKNOWN;
+    tBTA_HL_DCH_CREATE_RSP  rsp_code = BTA_HL_DCH_CREATE_RSP_CFG_REJ;
+    tBTA_HL_DCH_CREATE_RSP_PARAM create_rsp_param;
+
+    BTIF_TRACE_DEBUG("%s", __FUNCTION__);
+
+// Find the correct app_idx based on the mdep_id;
+    btif_hl_find_app_idx_using_mdepId(p_data->dch_create_ind.local_mdep_id,&orig_app_idx);
+    if (btif_hl_find_mcl_idx(orig_app_idx, p_data->dch_create_ind.bd_addr, &mcl_idx))
+    {
+        p_acb =BTIF_HL_GET_APP_CB_PTR(orig_app_idx);
+        p_mcb =BTIF_HL_GET_MCL_CB_PTR(orig_app_idx, mcl_idx);
+
+        if (btif_hl_find_mdep_cfg_idx(orig_app_idx, p_data->dch_create_ind.local_mdep_id, &mdep_cfg_idx))
+        {
+            p_mdep = &(p_acb->sup_feature.mdep[mdep_cfg_idx]);
+            first_reliable_exist = btif_hl_is_the_first_reliable_existed(orig_app_idx, mcl_idx);
+            switch (p_mdep->mdep_cfg.mdep_role)
+            {
+                case BTA_HL_MDEP_ROLE_SOURCE:
+                    if (p_data->dch_create_ind.cfg == BTA_HL_DCH_CFG_NO_PREF)
+                    {
+                        if (first_reliable_exist)
+                        {
+                            rsp_cfg = p_acb->channel_type[mdep_cfg_idx];
+                        }
+                        else
+                        {
+                            rsp_cfg = BTA_HL_DCH_CFG_RELIABLE;
+                        }
+                        rsp_code = BTA_HL_DCH_CREATE_RSP_SUCCESS;
+                    }
+
+                    break;
+                case BTA_HL_MDEP_ROLE_SINK:
+
+                    BTIF_TRACE_DEBUG("btif_hl_proc_create_ind:BTA_HL_MDEP_ROLE_SINK");
+                    if ((p_data->dch_create_ind.cfg  == BTA_HL_DCH_CFG_RELIABLE) ||
+                        (first_reliable_exist && (p_data->dch_create_ind.cfg  == BTA_HL_DCH_CFG_STREAMING)))
+                    {
+                        rsp_code = BTA_HL_DCH_CREATE_RSP_SUCCESS;
+                        rsp_cfg = p_data->dch_create_ind.cfg;
+                        BTIF_TRACE_DEBUG("btif_hl_proc_create_ind:BTA_HL_MDEP_ROLE_SINK cfg = %d",rsp_cfg);
+                    }
+                    break;
+                default:
+                    break;
+            }
+        }
+    }
+    else
+    {
+        success = FALSE;
+    }
+
+    if (success)
+    {
+        BTIF_TRACE_DEBUG("create response rsp_code=%d rsp_cfg=%d", rsp_code, rsp_cfg );
+        create_rsp_param.local_mdep_id = p_data->dch_create_ind.local_mdep_id;
+        create_rsp_param.mdl_id = p_data->dch_create_ind.mdl_id;
+        create_rsp_param.rsp_code = rsp_code;
+        create_rsp_param.cfg_rsp = rsp_cfg;
+        BTA_HlDchCreateRsp(p_mcb->mcl_handle, &create_rsp_param);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btif_hl_proc_dch_open_ind
+**
+** Description      Process the DCH open indication
+**
+** Returns          Nothing
+**
+*******************************************************************************/
+static void btif_hl_proc_dch_open_ind(tBTA_HL *p_data)
+
+{
+    btif_hl_mdl_cb_t         *p_dcb;
+    UINT8                    orig_app_idx, mcl_idx, mdl_idx, mdep_cfg_idx;
+    BOOLEAN close_dch = FALSE;
+
+    BTIF_TRACE_DEBUG("%s", __FUNCTION__);
+
+    // Find the correct app_idx based on the mdep_id;
+    btif_hl_find_app_idx_using_mdepId(p_data->dch_open_ind.local_mdep_id,&orig_app_idx);
+
+    if (btif_hl_find_mcl_idx_using_app_idx(p_data->dch_open_ind.mcl_handle, orig_app_idx, &mcl_idx ))
+    {
+        if (btif_hl_find_avail_mdl_idx(orig_app_idx, mcl_idx, &mdl_idx))
+        {
+            p_dcb = BTIF_HL_GET_MDL_CB_PTR(orig_app_idx, mcl_idx, mdl_idx);
+
+            if (btif_hl_find_mdep_cfg_idx(orig_app_idx, p_data->dch_open_ind.local_mdep_id, &mdep_cfg_idx))
+            {
+                p_dcb->in_use               = TRUE;
+                p_dcb->mdl_handle           =  p_data->dch_open_ind.mdl_handle;
+                p_dcb->local_mdep_cfg_idx   = mdep_cfg_idx;
+                p_dcb->local_mdep_id        = p_data->dch_open_ind.local_mdep_id;
+                p_dcb->mdl_id               = p_data->dch_open_ind.mdl_id;
+                p_dcb->dch_mode             = p_data->dch_open_ind.dch_mode;
+                p_dcb->dch_mode             = p_data->dch_open_ind.dch_mode;
+                p_dcb->is_the_first_reliable = p_data->dch_open_ind.first_reliable;
+                p_dcb->mtu                  = p_data->dch_open_ind.mtu;
+
+                if(btif_hl_find_channel_id_using_mdl_id(orig_app_idx,p_dcb->mdl_id , &p_dcb->channel_id))
+                {
+                    BTIF_TRACE_DEBUG(" app_idx=%d mcl_idx=%d mdl_idx=%d channel_id=%d",
+                                        orig_app_idx, mcl_idx, mdl_idx, p_dcb->channel_id  );
+                    if (!btif_hl_create_socket(orig_app_idx, mcl_idx, mdl_idx))
+                    {
+                        BTIF_TRACE_ERROR("Unable to create socket");
+                        close_dch = TRUE;
+                    }
+                }
+                else
+                {
+                    BTIF_TRACE_ERROR("Unable find channel id for mdl_id=0x%x", p_dcb->mdl_id  );
+                    close_dch = TRUE;
+                }
+            }
+            else
+            {
+                BTIF_TRACE_ERROR("INVALID_LOCAL_MDEP_ID mdep_id=%d",p_data->dch_open_cfm.local_mdep_id);
+                close_dch = TRUE;
+            }
+
+            if (close_dch)
+                btif_hl_clean_mdl_cb(p_dcb);
+        }
+        else
+            close_dch = TRUE;
+    }
+    else
+        close_dch = TRUE;
+
+    if (close_dch)
+        BTA_HlDchClose(p_data->dch_open_cfm.mdl_handle);
+}
+
+/*******************************************************************************
+**
+** Function         btif_hl_proc_dch_open_cfm
+**
+** Description      Process the DCH close confirmation
+**
+** Returns          Nothing
+**
+*******************************************************************************/
+static BOOLEAN btif_hl_proc_dch_open_cfm(tBTA_HL *p_data)
+
+{
+    btif_hl_mdl_cb_t            *p_dcb;
+    btif_hl_pending_chan_cb_t   *p_pcb;
+    UINT8                    app_idx, mcl_idx, mdl_idx, mdep_cfg_idx;
+    BOOLEAN                  status = FALSE;
+    BOOLEAN                  close_dch = FALSE;
+
+    BTIF_TRACE_DEBUG("%s", __FUNCTION__);
+
+    // Find the correct app_idx based on the mdep_id;
+    btif_hl_find_app_idx_using_mdepId(p_data->dch_open_cfm.local_mdep_id,&app_idx);
+
+    if (btif_hl_find_mcl_idx_using_app_idx(p_data->dch_open_cfm.mcl_handle, app_idx, &mcl_idx ))
+    {
+        p_pcb = BTIF_HL_GET_PCB_PTR(app_idx, mcl_idx);
+
+        if (btif_hl_find_avail_mdl_idx(app_idx, mcl_idx, &mdl_idx))
+        {
+            p_dcb = BTIF_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx);
+
+            if (btif_hl_find_mdep_cfg_idx(app_idx, p_data->dch_open_cfm.local_mdep_id, &mdep_cfg_idx))
+            {
+                p_dcb->in_use               = TRUE;
+                p_dcb->mdl_handle           = p_data->dch_open_cfm.mdl_handle;
+                p_dcb->local_mdep_cfg_idx   = mdep_cfg_idx;
+                p_dcb->local_mdep_id        = p_data->dch_open_cfm.local_mdep_id;
+                p_dcb->mdl_id               = p_data->dch_open_cfm.mdl_id;
+                p_dcb->dch_mode             = p_data->dch_open_cfm.dch_mode;
+                p_dcb->is_the_first_reliable= p_data->dch_open_cfm.first_reliable;
+                p_dcb->mtu                  = p_data->dch_open_cfm.mtu;
+                p_dcb->channel_id           = p_pcb->channel_id;
+
+                BTIF_TRACE_DEBUG("app_idx=%d mcl_idx=%d mdl_idx=%d",  app_idx, mcl_idx, mdl_idx  );
+                btif_hl_send_setup_connecting_cb(app_idx, mcl_idx);
+                if (btif_hl_create_socket(app_idx, mcl_idx, mdl_idx))
+                {
+                    status = TRUE;
+                    BTIF_TRACE_DEBUG("app_idx=%d mcl_idx=%d mdl_idx=%d p_dcb->channel_id=0x%08x",
+                                      app_idx, mcl_idx, mdl_idx, p_dcb->channel_id);
+                    btif_hl_clean_pcb(p_pcb);
+                }
+                else
+                {
+                    BTIF_TRACE_ERROR("Unable to create socket");
+                    close_dch = TRUE;
+                }
+            }
+            else
+            {
+                BTIF_TRACE_ERROR("INVALID_LOCAL_MDEP_ID mdep_id=%d",p_data->dch_open_cfm.local_mdep_id);
+                close_dch = TRUE;
+            }
+
+            if (close_dch)
+            {
+                btif_hl_clean_mdl_cb(p_dcb);
+                BTA_HlDchClose(p_data->dch_open_cfm.mdl_handle);
+            }
+        }
+    }
+
+    return status;
+}
+/*******************************************************************************
+**
+** Function         btif_hl_proc_dch_reconnect_cfm
+**
+** Description      Process the DCH reconnect indication
+**
+** Returns          Nothing
+**
+*******************************************************************************/
+static BOOLEAN btif_hl_proc_dch_reconnect_cfm(tBTA_HL *p_data)
+{
+    btif_hl_mdl_cb_t            *p_dcb;
+    btif_hl_pending_chan_cb_t   *p_pcb;
+    UINT8                    app_idx, mcl_idx, mdl_idx, mdep_cfg_idx;
+    BOOLEAN                  status = FALSE;
+    BOOLEAN                  close_dch = FALSE;
+
+    BTIF_TRACE_DEBUG("%s", __FUNCTION__);
+
+    btif_hl_find_app_idx_using_mdepId(p_data->dch_reconnect_cfm.local_mdep_id,&app_idx);
+
+    if (btif_hl_find_mcl_idx_using_app_idx(p_data->dch_reconnect_cfm.mcl_handle, app_idx, &mcl_idx ))
+    {
+        p_pcb = BTIF_HL_GET_PCB_PTR(app_idx, mcl_idx);
+
+        if (btif_hl_find_avail_mdl_idx(app_idx, mcl_idx, &mdl_idx))
+        {
+            p_dcb = BTIF_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx);
+
+            if (btif_hl_find_mdep_cfg_idx(app_idx, p_data->dch_reconnect_cfm.local_mdep_id, &mdep_cfg_idx))
+            {
+                p_dcb->in_use               = TRUE;
+                p_dcb->mdl_handle           = p_data->dch_reconnect_cfm.mdl_handle;
+                p_dcb->local_mdep_cfg_idx   = mdep_cfg_idx;
+                p_dcb->local_mdep_id        = p_data->dch_reconnect_cfm.local_mdep_id;
+                p_dcb->mdl_id               = p_data->dch_reconnect_cfm.mdl_id;
+                p_dcb->dch_mode             = p_data->dch_reconnect_cfm.dch_mode;
+                p_dcb->is_the_first_reliable= p_data->dch_reconnect_cfm.first_reliable;
+                p_dcb->mtu                  = p_data->dch_reconnect_cfm.mtu;
+                p_dcb->channel_id           = p_pcb->channel_id;
+
+                BTIF_TRACE_DEBUG("app_idx=%d mcl_idx=%d mdl_idx=%d",  app_idx, mcl_idx, mdl_idx  );
+                btif_hl_send_setup_connecting_cb(app_idx, mcl_idx);
+                if (btif_hl_create_socket(app_idx, mcl_idx, mdl_idx))
+                {
+                    status = TRUE;
+                    BTIF_TRACE_DEBUG("app_idx=%d mcl_idx=%d mdl_idx=%d p_dcb->channel_id=0x%08x",
+                                      app_idx, mcl_idx, mdl_idx, p_dcb->channel_id);
+                    btif_hl_clean_pcb(p_pcb);
+                }
+                else
+                {
+                    BTIF_TRACE_ERROR("Unable to create socket");
+                    close_dch = TRUE;
+                }
+            }
+            else
+            {
+                BTIF_TRACE_ERROR("INVALID_LOCAL_MDEP_ID mdep_id=%d",p_data->dch_open_cfm.local_mdep_id);
+                close_dch = TRUE;
+            }
+
+            if (close_dch)
+            {
+                btif_hl_clean_mdl_cb(p_dcb);
+                BTA_HlDchClose(p_data->dch_reconnect_cfm.mdl_handle);
+            }
+        }
+    }
+
+    return status;
+
+}
+/*******************************************************************************
+**
+** Function         btif_hl_proc_dch_reconnect_ind
+**
+** Description      Process the DCH reconnect indication
+**
+** Returns          Nothing
+**
+*******************************************************************************/
+static void btif_hl_proc_dch_reconnect_ind(tBTA_HL *p_data)
+
+{
+    btif_hl_app_cb_t        *p_acb;
+    btif_hl_mdl_cb_t        *p_dcb;
+    UINT8                   app_idx, mcl_idx, mdl_idx, mdep_cfg_idx;
+    BOOLEAN                 close_dch = FALSE;
+
+    BTIF_TRACE_DEBUG("%s", __FUNCTION__);
+
+    // Find the correct app_idx based on the mdep_id;
+    btif_hl_find_app_idx_using_mdepId(p_data->dch_reconnect_ind.local_mdep_id,&app_idx);
+
+    if (btif_hl_find_mcl_idx_using_app_idx(p_data->dch_reconnect_ind.mcl_handle, app_idx, &mcl_idx ))
+    {
+        p_acb = BTIF_HL_GET_APP_CB_PTR(app_idx);
+        BTIF_TRACE_DEBUG("btif_hl_proc_dch_reconnect_ind: app_idx = %d, mcl_idx = %d",
+                                app_idx, mcl_idx);
+
+        if (btif_hl_find_avail_mdl_idx(app_idx, mcl_idx, &mdl_idx))
+        {
+            p_dcb =BTIF_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx);
+
+            if (btif_hl_find_mdep_cfg_idx(app_idx, p_data->dch_reconnect_ind.local_mdep_id, &mdep_cfg_idx))
+            {
+                p_dcb->in_use               = TRUE;
+                p_dcb->mdl_handle           = p_data->dch_reconnect_ind.mdl_handle;
+                p_dcb->local_mdep_cfg_idx   = mdep_cfg_idx;
+                p_dcb->local_mdep_id        = p_data->dch_reconnect_ind.local_mdep_id;
+                p_dcb->mdl_id               = p_data->dch_reconnect_ind.mdl_id;
+                p_dcb->dch_mode             = p_data->dch_reconnect_ind.dch_mode;
+                p_dcb->dch_mode             = p_data->dch_reconnect_ind.dch_mode;
+                p_dcb->is_the_first_reliable= p_data->dch_reconnect_ind.first_reliable;
+                p_dcb->mtu                  = p_data->dch_reconnect_ind.mtu;
+                p_dcb->channel_id           = btif_hl_get_next_channel_id(p_acb->app_id);
+
+                BTIF_TRACE_DEBUG(" app_idx=%d mcl_idx=%d mdl_idx=%d channel_id=%d",
+                                  app_idx, mcl_idx, mdl_idx, p_dcb->channel_id  );
+                if (!btif_hl_create_socket(app_idx, mcl_idx, mdl_idx))
+                {
+                    BTIF_TRACE_ERROR("Unable to create socket");
+                    close_dch = TRUE;
+                }
+            }
+            else
+            {
+                BTIF_TRACE_ERROR("INVALID_LOCAL_MDEP_ID mdep_id=%d",p_data->dch_open_cfm.local_mdep_id);
+                close_dch = TRUE;
+            }
+
+            if (close_dch)
+                btif_hl_clean_mdl_cb(p_dcb);
+        }
+        else
+            close_dch = TRUE;
+    }
+    else
+        close_dch = TRUE;
+
+    if (close_dch)
+        BTA_HlDchClose(p_data->dch_reconnect_ind.mdl_handle);
+
+}
+
+/*******************************************************************************
+**
+** Function         btif_hl_proc_dch_close_ind
+**
+** Description      Process the DCH close indication
+**
+** Returns          Nothing
+**
+*******************************************************************************/
+static void btif_hl_proc_dch_close_ind(tBTA_HL *p_data)
+
+{
+    btif_hl_mdl_cb_t         *p_dcb;
+    btif_hl_mcl_cb_t         *p_mcb;
+    UINT8                   app_idx, mcl_idx, mdl_idx;
+
+    BTIF_TRACE_DEBUG("%s", __FUNCTION__);
+    if (btif_hl_find_mdl_idx_using_handle(p_data->dch_close_ind.mdl_handle,
+                                          &app_idx, &mcl_idx, &mdl_idx ))
+    {
+        p_dcb = BTIF_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx);
+        btif_hl_release_socket(app_idx,mcl_idx, mdl_idx);
+        btif_hl_send_setup_disconnected_cb(app_idx, mcl_idx);
+        p_mcb =  BTIF_HL_GET_MCL_CB_PTR(app_idx,mcl_idx);
+        btif_hl_clean_mdl_cb(p_dcb);
+        if (!btif_hl_num_dchs_in_use(p_mcb->mcl_handle))
+            btif_hl_start_cch_timer(app_idx, mcl_idx);
+        BTIF_TRACE_DEBUG("remote DCH close success mdl_idx=%d", mdl_idx);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btif_hl_proc_dch_close_cfm
+**
+** Description      Process the DCH reconnect confirmation
+**
+** Returns          Nothing
+**
+*******************************************************************************/
+static void btif_hl_proc_dch_close_cfm(tBTA_HL *p_data)
+
+{
+    btif_hl_mdl_cb_t         *p_dcb;
+    btif_hl_mcl_cb_t         *p_mcb;
+    UINT8                   app_idx, mcl_idx, mdl_idx;
+
+    BTIF_TRACE_DEBUG("%s", __FUNCTION__);
+    if (btif_hl_find_mdl_idx_using_handle(p_data->dch_close_cfm.mdl_handle,
+                                          &app_idx, &mcl_idx, &mdl_idx ))
+    {
+        p_dcb = BTIF_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx);
+        btif_hl_release_socket(app_idx,mcl_idx,mdl_idx);
+        btif_hl_clean_mdl_cb(p_dcb);
+        p_mcb =  BTIF_HL_GET_MCL_CB_PTR(app_idx,mcl_idx);
+        if (!btif_hl_num_dchs_in_use(p_mcb->mcl_handle))
+            btif_hl_start_cch_timer(app_idx, mcl_idx);
+        BTIF_TRACE_DEBUG(" local DCH close success mdl_idx=%d", mdl_idx);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btif_hl_proc_abort_ind
+**
+** Description      Process the abort indicaiton
+**
+** Returns          Nothing
+**
+*******************************************************************************/
+static void btif_hl_proc_abort_ind(tBTA_HL_MCL_HANDLE mcl_handle){
+
+    BTIF_TRACE_DEBUG("%s", __FUNCTION__ );
+    btif_hl_app_cb_t  *p_acb;
+    UINT8 i,j;
+
+    for (i=0; i<BTA_HL_NUM_APPS; i++)
+    {
+        p_acb =BTIF_HL_GET_APP_CB_PTR(i);
+        for (j=0; j < BTA_HL_NUM_MCLS ; j++)
+        {
+            if (p_acb->mcb[j].in_use)
+                BTIF_TRACE_DEBUG("btif_hl_find_mcl_idx_using_handle: app_idx=%d,mcl_idx =%d mcl_handle=%d",i,j,p_acb->mcb[j].mcl_handle);
+            if (p_acb->mcb[j].in_use &&
+                (p_acb->mcb[j].mcl_handle == mcl_handle))
+            {
+                btif_hl_stop_cch_timer(i, j);
+                btif_hl_send_setup_disconnected_cb(i, j);
+                btif_hl_clean_mcl_cb(i, j);
+            }
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btif_hl_proc_abort_cfm
+**
+** Description      Process the abort confirmation
+**
+** Returns          Nothing
+**
+*******************************************************************************/
+static void btif_hl_proc_abort_cfm(tBTA_HL_MCL_HANDLE mcl_handle){
+    BTIF_TRACE_DEBUG("%s", __FUNCTION__ );
+    btif_hl_app_cb_t  *p_acb;
+    UINT8 i,j;
+
+    for (i=0; i<BTA_HL_NUM_APPS; i++)
+    {
+        p_acb =BTIF_HL_GET_APP_CB_PTR(i);
+        for (j=0; j < BTA_HL_NUM_MCLS ; j++)
+        {
+            if (p_acb->mcb[j].in_use)
+                BTIF_TRACE_DEBUG("btif_hl_find_mcl_idx_using_handle: app_idx=%d,mcl_idx =%d mcl_handle=%d",i,j,p_acb->mcb[j].mcl_handle);
+            if (p_acb->mcb[j].in_use &&
+                (p_acb->mcb[j].mcl_handle == mcl_handle))
+            {
+                btif_hl_stop_cch_timer(i, j);
+                btif_hl_send_setup_disconnected_cb(i, j);
+                btif_hl_clean_mcl_cb(i, j);
+            }
+        }
+    }
+
+}
+
+/*******************************************************************************
+**
+** Function         btif_hl_proc_send_data_cfm
+**
+** Description      Process the send data confirmation
+**
+** Returns          Nothing
+**
+*******************************************************************************/
+static void btif_hl_proc_send_data_cfm(tBTA_HL_MDL_HANDLE mdl_handle,
+                                       tBTA_HL_STATUS status){
+    UINT8                   app_idx,mcl_idx, mdl_idx;
+    btif_hl_mdl_cb_t         *p_dcb;
+    UNUSED(status);
+
+    BTIF_TRACE_DEBUG("%s", __FUNCTION__);
+    if (btif_hl_find_mdl_idx_using_handle(mdl_handle,
+                                          &app_idx, &mcl_idx, &mdl_idx ))
+    {
+        p_dcb = BTIF_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx);
+        osi_free_and_reset((void **)&p_dcb->p_tx_pkt);
+        BTIF_TRACE_DEBUG("send success free p_tx_pkt tx_size=%d",
+                         p_dcb->tx_size);
+        p_dcb->tx_size = 0;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btif_hl_proc_dch_cong_ind
+**
+** Description      Process the DCH congestion change indication
+**
+** Returns          Nothing
+**
+*******************************************************************************/
+static void btif_hl_proc_dch_cong_ind(tBTA_HL *p_data)
+
+{
+    btif_hl_mdl_cb_t         *p_dcb;
+    UINT8                   app_idx, mcl_idx, mdl_idx;
+
+    BTIF_TRACE_DEBUG("btif_hl_proc_dch_cong_ind");
+
+    if (btif_hl_find_mdl_idx_using_handle(p_data->dch_cong_ind.mdl_handle, &app_idx, &mcl_idx, &mdl_idx))
+    {
+        p_dcb =BTIF_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx);
+        p_dcb->cong = p_data->dch_cong_ind.cong;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btif_hl_proc_reg_request
+**
+** Description      Process registration request
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btif_hl_proc_reg_request(UINT8 app_idx, UINT8  app_id,
+                                     tBTA_HL_REG_PARAM *p_reg_param,
+                                     tBTA_HL_CBACK *p_cback){
+    UNUSED(p_cback);
+
+    BTIF_TRACE_DEBUG("%s app_idx=%d app_id=%d", __FUNCTION__, app_idx, app_id);
+
+    if(reg_counter >1)
+    {
+        BTIF_TRACE_DEBUG("btif_hl_proc_reg_request: calling uPDATE");
+        BTA_HlUpdate(app_id, p_reg_param,TRUE, btif_hl_cback);
+    }
+    else
+        BTA_HlRegister(app_id, p_reg_param, btif_hl_cback);
+}
+
+/*******************************************************************************
+**
+** Function         btif_hl_proc_cb_evt
+**
+** Description      Process HL callback events
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btif_hl_proc_cb_evt(UINT16 event, char* p_param){
+
+    btif_hl_evt_cb_t                *p_data = (btif_hl_evt_cb_t *)p_param;
+    bt_bdaddr_t                     bd_addr;
+    bthl_channel_state_t            state=BTHL_CONN_STATE_DISCONNECTED;
+    BOOLEAN                         send_chan_cb=TRUE;
+    tBTA_HL_REG_PARAM               reg_param;
+    btif_hl_app_cb_t                *p_acb;
+
+    BTIF_TRACE_DEBUG("%s event %d", __FUNCTION__, event);
+    btif_hl_display_calling_process_name();
+
+    switch (event)
+    {
+        case BTIF_HL_SEND_CONNECTED_CB:
+        case BTIF_HL_SEND_DISCONNECTED_CB:
+            if (p_data->chan_cb.cb_state == BTIF_HL_CHAN_CB_STATE_CONNECTED_PENDING)
+                state = BTHL_CONN_STATE_CONNECTED;
+            else if (p_data->chan_cb.cb_state == BTIF_HL_CHAN_CB_STATE_DISCONNECTED_PENDING)
+                state = BTHL_CONN_STATE_DISCONNECTED;
+            else
+                send_chan_cb = FALSE;
+
+            if (send_chan_cb)
+            {
+                btif_hl_copy_bda(&bd_addr, p_data->chan_cb.bd_addr);
+                BTIF_TRACE_DEBUG("state callbk: ch_id=0x%08x cb_state=%d state=%d  fd=%d",
+                                  p_data->chan_cb.channel_id,
+                                  p_data->chan_cb.cb_state,
+                                  state,  p_data->chan_cb.fd);
+                btif_hl_display_bt_bda(&bd_addr);
+                BTIF_HL_CALL_CBACK(bt_hl_callbacks, channel_state_cb,  p_data->chan_cb.app_id,
+                                   &bd_addr, p_data->chan_cb.mdep_cfg_index,
+                                   p_data->chan_cb.channel_id, state, p_data->chan_cb.fd );
+            }
+
+            break;
+        case BTIF_HL_REG_APP:
+            p_acb  = BTIF_HL_GET_APP_CB_PTR(p_data->reg.app_idx);
+            BTIF_TRACE_DEBUG("Rcv BTIF_HL_REG_APP app_idx=%d reg_pending=%d", p_data->reg.app_idx, p_acb->reg_pending);
+            if (btif_hl_get_state() == BTIF_HL_STATE_ENABLED && p_acb->reg_pending)
+            {
+                BTIF_TRACE_DEBUG("Rcv BTIF_HL_REG_APP reg_counter=%d",reg_counter);
+                p_acb->reg_pending = FALSE;
+                reg_param.dev_type = p_acb->dev_type;
+                reg_param.sec_mask = BTA_SEC_AUTHENTICATE | BTA_SEC_ENCRYPT;
+                reg_param.p_srv_name = p_acb->srv_name;
+                reg_param.p_srv_desp = p_acb->srv_desp;
+                reg_param.p_provider_name = p_acb->provider_name;
+                btif_hl_proc_reg_request (p_data->reg.app_idx, p_acb->app_id, &reg_param, btif_hl_cback);
+            }
+            else
+            {
+                BTIF_TRACE_DEBUG("reg request is processed state=%d reg_pending=%d", btif_hl_get_state(), p_acb->reg_pending);
+            }
+
+            break;
+
+        case BTIF_HL_UNREG_APP:
+            BTIF_TRACE_DEBUG("Rcv BTIF_HL_UNREG_APP app_idx=%d", p_data->unreg.app_idx );
+            p_acb = BTIF_HL_GET_APP_CB_PTR(p_data->unreg.app_idx);
+            if (btif_hl_get_state() == BTIF_HL_STATE_ENABLED)
+            {
+                if(reg_counter >= 1)
+                    BTA_HlUpdate(p_acb->app_id,NULL,FALSE,NULL);
+                else
+                    BTA_HlDeregister(p_acb->app_id, p_acb->app_handle);
+            }
+            break;
+        case BTIF_HL_UPDATE_MDL:
+            BTIF_TRACE_DEBUG("Rcv BTIF_HL_UPDATE_MDL app_idx=%d", p_data->update_mdl.app_idx );
+            p_acb = BTIF_HL_GET_APP_CB_PTR(p_data->update_mdl.app_idx);
+            break;
+
+        default:
+            BTIF_TRACE_ERROR("Unknown event %d", event);
+            break;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btif_hl_upstreams_evt
+**
+** Description      Process HL events
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btif_hl_upstreams_evt(UINT16 event, char* p_param){
+    tBTA_HL *p_data = (tBTA_HL *)p_param;
+    UINT8                 app_idx, mcl_idx;
+    btif_hl_app_cb_t      *p_acb;
+    btif_hl_mcl_cb_t      *p_mcb = NULL;
+    btif_hl_pend_dch_op_t  pending_op;
+    BOOLEAN status;
+
+    BTIF_TRACE_DEBUG("%s event %d", __FUNCTION__, event);
+    btif_hl_display_calling_process_name();
+    switch (event)
+    {
+        case BTA_HL_REGISTER_CFM_EVT:
+            BTIF_TRACE_DEBUG("Rcv BTA_HL_REGISTER_CFM_EVT");
+            BTIF_TRACE_DEBUG("app_id=%d app_handle=%d status=%d ",
+                              p_data->reg_cfm.app_id,
+                              p_data->reg_cfm.app_handle,
+                              p_data->reg_cfm.status );
+
+            btif_hl_proc_reg_cfm(p_data);
+            break;
+        case BTA_HL_SDP_INFO_IND_EVT:
+            BTIF_TRACE_DEBUG("Rcv BTA_HL_SDP_INFO_IND_EVT");
+            BTIF_TRACE_DEBUG("app_handle=%d ctrl_psm=0x%04x data_psm=0x%04x x_spec=%d mcap_sup_procs=0x%02x",
+                              p_data->sdp_info_ind.app_handle,
+                              p_data->sdp_info_ind.ctrl_psm,
+                              p_data->sdp_info_ind.data_psm,
+                              p_data->sdp_info_ind.data_x_spec,
+                              p_data->sdp_info_ind.mcap_sup_procs);
+            //btif_hl_proc_sdp_info_ind(p_data);
+            break;
+
+        case BTA_HL_DEREGISTER_CFM_EVT:
+            BTIF_TRACE_DEBUG("Rcv BTA_HL_DEREGISTER_CFM_EVT");
+            BTIF_TRACE_DEBUG("app_handle=%d status=%d ",
+                              p_data->dereg_cfm.app_handle,
+                              p_data->dereg_cfm.status );
+            btif_hl_proc_dereg_cfm(p_data);
+            break;
+
+        case BTA_HL_SDP_QUERY_CFM_EVT:
+            BTIF_TRACE_DEBUG("Rcv BTA_HL_SDP_QUERY_CFM_EVT");
+            BTIF_TRACE_DEBUG("app_handle=%d app_id =%d,status =%d",
+                              p_data->sdp_query_cfm.app_handle,p_data->sdp_query_cfm.app_id,
+                              p_data->sdp_query_cfm.status);
+
+            BTIF_TRACE_DEBUG("DB [%02x] [%02x] [%02x] [%02x] [%02x] [%02x]",
+                              p_data->sdp_query_cfm.bd_addr[0], p_data->sdp_query_cfm.bd_addr[1],
+                              p_data->sdp_query_cfm.bd_addr[2], p_data->sdp_query_cfm.bd_addr[3],
+                              p_data->sdp_query_cfm.bd_addr[4], p_data->sdp_query_cfm.bd_addr[5]);
+
+            if (p_data->sdp_query_cfm.status == BTA_HL_STATUS_OK)
+                status = btif_hl_proc_sdp_query_cfm(p_data);
+            else
+                status = FALSE;
+
+            if (!status)
+            {
+                BTIF_TRACE_DEBUG("BTA_HL_SDP_QUERY_CFM_EVT Status = %d",
+                                                        p_data->sdp_query_cfm.status);
+                if (btif_hl_find_app_idx_using_app_id(p_data->sdp_query_cfm.app_id, &app_idx))
+                {
+                    p_acb = BTIF_HL_GET_APP_CB_PTR(app_idx);
+                    if (btif_hl_find_mcl_idx(app_idx, p_data->sdp_query_cfm.bd_addr, &mcl_idx))
+                    {
+                        p_mcb = BTIF_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+                        if ( (p_mcb->cch_oper ==  BTIF_HL_CCH_OP_MDEP_FILTERING) ||
+                             (p_mcb->cch_oper == BTIF_HL_CCH_OP_DCH_OPEN) )
+                        {
+                            pending_op = p_mcb->pcb.op;
+                            switch (pending_op)
+                            {
+                                case BTIF_HL_PEND_DCH_OP_OPEN:
+                                    btif_hl_send_setup_disconnected_cb(app_idx, mcl_idx);
+                                    break;
+                                case BTIF_HL_PEND_DCH_OP_RECONNECT:
+                                case BTIF_HL_PEND_DCH_OP_DELETE_MDL:
+                                default:
+                                    break;
+                            }
+                            if (!p_mcb->is_connected)
+                                btif_hl_clean_mcl_cb(app_idx, mcl_idx);
+                        }
+                    }
+                }
+            }
+
+            break;
+
+        case BTA_HL_CCH_OPEN_CFM_EVT:
+            BTIF_TRACE_DEBUG("Rcv BTA_HL_CCH_OPEN_CFM_EVT");
+            BTIF_TRACE_DEBUG("app_id=%d,app_handle=%d mcl_handle=%d status =%d",
+                              p_data->cch_open_cfm.app_id,
+                              p_data->cch_open_cfm.app_handle,
+                              p_data->cch_open_cfm.mcl_handle,
+                              p_data->cch_open_cfm.status);
+            BTIF_TRACE_DEBUG("DB [%02x] [%02x] [%02x] [%02x] [%02x] [%02x]",
+                              p_data->cch_open_cfm.bd_addr[0], p_data->cch_open_cfm.bd_addr[1],
+                              p_data->cch_open_cfm.bd_addr[2], p_data->cch_open_cfm.bd_addr[3],
+                              p_data->cch_open_cfm.bd_addr[4], p_data->cch_open_cfm.bd_addr[5]);
+
+            if (p_data->cch_open_cfm.status == BTA_HL_STATUS_OK ||
+                        p_data->cch_open_cfm.status == BTA_HL_STATUS_DUPLICATE_CCH_OPEN)
+            {
+                status = btif_hl_proc_cch_open_cfm(p_data);
+            }
+            else
+            {
+                status = FALSE;
+            }
+
+            if (!status)
+            {
+                if (btif_hl_find_app_idx_using_app_id(p_data->cch_open_cfm.app_id, &app_idx))
+                {
+                    p_acb = BTIF_HL_GET_APP_CB_PTR(app_idx);
+                    if (btif_hl_find_mcl_idx(app_idx, p_data->cch_open_cfm.bd_addr, &mcl_idx))
+                    {
+                        p_mcb = BTIF_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+                        pending_op = p_mcb->pcb.op;
+                        switch (pending_op)
+                        {
+                            case BTIF_HL_PEND_DCH_OP_OPEN:
+                                btif_hl_send_setup_disconnected_cb(app_idx, mcl_idx);
+                                break;
+                            case BTIF_HL_PEND_DCH_OP_RECONNECT:
+                            case BTIF_HL_PEND_DCH_OP_DELETE_MDL:
+                            default:
+                                break;
+                        }
+                        btif_hl_clean_mcl_cb(app_idx, mcl_idx);
+                    }
+                }
+            }
+            break;
+
+        case BTA_HL_DCH_OPEN_CFM_EVT:
+            BTIF_TRACE_DEBUG("Rcv BTA_HL_DCH_OPEN_CFM_EVT");
+            BTIF_TRACE_DEBUG("mcl_handle=%d mdl_handle=0x%x status=%d ",
+                              p_data->dch_open_cfm.mcl_handle,
+                              p_data->dch_open_cfm.mdl_handle,
+                              p_data->dch_open_cfm.status);
+            BTIF_TRACE_DEBUG("first_reliable =%d dch_mode=%d local_mdep_id=%d mdl_id=%d mtu=%d",
+                              p_data->dch_open_cfm.first_reliable,
+                              p_data->dch_open_cfm.dch_mode,
+                              p_data->dch_open_cfm.local_mdep_id,
+                              p_data->dch_open_cfm.mdl_id,
+                              p_data->dch_open_cfm.mtu);
+            if (p_data->dch_open_cfm.status == BTA_HL_STATUS_OK)
+            {
+                status = btif_hl_proc_dch_open_cfm(p_data);
+            }
+            else
+            {
+                status = FALSE;
+            }
+
+            if (!status)
+            {
+                if (btif_hl_find_mcl_idx_using_handle(p_data->dch_open_cfm.mcl_handle,&app_idx, &mcl_idx))
+                {
+                    p_mcb = BTIF_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+                    pending_op = p_mcb->pcb.op;
+                    switch (pending_op)
+                    {
+                        case BTIF_HL_PEND_DCH_OP_OPEN:
+                            btif_hl_send_setup_disconnected_cb(app_idx, mcl_idx);
+                            break;
+                        case BTIF_HL_PEND_DCH_OP_RECONNECT:
+                        case BTIF_HL_PEND_DCH_OP_DELETE_MDL:
+                        default:
+                            break;
+                    }
+                }
+            }
+            break;
+
+        case BTA_HL_CCH_OPEN_IND_EVT:
+            BTIF_TRACE_DEBUG("Rcv BTA_HL_CCH_OPEN_IND_EVT");
+            BTIF_TRACE_DEBUG("app_handle=%d mcl_handle=%d",
+                              p_data->cch_open_ind.app_handle,
+                              p_data->cch_open_ind.mcl_handle);
+            BTIF_TRACE_DEBUG("DB [%02x] [%02x] [%02x] [%02x] [%02x] [%02x]",
+                              p_data->cch_open_ind.bd_addr[0], p_data->cch_open_ind.bd_addr[1],
+                              p_data->cch_open_ind.bd_addr[2], p_data->cch_open_ind.bd_addr[3],
+                              p_data->cch_open_ind.bd_addr[4], p_data->cch_open_ind.bd_addr[5]);
+
+            btif_hl_proc_cch_open_ind(p_data);
+            break;
+
+        case BTA_HL_DCH_CREATE_IND_EVT:
+            BTIF_TRACE_DEBUG("Rcv BTA_HL_DCH_CREATE_IND_EVT");
+            BTIF_TRACE_DEBUG("mcl_handle=%d",
+                              p_data->dch_create_ind.mcl_handle );
+            BTIF_TRACE_DEBUG("local_mdep_id =%d mdl_id=%d cfg=%d",
+                              p_data->dch_create_ind.local_mdep_id,
+                              p_data->dch_create_ind.mdl_id,
+                              p_data->dch_create_ind.cfg);
+            btif_hl_proc_create_ind(p_data);
+            break;
+
+        case BTA_HL_DCH_OPEN_IND_EVT:
+            BTIF_TRACE_DEBUG("Rcv BTA_HL_DCH_OPEN_IND_EVT");
+            BTIF_TRACE_DEBUG("mcl_handle=%d mdl_handle=0x%x",
+                              p_data->dch_open_ind.mcl_handle,
+                              p_data->dch_open_ind.mdl_handle );
+            BTIF_TRACE_DEBUG("first_reliable =%d dch_mode=%d local_mdep_id=%d mdl_id=%d mtu=%d",
+                              p_data->dch_open_ind.first_reliable,
+                              p_data->dch_open_ind.dch_mode,
+                              p_data->dch_open_ind.local_mdep_id,
+                              p_data->dch_open_ind.mdl_id,
+                              p_data->dch_open_ind.mtu);
+
+            btif_hl_proc_dch_open_ind(p_data);
+            break;
+
+        case BTA_HL_DELETE_MDL_IND_EVT:
+            BTIF_TRACE_DEBUG("Rcv BTA_HL_DELETE_MDL_IND_EVT");
+            BTIF_TRACE_DEBUG("mcl_handle=%d mdl_id=0x%x",
+                              p_data->delete_mdl_ind.mcl_handle,
+                              p_data->delete_mdl_ind.mdl_id);
+            break;
+
+        case BTA_HL_DELETE_MDL_CFM_EVT:
+            BTIF_TRACE_DEBUG("Rcv BTA_HL_DELETE_MDL_CFM_EVT");
+            BTIF_TRACE_DEBUG("mcl_handle=%d mdl_id=0x%x status=%d",
+                              p_data->delete_mdl_cfm.mcl_handle,
+                              p_data->delete_mdl_cfm.mdl_id,
+                              p_data->delete_mdl_cfm.status);
+
+            if (btif_hl_find_app_idx_using_deleted_mdl_id( p_data->delete_mdl_cfm.mdl_id,
+                                    &app_idx))
+            {
+                p_acb = BTIF_HL_GET_APP_CB_PTR(app_idx);
+                btif_hl_send_destroyed_cb(p_acb);
+                btif_hl_clean_delete_mdl(&p_acb->delete_mdl);
+            }
+            break;
+
+        case BTA_HL_DCH_RECONNECT_CFM_EVT:
+            BTIF_TRACE_DEBUG("Rcv BTA_HL_DCH_RECONNECT_CFM_EVT");
+            BTIF_TRACE_DEBUG("mcl_handle=%d mdl_handle=%d status=%d   ",
+                              p_data->dch_reconnect_cfm.mcl_handle,
+                              p_data->dch_reconnect_cfm.mdl_handle,
+                              p_data->dch_reconnect_cfm.status);
+            BTIF_TRACE_DEBUG("first_reliable =%d dch_mode=%d mdl_id=%d mtu=%d",
+                              p_data->dch_reconnect_cfm.first_reliable,
+                              p_data->dch_reconnect_cfm.dch_mode,
+                              p_data->dch_reconnect_cfm.mdl_id,
+                              p_data->dch_reconnect_cfm.mtu);
+
+            if (p_data->dch_reconnect_cfm.status == BTA_HL_STATUS_OK)
+            {
+                status = btif_hl_proc_dch_reconnect_cfm(p_data);
+            }
+            else
+            {
+                status = FALSE;
+            }
+
+            if (!status)
+            {
+                if (btif_hl_find_mcl_idx_using_handle(p_data->dch_open_cfm.mcl_handle,&app_idx, &mcl_idx))
+                {
+                    p_mcb = BTIF_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+                    pending_op = p_mcb->pcb.op;
+                    switch (pending_op)
+                    {
+                        case BTIF_HL_PEND_DCH_OP_OPEN:
+                            btif_hl_send_setup_disconnected_cb(app_idx, mcl_idx);
+                            break;
+                        case BTIF_HL_PEND_DCH_OP_RECONNECT:
+                        case BTIF_HL_PEND_DCH_OP_DELETE_MDL:
+                        default:
+                            break;
+                    }
+                }
+            }
+
+            break;
+
+        case BTA_HL_CCH_CLOSE_CFM_EVT:
+            BTIF_TRACE_DEBUG("Rcv BTA_HL_CCH_CLOSE_CFM_EVT");
+            BTIF_TRACE_DEBUG("mcl_handle=%d status =%d",
+                              p_data->cch_close_cfm.mcl_handle,
+                              p_data->cch_close_cfm.status);
+            if (p_data->cch_close_cfm.status == BTA_HL_STATUS_OK)
+            {
+                btif_hl_proc_cch_close_cfm(p_data);
+            }
+            break;
+
+        case BTA_HL_CCH_CLOSE_IND_EVT:
+            BTIF_TRACE_DEBUG("Rcv BTA_HL_CCH_CLOSE_IND_EVT");
+            BTIF_TRACE_DEBUG("mcl_handle =%d intentional_close=%s",
+                              p_data->cch_close_ind.mcl_handle,
+                              (p_data->cch_close_ind.intentional?"Yes":"No"));
+
+            btif_hl_proc_cch_close_ind(p_data);
+            break;
+
+        case BTA_HL_DCH_CLOSE_IND_EVT:
+            BTIF_TRACE_DEBUG("Rcv BTA_HL_DCH_CLOSE_IND_EVT");
+            BTIF_TRACE_DEBUG("mdl_handle=%d intentional_close=%s",
+                              p_data->dch_close_ind.mdl_handle,
+                              (p_data->dch_close_ind.intentional?"Yes":"No") );
+
+            btif_hl_proc_dch_close_ind(p_data);
+            break;
+
+        case BTA_HL_DCH_CLOSE_CFM_EVT:
+            BTIF_TRACE_DEBUG("Rcv BTA_HL_DCH_CLOSE_CFM_EVT");
+            BTIF_TRACE_DEBUG("mdl_handle=%d status=%d ",
+                              p_data->dch_close_cfm.mdl_handle,
+                              p_data->dch_close_cfm.status);
+
+            if (p_data->dch_close_cfm.status == BTA_HL_STATUS_OK)
+            {
+                btif_hl_proc_dch_close_cfm(p_data);
+            }
+            break;
+
+        case BTA_HL_DCH_ECHO_TEST_CFM_EVT:
+            BTIF_TRACE_DEBUG("Rcv BTA_HL_DCH_ECHO_TEST_CFM_EVT");
+            BTIF_TRACE_DEBUG("mcl_handle=%d    status=%d",
+                              p_data->echo_test_cfm.mcl_handle,
+                              p_data->echo_test_cfm.status );
+            /* not supported */
+            break;
+
+        case BTA_HL_DCH_RECONNECT_IND_EVT:
+            BTIF_TRACE_DEBUG("Rcv BTA_HL_DCH_RECONNECT_IND_EVT");
+
+            BTIF_TRACE_DEBUG("mcl_handle=%d mdl_handle=5d",
+                              p_data->dch_reconnect_ind.mcl_handle,
+                              p_data->dch_reconnect_ind.mdl_handle );
+            BTIF_TRACE_DEBUG("first_reliable =%d dch_mode=%d mdl_id=%d mtu=%d",
+                              p_data->dch_reconnect_ind.first_reliable,
+                              p_data->dch_reconnect_ind.dch_mode,
+                              p_data->dch_reconnect_ind.mdl_id,
+                              p_data->dch_reconnect_ind.mtu);
+
+            btif_hl_proc_dch_reconnect_ind(p_data);
+            break;
+
+        case BTA_HL_CONG_CHG_IND_EVT:
+            BTIF_TRACE_DEBUG("Rcv BTA_HL_CONG_CHG_IND_EVT");
+            BTIF_TRACE_DEBUG("mdl_handle=%d cong =%d",
+                              p_data->dch_cong_ind.mdl_handle,
+                              p_data->dch_cong_ind.cong);
+            btif_hl_proc_dch_cong_ind(p_data);
+            break;
+
+        case BTA_HL_DCH_ABORT_IND_EVT:
+            BTIF_TRACE_DEBUG("Rcv BTA_HL_DCH_ABORT_IND_EVT");
+            BTIF_TRACE_DEBUG("mcl_handle=%d",
+                              p_data->dch_abort_ind.mcl_handle );
+            btif_hl_proc_abort_ind(p_data->dch_abort_ind.mcl_handle);
+            break;
+        case BTA_HL_DCH_ABORT_CFM_EVT:
+            BTIF_TRACE_DEBUG("Rcv BTA_HL_DCH_ABORT_CFM_EVT");
+            BTIF_TRACE_DEBUG("mcl_handle=%d status =%d",
+                              p_data->dch_abort_cfm.mcl_handle,
+                              p_data->dch_abort_cfm.status);
+            if (p_data->dch_abort_cfm.status == BTA_HL_STATUS_OK)
+            {
+                btif_hl_proc_abort_cfm(p_data->dch_abort_ind.mcl_handle);
+            }
+            break;
+
+        case BTA_HL_DCH_SEND_DATA_CFM_EVT:
+            BTIF_TRACE_DEBUG("Rcv BTA_HL_DCH_SEND_DATA_CFM_EVT");
+            BTIF_TRACE_DEBUG("mdl_handle=0x%x status =%d",
+                              p_data->dch_send_data_cfm.mdl_handle,
+                              p_data->dch_send_data_cfm.status);
+            btif_hl_proc_send_data_cfm(p_data->dch_send_data_cfm.mdl_handle,
+                                       p_data->dch_send_data_cfm.status);
+            break;
+
+        case BTA_HL_DCH_RCV_DATA_IND_EVT:
+            BTIF_TRACE_DEBUG("Rcv BTA_HL_DCH_RCV_DATA_IND_EVT");
+            BTIF_TRACE_DEBUG("mdl_handle=0x%x ",
+                              p_data->dch_rcv_data_ind.mdl_handle);
+            /* do nothing here */
+            break;
+
+        default:
+            BTIF_TRACE_DEBUG("Unknown Event (0x%02x)...", event);
+            break;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btif_hl_cback
+**
+** Description      Callback function for HL events
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btif_hl_cback(tBTA_HL_EVT event, tBTA_HL *p_data){
+    bt_status_t status;
+    int param_len = 0;
+    BTIF_TRACE_DEBUG("%s event %d", __FUNCTION__, event);
+    btif_hl_display_calling_process_name();
+    switch (event)
+    {
+        case BTA_HL_REGISTER_CFM_EVT:
+            param_len = sizeof(tBTA_HL_REGISTER_CFM);
+            break;
+        case BTA_HL_SDP_INFO_IND_EVT:
+            param_len = sizeof(tBTA_HL_SDP_INFO_IND);
+            break;
+        case BTA_HL_DEREGISTER_CFM_EVT:
+            param_len = sizeof(tBTA_HL_DEREGISTER_CFM);
+            break;
+        case BTA_HL_SDP_QUERY_CFM_EVT:
+            param_len = sizeof(tBTA_HL_SDP_QUERY_CFM);
+            break;
+        case BTA_HL_CCH_OPEN_CFM_EVT:
+            param_len = sizeof(tBTA_HL_CCH_OPEN_CFM);
+            break;
+        case BTA_HL_DCH_OPEN_CFM_EVT:
+            param_len = sizeof(tBTA_HL_DCH_OPEN_CFM);
+            break;
+        case BTA_HL_CCH_OPEN_IND_EVT:
+            param_len = sizeof(tBTA_HL_CCH_OPEN_IND);
+            break;
+        case BTA_HL_DCH_CREATE_IND_EVT:
+            param_len = sizeof(tBTA_HL_DCH_CREATE_IND);
+            break;
+        case BTA_HL_DCH_OPEN_IND_EVT:
+            param_len = sizeof(tBTA_HL_DCH_OPEN_IND);
+            break;
+        case BTA_HL_DELETE_MDL_IND_EVT:
+            param_len = sizeof(tBTA_HL_MDL_IND);
+            break;
+        case BTA_HL_DELETE_MDL_CFM_EVT:
+            param_len = sizeof(tBTA_HL_MDL_CFM);
+            break;
+        case BTA_HL_DCH_RECONNECT_CFM_EVT:
+            param_len = sizeof(tBTA_HL_DCH_OPEN_CFM);
+            break;
+        case BTA_HL_CCH_CLOSE_CFM_EVT:
+            param_len = sizeof(tBTA_HL_MCL_CFM);
+            break;
+        case BTA_HL_CCH_CLOSE_IND_EVT:
+            param_len = sizeof(tBTA_HL_CCH_CLOSE_IND);
+            break;
+        case BTA_HL_DCH_CLOSE_IND_EVT:
+            param_len = sizeof(tBTA_HL_DCH_CLOSE_IND);
+            break;
+        case BTA_HL_DCH_CLOSE_CFM_EVT:
+            param_len = sizeof(tBTA_HL_MDL_CFM);
+            break;
+        case BTA_HL_DCH_ECHO_TEST_CFM_EVT:
+            param_len = sizeof(tBTA_HL_MCL_CFM);
+            break;
+        case BTA_HL_DCH_RECONNECT_IND_EVT:
+            param_len = sizeof(tBTA_HL_DCH_OPEN_IND);
+            break;
+        case BTA_HL_CONG_CHG_IND_EVT:
+            param_len = sizeof(tBTA_HL_DCH_CONG_IND);
+            break;
+        case BTA_HL_DCH_ABORT_IND_EVT:
+            param_len = sizeof(tBTA_HL_MCL_IND);
+            break;
+        case BTA_HL_DCH_ABORT_CFM_EVT:
+            param_len = sizeof(tBTA_HL_MCL_CFM);
+            break;
+        case BTA_HL_DCH_SEND_DATA_CFM_EVT:
+            param_len = sizeof(tBTA_HL_MDL_CFM);
+            break;
+        case BTA_HL_DCH_RCV_DATA_IND_EVT:
+            param_len = sizeof(tBTA_HL_MDL_IND);
+            break;
+        default:
+            param_len = sizeof(tBTA_HL_MDL_IND);
+            break;
+    }
+    status = btif_transfer_context(btif_hl_upstreams_evt, (uint16_t)event, (void*)p_data, param_len, NULL);
+
+    /* catch any failed context transfers */
+    ASSERTC(status == BT_STATUS_SUCCESS, "context transfer failed", status);
+}
+
+/*******************************************************************************
+**
+** Function         btif_hl_upstreams_ctrl_evt
+**
+** Description      Callback function for HL control events in the BTIF task context
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btif_hl_upstreams_ctrl_evt(UINT16 event, char* p_param){
+    tBTA_HL_CTRL *p_data = (tBTA_HL_CTRL *) p_param;
+    UINT8               i;
+    tBTA_HL_REG_PARAM   reg_param;
+    btif_hl_app_cb_t    *p_acb;
+
+    BTIF_TRACE_DEBUG("%s event %d", __FUNCTION__, event);
+    btif_hl_display_calling_process_name();
+
+    switch ( event )
+    {
+        case BTA_HL_CTRL_ENABLE_CFM_EVT:
+            BTIF_TRACE_DEBUG("Rcv BTA_HL_CTRL_ENABLE_CFM_EVT");
+            BTIF_TRACE_DEBUG("status=%d", p_data->enable_cfm.status);
+
+            if (p_data->enable_cfm.status == BTA_HL_STATUS_OK)
+            {
+                btif_hl_set_state(BTIF_HL_STATE_ENABLED);
+
+                for (i=0; i < BTA_HL_NUM_APPS ; i ++)
+                {
+                    p_acb = BTIF_HL_GET_APP_CB_PTR(i);
+                    if (p_acb->in_use && p_acb->reg_pending)
+                    {
+                        p_acb->reg_pending = FALSE;
+                        reg_param.dev_type = p_acb->dev_type;
+                        reg_param.sec_mask = BTA_SEC_AUTHENTICATE | BTA_SEC_ENCRYPT;
+                        reg_param.p_srv_name = p_acb->srv_name;
+                        reg_param.p_srv_desp = p_acb->srv_desp;
+                        reg_param.p_provider_name = p_acb->provider_name;
+
+                        BTIF_TRACE_DEBUG("Register pending app_id=%d", p_acb->app_id);
+                        btif_hl_proc_reg_request (i, p_acb->app_id, &reg_param, btif_hl_cback);
+                    }
+                }
+            }
+
+            break;
+        case BTA_HL_CTRL_DISABLE_CFM_EVT:
+            BTIF_TRACE_DEBUG("Rcv BTA_HL_CTRL_DISABLE_CFM_EVT");
+            BTIF_TRACE_DEBUG("status=%d",
+                              p_data->disable_cfm.status);
+
+            if (p_data->disable_cfm.status == BTA_HL_STATUS_OK)
+            {
+                for (size_t i = 0; i < BTA_HL_NUM_APPS; i++) {
+                    for (size_t j = 0; j < BTA_HL_NUM_MCLS; j++) {
+                        alarm_free(p_btif_hl_cb->acb[i].mcb[j].cch_timer);
+                    }
+                }
+                memset(p_btif_hl_cb, 0, sizeof(btif_hl_cb_t));
+                btif_hl_set_state(BTIF_HL_STATE_DISABLED);
+            }
+
+            break;
+        default:
+            break;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btif_hl_ctrl_cback
+**
+** Description      Callback function for HL control events
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btif_hl_ctrl_cback(tBTA_HL_CTRL_EVT event, tBTA_HL_CTRL *p_data){
+    bt_status_t status;
+    int param_len = 0;
+
+    BTIF_TRACE_DEBUG("%s event %d", __FUNCTION__, event);
+    btif_hl_display_calling_process_name();
+
+    switch ( event )
+    {
+        case BTA_HL_CTRL_ENABLE_CFM_EVT:
+        case BTA_HL_CTRL_DISABLE_CFM_EVT:
+            param_len = sizeof(tBTA_HL_CTRL_ENABLE_DISABLE);
+            break;
+        default:
+            break;
+    }
+
+    status = btif_transfer_context(btif_hl_upstreams_ctrl_evt, (uint16_t)event, (void*)p_data, param_len, NULL);
+    ASSERTC(status == BT_STATUS_SUCCESS, "context transfer failed", status);
+}
+/*******************************************************************************
+**
+** Function         connect_channel
+**
+** Description     connect a data channel
+**
+** Returns         bt_status_t
+**
+*******************************************************************************/
+static bt_status_t connect_channel(int app_id, bt_bdaddr_t *bd_addr, int mdep_cfg_index, int *channel_id){
+    UINT8                   app_idx, mcl_idx;
+    btif_hl_app_cb_t        *p_acb = NULL;
+    btif_hl_pending_chan_cb_t   *p_pcb = NULL;
+    btif_hl_mcl_cb_t        *p_mcb=NULL;
+    bt_status_t             status = BT_STATUS_SUCCESS;
+    tBTA_HL_DCH_OPEN_PARAM  dch_open;
+    BD_ADDR                 bda;
+    UINT8 i;
+
+    CHECK_BTHL_INIT();
+    BTIF_TRACE_EVENT("%s", __FUNCTION__);
+    btif_hl_display_calling_process_name();
+
+    for (i=0; i<6; i++)
+    {
+        bda[i] = (UINT8) bd_addr->address[i];
+    }
+    if (btif_hl_find_app_idx(((UINT8)app_id), &app_idx))
+    {
+        p_acb = BTIF_HL_GET_APP_CB_PTR(app_idx);
+        if (btif_hl_find_mcl_idx(app_idx, bda , &mcl_idx))
+        {
+            p_mcb = BTIF_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+            if (p_mcb->is_connected)
+            {
+                dch_open.ctrl_psm = p_mcb->ctrl_psm;
+                dch_open.local_mdep_id = p_acb->sup_feature.mdep[mdep_cfg_index].mdep_id;
+                BTIF_TRACE_DEBUG("connect_channel: app_idx =%d, mdep_cfg_indx =%d, mdep_id =%d app_id= %d", app_idx,
+                                                mdep_cfg_index, dch_open.local_mdep_id, app_id);
+                if (btif_hl_find_peer_mdep_id(p_acb->app_id, p_mcb->bd_addr,
+                                              p_acb->sup_feature.mdep[mdep_cfg_index].mdep_cfg.mdep_role,
+                                              p_acb->sup_feature.mdep[mdep_cfg_index].mdep_cfg.data_cfg[0].data_type, &dch_open.peer_mdep_id ))
+                {
+                    dch_open.local_cfg = p_acb->channel_type[mdep_cfg_index];
+                    if ((p_acb->sup_feature.mdep[mdep_cfg_index].mdep_cfg.mdep_role == BTA_HL_MDEP_ROLE_SOURCE)
+                        && !btif_hl_is_the_first_reliable_existed(app_idx,mcl_idx))
+                    {
+                        dch_open.local_cfg = BTA_HL_DCH_CFG_RELIABLE;
+                    }
+                    dch_open.sec_mask = (BTA_SEC_AUTHENTICATE | BTA_SEC_ENCRYPT);
+
+                    if( !btif_hl_dch_open(p_acb->app_id, bda, &dch_open,
+                                              mdep_cfg_index, BTIF_HL_PEND_DCH_OP_OPEN, channel_id ))
+                    {
+                        status = BT_STATUS_FAIL;
+                        BTIF_TRACE_EVENT("%s loc0 status = BT_STATUS_FAIL", __FUNCTION__);
+                    }
+                }
+                else
+                {
+                    p_mcb->cch_oper = BTIF_HL_CCH_OP_MDEP_FILTERING;
+
+                    p_pcb = BTIF_HL_GET_PCB_PTR(app_idx, mcl_idx);
+                    p_pcb->in_use = TRUE;
+                    p_pcb->mdep_cfg_idx = mdep_cfg_index;
+                    memcpy(p_pcb->bd_addr, bda, sizeof(BD_ADDR));
+                    p_pcb->op = BTIF_HL_PEND_DCH_OP_OPEN;
+                    BTA_HlSdpQuery(app_id,p_acb->app_handle, bda);
+                }
+            }
+            else
+            {
+                status = BT_STATUS_FAIL;
+            }
+        }
+        else
+        {
+            p_acb->filter.num_elems =1;
+            p_acb->filter.elem[0].data_type = p_acb->sup_feature.mdep[mdep_cfg_index].mdep_cfg.data_cfg[mdep_cfg_index].data_type;
+            if (p_acb->sup_feature.mdep[mdep_cfg_index].mdep_cfg.mdep_role == BTA_HL_MDEP_ROLE_SINK)
+                p_acb->filter.elem[0].peer_mdep_role = BTA_HL_MDEP_ROLE_SOURCE;
+            else
+                p_acb->filter.elem[0].peer_mdep_role = BTA_HL_MDEP_ROLE_SINK;
+
+            if ( !btif_hl_cch_open(p_acb->app_id, bda, 0, mdep_cfg_index,
+                                   BTIF_HL_PEND_DCH_OP_OPEN,
+                                   channel_id))
+            {
+                status = BT_STATUS_FAIL;
+            }
+        }
+    }
+    else
+    {
+        status = BT_STATUS_FAIL;
+    }
+
+    BTIF_TRACE_DEBUG("%s status=%d channel_id=0x%08x", __FUNCTION__, status, *channel_id);
+
+    return status;
+}
+/*******************************************************************************
+**
+** Function         destroy_channel
+**
+** Description      destroy a data channel
+**
+** Returns         bt_status_t
+**
+*******************************************************************************/
+static bt_status_t destroy_channel(int channel_id){
+    UINT8 app_idx, mcl_idx, mdl_cfg_idx, mdep_cfg_idx = 0;
+    bt_status_t status = BT_STATUS_SUCCESS;
+    btif_hl_mdl_cfg_t     *p_mdl;
+    btif_hl_mcl_cb_t     *p_mcb;
+    btif_hl_app_cb_t     *p_acb;
+
+    CHECK_BTHL_INIT();
+    BTIF_TRACE_EVENT("%s channel_id=0x%08x", __FUNCTION__, channel_id);
+    btif_hl_display_calling_process_name();
+
+    if (btif_hl_if_channel_setup_pending(channel_id, &app_idx, &mcl_idx))
+    {
+        btif_hl_dch_abort(app_idx, mcl_idx);
+    }
+    else
+    {
+        if (btif_hl_find_mdl_cfg_idx_using_channel_id(channel_id, &app_idx, &mdl_cfg_idx))
+ //       if(btif_hl_find_mdl_idx_using_channel_id(channel_id, &app_idx,&mcl_idx, &mdl_idx))
+        {
+            p_acb = BTIF_HL_GET_APP_CB_PTR(app_idx);
+            if (!p_acb->delete_mdl.active)
+            {
+                p_mdl =BTIF_HL_GET_MDL_CFG_PTR(app_idx, mdl_cfg_idx);
+                p_acb->delete_mdl.active = TRUE;
+                p_acb->delete_mdl.mdl_id = p_mdl->base.mdl_id;
+                p_acb->delete_mdl.channel_id = channel_id;
+                p_acb->delete_mdl.mdep_cfg_idx = p_mdl->extra.mdep_cfg_idx;
+                memcpy(p_acb->delete_mdl.bd_addr, p_mdl->base.peer_bd_addr,sizeof(BD_ADDR));
+
+                if (btif_hl_find_mcl_idx(app_idx, p_mdl->base.peer_bd_addr, &mcl_idx))
+                {
+                    p_mcb = BTIF_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+                    if (p_mcb->is_connected)
+                    {
+                        BTIF_TRACE_DEBUG("calling BTA_HlDeleteMdl mdl_id=%d",p_acb->delete_mdl.mdl_id );
+                        BTA_HlDeleteMdl(p_mcb->mcl_handle, p_acb->delete_mdl.mdl_id);
+                    }
+                    else
+                    {
+                        status = BT_STATUS_FAIL;
+                    }
+                }
+                else
+                {
+                    BTIF_TRACE_DEBUG("btif_hl_delete_mdl calling btif_hl_cch_open"  );
+                    mdep_cfg_idx = p_mdl->extra.mdep_cfg_idx;
+                    p_acb->filter.num_elems =1;
+                    p_acb->filter.elem[0].data_type = p_acb->sup_feature.mdep[mdep_cfg_idx].mdep_cfg.data_cfg[mdep_cfg_idx].data_type;
+                    if (p_acb->sup_feature.mdep[mdep_cfg_idx].mdep_cfg.mdep_role == BTA_HL_MDEP_ROLE_SINK)
+                        p_acb->filter.elem[0].peer_mdep_role = BTA_HL_MDEP_ROLE_SOURCE;
+                    else
+                        p_acb->filter.elem[0].peer_mdep_role = BTA_HL_MDEP_ROLE_SINK;
+                    if (btif_hl_cch_open(p_acb->app_id, p_acb->delete_mdl.bd_addr, 0,
+                                         mdep_cfg_idx,
+                                         BTIF_HL_PEND_DCH_OP_DELETE_MDL, NULL))
+                    {
+                        status = BT_STATUS_FAIL;
+                    }
+                }
+
+                if (  status == BT_STATUS_FAIL)
+                {
+                    /* fail for now  */
+                    btif_hl_clean_delete_mdl(&p_acb->delete_mdl);
+                }
+            }
+            else
+            {
+                status = BT_STATUS_BUSY;
+            }
+        }
+        else
+        {
+            status = BT_STATUS_FAIL;
+        }
+
+    }
+    return status;
+}
+/*******************************************************************************
+**
+** Function         unregister_application
+**
+** Description     unregister an HDP application
+**
+** Returns         bt_status_t
+**
+*******************************************************************************/
+static bt_status_t unregister_application(int app_id){
+    UINT8               app_idx;
+    int                 len;
+    bt_status_t         status = BT_STATUS_SUCCESS;
+    btif_hl_evt_cb_t    evt_param;
+
+    CHECK_BTHL_INIT();
+    BTIF_TRACE_EVENT("%s app_id=%d", __FUNCTION__, app_id);
+    btif_hl_display_calling_process_name();
+
+    if (btif_hl_find_app_idx(((UINT8)app_id), &app_idx))
+    {
+        evt_param.unreg.app_idx = app_idx;
+        reg_counter --;
+        len = sizeof(btif_hl_unreg_t);
+        status = btif_transfer_context (btif_hl_proc_cb_evt, BTIF_HL_UNREG_APP,
+                                        (char*) &evt_param, len, NULL);
+        ASSERTC(status == BT_STATUS_SUCCESS, "context transfer failed", status);
+    }
+    else
+    {
+        status  = BT_STATUS_FAIL;
+    }
+
+    BTIF_TRACE_DEBUG("de-reg return status=%d", status);
+    return status;
+}
+/*******************************************************************************
+**
+** Function         register_application
+**
+** Description     register an HDP application
+**
+** Returns         bt_status_t
+**
+*******************************************************************************/
+static bt_status_t register_application(bthl_reg_param_t *p_reg_param, int *app_id){
+    btif_hl_app_cb_t            *p_acb;
+    tBTA_HL_SUP_FEATURE         *p_sup;
+    tBTA_HL_MDEP_CFG            *p_cfg;
+    tBTA_HL_MDEP_DATA_TYPE_CFG  *p_data;
+    UINT8                       app_idx=0, i=0;
+    bthl_mdep_cfg_t             *p_mdep_cfg;
+    bt_status_t                 status = BT_STATUS_SUCCESS;
+    btif_hl_evt_cb_t            evt_param;
+    int                         len;
+
+    CHECK_BTHL_INIT();
+    BTIF_TRACE_EVENT("%s", __FUNCTION__);
+    btif_hl_display_calling_process_name();
+
+    if (btif_hl_get_state() == BTIF_HL_STATE_DISABLED)
+    {
+        btif_hl_init();
+        btif_hl_set_state(BTIF_HL_STATE_ENABLING);
+        BTA_HlEnable(btif_hl_ctrl_cback);
+    }
+
+    if (!btif_hl_find_avail_app_idx(&app_idx))
+    {
+        BTIF_TRACE_ERROR("Unable to allocate a new application control block");
+        return BT_STATUS_FAIL;
+    }
+
+    p_acb = BTIF_HL_GET_APP_CB_PTR(app_idx);
+    p_acb->in_use = TRUE;
+
+    p_acb->app_id = btif_hl_get_next_app_id();
+
+    if (p_reg_param->application_name != NULL )
+        strncpy(p_acb->application_name, p_reg_param->application_name, BTIF_HL_APPLICATION_NAME_LEN);
+
+    if (p_reg_param->provider_name != NULL )
+        strncpy(p_acb->provider_name, p_reg_param->provider_name, BTA_PROVIDER_NAME_LEN);
+
+    if (p_reg_param->srv_name != NULL )
+        strncpy(p_acb->srv_name, p_reg_param->srv_name, BTA_SERVICE_NAME_LEN);
+
+    if (p_reg_param->srv_desp != NULL )
+        strncpy(p_acb->srv_desp, p_reg_param->srv_desp, BTA_SERVICE_DESP_LEN);
+
+    p_sup = &p_acb->sup_feature;
+    p_sup->advertize_source_sdp = TRUE;
+    p_sup->echo_cfg.max_rx_apdu_size = BTIF_HL_ECHO_MAX_TX_RX_APDU_SIZE;
+    p_sup->echo_cfg.max_tx_apdu_size = BTIF_HL_ECHO_MAX_TX_RX_APDU_SIZE;
+    p_sup->num_of_mdeps = p_reg_param->number_of_mdeps;
+
+    for (i=0, p_mdep_cfg = p_reg_param->mdep_cfg ; i<  p_sup->num_of_mdeps; i++, p_mdep_cfg++  )
+    {
+        p_cfg = &p_sup->mdep[i].mdep_cfg;
+        p_cfg->num_of_mdep_data_types = 1;
+        p_data  = &p_cfg->data_cfg[0];
+
+        if ( !btif_hl_get_bta_mdep_role(p_mdep_cfg->mdep_role, &(p_cfg->mdep_role)))
+        {
+            BTIF_TRACE_ERROR("Invalid mdep_role=%d", p_mdep_cfg->mdep_role);
+            status = BT_STATUS_FAIL;
+            break;
+        }
+        else
+        {
+            if (p_cfg->mdep_role == BTA_HL_MDEP_ROLE_SINK )
+                p_sup->app_role_mask |= BTA_HL_MDEP_ROLE_MASK_SINK;
+            else
+                p_sup->app_role_mask |=  BTA_HL_MDEP_ROLE_MASK_SOURCE;
+
+            if ( (p_sup->app_role_mask & BTA_HL_MDEP_ROLE_MASK_SINK) &&
+                 (p_sup->app_role_mask & BTA_HL_MDEP_ROLE_MASK_SINK) )
+            {
+                p_acb->dev_type = BTA_HL_DEVICE_TYPE_DUAL;
+            }
+            else if ( p_sup->app_role_mask & BTA_HL_MDEP_ROLE_MASK_SINK )
+                p_acb->dev_type = BTA_HL_DEVICE_TYPE_SINK;
+            else
+
+                p_acb->dev_type = BTA_HL_DEVICE_TYPE_SOURCE;
+
+            p_data->data_type = (UINT16) p_mdep_cfg->data_type;
+            p_data->max_rx_apdu_size = btif_hl_get_max_rx_apdu_size(p_cfg->mdep_role, p_data->data_type);
+            p_data->max_tx_apdu_size = btif_hl_get_max_tx_apdu_size(p_cfg->mdep_role, p_data->data_type);
+
+            if (p_mdep_cfg->mdep_description != NULL )
+                strncpy(p_data->desp, p_mdep_cfg->mdep_description, BTA_SERVICE_DESP_LEN);
+
+            if ( !btif_hl_get_bta_channel_type(p_mdep_cfg->channel_type, &(p_acb->channel_type[i])))
+            {
+                BTIF_TRACE_ERROR("Invalid channel_type=%d", p_mdep_cfg->channel_type);
+                status = BT_STATUS_FAIL;
+                break;
+            }
+        }
+    }
+
+    if (status == BT_STATUS_SUCCESS)
+    {
+        *app_id = (int) p_acb->app_id;
+        evt_param.reg.app_idx = app_idx;
+        len = sizeof(btif_hl_reg_t);
+        p_acb->reg_pending = TRUE;
+        reg_counter++;
+        BTIF_TRACE_DEBUG("calling btif_transfer_context status=%d app_id=%d", status, *app_id);
+        status = btif_transfer_context (btif_hl_proc_cb_evt, BTIF_HL_REG_APP,
+                                        (char*) &evt_param, len, NULL);
+        ASSERTC(status == BT_STATUS_SUCCESS, "context transfer failed", status);
+
+    }
+    else
+    {
+        btif_hl_free_app_idx(app_idx);
+    }
+
+    BTIF_TRACE_DEBUG("register_application status=%d app_id=%d", status, *app_id);
+    return status;
+}
+
+/*******************************************************************************
+**
+** Function      btif_hl_save_mdl_cfg
+**
+** Description  Save the MDL configuration
+**
+** Returns      BOOLEAN
+**
+*******************************************************************************/
+BOOLEAN  btif_hl_save_mdl_cfg(UINT8 mdep_id, UINT8 item_idx,
+                              tBTA_HL_MDL_CFG *p_mdl_cfg){
+    btif_hl_mdl_cfg_t   *p_mdl=NULL;
+    BOOLEAN             success = FALSE;
+    btif_hl_app_cb_t    *p_acb;
+    btif_hl_mcl_cb_t    *p_mcb;
+    UINT8               app_idx, mcl_idx, len;
+    bt_status_t         bt_status;
+    btif_hl_evt_cb_t    evt_param;
+    int                 *p_channel_id;
+
+    BTIF_TRACE_DEBUG("%s mdep_id=%d item_idx=%d, local_mdep_id=%d mdl_id=0x%x dch_mode=%d",
+                      __FUNCTION__, mdep_id, item_idx, p_mdl_cfg->local_mdep_id,
+                      p_mdl_cfg->mdl_id, p_mdl_cfg->dch_mode );
+
+    if(btif_hl_find_app_idx_using_mdepId(mdep_id,&app_idx))
+    {
+        p_acb = BTIF_HL_GET_APP_CB_PTR(app_idx);
+        p_mdl = BTIF_HL_GET_MDL_CFG_PTR(app_idx, item_idx);
+        p_channel_id = BTIF_HL_GET_MDL_CFG_CHANNEL_ID_PTR(app_idx, item_idx);
+        if (p_mdl)
+        {
+            memcpy(&p_mdl->base, p_mdl_cfg, sizeof(tBTA_HL_MDL_CFG));
+            if (btif_hl_find_mcl_idx(app_idx, p_mdl->base.peer_bd_addr , &mcl_idx))
+            {
+                p_mcb = BTIF_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+                if (p_mcb->pcb.in_use)
+                    *p_channel_id = p_mcb->pcb.channel_id;
+                else
+                    *p_channel_id = btif_hl_get_next_channel_id(p_acb->app_id);
+                p_mdl->extra.mdep_cfg_idx = p_mcb->pcb.mdep_cfg_idx;
+                p_mdl->extra.data_type = p_acb->sup_feature.mdep[p_mcb->pcb.mdep_cfg_idx].mdep_cfg.data_cfg[0].data_type;
+
+                if (!btif_hl_find_peer_mdep_id(p_acb->app_id, p_mcb->bd_addr,
+                                               p_acb->sup_feature.mdep[p_mcb->pcb.mdep_cfg_idx].mdep_cfg.mdep_role,
+                                               p_acb->sup_feature.mdep[p_mcb->pcb.mdep_cfg_idx].mdep_cfg.data_cfg[0].data_type,
+                                               &p_mdl->extra.peer_mdep_id))
+                {
+                    p_mdl->extra.peer_mdep_id = BTA_HL_INVALID_MDEP_ID;
+                }
+                BTIF_TRACE_DEBUG("%s app_idx=%d item_idx=%d mld_id=0x%x",
+                                  __FUNCTION__, app_idx, item_idx, p_mdl->base.mdl_id);
+                evt_param.update_mdl.app_idx = app_idx;
+                len = sizeof(btif_hl_update_mdl_t);
+                BTIF_TRACE_DEBUG("send BTIF_HL_UPDATE_MDL event app_idx=%d  ",app_idx);
+                if ((bt_status = btif_transfer_context (btif_hl_proc_cb_evt, BTIF_HL_UPDATE_MDL,
+                                                        (char*) &evt_param, len, NULL)) == BT_STATUS_SUCCESS)
+                {
+                    success = TRUE;
+                }
+                ASSERTC(bt_status == BT_STATUS_SUCCESS, "context transfer failed", bt_status);
+            }
+        }
+    }
+    BTIF_TRACE_DEBUG("%s success=%d  ",__FUNCTION__, success );
+
+    return success;
+}
+
+/*******************************************************************************
+**
+** Function      btif_hl_delete_mdl_cfg
+**
+** Description  Delete the MDL configuration
+**
+** Returns      BOOLEAN
+**
+*******************************************************************************/
+BOOLEAN  btif_hl_delete_mdl_cfg(UINT8 mdep_id, UINT8 item_idx){
+    btif_hl_mdl_cfg_t     *p_mdl=NULL;
+    BOOLEAN             success = FALSE;
+    UINT8               app_idx, len;
+    bt_status_t         bt_status;
+    btif_hl_evt_cb_t    evt_param;
+
+    if(btif_hl_find_app_idx_using_mdepId(mdep_id,&app_idx))
+    {
+        p_mdl = BTIF_HL_GET_MDL_CFG_PTR(app_idx, item_idx);
+        if (p_mdl)
+        {
+            memset(p_mdl, 0, sizeof(btif_hl_mdl_cfg_t));
+            evt_param.update_mdl.app_idx = app_idx;
+            len = sizeof(btif_hl_update_mdl_t);
+            BTIF_TRACE_DEBUG("send BTIF_HL_UPDATE_MDL event app_idx=%d  ",app_idx);
+            if ((bt_status = btif_transfer_context (btif_hl_proc_cb_evt, BTIF_HL_UPDATE_MDL,
+                                                    (char*) &evt_param, len, NULL)) == BT_STATUS_SUCCESS)
+            {
+                success = TRUE;
+            }
+            ASSERTC(bt_status == BT_STATUS_SUCCESS, "context transfer failed", bt_status);
+        }
+    }
+
+    BTIF_TRACE_DEBUG("%s success=%d  ",__FUNCTION__, success );
+    return success;
+}
+
+/*******************************************************************************
+**
+** Function         init
+**
+** Description     initializes the hl interface
+**
+** Returns         bt_status_t
+**
+*******************************************************************************/
+static bt_status_t init( bthl_callbacks_t* callbacks ){
+    bt_status_t status = BT_STATUS_SUCCESS;
+
+    BTIF_TRACE_EVENT("%s", __FUNCTION__);
+    btif_hl_display_calling_process_name();
+    bt_hl_callbacks_cb = *callbacks;
+    bt_hl_callbacks = &bt_hl_callbacks_cb;
+    btif_hl_soc_thread_init();
+    reg_counter = 0;
+    return status;
+}
+/*******************************************************************************
+**
+** Function         cleanup
+**
+** Description      Closes the HL interface
+**
+** Returns          void
+**
+*******************************************************************************/
+static void  cleanup( void ){
+    BTIF_TRACE_EVENT("%s", __FUNCTION__);
+    btif_hl_display_calling_process_name();
+    if (bt_hl_callbacks)
+    {
+        btif_disable_service(BTA_HDP_SERVICE_ID);
+        bt_hl_callbacks = NULL;
+        reg_counter = 0;
+    }
+
+    btif_hl_disable();
+    btif_hl_close_select_thread();
+}
+#ifdef BLUETOOTH_RTK
+static const bthl_interface_t bthlInterface = {
+    .size = sizeof(bthl_interface_t),
+    .init = init,
+    .register_application = register_application,
+    .unregister_application = unregister_application,
+    .connect_channel = connect_channel,
+    .destroy_channel = destroy_channel,
+    .cleanup = cleanup,
+};
+#else
+static const bthl_interface_t bthlInterface = {
+    sizeof(bthl_interface_t),
+    init,
+    register_application,
+    unregister_application,
+    connect_channel,
+    destroy_channel,
+    cleanup,
+};
+#endif
+/*******************************************************************************
+**
+** Function         btif_hl_get_interface
+**
+** Description      Get the hl callback interface
+**
+** Returns          bthf_interface_t
+**
+*******************************************************************************/
+const bthl_interface_t *btif_hl_get_interface(){
+    BTIF_TRACE_EVENT("%s", __FUNCTION__);
+    return &bthlInterface;
+}
+
+/*******************************************************************************
+**
+** Function btif_hl_update_maxfd
+**
+** Description Update the max fd if the input fd is greater than the current max fd
+**
+** Returns int
+**
+*******************************************************************************/
+int btif_hl_update_maxfd(int max_org_s) {
+    int maxfd = max_org_s;
+
+    BTIF_TRACE_DEBUG("btif_hl_update_maxfd max_org_s= %d", max_org_s);
+    for (const list_node_t *node = list_begin(soc_queue);
+            node != list_end(soc_queue); node = list_next(node)) {
+        btif_hl_soc_cb_t *p_scb = list_node(node);
+        if (maxfd < p_scb->max_s) {
+            maxfd = p_scb->max_s;
+            BTIF_TRACE_DEBUG("btif_hl_update_maxfd maxfd=%d", maxfd);
+        }
+    }
+
+    BTIF_TRACE_DEBUG("btif_hl_update_maxfd final *p_max_s=%d", maxfd);
+    return maxfd;
+}
+/*******************************************************************************
+**
+** Function btif_hl_get_socket_state
+**
+** Description get socket state
+**
+** Returns btif_hl_soc_state_t
+**
+*******************************************************************************/
+btif_hl_soc_state_t btif_hl_get_socket_state(btif_hl_soc_cb_t *p_scb){
+    BTIF_TRACE_DEBUG("btif_hl_get_socket_state state=%d", p_scb->state);
+    return p_scb->state;
+}
+/*******************************************************************************
+**
+** Function btif_hl_set_socket_state
+**
+** Description set socket state
+**
+** Returns void
+**
+*******************************************************************************/
+void btif_hl_set_socket_state(btif_hl_soc_cb_t *p_scb, btif_hl_soc_state_t new_state){
+    BTIF_TRACE_DEBUG("btif_hl_set_socket_state %d---->%d", p_scb->state, new_state);
+    p_scb->state = new_state;
+}
+/*******************************************************************************
+**
+** Function btif_hl_release_mcl_sockets
+**
+** Description Release all sockets on the MCL
+**
+** Returns void
+**
+*******************************************************************************/
+void btif_hl_release_mcl_sockets(UINT8 app_idx, UINT8 mcl_idx){
+    UINT8               i;
+    btif_hl_mdl_cb_t    *p_dcb;
+    BOOLEAN             found= FALSE;
+    BTIF_TRACE_DEBUG("%s", __FUNCTION__);
+    for (i=0; i < BTA_HL_NUM_MDLS_PER_MCL ; i ++)
+    {
+        p_dcb = BTIF_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, i);
+        if (p_dcb && p_dcb->in_use && p_dcb->p_scb)
+        {
+            BTIF_TRACE_DEBUG("found socket for app_idx=%d mcl_id=%d, mdl_idx=%d", app_idx, mcl_idx, i);
+            btif_hl_set_socket_state (p_dcb->p_scb, BTIF_HL_SOC_STATE_W4_REL);
+            p_dcb->p_scb = NULL;
+            found = TRUE;
+        }
+    }
+    if (found)
+        btif_hl_select_close_connected();
+}
+/*******************************************************************************
+**
+** Function btif_hl_release_socket
+**
+** Description release a specified socket
+**
+** Returns void
+**
+*******************************************************************************/
+void btif_hl_release_socket(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx){
+    btif_hl_soc_cb_t       *p_scb = NULL;
+    btif_hl_mdl_cb_t      *p_dcb = BTIF_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx);
+
+    BTIF_TRACE_DEBUG("%s", __FUNCTION__);
+    BTIF_TRACE_DEBUG("app_idx=%d mcl_idx=%d mdl_idx=%d",  app_idx, mcl_idx, mdl_idx  );
+
+    if (p_dcb && p_dcb->p_scb)
+    {
+        p_scb = p_dcb->p_scb;
+        btif_hl_set_socket_state(p_scb,  BTIF_HL_SOC_STATE_W4_REL);
+        p_dcb->p_scb = NULL;
+        btif_hl_select_close_connected();
+    }
+}
+/*******************************************************************************
+**
+** Function btif_hl_create_socket
+**
+** Description create a socket
+**
+** Returns BOOLEAN
+**
+*******************************************************************************/
+BOOLEAN btif_hl_create_socket(UINT8 app_idx, UINT8 mcl_idx, UINT8 mdl_idx){
+    btif_hl_mcl_cb_t      *p_mcb = BTIF_HL_GET_MCL_CB_PTR(app_idx, mcl_idx);
+    btif_hl_mdl_cb_t      *p_dcb = BTIF_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx);
+    BOOLEAN               status = FALSE;
+
+    BTIF_TRACE_DEBUG("%s", __FUNCTION__);
+
+    if (p_dcb) {
+        btif_hl_soc_cb_t *p_scb =
+            (btif_hl_soc_cb_t *)osi_malloc(sizeof(btif_hl_soc_cb_t));
+        if (socketpair(AF_UNIX, SOCK_STREAM, 0, p_scb->socket_id) >= 0) {
+            BTIF_TRACE_DEBUG("socket id[0]=%d id[1]=%d",p_scb->socket_id[0], p_scb->socket_id[1] );
+            p_dcb->p_scb = p_scb;
+            p_scb->app_idx = app_idx;
+            p_scb->mcl_idx = mcl_idx;
+            p_scb->mdl_idx = mdl_idx;
+            p_scb->channel_id = p_dcb->channel_id;
+            p_scb->mdep_cfg_idx = p_dcb->local_mdep_cfg_idx;
+            memcpy(p_scb->bd_addr, p_mcb->bd_addr,sizeof(BD_ADDR));
+            btif_hl_set_socket_state(p_scb,  BTIF_HL_SOC_STATE_W4_ADD);
+            p_scb->max_s = p_scb->socket_id[1];
+            list_append(soc_queue, (void *)p_scb);
+            btif_hl_select_wakeup();
+            status = TRUE;
+        } else {
+            osi_free_and_reset((void **)&p_scb);
+        }
+    }
+
+    BTIF_TRACE_DEBUG("%s status=%d", __FUNCTION__, status);
+    return status;
+}
+/*******************************************************************************
+**
+** Function btif_hl_add_socket_to_set
+**
+** Description Add a socket
+**
+** Returns void
+**
+*******************************************************************************/
+void btif_hl_add_socket_to_set(fd_set *p_org_set) {
+    btif_hl_mdl_cb_t                *p_dcb = NULL;
+    btif_hl_mcl_cb_t                *p_mcb = NULL;
+    btif_hl_app_cb_t                *p_acb = NULL;
+    btif_hl_evt_cb_t                evt_param;
+    bt_status_t                     status;
+    int                             len;
+
+    BTIF_TRACE_DEBUG("entering %s",__FUNCTION__);
+
+    for (const list_node_t *node = list_begin(soc_queue);
+            node != list_end(soc_queue); node = list_next(node)) {
+        btif_hl_soc_cb_t *p_scb = list_node(node);
+
+        BTIF_TRACE_DEBUG("btif_hl_add_socket_to_set first p_scb=0x%x", p_scb);
+        if (btif_hl_get_socket_state(p_scb) == BTIF_HL_SOC_STATE_W4_ADD) {
+            btif_hl_set_socket_state(p_scb, BTIF_HL_SOC_STATE_W4_READ);
+            FD_SET(p_scb->socket_id[1], p_org_set);
+            BTIF_TRACE_DEBUG("found and set socket_id=%d is_set=%d",
+                    p_scb->socket_id[1], FD_ISSET(p_scb->socket_id[1], p_org_set));
+            p_mcb = BTIF_HL_GET_MCL_CB_PTR(p_scb->app_idx, p_scb->mcl_idx);
+            p_dcb = BTIF_HL_GET_MDL_CB_PTR(p_scb->app_idx, p_scb->mcl_idx, p_scb->mdl_idx);
+            p_acb = BTIF_HL_GET_APP_CB_PTR(p_scb->app_idx);
+            if (p_mcb && p_dcb) {
+                btif_hl_stop_timer_using_handle(p_mcb->mcl_handle);
+                evt_param.chan_cb.app_id = p_acb->app_id;
+                memcpy(evt_param.chan_cb.bd_addr, p_mcb->bd_addr, sizeof(BD_ADDR));
+                evt_param.chan_cb.channel_id = p_dcb->channel_id;
+                evt_param.chan_cb.fd = p_scb->socket_id[0];
+                evt_param.chan_cb.mdep_cfg_index = (int ) p_dcb->local_mdep_cfg_idx;
+                evt_param.chan_cb.cb_state = BTIF_HL_CHAN_CB_STATE_CONNECTED_PENDING;
+                len = sizeof(btif_hl_send_chan_state_cb_t);
+                status = btif_transfer_context (btif_hl_proc_cb_evt, BTIF_HL_SEND_CONNECTED_CB,
+                        (char*) &evt_param, len, NULL);
+                ASSERTC(status == BT_STATUS_SUCCESS, "context transfer failed", status);
+            }
+        }
+    }
+    BTIF_TRACE_DEBUG("leaving %s",__FUNCTION__);
+}
+
+/*******************************************************************************
+**
+** Function btif_hl_close_socket
+**
+** Description close a socket
+**
+** Returns void
+**
+*******************************************************************************/
+void btif_hl_close_socket( fd_set *p_org_set){
+    BTIF_TRACE_DEBUG("entering %s",__FUNCTION__);
+    for (const list_node_t *node = list_begin(soc_queue);
+            node != list_end(soc_queue); node = list_next(node)) {
+        btif_hl_soc_cb_t *p_scb = list_node(node);
+        if (btif_hl_get_socket_state(p_scb) == BTIF_HL_SOC_STATE_W4_REL) {
+            BTIF_TRACE_DEBUG("app_idx=%d mcl_id=%d, mdl_idx=%d",
+                    p_scb->app_idx, p_scb->mcl_idx, p_scb->mdl_idx);
+            btif_hl_set_socket_state(p_scb, BTIF_HL_SOC_STATE_IDLE);
+            if (p_scb->socket_id[1] != -1) {
+                FD_CLR(p_scb->socket_id[1] , p_org_set);
+                shutdown(p_scb->socket_id[1], SHUT_RDWR);
+                close(p_scb->socket_id[1]);
+
+                btif_hl_evt_cb_t evt_param;
+                evt_param.chan_cb.app_id = (int) btif_hl_get_app_id(p_scb->channel_id);
+                memcpy(evt_param.chan_cb.bd_addr, p_scb->bd_addr, sizeof(BD_ADDR));
+                evt_param.chan_cb.channel_id = p_scb->channel_id;
+                evt_param.chan_cb.fd = p_scb->socket_id[0];
+                evt_param.chan_cb.mdep_cfg_index = (int ) p_scb->mdep_cfg_idx;
+                evt_param.chan_cb.cb_state = BTIF_HL_CHAN_CB_STATE_DISCONNECTED_PENDING;
+                int len = sizeof(btif_hl_send_chan_state_cb_t);
+                bt_status_t status = btif_transfer_context (btif_hl_proc_cb_evt,
+                        BTIF_HL_SEND_DISCONNECTED_CB,
+                        (char*) &evt_param, len, NULL);
+                ASSERTC(status == BT_STATUS_SUCCESS, "context transfer failed", status);
+            }
+        }
+    }
+
+    for (const list_node_t *node = list_begin(soc_queue);
+        node != list_end(soc_queue); ) {
+        // We may mutate this list so we need keep track of
+        // the current node and only remove items behind.
+        btif_hl_soc_cb_t *p_scb = list_node(node);
+        BTIF_TRACE_DEBUG("p_scb=0x%x", p_scb);
+        node = list_next(node);
+        if (btif_hl_get_socket_state(p_scb) == BTIF_HL_SOC_STATE_IDLE) {
+            btif_hl_mdl_cb_t *p_dcb = BTIF_HL_GET_MDL_CB_PTR(p_scb->app_idx,
+                    p_scb->mcl_idx, p_scb->mdl_idx);
+            BTIF_TRACE_DEBUG("idle socket app_idx=%d mcl_id=%d, mdl_idx=%d p_dcb->in_use=%d",
+                    p_scb->app_idx, p_scb->mcl_idx, p_scb->mdl_idx, p_dcb->in_use);
+            list_remove(soc_queue, p_scb);
+            osi_free(p_scb);
+            p_dcb->p_scb = NULL;
+        }
+    }
+    BTIF_TRACE_DEBUG("leaving %s",__FUNCTION__);
+}
+
+/*******************************************************************************
+**
+** Function btif_hl_select_wakeup_callback
+**
+** Description Select wakup callback to add or close a socket
+**
+** Returns void
+**
+*******************************************************************************/
+
+void btif_hl_select_wakeup_callback( fd_set *p_org_set ,  int wakeup_signal){
+    BTIF_TRACE_DEBUG("entering %s wakeup_signal=0x%04x",__FUNCTION__, wakeup_signal);
+
+    if (wakeup_signal == btif_hl_signal_select_wakeup )
+    {
+        btif_hl_add_socket_to_set(p_org_set);
+    }
+    else if (wakeup_signal == btif_hl_signal_select_close_connected)
+    {
+        btif_hl_close_socket(p_org_set);
+    }
+    BTIF_TRACE_DEBUG("leaving %s",__FUNCTION__);
+}
+
+/*******************************************************************************
+**
+** Function btif_hl_select_monitor_callback
+**
+** Description Select monitor callback to check pending socket actions
+**
+** Returns void
+**
+*******************************************************************************/
+void btif_hl_select_monitor_callback(fd_set *p_cur_set ,fd_set *p_org_set) {
+    UNUSED(p_org_set);
+
+    BTIF_TRACE_DEBUG("entering %s",__FUNCTION__);
+
+    for (const list_node_t *node = list_begin(soc_queue);
+            node != list_end(soc_queue); node = list_next(node)) {
+        btif_hl_soc_cb_t *p_scb = list_node(node);
+        if (btif_hl_get_socket_state(p_scb) == BTIF_HL_SOC_STATE_W4_READ) {
+            if (FD_ISSET(p_scb->socket_id[1], p_cur_set)) {
+                BTIF_TRACE_DEBUG("read data state= BTIF_HL_SOC_STATE_W4_READ");
+                btif_hl_mdl_cb_t *p_dcb = BTIF_HL_GET_MDL_CB_PTR(p_scb->app_idx,
+                        p_scb->mcl_idx, p_scb->mdl_idx);
+                assert(p_dcb != NULL);
+                if (p_dcb->p_tx_pkt) {
+                    BTIF_TRACE_ERROR("Rcv new pkt but the last pkt is still not been"
+                            "  sent tx_size=%d", p_dcb->tx_size);
+                    osi_free_and_reset((void **)&p_dcb->p_tx_pkt);
+                }
+                p_dcb->p_tx_pkt = osi_malloc(p_dcb->mtu);
+                ssize_t r;
+                OSI_NO_INTR(r = recv(p_scb->socket_id[1], p_dcb->p_tx_pkt,
+                                     p_dcb->mtu, MSG_DONTWAIT));
+                if (r > 0) {
+                    BTIF_TRACE_DEBUG("btif_hl_select_monitor_callback send data r =%d", r);
+                    p_dcb->tx_size = r;
+                    BTIF_TRACE_DEBUG("btif_hl_select_monitor_callback send data tx_size=%d", p_dcb->tx_size );
+                    BTA_HlSendData(p_dcb->mdl_handle, p_dcb->tx_size);
+                } else {
+                    BTIF_TRACE_DEBUG("btif_hl_select_monitor_callback receive failed r=%d",r);
+                    BTA_HlDchClose(p_dcb->mdl_handle);
+                }
+            }
+        }
+    }
+
+    if (list_is_empty(soc_queue))
+        BTIF_TRACE_DEBUG("btif_hl_select_monitor_queue is empty");
+
+    BTIF_TRACE_DEBUG("leaving %s",__FUNCTION__);
+}
+
+/*******************************************************************************
+**
+** Function btif_hl_select_wakeup_init
+**
+** Description select loop wakup init
+**
+** Returns int
+**
+*******************************************************************************/
+static inline int btif_hl_select_wakeup_init(fd_set* set){
+    BTIF_TRACE_DEBUG("%s", __func__);
+    if (signal_fds[0] == -1 && socketpair(AF_UNIX, SOCK_STREAM, 0, signal_fds) < 0)
+    {
+        BTIF_TRACE_ERROR("socketpair failed: %s", strerror(errno));
+        return -1;
+    }
+
+    BTIF_TRACE_DEBUG("btif_hl_select_wakeup_init signal_fds[0]=%d signal_fds[1]=%d",signal_fds[0], signal_fds[1] );
+    FD_SET(signal_fds[0], set);
+
+    return signal_fds[0];
+}
+
+/*******************************************************************************
+**
+** Function btif_hl_select_wakeup
+**
+** Description send a signal to wakupo the select loop
+**
+** Returns int
+**
+*******************************************************************************/
+static inline int btif_hl_select_wakeup(void){
+    char sig_on = btif_hl_signal_select_wakeup;
+
+    BTIF_TRACE_DEBUG("%s", __func__);
+
+    ssize_t ret;
+    OSI_NO_INTR(ret = send(signal_fds[1], &sig_on, sizeof(sig_on), 0));
+
+    return (int)ret;
+}
+
+/*******************************************************************************
+**
+** Function btif_hl_select_close_connected
+**
+** Description send a signal to close a socket
+**
+** Returns int
+**
+*******************************************************************************/
+static inline int btif_hl_select_close_connected(void){
+    char sig_on = btif_hl_signal_select_close_connected;
+
+    BTIF_TRACE_DEBUG("%s", __func__);
+
+    ssize_t ret;
+    OSI_NO_INTR(ret = send(signal_fds[1], &sig_on, sizeof(sig_on), 0));
+
+    return (int)ret;
+}
+
+/*******************************************************************************
+**
+** Function btif_hl_close_select_thread
+**
+** Description send signal to close the thread and then close all signal FDs
+**
+** Returns int
+**
+*******************************************************************************/
+static inline int btif_hl_close_select_thread(void)
+{
+    ssize_t result = 0;
+    char sig_on = btif_hl_signal_select_exit;
+
+    BTIF_TRACE_DEBUG("%", __func__);
+
+    OSI_NO_INTR(result = send(signal_fds[1], &sig_on, sizeof(sig_on), 0));
+
+    if (btif_is_enabled())
+    {
+        /* Wait for the select_thread_id to exit if BT is still enabled
+        and only this profile getting  cleaned up*/
+        if (select_thread_id != -1) {
+            pthread_join(select_thread_id, NULL);
+            select_thread_id = -1;
+        }
+    }
+    list_free(soc_queue);
+    soc_queue = NULL;
+
+    return (int)result;
+}
+
+/*******************************************************************************
+**
+** Function btif_hl_select_wake_reset
+**
+** Description clear the received signal for the select loop
+**
+** Returns int
+**
+*******************************************************************************/
+static inline int btif_hl_select_wake_reset(void){
+    char sig_recv = 0;
+
+    BTIF_TRACE_DEBUG("%s", __func__);
+
+    ssize_t r;
+    OSI_NO_INTR(r = recv(signal_fds[0], &sig_recv, sizeof(sig_recv),
+                         MSG_WAITALL));
+
+    return (int)sig_recv;
+}
+/*******************************************************************************
+**
+** Function btif_hl_select_wake_signaled
+**
+** Description check whether a fd is set or not
+**
+** Returns int
+**
+*******************************************************************************/
+static inline int btif_hl_select_wake_signaled(fd_set* set){
+    BTIF_TRACE_DEBUG("btif_hl_select_wake_signaled");
+    return FD_ISSET(signal_fds[0], set);
+}
+/*******************************************************************************
+**
+** Function btif_hl_thread_cleanup
+**
+** Description  shut down and clean up the select loop
+**
+** Returns void
+**
+*******************************************************************************/
+static void btif_hl_thread_cleanup(){
+    if (listen_s != -1)
+        close(listen_s);
+    if (connected_s != -1)
+    {
+        shutdown(connected_s, SHUT_RDWR);
+        close(connected_s);
+    }
+    listen_s = connected_s = -1;
+    BTIF_TRACE_DEBUG("hl thread cleanup");
+}
+/*******************************************************************************
+**
+** Function btif_hl_select_thread
+**
+** Description the select loop
+**
+** Returns void
+**
+*******************************************************************************/
+static void *btif_hl_select_thread(void *arg){
+    fd_set org_set, curr_set;
+    int r, max_curr_s, max_org_s;
+    UNUSED(arg);
+
+    BTIF_TRACE_DEBUG("entered btif_hl_select_thread");
+    FD_ZERO(&org_set);
+    max_org_s = btif_hl_select_wakeup_init(&org_set);
+    BTIF_TRACE_DEBUG("max_s=%d ", max_org_s);
+
+    for (;;)
+    {
+        r = 0;
+        BTIF_TRACE_DEBUG("set curr_set = org_set ");
+        curr_set = org_set;
+        max_curr_s = max_org_s;
+        int ret = select((max_curr_s + 1), &curr_set, NULL, NULL, NULL);
+        BTIF_TRACE_DEBUG("select unblocked ret=%d", ret);
+        if (ret == -1)
+        {
+            if (errno == EINTR)
+                continue;
+            BTIF_TRACE_DEBUG("select() ret -1, exit the thread");
+            btif_hl_thread_cleanup();
+            select_thread_id = -1;
+            return 0;
+        }
+        else if (ret)
+        {
+            BTIF_TRACE_DEBUG("btif_hl_select_wake_signaled, signal ret=%d", ret);
+            if (btif_hl_select_wake_signaled(&curr_set))
+            {
+                r = btif_hl_select_wake_reset();
+                BTIF_TRACE_DEBUG("btif_hl_select_wake_signaled, signal:%d", r);
+                if (r == btif_hl_signal_select_wakeup || r == btif_hl_signal_select_close_connected )
+                {
+                    btif_hl_select_wakeup_callback(&org_set, r);
+                }
+                else if( r == btif_hl_signal_select_exit)
+                {
+                    btif_hl_thread_cleanup();
+                    BTIF_TRACE_DEBUG("Exit hl_select_thread for btif_hl_signal_select_exit");
+                    return 0;
+                }
+            }
+
+            btif_hl_select_monitor_callback(&curr_set, &org_set);
+            max_org_s = btif_hl_update_maxfd(max_org_s);
+        }
+        else
+            BTIF_TRACE_DEBUG("no data, select ret: %d\n", ret);
+    }
+    BTIF_TRACE_DEBUG("leaving hl_select_thread");
+    return 0;
+}
+
+/*******************************************************************************
+**
+** Function create_thread
+**
+** Description creat a select loop
+**
+** Returns pthread_t
+**
+*******************************************************************************/
+static inline pthread_t create_thread(void *(*start_routine)(void *), void * arg){
+    BTIF_TRACE_DEBUG("create_thread: entered");
+    pthread_attr_t thread_attr;
+
+    pthread_attr_init(&thread_attr);
+    pthread_attr_setdetachstate(&thread_attr, PTHREAD_CREATE_JOINABLE);
+    pthread_t thread_id = -1;
+    if ( pthread_create(&thread_id, &thread_attr, start_routine, arg)!=0 )
+    {
+        BTIF_TRACE_ERROR("pthread_create : %s", strerror(errno));
+        return -1;
+    }
+    BTIF_TRACE_DEBUG("create_thread: thread created successfully");
+    return thread_id;
+}
+
+/*******************************************************************************
+**
+** Function         btif_hl_soc_thread_init
+**
+** Description      HL select loop init function.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btif_hl_soc_thread_init(void){
+    BTIF_TRACE_DEBUG("%s", __FUNCTION__);
+    soc_queue = list_new(NULL);
+    if (soc_queue == NULL)
+        LOG_ERROR(LOG_TAG, "%s unable to allocate resources for thread", __func__);
+    select_thread_id = create_thread(btif_hl_select_thread, NULL);
+}
+/*******************************************************************************
+**
+** Function btif_hl_load_mdl_config
+**
+** Description load the MDL configuation from the application control block
+**
+** Returns BOOLEAN
+**
+*******************************************************************************/
+BOOLEAN btif_hl_load_mdl_config (UINT8 app_id, UINT8 buffer_size,
+                                 tBTA_HL_MDL_CFG *p_mdl_buf ){
+    UINT8 app_idx;
+    BOOLEAN result = FALSE;
+    btif_hl_app_cb_t          *p_acb;
+    tBTA_HL_MDL_CFG *p;
+    int i;
+    BTIF_TRACE_DEBUG("%s", __FUNCTION__);
+
+    if (btif_hl_find_app_idx(app_id, &app_idx))
+    {
+        p_acb  = BTIF_HL_GET_APP_CB_PTR(app_idx);
+        for (i=0, p=p_mdl_buf; i<buffer_size; i++, p++)
+        {
+            memcpy(p, &p_acb->mdl_cfg[i].base, sizeof(tBTA_HL_MDL_CFG));
+        }
+        result = TRUE;
+    }
+
+    BTIF_TRACE_DEBUG("result=%d", result);
+    return result;
+}
diff --git a/rtkbt/code/bt/btif/src/btif_mce.c b/rtkbt/code/bt/btif/src/btif_mce.c
new file mode 100755
index 0000000..13268ef
--- /dev/null
+++ b/rtkbt/code/bt/btif/src/btif_mce.c
@@ -0,0 +1,186 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 The Android Open Source Project
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/************************************************************************************
+ *
+ *  Filename:      btif_mce.c
+ *
+ *  Description:   Message Access Profile (MCE role) Bluetooth Interface
+ *
+ *
+ ***********************************************************************************/
+
+#define LOG_TAG "bt_btif_mce"
+
+#include <stdlib.h>
+#include <string.h>
+
+#include <hardware/bluetooth.h>
+#include <hardware/bt_mce.h>
+
+#include "bt_types.h"
+#include "bta_api.h"
+#include "bta_mce_api.h"
+#include "btcore/include/bdaddr.h"
+#include "btif_common.h"
+#include "btif_profile_queue.h"
+#include "btif_util.h"
+
+/*****************************************************************************
+**  Static variables
+******************************************************************************/
+
+static btmce_callbacks_t *bt_mce_callbacks = NULL;
+
+static void btif_mce_mas_discovery_comp_evt(UINT16 event, char *p_param)
+{
+    tBTA_MCE_MAS_DISCOVERY_COMP *evt_data = (tBTA_MCE_MAS_DISCOVERY_COMP*) p_param;
+    btmce_mas_instance_t insts[BTA_MCE_MAX_MAS_INSTANCES];
+    bt_bdaddr_t addr;
+    int i;
+
+    BTIF_TRACE_EVENT("%s:  event = %d", __FUNCTION__, event);
+
+    if (event != BTA_MCE_MAS_DISCOVERY_COMP_EVT)
+        return;
+
+    for (i = 0; i < evt_data->num_mas; i++)
+    {
+        insts[i].id = evt_data->mas[i].instance_id;
+        insts[i].scn = evt_data->mas[i].scn;
+        insts[i].msg_types = evt_data->mas[i].msg_type;
+        insts[i].p_name = evt_data->mas[i].p_srv_name;
+    }
+
+    bdcpy(addr.address, evt_data->remote_addr);
+
+    HAL_CBACK(bt_mce_callbacks, remote_mas_instances_cb, evt_data->status, &addr, evt_data->num_mas, insts);
+}
+
+static void mas_discovery_comp_copy_cb(UINT16 event, char *p_dest, char *p_src)
+{
+    tBTA_MCE_MAS_DISCOVERY_COMP *p_dest_data =  (tBTA_MCE_MAS_DISCOVERY_COMP *) p_dest;
+    tBTA_MCE_MAS_DISCOVERY_COMP *p_src_data =  (tBTA_MCE_MAS_DISCOVERY_COMP *) p_src;
+    char *p_dest_str;
+    int i;
+
+    if (!p_src)
+        return;
+
+    if (event != BTA_MCE_MAS_DISCOVERY_COMP_EVT)
+        return;
+
+    maybe_non_aligned_memcpy(p_dest_data, p_src_data, sizeof(*p_src_data));
+
+    p_dest_str = p_dest + sizeof(tBTA_MCE_MAS_DISCOVERY_COMP);
+
+    for (i = 0; i < p_src_data->num_mas; i++)
+    {
+        p_dest_data->mas[i].p_srv_name = p_dest_str;
+        memcpy(p_dest_str, p_src_data->mas[i].p_srv_name, p_src_data->mas[i].srv_name_len);
+        p_dest_str += p_src_data->mas[i].srv_name_len;
+        *(p_dest_str++) = '\0';
+    }
+}
+
+static void mce_dm_cback(tBTA_MCE_EVT event, tBTA_MCE *p_data, void *user_data)
+{
+    switch (event)
+    {
+        case BTA_MCE_MAS_DISCOVERY_COMP_EVT:
+            {
+                int i;
+                UINT16 param_len = sizeof(tBTA_MCE);
+
+                /* include space for all p_srv_name copies including null-termination */
+                for (i = 0; i < p_data->mas_disc_comp.num_mas; i++)
+                    param_len += (p_data->mas_disc_comp.mas[i].srv_name_len + 1);
+
+                /* need to deepy copy p_srv_name and null-terminate */
+                btif_transfer_context(btif_mce_mas_discovery_comp_evt, event,
+                                        (char*)p_data, param_len, mas_discovery_comp_copy_cb);
+
+                break;
+            }
+    }
+}
+
+static bt_status_t init(btmce_callbacks_t* callbacks)
+{
+    BTIF_TRACE_EVENT("%s", __FUNCTION__);
+
+    bt_mce_callbacks = callbacks;
+
+    btif_enable_service(BTA_MAP_SERVICE_ID);
+
+    return BT_STATUS_SUCCESS;
+}
+
+static bt_status_t get_remote_mas_instances(bt_bdaddr_t *bd_addr)
+{
+    bdstr_t bdstr;
+
+    BTIF_TRACE_EVENT("%s: remote_addr=%s", __FUNCTION__, bdaddr_to_string(bd_addr, bdstr, sizeof(bdstr)));
+
+    BTA_MceGetRemoteMasInstances(bd_addr->address);
+
+    return BT_STATUS_SUCCESS;
+}
+#ifdef BLUETOOTH_RTK
+static const btmce_interface_t mce_if = {
+    .size = sizeof(btmce_interface_t),
+    .init = init,
+    .get_remote_mas_instances = get_remote_mas_instances,
+};
+#else
+static const btmce_interface_t mce_if = {
+    sizeof(btmce_interface_t),
+    init,
+    get_remote_mas_instances,
+};
+#endif
+const btmce_interface_t *btif_mce_get_interface(void)
+{
+    BTIF_TRACE_EVENT("%s", __FUNCTION__);
+    return &mce_if;
+}
+
+/*******************************************************************************
+**
+** Function         btif_mce_execute_service
+**
+** Description      Initializes/Shuts down the service
+**
+** Returns          BT_STATUS_SUCCESS on success, BT_STATUS_FAIL otherwise
+**
+*******************************************************************************/
+bt_status_t btif_mce_execute_service(BOOLEAN b_enable)
+{
+    BTIF_TRACE_EVENT("%s enable:%d", __FUNCTION__, b_enable);
+
+     if (b_enable)
+     {
+         BTA_MceEnable(mce_dm_cback);
+     }
+     else
+     {
+         /* This is called on BT disable so no need to extra cleanup */
+     }
+     return BT_STATUS_SUCCESS;
+}
diff --git a/rtkbt/code/bt/btif/src/btif_media_task.c b/rtkbt/code/bt/btif/src/btif_media_task.c
new file mode 100755
index 0000000..d97d653
--- /dev/null
+++ b/rtkbt/code/bt/btif/src/btif_media_task.c
@@ -0,0 +1,3425 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ **
+ **  Name:          btif_media_task.c
+ **
+ **  Description:   This is the multimedia module for the BTIF system.  It
+ **                 contains task implementations AV, HS and HF profiles
+ **                 audio & video processing
+ **
+ ******************************************************************************/
+
+#define LOG_TAG "bt_btif_media"
+
+#include <assert.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <pthread.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include <hardware/bluetooth.h>
+
+#include "a2d_api.h"
+#include "a2d_int.h"
+#include "a2d_sbc.h"
+#include "audio_a2dp_hw.h"
+#include "bt_target.h"
+#include "bta_api.h"
+#include "bta_av_api.h"
+#include "bta_av_ci.h"
+#include "bta_av_sbc.h"
+#include "bta_sys.h"
+#include "bta_sys_int.h"
+#include "btif_av.h"
+#include "btif_av_co.h"
+#include "btif_media.h"
+#include "btif_sm.h"
+#include "btif_util.h"
+#include "btu.h"
+#include "bt_common.h"
+#include "device/include/controller.h"
+#include "l2c_api.h"
+#include "osi/include/alarm.h"
+#include "osi/include/fixed_queue.h"
+#include "osi/include/log.h"
+#include "osi/include/metrics.h"
+#include "osi/include/mutex.h"
+#include "osi/include/thread.h"
+
+#if (BTA_AV_INCLUDED == TRUE)
+#include "sbc_encoder.h"
+#endif
+
+#if (BTA_AV_SINK_INCLUDED == TRUE)
+#include "oi_codec_sbc.h"
+#include "oi_status.h"
+#endif
+#ifdef BLUETOOTH_RTK_COEX
+#include "rtk_parse.h"
+#endif
+#ifdef USE_AUDIO_TRACK
+#include "btif_avrcp_audio_track.h"
+#endif
+
+#if (BTA_AV_SINK_INCLUDED == TRUE)
+OI_CODEC_SBC_DECODER_CONTEXT context;
+OI_UINT32 contextData[CODEC_DATA_WORDS(2, SBC_CODEC_FAST_FILTER_BUFFERS)];
+OI_INT16 pcmData[15*SBC_MAX_SAMPLES_PER_FRAME*SBC_MAX_CHANNELS];
+#endif
+
+/*****************************************************************************
+ **  Constants
+ *****************************************************************************/
+#ifndef AUDIO_CHANNEL_OUT_MONO
+#define AUDIO_CHANNEL_OUT_MONO 0x01
+#endif
+
+#ifndef AUDIO_CHANNEL_OUT_STEREO
+#define AUDIO_CHANNEL_OUT_STEREO 0x03
+#endif
+
+/* BTIF media cmd event definition : BTIF_MEDIA_TASK_CMD */
+enum
+{
+    BTIF_MEDIA_START_AA_TX = 1,
+    BTIF_MEDIA_STOP_AA_TX,
+    BTIF_MEDIA_AA_RX_RDY,
+    BTIF_MEDIA_UIPC_RX_RDY,
+    BTIF_MEDIA_SBC_ENC_INIT,
+    BTIF_MEDIA_SBC_ENC_UPDATE,
+    BTIF_MEDIA_SBC_DEC_INIT,
+    BTIF_MEDIA_VIDEO_DEC_INIT,
+    BTIF_MEDIA_FLUSH_AA_TX,
+    BTIF_MEDIA_FLUSH_AA_RX,
+    BTIF_MEDIA_AUDIO_FEEDING_INIT,
+    BTIF_MEDIA_AUDIO_RECEIVING_INIT,
+    BTIF_MEDIA_AUDIO_SINK_CFG_UPDATE,
+    BTIF_MEDIA_AUDIO_SINK_CLEAR_TRACK,
+    BTIF_MEDIA_AUDIO_SINK_SET_FOCUS_STATE
+};
+
+enum {
+    MEDIA_TASK_STATE_OFF = 0,
+    MEDIA_TASK_STATE_ON = 1,
+    MEDIA_TASK_STATE_SHUTTING_DOWN = 2
+};
+
+/* Macro to multiply the media task tick */
+#ifndef BTIF_MEDIA_NUM_TICK
+#define BTIF_MEDIA_NUM_TICK      1
+#endif
+
+/* Media task tick in milliseconds, must be set to multiple of
+   (1000/TICKS_PER_SEC) (10) */
+
+#define BTIF_MEDIA_TIME_TICK                     (20 * BTIF_MEDIA_NUM_TICK)
+#define A2DP_DATA_READ_POLL_MS    (BTIF_MEDIA_TIME_TICK / 2)
+#define BTIF_SINK_MEDIA_TIME_TICK_MS             (20 * BTIF_MEDIA_NUM_TICK)
+
+
+/* buffer pool */
+#define BTIF_MEDIA_AA_BUF_SIZE  BT_DEFAULT_BUFFER_SIZE
+
+/* offset */
+#if (BTA_AV_CO_CP_SCMS_T == TRUE)
+#define BTIF_MEDIA_AA_SBC_OFFSET (AVDT_MEDIA_OFFSET + BTA_AV_SBC_HDR_SIZE + 1)
+#else
+#define BTIF_MEDIA_AA_SBC_OFFSET (AVDT_MEDIA_OFFSET + BTA_AV_SBC_HDR_SIZE)
+#endif
+
+/* Define the bitrate step when trying to match bitpool value */
+#ifndef BTIF_MEDIA_BITRATE_STEP
+#define BTIF_MEDIA_BITRATE_STEP 5
+#endif
+
+#ifndef BTIF_A2DP_DEFAULT_BITRATE
+/* High quality quality setting @ 44.1 khz */
+#ifdef BLUETOOTH_RTK
+#define BTIF_A2DP_DEFAULT_BITRATE 229
+#else
+#define BTIF_A2DP_DEFAULT_BITRATE 328
+#endif
+#endif
+
+#ifndef BTIF_A2DP_NON_EDR_MAX_RATE
+#define BTIF_A2DP_NON_EDR_MAX_RATE 229
+#endif
+
+#if (BTA_AV_CO_CP_SCMS_T == TRUE)
+/* A2DP header will contain a CP header of size 1 */
+#define A2DP_HDR_SIZE               2
+#else
+#define A2DP_HDR_SIZE               1
+#endif
+#define MAX_SBC_HQ_FRAME_SIZE_44_1  119
+#define MAX_SBC_HQ_FRAME_SIZE_48    115
+
+/* 2DH5 payload size of 679 bytes - (4 bytes L2CAP Header + 12 bytes AVDTP Header) */
+#define MAX_2MBPS_AVDTP_MTU         663
+#define USEC_PER_SEC 1000000L
+#define TPUT_STATS_INTERVAL_US (3000*1000)
+
+/**
+ * CONGESTION COMPENSATION CTRL ::
+ *
+ * Thus setting controls how many buffers we will hold in media task
+ * during temp link congestion. Together with the stack buffer queues
+ * it controls much temporary a2dp link congestion we can
+ * compensate for. It however also depends on the default run level of sinks
+ * jitterbuffers. Depending on type of sink this would vary.
+ * Ideally the (SRC) max tx buffer capacity should equal the sinks
+ * jitterbuffer runlevel including any intermediate buffers on the way
+ * towards the sinks codec.
+ */
+#ifndef MAX_PCM_FRAME_NUM_PER_TICK
+#define MAX_PCM_FRAME_NUM_PER_TICK     14
+#endif
+#define MAX_PCM_ITER_NUM_PER_TICK      3
+
+/**
+ * The typical runlevel of the tx queue size is ~1 buffer
+ * but due to link flow control or thread preemption in lower
+ * layers we might need to temporarily buffer up data.
+ */
+#define MAX_OUTPUT_A2DP_FRAME_QUEUE_SZ (MAX_PCM_FRAME_NUM_PER_TICK * 2)
+
+/* In case of A2DP SINK, we will delay start by 5 AVDTP Packets*/
+#define MAX_A2DP_DELAYED_START_FRAME_COUNT 5
+#define PACKET_PLAYED_PER_TICK_48 8
+#define PACKET_PLAYED_PER_TICK_44 7
+#define PACKET_PLAYED_PER_TICK_32 5
+#define PACKET_PLAYED_PER_TICK_16 3
+
+/* Readability constants */
+#define SBC_FRAME_HEADER_SIZE_BYTES 4 // A2DP Spec v1.3, 12.4, Table 12.12
+#define SBC_SCALE_FACTOR_BITS       4 // A2DP Spec v1.3, 12.4, Table 12.13
+
+typedef struct {
+    // Counter for total updates
+    size_t total_updates;
+
+    // Last update timestamp (in us)
+    uint64_t last_update_us;
+
+    // Counter for overdue scheduling
+    size_t overdue_scheduling_count;
+
+    // Accumulated overdue scheduling deviations (in us)
+    uint64_t total_overdue_scheduling_delta_us;
+
+    // Max. overdue scheduling delta time (in us)
+    uint64_t max_overdue_scheduling_delta_us;
+
+    // Counter for premature scheduling
+    size_t premature_scheduling_count;
+
+    // Accumulated premature scheduling deviations (in us)
+    uint64_t total_premature_scheduling_delta_us;
+
+    // Max. premature scheduling delta time (in us)
+    uint64_t max_premature_scheduling_delta_us;
+
+    // Counter for exact scheduling
+    size_t exact_scheduling_count;
+
+    // Accumulated and counted scheduling time (in us)
+    uint64_t total_scheduling_time_us;
+} scheduling_stats_t;
+
+typedef struct {
+    uint64_t session_start_us;
+
+    scheduling_stats_t tx_queue_enqueue_stats;
+    scheduling_stats_t tx_queue_dequeue_stats;
+
+    size_t tx_queue_total_frames;
+    size_t tx_queue_max_frames_per_packet;
+
+    uint64_t tx_queue_total_queueing_time_us;
+    uint64_t tx_queue_max_queueing_time_us;
+
+    size_t tx_queue_total_readbuf_calls;
+    uint64_t tx_queue_last_readbuf_us;
+
+    size_t tx_queue_total_flushed_messages;
+    uint64_t tx_queue_last_flushed_us;
+
+    size_t tx_queue_total_dropped_messages;
+    size_t tx_queue_dropouts;
+    uint64_t tx_queue_last_dropouts_us;
+
+    size_t media_read_total_underflow_bytes;
+    size_t media_read_total_underflow_count;
+    uint64_t media_read_last_underflow_us;
+
+    size_t media_read_total_underrun_bytes;
+    size_t media_read_total_underrun_count;
+    uint64_t media_read_last_underrun_us;
+
+    size_t media_read_total_expected_frames;
+    size_t media_read_max_expected_frames;
+    size_t media_read_expected_count;
+
+    size_t media_read_total_limited_frames;
+    size_t media_read_max_limited_frames;
+    size_t media_read_limited_count;
+} btif_media_stats_t;
+
+typedef struct
+{
+    UINT16 num_frames_to_be_processed;
+    UINT16 len;
+    UINT16 offset;
+    UINT16 layer_specific;
+} tBT_SBC_HDR;
+
+typedef struct
+{
+    UINT32 aa_frame_counter;
+    INT32  aa_feed_counter;
+    INT32  aa_feed_residue;
+    UINT32 counter;
+    UINT32 bytes_per_tick;  /* pcm bytes read each media task tick */
+} tBTIF_AV_MEDIA_FEEDINGS_PCM_STATE;
+
+typedef union
+{
+    tBTIF_AV_MEDIA_FEEDINGS_PCM_STATE pcm;
+} tBTIF_AV_MEDIA_FEEDINGS_STATE;
+
+typedef struct
+{
+#if (BTA_AV_INCLUDED == TRUE)
+    fixed_queue_t *TxAaQ;
+    fixed_queue_t *RxSbcQ;
+    UINT16 TxAaMtuSize;
+    UINT32 timestamp;
+    UINT8 TxTranscoding;
+    tBTIF_AV_FEEDING_MODE feeding_mode;
+    tBTIF_AV_MEDIA_FEEDINGS media_feeding;
+    tBTIF_AV_MEDIA_FEEDINGS_STATE media_feeding_state;
+    SBC_ENC_PARAMS encoder;
+    UINT8 busy_level;
+    void* av_sm_hdl;
+    UINT8 a2dp_cmd_pending; /* we can have max one command pending */
+    BOOLEAN tx_flush; /* discards any outgoing data when true */
+    BOOLEAN rx_flush; /* discards any incoming data when true */
+    UINT8 peer_sep;
+    BOOLEAN data_channel_open;
+    UINT8 frames_to_process;
+    UINT8 tx_sbc_frames;
+
+    UINT32  sample_rate;
+    UINT8   channel_count;
+#ifdef USE_AUDIO_TRACK
+    btif_media_audio_focus_state rx_audio_focus_state;
+    void *audio_track;
+#endif
+    alarm_t *media_alarm;
+    alarm_t *decode_alarm;
+    btif_media_stats_t stats;
+#endif
+} tBTIF_MEDIA_CB;
+
+typedef struct {
+    long long rx;
+    long long rx_tot;
+    long long tx;
+    long long tx_tot;
+    long long ts_prev_us;
+} t_stat;
+
+static UINT64 last_frame_us = 0;
+
+static void btif_a2dp_data_cb(tUIPC_CH_ID ch_id, tUIPC_EVENT event);
+static void btif_a2dp_ctrl_cb(tUIPC_CH_ID ch_id, tUIPC_EVENT event);
+static void btif_a2dp_encoder_update(void);
+#if (BTA_AV_SINK_INCLUDED == TRUE)
+extern OI_STATUS OI_CODEC_SBC_DecodeFrame(OI_CODEC_SBC_DECODER_CONTEXT *context,
+                                          const OI_BYTE **frameData,
+                                          unsigned long *frameBytes,
+                                          OI_INT16 *pcmData,
+                                          unsigned long *pcmBytes);
+extern OI_STATUS OI_CODEC_SBC_DecoderReset(OI_CODEC_SBC_DECODER_CONTEXT *context,
+                                           unsigned long *decoderData,
+                                           unsigned long decoderDataBytes,
+                                           OI_UINT8 maxChannels,
+                                           OI_UINT8 pcmStride,
+                                           OI_BOOL enhanced);
+#endif
+static void btif_media_flush_q(fixed_queue_t *p_q);
+static void btif_media_task_aa_handle_stop_decoding(void );
+static void btif_media_task_aa_rx_flush(void);
+
+static UINT8 calculate_max_frames_per_packet();
+static const char *dump_media_event(UINT16 event);
+static void btif_media_thread_init(void *context);
+static void btif_media_thread_cleanup(void *context);
+static void btif_media_thread_handle_cmd(fixed_queue_t *queue, void *context);
+
+/* Handle incoming media packets A2DP SINK streaming*/
+#if (BTA_AV_SINK_INCLUDED == TRUE)
+static void btif_media_task_handle_inc_media(tBT_SBC_HDR*p_msg);
+#endif
+
+#if (BTA_AV_INCLUDED == TRUE)
+static void btif_media_send_aa_frame(uint64_t timestamp_us);
+static void btif_media_task_feeding_state_reset(void);
+static void btif_media_task_aa_start_tx(void);
+static void btif_media_task_aa_stop_tx(void);
+static void btif_media_task_enc_init(BT_HDR *p_msg);
+static void btif_media_task_enc_update(BT_HDR *p_msg);
+static void btif_media_task_audio_feeding_init(BT_HDR *p_msg);
+static void btif_media_task_aa_tx_flush(BT_HDR *p_msg);
+static void btif_media_aa_prep_2_send(UINT8 nb_frame, uint64_t timestamp_us);
+#if (BTA_AV_SINK_INCLUDED == TRUE)
+static void btif_media_task_aa_handle_decoder_reset(BT_HDR *p_msg);
+static void btif_media_task_aa_handle_clear_track(void);
+#endif
+static void btif_media_task_aa_handle_start_decoding(void);
+#endif
+BOOLEAN btif_media_task_clear_track(void);
+
+static void btif_media_task_aa_handle_timer(UNUSED_ATTR void *context);
+static void btif_media_task_avk_handle_timer(UNUSED_ATTR void *context);
+extern BOOLEAN btif_hf_is_call_idle();
+
+static tBTIF_MEDIA_CB btif_media_cb;
+static int media_task_running = MEDIA_TASK_STATE_OFF;
+
+static fixed_queue_t *btif_media_cmd_msg_queue;
+static thread_t *worker_thread;
+
+/*****************************************************************************
+ **  Misc helper functions
+ *****************************************************************************/
+
+static void update_scheduling_stats(scheduling_stats_t *stats,
+                                    uint64_t now_us, uint64_t expected_delta)
+{
+    uint64_t last_us = stats->last_update_us;
+
+    stats->total_updates++;
+    stats->last_update_us = now_us;
+
+    if (last_us == 0)
+      return;           // First update: expected delta doesn't apply
+
+    uint64_t deadline_us = last_us + expected_delta;
+    if (deadline_us < now_us) {
+        // Overdue scheduling
+        uint64_t delta_us = now_us - deadline_us;
+        // Ignore extreme outliers
+        if (delta_us < 10 * expected_delta) {
+            if (stats->max_overdue_scheduling_delta_us < delta_us)
+                stats->max_overdue_scheduling_delta_us = delta_us;
+            stats->total_overdue_scheduling_delta_us += delta_us;
+            stats->overdue_scheduling_count++;
+            stats->total_scheduling_time_us += now_us - last_us;
+        }
+    } else if (deadline_us > now_us) {
+        // Premature scheduling
+        uint64_t delta_us = deadline_us - now_us;
+        // Ignore extreme outliers
+        if (delta_us < 10 * expected_delta) {
+            if (stats->max_premature_scheduling_delta_us < delta_us)
+                stats->max_premature_scheduling_delta_us = delta_us;
+            stats->total_premature_scheduling_delta_us += delta_us;
+            stats->premature_scheduling_count++;
+            stats->total_scheduling_time_us += now_us - last_us;
+        }
+    } else {
+        // On-time scheduling
+        stats->exact_scheduling_count++;
+        stats->total_scheduling_time_us += now_us - last_us;
+    }
+}
+
+static UINT64 time_now_us()
+{
+    struct timespec ts_now;
+    clock_gettime(CLOCK_BOOTTIME, &ts_now);
+    return ((UINT64)ts_now.tv_sec * USEC_PER_SEC) + ((UINT64)ts_now.tv_nsec / 1000);
+}
+
+static void log_tstamps_us(char *comment, uint64_t now_us)
+{
+    static uint64_t prev_us = 0;
+    APPL_TRACE_DEBUG("[%s] ts %08llu, diff : %08llu, queue sz %d", comment, now_us, now_us - prev_us,
+                fixed_queue_length(btif_media_cb.TxAaQ));
+    prev_us = now_us;
+}
+
+UNUSED_ATTR static const char *dump_media_event(UINT16 event)
+{
+    switch (event)
+    {
+        CASE_RETURN_STR(BTIF_MEDIA_START_AA_TX)
+        CASE_RETURN_STR(BTIF_MEDIA_STOP_AA_TX)
+        CASE_RETURN_STR(BTIF_MEDIA_AA_RX_RDY)
+        CASE_RETURN_STR(BTIF_MEDIA_UIPC_RX_RDY)
+        CASE_RETURN_STR(BTIF_MEDIA_SBC_ENC_INIT)
+        CASE_RETURN_STR(BTIF_MEDIA_SBC_ENC_UPDATE)
+        CASE_RETURN_STR(BTIF_MEDIA_SBC_DEC_INIT)
+        CASE_RETURN_STR(BTIF_MEDIA_VIDEO_DEC_INIT)
+        CASE_RETURN_STR(BTIF_MEDIA_FLUSH_AA_TX)
+        CASE_RETURN_STR(BTIF_MEDIA_FLUSH_AA_RX)
+        CASE_RETURN_STR(BTIF_MEDIA_AUDIO_FEEDING_INIT)
+        CASE_RETURN_STR(BTIF_MEDIA_AUDIO_RECEIVING_INIT)
+        CASE_RETURN_STR(BTIF_MEDIA_AUDIO_SINK_CFG_UPDATE)
+        CASE_RETURN_STR(BTIF_MEDIA_AUDIO_SINK_CLEAR_TRACK)
+        CASE_RETURN_STR(BTIF_MEDIA_AUDIO_SINK_SET_FOCUS_STATE)
+
+        default:
+            return "UNKNOWN MEDIA EVENT";
+    }
+}
+
+/*****************************************************************************
+ **  A2DP CTRL PATH
+ *****************************************************************************/
+
+static const char* dump_a2dp_ctrl_event(UINT8 event)
+{
+    switch (event)
+    {
+        CASE_RETURN_STR(A2DP_CTRL_CMD_NONE)
+        CASE_RETURN_STR(A2DP_CTRL_CMD_CHECK_READY)
+        CASE_RETURN_STR(A2DP_CTRL_CMD_START)
+        CASE_RETURN_STR(A2DP_CTRL_CMD_STOP)
+        CASE_RETURN_STR(A2DP_CTRL_CMD_SUSPEND)
+        CASE_RETURN_STR(A2DP_CTRL_CMD_OFFLOAD_START)
+
+        default:
+            return "UNKNOWN MSG ID";
+    }
+}
+
+static void btif_audiopath_detached(void)
+{
+    APPL_TRACE_EVENT("## AUDIO PATH DETACHED ##");
+
+    /*  send stop request only if we are actively streaming and haven't received
+        a stop request. Potentially audioflinger detached abnormally */
+    if (alarm_is_scheduled(btif_media_cb.media_alarm)) {
+        /* post stop event and wait for audio path to stop */
+        btif_dispatch_sm_event(BTIF_AV_STOP_STREAM_REQ_EVT, NULL, 0);
+    }
+}
+
+static void a2dp_cmd_acknowledge(int status)
+{
+    UINT8 ack = status;
+
+    APPL_TRACE_EVENT("## a2dp ack : %s, status %d ##",
+          dump_a2dp_ctrl_event(btif_media_cb.a2dp_cmd_pending), status);
+
+    /* sanity check */
+    if (btif_media_cb.a2dp_cmd_pending == A2DP_CTRL_CMD_NONE)
+    {
+        APPL_TRACE_ERROR("warning : no command pending, ignore ack");
+        return;
+    }
+
+    /* clear pending */
+    btif_media_cb.a2dp_cmd_pending = A2DP_CTRL_CMD_NONE;
+
+    /* acknowledge start request */
+    UIPC_Send(UIPC_CH_ID_AV_CTRL, 0, &ack, 1);
+}
+
+
+static void btif_recv_ctrl_data(void)
+{
+    UINT8 cmd = 0;
+    int n;
+    n = UIPC_Read(UIPC_CH_ID_AV_CTRL, NULL, &cmd, 1);
+
+    /* detach on ctrl channel means audioflinger process was terminated */
+    if (n == 0)
+    {
+        APPL_TRACE_EVENT("CTRL CH DETACHED");
+        UIPC_Close(UIPC_CH_ID_AV_CTRL);
+        /* we can operate only on datachannel, if af client wants to
+           do send additional commands the ctrl channel would be reestablished */
+        //btif_audiopath_detached();
+        return;
+    }
+
+    APPL_TRACE_DEBUG("a2dp-ctrl-cmd : %s", dump_a2dp_ctrl_event(cmd));
+
+    btif_media_cb.a2dp_cmd_pending = cmd;
+
+    switch (cmd)
+    {
+        case A2DP_CTRL_CMD_CHECK_READY:
+
+            if (media_task_running == MEDIA_TASK_STATE_SHUTTING_DOWN)
+            {
+                APPL_TRACE_WARNING("%s: A2DP command %s while media task shutting down",
+                                   __func__, dump_a2dp_ctrl_event(cmd));
+                a2dp_cmd_acknowledge(A2DP_CTRL_ACK_FAILURE);
+                return;
+            }
+
+            /* check whether av is ready to setup a2dp datapath */
+            if ((btif_av_stream_ready() == TRUE) || (btif_av_stream_started_ready() == TRUE))
+            {
+                a2dp_cmd_acknowledge(A2DP_CTRL_ACK_SUCCESS);
+            }
+            else
+            {
+                APPL_TRACE_WARNING("%s: A2DP command %s while AV stream is not ready",
+                                   __func__, dump_a2dp_ctrl_event(cmd));
+                a2dp_cmd_acknowledge(A2DP_CTRL_ACK_FAILURE);
+            }
+            break;
+
+        case A2DP_CTRL_CMD_START:
+            /* Don't sent START request to stack while we are in call.
+               Some headsets like the Sony MW600, don't allow AVDTP START
+               in call and respond BAD_STATE. */
+            if (!btif_hf_is_call_idle())
+            {
+                a2dp_cmd_acknowledge(A2DP_CTRL_ACK_INCALL_FAILURE);
+                break;
+            }
+
+            if (alarm_is_scheduled(btif_media_cb.media_alarm))
+            {
+                APPL_TRACE_WARNING("%s: A2DP command %s when media alarm already scheduled",
+                                   __func__, dump_a2dp_ctrl_event(cmd));
+                a2dp_cmd_acknowledge(A2DP_CTRL_ACK_FAILURE);
+                break;
+            }
+
+            if (btif_av_stream_ready() == TRUE)
+            {
+                /* setup audio data channel listener */
+                UIPC_Open(UIPC_CH_ID_AV_AUDIO, btif_a2dp_data_cb);
+
+                /* post start event and wait for audio path to open */
+                btif_dispatch_sm_event(BTIF_AV_START_STREAM_REQ_EVT, NULL, 0);
+
+#if (BTA_AV_SINK_INCLUDED == TRUE)
+                if (btif_media_cb.peer_sep == AVDT_TSEP_SRC)
+                    a2dp_cmd_acknowledge(A2DP_CTRL_ACK_SUCCESS);
+#endif
+            }
+            else if (btif_av_stream_started_ready())
+            {
+                /* already started, setup audio data channel listener
+                   and ack back immediately */
+                UIPC_Open(UIPC_CH_ID_AV_AUDIO, btif_a2dp_data_cb);
+
+                a2dp_cmd_acknowledge(A2DP_CTRL_ACK_SUCCESS);
+            }
+            else
+            {
+                APPL_TRACE_WARNING("%s: A2DP command %s while AV stream is not ready",
+                                   __func__, dump_a2dp_ctrl_event(cmd));
+                a2dp_cmd_acknowledge(A2DP_CTRL_ACK_FAILURE);
+                break;
+            }
+            break;
+
+        case A2DP_CTRL_CMD_STOP:
+            if (btif_media_cb.peer_sep == AVDT_TSEP_SNK &&
+                (!alarm_is_scheduled(btif_media_cb.media_alarm)))
+            {
+                /* we are already stopped, just ack back */
+                a2dp_cmd_acknowledge(A2DP_CTRL_ACK_SUCCESS);
+                break;
+            }
+
+            btif_dispatch_sm_event(BTIF_AV_STOP_STREAM_REQ_EVT, NULL, 0);
+            a2dp_cmd_acknowledge(A2DP_CTRL_ACK_SUCCESS);
+            break;
+
+        case A2DP_CTRL_CMD_SUSPEND:
+            /* local suspend */
+            if (btif_av_stream_started_ready())
+            {
+                btif_dispatch_sm_event(BTIF_AV_SUSPEND_STREAM_REQ_EVT, NULL, 0);
+            }
+            else
+            {
+                /* if we are not in started state, just ack back ok and let
+                   audioflinger close the channel. This can happen if we are
+                   remotely suspended, clear REMOTE SUSPEND Flag */
+                btif_av_clear_remote_suspend_flag();
+                a2dp_cmd_acknowledge(A2DP_CTRL_ACK_SUCCESS);
+            }
+            break;
+
+        case A2DP_CTRL_GET_AUDIO_CONFIG:
+        {
+            uint32_t sample_rate = btif_media_cb.sample_rate;
+            uint8_t channel_count = btif_media_cb.channel_count;
+
+            a2dp_cmd_acknowledge(A2DP_CTRL_ACK_SUCCESS);
+            UIPC_Send(UIPC_CH_ID_AV_CTRL, 0, (UINT8 *)&sample_rate, 4);
+            UIPC_Send(UIPC_CH_ID_AV_CTRL, 0, &channel_count, 1);
+            break;
+        }
+
+        case A2DP_CTRL_CMD_OFFLOAD_START:
+                btif_dispatch_sm_event(BTIF_AV_OFFLOAD_START_REQ_EVT, NULL, 0);
+            break;
+
+        default:
+            APPL_TRACE_ERROR("UNSUPPORTED CMD (%d)", cmd);
+            a2dp_cmd_acknowledge(A2DP_CTRL_ACK_FAILURE);
+            break;
+    }
+    APPL_TRACE_DEBUG("a2dp-ctrl-cmd : %s DONE", dump_a2dp_ctrl_event(cmd));
+}
+
+static void btif_a2dp_ctrl_cb(tUIPC_CH_ID ch_id, tUIPC_EVENT event)
+{
+    UNUSED(ch_id);
+
+    APPL_TRACE_DEBUG("A2DP-CTRL-CHANNEL EVENT %s", dump_uipc_event(event));
+
+    switch (event)
+    {
+        case UIPC_OPEN_EVT:
+            /* fetch av statemachine handle */
+            btif_media_cb.av_sm_hdl = btif_av_get_sm_handle();
+            break;
+
+        case UIPC_CLOSE_EVT:
+            /* restart ctrl server unless we are shutting down */
+            if (media_task_running == MEDIA_TASK_STATE_ON)
+                UIPC_Open(UIPC_CH_ID_AV_CTRL , btif_a2dp_ctrl_cb);
+            break;
+
+        case UIPC_RX_DATA_READY_EVT:
+            btif_recv_ctrl_data();
+            break;
+
+        default :
+            APPL_TRACE_ERROR("### A2DP-CTRL-CHANNEL EVENT %d NOT HANDLED ###", event);
+            break;
+    }
+}
+
+static void btif_a2dp_data_cb(tUIPC_CH_ID ch_id, tUIPC_EVENT event)
+{
+    UNUSED(ch_id);
+
+    APPL_TRACE_DEBUG("BTIF MEDIA (A2DP-DATA) EVENT %s", dump_uipc_event(event));
+
+    switch (event)
+    {
+        case UIPC_OPEN_EVT:
+
+            /*  read directly from media task from here on (keep callback for
+                connection events */
+            UIPC_Ioctl(UIPC_CH_ID_AV_AUDIO, UIPC_REG_REMOVE_ACTIVE_READSET, NULL);
+            UIPC_Ioctl(UIPC_CH_ID_AV_AUDIO, UIPC_SET_READ_POLL_TMO,
+                       (void *)A2DP_DATA_READ_POLL_MS);
+
+            if (btif_media_cb.peer_sep == AVDT_TSEP_SNK) {
+                /* Start the media task to encode SBC */
+                btif_media_task_start_aa_req();
+
+                /* make sure we update any changed sbc encoder params */
+                btif_a2dp_encoder_update();
+            }
+            btif_media_cb.data_channel_open = TRUE;
+
+            /* ack back when media task is fully started */
+            break;
+
+        case UIPC_CLOSE_EVT:
+            a2dp_cmd_acknowledge(A2DP_CTRL_ACK_SUCCESS);
+            btif_audiopath_detached();
+            btif_media_cb.data_channel_open = FALSE;
+            break;
+
+        default :
+            APPL_TRACE_ERROR("### A2DP-DATA EVENT %d NOT HANDLED ###", event);
+            break;
+    }
+}
+
+
+/*****************************************************************************
+ **  BTIF ADAPTATION
+ *****************************************************************************/
+
+static UINT16 btif_media_task_get_sbc_rate(void)
+{
+    UINT16 rate = BTIF_A2DP_DEFAULT_BITRATE;
+
+    /* restrict bitrate if a2dp link is non-edr */
+    if (!btif_av_is_peer_edr())
+    {
+        rate = BTIF_A2DP_NON_EDR_MAX_RATE;
+        APPL_TRACE_DEBUG("non-edr a2dp sink detected, restrict rate to %d", rate);
+    }
+
+    return rate;
+}
+
+static void btif_a2dp_encoder_init(void)
+{
+    UINT16 minmtu;
+    tBTIF_MEDIA_INIT_AUDIO msg;
+    tA2D_SBC_CIE sbc_config;
+
+    /* lookup table for converting channel mode */
+    UINT16 codec_mode_tbl[5] = { SBC_JOINT_STEREO, SBC_STEREO, SBC_DUAL, 0, SBC_MONO };
+
+    /* lookup table for converting number of blocks */
+    UINT16 codec_block_tbl[5] = { 16, 12, 8, 0, 4 };
+
+    /* lookup table to convert freq */
+    UINT16 freq_block_tbl[5] = { SBC_sf48000, SBC_sf44100, SBC_sf32000, 0, SBC_sf16000 };
+
+    APPL_TRACE_DEBUG("btif_a2dp_encoder_init");
+
+    /* Retrieve the current SBC configuration (default if currently not used) */
+    bta_av_co_audio_get_sbc_config(&sbc_config, &minmtu);
+    msg.NumOfSubBands = (sbc_config.num_subbands == A2D_SBC_IE_SUBBAND_4) ? 4 : 8;
+    msg.NumOfBlocks = codec_block_tbl[sbc_config.block_len >> 5];
+    msg.AllocationMethod = (sbc_config.alloc_mthd == A2D_SBC_IE_ALLOC_MD_L) ? SBC_LOUDNESS : SBC_SNR;
+    msg.ChannelMode = codec_mode_tbl[sbc_config.ch_mode >> 1];
+    msg.SamplingFreq = freq_block_tbl[sbc_config.samp_freq >> 5];
+    msg.MtuSize = minmtu;
+
+    APPL_TRACE_EVENT("msg.ChannelMode %x", msg.ChannelMode);
+
+    /* Init the media task to encode SBC properly */
+    btif_media_task_enc_init_req(&msg);
+}
+
+static void btif_a2dp_encoder_update(void)
+{
+    UINT16 minmtu;
+    tA2D_SBC_CIE sbc_config;
+    tBTIF_MEDIA_UPDATE_AUDIO msg;
+    UINT8 pref_min;
+    UINT8 pref_max;
+
+    APPL_TRACE_DEBUG("btif_a2dp_encoder_update");
+
+    /* Retrieve the current SBC configuration (default if currently not used) */
+    bta_av_co_audio_get_sbc_config(&sbc_config, &minmtu);
+
+    APPL_TRACE_DEBUG("btif_a2dp_encoder_update: Common min_bitpool:%d(0x%x) max_bitpool:%d(0x%x)",
+            sbc_config.min_bitpool, sbc_config.min_bitpool,
+            sbc_config.max_bitpool, sbc_config.max_bitpool);
+
+    if (sbc_config.min_bitpool > sbc_config.max_bitpool)
+    {
+        APPL_TRACE_ERROR("btif_a2dp_encoder_update: ERROR btif_a2dp_encoder_update min_bitpool > max_bitpool");
+    }
+
+    /* check if remote sink has a preferred bitpool range */
+    if (bta_av_co_get_remote_bitpool_pref(&pref_min, &pref_max) == TRUE)
+    {
+        /* adjust our preferred bitpool with the remote preference if within
+           our capable range */
+
+        if (pref_min < sbc_config.min_bitpool)
+            pref_min = sbc_config.min_bitpool;
+
+        if (pref_max > sbc_config.max_bitpool)
+            pref_max = sbc_config.max_bitpool;
+
+        msg.MinBitPool = pref_min;
+        msg.MaxBitPool = pref_max;
+
+        if ((pref_min != sbc_config.min_bitpool) || (pref_max != sbc_config.max_bitpool))
+        {
+            APPL_TRACE_EVENT("## adjusted our bitpool range to peer pref [%d:%d] ##",
+                pref_min, pref_max);
+        }
+    }
+    else
+    {
+        msg.MinBitPool = sbc_config.min_bitpool;
+        msg.MaxBitPool = sbc_config.max_bitpool;
+    }
+
+    msg.MinMtuSize = minmtu;
+
+    /* Update the media task to encode SBC properly */
+    btif_media_task_enc_update_req(&msg);
+}
+
+bool btif_a2dp_start_media_task(void)
+{
+    if (media_task_running != MEDIA_TASK_STATE_OFF)
+    {
+        APPL_TRACE_ERROR("warning : media task already running");
+        return false;
+    }
+
+    APPL_TRACE_EVENT("## A2DP START MEDIA THREAD ##");
+
+    btif_media_cmd_msg_queue = fixed_queue_new(SIZE_MAX);
+
+    /* start a2dp media task */
+    worker_thread = thread_new("media_worker");
+    if (worker_thread == NULL)
+        goto error_exit;
+
+    fixed_queue_register_dequeue(btif_media_cmd_msg_queue,
+        thread_get_reactor(worker_thread),
+        btif_media_thread_handle_cmd,
+        NULL);
+
+    thread_post(worker_thread, btif_media_thread_init, NULL);
+    APPL_TRACE_EVENT("## A2DP MEDIA THREAD STARTED ##");
+
+    return true;
+
+ error_exit:;
+    APPL_TRACE_ERROR("%s unable to start up media thread", __func__);
+    return false;
+}
+
+void btif_a2dp_stop_media_task(void)
+{
+    APPL_TRACE_EVENT("## A2DP STOP MEDIA THREAD ##");
+
+    // Stop timer
+    alarm_free(btif_media_cb.media_alarm);
+    btif_media_cb.media_alarm = NULL;
+
+    // Exit thread
+    fixed_queue_free(btif_media_cmd_msg_queue, NULL);
+    btif_media_cmd_msg_queue = NULL;
+    thread_post(worker_thread, btif_media_thread_cleanup, NULL);
+    thread_free(worker_thread);
+    worker_thread = NULL;
+}
+
+/*****************************************************************************
+**
+** Function        btif_a2dp_on_init
+**
+** Description
+**
+** Returns
+**
+*******************************************************************************/
+
+void btif_a2dp_on_init(void)
+{
+#ifdef USE_AUDIO_TRACK
+    btif_media_cb.rx_audio_focus_state = BTIF_MEDIA_FOCUS_NOT_GRANTED;
+    btif_media_cb.audio_track = NULL;
+#endif
+}
+
+
+/*****************************************************************************
+**
+** Function        btif_a2dp_setup_codec
+**
+** Description
+**
+** Returns
+**
+*******************************************************************************/
+
+void btif_a2dp_setup_codec(void)
+{
+    tBTIF_AV_MEDIA_FEEDINGS media_feeding;
+    tBTIF_STATUS status;
+
+    APPL_TRACE_EVENT("## A2DP SETUP CODEC ##");
+
+    mutex_global_lock();
+
+    /* for now hardcode 44.1 khz 16 bit stereo PCM format */
+    media_feeding.cfg.pcm.sampling_freq = BTIF_A2DP_SRC_SAMPLING_RATE;
+    media_feeding.cfg.pcm.bit_per_sample = BTIF_A2DP_SRC_BIT_DEPTH;
+    media_feeding.cfg.pcm.num_channel = BTIF_A2DP_SRC_NUM_CHANNELS;
+    media_feeding.format = BTIF_AV_CODEC_PCM;
+
+    if (bta_av_co_audio_set_codec(&media_feeding, &status))
+    {
+        tBTIF_MEDIA_INIT_AUDIO_FEEDING mfeed;
+
+        /* Init the encoding task */
+        btif_a2dp_encoder_init();
+
+        /* Build the media task configuration */
+        mfeed.feeding = media_feeding;
+        mfeed.feeding_mode = BTIF_AV_FEEDING_ASYNCHRONOUS;
+        /* Send message to Media task to configure transcoding */
+        btif_media_task_audio_feeding_init_req(&mfeed);
+    }
+
+    mutex_global_unlock();
+}
+
+
+/*****************************************************************************
+**
+** Function        btif_a2dp_on_idle
+**
+** Description
+**
+** Returns
+**
+*******************************************************************************/
+
+void btif_a2dp_on_idle(void)
+{
+    APPL_TRACE_EVENT("## ON A2DP IDLE ## peer_sep = %d", btif_media_cb.peer_sep);
+    if (btif_media_cb.peer_sep == AVDT_TSEP_SNK)
+    {
+        /* Make sure media task is stopped */
+        btif_media_task_stop_aa_req();
+    }
+
+    bta_av_co_init();
+#if (BTA_AV_SINK_INCLUDED == TRUE)
+    if (btif_media_cb.peer_sep == AVDT_TSEP_SRC)
+    {
+        btif_media_cb.rx_flush = TRUE;
+        btif_media_task_aa_rx_flush_req();
+        btif_media_task_aa_handle_stop_decoding();
+        btif_media_task_clear_track();
+        APPL_TRACE_DEBUG("Stopped BT track");
+    }
+#endif
+}
+
+/*****************************************************************************
+**
+** Function        btif_a2dp_on_open
+**
+** Description
+**
+** Returns
+**
+*******************************************************************************/
+
+void btif_a2dp_on_open(void)
+{
+    APPL_TRACE_EVENT("## ON A2DP OPEN ##");
+
+    /* always use callback to notify socket events */
+    UIPC_Open(UIPC_CH_ID_AV_AUDIO, btif_a2dp_data_cb);
+}
+
+/*******************************************************************************
+ **
+ ** Function         btif_media_task_clear_track
+ **
+ ** Description
+ **
+ ** Returns          TRUE is success
+ **
+ *******************************************************************************/
+BOOLEAN btif_media_task_clear_track(void)
+{
+    BT_HDR *p_buf = osi_malloc(sizeof(BT_HDR));
+
+    p_buf->event = BTIF_MEDIA_AUDIO_SINK_CLEAR_TRACK;
+    fixed_queue_enqueue(btif_media_cmd_msg_queue, p_buf);
+
+    return TRUE;
+}
+
+/*****************************************************************************
+**
+** Function        btif_reset_decoder
+**
+** Description
+**
+** Returns
+**
+*******************************************************************************/
+
+void btif_reset_decoder(UINT8 *p_av)
+{
+    tBTIF_MEDIA_SINK_CFG_UPDATE *p_buf =
+        osi_malloc(sizeof(tBTIF_MEDIA_SINK_CFG_UPDATE));
+
+    APPL_TRACE_EVENT("btif_reset_decoder");
+    APPL_TRACE_DEBUG("btif_reset_decoder p_codec_info[%x:%x:%x:%x:%x:%x]",
+            p_av[1], p_av[2], p_av[3],
+            p_av[4], p_av[5], p_av[6]);
+
+    memcpy(p_buf->codec_info,p_av, AVDT_CODEC_SIZE);
+    p_buf->hdr.event = BTIF_MEDIA_AUDIO_SINK_CFG_UPDATE;
+
+    fixed_queue_enqueue(btif_media_cmd_msg_queue, p_buf);
+}
+
+/*****************************************************************************
+**
+** Function        btif_a2dp_on_started
+**
+** Description
+**
+** Returns
+**
+*******************************************************************************/
+
+BOOLEAN btif_a2dp_on_started(tBTA_AV_START *p_av, BOOLEAN pending_start)
+{
+    BOOLEAN ack = FALSE;
+
+    APPL_TRACE_EVENT("## ON A2DP STARTED ##");
+
+    if (p_av == NULL)
+    {
+        /* ack back a local start request */
+        a2dp_cmd_acknowledge(A2DP_CTRL_ACK_SUCCESS);
+        return TRUE;
+    }
+
+    if (p_av->status == BTA_AV_SUCCESS)
+    {
+        if (p_av->suspending == FALSE)
+        {
+            if (p_av->initiator)
+            {
+                if (pending_start) {
+                    a2dp_cmd_acknowledge(A2DP_CTRL_ACK_SUCCESS);
+                    ack = TRUE;
+                }
+            }
+            else
+            {
+                /* we were remotely started,  make sure codec
+                   is setup before datapath is started */
+                btif_a2dp_setup_codec();
+            }
+
+            /* media task is autostarted upon a2dp audiopath connection */
+        }
+    }
+    else if (pending_start)
+    {
+        APPL_TRACE_WARNING("%s: A2DP start request failed: status = %d",
+                         __func__, p_av->status);
+        a2dp_cmd_acknowledge(A2DP_CTRL_ACK_FAILURE);
+        ack = TRUE;
+    }
+    return ack;
+}
+
+
+/*****************************************************************************
+**
+** Function        btif_a2dp_ack_fail
+**
+** Description
+**
+** Returns
+**
+*******************************************************************************/
+
+void btif_a2dp_ack_fail(void)
+{
+    APPL_TRACE_EVENT("## A2DP_CTRL_ACK_FAILURE ##");
+    a2dp_cmd_acknowledge(A2DP_CTRL_ACK_FAILURE);
+}
+
+/*****************************************************************************
+**
+** Function        btif_a2dp_on_stopped
+**
+** Description
+**
+** Returns
+**
+*******************************************************************************/
+
+void btif_a2dp_on_stopped(tBTA_AV_SUSPEND *p_av)
+{
+    APPL_TRACE_EVENT("## ON A2DP STOPPED ##");
+    if (btif_media_cb.peer_sep == AVDT_TSEP_SRC) /*  Handling for A2DP SINK cases*/
+    {
+        btif_media_cb.rx_flush = TRUE;
+        btif_media_task_aa_rx_flush_req();
+        btif_media_task_aa_handle_stop_decoding();
+#ifndef USE_AUDIO_TRACK
+        UIPC_Close(UIPC_CH_ID_AV_AUDIO);
+#endif
+        btif_media_cb.data_channel_open = FALSE;
+        return;
+    }
+    /* allow using this api for other than suspend */
+    if (p_av != NULL)
+    {
+        if (p_av->status != BTA_AV_SUCCESS)
+        {
+            APPL_TRACE_EVENT("AV STOP FAILED (%d)", p_av->status);
+
+            if (p_av->initiator) {
+                APPL_TRACE_WARNING("%s: A2DP stop request failed: status = %d",
+                                   __func__, p_av->status);
+                a2dp_cmd_acknowledge(A2DP_CTRL_ACK_FAILURE);
+            }
+            return;
+        }
+    }
+
+    /* ensure tx frames are immediately suspended */
+    btif_media_cb.tx_flush = 1;
+
+    /* request to stop media task  */
+    btif_media_task_aa_tx_flush_req();
+    btif_media_task_stop_aa_req();
+
+    /* once stream is fully stopped we will ack back */
+}
+
+
+/*****************************************************************************
+**
+** Function        btif_a2dp_on_suspended
+**
+** Description
+**
+** Returns
+**
+*******************************************************************************/
+
+void btif_a2dp_on_suspended(tBTA_AV_SUSPEND *p_av)
+{
+    APPL_TRACE_EVENT("## ON A2DP SUSPENDED ##");
+    if (btif_media_cb.peer_sep == AVDT_TSEP_SRC)
+    {
+        btif_media_cb.rx_flush = TRUE;
+        btif_media_task_aa_rx_flush_req();
+        btif_media_task_aa_handle_stop_decoding();
+#ifndef USE_AUDIO_TRACK
+        UIPC_Close(UIPC_CH_ID_AV_AUDIO);
+#endif
+        return;
+    }
+
+    /* check for status failures */
+    if (p_av->status != BTA_AV_SUCCESS)
+    {
+        if (p_av->initiator == TRUE) {
+            APPL_TRACE_WARNING("%s: A2DP suspend request failed: status = %d",
+                               __func__, p_av->status);
+            a2dp_cmd_acknowledge(A2DP_CTRL_ACK_FAILURE);
+        }
+    }
+
+    /* once stream is fully stopped we will ack back */
+
+    /* ensure tx frames are immediately flushed */
+    btif_media_cb.tx_flush = 1;
+
+    /* stop timer tick */
+    btif_media_task_stop_aa_req();
+}
+
+
+/*****************************************************************************
+**
+** Function        btif_a2dp_on_offload_started
+**
+** Description
+**
+** Returns
+**
+*******************************************************************************/
+void btif_a2dp_on_offload_started(tBTA_AV_STATUS status)
+{
+    tA2DP_CTRL_ACK ack;
+    APPL_TRACE_EVENT("%s status %d", __func__, status);
+
+    switch (status) {
+        case BTA_AV_SUCCESS:
+            ack = A2DP_CTRL_ACK_SUCCESS;
+            break;
+
+        case BTA_AV_FAIL_RESOURCES:
+            APPL_TRACE_ERROR("%s FAILED UNSUPPORTED", __func__);
+            ack = A2DP_CTRL_ACK_UNSUPPORTED;
+            break;
+        default:
+            APPL_TRACE_ERROR("%s FAILED: status = %d", __func__, status);
+            ack = A2DP_CTRL_ACK_FAILURE;
+            break;
+    }
+    a2dp_cmd_acknowledge(ack);
+}
+
+/* when true media task discards any rx frames */
+void btif_a2dp_set_rx_flush(BOOLEAN enable)
+{
+    APPL_TRACE_EVENT("## DROP RX %d ##", enable);
+    btif_media_cb.rx_flush = enable;
+}
+
+/* when true media task discards any tx frames */
+void btif_a2dp_set_tx_flush(BOOLEAN enable)
+{
+    APPL_TRACE_EVENT("## DROP TX %d ##", enable);
+    btif_media_cb.tx_flush = enable;
+}
+
+#ifdef USE_AUDIO_TRACK
+void btif_a2dp_set_audio_focus_state(btif_media_audio_focus_state state)
+{
+    tBTIF_MEDIA_SINK_FOCUS_UPDATE *p_buf =
+        osi_malloc(sizeof(tBTIF_MEDIA_SINK_FOCUS_UPDATE));
+
+    APPL_TRACE_EVENT("%s", __func__);
+
+    p_buf->focus_state = state;
+    p_buf->hdr.event = BTIF_MEDIA_AUDIO_SINK_SET_FOCUS_STATE;
+    fixed_queue_enqueue(btif_media_cmd_msg_queue, p_buf);
+}
+
+void btif_a2dp_set_audio_track_gain(float gain)
+{
+    APPL_TRACE_DEBUG("%s set gain to %f", __func__, gain);
+    BtifAvrcpSetAudioTrackGain(btif_media_cb.audio_track, gain);
+}
+#endif
+
+#if (BTA_AV_SINK_INCLUDED == TRUE)
+static void btif_media_task_avk_handle_timer(UNUSED_ATTR void *context)
+{
+    tBT_SBC_HDR *p_msg;
+    int num_sbc_frames;
+    int num_frames_to_process;
+
+    if (fixed_queue_is_empty(btif_media_cb.RxSbcQ))
+    {
+        APPL_TRACE_DEBUG("  QUE  EMPTY ");
+    }
+    else
+    {
+#ifdef USE_AUDIO_TRACK
+        /* Don't Do anything in case of Not granted */
+        if (btif_media_cb.rx_audio_focus_state == BTIF_MEDIA_FOCUS_NOT_GRANTED)
+        {
+            APPL_TRACE_DEBUG("%s skipping frames since focus is not present.", __func__);
+            return;
+        }
+        /* play only in BTIF_MEDIA_FOCUS_GRANTED case */
+#endif
+        if (btif_media_cb.rx_flush == TRUE)
+        {
+            btif_media_flush_q(btif_media_cb.RxSbcQ);
+            return;
+        }
+
+        num_frames_to_process = btif_media_cb.frames_to_process;
+        APPL_TRACE_DEBUG(" Process Frames + ");
+
+        do
+        {
+            p_msg = (tBT_SBC_HDR *)fixed_queue_try_peek_first(btif_media_cb.RxSbcQ);
+            if (p_msg == NULL)
+                return;
+            num_sbc_frames  = p_msg->num_frames_to_be_processed; /* num of frames in Que Packets */
+            APPL_TRACE_DEBUG(" Frames left in topmost packet %d", num_sbc_frames);
+            APPL_TRACE_DEBUG(" Remaining frames to process in tick %d", num_frames_to_process);
+            APPL_TRACE_DEBUG(" Num of Packets in Que %d",
+                             fixed_queue_length(btif_media_cb.RxSbcQ));
+
+            if ( num_sbc_frames > num_frames_to_process) /*  Que Packet has more frames*/
+            {
+                 p_msg->num_frames_to_be_processed= num_frames_to_process;
+                 btif_media_task_handle_inc_media(p_msg);
+                 p_msg->num_frames_to_be_processed = num_sbc_frames - num_frames_to_process;
+                 num_frames_to_process = 0;
+                 break;
+            }
+            else                                        /*  Que packet has less frames */
+            {
+                btif_media_task_handle_inc_media(p_msg);
+                p_msg = (tBT_SBC_HDR *)fixed_queue_try_dequeue(btif_media_cb.RxSbcQ);
+                if( p_msg == NULL )
+                {
+                     APPL_TRACE_ERROR("Insufficient data in que ");
+                     break;
+                }
+                num_frames_to_process = num_frames_to_process - p_msg->num_frames_to_be_processed;
+                osi_free(p_msg);
+            }
+        } while(num_frames_to_process > 0);
+
+        APPL_TRACE_DEBUG(" Process Frames - ");
+    }
+}
+#else
+static void btif_media_task_avk_handle_timer(UNUSED_ATTR void *context) {}
+#endif
+
+static void btif_media_task_aa_handle_timer(UNUSED_ATTR void *context)
+{
+    uint64_t timestamp_us = time_now_us();
+    log_tstamps_us("media task tx timer", timestamp_us);
+
+#if (BTA_AV_INCLUDED == TRUE)
+    if (alarm_is_scheduled(btif_media_cb.media_alarm))
+    {
+        btif_media_send_aa_frame(timestamp_us);
+    }
+    else
+    {
+        APPL_TRACE_ERROR("ERROR Media task Scheduled after Suspend");
+    }
+#endif
+}
+
+#if (BTA_AV_INCLUDED == TRUE)
+static void btif_media_task_aa_handle_uipc_rx_rdy(void)
+{
+    /* process all the UIPC data */
+    btif_media_aa_prep_2_send(0xFF, time_now_us());
+
+    /* send it */
+    LOG_VERBOSE(LOG_TAG, "%s calls bta_av_ci_src_data_ready", __func__);
+    bta_av_ci_src_data_ready(BTA_AV_CHNL_AUDIO);
+}
+#endif
+
+static void btif_media_thread_init(UNUSED_ATTR void *context) {
+  // Check to make sure the platform has 8 bits/byte since
+  // we're using that in frame size calculations now.
+  assert(CHAR_BIT == 8);
+
+  memset(&btif_media_cb, 0, sizeof(btif_media_cb));
+  btif_media_cb.stats.session_start_us = time_now_us();
+
+  UIPC_Init(NULL);
+
+#if (BTA_AV_INCLUDED == TRUE)
+  btif_media_cb.TxAaQ = fixed_queue_new(SIZE_MAX);
+  btif_media_cb.RxSbcQ = fixed_queue_new(SIZE_MAX);
+  UIPC_Open(UIPC_CH_ID_AV_CTRL , btif_a2dp_ctrl_cb);
+#endif
+
+  raise_priority_a2dp(TASK_HIGH_MEDIA);
+  media_task_running = MEDIA_TASK_STATE_ON;
+}
+
+static void btif_media_thread_cleanup(UNUSED_ATTR void *context) {
+  /* make sure no channels are restarted while shutting down */
+  media_task_running = MEDIA_TASK_STATE_SHUTTING_DOWN;
+
+  /* this calls blocks until uipc is fully closed */
+#ifdef BLUETOOTH_RTK_API
+    UIPC_Close(UIPC_CH_ID_AV_CTRL);
+    UIPC_Close(UIPC_CH_ID_AV_AUDIO);
+#else
+  UIPC_Close(UIPC_CH_ID_ALL);
+#endif
+#if (BTA_AV_INCLUDED == TRUE)
+  fixed_queue_free(btif_media_cb.TxAaQ, NULL);
+  btif_media_cb.TxAaQ = NULL;
+  fixed_queue_free(btif_media_cb.RxSbcQ, NULL);
+  btif_media_cb.RxSbcQ = NULL;
+#endif
+
+  /* Clear media task flag */
+  media_task_running = MEDIA_TASK_STATE_OFF;
+}
+
+/*******************************************************************************
+ **
+ ** Function         btif_media_task_send_cmd_evt
+ **
+ ** Description
+ **
+ ** Returns          TRUE is success
+ **
+ *******************************************************************************/
+BOOLEAN btif_media_task_send_cmd_evt(UINT16 Evt)
+{
+    BT_HDR *p_buf = osi_malloc(sizeof(BT_HDR));
+
+    p_buf->event = Evt;
+    fixed_queue_enqueue(btif_media_cmd_msg_queue, p_buf);
+
+    return TRUE;
+}
+
+/*******************************************************************************
+ **
+ ** Function         btif_media_flush_q
+ **
+ ** Description
+ **
+ ** Returns          void
+ **
+ *******************************************************************************/
+static void btif_media_flush_q(fixed_queue_t *p_q)
+{
+    while (! fixed_queue_is_empty(p_q))
+    {
+        osi_free(fixed_queue_try_dequeue(p_q));
+    }
+}
+
+static void btif_media_thread_handle_cmd(fixed_queue_t *queue, UNUSED_ATTR void *context)
+{
+    BT_HDR *p_msg = (BT_HDR *)fixed_queue_dequeue(queue);
+    LOG_VERBOSE(LOG_TAG, "btif_media_thread_handle_cmd : %d %s", p_msg->event,
+             dump_media_event(p_msg->event));
+
+    switch (p_msg->event)
+    {
+#if (BTA_AV_INCLUDED == TRUE)
+    case BTIF_MEDIA_START_AA_TX:
+        btif_media_task_aa_start_tx();
+        break;
+    case BTIF_MEDIA_STOP_AA_TX:
+        btif_media_task_aa_stop_tx();
+        break;
+    case BTIF_MEDIA_SBC_ENC_INIT:
+        btif_media_task_enc_init(p_msg);
+        break;
+    case BTIF_MEDIA_SBC_ENC_UPDATE:
+        btif_media_task_enc_update(p_msg);
+        break;
+    case BTIF_MEDIA_AUDIO_FEEDING_INIT:
+        btif_media_task_audio_feeding_init(p_msg);
+        break;
+    case BTIF_MEDIA_FLUSH_AA_TX:
+        btif_media_task_aa_tx_flush(p_msg);
+        break;
+    case BTIF_MEDIA_UIPC_RX_RDY:
+        btif_media_task_aa_handle_uipc_rx_rdy();
+        break;
+#ifdef USE_AUDIO_TRACK
+    case BTIF_MEDIA_AUDIO_SINK_SET_FOCUS_STATE:
+        if(!btif_av_is_connected())
+            break;
+        btif_media_cb.rx_audio_focus_state = ((tBTIF_MEDIA_SINK_FOCUS_UPDATE *)p_msg)->focus_state;
+        APPL_TRACE_DEBUG("Setting focus state to %d ",btif_media_cb.rx_audio_focus_state);
+        break;
+#endif
+    case BTIF_MEDIA_AUDIO_SINK_CFG_UPDATE:
+#if (BTA_AV_SINK_INCLUDED == TRUE)
+        btif_media_task_aa_handle_decoder_reset(p_msg);
+#endif
+        break;
+    case BTIF_MEDIA_AUDIO_SINK_CLEAR_TRACK:
+#if (BTA_AV_SINK_INCLUDED == TRUE)
+        btif_media_task_aa_handle_clear_track();
+#endif
+        break;
+     case BTIF_MEDIA_FLUSH_AA_RX:
+        btif_media_task_aa_rx_flush();
+        break;
+#endif
+    default:
+        APPL_TRACE_ERROR("ERROR in %s unknown event %d", __func__, p_msg->event);
+    }
+    osi_free(p_msg);
+    LOG_VERBOSE(LOG_TAG, "%s: %s DONE", __func__, dump_media_event(p_msg->event));
+}
+
+#if (BTA_AV_SINK_INCLUDED == TRUE)
+/*******************************************************************************
+ **
+ ** Function         btif_media_task_handle_inc_media
+ **
+ ** Description
+ **
+ ** Returns          void
+ **
+ *******************************************************************************/
+static void btif_media_task_handle_inc_media(tBT_SBC_HDR*p_msg)
+{
+    UINT8 *sbc_start_frame = ((UINT8*)(p_msg + 1) + p_msg->offset + 1);
+    int count;
+    UINT32 pcmBytes, availPcmBytes;
+    OI_INT16 *pcmDataPointer = pcmData; /*Will be overwritten on next packet receipt*/
+    OI_STATUS status;
+    int num_sbc_frames = p_msg->num_frames_to_be_processed;
+    UINT32 sbc_frame_len = p_msg->len - 1;
+    availPcmBytes = sizeof(pcmData);
+
+    if ((btif_media_cb.peer_sep == AVDT_TSEP_SNK) || (btif_media_cb.rx_flush))
+    {
+        APPL_TRACE_DEBUG(" State Changed happened in this tick ");
+        return;
+    }
+#ifndef USE_AUDIO_TRACK
+    // ignore data if no one is listening
+    if (!btif_media_cb.data_channel_open)
+    {
+        APPL_TRACE_ERROR("%s Channel not open, returning", __func__);
+        return;
+    }
+#endif
+    APPL_TRACE_DEBUG("%s Number of sbc frames %d, frame_len %d",
+                     __func__, num_sbc_frames, sbc_frame_len);
+
+    for(count = 0; count < num_sbc_frames && sbc_frame_len != 0; count ++)
+    {
+        pcmBytes = availPcmBytes;
+        status = OI_CODEC_SBC_DecodeFrame(&context, (const OI_BYTE**)&sbc_start_frame,
+                                                        (OI_UINT32 *)&sbc_frame_len,
+                                                        (OI_INT16 *)pcmDataPointer,
+                                                        (OI_UINT32 *)&pcmBytes);
+        if (!OI_SUCCESS(status)) {
+            APPL_TRACE_ERROR("Decoding failure: %d\n", status);
+            break;
+        }
+        availPcmBytes -= pcmBytes;
+        pcmDataPointer += pcmBytes/2;
+        p_msg->offset += (p_msg->len - 1) - sbc_frame_len;
+        p_msg->len = sbc_frame_len + 1;
+    }
+
+#ifdef USE_AUDIO_TRACK
+    BtifAvrcpAudioTrackWriteData(
+        btif_media_cb.audio_track, (void*)pcmData, (sizeof(pcmData) - availPcmBytes));
+#else
+    UIPC_Send(UIPC_CH_ID_AV_AUDIO, 0, (UINT8 *)pcmData, (sizeof(pcmData) - availPcmBytes));
+#endif
+}
+#endif
+
+#if (BTA_AV_INCLUDED == TRUE)
+/*******************************************************************************
+ **
+ ** Function         btif_media_task_enc_init_req
+ **
+ ** Description
+ **
+ ** Returns          TRUE is success
+ **
+ *******************************************************************************/
+BOOLEAN btif_media_task_enc_init_req(tBTIF_MEDIA_INIT_AUDIO *p_msg)
+{
+    tBTIF_MEDIA_INIT_AUDIO *p_buf = osi_malloc(sizeof(tBTIF_MEDIA_INIT_AUDIO));
+
+    memcpy(p_buf, p_msg, sizeof(tBTIF_MEDIA_INIT_AUDIO));
+    p_buf->hdr.event = BTIF_MEDIA_SBC_ENC_INIT;
+    fixed_queue_enqueue(btif_media_cmd_msg_queue, p_buf);
+
+    return TRUE;
+}
+
+/*******************************************************************************
+ **
+ ** Function         btif_media_task_enc_update_req
+ **
+ ** Description
+ **
+ ** Returns          TRUE is success
+ **
+ *******************************************************************************/
+BOOLEAN btif_media_task_enc_update_req(tBTIF_MEDIA_UPDATE_AUDIO *p_msg)
+{
+    tBTIF_MEDIA_UPDATE_AUDIO *p_buf =
+        osi_malloc(sizeof(tBTIF_MEDIA_UPDATE_AUDIO));
+
+    memcpy(p_buf, p_msg, sizeof(tBTIF_MEDIA_UPDATE_AUDIO));
+    p_buf->hdr.event = BTIF_MEDIA_SBC_ENC_UPDATE;
+    fixed_queue_enqueue(btif_media_cmd_msg_queue, p_buf);
+
+    return TRUE;
+}
+
+/*******************************************************************************
+ **
+ ** Function         btif_media_task_audio_feeding_init_req
+ **
+ ** Description
+ **
+ ** Returns          TRUE is success
+ **
+ *******************************************************************************/
+BOOLEAN btif_media_task_audio_feeding_init_req(tBTIF_MEDIA_INIT_AUDIO_FEEDING *p_msg)
+{
+    tBTIF_MEDIA_INIT_AUDIO_FEEDING *p_buf =
+        osi_malloc(sizeof(tBTIF_MEDIA_INIT_AUDIO_FEEDING));
+
+    memcpy(p_buf, p_msg, sizeof(tBTIF_MEDIA_INIT_AUDIO_FEEDING));
+    p_buf->hdr.event = BTIF_MEDIA_AUDIO_FEEDING_INIT;
+    fixed_queue_enqueue(btif_media_cmd_msg_queue, p_buf);
+
+    return TRUE;
+}
+
+/*******************************************************************************
+ **
+ ** Function         btif_media_task_start_aa_req
+ **
+ ** Description
+ **
+ ** Returns          TRUE is success
+ **
+ *******************************************************************************/
+BOOLEAN btif_media_task_start_aa_req(void)
+{
+    BT_HDR *p_buf = osi_malloc(sizeof(BT_HDR));
+
+    p_buf->event = BTIF_MEDIA_START_AA_TX;
+    fixed_queue_enqueue(btif_media_cmd_msg_queue, p_buf);
+
+    return TRUE;
+}
+
+/*******************************************************************************
+ **
+ ** Function         btif_media_task_stop_aa_req
+ **
+ ** Description
+ **
+ ** Returns          TRUE is success
+ **
+ *******************************************************************************/
+BOOLEAN btif_media_task_stop_aa_req(void)
+{
+    BT_HDR *p_buf = osi_malloc(sizeof(BT_HDR));
+
+    p_buf->event = BTIF_MEDIA_STOP_AA_TX;
+
+    /*
+     * Explicitly check whether the btif_media_cmd_msg_queue is not NULL to
+     * avoid a race condition during shutdown of the Bluetooth stack.
+     * This race condition is triggered when A2DP audio is streaming on
+     * shutdown:
+     * "btif_a2dp_on_stopped() -> btif_media_task_stop_aa_req()" is called
+     * to stop the particular audio stream, and this happens right after
+     * the "cleanup() -> btif_a2dp_stop_media_task()" processing during
+     * the shutdown of the Bluetooth stack.
+     */
+    if (btif_media_cmd_msg_queue != NULL)
+        fixed_queue_enqueue(btif_media_cmd_msg_queue, p_buf);
+
+    return TRUE;
+}
+/*******************************************************************************
+ **
+ ** Function         btif_media_task_aa_rx_flush_req
+ **
+ ** Description
+ **
+ ** Returns          TRUE is success
+ **
+ *******************************************************************************/
+BOOLEAN btif_media_task_aa_rx_flush_req(void)
+{
+    if (fixed_queue_is_empty(btif_media_cb.RxSbcQ)) /*  Que is already empty */
+        return TRUE;
+
+    BT_HDR *p_buf = osi_malloc(sizeof(BT_HDR));
+    p_buf->event = BTIF_MEDIA_FLUSH_AA_RX;
+    fixed_queue_enqueue(btif_media_cmd_msg_queue, p_buf);
+
+    return TRUE;
+}
+
+/*******************************************************************************
+ **
+ ** Function         btif_media_task_aa_tx_flush_req
+ **
+ ** Description
+ **
+ ** Returns          TRUE is success
+ **
+ *******************************************************************************/
+BOOLEAN btif_media_task_aa_tx_flush_req(void)
+{
+    BT_HDR *p_buf = osi_malloc(sizeof(BT_HDR));
+
+    p_buf->event = BTIF_MEDIA_FLUSH_AA_TX;
+
+    /*
+     * Explicitly check whether the btif_media_cmd_msg_queue is not NULL to
+     * avoid a race condition during shutdown of the Bluetooth stack.
+     * This race condition is triggered when A2DP audio is streaming on
+     * shutdown:
+     * "btif_a2dp_on_stopped() -> btif_media_task_aa_tx_flush_req()" is called
+     * to stop the particular audio stream, and this happens right after
+     * the "cleanup() -> btif_a2dp_stop_media_task()" processing during
+     * the shutdown of the Bluetooth stack.
+     */
+    if (btif_media_cmd_msg_queue != NULL)
+        fixed_queue_enqueue(btif_media_cmd_msg_queue, p_buf);
+
+    return TRUE;
+}
+/*******************************************************************************
+ **
+ ** Function         btif_media_task_aa_rx_flush
+ **
+ ** Description
+ **
+ ** Returns          void
+ **
+ *******************************************************************************/
+static void btif_media_task_aa_rx_flush(void)
+{
+    /* Flush all enqueued GKI SBC  buffers (encoded) */
+    APPL_TRACE_DEBUG("btif_media_task_aa_rx_flush");
+
+    btif_media_flush_q(btif_media_cb.RxSbcQ);
+}
+
+
+/*******************************************************************************
+ **
+ ** Function         btif_media_task_aa_tx_flush
+ **
+ ** Description
+ **
+ ** Returns          void
+ **
+ *******************************************************************************/
+static void btif_media_task_aa_tx_flush(BT_HDR *p_msg)
+{
+    UNUSED(p_msg);
+
+    /* Flush all enqueued GKI music buffers (encoded) */
+    APPL_TRACE_DEBUG("btif_media_task_aa_tx_flush");
+
+    btif_media_cb.media_feeding_state.pcm.counter = 0;
+    btif_media_cb.media_feeding_state.pcm.aa_feed_residue = 0;
+
+    btif_media_cb.stats.tx_queue_total_flushed_messages +=
+        fixed_queue_length(btif_media_cb.TxAaQ);
+    btif_media_cb.stats.tx_queue_last_flushed_us = time_now_us();
+    btif_media_flush_q(btif_media_cb.TxAaQ);
+
+    UIPC_Ioctl(UIPC_CH_ID_AV_AUDIO, UIPC_REQ_RX_FLUSH, NULL);
+}
+
+/*******************************************************************************
+ **
+ ** Function       btif_media_task_enc_init
+ **
+ ** Description    Initialize encoding task
+ **
+ ** Returns        void
+ **
+ *******************************************************************************/
+static void btif_media_task_enc_init(BT_HDR *p_msg)
+{
+    tBTIF_MEDIA_INIT_AUDIO *pInitAudio = (tBTIF_MEDIA_INIT_AUDIO *) p_msg;
+
+    APPL_TRACE_DEBUG("btif_media_task_enc_init");
+
+    btif_media_cb.timestamp = 0;
+
+    /* SBC encoder config (enforced even if not used) */
+    btif_media_cb.encoder.s16ChannelMode = pInitAudio->ChannelMode;
+    btif_media_cb.encoder.s16NumOfSubBands = pInitAudio->NumOfSubBands;
+    btif_media_cb.encoder.s16NumOfBlocks = pInitAudio->NumOfBlocks;
+    btif_media_cb.encoder.s16AllocationMethod = pInitAudio->AllocationMethod;
+    btif_media_cb.encoder.s16SamplingFreq = pInitAudio->SamplingFreq;
+
+    btif_media_cb.encoder.u16BitRate = btif_media_task_get_sbc_rate();
+
+    /* Default transcoding is PCM to SBC, modified by feeding configuration */
+    btif_media_cb.TxTranscoding = BTIF_MEDIA_TRSCD_PCM_2_SBC;
+    btif_media_cb.TxAaMtuSize = ((BTIF_MEDIA_AA_BUF_SIZE-BTIF_MEDIA_AA_SBC_OFFSET-sizeof(BT_HDR))
+            < pInitAudio->MtuSize) ? (BTIF_MEDIA_AA_BUF_SIZE - BTIF_MEDIA_AA_SBC_OFFSET
+            - sizeof(BT_HDR)) : pInitAudio->MtuSize;
+
+    APPL_TRACE_EVENT("btif_media_task_enc_init busy %d, mtu %d, peer mtu %d",
+                     btif_media_cb.busy_level, btif_media_cb.TxAaMtuSize, pInitAudio->MtuSize);
+    APPL_TRACE_EVENT("      ch mode %d, subnd %d, nb blk %d, alloc %d, rate %d, freq %d",
+            btif_media_cb.encoder.s16ChannelMode, btif_media_cb.encoder.s16NumOfSubBands,
+            btif_media_cb.encoder.s16NumOfBlocks,
+            btif_media_cb.encoder.s16AllocationMethod, btif_media_cb.encoder.u16BitRate,
+            btif_media_cb.encoder.s16SamplingFreq);
+
+#ifdef BLUETOOTH_RTK_COEX
+    rtk_parse_manager_get_interface()->rtk_add_bitpool_to_fw(btif_media_cb.encoder.s16BitPool);
+#endif
+    /* Reset entirely the SBC encoder */
+    SBC_Encoder_Init(&(btif_media_cb.encoder));
+
+    btif_media_cb.tx_sbc_frames = calculate_max_frames_per_packet();
+
+    APPL_TRACE_DEBUG("%s bit pool %d", __func__, btif_media_cb.encoder.s16BitPool);
+}
+
+/*******************************************************************************
+ **
+ ** Function       btif_media_task_enc_update
+ **
+ ** Description    Update encoding task
+ **
+ ** Returns        void
+ **
+ *******************************************************************************/
+
+static void btif_media_task_enc_update(BT_HDR *p_msg)
+{
+    tBTIF_MEDIA_UPDATE_AUDIO * pUpdateAudio = (tBTIF_MEDIA_UPDATE_AUDIO *) p_msg;
+    SBC_ENC_PARAMS *pstrEncParams = &btif_media_cb.encoder;
+    UINT16 s16SamplingFreq;
+    SINT16 s16BitPool = 0;
+    SINT16 s16BitRate;
+    SINT16 s16FrameLen;
+    UINT8 protect = 0;
+
+    APPL_TRACE_DEBUG("%s : minmtu %d, maxbp %d minbp %d", __func__,
+                     pUpdateAudio->MinMtuSize, pUpdateAudio->MaxBitPool,
+                     pUpdateAudio->MinBitPool);
+
+    if (!pstrEncParams->s16NumOfSubBands)
+    {
+        APPL_TRACE_WARNING("%s SubBands are set to 0, resetting to max (%d)",
+          __func__, SBC_MAX_NUM_OF_SUBBANDS);
+        pstrEncParams->s16NumOfSubBands = SBC_MAX_NUM_OF_SUBBANDS;
+    }
+
+    if (!pstrEncParams->s16NumOfBlocks)
+    {
+        APPL_TRACE_WARNING("%s Blocks are set to 0, resetting to max (%d)",
+          __func__, SBC_MAX_NUM_OF_BLOCKS);
+        pstrEncParams->s16NumOfBlocks = SBC_MAX_NUM_OF_BLOCKS;
+    }
+
+    if (!pstrEncParams->s16NumOfChannels)
+    {
+        APPL_TRACE_WARNING("%s Channels are set to 0, resetting to max (%d)",
+          __func__, SBC_MAX_NUM_OF_CHANNELS);
+        pstrEncParams->s16NumOfChannels = SBC_MAX_NUM_OF_CHANNELS;
+    }
+
+    btif_media_cb.TxAaMtuSize = ((BTIF_MEDIA_AA_BUF_SIZE -
+                                  BTIF_MEDIA_AA_SBC_OFFSET - sizeof(BT_HDR))
+            < pUpdateAudio->MinMtuSize) ? (BTIF_MEDIA_AA_BUF_SIZE - BTIF_MEDIA_AA_SBC_OFFSET
+            - sizeof(BT_HDR)) : pUpdateAudio->MinMtuSize;
+
+    /* Set the initial target bit rate */
+    pstrEncParams->u16BitRate = btif_media_task_get_sbc_rate();
+
+    if (pstrEncParams->s16SamplingFreq == SBC_sf16000)
+        s16SamplingFreq = 16000;
+    else if (pstrEncParams->s16SamplingFreq == SBC_sf32000)
+        s16SamplingFreq = 32000;
+    else if (pstrEncParams->s16SamplingFreq == SBC_sf44100)
+        s16SamplingFreq = 44100;
+    else
+        s16SamplingFreq = 48000;
+
+    do {
+        if (pstrEncParams->s16NumOfBlocks == 0 ||
+            pstrEncParams->s16NumOfSubBands == 0 ||
+            pstrEncParams->s16NumOfChannels == 0) {
+            APPL_TRACE_ERROR("%s - Avoiding division by zero...", __func__);
+            APPL_TRACE_ERROR("%s - block=%d, subBands=%d, channels=%d",
+                             __func__,
+                             pstrEncParams->s16NumOfBlocks,
+                             pstrEncParams->s16NumOfSubBands,
+                             pstrEncParams->s16NumOfChannels);
+            break;
+        }
+
+        if ((pstrEncParams->s16ChannelMode == SBC_JOINT_STEREO) ||
+            (pstrEncParams->s16ChannelMode == SBC_STEREO)) {
+            s16BitPool = (SINT16)((pstrEncParams->u16BitRate *
+                    pstrEncParams->s16NumOfSubBands * 1000 / s16SamplingFreq)
+                    - ((32 + (4 * pstrEncParams->s16NumOfSubBands *
+                    pstrEncParams->s16NumOfChannels)
+                    + ((pstrEncParams->s16ChannelMode - 2) *
+                    pstrEncParams->s16NumOfSubBands))
+                    / pstrEncParams->s16NumOfBlocks));
+
+            s16FrameLen = 4 + (4*pstrEncParams->s16NumOfSubBands *
+                    pstrEncParams->s16NumOfChannels) / 8
+                    + (((pstrEncParams->s16ChannelMode - 2) *
+                    pstrEncParams->s16NumOfSubBands)
+                    + (pstrEncParams->s16NumOfBlocks * s16BitPool)) / 8;
+
+            s16BitRate = (8 * s16FrameLen * s16SamplingFreq)
+                    / (pstrEncParams->s16NumOfSubBands *
+                    pstrEncParams->s16NumOfBlocks * 1000);
+
+            if (s16BitRate > pstrEncParams->u16BitRate)
+                s16BitPool--;
+
+            if (pstrEncParams->s16NumOfSubBands == 8)
+                s16BitPool = (s16BitPool > 255) ? 255 : s16BitPool;
+            else
+                s16BitPool = (s16BitPool > 128) ? 128 : s16BitPool;
+        } else {
+            s16BitPool = (SINT16)(((pstrEncParams->s16NumOfSubBands *
+                    pstrEncParams->u16BitRate * 1000)
+                    / (s16SamplingFreq * pstrEncParams->s16NumOfChannels))
+                    - (((32 / pstrEncParams->s16NumOfChannels) +
+                    (4 * pstrEncParams->s16NumOfSubBands))
+                    / pstrEncParams->s16NumOfBlocks));
+
+            pstrEncParams->s16BitPool =
+                (s16BitPool > (16 * pstrEncParams->s16NumOfSubBands)) ?
+                        (16 * pstrEncParams->s16NumOfSubBands) : s16BitPool;
+        }
+
+        if (s16BitPool < 0)
+            s16BitPool = 0;
+
+        APPL_TRACE_EVENT("%s bitpool candidate : %d (%d kbps)", __func__,
+                         s16BitPool, pstrEncParams->u16BitRate);
+
+        if (s16BitPool > pUpdateAudio->MaxBitPool) {
+            APPL_TRACE_DEBUG("%s computed bitpool too large (%d)", __func__,
+                             s16BitPool);
+            /* Decrease bitrate */
+            btif_media_cb.encoder.u16BitRate -= BTIF_MEDIA_BITRATE_STEP;
+            /* Record that we have decreased the bitrate */
+            protect |= 1;
+        } else if (s16BitPool < pUpdateAudio->MinBitPool) {
+            APPL_TRACE_WARNING("%s computed bitpool too small (%d)", __func__,
+                               s16BitPool);
+
+            /* Increase bitrate */
+            UINT16 previous_u16BitRate = btif_media_cb.encoder.u16BitRate;
+            btif_media_cb.encoder.u16BitRate += BTIF_MEDIA_BITRATE_STEP;
+            /* Record that we have increased the bitrate */
+            protect |= 2;
+            /* Check over-flow */
+            if (btif_media_cb.encoder.u16BitRate < previous_u16BitRate)
+                protect |= 3;
+        } else {
+            break;
+        }
+        /* In case we have already increased and decreased the bitrate, just stop */
+        if (protect == 3) {
+            APPL_TRACE_ERROR("%s could not find bitpool in range", __func__);
+            break;
+        }
+    } while (1);
+
+    /* Finally update the bitpool in the encoder structure */
+    pstrEncParams->s16BitPool = s16BitPool;
+
+    APPL_TRACE_DEBUG("%s final bit rate %d, final bit pool %d", __func__,
+                     btif_media_cb.encoder.u16BitRate,
+                     btif_media_cb.encoder.s16BitPool);
+
+    /* make sure we reinitialize encoder with new settings */
+    SBC_Encoder_Init(&(btif_media_cb.encoder));
+
+    btif_media_cb.tx_sbc_frames = calculate_max_frames_per_packet();
+}
+
+/*******************************************************************************
+ **
+ ** Function         btif_media_task_pcm2sbc_init
+ **
+ ** Description      Init encoding task for PCM to SBC according to feeding
+ **
+ ** Returns          void
+ **
+ *******************************************************************************/
+static void btif_media_task_pcm2sbc_init(tBTIF_MEDIA_INIT_AUDIO_FEEDING * p_feeding)
+{
+    BOOLEAN reconfig_needed = FALSE;
+
+    APPL_TRACE_DEBUG("PCM feeding:");
+    APPL_TRACE_DEBUG("sampling_freq:%d", p_feeding->feeding.cfg.pcm.sampling_freq);
+    APPL_TRACE_DEBUG("num_channel:%d", p_feeding->feeding.cfg.pcm.num_channel);
+    APPL_TRACE_DEBUG("bit_per_sample:%d", p_feeding->feeding.cfg.pcm.bit_per_sample);
+
+    /* Check the PCM feeding sampling_freq */
+    switch (p_feeding->feeding.cfg.pcm.sampling_freq)
+    {
+        case  8000:
+        case 12000:
+        case 16000:
+        case 24000:
+        case 32000:
+        case 48000:
+            /* For these sampling_freq the AV connection must be 48000 */
+            if (btif_media_cb.encoder.s16SamplingFreq != SBC_sf48000)
+            {
+                /* Reconfiguration needed at 48000 */
+                APPL_TRACE_DEBUG("SBC Reconfiguration needed at 48000");
+                btif_media_cb.encoder.s16SamplingFreq = SBC_sf48000;
+                reconfig_needed = TRUE;
+            }
+            break;
+
+        case 11025:
+        case 22050:
+        case 44100:
+            /* For these sampling_freq the AV connection must be 44100 */
+            if (btif_media_cb.encoder.s16SamplingFreq != SBC_sf44100)
+            {
+                /* Reconfiguration needed at 44100 */
+                APPL_TRACE_DEBUG("SBC Reconfiguration needed at 44100");
+                btif_media_cb.encoder.s16SamplingFreq = SBC_sf44100;
+                reconfig_needed = TRUE;
+            }
+            break;
+        default:
+            APPL_TRACE_DEBUG("Feeding PCM sampling_freq unsupported");
+            break;
+    }
+
+    /* Some AV Headsets do not support Mono => always ask for Stereo */
+    if (btif_media_cb.encoder.s16ChannelMode == SBC_MONO)
+    {
+        APPL_TRACE_DEBUG("SBC Reconfiguration needed in Stereo");
+        btif_media_cb.encoder.s16ChannelMode = SBC_JOINT_STEREO;
+        reconfig_needed = TRUE;
+    }
+
+    if (reconfig_needed != FALSE)
+    {
+        APPL_TRACE_DEBUG("btif_media_task_pcm2sbc_init :: mtu %d", btif_media_cb.TxAaMtuSize);
+        APPL_TRACE_DEBUG("ch mode %d, nbsubd %d, nb %d, alloc %d, rate %d, freq %d",
+                btif_media_cb.encoder.s16ChannelMode,
+                btif_media_cb.encoder.s16NumOfSubBands, btif_media_cb.encoder.s16NumOfBlocks,
+                btif_media_cb.encoder.s16AllocationMethod, btif_media_cb.encoder.u16BitRate,
+                btif_media_cb.encoder.s16SamplingFreq);
+
+        SBC_Encoder_Init(&(btif_media_cb.encoder));
+    }
+    else
+    {
+        APPL_TRACE_DEBUG("btif_media_task_pcm2sbc_init no SBC reconfig needed");
+    }
+}
+
+
+/*******************************************************************************
+ **
+ ** Function         btif_media_task_audio_feeding_init
+ **
+ ** Description      Initialize the audio path according to the feeding format
+ **
+ ** Returns          void
+ **
+ *******************************************************************************/
+static void btif_media_task_audio_feeding_init(BT_HDR *p_msg)
+{
+    tBTIF_MEDIA_INIT_AUDIO_FEEDING *p_feeding = (tBTIF_MEDIA_INIT_AUDIO_FEEDING *) p_msg;
+
+    APPL_TRACE_DEBUG("btif_media_task_audio_feeding_init format:%d", p_feeding->feeding.format);
+
+    /* Save Media Feeding information */
+    btif_media_cb.feeding_mode = p_feeding->feeding_mode;
+    btif_media_cb.media_feeding = p_feeding->feeding;
+
+    /* Handle different feeding formats */
+    switch (p_feeding->feeding.format)
+    {
+        case BTIF_AV_CODEC_PCM:
+            btif_media_cb.TxTranscoding = BTIF_MEDIA_TRSCD_PCM_2_SBC;
+            btif_media_task_pcm2sbc_init(p_feeding);
+            break;
+
+        default :
+            APPL_TRACE_ERROR("unknown feeding format %d", p_feeding->feeding.format);
+            break;
+    }
+}
+
+int btif_a2dp_get_track_frequency(UINT8 frequency) {
+    int freq = 48000;
+    switch (frequency) {
+        case A2D_SBC_IE_SAMP_FREQ_16:
+            freq = 16000;
+            break;
+        case A2D_SBC_IE_SAMP_FREQ_32:
+            freq = 32000;
+            break;
+        case A2D_SBC_IE_SAMP_FREQ_44:
+            freq = 44100;
+            break;
+        case A2D_SBC_IE_SAMP_FREQ_48:
+            freq = 48000;
+            break;
+    }
+    return freq;
+}
+
+int btif_a2dp_get_track_channel_count(UINT8 channeltype) {
+    int count = 1;
+    switch (channeltype) {
+        case A2D_SBC_IE_CH_MD_MONO:
+            count = 1;
+            break;
+        case A2D_SBC_IE_CH_MD_DUAL:
+        case A2D_SBC_IE_CH_MD_STEREO:
+        case A2D_SBC_IE_CH_MD_JOINT:
+            count = 2;
+            break;
+    }
+    return count;
+}
+
+#ifdef USE_AUDIO_TRACK
+int a2dp_get_track_channel_type(UINT8 channeltype) {
+    int count = 1;
+    switch (channeltype) {
+        case A2D_SBC_IE_CH_MD_MONO:
+            count = 1;
+            break;
+        case A2D_SBC_IE_CH_MD_DUAL:
+        case A2D_SBC_IE_CH_MD_STEREO:
+        case A2D_SBC_IE_CH_MD_JOINT:
+            count = 3;
+            break;
+    }
+    return count;
+}
+#endif
+
+void btif_a2dp_set_peer_sep(UINT8 sep) {
+    btif_media_cb.peer_sep = sep;
+}
+
+static void btif_decode_alarm_cb(UNUSED_ATTR void *context) {
+  if(worker_thread != NULL)
+      thread_post(worker_thread, btif_media_task_avk_handle_timer, NULL);
+}
+
+static void btif_media_task_aa_handle_stop_decoding(void) {
+  alarm_free(btif_media_cb.decode_alarm);
+  btif_media_cb.decode_alarm = NULL;
+#ifdef USE_AUDIO_TRACK
+  BtifAvrcpAudioTrackPause(btif_media_cb.audio_track);
+#endif
+}
+
+static void btif_media_task_aa_handle_start_decoding(void) {
+  if (btif_media_cb.decode_alarm)
+    return;
+#ifdef USE_AUDIO_TRACK
+  BtifAvrcpAudioTrackStart(btif_media_cb.audio_track);
+#endif
+  btif_media_cb.decode_alarm = alarm_new_periodic("btif.media_decode");
+  if (!btif_media_cb.decode_alarm) {
+    LOG_ERROR(LOG_TAG, "%s unable to allocate decode alarm.", __func__);
+    return;
+  }
+
+  alarm_set(btif_media_cb.decode_alarm, BTIF_SINK_MEDIA_TIME_TICK_MS,
+            btif_decode_alarm_cb, NULL);
+}
+
+#if (BTA_AV_SINK_INCLUDED == TRUE)
+
+static void btif_media_task_aa_handle_clear_track (void)
+{
+    APPL_TRACE_DEBUG("btif_media_task_aa_handle_clear_track");
+#ifdef USE_AUDIO_TRACK
+    BtifAvrcpAudioTrackStop(btif_media_cb.audio_track);
+    BtifAvrcpAudioTrackDelete(btif_media_cb.audio_track);
+    btif_media_cb.audio_track = NULL;
+#endif
+}
+
+/*******************************************************************************
+ **
+ ** Function         btif_media_task_aa_handle_decoder_reset
+ **
+ ** Description
+ **
+ ** Returns          void
+ **
+ *******************************************************************************/
+static void btif_media_task_aa_handle_decoder_reset(BT_HDR *p_msg)
+{
+    tBTIF_MEDIA_SINK_CFG_UPDATE *p_buf = (tBTIF_MEDIA_SINK_CFG_UPDATE*) p_msg;
+    tA2D_STATUS a2d_status;
+    tA2D_SBC_CIE sbc_cie;
+    OI_STATUS       status;
+    UINT32          freq_multiple = 48*20; /* frequency multiple for 20ms of data , initialize with 48K*/
+    UINT32          num_blocks = 16;
+    UINT32          num_subbands = 8;
+
+    APPL_TRACE_DEBUG("btif_media_task_aa_handle_decoder_reset p_codec_info[%x:%x:%x:%x:%x:%x]",
+            p_buf->codec_info[1], p_buf->codec_info[2], p_buf->codec_info[3],
+            p_buf->codec_info[4], p_buf->codec_info[5], p_buf->codec_info[6]);
+
+    a2d_status = A2D_ParsSbcInfo(&sbc_cie, p_buf->codec_info, FALSE);
+    if (a2d_status != A2D_SUCCESS)
+    {
+        APPL_TRACE_ERROR("ERROR dump_codec_info A2D_ParsSbcInfo fail:%d", a2d_status);
+        return;
+    }
+
+    btif_media_cb.sample_rate = btif_a2dp_get_track_frequency(sbc_cie.samp_freq);
+    btif_media_cb.channel_count = btif_a2dp_get_track_channel_count(sbc_cie.ch_mode);
+
+    btif_media_cb.rx_flush = FALSE;
+    APPL_TRACE_DEBUG("Reset to sink role");
+    status = OI_CODEC_SBC_DecoderReset(&context, contextData, sizeof(contextData), 2, 2, FALSE);
+    if (!OI_SUCCESS(status)) {
+        APPL_TRACE_ERROR("OI_CODEC_SBC_DecoderReset failed with error code %d\n", status);
+    }
+
+#ifdef USE_AUDIO_TRACK
+    APPL_TRACE_DEBUG("%s A2dpSink: sbc Create Track", __func__);
+    btif_media_cb.audio_track =
+        BtifAvrcpAudioTrackCreate(btif_a2dp_get_track_frequency(sbc_cie.samp_freq),
+                                  a2dp_get_track_channel_type(sbc_cie.ch_mode));
+    if (btif_media_cb.audio_track == NULL) {
+        APPL_TRACE_ERROR("%s A2dpSink: Track creation fails!!!", __func__);
+        return;
+    }
+#else
+    UIPC_Open(UIPC_CH_ID_AV_AUDIO, btif_a2dp_data_cb);
+#endif
+
+    switch (sbc_cie.samp_freq)
+    {
+        case A2D_SBC_IE_SAMP_FREQ_16:
+            APPL_TRACE_DEBUG("\tsamp_freq:%d (16000)", sbc_cie.samp_freq);
+            freq_multiple = 16*20;
+            break;
+        case A2D_SBC_IE_SAMP_FREQ_32:
+            APPL_TRACE_DEBUG("\tsamp_freq:%d (32000)", sbc_cie.samp_freq);
+            freq_multiple = 32*20;
+            break;
+        case A2D_SBC_IE_SAMP_FREQ_44:
+            APPL_TRACE_DEBUG("\tsamp_freq:%d (44100)", sbc_cie.samp_freq);
+            freq_multiple = 441*2;
+            break;
+        case A2D_SBC_IE_SAMP_FREQ_48:
+            APPL_TRACE_DEBUG("\tsamp_freq:%d (48000)", sbc_cie.samp_freq);
+            freq_multiple = 48*20;
+            break;
+        default:
+            APPL_TRACE_DEBUG(" Unknown Frequency ");
+            break;
+    }
+
+    switch (sbc_cie.ch_mode)
+    {
+        case A2D_SBC_IE_CH_MD_MONO:
+            APPL_TRACE_DEBUG("\tch_mode:%d (Mono)", sbc_cie.ch_mode);
+            break;
+        case A2D_SBC_IE_CH_MD_DUAL:
+            APPL_TRACE_DEBUG("\tch_mode:%d (DUAL)", sbc_cie.ch_mode);
+            break;
+        case A2D_SBC_IE_CH_MD_STEREO:
+            APPL_TRACE_DEBUG("\tch_mode:%d (STEREO)", sbc_cie.ch_mode);
+            break;
+        case A2D_SBC_IE_CH_MD_JOINT:
+            APPL_TRACE_DEBUG("\tch_mode:%d (JOINT)", sbc_cie.ch_mode);
+            break;
+        default:
+            APPL_TRACE_DEBUG(" Unknown Mode ");
+            break;
+    }
+
+    switch (sbc_cie.block_len)
+    {
+        case A2D_SBC_IE_BLOCKS_4:
+            APPL_TRACE_DEBUG("\tblock_len:%d (4)", sbc_cie.block_len);
+            num_blocks = 4;
+            break;
+        case A2D_SBC_IE_BLOCKS_8:
+            APPL_TRACE_DEBUG("\tblock_len:%d (8)", sbc_cie.block_len);
+            num_blocks = 8;
+            break;
+        case A2D_SBC_IE_BLOCKS_12:
+            APPL_TRACE_DEBUG("\tblock_len:%d (12)", sbc_cie.block_len);
+            num_blocks = 12;
+            break;
+        case A2D_SBC_IE_BLOCKS_16:
+            APPL_TRACE_DEBUG("\tblock_len:%d (16)", sbc_cie.block_len);
+            num_blocks = 16;
+            break;
+        default:
+            APPL_TRACE_DEBUG(" Unknown BlockLen ");
+            break;
+    }
+
+    switch (sbc_cie.num_subbands)
+    {
+        case A2D_SBC_IE_SUBBAND_4:
+            APPL_TRACE_DEBUG("\tnum_subbands:%d (4)", sbc_cie.num_subbands);
+            num_subbands = 4;
+            break;
+        case A2D_SBC_IE_SUBBAND_8:
+            APPL_TRACE_DEBUG("\tnum_subbands:%d (8)", sbc_cie.num_subbands);
+            num_subbands = 8;
+            break;
+        default:
+            APPL_TRACE_DEBUG(" Unknown SubBands ");
+            break;
+    }
+
+    switch (sbc_cie.alloc_mthd)
+    {
+        case A2D_SBC_IE_ALLOC_MD_S:
+            APPL_TRACE_DEBUG("\talloc_mthd:%d (SNR)", sbc_cie.alloc_mthd);
+            break;
+        case A2D_SBC_IE_ALLOC_MD_L:
+            APPL_TRACE_DEBUG("\talloc_mthd:%d (Loudness)", sbc_cie.alloc_mthd);
+            break;
+        default:
+            APPL_TRACE_DEBUG(" Unknown Allocation Method");
+            break;
+    }
+
+    APPL_TRACE_DEBUG("\tBit pool Min:%d Max:%d", sbc_cie.min_bitpool, sbc_cie.max_bitpool);
+
+    btif_media_cb.frames_to_process = ((freq_multiple)/(num_blocks*num_subbands)) + 1;
+    APPL_TRACE_DEBUG(" Frames to be processed in 20 ms %d",btif_media_cb.frames_to_process);
+}
+#endif
+
+/*******************************************************************************
+ **
+ ** Function         btif_media_task_feeding_state_reset
+ **
+ ** Description      Reset the media feeding state
+ **
+ ** Returns          void
+ **
+ *******************************************************************************/
+static void btif_media_task_feeding_state_reset(void)
+{
+    /* By default, just clear the entire state */
+    memset(&btif_media_cb.media_feeding_state, 0, sizeof(btif_media_cb.media_feeding_state));
+
+    if (btif_media_cb.TxTranscoding == BTIF_MEDIA_TRSCD_PCM_2_SBC)
+    {
+        btif_media_cb.media_feeding_state.pcm.bytes_per_tick =
+                (btif_media_cb.media_feeding.cfg.pcm.sampling_freq *
+                 btif_media_cb.media_feeding.cfg.pcm.bit_per_sample / 8 *
+                 btif_media_cb.media_feeding.cfg.pcm.num_channel *
+                 BTIF_MEDIA_TIME_TICK)/1000;
+
+        APPL_TRACE_WARNING("pcm bytes per tick %d",
+                            (int)btif_media_cb.media_feeding_state.pcm.bytes_per_tick);
+    }
+}
+
+static void btif_media_task_alarm_cb(UNUSED_ATTR void *context) {
+  thread_post(worker_thread, btif_media_task_aa_handle_timer, NULL);
+}
+
+/*******************************************************************************
+ **
+ ** Function         btif_media_task_aa_start_tx
+ **
+ ** Description      Start media task encoding
+ **
+ ** Returns          void
+ **
+ *******************************************************************************/
+static void btif_media_task_aa_start_tx(void)
+{
+    APPL_TRACE_DEBUG("%s media_alarm %srunning, feeding mode %d", __func__,
+                     alarm_is_scheduled(btif_media_cb.media_alarm)? "" : "not ",
+                     btif_media_cb.feeding_mode);
+
+    last_frame_us = 0;
+
+    /* Reset the media feeding state */
+    btif_media_task_feeding_state_reset();
+
+    APPL_TRACE_EVENT("starting timer %dms", BTIF_MEDIA_TIME_TICK);
+
+    alarm_free(btif_media_cb.media_alarm);
+    btif_media_cb.media_alarm = alarm_new_periodic("btif.media_task");
+    if (!btif_media_cb.media_alarm) {
+      LOG_ERROR(LOG_TAG, "%s unable to allocate media alarm.", __func__);
+      return;
+    }
+
+    alarm_set(btif_media_cb.media_alarm, BTIF_MEDIA_TIME_TICK,
+              btif_media_task_alarm_cb, NULL);
+}
+
+/*******************************************************************************
+ **
+ ** Function         btif_media_task_aa_stop_tx
+ **
+ ** Description      Stop media task encoding
+ **
+ ** Returns          void
+ **
+ *******************************************************************************/
+static void btif_media_task_aa_stop_tx(void)
+{
+    APPL_TRACE_DEBUG("%s media_alarm is %srunning", __func__,
+                     alarm_is_scheduled(btif_media_cb.media_alarm)? "" : "not ");
+
+    const bool send_ack = alarm_is_scheduled(btif_media_cb.media_alarm);
+
+    /* Stop the timer first */
+    alarm_free(btif_media_cb.media_alarm);
+    btif_media_cb.media_alarm = NULL;
+
+    UIPC_Close(UIPC_CH_ID_AV_AUDIO);
+
+    /* Try to send acknowldegment once the media stream is
+       stopped. This will make sure that the A2DP HAL layer is
+       un-blocked on wait for acknowledgment for the sent command.
+       This resolves a corner cases AVDTP SUSPEND collision
+       when the DUT and the remote device issue SUSPEND simultaneously
+       and due to the processing of the SUSPEND request from the remote,
+       the media path is torn down. If the A2DP HAL happens to wait
+       for ACK for the initiated SUSPEND, it would never receive it casuing
+       a block/wait. Due to this acknowledgement, the A2DP HAL is guranteed
+       to get the ACK for any pending command in such cases. */
+
+    if (send_ack)
+        a2dp_cmd_acknowledge(A2DP_CTRL_ACK_SUCCESS);
+
+    /* audio engine stopped, reset tx suspended flag */
+    btif_media_cb.tx_flush = 0;
+    last_frame_us = 0;
+
+    /* Reset the media feeding state */
+    btif_media_task_feeding_state_reset();
+}
+
+static UINT32 get_frame_length()
+{
+    UINT32 frame_len = 0;
+    APPL_TRACE_DEBUG("%s channel mode: %d, sub-band: %d, number of block: %d, \
+            bitpool: %d, sampling frequency: %d, num channels: %d",
+            __func__,
+            btif_media_cb.encoder.s16ChannelMode,
+            btif_media_cb.encoder.s16NumOfSubBands,
+            btif_media_cb.encoder.s16NumOfBlocks,
+            btif_media_cb.encoder.s16BitPool,
+            btif_media_cb.encoder.s16SamplingFreq,
+            btif_media_cb.encoder.s16NumOfChannels);
+
+    switch (btif_media_cb.encoder.s16ChannelMode) {
+        case SBC_MONO:
+            /* FALLTHROUGH */
+        case SBC_DUAL:
+            frame_len = SBC_FRAME_HEADER_SIZE_BYTES +
+                ((UINT32)(SBC_SCALE_FACTOR_BITS * btif_media_cb.encoder.s16NumOfSubBands *
+                btif_media_cb.encoder.s16NumOfChannels) / CHAR_BIT) +
+                ((UINT32)(btif_media_cb.encoder.s16NumOfBlocks *
+                btif_media_cb.encoder.s16NumOfChannels *
+                btif_media_cb.encoder.s16BitPool) / CHAR_BIT);
+            break;
+        case SBC_STEREO:
+            frame_len = SBC_FRAME_HEADER_SIZE_BYTES +
+                ((UINT32)(SBC_SCALE_FACTOR_BITS * btif_media_cb.encoder.s16NumOfSubBands *
+                btif_media_cb.encoder.s16NumOfChannels) / CHAR_BIT) +
+                ((UINT32)(btif_media_cb.encoder.s16NumOfBlocks *
+                btif_media_cb.encoder.s16BitPool) / CHAR_BIT);
+            break;
+        case SBC_JOINT_STEREO:
+            frame_len = SBC_FRAME_HEADER_SIZE_BYTES +
+                ((UINT32)(SBC_SCALE_FACTOR_BITS * btif_media_cb.encoder.s16NumOfSubBands *
+                btif_media_cb.encoder.s16NumOfChannels) / CHAR_BIT) +
+                ((UINT32)(btif_media_cb.encoder.s16NumOfSubBands +
+                (btif_media_cb.encoder.s16NumOfBlocks *
+                btif_media_cb.encoder.s16BitPool)) / CHAR_BIT);
+            break;
+        default:
+            APPL_TRACE_DEBUG("%s Invalid channel number: %d",
+                __func__, btif_media_cb.encoder.s16ChannelMode);
+            break;
+    }
+    APPL_TRACE_DEBUG("%s calculated frame length: %d", __func__, frame_len);
+    return frame_len;
+}
+
+static UINT8 calculate_max_frames_per_packet()
+{
+    UINT16 result = 0;
+    UINT16 effective_mtu_size = btif_media_cb.TxAaMtuSize;
+    UINT32 frame_len;
+
+    APPL_TRACE_DEBUG("%s original AVDTP MTU size: %d", __func__, btif_media_cb.TxAaMtuSize);
+    if (btif_av_is_peer_edr() && (btif_av_peer_supports_3mbps() == FALSE)) {
+        // This condition would be satisfied only if the remote device is
+        // EDR and supports only 2 Mbps, but the effective AVDTP MTU size
+        // exceeds the 2DH5 packet size.
+        APPL_TRACE_DEBUG("%s The remote devce is EDR but does not support 3 Mbps", __func__);
+
+        if (effective_mtu_size > MAX_2MBPS_AVDTP_MTU) {
+            APPL_TRACE_WARNING("%s Restricting AVDTP MTU size to %d",
+                __func__, MAX_2MBPS_AVDTP_MTU);
+            effective_mtu_size = MAX_2MBPS_AVDTP_MTU;
+            btif_media_cb.TxAaMtuSize = effective_mtu_size;
+        }
+    }
+
+    if (!btif_media_cb.encoder.s16NumOfSubBands) {
+        APPL_TRACE_ERROR("%s SubBands are set to 0, resetting to %d",
+            __func__, SBC_MAX_NUM_OF_SUBBANDS);
+        btif_media_cb.encoder.s16NumOfSubBands = SBC_MAX_NUM_OF_SUBBANDS;
+    }
+    if (!btif_media_cb.encoder.s16NumOfBlocks) {
+        APPL_TRACE_ERROR("%s Blocks are set to 0, resetting to %d",
+            __func__, SBC_MAX_NUM_OF_BLOCKS);
+        btif_media_cb.encoder.s16NumOfBlocks = SBC_MAX_NUM_OF_BLOCKS;
+    }
+    if (!btif_media_cb.encoder.s16NumOfChannels) {
+        APPL_TRACE_ERROR("%s Channels are set to 0, resetting to %d",
+            __func__, SBC_MAX_NUM_OF_CHANNELS);
+        btif_media_cb.encoder.s16NumOfChannels = SBC_MAX_NUM_OF_CHANNELS;
+    }
+
+    frame_len = get_frame_length();
+
+    APPL_TRACE_DEBUG("%s Effective Tx MTU to be considered: %d",
+        __func__, effective_mtu_size);
+
+    switch (btif_media_cb.encoder.s16SamplingFreq) {
+        case SBC_sf44100:
+            if (frame_len == 0) {
+                APPL_TRACE_ERROR("%s Calculating frame length, \
+                                        resetting it to default 119", __func__);
+                frame_len = MAX_SBC_HQ_FRAME_SIZE_44_1;
+            }
+            result = (effective_mtu_size - A2DP_HDR_SIZE) / frame_len;
+            APPL_TRACE_DEBUG("%s Max number of SBC frames: %d", __func__, result);
+            break;
+
+        case SBC_sf48000:
+            if (frame_len == 0) {
+                APPL_TRACE_ERROR("%s Calculating frame length, \
+                                        resetting it to default 115", __func__);
+                frame_len = MAX_SBC_HQ_FRAME_SIZE_48;
+            }
+            result = (effective_mtu_size - A2DP_HDR_SIZE) / frame_len;
+            APPL_TRACE_DEBUG("%s Max number of SBC frames: %d", __func__, result);
+            break;
+
+        default:
+            APPL_TRACE_ERROR("%s Max number of SBC frames: %d", __func__, result);
+            break;
+
+    }
+    return result;
+}
+
+/*******************************************************************************
+ **
+ ** Function         btif_get_num_aa_frame_iteration
+ **
+ ** Description      returns number of frames to send and number of iterations
+ **                  to be used. num_of_ietrations and num_of_frames parameters
+ **                  are used as output param for returning the respective values
+ **
+ ** Returns          void
+ **
+ *******************************************************************************/
+static void btif_get_num_aa_frame_iteration(UINT8 *num_of_iterations, UINT8 *num_of_frames)
+{
+    UINT8 nof = 0;
+    UINT8 noi = 1;
+
+    switch (btif_media_cb.TxTranscoding)
+    {
+        case BTIF_MEDIA_TRSCD_PCM_2_SBC:
+        {
+            UINT32 projected_nof = 0;
+            UINT32 pcm_bytes_per_frame = btif_media_cb.encoder.s16NumOfSubBands *
+                             btif_media_cb.encoder.s16NumOfBlocks *
+                             btif_media_cb.media_feeding.cfg.pcm.num_channel *
+                             btif_media_cb.media_feeding.cfg.pcm.bit_per_sample / 8;
+            APPL_TRACE_DEBUG("%s pcm_bytes_per_frame %u", __func__, pcm_bytes_per_frame);
+
+            UINT32 us_this_tick = BTIF_MEDIA_TIME_TICK * 1000;
+            UINT64 now_us = time_now_us();
+            if (last_frame_us != 0)
+                us_this_tick = (now_us - last_frame_us);
+            last_frame_us = now_us;
+
+            btif_media_cb.media_feeding_state.pcm.counter +=
+                                btif_media_cb.media_feeding_state.pcm.bytes_per_tick *
+                                us_this_tick / (BTIF_MEDIA_TIME_TICK * 1000);
+
+            /* calculate nbr of frames pending for this media tick */
+            projected_nof = btif_media_cb.media_feeding_state.pcm.counter / pcm_bytes_per_frame;
+            if (projected_nof > btif_media_cb.stats.media_read_max_expected_frames)
+                btif_media_cb.stats.media_read_max_expected_frames = projected_nof;
+            btif_media_cb.stats.media_read_total_expected_frames += projected_nof;
+            btif_media_cb.stats.media_read_expected_count++;
+            if (projected_nof > MAX_PCM_FRAME_NUM_PER_TICK)
+            {
+                APPL_TRACE_WARNING("%s() - Limiting frames to be sent from %d to %d"
+                    , __FUNCTION__, projected_nof, MAX_PCM_FRAME_NUM_PER_TICK);
+                size_t delta = projected_nof - MAX_PCM_FRAME_NUM_PER_TICK;
+                btif_media_cb.stats.media_read_limited_count++;
+                btif_media_cb.stats.media_read_total_limited_frames += delta;
+                if (delta > btif_media_cb.stats.media_read_max_limited_frames)
+                    btif_media_cb.stats.media_read_max_limited_frames = delta;
+                projected_nof = MAX_PCM_FRAME_NUM_PER_TICK;
+            }
+
+            APPL_TRACE_DEBUG("%s frames for available PCM data %u", __func__, projected_nof);
+
+            if (btif_av_is_peer_edr())
+            {
+                if (!btif_media_cb.tx_sbc_frames)
+                {
+                    APPL_TRACE_ERROR("%s tx_sbc_frames not updated, update from here", __func__);
+                    btif_media_cb.tx_sbc_frames = calculate_max_frames_per_packet();
+                }
+
+                nof = btif_media_cb.tx_sbc_frames;
+                if (!nof) {
+                    APPL_TRACE_ERROR("%s Number of frames not updated, set calculated values",
+                                                        __func__);
+                    nof = projected_nof;
+                    noi = 1;
+                } else {
+                    if (nof < projected_nof)
+                    {
+                        noi = projected_nof / nof; // number of iterations would vary
+                        if (noi > MAX_PCM_ITER_NUM_PER_TICK)
+                        {
+                            APPL_TRACE_ERROR("%s ## Audio Congestion (iterations:%d > max (%d))",
+                                 __func__, noi, MAX_PCM_ITER_NUM_PER_TICK);
+                            noi = MAX_PCM_ITER_NUM_PER_TICK;
+                            btif_media_cb.media_feeding_state.pcm.counter
+                                = noi * nof * pcm_bytes_per_frame;
+                        }
+                        projected_nof = nof;
+                    } else {
+                        noi = 1; // number of iterations is 1
+                        APPL_TRACE_DEBUG("%s reducing frames for available PCM data", __func__);
+                        nof = projected_nof;
+                    }
+                }
+            } else {
+                // For BR cases nof will be same as the value retrieved at projected_nof
+                APPL_TRACE_DEBUG("%s headset BR, number of frames %u", __func__, nof);
+                if (projected_nof > MAX_PCM_FRAME_NUM_PER_TICK)
+                {
+                    APPL_TRACE_ERROR("%s ## Audio Congestion (frames: %d > max (%d))",
+                        __func__, projected_nof, MAX_PCM_FRAME_NUM_PER_TICK);
+                    projected_nof = MAX_PCM_FRAME_NUM_PER_TICK;
+                    btif_media_cb.media_feeding_state.pcm.counter =
+                        noi * projected_nof * pcm_bytes_per_frame;
+                }
+                nof = projected_nof;
+            }
+            btif_media_cb.media_feeding_state.pcm.counter -= noi * nof * pcm_bytes_per_frame;
+            APPL_TRACE_DEBUG("%s effective num of frames %u, iterations %u", __func__, nof, noi);
+        }
+        break;
+
+        default:
+            APPL_TRACE_ERROR("%s Unsupported transcoding format 0x%x",
+                    __func__, btif_media_cb.TxTranscoding);
+            nof = 0;
+            noi = 0;
+            break;
+    }
+    *num_of_frames = nof;
+    *num_of_iterations = noi;
+}
+
+/*******************************************************************************
+ **
+ ** Function         btif_media_sink_enque_buf
+ **
+ ** Description      This function is called by the av_co to fill A2DP Sink Queue
+ **
+ **
+ ** Returns          size of the queue
+ *******************************************************************************/
+UINT8 btif_media_sink_enque_buf(BT_HDR *p_pkt)
+{
+    if (btif_media_cb.rx_flush == TRUE) /* Flush enabled, do not enque */
+        return fixed_queue_length(btif_media_cb.RxSbcQ);
+    if (fixed_queue_length(btif_media_cb.RxSbcQ) == MAX_OUTPUT_A2DP_FRAME_QUEUE_SZ)
+    {
+        UINT8 ret = fixed_queue_length(btif_media_cb.RxSbcQ);
+        osi_free(fixed_queue_try_dequeue(btif_media_cb.RxSbcQ));
+        return ret;
+    }
+
+    BTIF_TRACE_VERBOSE("%s +", __func__);
+    /* allocate and Queue this buffer */
+    tBT_SBC_HDR *p_msg =
+        (tBT_SBC_HDR *)osi_malloc(sizeof(tBT_SBC_HDR) + p_pkt->offset +
+                                  p_pkt->len);
+    memcpy((UINT8 *)(p_msg + 1), (UINT8 *)(p_pkt + 1) + p_pkt->offset,
+           p_pkt->len);
+    p_msg->num_frames_to_be_processed = (*((UINT8 *)(p_pkt + 1) + p_pkt->offset))& 0x0f;
+    p_msg->len = p_pkt->len;
+    p_msg->offset = 0;
+    p_msg->layer_specific = p_pkt->layer_specific;
+    BTIF_TRACE_VERBOSE("%s frames to process %d, len %d  ",
+                       __func__, p_msg->num_frames_to_be_processed,p_msg->len);
+    fixed_queue_enqueue(btif_media_cb.RxSbcQ, p_msg);
+    if (fixed_queue_length(btif_media_cb.RxSbcQ) == MAX_A2DP_DELAYED_START_FRAME_COUNT) {
+        BTIF_TRACE_DEBUG(" Initiate Decoding ");
+        btif_media_task_aa_handle_start_decoding();
+    }
+
+    return fixed_queue_length(btif_media_cb.RxSbcQ);
+}
+
+/*******************************************************************************
+ **
+ ** Function         btif_media_aa_readbuf
+ **
+ ** Description      This function is called by the av_co to get the next buffer to send
+ **
+ **
+ ** Returns          void
+ *******************************************************************************/
+BT_HDR *btif_media_aa_readbuf(void)
+{
+    uint64_t now_us = time_now_us();
+    BT_HDR *p_buf = fixed_queue_try_dequeue(btif_media_cb.TxAaQ);
+
+    btif_media_cb.stats.tx_queue_total_readbuf_calls++;
+    btif_media_cb.stats.tx_queue_last_readbuf_us = now_us;
+    if (p_buf != NULL) {
+        // Update the statistics
+        update_scheduling_stats(&btif_media_cb.stats.tx_queue_dequeue_stats,
+                                now_us, BTIF_SINK_MEDIA_TIME_TICK_MS * 1000);
+    }
+
+    return p_buf;
+}
+
+/*******************************************************************************
+ **
+ ** Function         btif_media_aa_read_feeding
+ **
+ ** Description
+ **
+ ** Returns          void
+ **
+ *******************************************************************************/
+
+BOOLEAN btif_media_aa_read_feeding(tUIPC_CH_ID channel_id)
+{
+    UINT16 event;
+    UINT16 blocm_x_subband = btif_media_cb.encoder.s16NumOfSubBands * \
+                             btif_media_cb.encoder.s16NumOfBlocks;
+    UINT32 read_size;
+    UINT16 sbc_sampling = 48000;
+    UINT32 src_samples;
+    UINT16 bytes_needed = blocm_x_subband * btif_media_cb.encoder.s16NumOfChannels * \
+                          btif_media_cb.media_feeding.cfg.pcm.bit_per_sample / 8;
+    static UINT16 up_sampled_buffer[SBC_MAX_NUM_FRAME * SBC_MAX_NUM_OF_BLOCKS
+            * SBC_MAX_NUM_OF_CHANNELS * SBC_MAX_NUM_OF_SUBBANDS * 2];
+    static UINT16 read_buffer[SBC_MAX_NUM_FRAME * SBC_MAX_NUM_OF_BLOCKS
+            * SBC_MAX_NUM_OF_CHANNELS * SBC_MAX_NUM_OF_SUBBANDS];
+    UINT32 src_size_used;
+    UINT32 dst_size_used;
+    BOOLEAN fract_needed;
+    INT32   fract_max;
+    INT32   fract_threshold;
+    UINT32  nb_byte_read;
+
+    /* Get the SBC sampling rate */
+    switch (btif_media_cb.encoder.s16SamplingFreq)
+    {
+    case SBC_sf48000:
+        sbc_sampling = 48000;
+        break;
+    case SBC_sf44100:
+        sbc_sampling = 44100;
+        break;
+    case SBC_sf32000:
+        sbc_sampling = 32000;
+        break;
+    case SBC_sf16000:
+        sbc_sampling = 16000;
+        break;
+    }
+
+    if (sbc_sampling == btif_media_cb.media_feeding.cfg.pcm.sampling_freq) {
+        read_size = bytes_needed - btif_media_cb.media_feeding_state.pcm.aa_feed_residue;
+        nb_byte_read = UIPC_Read(channel_id, &event,
+                  ((UINT8 *)btif_media_cb.encoder.as16PcmBuffer) +
+                  btif_media_cb.media_feeding_state.pcm.aa_feed_residue,
+                  read_size);
+        if (nb_byte_read == read_size) {
+            btif_media_cb.media_feeding_state.pcm.aa_feed_residue = 0;
+            return TRUE;
+        } else {
+            APPL_TRACE_WARNING("### UNDERFLOW :: ONLY READ %d BYTES OUT OF %d ###",
+                nb_byte_read, read_size);
+            btif_media_cb.media_feeding_state.pcm.aa_feed_residue += nb_byte_read;
+            btif_media_cb.stats.media_read_total_underflow_bytes += (read_size - nb_byte_read);
+            btif_media_cb.stats.media_read_total_underflow_count++;
+            btif_media_cb.stats.media_read_last_underflow_us = time_now_us();
+            return FALSE;
+        }
+    }
+
+    /* Some Feeding PCM frequencies require to split the number of sample */
+    /* to read. */
+    /* E.g 128/6=21.3333 => read 22 and 21 and 21 => max = 2; threshold = 0*/
+    fract_needed = FALSE;   /* Default */
+    switch (btif_media_cb.media_feeding.cfg.pcm.sampling_freq)
+    {
+    case 32000:
+    case 8000:
+        fract_needed = TRUE;
+        fract_max = 2;          /* 0, 1 and 2 */
+        fract_threshold = 0;    /* Add one for the first */
+        break;
+    case 16000:
+        fract_needed = TRUE;
+        fract_max = 2;          /* 0, 1 and 2 */
+        fract_threshold = 1;    /* Add one for the first two frames*/
+        break;
+    }
+
+    /* Compute number of sample to read from source */
+    src_samples = blocm_x_subband;
+    src_samples *= btif_media_cb.media_feeding.cfg.pcm.sampling_freq;
+    src_samples /= sbc_sampling;
+
+    /* The previous division may have a remainder not null */
+    if (fract_needed)
+    {
+        if (btif_media_cb.media_feeding_state.pcm.aa_feed_counter <= fract_threshold)
+        {
+            src_samples++; /* for every read before threshold add one sample */
+        }
+
+        /* do nothing if counter >= threshold */
+        btif_media_cb.media_feeding_state.pcm.aa_feed_counter++; /* one more read */
+        if (btif_media_cb.media_feeding_state.pcm.aa_feed_counter > fract_max)
+        {
+            btif_media_cb.media_feeding_state.pcm.aa_feed_counter = 0;
+        }
+    }
+
+    /* Compute number of bytes to read from source */
+    read_size = src_samples;
+    read_size *= btif_media_cb.media_feeding.cfg.pcm.num_channel;
+    read_size *= (btif_media_cb.media_feeding.cfg.pcm.bit_per_sample / 8);
+
+    /* Read Data from UIPC channel */
+    nb_byte_read = UIPC_Read(channel_id, &event, (UINT8 *)read_buffer, read_size);
+
+    //tput_mon(TRUE, nb_byte_read, FALSE);
+
+    if (nb_byte_read < read_size)
+    {
+        APPL_TRACE_WARNING("### UNDERRUN :: ONLY READ %d BYTES OUT OF %d ###",
+                nb_byte_read, read_size);
+        btif_media_cb.stats.media_read_total_underrun_bytes += (read_size - nb_byte_read);
+        btif_media_cb.stats.media_read_total_underrun_count++;
+        btif_media_cb.stats.media_read_last_underrun_us = time_now_us();
+
+        if (nb_byte_read == 0)
+            return FALSE;
+
+        if(btif_media_cb.feeding_mode == BTIF_AV_FEEDING_ASYNCHRONOUS)
+        {
+            /* Fill the unfilled part of the read buffer with silence (0) */
+            memset(((UINT8 *)read_buffer) + nb_byte_read, 0, read_size - nb_byte_read);
+            nb_byte_read = read_size;
+        }
+    }
+
+    /* Initialize PCM up-sampling engine */
+    bta_av_sbc_init_up_sample(btif_media_cb.media_feeding.cfg.pcm.sampling_freq,
+            sbc_sampling, btif_media_cb.media_feeding.cfg.pcm.bit_per_sample,
+            btif_media_cb.media_feeding.cfg.pcm.num_channel);
+
+    /* re-sample read buffer */
+    /* The output PCM buffer will be stereo, 16 bit per sample */
+    dst_size_used = bta_av_sbc_up_sample((UINT8 *)read_buffer,
+            (UINT8 *)up_sampled_buffer + btif_media_cb.media_feeding_state.pcm.aa_feed_residue,
+            nb_byte_read,
+            sizeof(up_sampled_buffer) - btif_media_cb.media_feeding_state.pcm.aa_feed_residue,
+            &src_size_used);
+
+    /* update the residue */
+    btif_media_cb.media_feeding_state.pcm.aa_feed_residue += dst_size_used;
+
+    /* only copy the pcm sample when we have up-sampled enough PCM */
+    if(btif_media_cb.media_feeding_state.pcm.aa_feed_residue >= bytes_needed)
+    {
+        /* Copy the output pcm samples in SBC encoding buffer */
+        memcpy((UINT8 *)btif_media_cb.encoder.as16PcmBuffer,
+                (UINT8 *)up_sampled_buffer,
+                bytes_needed);
+        /* update the residue */
+        btif_media_cb.media_feeding_state.pcm.aa_feed_residue -= bytes_needed;
+
+        if (btif_media_cb.media_feeding_state.pcm.aa_feed_residue != 0)
+        {
+            memcpy((UINT8 *)up_sampled_buffer,
+                   (UINT8 *)up_sampled_buffer + bytes_needed,
+                   btif_media_cb.media_feeding_state.pcm.aa_feed_residue);
+        }
+        return TRUE;
+    }
+
+    return FALSE;
+}
+
+/*******************************************************************************
+ **
+ ** Function         btif_media_aa_prep_sbc_2_send
+ **
+ ** Description
+ **
+ ** Returns          void
+ **
+ *******************************************************************************/
+static void btif_media_aa_prep_sbc_2_send(UINT8 nb_frame,
+                                          uint64_t timestamp_us)
+{
+    uint8_t remain_nb_frame = nb_frame;
+    UINT16 blocm_x_subband = btif_media_cb.encoder.s16NumOfSubBands *
+                             btif_media_cb.encoder.s16NumOfBlocks;
+
+    while (nb_frame) {
+        BT_HDR *p_buf = osi_malloc(BTIF_MEDIA_AA_BUF_SIZE);
+
+        /* Init buffer */
+        p_buf->offset = BTIF_MEDIA_AA_SBC_OFFSET;
+        p_buf->len = 0;
+        p_buf->layer_specific = 0;
+
+        do
+        {
+            /* Write @ of allocated buffer in encoder.pu8Packet */
+            btif_media_cb.encoder.pu8Packet = (UINT8 *) (p_buf + 1) + p_buf->offset + p_buf->len;
+            /* Fill allocated buffer with 0 */
+            memset(btif_media_cb.encoder.as16PcmBuffer, 0, blocm_x_subband
+                    * btif_media_cb.encoder.s16NumOfChannels);
+
+            /* Read PCM data and upsample them if needed */
+            if (btif_media_aa_read_feeding(UIPC_CH_ID_AV_AUDIO))
+            {
+                SBC_Encoder(&(btif_media_cb.encoder));
+
+                /* Update SBC frame length */
+                p_buf->len += btif_media_cb.encoder.u16PacketLength;
+                nb_frame--;
+                p_buf->layer_specific++;
+            }
+            else
+            {
+                APPL_TRACE_WARNING("btif_media_aa_prep_sbc_2_send underflow %d, %d",
+                    nb_frame, btif_media_cb.media_feeding_state.pcm.aa_feed_residue);
+                btif_media_cb.media_feeding_state.pcm.counter += nb_frame *
+                     btif_media_cb.encoder.s16NumOfSubBands *
+                     btif_media_cb.encoder.s16NumOfBlocks *
+                     btif_media_cb.media_feeding.cfg.pcm.num_channel *
+                     btif_media_cb.media_feeding.cfg.pcm.bit_per_sample / 8;
+                /* no more pcm to read */
+                nb_frame = 0;
+
+                /* break read loop if timer was stopped (media task stopped) */
+                if (! alarm_is_scheduled(btif_media_cb.media_alarm))
+                {
+                    osi_free(p_buf);
+                    return;
+                }
+            }
+
+        } while (((p_buf->len + btif_media_cb.encoder.u16PacketLength) < btif_media_cb.TxAaMtuSize)
+                && (p_buf->layer_specific < 0x0F) && nb_frame);
+
+        if(p_buf->len)
+        {
+            /* timestamp of the media packet header represent the TS of the first SBC frame
+               i.e the timestamp before including this frame */
+            *((UINT32 *) (p_buf + 1)) = btif_media_cb.timestamp;
+
+            btif_media_cb.timestamp += p_buf->layer_specific * blocm_x_subband;
+
+            if (btif_media_cb.tx_flush)
+            {
+                APPL_TRACE_DEBUG("### tx suspended, discarded frame ###");
+
+                btif_media_cb.stats.tx_queue_total_flushed_messages +=
+                    fixed_queue_length(btif_media_cb.TxAaQ);
+                btif_media_cb.stats.tx_queue_last_flushed_us =
+                    timestamp_us;
+                btif_media_flush_q(btif_media_cb.TxAaQ);
+
+                osi_free(p_buf);
+                return;
+            }
+
+            /* Enqueue the encoded SBC frame in AA Tx Queue */
+            update_scheduling_stats(&btif_media_cb.stats.tx_queue_enqueue_stats,
+                                    timestamp_us,
+                                    BTIF_SINK_MEDIA_TIME_TICK_MS * 1000);
+            uint8_t done_nb_frame = remain_nb_frame - nb_frame;
+            remain_nb_frame = nb_frame;
+            btif_media_cb.stats.tx_queue_total_frames += done_nb_frame;
+            if (done_nb_frame > btif_media_cb.stats.tx_queue_max_frames_per_packet)
+                btif_media_cb.stats.tx_queue_max_frames_per_packet = done_nb_frame;
+            fixed_queue_enqueue(btif_media_cb.TxAaQ, p_buf);
+        }
+        else
+        {
+            osi_free(p_buf);
+        }
+    }
+}
+
+
+/*******************************************************************************
+ **
+ ** Function         btif_media_aa_prep_2_send
+ **
+ ** Description
+ **
+ ** Returns          void
+ **
+ *******************************************************************************/
+
+static void btif_media_aa_prep_2_send(UINT8 nb_frame, uint64_t timestamp_us)
+{
+    // Check for TX queue overflow
+
+    if (nb_frame > MAX_OUTPUT_A2DP_FRAME_QUEUE_SZ)
+        nb_frame = MAX_OUTPUT_A2DP_FRAME_QUEUE_SZ;
+
+    if (fixed_queue_length(btif_media_cb.TxAaQ) > (MAX_OUTPUT_A2DP_FRAME_QUEUE_SZ - nb_frame))
+    {
+        APPL_TRACE_WARNING("%s() - TX queue buffer count %d/%d", __func__,
+                           fixed_queue_length(btif_media_cb.TxAaQ),
+                           MAX_OUTPUT_A2DP_FRAME_QUEUE_SZ - nb_frame);
+        btif_media_cb.stats.tx_queue_dropouts++;
+        btif_media_cb.stats.tx_queue_last_dropouts_us = timestamp_us;
+
+        while (fixed_queue_length(btif_media_cb.TxAaQ)) {
+            btif_media_cb.stats.tx_queue_total_dropped_messages++;
+            osi_free(fixed_queue_try_dequeue(btif_media_cb.TxAaQ));
+        }
+    }
+
+    // Transcode frame
+
+    switch (btif_media_cb.TxTranscoding)
+    {
+    case BTIF_MEDIA_TRSCD_PCM_2_SBC:
+        btif_media_aa_prep_sbc_2_send(nb_frame, timestamp_us);
+        break;
+
+    default:
+        APPL_TRACE_ERROR("%s unsupported transcoding format 0x%x", __func__, btif_media_cb.TxTranscoding);
+        break;
+    }
+}
+
+/*******************************************************************************
+ **
+ ** Function         btif_media_send_aa_frame
+ **
+ ** Description
+ **
+ ** Returns          void
+ **
+ *******************************************************************************/
+static void btif_media_send_aa_frame(uint64_t timestamp_us)
+{
+    UINT8 nb_frame_2_send = 0;
+    UINT8 nb_iterations = 0;
+
+    btif_get_num_aa_frame_iteration(&nb_iterations, &nb_frame_2_send);
+
+    if (nb_frame_2_send != 0) {
+        for (UINT8 counter = 0; counter < nb_iterations; counter++)
+        {
+            /* format and queue buffer to send */
+            btif_media_aa_prep_2_send(nb_frame_2_send, timestamp_us);
+        }
+    }
+
+    LOG_VERBOSE(LOG_TAG, "%s Sent %d frames per iteration, %d iterations",
+                        __func__, nb_frame_2_send, nb_iterations);
+    bta_av_ci_src_data_ready(BTA_AV_CHNL_AUDIO);
+}
+
+#endif /* BTA_AV_INCLUDED == TRUE */
+
+/*******************************************************************************
+ **
+ ** Function         dump_codec_info
+ **
+ ** Description      Decode and display codec_info (for debug)
+ **
+ ** Returns          void
+ **
+ *******************************************************************************/
+void dump_codec_info(unsigned char *p_codec)
+{
+    tA2D_STATUS a2d_status;
+    tA2D_SBC_CIE sbc_cie;
+
+    a2d_status = A2D_ParsSbcInfo(&sbc_cie, p_codec, FALSE);
+    if (a2d_status != A2D_SUCCESS)
+    {
+        APPL_TRACE_ERROR("ERROR dump_codec_info A2D_ParsSbcInfo fail:%d", a2d_status);
+        return;
+    }
+
+    APPL_TRACE_DEBUG("dump_codec_info");
+
+    if (sbc_cie.samp_freq == A2D_SBC_IE_SAMP_FREQ_16)
+    {    APPL_TRACE_DEBUG("\tsamp_freq:%d (16000)", sbc_cie.samp_freq);}
+    else  if (sbc_cie.samp_freq == A2D_SBC_IE_SAMP_FREQ_32)
+    {    APPL_TRACE_DEBUG("\tsamp_freq:%d (32000)", sbc_cie.samp_freq);}
+    else  if (sbc_cie.samp_freq == A2D_SBC_IE_SAMP_FREQ_44)
+    {    APPL_TRACE_DEBUG("\tsamp_freq:%d (44.100)", sbc_cie.samp_freq);}
+    else  if (sbc_cie.samp_freq == A2D_SBC_IE_SAMP_FREQ_48)
+    {    APPL_TRACE_DEBUG("\tsamp_freq:%d (48000)", sbc_cie.samp_freq);}
+    else
+    {    APPL_TRACE_DEBUG("\tBAD samp_freq:%d", sbc_cie.samp_freq);}
+
+    if (sbc_cie.ch_mode == A2D_SBC_IE_CH_MD_MONO)
+    {    APPL_TRACE_DEBUG("\tch_mode:%d (Mono)", sbc_cie.ch_mode);}
+    else  if (sbc_cie.ch_mode == A2D_SBC_IE_CH_MD_DUAL)
+    {    APPL_TRACE_DEBUG("\tch_mode:%d (Dual)", sbc_cie.ch_mode);}
+    else  if (sbc_cie.ch_mode == A2D_SBC_IE_CH_MD_STEREO)
+    {    APPL_TRACE_DEBUG("\tch_mode:%d (Stereo)", sbc_cie.ch_mode);}
+    else  if (sbc_cie.ch_mode == A2D_SBC_IE_CH_MD_JOINT)
+    {    APPL_TRACE_DEBUG("\tch_mode:%d (Joint)", sbc_cie.ch_mode);}
+    else
+    {    APPL_TRACE_DEBUG("\tBAD ch_mode:%d", sbc_cie.ch_mode);}
+
+    if (sbc_cie.block_len == A2D_SBC_IE_BLOCKS_4)
+    {    APPL_TRACE_DEBUG("\tblock_len:%d (4)", sbc_cie.block_len);}
+    else  if (sbc_cie.block_len == A2D_SBC_IE_BLOCKS_8)
+    {    APPL_TRACE_DEBUG("\tblock_len:%d (8)", sbc_cie.block_len);}
+    else  if (sbc_cie.block_len == A2D_SBC_IE_BLOCKS_12)
+    {    APPL_TRACE_DEBUG("\tblock_len:%d (12)", sbc_cie.block_len);}
+    else  if (sbc_cie.block_len == A2D_SBC_IE_BLOCKS_16)
+    {    APPL_TRACE_DEBUG("\tblock_len:%d (16)", sbc_cie.block_len);}
+    else
+    {    APPL_TRACE_DEBUG("\tBAD block_len:%d", sbc_cie.block_len);}
+
+    if (sbc_cie.num_subbands == A2D_SBC_IE_SUBBAND_4)
+    {    APPL_TRACE_DEBUG("\tnum_subbands:%d (4)", sbc_cie.num_subbands);}
+    else  if (sbc_cie.num_subbands == A2D_SBC_IE_SUBBAND_8)
+    {    APPL_TRACE_DEBUG("\tnum_subbands:%d (8)", sbc_cie.num_subbands);}
+    else
+    {    APPL_TRACE_DEBUG("\tBAD num_subbands:%d", sbc_cie.num_subbands);}
+
+    if (sbc_cie.alloc_mthd == A2D_SBC_IE_ALLOC_MD_S)
+    {    APPL_TRACE_DEBUG("\talloc_mthd:%d (SNR)", sbc_cie.alloc_mthd);}
+    else  if (sbc_cie.alloc_mthd == A2D_SBC_IE_ALLOC_MD_L)
+    {    APPL_TRACE_DEBUG("\talloc_mthd:%d (Loundess)", sbc_cie.alloc_mthd);}
+    else
+    {    APPL_TRACE_DEBUG("\tBAD alloc_mthd:%d", sbc_cie.alloc_mthd);}
+
+    APPL_TRACE_DEBUG("\tBit pool Min:%d Max:%d", sbc_cie.min_bitpool, sbc_cie.max_bitpool);
+
+}
+
+void btif_debug_a2dp_dump(int fd)
+{
+    uint64_t now_us = time_now_us();
+    btif_media_stats_t *stats = &btif_media_cb.stats;
+    scheduling_stats_t *enqueue_stats = &stats->tx_queue_enqueue_stats;
+    scheduling_stats_t *dequeue_stats = &stats->tx_queue_dequeue_stats;
+    size_t ave_size;
+    uint64_t ave_time_us;
+
+    dprintf(fd, "\nA2DP State:\n");
+    dprintf(fd, "  TxQueue:\n");
+
+    dprintf(fd, "  Counts (enqueue/dequeue/readbuf)                        : %zu / %zu / %zu\n",
+            enqueue_stats->total_updates,
+            dequeue_stats->total_updates,
+            stats->tx_queue_total_readbuf_calls);
+
+    dprintf(fd, "  Last update time ago in ms (enqueue/dequeue/readbuf)    : %llu / %llu / %llu\n",
+            (enqueue_stats->last_update_us > 0) ?
+                (unsigned long long)(now_us - enqueue_stats->last_update_us) / 1000 : 0,
+            (dequeue_stats->last_update_us > 0) ?
+                (unsigned long long)(now_us - dequeue_stats->last_update_us) / 1000 : 0,
+            (stats->tx_queue_last_readbuf_us > 0)?
+                (unsigned long long)(now_us - stats->tx_queue_last_readbuf_us) / 1000 : 0);
+
+    ave_size = 0;
+    if (stats->media_read_expected_count != 0)
+        ave_size = stats->media_read_total_expected_frames / stats->media_read_expected_count;
+    dprintf(fd, "  Frames expected (total/max/ave)                         : %zu / %zu / %zu\n",
+            stats->media_read_total_expected_frames,
+            stats->media_read_max_expected_frames,
+            ave_size);
+
+    ave_size = 0;
+    if (stats->media_read_limited_count != 0)
+        ave_size = stats->media_read_total_limited_frames / stats->media_read_limited_count;
+    dprintf(fd, "  Frames limited (total/max/ave)                          : %zu / %zu / %zu\n",
+            stats->media_read_total_limited_frames,
+            stats->media_read_max_limited_frames,
+            ave_size);
+
+    dprintf(fd, "  Counts (expected/limited)                               : %zu / %zu\n",
+            stats->media_read_expected_count,
+            stats->media_read_limited_count);
+
+    ave_size = 0;
+    if (enqueue_stats->total_updates != 0)
+        ave_size = stats->tx_queue_total_frames / enqueue_stats->total_updates;
+    dprintf(fd, "  Frames per packet (total/max/ave)                       : %zu / %zu / %zu\n",
+            stats->tx_queue_total_frames,
+            stats->tx_queue_max_frames_per_packet,
+            ave_size);
+
+    dprintf(fd, "  Counts (flushed/dropped/dropouts)                       : %zu / %zu / %zu\n",
+            stats->tx_queue_total_flushed_messages,
+            stats->tx_queue_total_dropped_messages,
+            stats->tx_queue_dropouts);
+
+    dprintf(fd, "  Last update time ago in ms (flushed/dropped)            : %llu / %llu\n",
+            (stats->tx_queue_last_flushed_us > 0) ?
+                (unsigned long long)(now_us - stats->tx_queue_last_flushed_us) / 1000 : 0,
+            (stats->tx_queue_last_dropouts_us > 0)?
+                (unsigned long long)(now_us - stats->tx_queue_last_dropouts_us)/ 1000 : 0);
+
+    dprintf(fd, "  Counts (underflow/underrun)                             : %zu / %zu\n",
+            stats->media_read_total_underflow_count,
+            stats->media_read_total_underrun_count);
+
+    dprintf(fd, "  Bytes (underflow/underrun)                              : %zu / %zu\n",
+            stats->media_read_total_underflow_bytes,
+            stats->media_read_total_underrun_bytes);
+
+    dprintf(fd, "  Last update time ago in ms (underflow/underrun)         : %llu / %llu\n",
+            (stats->media_read_last_underflow_us > 0) ?
+                (unsigned long long)(now_us - stats->media_read_last_underflow_us) / 1000 : 0,
+            (stats->media_read_last_underrun_us > 0)?
+                (unsigned long long)(now_us - stats->media_read_last_underrun_us) / 1000 : 0);
+
+    //
+    // TxQueue enqueue stats
+    //
+    dprintf(fd, "  Enqueue deviation counts (overdue/premature)            : %zu / %zu\n",
+            enqueue_stats->overdue_scheduling_count,
+            enqueue_stats->premature_scheduling_count);
+
+    ave_time_us = 0;
+    if (enqueue_stats->overdue_scheduling_count != 0) {
+        ave_time_us = enqueue_stats->total_overdue_scheduling_delta_us /
+            enqueue_stats->overdue_scheduling_count;
+    }
+    dprintf(fd, "  Enqueue overdue scheduling time in ms (total/max/ave)   : %llu / %llu / %llu\n",
+            (unsigned long long)enqueue_stats->total_overdue_scheduling_delta_us / 1000,
+            (unsigned long long)enqueue_stats->max_overdue_scheduling_delta_us / 1000,
+            (unsigned long long)ave_time_us / 1000);
+
+    ave_time_us = 0;
+    if (enqueue_stats->premature_scheduling_count != 0) {
+        ave_time_us = enqueue_stats->total_premature_scheduling_delta_us /
+            enqueue_stats->premature_scheduling_count;
+    }
+    dprintf(fd, "  Enqueue premature scheduling time in ms (total/max/ave) : %llu / %llu / %llu\n",
+            (unsigned long long)enqueue_stats->total_premature_scheduling_delta_us / 1000,
+            (unsigned long long)enqueue_stats->max_premature_scheduling_delta_us / 1000,
+            (unsigned long long)ave_time_us / 1000);
+
+
+    //
+    // TxQueue dequeue stats
+    //
+    dprintf(fd, "  Dequeue deviation counts (overdue/premature)            : %zu / %zu\n",
+            dequeue_stats->overdue_scheduling_count,
+            dequeue_stats->premature_scheduling_count);
+
+    ave_time_us = 0;
+    if (dequeue_stats->overdue_scheduling_count != 0) {
+        ave_time_us = dequeue_stats->total_overdue_scheduling_delta_us /
+            dequeue_stats->overdue_scheduling_count;
+    }
+    dprintf(fd, "  Dequeue overdue scheduling time in ms (total/max/ave)   : %llu / %llu / %llu\n",
+            (unsigned long long)dequeue_stats->total_overdue_scheduling_delta_us / 1000,
+            (unsigned long long)dequeue_stats->max_overdue_scheduling_delta_us / 1000,
+            (unsigned long long)ave_time_us / 1000);
+
+    ave_time_us = 0;
+    if (dequeue_stats->premature_scheduling_count != 0) {
+        ave_time_us = dequeue_stats->total_premature_scheduling_delta_us /
+            dequeue_stats->premature_scheduling_count;
+    }
+    dprintf(fd, "  Dequeue premature scheduling time in ms (total/max/ave) : %llu / %llu / %llu\n",
+            (unsigned long long)dequeue_stats->total_premature_scheduling_delta_us / 1000,
+            (unsigned long long)dequeue_stats->max_premature_scheduling_delta_us / 1000,
+            (unsigned long long)ave_time_us / 1000);
+
+}
+
+void btif_update_a2dp_metrics(void)
+{
+    uint64_t now_us = time_now_us();
+    btif_media_stats_t *stats = &btif_media_cb.stats;
+    scheduling_stats_t *dequeue_stats = &stats->tx_queue_dequeue_stats;
+    int32_t media_timer_min_ms = 0;
+    int32_t media_timer_max_ms = 0;
+    int32_t media_timer_avg_ms = 0;
+    int32_t buffer_overruns_max_count = 0;
+    int32_t buffer_overruns_total = 0;
+    float buffer_underruns_average = 0.0;
+    int32_t buffer_underruns_count = 0;
+
+    int64_t session_duration_sec =
+        (now_us - stats->session_start_us) / (1000 * 1000);
+
+    /* NOTE: Disconnect reason is unused */
+    const char *disconnect_reason = NULL;
+    uint32_t device_class = BTM_COD_MAJOR_AUDIO;
+
+    if (dequeue_stats->total_updates > 1) {
+        media_timer_min_ms = BTIF_SINK_MEDIA_TIME_TICK_MS -
+            (dequeue_stats->max_premature_scheduling_delta_us / 1000);
+        media_timer_max_ms = BTIF_SINK_MEDIA_TIME_TICK_MS +
+            (dequeue_stats->max_overdue_scheduling_delta_us / 1000);
+
+        uint64_t total_scheduling_count =
+            dequeue_stats->overdue_scheduling_count +
+            dequeue_stats->premature_scheduling_count +
+            dequeue_stats->exact_scheduling_count;
+        if (total_scheduling_count > 0) {
+            media_timer_avg_ms = dequeue_stats->total_scheduling_time_us /
+                (1000 * total_scheduling_count);
+        }
+
+        buffer_overruns_max_count = stats->media_read_max_expected_frames;
+        buffer_overruns_total = stats->tx_queue_total_dropped_messages;
+        buffer_underruns_count = stats->media_read_total_underflow_count +
+            stats->media_read_total_underrun_count;
+        if (buffer_underruns_count > 0) {
+            buffer_underruns_average =
+                (stats->media_read_total_underflow_bytes + stats->media_read_total_underrun_bytes) / buffer_underruns_count;
+        }
+    }
+
+    metrics_a2dp_session(session_duration_sec, disconnect_reason, device_class,
+                         media_timer_min_ms, media_timer_max_ms,
+                         media_timer_avg_ms, buffer_overruns_max_count,
+                         buffer_overruns_total, buffer_underruns_average,
+                         buffer_underruns_count);
+}
diff --git a/rtkbt/code/bt/btif/src/btif_pan.c b/rtkbt/code/bt/btif/src/btif_pan.c
new file mode 100755
index 0000000..0788ae7
--- /dev/null
+++ b/rtkbt/code/bt/btif/src/btif_pan.c
@@ -0,0 +1,839 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/************************************************************************************
+ *
+ *  Filename:      btif_pan.c
+ *
+ *  Description:   PAN Profile Bluetooth Interface
+ *
+ *
+ ***********************************************************************************/
+
+#define LOG_TAG "bt_btif_pan"
+
+#include <assert.h>
+#include <ctype.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <linux/if_ether.h>
+#include <linux/if_tun.h>
+#include <linux/sockios.h>
+#include <net/if.h>
+#include <netdb.h>
+#include <netinet/in.h>
+#include <signal.h>
+#include <stdio.h>
+#include <string.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <sys/poll.h>
+#include <sys/prctl.h>
+#include <sys/select.h>
+#include <sys/socket.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+#include <hardware/bluetooth.h>
+#include <hardware/bt_pan.h>
+
+#include "bta_api.h"
+#include "bta_pan_api.h"
+#include "btcore/include/bdaddr.h"
+#include "btif_common.h"
+#include "btif_pan_internal.h"
+#include "btif_sock_thread.h"
+#include "btif_sock_util.h"
+#include "btif_util.h"
+#include "btm_api.h"
+#include "device/include/controller.h"
+#include "bt_common.h"
+#include "osi/include/log.h"
+#include "osi/include/osi.h"
+
+#define FORWARD_IGNORE        1
+#define FORWARD_SUCCESS       0
+#define FORWARD_FAILURE     (-1)
+#define FORWARD_CONGEST     (-2)
+//#define PANU_DISABLED TRUE
+
+#if (PAN_NAP_DISABLED == TRUE) && (PANU_DISABLED == TRUE)
+#define BTPAN_LOCAL_ROLE BTPAN_ROLE_NONE
+#elif PAN_NAP_DISABLED == TRUE
+#define BTPAN_LOCAL_ROLE BTPAN_ROLE_PANU
+#elif PANU_DISABLED == TRUE
+#define BTPAN_LOCAL_ROLE BTPAN_ROLE_PANNAP
+#else
+#define BTPAN_LOCAL_ROLE (BTPAN_ROLE_PANU | BTPAN_ROLE_PANNAP)
+#endif
+
+#define asrt(s) if (!(s)) BTIF_TRACE_ERROR("btif_pan: ## %s assert %s failed at line:%d ##",__FUNCTION__, #s, __LINE__)
+
+#define MIN(x, y) (((x) < (y)) ? (x) : (y))
+
+btpan_cb_t btpan_cb;
+
+static bool jni_initialized;
+static bool stack_initialized;
+
+static bt_status_t btpan_jni_init(const btpan_callbacks_t* callbacks);
+static void btpan_jni_cleanup();
+static bt_status_t btpan_connect(const bt_bdaddr_t *bd_addr, int local_role, int remote_role);
+static bt_status_t btpan_disconnect(const bt_bdaddr_t *bd_addr);
+static bt_status_t btpan_enable(int local_role);
+static int btpan_get_local_role(void);
+
+static void btpan_tap_fd_signaled(int fd, int type, int flags, uint32_t user_id);
+static void btpan_cleanup_conn(btpan_conn_t* conn);
+static void bta_pan_callback(tBTA_PAN_EVT event, tBTA_PAN *p_data);
+static void btu_exec_tap_fd_read(void *p_param);
+#ifdef BLUETOOTH_RTK
+static btpan_interface_t pan_if = {
+    .size = sizeof(pan_if),
+    .init = btpan_jni_init,
+    .enable = btpan_enable,
+    .get_local_role = btpan_get_local_role,
+    .connect = btpan_connect,
+    .disconnect = btpan_disconnect,
+    .cleanup = btpan_jni_cleanup
+};
+#else
+static btpan_interface_t pan_if = {
+    sizeof(pan_if),
+    btpan_jni_init,
+    btpan_enable,
+    btpan_get_local_role,
+    btpan_connect,
+    btpan_disconnect,
+    btpan_jni_cleanup
+};
+#endif
+btpan_interface_t *btif_pan_get_interface()
+{
+    return &pan_if;
+}
+
+/*******************************************************************************
+ **
+ ** Function        btif_pan_init
+ **
+ ** Description     initializes the pan interface
+ **
+ ** Returns         bt_status_t
+ **
+ *******************************************************************************/
+void btif_pan_init()
+{
+    BTIF_TRACE_DEBUG("jni_initialized = %d, btpan_cb.enabled:%d", jni_initialized, btpan_cb.enabled);
+    stack_initialized = true;
+
+    if (jni_initialized && !btpan_cb.enabled)
+    {
+        BTIF_TRACE_DEBUG("Enabling PAN....");
+        memset(&btpan_cb, 0, sizeof(btpan_cb));
+        btpan_cb.tap_fd = INVALID_FD;
+        btpan_cb.flow = 1;
+        for (int i = 0; i < MAX_PAN_CONNS; i++)
+            btpan_cleanup_conn(&btpan_cb.conns[i]);
+        BTA_PanEnable(bta_pan_callback);
+        btpan_cb.enabled = 1;
+        btpan_enable(BTPAN_LOCAL_ROLE);
+    }
+}
+
+static void pan_disable()
+{
+    if (btpan_cb.enabled)
+    {
+        btpan_cb.enabled = 0;
+        BTA_PanDisable();
+        if (btpan_cb.tap_fd != INVALID_FD)
+        {
+            btpan_tap_close(btpan_cb.tap_fd);
+            btpan_cb.tap_fd = INVALID_FD;
+        }
+    }
+}
+
+void btif_pan_cleanup()
+{
+    if (!stack_initialized)
+        return;
+
+    // Bluetooth is shuting down, invalidate all BTA PAN handles
+    for (int i = 0; i < MAX_PAN_CONNS; i++)
+        btpan_cleanup_conn(&btpan_cb.conns[i]);
+
+    pan_disable();
+    stack_initialized = false;
+}
+
+static btpan_callbacks_t callback;
+static bt_status_t btpan_jni_init(const btpan_callbacks_t* callbacks)
+{
+    BTIF_TRACE_DEBUG("stack_initialized = %d, btpan_cb.enabled:%d", stack_initialized, btpan_cb.enabled);
+    callback = *callbacks;
+    jni_initialized = TRUE;
+    if (stack_initialized && !btpan_cb.enabled)
+        btif_pan_init();
+    return BT_STATUS_SUCCESS;
+}
+
+static void btpan_jni_cleanup()
+{
+    pan_disable();
+    jni_initialized = false;
+}
+
+static inline int bta_role_to_btpan(int bta_pan_role)
+{
+    int btpan_role = 0;
+    BTIF_TRACE_DEBUG("bta_pan_role:0x%x", bta_pan_role);
+    if (bta_pan_role & PAN_ROLE_NAP_SERVER)
+        btpan_role |= BTPAN_ROLE_PANNAP;
+    if (bta_pan_role & PAN_ROLE_CLIENT)
+        btpan_role |= BTPAN_ROLE_PANU;
+    return btpan_role;
+}
+
+static inline int btpan_role_to_bta(int btpan_role)
+{
+    int bta_pan_role = PAN_ROLE_INACTIVE;
+    BTIF_TRACE_DEBUG("btpan_role:0x%x", btpan_role);
+    if (btpan_role & BTPAN_ROLE_PANNAP)
+        bta_pan_role |= PAN_ROLE_NAP_SERVER;
+    if (btpan_role & BTPAN_ROLE_PANU)
+        bta_pan_role |= PAN_ROLE_CLIENT;
+    return bta_pan_role;
+}
+
+static volatile int btpan_dev_local_role;
+#if BTA_PAN_INCLUDED == TRUE
+static tBTA_PAN_ROLE_INFO bta_panu_info = {PANU_SERVICE_NAME, 0, PAN_SECURITY};
+static tBTA_PAN_ROLE_INFO bta_pan_nap_info = {PAN_NAP_SERVICE_NAME, 1, PAN_SECURITY};
+#endif
+
+static bt_status_t btpan_enable(int local_role)
+{
+#if BTA_PAN_INCLUDED == TRUE
+    BTIF_TRACE_DEBUG("%s - local_role: %d", __func__, local_role);
+    int bta_pan_role = btpan_role_to_bta(local_role);
+    BTA_PanSetRole(bta_pan_role, &bta_panu_info, NULL, &bta_pan_nap_info);
+    btpan_dev_local_role = local_role;
+    return BT_STATUS_SUCCESS;
+#else
+    return BT_STATUS_FAIL;
+#endif
+}
+
+static int btpan_get_local_role()
+{
+    BTIF_TRACE_DEBUG("btpan_dev_local_role:%d", btpan_dev_local_role);
+    return btpan_dev_local_role;
+}
+
+static bt_status_t btpan_connect(const bt_bdaddr_t *bd_addr, int local_role, int remote_role)
+{
+    BTIF_TRACE_DEBUG("local_role:%d, remote_role:%d", local_role, remote_role);
+    int bta_local_role = btpan_role_to_bta(local_role);
+    int bta_remote_role = btpan_role_to_bta(remote_role);
+    btpan_new_conn(-1, bd_addr->address, bta_local_role, bta_remote_role);
+    BTA_PanOpen((UINT8*)bd_addr->address, bta_local_role, bta_remote_role);
+    return BT_STATUS_SUCCESS;
+}
+
+static void btif_in_pan_generic_evt(UINT16 event, char *p_param)
+{
+    BTIF_TRACE_EVENT("%s: event=%d", __FUNCTION__, event);
+    switch (event) {
+        case BTIF_PAN_CB_DISCONNECTING:
+        {
+            bt_bdaddr_t *bd_addr = (bt_bdaddr_t*)p_param;
+            btpan_conn_t* conn = btpan_find_conn_addr(bd_addr->address);
+            int btpan_conn_local_role;
+            int btpan_remote_role;
+            asrt(conn != NULL);
+            if (conn) {
+                btpan_conn_local_role = bta_role_to_btpan(conn->local_role);
+                btpan_remote_role = bta_role_to_btpan(conn->remote_role);
+                callback.connection_state_cb(BTPAN_STATE_DISCONNECTING, BT_STATUS_SUCCESS,
+                        (const bt_bdaddr_t*)conn->peer, btpan_conn_local_role, btpan_remote_role);
+            }
+        } break;
+        default:
+        {
+            BTIF_TRACE_WARNING("%s : Unknown event 0x%x", __FUNCTION__, event);
+        }
+        break;
+    }
+}
+
+static bt_status_t btpan_disconnect(const bt_bdaddr_t *bd_addr)
+{
+    btpan_conn_t* conn = btpan_find_conn_addr(bd_addr->address);
+    if (conn && conn->handle >= 0)
+    {
+        /* Inform the application that the disconnect has been initiated successfully */
+        btif_transfer_context(btif_in_pan_generic_evt, BTIF_PAN_CB_DISCONNECTING,
+                              (char *)bd_addr, sizeof(bt_bdaddr_t), NULL);
+        BTA_PanClose(conn->handle);
+        return BT_STATUS_SUCCESS;
+    }
+    return BT_STATUS_FAIL;
+}
+
+static int pan_pth = -1;
+void create_tap_read_thread(int tap_fd)
+{
+    if (pan_pth < 0)
+        pan_pth = btsock_thread_create(btpan_tap_fd_signaled, NULL);
+    if (pan_pth >= 0)
+        btsock_thread_add_fd(pan_pth, tap_fd, 0, SOCK_THREAD_FD_RD, 0);
+}
+
+void destroy_tap_read_thread(void)
+{
+    if (pan_pth >= 0)
+    {
+        btsock_thread_exit(pan_pth);
+        pan_pth = -1;
+    }
+}
+
+static int tap_if_up(const char *devname, const bt_bdaddr_t *addr)
+{
+    struct ifreq ifr;
+    int sk, err;
+
+    sk = socket(AF_INET, SOCK_DGRAM, 0);
+    if (sk < 0)
+        return -1;
+
+    //set mac addr
+    memset(&ifr, 0, sizeof(ifr));
+    strncpy(ifr.ifr_name, devname, IFNAMSIZ - 1);
+    err = ioctl(sk, SIOCGIFHWADDR, &ifr);
+    if (err < 0)
+    {
+        BTIF_TRACE_ERROR("Could not get network hardware for interface:%s, errno:%s", devname, strerror(errno));
+        close(sk);
+        return -1;
+    }
+
+    strncpy(ifr.ifr_name, devname, IFNAMSIZ - 1);
+    memcpy(ifr.ifr_hwaddr.sa_data, addr->address, 6);
+
+    /* The IEEE has specified that the most significant bit of the most significant byte is used to
+     * determine a multicast address. If its a 1, that means multicast, 0 means unicast.
+     * Kernel returns an error if we try to set a multicast address for the tun-tap ethernet interface.
+     * Mask this bit to avoid any issue with auto generated address.
+     */
+    if (ifr.ifr_hwaddr.sa_data[0] & 0x01) {
+        BTIF_TRACE_WARNING("Not a unicast MAC address, force multicast bit flipping");
+        ifr.ifr_hwaddr.sa_data[0] &= ~0x01;
+    }
+
+    err = ioctl(sk, SIOCSIFHWADDR, (caddr_t)&ifr);
+
+    if (err < 0) {
+        BTIF_TRACE_ERROR("Could not set bt address for interface:%s, errno:%s", devname, strerror(errno));
+        close(sk);
+        return -1;
+    }
+
+    //bring it up
+    memset(&ifr, 0, sizeof(ifr));
+    strncpy(ifr.ifr_name, devname, IF_NAMESIZE - 1);
+
+    ifr.ifr_flags |= IFF_UP;
+    ifr.ifr_flags |= IFF_MULTICAST;
+
+    err = ioctl(sk, SIOCSIFFLAGS, (caddr_t) &ifr);
+
+
+    if (err < 0) {
+        BTIF_TRACE_ERROR("Could not bring up network interface:%s, errno:%d", devname, errno);
+        close(sk);
+        return -1;
+    }
+    close(sk);
+    BTIF_TRACE_DEBUG("network interface: %s is up", devname);
+    return 0;
+}
+
+static int tap_if_down(const char *devname)
+{
+    struct ifreq ifr;
+    int sk;
+
+    sk = socket(AF_INET, SOCK_DGRAM, 0);
+    if (sk < 0)
+        return -1;
+
+    memset(&ifr, 0, sizeof(ifr));
+    strncpy(ifr.ifr_name, devname, IF_NAMESIZE - 1);
+
+    ifr.ifr_flags &= ~IFF_UP;
+
+    ioctl(sk, SIOCSIFFLAGS, (caddr_t) &ifr);
+
+    close(sk);
+
+    return 0;
+}
+
+void btpan_set_flow_control(BOOLEAN enable) {
+    if (btpan_cb.tap_fd == -1)
+        return;
+
+    btpan_cb.flow = enable;
+    if (enable) {
+        btsock_thread_add_fd(pan_pth, btpan_cb.tap_fd, 0, SOCK_THREAD_FD_RD, 0);
+        bta_dmexecutecallback(btu_exec_tap_fd_read, INT_TO_PTR(btpan_cb.tap_fd));
+    }
+}
+
+int btpan_tap_open()
+{
+    struct ifreq ifr;
+    int fd, err;
+    const char *clonedev = "/dev/tun";
+
+    /* open the clone device */
+
+    if ((fd = open(clonedev, O_RDWR)) < 0)
+    {
+        BTIF_TRACE_DEBUG("could not open %s, err:%d", clonedev, errno);
+        return fd;
+    }
+
+    memset(&ifr, 0, sizeof(ifr));
+    ifr.ifr_flags = IFF_TAP | IFF_NO_PI;
+
+    strncpy(ifr.ifr_name, TAP_IF_NAME, IFNAMSIZ);
+
+    /* try to create the device */
+    if ((err = ioctl(fd, TUNSETIFF, (void *) &ifr)) < 0)
+    {
+        BTIF_TRACE_DEBUG("ioctl error:%d, errno:%s", err, strerror(errno));
+        close(fd);
+        return err;
+    }
+    if (tap_if_up(TAP_IF_NAME, controller_get_interface()->get_address()) == 0)
+    {
+        int flags = fcntl(fd, F_GETFL, 0);
+        fcntl(fd, F_SETFL, flags | O_NONBLOCK);
+        return fd;
+    }
+    BTIF_TRACE_ERROR("can not bring up tap interface:%s", TAP_IF_NAME);
+    close(fd);
+    return INVALID_FD;
+}
+
+int btpan_tap_send(int tap_fd, const BD_ADDR src, const BD_ADDR dst, UINT16 proto, const char* buf,
+                    UINT16 len, BOOLEAN ext, BOOLEAN forward)
+{
+    UNUSED(ext);
+    UNUSED(forward);
+    if (tap_fd != INVALID_FD)
+    {
+        tETH_HDR eth_hdr;
+        memcpy(&eth_hdr.h_dest, dst, ETH_ADDR_LEN);
+        memcpy(&eth_hdr.h_src, src, ETH_ADDR_LEN);
+        eth_hdr.h_proto = htons(proto);
+        char packet[TAP_MAX_PKT_WRITE_LEN + sizeof(tETH_HDR)];
+        memcpy(packet, &eth_hdr, sizeof(tETH_HDR));
+        if (len > TAP_MAX_PKT_WRITE_LEN)
+        {
+            LOG_ERROR(LOG_TAG, "btpan_tap_send eth packet size:%d is exceeded limit!", len);
+            return -1;
+        }
+        memcpy(packet + sizeof(tETH_HDR), buf, len);
+
+        /* Send data to network interface */
+        ssize_t ret;
+        OSI_NO_INTR(ret = write(tap_fd, packet, len + sizeof(tETH_HDR)));
+        BTIF_TRACE_DEBUG("ret:%d", ret);
+        return (int)ret;
+    }
+    return -1;
+
+}
+
+int btpan_tap_close(int fd)
+{
+    if (tap_if_down(TAP_IF_NAME) == 0)
+        close(fd);
+    if (pan_pth >= 0)
+        btsock_thread_wakeup(pan_pth);
+    return 0;
+}
+
+btpan_conn_t * btpan_find_conn_handle(UINT16 handle)
+{
+    for (int i = 0; i < MAX_PAN_CONNS; i++)
+    {
+        if (btpan_cb.conns[i].handle == handle)
+            return &btpan_cb.conns[i];
+    }
+    return NULL;
+}
+
+btpan_conn_t* btpan_find_conn_addr(const BD_ADDR addr)
+{
+    for (int i = 0; i < MAX_PAN_CONNS; i++)
+    {
+        if (memcmp(btpan_cb.conns[i].peer, addr, sizeof(BD_ADDR)) == 0)
+            return &btpan_cb.conns[i];
+    }
+    return NULL;
+}
+
+static void btpan_open_conn(btpan_conn_t* conn, tBTA_PAN *p_data)
+{
+    BTIF_TRACE_API("btpan_open_conn: local_role:%d, peer_role: %d,  handle:%d, conn: %p",
+            p_data->open.local_role, p_data->open.peer_role, p_data->open.handle, conn);
+
+    if (conn == NULL)
+        conn = btpan_new_conn(p_data->open.handle, p_data->open.bd_addr, p_data->open.local_role,
+                p_data->open.peer_role);
+    if (conn)
+    {
+        BTIF_TRACE_DEBUG("btpan_open_conn:tap_fd:%d, open_count:%d, "
+                "conn->handle:%d should = handle:%d, local_role:%d, remote_role:%d",
+                btpan_cb.tap_fd, btpan_cb.open_count, conn->handle, p_data->open.handle,
+                conn->local_role, conn->remote_role);
+
+        btpan_cb.open_count++;
+        conn->handle = p_data->open.handle;
+        if (btpan_cb.tap_fd < 0)
+        {
+            btpan_cb.tap_fd = btpan_tap_open();
+            if(btpan_cb.tap_fd >= 0)
+                create_tap_read_thread(btpan_cb.tap_fd);
+        }
+
+        if (btpan_cb.tap_fd >= 0)
+        {
+            btpan_cb.flow = 1;
+            conn->state = PAN_STATE_OPEN;
+        }
+    }
+}
+
+static void btpan_close_conn(btpan_conn_t* conn)
+{
+    BTIF_TRACE_API("btpan_close_conn: %p",conn);
+
+    if (conn && conn->state == PAN_STATE_OPEN)
+    {
+        BTIF_TRACE_DEBUG("btpan_close_conn: PAN_STATE_OPEN");
+
+        conn->state = PAN_STATE_CLOSE;
+        btpan_cb.open_count--;
+
+        if (btpan_cb.open_count == 0)
+        {
+            destroy_tap_read_thread();
+            if (btpan_cb.tap_fd != INVALID_FD)
+            {
+                btpan_tap_close(btpan_cb.tap_fd);
+                btpan_cb.tap_fd = INVALID_FD;
+            }
+        }
+    }
+}
+
+
+static void btpan_cleanup_conn(btpan_conn_t* conn)
+{
+    if (conn)
+    {
+        conn->handle = -1;
+        conn->state = -1;
+        memset(&conn->peer, 0, sizeof(conn->peer));
+        memset(&conn->eth_addr, 0, sizeof(conn->eth_addr));
+        conn->local_role = conn->remote_role = 0;
+    }
+}
+
+btpan_conn_t* btpan_new_conn(int handle, const BD_ADDR addr, int local_role, int remote_role)
+{
+    for (int i = 0; i < MAX_PAN_CONNS; i++)
+    {
+        BTIF_TRACE_DEBUG("conns[%d]:%d", i, btpan_cb.conns[i].handle);
+        if (btpan_cb.conns[i].handle == -1)
+        {
+            BTIF_TRACE_DEBUG("handle:%d, local_role:%d, remote_role:%d", handle, local_role, remote_role);
+
+            btpan_cb.conns[i].handle = handle;
+            bdcpy(btpan_cb.conns[i].peer, addr);
+            btpan_cb.conns[i].local_role = local_role;
+            btpan_cb.conns[i].remote_role = remote_role;
+            return &btpan_cb.conns[i];
+        }
+    }
+    BTIF_TRACE_DEBUG("MAX_PAN_CONNS:%d exceeded, return NULL as failed", MAX_PAN_CONNS);
+    return NULL;
+}
+
+void btpan_close_handle(btpan_conn_t *p)
+{
+    BTIF_TRACE_DEBUG("btpan_close_handle : close handle %d", p->handle);
+    p->handle = -1;
+    p->local_role = -1;
+    p->remote_role = -1;
+    memset(&p->peer, 0, 6);
+}
+
+static inline bool should_forward(tETH_HDR* hdr)
+{
+    uint16_t proto = ntohs(hdr->h_proto);
+    if (proto == ETH_P_IP || proto == ETH_P_ARP || proto == ETH_P_IPV6)
+        return true;
+    BTIF_TRACE_DEBUG("unknown proto:%x", proto);
+    return false;
+}
+
+static int forward_bnep(tETH_HDR* eth_hdr, BT_HDR *hdr) {
+    int broadcast = eth_hdr->h_dest[0] & 1;
+
+    // Find the right connection to send this frame over.
+    for (int i = 0; i < MAX_PAN_CONNS; i++)
+    {
+        UINT16 handle = btpan_cb.conns[i].handle;
+        if (handle != (UINT16)-1 &&
+                (broadcast || memcmp(btpan_cb.conns[i].eth_addr, eth_hdr->h_dest, sizeof(BD_ADDR)) == 0
+                 || memcmp(btpan_cb.conns[i].peer, eth_hdr->h_dest, sizeof(BD_ADDR)) == 0)) {
+            int result = PAN_WriteBuf(handle, eth_hdr->h_dest, eth_hdr->h_src, ntohs(eth_hdr->h_proto), hdr, 0);
+            switch (result) {
+                case PAN_Q_SIZE_EXCEEDED:
+                    return FORWARD_CONGEST;
+                case PAN_SUCCESS:
+                    return FORWARD_SUCCESS;
+                default:
+                    return FORWARD_FAILURE;
+            }
+        }
+    }
+    osi_free(hdr);
+    return FORWARD_IGNORE;
+}
+
+static void bta_pan_callback_transfer(UINT16 event, char *p_param)
+{
+    tBTA_PAN *p_data = (tBTA_PAN *)p_param;
+
+    switch(event)
+    {
+        case BTA_PAN_ENABLE_EVT:
+            BTIF_TRACE_DEBUG("BTA_PAN_ENABLE_EVT");
+            break;
+        case BTA_PAN_SET_ROLE_EVT:
+            {
+                int btpan_role = bta_role_to_btpan(p_data->set_role.role);
+                bt_status_t status = p_data->set_role.status == BTA_PAN_SUCCESS ? BT_STATUS_SUCCESS : BT_STATUS_FAIL;
+                btpan_control_state_t state = btpan_role == 0 ? BTPAN_STATE_DISABLED : BTPAN_STATE_ENABLED;
+                callback.control_state_cb(state, btpan_role, status, TAP_IF_NAME);
+                break;
+            }
+        case BTA_PAN_OPENING_EVT:
+            {
+                btpan_conn_t* conn;
+                bdstr_t bds;
+                bdaddr_to_string((bt_bdaddr_t *)p_data->opening.bd_addr, bds, sizeof(bds));
+                BTIF_TRACE_DEBUG("BTA_PAN_OPENING_EVT handle %d, addr: %s", p_data->opening.handle, bds);
+                conn = btpan_find_conn_addr(p_data->opening.bd_addr);
+
+                asrt(conn != NULL);
+                if (conn)
+                {
+                    conn->handle = p_data->opening.handle;
+                    int btpan_conn_local_role = bta_role_to_btpan(conn->local_role);
+                    int btpan_remote_role = bta_role_to_btpan(conn->remote_role);
+                    callback.connection_state_cb(BTPAN_STATE_CONNECTING, BT_STATUS_SUCCESS,
+                            (const bt_bdaddr_t*)p_data->opening.bd_addr, btpan_conn_local_role, btpan_remote_role);
+                }
+                else
+                    BTIF_TRACE_ERROR("connection not found");
+                break;
+            }
+        case BTA_PAN_OPEN_EVT:
+            {
+                btpan_connection_state_t state;
+                bt_status_t status;
+                btpan_conn_t *conn = btpan_find_conn_handle(p_data->open.handle);
+
+                LOG_VERBOSE(LOG_TAG, "%s pan connection open status: %d", __func__, p_data->open.status);
+                if (p_data->open.status == BTA_PAN_SUCCESS)
+                {
+                    state = BTPAN_STATE_CONNECTED;
+                    status = BT_STATUS_SUCCESS;
+                    btpan_open_conn(conn, p_data);
+                }
+                else
+                {
+                    state = BTPAN_STATE_DISCONNECTED;
+                    status = BT_STATUS_FAIL;
+                    btpan_cleanup_conn(conn);
+                }
+                /* debug("BTA_PAN_OPEN_EVT handle:%d, conn:%p",  p_data->open.handle, conn); */
+                /* debug("conn bta local_role:%d, bta remote role:%d", conn->local_role, conn->remote_role); */
+                int btpan_conn_local_role = bta_role_to_btpan(p_data->open.local_role);
+                int btpan_remote_role = bta_role_to_btpan(p_data->open.peer_role);
+                callback.connection_state_cb(state, status, (const bt_bdaddr_t*)p_data->open.bd_addr,
+                        btpan_conn_local_role, btpan_remote_role);
+                break;
+            }
+        case BTA_PAN_CLOSE_EVT:
+            {
+                LOG_INFO(LOG_TAG, "%s: event = BTA_PAN_CLOSE_EVT handle %d", __FUNCTION__, p_data->close.handle);
+                btpan_conn_t* conn = btpan_find_conn_handle(p_data->close.handle);
+                btpan_close_conn(conn);
+
+                if (conn && conn->handle >= 0)
+                {
+                    int btpan_conn_local_role = bta_role_to_btpan(conn->local_role);
+                    int btpan_remote_role = bta_role_to_btpan(conn->remote_role);
+                    callback.connection_state_cb(BTPAN_STATE_DISCONNECTED, 0, (const bt_bdaddr_t*)conn->peer,
+                            btpan_conn_local_role, btpan_remote_role);
+                    btpan_cleanup_conn(conn);
+                }
+                else
+                    BTIF_TRACE_ERROR("pan handle not found (%d)", p_data->close.handle);
+                break;
+            }
+        default:
+            BTIF_TRACE_WARNING("Unknown pan event %d", event);
+            break;
+    }
+}
+
+static void bta_pan_callback(tBTA_PAN_EVT event, tBTA_PAN *p_data)
+{
+    btif_transfer_context(bta_pan_callback_transfer, event, (char*)p_data, sizeof(tBTA_PAN), NULL);
+}
+
+#define IS_EXCEPTION(e) ((e) & (POLLHUP | POLLRDHUP | POLLERR | POLLNVAL))
+static void btu_exec_tap_fd_read(void *p_param) {
+    struct pollfd ufd;
+    int fd = PTR_TO_INT(p_param);
+
+    if (fd == INVALID_FD || fd != btpan_cb.tap_fd)
+        return;
+
+    // Don't occupy BTU context too long, avoid buffer overruns and
+    // give other profiles a chance to run by limiting the amount of memory
+    // PAN can use.
+    for (int i = 0; i < PAN_BUF_MAX && btif_is_enabled() && btpan_cb.flow; i++) {
+        BT_HDR *buffer = (BT_HDR *)osi_malloc(PAN_BUF_SIZE);
+        buffer->offset = PAN_MINIMUM_OFFSET;
+        buffer->len = PAN_BUF_SIZE - sizeof(BT_HDR) - buffer->offset;
+
+        UINT8 *packet = (UINT8 *)buffer + sizeof(BT_HDR) + buffer->offset;
+
+        // If we don't have an undelivered packet left over, pull one from the TAP driver.
+        // We save it in the congest_packet right away in case we can't deliver it in this
+        // attempt.
+        if (!btpan_cb.congest_packet_size) {
+            ssize_t ret;
+            OSI_NO_INTR(ret = read(fd, btpan_cb.congest_packet,
+                                   sizeof(btpan_cb.congest_packet)));
+            switch (ret) {
+                case -1:
+                    BTIF_TRACE_ERROR("%s unable to read from driver: %s", __func__, strerror(errno));
+                    osi_free(buffer);
+                    //add fd back to monitor thread to try it again later
+                    btsock_thread_add_fd(pan_pth, fd, 0, SOCK_THREAD_FD_RD, 0);
+                    return;
+                case 0:
+                    BTIF_TRACE_WARNING("%s end of file reached.", __func__);
+                    osi_free(buffer);
+                    //add fd back to monitor thread to process the exception
+                    btsock_thread_add_fd(pan_pth, fd, 0, SOCK_THREAD_FD_RD, 0);
+                    return;
+                default:
+                    btpan_cb.congest_packet_size = ret;
+                    break;
+            }
+        }
+
+        memcpy(packet, btpan_cb.congest_packet, MIN(btpan_cb.congest_packet_size, buffer->len));
+        buffer->len = MIN(btpan_cb.congest_packet_size, buffer->len);
+
+        if (buffer->len > sizeof(tETH_HDR) && should_forward((tETH_HDR *)packet)) {
+            // Extract the ethernet header from the buffer since the PAN_WriteBuf inside
+            // forward_bnep can't handle two pointers that point inside the same GKI buffer.
+            tETH_HDR hdr;
+            memcpy(&hdr, packet, sizeof(tETH_HDR));
+
+            // Skip the ethernet header.
+            buffer->len -= sizeof(tETH_HDR);
+            buffer->offset += sizeof(tETH_HDR);
+            if (forward_bnep(&hdr, buffer) != FORWARD_CONGEST)
+                btpan_cb.congest_packet_size = 0;
+        } else {
+            BTIF_TRACE_WARNING("%s dropping packet of length %d", __func__, buffer->len);
+            btpan_cb.congest_packet_size = 0;
+            osi_free(buffer);
+        }
+
+        // Bail out of the loop if reading from the TAP fd would block.
+        ufd.fd = fd;
+        ufd.events = POLLIN;
+        ufd.revents = 0;
+
+        int ret;
+        OSI_NO_INTR(ret = poll(&ufd, 1, 0));
+        if (ret <= 0 || IS_EXCEPTION(ufd.revents))
+            break;
+    }
+
+    if (btpan_cb.flow) {
+        //add fd back to monitor thread when the flow is on
+        btsock_thread_add_fd(pan_pth, fd, 0, SOCK_THREAD_FD_RD, 0);
+    }
+}
+
+static void btif_pan_close_all_conns() {
+    if (!stack_initialized)
+        return;
+
+    for (int i = 0; i < MAX_PAN_CONNS; ++i)
+    {
+        if (btpan_cb.conns[i].handle != -1)
+            BTA_PanClose(btpan_cb.conns[i].handle);
+    }
+}
+
+static void btpan_tap_fd_signaled(int fd, int type, int flags, uint32_t user_id) {
+    assert(btpan_cb.tap_fd == INVALID_FD || btpan_cb.tap_fd == fd);
+
+    if (btpan_cb.tap_fd != fd) {
+        BTIF_TRACE_WARNING("%s Signaled on mismatched fds exp:%d act:%d\n",
+                __func__, btpan_cb.tap_fd, fd);
+        return;
+    }
+
+    if (flags & SOCK_THREAD_FD_EXCEPTION) {
+        btpan_cb.tap_fd = INVALID_FD;
+        btpan_tap_close(fd);
+        btif_pan_close_all_conns();
+    } else if (flags & SOCK_THREAD_FD_RD)
+        bta_dmexecutecallback(btu_exec_tap_fd_read, INT_TO_PTR(fd));
+}
diff --git a/rtkbt/code/bt/btif/src/btif_profile_queue.c b/rtkbt/code/bt/btif/src/btif_profile_queue.c
new file mode 100755
index 0000000..cb01dc7
--- /dev/null
+++ b/rtkbt/code/bt/btif/src/btif_profile_queue.c
@@ -0,0 +1,174 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/*******************************************************************************
+ *
+ *  Filename:      btif_profile_queue.c
+ *
+ *  Description:   Bluetooth remote device connection queuing implementation.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_btif_queue"
+
+#include "btif_profile_queue.h"
+
+#include <assert.h>
+#include <string.h>
+
+#include "btif_common.h"
+#include "bt_common.h"
+#include "osi/include/allocator.h"
+#include "osi/include/list.h"
+#include "stack_manager.h"
+
+/*******************************************************************************
+**  Local type definitions
+*******************************************************************************/
+
+typedef enum {
+  BTIF_QUEUE_CONNECT_EVT,
+  BTIF_QUEUE_ADVANCE_EVT,
+} btif_queue_event_t;
+
+typedef struct {
+    bt_bdaddr_t bda;
+    uint16_t uuid;
+    bool busy;
+    btif_connect_cb_t connect_cb;
+} connect_node_t;
+
+/*******************************************************************************
+**  Static variables
+*******************************************************************************/
+
+static list_t *connect_queue;
+
+static const size_t MAX_REASONABLE_REQUESTS = 10;
+
+/*******************************************************************************
+**  Queue helper functions
+*******************************************************************************/
+
+static void queue_int_add(connect_node_t *p_param) {
+    if (!connect_queue) {
+        connect_queue = list_new(osi_free);
+        assert(connect_queue != NULL);
+    }
+
+    // Sanity check to make sure we're not leaking connection requests
+    assert(list_length(connect_queue) < MAX_REASONABLE_REQUESTS);
+
+    for (const list_node_t *node = list_begin(connect_queue); node != list_end(connect_queue); node = list_next(node)) {
+        if (((connect_node_t *)list_node(node))->uuid == p_param->uuid) {
+            LOG_INFO(LOG_TAG, "%s dropping duplicate connect request for uuid: %04x", __func__, p_param->uuid);
+            return;
+        }
+    }
+
+    connect_node_t *p_node = osi_malloc(sizeof(connect_node_t));
+    memcpy(p_node, p_param, sizeof(connect_node_t));
+    list_append(connect_queue, p_node);
+}
+
+static void queue_int_advance() {
+    if (connect_queue && !list_is_empty(connect_queue))
+        list_remove(connect_queue, list_front(connect_queue));
+}
+
+static void queue_int_handle_evt(UINT16 event, char *p_param) {
+    switch(event) {
+        case BTIF_QUEUE_CONNECT_EVT:
+            queue_int_add((connect_node_t *)p_param);
+            break;
+
+        case BTIF_QUEUE_ADVANCE_EVT:
+            queue_int_advance();
+            break;
+    }
+
+    if (stack_manager_get_interface()->get_stack_is_running())
+        btif_queue_connect_next();
+}
+
+/*******************************************************************************
+**
+** Function         btif_queue_connect
+**
+** Description      Add a new connection to the queue and trigger the next
+**                  scheduled connection.
+**
+** Returns          BT_STATUS_SUCCESS if successful
+**
+*******************************************************************************/
+bt_status_t btif_queue_connect(uint16_t uuid, const bt_bdaddr_t *bda, btif_connect_cb_t connect_cb) {
+    connect_node_t node;
+    memset(&node, 0, sizeof(connect_node_t));
+    memcpy(&node.bda, bda, sizeof(bt_bdaddr_t));
+    node.uuid = uuid;
+    node.connect_cb = connect_cb;
+
+    return btif_transfer_context(queue_int_handle_evt, BTIF_QUEUE_CONNECT_EVT,
+                          (char *)&node, sizeof(connect_node_t), NULL);
+}
+
+/*******************************************************************************
+**
+** Function         btif_queue_advance
+**
+** Description      Clear the queue's busy status and advance to the next
+**                  scheduled connection.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btif_queue_advance() {
+    btif_transfer_context(queue_int_handle_evt, BTIF_QUEUE_ADVANCE_EVT,
+                          NULL, 0, NULL);
+}
+
+// This function dispatches the next pending connect request. It is called from
+// stack_manager when the stack comes up.
+bt_status_t btif_queue_connect_next(void) {
+    if (!connect_queue || list_is_empty(connect_queue))
+        return BT_STATUS_FAIL;
+
+    connect_node_t *p_head = list_front(connect_queue);
+
+    // If the queue is currently busy, we return success anyway,
+    // since the connection has been queued...
+    if (p_head->busy)
+        return BT_STATUS_SUCCESS;
+
+    p_head->busy = true;
+    return p_head->connect_cb(&p_head->bda, p_head->uuid);
+}
+
+/*******************************************************************************
+**
+** Function         btif_queue_release
+**
+** Description      Free up all the queue nodes and set the queue head to NULL
+**
+** Returns          void
+**
+*******************************************************************************/
+void btif_queue_release() {
+    list_free(connect_queue);
+    connect_queue = NULL;
+}
diff --git a/rtkbt/code/bt/btif/src/btif_rc.c b/rtkbt/code/bt/btif/src/btif_rc.c
new file mode 100755
index 0000000..ff221f4
--- /dev/null
+++ b/rtkbt/code/bt/btif/src/btif_rc.c
@@ -0,0 +1,4280 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*****************************************************************************
+ *
+ *  Filename:      btif_rc.c
+ *
+ *  Description:   Bluetooth AVRC implementation
+ *
+ *****************************************************************************/
+
+#define LOG_TAG "bt_btif_avrc"
+
+#include <errno.h>
+#include <fcntl.h>
+#include <pthread.h>
+#include <string.h>
+#include <time.h>
+#include <unistd.h>
+
+#include <hardware/bluetooth.h>
+#include <hardware/bt_rc.h>
+
+#include "avrc_defs.h"
+#include "bta_api.h"
+#include "bta_av_api.h"
+#include "btif_av.h"
+#include "btif_common.h"
+#include "btif_util.h"
+#include "bt_common.h"
+#include "device/include/interop.h"
+#include "uinput.h"
+#include "bdaddr.h"
+#include "osi/include/list.h"
+#include "osi/include/properties.h"
+#include "btu.h"
+#define RC_INVALID_TRACK_ID (0xFFFFFFFFFFFFFFFFULL)
+
+/*****************************************************************************
+**  Constants & Macros
+******************************************************************************/
+
+/* cod value for Headsets */
+#define COD_AV_HEADSETS        0x0404
+/* for AVRC 1.4 need to change this */
+#define MAX_RC_NOTIFICATIONS AVRC_EVT_VOLUME_CHANGE
+
+#define IDX_GET_PLAY_STATUS_RSP   0
+#define IDX_LIST_APP_ATTR_RSP     1
+#define IDX_LIST_APP_VALUE_RSP    2
+#define IDX_GET_CURR_APP_VAL_RSP  3
+#define IDX_SET_APP_VAL_RSP       4
+#define IDX_GET_APP_ATTR_TXT_RSP  5
+#define IDX_GET_APP_VAL_TXT_RSP   6
+#define IDX_GET_ELEMENT_ATTR_RSP  7
+#define MAX_VOLUME 128
+#define MAX_LABEL 16
+#define MAX_TRANSACTIONS_PER_SESSION 16
+#define MAX_CMD_QUEUE_LEN 8
+#define PLAY_STATUS_PLAYING 1
+
+#define CHECK_RC_CONNECTED                                                                  \
+    BTIF_TRACE_DEBUG("## %s ##", __FUNCTION__);                                            \
+    if (btif_rc_cb.rc_connected == FALSE)                                                    \
+    {                                                                                       \
+        BTIF_TRACE_WARNING("Function %s() called when RC is not connected", __FUNCTION__); \
+        return BT_STATUS_NOT_READY;                                                         \
+    }
+
+#define FILL_PDU_QUEUE(index, ctype, label, pending)        \
+{                                                           \
+    btif_rc_cb.rc_pdu_info[index].ctype = ctype;            \
+    btif_rc_cb.rc_pdu_info[index].label = label;            \
+    btif_rc_cb.rc_pdu_info[index].is_rsp_pending = pending; \
+}
+
+#define SEND_METAMSG_RSP(index, avrc_rsp)                                                      \
+{                                                                                              \
+    if (btif_rc_cb.rc_pdu_info[index].is_rsp_pending == FALSE)                                  \
+    {                                                                                          \
+        BTIF_TRACE_WARNING("%s Not sending response as no PDU was registered", __FUNCTION__); \
+        return BT_STATUS_UNHANDLED;                                                            \
+    }                                                                                          \
+    send_metamsg_rsp(btif_rc_cb.rc_handle, btif_rc_cb.rc_pdu_info[index].label,                \
+        btif_rc_cb.rc_pdu_info[index].ctype, avrc_rsp);                                        \
+    btif_rc_cb.rc_pdu_info[index].ctype = 0;                                                   \
+    btif_rc_cb.rc_pdu_info[index].label = 0;                                                   \
+    btif_rc_cb.rc_pdu_info[index].is_rsp_pending = FALSE;                                      \
+}
+
+/*****************************************************************************
+**  Local type definitions
+******************************************************************************/
+typedef struct {
+    UINT8 bNotify;
+    UINT8 label;
+} btif_rc_reg_notifications_t;
+
+typedef struct
+{
+    UINT8   label;
+    UINT8   ctype;
+    BOOLEAN is_rsp_pending;
+} btif_rc_cmd_ctxt_t;
+
+/* 2 second timeout to get interim response */
+#define BTIF_TIMEOUT_RC_INTERIM_RSP_MS     (2 * 1000)
+#define BTIF_TIMEOUT_RC_STATUS_CMD_MS      (2 * 1000)
+#define BTIF_TIMEOUT_RC_CONTROL_CMD_MS     (2 * 1000)
+
+
+typedef enum
+{
+    eNOT_REGISTERED,
+    eREGISTERED,
+    eINTERIM
+} btif_rc_nfn_reg_status_t;
+
+typedef struct {
+    UINT8                       event_id;
+    UINT8                       label;
+    btif_rc_nfn_reg_status_t    status;
+} btif_rc_supported_event_t;
+
+#define BTIF_RC_STS_TIMEOUT     0xFE
+typedef struct {
+    UINT8   label;
+    UINT8   pdu_id;
+} btif_rc_status_cmd_timer_t;
+
+typedef struct {
+    UINT8   label;
+    UINT8   pdu_id;
+} btif_rc_control_cmd_timer_t;
+
+typedef struct {
+    union {
+        btif_rc_status_cmd_timer_t rc_status_cmd;
+        btif_rc_control_cmd_timer_t rc_control_cmd;
+    };
+} btif_rc_timer_context_t;
+
+typedef struct {
+    BOOLEAN  query_started;
+    UINT8 num_attrs;
+    UINT8 num_ext_attrs;
+
+    UINT8 attr_index;
+    UINT8 ext_attr_index;
+    UINT8 ext_val_index;
+    btrc_player_app_attr_t attrs[AVRC_MAX_APP_ATTR_SIZE];
+    btrc_player_app_ext_attr_t ext_attrs[AVRC_MAX_APP_ATTR_SIZE];
+} btif_rc_player_app_settings_t;
+
+/* TODO : Merge btif_rc_reg_notifications_t and btif_rc_cmd_ctxt_t to a single struct */
+typedef struct {
+    BOOLEAN                     rc_connected;
+    UINT8                       rc_handle;
+    tBTA_AV_FEAT                rc_features;
+    BD_ADDR                     rc_addr;
+    UINT16                      rc_pending_play;
+    btif_rc_cmd_ctxt_t          rc_pdu_info[MAX_CMD_QUEUE_LEN];
+    btif_rc_reg_notifications_t rc_notif[MAX_RC_NOTIFICATIONS];
+    unsigned int                rc_volume;
+    uint8_t                     rc_vol_label;
+    list_t                      *rc_supported_event_list;
+    btif_rc_player_app_settings_t   rc_app_settings;
+    alarm_t                     *rc_play_status_timer;
+    BOOLEAN                     rc_features_processed;
+    UINT64                      rc_playing_uid;
+    BOOLEAN                     rc_procedure_complete;
+} btif_rc_cb_t;
+
+typedef struct {
+    BOOLEAN in_use;
+    UINT8 lbl;
+    UINT8 handle;
+    btif_rc_timer_context_t txn_timer_context;
+    alarm_t *txn_timer;
+} rc_transaction_t;
+
+typedef struct
+{
+    pthread_mutex_t lbllock;
+    rc_transaction_t transaction[MAX_TRANSACTIONS_PER_SESSION];
+} rc_device_t;
+
+rc_device_t device;
+
+#define MAX_UINPUT_PATHS 3
+static const char* uinput_dev_path[] =
+                       {"/dev/uinput", "/dev/input/uinput", "/dev/misc/uinput" };
+static int uinput_fd = -1;
+
+static int  send_event (int fd, uint16_t type, uint16_t code, int32_t value);
+static void send_key (int fd, uint16_t key, int pressed);
+static int  uinput_driver_check();
+static int  uinput_create(char *name);
+static int  init_uinput (void);
+static void close_uinput (void);
+static void sleep_ms(period_ms_t timeout_ms);
+
+static const struct {
+    const char *name;
+    uint8_t avrcp;
+    uint16_t mapped_id;
+    uint8_t release_quirk;
+} key_map[] = {
+    { "PLAY",         AVRC_ID_PLAY,     KEY_PLAYCD,       1 },
+    { "STOP",         AVRC_ID_STOP,     KEY_STOPCD,       0 },
+    { "PAUSE",        AVRC_ID_PAUSE,    KEY_PAUSECD,      1 },
+    { "FORWARD",      AVRC_ID_FORWARD,  KEY_NEXTSONG,     0 },
+    { "BACKWARD",     AVRC_ID_BACKWARD, KEY_PREVIOUSSONG, 0 },
+    { "REWIND",       AVRC_ID_REWIND,   KEY_REWIND,       0 },
+    { "FAST FORWARD", AVRC_ID_FAST_FOR, KEY_FAST_FORWARD, 0 },
+    { NULL,           0,                0,                0 }
+};
+
+static void send_reject_response (UINT8 rc_handle, UINT8 label,
+    UINT8 pdu, UINT8 status);
+static UINT8 opcode_from_pdu(UINT8 pdu);
+static void send_metamsg_rsp (UINT8 rc_handle, UINT8 label,
+    tBTA_AV_CODE code, tAVRC_RESPONSE *pmetamsg_resp);
+#if (AVRC_ADV_CTRL_INCLUDED == TRUE)
+static void register_volumechange(UINT8 label);
+#endif
+static void lbl_init();
+static void lbl_destroy();
+static void init_all_transactions();
+static bt_status_t  get_transaction(rc_transaction_t **ptransaction);
+static void release_transaction(UINT8 label);
+static rc_transaction_t* get_transaction_by_lbl(UINT8 label);
+#if (AVRC_ADV_CTRL_INCLUDED == TRUE)
+static void handle_rc_metamsg_rsp(tBTA_AV_META_MSG *pmeta_msg);
+#endif
+#if (AVRC_CTLR_INCLUDED == TRUE)
+static void handle_avk_rc_metamsg_cmd(tBTA_AV_META_MSG *pmeta_msg);
+static void handle_avk_rc_metamsg_rsp(tBTA_AV_META_MSG *pmeta_msg);
+static void btif_rc_ctrl_upstreams_rsp_cmd(
+    UINT8 event, tAVRC_COMMAND *pavrc_cmd, UINT8 label);
+static void rc_ctrl_procedure_complete();
+static void rc_stop_play_status_timer();
+static void register_for_event_notification (btif_rc_supported_event_t *p_event);
+static void handle_get_capability_response (tBTA_AV_META_MSG *pmeta_msg, tAVRC_GET_CAPS_RSP *p_rsp);
+static void handle_app_attr_response (tBTA_AV_META_MSG *pmeta_msg, tAVRC_LIST_APP_ATTR_RSP *p_rsp);
+static void handle_app_val_response (tBTA_AV_META_MSG *pmeta_msg, tAVRC_LIST_APP_VALUES_RSP *p_rsp);
+static void handle_app_cur_val_response (tBTA_AV_META_MSG *pmeta_msg, tAVRC_GET_CUR_APP_VALUE_RSP *p_rsp);
+static void handle_app_attr_txt_response (tBTA_AV_META_MSG *pmeta_msg, tAVRC_GET_APP_ATTR_TXT_RSP *p_rsp);
+static void handle_app_attr_val_txt_response (tBTA_AV_META_MSG *pmeta_msg, tAVRC_GET_APP_ATTR_TXT_RSP *p_rsp);
+static void handle_get_playstatus_response (tBTA_AV_META_MSG *pmeta_msg, tAVRC_GET_PLAY_STATUS_RSP *p_rsp);
+static void handle_get_elem_attr_response (tBTA_AV_META_MSG *pmeta_msg, tAVRC_GET_ELEM_ATTRS_RSP *p_rsp);
+static void handle_set_app_attr_val_response (tBTA_AV_META_MSG *pmeta_msg, tAVRC_RSP *p_rsp);
+static bt_status_t get_play_status_cmd(void);
+static bt_status_t get_player_app_setting_attr_text_cmd (UINT8 *attrs, UINT8 num_attrs);
+static bt_status_t get_player_app_setting_value_text_cmd (UINT8 *vals, UINT8 num_vals);
+static bt_status_t register_notification_cmd (UINT8 label, UINT8 event_id, UINT32 event_value);
+static bt_status_t get_element_attribute_cmd (uint8_t num_attribute, uint32_t *p_attr_ids);
+static bt_status_t getcapabilities_cmd (uint8_t cap_id);
+static bt_status_t list_player_app_setting_attrib_cmd(void);
+static bt_status_t list_player_app_setting_value_cmd(uint8_t attrib_id);
+static bt_status_t get_player_app_setting_cmd(uint8_t num_attrib, uint8_t* attrib_ids);
+#endif
+static void btif_rc_upstreams_evt(UINT16 event, tAVRC_COMMAND* p_param, UINT8 ctype, UINT8 label);
+#if (AVRC_ADV_CTRL_INCLUDED == TRUE)
+static void btif_rc_upstreams_rsp_evt(UINT16 event, tAVRC_RESPONSE *pavrc_resp, UINT8 ctype, UINT8 label);
+#endif
+static void rc_start_play_status_timer(void);
+static bool absolute_volume_disabled(void);
+
+/*****************************************************************************
+**  Static variables
+******************************************************************************/
+static btif_rc_cb_t btif_rc_cb;
+static btrc_callbacks_t *bt_rc_callbacks = NULL;
+static btrc_ctrl_callbacks_t *bt_rc_ctrl_callbacks = NULL;
+
+/*****************************************************************************
+**  Static functions
+******************************************************************************/
+
+/*****************************************************************************
+**  Externs
+******************************************************************************/
+extern BOOLEAN btif_hf_call_terminated_recently();
+extern BOOLEAN check_cod(const bt_bdaddr_t *remote_bdaddr, uint32_t cod);
+
+extern fixed_queue_t *btu_general_alarm_queue;
+
+/*****************************************************************************
+**  Functions
+******************************************************************************/
+
+/*****************************************************************************
+**   Local uinput helper functions
+******************************************************************************/
+int send_event (int fd, uint16_t type, uint16_t code, int32_t value)
+{
+    struct uinput_event event;
+    BTIF_TRACE_DEBUG("%s type:%u code:%u value:%d", __FUNCTION__,
+        type, code, value);
+    memset(&event, 0, sizeof(event));
+    event.type  = type;
+    event.code  = code;
+    event.value = value;
+
+    ssize_t ret;
+    OSI_NO_INTR(ret = write(fd, &event, sizeof(event)));
+    return (int)ret;
+}
+
+void send_key (int fd, uint16_t key, int pressed)
+{
+    BTIF_TRACE_DEBUG("%s fd:%d key:%u pressed:%d", __FUNCTION__,
+        fd, key, pressed);
+
+    if (fd < 0)
+    {
+        return;
+    }
+
+    BTIF_TRACE_DEBUG("AVRCP: Send key %d (%d) fd=%d", key, pressed, fd);
+    send_event(fd, EV_KEY, key, pressed);
+    send_event(fd, EV_SYN, SYN_REPORT, 0);
+}
+
+/************** uinput related functions **************/
+int uinput_driver_check()
+{
+    uint32_t i;
+    for (i=0; i < MAX_UINPUT_PATHS; i++)
+    {
+        if (access(uinput_dev_path[i], O_RDWR) == 0) {
+           return 0;
+        }
+    }
+    BTIF_TRACE_ERROR("%s ERROR: uinput device is not in the system", __FUNCTION__);
+    return -1;
+}
+
+int uinput_create(char *name)
+{
+    struct uinput_dev dev;
+    int fd, x = 0;
+
+    for(x=0; x < MAX_UINPUT_PATHS; x++)
+    {
+        fd = open(uinput_dev_path[x], O_RDWR);
+        if (fd < 0)
+            continue;
+        break;
+    }
+    if (x == MAX_UINPUT_PATHS) {
+        BTIF_TRACE_ERROR("%s ERROR: uinput device open failed", __FUNCTION__);
+        return -1;
+    }
+    memset(&dev, 0, sizeof(dev));
+    if (name)
+        strncpy(dev.name, name, UINPUT_MAX_NAME_SIZE-1);
+
+    dev.id.bustype = BUS_BLUETOOTH;
+    dev.id.vendor  = 0x0000;
+    dev.id.product = 0x0000;
+    dev.id.version = 0x0000;
+
+    ssize_t ret;
+    OSI_NO_INTR(ret = write(fd, &dev, sizeof(dev)));
+    if (ret < 0) {
+        BTIF_TRACE_ERROR("%s Unable to write device information", __FUNCTION__);
+        close(fd);
+        return -1;
+    }
+
+    ioctl(fd, UI_SET_EVBIT, EV_KEY);
+    ioctl(fd, UI_SET_EVBIT, EV_REL);
+    ioctl(fd, UI_SET_EVBIT, EV_SYN);
+
+    for (x = 0; key_map[x].name != NULL; x++)
+        ioctl(fd, UI_SET_KEYBIT, key_map[x].mapped_id);
+
+    if (ioctl(fd, UI_DEV_CREATE, NULL) < 0) {
+        BTIF_TRACE_ERROR("%s Unable to create uinput device", __FUNCTION__);
+        close(fd);
+        return -1;
+    }
+    return fd;
+}
+
+int init_uinput (void)
+{
+    char *name = "AVRCP";
+
+    BTIF_TRACE_DEBUG("%s", __FUNCTION__);
+    uinput_fd = uinput_create(name);
+    if (uinput_fd < 0) {
+        BTIF_TRACE_ERROR("%s AVRCP: Failed to initialize uinput for %s (%d)",
+                          __FUNCTION__, name, uinput_fd);
+    } else {
+        BTIF_TRACE_DEBUG("%s AVRCP: Initialized uinput for %s (fd=%d)",
+                          __FUNCTION__, name, uinput_fd);
+    }
+    return uinput_fd;
+}
+
+void close_uinput (void)
+{
+    BTIF_TRACE_DEBUG("%s", __FUNCTION__);
+    if (uinput_fd > 0) {
+        ioctl(uinput_fd, UI_DEV_DESTROY);
+
+        close(uinput_fd);
+        uinput_fd = -1;
+    }
+}
+
+#if (AVRC_CTLR_INCLUDED == TRUE)
+void rc_cleanup_sent_cmd (void *p_data)
+{
+    BTIF_TRACE_DEBUG("%s", __FUNCTION__);
+
+}
+
+void handle_rc_ctrl_features(BD_ADDR bd_addr)
+{
+    if ((btif_rc_cb.rc_features & BTA_AV_FEAT_RCTG)||
+       ((btif_rc_cb.rc_features & BTA_AV_FEAT_RCCT)&&
+        (btif_rc_cb.rc_features & BTA_AV_FEAT_ADV_CTRL)))
+    {
+        bt_bdaddr_t rc_addr;
+        int rc_features = 0;
+        bdcpy(rc_addr.address,bd_addr);
+
+        if ((btif_rc_cb.rc_features & BTA_AV_FEAT_ADV_CTRL)&&
+             (btif_rc_cb.rc_features & BTA_AV_FEAT_RCCT))
+        {
+            rc_features |= BTRC_FEAT_ABSOLUTE_VOLUME;
+        }
+        if ((btif_rc_cb.rc_features & BTA_AV_FEAT_METADATA)&&
+            (btif_rc_cb.rc_features & BTA_AV_FEAT_VENDOR)&&
+            (btif_rc_cb.rc_features_processed != TRUE))
+        {
+            rc_features |= BTRC_FEAT_METADATA;
+            /* Mark rc features processed to avoid repeating
+             * the AVRCP procedure every time on receiving this
+             * update.
+             */
+            btif_rc_cb.rc_features_processed = TRUE;
+
+            if (btif_av_is_sink_enabled())
+                getcapabilities_cmd (AVRC_CAP_COMPANY_ID);
+        }
+        BTIF_TRACE_DEBUG("%s Update rc features to CTRL %d", __FUNCTION__, rc_features);
+        HAL_CBACK(bt_rc_ctrl_callbacks, getrcfeatures_cb, &rc_addr, rc_features);
+    }
+}
+#endif
+
+void handle_rc_features(BD_ADDR bd_addr)
+{
+    if (bt_rc_callbacks != NULL)
+    {
+    btrc_remote_features_t rc_features = BTRC_FEAT_NONE;
+    bt_bdaddr_t rc_addr;
+
+    bdcpy(rc_addr.address, btif_rc_cb.rc_addr);
+    bt_bdaddr_t avdtp_addr  = btif_av_get_addr();
+
+    bdstr_t addr1, addr2;
+    BTIF_TRACE_DEBUG("%s: AVDTP Address: %s AVCTP address: %s", __func__,
+                     bdaddr_to_string(&avdtp_addr, addr1, sizeof(addr1)),
+                     bdaddr_to_string(&rc_addr, addr2, sizeof(addr2)));
+
+    if (interop_match_addr(INTEROP_DISABLE_ABSOLUTE_VOLUME, &rc_addr)
+        || absolute_volume_disabled()
+        || bdcmp(avdtp_addr.address, rc_addr.address))
+        btif_rc_cb.rc_features &= ~BTA_AV_FEAT_ADV_CTRL;
+
+    if (btif_rc_cb.rc_features & BTA_AV_FEAT_BROWSE)
+    {
+        rc_features |= BTRC_FEAT_BROWSE;
+    }
+
+#if (AVRC_ADV_CTRL_INCLUDED == TRUE)
+    if ( (btif_rc_cb.rc_features & BTA_AV_FEAT_ADV_CTRL) &&
+         (btif_rc_cb.rc_features & BTA_AV_FEAT_RCTG))
+    {
+        rc_features |= BTRC_FEAT_ABSOLUTE_VOLUME;
+    }
+#endif
+
+    if (btif_rc_cb.rc_features & BTA_AV_FEAT_METADATA)
+    {
+        rc_features |= BTRC_FEAT_METADATA;
+    }
+
+    BTIF_TRACE_DEBUG("%s: rc_features=0x%x", __FUNCTION__, rc_features);
+    HAL_CBACK(bt_rc_callbacks, remote_features_cb, &rc_addr, rc_features)
+
+#if (AVRC_ADV_CTRL_INCLUDED == TRUE)
+     BTIF_TRACE_DEBUG("%s Checking for feature flags in btif_rc_handler with label %d",
+                        __FUNCTION__, btif_rc_cb.rc_vol_label);
+     // Register for volume change on connect
+      if (btif_rc_cb.rc_features & BTA_AV_FEAT_ADV_CTRL &&
+         btif_rc_cb.rc_features & BTA_AV_FEAT_RCTG)
+      {
+         rc_transaction_t *p_transaction=NULL;
+         bt_status_t status = BT_STATUS_NOT_READY;
+         if (MAX_LABEL==btif_rc_cb.rc_vol_label)
+         {
+            status=get_transaction(&p_transaction);
+         }
+         else
+         {
+            p_transaction=get_transaction_by_lbl(btif_rc_cb.rc_vol_label);
+            if (NULL!=p_transaction)
+            {
+               BTIF_TRACE_DEBUG("%s register_volumechange already in progress for label %d",
+                                  __FUNCTION__, btif_rc_cb.rc_vol_label);
+               return;
+            }
+            else
+              status=get_transaction(&p_transaction);
+         }
+
+         if (BT_STATUS_SUCCESS == status && NULL!=p_transaction)
+         {
+            btif_rc_cb.rc_vol_label=p_transaction->lbl;
+            register_volumechange(btif_rc_cb.rc_vol_label);
+         }
+       }
+#endif
+    }
+}
+
+/***************************************************************************
+ *  Function       handle_rc_connect
+ *
+ *  - Argument:    tBTA_AV_RC_OPEN  RC open data structure
+ *
+ *  - Description: RC connection event handler
+ *
+ ***************************************************************************/
+void handle_rc_connect (tBTA_AV_RC_OPEN *p_rc_open)
+{
+    BTIF_TRACE_DEBUG("%s: rc_handle: %d", __FUNCTION__, p_rc_open->rc_handle);
+    bt_status_t result = BT_STATUS_SUCCESS;
+#if (AVRC_CTLR_INCLUDED == TRUE)
+    bt_bdaddr_t rc_addr;
+#endif
+
+    if (p_rc_open->status == BTA_AV_SUCCESS)
+    {
+        //check if already some RC is connected
+        if (btif_rc_cb.rc_connected)
+        {
+            BTIF_TRACE_ERROR("%s Got RC OPEN in connected state, Connected RC: %d \
+                and Current RC: %d", __FUNCTION__, btif_rc_cb.rc_handle,p_rc_open->rc_handle );
+            if ((btif_rc_cb.rc_handle != p_rc_open->rc_handle)
+                && (bdcmp(btif_rc_cb.rc_addr, p_rc_open->peer_addr)))
+            {
+                BTIF_TRACE_DEBUG("%s Got RC connected for some other handle", __FUNCTION__);
+                BTA_AvCloseRc(p_rc_open->rc_handle);
+                return;
+            }
+        }
+        memcpy(btif_rc_cb.rc_addr, p_rc_open->peer_addr, sizeof(BD_ADDR));
+        btif_rc_cb.rc_features = p_rc_open->peer_features;
+        btif_rc_cb.rc_vol_label=MAX_LABEL;
+        btif_rc_cb.rc_volume=MAX_VOLUME;
+
+        btif_rc_cb.rc_connected = TRUE;
+        btif_rc_cb.rc_handle = p_rc_open->rc_handle;
+
+        /* on locally initiated connection we will get remote features as part of connect */
+        if (btif_rc_cb.rc_features != 0)
+            handle_rc_features(btif_rc_cb.rc_addr);
+        if (bt_rc_callbacks)
+        {
+            result = uinput_driver_check();
+            if (result == BT_STATUS_SUCCESS)
+            {
+                init_uinput();
+            }
+        }
+        else
+        {
+            BTIF_TRACE_WARNING("%s Avrcp TG role not enabled, not initializing UInput",
+                               __FUNCTION__);
+        }
+        BTIF_TRACE_DEBUG("%s handle_rc_connect features %d ",__FUNCTION__, btif_rc_cb.rc_features);
+#if (AVRC_CTLR_INCLUDED == TRUE)
+        btif_rc_cb.rc_playing_uid = RC_INVALID_TRACK_ID;
+        bdcpy(rc_addr.address, btif_rc_cb.rc_addr);
+        if (bt_rc_ctrl_callbacks != NULL)
+        {
+            HAL_CBACK(bt_rc_ctrl_callbacks, connection_state_cb, TRUE, &rc_addr);
+        }
+        /* report connection state if remote device is AVRCP target */
+        if ((btif_rc_cb.rc_features & BTA_AV_FEAT_RCTG)||
+           ((btif_rc_cb.rc_features & BTA_AV_FEAT_RCCT)&&
+            (btif_rc_cb.rc_features & BTA_AV_FEAT_ADV_CTRL)))
+        {
+            handle_rc_ctrl_features(btif_rc_cb.rc_addr);
+        }
+#endif
+    }
+    else
+    {
+        BTIF_TRACE_ERROR("%s Connect failed with error code: %d",
+            __FUNCTION__, p_rc_open->status);
+        btif_rc_cb.rc_connected = FALSE;
+    }
+}
+
+/***************************************************************************
+ *  Function       handle_rc_disconnect
+ *
+ *  - Argument:    tBTA_AV_RC_CLOSE     RC close data structure
+ *
+ *  - Description: RC disconnection event handler
+ *
+ ***************************************************************************/
+void handle_rc_disconnect (tBTA_AV_RC_CLOSE *p_rc_close)
+{
+#if (AVRC_CTLR_INCLUDED == TRUE)
+    bt_bdaddr_t rc_addr;
+    tBTA_AV_FEAT features;
+#endif
+    BTIF_TRACE_DEBUG("%s: rc_handle: %d", __FUNCTION__, p_rc_close->rc_handle);
+    if ((p_rc_close->rc_handle != btif_rc_cb.rc_handle)
+        && (bdcmp(btif_rc_cb.rc_addr, p_rc_close->peer_addr)))
+    {
+        BTIF_TRACE_ERROR("Got disconnect of unknown device");
+        return;
+    }
+#if (AVRC_CTLR_INCLUDED == TRUE)
+    bdcpy(rc_addr.address, btif_rc_cb.rc_addr);
+    features = btif_rc_cb.rc_features;
+        /* Clean up AVRCP procedure flags */
+    memset(&btif_rc_cb.rc_app_settings, 0,
+        sizeof(btif_rc_player_app_settings_t));
+    btif_rc_cb.rc_features_processed = FALSE;
+    btif_rc_cb.rc_procedure_complete = FALSE;
+    rc_stop_play_status_timer();
+    /* Check and clear the notification event list */
+    if (btif_rc_cb.rc_supported_event_list != NULL)
+    {
+        list_clear(btif_rc_cb.rc_supported_event_list);
+        btif_rc_cb.rc_supported_event_list = NULL;
+    }
+#endif
+    btif_rc_cb.rc_handle = 0;
+    btif_rc_cb.rc_connected = FALSE;
+    memset(btif_rc_cb.rc_addr, 0, sizeof(BD_ADDR));
+    memset(btif_rc_cb.rc_notif, 0, sizeof(btif_rc_cb.rc_notif));
+
+    btif_rc_cb.rc_features = 0;
+    btif_rc_cb.rc_vol_label=MAX_LABEL;
+    btif_rc_cb.rc_volume=MAX_VOLUME;
+    init_all_transactions();
+    if (bt_rc_callbacks != NULL)
+    {
+        close_uinput();
+    }
+    else
+    {
+        BTIF_TRACE_WARNING("%s Avrcp TG role not enabled, not closing UInput", __FUNCTION__);
+    }
+
+    memset(btif_rc_cb.rc_addr, 0, sizeof(BD_ADDR));
+#if (AVRC_CTLR_INCLUDED == TRUE)
+    /* report connection state if device is AVRCP target */
+    if (bt_rc_ctrl_callbacks != NULL)
+   {
+        HAL_CBACK(bt_rc_ctrl_callbacks, connection_state_cb, FALSE, &rc_addr);
+   }
+#endif
+}
+
+/***************************************************************************
+ *  Function       handle_rc_passthrough_cmd
+ *
+ *  - Argument:    tBTA_AV_RC rc_id   remote control command ID
+ *                 tBTA_AV_STATE key_state status of key press
+ *
+ *  - Description: Remote control command handler
+ *
+ ***************************************************************************/
+void handle_rc_passthrough_cmd ( tBTA_AV_REMOTE_CMD *p_remote_cmd)
+{
+    const char *status;
+    int pressed, i;
+
+    BTIF_TRACE_DEBUG("%s: p_remote_cmd->rc_id=%d", __FUNCTION__, p_remote_cmd->rc_id);
+
+    /* If AVRC is open and peer sends PLAY but there is no AVDT, then we queue-up this PLAY */
+    if (p_remote_cmd)
+    {
+        /* queue AVRC PLAY if GAVDTP Open notification to app is pending (2 second timer) */
+        if ((p_remote_cmd->rc_id == BTA_AV_RC_PLAY) && (!btif_av_is_connected()))
+        {
+            if (p_remote_cmd->key_state == AVRC_STATE_PRESS)
+            {
+                APPL_TRACE_WARNING("%s: AVDT not open, queuing the PLAY command", __FUNCTION__);
+                btif_rc_cb.rc_pending_play = TRUE;
+            }
+            return;
+        }
+
+        if ((p_remote_cmd->rc_id == BTA_AV_RC_PAUSE) && (btif_rc_cb.rc_pending_play))
+        {
+            APPL_TRACE_WARNING("%s: Clear the pending PLAY on PAUSE received", __FUNCTION__);
+            btif_rc_cb.rc_pending_play = FALSE;
+            return;
+        }
+        if ((p_remote_cmd->rc_id == BTA_AV_RC_VOL_UP)||(p_remote_cmd->rc_id == BTA_AV_RC_VOL_DOWN))
+            return; // this command is not to be sent to UINPUT, only needed for PTS
+    }
+
+    if ((p_remote_cmd->rc_id == BTA_AV_RC_STOP) && (!btif_av_stream_started_ready()))
+    {
+        APPL_TRACE_WARNING("%s: Stream suspended, ignore STOP cmd",__FUNCTION__);
+        return;
+    }
+
+    if (p_remote_cmd->key_state == AVRC_STATE_RELEASE) {
+        status = "released";
+        pressed = 0;
+    } else {
+        status = "pressed";
+        pressed = 1;
+    }
+
+    if (p_remote_cmd->rc_id == BTA_AV_RC_FAST_FOR || p_remote_cmd->rc_id == BTA_AV_RC_REWIND) {
+        HAL_CBACK(bt_rc_callbacks, passthrough_cmd_cb, p_remote_cmd->rc_id, pressed);
+        return;
+    }
+
+    for (i = 0; key_map[i].name != NULL; i++) {
+        if (p_remote_cmd->rc_id == key_map[i].avrcp) {
+            BTIF_TRACE_DEBUG("%s: %s %s", __FUNCTION__, key_map[i].name, status);
+
+           /* MusicPlayer uses a long_press_timeout of 1 second for PLAYPAUSE button
+            * and maps that to autoshuffle. So if for some reason release for PLAY/PAUSE
+            * comes 1 second after the press, the MediaPlayer UI goes into a bad state.
+            * The reason for the delay could be sniff mode exit or some AVDTP procedure etc.
+            * The fix is to generate a release right after the press and drown the 'actual'
+            * release.
+            */
+            if ((key_map[i].release_quirk == 1) && (pressed == 0))
+            {
+                BTIF_TRACE_DEBUG("%s: AVRC %s Release Faked earlier, drowned now",
+                                  __FUNCTION__, key_map[i].name);
+                return;
+            }
+            send_key(uinput_fd, key_map[i].mapped_id, pressed);
+            if ((key_map[i].release_quirk == 1) && (pressed == 1))
+            {
+                sleep_ms(30);
+                BTIF_TRACE_DEBUG("%s: AVRC %s Release quirk enabled, send release now",
+                                  __FUNCTION__, key_map[i].name);
+                send_key(uinput_fd, key_map[i].mapped_id, 0);
+            }
+            break;
+        }
+    }
+
+    if (key_map[i].name == NULL)
+        BTIF_TRACE_ERROR("%s AVRCP: unknown button 0x%02X %s", __FUNCTION__,
+                        p_remote_cmd->rc_id, status);
+}
+
+/***************************************************************************
+ *  Function       handle_rc_passthrough_rsp
+ *
+ *  - Argument:    tBTA_AV_REMOTE_RSP passthrough command response
+ *
+ *  - Description: Remote control passthrough response handler
+ *
+ ***************************************************************************/
+void handle_rc_passthrough_rsp ( tBTA_AV_REMOTE_RSP *p_remote_rsp)
+{
+#if (AVRC_CTLR_INCLUDED == TRUE)
+    const char *status;
+    if (btif_rc_cb.rc_features & BTA_AV_FEAT_RCTG)
+    {
+        int key_state;
+        if (p_remote_rsp->key_state == AVRC_STATE_RELEASE)
+        {
+            status = "released";
+            key_state = 1;
+        }
+        else
+        {
+            status = "pressed";
+            key_state = 0;
+        }
+
+        BTIF_TRACE_DEBUG("%s: rc_id=%d status=%s", __FUNCTION__, p_remote_rsp->rc_id, status);
+
+        release_transaction(p_remote_rsp->label);
+        if (bt_rc_ctrl_callbacks != NULL) {
+            HAL_CBACK(bt_rc_ctrl_callbacks, passthrough_rsp_cb, p_remote_rsp->rc_id, key_state);
+        }
+    }
+    else
+    {
+        BTIF_TRACE_ERROR("%s DUT does not support AVRCP controller role", __FUNCTION__);
+    }
+#else
+    BTIF_TRACE_ERROR("%s AVRCP controller role is not enabled", __FUNCTION__);
+#endif
+}
+
+/***************************************************************************
+ *  Function       handle_rc_vendorunique_rsp
+ *
+ *  - Argument:    tBTA_AV_REMOTE_RSP  command response
+ *
+ *  - Description: Remote control vendor unique response handler
+ *
+ ***************************************************************************/
+void handle_rc_vendorunique_rsp ( tBTA_AV_REMOTE_RSP *p_remote_rsp)
+{
+#if (AVRC_CTLR_INCLUDED == TRUE)
+    const char *status;
+    UINT8 vendor_id = 0;
+    if (btif_rc_cb.rc_features & BTA_AV_FEAT_RCTG)
+    {
+        int key_state;
+        if (p_remote_rsp->key_state == AVRC_STATE_RELEASE)
+        {
+            status = "released";
+            key_state = 1;
+        }
+        else
+        {
+            status = "pressed";
+            key_state = 0;
+        }
+
+        if (p_remote_rsp->len > 0)
+        {
+            if (p_remote_rsp->len >= AVRC_PASS_THRU_GROUP_LEN)
+                vendor_id = p_remote_rsp->p_data[AVRC_PASS_THRU_GROUP_LEN -1];
+            osi_free_and_reset((void **)&p_remote_rsp->p_data);
+        }
+        BTIF_TRACE_DEBUG("%s: vendor_id=%d status=%s", __FUNCTION__, vendor_id, status);
+
+        release_transaction(p_remote_rsp->label);
+        HAL_CBACK(bt_rc_ctrl_callbacks, groupnavigation_rsp_cb, vendor_id, key_state);
+    }
+    else
+    {
+        BTIF_TRACE_ERROR("%s Remote does not support AVRCP TG role", __FUNCTION__);
+    }
+#else
+    BTIF_TRACE_ERROR("%s AVRCP controller role is not enabled", __FUNCTION__);
+#endif
+}
+
+void handle_uid_changed_notification(tBTA_AV_META_MSG *pmeta_msg, tAVRC_COMMAND *pavrc_command)
+{
+    tAVRC_RESPONSE avrc_rsp = {0};
+    avrc_rsp.rsp.pdu = pavrc_command->pdu;
+    avrc_rsp.rsp.status = AVRC_STS_NO_ERROR;
+    avrc_rsp.rsp.opcode = pavrc_command->cmd.opcode;
+
+    avrc_rsp.reg_notif.event_id = pavrc_command->reg_notif.event_id;
+    avrc_rsp.reg_notif.param.uid_counter = 0;
+
+    send_metamsg_rsp(pmeta_msg->rc_handle, pmeta_msg->label, AVRC_RSP_INTERIM, &avrc_rsp);
+    send_metamsg_rsp(pmeta_msg->rc_handle, pmeta_msg->label, AVRC_RSP_CHANGED, &avrc_rsp);
+
+}
+
+/***************************************************************************
+ *  Function       handle_rc_metamsg_cmd
+ *
+ *  - Argument:    tBTA_AV_VENDOR Structure containing the received
+ *                          metamsg command
+ *
+ *  - Description: Remote control metamsg command handler (AVRCP 1.3)
+ *
+ ***************************************************************************/
+void handle_rc_metamsg_cmd (tBTA_AV_META_MSG *pmeta_msg)
+{
+    /* Parse the metamsg command and pass it on to BTL-IFS */
+    UINT8             scratch_buf[512] = {0};
+    tAVRC_COMMAND    avrc_command = {0};
+    tAVRC_STS status;
+
+    BTIF_TRACE_EVENT("+ %s", __FUNCTION__);
+
+    if (pmeta_msg->p_msg->hdr.opcode != AVRC_OP_VENDOR)
+    {
+        BTIF_TRACE_WARNING("Invalid opcode: %x", pmeta_msg->p_msg->hdr.opcode);
+        return;
+    }
+    if (pmeta_msg->len < 3)
+    {
+        BTIF_TRACE_WARNING("Invalid length.Opcode: 0x%x, len: 0x%x", pmeta_msg->p_msg->hdr.opcode,
+            pmeta_msg->len);
+        return;
+    }
+
+    if (pmeta_msg->code >= AVRC_RSP_NOT_IMPL)
+    {
+#if (AVRC_ADV_CTRL_INCLUDED == TRUE)
+{
+     rc_transaction_t *transaction=NULL;
+     transaction=get_transaction_by_lbl(pmeta_msg->label);
+     if (NULL!=transaction)
+     {
+        handle_rc_metamsg_rsp(pmeta_msg);
+     }
+     else
+     {
+         BTIF_TRACE_DEBUG("%s:Discard vendor dependent rsp. code: %d label:%d.",
+             __FUNCTION__, pmeta_msg->code, pmeta_msg->label);
+     }
+     return;
+}
+#else
+{
+        BTIF_TRACE_DEBUG("%s:Received vendor dependent rsp. code: %d len: %d. Not processing it.",
+            __FUNCTION__, pmeta_msg->code, pmeta_msg->len);
+        return;
+}
+#endif
+      }
+
+    status=AVRC_ParsCommand(pmeta_msg->p_msg, &avrc_command, scratch_buf, sizeof(scratch_buf));
+    BTIF_TRACE_DEBUG("%s Received vendor command.code,PDU and label: %d, %d,%d",
+                     __FUNCTION__, pmeta_msg->code, avrc_command.cmd.pdu, pmeta_msg->label);
+
+    if (status != AVRC_STS_NO_ERROR)
+    {
+        /* return error */
+        BTIF_TRACE_WARNING("%s: Error in parsing received metamsg command. status: 0x%02x",
+            __FUNCTION__, status);
+        send_reject_response(pmeta_msg->rc_handle, pmeta_msg->label, avrc_command.pdu, status);
+    }
+    else
+    {
+        /* if RegisterNotification, add it to our registered queue */
+
+        if (avrc_command.cmd.pdu == AVRC_PDU_REGISTER_NOTIFICATION)
+        {
+            UINT8 event_id = avrc_command.reg_notif.event_id;
+            BTIF_TRACE_EVENT("%s:New register notification received.event_id:%s,label:0x%x,code:%x",
+            __FUNCTION__,dump_rc_notification_event_id(event_id), pmeta_msg->label,pmeta_msg->code);
+            btif_rc_cb.rc_notif[event_id-1].bNotify = TRUE;
+            btif_rc_cb.rc_notif[event_id-1].label = pmeta_msg->label;
+
+            if (event_id == AVRC_EVT_UIDS_CHANGE)
+            {
+                handle_uid_changed_notification(pmeta_msg, &avrc_command);
+                return;
+            }
+
+        }
+
+        BTIF_TRACE_EVENT("%s: Passing received metamsg command to app. pdu: %s",
+            __FUNCTION__, dump_rc_pdu(avrc_command.cmd.pdu));
+
+        /* Since handle_rc_metamsg_cmd() itself is called from
+            *btif context, no context switching is required. Invoke
+            * btif_rc_upstreams_evt directly from here. */
+        btif_rc_upstreams_evt((uint16_t)avrc_command.cmd.pdu, &avrc_command, pmeta_msg->code,
+                               pmeta_msg->label);
+    }
+}
+
+/***************************************************************************
+ **
+ ** Function       btif_rc_handler
+ **
+ ** Description    RC event handler
+ **
+ ***************************************************************************/
+void btif_rc_handler(tBTA_AV_EVT event, tBTA_AV *p_data)
+{
+    BTIF_TRACE_DEBUG ("%s event:%s", __FUNCTION__, dump_rc_event(event));
+    switch (event)
+    {
+        case BTA_AV_RC_OPEN_EVT:
+        {
+            BTIF_TRACE_DEBUG("%s Peer_features:%x", __FUNCTION__, p_data->rc_open.peer_features);
+            handle_rc_connect( &(p_data->rc_open) );
+        }break;
+
+        case BTA_AV_RC_CLOSE_EVT:
+        {
+            handle_rc_disconnect( &(p_data->rc_close) );
+        }break;
+
+        case BTA_AV_REMOTE_CMD_EVT:
+        {
+            if (bt_rc_callbacks != NULL)
+            {
+              BTIF_TRACE_DEBUG("%s rc_id:0x%x key_state:%d",
+                               __FUNCTION__, p_data->remote_cmd.rc_id,
+                               p_data->remote_cmd.key_state);
+                /** In race conditions just after 2nd AVRCP is connected
+                 *  remote might send pass through commands, so check for
+                 *  Rc handle before processing pass through commands
+                 **/
+                if (btif_rc_cb.rc_handle == p_data->remote_cmd.rc_handle)
+                {
+                    handle_rc_passthrough_cmd( (&p_data->remote_cmd) );
+                }
+                else
+                {
+                    BTIF_TRACE_DEBUG("%s Pass-through command for Invalid rc handle", __FUNCTION__);
+                }
+            }
+            else
+            {
+                BTIF_TRACE_ERROR("AVRCP TG role not up, drop passthrough commands");
+            }
+        }
+        break;
+
+#if (AVRC_CTLR_INCLUDED == TRUE)
+        case BTA_AV_REMOTE_RSP_EVT:
+        {
+            BTIF_TRACE_DEBUG("%s RSP: rc_id:0x%x key_state:%d",
+                             __FUNCTION__, p_data->remote_rsp.rc_id, p_data->remote_rsp.key_state);
+            if (p_data->remote_rsp.rc_id == AVRC_ID_VENDOR)
+            {
+                handle_rc_vendorunique_rsp(&p_data->remote_rsp);
+            }
+            else
+            {
+                handle_rc_passthrough_rsp(&p_data->remote_rsp);
+            }
+        }
+        break;
+
+#endif
+        case BTA_AV_RC_FEAT_EVT:
+        {
+            BTIF_TRACE_DEBUG("%s Peer_features:%x", __FUNCTION__, p_data->rc_feat.peer_features);
+            btif_rc_cb.rc_features = p_data->rc_feat.peer_features;
+            handle_rc_features(p_data->rc_feat.peer_addr);
+#if (AVRC_CTLR_INCLUDED == TRUE)
+            if ((btif_rc_cb.rc_connected) && (bt_rc_ctrl_callbacks != NULL))
+            {
+                handle_rc_ctrl_features(btif_rc_cb.rc_addr);
+            }
+#endif
+        }
+        break;
+
+        case BTA_AV_META_MSG_EVT:
+        {
+            if (bt_rc_callbacks != NULL)
+            {
+                BTIF_TRACE_DEBUG("%s BTA_AV_META_MSG_EVT  code:%d label:%d",
+                                 __FUNCTION__,
+                                 p_data->meta_msg.code,
+                                 p_data->meta_msg.label);
+                BTIF_TRACE_DEBUG("%s company_id:0x%x len:%d handle:%d",
+                                 __FUNCTION__,
+                                 p_data->meta_msg.company_id,
+                                 p_data->meta_msg.len,
+                                 p_data->meta_msg.rc_handle);
+                /* handle the metamsg command */
+                handle_rc_metamsg_cmd(&(p_data->meta_msg));
+                /* Free the Memory allocated for tAVRC_MSG */
+            }
+#if (AVRC_CTLR_INCLUDED == TRUE)
+            else if ((bt_rc_callbacks == NULL)&&(bt_rc_ctrl_callbacks != NULL))
+            {
+                /* This is case of Sink + CT + TG(for abs vol)) */
+                BTIF_TRACE_DEBUG("%s BTA_AV_META_MSG_EVT  code:%d label:%d",
+                                 __FUNCTION__,
+                                 p_data->meta_msg.code,
+                                 p_data->meta_msg.label);
+                BTIF_TRACE_DEBUG("%s company_id:0x%x len:%d handle:%d",
+                                 __FUNCTION__,
+                                 p_data->meta_msg.company_id,
+                                 p_data->meta_msg.len,
+                                 p_data->meta_msg.rc_handle);
+                if ((p_data->meta_msg.code >= AVRC_RSP_NOT_IMPL)&&
+                    (p_data->meta_msg.code <= AVRC_RSP_INTERIM))
+                {
+                    /* Its a response */
+                    handle_avk_rc_metamsg_rsp(&(p_data->meta_msg));
+                }
+                else if (p_data->meta_msg.code <= AVRC_CMD_GEN_INQ)
+                {
+                    /* Its a command  */
+                    handle_avk_rc_metamsg_cmd(&(p_data->meta_msg));
+                }
+
+            }
+#endif
+            else
+            {
+                BTIF_TRACE_ERROR("Neither CTRL, nor TG is up, drop meta commands");
+            }
+        }
+        break;
+
+        default:
+            BTIF_TRACE_DEBUG("%s Unhandled RC event : 0x%x", __FUNCTION__, event);
+    }
+}
+
+/***************************************************************************
+ **
+ ** Function       btif_rc_get_connected_peer
+ **
+ ** Description    Fetches the connected headset's BD_ADDR if any
+ **
+ ***************************************************************************/
+BOOLEAN btif_rc_get_connected_peer(BD_ADDR peer_addr)
+{
+    if (btif_rc_cb.rc_connected == TRUE) {
+        bdcpy(peer_addr, btif_rc_cb.rc_addr);
+        return TRUE;
+    }
+    return FALSE;
+}
+
+/***************************************************************************
+ **
+ ** Function       btif_rc_get_connected_peer_handle
+ **
+ ** Description    Fetches the connected headset's handle if any
+ **
+ ***************************************************************************/
+UINT8 btif_rc_get_connected_peer_handle(void)
+{
+    return btif_rc_cb.rc_handle;
+}
+
+/***************************************************************************
+ **
+ ** Function       btif_rc_check_handle_pending_play
+ **
+ ** Description    Clears the queued PLAY command. if bSend is TRUE, forwards to app
+ **
+ ***************************************************************************/
+
+/* clear the queued PLAY command. if bSend is TRUE, forward to app */
+void btif_rc_check_handle_pending_play (BD_ADDR peer_addr, BOOLEAN bSendToApp)
+{
+    UNUSED(peer_addr);
+
+    BTIF_TRACE_DEBUG("%s: bSendToApp=%d", __FUNCTION__, bSendToApp);
+    if (btif_rc_cb.rc_pending_play)
+    {
+        if (bSendToApp)
+        {
+            tBTA_AV_REMOTE_CMD remote_cmd;
+            APPL_TRACE_DEBUG("%s: Sending queued PLAYED event to app", __FUNCTION__);
+
+            memset (&remote_cmd, 0, sizeof(tBTA_AV_REMOTE_CMD));
+            remote_cmd.rc_handle  = btif_rc_cb.rc_handle;
+            remote_cmd.rc_id      = AVRC_ID_PLAY;
+            remote_cmd.hdr.ctype  = AVRC_CMD_CTRL;
+            remote_cmd.hdr.opcode = AVRC_OP_PASS_THRU;
+
+            /* delay sending to app, else there is a timing issue in the framework,
+             ** which causes the audio to be on th device's speaker. Delay between
+             ** OPEN & RC_PLAYs
+            */
+            sleep_ms(200);
+            /* send to app - both PRESSED & RELEASED */
+            remote_cmd.key_state  = AVRC_STATE_PRESS;
+            handle_rc_passthrough_cmd( &remote_cmd );
+
+            sleep_ms(100);
+
+            remote_cmd.key_state  = AVRC_STATE_RELEASE;
+            handle_rc_passthrough_cmd( &remote_cmd );
+        }
+        btif_rc_cb.rc_pending_play = FALSE;
+    }
+}
+
+/* Generic reject response */
+static void send_reject_response (UINT8 rc_handle, UINT8 label, UINT8 pdu, UINT8 status)
+{
+    UINT8 ctype = AVRC_RSP_REJ;
+    tAVRC_RESPONSE avrc_rsp;
+    BT_HDR *p_msg = NULL;
+    memset (&avrc_rsp, 0, sizeof(tAVRC_RESPONSE));
+
+    avrc_rsp.rsp.opcode = opcode_from_pdu(pdu);
+    avrc_rsp.rsp.pdu    = pdu;
+    avrc_rsp.rsp.status = status;
+
+    if (AVRC_STS_NO_ERROR == (status = AVRC_BldResponse(rc_handle, &avrc_rsp, &p_msg)) )
+    {
+        BTIF_TRACE_DEBUG("%s:Sending error notification to handle:%d. pdu:%s,status:0x%02x",
+            __FUNCTION__, rc_handle, dump_rc_pdu(pdu), status);
+        BTA_AvMetaRsp(rc_handle, label, ctype, p_msg);
+    }
+}
+
+/***************************************************************************
+ *  Function       send_metamsg_rsp
+ *
+ *  - Argument:
+ *                  rc_handle     RC handle corresponding to the connected RC
+ *                  label            Label of the RC response
+ *                  code            Response type
+ *                  pmetamsg_resp    Vendor response
+ *
+ *  - Description: Remote control metamsg response handler (AVRCP 1.3)
+ *
+ ***************************************************************************/
+static void send_metamsg_rsp (UINT8 rc_handle, UINT8 label, tBTA_AV_CODE code,
+    tAVRC_RESPONSE *pmetamsg_resp)
+{
+    UINT8 ctype;
+
+    if (!pmetamsg_resp)
+    {
+        BTIF_TRACE_WARNING("%s: Invalid response received from application", __FUNCTION__);
+        return;
+    }
+
+    BTIF_TRACE_EVENT("+%s: rc_handle: %d, label: %d, code: 0x%02x, pdu: %s", __FUNCTION__,
+        rc_handle, label, code, dump_rc_pdu(pmetamsg_resp->rsp.pdu));
+
+    if (pmetamsg_resp->rsp.status != AVRC_STS_NO_ERROR)
+    {
+        ctype = AVRC_RSP_REJ;
+    }
+    else
+    {
+        if ( code < AVRC_RSP_NOT_IMPL)
+        {
+            if (code == AVRC_CMD_NOTIF)
+            {
+               ctype = AVRC_RSP_INTERIM;
+            }
+            else if (code == AVRC_CMD_STATUS)
+            {
+               ctype = AVRC_RSP_IMPL_STBL;
+            }
+            else
+            {
+               ctype = AVRC_RSP_ACCEPT;
+            }
+        }
+        else
+        {
+            ctype = code;
+        }
+    }
+    /* if response is for register_notification, make sure the rc has
+    actually registered for this */
+    if ((pmetamsg_resp->rsp.pdu == AVRC_PDU_REGISTER_NOTIFICATION) && (code == AVRC_RSP_CHANGED))
+    {
+        BOOLEAN bSent = FALSE;
+        UINT8   event_id = pmetamsg_resp->reg_notif.event_id;
+        BOOLEAN bNotify = (btif_rc_cb.rc_connected) && (btif_rc_cb.rc_notif[event_id-1].bNotify);
+
+        /* de-register this notification for a CHANGED response */
+        btif_rc_cb.rc_notif[event_id-1].bNotify = FALSE;
+        BTIF_TRACE_DEBUG("%s rc_handle: %d. event_id: 0x%02d bNotify:%u", __FUNCTION__,
+             btif_rc_cb.rc_handle, event_id, bNotify);
+        if (bNotify)
+        {
+            BT_HDR *p_msg = NULL;
+            tAVRC_STS status;
+
+            if (AVRC_STS_NO_ERROR == (status = AVRC_BldResponse(btif_rc_cb.rc_handle,
+                pmetamsg_resp, &p_msg)) )
+            {
+                BTIF_TRACE_DEBUG("%s Sending notification to rc_handle: %d. event_id: 0x%02d",
+                     __FUNCTION__, btif_rc_cb.rc_handle, event_id);
+                bSent = TRUE;
+                BTA_AvMetaRsp(btif_rc_cb.rc_handle, btif_rc_cb.rc_notif[event_id-1].label,
+                    ctype, p_msg);
+            }
+            else
+            {
+                BTIF_TRACE_WARNING("%s failed to build metamsg response. status: 0x%02x",
+                    __FUNCTION__, status);
+            }
+
+        }
+
+        if (!bSent)
+        {
+            BTIF_TRACE_DEBUG("%s: Notification not sent, as there are no RC connections or the \
+                CT has not subscribed for event_id: %s", __FUNCTION__, dump_rc_notification_event_id(event_id));
+        }
+    }
+    else
+    {
+        /* All other commands go here */
+
+        BT_HDR *p_msg = NULL;
+        tAVRC_STS status;
+
+        status = AVRC_BldResponse(rc_handle, pmetamsg_resp, &p_msg);
+
+        if (status == AVRC_STS_NO_ERROR)
+        {
+            BTA_AvMetaRsp(rc_handle, label, ctype, p_msg);
+        }
+        else
+        {
+            BTIF_TRACE_ERROR("%s: failed to build metamsg response. status: 0x%02x",
+                __FUNCTION__, status);
+        }
+    }
+}
+
+static UINT8 opcode_from_pdu(UINT8 pdu)
+{
+    UINT8 opcode = 0;
+
+    switch (pdu)
+    {
+    case AVRC_PDU_NEXT_GROUP:
+    case AVRC_PDU_PREV_GROUP: /* pass thru */
+        opcode  = AVRC_OP_PASS_THRU;
+        break;
+
+    default: /* vendor */
+        opcode  = AVRC_OP_VENDOR;
+        break;
+    }
+
+    return opcode;
+}
+
+/*******************************************************************************
+**
+** Function         btif_rc_upstreams_evt
+**
+** Description      Executes AVRC UPSTREAMS events in btif context.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btif_rc_upstreams_evt(UINT16 event, tAVRC_COMMAND *pavrc_cmd, UINT8 ctype, UINT8 label)
+{
+    BTIF_TRACE_EVENT("%s pdu: %s handle: 0x%x ctype:%x label:%x", __FUNCTION__,
+        dump_rc_pdu(pavrc_cmd->pdu), btif_rc_cb.rc_handle, ctype, label);
+
+    switch (event)
+    {
+        case AVRC_PDU_GET_PLAY_STATUS:
+        {
+            FILL_PDU_QUEUE(IDX_GET_PLAY_STATUS_RSP, ctype, label, TRUE)
+            HAL_CBACK(bt_rc_callbacks, get_play_status_cb);
+        }
+        break;
+        case AVRC_PDU_LIST_PLAYER_APP_ATTR:
+        case AVRC_PDU_LIST_PLAYER_APP_VALUES:
+        case AVRC_PDU_GET_CUR_PLAYER_APP_VALUE:
+        case AVRC_PDU_SET_PLAYER_APP_VALUE:
+        case AVRC_PDU_GET_PLAYER_APP_ATTR_TEXT:
+        case AVRC_PDU_GET_PLAYER_APP_VALUE_TEXT:
+        {
+            /* TODO: Add support for Application Settings */
+            send_reject_response (btif_rc_cb.rc_handle, label, pavrc_cmd->pdu, AVRC_STS_BAD_CMD);
+        }
+        break;
+        case AVRC_PDU_GET_ELEMENT_ATTR:
+        {
+            btrc_media_attr_t element_attrs[BTRC_MAX_ELEM_ATTR_SIZE];
+            UINT8 num_attr;
+             memset(&element_attrs, 0, sizeof(element_attrs));
+            if (pavrc_cmd->get_elem_attrs.num_attr == 0)
+            {
+                /* CT requests for all attributes */
+                int attr_cnt;
+                num_attr = BTRC_MAX_ELEM_ATTR_SIZE;
+                for (attr_cnt = 0; attr_cnt < BTRC_MAX_ELEM_ATTR_SIZE; attr_cnt++)
+                {
+                    element_attrs[attr_cnt] = attr_cnt + 1;
+                }
+            }
+            else if (pavrc_cmd->get_elem_attrs.num_attr == 0xFF)
+            {
+                /* 0xff indicates, no attributes requested - reject */
+                send_reject_response (btif_rc_cb.rc_handle, label, pavrc_cmd->pdu,
+                    AVRC_STS_BAD_PARAM);
+                return;
+            }
+            else
+            {
+                int attr_cnt, filled_attr_count;
+
+                num_attr = 0;
+                /* Attribute IDs from 1 to AVRC_MAX_NUM_MEDIA_ATTR_ID are only valid,
+                 * hence HAL definition limits the attributes to AVRC_MAX_NUM_MEDIA_ATTR_ID.
+                 * Fill only valid entries.
+                 */
+                for (attr_cnt = 0; (attr_cnt < pavrc_cmd->get_elem_attrs.num_attr) &&
+                    (num_attr < AVRC_MAX_NUM_MEDIA_ATTR_ID); attr_cnt++)
+                {
+                    if ((pavrc_cmd->get_elem_attrs.attrs[attr_cnt] > 0) &&
+                        (pavrc_cmd->get_elem_attrs.attrs[attr_cnt] <= AVRC_MAX_NUM_MEDIA_ATTR_ID))
+                    {
+                        /* Skip the duplicate entries : PTS sends duplicate entries for Fragment cases
+                         */
+                        for (filled_attr_count = 0; filled_attr_count < num_attr; filled_attr_count++)
+                        {
+                            if (element_attrs[filled_attr_count] == pavrc_cmd->get_elem_attrs.attrs[attr_cnt])
+                                break;
+                        }
+                        if (filled_attr_count == num_attr)
+                        {
+                            element_attrs[num_attr] = pavrc_cmd->get_elem_attrs.attrs[attr_cnt];
+                            num_attr++;
+                        }
+                    }
+                }
+            }
+            FILL_PDU_QUEUE(IDX_GET_ELEMENT_ATTR_RSP, ctype, label, TRUE);
+            HAL_CBACK(bt_rc_callbacks, get_element_attr_cb, num_attr, element_attrs);
+        }
+        break;
+        case AVRC_PDU_REGISTER_NOTIFICATION:
+        {
+            if (pavrc_cmd->reg_notif.event_id == BTRC_EVT_PLAY_POS_CHANGED &&
+                pavrc_cmd->reg_notif.param == 0)
+            {
+                BTIF_TRACE_WARNING("%s Device registering position changed with illegal param 0.",
+                    __FUNCTION__);
+                send_reject_response (btif_rc_cb.rc_handle, label, pavrc_cmd->pdu, AVRC_STS_BAD_PARAM);
+                /* de-register this notification for a rejected response */
+                btif_rc_cb.rc_notif[BTRC_EVT_PLAY_POS_CHANGED - 1].bNotify = FALSE;
+                return;
+            }
+            HAL_CBACK(bt_rc_callbacks, register_notification_cb, pavrc_cmd->reg_notif.event_id,
+                pavrc_cmd->reg_notif.param);
+        }
+        break;
+        case AVRC_PDU_INFORM_DISPLAY_CHARSET:
+        {
+            tAVRC_RESPONSE avrc_rsp;
+            BTIF_TRACE_EVENT("%s() AVRC_PDU_INFORM_DISPLAY_CHARSET", __FUNCTION__);
+            if (btif_rc_cb.rc_connected == TRUE)
+            {
+                memset(&(avrc_rsp.inform_charset), 0, sizeof(tAVRC_RSP));
+                avrc_rsp.inform_charset.opcode=opcode_from_pdu(AVRC_PDU_INFORM_DISPLAY_CHARSET);
+                avrc_rsp.inform_charset.pdu=AVRC_PDU_INFORM_DISPLAY_CHARSET;
+                avrc_rsp.inform_charset.status=AVRC_STS_NO_ERROR;
+                send_metamsg_rsp(btif_rc_cb.rc_handle, label, ctype, &avrc_rsp);
+            }
+        }
+        break;
+        default:
+        {
+        send_reject_response (btif_rc_cb.rc_handle, label, pavrc_cmd->pdu,
+            (pavrc_cmd->pdu == AVRC_PDU_SEARCH)?AVRC_STS_SEARCH_NOT_SUP:AVRC_STS_BAD_CMD);
+        return;
+        }
+        break;
+    }
+}
+
+#if (AVRC_CTLR_INCLUDED == TRUE)
+/*******************************************************************************
+**
+** Function         btif_rc_ctrl_upstreams_rsp_cmd
+**
+** Description      Executes AVRC UPSTREAMS response events in btif context.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btif_rc_ctrl_upstreams_rsp_cmd(UINT8 event, tAVRC_COMMAND *pavrc_cmd,
+        UINT8 label)
+{
+    BTIF_TRACE_DEBUG("%s pdu: %s handle: 0x%x", __FUNCTION__,
+        dump_rc_pdu(pavrc_cmd->pdu), btif_rc_cb.rc_handle);
+    bt_bdaddr_t rc_addr;
+    bdcpy(rc_addr.address, btif_rc_cb.rc_addr);
+#if (AVRC_CTLR_INCLUDED == TRUE)
+    switch (event)
+    {
+    case AVRC_PDU_SET_ABSOLUTE_VOLUME:
+         HAL_CBACK(bt_rc_ctrl_callbacks,setabsvol_cmd_cb, &rc_addr,
+                 pavrc_cmd->volume.volume, label);
+         break;
+    case AVRC_PDU_REGISTER_NOTIFICATION:
+         if (pavrc_cmd->reg_notif.event_id == AVRC_EVT_VOLUME_CHANGE)
+         {
+             HAL_CBACK(bt_rc_ctrl_callbacks, registernotification_absvol_cb,
+                    &rc_addr, label);
+         }
+         break;
+    }
+#endif
+}
+#endif
+
+#if (AVRC_ADV_CTRL_INCLUDED == TRUE)
+/*******************************************************************************
+**
+** Function         btif_rc_upstreams_rsp_evt
+**
+** Description      Executes AVRC UPSTREAMS response events in btif context.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btif_rc_upstreams_rsp_evt(UINT16 event, tAVRC_RESPONSE *pavrc_resp, UINT8 ctype, UINT8 label)
+{
+    BTIF_TRACE_EVENT("%s pdu: %s handle: 0x%x ctype:%x label:%x", __FUNCTION__,
+        dump_rc_pdu(pavrc_resp->pdu), btif_rc_cb.rc_handle, ctype, label);
+
+    switch (event)
+    {
+        case AVRC_PDU_REGISTER_NOTIFICATION:
+        {
+             if (AVRC_RSP_CHANGED==ctype)
+                 btif_rc_cb.rc_volume=pavrc_resp->reg_notif.param.volume;
+             HAL_CBACK(bt_rc_callbacks, volume_change_cb, pavrc_resp->reg_notif.param.volume,ctype)
+        }
+        break;
+
+        case AVRC_PDU_SET_ABSOLUTE_VOLUME:
+        {
+            BTIF_TRACE_DEBUG("%s Set absolute volume change event received: volume %d,ctype %d",
+                             __FUNCTION__, pavrc_resp->volume.volume,ctype);
+            if (AVRC_RSP_ACCEPT==ctype)
+                btif_rc_cb.rc_volume=pavrc_resp->volume.volume;
+            HAL_CBACK(bt_rc_callbacks,volume_change_cb,pavrc_resp->volume.volume,ctype)
+        }
+        break;
+
+        default:
+            return;
+    }
+}
+#endif
+
+/************************************************************************************
+**  AVRCP API Functions
+************************************************************************************/
+
+/*******************************************************************************
+**
+** Function         init
+**
+** Description      Initializes the AVRC interface
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+static bt_status_t init(btrc_callbacks_t* callbacks )
+{
+    BTIF_TRACE_EVENT("## %s ##", __FUNCTION__);
+    bt_status_t result = BT_STATUS_SUCCESS;
+
+    if (bt_rc_callbacks)
+        return BT_STATUS_DONE;
+
+    bt_rc_callbacks = callbacks;
+    memset (&btif_rc_cb, 0, sizeof(btif_rc_cb));
+    btif_rc_cb.rc_vol_label=MAX_LABEL;
+    btif_rc_cb.rc_volume=MAX_VOLUME;
+    lbl_init();
+
+    return result;
+}
+
+/*******************************************************************************
+**
+** Function         init_ctrl
+**
+** Description      Initializes the AVRC interface
+**
+** Returns          bt_status_t
+**
+*******************************************************************************/
+static bt_status_t init_ctrl(btrc_ctrl_callbacks_t* callbacks )
+{
+    BTIF_TRACE_EVENT("## %s ##", __FUNCTION__);
+    bt_status_t result = BT_STATUS_SUCCESS;
+
+    if (bt_rc_ctrl_callbacks)
+        return BT_STATUS_DONE;
+
+    bt_rc_ctrl_callbacks = callbacks;
+    memset (&btif_rc_cb, 0, sizeof(btif_rc_cb));
+    btif_rc_cb.rc_vol_label=MAX_LABEL;
+    btif_rc_cb.rc_volume=MAX_VOLUME;
+    lbl_init();
+
+    return result;
+}
+
+static void rc_ctrl_procedure_complete ()
+{
+    if (btif_rc_cb.rc_procedure_complete == TRUE)
+    {
+        return;
+    }
+    btif_rc_cb.rc_procedure_complete = TRUE;
+    UINT32 attr_list[] = {
+            AVRC_MEDIA_ATTR_ID_TITLE,
+            AVRC_MEDIA_ATTR_ID_ARTIST,
+            AVRC_MEDIA_ATTR_ID_ALBUM,
+            AVRC_MEDIA_ATTR_ID_TRACK_NUM,
+            AVRC_MEDIA_ATTR_ID_NUM_TRACKS,
+            AVRC_MEDIA_ATTR_ID_GENRE,
+            AVRC_MEDIA_ATTR_ID_PLAYING_TIME
+            };
+    get_element_attribute_cmd (AVRC_MAX_NUM_MEDIA_ATTR_ID, attr_list);
+}
+
+/***************************************************************************
+**
+** Function         get_play_status_rsp
+**
+** Description      Returns the current play status.
+**                      This method is called in response to
+**                      GetPlayStatus request.
+**
+** Returns          bt_status_t
+**
+***************************************************************************/
+static bt_status_t get_play_status_rsp(btrc_play_status_t play_status, uint32_t song_len,
+    uint32_t song_pos)
+{
+    tAVRC_RESPONSE avrc_rsp;
+    CHECK_RC_CONNECTED
+    memset(&(avrc_rsp.get_play_status), 0, sizeof(tAVRC_GET_PLAY_STATUS_RSP));
+    avrc_rsp.get_play_status.song_len = song_len;
+    avrc_rsp.get_play_status.song_pos = song_pos;
+    avrc_rsp.get_play_status.play_status = play_status;
+
+    avrc_rsp.get_play_status.pdu = AVRC_PDU_GET_PLAY_STATUS;
+    avrc_rsp.get_play_status.opcode = opcode_from_pdu(AVRC_PDU_GET_PLAY_STATUS);
+    avrc_rsp.get_play_status.status = AVRC_STS_NO_ERROR;
+    /* Send the response */
+    SEND_METAMSG_RSP(IDX_GET_PLAY_STATUS_RSP, &avrc_rsp);
+    return BT_STATUS_SUCCESS;
+}
+
+/***************************************************************************
+**
+** Function         get_element_attr_rsp
+**
+** Description      Returns the current songs' element attributes
+**                      in text.
+**
+** Returns          bt_status_t
+**
+***************************************************************************/
+static bt_status_t get_element_attr_rsp(uint8_t num_attr, btrc_element_attr_val_t *p_attrs)
+{
+    tAVRC_RESPONSE avrc_rsp;
+    UINT32 i;
+    tAVRC_ATTR_ENTRY element_attrs[BTRC_MAX_ELEM_ATTR_SIZE];
+    CHECK_RC_CONNECTED
+    memset(element_attrs, 0, sizeof(tAVRC_ATTR_ENTRY) * num_attr);
+
+    if (num_attr == 0)
+    {
+        avrc_rsp.get_play_status.status = AVRC_STS_BAD_PARAM;
+    }
+    else
+    {
+        for (i=0; i<num_attr; i++) {
+            element_attrs[i].attr_id = p_attrs[i].attr_id;
+            element_attrs[i].name.charset_id = AVRC_CHARSET_ID_UTF8;
+            element_attrs[i].name.str_len = (UINT16)strlen((char *)p_attrs[i].text);
+            element_attrs[i].name.p_str = p_attrs[i].text;
+            BTIF_TRACE_DEBUG("%s attr_id:0x%x, charset_id:0x%x, str_len:%d, str:%s",
+                             __FUNCTION__, (unsigned int)element_attrs[i].attr_id,
+                             element_attrs[i].name.charset_id, element_attrs[i].name.str_len,
+                             element_attrs[i].name.p_str);
+        }
+        avrc_rsp.get_play_status.status = AVRC_STS_NO_ERROR;
+    }
+    avrc_rsp.get_elem_attrs.num_attr = num_attr;
+    avrc_rsp.get_elem_attrs.p_attrs = element_attrs;
+    avrc_rsp.get_elem_attrs.pdu = AVRC_PDU_GET_ELEMENT_ATTR;
+    avrc_rsp.get_elem_attrs.opcode = opcode_from_pdu(AVRC_PDU_GET_ELEMENT_ATTR);
+    /* Send the response */
+    SEND_METAMSG_RSP(IDX_GET_ELEMENT_ATTR_RSP, &avrc_rsp);
+    return BT_STATUS_SUCCESS;
+}
+
+/***************************************************************************
+**
+** Function         register_notification_rsp
+**
+** Description      Response to the register notification request.
+**                      in text.
+**
+** Returns          bt_status_t
+**
+***************************************************************************/
+static bt_status_t register_notification_rsp(btrc_event_id_t event_id,
+    btrc_notification_type_t type, btrc_register_notification_t *p_param)
+{
+    tAVRC_RESPONSE avrc_rsp;
+    CHECK_RC_CONNECTED
+    BTIF_TRACE_EVENT("## %s ## event_id:%s", __FUNCTION__, dump_rc_notification_event_id(event_id));
+    if (btif_rc_cb.rc_notif[event_id-1].bNotify == FALSE)
+    {
+        BTIF_TRACE_ERROR("Avrcp Event id not registered: event_id = %x", event_id);
+        return BT_STATUS_NOT_READY;
+    }
+    memset(&(avrc_rsp.reg_notif), 0, sizeof(tAVRC_REG_NOTIF_RSP));
+    avrc_rsp.reg_notif.event_id = event_id;
+
+    switch(event_id)
+    {
+        case BTRC_EVT_PLAY_STATUS_CHANGED:
+            avrc_rsp.reg_notif.param.play_status = p_param->play_status;
+            if (avrc_rsp.reg_notif.param.play_status == PLAY_STATUS_PLAYING)
+                btif_av_clear_remote_suspend_flag();
+            break;
+        case BTRC_EVT_TRACK_CHANGE:
+            memcpy(&(avrc_rsp.reg_notif.param.track), &(p_param->track), sizeof(btrc_uid_t));
+            break;
+        case BTRC_EVT_PLAY_POS_CHANGED:
+            avrc_rsp.reg_notif.param.play_pos = p_param->song_pos;
+            break;
+        default:
+            BTIF_TRACE_WARNING("%s : Unhandled event ID : 0x%x", __FUNCTION__, event_id);
+            return BT_STATUS_UNHANDLED;
+    }
+
+    avrc_rsp.reg_notif.pdu = AVRC_PDU_REGISTER_NOTIFICATION;
+    avrc_rsp.reg_notif.opcode = opcode_from_pdu(AVRC_PDU_REGISTER_NOTIFICATION);
+    avrc_rsp.get_play_status.status = AVRC_STS_NO_ERROR;
+
+    /* Send the response. */
+    send_metamsg_rsp(btif_rc_cb.rc_handle, btif_rc_cb.rc_notif[event_id-1].label,
+        ((type == BTRC_NOTIFICATION_TYPE_INTERIM)?AVRC_CMD_NOTIF:AVRC_RSP_CHANGED), &avrc_rsp);
+    return BT_STATUS_SUCCESS;
+}
+
+/***************************************************************************
+**
+** Function         set_volume
+**
+** Description      Send current volume setting to remote side.
+**                  Support limited to SetAbsoluteVolume
+**                  This can be enhanced to support Relative Volume (AVRCP 1.0).
+**                  With RelateVolume, we will send VOLUME_UP/VOLUME_DOWN
+**                  as opposed to absolute volume level
+** volume: Should be in the range 0-127. bit7 is reseved and cannot be set
+**
+** Returns          bt_status_t
+**
+***************************************************************************/
+static bt_status_t set_volume(uint8_t volume)
+{
+    BTIF_TRACE_DEBUG("%s", __FUNCTION__);
+    CHECK_RC_CONNECTED
+    tAVRC_STS status = BT_STATUS_UNSUPPORTED;
+    rc_transaction_t *p_transaction=NULL;
+
+    if (btif_rc_cb.rc_volume==volume)
+    {
+        status=BT_STATUS_DONE;
+        BTIF_TRACE_ERROR("%s: volume value already set earlier: 0x%02x",__FUNCTION__, volume);
+        return status;
+    }
+
+    if ((btif_rc_cb.rc_features & BTA_AV_FEAT_RCTG) &&
+        (btif_rc_cb.rc_features & BTA_AV_FEAT_ADV_CTRL))
+    {
+        tAVRC_COMMAND avrc_cmd = {0};
+        BT_HDR *p_msg = NULL;
+
+        BTIF_TRACE_DEBUG("%s: Peer supports absolute volume. newVolume=%d", __FUNCTION__, volume);
+        avrc_cmd.volume.opcode = AVRC_OP_VENDOR;
+        avrc_cmd.volume.pdu = AVRC_PDU_SET_ABSOLUTE_VOLUME;
+        avrc_cmd.volume.status = AVRC_STS_NO_ERROR;
+        avrc_cmd.volume.volume = volume;
+
+        if (AVRC_BldCommand(&avrc_cmd, &p_msg) == AVRC_STS_NO_ERROR)
+        {
+            bt_status_t tran_status=get_transaction(&p_transaction);
+            if (BT_STATUS_SUCCESS == tran_status && NULL!=p_transaction)
+            {
+                BTIF_TRACE_DEBUG("%s msgreq being sent out with label %d",
+                                   __FUNCTION__,p_transaction->lbl);
+                BTA_AvMetaCmd(btif_rc_cb.rc_handle,p_transaction->lbl, AVRC_CMD_CTRL, p_msg);
+                status =  BT_STATUS_SUCCESS;
+            }
+            else
+            {
+                osi_free(p_msg);
+                BTIF_TRACE_ERROR("%s: failed to obtain transaction details. status: 0x%02x",
+                                    __FUNCTION__, tran_status);
+                status = BT_STATUS_FAIL;
+            }
+        }
+        else
+        {
+            BTIF_TRACE_ERROR("%s: failed to build absolute volume command. status: 0x%02x",
+                                __FUNCTION__, status);
+            status = BT_STATUS_FAIL;
+        }
+    }
+    else
+        status=BT_STATUS_NOT_READY;
+    return status;
+}
+
+#if (AVRC_ADV_CTRL_INCLUDED == TRUE)
+/***************************************************************************
+**
+** Function         register_volumechange
+**
+** Description     Register for volume change notification from remote side.
+**
+** Returns          void
+**
+***************************************************************************/
+
+static void register_volumechange (UINT8 lbl)
+{
+    tAVRC_COMMAND avrc_cmd = {0};
+    BT_HDR *p_msg = NULL;
+    tAVRC_STS BldResp=AVRC_STS_BAD_CMD;
+    rc_transaction_t *p_transaction=NULL;
+
+    BTIF_TRACE_DEBUG("%s called with label:%d",__FUNCTION__,lbl);
+
+    avrc_cmd.cmd.opcode=0x00;
+    avrc_cmd.pdu = AVRC_PDU_REGISTER_NOTIFICATION;
+    avrc_cmd.reg_notif.event_id = AVRC_EVT_VOLUME_CHANGE;
+    avrc_cmd.reg_notif.status = AVRC_STS_NO_ERROR;
+    avrc_cmd.reg_notif.param = 0;
+
+    BldResp=AVRC_BldCommand(&avrc_cmd, &p_msg);
+    if (AVRC_STS_NO_ERROR == BldResp && p_msg) {
+        p_transaction = get_transaction_by_lbl(lbl);
+        if (p_transaction != NULL) {
+            BTA_AvMetaCmd(btif_rc_cb.rc_handle, p_transaction->lbl,
+                          AVRC_CMD_NOTIF, p_msg);
+            BTIF_TRACE_DEBUG("%s:BTA_AvMetaCmd called", __func__);
+         } else {
+            osi_free(p_msg);
+            BTIF_TRACE_ERROR("%s transaction not obtained with label: %d",
+                             __func__, lbl);
+         }
+    } else {
+        BTIF_TRACE_ERROR("%s failed to build command:%d", __func__, BldResp);
+    }
+}
+
+/***************************************************************************
+**
+** Function         handle_rc_metamsg_rsp
+**
+** Description      Handle RC metamessage response
+**
+** Returns          void
+**
+***************************************************************************/
+static void handle_rc_metamsg_rsp(tBTA_AV_META_MSG *pmeta_msg)
+{
+    tAVRC_RESPONSE    avrc_response = {0};
+    UINT8             scratch_buf[512] = {0};
+    tAVRC_STS status = BT_STATUS_UNSUPPORTED;
+
+    if (AVRC_OP_VENDOR==pmeta_msg->p_msg->hdr.opcode &&(AVRC_RSP_CHANGED==pmeta_msg->code
+      || AVRC_RSP_INTERIM==pmeta_msg->code || AVRC_RSP_ACCEPT==pmeta_msg->code
+      || AVRC_RSP_REJ==pmeta_msg->code || AVRC_RSP_NOT_IMPL==pmeta_msg->code))
+    {
+        status=AVRC_ParsResponse(pmeta_msg->p_msg, &avrc_response, scratch_buf, sizeof(scratch_buf));
+        BTIF_TRACE_DEBUG("%s: code %d,event ID %d,PDU %x,parsing status %d, label:%d",
+          __FUNCTION__,pmeta_msg->code,avrc_response.reg_notif.event_id,avrc_response.reg_notif.pdu,
+          status, pmeta_msg->label);
+
+        if (status != AVRC_STS_NO_ERROR)
+        {
+            if (AVRC_PDU_REGISTER_NOTIFICATION==avrc_response.rsp.pdu
+                && AVRC_EVT_VOLUME_CHANGE==avrc_response.reg_notif.event_id
+                && btif_rc_cb.rc_vol_label==pmeta_msg->label)
+            {
+                btif_rc_cb.rc_vol_label=MAX_LABEL;
+                release_transaction(btif_rc_cb.rc_vol_label);
+            }
+            else if (AVRC_PDU_SET_ABSOLUTE_VOLUME==avrc_response.rsp.pdu)
+            {
+                release_transaction(pmeta_msg->label);
+            }
+            return;
+        }
+        else if (AVRC_PDU_REGISTER_NOTIFICATION==avrc_response.rsp.pdu
+            && AVRC_EVT_VOLUME_CHANGE==avrc_response.reg_notif.event_id
+            && btif_rc_cb.rc_vol_label!=pmeta_msg->label)
+            {
+                // Just discard the message, if the device sends back with an incorrect label
+                BTIF_TRACE_DEBUG("%s:Discarding register notfn in rsp.code: %d and label %d",
+                __FUNCTION__, pmeta_msg->code, pmeta_msg->label);
+                return;
+            }
+    }
+    else
+    {
+        BTIF_TRACE_DEBUG("%s:Received vendor dependent in adv ctrl rsp. code: %d len: %d. Not processing it.",
+        __FUNCTION__, pmeta_msg->code, pmeta_msg->len);
+        return;
+    }
+
+    if (AVRC_PDU_REGISTER_NOTIFICATION==avrc_response.rsp.pdu
+        && AVRC_EVT_VOLUME_CHANGE==avrc_response.reg_notif.event_id
+        && AVRC_RSP_CHANGED==pmeta_msg->code)
+     {
+         /* re-register for volume change notification */
+         // Do not re-register for rejected case, as it might get into endless loop
+         register_volumechange(btif_rc_cb.rc_vol_label);
+     }
+     else if (AVRC_PDU_SET_ABSOLUTE_VOLUME==avrc_response.rsp.pdu)
+     {
+          /* free up the label here */
+          release_transaction(pmeta_msg->label);
+     }
+
+     BTIF_TRACE_EVENT("%s: Passing received metamsg response to app. pdu: %s",
+             __FUNCTION__, dump_rc_pdu(avrc_response.pdu));
+     btif_rc_upstreams_rsp_evt((uint16_t)avrc_response.rsp.pdu, &avrc_response, pmeta_msg->code,
+                                pmeta_msg->label);
+}
+#endif
+
+#if (AVRC_CTLR_INCLUDED == TRUE)
+/***************************************************************************
+**
+** Function         iterate_supported_event_list_for_interim_rsp
+**
+** Description      iterator callback function to match the event and handle
+**                  timer cleanup
+** Returns          true to continue iterating, false to stop
+**
+***************************************************************************/
+bool iterate_supported_event_list_for_interim_rsp(void *data, void *cb_data)
+{
+    UINT8 *p_event_id;
+    btif_rc_supported_event_t *p_event = (btif_rc_supported_event_t *)data;
+
+    p_event_id = (UINT8*)cb_data;
+
+    if (p_event->event_id == *p_event_id)
+    {
+        p_event->status = eINTERIM;
+        return false;
+    }
+    return true;
+}
+
+/***************************************************************************
+**
+** Function         iterate_supported_event_list_for_timeout
+**
+** Description      Iterator callback function for timeout handling.
+**                  As part of the failure handling, it releases the
+**                  transaction label and removes the event from list,
+**                  this event will not be requested again during
+**                  the lifetime of the connection.
+** Returns          false to stop iterating, true to continue
+**
+***************************************************************************/
+bool iterate_supported_event_list_for_timeout(void *data, void *cb_data)
+{
+    UINT8 label;
+    btif_rc_supported_event_t *p_event = (btif_rc_supported_event_t *)data;
+
+    label = (*(UINT8*)cb_data) & 0xFF;
+
+    if (p_event->label == label)
+    {
+        list_remove(btif_rc_cb.rc_supported_event_list, p_event);
+        return false;
+    }
+    return true;
+}
+
+/***************************************************************************
+**
+** Function         rc_notification_interim_timout
+**
+** Description      Interim response timeout handler.
+**                  Runs the iterator to check and clear the timed out event.
+**                  Proceeds to register for the unregistered events.
+** Returns          None
+**
+***************************************************************************/
+static void rc_notification_interim_timout (UINT8 label)
+{
+    list_node_t *node;
+
+    list_foreach(btif_rc_cb.rc_supported_event_list,
+                     iterate_supported_event_list_for_timeout, &label);
+    /* Timeout happened for interim response for the registered event,
+     * check if there are any pending for registration
+     */
+    node = list_begin(btif_rc_cb.rc_supported_event_list);
+    while (node != NULL)
+    {
+        btif_rc_supported_event_t *p_event;
+
+        p_event = (btif_rc_supported_event_t *)list_node(node);
+        if ((p_event != NULL) && (p_event->status == eNOT_REGISTERED))
+        {
+            register_for_event_notification(p_event);
+            break;
+        }
+        node = list_next (node);
+    }
+    /* Todo. Need to initiate application settings query if this
+     * is the last event registration.
+     */
+}
+
+/***************************************************************************
+**
+** Function         btif_rc_status_cmd_timeout_handler
+**
+** Description      RC status command timeout handler (Runs in BTIF context).
+** Returns          None
+**
+***************************************************************************/
+static void btif_rc_status_cmd_timeout_handler(UNUSED_ATTR uint16_t event,
+                                               char *data)
+{
+    btif_rc_timer_context_t *p_context;
+    tAVRC_RESPONSE      avrc_response = {0};
+    tBTA_AV_META_MSG    meta_msg;
+
+    p_context = (btif_rc_timer_context_t *)data;
+    memset(&meta_msg, 0, sizeof(tBTA_AV_META_MSG));
+    meta_msg.rc_handle = btif_rc_cb.rc_handle;
+
+    switch (p_context->rc_status_cmd.pdu_id) {
+    case AVRC_PDU_REGISTER_NOTIFICATION:
+        rc_notification_interim_timout(p_context->rc_status_cmd.label);
+        break;
+
+    case AVRC_PDU_GET_CAPABILITIES:
+        avrc_response.get_caps.status = BTIF_RC_STS_TIMEOUT;
+        handle_get_capability_response(&meta_msg, &avrc_response.get_caps);
+        break;
+
+    case AVRC_PDU_LIST_PLAYER_APP_ATTR:
+        avrc_response.list_app_attr.status = BTIF_RC_STS_TIMEOUT;
+        handle_app_attr_response(&meta_msg, &avrc_response.list_app_attr);
+        break;
+
+    case AVRC_PDU_LIST_PLAYER_APP_VALUES:
+        avrc_response.list_app_values.status = BTIF_RC_STS_TIMEOUT;
+        handle_app_val_response(&meta_msg, &avrc_response.list_app_values);
+        break;
+
+    case AVRC_PDU_GET_CUR_PLAYER_APP_VALUE:
+        avrc_response.get_cur_app_val.status = BTIF_RC_STS_TIMEOUT;
+        handle_app_cur_val_response(&meta_msg, &avrc_response.get_cur_app_val);
+        break;
+
+    case AVRC_PDU_GET_PLAYER_APP_ATTR_TEXT:
+        avrc_response.get_app_attr_txt.status = BTIF_RC_STS_TIMEOUT;
+        handle_app_attr_txt_response(&meta_msg, &avrc_response.get_app_attr_txt);
+        break;
+
+    case AVRC_PDU_GET_PLAYER_APP_VALUE_TEXT:
+        avrc_response.get_app_val_txt.status = BTIF_RC_STS_TIMEOUT;
+        handle_app_attr_txt_response(&meta_msg, &avrc_response.get_app_val_txt);
+        break;
+
+    case AVRC_PDU_GET_ELEMENT_ATTR:
+        avrc_response.get_elem_attrs.status = BTIF_RC_STS_TIMEOUT;
+        handle_get_elem_attr_response(&meta_msg, &avrc_response.get_elem_attrs);
+        break;
+
+    case AVRC_PDU_GET_PLAY_STATUS:
+        avrc_response.get_play_status.status = BTIF_RC_STS_TIMEOUT;
+        handle_get_playstatus_response(&meta_msg, &avrc_response.get_play_status);
+        break;
+    }
+    release_transaction(p_context->rc_status_cmd.label);
+}
+
+/***************************************************************************
+**
+** Function         btif_rc_status_cmd_timer_timeout
+**
+** Description      RC status command timeout callback.
+**                  This is called from BTU context and switches to BTIF
+**                  context to handle the timeout events
+** Returns          None
+**
+***************************************************************************/
+static void btif_rc_status_cmd_timer_timeout(void *data)
+{
+    btif_rc_timer_context_t *p_data = (btif_rc_timer_context_t *)data;
+
+    btif_transfer_context(btif_rc_status_cmd_timeout_handler, 0,
+                          (char *)p_data, sizeof(btif_rc_timer_context_t),
+                          NULL);
+}
+
+/***************************************************************************
+**
+** Function         btif_rc_control_cmd_timeout_handler
+**
+** Description      RC control command timeout handler (Runs in BTIF context).
+** Returns          None
+**
+***************************************************************************/
+static void btif_rc_control_cmd_timeout_handler(UNUSED_ATTR uint16_t event,
+                                                char *data)
+{
+    btif_rc_timer_context_t *p_context = (btif_rc_timer_context_t *)data;
+    tAVRC_RESPONSE      avrc_response = {0};
+    tBTA_AV_META_MSG    meta_msg;
+
+    memset(&meta_msg, 0, sizeof(tBTA_AV_META_MSG));
+    meta_msg.rc_handle = btif_rc_cb.rc_handle;
+
+    switch (p_context->rc_control_cmd.pdu_id) {
+    case AVRC_PDU_SET_PLAYER_APP_VALUE:
+        avrc_response.set_app_val.status = BTIF_RC_STS_TIMEOUT;
+        handle_set_app_attr_val_response(&meta_msg,
+                                         &avrc_response.set_app_val);
+        break;
+    }
+    release_transaction(p_context->rc_control_cmd.label);
+}
+
+/***************************************************************************
+**
+** Function         btif_rc_control_cmd_timer_timeout
+**
+** Description      RC control command timeout callback.
+**                  This is called from BTU context and switches to BTIF
+**                  context to handle the timeout events
+** Returns          None
+**
+***************************************************************************/
+static void btif_rc_control_cmd_timer_timeout(void *data)
+{
+    btif_rc_timer_context_t *p_data = (btif_rc_timer_context_t *)data;
+
+    btif_transfer_context(btif_rc_control_cmd_timeout_handler, 0,
+                          (char *)p_data, sizeof(btif_rc_timer_context_t),
+                          NULL);
+}
+
+/***************************************************************************
+**
+** Function         btif_rc_play_status_timeout_handler
+**
+** Description      RC play status timeout handler (Runs in BTIF context).
+** Returns          None
+**
+***************************************************************************/
+static void btif_rc_play_status_timeout_handler(UNUSED_ATTR uint16_t event,
+                                                UNUSED_ATTR char *p_data)
+{
+    get_play_status_cmd();
+    rc_start_play_status_timer();
+}
+
+/***************************************************************************
+**
+** Function         btif_rc_play_status_timer_timeout
+**
+** Description      RC play status timeout callback.
+**                  This is called from BTU context and switches to BTIF
+**                  context to handle the timeout events
+** Returns          None
+**
+***************************************************************************/
+static void btif_rc_play_status_timer_timeout(UNUSED_ATTR void *data)
+{
+    btif_transfer_context(btif_rc_play_status_timeout_handler, 0, 0, 0, NULL);
+}
+
+/***************************************************************************
+**
+** Function         rc_start_play_status_timer
+**
+** Description      Helper function to start the timer to fetch play status.
+** Returns          None
+**
+***************************************************************************/
+static void rc_start_play_status_timer(void)
+{
+    /* Start the Play status timer only if it is not started */
+    if (!alarm_is_scheduled(btif_rc_cb.rc_play_status_timer)) {
+        if (btif_rc_cb.rc_play_status_timer == NULL) {
+            btif_rc_cb.rc_play_status_timer =
+                alarm_new("btif_rc.rc_play_status_timer");
+        }
+        alarm_set_on_queue(btif_rc_cb.rc_play_status_timer,
+                           BTIF_TIMEOUT_RC_INTERIM_RSP_MS,
+                           btif_rc_play_status_timer_timeout, NULL,
+                           btu_general_alarm_queue);
+    }
+}
+
+/***************************************************************************
+**
+** Function         rc_stop_play_status_timer
+**
+** Description      Helper function to stop the play status timer.
+** Returns          None
+**
+***************************************************************************/
+void rc_stop_play_status_timer()
+{
+    if (btif_rc_cb.rc_play_status_timer != NULL)
+        alarm_cancel(btif_rc_cb.rc_play_status_timer);
+}
+
+/***************************************************************************
+**
+** Function         register_for_event_notification
+**
+** Description      Helper function registering notification events
+**                  sets an interim response timeout to handle if the remote
+**                  does not respond.
+** Returns          None
+**
+***************************************************************************/
+static void register_for_event_notification(btif_rc_supported_event_t *p_event)
+{
+    bt_status_t status;
+    rc_transaction_t *p_transaction;
+
+    status = get_transaction(&p_transaction);
+    if (status == BT_STATUS_SUCCESS)
+    {
+        btif_rc_timer_context_t *p_context = &p_transaction->txn_timer_context;
+
+        status = register_notification_cmd (p_transaction->lbl, p_event->event_id, 0);
+        if (status != BT_STATUS_SUCCESS)
+        {
+            BTIF_TRACE_ERROR("%s Error in Notification registration %d",
+                __FUNCTION__, status);
+            release_transaction (p_transaction->lbl);
+            return;
+        }
+        p_event->label = p_transaction->lbl;
+        p_event->status = eREGISTERED;
+        p_context->rc_status_cmd.label = p_transaction->lbl;
+        p_context->rc_status_cmd.pdu_id = AVRC_PDU_REGISTER_NOTIFICATION;
+
+        alarm_free(p_transaction->txn_timer);
+        p_transaction->txn_timer =
+            alarm_new("btif_rc.status_command_txn_timer");
+        alarm_set_on_queue(p_transaction->txn_timer,
+                           BTIF_TIMEOUT_RC_INTERIM_RSP_MS,
+                           btif_rc_status_cmd_timer_timeout, p_context,
+                           btu_general_alarm_queue);
+    }
+    else
+    {
+        BTIF_TRACE_ERROR("%s Error No more Transaction label %d",
+            __FUNCTION__, status);
+    }
+}
+
+static void start_status_command_timer(UINT8 pdu_id, rc_transaction_t *p_txn)
+{
+    btif_rc_timer_context_t *p_context = &p_txn->txn_timer_context;
+    p_context->rc_status_cmd.label = p_txn->lbl;
+    p_context->rc_status_cmd.pdu_id = pdu_id;
+
+    alarm_free(p_txn->txn_timer);
+    p_txn->txn_timer = alarm_new("btif_rc.status_command_txn_timer");
+    alarm_set_on_queue(p_txn->txn_timer, BTIF_TIMEOUT_RC_STATUS_CMD_MS,
+                       btif_rc_status_cmd_timer_timeout, p_context,
+                       btu_general_alarm_queue);
+}
+
+static void start_control_command_timer(UINT8 pdu_id, rc_transaction_t *p_txn)
+{
+    btif_rc_timer_context_t *p_context = &p_txn->txn_timer_context;
+    p_context->rc_control_cmd.label = p_txn->lbl;
+    p_context->rc_control_cmd.pdu_id = pdu_id;
+
+    alarm_free(p_txn->txn_timer);
+    p_txn->txn_timer = alarm_new("btif_rc.control_command_txn_timer");
+    alarm_set_on_queue(p_txn->txn_timer,
+                       BTIF_TIMEOUT_RC_CONTROL_CMD_MS,
+                       btif_rc_control_cmd_timer_timeout, p_context,
+                       btu_general_alarm_queue);
+}
+
+/***************************************************************************
+**
+** Function         handle_get_capability_response
+**
+** Description      Handles the get_cap_response to populate company id info
+**                  and query the supported events.
+**                  Initiates Notification registration for events supported
+** Returns          None
+**
+***************************************************************************/
+static void handle_get_capability_response (tBTA_AV_META_MSG *pmeta_msg, tAVRC_GET_CAPS_RSP *p_rsp)
+{
+    int xx = 0;
+
+    /* Todo: Do we need to retry on command timeout */
+    if (p_rsp->status != AVRC_STS_NO_ERROR)
+    {
+        BTIF_TRACE_ERROR("%s Error capability response 0x%02X",
+                __FUNCTION__, p_rsp->status);
+        return;
+    }
+
+    if (p_rsp->capability_id == AVRC_CAP_EVENTS_SUPPORTED)
+    {
+        btif_rc_supported_event_t *p_event;
+
+        /* Todo: Check if list can be active when we hit here */
+        btif_rc_cb.rc_supported_event_list = list_new(osi_free);
+        for (xx = 0; xx < p_rsp->count; xx++)
+        {
+            /* Skip registering for Play position change notification */
+            if ((p_rsp->param.event_id[xx] == AVRC_EVT_PLAY_STATUS_CHANGE)||
+                (p_rsp->param.event_id[xx] == AVRC_EVT_TRACK_CHANGE)||
+                (p_rsp->param.event_id[xx] == AVRC_EVT_APP_SETTING_CHANGE))
+            {
+                p_event = (btif_rc_supported_event_t *)osi_malloc(sizeof(btif_rc_supported_event_t));
+                p_event->event_id = p_rsp->param.event_id[xx];
+                p_event->status = eNOT_REGISTERED;
+                list_append(btif_rc_cb.rc_supported_event_list, p_event);
+            }
+        }
+        p_event = list_front(btif_rc_cb.rc_supported_event_list);
+        if (p_event != NULL)
+        {
+            register_for_event_notification(p_event);
+        }
+    }
+    else if (p_rsp->capability_id == AVRC_CAP_COMPANY_ID)
+    {
+        getcapabilities_cmd (AVRC_CAP_EVENTS_SUPPORTED);
+        BTIF_TRACE_EVENT("%s AVRC_CAP_COMPANY_ID: ", __FUNCTION__);
+        for (xx = 0; xx < p_rsp->count; xx++)
+        {
+            BTIF_TRACE_EVENT("%s    : %d", __FUNCTION__, p_rsp->param.company_id[xx]);
+        }
+    }
+}
+
+bool rc_is_track_id_valid (tAVRC_UID uid)
+{
+    tAVRC_UID invalid_uid = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
+
+    if (memcmp(uid, invalid_uid, sizeof(tAVRC_UID)) == 0)
+    {
+        return false;
+    }
+    else
+    {
+        return true;
+    }
+}
+
+/***************************************************************************
+**
+** Function         handle_notification_response
+**
+** Description      Main handler for notification responses to registered events
+**                  1. Register for unregistered event(in interim response path)
+**                  2. After registering for all supported events, start
+**                     retrieving application settings and values
+**                  3. Reregister for events on getting changed response
+**                  4. Run play status timer for getting position when the
+**                     status changes to playing
+**                  5. Get the Media details when the track change happens
+**                     or track change interim response is received with
+**                     valid track id
+**                  6. HAL callback for play status change and application
+**                     setting change
+** Returns          None
+**
+***************************************************************************/
+static void handle_notification_response (tBTA_AV_META_MSG *pmeta_msg, tAVRC_REG_NOTIF_RSP *p_rsp)
+{
+    bt_bdaddr_t rc_addr;
+    UINT32 attr_list[] = {
+        AVRC_MEDIA_ATTR_ID_TITLE,
+        AVRC_MEDIA_ATTR_ID_ARTIST,
+        AVRC_MEDIA_ATTR_ID_ALBUM,
+        AVRC_MEDIA_ATTR_ID_TRACK_NUM,
+        AVRC_MEDIA_ATTR_ID_NUM_TRACKS,
+        AVRC_MEDIA_ATTR_ID_GENRE,
+        AVRC_MEDIA_ATTR_ID_PLAYING_TIME
+        };
+
+
+    bdcpy(rc_addr.address, btif_rc_cb.rc_addr);
+
+    if (pmeta_msg->code == AVRC_RSP_INTERIM)
+    {
+        btif_rc_supported_event_t *p_event;
+        list_node_t *node;
+
+        BTIF_TRACE_DEBUG("%s Interim response : 0x%2X ", __FUNCTION__, p_rsp->event_id);
+        switch (p_rsp->event_id)
+        {
+            case AVRC_EVT_PLAY_STATUS_CHANGE:
+                /* Start timer to get play status periodically
+                 * if the play state is playing.
+                 */
+                if (p_rsp->param.play_status == AVRC_PLAYSTATE_PLAYING)
+                {
+                    rc_start_play_status_timer();
+                }
+                HAL_CBACK(bt_rc_ctrl_callbacks, play_status_changed_cb,
+                    &rc_addr, p_rsp->param.play_status);
+                break;
+
+            case AVRC_EVT_TRACK_CHANGE:
+                if (rc_is_track_id_valid (p_rsp->param.track) != true)
+                {
+                    break;
+                }
+                else
+                {
+                    UINT8 *p_data = p_rsp->param.track;
+                    /* Update the UID for current track
+                     * Attributes will be fetched after the AVRCP procedure
+                     */
+                    BE_STREAM_TO_UINT64(btif_rc_cb.rc_playing_uid, p_data);
+                }
+                break;
+
+            case AVRC_EVT_APP_SETTING_CHANGE:
+                break;
+
+            case AVRC_EVT_NOW_PLAYING_CHANGE:
+                break;
+
+            case AVRC_EVT_AVAL_PLAYERS_CHANGE:
+                break;
+
+            case AVRC_EVT_ADDR_PLAYER_CHANGE:
+                break;
+
+            case AVRC_EVT_UIDS_CHANGE:
+                break;
+
+            case AVRC_EVT_TRACK_REACHED_END:
+            case AVRC_EVT_TRACK_REACHED_START:
+            case AVRC_EVT_PLAY_POS_CHANGED:
+            case AVRC_EVT_BATTERY_STATUS_CHANGE:
+            case AVRC_EVT_SYSTEM_STATUS_CHANGE:
+            default:
+                BTIF_TRACE_ERROR("%s  Unhandled interim response 0x%2X", __FUNCTION__,
+                    p_rsp->event_id);
+                return;
+        }
+        list_foreach(btif_rc_cb.rc_supported_event_list,
+                iterate_supported_event_list_for_interim_rsp,
+                &p_rsp->event_id);
+
+        node = list_begin(btif_rc_cb.rc_supported_event_list);
+        while (node != NULL)
+        {
+            p_event = (btif_rc_supported_event_t *)list_node(node);
+            if ((p_event != NULL) && (p_event->status == eNOT_REGISTERED))
+            {
+                register_for_event_notification(p_event);
+                break;
+            }
+            node = list_next (node);
+            p_event = NULL;
+        }
+        /* Registered for all events, we can request application settings */
+        if ((p_event == NULL) && (btif_rc_cb.rc_app_settings.query_started == false))
+        {
+            /* we need to do this only if remote TG supports
+             * player application settings
+             */
+            btif_rc_cb.rc_app_settings.query_started = TRUE;
+            if (btif_rc_cb.rc_features & BTA_AV_FEAT_APP_SETTING)
+            {
+                list_player_app_setting_attrib_cmd();
+            }
+            else
+            {
+                BTIF_TRACE_DEBUG("%s App setting not supported, complete procedure", __FUNCTION__);
+                rc_ctrl_procedure_complete();
+            }
+        }
+    }
+    else if (pmeta_msg->code == AVRC_RSP_CHANGED)
+    {
+        btif_rc_supported_event_t *p_event;
+        list_node_t *node;
+
+        BTIF_TRACE_DEBUG("%s Notification completed : 0x%2X ", __FUNCTION__,
+            p_rsp->event_id);
+
+        node = list_begin(btif_rc_cb.rc_supported_event_list);
+        while (node != NULL)
+        {
+            p_event = (btif_rc_supported_event_t *)list_node(node);
+            if ((p_event != NULL) && (p_event->event_id == p_rsp->event_id))
+            {
+                p_event->status = eNOT_REGISTERED;
+                register_for_event_notification(p_event);
+                break;
+            }
+            node = list_next (node);
+        }
+
+        switch (p_rsp->event_id)
+        {
+            case AVRC_EVT_PLAY_STATUS_CHANGE:
+                /* Start timer to get play status periodically
+                 * if the play state is playing.
+                 */
+                if (p_rsp->param.play_status == AVRC_PLAYSTATE_PLAYING)
+                {
+                    rc_start_play_status_timer();
+                }
+                else
+                {
+                    rc_stop_play_status_timer();
+                }
+                HAL_CBACK(bt_rc_ctrl_callbacks, play_status_changed_cb,
+                    &rc_addr, p_rsp->param.play_status);
+                break;
+
+            case AVRC_EVT_TRACK_CHANGE:
+                if (rc_is_track_id_valid (p_rsp->param.track) != true)
+                {
+                    break;
+                }
+                get_element_attribute_cmd (AVRC_MAX_NUM_MEDIA_ATTR_ID, attr_list);
+                break;
+
+            case AVRC_EVT_APP_SETTING_CHANGE:
+            {
+                btrc_player_settings_t app_settings;
+                UINT16 xx;
+
+                app_settings.num_attr = p_rsp->param.player_setting.num_attr;
+                for (xx = 0; xx < app_settings.num_attr; xx++)
+                {
+                    app_settings.attr_ids[xx] = p_rsp->param.player_setting.attr_id[xx];
+                    app_settings.attr_values[xx] = p_rsp->param.player_setting.attr_value[xx];
+                }
+                HAL_CBACK(bt_rc_ctrl_callbacks, playerapplicationsetting_changed_cb,
+                    &rc_addr, &app_settings);
+            }
+                break;
+
+            case AVRC_EVT_NOW_PLAYING_CHANGE:
+                break;
+
+            case AVRC_EVT_AVAL_PLAYERS_CHANGE:
+                break;
+
+            case AVRC_EVT_ADDR_PLAYER_CHANGE:
+                break;
+
+            case AVRC_EVT_UIDS_CHANGE:
+                break;
+
+            case AVRC_EVT_TRACK_REACHED_END:
+            case AVRC_EVT_TRACK_REACHED_START:
+            case AVRC_EVT_PLAY_POS_CHANGED:
+            case AVRC_EVT_BATTERY_STATUS_CHANGE:
+            case AVRC_EVT_SYSTEM_STATUS_CHANGE:
+            default:
+                BTIF_TRACE_ERROR("%s  Unhandled completion response 0x%2X",
+                    __FUNCTION__, p_rsp->event_id);
+                return;
+        }
+    }
+}
+
+/***************************************************************************
+**
+** Function         handle_app_attr_response
+**
+** Description      handles the the application attributes response and
+**                  initiates procedure to fetch the attribute values
+** Returns          None
+**
+***************************************************************************/
+static void handle_app_attr_response (tBTA_AV_META_MSG *pmeta_msg, tAVRC_LIST_APP_ATTR_RSP *p_rsp)
+{
+    UINT8 xx;
+
+    if (p_rsp->status != AVRC_STS_NO_ERROR)
+    {
+        BTIF_TRACE_ERROR("%s Error getting Player application settings: 0x%2X",
+                __FUNCTION__, p_rsp->status);
+        rc_ctrl_procedure_complete();
+        return;
+    }
+
+    for (xx = 0; xx < p_rsp->num_attr; xx++)
+    {
+        UINT8 st_index;
+
+        if (p_rsp->attrs[xx] > AVRC_PLAYER_SETTING_LOW_MENU_EXT)
+        {
+            st_index = btif_rc_cb.rc_app_settings.num_ext_attrs;
+            btif_rc_cb.rc_app_settings.ext_attrs[st_index].attr_id = p_rsp->attrs[xx];
+            btif_rc_cb.rc_app_settings.num_ext_attrs++;
+        }
+        else
+        {
+            st_index = btif_rc_cb.rc_app_settings.num_attrs;
+            btif_rc_cb.rc_app_settings.attrs[st_index].attr_id = p_rsp->attrs[xx];
+            btif_rc_cb.rc_app_settings.num_attrs++;
+        }
+    }
+    btif_rc_cb.rc_app_settings.attr_index = 0;
+    btif_rc_cb.rc_app_settings.ext_attr_index = 0;
+    btif_rc_cb.rc_app_settings.ext_val_index = 0;
+    if (p_rsp->num_attr)
+    {
+        list_player_app_setting_value_cmd (btif_rc_cb.rc_app_settings.attrs[0].attr_id);
+    }
+    else
+    {
+        BTIF_TRACE_ERROR("%s No Player application settings found",
+                __FUNCTION__);
+    }
+}
+
+/***************************************************************************
+**
+** Function         handle_app_val_response
+**
+** Description      handles the the attributes value response and if extended
+**                  menu is available, it initiates query for the attribute
+**                  text. If not, it initiates procedure to get the current
+**                  attribute values and calls the HAL callback for provding
+**                  application settings information.
+** Returns          None
+**
+***************************************************************************/
+static void handle_app_val_response (tBTA_AV_META_MSG *pmeta_msg, tAVRC_LIST_APP_VALUES_RSP *p_rsp)
+{
+    UINT8 xx, attr_index;
+    UINT8 attrs[AVRC_MAX_APP_ATTR_SIZE];
+    btif_rc_player_app_settings_t *p_app_settings;
+    bt_bdaddr_t rc_addr;
+
+    /* Todo: Do we need to retry on command timeout */
+    if (p_rsp->status != AVRC_STS_NO_ERROR)
+    {
+        BTIF_TRACE_ERROR("%s Error fetching attribute values 0x%02X",
+                __FUNCTION__, p_rsp->status);
+        return;
+    }
+
+    p_app_settings = &btif_rc_cb.rc_app_settings;
+    bdcpy(rc_addr.address, btif_rc_cb.rc_addr);
+
+    if (p_app_settings->attr_index < p_app_settings->num_attrs)
+    {
+        attr_index = p_app_settings->attr_index;
+        p_app_settings->attrs[attr_index].num_val = p_rsp->num_val;
+        for (xx = 0; xx < p_rsp->num_val; xx++)
+        {
+            p_app_settings->attrs[attr_index].attr_val[xx] = p_rsp->vals[xx];
+        }
+        attr_index++;
+        p_app_settings->attr_index++;
+        if (attr_index < p_app_settings->num_attrs)
+        {
+            list_player_app_setting_value_cmd (p_app_settings->attrs[p_app_settings->attr_index].attr_id);
+        }
+        else if (p_app_settings->ext_attr_index < p_app_settings->num_ext_attrs)
+        {
+            attr_index = 0;
+            p_app_settings->ext_attr_index = 0;
+            list_player_app_setting_value_cmd (p_app_settings->ext_attrs[attr_index].attr_id);
+        }
+        else
+        {
+            for (xx = 0; xx < p_app_settings->num_attrs; xx++)
+            {
+                attrs[xx] = p_app_settings->attrs[xx].attr_id;
+            }
+            get_player_app_setting_cmd (p_app_settings->num_attrs, attrs);
+            HAL_CBACK (bt_rc_ctrl_callbacks, playerapplicationsetting_cb, &rc_addr,
+                        p_app_settings->num_attrs, p_app_settings->attrs, 0, NULL);
+        }
+    }
+    else if (p_app_settings->ext_attr_index < p_app_settings->num_ext_attrs)
+    {
+        attr_index = p_app_settings->ext_attr_index;
+        p_app_settings->ext_attrs[attr_index].num_val = p_rsp->num_val;
+        for (xx = 0; xx < p_rsp->num_val; xx++)
+        {
+            p_app_settings->ext_attrs[attr_index].ext_attr_val[xx].val = p_rsp->vals[xx];
+        }
+        attr_index++;
+        p_app_settings->ext_attr_index++;
+        if (attr_index < p_app_settings->num_ext_attrs)
+        {
+            list_player_app_setting_value_cmd (p_app_settings->ext_attrs[p_app_settings->ext_attr_index].attr_id);
+        }
+        else
+        {
+            UINT8 attr[AVRC_MAX_APP_ATTR_SIZE];
+            UINT8 xx;
+
+            for (xx = 0; xx < p_app_settings->num_ext_attrs; xx++)
+            {
+                attr[xx] = p_app_settings->ext_attrs[xx].attr_id;
+            }
+            get_player_app_setting_attr_text_cmd(attr, xx);
+        }
+    }
+}
+
+/***************************************************************************
+**
+** Function         handle_app_cur_val_response
+**
+** Description      handles the the get attributes value response.
+**
+** Returns          None
+**
+***************************************************************************/
+static void handle_app_cur_val_response (tBTA_AV_META_MSG *pmeta_msg, tAVRC_GET_CUR_APP_VALUE_RSP *p_rsp)
+{
+    btrc_player_settings_t app_settings;
+    bt_bdaddr_t rc_addr;
+    UINT16 xx;
+
+    /* Todo: Do we need to retry on command timeout */
+    if (p_rsp->status != AVRC_STS_NO_ERROR)
+    {
+        BTIF_TRACE_ERROR("%s Error fetching current settings: 0x%02X",
+                __FUNCTION__, p_rsp->status);
+        return;
+    }
+
+    bdcpy(rc_addr.address, btif_rc_cb.rc_addr);
+
+    app_settings.num_attr = p_rsp->num_val;
+    for (xx = 0; xx < app_settings.num_attr; xx++)
+    {
+        app_settings.attr_ids[xx] = p_rsp->p_vals[xx].attr_id;
+        app_settings.attr_values[xx] = p_rsp->p_vals[xx].attr_val;
+    }
+    HAL_CBACK(bt_rc_ctrl_callbacks, playerapplicationsetting_changed_cb,
+        &rc_addr, &app_settings);
+    /* Application settings are fetched only once for initial values
+     * initiate anything that follows after RC procedure.
+     * Defer it if browsing is supported till players query
+     */
+    rc_ctrl_procedure_complete ();
+    osi_free_and_reset((void **)&p_rsp->p_vals);
+}
+
+/***************************************************************************
+**
+** Function         handle_app_attr_txt_response
+**
+** Description      handles the the get attributes text response, if fails
+**                  calls HAL callback with just normal settings and initiates
+**                  query for current settings else initiates query for value text
+** Returns          None
+**
+***************************************************************************/
+static void handle_app_attr_txt_response (tBTA_AV_META_MSG *pmeta_msg, tAVRC_GET_APP_ATTR_TXT_RSP *p_rsp)
+{
+    UINT8 xx;
+    UINT8 vals[AVRC_MAX_APP_ATTR_SIZE];
+    btif_rc_player_app_settings_t *p_app_settings;
+    bt_bdaddr_t rc_addr;
+
+    p_app_settings = &btif_rc_cb.rc_app_settings;
+    bdcpy(rc_addr.address, btif_rc_cb.rc_addr);
+
+    /* Todo: Do we need to retry on command timeout */
+    if (p_rsp->status != AVRC_STS_NO_ERROR)
+    {
+        UINT8 attrs[AVRC_MAX_APP_ATTR_SIZE];
+
+        BTIF_TRACE_ERROR("%s Error fetching attribute text: 0x%02X",
+                __FUNCTION__, p_rsp->status);
+        /* Not able to fetch Text for extended Menu, skip the process
+         * and cleanup used memory. Proceed to get the current settings
+         * for standard attributes.
+         */
+        p_app_settings->num_ext_attrs = 0;
+        for (xx = 0; xx < p_app_settings->ext_attr_index; xx++)
+            osi_free_and_reset((void **)&p_app_settings->ext_attrs[xx].p_str);
+        p_app_settings->ext_attr_index = 0;
+
+        for (xx = 0; xx < p_app_settings->num_attrs; xx++)
+        {
+            attrs[xx] = p_app_settings->attrs[xx].attr_id;
+        }
+        HAL_CBACK (bt_rc_ctrl_callbacks, playerapplicationsetting_cb, &rc_addr,
+                    p_app_settings->num_attrs, p_app_settings->attrs, 0, NULL);
+
+        get_player_app_setting_cmd (xx, attrs);
+        return;
+    }
+
+    for (xx = 0; xx < p_rsp->num_attr; xx++)
+    {
+        UINT8 x;
+        for (x = 0; x < p_app_settings->num_ext_attrs; x++)
+        {
+            if (p_app_settings->ext_attrs[x].attr_id == p_rsp->p_attrs[xx].attr_id)
+            {
+                p_app_settings->ext_attrs[x].charset_id = p_rsp->p_attrs[xx].charset_id;
+                p_app_settings->ext_attrs[x].str_len = p_rsp->p_attrs[xx].str_len;
+                p_app_settings->ext_attrs[x].p_str = p_rsp->p_attrs[xx].p_str;
+                break;
+            }
+        }
+    }
+
+    for (xx = 0; xx < p_app_settings->ext_attrs[0].num_val; xx++)
+    {
+        vals[xx] = p_app_settings->ext_attrs[0].ext_attr_val[xx].val;
+    }
+    get_player_app_setting_value_text_cmd(vals, xx);
+}
+
+
+/***************************************************************************
+**
+** Function         handle_app_attr_val_txt_response
+**
+** Description      handles the the get attributes value text response, if fails
+**                  calls HAL callback with just normal settings and initiates
+**                  query for current settings
+** Returns          None
+**
+***************************************************************************/
+static void handle_app_attr_val_txt_response (tBTA_AV_META_MSG *pmeta_msg, tAVRC_GET_APP_ATTR_TXT_RSP *p_rsp)
+{
+    UINT8 xx, attr_index;
+    UINT8 vals[AVRC_MAX_APP_ATTR_SIZE];
+    UINT8 attrs[AVRC_MAX_APP_ATTR_SIZE];
+    btif_rc_player_app_settings_t *p_app_settings;
+    bt_bdaddr_t rc_addr;
+
+    bdcpy(rc_addr.address, btif_rc_cb.rc_addr);
+    p_app_settings = &btif_rc_cb.rc_app_settings;
+
+    /* Todo: Do we need to retry on command timeout */
+    if (p_rsp->status != AVRC_STS_NO_ERROR)
+    {
+        UINT8 attrs[AVRC_MAX_APP_ATTR_SIZE];
+
+        BTIF_TRACE_ERROR("%s Error fetching attribute value text: 0x%02X",
+                __FUNCTION__, p_rsp->status);
+
+        /* Not able to fetch Text for extended Menu, skip the process
+         * and cleanup used memory. Proceed to get the current settings
+         * for standard attributes.
+         */
+        p_app_settings->num_ext_attrs = 0;
+        for (xx = 0; xx < p_app_settings->ext_attr_index; xx++)
+        {
+            int x;
+            btrc_player_app_ext_attr_t *p_ext_attr = &p_app_settings->ext_attrs[xx];
+
+            for (x = 0; x < p_ext_attr->num_val; x++)
+                osi_free_and_reset((void **)&p_ext_attr->ext_attr_val[x].p_str);
+            p_ext_attr->num_val = 0;
+            osi_free_and_reset((void **)&p_app_settings->ext_attrs[xx].p_str);
+        }
+        p_app_settings->ext_attr_index = 0;
+
+        for (xx = 0; xx < p_app_settings->num_attrs; xx++)
+        {
+            attrs[xx] = p_app_settings->attrs[xx].attr_id;
+        }
+        HAL_CBACK (bt_rc_ctrl_callbacks, playerapplicationsetting_cb, &rc_addr,
+                    p_app_settings->num_attrs, p_app_settings->attrs, 0, NULL);
+
+        get_player_app_setting_cmd (xx, attrs);
+        return;
+    }
+
+    for (xx = 0; xx < p_rsp->num_attr; xx++)
+    {
+        UINT8 x;
+        btrc_player_app_ext_attr_t *p_ext_attr;
+        p_ext_attr = &p_app_settings->ext_attrs[p_app_settings->ext_val_index];
+        for (x = 0; x < p_rsp->num_attr; x++)
+        {
+            if (p_ext_attr->ext_attr_val[x].val == p_rsp->p_attrs[xx].attr_id)
+            {
+                p_ext_attr->ext_attr_val[x].charset_id = p_rsp->p_attrs[xx].charset_id;
+                p_ext_attr->ext_attr_val[x].str_len = p_rsp->p_attrs[xx].str_len;
+                p_ext_attr->ext_attr_val[x].p_str = p_rsp->p_attrs[xx].p_str;
+                break;
+            }
+        }
+    }
+    p_app_settings->ext_val_index++;
+
+    if (p_app_settings->ext_val_index < p_app_settings->num_ext_attrs)
+    {
+        attr_index = p_app_settings->ext_val_index;
+        for (xx = 0; xx < p_app_settings->ext_attrs[attr_index].num_val; xx++)
+        {
+            vals[xx] = p_app_settings->ext_attrs[attr_index].ext_attr_val[xx].val;
+        }
+        get_player_app_setting_value_text_cmd(vals, xx);
+    }
+    else
+    {
+        UINT8 x;
+
+        for (xx = 0; xx < p_app_settings->num_attrs; xx++)
+        {
+            attrs[xx] = p_app_settings->attrs[xx].attr_id;
+        }
+        for (x = 0; x < p_app_settings->num_ext_attrs; x++)
+        {
+            attrs[xx+x] = p_app_settings->ext_attrs[x].attr_id;
+        }
+        HAL_CBACK (bt_rc_ctrl_callbacks, playerapplicationsetting_cb, &rc_addr,
+                    p_app_settings->num_attrs, p_app_settings->attrs,
+                    p_app_settings->num_ext_attrs, p_app_settings->ext_attrs);
+        get_player_app_setting_cmd (xx + x, attrs);
+
+        /* Free the application settings information after sending to
+         * application.
+         */
+        for (xx = 0; xx < p_app_settings->ext_attr_index; xx++)
+        {
+            int x;
+            btrc_player_app_ext_attr_t *p_ext_attr = &p_app_settings->ext_attrs[xx];
+
+            for (x = 0; x < p_ext_attr->num_val; x++)
+                osi_free_and_reset((void **)&p_ext_attr->ext_attr_val[x].p_str);
+            p_ext_attr->num_val = 0;
+            osi_free_and_reset((void **)&p_app_settings->ext_attrs[xx].p_str);
+        }
+        p_app_settings->num_attrs = 0;
+    }
+}
+
+/***************************************************************************
+**
+** Function         handle_set_app_attr_val_response
+**
+** Description      handles the the set attributes value response, if fails
+**                  calls HAL callback to indicate the failure
+** Returns          None
+**
+***************************************************************************/
+static void handle_set_app_attr_val_response (tBTA_AV_META_MSG *pmeta_msg, tAVRC_RSP *p_rsp)
+{
+    uint8_t accepted = 0;
+    bt_bdaddr_t rc_addr;
+
+    bdcpy(rc_addr.address, btif_rc_cb.rc_addr);
+
+    /* For timeout pmeta_msg will be NULL, else we need to
+     * check if this is accepted by TG
+     */
+    if (pmeta_msg && (pmeta_msg->code == AVRC_RSP_ACCEPT))
+    {
+        accepted = 1;
+    }
+    HAL_CBACK(bt_rc_ctrl_callbacks, setplayerappsetting_rsp_cb, &rc_addr, accepted);
+}
+
+/***************************************************************************
+**
+** Function         handle_get_elem_attr_response
+**
+** Description      handles the the element attributes response, calls
+**                  HAL callback to update track change information.
+** Returns          None
+**
+***************************************************************************/
+static void handle_get_elem_attr_response (tBTA_AV_META_MSG *pmeta_msg,
+                                           tAVRC_GET_ELEM_ATTRS_RSP *p_rsp)
+{
+    if (p_rsp->status == AVRC_STS_NO_ERROR) {
+        bt_bdaddr_t rc_addr;
+        size_t buf_size = p_rsp->num_attr * sizeof(btrc_element_attr_val_t);
+        btrc_element_attr_val_t *p_attr =
+            (btrc_element_attr_val_t *)osi_calloc(buf_size);
+
+        bdcpy(rc_addr.address, btif_rc_cb.rc_addr);
+
+        for (int i = 0; i < p_rsp->num_attr; i++) {
+            p_attr[i].attr_id = p_rsp->p_attrs[i].attr_id;
+            /* Todo. Legth limit check to include null */
+            if (p_rsp->p_attrs[i].name.str_len &&
+                p_rsp->p_attrs[i].name.p_str) {
+                memcpy(p_attr[i].text, p_rsp->p_attrs[i].name.p_str,
+                       p_rsp->p_attrs[i].name.str_len);
+                osi_free_and_reset((void **)&p_rsp->p_attrs[i].name.p_str);
+            }
+        }
+        HAL_CBACK(bt_rc_ctrl_callbacks, track_changed_cb,
+                  &rc_addr, p_rsp->num_attr, p_attr);
+        osi_free(p_attr);
+    } else if (p_rsp->status == BTIF_RC_STS_TIMEOUT) {
+        /* Retry for timeout case, this covers error handling
+         * for continuation failure also.
+         */
+        UINT32 attr_list[] = {
+            AVRC_MEDIA_ATTR_ID_TITLE,
+            AVRC_MEDIA_ATTR_ID_ARTIST,
+            AVRC_MEDIA_ATTR_ID_ALBUM,
+            AVRC_MEDIA_ATTR_ID_TRACK_NUM,
+            AVRC_MEDIA_ATTR_ID_NUM_TRACKS,
+            AVRC_MEDIA_ATTR_ID_GENRE,
+            AVRC_MEDIA_ATTR_ID_PLAYING_TIME
+            };
+        get_element_attribute_cmd (AVRC_MAX_NUM_MEDIA_ATTR_ID, attr_list);
+    } else {
+        BTIF_TRACE_ERROR("%s: Error in get element attr procedure %d",
+                         __func__, p_rsp->status);
+    }
+}
+
+/***************************************************************************
+**
+** Function         handle_get_playstatus_response
+**
+** Description      handles the the play status response, calls
+**                  HAL callback to update play position.
+** Returns          None
+**
+***************************************************************************/
+static void handle_get_playstatus_response (tBTA_AV_META_MSG *pmeta_msg, tAVRC_GET_PLAY_STATUS_RSP *p_rsp)
+{
+    bt_bdaddr_t rc_addr;
+
+    bdcpy(rc_addr.address, btif_rc_cb.rc_addr);
+
+    if (p_rsp->status == AVRC_STS_NO_ERROR)
+    {
+        HAL_CBACK(bt_rc_ctrl_callbacks, play_position_changed_cb,
+            &rc_addr, p_rsp->song_len, p_rsp->song_pos);
+    }
+    else
+    {
+        BTIF_TRACE_ERROR("%s: Error in get play status procedure %d",
+            __FUNCTION__, p_rsp->status);
+    }
+}
+
+/***************************************************************************
+**
+** Function         clear_cmd_timeout
+**
+** Description      helper function to stop the command timeout timer
+** Returns          None
+**
+***************************************************************************/
+static void clear_cmd_timeout (UINT8 label)
+{
+    rc_transaction_t *p_txn;
+
+    p_txn = get_transaction_by_lbl (label);
+    if (p_txn == NULL)
+    {
+        BTIF_TRACE_ERROR("%s: Error in transaction label lookup", __FUNCTION__);
+        return;
+    }
+
+    if (p_txn->txn_timer != NULL)
+        alarm_cancel(p_txn->txn_timer);
+}
+
+/***************************************************************************
+**
+** Function         handle_avk_rc_metamsg_rsp
+**
+** Description      Handle RC metamessage response
+**
+** Returns          void
+**
+***************************************************************************/
+static void handle_avk_rc_metamsg_rsp(tBTA_AV_META_MSG *pmeta_msg)
+{
+    tAVRC_RESPONSE    avrc_response = {0};
+    UINT8             scratch_buf[512] = {0};// this variable is unused
+    UINT16            buf_len;
+    tAVRC_STS         status;
+
+    BTIF_TRACE_DEBUG("%s opcode = %d rsp_code = %d  ", __FUNCTION__,
+                        pmeta_msg->p_msg->hdr.opcode, pmeta_msg->code);
+
+    if ((AVRC_OP_VENDOR == pmeta_msg->p_msg->hdr.opcode)&&
+                (pmeta_msg->code >= AVRC_RSP_NOT_IMPL)&&
+                (pmeta_msg->code <= AVRC_RSP_INTERIM))
+    {
+        status = AVRC_Ctrl_ParsResponse(pmeta_msg->p_msg, &avrc_response, scratch_buf, &buf_len);
+        BTIF_TRACE_DEBUG("%s parse status %d pdu = %d rsp_status = %d",
+                         __FUNCTION__, status, avrc_response.pdu,
+                         pmeta_msg->p_msg->vendor.hdr.ctype);
+
+        switch (avrc_response.pdu)
+        {
+            case AVRC_PDU_REGISTER_NOTIFICATION:
+                handle_notification_response(pmeta_msg, &avrc_response.reg_notif);
+                if (pmeta_msg->code == AVRC_RSP_INTERIM)
+                {
+                    /* Don't free the transaction Id */
+                    clear_cmd_timeout (pmeta_msg->label);
+                    return;
+                }
+                break;
+
+            case AVRC_PDU_GET_CAPABILITIES:
+                handle_get_capability_response(pmeta_msg, &avrc_response.get_caps);
+                break;
+
+            case AVRC_PDU_LIST_PLAYER_APP_ATTR:
+                handle_app_attr_response(pmeta_msg, &avrc_response.list_app_attr);
+                break;
+
+            case AVRC_PDU_LIST_PLAYER_APP_VALUES:
+                handle_app_val_response(pmeta_msg, &avrc_response.list_app_values);
+                break;
+
+            case AVRC_PDU_GET_CUR_PLAYER_APP_VALUE:
+                handle_app_cur_val_response(pmeta_msg, &avrc_response.get_cur_app_val);
+                break;
+
+            case AVRC_PDU_GET_PLAYER_APP_ATTR_TEXT:
+                handle_app_attr_txt_response(pmeta_msg, &avrc_response.get_app_attr_txt);
+                break;
+
+            case AVRC_PDU_GET_PLAYER_APP_VALUE_TEXT:
+                handle_app_attr_val_txt_response(pmeta_msg, &avrc_response.get_app_val_txt);
+                break;
+
+            case AVRC_PDU_SET_PLAYER_APP_VALUE:
+                handle_set_app_attr_val_response(pmeta_msg, &avrc_response.set_app_val);
+                break;
+
+            case AVRC_PDU_GET_ELEMENT_ATTR:
+                handle_get_elem_attr_response(pmeta_msg, &avrc_response.get_elem_attrs);
+                break;
+
+            case AVRC_PDU_GET_PLAY_STATUS:
+                handle_get_playstatus_response(pmeta_msg, &avrc_response.get_play_status);
+                break;
+        }
+        release_transaction(pmeta_msg->label);
+    }
+    else
+    {
+        BTIF_TRACE_DEBUG("%s:Invalid Vendor Command  code: %d len: %d. Not processing it.",
+            __FUNCTION__, pmeta_msg->code, pmeta_msg->len);
+        return;
+    }
+}
+
+/***************************************************************************
+**
+** Function         handle_avk_rc_metamsg_cmd
+**
+** Description      Handle RC metamessage response
+**
+** Returns          void
+**
+***************************************************************************/
+static void handle_avk_rc_metamsg_cmd(tBTA_AV_META_MSG *pmeta_msg)
+{
+    tAVRC_COMMAND    avrc_cmd = {0};
+    tAVRC_STS status = BT_STATUS_UNSUPPORTED;
+    BTIF_TRACE_DEBUG("%s opcode = %d rsp_code = %d  ",__FUNCTION__,
+                     pmeta_msg->p_msg->hdr.opcode,pmeta_msg->code);
+    if ((AVRC_OP_VENDOR==pmeta_msg->p_msg->hdr.opcode)&&
+                (pmeta_msg->code <= AVRC_CMD_GEN_INQ))
+    {
+        status = AVRC_Ctrl_ParsCommand(pmeta_msg->p_msg, &avrc_cmd);
+        BTIF_TRACE_DEBUG("%s Received vendor command.code %d, PDU %d label %d",
+                         __FUNCTION__, pmeta_msg->code, avrc_cmd.pdu, pmeta_msg->label);
+
+        if (status != AVRC_STS_NO_ERROR)
+        {
+            /* return error */
+            BTIF_TRACE_WARNING("%s: Error in parsing received metamsg command. status: 0x%02x",
+                __FUNCTION__, status);
+            send_reject_response(pmeta_msg->rc_handle, pmeta_msg->label, avrc_cmd.pdu, status);
+        }
+        else
+        {
+            if (avrc_cmd.pdu == AVRC_PDU_REGISTER_NOTIFICATION)
+            {
+                UINT8 event_id = avrc_cmd.reg_notif.event_id;
+                BTIF_TRACE_EVENT("%s:Register notification event_id: %s",
+                        __FUNCTION__, dump_rc_notification_event_id(event_id));
+            }
+            else if (avrc_cmd.pdu == AVRC_PDU_SET_ABSOLUTE_VOLUME)
+            {
+                BTIF_TRACE_EVENT("%s: Abs Volume Cmd Recvd", __FUNCTION__);
+            }
+            btif_rc_ctrl_upstreams_rsp_cmd(avrc_cmd.pdu, &avrc_cmd, pmeta_msg->label);
+        }
+    }
+    else
+    {
+      BTIF_TRACE_DEBUG("%s:Invalid Vendor Command  code: %d len: %d. Not processing it.",
+                       __FUNCTION__, pmeta_msg->code, pmeta_msg->len);
+        return;
+    }
+}
+#endif
+
+/***************************************************************************
+**
+** Function         cleanup
+**
+** Description      Closes the AVRC interface
+**
+** Returns          void
+**
+***************************************************************************/
+static void cleanup()
+{
+    BTIF_TRACE_EVENT("## %s ##", __FUNCTION__);
+    close_uinput();
+    if (bt_rc_callbacks)
+    {
+        bt_rc_callbacks = NULL;
+    }
+    alarm_free(btif_rc_cb.rc_play_status_timer);
+    memset(&btif_rc_cb, 0, sizeof(btif_rc_cb_t));
+    lbl_destroy();
+    BTIF_TRACE_EVENT("## %s ## completed", __FUNCTION__);
+}
+
+/***************************************************************************
+**
+** Function         cleanup_ctrl
+**
+** Description      Closes the AVRC Controller interface
+**
+** Returns          void
+**
+***************************************************************************/
+static void cleanup_ctrl()
+{
+    BTIF_TRACE_EVENT("## %s ##", __FUNCTION__);
+
+    if (bt_rc_ctrl_callbacks)
+    {
+        bt_rc_ctrl_callbacks = NULL;
+    }
+    alarm_free(btif_rc_cb.rc_play_status_timer);
+    memset(&btif_rc_cb, 0, sizeof(btif_rc_cb_t));
+    lbl_destroy();
+    BTIF_TRACE_EVENT("## %s ## completed", __FUNCTION__);
+}
+
+/***************************************************************************
+**
+** Function         getcapabilities_cmd
+**
+** Description      GetCapabilties from Remote(Company_ID, Events_Supported)
+**
+** Returns          void
+**
+***************************************************************************/
+static bt_status_t getcapabilities_cmd (uint8_t cap_id)
+{
+    tAVRC_STS status = BT_STATUS_UNSUPPORTED;
+    rc_transaction_t *p_transaction = NULL;
+#if (AVRC_CTLR_INCLUDED == TRUE)
+    BTIF_TRACE_DEBUG("%s: cap_id %d", __FUNCTION__, cap_id);
+    CHECK_RC_CONNECTED
+    bt_status_t tran_status=get_transaction(&p_transaction);
+    if (BT_STATUS_SUCCESS != tran_status)
+        return BT_STATUS_FAIL;
+
+     tAVRC_COMMAND avrc_cmd = {0};
+     BT_HDR *p_msg = NULL;
+     avrc_cmd.get_caps.opcode = AVRC_OP_VENDOR;
+     avrc_cmd.get_caps.capability_id = cap_id;
+     avrc_cmd.get_caps.pdu = AVRC_PDU_GET_CAPABILITIES;
+     avrc_cmd.get_caps.status = AVRC_STS_NO_ERROR;
+     status = AVRC_BldCommand(&avrc_cmd, &p_msg);
+     if ((status == AVRC_STS_NO_ERROR)&&(p_msg != NULL))
+     {
+         UINT8* data_start = (UINT8*)(p_msg + 1) + p_msg->offset;
+         BTIF_TRACE_DEBUG("%s msgreq being sent out with label %d",
+                            __FUNCTION__,p_transaction->lbl);
+         BTA_AvVendorCmd(btif_rc_cb.rc_handle,p_transaction->lbl,AVRC_CMD_STATUS,
+                                                          data_start, p_msg->len);
+         status =  BT_STATUS_SUCCESS;
+         start_status_command_timer (AVRC_PDU_GET_CAPABILITIES, p_transaction);
+     }
+     else
+     {
+         BTIF_TRACE_ERROR("%s: failed to build command. status: 0x%02x",
+                             __FUNCTION__, status);
+     }
+     osi_free(p_msg);
+#else
+    BTIF_TRACE_DEBUG("%s: feature not enabled", __FUNCTION__);
+#endif
+    return status;
+}
+
+/***************************************************************************
+**
+** Function         list_player_app_setting_attrib_cmd
+**
+** Description      Get supported List Player Attributes
+**
+** Returns          void
+**
+***************************************************************************/
+static bt_status_t list_player_app_setting_attrib_cmd(void)
+{
+    tAVRC_STS status = BT_STATUS_UNSUPPORTED;
+    rc_transaction_t *p_transaction = NULL;
+#if (AVRC_CTLR_INCLUDED == TRUE)
+    BTIF_TRACE_DEBUG("%s: ", __FUNCTION__);
+    CHECK_RC_CONNECTED
+    bt_status_t tran_status=get_transaction(&p_transaction);
+    if (BT_STATUS_SUCCESS != tran_status)
+        return BT_STATUS_FAIL;
+
+     tAVRC_COMMAND avrc_cmd = {0};
+     BT_HDR *p_msg = NULL;
+     avrc_cmd.list_app_attr.opcode = AVRC_OP_VENDOR;
+     avrc_cmd.list_app_attr.pdu = AVRC_PDU_LIST_PLAYER_APP_ATTR;
+     avrc_cmd.list_app_attr.status = AVRC_STS_NO_ERROR;
+     status = AVRC_BldCommand(&avrc_cmd, &p_msg);
+     if ((status == AVRC_STS_NO_ERROR)&&(p_msg != NULL))
+     {
+         UINT8* data_start = (UINT8*)(p_msg + 1) + p_msg->offset;
+         BTIF_TRACE_DEBUG("%s msgreq being sent out with label %d",
+                            __FUNCTION__,p_transaction->lbl);
+         BTA_AvVendorCmd(btif_rc_cb.rc_handle,p_transaction->lbl,AVRC_CMD_STATUS,
+                                                          data_start, p_msg->len);
+         status =  BT_STATUS_SUCCESS;
+         start_status_command_timer (AVRC_PDU_LIST_PLAYER_APP_ATTR, p_transaction);
+     }
+     else
+     {
+
+         BTIF_TRACE_ERROR("%s: failed to build command. status: 0x%02x",
+                            __FUNCTION__, status);
+     }
+     osi_free(p_msg);
+#else
+    BTIF_TRACE_DEBUG("%s: feature not enabled", __FUNCTION__);
+#endif
+    return status;
+}
+
+/***************************************************************************
+**
+** Function         list_player_app_setting_value_cmd
+**
+** Description      Get values of supported Player Attributes
+**
+** Returns          void
+**
+***************************************************************************/
+static bt_status_t list_player_app_setting_value_cmd(uint8_t attrib_id)
+{
+    tAVRC_STS status = BT_STATUS_UNSUPPORTED;
+    rc_transaction_t *p_transaction=NULL;
+#if (AVRC_CTLR_INCLUDED == TRUE)
+    BTIF_TRACE_DEBUG("%s: attrib_id %d", __FUNCTION__, attrib_id);
+    CHECK_RC_CONNECTED
+    bt_status_t tran_status=get_transaction(&p_transaction);
+    if (BT_STATUS_SUCCESS != tran_status)
+        return BT_STATUS_FAIL;
+
+     tAVRC_COMMAND avrc_cmd = {0};
+     BT_HDR *p_msg = NULL;
+     avrc_cmd.list_app_values.attr_id = attrib_id;
+     avrc_cmd.list_app_values.opcode = AVRC_OP_VENDOR;
+     avrc_cmd.list_app_values.pdu = AVRC_PDU_LIST_PLAYER_APP_VALUES;
+     avrc_cmd.list_app_values.status = AVRC_STS_NO_ERROR;
+     status = AVRC_BldCommand(&avrc_cmd, &p_msg);
+     if ((status == AVRC_STS_NO_ERROR) && (p_msg != NULL))
+     {
+         UINT8* data_start = (UINT8*)(p_msg + 1) + p_msg->offset;
+         BTIF_TRACE_DEBUG("%s msgreq being sent out with label %d",
+                            __FUNCTION__,p_transaction->lbl);
+         BTA_AvVendorCmd(btif_rc_cb.rc_handle,p_transaction->lbl,AVRC_CMD_STATUS,
+                               data_start, p_msg->len);
+         status =  BT_STATUS_SUCCESS;
+         start_status_command_timer (AVRC_PDU_LIST_PLAYER_APP_VALUES, p_transaction);
+     }
+     else
+     {
+         BTIF_TRACE_ERROR("%s: failed to build command. status: 0x%02x", __FUNCTION__, status);
+     }
+     osi_free(p_msg);
+#else
+    BTIF_TRACE_DEBUG("%s: feature not enabled", __FUNCTION__);
+#endif
+    return status;
+}
+
+/***************************************************************************
+**
+** Function         get_player_app_setting_cmd
+**
+** Description      Get current values of Player Attributes
+**
+** Returns          void
+**
+***************************************************************************/
+static bt_status_t get_player_app_setting_cmd(uint8_t num_attrib, uint8_t* attrib_ids)
+{
+    tAVRC_STS status = BT_STATUS_UNSUPPORTED;
+    rc_transaction_t *p_transaction = NULL;
+    int count  = 0;
+#if (AVRC_CTLR_INCLUDED == TRUE)
+    BTIF_TRACE_DEBUG("%s: num attrib_id %d", __FUNCTION__, num_attrib);
+    CHECK_RC_CONNECTED
+    bt_status_t tran_status=get_transaction(&p_transaction);
+    if (BT_STATUS_SUCCESS != tran_status)
+        return BT_STATUS_FAIL;
+
+     tAVRC_COMMAND avrc_cmd = {0};
+     BT_HDR *p_msg = NULL;
+     avrc_cmd.get_cur_app_val.opcode = AVRC_OP_VENDOR;
+     avrc_cmd.get_cur_app_val.status = AVRC_STS_NO_ERROR;
+     avrc_cmd.get_cur_app_val.num_attr = num_attrib;
+     avrc_cmd.get_cur_app_val.pdu = AVRC_PDU_GET_CUR_PLAYER_APP_VALUE;
+
+     for (count = 0; count < num_attrib; count++)
+     {
+         avrc_cmd.get_cur_app_val.attrs[count] = attrib_ids[count];
+     }
+     status = AVRC_BldCommand(&avrc_cmd, &p_msg);
+     if ((status == AVRC_STS_NO_ERROR) && (p_msg != NULL))
+     {
+         UINT8* data_start = (UINT8*)(p_msg + 1) + p_msg->offset;
+         BTIF_TRACE_DEBUG("%s msgreq being sent out with label %d",
+                            __FUNCTION__,p_transaction->lbl);
+         BTA_AvVendorCmd(btif_rc_cb.rc_handle,p_transaction->lbl,AVRC_CMD_STATUS,
+                          data_start, p_msg->len);
+         status =  BT_STATUS_SUCCESS;
+         start_status_command_timer (AVRC_PDU_GET_CUR_PLAYER_APP_VALUE, p_transaction);
+     }
+     else
+     {
+         BTIF_TRACE_ERROR("%s: failed to build command. status: 0x%02x",
+                            __FUNCTION__, status);
+     }
+     osi_free(p_msg);
+#else
+    BTIF_TRACE_DEBUG("%s: feature not enabled", __FUNCTION__);
+#endif
+    return status;
+}
+
+/***************************************************************************
+**
+** Function         change_player_app_setting
+**
+** Description      Set current values of Player Attributes
+**
+** Returns          void
+**
+***************************************************************************/
+static bt_status_t change_player_app_setting(bt_bdaddr_t *bd_addr, uint8_t num_attrib, uint8_t* attrib_ids, uint8_t* attrib_vals)
+{
+    tAVRC_STS status = BT_STATUS_UNSUPPORTED;
+    rc_transaction_t *p_transaction = NULL;
+    int count  = 0;
+#if (AVRC_CTLR_INCLUDED == TRUE)
+    BTIF_TRACE_DEBUG("%s: num attrib_id %d", __FUNCTION__, num_attrib);
+    CHECK_RC_CONNECTED
+    bt_status_t tran_status=get_transaction(&p_transaction);
+    if (BT_STATUS_SUCCESS != tran_status)
+        return BT_STATUS_FAIL;
+
+     tAVRC_COMMAND avrc_cmd = {0};
+     BT_HDR *p_msg = NULL;
+     avrc_cmd.set_app_val.opcode = AVRC_OP_VENDOR;
+     avrc_cmd.set_app_val.status = AVRC_STS_NO_ERROR;
+     avrc_cmd.set_app_val.num_val = num_attrib;
+     avrc_cmd.set_app_val.pdu = AVRC_PDU_SET_PLAYER_APP_VALUE;
+     avrc_cmd.set_app_val.p_vals =
+           (tAVRC_APP_SETTING *)osi_malloc(sizeof(tAVRC_APP_SETTING) * num_attrib);
+     for (count = 0; count < num_attrib; count++)
+     {
+         avrc_cmd.set_app_val.p_vals[count].attr_id = attrib_ids[count];
+         avrc_cmd.set_app_val.p_vals[count].attr_val = attrib_vals[count];
+     }
+     status = AVRC_BldCommand(&avrc_cmd, &p_msg);
+     if ((status == AVRC_STS_NO_ERROR) && (p_msg != NULL))
+     {
+         UINT8* data_start = (UINT8*)(p_msg + 1) + p_msg->offset;
+         BTIF_TRACE_DEBUG("%s msgreq being sent out with label %d",
+                            __FUNCTION__,p_transaction->lbl);
+         BTA_AvVendorCmd(btif_rc_cb.rc_handle,p_transaction->lbl,AVRC_CMD_CTRL,
+                              data_start, p_msg->len);
+         status =  BT_STATUS_SUCCESS;
+         start_control_command_timer (AVRC_PDU_SET_PLAYER_APP_VALUE, p_transaction);
+     }
+     else
+     {
+         BTIF_TRACE_ERROR("%s: failed to build command. status: 0x%02x",
+                            __FUNCTION__, status);
+     }
+     osi_free(p_msg);
+     osi_free_and_reset((void **)&avrc_cmd.set_app_val.p_vals);
+#else
+    BTIF_TRACE_DEBUG("%s: feature not enabled", __FUNCTION__);
+#endif
+    return status;
+}
+
+/***************************************************************************
+**
+** Function         get_player_app_setting_attr_text_cmd
+**
+** Description      Get text description for app attribute
+**
+** Returns          void
+**
+***************************************************************************/
+static bt_status_t get_player_app_setting_attr_text_cmd (UINT8 *attrs, UINT8 num_attrs)
+{
+    tAVRC_STS status = BT_STATUS_UNSUPPORTED;
+    rc_transaction_t *p_transaction = NULL;
+    int count  = 0;
+#if (AVRC_CTLR_INCLUDED == TRUE)
+    tAVRC_COMMAND avrc_cmd = {0};
+    BT_HDR *p_msg = NULL;
+    bt_status_t tran_status;
+    CHECK_RC_CONNECTED
+
+    BTIF_TRACE_DEBUG("%s: num attrs %d", __FUNCTION__, num_attrs);
+
+    tran_status = get_transaction(&p_transaction);
+    if (BT_STATUS_SUCCESS != tran_status)
+        return BT_STATUS_FAIL;
+
+    avrc_cmd.pdu = AVRC_PDU_GET_PLAYER_APP_ATTR_TEXT;
+    avrc_cmd.get_app_attr_txt.opcode = AVRC_OP_VENDOR;
+    avrc_cmd.get_app_attr_txt.num_attr = num_attrs;
+
+    for (count = 0; count < num_attrs; count++)
+    {
+        avrc_cmd.get_app_attr_txt.attrs[count] = attrs[count];
+    }
+    status = AVRC_BldCommand(&avrc_cmd, &p_msg);
+    if (status == AVRC_STS_NO_ERROR)
+    {
+        UINT8* data_start = (UINT8*)(p_msg + 1) + p_msg->offset;
+                BTIF_TRACE_DEBUG("%s msgreq being sent out with label %d",
+                __FUNCTION__, p_transaction->lbl);
+        BTA_AvVendorCmd(btif_rc_cb.rc_handle, p_transaction->lbl,
+                AVRC_CMD_STATUS, data_start, p_msg->len);
+        osi_free(p_msg);
+        status =  BT_STATUS_SUCCESS;
+        start_status_command_timer (AVRC_PDU_GET_PLAYER_APP_ATTR_TEXT, p_transaction);
+    }
+    else
+    {
+        BTIF_TRACE_ERROR("%s: failed to build command. status: 0x%02x", __FUNCTION__, status);
+    }
+    osi_free(p_msg);
+#else
+    BTIF_TRACE_DEBUG("%s: feature not enabled", __FUNCTION__);
+#endif
+    return status;
+}
+
+/***************************************************************************
+**
+** Function         get_player_app_setting_val_text_cmd
+**
+** Description      Get text description for app attribute values
+**
+** Returns          void
+**
+***************************************************************************/
+static bt_status_t get_player_app_setting_value_text_cmd (UINT8 *vals, UINT8 num_vals)
+{
+    tAVRC_STS status = BT_STATUS_UNSUPPORTED;
+    rc_transaction_t *p_transaction = NULL;
+    int count  = 0;
+#if (AVRC_CTLR_INCLUDED == TRUE)
+    tAVRC_COMMAND avrc_cmd = {0};
+    BT_HDR *p_msg = NULL;
+    bt_status_t tran_status;
+    CHECK_RC_CONNECTED
+
+    BTIF_TRACE_DEBUG("%s: num_vals %d", __FUNCTION__, num_vals);
+
+    tran_status = get_transaction(&p_transaction);
+    if (BT_STATUS_SUCCESS != tran_status)
+        return BT_STATUS_FAIL;
+
+    avrc_cmd.pdu = AVRC_PDU_GET_PLAYER_APP_VALUE_TEXT;
+    avrc_cmd.get_app_val_txt.opcode = AVRC_OP_VENDOR;
+    avrc_cmd.get_app_val_txt.num_val = num_vals;
+
+    for (count = 0; count < num_vals; count++)
+    {
+        avrc_cmd.get_app_val_txt.vals[count] = vals[count];
+    }
+    status = AVRC_BldCommand(&avrc_cmd, &p_msg);
+    if (status == AVRC_STS_NO_ERROR)
+    {
+        UINT8* data_start = (UINT8*)(p_msg + 1) + p_msg->offset;
+        BTIF_TRACE_DEBUG("%s msgreq being sent out with label %d",
+                         __FUNCTION__, p_transaction->lbl);
+        if (p_msg != NULL)
+        {
+            BTA_AvVendorCmd(btif_rc_cb.rc_handle, p_transaction->lbl,
+                    AVRC_CMD_STATUS, data_start, p_msg->len);
+            status =  BT_STATUS_SUCCESS;
+            start_status_command_timer (AVRC_PDU_GET_PLAYER_APP_VALUE_TEXT, p_transaction);
+        }
+    }
+    else
+    {
+        BTIF_TRACE_ERROR("%s: failed to build command. status: 0x%02x",
+                __FUNCTION__, status);
+    }
+    osi_free(p_msg);
+#else
+    BTIF_TRACE_DEBUG("%s: feature not enabled", __FUNCTION__);
+#endif
+    return status;
+}
+
+/***************************************************************************
+**
+** Function         register_notification_cmd
+**
+** Description      Send Command to register for a Notification ID
+**
+** Returns          void
+**
+***************************************************************************/
+static bt_status_t register_notification_cmd (UINT8 label, UINT8 event_id, UINT32 event_value)
+{
+
+    tAVRC_STS status = BT_STATUS_UNSUPPORTED;
+#if (AVRC_CTLR_INCLUDED == TRUE)
+    tAVRC_COMMAND avrc_cmd = {0};
+    BT_HDR *p_msg = NULL;
+    CHECK_RC_CONNECTED
+
+
+    BTIF_TRACE_DEBUG("%s: event_id %d  event_value", __FUNCTION__, event_id, event_value);
+
+    avrc_cmd.reg_notif.opcode = AVRC_OP_VENDOR;
+    avrc_cmd.reg_notif.status = AVRC_STS_NO_ERROR;
+    avrc_cmd.reg_notif.event_id = event_id;
+    avrc_cmd.reg_notif.pdu = AVRC_PDU_REGISTER_NOTIFICATION;
+    avrc_cmd.reg_notif.param = event_value;
+    status = AVRC_BldCommand(&avrc_cmd, &p_msg);
+    if (status == AVRC_STS_NO_ERROR)
+    {
+        UINT8* data_start = (UINT8*)(p_msg + 1) + p_msg->offset;
+        BTIF_TRACE_DEBUG("%s msgreq being sent out with label %d",
+                __FUNCTION__, label);
+        if (p_msg != NULL)
+        {
+            BTA_AvVendorCmd(btif_rc_cb.rc_handle, label, AVRC_CMD_NOTIF,
+                    data_start, p_msg->len);
+            status =  BT_STATUS_SUCCESS;
+        }
+    }
+    else
+    {
+         BTIF_TRACE_ERROR("%s: failed to build command. status: 0x%02x",
+                            __FUNCTION__, status);
+    }
+    osi_free(p_msg);
+#else
+    BTIF_TRACE_DEBUG("%s: feature not enabled", __FUNCTION__);
+#endif
+    return status;
+}
+
+/***************************************************************************
+**
+** Function         get_element_attribute_cmd
+**
+** Description      Get Element Attribute for  attributeIds
+**
+** Returns          void
+**
+***************************************************************************/
+static bt_status_t get_element_attribute_cmd (uint8_t num_attribute, uint32_t *p_attr_ids)
+{
+    tAVRC_STS status = BT_STATUS_UNSUPPORTED;
+    rc_transaction_t *p_transaction=NULL;
+    int count  = 0;
+#if (AVRC_CTLR_INCLUDED == TRUE)
+    tAVRC_COMMAND avrc_cmd = {0};
+    BT_HDR *p_msg = NULL;
+    bt_status_t tran_status;
+    CHECK_RC_CONNECTED
+
+    BTIF_TRACE_DEBUG("%s: num_attribute  %d attribute_id %d",
+                   __FUNCTION__, num_attribute, p_attr_ids[0]);
+
+    tran_status = get_transaction(&p_transaction);
+    if (BT_STATUS_SUCCESS != tran_status)
+        return BT_STATUS_FAIL;
+
+    avrc_cmd.get_elem_attrs.opcode = AVRC_OP_VENDOR;
+    avrc_cmd.get_elem_attrs.status = AVRC_STS_NO_ERROR;
+    avrc_cmd.get_elem_attrs.num_attr = num_attribute;
+    avrc_cmd.get_elem_attrs.pdu = AVRC_PDU_GET_ELEMENT_ATTR;
+    for (count = 0; count < num_attribute; count++)
+    {
+        avrc_cmd.get_elem_attrs.attrs[count] = p_attr_ids[count];
+    }
+
+    status = AVRC_BldCommand(&avrc_cmd, &p_msg);
+    if (status == AVRC_STS_NO_ERROR)
+    {
+        UINT8* data_start = (UINT8*)(p_msg + 1) + p_msg->offset;
+        BTIF_TRACE_DEBUG("%s msgreq being sent out with label %d",
+                __FUNCTION__, p_transaction->lbl);
+        if (p_msg != NULL)
+        {
+            BTA_AvVendorCmd(btif_rc_cb.rc_handle, p_transaction->lbl,
+                    AVRC_CMD_STATUS, data_start, p_msg->len);
+            status =  BT_STATUS_SUCCESS;
+            start_status_command_timer (AVRC_PDU_GET_ELEMENT_ATTR,
+                    p_transaction);
+        }
+    }
+    else
+    {
+         BTIF_TRACE_ERROR("%s: failed to build command. status: 0x%02x",
+                            __FUNCTION__, status);
+    }
+    osi_free(p_msg);
+#else
+    BTIF_TRACE_DEBUG("%s: feature not enabled", __FUNCTION__);
+#endif
+    return status;
+}
+
+/***************************************************************************
+**
+** Function         get_play_status_cmd
+**
+** Description      Get Element Attribute for  attributeIds
+**
+** Returns          void
+**
+***************************************************************************/
+static bt_status_t get_play_status_cmd(void)
+{
+    tAVRC_STS status = BT_STATUS_UNSUPPORTED;
+    rc_transaction_t *p_transaction = NULL;
+#if (AVRC_CTLR_INCLUDED == TRUE)
+    tAVRC_COMMAND avrc_cmd = {0};
+    BT_HDR *p_msg = NULL;
+    bt_status_t tran_status;
+    CHECK_RC_CONNECTED
+
+    BTIF_TRACE_DEBUG("%s: ", __FUNCTION__);
+    tran_status = get_transaction(&p_transaction);
+    if (BT_STATUS_SUCCESS != tran_status)
+        return BT_STATUS_FAIL;
+
+    avrc_cmd.get_play_status.opcode = AVRC_OP_VENDOR;
+    avrc_cmd.get_play_status.pdu = AVRC_PDU_GET_PLAY_STATUS;
+    avrc_cmd.get_play_status.status = AVRC_STS_NO_ERROR;
+    status = AVRC_BldCommand(&avrc_cmd, &p_msg);
+    if (status == AVRC_STS_NO_ERROR)
+    {
+        UINT8* data_start = (UINT8*)(p_msg + 1) + p_msg->offset;
+        BTIF_TRACE_DEBUG("%s msgreq being sent out with label %d",
+                __FUNCTION__, p_transaction->lbl);
+        if (p_msg != NULL)
+        {
+            BTA_AvVendorCmd(btif_rc_cb.rc_handle,p_transaction->lbl,
+                    AVRC_CMD_STATUS, data_start, p_msg->len);
+            status =  BT_STATUS_SUCCESS;
+            start_status_command_timer (AVRC_PDU_GET_PLAY_STATUS, p_transaction);
+        }
+    }
+    else
+    {
+         BTIF_TRACE_ERROR("%s: failed to build command. status: 0x%02x",
+                            __FUNCTION__, status);
+    }
+    osi_free(p_msg);
+#else
+    BTIF_TRACE_DEBUG("%s: feature not enabled", __FUNCTION__);
+#endif
+    return status;
+
+}
+
+/***************************************************************************
+**
+** Function         set_volume_rsp
+**
+** Description      Rsp for SetAbsoluteVolume Command
+**
+** Returns          void
+**
+***************************************************************************/
+static bt_status_t set_volume_rsp(bt_bdaddr_t *bd_addr, uint8_t abs_vol, uint8_t label)
+{
+    tAVRC_STS status = BT_STATUS_UNSUPPORTED;
+#if (AVRC_CTLR_INCLUDED == TRUE)
+    tAVRC_RESPONSE avrc_rsp;
+    BT_HDR *p_msg = NULL;
+    CHECK_RC_CONNECTED
+
+    BTIF_TRACE_DEBUG("%s: abs_vol %d", __FUNCTION__, abs_vol);
+
+    avrc_rsp.volume.opcode = AVRC_OP_VENDOR;
+    avrc_rsp.volume.pdu = AVRC_PDU_SET_ABSOLUTE_VOLUME;
+    avrc_rsp.volume.status = AVRC_STS_NO_ERROR;
+    avrc_rsp.volume.volume = abs_vol;
+    status = AVRC_BldResponse(btif_rc_cb.rc_handle, &avrc_rsp, &p_msg);
+    if (status == AVRC_STS_NO_ERROR)
+    {
+        UINT8* data_start = (UINT8*)(p_msg + 1) + p_msg->offset;
+        BTIF_TRACE_DEBUG("%s msgreq being sent out with label %d",
+                __FUNCTION__, btif_rc_cb.rc_vol_label);
+        if (p_msg != NULL)
+        {
+            BTA_AvVendorRsp(btif_rc_cb.rc_handle, label,
+                    BTA_AV_RSP_ACCEPT, data_start, p_msg->len, 0);
+            status =  BT_STATUS_SUCCESS;
+        }
+    }
+    else
+    {
+         BTIF_TRACE_ERROR("%s: failed to build command. status: 0x%02x",
+                            __FUNCTION__, status);
+    }
+    osi_free(p_msg);
+#else
+    BTIF_TRACE_DEBUG("%s: feature not enabled", __FUNCTION__);
+#endif
+    return status;
+}
+
+/***************************************************************************
+**
+** Function         send_register_abs_vol_rsp
+**
+** Description      Rsp for Notification of Absolute Volume
+**
+** Returns          void
+**
+***************************************************************************/
+static bt_status_t volume_change_notification_rsp(bt_bdaddr_t *bd_addr, btrc_notification_type_t rsp_type,
+            uint8_t abs_vol, uint8_t label)
+{
+    tAVRC_STS status = BT_STATUS_UNSUPPORTED;
+    tAVRC_RESPONSE avrc_rsp;
+    BT_HDR *p_msg = NULL;
+#if (AVRC_CTLR_INCLUDED == TRUE)
+    BTIF_TRACE_DEBUG("%s: rsp_type  %d abs_vol %d", __func__, rsp_type, abs_vol);
+    CHECK_RC_CONNECTED
+
+    avrc_rsp.reg_notif.opcode = AVRC_OP_VENDOR;
+    avrc_rsp.reg_notif.pdu = AVRC_PDU_REGISTER_NOTIFICATION;
+    avrc_rsp.reg_notif.status = AVRC_STS_NO_ERROR;
+    avrc_rsp.reg_notif.param.volume = abs_vol;
+    avrc_rsp.reg_notif.event_id = AVRC_EVT_VOLUME_CHANGE;
+
+    status = AVRC_BldResponse(btif_rc_cb.rc_handle, &avrc_rsp, &p_msg);
+    if (status == AVRC_STS_NO_ERROR) {
+        BTIF_TRACE_DEBUG("%s msgreq being sent out with label %d",
+                         __func__, label);
+        UINT8* data_start = (UINT8*)(p_msg + 1) + p_msg->offset;
+        BTA_AvVendorRsp(btif_rc_cb.rc_handle, label,
+                        (rsp_type == BTRC_NOTIFICATION_TYPE_INTERIM) ?
+                            AVRC_RSP_INTERIM : AVRC_RSP_CHANGED,
+                        data_start, p_msg->len, 0);
+        status = BT_STATUS_SUCCESS;
+    } else {
+        BTIF_TRACE_ERROR("%s: failed to build command. status: 0x%02x",
+                         __func__, status);
+    }
+    osi_free(p_msg);
+
+#else
+    BTIF_TRACE_DEBUG("%s: feature not enabled", __func__);
+#endif
+    return status;
+}
+
+/***************************************************************************
+**
+** Function         send_groupnavigation_cmd
+**
+** Description      Send Pass-Through command
+**
+** Returns          void
+**
+***************************************************************************/
+static bt_status_t send_groupnavigation_cmd(bt_bdaddr_t *bd_addr, uint8_t key_code,
+                                            uint8_t key_state)
+{
+    tAVRC_STS status = BT_STATUS_UNSUPPORTED;
+#if (AVRC_CTLR_INCLUDED == TRUE)
+    rc_transaction_t *p_transaction=NULL;
+    BTIF_TRACE_DEBUG("%s: key-code: %d, key-state: %d", __FUNCTION__,
+                                                    key_code, key_state);
+    CHECK_RC_CONNECTED
+    if (btif_rc_cb.rc_features & BTA_AV_FEAT_RCTG)
+    {
+        bt_status_t tran_status = get_transaction(&p_transaction);
+        if ((BT_STATUS_SUCCESS == tran_status) && (NULL != p_transaction)) {
+             UINT8 buffer[AVRC_PASS_THRU_GROUP_LEN] = {0};
+             UINT8* start = buffer;
+             UINT24_TO_BE_STREAM(start, AVRC_CO_METADATA);
+             *(start)++ = 0;
+             UINT8_TO_BE_STREAM(start, key_code);
+             BTA_AvRemoteVendorUniqueCmd(btif_rc_cb.rc_handle,
+                                         p_transaction->lbl,
+                                         (tBTA_AV_STATE)key_state, buffer,
+                                         AVRC_PASS_THRU_GROUP_LEN);
+             status =  BT_STATUS_SUCCESS;
+             BTIF_TRACE_DEBUG("%s: succesfully sent group_navigation command to BTA",
+                              __FUNCTION__);
+        }
+        else
+        {
+            status =  BT_STATUS_FAIL;
+            BTIF_TRACE_DEBUG("%s: error in fetching transaction", __FUNCTION__);
+        }
+    }
+    else
+    {
+        status =  BT_STATUS_FAIL;
+        BTIF_TRACE_DEBUG("%s: feature not supported", __FUNCTION__);
+    }
+#else
+    BTIF_TRACE_DEBUG("%s: feature not enabled", __FUNCTION__);
+#endif
+    return status;
+}
+
+/***************************************************************************
+**
+** Function         send_passthrough_cmd
+**
+** Description      Send Pass-Through command
+**
+** Returns          void
+**
+***************************************************************************/
+static bt_status_t send_passthrough_cmd(bt_bdaddr_t *bd_addr, uint8_t key_code, uint8_t key_state)
+{
+    tAVRC_STS status = BT_STATUS_UNSUPPORTED;
+#if (AVRC_CTLR_INCLUDED == TRUE)
+    CHECK_RC_CONNECTED
+    rc_transaction_t *p_transaction=NULL;
+    BTIF_TRACE_DEBUG("%s: key-code: %d, key-state: %d", __FUNCTION__,
+                                                    key_code, key_state);
+    if (btif_rc_cb.rc_features & BTA_AV_FEAT_RCTG)
+    {
+        bt_status_t tran_status = get_transaction(&p_transaction);
+        if (BT_STATUS_SUCCESS == tran_status && NULL != p_transaction)
+        {
+            BTA_AvRemoteCmd(btif_rc_cb.rc_handle, p_transaction->lbl,
+                (tBTA_AV_RC)key_code, (tBTA_AV_STATE)key_state);
+            status =  BT_STATUS_SUCCESS;
+            BTIF_TRACE_DEBUG("%s: succesfully sent passthrough command to BTA", __FUNCTION__);
+        }
+        else
+        {
+            status =  BT_STATUS_FAIL;
+            BTIF_TRACE_DEBUG("%s: error in fetching transaction", __FUNCTION__);
+        }
+    }
+    else
+    {
+        status =  BT_STATUS_FAIL;
+        BTIF_TRACE_DEBUG("%s: feature not supported", __FUNCTION__);
+    }
+#else
+    BTIF_TRACE_DEBUG("%s: feature not enabled", __FUNCTION__);
+#endif
+    return status;
+}
+#ifdef BLUETOOTH_RTK
+static const btrc_interface_t bt_rc_interface = {
+    .size = sizeof(bt_rc_interface),
+    .init = init,
+    .get_play_status_rsp = get_play_status_rsp,
+    .list_player_app_attr_rsp = NULL, /* list_player_app_attr_rsp */
+    .list_player_app_value_rsp = NULL, /* list_player_app_value_rsp */
+    .get_player_app_value_rsp = NULL, /* get_player_app_value_rsp */
+    .get_player_app_attr_text_rsp = NULL, /* get_player_app_attr_text_rsp */
+    .get_player_app_value_text_rsp = NULL, /* get_player_app_value_text_rsp */
+    .get_element_attr_rsp = get_element_attr_rsp,
+    .set_player_app_value_rsp = NULL, /* set_player_app_value_rsp */
+    .register_notification_rsp = register_notification_rsp,
+    .set_volume = set_volume,
+    .cleanup = cleanup,
+};
+#else
+static const btrc_interface_t bt_rc_interface = {
+    sizeof(bt_rc_interface),
+    init,
+    get_play_status_rsp,
+    NULL, /* list_player_app_attr_rsp */
+    NULL, /* list_player_app_value_rsp */
+    NULL, /* get_player_app_value_rsp */
+    NULL, /* get_player_app_attr_text_rsp */
+    NULL, /* get_player_app_value_text_rsp */
+    get_element_attr_rsp,
+    NULL, /* set_player_app_value_rsp */
+    register_notification_rsp,
+    set_volume,
+    cleanup,
+};
+#endif
+#ifdef BLUETOOTH_RTK
+static const btrc_ctrl_interface_t bt_rc_ctrl_interface = {
+    .size = sizeof(bt_rc_ctrl_interface),
+    .init = init_ctrl,
+    .send_pass_through_cmd = send_passthrough_cmd,
+    .send_group_navigation_cmd = send_groupnavigation_cmd,
+    .set_player_app_setting_cmd = change_player_app_setting,
+    .set_volume_rsp = set_volume_rsp,
+    .register_abs_vol_rsp = volume_change_notification_rsp,
+    .cleanup = cleanup_ctrl,
+};
+#else
+static const btrc_ctrl_interface_t bt_rc_ctrl_interface = {
+    sizeof(bt_rc_ctrl_interface),
+    init_ctrl,
+    send_passthrough_cmd,
+    send_groupnavigation_cmd,
+    change_player_app_setting,
+    set_volume_rsp,
+    volume_change_notification_rsp,
+    cleanup_ctrl,
+};
+#endif
+/*******************************************************************************
+**
+** Function         btif_rc_get_interface
+**
+** Description      Get the AVRCP Target callback interface
+**
+** Returns          btav_interface_t
+**
+*******************************************************************************/
+const btrc_interface_t *btif_rc_get_interface(void)
+{
+    BTIF_TRACE_EVENT("%s", __FUNCTION__);
+    return &bt_rc_interface;
+}
+
+/*******************************************************************************
+**
+** Function         btif_rc_ctrl_get_interface
+**
+** Description      Get the AVRCP Controller callback interface
+**
+** Returns          btav_interface_t
+**
+*******************************************************************************/
+const btrc_ctrl_interface_t *btif_rc_ctrl_get_interface(void)
+{
+    BTIF_TRACE_EVENT("%s", __FUNCTION__);
+    return &bt_rc_ctrl_interface;
+}
+
+/*******************************************************************************
+**      Function         initialize_transaction
+**
+**      Description    Initializes fields of the transaction structure
+**
+**      Returns          void
+*******************************************************************************/
+static void initialize_transaction(int lbl)
+{
+    pthread_mutex_lock(&device.lbllock);
+    if (lbl < MAX_TRANSACTIONS_PER_SESSION) {
+        if (alarm_is_scheduled(device.transaction[lbl].txn_timer)) {
+            clear_cmd_timeout(lbl);
+        }
+        device.transaction[lbl].lbl = lbl;
+        device.transaction[lbl].in_use=FALSE;
+        device.transaction[lbl].handle=0;
+    }
+    pthread_mutex_unlock(&device.lbllock);
+}
+
+/*******************************************************************************
+**      Function         lbl_init
+**
+**      Description    Initializes label structures and mutexes.
+**
+**      Returns         void
+*******************************************************************************/
+void lbl_init()
+{
+    memset(&device,0,sizeof(rc_device_t));
+    pthread_mutexattr_t attr;
+    pthread_mutexattr_init(&attr);
+    pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
+    pthread_mutex_init(&(device.lbllock), &attr);
+    pthread_mutexattr_destroy(&attr);
+    init_all_transactions();
+}
+
+/*******************************************************************************
+**
+** Function         init_all_transactions
+**
+** Description    Initializes all transactions
+**
+** Returns          void
+*******************************************************************************/
+void init_all_transactions()
+{
+    UINT8 txn_indx=0;
+    for(txn_indx=0; txn_indx < MAX_TRANSACTIONS_PER_SESSION; txn_indx++)
+    {
+        initialize_transaction(txn_indx);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         get_transaction_by_lbl
+**
+** Description    Will return a transaction based on the label. If not inuse
+**                     will return an error.
+**
+** Returns          bt_status_t
+*******************************************************************************/
+rc_transaction_t *get_transaction_by_lbl(UINT8 lbl)
+{
+    rc_transaction_t *transaction = NULL;
+    pthread_mutex_lock(&device.lbllock);
+
+    /* Determine if this is a valid label */
+    if (lbl < MAX_TRANSACTIONS_PER_SESSION)
+    {
+        if (FALSE==device.transaction[lbl].in_use)
+        {
+            transaction = NULL;
+        }
+        else
+        {
+            transaction = &(device.transaction[lbl]);
+            BTIF_TRACE_DEBUG("%s: Got transaction.label: %d",__FUNCTION__,lbl);
+        }
+    }
+
+    pthread_mutex_unlock(&device.lbllock);
+    return transaction;
+}
+
+/*******************************************************************************
+**
+** Function         get_transaction
+**
+** Description    Obtains the transaction details.
+**
+** Returns          bt_status_t
+*******************************************************************************/
+
+bt_status_t  get_transaction(rc_transaction_t **ptransaction)
+{
+    bt_status_t result = BT_STATUS_NOMEM;
+    UINT8 i=0;
+    pthread_mutex_lock(&device.lbllock);
+
+    // Check for unused transactions
+    for (i=0; i<MAX_TRANSACTIONS_PER_SESSION; i++)
+    {
+        if (FALSE==device.transaction[i].in_use)
+        {
+            BTIF_TRACE_DEBUG("%s:Got transaction.label: %d",__FUNCTION__,device.transaction[i].lbl);
+            device.transaction[i].in_use = TRUE;
+            *ptransaction = &(device.transaction[i]);
+            result = BT_STATUS_SUCCESS;
+            break;
+        }
+    }
+
+    pthread_mutex_unlock(&device.lbllock);
+    return result;
+}
+
+/*******************************************************************************
+**
+** Function         release_transaction
+**
+** Description    Will release a transaction for reuse
+**
+** Returns          bt_status_t
+*******************************************************************************/
+void release_transaction(UINT8 lbl)
+{
+    rc_transaction_t *transaction = get_transaction_by_lbl(lbl);
+
+    /* If the transaction is in use... */
+    if (transaction != NULL)
+    {
+        BTIF_TRACE_DEBUG("%s: lbl: %d", __FUNCTION__, lbl);
+        initialize_transaction(lbl);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         lbl_destroy
+**
+** Description    Cleanup of the mutex
+**
+** Returns          void
+*******************************************************************************/
+void lbl_destroy()
+{
+    pthread_mutex_destroy(&(device.lbllock));
+}
+
+/*******************************************************************************
+**      Function       sleep_ms
+**
+**      Description    Sleep the calling thread unconditionally for
+**                     |timeout_ms| milliseconds.
+**
+**      Returns        void
+*******************************************************************************/
+static void sleep_ms(period_ms_t timeout_ms) {
+    struct timespec delay;
+    delay.tv_sec = timeout_ms / 1000;
+    delay.tv_nsec = 1000 * 1000 * (timeout_ms % 1000);
+
+    OSI_NO_INTR(nanosleep(&delay, &delay));
+}
+
+static bool absolute_volume_disabled() {
+    char volume_disabled[PROPERTY_VALUE_MAX] = {0};
+    osi_property_get("persist.bluetooth.disableabsvol", volume_disabled, "false");
+    if (strncmp(volume_disabled, "true", 4) == 0) {
+        BTIF_TRACE_WARNING("%s: Absolute volume disabled by property", __func__);
+        return true;
+    }
+    return false;
+}
diff --git a/rtkbt/code/bt/btif/src/btif_sdp.c b/rtkbt/code/bt/btif/src/btif_sdp.c
new file mode 100755
index 0000000..5865709
--- /dev/null
+++ b/rtkbt/code/bt/btif/src/btif_sdp.c
@@ -0,0 +1,206 @@
+/******************************************************************************
+ *
+ * Copyright (C) 2014 Samsung System LSI
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/************************************************************************************
+ *
+ *  Filename:      btif_sdp.c
+ *  Description:   SDP Bluetooth Interface.
+ *                 Implements the generic message handling and search functionality.
+ *                 References btif_sdp_server.c for SDP record creation.
+ *
+ ***********************************************************************************/
+
+#define LOG_TAG "bt_btif_sdp"
+
+#include <stdlib.h>
+#include <string.h>
+
+#include <hardware/bluetooth.h>
+#include <hardware/bt_sdp.h>
+
+#include "bta_api.h"
+#include "bta_sdp_api.h"
+#include "btif_common.h"
+#include "btif_profile_queue.h"
+#include "btif_util.h"
+
+/*****************************************************************************
+**  Functions implemented in sdp_server.c
+******************************************************************************/
+bt_status_t sdp_server_init();
+void sdp_server_cleanup();
+bt_status_t create_sdp_record(bluetooth_sdp_record *records, int* record_handles);
+bt_status_t remove_sdp_record(int record_handle);
+void on_create_record_event(int handle);
+void on_remove_record_event(int handle);
+
+// Utility functions:
+int get_sdp_records_size(bluetooth_sdp_record* in_record, int count);
+void copy_sdp_records(bluetooth_sdp_record* in_records,
+        bluetooth_sdp_record* out_records, int count);
+
+/*****************************************************************************
+**  Static variables
+******************************************************************************/
+
+static btsdp_callbacks_t *bt_sdp_callbacks = NULL;
+
+static void btif_sdp_search_comp_evt(UINT16 event, char *p_param)
+{
+    tBTA_SDP_SEARCH_COMP *evt_data = (tBTA_SDP_SEARCH_COMP*) p_param;
+    bt_bdaddr_t addr;
+    BTIF_TRACE_DEBUG("%s:  event = %d", __FUNCTION__, event);
+
+    if (event != BTA_SDP_SEARCH_COMP_EVT)
+        return;
+
+    bdcpy(addr.address, evt_data->remote_addr);
+
+    HAL_CBACK(bt_sdp_callbacks, sdp_search_cb, evt_data->status,
+            &addr, (uint8_t*)(evt_data->uuid.uu.uuid128),
+            evt_data->record_count, evt_data->records);
+}
+
+static void sdp_search_comp_copy_cb(UINT16 event, char *p_dest, char *p_src)
+{
+    tBTA_SDP_SEARCH_COMP *p_dest_data =  (tBTA_SDP_SEARCH_COMP *) p_dest;
+    tBTA_SDP_SEARCH_COMP *p_src_data =  (tBTA_SDP_SEARCH_COMP *) p_src;
+
+    if (!p_src)
+        return;
+
+    if (event != BTA_SDP_SEARCH_COMP_EVT)
+        return;
+
+    maybe_non_aligned_memcpy(p_dest_data, p_src_data, sizeof(*p_src_data));
+
+    copy_sdp_records(p_src_data->records, p_dest_data->records, p_src_data->record_count);
+}
+
+static void sdp_dm_cback(tBTA_SDP_EVT event, tBTA_SDP *p_data, void *user_data)
+{
+    switch (event)
+    {
+        case BTA_SDP_SEARCH_COMP_EVT:
+        {
+            int size = sizeof(tBTA_SDP);
+            size += get_sdp_records_size(p_data->sdp_search_comp.records,
+                    p_data->sdp_search_comp.record_count);
+
+            /* need to deep copy the record content */
+            btif_transfer_context(btif_sdp_search_comp_evt, event,
+                                    (char*)p_data, size, sdp_search_comp_copy_cb);
+            break;
+        }
+        case BTA_SDP_CREATE_RECORD_USER_EVT:
+        {
+            on_create_record_event(PTR_TO_INT(user_data));
+            break;
+        }
+        case BTA_SDP_REMOVE_RECORD_USER_EVT:
+        {
+            on_remove_record_event(PTR_TO_INT(user_data));
+            break;
+        }
+        default:
+            break;
+    }
+}
+
+static bt_status_t init(btsdp_callbacks_t* callbacks)
+{
+    BTIF_TRACE_DEBUG("Sdp Search %s", __FUNCTION__);
+
+    bt_sdp_callbacks = callbacks;
+    sdp_server_init();
+
+    btif_enable_service(BTA_SDP_SERVICE_ID);
+
+    return BT_STATUS_SUCCESS;
+}
+
+static bt_status_t deinit()
+{
+    BTIF_TRACE_DEBUG("Sdp Search %s", __FUNCTION__);
+
+    bt_sdp_callbacks = NULL;
+    sdp_server_cleanup();
+    btif_disable_service(BTA_SDP_SERVICE_ID);
+
+    return BT_STATUS_SUCCESS;
+}
+
+static bt_status_t search(bt_bdaddr_t *bd_addr, const uint8_t *uuid)
+{
+    tSDP_UUID sdp_uuid;
+    sdp_uuid.len = 16;
+    memcpy(sdp_uuid.uu.uuid128, uuid, sizeof(sdp_uuid.uu.uuid128));
+
+    BTA_SdpSearch(bd_addr->address, &sdp_uuid);
+
+    return BT_STATUS_SUCCESS;
+}
+#ifdef BLUETOOTH_RTK
+static const btsdp_interface_t sdp_if = {
+    .size = sizeof(btsdp_interface_t),
+    .init = init,
+    .deinit = deinit,
+    .sdp_search = search,
+    .create_sdp_record = create_sdp_record,
+    .remove_sdp_record = remove_sdp_record
+};
+#else
+static const btsdp_interface_t sdp_if = {
+    sizeof(btsdp_interface_t),
+    init,
+    deinit,
+    search,
+    create_sdp_record,
+    remove_sdp_record
+};
+#endif
+const btsdp_interface_t *btif_sdp_get_interface(void)
+{
+    BTIF_TRACE_DEBUG("%s", __FUNCTION__);
+    return &sdp_if;
+}
+
+/*******************************************************************************
+**
+** Function         btif_sdp_execute_service
+**
+** Description      Initializes/Shuts down the service
+**
+** Returns          BT_STATUS_SUCCESS on success, BT_STATUS_FAIL otherwise
+**
+*******************************************************************************/
+bt_status_t btif_sdp_execute_service(BOOLEAN b_enable)
+{
+    BTIF_TRACE_DEBUG("%s enable:%d", __FUNCTION__, b_enable);
+
+     if (b_enable)
+     {
+         BTA_SdpEnable(sdp_dm_cback);
+     }
+     else
+     {
+         /* This is called on BT disable so no need to extra cleanup */
+     }
+     return BT_STATUS_SUCCESS;
+}
+
diff --git a/rtkbt/code/bt/btif/src/btif_sdp_server.c b/rtkbt/code/bt/btif/src/btif_sdp_server.c
new file mode 100755
index 0000000..d02dfa0
--- /dev/null
+++ b/rtkbt/code/bt/btif/src/btif_sdp_server.c
@@ -0,0 +1,778 @@
+/******************************************************************************
+ *
+ * Copyright (C) 2014 Samsung System LSI
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/************************************************************************************
+ *
+ *  Filename:      btif_sdp_server.c
+ *  Description:   SDP server Bluetooth Interface to create and remove SDP records.
+ *                 To be used in combination with the RFCOMM/L2CAP(LE) sockets.
+ *
+ *
+ ***********************************************************************************/
+
+#define LOG_TAG "bt_btif_sdp_server"
+
+#include <pthread.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <hardware/bluetooth.h>
+#include <hardware/bt_sdp.h>
+
+#include "bta_sdp_api.h"
+#include "bta_sys.h"
+#include "btif_common.h"
+#include "btif_sock_util.h"
+#include "btif_util.h"
+#include "osi/include/allocator.h"
+#include "utl.h"
+
+static pthread_mutex_t sdp_lock = PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP;
+
+/**
+ * The need for a state variable have been reduced to two states.
+ * The remaining state control is handled by program flow
+ */
+typedef enum {
+    SDP_RECORD_FREE = 0,
+    SDP_RECORD_ALLOCED,
+} sdp_state_t;
+
+typedef struct {
+  sdp_state_t state;
+  int sdp_handle;
+  bluetooth_sdp_record* record_data;
+} sdp_slot_t;
+
+#define MAX_SDP_SLOTS 128
+static sdp_slot_t sdp_slots[MAX_SDP_SLOTS];
+
+/*****************************************************************************
+ * LOCAL Functions
+ *****************************************************************************/
+static int add_maps_sdp(const bluetooth_sdp_mas_record* rec);
+static int add_mapc_sdp(const bluetooth_sdp_mns_record* rec);
+static int add_pbaps_sdp(const bluetooth_sdp_pse_record* rec);
+static int add_opps_sdp(const bluetooth_sdp_ops_record* rec);
+static int add_saps_sdp(const bluetooth_sdp_sap_record* rec);
+bt_status_t remove_sdp_record(int record_id);
+static int free_sdp_slot(int id);
+
+/******************************************************************************
+ * WARNING: Functions below are not called in BTU context.
+ * Introduced to make it possible to create SDP records from JAVA with both a
+ * RFCOMM channel and a L2CAP PSM.
+ * Overall architecture:
+ *  1) JAVA calls createRecord() which returns a pseudo ID which at a later
+ *     point will be linked to a specific SDP handle.
+ *  2) createRecord() requests the BTU task(thread) to call a callback in SDP
+ *     which creates the actual record, and updates the ID<->SDPHandle map
+ *     based on the ID beeing passed to BTA as user_data.
+ *****************************************************************************/
+
+static void init_sdp_slots()
+{
+    int i;
+    memset(sdp_slots, 0, sizeof(sdp_slot_t)*MAX_SDP_SLOTS);
+    /* if SDP_RECORD_FREE is zero - no need to set the value */
+    if(SDP_RECORD_FREE != 0) {
+        for(i = 0; i < MAX_SDP_SLOTS; i++)
+        {
+            sdp_slots[i].state = SDP_RECORD_FREE;
+        }
+    }
+}
+
+bt_status_t sdp_server_init()
+{
+    BTIF_TRACE_DEBUG("Sdp Server %s", __FUNCTION__);
+    init_sdp_slots();
+    return BT_STATUS_SUCCESS;
+}
+
+void sdp_server_cleanup()
+{
+    BTIF_TRACE_DEBUG("Sdp Server %s", __FUNCTION__);
+    pthread_mutex_lock(&sdp_lock);
+    int i;
+    for(i = 0; i < MAX_SDP_SLOTS; i++)
+    {
+         /*remove_sdp_record(i); we cannot send messages to the other threads, since they might
+         *                       have been shut down already. Just do local cleanup.
+         */
+        free_sdp_slot(i);
+    }
+    pthread_mutex_unlock(&sdp_lock);
+}
+
+int get_sdp_records_size(bluetooth_sdp_record* in_record, int count) {
+    bluetooth_sdp_record* record = in_record;
+    int records_size = 0;
+    int i;
+    for(i=0; i<count; i++) {
+        record = &in_record[i];
+        records_size += sizeof(bluetooth_sdp_record);
+        records_size += record->hdr.service_name_length;
+        if(record->hdr.service_name_length > 0){
+            records_size++; /* + '\0' termination of string */
+        }
+        records_size += record->hdr.user1_ptr_len;
+        records_size += record->hdr.user2_ptr_len;
+    }
+    return records_size;
+}
+
+/* Deep copy all content of in_records into out_records.
+ * out_records must point to a chunk of memory large enough to contain all
+ * the data. Use getSdpRecordsSize() to calculate the needed size. */
+void copy_sdp_records(bluetooth_sdp_record* in_records,
+        bluetooth_sdp_record* out_records, int count) {
+    int i;
+    bluetooth_sdp_record* in_record;
+    bluetooth_sdp_record* out_record;
+    char* free_ptr = (char*)(&out_records[count]); /* set pointer to after the last entry */
+
+    for(i=0; i<count; i++) {
+        in_record = &in_records[i];
+        out_record = &out_records[i];
+        *out_record = *in_record;
+
+        if(in_record->hdr.service_name == NULL || in_record->hdr.service_name_length == 0) {
+            out_record->hdr.service_name = NULL;
+            out_record->hdr.service_name_length = 0;
+        } else {
+            out_record->hdr.service_name = free_ptr; // Update service_name pointer
+            // Copy string
+            memcpy(free_ptr, in_record->hdr.service_name, in_record->hdr.service_name_length);
+            free_ptr += in_record->hdr.service_name_length;
+            *(free_ptr) = '\0'; // Set '\0' termination of string
+            free_ptr++;
+        }
+        if(in_record->hdr.user1_ptr != NULL) {
+            out_record->hdr.user1_ptr = (UINT8*)free_ptr; // Update pointer
+            memcpy(free_ptr, in_record->hdr.user1_ptr, in_record->hdr.user1_ptr_len); // Copy content
+            free_ptr += in_record->hdr.user1_ptr_len;
+        }
+        if(in_record->hdr.user2_ptr != NULL) {
+            out_record->hdr.user2_ptr = (UINT8*)free_ptr; // Update pointer
+            memcpy(free_ptr, in_record->hdr.user2_ptr, in_record->hdr.user2_ptr_len); // Copy content
+            free_ptr += in_record->hdr.user2_ptr_len;
+        }
+    }
+    return;
+}
+
+/* Reserve a slot in sdp_slots, copy data and set a reference to the copy.
+ * The record_data will contain both the record and any data pointed to by
+ * the record.
+ * Currently this covers:
+ *   service_name string,
+ *   user1_ptr and
+ *   user2_ptr. */
+static int alloc_sdp_slot(bluetooth_sdp_record* in_record) {
+    int i;
+    int record_size = get_sdp_records_size(in_record, 1);
+    bluetooth_sdp_record* record = osi_malloc(record_size);
+
+    copy_sdp_records(in_record, record, 1);
+
+    /* We are optimists here, and preallocate the record.
+     * This is to reduce the time we hold the sdp_lock. */
+    pthread_mutex_lock(&sdp_lock);
+    for(i = 0; i < MAX_SDP_SLOTS; i++)
+    {
+        if(sdp_slots[i].state == SDP_RECORD_FREE) {
+            sdp_slots[i].state = SDP_RECORD_ALLOCED;
+            sdp_slots[i].record_data = record;
+            break;
+        }
+    }
+    pthread_mutex_unlock(&sdp_lock);
+    if(i >= MAX_SDP_SLOTS) {
+        APPL_TRACE_ERROR("%s() failed - no more free slots!", __func__);
+        /* Rearly the optimist is too optimistic, and cleanup is needed...*/
+        osi_free(record);
+        return -1;
+    }
+    return i;
+}
+
+static int free_sdp_slot(int id) {
+    int handle = -1;
+    bluetooth_sdp_record* record = NULL;
+    if(id >= MAX_SDP_SLOTS) {
+        APPL_TRACE_ERROR("%s() failed - id %d is invalid", __func__, id);
+        return handle;
+    }
+    pthread_mutex_lock(&sdp_lock);
+    handle = sdp_slots[id].sdp_handle;
+    sdp_slots[id].sdp_handle = 0;
+    if(sdp_slots[id].state != SDP_RECORD_FREE)
+    {
+        /* safe a copy of the pointer, and free after unlock() */
+        record = sdp_slots[id].record_data;
+    }
+    sdp_slots[id].state = SDP_RECORD_FREE;
+    pthread_mutex_unlock(&sdp_lock);
+
+    if(record != NULL) {
+        osi_free(record);
+    } else {
+        // Record have already been freed
+        handle = -1;
+    }
+    return handle;
+}
+
+/***
+ * Use this to get a reference to a SDP slot AND change the state to
+ * SDP_RECORD_CREATE_INITIATED.
+ */
+static const sdp_slot_t* start_create_sdp(int id) {
+    sdp_slot_t* sdp_slot;
+    if(id >= MAX_SDP_SLOTS) {
+        APPL_TRACE_ERROR("%s() failed - id %d is invalid", __func__, id);
+        return NULL;
+    }
+    pthread_mutex_lock(&sdp_lock);
+    if(sdp_slots[id].state == SDP_RECORD_ALLOCED) {
+        sdp_slot = &(sdp_slots[id]);
+    } else {
+        /* The record have been removed before this event occurred - e.g. deinit */
+        sdp_slot = NULL;
+    }
+    pthread_mutex_unlock(&sdp_lock);
+    if(sdp_slot == NULL) {
+        APPL_TRACE_ERROR("%s() failed - state for id %d is "
+                "sdp_slots[id].state = %d expected %d", __func__,
+                id, sdp_slots[id].state, SDP_RECORD_ALLOCED);
+    }
+    return sdp_slot;
+}
+
+static void set_sdp_handle(int id, int handle) {
+    pthread_mutex_lock(&sdp_lock);
+    sdp_slots[id].sdp_handle = handle;
+    pthread_mutex_unlock(&sdp_lock);
+    BTIF_TRACE_DEBUG("%s() id=%d to handle=0x%08x", __FUNCTION__, id, handle);
+}
+
+bt_status_t create_sdp_record(bluetooth_sdp_record *record, int* record_handle) {
+    int handle;
+
+    handle = alloc_sdp_slot(record);
+    BTIF_TRACE_DEBUG("%s() handle = 0x%08x", __FUNCTION__, handle);
+
+    if(handle < 0)
+        return BT_STATUS_FAIL;
+
+    BTA_SdpCreateRecordByUser(INT_TO_PTR(handle));
+
+    *record_handle = handle;
+
+    return BT_STATUS_SUCCESS;
+}
+
+bt_status_t remove_sdp_record(int record_id) {
+    int handle;
+
+    /* Get the Record handle, and free the slot */
+    handle = free_sdp_slot(record_id);
+    BTIF_TRACE_DEBUG("Sdp Server %s id=%d to handle=0x%08x",
+            __FUNCTION__, record_id, handle);
+
+    /* Pass the actual record handle */
+    if(handle > 0) {
+        BTA_SdpRemoveRecordByUser(INT_TO_PTR(handle));
+        return BT_STATUS_SUCCESS;
+    }
+    BTIF_TRACE_DEBUG("Sdp Server %s - record already removed - or never created", __FUNCTION__);
+    return BT_STATUS_FAIL;
+}
+
+/******************************************************************************
+ * CALLBACK FUNCTIONS
+ * Called in BTA context to create/remove SDP records.
+ ******************************************************************************/
+
+void on_create_record_event(int id) {
+    /*
+     * 1) Fetch the record pointer, and change its state?
+     * 2) switch on the type to create the correct record
+     * 3) Update state on completion
+     * 4) What to do at fail?
+     * */
+    BTIF_TRACE_DEBUG("Sdp Server %s", __FUNCTION__);
+    const sdp_slot_t* sdp_slot = start_create_sdp(id);
+    /* In the case we are shutting down, sdp_slot is NULL */
+    if(sdp_slot != NULL) {
+        bluetooth_sdp_record* record = sdp_slot->record_data;
+        int handle = -1;
+        switch(record->hdr.type) {
+        case SDP_TYPE_MAP_MAS:
+            handle = add_maps_sdp(&record->mas);
+            break;
+        case SDP_TYPE_MAP_MNS:
+            handle = add_mapc_sdp(&record->mns);
+            break;
+        case SDP_TYPE_PBAP_PSE:
+            handle = add_pbaps_sdp(&record->pse);
+            break;
+        case SDP_TYPE_OPP_SERVER:
+            handle = add_opps_sdp(&record->ops);
+            break;
+        case SDP_TYPE_SAP_SERVER:
+            handle = add_saps_sdp(&record->sap);
+            break;
+        case SDP_TYPE_PBAP_PCE:
+    //        break; not yet supported
+        default:
+            BTIF_TRACE_DEBUG("Record type %d is not supported",record->hdr.type);
+            break;
+        }
+        if(handle != -1) {
+            set_sdp_handle(id, handle);
+        }
+    }
+}
+
+void on_remove_record_event(int handle) {
+    BTIF_TRACE_DEBUG("Sdp Server %s", __FUNCTION__);
+
+    // User data carries the actual SDP handle, not the ID.
+    if(handle != -1 && handle != 0) {
+        BOOLEAN result;
+        result = SDP_DeleteRecord( handle );
+        if(result == FALSE) {
+            BTIF_TRACE_ERROR("  Unable to remove handle 0x%08x", handle);
+        }
+    }
+}
+
+/****
+ * Below the actual functions accessing BTA context data - hence only call from BTA context!
+ */
+
+/* Create a MAP MAS SDP record based on information stored in a bluetooth_sdp_mas_record */
+static int add_maps_sdp(const bluetooth_sdp_mas_record* rec)
+{
+
+    tSDP_PROTOCOL_ELEM  protoList [3];
+    UINT16              service = UUID_SERVCLASS_MESSAGE_ACCESS;
+    UINT16              browse = UUID_SERVCLASS_PUBLIC_BROWSE_GROUP;
+    BOOLEAN             status = TRUE;
+    UINT32              sdp_handle = 0;
+    UINT8               temp[4];
+    UINT8*              p_temp = temp;
+
+    APPL_TRACE_DEBUG("%s(): MASID = 0x%02x, scn 0x%02x, psm = 0x%04x\n  service name %s", __func__,
+            rec->mas_instance_id, rec->hdr.rfcomm_channel_number,
+            rec->hdr.l2cap_psm, rec->hdr.service_name);
+
+    APPL_TRACE_DEBUG("  msg_types: 0x%02x, feature_bits: 0x%08x",
+            rec->supported_message_types, rec->supported_features);
+
+    if ((sdp_handle = SDP_CreateRecord()) == 0)
+    {
+        APPL_TRACE_ERROR("%s() - Unable to register MAPS Service", __func__);
+        return sdp_handle;
+    }
+
+    /* add service class */
+    status &= SDP_AddServiceClassIdList(sdp_handle, 1, &service);
+    memset( protoList, 0 , 3*sizeof(tSDP_PROTOCOL_ELEM) );
+
+    /* add protocol list, including RFCOMM scn */
+    protoList[0].protocol_uuid = UUID_PROTOCOL_L2CAP;
+    protoList[0].num_params = 0;
+    protoList[1].protocol_uuid = UUID_PROTOCOL_RFCOMM;
+    protoList[1].num_params = 1;
+    protoList[1].params[0] = rec->hdr.rfcomm_channel_number;
+    protoList[2].protocol_uuid = UUID_PROTOCOL_OBEX;
+    protoList[2].num_params = 0;
+    status &= SDP_AddProtocolList(sdp_handle, 3, protoList);
+
+    /* Add a name entry */
+    status &= SDP_AddAttribute(sdp_handle,
+                    (UINT16)ATTR_ID_SERVICE_NAME,
+                    (UINT8)TEXT_STR_DESC_TYPE,
+                    (UINT32)(rec->hdr.service_name_length + 1),
+                    (UINT8 *)rec->hdr.service_name);
+
+    /* Add in the Bluetooth Profile Descriptor List */
+    status &= SDP_AddProfileDescriptorList(sdp_handle,
+                                     UUID_SERVCLASS_MAP_PROFILE,
+                                     rec->hdr.profile_version);
+
+    /* Add MAS instance ID */
+    status &= SDP_AddAttribute(sdp_handle, ATTR_ID_MAS_INSTANCE_ID, UINT_DESC_TYPE,
+              (UINT32)1, (UINT8*)&rec->mas_instance_id);
+
+    /* Add supported message types */
+    status &= SDP_AddAttribute(sdp_handle, ATTR_ID_SUPPORTED_MSG_TYPE, UINT_DESC_TYPE,
+              (UINT32)1, (UINT8*)&rec->supported_message_types);
+
+    /* Add supported feature */
+    UINT32_TO_BE_STREAM(p_temp, rec->supported_features);
+    status &= SDP_AddAttribute(sdp_handle, ATTR_ID_MAP_SUPPORTED_FEATURES,
+            UINT_DESC_TYPE, (UINT32)4, temp);
+
+    /* Add the L2CAP PSM if present */
+    if(rec->hdr.l2cap_psm != -1) {
+        p_temp = temp;// The macro modifies p_temp, hence rewind.
+        UINT16_TO_BE_STREAM(p_temp, rec->hdr.l2cap_psm);
+        status &= SDP_AddAttribute(sdp_handle, ATTR_ID_GOEP_L2CAP_PSM,
+                UINT_DESC_TYPE, (UINT32)2, temp);
+    }
+
+    /* Make the service browseable */
+    status &= SDP_AddUuidSequence (sdp_handle, ATTR_ID_BROWSE_GROUP_LIST, 1, &browse);
+
+    if (!status)
+    {
+        SDP_DeleteRecord(sdp_handle);
+        sdp_handle = 0;
+        APPL_TRACE_ERROR("%s() FAILED", __func__);
+    }
+    else
+    {
+        bta_sys_add_uuid(service);  /* UUID_SERVCLASS_MESSAGE_ACCESS */
+        APPL_TRACE_DEBUG("%s():  SDP Registered (handle 0x%08x)", __func__, sdp_handle);
+    }
+    return sdp_handle;
+}
+
+/* Create a MAP MNS SDP record based on information stored in a bluetooth_sdp_mns_record */
+static int add_mapc_sdp(const bluetooth_sdp_mns_record* rec)
+{
+
+    tSDP_PROTOCOL_ELEM  protoList [3];
+    UINT16              service = UUID_SERVCLASS_MESSAGE_NOTIFICATION;
+    UINT16              browse = UUID_SERVCLASS_PUBLIC_BROWSE_GROUP;
+    BOOLEAN             status = TRUE;
+    UINT32              sdp_handle = 0;
+    UINT8               temp[4];
+    UINT8*              p_temp = temp;
+
+    APPL_TRACE_DEBUG("%s(): scn 0x%02x, psm = 0x%04x\n  service name %s", __func__,
+            rec->hdr.rfcomm_channel_number, rec->hdr.l2cap_psm, rec->hdr.service_name);
+
+    APPL_TRACE_DEBUG("  feature_bits: 0x%08x", rec->supported_features);
+
+    if ((sdp_handle = SDP_CreateRecord()) == 0)
+    {
+        APPL_TRACE_ERROR("%s(): Unable to register MAP Notification Service", __func__);
+        return sdp_handle;
+    }
+
+    /* add service class */
+    status &= SDP_AddServiceClassIdList(sdp_handle, 1, &service);
+    memset( protoList, 0 , 3*sizeof(tSDP_PROTOCOL_ELEM) );
+
+    /* add protocol list, including RFCOMM scn */
+    protoList[0].protocol_uuid = UUID_PROTOCOL_L2CAP;
+    protoList[0].num_params = 0;
+    protoList[1].protocol_uuid = UUID_PROTOCOL_RFCOMM;
+    protoList[1].num_params = 1;
+    protoList[1].params[0] = rec->hdr.rfcomm_channel_number;
+    protoList[2].protocol_uuid = UUID_PROTOCOL_OBEX;
+    protoList[2].num_params = 0;
+    status &= SDP_AddProtocolList(sdp_handle, 3, protoList);
+
+    /* Add a name entry */
+    status &= SDP_AddAttribute(sdp_handle,
+                    (UINT16)ATTR_ID_SERVICE_NAME,
+                    (UINT8)TEXT_STR_DESC_TYPE,
+                    (UINT32)(rec->hdr.service_name_length + 1),
+                    (UINT8 *)rec->hdr.service_name);
+
+    /* Add in the Bluetooth Profile Descriptor List */
+    status &= SDP_AddProfileDescriptorList(sdp_handle,
+                                     UUID_SERVCLASS_MAP_PROFILE,
+                                     rec->hdr.profile_version);
+
+    /* Add supported feature */
+    UINT32_TO_BE_STREAM(p_temp, rec->supported_features);
+    status &= SDP_AddAttribute(sdp_handle, ATTR_ID_MAP_SUPPORTED_FEATURES,
+            UINT_DESC_TYPE, (UINT32)4, temp);
+
+    /* Add the L2CAP PSM if present */
+    if(rec->hdr.l2cap_psm != -1) {
+        p_temp = temp;// The macro modifies p_temp, hence rewind.
+        UINT16_TO_BE_STREAM(p_temp, rec->hdr.l2cap_psm);
+        status &= SDP_AddAttribute(sdp_handle, ATTR_ID_GOEP_L2CAP_PSM,
+                UINT_DESC_TYPE, (UINT32)2, temp);
+    }
+
+    /* Make the service browseable */
+    status &= SDP_AddUuidSequence (sdp_handle, ATTR_ID_BROWSE_GROUP_LIST, 1, &browse);
+
+    if (!status)
+    {
+        SDP_DeleteRecord(sdp_handle);
+        sdp_handle = 0;
+        APPL_TRACE_ERROR("%s() FAILED", __func__);
+    }
+    else
+    {
+        bta_sys_add_uuid(service);  /* UUID_SERVCLASS_MESSAGE_ACCESS */
+        APPL_TRACE_DEBUG("%s():  SDP Registered (handle 0x%08x)", __func__, sdp_handle);
+    }
+    return sdp_handle;
+}
+
+/* Create a PBAP Server SDP record based on information stored in a bluetooth_sdp_pse_record */
+static int add_pbaps_sdp(const bluetooth_sdp_pse_record* rec)
+{
+
+    tSDP_PROTOCOL_ELEM  protoList [3];
+    UINT16              service = UUID_SERVCLASS_PBAP_PSE;
+    UINT16              browse = UUID_SERVCLASS_PUBLIC_BROWSE_GROUP;
+    BOOLEAN             status = TRUE;
+    UINT32              sdp_handle = 0;
+    UINT8               temp[4];
+    UINT8*              p_temp = temp;
+
+    APPL_TRACE_DEBUG("%s(): scn 0x%02x, psm = 0x%04x\n  service name %s", __func__,
+            rec->hdr.rfcomm_channel_number, rec->hdr.l2cap_psm, rec->hdr.service_name);
+
+    APPL_TRACE_DEBUG("  supported_repositories: 0x%08x, feature_bits: 0x%08x",
+            rec->supported_repositories, rec->supported_features);
+
+    if ((sdp_handle = SDP_CreateRecord()) == 0)
+    {
+        APPL_TRACE_ERROR("%s(): Unable to register PBAP Server Service", __func__);
+        return sdp_handle;
+    }
+
+    /* add service class */
+    status &= SDP_AddServiceClassIdList(sdp_handle, 1, &service);
+    memset( protoList, 0 , 3*sizeof(tSDP_PROTOCOL_ELEM) );
+
+    /* add protocol list, including RFCOMM scn */
+    protoList[0].protocol_uuid = UUID_PROTOCOL_L2CAP;
+    protoList[0].num_params = 0;
+    protoList[1].protocol_uuid = UUID_PROTOCOL_RFCOMM;
+    protoList[1].num_params = 1;
+    protoList[1].params[0] = rec->hdr.rfcomm_channel_number;
+    protoList[2].protocol_uuid = UUID_PROTOCOL_OBEX;
+    protoList[2].num_params = 0;
+    status &= SDP_AddProtocolList(sdp_handle, 3, protoList);
+
+    /* Add a name entry */
+    status &= SDP_AddAttribute(sdp_handle,
+                    (UINT16)ATTR_ID_SERVICE_NAME,
+                    (UINT8)TEXT_STR_DESC_TYPE,
+                    (UINT32)(rec->hdr.service_name_length + 1),
+                    (UINT8 *)rec->hdr.service_name);
+
+    /* Add in the Bluetooth Profile Descriptor List */
+    status &= SDP_AddProfileDescriptorList(sdp_handle,
+                                     UUID_SERVCLASS_PHONE_ACCESS,
+                                     rec->hdr.profile_version);
+
+    /* Add supported repositories 1 byte */
+    status &= SDP_AddAttribute(sdp_handle, ATTR_ID_SUPPORTED_REPOSITORIES,
+            UINT_DESC_TYPE, (UINT32)1, (UINT8*)&rec->supported_repositories);
+
+    /* Add supported feature 4 bytes*/
+    UINT32_TO_BE_STREAM(p_temp, rec->supported_features);
+    status &= SDP_AddAttribute(sdp_handle, ATTR_ID_PBAP_SUPPORTED_FEATURES,
+            UINT_DESC_TYPE, (UINT32)4, temp);
+
+    /* Add the L2CAP PSM if present */
+    if(rec->hdr.l2cap_psm != -1) {
+        p_temp = temp;// The macro modifies p_temp, hence rewind.
+        UINT16_TO_BE_STREAM(p_temp, rec->hdr.l2cap_psm);
+        status &= SDP_AddAttribute(sdp_handle, ATTR_ID_GOEP_L2CAP_PSM,
+                UINT_DESC_TYPE, (UINT32)2, temp);
+    }
+
+    /* Make the service browseable */
+    status &= SDP_AddUuidSequence (sdp_handle, ATTR_ID_BROWSE_GROUP_LIST, 1, &browse);
+
+    if (!status)
+    {
+        SDP_DeleteRecord(sdp_handle);
+        sdp_handle = 0;
+        APPL_TRACE_ERROR("%s() FAILED", __func__);
+    }
+    else
+    {
+        bta_sys_add_uuid(service);  /* UUID_SERVCLASS_MESSAGE_ACCESS */
+        APPL_TRACE_DEBUG("%s():  SDP Registered (handle 0x%08x)", __func__, sdp_handle);
+    }
+    return sdp_handle;
+}
+
+/* Create a OPP Server SDP record based on information stored in a bluetooth_sdp_ops_record */
+static int add_opps_sdp(const bluetooth_sdp_ops_record* rec)
+{
+
+    tSDP_PROTOCOL_ELEM  protoList [3];
+    UINT16              service = UUID_SERVCLASS_OBEX_OBJECT_PUSH;
+    UINT16              browse = UUID_SERVCLASS_PUBLIC_BROWSE_GROUP;
+    UINT8               type_len[rec->supported_formats_list_len];
+    UINT8               desc_type[rec->supported_formats_list_len];
+    UINT8              *type_value[rec->supported_formats_list_len];
+    BOOLEAN             status = TRUE;
+    UINT32              sdp_handle = 0;
+    UINT8               temp[4];
+    UINT8*              p_temp = temp;
+    tBTA_UTL_COD        cod;
+    int i,j;
+
+    APPL_TRACE_DEBUG("%s(): scn 0x%02x, psm = 0x%04x\n  service name %s", __func__,
+            rec->hdr.rfcomm_channel_number, rec->hdr.l2cap_psm, rec->hdr.service_name);
+
+    APPL_TRACE_DEBUG("  supported formats count: %d",
+            rec->supported_formats_list_len);
+
+    if ((sdp_handle = SDP_CreateRecord()) == 0)
+    {
+        APPL_TRACE_ERROR("%s(): Unable to register Object Push Server Service", __func__);
+        return sdp_handle;
+    }
+
+    /* add service class */
+    status &= SDP_AddServiceClassIdList(sdp_handle, 1, &service);
+    memset( protoList, 0 , 3*sizeof(tSDP_PROTOCOL_ELEM) );
+
+    /* add protocol list, including RFCOMM scn */
+    protoList[0].protocol_uuid = UUID_PROTOCOL_L2CAP;
+    protoList[0].num_params = 0;
+    protoList[1].protocol_uuid = UUID_PROTOCOL_RFCOMM;
+    protoList[1].num_params = 1;
+    protoList[1].params[0] = rec->hdr.rfcomm_channel_number;
+    protoList[2].protocol_uuid = UUID_PROTOCOL_OBEX;
+    protoList[2].num_params = 0;
+    status &= SDP_AddProtocolList(sdp_handle, 3, protoList);
+
+    /* Add a name entry */
+    status &= SDP_AddAttribute(sdp_handle,
+                    (UINT16)ATTR_ID_SERVICE_NAME,
+                    (UINT8)TEXT_STR_DESC_TYPE,
+                    (UINT32)(rec->hdr.service_name_length + 1),
+                    (UINT8 *)rec->hdr.service_name);
+
+    /* Add in the Bluetooth Profile Descriptor List */
+    status &= SDP_AddProfileDescriptorList(sdp_handle,
+                                     UUID_SERVCLASS_OBEX_OBJECT_PUSH,
+                                     rec->hdr.profile_version);
+
+    /* add sequence for supported types */
+    for (i = 0, j = 0; i < rec->supported_formats_list_len; i++)
+    {
+        type_value[j] = (UINT8 *) &rec->supported_formats_list[i];
+        desc_type[j] = UINT_DESC_TYPE;
+        type_len[j++] = 1;
+    }
+
+    status &= SDP_AddSequence(sdp_handle, (UINT16) ATTR_ID_SUPPORTED_FORMATS_LIST,
+        (UINT8) rec->supported_formats_list_len, desc_type, type_len, type_value);
+
+    /* Add the L2CAP PSM if present */
+    if(rec->hdr.l2cap_psm != -1) {
+        p_temp = temp;// The macro modifies p_temp, hence rewind.
+        UINT16_TO_BE_STREAM(p_temp, rec->hdr.l2cap_psm);
+        status &= SDP_AddAttribute(sdp_handle, ATTR_ID_GOEP_L2CAP_PSM,
+                UINT_DESC_TYPE, (UINT32)2, temp);
+    }
+
+    /* Make the service browseable */
+    status &= SDP_AddUuidSequence (sdp_handle, ATTR_ID_BROWSE_GROUP_LIST, 1, &browse);
+
+    if (!status)
+    {
+        SDP_DeleteRecord(sdp_handle);
+        sdp_handle = 0;
+        APPL_TRACE_ERROR("%s() FAILED", __func__);
+    }
+    else
+    {
+        /* set class of device */
+        cod.service = BTM_COD_SERVICE_OBJ_TRANSFER;
+        utl_set_device_class(&cod, BTA_UTL_SET_COD_SERVICE_CLASS);
+
+        bta_sys_add_uuid(service);  /* UUID_SERVCLASS_OBEX_OBJECT_PUSH */
+        APPL_TRACE_DEBUG("%s():  SDP Registered (handle 0x%08x)", __func__, sdp_handle);
+    }
+    return sdp_handle;
+}
+
+// Create a Sim Access Profile SDP record based on information stored in a bluetooth_sdp_sap_record.
+static int add_saps_sdp(const bluetooth_sdp_sap_record* rec)
+{
+    tSDP_PROTOCOL_ELEM  protoList [2];
+    UINT16              services[2];
+    UINT16              browse = UUID_SERVCLASS_PUBLIC_BROWSE_GROUP;
+    BOOLEAN             status = TRUE;
+    UINT32              sdp_handle = 0;
+
+    APPL_TRACE_DEBUG("%s(): scn 0x%02x, service name %s", __func__,
+            rec->hdr.rfcomm_channel_number, rec->hdr.service_name);
+
+    if ((sdp_handle = SDP_CreateRecord()) == 0)
+    {
+        APPL_TRACE_ERROR("%s(): Unable to register SAPS Service", __func__);
+        return sdp_handle;
+    }
+
+    services[0] = UUID_SERVCLASS_SAP;
+    services[1] = UUID_SERVCLASS_GENERIC_TELEPHONY;
+
+    // add service class
+    status &= SDP_AddServiceClassIdList(sdp_handle, 2, services);
+    memset(protoList, 0, 2 * sizeof(tSDP_PROTOCOL_ELEM));
+
+    // add protocol list, including RFCOMM scn
+    protoList[0].protocol_uuid = UUID_PROTOCOL_L2CAP;
+    protoList[0].num_params = 0;
+    protoList[1].protocol_uuid = UUID_PROTOCOL_RFCOMM;
+    protoList[1].num_params = 1;
+    protoList[1].params[0] = rec->hdr.rfcomm_channel_number;
+    status &= SDP_AddProtocolList(sdp_handle, 2, protoList);
+
+    // Add a name entry
+    status &= SDP_AddAttribute(sdp_handle,
+                    (UINT16)ATTR_ID_SERVICE_NAME,
+                    (UINT8)TEXT_STR_DESC_TYPE,
+                    (UINT32)(rec->hdr.service_name_length + 1),
+                    (UINT8 *)rec->hdr.service_name);
+
+    // Add in the Bluetooth Profile Descriptor List
+    status &= SDP_AddProfileDescriptorList(sdp_handle,
+            UUID_SERVCLASS_SAP,
+            rec->hdr.profile_version);
+
+    // Make the service browseable
+    status &= SDP_AddUuidSequence (sdp_handle, ATTR_ID_BROWSE_GROUP_LIST, 1, &browse);
+
+    if (!status)
+    {
+        SDP_DeleteRecord(sdp_handle);
+        sdp_handle = 0;
+        APPL_TRACE_ERROR("%s(): FAILED deleting record", __func__);
+    }
+    else
+    {
+        bta_sys_add_uuid(UUID_SERVCLASS_SAP);
+        APPL_TRACE_DEBUG("%s(): SDP Registered (handle 0x%08x)", __func__, sdp_handle);
+    }
+    return sdp_handle;
+}
diff --git a/rtkbt/code/bt/btif/src/btif_sm.c b/rtkbt/code/bt/btif/src/btif_sm.c
new file mode 100755
index 0000000..aa856c5
--- /dev/null
+++ b/rtkbt/code/bt/btif/src/btif_sm.c
@@ -0,0 +1,186 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/*****************************************************************************
+ *
+ *  Filename:      btif_sm.c
+ *
+ *  Description:   Generic BTIF state machine API
+ *
+ *****************************************************************************/
+
+#define LOG_TAG "bt_btif"
+
+#include "btif_sm.h"
+
+#include "btif_common.h"
+#include "bt_common.h"
+#include "osi/include/allocator.h"
+
+/*****************************************************************************
+**  Local type definitions
+******************************************************************************/
+typedef struct {
+    btif_sm_state_t         state;
+    btif_sm_handler_t       *p_handlers;
+} btif_sm_cb_t;
+
+/*****************************************************************************
+**  Functions
+******************************************************************************/
+
+/*****************************************************************************
+**
+** Function     btif_sm_init
+**
+** Description  Initializes the state machine with the state handlers
+**              The caller should ensure that the table and the corresponding
+**              states match. The location that 'p_handlers' points to shall
+**              be available until the btif_sm_shutdown API is invoked.
+**
+** Returns      Returns a pointer to the initialized state machine handle.
+**
+******************************************************************************/
+
+btif_sm_handle_t btif_sm_init(const btif_sm_handler_t *p_handlers, btif_sm_state_t initial_state)
+{
+    if (p_handlers == NULL) {
+        BTIF_TRACE_ERROR("%s : p_handlers is NULL", __FUNCTION__);
+        return NULL;
+    }
+
+    btif_sm_cb_t *p_cb = (btif_sm_cb_t *)osi_malloc(sizeof(btif_sm_cb_t));
+    p_cb->state = initial_state;
+    p_cb->p_handlers = (btif_sm_handler_t*)p_handlers;
+
+    /* Send BTIF_SM_ENTER_EVT to the initial state */
+    p_cb->p_handlers[initial_state](BTIF_SM_ENTER_EVT, NULL);
+
+    return (btif_sm_handle_t)p_cb;
+}
+
+/*****************************************************************************
+**
+** Function     btif_sm_shutdown
+**
+** Description  Tears down the state machine
+**
+** Returns      None
+**
+******************************************************************************/
+void btif_sm_shutdown(btif_sm_handle_t handle)
+{
+    btif_sm_cb_t *p_cb = (btif_sm_cb_t*)handle;
+
+    if (p_cb == NULL)
+    {
+        BTIF_TRACE_ERROR("%s : Invalid handle", __FUNCTION__);
+        return;
+    }
+    osi_free(p_cb);
+}
+
+/*****************************************************************************
+**
+** Function     btif_sm_get_state
+**
+** Description  Fetches the current state of the state machine
+**
+** Returns      Current state
+**
+******************************************************************************/
+btif_sm_state_t btif_sm_get_state(btif_sm_handle_t handle)
+{
+    btif_sm_cb_t *p_cb = (btif_sm_cb_t*)handle;
+
+    if (p_cb == NULL)
+    {
+        BTIF_TRACE_ERROR("%s : Invalid handle", __FUNCTION__);
+        return 0;
+    }
+
+    return p_cb->state;
+}
+
+/*****************************************************************************
+**
+** Function     btif_sm_dispatch
+**
+** Description  Dispatches the 'event' along with 'data' to the current state handler
+**
+** Returns      BT_STATUS_SUCCESS on success
+**              BT_STATUS_UNHANDLED if event was not processed
+**              BT_STATUS_FAIL otherwise
+**
+******************************************************************************/
+bt_status_t btif_sm_dispatch(btif_sm_handle_t handle, btif_sm_event_t event,
+                                void *data)
+{
+    bt_status_t status = BT_STATUS_SUCCESS;
+
+    btif_sm_cb_t *p_cb = (btif_sm_cb_t*)handle;
+
+    if (p_cb == NULL)
+    {
+        BTIF_TRACE_ERROR("%s : Invalid handle", __FUNCTION__);
+        return BT_STATUS_FAIL;
+    }
+
+    if (p_cb->p_handlers[p_cb->state](event, data) == FALSE)
+        return BT_STATUS_UNHANDLED;
+
+    return status;
+}
+
+/*****************************************************************************
+**
+** Function     btif_sm_change_state
+**
+** Description  Make a transition to the new 'state'. The 'BTIF_SM_EXIT_EVT'
+**              shall be invoked before exiting the current state. The
+**              'BTIF_SM_ENTER_EVT' shall be invoked before entering the new state
+**
+** Returns      BT_STATUS_SUCCESS on success
+**              BT_STATUS_UNHANDLED if event was not processed
+**              BT_STATUS_FAIL otherwise
+**
+******************************************************************************/
+bt_status_t btif_sm_change_state(btif_sm_handle_t handle, btif_sm_state_t state)
+{
+    bt_status_t status = BT_STATUS_SUCCESS;
+    btif_sm_cb_t *p_cb = (btif_sm_cb_t*)handle;
+
+    if (p_cb == NULL)
+    {
+        BTIF_TRACE_ERROR("%s : Invalid handle", __FUNCTION__);
+        return BT_STATUS_FAIL;
+    }
+
+    /* Send exit event to the current state */
+    if (p_cb->p_handlers[p_cb->state](BTIF_SM_EXIT_EVT, NULL) == FALSE)
+        status = BT_STATUS_UNHANDLED;
+
+    /* Change to the new state */
+    p_cb->state = state;
+
+    /* Send enter event to the new state */
+    if (p_cb->p_handlers[p_cb->state](BTIF_SM_ENTER_EVT, NULL) == FALSE)
+        status = BT_STATUS_UNHANDLED;
+
+    return status;
+}
diff --git a/rtkbt/code/bt/btif/src/btif_sock.c b/rtkbt/code/bt/btif/src/btif_sock.c
new file mode 100755
index 0000000..f35b488
--- /dev/null
+++ b/rtkbt/code/bt/btif/src/btif_sock.c
@@ -0,0 +1,202 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_btif_sock"
+
+#include <assert.h>
+
+#include <hardware/bluetooth.h>
+#include <hardware/bt_sock.h>
+
+#include "bta_api.h"
+#include "btif_common.h"
+#include "btif_sock_l2cap.h"
+#include "btif_sock_rfc.h"
+#include "btif_sock_sco.h"
+#include "btif_sock_sdp.h"
+#include "btif_sock_thread.h"
+#include "btif_uid.h"
+#include "btif_util.h"
+#include "osi/include/thread.h"
+
+static bt_status_t btsock_listen(btsock_type_t type, const char *service_name, const uint8_t *uuid, int channel, int *sock_fd, int flags, int app_uid);
+static bt_status_t btsock_connect(const bt_bdaddr_t *bd_addr, btsock_type_t type, const uint8_t *uuid, int channel, int *sock_fd, int flags, int app_uid);
+
+static void btsock_signaled(int fd, int type, int flags, uint32_t user_id);
+
+static int thread_handle = -1;
+static thread_t *thread;
+#ifdef BLUETOOTH_RTK
+btsock_interface_t *btif_sock_get_interface(void) {
+  static btsock_interface_t interface = {
+    .size = sizeof(interface),
+    .listen = btsock_listen,
+    .connect = btsock_connect
+  };
+
+
+  return &interface;
+}
+#else
+btsock_interface_t *btif_sock_get_interface(void) {
+  static btsock_interface_t interface = {
+    sizeof(interface),
+    btsock_listen,
+    btsock_connect
+  };
+
+
+  return &interface;
+}
+#endif
+bt_status_t btif_sock_init(uid_set_t* uid_set) {
+  assert(thread_handle == -1);
+  assert(thread == NULL);
+
+  btsock_thread_init();
+  thread_handle = btsock_thread_create(btsock_signaled, NULL);
+  if (thread_handle == -1) {
+    LOG_ERROR(LOG_TAG, "%s unable to create btsock_thread.", __func__);
+    goto error;
+  }
+
+  bt_status_t status = btsock_rfc_init(thread_handle, uid_set);
+  if (status != BT_STATUS_SUCCESS) {
+    LOG_ERROR(LOG_TAG, "%s error initializing RFCOMM sockets: %d", __func__, status);
+    btsock_rfc_cleanup();
+    goto error;
+  }
+
+  status = btsock_l2cap_init(thread_handle, uid_set);
+  if (status != BT_STATUS_SUCCESS) {
+    LOG_ERROR(LOG_TAG, "%s error initializing L2CAP sockets: %d", __func__, status);
+    btsock_l2cap_cleanup();
+    goto error;
+  }
+
+  thread = thread_new("btif_sock");
+  if (!thread) {
+    LOG_ERROR(LOG_TAG, "%s error creating new thread.", __func__);
+    goto error;
+  }
+
+  status = btsock_sco_init(thread);
+  if (status != BT_STATUS_SUCCESS) {
+    LOG_ERROR(LOG_TAG, "%s error initializing SCO sockets: %d", __func__, status);
+    btsock_sco_cleanup();
+    goto error;
+  }
+
+  return BT_STATUS_SUCCESS;
+
+error:;
+  thread_free(thread);
+  thread = NULL;
+  if (thread_handle != -1)
+    btsock_thread_exit(thread_handle);
+  thread_handle = -1;
+  uid_set = NULL;
+  return BT_STATUS_FAIL;
+}
+
+void btif_sock_cleanup(void) {
+  if (thread_handle == -1)
+    return;
+
+  thread_stop(thread);
+  thread_join(thread);
+  btsock_thread_exit(thread_handle);
+  btsock_rfc_cleanup();
+  btsock_sco_cleanup();
+  btsock_l2cap_cleanup();
+  thread_free(thread);
+  thread_handle = -1;
+  thread = NULL;
+}
+
+static bt_status_t btsock_listen(btsock_type_t type, const char *service_name, const uint8_t *service_uuid, int channel, int *sock_fd, int flags, int app_uid) {
+  if((flags & BTSOCK_FLAG_NO_SDP) == 0) {
+      assert(service_uuid != NULL || channel > 0);
+      assert(sock_fd != NULL);
+  }
+
+  *sock_fd = INVALID_FD;
+  bt_status_t status = BT_STATUS_FAIL;
+
+  switch (type) {
+    case BTSOCK_RFCOMM:
+      status = btsock_rfc_listen(service_name, service_uuid, channel, sock_fd, flags, app_uid);
+      break;
+    case BTSOCK_L2CAP:
+      status = btsock_l2cap_listen(service_name, channel, sock_fd, flags, app_uid);
+      break;
+
+    case BTSOCK_SCO:
+      status = btsock_sco_listen(sock_fd, flags);
+      break;
+
+    default:
+      LOG_ERROR(LOG_TAG, "%s unknown/unsupported socket type: %d", __func__, type);
+      status = BT_STATUS_UNSUPPORTED;
+      break;
+  }
+  return status;
+}
+
+static bt_status_t btsock_connect(const bt_bdaddr_t *bd_addr, btsock_type_t type, const uint8_t *uuid, int channel, int *sock_fd, int flags, int app_uid) {
+  assert(uuid != NULL || channel > 0);
+  assert(bd_addr != NULL);
+  assert(sock_fd != NULL);
+
+  *sock_fd = INVALID_FD;
+  bt_status_t status = BT_STATUS_FAIL;
+
+  switch (type) {
+    case BTSOCK_RFCOMM:
+      status = btsock_rfc_connect(bd_addr, uuid, channel, sock_fd, flags, app_uid);
+      break;
+
+    case BTSOCK_L2CAP:
+      status = btsock_l2cap_connect(bd_addr, channel, sock_fd, flags, app_uid);
+      break;
+
+    case BTSOCK_SCO:
+      status = btsock_sco_connect(bd_addr, sock_fd, flags);
+      break;
+
+    default:
+      LOG_ERROR(LOG_TAG, "%s unknown/unsupported socket type: %d", __func__, type);
+      status = BT_STATUS_UNSUPPORTED;
+      break;
+  }
+  return status;
+}
+
+static void btsock_signaled(int fd, int type, int flags, uint32_t user_id) {
+  switch (type) {
+    case BTSOCK_RFCOMM:
+      btsock_rfc_signaled(fd, flags, user_id);
+      break;
+    case BTSOCK_L2CAP:
+      btsock_l2cap_signaled(fd, flags, user_id);
+      break;
+    default:
+      assert(false && "Invalid socket type");
+      break;
+  }
+}
diff --git a/rtkbt/code/bt/btif/src/btif_sock_l2cap.c b/rtkbt/code/bt/btif/src/btif_sock_l2cap.c
new file mode 100755
index 0000000..03c3ef4
--- /dev/null
+++ b/rtkbt/code/bt/btif/src/btif_sock_l2cap.c
@@ -0,0 +1,1108 @@
+/*
+* Copyright (C) 2014 Samsung System LSI
+* Copyright (C) 2013 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*      http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+#define LOG_TAG "bt_btif_sock"
+
+#include "btif_sock_l2cap.h"
+
+#include <errno.h>
+#include <pthread.h>
+#include <stdlib.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include <hardware/bt_sock.h>
+
+#include "osi/include/allocator.h"
+#include "osi/include/log.h"
+
+#include "bt_target.h"
+#include "bta_api.h"
+#include "bta_jv_api.h"
+#include "bta_jv_co.h"
+#include "btif_common.h"
+#include "btif_sock_sdp.h"
+#include "btif_sock_thread.h"
+#include "btif_sock_util.h"
+#include "btif_uid.h"
+#include "btif_util.h"
+#include "btm_api.h"
+#include "btm_int.h"
+#include "btu.h"
+#include "bt_common.h"
+#include "hcimsgs.h"
+#include "l2c_api.h"
+#include "l2cdefs.h"
+#include "port_api.h"
+#include "sdp_api.h"
+
+#define asrt(s) if (!(s)) APPL_TRACE_ERROR("## %s assert %s failed at line:%d ##",__FUNCTION__, \
+        #s, __LINE__)
+
+struct packet {
+    struct packet *next, *prev;
+    uint32_t len;
+    uint8_t *data;
+};
+
+typedef struct l2cap_socket {
+
+    struct l2cap_socket   *prev;                 //link to prev list item
+    struct l2cap_socket   *next;                 //link to next list item
+    bt_bdaddr_t            addr;                 //other side's address
+    char                   name[256];            //user-friendly name of the service
+    uint32_t               id;                   //just a tag to find this struct
+    int                    app_uid;              // The UID of the app who requested this socket
+    int                    handle;               //handle from lower layers
+    unsigned               security;             //security flags
+    int                    channel;              //channel (fixed_chan) or PSM (!fixed_chan)
+    int                    our_fd;               //fd from our side
+    int                    app_fd;               //fd from app's side
+
+    unsigned               bytes_buffered;
+    struct packet         *first_packet;         //fist packet to be delivered to app
+    struct packet         *last_packet;          //last packet to be delivered to app
+
+    fixed_queue_t         *incoming_que;         //data that came in but has not yet been read
+    unsigned               fixed_chan       :1;  //fixed channel (or psm?)
+    unsigned               server           :1;  //is a server? (or connecting?)
+    unsigned               connected        :1;  //is connected?
+    unsigned               outgoing_congest :1;  //should we hold?
+    unsigned               server_psm_sent  :1;  //The server shall only send PSM once.
+    BOOLEAN                is_le_coc;            //is le connection oriented channel?
+} l2cap_socket;
+
+static bt_status_t btSock_start_l2cap_server_l(l2cap_socket *sock);
+
+static pthread_mutex_t state_lock;
+
+l2cap_socket *socks = NULL;
+static uid_set_t* uid_set = NULL;
+static int pth = -1;
+
+static void btsock_l2cap_cbk(tBTA_JV_EVT event, tBTA_JV *p_data, void *user_data);
+
+/* TODO: Consider to remove this buffer, as we have a buffer in l2cap as well, and we risk
+ *       a buffer overflow with this implementation if the socket data is not read from
+ *       JAVA for a while. In such a case we should use flow control to tell the sender to
+ *       back off.
+ *       BUT remember we need to avoid blocking the BTA task execution - hence we cannot
+ *       directly write to the socket.
+ *       we should be able to change to store the data pointer here, and just wait
+ *       confirming the l2cap_ind until we have more space in the buffer. */
+
+/* returns FALSE if none - caller must free "data" memory when done with it */
+static char packet_get_head_l(l2cap_socket *sock, uint8_t **data, uint32_t *len)
+{
+    struct packet *p = sock->first_packet;
+
+    if (!p)
+        return FALSE;
+
+    if (data)
+        *data = sock->first_packet->data;
+    if (len)
+        *len = sock->first_packet->len;
+    sock->first_packet = p->next;
+    if (sock->first_packet)
+        sock->first_packet->prev = NULL;
+    else
+        sock->last_packet = NULL;
+
+    if(len)
+        sock->bytes_buffered -= *len;
+
+    osi_free(p);
+
+    return TRUE;
+}
+
+static struct packet *packet_alloc(const uint8_t *data, uint32_t len)
+{
+    struct packet *p = osi_calloc(sizeof(*p));
+    uint8_t *buf = osi_malloc(len);
+
+    p->data = buf;
+    p->len = len;
+    memcpy(p->data, data, len);
+    return p;
+}
+
+/* makes a copy of the data, returns TRUE on success */
+static char packet_put_head_l(l2cap_socket *sock, const void *data, uint32_t len)
+{
+    struct packet *p = packet_alloc((const uint8_t*)data, len);
+
+    /*
+     * We do not check size limits here since this is used to undo "getting" a
+     * packet that the user read incompletely. That is to say the packet was
+     * already in the queue. We do check thos elimits in packet_put_tail_l() since
+     * that function is used to put new data into the queue.
+     */
+
+    if (!p)
+        return FALSE;
+
+    p->prev = NULL;
+    p->next = sock->first_packet;
+    sock->first_packet = p;
+    if (p->next)
+        p->next->prev = p;
+    else
+        sock->last_packet = p;
+
+    sock->bytes_buffered += len;
+
+    return TRUE;
+}
+
+/* makes a copy of the data, returns TRUE on success */
+static char packet_put_tail_l(l2cap_socket *sock, const void *data, uint32_t len)
+{
+    struct packet *p = packet_alloc((const uint8_t*)data, len);
+
+    if (sock->bytes_buffered >= L2CAP_MAX_RX_BUFFER) {
+        LOG_ERROR(LOG_TAG, "packet_put_tail_l: buffer overflow");
+        return FALSE;
+    }
+
+    if (!p) {
+        LOG_ERROR(LOG_TAG, "packet_put_tail_l: unable to allocate packet...");
+        return FALSE;
+    }
+
+    p->next = NULL;
+    p->prev = sock->last_packet;
+    sock->last_packet = p;
+    if (p->prev)
+        p->prev->next = p;
+    else
+        sock->first_packet = p;
+
+    sock->bytes_buffered += len;
+
+    return TRUE;
+}
+
+static inline void bd_copy(UINT8* dest, UINT8* src, BOOLEAN swap)
+{
+    if (swap) {
+        int i;
+        for (i =0; i < 6 ;i++)
+            dest[i]= src[5-i];
+    }
+    else memcpy(dest, src, 6);
+}
+
+static char is_inited(void)
+{
+    char ret;
+
+    pthread_mutex_lock(&state_lock);
+    ret = pth != -1;
+    pthread_mutex_unlock(&state_lock);
+
+    return ret;
+}
+
+/* only call with mutex taken */
+static l2cap_socket *btsock_l2cap_find_by_id_l(uint32_t id)
+{
+    l2cap_socket *sock = socks;
+
+    while (sock && sock->id != id)
+        sock = sock->next;
+
+    return sock;
+}
+
+static void btsock_l2cap_free_l(l2cap_socket *sock)
+{
+    uint8_t *buf;
+    l2cap_socket *t = socks;
+
+    while(t && t != sock)
+        t = t->next;
+
+    if (!t) /* prever double-frees */
+        return;
+
+    if (sock->next)
+        sock->next->prev = sock->prev;
+
+    if (sock->prev)
+        sock->prev->next = sock->next;
+    else
+        socks = sock->next;
+
+    shutdown(sock->our_fd, SHUT_RDWR);
+    close(sock->our_fd);
+    if (sock->app_fd != -1) {
+        close(sock->app_fd);
+    } else {
+        APPL_TRACE_ERROR("SOCK_LIST: free(id = %d) - NO app_fd!", sock->id);
+    }
+
+    while (packet_get_head_l(sock, &buf, NULL))
+        osi_free(buf);
+
+    //lower-level close() should be idempotent... so let's call it and see...
+    if (sock->is_le_coc)
+    {
+        // Only call if we are non server connections
+        if (sock->handle >= 0 && (sock->server == FALSE)) {
+                BTA_JvL2capClose(sock->handle);
+        }
+        if ((sock->channel >= 0) && (sock->server == TRUE)) {
+            BTA_JvFreeChannel(sock->channel, BTA_JV_CONN_TYPE_L2CAP);
+        }
+    }
+    else
+    {
+        // Only call if we are non server connections
+        if (sock->handle && (sock->server == FALSE)) {
+            if (sock->fixed_chan)
+                BTA_JvL2capCloseLE(sock->handle);
+            else
+                BTA_JvL2capClose(sock->handle);
+        }
+        if ((sock->channel >= 0) && (sock->server == TRUE)) {
+            if (sock->fixed_chan)
+                BTA_JvFreeChannel(sock->channel, BTA_JV_CONN_TYPE_L2CAP_LE);
+            else
+                BTA_JvFreeChannel(sock->channel, BTA_JV_CONN_TYPE_L2CAP);
+        }
+    }
+
+    APPL_TRACE_DEBUG("%s: free(id = %d)", __func__, sock->id);
+    osi_free(sock);
+}
+
+static l2cap_socket *btsock_l2cap_alloc_l(const char *name, const bt_bdaddr_t *addr,
+        char is_server, int flags)
+{
+    unsigned security = 0;
+    int fds[2];
+    l2cap_socket *sock = osi_calloc(sizeof(*sock));
+
+    if (flags & BTSOCK_FLAG_ENCRYPT)
+        security |= is_server ? BTM_SEC_IN_ENCRYPT : BTM_SEC_OUT_ENCRYPT;
+    if (flags & BTSOCK_FLAG_AUTH)
+        security |= is_server ? BTM_SEC_IN_AUTHENTICATE : BTM_SEC_OUT_AUTHENTICATE;
+    if (flags & BTSOCK_FLAG_AUTH_MITM)
+        security |= is_server ? BTM_SEC_IN_MITM : BTM_SEC_OUT_MITM;
+    if (flags & BTSOCK_FLAG_AUTH_16_DIGIT)
+        security |= BTM_SEC_IN_MIN_16_DIGIT_PIN;
+
+    if (socketpair(AF_LOCAL, SOCK_SEQPACKET, 0, fds)) {
+        APPL_TRACE_ERROR("socketpair failed, errno:%d", errno);
+        goto fail_sockpair;
+    }
+
+    sock->our_fd = fds[0];
+    sock->app_fd = fds[1];
+    sock->security = security;
+    sock->server = is_server;
+    sock->connected = FALSE;
+    sock->handle = 0;
+    sock->server_psm_sent = FALSE;
+    sock->app_uid = -1;
+
+    if (name)
+        strncpy(sock->name, name, sizeof(sock->name) - 1);
+    if (addr)
+        sock->addr = *addr;
+
+    sock->first_packet = NULL;
+    sock->last_packet = NULL;
+
+    sock->next = socks;
+    sock->prev = NULL;
+    if (socks)
+        socks->prev = sock;
+    sock->id = (socks ? socks->id : 0) + 1;
+    socks = sock;
+    /* paranoia cap on: verify no ID duplicates due to overflow and fix as needed */
+    while (1) {
+        l2cap_socket *t;
+        t = socks->next;
+        while (t && t->id != sock->id) {
+            t = t->next;
+        }
+        if (!t && sock->id) /* non-zeor handle is unique -> we're done */
+            break;
+        /* if we're here, we found a duplicate */
+        if (!++sock->id) /* no zero IDs allowed */
+            sock->id++;
+    }
+    APPL_TRACE_DEBUG("SOCK_LIST: alloc(id = %d)", sock->id);
+    return sock;
+
+fail_sockpair:
+    osi_free(sock);
+    return NULL;
+}
+
+bt_status_t btsock_l2cap_init(int handle, uid_set_t* set)
+{
+    APPL_TRACE_DEBUG("%s handle = %d", __func__);
+    pthread_mutex_init(&state_lock, NULL);
+    pthread_mutex_lock(&state_lock);
+    pth = handle;
+    socks = NULL;
+    uid_set = set;
+    pthread_mutex_unlock(&state_lock);
+
+    return BT_STATUS_SUCCESS;
+}
+
+bt_status_t btsock_l2cap_cleanup()
+{
+    pthread_mutex_lock(&state_lock);
+    pth = -1;
+    while (socks)
+        btsock_l2cap_free_l(socks);
+    pthread_mutex_unlock(&state_lock);
+    pthread_mutex_destroy(&state_lock);
+
+    return BT_STATUS_SUCCESS;
+}
+
+static inline BOOLEAN send_app_psm_or_chan_l(l2cap_socket *sock)
+{
+    return sock_send_all(sock->our_fd, (const uint8_t*)&sock->channel, sizeof(sock->channel))
+            == sizeof(sock->channel);
+}
+
+static BOOLEAN send_app_connect_signal(int fd, const bt_bdaddr_t* addr,
+        int channel, int status, int send_fd, int tx_mtu)
+{
+    sock_connect_signal_t cs;
+    cs.size = sizeof(cs);
+    cs.bd_addr = *addr;
+    cs.channel = channel;
+    cs.status = status;
+    cs.max_rx_packet_size = L2CAP_MAX_SDU_LENGTH;
+    cs.max_tx_packet_size = tx_mtu;
+    if (send_fd != -1) {
+        if (sock_send_fd(fd, (const uint8_t*)&cs, sizeof(cs), send_fd) == sizeof(cs))
+            return TRUE;
+        else APPL_TRACE_ERROR("sock_send_fd failed, fd:%d, send_fd:%d", fd, send_fd);
+    } else if (sock_send_all(fd, (const uint8_t*)&cs, sizeof(cs)) == sizeof(cs)) {
+        return TRUE;
+    }
+    return FALSE;
+}
+
+static void on_srv_l2cap_listen_started(tBTA_JV_L2CAP_START *p_start, uint32_t id)
+{
+    l2cap_socket *sock;
+
+    pthread_mutex_lock(&state_lock);
+    sock = btsock_l2cap_find_by_id_l(id);
+    if (sock) {
+        if (p_start->status != BTA_JV_SUCCESS) {
+            APPL_TRACE_ERROR("Error starting l2cap_listen - status: 0x%04x", p_start->status);
+            btsock_l2cap_free_l(sock);
+        }
+        else {
+            sock->handle = p_start->handle;
+            APPL_TRACE_DEBUG("on_srv_l2cap_listen_started() sock->handle =%d id:%d",
+                    sock->handle, sock->id);
+            if(sock->server_psm_sent == FALSE) {
+                if (!send_app_psm_or_chan_l(sock)) {
+                    //closed
+                    APPL_TRACE_DEBUG("send_app_psm() failed, close rs->id:%d", sock->id);
+                    btsock_l2cap_free_l(sock);
+                } else {
+                    sock->server_psm_sent = TRUE;
+                }
+            }
+        }
+    }
+    pthread_mutex_unlock(&state_lock);
+}
+
+static void on_cl_l2cap_init(tBTA_JV_L2CAP_CL_INIT *p_init, uint32_t id)
+{
+    l2cap_socket *sock;
+
+    pthread_mutex_lock(&state_lock);
+    sock = btsock_l2cap_find_by_id_l(id);
+    if (sock) {
+        if (p_init->status != BTA_JV_SUCCESS) {
+            btsock_l2cap_free_l(sock);
+        } else {
+            sock->handle = p_init->handle;
+        }
+    }
+    pthread_mutex_unlock(&state_lock);
+}
+
+/**
+ * Here we allocate a new sock instance to mimic the BluetoothSocket. The socket will be a clone
+ * of the sock representing the BluetoothServerSocket.
+ * */
+static void on_srv_l2cap_psm_connect_l(tBTA_JV_L2CAP_OPEN *p_open, l2cap_socket *sock)
+{
+    l2cap_socket *accept_rs;
+    uint32_t new_listen_id;
+
+    // Mutex locked by caller
+    accept_rs = btsock_l2cap_alloc_l(sock->name, (const bt_bdaddr_t*)p_open->rem_bda, FALSE, 0);
+    accept_rs->connected = TRUE;
+    accept_rs->security = sock->security;
+    accept_rs->fixed_chan = sock->fixed_chan;
+    accept_rs->channel = sock->channel;
+    accept_rs->handle = sock->handle;
+    accept_rs->app_uid = sock->app_uid;
+    sock->handle = -1; /* We should no longer associate this handle with the server socket */
+    accept_rs->is_le_coc = sock->is_le_coc;
+
+    /* Swap IDs to hand over the GAP connection to the accepted socket, and start a new server on
+       the newly create socket ID. */
+    new_listen_id = accept_rs->id;
+    accept_rs->id = sock->id;
+    sock->id = new_listen_id;
+
+    if (accept_rs) {
+        //start monitor the socket
+        btsock_thread_add_fd(pth, sock->our_fd, BTSOCK_L2CAP, SOCK_THREAD_FD_EXCEPTION, sock->id);
+        btsock_thread_add_fd(pth, accept_rs->our_fd, BTSOCK_L2CAP, SOCK_THREAD_FD_RD,
+                accept_rs->id);
+        APPL_TRACE_DEBUG("sending connect signal & app fd: %d to app server to accept() the"
+                " connection", accept_rs->app_fd);
+        APPL_TRACE_DEBUG("server fd:%d, scn:%d", sock->our_fd, sock->channel);
+        send_app_connect_signal(sock->our_fd, &accept_rs->addr, sock->channel, 0,
+                accept_rs->app_fd, p_open->tx_mtu);
+        accept_rs->app_fd = -1; // The fd is closed after sent to app in send_app_connect_signal()
+                                // But for some reason we still leak a FD - either the server socket
+                                // one or the accept socket one.
+        if(btSock_start_l2cap_server_l(sock) != BT_STATUS_SUCCESS) {
+            btsock_l2cap_free_l(sock);
+        }
+    }
+}
+
+static void on_srv_l2cap_le_connect_l(tBTA_JV_L2CAP_LE_OPEN *p_open, l2cap_socket *sock)
+{
+    l2cap_socket *accept_rs;
+    uint32_t new_listen_id;
+
+    // mutex locked by caller
+    accept_rs = btsock_l2cap_alloc_l(sock->name, (const bt_bdaddr_t*)p_open->rem_bda, FALSE, 0);
+    if (accept_rs) {
+
+        //swap IDs
+        new_listen_id = accept_rs->id;
+        accept_rs->id = sock->id;
+        sock->id = new_listen_id;
+
+        accept_rs->handle = p_open->handle;
+        accept_rs->connected = TRUE;
+        accept_rs->security = sock->security;
+        accept_rs->fixed_chan = sock->fixed_chan;
+        accept_rs->channel = sock->channel;
+        accept_rs->app_uid = sock->app_uid;
+
+        //if we do not set a callback, this socket will be dropped */
+        *(p_open->p_p_cback) = (void*)btsock_l2cap_cbk;
+        *(p_open->p_user_data) = UINT_TO_PTR(accept_rs->id);
+
+        //start monitor the socket
+        btsock_thread_add_fd(pth, sock->our_fd, BTSOCK_L2CAP, SOCK_THREAD_FD_EXCEPTION, sock->id);
+        btsock_thread_add_fd(pth, accept_rs->our_fd, BTSOCK_L2CAP, SOCK_THREAD_FD_RD,
+                accept_rs->id);
+        APPL_TRACE_DEBUG("sending connect signal & app fd:%dto app server to accept() the"
+                " connection", accept_rs->app_fd);
+        APPL_TRACE_DEBUG("server fd:%d, scn:%d", sock->our_fd, sock->channel);
+        send_app_connect_signal(sock->our_fd, &accept_rs->addr, sock->channel, 0,
+                accept_rs->app_fd, p_open->tx_mtu);
+        accept_rs->app_fd = -1; //the fd is closed after sent to app
+    }
+}
+
+static void on_cl_l2cap_psm_connect_l(tBTA_JV_L2CAP_OPEN *p_open, l2cap_socket *sock)
+{
+    bd_copy(sock->addr.address, p_open->rem_bda, 0);
+
+    if (!send_app_psm_or_chan_l(sock)) {
+        APPL_TRACE_ERROR("send_app_psm_or_chan_l failed");
+        return;
+    }
+
+    if (send_app_connect_signal(sock->our_fd, &sock->addr, sock->channel, 0, -1, p_open->tx_mtu)) {
+        //start monitoring the socketpair to get call back when app writing data
+        APPL_TRACE_DEBUG("on_l2cap_connect_ind, connect signal sent, slot id:%d, psm:%d,"
+                " server:%d", sock->id, sock->channel, sock->server);
+        btsock_thread_add_fd(pth, sock->our_fd, BTSOCK_L2CAP, SOCK_THREAD_FD_RD, sock->id);
+        sock->connected = TRUE;
+    }
+    else APPL_TRACE_ERROR("send_app_connect_signal failed");
+}
+
+static void on_cl_l2cap_le_connect_l(tBTA_JV_L2CAP_LE_OPEN *p_open, l2cap_socket *sock)
+{
+    bd_copy(sock->addr.address, p_open->rem_bda, 0);
+
+    if (!send_app_psm_or_chan_l(sock)) {
+        APPL_TRACE_ERROR("send_app_psm_or_chan_l failed");
+        return;
+    }
+
+    if (send_app_connect_signal(sock->our_fd, &sock->addr, sock->channel, 0, -1, p_open->tx_mtu)) {
+        //start monitoring the socketpair to get call back when app writing data
+        APPL_TRACE_DEBUG("on_l2cap_connect_ind, connect signal sent, slot id:%d, Chan:%d,"
+                " server:%d", sock->id, sock->channel, sock->server);
+        btsock_thread_add_fd(pth, sock->our_fd, BTSOCK_L2CAP, SOCK_THREAD_FD_RD, sock->id);
+        sock->connected = TRUE;
+    }
+    else APPL_TRACE_ERROR("send_app_connect_signal failed");
+}
+
+static void on_l2cap_connect(tBTA_JV *p_data, uint32_t id)
+{
+    l2cap_socket *sock;
+    tBTA_JV_L2CAP_OPEN *psm_open = &p_data->l2c_open;
+    tBTA_JV_L2CAP_LE_OPEN *le_open = &p_data->l2c_le_open;
+
+    pthread_mutex_lock(&state_lock);
+    sock = btsock_l2cap_find_by_id_l(id);
+    if (!sock) {
+        APPL_TRACE_ERROR("on_l2cap_connect on unknown socket");
+    } else {
+        if (sock->fixed_chan && le_open->status == BTA_JV_SUCCESS) {
+            if (!sock->server)
+                on_cl_l2cap_le_connect_l(le_open, sock);
+            else
+                on_srv_l2cap_le_connect_l(le_open, sock);
+        } else if (!sock->fixed_chan && psm_open->status == BTA_JV_SUCCESS) {
+            if (!sock->server)
+                on_cl_l2cap_psm_connect_l(psm_open, sock);
+            else
+                on_srv_l2cap_psm_connect_l(psm_open, sock);
+        }
+        else
+            btsock_l2cap_free_l(sock);
+    }
+    pthread_mutex_unlock(&state_lock);
+}
+
+static void on_l2cap_close(tBTA_JV_L2CAP_CLOSE * p_close, uint32_t id)
+{
+    l2cap_socket *sock;
+
+    pthread_mutex_lock(&state_lock);
+    sock = btsock_l2cap_find_by_id_l(id);
+    if (sock) {
+        APPL_TRACE_DEBUG("on_l2cap_close, slot id:%d, fd:%d, %s:%d, server:%d",
+                sock->id, sock->our_fd, sock->fixed_chan ? "fixed_chan" : "PSM",
+                sock->channel, sock->server);
+        // TODO: This does not seem to be called...
+        // I'm not sure if this will be called for non-server sockets?
+        if(!sock->fixed_chan && (sock->server == TRUE)) {
+            BTA_JvFreeChannel(sock->channel, BTA_JV_CONN_TYPE_L2CAP);
+        }
+        btsock_l2cap_free_l(sock);
+    }
+    pthread_mutex_unlock(&state_lock);
+}
+
+static void on_l2cap_outgoing_congest(tBTA_JV_L2CAP_CONG *p, uint32_t id)
+{
+    l2cap_socket *sock;
+
+    pthread_mutex_lock(&state_lock);
+    sock = btsock_l2cap_find_by_id_l(id);
+    if (sock) {
+        sock->outgoing_congest = p->cong ? 1 : 0;
+        //mointer the fd for any outgoing data
+        if (!sock->outgoing_congest) {
+            APPL_TRACE_DEBUG("on_l2cap_outgoing_congest: adding fd to btsock_thread...");
+            btsock_thread_add_fd(pth, sock->our_fd, BTSOCK_L2CAP, SOCK_THREAD_FD_RD, sock->id);
+
+        }
+    }
+    pthread_mutex_unlock(&state_lock);
+}
+
+static void on_l2cap_write_done(void* req_id, uint16_t len, uint32_t id)
+{
+    l2cap_socket *sock;
+
+    if (req_id != NULL) {
+        osi_free(req_id); //free the buffer
+    }
+
+    int app_uid = -1;
+
+    pthread_mutex_lock(&state_lock);
+    sock = btsock_l2cap_find_by_id_l(id);
+    if (sock) {
+        app_uid = sock->app_uid;
+        if (!sock->outgoing_congest) {
+            //monitor the fd for any outgoing data
+            APPL_TRACE_DEBUG("on_l2cap_write_done: adding fd to btsock_thread...");
+            btsock_thread_add_fd(pth, sock->our_fd, BTSOCK_L2CAP, SOCK_THREAD_FD_RD, sock->id);
+        }
+    }
+    pthread_mutex_unlock(&state_lock);
+
+    uid_set_add_tx(uid_set, app_uid, len);
+}
+
+static void on_l2cap_write_fixed_done(void* req_id, uint16_t len, uint32_t id)
+{
+    l2cap_socket *sock;
+
+    if (req_id != NULL) {
+        osi_free(req_id); //free the buffer
+    }
+
+    int app_uid = -1;
+    pthread_mutex_lock(&state_lock);
+    sock = btsock_l2cap_find_by_id_l(id);
+    if (sock) {
+        app_uid = sock->app_uid;
+        if (!sock->outgoing_congest) {
+            //monitor the fd for any outgoing data
+            btsock_thread_add_fd(pth, sock->our_fd, BTSOCK_L2CAP, SOCK_THREAD_FD_RD, sock->id);
+        }
+    }
+    pthread_mutex_unlock(&state_lock);
+
+    uid_set_add_tx(uid_set, app_uid, len);
+}
+
+static void on_l2cap_data_ind(tBTA_JV *evt, uint32_t id)
+{
+    l2cap_socket *sock;
+
+    int app_uid = -1;
+    UINT32 bytes_read = 0;
+
+    pthread_mutex_lock(&state_lock);
+    sock = btsock_l2cap_find_by_id_l(id);
+    if (sock) {
+        app_uid = sock->app_uid;
+
+        if (sock->fixed_chan) { /* we do these differently */
+
+            tBTA_JV_LE_DATA_IND *p_le_data_ind = &evt->le_data_ind;
+            BT_HDR *p_buf = p_le_data_ind->p_buf;
+            uint8_t *data = (uint8_t*)(p_buf + 1) + p_buf->offset;
+
+            if (packet_put_tail_l(sock, data, p_buf->len)) {
+                bytes_read = p_buf->len;
+                btsock_thread_add_fd(pth, sock->our_fd, BTSOCK_L2CAP, SOCK_THREAD_FD_WR, sock->id);
+            } else {//connection must be dropped
+                APPL_TRACE_DEBUG("on_l2cap_data_ind() unable to push data to socket - closing"
+                        " fixed channel");
+                BTA_JvL2capCloseLE(sock->handle);
+                btsock_l2cap_free_l(sock);
+            }
+
+        } else {
+
+            UINT8 buffer[L2CAP_MAX_SDU_LENGTH];
+            UINT32  count;
+
+            if (BTA_JvL2capReady(sock->handle, &count) == BTA_JV_SUCCESS) {
+                if (BTA_JvL2capRead(sock->handle, sock->id, buffer, count) == BTA_JV_SUCCESS) {
+                    if (packet_put_tail_l(sock, buffer, count)) {
+                        bytes_read = count;
+                        btsock_thread_add_fd(pth, sock->our_fd, BTSOCK_L2CAP, SOCK_THREAD_FD_WR,
+                                sock->id);
+                    } else {//connection must be dropped
+                        APPL_TRACE_DEBUG("on_l2cap_data_ind() unable to push data to socket"
+                                " - closing channel");
+                        BTA_JvL2capClose(sock->handle);
+                        btsock_l2cap_free_l(sock);
+                    }
+                }
+            }
+        }
+    }
+    pthread_mutex_unlock(&state_lock);
+
+    uid_set_add_rx(uid_set, app_uid, bytes_read);
+}
+
+static void btsock_l2cap_cbk(tBTA_JV_EVT event, tBTA_JV *p_data, void *user_data)
+{
+    uint32_t sock_id = PTR_TO_UINT(user_data);
+
+    switch (event) {
+    case BTA_JV_L2CAP_START_EVT:
+        on_srv_l2cap_listen_started(&p_data->l2c_start, sock_id);
+        break;
+
+    case BTA_JV_L2CAP_CL_INIT_EVT:
+        on_cl_l2cap_init(&p_data->l2c_cl_init, sock_id);
+        break;
+
+    case BTA_JV_L2CAP_OPEN_EVT:
+        on_l2cap_connect(p_data, sock_id);
+        BTA_JvSetPmProfile(p_data->l2c_open.handle, BTA_JV_PM_ID_1,BTA_JV_CONN_OPEN);
+        break;
+
+    case BTA_JV_L2CAP_CLOSE_EVT:
+        APPL_TRACE_DEBUG("BTA_JV_L2CAP_CLOSE_EVT: id: %u", sock_id);
+        on_l2cap_close(&p_data->l2c_close, sock_id);
+        break;
+
+    case BTA_JV_L2CAP_DATA_IND_EVT:
+        on_l2cap_data_ind(p_data, sock_id);
+        APPL_TRACE_DEBUG("BTA_JV_L2CAP_DATA_IND_EVT");
+        break;
+
+    case BTA_JV_L2CAP_READ_EVT:
+        APPL_TRACE_DEBUG("BTA_JV_L2CAP_READ_EVT not used");
+        break;
+
+    case BTA_JV_L2CAP_WRITE_EVT:
+        APPL_TRACE_DEBUG("BTA_JV_L2CAP_WRITE_EVT: id: %u", sock_id);
+        on_l2cap_write_done(UINT_TO_PTR(p_data->l2c_write.req_id), p_data->l2c_write.len, sock_id);
+        break;
+
+    case BTA_JV_L2CAP_WRITE_FIXED_EVT:
+        APPL_TRACE_DEBUG("BTA_JV_L2CAP_WRITE_FIXED_EVT: id: %u", sock_id);
+        on_l2cap_write_fixed_done(UINT_TO_PTR(p_data->l2c_write_fixed.req_id), p_data->l2c_write.len, sock_id);
+        break;
+
+    case BTA_JV_L2CAP_CONG_EVT:
+        on_l2cap_outgoing_congest(&p_data->l2c_cong, sock_id);
+        break;
+
+    default:
+        APPL_TRACE_ERROR("unhandled event %d, slot id: %u", event, sock_id);
+        break;
+    }
+}
+
+/* L2CAP default options for OBEX socket connections */
+const tL2CAP_FCR_OPTS obex_l2c_fcr_opts_def =
+{
+    L2CAP_FCR_ERTM_MODE,            /* Mandatory for OBEX over l2cap */
+    OBX_FCR_OPT_TX_WINDOW_SIZE_BR_EDR,/* Tx window size */
+    OBX_FCR_OPT_MAX_TX_B4_DISCNT,   /* Maximum transmissions before disconnecting */
+    OBX_FCR_OPT_RETX_TOUT,          /* Retransmission timeout (2 secs) */
+    OBX_FCR_OPT_MONITOR_TOUT,       /* Monitor timeout (12 secs) */
+    OBX_FCR_OPT_MAX_PDU_SIZE        /* MPS segment size */
+};
+const tL2CAP_ERTM_INFO obex_l2c_etm_opt =
+{
+        L2CAP_FCR_ERTM_MODE,            /* Mandatory for OBEX over l2cap */
+        L2CAP_FCR_CHAN_OPT_ERTM,        /* Mandatory for OBEX over l2cap */
+        OBX_USER_RX_BUF_SIZE,
+        OBX_USER_TX_BUF_SIZE,
+        OBX_FCR_RX_BUF_SIZE,
+        OBX_FCR_TX_BUF_SIZE
+};
+
+/**
+ * When using a dynamic PSM, a PSM allocation is requested from btsock_l2cap_listen_or_connect().
+ * The PSM allocation event is refeived in the JV-callback - currently located in RFC-code -
+ * and this function is called with the newly allocated PSM.
+ */
+void on_l2cap_psm_assigned(int id, int psm) {
+    l2cap_socket *sock;
+    /* Setup ETM settings:
+     *  mtu will be set below */
+    pthread_mutex_lock(&state_lock);
+    sock = btsock_l2cap_find_by_id_l(id);
+    sock->channel = psm;
+
+    if(btSock_start_l2cap_server_l(sock) != BT_STATUS_SUCCESS) {
+        btsock_l2cap_free_l(sock);
+    }
+
+    pthread_mutex_unlock(&state_lock);
+
+}
+
+static bt_status_t btSock_start_l2cap_server_l(l2cap_socket *sock) {
+    tL2CAP_CFG_INFO cfg;
+    bt_status_t stat = BT_STATUS_SUCCESS;
+    /* Setup ETM settings:
+     *  mtu will be set below */
+    memset(&cfg, 0, sizeof(tL2CAP_CFG_INFO));
+
+    cfg.fcr_present = TRUE;
+    cfg.fcr = obex_l2c_fcr_opts_def;
+
+    if (sock->fixed_chan) {
+
+        if (BTA_JvL2capStartServerLE(sock->security, 0, NULL, sock->channel,
+                L2CAP_DEFAULT_MTU, NULL, btsock_l2cap_cbk, UINT_TO_PTR(sock->id))
+                != BTA_JV_SUCCESS)
+            stat = BT_STATUS_FAIL;
+
+    } else {
+        /* If we have a channel specified in the request, just start the server,
+         * else we request a PSM and start the server after we receive a PSM. */
+        if (sock->channel < 0) {
+            if (sock->is_le_coc) {
+                if (BTA_JvGetChannelId(BTA_JV_CONN_TYPE_L2CAP_LE, UINT_TO_PTR(sock->id), 0)
+                        != BTA_JV_SUCCESS)
+                    stat = BT_STATUS_FAIL;
+            }
+            else
+            {
+                if (BTA_JvGetChannelId(BTA_JV_CONN_TYPE_L2CAP, UINT_TO_PTR(sock->id), 0)
+                        != BTA_JV_SUCCESS)
+                    stat = BT_STATUS_FAIL;
+            }
+        } else {
+            if (sock->is_le_coc) {
+                if (BTA_JvL2capStartServer(BTA_JV_CONN_TYPE_L2CAP_LE, sock->security, 0, NULL,
+                        sock->channel, L2CAP_MAX_SDU_LENGTH, &cfg, btsock_l2cap_cbk, UINT_TO_PTR(sock->id))
+                        != BTA_JV_SUCCESS)
+                    stat = BT_STATUS_FAIL;
+            }
+            else
+            {
+                if (BTA_JvL2capStartServer(BTA_JV_CONN_TYPE_L2CAP, sock->security, 0, &obex_l2c_etm_opt,
+                        sock->channel, L2CAP_MAX_SDU_LENGTH, &cfg, btsock_l2cap_cbk, UINT_TO_PTR(sock->id))
+                        != BTA_JV_SUCCESS)
+                    stat = BT_STATUS_FAIL;
+            }
+        }
+    }
+    return stat;
+}
+
+static bt_status_t btsock_l2cap_listen_or_connect(const char *name, const bt_bdaddr_t *addr,
+        int channel, int* sock_fd, int flags, char listen, int app_uid)
+{
+    bt_status_t stat;
+    int fixed_chan = 1;
+    l2cap_socket *sock;
+    tL2CAP_CFG_INFO cfg;
+    BOOLEAN is_le_coc = FALSE;
+
+    if (!sock_fd)
+        return BT_STATUS_PARM_INVALID;
+
+    if(channel < 0) {
+        // We need to auto assign a PSM
+        fixed_chan = 0;
+    } else {
+        fixed_chan = (channel & L2CAP_MASK_FIXED_CHANNEL) != 0;
+        is_le_coc = (channel & L2CAP_MASK_LE_COC_CHANNEL) != 0;
+        channel &=~ (L2CAP_MASK_FIXED_CHANNEL | L2CAP_MASK_LE_COC_CHANNEL);
+    }
+
+    if (!is_inited())
+        return BT_STATUS_NOT_READY;
+
+    // TODO: This is kind of bad to lock here, but it is needed for the current design.
+    pthread_mutex_lock(&state_lock);
+
+    sock = btsock_l2cap_alloc_l(name, addr, listen, flags);
+    if (!sock) {
+        pthread_mutex_unlock(&state_lock);
+        return BT_STATUS_NOMEM;
+    }
+
+    sock->fixed_chan = fixed_chan;
+    sock->channel = channel;
+    sock->app_uid = app_uid;
+    sock->is_le_coc = is_le_coc;
+
+    stat = BT_STATUS_SUCCESS;
+
+    /* Setup ETM settings:
+     *  mtu will be set below */
+    memset(&cfg, 0, sizeof(tL2CAP_CFG_INFO));
+
+    cfg.fcr_present = TRUE;
+    cfg.fcr = obex_l2c_fcr_opts_def;
+
+    /* "role" is never initialized in rfcomm code */
+    if (listen) {
+        stat = btSock_start_l2cap_server_l(sock);
+    } else {
+        if (fixed_chan) {
+            if (BTA_JvL2capConnectLE(sock->security, 0, NULL, channel,
+                    L2CAP_DEFAULT_MTU, NULL, sock->addr.address, btsock_l2cap_cbk,
+                    UINT_TO_PTR(sock->id)) != BTA_JV_SUCCESS)
+                stat = BT_STATUS_FAIL;
+
+        } else {
+            if (sock->is_le_coc) {
+                if (BTA_JvL2capConnect(BTA_JV_CONN_TYPE_L2CAP_LE, sock->security, 0, NULL,
+                        channel, L2CAP_MAX_SDU_LENGTH, &cfg, sock->addr.address,
+                        btsock_l2cap_cbk, UINT_TO_PTR(sock->id)) != BTA_JV_SUCCESS)
+                    stat = BT_STATUS_FAIL;
+            }
+            else
+            {
+                if (BTA_JvL2capConnect(BTA_JV_CONN_TYPE_L2CAP, sock->security, 0, &obex_l2c_etm_opt,
+                        channel, L2CAP_MAX_SDU_LENGTH, &cfg, sock->addr.address,
+                        btsock_l2cap_cbk, UINT_TO_PTR(sock->id)) != BTA_JV_SUCCESS)
+                    stat = BT_STATUS_FAIL;
+            }
+        }
+    }
+
+    if (stat == BT_STATUS_SUCCESS) {
+        *sock_fd = sock->app_fd;
+        /* We pass the FD to JAVA, but since it runs in another process, we need to also close
+         * it in native, either straight away, as done when accepting an incoming connection,
+         * or when doing cleanup after this socket */
+        sock->app_fd = -1;  /*This leaks the file descriptor. The FD should be closed in
+                              JAVA but it apparently do not work */
+        btsock_thread_add_fd(pth, sock->our_fd, BTSOCK_L2CAP, SOCK_THREAD_FD_EXCEPTION,
+                sock->id);
+    } else {
+       btsock_l2cap_free_l(sock);
+    }
+    pthread_mutex_unlock(&state_lock);
+
+    return stat;
+}
+
+bt_status_t btsock_l2cap_listen(const char* name, int channel, int* sock_fd, int flags, int app_uid)
+{
+    return btsock_l2cap_listen_or_connect(name, NULL, channel, sock_fd, flags, 1, app_uid);
+}
+
+bt_status_t btsock_l2cap_connect(const bt_bdaddr_t *bd_addr, int channel, int* sock_fd, int flags, int app_uid)
+{
+    return btsock_l2cap_listen_or_connect(NULL, bd_addr, channel, sock_fd, flags, 0, app_uid);
+}
+
+/* return TRUE if we have more to send and should wait for user readiness, FALSE else
+ * (for example: unrecoverable error or no data)
+ */
+static BOOLEAN flush_incoming_que_on_wr_signal_l(l2cap_socket *sock)
+{
+    uint8_t *buf;
+    uint32_t len;
+
+    while (packet_get_head_l(sock, &buf, &len)) {
+        ssize_t sent;
+        OSI_NO_INTR(sent = send(sock->our_fd, buf, len, MSG_DONTWAIT));
+        int saved_errno = errno;
+
+        if (sent == (signed)len)
+            osi_free(buf);
+        else if (sent >= 0) {
+            packet_put_head_l(sock, buf + sent, len - sent);
+            osi_free(buf);
+            if (!sent) /* special case if other end not keeping up */
+                return TRUE;
+        }
+        else {
+            packet_put_head_l(sock, buf, len);
+            osi_free(buf);
+            return saved_errno == EWOULDBLOCK || saved_errno == EAGAIN;
+        }
+    }
+
+    return FALSE;
+}
+
+void btsock_l2cap_signaled(int fd, int flags, uint32_t user_id)
+{
+    l2cap_socket *sock;
+    char drop_it = FALSE;
+
+    /* We use MSG_DONTWAIT when sending data to JAVA, hence it can be accepted to hold the lock. */
+    pthread_mutex_lock(&state_lock);
+    sock = btsock_l2cap_find_by_id_l(user_id);
+    if (sock) {
+        if ((flags & SOCK_THREAD_FD_RD) && !sock->server) {
+            //app sending data
+            if (sock->connected) {
+                int size = 0;
+
+                if (!(flags & SOCK_THREAD_FD_EXCEPTION) || (ioctl(sock->our_fd, FIONREAD, &size)
+                        == 0 && size)) {
+                    uint8_t *buffer = osi_malloc(L2CAP_MAX_SDU_LENGTH);
+                    /* Apparently we hijack the req_id (UINT32) to pass the pointer to the buffer to
+                     * the write complete callback, which call a free... wonder if this works on a
+                     * 64 bit platform? */
+                    /* The socket is created with SOCK_SEQPACKET, hence we read one message at
+                     * the time. The maximum size of a message is allocated to ensure data is
+                     * not lost. This is okay to do as Android uses virtual memory, hence even
+                     * if we only use a fraction of the memory it should not block for others
+                     * to use the memory. As the definition of ioctl(FIONREAD) do not clearly
+                     * define what value will be returned if multiple messages are written to
+                     * the socket before any message is read from the socket, we could
+                     * potentially risk to allocate way more memory than needed. One of the use
+                     * cases for this socket is obex where multiple 64kbyte messages are
+                     * typically written to the socket in a tight loop, hence we risk the ioctl
+                     * will return the total amount of data in the buffer, which could be
+                     * multiple 64kbyte chunks.
+                     * UPDATE: As the stack cannot handle 64kbyte buffers, the size is reduced
+                     * to around 8kbyte - and using malloc for buffer allocation here seems to
+                     * be wrong
+                     * UPDATE: Since we are responsible for freeing the buffer in the
+                     * write_complete_ind, it is OK to use malloc. */
+                    ssize_t count;
+                    OSI_NO_INTR(count = recv(fd, buffer, L2CAP_MAX_SDU_LENGTH,
+                                             MSG_NOSIGNAL | MSG_DONTWAIT));
+                    APPL_TRACE_DEBUG("btsock_l2cap_signaled - %d bytes received from socket",
+                                     count);
+
+                    // TODO(armansito): |buffer|, which is created above via
+                    // malloc, is being cast below to UINT32 to be used as
+                    // the |req_id| parameter of BTA_JvL2capWriteFixed and
+                    // BTA_JvL2capWrite. The "id" then gets freed in an
+                    // obscure callback elsewhere. We need to watch out for
+                    // this type of unsafe practice, as this is error prone
+                    // and difficult to follow.
+                    if (sock->fixed_chan) {
+                        if (BTA_JvL2capWriteFixed(sock->channel,
+                                                  (BD_ADDR*)&sock->addr,
+                                                  PTR_TO_UINT(buffer),
+                                                  btsock_l2cap_cbk, buffer,
+                                                  count,
+                                                  UINT_TO_PTR(user_id)) != BTA_JV_SUCCESS) {
+                            // On fail, free the buffer
+                            on_l2cap_write_fixed_done(buffer, count, user_id);
+                        }
+                    } else {
+                        if (BTA_JvL2capWrite(sock->handle, PTR_TO_UINT(buffer),
+                                             buffer, count,
+                                             UINT_TO_PTR(user_id)) != BTA_JV_SUCCESS) {
+                          // On fail, free the buffer
+                          on_l2cap_write_done(buffer, count, user_id);
+                        }
+                    }
+                }
+            } else
+                drop_it = TRUE;
+        }
+        if (flags & SOCK_THREAD_FD_WR) {
+            //app is ready to receive more data, tell stack to enable the data flow
+            if (flush_incoming_que_on_wr_signal_l(sock) && sock->connected)
+                btsock_thread_add_fd(pth, sock->our_fd, BTSOCK_L2CAP, SOCK_THREAD_FD_WR, sock->id);
+        }
+        if (drop_it || (flags & SOCK_THREAD_FD_EXCEPTION)) {
+            int size = 0;
+            if (drop_it || ioctl(sock->our_fd, FIONREAD, &size) != 0 || size == 0)
+                btsock_l2cap_free_l(sock);
+        }
+    }
+    pthread_mutex_unlock(&state_lock);
+}
+
diff --git a/rtkbt/code/bt/btif/src/btif_sock_rfc.c b/rtkbt/code/bt/btif/src/btif_sock_rfc.c
new file mode 100755
index 0000000..0a971fd
--- /dev/null
+++ b/rtkbt/code/bt/btif/src/btif_sock_rfc.c
@@ -0,0 +1,922 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_btif_sock_rfcomm"
+
+#include <assert.h>
+#include <errno.h>
+#include <features.h>
+#include <pthread.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include <hardware/bluetooth.h>
+#include <hardware/bt_sock.h>
+
+#include "bt_target.h"
+#include "bta_api.h"
+#include "bta_jv_api.h"
+#include "bta_jv_co.h"
+#include "btif_common.h"
+#include "btif_sock_sdp.h"
+#include "btif_sock_thread.h"
+#include "btif_sock_util.h"
+#include "btif_uid.h"
+#include "btif_util.h"
+#include "btm_api.h"
+#include "btm_int.h"
+#include "btu.h"
+#include "bt_common.h"
+#include "hcimsgs.h"
+#include "osi/include/compat.h"
+#include "osi/include/list.h"
+#include "osi/include/log.h"
+#include "osi/include/osi.h"
+#include "port_api.h"
+#include "sdp_api.h"
+
+/* The JV interface can have only one user, hence we need to call a few
+ * L2CAP functions from this file. */
+#include "btif_sock_l2cap.h"
+
+#define MAX_RFC_CHANNEL 30  // Maximum number of RFCOMM channels (1-30 inclusive).
+#define MAX_RFC_SESSION 7   // Maximum number of devices we can have an RFCOMM connection with.
+
+typedef struct {
+  int outgoing_congest : 1;
+  int pending_sdp_request : 1;
+  int doing_sdp_request : 1;
+  int server : 1;
+  int connected : 1;
+  int closing : 1;
+} flags_t;
+
+typedef struct {
+  flags_t f;
+  uint32_t id;  // Non-zero indicates a valid (in-use) slot.
+  int security;
+  int scn;      // Server channel number
+  int scn_notified;
+  bt_bdaddr_t addr;
+  int is_service_uuid_valid;
+  uint8_t service_uuid[16];
+  char service_name[256];
+  int fd;
+  int app_fd;  // Temporary storage for the half of the socketpair that's sent back to upper layers.
+  int app_uid; // UID of the app for which this socket was created.
+  int mtu;
+  uint8_t *packet;
+  int sdp_handle;
+  int rfc_handle;
+  int rfc_port_handle;
+  int role;
+  list_t *incoming_queue;
+} rfc_slot_t;
+
+static rfc_slot_t rfc_slots[MAX_RFC_CHANNEL];
+static uint32_t rfc_slot_id;
+static volatile int pth = -1; // poll thread handle
+static pthread_mutex_t slot_lock = PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP;
+static uid_set_t* uid_set = NULL;
+
+static rfc_slot_t *find_free_slot(void);
+static void cleanup_rfc_slot(rfc_slot_t *rs);
+static void jv_dm_cback(tBTA_JV_EVT event, tBTA_JV *p_data, void *user_data);
+static void *rfcomm_cback(tBTA_JV_EVT event, tBTA_JV *p_data, void *user_data);
+static bool send_app_scn(rfc_slot_t *rs);
+
+static bool is_init_done(void) {
+  return pth != -1;
+}
+
+bt_status_t btsock_rfc_init(int poll_thread_handle, uid_set_t* set) {
+  pth = poll_thread_handle;
+  uid_set = set;
+
+  memset(rfc_slots, 0, sizeof(rfc_slots));
+  for (size_t i = 0; i < ARRAY_SIZE(rfc_slots); ++i) {
+    rfc_slots[i].scn = -1;
+    rfc_slots[i].sdp_handle = 0;
+    rfc_slots[i].fd = INVALID_FD;
+    rfc_slots[i].app_fd = INVALID_FD;
+    rfc_slots[i].incoming_queue = list_new(osi_free);
+    assert(rfc_slots[i].incoming_queue != NULL);
+  }
+
+  BTA_JvEnable(jv_dm_cback);
+
+  return BT_STATUS_SUCCESS;
+}
+
+void btsock_rfc_cleanup(void) {
+  pth = -1;
+  uid_set = NULL;
+
+  pthread_mutex_lock(&slot_lock);
+  for (size_t i = 0; i < ARRAY_SIZE(rfc_slots); ++i) {
+    if (rfc_slots[i].id)
+      cleanup_rfc_slot(&rfc_slots[i]);
+    list_free(rfc_slots[i].incoming_queue);
+    rfc_slots[i].incoming_queue = NULL;
+  }
+  pthread_mutex_unlock(&slot_lock);
+}
+
+static rfc_slot_t *find_free_slot(void) {
+  for (size_t i = 0; i < ARRAY_SIZE(rfc_slots); ++i)
+    if (rfc_slots[i].fd == INVALID_FD)
+      return &rfc_slots[i];
+  return NULL;
+}
+
+static rfc_slot_t *find_rfc_slot_by_id(uint32_t id) {
+  assert(id != 0);
+
+  for (size_t i = 0; i < ARRAY_SIZE(rfc_slots); ++i)
+    if (rfc_slots[i].id == id)
+      return &rfc_slots[i];
+
+  LOG_ERROR(LOG_TAG, "%s unable to find RFCOMM slot id: %d", __func__, id);
+  return NULL;
+}
+
+static rfc_slot_t *find_rfc_slot_by_pending_sdp(void) {
+  uint32_t min_id = UINT32_MAX;
+  int slot = -1;
+  for (size_t i = 0; i < ARRAY_SIZE(rfc_slots); ++i)
+    if (rfc_slots[i].id && rfc_slots[i].f.pending_sdp_request && rfc_slots[i].id < min_id) {
+      min_id = rfc_slots[i].id;
+      slot = i;
+    }
+
+  return (slot == -1) ? NULL : &rfc_slots[slot];
+}
+
+static bool is_requesting_sdp(void) {
+  for (size_t i = 0; i < ARRAY_SIZE(rfc_slots); ++i)
+    if (rfc_slots[i].id && rfc_slots[i].f.doing_sdp_request)
+      return true;
+  return false;
+}
+
+static rfc_slot_t *alloc_rfc_slot(const bt_bdaddr_t *addr, const char *name, const uint8_t *uuid, int channel, int flags, bool server) {
+  int security = 0;
+  if(flags & BTSOCK_FLAG_ENCRYPT)
+      security |= server ? BTM_SEC_IN_ENCRYPT : BTM_SEC_OUT_ENCRYPT;
+  if(flags & BTSOCK_FLAG_AUTH)
+      security |= server ? BTM_SEC_IN_AUTHENTICATE : BTM_SEC_OUT_AUTHENTICATE;
+  if(flags & BTSOCK_FLAG_AUTH_MITM)
+      security |= server ? BTM_SEC_IN_MITM : BTM_SEC_OUT_MITM;
+  if(flags & BTSOCK_FLAG_AUTH_16_DIGIT)
+      security |= BTM_SEC_IN_MIN_16_DIGIT_PIN;
+
+  rfc_slot_t *slot = find_free_slot();
+  if (!slot) {
+    LOG_ERROR(LOG_TAG, "%s unable to find free RFCOMM slot.", __func__);
+    return NULL;
+  }
+
+  int fds[2] = { INVALID_FD, INVALID_FD };
+  if (socketpair(AF_LOCAL, SOCK_STREAM, 0, fds) == -1) {
+    LOG_ERROR(LOG_TAG, "%s error creating socketpair: %s", __func__, strerror(errno));
+    return NULL;
+  }
+
+  // Increment slot id and make sure we don't use id=0.
+  if (++rfc_slot_id == 0)
+    rfc_slot_id = 1;
+
+  slot->fd = fds[0];
+  slot->app_fd = fds[1];
+  slot->security = security;
+  slot->scn = channel;
+  slot->app_uid = -1;
+
+  if(!is_uuid_empty(uuid)) {
+    memcpy(slot->service_uuid, uuid, sizeof(slot->service_uuid));
+    slot->is_service_uuid_valid = true;
+  } else {
+    memset(slot->service_uuid, 0, sizeof(slot->service_uuid));
+    slot->is_service_uuid_valid = false;
+  }
+  if(name && *name) {
+    strlcpy(slot->service_name, name, sizeof(slot->service_name));
+  } else {
+    memset(slot->service_name, 0, sizeof(slot->service_name));
+  }
+  if (addr)
+    slot->addr = *addr;
+
+  slot->id = rfc_slot_id;
+  slot->f.server = server;
+
+  return slot;
+}
+
+static rfc_slot_t *create_srv_accept_rfc_slot(rfc_slot_t *srv_rs, const bt_bdaddr_t *addr, int open_handle, int new_listen_handle) {
+  rfc_slot_t *accept_rs = alloc_rfc_slot(addr, srv_rs->service_name, srv_rs->service_uuid, srv_rs->scn, 0, false);
+  if (!accept_rs) {
+    LOG_ERROR(LOG_TAG, "%s unable to allocate RFCOMM slot.", __func__);
+    return NULL;
+  }
+
+  accept_rs->f.server = false;
+  accept_rs->f.connected = true;
+  accept_rs->security = srv_rs->security;
+  accept_rs->mtu = srv_rs->mtu;
+  accept_rs->role = srv_rs->role;
+  accept_rs->rfc_handle = open_handle;
+  accept_rs->rfc_port_handle = BTA_JvRfcommGetPortHdl(open_handle);
+  accept_rs->app_uid = srv_rs->app_uid;
+
+  srv_rs->rfc_handle = new_listen_handle;
+  srv_rs->rfc_port_handle = BTA_JvRfcommGetPortHdl(new_listen_handle);
+
+  assert(accept_rs->rfc_port_handle != srv_rs->rfc_port_handle);
+
+  // now swap the slot id
+  uint32_t new_listen_id = accept_rs->id;
+  accept_rs->id = srv_rs->id;
+  srv_rs->id = new_listen_id;
+
+  return accept_rs;
+}
+
+bt_status_t btsock_rfc_listen(const char *service_name, const uint8_t *service_uuid, int channel, int *sock_fd, int flags, int app_uid) {
+  assert(sock_fd != NULL);
+  assert((service_uuid != NULL)
+    || (channel >= 1 && channel <= MAX_RFC_CHANNEL)
+    || ((flags & BTSOCK_FLAG_NO_SDP) != 0));
+
+  *sock_fd = INVALID_FD;
+
+  // TODO(sharvil): not sure that this check makes sense; seems like a logic error to call
+  // functions on RFCOMM sockets before initializing the module. Probably should be an assert.
+  if (!is_init_done())
+    return BT_STATUS_NOT_READY;
+
+  if((flags & BTSOCK_FLAG_NO_SDP) == 0) {
+    if(is_uuid_empty(service_uuid)) {
+      APPL_TRACE_DEBUG("BTA_JvGetChannelId: service_uuid not set AND "
+              "BTSOCK_FLAG_NO_SDP is not set - changing to SPP");
+      service_uuid = UUID_SPP;  // Use serial port profile to listen to specified channel
+    } else {
+      //Check the service_uuid. overwrite the channel # if reserved
+      int reserved_channel = get_reserved_rfc_channel(service_uuid);
+      if (reserved_channel > 0) {
+            channel = reserved_channel;
+      }
+    }
+  }
+
+  int status = BT_STATUS_FAIL;
+  pthread_mutex_lock(&slot_lock);
+
+  rfc_slot_t *slot = alloc_rfc_slot(NULL, service_name, service_uuid, channel, flags, true);
+  if (!slot) {
+    LOG_ERROR(LOG_TAG, "%s unable to allocate RFCOMM slot.", __func__);
+    goto out;
+  }
+  APPL_TRACE_DEBUG("BTA_JvGetChannelId: service_name: %s - channel: %d", service_name, channel);
+  BTA_JvGetChannelId(BTA_JV_CONN_TYPE_RFCOMM, UINT_TO_PTR(slot->id), channel);
+  *sock_fd = slot->app_fd;    // Transfer ownership of fd to caller.
+  /*TODO:
+   * We are leaking one of the app_fd's - either the listen socket, or the connection socket.
+   * WE need to close this in native, as the FD might belong to another process
+    - This is the server socket FD
+    - For accepted connections, we close the FD after passing it to JAVA.
+    - Try to simply remove the = -1 to free the FD at rs cleanup.*/
+//        close(rs->app_fd);
+  slot->app_fd = INVALID_FD;  // Drop our reference to the fd.
+  slot->app_uid = app_uid;
+  btsock_thread_add_fd(pth, slot->fd, BTSOCK_RFCOMM, SOCK_THREAD_FD_EXCEPTION, slot->id);
+
+  status = BT_STATUS_SUCCESS;
+
+out:;
+  pthread_mutex_unlock(&slot_lock);
+  return status;
+}
+
+bt_status_t btsock_rfc_connect(const bt_bdaddr_t *bd_addr, const uint8_t *service_uuid, int channel, int *sock_fd, int flags, int app_uid) {
+  assert(sock_fd != NULL);
+  assert(service_uuid != NULL || (channel >= 1 && channel <= MAX_RFC_CHANNEL));
+
+  *sock_fd = INVALID_FD;
+
+  // TODO(sharvil): not sure that this check makes sense; seems like a logic error to call
+  // functions on RFCOMM sockets before initializing the module. Probably should be an assert.
+  if (!is_init_done())
+    return BT_STATUS_NOT_READY;
+
+  int status = BT_STATUS_FAIL;
+  pthread_mutex_lock(&slot_lock);
+
+  rfc_slot_t *slot = alloc_rfc_slot(bd_addr, NULL, service_uuid, channel, flags, false);
+  if (!slot) {
+    LOG_ERROR(LOG_TAG, "%s unable to allocate RFCOMM slot.", __func__);
+    goto out;
+  }
+
+  if (is_uuid_empty(service_uuid)) {
+    tBTA_JV_STATUS ret = BTA_JvRfcommConnect(slot->security, slot->role, slot->scn, slot->addr.address, rfcomm_cback, (void *)(uintptr_t)slot->id);
+    if (ret != BTA_JV_SUCCESS) {
+      LOG_ERROR(LOG_TAG, "%s unable to initiate RFCOMM connection: %d", __func__, ret);
+      cleanup_rfc_slot(slot);
+      goto out;
+    }
+
+    if (!send_app_scn(slot)) {
+      LOG_ERROR(LOG_TAG, "%s unable to send channel number.", __func__);
+      cleanup_rfc_slot(slot);
+      goto out;
+    }
+  } else {
+    tSDP_UUID sdp_uuid;
+    sdp_uuid.len = 16;
+    memcpy(sdp_uuid.uu.uuid128, service_uuid, sizeof(sdp_uuid.uu.uuid128));
+
+    if (!is_requesting_sdp()) {
+      BTA_JvStartDiscovery((uint8_t *)bd_addr->address, 1, &sdp_uuid, (void *)(uintptr_t)slot->id);
+      slot->f.pending_sdp_request = false;
+      slot->f.doing_sdp_request = true;
+    } else {
+      slot->f.pending_sdp_request = true;
+      slot->f.doing_sdp_request = false;
+    }
+  }
+
+  *sock_fd = slot->app_fd;    // Transfer ownership of fd to caller.
+  slot->app_fd = INVALID_FD;  // Drop our reference to the fd.
+  slot->app_uid = app_uid;
+  btsock_thread_add_fd(pth, slot->fd, BTSOCK_RFCOMM, SOCK_THREAD_FD_RD, slot->id);
+  status = BT_STATUS_SUCCESS;
+
+out:;
+  pthread_mutex_unlock(&slot_lock);
+  return status;
+}
+
+static int create_server_sdp_record(rfc_slot_t *slot) {
+    if(slot->scn == 0) {
+        return false;
+    }
+  slot->sdp_handle = add_rfc_sdp_rec(slot->service_name, slot->service_uuid, slot->scn);
+  return (slot->sdp_handle > 0);
+}
+
+static void free_rfc_slot_scn(rfc_slot_t *slot) {
+  if (slot->scn <= 0)
+    return;
+
+  if(slot->f.server && !slot->f.closing && slot->rfc_handle) {
+    BTA_JvRfcommStopServer(slot->rfc_handle, (void *)(uintptr_t)slot->id);
+    slot->rfc_handle = 0;
+  }
+
+  if (slot->f.server)
+    BTM_FreeSCN(slot->scn);
+  slot->scn = 0;
+}
+
+static void cleanup_rfc_slot(rfc_slot_t *slot) {
+  if (slot->fd != INVALID_FD) {
+    shutdown(slot->fd, SHUT_RDWR);
+    close(slot->fd);
+    slot->fd = INVALID_FD;
+  }
+
+  if (slot->app_fd != INVALID_FD) {
+    close(slot->app_fd);
+    slot->app_fd = INVALID_FD;
+  }
+
+  if (slot->sdp_handle > 0) {
+    del_rfc_sdp_rec(slot->sdp_handle);
+    slot->sdp_handle = 0;
+  }
+
+  if (slot->rfc_handle && !slot->f.closing && !slot->f.server) {
+    BTA_JvRfcommClose(slot->rfc_handle, (void *)(uintptr_t)slot->id);
+    slot->rfc_handle = 0;
+  }
+
+  free_rfc_slot_scn(slot);
+  list_clear(slot->incoming_queue);
+
+  slot->rfc_port_handle = 0;
+  memset(&slot->f, 0, sizeof(slot->f));
+  slot->id = 0;
+  slot->scn_notified = false;
+}
+
+static bool send_app_scn(rfc_slot_t *slot) {
+  if(slot->scn_notified == true) {
+    //already send, just return success.
+    return true;
+  }
+  slot->scn_notified = true;
+  return sock_send_all(slot->fd, (const uint8_t*)&slot->scn, sizeof(slot->scn)) == sizeof(slot->scn);
+}
+
+static bool send_app_connect_signal(int fd, const bt_bdaddr_t* addr, int channel, int status, int send_fd) {
+  sock_connect_signal_t cs;
+  cs.size = sizeof(cs);
+  cs.bd_addr = *addr;
+  cs.channel = channel;
+  cs.status = status;
+  cs.max_rx_packet_size = 0; // not used for RFCOMM
+  cs.max_tx_packet_size = 0; // not used for RFCOMM
+  if (send_fd == INVALID_FD)
+    return sock_send_all(fd, (const uint8_t *)&cs, sizeof(cs)) == sizeof(cs);
+
+  return sock_send_fd(fd, (const uint8_t *)&cs, sizeof(cs), send_fd) == sizeof(cs);
+}
+
+static void on_cl_rfc_init(tBTA_JV_RFCOMM_CL_INIT *p_init, uint32_t id) {
+  pthread_mutex_lock(&slot_lock);
+
+  rfc_slot_t *slot = find_rfc_slot_by_id(id);
+  if (!slot)
+    goto out;
+
+  if (p_init->status == BTA_JV_SUCCESS)
+    slot->rfc_handle = p_init->handle;
+  else
+    cleanup_rfc_slot(slot);
+
+out:;
+  pthread_mutex_unlock(&slot_lock);
+}
+
+static void on_srv_rfc_listen_started(tBTA_JV_RFCOMM_START *p_start, uint32_t id) {
+  pthread_mutex_lock(&slot_lock);
+
+  rfc_slot_t *slot = find_rfc_slot_by_id(id);
+  if (!slot)
+    goto out;
+
+  if (p_start->status == BTA_JV_SUCCESS) {
+    slot->rfc_handle = p_start->handle;
+  } else
+    cleanup_rfc_slot(slot);
+
+out:;
+  pthread_mutex_unlock(&slot_lock);
+}
+
+static uint32_t on_srv_rfc_connect(tBTA_JV_RFCOMM_SRV_OPEN *p_open, uint32_t id) {
+  uint32_t new_listen_slot_id = 0;
+  pthread_mutex_lock(&slot_lock);
+
+  rfc_slot_t *srv_rs = find_rfc_slot_by_id(id);
+  if (!srv_rs)
+    goto out;
+
+  rfc_slot_t *accept_rs = create_srv_accept_rfc_slot(srv_rs, (const bt_bdaddr_t *)p_open->rem_bda, p_open->handle, p_open->new_listen_handle);
+  if (!accept_rs)
+    goto out;
+
+  // Start monitoring the socket.
+  btsock_thread_add_fd(pth, srv_rs->fd, BTSOCK_RFCOMM, SOCK_THREAD_FD_EXCEPTION, srv_rs->id);
+  btsock_thread_add_fd(pth, accept_rs->fd, BTSOCK_RFCOMM, SOCK_THREAD_FD_RD, accept_rs->id);
+  send_app_connect_signal(srv_rs->fd, &accept_rs->addr, srv_rs->scn, 0, accept_rs->app_fd);
+  accept_rs->app_fd = INVALID_FD;  // Ownership of the application fd has been transferred.
+  new_listen_slot_id = srv_rs->id;
+
+out:;
+  pthread_mutex_unlock(&slot_lock);
+  return new_listen_slot_id;
+}
+
+static void on_cli_rfc_connect(tBTA_JV_RFCOMM_OPEN *p_open, uint32_t id) {
+  pthread_mutex_lock(&slot_lock);
+
+  rfc_slot_t *slot = find_rfc_slot_by_id(id);
+  if (!slot)
+    goto out;
+
+  if (p_open->status != BTA_JV_SUCCESS) {
+    cleanup_rfc_slot(slot);
+    goto out;
+  }
+
+  slot->rfc_port_handle = BTA_JvRfcommGetPortHdl(p_open->handle);
+  memcpy(slot->addr.address, p_open->rem_bda, 6);
+
+  if (send_app_connect_signal(slot->fd, &slot->addr, slot->scn, 0, -1))
+    slot->f.connected = true;
+  else
+    LOG_ERROR(LOG_TAG, "%s unable to send connect completion signal to caller.", __func__);
+
+out:;
+  pthread_mutex_unlock(&slot_lock);
+}
+
+static void on_rfc_close(UNUSED_ATTR tBTA_JV_RFCOMM_CLOSE *p_close, uint32_t id) {
+  pthread_mutex_lock(&slot_lock);
+
+  // rfc_handle already closed when receiving rfcomm close event from stack.
+  rfc_slot_t *slot = find_rfc_slot_by_id(id);
+  if (slot)
+    cleanup_rfc_slot(slot);
+
+  pthread_mutex_unlock(&slot_lock);
+}
+
+static void on_rfc_write_done(UNUSED_ATTR tBTA_JV_RFCOMM_WRITE *p, uint32_t id) {
+  int app_uid = -1;
+  pthread_mutex_lock(&slot_lock);
+
+  rfc_slot_t *slot = find_rfc_slot_by_id(id);
+  if (slot) {
+    app_uid = slot->app_uid;
+    if (!slot->f.outgoing_congest) {
+      btsock_thread_add_fd(pth, slot->fd, BTSOCK_RFCOMM, SOCK_THREAD_FD_RD, slot->id);
+    }
+  }
+
+  pthread_mutex_unlock(&slot_lock);
+
+  uid_set_add_tx(uid_set, app_uid, p->len);
+}
+
+static void on_rfc_outgoing_congest(tBTA_JV_RFCOMM_CONG *p, uint32_t id) {
+  pthread_mutex_lock(&slot_lock);
+
+  rfc_slot_t *slot = find_rfc_slot_by_id(id);
+  if (slot) {
+    slot->f.outgoing_congest = p->cong ? 1 : 0;
+    if (!slot->f.outgoing_congest)
+      btsock_thread_add_fd(pth, slot->fd, BTSOCK_RFCOMM, SOCK_THREAD_FD_RD, slot->id);
+  }
+
+  pthread_mutex_unlock(&slot_lock);
+}
+
+static void *rfcomm_cback(tBTA_JV_EVT event, tBTA_JV *p_data, void *user_data) {
+  void *new_user_data = NULL;
+
+  switch (event) {
+    case BTA_JV_RFCOMM_START_EVT:
+      on_srv_rfc_listen_started(&p_data->rfc_start, (uintptr_t)user_data);
+      break;
+
+    case BTA_JV_RFCOMM_CL_INIT_EVT:
+      on_cl_rfc_init(&p_data->rfc_cl_init, (uintptr_t)user_data);
+      break;
+
+    case BTA_JV_RFCOMM_OPEN_EVT:
+      BTA_JvSetPmProfile(p_data->rfc_open.handle,BTA_JV_PM_ID_1,BTA_JV_CONN_OPEN);
+      on_cli_rfc_connect(&p_data->rfc_open, (uintptr_t)user_data);
+      break;
+
+    case BTA_JV_RFCOMM_SRV_OPEN_EVT:
+      BTA_JvSetPmProfile(p_data->rfc_srv_open.handle,BTA_JV_PM_ALL,BTA_JV_CONN_OPEN);
+      new_user_data = (void *)(uintptr_t)on_srv_rfc_connect(&p_data->rfc_srv_open, (uintptr_t)user_data);
+      break;
+
+    case BTA_JV_RFCOMM_CLOSE_EVT:
+      APPL_TRACE_DEBUG("BTA_JV_RFCOMM_CLOSE_EVT: user_data:%d", (uintptr_t)user_data);
+      on_rfc_close(&p_data->rfc_close, (uintptr_t)user_data);
+      break;
+
+    case BTA_JV_RFCOMM_WRITE_EVT:
+      on_rfc_write_done(&p_data->rfc_write, (uintptr_t)user_data);
+      break;
+
+    case BTA_JV_RFCOMM_CONG_EVT:
+      on_rfc_outgoing_congest(&p_data->rfc_cong, (uintptr_t)user_data);
+      break;
+
+    case BTA_JV_RFCOMM_DATA_IND_EVT:
+      // Unused.
+      break;
+
+    default:
+      LOG_ERROR(LOG_TAG, "%s unhandled event %d, slot id: %zi", __func__, event, (uintptr_t)user_data);
+      break;
+  }
+  return new_user_data;
+}
+
+static void jv_dm_cback(tBTA_JV_EVT event, tBTA_JV *p_data, void *user_data) {
+  uint32_t id = PTR_TO_UINT(user_data);
+  switch(event) {
+    case BTA_JV_GET_SCN_EVT:
+    {
+      pthread_mutex_lock(&slot_lock);
+      rfc_slot_t* rs = find_rfc_slot_by_id(id);
+      int new_scn = p_data->scn;
+
+      if(rs && (new_scn != 0))
+      {
+        rs->scn = new_scn;
+        /* BTA_JvCreateRecordByUser will only create a record if a UUID is specified,
+         * else it just allocate a RFC channel and start the RFCOMM thread - needed
+         * for the java
+         * layer to get a RFCOMM channel.
+         * If uuid is null the create_sdp_record() will be called from Java when it
+         * has received the RFCOMM and L2CAP channel numbers through the sockets.*/
+
+        // Send channel ID to java layer
+        if(!send_app_scn(rs)){
+          //closed
+          APPL_TRACE_DEBUG("send_app_scn() failed, close rs->id:%d", rs->id);
+          cleanup_rfc_slot(rs);
+        } else {
+          if(rs->is_service_uuid_valid == true) {
+            // We already have data for SDP record, create it (RFC-only profiles)
+            BTA_JvCreateRecordByUser(UINT_TO_PTR(rs->id));
+          } else {
+            APPL_TRACE_DEBUG("is_service_uuid_valid==false - don't set SDP-record, "
+                    "just start the RFCOMM server", rs->id);
+            //now start the rfcomm server after sdp & channel # assigned
+            BTA_JvRfcommStartServer(rs->security, rs->role, rs->scn, MAX_RFC_SESSION,
+                    rfcomm_cback, UINT_TO_PTR(rs->id));
+          }
+        }
+      } else if(rs) {
+        APPL_TRACE_ERROR("jv_dm_cback: Error: allocate channel %d, slot found:%p", rs->scn, rs);
+        cleanup_rfc_slot(rs);
+      }
+      pthread_mutex_unlock(&slot_lock);
+      break;
+    }
+    case BTA_JV_GET_PSM_EVT:
+    {
+      APPL_TRACE_DEBUG("Received PSM: 0x%04x", p_data->psm);
+      on_l2cap_psm_assigned(id, p_data->psm);
+      break;
+    }
+    case BTA_JV_CREATE_RECORD_EVT: {
+      pthread_mutex_lock(&slot_lock);
+
+      rfc_slot_t *slot = find_rfc_slot_by_id(id);
+      if (slot && create_server_sdp_record(slot)) {
+        // Start the rfcomm server after sdp & channel # assigned.
+        BTA_JvRfcommStartServer(slot->security, slot->role, slot->scn, MAX_RFC_SESSION, rfcomm_cback, (void *)(uintptr_t)slot->id);
+      } else if(slot) {
+        APPL_TRACE_ERROR("jv_dm_cback: cannot start server, slot found:%p", slot);
+        cleanup_rfc_slot(slot);
+      }
+
+      pthread_mutex_unlock(&slot_lock);
+      break;
+    }
+
+    case BTA_JV_DISCOVERY_COMP_EVT: {
+      pthread_mutex_lock(&slot_lock);
+      rfc_slot_t *slot = find_rfc_slot_by_id(id);
+      if (p_data->disc_comp.status == BTA_JV_SUCCESS && p_data->disc_comp.scn) {
+        if (slot && slot->f.doing_sdp_request) {
+          // Establish the connection if we successfully looked up a channel number to connect to.
+          if (BTA_JvRfcommConnect(slot->security, slot->role, p_data->disc_comp.scn, slot->addr.address, rfcomm_cback, (void *)(uintptr_t)slot->id) == BTA_JV_SUCCESS) {
+            slot->scn = p_data->disc_comp.scn;
+            slot->f.doing_sdp_request = false;
+            if (!send_app_scn(slot))
+              cleanup_rfc_slot(slot);
+          } else {
+            cleanup_rfc_slot(slot);
+          }
+        } else if (slot) {
+          // TODO(sharvil): this is really a logic error and we should probably assert.
+          LOG_ERROR(LOG_TAG, "%s SDP response returned but RFCOMM slot %d did not request SDP record.", __func__, id);
+        }
+      } else if (slot) {
+        cleanup_rfc_slot(slot);
+      }
+
+      // Find the next slot that needs to perform an SDP request and service it.
+      slot = find_rfc_slot_by_pending_sdp();
+      if (slot) {
+        tSDP_UUID sdp_uuid;
+        sdp_uuid.len = 16;
+        memcpy(sdp_uuid.uu.uuid128, slot->service_uuid, sizeof(sdp_uuid.uu.uuid128));
+        BTA_JvStartDiscovery((uint8_t *)slot->addr.address, 1, &sdp_uuid, (void *)(uintptr_t)slot->id);
+        slot->f.pending_sdp_request = false;
+        slot->f.doing_sdp_request = true;
+      }
+
+      pthread_mutex_unlock(&slot_lock);
+      break;
+    }
+
+    default:
+      APPL_TRACE_DEBUG("unhandled event:%d, slot id:%d", event, id);
+      break;
+  }
+}
+
+typedef enum {
+  SENT_FAILED,
+  SENT_NONE,
+  SENT_PARTIAL,
+  SENT_ALL,
+} sent_status_t;
+
+static sent_status_t send_data_to_app(int fd, BT_HDR *p_buf) {
+  if (p_buf->len == 0)
+    return SENT_ALL;
+
+  ssize_t sent;
+  OSI_NO_INTR(sent = send(fd, p_buf->data + p_buf->offset, p_buf->len,
+                          MSG_DONTWAIT));
+
+  if (sent == -1) {
+    if (errno == EAGAIN || errno == EWOULDBLOCK)
+      return SENT_NONE;
+    LOG_ERROR(LOG_TAG, "%s error writing RFCOMM data back to app: %s", __func__, strerror(errno));
+    return SENT_FAILED;
+  }
+
+  if (sent == 0)
+    return SENT_FAILED;
+
+  if (sent == p_buf->len)
+    return SENT_ALL;
+
+  p_buf->offset += sent;
+  p_buf->len -= sent;
+  return SENT_PARTIAL;
+}
+
+static bool flush_incoming_que_on_wr_signal(rfc_slot_t *slot) {
+  while (!list_is_empty(slot->incoming_queue)) {
+    BT_HDR *p_buf = list_front(slot->incoming_queue);
+    switch (send_data_to_app(slot->fd, p_buf)) {
+      case SENT_NONE:
+      case SENT_PARTIAL:
+        //monitor the fd to get callback when app is ready to receive data
+        btsock_thread_add_fd(pth, slot->fd, BTSOCK_RFCOMM, SOCK_THREAD_FD_WR, slot->id);
+        return true;
+
+      case SENT_ALL:
+        list_remove(slot->incoming_queue, p_buf);
+        break;
+
+      case SENT_FAILED:
+        list_remove(slot->incoming_queue, p_buf);
+        return false;
+    }
+  }
+
+  //app is ready to receive data, tell stack to start the data flow
+  //fix me: need a jv flow control api to serialize the call in stack
+  APPL_TRACE_DEBUG("enable data flow, rfc_handle:0x%x, rfc_port_handle:0x%x, user_id:%d",
+      slot->rfc_handle, slot->rfc_port_handle, slot->id);
+  extern int PORT_FlowControl_MaxCredit(uint16_t handle, bool enable);
+  PORT_FlowControl_MaxCredit(slot->rfc_port_handle, true);
+  return true;
+}
+
+void btsock_rfc_signaled(UNUSED_ATTR int fd, int flags, uint32_t user_id) {
+  pthread_mutex_lock(&slot_lock);
+
+  rfc_slot_t *slot = find_rfc_slot_by_id(user_id);
+  if (!slot)
+    goto out;
+
+  bool need_close = false;
+
+  // Data available from app, tell stack we have outgoing data.
+  if (flags & SOCK_THREAD_FD_RD && !slot->f.server) {
+    if (slot->f.connected) {
+      // Make sure there's data pending in case the peer closed the socket.
+      int size = 0;
+      if (!(flags & SOCK_THREAD_FD_EXCEPTION) || (ioctl(slot->fd, FIONREAD, &size) == 0 && size)) {
+        BTA_JvRfcommWrite(slot->rfc_handle, slot->id);
+      }
+    } else {
+      LOG_ERROR(LOG_TAG, "%s socket signaled for read while disconnected, slot: %d, channel: %d", __func__, slot->id, slot->scn);
+      need_close = true;
+    }
+  }
+
+  if (flags & SOCK_THREAD_FD_WR) {
+    // App is ready to receive more data, tell stack to enable data flow.
+    if (!slot->f.connected || !flush_incoming_que_on_wr_signal(slot)) {
+      LOG_ERROR(LOG_TAG, "%s socket signaled for write while disconnected (or write failure), slot: %d, channel: %d", __func__, slot->id, slot->scn);
+      need_close = true;
+    }
+  }
+
+  if (need_close || (flags & SOCK_THREAD_FD_EXCEPTION)) {
+    // Clean up if there's no data pending.
+    int size = 0;
+    if (need_close || ioctl(slot->fd, FIONREAD, &size) != 0 || !size)
+      cleanup_rfc_slot(slot);
+  }
+
+out:;
+  pthread_mutex_unlock(&slot_lock);
+}
+
+int bta_co_rfc_data_incoming(void *user_data, BT_HDR *p_buf) {
+  int app_uid = -1;
+  uint64_t bytes_rx = 0;
+
+  pthread_mutex_lock(&slot_lock);
+
+  int ret = 0;
+  uint32_t id = (uintptr_t)user_data;
+  rfc_slot_t *slot = find_rfc_slot_by_id(id);
+  if (!slot)
+    goto out;
+
+  app_uid = slot->app_uid;
+  bytes_rx = p_buf->len;
+
+  if (list_is_empty(slot->incoming_queue)) {
+    switch (send_data_to_app(slot->fd, p_buf)) {
+      case SENT_NONE:
+      case SENT_PARTIAL:
+        list_append(slot->incoming_queue, p_buf);
+        btsock_thread_add_fd(pth, slot->fd, BTSOCK_RFCOMM, SOCK_THREAD_FD_WR, slot->id);
+        break;
+
+      case SENT_ALL:
+        osi_free(p_buf);
+        ret = 1;  // Enable data flow.
+        break;
+
+      case SENT_FAILED:
+        osi_free(p_buf);
+        cleanup_rfc_slot(slot);
+        break;
+    }
+  } else {
+    list_append(slot->incoming_queue, p_buf);
+  }
+
+out:;
+  pthread_mutex_unlock(&slot_lock);
+
+  uid_set_add_rx(uid_set, app_uid, bytes_rx);
+
+  return ret;  // Return 0 to disable data flow.
+}
+
+int bta_co_rfc_data_outgoing_size(void *user_data, int *size) {
+  pthread_mutex_lock(&slot_lock);
+
+  uint32_t id = (uintptr_t)user_data;
+  int ret = false;
+  *size = 0;
+  rfc_slot_t *slot = find_rfc_slot_by_id(id);
+  if (!slot)
+    goto out;
+
+  if (ioctl(slot->fd, FIONREAD, size) == 0) {
+    ret = true;
+  } else {
+    LOG_ERROR(LOG_TAG, "%s unable to determine bytes remaining to be read on fd %d: %s", __func__, slot->fd, strerror(errno));
+    cleanup_rfc_slot(slot);
+  }
+
+out:;
+  pthread_mutex_unlock(&slot_lock);
+  return ret;
+}
+
+int bta_co_rfc_data_outgoing(void *user_data, uint8_t *buf, uint16_t size) {
+  pthread_mutex_lock(&slot_lock);
+
+  uint32_t id = (uintptr_t)user_data;
+  int ret = false;
+  rfc_slot_t *slot = find_rfc_slot_by_id(id);
+  if (!slot)
+    goto out;
+
+  ssize_t received;
+  OSI_NO_INTR(received = recv(slot->fd, buf, size, 0));
+
+  if(received == size) {
+    ret = true;
+  } else {
+    LOG_ERROR(LOG_TAG, "%s error receiving RFCOMM data from app: %s", __func__, strerror(errno));
+    cleanup_rfc_slot(slot);
+  }
+
+out:;
+  pthread_mutex_unlock(&slot_lock);
+  return ret;
+}
diff --git a/rtkbt/code/bt/btif/src/btif_sock_sco.c b/rtkbt/code/bt/btif/src/btif_sock_sco.c
new file mode 100755
index 0000000..4f3699f
--- /dev/null
+++ b/rtkbt/code/bt/btif/src/btif_sock_sco.c
@@ -0,0 +1,332 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_btif_sock_sco"
+
+#include <assert.h>
+#include <errno.h>
+#include <pthread.h>
+#include <string.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include <hardware/bluetooth.h>
+#include <hardware/bt_sock.h>
+
+#include "btif_common.h"
+#include "osi/include/allocator.h"
+#include "osi/include/list.h"
+#include "osi/include/log.h"
+#include "osi/include/osi.h"
+#include "osi/include/socket.h"
+#include "osi/include/thread.h"
+
+// This module provides a socket abstraction for SCO connections to a higher
+// layer. It returns file descriptors representing two types of sockets:
+// listening (server) and connected (client) sockets. No SCO data is
+// transferred across these sockets; instead, they are used to manage SCO
+// connection lifecycles while the data routing takes place over the I2S bus.
+//
+// This code bridges the gap between the BTM layer, which implements SCO
+// connections, and the Android HAL. It adapts the BTM representation of SCO
+// connections (integer handles) to a file descriptor representation usable by
+// Android's LocalSocket implementation.
+//
+// Sample flow for an incoming connection:
+//   btsock_sco_listen()       - listen for incoming connections
+//   connection_request_cb()   - incoming connection request from remote host
+//   connect_completed_cb()    - connection successfully established
+//   socket_read_ready_cb()    - local host closed SCO socket
+//   disconnect_completed_cb() - connection terminated
+
+typedef struct {
+  uint16_t sco_handle;
+  socket_t *socket;
+  bool connect_completed;
+} sco_socket_t;
+
+// TODO: verify packet types that are being sent OTA.
+static tBTM_ESCO_PARAMS sco_parameters = {
+    BTM_64KBITS_RATE,                   /* TX Bandwidth (64 kbits/sec)              */
+    BTM_64KBITS_RATE,                   /* RX Bandwidth (64 kbits/sec)              */
+    0x000a,                             /* 10 ms (HS/HF can use EV3, 2-EV3, 3-EV3)  */
+    0x0060,                             /* Inp Linear, Air CVSD, 2s Comp, 16bit     */
+    (BTM_SCO_LINK_ALL_PKT_MASK       |
+     BTM_SCO_PKT_TYPES_MASK_NO_2_EV5 |
+     BTM_SCO_PKT_TYPES_MASK_NO_3_EV5),
+     BTM_ESCO_RETRANS_POWER       /* Retransmission effort                      */
+};
+
+static sco_socket_t *sco_socket_establish_locked(bool is_listening, const bt_bdaddr_t *bd_addr, int *sock_fd);
+static sco_socket_t *sco_socket_new(void);
+static void sco_socket_free_locked(sco_socket_t *socket);
+static sco_socket_t *sco_socket_find_locked(uint16_t sco_handle);
+static void connection_request_cb(tBTM_ESCO_EVT event, tBTM_ESCO_EVT_DATA *data);
+static void connect_completed_cb(uint16_t sco_handle);
+static void disconnect_completed_cb(uint16_t sco_handle);
+static void socket_read_ready_cb(socket_t *socket, void *context);
+
+// |lock| protects all of the static variables below and
+// calls into the BTM layer.
+static pthread_mutex_t lock;
+static list_t *sco_sockets;              // Owns a collection of sco_socket_t objects.
+static sco_socket_t *listen_sco_socket;  // Not owned, do not free.
+static thread_t *thread;                 // Not owned, do not free.
+
+bt_status_t btsock_sco_init(thread_t *thread_) {
+  assert(thread_ != NULL);
+
+  sco_sockets = list_new((list_free_cb)sco_socket_free_locked);
+  if (!sco_sockets)
+    return BT_STATUS_FAIL;
+
+  pthread_mutex_init(&lock, NULL);
+
+  thread = thread_;
+  BTM_SetEScoMode(BTM_LINK_TYPE_ESCO, &sco_parameters);
+
+  return BT_STATUS_SUCCESS;
+}
+
+bt_status_t btsock_sco_cleanup(void) {
+  list_free(sco_sockets);
+  sco_sockets = NULL;
+  pthread_mutex_destroy(&lock);
+  return BT_STATUS_SUCCESS;
+}
+
+bt_status_t btsock_sco_listen(int *sock_fd, UNUSED_ATTR int flags) {
+  assert(sock_fd != NULL);
+
+  pthread_mutex_lock(&lock);
+
+  sco_socket_t *sco_socket = sco_socket_establish_locked(true, NULL, sock_fd);
+  if (sco_socket) {
+    BTM_RegForEScoEvts(sco_socket->sco_handle, connection_request_cb);
+    listen_sco_socket = sco_socket;
+  }
+
+  pthread_mutex_unlock(&lock);
+
+  return sco_socket ? BT_STATUS_SUCCESS : BT_STATUS_FAIL;
+}
+
+bt_status_t btsock_sco_connect(const bt_bdaddr_t *bd_addr, int *sock_fd, UNUSED_ATTR int flags) {
+  assert(bd_addr != NULL);
+  assert(sock_fd != NULL);
+
+  pthread_mutex_lock(&lock);
+  sco_socket_t *sco_socket = sco_socket_establish_locked(false, bd_addr, sock_fd);
+  pthread_mutex_unlock(&lock);
+
+  return (sco_socket != NULL) ? BT_STATUS_SUCCESS : BT_STATUS_FAIL;
+}
+
+// Must be called with |lock| held.
+static sco_socket_t *sco_socket_establish_locked(bool is_listening, const bt_bdaddr_t *bd_addr, int *sock_fd) {
+  int pair[2] = { INVALID_FD, INVALID_FD };
+  sco_socket_t *sco_socket = NULL;
+
+  if (socketpair(AF_LOCAL, SOCK_STREAM, 0, pair) == -1) {
+    LOG_ERROR(LOG_TAG, "%s unable to allocate socket pair: %s", __func__, strerror(errno));
+    goto error;
+  }
+
+  sco_socket = sco_socket_new();
+  if (!sco_socket) {
+    LOG_ERROR(LOG_TAG, "%s unable to allocate new SCO socket.", __func__);
+    goto error;
+  }
+
+  tBTM_STATUS status = BTM_CreateSco((uint8_t *)bd_addr, !is_listening, sco_parameters.packet_types, &sco_socket->sco_handle, connect_completed_cb, disconnect_completed_cb);
+  if (status != BTM_CMD_STARTED) {
+    LOG_ERROR(LOG_TAG, "%s unable to create SCO socket: %d", __func__, status);
+    goto error;
+  }
+
+  socket_t *socket = socket_new_from_fd(pair[1]);
+  if (!socket) {
+    LOG_ERROR(LOG_TAG, "%s unable to allocate socket from file descriptor %d.", __func__, pair[1]);
+    goto error;
+  }
+
+  *sock_fd = pair[0];           // Transfer ownership of one end to caller.
+  sco_socket->socket = socket;  // Hang on to the other end.
+  list_append(sco_sockets, sco_socket);
+
+  socket_register(socket, thread_get_reactor(thread), sco_socket, socket_read_ready_cb, NULL);
+  return sco_socket;
+
+error:;
+  if (pair[0] != INVALID_FD)
+    close(pair[0]);
+  if (pair[1] != INVALID_FD)
+    close(pair[1]);
+
+  sco_socket_free_locked(sco_socket);
+  return NULL;
+}
+
+static sco_socket_t *sco_socket_new(void) {
+  sco_socket_t *sco_socket = (sco_socket_t *)osi_calloc(sizeof(sco_socket_t));
+  sco_socket->sco_handle = BTM_INVALID_SCO_INDEX;
+  return sco_socket;
+}
+
+// Must be called with |lock| held except during teardown when we know the socket thread
+// is no longer alive.
+static void sco_socket_free_locked(sco_socket_t *sco_socket) {
+  if (!sco_socket)
+    return;
+
+  if (sco_socket->sco_handle != BTM_INVALID_SCO_INDEX)
+    BTM_RemoveSco(sco_socket->sco_handle);
+  socket_free(sco_socket->socket);
+  osi_free(sco_socket);
+}
+
+// Must be called with |lock| held.
+static sco_socket_t *sco_socket_find_locked(uint16_t sco_handle) {
+  for (const list_node_t *node = list_begin(sco_sockets); node != list_end(sco_sockets); node = list_next(node)) {
+    sco_socket_t *sco_socket = (sco_socket_t *)list_node(node);
+    if (sco_socket->sco_handle == sco_handle)
+      return sco_socket;
+  }
+  return NULL;
+}
+
+static void connection_request_cb(tBTM_ESCO_EVT event, tBTM_ESCO_EVT_DATA *data) {
+  assert(data != NULL);
+
+  // Don't care about change of link parameters, only connection requests.
+  if (event != BTM_ESCO_CONN_REQ_EVT)
+    return;
+
+  pthread_mutex_lock(&lock);
+
+  const tBTM_ESCO_CONN_REQ_EVT_DATA *conn_data = &data->conn_evt;
+  sco_socket_t *sco_socket = sco_socket_find_locked(conn_data->sco_inx);
+  int client_fd = INVALID_FD;
+
+  if (!sco_socket) {
+    LOG_ERROR(LOG_TAG, "%s unable to find sco_socket for handle: %hu", __func__, conn_data->sco_inx);
+    goto error;
+  }
+
+  if (sco_socket != listen_sco_socket) {
+    LOG_ERROR(LOG_TAG, "%s received connection request on non-listening socket handle: %hu", __func__, conn_data->sco_inx);
+    goto error;
+  }
+
+  sco_socket_t *new_sco_socket = sco_socket_establish_locked(true, NULL, &client_fd);
+  if (!new_sco_socket) {
+    LOG_ERROR(LOG_TAG, "%s unable to allocate new sco_socket.", __func__);
+    goto error;
+  }
+
+  // Swap socket->sco_handle and new_socket->sco_handle
+  uint16_t temp = sco_socket->sco_handle;
+  sco_socket->sco_handle = new_sco_socket->sco_handle;
+  new_sco_socket->sco_handle = temp;
+
+  sock_connect_signal_t connect_signal;
+  connect_signal.size = sizeof(connect_signal);
+  memcpy(&connect_signal.bd_addr, conn_data->bd_addr, sizeof(bt_bdaddr_t));
+  connect_signal.channel = 0;
+  connect_signal.status = 0;
+
+  if (socket_write_and_transfer_fd(sco_socket->socket, &connect_signal, sizeof(connect_signal), client_fd) != sizeof(connect_signal)) {
+    LOG_ERROR(LOG_TAG, "%s unable to send new file descriptor to listening socket.", __func__);
+    goto error;
+  }
+
+  BTM_RegForEScoEvts(listen_sco_socket->sco_handle, connection_request_cb);
+  BTM_EScoConnRsp(conn_data->sco_inx, HCI_SUCCESS, NULL);
+
+  pthread_mutex_unlock(&lock);
+  return;
+
+error:;
+  pthread_mutex_unlock(&lock);
+
+  if (client_fd != INVALID_FD)
+    close(client_fd);
+  BTM_EScoConnRsp(conn_data->sco_inx, HCI_ERR_HOST_REJECT_RESOURCES, NULL);
+}
+
+static void connect_completed_cb(uint16_t sco_handle) {
+  pthread_mutex_lock(&lock);
+
+  sco_socket_t *sco_socket = sco_socket_find_locked(sco_handle);
+  if (!sco_socket) {
+    LOG_ERROR(LOG_TAG, "%s SCO socket not found on connect for handle: %hu", __func__, sco_handle);
+    goto out;
+  }
+
+  // If sco_socket->socket was closed, we should tear down because there is no app-level
+  // interest in the SCO socket.
+  if (!sco_socket->socket) {
+    BTM_RemoveSco(sco_socket->sco_handle);
+    list_remove(sco_sockets, sco_socket);
+    goto out;
+  }
+
+  sco_socket->connect_completed = true;
+
+out:;
+  pthread_mutex_unlock(&lock);
+}
+
+static void disconnect_completed_cb(uint16_t sco_handle) {
+  pthread_mutex_lock(&lock);
+
+  sco_socket_t *sco_socket = sco_socket_find_locked(sco_handle);
+  if (!sco_socket) {
+    LOG_ERROR(LOG_TAG, "%s SCO socket not found on disconnect for handle: %hu", __func__, sco_handle);
+    goto out;
+  }
+
+  list_remove(sco_sockets, sco_socket);
+
+out:;
+  pthread_mutex_unlock(&lock);
+}
+
+static void socket_read_ready_cb(UNUSED_ATTR socket_t *socket, void *context) {
+  pthread_mutex_lock(&lock);
+
+  sco_socket_t *sco_socket = (sco_socket_t *)context;
+  socket_free(sco_socket->socket);
+  sco_socket->socket = NULL;
+
+  // Defer the underlying disconnect until the connection completes
+  // since the BTM code doesn't behave correctly when a disconnect
+  // request is issued while a connect is in progress. The fact that
+  // sco_socket->socket == NULL indicates to the connect callback
+  // routine that the socket is no longer desired and should be torn
+  // down.
+  if (sco_socket->connect_completed || sco_socket == listen_sco_socket) {
+    if (BTM_RemoveSco(sco_socket->sco_handle) == BTM_SUCCESS)
+      list_remove(sco_sockets, sco_socket);
+    if (sco_socket == listen_sco_socket)
+      listen_sco_socket = NULL;
+  }
+
+  pthread_mutex_unlock(&lock);
+}
diff --git a/rtkbt/code/bt/btif/src/btif_sock_sdp.c b/rtkbt/code/bt/btif/src/btif_sock_sdp.c
new file mode 100755
index 0000000..a1acaff
--- /dev/null
+++ b/rtkbt/code/bt/btif/src/btif_sock_sdp.c
@@ -0,0 +1,459 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_btif_sock_sdp"
+
+#include "btif_sock_sdp.h"
+
+#include <errno.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+
+#include <hardware/bluetooth.h>
+#include <hardware/bt_sock.h>
+
+#include "../bta/pb/bta_pbs_int.h"
+#include "../include/bta_op_api.h"
+#include "bt_target.h"
+#include "bta_api.h"
+#include "bta_jv_api.h"
+#include "btif_common.h"
+#include "btif_sock_util.h"
+#include "btif_util.h"
+#include "btm_api.h"
+#include "btm_int.h"
+#include "btu.h"
+#include "bt_common.h"
+#include "hcimsgs.h"
+#include "sdp_api.h"
+#include "utl.h"
+
+// This module provides an abstraction on top of the lower-level SDP database
+// code for registration and discovery of various bluetooth sockets.
+//
+// This code also provides for on-demand registration of "pre-registered"
+// services as a backwards compatibility function to third-party applications
+// expecting a bluez stack.
+
+// Realm Character Set -- 0 is ASCII
+#define BTA_PBS_REALM_CHARSET 0
+
+// Specifies whether or not client's user id is required during obex
+// authentication
+#define BTA_PBS_USERID_REQ FALSE
+
+static const tBTA_PBS_CFG bta_pbs_cfg = {
+  BTA_PBS_REALM_CHARSET,                          // realm_charset: Server only
+  BTA_PBS_USERID_REQ,                             // userid_req: Server only
+  (BTA_PBS_SUPF_DOWNLOAD | BTA_PBS_SURF_BROWSE),  // supported_features
+  BTA_PBS_REPOSIT_LOCAL,                          // supported_repositories
+};
+
+// object format lookup table
+#define OBEX_PUSH_NUM_FORMATS 7
+
+static const tBTA_OP_FMT bta_ops_obj_fmt[OBEX_PUSH_NUM_FORMATS] = {
+  BTA_OP_VCARD21_FMT,
+  BTA_OP_VCARD30_FMT,
+  BTA_OP_VCAL_FMT,
+  BTA_OP_ICAL_FMT,
+  BTA_OP_VNOTE_FMT,
+  BTA_OP_VMSG_FMT,
+  BTA_OP_OTHER_FMT
+};
+
+// TODO(jtgans): Figure out if we actually need this define. This is ifndef
+// defined in bt_target.h, but nowhere else, so right now, unless something
+// overrides this before bt_target.h sets it, it will always be bt_target.h's
+// version.
+#ifndef BTUI_OPS_FORMATS
+#define BTUI_OPS_FORMATS (BTA_OP_VCARD21_MASK   \
+                          | BTA_OP_VCARD30_MASK \
+                          | BTA_OP_VCAL_MASK    \
+                          | BTA_OP_ICAL_MASK    \
+                          | BTA_OP_VNOTE_MASK   \
+                          | BTA_OP_VMSG_MASK    \
+                          | BTA_OP_ANY_MASK)
+#endif
+
+#define RESERVED_SCN_PBS 19
+#define RESERVED_SCN_OPS 12
+
+#define UUID_MAX_LENGTH 16
+#define UUID_MATCHES(u1, u2) !memcmp(u1, u2, UUID_MAX_LENGTH)
+
+// Adds a protocol list and service name (if provided) to an SDP record given by
+// |sdp_handle|, and marks it as browseable. This is a shortcut for defining a
+// set of protocols that includes L2CAP, RFCOMM, and optionally OBEX. If
+// |with_obex| is |TRUE|, then an additional OBEX protocol UUID will be included
+// at the end of the protocol list.
+//
+// Returns TRUE if successful, otherwise FALSE.
+static bool create_base_record(const uint32_t sdp_handle, const char *name,
+                               const uint16_t channel, const bool with_obex) {
+  APPL_TRACE_DEBUG("create_base_record: scn: %d, name: %s, with_obex: %d",
+                   channel, name, with_obex);
+
+  // Setup the protocol list and add it.
+  tSDP_PROTOCOL_ELEM proto_list[SDP_MAX_LIST_ELEMS];
+  int num_proto_elements = with_obex ? 3 : 2;
+
+  memset(proto_list, 0, num_proto_elements * sizeof(tSDP_PROTOCOL_ELEM));
+
+  proto_list[0].protocol_uuid = UUID_PROTOCOL_L2CAP;
+  proto_list[0].num_params = 0;
+  proto_list[1].protocol_uuid = UUID_PROTOCOL_RFCOMM;
+  proto_list[1].num_params = 1;
+  proto_list[1].params[0] = channel;
+
+  if (with_obex == TRUE) {
+    proto_list[2].protocol_uuid = UUID_PROTOCOL_OBEX;
+    proto_list[2].num_params = 0;
+  }
+
+  char *stage = "protocol_list";
+  if (!SDP_AddProtocolList(sdp_handle, num_proto_elements, proto_list))
+    goto error;
+
+  // Add the name to the SDP record.
+  if (name[0] != '\0') {
+    stage = "service_name";
+    if (!SDP_AddAttribute(sdp_handle, ATTR_ID_SERVICE_NAME,
+                          TEXT_STR_DESC_TYPE, (uint32_t)(strlen(name) + 1),
+                          (uint8_t *)name))
+      goto error;
+  }
+
+  // Mark the service as browseable.
+  uint16_t list = UUID_SERVCLASS_PUBLIC_BROWSE_GROUP;
+  stage = "browseable";
+  if (!SDP_AddUuidSequence(sdp_handle, ATTR_ID_BROWSE_GROUP_LIST, 1, &list))
+    goto error;
+
+  APPL_TRACE_DEBUG("create_base_record: successfully created base service "
+                   "record, handle: 0x%08x, scn: %d, name: %s, with_obex: %d",
+                   sdp_handle, channel, name, with_obex);
+  return TRUE;
+
+error:
+  APPL_TRACE_ERROR("create_base_record: failed to create base service "
+                   "record, stage: %s, scn: %d, name: %s, with_obex: %d",
+                   stage, channel, name, with_obex);
+  return FALSE;
+}
+
+// Registers a service with the given |name|, |uuid|, and |channel| in the SDP
+// database as a generic L2CAP RFCOMM protocol, storing its |uuid| as a service
+// class sequence.
+static int add_sdp_by_uuid(const char *name,  const uint8_t *uuid,
+                           const uint16_t channel) {
+  APPL_TRACE_DEBUG("add_sdp_by_uuid: scn: %d, service_name: %s", channel, name);
+
+  uint32_t handle = SDP_CreateRecord();
+  if (handle == 0) {
+    APPL_TRACE_ERROR("add_sdp_by_uuid: failed to create sdp record, "
+                     "scn: %d, service_name: %s", channel, name);
+    return 0;
+  }
+
+  // Create the base SDP record.
+  char *stage = "create_base_record";
+  if (!create_base_record(handle, name, channel, FALSE /* with_obex */))
+    goto error;
+
+  // Convert the |uuid| into a big-endian representation and add it as a
+  // sequence.
+  uint8_t type = UUID_DESC_TYPE;
+  uint8_t type_len = UUID_MAX_LENGTH;
+  uint8_t type_buf[48];
+  // Store the address of type buf in a pointer on the stack, so we can pass
+  // a double pointer to SDP_AddSequence
+  uint8_t *type_buf_ptr = type_buf;
+
+  // Do the conversion to big-endian -- tmp is only used to iterate through the
+  // UUID array in the macro and serves no other purpose as the conversion
+  // macros are not hygenic.
+  {
+    uint8_t *tmp = type_buf;
+    ARRAY_TO_BE_STREAM(tmp, uuid, UUID_MAX_LENGTH);
+  }
+
+  stage = "service_class_sequence";
+  if (!SDP_AddSequence(handle, (uint16_t)ATTR_ID_SERVICE_CLASS_ID_LIST,
+                       1, &type, &type_len, &type_buf_ptr))
+    goto error;
+
+  APPL_TRACE_DEBUG("add_sdp_by_uuid: service registered successfully, "
+                   "service_name: %s, handle: 0x%08x", name, handle);
+  return handle;
+
+error:
+  SDP_DeleteRecord(handle);
+  APPL_TRACE_ERROR("add_sdp_by_uuid: failed to register service "
+                   "stage: %s, service_name: %s", stage, name);
+  return 0;
+}
+
+// Registers a service with the given |name| and |channel| in the SDP
+// database as a PBAP protocol.
+static int add_pbap_sdp(const char *name, const int channel) {
+  APPL_TRACE_DEBUG("add_pbap_sdp: scn %d, service_name %s", channel, name);
+
+  uint32_t handle = SDP_CreateRecord();
+  if (handle == 0) {
+    APPL_TRACE_ERROR("add_pbap_sdp: failed to create sdp record, "
+                     "service_name: %s", name);
+    return 0;
+  }
+
+  // Create the base SDP record.
+  char *stage = "create_base_record";
+  if (!create_base_record(handle, name, channel, TRUE /* with_obex */))
+    goto error;
+
+  // Add service class
+  uint16_t service = UUID_SERVCLASS_PBAP_PSE;
+  stage = "service_class";
+  if (!SDP_AddServiceClassIdList(handle, 1, &service))
+    goto error;
+
+  // Add in the phone access descriptor
+  stage = "profile_descriptor_list";
+  if (!SDP_AddProfileDescriptorList(handle,
+                                    UUID_SERVCLASS_PHONE_ACCESS,
+                                    BTA_PBS_DEFAULT_VERSION))
+    goto error;
+
+  // Set up our supported repositories
+  stage = "supported_repositories";
+  if (!SDP_AddAttribute(handle, ATTR_ID_SUPPORTED_REPOSITORIES, UINT_DESC_TYPE,
+                        1, (uint8_t*)&bta_pbs_cfg.supported_repositories))
+    goto error;
+
+  // Notify the system that we've got a new service class UUID.
+  bta_sys_add_uuid(UUID_SERVCLASS_PBAP_PSE);
+  APPL_TRACE_DEBUG("add_pbap_sdp: service registered successfully, "
+                   "service_name: %s, handle: 0x%08x", name, handle);
+
+  return handle;
+
+error:
+  SDP_DeleteRecord(handle);
+  APPL_TRACE_ERROR("add_pbap_sdp: failed to register PBAP service, stage: %s, "
+                   "service_name: %s", stage, name);
+  return 0;
+}
+// Registers a service with the given |name| and |channel| as an OBEX Push
+// protocol.
+static int add_ops_sdp(const char *name, const int channel) {
+  APPL_TRACE_DEBUG("add_ops_sdp: scn %d, service_name %s", channel, name);
+
+  uint32_t handle = SDP_CreateRecord();
+  if (handle == 0) {
+    APPL_TRACE_ERROR("add_ops_sdp: failed to create sdp record, "
+                     "service_name: %s", name);
+    return 0;
+  }
+
+  // Create the base SDP record.
+  char *stage = "create_base_record";
+  if (!create_base_record(handle, name, channel, TRUE /* with_obex */))
+    goto error;
+
+  // Add service class.
+  stage = "service_class";
+  uint16_t service = UUID_SERVCLASS_OBEX_OBJECT_PUSH;
+  if (!SDP_AddServiceClassIdList(handle, 1, &service))
+    goto error;
+
+  // Add the OBEX push profile descriptor.
+  stage = "profile_descriptor_list";
+  if (!SDP_AddProfileDescriptorList(handle, UUID_SERVCLASS_OBEX_OBJECT_PUSH,
+                                    0x0100))
+    goto error;
+
+  // Add sequence for supported types.
+  uint8_t desc_type[OBEX_PUSH_NUM_FORMATS];
+  uint8_t type_len[OBEX_PUSH_NUM_FORMATS];
+  uint8_t *type_value[OBEX_PUSH_NUM_FORMATS];
+  uint8_t j = 0;
+
+  for (int i = 0; i < OBEX_PUSH_NUM_FORMATS; i++) {
+    if ((BTUI_OPS_FORMATS >> i) & 1) {
+      type_value[j] = (uint8_t*)(&bta_ops_obj_fmt[i]);
+      desc_type[j] = UINT_DESC_TYPE;
+      type_len[j++] = 1;
+    }
+  }
+
+  stage = "supported_types";
+  if (!SDP_AddSequence(handle, (uint16_t)ATTR_ID_SUPPORTED_FORMATS_LIST,
+                       j, desc_type, type_len, type_value))
+    goto error;
+
+  // Set class of device.
+  tBTA_UTL_COD cod;
+  cod.service = BTM_COD_SERVICE_OBJ_TRANSFER;
+  stage = "class_of_device";
+  if (!utl_set_device_class(&cod, BTA_UTL_SET_COD_SERVICE_CLASS))
+    goto error;
+
+  // Notify the system that we've got a new service class UUID.
+  bta_sys_add_uuid(UUID_SERVCLASS_OBEX_OBJECT_PUSH);
+  APPL_TRACE_DEBUG("ad_maps_sdp: service registered successfully, "
+                   "service_name: %s, handle 0x%08x)", name, handle);
+
+  return handle;
+
+error:
+  SDP_DeleteRecord(handle);
+  APPL_TRACE_ERROR("add_ops_sdp: failed to register OPS service, "
+                   "stage: %s, service_name: %s", stage, name);
+  return 0;
+}
+
+// Registers a service with the given |name| and |channel| as a serial port
+// profile protocol.
+static int add_spp_sdp(const char *name, const int channel) {
+  APPL_TRACE_DEBUG("add_spp_sdp: scn %d, service_name %s", channel, name);
+
+  int handle = SDP_CreateRecord();
+  if (handle == 0) {
+    APPL_TRACE_ERROR("add_spp_sdp: failed to create sdp record, "
+                     "service_name: %s", name);
+    return 0;
+  }
+
+  // Create the base SDP record.
+  char *stage = "create_base_record";
+  if (!create_base_record(handle, name, channel, FALSE /* with_obex */))
+    goto error;
+
+  uint16_t service = UUID_SERVCLASS_SERIAL_PORT;
+  stage = "service_class";
+  if (!SDP_AddServiceClassIdList(handle, 1, &service))
+    goto error;
+
+  APPL_TRACE_DEBUG("add_spp_sdp: service registered successfully, "
+                   "service_name: %s, handle 0x%08x)", name, handle);
+
+  return handle;
+
+error:
+  SDP_DeleteRecord(handle);
+  APPL_TRACE_ERROR("add_spp_sdp: failed to register SPP service, "
+                   "stage: %s, service_name: %s", stage, name);
+  return 0;
+}
+
+// Adds an RFCOMM SDP record for a service with the given |name|, |uuid|, and
+// |channel|. This function attempts to identify the type of the service based
+// upon its |uuid|, and will override the |channel| with a reserved channel
+// number if the |uuid| matches one of the preregistered bluez SDP records.
+static int add_rfc_sdp_by_uuid(const char *name, const uint8_t *uuid,
+                               const int channel) {
+  APPL_TRACE_DEBUG("add_rfc_sdp_by_uuid: service_name: %s, channel: %d", name,
+                   channel);
+
+  /*
+   * Bluetooth Socket API relies on having preregistered bluez sdp records for
+   * HSAG, HFAG, OPP & PBAP that are mapped to rc chan 10, 11,12 & 19. Today
+   * HSAG and HFAG is routed to BRCM AG and are not using BT socket API so for
+   * now we will need to support OPP and PBAP to enable 3rd party developer apps
+   * running on BRCM Android.
+   *
+   * To do this we will check the UUID for the requested service and mimic the
+   * SDP records of bluez upon reception.  See functions add_opush() and
+   * add_pbap() in sdptool.c for actual records.
+   */
+
+  int final_channel = get_reserved_rfc_channel(uuid);
+
+  if (final_channel == -1) {
+    final_channel = channel;
+  }
+
+  int handle = 0;
+
+  if (UUID_MATCHES(UUID_OBEX_OBJECT_PUSH, uuid)) {
+    handle = add_ops_sdp(name, final_channel);
+  } else if (UUID_MATCHES(UUID_PBAP_PSE,uuid)) {
+    // PBAP Server is always channel 19
+    handle = add_pbap_sdp(name, final_channel);
+  } else if (UUID_MATCHES(UUID_SPP, uuid)) {
+    handle = add_spp_sdp(name, final_channel);
+  } else if (UUID_MATCHES(UUID_MAP_MAS,uuid)) {
+    // Record created by new SDP create record interface
+    handle = 0xff;
+  } else {
+    handle = add_sdp_by_uuid(name, uuid, final_channel);
+  }
+
+  return handle;
+}
+
+bool is_reserved_rfc_channel(const int channel) {
+  switch(channel) {
+    case RESERVED_SCN_PBS:
+    case RESERVED_SCN_OPS:
+      return TRUE;
+  }
+
+  return FALSE;
+}
+
+int get_reserved_rfc_channel(const uint8_t *uuid) {
+  if (UUID_MATCHES(UUID_PBAP_PSE, uuid)) {
+    return RESERVED_SCN_PBS;
+  } else if (UUID_MATCHES(UUID_OBEX_OBJECT_PUSH, uuid)) {
+    return RESERVED_SCN_OPS;
+  }
+
+  return -1;
+}
+
+// Adds an SDP record to the SDP database using the given |name|, |uuid|, and
+// |channel|. Note that if the |uuid| is empty, the |uuid| will be set based
+// upon the |channel| passed in.
+int add_rfc_sdp_rec(const char *name, const uint8_t *uuid, const int channel) {
+  if (is_uuid_empty(uuid)) {
+    switch(channel) {
+      case RESERVED_SCN_PBS: // PBAP Reserved port
+        uuid = UUID_PBAP_PSE;
+        break;
+
+      case RESERVED_SCN_OPS:
+        uuid = UUID_OBEX_OBJECT_PUSH;
+        break;
+
+      default:
+        uuid = UUID_SPP;
+        break;
+    }
+  }
+
+  return add_rfc_sdp_by_uuid(name, uuid, channel);
+}
+
+// Deletes an SDP record with the given |handle|.
+void del_rfc_sdp_rec(int handle) {
+  APPL_TRACE_DEBUG("del_rfc_sdp_rec: handle:0x%x", handle);
+
+  if ((handle != -1) && (handle != 0))
+    BTA_JvDeleteRecord(handle);
+}
diff --git a/rtkbt/code/bt/btif/src/btif_sock_thread.c b/rtkbt/code/bt/btif/src/btif_sock_thread.c
new file mode 100755
index 0000000..889c259
--- /dev/null
+++ b/rtkbt/code/bt/btif/src/btif_sock_thread.c
@@ -0,0 +1,602 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/************************************************************************************
+ *
+ *  Filename:      btif_sock_thread.c
+ *
+ *  Description:   socket select thread
+ *
+ *
+ ***********************************************************************************/
+
+#define LOG_TAG "bt_btif_sock"
+
+#include "btif_sock_thread.h"
+
+#include <alloca.h>
+#include <ctype.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <features.h>
+#include <pthread.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/poll.h>
+#include <sys/select.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <sys/un.h>
+#include <time.h>
+#include <unistd.h>
+
+#include "bta_api.h"
+#include "btif_common.h"
+#include "btif_sock.h"
+#include "btif_sock_util.h"
+#include "btif_util.h"
+#include "osi/include/socket_utils/sockets.h"
+
+#define asrt(s) if(!(s)) APPL_TRACE_ERROR("## %s assert %s failed at line:%d ##",__FUNCTION__, #s, __LINE__)
+#define print_events(events) do { \
+    APPL_TRACE_DEBUG("print poll event:%x", events); \
+    if (events & POLLIN) APPL_TRACE_DEBUG(  "   POLLIN "); \
+    if (events & POLLPRI) APPL_TRACE_DEBUG( "   POLLPRI "); \
+    if (events & POLLOUT) APPL_TRACE_DEBUG( "   POLLOUT "); \
+    if (events & POLLERR) APPL_TRACE_DEBUG( "   POLLERR "); \
+    if (events & POLLHUP) APPL_TRACE_DEBUG( "   POLLHUP "); \
+    if (events & POLLNVAL) APPL_TRACE_DEBUG("   POLLNVAL "); \
+    if (events & POLLRDHUP) APPL_TRACE_DEBUG("   POLLRDHUP"); \
+    } while(0)
+
+#define MAX_THREAD 8
+#define MAX_POLL 64
+#define POLL_EXCEPTION_EVENTS (POLLHUP | POLLRDHUP | POLLERR | POLLNVAL)
+#define IS_EXCEPTION(e) ((e) & POLL_EXCEPTION_EVENTS)
+#define IS_READ(e) ((e) & POLLIN)
+#define IS_WRITE(e) ((e) & POLLOUT)
+/*cmd executes in socket poll thread */
+#define CMD_WAKEUP       1
+#define CMD_EXIT         2
+#define CMD_ADD_FD       3
+#define CMD_REMOVE_FD    4
+#define CMD_USER_PRIVATE 5
+
+typedef struct {
+    struct pollfd pfd;
+    uint32_t user_id;
+    int type;
+    int flags;
+} poll_slot_t;
+typedef struct {
+    int cmd_fdr, cmd_fdw;
+    int poll_count;
+    poll_slot_t ps[MAX_POLL];
+    int psi[MAX_POLL]; //index of poll slot
+    volatile pthread_t thread_id;
+    btsock_signaled_cb callback;
+    btsock_cmd_cb cmd_callback;
+    int used;
+} thread_slot_t;
+static thread_slot_t ts[MAX_THREAD];
+
+static void *sock_poll_thread(void *arg);
+static inline void close_cmd_fd(int h);
+
+static inline void add_poll(int h, int fd, int type, int flags, uint32_t user_id);
+
+static pthread_mutex_t thread_slot_lock = PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP;
+
+static inline int create_thread(void *(*start_routine)(void *), void * arg,
+                                pthread_t * thread_id)
+{
+    pthread_attr_t thread_attr;
+    pthread_attr_init(&thread_attr);
+    pthread_attr_setdetachstate(&thread_attr, PTHREAD_CREATE_JOINABLE);
+    int policy;
+    int min_pri=0;
+	int ret = -1;
+    struct sched_param param;
+
+    if ((ret = pthread_create(thread_id, &thread_attr, start_routine, arg))!=0 )
+    {
+        APPL_TRACE_ERROR("pthread_create : %s", strerror(errno));
+        return ret;
+    }
+    /* We need to lower the priority of this thread to ensure the stack gets
+     * priority over transfer to a socket */
+    pthread_getschedparam(*thread_id, &policy, &param);
+    min_pri = sched_get_priority_min(policy);
+    if (param.sched_priority > min_pri) {
+        param.sched_priority -= 1;
+    }
+    pthread_setschedparam(*thread_id, policy, &param);
+    return ret;
+}
+static void init_poll(int cmd_fd);
+static int alloc_thread_slot()
+{
+    int i;
+    //revserd order to save guard uninitialized access to 0 index
+    for(i = MAX_THREAD - 1; i >=0; i--)
+    {
+        APPL_TRACE_DEBUG("ts[%d].used:%d", i, ts[i].used);
+        if(!ts[i].used)
+        {
+            ts[i].used = 1;
+            return i;
+        }
+    }
+    APPL_TRACE_ERROR("execeeded max thread count");
+    return -1;
+}
+static void free_thread_slot(int h)
+{
+    if(0 <= h && h < MAX_THREAD)
+    {
+        close_cmd_fd(h);
+        ts[h].used = 0;
+    }
+    else APPL_TRACE_ERROR("invalid thread handle:%d", h);
+}
+int btsock_thread_init()
+{
+    static int initialized;
+    APPL_TRACE_DEBUG("in initialized:%d", initialized);
+    if(!initialized)
+    {
+        initialized = 1;
+        int h;
+        for(h = 0; h < MAX_THREAD; h++)
+        {
+            ts[h].cmd_fdr = ts[h].cmd_fdw = -1;
+            ts[h].used = 0;
+            ts[h].thread_id = -1;
+            ts[h].poll_count = 0;
+            ts[h].callback = NULL;
+            ts[h].cmd_callback = NULL;
+        }
+    }
+    return TRUE;
+}
+int btsock_thread_create(btsock_signaled_cb callback, btsock_cmd_cb cmd_callback)
+{
+    asrt(callback || cmd_callback);
+    pthread_mutex_lock(&thread_slot_lock);
+    int h = alloc_thread_slot();
+    pthread_mutex_unlock(&thread_slot_lock);
+    APPL_TRACE_DEBUG("alloc_thread_slot ret:%d", h);
+    if(h >= 0)
+    {
+        init_poll(h);
+        pthread_t thread;
+        int status = create_thread(sock_poll_thread, (void*)(uintptr_t)h, &thread);
+        if (status)
+        {
+            APPL_TRACE_ERROR("create_thread failed: %s", strerror(status));
+            free_thread_slot(h);
+            return -1;
+        }
+
+        ts[h].thread_id = thread;
+        APPL_TRACE_DEBUG("h:%d, thread id:%d", h, ts[h].thread_id);
+        ts[h].callback = callback;
+        ts[h].cmd_callback = cmd_callback;
+    }
+    return h;
+}
+
+/* create dummy socket pair used to wake up select loop */
+static inline void init_cmd_fd(int h)
+{
+    asrt(ts[h].cmd_fdr == -1 && ts[h].cmd_fdw == -1);
+    if(socketpair(AF_UNIX, SOCK_STREAM, 0, &ts[h].cmd_fdr) < 0)
+    {
+        APPL_TRACE_ERROR("socketpair failed: %s", strerror(errno));
+        return;
+    }
+    APPL_TRACE_DEBUG("h:%d, cmd_fdr:%d, cmd_fdw:%d", h, ts[h].cmd_fdr, ts[h].cmd_fdw);
+    //add the cmd fd for read & write
+    add_poll(h, ts[h].cmd_fdr, 0, SOCK_THREAD_FD_RD, 0);
+}
+static inline void close_cmd_fd(int h)
+{
+    if(ts[h].cmd_fdr != -1)
+    {
+        close(ts[h].cmd_fdr);
+        ts[h].cmd_fdr = -1;
+    }
+    if(ts[h].cmd_fdw != -1)
+    {
+        close(ts[h].cmd_fdw);
+        ts[h].cmd_fdw = -1;
+    }
+}
+typedef struct
+{
+    int id;
+    int fd;
+    int type;
+    int flags;
+    uint32_t user_id;
+} sock_cmd_t;
+int btsock_thread_add_fd(int h, int fd, int type, int flags, uint32_t user_id)
+{
+    if(h < 0 || h >= MAX_THREAD)
+    {
+        APPL_TRACE_ERROR("invalid bt thread handle:%d", h);
+        return FALSE;
+    }
+    if(ts[h].cmd_fdw == -1)
+    {
+        APPL_TRACE_ERROR("cmd socket is not created. socket thread may not initialized");
+        return FALSE;
+    }
+    if(flags & SOCK_THREAD_ADD_FD_SYNC)
+    {
+        //must executed in socket poll thread
+        if(ts[h].thread_id == pthread_self())
+        {
+            //cleanup one-time flags
+            flags &= ~SOCK_THREAD_ADD_FD_SYNC;
+            add_poll(h, fd, type, flags, user_id);
+            return TRUE;
+        }
+        APPL_TRACE_DEBUG("THREAD_ADD_FD_SYNC is not called in poll thread, fallback to async");
+    }
+    sock_cmd_t cmd = {CMD_ADD_FD, fd, type, flags, user_id};
+    APPL_TRACE_DEBUG("adding fd:%d, flags:0x%x", fd, flags);
+
+    ssize_t ret;
+    OSI_NO_INTR(ret = send(ts[h].cmd_fdw, &cmd, sizeof(cmd), 0));
+
+    return ret == sizeof(cmd);
+}
+
+bool btsock_thread_remove_fd_and_close(int thread_handle, int fd)
+{
+    if (thread_handle < 0 || thread_handle >= MAX_THREAD)
+    {
+        APPL_TRACE_ERROR("%s invalid thread handle: %d", __func__, thread_handle);
+        return false;
+    }
+    if (fd == -1)
+    {
+        APPL_TRACE_ERROR("%s invalid file descriptor.", __func__);
+        return false;
+    }
+
+    sock_cmd_t cmd = {CMD_REMOVE_FD, fd, 0, 0, 0};
+
+    ssize_t ret;
+    OSI_NO_INTR(ret = send(ts[thread_handle].cmd_fdw, &cmd, sizeof(cmd), 0));
+
+    return ret == sizeof(cmd);
+}
+
+int btsock_thread_post_cmd(int h, int type, const unsigned char* data, int size, uint32_t user_id)
+{
+    if(h < 0 || h >= MAX_THREAD)
+    {
+        APPL_TRACE_ERROR("invalid bt thread handle:%d", h);
+        return FALSE;
+    }
+    if(ts[h].cmd_fdw == -1)
+    {
+        APPL_TRACE_ERROR("cmd socket is not created. socket thread may not initialized");
+        return FALSE;
+    }
+    sock_cmd_t cmd = {CMD_USER_PRIVATE, 0, type, size, user_id};
+    APPL_TRACE_DEBUG("post cmd type:%d, size:%d, h:%d, ", type, size, h);
+    sock_cmd_t* cmd_send = &cmd;
+    int size_send = sizeof(cmd);
+    if(data && size)
+    {
+        size_send = sizeof(cmd) + size;
+        cmd_send = (sock_cmd_t*)alloca(size_send);
+        if(cmd_send)
+        {
+            *cmd_send = cmd;
+            memcpy(cmd_send + 1, data, size);
+        }
+        else
+        {
+            APPL_TRACE_ERROR("alloca failed at h:%d, cmd type:%d, size:%d", h, type, size_send);
+            return FALSE;
+        }
+    }
+
+    ssize_t ret;
+    OSI_NO_INTR(ret = send(ts[h].cmd_fdw, cmd_send, size_send, 0));
+
+    return ret == size_send;
+}
+int btsock_thread_wakeup(int h)
+{
+    if(h < 0 || h >= MAX_THREAD)
+    {
+        APPL_TRACE_ERROR("invalid bt thread handle:%d", h);
+        return FALSE;
+    }
+    if(ts[h].cmd_fdw == -1)
+    {
+        APPL_TRACE_ERROR("thread handle:%d, cmd socket is not created", h);
+        return FALSE;
+    }
+    sock_cmd_t cmd = {CMD_WAKEUP, 0, 0, 0, 0};
+
+    ssize_t ret;
+    OSI_NO_INTR(ret = send(ts[h].cmd_fdw, &cmd, sizeof(cmd), 0));
+
+    return ret == sizeof(cmd);
+}
+int btsock_thread_exit(int h)
+{
+    if(h < 0 || h >= MAX_THREAD)
+    {
+        APPL_TRACE_ERROR("invalid bt thread handle:%d", h);
+        return FALSE;
+    }
+    if(ts[h].cmd_fdw == -1)
+    {
+        APPL_TRACE_ERROR("cmd socket is not created");
+        return FALSE;
+    }
+    sock_cmd_t cmd = {CMD_EXIT, 0, 0, 0, 0};
+
+    ssize_t ret;
+    OSI_NO_INTR(ret = send(ts[h].cmd_fdw, &cmd, sizeof(cmd), 0));
+
+    if (ret == sizeof(cmd)) {
+        pthread_join(ts[h].thread_id, 0);
+        pthread_mutex_lock(&thread_slot_lock);
+        free_thread_slot(h);
+        pthread_mutex_unlock(&thread_slot_lock);
+        return TRUE;
+    }
+    return FALSE;
+}
+static void init_poll(int h)
+{
+    int i;
+    ts[h].poll_count = 0;
+    ts[h].thread_id = -1;
+    ts[h].callback = NULL;
+    ts[h].cmd_callback = NULL;
+    for(i = 0; i < MAX_POLL; i++)
+    {
+        ts[h].ps[i].pfd.fd = -1;
+        ts[h].psi[i] = -1;
+    }
+    init_cmd_fd(h);
+}
+static inline unsigned int flags2pevents(int flags)
+{
+    unsigned int pevents = 0;
+    if(flags & SOCK_THREAD_FD_WR)
+        pevents |= POLLOUT;
+    if(flags & SOCK_THREAD_FD_RD)
+        pevents |= POLLIN;
+    pevents |= POLL_EXCEPTION_EVENTS;
+    return pevents;
+}
+
+static inline void set_poll(poll_slot_t* ps, int fd, int type, int flags, uint32_t user_id)
+{
+    ps->pfd.fd = fd;
+    ps->user_id = user_id;
+    if(ps->type != 0 && ps->type != type)
+        APPL_TRACE_ERROR("poll socket type should not changed! type was:%d, type now:%d", ps->type, type);
+    ps->type = type;
+    ps->flags = flags;
+    ps->pfd.events = flags2pevents(flags);
+    ps->pfd.revents = 0;
+}
+static inline void add_poll(int h, int fd, int type, int flags, uint32_t user_id)
+{
+    asrt(fd != -1);
+    int i;
+    int empty = -1;
+    poll_slot_t* ps = ts[h].ps;
+
+    for(i = 0; i < MAX_POLL; i++)
+    {
+        if(ps[i].pfd.fd == fd)
+        {
+            asrt(ts[h].poll_count < MAX_POLL);
+
+            set_poll(&ps[i], fd, type, flags | ps[i].flags, user_id);
+            return;
+        }
+        else if(empty < 0 && ps[i].pfd.fd == -1)
+            empty = i;
+    }
+    if(empty >= 0)
+    {
+        asrt(ts[h].poll_count < MAX_POLL);
+        set_poll(&ps[empty], fd, type, flags, user_id);
+        ++ts[h].poll_count;
+        return;
+    }
+    APPL_TRACE_ERROR("exceeded max poll slot:%d!", MAX_POLL);
+}
+static inline void remove_poll(int h, poll_slot_t* ps, int flags)
+{
+    if(flags == ps->flags)
+    {
+        //all monitored events signaled. To remove it, just clear the slot
+        --ts[h].poll_count;
+        memset(ps, 0, sizeof(*ps));
+        ps->pfd.fd = -1;
+    }
+    else
+    {
+        //one read or one write monitor event signaled, removed the accordding bit
+        ps->flags &= ~flags;
+        //update the poll events mask
+        ps->pfd.events = flags2pevents(ps->flags);
+    }
+}
+static int process_cmd_sock(int h)
+{
+    sock_cmd_t cmd = {-1, 0, 0, 0, 0};
+    int fd = ts[h].cmd_fdr;
+
+    ssize_t ret;
+    OSI_NO_INTR(ret = recv(fd, &cmd, sizeof(cmd), MSG_WAITALL));
+
+    if (ret != sizeof(cmd))
+    {
+        APPL_TRACE_ERROR("recv cmd errno:%d", errno);
+        return FALSE;
+    }
+    APPL_TRACE_DEBUG("cmd.id:%d", cmd.id);
+    switch(cmd.id)
+    {
+        case CMD_ADD_FD:
+            add_poll(h, cmd.fd, cmd.type, cmd.flags, cmd.user_id);
+            break;
+        case CMD_REMOVE_FD:
+            for (int i = 1; i < MAX_POLL; ++i)
+            {
+                poll_slot_t *poll_slot = &ts[h].ps[i];
+                if (poll_slot->pfd.fd == cmd.fd)
+                {
+                    remove_poll(h, poll_slot, poll_slot->flags);
+                    break;
+                }
+            }
+            close(cmd.fd);
+            break;
+        case CMD_WAKEUP:
+            break;
+        case CMD_USER_PRIVATE:
+            asrt(ts[h].cmd_callback);
+            if(ts[h].cmd_callback)
+                ts[h].cmd_callback(fd, cmd.type, cmd.flags, cmd.user_id);
+            break;
+        case CMD_EXIT:
+            return FALSE;
+        default:
+            APPL_TRACE_DEBUG("unknown cmd: %d", cmd.id);
+             break;
+    }
+    return TRUE;
+}
+static void process_data_sock(int h, struct pollfd *pfds, int count)
+{
+    asrt(count <= ts[h].poll_count);
+    int i;
+    for( i= 1; i < ts[h].poll_count; i++)
+    {
+        if(pfds[i].revents)
+        {
+            int ps_i = ts[h].psi[i];
+            asrt(pfds[i].fd == ts[h].ps[ps_i].pfd.fd);
+            uint32_t user_id = ts[h].ps[ps_i].user_id;
+            int type = ts[h].ps[ps_i].type;
+            int flags = 0;
+            print_events(pfds[i].revents);
+            if(IS_READ(pfds[i].revents))
+            {
+                flags |= SOCK_THREAD_FD_RD;
+            }
+            if(IS_WRITE(pfds[i].revents))
+            {
+                flags |= SOCK_THREAD_FD_WR;
+            }
+            if(IS_EXCEPTION(pfds[i].revents))
+            {
+                flags |= SOCK_THREAD_FD_EXCEPTION;
+                //remove the whole slot not flags
+                remove_poll(h, &ts[h].ps[ps_i], ts[h].ps[ps_i].flags);
+            }
+            else if(flags)
+                 remove_poll(h, &ts[h].ps[ps_i], flags); //remove the monitor flags that already processed
+            if(flags)
+                ts[h].callback(pfds[i].fd, type, flags, user_id);
+        }
+    }
+}
+
+static void prepare_poll_fds(int h, struct pollfd* pfds)
+{
+    int count = 0;
+    int ps_i = 0;
+    int pfd_i = 0;
+    asrt(ts[h].poll_count <= MAX_POLL);
+    memset(pfds, 0, sizeof(pfds[0])*ts[h].poll_count);
+    while(count < ts[h].poll_count)
+    {
+        if(ps_i >= MAX_POLL)
+        {
+            APPL_TRACE_ERROR("exceed max poll range, ps_i:%d, MAX_POLL:%d, count:%d, ts[h].poll_count:%d",
+                    ps_i, MAX_POLL, count, ts[h].poll_count);
+            return;
+        }
+        if(ts[h].ps[ps_i].pfd.fd >= 0)
+        {
+            pfds[pfd_i] =  ts[h].ps[ps_i].pfd;
+            ts[h].psi[pfd_i] = ps_i;
+            count++;
+            pfd_i++;
+        }
+        ps_i++;
+    }
+}
+static void *sock_poll_thread(void *arg)
+{
+    struct pollfd pfds[MAX_POLL];
+    memset(pfds, 0, sizeof(pfds));
+    int h = (intptr_t)arg;
+    for(;;)
+    {
+        prepare_poll_fds(h, pfds);
+        int ret;
+        OSI_NO_INTR(ret = poll(pfds, ts[h].poll_count, -1));
+        if(ret == -1)
+        {
+            APPL_TRACE_ERROR("poll ret -1, exit the thread, errno:%d, err:%s", errno, strerror(errno));
+            break;
+        }
+        if(ret != 0)
+        {
+            int need_process_data_fd = TRUE;
+            if(pfds[0].revents) //cmd fd always is the first one
+            {
+                asrt(pfds[0].fd == ts[h].cmd_fdr);
+                if(!process_cmd_sock(h))
+                {
+                    APPL_TRACE_DEBUG("h:%d, process_cmd_sock return false, exit...", h);
+                    break;
+                }
+                if(ret == 1)
+                    need_process_data_fd = FALSE;
+                else ret--; //exclude the cmd fd
+            }
+            if(need_process_data_fd)
+                process_data_sock(h, pfds, ret);
+        }
+        else {APPL_TRACE_DEBUG("no data, select ret: %d", ret)};
+    }
+    ts[h].thread_id = -1;
+    APPL_TRACE_DEBUG("socket poll thread exiting, h:%d", h);
+    return 0;
+}
diff --git a/rtkbt/code/bt/btif/src/btif_sock_util.c b/rtkbt/code/bt/btif/src/btif_sock_util.c
new file mode 100755
index 0000000..19385f0
--- /dev/null
+++ b/rtkbt/code/bt/btif/src/btif_sock_util.c
@@ -0,0 +1,244 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_btif_sock"
+
+#include "btif_sock_util.h"
+
+#include <arpa/inet.h>
+#include <errno.h>
+#include <netinet/in.h>
+#include <netinet/tcp.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <sys/un.h>
+#include <unistd.h>
+
+#include <hardware/bluetooth.h>
+#include <hardware/bt_sock.h>
+
+#include "bt_target.h"
+#include "bta_api.h"
+#include "bta_jv_api.h"
+#include "bta_jv_co.h"
+#include "btif_common.h"
+#include "btif_sock_sdp.h"
+#include "btif_sock_thread.h"
+#include "btif_util.h"
+#include "btm_api.h"
+#include "btm_int.h"
+#include "btu.h"
+#include "bt_common.h"
+#include "hcimsgs.h"
+#include "osi/include/log.h"
+#include "port_api.h"
+#include "sdp_api.h"
+
+#define asrt(s) if(!(s)) BTIF_TRACE_ERROR("## %s assert %s failed at line:%d ##",__FUNCTION__, #s, __LINE__)
+
+int sock_send_all(int sock_fd, const uint8_t* buf, int len)
+{
+    int s = len;
+
+    while(s)
+    {
+        ssize_t ret;
+        OSI_NO_INTR(ret = send(sock_fd, buf, s, 0));
+        if(ret <= 0)
+        {
+            BTIF_TRACE_ERROR("sock fd:%d send errno:%d, ret:%d", sock_fd, errno, ret);
+            return -1;
+        }
+        buf += ret;
+        s -= ret;
+    }
+    return len;
+}
+int sock_recv_all(int sock_fd, uint8_t* buf, int len)
+{
+    int r = len;
+
+    while(r)
+    {
+        ssize_t ret;
+        OSI_NO_INTR(ret = recv(sock_fd, buf, r, MSG_WAITALL));
+        if(ret <= 0)
+        {
+            BTIF_TRACE_ERROR("sock fd:%d recv errno:%d, ret:%d", sock_fd, errno, ret);
+            return -1;
+        }
+        buf += ret;
+        r -= ret;
+    }
+    return len;
+}
+
+int sock_send_fd(int sock_fd, const uint8_t* buf, int len, int send_fd)
+{
+    struct msghdr msg;
+    unsigned char *buffer = (unsigned char *)buf;
+    memset(&msg, 0, sizeof(msg));
+
+    struct cmsghdr *cmsg;
+    char msgbuf[CMSG_SPACE(1)];
+    asrt(send_fd != -1);
+    if(sock_fd == -1 || send_fd == -1)
+        return -1;
+    // Add any pending outbound file descriptors to the message
+           // See "man cmsg" really
+    msg.msg_control = msgbuf;
+    msg.msg_controllen = sizeof msgbuf;
+    cmsg = CMSG_FIRSTHDR(&msg);
+    cmsg->cmsg_level = SOL_SOCKET;
+    cmsg->cmsg_type = SCM_RIGHTS;
+    cmsg->cmsg_len = CMSG_LEN(sizeof send_fd);
+    memcpy(CMSG_DATA(cmsg), &send_fd, sizeof send_fd);
+
+    // We only write our msg_control during the first write
+    int ret_len = len;
+    while (len > 0) {
+        struct iovec iv;
+        memset(&iv, 0, sizeof(iv));
+
+        iv.iov_base = buffer;
+        iv.iov_len = len;
+
+        msg.msg_iov = &iv;
+        msg.msg_iovlen = 1;
+
+        ssize_t ret;
+        OSI_NO_INTR(ret = sendmsg(sock_fd, &msg, MSG_NOSIGNAL));
+        if (ret < 0) {
+            BTIF_TRACE_ERROR("fd:%d, send_fd:%d, sendmsg ret:%d, errno:%d, %s",
+                              sock_fd, send_fd, (int)ret, errno, strerror(errno));
+            ret_len = -1;
+            break;
+        }
+
+        buffer += ret;
+        len -= ret;
+
+        // Wipes out any msg_control too
+        memset(&msg, 0, sizeof(msg));
+    }
+    BTIF_TRACE_DEBUG("close fd:%d after sent", send_fd);
+    // TODO: This seems wrong - if the FD is not opened in JAVA before this is called
+    //       we get a "socket closed" exception in java, when reading from the socket...
+    close(send_fd);
+    return ret_len;
+}
+
+static const char* hex_table = "0123456789abcdef";
+static inline void byte2hex(const char* data, char** str)
+{
+    **str = hex_table[(*data >> 4) & 0xf];
+    ++*str;
+    **str = hex_table[*data & 0xf];
+    ++*str;
+}
+static inline void byte2char(const char* data, char** str)
+{
+    **str = *data < ' ' ? '.' : *data > '~' ? '.' : *data;
+    ++(*str);
+}
+static inline void word2hex(const char* data, char** hex)
+{
+    byte2hex(&data[1], hex);
+    byte2hex(&data[0], hex);
+}
+void dump_bin(const char* title, const char* data, int size)
+{
+    char line_buff[256];
+    char *line;
+    int i, j, addr;
+    const int width = 16;
+    LOG_DEBUG(LOG_TAG, "%s, size:%d, dump started {", title, size);
+    if(size <= 0)
+        return;
+    //write offset
+    line = line_buff;
+    *line++ = ' ';
+    *line++ = ' ';
+    *line++ = ' ';
+    *line++ = ' ';
+    *line++ = ' ';
+    *line++ = ' ';
+    for(j = 0; j < width; j++)
+    {
+        byte2hex((const char*)&j, &line);
+        *line++ = ' ';
+    }
+    *line = 0;
+    LOG_DEBUG(LOG_TAG, "%s", line_buff);
+
+    for(i = 0; i < size / width; i++)
+    {
+        line = line_buff;
+        //write address:
+        addr = i*width;
+        word2hex((const char*)&addr, &line);
+        *line++ = ':'; *line++ = ' ';
+        //write hex of data
+        for(j = 0; j < width; j++)
+        {
+            byte2hex(&data[j], &line);
+            *line++ = ' ';
+        }
+        //write char of data
+        for(j = 0; j < width; j++)
+            byte2char(data++, &line);
+        //wirte the end of line
+        *line = 0;
+        //output the line
+        LOG_DEBUG(LOG_TAG, "%s", line_buff);
+    }
+    //last line of left over if any
+    int leftover = size % width;
+    if(leftover > 0)
+    {
+        line = line_buff;
+        //write address:
+        addr = i*width;
+        word2hex((const char*)&addr, &line);
+        *line++ = ':'; *line++ = ' ';
+        //write hex of data
+        for(j = 0; j < leftover; j++) {
+            byte2hex(&data[j], &line);
+            *line++ = ' ';
+        }
+        //write hex padding
+        for(; j < width; j++) {
+            *line++ = ' ';
+            *line++ = ' ';
+            *line++ = ' ';
+        }
+        //write char of data
+        for(j = 0; j < leftover; j++)
+            byte2char(data++, &line);
+        //write the end of line
+        *line = 0;
+        //output the line
+        LOG_DEBUG(LOG_TAG, "%s", line_buff);
+    }
+    LOG_DEBUG(LOG_TAG, "%s, size:%d, dump ended }", title, size);
+}
+
diff --git a/rtkbt/code/bt/btif/src/btif_storage.c b/rtkbt/code/bt/btif/src/btif_storage.c
new file mode 100755
index 0000000..7a50547
--- /dev/null
+++ b/rtkbt/code/bt/btif/src/btif_storage.c
@@ -0,0 +1,1497 @@
+/******************************************************************************
+ *
+ *  Copyright (c) 2014 The Android Open Source Project
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/************************************************************************************
+ *
+ *  Filename:      btif_storage.c
+ *
+ *  Description:   Stores the local BT adapter and remote device properties in
+ *                 NVRAM storage, typically as xml file in the
+ *                 mobile's filesystem
+ *
+ *
+ */
+
+#define LOG_TAG "bt_btif_storage"
+
+#include "btif_storage.h"
+
+#include <alloca.h>
+#include <assert.h>
+#include <ctype.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+
+#include "bta_hh_api.h"
+#include "btcore/include/bdaddr.h"
+#include "btif_api.h"
+#include "btif_config.h"
+#include "btif_hh.h"
+#include "btif_util.h"
+#include "bt_common.h"
+#include "osi/include/allocator.h"
+#include "osi/include/compat.h"
+#include "osi/include/config.h"
+#include "osi/include/log.h"
+#include "osi/include/osi.h"
+
+/************************************************************************************
+**  Constants & Macros
+************************************************************************************/
+
+// TODO(armansito): Find a better way than using a hardcoded path.
+#define BTIF_STORAGE_PATH_BLUEDROID "/data/misc/bluedroid"
+
+//#define BTIF_STORAGE_PATH_ADAPTER_INFO "adapter_info"
+//#define BTIF_STORAGE_PATH_REMOTE_DEVICES "remote_devices"
+#define BTIF_STORAGE_PATH_REMOTE_DEVTIME "Timestamp"
+#define BTIF_STORAGE_PATH_REMOTE_DEVCLASS "DevClass"
+#define BTIF_STORAGE_PATH_REMOTE_DEVTYPE "DevType"
+#define BTIF_STORAGE_PATH_REMOTE_NAME "Name"
+#define BTIF_STORAGE_PATH_REMOTE_VER_MFCT "Manufacturer"
+#define BTIF_STORAGE_PATH_REMOTE_VER_VER "LmpVer"
+#define BTIF_STORAGE_PATH_REMOTE_VER_SUBVER "LmpSubVer"
+
+//#define BTIF_STORAGE_PATH_REMOTE_LINKKEYS "remote_linkkeys"
+#define BTIF_STORAGE_PATH_REMOTE_ALIASE "Aliase"
+#define BTIF_STORAGE_PATH_REMOTE_SERVICE "Service"
+#define BTIF_STORAGE_PATH_REMOTE_HIDINFO "HidInfo"
+#define BTIF_STORAGE_KEY_ADAPTER_NAME "Name"
+#define BTIF_STORAGE_KEY_ADAPTER_SCANMODE "ScanMode"
+#define BTIF_STORAGE_KEY_ADAPTER_DISC_TIMEOUT "DiscoveryTimeout"
+
+/* This is a local property to add a device found */
+#define BT_PROPERTY_REMOTE_DEVICE_TIMESTAMP 0xFF
+
+#define BTIF_STORAGE_GET_ADAPTER_PROP(t,v,l,p) \
+      {p.type=t;p.val=v;p.len=l; btif_storage_get_adapter_property(&p);}
+
+#define BTIF_STORAGE_GET_REMOTE_PROP(b,t,v,l,p) \
+      {p.type=t;p.val=v;p.len=l;btif_storage_get_remote_device_property(b,&p);}
+
+#define STORAGE_BDADDR_STRING_SZ           (18)      /* 00:11:22:33:44:55 */
+#define STORAGE_UUID_STRING_SIZE           (36+1)    /* 00001200-0000-1000-8000-00805f9b34fb; */
+#define STORAGE_PINLEN_STRING_MAX_SIZE     (2)       /* ascii pinlen max chars */
+#define STORAGE_KEYTYPE_STRING_MAX_SIZE    (1)       /* ascii keytype max chars */
+
+#define STORAGE_KEY_TYPE_MAX               (10)
+
+#define STORAGE_HID_ATRR_MASK_SIZE           (4)
+#define STORAGE_HID_SUB_CLASS_SIZE           (2)
+#define STORAGE_HID_APP_ID_SIZE              (2)
+#define STORAGE_HID_VENDOR_ID_SIZE           (4)
+#define STORAGE_HID_PRODUCT_ID_SIZE          (4)
+#define STORAGE_HID_VERSION_SIZE             (4)
+#define STORAGE_HID_CTRY_CODE_SIZE           (2)
+#define STORAGE_HID_DESC_LEN_SIZE            (4)
+#define STORAGE_HID_DESC_MAX_SIZE            (2*512)
+
+/* <18 char bd addr> <space> LIST< <36 char uuid> <;> > <keytype (dec)> <pinlen> */
+#define BTIF_REMOTE_SERVICES_ENTRY_SIZE_MAX (STORAGE_BDADDR_STRING_SZ + 1 +\
+                                             STORAGE_UUID_STRING_SIZE*BT_MAX_NUM_UUIDS + \
+                                             STORAGE_PINLEN_STRING_MAX_SIZE +\
+                                             STORAGE_KEYTYPE_STRING_MAX_SIZE)
+
+#define STORAGE_REMOTE_LINKKEYS_ENTRY_SIZE (LINK_KEY_LEN*2 + 1 + 2 + 1 + 2)
+
+/* <18 char bd addr> <space>LIST <attr_mask> <space> > <sub_class> <space> <app_id> <space>
+                                <vendor_id> <space> > <product_id> <space> <version> <space>
+                                <ctry_code> <space> > <desc_len> <space> <desc_list> <space> */
+#define BTIF_HID_INFO_ENTRY_SIZE_MAX    (STORAGE_BDADDR_STRING_SZ + 1 +\
+                                         STORAGE_HID_ATRR_MASK_SIZE + 1 +\
+                                         STORAGE_HID_SUB_CLASS_SIZE + 1 +\
+                                         STORAGE_HID_APP_ID_SIZE+ 1 +\
+                                         STORAGE_HID_VENDOR_ID_SIZE+ 1 +\
+                                         STORAGE_HID_PRODUCT_ID_SIZE+ 1 +\
+                                         STORAGE_HID_VERSION_SIZE+ 1 +\
+                                         STORAGE_HID_CTRY_CODE_SIZE+ 1 +\
+                                         STORAGE_HID_DESC_LEN_SIZE+ 1 +\
+                                         STORAGE_HID_DESC_MAX_SIZE+ 1 )
+
+/* currently remote services is the potentially largest entry */
+#define BTIF_STORAGE_MAX_LINE_SZ BTIF_REMOTE_SERVICES_ENTRY_SIZE_MAX
+
+/* check against unv max entry size at compile time */
+#if (BTIF_STORAGE_ENTRY_MAX_SIZE > UNV_MAXLINE_LENGTH)
+    #error "btif storage entry size exceeds unv max line size"
+#endif
+
+#define BTIF_STORAGE_HL_APP          "hl_app"
+#define BTIF_STORAGE_HL_APP_CB       "hl_app_cb"
+#define BTIF_STORAGE_HL_APP_DATA     "hl_app_data_"
+#define BTIF_STORAGE_HL_APP_MDL_DATA "hl_app_mdl_data_"
+
+/************************************************************************************
+**  Local type definitions
+************************************************************************************/
+typedef struct
+{
+    uint32_t num_devices;
+    bt_bdaddr_t devices[BTM_SEC_MAX_DEVICE_RECORDS];
+} btif_bonded_devices_t;
+
+/************************************************************************************
+**  External variables
+************************************************************************************/
+extern UINT16 bta_service_id_to_uuid_lkup_tbl [BTA_MAX_SERVICE_ID];
+extern bt_bdaddr_t btif_local_bd_addr;
+
+/************************************************************************************
+**  External functions
+************************************************************************************/
+
+extern void btif_gatts_add_bonded_dev_from_nv(BD_ADDR bda);
+
+/************************************************************************************
+**  Internal Functions
+************************************************************************************/
+
+static bt_status_t btif_in_fetch_bonded_ble_device(const char *remote_bd_addr,int add,
+                                              btif_bonded_devices_t *p_bonded_devices);
+static bt_status_t btif_in_fetch_bonded_device(const char *bdstr);
+
+/************************************************************************************
+**  Static functions
+************************************************************************************/
+
+static int prop2cfg(bt_bdaddr_t *remote_bd_addr, bt_property_t *prop)
+{
+    bdstr_t bdstr = {0};
+    if(remote_bd_addr)
+        bdaddr_to_string(remote_bd_addr, bdstr, sizeof(bdstr));
+    BTIF_TRACE_DEBUG("in, bd addr:%s, prop type:%d, len:%d", bdstr, prop->type, prop->len);
+    char value[1024];
+    if(prop->len <= 0 || prop->len > (int)sizeof(value) - 1)
+    {
+        BTIF_TRACE_ERROR("property type:%d, len:%d is invalid", prop->type, prop->len);
+        return FALSE;
+    }
+    switch(prop->type)
+    {
+       case BT_PROPERTY_REMOTE_DEVICE_TIMESTAMP:
+            btif_config_set_int(bdstr,
+                                BTIF_STORAGE_PATH_REMOTE_DEVTIME, (int)time(NULL));
+            break;
+        case BT_PROPERTY_BDNAME:
+            strncpy(value, (char*)prop->val, prop->len);
+            value[prop->len]='\0';
+            if(remote_bd_addr)
+                btif_config_set_str(bdstr,
+                                BTIF_STORAGE_PATH_REMOTE_NAME, value);
+            else btif_config_set_str("Adapter",
+                                BTIF_STORAGE_KEY_ADAPTER_NAME, value);
+            break;
+        case BT_PROPERTY_REMOTE_FRIENDLY_NAME:
+            strncpy(value, (char*)prop->val, prop->len);
+            value[prop->len]='\0';
+            btif_config_set_str(bdstr, BTIF_STORAGE_PATH_REMOTE_ALIASE, value);
+            break;
+        case BT_PROPERTY_ADAPTER_SCAN_MODE:
+            btif_config_set_int("Adapter",
+                                BTIF_STORAGE_KEY_ADAPTER_SCANMODE, *(int*)prop->val);
+            break;
+        case BT_PROPERTY_ADAPTER_DISCOVERY_TIMEOUT:
+            btif_config_set_int("Adapter",
+                                BTIF_STORAGE_KEY_ADAPTER_DISC_TIMEOUT, *(int*)prop->val);
+            break;
+        case BT_PROPERTY_CLASS_OF_DEVICE:
+            btif_config_set_int(bdstr,
+                                BTIF_STORAGE_PATH_REMOTE_DEVCLASS, *(int*)prop->val);
+            break;
+        case BT_PROPERTY_TYPE_OF_DEVICE:
+            btif_config_set_int(bdstr,
+                                BTIF_STORAGE_PATH_REMOTE_DEVTYPE, *(int*)prop->val);
+            break;
+        case BT_PROPERTY_UUIDS:
+        {
+            uint32_t i;
+            char buf[64];
+            value[0] = 0;
+            for (i=0; i < (prop->len)/sizeof(bt_uuid_t); i++)
+            {
+                bt_uuid_t *p_uuid = (bt_uuid_t*)prop->val + i;
+                memset(buf, 0, sizeof(buf));
+                uuid_to_string_legacy(p_uuid, buf);
+                strcat(value, buf);
+                //strcat(value, ";");
+                strcat(value, " ");
+            }
+            btif_config_set_str(bdstr, BTIF_STORAGE_PATH_REMOTE_SERVICE, value);
+            break;
+        }
+        case BT_PROPERTY_REMOTE_VERSION_INFO:
+        {
+            bt_remote_version_t *info = (bt_remote_version_t *)prop->val;
+
+            if (!info)
+                return FALSE;
+
+            btif_config_set_int(bdstr,
+                                BTIF_STORAGE_PATH_REMOTE_VER_MFCT, info->manufacturer);
+            btif_config_set_int(bdstr,
+                                BTIF_STORAGE_PATH_REMOTE_VER_VER, info->version);
+            btif_config_set_int(bdstr,
+                                BTIF_STORAGE_PATH_REMOTE_VER_SUBVER, info->sub_ver);
+         } break;
+
+        default:
+             BTIF_TRACE_ERROR("Unknown prop type:%d", prop->type);
+             return FALSE;
+    }
+
+    /* save changes if the device was bonded */
+    if (btif_in_fetch_bonded_device(bdstr) == BT_STATUS_SUCCESS) {
+      btif_config_save();
+    }
+
+    return TRUE;
+}
+
+static int cfg2prop(bt_bdaddr_t *remote_bd_addr, bt_property_t *prop)
+{
+    bdstr_t bdstr = {0};
+    if(remote_bd_addr)
+        bdaddr_to_string(remote_bd_addr, bdstr, sizeof(bdstr));
+    BTIF_TRACE_DEBUG("in, bd addr:%s, prop type:%d, len:%d", bdstr, prop->type, prop->len);
+    if(prop->len <= 0)
+    {
+        BTIF_TRACE_ERROR("property type:%d, len:%d is invalid", prop->type, prop->len);
+        return FALSE;
+    }
+    int ret = FALSE;
+    switch(prop->type)
+    {
+       case BT_PROPERTY_REMOTE_DEVICE_TIMESTAMP:
+            if(prop->len >= (int)sizeof(int))
+                ret = btif_config_get_int(bdstr,
+                                        BTIF_STORAGE_PATH_REMOTE_DEVTIME, (int*)prop->val);
+            break;
+        case BT_PROPERTY_BDNAME:
+        {
+            int len = prop->len;
+            if(remote_bd_addr)
+                ret = btif_config_get_str(bdstr,
+                                        BTIF_STORAGE_PATH_REMOTE_NAME, (char*)prop->val, &len);
+            else ret = btif_config_get_str("Adapter",
+                                        BTIF_STORAGE_KEY_ADAPTER_NAME, (char*)prop->val, &len);
+            if(ret && len && len <= prop->len)
+                prop->len = len - 1;
+            else
+            {
+                prop->len = 0;
+                ret = FALSE;
+            }
+            break;
+        }
+        case BT_PROPERTY_REMOTE_FRIENDLY_NAME:
+        {
+            int len = prop->len;
+            ret = btif_config_get_str(bdstr,
+                                       BTIF_STORAGE_PATH_REMOTE_ALIASE, (char*)prop->val, &len);
+            if(ret && len && len <= prop->len)
+                prop->len = len - 1;
+            else
+            {
+                prop->len = 0;
+                ret = FALSE;
+            }
+            break;
+        }
+        case BT_PROPERTY_ADAPTER_SCAN_MODE:
+           if(prop->len >= (int)sizeof(int))
+                ret = btif_config_get_int("Adapter",
+                                          BTIF_STORAGE_KEY_ADAPTER_SCANMODE, (int*)prop->val);
+           break;
+        case BT_PROPERTY_ADAPTER_DISCOVERY_TIMEOUT:
+           if(prop->len >= (int)sizeof(int))
+                ret = btif_config_get_int("Adapter",
+                                          BTIF_STORAGE_KEY_ADAPTER_DISC_TIMEOUT, (int*)prop->val);
+            break;
+        case BT_PROPERTY_CLASS_OF_DEVICE:
+            if(prop->len >= (int)sizeof(int))
+                ret = btif_config_get_int(bdstr,
+                                BTIF_STORAGE_PATH_REMOTE_DEVCLASS, (int*)prop->val);
+            break;
+        case BT_PROPERTY_TYPE_OF_DEVICE:
+            if(prop->len >= (int)sizeof(int))
+                ret = btif_config_get_int(bdstr, BTIF_STORAGE_PATH_REMOTE_DEVTYPE, (int*)prop->val);
+            break;
+        case BT_PROPERTY_UUIDS:
+        {
+            char value[1280];
+            int size = sizeof(value);
+            if(btif_config_get_str(bdstr,
+                                    BTIF_STORAGE_PATH_REMOTE_SERVICE, value, &size))
+            {
+                bt_uuid_t *p_uuid = (bt_uuid_t*)prop->val;
+                size_t num_uuids = btif_split_uuids_string(value, p_uuid, BT_MAX_NUM_UUIDS);
+                prop->len = num_uuids * sizeof(bt_uuid_t);
+                ret = TRUE;
+            }
+            else
+            {
+                prop->val = NULL;
+                prop->len = 0;
+            }
+        } break;
+
+        case BT_PROPERTY_REMOTE_VERSION_INFO:
+        {
+            bt_remote_version_t *info = (bt_remote_version_t *)prop->val;
+
+            if(prop->len >= (int)sizeof(bt_remote_version_t))
+            {
+                ret = btif_config_get_int(bdstr,
+                                BTIF_STORAGE_PATH_REMOTE_VER_MFCT, &info->manufacturer);
+
+                if (ret == TRUE)
+                    ret = btif_config_get_int(bdstr,
+                                BTIF_STORAGE_PATH_REMOTE_VER_VER, &info->version);
+
+                if (ret == TRUE)
+                    ret = btif_config_get_int(bdstr,
+                                BTIF_STORAGE_PATH_REMOTE_VER_SUBVER, &info->sub_ver);
+            }
+         } break;
+
+        default:
+            BTIF_TRACE_ERROR("Unknow prop type:%d", prop->type);
+            return FALSE;
+    }
+    return ret;
+}
+
+/*******************************************************************************
+**
+** Function         btif_in_fetch_bonded_devices
+**
+** Description      Internal helper function to fetch the bonded devices
+**                  from NVRAM
+**
+** Returns          BT_STATUS_SUCCESS if successful, BT_STATUS_FAIL otherwise
+**
+*******************************************************************************/
+static bt_status_t btif_in_fetch_bonded_device(const char *bdstr)
+{
+    BOOLEAN bt_linkkey_file_found=FALSE;
+
+        LINK_KEY link_key;
+        size_t size = sizeof(link_key);
+        if(btif_config_get_bin(bdstr, "LinkKey", (uint8_t *)link_key, &size))
+        {
+            int linkkey_type;
+            if(btif_config_get_int(bdstr, "LinkKeyType", &linkkey_type))
+            {
+                bt_linkkey_file_found = TRUE;
+            }
+            else
+            {
+                bt_linkkey_file_found = FALSE;
+            }
+        }
+#if (BLE_INCLUDED == TRUE)
+        if((btif_in_fetch_bonded_ble_device(bdstr, FALSE, NULL) != BT_STATUS_SUCCESS)
+                && (!bt_linkkey_file_found))
+        {
+            BTIF_TRACE_DEBUG("Remote device:%s, no link key or ble key found", bdstr);
+            return BT_STATUS_FAIL;
+        }
+#else
+        if((!bt_linkkey_file_found))
+        {
+            BTIF_TRACE_DEBUG("Remote device:%s, no link key found", bdstr);
+            return BT_STATUS_FAIL;
+        }
+#endif
+    return BT_STATUS_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         btif_in_fetch_bonded_devices
+**
+** Description      Internal helper function to fetch the bonded devices
+**                  from NVRAM
+**
+** Returns          BT_STATUS_SUCCESS if successful, BT_STATUS_FAIL otherwise
+**
+*******************************************************************************/
+static bt_status_t btif_in_fetch_bonded_devices(btif_bonded_devices_t *p_bonded_devices, int add)
+{
+    memset(p_bonded_devices, 0, sizeof(btif_bonded_devices_t));
+
+    BOOLEAN bt_linkkey_file_found=FALSE;
+    int device_type;
+
+    for (const btif_config_section_iter_t *iter = btif_config_section_begin(); iter != btif_config_section_end(); iter = btif_config_section_next(iter)) {
+        const char *name = btif_config_section_name(iter);
+        if (!string_is_bdaddr(name))
+            continue;
+
+        BTIF_TRACE_DEBUG("Remote device:%s", name);
+        LINK_KEY link_key;
+        size_t size = sizeof(link_key);
+        if (btif_config_get_bin(name, "LinkKey", link_key, &size)) {
+            int linkkey_type;
+            if (btif_config_get_int(name, "LinkKeyType", &linkkey_type)) {
+                bt_bdaddr_t bd_addr;
+                string_to_bdaddr(name, &bd_addr);
+                if (add) {
+                    DEV_CLASS dev_class = {0, 0, 0};
+                    int cod;
+                    int pin_length = 0;
+                    if (btif_config_get_int(name, "DevClass", &cod))
+                        uint2devclass((UINT32)cod, dev_class);
+                    btif_config_get_int(name, "PinLength", &pin_length);
+                    BTA_DmAddDevice(bd_addr.address, dev_class, link_key, 0, 0,
+                                    (UINT8)linkkey_type, 0, pin_length);
+
+#if BLE_INCLUDED == TRUE
+                    if (btif_config_get_int(name, "DevType", &device_type) &&
+                        (device_type == BT_DEVICE_TYPE_DUMO) ) {
+                        btif_gatts_add_bonded_dev_from_nv(bd_addr.address);
+                    }
+#endif
+                }
+                bt_linkkey_file_found = TRUE;
+                memcpy(&p_bonded_devices->devices[p_bonded_devices->num_devices++], &bd_addr, sizeof(bt_bdaddr_t));
+            } else {
+#if (BLE_INCLUDED == TRUE)
+                bt_linkkey_file_found = FALSE;
+#else
+                BTIF_TRACE_ERROR("bounded device:%s, LinkKeyType or PinLength is invalid", name);
+#endif
+            }
+        }
+#if (BLE_INCLUDED == TRUE)
+        if (!btif_in_fetch_bonded_ble_device(name, add, p_bonded_devices) &&
+            !bt_linkkey_file_found) {
+            BTIF_TRACE_DEBUG("Remote device:%s, no link key or ble key found", name);
+        }
+#else
+        if(!bt_linkkey_file_found)
+            BTIF_TRACE_DEBUG("Remote device:%s, no link key", name);
+#endif
+    }
+    return BT_STATUS_SUCCESS;
+}
+
+static void btif_read_le_key(const uint8_t key_type, const size_t key_len, bt_bdaddr_t bd_addr,
+                 const uint8_t addr_type, const bool add_key, bool *device_added, bool *key_found)
+{
+    assert(device_added);
+    assert(key_found);
+
+    char buffer[100];
+    memset(buffer, 0, sizeof(buffer));
+
+    if (btif_storage_get_ble_bonding_key(&bd_addr, key_type, buffer, key_len) == BT_STATUS_SUCCESS)
+    {
+        if (add_key)
+        {
+            BD_ADDR bta_bd_addr;
+            bdcpy(bta_bd_addr, bd_addr.address);
+
+            if (!*device_added)
+            {
+                BTA_DmAddBleDevice(bta_bd_addr, addr_type, BT_DEVICE_TYPE_BLE);
+                *device_added = true;
+            }
+
+            char bd_str[20] = {0};
+            BTIF_TRACE_DEBUG("%s() Adding key type %d for %s", __func__,
+                key_type, bdaddr_to_string(&bd_addr, bd_str, sizeof(bd_str)));
+            BTA_DmAddBleKey(bta_bd_addr, (tBTA_LE_KEY_VALUE *)buffer, key_type);
+        }
+
+        *key_found = true;
+    }
+}
+
+/*******************************************************************************
+ * Functions
+ *
+ * Functions are synchronous and can be called by both from internal modules
+ * such as BTIF_DM and by external entiries from HAL via BTIF_context_switch.
+ * For OUT parameters, the caller is expected to provide the memory.
+ * Caller is expected to provide a valid pointer to 'property->value' based on
+ * the property->type.
+ *******************************************************************************/
+
+/*******************************************************************************
+**
+** Function         btif_split_uuids_string
+**
+** Description      Internal helper function to split the string of UUIDs
+**                  read from the NVRAM to an array
+**
+** Returns          Number of UUIDs parsed from the supplied string
+**
+*******************************************************************************/
+size_t btif_split_uuids_string(const char *str, bt_uuid_t *p_uuid, size_t max_uuids)
+{
+    assert(str);
+    assert(p_uuid);
+
+    size_t num_uuids = 0;
+    while (str && num_uuids < max_uuids)
+    {
+        bool rc = string_to_uuid(str, p_uuid++);
+        if (!rc) break;
+        num_uuids++;
+        str = strchr(str, ' ');
+        if (str) str++;
+    }
+
+    return num_uuids;
+}
+
+/*******************************************************************************
+**
+** Function         btif_storage_get_adapter_property
+**
+** Description      BTIF storage API - Fetches the adapter property->type
+**                  from NVRAM and fills property->val.
+**                  Caller should provide memory for property->val and
+**                  set the property->val
+**
+** Returns          BT_STATUS_SUCCESS if the fetch was successful,
+**                  BT_STATUS_FAIL otherwise
+**
+*******************************************************************************/
+bt_status_t btif_storage_get_adapter_property(bt_property_t *property)
+{
+
+    /* Special handling for adapter BD_ADDR and BONDED_DEVICES */
+    if (property->type == BT_PROPERTY_BDADDR)
+    {
+        bt_bdaddr_t *bd_addr = (bt_bdaddr_t*)property->val;
+        /* This has been cached in btif. Just fetch it from there */
+        memcpy(bd_addr, &btif_local_bd_addr, sizeof(bt_bdaddr_t));
+        property->len = sizeof(bt_bdaddr_t);
+        return BT_STATUS_SUCCESS;
+    }
+    else if (property->type == BT_PROPERTY_ADAPTER_BONDED_DEVICES)
+    {
+        btif_bonded_devices_t bonded_devices;
+
+        btif_in_fetch_bonded_devices(&bonded_devices, 0);
+
+        BTIF_TRACE_DEBUG("%s: Number of bonded devices: %d Property:BT_PROPERTY_ADAPTER_BONDED_DEVICES", __FUNCTION__, bonded_devices.num_devices);
+
+        if (bonded_devices.num_devices > 0)
+        {
+            property->len = bonded_devices.num_devices * sizeof(bt_bdaddr_t);
+            memcpy(property->val, bonded_devices.devices, property->len);
+        }
+
+        /* if there are no bonded_devices, then length shall be 0 */
+        return BT_STATUS_SUCCESS;
+    }
+    else if (property->type == BT_PROPERTY_UUIDS)
+    {
+        /* publish list of local supported services */
+        bt_uuid_t *p_uuid = (bt_uuid_t*)property->val;
+        uint32_t num_uuids = 0;
+        uint32_t i;
+
+        tBTA_SERVICE_MASK service_mask = btif_get_enabled_services_mask();
+        LOG_INFO(LOG_TAG, "%s service_mask:0x%x", __FUNCTION__, service_mask);
+        for (i=0; i < BTA_MAX_SERVICE_ID; i++)
+        {
+            /* This should eventually become a function when more services are enabled */
+            if (service_mask
+                &(tBTA_SERVICE_MASK)(1 << i))
+            {
+                switch (i)
+                {
+                    case BTA_HFP_SERVICE_ID:
+                        {
+                            uuid16_to_uuid128(UUID_SERVCLASS_AG_HANDSFREE,
+                                              p_uuid+num_uuids);
+                            num_uuids++;
+                        }
+                    /* intentional fall through: Send both BFP & HSP UUIDs if HFP is enabled */
+                    case BTA_HSP_SERVICE_ID:
+                        {
+                            uuid16_to_uuid128(UUID_SERVCLASS_HEADSET_AUDIO_GATEWAY,
+                                              p_uuid+num_uuids);
+                            num_uuids++;
+                        }break;
+                    case BTA_A2DP_SOURCE_SERVICE_ID:
+                        {
+                            uuid16_to_uuid128(UUID_SERVCLASS_AUDIO_SOURCE,
+                                              p_uuid+num_uuids);
+                            num_uuids++;
+                        }break;
+                    case BTA_A2DP_SINK_SERVICE_ID:
+                        {
+                            uuid16_to_uuid128(UUID_SERVCLASS_AUDIO_SINK,
+                                              p_uuid+num_uuids);
+                            num_uuids++;
+                        }break;
+                    case BTA_HFP_HS_SERVICE_ID:
+                        {
+                            uuid16_to_uuid128(UUID_SERVCLASS_HF_HANDSFREE,
+                                              p_uuid+num_uuids);
+                            num_uuids++;
+                        }break;
+                }
+            }
+        }
+        property->len = (num_uuids)*sizeof(bt_uuid_t);
+        return BT_STATUS_SUCCESS;
+    }
+
+    /* fall through for other properties */
+    if(!cfg2prop(NULL, property))
+    {
+        return btif_dm_get_adapter_property(property);
+    }
+    return BT_STATUS_SUCCESS;
+ }
+
+/*******************************************************************************
+**
+** Function         btif_storage_set_adapter_property
+**
+** Description      BTIF storage API - Stores the adapter property
+**                  to NVRAM
+**
+** Returns          BT_STATUS_SUCCESS if the store was successful,
+**                  BT_STATUS_FAIL otherwise
+**
+*******************************************************************************/
+bt_status_t btif_storage_set_adapter_property(bt_property_t *property)
+{
+    return prop2cfg(NULL, property) ? BT_STATUS_SUCCESS : BT_STATUS_FAIL;
+}
+
+/*******************************************************************************
+**
+** Function         btif_storage_get_remote_device_property
+**
+** Description      BTIF storage API - Fetches the remote device property->type
+**                  from NVRAM and fills property->val.
+**                  Caller should provide memory for property->val and
+**                  set the property->val
+**
+** Returns          BT_STATUS_SUCCESS if the fetch was successful,
+**                  BT_STATUS_FAIL otherwise
+**
+*******************************************************************************/
+bt_status_t btif_storage_get_remote_device_property(bt_bdaddr_t *remote_bd_addr,
+                                                    bt_property_t *property)
+{
+    return cfg2prop(remote_bd_addr, property) ? BT_STATUS_SUCCESS : BT_STATUS_FAIL;
+}
+/*******************************************************************************
+**
+** Function         btif_storage_set_remote_device_property
+**
+** Description      BTIF storage API - Stores the remote device property
+**                  to NVRAM
+**
+** Returns          BT_STATUS_SUCCESS if the store was successful,
+**                  BT_STATUS_FAIL otherwise
+**
+*******************************************************************************/
+bt_status_t btif_storage_set_remote_device_property(bt_bdaddr_t *remote_bd_addr,
+                                                    bt_property_t *property)
+{
+    return prop2cfg(remote_bd_addr, property) ? BT_STATUS_SUCCESS : BT_STATUS_FAIL;
+}
+
+/*******************************************************************************
+**
+** Function         btif_storage_add_remote_device
+**
+** Description      BTIF storage API - Adds a newly discovered device to NVRAM
+**                  along with the timestamp. Also, stores the various
+**                  properties - RSSI, BDADDR, NAME (if found in EIR)
+**
+** Returns          BT_STATUS_SUCCESS if the store was successful,
+**                  BT_STATUS_FAIL otherwise
+**
+*******************************************************************************/
+bt_status_t btif_storage_add_remote_device(bt_bdaddr_t *remote_bd_addr,
+                                           uint32_t num_properties,
+                                           bt_property_t *properties)
+{
+    uint32_t i = 0;
+    /* TODO: If writing a property, fails do we go back undo the earlier
+     * written properties? */
+    for (i=0; i < num_properties; i++)
+    {
+        /* Ignore the RSSI as this is not stored in DB */
+        if (properties[i].type == BT_PROPERTY_REMOTE_RSSI)
+            continue;
+
+        /* BD_ADDR for remote device needs special handling as we also store timestamp */
+        if (properties[i].type == BT_PROPERTY_BDADDR)
+        {
+            bt_property_t addr_prop;
+            memcpy(&addr_prop, &properties[i], sizeof(bt_property_t));
+            addr_prop.type = BT_PROPERTY_REMOTE_DEVICE_TIMESTAMP;
+            btif_storage_set_remote_device_property(remote_bd_addr,
+                                                    &addr_prop);
+        }
+        else
+        {
+            btif_storage_set_remote_device_property(remote_bd_addr,
+                                                    &properties[i]);
+        }
+    }
+    return BT_STATUS_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         btif_storage_add_bonded_device
+**
+** Description      BTIF storage API - Adds the newly bonded device to NVRAM
+**                  along with the link-key, Key type and Pin key length
+**
+** Returns          BT_STATUS_SUCCESS if the store was successful,
+**                  BT_STATUS_FAIL otherwise
+**
+*******************************************************************************/
+
+bt_status_t btif_storage_add_bonded_device(bt_bdaddr_t *remote_bd_addr,
+                                           LINK_KEY link_key,
+                                           uint8_t key_type,
+                                           uint8_t pin_length)
+{
+    bdstr_t bdstr;
+    bdaddr_to_string(remote_bd_addr, bdstr, sizeof(bdstr));
+    int ret = btif_config_set_int(bdstr, "LinkKeyType", (int)key_type);
+    ret &= btif_config_set_int(bdstr, "PinLength", (int)pin_length);
+    ret &= btif_config_set_bin(bdstr, "LinkKey", link_key, sizeof(LINK_KEY));
+
+    if (is_restricted_mode()) {
+        BTIF_TRACE_WARNING("%s: '%s' pairing will be removed if unrestricted",
+                         __func__, bdstr);
+        btif_config_set_int(bdstr, "Restricted", 1);
+    }
+
+    /* write bonded info immediately */
+    btif_config_flush();
+    return ret ? BT_STATUS_SUCCESS : BT_STATUS_FAIL;
+}
+
+/*******************************************************************************
+**
+** Function         btif_storage_remove_bonded_device
+**
+** Description      BTIF storage API - Deletes the bonded device from NVRAM
+**
+** Returns          BT_STATUS_SUCCESS if the deletion was successful,
+**                  BT_STATUS_FAIL otherwise
+**
+*******************************************************************************/
+bt_status_t btif_storage_remove_bonded_device(bt_bdaddr_t *remote_bd_addr)
+{
+    bdstr_t bdstr;
+    bdaddr_to_string(remote_bd_addr, bdstr, sizeof(bdstr));
+    BTIF_TRACE_DEBUG("in bd addr:%s", bdstr);
+
+#if (defined(BLE_INCLUDED) && (BLE_INCLUDED == TRUE))
+    btif_storage_remove_ble_bonding_keys(remote_bd_addr);
+#endif
+
+    int ret = 1;
+    if(btif_config_exist(bdstr, "LinkKeyType"))
+        ret &= btif_config_remove(bdstr, "LinkKeyType");
+    if(btif_config_exist(bdstr, "PinLength"))
+        ret &= btif_config_remove(bdstr, "PinLength");
+    if(btif_config_exist(bdstr, "LinkKey"))
+        ret &= btif_config_remove(bdstr, "LinkKey");
+    /* write bonded info immediately */
+    btif_config_flush();
+    return ret ? BT_STATUS_SUCCESS : BT_STATUS_FAIL;
+
+}
+
+/*******************************************************************************
+**
+** Function         btif_storage_load_bonded_devices
+**
+** Description      BTIF storage API - Loads all the bonded devices from NVRAM
+**                  and adds to the BTA.
+**                  Additionally, this API also invokes the adaper_properties_cb
+**                  and remote_device_properties_cb for each of the bonded devices.
+**
+** Returns          BT_STATUS_SUCCESS if successful, BT_STATUS_FAIL otherwise
+**
+*******************************************************************************/
+bt_status_t btif_storage_load_bonded_devices(void)
+{
+    btif_bonded_devices_t bonded_devices;
+    uint32_t i = 0;
+    bt_property_t adapter_props[6];
+    uint32_t num_props = 0;
+    bt_property_t remote_properties[8];
+    bt_bdaddr_t addr;
+    bt_bdname_t name, alias;
+    bt_scan_mode_t mode;
+    uint32_t disc_timeout;
+    bt_uuid_t local_uuids[BT_MAX_NUM_UUIDS];
+    bt_uuid_t remote_uuids[BT_MAX_NUM_UUIDS];
+
+    btif_in_fetch_bonded_devices(&bonded_devices, 1);
+
+    /* Now send the adapter_properties_cb with all adapter_properties */
+    {
+        memset(adapter_props, 0, sizeof(adapter_props));
+
+        /* BD_ADDR */
+        BTIF_STORAGE_GET_ADAPTER_PROP(BT_PROPERTY_BDADDR, &addr, sizeof(addr),
+                                      adapter_props[num_props]);
+        num_props++;
+
+        /* BD_NAME */
+        BTIF_STORAGE_GET_ADAPTER_PROP(BT_PROPERTY_BDNAME, &name, sizeof(name),
+                                      adapter_props[num_props]);
+        num_props++;
+
+        /* SCAN_MODE */
+        /* TODO: At the time of BT on, always report the scan mode as 0 irrespective
+         of the scan_mode during the previous enable cycle.
+         This needs to be re-visited as part of the app/stack enable sequence
+         synchronization */
+        mode = BT_SCAN_MODE_NONE;
+        adapter_props[num_props].type = BT_PROPERTY_ADAPTER_SCAN_MODE;
+        adapter_props[num_props].len = sizeof(mode);
+        adapter_props[num_props].val = &mode;
+        num_props++;
+
+        /* DISC_TIMEOUT */
+        BTIF_STORAGE_GET_ADAPTER_PROP(BT_PROPERTY_ADAPTER_DISCOVERY_TIMEOUT,
+                                      &disc_timeout, sizeof(disc_timeout),
+                                      adapter_props[num_props]);
+        num_props++;
+
+        /* BONDED_DEVICES */
+        bt_bdaddr_t *devices_list =
+            (bt_bdaddr_t *)osi_malloc(sizeof(bt_bdaddr_t) * bonded_devices.num_devices);
+        adapter_props[num_props].type = BT_PROPERTY_ADAPTER_BONDED_DEVICES;
+        adapter_props[num_props].len = bonded_devices.num_devices * sizeof(bt_bdaddr_t);
+        adapter_props[num_props].val = devices_list;
+        for (i=0; i < bonded_devices.num_devices; i++)
+        {
+            memcpy(devices_list + i, &bonded_devices.devices[i], sizeof(bt_bdaddr_t));
+        }
+        num_props++;
+
+        /* LOCAL UUIDs */
+        BTIF_STORAGE_GET_ADAPTER_PROP(BT_PROPERTY_UUIDS,
+                                      local_uuids, sizeof(local_uuids),
+                                      adapter_props[num_props]);
+        num_props++;
+
+        btif_adapter_properties_evt(BT_STATUS_SUCCESS, num_props, adapter_props);
+
+        osi_free(devices_list);
+    }
+
+    BTIF_TRACE_EVENT("%s: %d bonded devices found", __FUNCTION__, bonded_devices.num_devices);
+
+    {
+        for (i = 0; i < bonded_devices.num_devices; i++)
+        {
+            bt_bdaddr_t *p_remote_addr;
+
+            /*
+             * TODO: improve handling of missing fields in NVRAM.
+             */
+            uint32_t cod = 0;
+            uint32_t devtype = 0;
+
+            num_props = 0;
+            p_remote_addr = &bonded_devices.devices[i];
+            memset(remote_properties, 0, sizeof(remote_properties));
+            BTIF_STORAGE_GET_REMOTE_PROP(p_remote_addr, BT_PROPERTY_BDNAME,
+                                         &name, sizeof(name),
+                                         remote_properties[num_props]);
+            num_props++;
+
+            BTIF_STORAGE_GET_REMOTE_PROP(p_remote_addr, BT_PROPERTY_REMOTE_FRIENDLY_NAME,
+                                         &alias, sizeof(alias),
+                                         remote_properties[num_props]);
+            num_props++;
+
+            BTIF_STORAGE_GET_REMOTE_PROP(p_remote_addr, BT_PROPERTY_CLASS_OF_DEVICE,
+                                         &cod, sizeof(cod),
+                                         remote_properties[num_props]);
+            num_props++;
+
+            BTIF_STORAGE_GET_REMOTE_PROP(p_remote_addr, BT_PROPERTY_TYPE_OF_DEVICE,
+                                         &devtype, sizeof(devtype),
+                                         remote_properties[num_props]);
+            num_props++;
+
+            BTIF_STORAGE_GET_REMOTE_PROP(p_remote_addr, BT_PROPERTY_UUIDS,
+                                         remote_uuids, sizeof(remote_uuids),
+                                         remote_properties[num_props]);
+            num_props++;
+
+            btif_remote_properties_evt(BT_STATUS_SUCCESS, p_remote_addr,
+                                       num_props, remote_properties);
+        }
+    }
+    return BT_STATUS_SUCCESS;
+}
+
+#if (BLE_INCLUDED == TRUE)
+
+/*******************************************************************************
+**
+** Function         btif_storage_add_ble_bonding_key
+**
+** Description      BTIF storage API - Adds the newly bonded device to NVRAM
+**                  along with the ble-key, Key type and Pin key length
+**
+** Returns          BT_STATUS_SUCCESS if the store was successful,
+**                  BT_STATUS_FAIL otherwise
+**
+*******************************************************************************/
+
+bt_status_t btif_storage_add_ble_bonding_key(bt_bdaddr_t *remote_bd_addr,
+                                           char *key,
+                                           UINT8 key_type,
+                                           UINT8 key_length)
+{
+    bdstr_t bdstr;
+    bdaddr_to_string(remote_bd_addr, bdstr, sizeof(bdstr));
+    const char* name;
+    switch(key_type)
+    {
+        case BTIF_DM_LE_KEY_PENC:
+            name = "LE_KEY_PENC";
+            break;
+        case BTIF_DM_LE_KEY_PID:
+            name = "LE_KEY_PID";
+            break;
+        case BTIF_DM_LE_KEY_PCSRK:
+            name = "LE_KEY_PCSRK";
+            break;
+        case BTIF_DM_LE_KEY_LENC:
+            name = "LE_KEY_LENC";
+            break;
+        case BTIF_DM_LE_KEY_LCSRK:
+            name = "LE_KEY_LCSRK";
+            break;
+        case BTIF_DM_LE_KEY_LID:
+            name = "LE_KEY_LID";
+            break;
+        default:
+            return BT_STATUS_FAIL;
+    }
+    int ret = btif_config_set_bin(bdstr, name, (const uint8_t *)key, key_length);
+#ifdef BLUETOOTH_RTK
+    btif_config_flush();
+#else
+    btif_config_save();
+#endif
+    return ret ? BT_STATUS_SUCCESS : BT_STATUS_FAIL;
+}
+
+/*******************************************************************************
+**
+** Function         btif_storage_get_ble_bonding_key
+**
+** Description
+**
+** Returns          BT_STATUS_SUCCESS if the fetch was successful,
+**                  BT_STATUS_FAIL otherwise
+**
+*******************************************************************************/
+bt_status_t btif_storage_get_ble_bonding_key(bt_bdaddr_t *remote_bd_addr,
+                                             UINT8 key_type,
+                                             char *key_value,
+                                             int key_length)
+{
+    bdstr_t bdstr;
+    bdaddr_to_string(remote_bd_addr, bdstr, sizeof(bdstr));
+    const char* name;
+    switch(key_type)
+    {
+        case BTIF_DM_LE_KEY_PENC:
+            name = "LE_KEY_PENC";
+            break;
+        case BTIF_DM_LE_KEY_PID:
+            name = "LE_KEY_PID";
+            break;
+        case BTIF_DM_LE_KEY_PCSRK:
+            name = "LE_KEY_PCSRK";
+            break;
+        case BTIF_DM_LE_KEY_LENC:
+            name = "LE_KEY_LENC";
+            break;
+        case BTIF_DM_LE_KEY_LCSRK:
+            name = "LE_KEY_LCSRK";
+            break;
+        case BTIF_DM_LE_KEY_LID:
+            name =  "LE_KEY_LID";
+        default:
+            return BT_STATUS_FAIL;
+    }
+    size_t length = key_length;
+    int ret = btif_config_get_bin(bdstr, name, (uint8_t *)key_value, &length);
+    return ret ? BT_STATUS_SUCCESS : BT_STATUS_FAIL;
+
+}
+
+/*******************************************************************************
+**
+** Function         btif_storage_remove_ble_keys
+**
+** Description      BTIF storage API - Deletes the bonded device from NVRAM
+**
+** Returns          BT_STATUS_SUCCESS if the deletion was successful,
+**                  BT_STATUS_FAIL otherwise
+**
+*******************************************************************************/
+bt_status_t btif_storage_remove_ble_bonding_keys(bt_bdaddr_t *remote_bd_addr)
+{
+    bdstr_t bdstr;
+    bdaddr_to_string(remote_bd_addr, bdstr, sizeof(bdstr));
+    BTIF_TRACE_DEBUG(" %s in bd addr:%s",__FUNCTION__, bdstr);
+    int ret = 1;
+    if(btif_config_exist(bdstr, "LE_KEY_PENC"))
+        ret &= btif_config_remove(bdstr, "LE_KEY_PENC");
+    if(btif_config_exist(bdstr, "LE_KEY_PID"))
+        ret &= btif_config_remove(bdstr, "LE_KEY_PID");
+    if(btif_config_exist(bdstr, "LE_KEY_PCSRK"))
+        ret &= btif_config_remove(bdstr, "LE_KEY_PCSRK");
+    if(btif_config_exist(bdstr, "LE_KEY_LENC"))
+        ret &= btif_config_remove(bdstr, "LE_KEY_LENC");
+    if(btif_config_exist(bdstr, "LE_KEY_LCSRK"))
+        ret &= btif_config_remove(bdstr, "LE_KEY_LCSRK");
+#ifdef BLUETOOTH_RTK
+    /* remove bonded info immediately */
+    btif_config_flush();
+#else
+    btif_config_save();
+#endif
+    return ret ? BT_STATUS_SUCCESS : BT_STATUS_FAIL;
+}
+
+/*******************************************************************************
+**
+** Function         btif_storage_add_ble_local_key
+**
+** Description      BTIF storage API - Adds the ble key to NVRAM
+**
+** Returns          BT_STATUS_SUCCESS if the store was successful,
+**                  BT_STATUS_FAIL otherwise
+**
+*******************************************************************************/
+bt_status_t btif_storage_add_ble_local_key(char *key,
+                                           uint8_t key_type,
+                                           uint8_t key_length)
+{
+    const char* name;
+    switch(key_type)
+    {
+        case BTIF_DM_LE_LOCAL_KEY_IR:
+            name = "LE_LOCAL_KEY_IR";
+            break;
+        case BTIF_DM_LE_LOCAL_KEY_IRK:
+            name = "LE_LOCAL_KEY_IRK";
+            break;
+        case BTIF_DM_LE_LOCAL_KEY_DHK:
+            name = "LE_LOCAL_KEY_DHK";
+            break;
+        case BTIF_DM_LE_LOCAL_KEY_ER:
+            name = "LE_LOCAL_KEY_ER";
+            break;
+        default:
+            return BT_STATUS_FAIL;
+    }
+    int ret = btif_config_set_bin("Adapter", name, (const uint8_t *)key, key_length);
+    btif_config_save();
+    return ret ? BT_STATUS_SUCCESS : BT_STATUS_FAIL;
+}
+
+/*******************************************************************************
+**
+** Function         btif_storage_get_ble_local_key
+**
+** Description
+**
+** Returns          BT_STATUS_SUCCESS if the fetch was successful,
+**                  BT_STATUS_FAIL otherwise
+**
+*******************************************************************************/
+bt_status_t btif_storage_get_ble_local_key(UINT8 key_type,
+                                           char *key_value,
+                                           int key_length)
+{
+    const char* name;
+    switch(key_type)
+    {
+        case BTIF_DM_LE_LOCAL_KEY_IR:
+            name = "LE_LOCAL_KEY_IR";
+            break;
+        case BTIF_DM_LE_LOCAL_KEY_IRK:
+            name = "LE_LOCAL_KEY_IRK";
+            break;
+        case BTIF_DM_LE_LOCAL_KEY_DHK:
+            name = "LE_LOCAL_KEY_DHK";
+            break;
+        case BTIF_DM_LE_LOCAL_KEY_ER:
+            name = "LE_LOCAL_KEY_ER";
+            break;
+        default:
+            return BT_STATUS_FAIL;
+    }
+    size_t length = key_length;
+    int ret = btif_config_get_bin("Adapter", name, (uint8_t *)key_value, &length);
+    return ret ? BT_STATUS_SUCCESS : BT_STATUS_FAIL;
+}
+
+/*******************************************************************************
+**
+** Function         btif_storage_remove_ble_local_keys
+**
+** Description      BTIF storage API - Deletes the bonded device from NVRAM
+**
+** Returns          BT_STATUS_SUCCESS if the deletion was successful,
+**                  BT_STATUS_FAIL otherwise
+**
+*******************************************************************************/
+bt_status_t btif_storage_remove_ble_local_keys(void)
+{
+    int ret = 1;
+    if(btif_config_exist("Adapter", "LE_LOCAL_KEY_IR"))
+        ret &= btif_config_remove("Adapter", "LE_LOCAL_KEY_IR");
+    if(btif_config_exist("Adapter", "LE_LOCAL_KEY_IRK"))
+        ret &= btif_config_remove("Adapter", "LE_LOCAL_KEY_IRK");
+    if(btif_config_exist("Adapter", "LE_LOCAL_KEY_DHK"))
+        ret &= btif_config_remove("Adapter", "LE_LOCAL_KEY_DHK");
+    if(btif_config_exist("Adapter", "LE_LOCAL_KEY_ER"))
+        ret &= btif_config_remove("Adapter", "LE_LOCAL_KEY_ER");
+    btif_config_save();
+    return ret ? BT_STATUS_SUCCESS : BT_STATUS_FAIL;
+}
+
+static bt_status_t btif_in_fetch_bonded_ble_device(const char *remote_bd_addr, int add, btif_bonded_devices_t *p_bonded_devices)
+{
+    int device_type;
+    int addr_type;
+    bt_bdaddr_t bd_addr;
+    BD_ADDR bta_bd_addr;
+    bool device_added = false;
+    bool key_found = false;
+
+    if (!btif_config_get_int(remote_bd_addr, "DevType", &device_type))
+        return BT_STATUS_FAIL;
+
+    if ((device_type & BT_DEVICE_TYPE_BLE) == BT_DEVICE_TYPE_BLE)
+    {
+        BTIF_TRACE_DEBUG("%s Found a LE device: %s", __func__, remote_bd_addr);
+
+        string_to_bdaddr(remote_bd_addr, &bd_addr);
+        bdcpy(bta_bd_addr, bd_addr.address);
+
+        if (btif_storage_get_remote_addr_type(&bd_addr, &addr_type) != BT_STATUS_SUCCESS)
+        {
+            addr_type = BLE_ADDR_PUBLIC;
+            btif_storage_set_remote_addr_type(&bd_addr, BLE_ADDR_PUBLIC);
+        }
+
+        btif_read_le_key(BTIF_DM_LE_KEY_PENC, sizeof(tBTM_LE_PENC_KEYS),
+                         bd_addr, addr_type, add, &device_added, &key_found);
+
+        btif_read_le_key(BTIF_DM_LE_KEY_PID, sizeof(tBTM_LE_PID_KEYS),
+                         bd_addr, addr_type, add, &device_added, &key_found);
+
+        btif_read_le_key(BTIF_DM_LE_KEY_LID, sizeof(tBTM_LE_PID_KEYS),
+                         bd_addr, addr_type, add, &device_added, &key_found);
+
+        btif_read_le_key(BTIF_DM_LE_KEY_PCSRK, sizeof(tBTM_LE_PCSRK_KEYS),
+                         bd_addr, addr_type, add, &device_added, &key_found);
+
+        btif_read_le_key(BTIF_DM_LE_KEY_LENC, sizeof(tBTM_LE_LENC_KEYS),
+                         bd_addr, addr_type, add, &device_added, &key_found);
+
+        btif_read_le_key(BTIF_DM_LE_KEY_LCSRK, sizeof(tBTM_LE_LCSRK_KEYS),
+                         bd_addr, addr_type, add, &device_added, &key_found);
+
+        // Fill in the bonded devices
+        if (device_added)
+        {
+            memcpy(&p_bonded_devices->devices[p_bonded_devices->num_devices++], &bd_addr, sizeof(bt_bdaddr_t));
+            btif_gatts_add_bonded_dev_from_nv(bta_bd_addr);
+        }
+
+        if (key_found)
+            return BT_STATUS_SUCCESS;
+    }
+    return BT_STATUS_FAIL;
+}
+
+bt_status_t btif_storage_set_remote_addr_type(bt_bdaddr_t *remote_bd_addr,
+                                              UINT8 addr_type)
+{
+    bdstr_t bdstr;
+    bdaddr_to_string(remote_bd_addr, bdstr, sizeof(bdstr));
+    int ret = btif_config_set_int(bdstr, "AddrType", (int)addr_type);
+    return ret ? BT_STATUS_SUCCESS : BT_STATUS_FAIL;
+}
+
+/*******************************************************************************
+**
+** Function         btif_storage_get_remote_addr_type
+**
+** Description      BTIF storage API - Fetches the remote addr type
+**
+** Returns          BT_STATUS_SUCCESS if the fetch was successful,
+**                  BT_STATUS_FAIL otherwise
+**
+*******************************************************************************/
+bt_status_t btif_storage_get_remote_addr_type(bt_bdaddr_t *remote_bd_addr,
+                                              int*addr_type)
+{
+    bdstr_t bdstr;
+    bdaddr_to_string(remote_bd_addr, bdstr, sizeof(bdstr));
+    int ret = btif_config_get_int(bdstr, "AddrType", addr_type);
+    return ret ? BT_STATUS_SUCCESS : BT_STATUS_FAIL;
+}
+#endif
+/*******************************************************************************
+**
+** Function         btif_storage_add_hid_device_info
+**
+** Description      BTIF storage API - Adds the hid information of bonded hid devices-to NVRAM
+**
+** Returns          BT_STATUS_SUCCESS if the store was successful,
+**                  BT_STATUS_FAIL otherwise
+**
+*******************************************************************************/
+
+bt_status_t btif_storage_add_hid_device_info(bt_bdaddr_t *remote_bd_addr,
+                                                    UINT16 attr_mask, UINT8 sub_class,
+                                                    UINT8 app_id, UINT16 vendor_id,
+                                                    UINT16 product_id, UINT16 version,
+                                                    UINT8 ctry_code, UINT16 ssr_max_latency,
+                                                    UINT16 ssr_min_tout, UINT16 dl_len, UINT8 *dsc_list)
+{
+    bdstr_t bdstr;
+    BTIF_TRACE_DEBUG("btif_storage_add_hid_device_info:");
+    bdaddr_to_string(remote_bd_addr, bdstr, sizeof(bdstr));
+    btif_config_set_int(bdstr, "HidAttrMask", attr_mask);
+    btif_config_set_int(bdstr, "HidSubClass", sub_class);
+    btif_config_set_int(bdstr, "HidAppId", app_id);
+    btif_config_set_int(bdstr, "HidVendorId", vendor_id);
+    btif_config_set_int(bdstr, "HidProductId", product_id);
+    btif_config_set_int(bdstr, "HidVersion", version);
+    btif_config_set_int(bdstr, "HidCountryCode", ctry_code);
+    btif_config_set_int(bdstr, "HidSSRMaxLatency", ssr_max_latency);
+    btif_config_set_int(bdstr, "HidSSRMinTimeout", ssr_min_tout);
+    if(dl_len > 0)
+        btif_config_set_bin(bdstr, "HidDescriptor", dsc_list, dl_len);
+#ifdef BLUETOOTH_RTK
+    btif_config_flush();
+#else
+    btif_config_save();
+#endif
+    return BT_STATUS_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         btif_storage_load_bonded_hid_info
+**
+** Description      BTIF storage API - Loads hid info for all the bonded devices from NVRAM
+**                  and adds those devices  to the BTA_HH.
+**
+** Returns          BT_STATUS_SUCCESS if successful, BT_STATUS_FAIL otherwise
+**
+*******************************************************************************/
+bt_status_t btif_storage_load_bonded_hid_info(void)
+{
+    bt_bdaddr_t bd_addr;
+    tBTA_HH_DEV_DSCP_INFO dscp_info;
+    uint16_t attr_mask;
+    uint8_t  sub_class;
+    uint8_t  app_id;
+
+    memset(&dscp_info, 0, sizeof(dscp_info));
+    for (const btif_config_section_iter_t *iter = btif_config_section_begin(); iter != btif_config_section_end(); iter = btif_config_section_next(iter)) {
+        const char *name = btif_config_section_name(iter);
+        if (!string_is_bdaddr(name))
+            continue;
+
+        BTIF_TRACE_DEBUG("Remote device:%s", name);
+        int value;
+        if(btif_in_fetch_bonded_device(name) == BT_STATUS_SUCCESS)
+        {
+            if(btif_config_get_int(name, "HidAttrMask", &value))
+            {
+                attr_mask = (uint16_t)value;
+
+                btif_config_get_int(name, "HidSubClass", &value);
+                sub_class = (uint8_t)value;
+
+                btif_config_get_int(name, "HidAppId", &value);
+                app_id = (uint8_t)value;
+
+                btif_config_get_int(name, "HidVendorId", &value);
+                dscp_info.vendor_id = (uint16_t) value;
+
+                btif_config_get_int(name, "HidProductId", &value);
+                dscp_info.product_id = (uint16_t) value;
+
+                btif_config_get_int(name, "HidVersion", &value);
+                dscp_info.version = (uint8_t) value;
+
+                btif_config_get_int(name, "HidCountryCode", &value);
+                dscp_info.ctry_code = (uint8_t) value;
+
+                value = 0;
+                btif_config_get_int(name, "HidSSRMaxLatency", &value);
+                dscp_info.ssr_max_latency = (uint16_t) value;
+
+                value = 0;
+                btif_config_get_int(name, "HidSSRMinTimeout", &value);
+                dscp_info.ssr_min_tout = (uint16_t) value;
+
+                size_t len = btif_config_get_bin_length(name, "HidDescriptor");
+                if(len > 0)
+                {
+                    dscp_info.descriptor.dl_len = (uint16_t)len;
+                    dscp_info.descriptor.dsc_list = (uint8_t*)alloca(len);
+                    btif_config_get_bin(name, "HidDescriptor", (uint8_t *)dscp_info.descriptor.dsc_list, &len);
+                }
+                string_to_bdaddr(name, &bd_addr);
+                // add extracted information to BTA HH
+                if (btif_hh_add_added_dev(bd_addr,attr_mask))
+                {
+                    BTA_HhAddDev(bd_addr.address, attr_mask, sub_class,
+                            app_id, dscp_info);
+                }
+            }
+        }
+        else
+        {
+            if(btif_config_get_int(name, "HidAttrMask", &value))
+            {
+                btif_storage_remove_hid_info(&bd_addr);
+                string_to_bdaddr(name, &bd_addr);
+            }
+        }
+    }
+
+    return BT_STATUS_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         btif_storage_remove_hid_info
+**
+** Description      BTIF storage API - Deletes the bonded hid device info from NVRAM
+**
+** Returns          BT_STATUS_SUCCESS if the deletion was successful,
+**                  BT_STATUS_FAIL otherwise
+**
+*******************************************************************************/
+bt_status_t btif_storage_remove_hid_info(bt_bdaddr_t *remote_bd_addr)
+{
+    bdstr_t bdstr;
+    bdaddr_to_string(remote_bd_addr, bdstr, sizeof(bdstr));
+
+    btif_config_remove(bdstr, "HidAttrMask");
+    btif_config_remove(bdstr, "HidSubClass");
+    btif_config_remove(bdstr, "HidAppId");
+    btif_config_remove(bdstr, "HidVendorId");
+    btif_config_remove(bdstr, "HidProductId");
+    btif_config_remove(bdstr, "HidVersion");
+    btif_config_remove(bdstr, "HidCountryCode");
+    btif_config_remove(bdstr, "HidSSRMaxLatency");
+    btif_config_remove(bdstr, "HidSSRMinTimeout");
+    btif_config_remove(bdstr, "HidDescriptor");
+#ifdef BLUETOOTH_RTK
+    /* remove HID info immediately */
+    btif_config_flush();
+#else
+    btif_config_save();
+#endif
+    return BT_STATUS_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         btif_storage_read_hl_apps_cb
+**
+** Description      BTIF storage API - Read HL application control block from NVRAM
+**
+** Returns          BT_STATUS_SUCCESS if the operation was successful,
+**                  BT_STATUS_FAIL otherwise
+**
+*******************************************************************************/
+bt_status_t btif_storage_read_hl_apps_cb(char *value, int value_size)
+{
+    bt_status_t bt_status = BT_STATUS_SUCCESS;
+
+    if (!btif_config_exist(BTIF_STORAGE_HL_APP, BTIF_STORAGE_HL_APP_CB)) {
+        memset(value, 0, value_size);
+        if (!btif_config_set_bin(BTIF_STORAGE_HL_APP,BTIF_STORAGE_HL_APP_CB,
+                             (const uint8_t *)value, value_size)) {
+            bt_status = BT_STATUS_FAIL;
+        } else {
+            btif_config_save();
+        }
+    } else {
+        size_t read_size = value_size;
+        if (!btif_config_get_bin(BTIF_STORAGE_HL_APP, BTIF_STORAGE_HL_APP_CB,
+                             (uint8_t *)value, &read_size)) {
+            bt_status = BT_STATUS_FAIL;
+        } else {
+            if (read_size != (size_t)value_size) {
+                BTIF_TRACE_ERROR("%s  value_size=%d read_size=%d",
+                                  __FUNCTION__, value_size, read_size);
+                bt_status = BT_STATUS_FAIL;
+            }
+        }
+    }
+
+    BTIF_TRACE_DEBUG("%s  status=%d value_size=%d", __FUNCTION__, bt_status, value_size);
+    return bt_status;
+}
+
+/*******************************************************************************
+**
+** Function         btif_storage_is_restricted_device
+**
+** Description      BTIF storage API - checks if this device is a restricted device
+**
+** Returns          TRUE  if the device is labeled as restricted
+**                  FALSE otherwise
+**
+*******************************************************************************/
+BOOLEAN btif_storage_is_restricted_device(const bt_bdaddr_t *remote_bd_addr)
+{
+    bdstr_t bdstr;
+    bdaddr_to_string(remote_bd_addr, bdstr, sizeof(bdstr));
+
+    return btif_config_exist(bdstr, "Restricted");
+}
diff --git a/rtkbt/code/bt/btif/src/btif_uid.c b/rtkbt/code/bt/btif/src/btif_uid.c
new file mode 100755
index 0000000..0a7f378
--- /dev/null
+++ b/rtkbt/code/bt/btif/src/btif_uid.c
@@ -0,0 +1,133 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/************************************************************************************
+ *
+ *  Filename:      btif_uid.c
+ *
+ *  Description:   Contains data structures and functions for keeping track of
+ *                 socket usage per app UID.
+ *
+ ***********************************************************************************/
+#define LOG_TAG "bt_uid_set"
+#include "bt_common.h"
+#include "btif_uid.h"
+
+#include <log/log.h>
+#include <pthread.h>
+
+typedef struct uid_set_node_t {
+    struct uid_set_node_t* next;
+    bt_uid_traffic_t data;
+} uid_set_node_t;
+
+typedef struct uid_set_t {
+    pthread_mutex_t lock;
+    uid_set_node_t* head;
+} uid_set_t;
+
+uid_set_t* uid_set_create(void) {
+    uid_set_t* set = osi_calloc(sizeof(uid_set_t));
+    pthread_mutex_init(&set->lock, NULL);
+    return set;
+}
+
+void uid_set_destroy(uid_set_t* set) {
+    pthread_mutex_lock(&set->lock);
+    uid_set_node_t* node = set->head;
+    while (node) {
+        uid_set_node_t* temp = node;
+        node = node->next;
+        osi_free(temp);
+    }
+    set->head = NULL;
+    pthread_mutex_unlock(&set->lock);
+    pthread_mutex_destroy(&set->lock);
+    osi_free(set);
+}
+
+// Lock in uid_set_t must be held.
+static uid_set_node_t* uid_set_find_or_create_node(uid_set_t* set, int32_t app_uid) {
+    uid_set_node_t* node = set->head;
+    while (node && node->data.app_uid != app_uid) {
+        node = node->next;
+    }
+
+    if (!node) {
+        node = osi_calloc(sizeof(uid_set_node_t));
+        node->data.app_uid = app_uid;
+        node->next = set->head;
+        set->head = node;
+    }
+    return node;
+}
+
+void uid_set_add_tx(uid_set_t* set, int32_t app_uid, uint64_t bytes) {
+    if (app_uid == -1 || bytes == 0) {
+        return;
+    }
+
+    pthread_mutex_lock(&set->lock);
+    uid_set_node_t* node = uid_set_find_or_create_node(set, app_uid);
+    node->data.tx_bytes += bytes;
+    pthread_mutex_unlock(&set->lock);
+}
+
+void uid_set_add_rx(uid_set_t* set, int32_t app_uid, uint64_t bytes) {
+    if (app_uid == -1 || bytes == 0) {
+        return;
+    }
+
+    pthread_mutex_lock(&set->lock);
+    uid_set_node_t* node = uid_set_find_or_create_node(set, app_uid);
+    node->data.rx_bytes += bytes;
+    pthread_mutex_unlock(&set->lock);
+}
+
+bt_uid_traffic_t* uid_set_read_and_clear(uid_set_t* set) {
+    pthread_mutex_lock(&set->lock);
+
+    // Find the length
+    size_t len = 0;
+    uid_set_node_t* node = set->head;
+    while (node) {
+        len++;
+        node = node->next;
+    }
+
+    // Allocate an array of elements + 1, to signify the end with app_uid set to -1.
+    bt_uid_traffic_t* result = osi_calloc(sizeof(bt_uid_traffic_t) * (len + 1));
+
+    bt_uid_traffic_t* data = result;
+    node = set->head;
+    while (node) {
+        // Copy the data.
+        *data = node->data;
+        data++;
+
+        // Clear the counters.
+        node->data.rx_bytes = 0;
+        node->data.tx_bytes = 0;
+        node = node->next;
+    }
+
+    // Mark the last entry
+    data->app_uid = -1;
+
+    pthread_mutex_unlock(&set->lock);
+
+    return result;
+}
diff --git a/rtkbt/code/bt/btif/src/btif_util.c b/rtkbt/code/bt/btif/src/btif_util.c
new file mode 100755
index 0000000..f4cffcb
--- /dev/null
+++ b/rtkbt/code/bt/btif/src/btif_util.c
@@ -0,0 +1,540 @@
+/******************************************************************************
+ *
+ *  Copyright (c) 2014 The Android Open Source Project
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/************************************************************************************
+ *
+ *  Filename:      btif_util.c
+ *
+ *  Description:   Miscellaneous helper functions
+ *
+ *
+ ***********************************************************************************/
+
+#define LOG_TAG "bt_btif_util"
+
+#include "btif_util.h"
+
+#include <assert.h>
+#include <ctype.h>
+#include <netinet/in.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <hardware/bt_av.h>
+
+#include "avrc_defs.h"
+#include "bta_ag_api.h"
+#include "bta_api.h"
+#include "bta_av_api.h"
+#include "bta_hf_client_api.h"
+#include "bta_hh_api.h"
+#include "bte.h"
+#include "btif_common.h"
+#include "btif_dm.h"
+#include "btu.h"
+#include "bt_common.h"
+
+/************************************************************************************
+**  Constants & Macros
+************************************************************************************/
+#define ISDIGIT(a)  ((a>='0') && (a<='9'))
+#define ISXDIGIT(a) (((a>='0') && (a<='9'))||((a>='A') && (a<='F'))||((a>='a') && (a<='f')))
+
+/************************************************************************************
+**  Local type definitions
+************************************************************************************/
+
+/************************************************************************************
+**  Static variables
+************************************************************************************/
+
+/************************************************************************************
+**  Static functions
+************************************************************************************/
+
+/************************************************************************************
+**  Externs
+************************************************************************************/
+
+/************************************************************************************
+**  Functions
+************************************************************************************/
+
+/*****************************************************************************
+**   Logging helper functions
+*****************************************************************************/
+
+UINT32 devclass2uint(DEV_CLASS dev_class)
+{
+    UINT32 cod = 0;
+
+    if(dev_class != NULL)
+    {
+        /* if COD is 0, irrespective of the device type set it to Unclassified device */
+        cod = (dev_class[2]) | (dev_class[1] << 8) | (dev_class[0] << 16);
+    }
+    return cod;
+}
+void uint2devclass(UINT32 cod, DEV_CLASS dev_class)
+{
+    dev_class[2] = (UINT8)cod;
+    dev_class[1] = (UINT8)(cod >> 8);
+    dev_class[0] = (UINT8)(cod >> 16);
+}
+
+static const UINT8  sdp_base_uuid[] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00,
+                                       0x80, 0x00, 0x00, 0x80, 0x5F, 0x9B, 0x34, 0xFB};
+
+void uuid16_to_uuid128(uint16_t uuid16, bt_uuid_t* uuid128)
+{
+    uint16_t uuid16_bo;
+    memset(uuid128, 0, sizeof(bt_uuid_t));
+
+    memcpy(uuid128->uu, sdp_base_uuid, MAX_UUID_SIZE);
+    uuid16_bo = ntohs(uuid16);
+    memcpy(uuid128->uu + 2, &uuid16_bo, sizeof(uint16_t));
+}
+
+bool string_to_uuid(const char *str, bt_uuid_t *p_uuid)
+{
+    assert(p_uuid);
+    if (str == NULL)
+        return false;
+
+    uint32_t uuid0, uuid4;
+    uint16_t uuid1, uuid2, uuid3, uuid5;
+
+    int rc = sscanf(str, "%08x-%04hx-%04hx-%04hx-%08x%04hx",
+                &uuid0, &uuid1, &uuid2, &uuid3, &uuid4, &uuid5);
+    if (rc != 6)
+        return false;
+
+    uuid0 = htonl(uuid0);
+    uuid1 = htons(uuid1);
+    uuid2 = htons(uuid2);
+    uuid3 = htons(uuid3);
+    uuid4 = htonl(uuid4);
+    uuid5 = htons(uuid5);
+
+    memcpy(&(p_uuid->uu[0]), &uuid0, 4);
+    memcpy(&(p_uuid->uu[4]), &uuid1, 2);
+    memcpy(&(p_uuid->uu[6]), &uuid2, 2);
+    memcpy(&(p_uuid->uu[8]), &uuid3, 2);
+    memcpy(&(p_uuid->uu[10]), &uuid4, 4);
+    memcpy(&(p_uuid->uu[14]), &uuid5, 2);
+
+    return true;
+}
+
+void uuid_to_string_legacy(bt_uuid_t *p_uuid, char *str)
+{
+    uint32_t uuid0, uuid4;
+    uint16_t uuid1, uuid2, uuid3, uuid5;
+
+    memcpy(&uuid0, &(p_uuid->uu[0]), 4);
+    memcpy(&uuid1, &(p_uuid->uu[4]), 2);
+    memcpy(&uuid2, &(p_uuid->uu[6]), 2);
+    memcpy(&uuid3, &(p_uuid->uu[8]), 2);
+    memcpy(&uuid4, &(p_uuid->uu[10]), 4);
+    memcpy(&uuid5, &(p_uuid->uu[14]), 2);
+
+    sprintf((char *)str, "%.8x-%.4x-%.4x-%.4x-%.8x%.4x",
+            ntohl(uuid0), ntohs(uuid1),
+            ntohs(uuid2), ntohs(uuid3),
+            ntohl(uuid4), ntohs(uuid5));
+    return;
+}
+
+/*****************************************************************************
+**  Function        ascii_2_hex
+**
+**  Description     This function converts an ASCII string into HEX
+**
+**  Returns         the number of hex bytes filled.
+*/
+int ascii_2_hex (const char *p_ascii, int len, UINT8 *p_hex)
+{
+    int     x;
+    UINT8   c;
+
+    for (x = 0; (x < len) && (*p_ascii); x++)
+    {
+        if (ISDIGIT (*p_ascii))
+            c = (*p_ascii - '0') << 4;
+        else
+            c = (toupper(*p_ascii) - 'A' + 10) << 4;
+
+        p_ascii++;
+        if (*p_ascii)
+        {
+            if (ISDIGIT (*p_ascii))
+                c |= (*p_ascii - '0');
+            else
+                c |= (toupper(*p_ascii) - 'A' + 10);
+
+            p_ascii++;
+        }
+        *p_hex++ = c;
+    }
+
+    return (x);
+}
+
+const char* dump_dm_search_event(UINT16 event)
+{
+    switch(event)
+    {
+        CASE_RETURN_STR(BTA_DM_INQ_RES_EVT)
+        CASE_RETURN_STR(BTA_DM_INQ_CMPL_EVT)
+        CASE_RETURN_STR(BTA_DM_DISC_RES_EVT)
+        CASE_RETURN_STR(BTA_DM_DISC_BLE_RES_EVT)
+        CASE_RETURN_STR(BTA_DM_DISC_CMPL_EVT)
+        CASE_RETURN_STR(BTA_DM_DI_DISC_CMPL_EVT)
+        CASE_RETURN_STR(BTA_DM_SEARCH_CANCEL_CMPL_EVT)
+
+        default:
+            return "UNKNOWN MSG ID";
+     }
+}
+
+const char* dump_property_type(bt_property_type_t type)
+{
+    switch(type)
+    {
+        CASE_RETURN_STR(BT_PROPERTY_BDNAME)
+        CASE_RETURN_STR(BT_PROPERTY_BDADDR)
+        CASE_RETURN_STR(BT_PROPERTY_UUIDS)
+        CASE_RETURN_STR(BT_PROPERTY_CLASS_OF_DEVICE)
+        CASE_RETURN_STR(BT_PROPERTY_TYPE_OF_DEVICE)
+        CASE_RETURN_STR(BT_PROPERTY_REMOTE_RSSI)
+        CASE_RETURN_STR(BT_PROPERTY_ADAPTER_DISCOVERY_TIMEOUT)
+        CASE_RETURN_STR(BT_PROPERTY_ADAPTER_BONDED_DEVICES)
+        CASE_RETURN_STR(BT_PROPERTY_ADAPTER_SCAN_MODE)
+        CASE_RETURN_STR(BT_PROPERTY_REMOTE_FRIENDLY_NAME)
+
+        default:
+            return "UNKNOWN PROPERTY ID";
+    }
+}
+
+const char* dump_dm_event(UINT16 event)
+{
+    switch(event)
+    {
+        CASE_RETURN_STR(BTA_DM_ENABLE_EVT)
+        CASE_RETURN_STR(BTA_DM_DISABLE_EVT)
+        CASE_RETURN_STR(BTA_DM_PIN_REQ_EVT)
+        CASE_RETURN_STR(BTA_DM_AUTH_CMPL_EVT)
+        CASE_RETURN_STR(BTA_DM_AUTHORIZE_EVT)
+        CASE_RETURN_STR(BTA_DM_LINK_UP_EVT)
+        CASE_RETURN_STR(BTA_DM_LINK_DOWN_EVT)
+        CASE_RETURN_STR(BTA_DM_SIG_STRENGTH_EVT)
+        CASE_RETURN_STR(BTA_DM_BUSY_LEVEL_EVT)
+        CASE_RETURN_STR(BTA_DM_BOND_CANCEL_CMPL_EVT)
+        CASE_RETURN_STR(BTA_DM_SP_CFM_REQ_EVT)
+        CASE_RETURN_STR(BTA_DM_SP_KEY_NOTIF_EVT)
+        CASE_RETURN_STR(BTA_DM_SP_RMT_OOB_EVT)
+        CASE_RETURN_STR(BTA_DM_SP_KEYPRESS_EVT)
+        CASE_RETURN_STR(BTA_DM_ROLE_CHG_EVT)
+        CASE_RETURN_STR(BTA_DM_BLE_KEY_EVT)
+        CASE_RETURN_STR(BTA_DM_BLE_SEC_REQ_EVT)
+        CASE_RETURN_STR(BTA_DM_BLE_PASSKEY_NOTIF_EVT)
+        CASE_RETURN_STR(BTA_DM_BLE_PASSKEY_REQ_EVT)
+        CASE_RETURN_STR(BTA_DM_BLE_OOB_REQ_EVT)
+        CASE_RETURN_STR(BTA_DM_BLE_LOCAL_IR_EVT)
+        CASE_RETURN_STR(BTA_DM_BLE_LOCAL_ER_EVT)
+        CASE_RETURN_STR(BTA_DM_BLE_AUTH_CMPL_EVT)
+        CASE_RETURN_STR(BTA_DM_DEV_UNPAIRED_EVT)
+        CASE_RETURN_STR(BTA_DM_HW_ERROR_EVT)
+        CASE_RETURN_STR(BTA_DM_ENER_INFO_READ)
+
+        default:
+            return "UNKNOWN DM EVENT";
+    }
+}
+
+const char* dump_hf_event(UINT16 event)
+{
+    switch(event)
+    {
+        CASE_RETURN_STR(BTA_AG_ENABLE_EVT)
+        CASE_RETURN_STR(BTA_AG_REGISTER_EVT)
+        CASE_RETURN_STR(BTA_AG_OPEN_EVT)
+        CASE_RETURN_STR(BTA_AG_CLOSE_EVT)
+        CASE_RETURN_STR(BTA_AG_CONN_EVT)
+        CASE_RETURN_STR(BTA_AG_AUDIO_OPEN_EVT)
+        CASE_RETURN_STR(BTA_AG_AUDIO_CLOSE_EVT)
+        CASE_RETURN_STR(BTA_AG_SPK_EVT)
+        CASE_RETURN_STR(BTA_AG_MIC_EVT)
+        CASE_RETURN_STR(BTA_AG_AT_CKPD_EVT)
+        CASE_RETURN_STR(BTA_AG_DISABLE_EVT)
+#if (BTM_WBS_INCLUDED == TRUE )
+        CASE_RETURN_STR(BTA_AG_WBS_EVT)
+#endif
+        CASE_RETURN_STR(BTA_AG_AT_A_EVT)
+        CASE_RETURN_STR(BTA_AG_AT_D_EVT)
+        CASE_RETURN_STR(BTA_AG_AT_CHLD_EVT)
+        CASE_RETURN_STR(BTA_AG_AT_CHUP_EVT)
+        CASE_RETURN_STR(BTA_AG_AT_CIND_EVT)
+        CASE_RETURN_STR(BTA_AG_AT_VTS_EVT)
+        CASE_RETURN_STR(BTA_AG_AT_BINP_EVT)
+        CASE_RETURN_STR(BTA_AG_AT_BLDN_EVT)
+        CASE_RETURN_STR(BTA_AG_AT_BVRA_EVT)
+        CASE_RETURN_STR(BTA_AG_AT_NREC_EVT)
+        CASE_RETURN_STR(BTA_AG_AT_CNUM_EVT)
+        CASE_RETURN_STR(BTA_AG_AT_BTRH_EVT)
+        CASE_RETURN_STR(BTA_AG_AT_CLCC_EVT)
+        CASE_RETURN_STR(BTA_AG_AT_COPS_EVT)
+        CASE_RETURN_STR(BTA_AG_AT_UNAT_EVT)
+        CASE_RETURN_STR(BTA_AG_AT_CBC_EVT)
+        CASE_RETURN_STR(BTA_AG_AT_BAC_EVT)
+        CASE_RETURN_STR(BTA_AG_AT_BCS_EVT)
+
+        default:
+            return "UNKNOWN MSG ID";
+     }
+}
+
+const char* dump_hf_client_event(UINT16 event)
+{
+    switch(event)
+    {
+        CASE_RETURN_STR(BTA_HF_CLIENT_ENABLE_EVT)
+        CASE_RETURN_STR(BTA_HF_CLIENT_REGISTER_EVT)
+        CASE_RETURN_STR(BTA_HF_CLIENT_OPEN_EVT)
+        CASE_RETURN_STR(BTA_HF_CLIENT_CLOSE_EVT)
+        CASE_RETURN_STR(BTA_HF_CLIENT_CONN_EVT)
+        CASE_RETURN_STR(BTA_HF_CLIENT_AUDIO_OPEN_EVT)
+        CASE_RETURN_STR(BTA_HF_CLIENT_AUDIO_MSBC_OPEN_EVT)
+        CASE_RETURN_STR(BTA_HF_CLIENT_AUDIO_CLOSE_EVT)
+        CASE_RETURN_STR(BTA_HF_CLIENT_SPK_EVT)
+        CASE_RETURN_STR(BTA_HF_CLIENT_MIC_EVT)
+        CASE_RETURN_STR(BTA_HF_CLIENT_DISABLE_EVT)
+        CASE_RETURN_STR(BTA_HF_CLIENT_IND_EVT)
+        CASE_RETURN_STR(BTA_HF_CLIENT_VOICE_REC_EVT)
+        CASE_RETURN_STR(BTA_HF_CLIENT_OPERATOR_NAME_EVT)
+        CASE_RETURN_STR(BTA_HF_CLIENT_CLIP_EVT)
+        CASE_RETURN_STR(BTA_HF_CLIENT_CCWA_EVT)
+        CASE_RETURN_STR(BTA_HF_CLIENT_AT_RESULT_EVT)
+        CASE_RETURN_STR(BTA_HF_CLIENT_CLCC_EVT)
+        CASE_RETURN_STR(BTA_HF_CLIENT_CNUM_EVT)
+        CASE_RETURN_STR(BTA_HF_CLIENT_BTRH_EVT)
+        CASE_RETURN_STR(BTA_HF_CLIENT_BSIR_EVT)
+        CASE_RETURN_STR(BTA_HF_CLIENT_BINP_EVT)
+        CASE_RETURN_STR(BTA_HF_CLIENT_RING_INDICATION)
+        default:
+            return "UNKNOWN MSG ID";
+     }
+}
+
+const char* dump_hh_event(UINT16 event)
+{
+    switch(event)
+    {
+        CASE_RETURN_STR(BTA_HH_ENABLE_EVT)
+        CASE_RETURN_STR(BTA_HH_DISABLE_EVT)
+        CASE_RETURN_STR(BTA_HH_OPEN_EVT)
+        CASE_RETURN_STR(BTA_HH_CLOSE_EVT)
+        CASE_RETURN_STR(BTA_HH_GET_DSCP_EVT)
+        CASE_RETURN_STR(BTA_HH_GET_PROTO_EVT)
+        CASE_RETURN_STR(BTA_HH_GET_RPT_EVT)
+        CASE_RETURN_STR(BTA_HH_GET_IDLE_EVT)
+        CASE_RETURN_STR(BTA_HH_SET_PROTO_EVT)
+        CASE_RETURN_STR(BTA_HH_SET_RPT_EVT)
+        CASE_RETURN_STR(BTA_HH_SET_IDLE_EVT)
+        CASE_RETURN_STR(BTA_HH_VC_UNPLUG_EVT)
+        CASE_RETURN_STR(BTA_HH_ADD_DEV_EVT)
+        CASE_RETURN_STR(BTA_HH_RMV_DEV_EVT)
+        CASE_RETURN_STR(BTA_HH_API_ERR_EVT)
+        default:
+            return "UNKNOWN MSG ID";
+     }
+}
+
+const char* dump_hf_conn_state(UINT16 event)
+{
+    switch(event)
+    {
+        CASE_RETURN_STR(BTHF_CONNECTION_STATE_DISCONNECTED)
+        CASE_RETURN_STR(BTHF_CONNECTION_STATE_CONNECTING)
+        CASE_RETURN_STR(BTHF_CONNECTION_STATE_CONNECTED)
+        CASE_RETURN_STR(BTHF_CONNECTION_STATE_SLC_CONNECTED)
+        CASE_RETURN_STR(BTHF_CONNECTION_STATE_DISCONNECTING)
+        default:
+            return "UNKNOWN MSG ID";
+    }
+}
+
+const char* dump_hf_call_state(bthf_call_state_t call_state)
+{
+    switch(call_state)
+    {
+        CASE_RETURN_STR(BTHF_CALL_STATE_IDLE)
+        CASE_RETURN_STR(BTHF_CALL_STATE_HELD)
+        CASE_RETURN_STR(BTHF_CALL_STATE_DIALING)
+        CASE_RETURN_STR(BTHF_CALL_STATE_ALERTING)
+        CASE_RETURN_STR(BTHF_CALL_STATE_INCOMING)
+        CASE_RETURN_STR(BTHF_CALL_STATE_WAITING)
+        CASE_RETURN_STR(BTHF_CALL_STATE_ACTIVE)
+        default:
+            return "UNKNOWN CALL STATE";
+    }
+}
+
+const char* dump_thread_evt(bt_cb_thread_evt evt)
+{
+    switch(evt)
+    {
+        CASE_RETURN_STR(ASSOCIATE_JVM)
+        CASE_RETURN_STR(DISASSOCIATE_JVM)
+
+        default:
+            return "unknown thread evt";
+    }
+}
+
+const char* dump_hf_audio_state(UINT16 event)
+{
+    switch(event)
+    {
+        CASE_RETURN_STR(BTHF_AUDIO_STATE_DISCONNECTED)
+        CASE_RETURN_STR(BTHF_AUDIO_STATE_CONNECTING)
+        CASE_RETURN_STR(BTHF_AUDIO_STATE_CONNECTED)
+        CASE_RETURN_STR(BTHF_AUDIO_STATE_DISCONNECTING)
+        default:
+           return "UNKNOWN MSG ID";
+
+    }
+}
+
+const char* dump_av_conn_state(UINT16 event)
+{
+    switch(event)
+    {
+        CASE_RETURN_STR(BTAV_CONNECTION_STATE_DISCONNECTED)
+        CASE_RETURN_STR(BTAV_CONNECTION_STATE_CONNECTING)
+        CASE_RETURN_STR(BTAV_CONNECTION_STATE_CONNECTED)
+        CASE_RETURN_STR(BTAV_CONNECTION_STATE_DISCONNECTING)
+        default:
+            return "UNKNOWN MSG ID";
+    }
+}
+
+const char* dump_av_audio_state(UINT16 event)
+{
+    switch(event)
+    {
+        CASE_RETURN_STR(BTAV_AUDIO_STATE_REMOTE_SUSPEND)
+        CASE_RETURN_STR(BTAV_AUDIO_STATE_STOPPED)
+        CASE_RETURN_STR(BTAV_AUDIO_STATE_STARTED)
+        default:
+            return "UNKNOWN MSG ID";
+    }
+}
+
+const char* dump_adapter_scan_mode(bt_scan_mode_t mode)
+{
+    switch(mode)
+    {
+        CASE_RETURN_STR(BT_SCAN_MODE_NONE)
+        CASE_RETURN_STR(BT_SCAN_MODE_CONNECTABLE)
+        CASE_RETURN_STR(BT_SCAN_MODE_CONNECTABLE_DISCOVERABLE)
+
+        default:
+            return "unknown scan mode";
+    }
+}
+
+const char* dump_bt_status(bt_status_t status)
+{
+    switch(status)
+    {
+        CASE_RETURN_STR(BT_STATUS_SUCCESS)
+        CASE_RETURN_STR(BT_STATUS_FAIL)
+        CASE_RETURN_STR(BT_STATUS_NOT_READY)
+        CASE_RETURN_STR(BT_STATUS_NOMEM)
+        CASE_RETURN_STR(BT_STATUS_BUSY)
+        CASE_RETURN_STR(BT_STATUS_UNSUPPORTED)
+
+        default:
+            return "unknown scan mode";
+    }
+}
+
+const char *dump_rc_event(UINT8 event)
+{
+   switch(event) {
+        CASE_RETURN_STR(BTA_AV_RC_OPEN_EVT)
+        CASE_RETURN_STR(BTA_AV_RC_CLOSE_EVT)
+        CASE_RETURN_STR(BTA_AV_REMOTE_CMD_EVT)
+        CASE_RETURN_STR(BTA_AV_REMOTE_RSP_EVT)
+        CASE_RETURN_STR(BTA_AV_VENDOR_CMD_EVT)
+        CASE_RETURN_STR(BTA_AV_VENDOR_RSP_EVT)
+        CASE_RETURN_STR(BTA_AV_META_MSG_EVT)
+        CASE_RETURN_STR(BTA_AV_RC_FEAT_EVT)
+        default:
+            return "UNKNOWN_EVENT";
+   }
+}
+
+const char * dump_rc_notification_event_id(UINT8 event_id)
+{
+    switch(event_id)
+    {
+        CASE_RETURN_STR(AVRC_EVT_PLAY_STATUS_CHANGE)
+        CASE_RETURN_STR(AVRC_EVT_TRACK_CHANGE)
+        CASE_RETURN_STR(AVRC_EVT_TRACK_REACHED_END)
+        CASE_RETURN_STR(AVRC_EVT_TRACK_REACHED_START)
+        CASE_RETURN_STR(AVRC_EVT_PLAY_POS_CHANGED)
+        CASE_RETURN_STR(AVRC_EVT_BATTERY_STATUS_CHANGE)
+        CASE_RETURN_STR(AVRC_EVT_SYSTEM_STATUS_CHANGE)
+        CASE_RETURN_STR(AVRC_EVT_APP_SETTING_CHANGE)
+        CASE_RETURN_STR(AVRC_EVT_VOLUME_CHANGE)
+
+        default:
+            return "Unhandled Event ID";
+    }
+}
+
+const char*  dump_rc_pdu(UINT8 pdu)
+{
+    switch(pdu)
+    {
+        CASE_RETURN_STR(AVRC_PDU_LIST_PLAYER_APP_ATTR)
+        CASE_RETURN_STR(AVRC_PDU_LIST_PLAYER_APP_VALUES)
+        CASE_RETURN_STR(AVRC_PDU_GET_CUR_PLAYER_APP_VALUE)
+        CASE_RETURN_STR(AVRC_PDU_SET_PLAYER_APP_VALUE)
+        CASE_RETURN_STR(AVRC_PDU_GET_PLAYER_APP_ATTR_TEXT)
+        CASE_RETURN_STR(AVRC_PDU_GET_PLAYER_APP_VALUE_TEXT)
+        CASE_RETURN_STR(AVRC_PDU_INFORM_DISPLAY_CHARSET)
+        CASE_RETURN_STR(AVRC_PDU_INFORM_BATTERY_STAT_OF_CT)
+        CASE_RETURN_STR(AVRC_PDU_GET_ELEMENT_ATTR)
+        CASE_RETURN_STR(AVRC_PDU_GET_PLAY_STATUS)
+        CASE_RETURN_STR(AVRC_PDU_REGISTER_NOTIFICATION)
+        CASE_RETURN_STR(AVRC_PDU_REQUEST_CONTINUATION_RSP)
+        CASE_RETURN_STR(AVRC_PDU_ABORT_CONTINUATION_RSP)
+        CASE_RETURN_STR(AVRC_PDU_SET_ABSOLUTE_VOLUME)
+        CASE_RETURN_STR(AVRC_PDU_SET_ADDRESSED_PLAYER)
+        CASE_RETURN_STR(AVRC_PDU_CHANGE_PATH)
+        CASE_RETURN_STR(AVRC_PDU_GET_CAPABILITIES)
+        default:
+            return "Unknown PDU";
+    }
+}
diff --git a/rtkbt/code/bt/btif/src/stack_manager.c b/rtkbt/code/bt/btif/src/stack_manager.c
new file mode 100755
index 0000000..5ab8296
--- /dev/null
+++ b/rtkbt/code/bt/btif/src/stack_manager.c
@@ -0,0 +1,263 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_stack_manager"
+
+#include "stack_manager.h"
+
+#include <hardware/bluetooth.h>
+
+#include "btcore/include/module.h"
+#include "btcore/include/osi_module.h"
+#include "btif_api.h"
+#include "btif_common.h"
+#include "device/include/controller.h"
+#include "osi/include/log.h"
+#include "osi/include/osi.h"
+#include "osi/include/semaphore.h"
+#include "osi/include/thread.h"
+
+// Temp includes
+#include "btif_config.h"
+#include "btif_profile_queue.h"
+#include "bt_utils.h"
+#ifdef BLUETOOTH_RTK_API
+#include "rtkbt_api.h"
+#include "uipc.h"
+#endif
+
+static thread_t *management_thread;
+
+// If initialized, any of the bluetooth API functions can be called.
+// (e.g. turning logging on and off, enabling/disabling the stack, etc)
+static bool stack_is_initialized;
+// If running, the stack is fully up and able to bluetooth.
+static bool stack_is_running;
+
+static void event_init_stack(void *context);
+static void event_start_up_stack(void *context);
+static void event_shut_down_stack(void *context);
+static void event_clean_up_stack(void *context);
+
+static void event_signal_stack_up(void *context);
+static void event_signal_stack_down(void *context);
+
+// Unvetted includes/imports, etc which should be removed or vetted in the future
+static future_t *hack_future;
+void bte_main_enable();
+void btif_thread_post(thread_fn func, void *context);
+// End unvetted section
+
+// Interface functions
+
+static void init_stack(void) {
+  // This is a synchronous process. Post it to the thread though, so
+  // state modification only happens there. Using the thread to perform
+  // all stack operations ensures that the operations are done serially
+  // and do not overlap.
+  semaphore_t *semaphore = semaphore_new(0);
+  thread_post(management_thread, event_init_stack, semaphore);
+  semaphore_wait(semaphore);
+  semaphore_free(semaphore);
+}
+
+static void start_up_stack_async(void) {
+#ifdef BLUETOOTH_RTK_API
+  rtkbt_api_Hook(RTKBT_HOOK_ENABLE_BT_BEGIN, NULL, 0);
+#endif
+  thread_post(management_thread, event_start_up_stack, NULL);
+}
+
+static void shut_down_stack_async(void) {
+  thread_post(management_thread, event_shut_down_stack, NULL);
+}
+
+static void clean_up_stack(void) {
+  // This is a synchronous process. Post it to the thread though, so
+  // state modification only happens there.
+  semaphore_t *semaphore = semaphore_new(0);
+  thread_post(management_thread, event_clean_up_stack, semaphore);
+  semaphore_wait(semaphore);
+  semaphore_free(semaphore);
+}
+
+static bool get_stack_is_running(void) {
+  return stack_is_running;
+}
+
+// Internal functions
+
+// Synchronous function to initialize the stack
+static void event_init_stack(void *context) {
+  semaphore_t *semaphore = (semaphore_t *)context;
+
+  LOG_INFO(LOG_TAG, "%s is initializing the stack", __func__);
+
+ if (stack_is_initialized) {
+   LOG_INFO(LOG_TAG, "%s found the stack already in initialized state",
+            __func__);
+ } else {
+    module_management_start();
+
+    module_init(get_module(OSI_MODULE));
+    module_init(get_module(BT_UTILS_MODULE));
+    module_init(get_module(BTIF_CONFIG_MODULE));
+    btif_init_bluetooth();
+
+    // stack init is synchronous, so no waiting necessary here
+    stack_is_initialized = true;
+  }
+
+  LOG_INFO(LOG_TAG, "%s finished", __func__);
+
+  if (semaphore)
+    semaphore_post(semaphore);
+}
+
+static void ensure_stack_is_initialized(void) {
+  if (!stack_is_initialized) {
+    LOG_WARN(LOG_TAG, "%s found the stack was uninitialized. Initializing now.", __func__);
+    // No semaphore needed since we are calling it directly
+    event_init_stack(NULL);
+  }
+}
+
+// Synchronous function to start up the stack
+static void event_start_up_stack(UNUSED_ATTR void *context) {
+  if (stack_is_running) {
+    LOG_INFO(LOG_TAG, "%s stack already brought up", __func__);
+    return;
+  }
+
+  ensure_stack_is_initialized();
+
+  LOG_INFO(LOG_TAG, "%s is bringing up the stack", __func__);
+  future_t *local_hack_future = future_new();
+  hack_future = local_hack_future;
+
+  // Include this for now to put btif config into a shutdown-able state
+  module_start_up(get_module(BTIF_CONFIG_MODULE));
+  bte_main_enable();
+
+  if (future_await(local_hack_future) != FUTURE_SUCCESS) {
+    LOG_ERROR(LOG_TAG, "%s failed to start up the stack", __func__);
+    stack_is_running = true; // So stack shutdown actually happens
+    event_shut_down_stack(NULL);
+    return;
+  }
+
+  stack_is_running = true;
+  LOG_INFO(LOG_TAG, "%s finished", __func__);
+  btif_thread_post(event_signal_stack_up, NULL);
+}
+
+// Synchronous function to shut down the stack
+static void event_shut_down_stack(UNUSED_ATTR void *context) {
+  if (!stack_is_running) {
+    LOG_INFO(LOG_TAG, "%s stack is already brought down", __func__);
+    return;
+  }
+
+  LOG_INFO(LOG_TAG, "%s is bringing down the stack", __func__);
+  future_t *local_hack_future = future_new();
+  hack_future = local_hack_future;
+  stack_is_running = false;
+
+  btif_disable_bluetooth();
+  module_shut_down(get_module(BTIF_CONFIG_MODULE));
+
+  future_await(local_hack_future);
+  module_shut_down(get_module(CONTROLLER_MODULE)); // Doesn't do any work, just puts it in a restartable state
+
+  LOG_INFO(LOG_TAG, "%s finished", __func__);
+  btif_thread_post(event_signal_stack_down, NULL);
+}
+
+static void ensure_stack_is_not_running(void) {
+  if (stack_is_running) {
+    LOG_WARN(LOG_TAG, "%s found the stack was still running. Bringing it down now.", __func__);
+    event_shut_down_stack(NULL);
+  }
+}
+
+// Synchronous function to clean up the stack
+static void event_clean_up_stack(void *context) {
+  if (!stack_is_initialized) {
+    LOG_INFO(LOG_TAG, "%s found the stack already in a clean state", __func__);
+    goto cleanup;
+  }
+
+  ensure_stack_is_not_running();
+
+  LOG_INFO(LOG_TAG, "%s is cleaning up the stack", __func__);
+  future_t *local_hack_future = future_new();
+  hack_future = local_hack_future;
+  stack_is_initialized = false;
+
+  btif_cleanup_bluetooth();
+  module_clean_up(get_module(BTIF_CONFIG_MODULE));
+  module_clean_up(get_module(BT_UTILS_MODULE));
+  module_clean_up(get_module(OSI_MODULE));
+  module_management_stop();
+  LOG_INFO(LOG_TAG, "%s finished", __func__);
+
+cleanup:;
+  semaphore_t *semaphore = (semaphore_t *)context;
+  if (semaphore)
+    semaphore_post(semaphore);
+}
+
+static void event_signal_stack_up(UNUSED_ATTR void *context) {
+  // Notify BTIF connect queue that we've brought up the stack. It's
+  // now time to dispatch all the pending profile connect requests.
+  btif_queue_connect_next();
+  HAL_CBACK(bt_hal_cbacks, adapter_state_changed_cb, BT_STATE_ON);
+}
+
+static void event_signal_stack_down(UNUSED_ATTR void *context) {
+  HAL_CBACK(bt_hal_cbacks, adapter_state_changed_cb, BT_STATE_OFF);
+}
+
+static void ensure_manager_initialized(void) {
+  if (management_thread)
+    return;
+
+  management_thread = thread_new("stack_manager");
+  if (!management_thread) {
+    LOG_ERROR(LOG_TAG, "%s unable to create stack management thread", __func__);
+    return;
+  }
+}
+
+static const stack_manager_t interface = {
+  init_stack,
+  start_up_stack_async,
+  shut_down_stack_async,
+  clean_up_stack,
+
+  get_stack_is_running
+};
+
+const stack_manager_t *stack_manager_get_interface() {
+  ensure_manager_initialized();
+  return &interface;
+}
+
+future_t *stack_manager_get_hack_future() {
+  return hack_future;
+}
diff --git a/rtkbt/code/bt/btif/test/btif_storage_test.cpp b/rtkbt/code/bt/btif/test/btif_storage_test.cpp
new file mode 100755
index 0000000..76fcb95
--- /dev/null
+++ b/rtkbt/code/bt/btif/test/btif_storage_test.cpp
@@ -0,0 +1,66 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2016 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#include <gtest/gtest.h>
+
+extern "C" {
+#include "btif/include/btif_storage.h"
+#include "btif/include/btif_util.h"
+}
+
+TEST(BtifStorageTest, test_string_to_uuid) {
+  const char *s1 = "e39c6285-867f-4b1d-9db0-35fbd9aebf22";
+  const uint8_t u1[] = {0xe3, 0x9c, 0x62, 0x85, 0x86, 0x7f, 0x4b, 0x1d,
+                        0x9d, 0xb0, 0x35, 0xfb, 0xd9, 0xae, 0xbf, 0x22};
+
+  bt_uuid_t uuid;
+  memset(&uuid, 0, sizeof(uuid));
+  EXPECT_FALSE(memcmp(&uuid, u1, sizeof(u1)) == 0);
+
+  bool rc = string_to_uuid(s1, &uuid);
+  EXPECT_TRUE(rc);
+  EXPECT_TRUE(memcmp(&uuid, u1, sizeof(u1)) == 0);
+}
+
+TEST(BtifStorageTest, test_string_to_uuid_invalid) {
+  bt_uuid_t uuid;
+  bool rc = string_to_uuid("This is not a UUID", &uuid);
+  EXPECT_FALSE(rc);
+}
+
+TEST(BtifStorageTest, test_uuid_split_multiple) {
+  const char *s1 = "e39c6285-867f-4b1d-9db0-35fbd9aebf22 e39c6285-867f-4b1d-9db0-35fbd9aebf23";
+  const uint8_t u1[] = {0xe3, 0x9c, 0x62, 0x85, 0x86, 0x7f, 0x4b, 0x1d,
+                        0x9d, 0xb0, 0x35, 0xfb, 0xd9, 0xae, 0xbf, 0x22};
+  const uint8_t u2[] = {0xe3, 0x9c, 0x62, 0x85, 0x86, 0x7f, 0x4b, 0x1d,
+                        0x9d, 0xb0, 0x35, 0xfb, 0xd9, 0xae, 0xbf, 0x23};
+
+  bt_uuid_t uuids[2];
+  size_t num_uuids = btif_split_uuids_string(s1, uuids, 2);
+  EXPECT_EQ(num_uuids, 2u);
+  EXPECT_TRUE(memcmp(&uuids[0], u1, sizeof(u1)) == 0);
+  EXPECT_TRUE(memcmp(&uuids[1], u2, sizeof(u2)) == 0);
+}
+
+TEST(BtifStorageTest, test_uuid_split_partial) {
+  const char *s1 = "e39c6285-867f-4b1d-9db0-35fbd9aebf22 e39c6285-867f-4b1d-9db0-35fbd9aebf23";
+
+  bt_uuid_t uuids[2];
+  size_t num_uuids = btif_split_uuids_string(s1, uuids, 1);
+  EXPECT_EQ(num_uuids, 1u);
+}
diff --git a/rtkbt/code/bt/build/BUILD.gn b/rtkbt/code/bt/build/BUILD.gn
new file mode 100755
index 0000000..42b530c
--- /dev/null
+++ b/rtkbt/code/bt/build/BUILD.gn
@@ -0,0 +1,85 @@
+#
+#  Copyright (C) 2015 Google, Inc.
+#
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at:
+#
+#  http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+#
+
+declare_args() {
+  # Include path for hardware/bluetooth.h
+  libhw_include_path = ""
+  core_include_path = ""
+  audio_include_path = ""
+}
+
+config("default_include_dirs") {
+  # TODO(armansito): Remove "core_include_path" once the cutils includes have
+  # been removed.
+  assert(libhw_include_path != "",
+         "libhardware_include_path build argument wasn't provided.")
+  assert(core_include_path != "",
+         "core_include_path build argument wasn't provided.")
+  assert(audio_include_path != "",
+         "audio_include_path build argument wasn't provided.")
+  include_dirs = [
+    libhw_include_path,
+    core_include_path,
+    audio_include_path,
+  ]
+}
+
+config("linux") {
+  # TODO(keybuk): AndroidConfig.h or equivalent
+
+  cflags = [
+    #TODO(jpawlowski): uncomment once we have no warnings on linux build
+    #    "-Wall",
+    #    "-Werror",
+    "-g",
+    "-O0",
+    "-fpic",
+    "-fdata-sections",
+    "-ffunction-sections",
+    "-fvisibility=hidden",
+  ]
+
+  cflags_c = [ "-std=c99" ]
+
+  cflags_cc = [
+#TODO(jpawlowski): we should use same c++ version as Android, which is c++11,
+# but we use some c++14 features. Uncomment when this get fixed in code.:
+    "-std=c++14",
+    "-fno-exceptions",
+  ]
+
+  defines = [
+    "_FORTIFY_SOURCE=2",
+    "_GNU_SOURCE",
+    "HAS_NO_BDROID_BUILDCFG",
+    "LOG_NDEBUG=1",
+    "EXPORT_SYMBOL=__attribute__((visibility(\"default\")))",
+    "KERNEL_MISSING_CLOCK_BOOTTIME_ALARM=TRUE",
+
+    # This is a macro to that can be used by source code to detect if the
+    # current build is done by GN or via Android.mk. This is a temporary
+    # workaround until we can remove all Android-specific dependencies.
+    "OS_GENERIC",
+  ]
+}
+
+config("pic") {
+  cflags = [ "-fPIC" ]
+}
+
+config("gc") {
+  ldflags = [ "-Wl,--gc-sections" ]
+}
diff --git a/rtkbt/code/bt/build/config/BUILDCONFIG.gn b/rtkbt/code/bt/build/config/BUILDCONFIG.gn
new file mode 100755
index 0000000..419d62f
--- /dev/null
+++ b/rtkbt/code/bt/build/config/BUILDCONFIG.gn
@@ -0,0 +1,49 @@
+#
+#  Copyright (C) 2015 Google, Inc.
+#
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at:
+#
+#  http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+#
+
+set_default_toolchain("//build/toolchain/gcc")
+
+set_defaults("executable") {
+  configs = [
+    "//build:linux",
+    "//build:gc",
+    "//build:default_include_dirs",
+  ]
+}
+
+set_defaults("shared_library") {
+  configs = [
+    "//build:linux",
+    "//build:gc",
+    "//build:default_include_dirs",
+  ]
+}
+
+set_defaults("source_set") {
+  configs = [
+    "//build:linux",
+    "//build:gc",
+    "//build:default_include_dirs",
+  ]
+}
+
+set_defaults("static_library") {
+  configs = [
+    "//build:linux",
+    "//build:gc",
+    "//build:default_include_dirs",
+  ]
+}
diff --git a/rtkbt/code/bt/build/secondary/third_party/googletest/BUILD.gn b/rtkbt/code/bt/build/secondary/third_party/googletest/BUILD.gn
new file mode 100755
index 0000000..0122adc
--- /dev/null
+++ b/rtkbt/code/bt/build/secondary/third_party/googletest/BUILD.gn
@@ -0,0 +1,91 @@
+#
+#  Copyright (C) 2016 Google, Inc.
+#
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at:
+#
+#  http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+#
+
+config("gtest_config") {
+  # Gtest headers need to be able to find themselves.
+  include_dirs = [ "googletest/include" ]
+
+  defines = [ "GTEST_HAS_RTTI=0" ]
+}
+
+config("gtest_direct_config") {
+  visibility = [ ":*" ]
+  defines = [ "UNIT_TEST" ]
+}
+
+static_library("gtest") {
+  testonly = true
+  sources = [
+    "googletest/src/gtest-all.cc",
+  ]
+
+  include_dirs = [
+    "googletest/",
+    "googletest/include",
+  ]
+
+  all_dependent_configs = [ ":gtest_config" ]
+  public_configs = [ ":gtest_direct_config" ]
+}
+
+source_set("gtest_main") {
+  testonly = true
+  sources = [
+    "googletest/src/gtest_main.cc",
+  ]
+  deps = [
+    ":gtest",
+  ]
+}
+
+config("gmock_config") {
+  # Gmock headers need to be able to find themselves.
+  include_dirs = [ "googlemock/include" ]
+}
+
+static_library("gmock") {
+  testonly = true
+  sources = [
+    "googlemock/src/gmock-all.cc",
+  ]
+
+  # This project includes some stuff form gtest's guts.
+  include_dirs = [
+    "googlemock",
+    "googlemock/include",
+  ]
+
+  public_configs = [
+    ":gmock_config",
+    ":gtest_config",
+  ]
+}
+
+static_library("gmock_main") {
+  testonly = true
+  sources = [
+    "googlemock/src/gmock_main.cc",
+  ]
+  deps = [
+    ":gmock",
+    ":gtest",
+  ]
+
+  public_configs = [
+    ":gmock_config",
+    ":gtest_config",
+  ]
+}
diff --git a/rtkbt/code/bt/build/secondary/third_party/libchrome/BUILD.gn b/rtkbt/code/bt/build/secondary/third_party/libchrome/BUILD.gn
new file mode 100755
index 0000000..167cb40
--- /dev/null
+++ b/rtkbt/code/bt/build/secondary/third_party/libchrome/BUILD.gn
@@ -0,0 +1,256 @@
+#
+#  Copyright (C) 2015 Google, Inc.
+#
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at:
+#
+#  http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+#
+
+source_set("base_sources") {
+  sources = [
+    "base/at_exit.cc",
+    "base/atomic_ref_count.h",
+    "base/atomic_sequence_num.h",
+    "base/atomicops.h",
+    "base/base64.cc",
+    "base/base64.h",
+    "base/base_export.h",
+    "base/base_switches.cc",
+    "base/bind_helpers.cc",
+    "base/build_time.cc",
+    "base/callback_helpers.cc",
+    "base/callback_internal.cc",
+    "base/command_line.cc",
+    "base/cpu.cc",
+    "base/debug/alias.cc",
+    "base/debug/debugger.cc",
+    "base/debug/debugger_posix.cc",
+    "base/debug/stack_trace.cc",
+    "base/debug/stack_trace_posix.cc",
+    "base/debug/task_annotator.cc",
+    "base/environment.cc",
+    "base/files/file.cc",
+    "base/files/file_enumerator.cc",
+    "base/files/file_enumerator_posix.cc",
+    "base/files/file_path.cc",
+    "base/files/file_path_constants.cc",
+    "base/files/file_path_watcher.cc",
+    "base/files/file_path_watcher_linux.cc",
+    "base/files/file_posix.cc",
+    "base/files/file_tracing.cc",
+    "base/files/file_util.cc",
+    "base/files/file_util_linux.cc",
+    "base/files/file_util_posix.cc",
+    "base/files/important_file_writer.cc",
+    "base/files/scoped_file.cc",
+    "base/files/scoped_temp_dir.cc",
+    "base/guid.cc",
+    "base/guid_posix.cc",
+    "base/json/json_parser.cc",
+    "base/json/json_reader.cc",
+    "base/json/json_string_value_serializer.cc",
+    "base/json/json_writer.cc",
+    "base/json/string_escape.cc",
+    "base/lazy_instance.cc",
+    "base/location.cc",
+    "base/logging.cc",
+    "base/md5.cc",
+    "base/memory/ref_counted.cc",
+    "base/memory/ref_counted_memory.cc",
+    "base/memory/singleton.cc",
+    "base/memory/weak_ptr.cc",
+    "base/message_loop/incoming_task_queue.cc",
+    "base/message_loop/message_loop.cc",
+    "base/message_loop/message_loop_task_runner.cc",
+    "base/message_loop/message_pump.cc",
+    "base/message_loop/message_pump_default.cc",
+
+    # we don't want any glib dependencies.
+    #   "base/message_loop/message_pump_glib.cc",
+    "base/message_loop/message_pump_libevent.cc",
+    "base/metrics/bucket_ranges.cc",
+    "base/metrics/field_trial.cc",
+    "base/metrics/metrics_hashes.cc",
+    "base/metrics/histogram_base.cc",
+    "base/metrics/histogram.cc",
+    "base/metrics/histogram_samples.cc",
+    "base/metrics/histogram_snapshot_manager.cc",
+    "base/metrics/sample_map.cc",
+    "base/metrics/sample_vector.cc",
+    "base/metrics/sparse_histogram.cc",
+    "base/metrics/statistics_recorder.cc",
+    "base/pending_task.cc",
+    "base/pickle.cc",
+    "base/posix/file_descriptor_shuffle.cc",
+    "base/posix/safe_strerror.cc",
+    "base/posix/unix_domain_socket_linux.cc",
+    "base/process/internal_linux.cc",
+    "base/process/kill.cc",
+    "base/process/kill_posix.cc",
+    "base/process/launch.cc",
+    "base/process/launch_posix.cc",
+    "base/process/process_handle_linux.cc",
+    "base/process/process_handle_posix.cc",
+    "base/process/process_iterator.cc",
+    "base/process/process_iterator_linux.cc",
+    "base/process/process_metrics.cc",
+    "base/process/process_metrics_linux.cc",
+    "base/process/process_metrics_posix.cc",
+    "base/process/process_posix.cc",
+    "base/profiler/alternate_timer.cc",
+    "base/profiler/scoped_profile.cc",
+    "base/profiler/scoped_tracker.cc",
+    "base/profiler/tracked_time.cc",
+    "base/rand_util.cc",
+    "base/rand_util_posix.cc",
+    "base/run_loop.cc",
+    "base/sequence_checker_impl.cc",
+    "base/sequenced_task_runner.cc",
+    "base/sha1_portable.cc",
+    "base/strings/pattern.cc",
+    "base/strings/safe_sprintf.cc",
+    "base/strings/string16.cc",
+    "base/strings/string_number_conversions.cc",
+    "base/strings/string_piece.cc",
+    "base/strings/stringprintf.cc",
+    "base/strings/string_split.cc",
+    "base/strings/string_util.cc",
+    "base/strings/string_util_constants.cc",
+    "base/strings/sys_string_conversions_posix.cc",
+    "base/strings/utf_string_conversions.cc",
+    "base/strings/utf_string_conversion_utils.cc",
+    "base/synchronization/cancellation_flag.cc",
+    "base/synchronization/condition_variable_posix.cc",
+    "base/synchronization/lock.cc",
+    "base/synchronization/lock_impl_posix.cc",
+    "base/synchronization/waitable_event_posix.cc",
+    "base/sync_socket_posix.cc",
+    "base/sys_info.cc",
+
+    # TODO(armansito): For our GN builds these platform-specific implementations
+    # don't really make that much sense but instead of removing the line I'm
+    # commenting it out in case we want to re-add it later (it's included in the
+    # libchrome Android.mk).
+    #"sys_info_chromeos.cc",
+    "base/sys_info_linux.cc",
+    "base/sys_info_posix.cc",
+    "base/task/cancelable_task_tracker.cc",
+    "base/task_runner.cc",
+    "base/third_party/icu/icu_utf.cc",
+    "base/third_party/nspr/prtime.cc",
+    "base/threading/non_thread_safe_impl.cc",
+    "base/threading/platform_thread_internal_posix.cc",
+    "base/threading/platform_thread_linux.cc",
+    "base/threading/platform_thread_posix.cc",
+    "base/threading/post_task_and_reply_impl.cc",
+    "base/threading/sequenced_worker_pool.cc",
+    "base/threading/simple_thread.cc",
+    "base/threading/thread.cc",
+    "base/threading/thread_checker_impl.cc",
+    "base/threading/thread_collision_warner.cc",
+    "base/threading/thread_id_name_manager.cc",
+    "base/threading/thread_local_posix.cc",
+    "base/threading/thread_local_storage.cc",
+    "base/threading/thread_local_storage_posix.cc",
+    "base/threading/thread_restrictions.cc",
+    "base/threading/worker_pool.cc",
+    "base/threading/worker_pool_posix.cc",
+    "base/thread_task_runner_handle.cc",
+    "base/time/clock.cc",
+    "base/time/default_clock.cc",
+    "base/time/default_tick_clock.cc",
+    "base/timer/elapsed_timer.cc",
+    "base/timer/timer.cc",
+    "base/time/tick_clock.cc",
+    "base/time/time.cc",
+    "base/time/time_posix.cc",
+    "base/trace_event/heap_profiler_allocation_context.cc",
+    "base/trace_event/heap_profiler_allocation_context_tracker.cc",
+    "base/trace_event/heap_profiler_stack_frame_deduplicator.cc",
+    "base/trace_event/heap_profiler_type_name_deduplicator.cc",
+    "base/trace_event/malloc_dump_provider.cc",
+    "base/trace_event/memory_allocator_dump.cc",
+    "base/trace_event/memory_allocator_dump_guid.cc",
+    "base/trace_event/memory_dump_manager.cc",
+    "base/trace_event/memory_dump_session_state.cc",
+    "base/trace_event/process_memory_dump.cc",
+    "base/trace_event/process_memory_maps.cc",
+    "base/trace_event/process_memory_maps_dump_provider.cc",
+    "base/trace_event/process_memory_totals.cc",
+    "base/trace_event/process_memory_totals_dump_provider.cc",
+    "base/trace_event/trace_buffer.cc",
+    "base/trace_event/trace_config.cc",
+    "base/trace_event/trace_event_argument.cc",
+    "base/trace_event/trace_event_impl.cc",
+    "base/trace_event/trace_event_memory_overhead.cc",
+    "base/trace_event/trace_event_synthetic_delay.cc",
+    "base/trace_event/trace_log.cc",
+    "base/trace_event/trace_log_constants.cc",
+    "base/trace_event/trace_sampling_thread.cc",
+    "base/tracked_objects.cc",
+    "base/tracking_info.cc",
+    "base/values.cc",
+    "base/vlog.cc",
+  ]
+
+  defines = [
+    "BASE_IMPLEMENTATION",
+
+    # trick libchrome to think we're building host code within an Android checkout
+    # thanks to it no glib dependency
+    "__ANDROID_HOST__=1",
+    "OS_LINUX=1",
+  ]
+
+  include_dirs = [
+    "//",
+    "//third_party/googletest/googletest/include",
+    "//third_party/libchrome",
+    "//third_party/libevent",
+    "//third_party/libevent/include",
+    "//third_party/libchrome/base",
+    "//third_party/modp_b64",
+  ]
+}
+
+config("libchrome_config") {
+  # libchrome headers need to be able to find themselves.
+  include_dirs = [
+    "//third_party/googletest/googletest/include",
+    "//third_party/libchrome",
+ ]
+}
+
+static_library("base") {
+  deps = [
+    ":base_sources",
+  ]
+
+  cflags = [
+    "-Wno-char-subscripts",
+    "-Wno-missing-field-initializers",
+    "-Wno-unused-function",
+    "-Wno-unused_parameter",
+  ]
+  cflags_cc = [
+    "-Wno-deprecated-register",
+    "-Wno-non-virtual-dtor",
+    "-Wno-sign-promo",
+  ]
+
+  libs = [
+    "-levent",
+    "-levent_core",
+    "-lpthread",
+  ]
+
+  public_configs = [ ":libchrome_config" ]
+}
diff --git a/rtkbt/code/bt/build/toolchain/gcc/BUILD.gn b/rtkbt/code/bt/build/toolchain/gcc/BUILD.gn
new file mode 100755
index 0000000..888b015
--- /dev/null
+++ b/rtkbt/code/bt/build/toolchain/gcc/BUILD.gn
@@ -0,0 +1,97 @@
+#
+#  Copyright (C) 2015 Google, Inc.
+#
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at:
+#
+#  http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+#
+cc = "gcc"
+cxx = "g++"
+
+toolchain("gcc") {
+  tool("cc") {
+    depfile = "{{output}}.d"
+    command = "$cc -MMD -MF $depfile {{defines}} {{include_dirs}} {{cflags}} {{cflags_c}} -c {{source}} -o {{output}}"
+    depsformat = "gcc"
+    description = "CC {{output}}"
+    outputs = [
+      "{{source_out_dir}}/{{target_output_name}}.{{source_name_part}}.o",
+    ]
+  }
+
+  tool("cxx") {
+    depfile = "{{output}}.d"
+    command = "$cxx -MMD -MF $depfile {{defines}} {{include_dirs}} {{cflags}} {{cflags_cc}} -c {{source}} -o {{output}}"
+    depsformat = "gcc"
+    description = "CXX {{output}}"
+    outputs = [
+      "{{source_out_dir}}/{{target_output_name}}.{{source_name_part}}.o",
+    ]
+  }
+
+  tool("alink") {
+    rspfile = "{{output}}.rsp"
+    command = "rm -f {{output}} && ar rcs {{output}} @$rspfile"
+    description = "AR {{target_output_name}}{{output_extension}}"
+    rspfile_content = "{{inputs}}"
+    outputs = [
+      "{{target_out_dir}}/{{target_output_name}}{{output_extension}}",
+    ]
+    default_output_extension = ".a"
+
+    output_prefix = "lib"
+  }
+
+  tool("solink") {
+    soname = "{{target_output_name}}{{output_extension}}"  # e.g. "libfoo.so".
+    rspfile = soname + ".rsp"
+
+    command =
+        "$cxx -shared {{ldflags}} -o $soname -Wl,-soname=$soname @$rspfile"
+    rspfile_content = "-Wl,--whole-archive {{inputs}} {{solibs}} -Wl,--no-whole-archive {{libs}}"
+
+    description = "SOLINK $soname"
+
+    # Use this for {{output_extension}} expansions unless a target manually
+    # overrides it (in which case {{output_extension}} will be what the target
+    # specifies).
+    default_output_extension = ".so"
+
+    outputs = [
+      soname,
+    ]
+    link_output = soname
+    depend_output = soname
+
+    output_prefix = "lib"
+  }
+
+  tool("link") {
+    outfile = "{{target_output_name}}{{output_extension}}"
+    rspfile = "$outfile.rsp"
+    command = "$cxx {{ldflags}} -o $outfile -Wl,--start-group @$rspfile {{solibs}} -Wl,--end-group {{libs}}"
+    description = "LINK $outfile"
+    rspfile_content = "{{inputs}}"
+    outputs = [
+      outfile,
+    ]
+  }
+
+  tool("stamp") {
+    command = "touch {{output}}"
+    description = "STAMP {{output}}"
+  }
+
+  tool("copy") {
+    command = "cp -af {{source}} {{output}}"
+    description = "COPY {{source}} {{output}}"
+  }
+}
diff --git a/rtkbt/code/bt/conf/Android.mk b/rtkbt/code/bt/conf/Android.mk
new file mode 100755
index 0000000..5bc5a63
--- /dev/null
+++ b/rtkbt/code/bt/conf/Android.mk
@@ -0,0 +1,22 @@
+LOCAL_PATH := $(call my-dir)
+
+# Bluetooth bt_stack.conf config file
+# ========================================================
+include $(CLEAR_VARS)
+LOCAL_MODULE := bt_stack.conf
+LOCAL_MODULE_CLASS := ETC
+LOCAL_MODULE_PATH := $(TARGET_OUT)/etc/bluetooth
+LOCAL_MODULE_TAGS := optional
+LOCAL_SRC_FILES := $(LOCAL_MODULE)
+include $(BUILD_PREBUILT)
+
+# Bluetooth bt_did.conf config file
+# ========================================================
+include $(CLEAR_VARS)
+LOCAL_MODULE := bt_did.conf
+LOCAL_MODULE_CLASS := ETC
+LOCAL_MODULE_PATH := $(TARGET_OUT)/etc/bluetooth
+LOCAL_MODULE_TAGS := optional
+LOCAL_SRC_FILES := $(LOCAL_MODULE)
+include $(BUILD_PREBUILT)
+
diff --git a/rtkbt/code/bt/conf/bt_did.conf b/rtkbt/code/bt/conf/bt_did.conf
new file mode 100755
index 0000000..ea89c06
--- /dev/null
+++ b/rtkbt/code/bt/conf/bt_did.conf
@@ -0,0 +1,85 @@
+# Device ID (DID) configuration
+[DID1]
+
+# Primary Record - true or false (default)
+# There can be only one primary record
+primaryRecord = true
+
+# Vendor ID '0xFFFF' indicates no Device ID Service Record is present in the device
+# 0x000F = Broadcom Corporation (default)
+#vendorId = 0x000F
+
+# Vendor ID Source
+# 0x0001 = Bluetooth SIG assigned Device ID Vendor ID value (default)
+# 0x0002 = USB Implementer’s Forum assigned Device ID Vendor ID value
+#vendorIdSource = 0x0001
+
+# Product ID & Product Version
+# Per spec DID v1.3 0xJJMN for version is interpreted as JJ.M.N
+# JJ: major version number, M: minor version number, N: sub-minor version number
+# For example: 1200, v14.3.6
+productId = 0x1200
+version = 0x1436
+
+# Optional attributes
+#clientExecutableURL =
+#serviceDescription =
+#documentationURL =
+
+#=================================================================================================#
+# Device ID (DID) configuration
+[DID2]
+
+# Primary Record - true or false (default)
+# There can be only one primary record
+#primaryRecord = false
+
+# Vendor ID '0xFFFF' indicates no Device ID Service Record is present in the device
+# 0x000F = Broadcom Corporation (default)
+#vendorId = 0x000F
+
+# Vendor ID Source
+# 0x0001 = Bluetooth SIG assigned Device ID Vendor ID value (default)
+# 0x0002 = USB Implementer’s Forum assigned Device ID Vendor ID value
+#vendorIdSource = 0x0001
+
+# Product ID & Product Version
+# Per spec DID v1.3 0xJJMN for version is interpreted as JJ.M.N
+# JJ: major version number, M: minor version number, N: sub-minor version number
+# Default: 0x0000, v00.0.0
+#productId = 0x0000
+#version = 0x0000
+
+# Optional attributes
+#clientExecutableURL =
+#serviceDescription =
+#documentationURL =
+
+#=================================================================================================#
+# Device ID (DID) configuration
+[DID3]
+
+# Primary Record - true or false (default)
+# There can be only one primary record
+#primaryRecord = false
+
+# Vendor ID '0xFFFF' indicates no Device ID Service Record is present in the device
+# 0x000F = Broadcom Corporation (default)
+#vendorId = 0x000F
+
+# Vendor ID Source
+# 0x0001 = Bluetooth SIG assigned Device ID Vendor ID value (default)
+# 0x0002 = USB Implementer’s Forum assigned Device ID Vendor ID value
+#vendorIdSource = 0x0001
+
+# Product ID & Product Version
+# Per spec DID v1.3 0xJJMN for version is interpreted as JJ.M.N
+# JJ: major version number, M: minor version number, N: sub-minor version number
+# Default: 0x0000, v00.0.0
+#productId = 0x0000
+#version = 0x0000
+
+# Optional attributes
+#clientExecutableURL =
+#serviceDescription =
+#documentationURL =
diff --git a/rtkbt/code/bt/conf/bt_stack.conf b/rtkbt/code/bt/conf/bt_stack.conf
new file mode 100755
index 0000000..a26319f
--- /dev/null
+++ b/rtkbt/code/bt/conf/bt_stack.conf
@@ -0,0 +1,85 @@
+# Enable BtSnoop logging function
+# valid value : true, false
+BtSnoopLogOutput=false
+
+# BtSnoop log output file
+BtSnoopFileName=/sdcard/btsnoop_hci.cfa
+
+# Preserve existing BtSnoop log before overwriting
+BtSnoopSaveLog=true
+
+# Enable trace level reconfiguration function
+# Must be present before any TRC_ trace level settings
+TraceConf=true
+
+#begin:modified for BQB
+#BQB Certification
+CertConf=FFFFFFFF
+#end:modified for BQB
+
+# open Heartbeat, RtkbtLogFilter = 1,don't show heartbeat packet in btsnoop
+RtkbtLogFilter=1
+
+# configuration for uart card to save HCI log for slave
+H5LogOutput=0
+
+# Enable Coex log
+BtCoexLogOutput=0
+
+# Trace level configuration
+#   BT_TRACE_LEVEL_NONE    0    ( No trace messages to be generated )
+#   BT_TRACE_LEVEL_ERROR   1    ( Error condition trace messages )
+#   BT_TRACE_LEVEL_WARNING 2    ( Warning condition trace messages )
+#   BT_TRACE_LEVEL_API     3    ( API traces )
+#   BT_TRACE_LEVEL_EVENT   4    ( Debug messages for events )
+#   BT_TRACE_LEVEL_DEBUG   5    ( Full debug messages )
+#   BT_TRACE_LEVEL_VERBOSE 6    ( Verbose messages ) - Currently supported for TRC_BTAPP only.
+TRC_BTM=2
+TRC_HCI=2
+TRC_L2CAP=2
+TRC_RFCOMM=2
+TRC_OBEX=2
+TRC_AVCT=2
+TRC_AVDT=2
+TRC_AVRC=2
+TRC_AVDT_SCB=2
+TRC_AVDT_CCB=2
+TRC_A2D=2
+TRC_SDP=2
+TRC_GATT=2
+TRC_SMP=2
+TRC_BTAPP=2
+TRC_BTIF=2
+TRC_GAP=2
+TRC_BNEP=2
+TRC_PAN=2
+
+# PTS testing helpers
+
+# Secure connections only mode.
+# PTS_SecurePairOnly=true
+
+# Disable LE Connection updates
+#PTS_DisableConnUpdates=true
+
+# Disable BR/EDR discovery after LE pairing to avoid cross key derivation errors
+#PTS_DisableSDPOnLEPair=true
+
+# SMP Pair options (formatted as hex bytes) auth, io, ikey, rkey, ksize
+#PTS_SmpOptions=0xD,0x4,0xf,0xf,0x10
+
+# SMP Certification Failure Cases
+# Fail case number range from 1 to 9 will set up remote device for test
+# case execution. Setting PTS_SmpFailureCase to 0 means normal operation.
+# Failure modes:
+#  1 = SMP_CONFIRM_VALUE_ERR
+#  2 = SMP_PAIR_AUTH_FAIL
+#  3 = SMP_PAIR_FAIL_UNKNOWN
+#  4 = SMP_PAIR_NOT_SUPPORT
+#  5 = SMP_PASSKEY_ENTRY_FAIL
+#  6 = SMP_REPEATED_ATTEMPTS
+#  7 = PIN generation failure?
+#  8 = SMP_PASSKEY_ENTRY_FAIL
+#  9 = SMP_NUMERIC_COMPAR_FAIL;
+#PTS_SmpFailureCase=0
+
diff --git a/rtkbt/code/bt/device/Android.mk b/rtkbt/code/bt/device/Android.mk
new file mode 100755
index 0000000..eafbe0c
--- /dev/null
+++ b/rtkbt/code/bt/device/Android.mk
@@ -0,0 +1,72 @@
+ ##############################################################################
+ #
+ #  Copyright (C) 2014 Google, Inc.
+ #
+ #  Licensed under the Apache License, Version 2.0 (the "License");
+ #  you may not use this file except in compliance with the License.
+ #  You may obtain a copy of the License at:
+ #
+ #  http://www.apache.org/licenses/LICENSE-2.0
+ #
+ #  Unless required by applicable law or agreed to in writing, software
+ #  distributed under the License is distributed on an "AS IS" BASIS,
+ #  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ #  See the License for the specific language governing permissions and
+ #  limitations under the License.
+ #
+ ##############################################################################
+
+LOCAL_PATH := $(call my-dir)
+
+# Bluetooth device static library for target
+# ========================================================
+include $(CLEAR_VARS)
+
+LOCAL_C_INCLUDES := \
+    $(LOCAL_PATH)/.. \
+    $(LOCAL_PATH)/include \
+    $(LOCAL_PATH)/../btcore/include \
+    $(LOCAL_PATH)/../hci/include \
+    $(LOCAL_PATH)/../include \
+    $(LOCAL_PATH)/../stack/include \
+    $(bluetooth_C_INCLUDES)
+
+LOCAL_SRC_FILES := \
+    src/classic/peer.c \
+    src/controller.c \
+    src/interop.c
+
+LOCAL_MODULE := libbtdevice-rtk
+LOCAL_MODULE_TAGS := optional
+LOCAL_SHARED_LIBRARIES := libc liblog
+LOCAL_MODULE_CLASS := STATIC_LIBRARIES
+
+LOCAL_CFLAGS += $(bluetooth_CFLAGS)
+LOCAL_CONLYFLAGS += $(bluetooth_CONLYFLAGS)
+LOCAL_CPPFLAGS += $(bluetooth_CPPFLAGS)
+
+include $(BUILD_STATIC_LIBRARY)
+
+## Bluetooth device unit tests for target
+## ========================================================
+#include $(CLEAR_VARS)
+#
+#LOCAL_C_INCLUDES := \
+#    $(LOCAL_PATH)/.. \
+#    $(bluetooth_C_INCLUDES)
+#
+#LOCAL_SRC_FILES := \
+#    ../osi/test/AllocationTestHarness.cpp \
+#    ./test/interop_test.cpp \
+#    ./test/classic/peer_test.cpp
+#
+#LOCAL_MODULE := net_test_device
+#LOCAL_MODULE_TAGS := tests
+#LOCAL_SHARED_LIBRARIES := liblog libdl
+#LOCAL_STATIC_LIBRARIES := libbtdevice libbtcore libosi libcutils
+#
+#LOCAL_CFLAGS += $(bluetooth_CFLAGS)
+#LOCAL_CONLYFLAGS += $(bluetooth_CONLYFLAGS)
+#LOCAL_CPPFLAGS += $(bluetooth_CPPFLAGS)
+#
+#include $(BUILD_NATIVE_TEST)
diff --git a/rtkbt/code/bt/device/BUILD.gn b/rtkbt/code/bt/device/BUILD.gn
new file mode 100755
index 0000000..bfc42ec
--- /dev/null
+++ b/rtkbt/code/bt/device/BUILD.gn
@@ -0,0 +1,54 @@
+#
+#  Copyright (C) 2015 Google, Inc.
+#
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at:
+#
+#  http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+#
+
+static_library("device") {
+  sources = [
+    "src/classic/peer.c",
+    "src/controller.c",
+    "src/interop.c",
+  ]
+
+  include_dirs = [
+    "//",
+    "//btcore/include",
+    "//hci/include",
+    "//include",
+    "//stack/include",
+  ]
+}
+
+executable("net_test_device") {
+  testonly = true
+  sources = [
+    "//osi/test/AllocationTestHarness.cpp",
+    "test/classic/peer_test.cpp",
+  ]
+
+  include_dirs = [ "//" ]
+
+  deps = [
+    "//device",
+    "//btcore",
+    "//osi",
+    "//third_party/googletest:gtest_main",
+  ]
+
+  libs = [
+    "-lpthread",
+    "-lrt",
+    "-ldl",
+  ]
+}
diff --git a/rtkbt/code/bt/device/include/classic/peer.h b/rtkbt/code/bt/device/include/classic/peer.h
new file mode 100755
index 0000000..069be72
--- /dev/null
+++ b/rtkbt/code/bt/device/include/classic/peer.h
@@ -0,0 +1,34 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+#include "btcore/include/bdaddr.h"
+
+static const char CLASSIC_PEER_MODULE[] = "classic_peer_module";
+
+typedef struct classic_peer_t classic_peer_t;
+
+// Returns a classic_peer_t for the provided |address|. If the peer
+// already exists, that instance is returned. Otherwise a classic_peer_t
+// is constructed for that |address| and then returned. |address| may not
+// be NULL.
+classic_peer_t *classic_peer_by_address(bt_bdaddr_t *address);
+
+// Returns the bluetooth address of the |peer|. |peer| may not be NULL.
+const bt_bdaddr_t *classic_peer_get_address(classic_peer_t *peer);
diff --git a/rtkbt/code/bt/device/include/controller.h b/rtkbt/code/bt/device/include/controller.h
new file mode 100755
index 0000000..291c33d
--- /dev/null
+++ b/rtkbt/code/bt/device/include/controller.h
@@ -0,0 +1,86 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+#include <stdbool.h>
+#include <stdint.h>
+
+#include "bdaddr.h"
+#include "device_features.h"
+#include "hci_layer.h"
+#include "hci_packet_factory.h"
+#include "hci_packet_parser.h"
+
+static const char CONTROLLER_MODULE[] = "controller_module";
+
+typedef struct controller_t {
+  bool (*get_is_ready)(void);
+
+  const bt_bdaddr_t *(*get_address)(void);
+  const bt_version_t *(*get_bt_version)(void);
+
+  const bt_device_features_t *(*get_features_classic)(int index);
+  uint8_t (*get_last_features_classic_index)(void);
+
+  const bt_device_features_t *(*get_features_ble)(void);
+  const uint8_t *(*get_ble_supported_states)(void);
+
+  bool (*supports_simple_pairing)(void);
+  bool (*supports_secure_connections)(void);
+  bool (*supports_simultaneous_le_bredr)(void);
+  bool (*supports_reading_remote_extended_features)(void);
+  bool (*supports_interlaced_inquiry_scan)(void);
+  bool (*supports_rssi_with_inquiry_results)(void);
+  bool (*supports_extended_inquiry_response)(void);
+  bool (*supports_master_slave_role_switch)(void);
+
+  bool (*supports_ble)(void);
+  bool (*supports_ble_packet_extension)(void);
+  bool (*supports_ble_connection_parameters_request)(void);
+  bool (*supports_ble_privacy)(void);
+
+  // Get the cached acl data sizes for the controller.
+  uint16_t (*get_acl_data_size_classic)(void);
+  uint16_t (*get_acl_data_size_ble)(void);
+
+  // Get the cached acl packet sizes for the controller.
+  // This is a convenience function for the respective
+  // acl data size + size of the acl header.
+  uint16_t (*get_acl_packet_size_classic)(void);
+  uint16_t (*get_acl_packet_size_ble)(void);
+
+  uint16_t (*get_ble_default_data_packet_length)(void);
+
+  // Get the number of acl packets the controller can buffer.
+  uint16_t (*get_acl_buffer_count_classic)(void);
+  uint8_t (*get_acl_buffer_count_ble)(void);
+
+  uint8_t (*get_ble_white_list_size)(void);
+
+  uint8_t (*get_ble_resolving_list_max_size)(void);
+  void (*set_ble_resolving_list_max_size)(int resolving_list_max_size);
+  uint8_t *(*get_local_supported_codecs)(uint8_t *number_of_codecs);
+} controller_t;
+
+const controller_t *controller_get_interface();
+
+const controller_t *controller_get_test_interface(
+    const hci_t *hci_interface,
+    const hci_packet_factory_t *packet_factory_interface,
+    const hci_packet_parser_t *packet_parser_interface);
diff --git a/rtkbt/code/bt/device/include/interop.h b/rtkbt/code/bt/device/include/interop.h
new file mode 100755
index 0000000..05778a8
--- /dev/null
+++ b/rtkbt/code/bt/device/include/interop.h
@@ -0,0 +1,91 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2015 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+#include <stdbool.h>
+
+#include "btcore/include/bdaddr.h"
+
+static const char INTEROP_MODULE[] = "interop_module";
+
+// NOTE:
+// Only add values at the end of this enum and do NOT delete values
+// as they may be used in dynamic device configuration.
+typedef enum {
+  // Disable secure connections
+  // This is for pre BT 4.1/2 devices that do not handle secure mode
+  // very well.
+  INTEROP_DISABLE_LE_SECURE_CONNECTIONS = 0,
+
+  // Some devices have proven problematic during the pairing process, often
+  // requiring multiple retries to complete pairing. To avoid degrading the user
+  // experience for those devices, automatically re-try pairing if page
+  // timeouts are received during pairing.
+  INTEROP_AUTO_RETRY_PAIRING,
+
+  // Devices requiring this workaround do not handle Bluetooth Absolute Volume
+  // control correctly, leading to undesirable (potentially harmful) volume levels
+  // or general lack of controlability.
+  INTEROP_DISABLE_ABSOLUTE_VOLUME,
+
+  // Disable automatic pairing with headsets/car-kits
+  // Some car kits do not react kindly to a failed pairing attempt and
+  // do not allow immediate re-pairing. Blacklist these so that the initial
+  // pairing attempt makes it to the user instead.
+  INTEROP_DISABLE_AUTO_PAIRING,
+
+  // Use a fixed pin for specific keyboards
+  // Keyboards should use a variable pin at all times. However, some keyboards
+  // require a fixed pin of all 0000. This workaround enables auto pairing for
+  // those keyboards.
+  INTEROP_KEYBOARD_REQUIRES_FIXED_PIN,
+
+  // Some headsets have audio jitter issues because of increased re-transmissions as the
+  // 3 Mbps packets have a lower link margin, and are more prone to interference. We can
+  // disable 3DH packets (use only 2DH packets) for the ACL link to improve sensitivity
+  // when streaming A2DP audio to the headset. Air sniffer logs show reduced
+  // re-transmissions after switching to 2DH packets.
+  //
+  // Disable 3Mbps packets and use only 2Mbps packets for ACL links when streaming audio.
+  INTEROP_2MBPS_LINK_ONLY
+} interop_feature_t;
+
+// Check if a given |addr| matches a known interoperability workaround as identified
+// by the |interop_feature_t| enum. This API is used for simple address based lookups
+// where more information is not available. No look-ups or random address resolution
+// are performed on |addr|.
+bool interop_match_addr(const interop_feature_t feature, const bt_bdaddr_t *addr);
+
+// Check if a given remote device |name| matches a known interoperability workaround.
+// Name comparisons are case sensitive and do not allow for partial matches. As in, if
+// |name| is "TEST" and a workaround exists for "TESTING", then this function will
+// return false. But, if |name| is "TESTING" and a workaround exists for "TEST", this
+// function will return true.
+// |name| cannot be null and must be null terminated.
+bool interop_match_name(const interop_feature_t feature, const char *name);
+
+// Add a dynamic interop database entry for a device matching the first |length| bytes
+// of |addr|, implementing the workaround identified by |feature|. |addr| may not be
+// null and |length| must be greater than 0 and less than sizeof(bt_bdaddr_t).
+// As |interop_feature_t| is not exposed in the public API, feature must be a valid
+// integer representing an optoin in the enum.
+void interop_database_add(const uint16_t feature, const bt_bdaddr_t *addr, size_t length);
+
+// Clear the dynamic portion of the interoperability workaround database.
+void interop_database_clear(void);
diff --git a/rtkbt/code/bt/device/include/interop_database.h b/rtkbt/code/bt/device/include/interop_database.h
new file mode 100755
index 0000000..49cb8a5
--- /dev/null
+++ b/rtkbt/code/bt/device/include/interop_database.h
@@ -0,0 +1,114 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2015 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+#include "device/include/interop.h"
+
+typedef struct {
+  bt_bdaddr_t addr;
+  size_t length;
+  interop_feature_t feature;
+} interop_addr_entry_t;
+
+static const interop_addr_entry_t interop_addr_database[] = {
+  // Nexus Remote (Spike)
+  // Note: May affect other Asus brand devices
+  {{{0x08, 0x62, 0x66,      0,0,0}}, 3, INTEROP_DISABLE_LE_SECURE_CONNECTIONS},
+  {{{0x38, 0x2c, 0x4a, 0xc9,  0,0}}, 4, INTEROP_DISABLE_LE_SECURE_CONNECTIONS},
+  {{{0x38, 0x2c, 0x4a, 0xe6,  0,0}}, 4, INTEROP_DISABLE_LE_SECURE_CONNECTIONS},
+  {{{0x54, 0xa0, 0x50, 0xd9,  0,0}}, 4, INTEROP_DISABLE_LE_SECURE_CONNECTIONS},
+  {{{0xac, 0x9e, 0x17,      0,0,0}}, 3, INTEROP_DISABLE_LE_SECURE_CONNECTIONS},
+  {{{0xf0, 0x79, 0x59,      0,0,0}}, 3, INTEROP_DISABLE_LE_SECURE_CONNECTIONS},
+
+  // Ausdom M05 - unacceptably loud volume
+  {{{0xa0, 0xe9, 0xdb,      0,0,0}}, 3, INTEROP_DISABLE_ABSOLUTE_VOLUME},
+
+  // BMW car kits (Harman/Becker)
+  {{{0x9c, 0xdf, 0x03,      0,0,0}}, 3, INTEROP_AUTO_RETRY_PAIRING},
+
+  // Flic smart button
+  {{{0x80, 0xe4, 0xda, 0x70,  0,0}}, 4, INTEROP_DISABLE_LE_SECURE_CONNECTIONS},
+
+  // iKross IKBT83B HS - unacceptably loud volume
+  {{{0x00, 0x14, 0x02,      0,0,0}}, 3, INTEROP_DISABLE_ABSOLUTE_VOLUME},
+
+  // Jabra EXTREME 2 - unacceptably loud volume
+  {{{0x1c, 0x48, 0xf9,      0,0,0}}, 3, INTEROP_DISABLE_ABSOLUTE_VOLUME},
+
+  // JayBird BlueBuds X - low granularity on volume control
+  {{{0x44, 0x5e, 0xf3,      0,0,0}}, 3, INTEROP_DISABLE_ABSOLUTE_VOLUME},
+  {{{0xd4, 0x9c, 0x28,      0,0,0}}, 3, INTEROP_DISABLE_ABSOLUTE_VOLUME},
+
+  // JayBird Family
+  {{{0x00, 0x18, 0x91,      0,0,0}}, 3, INTEROP_2MBPS_LINK_ONLY},
+
+  // LG Tone HBS-730 - unacceptably loud volume
+  {{{0x00, 0x18, 0x6b,      0,0,0}}, 3, INTEROP_DISABLE_ABSOLUTE_VOLUME},
+  {{{0xb8, 0xad, 0x3e,      0,0,0}}, 3, INTEROP_DISABLE_ABSOLUTE_VOLUME},
+
+  // LG Tone HV-800 - unacceptably loud volume
+  {{{0xa0, 0xe9, 0xdb,      0,0,0}}, 3, INTEROP_DISABLE_ABSOLUTE_VOLUME},
+
+  // Motorola Key Link
+  {{{0x1c, 0x96, 0x5a,      0,0,0}}, 3, INTEROP_DISABLE_LE_SECURE_CONNECTIONS},
+
+  // Mpow Cheetah - unacceptably loud volume
+  {{{0x00, 0x11, 0xb1,      0,0,0}}, 3, INTEROP_DISABLE_ABSOLUTE_VOLUME},
+
+  // Nissan car kits (ALPS) - auto-pairing fails and rejects next pairing
+  {{{0x34, 0xc7, 0x31,      0,0,0}}, 3, INTEROP_DISABLE_AUTO_PAIRING},
+
+  // SOL REPUBLIC Tracks Air - unable to adjust volume back off from max
+  {{{0xa4, 0x15, 0x66,      0,0,0}}, 3, INTEROP_DISABLE_ABSOLUTE_VOLUME},
+
+  // Subaru car kits (ALPS) - auto-pairing fails and rejects next pairing
+  {{{0x00, 0x07, 0x04,      0,0,0}}, 3, INTEROP_DISABLE_AUTO_PAIRING},
+  {{{0xe0, 0x75, 0x0a,      0,0,0}}, 3, INTEROP_DISABLE_AUTO_PAIRING},
+
+  // Swage Rokitboost HS - unacceptably loud volume
+  {{{0x00, 0x14, 0xf1,      0,0,0}}, 3, INTEROP_DISABLE_ABSOLUTE_VOLUME},
+
+  // VW Car Kit - not enough granularity with volume
+  {{{0x00, 0x26, 0x7e,      0,0,0}}, 3, INTEROP_DISABLE_ABSOLUTE_VOLUME},
+  {{{0x90, 0x03, 0xb7,      0,0,0}}, 3, INTEROP_DISABLE_ABSOLUTE_VOLUME},
+
+  // Unknown keyboard (carried over from auto_pair_devlist.conf)
+  {{{0x00, 0x0F, 0xF6,      0,0,0}}, 3, INTEROP_KEYBOARD_REQUIRES_FIXED_PIN},
+};
+
+typedef struct {
+  char name[20];
+  size_t length;
+  interop_feature_t feature;
+} interop_name_entry_t;
+
+static const interop_name_entry_t interop_name_database[] = {
+  // Carried over from auto_pair_devlist.conf migration
+  {"Audi",    4, INTEROP_DISABLE_AUTO_PAIRING},
+  {"BMW",     3, INTEROP_DISABLE_AUTO_PAIRING},
+  {"Parrot",  6, INTEROP_DISABLE_AUTO_PAIRING},
+  {"Car",     3, INTEROP_DISABLE_AUTO_PAIRING},
+
+  // Nissan Quest rejects pairing after "0000"
+  {"NISSAN",  6, INTEROP_DISABLE_AUTO_PAIRING},
+
+  // Subaru car kits ("CAR M_MEDIA")
+  {"CAR",     3, INTEROP_DISABLE_AUTO_PAIRING},
+};
+
diff --git a/rtkbt/code/bt/device/src/classic/peer.c b/rtkbt/code/bt/device/src/classic/peer.c
new file mode 100755
index 0000000..1bab300
--- /dev/null
+++ b/rtkbt/code/bt/device/src/classic/peer.c
@@ -0,0 +1,121 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_classic_peer"
+
+#include "device/include/classic/peer.h"
+
+#include <assert.h>
+#include <cutils/log.h>
+#include <pthread.h>
+#include <stdbool.h>
+
+#include "btcore/include/module.h"
+#include "osi/include/allocator.h"
+#include "osi/include/future.h"
+#include "osi/include/hash_map.h"
+#include "osi/include/osi.h"
+
+struct classic_peer_t {
+  bt_bdaddr_t address;
+};
+
+static const size_t number_of_address_buckets = 42;
+
+static bool initialized;
+static pthread_mutex_t bag_of_peers_lock;
+static hash_map_t *peers_by_address;
+
+static bool bdaddr_equality_fn(const void *x, const void *y);
+
+// Module lifecycle functions
+
+static future_t *init(void) {
+  peers_by_address = hash_map_new(
+    number_of_address_buckets,
+    hash_function_bdaddr,
+    NULL,
+    osi_free,
+    bdaddr_equality_fn);
+
+  pthread_mutex_init(&bag_of_peers_lock, NULL);
+
+  initialized = true;
+  return NULL;
+}
+
+static future_t *clean_up(void) {
+  initialized = false;
+
+  hash_map_free(peers_by_address);
+  peers_by_address = NULL;
+
+  pthread_mutex_destroy(&bag_of_peers_lock);
+  return NULL;
+}
+
+EXPORT_SYMBOL const module_t classic_peer_module = {
+  .name = CLASSIC_PEER_MODULE,
+  .init = init,
+  .start_up = NULL,
+  .shut_down = NULL,
+  .clean_up = clean_up,
+  .dependencies = {
+    NULL
+  }
+};
+
+// Interface functions
+
+classic_peer_t *classic_peer_by_address(bt_bdaddr_t *address) {
+  assert(initialized);
+  assert(address != NULL);
+
+  classic_peer_t *peer = hash_map_get(peers_by_address, address);
+
+  if (!peer) {
+    pthread_mutex_lock(&bag_of_peers_lock);
+
+    // Make sure it didn't get added in the meantime
+    peer = hash_map_get(peers_by_address, address);
+    if (peer)
+      goto done;
+
+    // Splice in a new peer struct on behalf of the caller.
+    peer = osi_calloc(sizeof(classic_peer_t));
+    peer->address = *address;
+    hash_map_set(peers_by_address, &peer->address, peer);
+
+    pthread_mutex_unlock(&bag_of_peers_lock);
+  }
+
+done:
+  return peer;
+}
+
+const bt_bdaddr_t *classic_peer_get_address(classic_peer_t *peer) {
+  assert(peer != NULL);
+  return &peer->address;
+}
+
+// Internal functions
+
+// Wrapper for bdaddr_equals used in the hash map of peers by address
+static bool bdaddr_equality_fn(const void *x, const void *y) {
+  return bdaddr_equals((bt_bdaddr_t *)x, (bt_bdaddr_t *)y);
+}
diff --git a/rtkbt/code/bt/device/src/controller.c b/rtkbt/code/bt/device/src/controller.c
new file mode 100755
index 0000000..4440ea5
--- /dev/null
+++ b/rtkbt/code/bt/device/src/controller.c
@@ -0,0 +1,513 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_controller"
+
+#include "device/include/controller.h"
+
+#include <assert.h>
+
+#include "bt_types.h"
+#include "btcore/include/event_mask.h"
+#include "btcore/include/module.h"
+#include "btcore/include/version.h"
+#include "hcimsgs.h"
+#include "osi/include/future.h"
+#include "stack/include/btm_ble_api.h"
+
+const bt_event_mask_t BLE_EVENT_MASK = { "\x00\x00\x00\x00\x00\x00\x06\x7f" };
+
+#if (BLE_INCLUDED)
+const bt_event_mask_t CLASSIC_EVENT_MASK = { HCI_DUMO_EVENT_MASK_EXT };
+#else
+const bt_event_mask_t CLASSIC_EVENT_MASK = { HCI_LISBON_EVENT_MASK_EXT };
+#endif
+
+// TODO(zachoverflow): factor out into common module
+const uint8_t SCO_HOST_BUFFER_SIZE = 0xff;
+
+#define HCI_SUPPORTED_COMMANDS_ARRAY_SIZE 64
+#define MAX_FEATURES_CLASSIC_PAGE_COUNT 3
+#define BLE_SUPPORTED_STATES_SIZE         8
+#define BLE_SUPPORTED_FEATURES_SIZE       8
+#define MAX_LOCAL_SUPPORTED_CODECS_SIZE   8
+
+static const hci_t *hci;
+static const hci_packet_factory_t *packet_factory;
+static const hci_packet_parser_t *packet_parser;
+
+static bt_bdaddr_t address;
+static bt_version_t bt_version;
+
+static uint8_t supported_commands[HCI_SUPPORTED_COMMANDS_ARRAY_SIZE];
+static bt_device_features_t features_classic[MAX_FEATURES_CLASSIC_PAGE_COUNT];
+static uint8_t last_features_classic_page_index;
+
+static uint16_t acl_data_size_classic;
+static uint16_t acl_data_size_ble;
+static uint16_t acl_buffer_count_classic;
+static uint8_t acl_buffer_count_ble;
+
+static uint8_t ble_white_list_size;
+static uint8_t ble_resolving_list_max_size;
+static uint8_t ble_supported_states[BLE_SUPPORTED_STATES_SIZE];
+static bt_device_features_t features_ble;
+static uint16_t ble_suggested_default_data_length;
+static uint8_t local_supported_codecs[MAX_LOCAL_SUPPORTED_CODECS_SIZE];
+static uint8_t number_of_local_supported_codecs = 0;
+
+static bool readable;
+static bool ble_supported;
+static bool simple_pairing_supported;
+static bool secure_connections_supported;
+
+#define AWAIT_COMMAND(command) future_await(hci->transmit_command_futured(command))
+
+// Module lifecycle functions
+
+static future_t *start_up(void) {
+  BT_HDR *response;
+
+  // Send the initial reset command
+  response = AWAIT_COMMAND(packet_factory->make_reset());
+  packet_parser->parse_generic_command_complete(response);
+
+  // Request the classic buffer size next
+  response = AWAIT_COMMAND(packet_factory->make_read_buffer_size());
+  packet_parser->parse_read_buffer_size_response(
+      response, &acl_data_size_classic, &acl_buffer_count_classic);
+
+  // Tell the controller about our buffer sizes and buffer counts next
+  // TODO(zachoverflow): factor this out. eww l2cap contamination. And why just a hardcoded 10?
+  response = AWAIT_COMMAND(
+    packet_factory->make_host_buffer_size(
+      L2CAP_MTU_SIZE,
+      SCO_HOST_BUFFER_SIZE,
+      L2CAP_HOST_FC_ACL_BUFS,
+      10
+    )
+  );
+
+  packet_parser->parse_generic_command_complete(response);
+
+  // Read the local version info off the controller next, including
+  // information such as manufacturer and supported HCI version
+  response = AWAIT_COMMAND(packet_factory->make_read_local_version_info());
+  packet_parser->parse_read_local_version_info_response(response, &bt_version);
+
+  // Read the bluetooth address off the controller next
+  response = AWAIT_COMMAND(packet_factory->make_read_bd_addr());
+  packet_parser->parse_read_bd_addr_response(response, &address);
+
+  // Request the controller's supported commands next
+  response = AWAIT_COMMAND(packet_factory->make_read_local_supported_commands());
+  packet_parser->parse_read_local_supported_commands_response(
+    response,
+    supported_commands,
+    HCI_SUPPORTED_COMMANDS_ARRAY_SIZE
+  );
+
+  // Read page 0 of the controller features next
+  uint8_t page_number = 0;
+  response = AWAIT_COMMAND(packet_factory->make_read_local_extended_features(page_number));
+  packet_parser->parse_read_local_extended_features_response(
+    response,
+    &page_number,
+    &last_features_classic_page_index,
+    features_classic,
+    MAX_FEATURES_CLASSIC_PAGE_COUNT
+  );
+
+  assert(page_number == 0);
+  page_number++;
+
+  // Inform the controller what page 0 features we support, based on what
+  // it told us it supports. We need to do this first before we request the
+  // next page, because the controller's response for page 1 may be
+  // dependent on what we configure from page 0
+  simple_pairing_supported = HCI_SIMPLE_PAIRING_SUPPORTED(features_classic[0].as_array);
+  if (simple_pairing_supported) {
+    response = AWAIT_COMMAND(packet_factory->make_write_simple_pairing_mode(HCI_SP_MODE_ENABLED));
+    packet_parser->parse_generic_command_complete(response);
+  }
+
+#if (BLE_INCLUDED == TRUE)
+  if (HCI_LE_SPT_SUPPORTED(features_classic[0].as_array)) {
+    uint8_t simultaneous_le_host = HCI_SIMUL_LE_BREDR_SUPPORTED(features_classic[0].as_array) ? BTM_BLE_SIMULTANEOUS_HOST : 0;
+    response = AWAIT_COMMAND(
+      packet_factory->make_ble_write_host_support(BTM_BLE_HOST_SUPPORT, simultaneous_le_host)
+    );
+
+    packet_parser->parse_generic_command_complete(response);
+
+    // If we modified the BT_HOST_SUPPORT, we will need ext. feat. page 1
+    if (last_features_classic_page_index < 1)
+      last_features_classic_page_index = 1;
+  }
+#endif
+
+  // Done telling the controller about what page 0 features we support
+  // Request the remaining feature pages
+  while (page_number <= last_features_classic_page_index &&
+         page_number < MAX_FEATURES_CLASSIC_PAGE_COUNT) {
+    response = AWAIT_COMMAND(packet_factory->make_read_local_extended_features(page_number));
+    packet_parser->parse_read_local_extended_features_response(
+      response,
+      &page_number,
+      &last_features_classic_page_index,
+      features_classic,
+      MAX_FEATURES_CLASSIC_PAGE_COUNT
+    );
+
+    page_number++;
+  }
+
+#if (SC_MODE_INCLUDED == TRUE)
+  secure_connections_supported = HCI_SC_CTRLR_SUPPORTED(features_classic[2].as_array);
+  if (secure_connections_supported) {
+    response = AWAIT_COMMAND(packet_factory->make_write_secure_connections_host_support(HCI_SC_MODE_ENABLED));
+    packet_parser->parse_generic_command_complete(response);
+  }
+#endif
+
+#if (BLE_INCLUDED == TRUE)
+  ble_supported = last_features_classic_page_index >= 1 && HCI_LE_HOST_SUPPORTED(features_classic[1].as_array);
+  if (ble_supported) {
+    // Request the ble white list size next
+    response = AWAIT_COMMAND(packet_factory->make_ble_read_white_list_size());
+    packet_parser->parse_ble_read_white_list_size_response(response, &ble_white_list_size);
+
+    // Request the ble buffer size next
+    response = AWAIT_COMMAND(packet_factory->make_ble_read_buffer_size());
+    packet_parser->parse_ble_read_buffer_size_response(
+      response,
+      &acl_data_size_ble,
+      &acl_buffer_count_ble
+    );
+
+    // Response of 0 indicates ble has the same buffer size as classic
+    if (acl_data_size_ble == 0)
+      acl_data_size_ble = acl_data_size_classic;
+
+    // Request the ble supported states next
+    response = AWAIT_COMMAND(packet_factory->make_ble_read_supported_states());
+    packet_parser->parse_ble_read_supported_states_response(
+      response,
+      ble_supported_states,
+      sizeof(ble_supported_states)
+    );
+
+    // Request the ble supported features next
+    response = AWAIT_COMMAND(packet_factory->make_ble_read_local_supported_features());
+    packet_parser->parse_ble_read_local_supported_features_response(
+      response,
+      &features_ble
+    );
+
+    if (HCI_LE_ENHANCED_PRIVACY_SUPPORTED(features_ble.as_array)) {
+        response = AWAIT_COMMAND(packet_factory->make_ble_read_resolving_list_size());
+        packet_parser->parse_ble_read_resolving_list_size_response(
+            response,
+            &ble_resolving_list_max_size);
+    }
+
+    if (HCI_LE_DATA_LEN_EXT_SUPPORTED(features_ble.as_array)) {
+        response = AWAIT_COMMAND(packet_factory->make_ble_read_suggested_default_data_length());
+        packet_parser->parse_ble_read_suggested_default_data_length_response(
+            response,
+            &ble_suggested_default_data_length);
+    }
+
+    // Set the ble event mask next
+    response = AWAIT_COMMAND(packet_factory->make_ble_set_event_mask(&BLE_EVENT_MASK));
+    packet_parser->parse_generic_command_complete(response);
+  }
+#endif
+
+  if (simple_pairing_supported) {
+    response = AWAIT_COMMAND(packet_factory->make_set_event_mask(&CLASSIC_EVENT_MASK));
+    packet_parser->parse_generic_command_complete(response);
+  }
+
+  // read local supported codecs
+  if(HCI_READ_LOCAL_CODECS_SUPPORTED(supported_commands)) {
+    response = AWAIT_COMMAND(packet_factory->make_read_local_supported_codecs());
+    packet_parser->parse_read_local_supported_codecs_response(
+        response,
+        &number_of_local_supported_codecs, local_supported_codecs);
+  }
+
+  readable = true;
+  return future_new_immediate(FUTURE_SUCCESS);
+}
+
+static future_t *shut_down(void) {
+  readable = false;
+  return future_new_immediate(FUTURE_SUCCESS);
+}
+
+EXPORT_SYMBOL const module_t controller_module = {
+  .name = CONTROLLER_MODULE,
+  .init = NULL,
+  .start_up = start_up,
+  .shut_down = shut_down,
+  .clean_up = NULL,
+  .dependencies = {
+    HCI_MODULE,
+    NULL
+  }
+};
+
+// Interface functions
+
+static bool get_is_ready(void) {
+  return readable;
+}
+
+static const bt_bdaddr_t *get_address(void) {
+  assert(readable);
+  return &address;
+}
+
+static const bt_version_t *get_bt_version(void) {
+  assert(readable);
+  return &bt_version;
+}
+
+// TODO(zachoverflow): hide inside, move decoder inside too
+static const bt_device_features_t *get_features_classic(int index) {
+  assert(readable);
+  assert(index < MAX_FEATURES_CLASSIC_PAGE_COUNT);
+  return &features_classic[index];
+}
+
+static uint8_t get_last_features_classic_index(void) {
+  assert(readable);
+  return last_features_classic_page_index;
+}
+
+static uint8_t *get_local_supported_codecs(uint8_t *number_of_codecs) {
+  assert(readable);
+  if(number_of_local_supported_codecs) {
+    *number_of_codecs = number_of_local_supported_codecs;
+    return local_supported_codecs;
+  }
+  return NULL;
+}
+
+static const bt_device_features_t *get_features_ble(void) {
+  assert(readable);
+  assert(ble_supported);
+  return &features_ble;
+}
+
+static const uint8_t *get_ble_supported_states(void) {
+  assert(readable);
+  assert(ble_supported);
+  return ble_supported_states;
+}
+
+static bool supports_simple_pairing(void) {
+  assert(readable);
+  return simple_pairing_supported;
+}
+
+static bool supports_secure_connections(void) {
+  assert(readable);
+  return secure_connections_supported;
+}
+
+static bool supports_simultaneous_le_bredr(void) {
+  assert(readable);
+  return HCI_SIMUL_LE_BREDR_SUPPORTED(features_classic[0].as_array);
+}
+
+static bool supports_reading_remote_extended_features(void) {
+  assert(readable);
+  return HCI_READ_REMOTE_EXT_FEATURES_SUPPORTED(supported_commands);
+}
+
+static bool supports_interlaced_inquiry_scan(void) {
+  assert(readable);
+  return HCI_LMP_INTERLACED_INQ_SCAN_SUPPORTED(features_classic[0].as_array);
+}
+
+static bool supports_rssi_with_inquiry_results(void) {
+  assert(readable);
+  return HCI_LMP_INQ_RSSI_SUPPORTED(features_classic[0].as_array);
+}
+
+static bool supports_extended_inquiry_response(void) {
+  assert(readable);
+  return HCI_EXT_INQ_RSP_SUPPORTED(features_classic[0].as_array);
+}
+
+static bool supports_master_slave_role_switch(void) {
+  assert(readable);
+  return HCI_SWITCH_SUPPORTED(features_classic[0].as_array);
+}
+
+static bool supports_ble(void) {
+  assert(readable);
+  return ble_supported;
+}
+
+static bool supports_ble_privacy(void) {
+  assert(readable);
+  assert(ble_supported);
+  return HCI_LE_ENHANCED_PRIVACY_SUPPORTED(features_ble.as_array);
+}
+
+static bool supports_ble_packet_extension(void) {
+  assert(readable);
+  assert(ble_supported);
+  return HCI_LE_DATA_LEN_EXT_SUPPORTED(features_ble.as_array);
+}
+
+static bool supports_ble_connection_parameters_request(void) {
+  assert(readable);
+  assert(ble_supported);
+  return HCI_LE_CONN_PARAM_REQ_SUPPORTED(features_ble.as_array);
+}
+
+static uint16_t get_acl_data_size_classic(void) {
+  assert(readable);
+  return acl_data_size_classic;
+}
+
+static uint16_t get_acl_data_size_ble(void) {
+  assert(readable);
+  assert(ble_supported);
+  return acl_data_size_ble;
+}
+
+static uint16_t get_acl_packet_size_classic(void) {
+  assert(readable);
+  return acl_data_size_classic + HCI_DATA_PREAMBLE_SIZE;
+}
+
+static uint16_t get_acl_packet_size_ble(void) {
+  assert(readable);
+  return acl_data_size_ble + HCI_DATA_PREAMBLE_SIZE;
+}
+
+static uint16_t get_ble_suggested_default_data_length(void) {
+  assert(readable);
+  assert(ble_supported);
+  return ble_suggested_default_data_length;
+}
+
+static uint16_t get_acl_buffer_count_classic(void) {
+  assert(readable);
+  return acl_buffer_count_classic;
+}
+
+static uint8_t get_acl_buffer_count_ble(void) {
+  assert(readable);
+  assert(ble_supported);
+  return acl_buffer_count_ble;
+}
+
+static uint8_t get_ble_white_list_size(void) {
+  assert(readable);
+  assert(ble_supported);
+  return ble_white_list_size;
+}
+
+static uint8_t get_ble_resolving_list_max_size(void) {
+  assert(readable);
+  assert(ble_supported);
+  return ble_resolving_list_max_size;
+}
+
+static void set_ble_resolving_list_max_size(int resolving_list_max_size) {
+  // Setting "resolving_list_max_size" to 0 is done during cleanup,
+  // hence we ignore the "readable" flag already set to false during shutdown.
+  if (resolving_list_max_size != 0) {
+    assert(readable);
+  }
+  assert(ble_supported);
+  ble_resolving_list_max_size = resolving_list_max_size;
+}
+
+static const controller_t interface = {
+  get_is_ready,
+
+  get_address,
+  get_bt_version,
+
+  get_features_classic,
+  get_last_features_classic_index,
+
+  get_features_ble,
+  get_ble_supported_states,
+
+  supports_simple_pairing,
+  supports_secure_connections,
+  supports_simultaneous_le_bredr,
+  supports_reading_remote_extended_features,
+  supports_interlaced_inquiry_scan,
+  supports_rssi_with_inquiry_results,
+  supports_extended_inquiry_response,
+  supports_master_slave_role_switch,
+
+  supports_ble,
+  supports_ble_packet_extension,
+  supports_ble_connection_parameters_request,
+  supports_ble_privacy,
+
+  get_acl_data_size_classic,
+  get_acl_data_size_ble,
+
+  get_acl_packet_size_classic,
+  get_acl_packet_size_ble,
+  get_ble_suggested_default_data_length,
+
+  get_acl_buffer_count_classic,
+  get_acl_buffer_count_ble,
+
+  get_ble_white_list_size,
+
+  get_ble_resolving_list_max_size,
+  set_ble_resolving_list_max_size,
+  get_local_supported_codecs
+};
+
+const controller_t *controller_get_interface() {
+  static bool loaded = false;
+  if (!loaded) {
+    loaded = true;
+
+    hci = hci_layer_get_interface();
+    packet_factory = hci_packet_factory_get_interface();
+    packet_parser = hci_packet_parser_get_interface();
+  }
+
+  return &interface;
+}
+
+const controller_t *controller_get_test_interface(
+    const hci_t *hci_interface,
+    const hci_packet_factory_t *packet_factory_interface,
+    const hci_packet_parser_t *packet_parser_interface) {
+
+  hci = hci_interface;
+  packet_factory = packet_factory_interface;
+  packet_parser = packet_parser_interface;
+  return &interface;
+}
diff --git a/rtkbt/code/bt/device/src/interop.c b/rtkbt/code/bt/device/src/interop.c
new file mode 100755
index 0000000..50020f7
--- /dev/null
+++ b/rtkbt/code/bt/device/src/interop.c
@@ -0,0 +1,163 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2015 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_device_interop"
+
+#include <assert.h>
+#include <string.h> // For memcmp
+
+#include "btcore/include/module.h"
+#include "device/include/interop.h"
+#include "device/include/interop_database.h"
+#include "osi/include/allocator.h"
+#include "osi/include/list.h"
+#include "osi/include/log.h"
+
+#define CASE_RETURN_STR(const) case const: return #const;
+
+static list_t *interop_list = NULL;
+
+static const char* interop_feature_string_(const interop_feature_t feature);
+static void interop_free_entry_(void *data);
+static void interop_lazy_init_(void);
+static bool interop_match_fixed_(const interop_feature_t feature, const bt_bdaddr_t *addr);
+static bool interop_match_dynamic_(const interop_feature_t feature, const bt_bdaddr_t *addr);
+
+// Interface functions
+
+bool interop_match_addr(const interop_feature_t feature, const bt_bdaddr_t *addr) {
+  assert(addr);
+
+  if (interop_match_fixed_(feature, addr) || interop_match_dynamic_(feature, addr)) {
+    char bdstr[20] = {0};
+    LOG_WARN(LOG_TAG, "%s() Device %s is a match for interop workaround %s.",
+          __func__, bdaddr_to_string(addr, bdstr, sizeof(bdstr)),
+                        interop_feature_string_(feature));
+    return true;
+  }
+
+  return false;
+}
+
+bool interop_match_name(const interop_feature_t feature, const char *name) {
+  assert(name);
+
+  const size_t db_size = sizeof(interop_name_database) / sizeof(interop_name_entry_t);
+  for (size_t i = 0; i != db_size; ++i) {
+    if (feature == interop_name_database[i].feature &&
+        strlen(name) >= interop_name_database[i].length &&
+        strncmp(name, interop_name_database[i].name, interop_name_database[i].length) == 0) {
+      return true;
+    }
+  }
+
+  return false;
+}
+
+void interop_database_add(const uint16_t feature, const bt_bdaddr_t *addr, size_t length) {
+  assert(addr);
+  assert(length > 0);
+  assert(length < sizeof(bt_bdaddr_t));
+
+  interop_addr_entry_t *entry = osi_calloc(sizeof(interop_addr_entry_t));
+  memcpy(&entry->addr, addr, length);
+  entry->feature = feature;
+  entry->length = length;
+
+  interop_lazy_init_();
+  list_append(interop_list, entry);
+}
+
+void interop_database_clear() {
+  if (interop_list)
+    list_clear(interop_list);
+}
+
+// Module life-cycle functions
+
+static future_t *interop_clean_up(void) {
+  list_free(interop_list);
+  interop_list = NULL;
+  return future_new_immediate(FUTURE_SUCCESS);
+}
+
+EXPORT_SYMBOL module_t interop_module = {
+  .name = INTEROP_MODULE,
+  .init = NULL,
+  .start_up = NULL,
+  .shut_down = NULL,
+  .clean_up = interop_clean_up,
+  .dependencies = {NULL},
+};
+
+// Local functions
+
+static const char* interop_feature_string_(const interop_feature_t feature) {
+  switch (feature) {
+    CASE_RETURN_STR(INTEROP_DISABLE_LE_SECURE_CONNECTIONS)
+    CASE_RETURN_STR(INTEROP_AUTO_RETRY_PAIRING)
+    CASE_RETURN_STR(INTEROP_DISABLE_ABSOLUTE_VOLUME)
+    CASE_RETURN_STR(INTEROP_DISABLE_AUTO_PAIRING)
+    CASE_RETURN_STR(INTEROP_KEYBOARD_REQUIRES_FIXED_PIN)
+    CASE_RETURN_STR(INTEROP_2MBPS_LINK_ONLY)
+  }
+
+  return "UNKNOWN";
+}
+
+static void interop_free_entry_(void *data) {
+  interop_addr_entry_t *entry = (interop_addr_entry_t *)data;
+  osi_free(entry);
+}
+
+static void interop_lazy_init_(void) {
+  if (interop_list == NULL) {
+    interop_list = list_new(interop_free_entry_);
+  }
+}
+
+static bool interop_match_dynamic_(const interop_feature_t feature, const bt_bdaddr_t *addr) {
+  if (interop_list == NULL || list_length(interop_list) == 0)
+    return false;
+
+  const list_node_t *node = list_begin(interop_list);
+  while (node != list_end(interop_list)) {
+    interop_addr_entry_t *entry = list_node(node);
+    assert(entry);
+
+    if (feature == entry->feature && memcmp(addr, &entry->addr, entry->length) == 0)
+      return true;
+
+    node = list_next(node);
+  }
+  return false;
+}
+
+static bool interop_match_fixed_(const interop_feature_t feature, const bt_bdaddr_t *addr) {
+  assert(addr);
+
+  const size_t db_size = sizeof(interop_addr_database) / sizeof(interop_addr_entry_t);
+  for (size_t i = 0; i != db_size; ++i) {
+    if (feature == interop_addr_database[i].feature &&
+        memcmp(addr, &interop_addr_database[i].addr, interop_addr_database[i].length) == 0) {
+      return true;
+    }
+  }
+
+  return false;
+}
diff --git a/rtkbt/code/bt/device/test/classic/peer_test.cpp b/rtkbt/code/bt/device/test/classic/peer_test.cpp
new file mode 100755
index 0000000..9f8b9ac
--- /dev/null
+++ b/rtkbt/code/bt/device/test/classic/peer_test.cpp
@@ -0,0 +1,86 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#include <gtest/gtest.h>
+
+#include "osi/test/AllocationTestHarness.h"
+
+extern "C" {
+#include "btcore/include/bdaddr.h"
+#include "btcore/include/module.h"
+#include "device/include/classic/peer.h"
+
+extern const module_t classic_peer_module;
+}
+
+class ClassicPeerTest : public AllocationTestHarness {
+  protected:
+    virtual void SetUp() {
+      AllocationTestHarness::SetUp();
+
+      module_management_start();
+      module_init(&classic_peer_module);
+    }
+
+    virtual void TearDown() {
+      module_clean_up(&classic_peer_module);
+      module_management_stop();
+
+      AllocationTestHarness::TearDown();
+    }
+};
+
+TEST_F(ClassicPeerTest, test_basic_get) {
+  bt_bdaddr_t test_address;
+  string_to_bdaddr("12:34:56:78:9A:BC", &test_address);
+
+  classic_peer_t *peer = classic_peer_by_address(&test_address);
+
+  EXPECT_TRUE(peer != NULL);
+  // The stored address should be a copy (different memory address)
+  EXPECT_NE(&test_address, classic_peer_get_address(peer));
+  EXPECT_TRUE(bdaddr_equals(&test_address, classic_peer_get_address(peer)));
+}
+
+TEST_F(ClassicPeerTest, test_multi_get_are_same) {
+  bt_bdaddr_t test_address;
+  string_to_bdaddr("12:34:56:78:9A:BC", &test_address);
+
+  classic_peer_t *peer = classic_peer_by_address(&test_address);
+  classic_peer_t *peer_again = classic_peer_by_address(&test_address);
+
+  EXPECT_TRUE(peer != NULL);
+  EXPECT_TRUE(peer_again != NULL);
+  EXPECT_EQ(peer, peer_again);
+}
+
+TEST_F(ClassicPeerTest, test_multi_get_different) {
+  bt_bdaddr_t test_address0;
+  bt_bdaddr_t test_address1;
+  string_to_bdaddr("12:34:56:78:9A:BC", &test_address0);
+  string_to_bdaddr("42:42:42:42:42:42", &test_address1);
+
+  classic_peer_t *peer0 = classic_peer_by_address(&test_address0);
+  classic_peer_t *peer1 = classic_peer_by_address(&test_address1);
+
+  EXPECT_TRUE(peer0 != NULL);
+  EXPECT_TRUE(peer1 != NULL);
+  EXPECT_TRUE(bdaddr_equals(&test_address0, classic_peer_get_address(peer0)));
+  EXPECT_TRUE(bdaddr_equals(&test_address1, classic_peer_get_address(peer1)));
+}
+
diff --git a/rtkbt/code/bt/device/test/interop_test.cpp b/rtkbt/code/bt/device/test/interop_test.cpp
new file mode 100755
index 0000000..ef4f1c5
--- /dev/null
+++ b/rtkbt/code/bt/device/test/interop_test.cpp
@@ -0,0 +1,77 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2015 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#include <gtest/gtest.h>
+
+extern "C" {
+#include "device/include/interop.h"
+}
+
+TEST(InteropTest, test_lookup_hit) {
+  bt_bdaddr_t test_address;
+  string_to_bdaddr("38:2c:4a:e6:67:89", &test_address);
+  EXPECT_TRUE(interop_match_addr(INTEROP_DISABLE_LE_SECURE_CONNECTIONS, &test_address));
+  string_to_bdaddr("9c:df:03:12:34:56", &test_address);
+  EXPECT_TRUE(interop_match_addr(INTEROP_AUTO_RETRY_PAIRING, &test_address));
+}
+
+TEST(InteropTest, test_lookup_miss) {
+  bt_bdaddr_t test_address;
+  string_to_bdaddr("00:00:00:00:00:00", &test_address);
+  EXPECT_FALSE(interop_match_addr(INTEROP_DISABLE_LE_SECURE_CONNECTIONS, &test_address));
+  string_to_bdaddr("ff:ff:ff:ff:ff:ff", &test_address);
+  EXPECT_FALSE(interop_match_addr(INTEROP_AUTO_RETRY_PAIRING, &test_address));
+  string_to_bdaddr("42:08:15:ae:ae:ae", &test_address);
+  EXPECT_FALSE(interop_match_addr(INTEROP_DISABLE_LE_SECURE_CONNECTIONS, &test_address));
+  string_to_bdaddr("38:2c:4a:59:67:89", &test_address);
+  EXPECT_FALSE(interop_match_addr(INTEROP_AUTO_RETRY_PAIRING, &test_address));
+}
+
+TEST(InteropTest, test_dynamic) {
+  bt_bdaddr_t test_address;
+
+  string_to_bdaddr("11:22:33:44:55:66", &test_address);
+  EXPECT_FALSE(interop_match_addr(INTEROP_DISABLE_LE_SECURE_CONNECTIONS, &test_address));
+
+  interop_database_add(INTEROP_DISABLE_LE_SECURE_CONNECTIONS, &test_address, 3);
+  EXPECT_TRUE(interop_match_addr(INTEROP_DISABLE_LE_SECURE_CONNECTIONS, &test_address));
+  EXPECT_FALSE(interop_match_addr(INTEROP_AUTO_RETRY_PAIRING, &test_address));
+
+  string_to_bdaddr("66:55:44:33:22:11", &test_address);
+  EXPECT_FALSE(interop_match_addr(INTEROP_AUTO_RETRY_PAIRING, &test_address));
+
+  interop_database_add(INTEROP_AUTO_RETRY_PAIRING, &test_address, 3);
+  EXPECT_TRUE(interop_match_addr(INTEROP_AUTO_RETRY_PAIRING, &test_address));
+  EXPECT_FALSE(interop_match_addr(INTEROP_DISABLE_LE_SECURE_CONNECTIONS, &test_address));
+
+  interop_database_clear();
+  EXPECT_FALSE(interop_match_addr(INTEROP_AUTO_RETRY_PAIRING, &test_address));
+}
+
+TEST(InteropTest, test_name_hit) {
+  EXPECT_TRUE(interop_match_name(INTEROP_DISABLE_AUTO_PAIRING, "BMW M3"));
+  EXPECT_TRUE(interop_match_name(INTEROP_DISABLE_AUTO_PAIRING, "Audi"));
+  EXPECT_TRUE(interop_match_name(INTEROP_DISABLE_AUTO_PAIRING, "Caramel")); // Starts with "Car" ;)
+}
+
+TEST(InteropTest, test_name_miss) {
+  EXPECT_FALSE(interop_match_name(INTEROP_DISABLE_AUTO_PAIRING, "__GOOGLE__"));
+  EXPECT_FALSE(interop_match_name(INTEROP_DISABLE_AUTO_PAIRING, "BM"));
+  EXPECT_FALSE(interop_match_name(INTEROP_DISABLE_AUTO_PAIRING, "audi"));
+  EXPECT_FALSE(interop_match_name(INTEROP_AUTO_RETRY_PAIRING, "BMW M3"));
+}
diff --git a/rtkbt/code/bt/doc/btsnoop_net.md b/rtkbt/code/bt/doc/btsnoop_net.md
new file mode 100755
index 0000000..2500908
--- /dev/null
+++ b/rtkbt/code/bt/doc/btsnoop_net.md
@@ -0,0 +1,15 @@
+btsnoop_net
+====
+btsnoop_net exposes Bluetooth snoop logs over a local TCP socket which enables
+real-time debugging of HCI data with hcidump.
+
+This feature is enabled by  setting `BtSnoopLogOutput=true` in `bt_stack.conf`.
+Once it has been enabled and the stack restarted, the stack will listen for
+incoming TCP connections on port 8872.
+
+To use this feature with hcidump on a Linux host, you can run:
+
+```
+  $ adb forward tcp:8872 tcp:8872
+  $ nc localhost 8872 | hcidump -r /dev/stdin
+```
diff --git a/rtkbt/code/bt/doc/directory_layout.md b/rtkbt/code/bt/doc/directory_layout.md
new file mode 100755
index 0000000..80b17c8
--- /dev/null
+++ b/rtkbt/code/bt/doc/directory_layout.md
@@ -0,0 +1,29 @@
+## Directory Layout
+
+### General directory layout
+Each directory should be a self contained subsystem consisting
+of one or more modules.
+
+* src/ - All source files for the subsystem.
+* include/ - All include files for the subsystem.
+* test/ - All unit tests for the subsystem.
+
+### Top level directory layout
+* audio_a2dp_hw - A2DP audio HAL implementation.
+* bta - *Bluetooth Application* - Strange collection of a-lot of things **Deprecate?**
+* btcore - *Bluetooth Core* - Bluetooth data type definitions and operations on those data types.
+* btif - *Bluetooth Interface* - JNI interface to Android.
+* conf - *Configuration* - Various configuration text files.
+* doc - *Documentation* - Stack documentation.
+* embdrv - **Deprecated** - Bluetooth SBC Codec.
+* hci - *Host Controller Interface* - Communication protocol with Bluetooth chip.
+* include - **Deprecated** - System global include files.
+* main - *Main stack entrypoint* - Provides HAL for stack access.
+* osi - *Operating System Interface* - General resource support for stack.
+* profiles - *Bluetooth Profiles* - **TBD** Collection of all profiles.
+* stack - **Deprecated** - The Stack - Push to proper spot in *./profiles*
+* test - *Test suite* - Stack level validiation and stress test suite.
+* tools - *Tools* - Various engineering support tools.
+* udrv -  **Deprecated**  *UIPC implementation*
+* utils - **Deprecated** *Bluetooth utilities* - Eliminate.
+* vnd - *Vendor* - Vendor specific APIs - *to be integrated into rest of stack ?*.
diff --git a/rtkbt/code/bt/doc/log_tags.md b/rtkbt/code/bt/doc/log_tags.md
new file mode 100755
index 0000000..f460fd0
--- /dev/null
+++ b/rtkbt/code/bt/doc/log_tags.md
@@ -0,0 +1,59 @@
+Log Tags
+===
+This document lists all of the log tags used by the Bluetooth stack.
+
+* audio_a2dp_hw
+* BTA_AG_CO:
+* bta_sys_main
+* bt_btif
+* bt_btif_config
+* bt_btif_config_transcode
+* bt_classic_peer
+* bte_conf
+* BtGatt.btif
+* BtGatt.btif_test
+* bt_hci
+* bt_hci_h4
+* bt_hci_inject
+* bt_hci_mct
+* bt_hci_packet_fragmenter
+* BTIF_AV
+* BTIF_CORE
+* BTIF_HF
+* BTIF_HF_CLIENT
+* BTIF_HH
+* BTIF_HL
+* BTIF-MEDIA
+* BTIF_PAN
+* BTIF_QUEUE
+* BTIF_RC
+* BTIF_SM
+* btif_sock
+* BTIF_SOCK
+* btif_sock_rfcomm
+* btif_sock_sco
+* BTIF_SOCK_SDP
+* BTIF_STORAGE
+* BTIF_UTIL
+* BTLD
+* bt_low_power_manager
+* bt_module
+* bt_osi_alarm
+* bt_osi_config
+* bt_osi_data_dispatcher
+* bt_osi_reactor
+* bt_osi_socket
+* bt_profile_manager
+* bt_sdp_client
+* btsnoop
+* btsnoop_net
+* bt_stack_config
+* bt_stack_manager
+* bt_task
+* btu_task
+* BT_UTILS
+* bt_vendor
+* osi_eager_reader
+* osi_future
+* osi_semaphore
+* osi_thread
diff --git a/rtkbt/code/bt/doc/network_ports.md b/rtkbt/code/bt/doc/network_ports.md
new file mode 100755
index 0000000..5244a14
--- /dev/null
+++ b/rtkbt/code/bt/doc/network_ports.md
@@ -0,0 +1,8 @@
+Network Ports
+===
+This document lists all of the network ports used by the bluetooth stack.
+It should be used as a reference and as a mechanism to avoid port
+namespace conflicts.
+
+* TCP 8872 (hci/src/btsnoop_net.c) - read live btsnoop logs
+* TCP 8873 (hci/src/hci_inject.c) - inject HCI packets into HCI stream
diff --git a/rtkbt/code/bt/doc/power_management.md b/rtkbt/code/bt/doc/power_management.md
new file mode 100755
index 0000000..b40f854
--- /dev/null
+++ b/rtkbt/code/bt/doc/power_management.md
@@ -0,0 +1,202 @@
+## Power Management
+
+### Overview
+
+Power management (PM) is an event-driven state machine, tickled by various
+`bta/sys` events via a callback. The actual state switching calls are handled
+by the BTM HCI interfacing code, with results being posted back to the PM
+code via the BTA workqueue thread.
+
+Power states are managed per-device, per-profile, so every incoming event
+includes a profile ID, app ID, and a `BD_ADDR`.
+
+The events fired to drive the state machine at the time of this writing are:
+
+  - `BTA_SYS_CONN_OPEN`
+  - `BTA_SYS_CONN_CLOSE`
+  - `BTA_SYS_CONN_IDLE`
+  - `BTA_SYS_CONN_BUSY`
+  - `BTA_SYS_APP_OPEN`
+  - `BTA_SYS_APP_CLOSE`
+  - `BTA_SYS_SCO_OPEN`
+  - `BTA_SYS_SCO_CLOSE`
+
+Each of these correspond to a function name in `bta/sys/bta_sys_conn.c`, which
+are called by each profile definition in `bta/$PROFILE`.
+
+The PM code makes calls into the BTM module to set various power
+states. Responses are handled in an asynchronous fashion, primarily via the
+callbacks `bta_dm_pm_cback` and `bta_dm_pm_timer_cback`. Responses are handled
+through the BTA workqueue thread and the `bta_dm_pm_btm_status` function. Since
+we might possibly get into a bad state where we never hear back from the
+controller, timers are used to post messages to the BTA workqueue thread as
+well, which filters down through the same status function.
+
+Overall power states are managed *per device*, not per connection, but the power
+policy is determined by the greatest allowable power action defined across all
+currently known connections to a given device. Thus, if RFCOMM specifies that
+it's willing to go to into SNIFF and specifies that as an action, and say, a PAN
+connection is up which specifies it is willing to go into SNIFF, but its action
+states it wants ACTIVE, the power management code will change to ACTIVE.
+
+### Power management tables
+
+The tables that determine which power levels are acceptable for which profiles
+and what actions to take for the above events are defined in the
+`bta/dm/bta_dm_cfg.c` file, as `bta_dm_pm_cfg`, `bta_dm_pm_spec`, and
+`bta_dm_ssr_spec`.
+
+During a lookup attempt, the code iterates over the `bta_dm_pm_cfg` array,
+looking for a match between the profile and app IDs. When it finds one, it uses
+the `spec_idx` field to index into `bta_dm_pm_spec` array to determine which
+power modes are acceptable and what actions to take for each event.
+
+The action constants are defined in `bta_api.h` and are defined as a series of
+hex bitfields. The actual actions taken are determined by the
+`bta_dm_pm_set_mode` function, but a few of the actions listed deserve some
+additional description:
+
+  - `BTA_DM_PM_NO_ACTION` is effectively a no-op and has a value of zero, so any
+    other profile will override this.
+  - `BTA_DM_PM_NO_PREF` overrides `BTA_DM_PM_NO_ACTION` and if selected as the
+    action that `bta_dm_pm_set_mode` will take, the connection will be removed
+    from `bta_dm_conn_srvcs` and no longer be considered for power management
+    decisions.
+  - `BTA_DM_PM_SNIFF` through `BTA_DM_PM_SNIFF4` are special, in that each
+    level specifies a set of parameters for the SNIFF mode which relate to the
+    min and max intervals, the number of attempts and the timeout. The overall
+    action is still the same, however -- SNIFF mode is attempted. There are
+    definitions available up to SNIFF7, but actual SSR values are only defined
+    up to SNIFF4. Params are defined in `bta_dm_ssr_spec`.
+  - `BTA_DM_PM_ACTIVE` is full-on power.
+  - `BTA_DM_PM_RETRY` has the same effect as `BTA_DM_PM_NO_ACTION`, except a
+    timeout is possible to be set, which effectively allows a power operation to
+    be "retried".
+
+### Initialization
+
+`bta_dm_pm.c`'s `bta_dm_init_pm` function calls out to register
+`bta_dm_pm_cback` with the bta sys module for incoming power management events,
+and also registers `bta_dm_pm_btm_cback` with the btm module to handle responses
+and timeouts of HCI requests (via `bta_dm_pm_btm_status`).
+
+At this point, the power managment code is basically done until the first set of
+events come in through `bta_dm_pm_cback`.
+
+Throughout the `bta_dm_pm.c` file, connections whose power management states are
+managed are tracked in a global array called `bta_dm_conn_srvcs`. Unfortunately,
+while this variable is declared as an extern in the `bta_dm_int.h` file, it only
+seems to be used in the `bta_dm_act.c` file, and only for reinitialization.
+
+### Event flow
+
+#### Events fired from SYS
+
+  1. An event is fired from one of the methods mentioned above in
+     `bta/sys/bta_sys_conn.c`
+  2. The `bta_dm_pm_cback` function is called.
+     - The power mode config is looked up in the `bta_dm_pm_cfg` table. If none
+       are found for the given profile ID and app ID, the function simply
+       returns with no action taken.
+     - If any timers were set for the given `BD_ADDR`, they are stopped.
+     - The SSR params for the CONN_OPEN event are looked up.
+     - The power spec state table (`bta_dm_pm_spec`) is checked to see if
+       there's no action to be performed (`BTA_DM_PM_NO_ACTION`), and if so,
+       returns with no action taken.
+     - `bta_dm_conn_srvcs` is consulted to ensure there's an entry for this
+       connection if it's supposed to be managed according to the power spec
+       state tables. If the spec specifies `BTA_DM_PM_NO_PREF`, then any
+       existing entry in this list is removed, otherwise one is added/updated
+       with the state given to the function.
+  3. `bta_dm_pm_cback` checks to see if the `bta_dm_ssr_spec` specifies SSR
+     adjustments are to be made, and if so, `bta_dm_pm_ssr` is called with the
+     peer `BD_ADDR`.
+     - `bta_dm_pm_ssr` iterates the managed services array to find all connected
+       services for the given `BD_ADDR`, then looks up the ssr values from the
+       `bta_dm_ssr_spec` tables, looking for the smallest max latency to use.
+     - `bta_dm_pm_ssr` calls `BTM_SetSsrParams` to actually send along the SSR
+       params to the bluetooth chip.
+  4. `bta_dm_pm_cback` calls `bta_dm_pm_set_mode` with the peer address and the
+     `timed_out` parameter set to `false`.
+     - For each managed connection, `bta_dm_pm_set_mode` grabs
+       both actions specified for the profile in the `bta_dm_pm_spec` tables. If
+       the first power management action didn't timeout (or was never attempted,
+       according to the `tBTA_DM_PEER_DEVICE` `pm_mode_failed` and
+       `pm_mode_attempted` fields), its timeout and mode are used. Otherwise,
+       the same check is done against the second action and it is used
+       instead. If both actions have been attempted, then the action is set to
+       `BTA_DM_PM_NO_ACTION`. Only the highest power mode action is chosen from
+       all connected profiles.
+     - If the chosen action is `BTA_DM_PM_PARK` or `BTA_DM_PM_SNIFF` but the
+       profile doesn't allow it, this function takes no action.
+     - If a timeout is specified in the power spec table, then an unused timer
+       in `bta_dm_cb.pm_timer` is started.
+     - If the action chosen is `BTA_DM_PM_PARK`, `bta_dm_pm_park` is called,
+       which calls `BTM_ReadPowerMode` and `BTM_SetPowerMode` to make an HCI
+       request to enable PARK for the given peer and connection.
+     - If the action chosen is `BTA_DM_PM_SNIFF`, the peer device's link policy
+       is checked to see if it's allowed. If so, then `bta_dm_pm_sniff` is
+       called, which makes various calls to `BTM_ReadLocalFeatures`,
+       `BTM_ReadRemoteFeatures` and `BTM_SetPowerMode` to ensure SNIFF mode is
+       enabled.
+     - If the action chosen is `BTA_DM_PM_ACTIVE`, a call to `bta_dm_pm_active`
+       is made, which calls `BTM_SetPowerMode` to set the link into ACTIVE
+       mode.
+
+At this point, if one of the timers in `bta_dm_cb.pm_timer` times out, a call is
+made through the BTA workqueue thread to `bta_dm_pm_btm_cback`, which then
+triggers `bta_dm_pm_btm_status`, with the timeout field set to TRUE. HCI
+responses are also fired as messages through the BTA workqueue thread, which are
+handled again, through `bta_dm_pm_btm_status`.
+
+#### Events fired through BTM
+
+Essentially these messages eventually go through the same functions as events
+fired from the SYS side of things, except from the initial path they take:
+
+  1. An event is fired from a callback in BTM to `bta_dm_pm_btm_cback`.
+  2. `bta_dm_pm_btm_cback` packages up the given parameters into a
+     `tBTA_DM_PM_BTM_STATUS` struct and posts it to the BTA workqueue thread via
+     `bta_sys_sendmsg`, with the event header set to
+     `BTA_DM_PM_BTM_STATUS_EVT`.
+  3. This is eventually routed to the `bta_dm_pm_btm_status` function.
+     **Determine if this is running on the workqueue thread or not**
+     - The message `status` passed in is actually the current status of the
+       device.
+     - If the status is `BTM_PM_STS_ACTIVE` (still in the ACTIVE power mode),
+       checks the HCI status code:
+       - If that's non-zero and a PARK or SNIFF mode change was attempted,
+         `bta_dm_pm_btm_status` stops any timers started for the device in
+         `bta_dm_pm_set_mode`, clears some status bits in the peer device
+         structure, and then calls back into `bta_dm_pm_set_mode` with the peer
+         device address and timeout set to FALSE.
+       - If the status is zero, and if the peer device `tBTA_DM_PEER_DEVICE`
+         `prev_low` field is set, calls `bta_dm_pm_ssr` to re-send SSR params,
+         stops all timers for the device, and then re-calls `bta_dm_pm_set_mode`
+         with timeout set to FALSE to re-attempt with a second action (if the
+         previous PARK or SNIFF failed, otherwise it'll re-attempt the first
+         action).
+     - If the status is `BTM_PM_STS_PARK` or `BTM_PM_STS_HOLD`, saves the
+       previous low power mode in the peer device's `prev_low` field.
+     - If the status is `BTM_PM_STS_SSR`, simply clears or sets the device
+       `info` field's `BTA_DM_DI_USE_SSR` bit, depending on the value of
+       `tBTA_DM_MSG.value`, which determines if the device can handle SSR.
+     - If the status is `BTM_PM_STS_SNIFF` and the info field has the
+       `BTA_DM_DI_SET_SNIFF` bit set, then `BTA_DM_DI_INT_SNIFF` is set,
+       otherwise `BTA_DM_DI_ACP_SNIFF` is set.
+     - If `BTA_PM_STS_ERROR`, the `BTA_DM_DI_SET_SNIFF` bit is cleared in the
+       device info field.
+
+At this point, either the method simply returns, or has called back into
+`bta_dm_pm_set_mode`, in which case the usual flow takes over.
+
+#### Events fired from timers
+
+Timers are used exclusively for handling HCI command timeouts, and filter
+through to a call to `bta_dm_pm_set_mode`:
+
+  1. A timer expires, and calls `bta_dm_pm_timer_cback`.
+  2. `bta_dm_pm_timer_cback` clears the use flag on the timer that fired, and
+     sends off an event to the BTA workqueue thread.
+  3. The event eventually fires off a call to `bta_dm_pm_timer`, which just
+     calls `bta_dm_pm_set_mode` with timeout set to `TRUE`.
diff --git a/rtkbt/code/bt/doc/properties.md b/rtkbt/code/bt/doc/properties.md
new file mode 100755
index 0000000..06c2bf4
--- /dev/null
+++ b/rtkbt/code/bt/doc/properties.md
@@ -0,0 +1,20 @@
+Properties
+===
+This document describes all of the Android properties used by the Bluetooth
+stack.
+
+Please keep the following list in alphabetical order.
+
+* ``` bluetooth.enable_timeout_ms ```  
+  Maximum amount of time Bluetooth can take to start-up, upload firmware etc.  
+  Used in hci/src/hci_layer.c, default 8000.
+
+### TODO: write descriptions of what each property means and how
+it's used.
+
+* ``` debug.sys.noschedgroups ```
+* ``` persist.service.bdroid.bdaddr ```
+* ``` ro.bluetooth.hfp.ver ```
+* ``` ro.bt.bdaddr_path ```
+* ``` ro.product.model ```
+* ``` service.brcm.bt.oob ```
diff --git a/rtkbt/code/bt/doc/style_guide.md b/rtkbt/code/bt/doc/style_guide.md
new file mode 100755
index 0000000..9a83206
--- /dev/null
+++ b/rtkbt/code/bt/doc/style_guide.md
@@ -0,0 +1,325 @@
+# Fluoride Style Guide
+This document outlines the coding conventions and code style used in Fluoride.
+Its primary purpose is to provide explicit guidance on style so that developers
+are consistent with one another and spend less time debating style.
+
+## Directory structure
+Directories at the top-level should consist of major subsystems in Fluoride.
+Each subsystem's purpose should be documented in the `doc/directory_layout.md`
+file, even if it seems obvious from the name.
+
+For a subsystem that contains code, its directory structure should look like:
+```
+  Android.mk
+  include/
+  src/
+  test/
+```
+Further, the directory structure inside `src/` and `include/` should be
+mirrored. In other words, if `src/` contains a subdirectory called `foo/`,
+`include/` must also have a subdirectory named `foo/`.
+
+## Target architecture
+Fluoride targets a variety of hardware and cannot make many assumptions about
+memory layout, sizes, byte order, etc. As a result, some operations are
+considered unsafe and this section outlines the most important ones to watch out
+for.
+
+### Pointer / integer casts
+In general, do not cast pointers to integers or vice versa.
+
+The one exception is if an integer needs to be temporarily converted to a
+pointer and then back to the original integer. This style of code is typically
+needed when providing an integral value as the context to a callback, as in the
+following example.
+```
+void my_callback(void *context) {
+  uintptr_t arg = context;
+}
+
+set_up_callback(my_callback, (uintptr_t)5);
+```
+Note, however, that the integral value was written into the pointer and read
+from the pointer as a `uintptr_t` to avoid a loss of precision (or to make the
+loss explicit).
+
+### Byte order
+It is not safe to assume any particular byte order. When serializing or
+deserializing data, it is unsafe to memcpy unless both source and destination
+pointers have the same type.
+
+## Language
+Fluoride is written in C99 and should take advantage of the features offered by
+it. However, not all language features lend themselves well to the type of
+development required by Fluoride. This section provides guidance on some of the
+features to embrace or avoid.
+
+### C Preprocessor
+The use of the C preprocessor should be minimized. In particular:
+* use functions or, if absolutely necessary, inline functions instead of macros
+* use `static const` variables instead of `#define`
+* use `enum` for enumerations, not a collection of `#define`s
+* minimize the use of feature / conditional macros
+
+The last point is perhaps the most contentious. It's well-understood that
+feature macros are useful in reducing code size but it leads to an exponential
+explosion in build configurations. Setting up, testing, and verifying each of
+the `2^n` build configurations is untenable for `n` greater than, say, 4.
+
+### C++
+Although C++ offers constructs that may make Fluoride development faster,
+safer, more pleasant, etc. the decision _for the time being_ is to stick with
+pure C99. The exceptions are when linking against libraries that are written
+in C++. At the time of writing these libraries are `gtest` and `tinyxml2`,
+where the latter is a dependency that should be eliminated in favor of simpler,
+non-XML formats.
+
+### Variadic functions
+Variadic functions are dangerous and should be avoided for most code. The
+exception is when implementing logging since the benefits of readability
+outweigh the cost of safety.
+
+### Functions with zero arguments
+Functions that do not take any arguments (0 arity) should be declared like so:
+```
+void function(void);
+```
+Note that the function explicitly includes `void` in its parameter list to
+indicate to the compiler that it takes no arguments.
+
+### Variable declarations
+Variables should be declared one per line as close to initialization as possible.
+In nearly all cases, variables should be declared and initialized on the same line.
+Variable declarations should not include extra whitespace to line up fields. For
+example, the following style is preferred:
+```
+  int my_long_variable_name = 0;
+  int x = 5;
+```
+whereas this code is not acceptable:
+```
+  int my_long_variable_name = 0;
+  int                     x = 5;
+```
+
+As a result of the above rule to declare and initialize variables together,
+`for` loops should declare and initialize their iterator variable in the
+initializer statement:
+```
+  for (int i = 0; i < 10; ++i) {
+    // use i
+  }
+```
+
+### Contiguous memory structs
+Use C99 flexible arrays as the last member of a struct if the array needs
+to be allocated in contiguous memory with its containing struct.
+A flexible array member is writen as `array_name[]` without a specified size.
+For example:
+```
+typedef struct {
+  size_t length;
+  uint8_t data[];
+} buffer_t;
+
+// Allocate a buffer with 128 bytes available for my_buffer->data.
+buffer_t *my_buffer = malloc(sizeof(buffer_t) + 128);
+uint8_t *data = my_buffer->data;
+```
+
+### Pointer arithmetic
+Avoid pointer arithmetic when possible as it results in difficult to read code.
+Prefer array-indexing syntax over pointer arithmetic.
+
+In particular, do not write code like this:
+```
+typedef struct {
+  size_t length;
+} buffer_t;
+
+buffer_t *my_buffer = malloc(sizeof(buffer_t) + 128);
+uint8_t *data = (uint8_t *)(my_buffer + 1);
+```
+Instead, use zero-length arrays as described above to avoid pointer arithmetic
+and array indexing entirely.
+
+### Boolean type
+Use the C99 `bool` type with values `true` and `false` defined in `stdbool.h`.
+Not only is this a standardized type, it is also safer and provides more
+compile-time checks.
+
+### Booleans instead of bitfields
+Use booleans to represent boolean state, instead of a set of masks into an
+integer. It's more transparent and readable, and less error prone.
+
+### Function names as strings
+C99 defines `__func__` as an identifier that represents the function's name
+in which it is used. The magic identifier `__FUNCTION__` should not be used
+as it is a non-standard language extension and an equivalent standardized
+mechanism exists. In other words, use `__func__` over `__FUNCTION__`.
+
+## Fluoride conventions
+This section describes coding conventions that are specific to Fluoride.
+Whereas the _Language_ section describes the use of language features, this
+section describes idioms, best practices, and conventions that are independent
+of language features.
+
+### Memory management
+Use `osi_malloc` or `osi_calloc` to allocate bytes instead of plain `malloc`.
+Likewise, use `osi_free` over `free`. These wrapped functions provide additional
+lightweight memory bounds checks that can help track down memory errors.
+
+By convention, functions that contain `*_new` in their name are allocation
+routines and objects returned from those functions must be freed with the
+corresponding `*_free` function. For example, list objects returned from
+`list_new` should be freed with `list_free` and no other freeing routine.
+
+### Asserts
+Use `assert` liberally throughout the code to enforce invariants. Assertions
+should not have any side-effects and should be used to detect programming logic
+errors.
+
+At minimum, every function should assert expectations on its arguments. The
+following example demonstrates the kinds of assertions one should make on
+function arguments.
+```
+  size_t open_and_read_file(const char *filename, void *target_buffer, size_t max_bytes) {
+    assert(filename != NULL);
+    assert(filename[0] != '\0');
+    assert(target_buffer != NULL);
+    assert(max_bytes > 0);
+
+    // function implementation begins here
+  }
+```
+
+## Header files
+In general, every source file (`.c` or `.cpp`) in a `src/` directory should
+have a corresponding header (`.h`) in the `include/` directory.
+
+### Template header file
+```
+[copyright header]
+
+#pragma once
+
+#include <system/a.h>
+#include <system/b.h>
+
+#include "subsystem/include/a.h"
+#include "subsystem/include/b.h"
+
+typedef struct alarm_t alarm_t;
+typedef struct list_t list_t;
+
+// This comment describes the following function. It is not a structured
+// comment, it's English prose. Function arguments can be referred to as
+// |param|. This function returns true if a new object was created, false
+// otherwise.
+bool template_new(const list_t *param);
+
+// Each public function must have a comment describing its semantics. In
+// particular, edge cases, and whether a pointer argument may or may not be
+// NULL.
+void template_use_alarm(alarm_t *alarm);
+```
+
+### License header
+Each header file must begin with the following Apache 2.0 License with `<year>`
+and `<owner>` replaced with the year in which the file was authored and the
+owner of the copyright, respectively.
+```
+/******************************************************************************
+ *
+ *  Copyright (C) <year> <owner>
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+```
+
+### Include guard
+After the license header, each header file must contain the include guard:
+```
+#pragma once
+```
+This form is used over traditional `#define`-based include guards as it is less
+error-prone, doesn't pollute the global namespace, is more compact, and can
+result in faster compilation.
+
+## Formatting
+Code formatting is pretty arbitrary, but the codebase is easier to follow if
+everyone uses the same style. Individuals may not agree with every aspect of
+the formatting rules, and some of the rules may take some getting used to,
+but it is important that all engineers follow the formatting rules so we can all
+understand and read the code easily.
+
+### White space
+* use only spaces, indent 2 spaces at a time
+* no trailing whitespaces at the end of a line
+* no tab characters
+* use one blank line to separate logical code blocks, function definitions,
+  and sections of a file
+
+```
+// Space after keyword in conditionals and loops.
+// No space immeidately before or after parentheses.
+if (foo)
+
+// Space surrounding binary operators.
+if (foo < 5)
+
+// Space after comma.
+for (int x = 0, y = 0; x; ++y)
+
+// No space between unary operators and their argument.
+++x;
+z = -y;
+
+// No space between function name and open parenthesis.
+call_my_fn(arg1, arg2);
+
+// Space before * in variable declaration.
+int *x = NULL;
+
+// Space after // beginning a comment.
+// Notice the space between "//" and "N".
+```
+
+Use only spaces, and indent 2 spaces at a time. Do not use tab characters in the
+codebase.
+
+Use a single blank line to separate logical code blocks, function definitions,
+and sections of a file.
+
+### Brace style
+```
+// Open curly braces are never on a line by themselves.
+void my_function(void) {
+  // Conditional statements with only one child statement should elide braces.
+  // The child statement must be on a new line, indented by 2 spaces.
+  if (foo)
+    do_bar();
+  else
+    do_baz();
+
+  // Conditionals with a branch containing more than one child statement forces
+  // braces on both branches.
+  if (foo) {
+    do_bar();
+  } else {
+    do_baz();
+    ++var1;
+  }
+}
+```
diff --git a/rtkbt/code/bt/doc/supported_features.md b/rtkbt/code/bt/doc/supported_features.md
new file mode 100755
index 0000000..27fdaa6
--- /dev/null
+++ b/rtkbt/code/bt/doc/supported_features.md
@@ -0,0 +1,20 @@
+# Fluoride 1.0
+
+Declaration ID: [D0026807](https://www.bluetooth.org/tpg/QLI_viewQDL.cfm?qid=26807)  
+Qualified Design ID: 67282
+
+Protocol / Profile | Version | Roles
+-------------------+---------+-------
+L2CAP              | 4.2     | Initiator, Acceptor, LE Master, LE Slave
+SDP                | 4.2     | Server, Client
+GAP                | 4.2     | BR/EDR, LE Central, LE Periperhal, LE Observer, LE Broadcaster
+GATT               | 4.2     | Client, Server; LE and BR/EDR
+ATT                | 4.2     | Client, Server; LE and BR/EDR
+SM                 | 4.2     | Master (Initiator), Slave (Responder)
+AVCTP              | 1.4     | Controller, Target
+AVDTP              | 1.2     | Source, Initiator, Acceptor
+BNEP               | 1.0     |
+GAVDP              | 1.2     | Initiator, Acceptor
+MCAP               | 1.0     | Sink
+RFCOMM             | 1.2     |
+SPP                | 1.2     | A, B
diff --git a/rtkbt/code/bt/embdrv/Android.mk b/rtkbt/code/bt/embdrv/Android.mk
new file mode 100755
index 0000000..c455f97
--- /dev/null
+++ b/rtkbt/code/bt/embdrv/Android.mk
@@ -0,0 +1,3 @@
+LOCAL_PATH := $(call my-dir)
+
+include $(call all-subdir-makefiles)
diff --git a/rtkbt/code/bt/embdrv/sbc/Android.mk b/rtkbt/code/bt/embdrv/sbc/Android.mk
new file mode 100755
index 0000000..c455f97
--- /dev/null
+++ b/rtkbt/code/bt/embdrv/sbc/Android.mk
@@ -0,0 +1,3 @@
+LOCAL_PATH := $(call my-dir)
+
+include $(call all-subdir-makefiles)
diff --git a/rtkbt/code/bt/embdrv/sbc/BUILD.gn b/rtkbt/code/bt/embdrv/sbc/BUILD.gn
new file mode 100755
index 0000000..7e75633
--- /dev/null
+++ b/rtkbt/code/bt/embdrv/sbc/BUILD.gn
@@ -0,0 +1,62 @@
+#
+#  Copyright (C) 2015 Google, Inc.
+#
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at:
+#
+#  http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+#
+
+source_set("sbc_decoder") {
+  sources = [
+    "decoder/srce/alloc.c",
+    "decoder/srce/bitalloc.c",
+    "decoder/srce/bitalloc-sbc.c",
+    "decoder/srce/bitstream-decode.c",
+    "decoder/srce/decoder-oina.c",
+    "decoder/srce/decoder-private.c",
+    "decoder/srce/decoder-sbc.c",
+    "decoder/srce/dequant.c",
+    "decoder/srce/framing.c",
+    "decoder/srce/framing-sbc.c",
+    "decoder/srce/oi_codec_version.c",
+    "decoder/srce/synthesis-8-generated.c",
+    "decoder/srce/synthesis-dct8.c",
+    "decoder/srce/synthesis-sbc.c",
+  ]
+
+  include_dirs = [ "decoder/include" ]
+}
+
+source_set("sbc_encoder") {
+  sources = [
+    "encoder/srce/sbc_analysis.c",
+    "encoder/srce/sbc_dct.c",
+    "encoder/srce/sbc_dct_coeffs.c",
+    "encoder/srce/sbc_enc_bit_alloc_mono.c",
+    "encoder/srce/sbc_enc_bit_alloc_ste.c",
+    "encoder/srce/sbc_enc_coeffs.c",
+    "encoder/srce/sbc_encoder.c",
+    "encoder/srce/sbc_packing.c",
+  ]
+
+  include_dirs = [
+    "encoder/include",
+    "//include",
+    "//stack/include",
+  ]
+}
+
+static_library("sbc") {
+  deps = [
+    ":sbc_decoder",
+    ":sbc_encoder",
+  ]
+}
diff --git a/rtkbt/code/bt/embdrv/sbc/decoder/Android.mk b/rtkbt/code/bt/embdrv/sbc/decoder/Android.mk
new file mode 100755
index 0000000..2d8faeb
--- /dev/null
+++ b/rtkbt/code/bt/embdrv/sbc/decoder/Android.mk
@@ -0,0 +1,35 @@
+LOCAL_PATH:= $(call my-dir)
+
+# Bluetooth SBC decoder static library for target
+# ========================================================
+include $(CLEAR_VARS)
+
+# sbc decoder
+LOCAL_SRC_FILES+= \
+        ./srce/alloc.c \
+        ./srce/bitalloc.c \
+        ./srce/bitalloc-sbc.c \
+        ./srce/bitstream-decode.c \
+        ./srce/decoder-oina.c \
+        ./srce/decoder-private.c \
+        ./srce/decoder-sbc.c \
+        ./srce/dequant.c \
+        ./srce/framing.c \
+        ./srce/framing-sbc.c \
+        ./srce/oi_codec_version.c \
+        ./srce/synthesis-sbc.c \
+        ./srce/synthesis-dct8.c \
+        ./srce/synthesis-8-generated.c \
+
+LOCAL_C_INCLUDES += $(LOCAL_PATH)/include
+LOCAL_C_INCLUDES += $(LOCAL_PATH)/srce
+
+LOCAL_MODULE:= libbt-qcom_sbc_decoder-rtk
+LOCAL_MODULE_TAGS := optional
+LOCAL_MODULE_CLASS := STATIC_LIBRARIES
+
+LOCAL_CFLAGS += $(bluetooth_CFLAGS)
+LOCAL_CONLYFLAGS += $(bluetooth_CONLYFLAGS)
+LOCAL_CPPFLAGS += $(bluetooth_CPPFLAGS)
+
+include $(BUILD_STATIC_LIBRARY)
diff --git a/rtkbt/code/bt/embdrv/sbc/decoder/include/oi_assert.h b/rtkbt/code/bt/embdrv/sbc/decoder/include/oi_assert.h
new file mode 100755
index 0000000..35d86cf
--- /dev/null
+++ b/rtkbt/code/bt/embdrv/sbc/decoder/include/oi_assert.h
@@ -0,0 +1,86 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 The Android Open Source Project
+ *  Copyright 2002 - 2004 Open Interface North America, Inc. All rights reserved.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+#ifndef _OI_ASSERT_H
+#define _OI_ASSERT_H
+/** @file
+  This file provides macros and functions for compile-time and run-time assertions.
+
+  When the OI_DEBUG preprocessor value is defined, the macro OI_ASSERT is compiled into
+  the program, providing for a runtime assertion failure check.
+  C_ASSERT is a macro that can be used to perform compile time checks.
+*/
+/**********************************************************************************
+  $Revision: #1 $
+***********************************************************************************/
+
+
+/** \addtogroup Debugging Debugging APIs */
+/**@{*/
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+#ifdef OI_DEBUG
+
+/** The macro OI_ASSERT takes a condition argument. If the asserted condition
+    does not evaluate to true, the OI_ASSERT macro calls the host-dependent function,
+    OI_AssertFail(), which reports the failure and generates a runtime error.
+*/
+void OI_AssertFail(char* file, int line, char* reason);
+
+
+#define OI_ASSERT(condition) \
+    { if (!(condition)) OI_AssertFail(__FILE__, __LINE__, #condition); }
+
+#define OI_ASSERT_FAIL(msg) \
+    { OI_AssertFail(__FILE__, __LINE__, msg); }
+
+#else
+
+
+#define OI_ASSERT(condition)
+#define OI_ASSERT_FAIL(msg)
+
+#endif
+
+
+/**
+   C_ASSERT() can be used to perform many compile-time assertions: type sizes, field offsets, etc.
+   An assertion failure results in compile time error C2118: negative subscript.
+   Unfortunately, this elegant macro doesn't work with GCC, so it's all commented out
+   for now. Perhaps later.....
+*/
+
+#ifndef C_ASSERT
+// #define C_ASSERT(e) typedef char __C_ASSERT__[(e)?1:-1]
+// #define C_ASSERT(e)
+#endif
+
+
+/*****************************************************************************/
+#ifdef __cplusplus
+}
+#endif
+
+/**@}*/
+
+#endif /* _OI_ASSERT_H */
+
diff --git a/rtkbt/code/bt/embdrv/sbc/decoder/include/oi_bitstream.h b/rtkbt/code/bt/embdrv/sbc/decoder/include/oi_bitstream.h
new file mode 100755
index 0000000..df0c10f
--- /dev/null
+++ b/rtkbt/code/bt/embdrv/sbc/decoder/include/oi_bitstream.h
@@ -0,0 +1,123 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 The Android Open Source Project
+ *  Copyright 2003 - 2004 Open Interface North America, Inc. All rights reserved.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+#ifndef _OI_BITSTREAM_H
+#define _OI_BITSTREAM_H
+
+/**********************************************************************************
+  $Revision: #1 $
+***********************************************************************************/
+
+
+/**
+@file
+Function prototypes and macro definitions for manipulating input and output
+bitstreams.
+
+@ingroup codec_internal
+*/
+
+/**
+@addtogroup codec_internal
+@{
+*/
+
+#include "oi_codec_sbc_private.h"
+#include "oi_stddefs.h"
+
+INLINE void OI_BITSTREAM_ReadInit(OI_BITSTREAM *bs, const OI_BYTE *buffer);
+
+INLINE void OI_BITSTREAM_WriteInit(OI_BITSTREAM *bs, OI_BYTE *buffer);
+
+INLINE OI_UINT32 OI_BITSTREAM_ReadUINT(OI_BITSTREAM *bs, OI_UINT bits);
+
+INLINE OI_UINT8 OI_BITSTREAM_ReadUINT4Aligned(OI_BITSTREAM *bs);
+
+INLINE OI_UINT8 OI_BITSTREAM_ReadUINT8Aligned(OI_BITSTREAM *bs);
+
+INLINE void OI_BITSTREAM_WriteUINT(OI_BITSTREAM *bs,
+                                   OI_UINT16 value,
+                                   OI_UINT bits);
+
+/*
+ * Use knowledge that the bitstream is aligned to optimize the write of a byte
+ */
+PRIVATE void OI_BITSTREAM_WriteUINT8Aligned(OI_BITSTREAM *bs,
+                                            OI_UINT8 datum);
+
+/*
+ * Use knowledge that the bitstream is aligned to optimize the write pair of nibbles
+ */
+PRIVATE void OI_BITSTREAM_Write2xUINT4Aligned(OI_BITSTREAM *bs,
+                                              OI_UINT8 datum1,
+                                              OI_UINT8 datum2);
+
+/** Internally the bitstream looks ahead in the stream. When
+ * OI_SBC_ReadScalefactors() goes to temporarily break the abstraction, it will
+ * need to know where the "logical" pointer is in the stream.
+ */
+#define OI_BITSTREAM_GetWritePtr(bs) ((bs)->ptr.w - 3)
+#define OI_BITSTREAM_GetReadPtr(bs) ((bs)->ptr.r - 3)
+
+/** This is declared here as a macro because decoder.c breaks the bitsream
+ * encapsulation for efficiency reasons.
+ */
+#define OI_BITSTREAM_READUINT(result, bits, ptr, value, bitPtr) \
+do { \
+    OI_ASSERT((bits) <= 16); \
+    OI_ASSERT((bitPtr) < 16); \
+    OI_ASSERT((bitPtr) >= 8); \
+    \
+    result = (value) << (bitPtr); \
+    result >>= 32 - (bits); \
+    \
+    bitPtr += (bits); \
+    while (bitPtr >= 16) { \
+        value = ((value) << 8) | *ptr++; \
+        bitPtr -= 8; \
+    } \
+    OI_ASSERT((bits == 0) || (result < (1u << (bits)))); \
+} while (0)
+
+
+#define OI_BITSTREAM_WRITEUINT(ptr, value, bitPtr, datum, bits) \
+do {\
+    bitPtr -= bits;\
+    value |= datum << bitPtr;\
+    \
+    while (bitPtr <= 16) {\
+        bitPtr += 8;\
+        *ptr++ = (OI_UINT8)(value >> 24);\
+        value <<= 8;\
+    }\
+} while (0)
+
+#define OI_BITSTREAM_WRITEFLUSH(ptr, value, bitPtr) \
+do {\
+    while (bitPtr < 32) {\
+        bitPtr += 8;\
+        *ptr++ = (OI_UINT8)(value >> 24);\
+        value <<= 8;\
+    }\
+} while (0)
+
+/**
+@}
+*/
+
+#endif /* _OI_BITSTREAM_H */
diff --git a/rtkbt/code/bt/embdrv/sbc/decoder/include/oi_bt_spec.h b/rtkbt/code/bt/embdrv/sbc/decoder/include/oi_bt_spec.h
new file mode 100755
index 0000000..b98a582
--- /dev/null
+++ b/rtkbt/code/bt/embdrv/sbc/decoder/include/oi_bt_spec.h
@@ -0,0 +1,229 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 The Android Open Source Project
+ *  Copyright 2002 - 2004 Open Interface North America, Inc. All rights reserved.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+#ifndef _OI_BT_SPEC_H
+#define _OI_BT_SPEC_H
+/**
+ * @file
+ *
+ * This file contains common definitions from the Bluetooth specification.
+ *
+ */
+
+/**********************************************************************************
+  $Revision: #1 $
+***********************************************************************************/
+
+#include "oi_stddefs.h"
+
+/** \addtogroup Misc Miscellaneous APIs */
+/**@{*/
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/** The maximum number of active slaves in a piconet. */
+#define OI_BT_MAX_ACTIVE_SLAVES 7
+
+/** the number of bytes in a Bluetooth device address (BD_ADDR) */
+#define OI_BD_ADDR_BYTE_SIZE   6
+
+/**
+ * 48-bit Bluetooth device address
+ *
+ * Because 48-bit integers may not be supported on all platforms, the
+ * address is defined as an array of bytes. This array is big-endian,
+ * meaning that
+ *  - array[0] contains bits 47-40,
+ *  - array[1] contains bits 39-32,
+ *  - array[2] contains bits 31-24,
+ *  - array[3] contains bits 23-16,
+ *  - array[4] contains bits 15-8, and
+ *  - array[5] contains bits 7-0.
+ */
+typedef struct  {
+    OI_UINT8    addr[OI_BD_ADDR_BYTE_SIZE] ;   /**< Bluetooth device address represented as an array of 8-bit values */
+} OI_BD_ADDR ;
+
+/**
+ * @name Data types for working with UUIDs
+ * UUIDs are 16 bytes (128 bits).
+ *
+ * To avoid having to pass around 128-bit values all the time, 32-bit and 16-bit
+ * UUIDs are defined, along with a mapping from the shorter versions to the full
+ * version.
+ *
+ * @{
+ */
+
+/**
+ * 16-bit representation of a 128-bit UUID
+ */
+typedef OI_UINT16 OI_UUID16;
+
+/**
+ * 32-bit representation of a 128-bit UUID
+ */
+typedef OI_UINT32 OI_UUID32;
+
+/**
+ * number of bytes in a 128 bit UUID
+ */
+#define OI_BT_UUID128_SIZE  16
+
+/**
+ * number of bytes in IPv6 style addresses
+ */
+#define OI_BT_IPV6ADDR_SIZE  16
+
+/**
+ * type definition for a 128-bit UUID
+ *
+ * To simplify conversion between 128-bit UUIDs and 16-bit and 32-bit UUIDs,
+ * the most significant 32 bits are stored with the same endian-ness as is
+ * native on the target (local) device. The remainder of the 128-bit UUID is
+ * stored as bytes in big-endian order.
+ */
+typedef struct {
+    OI_UINT32 ms32bits;                                    /**< most significant 32 bits of 128-bit UUID */
+    OI_UINT8 base[OI_BT_UUID128_SIZE - sizeof(OI_UINT32)]; /**< remainder of 128-bit UUID, array of 8-bit values */
+} OI_UUID128;
+
+/** @} */
+
+/** number of bytes in a link key */
+#define OI_BT_LINK_KEY_SIZE    16
+
+/**
+ * type definition for a baseband link key
+ *
+ * Because 128-bit integers may not be supported on all platforms, we define
+ * link keys as an array of bytes. Unlike the Bluetooth device address,
+ * the link key is stored in little-endian order, meaning that
+ *  - array[0]  contains bits 0  - 7,
+ *  - array[1]  contains bits 8  - 15,
+ *  - array[2]  contains bits 16 - 23,
+ *  - array[3]  contains bits 24 - 31,
+ *  - array[4]  contains bits 32 - 39,
+ *  - array[5]  contains bits 40 - 47,
+ *  - array[6]  contains bits 48 - 55,
+ *  - array[7]  contains bits 56 - 63,
+ *  - array[8]  contains bits 64 - 71,
+ *  - array[9]  contains bits 72 - 79,
+ *  - array[10] contains bits 80 - 87,
+ *  - array[11] contains bits 88 - 95,
+ *  - array[12] contains bits 96 - 103,
+ *  - array[13] contains bits 104- 111,
+ *  - array[14] contains bits 112- 119, and
+ *  - array[15] contains bits 120- 127.
+ */
+typedef struct {
+    OI_UINT8    key[OI_BT_LINK_KEY_SIZE] ;   /**< link key represented as an array of 8-bit values */
+} OI_LINK_KEY ;
+
+
+/** Out-of-band data size - C and R values are 16-bytes each */
+#define OI_BT_OOB_NUM_BYTES     16
+
+typedef struct {
+    OI_UINT8    value[OI_BT_OOB_NUM_BYTES] ;   /**< same struct used for C and R values */
+} OI_OOB_DATA ;
+
+
+/**
+ * link key types
+ */
+typedef enum  {
+    OI_LINK_KEY_TYPE_COMBO              = 0,    /**< combination key */
+    OI_LINK_KEY_TYPE_LOCAL_UNIT         = 1,    /**< local unit key */
+    OI_LINK_KEY_TYPE_REMOTE_UNIT        = 2,    /**< remote unit key */
+    OI_LINK_KEY_TYPE_DEBUG_COMBO        = 3,    /**< debug combination key */
+    OI_LINK_KEY_TYPE_UNAUTHENTICATED    = 4,    /**< Unauthenticated */
+    OI_LINK_KEY_TYPE_AUTHENTICATED      = 5,    /**< Authenticated */
+    OI_LINK_KEY_TYPE_CHANGED_COMBO      = 6     /**< Changed */
+
+} OI_BT_LINK_KEY_TYPE ;
+
+
+/** amount of space allocated for a PIN (personal indentification number) in bytes */
+#define OI_BT_PIN_CODE_SIZE    16
+
+/** data type for a PIN (PINs are treated as strings, so endianness does not apply.) */
+typedef struct  {
+    OI_UINT8    pin[OI_BT_PIN_CODE_SIZE] ; /**< PIN represented as an array of 8-bit values */
+} OI_PIN_CODE ;
+
+/** maximum number of SCO connections per device, which is 3 as of version 2.0+EDR
+    of the Bluetooth specification (see sec 4.3 of vol 2 part B) */
+#define OI_BT_MAX_SCO_CONNECTIONS  3
+
+/** data type for clock offset */
+typedef OI_UINT16   OI_BT_CLOCK_OFFSET ;
+
+/** data type for a LM handle */
+typedef OI_UINT16 OI_HCI_LM_HANDLE;
+
+/** opaque data type for a SCO or ACL connection handle */
+typedef struct _OI_HCI_CONNECTION *OI_HCI_CONNECTION_HANDLE;
+
+/** data type for HCI Error Code, as defined in oi_hcispec.h */
+typedef OI_UINT8    OI_HCI_ERROR_CODE ;
+
+/**
+ * The Bluetooth device type is indicated by a 24-bit bitfield, represented as a
+ * 32-bit number in the stack. The bit layout and values for device class are specified
+ * in the file oi_bt_assigned_nos.h and in the Bluetooth "Assigned Numbers" specification
+ * at http://www.bluetooth.org/assigned-numbers/.
+ */
+typedef OI_UINT32   OI_BT_DEVICE_CLASS ;
+
+#define OI_BT_DEV_CLASS_FORMAT_MASK        0x000003    /**< Bits 0-1 contain format type. */
+#define OI_BT_DEV_CLASS_MINOR_DEVICE_MASK  0x0000FC    /**< Bits 2-7 contain minor device class value. */
+#define OI_BT_DEV_CLASS_MAJOR_DEVICE_MASK  0x001F00    /**< Bits 8-12 contain major device class value. */
+#define OI_BT_DEV_CLASS_MAJOR_SERVICE_MASK 0xFFE000    /**< Bits 13-23 contain major service class value. */
+
+/** There is currently only one device class format defined, type 00. */
+#define OI_BT_DEV_CLASS_FORMAT_TYPE        00
+
+/** Bit 13 in device class indicates limited discoverability mode (GAP v2.0+EDR, section 4.1.2.2) */
+#define OI_BT_DEV_CLASS_LIMITED_DISCO_BIT  BIT13
+
+/** macro to test validity of the Device Class Format */
+#define OI_BT_VALID_DEVICE_CLASS_FORMAT(class) (OI_BT_DEV_CLASS_FORMAT_TYPE == ((class) & OI_BT_DEV_CLASS_FORMAT_MASK))
+
+/** the time between baseband clock ticks, currently 625 microseconds (one slot) */
+#define OI_BT_TICK 625
+/** some macros to convert to/from baseband clock ticks - use no floating point! */
+#define OI_SECONDS_TO_BT_TICKS(secs)    ((secs)*1600)
+#define OI_BT_TICKS_TO_SECONDS(ticks)   ((ticks)/1600)
+#define OI_MSECS_TO_BT_TICKS(msecs)     (((msecs)*8)/5)
+#define OI_BT_TICKS_TO_MSECS(ticks)     (((ticks)*5)/8)
+
+/** EIR byte order */
+#define OI_EIR_BYTE_ORDER   OI_LITTLE_ENDIAN_BYTE_ORDER
+
+
+#ifdef __cplusplus
+}
+#endif
+
+/**@}*/
+
+/*****************************************************************************/
+#endif /* _OI_BT_SPEC_H */
diff --git a/rtkbt/code/bt/embdrv/sbc/decoder/include/oi_codec_sbc.h b/rtkbt/code/bt/embdrv/sbc/decoder/include/oi_codec_sbc.h
new file mode 100755
index 0000000..ff5e6c1
--- /dev/null
+++ b/rtkbt/code/bt/embdrv/sbc/decoder/include/oi_codec_sbc.h
@@ -0,0 +1,484 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 The Android Open Source Project
+ *  Copyright 2003 - 2004 Open Interface North America, Inc. All rights reserved.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/**********************************************************************************
+  $Revision: #1 $
+***********************************************************************************/
+
+#ifndef _OI_CODEC_SBC_CORE_H
+#define _OI_CODEC_SBC_CORE_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+@file
+Declarations of codec functions, data types, and macros.
+
+@ingroup codec_lib
+*/
+
+/**
+@addtogroup codec_lib
+@{
+*/
+
+/* Non-BM3 users of of the codec must include oi_codec_sbc_bm3defs.h prior to
+ * including this file, or else these includes will fail because the BM3 SDK is
+ * not in the include path */
+#ifndef _OI_CODEC_SBC_BM3DEFS_H
+#include "oi_stddefs.h"
+#include "oi_status.h"
+#endif
+
+#include <stdint.h>
+
+#define SBC_MAX_CHANNELS 2
+#define SBC_MAX_BANDS 8
+#define SBC_MAX_BLOCKS 16
+#define SBC_MIN_BITPOOL 2   /**< Minimum size of the bit allocation pool used to encode the stream */
+#define SBC_MAX_BITPOOL 250 /**< Maximum size of the bit allocation pool used to encode the stream */
+#define SBC_MAX_ONE_CHANNEL_BPS 320000
+#define SBC_MAX_TWO_CHANNEL_BPS 512000
+
+
+#define SBC_WBS_BITRATE 62000
+#define SBC_WBS_BITPOOL 27
+#define SBC_WBS_NROF_BLOCKS 16
+#define SBC_WBS_FRAME_LEN 62
+#define SBC_WBS_SAMPLES_PER_FRAME 128
+
+
+#define SBC_HEADER_LEN 4
+#define SBC_MAX_FRAME_LEN (SBC_HEADER_LEN + \
+                             ((SBC_MAX_BANDS * SBC_MAX_CHANNELS / 2) + \
+                              (SBC_MAX_BANDS + SBC_MAX_BLOCKS * SBC_MAX_BITPOOL + 7)/8))
+#define SBC_MAX_SAMPLES_PER_FRAME   (SBC_MAX_BANDS * SBC_MAX_BLOCKS)
+
+#define SBC_MAX_SCALEFACTOR_BYTES ((4*(SBC_MAX_CHANNELS * SBC_MAX_BANDS) + 7)/8)
+
+#define OI_SBC_SYNCWORD 0x9c
+#define OI_SBC_ENHANCED_SYNCWORD 0x9d
+
+/**@name Sampling frequencies */
+/**@{*/
+#define SBC_FREQ_16000 0 /**< The sampling frequency is 16 kHz. One possible value for the @a frequency parameter of OI_CODEC_SBC_EncoderConfigure() */
+#define SBC_FREQ_32000 1 /**< The sampling frequency is 32 kHz. One possible value for the @a frequency parameter of OI_CODEC_SBC_EncoderConfigure() */
+#define SBC_FREQ_44100 2 /**< The sampling frequency is 44.1 kHz. One possible value for the @a frequency parameter of OI_CODEC_SBC_EncoderConfigure() */
+#define SBC_FREQ_48000 3 /**< The sampling frequency is 48 kHz. One possible value for the @a frequency parameter of OI_CODEC_SBC_EncoderConfigure() */
+/**@}*/
+
+/**@name Channel modes */
+/**@{*/
+#define SBC_MONO 0         /**< The mode of the encoded channel is mono. One possible value for the @a mode parameter of OI_CODEC_SBC_EncoderConfigure() */
+#define SBC_DUAL_CHANNEL 1 /**< The mode of the encoded channel is dual-channel. One possible value for the @a mode parameter of OI_CODEC_SBC_EncoderConfigure() */
+#define SBC_STEREO 2       /**< The mode of the encoded channel is stereo. One possible value for the @a mode parameter of OI_CODEC_SBC_EncoderConfigure() */
+#define SBC_JOINT_STEREO 3 /**< The mode of the encoded channel is joint stereo. One possible value for the @a mode parameter of OI_CODEC_SBC_EncoderConfigure() */
+/**@}*/
+
+/**@name Subbands */
+/**@{*/
+#define SBC_SUBBANDS_4  0 /**< The encoded stream has 4 subbands. One possible value for the @a subbands parameter of OI_CODEC_SBC_EncoderConfigure()*/
+#define SBC_SUBBANDS_8  1 /**< The encoded stream has 8 subbands. One possible value for the @a subbands parameter of OI_CODEC_SBC_EncoderConfigure() */
+/**@}*/
+
+/**@name Block lengths */
+/**@{*/
+#define SBC_BLOCKS_4    0 /**< A block size of 4 blocks was used to encode the stream. One possible value for the @a blocks parameter of OI_CODEC_SBC_EncoderConfigure() */
+#define SBC_BLOCKS_8    1 /**< A block size of 8 blocks was used to encode the stream is. One possible value for the @a blocks parameter of OI_CODEC_SBC_EncoderConfigure() */
+#define SBC_BLOCKS_12   2 /**< A block size of 12 blocks was used to encode the stream. One possible value for the @a blocks parameter of OI_CODEC_SBC_EncoderConfigure() */
+#define SBC_BLOCKS_16   3 /**< A block size of 16 blocks was used to encode the stream. One possible value for the @a blocks parameter of OI_CODEC_SBC_EncoderConfigure() */
+/**@}*/
+
+/**@name Bit allocation methods */
+/**@{*/
+#define SBC_LOUDNESS 0    /**< The bit allocation method. One possible value for the @a loudness parameter of OI_CODEC_SBC_EncoderConfigure() */
+#define SBC_SNR 1         /**< The bit allocation method. One possible value for the @a loudness parameter of OI_CODEC_SBC_EncoderConfigure() */
+/**@}*/
+
+/**
+@}
+
+@addtogroup codec_internal
+@{
+*/
+
+typedef OI_INT16 SBC_BUFFER_T;
+
+
+/** Used internally. */
+typedef struct {
+    OI_UINT16 frequency;    /**< The sampling frequency. Input parameter. */
+    OI_UINT8 freqIndex;
+
+    OI_UINT8 nrof_blocks;   /**< The block size used to encode the stream. Input parameter. */
+    OI_UINT8 blocks;
+
+
+    OI_UINT8 nrof_subbands; /**< The number of subbands of the encoded stream. Input parameter. */
+    OI_UINT8 subbands;
+
+    OI_UINT8 mode;          /**< The mode of the encoded channel. Input parameter. */
+    OI_UINT8 nrof_channels; /**< The number of channels of the encoded stream. */
+
+    OI_UINT8 alloc;         /**< The bit allocation method. Input parameter. */
+    OI_UINT8 bitpool;       /**< Size of the bit allocation pool used to encode the stream. Input parameter. */
+    OI_UINT8 crc;           /**< Parity check byte used for error detection. */
+    OI_UINT8 join;          /**< Whether joint stereo has been used. */
+    OI_UINT8 enhanced;
+    OI_UINT8 min_bitpool;   /**< This value is only used when encoding. SBC_MAX_BITPOOL if variable
+                                 bitpools are disallowed, otherwise the minimum bitpool size that will
+                                 be used by the bit allocator.  */
+
+    OI_UINT8 cachedInfo;    /**< Information about the previous frame */
+} OI_CODEC_SBC_FRAME_INFO;
+
+/** Used internally. */
+typedef struct {
+    const OI_CHAR *codecInfo;
+    OI_CODEC_SBC_FRAME_INFO frameInfo;
+    OI_INT8 scale_factor[SBC_MAX_CHANNELS*SBC_MAX_BANDS];
+    OI_UINT32 frameCount;
+    OI_INT32 *subdata;
+
+    SBC_BUFFER_T *filterBuffer[SBC_MAX_CHANNELS];
+    OI_INT32 filterBufferLen;
+    OI_UINT filterBufferOffset;
+
+    union {
+        OI_UINT8 uint8[SBC_MAX_CHANNELS*SBC_MAX_BANDS];
+        OI_UINT32 uint32[SBC_MAX_CHANNELS*SBC_MAX_BANDS/4];
+    } bits;
+    OI_UINT8 maxBitneed;    /**< Running maximum bitneed */
+    OI_BYTE formatByte;
+    OI_UINT8 pcmStride;
+    OI_UINT8 maxChannels;
+} OI_CODEC_SBC_COMMON_CONTEXT;
+
+
+/*
+ * A smaller value reduces RAM usage at the expense of increased CPU usage. Values in the range
+ * 27..50 are recommended, beyond 50 there is a diminishing return on reduced CPU usage.
+ */
+#define SBC_CODEC_MIN_FILTER_BUFFERS 16
+#define SBC_CODEC_FAST_FILTER_BUFFERS 27
+
+/* Expands to the number of OI_UINT32s needed to ensure enough memory to encode
+ * or decode streams of numChannels channels, using numBuffers buffers.
+ * Example:
+ * OI_UINT32 decoderData[CODEC_DATA_WORDS(SBC_MAX_CHANNELS, SBC_DECODER_FAST_SYNTHESIS_BUFFERS)];
+ * */
+#define CODEC_DATA_WORDS(numChannels, numBuffers) \
+    ((\
+        (sizeof(OI_INT32) * SBC_MAX_BLOCKS * numChannels * SBC_MAX_BANDS) \
+         + (sizeof(SBC_BUFFER_T) * SBC_MAX_CHANNELS * SBC_MAX_BANDS * numBuffers) \
+         + (sizeof (OI_UINT32) - 1) \
+    ) / sizeof(OI_UINT32))
+
+/** Opaque parameter to decoding functions; maintains decoder context. */
+typedef struct {
+    OI_CODEC_SBC_COMMON_CONTEXT common;
+    OI_UINT8 limitFrameFormat;              /* Boolean, set by OI_CODEC_SBC_DecoderLimit() */
+    OI_UINT8 restrictSubbands;
+    OI_UINT8 enhancedEnabled;
+    OI_UINT8 bufferedBlocks;
+} OI_CODEC_SBC_DECODER_CONTEXT;
+
+typedef struct {
+    OI_UINT32 data[CODEC_DATA_WORDS(1, SBC_CODEC_FAST_FILTER_BUFFERS)];
+} OI_CODEC_SBC_CODEC_DATA_MONO;
+
+typedef struct {
+    OI_UINT32 data[CODEC_DATA_WORDS(2, SBC_CODEC_FAST_FILTER_BUFFERS)];
+} OI_CODEC_SBC_CODEC_DATA_STEREO;
+
+/**
+@}
+
+@addtogroup codec_lib
+@{
+*/
+
+/**
+ * This function resets the decoder. The context must be reset when
+ * changing streams, or if the following stream parameters change:
+ * number of subbands, stereo mode, or frequency.
+ *
+ * @param context   Pointer to the decoder context structure to be reset.
+ *
+ * @param enhanced  If true, enhanced SBC operation is enabled. If enabled,
+ *                  the codec will recognize the alternative syncword for
+ *                  decoding an enhanced SBC stream. Enhancements should not
+ *                  be enabled unless the stream is known to be generated
+ *                  by an enhanced encoder, or there is a small possibility
+ *                  for decoding glitches if synchronization were to be lost.
+ */
+OI_STATUS OI_CODEC_SBC_DecoderReset(OI_CODEC_SBC_DECODER_CONTEXT *context,
+                                    OI_UINT32 *decoderData,
+                                    OI_UINT32 decoderDataBytes,
+                                    OI_UINT8 maxChannels,
+                                    OI_UINT8 pcmStride,
+                                    OI_BOOL enhanced);
+
+/**
+ * This function restricts the kind of SBC frames that the Decoder will
+ * process.  Its use is optional.  If used, it must be called after
+ * calling OI_CODEC_SBC_DecoderReset(). After it is called, any calls
+ * to OI_CODEC_SBC_DecodeFrame() with SBC frames that do not conform
+ * to the Subband and Enhanced SBC setting will be rejected with an
+ * OI_STATUS_INVALID_PARAMETERS return.
+ *
+ * @param context   Pointer to the decoder context structure to be limited.
+ *
+ * @param enhanced  If true, all frames passed to the decoder must be
+ *                  Enhanced SBC frames. If false, all frames must be
+ *                  standard SBC frames.
+ *
+ * @param subbands  May be set to SBC_SUBBANDS_4 or SBC_SUBBANDS_8. All
+ *                  frames passed to the decoder must be encoded with
+ *                  the requested number of subbands.
+ *
+ */
+OI_STATUS OI_CODEC_SBC_DecoderLimit(OI_CODEC_SBC_DECODER_CONTEXT *context,
+                                    OI_BOOL enhanced,
+                                    OI_UINT8 subbands);
+
+/**
+ * This function sets the decoder parameters for a raw decode where the decoder parameters are not
+ * available in the sbc data stream. OI_CODEC_SBC_DecoderReset must be called
+ * prior to calling this function.
+ *
+ * @param context        Decoder context structure. This must be the context must be
+ *                       used each time a frame is decoded.
+ *
+ * @param enhanced       Set to TRUE to enable Qualcomm proprietary
+ *                       quality enhancements.
+ *
+ * @param frequency      One of SBC_FREQ_16000, SBC_FREQ_32000, SBC_FREQ_44100,
+ *                       SBC_FREQ_48000
+ *
+ * @param mode           One of SBC_MONO, SBC_DUAL_CHANNEL, SBC_STEREO,
+ *                       SBC_JOINT_STEREO
+ *
+ * @param subbands       One of SBC_SUBBANDS_4, SBC_SUBBANDS_8
+ *
+ * @param blocks         One of SBC_BLOCKS_4, SBC_BLOCKS_8, SBC_BLOCKS_12,
+ *                       SBC_BLOCKS_16
+ *
+ * @param alloc          One of SBC_LOUDNESS, SBC_SNR
+ *
+ * @param maxBitpool     The maximum bitpool size for this context
+ */
+OI_STATUS OI_CODEC_SBC_DecoderConfigureRaw(OI_CODEC_SBC_DECODER_CONTEXT *context,
+                                           OI_BOOL enhanced,
+                                           OI_UINT8 frequency,
+                                           OI_UINT8 mode,
+                                           OI_UINT8 subbands,
+                                           OI_UINT8 blocks,
+                                           OI_UINT8 alloc,
+                                           OI_UINT8 maxBitpool);
+
+/**
+ * Decode one SBC frame. The frame has no header bytes. The context must have been previously
+ * initialized by calling  OI_CODEC_SBC_DecoderConfigureRaw().
+ *
+ * @param context       Pointer to a decoder context structure. The same context
+ *                      must be used each time when decoding from the same stream.
+ *
+ * @param bitpool       The actual bitpool size for this frame. Must be <= the maxbitpool specified
+ *                      in the call to OI_CODEC_SBC_DecoderConfigureRaw(),
+ *
+ * @param frameData     Address of a pointer to the SBC data to decode. This
+ *                      value will be updated to point to the next frame after
+ *                      successful decoding.
+ *
+ * @param frameBytes    Pointer to a UINT32 containing the number of available
+ *                      bytes of frame data. This value will be updated to reflect
+ *                      the number of bytes remaining after a decoding operation.
+ *
+ * @param pcmData       Address of an array of OI_INT16 pairs, which will be
+ *                      populated with the decoded audio data. This address
+ *                      is not updated.
+ *
+ * @param pcmBytes      Pointer to a UINT32 in/out parameter. On input, it
+ *                      should contain the number of bytes available for pcm
+ *                      data. On output, it will contain the number of bytes
+ *                      written. Note that this differs from the semantics of
+ *                      frameBytes.
+ */
+OI_STATUS OI_CODEC_SBC_DecodeRaw(OI_CODEC_SBC_DECODER_CONTEXT *context,
+                                 OI_UINT8 bitpool,
+                                 const OI_BYTE **frameData,
+                                 OI_UINT32 *frameBytes,
+                                 OI_INT16 *pcmData,
+                                 OI_UINT32 *pcmBytes);
+
+/**
+ * Decode one SBC frame.
+ *
+ * @param context       Pointer to a decoder context structure. The same context
+ *                      must be used each time when decoding from the same stream.
+ *
+ * @param frameData     Address of a pointer to the SBC data to decode. This
+ *                      value will be updated to point to the next frame after
+ *                      successful decoding.
+ *
+ * @param frameBytes    Pointer to a UINT32 containing the number of available
+ *                      bytes of frame data. This value will be updated to reflect
+ *                      the number of bytes remaining after a decoding operation.
+ *
+ * @param pcmData       Address of an array of OI_INT16 pairs, which will be
+ *                      populated with the decoded audio data. This address
+ *                      is not updated.
+ *
+ * @param pcmBytes      Pointer to a UINT32 in/out parameter. On input, it
+ *                      should contain the number of bytes available for pcm
+ *                      data. On output, it will contain the number of bytes
+ *                      written. Note that this differs from the semantics of
+ *                      frameBytes.
+ */
+OI_STATUS OI_CODEC_SBC_DecodeFrame(OI_CODEC_SBC_DECODER_CONTEXT *context,
+                                   const OI_BYTE **frameData,
+                                   OI_UINT32 *frameBytes,
+                                   OI_INT16 *pcmData,
+                                   OI_UINT32 *pcmBytes);
+
+/**
+ * Calculate the number of SBC frames but don't decode. CRC's are not checked,
+ * but the Sync word is found prior to count calculation.
+ *
+ * @param frameData     Pointer to the SBC data.
+ *
+ * @param frameBytes    Number of bytes avaiable in the frameData buffer
+ *
+ */
+OI_UINT8 OI_CODEC_SBC_FrameCount(OI_BYTE  *frameData,
+                                 OI_UINT32 frameBytes);
+
+/**
+ * Analyze an SBC frame but don't do the decode.
+ *
+ * @param context       Pointer to a decoder context structure. The same context
+ *                      must be used each time when decoding from the same stream.
+ *
+ * @param frameData     Address of a pointer to the SBC data to decode. This
+ *                      value will be updated to point to the next frame after
+ *                      successful decoding.
+ *
+ * @param frameBytes    Pointer to a UINT32 containing the number of available
+ *                      bytes of frame data. This value will be updated to reflect
+ *                      the number of bytes remaining after a decoding operation.
+ *
+ */
+OI_STATUS OI_CODEC_SBC_SkipFrame(OI_CODEC_SBC_DECODER_CONTEXT *context,
+                                 const OI_BYTE **frameData,
+                                 OI_UINT32 *frameBytes);
+
+/* Common functions */
+
+/**
+  Calculate the frame length.
+
+  @param frame The frame whose length to calculate
+
+  @return the length of an individual encoded frame in
+  bytes
+  */
+OI_UINT16 OI_CODEC_SBC_CalculateFramelen(OI_CODEC_SBC_FRAME_INFO *frame);
+
+
+/**
+ * Calculate the maximum bitpool size that fits within a given frame length.
+ *
+ * @param frame     The frame to calculate the bitpool size for
+ * @param frameLen  The frame length to fit the bitpool to
+ *
+ * @return the maximum bitpool that will fit in the specified frame length
+ */
+OI_UINT16 OI_CODEC_SBC_CalculateBitpool(OI_CODEC_SBC_FRAME_INFO *frame,
+                                        OI_UINT16 frameLen);
+
+/**
+  Calculate the bit rate.
+
+  @param frame The frame whose bit rate to calculate
+
+  @return the approximate bit rate in bits per second,
+  assuming that stream parameters are constant
+  */
+OI_UINT32 OI_CODEC_SBC_CalculateBitrate(OI_CODEC_SBC_FRAME_INFO *frame);
+
+/**
+  Calculate decoded audio data length for one frame.
+
+  @param frame The frame whose audio data length to calculate
+
+  @return length of decoded audio data for a
+  single frame, in bytes
+  */
+OI_UINT16 OI_CODEC_SBC_CalculatePcmBytes(OI_CODEC_SBC_COMMON_CONTEXT *common);
+
+/**
+ * Get the codec version text.
+ *
+ * @return  pointer to text string containing codec version text
+ *
+ */
+OI_CHAR *OI_CODEC_Version(void);
+
+
+/**
+@}
+
+@addtogroup codec_internal
+@{
+*/
+
+extern const OI_CHAR* const OI_CODEC_SBC_FreqText[];
+extern const OI_CHAR* const OI_CODEC_SBC_ModeText[];
+extern const OI_CHAR* const OI_CODEC_SBC_SubbandsText[];
+extern const OI_CHAR* const OI_CODEC_SBC_BlocksText[];
+extern const OI_CHAR* const OI_CODEC_SBC_AllocText[];
+
+/**
+@}
+
+@addtogroup codec_lib
+@{
+*/
+
+#ifdef OI_DEBUG
+void OI_CODEC_SBC_DumpConfig(OI_CODEC_SBC_FRAME_INFO *frameInfo);
+#else
+#define OI_CODEC_SBC_DumpConfig(f)
+#endif
+
+/**
+@}
+*/
+
+#ifdef __cplusplus
+}
+#endif
+
+
+#endif /* _OI_CODEC_SBC_CORE_H */
+
+
diff --git a/rtkbt/code/bt/embdrv/sbc/decoder/include/oi_codec_sbc_private.h b/rtkbt/code/bt/embdrv/sbc/decoder/include/oi_codec_sbc_private.h
new file mode 100755
index 0000000..d7489e7
--- /dev/null
+++ b/rtkbt/code/bt/embdrv/sbc/decoder/include/oi_codec_sbc_private.h
@@ -0,0 +1,229 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 The Android Open Source Project
+ *  Copyright 2003 - 2004 Open Interface North America, Inc. All rights reserved.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+#ifndef _OI_CODEC_SBC_PRIVATE_H
+#define _OI_CODEC_SBC_PRIVATE_H
+
+/**********************************************************************************
+  $Revision: #1 $
+***********************************************************************************/
+
+/**
+@file
+Function prototypes and macro definitions used internally by the codec.
+
+@ingroup codec_internal
+*/
+
+/**
+@addtogroup codec_internal
+@{
+*/
+
+#ifdef USE_RESTRICT_KEYWORD
+#define RESTRICT restrict
+#else
+#define RESTRICT
+#endif
+
+#ifdef CODEC_DEBUG
+#include <stdio.h>
+#define ERROR(x) do { printf x; printf("\n"); } while (0)
+#else
+#define ERROR(x)
+#endif
+
+#ifdef TRACE_EXECUTION
+#define TRACE(x) do { printf x; printf("\n"); } while (0)
+#else
+#define TRACE(x)
+#endif
+
+#ifndef PRIVATE
+#define PRIVATE
+#endif
+
+#ifndef INLINE
+#define INLINE
+#endif
+
+#include "oi_assert.h"
+#include "oi_codec_sbc.h"
+
+#ifndef OI_SBC_SYNCWORD
+#define OI_SBC_SYNCWORD 0x9c
+#endif
+
+#ifndef DIVIDE
+#define DIVIDE(a, b) ((a) / (b))
+#endif
+
+typedef union {
+    OI_UINT8 uint8[SBC_MAX_BANDS];
+    OI_UINT32 uint32[SBC_MAX_BANDS / 4];
+} BITNEED_UNION1;
+
+typedef union {
+    OI_UINT8 uint8[2 * SBC_MAX_BANDS];
+    OI_UINT32 uint32[2 * SBC_MAX_BANDS / 4];
+} BITNEED_UNION2;
+
+static const OI_UINT16 freq_values[] =    { 16000, 32000, 44100, 48000 };
+static const OI_UINT8 block_values[] =    { 4, 8, 12, 16 };
+static const OI_UINT8 channel_values[] =  { 1, 2, 2, 2 };
+static const OI_UINT8 band_values[] =     { 4, 8 };
+
+
+#define TEST_MODE_SENTINEL "OINA"
+#define TEST_MODE_SENTINEL_LENGTH 4
+
+/** Used internally. */
+typedef struct {
+    union {
+        const OI_UINT8 *r;
+        OI_UINT8 *w;
+    } ptr;
+    OI_UINT32 value;
+    OI_UINT bitPtr;
+} OI_BITSTREAM;
+
+
+#define VALID_INT16(x) (((x) >= OI_INT16_MIN) && ((x) <= OI_INT16_MAX))
+#define VALID_INT32(x) (((x) >= OI_INT32_MIN) && ((x) <= OI_INT32_MAX))
+
+#define DCTII_8_SHIFT_IN 0
+#define DCTII_8_SHIFT_OUT 16-DCTII_8_SHIFT_IN
+
+#define DCTII_8_SHIFT_0 (DCTII_8_SHIFT_OUT)
+#define DCTII_8_SHIFT_1 (DCTII_8_SHIFT_OUT)
+#define DCTII_8_SHIFT_2 (DCTII_8_SHIFT_OUT)
+#define DCTII_8_SHIFT_3 (DCTII_8_SHIFT_OUT)
+#define DCTII_8_SHIFT_4 (DCTII_8_SHIFT_OUT)
+#define DCTII_8_SHIFT_5 (DCTII_8_SHIFT_OUT)
+#define DCTII_8_SHIFT_6 (DCTII_8_SHIFT_OUT-1)
+#define DCTII_8_SHIFT_7 (DCTII_8_SHIFT_OUT-2)
+
+#define DCT_SHIFT 15
+
+#define DCTIII_4_SHIFT_IN 2
+#define DCTIII_4_SHIFT_OUT 15
+
+#define DCTIII_8_SHIFT_IN 3
+#define DCTIII_8_SHIFT_OUT 14
+
+OI_UINT computeBitneed(OI_CODEC_SBC_COMMON_CONTEXT *common,
+                              OI_UINT8 *bitneeds,
+                              OI_UINT ch,
+                              OI_UINT *preferredBitpool);
+
+void oneChannelBitAllocation(OI_CODEC_SBC_COMMON_CONTEXT *common,
+                                    BITNEED_UNION1 *bitneeds,
+                                    OI_UINT ch,
+                                    OI_UINT bitcount);
+
+
+OI_INT adjustToFitBitpool(const OI_UINT bitpool,
+                                 OI_UINT32 *bitneeds,
+                                 const OI_UINT subbands,
+                                 OI_UINT bitcount,
+                                 OI_UINT *excess);
+
+INLINE OI_INT allocAdjustedBits(OI_UINT8 *dest,
+                                OI_INT bits,
+                                OI_INT excess);
+
+INLINE OI_INT allocExcessBits(OI_UINT8 *dest,
+                              OI_INT excess);
+
+PRIVATE OI_UINT32 internal_CalculateBitrate(OI_CODEC_SBC_FRAME_INFO *frame);
+
+PRIVATE OI_UINT16 internal_CalculateFramelen(OI_CODEC_SBC_FRAME_INFO *frame);
+
+void monoBitAllocation(OI_CODEC_SBC_COMMON_CONTEXT *common);
+
+typedef void (*BIT_ALLOC)(OI_CODEC_SBC_COMMON_CONTEXT *common);
+
+PRIVATE OI_STATUS internal_DecodeRaw(OI_CODEC_SBC_DECODER_CONTEXT *context,
+                                     OI_UINT8 bitpool,
+                                     const OI_BYTE **frameData,
+                                     OI_UINT32 *frameBytes,
+                                     OI_INT16 *pcmData,
+                                     OI_UINT32 *pcmBytes);
+
+INLINE OI_STATUS internal_DecoderReset(OI_CODEC_SBC_DECODER_CONTEXT *context,
+                                       OI_UINT32 *decoderData,
+                                       OI_UINT32 decoderDataBytes,
+                                       OI_BYTE maxChannels,
+                                       OI_BYTE pcmStride,
+                                       OI_BOOL enhanced);
+
+INLINE OI_UINT16 OI_SBC_CalculateFrameAndHeaderlen(OI_CODEC_SBC_FRAME_INFO *frame, OI_UINT *headerLen_);
+
+PRIVATE OI_UINT32 OI_SBC_MaxBitpool(OI_CODEC_SBC_FRAME_INFO *frame);
+
+PRIVATE void OI_SBC_ComputeBitAllocation(OI_CODEC_SBC_COMMON_CONTEXT *frame);
+PRIVATE OI_UINT8 OI_SBC_CalculateChecksum(OI_CODEC_SBC_FRAME_INFO *frame, OI_BYTE const *data);
+
+/* Transform functions */
+PRIVATE void shift_buffer(SBC_BUFFER_T *dest, SBC_BUFFER_T *src, OI_UINT wordCount);
+PRIVATE void cosineModulateSynth4(SBC_BUFFER_T * RESTRICT out, OI_INT32 const * RESTRICT in);
+PRIVATE void SynthWindow40_int32_int32_symmetry_with_sum(OI_INT16 *pcm, SBC_BUFFER_T buffer[80], OI_UINT strideShift);
+
+INLINE void dct3_4(OI_INT32 * RESTRICT out, OI_INT32 const * RESTRICT in);
+PRIVATE void analyze4_generated(SBC_BUFFER_T analysisBuffer[RESTRICT 40],
+                                OI_INT16 *pcm,
+                                OI_UINT strideShift,
+                                OI_INT32 subband[4]);
+
+INLINE void dct3_8(OI_INT32 * RESTRICT out, OI_INT32 const * RESTRICT in);
+
+PRIVATE void analyze8_generated(SBC_BUFFER_T analysisBuffer[RESTRICT 80],
+                                OI_INT16 *pcm,
+                                OI_UINT strideShift,
+                                OI_INT32 subband[8]);
+
+#ifdef SBC_ENHANCED
+PRIVATE void analyze8_enhanced_generated(SBC_BUFFER_T analysisBuffer[RESTRICT 112],
+                                         OI_INT16 *pcm,
+                                         OI_UINT strideShift,
+                                         OI_INT32 subband[8]);
+#endif
+
+/* Decoder functions */
+
+INLINE  void OI_SBC_ReadHeader(OI_CODEC_SBC_COMMON_CONTEXT *common, const OI_BYTE *data);
+PRIVATE void OI_SBC_ReadScalefactors(OI_CODEC_SBC_COMMON_CONTEXT *common, const OI_BYTE *b, OI_BITSTREAM *bs);
+PRIVATE void OI_SBC_ReadSamples(OI_CODEC_SBC_DECODER_CONTEXT *common, OI_BITSTREAM *ob);
+PRIVATE void OI_SBC_ReadSamplesJoint(OI_CODEC_SBC_DECODER_CONTEXT *common, OI_BITSTREAM *global_bs);
+PRIVATE void OI_SBC_SynthFrame(OI_CODEC_SBC_DECODER_CONTEXT *context, OI_INT16 *pcm, OI_UINT start_block, OI_UINT nrof_blocks);
+INLINE OI_INT32 OI_SBC_Dequant(OI_UINT32 raw, OI_UINT scale_factor, OI_UINT bits);
+PRIVATE OI_BOOL OI_SBC_ExamineCommandPacket(OI_CODEC_SBC_DECODER_CONTEXT *context, const OI_BYTE *data, OI_UINT32 len);
+PRIVATE void OI_SBC_GenerateTestSignal(OI_INT16 pcmData[][2], OI_UINT32 sampleCount);
+
+PRIVATE void OI_SBC_ExpandFrameFields(OI_CODEC_SBC_FRAME_INFO *frame);
+PRIVATE OI_STATUS OI_CODEC_SBC_Alloc(OI_CODEC_SBC_COMMON_CONTEXT *common,
+                                     OI_UINT32 *codecDataAligned,
+                                     OI_UINT32 codecDataBytes,
+                                     OI_UINT8 maxChannels,
+                                     OI_UINT8 pcmStride);
+/**
+@}
+*/
+
+#endif /* _OI_CODEC_SBC_PRIVATE_H */
+
diff --git a/rtkbt/code/bt/embdrv/sbc/decoder/include/oi_common.h b/rtkbt/code/bt/embdrv/sbc/decoder/include/oi_common.h
new file mode 100755
index 0000000..c4169f9
--- /dev/null
+++ b/rtkbt/code/bt/embdrv/sbc/decoder/include/oi_common.h
@@ -0,0 +1,43 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 The Android Open Source Project
+ *  Copyright 2002 - 2004 Open Interface North America, Inc. All rights reserved.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+#ifndef _OI_COMMON_H
+#define _OI_COMMON_H
+/**
+ * @file
+ *
+ * This file is used to group commonly used BLUEmagic 3.0 software
+ * header files.
+ *
+ * This file should be included in application source code along with the header
+ * files for the specific modules of the protocol stack being used.
+ */
+
+/**********************************************************************************
+  $Revision: #1 $
+***********************************************************************************/
+
+#include "oi_bt_spec.h"
+#include "oi_stddefs.h"
+#include "oi_status.h"
+#include "oi_time.h"
+#include "oi_osinterface.h"
+
+
+/*****************************************************************************/
+#endif /* _OI_COMMON_H */
diff --git a/rtkbt/code/bt/embdrv/sbc/decoder/include/oi_cpu_dep.h b/rtkbt/code/bt/embdrv/sbc/decoder/include/oi_cpu_dep.h
new file mode 100755
index 0000000..da7473a
--- /dev/null
+++ b/rtkbt/code/bt/embdrv/sbc/decoder/include/oi_cpu_dep.h
@@ -0,0 +1,505 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 The Android Open Source Project
+ *  Copyright 2002 - 2004 Open Interface North America, Inc. All rights reserved.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+#ifndef _OI_CPU_DEP_H
+#define _OI_CPU_DEP_H
+/**
+ * @file
+ * This file contains definitions for characteristics of the target CPU and
+ * compiler, including primitive data types and endianness.
+ *
+ * This file defines the byte order and primitive data types for various
+ * CPU families. The preprocessor symbol 'CPU' must be defined to be an
+ * appropriate value or this header will generate a compile-time error.
+ *
+ * @note The documentation for this header file uses the x86 family of processors
+ * as an illustrative example for CPU/compiler-dependent data type definitions.
+ * Go to the source code of this header file to see the details of primitive type
+ * definitions for each platform.
+ *
+ * Additional information is available in the @ref data_types_docpage section.
+ */
+
+/**********************************************************************************
+  $Revision: #1 $
+***********************************************************************************/
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/** \addtogroup Misc Miscellaneous APIs */
+/**@{*/
+
+/** @name Definitions indicating family of target OI_CPU_TYPE
+ *  @{
+ */
+
+#define OI_CPU_X86         1 /**< x86 processor family */
+#define OI_CPU_ARM         2 /**< ARM processor family.
+                                  @deprecated Use #OI_CPU_ARM7_LEND or
+                                  #OI_CPU_ARM7_BEND. */
+#define OI_CPU_ARC         3 /**< ARC processor family.
+                                  @deprecated Use #OI_CPU_ARC_LEND or
+                                  #OI_CPU_ARC_BEND. */
+#define OI_CPU_SH3         4 /**< Hitachi SH-3 processor family */
+#define OI_CPU_H8          5 /**< Hitachi H8 processor family */
+#define OI_CPU_MIPS        6 /**< MIPS processor family */
+#define OI_CPU_SPARC       7 /**< SPARC processor family */
+#define OI_CPU_M68000      8 /**< Motorola M68000 processor family */
+#define OI_CPU_PPC         9 /**< PowerPC (PPC) processor family */
+#define OI_CPU_SH4_7750   10 /**< Hitachi SH7750 series in SH-4 processor family */
+#define OI_CPU_SH2        11 /**< Hitachi SH-2 processor family */
+#define OI_CPU_ARM7_LEND  12 /**< ARM7, little-endian */
+#define OI_CPU_ARM7_BEND  13 /**< ARM7, big-endian */
+#define OI_CPU_GDM1202    14 /**< GCT GDM1202 */
+#define OI_CPU_ARC_LEND   15 /**< ARC processor family, little-endian */
+#define OI_CPU_ARC_BEND   16 /**< ARC processor family, big-endian */
+#define OI_CPU_M30833F    17 /**< Mitsubishi M308 processor family */
+#define OI_CPU_CR16C      18 /**< National Semiconductor 16 bit processor family */
+#define OI_CPU_M64111     19 /**< Renesas M64111 processor (M32R family) */
+#define OI_CPU_ARMV5_LEND 20 //*< ARM5, little-endian */
+
+#define OI_CPU_TYPE 12
+
+#ifndef OI_CPU_TYPE
+    #error "OI_CPU_TYPE type not defined"
+#endif
+
+/**@}*/
+
+
+/** @name Definitions indicating byte-wise endianness of target CPU
+ *  @{
+ */
+
+#define OI_BIG_ENDIAN_BYTE_ORDER    0  /**< Multiple-byte values are stored in memory beginning with the most significant byte at the lowest address.  */
+#define OI_LITTLE_ENDIAN_BYTE_ORDER 1  /**< Multiple-byte values are stored in memory beginning with the least significant byte at the lowest address. */
+
+/**@}*/
+
+
+/** @name  CPU/compiler-independent primitive data type definitions
+ *  @{
+ */
+
+typedef int             OI_BOOL;  /**< Boolean values use native integer data type for target CPU. */
+typedef int             OI_INT;   /**< Integer values use native integer data type for target CPU. */
+typedef unsigned int    OI_UINT;  /**< Unsigned integer values use native unsigned integer data type for target CPU. */
+typedef unsigned char   OI_BYTE;  /**< Raw bytes type uses native character data type for target CPU. */
+
+/**@}*/
+
+
+
+/*********************************************************************************/
+
+#if OI_CPU_TYPE==OI_CPU_X86
+
+#define OI_CPU_BYTE_ORDER OI_LITTLE_ENDIAN_BYTE_ORDER  /**< x86 platform byte ordering is little-endian */
+
+/** @name CPU/compiler-dependent primitive data type definitions for x86 processor family
+ *  @{
+ */
+typedef signed char     OI_INT8;   /**< 8-bit signed integer values use native signed character data type for x86 processor. */
+typedef signed short    OI_INT16;  /**< 16-bit signed integer values use native signed short integer data type for x86 processor. */
+typedef signed long     OI_INT32;  /**< 32-bit signed integer values use native signed long integer data type for x86 processor. */
+typedef unsigned char   OI_UINT8;  /**< 8-bit unsigned integer values use native unsigned character data type for x86 processor. */
+typedef unsigned short  OI_UINT16; /**< 16-bit unsigned integer values use native unsigned short integer data type for x86 processor. */
+typedef unsigned long   OI_UINT32; /**< 32-bit unsigned integer values use native unsigned long integer data type for x86 processor. */
+
+typedef OI_UINT32 OI_ELEMENT_UNION; /**< Type for first element of a union to support all data types up to pointer width. */
+
+/**@}*/
+
+#endif
+
+/*********************************************************************************/
+
+#if OI_CPU_TYPE==OI_CPU_ARM
+/* This CPU type is deprecated (removed from use). Instead, use OI_CPU_ARM7_LEND or OI_CPU_ARM7_BEND for
+   little-endian or big-endian configurations of the ARM7, respectively. */
+#error OI_CPU_ARM is deprecated
+#endif
+
+/*********************************************************************************/
+
+#if OI_CPU_TYPE==OI_CPU_ARC
+/* This CPU type is deprecated (removed from use). Instead, use OI_CPU_ARC_LEND or OI_CPU_ARC_BEND for
+   little-endian or big-endian configurations of the ARC, respectively. */
+#error OI_CPU_ARC is deprecated
+#endif
+
+/*********************************************************************************/
+
+#if OI_CPU_TYPE==OI_CPU_SH3
+/* The Hitachi SH C compiler defines _LIT or _BIG, depending on the endianness
+    specified to the compiler on the command line. */
+#if defined(_LIT)
+    #define OI_CPU_BYTE_ORDER OI_LITTLE_ENDIAN_BYTE_ORDER  /**< If _LIT is defined, SH-3 platform byte ordering is little-endian. */
+#elif defined(_BIG)
+    #define OI_CPU_BYTE_ORDER OI_BIG_ENDIAN_BYTE_ORDER     /**< If _BIG is defined, SH-3 platform byte ordering is big-endian. */
+#else
+    #error SH compiler endianness undefined
+#endif
+
+/** @name CPU/compiler-dependent primitive data type definitions for SH-3 processor family
+ *  @{
+ */
+
+typedef signed char     OI_INT8;   /**< 8-bit signed integer values use native signed character data type for SH-3 processor. */
+typedef signed short    OI_INT16;  /**< 16-bit signed integer values use native signed short integer data type for SH-3 processor. */
+typedef signed long     OI_INT32;  /**< 32-bit signed integer values use native signed long integer data type for SH-3 processor. */
+typedef unsigned char   OI_UINT8;  /**< 8-bit unsigned integer values use native unsigned character data type for SH-3 processor. */
+typedef unsigned short  OI_UINT16; /**< 16-bit unsigned integer values use native unsigned short integer data type for SH-3 processor. */
+typedef unsigned long   OI_UINT32; /**< 32-bit unsigned integer values use native unsigned long integer data type for SH-3 processor. */
+
+typedef OI_UINT32 OI_ELEMENT_UNION; /**< Type for first element of a union to support all data types up to pointer width. */
+
+/**@}*/
+
+#endif
+/*********************************************************************************/
+
+#if OI_CPU_TYPE==OI_CPU_SH2
+
+#define OI_CPU_BYTE_ORDER OI_BIG_ENDIAN_BYTE_ORDER /**< SH-2 platform byte ordering is big-endian. */
+
+/** @name  CPU/compiler-dependent primitive data type definitions for SH-2 processor family
+ *  @{
+ */
+
+typedef signed char     OI_INT8;   /**< 8-bit signed integer values use native signed character data type for SH-2 processor. */
+typedef signed short    OI_INT16;  /**< 16-bit signed integer values use native signed short integer data type for SH-2 processor. */
+typedef signed long     OI_INT32;  /**< 32-bit signed integer values use native signed long integer data type for SH-2 processor. */
+typedef unsigned char   OI_UINT8;  /**< 8-bit unsigned integer values use native unsigned character data type for SH-2 processor. */
+typedef unsigned short  OI_UINT16; /**< 16-bit unsigned integer values use native unsigned short integer data type for SH-2 processor. */
+typedef unsigned long   OI_UINT32; /**< 32-bit unsigned integer values use native unsigned long integer data type for SH-2 processor. */
+
+typedef OI_UINT32 OI_ELEMENT_UNION; /**< Type for first element of a union to support all data types up to pointer width. */
+
+/**@}*/
+
+#endif
+/*********************************************************************************/
+
+#if OI_CPU_TYPE==OI_CPU_H8
+#define OI_CPU_BYTE_ORDER OI_BIG_ENDIAN_BYTE_ORDER
+#error basic types not defined
+#endif
+
+/*********************************************************************************/
+
+#if OI_CPU_TYPE==OI_CPU_MIPS
+#define OI_CPU_BYTE_ORDER OI_LITTLE_ENDIAN_BYTE_ORDER
+/** @name  CPU/compiler-dependent primitive data type definitions for MIPS processor family
+ *  @{
+ */
+typedef signed char     OI_INT8;   /**< 8-bit signed integer values use native signed character data type for ARM7 processor. */
+typedef signed short    OI_INT16;  /**< 16-bit signed integer values use native signed short integer data type for ARM7 processor. */
+typedef signed long     OI_INT32;  /**< 32-bit signed integer values use native signed long integer data type for ARM7 processor. */
+typedef unsigned char   OI_UINT8;  /**< 8-bit unsigned integer values use native unsigned character data type for ARM7 processor. */
+typedef unsigned short  OI_UINT16; /**< 16-bit unsigned integer values use native unsigned short integer data type for ARM7 processor. */
+typedef unsigned long   OI_UINT32; /**< 32-bit unsigned integer values use native unsigned long integer data type for ARM7 processor. */
+
+typedef OI_UINT32 OI_ELEMENT_UNION; /**< Type for first element of a union to support all data types up to pointer width. */
+
+/**@}*/
+
+#endif
+
+/*********************************************************************************/
+
+#if OI_CPU_TYPE==OI_CPU_SPARC
+#define OI_CPU_BYTE_ORDER OI_LITTLE_ENDIAN_BYTE_ORDER
+#error basic types not defined
+#endif
+
+/*********************************************************************************/
+
+#if OI_CPU_TYPE==OI_CPU_M68000
+#define OI_CPU_BYTE_ORDER OI_BIG_ENDIAN_BYTE_ORDER  /**< M68000 platform byte ordering is big-endian. */
+
+/** @name  CPU/compiler-dependent primitive data type definitions for M68000 processor family
+ *  @{
+ */
+
+typedef signed char     OI_INT8;   /**< 8-bit signed integer values use native signed character data type for M68000 processor. */
+typedef signed short    OI_INT16;  /**< 16-bit signed integer values use native signed short integer data type for M68000 processor. */
+typedef signed long     OI_INT32;  /**< 32-bit signed integer values use native signed long integer data type for M68000 processor. */
+typedef unsigned char   OI_UINT8;  /**< 8-bit unsigned integer values use native unsigned character data type for M68000 processor. */
+typedef unsigned short  OI_UINT16; /**< 16-bit unsigned integer values use native unsigned short integer data type for M68000 processor. */
+typedef unsigned long   OI_UINT32; /**< 32-bit unsigned integer values use native unsigned long integer data type for M68000 processor. */
+
+typedef OI_UINT32 OI_ELEMENT_UNION; /**< Type for first element of a union to support all data types up to pointer width. */
+
+/**@}*/
+
+#endif
+
+/*********************************************************************************/
+
+#if OI_CPU_TYPE==OI_CPU_PPC
+#define OI_CPU_BYTE_ORDER OI_BIG_ENDIAN_BYTE_ORDER
+
+
+/** @name  CPU/compiler-dependent primitive data type definitions for PPC 8XX processor family
+ *  @{
+ */
+
+typedef signed char     OI_INT8;   /**< 8-bit signed integer values use native signed character data type for PPC8XX processor. */
+typedef signed short    OI_INT16;  /**< 16-bit signed integer values use native signed short integer data type for PPC8XX processor. */
+typedef signed long     OI_INT32;  /**< 32-bit signed integer values use native signed long integer data type for PPC8XX processor. */
+typedef unsigned char   OI_UINT8;  /**< 8-bit unsigned integer values use native unsigned character data type for PPC8XX processor. */
+typedef unsigned short  OI_UINT16; /**< 16-bit unsigned integer values use native unsigned short integer data type for PPC8XX processor. */
+typedef unsigned long   OI_UINT32; /**< 32-bit unsigned integer values use native unsigned long integer data type for PPC8XX processor. */
+
+typedef OI_UINT32 OI_ELEMENT_UNION; /**< Type for first element of a union to support all data types up to pointer width. */
+
+/**@}*/
+
+#endif
+
+/*********************************************************************************/
+
+#if OI_CPU_TYPE==OI_CPU_SH4_7750
+#define OI_CPU_BYTE_ORDER OI_BIG_ENDIAN_BYTE_ORDER  /**< SH7750 platform byte ordering is big-endian. */
+
+/** @name   CPU/compiler-dependent primitive data type definitions for SH7750 processor series of the SH-4 processor family
+ *  @{
+ */
+
+typedef signed char     OI_INT8;   /**< 8-bit signed integer values use native signed character data type for SH7750 SH-4 processor. */
+typedef signed short    OI_INT16;  /**< 16-bit signed integer values use native signed short integer data type for SH7750 SH-4 processor. */
+typedef signed long     OI_INT32;  /**< 32-bit signed integer values use native signed long integer data type for SH7750 SH-4 processor. */
+typedef unsigned char   OI_UINT8;  /**< 8-bit unsigned integer values use native unsigned character data type for SH7750 SH-4 processor. */
+typedef unsigned short  OI_UINT16; /**< 16-bit unsigned integer values use native unsigned short integer data type for SH7750 SH-4 processor. */
+typedef unsigned long   OI_UINT32; /**< 32-bit unsigned integer values use native unsigned long integer data type for SH7750 SH-4 processor. */
+
+typedef OI_UINT32 OI_ELEMENT_UNION; /**< Type for first element of a union to support all data types up to pointer width. */
+
+/**@}*/
+
+#endif
+
+/*********************************************************************************/
+
+#if OI_CPU_TYPE==OI_CPU_ARM7_LEND
+#define OI_CPU_BYTE_ORDER OI_LITTLE_ENDIAN_BYTE_ORDER
+
+/** @name   little-endian CPU/compiler-dependent primitive data type definitions for the ARM7 processor family
+ *  @{
+ */
+
+typedef signed char     OI_INT8;   /**< 8-bit signed integer values use native signed character data type for ARM7 processor. */
+typedef signed short    OI_INT16;  /**< 16-bit signed integer values use native signed short integer data type for ARM7 processor. */
+typedef signed long     OI_INT32;  /**< 32-bit signed integer values use native signed long integer data type for ARM7 processor. */
+typedef unsigned char   OI_UINT8;  /**< 8-bit unsigned integer values use native unsigned character data type for ARM7 processor. */
+typedef unsigned short  OI_UINT16; /**< 16-bit unsigned integer values use native unsigned short integer data type for ARM7 processor. */
+typedef unsigned long   OI_UINT32; /**< 32-bit unsigned integer values use native unsigned long integer data type for ARM7 processor. */
+
+typedef void * OI_ELEMENT_UNION; /**< Type for first element of a union to support all data types up to pointer width. */
+
+/**@}*/
+
+#endif
+
+/*********************************************************************************/
+
+#if OI_CPU_TYPE==OI_CPU_ARM7_BEND
+#define OI_CPU_BYTE_ORDER OI_BIG_ENDIAN_BYTE_ORDER
+/** @name   big-endian CPU/compiler-dependent primitive data type definitions for the ARM7 processor family
+ *  @{
+ */
+typedef signed char     OI_INT8;   /**< 8-bit signed integer values use native signed character data type for ARM7 processor. */
+typedef signed short    OI_INT16;  /**< 16-bit signed integer values use native signed short integer data type for ARM7 processor. */
+typedef signed long     OI_INT32;  /**< 32-bit signed integer values use native signed long integer data type for ARM7 processor. */
+typedef unsigned char   OI_UINT8;  /**< 8-bit unsigned integer values use native unsigned character data type for ARM7 processor. */
+typedef unsigned short  OI_UINT16; /**< 16-bit unsigned integer values use native unsigned short integer data type for ARM7 processor. */
+typedef unsigned long   OI_UINT32; /**< 32-bit unsigned integer values use native unsigned long integer data type for ARM7 processor. */
+
+typedef void * OI_ELEMENT_UNION; /**< Type for first element of a union to support all data types up to pointer width. */
+
+/**@}*/
+
+#endif
+
+/*********************************************************************************/
+
+#if OI_CPU_TYPE==OI_CPU_GDM1202
+#define OI_CPU_BYTE_ORDER OI_BIG_ENDIAN_BYTE_ORDER
+
+typedef signed char     OI_INT8;   /**< 8-bit signed integer. */
+typedef signed short    OI_INT16;  /**< 16-bit signed integer. */
+typedef signed long     OI_INT32;  /**< 32-bit signed integer. */
+typedef unsigned char   OI_UINT8;  /**< 8-bit unsigned integer. */
+typedef unsigned short  OI_UINT16; /**< 16-bit unsigned integer. */
+typedef unsigned long   OI_UINT32; /**< 32-bit unsigned integer. */
+
+typedef OI_UINT32 OI_ELEMENT_UNION; /**< Type for first element of a union to support all data types up to pointer width. */
+
+#endif
+
+/*********************************************************************************/
+
+#if OI_CPU_TYPE==OI_CPU_ARC_LEND
+
+#define OI_CPU_BYTE_ORDER OI_LITTLE_ENDIAN_BYTE_ORDER
+
+/** @name CPU/compiler-dependent primitive data type definitions for ARC processor family
+ *  @{
+ */
+
+typedef signed char     OI_INT8;   /**< 8-bit signed integer values use native signed character data type for ARC processor. */
+typedef signed short    OI_INT16;  /**< 16-bit signed integer values use native signed short integer data type for ARC processor. */
+typedef signed long     OI_INT32;  /**< 32-bit signed integer values use native signed long integer data type for ARC processor. */
+typedef unsigned char   OI_UINT8;  /**< 8-bit unsigned integer values use native unsigned character data type for ARC processor. */
+typedef unsigned short  OI_UINT16; /**< 16-bit unsigned integer values use native unsigned short integer data type for ARC processor. */
+typedef unsigned long   OI_UINT32; /**< 32-bit unsigned integer values use native unsigned long integer data type for ARC processor. */
+
+typedef OI_UINT32 OI_ELEMENT_UNION; /**< Type for first element of a union to support all data types up to pointer width. */
+
+/**@}*/
+#endif
+
+/*********************************************************************************/
+
+#if OI_CPU_TYPE==OI_CPU_ARC_BEND
+
+#define OI_CPU_BYTE_ORDER OI_BIG_ENDIAN_BYTE_ORDER
+
+/** @name CPU/compiler-dependent primitive data type definitions for ARC processor family
+ *  @{
+ */
+
+typedef signed char     OI_INT8;   /**< 8-bit signed integer values use native signed character data type for ARC processor. */
+typedef signed short    OI_INT16;  /**< 16-bit signed integer values use native signed short integer data type for ARC processor. */
+typedef signed long     OI_INT32;  /**< 32-bit signed integer values use native signed long integer data type for ARC processor. */
+typedef unsigned char   OI_UINT8;  /**< 8-bit unsigned integer values use native unsigned character data type for ARC processor. */
+typedef unsigned short  OI_UINT16; /**< 16-bit unsigned integer values use native unsigned short integer data type for ARC processor. */
+typedef unsigned long   OI_UINT32; /**< 32-bit unsigned integer values use native unsigned long integer data type for ARC processor. */
+
+typedef OI_UINT32 OI_ELEMENT_UNION; /**< Type for first element of a union to support all data types up to pointer width. */
+
+/**@}*/
+#endif
+
+/*********************************************************************************/
+
+#if OI_CPU_TYPE==OI_CPU_M30833F
+
+#define OI_CPU_BYTE_ORDER OI_LITTLE_ENDIAN_BYTE_ORDER
+
+/** @name CPU/compiler-dependent primitive data type definitions for Mitsubishi M308 processor family
+ *  @{
+ */
+
+typedef signed char     OI_INT8;   /**< 8-bit signed integer values use native signed character data type for M308 processor. */
+typedef signed short    OI_INT16;  /**< 16-bit signed integer values use native signed short integer data type for M308 processor. */
+typedef signed long     OI_INT32;  /**< 32-bit signed integer values use native signed long integer data type for M308 processor. */
+typedef unsigned char   OI_UINT8;  /**< 8-bit unsigned integer values use native unsigned character data type for M308 processor. */
+typedef unsigned short  OI_UINT16; /**< 16-bit unsigned integer values use native unsigned short integer data type for M308 processor. */
+typedef unsigned long   OI_UINT32; /**< 32-bit unsigned integer values use native unsigned long integer data type for M308 processor. */
+
+typedef OI_UINT32 OI_ELEMENT_UNION; /**< Type for first element of a union to support all data types up to pointer width. */
+
+/**@}*/
+#endif
+
+/*********************************************************************************/
+
+#if OI_CPU_TYPE==OI_CPU_CR16C
+
+#define OI_CPU_BYTE_ORDER OI_LITTLE_ENDIAN_BYTE_ORDER
+
+/** @name CPU/compiler-dependent primitive data type definitions for National Semicnductor processor family
+ *  @{
+ */
+
+typedef signed char     OI_INT8;   /**< 8-bit signed integer values use native signed character data type for CR16C processor. */
+typedef signed short    OI_INT16;  /**< 16-bit signed integer values use native signed short integer data type for CR16C processor. */
+typedef signed long     OI_INT32;  /**< 32-bit signed integer values use native signed long integer data type for CR16C processor. */
+typedef unsigned char   OI_UINT8;  /**< 8-bit unsigned integer values use native unsigned character data type for CR16C processor. */
+typedef unsigned short  OI_UINT16; /**< 16-bit unsigned integer values use native unsigned short integer data type for CR16C processor. */
+typedef unsigned long   OI_UINT32; /**< 32-bit unsigned integer values use native unsigned long integer data type for CR16C processor. */
+
+typedef OI_UINT32 OI_ELEMENT_UNION; /**< Type for first element of a union to support all data types up to pointer width. */
+
+/**@}*/
+#endif
+
+/*********************************************************************************/
+
+#if OI_CPU_TYPE==OI_CPU_M64111
+
+#define OI_CPU_BYTE_ORDER OI_BIG_ENDIAN_BYTE_ORDER
+
+/** @name CPU/compiler-dependent primitive data type definitions for Renesas M32R processor family
+ *  @{
+ */
+
+typedef signed char     OI_INT8;   /**< 8-bit signed integer values use native signed character data type for M64111 processor. */
+typedef signed short    OI_INT16;  /**< 16-bit signed integer values use native signed short integer data type for M64111 processor. */
+typedef signed long     OI_INT32;  /**< 32-bit signed integer values use native signed long integer data type for M64111 processor. */
+typedef unsigned char   OI_UINT8;  /**< 8-bit unsigned integer values use native unsigned character data type for M64111 processor. */
+typedef unsigned short  OI_UINT16; /**< 16-bit unsigned integer values use native unsigned short integer data type for M64111 processor. */
+typedef unsigned long   OI_UINT32; /**< 32-bit unsigned integer values use native unsigned long integer data type for M64111 processor. */
+
+typedef OI_UINT32 OI_ELEMENT_UNION; /**< Type for first element of a union to support all data types up to pointer width. */
+
+/**@}*/
+#endif
+
+/*********************************************************************************/
+
+#if OI_CPU_TYPE==OI_CPU_ARMV5_LEND
+#define OI_CPU_BYTE_ORDER OI_LITTLE_ENDIAN_BYTE_ORDER
+
+/** @name   little-endian CPU/compiler-dependent primitive data type definitions for the ARM7 processor family
+ *  @{
+ */
+
+typedef signed char     OI_INT8;   /**< 8-bit signed integer values use native signed character data type for ARM7 processor. */
+typedef signed short    OI_INT16;  /**< 16-bit signed integer values use native signed short integer data type for ARM7 processor. */
+typedef signed long     OI_INT32;  /**< 32-bit signed integer values use native signed long integer data type for ARM7 processor. */
+typedef unsigned char   OI_UINT8;  /**< 8-bit unsigned integer values use native unsigned character data type for ARM7 processor. */
+typedef unsigned short  OI_UINT16; /**< 16-bit unsigned integer values use native unsigned short integer data type for ARM7 processor. */
+typedef unsigned long   OI_UINT32; /**< 32-bit unsigned integer values use native unsigned long integer data type for ARM7 processor. */
+
+typedef OI_UINT32 OI_ELEMENT_UNION; /**< Type for first element of a union to support all data types up to pointer width. */
+
+/**@}*/
+
+#endif
+
+/*********************************************************************************/
+
+
+#ifndef OI_CPU_BYTE_ORDER
+    #error "Byte order (endian-ness) not defined"
+#endif
+
+
+/**@}*/
+
+#ifdef __cplusplus
+}
+#endif
+
+/*********************************************************************************/
+#endif /* _OI_CPU_DEP_H */
diff --git a/rtkbt/code/bt/embdrv/sbc/decoder/include/oi_modules.h b/rtkbt/code/bt/embdrv/sbc/decoder/include/oi_modules.h
new file mode 100755
index 0000000..a0b68dd
--- /dev/null
+++ b/rtkbt/code/bt/embdrv/sbc/decoder/include/oi_modules.h
@@ -0,0 +1,171 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 The Android Open Source Project
+ *  Copyright 2002 - 2004 Open Interface North America, Inc. All rights reserved.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+#ifndef _OI_MODULES_H
+#define _OI_MODULES_H
+/**
+ * @file
+ *
+ * Enumeration type defining the inidivual stack components.
+ *
+ */
+
+/**********************************************************************************
+  $Revision: #1 $
+***********************************************************************************/
+
+
+/** \addtogroup Misc Miscellaneous APIs */
+/**@{*/
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/**
+ * This enumeration lists constants for referencing the components of
+ * the BLUEmagic 3.0 protocol stack, profiles, and other functionalities.
+ *
+ * In order to distinguish types of modules, items are grouped with markers to
+ * delineate start and end of the groups
+ *
+ * The module type is used for various purposes:
+ *      identification in debug print statements
+ *      access to initialization flags
+ *      access to the configuration table
+ */
+
+typedef enum {
+    /* profiles and protocols  --> Updates to oi_debug.c and oi_config_table.c */
+
+                                /*   XX --> Keep Enum values up-to-date! */
+    OI_MODULE_AT,               /**< 00 AT command processing */
+    OI_MODULE_A2DP,             /**< 01 Advanced Audio Distribution Profile */
+    OI_MODULE_AVCTP,            /**< 02 Audio-Visual Control Transport Profile */
+    OI_MODULE_AVDTP,            /**< 03 Audio-Visual Distribution Protocol */
+    OI_MODULE_AVRCP,            /**< 04 Audio-Visual Remote Control Profile */
+    OI_MODULE_BIP_CLI,          /**< 05 Basic Imaging Profile protocol client */
+    OI_MODULE_BIP_SRV,          /**< 06 Basic Imaging Profile protocol server */
+    OI_MODULE_BNEP,             /**< 07 Bluetooth Network Encapsulation Protocol */
+    OI_MODULE_BPP_SENDER,       /**< 08 Basic Printing Profile */
+    OI_MODULE_BPP_PRINTER,      /**< 09 Basic Printing Profile */
+    OI_MODULE_CTP,              /**< 10 Cordless Telephony Profile */
+    OI_MODULE_DUN,              /**< 11 Dial-Up Networking Profile */
+    OI_MODULE_FAX,              /**< 12 Fax Profile */
+    OI_MODULE_FTP_CLI,          /**< 13 File Transfer Profile protocol client */
+    OI_MODULE_FTP_SRV,          /**< 14 File Transfer Profile protocol server */
+    OI_MODULE_HANDSFREE,        /**< 15 Hands-Free Profile */
+    OI_MODULE_HANDSFREE_AG,     /**< 16 Hands-Free Profile */
+    OI_MODULE_HCRP_CLI,         /**< 17 Hardcopy Cable Replacement Profile */
+    OI_MODULE_HCRP_SRV,         /**< 18 Hardcopy Cable Replacement Profile */
+    OI_MODULE_HEADSET,          /**< 19 Headset Profile */
+    OI_MODULE_HEADSET_AG,       /**< 20 Headset Profile */
+    OI_MODULE_HID,              /**< 21 Human Interface Device profile */
+    OI_MODULE_INTERCOM,         /**< 22 Intercom Profile */
+    OI_MODULE_OBEX_CLI,         /**< 23 OBEX protocol client, Generic Object Exchange Profile */
+    OI_MODULE_OBEX_SRV,         /**< 24 OBEX protocol server, Generic Object Exchange Profile */
+    OI_MODULE_OPP_CLI,          /**< 25 Object Push Profile protocol client */
+    OI_MODULE_OPP_SRV,          /**< 26 Object Push Profile protocol server */
+    OI_MODULE_PAN,              /**< 27 PAN profile */
+    OI_MODULE_PBAP_CLI,         /**< 28 Phonebook Access Profile client */
+    OI_MODULE_PBAP_SRV,         /**< 29 Phonebook Access Profile server */
+    OI_MODULE_SAP_CLI,          /**< 30 SIM Access Profile */
+    OI_MODULE_SAP_SRV,          /**< 31 SIM Access Profile */
+    OI_MODULE_SPP,              /**< 32 Serial Port Profile */
+    OI_MODULE_SYNC_CLI,         /**< 33 Synchronization Profile */
+    OI_MODULE_SYNC_SRV,         /**< 34 Synchronization Profile */
+    OI_MODULE_SYNC_CMD_CLI,     /**< 35 Synchronization Profile */
+    OI_MODULE_SYNC_CMD_SRV,     /**< 36 Synchronization Profile */
+    OI_MODULE_SYNCML,           /**< 37 SyncML Profile */
+    OI_MODULE_TCS,              /**< 38 TCS Binary */
+    OI_MODULE_VDP,              /**< 39 Video Distribution Profile */
+
+    /* corestack components   --> Updates to oi_debug.c and oi_config_table.c */
+
+    OI_MODULE_COMMON_CONFIG,    /**< 40 Common configuration, module has no meaning other than for config struct */
+    OI_MODULE_CMDCHAIN,         /**< 41 Command chaining utility */
+    OI_MODULE_DISPATCH,         /**< 42 Dispatcher */
+    OI_MODULE_DATAELEM,         /**< 43 Data Elements, marshaller */
+    OI_MODULE_DEVMGR,           /**< 44 Device Manager */
+    OI_MODULE_DEVMGR_MODES,     /**< 45 Device Manager connectability/discoverability modes */
+    OI_MODULE_HCI,              /**< 46 Host Controller Interface command layer */
+    OI_MODULE_L2CAP,            /**< 47 L2CAP */
+    OI_MODULE_MEMMGR,           /**< 48 modules that do memory management */
+    OI_MODULE_POLICYMGR,        /**< 49 Policy Manager */
+    OI_MODULE_RFCOMM,           /**< 50 RFCOMM */
+    OI_MODULE_RFCOMM_SD,        /**< 51 RFCOMM Service discovery */
+    OI_MODULE_SDP_CLI,          /**< 52 Service Discovery Protocol client */
+    OI_MODULE_SDP_SRV,          /**< 53 Service Discovery Protocol server */
+    OI_MODULE_SDPDB,            /**< 54 Service Discovery Protocol database */
+    OI_MODULE_SECMGR,           /**< 55 Security Manager */
+    OI_MODULE_SNIFFLOG,         /**< 56 sniff log */
+    OI_MODULE_SUPPORT,          /**< 57 support functions, including CThru Dispatcher, time functions, and stack initialization */
+    OI_MODULE_TRANSPORT,        /**< 58 transport layer between HCI command layer and driver */
+    OI_MODULE_TEST,             /**< 59 used to debug output from internal test programs */
+    OI_MODULE_XML,              /**< 60 XML/CSS parser */
+
+    OI_MODULE_DI,               /**< 61 Device Identification Profile */
+
+    // bhapi components  --> Updates to oi_debug.c
+
+    OI_MODULE_BHAPI,            /**< 62 BLUEmagic Host API generic */
+    OI_MODULE_BHCLI,            /**< 63 BLUEmagic Host API client side */
+    OI_MODULE_BHSRV,            /**< 64 BLUEmagic Host API server side */
+    OI_MODULE_MSGQ,             /**< 65 module that handles message queuing */
+    OI_MODULE_BHAPI_TRANSPORT,  /**< 66 module that handles message queuing */
+    OI_MODULE_BLST_SRV,         /**< 67 module that provides server side BHAPI Lightweight Serial Transport */
+    OI_MODULE_BLST_CLI,         /**< 68 module that provides client side BHAPI Lightweight Serial Transport */
+
+    // OEM files --> Updates to oi_debug.c
+    OI_MODULE_OEM,              /**< 69 Application Memory allocation */
+
+    // Application glue --> Updates to oi_debug.c
+    OI_MODULE_APP,              /**< 70 Application Memory allocation */
+
+    /* various pieces of code depend on these last 2 elements occuring in a specific order:
+       OI_MODULE_ALL must be the 2nd to last element
+       OI_MODULE_UNKNOWN must be the last element
+       */
+    OI_MODULE_ALL,              /**< 71 special value identifying all modules - used for control of debug print statements */
+    OI_MODULE_UNKNOWN           /**< 72 special value - used for debug print statements */
+} OI_MODULE;
+
+/**
+ * This constant is the number of actual modules in the list.  ALL and UNKNOWN are
+ * special values that are not actually modules.
+ * Used for debug print and memmgr profiling
+ */
+#define OI_NUM_MODULES  OI_MODULE_ALL
+
+
+/**
+ * This constant is the number of profile and core components.  It is used to size
+ * the initialization and configuration tables.
+ */
+#define OI_NUM_STACK_MODULES    OI_MODULE_BHAPI
+
+
+#ifdef __cplusplus
+}
+#endif
+
+/**@}*/
+
+#endif /* _OI_MODULES_H */
+
diff --git a/rtkbt/code/bt/embdrv/sbc/decoder/include/oi_osinterface.h b/rtkbt/code/bt/embdrv/sbc/decoder/include/oi_osinterface.h
new file mode 100755
index 0000000..7868041
--- /dev/null
+++ b/rtkbt/code/bt/embdrv/sbc/decoder/include/oi_osinterface.h
@@ -0,0 +1,197 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 The Android Open Source Project
+ *  Copyright 2002 - 2004 Open Interface North America, Inc. All rights reserved.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+#ifndef _OI_OSINTERFACE_H
+#define _OI_OSINTERFACE_H
+/**
+ @file
+ * This file provides the platform-independent interface for functions for which
+ * implementation is platform-specific.
+ *
+ * The functions in this header file define the operating system or hardware
+ * services needed by the BLUEmagic 3.0 protocol stack. The
+ * actual implementation of these services is platform-dependent.
+ *
+ */
+
+/**********************************************************************************
+  $Revision: #1 $
+***********************************************************************************/
+
+#include "oi_stddefs.h"
+#include "oi_time.h"
+#include "oi_status.h"
+#include "oi_modules.h"
+
+/** \addtogroup Misc Miscellaneous APIs */
+/**@{*/
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/**
+ * Terminates execution.
+ *
+ * @param reason  Reason for termination
+ */
+void OI_FatalError(OI_STATUS reason);
+
+/**
+ * This function logs an error.
+ *
+ * When built for release mode, BLUEmagic 3 errors are logged to
+ * this function. (in debug mode, errors are logged via
+ * OI_Print()).
+ *
+ * @param module Module in which the error was detected (see
+ *                oi_modules.h)
+ * @param lineno Line number of the C file OI_SLOG_ERROR called
+ * @param status Status code associated with the error event
+ */
+void OI_LogError(OI_MODULE module, OI_INT lineno, OI_STATUS status);
+
+/**
+ * This function initializes the debug code handling.
+ *
+ * When built for debug mode, this function performs platform
+ * dependent initialization to handle message codes passed in
+ * via OI_SetMsgCode().
+ */
+void OI_InitDebugCodeHandler(void);
+
+
+/**
+ * This function reads the time from the real time clock.
+ *
+ * All timing in BM3 is relative, typically a granularity
+ * of 5 or 10 msecs is adequate.
+ *
+ * @param[out] now  Pointer to the buffer to which the current
+ *       time will be returned
+ */
+void OI_Time_Now(OI_TIME *now);
+
+/**
+ * This function causes the current thread to sleep for the
+ * specified amount of time. This function must be called
+ * without the stack access token.
+ *
+ * @note BM3 corestack and profiles never suspend and never call
+ * OI_Sleep. The use of OI_Sleep is limited to applications and
+ * platform-specific code.
+ *
+ * If your port and applications never use OI_Sleep, this function can be left unimplemented.
+ *
+ * @param milliseconds  Number of milliseconds to sleep
+ */
+void OI_Sleep(OI_UINT32 milliseconds);
+
+
+/**
+ * Defines for message type codes.
+ */
+#define OI_MSG_CODE_APPLICATION               0   /**< Application output */
+#define OI_MSG_CODE_ERROR                     1   /**< Error message output */
+#define OI_MSG_CODE_WARNING                   2   /**< Warning message output */
+#define OI_MSG_CODE_TRACE                     3   /**< User API function trace output */
+#define OI_MSG_CODE_PRINT1                    4   /**< Catagory 1 debug print output */
+#define OI_MSG_CODE_PRINT2                    5   /**< Catagory 2 debug print output */
+#define OI_MSG_CODE_HEADER                    6   /**< Error/Debug output header */
+
+/**
+ * This function is used to indicate the type of text being output with
+ * OI_Print(). For the Linux and Win32 platforms, it will set
+ * the color of the text. Other possible uses could be to insert
+ * HTML style tags, add some other message type indication, or
+ * be completely ignored altogether.
+ *
+ * @param code  OI_MSG_CODE_* indicating setting the message type.
+ */
+void OI_SetMsgCode(OI_UINT8 code);
+
+/**
+ * All output from OI_Printf() and all debug output is sent to OI_Print.
+ * Typically, if the platform has a console, OI_Print() is sent to stdout.
+ * Embedded platforms typically send OI_Print() output to a serial port.
+ *
+ * @param str  String to print
+ */
+void OI_Print(OI_CHAR const *str);
+
+/**
+ *  In cases where OI_Print() is sending output to a logfile in addition to console,
+ *  it is desirable to also put console input into the logfile.
+ *  This function can be called by the console input process.
+ *
+ *  @note This is an optional API which is strictly
+ *  between the platform-specific stack_console and osinterface
+ *  modules. This API need only be implemented on those
+ *  platforms where is serves a useful purpose, e.g., win32.
+ *
+ * @param str  Console input string
+ */
+
+void OI_Print_ConsoleInput(OI_CHAR const *str);
+
+/**
+ *  This function computes the CRC16 of the program image.
+ */
+OI_UINT16  OI_ProgramImageCRC16(void);
+
+/**
+ * Writes an integer to stdout in hex. This macro is intended
+ * for selective use when debugging in small memory
+ * configurations or other times when it is not possible to use
+ * OI_DBGPRINT.
+ *
+ * @param n  the integer to print
+ */
+
+#define OI_Print_Int(n) \
+{ \
+    static const OI_CHAR _digits[] = "0123456789ABCDEF"; \
+    OI_CHAR _buf[9]; \
+    OI_CHAR *_str = &_buf[8]; \
+    OI_UINT32 _i = n; \
+    *_str = 0; \
+    do { *(--_str) = _digits[(_i & 0xF)]; _i >>= 4; } while (_i); \
+    OI_Print(_str); \
+}
+
+/**
+ *  Application Dynamic Memory allocation.
+ *
+ *  These APIs are provided for application use on those
+ *  platforms which have no dynamic memory support. Memory is
+ *  allocated from the pool-based heap managed by the stack's
+ *  internal memory manager.
+ */
+void *OI_APP_Malloc(OI_INT32 size);
+void OI_APP_Free(void *ptr);
+
+/*****************************************************************************/
+#ifdef __cplusplus
+}
+#endif
+
+/**@}*/
+
+#endif /* _OI_OSINTERFACE_H */
+
diff --git a/rtkbt/code/bt/embdrv/sbc/decoder/include/oi_status.h b/rtkbt/code/bt/embdrv/sbc/decoder/include/oi_status.h
new file mode 100755
index 0000000..868d8dc
--- /dev/null
+++ b/rtkbt/code/bt/embdrv/sbc/decoder/include/oi_status.h
@@ -0,0 +1,579 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 The Android Open Source Project
+ *  Copyright 2002 - 2004 Open Interface North America, Inc. All rights reserved.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+#ifndef _OI_STATUS_H
+#define _OI_STATUS_H
+/**
+ * @file
+ * This file contains status codes for BLUEmagic 3.0 software.
+ */
+
+#include "oi_stddefs.h"
+
+/** \addtogroup Misc Miscellaneous APIs */
+/**@{*/
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+   /** test it **/
+
+/**
+ * OI_STATUS must fit in 16 bits, so status codes can range from 0 to 66535, inclusive.
+ */
+
+typedef enum {
+    OI_STATUS_SUCCESS                      = 0,   /**< function call succeeded alias for #OI_OK */
+    OI_OK                                  = 0,   /**< function call succeeded alias for #OI_STATUS_SUCCESS */
+    OI_STATUS_INVALID_PARAMETERS           = 101, /**< invalid function input parameters */
+    OI_STATUS_NOT_IMPLEMENTED              = 102, /**< attempt to use an unimplemented function */
+    OI_STATUS_NOT_INITIALIZED              = 103, /**< data not initialized */
+    OI_STATUS_NO_RESOURCES                 = 104, /**< generic resource allocation failure status */
+    OI_STATUS_INTERNAL_ERROR               = 105, /**< internal inconsistency */
+    OI_STATUS_OUT_OF_MEMORY                = 106, /**< generally, OI_Malloc failed */
+    OI_ILLEGAL_REENTRANT_CALL              = 107, /**< violation of non-reentrant module policy */
+    OI_STATUS_INITIALIZATION_FAILED        = 108, /**< module initialization failed */
+    OI_STATUS_INITIALIZATION_PENDING       = 109, /**< inititialization not yet complete */
+    OI_STATUS_NO_SCO_SUPPORT               = 110, /**< SCO operation rejected; system not configured for SCO */
+    OI_STATUS_OUT_OF_STATIC_MEMORY         = 111, /**< static malloc failed */
+    OI_TIMEOUT                             = 112, /**< generic timeout */
+    OI_OS_ERROR                            = 113, /**< some operating system error */
+    OI_FAIL                                = 114, /**< generic failure */
+    OI_STRING_FORMAT_ERROR                 = 115, /**< error in VarString formatting string */
+    OI_STATUS_PENDING                      = 116, /**< The operation is pending. */
+    OI_STATUS_INVALID_COMMAND              = 117, /**< The command was invalid. */
+    OI_BUSY_FAIL                           = 118, /**< command rejected due to busy */
+    OI_STATUS_ALREADY_REGISTERED           = 119, /**< The registration has already been performed. */
+    OI_STATUS_NOT_FOUND                    = 120, /**< The referenced resource was not found. */
+    OI_STATUS_NOT_REGISTERED               = 121, /**< not registered */
+    OI_STATUS_NOT_CONNECTED                = 122, /**< not connected */
+    OI_CALLBACK_FUNCTION_REQUIRED          = 123, /**< A callback function parameter was required. */
+    OI_STATUS_MBUF_OVERFLOW                = 124, /**< There is no room to add another buffer to an mbuf. */
+    OI_STATUS_MBUF_UNDERFLOW               = 125, /**< There was an attempt to pull too many bytes from an mbuf. */
+    OI_STATUS_CONNECTION_EXISTS            = 126, /**< connection exists */
+    OI_STATUS_NOT_CONFIGURED               = 127, /**< module not configured */
+    OI_LOWER_STACK_ERROR                   = 128, /**< An error was reported by lower stack API. This is used for embedded platforms. */
+    OI_STATUS_RESET_IN_PROGRESS            = 129, /**< Request failed/rejected because we're busy resetting. */
+    OI_STATUS_ACCESS_DENIED                = 130, /**< Generic access denied error. */
+    OI_STATUS_DATA_ERROR                   = 131, /**< Generic data error. */
+    OI_STATUS_INVALID_ROLE                 = 132, /**< The requested role was invalid. */
+    OI_STATUS_ALREADY_CONNECTED            = 133, /**< The requested connection is already established. */
+    OI_STATUS_PARSE_ERROR                  = 134, /**< Parse error */
+    OI_STATUS_END_OF_FILE                  = 135, /**< End of file */
+    OI_STATUS_READ_ERROR                   = 136, /**< Generic read error */
+    OI_STATUS_WRITE_ERROR                  = 137, /**< Generic write error */
+    OI_STATUS_NEGOTIATION_FAILURE          = 138, /**< Error in negotiation */
+    OI_STATUS_READ_IN_PROGRESS             = 139, /**< A read is already in progress */
+    OI_STATUS_ALREADY_INITIALIZED          = 140, /**< Initialization has already been done */
+    OI_STATUS_STILL_CONNECTED              = 141, /**< The service cannot be shutdown because there are still active connections. */
+    OI_STATUS_MTU_EXCEEDED                 = 142, /**< The packet is too big */
+    OI_STATUS_LINK_TERMINATED              = 143, /**< The link was terminated */
+    OI_STATUS_PIN_CODE_TOO_LONG            = 144, /**< Application gave us a pin code that is too long */
+    OI_STATUS_STILL_REGISTERED             = 145, /**< The service cannot be shutdown because there are still active registrations. */
+    OI_STATUS_SPEC_VIOLATION               = 146, /**< Some application behavior contrary to BT specifications */
+
+
+    OI_STATUS_PSM_ALREADY_REGISTERED       = 402, /**< L2CAP: The specified PSM has already been registered. */
+    OI_STATUS_INVALID_CID                  = 403, /**< L2CAP: CID is invalid or no longer valid (connection terminated) */
+    OI_STATUS_CID_NOT_FOUND                = 404, /**< L2CAP: CID does not represent a current connection */
+    OI_STATUS_CHANNEL_NOT_FOUND            = 406, /**< L2CAP: CID does not represent a current connection */
+    OI_STATUS_PSM_NOT_FOUND                = 407, /**< L2CAP: PSM not found */
+    OI_STATUS_INVALID_STATE                = 408, /**< L2CAP: invalid state */
+    OI_STATUS_WRITE_IN_PROGRESS            = 410, /**< L2CAP: write in progress */
+    OI_STATUS_INVALID_PACKET               = 411, /**< L2CAP: invalid packet */
+    OI_STATUS_SEND_COMPLETE                = 412, /**< L2CAP: send is complete */
+    OI_STATUS_INVALID_HANDLE               = 414, /**< L2CAP: handle is invalid */
+    OI_STATUS_GROUP_FULL                   = 418, /**< L2CAP: No more members can be added to the specified group. */
+    OI_STATUS_DEVICE_ALREADY_IN_GROUP      = 423, /**< L2CAP: The device already exists in the group. */
+    OI_STATUS_DUPLICATE_GROUP              = 425, /**< L2CAP: attempt to add more than one group */
+    OI_STATUS_EMPTY_GROUP                  = 426, /**< L2CAP: group is empty */
+    OI_STATUS_PACKET_NOT_FOUND             = 427, /**< L2CAP: packet not found */
+    OI_STATUS_BUFFER_TOO_SMALL             = 428, /**< L2CAP: The buffer size is too small. */
+    OI_STATUS_IDENTIFIER_NOT_FOUND         = 429, /**< L2CAP: identifier not found */
+
+    OI_L2CAP_DISCONNECT_LOWER_LAYER        = 430, /**< L2CAP: The lower level forced a disconnect. */
+    OI_L2CAP_DISCONNECT_REMOTE_REQUEST     = 431, /**< L2CAP: The remote device requested a disconnect. */
+    OI_L2CAP_GROUP_ADD_CONNECT_FAIL        = 433, /**< L2CAP: Group add connect faiL */
+    OI_L2CAP_GROUP_REMOVE_FAILURE          = 434, /**< L2CAP: Group remove failure */
+    OI_L2CAP_DATA_WRITE_ERROR_LINK_TERM    = 435, /**< L2CAP: Data write error LINK_TERM */
+    OI_L2CAP_DISCONNECT_LOCAL_REQUEST      = 436, /**< L2CAP: Disconnect local request */
+
+    OI_L2CAP_CONNECT_TIMEOUT               = 437, /**< L2CAP: Connect timeout */
+    OI_L2CAP_DISCONNECT_TIMEOUT            = 439, /**< L2CAP: Disconnect timeout */
+    OI_L2CAP_PING_TIMEOUT                  = 440, /**< L2CAP: Ping timeout */
+    OI_L2CAP_GET_INFO_TIMEOUT              = 441, /**< L2CAP: Get info timeout */
+    OI_L2CAP_INVALID_ADDRESS               = 444, /**< L2CAP: Invalid address */
+    OI_L2CAP_CMD_REJECT_RCVD               = 445, /**< L2CAP: remote sent us 'command reject' response */
+
+    OI_L2CAP_CONNECT_BASE                  = 450, /**< L2CAP: Connect base */
+    OI_L2CAP_CONNECT_PENDING               = 451, /**< L2CAP: Connect pending */
+    OI_L2CAP_CONNECT_REFUSED_INVALID_PSM   = 452, /**< L2CAP: Connect refused invalid PSM */
+    OI_L2CAP_CONNECT_REFUSED_SECURITY      = 453, /**< L2CAP: Connect refused security */
+    OI_L2CAP_CONNECT_REFUSED_NO_RESOURCES  = 454, /**< L2CAP: Connect refused no resources */
+
+    OI_L2CAP_CONFIG_BASE                   = 460, /**< L2CAP: Config base */
+    OI_L2CAP_CONFIG_FAIL_INVALID_PARAMETERS= 461, /**< L2CAP: Config fail invalid parameters */
+    OI_L2CAP_CONFIG_FAIL_NO_REASON         = 462, /**< L2CAP: Config fail no reason */
+    OI_L2CAP_CONFIG_FAIL_UNKNOWN_OPTIONS   = 463, /**< L2CAP: Config fail unknown options */
+
+    OI_L2CAP_GET_INFO_BASE                 = 470, /**< L2CAP: Get info base */
+    OI_L2CAP_GET_INFO_NOT_SUPPORTED        = 471, /**< L2CAP: Get info not supported */
+    OI_L2CAP_MTU_EXCEEDED                  = 472, /**< L2CAP: The MTU of the channel was exceeded */
+    OI_L2CAP_INVALID_PSM                   = 482, /**< L2CAP: Invalid PSM */
+    OI_L2CAP_INVALID_MTU                   = 483, /**< L2CAP: Invalid MTU */
+    OI_L2CAP_INVALID_FLUSHTO               = 484, /**< L2CAP: Invalid flush timeout */
+
+    OI_HCI_NO_SUCH_CONNECTION               = 601, /**< HCI: caller specified a non-existent connection handle */
+    OI_HCI_CB_LIST_FULL                     = 603, /**< HCI: callback list is full, cannot attempt to send command */
+    OI_HCI_EVENT_UNDERRUN                   = 605, /**< HCI: parsing event packet, premature end-of-parameters */
+    OI_HCI_UNKNOWN_EVENT_CODE               = 607, /**< HCI: event received - event code is unknown */
+    OI_HCI_BAD_EVENT_PARM_LEN               = 608, /**< HCI: event - parameter length is incorrect */
+    OI_HCI_CMD_QUEUE_FULL                   = 611, /**< HCI: command queue is full */
+    OI_HCI_SHORT_EVENT                      = 612, /**< HCI: event received, missing event code and/or parm len */
+    OI_HCI_TRANSMIT_NOT_READY               = 613, /**< HCI: ACL/SCO transmit request failed - busy or no buffers available */
+    OI_HCI_ORPHAN_SENT_EVENT                = 614, /**< HCI: got spurious 'sent' event from transport layer */
+    OI_HCI_CMD_TABLE_ERROR                  = 615, /**< HCI: inconsistency in the internal command table */
+    OI_HCI_UNKNOWN_CMD_ID                   = 616, /**< HCI: HciApi Command - unknown command id */
+    OI_HCI_UNEXPECTED_EVENT                 = 619, /**< HCI: event received which only occurs in response to our cmd */
+    OI_HCI_EVENT_TABLE_ERROR                = 620, /**< HCI: inconsistency in the internal event table */
+    OI_HCI_EXPECTED_EVENT_TIMOUT            = 621, /**< HCI: timed out waiting for an expected event */
+    OI_HCI_NO_CMD_DESC_FOR_OPCODE           = 622, /**< HCI: event opcode is not known */
+    OI_HCI_INVALID_OPCODE_ERROR             = 623, /**< HCI: command opcode is invalid */
+    OI_HCI_FLOW_CONTROL_DISABLED            = 624, /**< HCI: can not use host flow control APIs if disabled in configuration */
+    OI_HCI_TX_COMPLETE                      = 625, /**< HCI: packet delivery to Host Controler complete */
+    OI_HCI_TX_ERROR                         = 626, /**< HCI: failed to deliver packet to Host Controler */
+    OI_HCI_DEVICE_NOT_INITIALIZED           = 627, /**< HCI: commands from upper layers disallowed until device is up and running */
+    OI_HCI_UNSUPPORTED_COMMAND              = 628, /**< HCI: command requested is not supported by local device */
+    OI_HCI_PASSTHROUGH_ERROR                = 629, /**< HCI: Error processing passthrough command */
+    OI_HCI_PASSTHROUGH_ALREADY_SET          = 630, /**< HCI: Passthrough mode already enabled */
+    OI_HCI_RESET_FAILURE                    = 631, /**< HCI: failed to reset the device/baseband */
+    OI_HCI_TRANSPORT_RESET                  = 632, /**< HCI: some operation failed because of a reset in the transport */
+    OI_HCIERR_HCIIFC_INIT_FAILURE           = 633, /**< HCI: failed to initialize transport layer interface */
+
+    OI_HCIERR_FIRST_ERROR_VALUE                = 701, /**< marker for first HCI protocol error */
+    OI_HCIERR_UNKNOWN_HCI_COMMAND              = 701, /**< HCI: protocol error 0x01 */
+    OI_HCIERR_NO_CONNECTION                    = 702, /**< HCI: protocol error 0x02 */
+    OI_HCIERR_HARDWARE_FAILURE                 = 703, /**< HCI: protocol error 0x03 */
+    OI_HCIERR_PAGE_TIMEOUT                     = 704, /**< HCI: protocol error 0x04 */
+    OI_HCIERR_AUTHENTICATION_FAILURE           = 705, /**< HCI: protocol error 0x05 */
+    OI_HCIERR_KEY_MISSING                      = 706, /**< HCI: protocol error 0x06 */
+    OI_HCIERR_MEMORY_FULL                      = 707, /**< HCI: protocol error 0x07 */
+    OI_HCIERR_CONNECTION_TIMEOUT               = 708, /**< HCI: protocol error 0x08 */
+    OI_HCIERR_MAX_NUM_OF_CONNECTIONS           = 709, /**< HCI: protocol error 0x09 */
+    OI_HCIERR_MAX_NUM_OF_SCO_CONNECTIONS       = 710, /**< HCI: protocol error 0x0A */
+    OI_HCIERR_ACL_CONNECTION_ALREADY_EXISTS    = 711, /**< HCI: protocol error 0x0B */
+    OI_HCIERR_COMMAND_DISALLOWED               = 712, /**< HCI: protocol error 0x0C */
+    OI_HCIERR_HOST_REJECTED_RESOURCES          = 713, /**< HCI: protocol error 0x0D */
+    OI_HCIERR_HOST_REJECTED_SECURITY           = 714, /**< HCI: protocol error 0x0E */
+    OI_HCIERR_HOST_REJECTED_PERSONAL_DEVICE    = 715, /**< HCI: protocol error 0x0F */
+    OI_HCIERR_HOST_TIMEOUT                     = 716, /**< HCI: protocol error 0x10 */
+    OI_HCIERR_UNSUPPORTED                      = 717, /**< HCI: protocol error 0x11 */
+    OI_HCIERR_INVALID_PARAMETERS               = 718, /**< HCI: protocol error 0x12 */
+    OI_HCIERR_OTHER_END_USER_DISCONNECT        = 719, /**< HCI: protocol error 0x13 */
+    OI_HCIERR_OTHER_END_LOW_RESOURCES          = 720, /**< HCI: protocol error 0x14 */
+    OI_HCIERR_OTHER_END_POWERING_OFF           = 721, /**< HCI: protocol error 0x15 */
+    OI_HCIERR_CONNECTION_TERMINATED_LOCALLY    = 722, /**< HCI: protocol error 0x16 */
+    OI_HCIERR_REPEATED_ATTEMPTS                = 723, /**< HCI: protocol error 0x17 */
+    OI_HCIERR_PAIRING_NOT_ALLOWED              = 724, /**< HCI: protocol error 0x18 */
+    OI_HCIERR_UNKNOWN_LMP_PDU                  = 725, /**< HCI: protocol error 0x19 */
+    OI_HCIERR_UNSUPPORTED_REMOTE_FEATURE       = 726, /**< HCI: protocol error 0x1A */
+    OI_HCIERR_SCO_OFFSET_REJECTED              = 727, /**< HCI: protocol error 0x1B */
+    OI_HCIERR_SCO_INTERVAL_REJECTED            = 728, /**< HCI: protocol error 0x1C */
+    OI_HCIERR_SCO_AIR_MODE_REJECTED            = 729, /**< HCI: protocol error 0x1D */
+    OI_HCIERR_INVALID_LMP_PARMS                = 730, /**< HCI: protocol error 0x1E */
+    OI_HCIERR_UNSPECIFIED_ERROR                = 731, /**< HCI: protocol error 0x1F */
+    OI_HCIERR_UNSUPPORTED_LMP_PARAMETERS       = 732, /**< HCI: protocol error 0x20 */
+    OI_HCIERR_ROLE_CHANGE_NOT_ALLOWED          = 733, /**< HCI: protocol error 0x21 */
+    OI_HCIERR_LMP_RESPONSE_TIMEOUT             = 734, /**< HCI: protocol error 0x22 */
+    OI_HCIERR_LMP_ERROR_TRANS_COLLISION        = 735, /**< HCI: protocol error 0x23 */
+    OI_HCIERR_LMP_PDU_NOT_ALLOWED              = 736, /**< HCI: protocol error 0x24 */
+    OI_HCIERR_ENCRYPTION_MODE_NOT_ACCEPTABLE   = 737, /**< HCI: protocol error 0x25 */
+    OI_HCIERR_UNIT_KEY_USED                    = 738, /**< HCI: protocol error 0x26 */
+    OI_HCIERR_QOS_NOT_SUPPORTED                = 739, /**< HCI: protocol error 0x27 */
+    OI_HCIERR_INSTANT_PASSED                   = 740, /**< HCI: protocol error 0x28 */
+    OI_HCIERR_UNIT_KEY_PAIRING_UNSUPPORTED     = 741, /**< HCI: protocol error 0x29 */
+    OI_HCIERR_DIFFERENT_TRANS_COLLISION        = 742, /**< HCI: protocol error 0x2A */
+    OI_HCIERR_RESERVED_2B                      = 743, /**< HCI: protocol error 0x2B */
+    OI_HCIERR_QOS_UNACCEPTABLE_PARAMETER       = 744, /**< HCI: protocol error 0x2C */
+    OI_HCIERR_QOS_REJECTED                     = 745, /**< HCI: protocol error 0x2D */
+    OI_HCIERR_CHANNEL_CLASSIFICATION_NS        = 746, /**< HCI: protocol error 0x2E */
+    OI_HCIERR_INSUFFICIENT_SECURITY            = 747, /**< HCI: protocol error 0x2F */
+    OI_HCIERR_PARM_OUT_OF_MANDATORY_RANGE      = 748, /**< HCI: protocol error 0x30 */
+    OI_HCIERR_RESERVED_31                      = 749, /**< HCI: protocol error 0x31 */
+    OI_HCIERR_ROLE_SWITCH_PENDING              = 750, /**< HCI: protocol error 0x32 */
+    OI_HCIERR_RESERVED_33                      = 751, /**< HCI: protocol error 0x33 */
+    OI_HCIERR_RESERVED_SLOT_VIOLATION          = 752, /**< HCI: protocol error 0x34 */
+    OI_HCIERR_ROLE_SWITCH_FAILED               = 753, /**< HCI: protocol error 0x35 */
+    OI_HCIERR_EIR_TOO_LARGE                    = 754, /**< HCI: protocol error 0x36 */
+    OI_HCIERR_SSP_NOT_SUPPORTED_BY_HOST        = 755, /**< HCI: protocol error 0x37 */
+    OI_HCIERR_HOST_BUSY_PAIRING                = 756, /**< HCI: protocol error 0x38 */
+
+    OI_HCIERR_UNKNOWN_ERROR                    = 757, /**< HCI: unknown error code */
+    OI_HCIERR_LAST_ERROR_VALUE                 = 757, /**< marker for last HCI protocol error */
+
+    OI_SDP_SPEC_ERROR                    = 800, /**< SDP: Base error status for mapping OI_STATUS codes to SDP errors */
+    OI_SDP_INVALID_SERVICE_RECORD_HANDLE = (OI_SDP_SPEC_ERROR + 2), /**< SDP: protocol error Invalid Service Record Handle */
+    OI_SDP_INVALID_REQUEST_SYNTAX        = (OI_SDP_SPEC_ERROR + 3), /**< SDP: protocol error Invalid Request Syntax */
+    OI_SDP_INVALID_PDU_SIZE              = (OI_SDP_SPEC_ERROR + 4), /**< SDP: protocol error Invalid PDU Size */
+    OI_SDP_INVALID_CONTINUATION_STATE    = (OI_SDP_SPEC_ERROR + 5), /**< SDP: protocol error Invalid Continuation State */
+    OI_SDP_INSUFFICIENT_RESOURCES        = (OI_SDP_SPEC_ERROR + 6), /**< SDP: protocol error Insufficient Resources */
+    OI_SDP_ERROR                         = 807, /**< SDP: server returned an error code */
+    OI_SDP_CORRUPT_DATA_ELEMENT          = 808, /**< SDP: Invalid or corrupt data element representation */
+    OI_SDP_SERVER_NOT_CONNECTED          = 810, /**< SDP: Attempt to disconnect from an unconnected server */
+    OI_SDP_ACCESS_DENIED                 = 811, /**< SDP: Server denied access to server */
+    OI_SDP_ATTRIBUTES_OUT_OF_ORDER       = 812, /**< SDP: Attributes in attribute list not in ascending order */
+    OI_SDP_DEVICE_DOES_NOT_SUPPORT_SDP   = 813, /**< SDP: Tried to connect to a device that does not support SDP */
+    OI_SDP_NO_MORE_DATA                  = 815, /**< SDP: Server does not have more continuation data */
+    OI_SDP_REQUEST_PARAMS_TOO_LONG       = 816, /**< SDP: Parameters for a request exceed the L2CAP buffer size */
+    OI_SDP_REQUEST_PENDING               = 817, /**< SDP: Cannot make a request when another request is being processed */
+    OI_SDP_SERVER_CONNECT_FAILED         = 819, /**< SDP: Failed attempt to connect to an SDP server */
+    OI_SDP_SERVER_TOO_MANY_CONNECTIONS   = 821, /**< SDP: Exceeded maximum number of simultaneous server connections */
+    OI_SDP_NO_MATCHING_SERVICE_RECORD    = 823, /**< SDP: No service record matched the UUID list */
+    OI_SDP_PARTIAL_RESPONSE              = 824, /**< SDP: Internal use only */
+    OI_SDP_ILLEGAL_ARGUMENT              = 825, /**< SDP: Illegal argument passed to an SDP function */
+    OI_SDP_ATTRIBUTE_NOT_FOUND           = 826, /**< SDP: A requested attribute was not found in a service record */
+    OI_SDP_DATABASE_OUT_OF_RESOURCES     = 827, /**< SDP: server database is out of memory */
+    OI_SDP_SHORT_PDU                     = 829, /**< SDP: Not enough bytes in the packet */
+    OI_SDP_TRANSACTION_ID_MISMATCH       = 830, /**< SDP: Transaction Id was not as expected */
+    OI_SDP_UNEXPECTED_RESPONSE_PDU_ID    = 831, /**< SDP: Did not expect this response PDU */
+    OI_SDP_REQUEST_TIMEOUT               = 832, /**< SDP: Did not get a response within the timeout period */
+    OI_SDP_INVALID_RESPONSE_SYNTAX       = 833, /**< SDP: Response is not correctly formatted */
+    OI_SDP_CONNECTION_TIMEOUT            = 834, /**< SDP: Connection attempt timed out at a lower layer */
+    OI_SDP_RESPONSE_DATA_ERROR           = 835, /**< SDP: Response to a service request appears to be corrupt */
+    OI_SDP_TOO_MANY_ATTRIBUTE_BYTES      = 836, /**< SDP: Response contained more bytes than requested. */
+    OI_SDP_TOO_MANY_SERVICE_RECORDS      = 837, /**< SDP: Response contained more service records than requested. */
+    OI_SDP_INVALID_CONNECTION_ID         = 838, /**< SDP: Invalid connection ID in an SDP request */
+    OI_SDP_CANNOT_SET_ATTRIBUTE          = 839, /**< SDP: Attempt to set a dynamic attribute value failed */
+    OI_SDP_BADLY_FORMED_ATTRIBUTE_VALUE  = 840, /**< SDP: An attribute value has the wrong type or structure */
+    OI_SDP_NO_ATTRIBUTE_LIST_TO_REMOVE   = 841, /**< SDP: Attempt to remove a non-existent attribute list from a service record */
+    OI_SDP_ATTRIBUTE_LIST_ALREADY_ADDED  = 842, /**< SDP: An attribute list has already been added to the service record */
+    OI_SDP_DATA_ELEMENT_TRUNCATED        = 843, /**< SDP: Data element truncated (too few bytes) */
+
+    OI_RFCOMM_WRITE_IN_PROGRESS          = 901, /**< RFCOMM: Write in progress */
+    OI_RFCOMM_INVALID_BAUDRATE           = 903, /**< RFCOMM: Invalid baudrate */
+    OI_RFCOMM_INVALID_DATABIT            = 904, /**< RFCOMM: Invalid databit */
+    OI_RFCOMM_INVALID_STOPBIT            = 905, /**< RFCOMM: Invalid stopbit */
+    OI_RFCOMM_INVALID_PARITY             = 906, /**< RFCOMM: Invalid parity */
+    OI_RFCOMM_INVALID_PARITYTYPE         = 907, /**< RFCOMM: Invalid paritytype */
+    OI_RFCOMM_INVALID_FLOWCONTROL        = 908, /**< RFCOMM: Invalid flowcontrol */
+    OI_RFCOMM_SESSION_EXISTS             = 909, /**< RFCOMM: Session exists */
+    OI_RFCOMM_INVALID_CHANNEL            = 910, /**< RFCOMM: Invalid channel */
+    OI_RFCOMM_DLCI_EXISTS                = 911, /**< RFCOMM: DLCI exists */
+    OI_RFCOMM_LINK_NOT_FOUND             = 912, /**< RFCOMM: Link not found */
+    OI_RFCOMM_REMOTE_REJECT              = 913, /**< RFCOMM: Remote reject */
+    OI_RFCOMM_TEST_IN_PROGRESS           = 915, /**< RFCOMM: Test in progress */
+    OI_RFCOMM_SESSION_NOT_FOUND          = 916, /**< RFCOMM: Session not found */
+    OI_RFCOMM_INVALID_PACKET             = 917, /**< RFCOMM: Invalid packet */
+    OI_RFCOMM_FRAMESIZE_EXCEEDED         = 918, /**< RFCOMM: Framesize exceeded */
+    OI_RFCOMM_INVALID_DLCI               = 920, /**< RFCOMM: Invalid dlci */
+    OI_RFCOMM_SERVER_NOT_REGISTERED      = 921, /**< RFCOMM: Server not registered */
+    OI_RFCOMM_CREDIT_ERROR               = 922, /**< RFCOMM: Credit error */
+    OI_RFCOMM_NO_CHANNEL_NUMBER          = 923, /**< RFCOMM: No channel number */
+    OI_RFCOMM_QUERY_IN_PROGRESS          = 924, /**< RFCOMM: Query in progress */
+    OI_RFCOMM_SESSION_SHUTDOWN           = 925, /**< RFCOMM: Session shutdown */
+    OI_RFCOMM_LOCAL_DEVICE_DISCONNECTED  = 926, /**< RFCOMM: Local device disconnected */
+    OI_RFCOMM_REMOTE_DEVICE_DISCONNECTED = 927, /**< RFCOMM: Remote device disconnected */
+    OI_RFCOMM_OUT_OF_SERVER_CHANNELS     = 928, /**< RFCOMM: Out of server channels */
+
+    OI_DISPATCH_INVALID_CB_HANDLE        = 1001, /**< Dispatcher was handed an invalid callback handle */
+    OI_DISPATCH_TABLE_OVERFLOW           = 1002, /**< Dispatcher table is full */
+
+    OI_TEST_UNKNOWN_TEST                 = 1101, /**< TEST: Unknown test */
+    OI_TEST_FAIL                         = 1102, /**< TEST: Fail */
+
+    OI_HCITRANS_CANNOT_CONNECT_TO_DEVICE   = 1201, /**< TRANSPORT: Cannot connect to device */
+    OI_HCITRANS_BUFFER_TOO_SMALL           = 1203, /**< TRANSPORT: Buffer too small */
+    OI_HCITRANS_NULL_DEVICE_HANDLE         = 1204, /**< TRANSPORT: Null device handle */
+    OI_HCITRANS_IO_ERROR                   = 1205, /**< TRANSPORT: IO error */
+    OI_HCITRANS_DEVICE_NOT_READY           = 1206, /**< TRANSPORT: Device not ready */
+    OI_HCITRANS_FUNCTION_NOT_SUPPORTED     = 1207, /**< TRANSPORT: Function not supporteD */
+    OI_HCITRANS_ACCESS_DENIED              = 1209, /**< TRANSPORT: win32 */
+    OI_HCITRANS_ACL_DATA_ERROR             = 1210, /**< TRANSPORT: ACL data error */
+    OI_HCITRANS_SCO_DATA_ERROR             = 1211, /**< TRANSPORT: SCO data error */
+    OI_HCITRANS_EVENT_DATA_ERROR           = 1212, /**< TRANSPORT: HCI event data error */
+    OI_HCITRANS_INTERNAL_ERROR             = 1214, /**< TRANSPORT: Internal error in the transport */
+    OI_HCITRANS_LINK_NOT_ACTIVE            = 1215, /**< TRANSPORT: Link to the device is not currently active */
+    OI_HCITRANS_INITIALIZING               = 1216, /**< TRANSPORT: Transport is initializing */
+
+    OI_DEVMGR_NO_CONNECTION                = 1301, /**< DEVMGR: No connection */
+    OI_DEVMGR_HARDWARE_ERROR               = 1305, /**< DEVMGR: error reported by HCI */
+    OI_DEVMGR_PENDING_CONNECT_LIST_FULL    = 1307, /**< DEVMGR: Pending connect list full */
+    OI_DEVMGR_CONNECTION_LIST_FULL         = 1309, /**< DEVMGR: Connection list full */
+    OI_DEVMGR_NO_SUCH_CONNECTION           = 1310, /**< DEVMGR: No such connection */
+    OI_DEVMGR_INQUIRY_IN_PROGRESS          = 1311, /**< DEVMGR: Inquiry in progress */
+    OI_DEVMGR_PERIODIC_INQUIRY_ACTIVE      = 1312, /**< DEVMGR: Periodic inquiry active */
+    OI_DEVMGR_NO_INQUIRIES_ACTIVE          = 1313, /**< DEVMGR: can not cancel/exit if not active */
+    OI_DEVMGR_DUPLICATE_CONNECTION         = 1314, /**< DEVMGR: internal error */
+    OI_DEVMGR_DUPLICATE_EVENT_CALLBACK     = 1316, /**< DEVMGR: attempt to register same callback twice */
+    OI_DEVMGR_EVENT_CALLBACK_LIST_FULL     = 1317, /**< DEVMGR: can not register event callback, list is full */
+    OI_DEVMGR_EVENT_CALLBACK_NOT_FOUND     = 1318, /**< DEVMGR: attempt to unregister callback failed */
+    OI_DEVMGR_BUSY                         = 1319, /**< DEVMGR: some operations can only execute one at a time */
+    OI_DEVMGR_ENUM_UNEXPECTED_INQ_COMPLETE = 1320, /**< DEVMGR: inquiry complete event in inappropriate enumeration state */
+    OI_DEVMGR_ENUM_UNEXPECTED_INQ_RESULT   = 1321, /**< DEVMGR: inquiry result event in inappropriate enumeration state */
+    OI_DEVMGR_ENUM_DATABASE_FULL           = 1322, /**< DEVMGR: device enumeration, database is full, couldn't add a new device */
+    OI_DEVMGR_ENUM_INQUIRIES_OVERLAP       = 1323, /**< DEVMGR: device enumeration, periodic inquiries occurring too close together */
+    OI_DEVMGR_UNKNOWN_LINK_TYPE            = 1324, /**< DEVMGR: HCI connect request with unkown link type */
+    OI_DEVMGR_PARAM_IO_ACTIVE              = 1325, /**< DEVMGR: request for parameter read/write while param read/write active */
+    OI_DEVMGR_UNKNOWN_IAC_LAP              = 1326, /**< DEVMGR: unrecognized IAC LAP */
+    OI_DEVMGR_SCO_ALREADY_REGISTERED       = 1327, /**< DEVMGR: only one application can use SCO */
+    OI_DEVMGR_SCO_NOT_REGISTERED           = 1328, /**< DEVMGR: SCO applications must register before using the API */
+    OI_DEVMGR_SCO_WITHOUT_ACL              = 1329, /**< DEVMGR: Got SCO connection but there is no underlying ACL connection */
+    OI_DEVMGR_NO_SUPPORT                   = 1330, /**< DEVMGR: Request is not supported by the device */
+    OI_DEVMGR_WRITE_POLICY_FAILED          = 1331, /**< DEVMGR: connection attempt failed - unable to write link policy */
+    OI_DEVMGR_NOT_IN_MASTER_MODE           = 1332, /**< DEVMGR: OI_DEVMGR EndMasterMode without prior OI_DEVMGR_BeginMasterMode */
+    OI_DEVMGR_POLICY_VIOLATION             = 1333, /**< DEVMGR: low-power request is rejected - link policy does not allow it */
+    OI_DEVMGR_BUSY_TIMEOUT                 = 1334, /**< DEVMGR: queued operation timed out while in the queue; \n
+        timeout configurable via @ref OI_CONFIG_DEVMGR::connectQueueTimeoutSecs "connectQueueTimeoutSecs" */
+    OI_DEVMGR_REENCRYPT_FAILED             = 1335, /**< DEVMGR: failed to re-encrypt link after role switch */
+    OI_DEVMGR_ROLE_POLICY_CONFLICT         = 1336, /**< DEVMGR: requested role conflicts with current policy */
+    OI_DEVMGR_BAD_INTERVAL                 = 1337, /**< DEVMGR: current linkTO outside range of requested min/max interval */
+    OI_DEVMGR_INVALID_SCO_HANDLE           = 1338, /**< DEVMGR: HCI SCO event, invalid handle */
+    OI_DEVMGR_CONNECTION_OVERLAP           = 1339, /**< DEVMGR: Connection failed due to race condition with remote side */
+    OI_DEVMGR_ORPHAN_SUBRATE_COMPLETE      = 1340, /**< DEVMGR: sniff subrate complete, but no callback */
+    OI_DEVMGR_EIR_RESPONSE_2_LARGE         = 1341, /**< DEVMGR: eir builder, response length would exceed spec max */
+
+    OI_SECMGR_NO_POLICY                    = 1401, /**< SECMGR: no security policy has been established */
+    OI_SECMGR_INTERNAL_ERROR               = 1402, /**< SECMGR: internal inconsistency */
+    OI_SECMGR_ORPHANED_CALLBACK            = 1403, /**< SECMGR: we've been called back, but CB context is gone */
+    OI_SECMGR_BUSY                         = 1404, /**< SECMGR: configure and access request cannot be concurrent */
+    OI_SECMGR_DEVICE_NOT_TRUSTED           = 1405, /**< SECMGR: l2cap access denied - device is not trusted */
+    OI_SECMGR_DEVICE_ENCRYPT_FAIL          = 1407, /**< SECMGR: l2cap access denied - failed to start encryption */
+    OI_SECMGR_DISCONNECTED_FAIL            = 1408, /**< SECMGR: l2cap access denied - disconnected */
+    OI_SECMGR_ACCESS_PENDING               = 1409, /**< SECMGR: l2cap access request is still pending  */
+    OI_SECMGR_PIN_CODE_TOO_SHORT           = 1410, /**< SECMGR: Higher-layer process gave us a pin code that is too short */
+    OI_SECMGR_UNKNOWN_ENCRYPT_VALUE        = 1411, /**< SECMGR: got EncryptionChange event, unknown encryption enable value */
+    OI_SECMGR_INVALID_POLICY               = 1412, /**< SECMGR: the specified security policy is not valid for security mode */
+    OI_SECMGR_AUTHORIZATION_FAILED         = 1413, /**< SECMGR: device authorization failed */
+    OI_SECMGR_ENCRYPTION_FAILED            = 1414, /**< SECMGR: device encryption failed */
+    OI_SECMGR_UNIT_KEY_UNSUPPORTED         = 1415, /**< SECMGR: authentication failed due to non-support of unit keys */
+    OI_SECMGR_NOT_REGISTERED               = 1416, /**< SECMGR: required registrations have not yet occurred */
+    OI_SECMGR_ILLEGAL_WRITE_SSP_MODE       = 1417, /**< SECMGR: 2.1 HCI spec does not allow SSP mode to be disabled */
+    OI_SECMGR_INVALID_SEC_LEVEL            = 1418, /**< SECMGR: security level for a service is not a valid value */
+    OI_SECMGR_INSUFFICIENT_LINK_KEY        = 1419, /**< SECMGR: link key type is not sufficient to meet service requirements */
+    OI_SECMGR_INVALID_KEY_TYPE             = 1420, /**< SECMGR: link key type is not a valid value */
+    OI_SECMGR_SSP_NOT_ENCRYPTED            = 1421, /**< SECMGR: ssp required encryption on incoming link */
+    OI_SECMGR_ORPHAN_EVENT                 = 1422, /**< SECMGR: some HCI security event unrelated to current processes */
+    OI_SECMGR_NOT_BONDABLE                 = 1423, /**< SECMGR: not in bondable mode */
+
+    OI_TCS_INVALID_ELEMENT_TYPE            = 1602, /**< TCS: element type is invalid */
+    OI_TCS_INVALID_PACKET                  = 1603, /**< TCS: packet is invalide */
+    OI_TCS_CALL_IN_PROGRESS                = 1604, /**< TCS: call is in progress */
+    OI_TCS_NO_CALL_IN_PROGRESS             = 1605, /**< TCS: no call in progress */
+
+    OI_OBEX_CONTINUE                       = 1701, /**< OBEX: Continue processing OBEX request */
+    OI_OBEX_COMMAND_ERROR                  = 1702, /**< OBEX: An unrecognized OBEX command opcode */
+    OI_OBEX_CONNECTION_TIMEOUT             = 1703, /**< OBEX: Timeout waiting for a response to a request */
+    OI_OBEX_CONNECT_FAILED                 = 1704, /**< OBEX: An OBEX connection request did not succeed */
+    OI_OBEX_DISCONNECT_FAILED              = 1705, /**< OBEX: A disconnect failed probably because the connection did not exist */
+    OI_OBEX_ERROR                          = 1706, /**< OBEX: Unspecified OBEX error */
+    OI_OBEX_INCOMPLETE_PACKET              = 1707, /**< OBEX: Packet too short or corrupt */
+    OI_OBEX_LENGTH_REQUIRED                = 1708, /**< OBEX: Length header required in OBEX command */
+    OI_OBEX_NOT_CONNECTED                  = 1709, /**< OBEX: No connection to OBEX server */
+    OI_OBEX_NO_MORE_CONNECTIONS            = 1710, /**< OBEX: Reached max connections limit */
+    OI_OBEX_OPERATION_IN_PROGRESS          = 1711, /**< OBEX: Another operation is still in progress on a connection */
+    OI_OBEX_PUT_RESPONSE_ERROR             = 1712, /**< OBEX: An error in the response to a PUT command */
+    OI_OBEX_GET_RESPONSE_ERROR             = 1713, /**< OBEX: An error in the response to a GET command */
+    OI_OBEX_REQUIRED_HEADER_NOT_FOUND      = 1714, /**< OBEX: packet was missing a required header */
+    OI_OBEX_SERVICE_UNAVAILABLE            = 1715, /**< OBEX: Unown OBEX target or required service */
+    OI_OBEX_TOO_MANY_HEADER_BYTES          = 1716, /**< OBEX: Headers will not fit in single OBEX packet */
+    OI_OBEX_UNKNOWN_COMMAND                = 1717, /**< OBEX: Unrecognized OBEX command */
+    OI_OBEX_UNSUPPORTED_VERSION            = 1718, /**< OBEX: Version mismatch */
+    OI_OBEX_CLIENT_ABORTED_COMMAND         = 1719, /**< OBEX: server received abort command */
+    OI_OBEX_BAD_PACKET                     = 1720, /**< OBEX: Any malformed OBEX packet */
+    OI_OBEX_BAD_REQUEST                    = 1721, /**< OBEX: Maps to OBEX response of the same name */
+    OI_OBEX_OBJECT_OVERFLOW                = 1723, /**< OBEX: Too many bytes received. */
+    OI_OBEX_NOT_FOUND                      = 1724, /**< OBEX: Maps to obex response of same name */
+    OI_OBEX_ACCESS_DENIED                  = 1735, /**< OBEX: Object could not be read or written. */
+    OI_OBEX_VALUE_NOT_ACCEPTABLE           = 1736, /**< OBEX: Value in a command was not in the acceptable range. */
+    OI_OBEX_PACKET_OVERFLOW                = 1737, /**< OBEX: Buffer will not fit in a single OBEX packet. */
+    OI_OBEX_NO_SUCH_FOLDER                 = 1738, /**< OBEX: Error returned by a setpath operation. */
+    OI_OBEX_NAME_REQUIRED                  = 1739, /**< OBEX: Name must be non-null and non-empty. */
+    OI_OBEX_PASSWORD_TOO_LONG              = 1740, /**< OBEX: Password exceeds implementation imposed length limit. */
+    OI_OBEX_PRECONDITION_FAILED            = 1741, /**< OBEX: response Precondition Failed */
+    OI_OBEX_UNAUTHORIZED                   = 1742, /**< OBEX: authentication was not successful. */
+    OI_OBEX_NOT_IMPLEMENTED                = 1743, /**< OBEX: Unimplemented feature. */
+    OI_OBEX_INVALID_AUTH_DIGEST            = 1744, /**< OBEX: An authentication digest was bad. */
+    OI_OBEX_INVALID_OPERATION              = 1745, /**< OBEX: Operation not allowed at this time. */
+    OI_OBEX_DATABASE_FULL                  = 1746, /**< OBEX: Sync database full. */
+    OI_OBEX_DATABASE_LOCKED                = 1747, /**< OBEX: Sync database locked. */
+    OI_OBEX_INTERNAL_SERVER_ERROR          = 1748, /**< OBEX: response Internal Server Error */
+    OI_OBEX_UNSUPPORTED_MEDIA_TYPE         = 1749, /**< OBEX: response Unsupported Media Type */
+    OI_OBEX_PARTIAL_CONTENT                = 1750, /**< OBEX: response Partial Content */
+    OI_OBEX_METHOD_NOT_ALLOWED             = 1751, /**< OBEX: response Method Not Allowed */
+    OI_OBEXSRV_INCOMPLETE_GET              = 1752, /**< OBEX: Indicates to a GET handler that the request phase is still in progress */
+    OI_OBEX_FOLDER_BROWSING_NOT_ALLOWED    = 1753, /**< OBEX: Indicates that an FTP server does not allow folder browsing */
+    OI_OBEX_SERVER_FORCED_DISCONNECT       = 1754, /**< OBEX: connection was forcibly terminated by the server */
+    OI_OBEX_OFS_ERROR                      = 1755, /**< OBEX: OPP object file system error occurred */
+    OI_OBEX_FILEOP_ERROR                   = 1756, /**< OBEX: FTP/PBAP file operation system error occurred */
+    OI_OBEX_USERID_TOO_LONG                = 1757, /**< OBEX: User Id exceeds spec limited length limit. */
+
+    OI_HANDSFREE_EVENT_REPORTING_DISABLED  = 1801, /**< HANDSFREE: Event reporting disabled */
+    OI_HANDSFREE_NOT_CONNECTED             = 1802, /**< HANDSFREE: Not connected */
+    OI_HANDSFREE_SERVICE_NOT_STARTED       = 1803, /**< HANDSFREE: Cannot connect to handsfree AG if handsfree service not started */
+    OI_HANDSFREE_AG_SERVICE_NOT_STARTED    = 1804, /**< HANDSFREE: Cannot connect to handsfree device if handsfree AG service not started */
+    OI_HANDSFREE_COMMAND_IN_PROGRESS       = 1805, /**< HANDSFREE: Cannot accept a command at this time */
+    OI_HANDSFREE_AUDIO_ALREADY_CONNECTED   = 1806, /**< HANDSFREE: Audio is already connected */
+    OI_HANDSFREE_AUDIO_NOT_CONNECTED       = 1807, /**< HANDSFREE: Audio is not connected */
+    OI_HANDSFREE_FEATURE_NOT_SUPPORTED     = 1808, /**< HANDSFREE: Local or remote feature not supported for requested command */
+
+    OI_HEADSET_SERVICE_NOT_STARTED         = 1901, /**< HEADSET: Cannot connect to headset AG if headset service not started */
+    OI_HEADSET_AG_SERVICE_NOT_STARTED      = 1902, /**< HEADSET: Cannot connect to headset device if headset AG service not started */
+    OI_HEADSET_COMMAND_IN_PROGRESS         = 1903, /**< HEADSET: Cannot accept a command at this time */
+
+    OI_BNEP_INVALID_MTU                             = 2001, /**< BNEP: The remote device cannot support the minimum BNEP MTU */
+    OI_BNEP_SETUP_TIMEOUT                           = 2002, /**< BNEP: The setup request timed out. */
+    OI_BNEP_SERVICE_NOT_REGISTERED                  = 2003, /**< BNEP: The requested service was not found. */
+    OI_BNEP_INVALID_HANDLE                          = 2004, /**< BNEP: The specified connection handle is not valid. */
+    OI_BNEP_RESPONSE_TIMEOUT                        = 2005, /**< BNEP: The timer for receiving a response has expired. */
+    OI_BNEP_INVALID_CONNECTION                      = 2006, /**< BNEP: Invalid connection */
+    OI_BNEP_INVALID_FILTER                          = 2007, /**< BNEP: The supplied filter was invalid. */
+    OI_BNEP_CONNECTION_EXISTS                       = 2008, /**< BNEP: An attempt was made to create a duplicate connection. */
+    OI_BNEP_NOT_INITIALIZED                         = 2009, /**< BNEP: Init has not been called */
+    OI_BNEP_CONNECT_BASE                            = 2010, /**< BNEP: connection response codes */
+    OI_BNEP_CONNECT_FAILED_INVALID_DEST_UUID        = 2011, /**< BNEP: connect response code Invalid Dest UUID */
+    OI_BNEP_CONNECT_FAILED_INVALID_SOURCE_UUID      = 2012, /**< BNEP: connect response code Invalid Source UUID */
+    OI_BNEP_CONNECT_FAILED_INVALID_UUID_SIZE        = 2013, /**< BNEP: connect response code Invalid UUID Size */
+    OI_BNEP_CONNECT_FAILED_NOT_ALLOWED              = 2014, /**< BNEP: connect response code Not Allowed */
+    OI_BNEP_FILTER_NET_BASE                         = 2020, /**< BNEP: filter response codes */
+    OI_BNEP_FILTER_NET_UNSUPPORTED_REQUEST          = 2021, /**< BNEP: filter response code Unsupported Request */
+    OI_BNEP_FILTER_NET_FAILED_INVALID_PROTOCOL_TYPE = 2022, /**< BNEP: filter response code Invalid Protocol Type */
+    OI_BNEP_FILTER_NET_FAILED_MAX_LIMIT_REACHED     = 2023, /**< BNEP: filter response code Max Limit Reached */
+    OI_BNEP_FILTER_NET_FAILED_SECURITY              = 2024, /**< BNEP: filter response code Security */
+    OI_BNEP_FILTER_MULTI_BASE                       = 2030, /**< BNEP: multicast response codes */
+    OI_BNEP_FILTER_MULTI_UNSUPPORTED_REQUEST        = 2031, /**< BNEP: multicast response code Unsupported Request */
+    OI_BNEP_FILTER_MULTI_FAILED_INVALID_ADDRESS     = 2032, /**< BNEP: multicast response code Invalid Address */
+    OI_BNEP_FILTER_MULTI_FAILED_MAX_LIMIT_REACHED   = 2033, /**< BNEP: multicast response code Max Limit Reached */
+    OI_BNEP_FILTER_MULTI_FAILED_SECURITY            = 2034, /**< BNEP: multicast response code Security */
+    OI_BNEP_LOCAL_DEVICE_MUST_BE_MASTER             = 2040, /**< BNEP: Device must be master of the piconet for this function */
+    OI_BNEP_PACKET_FILTERED_OUT                     = 2041, /**< BNEP: Packet did not pass current filters */
+
+    OI_NETIFC_UP_FAILED                    = 2101, /**< NETIFC: Could not bring up network interface */
+    OI_NETIFC_COULD_NOT_CREATE_THREAD      = 2102, /**< NETIFC: Network interface could not create a read thread */
+    OI_NETIFC_INITIALIZATION_FAILED        = 2103, /**< NETIFC: Error in network interface initialization */
+    OI_NETIFC_INTERFACE_ALREADY_UP         = 2104, /**< NETIFC: Network interface is already up */
+    OI_NETIFC_INTERFACE_NOT_UP             = 2105, /**< NETIFC: Network interface is not up */
+    OI_NETIFC_PACKET_TOO_BIG               = 2106, /**< NETIFC: The packet is too big */
+
+    OI_PAN_ROLE_ALREADY_REGISTERED         = 2201, /**< PAN: This PAN role was already registered */
+    OI_PAN_ROLE_NOT_ALLOWED                = 2202, /**< PAN: The PAN role is not currently allowed */
+    OI_PAN_INCOMPATIBLE_ROLES              = 2203, /**< PAN: Only certain local and remote role combinations are permitted */
+    OI_PAN_INVALID_ROLE                    = 2204, /**< PAN: Role specified is not one the defined PAN roles */
+    OI_PAN_CONNECTION_IN_PROGRESS          = 2205, /**< PAN: A PAN connection is currently being established */
+    OI_PAN_USER_ALREADY_CONNECTED          = 2206, /**< PAN: PAN user role only allows a single connection */
+    OI_PAN_DEVICE_CONNECTED                = 2207, /**< PAN: A PAN connection already exists to specified device */
+
+    OI_CODEC_SBC_NO_SYNCWORD               = 2301, /**< CODEC: Couldn't find an SBC SYNCWORD */
+    OI_CODEC_SBC_NOT_ENOUGH_HEADER_DATA    = 2302, /**< CODEC: Not enough data provided to decode an SBC header */
+    OI_CODEC_SBC_NOT_ENOUGH_BODY_DATA      = 2303, /**< CODEC: Decoded the header, but not enough data to contain the rest of the frame */
+    OI_CODEC_SBC_NOT_ENOUGH_AUDIO_DATA     = 2304, /**< CODEC: Not enough audio data for this frame */
+    OI_CODEC_SBC_CHECKSUM_MISMATCH         = 2305, /**< CODEC: The frame header didn't match the checksum */
+    OI_CODEC_SBC_PARTIAL_DECODE            = 2306, /**< CODEC: Decoding was successful, but frame data still remains. Next call will provide audio without consuming input data. */
+
+    OI_FIFOQ_QUEUE_NOT_ALIGNED             = 2401, /**< FIFOQ: queue must be 32-bit aligned */
+    OI_FIFOQ_INVALID_Q                     = 2402, /**< FIFOQ: queue parameter is not a valid queue */
+    OI_FIFOQ_BUF_TOO_LARGE                 = 2403, /**< FIFOQ: attempt to queue a buffer which is too large */
+    OI_FIFOQ_FULL                          = 2404, /**< FIFOQ: enqueue() failed, queue is full */
+    OI_FIFOQ_NOT_ALLOCATED                 = 2405, /**< FIFOQ: Enqueue QBuf() failed, buffer not allocated */
+    OI_FIFOQ_INVALID_DATA_PTR              = 2406, /**< FIFOQ: Enqueue QBuf() failed, data pointer does not match */
+
+    OI_HID_HOST_SERVICE_NOT_STARTED        = 2601, /**< HID: Cannot connect to a HID device unless HID host is started */
+    OI_HID_DEVICE_SERVICE_NOT_STARTED      = 2602, /**< HID: Cannot connect to a HID host unless HID device is started */
+
+    OI_AT_ERROR                            = 2701, /**< AT: ERROR response */
+    OI_AT_NO_CARRIER                       = 2702, /**< AT: NO CARRIER response */
+    OI_AT_BUSY                             = 2703, /**< AT: BUSY response */
+    OI_AT_NO_ANSWER                        = 2704, /**< AT: NO ANSWER response */
+    OI_AT_DELAYED                          = 2705, /**< AT: DELAYED response */
+    OI_AT_BLACKLISTED                      = 2706, /**< AT: BLACKLISTED response */
+    OI_AT_CME_ERROR                        = 2707, /**< AT: +CME ERROR response */
+    OI_AT_CMS_ERROR                        = 2708, /**< AT: +CMS ERROR response */
+
+    OI_BLST_CHARACTER_TIMEOUT              = 2801, /**< BLST: Timeout expired while waiting for a character from the client. */
+    OI_BLST_ACKNOWLDGE_TIMEOUT             = 2802, /**< BLST: Timeout expired while waiting for event acknowledgment from the client */
+    OI_BLST_TX_NOT_READY                   = 2803, /**< BLST: BLST is not ready to send a BHAPI message to the client. */
+    OI_BLST_TX_BUSY                        = 2804, /**< BLST: BLST transmit buffer is in use. */
+
+    OI_AVDTP_CONNECTION_SEQ_ERROR          = 2901, /**< AVDTP: sequencing of signalling/media channel connections broken. */
+    OI_AVDTP_OUT_OF_RESOURCES              = 2902, /**< AVDTP: Tried to allocate too many endpoints or signalling channels. */
+
+    OI_PBAP_REPOSITORY_NOT_SET             = 3001, /**< PBAP: Phonebook repository must be set for operation to complete. */
+    OI_PBAP_PHONEBOOK_NOT_SET              = 3002, /**< PBAP: Phonebook be set for operation to complete. */
+
+    OI_AADP_BAD_ENDPOINT                   = 3101, /**< AADP: Invalid local endpoint specified */
+    OI_AADP_BAD_STATE                      = 3102, /**< AADP: AADP State is not correct for this operation. */
+
+    OI_UNICODE_INVALID_SOURCE              = 3200, /**< Unicode Conversion: Source string has invalid character encoding. */
+    OI_UNICODE_SOURCE_EXHAUSTED            = 3201, /**< Unicode Conversion: Incomplete Unicode character at end of source buffer. */
+    OI_UNICODE_DESTINATION_EXHAUSTED       = 3202, /**< Unicode Conversion: Destination buffer not large enough to hold resulting Unicode string. */
+
+    OI_AVRCP_TOO_MANY_CONNECTIONS          = 3300, /**< AVRCP: Exceeded maximum number of simultaneous AVCTP connections. */
+    OI_AVRCP_NOT_IMPLEMENTED               = 3301, /**< AVRCP: The target does not implement the command specified by the opcode and operand. */
+    OI_AVRCP_REJECTED                      = 3302, /**< AVRCP: The target cannot respond because of invalid operands in command packet. */
+    OI_AVRCP_INVALID_RESPONSE              = 3303, /**< AVRCP: The controller received the response with invalid parameters */
+    OI_AVRCP_RESPONSE_PACKET_OVERFLOW      = 3304, /**< AVRCP: The response message does not fir in one AVRCP packet (512 bytes), has to be fragmented. */
+    OI_AVRCP_RESPONSE_INVALID_PDU          = 3305, /**< AVRCP: Command rejected: target received a PDU that it did not understand. */
+    OI_AVRCP_RESPONSE_INVALID_PARAMETER    = 3306, /**< AVRCP: Command rejected: target received a PDU with a parameter ID that it did not understand. */
+    OI_AVRCP_RESPONSE_PARAMETER_NOT_FOUND  = 3307, /**< AVRCP: Command rejected: specified parameter not found, sent if the parameter ID is understood, but content is wrong or corrupted.*/
+    OI_AVRCP_RESPONSE_INTERNAL_ERROR       = 3308, /**< AVRCP: Command rejected: target detected other error conditions. */
+    OI_MAX_BM3_STATUS_VAL,       /* Maximum BM3 status code */
+
+    /* Status code values reserved for BM3 SDK platform-specific implementations */
+    OI_STATUS_RESERVED_FOR_BCOT = 9000,
+
+    /* Status code values reserved for BHAPI products */
+    OI_STATUS_RESERVED_FOR_BHAPI = 9200,
+
+    /* Status code values reserved for Soundabout products */
+    OI_STATUS_RESERVED_FOR_SOUNDABOUT= 9400,
+
+    /*
+     * Status code values greater than or equal to this value are reserved for use by applications.
+     * However, because of differences between compilers, and differences between 16-bit and 32-bit
+     * platforms custom status codes should be in the 16-bit range, so status codes can range from 0
+     * to 65534, inclusive (65535 is reserved)
+     */
+    OI_STATUS_RESERVED_FOR_APPS = 10000,
+
+
+
+    OI_STATUS_NONE = 0xffff     /**< Special status code to indicate that there is no status. (Only to be used for special cases involving OI_SLOG_ERROR() and OI_SLOG_WARNING().) */
+
+} OI_STATUS;
+
+
+/* Remeber to update the #define below when new reserved blocks are added to
+ * the list above. */
+#define OI_NUM_RESERVED_STATUS_BLOCKS 4 /**< Number of status code blocks reserved, including user apps */
+
+
+/**
+ * Test for success
+ */
+#define OI_SUCCESS(x)    ((x) == OI_OK)
+
+/*****************************************************************************/
+#ifdef __cplusplus
+}
+#endif
+
+/**@}*/
+
+#endif /* _OI_STATUS_H */
+
diff --git a/rtkbt/code/bt/embdrv/sbc/decoder/include/oi_stddefs.h b/rtkbt/code/bt/embdrv/sbc/decoder/include/oi_stddefs.h
new file mode 100755
index 0000000..ec8c453
--- /dev/null
+++ b/rtkbt/code/bt/embdrv/sbc/decoder/include/oi_stddefs.h
@@ -0,0 +1,232 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 The Android Open Source Project
+ *  Copyright 2002 - 2004 Open Interface North America, Inc. All rights reserved.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+#ifndef OI_STDDEFS_H
+#define OI_STDDEFS_H
+/**
+ * @file
+ * This file contains BM3 standard type definitions.
+ *
+ */
+
+/**********************************************************************************
+  $Revision: #1 $
+***********************************************************************************/
+
+#include "oi_cpu_dep.h"
+
+/** \addtogroup Misc Miscellaneous APIs */
+/**@{*/
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifndef FALSE
+#define FALSE 0         /**< This define statement sets FALSE as a preprocessor alias for 0. */
+#endif
+
+#ifndef TRUE
+#define TRUE (!FALSE)  /**< This define statement sets TRUE as a preprocessor alias for !FALSE. */
+#endif
+
+#ifdef HEW_TOOLCHAIN
+    #ifdef NULL
+        #undef NULL         /**< Override HEW toolchain NULL definition */
+    #endif
+    #define NULL 0          /**< HEW toolchain does not allow us to compare (void*) type to function pointer */
+#else
+    #ifndef NULL
+        #define NULL ((void*)0) /**< This define statement sets NULL as a preprocessor alias for (void*)0 */
+    #endif
+#endif
+
+/**
+ * @name  Maximum and minimum values for basic types
+ * @{
+ */
+#define OI_INT8_MIN   ((OI_INT8)0x80)          /**< decimal value: -128 */
+#define OI_INT8_MAX   ((OI_INT8)0x7F)          /**< decimal value: 127 */
+#define OI_INT16_MIN  ((OI_INT16)0x8000)       /**< decimal value: -32768 */
+#define OI_INT16_MAX  ((OI_INT16)0x7FFF)       /**< decimal value: 32767 */
+#define OI_INT32_MIN  ((OI_INT32)0x80000000)   /**< decimal value: -2,147,483,648 */
+#define OI_INT32_MAX  ((OI_INT32)0x7FFFFFFF)   /**< decimal value: 2,147,483,647 */
+#define OI_UINT8_MIN  ((OI_UINT8)0)            /**< decimal value: 0 */
+#define OI_UINT8_MAX  ((OI_UINT8)0xFF)         /**< decimal value: 255 */
+#define OI_UINT16_MIN ((OI_UINT16)0)           /**< decimal value: 0 */
+#define OI_UINT16_MAX ((OI_UINT16)0xFFFF)      /**< decimal value: 65535 */
+#define OI_UINT32_MIN ((OI_UINT32)0)           /**< decimal value: 0 */
+#define OI_UINT32_MAX ((OI_UINT32)0xFFFFFFFF)  /**< decimal value: 4,294,967,295 */
+
+/**
+ * @}
+ */
+
+/**
+ * @name  Integer types required by the Service Discovery Protocol
+ * @{
+ */
+
+/** unsigned 64-bit integer as a structure of two unsigned 32-bit integers */
+typedef struct {
+    OI_UINT32 I1; /**< most significant 32 bits */
+    OI_UINT32 I2; /**< least significant 32 bits */
+} OI_UINT64;
+
+#define OI_UINT64_MIN { (OI_UINT32)0x00000000, (OI_UINT32)0x00000000 }
+#define OI_UINT64_MAX { (OI_UINT32)0XFFFFFFFF, (OI_UINT32)0XFFFFFFFF }
+
+/** signed 64-bit integer as a structure of one unsigned 32-bit integer and one signed 32-bit integer */
+typedef struct {
+    OI_INT32  I1; /**< most significant 32 bits  as a signed integer */
+    OI_UINT32 I2; /**< least significant 32 bits as an unsigned integer */
+} OI_INT64;
+
+#define OI_INT64_MIN { (OI_INT32)0x80000000, (OI_UINT32)0x00000000 }
+#define OI_INT64_MAX { (OI_INT32)0X7FFFFFFF, (OI_UINT32)0XFFFFFFFF }
+
+/** unsigned 128-bit integer as a structure of four unsigned 32-bit integers */
+typedef struct {
+    OI_UINT32 I1; /**< most significant 32 bits */
+    OI_UINT32 I2; /**< second-most significant 32 bits */
+    OI_UINT32 I3; /**< third-most significant 32 bits */
+    OI_UINT32 I4; /**< least significant 32 bits */
+} OI_UINT128;
+
+#define OI_UINT128_MIN { (OI_UINT32)0x00000000, (OI_UINT32)0x00000000,  (OI_UINT32)0x00000000, (OI_UINT32)0x00000000 }
+#define OI_UINT128_MAX { (OI_UINT32)0XFFFFFFFF, (OI_UINT32)0XFFFFFFFF,  (OI_UINT32)0XFFFFFFFF, (OI_UINT32)0XFFFFFFFF }
+
+/** signed 128-bit integer as a structure of three unsigned 32-bit integers and one signed 32-bit integer */
+typedef struct {
+    OI_INT32  I1;  /**< most significant 32 bits as a signed integer */
+    OI_UINT32 I2;  /**< second-most significant 32 bits as an unsigned integer */
+    OI_UINT32 I3;  /**< third-most significant 32 bits as an unsigned integer */
+    OI_UINT32 I4;  /**< least significant 32 bits as an unsigned integer */
+} OI_INT128;
+
+#define OI_INT128_MIN { (OI_UINT32)0x80000000, (OI_UINT32)0x00000000,  (OI_UINT32)0x00000000, (OI_UINT32)0x00000000 }
+#define OI_INT128_MAX { (OI_UINT32)0X7FFFFFFF, (OI_UINT32)0XFFFFFFFF,  (OI_UINT32)0XFFFFFFFF, (OI_UINT32)0XFFFFFFFF }
+
+/**
+ * @}
+ */
+
+
+/**
+ * type for ASCII character data items
+ */
+typedef char OI_CHAR;
+
+/**
+ * type for double-byte character data items
+ */
+typedef OI_UINT16 OI_CHAR16;
+
+/**
+ * types for UTF encoded strings.
+ */
+typedef OI_UINT8  OI_UTF8;
+typedef OI_UINT16 OI_UTF16;
+typedef OI_UINT32 OI_UTF32;
+
+
+/**
+ * @name Single-bit operation macros
+ * @{
+ * In these macros, x is the data item for which a bit is to be tested or set and y specifies which bit
+ * is to be tested or set.
+ */
+
+/** This macro's value is TRUE if the bit specified by y is set in data item x. */
+#define OI_BIT_TEST(x,y)   ((x) & (y))
+
+/** This macro's value is TRUE if the bit specified by y is not set in data item x. */
+#define OI_BIT_CLEAR_TEST(x,y)  (((x) & (y)) == 0)
+
+/** This macro sets the bit specified by y in data item x. */
+#define OI_BIT_SET(x,y)    ((x) |= (y))
+
+/** This macro clears the bit specified by y in data item x. */
+#define OI_BIT_CLEAR(x,y)  ((x) &= ~(y))
+
+/** @} */
+
+/**
+ * The OI_ARRAYSIZE macro is set to the number of elements in an array
+ * (instead of the number of bytes, which is returned by sizeof()).
+ */
+
+#ifndef OI_ARRAYSIZE
+#define OI_ARRAYSIZE(a) (sizeof(a)/sizeof(a[0]))
+#endif
+
+/**
+ * @name Preprocessor aliases for individual bit positions
+ *      Bits are defined here only if they are not already defined.
+ * @{
+ */
+
+#ifndef BIT0
+
+#define BIT0   0x00000001  /**< preprocessor alias for 32-bit value with bit 0 set, used to specify this single bit */
+#define BIT1   0x00000002  /**< preprocessor alias for 32-bit value with bit 1 set, used to specify this single bit */
+#define BIT2   0x00000004  /**< preprocessor alias for 32-bit value with bit 2 set, used to specify this single bit */
+#define BIT3   0x00000008  /**< preprocessor alias for 32-bit value with bit 3 set, used to specify this single bit */
+#define BIT4   0x00000010  /**< preprocessor alias for 32-bit value with bit 4 set, used to specify this single bit */
+#define BIT5   0x00000020  /**< preprocessor alias for 32-bit value with bit 5 set, used to specify this single bit */
+#define BIT6   0x00000040  /**< preprocessor alias for 32-bit value with bit 6 set, used to specify this single bit */
+#define BIT7   0x00000080  /**< preprocessor alias for 32-bit value with bit 7 set, used to specify this single bit */
+#define BIT8   0x00000100  /**< preprocessor alias for 32-bit value with bit 8 set, used to specify this single bit */
+#define BIT9   0x00000200  /**< preprocessor alias for 32-bit value with bit 9 set, used to specify this single bit */
+#define BIT10  0x00000400  /**< preprocessor alias for 32-bit value with bit 10 set, used to specify this single bit */
+#define BIT11  0x00000800  /**< preprocessor alias for 32-bit value with bit 11 set, used to specify this single bit */
+#define BIT12  0x00001000  /**< preprocessor alias for 32-bit value with bit 12 set, used to specify this single bit */
+#define BIT13  0x00002000  /**< preprocessor alias for 32-bit value with bit 13 set, used to specify this single bit */
+#define BIT14  0x00004000  /**< preprocessor alias for 32-bit value with bit 14 set, used to specify this single bit */
+#define BIT15  0x00008000  /**< preprocessor alias for 32-bit value with bit 15 set, used to specify this single bit */
+#define BIT16  0x00010000  /**< preprocessor alias for 32-bit value with bit 16 set, used to specify this single bit */
+#define BIT17  0x00020000  /**< preprocessor alias for 32-bit value with bit 17 set, used to specify this single bit */
+#define BIT18  0x00040000  /**< preprocessor alias for 32-bit value with bit 18 set, used to specify this single bit */
+#define BIT19  0x00080000  /**< preprocessor alias for 32-bit value with bit 19 set, used to specify this single bit */
+#define BIT20  0x00100000  /**< preprocessor alias for 32-bit value with bit 20 set, used to specify this single bit */
+#define BIT21  0x00200000  /**< preprocessor alias for 32-bit value with bit 21 set, used to specify this single bit */
+#define BIT22  0x00400000  /**< preprocessor alias for 32-bit value with bit 22 set, used to specify this single bit */
+#define BIT23  0x00800000  /**< preprocessor alias for 32-bit value with bit 23 set, used to specify this single bit */
+#define BIT24  0x01000000  /**< preprocessor alias for 32-bit value with bit 24 set, used to specify this single bit */
+#define BIT25  0x02000000  /**< preprocessor alias for 32-bit value with bit 25 set, used to specify this single bit */
+#define BIT26  0x04000000  /**< preprocessor alias for 32-bit value with bit 26 set, used to specify this single bit */
+#define BIT27  0x08000000  /**< preprocessor alias for 32-bit value with bit 27 set, used to specify this single bit */
+#define BIT28  0x10000000  /**< preprocessor alias for 32-bit value with bit 28 set, used to specify this single bit */
+#define BIT29  0x20000000  /**< preprocessor alias for 32-bit value with bit 29 set, used to specify this single bit */
+#define BIT30  0x40000000  /**< preprocessor alias for 32-bit value with bit 30 set, used to specify this single bit */
+#define BIT31  0x80000000  /**< preprocessor alias for 32-bit value with bit 31 set, used to specify this single bit */
+
+#endif  /* BIT0 et al */
+
+
+/** @} */
+
+
+#ifdef __cplusplus
+}
+#endif
+
+/**@}*/
+
+/*****************************************************************************/
+#endif /* OI_STDDEFS_H */
diff --git a/rtkbt/code/bt/embdrv/sbc/decoder/include/oi_string.h b/rtkbt/code/bt/embdrv/sbc/decoder/include/oi_string.h
new file mode 100755
index 0000000..1b12b5a
--- /dev/null
+++ b/rtkbt/code/bt/embdrv/sbc/decoder/include/oi_string.h
@@ -0,0 +1,208 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 The Android Open Source Project
+ *  Copyright 2002 - 2004 Open Interface North America, Inc. All rights reserved.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+#ifndef OI_STRING_H
+#define OI_STRING_H
+/**
+ * @file
+ * This file contains BM3 supplied portable string.h functions
+ *
+ */
+
+/**********************************************************************************
+  $Revision: #1 $
+***********************************************************************************/
+
+#include "oi_cpu_dep.h"
+#include "oi_stddefs.h"
+
+#if defined(USE_NATIVE_MEMCPY) || defined(USE_NATIVE_MALLOC)
+#include <string.h>
+#endif
+
+/** \addtogroup Misc Miscellaneous APIs */
+/**@{*/
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/*
+ * If we are using Native malloc(), we must also use
+ * native Ansi string.h functions for memory manipulation.
+ */
+#ifdef USE_NATIVE_MALLOC
+#ifndef USE_NATIVE_MEMCPY
+#define USE_NATIVE_MEMCPY
+#endif
+#endif
+
+#ifdef USE_NATIVE_MEMCPY
+
+#define OI_MemCopy(to, from, size)    memcpy((to), (from), (size))
+#define OI_MemSet(block, val, size)   memset((block), (val), (size))
+#define OI_MemZero(block, size)       memset((block), 0, (size))
+#define OI_MemCmp(s1, s2, n)          memcmp((s1), (s2), (n))
+#define OI_Strcpy(dest, src)          strcpy((dest),(src))
+#define OI_Strcat(dest, src)          strcat((dest),(src))
+#define OI_StrLen(str)                strlen((str))
+#define OI_Strcmp(s1, s2)             strcmp((s1), (s2))
+#define OI_Strncmp(s1, s2, n)         strncmp((s1), (s2), (n))
+
+#else
+
+/*
+ * OI_MemCopy
+ *
+ * Copy an arbitrary number of bytes from one memory address to another.
+ * The underlying implementation is the ANSI memmove() or equivalant, so
+ * overlapping memory copies will work correctly.
+ */
+void OI_MemCopy(void *To, void const *From, OI_UINT32 Size);
+
+
+/*
+ * OI_MemSet
+ *
+ * Sets all bytes in a block of memory to the same value
+ */
+void OI_MemSet(void *Block, OI_UINT8 Val, OI_UINT32 Size);
+
+
+/*
+ * OI_MemZero
+ *
+ * Sets all bytes in a block of memory to zero
+ */
+void OI_MemZero(void *Block, OI_UINT32 Size);
+
+
+/*
+ * OI_MemCmp
+ *
+ * Compare two blocks of memory
+ *
+ * Returns:
+ *        0, if s1 == s2
+ *      < 0, if s1 < s2
+ *      > 0, if s2 > s2
+ */
+OI_INT OI_MemCmp(void const *s1, void const *s2, OI_UINT32 n);
+
+/*
+ * OI_Strcpy
+ *
+ * Copies the Null terminated string from pStr to pDest, and
+ * returns pDest.
+ */
+
+OI_CHAR* OI_Strcpy(OI_CHAR *pDest,
+                   OI_CHAR const *pStr);
+
+/*
+ * OI_Strcat
+ *
+ * Concatonates the pStr string to the end of pDest, and
+ * returns pDest.
+ */
+
+OI_CHAR* OI_Strcat(OI_CHAR *pDest,
+                   OI_CHAR const *pStr) ;
+
+/*
+ * OI_StrLen
+ *
+ * Calculates the number of OI_CHARs in pStr (not including
+ * the Null terminator) and returns the value.
+ */
+OI_UINT OI_StrLen(OI_CHAR const *pStr) ;
+
+/*
+ * OI_Strcmp
+ *
+ * Compares two Null terminated strings
+ *
+ * Returns:
+ *        0, if s1 == s2
+ *      < 0, if s1 < s2
+ *      > 0, if s2 > s2
+ */
+OI_INT OI_Strcmp(OI_CHAR const *s1,
+                 OI_CHAR const *s2);
+
+/*
+ * OI_Strncmp
+ *
+ * Compares the first "len" OI_CHARs of strings s1 and s2.
+ *
+ * Returns:
+ *        0, if s1 == s2
+ *      < 0, if s1 < s2
+ *      > 0, if s2 > s2
+ */
+OI_INT OI_Strncmp(OI_CHAR const *s1,
+                  OI_CHAR const *s2,
+                  OI_UINT32      len);
+
+
+#endif /* USE_NATIVE_MEMCPY */
+
+/*
+ * OI_StrcmpInsensitive
+ *
+ * Compares two Null terminated strings, treating
+ * the Upper and Lower case of 'A' through 'Z' as
+ * equivilent.
+ *
+ * Returns:
+ *        0, if s1 == s2
+ *      < 0, if s1 < s2
+ *      > 0, if s2 > s2
+ */
+OI_INT OI_StrcmpInsensitive(OI_CHAR const *s1,
+                            OI_CHAR const *s2);
+
+/*
+ * OI_StrncmpInsensitive
+ *
+ * Compares the first "len" OI_CHARs of strings s1 and s2,
+ * treating the Upper and Lower case of 'A' through 'Z' as
+ * equivilent.
+ *
+ *
+ * Returns:
+ *        0, if s1 == s2
+ *      < 0, if s1 < s2
+ *      > 0, if s2 > s2
+ */
+OI_INT OI_StrncmpInsensitive(OI_CHAR const *s1,
+                             OI_CHAR const *s2,
+                             OI_UINT        len);
+
+
+
+#ifdef __cplusplus
+}
+#endif
+
+/** @} */
+
+/*****************************************************************************/
+#endif /* OI_STRING_H */
+
diff --git a/rtkbt/code/bt/embdrv/sbc/decoder/include/oi_time.h b/rtkbt/code/bt/embdrv/sbc/decoder/include/oi_time.h
new file mode 100755
index 0000000..40b8dfc
--- /dev/null
+++ b/rtkbt/code/bt/embdrv/sbc/decoder/include/oi_time.h
@@ -0,0 +1,200 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 The Android Open Source Project
+ *  Copyright 2002 - 2004 Open Interface North America, Inc. All rights reserved.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+#ifndef _OI_TIME_H
+#define _OI_TIME_H
+/** @file
+ *
+ * This file provides time type definitions and interfaces to time-related functions.
+ *
+ * The stack maintains a 64-bit real-time millisecond clock. The choice of
+ * milliseconds is for convenience, not accuracy.
+ *
+ * Timeouts are specified as tenths of seconds in a 32-bit value. Timeout values
+ * specified by the Bluetooth specification are usually muliple seconds, so
+ * accuracy to a tenth of a second is more than adequate.
+ *
+ * This file also contains macros to convert between seconds and the Link
+ * Manager's 1.28-second units.
+ *
+ */
+
+/**********************************************************************************
+  $Revision: #1 $
+***********************************************************************************/
+
+#include "oi_stddefs.h"
+
+
+/** \addtogroup Misc Miscellaneous APIs */
+/**@{*/
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+
+/**
+ * Within the core stack timeouts are specified in intervals of tenths of seconds
+ */
+
+typedef OI_UINT16 OI_INTERVAL;
+#define OI_INTERVALS_PER_SECOND     10
+#define MSECS_PER_OI_INTERVAL       (1000 / OI_INTERVALS_PER_SECOND)
+
+/** maximum interval (54 min 36.7 sec) */
+#define OI_MAX_INTERVAL   0x7fff
+
+
+/**
+ * Macro to convert seconds to OI_INTERVAL time units
+ */
+
+#define OI_SECONDS(n)    ((OI_INTERVAL) ((n) * OI_INTERVALS_PER_SECOND))
+
+/**
+ * Macro to convert milliseconds to OI_INTERVAL time units (Rounded Up)
+ */
+
+#define OI_MSECONDS(n)   ((OI_INTERVAL) ((n + MSECS_PER_OI_INTERVAL - 1) / MSECS_PER_OI_INTERVAL))
+
+/**
+ * Macro to convert minutes to OI_INTERVAL time units
+ */
+
+#define OI_MINUTES(n)    ((OI_INTERVAL) ((n) * OI_SECONDS(60)))
+
+/** Convert an OI_INTERVAL to milliseconds. */
+#define OI_INTERVAL_TO_MILLISECONDS(i) ((i) * MSECS_PER_OI_INTERVAL)
+
+/**
+ * The stack depends on relative not absolute time. Any mapping between the
+ * stack's real-time clock and absolute time and date is implementation-dependent.
+ */
+
+typedef struct {
+    OI_INT32 seconds;
+    OI_INT16 mseconds;
+} OI_TIME;
+
+/**
+ * Convert an OI_TIME to milliseconds.
+ *
+ * @param t  the time to convert
+ *
+ * @return the time in milliseconds
+ */
+OI_UINT32 OI_Time_ToMS(OI_TIME *t);
+
+
+/**
+ * This function compares two time values.
+ *
+ * @param T1 first time to compare.
+ *
+ * @param T2 second time to compare.
+ *
+ * @return
+ @verbatim
+     -1 if t1 < t2
+      0 if t1 = t2
+     +1 if t1 > t2
+ @endverbatim
+ */
+
+OI_INT16 OI_Time_Compare(OI_TIME *T1,
+                         OI_TIME *T2);
+
+
+/**
+ * This function returns the interval between two times to a granularity of 0.1 seconds.
+ *
+ * @param Sooner a time value more recent that Later
+ *
+ * @param Later a time value later than Sooner
+ *
+ * @note The result is an OI_INTERVAL value so this function only works for time intervals
+ * that are less than about 71 minutes.
+ *
+ * @return the time interval between the two times = (Later - Sooner)
+ */
+
+OI_INTERVAL OI_Time_Interval(OI_TIME *Sooner,
+                             OI_TIME *Later);
+
+
+
+/**
+ * This function returns the interval between two times to a granularity of milliseconds.
+ *
+ * @param Sooner a time value more recent that Later
+ *
+ * @param Later a time value later than Sooner
+ *
+ * @note The result is an OI_UINT32 value so this function only works for time intervals
+ * that are less than about 50 days.
+ *
+ * @return the time interval between the two times = (Later - Sooner)
+ */
+
+OI_UINT32 OI_Time_IntervalMsecs(OI_TIME *Sooner,
+                                OI_TIME *Later);
+
+
+
+/**
+ * This function answers the question, Have we reached or gone past the target time?
+ *
+ * @param pTargetTime   target time
+ *
+ * @return  TRUE means time now is at or past target time
+ *          FALSE means target time is still some time in the future
+ */
+
+OI_BOOL  OI_Time_NowReachedTime(OI_TIME *pTargetTime);
+
+/**
+ *  Convert seconds to the Link Manager 1.28-second units
+ *  Approximate by using 1.25 conversion factor.
+ */
+
+#define OI_SECONDS_TO_LM_TIME_UNITS(lmUnits) ((lmUnits)<4?(lmUnits):(lmUnits)-((lmUnits)>>2))
+
+
+/**
+ *  Convert Link Manager 1.28-second units to seconds.
+ *  Approximate by using 1.25 conversion factor.
+ */
+
+#define OI_LM_TIME_UNITS_TO_SECONDS(lmUnits) ((lmUnits) + ((lmUnits)>>2))
+
+#ifdef __cplusplus
+}
+#endif
+
+/**@}*/
+
+/* Include for OI_Time_Now() prototype
+ * Must be included at end to obtain OI_TIME typedef
+ */
+#include "oi_osinterface.h"
+
+/*****************************************************************************/
+#endif /* _OI_TIME_H */
+
diff --git a/rtkbt/code/bt/embdrv/sbc/decoder/include/oi_utils.h b/rtkbt/code/bt/embdrv/sbc/decoder/include/oi_utils.h
new file mode 100755
index 0000000..5272259
--- /dev/null
+++ b/rtkbt/code/bt/embdrv/sbc/decoder/include/oi_utils.h
@@ -0,0 +1,377 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 The Android Open Source Project
+ *  Copyright 2002 - 2004 Open Interface North America, Inc. All rights reserved.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+#ifndef _OI_UTILS_H
+#define _OI_UTILS_H
+/**
+ * @file
+ *
+ * This file provides the interface for utility functions.
+ * Among the utilities are strlen (string length), strcmp (string compare), and
+ * other string manipulation functions. These are provided for those plaforms
+ * where this functionality is not available in stdlib.
+ */
+
+/**********************************************************************************
+  $Revision: #1 $
+***********************************************************************************/
+
+#include <stdarg.h>
+#include "oi_common.h"
+#include "oi_string.h"
+#include "oi_bt_spec.h"
+
+/** \addtogroup Misc Miscellaneous APIs */
+/**@{*/
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * Opaque type for a callback function handle. See OI_ScheduleCallbackFunction()
+ */
+typedef OI_UINT32 OI_CALLBACK_HANDLE;
+
+
+/**
+ * Function prototype for a timed procedure callback.
+ *
+ * @param arg                 Value that was passed into the OI_ScheduleCallback() function
+ *
+ */
+typedef void (*OI_SCHEDULED_CALLBACK)(void *arg);
+
+
+/**
+ * Registers a function to be called when a timeout expires. This API uses BLUEmagic's internal
+ * function dispatch mechanism, so applications that make extensive use of this facility may need to
+ * increase the value of DispatchTableSize in the configuration block for the dispatcher (see
+ * oi_bt_stack_config.h).
+ *
+ * @param callbackFunction    The function that will be called when the timeout expires
+ *
+ * @param arg                 Value that will be returned as the parameter to the callback function.
+ *
+ * @param timeout             A timeout expressed in OI_INTERVALs (tenths of seconds). This can be
+ *                            zero in which case the callback function will be called as soon as
+ *                            possible.
+ *
+ * @param handle              NULL or a pointer receive the callback handle.
+ *
+ * @return                    OI_OK if the function was reqistered, or an error status.
+ */
+OI_STATUS OI_ScheduleCallbackFunction(OI_SCHEDULED_CALLBACK callbackFunction,
+                                      void                 *arg,
+                                      OI_INTERVAL           timeout,
+                                      OI_CALLBACK_HANDLE   *handle);
+
+
+/**
+ * Cancels a function registered with OI_ScheduleCallbackFunction() before its timer expires.
+ *
+ * @param handle              handle returned by  OI_ScheduleCallbackFunction().
+ *
+ * @return                    OI_OK if the function was cancelled, or an error status.
+ */
+OI_STATUS OI_CancelCallbackFunction(OI_CALLBACK_HANDLE handle);
+
+
+/**
+ * Registers a function to be called when a timeout expires. This version does not return a handle
+ * so can only be canceled by calling OI_CancelCallback().
+ *
+ * @param callbackFunction    The function that will be called when the timeout expires
+ *
+ * @param arg                 Value that will be returned as the parameter to the callback function.
+ *
+ * @param timeout             A timeout expressed in OI_INTERVALs (tenths of seconds). This can be
+ *                            zero in which case the callback function will be called as soon as
+ *                            possible.
+ *
+ * @return                    OI_OK if the function was reqistered, or an error status.
+ */
+#define OI_ScheduleCallback(f, a, t)  OI_ScheduleCallbackFunction(f, a, t, NULL);
+
+
+/**
+ * Cancels a function registered with OI_ScheduleCallback() before its timer expires. This
+ * function will cancel the first entry matches the indicated callback function pointer.
+ *
+ * @param callbackFunction    The function that was originally registered
+ *
+ * @return                    OI_OK if the function was cancelled, or an error status.
+ */
+OI_STATUS OI_CancelCallback(OI_SCHEDULED_CALLBACK callbackFunction);
+
+
+/**
+ * Parse a Bluetooth device address from the specified string.
+ *
+ * @param str   the string to parse
+ * @param addr  the parsed address, if successful
+ *
+ * @return TRUE if an address was successfully parsed, FALSE otherwise
+ */
+
+OI_BOOL OI_ParseBdAddr(const OI_CHAR *str,
+                       OI_BD_ADDR    *addr) ;
+
+/**
+ * Printf function for platforms which have no stdio or printf available.
+ * OI_Printf supports the basic formatting types, with the exception of
+ * floating point types. Additionally, OI_Printf supports several formats
+ * specific to BLUEmagic 3.0 software:
+ *
+ * \%!   prints the string for an #OI_STATUS value.
+ *       @code OI_Printf("There was an error %!", status); @endcode
+ *
+ * \%@   prints a hex dump of a buffer.
+ *       Requires a pointer to the buffer and a signed integer length
+ *       (0 for default length). If the buffer is large, only an excerpt will
+ *       be printed.
+ *       @code OI_Printf("Contents of buffer %@", buffer, sizeof(buffer)); @endcode
+ *
+ * \%:   prints a Bluetooth address in the form "HH:HH:HH:HH:HH:HH".
+ *       Requires a pointer to an #OI_BD_ADDR.
+ *       @code OI_Printf("Bluetooth address %:", &bdaddr); @endcode
+ *
+ * \%^   decodes and prints a data element as formatted XML.
+ *       Requires a pointer to an #OI_DATAELEM.
+ *       @code OI_Printf("Service attribute list is:\n%^", &attributes); @endcode
+ *
+ * \%/   prints the base file name of a path, that is, the final substring
+ *       following a '/' or '\\' character. Requires a pointer to a null
+ *       terminated string.
+ *       @code OI_Printf("File %/", "c:\\dir1\\dir2\\file.txt"); @endcode
+ *
+ * \%~   prints a string, escaping characters as needed to display it in
+ *       ASCII. Requires a pointer to an #OI_PSTR and an #OI_UNICODE_ENCODING
+ *       parameter.
+ *       @code OI_Printf("Identifier %~", &id, OI_UNICODE_UTF16_BE); @endcode
+ *
+ * \%[   inserts an ANSI color escape sequence. Requires a single character
+ *       identifying the color to select. Colors are red (r/R), green (g/G),
+ *       blue (b/B), yellow (y/Y), cyan (c/C), magenta (m/M), white (W),
+ *       light-gray (l/L), dark-gray (d/D), and black (0). The lower case is
+ *       dim, the upper case is bright (except in the case of light-gray and
+ *       dark-gray, where bright and dim are identical). Any other value will
+ *       select the default color.
+ *       @code OI_Printf("%[red text %[black %[normal\n", 'r', '0', 0); @endcode
+ *
+ * \%a   same as \%s, except '\\r' and '\\n' are output as "<cr>" and "<lf>".
+ *       \%?a is valid, but \%la is not.
+ *
+ * \%b   prints an integer in base 2.
+ *       @code OI_Printf("Bits are %b", I); @endcode
+ *
+ * \%lb  prints a long integer in base 2.
+ *
+ * \%?b  prints the least significant N bits of an integer (or long integer)
+ *       in base 2. Requires the integer and a length N.
+ *       @code OI_Printf("Bottom 4 bits are: %?b", I, 4); @endcode
+ *
+ * \%B   prints an integer as boolean text, "TRUE" or "FALSE".
+ *       @code OI_Printf("The value 0 is %B, the value 1 is %B", 0, 1); @endcode
+ *
+ * \%?s  prints a substring up to a specified maximum length.
+ *       Requires a pointer to a string and a length parameter.
+ *       @code OI_Printf("String prefix is %?s", str, 3); @endcode
+ *
+ * \%ls  same as \%S.
+ *
+ * \%S   prints a UTF16 string as UTF8 (plain ASCII, plus 8-bit char sequences
+ *       where needed). Requires a pointer to #OI_CHAR16. \%?S is valid. The
+ *       length parameter is in OI_CHAR16 characters.
+ *
+ * \%T   prints time, formatted as "secs.msecs".
+ *       Requires pointer to #OI_TIME struct, NULL pointer prints current time.
+ *       @code OI_Printf("The time now is %T", NULL); @endcode
+ *
+ *  @param format   The format string
+ *
+ */
+void OI_Printf(const OI_CHAR *format, ...);
+
+
+/**
+ * Var-args version OI_Printf
+ *
+ * @param format   Same as for OI_Printf.
+ *
+ * @param argp     Var-args list.
+ */
+void OI_VPrintf(const OI_CHAR *format, va_list argp);
+
+
+/**
+ * Writes a formatted string to a buffer. This function supports the same format specifiers as
+ * OI_Printf().
+ *
+ * @param buffer   Destination buffer for the formatted string.
+ *
+ * @param bufLen   The length of the destination buffer.
+ *
+ * @param format   The format string
+ *
+ * @return   Number of characters written or -1 in the case of an error.
+ */
+OI_INT32 OI_SNPrintf(OI_CHAR *buffer,
+                    OI_UINT16 bufLen,
+                    const OI_CHAR* format, ...);
+
+
+/**
+ * Var-args version OI_SNPrintf
+ *
+ * @param buffer   Destination buffer for the formatted string.
+ *
+ * @param bufLen   The length of the destination buffer.
+ *
+ * @param format   The format string
+ *
+ * @param argp     Var-args list.
+ *
+ * @return   Number of characters written or -1 in the case of an error.
+ */
+OI_INT32 OI_VSNPrintf(OI_CHAR *buffer,
+                     OI_UINT16 bufLen,
+                     const OI_CHAR *format, va_list argp);
+
+
+/**
+ * Convert a string to an integer.
+ *
+ * @param str  the string to parse
+ *
+ * @return the integer value of the string or 0 if the string could not be parsed
+ */
+OI_INT OI_atoi(const OI_CHAR *str);
+
+
+/**
+ * Parse a signed integer in a string.
+ *
+ * Skips leading whitespace (space and tabs only) and parses a decimal or hex string. Hex string
+ * must be prefixed by "0x". Returns pointer to first character following the integer. Returns the
+ * pointer passed in if the string does not describe an integer.
+ *
+ * @param str    String to parse.
+ *
+ * @param val    Pointer to receive the parsed integer value.
+ *
+ * @return       A pointer to the first character following the integer or the pointer passed in.
+ */
+const OI_CHAR* OI_ScanInt(const OI_CHAR *str,
+                          OI_INT32 *val);
+
+
+/**
+ * Parse an unsigned integer in a string.
+ *
+ * Skips leading whitespace (space and tabs only) and parses a decimal or hex string. Hex string
+ * must be prefixed by "0x". Returns pointer to first character following the integer. Returns the
+ * pointer passed in if the string does not describe an integer.
+ *
+ * @param str    String to parse.
+ *
+ * @param val    Pointer to receive the parsed unsigned integer value.
+ *
+ * @return       A pointer to the first character following the unsigned integer or the pointer passed in.
+ */
+const OI_CHAR* OI_ScanUInt(const OI_CHAR *str,
+                           OI_UINT32 *val);
+
+/**
+ * Parse a whitespace delimited substring out of a string.
+ *
+ * @param str     Input string to parse.
+ * @param outStr  Buffer to return the substring
+ * @param len     Length of outStr
+ *
+ *
+ * @return       A pointer to the first character following the substring or the pointer passed in.
+ */
+const OI_CHAR* OI_ScanStr(const OI_CHAR *str,
+                          OI_CHAR *outStr,
+                          OI_UINT16 len);
+
+
+/**
+ * Parse a string for one of a set of alternative value. Skips leading whitespace (space and tabs
+ * only) and parses text matching one of the alternative strings. Returns pointer to first character
+ * following the matched text.
+ *
+ * @param str    String to parse.
+ *
+ * @param alts   Alternative matching strings separated by '|'
+ *
+ * @param index  Pointer to receive the index of the matching alternative, return value is -1 if
+ *               there is no match.
+ *
+ * @return       A pointer to the first character following the matched value or the pointer passed in
+ *               if there was no matching text.
+ */
+const OI_CHAR* OI_ScanAlt(const OI_CHAR *str,
+                          const OI_CHAR *alts,
+                          OI_INT *index);
+
+/**
+ * Parse a string for a BD Addr. Skips leading whitespace (space and tabs only) and parses a
+ * Bluetooth device address with nibbles optionally separated by colons. Return pointet to first
+ * character following the BD Addr.
+ *
+ * @param str    String to parse.
+ *
+ * @param addr   Pointer to receive the Bluetooth device address
+ *
+ * @return       A pointer to the first character following the BD Addr or the pointer passed in.
+ */
+const OI_CHAR* OI_ScanBdAddr(const OI_CHAR *str,
+                             OI_BD_ADDR *addr);
+
+
+/** Get a character from a digit integer value (0 - 9). */
+#define OI_DigitToChar(d) ((d) + '0')
+
+/**
+ * Determine Maximum and Minimum between two arguments.
+ *
+ * @param a  1st value
+ * @param b  2nd value
+ *
+ * @return the max or min value between a & b
+ */
+#define OI_MAX(a, b) (((a) < (b)) ? (b) : (a) )
+#define OI_MIN(a, b) (((a) > (b)) ? (b) : (a) )
+
+/**
+ * Compare two BD_ADDRs
+ * SAME_BD_ADDR - Boolean: TRUE if they are the same address
+ */
+
+#define SAME_BD_ADDR(x, y)      (0 == OI_MemCmp((x),(y),OI_BD_ADDR_BYTE_SIZE) )
+
+#ifdef __cplusplus
+}
+#endif
+
+/**@}*/
+
+#endif /* _OI_UTILS_H */
+
diff --git a/rtkbt/code/bt/embdrv/sbc/decoder/srce/alloc.c b/rtkbt/code/bt/embdrv/sbc/decoder/srce/alloc.c
new file mode 100755
index 0000000..f8723f2
--- /dev/null
+++ b/rtkbt/code/bt/embdrv/sbc/decoder/srce/alloc.c
@@ -0,0 +1,78 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 The Android Open Source Project
+ *  Copyright 2003 - 2004 Open Interface North America, Inc. All rights reserved.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#include <stdlib.h>
+#include <oi_codec_sbc_private.h>
+
+/**********************************************************************************
+  $Revision: #1 $
+***********************************************************************************/
+
+PRIVATE OI_STATUS OI_CODEC_SBC_Alloc(OI_CODEC_SBC_COMMON_CONTEXT *common,
+                                     OI_UINT32 *codecDataAligned,
+                                     OI_UINT32 codecDataBytes,
+                                     OI_UINT8 maxChannels,
+                                     OI_UINT8 pcmStride)
+{
+    int i;
+    size_t filterBufferCount;
+    size_t subdataSize;
+    OI_BYTE *codecData = (OI_BYTE*)codecDataAligned;
+
+    if (maxChannels < 1 || maxChannels > 2) {
+        return OI_STATUS_INVALID_PARAMETERS;
+    }
+
+    if (pcmStride < 1 || pcmStride > maxChannels) {
+        return OI_STATUS_INVALID_PARAMETERS;
+    }
+
+    common->maxChannels = maxChannels;
+    common->pcmStride = pcmStride;
+
+    /* Compute sizes needed for the memory regions, and bail if we don't have
+     * enough memory for them. */
+    subdataSize = maxChannels * sizeof(common->subdata[0]) * SBC_MAX_BANDS * SBC_MAX_BLOCKS;
+    if (subdataSize > codecDataBytes) {
+        return OI_STATUS_OUT_OF_MEMORY;
+    }
+
+    filterBufferCount = (codecDataBytes - subdataSize) / (sizeof(common->filterBuffer[0][0]) * SBC_MAX_BANDS * maxChannels);
+    if (filterBufferCount < SBC_CODEC_MIN_FILTER_BUFFERS) {
+        return OI_STATUS_OUT_OF_MEMORY;
+    }
+    common->filterBufferLen = filterBufferCount * SBC_MAX_BANDS;
+
+    /* Allocate memory for the subband data */
+    common->subdata = (OI_INT32*)codecData;
+    codecData += subdataSize;
+    OI_ASSERT(codecDataBytes >= subdataSize);
+    codecDataBytes -= subdataSize;
+
+    /* Allocate memory for the synthesis buffers */
+    for (i = 0; i < maxChannels; ++i) {
+        size_t allocSize = common->filterBufferLen * sizeof(common->filterBuffer[0][0]);
+        common->filterBuffer[i] = (SBC_BUFFER_T*)codecData;
+        OI_ASSERT(codecDataBytes >= allocSize);
+        codecData += allocSize;
+        codecDataBytes -= allocSize;
+    }
+
+    return OI_OK;
+}
diff --git a/rtkbt/code/bt/embdrv/sbc/decoder/srce/bitalloc-sbc.c b/rtkbt/code/bt/embdrv/sbc/decoder/srce/bitalloc-sbc.c
new file mode 100755
index 0000000..8120298
--- /dev/null
+++ b/rtkbt/code/bt/embdrv/sbc/decoder/srce/bitalloc-sbc.c
@@ -0,0 +1,165 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 The Android Open Source Project
+ *  Copyright 2003 - 2004 Open Interface North America, Inc. All rights reserved.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/**********************************************************************************
+  $Revision: #1 $
+***********************************************************************************/
+
+/** @file
+@ingroup codec_internal
+*/
+
+/**@addgroup codec_internal*/
+/**@{*/
+
+#include <oi_codec_sbc_private.h>
+
+static void dualBitAllocation(OI_CODEC_SBC_COMMON_CONTEXT *common)
+{
+    OI_UINT bitcountL;
+    OI_UINT bitcountR;
+    OI_UINT bitpoolPreferenceL = 0;
+    OI_UINT bitpoolPreferenceR = 0;
+    BITNEED_UNION1 bitneedsL;
+    BITNEED_UNION1 bitneedsR;
+
+    bitcountL = computeBitneed(common, bitneedsL.uint8, 0, &bitpoolPreferenceL);
+    bitcountR = computeBitneed(common, bitneedsR.uint8, 1, &bitpoolPreferenceR);
+
+    oneChannelBitAllocation(common, &bitneedsL, 0, bitcountL);
+    oneChannelBitAllocation(common, &bitneedsR, 1, bitcountR);
+}
+
+static void stereoBitAllocation(OI_CODEC_SBC_COMMON_CONTEXT *common)
+{
+    const OI_UINT nrof_subbands = common->frameInfo.nrof_subbands;
+    BITNEED_UNION2 bitneeds;
+    OI_UINT excess;
+    OI_INT bitadjust;
+    OI_UINT bitcount;
+    OI_UINT sbL;
+    OI_UINT sbR;
+    OI_UINT bitpoolPreference = 0;
+
+    bitcount = computeBitneed(common, &bitneeds.uint8[0], 0, &bitpoolPreference);
+    bitcount += computeBitneed(common, &bitneeds.uint8[nrof_subbands], 1, &bitpoolPreference);
+
+    {
+        OI_UINT ex;
+        bitadjust = adjustToFitBitpool(common->frameInfo.bitpool, bitneeds.uint32, 2 * nrof_subbands, bitcount, &ex);
+        /* We want the compiler to put excess into a register */
+        excess = ex;
+    }
+    sbL = 0;
+    sbR = nrof_subbands;
+    while (sbL < nrof_subbands) {
+        excess = allocAdjustedBits(&common->bits.uint8[sbL], bitneeds.uint8[sbL] + bitadjust, excess);
+        ++sbL;
+        excess = allocAdjustedBits(&common->bits.uint8[sbR], bitneeds.uint8[sbR] + bitadjust, excess);
+        ++sbR;
+    }
+    sbL = 0;
+    sbR = nrof_subbands;
+    while (excess) {
+        excess = allocExcessBits(&common->bits.uint8[sbL], excess);
+        ++sbL;
+        if (!excess) {
+            break;
+        }
+        excess = allocExcessBits(&common->bits.uint8[sbR], excess);
+        ++sbR;
+    }
+
+}
+
+static const BIT_ALLOC balloc[] = {
+    monoBitAllocation,    /* SBC_MONO */
+    dualBitAllocation,    /* SBC_DUAL_CHANNEL */
+    stereoBitAllocation,  /* SBC_STEREO */
+    stereoBitAllocation   /* SBC_JOINT_STEREO */
+};
+
+
+PRIVATE void OI_SBC_ComputeBitAllocation(OI_CODEC_SBC_COMMON_CONTEXT *common)
+{
+    OI_ASSERT(common->frameInfo.bitpool <= OI_SBC_MaxBitpool(&common->frameInfo));
+    OI_ASSERT(common->frameInfo.mode < OI_ARRAYSIZE(balloc));
+
+    /*
+     * Using an array of function pointers prevents the compiler from creating a suboptimal
+     * monolithic inlined bit allocation function.
+     */
+    balloc[common->frameInfo.mode](common);
+}
+
+OI_UINT32 OI_CODEC_SBC_CalculateBitrate(OI_CODEC_SBC_FRAME_INFO *frame)
+{
+    return internal_CalculateBitrate(frame);
+}
+
+/*
+ * Return the current maximum bitneed and clear it.
+ */
+OI_UINT8 OI_CODEC_SBC_GetMaxBitneed(OI_CODEC_SBC_COMMON_CONTEXT *common)
+{
+    OI_UINT8 max = common->maxBitneed;
+
+    common->maxBitneed = 0;
+    return max;
+}
+
+/*
+ * Calculates the bitpool size for a given frame length
+ */
+OI_UINT16 OI_CODEC_SBC_CalculateBitpool(OI_CODEC_SBC_FRAME_INFO *frame,
+                                        OI_UINT16 frameLen)
+{
+    OI_UINT16 nrof_subbands = frame->nrof_subbands;
+    OI_UINT16 nrof_blocks = frame->nrof_blocks;
+    OI_UINT16 hdr;
+    OI_UINT16 bits;
+
+    if (frame->mode == SBC_JOINT_STEREO) {
+        hdr = 9 * nrof_subbands;
+    } else {
+        if (frame->mode == SBC_MONO) {
+            hdr = 4 * nrof_subbands;
+        } else {
+            hdr = 8 * nrof_subbands;
+        }
+        if (frame->mode == SBC_DUAL_CHANNEL) {
+            nrof_blocks *= 2;
+        }
+    }
+    bits = 8 * (frameLen - SBC_HEADER_LEN) - hdr;
+    return DIVIDE(bits, nrof_blocks);
+}
+
+OI_UINT16 OI_CODEC_SBC_CalculatePcmBytes(OI_CODEC_SBC_COMMON_CONTEXT *common)
+{
+    return sizeof(OI_INT16) * common->pcmStride * common->frameInfo.nrof_subbands * common->frameInfo.nrof_blocks;
+}
+
+
+OI_UINT16 OI_CODEC_SBC_CalculateFramelen(OI_CODEC_SBC_FRAME_INFO *frame)
+{
+    return internal_CalculateFramelen(frame);
+}
+
+/**@}*/
diff --git a/rtkbt/code/bt/embdrv/sbc/decoder/srce/bitalloc.c b/rtkbt/code/bt/embdrv/sbc/decoder/srce/bitalloc.c
new file mode 100755
index 0000000..544c470
--- /dev/null
+++ b/rtkbt/code/bt/embdrv/sbc/decoder/srce/bitalloc.c
@@ -0,0 +1,392 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 The Android Open Source Project
+ *  Copyright 2003 - 2004 Open Interface North America, Inc. All rights reserved.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/**********************************************************************************
+  $Revision: #1 $
+ ***********************************************************************************/
+
+/**
+@file
+
+The functions in this file relate to the allocation of available bits to
+subbands within the SBC/eSBC frame, along with support functions for computing
+frame length and bitrate.
+
+@ingroup codec_internal
+*/
+
+/**
+@addtogroup codec_internal
+@{
+*/
+
+#include "oi_utils.h"
+#include <oi_codec_sbc_private.h>
+
+OI_UINT32 OI_SBC_MaxBitpool(OI_CODEC_SBC_FRAME_INFO *frame)
+{
+    switch (frame->mode) {
+        case SBC_MONO:
+        case SBC_DUAL_CHANNEL:
+            return 16 * frame->nrof_subbands;
+        case SBC_STEREO:
+        case SBC_JOINT_STEREO:
+            return 32 * frame->nrof_subbands;
+    }
+
+    ERROR(("Invalid frame mode %d", frame->mode));
+    OI_ASSERT(FALSE);
+    return 0; /* Should never be reached */
+}
+
+
+PRIVATE OI_UINT16 internal_CalculateFramelen(OI_CODEC_SBC_FRAME_INFO *frame)
+{
+    OI_UINT16 nbits = frame->nrof_blocks * frame->bitpool;
+    OI_UINT16 nrof_subbands = frame->nrof_subbands;
+    OI_UINT16 result = nbits;
+
+    if (frame->mode == SBC_JOINT_STEREO) {
+        result += nrof_subbands + (8 * nrof_subbands);
+    } else {
+        if (frame->mode == SBC_DUAL_CHANNEL) { result += nbits; }
+        if (frame->mode == SBC_MONO) { result += 4*nrof_subbands; } else { result += 8*nrof_subbands; }
+    }
+    return SBC_HEADER_LEN + (result + 7) / 8;
+}
+
+
+PRIVATE OI_UINT32 internal_CalculateBitrate(OI_CODEC_SBC_FRAME_INFO *frame)
+{
+    OI_UINT blocksbands;
+    blocksbands = frame->nrof_subbands * frame->nrof_blocks;
+
+    return DIVIDE(8 * internal_CalculateFramelen(frame) * frame->frequency, blocksbands);
+}
+
+
+INLINE OI_UINT16 OI_SBC_CalculateFrameAndHeaderlen(OI_CODEC_SBC_FRAME_INFO *frame, OI_UINT *headerLen_)
+{
+    OI_UINT headerLen = SBC_HEADER_LEN + frame->nrof_subbands * frame->nrof_channels/2;
+
+    if (frame->mode == SBC_JOINT_STEREO) { headerLen++; }
+
+    *headerLen_ = headerLen;
+    return internal_CalculateFramelen(frame);
+}
+
+
+#define MIN(x, y)  ((x) < (y) ? (x) : (y))
+
+
+/*
+ * Computes the bit need for each sample and as also returns a counts of bit needs that are greater
+ * than one. This count is used in the first phase of bit allocation.
+ *
+ * We also compute a preferred bitpool value that this is the minimum bitpool needed to guarantee
+ * lossless representation of the audio data. The preferred bitpool may be larger than the bits
+ * actually required but the only input we have are the scale factors. For example, it takes 2 bits
+ * to represent values in the range -1 .. +1 but the scale factor is 0. To guarantee lossless
+ * representation we add 2 to each scale factor and sum them to come up with the preferred bitpool.
+ * This is not ideal because 0 requires 0 bits but we currently have no way of knowing this.
+ *
+ * @param bitneed       Array to return bitneeds for each subband
+ *
+ * @param ch            Channel 0 or 1
+ *
+ * @param preferredBitpool  Returns the number of reserved bits
+ *
+ * @return              The SBC bit need
+ *
+ */
+OI_UINT computeBitneed(OI_CODEC_SBC_COMMON_CONTEXT *common,
+                              OI_UINT8 *bitneeds,
+                              OI_UINT ch,
+                              OI_UINT *preferredBitpool)
+{
+    static const OI_INT8 offset4[4][4] = {
+        { -1, 0, 0, 0 },
+        { -2, 0, 0, 1 },
+        { -2, 0, 0, 1 },
+        { -2, 0, 0, 1 }
+    };
+
+    static const OI_INT8 offset8[4][8] = {
+        { -2, 0, 0, 0, 0, 0, 0, 1 },
+        { -3, 0, 0, 0, 0, 0, 1, 2 },
+        { -4, 0, 0, 0, 0, 0, 1, 2 },
+        { -4, 0, 0, 0, 0, 0, 1, 2 }
+    };
+
+    const OI_UINT nrof_subbands = common->frameInfo.nrof_subbands;
+    OI_UINT sb;
+    OI_INT8 *scale_factor = &common->scale_factor[ch ? nrof_subbands : 0];
+    OI_UINT bitcount = 0;
+    OI_UINT8 maxBits = 0;
+    OI_UINT8 prefBits = 0;
+
+    if (common->frameInfo.alloc == SBC_SNR) {
+        for (sb = 0; sb < nrof_subbands; sb++) {
+            OI_INT bits = scale_factor[sb];
+            if (bits > maxBits) {
+                maxBits = bits;
+            }
+            if ((bitneeds[sb] = bits) > 1) {
+                bitcount += bits;
+            }
+            prefBits += 2 + bits;
+        }
+    } else {
+        const OI_INT8 *offset;
+        if (nrof_subbands == 4) {
+            offset = offset4[common->frameInfo.freqIndex];
+        } else {
+            offset = offset8[common->frameInfo.freqIndex];
+        }
+        for (sb = 0; sb < nrof_subbands; sb++) {
+            OI_INT bits = scale_factor[sb];
+            if (bits > maxBits) {
+                maxBits = bits;
+            }
+            prefBits += 2 + bits;
+            if (bits) {
+                bits -= offset[sb];
+                if (bits > 0) {
+                    bits /= 2;
+                }
+                bits += 5;
+            }
+            if ((bitneeds[sb] = bits) > 1) {
+                bitcount += bits;
+            }
+        }
+    }
+    common->maxBitneed = OI_MAX(maxBits, common->maxBitneed);
+    *preferredBitpool += prefBits;
+    return bitcount;
+}
+
+
+/*
+ * Explanation of the adjustToFitBitpool inner loop.
+ *
+ * The inner loop computes the effect of adjusting the bit allocation up or
+ * down. Allocations must be 0 or in the range 2..16. This is accomplished by
+ * the following code:
+ *
+ *           for (s = bands - 1; s >= 0; --s) {
+ *              OI_INT bits = bitadjust + bitneeds[s];
+ *              bits = bits < 2 ? 0 : bits;
+ *              bits = bits > 16 ? 16 : bits;
+ *              count += bits;
+ *          }
+ *
+ * This loop can be optimized to perform 4 operations at a time as follows:
+ *
+ * Adjustment is computed as a 7 bit signed value and added to the bitneed.
+ *
+ * Negative allocations are zeroed by masking. (n & 0x40) >> 6 puts the
+ * sign bit into bit 0, adding this to 0x7F give us a mask of 0x80
+ * for -ve values and 0x7F for +ve values.
+ *
+ * n &= 0x7F + (n & 0x40) >> 6)
+ *
+ * Allocations greater than 16 are truncated to 16. Adjusted allocations are in
+ * the range 0..31 so we know that bit 4 indicates values >= 16. We use this bit
+ * to create a mask that zeroes bits 0 .. 3 if bit 4 is set.
+ *
+ * n &= (15 + (n >> 4))
+ *
+ * Allocations of 1 are disallowed. Add and shift creates a mask that
+ * eliminates the illegal value
+ *
+ * n &= ((n + 14) >> 4) | 0x1E
+ *
+ * These operations can be performed in 8 bits without overflowing so we can
+ * operate on 4 values at once.
+ */
+
+
+/*
+ * Encoder/Decoder
+ *
+ * Computes adjustment +/- of bitneeds to fill bitpool and returns overall
+ * adjustment and excess bits.
+ *
+ * @param bitpool   The bitpool we have to work within
+ *
+ * @param bitneeds  An array of bit needs (more acturately allocation prioritities) for each
+ *                  subband across all blocks in the SBC frame
+ *
+ * @param subbands  The number of subbands over which the adkustment is calculated. For mono and
+ *                  dual mode this is 4 or 8, for stereo or joint stereo this is 8 or 16.
+ *
+ * @param bitcount  A starting point for the adjustment
+ *
+ * @param excess    Returns the excess bits after the adjustment
+ *
+ * @return   The adjustment.
+ */
+OI_INT adjustToFitBitpool(const OI_UINT bitpool,
+                                 OI_UINT32 *bitneeds,
+                                 const OI_UINT subbands,
+                                 OI_UINT bitcount,
+                                 OI_UINT *excess)
+{
+    OI_INT maxBitadjust = 0;
+    OI_INT bitadjust = (bitcount > bitpool) ? -8 : 8;
+    OI_INT chop = 8;
+
+    /*
+     * This is essentially a binary search for the optimal adjustment value.
+     */
+    while ((bitcount != bitpool) && chop) {
+        OI_UINT32 total = 0;
+        OI_UINT count;
+        OI_UINT32 adjust4;
+        OI_INT i;
+
+        adjust4 = bitadjust & 0x7F;
+        adjust4 |= (adjust4 << 8);
+        adjust4 |= (adjust4 << 16);
+
+        for (i = (subbands / 4 - 1); i >= 0; --i) {
+            OI_UINT32 mask;
+            OI_UINT32 n = bitneeds[i] + adjust4;
+            mask = 0x7F7F7F7F + ((n & 0x40404040) >> 6);
+            n &= mask;
+            mask = 0x0F0F0F0F + ((n & 0x10101010) >> 4);
+            n &= mask;
+            mask = (((n + 0x0E0E0E0E) >> 4) | 0x1E1E1E1E);
+            n &= mask;
+            total += n;
+        }
+
+        count = (total & 0xFFFF) + (total >> 16);
+        count = (count & 0xFF) + (count >> 8);
+
+        chop >>= 1;
+        if (count > bitpool) {
+            bitadjust -= chop;
+        } else {
+            maxBitadjust = bitadjust;
+            bitcount = count;
+            bitadjust += chop;
+        }
+    }
+
+    *excess = bitpool - bitcount;
+
+    return maxBitadjust;
+}
+
+
+/*
+ * The bit allocator trys to avoid single bit allocations except as a last resort. So in the case
+ * where a bitneed of 1 was passed over during the adsjustment phase 2 bits are now allocated.
+ */
+INLINE OI_INT allocAdjustedBits(OI_UINT8 *dest,
+                                OI_INT bits,
+                                OI_INT excess)
+{
+    if (bits < 16) {
+        if (bits > 1) {
+            if (excess) {
+                ++bits;
+                --excess;
+            }
+        } else if ((bits == 1) && (excess > 1)) {
+            bits = 2;
+            excess -= 2;
+        } else {
+            bits  = 0;
+        }
+    } else {
+        bits = 16;
+    }
+    *dest = (OI_UINT8)bits;
+    return excess;
+}
+
+
+/*
+ * Excess bits not allocated by allocaAdjustedBits are allocated round-robin.
+ */
+INLINE OI_INT allocExcessBits(OI_UINT8 *dest,
+                              OI_INT excess)
+{
+    if (*dest < 16) {
+        *dest += 1;
+        return excess - 1;
+    } else {
+        return excess;
+    }
+}
+
+void oneChannelBitAllocation(OI_CODEC_SBC_COMMON_CONTEXT *common,
+                                    BITNEED_UNION1 *bitneeds,
+                                    OI_UINT ch,
+                                    OI_UINT bitcount)
+{
+    const OI_UINT8 nrof_subbands = common->frameInfo.nrof_subbands;
+    OI_UINT excess;
+    OI_UINT sb;
+    OI_INT bitadjust;
+    OI_UINT8 RESTRICT *allocBits;
+
+
+    {
+        OI_UINT ex;
+        bitadjust = adjustToFitBitpool(common->frameInfo.bitpool, bitneeds->uint32, nrof_subbands, bitcount, &ex);
+        /* We want the compiler to put excess into a register */
+        excess = ex;
+    }
+
+    /*
+     * Allocate adjusted bits
+     */
+    allocBits = &common->bits.uint8[ch ? nrof_subbands : 0];
+
+    sb = 0;
+    while (sb < nrof_subbands) {
+        excess = allocAdjustedBits(&allocBits[sb], bitneeds->uint8[sb] + bitadjust, excess);
+        ++sb;
+    }
+    sb = 0;
+    while (excess) {
+        excess = allocExcessBits(&allocBits[sb], excess);
+        ++sb;
+    }
+}
+
+
+void monoBitAllocation(OI_CODEC_SBC_COMMON_CONTEXT *common)
+{
+    BITNEED_UNION1 bitneeds;
+    OI_UINT bitcount;
+    OI_UINT bitpoolPreference = 0;
+
+    bitcount = computeBitneed(common, bitneeds.uint8, 0, &bitpoolPreference);
+
+    oneChannelBitAllocation(common, &bitneeds, 0, bitcount);
+}
+
+/**
+@}
+*/
diff --git a/rtkbt/code/bt/embdrv/sbc/decoder/srce/bitstream-decode.c b/rtkbt/code/bt/embdrv/sbc/decoder/srce/bitstream-decode.c
new file mode 100755
index 0000000..7eb2a90
--- /dev/null
+++ b/rtkbt/code/bt/embdrv/sbc/decoder/srce/bitstream-decode.c
@@ -0,0 +1,92 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 The Android Open Source Project
+ *  Copyright 2003 - 2004 Open Interface North America, Inc. All rights reserved.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/**********************************************************************************
+  $Revision: #1 $
+***********************************************************************************/
+
+/**
+@file
+Functions for manipulating input bitstreams.
+
+@ingroup codec_internal
+*/
+
+/**
+@addtogroup codec_internal
+@{
+*/
+
+#include "oi_stddefs.h"
+#include "oi_bitstream.h"
+#include "oi_assert.h"
+
+PRIVATE void OI_BITSTREAM_ReadInit(OI_BITSTREAM *bs,
+                                   const OI_BYTE *buffer)
+{
+    bs->value = ((OI_INT32)buffer[0] << 16) | ((OI_INT32)buffer[1] << 8) | (buffer[2]);
+    bs->ptr.r = buffer + 3;
+    bs->bitPtr = 8;
+}
+
+PRIVATE OI_UINT32 OI_BITSTREAM_ReadUINT(OI_BITSTREAM *bs, OI_UINT bits)
+{
+    OI_UINT32 result;
+
+    OI_BITSTREAM_READUINT(result, bits, bs->ptr.r, bs->value, bs->bitPtr);
+
+    return result;
+}
+
+PRIVATE OI_UINT8 OI_BITSTREAM_ReadUINT4Aligned(OI_BITSTREAM *bs)
+{
+    OI_UINT32 result;
+
+    OI_ASSERT(bs->bitPtr < 16);
+    OI_ASSERT(bs->bitPtr % 4 == 0);
+
+    if (bs->bitPtr == 8) {
+        result = bs->value << 8;
+        bs->bitPtr = 12;
+    } else {
+        result = bs->value << 12;
+        bs->value = (bs->value << 8) | *bs->ptr.r++;
+        bs->bitPtr = 8;
+    }
+    result >>= 28;
+    OI_ASSERT(result < (1u << 4));
+    return (OI_UINT8)result;
+}
+
+PRIVATE OI_UINT8 OI_BITSTREAM_ReadUINT8Aligned(OI_BITSTREAM *bs)
+{
+    OI_UINT32 result;
+    OI_ASSERT(bs->bitPtr == 8);
+
+    result = bs->value >> 16;
+    bs->value = (bs->value << 8) | *bs->ptr.r++;
+
+    return (OI_UINT8)result;
+}
+
+/**
+@}
+*/
+
+
diff --git a/rtkbt/code/bt/embdrv/sbc/decoder/srce/decoder-oina.c b/rtkbt/code/bt/embdrv/sbc/decoder/srce/decoder-oina.c
new file mode 100755
index 0000000..93d05ea
--- /dev/null
+++ b/rtkbt/code/bt/embdrv/sbc/decoder/srce/decoder-oina.c
@@ -0,0 +1,140 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 The Android Open Source Project
+ *  Copyright 2006 Open Interface North America, Inc. All rights reserved.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/**********************************************************************************
+  $Revision: #1 $
+ ***********************************************************************************/
+
+/**
+@file
+This file exposes OINA-specific interfaces to decoder functions.
+
+@ingroup codec_internal
+*/
+
+/**
+@addtogroup codec_internal
+@{
+*/
+
+
+#include <oi_codec_sbc_private.h>
+
+OI_STATUS OI_CODEC_SBC_DecoderConfigureRaw(OI_CODEC_SBC_DECODER_CONTEXT *context,
+                                           OI_BOOL enhanced,
+                                           OI_UINT8 frequency,
+                                           OI_UINT8 mode,
+                                           OI_UINT8 subbands,
+                                           OI_UINT8 blocks,
+                                           OI_UINT8 alloc,
+                                           OI_UINT8 maxBitpool)
+{
+    if (frequency > SBC_FREQ_48000) {
+        return OI_STATUS_INVALID_PARAMETERS;
+    }
+
+    if (enhanced) {
+#ifdef SBC_ENHANCED
+        if (subbands != SBC_SUBBANDS_8) {
+            return OI_STATUS_INVALID_PARAMETERS;
+        }
+#else
+        return OI_STATUS_INVALID_PARAMETERS;
+#endif
+    }
+
+    if (mode > SBC_JOINT_STEREO) {
+        return OI_STATUS_INVALID_PARAMETERS;
+    }
+
+    if (subbands > SBC_SUBBANDS_8) {
+        return OI_STATUS_INVALID_PARAMETERS;
+    }
+
+    if (blocks > SBC_BLOCKS_16) {
+        return OI_STATUS_INVALID_PARAMETERS;
+    }
+
+    if (alloc > SBC_SNR) {
+        return OI_STATUS_INVALID_PARAMETERS;
+    }
+
+#ifdef SBC_ENHANCED
+    context->common.frameInfo.enhanced = enhanced;
+#else
+    context->common.frameInfo.enhanced = FALSE;
+#endif
+    context->common.frameInfo.freqIndex = frequency;
+    context->common.frameInfo.mode = mode;
+    context->common.frameInfo.subbands = subbands;
+    context->common.frameInfo.blocks = blocks;
+    context->common.frameInfo.alloc = alloc;
+    context->common.frameInfo.bitpool = maxBitpool;
+
+    OI_SBC_ExpandFrameFields(&context->common.frameInfo);
+
+    if (context->common.frameInfo.nrof_channels >= context->common.pcmStride) {
+        return OI_STATUS_INVALID_PARAMETERS;
+    }
+
+    return OI_OK;
+}
+
+
+
+OI_STATUS OI_CODEC_SBC_DecodeRaw(OI_CODEC_SBC_DECODER_CONTEXT *context,
+                                 OI_UINT8 bitpool,
+                                 const OI_BYTE **frameData,
+                                 OI_UINT32 *frameBytes,
+                                 OI_INT16 *pcmData,
+                                 OI_UINT32 *pcmBytes)
+{
+    return internal_DecodeRaw(context,
+                              bitpool,
+                              frameData,
+                              frameBytes,
+                              pcmData,
+                              pcmBytes);
+}
+
+OI_STATUS OI_CODEC_SBC_DecoderLimit(OI_CODEC_SBC_DECODER_CONTEXT *context,
+                                    OI_BOOL                       enhanced,
+                                    OI_UINT8                      subbands)
+{
+	if (enhanced)
+	{
+#ifdef SBC_ENHANCED
+        context->enhancedEnabled = TRUE;
+#else
+        context->enhancedEnabled = FALSE;
+#endif
+	}
+	else
+	{
+        context->enhancedEnabled = FALSE;
+	}
+    context->restrictSubbands = subbands;
+    context->limitFrameFormat = TRUE;
+    return OI_OK;
+}
+
+
+/**
+@}
+*/
diff --git a/rtkbt/code/bt/embdrv/sbc/decoder/srce/decoder-private.c b/rtkbt/code/bt/embdrv/sbc/decoder/srce/decoder-private.c
new file mode 100755
index 0000000..faccbf0
--- /dev/null
+++ b/rtkbt/code/bt/embdrv/sbc/decoder/srce/decoder-private.c
@@ -0,0 +1,227 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 The Android Open Source Project
+ *  Copyright 2003 - 2004 Open Interface North America, Inc. All rights reserved.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/**********************************************************************************
+  $Revision: #1 $
+ ***********************************************************************************/
+
+/**
+@file
+This file drives SBC decoding.
+
+@ingroup codec_internal
+*/
+
+/**
+@addtogroup codec_internal
+@{
+*/
+
+#include "oi_codec_sbc_private.h"
+#include "oi_bitstream.h"
+#include <stdio.h>
+
+OI_CHAR * const OI_Codec_Copyright = "Copyright 2002-2007 Open Interface North America, Inc. All rights reserved";
+
+INLINE OI_STATUS internal_DecoderReset(OI_CODEC_SBC_DECODER_CONTEXT *context,
+                                       OI_UINT32 *decoderData,
+                                       OI_UINT32 decoderDataBytes,
+                                       OI_BYTE maxChannels,
+                                       OI_BYTE pcmStride,
+                                       OI_BOOL enhanced)
+{
+    OI_UINT i;
+    OI_STATUS status;
+
+    for (i = 0; i < sizeof(*context); i++) {
+        ((char *)context)[i] = 0;
+    }
+
+#ifdef SBC_ENHANCED
+    context->enhancedEnabled = enhanced ? TRUE : FALSE;
+#else
+    context->enhancedEnabled = FALSE;
+    if (enhanced){
+        return OI_STATUS_INVALID_PARAMETERS;
+    }
+#endif
+
+    status = OI_CODEC_SBC_Alloc(&context->common, decoderData, decoderDataBytes, maxChannels, pcmStride);
+
+    if (!OI_SUCCESS(status)) {
+        return status;
+    }
+
+    context->common.codecInfo = OI_Codec_Copyright;
+    context->common.maxBitneed = 0;
+    context->limitFrameFormat = FALSE;
+    OI_SBC_ExpandFrameFields(&context->common.frameInfo);
+
+    /*PLATFORM_DECODER_RESET(context);*/
+
+    return OI_OK;
+}
+
+
+
+
+/**
+ * Read the SBC header up to but not including the joint stereo mask.  The syncword has already been
+ * examined, and the enhanced mode flag set, by FindSyncword.
+ */
+INLINE void OI_SBC_ReadHeader(OI_CODEC_SBC_COMMON_CONTEXT *common, const OI_BYTE *data)
+{
+    OI_CODEC_SBC_FRAME_INFO *frame = &common->frameInfo;
+    OI_UINT8 d1;
+
+
+    OI_ASSERT(data[0] == OI_SBC_SYNCWORD || data[0] == OI_SBC_ENHANCED_SYNCWORD);
+
+    /* Avoid filling out all these strucutures if we already remember the values
+     * from last time. Just in case we get a stream corresponding to data[1] ==
+     * 0, DecoderReset is responsible for ensuring the lookup table entries have
+     * already been populated
+     */
+    d1 = data[1];
+    if (d1 != frame->cachedInfo) {
+
+        frame->freqIndex = (d1 & (BIT7 | BIT6)) >> 6;
+        frame->frequency = freq_values[frame->freqIndex];
+
+        frame->blocks = (d1 & (BIT5 | BIT4)) >> 4;
+        frame->nrof_blocks = block_values[frame->blocks];
+
+        frame->mode = (d1 & (BIT3 | BIT2)) >> 2;
+        frame->nrof_channels = channel_values[frame->mode];
+
+        frame->alloc = (d1 & BIT1) >> 1;
+
+        frame->subbands = (d1 & BIT0);
+        frame->nrof_subbands = band_values[frame->subbands];
+
+        frame->cachedInfo = d1;
+    }
+    /*
+     * For decode, the bit allocator needs to know the bitpool value
+     */
+    frame->bitpool = data[2];
+    frame->crc = data[3];
+}
+
+
+#define LOW(x)  ((x)& 0xf)
+#define HIGH(x) ((x) >> 4)
+
+/*
+ * Read scalefactor values and prepare the bitstream for OI_SBC_ReadSamples
+ */
+PRIVATE void OI_SBC_ReadScalefactors(OI_CODEC_SBC_COMMON_CONTEXT *common,
+                             const OI_BYTE *b,
+                             OI_BITSTREAM *bs)
+{
+    OI_UINT i = common->frameInfo.nrof_subbands * common->frameInfo.nrof_channels;
+    OI_INT8 *scale_factor = common->scale_factor;
+    OI_UINT f;
+
+    if (common->frameInfo.nrof_subbands == 8 || common->frameInfo.mode != SBC_JOINT_STEREO) {
+        if (common->frameInfo.mode == SBC_JOINT_STEREO) {
+            common->frameInfo.join = *b++;
+        } else {
+            common->frameInfo.join = 0;
+        }
+        i /= 2;
+        do {
+            *scale_factor++ = HIGH(f = *b++);
+            *scale_factor++ = LOW(f);
+        } while (--i);
+        /*
+         * In this case we know that the scale factors end on a byte boundary so all we need to do
+         * is initialize the bitstream.
+         */
+        OI_BITSTREAM_ReadInit(bs, b);
+    } else {
+        OI_ASSERT(common->frameInfo.nrof_subbands == 4 && common->frameInfo.mode == SBC_JOINT_STEREO);
+        common->frameInfo.join = HIGH(f = *b++);
+        i = (i - 1) / 2;
+        do {
+            *scale_factor++ = LOW(f);
+            *scale_factor++ = HIGH(f = *b++);
+        } while (--i);
+        *scale_factor++ = LOW(f);
+        /*
+         * In 4-subband joint stereo mode, the joint stereo information ends on a half-byte
+         * boundary, so it's necessary to use the bitstream abstraction to read it, since
+         * OI_SBC_ReadSamples will need to pick up in mid-byte.
+         */
+        OI_BITSTREAM_ReadInit(bs, b);
+        *scale_factor++ = OI_BITSTREAM_ReadUINT4Aligned(bs);
+    }
+}
+
+/** Read quantized subband samples from the input bitstream and expand them. */
+PRIVATE void OI_SBC_ReadSamples(OI_CODEC_SBC_DECODER_CONTEXT *context, OI_BITSTREAM *global_bs)
+{
+    OI_CODEC_SBC_COMMON_CONTEXT *common = &context->common;
+    OI_UINT nrof_blocks = common->frameInfo.nrof_blocks;
+    OI_INT32 * RESTRICT s = common->subdata;
+    OI_UINT8 *ptr = global_bs->ptr.w;
+    OI_UINT32 value = global_bs->value;
+    OI_UINT bitPtr = global_bs->bitPtr;
+
+    const OI_UINT iter_count = common->frameInfo.nrof_channels * common->frameInfo.nrof_subbands / 4;
+    do {
+        OI_UINT i;
+        for (i = 0; i < iter_count; ++i) {
+            OI_UINT32 sf_by4 = ((OI_UINT32*)common->scale_factor)[i];
+            OI_UINT32 bits_by4 = common->bits.uint32[i];
+            OI_UINT n;
+            for (n = 0; n < 4; ++n) {
+                OI_INT32 dequant;
+                OI_UINT bits;
+                OI_INT sf;
+
+                if (OI_CPU_BYTE_ORDER == OI_LITTLE_ENDIAN_BYTE_ORDER) {
+                    bits = bits_by4 & 0xFF;
+                    bits_by4 >>= 8;
+                    sf = sf_by4 & 0xFF;
+                    sf_by4 >>= 8;
+                } else {
+                    bits = (bits_by4 >> 24) & 0xFF;
+                    bits_by4 <<= 8;
+                    sf = (sf_by4 >> 24) & 0xFF;
+                    sf_by4 <<= 8;
+                }
+                if (bits) {
+                    OI_UINT32 raw;
+                    OI_BITSTREAM_READUINT(raw, bits, ptr, value, bitPtr);
+                    dequant = OI_SBC_Dequant(raw, sf, bits);
+                } else {
+                    dequant = 0;
+                }
+                *s++ = dequant;
+            }
+        }
+    } while (--nrof_blocks);
+}
+
+
+
+/**
+@}
+*/
diff --git a/rtkbt/code/bt/embdrv/sbc/decoder/srce/decoder-sbc.c b/rtkbt/code/bt/embdrv/sbc/decoder/srce/decoder-sbc.c
new file mode 100755
index 0000000..2c3a98d
--- /dev/null
+++ b/rtkbt/code/bt/embdrv/sbc/decoder/srce/decoder-sbc.c
@@ -0,0 +1,465 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 The Android Open Source Project
+ *  Copyright 2006 Open Interface North America, Inc. All rights reserved.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/**********************************************************************************
+  $Revision: #1 $
+ ***********************************************************************************/
+
+/** @file
+@ingroup codec_internal
+*/
+
+/**@addtogroup codec_internal */
+/**@{*/
+
+#include "oi_codec_sbc_private.h"
+#include "oi_bitstream.h"
+
+#define SPECIALIZE_READ_SAMPLES_JOINT
+
+/**
+ * Scans through a buffer looking for a codec syncword. If the decoder has been
+ * set for enhanced operation using OI_CODEC_SBC_DecoderReset(), it will search
+ * for both a standard and an enhanced syncword.
+ */
+PRIVATE OI_STATUS FindSyncword(OI_CODEC_SBC_DECODER_CONTEXT *context,
+                               const OI_BYTE **frameData,
+                               OI_UINT32 *frameBytes)
+{
+#ifdef SBC_ENHANCED
+    OI_BYTE search1 = OI_SBC_SYNCWORD;
+    OI_BYTE search2 = OI_SBC_ENHANCED_SYNCWORD;
+#endif // SBC_ENHANCED
+
+    if (*frameBytes == 0) {
+        return OI_CODEC_SBC_NOT_ENOUGH_HEADER_DATA;
+    }
+
+#ifdef SBC_ENHANCED
+    if (context->limitFrameFormat && context->enhancedEnabled){
+        /* If the context is restricted, only search for specified SYNCWORD */
+        search1 = search2;
+    } else if (context->enhancedEnabled == FALSE) {
+        /* If enhanced is not enabled, only search for classic SBC SYNCWORD*/
+        search2 = search1;
+    }
+    while (*frameBytes && (**frameData != search1) && (**frameData != search2)) {
+        (*frameBytes)--;
+        (*frameData)++;
+    }
+    if (*frameBytes) {
+        /* Syncword found, *frameData points to it, and *frameBytes correctly
+         * reflects the number of bytes available to read, including the
+         * syncword. */
+        context->common.frameInfo.enhanced = (**frameData == OI_SBC_ENHANCED_SYNCWORD);
+        return OI_OK;
+    } else {
+        /* No syncword was found anywhere in the provided input data.
+         * *frameData points past the end of the original input, and
+         * *frameBytes is 0. */
+        return OI_CODEC_SBC_NO_SYNCWORD;
+    }
+#else  // SBC_ENHANCED
+    while (*frameBytes && (**frameData != OI_SBC_SYNCWORD)) {
+        (*frameBytes)--;
+        (*frameData)++;
+    }
+    if (*frameBytes) {
+        /* Syncword found, *frameData points to it, and *frameBytes correctly
+         * reflects the number of bytes available to read, including the
+         * syncword. */
+        context->common.frameInfo.enhanced = FALSE;
+        return OI_OK;
+    } else {
+        /* No syncword was found anywhere in the provided input data.
+         * *frameData points past the end of the original input, and
+         * *frameBytes is 0. */
+        return OI_CODEC_SBC_NO_SYNCWORD;
+    }
+#endif // SBC_ENHANCED
+}
+
+static OI_STATUS DecodeBody(OI_CODEC_SBC_DECODER_CONTEXT *context,
+                            const OI_BYTE *bodyData,
+                            OI_INT16 *pcmData,
+                            OI_UINT32 *pcmBytes,
+                            OI_BOOL allowPartial)
+{
+    OI_BITSTREAM bs;
+    OI_UINT frameSamples = context->common.frameInfo.nrof_blocks * context->common.frameInfo.nrof_subbands;
+    OI_UINT decode_block_count;
+
+    /*
+     * Based on the header data, make sure that there is enough room to write the output samples.
+     */
+    if (*pcmBytes < (sizeof(OI_INT16) * frameSamples * context->common.pcmStride) && !allowPartial) {
+        /* If we're not allowing partial decodes, we need room for the entire
+         * codec frame */
+        TRACE(("-OI_CODEC_SBC_Decode: OI_CODEC_SBC_NOT_ENOUGH_AUDIO_DATA"));
+        return OI_CODEC_SBC_NOT_ENOUGH_AUDIO_DATA;
+    } else if (*pcmBytes < sizeof (OI_INT16) * context->common.frameInfo.nrof_subbands * context->common.pcmStride) {
+        /* Even if we're allowing partials, we can still only decode on a frame
+         * boundary */
+        return OI_CODEC_SBC_NOT_ENOUGH_AUDIO_DATA;
+    }
+
+    if (context->bufferedBlocks == 0) {
+        TRACE(("Reading scalefactors"));
+        OI_SBC_ReadScalefactors(&context->common, bodyData, &bs);
+
+        TRACE(("Computing bit allocation"));
+        OI_SBC_ComputeBitAllocation(&context->common);
+
+        TRACE(("Reading samples"));
+        if (context->common.frameInfo.mode == SBC_JOINT_STEREO) {
+            OI_SBC_ReadSamplesJoint(context, &bs);
+        } else {
+            OI_SBC_ReadSamples(context, &bs);
+        }
+
+        context->bufferedBlocks = context->common.frameInfo.nrof_blocks;
+    }
+
+    if (allowPartial) {
+        decode_block_count = *pcmBytes / sizeof(OI_INT16) / context->common.pcmStride / context->common.frameInfo.nrof_subbands;
+
+        if (decode_block_count > context->bufferedBlocks) {
+            decode_block_count = context->bufferedBlocks;
+        }
+
+    } else {
+        decode_block_count = context->common.frameInfo.nrof_blocks;
+    }
+
+    TRACE(("Synthesizing frame"));
+    {
+        OI_UINT start_block = context->common.frameInfo.nrof_blocks - context->bufferedBlocks;
+        OI_SBC_SynthFrame(context, pcmData, start_block, decode_block_count);
+    }
+
+    OI_ASSERT(context->bufferedBlocks >= decode_block_count);
+    context->bufferedBlocks -= decode_block_count;
+
+    frameSamples = decode_block_count * context->common.frameInfo.nrof_subbands;
+
+    /*
+     * When decoding mono into a stride-2 array, copy pcm data to second channel
+     */
+    if (context->common.frameInfo.nrof_channels == 1 && context->common.pcmStride == 2) {
+        OI_UINT i;
+        for (i = 0; i < frameSamples; ++i) {
+            pcmData[2*i+1] = pcmData[2*i];
+        }
+    }
+
+    /*
+     * Return number of pcm bytes generated by the decode operation.
+     */
+    *pcmBytes = frameSamples * sizeof(OI_INT16) * context->common.pcmStride;
+    if (context->bufferedBlocks > 0) {
+        return OI_CODEC_SBC_PARTIAL_DECODE;
+    } else {
+        return OI_OK;
+    }
+}
+
+PRIVATE OI_STATUS internal_DecodeRaw(OI_CODEC_SBC_DECODER_CONTEXT *context,
+                                     OI_UINT8 bitpool,
+                                     const OI_BYTE **frameData,
+                                     OI_UINT32 *frameBytes,
+                                     OI_INT16 *pcmData,
+                                     OI_UINT32 *pcmBytes)
+{
+    OI_STATUS status;
+    OI_UINT bodyLen;
+
+    TRACE(("+OI_CODEC_SBC_DecodeRaw"));
+
+    if (context->bufferedBlocks == 0) {
+        /*
+         * The bitallocator needs to know the bitpool value.
+         */
+        context->common.frameInfo.bitpool = bitpool;
+        /*
+         * Compute the frame length and check we have enough frame data to proceed
+         */
+        bodyLen = OI_CODEC_SBC_CalculateFramelen(&context->common.frameInfo) - SBC_HEADER_LEN;
+        if (*frameBytes < bodyLen) {
+            TRACE(("-OI_CODEC_SBC_Decode: OI_CODEC_SBC_NOT_ENOUGH_BODY_DATA"));
+            return OI_CODEC_SBC_NOT_ENOUGH_BODY_DATA;
+        }
+    } else {
+        bodyLen = 0;
+    }
+    /*
+     * Decode the SBC data. Pass TRUE to DecodeBody to allow partial decoding of
+     * tones.
+     */
+    status = DecodeBody(context, *frameData, pcmData, pcmBytes, TRUE);
+    if (OI_SUCCESS(status) || status == OI_CODEC_SBC_PARTIAL_DECODE) {
+        *frameData += bodyLen;
+        *frameBytes -= bodyLen;
+    }
+    TRACE(("-OI_CODEC_SBC_DecodeRaw: %d", status));
+    return status;
+}
+
+OI_STATUS OI_CODEC_SBC_DecoderReset(OI_CODEC_SBC_DECODER_CONTEXT *context,
+                                    OI_UINT32 *decoderData,
+                                    OI_UINT32 decoderDataBytes,
+                                    OI_UINT8 maxChannels,
+                                    OI_UINT8 pcmStride,
+                                    OI_BOOL enhanced)
+{
+    return internal_DecoderReset(context, decoderData, decoderDataBytes, maxChannels, pcmStride, enhanced);
+}
+
+OI_STATUS OI_CODEC_SBC_DecodeFrame(OI_CODEC_SBC_DECODER_CONTEXT *context,
+                                   const OI_BYTE **frameData,
+                                   OI_UINT32 *frameBytes,
+                                   OI_INT16 *pcmData,
+                                   OI_UINT32 *pcmBytes)
+{
+    OI_STATUS status;
+    OI_UINT framelen;
+    OI_UINT8 crc;
+
+    TRACE(("+OI_CODEC_SBC_DecodeFrame"));
+
+    TRACE(("Finding syncword"));
+    status = FindSyncword(context, frameData, frameBytes);
+    if (!OI_SUCCESS(status)) {
+        return status;
+    }
+
+    /* Make sure enough data remains to read the header. */
+    if (*frameBytes < SBC_HEADER_LEN) {
+        TRACE(("-OI_CODEC_SBC_DecodeFrame: OI_CODEC_SBC_NOT_ENOUGH_HEADER_DATA"));
+        return OI_CODEC_SBC_NOT_ENOUGH_HEADER_DATA;
+    }
+
+    TRACE(("Reading Header"));
+    OI_SBC_ReadHeader(&context->common, *frameData);
+
+    /*
+     * Some implementations load the decoder into RAM and use overlays for 4 vs 8 subbands. We need
+     * to ensure that the SBC parameters for this frame are compatible with the restrictions imposed
+     * by the loaded overlays.
+     */
+    if (context->limitFrameFormat && (context->common.frameInfo.subbands != context->restrictSubbands)) {
+        ERROR(("SBC parameters incompatible with loaded overlay"));
+        return OI_STATUS_INVALID_PARAMETERS;
+    }
+
+    if (context->common.frameInfo.nrof_channels > context->common.maxChannels) {
+        ERROR(("SBC parameters incompatible with number of channels specified during reset"));
+        return OI_STATUS_INVALID_PARAMETERS;
+    }
+
+    if (context->common.pcmStride < 1 || context->common.pcmStride > 2) {
+        ERROR(("PCM stride not set correctly during reset"));
+        return OI_STATUS_INVALID_PARAMETERS;
+    }
+
+    /*
+     * At this point a header has been read. However, it's possible that we found a false syncword,
+     * so the header data might be invalid. Make sure we have enough bytes to read in the
+     * CRC-protected header, but don't require we have the whole frame. That way, if it turns out
+     * that we're acting on bogus header data, we don't stall the decoding process by waiting for
+     * data that we don't actually need.
+     */
+    framelen = OI_CODEC_SBC_CalculateFramelen(&context->common.frameInfo);
+    if (*frameBytes < framelen) {
+        TRACE(("-OI_CODEC_SBC_DecodeFrame: OI_CODEC_SBC_NOT_ENOUGH_BODY_DATA"));
+        return OI_CODEC_SBC_NOT_ENOUGH_BODY_DATA;
+    }
+
+    TRACE(("Calculating checksum"));
+
+    crc = OI_SBC_CalculateChecksum(&context->common.frameInfo, *frameData);
+    if (crc != context->common.frameInfo.crc) {
+        TRACE(("CRC Mismatch:  calc=%02x read=%02x\n", crc, context->common.frameInfo.crc));
+        TRACE(("-OI_CODEC_SBC_DecodeFrame: OI_CODEC_SBC_CHECKSUM_MISMATCH"));
+        return OI_CODEC_SBC_CHECKSUM_MISMATCH;
+    }
+
+#ifdef OI_DEBUG
+    /*
+     * Make sure the bitpool values are sane.
+     */
+    if ((context->common.frameInfo.bitpool < SBC_MIN_BITPOOL) && !context->common.frameInfo.enhanced) {
+        ERROR(("Bitpool too small: %d (must be >= 2)", context->common.frameInfo.bitpool));
+        return OI_STATUS_INVALID_PARAMETERS;
+    }
+    if (context->common.frameInfo.bitpool > OI_SBC_MaxBitpool(&context->common.frameInfo)) {
+        ERROR(("Bitpool too large: %d (must be <= %ld)", context->common.frameInfo.bitpool, OI_SBC_MaxBitpool(&context->common.frameInfo)));
+        return OI_STATUS_INVALID_PARAMETERS;
+    }
+#endif
+
+    /*
+     * Now decode the SBC data. Partial decode is not yet implemented for an SBC
+     * stream, so pass FALSE to decode body to have it enforce the old rule that
+     * you have to decode a whole packet at a time.
+     */
+    status = DecodeBody(context, *frameData + SBC_HEADER_LEN, pcmData, pcmBytes, FALSE);
+    if (OI_SUCCESS(status)) {
+        *frameData += framelen;
+        *frameBytes -= framelen;
+    }
+    TRACE(("-OI_CODEC_SBC_DecodeFrame: %d", status));
+
+    return status;
+}
+
+OI_STATUS OI_CODEC_SBC_SkipFrame(OI_CODEC_SBC_DECODER_CONTEXT *context,
+                                 const OI_BYTE **frameData,
+                                 OI_UINT32 *frameBytes)
+{
+    OI_STATUS status;
+    OI_UINT framelen;
+    OI_UINT headerlen;
+    OI_UINT8 crc;
+
+    status = FindSyncword(context, frameData, frameBytes);
+    if (!OI_SUCCESS(status)) {
+        return status;
+    }
+    if (*frameBytes < SBC_HEADER_LEN) {
+        return OI_CODEC_SBC_NOT_ENOUGH_HEADER_DATA;
+    }
+    OI_SBC_ReadHeader(&context->common, *frameData);
+    framelen = OI_SBC_CalculateFrameAndHeaderlen(&context->common.frameInfo, &headerlen);
+    if (*frameBytes < headerlen) {
+        return OI_CODEC_SBC_NOT_ENOUGH_HEADER_DATA;
+    }
+    crc = OI_SBC_CalculateChecksum(&context->common.frameInfo, *frameData);
+    if (crc != context->common.frameInfo.crc) {
+        return OI_CODEC_SBC_CHECKSUM_MISMATCH;
+    }
+    if (*frameBytes < framelen) {
+        return OI_CODEC_SBC_NOT_ENOUGH_BODY_DATA;
+    }
+    context->bufferedBlocks = 0;
+    *frameData += framelen;
+    *frameBytes -= framelen;
+    return OI_OK;
+}
+
+OI_UINT8 OI_CODEC_SBC_FrameCount(OI_BYTE  *frameData,
+                                 OI_UINT32 frameBytes)
+{
+    OI_UINT8 mode;
+    OI_UINT8 blocks;
+    OI_UINT8 subbands;
+    OI_UINT8 frameCount = 0;
+    OI_UINT  frameLen;
+
+    while (frameBytes){
+        while (frameBytes && ((frameData[0] & 0xFE) != 0x9C)){
+            frameData++;
+            frameBytes--;
+        }
+
+        if (frameBytes < SBC_HEADER_LEN) {
+            return frameCount;
+        }
+
+        /* Extract and translate required fields from Header */
+        subbands = mode = blocks = frameData[1];;
+        mode = (mode & (BIT3 | BIT2)) >> 2;
+        blocks = block_values[(blocks & (BIT5 | BIT4)) >> 4];
+        subbands = band_values[(subbands & BIT0)];
+
+        /* Inline logic to avoid corrupting context */
+        frameLen = blocks * frameData[2];
+        switch (mode){
+            case SBC_JOINT_STEREO:
+                frameLen += subbands + (8 * subbands);
+                break;
+
+            case SBC_DUAL_CHANNEL:
+                frameLen *= 2;
+                /* fall through */
+
+            default:
+                if (mode == SBC_MONO){
+                    frameLen += 4*subbands;
+                } else {
+                    frameLen += 8*subbands;
+                }
+        }
+
+        frameCount++;
+        frameLen = SBC_HEADER_LEN + (frameLen + 7) / 8;
+        if (frameBytes > frameLen){
+            frameBytes -= frameLen;
+            frameData += frameLen;
+        } else {
+            frameBytes = 0;
+        }
+    }
+    return frameCount;
+}
+
+/** Read quantized subband samples from the input bitstream and expand them. */
+
+#ifdef SPECIALIZE_READ_SAMPLES_JOINT
+
+PRIVATE void OI_SBC_ReadSamplesJoint4(OI_CODEC_SBC_DECODER_CONTEXT *context, OI_BITSTREAM *global_bs)
+{
+#define NROF_SUBBANDS 4
+#include "readsamplesjoint.inc"
+#undef NROF_SUBBANDS
+}
+
+PRIVATE void OI_SBC_ReadSamplesJoint8(OI_CODEC_SBC_DECODER_CONTEXT *context, OI_BITSTREAM *global_bs)
+{
+#define NROF_SUBBANDS 8
+#include "readsamplesjoint.inc"
+#undef NROF_SUBBANDS
+}
+
+typedef void (*READ_SAMPLES)(OI_CODEC_SBC_DECODER_CONTEXT *context, OI_BITSTREAM *global_bs);
+
+static const READ_SAMPLES SpecializedReadSamples[] = {
+    OI_SBC_ReadSamplesJoint4,
+    OI_SBC_ReadSamplesJoint8
+};
+
+#endif /* SPECIALIZE_READ_SAMPLES_JOINT */
+
+
+PRIVATE void OI_SBC_ReadSamplesJoint(OI_CODEC_SBC_DECODER_CONTEXT *context, OI_BITSTREAM *global_bs)
+{
+    OI_CODEC_SBC_COMMON_CONTEXT *common = &context->common;
+    OI_UINT nrof_subbands = common->frameInfo.nrof_subbands;
+#ifdef SPECIALIZE_READ_SAMPLES_JOINT
+    OI_ASSERT((nrof_subbands >> 3u) <= 1u);
+    SpecializedReadSamples[nrof_subbands >> 3](context, global_bs);
+#else
+
+#define NROF_SUBBANDS nrof_subbands
+#include "readsamplesjoint.inc"
+#undef NROF_SUBBANDS
+#endif /* SPECIALIZE_READ_SAMPLES_JOINT */
+}
+
+/**@}*/
+
diff --git a/rtkbt/code/bt/embdrv/sbc/decoder/srce/dequant.c b/rtkbt/code/bt/embdrv/sbc/decoder/srce/dequant.c
new file mode 100755
index 0000000..e06069c
--- /dev/null
+++ b/rtkbt/code/bt/embdrv/sbc/decoder/srce/dequant.c
@@ -0,0 +1,210 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 The Android Open Source Project
+ *  Copyright 2003 - 2004 Open Interface North America, Inc. All rights reserved.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/**********************************************************************************
+  $Revision: #1 $
+***********************************************************************************/
+
+/**
+ @file
+
+ Dequantizer for SBC decoder; reconstructs quantized representation of subband samples.
+
+ @ingroup codec_internal
+ */
+
+/**
+@addtogroup codec_internal
+@{
+*/
+
+/**
+ This function is a fixed-point approximation of a modification of the following
+ dequantization operation defined in the spec, as inferred from section 12.6.4:
+
+ @code
+ dequant = 2^(scale_factor+1) * ((raw * 2.0 + 1.0) / ((2^bits) - 1) - 1)
+
+ 2 <= bits <= 16
+ 0 <= raw < (2^bits)-1   (the -1 is because quantized values with all 1's are forbidden)
+
+ -65535 < dequant < 65535
+ @endcode
+
+ The code below computes the dequantized value divided by a scaling constant
+ equal to about 1.38. This constant is chosen to ensure that the entry in the
+ dequant_long_scaled table for 16 bits is as accurate as possible, since it has
+ the least relative precision available to it due to its small magnitude.
+
+ This routine outputs in Q16.15 format.
+
+ The helper array dequant_long is defined as follows:
+
+ @code
+ dequant_long_long[bits] = round(2^31 * 1/((2^bits - 1) / 1.38...)  for 2 <= bits <= 16
+ @endcode
+
+
+ Additionally, the table entries have the following property:
+
+ @code
+ dequant_long_scaled[bits] <= 2^31 / ((2^bits - 1))  for 2 <= bits <= 16
+ @endcode
+
+ Therefore
+
+ @code
+ d = 2 * raw + 1              1 <= d <= 2^bits - 2
+
+ d' = d * dequant_long[bits]
+
+                  d * dequant_long_scaled[bits] <= (2^bits - 2) * (2^31 / (2^bits - 1))
+                  d * dequant_long_scaled[bits] <= 2^31 * (2^bits - 2)/(2^bits - 1) < 2^31
+ @endcode
+
+ Therefore, d' doesn't overflow a signed 32-bit value.
+
+ @code
+
+ d' =~ 2^31 * (raw * 2.0 + 1.0) / (2^bits - 1) / 1.38...
+
+ result = d' - 2^31/1.38... =~ 2^31 * ((raw * 2.0 + 1.0) / (2^bits - 1) - 1) / 1.38...
+
+ result is therefore a scaled approximation to dequant. It remains only to
+ turn 2^31 into 2^(scale_factor+1). Since we're aiming for Q16.15 format,
+ this is achieved by shifting right by (15-scale_factor):
+
+  (2^31 * x) >> (15-scale_factor) =~ 2^(31-15+scale_factor) * x = 2^15 * 2^(1+scale_factor) * x
+ @endcode
+
+ */
+
+#include <oi_codec_sbc_private.h>
+
+#ifndef SBC_DEQUANT_LONG_SCALED_OFFSET
+#define SBC_DEQUANT_LONG_SCALED_OFFSET 1555931970
+#endif
+
+#ifndef SBC_DEQUANT_LONG_UNSCALED_OFFSET
+#define SBC_DEQUANT_LONG_UNSCALED_OFFSET 2147483648
+#endif
+
+#ifndef SBC_DEQUANT_SCALING_FACTOR
+#define SBC_DEQUANT_SCALING_FACTOR 1.38019122262781f
+#endif
+
+const OI_UINT32 dequant_long_scaled[17];
+const OI_UINT32 dequant_long_unscaled[17];
+
+/** Scales x by y bits to the right, adding a rounding factor.
+ */
+#ifndef SCALE
+#define SCALE(x, y) (((x) + (1 <<((y)-1))) >> (y))
+#endif
+
+#ifdef DEBUG_DEQUANTIZATION
+
+#include <math.h>
+
+INLINE float dequant_float(OI_UINT32 raw, OI_UINT scale_factor, OI_UINT bits)
+{
+    float result = (1 << (scale_factor+1)) * ((raw * 2.0f + 1.0f) / ((1 << bits) - 1.0f) - 1.0f);
+
+    result /= SBC_DEQUANT_SCALING_FACTOR;
+
+    /* Unless the encoder screwed up, all correct dequantized values should
+     * satisfy this inequality. Non-compliant encoders which generate quantized
+     * values with all 1-bits set can, theoretically, trigger this assert. This
+     * is unlikely, however, and only an issue in debug mode.
+     */
+    OI_ASSERT(fabs(result) < 32768 * 1.6);
+
+    return result;
+}
+
+#endif
+
+
+INLINE OI_INT32 OI_SBC_Dequant(OI_UINT32 raw, OI_UINT scale_factor, OI_UINT bits)
+{
+    OI_UINT32 d;
+    OI_INT32 result;
+
+    OI_ASSERT(scale_factor <= 15);
+    OI_ASSERT(bits <= 16);
+
+    if (bits <= 1) {
+        return 0;
+    }
+
+    d = (raw * 2) + 1;
+    d *= dequant_long_scaled[bits];
+    result = d - SBC_DEQUANT_LONG_SCALED_OFFSET;
+
+#ifdef DEBUG_DEQUANTIZATION
+    {
+        OI_INT32 integerized_float_result;
+        float float_result;
+
+        float_result = dequant_float(raw, scale_factor, bits);
+        integerized_float_result = (OI_INT32)floor(0.5f+float_result * (1 << 15));
+
+        /* This detects overflow */
+        OI_ASSERT(((result >= 0) && (integerized_float_result >= 0)) ||
+                  ((result <= 0) && (integerized_float_result <= 0)));
+    }
+#endif
+    return result >> (15 - scale_factor);
+}
+
+/* This version of Dequant does not incorporate the scaling factor of 1.38. It
+ * is intended for use with implementations of the filterbank which are
+ * hard-coded into a DSP. Output is Q16.4 format, so that after joint stereo
+ * processing (which leaves the most significant bit equal to the sign bit if
+ * the encoder is conformant) the result will fit a 24 bit fixed point signed
+ * value.*/
+
+INLINE OI_INT32 OI_SBC_Dequant_Unscaled(OI_UINT32 raw, OI_UINT scale_factor, OI_UINT bits)
+{
+    OI_UINT32 d;
+    OI_INT32 result;
+
+    OI_ASSERT(scale_factor <= 15);
+    OI_ASSERT(bits <= 16);
+
+
+    if (bits <= 1) {
+        return 0;
+    }
+    if (bits == 16) {
+        result = (raw << 16) + raw - 0x7fff7fff;
+        return SCALE(result, 24 - scale_factor);
+    }
+
+
+    d = (raw * 2) + 1;
+    d *= dequant_long_unscaled[bits];
+    result = d - 0x80000000;
+
+    return SCALE(result, 24 - scale_factor);
+}
+
+/**
+@}
+*/
diff --git a/rtkbt/code/bt/embdrv/sbc/decoder/srce/framing-sbc.c b/rtkbt/code/bt/embdrv/sbc/decoder/srce/framing-sbc.c
new file mode 100755
index 0000000..88cb2e2
--- /dev/null
+++ b/rtkbt/code/bt/embdrv/sbc/decoder/srce/framing-sbc.c
@@ -0,0 +1,54 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 The Android Open Source Project
+ *  Copyright 2003 - 2004 Open Interface North America, Inc. All rights reserved.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/**********************************************************************************
+  $Revision: #1 $
+***********************************************************************************/
+
+/** @file
+@ingroup codec_internal
+*/
+
+/**@addgroup codec_internal*/
+/**@{*/
+
+#include "oi_codec_sbc_private.h"
+
+const OI_CHAR* const OI_CODEC_SBC_FreqText[] =     { "SBC_FREQ_16000", "SBC_FREQ_32000", "SBC_FREQ_44100", "SBC_FREQ_48000" };
+const OI_CHAR* const OI_CODEC_SBC_ModeText[] =     { "SBC_MONO", "SBC_DUAL_CHANNEL", "SBC_STEREO", "SBC_JOINT_STEREO" };
+const OI_CHAR* const OI_CODEC_SBC_SubbandsText[] = { "SBC_SUBBANDS_4", "SBC_SUBBANDS_8" };
+const OI_CHAR* const OI_CODEC_SBC_BlocksText[] =   { "SBC_BLOCKS_4", "SBC_BLOCKS_8", "SBC_BLOCKS_12", "SBC_BLOCKS_16" };
+const OI_CHAR* const OI_CODEC_SBC_AllocText[] =    { "SBC_LOUDNESS", "SBC_SNR" };
+
+#ifdef OI_DEBUG
+void OI_CODEC_SBC_DumpConfig(OI_CODEC_SBC_FRAME_INFO *frameInfo)
+{
+    printf("SBC configuration\n");
+    printf("  enhanced:  %s\n", frameInfo->enhanced ? "TRUE" : "FALSE");
+    printf("  frequency: %d\n", frameInfo->frequency);
+    printf("  subbands:  %d\n", frameInfo->nrof_subbands);
+    printf("  blocks:    %d\n", frameInfo->nrof_blocks);
+    printf("  channels:  %d\n", frameInfo->nrof_channels);
+    printf("  mode:      %s\n", OI_CODEC_SBC_ModeText[frameInfo->mode]);
+    printf("  alloc:     %s\n", OI_CODEC_SBC_AllocText[frameInfo->alloc]);
+    printf("  bitpool:   %d\n", frameInfo->bitpool);
+}
+#endif /* OI_DEBUG */
+
+/**@}*/
diff --git a/rtkbt/code/bt/embdrv/sbc/decoder/srce/framing.c b/rtkbt/code/bt/embdrv/sbc/decoder/srce/framing.c
new file mode 100755
index 0000000..c94ec90
--- /dev/null
+++ b/rtkbt/code/bt/embdrv/sbc/decoder/srce/framing.c
@@ -0,0 +1,249 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 The Android Open Source Project
+ *  Copyright 2003 - 2004 Open Interface North America, Inc. All rights reserved.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/**********************************************************************************
+  $Revision: #1 $
+***********************************************************************************/
+
+/**
+@file
+Checksum and header-related functions.
+
+@ingroup codec_internal
+*/
+
+/**
+@addtogroup codec_internal
+@{
+*/
+
+#include "oi_codec_sbc_private.h"
+#include "oi_assert.h"
+
+
+/* asdasd */
+
+#define USE_NIBBLEWISE_CRC
+
+/* #define PRINT_SAMPLES */
+/* #define PRINT_SCALEFACTORS */
+/* #define DEBUG_CRC */
+
+/*
+ * CRC-8 table for X^8 + X^4 + X^3 + X^2 + 1; byte-wise lookup
+ */
+#ifdef USE_WIDE_CRC
+/* Save space if a char is 16 bits, such as on the C54x */
+const OI_BYTE crc8_wide[128] = {
+    0x001d, 0x3a27, 0x7469, 0x4e53, 0xe8f5, 0xd2cf, 0x9c81, 0xa6bb, 0xcdd0, 0xf7ea, 0xb9a4, 0x839e, 0x2538, 0x1f02, 0x514c, 0x6b76, 0x879a, 0xbda0, 0xf3ee, 0xc9d4, 0x6f72, 0x5548, 0x1b06, 0x213c, 0x4a57, 0x706d, 0x3e23, 0x0419, 0xa2bf, 0x9885, 0xd6cb, 0xecf1, 0x130e, 0x2934, 0x677a, 0x5d40, 0xfbe6, 0xc1dc, 0x8f92, 0xb5a8, 0xdec3, 0xe4f9, 0xaab7, 0x908d, 0x362b, 0x0c11, 0x425f, 0x7865, 0x9489, 0xaeb3, 0xe0fd, 0xdac7, 0x7c61, 0x465b, 0x0815, 0x322f, 0x5944, 0x637e, 0x2d30, 0x170a, 0xb1ac, 0x8b96, 0xc5d8, 0xffe2, 0x263b, 0x1c01, 0x524f, 0x6875, 0xced3, 0xf4e9, 0xbaa7, 0x809d, 0xebf6, 0xd1cc, 0x9f82, 0xa5b8, 0x031e, 0x3924, 0x776a, 0x4d50, 0xa1bc, 0x9b86, 0xd5c8, 0xeff2, 0x4954, 0x736e, 0x3d20, 0x071a, 0x6c71, 0x564b, 0x1805, 0x223f, 0x8499, 0xbea3, 0xf0ed, 0xcad7, 0x3528, 0x0f12, 0x415c, 0x7b66, 0xddc0, 0xe7fa, 0xa9b4, 0x938e, 0xf8e5, 0xc2df, 0x8c91, 0xb6ab, 0x100d, 0x2a37, 0x6479, 0x5e43, 0xb2af, 0x8895, 0xc6db, 0xfce1, 0x5a47, 0x607d, 0x2e33, 0x1409, 0x7f62, 0x4558, 0x0b16, 0x312c, 0x978a, 0xadb0, 0xe3fe, 0xd9c4,
+};
+#elif defined(USE_NIBBLEWISE_CRC)
+const OI_BYTE crc8_narrow[16] = {
+    0x00, 0x1d, 0x3a, 0x27, 0x74, 0x69, 0x4e, 0x53, 0xe8, 0xf5, 0xd2, 0xcf, 0x9c, 0x81, 0xa6, 0xbb
+};
+#else
+const OI_BYTE crc8_narrow[256] = {
+    0x00, 0x1d, 0x3a, 0x27, 0x74, 0x69, 0x4e, 0x53, 0xe8, 0xf5, 0xd2, 0xcf, 0x9c, 0x81, 0xa6, 0xbb, 0xcd, 0xd0, 0xf7, 0xea, 0xb9, 0xa4, 0x83, 0x9e, 0x25, 0x38, 0x1f, 0x02, 0x51, 0x4c, 0x6b, 0x76, 0x87, 0x9a, 0xbd, 0xa0, 0xf3, 0xee, 0xc9, 0xd4, 0x6f, 0x72, 0x55, 0x48, 0x1b, 0x06, 0x21, 0x3c, 0x4a, 0x57, 0x70, 0x6d, 0x3e, 0x23, 0x04, 0x19, 0xa2, 0xbf, 0x98, 0x85, 0xd6, 0xcb, 0xec, 0xf1, 0x13, 0x0e, 0x29, 0x34, 0x67, 0x7a, 0x5d, 0x40, 0xfb, 0xe6, 0xc1, 0xdc, 0x8f, 0x92, 0xb5, 0xa8, 0xde, 0xc3, 0xe4, 0xf9, 0xaa, 0xb7, 0x90, 0x8d, 0x36, 0x2b, 0x0c, 0x11, 0x42, 0x5f, 0x78, 0x65, 0x94, 0x89, 0xae, 0xb3, 0xe0, 0xfd, 0xda, 0xc7, 0x7c, 0x61, 0x46, 0x5b, 0x08, 0x15, 0x32, 0x2f, 0x59, 0x44, 0x63, 0x7e, 0x2d, 0x30, 0x17, 0x0a, 0xb1, 0xac, 0x8b, 0x96, 0xc5, 0xd8, 0xff, 0xe2, 0x26, 0x3b, 0x1c, 0x01, 0x52, 0x4f, 0x68, 0x75, 0xce, 0xd3, 0xf4, 0xe9, 0xba, 0xa7, 0x80, 0x9d, 0xeb, 0xf6, 0xd1, 0xcc, 0x9f, 0x82, 0xa5, 0xb8, 0x03, 0x1e, 0x39, 0x24, 0x77, 0x6a, 0x4d, 0x50, 0xa1, 0xbc, 0x9b, 0x86, 0xd5, 0xc8, 0xef, 0xf2, 0x49, 0x54, 0x73, 0x6e, 0x3d, 0x20, 0x07, 0x1a, 0x6c, 0x71, 0x56, 0x4b, 0x18, 0x05, 0x22, 0x3f, 0x84, 0x99, 0xbe, 0xa3, 0xf0, 0xed, 0xca, 0xd7, 0x35, 0x28, 0x0f, 0x12, 0x41, 0x5c, 0x7b, 0x66, 0xdd, 0xc0, 0xe7, 0xfa, 0xa9, 0xb4, 0x93, 0x8e, 0xf8, 0xe5, 0xc2, 0xdf, 0x8c, 0x91, 0xb6, 0xab, 0x10, 0x0d, 0x2a, 0x37, 0x64, 0x79, 0x5e, 0x43, 0xb2, 0xaf, 0x88, 0x95, 0xc6, 0xdb, 0xfc, 0xe1, 0x5a, 0x47, 0x60, 0x7d, 0x2e, 0x33, 0x14, 0x09, 0x7f, 0x62, 0x45, 0x58, 0x0b, 0x16, 0x31, 0x2c, 0x97, 0x8a, 0xad, 0xb0, 0xe3, 0xfe, 0xd9, 0xc4
+};
+#endif
+const OI_UINT32 dequant_long_scaled[17] = {
+    0,
+    0,
+    0x1ee9e116,  /* bits=2  0.24151243  1/3      * (1/1.38019122262781) (0x00000008)*/
+    0x0d3fa99c,  /* bits=3  0.10350533  1/7      * (1/1.38019122262781) (0x00000013)*/
+    0x062ec69e,  /* bits=4  0.04830249  1/15     * (1/1.38019122262781) (0x00000029)*/
+    0x02fddbfa,  /* bits=5  0.02337217  1/31     * (1/1.38019122262781) (0x00000055)*/
+    0x0178d9f5,  /* bits=6  0.01150059  1/63     * (1/1.38019122262781) (0x000000ad)*/
+    0x00baf129,  /* bits=7  0.00570502  1/127    * (1/1.38019122262781) (0x0000015e)*/
+    0x005d1abe,  /* bits=8  0.00284132  1/255    * (1/1.38019122262781) (0x000002bf)*/
+    0x002e760d,  /* bits=9  0.00141788  1/511    * (1/1.38019122262781) (0x00000582)*/
+    0x00173536,  /* bits=10 0.00070825  1/1023   * (1/1.38019122262781) (0x00000b07)*/
+    0x000b9928,  /* bits=11 0.00035395  1/2047   * (1/1.38019122262781) (0x00001612)*/
+    0x0005cc37,  /* bits=12 0.00017693  1/4095   * (1/1.38019122262781) (0x00002c27)*/
+    0x0002e604,  /* bits=13 0.00008846  1/8191   * (1/1.38019122262781) (0x00005852)*/
+    0x000172fc,  /* bits=14 0.00004422  1/16383  * (1/1.38019122262781) (0x0000b0a7)*/
+    0x0000b97d,  /* bits=15 0.00002211  1/32767  * (1/1.38019122262781) (0x00016150)*/
+    0x00005cbe,  /* bits=16 0.00001106  1/65535  * (1/1.38019122262781) (0x0002c2a5)*/
+};
+
+
+const OI_UINT32 dequant_long_unscaled[17] = {
+    0,
+    0,
+    0x2aaaaaab,  /* bits=2  0.33333333  1/3      (0x00000005)*/
+    0x12492492,  /* bits=3  0.14285714  1/7      (0x0000000e)*/
+    0x08888889,  /* bits=4  0.06666667  1/15     (0x0000001d)*/
+    0x04210842,  /* bits=5  0.03225806  1/31     (0x0000003e)*/
+    0x02082082,  /* bits=6  0.01587302  1/63     (0x0000007e)*/
+    0x01020408,  /* bits=7  0.00787402  1/127    (0x000000fe)*/
+    0x00808081,  /* bits=8  0.00392157  1/255    (0x000001fd)*/
+    0x00402010,  /* bits=9  0.00195695  1/511    (0x000003fe)*/
+    0x00200802,  /* bits=10 0.00097752  1/1023   (0x000007fe)*/
+    0x00100200,  /* bits=11 0.00048852  1/2047   (0x00000ffe)*/
+    0x00080080,  /* bits=12 0.00024420  1/4095   (0x00001ffe)*/
+    0x00040020,  /* bits=13 0.00012209  1/8191   (0x00003ffe)*/
+    0x00020008,  /* bits=14 0.00006104  1/16383  (0x00007ffe)*/
+    0x00010002,  /* bits=15 0.00003052  1/32767  (0x0000fffe)*/
+    0x00008001,  /* bits=16 0.00001526  1/65535  (0x0001fffc)*/
+};
+
+#if defined(OI_DEBUG) || defined(PRINT_SAMPLES) || defined(PRINT_SCALEFACTORS)
+#include <stdio.h>
+#endif
+
+#ifdef USE_WIDE_CRC
+INLINE OI_CHAR crc_iterate(OI_UINT8 oldcrc, OI_UINT8 next)
+{
+    OI_UINT crc;
+    OI_UINT idx;
+    idx = oldcrc^next;
+    crc = crc8_wide[idx >> 1];
+    if (idx%2) {
+        crc &= 0xff;
+    } else {
+        crc >>= 8;
+    }
+
+    return crc;
+}
+
+INLINE OI_CHAR crc_iterate_top4(OI_UINT8 oldcrc, OI_UINT8 next)
+{
+    OI_UINT crc;
+    OI_UINT idx;
+    idx = (oldcrc ^ next) >> 4;
+    crc = crc8_wide[idx>>1];
+    if (idx%2) {
+        crc &= 0xff;
+    } else {
+        crc >>= 8;
+    }
+
+    return (oldcrc << 4) ^ crc;
+}
+
+#else // USE_WIDE_CRC
+
+INLINE OI_UINT8 crc_iterate_top4(OI_UINT8 oldcrc, OI_UINT8 next)
+{
+    return (oldcrc << 4) ^ crc8_narrow[(oldcrc^next) >> 4];
+}
+
+#ifdef USE_NIBBLEWISE_CRC
+INLINE OI_UINT8 crc_iterate(OI_UINT8 crc, OI_UINT8 next)
+{
+    crc = (crc << 4) ^ crc8_narrow[(crc^next) >> 4];
+    crc = (crc << 4) ^ crc8_narrow[((crc>>4)^next)&0xf];
+
+    return crc;
+}
+
+#else   // USE_NIBBLEWISE_CRC
+INLINE OI_UINT8 crc_iterate(OI_UINT8 crc, OI_UINT8 next)
+{
+  return crc8_narrow[crc^next];
+}
+
+#endif  // USE_NIBBLEWISE_CRC
+
+#endif // USE_WIDE_CRC
+
+
+PRIVATE OI_UINT8 OI_SBC_CalculateChecksum(OI_CODEC_SBC_FRAME_INFO *frame, OI_BYTE const *data)
+{
+    OI_UINT i;
+    OI_UINT8 crc = 0x0f;
+    /* Count is the number of whole bytes subject to CRC. Actually, it's one
+     * more than this number, because data[3] is the CRC field itself, which is
+     * explicitly skipped. Since crc_iterate (should be) inlined, it's cheaper
+     * spacewise to include the check in the loop. This shouldn't be much of a
+     * bottleneck routine in the first place. */
+    OI_UINT count = (frame->nrof_subbands * frame->nrof_channels / 2u) + 4;
+
+    if (frame->mode == SBC_JOINT_STEREO && frame->nrof_subbands == 8) {
+        count++;
+    }
+
+    for (i = 1; i < count; i++) {
+        if (i != 3) {
+            crc = crc_iterate(crc,data[i]);
+        }
+    }
+
+    if (frame->mode == SBC_JOINT_STEREO && frame->nrof_subbands == 4) {
+        crc = crc_iterate_top4(crc, data[i]);
+    }
+
+    return crc;
+}
+
+void OI_SBC_ExpandFrameFields(OI_CODEC_SBC_FRAME_INFO *frame)
+{
+    frame->nrof_blocks = block_values[frame->blocks];
+    frame->nrof_subbands = band_values[frame->subbands];
+
+    frame->frequency = freq_values[frame->freqIndex];
+    frame->nrof_channels = channel_values[frame->mode];
+}
+
+/**
+ * Unrolled macro to copy 4 32-bit aligned 32-bit values backward in memory
+ */
+#define COPY4WORDS_BACK(_dest, _src)            \
+    do {                                        \
+            OI_INT32 _a, _b, _c, _d;            \
+            _a = *--_src;                       \
+            _b = *--_src;                       \
+            _c = *--_src;                       \
+            _d = *--_src;                       \
+            *--_dest = _a;                      \
+            *--_dest = _b;                      \
+            *--_dest = _c;                      \
+            *--_dest = _d;                      \
+    } while (0)
+
+
+#if defined(USE_PLATFORM_MEMMOVE) || defined(USE_PLATFORM_MEMCPY)
+#include <string.h>
+#endif
+PRIVATE void shift_buffer(SBC_BUFFER_T *dest, SBC_BUFFER_T *src, OI_UINT wordCount)
+{
+#ifdef USE_PLATFORM_MEMMOVE
+    memmove(dest, src, wordCount * sizeof(SBC_BUFFER_T));
+#elif defined(USE_PLATFORM_MEMCPY)
+    OI_ASSERT(((OI_CHAR *)(dest) - (OI_CHAR *)(src)) >= wordCount*sizeof(*dest));
+    memcpy(dest, src, wordCount * sizeof(SBC_BUFFER_T));
+#else
+    OI_UINT n;
+    OI_INT32 *d;
+    OI_INT32 *s;
+    n = wordCount / 4 / (sizeof(OI_INT32)/sizeof(*dest));
+    OI_ASSERT((n * 4 * (sizeof(OI_INT32)/sizeof(*dest))) == wordCount);
+
+    d = (void*)(dest + wordCount);
+    s = (void*)(src + wordCount);
+
+    do {
+        COPY4WORDS_BACK(d, s);
+    } while (--n);
+#endif
+}
+/**
+@}
+*/
diff --git a/rtkbt/code/bt/embdrv/sbc/decoder/srce/oi_codec_version.c b/rtkbt/code/bt/embdrv/sbc/decoder/srce/oi_codec_version.c
new file mode 100755
index 0000000..25dc162
--- /dev/null
+++ b/rtkbt/code/bt/embdrv/sbc/decoder/srce/oi_codec_version.c
@@ -0,0 +1,57 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 The Android Open Source Project
+ *  Copyright 2002 - 2004 Open Interface North America, Inc. All rights reserved.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/**
+@file
+This file contains a single function, which returns a string indicating the
+version number of the eSBC codec
+
+@ingroup codec_internal
+*/
+
+/**
+@addtogroup codec_internal
+@{
+*/
+
+/**********************************************************************************
+  $Revision: #1 $
+***********************************************************************************/
+
+#include "oi_stddefs.h"
+#include "oi_codec_sbc_private.h"
+
+/** Version string for the BLUEmagic 3.0 protocol stack and profiles */
+PRIVATE OI_CHAR * const codecVersion = "v1.5"
+#ifdef OI_SBC_EVAL
+" (Evaluation version)"
+#endif
+;
+
+/** This function returns the version string for the BLUEmagic 3.0 protocol stack
+    and profiles */
+OI_CHAR *OI_CODEC_Version(void) {
+    return codecVersion;
+}
+
+/**********************************************************************************/
+
+/**
+@}
+*/
diff --git a/rtkbt/code/bt/embdrv/sbc/decoder/srce/readsamplesjoint.inc b/rtkbt/code/bt/embdrv/sbc/decoder/srce/readsamplesjoint.inc
new file mode 100755
index 0000000..875a394
--- /dev/null
+++ b/rtkbt/code/bt/embdrv/sbc/decoder/srce/readsamplesjoint.inc
@@ -0,0 +1,111 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 The Android Open Source Project
+ *  Copyright 2003 - 2004 Open Interface North America, Inc. All rights reserved.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/*******************************************************************************
+ * @file readsamplesjoint.inc
+ *
+ * This is the body of the generic version of OI_SBC_ReadSamplesJoint().
+ * It is designed to be \#included into a function as follows:
+    \code
+    void OI_SBC_ReadSamplesJoint4(OI_CODEC_SBC_COMMON_CONTEXT *common, OI_BITSTREAM *global_bs)
+    {
+        #define NROF_SUBBANDS 4
+        #include "readsamplesjoint.inc"
+        #undef NROF_SUBBANDS
+    }
+
+    void OI_SBC_ReadSamplesJoint8(OI_CODEC_SBC_COMMON_CONTEXT *common, OI_BITSTREAM *global_bs)
+    {
+        #define NROF_SUBBANDS 8
+        #include "readsamplesjoint.inc"
+        #undef NROF_SUBBANDS
+    }
+    \endcode
+ * Or to make a generic version:
+    \code
+    void OI_SBC_ReadSamplesJoint(OI_CODEC_SBC_COMMON_CONTEXT *common, OI_BITSTREAM *global_bs)
+    {
+        OI_UINT nrof_subbands = common->frameInfo.nrof_subbands;
+
+        #define NROF_SUBBANDS nrof_subbands
+        #include "readsamplesjoint.inc"
+        #undef NROF_SUBBANDS
+    }
+    \endcode
+ * @ingroup codec_internal
+ *******************************************************************************/
+
+/**********************************************************************************
+  $Revision: #1 $
+***********************************************************************************/
+
+{
+    OI_CODEC_SBC_COMMON_CONTEXT *common = &context->common;
+    OI_UINT bl = common->frameInfo.nrof_blocks;
+    OI_INT32 * RESTRICT s = common->subdata;
+    OI_UINT8 *ptr = global_bs->ptr.w;
+    OI_UINT32 value = global_bs->value;
+    OI_UINT bitPtr = global_bs->bitPtr;
+    OI_UINT8 jmask = common->frameInfo.join << (8 - NROF_SUBBANDS);
+
+    do {
+        OI_INT8 *sf_array = &common->scale_factor[0];
+        OI_UINT8 *bits_array = &common->bits.uint8[0];
+        OI_UINT8 joint = jmask;
+        OI_UINT sb;
+        /*
+         * Left channel
+         */
+        sb = NROF_SUBBANDS;
+        do {
+            OI_UINT32 raw;
+            OI_INT32 dequant;
+            OI_UINT8 bits = *bits_array++;
+            OI_INT sf = *sf_array++;
+
+            OI_BITSTREAM_READUINT(raw, bits, ptr, value, bitPtr);
+            dequant = OI_SBC_Dequant(raw, sf, bits);
+            *s++ = dequant;
+        } while (--sb);
+        /*
+         * Right channel
+         */
+        sb = NROF_SUBBANDS;
+        do {
+            OI_UINT32 raw;
+            OI_INT32 dequant;
+            OI_UINT8 bits = *bits_array++;
+            OI_INT sf = *sf_array++;
+
+            OI_BITSTREAM_READUINT(raw, bits, ptr, value, bitPtr);
+            dequant = OI_SBC_Dequant(raw, sf, bits);
+            /*
+             * Check if we need to do mid/side
+             */
+            if (joint & 0x80) {
+                OI_INT32 mid = *(s - NROF_SUBBANDS);
+                OI_INT32 side = dequant;
+                *(s - NROF_SUBBANDS) = mid + side;
+                dequant = mid - side;
+            }
+            joint <<= 1;
+            *s++ = dequant;
+        } while (--sb);
+    } while (--bl);
+}
diff --git a/rtkbt/code/bt/embdrv/sbc/decoder/srce/synthesis-8-generated.c b/rtkbt/code/bt/embdrv/sbc/decoder/srce/synthesis-8-generated.c
new file mode 100755
index 0000000..c33498e
--- /dev/null
+++ b/rtkbt/code/bt/embdrv/sbc/decoder/srce/synthesis-8-generated.c
@@ -0,0 +1,135 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 The Android Open Source Project
+ *  Copyright 2003 - 2004 Open Interface North America, Inc. All rights reserved.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/**
+ @file
+
+ DO NOT EDIT THIS FILE DIRECTLY
+
+ This file is automatically generated by the "synthesis-gen.pl" script.
+ Any changes to this generated file will be lost when the script is re-run.
+
+ These functions are called by functions in synthesis.c to perform the synthesis
+ filterbank computations for the SBC decoder.
+
+
+ */
+
+#include <oi_codec_sbc_private.h>
+
+#ifndef CLIP_INT16
+#define CLIP_INT16(x) do { if (x > OI_INT16_MAX) { x = OI_INT16_MAX; } else if (x < OI_INT16_MIN) { x = OI_INT16_MIN; } } while (0)
+#endif
+
+#define MUL_16S_16S(_x, _y) ((_x) * (_y))
+
+PRIVATE void SynthWindow80_generated(OI_INT16 *pcm, SBC_BUFFER_T const * RESTRICT buffer, OI_UINT strideShift)
+{
+    OI_INT32 pcm_a, pcm_b;
+    /* 1 - stage 0 */ pcm_b = 0;
+    /* 1 - stage 0 */ pcm_b +=(MUL_16S_16S(8235, buffer[ 12]))>> 3;
+    /* 1 - stage 0 */ pcm_b +=(MUL_16S_16S(-23167, buffer[ 20]))>> 3;
+    /* 1 - stage 0 */ pcm_b +=(MUL_16S_16S(26479, buffer[ 28]))>> 2;
+    /* 1 - stage 0 */ pcm_b +=(MUL_16S_16S(-17397, buffer[ 36]))<< 1;
+    /* 1 - stage 0 */ pcm_b +=(MUL_16S_16S(9399, buffer[ 44]))<< 3;
+    /* 1 - stage 0 */ pcm_b +=(MUL_16S_16S(17397, buffer[ 52]))<< 1;
+    /* 1 - stage 0 */ pcm_b +=(MUL_16S_16S(26479, buffer[ 60]))>> 2;
+    /* 1 - stage 0 */ pcm_b +=(MUL_16S_16S(23167, buffer[ 68]))>> 3;
+    /* 1 - stage 0 */ pcm_b +=(MUL_16S_16S(8235, buffer[ 76]))>> 3;
+    /* 1 - stage 0 */ pcm_b /= 32768; CLIP_INT16(pcm_b); pcm[0<<strideShift] = (OI_INT16)pcm_b;
+    /* 1 - stage 1 */ pcm_a = 0;
+    /* 1 - stage 1 */ pcm_b = 0;
+    /* 1 - stage 1 */ pcm_a +=(MUL_16S_16S(-3263, buffer[  5]))>> 5;
+    /* 1 - stage 1 */ pcm_b +=(MUL_16S_16S(9293, buffer[  5]))>> 3;
+    /* 1 - stage 1 */ pcm_a +=(MUL_16S_16S(29293, buffer[ 11]))>> 5;
+    /* 1 - stage 1 */ pcm_b +=(MUL_16S_16S(-6087, buffer[ 11]))>> 2;
+    /* 1 - stage 1 */ pcm_a +=(MUL_16S_16S(-5229, buffer[ 21]));
+    /* 1 - stage 1 */ pcm_b +=(MUL_16S_16S(1247, buffer[ 21]))<< 3;
+    /* 1 - stage 1 */ pcm_a +=(MUL_16S_16S(30835, buffer[ 27]))>> 3;
+    /* 1 - stage 1 */ pcm_b +=(MUL_16S_16S(-2893, buffer[ 27]))<< 3;
+    /* 1 - stage 1 */ pcm_a +=(MUL_16S_16S(-27021, buffer[ 37]))<< 1;
+    /* 1 - stage 1 */ pcm_b +=(MUL_16S_16S(23671, buffer[ 37]))<< 2;
+    /* 1 - stage 1 */ pcm_a +=(MUL_16S_16S(31633, buffer[ 43]))<< 1;
+    /* 1 - stage 1 */ pcm_b +=(MUL_16S_16S(18055, buffer[ 43]))<< 1;
+    /* 1 - stage 1 */ pcm_a +=(MUL_16S_16S(17319, buffer[ 53]))<< 1;
+    /* 1 - stage 1 */ pcm_b +=(MUL_16S_16S(11537, buffer[ 53]))>> 1;
+    /* 1 - stage 1 */ pcm_a +=(MUL_16S_16S(26663, buffer[ 59]))>> 2;
+    /* 1 - stage 1 */ pcm_b +=(MUL_16S_16S(1747, buffer[ 59]))<< 1;
+    /* 1 - stage 1 */ pcm_a +=(MUL_16S_16S(4555, buffer[ 69]))>> 1;
+    /* 1 - stage 1 */ pcm_b +=(MUL_16S_16S(685, buffer[ 69]))<< 1;
+    /* 1 - stage 1 */ pcm_a +=(MUL_16S_16S(12419, buffer[ 75]))>> 4;
+    /* 1 - stage 1 */ pcm_b +=(MUL_16S_16S(8721, buffer[ 75]))>> 7;
+    /* 1 - stage 1 */ pcm_a /= 32768; CLIP_INT16(pcm_a); pcm[1<<strideShift] = (OI_INT16)pcm_a;
+    /* 1 - stage 1 */ pcm_b /= 32768; CLIP_INT16(pcm_b); pcm[7<<strideShift] = (OI_INT16)pcm_b;
+    /* 1 - stage 2 */ pcm_a = 0;
+    /* 1 - stage 2 */ pcm_b = 0;
+    /* 1 - stage 2 */ pcm_a +=(MUL_16S_16S(-10385, buffer[  6]))>> 6;
+    /* 1 - stage 2 */ pcm_b +=(MUL_16S_16S(11167, buffer[  6]))>> 4;
+    /* 1 - stage 2 */ pcm_a +=(MUL_16S_16S(24995, buffer[ 10]))>> 5;
+    /* 1 - stage 2 */ pcm_b +=(MUL_16S_16S(-10337, buffer[ 10]))>> 4;
+    /* 1 - stage 2 */ pcm_a +=(MUL_16S_16S(-309, buffer[ 22]))<< 4;
+    /* 1 - stage 2 */ pcm_b +=(MUL_16S_16S(1917, buffer[ 22]))<< 2;
+    /* 1 - stage 2 */ pcm_a +=(MUL_16S_16S(9161, buffer[ 26]))>> 3;
+    /* 1 - stage 2 */ pcm_b +=(MUL_16S_16S(-30605, buffer[ 26]))>> 1;
+    /* 1 - stage 2 */ pcm_a +=(MUL_16S_16S(-23063, buffer[ 38]))<< 1;
+    /* 1 - stage 2 */ pcm_b +=(MUL_16S_16S(8317, buffer[ 38]))<< 3;
+    /* 1 - stage 2 */ pcm_a +=(MUL_16S_16S(27561, buffer[ 42]))<< 1;
+    /* 1 - stage 2 */ pcm_b +=(MUL_16S_16S(9553, buffer[ 42]))<< 2;
+    /* 1 - stage 2 */ pcm_a +=(MUL_16S_16S(2309, buffer[ 54]))<< 3;
+    /* 1 - stage 2 */ pcm_b +=(MUL_16S_16S(22117, buffer[ 54]))>> 4;
+    /* 1 - stage 2 */ pcm_a +=(MUL_16S_16S(12705, buffer[ 58]))>> 1;
+    /* 1 - stage 2 */ pcm_b +=(MUL_16S_16S(16383, buffer[ 58]))>> 2;
+    /* 1 - stage 2 */ pcm_a +=(MUL_16S_16S(6239, buffer[ 70]))>> 3;
+    /* 1 - stage 2 */ pcm_b +=(MUL_16S_16S(7543, buffer[ 70]))>> 3;
+    /* 1 - stage 2 */ pcm_a +=(MUL_16S_16S(9251, buffer[ 74]))>> 4;
+    /* 1 - stage 2 */ pcm_b +=(MUL_16S_16S(8603, buffer[ 74]))>> 6;
+    /* 1 - stage 2 */ pcm_a /= 32768; CLIP_INT16(pcm_a); pcm[2<<strideShift] = (OI_INT16)pcm_a;
+    /* 1 - stage 2 */ pcm_b /= 32768; CLIP_INT16(pcm_b); pcm[6<<strideShift] = (OI_INT16)pcm_b;
+    /* 1 - stage 3 */ pcm_a = 0;
+    /* 1 - stage 3 */ pcm_b = 0;
+    /* 1 - stage 3 */ pcm_a +=(MUL_16S_16S(-16457, buffer[  7]))>> 6;
+    /* 1 - stage 3 */ pcm_b +=(MUL_16S_16S(16913, buffer[  7]))>> 5;
+    /* 1 - stage 3 */ pcm_a +=(MUL_16S_16S(19083, buffer[  9]))>> 5;
+    /* 1 - stage 3 */ pcm_b +=(MUL_16S_16S(-8443, buffer[  9]))>> 7;
+    /* 1 - stage 3 */ pcm_a +=(MUL_16S_16S(-23641, buffer[ 23]))>> 2;
+    /* 1 - stage 3 */ pcm_b +=(MUL_16S_16S(3687, buffer[ 23]))<< 1;
+    /* 1 - stage 3 */ pcm_a +=(MUL_16S_16S(-29015, buffer[ 25]))>> 4;
+    /* 1 - stage 3 */ pcm_b +=(MUL_16S_16S(-301, buffer[ 25]))<< 5;
+    /* 1 - stage 3 */ pcm_a +=(MUL_16S_16S(-12889, buffer[ 39]))<< 2;
+    /* 1 - stage 3 */ pcm_b +=(MUL_16S_16S(15447, buffer[ 39]))<< 2;
+    /* 1 - stage 3 */ pcm_a +=(MUL_16S_16S(6145, buffer[ 41]))<< 3;
+    /* 1 - stage 3 */ pcm_b +=(MUL_16S_16S(10255, buffer[ 41]))<< 2;
+    /* 1 - stage 3 */ pcm_a +=(MUL_16S_16S(24211, buffer[ 55]))>> 1;
+    /* 1 - stage 3 */ pcm_b +=(MUL_16S_16S(-18233, buffer[ 55]))>> 3;
+    /* 1 - stage 3 */ pcm_a +=(MUL_16S_16S(23469, buffer[ 57]))>> 2;
+    /* 1 - stage 3 */ pcm_b +=(MUL_16S_16S(9405, buffer[ 57]))>> 1;
+    /* 1 - stage 3 */ pcm_a +=(MUL_16S_16S(21223, buffer[ 71]))>> 8;
+    /* 1 - stage 3 */ pcm_b +=(MUL_16S_16S(1499, buffer[ 71]))>> 1;
+    /* 1 - stage 3 */ pcm_a +=(MUL_16S_16S(26913, buffer[ 73]))>> 6;
+    /* 1 - stage 3 */ pcm_b +=(MUL_16S_16S(26189, buffer[ 73]))>> 7;
+    /* 1 - stage 3 */ pcm_a /= 32768; CLIP_INT16(pcm_a); pcm[3<<strideShift] = (OI_INT16)pcm_a;
+    /* 1 - stage 3 */ pcm_b /= 32768; CLIP_INT16(pcm_b); pcm[5<<strideShift] = (OI_INT16)pcm_b;
+    /* 1 - stage 4 */ pcm_a = 0;
+    /* 1 - stage 4 */ pcm_a +=(MUL_16S_16S(10445, buffer[  8]))>> 4;
+    /* 1 - stage 4 */ pcm_a +=(MUL_16S_16S(-5297, buffer[ 24]))<< 1;
+    /* 1 - stage 4 */ pcm_a +=(MUL_16S_16S(22299, buffer[ 40]))<< 2;
+    /* 1 - stage 4 */ pcm_a +=(MUL_16S_16S(10603, buffer[ 56]));
+    /* 1 - stage 4 */ pcm_a +=(MUL_16S_16S(9539, buffer[ 72]))>> 4;
+    /* 1 - stage 4 */ pcm_a /= 32768; CLIP_INT16(pcm_a); pcm[4<<strideShift] = (OI_INT16)pcm_a;
+}
diff --git a/rtkbt/code/bt/embdrv/sbc/decoder/srce/synthesis-dct8.c b/rtkbt/code/bt/embdrv/sbc/decoder/srce/synthesis-dct8.c
new file mode 100755
index 0000000..4280758
--- /dev/null
+++ b/rtkbt/code/bt/embdrv/sbc/decoder/srce/synthesis-dct8.c
@@ -0,0 +1,305 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 The Android Open Source Project
+ *  Copyright 2003 - 2004 Open Interface North America, Inc. All rights reserved.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/**********************************************************************************
+  $Revision: #1 $
+***********************************************************************************/
+
+/** @file
+@ingroup codec_internal
+*/
+
+/**@addgroup codec_internal*/
+/**@{*/
+
+/*
+ * Performs an 8-point Type-II scaled DCT using the Arai-Agui-Nakajima
+ * factorization. The scaling factors are folded into the windowing
+ * constants. 29 adds and 5 16x32 multiplies per 8 samples.
+ */
+
+#include "oi_codec_sbc_private.h"
+
+#define AAN_C4_FIX (759250125)/* S1.30  759250125   0.707107*/
+
+#define AAN_C6_FIX (410903207)/* S1.30  410903207   0.382683*/
+
+#define AAN_Q0_FIX (581104888)/* S1.30  581104888   0.541196*/
+
+#define AAN_Q1_FIX (1402911301)/* S1.30 1402911301   1.306563*/
+
+/** Scales x by y bits to the right, adding a rounding factor.
+ */
+#ifndef SCALE
+#define SCALE(x, y) (((x) + (1 <<((y)-1))) >> (y))
+#endif
+
+/**
+ * Default C language implementation of a 32x32->32 multiply. This function may
+ * be replaced by a platform-specific version for speed.
+ *
+ * @param u A signed 32-bit multiplicand
+ * @param v A signed 32-bit multiplier
+
+ * @return  A signed 32-bit value corresponding to the 32 most significant bits
+ * of the 64-bit product of u and v.
+ */
+INLINE OI_INT32 default_mul_32s_32s_hi(OI_INT32 u, OI_INT32 v)
+{
+    OI_UINT32 u0, v0;
+    OI_INT32 u1, v1, w1, w2, t;
+
+    u0 = u & 0xFFFF; u1 = u >> 16;
+    v0 = v & 0xFFFF; v1 = v >> 16;
+    t = u0*v0;
+    t = u1*v0 + ((OI_UINT32)t >> 16);
+    w1 = t & 0xFFFF;
+    w2 = t >> 16;
+    w1 = u0*v1 + w1;
+    return u1*v1 + w2 + (w1 >> 16);
+}
+
+#define MUL_32S_32S_HI(_x, _y) default_mul_32s_32s_hi(_x, _y)
+
+
+#ifdef DEBUG_DCT
+PRIVATE void float_dct2_8(float * RESTRICT out, OI_INT32 const *RESTRICT in)
+{
+#define FIX(x,bits) (((int)floor(0.5f+((x)*((float)(1<<bits)))))/((float)(1<<bits)))
+#define FLOAT_BUTTERFLY(x,y) x += y; y = x - (y*2); OI_ASSERT(VALID_INT32(x)); OI_ASSERT(VALID_INT32(y));
+#define FLOAT_MULT_DCT(K, sample) (FIX(K,20) * sample)
+#define FLOAT_SCALE(x, y) (((x) / (double)(1 << (y))))
+
+    double L00,L01,L02,L03,L04,L05,L06,L07;
+    double L25;
+
+    double in0,in1,in2,in3;
+    double in4,in5,in6,in7;
+
+    in0 = FLOAT_SCALE(in[0], DCTII_8_SHIFT_IN); OI_ASSERT(VALID_INT32(in0));
+    in1 = FLOAT_SCALE(in[1], DCTII_8_SHIFT_IN); OI_ASSERT(VALID_INT32(in1));
+    in2 = FLOAT_SCALE(in[2], DCTII_8_SHIFT_IN); OI_ASSERT(VALID_INT32(in2));
+    in3 = FLOAT_SCALE(in[3], DCTII_8_SHIFT_IN); OI_ASSERT(VALID_INT32(in3));
+    in4 = FLOAT_SCALE(in[4], DCTII_8_SHIFT_IN); OI_ASSERT(VALID_INT32(in4));
+    in5 = FLOAT_SCALE(in[5], DCTII_8_SHIFT_IN); OI_ASSERT(VALID_INT32(in5));
+    in6 = FLOAT_SCALE(in[6], DCTII_8_SHIFT_IN); OI_ASSERT(VALID_INT32(in6));
+    in7 = FLOAT_SCALE(in[7], DCTII_8_SHIFT_IN); OI_ASSERT(VALID_INT32(in7));
+
+    L00 = (in0 + in7); OI_ASSERT(VALID_INT32(L00));
+    L01 = (in1 + in6); OI_ASSERT(VALID_INT32(L01));
+    L02 = (in2 + in5); OI_ASSERT(VALID_INT32(L02));
+    L03 = (in3 + in4); OI_ASSERT(VALID_INT32(L03));
+
+    L04 = (in3 - in4); OI_ASSERT(VALID_INT32(L04));
+    L05 = (in2 - in5); OI_ASSERT(VALID_INT32(L05));
+    L06 = (in1 - in6); OI_ASSERT(VALID_INT32(L06));
+    L07 = (in0 - in7); OI_ASSERT(VALID_INT32(L07));
+
+    FLOAT_BUTTERFLY(L00, L03);
+    FLOAT_BUTTERFLY(L01, L02);
+
+    L02 += L03; OI_ASSERT(VALID_INT32(L02));
+
+    L02 = FLOAT_MULT_DCT(AAN_C4_FLOAT, L02); OI_ASSERT(VALID_INT32(L02));
+
+    FLOAT_BUTTERFLY(L00, L01);
+
+    out[0] = (float)FLOAT_SCALE(L00, DCTII_8_SHIFT_0); OI_ASSERT(VALID_INT16(out[0]));
+    out[4] = (float)FLOAT_SCALE(L01, DCTII_8_SHIFT_4); OI_ASSERT(VALID_INT16(out[4]));
+
+    FLOAT_BUTTERFLY(L03, L02);
+    out[6] = (float)FLOAT_SCALE(L02, DCTII_8_SHIFT_6); OI_ASSERT(VALID_INT16(out[6]));
+    out[2] = (float)FLOAT_SCALE(L03, DCTII_8_SHIFT_2); OI_ASSERT(VALID_INT16(out[2]));
+
+    L04 += L05; OI_ASSERT(VALID_INT32(L04));
+    L05 += L06; OI_ASSERT(VALID_INT32(L05));
+    L06 += L07; OI_ASSERT(VALID_INT32(L06));
+
+    L04/=2;
+    L05/=2;
+    L06/=2;
+    L07/=2;
+
+    L05 = FLOAT_MULT_DCT(AAN_C4_FLOAT, L05); OI_ASSERT(VALID_INT32(L05));
+
+    L25 = L06 - L04; OI_ASSERT(VALID_INT32(L25));
+    L25 = FLOAT_MULT_DCT(AAN_C6_FLOAT, L25); OI_ASSERT(VALID_INT32(L25));
+
+    L04 = FLOAT_MULT_DCT(AAN_Q0_FLOAT, L04); OI_ASSERT(VALID_INT32(L04));
+    L04 -= L25; OI_ASSERT(VALID_INT32(L04));
+
+    L06 = FLOAT_MULT_DCT(AAN_Q1_FLOAT, L06); OI_ASSERT(VALID_INT32(L06));
+    L06 -= L25; OI_ASSERT(VALID_INT32(L25));
+
+    FLOAT_BUTTERFLY(L07, L05);
+
+    FLOAT_BUTTERFLY(L05, L04);
+    out[3] = (float)(FLOAT_SCALE(L04, DCTII_8_SHIFT_3-1)); OI_ASSERT(VALID_INT16(out[3]));
+    out[5] = (float)(FLOAT_SCALE(L05, DCTII_8_SHIFT_5-1)); OI_ASSERT(VALID_INT16(out[5]));
+
+    FLOAT_BUTTERFLY(L07, L06);
+    out[7] = (float)(FLOAT_SCALE(L06, DCTII_8_SHIFT_7-1)); OI_ASSERT(VALID_INT16(out[7]));
+    out[1] = (float)(FLOAT_SCALE(L07, DCTII_8_SHIFT_1-1)); OI_ASSERT(VALID_INT16(out[1]));
+}
+#undef BUTTERFLY
+#endif
+
+
+/*
+ * This function calculates the AAN DCT. Its inputs are in S16.15 format, as
+ * returned by OI_SBC_Dequant. In practice, abs(in[x]) < 52429.0 / 1.38
+ * (1244918057 integer). The function it computes is an approximation to the array defined
+ * by:
+ *
+ * diag(aan_s) * AAN= C2
+ *
+ *   or
+ *
+ * AAN = diag(1/aan_s) * C2
+ *
+ * where C2 is as it is defined in the comment at the head of this file, and
+ *
+ * aan_s[i] = aan_s = 1/(2*cos(i*pi/16)) with i = 1..7, aan_s[0] = 1;
+ *
+ * aan_s[i] = [ 1.000  0.510  0.541  0.601  0.707  0.900  1.307  2.563 ]
+ *
+ * The output ranges are shown as follows:
+ *
+ * Let Y[0..7] = AAN * X[0..7]
+ *
+ * Without loss of generality, assume the input vector X consists of elements
+ * between -1 and 1. The maximum possible value of a given output element occurs
+ * with some particular combination of input vector elements each of which is -1
+ * or 1. Consider the computation of Y[i]. Y[i] = sum t=0..7 of AAN[t,i]*X[i]. Y is
+ * maximized if the sign of X[i] matches the sign of AAN[t,i], ensuring a
+ * positive contribution to the sum. Equivalently, one may simply sum
+ * abs(AAN)[t,i] over t to get the maximum possible value of Y[i].
+ *
+ * This yields approximately [8.00  10.05   9.66   8.52   8.00   5.70   4.00   2.00]
+ *
+ * Given the maximum magnitude sensible input value of +/-37992, this yields the
+ * following vector of maximum output magnitudes:
+ *
+ * [ 303936  381820  367003  323692  303936  216555  151968   75984 ]
+ *
+ * Ultimately, these values must fit into 16 bit signed integers, so they must
+ * be scaled. A non-uniform scaling helps maximize the kept precision. The
+ * relative number of extra bits of precision maintainable with respect to the
+ * largest value is given here:
+ *
+ * [ 0  0  0  0  0  0  1  2 ]
+ *
+ */
+PRIVATE void dct2_8(SBC_BUFFER_T * RESTRICT out, OI_INT32 const *RESTRICT in)
+{
+#define BUTTERFLY(x,y) x += y; y = x - (y<<1);
+#define FIX_MULT_DCT(K, x) (MUL_32S_32S_HI(K,x)<<2)
+
+    OI_INT32 L00,L01,L02,L03,L04,L05,L06,L07;
+    OI_INT32 L25;
+
+    OI_INT32 in0,in1,in2,in3;
+    OI_INT32 in4,in5,in6,in7;
+
+#if DCTII_8_SHIFT_IN != 0
+    in0 = SCALE(in[0], DCTII_8_SHIFT_IN);
+    in1 = SCALE(in[1], DCTII_8_SHIFT_IN);
+    in2 = SCALE(in[2], DCTII_8_SHIFT_IN);
+    in3 = SCALE(in[3], DCTII_8_SHIFT_IN);
+    in4 = SCALE(in[4], DCTII_8_SHIFT_IN);
+    in5 = SCALE(in[5], DCTII_8_SHIFT_IN);
+    in6 = SCALE(in[6], DCTII_8_SHIFT_IN);
+    in7 = SCALE(in[7], DCTII_8_SHIFT_IN);
+#else
+    in0 = in[0];
+    in1 = in[1];
+    in2 = in[2];
+    in3 = in[3];
+    in4 = in[4];
+    in5 = in[5];
+    in6 = in[6];
+    in7 = in[7];
+#endif
+
+    L00 = in0 + in7;
+    L01 = in1 + in6;
+    L02 = in2 + in5;
+    L03 = in3 + in4;
+
+    L04 = in3 - in4;
+    L05 = in2 - in5;
+    L06 = in1 - in6;
+    L07 = in0 - in7;
+
+    BUTTERFLY(L00, L03);
+    BUTTERFLY(L01, L02);
+
+    L02 += L03;
+
+    L02 = FIX_MULT_DCT(AAN_C4_FIX, L02);
+
+    BUTTERFLY(L00, L01);
+
+    out[0] = (OI_INT16)SCALE(L00, DCTII_8_SHIFT_0);
+    out[4] = (OI_INT16)SCALE(L01, DCTII_8_SHIFT_4);
+
+    BUTTERFLY(L03, L02);
+    out[6] = (OI_INT16)SCALE(L02, DCTII_8_SHIFT_6);
+    out[2] = (OI_INT16)SCALE(L03, DCTII_8_SHIFT_2);
+
+    L04 += L05;
+    L05 += L06;
+    L06 += L07;
+
+    L04/=2;
+    L05/=2;
+    L06/=2;
+    L07/=2;
+
+    L05 = FIX_MULT_DCT(AAN_C4_FIX, L05);
+
+    L25 = L06 - L04;
+    L25 = FIX_MULT_DCT(AAN_C6_FIX, L25);
+
+    L04 = FIX_MULT_DCT(AAN_Q0_FIX, L04);
+    L04 -= L25;
+
+    L06 = FIX_MULT_DCT(AAN_Q1_FIX, L06);
+    L06 -= L25;
+
+    BUTTERFLY(L07, L05);
+
+    BUTTERFLY(L05, L04);
+    out[3] = (OI_INT16)SCALE(L04, DCTII_8_SHIFT_3-1);
+    out[5] = (OI_INT16)SCALE(L05, DCTII_8_SHIFT_5-1);
+
+    BUTTERFLY(L07, L06);
+    out[7] = (OI_INT16)SCALE(L06, DCTII_8_SHIFT_7-1);
+    out[1] = (OI_INT16)SCALE(L07, DCTII_8_SHIFT_1-1);
+#undef BUTTERFLY
+
+#ifdef DEBUG_DCT
+    {
+        float float_out[8];
+        float_dct2_8(float_out, in);
+    }
+#endif
+}
+
+/**@}*/
diff --git a/rtkbt/code/bt/embdrv/sbc/decoder/srce/synthesis-sbc.c b/rtkbt/code/bt/embdrv/sbc/decoder/srce/synthesis-sbc.c
new file mode 100755
index 0000000..38c6f17
--- /dev/null
+++ b/rtkbt/code/bt/embdrv/sbc/decoder/srce/synthesis-sbc.c
@@ -0,0 +1,510 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 The Android Open Source Project
+ *  Copyright 2003 - 2004 Open Interface North America, Inc. All rights reserved.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/**********************************************************************************
+  $Revision: #1 $
+***********************************************************************************/
+
+/** @file
+
+This file, along with synthesis-generated.c, contains the synthesis
+filterbank routines. The operations performed correspond to the
+operations described in A2DP Appendix B, Figure 12.3. Several
+mathematical optimizations are performed, particularly for the
+8-subband case.
+
+One important optimization is to note that the "matrixing" operation
+can be decomposed into the product of a type II discrete cosine kernel
+and another, sparse matrix.
+
+According to Fig 12.3, in the 8-subband case,
+@code
+    N[k][i] = cos((i+0.5)*(k+4)*pi/8), k = 0..15 and i = 0..7
+@endcode
+
+N can be factored as R * C2, where C2 is an 8-point type II discrete
+cosine kernel given by
+@code
+    C2[k][i] = cos((i+0.5)*k*pi/8)), k = 0..7 and i = 0..7
+@endcode
+
+R turns out to be a sparse 16x8 matrix with the following non-zero
+entries:
+@code
+    R[k][k+4]        =  1,   k = 0..3
+    R[k][abs(12-k)]  = -1,   k = 5..15
+@endcode
+
+The spec describes computing V[0..15] as N * R.
+@code
+    V[0..15] = N * R = (R * C2) * R = R * (C2 * R)
+@endcode
+
+C2 * R corresponds to computing the discrete cosine transform of R, so
+V[0..15] can be computed by taking the DCT of R followed by assignment
+and selective negation of the DCT result into V.
+
+        Although this was derived empirically using GNU Octave, it is
+        formally demonstrated in, e.g., Liu, Chi-Min and Lee,
+        Wen-Chieh. "A Unified Fast Algorithm for Cosine Modulated
+        Filter Banks in Current Audio Coding Standards." Journal of
+        the AES 47 (December 1999): 1061.
+
+Given the shift operation performed prior to computing V[0..15], it is
+clear that V[0..159] represents a rolling history of the 10 most
+recent groups of blocks input to the synthesis operation. Interpreting
+the matrix N in light of its factorization into C2 and R, R's
+sparseness has implications for interpreting the values in V. In
+particular, there is considerable redundancy in the values stored in
+V. Furthermore, since R[4][0..7] are all zeros, one out of every 16
+values in V will be zero regardless of the input data. Within each
+block of 16 values in V, fully half of them are redundant or
+irrelevant:
+
+@code
+    V[ 0] =  DCT[4]
+    V[ 1] =  DCT[5]
+    V[ 2] =  DCT[6]
+    V[ 3] =  DCT[7]
+    V[ 4] = 0
+    V[ 5] = -DCT[7] = -V[3] (redundant)
+    V[ 6] = -DCT[6] = -V[2] (redundant)
+    V[ 7] = -DCT[5] = -V[1] (redundant)
+    V[ 8] = -DCT[4] = -V[0] (redundant)
+    V[ 9] = -DCT[3]
+    V[10] = -DCT[2]
+    V[11] = -DCT[1]
+    V[12] = -DCT[0]
+    V[13] = -DCT[1] = V[11] (redundant)
+    V[14] = -DCT[2] = V[10] (redundant)
+    V[15] = -DCT[3] = V[ 9] (redundant)
+@endcode
+
+Since the elements of V beyond 15 were originally computed the same
+way during a previous run, what holds true for V[x] also holds true
+for V[x+16]. Thus, so long as care is taken to maintain the mapping,
+we need only actually store the unique values, which correspond to the
+output of the DCT, in some cases inverted. In fact, instead of storing
+V[0..159], we could store DCT[0..79] which would contain a history of
+DCT results. More on this in a bit.
+
+Going back to figure 12.3 in the spec, it should be clear that the
+vector U need not actually be explicitly constructed, but that with
+suitable indexing into V during the window operation, the same end can
+be accomplished. In the same spirit of the pseudocode shown in the
+figure, the following is the construction of W without using U:
+
+@code
+    for i=0 to 79 do
+        W[i] = D[i]*VSIGN(i)*V[remap_V(i)] where remap_V(i) = 32*(int(i/16)) + (i % 16) + (i % 16 >= 8 ? 16 : 0)
+                                             and VSIGN(i) maps i%16 into {1, 1, 1, 1, 0, -1, -1, -1, -1, 1, 1, 1, 1, 1, 1 }
+                                             These values correspond to the
+                                             signs of the redundant values as
+                                             shown in the explanation three
+                                             paragraphs above.
+@endcode
+
+We saw above how V[4..8,13..15] (and by extension
+V[(4..8,13..15)+16*n]) can be defined in terms of other elements
+within the subblock of V. V[0..3,9..12] correspond to DCT elements.
+
+@code
+    for i=0 to 79 do
+        W[i] = D[i]*DSIGN(i)*DCT[remap_DCT(i)]
+@endcode
+
+The DCT is calculated using the Arai-Agui-Nakajima factorization,
+which saves some computation by producing output that needs to be
+multiplied by scaling factors before being used.
+
+@code
+    for i=0 to 79 do
+        W[i] = D[i]*SCALE[i%8]*AAN_DCT[remap_DCT(i)]
+@endcode
+
+D can be premultiplied with the DCT scaling factors to yield
+
+@code
+    for i=0 to 79 do
+        W[i] = DSCALED[i]*AAN_DCT[remap_DCT(i)] where DSCALED[i] = D[i]*SCALE[i%8]
+@endcode
+
+The output samples X[0..7] are defined as sums of W:
+
+@code
+        X[j] = sum{i=0..9}(W[j+8*i])
+@endcode
+
+@ingroup codec_internal
+*/
+
+/**
+@addtogroup codec_internal
+@{
+*/
+
+#include "oi_codec_sbc_private.h"
+
+const OI_INT32 dec_window_4[21] = {
+           0,        /* +0.00000000E+00 */
+          97,        /* +5.36548976E-04 */
+         270,        /* +1.49188357E-03 */
+         495,        /* +2.73370904E-03 */
+         694,        /* +3.83720193E-03 */
+         704,        /* +3.89205149E-03 */
+         338,        /* +1.86581691E-03 */
+        -554,        /* -3.06012286E-03 */
+        1974,        /* +1.09137620E-02 */
+        3697,        /* +2.04385087E-02 */
+        5224,        /* +2.88757392E-02 */
+        5824,        /* +3.21939290E-02 */
+        4681,        /* +2.58767811E-02 */
+        1109,        /* +6.13245186E-03 */
+       -5214,        /* -2.88217274E-02 */
+      -14047,        /* -7.76463494E-02 */
+       24529,        /* +1.35593274E-01 */
+       35274,        /* +1.94987841E-01 */
+       44618,        /* +2.46636662E-01 */
+       50984,        /* +2.81828203E-01 */
+       53243,        /* +2.94315332E-01 */
+};
+
+#define DCTII_4_K06_FIX ( 11585)/* S1.14      11585   0.707107*/
+
+#define DCTII_4_K08_FIX ( 21407)/* S1.14      21407   1.306563*/
+
+#define DCTII_4_K09_FIX (-15137)/* S1.14     -15137  -0.923880*/
+
+#define DCTII_4_K10_FIX ( -8867)/* S1.14      -8867  -0.541196*/
+
+/** Scales x by y bits to the right, adding a rounding factor.
+ */
+#ifndef SCALE
+#define SCALE(x, y) (((x) + (1 <<((y)-1))) >> (y))
+#endif
+
+#ifndef CLIP_INT16
+#define CLIP_INT16(x) do { if (x > OI_INT16_MAX) { x = OI_INT16_MAX; } else if (x < OI_INT16_MIN) { x = OI_INT16_MIN; } } while (0)
+#endif
+
+/**
+ * Default C language implementation of a 16x32->32 multiply. This function may
+ * be replaced by a platform-specific version for speed.
+ *
+ * @param u A signed 16-bit multiplicand
+ * @param v A signed 32-bit multiplier
+
+ * @return  A signed 32-bit value corresponding to the 32 most significant bits
+ * of the 48-bit product of u and v.
+ */
+INLINE OI_INT32 default_mul_16s_32s_hi(OI_INT16 u, OI_INT32 v)
+{
+    OI_UINT16 v0;
+    OI_INT16 v1;
+
+    OI_INT32 w,x;
+
+    v0 = (OI_UINT16)(v & 0xffff);
+    v1 = (OI_INT16) (v >> 16);
+
+    w = v1 * u;
+    x = u * v0;
+
+    return w + (x >> 16);
+}
+
+#define MUL_16S_32S_HI(_x, _y) default_mul_16s_32s_hi(_x, _y)
+
+#define LONG_MULT_DCT(K, sample) (MUL_16S_32S_HI(K, sample)<<2)
+
+PRIVATE void SynthWindow80_generated(OI_INT16 *pcm, SBC_BUFFER_T const * RESTRICT buffer, OI_UINT strideShift);
+PRIVATE void SynthWindow112_generated(OI_INT16 *pcm, SBC_BUFFER_T const * RESTRICT buffer, OI_UINT strideShift);
+PRIVATE void dct2_8(SBC_BUFFER_T * RESTRICT out, OI_INT32 const * RESTRICT x);
+
+typedef void (*SYNTH_FRAME)(OI_CODEC_SBC_DECODER_CONTEXT *context, OI_INT16 *pcm, OI_UINT blkstart, OI_UINT blkcount);
+
+#ifndef COPY_BACKWARD_32BIT_ALIGNED_72_HALFWORDS
+#define COPY_BACKWARD_32BIT_ALIGNED_72_HALFWORDS(dest, src) do { shift_buffer(dest, src, 72); } while (0)
+#endif
+
+#ifndef DCT2_8
+#define DCT2_8(dst, src) dct2_8(dst, src)
+#endif
+
+#ifndef SYNTH80
+#define SYNTH80 SynthWindow80_generated
+#endif
+
+#ifndef SYNTH112
+#define SYNTH112 SynthWindow112_generated
+#endif
+
+PRIVATE void OI_SBC_SynthFrame_80(OI_CODEC_SBC_DECODER_CONTEXT *context, OI_INT16 *pcm, OI_UINT blkstart, OI_UINT blkcount)
+{
+    OI_UINT blk;
+    OI_UINT ch;
+    OI_UINT nrof_channels = context->common.frameInfo.nrof_channels;
+    OI_UINT pcmStrideShift = context->common.pcmStride == 1 ? 0 : 1;
+    OI_UINT offset = context->common.filterBufferOffset;
+    OI_INT32 *s = context->common.subdata + 8 * nrof_channels * blkstart;
+    OI_UINT blkstop = blkstart + blkcount;
+
+    for (blk = blkstart; blk < blkstop; blk++) {
+        if (offset == 0) {
+            COPY_BACKWARD_32BIT_ALIGNED_72_HALFWORDS(context->common.filterBuffer[0] + context->common.filterBufferLen - 72, context->common.filterBuffer[0]);
+            if (nrof_channels == 2) {
+                COPY_BACKWARD_32BIT_ALIGNED_72_HALFWORDS(context->common.filterBuffer[1] + context->common.filterBufferLen - 72, context->common.filterBuffer[1]);
+            }
+            offset = context->common.filterBufferLen - 80;
+        } else {
+            offset -= 1*8;
+        }
+
+        for (ch = 0; ch < nrof_channels; ch++) {
+            DCT2_8(context->common.filterBuffer[ch] + offset, s);
+            SYNTH80(pcm + ch, context->common.filterBuffer[ch] + offset, pcmStrideShift);
+            s += 8;
+        }
+        pcm += (8 << pcmStrideShift);
+    }
+    context->common.filterBufferOffset = offset;
+}
+
+PRIVATE void OI_SBC_SynthFrame_4SB(OI_CODEC_SBC_DECODER_CONTEXT *context, OI_INT16 *pcm, OI_UINT blkstart, OI_UINT blkcount)
+{
+    OI_UINT blk;
+    OI_UINT ch;
+    OI_UINT nrof_channels = context->common.frameInfo.nrof_channels;
+    OI_UINT pcmStrideShift = context->common.pcmStride == 1 ? 0 : 1;
+    OI_UINT offset = context->common.filterBufferOffset;
+    OI_INT32 *s = context->common.subdata + 8 * nrof_channels * blkstart;
+    OI_UINT blkstop = blkstart + blkcount;
+
+    for (blk = blkstart; blk < blkstop; blk++) {
+        if (offset == 0) {
+            COPY_BACKWARD_32BIT_ALIGNED_72_HALFWORDS(context->common.filterBuffer[0] + context->common.filterBufferLen - 72,context->common.filterBuffer[0]);
+            if (nrof_channels == 2) {
+                COPY_BACKWARD_32BIT_ALIGNED_72_HALFWORDS(context->common.filterBuffer[1] + context->common.filterBufferLen - 72,context->common.filterBuffer[1]);
+            }
+            offset =context->common.filterBufferLen - 80;
+        } else {
+            offset -= 8;
+        }
+        for (ch = 0; ch < nrof_channels; ch++) {
+            cosineModulateSynth4(context->common.filterBuffer[ch] + offset, s);
+            SynthWindow40_int32_int32_symmetry_with_sum(pcm + ch,
+                                                        context->common.filterBuffer[ch] + offset,
+                                                        pcmStrideShift);
+            s += 4;
+        }
+        pcm += (4 << pcmStrideShift);
+    }
+    context->common.filterBufferOffset = offset;
+}
+
+#ifdef SBC_ENHANCED
+
+PRIVATE void OI_SBC_SynthFrame_Enhanced(OI_CODEC_SBC_DECODER_CONTEXT *context, OI_INT16 *pcm, OI_UINT blkstart, OI_UINT blkcount)
+{
+    OI_UINT blk;
+    OI_UINT ch;
+    OI_UINT nrof_channels = context->common.frameInfo.nrof_channels;
+    OI_UINT pcmStrideShift = context->common.pcmStride == 1 ? 0 : 1;
+    OI_UINT offset = context->common.filterBufferOffset;
+    OI_INT32 *s = context->common.subdata + 8 * nrof_channels * blkstart;
+    OI_UINT blkstop = blkstart + blkcount;
+
+    for (blk = blkstart; blk < blkstop; blk++) {
+        if (offset == 0) {
+            COPY_BACKWARD_32BIT_ALIGNED_104_HALFWORDS(context->common.filterBuffer[0] +context->common.filterBufferLen - 104, context->common.filterBuffer[0]);
+            if (nrof_channels == 2) {
+                COPY_BACKWARD_32BIT_ALIGNED_104_HALFWORDS(context->common.filterBuffer[1] + context->common.filterBufferLen - 104, context->common.filterBuffer[1]);
+            }
+            offset = context->common.filterBufferLen - 112;
+        } else {
+            offset -= 8;
+        }
+        for (ch = 0; ch < nrof_channels; ++ch) {
+            DCT2_8(context->common.filterBuffer[ch] + offset, s);
+            SYNTH112(pcm + ch, context->common.filterBuffer[ch] + offset, pcmStrideShift);
+            s += 8;
+        }
+        pcm += (8 << pcmStrideShift);
+    }
+    context->common.filterBufferOffset = offset;
+}
+
+static const SYNTH_FRAME SynthFrameEnhanced[] = {
+    NULL,                       /* invalid */
+    OI_SBC_SynthFrame_Enhanced, /* mono */
+    OI_SBC_SynthFrame_Enhanced  /* stereo */
+};
+
+#endif
+
+static const SYNTH_FRAME SynthFrame8SB[] = {
+    NULL,             /* invalid */
+    OI_SBC_SynthFrame_80, /* mono */
+    OI_SBC_SynthFrame_80  /* stereo */
+};
+
+
+static const SYNTH_FRAME SynthFrame4SB[] = {
+    NULL,                  /* invalid */
+    OI_SBC_SynthFrame_4SB, /* mono */
+    OI_SBC_SynthFrame_4SB  /* stereo */
+};
+
+PRIVATE void OI_SBC_SynthFrame(OI_CODEC_SBC_DECODER_CONTEXT *context, OI_INT16 *pcm, OI_UINT start_block, OI_UINT nrof_blocks)
+{
+    OI_UINT nrof_subbands = context->common.frameInfo.nrof_subbands;
+    OI_UINT nrof_channels = context->common.frameInfo.nrof_channels;
+
+    OI_ASSERT(nrof_subbands == 4 || nrof_subbands == 8);
+    if (nrof_subbands == 4) {
+        SynthFrame4SB[nrof_channels](context, pcm, start_block, nrof_blocks);
+#ifdef SBC_ENHANCED
+    } else if (context->common.frameInfo.enhanced) {
+        SynthFrameEnhanced[nrof_channels](context, pcm, start_block, nrof_blocks);
+#endif /* SBC_ENHANCED */
+        } else {
+        SynthFrame8SB[nrof_channels](context, pcm, start_block, nrof_blocks);
+    }
+}
+
+
+void SynthWindow40_int32_int32_symmetry_with_sum(OI_INT16 *pcm, SBC_BUFFER_T buffer[80], OI_UINT strideShift)
+{
+    OI_INT32 pa;
+    OI_INT32 pb;
+
+    /* These values should be zero, since out[2] of the 4-band cosine modulation
+     * is always zero. */
+    OI_ASSERT(buffer[ 2] == 0);
+    OI_ASSERT(buffer[10] == 0);
+    OI_ASSERT(buffer[18] == 0);
+    OI_ASSERT(buffer[26] == 0);
+    OI_ASSERT(buffer[34] == 0);
+    OI_ASSERT(buffer[42] == 0);
+    OI_ASSERT(buffer[50] == 0);
+    OI_ASSERT(buffer[58] == 0);
+    OI_ASSERT(buffer[66] == 0);
+    OI_ASSERT(buffer[74] == 0);
+
+
+    pa  = dec_window_4[ 4] * (buffer[12] + buffer[76]);
+    pa += dec_window_4[ 8] * (buffer[16] - buffer[64]);
+    pa += dec_window_4[12] * (buffer[28] + buffer[60]);
+    pa += dec_window_4[16] * (buffer[32] - buffer[48]);
+    pa += dec_window_4[20] *  buffer[44];
+    pa = SCALE(-pa, 15);
+    CLIP_INT16(pa);
+    pcm[0 << strideShift] = (OI_INT16)pa;
+
+
+    pa  = dec_window_4[ 1] * buffer[ 1]; pb  = dec_window_4[ 1] * buffer[79];
+    pb += dec_window_4[ 3] * buffer[ 3]; pa += dec_window_4[ 3] * buffer[77];
+    pa += dec_window_4[ 5] * buffer[13]; pb += dec_window_4[ 5] * buffer[67];
+    pb += dec_window_4[ 7] * buffer[15]; pa += dec_window_4[ 7] * buffer[65];
+    pa += dec_window_4[ 9] * buffer[17]; pb += dec_window_4[ 9] * buffer[63];
+    pb += dec_window_4[11] * buffer[19]; pa += dec_window_4[11] * buffer[61];
+    pa += dec_window_4[13] * buffer[29]; pb += dec_window_4[13] * buffer[51];
+    pb += dec_window_4[15] * buffer[31]; pa += dec_window_4[15] * buffer[49];
+    pa += dec_window_4[17] * buffer[33]; pb += dec_window_4[17] * buffer[47];
+    pb += dec_window_4[19] * buffer[35]; pa += dec_window_4[19] * buffer[45];
+    pa = SCALE(-pa, 15);
+    CLIP_INT16(pa);
+    pcm[1 << strideShift] = (OI_INT16)(pa);
+    pb = SCALE(-pb, 15);
+    CLIP_INT16(pb);
+    pcm[3 << strideShift] = (OI_INT16)(pb);
+
+
+    pa  = dec_window_4[2] * (/*buffer[ 2] + */ buffer[78]);  /* buffer[ 2] is always zero */
+    pa += dec_window_4[6] * (buffer[14] /* + buffer[66]*/);  /* buffer[66] is always zero */
+    pa += dec_window_4[10] * (/*buffer[18] + */ buffer[62]);  /* buffer[18] is always zero */
+    pa += dec_window_4[14] * (buffer[30] /* + buffer[50]*/);  /* buffer[50] is always zero */
+    pa += dec_window_4[18] * (/*buffer[34] + */ buffer[46]);  /* buffer[34] is always zero */
+    pa = SCALE(-pa, 15);
+    CLIP_INT16(pa);
+    pcm[2 << strideShift] = (OI_INT16)(pa);
+}
+
+
+/**
+  This routine implements the cosine modulation matrix for 4-subband
+  synthesis. This is called "matrixing" in the SBC specification. This
+  matrix, M4,  can be factored into an 8-point Type II Discrete Cosine
+  Transform, DCTII_4 and a matrix S4, given here:
+
+  @code
+        __               __
+       |   0   0   1   0   |
+       |   0   0   0   1   |
+       |   0   0   0   0   |
+       |   0   0   0  -1   |
+  S4 = |   0   0  -1   0   |
+       |   0  -1   0   0   |
+       |  -1   0   0   0   |
+       |__ 0  -1   0   0 __|
+
+  M4 * in = S4 * (DCTII_4 * in)
+  @endcode
+
+  (DCTII_4 * in) is computed using a Fast Cosine Transform. The algorithm
+  here is based on an implementation computed by the SPIRAL computer
+  algebra system, manually converted to fixed-point arithmetic. S4 can be
+  implemented using only assignment and negation.
+  */
+PRIVATE void cosineModulateSynth4(SBC_BUFFER_T * RESTRICT out, OI_INT32 const * RESTRICT in)
+{
+    OI_INT32 f0, f1, f2, f3, f4, f7, f8, f9, f10;
+    OI_INT32 y0, y1, y2, y3;
+
+    f0 = (in[0] - in[3]);
+    f1 = (in[0] + in[3]);
+    f2 = (in[1] - in[2]);
+    f3 = (in[1] + in[2]);
+
+    f4 = f1 - f3;
+
+    y0 = -SCALE(f1 + f3, DCT_SHIFT);
+    y2 = -SCALE(LONG_MULT_DCT(DCTII_4_K06_FIX, f4), DCT_SHIFT);
+    f7 = f0 + f2;
+    f8 = LONG_MULT_DCT(DCTII_4_K08_FIX, f0);
+    f9 = LONG_MULT_DCT(DCTII_4_K09_FIX, f7);
+    f10 = LONG_MULT_DCT(DCTII_4_K10_FIX, f2);
+    y3 = -SCALE(f8 + f9, DCT_SHIFT);
+    y1 = -SCALE(f10 - f9, DCT_SHIFT);
+
+    out[0] = (OI_INT16)-y2;
+    out[1] = (OI_INT16)-y3;
+    out[2] = (OI_INT16)0;
+    out[3] = (OI_INT16)y3;
+    out[4] = (OI_INT16)y2;
+    out[5] = (OI_INT16)y1;
+    out[6] = (OI_INT16)y0;
+    out[7] = (OI_INT16)y1;
+}
+
+
+
+/**
+@}
+*/
diff --git a/rtkbt/code/bt/embdrv/sbc/encoder/include/sbc_dct.h b/rtkbt/code/bt/embdrv/sbc/encoder/include/sbc_dct.h
new file mode 100755
index 0000000..245e65d
--- /dev/null
+++ b/rtkbt/code/bt/embdrv/sbc/encoder/include/sbc_dct.h
@@ -0,0 +1,91 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  Definitions for the fast DCT.
+ *
+ ******************************************************************************/
+
+#ifndef SBC_DCT_H
+#define SBC_DCT_H
+
+#if (SBC_ARM_ASM_OPT==TRUE)
+#define SBC_MULT_32_16_SIMPLIFIED(s16In2, s32In1, s32OutLow)					\
+{																			    \
+    __asm																		\
+{																				\
+    MUL s32OutLow,(SINT32)s16In2, (s32In1>>15)        \
+}																				\
+}
+#else
+#if (SBC_DSP_OPT==TRUE)
+#define SBC_MULT_32_16_SIMPLIFIED(s16In2, s32In1 , s32OutLow) s32OutLow = SBC_Multiply_32_16_Simplified((SINT32)s16In2,s32In1);
+#else
+#if (SBC_IPAQ_OPT==TRUE)
+/*#define SBC_MULT_32_16_SIMPLIFIED(s16In2, s32In1 , s32OutLow) s32OutLow=(SINT32)((SINT32)(s16In2)*(SINT32)(s32In1>>15)); */
+#define SBC_MULT_32_16_SIMPLIFIED(s16In2, s32In1 , s32OutLow) s32OutLow=(SINT32)(((SINT64)s16In2*(SINT64)s32In1)>>15);
+#if (SBC_IS_64_MULT_IN_IDCT == TRUE)
+#define SBC_MULT_32_32(s32In2, s32In1, s32OutLow)                           \
+{                                                                           \
+    s64Temp = ((SINT64) s32In2) * ((SINT64) s32In1)>>31;            \
+    s32OutLow = (SINT32) s64Temp;                                                    \
+}
+#endif
+#else
+#define SBC_MULT_32_16_SIMPLIFIED(s16In2, s32In1 , s32OutLow)                   \
+{                                                                               \
+    s32In1Temp = s32In1;                                                        \
+    s32In2Temp = (SINT32)s16In2;                                                \
+                                                                                \
+    /* Multiply one +ve and the other -ve number */                             \
+    if (s32In1Temp < 0)                                                         \
+    {                                                                           \
+        s32In1Temp ^= 0xFFFFFFFF;                                               \
+        s32In1Temp++;                                                           \
+        s32OutLow  = (s32In2Temp * (s32In1Temp >> 16));                         \
+        s32OutLow += (( s32In2Temp * (s32In1Temp & 0xFFFF)) >> 16);             \
+        s32OutLow ^= 0xFFFFFFFF;                                                \
+        s32OutLow++;                                                            \
+    }                                                                           \
+    else                                                                        \
+    {                                                                           \
+        s32OutLow  = (s32In2Temp * (s32In1Temp >> 16));                         \
+        s32OutLow += (( s32In2Temp * (s32In1Temp & 0xFFFF)) >> 16);             \
+    }                                                                           \
+    s32OutLow <<= 1;                                                            \
+}
+#if (SBC_IS_64_MULT_IN_IDCT == TRUE)
+#define SBC_MULT_64(s32In1, s32In2, s32OutLow, s32OutHi)  \
+{\
+        s32OutLow=(SINT32)(((SINT64)s32In1*(SINT64)s32In2)& 0x00000000FFFFFFFF);\
+        s32OutHi=(SINT32)(((SINT64)s32In1*(SINT64)s32In2)>>32);\
+}
+#define SBC_MULT_32_32(s32In2, s32In1, s32OutLow)                           \
+{                                                                           \
+    s32HiTemp = 0;                                                          \
+    SBC_MULT_64(s32In2,s32In1 , s32OutLow, s32HiTemp);                      \
+    s32OutLow   = (((s32OutLow>>15)&0x1FFFF) | (s32HiTemp << 17));          \
+}
+#endif
+
+#endif
+#endif
+#endif
+
+#endif
diff --git a/rtkbt/code/bt/embdrv/sbc/encoder/include/sbc_enc_func_declare.h b/rtkbt/code/bt/embdrv/sbc/encoder/include/sbc_enc_func_declare.h
new file mode 100755
index 0000000..2ac34ff
--- /dev/null
+++ b/rtkbt/code/bt/embdrv/sbc/encoder/include/sbc_enc_func_declare.h
@@ -0,0 +1,57 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  Function declarations.
+ *
+ ******************************************************************************/
+
+#ifndef SBC_FUNCDECLARE_H
+#define SBC_FUNCDECLARE_H
+
+/*#include "sbc_encoder.h"*/
+/* Global data */
+#if (SBC_IS_64_MULT_IN_WINDOW_ACCU == FALSE)
+extern const SINT16 gas32CoeffFor4SBs[];
+extern const SINT16 gas32CoeffFor8SBs[];
+#else
+extern const SINT32 gas32CoeffFor4SBs[];
+extern const SINT32 gas32CoeffFor8SBs[];
+#endif
+
+/* Global functions*/
+
+extern void sbc_enc_bit_alloc_mono(SBC_ENC_PARAMS *CodecParams);
+extern void sbc_enc_bit_alloc_ste(SBC_ENC_PARAMS *CodecParams);
+
+extern void SbcAnalysisInit (void);
+
+extern void SbcAnalysisFilter4(SBC_ENC_PARAMS *strEncParams);
+extern void SbcAnalysisFilter8(SBC_ENC_PARAMS *strEncParams);
+
+extern void SBC_FastIDCT8 (SINT32 *pInVect, SINT32 *pOutVect);
+extern void SBC_FastIDCT4 (SINT32 *x0, SINT32 *pOutVect);
+
+extern void EncPacking(SBC_ENC_PARAMS *strEncParams);
+extern void EncQuantizer(SBC_ENC_PARAMS *);
+#if (SBC_DSP_OPT==TRUE)
+    SINT32 SBC_Multiply_32_16_Simplified(SINT32 s32In2Temp,SINT32 s32In1Temp);
+#endif
+#endif
+
diff --git a/rtkbt/code/bt/embdrv/sbc/encoder/include/sbc_encoder.h b/rtkbt/code/bt/embdrv/sbc/encoder/include/sbc_encoder.h
new file mode 100755
index 0000000..a1c963f
--- /dev/null
+++ b/rtkbt/code/bt/embdrv/sbc/encoder/include/sbc_encoder.h
@@ -0,0 +1,202 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains constants and structures used by Encoder.
+ *
+ ******************************************************************************/
+
+#ifndef SBC_ENCODER_H
+#define SBC_ENCODER_H
+
+#define ENCODER_VERSION "0025"
+
+#ifdef BUILDCFG
+    #include "bt_target.h"
+#endif
+
+/*DEFINES*/
+#ifndef FALSE
+#define FALSE 0
+#endif
+
+#ifndef TRUE
+#define TRUE (!FALSE)
+#endif
+
+#define SBC_MAX_NUM_OF_SUBBANDS 8
+#define SBC_MAX_NUM_OF_CHANNELS 2
+#define SBC_MAX_NUM_OF_BLOCKS   16
+
+#define SBC_LOUDNESS    0
+#define SBC_SNR 1
+
+#define SUB_BANDS_8 8
+#define SUB_BANDS_4 4
+
+#define SBC_sf16000 0
+#define SBC_sf32000 1
+#define SBC_sf44100 2
+#define SBC_sf48000 3
+
+#define SBC_MONO    0
+#define SBC_DUAL    1
+#define SBC_STEREO  2
+#define SBC_JOINT_STEREO    3
+
+#define SBC_BLOCK_0 4
+#define SBC_BLOCK_1 8
+#define SBC_BLOCK_2 12
+#define SBC_BLOCK_3 16
+
+#define SBC_NULL    0
+
+#ifndef SBC_MAX_NUM_FRAME
+#define SBC_MAX_NUM_FRAME 1
+#endif
+
+#ifndef SBC_DSP_OPT
+#define SBC_DSP_OPT FALSE
+#endif
+
+/* Set SBC_USE_ARM_PRAGMA to TRUE to use "#pragma arm section zidata" */
+#ifndef SBC_USE_ARM_PRAGMA
+#define SBC_USE_ARM_PRAGMA FALSE
+#endif
+
+/* Set SBC_ARM_ASM_OPT to TRUE in case the target is an ARM */
+/* this will replace all the 32 and 64 bit mult by in line assembly code */
+#ifndef SBC_ARM_ASM_OPT
+#define SBC_ARM_ASM_OPT FALSE
+#endif
+
+/* green hill compiler option -> Used to distinguish the syntax for inline assembly code*/
+#ifndef SBC_GHS_COMPILER
+#define SBC_GHS_COMPILER FALSE
+#endif
+
+/* ARM compiler option -> Used to distinguish the syntax for inline assembly code */
+#ifndef SBC_ARM_COMPILER
+#define SBC_ARM_COMPILER TRUE
+#endif
+
+/* Set SBC_IPAQ_OPT to TRUE in case the target is an ARM */
+/* 32 and 64 bit mult will be performed using SINT64 ( usualy __int64 ) cast that usualy give optimal performance if supported */
+#ifndef SBC_IPAQ_OPT
+#define SBC_IPAQ_OPT TRUE
+#endif
+
+/* Debug only: set SBC_IS_64_MULT_IN_WINDOW_ACCU to TRUE to use 64 bit multiplication in the windowing */
+/* -> not recomended, more MIPS for the same restitution.  */
+#ifndef SBC_IS_64_MULT_IN_WINDOW_ACCU
+#define SBC_IS_64_MULT_IN_WINDOW_ACCU  FALSE
+#endif /*SBC_IS_64_MULT_IN_WINDOW_ACCU */
+
+/* Set SBC_IS_64_MULT_IN_IDCT to TRUE to use 64 bits multiplication in the DCT of Matrixing */
+/* -> more MIPS required for a better audio quality. comparasion with the SIG utilities shows a division by 10 of the RMS */
+/* CAUTION: It only apply in the if SBC_FAST_DCT is set to TRUE */
+#ifndef SBC_IS_64_MULT_IN_IDCT
+#define SBC_IS_64_MULT_IN_IDCT  FALSE
+#endif /*SBC_IS_64_MULT_IN_IDCT */
+
+/* set SBC_IS_64_MULT_IN_QUANTIZER to TRUE to use 64 bits multiplication in the quantizer */
+/* setting this flag to FALSE add whistling noise at 5.5 and 11 KHz usualy not perceptible by human's hears. */
+#ifndef SBC_IS_64_MULT_IN_QUANTIZER
+#define SBC_IS_64_MULT_IN_QUANTIZER  TRUE
+#endif /*SBC_IS_64_MULT_IN_IDCT */
+
+/* Debug only: set this flag to FALSE to disable fast DCT algorithm */
+#ifndef SBC_FAST_DCT
+#define SBC_FAST_DCT  TRUE
+#endif /*SBC_FAST_DCT */
+
+/* In case we do not use joint stereo mode the flag save some RAM and ROM in case it is set to FALSE */
+#ifndef SBC_JOINT_STE_INCLUDED
+#define SBC_JOINT_STE_INCLUDED TRUE
+#endif
+
+/* TRUE -> application should provide PCM buffer, FALSE PCM buffer reside in SBC_ENC_PARAMS */
+#ifndef SBC_NO_PCM_CPY_OPTION
+#define SBC_NO_PCM_CPY_OPTION FALSE
+#endif
+
+#define MINIMUM_ENC_VX_BUFFER_SIZE (8*10*2)
+#ifndef ENC_VX_BUFFER_SIZE
+#define ENC_VX_BUFFER_SIZE (MINIMUM_ENC_VX_BUFFER_SIZE + 64)
+/*#define ENC_VX_BUFFER_SIZE MINIMUM_ENC_VX_BUFFER_SIZE + 1024*/
+#endif
+
+#ifndef SBC_FOR_EMBEDDED_LINUX
+#define SBC_FOR_EMBEDDED_LINUX FALSE
+#endif
+
+/*constants used for index calculation*/
+#define SBC_BLK (SBC_MAX_NUM_OF_CHANNELS * SBC_MAX_NUM_OF_SUBBANDS)
+
+#include "sbc_types.h"
+
+typedef struct SBC_ENC_PARAMS_TAG
+{
+    SINT16 s16SamplingFreq;                         /* 16k, 32k, 44.1k or 48k*/
+    SINT16 s16ChannelMode;                          /* mono, dual, streo or joint streo*/
+    SINT16 s16NumOfSubBands;                        /* 4 or 8 */
+    SINT16 s16NumOfChannels;
+    SINT16 s16NumOfBlocks;                          /* 4, 8, 12 or 16*/
+    SINT16 s16AllocationMethod;                     /* loudness or SNR*/
+    SINT16 s16BitPool;                              /* 16*numOfSb for mono & dual;
+                                                       32*numOfSb for stereo & joint stereo */
+    UINT16 u16BitRate;
+    UINT8   u8NumPacketToEncode;                    /* number of sbc frame to encode. Default is 1 */
+#if (SBC_JOINT_STE_INCLUDED == TRUE)
+    SINT16 as16Join[SBC_MAX_NUM_OF_SUBBANDS];       /*1 if JS, 0 otherwise*/
+#endif
+
+    SINT16 s16MaxBitNeed;
+    SINT16 as16ScaleFactor[SBC_MAX_NUM_OF_CHANNELS*SBC_MAX_NUM_OF_SUBBANDS];
+
+    SINT16 *ps16NextPcmBuffer;
+#if (SBC_NO_PCM_CPY_OPTION == TRUE)
+    SINT16 *ps16PcmBuffer;
+#else
+    SINT16 as16PcmBuffer[SBC_MAX_NUM_FRAME*SBC_MAX_NUM_OF_BLOCKS * SBC_MAX_NUM_OF_CHANNELS * SBC_MAX_NUM_OF_SUBBANDS];
+#endif
+
+    SINT16  s16ScartchMemForBitAlloc[16];
+
+    SINT32  s32SbBuffer[SBC_MAX_NUM_OF_CHANNELS * SBC_MAX_NUM_OF_SUBBANDS * SBC_MAX_NUM_OF_BLOCKS];
+
+    SINT16 as16Bits[SBC_MAX_NUM_OF_CHANNELS*SBC_MAX_NUM_OF_SUBBANDS];
+
+    UINT8  *pu8Packet;
+    UINT8  *pu8NextPacket;
+    UINT16 FrameHeader;
+    UINT16 u16PacketLength;
+
+}SBC_ENC_PARAMS;
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+extern void SBC_Encoder(SBC_ENC_PARAMS *strEncParams);
+extern void SBC_Encoder_Init(SBC_ENC_PARAMS *strEncParams);
+#ifdef __cplusplus
+}
+#endif
+#endif
diff --git a/rtkbt/code/bt/embdrv/sbc/encoder/include/sbc_if.h b/rtkbt/code/bt/embdrv/sbc/encoder/include/sbc_if.h
new file mode 100755
index 0000000..de8dd48
--- /dev/null
+++ b/rtkbt/code/bt/embdrv/sbc/encoder/include/sbc_if.h
@@ -0,0 +1,47 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#ifndef _SBC_IF_H
+#define _SBC_IF_H
+
+#define PCM_BUFFER_SIZE 512
+
+/*
+ SBC_Init - called once for each track played
+
+ pcm_sample_freq - 4000 to 48000
+ channels - 1 mono 2 stereo
+ bits_per_sample - 8 or 16
+ return - 0 sucess
+*/
+
+int SBC_init(int pcm_sample_freq, int channels, int bits_per_sample);
+
+/*
+ SBC_write - called repeatedly with pcm_in pointer
+	increasing by length until track is finished.
+
+ pcm_in - pointer to PCM buffer
+ length - any
+ sbc_out - pointer to SBC output buffer
+ return - number of bytes written to sbc_out
+*/
+
+int SBC_write(unsigned char *pcm_in, int length, unsigned char *sbc_out);
+
+#endif
diff --git a/rtkbt/code/bt/embdrv/sbc/encoder/include/sbc_types.h b/rtkbt/code/bt/embdrv/sbc/encoder/include/sbc_types.h
new file mode 100755
index 0000000..4bb8829
--- /dev/null
+++ b/rtkbt/code/bt/embdrv/sbc/encoder/include/sbc_types.h
@@ -0,0 +1,59 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  Data type declarations.
+ *
+ ******************************************************************************/
+
+#ifndef SBC_TYPES_H
+#define SBC_TYPES_H
+
+#include <stdint.h>
+
+#ifdef BUILDCFG
+#include "bt_target.h"
+#endif
+
+#include "bt_types.h"
+
+typedef short SINT16;
+typedef long SINT32;
+
+#if (SBC_IPAQ_OPT == TRUE)
+
+#if (SBC_FOR_EMBEDDED_LINUX == TRUE)
+typedef long long SINT64;
+#else
+typedef int64_t SINT64;
+#endif
+
+#elif (SBC_IS_64_MULT_IN_WINDOW_ACCU == TRUE) || (SBC_IS_64_MULT_IN_IDCT == TRUE)
+
+#if (SBC_FOR_EMBEDDED_LINUX == TRUE)
+typedef long long SINT64;
+#else
+typedef int64_t SINT64;
+#endif
+
+#endif
+
+#define abs32(x) ( (x >= 0) ? x : (-x) )
+
+#endif
diff --git a/rtkbt/code/bt/embdrv/sbc/encoder/srce/sbc_analysis.c b/rtkbt/code/bt/embdrv/sbc/encoder/srce/sbc_analysis.c
new file mode 100755
index 0000000..95079fa
--- /dev/null
+++ b/rtkbt/code/bt/embdrv/sbc/encoder/srce/sbc_analysis.c
@@ -0,0 +1,1107 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains the code that performs Analysis of the input audio
+ *  stream.
+ *
+ ******************************************************************************/
+#include <string.h>
+#include "sbc_encoder.h"
+#include "sbc_enc_func_declare.h"
+/*#include <math.h>*/
+
+#if (SBC_IS_64_MULT_IN_WINDOW_ACCU == TRUE)
+#define WIND_4_SUBBANDS_0_1 (SINT32)0x01659F45  /* gas32CoeffFor4SBs[8] = -gas32CoeffFor4SBs[32] = 0x01659F45 */
+#define WIND_4_SUBBANDS_0_2 (SINT32)0x115B1ED2  /* gas32CoeffFor4SBs[16] = -gas32CoeffFor4SBs[24] = 0x115B1ED2 */
+#define WIND_4_SUBBANDS_1_0 (SINT32)0x001194E6  /* gas32CoeffFor4SBs[1 et 39] = 0x001194E6 */
+#define WIND_4_SUBBANDS_1_1 (SINT32)0x029DBAA3  /* gas32CoeffFor4SBs[9 et 31] = 0x029DBAA3 */
+#define WIND_4_SUBBANDS_1_2 (SINT32)0x18F55C90  /* gas32CoeffFor4SBs[17 et 23] = 0x18F55C90 */
+#define WIND_4_SUBBANDS_1_3 (SINT32)0xF60FAF37  /* gas32CoeffFor4SBs[15 et 25] = 0xF60FAF37 */
+#define WIND_4_SUBBANDS_1_4 (SINT32)0xFF9BB9D5  /* gas32CoeffFor4SBs[7 et 33] = 0xFF9BB9D5 */
+#define WIND_4_SUBBANDS_2_0 (SINT32)0x0030E2D3  /* gas32CoeffFor4SBs[2 et 38] = 0x0030E2D3 */
+#define WIND_4_SUBBANDS_2_1 (SINT32)0x03B23341  /* gas32CoeffFor4SBs[10 et 30] = 0x03B23341 */
+#define WIND_4_SUBBANDS_2_2 (SINT32)0x1F91CA46  /* gas32CoeffFor4SBs[18 et 22] = 0x1F91CA46 */
+#define WIND_4_SUBBANDS_2_3 (SINT32)0xFC4F91D4  /* gas32CoeffFor4SBs[14 et 26] = 0xFC4F91D4 */
+#define WIND_4_SUBBANDS_2_4 (SINT32)0x003D239B  /* gas32CoeffFor4SBs[6 et 34] = 0x003D239B */
+#define WIND_4_SUBBANDS_3_0 (SINT32)0x00599403  /* gas32CoeffFor4SBs[3 et 37] = 0x00599403 */
+#define WIND_4_SUBBANDS_3_1 (SINT32)0x041EEE40  /* gas32CoeffFor4SBs[11 et 29] = 0x041EEE40 */
+#define WIND_4_SUBBANDS_3_2 (SINT32)0x2412F251  /* gas32CoeffFor4SBs[19 et 21] = 0x2412F251 */
+#define WIND_4_SUBBANDS_3_3 (SINT32)0x00C8F2BC  /* gas32CoeffFor4SBs[13 et 27] = 0x00C8F2BC */
+#define WIND_4_SUBBANDS_3_4 (SINT32)0x007F88E4  /* gas32CoeffFor4SBs[5 et 35] = 0x007F88E4 */
+#define WIND_4_SUBBANDS_4_0 (SINT32)0x007DBCC8  /* gas32CoeffFor4SBs[4 et 36] = 0x007DBCC8 */
+#define WIND_4_SUBBANDS_4_1 (SINT32)0x034FEE2C  /* gas32CoeffFor4SBs[12 et 28] = 0x034FEE2C */
+#define WIND_4_SUBBANDS_4_2 (SINT32)0x25AC1FF2  /* gas32CoeffFor4SBs[20] = 0x25AC1FF2 */
+
+#define WIND_8_SUBBANDS_0_1 (SINT32)0x00B97348  /* 16 0x00B97348 */
+#define WIND_8_SUBBANDS_0_2 (SINT32)0x08B4307A  /* 32 0x08B4307A */
+#define WIND_8_SUBBANDS_1_0 (SINT32)0x00052173  /* 1 et 79 = 0x00052173 */
+#define WIND_8_SUBBANDS_1_1 (SINT32)0x01071B96  /* 17 et 63 = 0x01071B96 */
+#define WIND_8_SUBBANDS_1_2 (SINT32)0x0A9F3E9A  /* 33 et 47 = 0x0A9F3E9A*/
+#define WIND_8_SUBBANDS_1_3 (SINT32)0xF9312891  /* 31 et 49 = 0xF9312891 */
+#define WIND_8_SUBBANDS_1_4 (SINT32)0xFF8D6793  /* 15 et 65 = 0xFF8D6793 */
+#define WIND_8_SUBBANDS_2_0 (SINT32)0x000B3F71  /* 2 et 78 = 0x000B3F71 */
+#define WIND_8_SUBBANDS_2_1 (SINT32)0x0156B3CA  /* 18 et 62 = 0x0156B3CA */
+#define WIND_8_SUBBANDS_2_2 (SINT32)0x0C7D59B6  /* 34 et 46 = 0x0C7D59B6 */
+#define WIND_8_SUBBANDS_2_3 (SINT32)0xFAFF95FC  /* 30 et 50 = 0xFAFF95FC */
+#define WIND_8_SUBBANDS_2_4 (SINT32)0xFFC9F10E  /* 14 et 66 = 0xFFC9F10E */
+#define WIND_8_SUBBANDS_3_0 (SINT32)0x00122C7D  /* 3 et 77 = 0x00122C7D*/
+#define WIND_8_SUBBANDS_3_1 (SINT32)0x01A1B38B  /* 19 et 61 = 0x01A1B38B */
+#define WIND_8_SUBBANDS_3_2 (SINT32)0x0E3BB16F  /* 35 et 45 = 0x0E3BB16F */
+#define WIND_8_SUBBANDS_3_3 (SINT32)0xFCA86E7E  /* 29 et 51 = 0xFCA86E7E */
+#define WIND_8_SUBBANDS_3_4 (SINT32)0xFFFA2413  /* 13 et 67 = 0xFFFA2413 */
+#define WIND_8_SUBBANDS_4_0 (SINT32)0x001AFF89  /* 4 et 66 = 0x001AFF89 */
+#define WIND_8_SUBBANDS_4_1 (SINT32)0x01E0224C  /* 20 et 60 = 0x01E0224C */
+#define WIND_8_SUBBANDS_4_2 (SINT32)0x0FC721F9  /* 36 et 44 = 0x0FC721F9 */
+#define WIND_8_SUBBANDS_4_3 (SINT32)0xFE20435D  /* 28 et 52 = 0xFE20435D */
+#define WIND_8_SUBBANDS_4_4 (SINT32)0x001D8FD2  /* 12 et 68 = 0x001D8FD2 */
+#define WIND_8_SUBBANDS_5_0 (SINT32)0x00255A62  /* 5 et 75 = 0x00255A62 */
+#define WIND_8_SUBBANDS_5_1 (SINT32)0x0209291F  /* 21 et 59 = 0x0209291F */
+#define WIND_8_SUBBANDS_5_2 (SINT32)0x110ECEF0  /* 37 et 43 = 0x110ECEF0 */
+#define WIND_8_SUBBANDS_5_3 (SINT32)0xFF5EEB73  /* 27 et  53 = 0xFF5EEB73 */
+#define WIND_8_SUBBANDS_5_4 (SINT32)0x0034F8B6  /* 11 et 69 = 0x0034F8B6 */
+#define WIND_8_SUBBANDS_6_0 (SINT32)0x003060F4  /* 6 et 74 = 0x003060F4 */
+#define WIND_8_SUBBANDS_6_1 (SINT32)0x02138653  /* 22 et 58 = 0x02138653 */
+#define WIND_8_SUBBANDS_6_2 (SINT32)0x120435FA  /* 38 et 42 = 0x120435FA */
+#define WIND_8_SUBBANDS_6_3 (SINT32)0x005FD0FF  /* 26 et 54 = 0x005FD0FF */
+#define WIND_8_SUBBANDS_6_4 (SINT32)0x00415B75  /* 10 et 70 = 0x00415B75 */
+#define WIND_8_SUBBANDS_7_0 (SINT32)0x003A72E7  /* 7 et 73 = 0x003A72E7 */
+#define WIND_8_SUBBANDS_7_1 (SINT32)0x01F5F424  /* 23 et 57 = 0x01F5F424 */
+#define WIND_8_SUBBANDS_7_2 (SINT32)0x129C226F  /* 39 et 41 = 0x129C226F */
+#define WIND_8_SUBBANDS_7_3 (SINT32)0x01223EBA  /* 25 et 55 = 0x01223EBA */
+#define WIND_8_SUBBANDS_7_4 (SINT32)0x0044EF48  /* 9 et 71 = 0x0044EF48 */
+#define WIND_8_SUBBANDS_8_0 (SINT32)0x0041EC6A  /* 8 et 72 = 0x0041EC6A */
+#define WIND_8_SUBBANDS_8_1 (SINT32)0x01A7ECEF  /* 24 et 56 = 0x01A7ECEF */
+#define WIND_8_SUBBANDS_8_2 (SINT32)0x12CF6C75  /* 40 = 0x12CF6C75 */
+#else
+#define WIND_4_SUBBANDS_0_1 (SINT16)0x0166  /* gas32CoeffFor4SBs[8] = -gas32CoeffFor4SBs[32] = 0x01659F45 */
+#define WIND_4_SUBBANDS_0_2 (SINT16)0x115B  /* gas32CoeffFor4SBs[16] = -gas32CoeffFor4SBs[24] = 0x115B1ED2 */
+#define WIND_4_SUBBANDS_1_0 (SINT16)0x0012  /* gas32CoeffFor4SBs[1 et 39] = 0x001194E6 */
+#define WIND_4_SUBBANDS_1_1 (SINT16)0x029E  /* gas32CoeffFor4SBs[9 et 31] = 0x029DBAA3 */
+#define WIND_4_SUBBANDS_1_2 (SINT16)0x18F5  /* gas32CoeffFor4SBs[17 et 23] = 0x18F55C90 */
+#define WIND_4_SUBBANDS_1_3 (SINT16)0xF610  /* gas32CoeffFor4SBs[15 et 25] = 0xF60FAF37 */
+#define WIND_4_SUBBANDS_1_4 (SINT16)0xFF9C  /* gas32CoeffFor4SBs[7 et 33] = 0xFF9BB9D5 */
+#define WIND_4_SUBBANDS_2_0 (SINT16)0x0031  /* gas32CoeffFor4SBs[2 et 38] = 0x0030E2D3 */
+#define WIND_4_SUBBANDS_2_1 (SINT16)0x03B2  /* gas32CoeffFor4SBs[10 et 30] = 0x03B23341 */
+#define WIND_4_SUBBANDS_2_2 (SINT16)0x1F91  /* gas32CoeffFor4SBs[18 et 22] = 0x1F91CA46 */
+#define WIND_4_SUBBANDS_2_3 (SINT16)0xFC50  /* gas32CoeffFor4SBs[14 et 26] = 0xFC4F91D4 */
+#define WIND_4_SUBBANDS_2_4 (SINT16)0x003D  /* gas32CoeffFor4SBs[6 et 34] = 0x003D239B */
+#define WIND_4_SUBBANDS_3_0 (SINT16)0x005A  /* gas32CoeffFor4SBs[3 et 37] = 0x00599403 */
+#define WIND_4_SUBBANDS_3_1 (SINT16)0x041F  /* gas32CoeffFor4SBs[11 et 29] = 0x041EEE40 */
+#define WIND_4_SUBBANDS_3_2 (SINT16)0x2413  /* gas32CoeffFor4SBs[19 et 21] = 0x2412F251 */
+#define WIND_4_SUBBANDS_3_3 (SINT16)0x00C9  /* gas32CoeffFor4SBs[13 et 27] = 0x00C8F2BC */
+#define WIND_4_SUBBANDS_3_4 (SINT16)0x0080  /* gas32CoeffFor4SBs[5 et 35] = 0x007F88E4 */
+#define WIND_4_SUBBANDS_4_0 (SINT16)0x007E  /* gas32CoeffFor4SBs[4 et 36] = 0x007DBCC8 */
+#define WIND_4_SUBBANDS_4_1 (SINT16)0x0350  /* gas32CoeffFor4SBs[12 et 28] = 0x034FEE2C */
+#define WIND_4_SUBBANDS_4_2 (SINT16)0x25AC  /* gas32CoeffFor4SBs[20] = 25AC1FF2 */
+
+#define WIND_8_SUBBANDS_0_1 (SINT16)0x00B9  /* 16 0x12CF6C75 */
+#define WIND_8_SUBBANDS_0_2 (SINT16)0x08B4  /* 32 0x08B4307A */
+#define WIND_8_SUBBANDS_1_0 (SINT16)0x0005  /* 1 et 79 = 0x00052173 */
+#define WIND_8_SUBBANDS_1_1 (SINT16)0x0107  /* 17 et 63 = 0x01071B96 */
+#define WIND_8_SUBBANDS_1_2 (SINT16)0x0A9F  /* 33 et 47 = 0x0A9F3E9A*/
+#define WIND_8_SUBBANDS_1_3 (SINT16)0xF931  /* 31 et 49 = 0xF9312891 */
+#define WIND_8_SUBBANDS_1_4 (SINT16)0xFF8D  /* 15 et 65 = 0xFF8D6793 */
+#define WIND_8_SUBBANDS_2_0 (SINT16)0x000B  /* 2 et 78 = 0x000B3F71 */
+#define WIND_8_SUBBANDS_2_1 (SINT16)0x0157  /* 18 et 62 = 0x0156B3CA */
+#define WIND_8_SUBBANDS_2_2 (SINT16)0x0C7D  /* 34 et 46 = 0x0C7D59B6 */
+#define WIND_8_SUBBANDS_2_3 (SINT16)0xFB00  /* 30 et 50 = 0xFAFF95FC */
+#define WIND_8_SUBBANDS_2_4 (SINT16)0xFFCA  /* 14 et 66 = 0xFFC9F10E */
+#define WIND_8_SUBBANDS_3_0 (SINT16)0x0012  /* 3 et 77 = 0x00122C7D*/
+#define WIND_8_SUBBANDS_3_1 (SINT16)0x01A2  /* 19 et 61 = 0x01A1B38B */
+#define WIND_8_SUBBANDS_3_2 (SINT16)0x0E3C  /* 35 et 45 = 0x0E3BB16F */
+#define WIND_8_SUBBANDS_3_3 (SINT16)0xFCA8  /* 29 et 51 = 0xFCA86E7E */
+#define WIND_8_SUBBANDS_3_4 (SINT16)0xFFFA  /* 13 et 67 = 0xFFFA2413 */
+#define WIND_8_SUBBANDS_4_0 (SINT16)0x001B  /* 4 et 66 = 0x001AFF89 */
+#define WIND_8_SUBBANDS_4_1 (SINT16)0x01E0  /* 20 et 60 = 0x01E0224C */
+#define WIND_8_SUBBANDS_4_2 (SINT16)0x0FC7  /* 36 et 44 = 0x0FC721F9 */
+#define WIND_8_SUBBANDS_4_3 (SINT16)0xFE20  /* 28 et 52 = 0xFE20435D */
+#define WIND_8_SUBBANDS_4_4 (SINT16)0x001E  /* 12 et 68 = 0x001D8FD2 */
+#define WIND_8_SUBBANDS_5_0 (SINT16)0x0025  /* 5 et 75 = 0x00255A62 */
+#define WIND_8_SUBBANDS_5_1 (SINT16)0x0209  /* 21 et 59 = 0x0209291F */
+#define WIND_8_SUBBANDS_5_2 (SINT16)0x110F  /* 37 et 43 = 0x110ECEF0 */
+#define WIND_8_SUBBANDS_5_3 (SINT16)0xFF5F  /* 27 et  53 = 0xFF5EEB73 */
+#define WIND_8_SUBBANDS_5_4 (SINT16)0x0035  /* 11 et 69 = 0x0034F8B6 */
+#define WIND_8_SUBBANDS_6_0 (SINT16)0x0030  /* 6 et 74 = 0x003060F4 */
+#define WIND_8_SUBBANDS_6_1 (SINT16)0x0214  /* 22 et 58 = 0x02138653 */
+#define WIND_8_SUBBANDS_6_2 (SINT16)0x1204  /* 38 et 42 = 0x120435FA */
+#define WIND_8_SUBBANDS_6_3 (SINT16)0x0060  /* 26 et 54 = 0x005FD0FF */
+#define WIND_8_SUBBANDS_6_4 (SINT16)0x0041  /* 10 et 70 = 0x00415B75 */
+#define WIND_8_SUBBANDS_7_0 (SINT16)0x003A  /* 7 et 73 = 0x003A72E7 */
+#define WIND_8_SUBBANDS_7_1 (SINT16)0x01F6  /* 23 et 57 = 0x01F5F424 */
+#define WIND_8_SUBBANDS_7_2 (SINT16)0x129C  /* 39 et 41 = 0x129C226F */
+#define WIND_8_SUBBANDS_7_3 (SINT16)0x0122  /* 25 et 55 = 0x01223EBA */
+#define WIND_8_SUBBANDS_7_4 (SINT16)0x0045  /* 9 et 71 = 0x0044EF48 */
+#define WIND_8_SUBBANDS_8_0 (SINT16)0x0042  /* 8 et 72 = 0x0041EC6A */
+#define WIND_8_SUBBANDS_8_1 (SINT16)0x01A8  /* 24 et 56 = 0x01A7ECEF */
+#define WIND_8_SUBBANDS_8_2 (SINT16)0x12CF  /* 40 = 0x12CF6C75 */
+#endif
+
+#if (SBC_USE_ARM_PRAGMA==TRUE)
+#pragma arm section zidata = "sbc_s32_analysis_section"
+#endif
+static SINT32   s32DCTY[16]  = {0};
+static SINT32   s32X[ENC_VX_BUFFER_SIZE/2];
+static SINT16   *s16X=(SINT16*) s32X;      /* s16X must be 32 bits aligned cf  SHIFTUP_X8_2*/
+#if (SBC_USE_ARM_PRAGMA==TRUE)
+#pragma arm section zidata
+#endif
+
+/* This macro is for 4 subbands */
+#define SHIFTUP_X4                                                               \
+{                                                                                   \
+    ps32X=(SINT32 *)(s16X+EncMaxShiftCounter+38);                                 \
+    for (i=0;i<9;i++)                                                               \
+    {                                                                               \
+        *ps32X=*(ps32X-2-(ShiftCounter>>1));  ps32X--;                                 \
+        *ps32X=*(ps32X-2-(ShiftCounter>>1));  ps32X--;                                 \
+    }                                                                               \
+}
+#define SHIFTUP_X4_2                                                              \
+{                                                                                   \
+    ps32X=(SINT32 *)(s16X+EncMaxShiftCounter+38);                                   \
+    ps32X2=(SINT32 *)(s16X+(EncMaxShiftCounter<<1)+78);                             \
+    for (i=0;i<9;i++)                                                               \
+    {                                                                               \
+        *ps32X=*(ps32X-2-(ShiftCounter>>1));  *(ps32X2)=*(ps32X2-2-(ShiftCounter>>1)); ps32X--;  ps32X2--;                     \
+        *ps32X=*(ps32X-2-(ShiftCounter>>1));  *(ps32X2)=*(ps32X2-2-(ShiftCounter>>1)); ps32X--;  ps32X2--;                     \
+    }                                                                               \
+}
+
+/* This macro is for 8 subbands */
+#define SHIFTUP_X8                                                               \
+{                                                                                   \
+    ps32X=(SINT32 *)(s16X+EncMaxShiftCounter+78);                                 \
+    for (i=0;i<9;i++)                                                               \
+    {                                                                               \
+        *ps32X=*(ps32X-4-(ShiftCounter>>1));  ps32X--;                                 \
+        *ps32X=*(ps32X-4-(ShiftCounter>>1));  ps32X--;                                 \
+        *ps32X=*(ps32X-4-(ShiftCounter>>1));  ps32X--;                                 \
+        *ps32X=*(ps32X-4-(ShiftCounter>>1));  ps32X--;                                 \
+    }                                                                               \
+}
+#define SHIFTUP_X8_2                                                               \
+{                                                                                   \
+    ps32X=(SINT32 *)(s16X+EncMaxShiftCounter+78);                                   \
+    ps32X2=(SINT32 *)(s16X+(EncMaxShiftCounter<<1)+158);                             \
+    for (i=0;i<9;i++)                                                               \
+    {                                                                               \
+        *ps32X=*(ps32X-4-(ShiftCounter>>1));  *(ps32X2)=*(ps32X2-4-(ShiftCounter>>1)); ps32X--;  ps32X2--;                     \
+        *ps32X=*(ps32X-4-(ShiftCounter>>1));  *(ps32X2)=*(ps32X2-4-(ShiftCounter>>1)); ps32X--;  ps32X2--;                     \
+        *ps32X=*(ps32X-4-(ShiftCounter>>1));  *(ps32X2)=*(ps32X2-4-(ShiftCounter>>1)); ps32X--;  ps32X2--;                     \
+        *ps32X=*(ps32X-4-(ShiftCounter>>1));  *(ps32X2)=*(ps32X2-4-(ShiftCounter>>1)); ps32X--;  ps32X2--;                     \
+    }                                                                               \
+}
+
+#if (SBC_ARM_ASM_OPT==TRUE)
+#define WINDOW_ACCU_8_0 \
+{\
+    __asm\
+    {\
+        MUL s32Hi,WIND_8_SUBBANDS_0_1,(s16X[ChOffset+16]-s16X[ChOffset+64]);\
+        MLA s32Hi,WIND_8_SUBBANDS_0_2,(s16X[ChOffset+32]-s16X[ChOffset+48]),s32Hi;\
+        MOV s32DCTY[0],s32Hi;\
+    }\
+}
+#define WINDOW_ACCU_8_1_15 \
+{\
+    __asm\
+    {\
+        MUL s32Hi,WIND_8_SUBBANDS_1_0,s16X[ChOffset+1];\
+        MUL s32Hi2,WIND_8_SUBBANDS_1_0,s16X[ChOffset+64+15];\
+        MLA s32Hi,WIND_8_SUBBANDS_1_1,s16X[ChOffset+16+1],s32Hi;\
+        MLA s32Hi2,WIND_8_SUBBANDS_1_1,s16X[ChOffset+48+15],s32Hi2;\
+        MLA s32Hi,WIND_8_SUBBANDS_1_2,s16X[ChOffset+32+1],s32Hi;\
+        MLA s32Hi2,WIND_8_SUBBANDS_1_2,s16X[ChOffset+32+15],s32Hi2;\
+        MLA s32Hi,WIND_8_SUBBANDS_1_3,s16X[ChOffset+48+1],s32Hi;\
+        MLA s32Hi2,WIND_8_SUBBANDS_1_3,s16X[ChOffset+16+15],s32Hi2;\
+        MLA s32Hi,WIND_8_SUBBANDS_1_4,s16X[ChOffset+64+1],s32Hi;\
+        MLA s32Hi2,WIND_8_SUBBANDS_1_4,s16X[ChOffset+15],s32Hi2;\
+        MOV s32DCTY[1],s32Hi;\
+        MOV s32DCTY[15],s32Hi2;\
+    }\
+}
+#define WINDOW_ACCU_8_2_14 \
+{\
+    __asm\
+    {\
+        MUL s32Hi,WIND_8_SUBBANDS_2_0,s16X[ChOffset+2];\
+        MUL s32Hi2,WIND_8_SUBBANDS_2_0,s16X[ChOffset+64+14];\
+        MLA s32Hi,WIND_8_SUBBANDS_2_1,s16X[ChOffset+16+2],s32Hi;\
+        MLA s32Hi2,WIND_8_SUBBANDS_2_1,s16X[ChOffset+48+14],s32Hi2;\
+        MLA s32Hi,WIND_8_SUBBANDS_2_2,s16X[ChOffset+32+2],s32Hi;\
+        MLA s32Hi2,WIND_8_SUBBANDS_2_2,s16X[ChOffset+32+14],s32Hi2;\
+        MLA s32Hi,WIND_8_SUBBANDS_2_3,s16X[ChOffset+48+2],s32Hi;\
+        MLA s32Hi2,WIND_8_SUBBANDS_2_3,s16X[ChOffset+16+14],s32Hi2;\
+        MLA s32Hi,WIND_8_SUBBANDS_2_4,s16X[ChOffset+64+2],s32Hi;\
+        MLA s32Hi2,WIND_8_SUBBANDS_2_4,s16X[ChOffset+14],s32Hi2;\
+        MOV s32DCTY[2],s32Hi;\
+        MOV s32DCTY[14],s32Hi2;\
+    }\
+}
+#define WINDOW_ACCU_8_3_13 \
+{\
+    __asm\
+    {\
+        MUL s32Hi,WIND_8_SUBBANDS_3_0,s16X[ChOffset+3];\
+        MUL s32Hi2,WIND_8_SUBBANDS_3_0,s16X[ChOffset+64+13];\
+        MLA s32Hi,WIND_8_SUBBANDS_3_1,s16X[ChOffset+16+3],s32Hi;\
+        MLA s32Hi2,WIND_8_SUBBANDS_3_1,s16X[ChOffset+48+13],s32Hi2;\
+        MLA s32Hi,WIND_8_SUBBANDS_3_2,s16X[ChOffset+32+3],s32Hi;\
+        MLA s32Hi2,WIND_8_SUBBANDS_3_2,s16X[ChOffset+32+13],s32Hi2;\
+        MLA s32Hi,WIND_8_SUBBANDS_3_3,s16X[ChOffset+48+3],s32Hi;\
+        MLA s32Hi2,WIND_8_SUBBANDS_3_3,s16X[ChOffset+16+13],s32Hi2;\
+        MLA s32Hi,WIND_8_SUBBANDS_3_4,s16X[ChOffset+64+3],s32Hi;\
+        MLA s32Hi2,WIND_8_SUBBANDS_3_4,s16X[ChOffset+13],s32Hi2;\
+        MOV s32DCTY[3],s32Hi;\
+        MOV s32DCTY[13],s32Hi2;\
+    }\
+}
+#define WINDOW_ACCU_8_4_12 \
+{\
+    __asm\
+    {\
+        MUL s32Hi,WIND_8_SUBBANDS_4_0,s16X[ChOffset+4];\
+        MUL s32Hi2,WIND_8_SUBBANDS_4_0,s16X[ChOffset+64+12];\
+        MLA s32Hi,WIND_8_SUBBANDS_4_1,s16X[ChOffset+16+4],s32Hi;\
+        MLA s32Hi2,WIND_8_SUBBANDS_4_1,s16X[ChOffset+48+12],s32Hi2;\
+        MLA s32Hi,WIND_8_SUBBANDS_4_2,s16X[ChOffset+32+4],s32Hi;\
+        MLA s32Hi2,WIND_8_SUBBANDS_4_2,s16X[ChOffset+32+12],s32Hi2;\
+        MLA s32Hi,WIND_8_SUBBANDS_4_3,s16X[ChOffset+48+4],s32Hi;\
+        MLA s32Hi2,WIND_8_SUBBANDS_4_3,s16X[ChOffset+16+12],s32Hi2;\
+        MLA s32Hi,WIND_8_SUBBANDS_4_4,s16X[ChOffset+64+4],s32Hi;\
+        MLA s32Hi2,WIND_8_SUBBANDS_4_4,s16X[ChOffset+12],s32Hi2;\
+        MOV s32DCTY[4],s32Hi;\
+        MOV s32DCTY[12],s32Hi2;\
+    }\
+}
+#define WINDOW_ACCU_8_5_11 \
+{\
+    __asm\
+    {\
+        MUL s32Hi,WIND_8_SUBBANDS_5_0,s16X[ChOffset+5];\
+        MUL s32Hi2,WIND_8_SUBBANDS_5_0,s16X[ChOffset+64+11];\
+        MLA s32Hi,WIND_8_SUBBANDS_5_1,s16X[ChOffset+16+5],s32Hi;\
+        MLA s32Hi2,WIND_8_SUBBANDS_5_1,s16X[ChOffset+48+11],s32Hi2;\
+        MLA s32Hi,WIND_8_SUBBANDS_5_2,s16X[ChOffset+32+5],s32Hi;\
+        MLA s32Hi2,WIND_8_SUBBANDS_5_2,s16X[ChOffset+32+11],s32Hi2;\
+        MLA s32Hi,WIND_8_SUBBANDS_5_3,s16X[ChOffset+48+5],s32Hi;\
+        MLA s32Hi2,WIND_8_SUBBANDS_5_3,s16X[ChOffset+16+11],s32Hi2;\
+        MLA s32Hi,WIND_8_SUBBANDS_5_4,s16X[ChOffset+64+5],s32Hi;\
+        MLA s32Hi2,WIND_8_SUBBANDS_5_4,s16X[ChOffset+11],s32Hi2;\
+        MOV s32DCTY[5],s32Hi;\
+        MOV s32DCTY[11],s32Hi2;\
+    }\
+}
+#define WINDOW_ACCU_8_6_10 \
+{\
+    __asm\
+    {\
+        MUL s32Hi,WIND_8_SUBBANDS_6_0,s16X[ChOffset+6];\
+        MUL s32Hi2,WIND_8_SUBBANDS_6_0,s16X[ChOffset+64+10];\
+        MLA s32Hi,WIND_8_SUBBANDS_6_1,s16X[ChOffset+16+6],s32Hi;\
+        MLA s32Hi2,WIND_8_SUBBANDS_6_1,s16X[ChOffset+48+10],s32Hi2;\
+        MLA s32Hi,WIND_8_SUBBANDS_6_2,s16X[ChOffset+32+6],s32Hi;\
+        MLA s32Hi2,WIND_8_SUBBANDS_6_2,s16X[ChOffset+32+10],s32Hi2;\
+        MLA s32Hi,WIND_8_SUBBANDS_6_3,s16X[ChOffset+48+6],s32Hi;\
+        MLA s32Hi2,WIND_8_SUBBANDS_6_3,s16X[ChOffset+16+10],s32Hi2;\
+        MLA s32Hi,WIND_8_SUBBANDS_6_4,s16X[ChOffset+64+6],s32Hi;\
+        MLA s32Hi2,WIND_8_SUBBANDS_6_4,s16X[ChOffset+10],s32Hi2;\
+        MOV s32DCTY[6],s32Hi;\
+        MOV s32DCTY[10],s32Hi2;\
+    }\
+}
+#define WINDOW_ACCU_8_7_9 \
+{\
+    __asm\
+    {\
+        MUL s32Hi,WIND_8_SUBBANDS_7_0,s16X[ChOffset+7];\
+        MUL s32Hi2,WIND_8_SUBBANDS_7_0,s16X[ChOffset+64+9];\
+        MLA s32Hi,WIND_8_SUBBANDS_7_1,s16X[ChOffset+16+7],s32Hi;\
+        MLA s32Hi2,WIND_8_SUBBANDS_7_1,s16X[ChOffset+48+9],s32Hi2;\
+        MLA s32Hi,WIND_8_SUBBANDS_7_2,s16X[ChOffset+32+7],s32Hi;\
+        MLA s32Hi2,WIND_8_SUBBANDS_7_2,s16X[ChOffset+32+9],s32Hi2;\
+        MLA s32Hi,WIND_8_SUBBANDS_7_3,s16X[ChOffset+48+7],s32Hi;\
+        MLA s32Hi2,WIND_8_SUBBANDS_7_3,s16X[ChOffset+16+9],s32Hi2;\
+        MLA s32Hi,WIND_8_SUBBANDS_7_4,s16X[ChOffset+64+7],s32Hi;\
+        MLA s32Hi2,WIND_8_SUBBANDS_7_4,s16X[ChOffset+9],s32Hi2;\
+        MOV s32DCTY[7],s32Hi;\
+        MOV s32DCTY[9],s32Hi2;\
+    }\
+}
+#define WINDOW_ACCU_8_8 \
+{\
+    __asm\
+    {\
+        MUL s32Hi,WIND_8_SUBBANDS_8_0,(s16X[ChOffset+8]+s16X[ChOffset+8+64]);\
+        MLA s32Hi,WIND_8_SUBBANDS_8_1,(s16X[ChOffset+8+16]+s16X[ChOffset+8+64]),s32Hi;\
+        MLA s32Hi,WIND_8_SUBBANDS_8_2,s16X[ChOffset+8+32],s32Hi;\
+        MOV s32DCTY[8],s32Hi;\
+    }\
+}
+#define WINDOW_ACCU_4_0 \
+{\
+    __asm\
+    {\
+        MUL s32Hi,WIND_4_SUBBANDS_0_1,(s16X[ChOffset+8]-s16X[ChOffset+32]);\
+        MLA s32Hi,WIND_4_SUBBANDS_0_2,(s16X[ChOffset+16]-s16X[ChOffset+24]),s32Hi;\
+        MOV s32DCTY[0],s32Hi;\
+    }\
+}
+#define WINDOW_ACCU_4_1_7 \
+{\
+    __asm\
+    {\
+        MUL s32Hi,WIND_4_SUBBANDS_1_0,s16X[ChOffset+1];\
+        MUL s32Hi2,WIND_4_SUBBANDS_1_0,s16X[ChOffset+32+7];\
+        MLA s32Hi,WIND_4_SUBBANDS_1_1,s16X[ChOffset+8+1],s32Hi;\
+        MLA s32Hi2,WIND_4_SUBBANDS_1_1,s16X[ChOffset+24+7],s32Hi2;\
+        MLA s32Hi,WIND_4_SUBBANDS_1_2,s16X[ChOffset+16+1],s32Hi;\
+        MLA s32Hi2,WIND_4_SUBBANDS_1_2,s16X[ChOffset+16+7],s32Hi2;\
+        MLA s32Hi,WIND_4_SUBBANDS_1_3,s16X[ChOffset+24+1],s32Hi;\
+        MLA s32Hi2,WIND_4_SUBBANDS_1_3,s16X[ChOffset+8+7],s32Hi2;\
+        MLA s32Hi,WIND_4_SUBBANDS_1_4,s16X[ChOffset+32+1],s32Hi;\
+        MLA s32Hi2,WIND_4_SUBBANDS_1_4,s16X[ChOffset+7],s32Hi2;\
+        MOV s32DCTY[1],s32Hi;\
+        MOV s32DCTY[7],s32Hi2;\
+    }\
+}
+#define WINDOW_ACCU_4_2_6 \
+{\
+    __asm\
+    {\
+        MUL s32Hi,WIND_4_SUBBANDS_2_0,s16X[ChOffset+2];\
+        MUL s32Hi2,WIND_4_SUBBANDS_2_0,s16X[ChOffset+32+6];\
+        MLA s32Hi,WIND_4_SUBBANDS_2_1,s16X[ChOffset+8+2],s32Hi;\
+        MLA s32Hi2,WIND_4_SUBBANDS_2_1,s16X[ChOffset+24+6],s32Hi2;\
+        MLA s32Hi,WIND_4_SUBBANDS_2_2,s16X[ChOffset+16+2],s32Hi;\
+        MLA s32Hi2,WIND_4_SUBBANDS_2_2,s16X[ChOffset+16+6],s32Hi2;\
+        MLA s32Hi,WIND_4_SUBBANDS_2_3,s16X[ChOffset+24+2],s32Hi;\
+        MLA s32Hi2,WIND_4_SUBBANDS_2_3,s16X[ChOffset+8+6],s32Hi2;\
+        MLA s32Hi,WIND_4_SUBBANDS_2_4,s16X[ChOffset+32+2],s32Hi;\
+        MLA s32Hi2,WIND_4_SUBBANDS_2_4,s16X[ChOffset+6],s32Hi2;\
+        MOV s32DCTY[2],s32Hi;\
+        MOV s32DCTY[6],s32Hi2;\
+    }\
+}
+#define WINDOW_ACCU_4_3_5 \
+{\
+    __asm\
+    {\
+        MUL s32Hi,WIND_4_SUBBANDS_3_0,s16X[ChOffset+3];\
+        MUL s32Hi2,WIND_4_SUBBANDS_3_0,s16X[ChOffset+32+5];\
+        MLA s32Hi,WIND_4_SUBBANDS_3_1,s16X[ChOffset+8+3],s32Hi;\
+        MLA s32Hi2,WIND_4_SUBBANDS_3_1,s16X[ChOffset+24+5],s32Hi2;\
+        MLA s32Hi,WIND_4_SUBBANDS_3_2,s16X[ChOffset+16+3],s32Hi;\
+        MLA s32Hi2,WIND_4_SUBBANDS_3_2,s16X[ChOffset+16+5],s32Hi2;\
+        MLA s32Hi,WIND_4_SUBBANDS_3_3,s16X[ChOffset+24+3],s32Hi;\
+        MLA s32Hi2,WIND_4_SUBBANDS_3_3,s16X[ChOffset+8+5],s32Hi2;\
+        MLA s32Hi,WIND_4_SUBBANDS_3_4,s16X[ChOffset+32+3],s32Hi;\
+        MLA s32Hi2,WIND_4_SUBBANDS_3_4,s16X[ChOffset+5],s32Hi2;\
+        MOV s32DCTY[3],s32Hi;\
+        MOV s32DCTY[5],s32Hi2;\
+    }\
+}
+#define WINDOW_ACCU_4_4 \
+{\
+    __asm\
+    {\
+        MUL s32Hi,WIND_4_SUBBANDS_4_0,(s16X[ChOffset+4]+s16X[ChOffset+4+32]);\
+        MLA s32Hi,WIND_4_SUBBANDS_4_1,(s16X[ChOffset+4+8]+s16X[ChOffset+4+24]),s32Hi;\
+        MLA s32Hi,WIND_4_SUBBANDS_4_2,s16X[ChOffset+4+16],s32Hi;\
+        MOV s32DCTY[4],s32Hi;\
+    }\
+}
+
+#define WINDOW_PARTIAL_4 \
+{\
+    WINDOW_ACCU_4_0;     WINDOW_ACCU_4_1_7;\
+    WINDOW_ACCU_4_2_6;   WINDOW_ACCU_4_3_5;\
+    WINDOW_ACCU_4_4;\
+}
+
+#define WINDOW_PARTIAL_8 \
+{\
+    WINDOW_ACCU_8_0;     WINDOW_ACCU_8_1_15;\
+    WINDOW_ACCU_8_2_14;  WINDOW_ACCU_8_3_13;\
+    WINDOW_ACCU_8_4_12;  WINDOW_ACCU_8_5_11;\
+    WINDOW_ACCU_8_6_10;  WINDOW_ACCU_8_7_9;\
+    WINDOW_ACCU_8_8;\
+}
+
+#else
+#if (SBC_IPAQ_OPT==TRUE)
+
+#if (SBC_IS_64_MULT_IN_WINDOW_ACCU == TRUE)
+#define WINDOW_ACCU_8_0 \
+{\
+    s64Temp=(SINT64)WIND_8_SUBBANDS_0_1*(SINT64)(s16X[ChOffset+16]-s16X[ChOffset+64]);\
+    s64Temp+=(SINT64)WIND_8_SUBBANDS_0_2*(SINT64)(s16X[ChOffset+32]-s16X[ChOffset+48]);\
+    s32DCTY[0]=(SINT32)(s64Temp>>16);\
+}
+#define WINDOW_ACCU_8_1_15 \
+{\
+    s64Temp=(SINT64)WIND_8_SUBBANDS_1_0*(SINT64)s16X[ChOffset+1];\
+    s64Temp2=(SINT64)WIND_8_SUBBANDS_1_0*(SINT64)s16X[ChOffset+64+15];\
+    s64Temp+=(SINT64)WIND_8_SUBBANDS_1_1*(SINT64)s16X[ChOffset+16+1];\
+    s64Temp2+=(SINT64)WIND_8_SUBBANDS_1_1*(SINT64)s16X[ChOffset+48+15];\
+    s64Temp+=(SINT64)WIND_8_SUBBANDS_1_2*(SINT64)s16X[ChOffset+32+1];\
+    s64Temp2+=(SINT64)WIND_8_SUBBANDS_1_2*(SINT64)s16X[ChOffset+32+15];\
+    s64Temp+=(SINT64)WIND_8_SUBBANDS_1_3*(SINT64)s16X[ChOffset+48+1];\
+    s64Temp2+=(SINT64)WIND_8_SUBBANDS_1_3*(SINT64)s16X[ChOffset+16+15];\
+    s64Temp+=(SINT64)WIND_8_SUBBANDS_1_4*(SINT64)s16X[ChOffset+64+1];\
+    s64Temp2+=(SINT64)WIND_8_SUBBANDS_1_4*(SINT64)s16X[ChOffset+15];\
+    s32DCTY[1]=(SINT32)(s64Temp>>16);\
+    s32DCTY[15]=(SINT32)(s64Temp2>>16);\
+}
+#define WINDOW_ACCU_8_2_14 \
+{\
+    s64Temp=(SINT64)WIND_8_SUBBANDS_2_0*(SINT64)s16X[ChOffset+2];\
+    s64Temp2=(SINT64)WIND_8_SUBBANDS_2_0*(SINT64)s16X[ChOffset+64+14];\
+    s64Temp+=(SINT64)WIND_8_SUBBANDS_2_1*(SINT64)s16X[ChOffset+16+2];\
+    s64Temp2+=(SINT64)WIND_8_SUBBANDS_2_1*(SINT64)s16X[ChOffset+48+14];\
+    s64Temp+=(SINT64)WIND_8_SUBBANDS_2_2*(SINT64)s16X[ChOffset+32+2];\
+    s64Temp2+=(SINT64)WIND_8_SUBBANDS_2_2*(SINT64)s16X[ChOffset+32+14];\
+    s64Temp+=(SINT64)WIND_8_SUBBANDS_2_3*(SINT64)s16X[ChOffset+48+2];\
+    s64Temp2+=(SINT64)WIND_8_SUBBANDS_2_3*(SINT64)s16X[ChOffset+16+14];\
+    s64Temp+=(SINT64)WIND_8_SUBBANDS_2_4*(SINT64)s16X[ChOffset+64+2];\
+    s64Temp2+=(SINT64)WIND_8_SUBBANDS_2_4*(SINT64)s16X[ChOffset+14];\
+    s32DCTY[2]=(SINT32)(s64Temp>>16);\
+    s32DCTY[14]=(SINT32)(s64Temp2>>16);\
+}
+#define WINDOW_ACCU_8_3_13 \
+{\
+    s64Temp=(SINT64)WIND_8_SUBBANDS_3_0*(SINT64)s16X[ChOffset+3];\
+    s64Temp2=(SINT64)WIND_8_SUBBANDS_3_0*(SINT64)s16X[ChOffset+64+13];\
+    s64Temp+=(SINT64)WIND_8_SUBBANDS_3_1*(SINT64)s16X[ChOffset+16+3];\
+    s64Temp2+=(SINT64)WIND_8_SUBBANDS_3_1*(SINT64)s16X[ChOffset+48+13];\
+    s64Temp+=(SINT64)WIND_8_SUBBANDS_3_2*(SINT64)s16X[ChOffset+32+3];\
+    s64Temp2+=(SINT64)WIND_8_SUBBANDS_3_2*(SINT64)s16X[ChOffset+32+13];\
+    s64Temp+=(SINT64)WIND_8_SUBBANDS_3_3*(SINT64)s16X[ChOffset+48+3];\
+    s64Temp2+=(SINT64)WIND_8_SUBBANDS_3_3*(SINT64)s16X[ChOffset+16+13];\
+    s64Temp+=(SINT64)WIND_8_SUBBANDS_3_4*(SINT64)s16X[ChOffset+64+3];\
+    s64Temp2+=(SINT64)WIND_8_SUBBANDS_3_4*(SINT64)s16X[ChOffset+13];\
+    s32DCTY[3]=(SINT32)(s64Temp>>16);\
+    s32DCTY[13]=(SINT32)(s64Temp2>>16);\
+}
+#define WINDOW_ACCU_8_4_12 \
+{\
+    s64Temp=(SINT64)WIND_8_SUBBANDS_4_0*(SINT64)s16X[ChOffset+4];\
+    s64Temp2=(SINT64)WIND_8_SUBBANDS_4_0*(SINT64)s16X[ChOffset+64+12];\
+    s64Temp+=(SINT64)WIND_8_SUBBANDS_4_1*(SINT64)s16X[ChOffset+16+4];\
+    s64Temp2+=(SINT64)WIND_8_SUBBANDS_4_1*(SINT64)s16X[ChOffset+48+12];\
+    s64Temp+=(SINT64)WIND_8_SUBBANDS_4_2*(SINT64)s16X[ChOffset+32+4];\
+    s64Temp2+=(SINT64)WIND_8_SUBBANDS_4_2*(SINT64)s16X[ChOffset+32+12];\
+    s64Temp+=(SINT64)WIND_8_SUBBANDS_4_3*(SINT64)s16X[ChOffset+48+4];\
+    s64Temp2+=(SINT64)WIND_8_SUBBANDS_4_3*(SINT64)s16X[ChOffset+16+12];\
+    s64Temp+=(SINT64)WIND_8_SUBBANDS_4_4*(SINT64)s16X[ChOffset+64+4];\
+    s64Temp2+=(SINT64)WIND_8_SUBBANDS_4_4*(SINT64)s16X[ChOffset+12];\
+    s32DCTY[4]=(SINT32)(s64Temp>>16);\
+    s32DCTY[12]=(SINT32)(s64Temp2>>16);\
+}
+#define WINDOW_ACCU_8_5_11 \
+{\
+    s64Temp=(SINT64)WIND_8_SUBBANDS_5_0*(SINT64)s16X[ChOffset+5];\
+    s64Temp2=(SINT64)WIND_8_SUBBANDS_5_0*(SINT64)s16X[ChOffset+64+11];\
+    s64Temp+=(SINT64)WIND_8_SUBBANDS_5_1*(SINT64)s16X[ChOffset+16+5];\
+    s64Temp2+=(SINT64)WIND_8_SUBBANDS_5_1*(SINT64)s16X[ChOffset+48+11];\
+    s64Temp+=(SINT64)WIND_8_SUBBANDS_5_2*(SINT64)s16X[ChOffset+32+5];\
+    s64Temp2+=(SINT64)WIND_8_SUBBANDS_5_2*(SINT64)s16X[ChOffset+32+11];\
+    s64Temp+=(SINT64)WIND_8_SUBBANDS_5_3*(SINT64)s16X[ChOffset+48+5];\
+    s64Temp2+=(SINT64)WIND_8_SUBBANDS_5_3*(SINT64)s16X[ChOffset+16+11];\
+    s64Temp+=(SINT64)WIND_8_SUBBANDS_5_4*(SINT64)s16X[ChOffset+64+5];\
+    s64Temp2+=(SINT64)WIND_8_SUBBANDS_5_4*(SINT64)s16X[ChOffset+11];\
+    s32DCTY[5]=(SINT32)(s64Temp>>16);\
+    s32DCTY[11]=(SINT32)(s64Temp2>>16);\
+}
+#define WINDOW_ACCU_8_6_10 \
+{\
+    s64Temp=(SINT64)WIND_8_SUBBANDS_6_0*(SINT64)s16X[ChOffset+6];\
+    s64Temp2=(SINT64)WIND_8_SUBBANDS_6_0*(SINT64)s16X[ChOffset+64+10];\
+    s64Temp+=(SINT64)WIND_8_SUBBANDS_6_1*(SINT64)s16X[ChOffset+16+6];\
+    s64Temp2+=(SINT64)WIND_8_SUBBANDS_6_1*(SINT64)s16X[ChOffset+48+10];\
+    s64Temp+=(SINT64)WIND_8_SUBBANDS_6_2*(SINT64)s16X[ChOffset+32+6];\
+    s64Temp2+=(SINT64)WIND_8_SUBBANDS_6_2*(SINT64)s16X[ChOffset+32+10];\
+    s64Temp+=(SINT64)WIND_8_SUBBANDS_6_3*(SINT64)s16X[ChOffset+48+6];\
+    s64Temp2+=(SINT64)WIND_8_SUBBANDS_6_3*(SINT64)s16X[ChOffset+16+10];\
+    s64Temp+=(SINT64)WIND_8_SUBBANDS_6_4*(SINT64)s16X[ChOffset+64+6];\
+    s64Temp2+=(SINT64)WIND_8_SUBBANDS_6_4*(SINT64)s16X[ChOffset+10];\
+    s32DCTY[6]=(SINT32)(s64Temp>>16);\
+    s32DCTY[10]=(SINT32)(s64Temp2>>16);\
+}
+#define WINDOW_ACCU_8_7_9 \
+{\
+    s64Temp=(SINT64)WIND_8_SUBBANDS_7_0*(SINT64)s16X[ChOffset+7];\
+    s64Temp2=(SINT64)WIND_8_SUBBANDS_7_0*(SINT64)s16X[ChOffset+64+9];\
+    s64Temp+=(SINT64)WIND_8_SUBBANDS_7_1*(SINT64)s16X[ChOffset+16+7];\
+    s64Temp2+=(SINT64)WIND_8_SUBBANDS_7_1*(SINT64)s16X[ChOffset+48+9];\
+    s64Temp+=(SINT64)WIND_8_SUBBANDS_7_2*(SINT64)s16X[ChOffset+32+7];\
+    s64Temp2+=(SINT64)WIND_8_SUBBANDS_7_2*(SINT64)s16X[ChOffset+32+9];\
+    s64Temp+=(SINT64)WIND_8_SUBBANDS_7_3*(SINT64)s16X[ChOffset+48+7];\
+    s64Temp2+=(SINT64)WIND_8_SUBBANDS_7_3*(SINT64)s16X[ChOffset+16+9];\
+    s64Temp+=(SINT64)WIND_8_SUBBANDS_7_4*(SINT64)s16X[ChOffset+64+7];\
+    s64Temp2+=(SINT64)WIND_8_SUBBANDS_7_4*(SINT64)s16X[ChOffset+9];\
+    s32DCTY[7]=(SINT32)(s64Temp>>16);\
+    s32DCTY[9]=(SINT32)(s64Temp2>>16);\
+}
+#define WINDOW_ACCU_8_8 \
+{\
+    s64Temp=(SINT64)WIND_8_SUBBANDS_8_0*(SINT64)(s16X[ChOffset+8]+s16X[ChOffset+64+8]);\
+    s64Temp+=(SINT64)WIND_8_SUBBANDS_8_1*(SINT64)(s16X[ChOffset+16+8]+s16X[ChOffset+48+8]);\
+    s64Temp+=(SINT64)WIND_8_SUBBANDS_8_2*(SINT64)s16X[ChOffset+32+8];\
+    s32DCTY[8]=(SINT32)(s64Temp>>16);\
+}
+#define WINDOW_ACCU_4_0 \
+{\
+    s64Temp=(SINT64)WIND_4_SUBBANDS_0_1*(SINT64)(s16X[ChOffset+8]-s16X[ChOffset+32]);\
+    s64Temp+=(SINT64)WIND_4_SUBBANDS_0_2*(SINT64)(s16X[ChOffset+16]-s16X[ChOffset+24]);\
+    s32DCTY[0]=(SINT32)(s64Temp>>16);\
+}
+#define WINDOW_ACCU_4_1_7 \
+{\
+    s64Temp=(SINT64)WIND_4_SUBBANDS_1_0*(SINT64)s16X[ChOffset+1];\
+    s64Temp2=(SINT64)WIND_4_SUBBANDS_1_0*(SINT64)s16X[ChOffset+32+7];\
+    s64Temp+=(SINT64)WIND_4_SUBBANDS_1_1*(SINT64)s16X[ChOffset+8+1];\
+    s64Temp2+=(SINT64)WIND_4_SUBBANDS_1_1*(SINT64)s16X[ChOffset+24+7];\
+    s64Temp+=(SINT64)WIND_4_SUBBANDS_1_2*(SINT64)s16X[ChOffset+16+1];\
+    s64Temp2+=(SINT64)WIND_4_SUBBANDS_1_2*(SINT64)s16X[ChOffset+16+7];\
+    s64Temp+=(SINT64)WIND_4_SUBBANDS_1_3*(SINT64)s16X[ChOffset+24+1];\
+    s64Temp2+=(SINT64)WIND_4_SUBBANDS_1_3*(SINT64)s16X[ChOffset+8+7];\
+    s64Temp+=(SINT64)WIND_4_SUBBANDS_1_4*(SINT64)s16X[ChOffset+32+1];\
+    s64Temp2+=(SINT64)WIND_4_SUBBANDS_1_4*(SINT64)s16X[ChOffset+7];\
+    s32DCTY[1]=(SINT32)(s64Temp>>16);\
+    s32DCTY[7]=(SINT32)(s64Temp2>>16);\
+}
+#define WINDOW_ACCU_4_2_6 \
+{\
+    s64Temp=(SINT64)WIND_4_SUBBANDS_2_0*(SINT64)s16X[ChOffset+2];\
+    s64Temp2=(SINT64)WIND_4_SUBBANDS_2_0*(SINT64)s16X[ChOffset+32+6];\
+    s64Temp+=(SINT64)WIND_4_SUBBANDS_2_1*(SINT64)s16X[ChOffset+8+2];\
+    s64Temp2+=(SINT64)WIND_4_SUBBANDS_2_1*(SINT64)s16X[ChOffset+24+6];\
+    s64Temp+=(SINT64)WIND_4_SUBBANDS_2_2*(SINT64)s16X[ChOffset+16+2];\
+    s64Temp2+=(SINT64)WIND_4_SUBBANDS_2_2*(SINT64)s16X[ChOffset+16+6];\
+    s64Temp+=(SINT64)WIND_4_SUBBANDS_2_3*(SINT64)s16X[ChOffset+24+2];\
+    s64Temp2+=(SINT64)WIND_4_SUBBANDS_2_3*(SINT64)s16X[ChOffset+8+6];\
+    s64Temp+=(SINT64)WIND_4_SUBBANDS_2_4*(SINT64)s16X[ChOffset+32+2];\
+    s64Temp2+=(SINT64)WIND_4_SUBBANDS_2_4*(SINT64)s16X[ChOffset+6];\
+    s32DCTY[2]=(SINT32)(s64Temp>>16);\
+    s32DCTY[6]=(SINT32)(s64Temp2>>16);\
+}
+#define WINDOW_ACCU_4_3_5 \
+{\
+    s64Temp=(SINT64)WIND_4_SUBBANDS_3_0*(SINT64)s16X[ChOffset+3];\
+    s64Temp2=(SINT64)WIND_4_SUBBANDS_3_0*(SINT64)s16X[ChOffset+32+5];\
+    s64Temp+=(SINT64)WIND_4_SUBBANDS_3_1*(SINT64)s16X[ChOffset+8+3];\
+    s64Temp2+=(SINT64)WIND_4_SUBBANDS_3_1*(SINT64)s16X[ChOffset+24+5];\
+    s64Temp+=(SINT64)WIND_4_SUBBANDS_3_2*(SINT64)s16X[ChOffset+16+3];\
+    s64Temp2+=(SINT64)WIND_4_SUBBANDS_3_2*(SINT64)s16X[ChOffset+16+5];\
+    s64Temp+=(SINT64)WIND_4_SUBBANDS_3_3*(SINT64)s16X[ChOffset+24+3];\
+    s64Temp2+=(SINT64)WIND_4_SUBBANDS_3_3*(SINT64)s16X[ChOffset+8+5];\
+    s64Temp+=(SINT64)WIND_4_SUBBANDS_3_4*(SINT64)s16X[ChOffset+32+3];\
+    s64Temp2+=(SINT64)WIND_4_SUBBANDS_3_4*(SINT64)s16X[ChOffset+5];\
+    s32DCTY[3]=(SINT32)(s64Temp>>16);\
+    s32DCTY[5]=(SINT32)(s64Temp2>>16);\
+}
+
+#define WINDOW_ACCU_4_4 \
+{\
+    s64Temp=(SINT64)WIND_4_SUBBANDS_4_0*(SINT64)(s16X[ChOffset+4]+s16X[ChOffset+4+32]);\
+    s64Temp+=(SINT64)WIND_4_SUBBANDS_4_1*(SINT64)(s16X[ChOffset+4+8]+s16X[ChOffset+4+24]);\
+    s64Temp+=(SINT64)WIND_4_SUBBANDS_4_2*(SINT64)s16X[ChOffset+4+16];\
+    s32DCTY[4]=(SINT32)(s64Temp>>16);\
+}
+#else /* SBC_IS_64_MULT_IN_WINDOW_ACCU == FALSE */
+#define WINDOW_ACCU_8_0 \
+{\
+    s32Temp=(SINT32)WIND_8_SUBBANDS_0_1*(SINT32)(s16X[ChOffset+16]-s16X[ChOffset+64]);\
+    s32Temp+=(SINT32)WIND_8_SUBBANDS_0_2*(SINT32)(s16X[ChOffset+32]-s16X[ChOffset+48]);\
+    s32DCTY[0]=(SINT32)s32Temp;\
+}
+#define WINDOW_ACCU_8_1_15 \
+{\
+    s32Temp=(SINT32)WIND_8_SUBBANDS_1_0*(SINT32)s16X[ChOffset+1];\
+    s32Temp2=(SINT32)WIND_8_SUBBANDS_1_0*(SINT32)s16X[ChOffset+64+15];\
+    s32Temp+=(SINT32)WIND_8_SUBBANDS_1_1*(SINT32)s16X[ChOffset+16+1];\
+    s32Temp2+=(SINT32)WIND_8_SUBBANDS_1_1*(SINT32)s16X[ChOffset+48+15];\
+    s32Temp+=(SINT32)WIND_8_SUBBANDS_1_2*(SINT32)s16X[ChOffset+32+1];\
+    s32Temp2+=(SINT32)WIND_8_SUBBANDS_1_2*(SINT32)s16X[ChOffset+32+15];\
+    s32Temp+=(SINT32)WIND_8_SUBBANDS_1_3*(SINT32)s16X[ChOffset+48+1];\
+    s32Temp2+=(SINT32)WIND_8_SUBBANDS_1_3*(SINT32)s16X[ChOffset+16+15];\
+    s32Temp+=(SINT32)WIND_8_SUBBANDS_1_4*(SINT32)s16X[ChOffset+64+1];\
+    s32Temp2+=(SINT32)WIND_8_SUBBANDS_1_4*(SINT32)s16X[ChOffset+15];\
+    s32DCTY[1]=(SINT32)s32Temp;\
+    s32DCTY[15]=(SINT32)s32Temp2;\
+}
+#define WINDOW_ACCU_8_2_14 \
+{\
+    s32Temp=(SINT32)WIND_8_SUBBANDS_2_0*(SINT32)s16X[ChOffset+2];\
+    s32Temp2=(SINT32)WIND_8_SUBBANDS_2_0*(SINT32)s16X[ChOffset+64+14];\
+    s32Temp+=(SINT32)WIND_8_SUBBANDS_2_1*(SINT32)s16X[ChOffset+16+2];\
+    s32Temp2+=(SINT32)WIND_8_SUBBANDS_2_1*(SINT32)s16X[ChOffset+48+14];\
+    s32Temp+=(SINT32)WIND_8_SUBBANDS_2_2*(SINT32)s16X[ChOffset+32+2];\
+    s32Temp2+=(SINT32)WIND_8_SUBBANDS_2_2*(SINT32)s16X[ChOffset+32+14];\
+    s32Temp+=(SINT32)WIND_8_SUBBANDS_2_3*(SINT32)s16X[ChOffset+48+2];\
+    s32Temp2+=(SINT32)WIND_8_SUBBANDS_2_3*(SINT32)s16X[ChOffset+16+14];\
+    s32Temp+=(SINT32)WIND_8_SUBBANDS_2_4*(SINT32)s16X[ChOffset+64+2];\
+    s32Temp2+=(SINT32)WIND_8_SUBBANDS_2_4*(SINT32)s16X[ChOffset+14];\
+    s32DCTY[2]=(SINT32)s32Temp;\
+    s32DCTY[14]=(SINT32)s32Temp2;\
+}
+#define WINDOW_ACCU_8_3_13 \
+{\
+    s32Temp=(SINT32)WIND_8_SUBBANDS_3_0*(SINT32)s16X[ChOffset+3];\
+    s32Temp2=(SINT32)WIND_8_SUBBANDS_3_0*(SINT32)s16X[ChOffset+64+13];\
+    s32Temp+=(SINT32)WIND_8_SUBBANDS_3_1*(SINT32)s16X[ChOffset+16+3];\
+    s32Temp2+=(SINT32)WIND_8_SUBBANDS_3_1*(SINT32)s16X[ChOffset+48+13];\
+    s32Temp+=(SINT32)WIND_8_SUBBANDS_3_2*(SINT32)s16X[ChOffset+32+3];\
+    s32Temp2+=(SINT32)WIND_8_SUBBANDS_3_2*(SINT32)s16X[ChOffset+32+13];\
+    s32Temp+=(SINT32)WIND_8_SUBBANDS_3_3*(SINT32)s16X[ChOffset+48+3];\
+    s32Temp2+=(SINT32)WIND_8_SUBBANDS_3_3*(SINT32)s16X[ChOffset+16+13];\
+    s32Temp+=(SINT32)WIND_8_SUBBANDS_3_4*(SINT32)s16X[ChOffset+64+3];\
+    s32Temp2+=(SINT32)WIND_8_SUBBANDS_3_4*(SINT32)s16X[ChOffset+13];\
+    s32DCTY[3]=(SINT32)s32Temp;\
+    s32DCTY[13]=(SINT32)s32Temp2;\
+}
+#define WINDOW_ACCU_8_4_12 \
+{\
+    s32Temp=(SINT32)WIND_8_SUBBANDS_4_0*(SINT32)s16X[ChOffset+4];\
+    s32Temp2=(SINT32)WIND_8_SUBBANDS_4_0*(SINT32)s16X[ChOffset+64+12];\
+    s32Temp+=(SINT32)WIND_8_SUBBANDS_4_1*(SINT32)s16X[ChOffset+16+4];\
+    s32Temp2+=(SINT32)WIND_8_SUBBANDS_4_1*(SINT32)s16X[ChOffset+48+12];\
+    s32Temp+=(SINT32)WIND_8_SUBBANDS_4_2*(SINT32)s16X[ChOffset+32+4];\
+    s32Temp2+=(SINT32)WIND_8_SUBBANDS_4_2*(SINT32)s16X[ChOffset+32+12];\
+    s32Temp+=(SINT32)WIND_8_SUBBANDS_4_3*(SINT32)s16X[ChOffset+48+4];\
+    s32Temp2+=(SINT32)WIND_8_SUBBANDS_4_3*(SINT32)s16X[ChOffset+16+12];\
+    s32Temp+=(SINT32)WIND_8_SUBBANDS_4_4*(SINT32)s16X[ChOffset+64+4];\
+    s32Temp2+=(SINT32)WIND_8_SUBBANDS_4_4*(SINT32)s16X[ChOffset+12];\
+    s32DCTY[4]=(SINT32)s32Temp;\
+    s32DCTY[12]=(SINT32)s32Temp2;\
+}
+#define WINDOW_ACCU_8_5_11 \
+{\
+    s32Temp=(SINT32)WIND_8_SUBBANDS_5_0*(SINT32)s16X[ChOffset+5];\
+    s32Temp2=(SINT32)WIND_8_SUBBANDS_5_0*(SINT32)s16X[ChOffset+64+11];\
+    s32Temp+=(SINT32)WIND_8_SUBBANDS_5_1*(SINT32)s16X[ChOffset+16+5];\
+    s32Temp2+=(SINT32)WIND_8_SUBBANDS_5_1*(SINT32)s16X[ChOffset+48+11];\
+    s32Temp+=(SINT32)WIND_8_SUBBANDS_5_2*(SINT32)s16X[ChOffset+32+5];\
+    s32Temp2+=(SINT32)WIND_8_SUBBANDS_5_2*(SINT32)s16X[ChOffset+32+11];\
+    s32Temp+=(SINT32)WIND_8_SUBBANDS_5_3*(SINT32)s16X[ChOffset+48+5];\
+    s32Temp2+=(SINT32)WIND_8_SUBBANDS_5_3*(SINT32)s16X[ChOffset+16+11];\
+    s32Temp+=(SINT32)WIND_8_SUBBANDS_5_4*(SINT32)s16X[ChOffset+64+5];\
+    s32Temp2+=(SINT32)WIND_8_SUBBANDS_5_4*(SINT32)s16X[ChOffset+11];\
+    s32DCTY[5]=(SINT32)s32Temp;\
+    s32DCTY[11]=(SINT32)s32Temp2;\
+}
+#define WINDOW_ACCU_8_6_10 \
+{\
+    s32Temp=(SINT32)WIND_8_SUBBANDS_6_0*(SINT32)s16X[ChOffset+6];\
+    s32Temp2=(SINT32)WIND_8_SUBBANDS_6_0*(SINT32)s16X[ChOffset+64+10];\
+    s32Temp+=(SINT32)WIND_8_SUBBANDS_6_1*(SINT32)s16X[ChOffset+16+6];\
+    s32Temp2+=(SINT32)WIND_8_SUBBANDS_6_1*(SINT32)s16X[ChOffset+48+10];\
+    s32Temp+=(SINT32)WIND_8_SUBBANDS_6_2*(SINT32)s16X[ChOffset+32+6];\
+    s32Temp2+=(SINT32)WIND_8_SUBBANDS_6_2*(SINT32)s16X[ChOffset+32+10];\
+    s32Temp+=(SINT32)WIND_8_SUBBANDS_6_3*(SINT32)s16X[ChOffset+48+6];\
+    s32Temp2+=(SINT32)WIND_8_SUBBANDS_6_3*(SINT32)s16X[ChOffset+16+10];\
+    s32Temp+=(SINT32)WIND_8_SUBBANDS_6_4*(SINT32)s16X[ChOffset+64+6];\
+    s32Temp2+=(SINT32)WIND_8_SUBBANDS_6_4*(SINT32)s16X[ChOffset+10];\
+    s32DCTY[6]=(SINT32)s32Temp;\
+    s32DCTY[10]=(SINT32)s32Temp2;\
+}
+#define WINDOW_ACCU_8_7_9 \
+{\
+    s32Temp=(SINT32)WIND_8_SUBBANDS_7_0*(SINT32)s16X[ChOffset+7];\
+    s32Temp2=(SINT32)WIND_8_SUBBANDS_7_0*(SINT32)s16X[ChOffset+64+9];\
+    s32Temp+=(SINT32)WIND_8_SUBBANDS_7_1*(SINT32)s16X[ChOffset+16+7];\
+    s32Temp2+=(SINT32)WIND_8_SUBBANDS_7_1*(SINT32)s16X[ChOffset+48+9];\
+    s32Temp+=(SINT32)WIND_8_SUBBANDS_7_2*(SINT32)s16X[ChOffset+32+7];\
+    s32Temp2+=(SINT32)WIND_8_SUBBANDS_7_2*(SINT32)s16X[ChOffset+32+9];\
+    s32Temp+=(SINT32)WIND_8_SUBBANDS_7_3*(SINT32)s16X[ChOffset+48+7];\
+    s32Temp2+=(SINT32)WIND_8_SUBBANDS_7_3*(SINT32)s16X[ChOffset+16+9];\
+    s32Temp+=(SINT32)WIND_8_SUBBANDS_7_4*(SINT32)s16X[ChOffset+64+7];\
+    s32Temp2+=(SINT32)WIND_8_SUBBANDS_7_4*(SINT32)s16X[ChOffset+9];\
+    s32DCTY[7]=(SINT32)s32Temp;\
+    s32DCTY[9]=(SINT32)s32Temp2;\
+}
+#define WINDOW_ACCU_8_8 \
+{\
+    s32Temp=(SINT32)WIND_8_SUBBANDS_8_0*(SINT32)(s16X[ChOffset+8]+s16X[ChOffset+64+8]);\
+    s32Temp+=(SINT32)WIND_8_SUBBANDS_8_1*(SINT32)(s16X[ChOffset+16+8]+s16X[ChOffset+48+8]);\
+    s32Temp+=(SINT32)WIND_8_SUBBANDS_8_2*(SINT32)s16X[ChOffset+32+8];\
+    s32DCTY[8]=(SINT32)s32Temp;\
+}
+#define WINDOW_ACCU_4_0 \
+{\
+    s32Temp=(SINT32)WIND_4_SUBBANDS_0_1*(SINT32)(s16X[ChOffset+8]-s16X[ChOffset+32]);\
+    s32Temp+=(SINT32)WIND_4_SUBBANDS_0_2*(SINT32)(s16X[ChOffset+16]-s16X[ChOffset+24]);\
+    s32DCTY[0]=(SINT32)(s32Temp);\
+}
+#define WINDOW_ACCU_4_1_7 \
+{\
+    s32Temp=(SINT32)WIND_4_SUBBANDS_1_0*(SINT32)s16X[ChOffset+1];\
+    s32Temp2=(SINT32)WIND_4_SUBBANDS_1_0*(SINT32)s16X[ChOffset+32+7];\
+    s32Temp+=(SINT32)WIND_4_SUBBANDS_1_1*(SINT32)s16X[ChOffset+8+1];\
+    s32Temp2+=(SINT32)WIND_4_SUBBANDS_1_1*(SINT32)s16X[ChOffset+24+7];\
+    s32Temp+=(SINT32)WIND_4_SUBBANDS_1_2*(SINT32)s16X[ChOffset+16+1];\
+    s32Temp2+=(SINT32)WIND_4_SUBBANDS_1_2*(SINT32)s16X[ChOffset+16+7];\
+    s32Temp+=(SINT32)WIND_4_SUBBANDS_1_3*(SINT32)s16X[ChOffset+24+1];\
+    s32Temp2+=(SINT32)WIND_4_SUBBANDS_1_3*(SINT32)s16X[ChOffset+8+7];\
+    s32Temp+=(SINT32)WIND_4_SUBBANDS_1_4*(SINT32)s16X[ChOffset+32+1];\
+    s32Temp2+=(SINT32)WIND_4_SUBBANDS_1_4*(SINT32)s16X[ChOffset+7];\
+    s32DCTY[1]=(SINT32)(s32Temp);\
+    s32DCTY[7]=(SINT32)(s32Temp2);\
+}
+#define WINDOW_ACCU_4_2_6 \
+{\
+    s32Temp=(SINT32)WIND_4_SUBBANDS_2_0*(SINT32)s16X[ChOffset+2];\
+    s32Temp2=(SINT32)WIND_4_SUBBANDS_2_0*(SINT32)s16X[ChOffset+32+6];\
+    s32Temp+=(SINT32)WIND_4_SUBBANDS_2_1*(SINT32)s16X[ChOffset+8+2];\
+    s32Temp2+=(SINT32)WIND_4_SUBBANDS_2_1*(SINT32)s16X[ChOffset+24+6];\
+    s32Temp+=(SINT32)WIND_4_SUBBANDS_2_2*(SINT32)s16X[ChOffset+16+2];\
+    s32Temp2+=(SINT32)WIND_4_SUBBANDS_2_2*(SINT32)s16X[ChOffset+16+6];\
+    s32Temp+=(SINT32)WIND_4_SUBBANDS_2_3*(SINT32)s16X[ChOffset+24+2];\
+    s32Temp2+=(SINT32)WIND_4_SUBBANDS_2_3*(SINT32)s16X[ChOffset+8+6];\
+    s32Temp+=(SINT32)WIND_4_SUBBANDS_2_4*(SINT32)s16X[ChOffset+32+2];\
+    s32Temp2+=(SINT32)WIND_4_SUBBANDS_2_4*(SINT32)s16X[ChOffset+6];\
+    s32DCTY[2]=(SINT32)(s32Temp);\
+    s32DCTY[6]=(SINT32)(s32Temp2);\
+}
+#define WINDOW_ACCU_4_3_5 \
+{\
+    s32Temp=(SINT32)WIND_4_SUBBANDS_3_0*(SINT32)s16X[ChOffset+3];\
+    s32Temp2=(SINT32)WIND_4_SUBBANDS_3_0*(SINT32)s16X[ChOffset+32+5];\
+    s32Temp+=(SINT32)WIND_4_SUBBANDS_3_1*(SINT32)s16X[ChOffset+8+3];\
+    s32Temp2+=(SINT32)WIND_4_SUBBANDS_3_1*(SINT32)s16X[ChOffset+24+5];\
+    s32Temp+=(SINT32)WIND_4_SUBBANDS_3_2*(SINT32)s16X[ChOffset+16+3];\
+    s32Temp2+=(SINT32)WIND_4_SUBBANDS_3_2*(SINT32)s16X[ChOffset+16+5];\
+    s32Temp+=(SINT32)WIND_4_SUBBANDS_3_3*(SINT32)s16X[ChOffset+24+3];\
+    s32Temp2+=(SINT32)WIND_4_SUBBANDS_3_3*(SINT32)s16X[ChOffset+8+5];\
+    s32Temp+=(SINT32)WIND_4_SUBBANDS_3_4*(SINT32)s16X[ChOffset+32+3];\
+    s32Temp2+=(SINT32)WIND_4_SUBBANDS_3_4*(SINT32)s16X[ChOffset+5];\
+    s32DCTY[3]=(SINT32)(s32Temp);\
+    s32DCTY[5]=(SINT32)(s32Temp2);\
+}
+
+#define WINDOW_ACCU_4_4 \
+{\
+    s32Temp=(SINT32)WIND_4_SUBBANDS_4_0*(SINT32)(s16X[ChOffset+4]+s16X[ChOffset+4+32]);\
+    s32Temp+=(SINT32)WIND_4_SUBBANDS_4_1*(SINT32)(s16X[ChOffset+4+8]+s16X[ChOffset+4+24]);\
+    s32Temp+=(SINT32)WIND_4_SUBBANDS_4_2*(SINT32)s16X[ChOffset+4+16];\
+    s32DCTY[4]=(SINT32)(s32Temp);\
+}
+#endif
+#define WINDOW_PARTIAL_4 \
+{\
+    WINDOW_ACCU_4_0;     WINDOW_ACCU_4_1_7;\
+    WINDOW_ACCU_4_2_6;   WINDOW_ACCU_4_3_5;\
+    WINDOW_ACCU_4_4;\
+}
+
+#define WINDOW_PARTIAL_8 \
+{\
+    WINDOW_ACCU_8_0;         WINDOW_ACCU_8_1_15;\
+    WINDOW_ACCU_8_2_14;      WINDOW_ACCU_8_3_13;\
+    WINDOW_ACCU_8_4_12;      WINDOW_ACCU_8_5_11;\
+    WINDOW_ACCU_8_6_10;      WINDOW_ACCU_8_7_9;\
+    WINDOW_ACCU_8_8;\
+}
+#else
+#if (SBC_IS_64_MULT_IN_WINDOW_ACCU == TRUE)
+#define WINDOW_ACCU_4(i) \
+{\
+    s64Temp=((SINT64)gas32CoeffFor4SBs[i] * (SINT64)s16X[ChOffset+i]);                                    \
+    s64Temp+=((SINT64)gas32CoeffFor4SBs[(i+8)] * (SINT64)s16X[ChOffset+i+8]);                                    \
+    s64Temp+=((SINT64)gas32CoeffFor4SBs[(i+16)] * (SINT64)s16X[ChOffset+i+16]);                                    \
+    s64Temp+=((SINT64)gas32CoeffFor4SBs[(i+24)] * (SINT64)s16X[ChOffset+i+24]);                                    \
+    s64Temp+=((SINT64)gas32CoeffFor4SBs[(i+32)] * (SINT64)s16X[ChOffset+i+32]);                                    \
+    s32DCTY[i]=(SINT32)(s64Temp>>16);\
+	/*printf("s32DCTY4: 0x%x \n", s32DCTY[i]);*/\
+}
+#else
+#define WINDOW_ACCU_4(i) \
+{\
+    s32DCTY[i]=(gas32CoeffFor4SBs[i * 2] * s16X[ChOffset+i])                                    \
+            +  (((SINT32)(UINT16)(gas32CoeffFor4SBs[(i * 2) + 1]) * s16X[ChOffset+i]) >> 16);   \
+    s32DCTY[i]+=(gas32CoeffFor4SBs[(i+8) * 2] * s16X[ChOffset+i+8])                                    \
+            +  (((SINT32)(UINT16)(gas32CoeffFor4SBs[((i+8) * 2) + 1]) * s16X[ChOffset+i+8]) >> 16);   \
+    s32DCTY[i]+=(gas32CoeffFor4SBs[(i+16) * 2] * s16X[ChOffset+i+16])                                    \
+            +  (((SINT32)(UINT16)(gas32CoeffFor4SBs[((i+16) * 2) + 1]) * s16X[ChOffset+i+16]) >> 16);   \
+    s32DCTY[i]+=(gas32CoeffFor4SBs[(i+24) * 2] * s16X[ChOffset+i+24])                                    \
+            +  (((SINT32)(UINT16)(gas32CoeffFor4SBs[((i+24) * 2) + 1]) * s16X[ChOffset+i+24]) >> 16);   \
+    s32DCTY[i]+=(gas32CoeffFor4SBs[(i+32) * 2] * s16X[ChOffset+i+32])                                    \
+            +  (((SINT32)(UINT16)(gas32CoeffFor4SBs[((i+32) * 2) + 1]) * s16X[ChOffset+i+32]) >> 16);   \
+}
+#endif
+#define WINDOW_PARTIAL_4 \
+{\
+    WINDOW_ACCU_4(0);      WINDOW_ACCU_4(1);\
+    WINDOW_ACCU_4(2);      WINDOW_ACCU_4(3);\
+    WINDOW_ACCU_4(4);      WINDOW_ACCU_4(5);\
+    WINDOW_ACCU_4(6);      WINDOW_ACCU_4(7);\
+}
+
+#if (SBC_IS_64_MULT_IN_WINDOW_ACCU == TRUE)
+#define WINDOW_ACCU_8(i) \
+{\
+    s64Temp = ((((SINT64)gas32CoeffFor8SBs[i]      * (SINT64)s16X[ChOffset+i]   )));                 \
+    s64Temp+= ((((SINT64)gas32CoeffFor8SBs[(i+16)] * (SINT64)s16X[ChOffset+i+16])));                 \
+    s64Temp+= ((((SINT64)gas32CoeffFor8SBs[(i+32)] * (SINT64)s16X[ChOffset+i+32])));                 \
+    s64Temp+= ((((SINT64)gas32CoeffFor8SBs[(i+48)] * (SINT64)s16X[ChOffset+i+48])));                 \
+    s64Temp+= ((((SINT64)gas32CoeffFor8SBs[(i+64)] * (SINT64)s16X[ChOffset+i+64])));                 \
+	/*printf("s32DCTY8: %d= 0x%x * %d\n", s32DCTY[i], gas32CoeffFor8SBs[i], s16X[ChOffset+i]);*/     \
+    s32DCTY[i]=(SINT32)(s64Temp>>16);\
+}
+#else
+#define WINDOW_ACCU_8(i) \
+{\
+    s32DCTY[i]=(gas32CoeffFor8SBs[i * 2] * s16X[ChOffset+i])                                    \
+            +  (((SINT32)(UINT16)(gas32CoeffFor8SBs[(i * 2) + 1]) * s16X[ChOffset+i]) >> 16);   \
+    s32DCTY[i]+=(gas32CoeffFor8SBs[(i+16) * 2] * s16X[ChOffset+i+16])                                    \
+            +  (((SINT32)(UINT16)(gas32CoeffFor8SBs[((i+16) * 2) + 1]) * s16X[ChOffset+i+16]) >> 16);   \
+    s32DCTY[i]+=(gas32CoeffFor8SBs[(i+32) * 2] * s16X[ChOffset+i+32])                                    \
+            +  (((SINT32)(UINT16)(gas32CoeffFor8SBs[((i+32) * 2) + 1]) * s16X[ChOffset+i+32]) >> 16);   \
+    s32DCTY[i]+=(gas32CoeffFor8SBs[(i+48) * 2] * s16X[ChOffset+i+48])                                    \
+            +  (((SINT32)(UINT16)(gas32CoeffFor8SBs[((i+48) * 2) + 1]) * s16X[ChOffset+i+48]) >> 16);   \
+    s32DCTY[i]+=(gas32CoeffFor8SBs[(i+64) * 2] * s16X[ChOffset+i+64])                                    \
+            +  (((SINT32)(UINT16)(gas32CoeffFor8SBs[((i+64) * 2) + 1]) * s16X[ChOffset+i+64]) >> 16);   \
+	/*printf("s32DCTY8: %d = 0x%4x%4x * %d\n", s32DCTY[i], gas32CoeffFor8SBs[i * 2], (gas32CoeffFor8SBs[(i * 2) + 1]), s16X[ChOffset+i]);*/\
+    /*s32DCTY[i]=(SINT32)(s64Temp>>16);*/\
+}
+#endif
+#define WINDOW_PARTIAL_8 \
+{\
+    WINDOW_ACCU_8(0);      WINDOW_ACCU_8(1);\
+    WINDOW_ACCU_8(2);      WINDOW_ACCU_8(3);\
+    WINDOW_ACCU_8(4);      WINDOW_ACCU_8(5);\
+    WINDOW_ACCU_8(6);      WINDOW_ACCU_8(7);\
+    WINDOW_ACCU_8(8);      WINDOW_ACCU_8(9);\
+    WINDOW_ACCU_8(10);     WINDOW_ACCU_8(11);\
+    WINDOW_ACCU_8(12);     WINDOW_ACCU_8(13);\
+    WINDOW_ACCU_8(14);     WINDOW_ACCU_8(15);\
+}
+#endif
+#endif
+
+static SINT16 ShiftCounter=0;
+extern SINT16 EncMaxShiftCounter;
+/****************************************************************************
+* SbcAnalysisFilter - performs Analysis of the input audio stream
+*
+* RETURNS : N/A
+*/
+void SbcAnalysisFilter4(SBC_ENC_PARAMS *pstrEncParams)
+{
+    SINT16 *ps16PcmBuf;
+    SINT32 *ps32SbBuf;
+    SINT32  s32Blk,s32Ch;
+    SINT32  s32NumOfChannels, s32NumOfBlocks;
+    SINT32 i,*ps32X,*ps32X2;
+    SINT32 Offset,Offset2,ChOffset;
+#if (SBC_ARM_ASM_OPT==TRUE)
+    register SINT32 s32Hi,s32Hi2;
+#else
+#if (SBC_IPAQ_OPT==TRUE)
+#if (SBC_IS_64_MULT_IN_WINDOW_ACCU == TRUE)
+    register SINT64 s64Temp,s64Temp2;
+#else
+	register SINT32 s32Temp,s32Temp2;
+#endif
+#else
+
+#if (SBC_IS_64_MULT_IN_WINDOW_ACCU == TRUE)
+    SINT64 s64Temp;
+#endif
+
+#endif
+#endif
+
+    s32NumOfChannels = pstrEncParams->s16NumOfChannels;
+    s32NumOfBlocks   = pstrEncParams->s16NumOfBlocks;
+
+    ps16PcmBuf = pstrEncParams->ps16NextPcmBuffer;
+
+    ps32SbBuf  = pstrEncParams->s32SbBuffer;
+    Offset2=(SINT32)(EncMaxShiftCounter+40);
+    for (s32Blk=0; s32Blk <s32NumOfBlocks; s32Blk++)
+    {
+        Offset=(SINT32)(EncMaxShiftCounter-ShiftCounter);
+        /* Store new samples */
+        if (s32NumOfChannels==1)
+        {
+            s16X[3+Offset] = *ps16PcmBuf;   ps16PcmBuf++;
+            s16X[2+Offset] = *ps16PcmBuf;   ps16PcmBuf++;
+            s16X[1+Offset] = *ps16PcmBuf;   ps16PcmBuf++;
+            s16X[0+Offset] = *ps16PcmBuf;   ps16PcmBuf++;
+        }
+        else
+        {
+            s16X[3+Offset] = *ps16PcmBuf;        ps16PcmBuf++;
+            s16X[Offset2+3+Offset] = *ps16PcmBuf;     ps16PcmBuf++;
+            s16X[2+Offset] = *ps16PcmBuf;        ps16PcmBuf++;
+            s16X[Offset2+2+Offset] = *ps16PcmBuf;     ps16PcmBuf++;
+            s16X[1+Offset] = *ps16PcmBuf;        ps16PcmBuf++;
+            s16X[Offset2+1+Offset] = *ps16PcmBuf;     ps16PcmBuf++;
+            s16X[0+Offset] = *ps16PcmBuf;        ps16PcmBuf++;
+            s16X[Offset2+0+Offset] = *ps16PcmBuf;     ps16PcmBuf++;
+        }
+        for (s32Ch=0;s32Ch<s32NumOfChannels;s32Ch++)
+        {
+            ChOffset=s32Ch*Offset2+Offset;
+
+            WINDOW_PARTIAL_4
+
+            SBC_FastIDCT4(s32DCTY, ps32SbBuf);
+
+            ps32SbBuf +=SUB_BANDS_4;
+        }
+        if (s32NumOfChannels==1)
+        {
+            if (ShiftCounter>=EncMaxShiftCounter)
+            {
+                SHIFTUP_X4;
+                ShiftCounter=0;
+            }
+            else
+            {
+                ShiftCounter+=SUB_BANDS_4;
+            }
+        }
+        else
+        {
+            if (ShiftCounter>=EncMaxShiftCounter)
+            {
+                SHIFTUP_X4_2;
+                ShiftCounter=0;
+            }
+            else
+            {
+                ShiftCounter+=SUB_BANDS_4;
+            }
+        }
+    }
+}
+
+/* //////////////////////////////////////////////////////////////////////////////////////////////////////////////////// */
+void SbcAnalysisFilter8 (SBC_ENC_PARAMS *pstrEncParams)
+{
+    SINT16 *ps16PcmBuf;
+    SINT32 *ps32SbBuf;
+    SINT32  s32Blk,s32Ch;                                     /* counter for block*/
+    SINT32 Offset,Offset2;
+    SINT32  s32NumOfChannels, s32NumOfBlocks;
+    SINT32 i,*ps32X,*ps32X2;
+    SINT32 ChOffset;
+#if (SBC_ARM_ASM_OPT==TRUE)
+    register SINT32 s32Hi,s32Hi2;
+#else
+#if (SBC_IPAQ_OPT==TRUE)
+#if (SBC_IS_64_MULT_IN_WINDOW_ACCU == TRUE)
+    register SINT64 s64Temp,s64Temp2;
+#else
+	register SINT32 s32Temp,s32Temp2;
+#endif
+#else
+#if (SBC_IS_64_MULT_IN_WINDOW_ACCU == TRUE)
+    SINT64 s64Temp;
+#endif
+#endif
+#endif
+
+    s32NumOfChannels = pstrEncParams->s16NumOfChannels;
+    s32NumOfBlocks   = pstrEncParams->s16NumOfBlocks;
+
+    ps16PcmBuf = pstrEncParams->ps16NextPcmBuffer;
+
+    ps32SbBuf  = pstrEncParams->s32SbBuffer;
+    Offset2=(SINT32)(EncMaxShiftCounter+80);
+    for (s32Blk=0; s32Blk <s32NumOfBlocks; s32Blk++)
+    {
+        Offset=(SINT32)(EncMaxShiftCounter-ShiftCounter);
+        /* Store new samples */
+        if (s32NumOfChannels==1)
+        {
+            s16X[7+Offset] = *ps16PcmBuf;   ps16PcmBuf++;
+            s16X[6+Offset] = *ps16PcmBuf;   ps16PcmBuf++;
+            s16X[5+Offset] = *ps16PcmBuf;   ps16PcmBuf++;
+            s16X[4+Offset] = *ps16PcmBuf;   ps16PcmBuf++;
+            s16X[3+Offset] = *ps16PcmBuf;   ps16PcmBuf++;
+            s16X[2+Offset] = *ps16PcmBuf;   ps16PcmBuf++;
+            s16X[1+Offset] = *ps16PcmBuf;   ps16PcmBuf++;
+            s16X[0+Offset] = *ps16PcmBuf;   ps16PcmBuf++;
+        }
+        else
+        {
+            s16X[7+Offset] = *ps16PcmBuf;        ps16PcmBuf++;
+            s16X[Offset2+7+Offset] = *ps16PcmBuf;     ps16PcmBuf++;
+            s16X[6+Offset] = *ps16PcmBuf;        ps16PcmBuf++;
+            s16X[Offset2+6+Offset] = *ps16PcmBuf;     ps16PcmBuf++;
+            s16X[5+Offset] = *ps16PcmBuf;        ps16PcmBuf++;
+            s16X[Offset2+5+Offset] = *ps16PcmBuf;     ps16PcmBuf++;
+            s16X[4+Offset] = *ps16PcmBuf;        ps16PcmBuf++;
+            s16X[Offset2+4+Offset] = *ps16PcmBuf;     ps16PcmBuf++;
+            s16X[3+Offset] = *ps16PcmBuf;        ps16PcmBuf++;
+            s16X[Offset2+3+Offset] = *ps16PcmBuf;     ps16PcmBuf++;
+            s16X[2+Offset] = *ps16PcmBuf;        ps16PcmBuf++;
+            s16X[Offset2+2+Offset] = *ps16PcmBuf;     ps16PcmBuf++;
+            s16X[1+Offset] = *ps16PcmBuf;        ps16PcmBuf++;
+            s16X[Offset2+1+Offset] = *ps16PcmBuf;     ps16PcmBuf++;
+            s16X[0+Offset] = *ps16PcmBuf;        ps16PcmBuf++;
+            s16X[Offset2+0+Offset] = *ps16PcmBuf;     ps16PcmBuf++;
+        }
+        for (s32Ch=0;s32Ch<s32NumOfChannels;s32Ch++)
+        {
+            ChOffset=s32Ch*Offset2+Offset;
+
+            WINDOW_PARTIAL_8
+
+            SBC_FastIDCT8 (s32DCTY, ps32SbBuf);
+
+            ps32SbBuf +=SUB_BANDS_8;
+        }
+        if (s32NumOfChannels==1)
+        {
+            if (ShiftCounter>=EncMaxShiftCounter)
+            {
+                SHIFTUP_X8;
+                ShiftCounter=0;
+            }
+            else
+            {
+                ShiftCounter+=SUB_BANDS_8;
+            }
+        }
+        else
+        {
+            if (ShiftCounter>=EncMaxShiftCounter)
+            {
+                SHIFTUP_X8_2;
+                ShiftCounter=0;
+            }
+            else
+            {
+                ShiftCounter+=SUB_BANDS_8;
+            }
+        }
+    }
+}
+
+void SbcAnalysisInit (void)
+{
+    memset(s16X,0,ENC_VX_BUFFER_SIZE*sizeof(SINT16));
+    ShiftCounter=0;
+}
diff --git a/rtkbt/code/bt/embdrv/sbc/encoder/srce/sbc_dct.c b/rtkbt/code/bt/embdrv/sbc/encoder/srce/sbc_dct.c
new file mode 100755
index 0000000..0f6c9d3
--- /dev/null
+++ b/rtkbt/code/bt/embdrv/sbc/encoder/srce/sbc_dct.c
@@ -0,0 +1,245 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  source file for fast dct operations
+ *
+ ******************************************************************************/
+
+#include "sbc_encoder.h"
+#include "sbc_enc_func_declare.h"
+#include "sbc_dct.h"
+
+
+
+/*******************************************************************************
+**
+** Function         SBC_FastIDCT8
+**
+** Description      implementation of fast DCT algorithm by Feig and Winograd
+**
+**
+** Returns          y = dct(pInVect)
+**
+**
+*******************************************************************************/
+
+#if (SBC_IS_64_MULT_IN_IDCT == FALSE)
+#define SBC_COS_PI_SUR_4            (0x00005a82)  /* ((0x8000) * 0.7071)     = cos(pi/4) */
+#define SBC_COS_PI_SUR_8            (0x00007641)  /* ((0x8000) * 0.9239)     = (cos(pi/8)) */
+#define SBC_COS_3PI_SUR_8           (0x000030fb)  /* ((0x8000) * 0.3827)     = (cos(3*pi/8)) */
+#define SBC_COS_PI_SUR_16           (0x00007d8a)  /* ((0x8000) * 0.9808))     = (cos(pi/16)) */
+#define SBC_COS_3PI_SUR_16          (0x00006a6d)  /* ((0x8000) * 0.8315))     = (cos(3*pi/16)) */
+#define SBC_COS_5PI_SUR_16          (0x0000471c)  /* ((0x8000) * 0.5556))     = (cos(5*pi/16)) */
+#define SBC_COS_7PI_SUR_16          (0x000018f8)  /* ((0x8000) * 0.1951))     = (cos(7*pi/16)) */
+#define SBC_IDCT_MULT(a,b,c) SBC_MULT_32_16_SIMPLIFIED(a,b,c)
+#else
+#define SBC_COS_PI_SUR_4            (0x5A827999)  /* ((0x80000000) * 0.707106781)      = (cos(pi/4)   ) */
+#define SBC_COS_PI_SUR_8            (0x7641AF3C)  /* ((0x80000000) * 0.923879533)      = (cos(pi/8)   ) */
+#define SBC_COS_3PI_SUR_8           (0x30FBC54D)  /* ((0x80000000) * 0.382683432)      = (cos(3*pi/8) ) */
+#define SBC_COS_PI_SUR_16           (0x7D8A5F3F)  /* ((0x80000000) * 0.98078528 ))     = (cos(pi/16)  ) */
+#define SBC_COS_3PI_SUR_16          (0x6A6D98A4)  /* ((0x80000000) * 0.831469612))     = (cos(3*pi/16)) */
+#define SBC_COS_5PI_SUR_16          (0x471CECE6)  /* ((0x80000000) * 0.555570233))     = (cos(5*pi/16)) */
+#define SBC_COS_7PI_SUR_16          (0x18F8B83C)  /* ((0x80000000) * 0.195090322))     = (cos(7*pi/16)) */
+#define SBC_IDCT_MULT(a,b,c) SBC_MULT_32_32(a,b,c)
+#endif /* SBC_IS_64_MULT_IN_IDCT */
+
+#if (SBC_FAST_DCT == FALSE)
+extern const SINT16 gas16AnalDCTcoeff8[];
+extern const SINT16 gas16AnalDCTcoeff4[];
+#endif
+
+void SBC_FastIDCT8(SINT32 *pInVect, SINT32 *pOutVect)
+{
+#if (SBC_FAST_DCT == TRUE)
+#if (SBC_ARM_ASM_OPT==TRUE)
+#else
+#if (SBC_IPAQ_OPT==TRUE)
+#if (SBC_IS_64_MULT_IN_IDCT == TRUE)
+    SINT64 s64Temp;
+#endif
+#else
+#if (SBC_IS_64_MULT_IN_IDCT == TRUE)
+    SINT32 s32HiTemp;
+#else
+    SINT32 s32In2Temp;
+    register SINT32 s32In1Temp;
+#endif
+#endif
+#endif
+
+    register SINT32 x0, x1, x2, x3, x4, x5, x6, x7,temp;
+    SINT32 res_even[4], res_odd[4];
+    /*x0= (pInVect[4])/2 ;*/
+    SBC_IDCT_MULT(SBC_COS_PI_SUR_4,pInVect[4], x0);
+    /*printf("x0 0x%x = %d = %d * %d\n", x0, x0, SBC_COS_PI_SUR_4, pInVect[4]);*/
+
+    x1 = (pInVect[3] + pInVect[5])  >>1;
+    x2 = (pInVect[2] + pInVect[6])  >>1;
+    x3 = (pInVect[1] + pInVect[7])  >>1;
+    x4 = (pInVect[0] + pInVect[8])  >>1;
+    x5 = (pInVect[9] - pInVect[15]) >>1;
+    x6 = (pInVect[10] - pInVect[14])>>1;
+    x7 = (pInVect[11] - pInVect[13])>>1;
+
+    /* 2-point IDCT of x0 and x4 as in (11) */
+    temp = x0 ;
+    SBC_IDCT_MULT(SBC_COS_PI_SUR_4, ( x0 + x4 ), x0);          /*x0 = ( x0 + x4 ) * cos(1*pi/4) ; */
+    SBC_IDCT_MULT(SBC_COS_PI_SUR_4, ( temp - x4 ), x4);        /*x4 = ( temp - x4 ) * cos(1*pi/4) ; */
+
+    /* rearrangement of x2 and x6 as in (15) */
+    x2 -=x6;
+    x6 <<= 1 ;
+
+    /* 2-point IDCT of x2 and x6 and post-multiplication as in (15) */
+    SBC_IDCT_MULT(SBC_COS_PI_SUR_4,x6, x6); /*x6 = x6 * cos(1*pi/4) ; */
+    temp = x2 ;
+    SBC_IDCT_MULT(SBC_COS_PI_SUR_8,( x2 + x6 ), x2); /*x2 = ( x2 + x6 ) * cos(1*pi/8) ; */
+    SBC_IDCT_MULT(SBC_COS_3PI_SUR_8,( temp - x6 ), x6); /*x6 = ( temp - x6 ) * cos(3*pi/8) ;*/
+
+    /* 4-point IDCT of x0,x2,x4 and x6 as in (11) */
+    res_even[ 0 ] = x0 + x2 ;
+    res_even[ 1 ] = x4 + x6 ;
+    res_even[ 2 ] = x4 - x6 ;
+    res_even[ 3 ] = x0 - x2 ;
+
+
+    /* rearrangement of x1,x3,x5,x7 as in (15) */
+    x7 <<= 1 ;
+    x5 = ( x5 <<1 ) - x7 ;
+    x3 = ( x3 <<1 ) - x5 ;
+    x1 -= x3 >>1 ;
+
+    /* two-dimensional IDCT of x1 and x5 */
+    SBC_IDCT_MULT(SBC_COS_PI_SUR_4, x5, x5);          /*x5 = x5 * cos(1*pi/4) ; */
+    temp = x1 ;
+    x1 = x1 + x5 ;
+    x5 = temp - x5 ;
+
+    /* rearrangement of x3 and x7 as in (15) */
+    x3 -= x7;
+    x7 <<= 1 ;
+    SBC_IDCT_MULT(SBC_COS_PI_SUR_4, x7, x7);          /*x7 = x7 * cos(1*pi/4) ; */
+
+    /* 2-point IDCT of x3 and x7 and post-multiplication as in (15) */
+    temp = x3 ;
+    SBC_IDCT_MULT( SBC_COS_PI_SUR_8,( x3 + x7 ), x3);          /*x3 = ( x3 + x7 ) * cos(1*pi/8)  ; */
+    SBC_IDCT_MULT( SBC_COS_3PI_SUR_8,( temp - x7 ), x7);          /*x7 = ( temp - x7 ) * cos(3*pi/8) ;*/
+
+    /* 4-point IDCT of x1,x3,x5 and x7 and post multiplication by diagonal matrix as in (14) */
+    SBC_IDCT_MULT((SBC_COS_PI_SUR_16),   ( x1 + x3 ) ,   res_odd[0]); /*res_odd[ 0 ] = ( x1 + x3 ) * cos(1*pi/16) ; */
+    SBC_IDCT_MULT((SBC_COS_3PI_SUR_16),  ( x5 + x7 ) ,   res_odd[1]); /*res_odd[ 1 ] = ( x5 + x7 ) * cos(3*pi/16) ; */
+    SBC_IDCT_MULT((SBC_COS_5PI_SUR_16),  ( x5 - x7 ) ,   res_odd[2]); /*res_odd[ 2 ] = ( x5 - x7 ) * cos(5*pi/16) ; */
+    SBC_IDCT_MULT((SBC_COS_7PI_SUR_16),  ( x1 - x3 ) ,  res_odd[3]); /*res_odd[ 3 ] = ( x1 - x3 ) * cos(7*pi/16) ; */
+
+    /* additions and subtractions as in (9) */
+    pOutVect[0] = (res_even[ 0 ] + res_odd[ 0 ])  ;
+    pOutVect[1] = (res_even[ 1 ] + res_odd[ 1 ])  ;
+    pOutVect[2] = (res_even[ 2 ] + res_odd[ 2 ])  ;
+    pOutVect[3] = (res_even[ 3 ] + res_odd[ 3 ])  ;
+    pOutVect[7] = (res_even[ 0 ] - res_odd[ 0 ])  ;
+    pOutVect[6] = (res_even[ 1 ] - res_odd[ 1 ])  ;
+    pOutVect[5] = (res_even[ 2 ] - res_odd[ 2 ])  ;
+    pOutVect[4] = (res_even[ 3 ] - res_odd[ 3 ])  ;
+#else
+    UINT8 Index, k;
+    SINT32 temp;
+	/*Calculate 4 subband samples by matrixing*/
+    for(Index=0; Index<8; Index++)
+    {
+        temp = 0;
+        for(k=0; k<16; k++)
+        {
+            /*temp += (SINT32)(((SINT64)M[(Index*strEncParams->numOfSubBands*2)+k] * Y[k]) >> 16 );*/
+            temp += (gas16AnalDCTcoeff8[(Index*8*2)+k] * (pInVect[k] >> 16));
+            temp += ((gas16AnalDCTcoeff8[(Index*8*2)+k] * (pInVect[k] & 0xFFFF)) >> 16);
+        }
+        pOutVect[Index] = temp;
+    }
+#endif
+/*    printf("pOutVect: 0x%x;0x%x;0x%x;0x%x;0x%x;0x%x;0x%x;0x%x\n",\
+        pOutVect[0],pOutVect[1],pOutVect[2],pOutVect[3],pOutVect[4],pOutVect[5],pOutVect[6],pOutVect[7]);*/
+}
+
+/*******************************************************************************
+**
+** Function         SBC_FastIDCT4
+**
+** Description      implementation of fast DCT algorithm by Feig and Winograd
+**
+**
+** Returns          y = dct(x0)
+**
+**
+*******************************************************************************/
+void SBC_FastIDCT4(SINT32 *pInVect, SINT32 *pOutVect)
+{
+#if (SBC_FAST_DCT == TRUE)
+#if (SBC_ARM_ASM_OPT==TRUE)
+#else
+#if (SBC_IPAQ_OPT==TRUE)
+#if (SBC_IS_64_MULT_IN_IDCT == TRUE)
+    SINT64 s64Temp;
+#endif
+#else
+#if (SBC_IS_64_MULT_IN_IDCT == TRUE)
+    SINT32 s32HiTemp;
+#else
+    UINT16 s32In2Temp;
+    SINT32 s32In1Temp;
+#endif
+#endif
+#endif
+    SINT32 temp,x2;
+    SINT32 tmp[8];
+
+    x2=pInVect[2]>>1;
+    temp=(pInVect[0]+pInVect[4]);
+    SBC_IDCT_MULT((SBC_COS_PI_SUR_4>>1), temp , tmp[0]);
+    tmp[1]=x2-tmp[0];
+    tmp[0]+=x2;
+    temp=(pInVect[1]+pInVect[3]);
+    SBC_IDCT_MULT((SBC_COS_3PI_SUR_8>>1), temp , tmp[3]);
+    SBC_IDCT_MULT((SBC_COS_PI_SUR_8>>1), temp , tmp[2]);
+    temp=(pInVect[5]-pInVect[7]);
+    SBC_IDCT_MULT((SBC_COS_3PI_SUR_8>>1), temp , tmp[5]);
+    SBC_IDCT_MULT((SBC_COS_PI_SUR_8>>1), temp , tmp[4]);
+    tmp[6]=tmp[2]+tmp[5];
+    tmp[7]=tmp[3]-tmp[4];
+    pOutVect[0] = (tmp[0]+tmp[6]);
+    pOutVect[1] = (tmp[1]+tmp[7]);
+    pOutVect[2] = (tmp[1]-tmp[7]);
+    pOutVect[3] = (tmp[0]-tmp[6]);
+#else
+    UINT8 Index, k;
+    SINT32 temp;
+	/*Calculate 4 subband samples by matrixing*/
+    for(Index=0; Index<4; Index++)
+    {
+        temp = 0;
+        for(k=0; k<8; k++)
+        {
+            /*temp += (SINT32)(((SINT64)M[(Index*strEncParams->numOfSubBands*2)+k] * Y[k]) >> 16 ); */
+            temp += (gas16AnalDCTcoeff4[(Index*4*2)+k] * (pInVect[k] >> 16));
+            temp += ((gas16AnalDCTcoeff4[(Index*4*2)+k] * (pInVect[k] & 0xFFFF)) >> 16);
+        }
+        pOutVect[Index] = temp;
+    }
+#endif
+}
diff --git a/rtkbt/code/bt/embdrv/sbc/encoder/srce/sbc_dct_coeffs.c b/rtkbt/code/bt/embdrv/sbc/encoder/srce/sbc_dct_coeffs.c
new file mode 100755
index 0000000..c450c27
--- /dev/null
+++ b/rtkbt/code/bt/embdrv/sbc/encoder/srce/sbc_dct_coeffs.c
@@ -0,0 +1,200 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains the coefficient table used for DCT computation in
+ *  analysis.
+ *
+ ******************************************************************************/
+
+#include "sbc_encoder.h"
+/*DCT coeff for 4 sub-band case.*/
+#if (SBC_FAST_DCT == FALSE)
+const SINT16 gas16AnalDCTcoeff4[] =
+{
+	(SINT16)(0.7071*32768),
+	(SINT16)(0.9239*32768),
+	(SINT16)(1.0000*32767),
+	(SINT16)(0.9239*32768),
+	(SINT16)(0.7071*32768),
+	(SINT16)(0.3827*32768),
+	(SINT16)(0.0000*32768),
+	(SINT16)(-0.3827*32768),
+
+	(SINT16)(-0.7071*32768),
+	(SINT16)(0.3827*32768),
+	(SINT16)(1.0000*32767),
+	(SINT16)(0.3827*32768),
+	(SINT16)(-0.7071*32768),
+	(SINT16)(-0.9239*32768),
+	(SINT16)(-0.0000*32768),
+	(SINT16)(0.9239*32768),
+
+	(SINT16)(-0.7071*32768),
+	(SINT16)(-0.3827*32768),
+	(SINT16)(1.0000*32767),
+	(SINT16)(-0.3827*32768),
+	(SINT16)(-0.7071*32768),
+	(SINT16)(0.9239*32768),
+	(SINT16)(0.0000*32768),
+	(SINT16)(-0.9239*32768),
+
+	(SINT16)(0.7071*32768),
+	(SINT16)(-0.9239*32768),
+	(SINT16)(1.0000*32767),
+	(SINT16)(-0.9239*32768),
+	(SINT16)(0.7071*32768),
+	(SINT16)(-0.3827*32768),
+	(SINT16)(-0.0000*32768),
+	(SINT16)(0.3827*32768)
+};
+
+/*DCT coeff for 8 sub-band case.*/
+const SINT16 gas16AnalDCTcoeff8[] =
+{
+	(SINT16)(0.7071*32768),
+	(SINT16)(0.8315*32768),
+	(SINT16)(0.9239*32768),
+	(SINT16)(0.9808*32768),
+	(SINT16)(1.0000*32767),
+	(SINT16)(0.9808*32768),
+	(SINT16)(0.9239*32768),
+	(SINT16)(0.8315*32768),
+	(SINT16)(0.7071*32768),
+	(SINT16)(0.5556*32768),
+	(SINT16)(0.3827*32768),
+	(SINT16)(0.1951*32768),
+	(SINT16)(0.0000*32768),
+	(SINT16)(-0.1951*32768),
+	(SINT16)(-0.3827*32768),
+	(SINT16)(-0.5556*32768),
+	(SINT16)(-0.7071*32768),
+	(SINT16)(-0.1951*32768),
+	(SINT16)(0.3827*32768),
+	(SINT16)(0.8315*32768),
+	(SINT16)(1.0000*32767),
+	(SINT16)(0.8315*32768),
+	(SINT16)(0.3827*32768),
+	(SINT16)(-0.1951*32768),
+	(SINT16)(-0.7071*32768),
+	(SINT16)(-0.9808*32768),
+	(SINT16)(-0.9239*32768),
+	(SINT16)(-0.5556*32768),
+	(SINT16)(-0.0000*32768),
+	(SINT16)(0.5556*32768),
+	(SINT16)(0.9239*32768),
+	(SINT16)(0.9808*32768),
+	(SINT16)(-0.7071*32768),
+	(SINT16)(-0.9808*32768),
+	(SINT16)(-0.3827*32768),
+	(SINT16)(0.5556*32768),
+	(SINT16)(1.0000*32767),
+	(SINT16)(0.5556*32768),
+	(SINT16)(-0.3827*32768),
+	(SINT16)(-0.9808*32768),
+	(SINT16)(-0.7071*32768),
+	(SINT16)(0.1951*32768),
+	(SINT16)(0.9239*32768),
+	(SINT16)(0.8315*32768),
+	(SINT16)(0.0000*32768),
+	(SINT16)(-0.8315*32768),
+	(SINT16)(-0.9239*32768),
+	(SINT16)(-0.1951*32768),
+	(SINT16)(0.7071*32768),
+	(SINT16)(-0.5556*32768),
+	(SINT16)(-0.9239*32768),
+	(SINT16)(0.1951*32768),
+	(SINT16)(1.0000*32767),
+	(SINT16)(0.1951*32768),
+	(SINT16)(-0.9239*32768),
+	(SINT16)(-0.5556*32768),
+	(SINT16)(0.7071*32768),
+	(SINT16)(0.8315*32768),
+	(SINT16)(-0.3827*32768),
+	(SINT16)(-0.9808*32768),
+	(SINT16)(-0.0000*32768),
+	(SINT16)(0.9808*32768),
+	(SINT16)(0.3827*32768),
+	(SINT16)(-0.8315*32768),
+	(SINT16)(0.7071*32768),
+	(SINT16)(0.5556*32768),
+	(SINT16)(-0.9239*32768),
+	(SINT16)(-0.1951*32768),
+	(SINT16)(1.0000*32767),
+	(SINT16)(-0.1951*32768),
+	(SINT16)(-0.9239*32768),
+	(SINT16)(0.5556*32768),
+	(SINT16)(0.7071*32768),
+	(SINT16)(-0.8315*32768),
+	(SINT16)(-0.3827*32768),
+	(SINT16)(0.9808*32768),
+	(SINT16)(0.0000*32768),
+	(SINT16)(-0.9808*32768),
+	(SINT16)(0.3827*32768),
+	(SINT16)(0.8315*32768),
+	(SINT16)(-0.7071*32768),
+	(SINT16)(0.9808*32768),
+	(SINT16)(-0.3827*32768),
+	(SINT16)(-0.5556*32768),
+	(SINT16)(1.0000*32767),
+	(SINT16)(-0.5556*32768),
+	(SINT16)(-0.3827*32768),
+	(SINT16)(0.9808*32768),
+	(SINT16)(-0.7071*32768),
+	(SINT16)(-0.1951*32768),
+	(SINT16)(0.9239*32768),
+	(SINT16)(-0.8315*32768),
+	(SINT16)(-0.0000*32768),
+	(SINT16)(0.8315*32768),
+	(SINT16)(-0.9239*32768),
+	(SINT16)(0.1951*32768),
+	(SINT16)(-0.7071*32768),
+	(SINT16)(0.1951*32768),
+	(SINT16)(0.3827*32768),
+	(SINT16)(-0.8315*32768),
+	(SINT16)(1.0000*32767),
+	(SINT16)(-0.8315*32768),
+	(SINT16)(0.3827*32768),
+	(SINT16)(0.1951*32768),
+	(SINT16)(-0.7071*32768),
+	(SINT16)(0.9808*32768),
+	(SINT16)(-0.9239*32768),
+	(SINT16)(0.5556*32768),
+	(SINT16)(-0.0000*32768),
+	(SINT16)(-0.5556*32768),
+	(SINT16)(0.9239*32768),
+	(SINT16)(-0.9808*32768),
+	(SINT16)(0.7071*32768),
+	(SINT16)(-0.8315*32768),
+	(SINT16)(0.9239*32768),
+	(SINT16)(-0.9808*32768),
+	(SINT16)(1.0000*32767),
+	(SINT16)(-0.9808*32768),
+	(SINT16)(0.9239*32768),
+	(SINT16)(-0.8315*32768),
+	(SINT16)(0.7071*32768),
+	(SINT16)(-0.5556*32768),
+	(SINT16)(0.3827*32768),
+	(SINT16)(-0.1951*32768),
+	(SINT16)(-0.0000*32768),
+	(SINT16)(0.1951*32768),
+	(SINT16)(-0.3827*32768),
+	(SINT16)(0.5556*32768)
+};
+#endif
diff --git a/rtkbt/code/bt/embdrv/sbc/encoder/srce/sbc_enc_bit_alloc_mono.c b/rtkbt/code/bt/embdrv/sbc/encoder/srce/sbc_enc_bit_alloc_mono.c
new file mode 100755
index 0000000..c033e24
--- /dev/null
+++ b/rtkbt/code/bt/embdrv/sbc/encoder/srce/sbc_enc_bit_alloc_mono.c
@@ -0,0 +1,199 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains the code for bit allocation algorithm. It calculates
+ *  the number of bits required for the encoded stream of data.
+ *
+ ******************************************************************************/
+
+/*Includes*/
+#include "sbc_encoder.h"
+#include "sbc_enc_func_declare.h"
+
+/*global arrays*/
+const SINT16 sbc_enc_as16Offset4[4][4] = {  {-1, 0, 0, 0}, {-2, 0, 0, 1},
+                                    {-2, 0, 0, 1}, {-2, 0, 0, 1} };
+const SINT16 sbc_enc_as16Offset8[4][8] = {  {-2, 0, 0, 0, 0, 0, 0, 1},
+                                    {-3, 0, 0, 0, 0, 0, 1, 2},
+                                    {-4, 0, 0, 0, 0, 0, 1, 2},
+                                    {-4, 0, 0, 0, 0, 0, 1, 2} };
+
+/****************************************************************************
+* BitAlloc - Calculates the required number of bits for the given scale factor
+* and the number of subbands.
+*
+* RETURNS : N/A
+*/
+
+void sbc_enc_bit_alloc_mono(SBC_ENC_PARAMS *pstrCodecParams)
+{
+    SINT32 s32MaxBitNeed;   /*to store the max bits needed per sb*/
+    SINT32 s32BitCount;     /*the used number of bits*/
+    SINT32 s32SliceCount;   /*to store hwo many slices can be put in bitpool*/
+    SINT32 s32BitSlice;     /*number of bitslices in bitpool*/
+    SINT32 s32Sb;           /*counter for sub-band*/
+    SINT32 s32Ch;           /*counter for channel*/
+    SINT16 *ps16BitNeed;    /*temp memory to store required number of bits*/
+    SINT32 s32Loudness;     /*used in Loudness calculation*/
+    SINT16 *ps16GenBufPtr;
+    SINT16 *ps16GenArrPtr;
+    SINT16 *ps16GenTabPtr;
+    SINT32  s32NumOfSubBands = pstrCodecParams->s16NumOfSubBands;
+
+    ps16BitNeed = pstrCodecParams->s16ScartchMemForBitAlloc;
+
+    for (s32Ch = 0; s32Ch < pstrCodecParams->s16NumOfChannels; s32Ch++)
+    {
+        ps16GenBufPtr = ps16BitNeed + s32Ch*s32NumOfSubBands;
+        ps16GenArrPtr = pstrCodecParams->as16Bits+s32Ch*SBC_MAX_NUM_OF_SUBBANDS;
+
+        /* bitneed values are derived from scale factor */
+        if (pstrCodecParams->s16AllocationMethod == SBC_SNR)
+        {
+            ps16BitNeed = pstrCodecParams->as16ScaleFactor;
+            ps16GenBufPtr = ps16BitNeed + s32Ch * s32NumOfSubBands;
+        }
+        else
+        {
+            ps16GenBufPtr = ps16BitNeed + s32Ch*s32NumOfSubBands;
+            if(s32NumOfSubBands == 4)
+            {
+                ps16GenTabPtr = (SINT16 *)
+                    sbc_enc_as16Offset4[pstrCodecParams->s16SamplingFreq];
+            }
+            else
+            {
+                ps16GenTabPtr = (SINT16 *)
+                    sbc_enc_as16Offset8[pstrCodecParams->s16SamplingFreq];
+            }
+            for(s32Sb=0; s32Sb<s32NumOfSubBands; s32Sb++)
+            {
+                if(pstrCodecParams->as16ScaleFactor[s32Ch*s32NumOfSubBands+s32Sb] == 0)
+                    *(ps16GenBufPtr) = -5;
+                else
+                {
+                    s32Loudness =
+                        (SINT32)(pstrCodecParams->as16ScaleFactor[s32Ch*s32NumOfSubBands+s32Sb]
+                                                            - *ps16GenTabPtr);
+                    if(s32Loudness > 0)
+                        *(ps16GenBufPtr) = (SINT16)(s32Loudness >>1);
+                    else
+                        *(ps16GenBufPtr) = (SINT16)s32Loudness;
+                }
+                ps16GenBufPtr++;
+                ps16GenTabPtr++;
+            }
+
+        }
+
+        /* max bitneed index is searched*/
+        s32MaxBitNeed = 0;
+        ps16GenBufPtr = ps16BitNeed + s32Ch*s32NumOfSubBands;
+        for(s32Sb=0; s32Sb<s32NumOfSubBands; s32Sb++)
+        {
+            if( *(ps16GenBufPtr) > s32MaxBitNeed)
+                s32MaxBitNeed = *(ps16GenBufPtr);
+
+            ps16GenBufPtr++;
+        }
+        ps16GenBufPtr = ps16BitNeed + s32Ch*s32NumOfSubBands;
+        /*iterative process to find hwo many bitslices fit into the bitpool*/
+        s32BitSlice = s32MaxBitNeed + 1;
+        s32BitCount = pstrCodecParams->s16BitPool;
+        s32SliceCount = 0;
+        do
+        {
+            s32BitSlice --;
+            s32BitCount -= s32SliceCount;
+            s32SliceCount = 0;
+
+            for(s32Sb=0; s32Sb<s32NumOfSubBands; s32Sb++)
+            {
+                if( (((*ps16GenBufPtr-s32BitSlice)< 16) && (*ps16GenBufPtr-s32BitSlice) >= 1))
+                {
+                    if((*ps16GenBufPtr-s32BitSlice) == 1)
+                        s32SliceCount+=2;
+                    else
+                        s32SliceCount++;
+                }
+                ps16GenBufPtr++;
+
+            }/*end of for*/
+            ps16GenBufPtr = ps16BitNeed + s32Ch*s32NumOfSubBands;
+        }while(s32BitCount-s32SliceCount>0);
+
+        if(s32BitCount == 0)
+        {
+            s32BitCount -= s32SliceCount;
+            s32BitSlice --;
+        }
+
+        /*Bits are distributed until the last bitslice is reached*/
+        ps16GenArrPtr = pstrCodecParams->as16Bits+s32Ch*s32NumOfSubBands;
+        ps16GenBufPtr = ps16BitNeed + s32Ch*s32NumOfSubBands;
+        for(s32Sb=0; s32Sb<s32NumOfSubBands; s32Sb++)
+        {
+            if(*(ps16GenBufPtr) < s32BitSlice+2)
+                *(ps16GenArrPtr) = 0;
+            else
+                *(ps16GenArrPtr) = ((*(ps16GenBufPtr)-s32BitSlice)<16) ?
+                    (SINT16)(*(ps16GenBufPtr)-s32BitSlice) : 16;
+
+            ps16GenBufPtr++;
+            ps16GenArrPtr++;
+        }
+        ps16GenArrPtr = pstrCodecParams->as16Bits+s32Ch*s32NumOfSubBands;
+        ps16GenBufPtr = ps16BitNeed + s32Ch*s32NumOfSubBands;
+        /*the remaining bits are allocated starting at subband 0*/
+        s32Sb=0;
+        while( (s32BitCount > 0) && (s32Sb < s32NumOfSubBands) )
+        {
+            if( (*(ps16GenArrPtr) >= 2) && (*(ps16GenArrPtr) < 16) )
+            {
+                (*(ps16GenArrPtr))++;
+                s32BitCount--;
+            }
+            else if( (*(ps16GenBufPtr) == s32BitSlice+1) &&
+                (s32BitCount > 1) )
+            {
+                *(ps16GenArrPtr) = 2;
+                s32BitCount -= 2;
+            }
+            s32Sb++;
+            ps16GenArrPtr++;
+            ps16GenBufPtr++;
+        }
+        ps16GenArrPtr = pstrCodecParams->as16Bits+s32Ch*s32NumOfSubBands;
+
+
+        s32Sb=0;
+        while( (s32BitCount > 0) && (s32Sb < s32NumOfSubBands) )
+        {
+            if( *(ps16GenArrPtr) < 16)
+            {
+                (*(ps16GenArrPtr))++;
+                s32BitCount--;
+            }
+            s32Sb++;
+            ps16GenArrPtr++;
+        }
+    }
+}
+/*End of BitAlloc() function*/
diff --git a/rtkbt/code/bt/embdrv/sbc/encoder/srce/sbc_enc_bit_alloc_ste.c b/rtkbt/code/bt/embdrv/sbc/encoder/srce/sbc_enc_bit_alloc_ste.c
new file mode 100755
index 0000000..75d1630
--- /dev/null
+++ b/rtkbt/code/bt/embdrv/sbc/encoder/srce/sbc_enc_bit_alloc_ste.c
@@ -0,0 +1,212 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains the code for bit allocation algorithm. It calculates
+ *  the number of bits required for the encoded stream of data.
+ *
+ ******************************************************************************/
+
+/*Includes*/
+#include "sbc_encoder.h"
+#include "sbc_enc_func_declare.h"
+
+/*global arrays*/
+extern const SINT16 sbc_enc_as16Offset4[4][4];
+extern const SINT16 sbc_enc_as16Offset8[4][8];
+
+/****************************************************************************
+* BitAlloc - Calculates the required number of bits for the given scale factor
+* and the number of subbands.
+*
+* RETURNS : N/A
+*/
+
+void sbc_enc_bit_alloc_ste(SBC_ENC_PARAMS *pstrCodecParams)
+{
+	/* CAUTIOM -> mips optim for arm 32 require to use SINT32 instead of SINT16 */
+	/* Do not change variable type or name */
+    SINT32 s32MaxBitNeed;   /*to store the max bits needed per sb*/
+    SINT32 s32BitCount;     /*the used number of bits*/
+    SINT32 s32SliceCount;   /*to store hwo many slices can be put in bitpool*/
+    SINT32 s32BitSlice;     /*number of bitslices in bitpool*/
+    SINT32 s32Sb;           /*counter for sub-band*/
+    SINT32 s32Ch;           /*counter for channel*/
+    SINT16 *ps16BitNeed;    /*temp memory to store required number of bits*/
+    SINT32 s32Loudness;     /*used in Loudness calculation*/
+    SINT16 *ps16GenBufPtr,*pas16ScaleFactor;
+    SINT16 *ps16GenArrPtr;
+    SINT16 *ps16GenTabPtr;
+    SINT32  s32NumOfSubBands = pstrCodecParams->s16NumOfSubBands;
+    SINT32  s32BitPool       = pstrCodecParams->s16BitPool;
+
+    /* bitneed values are derived from scale factor */
+    if (pstrCodecParams->s16AllocationMethod == SBC_SNR)
+    {
+        ps16BitNeed   = pstrCodecParams->as16ScaleFactor;
+        s32MaxBitNeed = pstrCodecParams->s16MaxBitNeed;
+    }
+    else
+    {
+        ps16BitNeed   = pstrCodecParams->s16ScartchMemForBitAlloc;
+        pas16ScaleFactor=pstrCodecParams->as16ScaleFactor;
+        s32MaxBitNeed = 0;
+        ps16GenBufPtr = ps16BitNeed;
+        for (s32Ch = 0; s32Ch < 2; s32Ch++)
+        {
+            if (s32NumOfSubBands == 4)
+            {
+                ps16GenTabPtr = (SINT16 *)sbc_enc_as16Offset4[pstrCodecParams->s16SamplingFreq];
+            }
+            else
+            {
+                ps16GenTabPtr = (SINT16 *)sbc_enc_as16Offset8[pstrCodecParams->s16SamplingFreq];
+            }
+
+            for (s32Sb = 0; s32Sb < s32NumOfSubBands; s32Sb++)
+            {
+                if (*pas16ScaleFactor == 0)
+                    *ps16GenBufPtr = -5;
+                else
+                {
+                    s32Loudness = (SINT32)(*pas16ScaleFactor - *ps16GenTabPtr);
+
+                    if (s32Loudness > 0)
+                        *ps16GenBufPtr = (SINT16)(s32Loudness >> 1);
+                    else
+                        *ps16GenBufPtr = (SINT16)s32Loudness;
+                }
+
+                if (*ps16GenBufPtr > s32MaxBitNeed)
+                    s32MaxBitNeed = *ps16GenBufPtr;
+                pas16ScaleFactor++;
+                ps16GenBufPtr++;
+                ps16GenTabPtr++;
+            }
+        }
+    }
+
+    /* iterative process to find out hwo many bitslices fit into the bitpool */
+    s32BitSlice = s32MaxBitNeed + 1;
+    s32BitCount = s32BitPool;
+    s32SliceCount = 0;
+    do
+    {
+        s32BitSlice --;
+        s32BitCount -= s32SliceCount;
+        s32SliceCount = 0;
+        ps16GenBufPtr = ps16BitNeed;
+
+        for (s32Sb = 0; s32Sb < 2*s32NumOfSubBands; s32Sb++)
+        {
+            if ( (*ps16GenBufPtr >= s32BitSlice + 1) && (*ps16GenBufPtr < s32BitSlice + 16) )
+            {
+                if (*(ps16GenBufPtr) == s32BitSlice+1)
+                    s32SliceCount += 2;
+                else
+                    s32SliceCount++;
+            }
+            ps16GenBufPtr++;
+        }
+    } while (s32BitCount-s32SliceCount>0);
+
+    if (s32BitCount-s32SliceCount == 0)
+    {
+        s32BitCount -= s32SliceCount;
+        s32BitSlice --;
+    }
+
+    /* Bits are distributed until the last bitslice is reached */
+    ps16GenBufPtr = ps16BitNeed;
+    ps16GenArrPtr = pstrCodecParams->as16Bits;
+    for (s32Ch = 0; s32Ch < 2; s32Ch++)
+    {
+        for (s32Sb = 0; s32Sb < s32NumOfSubBands; s32Sb++)
+        {
+            if (*ps16GenBufPtr < s32BitSlice+2)
+                *ps16GenArrPtr = 0;
+            else
+                *ps16GenArrPtr = ((*(ps16GenBufPtr)-s32BitSlice) < 16) ?
+                                        (SINT16)(*(ps16GenBufPtr)-s32BitSlice):16;
+            ps16GenBufPtr++;
+            ps16GenArrPtr++;
+        }
+    }
+
+    /* the remaining bits are allocated starting at subband 0 */
+    s32Ch=0;
+    s32Sb=0;
+    ps16GenBufPtr = ps16BitNeed;
+    ps16GenArrPtr -= 2*s32NumOfSubBands;
+
+    while ( (s32BitCount > 0) && (s32Sb < s32NumOfSubBands) )
+    {
+        if ( (*(ps16GenArrPtr) >= 2) && (*(ps16GenArrPtr) < 16) )
+        {
+            (*(ps16GenArrPtr))++;
+            s32BitCount--;
+        }
+        else if ((*ps16GenBufPtr == s32BitSlice+1) && (s32BitCount > 1))
+        {
+            *(ps16GenArrPtr) = 2;
+            s32BitCount -= 2;
+        }
+        if(s32Ch == 1)
+        {
+            s32Ch = 0;
+            s32Sb++;
+            ps16GenBufPtr = ps16BitNeed+s32Sb;
+            ps16GenArrPtr = pstrCodecParams->as16Bits+s32Sb;
+
+        }
+        else
+        {
+            s32Ch =1;
+            ps16GenBufPtr = ps16BitNeed+s32NumOfSubBands+s32Sb;
+            ps16GenArrPtr = pstrCodecParams->as16Bits+s32NumOfSubBands+s32Sb;
+        }
+    }
+
+    s32Ch=0;
+    s32Sb=0;
+    ps16GenArrPtr = pstrCodecParams->as16Bits;
+
+    while ((s32BitCount >0) && (s32Sb < s32NumOfSubBands))
+    {
+        if(*(ps16GenArrPtr) < 16)
+        {
+            (*(ps16GenArrPtr))++;
+            s32BitCount--;
+        }
+        if (s32Ch == 1)
+        {
+            s32Ch = 0;
+            s32Sb++;
+            ps16GenArrPtr = pstrCodecParams->as16Bits+s32Sb;
+        }
+        else
+        {
+            s32Ch = 1;
+            ps16GenArrPtr = pstrCodecParams->as16Bits+s32NumOfSubBands+s32Sb;
+        }
+    }
+}
+
+/*End of BitAlloc() function*/
+
diff --git a/rtkbt/code/bt/embdrv/sbc/encoder/srce/sbc_enc_coeffs.c b/rtkbt/code/bt/embdrv/sbc/encoder/srce/sbc_enc_coeffs.c
new file mode 100755
index 0000000..2ecfbfd
--- /dev/null
+++ b/rtkbt/code/bt/embdrv/sbc/encoder/srce/sbc_enc_coeffs.c
@@ -0,0 +1,319 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains the Windowing coeffs for synthesis filter
+ *
+ ******************************************************************************/
+
+#include "sbc_encoder.h"
+
+#if (SBC_ARM_ASM_OPT==FALSE && SBC_IPAQ_OPT==FALSE)
+#if (SBC_IS_64_MULT_IN_WINDOW_ACCU ==  FALSE)
+/*Window coeff for 4 sub band case*/
+const SINT16 gas32CoeffFor4SBs[] =
+{
+    (SINT16)((SINT32)0x00000000 >> 16),	(SINT16)0x00000000,
+	(SINT16)((SINT32)0x001194E6 >> 16),	(SINT16)0x001194E6,
+	(SINT16)((SINT32)0x0030E2D3 >> 16),	(SINT16)0x0030E2D3,
+	(SINT16)((SINT32)0x00599403 >> 16),	(SINT16)0x00599403,
+	(SINT16)((SINT32)0x007DBCC8 >> 16),	(SINT16)0x007DBCC8,
+	(SINT16)((SINT32)0x007F88E4 >> 16),	(SINT16)0x007F88E4,
+	(SINT16)((SINT32)0x003D239B >> 16),	(SINT16)0x003D239B,
+	(SINT16)((SINT32)0xFF9BB9D5 >> 16),	(SINT16)0xFF9BB9D5,
+
+	(SINT16)((SINT32)0x01659F45 >> 16),	(SINT16)0x01659F45,
+	(SINT16)((SINT32)0x029DBAA3 >> 16),	(SINT16)0x029DBAA3,
+	(SINT16)((SINT32)0x03B23341 >> 16),	(SINT16)0x03B23341,
+	(SINT16)((SINT32)0x041EEE40 >> 16),	(SINT16)0x041EEE40,
+	(SINT16)((SINT32)0x034FEE2C >> 16),	(SINT16)0x034FEE2C,
+	(SINT16)((SINT32)0x00C8F2BC >> 16),	(SINT16)0x00C8F2BC,
+	(SINT16)((SINT32)0xFC4F91D4 >> 16),	(SINT16)0xFC4F91D4,
+	(SINT16)((SINT32)0xF60FAF37 >> 16),	(SINT16)0xF60FAF37,
+
+	(SINT16)((SINT32)0x115B1ED2 >> 16),	(SINT16)0x115B1ED2,
+	(SINT16)((SINT32)0x18F55C90 >> 16),	(SINT16)0x18F55C90,
+	(SINT16)((SINT32)0x1F91CA46 >> 16),	(SINT16)0x1F91CA46,
+	(SINT16)((SINT32)0x2412F251 >> 16),	(SINT16)0x2412F251,
+	(SINT16)((SINT32)0x25AC1FF2 >> 16),	(SINT16)0x25AC1FF2,
+	(SINT16)((SINT32)0x2412F251 >> 16),	(SINT16)0x2412F251,
+	(SINT16)((SINT32)0x1F91CA46 >> 16),	(SINT16)0x1F91CA46,
+	(SINT16)((SINT32)0x18F55C90 >> 16),	(SINT16)0x18F55C90,
+
+	(SINT16)((SINT32)0xEEA4E12E >> 16),	(SINT16)0xEEA4E12E,
+	(SINT16)((SINT32)0xF60FAF37 >> 16),	(SINT16)0xF60FAF37,
+	(SINT16)((SINT32)0xFC4F91D4 >> 16),	(SINT16)0xFC4F91D4,
+	(SINT16)((SINT32)0x00C8F2BC >> 16),	(SINT16)0x00C8F2BC,
+	(SINT16)((SINT32)0x034FEE2C >> 16),	(SINT16)0x034FEE2C,
+	(SINT16)((SINT32)0x041EEE40 >> 16),	(SINT16)0x041EEE40,
+	(SINT16)((SINT32)0x03B23341 >> 16),	(SINT16)0x03B23341,
+	(SINT16)((SINT32)0x029DBAA3 >> 16),	(SINT16)0x029DBAA3,
+
+	(SINT16)((SINT32)0xFE9A60BB >> 16),	(SINT16)0xFE9A60BB,
+	(SINT16)((SINT32)0xFF9BB9D5 >> 16),	(SINT16)0xFF9BB9D5,
+	(SINT16)((SINT32)0x003D239B >> 16),	(SINT16)0x003D239B,
+	(SINT16)((SINT32)0x007F88E4 >> 16),	(SINT16)0x007F88E4,
+	(SINT16)((SINT32)0x007DBCC8 >> 16),	(SINT16)0x007DBCC8,
+	(SINT16)((SINT32)0x00599403 >> 16),	(SINT16)0x00599403,
+	(SINT16)((SINT32)0x0030E2D3 >> 16),	(SINT16)0x0030E2D3,
+	(SINT16)((SINT32)0x001194E6 >> 16),	(SINT16)0x001194E6
+};
+
+/*Window coeff for 8 sub band case*/
+const SINT16 gas32CoeffFor8SBs[] =
+{
+    (SINT16)((SINT32)0x00000000 >>16),	(SINT16)0x00000000,
+	(SINT16)((SINT32)0x00052173 >>16),	(SINT16)0x00052173,
+	(SINT16)((SINT32)0x000B3F71 >>16),	(SINT16)0x000B3F71,
+	(SINT16)((SINT32)0x00122C7D >>16),	(SINT16)0x00122C7D,
+	(SINT16)((SINT32)0x001AFF89 >>16),	(SINT16)0x001AFF89,
+	(SINT16)((SINT32)0x00255A62 >>16),	(SINT16)0x00255A62,
+	(SINT16)((SINT32)0x003060F4 >>16),	(SINT16)0x003060F4,
+	(SINT16)((SINT32)0x003A72E7 >>16),	(SINT16)0x003A72E7,
+
+	(SINT16)((SINT32)0x0041EC6A >>16),	(SINT16)0x0041EC6A,  /* 8 */
+	(SINT16)((SINT32)0x0044EF48 >>16),	(SINT16)0x0044EF48,
+	(SINT16)((SINT32)0x00415B75 >>16),	(SINT16)0x00415B75,
+	(SINT16)((SINT32)0x0034F8B6 >>16),	(SINT16)0x0034F8B6,
+	(SINT16)((SINT32)0x001D8FD2 >>16),	(SINT16)0x001D8FD2,
+	(SINT16)((SINT32)0xFFFA2413 >>16),	(SINT16)0xFFFA2413,
+	(SINT16)((SINT32)0xFFC9F10E >>16),	(SINT16)0xFFC9F10E,
+	(SINT16)((SINT32)0xFF8D6793 >>16),	(SINT16)0xFF8D6793,
+
+	(SINT16)((SINT32)0x00B97348 >>16),	(SINT16)0x00B97348,  /* 16 */
+	(SINT16)((SINT32)0x01071B96 >>16),	(SINT16)0x01071B96,
+	(SINT16)((SINT32)0x0156B3CA >>16),	(SINT16)0x0156B3CA,
+	(SINT16)((SINT32)0x01A1B38B >>16),	(SINT16)0x01A1B38B,
+	(SINT16)((SINT32)0x01E0224C >>16),	(SINT16)0x01E0224C,
+	(SINT16)((SINT32)0x0209291F >>16),	(SINT16)0x0209291F,
+	(SINT16)((SINT32)0x02138653 >>16),	(SINT16)0x02138653,
+	(SINT16)((SINT32)0x01F5F424 >>16),	(SINT16)0x01F5F424,
+
+	(SINT16)((SINT32)0x01A7ECEF >>16),	(SINT16)0x01A7ECEF, /* 24 */
+	(SINT16)((SINT32)0x01223EBA >>16),	(SINT16)0x01223EBA,
+	(SINT16)((SINT32)0x005FD0FF >>16),	(SINT16)0x005FD0FF,
+	(SINT16)((SINT32)0xFF5EEB73 >>16),	(SINT16)0xFF5EEB73,
+	(SINT16)((SINT32)0xFE20435D >>16),	(SINT16)0xFE20435D,
+	(SINT16)((SINT32)0xFCA86E7E >>16),	(SINT16)0xFCA86E7E,
+	(SINT16)((SINT32)0xFAFF95FC >>16),	(SINT16)0xFAFF95FC,
+	(SINT16)((SINT32)0xF9312891 >>16),	(SINT16)0xF9312891,
+
+	(SINT16)((SINT32)0x08B4307A >>16),	(SINT16)0x08B4307A, /* 32 */
+	(SINT16)((SINT32)0x0A9F3E9A >>16),	(SINT16)0x0A9F3E9A,
+	(SINT16)((SINT32)0x0C7D59B6 >>16),	(SINT16)0x0C7D59B6,
+	(SINT16)((SINT32)0x0E3BB16F >>16),	(SINT16)0x0E3BB16F,
+	(SINT16)((SINT32)0x0FC721F9 >>16),	(SINT16)0x0FC721F9,
+	(SINT16)((SINT32)0x110ECEF0 >>16),	(SINT16)0x110ECEF0,
+	(SINT16)((SINT32)0x120435FA >>16),	(SINT16)0x120435FA,
+	(SINT16)((SINT32)0x129C226F >>16),	(SINT16)0x129C226F,
+
+	(SINT16)((SINT32)0x12CF6C75 >>16),	(SINT16)0x12CF6C75, /* 40 */
+	(SINT16)((SINT32)0x129C226F >>16),	(SINT16)0x129C226F,
+	(SINT16)((SINT32)0x120435FA >>16),	(SINT16)0x120435FA,
+	(SINT16)((SINT32)0x110ECEF0 >>16),	(SINT16)0x110ECEF0,
+	(SINT16)((SINT32)0x0FC721F9 >>16),	(SINT16)0x0FC721F9,
+	(SINT16)((SINT32)0x0E3BB16F >>16),	(SINT16)0x0E3BB16F,
+	(SINT16)((SINT32)0x0C7D59B6 >>16),	(SINT16)0x0C7D59B6,
+	(SINT16)((SINT32)0x0A9F3E9A >>16),	(SINT16)0x0A9F3E9A,
+
+	(SINT16)((SINT32)0xF74BCF86 >>16),	(SINT16)0xF74BCF86, /* 48 */
+	(SINT16)((SINT32)0xF9312891 >>16),	(SINT16)0xF9312891,
+	(SINT16)((SINT32)0xFAFF95FC >>16),	(SINT16)0xFAFF95FC,
+	(SINT16)((SINT32)0xFCA86E7E >>16),	(SINT16)0xFCA86E7E,
+	(SINT16)((SINT32)0xFE20435D >>16),	(SINT16)0xFE20435D,
+	(SINT16)((SINT32)0xFF5EEB73 >>16),	(SINT16)0xFF5EEB73,
+	(SINT16)((SINT32)0x005FD0FF >>16),	(SINT16)0x005FD0FF,
+	(SINT16)((SINT32)0x01223EBA >>16),	(SINT16)0x01223EBA,
+
+	(SINT16)((SINT32)0x01A7ECEF >>16),	(SINT16)0x01A7ECEF, /* 56 */
+	(SINT16)((SINT32)0x01F5F424 >>16),	(SINT16)0x01F5F424,
+	(SINT16)((SINT32)0x02138653 >>16),	(SINT16)0x02138653,
+	(SINT16)((SINT32)0x0209291F >>16),	(SINT16)0x0209291F,
+	(SINT16)((SINT32)0x01E0224C >>16),	(SINT16)0x01E0224C,
+	(SINT16)((SINT32)0x01A1B38B >>16),	(SINT16)0x01A1B38B,
+	(SINT16)((SINT32)0x0156B3CA >>16),	(SINT16)0x0156B3CA,
+	(SINT16)((SINT32)0x01071B96 >>16),	(SINT16)0x01071B96,
+
+	(SINT16)((SINT32)0xFF468CB8 >>16),	(SINT16)0xFF468CB8, /* 64 */
+	(SINT16)((SINT32)0xFF8D6793 >>16),	(SINT16)0xFF8D6793,
+	(SINT16)((SINT32)0xFFC9F10E >>16),	(SINT16)0xFFC9F10E,
+	(SINT16)((SINT32)0xFFFA2413 >>16),	(SINT16)0xFFFA2413,
+	(SINT16)((SINT32)0x001D8FD2 >>16),	(SINT16)0x001D8FD2,
+	(SINT16)((SINT32)0x0034F8B6 >>16),	(SINT16)0x0034F8B6,
+	(SINT16)((SINT32)0x00415B75 >>16),	(SINT16)0x00415B75,
+	(SINT16)((SINT32)0x0044EF48 >>16),	(SINT16)0x0044EF48,
+
+	(SINT16)((SINT32)0x0041EC6A >>16),	(SINT16)0x0041EC6A, /* 72 */
+	(SINT16)((SINT32)0x003A72E7 >>16),	(SINT16)0x003A72E7,
+	(SINT16)((SINT32)0x003060F4 >>16),	(SINT16)0x003060F4,
+	(SINT16)((SINT32)0x00255A62 >>16),	(SINT16)0x00255A62,
+	(SINT16)((SINT32)0x001AFF89 >>16),	(SINT16)0x001AFF89,
+	(SINT16)((SINT32)0x00122C7D >>16),	(SINT16)0x00122C7D,
+	(SINT16)((SINT32)0x000B3F71 >>16),	(SINT16)0x000B3F71,
+	(SINT16)((SINT32)0x00052173 >>16),	(SINT16)0x00052173
+};
+
+#else
+
+/*Window coeff for 4 sub band case*/
+const SINT32 gas32CoeffFor4SBs[] =
+{
+    (SINT32)0x00000000,
+	(SINT32)0x001194E6,
+	(SINT32)0x0030E2D3,
+	(SINT32)0x00599403,
+	(SINT32)0x007DBCC8,
+	(SINT32)0x007F88E4,
+	(SINT32)0x003D239B,
+	(SINT32)0xFF9BB9D5,
+
+	(SINT32)0x01659F45,
+	(SINT32)0x029DBAA3,
+	(SINT32)0x03B23341,
+	(SINT32)0x041EEE40,
+	(SINT32)0x034FEE2C,
+	(SINT32)0x00C8F2BC,
+	(SINT32)0xFC4F91D4,
+	(SINT32)0xF60FAF37,
+
+	(SINT32)0x115B1ED2,
+	(SINT32)0x18F55C90,
+	(SINT32)0x1F91CA46,
+	(SINT32)0x2412F251,
+	(SINT32)0x25AC1FF2,
+	(SINT32)0x2412F251,
+	(SINT32)0x1F91CA46,
+	(SINT32)0x18F55C90,
+
+	(SINT32)0xEEA4E12E,
+	(SINT32)0xF60FAF37,
+	(SINT32)0xFC4F91D4,
+	(SINT32)0x00C8F2BC,
+	(SINT32)0x034FEE2C,
+	(SINT32)0x041EEE40,
+	(SINT32)0x03B23341,
+	(SINT32)0x029DBAA3,
+
+	(SINT32)0xFE9A60BB,
+	(SINT32)0xFF9BB9D5,
+	(SINT32)0x003D239B,
+	(SINT32)0x007F88E4,
+	(SINT32)0x007DBCC8,
+	(SINT32)0x00599403,
+	(SINT32)0x0030E2D3,
+	(SINT32)0x001194E6
+};
+
+/*Window coeff for 8 sub band case*/
+const SINT32 gas32CoeffFor8SBs[] =
+{
+    (SINT32)0x00000000,
+	(SINT32)0x00052173,
+	(SINT32)0x000B3F71,
+	(SINT32)0x00122C7D,
+	(SINT32)0x001AFF89,
+	(SINT32)0x00255A62,
+	(SINT32)0x003060F4,
+	(SINT32)0x003A72E7,
+
+	(SINT32)0x0041EC6A,  /* 8 */
+	(SINT32)0x0044EF48,
+	(SINT32)0x00415B75,
+	(SINT32)0x0034F8B6,
+	(SINT32)0x001D8FD2,
+	(SINT32)0xFFFA2413,
+	(SINT32)0xFFC9F10E,
+	(SINT32)0xFF8D6793,
+
+	(SINT32)0x00B97348,  /* 16 */
+	(SINT32)0x01071B96,
+	(SINT32)0x0156B3CA,
+	(SINT32)0x01A1B38B,
+	(SINT32)0x01E0224C,
+	(SINT32)0x0209291F,
+	(SINT32)0x02138653,
+	(SINT32)0x01F5F424,
+
+	(SINT32)0x01A7ECEF, /* 24 */
+	(SINT32)0x01223EBA,
+	(SINT32)0x005FD0FF,
+	(SINT32)0xFF5EEB73,
+	(SINT32)0xFE20435D,
+	(SINT32)0xFCA86E7E,
+	(SINT32)0xFAFF95FC,
+	(SINT32)0xF9312891,
+
+	(SINT32)0x08B4307A, /* 32 */
+	(SINT32)0x0A9F3E9A,
+	(SINT32)0x0C7D59B6,
+	(SINT32)0x0E3BB16F,
+	(SINT32)0x0FC721F9,
+	(SINT32)0x110ECEF0,
+	(SINT32)0x120435FA,
+	(SINT32)0x129C226F,
+
+	(SINT32)0x12CF6C75, /* 40 */
+	(SINT32)0x129C226F,
+	(SINT32)0x120435FA,
+	(SINT32)0x110ECEF0,
+	(SINT32)0x0FC721F9,
+	(SINT32)0x0E3BB16F,
+	(SINT32)0x0C7D59B6,
+	(SINT32)0x0A9F3E9A,
+
+	(SINT32)0xF74BCF86, /* 48 */
+	(SINT32)0xF9312891,
+	(SINT32)0xFAFF95FC,
+	(SINT32)0xFCA86E7E,
+	(SINT32)0xFE20435D,
+	(SINT32)0xFF5EEB73,
+	(SINT32)0x005FD0FF,
+	(SINT32)0x01223EBA,
+
+	(SINT32)0x01A7ECEF, /* 56 */
+	(SINT32)0x01F5F424,
+	(SINT32)0x02138653,
+	(SINT32)0x0209291F,
+	(SINT32)0x01E0224C,
+	(SINT32)0x01A1B38B,
+	(SINT32)0x0156B3CA,
+	(SINT32)0x01071B96,
+
+	(SINT32)0xFF468CB8, /* 64 */
+	(SINT32)0xFF8D6793,
+	(SINT32)0xFFC9F10E,
+	(SINT32)0xFFFA2413,
+	(SINT32)0x001D8FD2,
+	(SINT32)0x0034F8B6,
+	(SINT32)0x00415B75,
+	(SINT32)0x0044EF48,
+
+	(SINT32)0x0041EC6A, /* 72 */
+	(SINT32)0x003A72E7,
+	(SINT32)0x003060F4,
+	(SINT32)0x00255A62,
+	(SINT32)0x001AFF89,
+	(SINT32)0x00122C7D,
+	(SINT32)0x000B3F71,
+	(SINT32)0x00052173
+};
+
+#endif
+#endif
+
diff --git a/rtkbt/code/bt/embdrv/sbc/encoder/srce/sbc_encoder.c b/rtkbt/code/bt/embdrv/sbc/encoder/srce/sbc_encoder.c
new file mode 100755
index 0000000..960c9ce
--- /dev/null
+++ b/rtkbt/code/bt/embdrv/sbc/encoder/srce/sbc_encoder.c
@@ -0,0 +1,306 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  contains code for encoder flow and initalization of encoder
+ *
+ ******************************************************************************/
+
+#include <string.h>
+#include "bt_target.h"
+#include "sbc_encoder.h"
+#include "sbc_enc_func_declare.h"
+
+SINT16 EncMaxShiftCounter;
+
+#if (SBC_JOINT_STE_INCLUDED == TRUE)
+SINT32   s32LRDiff[SBC_MAX_NUM_OF_BLOCKS]    = {0};
+SINT32   s32LRSum[SBC_MAX_NUM_OF_BLOCKS]     = {0};
+#endif
+
+void SBC_Encoder(SBC_ENC_PARAMS *pstrEncParams)
+{
+    SINT32 s32Ch;                               /* counter for ch*/
+    SINT32 s32Sb;                               /* counter for sub-band*/
+    UINT32 u32Count, maxBit = 0;                          /* loop count*/
+    SINT32 s32MaxValue;                         /* temp variable to store max value */
+
+    SINT16 *ps16ScfL;
+    SINT32 *SbBuffer;
+    SINT32 s32Blk;                              /* counter for block*/
+    SINT32  s32NumOfBlocks   = pstrEncParams->s16NumOfBlocks;
+#if (SBC_JOINT_STE_INCLUDED == TRUE)
+    SINT32 s32MaxValue2;
+    UINT32 u32CountSum,u32CountDiff;
+    SINT32 *pSum, *pDiff;
+#endif
+    UINT8  *pu8;
+    register SINT32  s32NumOfSubBands = pstrEncParams->s16NumOfSubBands;
+
+    pstrEncParams->pu8NextPacket = pstrEncParams->pu8Packet;
+
+#if (SBC_NO_PCM_CPY_OPTION == TRUE)
+    pstrEncParams->ps16NextPcmBuffer = pstrEncParams->ps16PcmBuffer;
+#else
+    pstrEncParams->ps16NextPcmBuffer  = pstrEncParams->as16PcmBuffer;
+#endif
+    do
+    {
+        /* SBC ananlysis filter*/
+        if (s32NumOfSubBands == 4)
+            SbcAnalysisFilter4(pstrEncParams);
+        else
+            SbcAnalysisFilter8(pstrEncParams);
+
+        /* compute the scale factor, and save the max */
+        ps16ScfL = pstrEncParams->as16ScaleFactor;
+        s32Ch=pstrEncParams->s16NumOfChannels*s32NumOfSubBands;
+
+            pstrEncParams->ps16NextPcmBuffer+=s32Ch*s32NumOfBlocks; /* in case of multible sbc frame to encode update the pcm pointer */
+
+        for (s32Sb=0; s32Sb<s32Ch; s32Sb++)
+        {
+            SbBuffer=pstrEncParams->s32SbBuffer+s32Sb;
+            s32MaxValue=0;
+            for (s32Blk=s32NumOfBlocks;s32Blk>0;s32Blk--)
+            {
+                if (s32MaxValue<abs32(*SbBuffer))
+                    s32MaxValue=abs32(*SbBuffer);
+                SbBuffer+=s32Ch;
+            }
+
+            u32Count = (s32MaxValue > 0x800000) ? 9 : 0;
+
+            for ( ; u32Count < 15; u32Count++)
+            {
+                if (s32MaxValue <= (SINT32)(0x8000 << u32Count))
+                    break;
+            }
+            *ps16ScfL++ = (SINT16)u32Count;
+
+            if (u32Count > maxBit)
+                maxBit = u32Count;
+        }
+        /* In case of JS processing,check whether to use JS */
+#if (SBC_JOINT_STE_INCLUDED == TRUE)
+        if (pstrEncParams->s16ChannelMode == SBC_JOINT_STEREO)
+        {
+            /* Calculate sum and differance  scale factors for making JS decision   */
+            ps16ScfL = pstrEncParams->as16ScaleFactor ;
+            /* calculate the scale factor of Joint stereo max sum and diff */
+            for (s32Sb = 0; s32Sb < s32NumOfSubBands-1; s32Sb++)
+            {
+                SbBuffer=pstrEncParams->s32SbBuffer+s32Sb;
+                s32MaxValue2=0;
+                s32MaxValue=0;
+                pSum       = s32LRSum;
+                pDiff      = s32LRDiff;
+                for (s32Blk=0;s32Blk<s32NumOfBlocks;s32Blk++)
+                {
+                    *pSum=(*SbBuffer+*(SbBuffer+s32NumOfSubBands))>>1;
+                    if (abs32(*pSum)>s32MaxValue)
+                        s32MaxValue=abs32(*pSum);
+                    pSum++;
+                    *pDiff=(*SbBuffer-*(SbBuffer+s32NumOfSubBands))>>1;
+                    if (abs32(*pDiff)>s32MaxValue2)
+                        s32MaxValue2=abs32(*pDiff);
+                    pDiff++;
+                    SbBuffer+=s32Ch;
+                }
+                u32Count = (s32MaxValue > 0x800000) ? 9 : 0;
+                for ( ; u32Count < 15; u32Count++)
+                {
+                    if (s32MaxValue <= (SINT32)(0x8000 << u32Count))
+                        break;
+                }
+                u32CountSum=u32Count;
+                u32Count = (s32MaxValue2 > 0x800000) ? 9 : 0;
+                for ( ; u32Count < 15; u32Count++)
+                {
+                    if (s32MaxValue2 <= (SINT32)(0x8000 << u32Count))
+                        break;
+                }
+                u32CountDiff=u32Count;
+                if ( (*ps16ScfL + *(ps16ScfL+s32NumOfSubBands)) > (SINT16)(u32CountSum + u32CountDiff) )
+                {
+
+                    if (u32CountSum > maxBit)
+                        maxBit = u32CountSum;
+
+                    if (u32CountDiff > maxBit)
+                        maxBit = u32CountDiff;
+
+                    *ps16ScfL = (SINT16)u32CountSum;
+                    *(ps16ScfL+s32NumOfSubBands) = (SINT16)u32CountDiff;
+
+                    SbBuffer=pstrEncParams->s32SbBuffer+s32Sb;
+                    pSum       = s32LRSum;
+                    pDiff      = s32LRDiff;
+
+                    for (s32Blk = 0; s32Blk < s32NumOfBlocks; s32Blk++)
+                    {
+                        *SbBuffer = *pSum;
+                        *(SbBuffer+s32NumOfSubBands) = *pDiff;
+
+                        SbBuffer += s32NumOfSubBands<<1;
+                        pSum++;
+                        pDiff++;
+                    }
+
+                    pstrEncParams->as16Join[s32Sb] = 1;
+                }
+                else
+                {
+                    pstrEncParams->as16Join[s32Sb] = 0;
+                }
+                ps16ScfL++;
+            }
+            pstrEncParams->as16Join[s32Sb] = 0;
+        }
+#endif
+
+        pstrEncParams->s16MaxBitNeed = (SINT16)maxBit;
+
+        /* bit allocation */
+        if ((pstrEncParams->s16ChannelMode == SBC_STEREO) || (pstrEncParams->s16ChannelMode == SBC_JOINT_STEREO))
+            sbc_enc_bit_alloc_ste(pstrEncParams);
+        else
+            sbc_enc_bit_alloc_mono(pstrEncParams);
+
+        /* save the beginning of the frame. pu8NextPacket is modified in EncPacking() */
+        pu8 = pstrEncParams->pu8NextPacket;
+        /* Quantize the encoded audio */
+        EncPacking(pstrEncParams);
+    }
+    while(--(pstrEncParams->u8NumPacketToEncode));
+
+    pstrEncParams->u8NumPacketToEncode = 1; /* default is one for retrocompatibility purpose */
+
+}
+
+/****************************************************************************
+* InitSbcAnalysisFilt - Initalizes the input data to 0
+*
+* RETURNS : N/A
+*/
+void SBC_Encoder_Init(SBC_ENC_PARAMS *pstrEncParams)
+{
+    UINT16 s16SamplingFreq; /*temp variable to store smpling freq*/
+    SINT16 s16Bitpool;      /*to store bit pool value*/
+    SINT16 s16BitRate;      /*to store bitrate*/
+    SINT16 s16FrameLen;     /*to store frame length*/
+    UINT16 HeaderParams;
+
+    pstrEncParams->u8NumPacketToEncode = 1; /* default is one for retrocompatibility purpose */
+
+    /* Required number of channels */
+    if (pstrEncParams->s16ChannelMode == SBC_MONO)
+        pstrEncParams->s16NumOfChannels = 1;
+    else
+        pstrEncParams->s16NumOfChannels = 2;
+
+    /* Bit pool calculation */
+    if (pstrEncParams->s16SamplingFreq == SBC_sf16000)
+        s16SamplingFreq = 16000;
+    else if (pstrEncParams->s16SamplingFreq == SBC_sf32000)
+        s16SamplingFreq = 32000;
+    else if (pstrEncParams->s16SamplingFreq == SBC_sf44100)
+        s16SamplingFreq = 44100;
+    else
+        s16SamplingFreq = 48000;
+
+    if ( (pstrEncParams->s16ChannelMode == SBC_JOINT_STEREO)
+        ||  (pstrEncParams->s16ChannelMode == SBC_STEREO) )
+    {
+        s16Bitpool = (SINT16)( (pstrEncParams->u16BitRate *
+            pstrEncParams->s16NumOfSubBands * 1000 / s16SamplingFreq)
+            -( (32 + (4 * pstrEncParams->s16NumOfSubBands *
+            pstrEncParams->s16NumOfChannels)
+            + ( (pstrEncParams->s16ChannelMode - 2) *
+            pstrEncParams->s16NumOfSubBands )   )
+            / pstrEncParams->s16NumOfBlocks) );
+
+        s16FrameLen = 4 + (4*pstrEncParams->s16NumOfSubBands*
+            pstrEncParams->s16NumOfChannels)/8
+            + ( ((pstrEncParams->s16ChannelMode - 2) *
+            pstrEncParams->s16NumOfSubBands)
+            + (pstrEncParams->s16NumOfBlocks * s16Bitpool) ) / 8;
+
+        s16BitRate = (8 * s16FrameLen * s16SamplingFreq)
+            / (pstrEncParams->s16NumOfSubBands *
+            pstrEncParams->s16NumOfBlocks * 1000);
+
+        if (s16BitRate > pstrEncParams->u16BitRate)
+            s16Bitpool--;
+
+        if(pstrEncParams->s16NumOfSubBands == 8)
+            pstrEncParams->s16BitPool = (s16Bitpool > 255) ? 255 : s16Bitpool;
+        else
+            pstrEncParams->s16BitPool = (s16Bitpool > 128) ? 128 : s16Bitpool;
+    }
+    else
+    {
+        s16Bitpool = (SINT16)( ((pstrEncParams->s16NumOfSubBands *
+            pstrEncParams->u16BitRate * 1000)
+            / (s16SamplingFreq * pstrEncParams->s16NumOfChannels))
+            -( ( (32 / pstrEncParams->s16NumOfChannels) +
+            (4 * pstrEncParams->s16NumOfSubBands) )
+            /   pstrEncParams->s16NumOfBlocks ) );
+
+        pstrEncParams->s16BitPool = (s16Bitpool >
+            (16 * pstrEncParams->s16NumOfSubBands))
+            ? (16*pstrEncParams->s16NumOfSubBands) : s16Bitpool;
+    }
+
+    if (pstrEncParams->s16BitPool < 0)
+        pstrEncParams->s16BitPool = 0;
+    /* sampling freq */
+    HeaderParams = ((pstrEncParams->s16SamplingFreq & 3)<< 6);
+
+    /* number of blocks*/
+    HeaderParams |= (((pstrEncParams->s16NumOfBlocks -4) & 12) << 2);
+
+    /* channel mode: mono, dual...*/
+    HeaderParams |= ((pstrEncParams->s16ChannelMode & 3)<< 2);
+
+    /* Loudness or SNR */
+    HeaderParams |= ((pstrEncParams->s16AllocationMethod & 1)<< 1);
+    HeaderParams |= ((pstrEncParams->s16NumOfSubBands >> 3) & 1);  /*4 or 8*/
+    pstrEncParams->FrameHeader=HeaderParams;
+
+    if (pstrEncParams->s16NumOfSubBands==4)
+    {
+        if (pstrEncParams->s16NumOfChannels==1)
+            EncMaxShiftCounter=((ENC_VX_BUFFER_SIZE-4*10)>>2)<<2;
+        else
+            EncMaxShiftCounter=((ENC_VX_BUFFER_SIZE-4*10*2)>>3)<<2;
+    }
+    else
+    {
+        if (pstrEncParams->s16NumOfChannels==1)
+            EncMaxShiftCounter=((ENC_VX_BUFFER_SIZE-8*10)>>3)<<3;
+        else
+            EncMaxShiftCounter=((ENC_VX_BUFFER_SIZE-8*10*2)>>4)<<3;
+    }
+
+    APPL_TRACE_EVENT("SBC_Encoder_Init : bitrate %d, bitpool %d",
+            pstrEncParams->u16BitRate, pstrEncParams->s16BitPool);
+
+    SbcAnalysisInit();
+}
diff --git a/rtkbt/code/bt/embdrv/sbc/encoder/srce/sbc_packing.c b/rtkbt/code/bt/embdrv/sbc/encoder/srce/sbc_packing.c
new file mode 100755
index 0000000..bdbefea
--- /dev/null
+++ b/rtkbt/code/bt/embdrv/sbc/encoder/srce/sbc_packing.c
@@ -0,0 +1,274 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains code for packing the Encoded data into bit streams.
+ *
+ ******************************************************************************/
+
+#include "sbc_encoder.h"
+#include "sbc_enc_func_declare.h"
+
+#if (SBC_ARM_ASM_OPT==TRUE)
+#define Mult32(s32In1,s32In2,s32OutLow)                                                 \
+{                                                                                       \
+   __asm                                                                                \
+   {                                                                                    \
+        MUL s32OutLow,s32In1,s32In2;                                                    \
+    }                                                                                   \
+}
+#define Mult64(s32In1, s32In2, s32OutLow, s32OutHi)                                     \
+{                                                                                       \
+    __asm													        					\
+    {														    						\
+        SMULL s32OutLow,s32OutHi,s32In1,s32In2          	    						\
+    }														    						\
+}
+#else
+#define Mult32(s32In1,s32In2,s32OutLow) s32OutLow=(SINT32)s32In1*(SINT32)s32In2;
+#define Mult64(s32In1, s32In2, s32OutLow, s32OutHi)                                     \
+{                                                                                       \
+	s32OutLow   = ((SINT32)(UINT16)s32In1  * (UINT16)s32In2);                           \
+	s32TempVal2 = (SINT32)((s32In1 >> 16) * (UINT16)s32In2);                            \
+	s32Carry    = ( (((UINT32)(s32OutLow)>>16)&0xFFFF) +                                \
+										+ (s32TempVal2 & 0xFFFF) ) >> 16;               \
+	s32OutLow   += (s32TempVal2 << 16);                                                 \
+	s32OutHi     = (s32TempVal2 >> 16) + s32Carry;                                      \
+}
+#endif
+
+void EncPacking(SBC_ENC_PARAMS *pstrEncParams)
+{
+    UINT8       *pu8PacketPtr;                      /* packet ptr*/
+    UINT8 Temp;
+    SINT32      s32Blk;                             /* counter for block*/
+    SINT32      s32Ch;                              /* counter for channel*/
+    SINT32      s32Sb;                              /* counter for sub-band*/
+    SINT32 s32PresentBit;                      /* represents bit to be stored*/
+    /*SINT32 s32LoopCountI;                       loop counter*/
+    SINT32 s32LoopCountJ;                      /* loop counter*/
+    UINT32 u32QuantizedSbValue,u32QuantizedSbValue0; /* temp variable to store quantized sb val*/
+    SINT32 s32LoopCount;                       /* loop counter*/
+    UINT8 u8XoredVal;                         /* to store XORed value in CRC calculation*/
+    UINT8 u8CRC;                              /* to store CRC value*/
+    SINT16 *ps16GenPtr;
+    SINT32 s32NumOfBlocks;
+    SINT32 s32NumOfSubBands = pstrEncParams->s16NumOfSubBands;
+    SINT32 s32NumOfChannels = pstrEncParams->s16NumOfChannels;
+	UINT32 u32SfRaisedToPow2;	/*scale factor raised to power 2*/
+    SINT16 *ps16ScfPtr;
+    SINT32 *ps32SbPtr;
+	UINT16 u16Levels;	/*to store levels*/
+	SINT32 s32Temp1;	/*used in 64-bit multiplication*/
+	SINT32 s32Low;	/*used in 64-bit multiplication*/
+#if (SBC_IS_64_MULT_IN_QUANTIZER==TRUE)
+	SINT32 s32Hi1,s32Low1,s32Carry,s32TempVal2,s32Hi, s32Temp2;
+#endif
+
+    pu8PacketPtr    = pstrEncParams->pu8NextPacket;    /*Initialize the ptr*/
+    *pu8PacketPtr++ = (UINT8)0x9C;  /*Sync word*/
+    *pu8PacketPtr++=(UINT8)(pstrEncParams->FrameHeader);
+
+    *pu8PacketPtr = (UINT8)(pstrEncParams->s16BitPool & 0x00FF);
+    pu8PacketPtr += 2;  /*skip for CRC*/
+
+    /*here it indicate if it is byte boundary or nibble boundary*/
+    s32PresentBit = 8;
+    Temp=0;
+#if (SBC_JOINT_STE_INCLUDED == TRUE)
+    if (pstrEncParams->s16ChannelMode == SBC_JOINT_STEREO)
+    {
+        /* pack join stero parameters */
+        for (s32Sb = 0; s32Sb < s32NumOfSubBands; s32Sb++)
+        {
+            Temp <<= 1;
+            Temp |= pstrEncParams->as16Join[s32Sb];
+        }
+
+        /* pack RFA */
+        if (s32NumOfSubBands == SUB_BANDS_4)
+        {
+            s32PresentBit = 4;
+        }
+        else
+        {
+            *(pu8PacketPtr++)=Temp;
+            Temp = 0;
+        }
+    }
+#endif
+
+    /* Pack Scale factor */
+    ps16GenPtr = pstrEncParams->as16ScaleFactor;
+    s32Sb=s32NumOfChannels*s32NumOfSubBands;
+    /*Temp=*pu8PacketPtr;*/
+    for (s32Ch = s32Sb; s32Ch >0; s32Ch--)
+    {
+        Temp<<= 4;
+        Temp |= *ps16GenPtr++;
+
+        if(s32PresentBit == 4)
+        {
+            s32PresentBit = 8;
+            *(pu8PacketPtr++)=Temp;
+            Temp = 0;
+        }
+        else
+        {
+            s32PresentBit = 4;
+        }
+    }
+
+    /* Pack samples */
+    ps32SbPtr   = pstrEncParams->s32SbBuffer;
+    /*Temp=*pu8PacketPtr;*/
+    s32NumOfBlocks= pstrEncParams->s16NumOfBlocks;
+    for (s32Blk = s32NumOfBlocks-1; s32Blk >=0; s32Blk--)
+    {
+        ps16GenPtr  = pstrEncParams->as16Bits;
+        ps16ScfPtr  = pstrEncParams->as16ScaleFactor;
+        for (s32Ch = s32Sb-1; s32Ch >= 0; s32Ch--)
+        {
+            s32LoopCount = *ps16GenPtr++;
+            if (s32LoopCount != 0)
+            {
+#if (SBC_IS_64_MULT_IN_QUANTIZER==TRUE)
+                /* finding level from reconstruction part of decoder */
+                u32SfRaisedToPow2 = ((UINT32)1 << ((*ps16ScfPtr)+1));
+                u16Levels = (UINT16)(((UINT32)1 << s32LoopCount) - 1);
+
+                /* quantizer */
+                s32Temp1 = (*ps32SbPtr >> 2) + (u32SfRaisedToPow2 << 12);
+                s32Temp2 = u16Levels;
+
+                Mult64 (s32Temp1, s32Temp2, s32Low, s32Hi);
+
+                s32Low1   = s32Low >> ((*ps16ScfPtr)+2);
+                s32Low1  &= ((UINT32)1 << (32 - ((*ps16ScfPtr)+2))) - 1;
+                s32Hi1    = s32Hi << (32 - ((*ps16ScfPtr) +2));
+
+                u32QuantizedSbValue0 = (UINT16)((s32Low1 | s32Hi1) >> 12);
+#else
+                /* finding level from reconstruction part of decoder */
+                u32SfRaisedToPow2 = ((UINT32)1 << *ps16ScfPtr);
+                u16Levels = (UINT16)(((UINT32)1 << s32LoopCount)-1);
+
+                /* quantizer */
+                s32Temp1 = (*ps32SbPtr >> 15) + u32SfRaisedToPow2;
+                Mult32(s32Temp1,u16Levels,s32Low);
+                s32Low>>= (*ps16ScfPtr+1);
+                u32QuantizedSbValue0 = (UINT16)s32Low;
+#endif
+                /*store the number of bits required and the quantized s32Sb
+                sample to ease the coding*/
+                u32QuantizedSbValue = u32QuantizedSbValue0;
+
+                if(s32PresentBit >= s32LoopCount)
+                {
+                    Temp <<= s32LoopCount;
+                    Temp |= u32QuantizedSbValue;
+                    s32PresentBit -= s32LoopCount;
+                }
+                else
+                {
+                    while (s32PresentBit < s32LoopCount)
+                    {
+                        s32LoopCount -= s32PresentBit;
+                        u32QuantizedSbValue >>= s32LoopCount;
+
+                        /*remove the unwanted msbs*/
+                        /*u32QuantizedSbValue <<= 16 - s32PresentBit;
+                        u32QuantizedSbValue >>= 16 - s32PresentBit;*/
+
+                        Temp <<= s32PresentBit;
+
+                        Temp |= u32QuantizedSbValue ;
+                        /*restore the original*/
+                        u32QuantizedSbValue=u32QuantizedSbValue0;
+
+                        *(pu8PacketPtr++)=Temp;
+                        Temp = 0;
+                        s32PresentBit = 8;
+                    }
+                    Temp <<= s32LoopCount;
+
+                    /* remove the unwanted msbs */
+                    /*u32QuantizedSbValue <<= 16 - s32LoopCount;
+                    u32QuantizedSbValue >>= 16 - s32LoopCount;*/
+
+                    Temp |= u32QuantizedSbValue;
+
+                    s32PresentBit -= s32LoopCount;
+                }
+            }
+            ps16ScfPtr++;
+            ps32SbPtr++;
+        }
+    }
+
+    Temp <<= s32PresentBit;
+    *pu8PacketPtr=Temp;
+    pstrEncParams->u16PacketLength=pu8PacketPtr-pstrEncParams->pu8NextPacket+1;
+    /*find CRC*/
+    pu8PacketPtr = pstrEncParams->pu8NextPacket+1;    /*Initialize the ptr*/
+    u8CRC = 0x0F;
+    s32LoopCount = s32Sb >> 1;
+
+    /*
+    The loops is run from the start of the packet till the scale factor
+    parameters. In case of JS, 'join' parameter is included in the packet
+    so that many more bytes are included in CRC calculation.
+    */
+    Temp=*pu8PacketPtr;
+    for (s32Ch=1; s32Ch < (s32LoopCount+4); s32Ch++)
+    {
+        /* skip sync word and CRC bytes */
+        if (s32Ch != 3)
+        {
+            for (s32LoopCountJ=7; s32LoopCountJ>=0; s32LoopCountJ--)
+            {
+                u8XoredVal = ((u8CRC >> 7) & 0x01) ^((Temp >> s32LoopCountJ) & 0x01);
+                u8CRC <<= 1;
+                u8CRC ^= (u8XoredVal * 0x1D);
+                u8CRC &= 0xFF;
+            }
+        }
+        Temp=*(++pu8PacketPtr);
+    }
+
+    if (pstrEncParams->s16ChannelMode == SBC_JOINT_STEREO)
+    {
+        for (s32LoopCountJ = 7; s32LoopCountJ >= (8 - s32NumOfSubBands); s32LoopCountJ--)
+        {
+            u8XoredVal = ((u8CRC >> 7) & 0x01) ^((Temp >> s32LoopCountJ) & 0x01);
+            u8CRC <<= 1;
+            u8CRC ^= (u8XoredVal * 0x1D);
+            u8CRC &= 0xFF;
+        }
+    }
+
+    /* CRC calculation ends here */
+
+    /* store CRC in packet */
+    pu8PacketPtr = pstrEncParams->pu8NextPacket;    /*Initialize the ptr*/
+    pu8PacketPtr += 3;
+    *pu8PacketPtr = u8CRC;
+    pstrEncParams->pu8NextPacket+=pstrEncParams->u16PacketLength;  /* move the pointer to the end in case there is more than one frame to encode */
+}
+
diff --git a/rtkbt/code/bt/hci/Android.mk b/rtkbt/code/bt/hci/Android.mk
new file mode 100755
index 0000000..ddbced6
--- /dev/null
+++ b/rtkbt/code/bt/hci/Android.mk
@@ -0,0 +1,97 @@
+LOCAL_PATH := $(call my-dir)
+
+# HCI static library for target
+# ========================================================
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES := \
+    src/btsnoop.c \
+    src/btsnoop_mem.c \
+    src/btsnoop_net.c \
+    src/buffer_allocator.c \
+    src/hci_audio.c \
+    src/hci_hal.c \
+    src/hci_hal_h4.c \
+    src/hci_hal_mct.c \
+    src/hci_inject.c \
+    src/hci_layer.c \
+    src/hci_packet_factory.c \
+    src/hci_packet_parser.c \
+    src/low_power_manager.c \
+    src/packet_fragmenter.c \
+    src/vendor.c
+
+ifeq ($(BOARD_HAVE_BLUETOOTH_RTK),true)
+LOCAL_CFLAGS += -DBLUETOOTH_RTK
+LOCAL_SRC_FILES += \
+    src/hci_hal_h5.c \
+    src/rtk_btsnoop_net.c \
+    src/bt_list.c \
+    src/bt_skbuff.c \
+    src/hci_h5.c
+endif
+
+ifeq ($(BOARD_HAVE_BLUETOOTH_RTK_COEX),true)
+LOCAL_SRC_FILES += \
+    src/rtk_parse.c
+endif
+
+LOCAL_C_INCLUDES += \
+    $(LOCAL_PATH)/include \
+    $(LOCAL_PATH)/.. \
+    $(LOCAL_PATH)/../include \
+    $(LOCAL_PATH)/../btcore/include \
+    $(LOCAL_PATH)/../stack/include \
+    $(LOCAL_PATH)/../utils/include \
+    $(LOCAL_PATH)/../bta/include \
+    $(bluetooth_C_INCLUDES)
+
+LOCAL_MODULE := libbt-hci-rtk
+
+ifeq ($(BLUETOOTH_HCI_USE_MCT),true)
+LOCAL_CFLAGS += -DHCI_USE_MCT
+endif
+ifeq ($(BOARD_HAVE_BLUETOOTH_RTK),true)
+LOCAL_CFLAGS += $(rtkbt_bdroid_CFLAGS)
+endif
+LOCAL_CFLAGS += $(bluetooth_CFLAGS) -Wno-unused-function -Wno-unused-variable
+LOCAL_CONLYFLAGS += $(bluetooth_CONLYFLAGS)
+LOCAL_CPPFLAGS += $(bluetooth_CPPFLAGS)
+
+include $(BUILD_STATIC_LIBRARY)
+
+## HCI unit tests for target
+## ========================================================
+#ifeq (,$(strip $(SANITIZE_TARGET)))
+#include $(CLEAR_VARS)
+#
+#LOCAL_C_INCLUDES := \
+#    $(LOCAL_PATH)/include \
+#    $(LOCAL_PATH)/.. \
+#    $(LOCAL_PATH)/../include \
+#    $(LOCAL_PATH)/../btcore/include \
+#    $(LOCAL_PATH)/../osi/test \
+#    $(LOCAL_PATH)/../stack/include \
+#    $(LOCAL_PATH)/../utils/include \
+#    $(bluetooth_C_INCLUDES)
+#
+#LOCAL_SRC_FILES := \
+#    ../osi/test/AllocationTestHarness.cpp \
+#    ../osi/test/AlarmTestHarness.cpp \
+#    ./test/hci_hal_h4_test.cpp \
+#    ./test/hci_hal_mct_test.cpp \
+#    ./test/hci_layer_test.cpp \
+#    ./test/low_power_manager_test.cpp \
+#    ./test/packet_fragmenter_test.cpp
+#
+#LOCAL_MODULE := net_test_hci
+#LOCAL_MODULE_TAGS := tests
+#LOCAL_SHARED_LIBRARIES := liblog libdl libprotobuf-cpp-full
+#LOCAL_STATIC_LIBRARIES := libbt-hci libosi libcutils libbtcore libbt-protos
+#
+#LOCAL_CFLAGS += $(bluetooth_CFLAGS)
+#LOCAL_CONLYFLAGS += $(bluetooth_CONLYFLAGS)
+#LOCAL_CPPFLAGS += $(bluetooth_CPPFLAGS)
+#
+#include $(BUILD_NATIVE_TEST)
+#endif # SANITIZE_TARGET
diff --git a/rtkbt/code/bt/hci/BUILD.gn b/rtkbt/code/bt/hci/BUILD.gn
new file mode 100755
index 0000000..35a0b78
--- /dev/null
+++ b/rtkbt/code/bt/hci/BUILD.gn
@@ -0,0 +1,79 @@
+#
+#  Copyright (C) 2015 Google, Inc.
+#
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at:
+#
+#  http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+#
+
+static_library("hci") {
+  sources = [
+    "src/btsnoop.c",
+    "src/btsnoop_mem.c",
+    "src/btsnoop_net.c",
+    "src/buffer_allocator.c",
+    "src/hci_audio.c",
+    "src/hci_hal.c",
+    "src/hci_hal_h4.c",
+    "src/hci_hal_mct.c",
+    "src/hci_inject.c",
+    "src/hci_layer.c",
+    "src/hci_packet_factory.c",
+    "src/hci_packet_parser.c",
+    "src/low_power_manager.c",
+    "src/packet_fragmenter.c",
+    "src/vendor.c",
+  ]
+
+  include_dirs = [
+    "include",
+    "//",
+    "//include",
+    "//bta/include",
+    "//btcore/include",
+    "//stack/include",
+  ]
+}
+
+executable("net_test_hci") {
+  testonly = true
+  sources = [
+    "//osi/test/AllocationTestHarness.cpp",
+    "//osi/test/AlarmTestHarness.cpp",
+    "test/hci_hal_h4_test.cpp",
+    "test/hci_hal_mct_test.cpp",
+    "test/hci_layer_test.cpp",
+    "test/low_power_manager_test.cpp",
+    "test/packet_fragmenter_test.cpp",
+  ]
+
+  include_dirs = [
+    "//",
+    "//include",
+    "//btcore/include",
+    "//hci/include",
+    "//osi/test",
+    "//stack/include",
+  ]
+
+  deps = [
+    "//hci",
+    "//osi",
+    "//btcore",
+    "//third_party/googletest:gtest_main",
+  ]
+
+  libs = [
+    "-lpthread",
+    "-lrt",
+    "-ldl",
+  ]
+}
diff --git a/rtkbt/code/bt/hci/include/bt_hci_bdroid.h b/rtkbt/code/bt/hci/include/bt_hci_bdroid.h
new file mode 100755
index 0000000..768744b
--- /dev/null
+++ b/rtkbt/code/bt/hci/include/bt_hci_bdroid.h
@@ -0,0 +1,131 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  Filename:      bt_hci_bdroid.h
+ *
+ *  Description:   A wrapper header file of bt_hci_lib.h
+ *
+ *                 Contains definitions specific for interfacing with Bluedroid
+ *                 Bluetooth stack
+ *
+ ******************************************************************************/
+
+#pragma once
+#ifdef BLUETOOTH_RTK
+#include "rtkbt_config.h"
+#endif
+
+#ifdef HAS_BDROID_BUILDCFG
+#include "bdroid_buildcfg.h"
+#endif
+
+/******************************************************************************
+**  Constants & Macros
+******************************************************************************/
+
+#if __STDC_VERSION__ < 199901L
+#  ifndef FALSE
+#    define FALSE 0
+#  endif
+#  ifndef TRUE
+#    define TRUE (!FALSE)
+#  endif
+#else
+#  include <stdbool.h>
+#  ifndef FALSE
+#    define FALSE  false
+#  endif
+#  ifndef TRUE
+#    define TRUE   true
+#  endif
+#endif
+
+#define HCI_ACL_MAX_SIZE 1024
+#define HCI_MAX_FRAME_SIZE (HCI_ACL_MAX_SIZE + 4)
+
+/* Host/Controller lib internal event ID */
+typedef enum {
+  HC_EVENT_LPM_IDLE_TIMEOUT,
+} bthc_event_t;
+
+/* Message event mask across Host/Controller lib and stack */
+#define MSG_EVT_MASK                    0xFF00 /* eq. BT_EVT_MASK */
+#define MSG_SUB_EVT_MASK                0x00FF /* eq. BT_SUB_EVT_MASK */
+
+/* Message event ID passed from Host/Controller lib to stack */
+#define MSG_HC_TO_STACK_HCI_ERR        0x1300 /* eq. BT_EVT_TO_BTU_HCIT_ERR */
+#define MSG_HC_TO_STACK_HCI_ACL        0x1100 /* eq. BT_EVT_TO_BTU_HCI_ACL */
+#define MSG_HC_TO_STACK_HCI_SCO        0x1200 /* eq. BT_EVT_TO_BTU_HCI_SCO */
+#define MSG_HC_TO_STACK_HCI_EVT        0x1000 /* eq. BT_EVT_TO_BTU_HCI_EVT */
+#define MSG_HC_TO_STACK_L2C_SEG_XMIT   0x1900 /* eq. BT_EVT_TO_BTU_L2C_SEG_XMIT */
+
+/* Message event ID passed from stack to vendor lib */
+#define MSG_STACK_TO_HC_HCI_ACL        0x2100 /* eq. BT_EVT_TO_LM_HCI_ACL */
+#define MSG_STACK_TO_HC_HCI_SCO        0x2200 /* eq. BT_EVT_TO_LM_HCI_SCO */
+#define MSG_STACK_TO_HC_HCI_CMD        0x2000 /* eq. BT_EVT_TO_LM_HCI_CMD */
+
+/* Local Bluetooth Controller ID for BR/EDR */
+#define LOCAL_BR_EDR_CONTROLLER_ID      0
+
+/******************************************************************************
+**  Type definitions and return values
+******************************************************************************/
+
+typedef struct
+{
+    uint16_t          event;
+    uint16_t          len;
+    uint16_t          offset;
+    uint16_t          layer_specific;
+    uint8_t           data[];
+} HC_BT_HDR;
+
+#define BT_HC_HDR_SIZE (sizeof(HC_BT_HDR))
+
+typedef struct _hc_buffer_hdr
+{
+    struct _hc_buffer_hdr *p_next;   /* next buffer in the queue */
+    uint8_t   reserved1;
+    uint8_t   reserved2;
+    uint8_t   reserved3;
+    uint8_t   reserved4;
+} HC_BUFFER_HDR_T;
+
+#define BT_HC_BUFFER_HDR_SIZE (sizeof(HC_BUFFER_HDR_T))
+
+/******************************************************************************
+**  Extern variables and functions
+******************************************************************************/
+
+#ifdef BLUETOOTH_RTK
+extern uint8_t h5_log_enable;
+#endif
+#ifdef BLUETOOTH_RTK_COEX
+extern uint8_t coex_log_enable;
+#endif
+/******************************************************************************
+**  Functions
+******************************************************************************/
+
+// Called when a buffer has been produced by the serial layer and should be
+// processed by the HCI layer.
+void bthc_rx_ready(void);
+void bthc_tx(HC_BT_HDR *buf);
+void bthc_idle_timeout(void);
diff --git a/rtkbt/code/bt/hci/include/bt_list.h b/rtkbt/code/bt/hci/include/bt_list.h
new file mode 100755
index 0000000..cf070d5
--- /dev/null
+++ b/rtkbt/code/bt/hci/include/bt_list.h
@@ -0,0 +1,168 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2016 Realtek Corporation.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+/******************************************************************************
+*
+*	Module Name:
+*	    bt_list.h
+*
+*	Abstract:
+*	    To implement list data structure
+*
+*	Major Change History:
+*	      When             Who         What
+*	    --------------------------------------------------------------
+*	    2010-06-04         W.Bi       Created
+*
+*	Notes:
+*
+******************************************************************************/
+
+#ifndef BT_LIST_H
+#define BT_LIST_H
+
+
+
+
+
+/**
+\file  bt_list.h
+\brief  Implement bluetooth list data structure. Has referred to Linux list implementation
+          You could add your new list manipulation here.
+*/
+
+
+/**
+ List entry structure, could be header or node.
+
+                  Prev<-----Header---->Next
+
+Every List has an additional header, and list tail will be list header's previous node.
+You can use list to form a queue or a stack data structure
+queue:
+    ListAddToTail----->LIST_FOR_EACH iterate--->manipulate on the list entry
+Stack:
+    ListAddToHead--- >LIST_FOR_EACH iterate--->manipulate on the list entry
+*/
+
+///RT list structure definition
+typedef struct _RT_LIST_ENTRY {
+    struct _RT_LIST_ENTRY *Next;   ///< Entry's next element
+    struct _RT_LIST_ENTRY *Prev;   ///< Entry's previous element
+} RT_LIST_ENTRY, *PRT_LIST_ENTRY;
+
+///List head would be another name of list entry, and it points to the list header
+typedef RT_LIST_ENTRY       RT_LIST_HEAD, *PRT_LIST_HEAD;
+
+/*----------------------------------------------------------------------------------
+    EXTERNAL FUNCTION
+----------------------------------------------------------------------------------*/
+
+///Initialize a list with its header
+void ListInitializeHeader(PRT_LIST_HEAD ListHead);
+
+/**
+    Add a new entry to the list.
+    Insert a new entry after the specified head. This is good for implementing stacks.
+    \param [IN]        ListNew     <RT_LIST_ENTRY>                 : new entry to be added
+    \param [IN OUT] ListHead    <RT_LIST_ENTRY>                 : List header after which to add new entry
+*/
+void ListAddToHead(PRT_LIST_ENTRY ListNew, PRT_LIST_HEAD ListHead);
+
+/**
+    Add a new entry to the list.
+    Insert a new entry before the specified head. This is good for implementing queues.
+    \param [IN]        ListNew     <RT_LIST_ENTRY>                 : new entry to be added
+    \param [IN OUT] ListHead    <RT_LIST_ENTRY>                 : List header before which to add new entry
+*/
+void ListAddToTail(PRT_LIST_ENTRY ListNew, PRT_LIST_HEAD ListHead);
+
+/**
+    Get entry in the head of the list
+     \param [IN ] ListHead    <RT_LIST_ENTRY>                 : List header
+     \return entry in the head , otherwise NULL
+*/
+RT_LIST_ENTRY* ListGetTop(PRT_LIST_HEAD ListHead);
+
+/**
+    Get entry in the tail of the list
+     \param [IN ] ListHead    <RT_LIST_ENTRY>                 : List header
+     \return entry in the tail , otherwise NULL
+*/
+RT_LIST_ENTRY*
+ListGetTail(
+    PRT_LIST_HEAD ListHead
+);
+
+/**
+    Delete entry from the list
+    Note: ListIsEmpty() on this list entry would not return true, since its state is undefined
+    \param [IN] ListToDelete     <RT_LIST_ENTRY>                 : list entry to be deleted
+*/
+void ListDeleteNode(PRT_LIST_ENTRY ListToDelete);
+
+/**
+    Tell whether the list is empty
+    \param [IN] ListHead          <RT_LIST_ENTRY>                 : List header of which to be test
+*/
+unsigned char ListIsEmpty(PRT_LIST_HEAD ListHead);
+
+//EXTERN void ListEmpty(PRT_LIST_HEAD ListHead);
+
+void
+    ListAdd(
+    PRT_LIST_ENTRY New,
+    PRT_LIST_ENTRY Prev,
+    PRT_LIST_ENTRY Next
+    );
+
+/*----------------------------------------------------------------------------------
+    MACRO
+----------------------------------------------------------------------------------*/
+
+/**
+    Macros to iterate over the list.
+    \param _Iter          : struct PRT_LIST_ENTRY type iterator to use as a loop cursor
+    \param _ListHead   : List head of which to be iterated
+*/
+#define LIST_FOR_EACH(_Iter, _ListHead) \
+        for ((_Iter) = (_ListHead)->Next; (_Iter) != (_ListHead); (_Iter) = (_Iter)->Next)
+
+/**
+    Macros to iterate over the list safely against removal of list entry.
+    If you would delete any list entry from the list while iterating the list, should use this macro
+    \param _Iter          : Struct PRT_LIST_ENTRY type iterator to use as a loop cursor
+    \param _Temp       : Another Struct PRT_LIST_ENTRY type to use as a temporary storage
+    \param _ListHead   : List head of which to be iterated
+*/
+#define LIST_FOR_EACH_SAFELY(_Iter, _Temp, _ListHead) \
+        for ((_Iter) = (_ListHead)->Next, (_Temp) = (_Iter)->Next; (_Iter) != (_ListHead);  \
+               (_Iter) = (_Temp), (_Temp) = (_Iter)->Next)
+
+/**
+    Macros to get the struct pointer of this list entry
+    You could make every RT_LIST_ENTRY at the first place of your structure to avoid the macro, which will be dangerouse.
+    Copy from winnt.h.
+    BUG:if offset of field in type larger than 32 bit interger, which is not likely to happen, it will error
+    \param _Ptr               : Struct RT_LIST_ENTRY type pointer
+    \param _Type            : The type of structure in which the RT_LIST_ENTRY embedded in
+    \param _Field            : the name of the RT_LIST_ENTRY within the struct
+*/
+#define LIST_ENTRY(_Ptr, _Type, _Field) ((_Type *)((char *)(_Ptr)-(unsigned long)(&((_Type *)0)->_Field)))
+
+
+#endif /*BT_LIST_H*/
diff --git a/rtkbt/code/bt/hci/include/bt_skbuff.h b/rtkbt/code/bt/hci/include/bt_skbuff.h
new file mode 100755
index 0000000..b6bf55f
--- /dev/null
+++ b/rtkbt/code/bt/hci/include/bt_skbuff.h
@@ -0,0 +1,362 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2016 Realtek Corporation.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+/******************************************************************************
+*
+*	Module Name:
+*	    bt_skbuff.h
+*
+*	Abstract:
+*	    Data buffer managerment through whole bluetooth stack.
+*
+*	Major Change History:
+*	      When             Who       What
+*	    --------------------------------------------------------------
+*	    2010-06-11       W.Bi     Created.
+*
+*	Notes:
+*	      To reduce memory copy when pass data buffer to other layers,
+*       RTK_BUFFER is designed referring to linux socket buffer.
+*       But I still wonder its effect, since RTK_BUFFER is much bigger
+*       than original data buffer.RTK_BUFFER will reduce its member if
+*       it would not reach what i had expected.
+*
+******************************************************************************/
+
+
+#ifndef BT_SKBUFF_H
+#define BT_SKBUFF_H
+#include "bt_list.h"
+
+#ifndef EXTERN
+#define EXTERN
+#endif
+
+#ifndef IN
+#define IN
+#endif
+
+#ifndef OUT
+#define OUT
+#endif
+/*----------------------------------------------------------------------------------
+    CONSTANT DEFINITION
+----------------------------------------------------------------------------------*/
+#define RTK_CONTEXT_SIZE 12
+
+#define RTB_QUEUE_ID_LENGTH          64
+
+/*----------------------------------------------------------------------------------
+    STRUCTURE DEFINITION
+----------------------------------------------------------------------------------*/
+/**
+    Rtk buffer definition
+      Head -->|<---Data--->|<-----Length------>| <---End
+                     _________________________________
+                    |_____________|___________________|
+                    |<-headroom->|<--RealDataBuffer-->|
+
+    Compared to socket buffer, there exists no tail and end pointer and tailroom as tail is rarely used in bluetooth stack
+    \param List             : List structure used to list same type rtk buffer and manipulate rtk buffer like list.
+    \param Head           : Pointer to truely allocated data buffer. It point to the headroom
+    \param Data           : Pointer to real data buffer.
+    \param Length        : currently data length
+    \param HeadRoom  : Record initialize headroom size.
+    \param RefCount    : Reference count. zero means able to be freed, otherwise somebody is handling it.
+    \param Priv            : Reserved for multi-device support. Record Hci pointer which will handles this packet
+    \param Contest      : Control buffer, put private variables here.
+*/
+typedef struct _RTK_BUFFER
+{
+    RT_LIST_ENTRY List;
+    uint8_t *Head;
+    uint8_t *Data;
+    uint8_t *Tail;
+    uint8_t *End;
+    uint32_t Length;
+    uint32_t HeadRoom;
+//    RT_U16 TailRoom;
+    signed char   RefCount;
+
+    void* Priv;
+    uint8_t Context[RTK_CONTEXT_SIZE];
+}RTK_BUFFER, *PRTK_BUFFER;
+
+/**
+    RTK_BUFFER Control Buffer Context
+    \param  PacketType      : HCI data types, Command/Acl/...
+    \param  LastFrag          : Is Current Acl buffer the last fragment.(0 for no, 1 for yes)
+    \param  TxSeq             : Current packet tx sequence
+    \param  Retries            : Current packet retransmission times
+    \param  Sar                 : L2cap control field segmentation and reassembly bits
+*/
+struct BT_RTB_CONTEXT{
+    uint8_t   PacketType;
+    uint16_t Handle;
+};
+
+///definition to get rtk_buffer's control buffer context pointer
+#define BT_CONTEXT(_Rtb) ((struct BT_RTB_CONTEXT *)((_Rtb)->Context))
+
+/**
+    Since RTBs are always used into/from list, so abstract this struct and provide APIs to easy process on RTBs
+*/
+typedef struct _RTB_QUEUE_HEAD  RTB_QUEUE_HEAD;
+/*----------------------------------------------------------------------------------
+    EXTERNAL FUNCTION
+----------------------------------------------------------------------------------*/
+/**
+    Allocate a RTK_BUFFER with specified data length and reserved headroom.
+    If caller does not know actual headroom to reserve for further usage, specify it to zero to use default value.
+    \param [IN]     Length            <uint32_t>        : current data buffer length to allcated
+    \param [IN]     HeadRoom     <uint32_t>         : if caller knows reserved head space, set it; otherwise set 0 to use default value
+    \return pointer to RTK_BUFFER if succeed, null otherwise
+*/
+RTK_BUFFER*
+RtbAllocate(
+    IN uint32_t Length,
+    IN uint32_t HeadRoom
+    );
+
+/**
+    Free specified Rtk_buffer
+    \param [IN]     RtkBuffer            <RTK_BUFFER*>        : buffer to free
+*/
+void
+RtbFree(
+    IN RTK_BUFFER* RtkBuffer
+    );
+
+/**
+    increament reference count
+*/
+void
+RtbIncreaseRefCount(
+    IN RTK_BUFFER* RtkBuffer
+);
+
+/**
+    Recycle a rtk_buffer after its usage if specified rtb could
+    if rtb total length is not smaller than specified rtbsize to be recycled for, it will succeeded recycling
+    \param [IN OUT]     RtkBuffer            <RTK_BUFFER*>        : buffer to recycle
+    \param [IN]             RtbSize              <uint32_t>                 : size of buffer to be recycled for
+*/
+/*
+BOOLEAN
+RtbCheckRecycle(
+    IN OUT RTK_BUFFER* RtkBuffer,
+    IN uint32_t   RtbSize
+    );
+*/
+/**
+    Add a specified length protocal header to the start of data buffer hold by specified rtk_buffer.
+    This function extends used data area of the buffer at the buffer start.
+    \param [IN OUT]     RtkBuffer            <RTK_BUFFER*>        : data buffer to add
+    \param [IN]            Length                <uint32_t>                 : header length
+    \return  Pointer to the first byte of the extra data is returned
+*/
+uint8_t*
+RtbAddHead(
+    IN OUT RTK_BUFFER* RtkBuffer,
+    IN uint32_t                 Length
+    );
+
+/**
+    Remove a specified length data from the start of data buffer hold by specified rtk_buffer.
+    This function returns the memory to the headroom.
+    \param [IN OUT]     RtkBuffer            <RTK_BUFFER*>        : data buffer to remove
+    \param [IN]            Length                <uint32_t>                 : header length
+    \return  Pointer to the next data in the buffer is returned, usually useless
+*/
+unsigned char
+RtbRemoveHead(
+    IN OUT RTK_BUFFER* RtkBuffer,
+    IN uint32_t                 Length
+    );
+
+/**
+    Add a specified length protocal header to the end of data buffer hold by specified rtk_buffer.
+    This function extends used data area of the buffer at the buffer end.
+    \param [IN OUT]     RtkBuffer            <RTK_BUFFER*>        : data buffer to add
+    \param [IN]            Length                <uint32_t>                 : header length
+    \return  Pointer to the first byte of the extra data is returned
+*/
+EXTERN uint8_t*
+RtbAddTail(
+    IN OUT RTK_BUFFER* RtkBuffer,
+    IN uint32_t                 Length
+    );
+
+/**
+    Remove a specified length data from the end of data buffer hold by specified rtk_buffer.
+*/
+EXTERN unsigned char
+RtbRemoveTail(
+    IN OUT RTK_BUFFER * RtkBuffer,
+    IN     uint32_t       Length
+);
+
+/**
+    Initialize a rtb queue.
+    \return  Initilized rtb queue if succeed, otherwise NULL
+*/
+EXTERN RTB_QUEUE_HEAD*
+RtbQueueInit(
+    );
+
+/**
+    Free a rtb queue.
+    \param [IN]     RtkQueueHead        <RTB_QUEUE_HEAD*>        : Rtk Queue
+*/
+EXTERN void
+RtbQueueFree(
+    RTB_QUEUE_HEAD* RtkQueueHead
+    );
+/**
+    Queue specified RtkBuffer into a RtkQueue at list tail.
+    \param [IN OUT]     RtkQueueHead        <RTB_QUEUE_HEAD*>        : Rtk Queue
+    \param [IN]            RtkBuffer                <RTK_BUFFER*>                 : Rtk buffer to add
+*/
+EXTERN void
+RtbQueueTail(
+    IN OUT RTB_QUEUE_HEAD* RtkQueueHead,
+    IN RTK_BUFFER*                 RtkBuffer
+    );
+
+/**
+    Queue specified RtkBuffer into a RtkQueue at list Head.
+    \param [IN OUT]     RtkQueueHead        <RTB_QUEUE_HEAD*>        : Rtk Queue
+    \param [IN]            RtkBuffer                <RTK_BUFFER*>                 : Rtk buffer to add
+*/
+EXTERN void
+RtbQueueHead(
+    IN OUT RTB_QUEUE_HEAD* RtkQueueHead,
+    IN RTK_BUFFER*                 RtkBuffer
+    );
+
+/**
+    Remove a RtkBuffer from specified rtkqueue at list tail.
+    \param [IN OUT]     RtkQueueHead        <RTB_QUEUE_HEAD*>        : Rtk Queue
+    \return    removed rtkbuffer if succeed, otherwise NULL
+*/
+EXTERN RTK_BUFFER*
+RtbDequeueTail(
+    IN OUT RTB_QUEUE_HEAD* RtkQueueHead
+    );
+
+/**
+    Remove a RtkBuffer from specified rtkqueue at list head.
+    \param [IN OUT]     RtkQueueHead        <RTB_QUEUE_HEAD*>        : Rtk Queue
+    \return    removed rtkbuffer if succeed, otherwise NULL
+*/
+EXTERN RTK_BUFFER*
+RtbDequeueHead(
+    IN OUT RTB_QUEUE_HEAD* RtkQueueHead
+    );
+
+/**
+    Get current rtb queue's length.
+    \param [IN]     RtkQueueHead        <RTB_QUEUE_HEAD*>        : Rtk Queue
+    \return    current queue's length
+*/
+EXTERN signed long
+RtbGetQueueLen(
+    IN RTB_QUEUE_HEAD* RtkQueueHead
+    );
+
+/**
+    Empty the rtkqueue.
+    \param [IN OUT]     RtkQueueHead        <RTB_QUEUE_HEAD*>        : Rtk Queue
+*/
+EXTERN void
+RtbEmptyQueue(
+    IN OUT RTB_QUEUE_HEAD* RtkQueueHead
+    );
+
+/**
+    Get the RtkBuffer which is the head of a RtkQueue
+    \param [IN OUT]     RtkQueueHead        <RTB_QUEUE_HEAD*>        : Rtk Queue
+    \return head of the RtkQueue , otherwise NULL
+*/
+EXTERN RTK_BUFFER*
+RtbTopQueue(
+    IN RTB_QUEUE_HEAD* RtkQueueHead
+);
+
+/**
+    Insert new Rtkbuffer in the old buffer
+    \param [IN OUT]     RtkQueueHead        <RTB_QUEUE_HEAD*>        : Rtk Queue
+    \param [IN]            OldRtkBuffer                <RTK_BUFFER*>                 : old rtk buffer
+    \param [IN]            NewRtkBuffer                <RTK_BUFFER*>                 : Rtk buffer to add
+*/
+EXTERN void
+RtbInsertBefore(
+    IN OUT RTB_QUEUE_HEAD* RtkQueueHead,
+    IN RTK_BUFFER* pOldRtkBuffer,
+    IN RTK_BUFFER* pNewRtkBuffer
+);
+
+/**
+    check whether the buffer is the last node in the queue
+*/
+EXTERN unsigned char
+RtbNodeIsLast(
+    IN RTB_QUEUE_HEAD* RtkQueueHead,
+    IN RTK_BUFFER*                 pRtkBuffer
+);
+
+/**
+    get the next buffer node after the specified buffer in the queue
+    if the specified buffer is the last node in the queue , return NULL
+    \param [IN]     RtkBuffer        <RTK_BUFFER*>        : Rtk Queue
+    \param [IN]     RtkBuffer        <RTK_BUFFER*>        : Rtk buffer
+    \return node after the specified buffer
+*/
+EXTERN RTK_BUFFER*
+RtbQueueNextNode(
+    IN RTB_QUEUE_HEAD* RtkQueueHead,
+    IN RTK_BUFFER*                 pRtkBuffer
+);
+
+/**
+    check whether queue is empty
+*/
+/*EXTERN BOOLEAN
+RtbQueueIsEmpty(
+   IN RTB_QUEUE_HEAD* RtkQueueHead
+);
+*/
+
+//annie_tmp
+EXTERN unsigned char
+RtbCheckQueueLen(
+   IN RTB_QUEUE_HEAD* RtkQueueHead,
+   IN uint8_t Len
+);
+
+EXTERN void
+RtbRemoveNode(
+    IN OUT RTB_QUEUE_HEAD* RtkQueueHead,
+    IN RTK_BUFFER*         RtkBuffer
+);
+
+EXTERN RTK_BUFFER*
+    RtbCloneBuffer(
+    IN RTK_BUFFER* pDataBuffer
+    );
+
+#endif /*BT_SKBUFF_H*/
diff --git a/rtkbt/code/bt/hci/include/bt_vendor_lib.h b/rtkbt/code/bt/hci/include/bt_vendor_lib.h
new file mode 100755
index 0000000..f6a7256
--- /dev/null
+++ b/rtkbt/code/bt/hci/include/bt_vendor_lib.h
@@ -0,0 +1,414 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#ifndef BT_VENDOR_LIB_H
+#define BT_VENDOR_LIB_H
+
+#include <stdint.h>
+#include <sys/cdefs.h>
+#include <sys/types.h>
+
+/** Struct types */
+
+
+/** Typedefs and defines */
+
+/** Vendor specific operations OPCODE */
+typedef enum {
+/*  [operation]
+ *      Power on or off the BT Controller.
+ *  [input param]
+ *      A pointer to int type with content of bt_vendor_power_state_t.
+ *      Typecasting conversion: (int *) param.
+ *  [return]
+ *      0 - default, don't care.
+ *  [callback]
+ *      None.
+ */
+    BT_VND_OP_POWER_CTRL,
+
+/*  [operation]
+ *      Perform any vendor specific initialization or configuration
+ *      on the BT Controller. This is called before stack initialization.
+ *  [input param]
+ *      None.
+ *  [return]
+ *      0 - default, don't care.
+ *  [callback]
+ *      Must call fwcfg_cb to notify the stack of the completion of vendor
+ *      specific initialization once it has been done.
+ */
+    BT_VND_OP_FW_CFG,
+
+/*  [operation]
+ *      Perform any vendor specific SCO/PCM configuration on the BT Controller.
+ *      This is called after stack initialization.
+ *  [input param]
+ *      None.
+ *  [return]
+ *      0 - default, don't care.
+ *  [callback]
+ *      Must call scocfg_cb to notify the stack of the completion of vendor
+ *      specific SCO configuration once it has been done.
+ */
+    BT_VND_OP_SCO_CFG,
+
+/*  [operation]
+ *      Open UART port on where the BT Controller is attached.
+ *      This is called before stack initialization.
+ *  [input param]
+ *      A pointer to int array type for open file descriptors.
+ *      The mapping of HCI channel to fd slot in the int array is given in
+ *      bt_vendor_hci_channels_t.
+ *      And, it requires the vendor lib to fill up the content before returning
+ *      the call.
+ *      Typecasting conversion: (int (*)[]) param.
+ *  [return]
+ *      Numbers of opened file descriptors.
+ *      Valid number:
+ *          1 - CMD/EVT/ACL-In/ACL-Out via the same fd (e.g. UART)
+ *          2 - CMD/EVT on one fd, and ACL-In/ACL-Out on the other fd
+ *          4 - CMD, EVT, ACL-In, ACL-Out are on their individual fd
+ *  [callback]
+ *      None.
+ */
+    BT_VND_OP_USERIAL_OPEN,
+
+/*  [operation]
+ *      Close the previously opened UART port.
+ *  [input param]
+ *      None.
+ *  [return]
+ *      0 - default, don't care.
+ *  [callback]
+ *      None.
+ */
+    BT_VND_OP_USERIAL_CLOSE,
+
+/*  [operation]
+ *      Get the LPM idle timeout in milliseconds.
+ *      The stack uses this information to launch a timer delay before it
+ *      attempts to de-assert LPM WAKE signal once downstream HCI packet
+ *      has been delivered.
+ *  [input param]
+ *      A pointer to uint32_t type which is passed in by the stack. And, it
+ *      requires the vendor lib to fill up the content before returning
+ *      the call.
+ *      Typecasting conversion: (uint32_t *) param.
+ *  [return]
+ *      0 - default, don't care.
+ *  [callback]
+ *      None.
+ */
+    BT_VND_OP_GET_LPM_IDLE_TIMEOUT,
+
+/*  [operation]
+ *      Enable or disable LPM mode on BT Controller.
+ *  [input param]
+ *      A pointer to uint8_t type with content of bt_vendor_lpm_mode_t.
+ *      Typecasting conversion: (uint8_t *) param.
+ *  [return]
+ *      0 - default, don't care.
+ *  [callback]
+ *      Must call lpm_cb to notify the stack of the completion of LPM
+ *      disable/enable process once it has been done.
+ */
+    BT_VND_OP_LPM_SET_MODE,
+
+/*  [operation]
+ *      Assert or Deassert LPM WAKE on BT Controller.
+ *  [input param]
+ *      A pointer to uint8_t type with content of bt_vendor_lpm_wake_state_t.
+ *      Typecasting conversion: (uint8_t *) param.
+ *  [return]
+ *      0 - default, don't care.
+ *  [callback]
+ *      None.
+ */
+    BT_VND_OP_LPM_WAKE_SET_STATE,
+
+/*  [operation]
+ *      Perform any vendor specific commands related to audio state changes.
+ *  [input param]
+ *      a pointer to bt_vendor_op_audio_state_t indicating what audio state is
+ *      set.
+ *  [return]
+ *      0 - default, don't care.
+ *  [callback]
+ *      None.
+ */
+    BT_VND_OP_SET_AUDIO_STATE,
+
+/*  [operation]
+ *      The epilog call to the vendor module so that it can perform any
+ *      vendor-specific processes (e.g. send a HCI_RESET to BT Controller)
+ *      before the caller calls for cleanup().
+ *  [input param]
+ *      None.
+ *  [return]
+ *      0 - default, don't care.
+ *  [callback]
+ *      Must call epilog_cb to notify the stack of the completion of vendor
+ *      specific epilog process once it has been done.
+ */
+    BT_VND_OP_EPILOG,
+
+/*  [operation]
+ *      Call to the vendor module so that it can perform all vendor-specific
+ *      operations to start offloading a2dp media encode & tx.
+ *  [input param]
+ *      pointer to bt_vendor_op_a2dp_offload_start_t containing elements
+ *      required for VND FW to setup a2dp offload.
+ *  [return]
+ *      0  - default, dont care.
+ *  [callback]
+ *      Must call a2dp_offload_start_cb to notify the stack of the
+ *      completion of vendor specific setup process once it has been done.
+ */
+    BT_VND_OP_A2DP_OFFLOAD_START,
+
+/*  [operation]
+ *      Call to the vendor module so that it can perform all vendor-specific
+ *      operations to suspend offloading a2dp media encode & tx.
+ *  [input param]
+ *      pointer to bt_vendor_op_a2dp_offload_t containing elements
+ *      required for VND FW to setup a2dp offload.
+ *  [return]
+ *      0  - default, dont care.
+ *  [callback]
+ *      Must call a2dp_offload_cb to notify the stack of the
+ *      completion of vendor specific setup process once it has been done.
+ */
+    BT_VND_OP_A2DP_OFFLOAD_STOP,
+
+} bt_vendor_opcode_t;
+
+/** Power on/off control states */
+typedef enum {
+    BT_VND_PWR_OFF,
+    BT_VND_PWR_ON,
+}  bt_vendor_power_state_t;
+
+/** Define HCI channel identifier in the file descriptors array
+    used in BT_VND_OP_USERIAL_OPEN operation.
+ */
+typedef enum {
+    CH_CMD,     // HCI Command channel
+    CH_EVT,     // HCI Event channel
+    CH_ACL_OUT, // HCI ACL downstream channel
+    CH_ACL_IN,  // HCI ACL upstream channel
+
+    CH_MAX      // Total channels
+}  bt_vendor_hci_channels_t;
+
+/** LPM disable/enable request */
+typedef enum {
+    BT_VND_LPM_DISABLE,
+    BT_VND_LPM_ENABLE,
+} bt_vendor_lpm_mode_t;
+
+/** LPM WAKE set state request */
+typedef enum {
+    BT_VND_LPM_WAKE_ASSERT,
+    BT_VND_LPM_WAKE_DEASSERT,
+} bt_vendor_lpm_wake_state_t;
+
+/** Callback result values */
+typedef enum {
+    BT_VND_OP_RESULT_SUCCESS,
+    BT_VND_OP_RESULT_FAIL,
+} bt_vendor_op_result_t;
+
+/** audio (SCO) state changes triggering VS commands for configuration */
+typedef struct {
+    uint16_t    handle;
+    uint16_t    peer_codec;
+    uint16_t    state;
+} bt_vendor_op_audio_state_t;
+
+/*
+ * Bluetooth Host/Controller Vendor callback structure.
+ */
+
+/* vendor initialization/configuration callback */
+typedef void (*cfg_result_cb)(bt_vendor_op_result_t result);
+
+/* datapath buffer allocation callback (callout)
+ *
+ *  Vendor lib needs to request a buffer through the alloc callout function
+ *  from HCI lib if the buffer is for constructing a HCI Command packet which
+ *  will be sent through xmit_cb to BT Controller.
+ *
+ *  For each buffer allocation, the requested size needs to be big enough to
+ *  accommodate the below header plus a complete HCI packet --
+ *      typedef struct
+ *      {
+ *          uint16_t          event;
+ *          uint16_t          len;
+ *          uint16_t          offset;
+ *          uint16_t          layer_specific;
+ *      } HC_BT_HDR;
+ *
+ *  HCI lib returns a pointer to the buffer where Vendor lib should use to
+ *  construct a HCI command packet as below format:
+ *
+ *  --------------------------------------------
+ *  |  HC_BT_HDR  |  HCI command               |
+ *  --------------------------------------------
+ *  where
+ *      HC_BT_HDR.event = 0x2000;
+ *      HC_BT_HDR.len = Length of HCI command;
+ *      HC_BT_HDR.offset = 0;
+ *      HC_BT_HDR.layer_specific = 0;
+ *
+ *  For example, a HCI_RESET Command will be formed as
+ *  ------------------------
+ *  |  HC_BT_HDR  |03|0c|00|
+ *  ------------------------
+ *  with
+ *      HC_BT_HDR.event = 0x2000;
+ *      HC_BT_HDR.len = 3;
+ *      HC_BT_HDR.offset = 0;
+ *      HC_BT_HDR.layer_specific = 0;
+ */
+typedef void* (*malloc_cb)(int size);
+
+/* datapath buffer deallocation callback (callout) */
+typedef void (*mdealloc_cb)(void *p_buf);
+
+/* define callback of the cmd_xmit_cb
+ *
+ *  The callback function which HCI lib will call with the return of command
+ *  complete packet. Vendor lib is responsible for releasing the buffer passed
+ *  in at the p_mem parameter by calling dealloc callout function.
+ */
+typedef void (*tINT_CMD_CBACK)(void *p_mem);
+
+/* hci command packet transmit callback (callout)
+ *
+ *  Vendor lib calls xmit_cb callout function in order to send a HCI Command
+ *  packet to BT Controller. The buffer carrying HCI Command packet content
+ *  needs to be first allocated through the alloc callout function.
+ *  HCI lib will release the buffer for Vendor lib once it has delivered the
+ *  packet content to BT Controller.
+ *
+ *  Vendor lib needs also provide a callback function (p_cback) which HCI lib
+ *  will call with the return of command complete packet.
+ *
+ *  The opcode parameter gives the HCI OpCode (combination of OGF and OCF) of
+ *  HCI Command packet. For example, opcode = 0x0c03 for the HCI_RESET command
+ *  packet.
+ */
+typedef uint8_t (*cmd_xmit_cb)(uint16_t opcode, void *p_buf, tINT_CMD_CBACK p_cback);
+
+typedef void (*cfg_a2dp_cb)(bt_vendor_op_result_t result, bt_vendor_opcode_t op, uint8_t bta_av_handle);
+
+typedef struct {
+    /** set to sizeof(bt_vendor_callbacks_t) */
+    size_t         size;
+
+    /*
+     * Callback and callout functions have implemented in HCI libray
+     * (libbt-hci.so).
+     */
+
+    /* notifies caller result of firmware configuration request */
+    cfg_result_cb  fwcfg_cb;
+
+    /* notifies caller result of sco configuration request */
+    cfg_result_cb  scocfg_cb;
+
+    /* notifies caller result of lpm enable/disable */
+    cfg_result_cb  lpm_cb;
+
+    /* notifies the result of codec setting */
+    cfg_result_cb audio_state_cb;
+
+    /* buffer allocation request */
+    malloc_cb   alloc;
+
+    /* buffer deallocation request */
+    mdealloc_cb dealloc;
+
+    /* hci command packet transmit request */
+    cmd_xmit_cb xmit_cb;
+
+    /* notifies caller completion of epilog process */
+    cfg_result_cb epilog_cb;
+
+    /* notifies status of a2dp offload cmd's */
+    cfg_a2dp_cb a2dp_offload_cb;
+} bt_vendor_callbacks_t;
+
+/** A2DP offload request */
+typedef struct {
+    uint8_t   bta_av_handle;                 /* BTA_AV Handle for callbacks */
+    uint16_t  xmit_quota;                    /* Total ACL quota for light stack */
+    uint16_t  acl_data_size;                 /* Max ACL data size across HCI transport */
+    uint16_t  stream_mtu;
+    uint16_t  local_cid;
+    uint16_t  remote_cid;
+    uint16_t  lm_handle;
+    uint8_t   is_flushable;                  /* TRUE if flushable channel */
+    uint32_t  stream_source;
+    uint8_t   codec_info[10];                /* Codec capabilities array */
+} bt_vendor_op_a2dp_offload_t;
+
+/*
+ * Bluetooth Host/Controller VENDOR Interface
+ */
+typedef struct {
+    /** Set to sizeof(bt_vndor_interface_t) */
+    size_t          size;
+
+    /*
+     * Functions need to be implemented in Vendor libray (libbt-vendor.so).
+     */
+
+    /**
+     * Caller will open the interface and pass in the callback routines
+     * to the implemenation of this interface.
+     */
+
+#ifdef BLUETOOTH_RTK
+    int (*init)(const bt_vendor_callbacks_t* p_cb, unsigned char *local_bdaddr, char *bt_device_node);
+#else
+    int (*init)(const bt_vendor_callbacks_t* p_cb, unsigned char *local_bdaddr);
+#endif
+    /**  Vendor specific operations */
+    int (*op)(bt_vendor_opcode_t opcode, void *param);
+
+    /** Closes the interface */
+    void  (*cleanup)(void);
+} bt_vendor_interface_t;
+
+
+/*
+ * External shared lib functions/data
+ */
+
+/* Entry point of DLib --
+ *      Vendor library needs to implement the body of bt_vendor_interface_t
+ *      structure and uses the below name as the variable name. HCI library
+ *      will use this symbol name to get address of the object through the
+ *      dlsym call.
+ */
+extern const bt_vendor_interface_t BLUETOOTH_VENDOR_LIB_INTERFACE;
+
+#endif /* BT_VENDOR_LIB_H */
+
diff --git a/rtkbt/code/bt/hci/include/btsnoop.h b/rtkbt/code/bt/hci/include/btsnoop.h
new file mode 100755
index 0000000..14fbf72
--- /dev/null
+++ b/rtkbt/code/bt/hci/include/btsnoop.h
@@ -0,0 +1,39 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+#include <stdbool.h>
+
+#include "bt_types.h"
+
+static const char BTSNOOP_MODULE[] = "btsnoop_module";
+
+typedef struct btsnoop_t {
+  // Inform btsnoop whether the API desires to log. If |value| is true.
+  // logging will be enabled. Otherwise it defers to the value from the
+  // config file.
+  void (*set_api_wants_to_log)(bool value);
+
+  // Capture |packet| and dump it to the btsnoop logs. If |is_received| is
+  // true, the packet is marked as incoming. Otherwise, the packet is marked
+  // as outgoing.
+  void (*capture)(const BT_HDR *packet, bool is_received);
+} btsnoop_t;
+
+const btsnoop_t *btsnoop_get_interface(void);
diff --git a/rtkbt/code/bt/hci/include/btsnoop_mem.h b/rtkbt/code/bt/hci/include/btsnoop_mem.h
new file mode 100755
index 0000000..fd8c560
--- /dev/null
+++ b/rtkbt/code/bt/hci/include/btsnoop_mem.h
@@ -0,0 +1,36 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2015 Google Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+#include <stdint.h>
+
+#include "bt_types.h"
+
+// Callback invoked for each HCI packet.
+// Highlander mode - there can be only one...
+typedef void (*btsnoop_data_cb)(const uint16_t type, const uint8_t *p_data, const size_t len);
+
+// This call sets the (one and only) callback that will
+// be invoked once for each HCI packet/event.
+void btsnoop_mem_set_callback(btsnoop_data_cb cb);
+
+// This function is invoked every time an HCI packet
+// is sent/received. Packets will be filtered  and then
+// forwarded to the |btsnoop_data_cb|.
+void btsnoop_mem_capture(const BT_HDR *p_buf);
diff --git a/rtkbt/code/bt/hci/include/buffer_allocator.h b/rtkbt/code/bt/hci/include/buffer_allocator.h
new file mode 100755
index 0000000..f71e00d
--- /dev/null
+++ b/rtkbt/code/bt/hci/include/buffer_allocator.h
@@ -0,0 +1,23 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+#include "osi/include/allocator.h"
+
+const allocator_t *buffer_allocator_get_interface();
diff --git a/rtkbt/code/bt/hci/include/hci_audio.h b/rtkbt/code/bt/hci/include/hci_audio.h
new file mode 100755
index 0000000..3eb1d61
--- /dev/null
+++ b/rtkbt/code/bt/hci/include/hci_audio.h
@@ -0,0 +1,40 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2015 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+#include <stdint.h>
+
+// Audio state definitions.
+typedef enum {
+    SCO_STATE_OFF = 0,      // Audio is off.
+    SCO_STATE_OFF_TRANSFER, // Closed pending final transfer of audio.
+    SCO_STATE_ON,           // Audio is on.
+    SCO_STATE_SETUP,        // Open pending completion of audio setup.
+} sco_state_t;
+
+// Codec type definitions.
+typedef enum {
+    SCO_CODEC_NONE = 0x0000,
+    SCO_CODEC_CVSD = 0x0001,
+    SCO_CODEC_MSBC = 0x0002,
+} sco_codec_t;
+
+// Set the audio state on the controller for SCO (PCM, WBS, ...) using the
+// vendor library.
+void set_audio_state(uint16_t handle, sco_codec_t codec, sco_state_t state);
diff --git a/rtkbt/code/bt/hci/include/hci_hal.h b/rtkbt/code/bt/hci/include/hci_hal.h
new file mode 100755
index 0000000..4ef1db2
--- /dev/null
+++ b/rtkbt/code/bt/hci/include/hci_hal.h
@@ -0,0 +1,91 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+#include <stdbool.h>
+#include <stdint.h>
+
+#include "osi/include/thread.h"
+#include "vendor.h"
+
+typedef enum {
+  DATA_TYPE_COMMAND = 1,
+  DATA_TYPE_ACL     = 2,
+  DATA_TYPE_SCO     = 3,
+  DATA_TYPE_EVENT   = 4
+} serial_data_type_t;
+
+typedef void (*data_ready_cb)(serial_data_type_t type);
+
+
+typedef struct {
+  // Called when the HAL detects inbound data.
+  // Data |type| may be ACL, SCO, or EVENT.
+  // Executes in the context of the thread supplied to |init|.
+  data_ready_cb data_ready;
+
+  /*
+  // Called when the HAL detects inbound astronauts named Dave.
+  // HAL will deny all requests to open the pod bay doors after this.
+  dave_ready_cb dave_ready;
+  */
+} hci_hal_callbacks_t;
+
+typedef struct hci_hal_t {
+  // Initialize the HAL, with |upper_callbacks| and |upper_thread| to run in the context of.
+  bool (*init)(const hci_hal_callbacks_t *upper_callbacks, thread_t *upper_thread);
+
+  // Connect to the underlying hardware, and let data start flowing.
+  bool (*open)(void);
+  // Disconnect from the underlying hardware, and close the HAL.
+  // "Daisy, Daisy..."
+  void (*close)(void);
+
+  // Retrieve up to |max_size| bytes for ACL, SCO, or EVENT data packets into
+  // |buffer|. Only guaranteed to be correct in the context of a data_ready
+  // callback of the corresponding type.
+  size_t (*read_data)(serial_data_type_t type, uint8_t *buffer, size_t max_size);
+  // The upper layer must call this to notify the HAL that it has finished
+  // reading a packet of the specified |type|. Underlying implementations that
+  // use shared channels for multiple data types depend on this to know when
+  // to reinterpret the data stream.
+  void (*packet_finished)(serial_data_type_t type);
+  // Transmit COMMAND, ACL, or SCO data packets.
+  // |data| may not be NULL. |length| must be greater than zero.
+  //
+  // IMPORTANT NOTE:
+  // Depending on the underlying implementation, the byte right
+  // before the beginning of |data| may be borrowed during this call
+  // and then restored to its original value.
+  // This is safe in the bluetooth context, because there is always a buffer
+  // header that prefixes data you're sending.
+  uint16_t (*transmit_data)(serial_data_type_t type, uint8_t *data, uint16_t length);
+} hci_hal_t;
+
+// Gets the correct hal implementation, as compiled for.
+const hci_hal_t *hci_hal_get_interface(void);
+
+const hci_hal_t *hci_hal_h4_get_interface(void);
+#ifdef BLUETOOTH_RTK
+const hci_hal_t *hci_hal_h5_get_interface(void);
+#endif
+const hci_hal_t *hci_hal_h4_get_test_interface(vendor_t *vendor_interface);
+
+const hci_hal_t *hci_hal_mct_get_interface(void);
+const hci_hal_t *hci_hal_mct_get_test_interface(vendor_t *vendor_interface);
diff --git a/rtkbt/code/bt/hci/include/hci_inject.h b/rtkbt/code/bt/hci/include/hci_inject.h
new file mode 100755
index 0000000..45d2304
--- /dev/null
+++ b/rtkbt/code/bt/hci/include/hci_inject.h
@@ -0,0 +1,34 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+#include <stdbool.h>
+
+typedef struct hci_t hci_t;
+
+typedef struct hci_inject_t {
+  // Starts the HCI injection module. Returns true on success, false on failure.
+  // Once started, this module must be shut down with |close|.
+  bool (*open)(const hci_t *hci_interface);
+
+  // Shuts down the HCI injection module.
+  void (*close)(void);
+} hci_inject_t;
+
+const hci_inject_t *hci_inject_get_interface();
diff --git a/rtkbt/code/bt/hci/include/hci_internals.h b/rtkbt/code/bt/hci/include/hci_internals.h
new file mode 100755
index 0000000..6b9fb01
--- /dev/null
+++ b/rtkbt/code/bt/hci/include/hci_internals.h
@@ -0,0 +1,28 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+// 2 bytes for opcode, 1 byte for parameter length (Volume 2, Part E, 5.4.1)
+#define HCI_COMMAND_PREAMBLE_SIZE 3
+// 2 bytes for handle, 2 bytes for data length (Volume 2, Part E, 5.4.2)
+#define HCI_ACL_PREAMBLE_SIZE 4
+// 2 bytes for handle, 1 byte for data length (Volume 2, Part E, 5.4.3)
+#define HCI_SCO_PREAMBLE_SIZE 3
+// 1 byte for event code, 1 byte for parameter length (Volume 2, Part E, 5.4.4)
+#define HCI_EVENT_PREAMBLE_SIZE 2
diff --git a/rtkbt/code/bt/hci/include/hci_layer.h b/rtkbt/code/bt/hci/include/hci_layer.h
new file mode 100755
index 0000000..c5fd7ab
--- /dev/null
+++ b/rtkbt/code/bt/hci/include/hci_layer.h
@@ -0,0 +1,123 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+#include <stdbool.h>
+
+#include "osi/include/allocator.h"
+#include "osi/include/data_dispatcher.h"
+#include "osi/include/fixed_queue.h"
+#include "osi/include/future.h"
+#include "osi/include/osi.h"
+#include "bt_types.h"
+
+#ifdef BLUETOOTH_RTK
+#include "bt_hci_bdroid.h"
+#endif
+static const char HCI_MODULE[] = "hci_module";
+
+///// LEGACY DEFINITIONS /////
+
+/* Message event mask across Host/Controller lib and stack */
+#define MSG_EVT_MASK                    0xFF00 /* eq. BT_EVT_MASK */
+#define MSG_SUB_EVT_MASK                0x00FF /* eq. BT_SUB_EVT_MASK */
+
+/* Message event ID passed from Host/Controller lib to stack */
+#define MSG_HC_TO_STACK_HCI_ERR        0x1300 /* eq. BT_EVT_TO_BTU_HCIT_ERR */
+#define MSG_HC_TO_STACK_HCI_ACL        0x1100 /* eq. BT_EVT_TO_BTU_HCI_ACL */
+#define MSG_HC_TO_STACK_HCI_SCO        0x1200 /* eq. BT_EVT_TO_BTU_HCI_SCO */
+#define MSG_HC_TO_STACK_HCI_EVT        0x1000 /* eq. BT_EVT_TO_BTU_HCI_EVT */
+#define MSG_HC_TO_STACK_L2C_SEG_XMIT   0x1900 /* eq. BT_EVT_TO_BTU_L2C_SEG_XMIT */
+
+/* Message event ID passed from stack to vendor lib */
+#define MSG_STACK_TO_HC_HCI_ACL        0x2100 /* eq. BT_EVT_TO_LM_HCI_ACL */
+#define MSG_STACK_TO_HC_HCI_SCO        0x2200 /* eq. BT_EVT_TO_LM_HCI_SCO */
+#define MSG_STACK_TO_HC_HCI_CMD        0x2000 /* eq. BT_EVT_TO_LM_HCI_CMD */
+
+/* Local Bluetooth Controller ID for BR/EDR */
+#define LOCAL_BR_EDR_CONTROLLER_ID      0
+
+///// END LEGACY DEFINITIONS /////
+
+typedef struct hci_hal_t hci_hal_t;
+typedef struct btsnoop_t btsnoop_t;
+typedef struct controller_t controller_t;
+typedef struct hci_inject_t hci_inject_t;
+typedef struct packet_fragmenter_t packet_fragmenter_t;
+typedef struct vendor_t vendor_t;
+typedef struct low_power_manager_t low_power_manager_t;
+
+typedef unsigned char * bdaddr_t;
+typedef uint16_t command_opcode_t;
+
+typedef enum {
+  LPM_DISABLE,
+  LPM_ENABLE,
+  LPM_WAKE_ASSERT,
+  LPM_WAKE_DEASSERT
+} low_power_command_t;
+
+typedef void (*command_complete_cb)(BT_HDR *response, void *context);
+typedef void (*command_status_cb)(uint8_t status, BT_HDR *command, void *context);
+
+#ifdef BLUETOOTH_RTK
+extern char bt_hci_device_node[BT_HCI_DEVICE_NODE_MAX_LEN];
+
+extern bool bluetooth_rtk_h5_flag ;//Default Usb H4 Interfcace ,if ture Uart H5 Interface
+#endif
+
+typedef struct hci_t {
+  // Send a low power command, if supported and the low power manager is enabled.
+  void (*send_low_power_command)(low_power_command_t command);
+
+  // Do the postload sequence (call after the rest of the BT stack initializes).
+  void (*do_postload)(void);
+
+  // Register with this data dispatcher to receive events flowing upward out of the HCI layer
+  data_dispatcher_t *event_dispatcher;
+
+  // Set the queue to receive ACL data in
+  void (*set_data_queue)(fixed_queue_t *queue);
+
+  // Send a command through the HCI layer
+  void (*transmit_command)(
+      BT_HDR *command,
+      command_complete_cb complete_callback,
+      command_status_cb status_cb,
+      void *context
+  );
+
+  future_t *(*transmit_command_futured)(BT_HDR *command);
+
+  // Send some data downward through the HCI layer
+  void (*transmit_downward)(data_dispatcher_type_t type, void *data);
+} hci_t;
+
+const hci_t *hci_layer_get_interface();
+
+const hci_t *hci_layer_get_test_interface(
+    const allocator_t *buffer_allocator_interface,
+    const hci_hal_t *hal_interface,
+    const btsnoop_t *btsnoop_interface,
+    const hci_inject_t *hci_inject_interface,
+    const packet_fragmenter_t *packet_fragmenter_interface,
+    const vendor_t *vendor_interface,
+    const low_power_manager_t *low_power_manager_interface);
+
+void hci_layer_cleanup_interface();
diff --git a/rtkbt/code/bt/hci/include/hci_packet_factory.h b/rtkbt/code/bt/hci/include/hci_packet_factory.h
new file mode 100755
index 0000000..ac6f12a
--- /dev/null
+++ b/rtkbt/code/bt/hci/include/hci_packet_factory.h
@@ -0,0 +1,46 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+#include "bt_types.h"
+#include "event_mask.h"
+
+typedef struct {
+  BT_HDR *(*make_reset)(void);
+  BT_HDR *(*make_read_buffer_size)(void);
+  BT_HDR *(*make_host_buffer_size)(uint16_t acl_size, uint8_t sco_size, uint16_t acl_count, uint16_t sco_count);
+  BT_HDR *(*make_read_local_version_info)(void);
+  BT_HDR *(*make_read_bd_addr)(void);
+  BT_HDR *(*make_read_local_supported_commands)(void);
+  BT_HDR *(*make_read_local_extended_features)(uint8_t page_number);
+  BT_HDR *(*make_write_simple_pairing_mode)(uint8_t mode);
+  BT_HDR *(*make_write_secure_connections_host_support)(uint8_t mode);
+  BT_HDR *(*make_set_event_mask)(const bt_event_mask_t *event_mask);
+  BT_HDR *(*make_ble_write_host_support)(uint8_t supported_host, uint8_t simultaneous_host);
+  BT_HDR *(*make_ble_read_white_list_size)(void);
+  BT_HDR *(*make_ble_read_buffer_size)(void);
+  BT_HDR *(*make_ble_read_supported_states)(void);
+  BT_HDR *(*make_ble_read_local_supported_features)(void);
+  BT_HDR *(*make_ble_read_resolving_list_size)(void);
+  BT_HDR *(*make_ble_read_suggested_default_data_length)(void);
+  BT_HDR *(*make_ble_set_event_mask)(const bt_event_mask_t *event_mask);
+  BT_HDR *(*make_read_local_supported_codecs)(void);
+} hci_packet_factory_t;
+
+const hci_packet_factory_t *hci_packet_factory_get_interface();
diff --git a/rtkbt/code/bt/hci/include/hci_packet_parser.h b/rtkbt/code/bt/hci/include/hci_packet_parser.h
new file mode 100755
index 0000000..ba3b193
--- /dev/null
+++ b/rtkbt/code/bt/hci/include/hci_packet_parser.h
@@ -0,0 +1,105 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+#include <stdint.h>
+
+#include "osi/include/allocator.h"
+#include "bdaddr.h"
+#include "bt_types.h"
+#include "device_features.h"
+#include "features.h"
+#include "version.h"
+
+typedef struct {
+  void (*parse_generic_command_complete)(BT_HDR *response);
+
+  void (*parse_read_buffer_size_response)(
+    BT_HDR *response,
+    uint16_t *data_size_ptr,
+    uint16_t *acl_buffer_count_ptr
+  );
+
+  void (*parse_read_local_version_info_response)(
+    BT_HDR *response,
+    bt_version_t *bt_version_ptr
+  );
+
+  void (*parse_read_bd_addr_response)(
+    BT_HDR *response,
+    bt_bdaddr_t *address_ptr
+  );
+
+  void (*parse_read_local_supported_commands_response)(
+    BT_HDR *response,
+    uint8_t *supported_commands_ptr,
+    size_t supported_commands_length
+  );
+
+  void (*parse_read_local_extended_features_response)(
+    BT_HDR *response,
+    uint8_t *page_number_ptr,
+    uint8_t *max_page_number_ptr,
+    bt_device_features_t *feature_pages,
+    size_t feature_pages_count
+  );
+
+  void (*parse_ble_read_white_list_size_response)(
+    BT_HDR *response,
+    uint8_t *white_list_size_ptr
+  );
+
+  void (*parse_ble_read_buffer_size_response)(
+    BT_HDR *response,
+    uint16_t *data_size_ptr,
+    uint8_t *acl_buffer_count_ptr
+  );
+
+  void (*parse_ble_read_supported_states_response)(
+    BT_HDR *response,
+    uint8_t *supported_states,
+    size_t supported_states_size
+  );
+
+  void (*parse_ble_read_local_supported_features_response)(
+    BT_HDR *response,
+    bt_device_features_t *supported_features
+  );
+
+  void (*parse_ble_read_resolving_list_size_response) (
+    BT_HDR *response,
+    uint8_t *resolving_list_size_ptr
+  );
+
+  void (*parse_ble_read_suggested_default_data_length_response)(
+    BT_HDR *response,
+    uint16_t *ble_default_packet_length_ptr
+  );
+
+  void (*parse_read_local_supported_codecs_response)(
+    BT_HDR *response,
+    uint8_t *number_of_local_supported_codecs, uint8_t *local_supported_codecs);
+
+} hci_packet_parser_t;
+
+const hci_packet_parser_t *hci_packet_parser_get_interface();
+
+const hci_packet_parser_t *hci_packet_parser_get_test_interface(
+  allocator_t *buffer_allocator_interface
+);
diff --git a/rtkbt/code/bt/hci/include/low_power_manager.h b/rtkbt/code/bt/hci/include/low_power_manager.h
new file mode 100755
index 0000000..95f990a
--- /dev/null
+++ b/rtkbt/code/bt/hci/include/low_power_manager.h
@@ -0,0 +1,47 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+#include "hci_layer.h"
+
+typedef struct thread_t thread_t;
+typedef struct vendor_t vendor_t;
+
+typedef struct low_power_manager_t {
+  // Initialize the low power manager, and use |post_thread| to synchronize actions.
+  void (*init)(thread_t *post_thread);
+
+  // Clean up the low power manager and release resources.
+  void (*cleanup)(void);
+
+  // Performs |command| synchronized on the thread that was provided
+  // at initialization time.
+  void (*post_command)(low_power_command_t command);
+
+  // Assert wake (for transmission). Must be called on the thread provided
+  // at initialization time.
+  void (*wake_assert)(void);
+
+  // Tell the low power manager that you're done transmitting data. Must be
+  // called on the thread provided at initialization time.
+  void (*transmit_done)(void);
+} low_power_manager_t;
+
+const low_power_manager_t *low_power_manager_get_interface();
+const low_power_manager_t *low_power_manager_get_test_interface(const vendor_t *vendor_interface);
diff --git a/rtkbt/code/bt/hci/include/packet_fragmenter.h b/rtkbt/code/bt/hci/include/packet_fragmenter.h
new file mode 100755
index 0000000..58f6ed6
--- /dev/null
+++ b/rtkbt/code/bt/hci/include/packet_fragmenter.h
@@ -0,0 +1,60 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+#include "osi/include/allocator.h"
+#include "bt_types.h"
+#include "hci_layer.h"
+
+typedef void (*transmit_finished_cb)(BT_HDR *packet, bool all_fragments_sent);
+typedef void (*packet_reassembled_cb)(BT_HDR *packet);
+typedef void (*packet_fragmented_cb)(BT_HDR *packet, bool send_transmit_finished);
+
+typedef struct {
+  // Called for every packet fragment.
+  packet_fragmented_cb fragmented;
+
+  // Called for every completely reassembled packet.
+  packet_reassembled_cb reassembled;
+
+  // Called when the fragmenter finishes sending all requested fragments,
+  // but the packet has not been entirely sent.
+  transmit_finished_cb transmit_finished;
+} packet_fragmenter_callbacks_t;
+
+typedef struct packet_fragmenter_t {
+  // Initialize the fragmenter, specifying the |result_callbacks|.
+  void (*init)(const packet_fragmenter_callbacks_t *result_callbacks);
+
+  // Release all resources associated with the fragmenter.
+  void (*cleanup)(void);
+
+  // Fragments |packet| if necessary and hands off everything to the fragmented callback.
+  void (*fragment_and_dispatch)(BT_HDR *packet);
+  // If |packet| is a complete packet, forwards to the reassembled callback. Otherwise
+  // holds onto it until all fragments arrive, at which point the reassembled callback is called
+  // with the reassembled data.
+  void (*reassemble_and_dispatch)(BT_HDR *packet);
+} packet_fragmenter_t;
+
+const packet_fragmenter_t *packet_fragmenter_get_interface();
+
+const packet_fragmenter_t *packet_fragmenter_get_test_interface(
+    const controller_t *controller_interface,
+    const allocator_t *buffer_allocator_interface);
diff --git a/rtkbt/code/bt/hci/include/rtk_parse.h b/rtkbt/code/bt/hci/include/rtk_parse.h
new file mode 100755
index 0000000..5a03655
--- /dev/null
+++ b/rtkbt/code/bt/hci/include/rtk_parse.h
@@ -0,0 +1,96 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2016 Realtek Corporation.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+/******************************************************************************
+*
+*	Module Name:
+*	    rtk_parse.h
+*
+*	Abstract:
+*	    Contains wifi-bt coex functions implemented by bluedroid stack
+*
+*	Major Change History:
+*	      When             Who       What
+*	    ---------------------------------------------------------------
+*	    2015-12-15      lamparten   modified
+*	    2014-10-23       kyle_xu    modified
+*
+*	Notes:
+*         This is designed for wifi-bt Coex in Android 6.0.
+*
+******************************************************************************/
+
+
+#ifndef RTK_PARSE_H
+#define RTK_PARSE_H
+
+#pragma once
+
+#include <stdlib.h>
+#include "hci_layer.h"
+#include "bt_types.h"
+#include "buffer_allocator.h"
+#include <string.h>
+#include <string.h>
+#include <strings.h>
+/******************************************************************************
+**  Constants & Macros
+******************************************************************************/
+#define HOST_PROFILE_INFO
+
+/******************************************************************************
+**  Type definitions
+******************************************************************************/
+typedef unsigned char   UINT8;
+#define BD_ADDR_LEN     6                   /* Device address length */
+typedef UINT8 BD_ADDR[BD_ADDR_LEN];         /* Device address */
+typedef void* TRANSAC;
+
+
+/******************************************************************************
+**  Extern variables and functions
+******************************************************************************/
+extern uint8_t coex_log_enable;
+
+/******************************************************************************
+**  Functions
+******************************************************************************/
+typedef struct rtk_parse_manager_t {
+
+    void (*rtk_parse_internal_event_intercept)(uint8_t *p);
+
+    void (*rtk_parse_l2cap_data)(uint8_t *p, uint8_t direction);
+
+    void (*rtk_parse_init)(hci_t *hci_if);
+
+    void (*rtk_parse_cleanup)();
+
+    void (*rtk_parse_command)(uint8_t *p);
+
+    void (*rtk_add_le_profile)(BD_ADDR bdaddr, uint16_t handle, uint8_t profile_map);
+
+    void (*rtk_delete_le_profile)(BD_ADDR bdaddr, uint16_t handle, uint8_t profile_map);
+
+    void (*rtk_add_le_data_count)(uint8_t data_type);
+
+    void (*rtk_add_bitpool_to_fw)(uint8_t bitpool);
+
+}rtk_parse_manager_t;
+
+const rtk_parse_manager_t *rtk_parse_manager_get_interface();
+
+#endif /*RTK_PARSE_H*/
diff --git a/rtkbt/code/bt/hci/include/userial.h b/rtkbt/code/bt/hci/include/userial.h
new file mode 100755
index 0000000..1988c5c
--- /dev/null
+++ b/rtkbt/code/bt/hci/include/userial.h
@@ -0,0 +1,71 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+// This module manages the serial port over which HCI commands
+// and data are sent/received.
+
+#pragma once
+
+#include <stdbool.h>
+#include <stdint.h>
+
+typedef enum {
+  USERIAL_PORT_1,
+  USERIAL_PORT_2,
+  USERIAL_PORT_3,
+  USERIAL_PORT_4,
+  USERIAL_PORT_5,
+  USERIAL_PORT_6,
+  USERIAL_PORT_7,
+  USERIAL_PORT_8,
+  USERIAL_PORT_9,
+  USERIAL_PORT_10,
+  USERIAL_PORT_11,
+  USERIAL_PORT_12,
+  USERIAL_PORT_13,
+  USERIAL_PORT_14,
+  USERIAL_PORT_15,
+  USERIAL_PORT_16,
+  USERIAL_PORT_17,
+  USERIAL_PORT_18,
+} userial_port_t;
+
+// Initializes the userial module. This function should only ever be called once.
+// It returns true if the module could be initialized, false if there was an error.
+bool userial_init(void);
+
+// Opens the given serial port. Returns true if successful, false otherwise.
+// Once this function is called, the userial module will begin producing
+// buffers from data read off the serial port. If you wish to pause the
+// production of buffers, call |userial_pause_reading|. You can then resume
+// by calling |userial_resume_reading|. This function returns true if the
+// serial port was successfully opened and buffer production has started. It
+// returns false if there was an error.
+bool userial_open(userial_port_t port);
+void userial_close(void);
+void userial_close_reader(void);
+
+// Reads a maximum of |len| bytes from the serial port into |p_buffer|.
+// This function returns the number of bytes actually read, which may be
+// less than |len|. This function will not block.
+uint16_t userial_read(uint16_t msg_id, uint8_t *p_buffer, uint16_t len);
+
+// Writes a maximum of |len| bytes from |p_data| to the serial port.
+// This function returns the number of bytes actually written, which may be
+// less than |len|. This function may block.
+uint16_t userial_write(uint16_t msg_id, const uint8_t *p_data, uint16_t len);
diff --git a/rtkbt/code/bt/hci/include/vendor.h b/rtkbt/code/bt/hci/include/vendor.h
new file mode 100755
index 0000000..e147b23
--- /dev/null
+++ b/rtkbt/code/bt/hci/include/vendor.h
@@ -0,0 +1,73 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+#include <stdbool.h>
+#include <stdint.h>
+
+#include "bt_types.h"
+#include "bt_vendor_lib.h"
+#include "hci_internals.h"
+#include "hci_layer.h"
+
+typedef enum {
+  VENDOR_CHIP_POWER_CONTROL   = BT_VND_OP_POWER_CTRL,
+  VENDOR_OPEN_USERIAL         = BT_VND_OP_USERIAL_OPEN,
+  VENDOR_CLOSE_USERIAL        = BT_VND_OP_USERIAL_CLOSE,
+  VENDOR_GET_LPM_IDLE_TIMEOUT = BT_VND_OP_GET_LPM_IDLE_TIMEOUT,
+  VENDOR_SET_LPM_WAKE_STATE   = BT_VND_OP_LPM_WAKE_SET_STATE,
+  VENDOR_SET_AUDIO_STATE      = BT_VND_OP_SET_AUDIO_STATE
+} vendor_opcode_t;
+
+typedef enum {
+  VENDOR_CONFIGURE_FIRMWARE   = BT_VND_OP_FW_CFG,
+  VENDOR_CONFIGURE_SCO        = BT_VND_OP_SCO_CFG,
+  VENDOR_SET_LPM_MODE         = BT_VND_OP_LPM_SET_MODE,
+  VENDOR_DO_EPILOG            = BT_VND_OP_EPILOG,
+  VENDOR_A2DP_OFFLOAD_START   = BT_VND_OP_A2DP_OFFLOAD_START,
+  VENDOR_A2DP_OFFLOAD_STOP    = BT_VND_OP_A2DP_OFFLOAD_STOP,
+  VENDOR_LAST_OP
+} vendor_async_opcode_t;
+
+typedef void (*vendor_cb)(bool success);
+
+typedef struct vendor_t{
+  // Opens the vendor-specific library and sets the Bluetooth
+  // address of the adapter to |local_bdaddr|. |hci_interface| is
+  // used to send commands on behalf of the vendor library.
+  bool (*open)(
+    const uint8_t *local_bdaddr,
+    const hci_t *hci_interface
+  );
+
+  // Closes the vendor-specific library and frees all associated resources.
+  // Only |vendor_open| may be called after |vendor_close|.
+  void (*close)(void);
+
+  // Sends a vendor-specific command to the library.
+  int (*send_command)(vendor_opcode_t opcode, void *param);
+
+  // Sends an asynchronous vendor-specific command to the library.
+  int (*send_async_command)(vendor_async_opcode_t opcode, void *param);
+
+  // Registers a callback for an asynchronous vendor-specific command.
+  void (*set_callback)(vendor_async_opcode_t opcode, vendor_cb callback);
+} vendor_t;
+
+const vendor_t *vendor_get_interface();
diff --git a/rtkbt/code/bt/hci/src/bt_list.c b/rtkbt/code/bt/hci/src/bt_list.c
new file mode 100755
index 0000000..77227b6
--- /dev/null
+++ b/rtkbt/code/bt/hci/src/bt_list.c
@@ -0,0 +1,144 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2016 Realtek Corporation.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+/******************************************************************************
+*
+*	Module Name:
+*	    bt_list.c
+*
+*	Abstract:
+*	    To implement list data structure
+*
+*	Major Change History:
+*	      When             Who         What
+*    	--------------------------------------------------------------
+*	    2010-06-04         W.Bi       Created
+*
+*	Notes:
+*
+******************************************************************************/
+#include "bt_list.h"
+
+//****************************************************************************
+// Structure
+//****************************************************************************
+
+
+//****************************************************************************
+// FUNCTION
+//****************************************************************************
+//Initialize a list with its header
+void ListInitializeHeader(PRT_LIST_HEAD ListHead)
+{
+    ListHead->Next = ListHead;
+    ListHead->Prev = ListHead;
+}
+
+/**
+    Tell whether the list is empty
+    \param [IN] ListHead          <RT_LIST_ENTRY>                 : List header of which to be test
+*/
+unsigned char ListIsEmpty(PRT_LIST_HEAD ListHead)
+{
+    return ListHead->Next == ListHead;
+}
+
+/*
+    Insert a new entry between two known consecutive entries.
+    This is only for internal list manipulation where we know the prev&next entries already
+    @New : New element to be added
+    @Prev: previous element in the list
+    @Next: Next element in the list
+*/
+void
+    ListAdd(
+    PRT_LIST_ENTRY New,
+    PRT_LIST_ENTRY Prev,
+    PRT_LIST_ENTRY Next
+    )
+{
+    Next->Prev = New;
+    New->Next = Next;
+    New->Prev = Prev;
+    Prev->Next = New;
+}
+/**
+    Add a new entry to the list.
+    Insert a new entry after the specified head. This is good for implementing stacks.
+    \param [IN] ListNew            <RT_LIST_ENTRY>                 : new entry to be added
+    \param [IN OUT] ListHead    <RT_LIST_ENTRY>                 : List header after which to add new entry
+*/
+void
+ListAddToHead(
+    PRT_LIST_ENTRY ListNew,
+    PRT_LIST_HEAD ListHead
+    )
+{
+    ListAdd(ListNew, ListHead, ListHead->Next);
+}
+
+/**
+    Add a new entry to the list.
+    Insert a new entry before the specified head. This is good for implementing queues.
+    \param [IN] ListNew            <RT_LIST_ENTRY>                 : new entry to be added
+    \param [IN OUT] ListHead    <RT_LIST_ENTRY>                 : List header before which to add new entry
+*/
+void
+ListAddToTail(
+    PRT_LIST_ENTRY ListNew,
+    PRT_LIST_HEAD ListHead
+    )
+{
+    ListAdd(ListNew, ListHead->Prev, ListHead);
+}
+
+RT_LIST_ENTRY*
+ListGetTop(
+    PRT_LIST_HEAD ListHead
+)
+{
+
+    if (ListIsEmpty(ListHead))
+        return 0;
+
+    return ListHead->Next;
+}
+
+RT_LIST_ENTRY*
+ListGetTail(
+    PRT_LIST_HEAD ListHead
+)
+{
+    if (ListIsEmpty(ListHead))
+        return 0;
+
+    return ListHead->Prev;
+}
+/**
+    Delete entry from the list
+    Note: ListIsEmpty() on this list entry would not return true, since its state is undefined
+    \param [IN] ListToDelete     <RT_LIST_ENTRY>                 : list entry to be deleted
+*/
+void ListDeleteNode(PRT_LIST_ENTRY ListToDelete)
+{
+//    if (ListToDelete->Next != NULL && ListToDelete->Prev != NULL)
+    {
+        ListToDelete->Next->Prev = ListToDelete->Prev;
+        ListToDelete->Prev->Next = ListToDelete->Next;
+        ListToDelete->Next = ListToDelete->Prev = ListToDelete;
+    }
+}
diff --git a/rtkbt/code/bt/hci/src/bt_skbuff.c b/rtkbt/code/bt/hci/src/bt_skbuff.c
new file mode 100755
index 0000000..47d4438
--- /dev/null
+++ b/rtkbt/code/bt/hci/src/bt_skbuff.c
@@ -0,0 +1,573 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2016 Realtek Corporation.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+/******************************************************************************
+*
+*	Module Name:
+*	    bt_skbuff.c
+*
+*	Abstract:
+*	    Data buffer managerment through whole bluetooth stack.
+*
+*	Major Change History:
+*	      When             Who       What
+*	    --------------------------------------------------------------
+*	    2010-06-11       W.Bi    Created.
+*
+*	Notes:
+*		  To reduce memory copy when pass data buffer to other layers,
+*      	RTK_BUFFER is designed referring to linux socket buffer.
+*       But I still wonder its effect, since RTK_BUFFER is much bigger
+*       than original data buffer.RTK_BUFFER will reduce its member if
+*       it would not reach what i had expected.
+*
+******************************************************************************/
+
+
+#define LOG_TAG "bt_h5"
+#undef NDEBUG
+#include <utils/Log.h>
+#include <stdlib.h>
+#include <fcntl.h>
+
+#include <termios.h>
+#include <errno.h>
+#include <pthread.h>
+
+
+#include "bt_list.h"
+#include "bt_skbuff.h"
+#include "bt_types.h"
+#include "string.h"
+#define IN
+#define OUT
+
+//****************************************************************************
+// CONSTANT DEFINITION
+//****************************************************************************
+///default header size
+///l2cap header(8)+hci acl(4)
+#define DEFAULT_HEADER_SIZE    (8+4)
+
+//RTK_BUFFER data buffer alignment
+#define RTB_ALIGN   4
+
+//do alignment with RTB_ALIGN
+#define RTB_DATA_ALIGN(_Length)     ((_Length + (RTB_ALIGN - 1)) & (~(RTB_ALIGN - 1)))
+
+//****************************************************************************
+// STRUCTURE DEFINITION
+//****************************************************************************
+typedef struct _RTB_QUEUE_HEAD{
+    RT_LIST_HEAD List;
+    uint32_t  QueueLen;
+    pthread_mutex_t Lock;
+    uint8_t   Id[RTB_QUEUE_ID_LENGTH];
+}RTB_QUEUE_HEAD, *PRTB_QUEUE_HEAD;
+
+//****************************************************************************
+// FUNCTION
+//****************************************************************************
+/**
+    check whether queue is empty
+    \return :   FALSE   Queue is not empty
+        TRU Queue is empty
+*/
+unsigned char
+RtbQueueIsEmpty(
+   IN RTB_QUEUE_HEAD* RtkQueueHead
+)
+{
+    //return ListIsEmpty(&RtkQueueHead->List);
+    return  RtkQueueHead->QueueLen > 0 ? FALSE : TRUE;
+}
+
+/**
+    Allocate a RTK_BUFFER with specified data length and reserved headroom.
+    If caller does not know actual headroom to reserve for further usage, specify it to zero to use default value.
+    \param [IN]     Length            <uint32_t>        : current data buffer length to allcated
+    \param [IN]     HeadRoom     <uint32_t>         : if caller knows reserved head space, set it; otherwise set 0 to use default value
+    \return pointer to RTK_BUFFER if succeed, null otherwise
+*/
+RTK_BUFFER*
+RtbAllocate(
+    uint32_t Length,
+    uint32_t HeadRoom
+    )
+{
+    RTK_BUFFER* Rtb = NULL;
+    ///Rtb buffer length:
+    ///     RTK_BUFFER   48
+    ///     HeadRoom      HeadRomm or 12
+    ///     Length
+    ///memory size: 48 + Length + 12(default) + 8*2(header for each memory) ---> a multiple of 8
+    ///example:       (48 + 8)+ (300 + 12 + 8) = 372
+    Rtb = malloc( sizeof(RTK_BUFFER) );
+    if(Rtb)
+    {
+        uint32_t BufferLen = HeadRoom ? (Length + HeadRoom) : (Length + DEFAULT_HEADER_SIZE);
+        BufferLen = RTB_DATA_ALIGN(BufferLen);
+        Rtb->Head = malloc(BufferLen);
+        if(Rtb->Head)
+        {
+            Rtb->HeadRoom = HeadRoom ? HeadRoom : DEFAULT_HEADER_SIZE;
+            Rtb->Data = Rtb->Head + Rtb->HeadRoom;
+            Rtb->End = Rtb->Data;
+            Rtb->Tail = Rtb->End + Length;
+            Rtb->Length = 0;
+            ListInitializeHeader(&Rtb->List);
+            Rtb->RefCount = 1;
+            return Rtb;
+        }
+    }
+
+    if (Rtb)
+    {
+        if (Rtb->Head)
+        {
+            free(Rtb->Head);
+        }
+
+        free(Rtb);
+    }
+    return NULL;
+}
+
+
+/**
+    Free specified Rtk_buffer
+    \param [IN]     RtkBuffer            <RTK_BUFFER*>        : buffer to free
+*/
+void
+RtbFree(
+    RTK_BUFFER* RtkBuffer
+)
+{
+    if(RtkBuffer)
+    {
+        free(RtkBuffer->Head);
+        free(RtkBuffer);
+    }
+    return;
+}
+
+/**
+    Add a specified length protocal header to the start of data buffer hold by specified rtk_buffer.
+    This function extends used data area of the buffer at the buffer start.
+    \param [IN OUT]     RtkBuffer            <RTK_BUFFER*>        : data buffer to add
+    \param [IN]            Length                <uint32_t>                 : header length
+    \return  Pointer to the first byte of the extra data is returned
+*/
+uint8_t*
+RtbAddHead(
+    RTK_BUFFER* RtkBuffer,
+    uint32_t                 Length
+    )
+{
+
+    if ((uint32_t)(RtkBuffer->Data - RtkBuffer->Head) >= Length)
+    {
+        RtkBuffer->Data -= Length;
+        RtkBuffer->Length += Length;
+        RtkBuffer->HeadRoom -= Length;
+        return RtkBuffer->Data;
+    }
+
+    return NULL;
+}
+/**
+    Remove a specified length data from the start of data buffer hold by specified rtk_buffer.
+    This function returns the memory to the headroom.
+    \param [IN OUT]     RtkBuffer            <RTK_BUFFER*>        : data buffer to remove
+    \param [IN]            Length                <uint32_t>                 : header length
+    \return  Pointer to the next data in the buffer is returned, usually useless
+*/
+unsigned char
+RtbRemoveHead(
+    RTK_BUFFER* RtkBuffer,
+    uint32_t                 Length
+    )
+{
+
+    if (RtkBuffer->Length >= Length)
+    {
+        RtkBuffer->Data += Length;
+        RtkBuffer->Length -= Length;
+        RtkBuffer->HeadRoom += Length;
+        return  TRUE;
+    }
+
+    return FALSE;
+}
+
+/**
+    Add a specified length protocal header to the end of data buffer hold by specified rtk_buffer.
+    This function extends used data area of the buffer at the buffer end.
+    \param [IN OUT]     RtkBuffer            <RTK_BUFFER*>        : data buffer to add
+    \param [IN]            Length                <uint32_t>                 : header length
+    \return  Pointer to the first byte of the extra data is returned
+*/
+uint8_t*
+RtbAddTail(
+    RTK_BUFFER* RtkBuffer,
+    uint32_t                 Length
+    )
+{
+
+    if ((uint32_t)(RtkBuffer->Tail - RtkBuffer->End) >= Length)
+    {
+        uint8_t* Tmp = RtkBuffer->End;
+        RtkBuffer->End += Length;
+        RtkBuffer->Length += Length;
+        return Tmp;
+    }
+
+    return NULL;
+}
+
+unsigned char
+RtbRemoveTail(
+    IN OUT RTK_BUFFER * RtkBuffer,
+    IN     uint32_t       Length
+)
+{
+
+    if ((uint32_t)(RtkBuffer->End - RtkBuffer->Data) >= Length)
+    {
+        RtkBuffer->End -= Length;
+        RtkBuffer->Length -= Length;
+        return TRUE;
+    }
+
+    return FALSE;
+}
+//****************************************************************************
+// RTB list manipulation
+//****************************************************************************
+/**
+    Initialize a rtb queue.
+    \return  Initilized rtb queue if succeed, otherwise NULL
+*/
+RTB_QUEUE_HEAD*
+RtbQueueInit(
+)
+{
+    RTB_QUEUE_HEAD* RtbQueue = NULL;
+
+    RtbQueue = malloc(sizeof(RTB_QUEUE_HEAD));
+    if(RtbQueue)
+    {
+        pthread_mutex_init(&RtbQueue->Lock, NULL);
+        ListInitializeHeader(&RtbQueue->List);
+        RtbQueue->QueueLen = 0;
+        return RtbQueue;
+    }
+
+    //error code comes here
+    if (RtbQueue)
+    {
+        free(RtbQueue);
+    }
+    return NULL;
+
+}
+
+/**
+    Free a rtb queue.
+    \param [IN]     RtkQueueHead        <RTB_QUEUE_HEAD*>        : Rtk Queue
+*/
+void
+RtbQueueFree(
+    RTB_QUEUE_HEAD* RtkQueueHead
+    )
+{
+    if (RtkQueueHead)
+    {
+
+
+        RtbEmptyQueue(RtkQueueHead);
+        pthread_mutex_destroy(&RtkQueueHead->Lock);
+        free(RtkQueueHead);
+    }
+}
+
+/**
+    Queue specified RtkBuffer into a RtkQueue at list tail.
+    \param [IN OUT]     RtkQueueHead        <RTB_QUEUE_HEAD*>        : Rtk Queue
+    \param [IN]            RtkBuffer                <RTK_BUFFER*>                 : Rtk buffer to add
+*/
+void
+RtbQueueTail(
+    IN OUT RTB_QUEUE_HEAD* RtkQueueHead,
+    IN RTK_BUFFER*                 RtkBuffer
+    )
+{
+    pthread_mutex_lock(&RtkQueueHead->Lock);
+    ListAddToTail(&RtkBuffer->List, &RtkQueueHead->List);
+    RtkQueueHead->QueueLen++;
+    pthread_mutex_unlock(&RtkQueueHead->Lock);
+}
+
+/**
+    Queue specified RtkBuffer into a RtkQueue at list Head.
+    \param [IN OUT]     RtkQueueHead        <RTB_QUEUE_HEAD*>        : Rtk Queue
+    \param [IN]            RtkBuffer                <RTK_BUFFER*>                 : Rtk buffer to add
+*/
+void
+RtbQueueHead(
+    IN OUT RTB_QUEUE_HEAD* RtkQueueHead,
+    IN RTK_BUFFER*                 RtkBuffer
+    )
+{
+    pthread_mutex_lock(&RtkQueueHead->Lock);
+    ListAddToHead(&RtkBuffer->List, &RtkQueueHead->List);
+    RtkQueueHead->QueueLen++;
+    pthread_mutex_unlock(&RtkQueueHead->Lock);
+}
+
+
+/**
+    Insert new Rtkbuffer in the old buffer
+    \param [IN OUT]     RtkQueueHead        <RTB_QUEUE_HEAD*>        : Rtk Queue
+    \param [IN]            OldRtkBuffer                <RTK_BUFFER*>                 : old rtk buffer
+    \param [IN]            NewRtkBuffer                <RTK_BUFFER*>                 : Rtk buffer to add
+*/
+void
+RtbInsertBefore(
+    IN OUT RTB_QUEUE_HEAD* RtkQueueHead,
+    IN RTK_BUFFER*  pOldRtkBuffer,
+    IN RTK_BUFFER*  pNewRtkBuffer
+)
+{
+    pthread_mutex_lock(&RtkQueueHead->Lock);
+    ListAdd(&pNewRtkBuffer->List, pOldRtkBuffer->List.Prev, &pOldRtkBuffer->List);
+    RtkQueueHead->QueueLen++;
+    pthread_mutex_unlock(&RtkQueueHead->Lock);
+}
+
+/**
+    check whether the buffer is the last node in the queue
+*/
+unsigned char
+RtbNodeIsLast(
+    IN RTB_QUEUE_HEAD* RtkQueueHead,
+    IN RTK_BUFFER*                 pRtkBuffer
+)
+{
+    RTK_BUFFER* pBuf;
+    pthread_mutex_lock(&RtkQueueHead->Lock);
+
+    pBuf = (RTK_BUFFER*)RtkQueueHead->List.Prev;
+    if(pBuf == pRtkBuffer)
+    {
+        pthread_mutex_unlock(&RtkQueueHead->Lock);
+        return TRUE;
+    }
+    pthread_mutex_unlock(&RtkQueueHead->Lock);
+    return FALSE;
+}
+
+/**
+    get the next buffer node after the specified buffer in the queue
+    if the specified buffer is the last node in the queue , return NULL
+    \param [IN]     RtkBuffer        <RTK_BUFFER*>        : Rtk Queue
+    \param [IN]     RtkBuffer        <RTK_BUFFER*>        : Rtk buffer
+    \return node after the specified buffer
+*/
+RTK_BUFFER*
+RtbQueueNextNode(
+    IN RTB_QUEUE_HEAD* RtkQueueHead,
+    IN RTK_BUFFER*                 pRtkBuffer
+)
+{
+    RTK_BUFFER* pBuf;
+    pthread_mutex_lock(&RtkQueueHead->Lock);
+    pBuf = (RTK_BUFFER*)RtkQueueHead->List.Prev;
+    if(pBuf == pRtkBuffer)
+    {
+        pthread_mutex_unlock(&RtkQueueHead->Lock);
+        return NULL;    ///< if it is already the last node in the queue , return NULL
+    }
+    pBuf = (RTK_BUFFER*)pRtkBuffer->List.Next;
+    pthread_mutex_unlock(&RtkQueueHead->Lock);
+    return pBuf;    ///< return next node after this node
+}
+
+/**
+    Delete specified RtkBuffer from a RtkQueue.
+    It don't hold spinlock itself, so caller must hold it at someplace.
+    \param [IN OUT]     RtkQueueHead        <RTB_QUEUE_HEAD*>        : Rtk Queue
+    \param [IN]            RtkBuffer                <RTK_BUFFER*>                 : Rtk buffer to Remove
+*/
+void
+RtbRemoveNode(
+    IN OUT RTB_QUEUE_HEAD* RtkQueueHead,
+    IN RTK_BUFFER*                 RtkBuffer
+)
+{
+    RtkQueueHead->QueueLen--;
+    ListDeleteNode(&RtkBuffer->List);
+}
+
+
+/**
+    Get the RtkBuffer which is the head of a RtkQueue
+    \param [IN OUT]     RtkQueueHead        <RTB_QUEUE_HEAD*>        : Rtk Queue
+    \return head of the RtkQueue , otherwise NULL
+*/
+RTK_BUFFER*
+RtbTopQueue(
+    IN RTB_QUEUE_HEAD* RtkQueueHead
+)
+{
+    RTK_BUFFER* Rtb = NULL;
+    pthread_mutex_lock(&RtkQueueHead->Lock);
+
+    if (RtbQueueIsEmpty(RtkQueueHead))
+    {
+        pthread_mutex_unlock(&RtkQueueHead->Lock);
+        return NULL;
+    }
+
+    Rtb = (RTK_BUFFER*)RtkQueueHead->List.Next;
+    pthread_mutex_unlock(&RtkQueueHead->Lock);
+
+    return Rtb;
+}
+
+/**
+    Remove a RtkBuffer from specified rtkqueue at list tail.
+    \param [IN OUT]     RtkQueueHead        <RTB_QUEUE_HEAD*>        : Rtk Queue
+    \return    removed rtkbuffer if succeed, otherwise NULL
+*/
+RTK_BUFFER*
+RtbDequeueTail(
+    IN OUT RTB_QUEUE_HEAD* RtkQueueHead
+)
+{
+    RTK_BUFFER* Rtb = NULL;
+
+    pthread_mutex_lock(&RtkQueueHead->Lock);
+    if (RtbQueueIsEmpty(RtkQueueHead))
+    {
+         pthread_mutex_unlock(&RtkQueueHead->Lock);
+         return NULL;
+    }
+    Rtb = (RTK_BUFFER*)RtkQueueHead->List.Prev;
+    RtbRemoveNode(RtkQueueHead, Rtb);
+    pthread_mutex_unlock(&RtkQueueHead->Lock);
+
+    return Rtb;
+}
+
+/**
+    Remove a RtkBuffer from specified rtkqueue at list head.
+    \param [IN OUT]     RtkQueueHead        <RTB_QUEUE_HEAD*>        : Rtk Queue
+    \return    removed rtkbuffer if succeed, otherwise NULL
+*/
+RTK_BUFFER*
+RtbDequeueHead(
+    IN OUT RTB_QUEUE_HEAD* RtkQueueHead
+    )
+{
+    RTK_BUFFER* Rtb = NULL;
+    pthread_mutex_lock(&RtkQueueHead->Lock);
+
+     if (RtbQueueIsEmpty(RtkQueueHead))
+     {
+         pthread_mutex_unlock(&RtkQueueHead->Lock);
+         return NULL;
+     }
+    Rtb = (RTK_BUFFER*)RtkQueueHead->List.Next;
+    RtbRemoveNode(RtkQueueHead, Rtb);
+    pthread_mutex_unlock(&RtkQueueHead->Lock);
+    return Rtb;
+}
+
+/**
+    Get current rtb queue's length.
+    \param [IN]     RtkQueueHead        <RTB_QUEUE_HEAD*>        : Rtk Queue
+    \return    current queue's length
+*/
+signed long RtbGetQueueLen(
+    IN RTB_QUEUE_HEAD* RtkQueueHead
+    )
+{
+    return RtkQueueHead->QueueLen;
+}
+
+/**
+    Empty the rtkqueue.
+    \param [IN OUT]     RtkQueueHead        <RTB_QUEUE_HEAD*>        : Rtk Queue
+*/
+void
+RtbEmptyQueue(
+    IN OUT RTB_QUEUE_HEAD* RtkQueueHead
+    )
+{
+    RTK_BUFFER* Rtb = NULL;
+    pthread_mutex_lock(&RtkQueueHead->Lock);
+
+    while( !RtbQueueIsEmpty(RtkQueueHead))
+    {
+        Rtb = (RTK_BUFFER*)RtkQueueHead->List.Next;
+        RtbRemoveNode(RtkQueueHead, Rtb);
+        RtbFree(Rtb);
+    }
+
+    pthread_mutex_unlock(&RtkQueueHead->Lock);
+    return;
+}
+
+
+///Annie_tmp
+unsigned char
+RtbCheckQueueLen(IN RTB_QUEUE_HEAD* RtkQueueHead, IN uint8_t Len)
+{
+    return RtkQueueHead->QueueLen < Len ? TRUE : FALSE;
+}
+
+/**
+    clone buffer for upper or lower layer, because original buffer should be stored in l2cap
+    \param <RTK_BUFFER* pDataBuffer: original buffer
+    \return cloned buffer
+*/
+RTK_BUFFER*
+RtbCloneBuffer(
+    IN RTK_BUFFER* pDataBuffer
+)
+{
+    RTK_BUFFER* pNewBuffer = NULL;
+    if(pDataBuffer)
+    {
+        pNewBuffer = RtbAllocate(pDataBuffer->Length,0);
+        if(!pNewBuffer)
+        {
+            return NULL;
+        }
+        if(pDataBuffer && pDataBuffer->Data)
+            memcpy(pNewBuffer->Data, pDataBuffer->Data, pDataBuffer->Length);
+        else
+        {
+            RtbFree(pNewBuffer);
+            return NULL;
+        }
+
+        pNewBuffer->Length = pDataBuffer->Length;
+    }
+    return pNewBuffer;
+}
diff --git a/rtkbt/code/bt/hci/src/btsnoop.c b/rtkbt/code/bt/hci/src/btsnoop.c
new file mode 100755
index 0000000..8d2a6b9
--- /dev/null
+++ b/rtkbt/code/bt/hci/src/btsnoop.c
@@ -0,0 +1,245 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_snoop"
+
+#include <arpa/inet.h>
+#include <assert.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <inttypes.h>
+#include <limits.h>
+#include <netinet/in.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <unistd.h>
+
+#include "bt_types.h"
+#include "hci/include/btsnoop.h"
+#include "hci/include/btsnoop_mem.h"
+#include "hci_layer.h"
+#include "osi/include/log.h"
+#include "stack_config.h"
+
+typedef enum {
+  kCommandPacket = 1,
+  kAclPacket = 2,
+  kScoPacket = 3,
+  kEventPacket = 4
+} packet_type_t;
+
+// Epoch in microseconds since 01/01/0000.
+static const uint64_t BTSNOOP_EPOCH_DELTA = 0x00dcddb30f2f8000ULL;
+
+static const stack_config_t *stack_config;
+
+static int logfile_fd = INVALID_FD;
+static bool module_started;
+static bool is_logging;
+static bool logging_enabled_via_api;
+#ifdef BLUETOOTH_RTK
+extern unsigned int rtkbt_logfilter;
+#endif
+// TODO(zachoverflow): merge btsnoop and btsnoop_net together
+void btsnoop_net_open();
+void btsnoop_net_close();
+void btsnoop_net_write(const void *data, size_t length);
+
+static void btsnoop_write_packet(packet_type_t type, const uint8_t *packet, bool is_received);
+static void update_logging();
+
+// Module lifecycle functions
+
+static future_t *start_up(void) {
+  module_started = true;
+  update_logging();
+
+  return NULL;
+}
+
+static future_t *shut_down(void) {
+  module_started = false;
+  update_logging();
+
+  return NULL;
+}
+
+EXPORT_SYMBOL const module_t btsnoop_module = {
+  .name = BTSNOOP_MODULE,
+  .init = NULL,
+  .start_up = start_up,
+  .shut_down = shut_down,
+  .clean_up = NULL,
+  .dependencies = {
+    STACK_CONFIG_MODULE,
+    NULL
+  }
+};
+
+// Interface functions
+
+static void set_api_wants_to_log(bool value) {
+  logging_enabled_via_api = value;
+  update_logging();
+}
+
+static void capture(const BT_HDR *buffer, bool is_received) {
+  const uint8_t *p = buffer->data + buffer->offset;
+
+  btsnoop_mem_capture(buffer);
+
+  if (logfile_fd == INVALID_FD)
+    return;
+#ifdef BLUETOOTH_RTK
+  if ((rtkbt_logfilter == 1) && (((*p == 0x94) && ((*(p+1) == 0xfc))) || (*(p+3) == 0x94 && *(p+4) == 0xfc)))
+    return ;
+#endif
+  switch (buffer->event & MSG_EVT_MASK) {
+    case MSG_HC_TO_STACK_HCI_EVT:
+      btsnoop_write_packet(kEventPacket, p, false);
+      break;
+    case MSG_HC_TO_STACK_HCI_ACL:
+    case MSG_STACK_TO_HC_HCI_ACL:
+      btsnoop_write_packet(kAclPacket, p, is_received);
+      break;
+    case MSG_HC_TO_STACK_HCI_SCO:
+    case MSG_STACK_TO_HC_HCI_SCO:
+      btsnoop_write_packet(kScoPacket, p, is_received);
+      break;
+    case MSG_STACK_TO_HC_HCI_CMD:
+      btsnoop_write_packet(kCommandPacket, p, true);
+      break;
+  }
+}
+
+static const btsnoop_t interface = {
+  set_api_wants_to_log,
+  capture
+};
+
+const btsnoop_t *btsnoop_get_interface() {
+  stack_config = stack_config_get_interface();
+  return &interface;
+}
+
+// Internal functions
+
+static uint64_t btsnoop_timestamp(void) {
+  struct timeval tv;
+  gettimeofday(&tv, NULL);
+
+  // Timestamp is in microseconds.
+  uint64_t timestamp = tv.tv_sec * 1000 * 1000LL;
+  timestamp += tv.tv_usec;
+  timestamp += BTSNOOP_EPOCH_DELTA;
+  return timestamp;
+}
+
+static void update_logging() {
+  bool should_log = module_started &&
+    (logging_enabled_via_api || stack_config->get_btsnoop_turned_on());
+
+  if (should_log == is_logging)
+    return;
+
+  is_logging = should_log;
+  if (should_log) {
+    btsnoop_net_open();
+
+    const char *log_path = stack_config->get_btsnoop_log_path();
+
+    // Save the old log if configured to do so
+    if (stack_config->get_btsnoop_should_save_last()) {
+      char last_log_path[PATH_MAX];
+      snprintf(last_log_path, PATH_MAX, "%s.%" PRIu64, log_path,
+               btsnoop_timestamp());
+      if (!rename(log_path, last_log_path) && errno != ENOENT)
+        LOG_ERROR(LOG_TAG, "%s unable to rename '%s' to '%s': %s", __func__, log_path, last_log_path, strerror(errno));
+    }
+
+    logfile_fd = open(log_path, O_WRONLY | O_CREAT | O_TRUNC, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH);
+    if (logfile_fd == INVALID_FD) {
+      LOG_ERROR(LOG_TAG, "%s unable to open '%s': %s", __func__, log_path, strerror(errno));
+      is_logging = false;
+      return;
+    }
+
+    write(logfile_fd, "btsnoop\0\0\0\0\1\0\0\x3\xea", 16);
+  } else {
+    if (logfile_fd != INVALID_FD)
+      close(logfile_fd);
+
+    logfile_fd = INVALID_FD;
+    btsnoop_net_close();
+  }
+}
+
+static void btsnoop_write(const void *data, size_t length) {
+  if (logfile_fd != INVALID_FD)
+    write(logfile_fd, data, length);
+
+  btsnoop_net_write(data, length);
+}
+
+static void btsnoop_write_packet(packet_type_t type, const uint8_t *packet, bool is_received) {
+  int length_he = 0;
+  int length;
+  int flags;
+  int drops = 0;
+  switch (type) {
+    case kCommandPacket:
+      length_he = packet[2] + 4;
+      flags = 2;
+      break;
+    case kAclPacket:
+      length_he = (packet[3] << 8) + packet[2] + 5;
+      flags = is_received;
+      break;
+    case kScoPacket:
+      length_he = packet[2] + 4;
+      flags = is_received;
+      break;
+    case kEventPacket:
+      length_he = packet[1] + 3;
+      flags = 3;
+      break;
+  }
+
+  uint64_t timestamp = btsnoop_timestamp();
+  uint32_t time_hi = timestamp >> 32;
+  uint32_t time_lo = timestamp & 0xFFFFFFFF;
+
+  length = htonl(length_he);
+  flags = htonl(flags);
+  drops = htonl(drops);
+  time_hi = htonl(time_hi);
+  time_lo = htonl(time_lo);
+
+  btsnoop_write(&length, 4);
+  btsnoop_write(&length, 4);
+  btsnoop_write(&flags, 4);
+  btsnoop_write(&drops, 4);
+  btsnoop_write(&time_hi, 4);
+  btsnoop_write(&time_lo, 4);
+  btsnoop_write(&type, 1);
+  btsnoop_write(packet, length_he - 1);
+}
diff --git a/rtkbt/code/bt/hci/src/btsnoop_mem.c b/rtkbt/code/bt/hci/src/btsnoop_mem.c
new file mode 100755
index 0000000..6b5d6c5
--- /dev/null
+++ b/rtkbt/code/bt/hci/src/btsnoop_mem.c
@@ -0,0 +1,66 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2015 Google Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#include <assert.h>
+#include <time.h>
+
+#include "hci/include/btsnoop_mem.h"
+
+static btsnoop_data_cb data_callback = NULL;
+
+void btsnoop_mem_set_callback(btsnoop_data_cb cb) {
+  data_callback = cb;
+}
+
+void btsnoop_mem_capture(const BT_HDR *packet) {
+  if (!data_callback)
+    return;
+
+  assert(packet);
+
+  const uint8_t *data = &packet->data[packet->offset];
+  const uint16_t type = packet->event & BT_EVT_MASK;
+  size_t length = 0;
+
+  switch (type) {
+    case BT_EVT_TO_LM_HCI_CMD:
+      if (packet->len > 2)
+        length = data[2] + 3;
+      break;
+
+    case BT_EVT_TO_BTU_HCI_EVT:
+      if (packet->len > 1)
+        length = data[1] + 2;
+      break;
+
+    case BT_EVT_TO_LM_HCI_ACL:
+    case BT_EVT_TO_BTU_HCI_ACL:
+      if (packet->len > 3)
+        length = (data[2] | (data[3] << 8)) + 4;
+      break;
+
+    case BT_EVT_TO_LM_HCI_SCO:
+    case BT_EVT_TO_BTU_HCI_SCO:
+      if (packet->len > 2)
+        length = data[2] + 3;
+      break;
+  }
+
+  if (length)
+    (*data_callback)(type, data, length);
+}
diff --git a/rtkbt/code/bt/hci/src/btsnoop_net.c b/rtkbt/code/bt/hci/src/btsnoop_net.c
new file mode 100755
index 0000000..0bfad4e
--- /dev/null
+++ b/rtkbt/code/bt/hci/src/btsnoop_net.c
@@ -0,0 +1,153 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2013 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_snoop_net"
+
+#include <assert.h>
+#include <errno.h>
+#include <netinet/in.h>
+#include <pthread.h>
+#include <stdbool.h>
+#include <string.h>
+#include <sys/prctl.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include "osi/include/log.h"
+#include "osi/include/osi.h"
+
+static void safe_close_(int *fd);
+static void *listen_fn_(void *context);
+
+static const char *LISTEN_THREAD_NAME_ = "btsnoop_net_listen";
+static const int LOCALHOST_ = 0x7F000001;
+static const int LISTEN_PORT_ = 8872;
+
+static pthread_t listen_thread_;
+static bool listen_thread_valid_ = false;
+static pthread_mutex_t client_socket_lock_ = PTHREAD_MUTEX_INITIALIZER;
+static int listen_socket_ = -1;
+static int client_socket_ = -1;
+
+void btsnoop_net_open() {
+#if (!defined(BT_NET_DEBUG) || (BT_NET_DEBUG != TRUE))
+  return;               // Disable using network sockets for security reasons
+#endif
+
+  listen_thread_valid_ = (pthread_create(&listen_thread_, NULL, listen_fn_, NULL) == 0);
+  if (!listen_thread_valid_) {
+    LOG_ERROR(LOG_TAG, "%s pthread_create failed: %s", __func__, strerror(errno));
+  } else {
+    LOG_DEBUG(LOG_TAG, "initialized");
+  }
+}
+
+void btsnoop_net_close() {
+#if (!defined(BT_NET_DEBUG) || (BT_NET_DEBUG != TRUE))
+  return;               // Disable using network sockets for security reasons
+#endif
+
+  if (listen_thread_valid_) {
+    shutdown(listen_socket_, SHUT_RDWR);
+    pthread_join(listen_thread_, NULL);
+    safe_close_(&client_socket_);
+    listen_thread_valid_ = false;
+  }
+}
+
+void btsnoop_net_write(const void *data, size_t length) {
+#if (!defined(BT_NET_DEBUG) || (BT_NET_DEBUG != TRUE))
+  return;               // Disable using network sockets for security reasons
+#endif
+
+  pthread_mutex_lock(&client_socket_lock_);
+  if (client_socket_ != -1) {
+    ssize_t ret;
+    OSI_NO_INTR(ret = send(client_socket_, data, length, 0));
+
+    if (ret == -1 && errno == ECONNRESET) {
+      safe_close_(&client_socket_);
+    }
+  }
+  pthread_mutex_unlock(&client_socket_lock_);
+}
+
+static void *listen_fn_(UNUSED_ATTR void *context) {
+
+  prctl(PR_SET_NAME, (unsigned long)LISTEN_THREAD_NAME_, 0, 0, 0);
+
+  listen_socket_ = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
+  if (listen_socket_ == -1) {
+    LOG_ERROR(LOG_TAG, "%s socket creation failed: %s", __func__, strerror(errno));
+    goto cleanup;
+  }
+
+  int enable = 1;
+  if (setsockopt(listen_socket_, SOL_SOCKET, SO_REUSEADDR, &enable, sizeof(enable)) == -1) {
+    LOG_ERROR(LOG_TAG, "%s unable to set SO_REUSEADDR: %s", __func__, strerror(errno));
+    goto cleanup;
+  }
+
+  struct sockaddr_in addr;
+  addr.sin_family = AF_INET;
+  addr.sin_addr.s_addr = htonl(LOCALHOST_);
+  addr.sin_port = htons(LISTEN_PORT_);
+  if (bind(listen_socket_, (struct sockaddr *)&addr, sizeof(addr)) == -1) {
+    LOG_ERROR(LOG_TAG, "%s unable to bind listen socket: %s", __func__, strerror(errno));
+    goto cleanup;
+  }
+
+  if (listen(listen_socket_, 10) == -1) {
+    LOG_ERROR(LOG_TAG, "%s unable to listen: %s", __func__, strerror(errno));
+    goto cleanup;
+  }
+
+  for (;;) {
+    int client_socket;
+    OSI_NO_INTR(client_socket = accept(listen_socket_, NULL, NULL));
+    if (client_socket == -1) {
+      if (errno == EINVAL || errno == EBADF) {
+        break;
+      }
+      LOG_WARN(LOG_TAG, "%s error accepting socket: %s", __func__, strerror(errno));
+      continue;
+    }
+
+    /* When a new client connects, we have to send the btsnoop file header. This allows
+       a decoder to treat the session as a new, valid btsnoop file. */
+    pthread_mutex_lock(&client_socket_lock_);
+    safe_close_(&client_socket_);
+    client_socket_ = client_socket;
+
+    OSI_NO_INTR(send(client_socket_, "btsnoop\0\0\0\0\1\0\0\x3\xea", 16, 0));
+    pthread_mutex_unlock(&client_socket_lock_);
+  }
+
+cleanup:
+  safe_close_(&listen_socket_);
+  return NULL;
+}
+
+static void safe_close_(int *fd) {
+  assert(fd != NULL);
+  if (*fd != -1) {
+    close(*fd);
+    *fd = -1;
+  }
+}
diff --git a/rtkbt/code/bt/hci/src/buffer_allocator.c b/rtkbt/code/bt/hci/src/buffer_allocator.c
new file mode 100755
index 0000000..e5e3504
--- /dev/null
+++ b/rtkbt/code/bt/hci/src/buffer_allocator.c
@@ -0,0 +1,36 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#include <assert.h>
+
+#include "buffer_allocator.h"
+#include "bt_common.h"
+
+static void *buffer_alloc(size_t size) {
+  assert(size <= BT_DEFAULT_BUFFER_SIZE);
+  return osi_malloc(size);
+}
+
+static const allocator_t interface = {
+  buffer_alloc,
+  osi_free
+};
+
+const allocator_t *buffer_allocator_get_interface() {
+  return &interface;
+}
diff --git a/rtkbt/code/bt/hci/src/hci_audio.c b/rtkbt/code/bt/hci/src/hci_audio.c
new file mode 100755
index 0000000..ec126b8
--- /dev/null
+++ b/rtkbt/code/bt/hci/src/hci_audio.c
@@ -0,0 +1,38 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2015 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_hci_audio"
+
+#include "hci/include/hci_audio.h"
+
+#include "hci/include/bt_vendor_lib.h"
+#include "hci/include/vendor.h"
+#include "osi/include/log.h"
+
+void set_audio_state(uint16_t handle, sco_codec_t codec, sco_state_t state)
+{
+    LOG_INFO(LOG_TAG, "%s handle:%d codec:0x%x state:%d", __func__, handle, codec, state);
+
+    bt_vendor_op_audio_state_t audio_state;
+
+    audio_state.handle = handle;
+    audio_state.peer_codec = codec;
+    audio_state.state = state;
+
+    vendor_get_interface()->send_command(VENDOR_SET_AUDIO_STATE, &audio_state);
+}
diff --git a/rtkbt/code/bt/hci/src/hci_h5.c b/rtkbt/code/bt/hci/src/hci_h5.c
new file mode 100755
index 0000000..5203816
--- /dev/null
+++ b/rtkbt/code/bt/hci/src/hci_h5.c
@@ -0,0 +1,2975 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2016 Realtek Corporation.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+/******************************************************************************
+*
+*	Module Name:
+*	    hci_h5.c
+*
+*	Abstract:
+*	    Contain HCI transport send/receive functions for UART H5 Interface.
+*
+*	Major Change History:
+*	      When             Who       What
+*	    ---------------------------------------------------------------
+*	    2016-09-23      cc   modified
+*
+*	Notes:
+*	      This is designed for UART H5 HCI Interface in Android 6.0.
+*
+******************************************************************************/
+#define LOG_TAG "bt_h5_int"
+#include <utils/Log.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <termios.h>
+#include <errno.h>
+#include <signal.h>
+#include <time.h>
+#include <sys/prctl.h>
+#include <sys/syscall.h>
+#include <arpa/inet.h>
+#include <string.h>
+#include <linux/wait.h>
+
+#include "btsnoop.h"
+#include "hci_hal.h"
+
+#include "hci_h5_int.h"
+#include "bt_skbuff.h"
+#include "bt_list.h"
+#include "bt_hci_bdroid.h"
+#include "hci_layer.h"
+#include "userial.h"
+#include "buffer_allocator.h"
+
+
+/******************************************************************************
+**  Constants & Macros
+******************************************************************************/
+#define H5_TRACE_DATA_ENABLE 0//if you want to see data tx and rx, set H5_TRACE_DATA_ENABLE 1
+#define H5_LOG_VERBOSE      0
+#define H5_BTSNOOP_DUMP     0
+#ifndef RTK_BTSNOOP_NET_DUMP
+#define RTK_BTSNOOP_NET_DUMP    1
+#endif
+
+static const allocator_t *buffer_allocator;
+static const btsnoop_t *btsnoop;
+
+uint8_t h5_log_enable = 0;
+
+#ifndef H5_LOG_BUF_SIZE
+#define H5_LOG_BUF_SIZE  1024
+#endif
+#define H5_LOG_MAX_SIZE  (H5_LOG_BUF_SIZE - 12)
+
+
+#ifndef H5_LOG_BUF_SIZE
+#define H5_LOG_BUF_SIZE  1024
+#endif
+#define H5_LOG_MAX_SIZE  (H5_LOG_BUF_SIZE - 12)
+
+
+#define H5_BTSNOOP_PATCH "/sdcard/h5_btsnoop.cfa"
+
+#define DATA_RETRANS_COUNT  40  //40*100 = 4000ms(4s)
+#define SYNC_RETRANS_COUNT  20  //20*250 = 5000ms(5s)
+#define CONF_RETRANS_COUNT  20
+
+
+#define DATA_RETRANS_TIMEOUT_VALUE  100 //ms
+#define SYNC_RETRANS_TIMEOUT_VALUE   250
+#define CONF_RETRANS_TIMEOUT_VALUE   250
+#define WAIT_CT_BAUDRATE_READY_TIMEOUT_VALUE   250
+#define H5_HW_INIT_READY_TIMEOUT_VALUE   4000//4
+
+#define HCI_VSC_H5_INIT                0xFCEE
+
+
+/* Maximum numbers of allowed internal
+** outstanding command packets at any time
+*/
+#define INT_CMD_PKT_MAX_COUNT       8
+#define INT_CMD_PKT_IDX_MASK        0x07
+
+
+//HCI Event codes
+#define HCI_CONNECTION_COMP_EVT             0x03
+#define HCI_DISCONNECTION_COMP_EVT          0x05
+#define HCI_COMMAND_COMPLETE_EVT    0x0E
+#define HCI_COMMAND_STATUS_EVT      0x0F
+#define HCI_NUM_OF_CMP_PKTS_EVT     0x13
+#define HCI_BLE_EVT     0x3E
+
+
+#define PATCH_DATA_FIELD_MAX_SIZE     252
+#define READ_DATA_SIZE  16
+
+// HCI data types //
+#define H5_RELIABLE_PKT         0x01
+#define H5_UNRELIABLE_PKT       0x00
+
+#define H5_ACK_PKT              0x00
+#define HCI_COMMAND_PKT         0x01
+#define HCI_ACLDATA_PKT         0x02
+#define HCI_SCODATA_PKT         0x03
+#define HCI_EVENT_PKT           0x04
+#define H5_VDRSPEC_PKT          0x0E
+#define H5_LINK_CTL_PKT         0x0F
+
+#define H5_HDR_SEQ(hdr)         ((hdr)[0] & 0x07)
+#define H5_HDR_ACK(hdr)         (((hdr)[0] >> 3) & 0x07)
+#define H5_HDR_CRC(hdr)         (((hdr)[0] >> 6) & 0x01)
+#define H5_HDR_RELIABLE(hdr)    (((hdr)[0] >> 7) & 0x01)
+#define H5_HDR_PKT_TYPE(hdr)    ((hdr)[1] & 0x0f)
+#define H5_HDR_LEN(hdr)         ((((hdr)[1] >> 4) & 0xff) + ((hdr)[2] << 4))
+#define H5_HDR_SIZE             4
+
+#define H5_CFG_SLID_WIN(cfg)    ((cfg) & 0x07)
+#define H5_CFG_OOF_CNTRL(cfg)   (((cfg) >> 3) & 0x01)
+#define H5_CFG_DIC_TYPE(cfg)    (((cfg) >> 4) & 0x01)
+#define H5_CFG_VER_NUM(cfg)     (((cfg) >> 5) & 0x07)
+#define H5_CFG_SIZE             1
+
+
+
+/******************************************************************************
+**  Local type definitions
+******************************************************************************/
+
+static const uint16_t msg_evt_table[] =
+{
+    MSG_HC_TO_STACK_HCI_ERR,       /* H4_TYPE_COMMAND */
+    MSG_HC_TO_STACK_HCI_ACL,       /* H4_TYPE_ACL_DATA */
+    MSG_HC_TO_STACK_HCI_SCO,       /* H4_TYPE_SCO_DATA */
+    MSG_HC_TO_STACK_HCI_EVT        /* H4_TYPE_EVENT */
+};
+
+/* Callback function for the returned event of internal issued command */
+typedef void (*tTIMER_HANDLE_CBACK)(union sigval sigval_value);
+
+typedef struct
+{
+    uint16_t opcode;        /* OPCODE of outstanding internal commands */
+    tINT_CMD_CBACK cback;   /* Callback function when return of internal
+                             * command is received */
+} tINT_CMD_Q;
+
+typedef RTK_BUFFER sk_buff;
+
+typedef enum H5_RX_STATE
+{
+    H5_W4_PKT_DELIMITER,
+    H5_W4_PKT_START,
+    H5_W4_HDR,
+    H5_W4_DATA,
+    H5_W4_CRC
+} tH5_RX_STATE;
+
+typedef enum H5_RX_ESC_STATE
+{
+    H5_ESCSTATE_NOESC,
+    H5_ESCSTATE_ESC
+} tH5_RX_ESC_STATE;
+
+typedef enum H5_LINK_STATE
+{
+    H5_UNINITIALIZED,
+    H5_INITIALIZED,
+    H5_ACTIVE
+} tH5_LINK_STATE;
+
+
+#define H5_EVENT_RX                    0x0001
+#define H5_EVENT_EXIT                  0x0200
+
+static volatile uint8_t h5_retransfer_running = 0;
+static volatile uint16_t h5_ready_events = 0;
+static volatile uint8_t h5_data_ready_running = 0;
+
+
+/* Control block for HCISU_H5 */
+typedef struct HCI_H5_CB
+{
+    HC_BT_HDR   *p_rcv_msg;          /* Buffer to hold current rx HCI message */
+    uint32_t    int_cmd_rsp_pending;        /* Num of internal cmds pending for ack */
+    uint8_t     int_cmd_rd_idx;         /* Read index of int_cmd_opcode queue */
+    uint8_t     int_cmd_wrt_idx;        /* Write index of int_cmd_opcode queue */
+    tINT_CMD_Q  int_cmd[INT_CMD_PKT_MAX_COUNT]; /* FIFO queue */
+
+    tINT_CMD_CBACK cback_h5sync;   /* Callback function when h5 sync*/
+
+    uint8_t     sliding_window_size;
+    uint8_t     oof_flow_control;
+    uint8_t     dic_type;
+
+
+    RTB_QUEUE_HEAD *unack;      // Unack'ed packets queue
+    RTB_QUEUE_HEAD *rel;        // Reliable packets queue
+
+    RTB_QUEUE_HEAD *unrel;      // Unreliable packets queue
+    RTB_QUEUE_HEAD *recv_data;      // Unreliable packets queue
+
+
+    uint8_t     rxseq_txack;        // rxseq == txack. // expected rx SeqNumber
+    uint8_t     rxack;             // Last packet sent by us that the peer ack'ed //
+
+    uint8_t     use_crc;
+    uint8_t     is_txack_req;      // txack required? Do we need to send ack's to the peer? //
+
+    // Reliable packet sequence number - used to assign seq to each rel pkt. */
+    uint8_t     msgq_txseq;         //next pkt seq
+
+    uint16_t    message_crc;
+    uint32_t    rx_count;       //expected pkts to recv
+
+    tH5_RX_STATE        rx_state;
+    tH5_RX_ESC_STATE    rx_esc_state;
+    tH5_LINK_STATE      link_estab_state;
+
+    sk_buff     *rx_skb;
+    sk_buff     *data_skb;
+    sk_buff     *internal_skb;
+
+    timer_t     timer_data_retrans;
+    timer_t     timer_sync_retrans;
+    timer_t     timer_conf_retrans;
+    timer_t     timer_wait_ct_baudrate_ready;
+    timer_t     timer_h5_hw_init_ready;
+
+    uint32_t    data_retrans_count;
+    uint32_t    sync_retrans_count;
+    uint32_t    conf_retrans_count;
+
+    pthread_mutex_t mutex;
+    pthread_cond_t  cond;
+    pthread_t       thread_data_retrans;
+
+    pthread_mutex_t data_mutex;
+    pthread_cond_t  data_cond;
+    pthread_t       thread_data_ready_cb;
+
+    uint8_t     cleanuping;
+}tHCI_H5_CB;
+
+static tHCI_H5_CB rtk_h5;
+static pthread_mutex_t h5_wakeup_mutex = PTHREAD_MUTEX_INITIALIZER;
+
+/******************************************************************************
+**  Variables
+******************************************************************************/
+
+/* Num of allowed outstanding HCI CMD packets */
+volatile int num_hci_cmd_pkts = 1;
+extern unsigned int rtkbt_logfilter;
+
+/******************************************************************************
+**  Static variables
+******************************************************************************/
+struct patch_struct {
+    int nTxIndex;   // current sending pkt number
+    int nTotal;     // total pkt number
+    int nRxIndex;   // ack index from board
+    int nNeedRetry; // if no response from board
+};
+static struct patch_struct rtk_patch;
+
+// File descriptor for btsnoop file.
+static int hci_btsnoop_fd = -1;
+// Epoch in microseconds since 01/01/0000.
+static const uint64_t BTSNOOP_EPOCH_DELTA = 0x00dcddb30f2f8000ULL;
+
+/******************************************************************************
+**  Static function
+******************************************************************************/
+static timer_t OsAllocateTimer(tTIMER_HANDLE_CBACK timer_callback);
+static int OsStartTimer(timer_t timerid, int msec, int mode);
+static int OsStopTimer(timer_t timerid);
+static uint16_t h5_wake_up();
+
+static void h5_btsnoop_open(void);
+static void h5_btsnoop_close(void);
+static void h5_btsnoop_cleanup (void);
+static void h5_btsnoop_write(const void *data, size_t length);
+
+static hci_h5_hal_callbacks_t *h5_int_hal_callbacks;
+
+
+/******************************************************************************
+**  Externs
+******************************************************************************/
+extern void rtk_btsnoop_net_open(void);
+extern void rtk_btsnoop_net_close(void);
+extern void rtk_btsnoop_net_write(serial_data_type_t type, uint8_t *data, bool is_received);
+
+uint8_t hci_h5_send_int_cmd(uint16_t opcode, HC_BT_HDR *p_buf, tINT_CMD_CBACK p_cback);
+
+//timer API for retransfer
+int h5_alloc_data_retrans_timer();
+int h5_free_data_retrans_timer();
+int h5_stop_data_retrans_timer();
+int h5_start_data_retrans_timer();
+
+int h5_alloc_sync_retrans_timer();
+int h5_free_sync_retrans_timer();
+int h5_stop_sync_retrans_timer();
+int h5_start_sync_retrans_timer();
+
+int h5_alloc_conf_retrans_timer();
+int h5_free_conf_retrans_timer();
+int h5_stop_conf_retrans_timer();
+int h5_start_conf_retrans_timer();
+
+int h5_alloc_wait_controller_baudrate_ready_timer();
+int h5_free_wait_controller_baudrate_ready_timer();
+int h5_stop_wait_controller_baudrate_ready_timer();
+int h5_start_wait_controller_baudrate_ready_timer();
+
+int h5_alloc_hw_init_ready_timer();
+int h5_free_hw_init_ready_timer();
+int h5_stop_hw_init_ready_timer();
+int h5_start_hw_init_ready_timer();
+
+int h5_enqueue(IN sk_buff *skb);
+
+
+// bite reverse in bytes
+// 00000001 -> 10000000
+// 00000100 -> 00100000
+const uint8_t byte_rev_table[256] = {
+    0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0,
+    0x10, 0x90, 0x50, 0xd0, 0x30, 0xb0, 0x70, 0xf0,
+    0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8, 0x68, 0xe8,
+    0x18, 0x98, 0x58, 0xd8, 0x38, 0xb8, 0x78, 0xf8,
+    0x04, 0x84, 0x44, 0xc4, 0x24, 0xa4, 0x64, 0xe4,
+    0x14, 0x94, 0x54, 0xd4, 0x34, 0xb4, 0x74, 0xf4,
+    0x0c, 0x8c, 0x4c, 0xcc, 0x2c, 0xac, 0x6c, 0xec,
+    0x1c, 0x9c, 0x5c, 0xdc, 0x3c, 0xbc, 0x7c, 0xfc,
+    0x02, 0x82, 0x42, 0xc2, 0x22, 0xa2, 0x62, 0xe2,
+    0x12, 0x92, 0x52, 0xd2, 0x32, 0xb2, 0x72, 0xf2,
+    0x0a, 0x8a, 0x4a, 0xca, 0x2a, 0xaa, 0x6a, 0xea,
+    0x1a, 0x9a, 0x5a, 0xda, 0x3a, 0xba, 0x7a, 0xfa,
+    0x06, 0x86, 0x46, 0xc6, 0x26, 0xa6, 0x66, 0xe6,
+    0x16, 0x96, 0x56, 0xd6, 0x36, 0xb6, 0x76, 0xf6,
+    0x0e, 0x8e, 0x4e, 0xce, 0x2e, 0xae, 0x6e, 0xee,
+    0x1e, 0x9e, 0x5e, 0xde, 0x3e, 0xbe, 0x7e, 0xfe,
+    0x01, 0x81, 0x41, 0xc1, 0x21, 0xa1, 0x61, 0xe1,
+    0x11, 0x91, 0x51, 0xd1, 0x31, 0xb1, 0x71, 0xf1,
+    0x09, 0x89, 0x49, 0xc9, 0x29, 0xa9, 0x69, 0xe9,
+    0x19, 0x99, 0x59, 0xd9, 0x39, 0xb9, 0x79, 0xf9,
+    0x05, 0x85, 0x45, 0xc5, 0x25, 0xa5, 0x65, 0xe5,
+    0x15, 0x95, 0x55, 0xd5, 0x35, 0xb5, 0x75, 0xf5,
+    0x0d, 0x8d, 0x4d, 0xcd, 0x2d, 0xad, 0x6d, 0xed,
+    0x1d, 0x9d, 0x5d, 0xdd, 0x3d, 0xbd, 0x7d, 0xfd,
+    0x03, 0x83, 0x43, 0xc3, 0x23, 0xa3, 0x63, 0xe3,
+    0x13, 0x93, 0x53, 0xd3, 0x33, 0xb3, 0x73, 0xf3,
+    0x0b, 0x8b, 0x4b, 0xcb, 0x2b, 0xab, 0x6b, 0xeb,
+    0x1b, 0x9b, 0x5b, 0xdb, 0x3b, 0xbb, 0x7b, 0xfb,
+    0x07, 0x87, 0x47, 0xc7, 0x27, 0xa7, 0x67, 0xe7,
+    0x17, 0x97, 0x57, 0xd7, 0x37, 0xb7, 0x77, 0xf7,
+    0x0f, 0x8f, 0x4f, 0xcf, 0x2f, 0xaf, 0x6f, 0xef,
+    0x1f, 0x9f, 0x5f, 0xdf, 0x3f, 0xbf, 0x7f, 0xff,
+};
+#ifndef H5_LOG_BUF_SIZE
+#define H5_LOG_BUF_SIZE  1024
+#endif
+#define H5_LOG_MAX_SIZE  (H5_LOG_BUF_SIZE - 12)
+
+#define LOGI0(t,s) __android_log_write(ANDROID_LOG_INFO, t, s)
+
+static void H5LogMsg(const char *fmt_str, ...)
+{
+    static char buffer[H5_LOG_BUF_SIZE];
+    if(h5_log_enable == 1)
+    {
+        va_list ap;
+        va_start(ap, fmt_str);
+        vsnprintf(&buffer[0], H5_LOG_MAX_SIZE, fmt_str, ap);
+        va_end(ap);
+
+        LOGI0("H5: ", buffer);
+     }
+     else
+     {
+        return;
+     }
+}
+
+static void H5LogMsgVerbose(const char *fmt_str, ...)
+{
+    static char buffer[H5_LOG_BUF_SIZE];
+#if H5_LOG_VERBOSE
+    va_list ap;
+    va_start(ap, fmt_str);
+    vsnprintf(&buffer[0], H5_LOG_MAX_SIZE, fmt_str, ap);
+    va_end(ap);
+
+    LOGI0("H5: ", buffer);
+#else
+    return;
+#endif
+}
+
+static uint64_t h5_btsnoop_timestamp(void) {
+  struct timeval tv;
+  gettimeofday(&tv, NULL);
+
+  // Timestamp is in microseconds.
+  uint64_t timestamp = tv.tv_sec * 1000 * 1000LL;
+  timestamp += tv.tv_usec;
+  timestamp += BTSNOOP_EPOCH_DELTA;
+  return timestamp;
+}
+
+static void h5_btsnoop_write_packet(serial_data_type_t type, const uint8_t *packet, bool is_received) {
+    int length_he = 0;
+    int length;
+    int flags;
+    int drops = 0;
+    switch (type) {
+    case HCI_COMMAND_PKT:
+        length_he = packet[2] + 4;
+        flags = 2;
+    break;
+    case HCI_ACLDATA_PKT:
+        length_he = (packet[3] << 8) + packet[2] + 5;
+        flags = is_received;
+    break;
+    case HCI_SCODATA_PKT:
+        length_he = packet[2] + 4;
+        flags = is_received;
+    break;
+    case HCI_EVENT_PKT:
+        length_he = packet[1] + 3;
+        flags = 3;
+    break;
+    default:
+        break;
+    }
+
+    uint64_t timestamp = h5_btsnoop_timestamp();
+    uint32_t time_hi = timestamp >> 32;
+    uint32_t time_lo = timestamp & 0xFFFFFFFF;
+
+    length = htonl(length_he);
+    flags = htonl(flags);
+    drops = htonl(drops);
+    time_hi = htonl(time_hi);
+    time_lo = htonl(time_lo);
+
+    h5_btsnoop_write(&length, 4);
+    h5_btsnoop_write(&length, 4);
+    h5_btsnoop_write(&flags, 4);
+    h5_btsnoop_write(&drops, 4);
+    h5_btsnoop_write(&time_hi, 4);
+    h5_btsnoop_write(&time_lo, 4);
+    h5_btsnoop_write(&type, 1);
+    h5_btsnoop_write(packet, length_he - 1);
+
+}
+
+static void h5_btsnoop_open()
+{
+    if (hci_btsnoop_fd != -1) {
+      LOG_ERROR(LOG_TAG, "%s btsnoop log file is already open.", __func__);
+      return;
+    }
+
+    char fname_backup[266] = {0};
+    strncat(fname_backup, H5_BTSNOOP_PATCH, 255);
+    strcat(fname_backup, ".last");
+    rename(H5_BTSNOOP_PATCH, fname_backup);
+
+
+    hci_btsnoop_fd = open(H5_BTSNOOP_PATCH,
+                          O_WRONLY | O_CREAT | O_TRUNC,
+                          S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH);
+
+    if (hci_btsnoop_fd == -1) {
+      LOG_ERROR(LOG_TAG, "%s unable to open '%s': %s", __func__, H5_BTSNOOP_PATCH, strerror(errno));
+      return;
+    }
+
+    write(hci_btsnoop_fd, "btsnoop\0\0\0\0\1\0\0\x3\xea", 16);
+}
+
+static void h5_btsnoop_close(void) {
+    if (hci_btsnoop_fd != -1)
+        close(hci_btsnoop_fd);
+    hci_btsnoop_fd = -1;
+}
+
+static void h5_btsnoop_write(const void *data, size_t length) {
+    if (hci_btsnoop_fd != -1)
+        write(hci_btsnoop_fd, data, length);
+}
+
+static void h5_btsnoop_capture(const HC_BT_HDR *p_buf, bool is_rcvd) {
+  const uint8_t *p = (const uint8_t *)(p_buf + 1) + p_buf->offset;
+
+  if (hci_btsnoop_fd == -1)
+    return;
+
+  switch (p_buf->event & MSG_EVT_MASK) {
+    case MSG_HC_TO_STACK_HCI_EVT:
+    if((*(p + 3) == 0x94) && (*(p + 4) == 0xfc) && (*(p + 5) == 0x00)&&(rtkbt_logfilter&1)){}
+    else
+      h5_btsnoop_write_packet(HCI_EVENT_PKT, p, false);
+      break;
+    case MSG_HC_TO_STACK_HCI_ACL:
+    case MSG_STACK_TO_HC_HCI_ACL:
+      h5_btsnoop_write_packet(HCI_ACLDATA_PKT, p, is_rcvd);
+      break;
+    case MSG_HC_TO_STACK_HCI_SCO:
+    case MSG_STACK_TO_HC_HCI_SCO:
+      h5_btsnoop_write_packet(HCI_SCODATA_PKT, p, is_rcvd);
+      break;
+    case MSG_STACK_TO_HC_HCI_CMD:
+      if(((rtkbt_logfilter & 1) == 0) || (*p != 0x94) || (*(p + 1) != 0xfc))
+      h5_btsnoop_write_packet(HCI_COMMAND_PKT, p, true);
+      break;
+  }
+}
+
+// reverse bit
+static __inline uint8_t bit_rev8(uint8_t byte)
+{
+    return byte_rev_table[byte];
+}
+
+// reverse bit
+static __inline uint16_t bit_rev16(uint16_t x)
+{
+    return (bit_rev8(x & 0xff) << 8) | bit_rev8(x >> 8);
+}
+
+static const uint16_t crc_table[] =
+{
+    0x0000, 0x1081, 0x2102, 0x3183,
+    0x4204, 0x5285, 0x6306, 0x7387,
+    0x8408, 0x9489, 0xa50a, 0xb58b,
+    0xc60c, 0xd68d, 0xe70e, 0xf78f
+};
+
+// Initialise the crc calculator
+#define H5_CRC_INIT(x) x = 0xffff
+
+
+/*******************************************************************************
+**
+** Function        ms_delay
+**
+** Description     sleep unconditionally for timeout milliseconds
+**
+** Returns         None
+**
+*******************************************************************************/
+void ms_delay (uint32_t timeout)
+{
+    struct timespec delay;
+    int err;
+
+    if (timeout == 0)
+        return;
+
+    delay.tv_sec = timeout / 1000;
+    delay.tv_nsec = 1000 * 1000 * (timeout%1000);
+
+    /* [u]sleep can't be used because it uses SIGALRM */
+    do {
+        err = nanosleep(&delay, &delay);
+    } while (err < 0 && errno ==EINTR);
+}
+/***********************************************
+//
+//skb related functions
+//
+//
+//
+***********************************************/
+uint8_t *skb_get_data(IN sk_buff *skb)
+{
+    return skb->Data;
+}
+
+uint32_t skb_get_data_length(IN sk_buff *skb)
+{
+    return skb->Length;
+}
+
+sk_buff * skb_alloc(IN unsigned int len)
+{
+    sk_buff * skb = (sk_buff * )RtbAllocate(len, 0);
+    return skb;
+}
+
+void skb_free(IN OUT sk_buff **skb)
+{
+    RtbFree(*skb);
+    *skb = NULL;
+    return;
+}
+
+static  void skb_unlink(sk_buff *skb, struct _RTB_QUEUE_HEAD * list)
+{
+    RtbRemoveNode(list, skb);
+}
+
+// increase the date length in sk_buffer by len,
+// and return the increased header pointer
+uint8_t *skb_put(OUT sk_buff* skb, IN uint32_t len)
+{
+    RTK_BUFFER * rtb = (RTK_BUFFER * )skb;
+
+    return RtbAddTail(rtb, len);
+}
+
+// change skb->len to len
+// !!! len should less than skb->len
+void skb_trim( sk_buff *skb, unsigned int len)
+{
+    RTK_BUFFER * rtb = (RTK_BUFFER * )skb;
+    uint32_t skb_len = skb_get_data_length(skb);
+
+    RtbRemoveTail(rtb, (skb_len - len));
+    return;
+}
+
+uint8_t skb_get_pkt_type( sk_buff *skb)
+{
+    return BT_CONTEXT(skb)->PacketType;
+}
+
+void skb_set_pkt_type( sk_buff *skb, uint8_t pkt_type)
+{
+    BT_CONTEXT(skb)->PacketType = pkt_type;
+}
+
+// decrease the data length in sk_buffer by len,
+// and move the content forward to the header.
+// the data in header will be removed.
+void skb_pull(OUT  sk_buff * skb, IN uint32_t len)
+{
+    RTK_BUFFER * rtb = (RTK_BUFFER * )skb;
+    RtbRemoveHead(rtb, len);
+    return;
+}
+
+sk_buff * skb_alloc_and_init(IN uint8_t PktType, IN uint8_t * Data, IN uint32_t  DataLen)
+{
+    sk_buff * skb = skb_alloc(DataLen);
+    if (NULL == skb)
+    return NULL;
+    memcpy(skb_put(skb, DataLen), Data, DataLen);
+    skb_set_pkt_type(skb, PktType);
+
+    return skb;
+}
+
+static void skb_queue_head(IN RTB_QUEUE_HEAD * skb_head, IN RTK_BUFFER * skb)
+{
+    RtbQueueHead(skb_head, skb);
+}
+
+static void skb_queue_tail(IN RTB_QUEUE_HEAD * skb_head, IN RTK_BUFFER * skb)
+{
+    RtbQueueTail(skb_head, skb);
+}
+
+static RTK_BUFFER* skb_dequeue_head(IN RTB_QUEUE_HEAD * skb_head)
+{
+    return RtbDequeueHead(skb_head);
+}
+
+static RTK_BUFFER* skb_dequeue_tail(IN RTB_QUEUE_HEAD * skb_head)
+{
+    return RtbDequeueTail(skb_head);
+}
+
+static uint32_t skb_queue_get_length(IN RTB_QUEUE_HEAD * skb_head)
+{
+    return RtbGetQueueLen(skb_head);
+}
+
+
+/**
+* Add "d" into crc scope, caculate the new crc value
+*
+* @param crc crc data
+* @param d one byte data
+*/
+static void h5_crc_update(uint16_t *crc, uint8_t d)
+{
+    uint16_t reg = *crc;
+
+    reg = (reg >> 4) ^ crc_table[(reg ^ d) & 0x000f];
+    reg = (reg >> 4) ^ crc_table[(reg ^ (d >> 4)) & 0x000f];
+
+    *crc = reg;
+}
+
+struct __una_u16 { uint16_t x; };
+static __inline uint16_t __get_unaligned_cpu16(const void *p)
+{
+    const struct __una_u16 *ptr = (const struct __una_u16 *)p;
+    return ptr->x;
+}
+
+
+static __inline uint16_t get_unaligned_be16(const void *p)
+{
+    return __get_unaligned_cpu16((const uint8_t *)p);
+}
+/**
+* Get crc data.
+*
+* @param h5 realtek h5 struct
+* @return crc data
+*/
+static uint16_t h5_get_crc(tHCI_H5_CB *h5)
+{
+   uint16_t crc = 0;
+   uint8_t * data = skb_get_data(h5->rx_skb) + skb_get_data_length(h5->rx_skb) - 2;
+   crc = data[1] + (data[0] << 8);
+   return crc;
+}
+
+/**
+* Just add 0xc0 at the end of skb,
+* we can also use this to add 0xc0 at start while there is no data in skb
+*
+* @param skb socket buffer
+*/
+static void h5_slip_msgdelim(sk_buff *skb)
+{
+    const char pkt_delim = 0xc0;
+    memcpy(skb_put(skb, 1), &pkt_delim, 1);
+}
+
+/**
+* Slip ecode one byte in h5 proto, as follows:
+* 0xc0 -> 0xdb, 0xdc
+* 0xdb -> 0xdb, 0xdd
+* 0x11 -> 0xdb, 0xde
+* 0x13 -> 0xdb, 0xdf
+* others will not change
+*
+* @param skb socket buffer
+* @c pure data in the one byte
+*/
+static void h5_slip_one_byte(sk_buff *skb, uint8_t unencode_form)
+{
+    const signed char esc_c0[2] = { 0xdb, 0xdc };
+    const signed char esc_db[2] = { 0xdb, 0xdd };
+    const signed char esc_11[2] = { 0xdb, 0xde };
+    const signed char esc_13[2] = { 0xdb, 0xdf };
+
+    switch (unencode_form)
+    {
+    case 0xc0:
+        memcpy(skb_put(skb, 2), &esc_c0, 2);
+        break;
+    case 0xdb:
+        memcpy(skb_put(skb, 2), &esc_db, 2);
+        break;
+
+    case 0x11:
+    {
+        if(rtk_h5.oof_flow_control)
+        {
+            memcpy(skb_put(skb, 2), &esc_11, 2);
+        }
+        else
+        {
+            memcpy(skb_put(skb, 1), &unencode_form, 1);
+        }
+    }
+    break;
+
+    case 0x13:
+    {
+        if(rtk_h5.oof_flow_control)
+        {
+            memcpy(skb_put(skb, 2), &esc_13, 2);
+        }
+        else
+        {
+            memcpy(skb_put(skb, 1), &unencode_form, 1);
+        }
+    }
+    break;
+
+    default:
+        memcpy(skb_put(skb, 1), &unencode_form, 1);
+    }
+}
+
+/**
+* Decode one byte in h5 proto, as follows:
+* 0xdb, 0xdc -> 0xc0
+* 0xdb, 0xdd -> 0xdb
+* 0xdb, 0xde -> 0x11
+* 0xdb, 0xdf -> 0x13
+* others will not change
+*
+* @param h5 realtek h5 struct
+* @byte pure data in the one byte
+*/
+static void h5_unslip_one_byte(tHCI_H5_CB *h5, unsigned char byte)
+{
+    const uint8_t c0 = 0xc0, db = 0xdb;
+    const uint8_t oof1 = 0x11, oof2 = 0x13;
+    uint8_t *hdr = (uint8_t *)skb_get_data(h5->rx_skb);
+
+    if (H5_ESCSTATE_NOESC == h5->rx_esc_state)
+    {
+        if (0xdb == byte)
+        {
+            h5->rx_esc_state = H5_ESCSTATE_ESC;
+        }
+        else
+        {
+            memcpy(skb_put(h5->rx_skb, 1), &byte, 1);
+            //Check Pkt Header's CRC enable bit
+            if (H5_HDR_CRC(hdr) && h5->rx_state != H5_W4_CRC)
+            {
+                h5_crc_update(&h5->message_crc, byte);
+            }
+            h5->rx_count--;
+        }
+    }
+    else if(H5_ESCSTATE_ESC == h5->rx_esc_state)
+    {
+        switch (byte)
+        {
+        case 0xdc:
+            memcpy(skb_put(h5->rx_skb, 1), &c0, 1);
+            if (H5_HDR_CRC(hdr) && h5->rx_state != H5_W4_CRC)
+                h5_crc_update(&h5-> message_crc, 0xc0);
+            h5->rx_esc_state = H5_ESCSTATE_NOESC;
+            h5->rx_count--;
+            break;
+        case 0xdd:
+            memcpy(skb_put(h5->rx_skb, 1), &db, 1);
+             if (H5_HDR_CRC(hdr) && h5->rx_state != H5_W4_CRC)
+                h5_crc_update(&h5-> message_crc, 0xdb);
+            h5->rx_esc_state = H5_ESCSTATE_NOESC;
+            h5->rx_count--;
+            break;
+        case 0xde:
+            memcpy(skb_put(h5->rx_skb, 1), &oof1, 1);
+            if (H5_HDR_CRC(hdr) && h5->rx_state != H5_W4_CRC)
+                h5_crc_update(&h5-> message_crc, oof1);
+            h5->rx_esc_state = H5_ESCSTATE_NOESC;
+            h5->rx_count--;
+            break;
+        case 0xdf:
+            memcpy(skb_put(h5->rx_skb, 1), &oof2, 1);
+            if (H5_HDR_CRC(hdr) && h5->rx_state != H5_W4_CRC)
+                h5_crc_update(&h5-> message_crc, oof2);
+            h5->rx_esc_state = H5_ESCSTATE_NOESC;
+            h5->rx_count--;
+            break;
+        default:
+            LOG_ERROR(LOG_TAG, "Error: Invalid byte %02x after esc byte", byte);
+            skb_free(&h5->rx_skb);
+            h5->rx_skb = NULL;
+            h5->rx_state = H5_W4_PKT_DELIMITER;
+            h5->rx_count = 0;
+            break;
+        }
+    }
+}
+/**
+* Prepare h5 packet, packet format as follow:
+*  | LSB 4 octets  | 0 ~4095| 2 MSB
+*  |packet header | payload | data integrity check |
+*
+* pakcket header fromat is show below:
+*  | LSB 3 bits         | 3 bits             | 1 bits                       | 1 bits          |
+*  | 4 bits     | 12 bits        | 8 bits MSB
+*  |sequence number | acknowledgement number | data integrity check present | reliable packet |
+*  |packet type | payload length | header checksum
+*
+* @param h5 realtek h5 struct
+* @param data pure data
+* @param len the length of data
+* @param pkt_type packet type
+* @return socket buff after prepare in h5 proto
+*/
+static sk_buff * h5_prepare_pkt(tHCI_H5_CB *h5, uint8_t *data, signed long len, signed long pkt_type)
+{
+    sk_buff *nskb;
+    uint8_t hdr[4];
+    uint16_t H5_CRC_INIT(h5_txmsg_crc);
+    int rel, i;
+    //H5LogMsg("HCI h5_prepare_pkt");
+
+    switch (pkt_type)
+    {
+    case HCI_ACLDATA_PKT:
+    case HCI_COMMAND_PKT:
+    case HCI_EVENT_PKT:
+    rel = H5_RELIABLE_PKT;  // reliable
+    break;
+    case H5_ACK_PKT:
+    case H5_VDRSPEC_PKT:
+    case H5_LINK_CTL_PKT:
+    rel = H5_UNRELIABLE_PKT;// unreliable
+    break;
+    default:
+    LOG_ERROR(LOG_TAG, "Unknown packet type");
+    return NULL;
+    }
+
+    // Max len of packet: (original len +4(h5 hdr) +2(crc))*2
+    //   (because bytes 0xc0 and 0xdb are escaped, worst case is
+    //   when the packet is all made of 0xc0 and 0xdb :) )
+    //   + 2 (0xc0 delimiters at start and end).
+
+    nskb = skb_alloc((len + 6) * 2 + 2);
+    if (!nskb)
+    {
+        H5LogMsg("nskb is NULL");
+        return NULL;
+    }
+
+    //Add SLIP start byte: 0xc0
+    h5_slip_msgdelim(nskb);
+    // set AckNumber in SlipHeader
+    hdr[0] = h5->rxseq_txack << 3;
+    h5->is_txack_req = 0;
+
+    H5LogMsg("We request packet no(%u) to card", h5->rxseq_txack);
+    H5LogMsg("Sending packet with seqno %u and wait %u", h5->msgq_txseq, h5->rxseq_txack);
+    if (H5_RELIABLE_PKT == rel)
+    {
+        // set reliable pkt bit and SeqNumber
+        hdr[0] |= 0x80 + h5->msgq_txseq;
+        //H5LogMsg("Sending packet with seqno(%u)", h5->msgq_txseq);
+        ++(h5->msgq_txseq);
+        h5->msgq_txseq = (h5->msgq_txseq) & 0x07;
+    }
+
+    // set DicPresent bit
+    if (h5->use_crc)
+    hdr[0] |= 0x40;
+
+    // set packet type and payload length
+    hdr[1] = ((len << 4) & 0xff) | pkt_type;
+    hdr[2] = (uint8_t)(len >> 4);
+    // set checksum
+    hdr[3] = ~(hdr[0] + hdr[1] + hdr[2]);
+
+    // Put h5 header */
+    for (i = 0; i < 4; i++)
+    {
+        h5_slip_one_byte(nskb, hdr[i]);
+
+        if (h5->use_crc)
+            h5_crc_update(&h5_txmsg_crc, hdr[i]);
+    }
+
+    // Put payload */
+    for (i = 0; i < len; i++)
+    {
+        h5_slip_one_byte(nskb, data[i]);
+
+       if (h5->use_crc)
+       h5_crc_update(&h5_txmsg_crc, data[i]);
+    }
+
+    // Put CRC */
+    if (h5->use_crc)
+    {
+        h5_txmsg_crc = bit_rev16(h5_txmsg_crc);
+        h5_slip_one_byte(nskb, (uint8_t) ((h5_txmsg_crc >> 8) & 0x00ff));
+        h5_slip_one_byte(nskb, (uint8_t) (h5_txmsg_crc & 0x00ff));
+    }
+
+    // Add SLIP end byte: 0xc0
+    h5_slip_msgdelim(nskb);
+    return nskb;
+}
+/**
+* Removed controller acked packet from Host's unacked lists
+*
+* @param h5 realtek h5 struct
+*/
+static void h5_remove_acked_pkt(tHCI_H5_CB *h5)
+{
+    RT_LIST_HEAD* Head = NULL;
+    RT_LIST_ENTRY* Iter = NULL, *Temp = NULL;
+    RTK_BUFFER *skb = NULL;
+
+    int pkts_to_be_removed = 0;
+    int seqno = 0;
+    int i = 0;
+
+    pthread_mutex_lock(&h5_wakeup_mutex);
+
+    seqno = h5->msgq_txseq;
+    pkts_to_be_removed = RtbGetQueueLen(h5->unack);
+
+    while (pkts_to_be_removed)
+    {
+        if (h5->rxack == seqno)
+        break;
+
+        pkts_to_be_removed--;
+        seqno = (seqno - 1) & 0x07;
+    }
+
+    if (h5->rxack != seqno)
+    {
+        H5LogMsg("Peer acked invalid packet");
+    }
+
+
+    // remove ack'ed packet from bcsp->unack queue
+    i = 0;//  number of pkts has been removed from un_ack queue.
+    Head = (RT_LIST_HEAD *)(h5->unack);
+    LIST_FOR_EACH_SAFELY(Iter, Temp, Head)
+    {
+        skb = LIST_ENTRY(Iter, sk_buff, List);
+        if (i >= pkts_to_be_removed)
+            break;
+
+        skb_unlink(skb, h5->unack);
+        skb_free(&skb);
+        i++;
+    }
+
+    if (0 == skb_queue_get_length(h5->unack))
+    {
+        h5_stop_data_retrans_timer();
+        rtk_h5.data_retrans_count = 0;
+    }
+
+    if (i != pkts_to_be_removed)
+    {
+        H5LogMsg("Removed only (%u) out of (%u) pkts", i, pkts_to_be_removed);
+    }
+
+    pthread_mutex_unlock(&h5_wakeup_mutex);
+
+}
+
+/**
+* Realtek send pure ack, send a packet only with an ack
+*
+* @param fd uart file descriptor
+*
+*/
+
+static void hci_h5_send_pure_ack(void)
+{
+    //uint16_t bytes_sent = 0;
+    sk_buff * skb = NULL;
+    uint8_t ack_data = 0;
+
+    skb = skb_alloc_and_init(H5_ACK_PKT, &ack_data, 0);
+    if(!skb) {
+        LOG_ERROR(LOG_TAG, "skb_alloc_and_init fail!");
+        return;
+    }
+
+    H5LogMsg("H5: --->>>send pure ack");
+    h5_enqueue(skb);
+    h5_wake_up();
+
+#if 0
+    sk_buff *nskb = h5_prepare_pkt(&rtk_h5, NULL, 0, H5_ACK_PKT);
+    if(nskb == NULL)
+    {
+        ALOGE("h5_prepare_pkt allocate memory fail");
+        return;
+    }
+    H5LogMsg("H5: --->>>send pure ack");
+    uint8_t * data = skb_get_data(nskb);
+
+#if H5_TRACE_DATA_ENABLE
+    {
+        uint32_t iTemp = 0;
+        uint32_t iTempTotal = 16;
+
+        H5LogMsg("H5 TX: length(%d)", skb_get_data_length(nskb));
+        if(iTempTotal > skb_get_data_length(nskb))
+        {
+            iTempTotal = skb_get_data_length(nskb);
+        }
+
+        for(iTemp = 0; iTemp < iTempTotal; iTemp++)
+        {
+            H5LogMsg("0x%x", data[iTemp]);
+        }
+    }
+#endif
+
+    bytes_sent = h5_int_hal_callbacks->h5_int_transmit_data_cb(DATA_TYPE_H5, data, skb_get_data_length(nskb));
+    H5LogMsg("bytes_sent(%d)", bytes_sent);
+
+    skb_free(&nskb);
+#endif
+    return;
+
+}
+
+static void hci_h5_send_sync_req()
+{
+    //uint16_t bytes_sent = 0;
+    unsigned char    h5sync[2]     = {0x01, 0x7E};
+    sk_buff * skb = NULL;
+
+    skb = skb_alloc_and_init(H5_LINK_CTL_PKT, h5sync, sizeof(h5sync));
+    if(!skb) {
+        LOG_ERROR(LOG_TAG, "skb_alloc_and_init fail!");
+        return;
+    }
+    H5LogMsg("H5: --->>>send sync req");
+
+    h5_enqueue(skb);
+    h5_wake_up();
+#if 0
+    sk_buff *nskb = h5_prepare_pkt(&rtk_h5, h5sync, sizeof(h5sync), H5_LINK_CTL_PKT);
+    if(nskb == NULL)
+    {
+        ALOGE("h5_prepare_pkt allocate memory fail");
+        return;
+    }
+    H5LogMsg("H5: --->>>send sync req");
+    uint8_t * data = skb_get_data(nskb);
+
+#if H5_TRACE_DATA_ENABLE
+    {
+        uint32_t iTemp = 0;
+        uint32_t iTempTotal = 16;
+        H5LogMsg("H5 TX: length(%d)", skb_get_data_length(nskb));
+        if(iTempTotal > skb_get_data_length(nskb))
+        {
+            iTempTotal = skb_get_data_length(nskb);
+        }
+        for(iTemp = 0; iTemp < iTempTotal; iTemp++)
+        {
+            H5LogMsg("0x%x", data[iTemp]);
+        }
+    }
+#endif
+
+    bytes_sent = h5_int_hal_callbacks->h5_int_transmit_data_cb(DATA_TYPE_H5, data, skb_get_data_length(nskb));
+    H5LogMsg("bytes_sent(%d)", bytes_sent);
+
+    skb_free(&nskb);
+#endif
+    return;
+}
+
+static void hci_h5_send_sync_resp()
+{
+    //uint16_t bytes_sent = 0;
+    unsigned char h5syncresp[2] = {0x02, 0x7D};
+    sk_buff * skb = NULL;
+
+    skb = skb_alloc_and_init(H5_LINK_CTL_PKT, h5syncresp, sizeof(h5syncresp));
+    if(!skb) {
+        LOG_ERROR(LOG_TAG, "skb_alloc_and_init fail!");
+        return;
+    }
+
+    H5LogMsg("H5: --->>>send sync resp");
+    h5_enqueue(skb);
+    h5_wake_up();
+#if 0
+    sk_buff *nskb = h5_prepare_pkt(&rtk_h5, h5syncresp, sizeof(h5syncresp), H5_LINK_CTL_PKT);
+    if(nskb == NULL)
+    {
+        ALOGE("h5_prepare_pkt allocate memory fail");
+        return;
+    }
+    H5LogMsg("H5: --->>>send sync resp");
+    uint8_t * data = skb_get_data(nskb);
+
+#if H5_TRACE_DATA_ENABLE
+    {
+        uint32_t iTemp = 0;
+        uint32_t iTempTotal = 16;
+        H5LogMsg("H5 TX: length(%d)", skb_get_data_length(nskb));
+        if(iTempTotal > skb_get_data_length(nskb))
+        {
+            iTempTotal = skb_get_data_length(nskb);
+        }
+        for(iTemp = 0; iTemp < iTempTotal; iTemp++)
+        {
+            H5LogMsg("0x%x", data[iTemp]);
+        }
+    }
+#endif
+
+    bytes_sent = h5_int_hal_callbacks->h5_int_transmit_data_cb(DATA_TYPE_H5, data, skb_get_data_length(nskb));
+    H5LogMsg("bytes_sent(%d)", bytes_sent);
+
+    skb_free(&nskb);
+#endif
+    return;
+}
+
+static void hci_h5_send_conf_req()
+{
+    //uint16_t bytes_sent = 0;
+    unsigned char h5conf[3] = {0x03, 0xFC, 0x14};
+    sk_buff * skb = NULL;
+
+    skb = skb_alloc_and_init(H5_LINK_CTL_PKT, h5conf, sizeof(h5conf));
+    if(!skb) {
+        LOG_ERROR(LOG_TAG, "skb_alloc_and_init fail!");
+        return;
+    }
+
+    H5LogMsg("H5: --->>>send conf req");
+    h5_enqueue(skb);
+    h5_wake_up();
+
+#if 0
+    sk_buff *nskb = h5_prepare_pkt(&rtk_h5, h5conf, sizeof(h5conf), H5_LINK_CTL_PKT);
+    if(nskb == NULL)
+    {
+        ALOGE("h5_prepare_pkt allocate memory fail");
+        return;
+    }
+    H5LogMsg("H5: --->>>send conf req");
+    uint8_t * data = skb_get_data(nskb);
+
+#if H5_TRACE_DATA_ENABLE
+    {
+        uint32_t iTemp = 0;
+        uint32_t iTempTotal = 16;
+        H5LogMsg("H5 TX: length(%d)", skb_get_data_length(nskb));
+        if(iTempTotal > skb_get_data_length(nskb))
+        {
+            iTempTotal = skb_get_data_length(nskb);
+        }
+        for(iTemp = 0; iTemp < iTempTotal; iTemp++)
+        {
+            H5LogMsg("0x%x", data[iTemp]);
+        }
+    }
+#endif
+
+    bytes_sent = h5_int_hal_callbacks->h5_int_transmit_data_cb(DATA_TYPE_H5, data, skb_get_data_length(nskb));
+    H5LogMsg("bytes_sent(%d)", bytes_sent);
+
+    skb_free(&nskb);
+#endif
+    return;
+}
+
+
+static void hci_h5_send_conf_resp()
+{
+    //uint16_t bytes_sent = 0;
+    unsigned char h5confresp[2] = {0x04, 0x7B};
+    sk_buff * skb = NULL;
+
+    skb = skb_alloc_and_init(H5_LINK_CTL_PKT, h5confresp, sizeof(h5confresp));
+    if(!skb) {
+        LOG_ERROR(LOG_TAG, "skb_alloc_and_init fail!");
+        return;
+    }
+
+    H5LogMsg("H5: --->>>send conf resp");
+    h5_enqueue(skb);
+    h5_wake_up();
+#if 0
+    sk_buff *nskb = h5_prepare_pkt(&rtk_h5, h5confresp, sizeof(h5confresp), H5_LINK_CTL_PKT);
+    if(nskb == NULL)
+    {
+        ALOGE("h5_prepare_pkt allocate memory fail");
+        return;
+    }
+    H5LogMsg("H5: --->>>send conf resp");
+    uint8_t * data = skb_get_data(nskb);
+
+#if H5_TRACE_DATA_ENABLE
+    {
+        uint32_t iTemp = 0;
+        uint32_t iTempTotal = 16;
+        H5LogMsg("H5 TX: length(%d)", skb_get_data_length(nskb));
+        if(iTempTotal > skb_get_data_length(nskb))
+        {
+            iTempTotal = skb_get_data_length(nskb);
+        }
+        for(iTemp = 0; iTemp < iTempTotal; iTemp++)
+        {
+            H5LogMsg("0x%x", data[iTemp]);
+        }
+    }
+#endif
+
+    bytes_sent = h5_int_hal_callbacks->h5_int_transmit_data_cb(DATA_TYPE_H5, data, skb_get_data_length(nskb));
+    H5LogMsg("bytes_sent(%d)", bytes_sent);
+
+    skb_free(&nskb);
+#endif
+    return;
+}
+
+static void rtk_notify_hw_h5_init_result(uint8_t result)
+{
+    LOG_ERROR(LOG_TAG, "rtk_notify_hw_h5_init_result");
+    uint8_t sync_event[6] = {0x0e, 0x04, 0x03, 0xee, 0xfc, 0x00};
+    // we need to make a sync event to bt
+    sk_buff     *rx_skb;
+    rx_skb = skb_alloc_and_init(HCI_EVENT_PKT, sync_event, sizeof(sync_event));
+
+    pthread_mutex_lock(&rtk_h5.data_mutex);
+    skb_queue_tail(rtk_h5.recv_data, rx_skb);
+    pthread_cond_signal(&rtk_h5.data_cond);
+    pthread_mutex_unlock(&rtk_h5.data_mutex);
+}
+
+
+static sk_buff * h5_dequeue()
+{
+    sk_buff *skb = NULL;
+    //   First of all, check for unreliable messages in the queue,
+    //   since they have higher priority
+    //H5LogMsg("h5_dequeue++");
+    if ((skb = (sk_buff*)skb_dequeue_head(rtk_h5.unrel)) != NULL)
+    {
+        sk_buff *nskb = h5_prepare_pkt(&rtk_h5,
+                                         skb_get_data(skb),
+                                         skb_get_data_length(skb),
+                                         skb_get_pkt_type(skb));
+        if (nskb)
+        {
+            skb_free(&skb);
+            return nskb;
+        }
+        else
+        {
+            skb_queue_head(rtk_h5.unrel, skb);
+        }
+    }
+    //   Now, try to send a reliable pkt. We can only send a
+    //   reliable packet if the number of packets sent but not yet ack'ed
+    //   is < than the winsize
+
+//    H5LogMsg("RtbGetQueueLen(rtk_h5.unack) = (%d), sliding_window_size = (%d)", RtbGetQueueLen(rtk_h5.unack), rtk_h5.sliding_window_size);
+
+    if (RtbGetQueueLen(rtk_h5.unack)< rtk_h5.sliding_window_size &&
+        (skb = (sk_buff *)skb_dequeue_head(rtk_h5.rel)) != NULL)
+    {
+        sk_buff *nskb = h5_prepare_pkt(&rtk_h5,
+                                         skb_get_data(skb),
+                                         skb_get_data_length(skb),
+                                         skb_get_pkt_type(skb));
+        if (nskb)
+        {
+            skb_queue_tail(rtk_h5.unack, skb);
+            h5_start_data_retrans_timer();
+            return nskb;
+        }
+        else
+        {
+            skb_queue_head(rtk_h5.rel, skb);
+        }
+    }
+    //   We could not send a reliable packet, either because there are
+    //   none or because there are too many unack'ed packets. Did we receive
+    //   any packets we have not acknowledged yet
+    if (rtk_h5.is_txack_req)
+    {
+        // if so, craft an empty ACK pkt and send it on BCSP unreliable
+        // channel
+        sk_buff *nskb = h5_prepare_pkt(&rtk_h5, NULL, 0, H5_ACK_PKT);
+        return nskb;
+    }
+    // We have nothing to send
+    return NULL;
+}
+
+int h5_enqueue(IN sk_buff *skb)
+{
+    //Pkt length must be less than 4095 bytes
+    if (skb_get_data_length(skb) > 0xFFF)
+    {
+        LOG_ERROR(LOG_TAG, "skb len > 0xFFF");
+        skb_free(&skb);
+        return 0;
+    }
+
+    switch (skb_get_pkt_type(skb))
+    {
+    case HCI_ACLDATA_PKT:
+    case HCI_COMMAND_PKT:
+        skb_queue_tail(rtk_h5.rel, skb);
+        break;
+
+
+    case H5_LINK_CTL_PKT:
+    case H5_ACK_PKT:
+    case H5_VDRSPEC_PKT:
+        skb_queue_tail(rtk_h5.unrel, skb);/* 3-wire LinkEstablishment*/
+        break;
+    default:
+        skb_free(&skb);
+        break;
+    }
+    return 0;
+}
+
+
+static uint16_t h5_wake_up()
+{
+    uint16_t bytes_sent = 0;
+    sk_buff *skb = NULL;
+    uint8_t * data = NULL;
+    uint32_t data_len = 0;
+
+    pthread_mutex_lock(&h5_wakeup_mutex);
+    //H5LogMsg("h5_wake_up");
+    while (NULL != (skb = h5_dequeue()))
+    {
+        data = skb_get_data(skb);
+        data_len = skb_get_data_length(skb);
+        //we adopt the hci_h5 interface to send data
+        bytes_sent = h5_int_hal_callbacks->h5_int_transmit_data_cb(DATA_TYPE_H5, data, data_len);
+//      bytes_sent = userial_write(0, data, data_len);
+
+        H5LogMsg("bytes_sent(%d)", bytes_sent);
+
+#if H5_TRACE_DATA_ENABLE
+        {
+            uint32_t iTemp = 0;
+            uint32_t iTempTotal = 16;
+            H5LogMsg("H5 TX: length(%d)", data_len);
+            if(iTempTotal > data_len)
+            {
+                iTempTotal = data_len;
+            }
+            for(iTemp = 0; iTemp < iTempTotal; iTemp++)
+            {
+                H5LogMsg("0x%x", data[iTemp]);
+            }
+        }
+#endif
+        skb_free(&skb);
+    }
+
+    pthread_mutex_unlock(&h5_wakeup_mutex);
+    return bytes_sent;
+}
+
+void h5_process_ctl_pkts(void)
+{
+    //process h5 link establish
+    int len;
+    uint8_t cfg;
+
+    tHCI_H5_CB *p_cb = &rtk_h5;
+    sk_buff * skb = rtk_h5.rx_skb;
+
+    unsigned char   h5sync[2]     = {0x01, 0x7E},
+                    h5syncresp[2] = {0x02, 0x7D},
+                    h5conf[3]     = {0x03, 0xFC, 0x14},
+                    h5confresp[2] = {0x04, 0x7B},
+                    h5InitOk[2] = {0xF1, 0xF1};
+
+    //uint8_t *ph5_payload = NULL;
+    //ph5_payload = (uint8_t *)(p_cb->p_rcv_msg + 1);
+
+    if(rtk_h5.link_estab_state == H5_UNINITIALIZED) {  //sync
+        if (!memcmp(skb_get_data(skb), h5sync, 2))
+        {
+            H5LogMsg("H5: <<<---recv sync req");
+            hci_h5_send_sync_resp();
+        }
+        else if (!memcmp(skb_get_data(skb), h5syncresp, 2))
+        {
+            H5LogMsg("H5: <<<---recv sync resp");
+            h5_stop_sync_retrans_timer();
+            rtk_h5.sync_retrans_count  = 0;
+            rtk_h5.link_estab_state = H5_INITIALIZED;
+
+              //send config req
+              hci_h5_send_conf_req();
+              h5_start_conf_retrans_timer();
+        }
+
+    }
+    else if(rtk_h5.link_estab_state == H5_INITIALIZED) {  //config
+        if (!memcmp(skb_get_data(skb), h5sync, 0x2)) {
+
+            H5LogMsg("H5: <<<---recv sync req in H5_INITIALIZED");
+            hci_h5_send_sync_resp();
+        }
+        else if (!memcmp(skb_get_data(skb), h5conf, 0x2)) {
+             H5LogMsg("H5: <<<---recv conf req");
+             hci_h5_send_conf_resp();
+        }
+        else if (!memcmp(skb_get_data(skb), h5confresp,  0x2)) {
+            H5LogMsg("H5: <<<---recv conf resp");
+            h5_stop_conf_retrans_timer();
+            rtk_h5.conf_retrans_count  = 0;
+
+            rtk_h5.link_estab_state = H5_ACTIVE;
+            //notify hw to download patch
+            memcpy(&cfg, skb_get_data(skb)+2, H5_CFG_SIZE);
+            rtk_h5.sliding_window_size = H5_CFG_SLID_WIN(cfg);
+            rtk_h5.oof_flow_control = H5_CFG_OOF_CNTRL(cfg);
+            rtk_h5.dic_type = H5_CFG_DIC_TYPE(cfg);
+            H5LogMsg("rtk_h5.sliding_window_size(%d), oof_flow_control(%d), dic_type(%d)",
+            rtk_h5.sliding_window_size, rtk_h5.oof_flow_control, rtk_h5.dic_type);
+         if(rtk_h5.dic_type)
+            rtk_h5.use_crc = 1;
+
+            rtk_notify_hw_h5_init_result(1);
+        }
+        else {
+            H5LogMsg("H5_INITIALIZED receive event, ingnore");
+        }
+    }
+    else if(rtk_h5.link_estab_state == H5_ACTIVE) {
+        if (!memcmp(skb_get_data(skb), h5sync, 0x2)) {
+
+            H5LogMsg("H5: <<<---recv sync req in H5_ACTIVE");
+            hci_h5_send_sync_resp();
+            H5LogMsg("H5 : H5_ACTIVE transit to H5_UNINITIALIZED");
+            rtk_h5.link_estab_state = H5_UNINITIALIZED;
+            hci_h5_send_sync_req();
+            h5_start_sync_retrans_timer();
+        }
+        else if (!memcmp(skb_get_data(skb), h5conf, 0x2)) {
+             H5LogMsg("H5: <<<---recv conf req in H5_ACTIVE");
+             hci_h5_send_conf_resp();
+        }
+        else if (!memcmp(skb_get_data(skb), h5confresp,  0x2)) {
+            H5LogMsg("H5: <<<---recv conf resp in H5_ACTIVE, discard");
+        }
+        else {
+            H5LogMsg("H5_ACTIVE receive unknown link control msg, ingnore");
+        }
+
+    }
+}
+
+uint8_t isRtkInternalCommand(uint16_t opcode)
+{
+    if(opcode == 0xFC17
+        || opcode == 0xFC6D
+        || opcode == 0xFC61
+        || opcode == 0xFC20)
+    {
+        return 1;
+    }
+    else
+    {
+        return 0;
+    }
+
+}
+
+
+/*******************************************************************************
+**
+** Function         internal_event_intercept_h5
+**
+** Description      This function is called to parse received HCI event and
+**                  - update the Num_HCI_Command_Packets
+**                  - intercept the event if it is the result of an early
+**                    issued internal command.
+**
+** Returns          TRUE : if the event had been intercepted for internal process
+**                  FALSE : send this event to core stack
+**
+*******************************************************************************/
+uint8_t internal_event_intercept_h5(void)
+{
+    bool h5_int_command = 0;//if it the H5 int command like H5 vendor cmd or Coex cmd h5_int_command=1;
+    tHCI_H5_CB *p_cb = &rtk_h5;
+    sk_buff * skb = rtk_h5.rx_skb;
+    //uint8_t *ph5_payload = NULL;
+    //ph5_payload = (uint8_t *)(p_cb->p_rcv_msg + 1);
+
+    //process fw change baudrate and patch download
+    uint8_t     *p;
+    uint8_t     event_code;
+    uint16_t    opcode, len;
+    p = (uint8_t *)(p_cb->p_rcv_msg + 1);
+
+    event_code = *p++;
+    len = *p++;
+    H5LogMsg("event_code(0x%x), len = %d", event_code, len);
+    if (event_code == HCI_COMMAND_COMPLETE_EVT)
+    {
+        num_hci_cmd_pkts = *p++;
+        STREAM_TO_UINT16(opcode, p);
+        H5LogMsg("event_code(0x%x)  opcode (0x%x) p_cb->int_cmd_rsp_pending %d", event_code,opcode,p_cb->int_cmd_rsp_pending);
+
+        if (p_cb->int_cmd_rsp_pending > 0)
+        {
+            H5LogMsg("CommandCompleteEvent for command (0x%04X)", opcode);
+            if (opcode == p_cb->int_cmd[p_cb->int_cmd_rd_idx].opcode)
+            {
+                //ONLY HANDLE H5 INIT CMD COMMAND COMPLETE EVT
+                h5_int_command = 1;
+                if(opcode == HCI_VSC_UPDATE_BAUDRATE)
+                {
+                    //need to set a timer, add wait for retransfer packet from controller.
+                    //if there is no packet rx from controller, we can assure baudrate change success.
+                    H5LogMsg("CommandCompleteEvent for command 2 h5_start_wait_controller_baudrate_ready_timer (0x%04X)", opcode);
+                    h5_start_wait_controller_baudrate_ready_timer();
+                }
+                else
+                {
+
+                    if (p_cb->int_cmd[p_cb->int_cmd_rd_idx].cback != NULL)
+                    {
+                        H5LogMsg("CommandCompleteEvent for command (0x%04X) p_cb->int_cmd[p_cb->int_cmd_rd_idx].cback(p_cb->p_rcv_msg)", opcode);
+                        p_cb->int_cmd[p_cb->int_cmd_rd_idx].cback(p_cb->p_rcv_msg);
+                    }
+                    else
+                    {
+                        H5LogMsg("CommandCompleteEvent for command Missing cback function buffer_allocator->free(p_cb->p_rcv_msg) (0x%04X)", opcode);
+                        buffer_allocator->free(p_cb->p_rcv_msg);
+                    }
+                }
+
+                p_cb->int_cmd_rd_idx = ((p_cb->int_cmd_rd_idx+1) & INT_CMD_PKT_IDX_MASK);
+                p_cb->int_cmd_rsp_pending--;
+            }
+        }
+        else {
+            if(opcode == HCI_VSC_UPDATE_BAUDRATE)
+            {
+                h5_int_command |= 0x80;
+                rtk_h5.internal_skb = skb;
+                //need to set a timer, add wait for retransfer packet from controller.
+                //if there is no packet rx from controller, we can assure baudrate change success.
+                H5LogMsg("CommandCompleteEvent for command 2 h5_start_wait_controller_baudrate_ready_timer (0x%04X)", opcode);
+                h5_start_wait_controller_baudrate_ready_timer();
+            }
+        }
+    }
+
+    return h5_int_command;
+
+}
+
+
+/**
+* Check if it's a hci frame, if it is, complete it with response or parse the cmd complete event
+*
+* @param skb socket buffer
+*
+*/
+static uint8_t hci_recv_frame(sk_buff *skb, uint8_t pkt_type)
+{
+    uint8_t intercepted = 0;
+    uint32_t i = 0 ;
+    uint8_t *data = skb_get_data(skb);
+    uint32_t data_len = skb_get_data_length(skb);
+
+    H5LogMsg("UART H5 RX: length = %d", data_len);
+
+#if H5_TRACE_DATA_ENABLE
+    {
+        uint32_t iTemp = 0;
+        uint32_t iTempTotal = 16;
+        H5LogMsg("H5 RX: length(%d)", data_len);
+        if(iTempTotal > data_len)
+        {
+            iTempTotal = data_len;
+        }
+        for(iTemp = 0; iTemp < iTempTotal; iTemp++)
+        {
+            H5LogMsg("0x%x", data[iTemp]);
+        }
+    }
+#endif
+    //we only intercept evt packet here
+    if(pkt_type == HCI_EVENT_PKT)
+    {
+        uint8_t     *p;
+        uint8_t     event_code;
+        uint16_t    opcode, len;
+        p = (uint8_t *)skb_get_data(skb);
+
+        event_code = *p++;
+        len = *p++;
+        H5LogMsg("hci_recv_frame event_code(0x%x), len = %d", event_code, len);
+        if (event_code == HCI_COMMAND_COMPLETE_EVT)
+        {
+            num_hci_cmd_pkts = *p++;
+            STREAM_TO_UINT16(opcode, p);
+
+            if(opcode == HCI_VSC_UPDATE_BAUDRATE)
+            {
+                intercepted = 1;
+                rtk_h5.internal_skb = skb;
+                H5LogMsg("CommandCompleteEvent for command h5_start_wait_controller_baudrate_ready_timer (0x%04X)", opcode);
+                h5_start_wait_controller_baudrate_ready_timer();
+            }
+        }
+
+    }
+
+    H5LogMsg("hci_recv_frame intercepted = %d", intercepted);
+    return intercepted;
+}
+
+
+/**
+* after rx data is parsed, and we got a rx frame saved in h5->rx_skb,
+* this routinue is called.
+* things todo in this function:
+* 1. check if it's a hci frame, if it is, complete it with response or ack
+* 2. see the ack number, free acked frame in queue
+* 3. reset h5->rx_state, set rx_skb to null.
+*
+* @param h5 realtek h5 struct
+*
+*/
+static uint8_t h5_complete_rx_pkt(tHCI_H5_CB *h5)
+{
+    int pass_up = 1;
+    uint16_t eventtype = 0;
+    uint8_t *h5_hdr = NULL;
+    uint8_t complete_pkt = TRUE;
+    uint8_t pkt_type = 0;
+    tHCI_H5_CB *p_cb=&rtk_h5;
+    uint8_t status = 0;
+
+    //H5LogMsg("HCI 3wire h5_complete_rx_pkt");
+    h5_hdr = (uint8_t *)skb_get_data(h5->rx_skb);
+    H5LogMsg("SeqNumber(%d), AckNumber(%d)", H5_HDR_SEQ(h5_hdr), H5_HDR_ACK(h5_hdr));
+
+
+#if H5_TRACE_DATA_ENABLE
+    {
+        uint32_t iTemp = 0;
+        uint32_t iTempTotal = 16;
+        uint32_t data_len = skb_get_data_length(h5->rx_skb);
+        uint8_t *data = skb_get_data(h5->rx_skb);
+        H5LogMsg("H5 RX: length(%d)", data_len);
+
+        if(iTempTotal > data_len)
+        {
+            iTempTotal = data_len;
+        }
+        for(iTemp = 0; iTemp < iTempTotal; iTemp++)
+        {
+            H5LogMsg("0x%x", data[iTemp]);
+        }
+    }
+#endif
+
+    if (H5_HDR_RELIABLE(h5_hdr))
+    {
+        H5LogMsg("Received reliable seqno %u from card", h5->rxseq_txack);
+        pthread_mutex_lock(&h5_wakeup_mutex);
+        h5->rxseq_txack = H5_HDR_SEQ(h5_hdr) + 1;
+        h5->rxseq_txack %= 8;
+        h5->is_txack_req = 1;
+        pthread_mutex_unlock(&h5_wakeup_mutex);
+        // send down an empty ack if needed.
+        h5_wake_up();
+    }
+
+    h5->rxack = H5_HDR_ACK(h5_hdr);
+    pkt_type = H5_HDR_PKT_TYPE(h5_hdr);
+    H5LogMsg("h5_complete_rx_pkt, pkt_type = %d", pkt_type);
+    switch (pkt_type)
+    {
+        case HCI_ACLDATA_PKT:
+            pass_up = 1;
+            eventtype = MSG_HC_TO_STACK_HCI_ACL;
+        break;
+
+        case HCI_EVENT_PKT:
+            pass_up = 1;
+            eventtype = MSG_HC_TO_STACK_HCI_EVT;
+            break;
+
+        case HCI_SCODATA_PKT:
+            pass_up = 1;
+            eventtype = MSG_HC_TO_STACK_HCI_SCO;
+            break;
+        case HCI_COMMAND_PKT:
+            pass_up = 1;
+            eventtype = MSG_HC_TO_STACK_HCI_ERR;
+            break;
+
+        case H5_LINK_CTL_PKT:
+            pass_up = 0;
+        break;
+
+        case H5_ACK_PKT:
+            pass_up = 0;
+            break;
+
+        default:
+          LOG_ERROR(LOG_TAG, "Unknown pkt type(%d)", H5_HDR_PKT_TYPE(h5_hdr));
+          eventtype = MSG_HC_TO_STACK_HCI_ERR;
+          pass_up = 0;
+          break;
+    }
+
+    // remove h5 header and send packet to hci
+    h5_remove_acked_pkt(h5);
+
+    if(H5_HDR_PKT_TYPE(h5_hdr) == H5_LINK_CTL_PKT)
+    {
+
+        skb_pull(h5->rx_skb, H5_HDR_SIZE);
+        h5_process_ctl_pkts();
+    }
+
+    // decide if we need to pass up.
+    if (pass_up)
+    {
+        skb_pull(h5->rx_skb, H5_HDR_SIZE);
+        skb_set_pkt_type(h5->rx_skb, pkt_type);
+
+        //send command or  acl data it to bluedroid stack
+        uint16_t len = 0;
+        sk_buff * skb_complete_pkt = h5->rx_skb;
+
+        /* Allocate a buffer for message */
+
+        len = BT_HC_HDR_SIZE + skb_get_data_length(skb_complete_pkt);
+        h5->p_rcv_msg = (HC_BT_HDR *) buffer_allocator->alloc(len);
+
+        if (h5->p_rcv_msg)
+        {
+            /* Initialize buffer with received h5 data */
+            h5->p_rcv_msg->offset = 0;
+            h5->p_rcv_msg->layer_specific = 0;
+            h5->p_rcv_msg->event = eventtype;
+            h5->p_rcv_msg->len = skb_get_data_length(skb_complete_pkt);
+            memcpy((uint8_t *)(h5->p_rcv_msg + 1), skb_get_data(skb_complete_pkt), skb_get_data_length(skb_complete_pkt));
+        }
+
+#if H5_BTSNOOP_DUMP
+        if(h5->p_rcv_msg)
+            h5_btsnoop_capture(h5->p_rcv_msg, TRUE);
+#endif
+
+#if RTK_BTSNOOP_NET_DUMP
+        rtk_btsnoop_net_write(pkt_type, (uint8_t *)(h5->p_rcv_msg + 1), TRUE);
+#endif
+
+        status = hci_recv_frame(skb_complete_pkt, pkt_type);
+
+        if(h5->p_rcv_msg)
+            buffer_allocator->free(h5->p_rcv_msg);
+
+        if(!status) {
+            pthread_mutex_lock(&rtk_h5.data_mutex);
+            skb_queue_tail(rtk_h5.recv_data, h5->rx_skb);
+            pthread_cond_signal(&rtk_h5.data_cond);
+            pthread_mutex_unlock(&rtk_h5.data_mutex);
+        }
+    }
+    else {
+        // free ctl packet
+        skb_free(&h5->rx_skb);
+    }
+    h5->rx_state = H5_W4_PKT_DELIMITER;
+    rtk_h5.rx_skb = NULL;
+    return pkt_type;
+}
+
+
+/**
+* Parse the receive data in h5 proto.
+*
+* @param h5 realtek h5 struct
+* @param data point to data received before parse
+* @param count num of data
+* @return reserved count
+*/
+static BOOLEAN h5_recv(tHCI_H5_CB *h5, uint8_t *data, int count)
+{
+//   unsigned char *ptr;
+    uint8_t *ptr;
+    uint8_t * skb_data = NULL;
+    uint8_t *hdr = NULL;
+    BOOLEAN complete_packet = FALSE;
+
+    ptr = (uint8_t *)data;
+    //H5LogMsg("count %d rx_state %d rx_count %ld", count, h5->rx_state, h5->rx_count);
+    while (count)
+    {
+        if (h5->rx_count)
+        {
+            if (*ptr == 0xc0)
+            {
+                LOG_ERROR(LOG_TAG, "short h5 packet");
+                skb_free(&h5->rx_skb);
+                h5->rx_state = H5_W4_PKT_START;
+                h5->rx_count = 0;
+            } else
+                h5_unslip_one_byte(h5, *ptr);
+
+            ptr++; count--;
+            continue;
+        }
+
+        //H5LogMsg("h5_recv rx_state=%d", h5->rx_state);
+        switch (h5->rx_state)
+        {
+        case H5_W4_HDR:
+            // check header checksum. see Core Spec V4 "3-wire uart" page 67
+            skb_data = skb_get_data(h5->rx_skb);
+            hdr = (uint8_t *)skb_data;
+
+            if ((0xff & (uint8_t) ~ (skb_data[0] + skb_data[1] +
+                                   skb_data[2])) != skb_data[3])
+            {
+                LOG_ERROR(LOG_TAG, "h5 hdr checksum error!!!");
+                skb_free(&h5->rx_skb);
+                h5->rx_state = H5_W4_PKT_DELIMITER;
+                h5->rx_count = 0;
+                continue;
+            }
+
+            if (H5_HDR_RELIABLE(hdr)
+                && (H5_HDR_SEQ(hdr) != h5->rxseq_txack))
+            {
+                LOG_ERROR(LOG_TAG, "Out-of-order packet arrived, got(%u)expected(%u)",
+                   H5_HDR_SEQ(hdr), h5->rxseq_txack);
+                h5->is_txack_req = 1;
+                h5_wake_up();
+
+                skb_free(&h5->rx_skb);
+                h5->rx_state = H5_W4_PKT_DELIMITER;
+                h5->rx_count = 0;
+
+                continue;
+            }
+            h5->rx_state = H5_W4_DATA;
+            //payload length: May be 0
+            h5->rx_count = H5_HDR_LEN(hdr);
+            continue;
+        case H5_W4_DATA:
+            hdr = (uint8_t *)skb_get_data(h5->rx_skb);
+            if (H5_HDR_CRC(hdr))
+            {   // pkt with crc /
+                h5->rx_state = H5_W4_CRC;
+                h5->rx_count = 2;
+            }
+            else
+            {
+                h5_complete_rx_pkt(h5); //Send ACK
+                complete_packet = TRUE;
+                H5LogMsg("--------> H5_W4_DATA ACK\n");
+            }
+            continue;
+
+        case H5_W4_CRC:
+            if (bit_rev16(h5->message_crc) != h5_get_crc(h5))
+            {
+                LOG_ERROR(LOG_TAG, "Checksum failed, computed(%04x)received(%04x)",
+                    bit_rev16(h5->message_crc), h5_get_crc(h5));
+                skb_free(&h5->rx_skb);
+                h5->rx_state = H5_W4_PKT_DELIMITER;
+                h5->rx_count = 0;
+                continue;
+            }
+            skb_trim(h5->rx_skb, skb_get_data_length(h5->rx_skb) - 2);
+            h5_complete_rx_pkt(h5);
+            complete_packet = TRUE;
+            continue;
+
+        case H5_W4_PKT_DELIMITER:
+            switch (*ptr)
+            {
+            case 0xc0:
+                h5->rx_state = H5_W4_PKT_START;
+                break;
+            default:
+                break;
+            }
+            ptr++; count--;
+            break;
+
+        case H5_W4_PKT_START:
+            switch (*ptr)
+            {
+            case 0xc0:
+                ptr++; count--;
+                break;
+            default:
+                h5->rx_state = H5_W4_HDR;
+                h5->rx_count = 4;
+                h5->rx_esc_state = H5_ESCSTATE_NOESC;
+                H5_CRC_INIT(h5->message_crc);
+
+                // Do not increment ptr or decrement count
+                // Allocate packet. Max len of a H5 pkt=
+                // 0xFFF (payload) +4 (header) +2 (crc)
+                h5->rx_skb = skb_alloc(0x1005);
+                if (!h5->rx_skb)
+                {
+                    h5->rx_state = H5_W4_PKT_DELIMITER;
+                    h5->rx_count = 0;
+                    return FALSE;
+                }
+                break;
+            }
+            break;
+        }
+    }
+    return complete_packet;
+}
+
+/******************************************************************************
+**  Static functions
+******************************************************************************/
+static void data_ready_cb_thread(void *arg)
+{
+    sk_buff *skb;
+    uint8_t pkt_type = 0;
+
+    H5LogMsg("data_ready_cb_thread started");
+
+    prctl(PR_SET_NAME, (unsigned long)"data_ready_cb_thread", 0, 0, 0);
+
+    while (h5_data_ready_running)
+    {
+        pthread_mutex_lock(&rtk_h5.data_mutex);
+        while ((skb_queue_get_length(rtk_h5.recv_data) == 0))
+        {
+            pthread_cond_wait(&rtk_h5.data_cond, &rtk_h5.data_mutex);
+        }
+        pthread_mutex_unlock(&rtk_h5.data_mutex);
+
+        if((skb = skb_dequeue_head(rtk_h5.recv_data)) != NULL) {
+            rtk_h5.data_skb = skb;
+        }
+
+        pkt_type = skb_get_pkt_type(rtk_h5.data_skb);
+        h5_int_hal_callbacks->h5_data_ready_cb(pkt_type);
+    }
+
+    H5LogMsg("data_ready_cb_thread exiting");
+    pthread_exit(NULL);
+
+}
+
+static void data_retransfer_thread(void *arg)
+{
+    uint16_t events;
+    uint32_t i = 0;
+
+    H5LogMsg("data_retransfer_thread started");
+
+    prctl(PR_SET_NAME, (unsigned long)"data_retransfer_thread", 0, 0, 0);
+
+    while (h5_retransfer_running)
+    {
+        pthread_mutex_lock(&rtk_h5.mutex);
+        while (h5_ready_events == 0)
+        {
+            pthread_cond_wait(&rtk_h5.cond, &rtk_h5.mutex);
+        }
+        events = h5_ready_events;
+        h5_ready_events = 0;
+        pthread_mutex_unlock(&rtk_h5.mutex);
+
+        if (events & H5_EVENT_RX)
+        {
+            sk_buff *skb;
+            LOG_ERROR(LOG_TAG, "retransmitting (%u) pkts, retransfer count(%d)", skb_queue_get_length(rtk_h5.unack), rtk_h5.data_retrans_count);
+            if(rtk_h5.data_retrans_count < DATA_RETRANS_COUNT)
+            {
+                while ((skb = skb_dequeue_tail(rtk_h5.unack)) != NULL)
+                {
+#if H5_TRACE_DATA_ENABLE
+                    uint32_t data_len = skb_get_data_length(skb);
+                    uint8_t* pdata = skb_get_data(skb);
+                    if(data_len>16)
+                        data_len=16;
+
+                    for(i = 0 ; i < data_len; i++)
+                        ALOGE("0x%02X", pdata[i]);
+#endif
+                    rtk_h5.msgq_txseq = (rtk_h5.msgq_txseq - 1) & 0x07;
+                    skb_queue_head(rtk_h5.rel, skb);
+
+                }
+                rtk_h5.data_retrans_count++;
+                h5_wake_up();
+
+            }
+            else
+            {
+            //do not put packet to rel queue, and do not send
+            //Kill bluetooth
+            kill(getpid(), SIGKILL);
+            }
+
+        }
+        else
+        if (events & H5_EVENT_EXIT)
+        {
+            break;
+        }
+
+}
+
+    H5LogMsg("data_retransfer_thread exiting");
+    pthread_exit(NULL);
+
+}
+
+void h5_retransfer_signal_event(uint16_t event)
+{
+    pthread_mutex_lock(&rtk_h5.mutex);
+    h5_ready_events |= event;
+    pthread_cond_signal(&rtk_h5.cond);
+    pthread_mutex_unlock(&rtk_h5.mutex);
+}
+
+static int create_data_retransfer_thread()
+{
+    struct sched_param param;
+    int policy;
+
+    pthread_attr_t thread_attr;
+
+
+    if (h5_retransfer_running)
+    {
+        ALOGW("create_data_retransfer_thread has been called repeatedly without calling cleanup ?");
+    }
+
+    h5_retransfer_running = 1;
+    h5_ready_events = 0;
+
+    pthread_attr_init(&thread_attr);
+    pthread_mutex_init(&rtk_h5.mutex, NULL);
+    pthread_cond_init(&rtk_h5.cond, NULL);
+
+    if (pthread_create(&rtk_h5.thread_data_retrans, &thread_attr, \
+               (void*)data_retransfer_thread, NULL) != 0)
+    {
+        LOG_ERROR(LOG_TAG, "pthread_create thread_data_retrans failed!");
+        h5_retransfer_running = 0;
+        return -1 ;
+    }
+/*
+    if(pthread_getschedparam(hc_cb.worker_thread, &policy, &param)==0)
+    {
+        policy = BTHC_LINUX_BASE_POLICY;
+
+#if (BTHC_LINUX_BASE_POLICY!=SCHED_NORMAL)
+        param.sched_priority = BTHC_MAIN_THREAD_PRIORITY;
+#endif
+        result = pthread_setschedparam(hc_cb.worker_thread, policy, &param);
+        if (result != 0)
+        {
+            ALOGW("create_data_retransfer_thread pthread_setschedparam failed (%s)", \
+            strerror(result));
+        }
+    }
+*/
+    return 0;
+
+}
+
+
+static int create_data_ready_cb_thread()
+{
+    struct sched_param param;
+    int policy;
+
+    pthread_attr_t thread_attr;
+
+
+    if (h5_data_ready_running)
+    {
+        ALOGW("create_data_ready_cb_thread has been called repeatedly without calling cleanup ?");
+    }
+
+    h5_data_ready_running = 1;
+
+    pthread_attr_init(&thread_attr);
+    pthread_mutex_init(&rtk_h5.data_mutex, NULL);
+    pthread_cond_init(&rtk_h5.data_cond, NULL);
+
+    if (pthread_create(&rtk_h5.thread_data_ready_cb, &thread_attr, \
+               (void*)data_ready_cb_thread, NULL) != 0)
+    {
+        LOG_ERROR(LOG_TAG, "pthread_create thread_data_ready_cb failed!");
+        h5_data_ready_running = 0;
+        return -1 ;
+    }
+    return 0;
+
+}
+
+
+/*****************************************************************************
+**   HCI H5 INTERFACE FUNCTIONS
+*****************************************************************************/
+
+/*******************************************************************************
+**
+** Function        hci_h5_init
+**
+** Description     Initialize H5 module
+**
+** Returns         None
+**
+*******************************************************************************/
+void hci_h5_int_init(hci_h5_hal_callbacks_t* h5_callbacks)
+{
+    H5LogMsg("hci_h5_int_init");
+
+    h5_int_hal_callbacks = h5_callbacks;
+    memset(&rtk_h5, 0, sizeof(tHCI_H5_CB));
+
+
+    /* Per HCI spec., always starts with 1 */
+    num_hci_cmd_pkts = 1;
+
+    h5_alloc_data_retrans_timer();
+    h5_alloc_sync_retrans_timer();
+    h5_alloc_conf_retrans_timer();
+    h5_alloc_wait_controller_baudrate_ready_timer();
+    h5_alloc_hw_init_ready_timer();
+
+    rtk_h5.thread_data_retrans = -1;
+
+    rtk_h5.recv_data = RtbQueueInit();
+
+    if(create_data_ready_cb_thread() != 0)
+        LOG_ERROR(LOG_TAG, "H5 create_data_ready_cb_thread failed");
+
+    if(create_data_retransfer_thread() != 0)
+        LOG_ERROR(LOG_TAG, "H5 create_data_retransfer_thread failed");
+
+
+    rtk_h5.unack = RtbQueueInit();
+    rtk_h5.rel = RtbQueueInit();
+    rtk_h5.unrel = RtbQueueInit();
+
+    rtk_h5.rx_state = H5_W4_PKT_DELIMITER;
+    rtk_h5.rx_esc_state = H5_ESCSTATE_NOESC;
+
+    buffer_allocator = buffer_allocator_get_interface();
+
+    btsnoop = btsnoop_get_interface();
+#if H5_BTSNOOP_DUMP
+    h5_btsnoop_open();
+#endif
+#if RTK_BTSNOOP_NET_DUMP
+    rtk_btsnoop_net_open();
+#endif
+}
+
+/*******************************************************************************
+**
+** Function        hci_h5_cleanup
+**
+** Description     Clean H5 module
+**
+** Returns         None
+**
+*******************************************************************************/
+void hci_h5_cleanup(void)
+{
+    H5LogMsg("hci_h5_cleanup");
+    uint8_t try_cnt=10;
+    int result;
+
+    rtk_h5.cleanuping = 1;
+
+
+    //btsnoop_cleanup();
+
+    h5_free_data_retrans_timer();
+    h5_free_sync_retrans_timer();
+    h5_free_conf_retrans_timer();
+    h5_free_wait_controller_baudrate_ready_timer();
+    h5_free_hw_init_ready_timer();
+
+
+    if (h5_retransfer_running)
+    {
+        h5_retransfer_running = 0;
+        h5_retransfer_signal_event(H5_EVENT_EXIT);
+        if ((result = pthread_join(rtk_h5.thread_data_retrans, NULL)) < 0)
+        LOG_ERROR(LOG_TAG, "H5 pthread_join() FAILED result:%d", result);
+    }
+
+    ms_delay(200);
+
+    pthread_mutex_destroy(&rtk_h5.mutex);
+    pthread_cond_destroy(&rtk_h5.cond);
+
+    RtbQueueFree(rtk_h5.unack);
+    RtbQueueFree(rtk_h5.rel);
+    RtbQueueFree(rtk_h5.unrel);
+
+#if H5_BTSNOOP_DUMP
+    h5_btsnoop_close();
+#endif
+#if RTK_BTSNOOP_NET_DUMP
+    rtk_btsnoop_net_close();
+#endif
+    buffer_allocator = NULL;
+    btsnoop = NULL;
+    h5_int_hal_callbacks = NULL;
+    rtk_h5.internal_skb = NULL;
+}
+
+
+/*******************************************************************************
+**
+** Function        hci_h5_parse_msg
+**
+** Description     Construct HCI EVENT/ACL packets and send them to stack once
+**                 complete packet has been received.
+**
+** Returns         Number of need to be red bytes
+**
+*******************************************************************************/
+uint16_t  hci_h5_parse_msg(uint8_t *byte, uint16_t count)
+{
+    uint16_t bytes_needed = 0;
+    uint8_t     h5_byte;
+    h5_byte  = *byte;
+    //H5LogMsg("hci_h5_receive_msg byte:%d",h5_byte);
+    h5_recv(&rtk_h5, &h5_byte, count);
+    return 1;
+}
+
+
+/*******************************************************************************
+**
+** Function        hci_h5_receive_msg
+**
+** Description     Construct HCI EVENT/ACL packets and send them to stack once
+**                 complete packet has been received.
+**
+** Returns         Number of read bytes
+**
+*******************************************************************************/
+BOOLEAN  hci_h5_receive_msg(uint8_t *byte, uint16_t length)
+{
+    BOOLEAN status = FALSE;
+    //H5LogMsg("hci_h5_receive_msg byte:%d",h5_byte);
+    status = h5_recv(&rtk_h5, byte, length);
+    return status;
+}
+
+
+size_t  hci_h5_int_read_data(uint8_t * data_buffer, size_t max_size)
+{
+    H5LogMsg("hci_h5_int_read_data need_size = %d", max_size);
+    if(!rtk_h5.data_skb) {
+        LOG_ERROR(LOG_TAG, "hci_h5_int_read_data, there is no data to read for this packet!");
+        return -1;
+    }
+    sk_buff * skb_complete_pkt = rtk_h5.data_skb;
+    uint8_t *data = skb_get_data(skb_complete_pkt);
+    uint32_t data_len = skb_get_data_length(skb_complete_pkt);
+
+    H5LogMsg("hci_h5_int_read_data length = %d, need_size = %d", data_len, max_size);
+    if(data_len <= max_size) {
+        memcpy(data_buffer, data, data_len);
+        skb_free(&rtk_h5.data_skb);
+        rtk_h5.data_skb = NULL;
+        return data_len;
+    }
+    else {
+        memcpy(data_buffer, data, max_size);
+        skb_pull(rtk_h5.data_skb, max_size);
+        return max_size;
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function        hci_h5_send_cmd
+**
+** Description     get cmd data from hal and send cmd
+**
+**
+** Returns          bytes send
+**
+*******************************************************************************/
+uint16_t hci_h5_send_cmd(serial_data_type_t type, uint8_t *data, uint16_t length)
+{
+    sk_buff * skb = NULL;
+    uint16_t bytes_to_send, opcode;
+
+    skb = skb_alloc_and_init(type, data, length);
+    if(!skb) {
+        LOG_ERROR(LOG_TAG, "send cmd skb_alloc_and_init fail!");
+        return -1;
+    }
+
+#if H5_BTSNOOP_DUMP
+    HC_BT_HDR *p_msg;
+    uint16_t len = BT_HC_HDR_SIZE + skb_get_data_length(skb);
+    p_msg = (HC_BT_HDR *) buffer_allocator->alloc(len);
+    /* Initialize buffer with received h5 data */
+    p_msg->offset = 0;
+    p_msg->layer_specific = 0;
+    p_msg->event = MSG_STACK_TO_HC_HCI_CMD;
+    p_msg->len = skb_get_data_length(skb);
+    memcpy((uint8_t *)(p_msg + 1), skb_get_data(skb), skb_get_data_length(skb));
+    h5_btsnoop_capture(p_msg, FALSE);
+    buffer_allocator->free(p_msg);
+#endif
+
+#if RTK_BTSNOOP_NET_DUMP
+    rtk_btsnoop_net_write(HCI_COMMAND_PKT, (uint8_t *)skb_get_data(skb), FALSE);
+#endif
+
+    h5_enqueue(skb);
+
+    num_hci_cmd_pkts--;
+
+    /* If this is an internal Cmd packet, the layer_specific field would
+         * have stored with the opcode of HCI command.
+         * Retrieve the opcode from the Cmd packet.
+         */
+    STREAM_TO_UINT16(opcode, data);
+    H5LogMsg("HCI Command opcode(0x%04X)", opcode);
+    if(opcode == 0x0c03)
+    {
+        H5LogMsg("RX HCI RESET Command, stop hw init timer");
+        h5_stop_hw_init_ready_timer();
+    }
+    bytes_to_send = h5_wake_up();
+    return length;
+}
+
+/*******************************************************************************
+**
+** Function        hci_h5_send_acl_data
+**
+** Description     get cmd data from hal and send cmd
+**
+**
+** Returns          bytes send
+**
+*******************************************************************************/
+uint16_t hci_h5_send_acl_data(serial_data_type_t type, uint8_t *data, uint16_t length)
+{
+    uint16_t bytes_to_send, lay_spec;
+    sk_buff * skb = NULL;
+
+    skb = skb_alloc_and_init(type, data, length);
+    if(!skb) {
+        LOG_ERROR(LOG_TAG, "hci_h5_send_acl_data, alloc skb buffer fail!");
+        return -1;
+    }
+
+#if H5_BTSNOOP_DUMP
+    HC_BT_HDR *p_msg;
+    uint16_t len = BT_HC_HDR_SIZE + skb_get_data_length(skb);
+    p_msg = (HC_BT_HDR *) buffer_allocator->alloc(len);
+    /* Initialize buffer with received h5 data */
+    p_msg->offset = 0;
+    p_msg->layer_specific = 0;
+    p_msg->event = MSG_STACK_TO_HC_HCI_ACL;
+    p_msg->len = skb_get_data_length(skb);
+    memcpy((uint8_t *)(p_msg + 1), skb_get_data(skb), skb_get_data_length(skb));
+    h5_btsnoop_capture(p_msg, FALSE);
+    buffer_allocator->free(p_msg);
+#endif
+
+#if RTK_BTSNOOP_NET_DUMP
+    rtk_btsnoop_net_write(HCI_ACLDATA_PKT, (uint8_t *)skb_get_data(skb),FALSE);
+#endif
+
+    h5_enqueue(skb);
+
+    bytes_to_send = h5_wake_up();
+    return length;
+}
+
+/*******************************************************************************
+**
+** Function        hci_h5_send_sco_data
+**
+** Description     get sco data from hal and send sco data
+**
+**
+** Returns          bytes send
+**
+*******************************************************************************/
+uint16_t hci_h5_send_sco_data(serial_data_type_t type, uint8_t *data, uint16_t length)
+{
+    sk_buff * skb = NULL;
+    uint16_t bytes_to_send, lay_spec;
+
+    skb = skb_alloc_and_init(type, data, length);
+    if(!skb) {
+        LOG_ERROR(LOG_TAG, "send sco data skb_alloc_and_init fail!");
+        return -1;
+    }
+
+#if H5_BTSNOOP_DUMP
+    HC_BT_HDR *p_msg;
+    uint16_t len = BT_HC_HDR_SIZE + skb_get_data_length(skb);
+    p_msg = (HC_BT_HDR *) buffer_allocator->alloc(len);
+    /* Initialize buffer with received h5 data */
+    p_msg->offset = 0;
+    p_msg->layer_specific = 0;
+    p_msg->event = MSG_STACK_TO_HC_HCI_SCO;
+    p_msg->len = skb_get_data_length(skb);
+    memcpy((uint8_t *)(p_msg + 1), skb_get_data(skb), skb_get_data_length(skb));
+    h5_btsnoop_capture(p_msg, FALSE);
+    buffer_allocator->free(p_msg);
+#endif
+
+#if RTK_BTSNOOP_NET_DUMP
+    rtk_btsnoop_net_write(HCI_SCODATA_PKT, (uint8_t *)skb_get_data(skb),FALSE);
+#endif
+
+    h5_enqueue(skb);
+
+    bytes_to_send = h5_wake_up();
+    return length;
+}
+
+
+/*******************************************************************************
+**
+** Function        hci_h5_send_int_cmd
+**
+** Description     Place the internal commands (issued internally by vendor lib)
+**                 in the tx_q.
+**
+** Returns         TRUE/FALSE
+**
+*******************************************************************************/
+uint8_t hci_h5_send_sync_cmd(uint16_t opcode, uint8_t *p_buf, uint16_t length)
+{
+    if(rtk_h5.link_estab_state == H5_UNINITIALIZED)
+    {
+        if(opcode == HCI_VSC_H5_INIT)
+        {
+            h5_start_hw_init_ready_timer();
+            hci_h5_send_sync_req();
+            h5_start_sync_retrans_timer();
+        }
+    }
+    else if(rtk_h5.link_estab_state == H5_ACTIVE)
+    {
+        H5LogMsg("hci_h5_send_sync_cmd(0x%x), link_estab_state = %d", opcode, rtk_h5.link_estab_state);
+        return FALSE;
+    }
+
+    return TRUE;
+}
+
+uint8_t hci_h5_send_int_cmd(uint16_t opcode, HC_BT_HDR *p_buf, tINT_CMD_CBACK p_cback)
+{
+   // uint8_t * p =  (uint8_t *) (p_buf + 1);
+
+    if(rtk_h5.link_estab_state == H5_UNINITIALIZED)
+    {
+        if(opcode == HCI_VSC_H5_INIT)
+        {
+            h5_start_hw_init_ready_timer();
+            rtk_h5.cback_h5sync = p_cback;
+            hci_h5_send_sync_req();
+            h5_start_sync_retrans_timer();
+        }
+    }
+    else if(rtk_h5.link_estab_state == H5_ACTIVE)
+    {
+        if(opcode == 0xFC17)
+            rtk_h5.cback_h5sync = p_cback;
+
+        H5LogMsg("hci_h5_send_int_cmd(0x%x)", opcode);
+        if (rtk_h5.int_cmd_rsp_pending > INT_CMD_PKT_MAX_COUNT)
+        {
+            ALOGE( \
+            "Allow only %d outstanding internal commands at a time [Reject 0x%04X]"\
+            , INT_CMD_PKT_MAX_COUNT, opcode);
+            return FALSE;
+        }
+
+        rtk_h5.int_cmd_rsp_pending++;
+        rtk_h5.int_cmd[rtk_h5.int_cmd_wrt_idx].opcode = opcode;
+        rtk_h5.int_cmd[rtk_h5.int_cmd_wrt_idx].cback = p_cback;
+        rtk_h5.int_cmd_wrt_idx = ((rtk_h5.int_cmd_wrt_idx+1) & INT_CMD_PKT_IDX_MASK);
+
+        p_buf->layer_specific = opcode;
+
+        if(opcode == HCI_VSC_UPDATE_BAUDRATE
+            ||opcode == HCI_VSC_DOWNLOAD_FW_PATCH
+            ||opcode == HCI_VSC_READ_ROM_VERSION
+            ||opcode == HCI_VSC_READ_CHIP_TYPE
+            ||opcode == HCI_READ_LOCAL_VERSION_INFO
+            ||opcode == HCI_READ_BUFFER_SIZE
+            ||opcode == HCI_LE_READ_BUFFER_SIZE )
+        {
+            /* stamp signature to indicate an internal command */
+            if(p_buf != NULL)
+                btsnoop->capture((BT_HDR *)p_buf, FALSE);
+                uint8_t *p = ((uint8_t *)(p_buf + 1)) + p_buf->offset;
+                hci_h5_send_cmd(DATA_TYPE_COMMAND, p, p_buf->len);
+                //hci_h5_send_msg(p_buf);
+                buffer_allocator->free(p_buf);
+        }
+
+    }
+
+    return TRUE;
+}
+
+/***
+    Timer related functions
+*/
+static timer_t OsAllocateTimer(tTIMER_HANDLE_CBACK timer_callback)
+{
+    struct sigevent sigev;
+    timer_t timerid;
+
+    memset(&sigev, 0, sizeof(struct sigevent));
+    // Create the POSIX timer to generate signo
+    sigev.sigev_notify = SIGEV_THREAD;
+    //sigev.sigev_notify_thread_id = syscall(__NR_gettid);
+    sigev.sigev_notify_function = timer_callback;
+    sigev.sigev_value.sival_ptr = &timerid;
+
+    LOG_ERROR(LOG_TAG, "OsAllocateTimer rtk_parse sigev.sigev_notify_thread_id = syscall(__NR_gettid)!");
+    //Create the Timer using timer_create signal
+
+    if (timer_create(CLOCK_REALTIME, &sigev, &timerid) == 0)
+    {
+        return timerid;
+    }
+    else
+    {
+        LOG_ERROR(LOG_TAG, "timer_create error!");
+        return (timer_t)-1;
+    }
+}
+
+ int OsFreeTimer(timer_t timerid)
+{
+    int ret = 0;
+    ret = timer_delete(timerid);
+    if(ret != 0)
+        LOG_ERROR(LOG_TAG, "timer_delete fail with errno(%d)", errno);
+
+    return ret;
+}
+
+
+ static int OsStartTimer(timer_t timerid, int msec, int mode)
+ {
+    struct itimerspec itval;
+
+    itval.it_value.tv_sec = msec / 1000;
+    itval.it_value.tv_nsec = (long)(msec % 1000) * (1000000L);
+
+    if (mode == 1)
+
+    {
+        itval.it_interval.tv_sec    = itval.it_value.tv_sec;
+        itval.it_interval.tv_nsec = itval.it_value.tv_nsec;
+    }
+    else
+    {
+        itval.it_interval.tv_sec = 0;
+        itval.it_interval.tv_nsec = 0;
+    }
+
+    //Set the Timer when to expire through timer_settime
+
+    if (timer_settime(timerid, 0, &itval, NULL) != 0)
+    {
+        LOG_ERROR(LOG_TAG, "time_settime error!");
+        return -1;
+    }
+
+    return 0;
+
+}
+
+ static int OsStopTimer(timer_t timerid)
+ {
+    return OsStartTimer(timerid, 0, 0);
+ }
+
+static void h5_retransfer_timeout_handler(union sigval sigev_value) {
+    H5LogMsg("h5_retransfer_timeout_handler");
+    if(rtk_h5.cleanuping)
+    {
+        LOG_ERROR(LOG_TAG, "h5_retransfer_timeout_handler H5 is cleanuping, EXIT here!");
+        return;
+    }
+    h5_retransfer_signal_event(H5_EVENT_RX);
+}
+
+static void h5_sync_retrans_timeout_handler(union sigval sigev_value) {
+    H5LogMsg("h5_sync_retrans_timeout_handler");
+    if(rtk_h5.cleanuping)
+    {
+        LOG_ERROR(LOG_TAG, "h5_sync_retrans_timeout_handler H5 is cleanuping, EXIT here!");
+        return;
+    }
+    if(rtk_h5.sync_retrans_count < SYNC_RETRANS_COUNT)
+    {
+        hci_h5_send_sync_req();
+        rtk_h5.sync_retrans_count ++;
+    }
+    else
+    {
+        h5_stop_sync_retrans_timer();
+    }
+
+}
+
+static void h5_conf_retrans_timeout_handler(union sigval sigev_value) {
+    H5LogMsg("h5_conf_retrans_timeout_handler");
+    if(rtk_h5.cleanuping)
+    {
+        LOG_ERROR(LOG_TAG, "h5_conf_retrans_timeout_handler H5 is cleanuping, EXIT here!");
+        return;
+    }
+
+    H5LogMsg("Wait H5 Conf Resp timeout, %d times", rtk_h5.conf_retrans_count);
+    if(rtk_h5.conf_retrans_count < CONF_RETRANS_COUNT)
+    {
+        hci_h5_send_conf_req();
+        rtk_h5.conf_retrans_count++;
+    }
+    else
+    {
+        h5_stop_conf_retrans_timer();
+    }
+
+}
+
+static void h5_wait_controller_baudrate_ready_timeout_handler(union sigval sigev_value) {
+    H5LogMsg("h5_wait_ct_baundrate_ready_timeout_handler");
+    if(rtk_h5.cleanuping)
+    {
+        LOG_ERROR(LOG_TAG, "h5_wait_controller_baudrate_ready_timeout_handler H5 is cleanuping, EXIT here!");
+        if(rtk_h5.internal_skb)
+            skb_free(&rtk_h5.internal_skb);
+        return;
+    }
+    H5LogMsg("No Controller retransfer, baudrate of controller ready");
+    pthread_mutex_lock(&rtk_h5.data_mutex);
+    skb_queue_tail(rtk_h5.recv_data, rtk_h5.internal_skb);
+    pthread_cond_signal(&rtk_h5.data_cond);
+    pthread_mutex_unlock(&rtk_h5.data_mutex);
+
+    rtk_h5.internal_skb = NULL;
+}
+
+static void h5_hw_init_ready_timeout_handler(union sigval sigev_value) {
+    H5LogMsg("h5_hw_init_ready_timeout_handler");
+    if(rtk_h5.cleanuping)
+    {
+        LOG_ERROR(LOG_TAG, "H5 is cleanuping, EXIT here!");
+        return;
+    }
+    H5LogMsg("TIMER_H5_HW_INIT_READY timeout, kill restart BT");
+    kill(getpid(), SIGKILL);
+}
+
+/*
+** h5 data retrans timer functions
+*/
+int h5_alloc_data_retrans_timer()
+ {
+    // Create and set the timer when to expire
+    rtk_h5.timer_data_retrans = OsAllocateTimer(h5_retransfer_timeout_handler);
+
+    return 0;
+ }
+
+int h5_free_data_retrans_timer()
+{
+    return OsFreeTimer(rtk_h5.timer_data_retrans);
+}
+
+
+int h5_start_data_retrans_timer()
+{
+    return OsStartTimer(rtk_h5.timer_data_retrans, DATA_RETRANS_TIMEOUT_VALUE, 0);
+}
+
+int h5_stop_data_retrans_timer()
+{
+    return OsStopTimer(rtk_h5.timer_data_retrans);
+}
+
+
+
+/*
+** h5 sync retrans timer functions
+*/
+int h5_alloc_sync_retrans_timer()
+ {
+    // Create and set the timer when to expire
+    rtk_h5.timer_sync_retrans = OsAllocateTimer(h5_sync_retrans_timeout_handler);
+
+    return 0;
+
+ }
+
+int h5_free_sync_retrans_timer()
+{
+    return OsFreeTimer(rtk_h5.timer_sync_retrans);
+}
+
+
+int h5_start_sync_retrans_timer()
+{
+    return OsStartTimer(rtk_h5.timer_sync_retrans, SYNC_RETRANS_TIMEOUT_VALUE, 1);
+}
+
+int h5_stop_sync_retrans_timer()
+{
+    return OsStopTimer(rtk_h5.timer_sync_retrans);
+}
+
+
+/*
+** h5 config retrans timer functions
+*/
+int h5_alloc_conf_retrans_timer()
+ {
+    // Create and set the timer when to expire
+    rtk_h5.timer_conf_retrans = OsAllocateTimer(h5_conf_retrans_timeout_handler);
+
+    return 0;
+
+ }
+
+int h5_free_conf_retrans_timer()
+{
+    return OsFreeTimer(rtk_h5.timer_conf_retrans);
+}
+
+
+int h5_start_conf_retrans_timer()
+{
+    return OsStartTimer(rtk_h5.timer_conf_retrans, CONF_RETRANS_TIMEOUT_VALUE, 1);
+}
+
+int h5_stop_conf_retrans_timer()
+{
+    return OsStopTimer(rtk_h5.timer_conf_retrans);
+}
+
+
+/*
+** h5 wait controller baudrate ready timer functions
+*/
+int h5_alloc_wait_controller_baudrate_ready_timer()
+ {
+    // Create and set the timer when to expire
+    rtk_h5.timer_wait_ct_baudrate_ready = OsAllocateTimer(h5_wait_controller_baudrate_ready_timeout_handler);
+
+    return 0;
+ }
+
+int h5_free_wait_controller_baudrate_ready_timer()
+{
+    return OsFreeTimer(rtk_h5.timer_wait_ct_baudrate_ready);
+}
+
+
+int h5_start_wait_controller_baudrate_ready_timer()
+{
+    return OsStartTimer(rtk_h5.timer_wait_ct_baudrate_ready, WAIT_CT_BAUDRATE_READY_TIMEOUT_VALUE, 0);
+}
+
+int h5_stop_wait_controller_baudrate_ready_timer()
+{
+    return OsStopTimer(rtk_h5.timer_wait_ct_baudrate_ready);
+}
+
+
+/*
+** h5 hw init ready timer functions
+*/
+int h5_alloc_hw_init_ready_timer()
+ {
+    // Create and set the timer when to expire
+    rtk_h5.timer_h5_hw_init_ready = OsAllocateTimer(h5_hw_init_ready_timeout_handler);
+
+    return 0;
+
+ }
+
+int h5_free_hw_init_ready_timer()
+{
+    return OsFreeTimer(rtk_h5.timer_h5_hw_init_ready);
+}
+
+
+int h5_start_hw_init_ready_timer()
+{
+    return OsStartTimer(rtk_h5.timer_h5_hw_init_ready, H5_HW_INIT_READY_TIMEOUT_VALUE, 0);
+}
+
+int h5_stop_hw_init_ready_timer()
+{
+    return OsStopTimer(rtk_h5.timer_h5_hw_init_ready);
+}
+
+
+/******************************************************************************
+**  HCI H5 Services interface table
+******************************************************************************/
+
+const tHCI_H5_IF hci_h5_func_table =
+{
+    .send_int_cmd = hci_h5_send_int_cmd,
+};
+
+const hci_h5_t hci_h5_int_func_table =
+{
+    .h5_int_init        = hci_h5_int_init,
+    .h5_int_cleanup     = hci_h5_cleanup,
+    .h5_send_cmd        = hci_h5_send_cmd,
+    .h5_send_sync_cmd   = hci_h5_send_sync_cmd,
+    .h5_send_acl_data   = hci_h5_send_acl_data,
+    .h5_send_sco_data   = hci_h5_send_sco_data,
+    .h5_recv_msg        = hci_h5_receive_msg,
+    .h5_int_read_data   = hci_h5_int_read_data,
+};
+
+const hci_h5_t *hci_get_h5_int_interface() {
+  return &hci_h5_int_func_table;
+}
+
+const tHCI_H5_IF *hci_get_h5_interface() {
+  return &hci_h5_func_table;
+}
+
+
diff --git a/rtkbt/code/bt/hci/src/hci_h5_int.h b/rtkbt/code/bt/hci/src/hci_h5_int.h
new file mode 100755
index 0000000..a074e43
--- /dev/null
+++ b/rtkbt/code/bt/hci/src/hci_h5_int.h
@@ -0,0 +1,66 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+#include <stdbool.h>
+#include <stdint.h>
+
+#include "osi/include/thread.h"
+#include "osi/include/log.h"
+#include "vendor.h"
+#include "hci_hal.h"
+#include "hcidefs.h"
+
+//HCI Command opcodes
+#define HCI_LE_READ_BUFFER_SIZE     0x2002
+#define DATA_TYPE_H5                0x05
+
+//HCI VENDOR Command opcode
+#define HCI_VSC_H5_INIT                 0xFCEE
+#define HCI_VSC_UPDATE_BAUDRATE         0xFC17
+#define HCI_VSC_DOWNLOAD_FW_PATCH       0xFC20
+#define HCI_VSC_READ_ROM_VERSION        0xFC6D
+#define HCI_VSC_READ_CHIP_TYPE          0xFC61
+#define HCI_VSC_SET_WAKE_UP_DEVICE      0xFC7B
+#define HCI_VSC_BT_OFF                  0xFC28
+
+
+typedef struct hci_h5_hal_callbacks_t{
+    uint16_t    (*h5_int_transmit_data_cb)(serial_data_type_t type, uint8_t *data, uint16_t length);
+    void        (*h5_data_ready_cb)(serial_data_type_t type);
+} hci_h5_hal_callbacks_t;
+
+typedef struct hci_h5_t {
+     void     (*h5_int_init)(hci_h5_hal_callbacks_t *h5_callbacks);
+     void     (*h5_int_cleanup)(void);
+     uint16_t (*h5_send_cmd)(serial_data_type_t type, uint8_t *data, uint16_t length);
+     uint8_t  (*h5_send_sync_cmd)(uint16_t opcode, uint8_t *data, uint16_t length);
+     uint16_t (*h5_send_acl_data)(serial_data_type_t type, uint8_t *data, uint16_t length);
+     uint16_t (*h5_send_sco_data)(serial_data_type_t type, uint8_t *data, uint16_t length);
+     BOOLEAN  (*h5_recv_msg)(uint8_t *byte, uint16_t length);
+     size_t   (*h5_int_read_data)(uint8_t *data_buffer, size_t max_size);
+} hci_h5_t;
+
+typedef struct {
+    uint8_t (*send_int_cmd)(uint16_t opcode, HC_BT_HDR *p_buf, tINT_CMD_CBACK p_cback);
+} tHCI_H5_IF;
+
+const hci_h5_t *hci_get_h5_int_interface(void);
+
+
diff --git a/rtkbt/code/bt/hci/src/hci_hal.c b/rtkbt/code/bt/hci/src/hci_hal.c
new file mode 100755
index 0000000..5b935a3
--- /dev/null
+++ b/rtkbt/code/bt/hci/src/hci_hal.c
@@ -0,0 +1,38 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#include "hci_hal.h"
+#ifdef BLUETOOTH_RTK
+extern bool bluetooth_rtk_h5_flag;
+#endif
+const hci_hal_t *hci_hal_get_interface() {
+#if HCI_USE_MCT
+  return hci_hal_mct_get_interface();
+#else
+#ifdef BLUETOOTH_RTK
+  if(bluetooth_rtk_h5_flag) {
+    return hci_hal_h5_get_interface();
+  }
+  else
+    return hci_hal_h4_get_interface();
+#else
+  return hci_hal_h4_get_interface();
+#endif
+#endif
+}
+
diff --git a/rtkbt/code/bt/hci/src/hci_hal_h4.c b/rtkbt/code/bt/hci/src/hci_hal_h4.c
new file mode 100755
index 0000000..062b6c0
--- /dev/null
+++ b/rtkbt/code/bt/hci/src/hci_hal_h4.c
@@ -0,0 +1,264 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_hci_h4"
+
+#include <assert.h>
+#include <errno.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "hci_hal.h"
+#include "osi/include/eager_reader.h"
+#include "osi/include/log.h"
+#include "osi/include/osi.h"
+#include "osi/include/reactor.h"
+#include "osi/include/thread.h"
+#include "vendor.h"
+
+#define HCI_HAL_SERIAL_BUFFER_SIZE 1026
+#define HCI_BLE_EVENT 0x3e
+
+// Increased HCI thread priority to keep up with the audio sub-system
+// when streaming time sensitive data (A2DP).
+#define HCI_THREAD_PRIORITY -19
+
+// Our interface and modules we import
+static const hci_hal_t interface;
+static const hci_hal_callbacks_t *callbacks;
+static const vendor_t *vendor;
+
+static thread_t *thread; // Not owned by us
+
+static int uart_fd;
+static eager_reader_t *uart_stream;
+static serial_data_type_t current_data_type;
+static bool stream_has_interpretation;
+static bool stream_corruption_detected;
+static uint8_t stream_corruption_bytes_to_ignore;
+
+static void event_uart_has_bytes(eager_reader_t *reader, void *context);
+
+// Interface functions
+
+static bool hal_init(const hci_hal_callbacks_t *upper_callbacks, thread_t *upper_thread) {
+  assert(upper_callbacks != NULL);
+  assert(upper_thread != NULL);
+
+  callbacks = upper_callbacks;
+  thread = upper_thread;
+  return true;
+}
+
+static bool hal_open() {
+  LOG_INFO(LOG_TAG, "%s", __func__);
+  // TODO(zachoverflow): close if already open / or don't reopen (maybe at the hci layer level)
+
+  int fd_array[CH_MAX];
+  int number_of_ports = vendor->send_command(VENDOR_OPEN_USERIAL, &fd_array);
+
+  if (number_of_ports != 1) {
+    LOG_ERROR(LOG_TAG, "%s opened the wrong number of ports: got %d, expected 1.", __func__, number_of_ports);
+    goto error;
+  }
+
+  uart_fd = fd_array[0];
+  if (uart_fd == INVALID_FD) {
+    LOG_ERROR(LOG_TAG, "%s unable to open the uart serial port.", __func__);
+    goto error;
+  }
+
+  uart_stream = eager_reader_new(uart_fd, &allocator_malloc, HCI_HAL_SERIAL_BUFFER_SIZE, SIZE_MAX, "hci_single_channel");
+  if (!uart_stream) {
+    LOG_ERROR(LOG_TAG, "%s unable to create eager reader for the uart serial port.", __func__);
+    goto error;
+  }
+
+  stream_has_interpretation = false;
+  stream_corruption_detected = false;
+  stream_corruption_bytes_to_ignore = 0;
+  eager_reader_register(uart_stream, thread_get_reactor(thread), event_uart_has_bytes, NULL);
+
+  // Raise thread priorities to keep up with audio
+  thread_set_priority(thread, HCI_THREAD_PRIORITY);
+  thread_set_priority(eager_reader_get_read_thread(uart_stream), HCI_THREAD_PRIORITY);
+
+  return true;
+
+error:
+  interface.close();
+  return false;
+}
+
+static void hal_close() {
+  LOG_INFO(LOG_TAG, "%s", __func__);
+
+  eager_reader_free(uart_stream);
+  vendor->send_command(VENDOR_CLOSE_USERIAL, NULL);
+  uart_fd = INVALID_FD;
+}
+
+static size_t read_data(serial_data_type_t type, uint8_t *buffer, size_t max_size) {
+  if (type < DATA_TYPE_ACL || type > DATA_TYPE_EVENT) {
+    LOG_ERROR(LOG_TAG, "%s invalid data type: %d", __func__, type);
+    return 0;
+  } else if (!stream_has_interpretation) {
+    LOG_ERROR(LOG_TAG, "%s with no valid stream intepretation.", __func__);
+    return 0;
+  } else if (current_data_type != type) {
+    LOG_ERROR(LOG_TAG, "%s with different type than existing interpretation.", __func__);
+    return 0;
+  }
+
+  return eager_reader_read(uart_stream, buffer, max_size);
+}
+
+static void packet_finished(serial_data_type_t type) {
+  if (!stream_has_interpretation)
+    LOG_ERROR(LOG_TAG, "%s with no existing stream interpretation.", __func__);
+  else if (current_data_type != type)
+    LOG_ERROR(LOG_TAG, "%s with different type than existing interpretation.", __func__);
+
+  stream_has_interpretation = false;
+}
+
+static uint16_t transmit_data(serial_data_type_t type, uint8_t *data, uint16_t length) {
+  assert(data != NULL);
+  assert(length > 0);
+
+  if (type < DATA_TYPE_COMMAND || type > DATA_TYPE_SCO) {
+    LOG_ERROR(LOG_TAG, "%s invalid data type: %d", __func__, type);
+    return 0;
+  }
+
+  // Write the signal byte right before the data
+  --data;
+  uint8_t previous_byte = *data;
+  *(data) = type;
+  ++length;
+
+  uint16_t transmitted_length = 0;
+  while (length > 0) {
+    ssize_t ret;
+    OSI_NO_INTR(ret = write(uart_fd, data + transmitted_length, length));
+    switch (ret) {
+      case -1:
+        LOG_ERROR(LOG_TAG, "In %s, error writing to the uart serial port: %s", __func__, strerror(errno));
+        goto done;
+      case 0:
+        // If we wrote nothing, don't loop more because we
+        // can't go to infinity or beyond
+        goto done;
+      default:
+        transmitted_length += ret;
+        length -= ret;
+        break;
+    }
+  }
+
+done:;
+  // Be nice and restore the old value of that byte
+  *(data) = previous_byte;
+
+  // Remove the signal byte from our transmitted length, if it was actually written
+  if (transmitted_length > 0)
+    --transmitted_length;
+
+  return transmitted_length;
+}
+
+// Internal functions
+
+// WORKAROUND:
+// As exhibited by b/23934838, during result-heavy LE scans, the UART byte
+// stream can get corrupted, leading to assertions caused by mis-interpreting
+// the bytes following the corruption.
+// This workaround looks for tell-tale signs of a BLE event and attempts to
+// skip the correct amount of bytes in the stream to re-synchronize onto
+// a packet boundary.
+// Function returns true if |byte_read| has been processed by the workaround.
+static bool stream_corrupted_during_le_scan_workaround(const uint8_t byte_read)
+{
+  if (!stream_corruption_detected && byte_read == HCI_BLE_EVENT) {
+    LOG_ERROR(LOG_TAG, "%s HCI stream corrupted (message type 0x3E)!", __func__);
+    stream_corruption_detected = true;
+    return true;
+  }
+
+  if (stream_corruption_detected) {
+    if (stream_corruption_bytes_to_ignore == 0) {
+      stream_corruption_bytes_to_ignore = byte_read;
+      LOG_ERROR(LOG_TAG, "%s About to skip %d bytes...", __func__, stream_corruption_bytes_to_ignore);
+    } else {
+      --stream_corruption_bytes_to_ignore;
+    }
+
+    if (stream_corruption_bytes_to_ignore == 0) {
+      LOG_ERROR(LOG_TAG, "%s Back to our regularly scheduled program...", __func__);
+      stream_corruption_detected = false;
+    }
+    return true;
+  }
+
+  return false;
+}
+
+// See what data is waiting, and notify the upper layer
+static void event_uart_has_bytes(eager_reader_t *reader, UNUSED_ATTR void *context) {
+  if (stream_has_interpretation) {
+    callbacks->data_ready(current_data_type);
+  } else {
+    uint8_t type_byte;
+    if (eager_reader_read(reader, &type_byte, 1) == 0) {
+      LOG_ERROR(LOG_TAG, "%s could not read HCI message type", __func__);
+      return;
+    }
+
+    if (stream_corrupted_during_le_scan_workaround(type_byte))
+      return;
+
+    if (type_byte < DATA_TYPE_ACL || type_byte > DATA_TYPE_EVENT) {
+      LOG_ERROR(LOG_TAG, "%s Unknown HCI message type. Dropping this byte 0x%x, min %x, max %x", __func__, type_byte, DATA_TYPE_ACL, DATA_TYPE_EVENT);
+      return;
+    }
+
+    stream_has_interpretation = true;
+    current_data_type = type_byte;
+  }
+}
+
+static const hci_hal_t interface = {
+  hal_init,
+
+  hal_open,
+  hal_close,
+
+  read_data,
+  packet_finished,
+  transmit_data,
+};
+
+const hci_hal_t *hci_hal_h4_get_interface() {
+  vendor = vendor_get_interface();
+  return &interface;
+}
+
+const hci_hal_t *hci_hal_h4_get_test_interface(vendor_t *vendor_interface) {
+  vendor = vendor_interface;
+  return &interface;
+}
diff --git a/rtkbt/code/bt/hci/src/hci_hal_h5.c b/rtkbt/code/bt/hci/src/hci_hal_h5.c
new file mode 100755
index 0000000..79a16b1
--- /dev/null
+++ b/rtkbt/code/bt/hci/src/hci_hal_h5.c
@@ -0,0 +1,312 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_hci_h5"
+
+#include <assert.h>
+#include <errno.h>
+#include <string.h>
+
+#include "osi/include/eager_reader.h"
+#include "hci_hal.h"
+#include "osi/include/osi.h"
+#include "osi/include/log.h"
+#include "osi/include/reactor.h"
+#include "osi/include/thread.h"
+#include "vendor.h"
+
+#include "hci_layer.h"
+#include "hci_h5_int.h"
+
+#define HCI_HAL_SERIAL_BUFFER_SIZE 1026
+#define HCI_BLE_EVENT 0x3e
+
+// Increased HCI thread priority to keep up with the audio sub-system
+// when streaming time sensitive data (A2DP).
+#define HCI_THREAD_PRIORITY -19
+
+// Our interface and modules we import
+static const hci_hal_t h5_interface;
+static const hci_h5_t* h5_int_interface;
+static const hci_hal_callbacks_t *h5_hal_callbacks;
+static const vendor_t *h5_vendor;
+
+static thread_t *thread; // Not owned by us
+
+static int uart_fd;
+static eager_reader_t *uart_stream;
+static serial_data_type_t current_data_type;
+static bool stream_has_interpretation;
+static bool stream_corruption_detected;
+static uint8_t stream_corruption_bytes_to_ignore;
+
+static void h5_data_ready_cb(serial_data_type_t type);
+static uint16_t h5_int_transmit_data_cb(serial_data_type_t type, uint8_t *data, uint16_t length) ;
+static void h5_event_uart_has_bytes(eager_reader_t *reader, void *context);
+
+static  hci_h5_hal_callbacks_t h5_int_hal_callbacks = {
+    .h5_int_transmit_data_cb = h5_int_transmit_data_cb,
+    .h5_data_ready_cb = h5_data_ready_cb,
+};
+
+
+// Interface functions
+
+static bool h5_hal_init(const hci_hal_callbacks_t *upper_callbacks, thread_t *upper_thread) {
+  assert(upper_callbacks != NULL);
+  assert(upper_thread != NULL);
+
+  h5_hal_callbacks = upper_callbacks;
+  thread = upper_thread;
+  h5_int_interface = hci_get_h5_int_interface();
+  h5_int_interface->h5_int_init(&h5_int_hal_callbacks);
+  return true;
+}
+
+static bool h5_hal_open() {
+  LOG_INFO(LOG_TAG, "%s", __func__);
+  // TODO(zachoverflow): close if already open / or don't reopen (maybe at the hci layer level)
+
+  int fd_array[CH_MAX];
+  int number_of_ports = h5_vendor->send_command(VENDOR_OPEN_USERIAL, &fd_array);
+
+  if (number_of_ports != 1) {
+    LOG_ERROR(LOG_TAG, "%s opened the wrong number of ports: got %d, expected 1.", __func__, number_of_ports);
+    goto error;
+  }
+
+  uart_fd = fd_array[0];
+  if (uart_fd == INVALID_FD) {
+    LOG_ERROR(LOG_TAG, "%s unable to open the uart serial port.", __func__);
+    goto error;
+  }
+
+  uart_stream = eager_reader_new(uart_fd, &allocator_malloc, HCI_HAL_SERIAL_BUFFER_SIZE, SIZE_MAX, "hci_single_channel");
+  if (!uart_stream) {
+    LOG_ERROR(LOG_TAG, "%s unable to create eager reader for the uart serial port.", __func__);
+    goto error;
+  }
+
+  stream_has_interpretation = false;
+  stream_corruption_detected = false;
+  stream_corruption_bytes_to_ignore = 0;
+  eager_reader_register(uart_stream, thread_get_reactor(thread), h5_event_uart_has_bytes, NULL);
+
+  // Raise thread priorities to keep up with audio
+  thread_set_priority(thread, HCI_THREAD_PRIORITY);
+  thread_set_priority(eager_reader_get_read_thread(uart_stream), HCI_THREAD_PRIORITY);
+
+  return true;
+
+error:
+  h5_interface.close();
+  return false;
+}
+
+static void h5_hal_close() {
+  LOG_INFO(LOG_TAG, "%s", __func__);
+
+  eager_reader_free(uart_stream);
+  h5_vendor->send_command(VENDOR_CLOSE_USERIAL, NULL);
+  uart_fd = INVALID_FD;
+  h5_int_interface->h5_int_cleanup();
+}
+
+static size_t h5_read_data(serial_data_type_t type, uint8_t *buffer, size_t max_size)
+{
+  int size = 0;
+  if (type < DATA_TYPE_ACL || type > DATA_TYPE_EVENT) {
+    LOG_ERROR(LOG_TAG, "%s invalid data type: %d", __func__, type);
+    return 0;
+  } else if (!stream_has_interpretation) {
+    LOG_ERROR(LOG_TAG, "%s with no valid stream intepretation.", __func__);
+    return 0;
+  } else if (current_data_type != type) {
+    LOG_ERROR(LOG_TAG, "%s with different type than existing interpretation.", __func__);
+    return 0;
+  }
+
+  if(max_size == 0) {
+    return 0;
+  }
+  size = h5_int_interface->h5_int_read_data(buffer, max_size);
+  if(size == -1) {
+    LOG_ERROR(LOG_TAG, "Error there is no data to be read, stack error or fw error!");
+    return 0;
+  }
+  return size;
+}
+
+static void h5_packet_finished(serial_data_type_t type) {
+  if (!stream_has_interpretation)
+    LOG_ERROR(LOG_TAG, "%s with no existing stream interpretation.", __func__);
+  else if (current_data_type != type)
+    LOG_ERROR(LOG_TAG, "%s with different type than existing interpretation.", __func__);
+
+  stream_has_interpretation = false;
+}
+
+uint16_t h5_int_transmit_data_cb(serial_data_type_t type, uint8_t *data, uint16_t length) {
+      assert(data != NULL);
+      assert(length > 0);
+
+      //LOG_DEBUG(LOG_TAG, "hci_hal_h5 %s data type: %d", __func__, type);
+
+      if (type != DATA_TYPE_H5) {
+        LOG_ERROR(LOG_TAG, "%s invalid data type: %d", __func__, type);
+        return 0;
+      }
+
+      uint16_t transmitted_length = 0;
+      while (length > 0) {
+        ssize_t ret = write(uart_fd, data + transmitted_length, length);
+        switch (ret) {
+          case -1:
+            LOG_ERROR(LOG_TAG, "In %s, error writing to the uart serial port: %s", __func__, strerror(errno));
+            goto done;
+          case 0:
+            // If we wrote nothing, don't loop more because we
+            // can't go to infinity or beyond
+            goto done;
+          default:
+            transmitted_length += ret;
+            length -= ret;
+            break;
+        }
+      }
+
+done:;
+
+      return transmitted_length;
+
+}
+
+static void h5_data_ready_cb(serial_data_type_t type)
+{
+    stream_has_interpretation = true;
+    current_data_type = type;
+    h5_hal_callbacks->data_ready(current_data_type);
+}
+
+static uint16_t h5_transmit_data(serial_data_type_t type, uint8_t *data, uint16_t length) {
+    assert(data != NULL);
+    assert(length > 0);
+
+    uint16_t transmitted_length = 0;
+    uint16_t opcode;
+    uint8_t  *data_temp = data;
+    //LOG_DEBUG(LOG_TAG, "hci_hal_h5 %s, data type: %d", __func__, type);
+
+    if (type < DATA_TYPE_COMMAND || type > DATA_TYPE_SCO) {
+        LOG_ERROR(LOG_TAG, "%s invalid data type: %d", __func__, type);
+        return 0;
+    }
+
+    switch (type) {
+    case DATA_TYPE_COMMAND:
+        STREAM_TO_UINT16(opcode, data_temp);
+        //LOG_DEBUG(LOG_TAG, "cmd opcode  = 0x%0x", opcode);
+        if(opcode == HCI_VSC_H5_INIT)
+        {
+            transmitted_length = length;
+            h5_int_interface->h5_send_sync_cmd(opcode, NULL, length);
+            break;
+        }
+        transmitted_length = h5_int_interface->h5_send_cmd(type, data, length);
+    break;
+
+    case DATA_TYPE_ACL:
+        transmitted_length = h5_int_interface->h5_send_acl_data(type, data, length);
+    break;
+
+    case DATA_TYPE_SCO:
+        transmitted_length = h5_int_interface->h5_send_sco_data(type, data, length);
+    break;
+
+    default:
+    break;
+    }
+    return transmitted_length;
+}
+
+// Internal functions
+
+// WORKAROUND:
+// As exhibited by b/23934838, during result-heavy LE scans, the UART byte
+// stream can get corrupted, leading to assertions caused by mis-interpreting
+// the bytes following the corruption.
+// This workaround looks for tell-tale signs of a BLE event and attempts to
+// skip the correct amount of bytes in the stream to re-synchronize onto
+// a packet boundary.
+// Function returns true if |byte_read| has been processed by the workaround.
+static bool stream_corrupted_during_le_scan_workaround(const uint8_t byte_read)
+{
+  if (!stream_corruption_detected && byte_read == HCI_BLE_EVENT) {
+    LOG_ERROR(LOG_TAG, "%s HCI stream corrupted (message type 0x3E)!", __func__);
+    stream_corruption_detected = true;
+    return true;
+  }
+
+  if (stream_corruption_detected) {
+    if (stream_corruption_bytes_to_ignore == 0) {
+      stream_corruption_bytes_to_ignore = byte_read;
+      LOG_ERROR(LOG_TAG, "%s About to skip %d bytes...", __func__, stream_corruption_bytes_to_ignore);
+    } else {
+      --stream_corruption_bytes_to_ignore;
+    }
+
+    if (stream_corruption_bytes_to_ignore == 0) {
+      LOG_ERROR(LOG_TAG, "%s Back to our regularly scheduled program...", __func__);
+      stream_corruption_detected = false;
+    }
+    return true;
+  }
+
+  return false;
+}
+
+// See what data is waiting, and notify the upper layer
+static void h5_event_uart_has_bytes(eager_reader_t *reader, UNUSED_ATTR void *context) {
+    uint8_t data_buffer[10] = {0};
+    size_t read_len = 0;
+    BOOLEAN status = FALSE;
+    read_len = eager_reader_read(reader, data_buffer, 10);
+    if(read_len > 0)
+        status = h5_int_interface->h5_recv_msg(data_buffer, read_len);
+}
+
+static const hci_hal_t h5_interface = {
+  h5_hal_init,
+
+  h5_hal_open,
+  h5_hal_close,
+
+  h5_read_data,
+  h5_packet_finished,
+  h5_transmit_data,
+};
+
+const hci_hal_t *hci_hal_h5_get_interface() {
+  h5_vendor = vendor_get_interface();
+  return &h5_interface;
+}
+
+const hci_hal_t *hci_hal_h5_get_test_interface(vendor_t *vendor_interface) {
+  h5_vendor = vendor_interface;
+  return &h5_interface;
+}
diff --git a/rtkbt/code/bt/hci/src/hci_hal_mct.c b/rtkbt/code/bt/hci/src/hci_hal_mct.c
new file mode 100755
index 0000000..669a9f8
--- /dev/null
+++ b/rtkbt/code/bt/hci/src/hci_hal_mct.c
@@ -0,0 +1,211 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_hci_mct"
+
+#include <assert.h>
+#include <errno.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "bt_vendor_lib.h"
+#include "hci_hal.h"
+#include "osi/include/eager_reader.h"
+#include "osi/include/log.h"
+#include "osi/include/osi.h"
+#include "osi/include/reactor.h"
+#include "vendor.h"
+
+#define HCI_HAL_SERIAL_BUFFER_SIZE 1026
+
+// Our interface and modules we import
+static const hci_hal_t interface;
+static const hci_hal_callbacks_t *callbacks;
+static const vendor_t *vendor;
+
+static thread_t *thread; // Not owned by us
+
+static int uart_fds[CH_MAX];
+static eager_reader_t *event_stream;
+static eager_reader_t *acl_stream;
+
+static uint16_t transmit_data_on(int fd, uint8_t *data, uint16_t length);
+static void event_event_stream_has_bytes(eager_reader_t *reader, void *context);
+static void event_acl_stream_has_bytes(eager_reader_t *reader, void *context);
+
+// Interface functions
+
+static bool hal_init(const hci_hal_callbacks_t *upper_callbacks, thread_t *upper_thread) {
+  assert(upper_callbacks != NULL);
+  assert(upper_thread != NULL);
+
+  callbacks = upper_callbacks;
+  thread = upper_thread;
+  return true;
+}
+
+static bool hal_open() {
+  LOG_INFO(LOG_TAG, "%s", __func__);
+  // TODO(zachoverflow): close if already open / or don't reopen (maybe at the hci layer level)
+
+  int number_of_ports = vendor->send_command(VENDOR_OPEN_USERIAL, &uart_fds);
+
+  if (number_of_ports != 2 && number_of_ports != 4) {
+    LOG_ERROR(LOG_TAG, "%s opened the wrong number of ports: got %d, expected 2 or 4.", __func__, number_of_ports);
+    goto error;
+  }
+
+  LOG_INFO(LOG_TAG, "%s got uart fds: CMD=%d, EVT=%d, ACL_OUT=%d, ACL_IN=%d",
+      __func__, uart_fds[CH_CMD], uart_fds[CH_EVT], uart_fds[CH_ACL_OUT], uart_fds[CH_ACL_IN]);
+
+  if (uart_fds[CH_CMD] == INVALID_FD) {
+    LOG_ERROR(LOG_TAG, "%s unable to open the command uart serial port.", __func__);
+    goto error;
+  }
+
+  if (uart_fds[CH_EVT] == INVALID_FD) {
+    LOG_ERROR(LOG_TAG, "%s unable to open the event uart serial port.", __func__);
+    goto error;
+  }
+
+  if (uart_fds[CH_ACL_OUT] == INVALID_FD) {
+    LOG_ERROR(LOG_TAG, "%s unable to open the acl-out uart serial port.", __func__);
+    goto error;
+  }
+
+  if (uart_fds[CH_ACL_IN] == INVALID_FD) {
+    LOG_ERROR(LOG_TAG, "%s unable to open the acl-in uart serial port.", __func__);
+    goto error;
+  }
+
+  event_stream = eager_reader_new(uart_fds[CH_EVT], &allocator_malloc, HCI_HAL_SERIAL_BUFFER_SIZE, SIZE_MAX, "hci_mct");
+  if (!event_stream) {
+    LOG_ERROR(LOG_TAG, "%s unable to create eager reader for the event uart serial port.", __func__);
+    goto error;
+  }
+
+  acl_stream = eager_reader_new(uart_fds[CH_ACL_IN], &allocator_malloc, HCI_HAL_SERIAL_BUFFER_SIZE, SIZE_MAX, "hci_mct");
+  if (!acl_stream) {
+    LOG_ERROR(LOG_TAG, "%s unable to create eager reader for the acl-in uart serial port.", __func__);
+    goto error;
+  }
+
+  eager_reader_register(event_stream, thread_get_reactor(thread), event_event_stream_has_bytes, NULL);
+  eager_reader_register(acl_stream, thread_get_reactor(thread), event_acl_stream_has_bytes, NULL);
+
+  return true;
+
+error:;
+  interface.close();
+  return false;
+}
+
+static void hal_close() {
+  LOG_INFO(LOG_TAG, "%s", __func__);
+
+  eager_reader_free(event_stream);
+  eager_reader_free(acl_stream);
+  vendor->send_command(VENDOR_CLOSE_USERIAL, NULL);
+
+  for (int i = 0; i < CH_MAX; i++)
+    uart_fds[i] = INVALID_FD;
+}
+
+static size_t read_data(serial_data_type_t type, uint8_t *buffer, size_t max_size) {
+  if (type == DATA_TYPE_ACL) {
+    return eager_reader_read(acl_stream, buffer, max_size);
+  } else if (type == DATA_TYPE_EVENT) {
+    return eager_reader_read(event_stream, buffer, max_size);
+  }
+
+  LOG_ERROR(LOG_TAG, "%s invalid data type: %d", __func__, type);
+  return 0;
+}
+
+static void packet_finished(UNUSED_ATTR serial_data_type_t type) {
+  // not needed by this protocol
+}
+
+static uint16_t transmit_data(serial_data_type_t type, uint8_t *data, uint16_t length) {
+  if (type == DATA_TYPE_ACL) {
+    return transmit_data_on(uart_fds[CH_ACL_OUT], data, length);
+  } else if (type == DATA_TYPE_COMMAND) {
+    return transmit_data_on(uart_fds[CH_CMD], data, length);
+  }
+
+  LOG_ERROR(LOG_TAG, "%s invalid data type: %d", __func__, type);
+  return 0;
+}
+
+// Internal functions
+
+static uint16_t transmit_data_on(int fd, uint8_t *data, uint16_t length) {
+  assert(data != NULL);
+  assert(length > 0);
+
+  uint16_t transmitted_length = 0;
+  while (length > 0) {
+    ssize_t ret;
+    OSI_NO_INTR(ret = write(fd, data + transmitted_length, length));
+    switch (ret) {
+      case -1:
+        LOG_ERROR(LOG_TAG, "In %s, error writing to the serial port with fd %d: %s", __func__, fd, strerror(errno));
+        return transmitted_length;
+      case 0:
+        // If we wrote nothing, don't loop more because we
+        // can't go to infinity or beyond
+        return transmitted_length;
+      default:
+        transmitted_length += ret;
+        length -= ret;
+        break;
+    }
+  }
+
+  return transmitted_length;
+}
+
+static void event_event_stream_has_bytes(UNUSED_ATTR eager_reader_t *reader, UNUSED_ATTR void *context) {
+  callbacks->data_ready(DATA_TYPE_EVENT);
+}
+
+static void event_acl_stream_has_bytes(UNUSED_ATTR eager_reader_t *reader, UNUSED_ATTR void *context) {
+  // No real concept of incoming SCO typed data, just ACL
+  callbacks->data_ready(DATA_TYPE_ACL);
+}
+
+static const hci_hal_t interface = {
+  hal_init,
+
+  hal_open,
+  hal_close,
+
+  read_data,
+  packet_finished,
+  transmit_data,
+};
+
+const hci_hal_t *hci_hal_mct_get_interface() {
+  vendor = vendor_get_interface();
+  return &interface;
+}
+
+const hci_hal_t *hci_hal_mct_get_test_interface(vendor_t *vendor_interface) {
+  vendor = vendor_interface;
+  return &interface;
+}
diff --git a/rtkbt/code/bt/hci/src/hci_inject.c b/rtkbt/code/bt/hci/src/hci_inject.c
new file mode 100755
index 0000000..826ffa2
--- /dev/null
+++ b/rtkbt/code/bt/hci/src/hci_inject.c
@@ -0,0 +1,209 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_hci_inject"
+
+#include "hci_inject.h"
+
+#include <assert.h>
+#include <errno.h>
+#include <string.h>
+
+#include "bt_types.h"
+#include "buffer_allocator.h"
+#include "hci_layer.h"
+#include "osi/include/allocator.h"
+#include "osi/include/list.h"
+#include "osi/include/log.h"
+#include "osi/include/osi.h"
+#include "osi/include/socket.h"
+#include "osi/include/thread.h"
+
+typedef enum {
+  HCI_PACKET_COMMAND  = 1,
+  HCI_PACKET_ACL_DATA = 2,
+  HCI_PACKET_SCO_DATA = 3,
+  HCI_PACKET_EVENT    = 4,
+} hci_packet_t;
+
+typedef struct {
+  socket_t *socket;
+  uint8_t buffer[65536 + 3];  // 2 bytes length prefix, 1 byte type prefix.
+  size_t buffer_size;
+} client_t;
+
+static const port_t LISTEN_PORT = 8873;
+
+static const hci_inject_t interface;
+static const hci_t *hci;
+static const allocator_t *buffer_allocator;
+static socket_t *listen_socket;
+static thread_t *thread;
+static list_t *clients;
+
+static int hci_packet_to_event(hci_packet_t packet);
+static void accept_ready(socket_t *socket, void *context);
+static void read_ready(socket_t *socket, void *context);
+static void client_free(void *ptr);
+
+bool hci_inject_open(const hci_t *hci_interface) {
+#if (!defined(BT_NET_DEBUG) || (BT_NET_DEBUG != TRUE))
+  return true;          // Disable using network sockets for security reasons
+#endif
+
+  assert(listen_socket == NULL);
+  assert(thread == NULL);
+  assert(clients == NULL);
+  assert(hci_interface != NULL);
+
+  hci = hci_interface;
+
+  thread = thread_new("hci_inject");
+  if (!thread)
+    goto error;
+
+  clients = list_new(client_free);
+  if (!clients)
+    goto error;
+
+  listen_socket = socket_new();
+  if (!listen_socket)
+    goto error;
+
+  if (!socket_listen(listen_socket, LISTEN_PORT))
+    goto error;
+
+  socket_register(listen_socket, thread_get_reactor(thread), NULL, accept_ready, NULL);
+  return true;
+
+error:;
+  interface.close();
+  return false;
+}
+
+void hci_inject_close(void) {
+#if (!defined(BT_NET_DEBUG) || (BT_NET_DEBUG != TRUE))
+  return;               // Disable using network sockets for security reasons
+#endif
+
+  socket_free(listen_socket);
+  list_free(clients);
+  thread_free(thread);
+
+  listen_socket = NULL;
+  thread = NULL;
+  clients = NULL;
+}
+
+static int hci_packet_to_event(hci_packet_t packet) {
+  switch (packet) {
+    case HCI_PACKET_COMMAND:
+      return MSG_STACK_TO_HC_HCI_CMD;
+    case HCI_PACKET_ACL_DATA:
+      return MSG_STACK_TO_HC_HCI_ACL;
+    case HCI_PACKET_SCO_DATA:
+      return MSG_STACK_TO_HC_HCI_SCO;
+    default:
+      LOG_ERROR(LOG_TAG, "%s unsupported packet type: %d", __func__, packet);
+      return -1;
+  }
+}
+
+static void accept_ready(socket_t *socket, UNUSED_ATTR void *context) {
+  assert(socket != NULL);
+  assert(socket == listen_socket);
+
+  socket = socket_accept(socket);
+  if (!socket)
+    return;
+
+  client_t *client = (client_t *)osi_calloc(sizeof(client_t));
+
+  client->socket = socket;
+
+  if (!list_append(clients, client)) {
+    LOG_ERROR(LOG_TAG, "%s unable to add client to list.", __func__);
+    client_free(client);
+    return;
+  }
+
+  socket_register(socket, thread_get_reactor(thread), client, read_ready, NULL);
+}
+
+static void read_ready(UNUSED_ATTR socket_t *socket, void *context) {
+  assert(socket != NULL);
+  assert(context != NULL);
+
+  client_t *client = (client_t *)context;
+
+  ssize_t ret = socket_read(client->socket, client->buffer + client->buffer_size, sizeof(client->buffer) - client->buffer_size);
+  if (ret == 0 || (ret == -1 && ret != EWOULDBLOCK && ret != EAGAIN)) {
+    list_remove(clients, client);
+    return;
+  }
+  client->buffer_size += ret;
+
+  while (client->buffer_size > 3) {
+    uint8_t *buffer = client->buffer;
+    hci_packet_t packet_type = (hci_packet_t)buffer[0];
+    size_t packet_len = (buffer[2] << 8) | buffer[1];
+    size_t frame_len = 3 + packet_len;
+
+    if (client->buffer_size < frame_len)
+      break;
+
+    // TODO(sharvil): validate incoming HCI messages.
+    // TODO(sharvil): once we have an HCI parser, we can eliminate
+    //   the 2-byte size field since it will be contained in the packet.
+
+    BT_HDR *buf = (BT_HDR *)buffer_allocator->alloc(BT_HDR_SIZE + packet_len);
+    if (buf) {
+      buf->event = hci_packet_to_event(packet_type);
+      buf->offset = 0;
+      buf->layer_specific = 0;
+      buf->len = packet_len;
+      memcpy(buf->data, buffer + 3, packet_len);
+      hci->transmit_downward(buf->event, buf);
+    } else {
+      LOG_ERROR(LOG_TAG, "%s dropping injected packet of length %zu", __func__, packet_len);
+    }
+
+    size_t remainder = client->buffer_size - frame_len;
+    memmove(buffer, buffer + frame_len, remainder);
+    client->buffer_size -= frame_len;
+  }
+}
+
+static void client_free(void *ptr) {
+  if (!ptr)
+    return;
+
+  client_t *client = (client_t *)ptr;
+  socket_free(client->socket);
+  osi_free(client);
+}
+
+static const hci_inject_t interface = {
+  hci_inject_open,
+  hci_inject_close
+};
+
+const hci_inject_t *hci_inject_get_interface() {
+  buffer_allocator = buffer_allocator_get_interface();
+  return &interface;
+}
diff --git a/rtkbt/code/bt/hci/src/hci_layer.c b/rtkbt/code/bt/hci/src/hci_layer.c
new file mode 100755
index 0000000..be929ef
--- /dev/null
+++ b/rtkbt/code/bt/hci/src/hci_layer.c
@@ -0,0 +1,902 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_hci"
+
+#include "hci_layer.h"
+
+#include <assert.h>
+#include <pthread.h>
+#include <signal.h>
+#include <string.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include "btcore/include/module.h"
+#include "btsnoop.h"
+#include "buffer_allocator.h"
+#include "hci_hal.h"
+#include "hci_inject.h"
+#include "hci_internals.h"
+#include "hcidefs.h"
+#include "hcimsgs.h"
+#include "low_power_manager.h"
+#include "osi/include/alarm.h"
+#include "osi/include/list.h"
+#include "osi/include/log.h"
+#include "osi/include/properties.h"
+#include "osi/include/reactor.h"
+#include "packet_fragmenter.h"
+#include "vendor.h"
+#ifdef BLUETOOTH_RTK_COEX
+#include "rtk_parse.h"
+#endif
+
+// TODO(zachoverflow): remove this hack extern
+#include <hardware/bluetooth.h>
+bt_bdaddr_t btif_local_bd_addr;
+
+#define INBOUND_PACKET_TYPE_COUNT 3
+#define PACKET_TYPE_TO_INBOUND_INDEX(type) ((type) - 2)
+#define PACKET_TYPE_TO_INDEX(type) ((type) - 1)
+
+#define PREAMBLE_BUFFER_SIZE 4 // max preamble size, ACL
+#define RETRIEVE_ACL_LENGTH(preamble) ((((preamble)[3]) << 8) | (preamble)[2])
+
+static const uint8_t preamble_sizes[] = {
+  HCI_COMMAND_PREAMBLE_SIZE,
+  HCI_ACL_PREAMBLE_SIZE,
+  HCI_SCO_PREAMBLE_SIZE,
+  HCI_EVENT_PREAMBLE_SIZE
+};
+
+static const uint16_t outbound_event_types[] =
+{
+  MSG_HC_TO_STACK_HCI_ERR,
+  MSG_HC_TO_STACK_HCI_ACL,
+  MSG_HC_TO_STACK_HCI_SCO,
+  MSG_HC_TO_STACK_HCI_EVT
+};
+
+typedef enum {
+  BRAND_NEW,
+  PREAMBLE,
+  BODY,
+  IGNORE,
+  FINISHED
+} receive_state_t;
+
+typedef struct {
+  receive_state_t state;
+  uint16_t bytes_remaining;
+  uint8_t preamble[PREAMBLE_BUFFER_SIZE];
+  uint16_t index;
+  BT_HDR *buffer;
+} packet_receive_data_t;
+
+typedef struct {
+  uint16_t opcode;
+  future_t *complete_future;
+  command_complete_cb complete_callback;
+  command_status_cb status_callback;
+  void *context;
+  BT_HDR *command;
+} waiting_command_t;
+
+// Using a define here, because it can be stringified for the property lookup
+#define DEFAULT_STARTUP_TIMEOUT_MS 8000
+#define STRING_VALUE_OF(x) #x
+
+static const uint32_t EPILOG_TIMEOUT_MS = 3000;
+static const uint32_t COMMAND_PENDING_TIMEOUT_MS = 8000;
+
+// Our interface
+static bool interface_created;
+static hci_t interface;
+
+// Modules we import and callbacks we export
+static const allocator_t *buffer_allocator;
+static const btsnoop_t *btsnoop;
+static const hci_hal_t *hal;
+#ifdef BLUETOOTH_RTK
+char bt_hci_device_node[BT_HCI_DEVICE_NODE_MAX_LEN] = {0};
+bool bluetooth_rtk_h5_flag = FALSE;
+#endif
+static const hci_hal_callbacks_t hal_callbacks;
+static const hci_inject_t *hci_inject;
+static const low_power_manager_t *low_power_manager;
+static const packet_fragmenter_t *packet_fragmenter;
+static const packet_fragmenter_callbacks_t packet_fragmenter_callbacks;
+static const vendor_t *vendor;
+#ifdef BLUETOOTH_RTK_COEX
+static const rtk_parse_manager_t *rtk_parse_manager;
+#endif
+
+static future_t *startup_future;
+static thread_t *thread; // We own this
+
+static volatile bool firmware_is_configured = false;
+static alarm_t *epilog_timer;
+static alarm_t *startup_timer;
+
+// Outbound-related
+static int command_credits = 1;
+static fixed_queue_t *command_queue;
+static fixed_queue_t *packet_queue;
+
+// Inbound-related
+static alarm_t *command_response_timer;
+static list_t *commands_pending_response;
+static pthread_mutex_t commands_pending_response_lock;
+static packet_receive_data_t incoming_packets[INBOUND_PACKET_TYPE_COUNT];
+
+// The hand-off point for data going to a higher layer, set by the higher layer
+static fixed_queue_t *upwards_data_queue;
+
+static future_t *shut_down();
+
+static void event_finish_startup(void *context);
+static void firmware_config_callback(bool success);
+static void startup_timer_expired(void *context);
+
+static void event_postload(void *context);
+static void sco_config_callback(bool success);
+
+static void event_epilog(void *context);
+static void epilog_finished_callback(bool success);
+static void epilog_timer_expired(void *context);
+
+static void event_command_ready(fixed_queue_t *queue, void *context);
+static void event_packet_ready(fixed_queue_t *queue, void *context);
+static void command_timed_out(void *context);
+
+static void hal_says_data_ready(serial_data_type_t type);
+static bool filter_incoming_event(BT_HDR *packet);
+
+static serial_data_type_t event_to_data_type(uint16_t event);
+static waiting_command_t *get_waiting_command(command_opcode_t opcode);
+static void update_command_response_timer(void);
+
+// Module lifecycle functions
+
+static future_t *start_up(void) {
+  LOG_INFO(LOG_TAG, "%s", __func__);
+
+  // The host is only allowed to send at most one command initially,
+  // as per the Bluetooth spec, Volume 2, Part E, 4.4 (Command Flow Control)
+  // This value can change when you get a command complete or command status event.
+  command_credits = 1;
+  firmware_is_configured = false;
+
+  pthread_mutex_init(&commands_pending_response_lock, NULL);
+
+  // TODO(armansito): cutils/properties.h is only being used to pull-in runtime
+  // settings on Android. Remove this conditional include once we have a generic
+  // way to obtain system properties. For now, always use the default timeout on
+  // non-Android builds.
+  period_ms_t startup_timeout_ms = DEFAULT_STARTUP_TIMEOUT_MS;
+
+  // Grab the override startup timeout ms, if present.
+  char timeout_prop[PROPERTY_VALUE_MAX];
+  if (!osi_property_get("bluetooth.enable_timeout_ms", timeout_prop, STRING_VALUE_OF(DEFAULT_STARTUP_TIMEOUT_MS))
+      || (startup_timeout_ms = atoi(timeout_prop)) < 100)
+    startup_timeout_ms = DEFAULT_STARTUP_TIMEOUT_MS;
+
+  startup_timer = alarm_new("hci.startup_timer");
+  if (!startup_timer) {
+    LOG_ERROR(LOG_TAG, "%s unable to create startup timer.", __func__);
+    goto error;
+  }
+
+  epilog_timer = alarm_new("hci.epilog_timer");
+  if (!epilog_timer) {
+    LOG_ERROR(LOG_TAG, "%s unable to create epilog timer.", __func__);
+    goto error;
+  }
+
+  command_response_timer = alarm_new("hci.command_response_timer");
+  if (!command_response_timer) {
+    LOG_ERROR(LOG_TAG, "%s unable to create command response timer.", __func__);
+    goto error;
+  }
+
+  command_queue = fixed_queue_new(SIZE_MAX);
+  if (!command_queue) {
+    LOG_ERROR(LOG_TAG, "%s unable to create pending command queue.", __func__);
+    goto error;
+  }
+
+  packet_queue = fixed_queue_new(SIZE_MAX);
+  if (!packet_queue) {
+    LOG_ERROR(LOG_TAG, "%s unable to create pending packet queue.", __func__);
+    goto error;
+  }
+
+  thread = thread_new("hci_thread");
+  if (!thread) {
+    LOG_ERROR(LOG_TAG, "%s unable to create thread.", __func__);
+    goto error;
+  }
+
+  commands_pending_response = list_new(NULL);
+  if (!commands_pending_response) {
+    LOG_ERROR(LOG_TAG, "%s unable to create list for commands pending response.", __func__);
+    goto error;
+  }
+
+  memset(incoming_packets, 0, sizeof(incoming_packets));
+
+  // Make sure we run in a bounded amount of time
+  future_t *local_startup_future = future_new();
+  startup_future = local_startup_future;
+  alarm_set(startup_timer, startup_timeout_ms, startup_timer_expired, NULL);
+
+  packet_fragmenter->init(&packet_fragmenter_callbacks);
+
+  fixed_queue_register_dequeue(command_queue, thread_get_reactor(thread), event_command_ready, NULL);
+  fixed_queue_register_dequeue(packet_queue, thread_get_reactor(thread), event_packet_ready, NULL);
+
+  vendor->open(btif_local_bd_addr.address, &interface);
+  hal->init(&hal_callbacks, thread);
+  low_power_manager->init(thread);
+#ifdef BLUETOOTH_RTK_COEX
+  rtk_parse_manager->rtk_parse_init(&interface);
+#endif
+
+  vendor->set_callback(VENDOR_CONFIGURE_FIRMWARE, firmware_config_callback);
+  vendor->set_callback(VENDOR_CONFIGURE_SCO, sco_config_callback);
+  vendor->set_callback(VENDOR_DO_EPILOG, epilog_finished_callback);
+
+  if (!hci_inject->open(&interface)) {
+    // TODO(sharvil): gracefully propagate failures from this layer.
+  }
+
+  int power_state = BT_VND_PWR_OFF;
+#if (defined (BT_CLEAN_TURN_ON_DISABLED) && BT_CLEAN_TURN_ON_DISABLED == TRUE)
+  LOG_WARN(LOG_TAG, "%s not turning off the chip before turning on.", __func__);
+  // So apparently this hack was needed in the past because a Wingray kernel driver
+  // didn't handle power off commands in a powered off state correctly.
+
+  // The comment in the old code said the workaround should be removed when the
+  // problem was fixed. Sadly, I have no idea if said bug was fixed or if said
+  // kernel is still in use, so we must leave this here for posterity. #sadpanda
+#else
+  // cycle power on the chip to ensure it has been reset
+  vendor->send_command(VENDOR_CHIP_POWER_CONTROL, &power_state);
+#endif
+  power_state = BT_VND_PWR_ON;
+  vendor->send_command(VENDOR_CHIP_POWER_CONTROL, &power_state);
+
+  LOG_DEBUG(LOG_TAG, "%s starting async portion", __func__);
+  thread_post(thread, event_finish_startup, NULL);
+  return local_startup_future;
+
+error:
+  shut_down(); // returns NULL so no need to wait for it
+  return future_new_immediate(FUTURE_FAIL);
+}
+
+static future_t *shut_down() {
+  LOG_INFO(LOG_TAG, "%s", __func__);
+
+  hci_inject->close();
+
+  if (thread) {
+    if (firmware_is_configured) {
+      alarm_set(epilog_timer, EPILOG_TIMEOUT_MS, epilog_timer_expired, NULL);
+      thread_post(thread, event_epilog, NULL);
+    } else {
+      thread_stop(thread);
+    }
+
+    thread_join(thread);
+  }
+
+  fixed_queue_free(command_queue, osi_free);
+  command_queue = NULL;
+  fixed_queue_free(packet_queue, buffer_allocator->free);
+  packet_queue = NULL;
+  list_free(commands_pending_response);
+  commands_pending_response = NULL;
+
+  pthread_mutex_destroy(&commands_pending_response_lock);
+
+  packet_fragmenter->cleanup();
+
+  // Free the timers
+  alarm_free(epilog_timer);
+  epilog_timer = NULL;
+  alarm_free(command_response_timer);
+  command_response_timer = NULL;
+  alarm_free(startup_timer);
+  startup_timer = NULL;
+
+  low_power_manager->cleanup();
+  hal->close();
+#ifdef BLUETOOTH_RTK_COEX
+  rtk_parse_manager->rtk_parse_cleanup();
+#endif
+
+  // Turn off the chip
+  int power_state = BT_VND_PWR_OFF;
+  vendor->send_command(VENDOR_CHIP_POWER_CONTROL, &power_state);
+  vendor->close();
+
+  thread_free(thread);
+  thread = NULL;
+  firmware_is_configured = false;
+
+  return NULL;
+}
+
+EXPORT_SYMBOL const module_t hci_module = {
+  .name = HCI_MODULE,
+  .init = NULL,
+  .start_up = start_up,
+  .shut_down = shut_down,
+  .clean_up = NULL,
+  .dependencies = {
+    BTSNOOP_MODULE,
+    NULL
+  }
+};
+
+// Interface functions
+
+static void do_postload() {
+  LOG_DEBUG(LOG_TAG, "%s posting postload work item", __func__);
+  thread_post(thread, event_postload, NULL);
+}
+
+static void set_data_queue(fixed_queue_t *queue) {
+  upwards_data_queue = queue;
+}
+
+static void transmit_command(
+    BT_HDR *command,
+    command_complete_cb complete_callback,
+    command_status_cb status_callback,
+    void *context) {
+  waiting_command_t *wait_entry = osi_calloc(sizeof(waiting_command_t));
+
+  uint8_t *stream = command->data + command->offset;
+  STREAM_TO_UINT16(wait_entry->opcode, stream);
+  wait_entry->complete_callback = complete_callback;
+  wait_entry->status_callback = status_callback;
+  wait_entry->command = command;
+  wait_entry->context = context;
+
+  // Store the command message type in the event field
+  // in case the upper layer didn't already
+  command->event = MSG_STACK_TO_HC_HCI_CMD;
+
+  fixed_queue_enqueue(command_queue, wait_entry);
+}
+
+static future_t *transmit_command_futured(BT_HDR *command) {
+  waiting_command_t *wait_entry = osi_calloc(sizeof(waiting_command_t));
+  future_t *future = future_new();
+
+  uint8_t *stream = command->data + command->offset;
+  STREAM_TO_UINT16(wait_entry->opcode, stream);
+  wait_entry->complete_future = future;
+  wait_entry->command = command;
+
+  // Store the command message type in the event field
+  // in case the upper layer didn't already
+  command->event = MSG_STACK_TO_HC_HCI_CMD;
+
+  fixed_queue_enqueue(command_queue, wait_entry);
+  return future;
+}
+
+static void transmit_downward(data_dispatcher_type_t type, void *data) {
+  if (type == MSG_STACK_TO_HC_HCI_CMD) {
+    // TODO(zachoverflow): eliminate this call
+    transmit_command((BT_HDR *)data, NULL, NULL, NULL);
+    LOG_WARN(LOG_TAG, "%s legacy transmit of command. Use transmit_command instead.", __func__);
+  } else {
+    fixed_queue_enqueue(packet_queue, data);
+  }
+}
+
+// Start up functions
+
+static void event_finish_startup(UNUSED_ATTR void *context) {
+  LOG_INFO(LOG_TAG, "%s", __func__);
+  hal->open();
+  vendor->send_async_command(VENDOR_CONFIGURE_FIRMWARE, NULL);
+}
+
+static void firmware_config_callback(UNUSED_ATTR bool success) {
+  LOG_INFO(LOG_TAG, "%s", __func__);
+
+  alarm_cancel(startup_timer);
+
+  pthread_mutex_lock(&commands_pending_response_lock);
+
+  if (startup_future == NULL) {
+    // The firmware configuration took too long - ignore the callback
+    pthread_mutex_unlock(&commands_pending_response_lock);
+    return;
+  }
+
+  firmware_is_configured = true;
+  future_ready(startup_future, FUTURE_SUCCESS);
+  startup_future = NULL;
+
+  pthread_mutex_unlock(&commands_pending_response_lock);
+}
+
+static void startup_timer_expired(UNUSED_ATTR void *context) {
+  LOG_ERROR(LOG_TAG, "%s", __func__);
+
+  pthread_mutex_lock(&commands_pending_response_lock);
+  future_ready(startup_future, FUTURE_FAIL);
+  startup_future = NULL;
+  pthread_mutex_unlock(&commands_pending_response_lock);
+}
+
+// Postload functions
+
+static void event_postload(UNUSED_ATTR void *context) {
+  LOG_INFO(LOG_TAG, "%s", __func__);
+  if(vendor->send_async_command(VENDOR_CONFIGURE_SCO, NULL) == -1) {
+    // If couldn't configure sco, we won't get the sco configuration callback
+    // so go pretend to do it now
+    sco_config_callback(false);
+
+  }
+}
+
+static void sco_config_callback(UNUSED_ATTR bool success) {
+  LOG_INFO(LOG_TAG, "%s postload finished.", __func__);
+}
+
+// Epilog functions
+
+static void event_epilog(UNUSED_ATTR void *context) {
+  vendor->send_async_command(VENDOR_DO_EPILOG, NULL);
+}
+
+static void epilog_finished_callback(UNUSED_ATTR bool success) {
+  LOG_INFO(LOG_TAG, "%s", __func__);
+  alarm_cancel(epilog_timer);
+  thread_stop(thread);
+}
+
+static void epilog_timer_expired(UNUSED_ATTR void *context) {
+  LOG_INFO(LOG_TAG, "%s", __func__);
+  thread_stop(thread);
+}
+
+// Command/packet transmitting functions
+
+static void event_command_ready(fixed_queue_t *queue, UNUSED_ATTR void *context) {
+  if (command_credits > 0) {
+    waiting_command_t *wait_entry = fixed_queue_dequeue(queue);
+    command_credits--;
+
+    // Move it to the list of commands awaiting response
+    pthread_mutex_lock(&commands_pending_response_lock);
+    list_append(commands_pending_response, wait_entry);
+    pthread_mutex_unlock(&commands_pending_response_lock);
+
+    // Send it off
+    low_power_manager->wake_assert();
+    packet_fragmenter->fragment_and_dispatch(wait_entry->command);
+    low_power_manager->transmit_done();
+
+    update_command_response_timer();
+  }
+}
+
+static void event_packet_ready(fixed_queue_t *queue, UNUSED_ATTR void *context) {
+  // The queue may be the command queue or the packet queue, we don't care
+  BT_HDR *packet = (BT_HDR *)fixed_queue_dequeue(queue);
+
+  low_power_manager->wake_assert();
+  packet_fragmenter->fragment_and_dispatch(packet);
+  low_power_manager->transmit_done();
+}
+
+// Callback for the fragmenter to send a fragment
+static void transmit_fragment(BT_HDR *packet, bool send_transmit_finished) {
+  uint16_t event = packet->event & MSG_EVT_MASK;
+  serial_data_type_t type = event_to_data_type(event);
+#ifdef BLUETOOTH_RTK_COEX
+  uint8_t *pp = ((uint8_t *)(packet + 1)) + packet->offset;
+  if (event == MSG_STACK_TO_HC_HCI_ACL)
+    rtk_parse_manager->rtk_parse_l2cap_data(pp,1);
+  if (event == MSG_STACK_TO_HC_HCI_CMD)
+    rtk_parse_manager->rtk_parse_command(pp);
+#endif
+
+
+  btsnoop->capture(packet, false);
+  hal->transmit_data(type, packet->data + packet->offset, packet->len);
+
+  if (event != MSG_STACK_TO_HC_HCI_CMD && send_transmit_finished)
+    buffer_allocator->free(packet);
+}
+
+static void fragmenter_transmit_finished(BT_HDR *packet, bool all_fragments_sent) {
+  if (all_fragments_sent) {
+    buffer_allocator->free(packet);
+  } else {
+    // This is kind of a weird case, since we're dispatching a partially sent packet
+    // up to a higher layer.
+    // TODO(zachoverflow): rework upper layer so this isn't necessary.
+    data_dispatcher_dispatch(interface.event_dispatcher, packet->event & MSG_EVT_MASK, packet);
+  }
+}
+
+static void command_timed_out(UNUSED_ATTR void *context) {
+  pthread_mutex_lock(&commands_pending_response_lock);
+
+  if (list_is_empty(commands_pending_response)) {
+    LOG_ERROR(LOG_TAG, "%s with no commands pending response", __func__);
+  } else {
+    waiting_command_t *wait_entry = list_front(commands_pending_response);
+    pthread_mutex_unlock(&commands_pending_response_lock);
+
+    // We shouldn't try to recover the stack from this command timeout.
+    // If it's caused by a software bug, fix it. If it's a hardware bug, fix it.
+    LOG_ERROR(LOG_TAG, "%s hci layer timeout waiting for response to a command. opcode: 0x%x", __func__, wait_entry->opcode);
+  }
+
+  LOG_ERROR(LOG_TAG, "%s restarting the bluetooth process.", __func__);
+  usleep(10000);
+  kill(getpid(), SIGKILL);
+}
+
+// Event/packet receiving functions
+
+// This function is not required to read all of a packet in one go, so
+// be wary of reentry. But this function must return after finishing a packet.
+static void hal_says_data_ready(serial_data_type_t type) {
+  packet_receive_data_t *incoming = &incoming_packets[PACKET_TYPE_TO_INBOUND_INDEX(type)];
+
+  uint8_t byte;
+  while (hal->read_data(type, &byte, 1) != 0) {
+    switch (incoming->state) {
+      case BRAND_NEW:
+        // Initialize and prepare to jump to the preamble reading state
+        incoming->bytes_remaining = preamble_sizes[PACKET_TYPE_TO_INDEX(type)];
+        memset(incoming->preamble, 0, PREAMBLE_BUFFER_SIZE);
+        incoming->index = 0;
+        incoming->state = PREAMBLE;
+        // INTENTIONAL FALLTHROUGH
+      case PREAMBLE:
+        incoming->preamble[incoming->index] = byte;
+        incoming->index++;
+        incoming->bytes_remaining--;
+
+        if (incoming->bytes_remaining == 0) {
+          // For event and sco preambles, the last byte we read is the length
+          incoming->bytes_remaining = (type == DATA_TYPE_ACL) ? RETRIEVE_ACL_LENGTH(incoming->preamble) : byte;
+
+          size_t buffer_size = BT_HDR_SIZE + incoming->index + incoming->bytes_remaining;
+          incoming->buffer = (BT_HDR *)buffer_allocator->alloc(buffer_size);
+
+          if (!incoming->buffer) {
+            LOG_ERROR(LOG_TAG, "%s error getting buffer for incoming packet of type %d and size %zd", __func__, type, buffer_size);
+            // Can't read any more of this current packet, so jump out
+            incoming->state = incoming->bytes_remaining == 0 ? BRAND_NEW : IGNORE;
+            break;
+          }
+
+          // Initialize the buffer
+          incoming->buffer->offset = 0;
+          incoming->buffer->layer_specific = 0;
+          incoming->buffer->event = outbound_event_types[PACKET_TYPE_TO_INDEX(type)];
+          memcpy(incoming->buffer->data, incoming->preamble, incoming->index);
+
+          incoming->state = incoming->bytes_remaining > 0 ? BODY : FINISHED;
+        }
+
+        break;
+      case BODY:
+        incoming->buffer->data[incoming->index] = byte;
+        incoming->index++;
+        incoming->bytes_remaining--;
+
+        size_t bytes_read = hal->read_data(type, (incoming->buffer->data + incoming->index), incoming->bytes_remaining);
+        incoming->index += bytes_read;
+        incoming->bytes_remaining -= bytes_read;
+
+        incoming->state = incoming->bytes_remaining == 0 ? FINISHED : incoming->state;
+        break;
+      case IGNORE:
+        incoming->bytes_remaining--;
+        if (incoming->bytes_remaining == 0) {
+          incoming->state = BRAND_NEW;
+          // Don't forget to let the hal know we finished the packet we were ignoring.
+          // Otherwise we'll get out of sync with hals that embed extra information
+          // in the uart stream (like H4). #badnewsbears
+          hal->packet_finished(type);
+          return;
+        }
+
+        break;
+      case FINISHED:
+        LOG_ERROR(LOG_TAG, "%s the state machine should not have been left in the finished state.", __func__);
+        break;
+    }
+
+    if (incoming->state == FINISHED) {
+      incoming->buffer->len = incoming->index;
+      btsnoop->capture(incoming->buffer, true);
+
+      if (type != DATA_TYPE_EVENT) {
+        packet_fragmenter->reassemble_and_dispatch(incoming->buffer);
+      } else if (!filter_incoming_event(incoming->buffer)) {
+        // Dispatch the event by event code
+        uint8_t *stream = incoming->buffer->data;
+        uint8_t event_code;
+        STREAM_TO_UINT8(event_code, stream);
+
+        data_dispatcher_dispatch(
+          interface.event_dispatcher,
+          event_code,
+          incoming->buffer
+        );
+      }
+
+      // We don't control the buffer anymore
+      incoming->buffer = NULL;
+      incoming->state = BRAND_NEW;
+      hal->packet_finished(type);
+
+      // We return after a packet is finished for two reasons:
+      // 1. The type of the next packet could be different.
+      // 2. We don't want to hog cpu time.
+      return;
+    }
+  }
+}
+
+// Returns true if the event was intercepted and should not proceed to
+// higher layers. Also inspects an incoming event for interesting
+// information, like how many commands are now able to be sent.
+static bool filter_incoming_event(BT_HDR *packet) {
+  waiting_command_t *wait_entry = NULL;
+  uint8_t *stream = packet->data;
+  uint8_t event_code;
+  command_opcode_t opcode;
+
+  STREAM_TO_UINT8(event_code, stream);
+  STREAM_SKIP_UINT8(stream); // Skip the parameter total length field
+
+#ifdef BLUETOOTH_RTK_COEX
+    rtk_parse_manager->rtk_parse_internal_event_intercept(packet->data);
+#endif
+  if (event_code == HCI_COMMAND_COMPLETE_EVT) {
+    STREAM_TO_UINT8(command_credits, stream);
+#ifdef BLUETOOTH_RTK
+    if(command_credits > 0)
+        command_credits = 1;
+#endif
+    STREAM_TO_UINT16(opcode, stream);
+
+    wait_entry = get_waiting_command(opcode);
+    if (!wait_entry) {
+      // TODO: Currently command_credits aren't parsed at all; here or in higher layers...
+      if (opcode != HCI_COMMAND_NONE) {
+        LOG_WARN(LOG_TAG, "%s command complete event with no matching command (opcode: 0x%04x).",
+            __func__, opcode);
+      }
+    } else if (wait_entry->complete_callback) {
+      wait_entry->complete_callback(packet, wait_entry->context);
+    } else if (wait_entry->complete_future) {
+      future_ready(wait_entry->complete_future, packet);
+    }
+
+    goto intercepted;
+  } else if (event_code == HCI_COMMAND_STATUS_EVT) {
+    uint8_t status;
+    STREAM_TO_UINT8(status, stream);
+    STREAM_TO_UINT8(command_credits, stream);
+#ifdef BLUETOOTH_RTK
+    if(command_credits > 0)
+        command_credits = 1;
+#endif
+    STREAM_TO_UINT16(opcode, stream);
+
+    // If a command generates a command status event, it won't be getting a command complete event
+
+    wait_entry = get_waiting_command(opcode);
+    if (!wait_entry)
+      LOG_WARN(LOG_TAG, "%s command status event with no matching command. opcode: 0x%x", __func__, opcode);
+    else if (wait_entry->status_callback)
+      wait_entry->status_callback(status, wait_entry->command, wait_entry->context);
+
+    goto intercepted;
+  }
+
+  return false;
+
+intercepted:
+  update_command_response_timer();
+
+  if (wait_entry) {
+    // If it has a callback, it's responsible for freeing the packet
+    if (event_code == HCI_COMMAND_STATUS_EVT || (!wait_entry->complete_callback && !wait_entry->complete_future))
+      buffer_allocator->free(packet);
+
+    // If it has a callback, it's responsible for freeing the command
+    if (event_code == HCI_COMMAND_COMPLETE_EVT || !wait_entry->status_callback)
+      buffer_allocator->free(wait_entry->command);
+
+    osi_free(wait_entry);
+  } else {
+    buffer_allocator->free(packet);
+  }
+
+  return true;
+}
+
+// Callback for the fragmenter to dispatch up a completely reassembled packet
+static void dispatch_reassembled(BT_HDR *packet) {
+  // Events should already have been dispatched before this point
+  assert((packet->event & MSG_EVT_MASK) != MSG_HC_TO_STACK_HCI_EVT);
+  assert(upwards_data_queue != NULL);
+#ifdef BLUETOOTH_RTK_COEX
+    if ((packet->event& MSG_EVT_MASK) == MSG_HC_TO_STACK_HCI_ACL) {
+      uint8_t *pp = ((uint8_t *)(packet + 1)) + packet->offset;
+      rtk_parse_manager->rtk_parse_l2cap_data(pp,0);
+    }
+#endif
+
+  if (upwards_data_queue) {
+    fixed_queue_enqueue(upwards_data_queue, packet);
+  } else {
+    LOG_ERROR(LOG_TAG, "%s had no queue to place upwards data packet in. Dropping it on the floor.", __func__);
+    buffer_allocator->free(packet);
+  }
+}
+
+// Misc internal functions
+
+// TODO(zachoverflow): we seem to do this a couple places, like the HCI inject module. #centralize
+static serial_data_type_t event_to_data_type(uint16_t event) {
+  if (event == MSG_STACK_TO_HC_HCI_ACL)
+    return DATA_TYPE_ACL;
+  else if (event == MSG_STACK_TO_HC_HCI_SCO)
+    return DATA_TYPE_SCO;
+  else if (event == MSG_STACK_TO_HC_HCI_CMD)
+    return DATA_TYPE_COMMAND;
+  else
+    LOG_ERROR(LOG_TAG, "%s invalid event type, could not translate 0x%x", __func__, event);
+
+  return 0;
+}
+
+static waiting_command_t *get_waiting_command(command_opcode_t opcode) {
+  pthread_mutex_lock(&commands_pending_response_lock);
+
+  for (const list_node_t *node = list_begin(commands_pending_response);
+      node != list_end(commands_pending_response);
+      node = list_next(node)) {
+    waiting_command_t *wait_entry = list_node(node);
+
+    if (!wait_entry || wait_entry->opcode != opcode)
+      continue;
+
+    list_remove(commands_pending_response, wait_entry);
+
+    pthread_mutex_unlock(&commands_pending_response_lock);
+    return wait_entry;
+  }
+
+  pthread_mutex_unlock(&commands_pending_response_lock);
+  return NULL;
+}
+
+static void update_command_response_timer(void) {
+  if (list_is_empty(commands_pending_response)) {
+    alarm_cancel(command_response_timer);
+  } else {
+    alarm_set(command_response_timer, COMMAND_PENDING_TIMEOUT_MS,
+              command_timed_out, NULL);
+  }
+}
+
+static void init_layer_interface() {
+  if (!interface_created) {
+    interface.send_low_power_command = low_power_manager->post_command;
+    interface.do_postload = do_postload;
+
+    // It's probably ok for this to live forever. It's small and
+    // there's only one instance of the hci interface.
+    interface.event_dispatcher = data_dispatcher_new("hci_layer");
+    if (!interface.event_dispatcher) {
+      LOG_ERROR(LOG_TAG, "%s could not create upward dispatcher.", __func__);
+      return;
+    }
+
+    interface.set_data_queue = set_data_queue;
+    interface.transmit_command = transmit_command;
+    interface.transmit_command_futured = transmit_command_futured;
+    interface.transmit_downward = transmit_downward;
+    interface_created = true;
+  }
+}
+
+void hci_layer_cleanup_interface() {
+  if (interface_created) {
+    interface.send_low_power_command = NULL;
+    interface.do_postload = NULL;
+
+    data_dispatcher_free(interface.event_dispatcher);
+    interface.event_dispatcher = NULL;
+
+    interface.set_data_queue = NULL;
+    interface.transmit_command = NULL;
+    interface.transmit_command_futured = NULL;
+    interface.transmit_downward = NULL;
+    interface_created = false;
+  }
+}
+
+static const hci_hal_callbacks_t hal_callbacks = {
+  hal_says_data_ready
+};
+
+static const packet_fragmenter_callbacks_t packet_fragmenter_callbacks = {
+  transmit_fragment,
+  dispatch_reassembled,
+  fragmenter_transmit_finished
+};
+
+const hci_t *hci_layer_get_interface() {
+  buffer_allocator = buffer_allocator_get_interface();
+  hal = hci_hal_get_interface();
+  btsnoop = btsnoop_get_interface();
+  hci_inject = hci_inject_get_interface();
+  packet_fragmenter = packet_fragmenter_get_interface();
+  vendor = vendor_get_interface();
+  low_power_manager = low_power_manager_get_interface();
+
+#ifdef BLUETOOTH_RTK_COEX
+  rtk_parse_manager = rtk_parse_manager_get_interface();
+#endif
+  init_layer_interface();
+  return &interface;
+}
+
+const hci_t *hci_layer_get_test_interface(
+    const allocator_t *buffer_allocator_interface,
+    const hci_hal_t *hal_interface,
+    const btsnoop_t *btsnoop_interface,
+    const hci_inject_t *hci_inject_interface,
+    const packet_fragmenter_t *packet_fragmenter_interface,
+    const vendor_t *vendor_interface,
+    const low_power_manager_t *low_power_manager_interface) {
+
+  buffer_allocator = buffer_allocator_interface;
+  hal = hal_interface;
+  btsnoop = btsnoop_interface;
+  hci_inject = hci_inject_interface;
+  packet_fragmenter = packet_fragmenter_interface;
+  vendor = vendor_interface;
+  low_power_manager = low_power_manager_interface;
+
+  init_layer_interface();
+  return &interface;
+}
diff --git a/rtkbt/code/bt/hci/src/hci_packet_factory.c b/rtkbt/code/bt/hci/src/hci_packet_factory.c
new file mode 100755
index 0000000..96f578a
--- /dev/null
+++ b/rtkbt/code/bt/hci/src/hci_packet_factory.c
@@ -0,0 +1,207 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#include <assert.h>
+
+#include "osi/include/allocator.h"
+#include "bt_types.h"
+#include "buffer_allocator.h"
+#include "hcidefs.h"
+#include "hcimsgs.h"
+#include "hci_internals.h"
+#include "hci_layer.h"
+#include "hci_packet_factory.h"
+
+static const allocator_t *buffer_allocator;
+
+static BT_HDR *make_packet(size_t data_size);
+static BT_HDR *make_command_no_params(uint16_t opcode);
+static BT_HDR *make_command(uint16_t opcode, size_t parameter_size, uint8_t **stream_out);
+
+// Interface functions
+
+static BT_HDR *make_reset(void) {
+  return make_command_no_params(HCI_RESET);
+}
+
+static BT_HDR *make_read_buffer_size(void) {
+  return make_command_no_params(HCI_READ_BUFFER_SIZE);
+}
+
+static BT_HDR *make_host_buffer_size(uint16_t acl_size, uint8_t sco_size, uint16_t acl_count, uint16_t sco_count) {
+  uint8_t *stream;
+  const uint8_t parameter_size = 2 + 1 + 2 + 2; // from each of the parameters
+  BT_HDR *packet = make_command(HCI_HOST_BUFFER_SIZE, parameter_size, &stream);
+
+  UINT16_TO_STREAM(stream, acl_size);
+  UINT8_TO_STREAM(stream, sco_size);
+  UINT16_TO_STREAM(stream, acl_count);
+  UINT16_TO_STREAM(stream, sco_count);
+  return packet;
+}
+
+static BT_HDR *make_read_local_version_info(void) {
+  return make_command_no_params(HCI_READ_LOCAL_VERSION_INFO);
+}
+
+static BT_HDR *make_read_bd_addr(void) {
+  return make_command_no_params(HCI_READ_BD_ADDR);
+}
+
+static BT_HDR *make_read_local_supported_commands(void) {
+  return make_command_no_params(HCI_READ_LOCAL_SUPPORTED_CMDS);
+}
+
+static BT_HDR *make_read_local_extended_features(uint8_t page_number) {
+  uint8_t *stream;
+  const uint8_t parameter_size = 1;
+  BT_HDR *packet = make_command(HCI_READ_LOCAL_EXT_FEATURES, parameter_size, &stream);
+
+  UINT8_TO_STREAM(stream, page_number);
+  return packet;
+}
+
+static BT_HDR *make_write_simple_pairing_mode(uint8_t mode) {
+  uint8_t *stream;
+  const uint8_t parameter_size = 1;
+  BT_HDR *packet = make_command(HCI_WRITE_SIMPLE_PAIRING_MODE, parameter_size, &stream);
+
+  UINT8_TO_STREAM(stream, mode);
+  return packet;
+}
+
+static BT_HDR *make_write_secure_connections_host_support(uint8_t mode) {
+  uint8_t *stream;
+  const uint8_t parameter_size = 1;
+  BT_HDR *packet = make_command(HCI_WRITE_SECURE_CONNS_SUPPORT, parameter_size, &stream);
+
+  UINT8_TO_STREAM(stream, mode);
+  return packet;
+}
+
+static BT_HDR *make_set_event_mask(const bt_event_mask_t *event_mask) {
+  uint8_t *stream;
+  uint8_t parameter_size = sizeof(bt_event_mask_t);
+  BT_HDR *packet = make_command(HCI_SET_EVENT_MASK, parameter_size, &stream);
+
+  ARRAY8_TO_STREAM(stream, event_mask->as_array);
+  return packet;
+}
+
+static BT_HDR *make_ble_write_host_support(uint8_t supported_host, uint8_t simultaneous_host) {
+  uint8_t *stream;
+  const uint8_t parameter_size = 1 + 1;
+  BT_HDR *packet = make_command(HCI_WRITE_LE_HOST_SUPPORT, parameter_size, &stream);
+
+  UINT8_TO_STREAM(stream, supported_host);
+  UINT8_TO_STREAM(stream, simultaneous_host);
+  return packet;
+}
+
+static BT_HDR *make_ble_read_white_list_size(void) {
+  return make_command_no_params(HCI_BLE_READ_WHITE_LIST_SIZE);
+}
+
+static BT_HDR *make_ble_read_buffer_size(void) {
+  return make_command_no_params(HCI_BLE_READ_BUFFER_SIZE);
+}
+
+static BT_HDR *make_ble_read_supported_states(void) {
+  return make_command_no_params(HCI_BLE_READ_SUPPORTED_STATES);
+}
+
+static BT_HDR *make_ble_read_local_supported_features(void) {
+  return make_command_no_params(HCI_BLE_READ_LOCAL_SPT_FEAT);
+}
+
+static BT_HDR *make_ble_read_resolving_list_size(void) {
+  return make_command_no_params(HCI_BLE_READ_RESOLVING_LIST_SIZE);
+}
+
+static BT_HDR *make_ble_read_suggested_default_data_length(void) {
+    return make_command_no_params(HCI_BLE_READ_DEFAULT_DATA_LENGTH);
+}
+
+static BT_HDR *make_read_local_supported_codecs(void) {
+    return make_command_no_params(HCI_READ_LOCAL_SUPPORTED_CODECS);
+}
+
+static BT_HDR *make_ble_set_event_mask(const bt_event_mask_t *event_mask) {
+  uint8_t *stream;
+  uint8_t parameter_size = sizeof(bt_event_mask_t);
+  BT_HDR *packet = make_command(HCI_BLE_SET_EVENT_MASK, parameter_size, &stream);
+
+  ARRAY8_TO_STREAM(stream, event_mask->as_array);
+  return packet;
+}
+
+// Internal functions
+
+static BT_HDR *make_command_no_params(uint16_t opcode) {
+  return make_command(opcode, 0, NULL);
+}
+
+static BT_HDR *make_command(uint16_t opcode, size_t parameter_size, uint8_t **stream_out) {
+  BT_HDR *packet = make_packet(HCI_COMMAND_PREAMBLE_SIZE + parameter_size);
+
+  uint8_t *stream = packet->data;
+  UINT16_TO_STREAM(stream, opcode);
+  UINT8_TO_STREAM(stream, parameter_size);
+
+  if (stream_out != NULL)
+    *stream_out = stream;
+
+  return packet;
+}
+
+static BT_HDR *make_packet(size_t data_size) {
+  BT_HDR *ret = (BT_HDR *)buffer_allocator->alloc(sizeof(BT_HDR) + data_size);
+  assert(ret);
+  ret->event = 0;
+  ret->offset = 0;
+  ret->layer_specific = 0;
+  ret->len = data_size;
+  return ret;
+}
+
+static const hci_packet_factory_t interface = {
+  make_reset,
+  make_read_buffer_size,
+  make_host_buffer_size,
+  make_read_local_version_info,
+  make_read_bd_addr,
+  make_read_local_supported_commands,
+  make_read_local_extended_features,
+  make_write_simple_pairing_mode,
+  make_write_secure_connections_host_support,
+  make_set_event_mask,
+  make_ble_write_host_support,
+  make_ble_read_white_list_size,
+  make_ble_read_buffer_size,
+  make_ble_read_supported_states,
+  make_ble_read_local_supported_features,
+  make_ble_read_resolving_list_size,
+  make_ble_read_suggested_default_data_length,
+  make_ble_set_event_mask,
+  make_read_local_supported_codecs
+};
+
+const hci_packet_factory_t *hci_packet_factory_get_interface() {
+  buffer_allocator = buffer_allocator_get_interface();
+  return &interface;
+}
diff --git a/rtkbt/code/bt/hci/src/hci_packet_parser.c b/rtkbt/code/bt/hci/src/hci_packet_parser.c
new file mode 100755
index 0000000..9f7dae8
--- /dev/null
+++ b/rtkbt/code/bt/hci/src/hci_packet_parser.c
@@ -0,0 +1,271 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_hci"
+
+#include "hci_packet_parser.h"
+
+#include <assert.h>
+
+#include "buffer_allocator.h"
+#include "hci_layer.h"
+#include "hcimsgs.h"
+#include "osi/include/log.h"
+
+static const command_opcode_t NO_OPCODE_CHECKING = 0;
+
+static const allocator_t *buffer_allocator;
+
+static uint8_t *read_command_complete_header(
+  BT_HDR *response,
+  command_opcode_t expected_opcode,
+  size_t minimum_bytes_after);
+
+static void parse_generic_command_complete(BT_HDR *response) {
+  read_command_complete_header(response, NO_OPCODE_CHECKING, 0 /* bytes after */);
+
+  buffer_allocator->free(response);
+}
+
+static void parse_read_buffer_size_response(
+    BT_HDR *response,
+    uint16_t *data_size_ptr,
+    uint16_t *acl_buffer_count_ptr) {
+
+  uint8_t *stream = read_command_complete_header(response, HCI_READ_BUFFER_SIZE, 5 /* bytes after */);
+  assert(stream != NULL);
+  STREAM_TO_UINT16(*data_size_ptr, stream);
+  STREAM_SKIP_UINT8(stream); // skip the sco packet length
+  STREAM_TO_UINT16(*acl_buffer_count_ptr, stream);
+
+  buffer_allocator->free(response);
+}
+
+static void parse_read_local_version_info_response(
+    BT_HDR *response,
+    bt_version_t *bt_version) {
+
+  uint8_t *stream = read_command_complete_header(response, HCI_READ_LOCAL_VERSION_INFO, 8 /* bytes after */);
+  assert(stream != NULL);
+  STREAM_TO_UINT8(bt_version->hci_version, stream);
+  STREAM_TO_UINT16(bt_version->hci_revision, stream);
+  STREAM_TO_UINT8(bt_version->lmp_version, stream);
+  STREAM_TO_UINT16(bt_version->manufacturer, stream);
+  STREAM_TO_UINT16(bt_version->lmp_subversion, stream);
+
+  buffer_allocator->free(response);
+}
+
+static void parse_read_local_supported_codecs_response(
+    BT_HDR *response,
+    uint8_t *number_of_local_supported_codecs, uint8_t *local_supported_codecs) {
+
+  uint8_t *stream = read_command_complete_header(response, HCI_READ_LOCAL_SUPPORTED_CODECS, 0 /* bytes after */);
+  if(stream) {
+    STREAM_TO_UINT8(*number_of_local_supported_codecs, stream);
+    for ( uint8_t i = 0; i < *number_of_local_supported_codecs; i++)
+    {
+      STREAM_TO_UINT8(*local_supported_codecs, stream);
+      local_supported_codecs++;
+    }
+  }
+
+  buffer_allocator->free(response);
+}
+
+static void parse_read_bd_addr_response(
+    BT_HDR *response,
+    bt_bdaddr_t *address_ptr) {
+
+  uint8_t *stream = read_command_complete_header(response, HCI_READ_BD_ADDR, sizeof(bt_bdaddr_t) /* bytes after */);
+  assert(stream != NULL);
+  STREAM_TO_BDADDR(address_ptr->address, stream);
+
+  buffer_allocator->free(response);
+}
+
+static void parse_read_local_supported_commands_response(
+    BT_HDR *response,
+    uint8_t *supported_commands_ptr,
+    size_t supported_commands_length) {
+
+  uint8_t *stream = read_command_complete_header(response, HCI_READ_LOCAL_SUPPORTED_CMDS, supported_commands_length /* bytes after */);
+  assert(stream != NULL);
+  STREAM_TO_ARRAY(supported_commands_ptr, stream, (int)supported_commands_length);
+
+  buffer_allocator->free(response);
+}
+
+static void parse_read_local_extended_features_response(
+    BT_HDR *response,
+    uint8_t *page_number_ptr,
+    uint8_t *max_page_number_ptr,
+    bt_device_features_t *feature_pages,
+    size_t feature_pages_count) {
+
+  uint8_t *stream = read_command_complete_header(response, HCI_READ_LOCAL_EXT_FEATURES, 2 + sizeof(bt_device_features_t) /* bytes after */);
+  if (stream != NULL) {
+    STREAM_TO_UINT8(*page_number_ptr, stream);
+    STREAM_TO_UINT8(*max_page_number_ptr, stream);
+
+    assert(*page_number_ptr < feature_pages_count);
+    STREAM_TO_ARRAY(feature_pages[*page_number_ptr].as_array, stream, (int)sizeof(bt_device_features_t));
+  } else {
+    LOG_ERROR(LOG_TAG, "%s() - WARNING: READING EXTENDED FEATURES FAILED. "
+                "THIS MAY INDICATE A FIRMWARE/CONTROLLER ISSUE.", __func__);
+  }
+
+  buffer_allocator->free(response);
+}
+
+static void parse_ble_read_white_list_size_response(
+    BT_HDR *response,
+    uint8_t *white_list_size_ptr) {
+
+  uint8_t *stream = read_command_complete_header(response, HCI_BLE_READ_WHITE_LIST_SIZE, 1 /* byte after */);
+  assert(stream != NULL);
+  STREAM_TO_UINT8(*white_list_size_ptr, stream);
+
+  buffer_allocator->free(response);
+}
+
+static void parse_ble_read_buffer_size_response(
+    BT_HDR *response,
+    uint16_t *data_size_ptr,
+    uint8_t *acl_buffer_count_ptr) {
+
+  uint8_t *stream = read_command_complete_header(response, HCI_BLE_READ_BUFFER_SIZE, 3 /* bytes after */);
+  assert(stream != NULL);
+  STREAM_TO_UINT16(*data_size_ptr, stream);
+  STREAM_TO_UINT8(*acl_buffer_count_ptr, stream);
+
+  buffer_allocator->free(response);
+}
+
+static void parse_ble_read_supported_states_response(
+    BT_HDR *response,
+    uint8_t *supported_states,
+    size_t supported_states_size) {
+
+  uint8_t *stream = read_command_complete_header(response, HCI_BLE_READ_SUPPORTED_STATES, supported_states_size /* bytes after */);
+  assert(stream != NULL);
+  STREAM_TO_ARRAY(supported_states, stream, (int)supported_states_size);
+
+  buffer_allocator->free(response);
+}
+
+static void parse_ble_read_local_supported_features_response(
+    BT_HDR *response,
+    bt_device_features_t *supported_features) {
+
+  uint8_t *stream = read_command_complete_header(response, HCI_BLE_READ_LOCAL_SPT_FEAT, sizeof(bt_device_features_t) /* bytes after */);
+  assert(stream != NULL);
+  STREAM_TO_ARRAY(supported_features->as_array, stream, (int)sizeof(bt_device_features_t));
+
+  buffer_allocator->free(response);
+}
+
+static void parse_ble_read_resolving_list_size_response(
+    BT_HDR *response,
+    uint8_t *resolving_list_size_ptr) {
+
+  uint8_t *stream = read_command_complete_header(response, HCI_BLE_READ_RESOLVING_LIST_SIZE, 1 /* bytes after */);
+  STREAM_TO_UINT8(*resolving_list_size_ptr, stream);
+
+  buffer_allocator->free(response);
+}
+
+static void parse_ble_read_suggested_default_data_length_response(
+    BT_HDR *response,
+    uint16_t *ble_default_packet_length_ptr) {
+
+  uint8_t *stream = read_command_complete_header(response, HCI_BLE_READ_DEFAULT_DATA_LENGTH, 2 /* bytes after */);
+  STREAM_TO_UINT8(*ble_default_packet_length_ptr, stream);
+
+  buffer_allocator->free(response);
+}
+
+// Internal functions
+
+static uint8_t *read_command_complete_header(
+    BT_HDR *response,
+    command_opcode_t expected_opcode,
+    size_t minimum_bytes_after) {
+
+  uint8_t *stream = response->data + response->offset;
+
+  // Read the event header
+  uint8_t event_code;
+  uint8_t parameter_length;
+  STREAM_TO_UINT8(event_code, stream);
+  STREAM_TO_UINT8(parameter_length, stream);
+
+  const size_t parameter_bytes_we_read_here = 4;
+
+  // Check the event header values against what we expect
+  assert(event_code == HCI_COMMAND_COMPLETE_EVT);
+  assert(parameter_length >= (parameter_bytes_we_read_here + minimum_bytes_after));
+
+  // Read the command complete header
+  command_opcode_t opcode;
+  uint8_t status;
+  STREAM_SKIP_UINT8(stream); // skip the number of hci command packets field
+  STREAM_TO_UINT16(opcode, stream);
+
+  // Check the command complete header values against what we expect
+  if (expected_opcode != NO_OPCODE_CHECKING) {
+    assert(opcode == expected_opcode);
+  }
+
+  // Assume the next field is the status field
+  STREAM_TO_UINT8(status, stream);
+
+  if (status != HCI_SUCCESS){
+    LOG_ERROR(LOG_TAG, "%s: return status - 0x%x", __func__, status);
+    return NULL;
+  }
+
+  return stream;
+}
+
+static const hci_packet_parser_t interface = {
+  parse_generic_command_complete,
+  parse_read_buffer_size_response,
+  parse_read_local_version_info_response,
+  parse_read_bd_addr_response,
+  parse_read_local_supported_commands_response,
+  parse_read_local_extended_features_response,
+  parse_ble_read_white_list_size_response,
+  parse_ble_read_buffer_size_response,
+  parse_ble_read_supported_states_response,
+  parse_ble_read_local_supported_features_response,
+  parse_ble_read_resolving_list_size_response,
+  parse_ble_read_suggested_default_data_length_response,
+  parse_read_local_supported_codecs_response
+};
+
+const hci_packet_parser_t *hci_packet_parser_get_interface() {
+  buffer_allocator = buffer_allocator_get_interface();
+  return &interface;
+}
+
+const hci_packet_parser_t *hci_packet_parser_get_test_interface(
+    allocator_t *buffer_allocator_interface) {
+  buffer_allocator = buffer_allocator_interface;
+  return &interface;
+}
diff --git a/rtkbt/code/bt/hci/src/low_power_manager.c b/rtkbt/code/bt/hci/src/low_power_manager.c
new file mode 100755
index 0000000..f82a69f
--- /dev/null
+++ b/rtkbt/code/bt/hci/src/low_power_manager.c
@@ -0,0 +1,249 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_low_power_manager"
+
+#include "low_power_manager.h"
+
+#include <assert.h>
+#include <stdint.h>
+
+#include "osi/include/alarm.h"
+#include "osi/include/log.h"
+#include "osi/include/osi.h"
+#include "osi/include/thread.h"
+#include "vendor.h"
+
+typedef enum {
+  LPM_DISABLED = 0,
+  LPM_ENABLED,
+  LPM_ENABLING,
+  LPM_DISABLING
+} low_power_mode_state_t;
+
+typedef enum {
+  LPM_WAKE_DEASSERTED = 0,
+  LPM_WAKE_W4_TX_DONE,
+  LPM_WAKE_W4_TIMEOUT,
+  LPM_WAKE_ASSERTED,
+} wake_state_t;
+
+// Our interface and modules we import
+static const low_power_manager_t interface;
+static const vendor_t *vendor;
+
+static void vendor_enable_disable_callback(bool success);
+
+static void event_disable(void *context);
+static void event_enable(void *context);
+static void event_wake_assert(void *context);
+static void event_allow_device_sleep(void *context);
+static void event_idle_timeout(void *context);
+
+static void reset_state();
+static void start_idle_timer();
+static void stop_idle_timer();
+
+static thread_fn event_functions[] = {
+  event_disable,
+  event_enable,
+  event_wake_assert,
+  event_allow_device_sleep
+};
+
+static thread_t *thread;
+static low_power_mode_state_t state;
+static wake_state_t wake_state;
+static uint32_t idle_timeout_ms;
+static alarm_t *idle_alarm;
+static bool transmit_is_done;
+static void wake_deassert();
+
+// Interface functions
+
+static void init(thread_t *post_thread) {
+  assert(post_thread != NULL);
+  thread = post_thread;
+
+  vendor->set_callback(VENDOR_SET_LPM_MODE, vendor_enable_disable_callback);
+
+  idle_alarm = alarm_new("hci.idle");
+  if (!idle_alarm) {
+    LOG_ERROR(LOG_TAG, "%s could not create idle alarm.", __func__);
+  }
+
+  reset_state();
+}
+
+static void cleanup() {
+  reset_state();
+  alarm_free(idle_alarm);
+  idle_alarm = NULL;
+}
+
+static void post_command(low_power_command_t command) {
+  if (command > LPM_WAKE_DEASSERT) {
+    LOG_ERROR(LOG_TAG, "%s unknown low power command %d", __func__, command);
+    return;
+  }
+
+  thread_post(thread, event_functions[command], NULL);
+}
+
+static void wake_assert() {
+  if (state != LPM_DISABLED) {
+    stop_idle_timer();
+
+    uint8_t new_state = BT_VND_LPM_WAKE_ASSERT;
+    vendor->send_command(VENDOR_SET_LPM_WAKE_STATE, &new_state);
+    wake_state = LPM_WAKE_ASSERTED;
+  }
+
+  // TODO(zachoverflow): investigate this interaction. If someone above
+  // HCI asserts wake, we'll wait until we transmit before deasserting.
+  // That doesn't seem quite right.
+  transmit_is_done = false;
+}
+
+static void transmit_done() {
+  transmit_is_done = true;
+  if (wake_state == LPM_WAKE_W4_TX_DONE || wake_state == LPM_WAKE_ASSERTED) {
+    wake_state = LPM_WAKE_W4_TIMEOUT;
+    start_idle_timer();
+  }
+}
+
+// Internal functions
+
+static void enable(bool enable) {
+  if (state == LPM_DISABLING) {
+    if (enable)
+      LOG_ERROR(LOG_TAG, "%s still processing prior disable request, cannot enable.", __func__);
+    else
+      LOG_WARN(LOG_TAG, "%s still processing prior disable request, ignoring new request to disable.", __func__);
+  } else if (state == LPM_ENABLING) {
+    if (enable)
+      LOG_ERROR(LOG_TAG, "%s still processing prior enable request, ignoring new request to enable.", __func__);
+    else
+      LOG_WARN(LOG_TAG, "%s still processing prior enable request, cannot disable.", __func__);
+  } else if (state == LPM_ENABLED && enable) {
+    LOG_INFO(LOG_TAG, "%s already enabled.", __func__);
+  } else if (state == LPM_DISABLED && !enable) {
+    LOG_INFO(LOG_TAG, "%s already disabled.", __func__);
+  } else {
+    uint8_t command = enable ? BT_VND_LPM_ENABLE : BT_VND_LPM_DISABLE;
+    state = enable ? LPM_ENABLING : LPM_DISABLING;
+    if (state == LPM_ENABLING)
+        vendor->send_command(VENDOR_GET_LPM_IDLE_TIMEOUT, &idle_timeout_ms);
+    vendor->send_async_command(VENDOR_SET_LPM_MODE, &command);
+  }
+}
+
+static void allow_device_sleep() {
+  if (state == LPM_ENABLED && wake_state == LPM_WAKE_ASSERTED) {
+    if (transmit_is_done) {
+      wake_state = LPM_WAKE_W4_TIMEOUT;
+      start_idle_timer();
+    } else {
+      wake_state = LPM_WAKE_W4_TX_DONE;
+    }
+  }
+}
+
+static void wake_deassert() {
+  if (state == LPM_ENABLED && transmit_is_done) {
+    uint8_t new_state = BT_VND_LPM_WAKE_DEASSERT;
+    vendor->send_command(VENDOR_SET_LPM_WAKE_STATE, &new_state);
+    wake_state = LPM_WAKE_DEASSERTED;
+  }
+}
+
+static void reset_state() {
+  state = LPM_DISABLED;
+  wake_state = LPM_WAKE_DEASSERTED;
+  transmit_is_done = true;
+  stop_idle_timer();
+}
+
+static void idle_timer_expired(UNUSED_ATTR void *context) {
+  if (state == LPM_ENABLED && wake_state == LPM_WAKE_W4_TIMEOUT)
+    thread_post(thread, event_idle_timeout, NULL);
+}
+
+static void start_idle_timer() {
+  if (state == LPM_ENABLED) {
+    if (idle_timeout_ms == 0) {
+       wake_deassert();
+    } else {
+       alarm_set(idle_alarm, idle_timeout_ms, idle_timer_expired, NULL);
+    }
+  }
+}
+
+static void stop_idle_timer() {
+  alarm_cancel(idle_alarm);
+}
+
+static void event_disable(UNUSED_ATTR void *context) {
+  enable(false);
+}
+
+static void event_enable(UNUSED_ATTR void *context) {
+  enable(true);
+}
+
+static void event_wake_assert(UNUSED_ATTR void *context) {
+  wake_assert();
+}
+
+static void event_allow_device_sleep(UNUSED_ATTR void *context) {
+  allow_device_sleep();
+}
+
+static void event_idle_timeout(UNUSED_ATTR void *context) {
+  wake_deassert();
+}
+
+static void vendor_enable_disable_callback(bool success) {
+  if (success)
+    state = (state == LPM_ENABLING) ? LPM_ENABLED : LPM_DISABLED;
+  else
+    state = (state == LPM_ENABLING) ? LPM_DISABLED : LPM_ENABLED;
+
+  if (state == LPM_DISABLED) {
+    reset_state();
+  }
+}
+
+static const low_power_manager_t interface = {
+  init,
+  cleanup,
+  post_command,
+  wake_assert,
+  transmit_done
+};
+
+const low_power_manager_t *low_power_manager_get_interface() {
+  vendor = vendor_get_interface();
+  return &interface;
+}
+
+const low_power_manager_t *low_power_manager_get_test_interface(const vendor_t *vendor_interface) {
+  vendor = vendor_interface;
+  return &interface;
+}
diff --git a/rtkbt/code/bt/hci/src/packet_fragmenter.c b/rtkbt/code/bt/hci/src/packet_fragmenter.c
new file mode 100755
index 0000000..eae6905
--- /dev/null
+++ b/rtkbt/code/bt/hci/src/packet_fragmenter.c
@@ -0,0 +1,249 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_hci_packet_fragmenter"
+
+#include "packet_fragmenter.h"
+
+#include <assert.h>
+#include <string.h>
+
+#include "bt_target.h"
+#include "buffer_allocator.h"
+#include "device/include/controller.h"
+#include "hci_internals.h"
+#include "osi/include/hash_functions.h"
+#include "osi/include/hash_map.h"
+#include "osi/include/log.h"
+#include "osi/include/osi.h"
+
+#define APPLY_CONTINUATION_FLAG(handle) (((handle) & 0xCFFF) | 0x1000)
+#define APPLY_START_FLAG(handle) (((handle) & 0xCFFF) | 0x2000)
+#define SUB_EVENT(event) ((event) & MSG_SUB_EVT_MASK)
+#define GET_BOUNDARY_FLAG(handle) (((handle) >> 12) & 0x0003)
+
+#define HANDLE_MASK 0x0FFF
+#define START_PACKET_BOUNDARY 2
+#define CONTINUATION_PACKET_BOUNDARY 1
+#define L2CAP_HEADER_SIZE       4
+
+// TODO(zachoverflow): find good value for this
+#define NUMBER_OF_BUCKETS 42
+
+// Our interface and callbacks
+static const packet_fragmenter_t interface;
+static const allocator_t *buffer_allocator;
+static const controller_t *controller;
+static const packet_fragmenter_callbacks_t *callbacks;
+
+static hash_map_t *partial_packets;
+
+static void init(const packet_fragmenter_callbacks_t *result_callbacks) {
+  callbacks = result_callbacks;
+  partial_packets = hash_map_new(NUMBER_OF_BUCKETS, hash_function_naive, NULL, NULL, NULL);
+}
+
+static void cleanup() {
+  if (partial_packets)
+    hash_map_free(partial_packets);
+}
+
+static void fragment_and_dispatch(BT_HDR *packet) {
+  assert(packet != NULL);
+
+  uint16_t event = packet->event & MSG_EVT_MASK;
+  uint8_t *stream = packet->data + packet->offset;
+
+  // We only fragment ACL packets
+  if (event != MSG_STACK_TO_HC_HCI_ACL) {
+    callbacks->fragmented(packet, true);
+    return;
+  }
+
+  uint16_t max_data_size =
+    SUB_EVENT(packet->event) == LOCAL_BR_EDR_CONTROLLER_ID ?
+      controller->get_acl_data_size_classic() :
+      controller->get_acl_data_size_ble();
+
+  uint16_t max_packet_size = max_data_size + HCI_ACL_PREAMBLE_SIZE;
+  uint16_t remaining_length = packet->len;
+
+  uint16_t continuation_handle;
+  STREAM_TO_UINT16(continuation_handle, stream);
+  continuation_handle = APPLY_CONTINUATION_FLAG(continuation_handle);
+
+  while (remaining_length > max_packet_size) {
+    // Make sure we use the right ACL packet size
+    stream = packet->data + packet->offset;
+    STREAM_SKIP_UINT16(stream);
+    UINT16_TO_STREAM(stream, max_data_size);
+
+    packet->len = max_packet_size;
+    callbacks->fragmented(packet, false);
+
+    packet->offset += max_data_size;
+    remaining_length -= max_data_size;
+    packet->len = remaining_length;
+
+    // Write the ACL header for the next fragment
+    stream = packet->data + packet->offset;
+    UINT16_TO_STREAM(stream, continuation_handle);
+    UINT16_TO_STREAM(stream, remaining_length - HCI_ACL_PREAMBLE_SIZE);
+
+    // Apparently L2CAP can set layer_specific to a max number of segments to transmit
+    if (packet->layer_specific) {
+      packet->layer_specific--;
+
+      if (packet->layer_specific == 0) {
+        packet->event = MSG_HC_TO_STACK_L2C_SEG_XMIT;
+        callbacks->transmit_finished(packet, false);
+        return;
+      }
+    }
+  }
+
+  callbacks->fragmented(packet, true);
+}
+
+static bool check_uint16_overflow(uint16_t a, uint16_t b) {
+  return (UINT16_MAX - a) < b;
+}
+
+static void reassemble_and_dispatch(UNUSED_ATTR BT_HDR *packet) {
+  if ((packet->event & MSG_EVT_MASK) == MSG_HC_TO_STACK_HCI_ACL) {
+    uint8_t *stream = packet->data;
+    uint16_t handle;
+    uint16_t l2cap_length;
+    uint16_t acl_length;
+
+    STREAM_TO_UINT16(handle, stream);
+    STREAM_TO_UINT16(acl_length, stream);
+    STREAM_TO_UINT16(l2cap_length, stream);
+
+    assert(acl_length == packet->len - HCI_ACL_PREAMBLE_SIZE);
+
+    uint8_t boundary_flag = GET_BOUNDARY_FLAG(handle);
+    handle = handle & HANDLE_MASK;
+
+    BT_HDR *partial_packet = (BT_HDR *)hash_map_get(partial_packets, (void *)(uintptr_t)handle);
+
+    if (boundary_flag == START_PACKET_BOUNDARY) {
+      if (partial_packet) {
+        LOG_WARN(LOG_TAG, "%s found unfinished packet for handle with start packet. Dropping old.", __func__);
+
+        hash_map_erase(partial_packets, (void *)(uintptr_t)handle);
+        buffer_allocator->free(partial_packet);
+      }
+
+      if (acl_length < L2CAP_HEADER_SIZE) {
+        LOG_WARN(LOG_TAG, "%s L2CAP packet too small (%d < %d). Dropping it.", __func__, packet->len, L2CAP_HEADER_SIZE);
+        buffer_allocator->free(packet);
+        return;
+      }
+
+      uint16_t full_length = l2cap_length + L2CAP_HEADER_SIZE + HCI_ACL_PREAMBLE_SIZE;
+
+      // Check for buffer overflow and that the full packet size + BT_HDR size is less than
+      // the max buffer size
+      if (check_uint16_overflow(l2cap_length, (L2CAP_HEADER_SIZE + HCI_ACL_PREAMBLE_SIZE)) ||
+          ((full_length + sizeof(BT_HDR)) > BT_DEFAULT_BUFFER_SIZE)) {
+        LOG_ERROR(LOG_TAG, "%s L2CAP packet has invalid length (%d). Dropping it.", __func__, l2cap_length);
+        buffer_allocator->free(packet);
+        return;
+      }
+
+      if (full_length <= packet->len) {
+        if (full_length < packet->len)
+          LOG_WARN(LOG_TAG, "%s found l2cap full length %d less than the hci length %d.", __func__, l2cap_length, packet->len);
+
+        callbacks->reassembled(packet);
+        return;
+      }
+
+      partial_packet = (BT_HDR *)buffer_allocator->alloc(full_length + sizeof(BT_HDR));
+      partial_packet->event = packet->event;
+      partial_packet->len = full_length;
+      partial_packet->offset = packet->len;
+
+      memcpy(partial_packet->data, packet->data, packet->len);
+
+      // Update the ACL data size to indicate the full expected length
+      stream = partial_packet->data;
+      STREAM_SKIP_UINT16(stream); // skip the handle
+      UINT16_TO_STREAM(stream, full_length - HCI_ACL_PREAMBLE_SIZE);
+
+      hash_map_set(partial_packets, (void *)(uintptr_t)handle, partial_packet);
+      // Free the old packet buffer, since we don't need it anymore
+      buffer_allocator->free(packet);
+    } else {
+      if (!partial_packet) {
+        LOG_WARN(LOG_TAG, "%s got continuation for unknown packet. Dropping it.", __func__);
+        buffer_allocator->free(packet);
+        return;
+      }
+
+      packet->offset = HCI_ACL_PREAMBLE_SIZE;
+      uint16_t projected_offset = partial_packet->offset + (packet->len - HCI_ACL_PREAMBLE_SIZE);
+      if (projected_offset > partial_packet->len) { // len stores the expected length
+        LOG_WARN(LOG_TAG, "%s got packet which would exceed expected length of %d. Truncating.", __func__, partial_packet->len);
+        packet->len = partial_packet->len - partial_packet->offset;
+        projected_offset = partial_packet->len;
+      }
+
+      memcpy(
+        partial_packet->data + partial_packet->offset,
+        packet->data + packet->offset,
+        packet->len - packet->offset
+      );
+
+      // Free the old packet buffer, since we don't need it anymore
+      buffer_allocator->free(packet);
+      partial_packet->offset = projected_offset;
+
+      if (partial_packet->offset == partial_packet->len) {
+        hash_map_erase(partial_packets, (void *)(uintptr_t)handle);
+        partial_packet->offset = 0;
+        callbacks->reassembled(partial_packet);
+      }
+    }
+  } else {
+    callbacks->reassembled(packet);
+  }
+}
+
+static const packet_fragmenter_t interface = {
+  init,
+  cleanup,
+
+  fragment_and_dispatch,
+  reassemble_and_dispatch
+};
+
+const packet_fragmenter_t *packet_fragmenter_get_interface() {
+  controller = controller_get_interface();
+  buffer_allocator = buffer_allocator_get_interface();
+  return &interface;
+}
+
+const packet_fragmenter_t *packet_fragmenter_get_test_interface(
+    const controller_t *controller_interface,
+    const allocator_t *buffer_allocator_interface) {
+  controller = controller_interface;
+  buffer_allocator = buffer_allocator_interface;
+  return &interface;
+}
diff --git a/rtkbt/code/bt/hci/src/rtk_btsnoop_net.c b/rtkbt/code/bt/hci/src/rtk_btsnoop_net.c
new file mode 100755
index 0000000..5ea9302
--- /dev/null
+++ b/rtkbt/code/bt/hci/src/rtk_btsnoop_net.c
@@ -0,0 +1,244 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2013 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "rtk_btsnoop_net"
+
+#include <assert.h>
+#include <errno.h>
+#include <netinet/in.h>
+#include <pthread.h>
+#include <stdbool.h>
+#include <string.h>
+#include <sys/prctl.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <time.h>
+
+#include "osi/include/osi.h"
+#include "osi/include/log.h"
+#include "hci_hal.h"
+
+#define DATA_DIRECT_2_ELLISY 1
+
+#define HCI_COMMAND         0x01
+#define HCI_ACL_DATA_H2C    0x02
+#define HCI_ACL_DATA_C2H    0x82
+#define HCI_SCO_DATA_H2C    0x03
+#define HCI_SCO_DATA_C2H    0x83
+#define HCI_EVENT           0x84
+
+#define HCI_COMMAND_PKT         0x01
+#define HCI_ACLDATA_PKT         0x02
+#define HCI_SCODATA_PKT         0x03
+#define HCI_EVENT_PKT           0x04
+
+
+extern unsigned int rtkbt_logfilter;
+
+static void rtk_safe_close_(int *fd);
+static void *rtk_listen_fn_(void *context);
+
+static const char *RTK_LISTEN_THREAD_NAME_ = "rtk_btsnoop_net";
+static const int RTK_LOCALHOST_ = 0xC0A80AE2;       // 192.168.10.226
+static const int RTK_LISTEN_PORT_ = 8872;
+
+static const int RTK_REMOTEHOST_ = 0xC0A80A03;       // 192.168.10.21
+static const int RTK_REMOTE_PORT_ = 24352;
+
+
+static pthread_t rtk_listen_thread_;
+static bool rtk_listen_thread_valid_ = false;
+static pthread_mutex_t rtk_client_socket_lock_ = PTHREAD_MUTEX_INITIALIZER;
+static int rtk_listen_socket_ = -1;
+
+void rtk_btsnoop_net_open() {
+    rtk_listen_thread_valid_ = (pthread_create(&rtk_listen_thread_, NULL, rtk_listen_fn_, NULL) == 0);
+    if (!rtk_listen_thread_valid_) {
+        LOG_ERROR(LOG_TAG, "%s pthread_create failed: %s", __func__, strerror(errno));
+    } else {
+        LOG_DEBUG(LOG_TAG, "initialized");
+    }
+}
+
+void rtk_btsnoop_net_close() {
+    if (rtk_listen_thread_valid_) {
+        shutdown(rtk_listen_socket_, SHUT_RDWR);
+        pthread_join(rtk_listen_thread_, NULL);
+        rtk_listen_thread_valid_ = false;
+    }
+}
+
+void rtk_btsnoop_net_write(serial_data_type_t type, uint8_t *data, bool is_received) {
+    if (rtk_listen_socket_ == -1) {
+        return;
+    }
+    int length = 0;
+    uint8_t *p = data;
+
+    switch (type) {
+    case HCI_COMMAND_PKT:
+        if(((rtkbt_logfilter & 1) == 0) || (*p != 0x94) || (*(p + 1) != 0xfc))
+            length = data[2] + 3;
+        else
+            return;
+    break;
+    case HCI_ACLDATA_PKT:
+        length = (data[3] << 8) + data[2] + 4;
+    break;
+    case HCI_SCODATA_PKT:
+        length = data[2] + 3;
+    break;
+    case HCI_EVENT_PKT:
+    if((*(p + 3) == 0x94) && (*(p + 4) == 0xfc) && (*(p + 5) == 0x00)&&(rtkbt_logfilter&1)){return;}
+    else
+        length = data[1] + 2;
+    break;
+    default:
+        break;
+    }
+
+
+    uint8_t buffer[4126] = {0};
+    //uint8_t test_buffer[] = {0x03, 0x00, 0x00, 0x00, 0x01, 0x01, 0x10, 0x00};
+    //uint8_t test_buffer2[] = {0x01, 0x10, 0x00};
+    struct sockaddr_in client_addr;
+    int i = 0;
+
+#if DATA_DIRECT_2_ELLISY
+    uint8_t bit_rate[4] = {0x00, 0x1b, 0x37, 0x4b};
+    struct tm *t;
+    time_t tt;
+    time(&tt);
+    t = localtime(&tt);
+
+    struct timeval tv;
+    gettimeofday(&tv, NULL);
+
+    uint64_t nano_time = (t->tm_hour * 3600 + t->tm_min * 60 + t->tm_sec) * 1000 * 1000LL * 1000 + tv.tv_usec * 1000;
+    uint16_t year = (t->tm_year + 1900) & 0xFFFF;
+    uint8_t  month = (t->tm_mon+1) & 0xFF;
+    uint8_t  day =
+    buffer[0] = 0x02;
+    buffer[1] = 0x00;
+    buffer[2] = 0x01;
+    buffer[3] = 0x02;
+    //time
+    memcpy(&buffer[4], &year, 2);
+    buffer[6] = month;
+    buffer[7] = day;
+    memcpy(&buffer[8], &nano_time, 6);
+    //bit rate
+    buffer[14] = 0x80;
+    memcpy(&buffer[15], bit_rate, 4);
+    //type
+    buffer[19] = 0x81;
+    i = 20;
+#else
+    memcpy(&buffer[i], &length, sizeof(int));
+    i = 4;
+#endif
+    switch (type) {
+        case HCI_COMMAND_PKT:
+        buffer[i] = HCI_COMMAND;
+        break;
+
+        case HCI_ACLDATA_PKT:
+        if(is_received) {
+            buffer[i] = HCI_ACL_DATA_C2H;
+        }
+        else {
+            buffer[i] = HCI_ACL_DATA_H2C;
+        }
+        break;
+
+        case HCI_SCODATA_PKT:
+        if(is_received) {
+            buffer[i] = HCI_SCO_DATA_C2H;
+        }
+        else {
+            buffer[i] = HCI_SCO_DATA_H2C;
+        }
+        break;
+
+        case HCI_EVENT_PKT:
+        buffer[i] = HCI_EVENT;
+        break;
+
+        default:
+        buffer[i] = 0;
+        break;
+
+    }
+#if DATA_DIRECT_2_ELLISY
+    //buffer[i] = HCI_COMMAND;
+    buffer[21] = 0x82;
+    i = 22;
+#else
+    i = 5;
+#endif
+    memcpy(&buffer[i], data, length);
+    //memcpy(&buffer[i], test_buffer2, 3);
+    memset(&client_addr, 0, sizeof(client_addr));
+    client_addr.sin_family = AF_INET;
+    client_addr.sin_addr.s_addr = htonl(RTK_REMOTEHOST_);
+    client_addr.sin_port = htons(RTK_REMOTE_PORT_);
+    pthread_mutex_lock(&rtk_client_socket_lock_);
+    sendto(rtk_listen_socket_, buffer, (length+i), 0,(struct sockaddr*)&client_addr, sizeof(struct sockaddr_in));
+    //sendto(rtk_listen_socket_, buffer, 25, 0,(struct sockaddr*)&client_addr, sizeof(struct sockaddr_in));
+    pthread_mutex_unlock(&rtk_client_socket_lock_);
+}
+
+static void *rtk_listen_fn_(UNUSED_ATTR void *context) {
+    prctl(PR_SET_NAME, (unsigned long)RTK_LISTEN_THREAD_NAME_, 0, 0, 0);
+
+    rtk_listen_socket_ = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
+    if (rtk_listen_socket_ == -1) {
+        LOG_ERROR(LOG_TAG, "%s socket creation failed: %s", __func__, strerror(errno));
+        goto cleanup;
+    }
+
+    struct sockaddr_in addr;
+    memset(&addr, 0, sizeof(addr));
+    addr.sin_family = AF_INET;
+    addr.sin_addr.s_addr = htonl(RTK_LOCALHOST_);
+    addr.sin_port = htons(RTK_LISTEN_PORT_);
+
+    struct sockaddr_in client_addr;
+    memset(&client_addr, 0, sizeof(client_addr));
+    client_addr.sin_family = AF_INET;
+    client_addr.sin_addr.s_addr = htonl(RTK_REMOTEHOST_);
+    client_addr.sin_port = htons(RTK_REMOTE_PORT_);
+
+    if (bind(rtk_listen_socket_, (struct sockaddr *)&addr, sizeof(addr)) == -1) {
+        LOG_ERROR(LOG_TAG, "%s unable to bind listen socket: %s", __func__, strerror(errno));
+        goto cleanup;
+    }
+
+    return NULL;
+cleanup:
+    rtk_safe_close_(&rtk_listen_socket_);
+    return NULL;
+}
+
+static void rtk_safe_close_(int *fd) {
+  assert(fd != NULL);
+  if (*fd != -1) {
+    close(*fd);
+    *fd = -1;
+  }
+}
diff --git a/rtkbt/code/bt/hci/src/rtk_parse.c b/rtkbt/code/bt/hci/src/rtk_parse.c
new file mode 100755
index 0000000..3575352
--- /dev/null
+++ b/rtkbt/code/bt/hci/src/rtk_parse.c
@@ -0,0 +1,2648 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2016 Realtek Corporation.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+/******************************************************************************
+*
+*	Module Name:
+*		rtk_parse.c
+*
+*	Abstract:
+*		Contains wifi-bt coex functions implemented by bluedroid stack
+*
+*	Major Change History:
+*	      When             Who       What
+*	 	---------------------------------------------------------------
+*	    2015-12-15      lamparten   modified
+*	    2014-10-23       kyle_xu    modified
+*	Notes:
+*		  This is designed for wifi-bt Coex in Android 6.0.
+*
+******************************************************************************/
+#define LOG_TAG "rtk_parse"
+
+#include <utils/Log.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <fcntl.h>
+#include <termios.h>
+#include <errno.h>
+#include <signal.h>
+#include <time.h>
+#include <unistd.h>
+#include <string.h>
+#include <ctype.h>
+#include <sys/un.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+#include <sys/prctl.h>
+#include <linux/types.h>
+#include <linux/netlink.h>
+#include <arpa/inet.h>
+#include <netinet/in.h>
+#include <dirent.h>
+#include <signal.h>
+#include <poll.h>
+
+#include "bt_list.h"
+#include "bt_hci_bdroid.h"
+#include "hci_layer.h"
+
+#include "rtk_parse.h"
+#include "hcidefs.h"
+
+#define RTK_VERSION "2.0"
+
+char invite_req[] = "INVITE_REQ";
+char invite_rsp[] = "INVITE_RSP";
+char attend_req[] = "ATTEND_REQ";
+char attend_ack[] = "ATTEND_ACK";
+char wifi_leave[] = "WIFI_LEAVE";
+char leave_ack[] =  "LEAVE_ACK";
+char bt_leave[] =   "BT_LEAVE";
+
+#define CONNECT_PORT        30001
+#define CONNECT_PORT_WIFI   30000
+//#define NETLINK_USER        31
+#define MAX_PAYLOAD         255 /* maximum payload size*/
+
+//L2CAP TYPE
+#define L2CAP_CONNECTION_REQ        0x02
+#define L2CAP_CONNECTION_RSP        0x03
+#define L2CAP_DISCONNECTION_REQ     0x06
+#define L2CAP_DISCONNECTION_RSP     0x07
+
+#define TIMER_A2DP_PACKET_COUNT     (SIGRTMAX -5)
+#define TIMER_PAN_PACKET_COUNT      (SIGRTMAX -6)
+#define TIMER_HOGP_PACKET_COUNT     (SIGRTMAX -7)
+#define TIMER_POLLING               (SIGRTMAX -8)
+
+#define PAN_PACKET_COUNT                5
+#define PACKET_COUNT_TIOMEOUT_VALUE     1000//ms
+
+//vendor cmd to fw
+#define HCI_VENDOR_ENABLE_PROFILE_REPORT_COMMAND        (0x0018 | HCI_GRP_VENDOR_SPECIFIC)
+#define HCI_VENDOR_SET_PROFILE_REPORT_COMMAND           (0x0019 | HCI_GRP_VENDOR_SPECIFIC)
+#define HCI_VENDOR_MAILBOX_CMD                          (0x008F | HCI_GRP_VENDOR_SPECIFIC)
+
+#define HCI_VENDOR_ADD_BITPOOL_FW                       (0x0051 | HCI_GRP_VENDOR_SPECIFIC)
+
+//subcmd to fw for HCI_VENDOR_MAILBOX_CMD
+#define HCI_VENDOR_SUB_CMD_WIFI_CHANNEL_AND_BANDWIDTH_CMD   0x11
+#define HCI_VENDOR_SUB_CMD_WIFI_FORCE_TX_POWER_CMD          0x17
+#define HCI_VENDOR_SUB_CMD_BT_ENABLE_IGNORE_WLAN_ACT_CMD    0x1B
+#define HCI_VENDOR_SUB_CMD_BT_REPORT_CONN_SCO_INQ_INFO      0x23
+#define HCI_VENDOR_SUB_CMD_BT_AUTO_REPORT_STATUS_INFO       0x27
+#define HCI_VENDOR_SUB_CMD_BT_AUTO_REPORT_ENABLE            0x28
+#define HCI_VENDOR_SUB_CMD_BT_SET_TXRETRY_REPORT_PARAM      0x29
+#define HCI_VENDOR_SUB_CMD_BT_SET_PTATABLE                  0x2A
+#define HCI_VENDOR_SUB_CMD_SET_BT_PSD_MODE                  0x31
+#define HCI_VENDOR_SUB_CMD_SET_BT_LNA_CONSTRAINT            0x32
+#define HCI_VENDOR_SUB_CMD_GET_AFH_MAP_L                    0x40
+#define HCI_VENDOR_SUB_CMD_GET_AFH_MAP_M                    0x41
+#define HCI_VENDOR_SUB_CMD_GET_AFH_MAP_H                    0x42
+#define HCI_VENDOR_SUB_CMD_RD_REG_REQ                       0x43
+#define HCI_VENDOR_SUB_CMD_WR_REG_REQ                       0x44
+
+//sub event from fw
+#define HCI_VENDOR_PTA_REPORT_EVENT         0x24
+#define    HCI_VENDOR_PTA_AUTO_REPORT_EVENT    0x25
+
+//vendor cmd to wifi driver
+#define HCI_OP_HCI_EXTENSION_VERSION_NOTIFY (0x0100 | HCI_GRP_VENDOR_SPECIFIC)
+#define HCI_OP_BT_OPERATION_NOTIFY          (0x0102 | HCI_GRP_VENDOR_SPECIFIC)
+#define    HCI_OP_HCI_BT_INFO_NOTIFY           (0x0106 | HCI_GRP_VENDOR_SPECIFIC)
+#define    HCI_OP_HCI_BT_COEX_NOTIFY           (0x0107 | HCI_GRP_VENDOR_SPECIFIC)
+#define HCI_OP_HCI_BT_PATCH_VER_NOTIFY      (0x0108 | HCI_GRP_VENDOR_SPECIFIC)
+#define HCI_OP_HCI_BT_AFH_MAP_NOTIFY        (0x0109 | HCI_GRP_VENDOR_SPECIFIC)
+#define HCI_OP_HCI_BT_REGISTER_VALUE_NOTIFY (0x010a | HCI_GRP_VENDOR_SPECIFIC)
+
+//bt operation to notify for HCI_OP_BT_OPERATION_NOTIFY
+#define BT_OPCODE_NONE                  0
+#define BT_OPCODE_INQUIRY_START         1
+#define BT_OPCODE_INQUIRY_END           2
+#define BT_OPCODE_PAGE_START            3
+#define BT_OPCODE_PAGE_SUCCESS_END      4
+#define BT_OPCODE_PAGE_UNSUCCESS_END    5
+#define BT_OPCODE_PAIR_START            6
+#define BT_OPCODE_PAIR_END              7
+#define BT_OPCODE_ENABLE_BT             8
+#define BT_OPCODE_DISABLE_BT            9
+
+//bt info reason to wifi for HCI_OP_HCI_BT_INFO_NOTIFY
+#define HOST_RESPONSE                   0 //Host response when receive the BT Info Control Event
+#define POLLING_RESPONSE                1 //The BT Info response for polling by BT firmware.
+#define AUTO_REPORT                     2 //BT auto report by BT firmware.
+#define STACK_REPORT_WHILE_DEVICE_D2    3 //Stack report when BT firmware is under power save state(ex:D2)
+
+// vendor event from wifi
+#define RTK_HS_EXTENSION_EVENT_WIFI_SCAN            0x01
+#define RTK_HS_EXTENSION_EVENT_RADIO_STATUS_NOTIFY  0x02
+#define RTK_HS_EXTENSION_EVENT_HCI_BT_INFO_CONTROL  0x03
+#define RTK_HS_EXTENSION_EVENT_HCI_BT_COEX_CONTROL  0x04
+
+//op code from wifi for RTK_HS_EXTENSION_EVENT_HCI_BT_COEX_CONTROL
+#define BT_PATCH_VERSION_QUERY      0x00
+#define IGNORE_WLAN_ACTIVE_CONTROL  0x01
+#define LNA_CONSTRAIN_CONTROL       0x02
+#define BT_POWER_DECREASE_CONTROL   0x03
+#define BT_PSD_MODE_CONTROL         0x04
+#define WIFI_BW_CHNL_NOTIFY         0x05
+#define QUERY_BT_AFH_MAP            0x06
+#define BT_REGISTER_ACCESS          0x07
+
+#define HCI_EXTENSION_VERSION   0x0004
+
+#define HCI_CMD_PREAMBLE_SIZE   3
+
+#define PSM_SDP     0x0001
+#define PSM_RFCOMM  0x0003
+#define PSM_PAN     0x000F
+#define PSM_HID     0x0011
+#define PSM_HID_INT 0x0013
+#define PSM_AVCTP   0x0017
+#define PSM_AVDTP   0x0019
+#define PSM_FTP     0x1001
+#define PSM_BIP     0x1003
+#define PSM_OPP     0x1015
+//--Add more if needed--//
+
+enum {
+    profile_sco = 0,
+    profile_hid = 1,
+    profile_a2dp = 2,
+    profile_pan = 3,
+    profile_hid_interval = 4,
+    profile_hogp = 5,
+    profile_voice = 6,
+    profile_max = 7
+};
+
+//profile info data
+typedef struct RTK_PROF_INFO {
+    RT_LIST_ENTRY   list;
+    uint16_t        handle;
+    uint16_t        psm;
+    uint16_t        dcid;
+    uint16_t        scid;
+    uint8_t         profile_index;
+}tRTK_PROF_INFO;
+
+//profile info for each connection
+typedef struct RTK_CONN_PROF {
+    RT_LIST_ENTRY list;
+    uint16_t handle;
+    uint8_t type;                   //0:l2cap, 1:sco/esco, 2:le
+    uint8_t profile_bitmap;         //0:SCO, 1:HID, 2:A2DP, 3:FTP/PAN/OPP, 4: HID_interval, 5:HOGP, 6:VOICE
+    int8_t  profile_refcount[8];    //0:SCO, 1:HID, 2:A2DP, 3:FTP/PAN/OPP, 4:TBD, 5:HOGP, 6:VOICE
+}tRTK_CONN_PROF;
+
+//profile info for all
+typedef struct RTK_PROF {
+    RT_LIST_HEAD    conn_hash;      //hash for connections
+    RT_LIST_HEAD    profile_list;   //hash for profile info
+    pthread_mutex_t profile_mutex;
+    pthread_mutex_t udpsocket_mutex;
+    pthread_t thread_monitor;
+    pthread_t thread_data;
+    timer_t  timer_a2dp_packet_count;
+    timer_t  timer_pan_packet_count;
+    timer_t  timer_hogp_packet_count;
+    timer_t  timer_polling;
+    //struct sockaddr_nl src_addr;    //for netlink
+    struct sockaddr_in server_addr; //server addr for kernel socket
+    struct sockaddr_in client_addr; //client addr  for kernel socket
+    uint32_t a2dp_packet_count;
+    uint32_t pan_packet_count;
+    uint32_t hogp_packet_count;
+    uint32_t voice_packet_count;
+    uint8_t  profile_bitmap;
+    uint8_t  profile_status;
+    int8_t   profile_refcount[8];
+    uint8_t  ispairing;
+    uint8_t  isinquirying;
+    uint8_t  ispaging;
+    uint8_t  wifi_state;
+    uint8_t  autoreport;
+    uint8_t  polling_enable;
+    uint8_t  polling_interval;
+    volatile uint8_t udpsocket_recv_thread_running;
+    //int32_t   nlsocket;
+    int32_t   udpsocket;
+    uint8_t  piconet_id;
+    uint8_t  mode;
+    uint8_t  afh_map[10];
+    uint16_t hci_reversion;
+    uint16_t lmp_subversion;
+    uint8_t  wifi_on;
+    //uint8_t  le_profile_index;
+}tRTK_PROF;
+
+typedef struct HCI_LINKSTATUS_REPORT {
+    uint8_t     cmd_index;
+    uint8_t     cmd_length;
+    uint8_t     link_status;
+    uint8_t     retry_cnt;
+    uint8_t     rssi;
+    uint8_t     mailbox_info;
+
+    uint16_t     acl_throughput;
+    uint8_t     bitpool;
+
+}tHCI_LINKSTATUS_REPORT;
+
+typedef struct HCI_RETURN_PARAMETER_MAILBOX_REGISTER {
+    uint8_t  type;
+    uint32_t offset;
+    uint32_t value;
+}tHCI_RETURN_PARAMETER_MAILBOX_REGISTER;
+
+typedef struct HCI_EVENT_BT_INFO_CONTROL {
+    uint8_t     polling_enable;
+    uint8_t     polling_time;
+    uint8_t     autoreport_enable;
+}tHCI_EVENT_BT_INFO_CONTROL;
+
+tRTK_PROF rtk_prof;
+volatile int poweroff_allowed = 0;
+uint8_t coex_log_enable = 1;
+static const hci_t *hci_interface;
+
+static const allocator_t *buffer_allocator;
+
+
+#define BIT(_I)                         (uint16_t)(1<<(_I))
+#define is_profile_connected(profile)   ((rtk_prof.profile_bitmap & BIT(profile)) >0)
+#define is_profile_busy(profile)        ((rtk_prof.profile_status & BIT(profile)) >0)
+
+static void timeout_handler(int signo, siginfo_t * info, void *context);
+
+#ifndef RTK_PARSE_LOG_BUF_SIZE
+#define RTK_PARSE_LOG_BUF_SIZE  1024
+#endif
+#define RTK_PARSE_LOG_MAX_SIZE  (RTK_PARSE_LOG_BUF_SIZE - 12)
+
+#define LOGI0(t,s) __android_log_write(ANDROID_LOG_INFO, t, s)
+static void LogMsg(const char *fmt_str, ...)
+{
+    static char buffer[RTK_PARSE_LOG_BUF_SIZE];
+    if(coex_log_enable)
+    {
+        va_list ap;
+        va_start(ap, fmt_str);
+        vsnprintf(&buffer[0], RTK_PARSE_LOG_MAX_SIZE, fmt_str, ap);
+        va_end(ap);
+
+        LOGI0("rtk_parse: ", buffer);
+    }
+    else
+    {
+        return;
+    }
+}
+
+static timer_t OsAllocateTimer(int signo)
+{
+    struct sigevent sigev;
+    timer_t timerid;
+
+    // Create the POSIX timer to generate signo
+    sigev.sigev_notify = SIGEV_SIGNAL;
+    sigev.sigev_signo = signo;
+    sigev.sigev_value.sival_ptr = &timerid;
+
+    //Create the Timer using timer_create signal
+    if (timer_create(CLOCK_REALTIME, &sigev, &timerid) == 0)
+    {
+        return timerid;
+    }
+    else
+    {
+        ALOGE("timer_create error!");
+        return NULL;
+    }
+}
+
+static int OsFreeTimer(timer_t timerid)
+{
+    int ret = 0;
+    ret = timer_delete(timerid);
+    if(ret != 0)
+        ALOGE("timer_delete fail with errno(%d)", errno);
+
+    return ret;
+}
+
+static int OsStartTimer(timer_t timerid, int msec, int mode)
+{
+    struct itimerspec itval;
+
+    itval.it_value.tv_sec = msec / 1000;
+    itval.it_value.tv_nsec = (long)(msec % 1000) * (1000000L);
+
+    if (mode == 1)
+    {
+        itval.it_interval.tv_sec  = itval.it_value.tv_sec;
+        itval.it_interval.tv_nsec = itval.it_value.tv_nsec;
+    }
+    else
+    {
+        itval.it_interval.tv_sec = 0;
+        itval.it_interval.tv_nsec = 0;
+    }
+
+    //Set the Timer when to expire through timer_settime
+    if (timer_settime(timerid, 0, &itval, NULL) != 0)
+    {
+        ALOGE("time_settime error!");
+        return -1;
+    }
+
+    return 0;
+}
+
+static int OsStopTimer(timer_t timerid)
+{
+    return OsStartTimer(timerid, 0, 0);
+}
+
+int alloc_polling_timer()
+{
+    struct sigaction sigact;
+
+    sigemptyset(&sigact.sa_mask);
+    sigact.sa_flags = SA_SIGINFO;
+
+    //register the Signal Handler
+    sigact.sa_sigaction = timeout_handler;
+
+    // Set up sigaction to catch signal first timer
+    if (sigaction(TIMER_POLLING, &sigact, NULL) == -1)
+    {
+        ALOGE("alloc_polling_timer, sigaction failed");
+        return -1;
+    }
+
+    // Create and set the timer when to expire
+    rtk_prof.timer_polling= OsAllocateTimer(TIMER_POLLING);
+    LogMsg("alloc polling timer");
+
+    return 0;
+}
+
+int free_polling_timer()
+{
+    return OsFreeTimer(rtk_prof.timer_polling);
+}
+
+int stop_polling_timer()
+{
+    LogMsg("stop polling timer");
+    return OsStopTimer(rtk_prof.timer_polling);
+}
+
+int start_polling_timer(int value)
+{
+    LogMsg("start polling timer");
+    return OsStartTimer(rtk_prof.timer_polling, value, 1);
+}
+
+int alloc_hogp_packet_count_timer()
+{
+    struct sigaction sigact;
+
+    sigemptyset(&sigact.sa_mask);
+    sigact.sa_flags = SA_SIGINFO;
+
+    //register the Signal Handler
+    sigact.sa_sigaction = timeout_handler;
+
+    // Set up sigaction to catch signal first timer
+    if (sigaction(TIMER_HOGP_PACKET_COUNT, &sigact, NULL) == -1)
+    {
+        ALOGE("alloc_hogp_packet_count_timer, sigaction failed");
+        return -1;
+    }
+
+    // Create and set the timer when to expire
+    rtk_prof.timer_hogp_packet_count= OsAllocateTimer(TIMER_HOGP_PACKET_COUNT);
+    LogMsg("alloc hogp packet");
+
+    return 0;
+}
+
+int free_hogp_packet_count_timer()
+{
+    return OsFreeTimer(rtk_prof.timer_hogp_packet_count);
+}
+
+int stop_hogp_packet_count_timer()
+{
+    LogMsg("stop hogp packet");
+    return OsStopTimer(rtk_prof.timer_hogp_packet_count);
+}
+
+int start_hogp_packet_count_timer()
+{
+    LogMsg("start hogp packet");
+    return OsStartTimer(rtk_prof.timer_hogp_packet_count, PACKET_COUNT_TIOMEOUT_VALUE, 1);
+}
+
+int alloc_a2dp_packet_count_timer()
+{
+    struct sigaction sigact;
+
+    sigemptyset(&sigact.sa_mask);
+    sigact.sa_flags = SA_SIGINFO;
+
+    //register the Signal Handler
+    sigact.sa_sigaction = timeout_handler;
+
+    // Set up sigaction to catch signal first timer
+    if (sigaction(TIMER_A2DP_PACKET_COUNT, &sigact, NULL) == -1)
+    {
+        ALOGE("alloc_a2dp_packet_count_timer, sigaction failed");
+        return -1;
+    }
+
+    // Create and set the timer when to expire
+    rtk_prof.timer_a2dp_packet_count= OsAllocateTimer(TIMER_A2DP_PACKET_COUNT);
+    LogMsg("alloc a2dp packet");
+
+    return 0;
+}
+
+int free_a2dp_packet_count_timer()
+{
+    return OsFreeTimer(rtk_prof.timer_a2dp_packet_count);
+}
+
+int stop_a2dp_packet_count_timer()
+{
+    LogMsg("stop a2dp packet");
+    return OsStopTimer(rtk_prof.timer_a2dp_packet_count);
+}
+
+int start_a2dp_packet_count_timer()
+{
+    LogMsg("start a2dp packet");
+    return OsStartTimer(rtk_prof.timer_a2dp_packet_count, PACKET_COUNT_TIOMEOUT_VALUE, 1);
+}
+
+int alloc_pan_packet_count_timer()
+{
+    struct sigaction sigact;
+
+    sigemptyset(&sigact.sa_mask);
+    sigact.sa_flags = SA_SIGINFO;
+
+    //register the Signal Handler
+    sigact.sa_sigaction = timeout_handler;
+
+    // Set up sigaction to catch signal first timer
+    if (sigaction(TIMER_PAN_PACKET_COUNT, &sigact, NULL) == -1)
+    {
+        ALOGE("alloc_pan_packet_count_timer, sigaction failed");
+        return -1;
+    }
+
+    // Create and set the timer when to expire
+    rtk_prof.timer_pan_packet_count= OsAllocateTimer(TIMER_PAN_PACKET_COUNT);
+
+    LogMsg("alloc pan packet");
+    return 0;
+}
+
+int free_pan_packet_count_timer()
+{
+    return OsFreeTimer(rtk_prof.timer_pan_packet_count);
+}
+
+int stop_pan_packet_count_timer()
+{
+    LogMsg("stop pan packet");
+    return OsStopTimer(rtk_prof.timer_pan_packet_count);
+}
+
+int start_pan_packet_count_timer()
+{
+    LogMsg("start pan packet");
+    return OsStartTimer(rtk_prof.timer_pan_packet_count, PACKET_COUNT_TIOMEOUT_VALUE, 1);
+}
+
+static int8_t psm_to_profile_index(uint16_t psm)
+{
+    switch (psm) {
+        case PSM_AVCTP:
+        case PSM_SDP:
+            return -1;   //ignore
+
+        case PSM_HID:
+        case PSM_HID_INT:
+            return profile_hid;
+
+        case PSM_AVDTP:
+            return profile_a2dp;
+
+        case PSM_PAN:
+        case PSM_OPP:
+        case PSM_FTP:
+        case PSM_BIP:
+        case PSM_RFCOMM:
+            return profile_pan;
+
+        default:
+            return profile_pan;
+    }
+}
+
+tRTK_CONN_PROF* find_connection_by_handle(tRTK_PROF* h5, uint16_t handle)
+{
+    RT_LIST_HEAD* head = &h5->conn_hash;
+    RT_LIST_ENTRY* iter = NULL, *temp = NULL;
+    tRTK_CONN_PROF* desc = NULL;
+
+    LIST_FOR_EACH_SAFELY(iter, temp, head)
+    {
+        desc = LIST_ENTRY(iter, tRTK_CONN_PROF, list);
+        if ((handle & 0xEFF) == desc->handle )  //only last 12 bit are meanful for hci handle
+        {
+            return desc;
+        }
+    }
+    return NULL;
+}
+
+tRTK_CONN_PROF* allocate_connection_by_handle(uint16_t handle)
+{
+    tRTK_CONN_PROF * phci_conn = NULL;
+    phci_conn = malloc(sizeof(tRTK_CONN_PROF));
+    if(phci_conn)
+        phci_conn->handle = handle;
+
+    return phci_conn;
+}
+
+void init_connection_hash(tRTK_PROF* h5)
+{
+    RT_LIST_HEAD* head = &h5->conn_hash;
+    ListInitializeHeader(head);
+}
+
+void add_connection_to_hash(tRTK_PROF* h5, tRTK_CONN_PROF* desc)
+{
+    RT_LIST_HEAD* head = &h5->conn_hash;
+    ListAddToTail(&desc->list, head);
+}
+
+void delete_connection_from_hash(tRTK_CONN_PROF* desc)
+{
+    if (desc)
+    {
+        ListDeleteNode(&desc->list);
+        free(desc);
+    }
+}
+
+void flush_connection_hash(tRTK_PROF* h5)
+{
+    RT_LIST_HEAD* head = &h5->conn_hash;
+    RT_LIST_ENTRY* iter = NULL, *temp = NULL;
+    tRTK_CONN_PROF* desc = NULL;
+
+    LIST_FOR_EACH_SAFELY(iter, temp, head)
+    {
+        desc = LIST_ENTRY(iter, tRTK_CONN_PROF, list);
+        if (desc)
+        {
+            ListDeleteNode(&desc->list);
+            free(desc);
+        }
+    }
+    //ListInitializeHeader(head);
+}
+
+void init_profile_hash(tRTK_PROF* h5)
+{
+    RT_LIST_HEAD* head = &h5->profile_list;
+    ListInitializeHeader(head);
+}
+
+uint8_t list_allocate_add(uint16_t handle, uint16_t psm, int8_t profile_index, uint16_t dcid, uint16_t scid)
+{
+    tRTK_PROF_INFO* pprof_info = NULL;
+
+    if(profile_index < 0)
+    {
+        ALOGE("PSM(0x%x) do not need parse", psm);
+        return FALSE;
+    }
+
+    pprof_info = malloc(sizeof(tRTK_PROF_INFO));
+    if (NULL == pprof_info)
+    {
+        ALOGE("list_allocate_add: allocate error");
+        return FALSE;
+    }
+
+    pprof_info->handle = handle;
+    pprof_info->psm = psm;
+    pprof_info->scid = scid;
+    pprof_info->dcid = dcid;
+    pprof_info->profile_index = profile_index;
+
+    ListAddToTail(&(pprof_info->list), &(rtk_prof.profile_list));
+
+    return TRUE;
+}
+
+void delete_profile_from_hash(tRTK_PROF_INFO* desc)
+{
+    LogMsg("delete profile for handle: %x, psm:%x, dcid:%x, scid:%x", desc->handle, desc->psm, desc->dcid, desc->scid);
+    if (desc)
+    {
+        ListDeleteNode(&desc->list);
+        free(desc);
+        desc = NULL;
+    }
+}
+
+void flush_profile_hash(tRTK_PROF* h5)
+{
+    RT_LIST_HEAD* head = &h5->profile_list;
+    RT_LIST_ENTRY* iter = NULL, *temp = NULL;
+    tRTK_PROF_INFO* desc = NULL;
+
+    pthread_mutex_lock(&rtk_prof.profile_mutex);
+    LIST_FOR_EACH_SAFELY(iter, temp, head)
+    {
+        desc = LIST_ENTRY(iter, tRTK_PROF_INFO, list);
+        delete_profile_from_hash(desc);
+    }
+    //ListInitializeHeader(head);
+    pthread_mutex_unlock(&rtk_prof.profile_mutex);
+}
+
+tRTK_PROF_INFO* find_profile_by_handle_scid(tRTK_PROF* h5, uint16_t handle, uint16_t scid)
+{
+    RT_LIST_HEAD* head = &h5->profile_list;
+    RT_LIST_ENTRY* iter = NULL, *temp = NULL;
+    tRTK_PROF_INFO* desc = NULL;
+
+    LIST_FOR_EACH_SAFELY(iter, temp, head)
+    {
+        desc = LIST_ENTRY(iter, tRTK_PROF_INFO, list);
+        if (((handle & 0xFFF) == desc->handle ) && (scid == desc->scid))
+        {
+            return desc;
+        }
+    }
+    return NULL;
+}
+
+tRTK_PROF_INFO* find_profile_by_handle_dcid(tRTK_PROF* h5, uint16_t handle, uint16_t dcid)
+{
+    RT_LIST_HEAD* head = &h5->profile_list;
+    RT_LIST_ENTRY* iter = NULL, *temp = NULL;
+    tRTK_PROF_INFO* desc = NULL;
+
+    LIST_FOR_EACH_SAFELY(iter, temp, head)
+    {
+        desc = LIST_ENTRY(iter, tRTK_PROF_INFO, list);
+        if (((handle & 0xFFF) == desc->handle ) && (dcid == desc->dcid))
+        {
+            return desc;
+        }
+    }
+    return NULL;
+}
+
+tRTK_PROF_INFO* find_profile_by_handle_dcid_scid(tRTK_PROF* h5, uint16_t handle, uint16_t dcid, uint16_t scid)
+{
+    RT_LIST_HEAD* head = &h5->profile_list;
+    RT_LIST_ENTRY* iter = NULL, *temp = NULL;
+    tRTK_PROF_INFO* desc = NULL;
+
+    LIST_FOR_EACH_SAFELY(iter, temp, head)
+    {
+        desc = LIST_ENTRY(iter, tRTK_PROF_INFO, list);
+        if (((handle & 0xFFF) == desc->handle ) && (dcid == desc->dcid) && (scid == desc->scid))
+        {
+            return desc;
+        }
+    }
+    return NULL;
+}
+
+void rtk_vendor_cmd_to_fw(uint16_t opcode, uint8_t parameter_len, uint8_t* parameter)
+{
+    HC_BT_HDR  *p_buf=NULL;
+
+    if(buffer_allocator)
+        p_buf = (HC_BT_HDR *) buffer_allocator->alloc(BT_HC_HDR_SIZE + HCI_CMD_PREAMBLE_SIZE + parameter_len);
+
+    if(NULL == p_buf)
+    {
+        ALOGE("rtk_vendor_cmd_to_fw: HC_BT_HDR alloc error");
+        return;
+    }
+    p_buf->event = MSG_STACK_TO_HC_HCI_CMD;
+    p_buf->offset = 0;
+    p_buf->len = HCI_CMD_PREAMBLE_SIZE + parameter_len;
+    p_buf->layer_specific = 0;
+
+    uint8_t *p = (uint8_t *) (p_buf + 1);
+    UINT16_TO_STREAM(p, opcode);
+    LogMsg("rtk_vendor_cmd_to_fw: Opcode:%x",opcode);
+
+    if(parameter_len > 0)
+    {
+        *p++ = parameter_len;
+        memcpy(p, parameter, parameter_len);
+    }
+    if(hci_interface)
+            hci_interface->transmit_command((BT_HDR *)p_buf, NULL,NULL,NULL);
+    return ;
+}
+
+void rtk_notify_profileinfo_to_fw()
+{
+    RT_LIST_HEAD* head = NULL;
+    RT_LIST_ENTRY* iter = NULL, *temp = NULL;
+    tRTK_CONN_PROF* hci_conn = NULL;
+    uint8_t  handle_number = 0;
+    uint32_t buffer_size = 0;
+    uint8_t *p_buf = NULL;
+
+    head = &rtk_prof.conn_hash;
+    LIST_FOR_EACH_SAFELY(iter, temp, head)
+    {
+        hci_conn = LIST_ENTRY(iter, tRTK_CONN_PROF, list);
+        if (hci_conn && hci_conn->profile_bitmap)
+            handle_number++;
+    }
+
+    buffer_size = 1 + handle_number*3 + 1;
+
+    if(buffer_allocator)
+        p_buf = (uint8_t *) buffer_allocator->alloc(buffer_size);
+
+    if(NULL == p_buf)
+    {
+        ALOGE("rtk_notify_profileinfo_to_fw: alloc error");
+        return;
+    }
+    uint8_t *p = (uint8_t *)p_buf;
+
+    LogMsg("rtk_notify_profileinfo_to_fw, BufferSize is %x", buffer_size);
+    *p++ = handle_number;
+    LogMsg("rtk_notify_profileinfo_to_fw, NumberOfHandles is %x", handle_number);
+    head = &rtk_prof.conn_hash;
+    LIST_FOR_EACH_SAFELY(iter, temp, head)
+    {
+        hci_conn = LIST_ENTRY(iter, tRTK_CONN_PROF, list);
+        if (hci_conn && hci_conn->profile_bitmap)
+        {
+            UINT16_TO_STREAM(p, hci_conn->handle);
+            LogMsg("rtk_notify_profileinfo_to_fw, handle is %x",hci_conn->handle);
+            *p++ = hci_conn->profile_bitmap;
+            LogMsg("rtk_notify_profileinfo_to_fw, profile_bitmap is %x",hci_conn->profile_bitmap);
+            handle_number --;
+        }
+        if(0 == handle_number)
+            break;
+    }
+
+    *p++ = rtk_prof.profile_status;
+    LogMsg("rtk_notify_profileinfo_to_fw, profile_status is %x",rtk_prof.profile_status);
+
+    rtk_vendor_cmd_to_fw(HCI_VENDOR_SET_PROFILE_REPORT_COMMAND, buffer_size, p_buf);
+
+    if(buffer_allocator)
+       buffer_allocator->free(p_buf);
+
+    return ;
+}
+
+void update_profile_state(uint8_t profile_index, uint8_t is_busy)
+{
+    uint8_t need_update = FALSE;
+
+    if((rtk_prof.profile_bitmap & BIT(profile_index)) == 0)
+    {
+        ALOGE("update_profile_state: ERROR!!! profile(Index: %x) does not exist", profile_index);
+        return;
+    }
+
+    if(is_busy)
+    {
+        if((rtk_prof.profile_status & BIT(profile_index)) == 0)
+        {
+            need_update = TRUE;
+            rtk_prof.profile_status |= BIT(profile_index);
+        }
+    }
+    else
+    {
+        if((rtk_prof.profile_status & BIT(profile_index)) > 0)
+        {
+            need_update = TRUE;
+            rtk_prof.profile_status &= ~(BIT(profile_index));
+        }
+    }
+
+    if(need_update)
+    {
+        LogMsg("update_profile_state, rtk_prof.profie_bitmap = %x", rtk_prof.profile_bitmap);
+        LogMsg("update_profile_state, rtk_prof.profile_status = %x", rtk_prof.profile_status);
+        rtk_notify_profileinfo_to_fw();
+    }
+}
+
+void rtk_check_setup_timer(int8_t profile_index)
+{
+    if(profile_index == profile_a2dp) {
+        rtk_prof.a2dp_packet_count = 0;
+        start_a2dp_packet_count_timer();
+    }
+    if(profile_index == profile_pan) {
+        rtk_prof.pan_packet_count = 0;
+        start_pan_packet_count_timer();
+    }
+    //hogp & voice share one timer now
+    if((profile_index == profile_hogp) || (profile_index == profile_voice)) {
+        if((0 == rtk_prof.profile_refcount[profile_hogp])
+                && (0 == rtk_prof.profile_refcount[profile_voice])) {
+            rtk_prof.hogp_packet_count = 0;
+            rtk_prof.voice_packet_count = 0;
+            start_hogp_packet_count_timer();
+        }
+    }
+}
+
+void rtk_check_del_timer(int8_t profile_index)
+{
+    if(profile_a2dp == profile_index)
+    {
+        rtk_prof.a2dp_packet_count = 0;
+        stop_a2dp_packet_count_timer();
+    }
+    if(profile_pan == profile_index)
+    {
+        rtk_prof.pan_packet_count = 0;
+        stop_pan_packet_count_timer();
+    }
+    if(profile_hogp == profile_index)
+    {
+        rtk_prof.hogp_packet_count = 0;
+        if(rtk_prof.profile_refcount[profile_voice] == 0)
+            stop_hogp_packet_count_timer();
+    }
+    if(profile_voice == profile_index)
+    {
+        rtk_prof.voice_packet_count = 0;
+        if(rtk_prof.profile_refcount[profile_hogp] == 0)
+            stop_hogp_packet_count_timer();
+    }
+}
+void update_profile_connection(tRTK_CONN_PROF * phci_conn, int8_t profile_index, uint8_t is_add)
+{
+    uint8_t need_update = FALSE;
+
+    LogMsg("update_profile_connection: is_add=%d, psm_index=%d", is_add, profile_index);
+    if (profile_index < 0)
+        return;
+
+    if(is_add)
+    {
+        if(rtk_prof.profile_refcount[profile_index] == 0)
+        {
+            need_update = TRUE;
+            rtk_prof.profile_bitmap |= BIT(profile_index);
+
+            //SCO is always busy
+            if(profile_index == profile_sco)
+                rtk_prof.profile_status |= BIT(profile_index);
+
+            rtk_check_setup_timer(profile_index);
+        }
+        rtk_prof.profile_refcount[profile_index]++;
+
+        if(0 == phci_conn->profile_refcount[profile_index])
+        {
+            need_update = TRUE;
+            phci_conn->profile_bitmap |= BIT(profile_index);
+        }
+        phci_conn->profile_refcount[profile_index]++;
+    }
+    else
+    {
+        rtk_prof.profile_refcount[profile_index]--;
+        LogMsg("for test: --, rtk_prof.profile_refcount[%x] = %x", profile_index, rtk_prof.profile_refcount[profile_index]);
+        if(rtk_prof.profile_refcount[profile_index] == 0)
+        {
+            need_update = TRUE;
+            rtk_prof.profile_bitmap &= ~(BIT(profile_index));
+
+            //If profile does not exist, Status is meaningless
+            rtk_prof.profile_status &= ~(BIT(profile_index));
+            rtk_check_del_timer(profile_index);
+        }
+
+        phci_conn->profile_refcount[profile_index]--;
+        if(0 == phci_conn->profile_refcount[profile_index])
+        {
+            need_update = TRUE;
+            phci_conn->profile_bitmap &= ~(BIT(profile_index));
+
+            //clear profile_hid_interval if need
+            if(profile_hid == profile_index)
+            {
+                if((phci_conn->profile_bitmap &(BIT(profile_hid_interval))))
+                {
+                    phci_conn->profile_bitmap &= ~(BIT(profile_hid_interval));
+                    rtk_prof.profile_refcount[profile_hid_interval]--;
+                }
+            }
+        }
+    }
+
+    if(need_update)
+    {
+        LogMsg("update_profile_connection: rtk_h5.profile_bitmap = %x", rtk_prof.profile_bitmap);
+        rtk_notify_profileinfo_to_fw();
+    }
+}
+
+void update_hid_active_state(uint16_t handle, uint16_t interval)
+{
+    uint8_t need_update = 0;
+    LogMsg("update_hid_active_state: handle = %x, interval = 0x%x", handle, interval);
+    tRTK_CONN_PROF *phci_conn = find_connection_by_handle(&rtk_prof, handle);
+
+    if(phci_conn == NULL)
+        return;
+
+    if(((phci_conn->profile_bitmap)&(BIT(profile_hid))) == 0)
+    {
+        LogMsg("hid not connected in the handle, nothing to be down");
+        return;
+    }
+
+    if(interval < 60)
+    {
+        if((phci_conn->profile_bitmap &(BIT(profile_hid_interval))) == 0)
+        {
+            need_update = 1;
+            phci_conn->profile_bitmap |= BIT(profile_hid_interval);
+
+            rtk_prof.profile_refcount[profile_hid_interval]++;
+            if(rtk_prof.profile_refcount[profile_hid_interval] == 1)
+                rtk_prof.profile_status |= BIT(profile_hid);
+        }
+    }
+    else
+    {
+        if((phci_conn->profile_bitmap &(BIT(profile_hid_interval))))
+        {
+            need_update = 1;
+            phci_conn->profile_bitmap &= ~(BIT(profile_hid_interval));
+
+            rtk_prof.profile_refcount[profile_hid_interval]--;
+            if(rtk_prof.profile_refcount[profile_hid_interval] == 0)
+                rtk_prof.profile_status &= ~(BIT(profile_hid));
+        }
+    }
+
+    if(need_update)
+        rtk_notify_profileinfo_to_fw();
+}
+uint8_t handle_l2cap_con_req(uint16_t handle, uint16_t psm, uint16_t scid, uint8_t direction)
+{
+    uint8_t status = FALSE;
+    tRTK_PROF_INFO* prof_info = NULL;
+
+    int8_t profile_index = psm_to_profile_index(psm);
+
+    if(profile_index < 0) {
+        LogMsg("PSM(0x%x) do not need parse", psm);
+        return status;
+    }
+
+    pthread_mutex_lock(&rtk_prof.profile_mutex);
+    if(direction)//1: out
+        prof_info = find_profile_by_handle_scid(&rtk_prof, handle, scid);
+    else // 0:in
+        prof_info = find_profile_by_handle_dcid(&rtk_prof, handle, scid);
+
+    if(prof_info)
+    {
+        LogMsg("handle_l2cap_con_req: This profile is already exist!!!");
+        pthread_mutex_unlock(&rtk_prof.profile_mutex);
+        return status;
+    }
+
+    if(direction)//1: out
+        status = list_allocate_add(handle, psm, profile_index, 0, scid);
+    else // 0:in
+        status = list_allocate_add(handle, psm, profile_index, scid, 0);
+
+    pthread_mutex_unlock(&rtk_prof.profile_mutex);
+
+    if (!status)
+        ALOGE("handle_l2cap_con_req: list_allocate_add failed!");
+
+    return status;
+}
+
+uint8_t handle_l2cap_con_rsp(uint16_t handle, uint16_t dcid, uint16_t scid, uint8_t direction, uint8_t result)
+{
+    tRTK_PROF_INFO* prof_info = NULL;
+
+    pthread_mutex_lock(&rtk_prof.profile_mutex);
+    if(!direction)//0, in
+        prof_info = find_profile_by_handle_scid(&rtk_prof, handle, scid);
+    else //1, out
+        prof_info = find_profile_by_handle_dcid(&rtk_prof, handle, scid);
+
+    if (!prof_info)
+    {
+        //LogMsg("handle_l2cap_con_rsp: prof_info Not Find!!");
+        pthread_mutex_unlock(&rtk_prof.profile_mutex);
+        return 0;
+    }
+
+    if(!result)//success
+    {
+        LogMsg("l2cap connection success, update connection");
+        if(!direction)//0, in
+            prof_info->dcid = dcid;
+        else//1, out
+            prof_info->scid = dcid;
+
+        tRTK_CONN_PROF *phci_conn = find_connection_by_handle(&rtk_prof, handle);
+        if(phci_conn)
+            update_profile_connection(phci_conn, prof_info->profile_index, TRUE);
+    }
+
+    pthread_mutex_unlock(&rtk_prof.profile_mutex);
+    return 1;
+}
+
+uint8_t handle_l2cap_discon_req(uint16_t handle, uint16_t dcid, uint16_t scid, uint8_t direction)
+{
+    tRTK_PROF_INFO* prof_info = NULL;
+    LogMsg("l2cap_discon_req, handle = %x, dcid = %x, scid = %x, direction = %x", handle, dcid, scid, direction);
+    pthread_mutex_lock(&rtk_prof.profile_mutex);
+    if(!direction)//0: in
+        prof_info = find_profile_by_handle_dcid_scid(&rtk_prof, handle, scid, dcid);
+    else //1: out
+        prof_info = find_profile_by_handle_dcid_scid(&rtk_prof, handle, dcid, scid);
+
+    if (!prof_info)
+    {
+        //LogMsg("handle_l2cap_discon_req: prof_info Not Find!");
+        pthread_mutex_unlock(&rtk_prof.profile_mutex);
+        return 0;
+    }
+
+    tRTK_CONN_PROF *phci_conn = find_connection_by_handle(&rtk_prof, handle);
+    if(NULL == phci_conn)
+    {
+        pthread_mutex_unlock(&rtk_prof.profile_mutex);
+        return 0;
+    }
+
+    update_profile_connection(phci_conn, prof_info->profile_index, FALSE);
+    delete_profile_from_hash(prof_info);
+    pthread_mutex_unlock(&rtk_prof.profile_mutex);
+
+    return 1;
+}
+
+void packets_count(uint16_t handle, uint16_t scid, uint16_t length, uint8_t direction)
+{
+    tRTK_PROF_INFO* prof_info = NULL;
+
+    tRTK_CONN_PROF* hci_conn = find_connection_by_handle(&rtk_prof, handle);
+    if(NULL == hci_conn)
+        return;
+
+    if(0 == hci_conn->type)//l2cap
+    {
+        if(!direction)    //0: in
+            prof_info = find_profile_by_handle_scid(&rtk_prof, handle, scid);
+        else //1: out
+            prof_info = find_profile_by_handle_dcid(&rtk_prof, handle, scid);
+
+        if(!prof_info)
+        {
+            //LogMsg("packets_count: prof_info Not Find!");
+            //ALOGE("handle=%x, scid=%x, length=%d,",handle, scid, length);
+            return ;
+        }
+
+        if((prof_info->profile_index == profile_a2dp) && (length > 100))//avdtp media data
+        {
+            if(!is_profile_busy(profile_a2dp))
+                update_profile_state(profile_a2dp, TRUE);
+            rtk_prof.a2dp_packet_count++;
+        }
+
+        if(prof_info->profile_index == profile_pan)
+            rtk_prof.pan_packet_count++;
+    }
+}
+
+static void timeout_handler(int signo, siginfo_t * info, void *context)
+{
+    if (signo == TIMER_POLLING)
+    {
+        LogMsg("polling timeout");
+        if(rtk_prof.polling_enable)
+        {
+            uint8_t temp_cmd[1];
+            temp_cmd[0] = HCI_VENDOR_SUB_CMD_BT_REPORT_CONN_SCO_INQ_INFO;
+            rtk_vendor_cmd_to_fw(HCI_VENDOR_MAILBOX_CMD, 1, temp_cmd);
+        }
+    }
+    else if (signo == TIMER_A2DP_PACKET_COUNT)
+    {
+        LogMsg("count a2dp packet timeout, a2dp_packet_count = %d",rtk_prof.a2dp_packet_count);
+        if(rtk_prof.a2dp_packet_count == 0)
+        {
+            if(is_profile_busy(profile_a2dp))
+            {
+                LogMsg("timeout_handler: a2dp busy->idle!");
+                update_profile_state(profile_a2dp, FALSE);
+            }
+        }
+        rtk_prof.a2dp_packet_count = 0;
+    }
+    else if (signo == TIMER_HOGP_PACKET_COUNT)
+    {
+        LogMsg("count hogp packet timeout, hogp_packet_count = %d",rtk_prof.hogp_packet_count);
+        if(rtk_prof.hogp_packet_count == 0)
+        {
+            if(is_profile_busy(profile_hogp))
+            {
+                LogMsg("timeout_handler: hogp busy->idle!");
+                update_profile_state(profile_hogp, FALSE);
+            }
+        }
+        rtk_prof.hogp_packet_count = 0;
+
+        LogMsg("count hogp packet timeout, voice_packet_count = %d",rtk_prof.voice_packet_count);
+        if(rtk_prof.voice_packet_count == 0)
+        {
+            if(is_profile_busy(profile_voice))
+            {
+                LogMsg("timeout_handler: voice busy->idle!");
+                update_profile_state(profile_voice, FALSE);
+            }
+        }
+        rtk_prof.voice_packet_count = 0;
+    }
+    else if (signo == TIMER_PAN_PACKET_COUNT)
+    {
+        LogMsg("count pan packet timeout, pan_packet_count = %d",rtk_prof.pan_packet_count);
+        if(rtk_prof.pan_packet_count < PAN_PACKET_COUNT)
+        {
+            if(is_profile_busy(profile_pan))
+            {
+                LogMsg("timeout_handler: pan busy->idle!");
+                update_profile_state(profile_pan, FALSE);
+            }
+        }
+        else
+        {
+            if(!is_profile_busy(profile_pan))
+            {
+                LogMsg("timeout_handler: pan idle->busy!");
+                update_profile_state(profile_pan, TRUE);
+            }
+        }
+        rtk_prof.pan_packet_count = 0;
+    }
+    else
+    {
+        ALOGE("rtk_parse_data timer unspported signo(%d)", signo);
+    }
+}
+
+#if 0
+int netlink_send(int nlsk, char *buffer)
+{
+    struct nlmsghdr* nlhdr;
+    struct iovec iov;
+    struct msghdr msg;
+    struct sockaddr_nl nladdr;
+
+    if(nlsk <= 0)
+        return -1;
+
+    memset(&msg, 0 ,sizeof(struct msghdr));
+    memset(&nladdr, 0 ,sizeof(struct sockaddr_nl));
+
+    nlhdr = (struct nlmsghdr *)malloc(NLMSG_SPACE(strlen(buffer) + 1));
+    strcpy(NLMSG_DATA(nlhdr),buffer);
+
+    nlhdr->nlmsg_len = NLMSG_LENGTH(strlen(buffer) + 1);
+    nlhdr->nlmsg_pid = getpid(); //sender pid
+    nlhdr->nlmsg_flags = NLM_F_REQUEST;
+    nlhdr->nlmsg_type = NLMSG_MIN_TYPE;
+
+    nladdr.nl_family = AF_NETLINK;
+    nladdr.nl_pid = 0; //send to kernel
+    nladdr.nl_groups = 0;
+
+    iov.iov_base = (void *)nlhdr;
+    iov.iov_len = nlhdr->nlmsg_len;
+
+    msg.msg_iov = &iov;
+    msg.msg_iovlen = 1;
+    msg.msg_name = (void *)&(nladdr);
+    msg.msg_namelen = sizeof(nladdr);
+
+    return sendmsg(nlsk, &msg, 0);
+}
+#endif
+
+int udpsocket_send(char *tx_msg, int msg_size)
+{
+    int n; /* message byte size */
+
+    LogMsg("udpsocket_send tx_msg:%s",tx_msg);
+    n = sendto(rtk_prof.udpsocket, tx_msg, msg_size, MSG_DONTWAIT, (struct sockaddr *) &rtk_prof.client_addr, sizeof(rtk_prof.client_addr));
+    if (n < 0)
+    {
+        ALOGE("ERROR in sendto");
+        return -1;
+    }
+    return 0;
+}
+
+int udpsocket_recv(uint8_t *recv_msg, uint8_t *msg_size)
+{
+    char buf[MAX_PAYLOAD];  /* message buf */
+    int n;                  /* message byte size */
+    struct sockaddr_in recv_addr;
+    socklen_t clientlen = sizeof(recv_addr);
+    struct pollfd pfd = {
+        .events = POLLPRI | POLLIN,
+        .revents = 0,
+        .fd = rtk_prof.udpsocket
+    };
+
+    bzero(buf, MAX_PAYLOAD);
+
+    while (poll(&pfd, 1, 1000) <= 0 && rtk_prof.udpsocket_recv_thread_running > 0) {
+        if (rtk_prof.udpsocket_recv_thread_running ==0) {
+            LogMsg("SIGUSR2 should have caught us before this");
+            return -1;
+        }
+    }
+
+
+    n = recvfrom(rtk_prof.udpsocket, buf, MAX_PAYLOAD, MSG_DONTWAIT, (struct sockaddr *) &recv_addr, &clientlen);
+    if (n < 0) {
+        ALOGE("ERROR in recvfrom");
+        return -1;
+    } else {
+        *msg_size = n;
+        memcpy(recv_msg,buf,n);
+    }
+    return 0;
+}
+
+void rtk_notify_extension_version_to_wifi()
+{
+    uint8_t para_length = 2;
+    char p_buf[para_length + HCI_CMD_PREAMBLE_SIZE];
+
+    if(!rtk_prof.wifi_on)
+        return;
+
+    char *p = p_buf;
+    UINT16_TO_STREAM(p, HCI_OP_HCI_EXTENSION_VERSION_NOTIFY);
+    *p++ = para_length;
+    UINT16_TO_STREAM(p, HCI_EXTENSION_VERSION);
+    LogMsg("extension version is 0x%x", HCI_EXTENSION_VERSION);
+    if(udpsocket_send(p_buf, para_length + HCI_CMD_PREAMBLE_SIZE) < 0)
+        ALOGE("rtk_notify_extension_version_to_wifi: udpsocket send error");
+}
+
+void rtk_notify_btpatch_version_to_wifi()
+{
+    uint8_t para_length = 4;
+    char p_buf[para_length + HCI_CMD_PREAMBLE_SIZE];
+
+    if(!rtk_prof.wifi_on)
+        return;
+
+    char *p = p_buf;
+    UINT16_TO_STREAM(p, HCI_OP_HCI_BT_PATCH_VER_NOTIFY);
+    *p++ = para_length;
+    UINT16_TO_STREAM(p, rtk_prof.hci_reversion);
+    UINT16_TO_STREAM(p, rtk_prof.lmp_subversion);
+    LogMsg("btpatch_version, length is 0x%x, hci_reversion is 0x%x, lmp_subversion is %x", para_length, rtk_prof.hci_reversion, rtk_prof.lmp_subversion);
+
+    if(udpsocket_send(p_buf, para_length + HCI_CMD_PREAMBLE_SIZE) < 0)
+        ALOGE("rtk_notify_btpatch_version_to_wifi: udpsocket send error");
+}
+
+void rtk_notify_afhmap_to_wifi()
+{
+    uint8_t para_length = 13;
+    char p_buf[para_length + HCI_CMD_PREAMBLE_SIZE];
+
+    if(!rtk_prof.wifi_on)
+        return;
+
+    char *p = p_buf;
+    UINT16_TO_STREAM(p, HCI_OP_HCI_BT_AFH_MAP_NOTIFY);
+    *p++ = para_length;
+    *p++ = rtk_prof.piconet_id;
+    *p++ = rtk_prof.mode;
+    *p++ = 10;
+    memcpy(p, rtk_prof.afh_map, 10);
+
+    LogMsg("afhmap, piconet_id is 0x%x, map type is 0x%x", rtk_prof.piconet_id, rtk_prof.mode);
+
+    if(udpsocket_send(p_buf, para_length + HCI_CMD_PREAMBLE_SIZE) < 0)
+        ALOGE("rtk_notify_afhmap_to_wifi: udpsocket send error");
+}
+
+void rtk_notify_btcoex_to_wifi(uint8_t opcode, uint8_t status)
+{
+    uint8_t para_length = 2;
+    char p_buf[para_length + HCI_CMD_PREAMBLE_SIZE];
+
+    if(!rtk_prof.wifi_on)
+        return;
+
+    char *p = p_buf;
+    UINT16_TO_STREAM(p, HCI_OP_HCI_BT_COEX_NOTIFY);
+    *p++ = para_length;
+    *p++ = opcode;
+    if(!status)
+        *p++ = 0;
+    else
+        *p++ = 1;
+
+    LogMsg("btcoex, opcode is 0x%x, status is 0x%x", opcode, status);
+
+    if(udpsocket_send(p_buf, para_length + HCI_CMD_PREAMBLE_SIZE) < 0)
+        ALOGE("rtk_notify_btcoex_to_wifi: udpsocket send error");
+}
+
+void rtk_notify_btoperation_to_wifi(uint8_t operation, uint8_t append_data_length, uint8_t *append_data)
+{
+    uint8_t para_length = 3 + append_data_length;
+    char p_buf[para_length + HCI_CMD_PREAMBLE_SIZE];
+
+    if(!rtk_prof.wifi_on)
+        return;
+
+    char *p = p_buf;
+    UINT16_TO_STREAM(p, HCI_OP_BT_OPERATION_NOTIFY);
+    *p++ = para_length;
+    *p++ = operation;
+    *p++ = append_data_length;
+    if(append_data_length)
+        memcpy(p, append_data, append_data_length);
+
+    LogMsg("btoperation, opration is 0x%x, append_data_length is 0x%x", operation, append_data_length);
+
+    if(udpsocket_send(p_buf, para_length + HCI_CMD_PREAMBLE_SIZE) < 0)
+        ALOGE("rtk_notify_btoperation_to_wifi: udpsocket send error");
+}
+
+void rtk_notify_info_to_wifi(uint8_t reason, uint8_t length, uint8_t* report_info)
+{
+    uint8_t para_length = 4 + length;
+    char p_buf[para_length + HCI_CMD_PREAMBLE_SIZE];
+
+    if(!rtk_prof.wifi_on)
+        return;
+
+    char *p = p_buf;
+    UINT16_TO_STREAM(p, HCI_OP_HCI_BT_INFO_NOTIFY);
+    *p++ = para_length;
+    *p++ = rtk_prof.polling_enable;
+    *p++ = rtk_prof.polling_interval;
+    *p++ = reason;
+    *p++ = length;
+
+    if(length)
+        memcpy(p, report_info, length);
+
+    LogMsg("bt info, length is 0x%x, polling_enable is 0x%x, poiiling_interval is %x",para_length, rtk_prof.polling_enable, rtk_prof.polling_interval);
+    LogMsg("bt info, reason is 0x%x, info length is 0x%x", reason, length);
+    if(length)
+    {
+        tHCI_LINKSTATUS_REPORT *report = (tHCI_LINKSTATUS_REPORT *)report_info;
+        LogMsg("bt info, cmd_index is %x", report->cmd_index);
+        LogMsg("bt info, cmd_length is %x", report->cmd_length);
+        LogMsg("bt info, link_status is %x", report->link_status);
+        LogMsg("bt info, retry_cnt is %x", report->retry_cnt);
+        LogMsg("bt info, rssi is %x", report->rssi);
+        LogMsg("bt info, mailbox_info is %x", report->mailbox_info);
+        LogMsg("bt info, acl_throughtput is %x", report->acl_throughput);
+
+        LogMsg("bt info, bitpool is %x", report->bitpool);
+
+    }
+
+    if(udpsocket_send(p_buf, para_length + HCI_CMD_PREAMBLE_SIZE) < 0)
+        ALOGE("rtk_notify_info_to_wifi: udpsocket send error");
+}
+
+void rtk_notify_regester_to_wifi(uint8_t* reg_value)
+{
+    uint8_t para_length = 9;
+    char p_buf[para_length + HCI_CMD_PREAMBLE_SIZE];
+
+    if(!rtk_prof.wifi_on)
+        return;
+
+    char *p = p_buf;
+    UINT16_TO_STREAM(p, HCI_OP_HCI_BT_REGISTER_VALUE_NOTIFY);
+    *p++ = para_length;
+    memcpy(p, reg_value, para_length);
+
+    tHCI_RETURN_PARAMETER_MAILBOX_REGISTER *reg = (tHCI_RETURN_PARAMETER_MAILBOX_REGISTER *)reg_value;
+    LogMsg("bt register, register type is %x", reg->type);
+    LogMsg("bt register, register offset is %x", reg->offset);
+    LogMsg("bt register, register value is %x", reg->value);
+
+    if(udpsocket_send(p_buf, para_length + HCI_CMD_PREAMBLE_SIZE) < 0)
+        ALOGE("rtk_notify_regester_to_wifi: udpsocket send error");
+}
+
+static void rtk_handle_bt_info_control(uint8_t* p)
+{
+    tHCI_EVENT_BT_INFO_CONTROL*  info = (tHCI_EVENT_BT_INFO_CONTROL*)p;
+    uint8_t temp_cmd[3];
+
+    LogMsg("rtk_prof.polling_enable is %x",rtk_prof.polling_enable);
+    LogMsg("receive bt info control event from wifi, polling enable is 0x%x, polling time is 0x%x, auto report is 0x%x",
+                    info->polling_enable, info->polling_time, info->autoreport_enable);
+
+    if(info->polling_enable && !rtk_prof.polling_enable)
+        start_polling_timer(info->polling_time * 1000);
+
+    if(!info->polling_enable && rtk_prof.polling_enable)
+        stop_polling_timer();
+
+    rtk_prof.polling_enable = info->polling_enable;
+    rtk_prof.polling_interval = info->polling_time;
+    rtk_prof.autoreport = info->autoreport_enable;
+
+    temp_cmd[0] = HCI_VENDOR_SUB_CMD_BT_AUTO_REPORT_ENABLE;
+    temp_cmd[1] = 1;
+    temp_cmd[2] = info->autoreport_enable;
+    rtk_vendor_cmd_to_fw(HCI_VENDOR_MAILBOX_CMD, 3, temp_cmd);
+
+    rtk_notify_info_to_wifi(HOST_RESPONSE, 0, NULL);
+}
+
+static void rtk_handle_bt_coex_control(uint8_t* p)
+{
+    uint8_t opcode = *p++;
+    LogMsg("receive bt coex control event from wifi, opration is 0x%x", opcode);
+    switch (opcode)
+    {
+        case BT_PATCH_VERSION_QUERY:
+        {
+            rtk_notify_btpatch_version_to_wifi();
+            break;
+        }
+
+        case IGNORE_WLAN_ACTIVE_CONTROL:
+        {
+            uint8_t value = *p++;
+            uint8_t temp_cmd[3];
+            temp_cmd[0] = HCI_VENDOR_SUB_CMD_BT_ENABLE_IGNORE_WLAN_ACT_CMD;
+            temp_cmd[1] = 1;
+            temp_cmd[2] = value;
+            rtk_vendor_cmd_to_fw(HCI_VENDOR_MAILBOX_CMD, 3, temp_cmd);
+            break;
+        }
+
+        case LNA_CONSTRAIN_CONTROL:
+        {
+            uint8_t value = *p++;
+            uint8_t temp_cmd[3];
+            temp_cmd[0] = HCI_VENDOR_SUB_CMD_SET_BT_LNA_CONSTRAINT;
+            temp_cmd[1] = 1;
+            temp_cmd[2] = value;
+            rtk_vendor_cmd_to_fw(HCI_VENDOR_MAILBOX_CMD, 3, temp_cmd);
+            break;
+        }
+
+        case BT_POWER_DECREASE_CONTROL:
+        {
+            uint8_t power_decrease = *p++;
+            uint8_t temp_cmd[3];
+            temp_cmd[0] = HCI_VENDOR_SUB_CMD_WIFI_FORCE_TX_POWER_CMD;
+            temp_cmd[1] = 1;
+            temp_cmd[2] = power_decrease;
+            rtk_vendor_cmd_to_fw(HCI_VENDOR_MAILBOX_CMD, 3, temp_cmd);
+            break;
+        }
+
+        case BT_PSD_MODE_CONTROL:
+        {
+            uint8_t psd_mode = *p++;
+            uint8_t temp_cmd[3];
+            temp_cmd[0] = HCI_VENDOR_SUB_CMD_SET_BT_PSD_MODE;
+            temp_cmd[1] = 1;
+            temp_cmd[2] = psd_mode;
+            rtk_vendor_cmd_to_fw(HCI_VENDOR_MAILBOX_CMD, 3, temp_cmd);
+            break;
+        }
+
+        case WIFI_BW_CHNL_NOTIFY:
+        {
+            uint8_t temp_cmd[5];
+            temp_cmd[0] = HCI_VENDOR_SUB_CMD_WIFI_CHANNEL_AND_BANDWIDTH_CMD;
+            temp_cmd[1] = 3;
+            memcpy(temp_cmd+2, p, 3);//wifi_state, wifi_centralchannel, chnnels_btnotuse
+            rtk_vendor_cmd_to_fw(HCI_VENDOR_MAILBOX_CMD, 5, temp_cmd);
+            break;
+        }
+
+        case QUERY_BT_AFH_MAP:
+        {
+            rtk_prof.piconet_id = *p++;
+            rtk_prof.mode = *p++;
+            uint8_t temp_cmd[4];
+            temp_cmd[0] = HCI_VENDOR_SUB_CMD_GET_AFH_MAP_L;
+            temp_cmd[1] = 2;
+            temp_cmd[2] = rtk_prof.piconet_id;
+            temp_cmd[3] = rtk_prof.mode;
+            rtk_vendor_cmd_to_fw(HCI_VENDOR_MAILBOX_CMD, 4, temp_cmd);
+            break;
+        }
+
+        case BT_REGISTER_ACCESS:
+        {
+            uint8_t access_type = *p++;
+            if(access_type == 0) //read
+            {
+                uint8_t temp_cmd[7];
+                temp_cmd[0] = HCI_VENDOR_SUB_CMD_RD_REG_REQ;
+                temp_cmd[1] = 5;
+                temp_cmd[2] = *p++;
+                memcpy(temp_cmd+3, p, 4);
+                rtk_vendor_cmd_to_fw(HCI_VENDOR_MAILBOX_CMD, 7, temp_cmd);
+            }
+            else //write
+            {
+                uint8_t temp_cmd[11];
+                temp_cmd[0] = HCI_VENDOR_SUB_CMD_RD_REG_REQ;
+                temp_cmd[1] = 5;
+                temp_cmd[2] = *p++;
+                memcpy(temp_cmd+3, p, 8);
+                rtk_vendor_cmd_to_fw(HCI_VENDOR_MAILBOX_CMD, 11, temp_cmd);
+            }
+            break;
+        }
+
+        default:
+            break;
+    }
+}
+
+void rtk_handle_event_from_wifi(uint8_t* msg)
+{
+    uint8_t *p = msg;
+    uint8_t event_code = *p++;
+
+    if(memcmp(msg, invite_rsp, sizeof(invite_rsp)) == 0)
+    {
+#if 0
+        LogMsg("receive invite rsp from wifi, close netlink socket if needed");
+        if(rtk_prof.nlsocket > 0)
+        {
+            close(rtk_prof.nlsocket);
+            LogMsg("close netlink socket %d", rtk_prof.nlsocket);
+        }
+#endif
+        LogMsg("receive invite rsp from wifi, wifi is already on");
+        rtk_prof.wifi_on = 1;
+        rtk_notify_extension_version_to_wifi();
+    }
+
+    if(memcmp(msg, attend_req, sizeof(attend_req)) == 0)
+    {
+        LogMsg("receive attend req from wifi, wifi turn on");
+        rtk_prof.wifi_on = 1;
+        udpsocket_send(attend_ack, sizeof(attend_ack));
+        rtk_notify_extension_version_to_wifi();
+    }
+
+    if(memcmp(msg, wifi_leave, sizeof(wifi_leave)) == 0)
+    {
+        LogMsg("receive wifi leave from wifi, wifi turn off");
+        rtk_prof.wifi_on = 0;
+        udpsocket_send(leave_ack, sizeof(leave_ack));
+        if(rtk_prof.polling_enable)
+        {
+            rtk_prof.polling_enable = 0;
+            stop_polling_timer();
+        }
+    }
+
+    if(memcmp(msg, leave_ack, sizeof(leave_ack)) == 0)
+    {
+        LogMsg("receive leave ack from wifi");
+    }
+
+    if(event_code == 0xFE)
+    {
+        uint8_t extension_event = *p++;
+        switch(extension_event)
+        {
+            case  RTK_HS_EXTENSION_EVENT_WIFI_SCAN:
+            {
+                uint8_t operation = *p;
+                LogMsg("receive wifi scan notify evnet from wifi, operation is 0x%x", operation);
+                break;
+            }
+
+            case  RTK_HS_EXTENSION_EVENT_HCI_BT_INFO_CONTROL:
+            {
+                rtk_handle_bt_info_control(p);
+                break;
+            }
+
+            case RTK_HS_EXTENSION_EVENT_HCI_BT_COEX_CONTROL:
+            {
+                rtk_handle_bt_coex_control(p);
+                break;
+            }
+
+            default:
+                break;
+        }
+    }
+
+    if(event_code == 0x0E)
+    {
+        uint16_t wifi_opcode;
+        uint8_t op_status;
+        p += 2;//length, number of complete packets
+        STREAM_TO_UINT16(wifi_opcode, p);
+        op_status = *p;
+        LogMsg("receive command complete event from wifi, op code is 0x%x, status is 0x%x", wifi_opcode, op_status);
+    }
+}
+
+static void udpsocket_receive_thread_exit_handler(int sig)
+{
+    LogMsg("USR2, this signal is %d \n", sig);
+    usleep(100);
+    pthread_exit(0);
+}
+
+static void udpsocket_receive_thread(void *arg)
+{
+    uint8_t msg_recv[MAX_PAYLOAD];
+    uint8_t recv_length;
+    struct sigaction actions;
+
+    memset(&actions, 0, sizeof(actions));
+    sigemptyset(&actions.sa_mask);
+    actions.sa_flags = 0;
+    actions.sa_handler = udpsocket_receive_thread_exit_handler;
+
+
+    LogMsg("udpsocket_receive_thread started");
+    prctl(PR_SET_NAME, (unsigned long)"udpsocket_receive_thread", 0, 0, 0);
+
+    while(rtk_prof.udpsocket_recv_thread_running)
+    {
+        memset(msg_recv, 0 , MAX_PAYLOAD);
+        udpsocket_recv(msg_recv, &recv_length);
+         if (udpsocket_recv(msg_recv, &recv_length) == 0)
+            rtk_handle_event_from_wifi(msg_recv);
+    }
+
+    LogMsg("udpsocket_receive_thread exiting");
+    pthread_exit(NULL);
+}
+
+int create_udpsocket_socket()
+{
+    int portno = CONNECT_PORT;
+    int optval; /* flag value for setsockopt */
+
+    LogMsg("create udpsocket port: %d\n", portno);
+
+    pthread_mutex_lock(&rtk_prof.udpsocket_mutex);
+
+    pthread_attr_t thread_attr_data;
+    if (rtk_prof.udpsocket_recv_thread_running)
+    {
+        ALOGE("udp_receive_thread already exit");
+        pthread_mutex_unlock(&rtk_prof.udpsocket_mutex);
+        return -1 ;
+    }
+
+    rtk_prof.udpsocket_recv_thread_running = 1;
+    rtk_prof.udpsocket = socket(AF_INET, SOCK_DGRAM, 0);
+    LogMsg("create socket %d", rtk_prof.udpsocket);
+
+    if (rtk_prof.udpsocket < 0)
+    {
+        ALOGE("create udpsocket error...%s\n", strerror(errno));
+        rtk_prof.udpsocket_recv_thread_running = 0;
+        close(rtk_prof.udpsocket);
+        LogMsg("close socket %d", rtk_prof.udpsocket);
+        pthread_mutex_unlock(&rtk_prof.udpsocket_mutex);
+        return -1 ;
+    }
+
+    bzero((char *) &rtk_prof.server_addr, sizeof(rtk_prof.server_addr));
+    rtk_prof.server_addr.sin_family = AF_INET;
+    rtk_prof.server_addr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
+    rtk_prof.server_addr.sin_port = htons(CONNECT_PORT);
+
+    bzero((char *) &rtk_prof.client_addr, sizeof(rtk_prof.client_addr));
+    rtk_prof.client_addr.sin_family = AF_INET;
+    rtk_prof.client_addr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
+    rtk_prof.client_addr.sin_port = htons(CONNECT_PORT_WIFI);
+
+    optval = 1;
+    setsockopt(rtk_prof.udpsocket, SOL_SOCKET, SO_REUSEADDR, (const void *)&optval , sizeof(int));
+
+    if (bind(rtk_prof.udpsocket, (struct sockaddr *)&rtk_prof.server_addr, sizeof(rtk_prof.server_addr)) < 0)
+    {
+        ALOGE("bind udpsocket error...%s\n", strerror(errno));
+        rtk_prof.udpsocket_recv_thread_running = 0;
+        close(rtk_prof.udpsocket);
+        LogMsg("close socket %d", rtk_prof.udpsocket);
+        pthread_mutex_unlock(&rtk_prof.udpsocket_mutex);
+        return -1 ;
+    }
+
+    pthread_attr_init(&thread_attr_data);
+    if (pthread_create(&rtk_prof.thread_data, &thread_attr_data, (void*)udpsocket_receive_thread, NULL) != 0)
+    {
+        ALOGE("pthread_create failed!");
+        pthread_attr_destroy(&thread_attr_data);
+        rtk_prof.udpsocket_recv_thread_running = 0;
+        pthread_mutex_unlock(&rtk_prof.udpsocket_mutex);
+        return -1 ;
+    }
+    pthread_attr_destroy(&thread_attr_data);
+    pthread_mutex_unlock(&rtk_prof.udpsocket_mutex);
+    return 0;
+}
+
+int stop_udpsocket_receive_thread()
+{
+    pthread_mutex_lock(&rtk_prof.udpsocket_mutex);
+    int result = 0;
+
+    LogMsg("notify wifi bt turn off");
+    if(rtk_prof.wifi_on)
+        udpsocket_send(bt_leave, sizeof(bt_leave));
+
+    if (rtk_prof.udpsocket_recv_thread_running)
+    {
+        LogMsg("data thread is running, stop it");
+
+        //add for pthread_cancel
+
+        rtk_prof.udpsocket_recv_thread_running = 0;
+
+        if ((result = pthread_join(rtk_prof.thread_data, NULL)) < 0)
+        {
+            ALOGE( "data thread pthread_join() failed result:%d", result);
+        }
+
+        LogMsg("close socket %d", rtk_prof.udpsocket);
+        if((result = close(rtk_prof.udpsocket)) != 0)
+        {
+            ALOGE("close socket error!");
+        }
+    }
+    pthread_mutex_unlock(&rtk_prof.udpsocket_mutex);
+    return 0;
+}
+
+#if 0
+int create_netlink_socket()
+{
+    LogMsg("in creat netlink socket");
+    rtk_prof.nlsocket = socket(PF_NETLINK, SOCK_RAW, NETLINK_USER);
+
+    if (rtk_prof.nlsocket < 0)
+    {
+        ALOGE("create netlink socket error...%s\n", strerror(errno));
+        close(rtk_prof.nlsocket);
+        LogMsg("close netlink socket %d", rtk_prof.nlsocket);
+        return -1 ;
+    }
+    LogMsg("create netlink socket %d", rtk_prof.nlsocket);
+    memset(&rtk_prof.src_addr, 0, sizeof(rtk_prof.src_addr));
+    rtk_prof.src_addr.nl_family = AF_NETLINK;
+    rtk_prof.src_addr.nl_pid = getpid(); /* self pid */
+    rtk_prof.src_addr.nl_groups    = 0 ;    /* not in mcast groups */
+    int ret = bind(rtk_prof.nlsocket, (struct sockaddr *)&rtk_prof.src_addr, sizeof(rtk_prof.src_addr));
+    if(ret < 0)
+    {
+        ALOGE("bind netlink socket error...%s\n", strerror(errno));
+        close(rtk_prof.nlsocket);
+        LogMsg("close netlink socket %d", rtk_prof.nlsocket);
+        return -1 ;
+    }
+
+    return 0;
+}
+#endif
+
+void rtk_parse_init(hci_t *hci_if)
+{
+    LogMsg("rtk_profile_init, version: %s", RTK_VERSION);
+
+    pthread_mutex_init(&rtk_prof.profile_mutex, NULL);
+    pthread_mutex_init(&rtk_prof.udpsocket_mutex, NULL);
+    alloc_a2dp_packet_count_timer();
+    alloc_pan_packet_count_timer();
+    alloc_hogp_packet_count_timer();
+    alloc_polling_timer();
+
+    init_profile_hash(&rtk_prof);
+    init_connection_hash(&rtk_prof);
+
+    create_udpsocket_socket();
+    hci_interface = hci_if;
+}
+
+void rtk_parse_cleanup()
+{
+    LogMsg("rtk_profile_cleanup");
+    int kk = 0;
+    free_a2dp_packet_count_timer();
+    free_pan_packet_count_timer();
+    free_hogp_packet_count_timer();
+    free_polling_timer();
+
+    flush_connection_hash(&rtk_prof);
+    flush_profile_hash(&rtk_prof);
+    pthread_mutex_destroy(&rtk_prof.profile_mutex);
+
+    stop_udpsocket_receive_thread();
+    pthread_mutex_destroy(&rtk_prof.udpsocket_mutex);
+
+    rtk_prof.polling_enable = 0;
+    rtk_prof.profile_bitmap = 0;
+    rtk_prof.profile_status = 0;
+    for(kk = 0; kk < 8; kk++)
+        rtk_prof.profile_refcount[kk] = 0;
+}
+
+static void rtk_handle_vender_mailbox_cmp_evt(uint8_t* p, uint8_t len)
+{
+    uint8_t status = *p++;
+    if(len <= 4)
+    {
+        LogMsg("receive mailbox cmd from fw, total length <= 4");
+        return;
+    }
+    uint8_t subcmd = *p++;
+    LogMsg("receive mailbox cmd from fw, subcmd is 0x%x, status is 0x%x", subcmd, status);
+    switch(subcmd)
+    {
+        case HCI_VENDOR_SUB_CMD_BT_REPORT_CONN_SCO_INQ_INFO:
+            if(status == 0) //success
+                rtk_notify_info_to_wifi(POLLING_RESPONSE, sizeof(tHCI_LINKSTATUS_REPORT), (uint8_t*)p);
+            break;
+
+        case HCI_VENDOR_SUB_CMD_WIFI_CHANNEL_AND_BANDWIDTH_CMD:
+            rtk_notify_btcoex_to_wifi(WIFI_BW_CHNL_NOTIFY, status);
+            break;
+
+        case HCI_VENDOR_SUB_CMD_WIFI_FORCE_TX_POWER_CMD:
+            rtk_notify_btcoex_to_wifi(BT_POWER_DECREASE_CONTROL, status);
+            break;
+
+        case HCI_VENDOR_SUB_CMD_BT_ENABLE_IGNORE_WLAN_ACT_CMD:
+            rtk_notify_btcoex_to_wifi(IGNORE_WLAN_ACTIVE_CONTROL, status);
+            break;
+
+        case HCI_VENDOR_SUB_CMD_SET_BT_PSD_MODE:
+            rtk_notify_btcoex_to_wifi(BT_PSD_MODE_CONTROL, status);
+            break;
+
+        case HCI_VENDOR_SUB_CMD_SET_BT_LNA_CONSTRAINT:
+            rtk_notify_btcoex_to_wifi(LNA_CONSTRAIN_CONTROL, status);
+            break;
+
+        case HCI_VENDOR_SUB_CMD_BT_AUTO_REPORT_ENABLE:
+            break;
+
+        case HCI_VENDOR_SUB_CMD_BT_SET_TXRETRY_REPORT_PARAM:
+            break;
+
+        case HCI_VENDOR_SUB_CMD_BT_SET_PTATABLE:
+            break;
+
+        case HCI_VENDOR_SUB_CMD_GET_AFH_MAP_L:
+        {
+            if(status == 0)//success
+            {
+                memcpy(rtk_prof.afh_map, p+4, 4); //cmd_idx, length, piconet_id, mode
+                uint8_t temp_cmd[4];
+                temp_cmd[0] = HCI_VENDOR_SUB_CMD_GET_AFH_MAP_M;
+                temp_cmd[1] = 2;
+                temp_cmd[2] = rtk_prof.piconet_id;
+                temp_cmd[3] = rtk_prof.mode;
+                rtk_vendor_cmd_to_fw(HCI_VENDOR_MAILBOX_CMD, 4, temp_cmd);
+            }
+            else //fail
+            {
+                memset(rtk_prof.afh_map, 0, 10);
+                rtk_notify_afhmap_to_wifi();
+            }
+            break;
+        }
+        case HCI_VENDOR_SUB_CMD_GET_AFH_MAP_M:
+        {
+            if(status == 0)//success
+            {
+                memcpy(rtk_prof.afh_map+4, p+4, 4);
+                uint8_t temp_cmd[4];
+                temp_cmd[0] = HCI_VENDOR_SUB_CMD_GET_AFH_MAP_H;
+                temp_cmd[1] = 2;
+                temp_cmd[2] = rtk_prof.piconet_id;
+                temp_cmd[3] = rtk_prof.mode;
+                rtk_vendor_cmd_to_fw(HCI_VENDOR_MAILBOX_CMD, 4, temp_cmd);
+            }
+            else //fail
+            {
+                memset(rtk_prof.afh_map, 0, 10);
+                rtk_notify_afhmap_to_wifi();
+            }
+            break;
+        }
+
+        case HCI_VENDOR_SUB_CMD_GET_AFH_MAP_H:
+        {
+            if(status == 0)
+                memcpy(rtk_prof.afh_map+8, p+4, 2);
+            else
+                memset(rtk_prof.afh_map, 0, 10);
+
+            rtk_notify_afhmap_to_wifi();
+            break;
+        }
+
+        case HCI_VENDOR_SUB_CMD_RD_REG_REQ:
+        {
+            if(status == 0)
+                rtk_notify_regester_to_wifi(p+3);//cmd_idx,length,regist type
+            break;
+        }
+
+        case HCI_VENDOR_SUB_CMD_WR_REG_REQ:
+            rtk_notify_btcoex_to_wifi(BT_REGISTER_ACCESS, status);
+            break;
+
+        default:
+            break;
+    }
+}
+
+static void rtk_handle_cmd_complete_evt(uint8_t*p, uint8_t len)
+{
+    uint16_t opcode;
+    uint8_t status;
+    p++;
+    STREAM_TO_UINT16(opcode, p);
+    switch (opcode)
+    {
+        case HCI_PERIODIC_INQUIRY_MODE:
+        {
+            status = *p++;
+            if(status && rtk_prof.isinquirying)
+            {
+                rtk_prof.isinquirying = 0;
+                LogMsg("HCI_PERIODIC_INQUIRY_MODE start error, notify wifi inquiry stop");
+                rtk_notify_btoperation_to_wifi(BT_OPCODE_INQUIRY_END, 0, NULL);
+            }
+            break;
+        }
+
+        case HCI_READ_LOCAL_VERSION_INFO:
+        {
+            status = *p++;
+            if(!status)
+            {
+                p++;
+                STREAM_TO_UINT16(rtk_prof.hci_reversion, p);
+                p+=3;
+                STREAM_TO_UINT16(rtk_prof.lmp_subversion, p);
+            }
+            LogMsg("rtk_prof.hci_reversion = %x", rtk_prof.hci_reversion);
+            LogMsg("rtk_prof.lmp_subversion = %x", rtk_prof.lmp_subversion);
+            break;
+        }
+
+        case HCI_RESET:
+        {
+            LogMsg("bt start ok");
+            udpsocket_send(invite_req, sizeof(invite_req));
+#if 0
+            if(create_netlink_socket() == 0)
+            {
+                LogMsg("wifi is already on when bt turn on");
+                rtk_prof.wifi_on = 1;
+                netlink_send(rtk_prof.nlsocket, invite_req);
+            }
+            else
+                LogMsg("wifi is off when bt turn on, wait for wifi turning on...");
+#endif
+            uint8_t ttmp[1] = {1};
+            rtk_vendor_cmd_to_fw(0xfc1b, 1, ttmp);
+            break;
+        }
+
+        case 0xfc1b:
+            LogMsg("received cmd complete event for fc1b");
+            poweroff_allowed = 1;
+            break;
+
+        case HCI_VENDOR_MAILBOX_CMD:
+            rtk_handle_vender_mailbox_cmp_evt(p, len);
+            break;
+
+        case HCI_VENDOR_ADD_BITPOOL_FW:
+            status = *p++;
+            LogMsg("received cmd complete event for HCI_VENDOR_ADD_BITPOOL_FW status:%d",status);
+
+        default:
+            break;
+    }
+}
+
+static void rtk_handle_connection_complete_evt(uint8_t* p)
+{
+    uint8_t status = 0;
+    uint16_t handle = 0;
+    status = *p++;
+    STREAM_TO_UINT16 (handle, p);
+    p +=6;
+    uint8_t link_type = *p++;
+
+    if(status == 0)
+    {
+        if(rtk_prof.ispaging)
+        {
+            rtk_prof.ispaging = 0;
+            LogMsg("notify wifi page success end");
+            rtk_notify_btoperation_to_wifi(BT_OPCODE_PAGE_SUCCESS_END, 0, NULL);
+        }
+
+        tRTK_CONN_PROF* hci_conn = find_connection_by_handle(&rtk_prof, handle);
+        if(hci_conn == NULL)
+        {
+            hci_conn = allocate_connection_by_handle(handle);
+            if(hci_conn)
+            {
+                add_connection_to_hash(&rtk_prof, hci_conn);
+                hci_conn->profile_bitmap = 0;
+                memset(hci_conn->profile_refcount, 0, 8);
+                if((0 == link_type) ||(2 == link_type))//sco or esco
+                {
+                    hci_conn->type = 1;
+                    update_profile_connection(hci_conn, profile_sco, TRUE);
+                }
+                else
+                    hci_conn->type = 0;
+            }
+            else
+            {
+                ALOGE("HciConnAllocate fail");
+            }
+        }
+        else
+        {
+            LogMsg("HCI Connection handle(0x%x) has already exist!", handle);
+            hci_conn->profile_bitmap = 0;
+            memset(hci_conn->profile_refcount, 0, 8);
+            if((0 == link_type)||(2 == link_type))//sco or esco
+            {
+                hci_conn->type = 1;
+                update_profile_connection(hci_conn, profile_sco, TRUE);
+            }
+            else
+                hci_conn->type = 0;
+        }
+    }
+    else if(rtk_prof.ispaging)
+    {
+        rtk_prof.ispaging = 0;
+        LogMsg("notify wifi page unsuccess end");
+        rtk_notify_btoperation_to_wifi(BT_OPCODE_PAGE_UNSUCCESS_END, 0, NULL);
+    }
+}
+
+static void rtk_handle_disconnect_complete_evt(uint8_t* p)
+{
+    if(rtk_prof.ispairing)//for slave: connection will be disconnected if authentication fail
+    {
+        rtk_prof.ispairing = 0;
+        LogMsg("notify wifi pair end");
+        rtk_notify_btoperation_to_wifi(BT_OPCODE_PAIR_END, 0, NULL);
+    }
+
+    uint8_t status = 0;
+    uint16_t handle = 0;
+    uint8_t reason = 0;
+    status = *p++;
+    STREAM_TO_UINT16(handle, p);
+    reason = *p;
+
+    if(status == 0)
+    {
+        tRTK_CONN_PROF *hci_conn = find_connection_by_handle(&rtk_prof, handle);
+        if(hci_conn)
+        {
+            switch(hci_conn->type)
+            {
+                case 0:
+                {
+                    RT_LIST_ENTRY* iter = NULL, *temp = NULL;
+                    tRTK_PROF_INFO* prof_info = NULL;
+
+                    pthread_mutex_lock(&rtk_prof.profile_mutex);
+                    LIST_FOR_EACH_SAFELY(iter, temp, &rtk_prof.profile_list)
+                    {
+                        prof_info = LIST_ENTRY(iter, tRTK_PROF_INFO, list);
+                        if ((handle == prof_info->handle) && prof_info->scid && prof_info->dcid)
+                        {
+                            LogMsg("find info when hci disconnect, handle:%x, psm:%x, dcid:%x, scid:%x", prof_info->handle, prof_info->psm, prof_info->dcid, prof_info->scid);
+                            //If both scid and dcid > 0, L2cap connection is exist.
+                            update_profile_connection(hci_conn, prof_info->profile_index, FALSE);
+                            delete_profile_from_hash(prof_info);
+                        }
+                    }
+                    pthread_mutex_unlock(&rtk_prof.profile_mutex);
+                    break;
+                }
+
+                case 1:
+                    update_profile_connection(hci_conn, profile_sco, FALSE);
+                    break;
+
+                case 2:
+                {
+                    if(hci_conn->profile_bitmap & BIT(profile_hogp))
+                        update_profile_connection(hci_conn, profile_hogp, FALSE);
+
+                    if(hci_conn->profile_bitmap & BIT(profile_voice))
+                        update_profile_connection(hci_conn, profile_voice, FALSE);
+
+                    update_profile_connection(hci_conn, profile_hid, FALSE);
+                    break;
+                }
+
+                default:
+                    break;
+            }
+            delete_connection_from_hash(hci_conn);
+        }
+        else
+        {
+            ALOGE("HCI Connection handle(0x%x) not found", handle);
+        }
+    }
+}
+
+static void rtk_handle_le_connection_complete_evt(uint8_t* p)
+{
+    uint16_t handle, interval;
+    uint8_t status;
+    tRTK_CONN_PROF* hci_conn = NULL;
+
+    status = *p++;
+    STREAM_TO_UINT16 (handle, p);
+    p += 8; //role, address type, address
+    STREAM_TO_UINT16 (interval, p);
+
+    if(status == 0) {
+        if(rtk_prof.ispaging){
+            rtk_prof.ispaging = 0;
+            LogMsg("notify wifi page success end");
+            rtk_notify_btoperation_to_wifi(BT_OPCODE_PAGE_SUCCESS_END, 0, NULL);
+        }
+
+        hci_conn = find_connection_by_handle(&rtk_prof, handle);
+        if(hci_conn == NULL) {
+            hci_conn = allocate_connection_by_handle(handle);
+            if(hci_conn) {
+                add_connection_to_hash(&rtk_prof, hci_conn);
+                hci_conn->profile_bitmap = 0;
+                memset(hci_conn->profile_refcount, 0, 8);
+                hci_conn->type = 2;
+                update_profile_connection(hci_conn, profile_hid, TRUE); //for coex, le is the same as hid
+                update_hid_active_state(handle, interval);
+            } else {
+                ALOGE("hci connection allocate fail");
+            }
+        } else {
+            LogMsg("hci connection handle(0x%x) has already exist!", handle);
+            hci_conn->profile_bitmap = 0;
+            memset(hci_conn->profile_refcount, 0, 8);
+            hci_conn->type = 2;
+            update_profile_connection(hci_conn, profile_hid, TRUE);
+            update_hid_active_state(handle, interval);
+        }
+    } else if(rtk_prof.ispaging) {
+        rtk_prof.ispaging = 0;
+        LogMsg("notify wifi page unsuccess end");
+        rtk_notify_btoperation_to_wifi(BT_OPCODE_PAGE_UNSUCCESS_END, 0, NULL);
+    }
+}
+
+static void rtk_handle_le_connection_update_complete_evt(uint8_t* p)
+{
+    uint16_t handle, interval;
+    uint8_t status;
+
+    status = *p++;
+    STREAM_TO_UINT16 (handle, p);
+    STREAM_TO_UINT16 (interval, p);
+    update_hid_active_state(handle, interval);
+}
+
+static void rtk_handle_le_meta_evt(uint8_t* p)
+{
+    uint8_t sub_event = *p++;
+    switch (sub_event) {
+    case HCI_BLE_CONN_COMPLETE_EVT:
+        rtk_handle_le_connection_complete_evt(p);
+        break;
+
+    case HCI_BLE_LL_CONN_PARAM_UPD_EVT:
+        rtk_handle_le_connection_update_complete_evt(p);
+        break;
+
+    default :
+        break;
+    }
+}
+
+void rtk_parse_internal_event_intercept(uint8_t *p_msg)
+{
+    //ALOGE("in rtk_parse_internal_event_intercept, *p= %x", *p);
+    uint8_t *p = p_msg;
+    uint8_t event_code = *p++;
+    uint8_t len = *p++;
+    uint16_t opcode, mode_change_handle, mode_interval, subcode;
+    uint8_t status, num_hci_cmd_pkts;
+
+    switch (event_code)
+    {
+        case HCI_INQUIRY_COMP_EVT:
+        {
+            if(rtk_prof.isinquirying)
+            {
+                rtk_prof.isinquirying = 0;
+                LogMsg("notify wifi inquiry end");
+                rtk_notify_btoperation_to_wifi(BT_OPCODE_INQUIRY_END, 0, NULL);
+            }
+            break;
+        }
+
+        case HCI_PIN_CODE_REQUEST_EVT:
+        {
+            if(!rtk_prof.ispairing)
+            {
+                rtk_prof.ispairing = 1;
+                LogMsg("notify wifi pair start");
+                rtk_notify_btoperation_to_wifi(BT_OPCODE_PAIR_START, 0, NULL);
+            }
+            break;
+        }
+
+        case HCI_IO_CAPABILITY_REQUEST_EVT:
+        {
+            if(!rtk_prof.ispairing)
+            {
+                rtk_prof.ispairing = 1;
+                LogMsg("notify wifi pair start");
+                rtk_notify_btoperation_to_wifi(BT_OPCODE_PAIR_START, 0, NULL);
+            }
+            break;
+        }
+
+        case HCI_AUTHENTICATION_COMP_EVT:
+        {
+            if(rtk_prof.ispairing)
+            {
+                rtk_prof.ispairing = 0;
+                LogMsg("notify wifi pair end");
+                rtk_notify_btoperation_to_wifi(BT_OPCODE_PAIR_END, 0, NULL);
+            }
+            break;
+        }
+
+        case HCI_LINK_KEY_NOTIFICATION_EVT:
+        {
+            if(rtk_prof.ispairing)
+            {
+                rtk_prof.ispairing = 0;
+                LogMsg("notify wifi pair end");
+                rtk_notify_btoperation_to_wifi(BT_OPCODE_PAIR_END, 0, NULL);
+            }
+            break;
+        }
+
+        case HCI_MODE_CHANGE_EVT:
+        {
+            status = *p++;
+            STREAM_TO_UINT16(mode_change_handle, p);
+            p++;
+            STREAM_TO_UINT16(mode_interval, p);
+            update_hid_active_state(mode_change_handle, mode_interval);
+            break;
+        }
+
+        case HCI_COMMAND_COMPLETE_EVT:
+            rtk_handle_cmd_complete_evt(p, len);
+            break;
+
+        case HCI_COMMAND_STATUS_EVT:
+        {
+            status = *p++;
+            num_hci_cmd_pkts = *p++;
+            STREAM_TO_UINT16(opcode, p);
+            if((opcode == HCI_INQUIRY) && (status))
+            {
+                if(rtk_prof.isinquirying)
+                {
+                    rtk_prof.isinquirying = 0;
+                    LogMsg("inquiry start error, notify wifi inquiry stop");
+                    rtk_notify_btoperation_to_wifi(BT_OPCODE_INQUIRY_END, 0, NULL);
+                }
+            }
+
+            if(opcode == HCI_CREATE_CONNECTION)
+            {
+                if(!status && !rtk_prof.ispaging)
+                {
+                    rtk_prof.ispaging = 1;
+                    LogMsg("notify wifi start page");
+                    rtk_notify_btoperation_to_wifi(BT_OPCODE_PAGE_START, 0, NULL);
+                }
+            }
+            break;
+        }
+
+        case HCI_CONNECTION_COMP_EVT:
+        case HCI_ESCO_CONNECTION_COMP_EVT:
+            rtk_handle_connection_complete_evt(p);
+            break;
+
+        case HCI_DISCONNECTION_COMP_EVT:
+            rtk_handle_disconnect_complete_evt(p);
+            break;
+
+        case HCI_VENDOR_SPECIFIC_EVT:
+        {
+            STREAM_TO_UINT16(subcode, p);
+            if(subcode == HCI_VENDOR_PTA_AUTO_REPORT_EVENT)
+            {
+                LogMsg("notify wifi driver with autoreport data");
+                rtk_notify_info_to_wifi(AUTO_REPORT, sizeof(tHCI_LINKSTATUS_REPORT), (uint8_t *)p);
+            }
+            break;
+        }
+
+        case HCI_BLE_EVENT:
+            rtk_handle_le_meta_evt(p);
+            break;
+
+        default:
+            break;
+    }
+}
+
+void rtk_parse_command(uint8_t *pp)
+{
+    uint8_t *p =pp;
+    uint16_t cmd;
+    STREAM_TO_UINT16(cmd, p);
+
+    switch (cmd)
+    {
+        case HCI_INQUIRY:
+        case HCI_PERIODIC_INQUIRY_MODE:
+        {
+            if(!rtk_prof.isinquirying)
+            {
+                rtk_prof.isinquirying = 1;
+                LogMsg("notify wifi inquiry start");
+                rtk_notify_btoperation_to_wifi(BT_OPCODE_INQUIRY_START, 0, NULL);
+            }
+            break;
+        }
+
+        case HCI_INQUIRY_CANCEL:
+        case HCI_EXIT_PERIODIC_INQUIRY_MODE:
+        {
+            if(rtk_prof.isinquirying)
+            {
+                rtk_prof.isinquirying = 0;
+                LogMsg("notify wifi inquiry stop");
+                rtk_notify_btoperation_to_wifi(BT_OPCODE_INQUIRY_END, 0, NULL);
+            }
+            break;
+        }
+
+        case HCI_ACCEPT_CONNECTION_REQUEST:
+        {
+            if(!rtk_prof.ispaging)
+            {
+                rtk_prof.ispaging = 1;
+                LogMsg("notify wifi page start");
+                rtk_notify_btoperation_to_wifi(BT_OPCODE_PAGE_START, 0, NULL);
+            }
+            break;
+        }
+
+        default:
+            break;
+    }
+}
+
+void rtk_parse_l2cap_data(uint8_t *pp, uint8_t direction)
+{
+    uint16_t handle, total_len, pdu_len, channel_ID, command_len, psm, scid, dcid, result, status;
+    uint8_t flag, code, identifier;
+    STREAM_TO_UINT16 (handle, pp);
+    flag = handle >> 12;
+    handle = handle & 0x0FFF;
+    STREAM_TO_UINT16 (total_len, pp);
+    STREAM_TO_UINT16 (pdu_len, pp);
+    STREAM_TO_UINT16 (channel_ID, pp);
+
+    if(channel_ID == 0x0001)
+    {
+        code = (uint8_t)(*pp++);
+        switch (code)
+        {
+            case L2CAP_CONNECTION_REQ:
+                identifier = (uint8_t)(*pp++);
+                STREAM_TO_UINT16 (command_len, pp);
+                STREAM_TO_UINT16 (psm, pp);
+                STREAM_TO_UINT16 (scid, pp);
+                LogMsg("L2CAP_CONNECTION_REQ, handle=%x, PSM=%x, scid=%x", handle, psm, scid);
+                handle_l2cap_con_req(handle, psm, scid, direction);
+                break;
+
+            case L2CAP_CONNECTION_RSP:
+                identifier = (uint8_t)(*pp++);
+                STREAM_TO_UINT16 (command_len, pp);
+                STREAM_TO_UINT16 (dcid, pp);
+                STREAM_TO_UINT16 (scid, pp);
+                STREAM_TO_UINT16 (result, pp);
+                STREAM_TO_UINT16 (status, pp);
+                LogMsg("L2CAP_CONNECTION_RESP, handle=%x, dcid=%x, scid=%x, result=%x", handle, dcid, scid, result);
+                //if(result == 0)
+                    handle_l2cap_con_rsp(handle, dcid, scid, direction, result);
+                break;
+
+            case L2CAP_DISCONNECTION_REQ:
+                identifier = (uint8_t)(*pp++);
+                STREAM_TO_UINT16 (command_len, pp);
+                STREAM_TO_UINT16 (dcid, pp);
+                STREAM_TO_UINT16 (scid, pp);
+                LogMsg("L2CAP_DISCONNECTION_REQ, handle=%x, dcid=%x, scid=%x",handle, dcid, scid);
+                handle_l2cap_discon_req(handle, dcid, scid, direction);
+                break;
+
+            case L2CAP_DISCONNECTION_RSP:
+                break;
+
+            default:
+                break;
+        }
+    }
+    else
+    {
+        if((flag != 0x01)&&(is_profile_connected(profile_a2dp) || is_profile_connected(profile_pan)))//Do not count the continuous packets
+            packets_count(handle, channel_ID, pdu_len, direction);
+    }
+}
+
+void rtk_add_le_profile(BD_ADDR bdaddr, uint16_t handle, uint8_t profile_map)
+{
+    LogMsg("rtk_add_le_profile, handle is %x, profile_map is %x", handle, profile_map);
+
+    tRTK_CONN_PROF* hci_conn = find_connection_by_handle(&rtk_prof, handle);
+    if(hci_conn)
+    {
+        if((profile_map & 0x01) || (profile_map & 0x02))//bit0: mouse, bit1:keyboard
+            update_profile_connection(hci_conn, profile_hogp, TRUE);
+
+        if(profile_map & 0x04)
+            update_profile_connection(hci_conn, profile_voice, TRUE);
+    }
+    else
+    {
+        ALOGE("rtk_add_le_profile, connection handle(0x%x) not exist!", handle);
+    }
+}
+
+void rtk_delete_le_profile(BD_ADDR bdaddr, uint16_t handle, uint8_t profile_map)
+{
+    LogMsg("rtk_delete_le_profile, handle is %x, profile_map is %x", handle, profile_map);
+
+    pthread_mutex_lock(&rtk_prof.profile_mutex);
+    tRTK_CONN_PROF* hci_conn = find_connection_by_handle(&rtk_prof, handle);
+    if(hci_conn == NULL)
+    {
+        ALOGE("rtk_delete_le_profile, hci_conn not exist with handle %x", handle);
+    }
+    else
+    {
+        if((profile_map & 0x01) || (profile_map & 0x02))//bit0: mouse, bit1:keyboard
+            update_profile_connection(hci_conn, profile_hogp, FALSE);
+
+        if(profile_map & 0x04)
+            update_profile_connection(hci_conn, profile_voice, FALSE);
+    }
+    pthread_mutex_unlock(&rtk_prof.profile_mutex);
+}
+
+void rtk_add_le_data_count(uint8_t data_type)
+{
+    LogMsg("rtk_add_le_data_count, data_type is %x", data_type);
+
+    if((data_type == 1) || (data_type == 2))//1:keyboard, 2:mouse
+    {
+        rtk_prof.hogp_packet_count++;
+        if(!is_profile_busy(profile_hogp))
+        {
+            LogMsg("hogp idle->busy");
+            update_profile_state(profile_hogp, TRUE);
+        }
+    }
+
+    if(data_type == 3)//voice
+    {
+        rtk_prof.voice_packet_count ++;
+        if(!is_profile_busy(profile_voice))
+        {
+            LogMsg("voice idle->busy");
+            update_profile_state(profile_voice, TRUE);
+        }
+    }
+}
+
+void rtk_add_bitpool_to_fw(uint8_t bitpool)
+{
+    uint8_t temp_cmd[1];
+    ALOGE("rtk_add_bitpool_to_fw bitpool:%d", bitpool);
+    temp_cmd[0] = bitpool;
+    rtk_vendor_cmd_to_fw(HCI_VENDOR_ADD_BITPOOL_FW, 1, temp_cmd);
+}
+
+static const rtk_parse_manager_t interface = {
+  rtk_parse_internal_event_intercept,
+  rtk_parse_l2cap_data,
+  rtk_parse_init,
+  rtk_parse_cleanup,
+  rtk_parse_command,
+  rtk_add_le_profile,
+  rtk_delete_le_profile,
+  rtk_add_le_data_count,
+  rtk_add_bitpool_to_fw,
+};
+
+const rtk_parse_manager_t *rtk_parse_manager_get_interface() {
+  buffer_allocator = buffer_allocator_get_interface();
+  return &interface;
+}
+
+
diff --git a/rtkbt/code/bt/hci/src/vendor.c b/rtkbt/code/bt/hci/src/vendor.c
new file mode 100755
index 0000000..cb8640e
--- /dev/null
+++ b/rtkbt/code/bt/hci/src/vendor.c
@@ -0,0 +1,255 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_vendor"
+
+#include "vendor.h"
+
+#include <assert.h>
+#include <dlfcn.h>
+
+#include "buffer_allocator.h"
+#include "bt_vendor_lib.h"
+#include "bta_av_api.h"
+#include "osi/include/log.h"
+#include "osi/include/osi.h"
+
+
+#ifdef BLUETOOTH_RTK
+#include "bdroid_buildcfg.h"
+static const char *VENDOR_LIBRARY_NAME_USB = "libbt-vendor_usb.so";
+static const char *VENDOR_LIBRARY_NAME_UART = "libbt-vendor_uart.so";
+#endif
+static const char *VENDOR_LIBRARY_NAME = "libbt-vendor.so";
+static const char *VENDOR_LIBRARY_SYMBOL_NAME = "BLUETOOTH_VENDOR_LIB_INTERFACE";
+
+static const vendor_t interface;
+static const allocator_t *buffer_allocator;
+static const hci_t *hci;
+static vendor_cb callbacks[VENDOR_LAST_OP];
+
+static void *lib_handle;
+static bt_vendor_interface_t *lib_interface;
+static const bt_vendor_callbacks_t lib_callbacks;
+
+// Interface functions
+
+static bool vendor_open(
+    const uint8_t *local_bdaddr,
+    const hci_t *hci_interface) {
+  assert(lib_handle == NULL);
+  hci = hci_interface;
+
+#ifdef BLUETOOTH_RTK
+  if(!bluetooth_rtk_h5_flag ) {
+    lib_handle = dlopen(VENDOR_LIBRARY_NAME_USB,RTLD_NOW);
+    if (!lib_handle) {
+        ALOGE("%s unable to open %s: %s", __func__, VENDOR_LIBRARY_NAME_USB,
+        dlerror());
+        goto error;
+    }
+  } else {
+    lib_handle = dlopen(VENDOR_LIBRARY_NAME_UART,RTLD_NOW);
+    if (!lib_handle) {
+      ALOGE("%s unable to open %s: %s", __func__, VENDOR_LIBRARY_NAME_UART,
+      dlerror());
+      goto error;
+    }
+  }
+#else
+  lib_handle = dlopen(VENDOR_LIBRARY_NAME, RTLD_NOW);
+  if (!lib_handle) {
+    LOG_ERROR(LOG_TAG, "%s unable to open %s: %s", __func__, VENDOR_LIBRARY_NAME, dlerror());
+    goto error;
+  }
+#endif
+
+  lib_interface = (bt_vendor_interface_t *)dlsym(lib_handle, VENDOR_LIBRARY_SYMBOL_NAME);
+  if (!lib_interface) {
+    LOG_ERROR(LOG_TAG, "%s unable to find symbol %s in %s: %s", __func__, VENDOR_LIBRARY_SYMBOL_NAME, VENDOR_LIBRARY_NAME, dlerror());
+    goto error;
+  }
+
+  LOG_INFO(LOG_TAG, "alloc value %p", lib_callbacks.alloc);
+
+#ifdef BLUETOOTH_RTK
+  int status = lib_interface->init(&lib_callbacks, (unsigned char *)local_bdaddr,bt_hci_device_node);
+#else
+  int status = lib_interface->init(&lib_callbacks, (unsigned char *)local_bdaddr);
+#endif
+  if (status) {
+    LOG_ERROR(LOG_TAG, "%s unable to initialize vendor library: %d", __func__, status);
+    goto error;
+  }
+
+  return true;
+
+error:;
+  lib_interface = NULL;
+  if (lib_handle)
+    dlclose(lib_handle);
+  lib_handle = NULL;
+  return false;
+}
+
+static void vendor_close(void) {
+  if (lib_interface)
+    lib_interface->cleanup();
+
+  if (lib_handle)
+    dlclose(lib_handle);
+
+  lib_interface = NULL;
+  lib_handle = NULL;
+}
+
+static int send_command(vendor_opcode_t opcode, void *param) {
+  assert(lib_interface != NULL);
+  return lib_interface->op((bt_vendor_opcode_t)opcode, param);
+}
+
+static int send_async_command(vendor_async_opcode_t opcode, void *param) {
+  assert(lib_interface != NULL);
+  return lib_interface->op((bt_vendor_opcode_t)opcode, param);
+}
+
+static void set_callback(vendor_async_opcode_t opcode, vendor_cb callback) {
+  callbacks[opcode] = callback;
+}
+
+// Internal functions
+
+// Called back from vendor library when the firmware configuration
+// completes.
+static void firmware_config_cb(bt_vendor_op_result_t result) {
+  LOG_INFO(LOG_TAG, "firmware callback");
+  vendor_cb callback = callbacks[VENDOR_CONFIGURE_FIRMWARE];
+  assert(callback != NULL);
+  callback(result == BT_VND_OP_RESULT_SUCCESS);
+}
+
+// Called back from vendor library to indicate status of previous
+// SCO configuration request. This should only happen during the
+// postload process.
+static void sco_config_cb(bt_vendor_op_result_t result) {
+  LOG_INFO(LOG_TAG, "%s", __func__);
+  vendor_cb callback = callbacks[VENDOR_CONFIGURE_SCO];
+  assert(callback != NULL);
+  callback(result == BT_VND_OP_RESULT_SUCCESS);
+}
+
+// Called back from vendor library to indicate status of previous
+// LPM enable/disable request.
+static void low_power_mode_cb(bt_vendor_op_result_t result) {
+  LOG_INFO(LOG_TAG, "%s", __func__);
+  vendor_cb callback = callbacks[VENDOR_SET_LPM_MODE];
+  assert(callback != NULL);
+  callback(result == BT_VND_OP_RESULT_SUCCESS);
+}
+
+/******************************************************************************
+**
+** Function         sco_audiostate_cb
+**
+** Description      HOST/CONTROLLER VENDOR LIB CALLBACK API - This function is
+**                  called when the libbt-vendor completed vendor specific codec
+**                  setup request
+**
+** Returns          None
+**
+******************************************************************************/
+static void sco_audiostate_cb(bt_vendor_op_result_t result)
+{
+    uint8_t status = (result == BT_VND_OP_RESULT_SUCCESS) ? 0 : 1;
+
+    LOG_INFO(LOG_TAG, "sco_audiostate_cb(status: %d)",status);
+}
+
+// Called by vendor library when it needs an HCI buffer.
+static void *buffer_alloc_cb(int size) {
+  return buffer_allocator->alloc(size);
+}
+
+// Called by vendor library when it needs to free a buffer allocated with
+// |buffer_alloc_cb|.
+static void buffer_free_cb(void *buffer) {
+  buffer_allocator->free(buffer);
+}
+
+static void transmit_completed_callback(BT_HDR *response, void *context) {
+  // Call back to the vendor library if it provided a callback to call.
+  if (context) {
+    ((tINT_CMD_CBACK)context)(response);
+  } else {
+    // HCI layer expects us to release the response.
+    buffer_free_cb(response);
+  }
+}
+
+// Called back from vendor library when it wants to send an HCI command.
+static uint8_t transmit_cb(UNUSED_ATTR uint16_t opcode, void *buffer, tINT_CMD_CBACK callback) {
+  assert(hci != NULL);
+  hci->transmit_command((BT_HDR *)buffer, transmit_completed_callback, NULL, callback);
+  return true;
+}
+
+// Called back from vendor library when the epilog procedure has
+// completed. It is safe to call vendor_interface->cleanup() after
+// this callback has been received.
+static void epilog_cb(bt_vendor_op_result_t result) {
+  LOG_INFO(LOG_TAG, "%s", __func__);
+  vendor_cb callback = callbacks[VENDOR_DO_EPILOG];
+  assert(callback != NULL);
+  callback(result == BT_VND_OP_RESULT_SUCCESS);
+}
+
+// Called back from vendor library when the a2dp offload machine has to report status of
+// an a2dp offload command.
+static void a2dp_offload_cb(bt_vendor_op_result_t result, bt_vendor_opcode_t op, uint8_t bta_av_handle) {
+  tBTA_AV_STATUS status = (result == BT_VND_OP_RESULT_SUCCESS) ? BTA_AV_SUCCESS : BTA_AV_FAIL_RESOURCES;
+
+  if (op == BT_VND_OP_A2DP_OFFLOAD_START) {
+      BTA_AvOffloadStartRsp(bta_av_handle, status);
+  }
+}
+
+static const bt_vendor_callbacks_t lib_callbacks = {
+  sizeof(lib_callbacks),
+  firmware_config_cb,
+  sco_config_cb,
+  low_power_mode_cb,
+  sco_audiostate_cb,
+  buffer_alloc_cb,
+  buffer_free_cb,
+  transmit_cb,
+  epilog_cb,
+  a2dp_offload_cb
+};
+
+static const vendor_t interface = {
+  vendor_open,
+  vendor_close,
+  send_command,
+  send_async_command,
+  set_callback,
+};
+
+const vendor_t *vendor_get_interface() {
+  buffer_allocator = buffer_allocator_get_interface();
+  return &interface;
+}
diff --git a/rtkbt/code/bt/hci/test/hci_hal_h4_test.cpp b/rtkbt/code/bt/hci/test/hci_hal_h4_test.cpp
new file mode 100755
index 0000000..bf62405
--- /dev/null
+++ b/rtkbt/code/bt/hci/test/hci_hal_h4_test.cpp
@@ -0,0 +1,270 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#include <gtest/gtest.h>
+
+#include "AllocationTestHarness.h"
+
+extern "C" {
+#include <stdint.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <unistd.h>
+
+#include "osi/include/osi.h"
+#include "osi/include/semaphore.h"
+#include "hci_hal.h"
+#include "test_stubs.h"
+#include "vendor.h"
+}
+
+DECLARE_TEST_MODES(
+  init,
+  open,
+  close_fn,
+  transmit,
+  read_synchronous,
+  read_async_reentry,
+  type_byte_only
+);
+
+// Use as packet type to test stream_corrupted_during_le_scan_workaround()
+static const uint8_t HCI_BLE_EVENT = 0x3e;
+
+static char sample_data1[100] = "A point is that which has no part.";
+static char sample_data2[100] = "A line is breadthless length.";
+static char sample_data3[100] = "The ends of a line are points.";
+static char acl_data[100] =     "A straight line is a line which lies evenly with the points on itself.";
+static char sco_data[100] =     "A surface is that which has length and breadth only.";
+static char event_data[100] =   "The edges of a surface are lines.";
+
+// Test data for stream_corrupted_during_le_scan_workaround()
+static char corrupted_data[] = { 0x5 /* length of remaining data */, 'H', 'e', 'l', 'l', 'o' };
+
+static const hci_hal_t *hal;
+static int dummy_serial_fd;
+static int reentry_i = 0;
+
+static semaphore_t *done;
+static semaphore_t *reentry_semaphore;
+
+static void expect_packet_synchronous(serial_data_type_t type, char *packet_data) {
+  int length = strlen(packet_data);
+  for (int i = 0; i < length; i++) {
+    uint8_t byte;
+    EXPECT_EQ((size_t)1, hal->read_data(type, &byte, 1));
+    EXPECT_EQ(packet_data[i], byte);
+  }
+
+  hal->packet_finished(type);
+}
+
+STUB_FUNCTION(int, vendor_send_command, (vendor_opcode_t opcode, void *param))
+  DURING(open) AT_CALL(0) {
+    EXPECT_EQ(VENDOR_OPEN_USERIAL, opcode);
+    // Give back the dummy fd and the number 1 to say we opened 1 port
+    ((int *)param)[0] = dummy_serial_fd;
+    return 1;
+  }
+
+  DURING(close_fn) AT_CALL(0) {
+    EXPECT_EQ(VENDOR_CLOSE_USERIAL, opcode);
+    return 0;
+  }
+
+  UNEXPECTED_CALL;
+  return 0;
+}
+
+STUB_FUNCTION(void, data_ready_callback, (serial_data_type_t type))
+  DURING(read_synchronous) {
+    AT_CALL(0) {
+      EXPECT_EQ(DATA_TYPE_ACL, type);
+      expect_packet_synchronous(type, acl_data);
+      return;
+    }
+    AT_CALL(1) {
+      EXPECT_EQ(DATA_TYPE_SCO, type);
+      expect_packet_synchronous(type, sco_data);
+      return;
+    }
+    AT_CALL(2) {
+      EXPECT_EQ(DATA_TYPE_EVENT, type);
+      expect_packet_synchronous(type, event_data);
+      semaphore_post(done);
+      return;
+    }
+  }
+
+  DURING(read_async_reentry) {
+    EXPECT_EQ(DATA_TYPE_ACL, type);
+
+    uint8_t byte;
+    size_t bytes_read;
+    while ((bytes_read = hal->read_data(type, &byte, 1)) != 0) {
+      EXPECT_EQ(sample_data3[reentry_i], byte);
+      semaphore_post(reentry_semaphore);
+      reentry_i++;
+      if (reentry_i == (int)strlen(sample_data3)) {
+        hal->packet_finished(type);
+        return;
+      }
+    }
+
+    return;
+  }
+
+  UNEXPECTED_CALL;
+}
+
+static void reset_for(TEST_MODES_T next) {
+  RESET_CALL_COUNT(vendor_send_command);
+  RESET_CALL_COUNT(data_ready_callback);
+  CURRENT_TEST_MODE = next;
+}
+
+class HciHalH4Test : public AllocationTestHarness {
+  protected:
+    virtual void SetUp() {
+      AllocationTestHarness::SetUp();
+      hal = hci_hal_h4_get_test_interface(&vendor);
+      vendor.send_command = vendor_send_command;
+      callbacks.data_ready = data_ready_callback;
+
+      socketpair(AF_LOCAL, SOCK_STREAM, 0, sockfd);
+      dummy_serial_fd = sockfd[0];
+      done = semaphore_new(0);
+      thread = thread_new("hal_test");
+
+      reset_for(init);
+      EXPECT_TRUE(hal->init(&callbacks, thread));
+
+      reset_for(open);
+      EXPECT_TRUE(hal->open());
+      EXPECT_CALL_COUNT(vendor_send_command, 1);
+    }
+
+    virtual void TearDown() {
+      reset_for(close_fn);
+      hal->close();
+      EXPECT_CALL_COUNT(vendor_send_command, 1);
+
+      semaphore_free(done);
+      thread_free(thread);
+      AllocationTestHarness::TearDown();
+    }
+
+    int sockfd[2];
+    vendor_t vendor;
+    thread_t *thread;
+    hci_hal_callbacks_t callbacks;
+};
+
+static void expect_socket_data(int fd, char first_byte, char *data) {
+  int length = strlen(data) + 1; // + 1 for data type code
+  int i;
+
+  for (i = 0; i < length; i++) {
+    fd_set read_fds;
+    FD_ZERO(&read_fds);
+    FD_SET(fd, &read_fds);
+    select(fd + 1, &read_fds, NULL, NULL, NULL);
+
+    char byte;
+    read(fd, &byte, 1);
+
+    EXPECT_EQ(i == 0 ? first_byte : data[i - 1], byte);
+  }
+}
+
+static void write_packet(int fd, char first_byte, char *data) {
+  write(fd, &first_byte, 1);
+  write(fd, data, strlen(data));
+}
+
+static void write_packet_reentry(int fd, char first_byte, char *data) {
+  write(fd, &first_byte, 1);
+
+  int length = strlen(data);
+  for (int i = 0; i < length; i++) {
+    write(fd, &data[i], 1);
+    semaphore_wait(reentry_semaphore);
+  }
+}
+
+TEST_F(HciHalH4Test, test_transmit) {
+  reset_for(transmit);
+
+  // Send a command packet
+  hal->transmit_data(DATA_TYPE_COMMAND, (uint8_t *)(sample_data1 + 1), strlen(sample_data1 + 1));
+  expect_socket_data(sockfd[1], DATA_TYPE_COMMAND, sample_data1 + 1);
+
+  // Send an acl packet
+  hal->transmit_data(DATA_TYPE_ACL, (uint8_t *)(sample_data2 + 1), strlen(sample_data2 + 1));
+  expect_socket_data(sockfd[1], DATA_TYPE_ACL, sample_data2 + 1);
+
+  // Send an sco packet
+  hal->transmit_data(DATA_TYPE_SCO, (uint8_t *)(sample_data3 + 1), strlen(sample_data3 + 1));
+  expect_socket_data(sockfd[1], DATA_TYPE_SCO, sample_data3 + 1);
+}
+
+TEST_F(HciHalH4Test, test_read_synchronous) {
+  reset_for(read_synchronous);
+
+  write_packet(sockfd[1], DATA_TYPE_ACL, acl_data);
+  write_packet(sockfd[1], HCI_BLE_EVENT, corrupted_data);
+  write_packet(sockfd[1], DATA_TYPE_SCO, sco_data);
+  write_packet(sockfd[1], DATA_TYPE_EVENT, event_data);
+
+  // Wait for all data to be received before calling the test good
+  semaphore_wait(done);
+  EXPECT_CALL_COUNT(data_ready_callback, 3);
+}
+
+TEST_F(HciHalH4Test, test_read_async_reentry) {
+  reset_for(read_async_reentry);
+
+  reentry_semaphore = semaphore_new(0);
+  reentry_i = 0;
+
+  write_packet_reentry(sockfd[1], DATA_TYPE_ACL, sample_data3);
+
+  // write_packet_reentry ensures the data has been received
+  semaphore_free(reentry_semaphore);
+}
+
+TEST_F(HciHalH4Test, test_type_byte_only_must_not_signal_data_ready) {
+  reset_for(type_byte_only);
+
+  char byte = DATA_TYPE_ACL;
+  write(sockfd[1], &byte, 1);
+
+  fd_set read_fds;
+
+  // Wait until the byte we wrote was picked up
+  do {
+    FD_ZERO(&read_fds);
+    FD_SET(sockfd[0], &read_fds);
+
+    struct timeval timeout;
+    timeout.tv_sec = 0;
+    timeout.tv_usec = 0;
+
+    select(sockfd[0] + 1, &read_fds, NULL, NULL, &timeout);
+  } while(FD_ISSET(sockfd[0], &read_fds));
+}
diff --git a/rtkbt/code/bt/hci/test/hci_hal_mct_test.cpp b/rtkbt/code/bt/hci/test/hci_hal_mct_test.cpp
new file mode 100755
index 0000000..f40f323
--- /dev/null
+++ b/rtkbt/code/bt/hci/test/hci_hal_mct_test.cpp
@@ -0,0 +1,244 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#include <gtest/gtest.h>
+
+#include "AllocationTestHarness.h"
+
+extern "C" {
+#include <stdint.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <unistd.h>
+
+#include "osi/include/osi.h"
+#include "osi/include/semaphore.h"
+#include "hci_hal.h"
+#include "test_stubs.h"
+#include "vendor.h"
+}
+
+DECLARE_TEST_MODES(
+  init,
+  open,
+  close_fn,
+  transmit,
+  read_synchronous,
+  read_async_reentry
+);
+
+static char sample_data1[100] = "A point is that which has no part.";
+static char sample_data2[100] = "A line is breadthless length.";
+static char sample_data3[100] = "The ends of a line are points.";
+static char acl_data[100] =     "A straight line is a line which lies evenly with the points on itself.";
+static char event_data[100] =   "The edges of a surface are lines.";
+
+static const hci_hal_t *hal;
+static int command_out_fd;
+static int acl_out_fd;
+static int acl_in_fd;
+static int event_in_fd;
+static int reentry_i = 0;
+
+static semaphore_t *done;
+static semaphore_t *reentry_semaphore;
+
+static void expect_packet_synchronous(serial_data_type_t type, char *packet_data) {
+  int length = strlen(packet_data);
+  for (int i = 0; i < length; i++) {
+    uint8_t byte;
+    EXPECT_EQ((size_t)1, hal->read_data(type, &byte, 1));
+    EXPECT_EQ(packet_data[i], byte);
+  }
+
+  hal->packet_finished(type);
+}
+
+STUB_FUNCTION(int, vendor_send_command, (vendor_opcode_t opcode, void *param))
+  DURING(open) AT_CALL(0) {
+    EXPECT_EQ(VENDOR_OPEN_USERIAL, opcode);
+    ((int *)param)[CH_CMD] = command_out_fd;
+    ((int *)param)[CH_ACL_OUT] = acl_out_fd;
+    ((int *)param)[CH_ACL_IN] = acl_in_fd;
+    ((int *)param)[CH_EVT] = event_in_fd;
+    return 4;
+  }
+
+  DURING(close_fn) AT_CALL(0) {
+    EXPECT_EQ(VENDOR_CLOSE_USERIAL, opcode);
+    return 0;
+  }
+
+  UNEXPECTED_CALL;
+  return 0;
+}
+
+STUB_FUNCTION(void, data_ready_callback, (serial_data_type_t type))
+  DURING(read_synchronous) {
+    AT_CALL(0) {
+      EXPECT_EQ(DATA_TYPE_ACL, type);
+      expect_packet_synchronous(type, acl_data);
+      semaphore_post(done);
+      return;
+    }
+    AT_CALL(1) {
+      EXPECT_EQ(DATA_TYPE_EVENT, type);
+      expect_packet_synchronous(type, event_data);
+      semaphore_post(done);
+      return;
+    }
+  }
+
+  DURING(read_async_reentry) {
+    EXPECT_EQ(DATA_TYPE_ACL, type);
+
+    uint8_t byte;
+    size_t bytes_read;
+    while ((bytes_read = hal->read_data(type, &byte, 1)) != 0) {
+      EXPECT_EQ(sample_data3[reentry_i], byte);
+      semaphore_post(reentry_semaphore);
+      reentry_i++;
+      if (reentry_i == (int)strlen(sample_data3)) {
+        hal->packet_finished(type);
+        return;
+      }
+    }
+
+    return;
+  }
+
+  UNEXPECTED_CALL;
+}
+
+static void reset_for(TEST_MODES_T next) {
+  RESET_CALL_COUNT(vendor_send_command);
+  RESET_CALL_COUNT(data_ready_callback);
+  CURRENT_TEST_MODE = next;
+}
+
+class HciHalMctTest : public AllocationTestHarness {
+  protected:
+    virtual void SetUp() {
+      AllocationTestHarness::SetUp();
+      hal = hci_hal_mct_get_test_interface(&vendor);
+      vendor.send_command = vendor_send_command;
+      callbacks.data_ready = data_ready_callback;
+
+      socketpair(AF_LOCAL, SOCK_STREAM, 0, command_sockfd);
+      socketpair(AF_LOCAL, SOCK_STREAM, 0, event_sockfd);
+      socketpair(AF_LOCAL, SOCK_STREAM, 0, acl_in_sockfd);
+      socketpair(AF_LOCAL, SOCK_STREAM, 0, acl_out_sockfd);
+      command_out_fd = command_sockfd[0];
+      acl_out_fd = acl_out_sockfd[0];
+      acl_in_fd = acl_in_sockfd[0];
+      event_in_fd = event_sockfd[0];
+
+      done = semaphore_new(0);
+      thread = thread_new("hal_test");
+
+      reset_for(init);
+      EXPECT_TRUE(hal->init(&callbacks, thread));
+
+      reset_for(open);
+      EXPECT_TRUE(hal->open());
+      EXPECT_CALL_COUNT(vendor_send_command, 1);
+    }
+
+    virtual void TearDown() {
+      reset_for(close_fn);
+      hal->close();
+      EXPECT_CALL_COUNT(vendor_send_command, 1);
+
+      semaphore_free(done);
+      thread_free(thread);
+      AllocationTestHarness::TearDown();
+    }
+
+    int command_sockfd[2];
+    int event_sockfd[2];
+    int acl_in_sockfd[2];
+    int acl_out_sockfd[2];
+    vendor_t vendor;
+    thread_t *thread;
+    hci_hal_callbacks_t callbacks;
+};
+
+static void expect_socket_data(int fd, char *data) {
+  int length = strlen(data);
+  int i;
+
+  for (i = 0; i < length; i++) {
+    fd_set read_fds;
+    FD_ZERO(&read_fds);
+    FD_SET(fd, &read_fds);
+    select(fd + 1, &read_fds, NULL, NULL, NULL);
+
+    char byte;
+    read(fd, &byte, 1);
+
+    EXPECT_EQ(data[i], byte);
+  }
+}
+
+static void write_packet(int fd, char *data) {
+  write(fd, data, strlen(data));
+}
+
+static void write_packet_reentry(int fd, char *data) {
+  int length = strlen(data);
+  for (int i = 0; i < length; i++) {
+    write(fd, &data[i], 1);
+    semaphore_wait(reentry_semaphore);
+  }
+}
+
+TEST_F(HciHalMctTest, test_transmit) {
+  reset_for(transmit);
+
+  // Send a command packet
+  hal->transmit_data(DATA_TYPE_COMMAND, (uint8_t *)(sample_data1), strlen(sample_data1));
+  expect_socket_data(command_sockfd[1], sample_data1);
+
+  // Send an acl packet
+  hal->transmit_data(DATA_TYPE_ACL, (uint8_t *)(sample_data2), strlen(sample_data2));
+  expect_socket_data(acl_out_sockfd[1], sample_data2);
+}
+
+TEST_F(HciHalMctTest, test_read_synchronous) {
+  reset_for(read_synchronous);
+
+  write_packet(acl_in_sockfd[1], acl_data);
+  semaphore_wait(done);
+
+  write_packet(event_sockfd[1], event_data);
+  semaphore_wait(done);
+
+  EXPECT_CALL_COUNT(data_ready_callback, 2);
+}
+
+TEST_F(HciHalMctTest, test_read_async_reentry) {
+  reset_for(read_async_reentry);
+
+  reentry_semaphore = semaphore_new(0);
+  reentry_i = 0;
+
+  write_packet_reentry(acl_in_sockfd[1], sample_data3);
+
+  // write_packet_reentry ensures the data has been received
+  semaphore_free(reentry_semaphore);
+}
diff --git a/rtkbt/code/bt/hci/test/hci_layer_test.cpp b/rtkbt/code/bt/hci/test/hci_layer_test.cpp
new file mode 100755
index 0000000..9bfde62
--- /dev/null
+++ b/rtkbt/code/bt/hci/test/hci_layer_test.cpp
@@ -0,0 +1,756 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#include <gtest/gtest.h>
+
+#include "AlarmTestHarness.h"
+
+extern "C" {
+#include <stdint.h>
+
+#include "device/include/controller.h"
+#include "osi/include/allocation_tracker.h"
+#include "osi/include/allocator.h"
+#include "osi/include/osi.h"
+#include "osi/include/semaphore.h"
+#include "btsnoop.h"
+#include "hcimsgs.h"
+#include "hci_hal.h"
+#include "hci_inject.h"
+#include "hci_layer.h"
+#include "low_power_manager.h"
+#include "module.h"
+#include "packet_fragmenter.h"
+#include "test_stubs.h"
+#include "vendor.h"
+
+extern const module_t hci_module;
+}
+
+DECLARE_TEST_MODES(
+  start_up_async,
+  shut_down,
+  postload,
+  transmit_simple,
+  receive_simple,
+  transmit_command_no_callbacks,
+  transmit_command_command_status,
+  transmit_command_command_complete,
+  ignoring_packets_ignored_packet,
+  ignoring_packets_following_packet
+);
+
+static const char *small_sample_data = "\"It is easy to see,\" replied Don Quixote";
+static const char *command_sample_data = "that thou art not used to this business of adventures; those are giants";
+static const char *ignored_data = "and if thou art afraid, away with thee out of this and betake thyself to prayer";
+static const char *unignored_data = "while I engage them in fierce and unequal combat";
+
+static const hci_t *hci;
+static const hci_hal_callbacks_t *hal_callbacks;
+static thread_t *internal_thread;
+static vendor_cb firmware_config_callback;
+static vendor_cb sco_config_callback;
+static vendor_cb epilog_callback;
+static semaphore_t *done;
+static const uint16_t test_handle = (0x1992 & 0xCFFF);
+static const uint16_t test_handle_continuation = (0x1992 & 0xCFFF) | 0x1000;
+static int packet_index;
+static unsigned int data_size_sum;
+static BT_HDR *data_to_receive;
+
+static void signal_work_item(UNUSED_ATTR void *context) {
+  semaphore_post(done);
+}
+
+static void flush_thread(thread_t *thread) {
+  // Double flush to ensure we get the next reactor cycle
+  thread_post(thread, signal_work_item, NULL);
+  semaphore_wait(done);
+  thread_post(thread, signal_work_item, NULL);
+  semaphore_wait(done);
+}
+
+// TODO move this to a common packet testing helper
+static BT_HDR *manufacture_packet(uint16_t event, const char *data) {
+  uint16_t data_length = strlen(data);
+  uint16_t size = data_length;
+  if (event == MSG_STACK_TO_HC_HCI_ACL) {
+    size += 4; // 2 for the handle, 2 for the length;
+  }
+
+  BT_HDR *packet = (BT_HDR *)osi_malloc(size + sizeof(BT_HDR));
+  packet->len = size;
+  packet->offset = 0;
+  packet->layer_specific = 0;
+
+  // The command transmit interface adds the event type automatically.
+  // Make sure it works but omitting it here.
+  if (event != MSG_STACK_TO_HC_HCI_CMD)
+    packet->event = event;
+
+  uint8_t *packet_data = packet->data;
+
+  if (event == MSG_STACK_TO_HC_HCI_ACL) {
+    UINT16_TO_STREAM(packet_data, test_handle);
+    UINT16_TO_STREAM(packet_data, data_length);
+  }
+
+  for (int i = 0; i < data_length; i++) {
+    packet_data[i] = data[i];
+  }
+
+  if (event == MSG_STACK_TO_HC_HCI_CMD) {
+    STREAM_SKIP_UINT16(packet_data);
+    UINT8_TO_STREAM(packet_data, data_length - 3);
+  } else if (event == MSG_HC_TO_STACK_HCI_EVT) {
+    STREAM_SKIP_UINT8(packet_data);
+    UINT8_TO_STREAM(packet_data, data_length - 2);
+  }
+
+  return packet;
+}
+
+static void expect_packet(uint16_t event, int max_acl_data_size, const uint8_t *data, uint16_t data_length, const char *expected_data) {
+  int expected_data_offset;
+  int length_to_check;
+
+  if (event == MSG_STACK_TO_HC_HCI_ACL) {
+    uint16_t handle;
+    uint16_t length;
+    STREAM_TO_UINT16(handle, data);
+    STREAM_TO_UINT16(length, data);
+
+    if (packet_index == 0)
+      EXPECT_EQ(test_handle, handle);
+    else
+      EXPECT_EQ(test_handle_continuation, handle);
+
+    int length_remaining = strlen(expected_data) - data_size_sum;
+    int packet_data_length = data_length - HCI_ACL_PREAMBLE_SIZE;
+    EXPECT_EQ(length_remaining, length);
+
+    if (length_remaining < max_acl_data_size)
+      EXPECT_EQ(length, packet_data_length);
+    else
+      EXPECT_EQ(max_acl_data_size, packet_data_length);
+
+    length_to_check = packet_data_length;
+    expected_data_offset = packet_index * max_acl_data_size;
+    packet_index++;
+  } else {
+    length_to_check = strlen(expected_data);
+    expected_data_offset = 0;
+  }
+
+  for (int i = 0; i < length_to_check; i++) {
+    if (event == MSG_STACK_TO_HC_HCI_CMD && (i == 2))
+      EXPECT_EQ(data_length - 3, data[i]);
+    else
+      EXPECT_EQ(expected_data[expected_data_offset + i], data[i]);
+
+    data_size_sum++;
+  }
+}
+
+STUB_FUNCTION(bool, hal_init, (const hci_hal_callbacks_t *callbacks, thread_t *working_thread))
+  DURING(start_up_async) AT_CALL(0) {
+    hal_callbacks = callbacks;
+    internal_thread = working_thread;
+    return true;
+  }
+
+  UNEXPECTED_CALL;
+  return false;
+}
+
+STUB_FUNCTION(bool, hal_open, ())
+  DURING(start_up_async) AT_CALL(0) return true;
+  UNEXPECTED_CALL;
+  return false;
+}
+
+STUB_FUNCTION(void, hal_close, ())
+  DURING(shut_down) AT_CALL(0) return;
+  UNEXPECTED_CALL;
+}
+
+STUB_FUNCTION(uint16_t, hal_transmit_data, (serial_data_type_t type, uint8_t *data, uint16_t length))
+  DURING(transmit_simple) AT_CALL(0) {
+    EXPECT_EQ(DATA_TYPE_ACL, type);
+    expect_packet(MSG_STACK_TO_HC_HCI_ACL, 1021, data, length, small_sample_data);
+    return length;
+  }
+
+  DURING(
+      transmit_command_no_callbacks,
+      transmit_command_command_status,
+      transmit_command_command_complete
+    ) AT_CALL(0) {
+    EXPECT_EQ(DATA_TYPE_COMMAND, type);
+    expect_packet(MSG_STACK_TO_HC_HCI_CMD, 1021, data, length, command_sample_data);
+    return length;
+  }
+
+  UNEXPECTED_CALL;
+  return 0;
+}
+
+static size_t replay_data_to_receive(size_t max_size, uint8_t *buffer) {
+  for (size_t i = 0; i < max_size; i++) {
+    if (data_to_receive->offset >= data_to_receive->len)
+      break;
+
+    buffer[i] = data_to_receive->data[data_to_receive->offset++];
+
+    if (i == (max_size - 1))
+      return i + 1; // We return the length, not the index;
+  }
+
+  return 0;
+}
+
+STUB_FUNCTION(size_t, hal_read_data, (serial_data_type_t type, uint8_t *buffer, size_t max_size))
+  DURING(receive_simple, ignoring_packets_following_packet) {
+    EXPECT_EQ(DATA_TYPE_ACL, type);
+    return replay_data_to_receive(max_size, buffer);
+  }
+
+  DURING(ignoring_packets_ignored_packet) {
+    EXPECT_EQ(DATA_TYPE_EVENT, type);
+    return replay_data_to_receive(max_size, buffer);
+  }
+
+  DURING(
+      transmit_command_no_callbacks,
+      transmit_command_command_status,
+      transmit_command_command_complete) {
+    EXPECT_EQ(DATA_TYPE_EVENT, type);
+    return replay_data_to_receive(max_size, buffer);
+  }
+
+  UNEXPECTED_CALL;
+  return 0;
+}
+
+STUB_FUNCTION(void, hal_packet_finished, (serial_data_type_t type))
+  DURING(receive_simple, ignoring_packets_following_packet) AT_CALL(0) {
+    EXPECT_EQ(DATA_TYPE_ACL, type);
+    return;
+  }
+
+  DURING(ignoring_packets_ignored_packet) AT_CALL(0) {
+    EXPECT_EQ(DATA_TYPE_EVENT, type);
+    return;
+  }
+
+  DURING(
+      transmit_command_no_callbacks,
+      transmit_command_command_status,
+      transmit_command_command_complete
+    ) AT_CALL(0) {
+    EXPECT_EQ(DATA_TYPE_EVENT, type);
+    return;
+  }
+
+  UNEXPECTED_CALL;
+}
+
+STUB_FUNCTION(bool, hci_inject_open, (
+    UNUSED_ATTR const hci_t *hci_interface))
+  DURING(start_up_async) AT_CALL(0) return true;
+  UNEXPECTED_CALL;
+  return false;
+}
+
+STUB_FUNCTION(void, hci_inject_close, ())
+  DURING(shut_down) AT_CALL(0) return;
+  UNEXPECTED_CALL;
+}
+
+STUB_FUNCTION(void, btsnoop_capture, (const BT_HDR *buffer, bool is_received))
+  DURING(transmit_simple) AT_CALL(0) {
+    EXPECT_FALSE(is_received);
+    expect_packet(MSG_STACK_TO_HC_HCI_ACL, 1021, buffer->data + buffer->offset, buffer->len, small_sample_data);
+    packet_index = 0;
+    data_size_sum = 0;
+    return;
+  }
+
+
+  DURING(
+      transmit_command_no_callbacks,
+      transmit_command_command_status,
+      transmit_command_command_complete) {
+    AT_CALL(0) {
+      EXPECT_FALSE(is_received);
+      expect_packet(MSG_STACK_TO_HC_HCI_CMD, 1021, buffer->data + buffer->offset, buffer->len, command_sample_data);
+      packet_index = 0;
+      data_size_sum = 0;
+      return;
+    }
+    AT_CALL(1) {
+      EXPECT_TRUE(is_received);
+      // not super important to verify the contents right now
+      return;
+    }
+  }
+
+  DURING(
+      receive_simple,
+      ignoring_packets_following_packet
+    ) AT_CALL(0) {
+    EXPECT_TRUE(is_received);
+    EXPECT_TRUE(buffer->len == data_to_receive->len);
+    const uint8_t *buffer_base = buffer->data + buffer->offset;
+    const uint8_t *expected_base = data_to_receive->data;
+    for (int i = 0; i < buffer->len; i++) {
+      EXPECT_EQ(expected_base[i], buffer_base[i]);
+    }
+
+    return;
+  }
+
+  UNEXPECTED_CALL;
+}
+
+STUB_FUNCTION(void, low_power_init, (UNUSED_ATTR thread_t *thread))
+  DURING(start_up_async) AT_CALL(0) return;
+  UNEXPECTED_CALL;
+}
+
+STUB_FUNCTION(void, low_power_cleanup, ())
+  DURING(shut_down) AT_CALL(0) return;
+  UNEXPECTED_CALL;
+}
+
+STUB_FUNCTION(void, low_power_wake_assert, ())
+  DURING(
+      transmit_simple,
+      transmit_command_no_callbacks,
+      transmit_command_command_status,
+      transmit_command_command_complete) {
+    AT_CALL(0) return;
+  }
+
+  UNEXPECTED_CALL;
+}
+
+STUB_FUNCTION(void, low_power_transmit_done, ())
+  DURING(
+      transmit_simple,
+      transmit_command_no_callbacks,
+      transmit_command_command_status,
+      transmit_command_command_complete) {
+    AT_CALL(0) return;
+  }
+
+  UNEXPECTED_CALL;
+}
+
+STUB_FUNCTION(bool, vendor_open, (UNUSED_ATTR const uint8_t *addr, const hci_t *hci_interface))
+  DURING(start_up_async) AT_CALL(0) {
+    // TODO(zachoverflow): check address value when it gets put into a module
+    EXPECT_EQ(hci, hci_interface);
+    return true;
+  }
+
+  UNEXPECTED_CALL;
+  return true;
+}
+
+STUB_FUNCTION(void, vendor_close, ())
+  DURING(shut_down) AT_CALL(0) return;
+  UNEXPECTED_CALL;
+}
+
+STUB_FUNCTION(void, vendor_set_callback, (vendor_async_opcode_t opcode, UNUSED_ATTR vendor_cb callback))
+  DURING(start_up_async) {
+    AT_CALL(0) {
+      EXPECT_EQ(VENDOR_CONFIGURE_FIRMWARE, opcode);
+      firmware_config_callback = callback;
+      return;
+    }
+    AT_CALL(1) {
+      EXPECT_EQ(VENDOR_CONFIGURE_SCO, opcode);
+      sco_config_callback = callback;
+      return;
+    }
+    AT_CALL(2) {
+      EXPECT_EQ(VENDOR_DO_EPILOG, opcode);
+      epilog_callback = callback;
+      return;
+    }
+  }
+
+  UNEXPECTED_CALL;
+}
+
+STUB_FUNCTION(int, vendor_send_command, (vendor_opcode_t opcode, void *param))
+  DURING(start_up_async) {
+#if (defined (BT_CLEAN_TURN_ON_DISABLED) && BT_CLEAN_TURN_ON_DISABLED == TRUE)
+    AT_CALL(0) {
+      EXPECT_EQ(VENDOR_CHIP_POWER_CONTROL, opcode);
+      EXPECT_EQ(BT_VND_PWR_ON, *(int *)param);
+      return 0;
+    }
+#else
+    AT_CALL(0) {
+      EXPECT_EQ(VENDOR_CHIP_POWER_CONTROL, opcode);
+      EXPECT_EQ(BT_VND_PWR_OFF, *(int *)param);
+      return 0;
+    }
+    AT_CALL(1) {
+      EXPECT_EQ(VENDOR_CHIP_POWER_CONTROL, opcode);
+      EXPECT_EQ(BT_VND_PWR_ON, *(int *)param);
+      return 0;
+    }
+#endif
+  }
+
+  DURING(shut_down) AT_CALL(0) {
+    EXPECT_EQ(VENDOR_CHIP_POWER_CONTROL, opcode);
+    EXPECT_EQ(BT_VND_PWR_OFF, *(int *)param);
+    return 0;
+  }
+
+  UNEXPECTED_CALL;
+  return 0;
+}
+
+STUB_FUNCTION(int, vendor_send_async_command, (UNUSED_ATTR vendor_async_opcode_t opcode, UNUSED_ATTR void *param))
+  DURING(start_up_async) AT_CALL(0) {
+    EXPECT_EQ(VENDOR_CONFIGURE_FIRMWARE, opcode);
+    firmware_config_callback(true);
+    return 0;
+  }
+
+  DURING(postload) AT_CALL(0) {
+    EXPECT_EQ(VENDOR_CONFIGURE_SCO, opcode);
+    sco_config_callback(true);
+    return 0;
+  }
+
+  DURING(shut_down) AT_CALL(0) {
+    EXPECT_EQ(VENDOR_DO_EPILOG, opcode);
+    epilog_callback(true);
+    return 0;
+  }
+
+  UNEXPECTED_CALL;
+  return 0;
+}
+
+STUB_FUNCTION(void, command_complete_callback, (BT_HDR *response, UNUSED_ATTR void *context))
+  DURING(transmit_command_command_complete) AT_CALL(0) {
+    osi_free(response);
+    return;
+  }
+
+  UNEXPECTED_CALL;
+}
+
+STUB_FUNCTION(void, command_status_callback, (UNUSED_ATTR uint8_t status, BT_HDR *command, UNUSED_ATTR void *context))
+  DURING(transmit_command_command_status) AT_CALL(0) {
+    osi_free(command);
+    return;
+  }
+
+  UNEXPECTED_CALL;
+}
+
+STUB_FUNCTION(uint16_t, controller_get_acl_data_size_classic, (void))
+  return 2048;
+}
+
+STUB_FUNCTION(uint16_t, controller_get_acl_data_size_ble, (void))
+  return 2048;
+}
+
+STUB_FUNCTION(void *, buffer_allocator_alloc, (size_t size))
+  DURING(ignoring_packets_ignored_packet) {
+    AT_CALL(0)
+      return NULL;
+
+    UNEXPECTED_CALL;
+  }
+
+  return allocator_malloc.alloc(size);
+}
+
+STUB_FUNCTION(void, buffer_allocator_free, (void *ptr))
+  allocator_malloc.free(ptr);
+}
+
+static void reset_for(TEST_MODES_T next) {
+  RESET_CALL_COUNT(vendor_open);
+  RESET_CALL_COUNT(vendor_close);
+  RESET_CALL_COUNT(vendor_set_callback);
+  RESET_CALL_COUNT(vendor_send_command);
+  RESET_CALL_COUNT(vendor_send_async_command);
+  RESET_CALL_COUNT(hal_init);
+  RESET_CALL_COUNT(hal_open);
+  RESET_CALL_COUNT(hal_close);
+  RESET_CALL_COUNT(hal_read_data);
+  RESET_CALL_COUNT(hal_packet_finished);
+  RESET_CALL_COUNT(hal_transmit_data);
+  RESET_CALL_COUNT(btsnoop_capture);
+  RESET_CALL_COUNT(hci_inject_open);
+  RESET_CALL_COUNT(hci_inject_close);
+  RESET_CALL_COUNT(low_power_init);
+  RESET_CALL_COUNT(low_power_cleanup);
+  RESET_CALL_COUNT(low_power_wake_assert);
+  RESET_CALL_COUNT(low_power_transmit_done);
+  RESET_CALL_COUNT(command_complete_callback);
+  RESET_CALL_COUNT(command_status_callback);
+  RESET_CALL_COUNT(controller_get_acl_data_size_classic);
+  RESET_CALL_COUNT(controller_get_acl_data_size_ble);
+  RESET_CALL_COUNT(buffer_allocator_alloc);
+  RESET_CALL_COUNT(buffer_allocator_free);
+  CURRENT_TEST_MODE = next;
+}
+
+class HciLayerTest : public AlarmTestHarness {
+  protected:
+    virtual void SetUp() {
+      AlarmTestHarness::SetUp();
+      module_management_start();
+
+      hci = hci_layer_get_test_interface(
+        &buffer_allocator,
+        &hal,
+        &btsnoop,
+        &hci_inject,
+        packet_fragmenter_get_test_interface(&controller, &allocator_malloc),
+        &vendor,
+        &low_power_manager
+      );
+
+      packet_index = 0;
+      data_size_sum = 0;
+
+      vendor.open = vendor_open;
+      vendor.close = vendor_close;
+      vendor.set_callback = vendor_set_callback;
+      vendor.send_command = vendor_send_command;
+      vendor.send_async_command = vendor_send_async_command;
+      hal.init = hal_init;
+      hal.open = hal_open;
+      hal.close = hal_close;
+      hal.read_data = hal_read_data;
+      hal.packet_finished = hal_packet_finished;
+      hal.transmit_data = hal_transmit_data;
+      btsnoop.capture = btsnoop_capture;
+      hci_inject.open = hci_inject_open;
+      hci_inject.close = hci_inject_close;
+      low_power_manager.init = low_power_init;
+      low_power_manager.cleanup = low_power_cleanup;
+      low_power_manager.wake_assert = low_power_wake_assert;
+      low_power_manager.transmit_done = low_power_transmit_done;
+      controller.get_acl_data_size_classic = controller_get_acl_data_size_classic;
+      controller.get_acl_data_size_ble = controller_get_acl_data_size_ble;
+      buffer_allocator.alloc = buffer_allocator_alloc;
+      buffer_allocator.free = buffer_allocator_free;
+
+      done = semaphore_new(0);
+
+      reset_for(start_up_async);
+      EXPECT_TRUE(module_start_up(&hci_module));
+
+      EXPECT_CALL_COUNT(vendor_open, 1);
+      EXPECT_CALL_COUNT(hal_init, 1);
+      EXPECT_CALL_COUNT(low_power_init, 1);
+      EXPECT_CALL_COUNT(vendor_set_callback, 3);
+      EXPECT_CALL_COUNT(hal_open, 1);
+      EXPECT_CALL_COUNT(vendor_send_async_command, 1);
+    }
+
+    virtual void TearDown() {
+      reset_for(shut_down);
+      module_shut_down(&hci_module);
+
+      EXPECT_CALL_COUNT(low_power_cleanup, 1);
+      EXPECT_CALL_COUNT(hal_close, 1);
+      EXPECT_CALL_COUNT(vendor_send_command, 1);
+      EXPECT_CALL_COUNT(vendor_close, 1);
+
+      semaphore_free(done);
+      hci_layer_cleanup_interface();
+      module_management_stop();
+      AlarmTestHarness::TearDown();
+    }
+
+    hci_hal_t hal;
+    btsnoop_t btsnoop;
+    controller_t controller;
+    hci_inject_t hci_inject;
+    vendor_t vendor;
+    low_power_manager_t low_power_manager;
+    allocator_t buffer_allocator;
+};
+
+TEST_F(HciLayerTest, test_postload) {
+  reset_for(postload);
+  hci->do_postload();
+
+  flush_thread(internal_thread);
+  EXPECT_CALL_COUNT(vendor_send_async_command, 1);
+}
+
+TEST_F(HciLayerTest, test_transmit_simple) {
+  reset_for(transmit_simple);
+  BT_HDR *packet = manufacture_packet(MSG_STACK_TO_HC_HCI_ACL, small_sample_data);
+  hci->transmit_downward(MSG_STACK_TO_HC_HCI_ACL, packet);
+
+  flush_thread(internal_thread);
+  EXPECT_CALL_COUNT(hal_transmit_data, 1);
+  EXPECT_CALL_COUNT(btsnoop_capture, 1);
+  EXPECT_CALL_COUNT(low_power_transmit_done, 1);
+  EXPECT_CALL_COUNT(low_power_wake_assert, 1);
+}
+
+TEST_F(HciLayerTest, test_receive_simple) {
+  reset_for(receive_simple);
+  data_to_receive = manufacture_packet(MSG_STACK_TO_HC_HCI_ACL, small_sample_data);
+
+  // Not running on the internal thread, unlike the real hal
+  hal_callbacks->data_ready(DATA_TYPE_ACL);
+  EXPECT_CALL_COUNT(hal_packet_finished, 1);
+  EXPECT_CALL_COUNT(btsnoop_capture, 1);
+
+  osi_free(data_to_receive);
+}
+
+static BT_HDR *manufacture_command_complete(command_opcode_t opcode) {
+  BT_HDR *ret = (BT_HDR *)osi_calloc(sizeof(BT_HDR) + 5);
+  uint8_t *stream = ret->data;
+  UINT8_TO_STREAM(stream, HCI_COMMAND_COMPLETE_EVT);
+  UINT8_TO_STREAM(stream, 3); // length of the event parameters
+  UINT8_TO_STREAM(stream, 1); // the number of commands that can be sent
+  UINT16_TO_STREAM(stream, opcode);
+  ret->len = 5;
+
+  return ret;
+}
+
+static BT_HDR *manufacture_command_status(command_opcode_t opcode) {
+  BT_HDR *ret = (BT_HDR *)osi_calloc(sizeof(BT_HDR) + 6);
+  uint8_t *stream = ret->data;
+  UINT8_TO_STREAM(stream, HCI_COMMAND_STATUS_EVT);
+  UINT8_TO_STREAM(stream, 4); // length of the event parameters
+  UINT8_TO_STREAM(stream, HCI_PENDING); // status
+  UINT8_TO_STREAM(stream, 1); // the number of commands that can be sent
+  UINT16_TO_STREAM(stream, opcode);
+  ret->len = 6;
+
+  return ret;
+}
+
+TEST_F(HciLayerTest, test_transmit_command_no_callbacks) {
+  // Send a test command
+  reset_for(transmit_command_no_callbacks);
+  data_to_receive = manufacture_packet(MSG_STACK_TO_HC_HCI_CMD, command_sample_data);
+  hci->transmit_command(data_to_receive, NULL, NULL, NULL);
+
+  flush_thread(internal_thread);
+  EXPECT_CALL_COUNT(hal_transmit_data, 1);
+  EXPECT_CALL_COUNT(btsnoop_capture, 1);
+  EXPECT_CALL_COUNT(low_power_transmit_done, 1);
+  EXPECT_CALL_COUNT(low_power_wake_assert, 1);
+
+  // Send a response
+  command_opcode_t opcode = *((uint16_t *)command_sample_data);
+  data_to_receive = manufacture_command_complete(opcode);
+
+  hal_callbacks->data_ready(DATA_TYPE_EVENT);
+  EXPECT_CALL_COUNT(hal_packet_finished, 1);
+  EXPECT_CALL_COUNT(btsnoop_capture, 2);
+
+  osi_free(data_to_receive);
+}
+
+TEST_F(HciLayerTest, test_transmit_command_command_status) {
+  // Send a test command
+  reset_for(transmit_command_command_status);
+  data_to_receive = manufacture_packet(MSG_STACK_TO_HC_HCI_CMD, command_sample_data);
+  hci->transmit_command(data_to_receive, command_complete_callback, command_status_callback, NULL);
+
+  flush_thread(internal_thread);
+  EXPECT_CALL_COUNT(hal_transmit_data, 1);
+  EXPECT_CALL_COUNT(btsnoop_capture, 1);
+  EXPECT_CALL_COUNT(low_power_transmit_done, 1);
+  EXPECT_CALL_COUNT(low_power_wake_assert, 1);
+
+  command_opcode_t opcode = *((uint16_t *)command_sample_data);
+
+  // Send status event response
+  data_to_receive = manufacture_command_status(opcode);
+
+  hal_callbacks->data_ready(DATA_TYPE_EVENT);
+  EXPECT_CALL_COUNT(hal_packet_finished, 1);
+  EXPECT_CALL_COUNT(btsnoop_capture, 2);
+  EXPECT_CALL_COUNT(command_status_callback, 1);
+
+  osi_free(data_to_receive);
+}
+
+TEST_F(HciLayerTest, test_transmit_command_command_complete) {
+  // Send a test command
+  reset_for(transmit_command_command_complete);
+  data_to_receive = manufacture_packet(MSG_STACK_TO_HC_HCI_CMD, command_sample_data);
+  hci->transmit_command(data_to_receive, command_complete_callback, command_status_callback, NULL);
+
+  flush_thread(internal_thread);
+  EXPECT_CALL_COUNT(hal_transmit_data, 1);
+  EXPECT_CALL_COUNT(btsnoop_capture, 1);
+  EXPECT_CALL_COUNT(low_power_transmit_done, 1);
+  EXPECT_CALL_COUNT(low_power_wake_assert, 1);
+
+  command_opcode_t opcode = *((uint16_t *)command_sample_data);
+
+  // Send complete event response
+  data_to_receive = manufacture_command_complete(opcode);
+
+  hal_callbacks->data_ready(DATA_TYPE_EVENT);
+  EXPECT_CALL_COUNT(hal_packet_finished, 1);
+  EXPECT_CALL_COUNT(btsnoop_capture, 2);
+  EXPECT_CALL_COUNT(command_complete_callback, 1);
+
+  osi_free(data_to_receive);
+}
+
+TEST_F(HciLayerTest, test_ignoring_packets) {
+  reset_for(ignoring_packets_ignored_packet);
+  data_to_receive = manufacture_packet(MSG_HC_TO_STACK_HCI_EVT, unignored_data);
+
+  hal_callbacks->data_ready(DATA_TYPE_EVENT);
+  EXPECT_CALL_COUNT(buffer_allocator_alloc, 1);
+  EXPECT_CALL_COUNT(hal_packet_finished, 1);
+  EXPECT_CALL_COUNT(btsnoop_capture, 0);
+  osi_free(data_to_receive);
+
+  reset_for(ignoring_packets_following_packet);
+  data_to_receive = manufacture_packet(MSG_STACK_TO_HC_HCI_ACL, ignored_data);
+
+  hal_callbacks->data_ready(DATA_TYPE_ACL);
+  EXPECT_CALL_COUNT(buffer_allocator_alloc, 1);
+  EXPECT_CALL_COUNT(hal_packet_finished, 1);
+  EXPECT_CALL_COUNT(btsnoop_capture, 1);
+  osi_free(data_to_receive);
+}
+
+// TODO(zachoverflow): test post-reassembly better, stub out fragmenter instead of using it
diff --git a/rtkbt/code/bt/hci/test/low_power_manager_test.cpp b/rtkbt/code/bt/hci/test/low_power_manager_test.cpp
new file mode 100755
index 0000000..0cc76fa
--- /dev/null
+++ b/rtkbt/code/bt/hci/test/low_power_manager_test.cpp
@@ -0,0 +1,140 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#include <gtest/gtest.h>
+
+#include "AlarmTestHarness.h"
+
+extern "C" {
+#include <stdint.h>
+
+#include "low_power_manager.h"
+#include "osi/include/osi.h"
+#include "osi/include/semaphore.h"
+#include "osi/include/thread.h"
+#include "test_stubs.h"
+#include "vendor.h"
+}
+
+DECLARE_TEST_MODES(
+  init,
+  cleanup,
+  enable_disable
+);
+
+static const low_power_manager_t *manager;
+static thread_t *thread;
+static semaphore_t *done;
+
+static vendor_cb low_power_state_callback;
+
+static void flush_work_queue_item(UNUSED_ATTR void *context) {
+  semaphore_post(done);
+}
+
+STUB_FUNCTION(int, vendor_send_command, (vendor_opcode_t opcode, void *param))
+  DURING(enable_disable) AT_CALL(0) {
+    EXPECT_EQ(VENDOR_GET_LPM_IDLE_TIMEOUT, opcode);
+    *((uint32_t *)param) = 100;
+    return 0;
+  }
+
+  UNEXPECTED_CALL;
+  return 0;
+}
+
+STUB_FUNCTION(int, vendor_send_async_command, (vendor_async_opcode_t opcode, void *param))
+  DURING(enable_disable) {
+    AT_CALL(0) {
+      EXPECT_EQ(VENDOR_SET_LPM_MODE, opcode);
+      EXPECT_EQ(BT_VND_LPM_ENABLE, *(uint8_t *)param);
+      low_power_state_callback(true);
+      thread_post(thread, flush_work_queue_item, NULL);
+      return 0;
+    }
+    AT_CALL(1) {
+      EXPECT_EQ(VENDOR_SET_LPM_MODE, opcode);
+      EXPECT_EQ(BT_VND_LPM_DISABLE, *(uint8_t *)param);
+      low_power_state_callback(true);
+      thread_post(thread, flush_work_queue_item, NULL);
+      return 0;
+    }
+  }
+
+  UNEXPECTED_CALL;
+  return 0;
+}
+
+STUB_FUNCTION(void, vendor_set_callback, (vendor_async_opcode_t opcode, vendor_cb callback))
+  DURING(init) AT_CALL(0) {
+    EXPECT_EQ(VENDOR_SET_LPM_MODE, opcode);
+    low_power_state_callback = callback;
+    return;
+  }
+
+  UNEXPECTED_CALL;
+}
+
+static void reset_for(TEST_MODES_T next) {
+  RESET_CALL_COUNT(vendor_send_command);
+  RESET_CALL_COUNT(vendor_send_async_command);
+  RESET_CALL_COUNT(vendor_set_callback);
+  CURRENT_TEST_MODE = next;
+}
+
+class LowPowerManagerTest : public AlarmTestHarness {
+  protected:
+    virtual void SetUp() {
+      AlarmTestHarness::SetUp();
+      low_power_state_callback = NULL;
+      vendor.send_command = vendor_send_command;
+      vendor.send_async_command = vendor_send_async_command;
+      vendor.set_callback = vendor_set_callback;
+      manager = low_power_manager_get_test_interface(&vendor);
+      thread = thread_new("test_thread");
+      done = semaphore_new(0);
+
+      reset_for(init);
+      manager->init(thread);
+
+      EXPECT_CALL_COUNT(vendor_set_callback, 1);
+    }
+
+    virtual void TearDown() {
+      reset_for(cleanup);
+      manager->cleanup();
+
+      semaphore_free(done);
+      thread_free(thread);
+      AlarmTestHarness::TearDown();
+    }
+
+    vendor_t vendor;
+};
+
+TEST_F(LowPowerManagerTest, test_enable_disable) {
+  reset_for(enable_disable);
+  manager->post_command(LPM_ENABLE);
+  semaphore_wait(done);
+
+  manager->post_command(LPM_DISABLE);
+  semaphore_wait(done);
+
+  EXPECT_CALL_COUNT(vendor_send_command, 1);
+  EXPECT_CALL_COUNT(vendor_send_async_command, 2);
+}
diff --git a/rtkbt/code/bt/hci/test/packet_fragmenter_test.cpp b/rtkbt/code/bt/hci/test/packet_fragmenter_test.cpp
new file mode 100755
index 0000000..2924fe9
--- /dev/null
+++ b/rtkbt/code/bt/hci/test/packet_fragmenter_test.cpp
@@ -0,0 +1,378 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#include <gtest/gtest.h>
+
+#include "AllocationTestHarness.h"
+
+extern "C" {
+#include <stdint.h>
+
+#include "device/include/controller.h"
+#include "osi/include/allocator.h"
+#include "osi/include/osi.h"
+#include "hci_internals.h"
+#include "packet_fragmenter.h"
+#include "test_stubs.h"
+}
+
+DECLARE_TEST_MODES(
+  init,
+  set_data_sizes,
+  no_fragmentation,
+  fragmentation,
+  ble_no_fragmentation,
+  ble_fragmentation,
+  non_acl_passthrough_fragmentation,
+  no_reassembly,
+  reassembly,
+  non_acl_passthrough_reassembly
+);
+
+#define LOCAL_BLE_CONTROLLER_ID 1
+
+static const char *sample_data =
+  "At this point they came in sight of thirty forty windmills that there are on plain, and "
+  "as soon as Don Quixote saw them he said to his squire, \"Fortune is arranging matters "
+  "for us better than we could have shaped our desires ourselves, for look there, friend "
+  "Sancho Panza, where thirty or more monstrous giants present themselves, all of whom I "
+  "mean to engage in battle and slay, and with whose spoils we shall begin to make our "
+  "fortunes; for this is righteous warfare, and it is God's good service to sweep so evil "
+  "a breed from off the face of the earth.\"";
+
+static const char *small_sample_data = "\"What giants?\" said Sancho Panza.";
+static const uint16_t test_handle_start = (0x1992 & 0xCFFF) | 0x2000;
+static const uint16_t test_handle_continuation = (0x1992 & 0xCFFF) | 0x1000;
+static int packet_index;
+static unsigned int data_size_sum;
+
+static const packet_fragmenter_t *fragmenter;
+
+static BT_HDR *manufacture_packet_for_fragmentation(uint16_t event, const char *data) {
+  uint16_t data_length = strlen(data);
+  uint16_t size = data_length;
+  if (event == MSG_STACK_TO_HC_HCI_ACL) {
+    size += 4; // 2 for the handle, 2 for the length;
+  }
+
+  BT_HDR *packet = (BT_HDR *)osi_malloc(size + sizeof(BT_HDR));
+  packet->len = size;
+  packet->offset = 0;
+  packet->event = event;
+  packet->layer_specific = 0;
+  uint8_t *packet_data = packet->data;
+
+  if (event == MSG_STACK_TO_HC_HCI_ACL) {
+    UINT16_TO_STREAM(packet_data, test_handle_start);
+    UINT16_TO_STREAM(packet_data, data_length);
+  }
+
+  memcpy(packet_data, data, data_length);
+  return packet;
+}
+
+static void expect_packet_fragmented(uint16_t event, int max_acl_data_size, BT_HDR *packet, const char *expected_data, bool send_complete) {
+  uint8_t *data = packet->data + packet->offset;
+  int expected_data_offset;
+  int length_to_check;
+
+  if (event == MSG_STACK_TO_HC_HCI_ACL) {
+    uint16_t handle;
+    uint16_t length;
+    STREAM_TO_UINT16(handle, data);
+    STREAM_TO_UINT16(length, data);
+
+    if (packet_index == 0)
+      EXPECT_EQ(test_handle_start, handle);
+    else
+      EXPECT_EQ(test_handle_continuation, handle);
+
+    int length_remaining = strlen(expected_data) - data_size_sum;
+    int packet_data_length = packet->len - HCI_ACL_PREAMBLE_SIZE;
+    EXPECT_EQ(packet_data_length, length);
+
+    if (length_remaining > max_acl_data_size)
+      EXPECT_EQ(max_acl_data_size, packet_data_length);
+
+    length_to_check = packet_data_length;
+    expected_data_offset = packet_index * max_acl_data_size;
+    packet_index++;
+  } else {
+    length_to_check = strlen(expected_data);
+    expected_data_offset = 0;
+  }
+
+  for (int i = 0; i < length_to_check; i++) {
+    EXPECT_EQ(expected_data[expected_data_offset + i], data[i]);
+    data_size_sum++;
+  }
+
+  if (event == MSG_STACK_TO_HC_HCI_ACL)
+    EXPECT_TRUE(send_complete == (data_size_sum == strlen(expected_data)));
+
+  if (send_complete)
+    osi_free(packet);
+}
+
+static void manufacture_packet_and_then_reassemble(uint16_t event, uint16_t acl_size, const char *data) {
+  uint16_t data_length = strlen(data);
+
+  if (event == MSG_HC_TO_STACK_HCI_ACL) {
+    uint16_t total_length = data_length + 2; // 2 for l2cap length;
+    uint16_t length_sent = 0;
+    uint16_t l2cap_length = data_length - 2; // l2cap length field, 2 for the pretend channel id borrowed from the data
+
+    do {
+      int length_to_send = (length_sent + (acl_size - 4) < total_length) ? (acl_size - 4) : (total_length - length_sent);
+      BT_HDR *packet = (BT_HDR *)osi_malloc(length_to_send + 4 + sizeof(BT_HDR));
+      packet->len = length_to_send + 4;
+      packet->offset = 0;
+      packet->event = event;
+      packet->layer_specific = 0;
+
+      uint8_t *packet_data = packet->data;
+      if (length_sent == 0) { // first packet
+        UINT16_TO_STREAM(packet_data, test_handle_start);
+        UINT16_TO_STREAM(packet_data, length_to_send);
+        UINT16_TO_STREAM(packet_data, l2cap_length);
+        memcpy(packet_data, data, length_to_send - 2);
+      } else {
+        UINT16_TO_STREAM(packet_data, test_handle_continuation);
+        UINT16_TO_STREAM(packet_data, length_to_send);
+        memcpy(packet_data, data + length_sent - 2, length_to_send);
+      }
+
+      length_sent += length_to_send;
+      fragmenter->reassemble_and_dispatch(packet);
+    } while (length_sent < total_length);
+  } else {
+    BT_HDR *packet = (BT_HDR *)osi_malloc(data_length + sizeof(BT_HDR));
+    packet->len = data_length;
+    packet->offset = 0;
+    packet->event = event;
+    packet->layer_specific = 0;
+    memcpy(packet->data, data, data_length);
+
+    fragmenter->reassemble_and_dispatch(packet);
+  }
+}
+
+static void expect_packet_reassembled(uint16_t event, BT_HDR *packet, const char *expected_data) {
+  uint16_t expected_data_length = strlen(expected_data);
+  uint8_t *data = packet->data + packet->offset;
+
+  if (event == MSG_HC_TO_STACK_HCI_ACL) {
+    uint16_t handle;
+    uint16_t length;
+    uint16_t l2cap_length;
+    STREAM_TO_UINT16(handle, data);
+    STREAM_TO_UINT16(length, data);
+    STREAM_TO_UINT16(l2cap_length, data);
+
+    EXPECT_EQ(test_handle_start, handle);
+    EXPECT_EQ(expected_data_length + 2, length);
+    EXPECT_EQ(expected_data_length - 2, l2cap_length); // -2 for the pretend channel id
+  }
+
+
+  for (int i = 0; i < expected_data_length; i++) {
+    EXPECT_EQ(expected_data[i], data[i]);
+    data_size_sum++;
+  }
+
+  osi_free(packet);
+}
+
+STUB_FUNCTION(void, fragmented_callback, (BT_HDR *packet, bool send_complete))
+  DURING(no_fragmentation) AT_CALL(0) {
+    expect_packet_fragmented(MSG_STACK_TO_HC_HCI_ACL, 42, packet, small_sample_data, send_complete);
+    return;
+  }
+
+  DURING(fragmentation) {
+    expect_packet_fragmented(MSG_STACK_TO_HC_HCI_ACL, 10, packet, sample_data, send_complete);
+    return;
+  }
+
+  DURING(ble_no_fragmentation) AT_CALL(0) {
+    expect_packet_fragmented(MSG_STACK_TO_HC_HCI_ACL, 42, packet, small_sample_data, send_complete);
+    return;
+  }
+
+  DURING(ble_fragmentation) {
+    expect_packet_fragmented(MSG_STACK_TO_HC_HCI_ACL, 10, packet, sample_data, send_complete);
+    return;
+  }
+
+  DURING(non_acl_passthrough_fragmentation) AT_CALL(0) {
+    expect_packet_fragmented(MSG_STACK_TO_HC_HCI_CMD, 10, packet, sample_data, send_complete);
+    return;
+  }
+
+  UNEXPECTED_CALL;
+}
+
+STUB_FUNCTION(void, reassembled_callback, (BT_HDR *packet))
+  DURING(no_reassembly) AT_CALL(0) {
+    expect_packet_reassembled(MSG_HC_TO_STACK_HCI_ACL, packet, small_sample_data);
+    return;
+  }
+
+  DURING(reassembly) AT_CALL(0) {
+    expect_packet_reassembled(MSG_HC_TO_STACK_HCI_ACL, packet, sample_data);
+    return;
+  }
+
+  DURING(non_acl_passthrough_reassembly) AT_CALL(0) {
+    expect_packet_reassembled(MSG_HC_TO_STACK_HCI_EVT, packet, sample_data);
+    return;
+  }
+
+  UNEXPECTED_CALL;
+}
+
+STUB_FUNCTION(void, transmit_finished_callback, (UNUSED_ATTR BT_HDR *packet, UNUSED_ATTR bool sent_all_fragments))
+  UNEXPECTED_CALL;
+}
+
+STUB_FUNCTION(uint16_t, get_acl_data_size_classic, (void))
+  DURING(no_fragmentation,
+         non_acl_passthrough_fragmentation,
+         no_reassembly) return 42;
+  DURING(fragmentation) return 10;
+  DURING(no_reassembly) return 1337;
+
+  UNEXPECTED_CALL;
+  return 0;
+}
+
+STUB_FUNCTION(uint16_t, get_acl_data_size_ble, (void))
+  DURING(ble_no_fragmentation) return 42;
+  DURING(ble_fragmentation) return 10;
+
+  UNEXPECTED_CALL;
+  return 0;
+}
+
+static void reset_for(TEST_MODES_T next) {
+  RESET_CALL_COUNT(fragmented_callback);
+  RESET_CALL_COUNT(reassembled_callback);
+  RESET_CALL_COUNT(transmit_finished_callback);
+  RESET_CALL_COUNT(get_acl_data_size_classic);
+  RESET_CALL_COUNT(get_acl_data_size_ble);
+  CURRENT_TEST_MODE = next;
+}
+
+class PacketFragmenterTest : public AllocationTestHarness {
+  protected:
+    virtual void SetUp() {
+      AllocationTestHarness::SetUp();
+      fragmenter = packet_fragmenter_get_test_interface(
+        &controller,
+        &allocator_malloc);
+
+      packet_index = 0;
+      data_size_sum = 0;
+
+      callbacks.fragmented = fragmented_callback;
+      callbacks.reassembled = reassembled_callback;
+      callbacks.transmit_finished = transmit_finished_callback;
+      controller.get_acl_data_size_classic = get_acl_data_size_classic;
+      controller.get_acl_data_size_ble = get_acl_data_size_ble;
+
+      reset_for(init);
+      fragmenter->init(&callbacks);
+    }
+
+    virtual void TearDown() {
+      fragmenter->cleanup();
+      AllocationTestHarness::TearDown();
+    }
+
+    controller_t controller;
+    packet_fragmenter_callbacks_t callbacks;
+};
+
+TEST_F(PacketFragmenterTest, test_no_fragment_necessary) {
+  reset_for(no_fragmentation);
+  BT_HDR *packet = manufacture_packet_for_fragmentation(MSG_STACK_TO_HC_HCI_ACL, small_sample_data);
+  fragmenter->fragment_and_dispatch(packet);
+
+  EXPECT_EQ(strlen(small_sample_data), data_size_sum);
+  EXPECT_CALL_COUNT(fragmented_callback, 1);
+}
+
+TEST_F(PacketFragmenterTest, test_fragment_necessary) {
+  reset_for(fragmentation);
+  BT_HDR *packet = manufacture_packet_for_fragmentation(MSG_STACK_TO_HC_HCI_ACL, sample_data);
+  fragmenter->fragment_and_dispatch(packet);
+
+  EXPECT_EQ(strlen(sample_data), data_size_sum);
+}
+
+TEST_F(PacketFragmenterTest, test_ble_no_fragment_necessary) {
+  reset_for(ble_no_fragmentation);
+  BT_HDR *packet = manufacture_packet_for_fragmentation(MSG_STACK_TO_HC_HCI_ACL, small_sample_data);
+  packet->event |= LOCAL_BLE_CONTROLLER_ID;
+  fragmenter->fragment_and_dispatch(packet);
+
+  EXPECT_EQ(strlen(small_sample_data), data_size_sum);
+  EXPECT_CALL_COUNT(fragmented_callback, 1);
+}
+
+TEST_F(PacketFragmenterTest, test_ble_fragment_necessary) {
+  reset_for(ble_fragmentation);
+  BT_HDR *packet = manufacture_packet_for_fragmentation(MSG_STACK_TO_HC_HCI_ACL, sample_data);
+  packet->event |= LOCAL_BLE_CONTROLLER_ID;
+  fragmenter->fragment_and_dispatch(packet);
+
+  EXPECT_EQ(strlen(sample_data), data_size_sum);
+}
+
+TEST_F(PacketFragmenterTest, test_non_acl_passthrough_fragmentation) {
+  reset_for(non_acl_passthrough_fragmentation);
+  BT_HDR *packet = manufacture_packet_for_fragmentation(MSG_STACK_TO_HC_HCI_CMD, sample_data);
+  fragmenter->fragment_and_dispatch(packet);
+
+  EXPECT_EQ(strlen(sample_data), data_size_sum);
+  EXPECT_CALL_COUNT(fragmented_callback, 1);
+}
+
+TEST_F(PacketFragmenterTest, test_no_reassembly_necessary) {
+  reset_for(no_reassembly);
+  manufacture_packet_and_then_reassemble(MSG_HC_TO_STACK_HCI_ACL, 1337, small_sample_data);
+
+  EXPECT_EQ(strlen(small_sample_data), data_size_sum);
+  EXPECT_CALL_COUNT(reassembled_callback, 1);
+}
+
+TEST_F(PacketFragmenterTest, test_reassembly_necessary) {
+  reset_for(reassembly);
+  manufacture_packet_and_then_reassemble(MSG_HC_TO_STACK_HCI_ACL, 42, sample_data);
+
+  EXPECT_EQ(strlen(sample_data), data_size_sum);
+  EXPECT_CALL_COUNT(reassembled_callback, 1);
+}
+
+TEST_F(PacketFragmenterTest, test_non_acl_passthrough_reasseembly) {
+  reset_for(non_acl_passthrough_reassembly);
+  manufacture_packet_and_then_reassemble(MSG_HC_TO_STACK_HCI_EVT, 42, sample_data);
+
+  EXPECT_EQ(strlen(sample_data), data_size_sum);
+  EXPECT_CALL_COUNT(reassembled_callback, 1);
+}
diff --git a/rtkbt/code/bt/include/bt_common.h b/rtkbt/code/bt/include/bt_common.h
new file mode 100755
index 0000000..9501c50
--- /dev/null
+++ b/rtkbt/code/bt/include/bt_common.h
@@ -0,0 +1,23 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2015 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+#include "bt_target.h"
+#include "bt_types.h"
+#include "osi/include/allocator.h"
diff --git a/rtkbt/code/bt/include/bt_target.h b/rtkbt/code/bt/include/bt_target.h
new file mode 100755
index 0000000..45e2e78
--- /dev/null
+++ b/rtkbt/code/bt/include/bt_target.h
@@ -0,0 +1,1558 @@
+/******************************************************************************
+ *
+ *  Copyright (c) 2014 The Android Open Source Project
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#ifndef BT_TARGET_H
+#define BT_TARGET_H
+
+#ifndef BUILDCFG
+#define BUILDCFG
+#endif
+
+#if !defined(HAS_BDROID_BUILDCFG) && !defined(HAS_NO_BDROID_BUILDCFG)
+#error "An Android.mk file did not include bdroid_CFLAGS and possibly not bdorid_C_INCLUDES"
+#endif
+
+#ifdef HAS_BDROID_BUILDCFG
+#include "bdroid_buildcfg.h"
+#endif
+
+#include "bt_types.h"   /* This must be defined AFTER buildcfg.h */
+
+/* Include common GKI definitions used by this platform */
+#include "dyn_mem.h"    /* defines static and/or dynamic memory for components */
+
+//------------------Added from bdroid_buildcfg.h---------------------
+#ifndef L2CAP_EXTFEA_SUPPORTED_MASK
+#define L2CAP_EXTFEA_SUPPORTED_MASK (L2CAP_EXTFEA_ENH_RETRANS | L2CAP_EXTFEA_STREAM_MODE | L2CAP_EXTFEA_NO_CRC | L2CAP_EXTFEA_FIXED_CHNLS)
+#endif
+
+#ifndef BTUI_OPS_FORMATS
+#define BTUI_OPS_FORMATS (BTA_OP_VCARD21_MASK | BTA_OP_ANY_MASK)
+#endif
+
+#ifndef BTA_RFC_MTU_SIZE
+#define BTA_RFC_MTU_SIZE (L2CAP_MTU_SIZE-L2CAP_MIN_OFFSET-RFCOMM_DATA_OVERHEAD)
+#endif
+
+#ifndef SBC_NO_PCM_CPY_OPTION
+#define SBC_NO_PCM_CPY_OPTION FALSE
+#endif
+
+#ifndef BTA_INCLUDED
+#define BTA_INCLUDED TRUE
+#endif
+
+#ifndef BTA_PAN_INCLUDED
+#define BTA_PAN_INCLUDED TRUE
+#endif
+
+#ifndef BTA_HH_INCLUDED
+#define BTA_HH_INCLUDED TRUE
+#endif
+
+#ifndef BTA_HH_ROLE
+#define BTA_HH_ROLE BTA_MASTER_ROLE_PREF
+#endif
+
+#ifndef BTA_HH_LE_INCLUDED
+#define BTA_HH_LE_INCLUDED TRUE
+#endif
+
+#ifndef BTA_AR_INCLUDED
+#define BTA_AR_INCLUDED TRUE
+#endif
+
+#ifndef BTA_AV_INCLUDED
+#define BTA_AV_INCLUDED TRUE
+#endif
+
+#ifndef BTA_GATT_INCLUDED
+#define BTA_GATT_INCLUDED TRUE
+#endif
+
+#ifndef BTA_AV_SINK_INCLUDED
+#define BTA_AV_SINK_INCLUDED FALSE
+#endif
+
+#ifndef BTA_DISABLE_DELAY
+#define BTA_DISABLE_DELAY 200 /* in milliseconds */
+#endif
+
+#ifndef SBC_FOR_EMBEDDED_LINUX
+#define SBC_FOR_EMBEDDED_LINUX TRUE
+#endif
+
+#ifndef AVDT_VERSION
+#define AVDT_VERSION  0x0102
+#endif
+
+#ifndef BTA_AG_AT_MAX_LEN
+#define BTA_AG_AT_MAX_LEN  512
+#endif
+
+#ifndef BTA_AVRCP_FF_RW_SUPPORT
+#define BTA_AVRCP_FF_RW_SUPPORT TRUE
+#endif
+
+#ifndef BTA_AG_SCO_PKT_TYPES
+#define BTA_AG_SCO_PKT_TYPES  (BTM_SCO_LINK_ONLY_MASK | BTM_SCO_PKT_TYPES_MASK_EV3 |  BTM_SCO_PKT_TYPES_MASK_NO_3_EV3 | BTM_SCO_PKT_TYPES_MASK_NO_2_EV5 | BTM_SCO_PKT_TYPES_MASK_NO_3_EV5)
+#endif
+
+#ifndef BTA_AV_RET_TOUT
+#define BTA_AV_RET_TOUT 15
+#endif
+
+#ifndef BTA_AV_CO_CP_SCMS_T
+#define BTA_AV_CO_CP_SCMS_T  FALSE
+#endif
+
+#ifndef BTIF_A2DP_SRC_SAMPLING_RATE
+#define BTIF_A2DP_SRC_SAMPLING_RATE 44100
+#endif
+
+#ifndef BTIF_A2DP_SRC_BIT_DEPTH
+#define BTIF_A2DP_SRC_BIT_DEPTH 16
+#endif
+
+#ifndef BTIF_A2DP_SRC_NUM_CHANNELS
+#define BTIF_A2DP_SRC_NUM_CHANNELS 2
+#endif
+
+/* This feature is used to enable interleaved scan */
+#ifndef BTA_HOST_INTERLEAVE_SEARCH
+#define BTA_HOST_INTERLEAVE_SEARCH FALSE
+#endif
+
+#ifndef BT_USE_TRACES
+#define BT_USE_TRACES  TRUE
+#endif
+
+#ifndef BT_TRACE_VERBOSE
+#define BT_TRACE_VERBOSE  FALSE
+#endif
+
+#ifndef BTA_DM_SDP_DB_SIZE
+#define BTA_DM_SDP_DB_SIZE  8000
+#endif
+
+#ifndef HL_INCLUDED
+#define HL_INCLUDED  TRUE
+#endif
+
+#ifndef AG_VOICE_SETTINGS
+#define AG_VOICE_SETTINGS  HCI_DEFAULT_VOICE_SETTINGS
+#endif
+
+#ifndef BTIF_DM_OOB_TEST
+#define BTIF_DM_OOB_TEST  TRUE
+#endif
+
+// How long to wait before activating sniff mode after entering the
+// idle state for FTS, OPS connections
+#ifndef BTA_FTS_OPS_IDLE_TO_SNIFF_DELAY_MS
+#define BTA_FTS_OPS_IDLE_TO_SNIFF_DELAY_MS 7000
+#endif
+
+//------------------End added from bdroid_buildcfg.h---------------------
+
+
+/******************************************************************************
+**
+** Buffer sizes
+**
+******************************************************************************/
+
+#ifndef BT_DEFAULT_BUFFER_SIZE
+#define BT_DEFAULT_BUFFER_SIZE          (4096 + 16)
+#endif
+
+#ifndef BT_SMALL_BUFFER_SIZE
+#define BT_SMALL_BUFFER_SIZE            660
+#endif
+
+/* Receives HCI events from the lower-layer. */
+#ifndef HCI_CMD_BUF_SIZE
+#define HCI_CMD_BUF_SIZE                BT_SMALL_BUFFER_SIZE
+#endif
+
+/* Sends SDP data packets. */
+#ifndef SDP_DATA_BUF_SIZE
+#define SDP_DATA_BUF_SIZE               BT_DEFAULT_BUFFER_SIZE
+#endif
+
+/* Sends RFCOMM command packets. */
+#ifndef RFCOMM_CMD_BUF_SIZE
+#define RFCOMM_CMD_BUF_SIZE             BT_SMALL_BUFFER_SIZE
+#endif
+
+/* Sends RFCOMM data packets. */
+#ifndef RFCOMM_DATA_BUF_SIZE
+#define RFCOMM_DATA_BUF_SIZE            BT_DEFAULT_BUFFER_SIZE
+#endif
+
+/* Sends L2CAP packets to the peer and HCI messages to the controller. */
+#ifndef L2CAP_CMD_BUF_SIZE
+#define L2CAP_CMD_BUF_SIZE              BT_SMALL_BUFFER_SIZE
+#endif
+
+#ifndef L2CAP_USER_TX_BUF_SIZE
+#define L2CAP_USER_TX_BUF_SIZE          BT_DEFAULT_BUFFER_SIZE
+#endif
+
+#ifndef L2CAP_USER_RX_BUF_SIZE
+#define L2CAP_USER_RX_BUF_SIZE          BT_DEFAULT_BUFFER_SIZE
+#endif
+
+/* Sends L2CAP segmented packets in ERTM mode */
+#ifndef L2CAP_FCR_TX_BUF_SIZE
+#define L2CAP_FCR_TX_BUF_SIZE           BT_DEFAULT_BUFFER_SIZE
+#endif
+
+/* Receives L2CAP segmented packets in ERTM mode */
+#ifndef L2CAP_FCR_RX_BUF_SIZE
+#define L2CAP_FCR_RX_BUF_SIZE           BT_DEFAULT_BUFFER_SIZE
+#endif
+
+#ifndef L2CAP_FCR_ERTM_BUF_SIZE
+#define L2CAP_FCR_ERTM_BUF_SIZE         (10240 + 24)
+#endif
+
+/* Number of ACL buffers to assign to LE */
+/*
+ * TODO: Do we need this?
+ * It was used when the HCI buffers were shared with BR/EDR.
+ */
+#ifndef L2C_DEF_NUM_BLE_BUF_SHARED
+#define L2C_DEF_NUM_BLE_BUF_SHARED      1
+#endif
+
+/* Used by BTM when it sends HCI commands to the controller. */
+#ifndef BTM_CMD_BUF_SIZE
+#define BTM_CMD_BUF_SIZE                BT_SMALL_BUFFER_SIZE
+#endif
+
+#ifndef OBX_LRG_DATA_BUF_SIZE
+#define OBX_LRG_DATA_BUF_SIZE           (8080 + 26)
+#endif
+
+/* Used to send data to L2CAP. */
+#ifndef GAP_DATA_BUF_SIZE
+#define GAP_DATA_BUF_SIZE               BT_DEFAULT_BUFFER_SIZE
+#endif
+
+/* BNEP data and protocol messages. */
+#ifndef BNEP_BUF_SIZE
+#define BNEP_BUF_SIZE                   BT_DEFAULT_BUFFER_SIZE
+#endif
+
+/* AVDTP buffer size for protocol messages */
+#ifndef AVDT_CMD_BUF_SIZE
+#define AVDT_CMD_BUF_SIZE               BT_SMALL_BUFFER_SIZE
+#endif
+
+/* AVDTP buffer size for media packets in case of fragmentation */
+#ifndef AVDT_DATA_BUF_SIZE
+#define AVDT_DATA_BUF_SIZE              BT_DEFAULT_BUFFER_SIZE
+#endif
+
+#ifndef PAN_BUF_SIZE
+#define PAN_BUF_SIZE                    BT_DEFAULT_BUFFER_SIZE
+#endif
+
+/* Maximum number of buffers to allocate for PAN */
+#ifndef PAN_BUF_MAX
+#define PAN_BUF_MAX                     100
+#endif
+
+/* AVCTP buffer size for protocol messages */
+#ifndef AVCT_CMD_BUF_SIZE
+#define AVCT_CMD_BUF_SIZE               288
+#endif
+
+/* AVRCP buffer size for protocol messages */
+#ifndef AVRC_CMD_BUF_SIZE
+#define AVRC_CMD_BUF_SIZE               288
+#endif
+
+/* AVRCP Metadata buffer size for protocol messages */
+#ifndef AVRC_META_CMD_BUF_SIZE
+#define AVRC_META_CMD_BUF_SIZE          BT_SMALL_BUFFER_SIZE
+#endif
+
+#ifndef BTA_HL_LRG_DATA_BUF_SIZE
+#define BTA_HL_LRG_DATA_BUF_SIZE        (10240 + 24)
+#endif
+
+/* GATT Server Database buffer size */
+#ifndef GATT_DB_BUF_SIZE
+#define GATT_DB_BUF_SIZE                128
+#endif
+
+/* GATT Data sending buffer size */
+#ifndef GATT_DATA_BUF_SIZE
+#define GATT_DATA_BUF_SIZE              BT_DEFAULT_BUFFER_SIZE
+#endif
+
+/******************************************************************************
+**
+** BTM
+**
+******************************************************************************/
+
+/* Cancel Inquiry on incoming SSP */
+#ifndef BTM_NO_SSP_ON_INQUIRY
+#define BTM_NO_SSP_ON_INQUIRY   FALSE
+#endif
+
+/* Includes SCO if TRUE */
+#ifndef BTM_SCO_INCLUDED
+#define BTM_SCO_INCLUDED        TRUE    /* TRUE includes SCO code */
+#endif
+
+/* Includes SCO if TRUE */
+#ifndef BTM_SCO_HCI_INCLUDED
+#define BTM_SCO_HCI_INCLUDED    FALSE   /* TRUE includes SCO over HCI code */
+#endif
+
+/* Includes WBS if TRUE */
+#ifndef BTM_WBS_INCLUDED
+#define BTM_WBS_INCLUDED        FALSE   /* TRUE includes WBS code */
+#endif
+
+/*  This is used to work around a controller bug that doesn't like Disconnect
+**  issued while there is a role switch in progress
+*/
+#ifndef BTM_DISC_DURING_RS
+#define BTM_DISC_DURING_RS TRUE
+#endif
+
+/**************************
+** Initial SCO TX credit
+*************************/
+/* max TX SCO data packet size */
+#ifndef BTM_SCO_DATA_SIZE_MAX
+#define BTM_SCO_DATA_SIZE_MAX       240
+#endif
+
+/* The size in bytes of the BTM inquiry database. */
+#ifndef BTM_INQ_DB_SIZE
+#define BTM_INQ_DB_SIZE             40
+#endif
+
+/* The default scan mode */
+#ifndef BTM_DEFAULT_SCAN_TYPE
+#define BTM_DEFAULT_SCAN_TYPE       BTM_SCAN_TYPE_INTERLACED
+#endif
+
+/* Should connections to unknown devices be allowed when not discoverable? */
+#ifndef BTM_ALLOW_CONN_IF_NONDISCOVER
+#define BTM_ALLOW_CONN_IF_NONDISCOVER   TRUE
+#endif
+
+/* Sets the Page_Scan_Window:  the length of time that the device is performing a page scan. */
+#ifndef BTM_DEFAULT_CONN_WINDOW
+#define BTM_DEFAULT_CONN_WINDOW     0x0012
+#endif
+
+/* Sets the Page_Scan_Activity:  the interval between the start of two consecutive page scans. */
+#ifndef BTM_DEFAULT_CONN_INTERVAL
+#define BTM_DEFAULT_CONN_INTERVAL   0x0800
+#endif
+
+/* When automatic inquiry scan is enabled, this sets the inquiry scan window. */
+#ifndef BTM_DEFAULT_DISC_WINDOW
+#define BTM_DEFAULT_DISC_WINDOW     0x0012
+#endif
+
+/* When automatic inquiry scan is enabled, this sets the inquiry scan interval. */
+#ifndef BTM_DEFAULT_DISC_INTERVAL
+#define BTM_DEFAULT_DISC_INTERVAL   0x0800
+#endif
+
+/* Default class of device
+* {SERVICE_CLASS, MAJOR_CLASS, MINOR_CLASS}
+*
+* SERVICE_CLASS:0x5A (Bit17 -Networking,Bit19 - Capturing,Bit20 -Object Transfer,Bit22 -Telephony)
+* MAJOR_CLASS:0x02 - PHONE
+* MINOR_CLASS:0x0C - SMART_PHONE
+*
+*/
+#ifndef BTA_DM_COD
+#define BTA_DM_COD {0x5A, 0x02, 0x0C}
+#endif
+
+/* The number of SCO links. */
+#ifndef BTM_MAX_SCO_LINKS
+#define BTM_MAX_SCO_LINKS           3
+#endif
+
+/* The preferred type of SCO links (2-eSCO, 0-SCO). */
+#ifndef BTM_DEFAULT_SCO_MODE
+#define BTM_DEFAULT_SCO_MODE        2
+#endif
+
+/* The number of security records for peer devices. */
+#ifndef BTM_SEC_MAX_DEVICE_RECORDS
+#define BTM_SEC_MAX_DEVICE_RECORDS  100
+#endif
+
+/* The number of security records for services. */
+#ifndef BTM_SEC_MAX_SERVICE_RECORDS
+#define BTM_SEC_MAX_SERVICE_RECORDS 32
+#endif
+
+/* If True, force a retrieval of remote device name for each bond in case it's changed */
+#ifndef BTM_SEC_FORCE_RNR_FOR_DBOND
+#define BTM_SEC_FORCE_RNR_FOR_DBOND  FALSE
+#endif
+
+/* Maximum device name length used in btm database. */
+#ifndef BTM_MAX_REM_BD_NAME_LEN
+#define BTM_MAX_REM_BD_NAME_LEN     248
+#endif
+
+/* Maximum local device name length stored btm database.
+  '0' disables storage of the local name in BTM */
+#ifndef BTM_MAX_LOC_BD_NAME_LEN
+#define BTM_MAX_LOC_BD_NAME_LEN     248
+#endif
+
+/* Fixed Default String. When this is defined as null string, the device's
+ * product model name is used as the default local name.
+ */
+#ifndef BTM_DEF_LOCAL_NAME
+#define BTM_DEF_LOCAL_NAME      ""
+#endif
+
+/* Maximum service name stored with security authorization (0 if not needed) */
+#ifndef BTM_SEC_SERVICE_NAME_LEN
+#define BTM_SEC_SERVICE_NAME_LEN    BT_MAX_SERVICE_NAME_LEN
+#endif
+
+/* Maximum length of the service name. */
+#ifndef BT_MAX_SERVICE_NAME_LEN
+#define BT_MAX_SERVICE_NAME_LEN     21
+#endif
+
+/* The maximum number of clients that can register with the power manager. */
+#ifndef BTM_MAX_PM_RECORDS
+#define BTM_MAX_PM_RECORDS          2
+#endif
+
+/* This is set to show debug trace messages for the power manager. */
+#ifndef BTM_PM_DEBUG
+#define BTM_PM_DEBUG                FALSE
+#endif
+
+/* This is set to TRUE if link is to be unparked due to BTM_CreateSCO API. */
+#ifndef BTM_SCO_WAKE_PARKED_LINK
+#define BTM_SCO_WAKE_PARKED_LINK    TRUE
+#endif
+
+/* If the user does not respond to security process requests within this many seconds,
+ * a negative response would be sent automatically.
+ * 30 is LMP response timeout value */
+#ifndef BTM_SEC_TIMEOUT_VALUE
+#define BTM_SEC_TIMEOUT_VALUE           35
+#endif
+
+/* Maximum number of callbacks that can be registered using BTM_RegisterForVSEvents */
+#ifndef BTM_MAX_VSE_CALLBACKS
+#define BTM_MAX_VSE_CALLBACKS           3
+#endif
+
+/******************************************
+**    Lisbon Features
+*******************************************/
+/* This is set to TRUE if the FEC is required for EIR packet. */
+#ifndef BTM_EIR_DEFAULT_FEC_REQUIRED
+#define BTM_EIR_DEFAULT_FEC_REQUIRED    TRUE
+#endif
+
+/* The IO capability of the local device (for Simple Pairing) */
+#ifndef BTM_LOCAL_IO_CAPS
+#define BTM_LOCAL_IO_CAPS               BTM_IO_CAP_IO
+#endif
+
+#ifndef BTM_LOCAL_IO_CAPS_BLE
+#define BTM_LOCAL_IO_CAPS_BLE           BTM_IO_CAP_KBDISP
+#endif
+
+/* The default MITM Protection Requirement (for Simple Pairing)
+ * Possible values are BTM_AUTH_SP_YES or BTM_AUTH_SP_NO */
+#ifndef BTM_DEFAULT_AUTH_REQ
+#define BTM_DEFAULT_AUTH_REQ            BTM_AUTH_SP_NO
+#endif
+
+/* The default MITM Protection Requirement for dedicated bonding using Simple Pairing
+ * Possible values are BTM_AUTH_AP_YES or BTM_AUTH_AP_NO */
+#ifndef BTM_DEFAULT_DD_AUTH_REQ
+#define BTM_DEFAULT_DD_AUTH_REQ            BTM_AUTH_AP_YES
+#endif
+
+/* TRUE to include Sniff Subrating */
+#ifndef BTM_SSR_INCLUDED
+#define BTM_SSR_INCLUDED                TRUE
+#endif
+
+/*************************
+** End of Lisbon Features
+**************************/
+
+/* 4.1/4.2 secure connections feature */
+#ifndef SC_MODE_INCLUDED
+#define SC_MODE_INCLUDED                TRUE
+#endif
+
+/* Used for conformance testing ONLY */
+#ifndef BTM_BLE_CONFORMANCE_TESTING
+#define BTM_BLE_CONFORMANCE_TESTING           FALSE
+#endif
+
+/******************************************************************************
+**
+** L2CAP
+**
+******************************************************************************/
+
+/* The maximum number of simultaneous links that L2CAP can support. */
+#ifndef MAX_ACL_CONNECTIONS
+#define MAX_L2CAP_LINKS             7
+#else
+#define MAX_L2CAP_LINKS             MAX_ACL_CONNECTIONS
+#endif
+
+/* The maximum number of simultaneous channels that L2CAP can support. */
+#ifndef MAX_L2CAP_CHANNELS
+#define MAX_L2CAP_CHANNELS          16
+#endif
+
+/* The maximum number of simultaneous applications that can register with L2CAP. */
+#ifndef MAX_L2CAP_CLIENTS
+#define MAX_L2CAP_CLIENTS           15
+#endif
+
+/* The number of seconds of link inactivity before a link is disconnected. */
+#ifndef L2CAP_LINK_INACTIVITY_TOUT
+#define L2CAP_LINK_INACTIVITY_TOUT  4
+#endif
+
+/* The number of seconds of link inactivity after bonding before a link is disconnected. */
+#ifndef L2CAP_BONDING_TIMEOUT
+#define L2CAP_BONDING_TIMEOUT       3
+#endif
+
+/* The time from the HCI connection complete to disconnect if no channel is established. */
+#ifndef L2CAP_LINK_STARTUP_TOUT
+#define L2CAP_LINK_STARTUP_TOUT     60
+#endif
+
+/* The L2CAP MTU; must be in accord with the HCI ACL buffer size. */
+#ifndef L2CAP_MTU_SIZE
+#define L2CAP_MTU_SIZE              1691
+#endif
+
+/*
+ * The L2CAP MPS over Bluetooth; must be in accord with the FCR tx buffer size
+ * and ACL down buffer size.
+ */
+#ifndef L2CAP_MPS_OVER_BR_EDR
+#define L2CAP_MPS_OVER_BR_EDR       1010
+#endif
+
+/* If host flow control enabled, this is the number of buffers the controller can have unacknowledged. */
+#ifndef L2CAP_HOST_FC_ACL_BUFS
+#define L2CAP_HOST_FC_ACL_BUFS      20
+#endif
+
+/* This is set to enable L2CAP to  take the ACL link out of park mode when ACL data is to be sent. */
+#ifndef L2CAP_WAKE_PARKED_LINK
+#define L2CAP_WAKE_PARKED_LINK      TRUE
+#endif
+
+/* Whether link wants to be the master or the slave. */
+#ifndef L2CAP_DESIRED_LINK_ROLE
+#define L2CAP_DESIRED_LINK_ROLE     HCI_ROLE_SLAVE
+#endif
+
+/* Include Non-Flushable Packet Boundary Flag feature of Lisbon */
+#ifndef L2CAP_NON_FLUSHABLE_PB_INCLUDED
+#define L2CAP_NON_FLUSHABLE_PB_INCLUDED     TRUE
+#endif
+
+/* Minimum number of ACL credit for high priority link */
+#ifndef L2CAP_HIGH_PRI_MIN_XMIT_QUOTA
+#define L2CAP_HIGH_PRI_MIN_XMIT_QUOTA       5
+#endif
+
+/* used for monitoring HCI ACL credit management */
+#ifndef L2CAP_HCI_FLOW_CONTROL_DEBUG
+#define L2CAP_HCI_FLOW_CONTROL_DEBUG        TRUE
+#endif
+
+/* Unicast Connectionless Data */
+#ifndef L2CAP_UCD_INCLUDED
+#define L2CAP_UCD_INCLUDED                  FALSE
+#endif
+
+/* Unicast Connectionless Data MTU */
+#ifndef L2CAP_UCD_MTU
+#define L2CAP_UCD_MTU                       L2CAP_MTU_SIZE
+#endif
+
+/* Unicast Connectionless Data Idle Timeout */
+#ifndef L2CAP_UCD_IDLE_TIMEOUT
+#define L2CAP_UCD_IDLE_TIMEOUT              2
+#endif
+
+/* Unicast Connectionless Data Idle Timeout */
+#ifndef L2CAP_UCD_CH_PRIORITY
+#define L2CAP_UCD_CH_PRIORITY               L2CAP_CHNL_PRIORITY_MEDIUM
+#endif
+
+/* Used for features using fixed channels; set to zero if no fixed channels supported (BLE, etc.) */
+/* Excluding L2CAP signaling channel and UCD */
+#ifndef L2CAP_NUM_FIXED_CHNLS
+#define L2CAP_NUM_FIXED_CHNLS               32
+#endif
+
+/* First fixed channel supported */
+#ifndef L2CAP_FIRST_FIXED_CHNL
+#define L2CAP_FIRST_FIXED_CHNL              4
+#endif
+
+#ifndef L2CAP_LAST_FIXED_CHNL
+#define L2CAP_LAST_FIXED_CHNL           (L2CAP_FIRST_FIXED_CHNL + L2CAP_NUM_FIXED_CHNLS - 1)
+#endif
+
+/* Round Robin service channels in link */
+#ifndef L2CAP_ROUND_ROBIN_CHANNEL_SERVICE
+#define L2CAP_ROUND_ROBIN_CHANNEL_SERVICE   TRUE
+#endif
+
+/* used for monitoring eL2CAP data flow */
+#ifndef L2CAP_ERTM_STATS
+#define L2CAP_ERTM_STATS                    FALSE
+#endif
+
+/* Used for conformance testing ONLY:  When TRUE lets scriptwrapper overwrite info response */
+#ifndef L2CAP_CONFORMANCE_TESTING
+#define L2CAP_CONFORMANCE_TESTING           FALSE
+#endif
+
+/*
+ * Max bytes per connection to buffer locally before dropping the
+ * connection if local client does not receive it  - default is 1MB
+ */
+#ifndef L2CAP_MAX_RX_BUFFER
+#define L2CAP_MAX_RX_BUFFER                 0x100000
+#endif
+
+
+/******************************************************************************
+**
+** BLE
+**
+******************************************************************************/
+
+#ifndef BLE_INCLUDED
+#define BLE_INCLUDED            TRUE
+#endif
+
+#ifndef BLE_ANDROID_CONTROLLER_SCAN_FILTER
+#define BLE_ANDROID_CONTROLLER_SCAN_FILTER            TRUE
+#endif
+
+#ifndef LOCAL_BLE_CONTROLLER_ID
+#define LOCAL_BLE_CONTROLLER_ID         (1)
+#endif
+
+/*
+ * Toggles support for general LE privacy features such as remote address
+ * resolution, local address rotation etc.
+ */
+#ifndef BLE_PRIVACY_SPT
+#define BLE_PRIVACY_SPT         TRUE
+#endif
+
+/*
+ * Enables or disables support for local privacy (ex. address rotation)
+ */
+#ifndef BLE_LOCAL_PRIVACY_ENABLED
+#define BLE_LOCAL_PRIVACY_ENABLED         TRUE
+#endif
+
+/*
+ * Toggles support for vendor specific extensions such as RPA offloading,
+ * feature discovery, multi-adv etc.
+ */
+#ifndef BLE_VND_INCLUDED
+#define BLE_VND_INCLUDED        FALSE
+#endif
+
+#ifndef BTM_BLE_ADV_TX_POWER
+#define BTM_BLE_ADV_TX_POWER {-21, -15, -7, 1, 9}
+#endif
+
+/* The maximum number of simultaneous applications that can register with LE L2CAP. */
+#ifndef BLE_MAX_L2CAP_CLIENTS
+#define BLE_MAX_L2CAP_CLIENTS           15
+#endif
+
+/******************************************************************************
+**
+** ATT/GATT Protocol/Profile Settings
+**
+******************************************************************************/
+#ifndef BTA_GATT_INCLUDED
+#if BLE_INCLUDED == TRUE
+#define BTA_GATT_INCLUDED TRUE
+#else
+#define BTA_GATT_INCLUDED FALSE
+#endif
+#endif
+
+#if BTA_GATT_INCLUDED == TRUE && BLE_INCLUDED == FALSE
+#error "can't have GATT without BLE"
+#endif
+
+#ifndef BLE_LLT_INCLUDED
+#define BLE_LLT_INCLUDED    TRUE
+#endif
+
+#ifndef ATT_INCLUDED
+#define ATT_INCLUDED         TRUE
+#endif
+
+#ifndef ATT_DEBUG
+#define ATT_DEBUG           TRUE
+#endif
+
+#ifndef BLE_PERIPHERAL_MODE_SUPPORT
+#define BLE_PERIPHERAL_MODE_SUPPORT  TRUE
+#endif
+
+#ifndef BLE_DELAY_REQUEST_ENC
+/* This flag is to work around IPHONE problem, We need to wait for iPhone ready
+   before send encryption request to iPhone */
+#define BLE_DELAY_REQUEST_ENC        FALSE
+#endif
+
+#ifndef GAP_TRANSPORT_SUPPORTED
+#define GAP_TRANSPORT_SUPPORTED      GATT_TRANSPORT_LE_BR_EDR
+#endif
+
+#ifndef GATTP_TRANSPORT_SUPPORTED
+#define GATTP_TRANSPORT_SUPPORTED    GATT_TRANSPORT_LE_BR_EDR
+#endif
+
+#ifndef GATT_MAX_SR_PROFILES
+#define GATT_MAX_SR_PROFILES        32 /* max is 32 */
+#endif
+
+#ifndef GATT_MAX_APPS
+#define GATT_MAX_APPS            32 /* note: 2 apps used internally GATT and GAP */
+#endif
+
+#ifndef GATT_MAX_PHY_CHANNEL
+#define GATT_MAX_PHY_CHANNEL        7
+#endif
+
+/* Used for conformance testing ONLY */
+#ifndef GATT_CONFORMANCE_TESTING
+#define GATT_CONFORMANCE_TESTING           FALSE
+#endif
+
+/* number of background connection device allowence, ideally to be the same as WL size
+*/
+#ifndef GATT_MAX_BG_CONN_DEV
+#define GATT_MAX_BG_CONN_DEV        32
+#endif
+
+/******************************************************************************
+**
+** SMP
+**
+******************************************************************************/
+#ifndef SMP_INCLUDED
+#if BLE_INCLUDED == TRUE
+#define SMP_INCLUDED         TRUE
+#else
+#define SMP_INCLUDED         FALSE
+#endif
+#endif
+
+#if SMP_INCLUDED == TRUE && BLE_INCLUDED == FALSE
+#error "can't have SMP without BLE"
+#endif
+
+#ifndef SMP_DEBUG
+#define SMP_DEBUG            FALSE
+#endif
+
+#ifndef SMP_DEFAULT_AUTH_REQ
+#define SMP_DEFAULT_AUTH_REQ    SMP_AUTH_NB_ENC_ONLY
+#endif
+
+#ifndef SMP_MAX_ENC_KEY_SIZE
+#define SMP_MAX_ENC_KEY_SIZE    16
+#endif
+
+/* minimum link timeout after SMP pairing is done, leave room for key exchange
+   and racing condition for the following service connection.
+   Prefer greater than 0 second, and no less than default inactivity link idle
+   timer(L2CAP_LINK_INACTIVITY_TOUT) in l2cap) */
+#ifndef SMP_LINK_TOUT_MIN
+#if (L2CAP_LINK_INACTIVITY_TOUT > 0)
+#define SMP_LINK_TOUT_MIN               L2CAP_LINK_INACTIVITY_TOUT
+#else
+#define SMP_LINK_TOUT_MIN               2
+#endif
+#endif
+/******************************************************************************
+**
+** SDP
+**
+******************************************************************************/
+
+/* This is set to enable SDP server functionality. */
+#ifndef SDP_SERVER_ENABLED
+#define SDP_SERVER_ENABLED          TRUE
+#endif
+
+/* The maximum number of SDP records the server can support. */
+#ifndef SDP_MAX_RECORDS
+#define SDP_MAX_RECORDS             30
+#endif
+
+/* The maximum number of attributes in each record. */
+#ifndef SDP_MAX_REC_ATTR
+#define SDP_MAX_REC_ATTR            25
+#endif
+
+#ifndef SDP_MAX_PAD_LEN
+#define SDP_MAX_PAD_LEN             600
+#endif
+
+/* The maximum length, in bytes, of an attribute. */
+#ifndef SDP_MAX_ATTR_LEN
+#define SDP_MAX_ATTR_LEN            400
+#endif
+
+/* The maximum number of attribute filters supported by SDP databases. */
+#ifndef SDP_MAX_ATTR_FILTERS
+#define SDP_MAX_ATTR_FILTERS        15
+#endif
+
+/* The maximum number of UUID filters supported by SDP databases. */
+#ifndef SDP_MAX_UUID_FILTERS
+#define SDP_MAX_UUID_FILTERS        3
+#endif
+
+/* This is set to enable SDP client functionality. */
+#ifndef SDP_CLIENT_ENABLED
+#define SDP_CLIENT_ENABLED          TRUE
+#endif
+
+/* The maximum number of record handles retrieved in a search. */
+#ifndef SDP_MAX_DISC_SERVER_RECS
+#define SDP_MAX_DISC_SERVER_RECS    21
+#endif
+
+/* The size of a scratchpad buffer, in bytes, for storing the response to an attribute request. */
+#ifndef SDP_MAX_LIST_BYTE_COUNT
+#define SDP_MAX_LIST_BYTE_COUNT     4096
+#endif
+
+/* The maximum number of parameters in an SDP protocol element. */
+#ifndef SDP_MAX_PROTOCOL_PARAMS
+#define SDP_MAX_PROTOCOL_PARAMS     2
+#endif
+
+/* The maximum number of simultaneous client and server connections. */
+#ifndef SDP_MAX_CONNECTIONS
+#define SDP_MAX_CONNECTIONS         4
+#endif
+
+/* The MTU size for the L2CAP configuration. */
+#ifndef SDP_MTU_SIZE
+#define SDP_MTU_SIZE                672
+#endif
+
+/* The flush timeout for the L2CAP configuration. */
+#ifndef SDP_FLUSH_TO
+#define SDP_FLUSH_TO                0xFFFF
+#endif
+
+/* The name for security authorization. */
+#ifndef SDP_SERVICE_NAME
+#define SDP_SERVICE_NAME            "Service Discovery"
+#endif
+
+/* The security level for BTM. */
+#ifndef SDP_SECURITY_LEVEL
+#define SDP_SECURITY_LEVEL          BTM_SEC_NONE
+#endif
+
+/******************************************************************************
+**
+** RFCOMM
+**
+******************************************************************************/
+
+/* The maximum number of ports supported. */
+#ifndef MAX_RFC_PORTS
+#define MAX_RFC_PORTS               30
+#endif
+
+/* The maximum simultaneous links to different devices. */
+#ifndef MAX_ACL_CONNECTIONS
+#define MAX_BD_CONNECTIONS          7
+#else
+#define MAX_BD_CONNECTIONS          MAX_ACL_CONNECTIONS
+#endif
+
+/* The port receive queue low watermark level, in bytes. */
+#ifndef PORT_RX_LOW_WM
+#define PORT_RX_LOW_WM              (BTA_RFC_MTU_SIZE * PORT_RX_BUF_LOW_WM)
+#endif
+
+/* The port receive queue high watermark level, in bytes. */
+#ifndef PORT_RX_HIGH_WM
+#define PORT_RX_HIGH_WM             (BTA_RFC_MTU_SIZE * PORT_RX_BUF_HIGH_WM)
+#endif
+
+/* The port receive queue critical watermark level, in bytes. */
+#ifndef PORT_RX_CRITICAL_WM
+#define PORT_RX_CRITICAL_WM         (BTA_RFC_MTU_SIZE * PORT_RX_BUF_CRITICAL_WM)
+#endif
+
+/* The port receive queue low watermark level, in number of buffers. */
+#ifndef PORT_RX_BUF_LOW_WM
+#define PORT_RX_BUF_LOW_WM          4
+#endif
+
+/* The port receive queue high watermark level, in number of buffers. */
+#ifndef PORT_RX_BUF_HIGH_WM
+#define PORT_RX_BUF_HIGH_WM         10
+#endif
+
+/* The port receive queue critical watermark level, in number of buffers. */
+#ifndef PORT_RX_BUF_CRITICAL_WM
+#define PORT_RX_BUF_CRITICAL_WM     15
+#endif
+
+/* The port transmit queue high watermark level, in bytes. */
+#ifndef PORT_TX_HIGH_WM
+#define PORT_TX_HIGH_WM             (BTA_RFC_MTU_SIZE * PORT_TX_BUF_HIGH_WM)
+#endif
+
+/* The port transmit queue critical watermark level, in bytes. */
+#ifndef PORT_TX_CRITICAL_WM
+#define PORT_TX_CRITICAL_WM         (BTA_RFC_MTU_SIZE * PORT_TX_BUF_CRITICAL_WM)
+#endif
+
+/* The port transmit queue high watermark level, in number of buffers. */
+#ifndef PORT_TX_BUF_HIGH_WM
+#define PORT_TX_BUF_HIGH_WM         10
+#endif
+
+/* The port transmit queue high watermark level, in number of buffers. */
+#ifndef PORT_TX_BUF_CRITICAL_WM
+#define PORT_TX_BUF_CRITICAL_WM     15
+#endif
+
+/* The RFCOMM multiplexer preferred flow control mechanism. */
+#ifndef PORT_FC_DEFAULT
+#define PORT_FC_DEFAULT             PORT_FC_CREDIT
+#endif
+
+/* The maximum number of credits receiver sends to peer when using credit-based flow control. */
+#ifndef PORT_CREDIT_RX_MAX
+#define PORT_CREDIT_RX_MAX          16
+#endif
+
+/* The credit low watermark level. */
+#ifndef PORT_CREDIT_RX_LOW
+#define PORT_CREDIT_RX_LOW          8
+#endif
+
+/******************************************************************************
+**
+** OBEX
+**
+******************************************************************************/
+
+/*
+ * Buffer size to reassemble the SDU.
+ * It will allow buffers to be used that are larger than the L2CAP_MAX_MTU.
+ */
+#ifndef OBX_USER_RX_BUF_SIZE
+#define OBX_USER_RX_BUF_SIZE    OBX_LRG_DATA_BUF_SIZE
+#endif
+
+/*
+ * Buffer size to hold the SDU.
+ * It will allow buffers to be used that are larger than the L2CAP_MAX_MTU.
+ */
+#ifndef OBX_USER_TX_BUF_SIZE
+#define OBX_USER_TX_BUF_SIZE    OBX_LRG_DATA_BUF_SIZE
+#endif
+
+/* Buffer size used to hold MPS segments during SDU reassembly. */
+#ifndef OBX_FCR_RX_BUF_SIZE
+#define OBX_FCR_RX_BUF_SIZE     BT_DEFAULT_BUFFER_SIZE
+#endif
+
+/*
+ * Buffer size used to hold MPS segments used in (re)transmissions.
+ * The size of each buffer must be able to hold the maximum MPS segment size
+ * passed in L2CA_SetFCROptions plus BT_HDR (8) + HCI preamble (4) +
+ * L2CAP_MIN_OFFSET (11 - as of BT 2.1 + EDR Spec).
+ */
+#ifndef OBX_FCR_TX_BUF_SIZE
+#define OBX_FCR_TX_BUF_SIZE     BT_DEFAULT_BUFFER_SIZE
+#endif
+
+/*
+ * Size of the transmission window when using enhanced retransmission mode.
+ * Not used in basic and streaming modes. Range: 1 - 63
+ */
+#ifndef OBX_FCR_OPT_TX_WINDOW_SIZE_BR_EDR
+#define OBX_FCR_OPT_TX_WINDOW_SIZE_BR_EDR       20
+#endif
+
+/*
+ * Number of transmission attempts for a single I-Frame before taking
+ * Down the connection. Used In ERTM mode only. Value is Ignored in basic and
+ * Streaming modes.
+ * Range: 0, 1-0xFF
+ * 0 - infinite retransmissions
+ * 1 - single transmission
+ */
+#ifndef OBX_FCR_OPT_MAX_TX_B4_DISCNT
+#define OBX_FCR_OPT_MAX_TX_B4_DISCNT    20
+#endif
+
+/*
+ * Retransmission Timeout
+ * Range: Minimum 2000 (2 secs) on BR/EDR when supporting PBF.
+ */
+#ifndef OBX_FCR_OPT_RETX_TOUT
+#define OBX_FCR_OPT_RETX_TOUT           2000
+#endif
+
+/*
+ * Monitor Timeout
+ * Range: Minimum 12000 (12 secs) on BR/EDR when supporting PBF.
+ */
+#ifndef OBX_FCR_OPT_MONITOR_TOUT
+#define OBX_FCR_OPT_MONITOR_TOUT        12000
+#endif
+
+/*
+ * Maximum PDU payload size.
+ * Suggestion: The maximum amount of data that will fit into a 3-DH5 packet.
+ * Range: 2 octets
+ */
+#ifndef OBX_FCR_OPT_MAX_PDU_SIZE
+#define OBX_FCR_OPT_MAX_PDU_SIZE        L2CAP_MPS_OVER_BR_EDR
+#endif
+
+
+/******************************************************************************
+**
+** BNEP
+**
+******************************************************************************/
+
+#ifndef BNEP_INCLUDED
+#define BNEP_INCLUDED               TRUE
+#endif
+
+/* BNEP status API call is used mainly to get the L2CAP handle */
+#ifndef BNEP_SUPPORTS_STATUS_API
+#define BNEP_SUPPORTS_STATUS_API            TRUE
+#endif
+
+/*
+** When BNEP connection changes roles after the connection is established
+** we will do an authentication check again on the new role
+*/
+#ifndef BNEP_DO_AUTH_FOR_ROLE_SWITCH
+#define BNEP_DO_AUTH_FOR_ROLE_SWITCH        TRUE
+#endif
+
+
+/* Maximum number of protocol filters supported. */
+#ifndef BNEP_MAX_PROT_FILTERS
+#define BNEP_MAX_PROT_FILTERS       5
+#endif
+
+/* Maximum number of multicast filters supported. */
+#ifndef BNEP_MAX_MULTI_FILTERS
+#define BNEP_MAX_MULTI_FILTERS      5
+#endif
+
+/* Minimum MTU size. */
+#ifndef BNEP_MIN_MTU_SIZE
+#define BNEP_MIN_MTU_SIZE           L2CAP_MTU_SIZE
+#endif
+
+/* Preferred MTU size. */
+#ifndef BNEP_MTU_SIZE
+#define BNEP_MTU_SIZE               BNEP_MIN_MTU_SIZE
+#endif
+
+/* Maximum number of buffers allowed in transmit data queue. */
+#ifndef BNEP_MAX_XMITQ_DEPTH
+#define BNEP_MAX_XMITQ_DEPTH        20
+#endif
+
+/* Maximum number BNEP of connections supported. */
+#ifndef BNEP_MAX_CONNECTIONS
+#define BNEP_MAX_CONNECTIONS        7
+#endif
+
+
+/******************************************************************************
+**
+** AVDTP
+**
+******************************************************************************/
+
+#ifndef AVDT_INCLUDED
+#define AVDT_INCLUDED               TRUE
+#endif
+
+/* Include reporting capability in AVDTP */
+#ifndef AVDT_REPORTING
+#define AVDT_REPORTING              TRUE
+#endif
+
+/* Include multiplexing capability in AVDTP */
+#ifndef AVDT_MULTIPLEXING
+#define AVDT_MULTIPLEXING           TRUE
+#endif
+
+/* Number of simultaneous links to different peer devices. */
+#ifndef AVDT_NUM_LINKS
+#define AVDT_NUM_LINKS              2
+#endif
+
+/* Number of simultaneous stream endpoints. */
+#ifndef AVDT_NUM_SEPS
+#define AVDT_NUM_SEPS               3
+#endif
+
+/* Number of transport channels setup by AVDT for all media streams */
+#ifndef AVDT_NUM_TC_TBL
+#define AVDT_NUM_TC_TBL             6
+#endif
+
+/* Maximum size in bytes of the codec capabilities information element. */
+#ifndef AVDT_CODEC_SIZE
+#define AVDT_CODEC_SIZE             10
+#endif
+
+/* Maximum size in bytes of the content protection information element. */
+#ifndef AVDT_PROTECT_SIZE
+#define AVDT_PROTECT_SIZE           90
+#endif
+
+/* Maximum number of buffers in the fragment queue (for video frames). */
+#ifndef AVDT_MAX_FRAG_COUNT
+#define AVDT_MAX_FRAG_COUNT         15
+#endif
+
+/******************************************************************************
+**
+** PAN
+**
+******************************************************************************/
+
+#ifndef PAN_INCLUDED
+#define PAN_INCLUDED                     TRUE
+#endif
+
+/* This will enable the PANU role */
+#ifndef PAN_SUPPORTS_ROLE_PANU
+#define PAN_SUPPORTS_ROLE_PANU              TRUE
+#endif
+
+/* This will enable the GN role */
+#ifndef PAN_SUPPORTS_ROLE_GN
+#define PAN_SUPPORTS_ROLE_GN                TRUE
+#endif
+
+/* This will enable the NAP role */
+#ifndef PAN_SUPPORTS_ROLE_NAP
+#define PAN_SUPPORTS_ROLE_NAP               TRUE
+#endif
+
+/* This is just for debugging purposes */
+#ifndef PAN_SUPPORTS_DEBUG_DUMP
+#define PAN_SUPPORTS_DEBUG_DUMP             TRUE
+#endif
+
+/* Maximum number of PAN connections allowed */
+#ifndef MAX_PAN_CONNS
+#define MAX_PAN_CONNS                    7
+#endif
+
+/* Default service name for NAP role */
+#ifndef PAN_NAP_DEFAULT_SERVICE_NAME
+#define PAN_NAP_DEFAULT_SERVICE_NAME    "Network Access Point Service"
+#endif
+
+/* Default service name for GN role */
+#ifndef PAN_GN_DEFAULT_SERVICE_NAME
+#define PAN_GN_DEFAULT_SERVICE_NAME     "Group Network Service"
+#endif
+
+/* Default service name for PANU role */
+#ifndef PAN_PANU_DEFAULT_SERVICE_NAME
+#define PAN_PANU_DEFAULT_SERVICE_NAME   "PAN User Service"
+#endif
+
+/* Default description for NAP role service */
+#ifndef PAN_NAP_DEFAULT_DESCRIPTION
+#define PAN_NAP_DEFAULT_DESCRIPTION     "NAP"
+#endif
+
+/* Default description for GN role service */
+#ifndef PAN_GN_DEFAULT_DESCRIPTION
+#define PAN_GN_DEFAULT_DESCRIPTION      "GN"
+#endif
+
+/* Default description for PANU role service */
+#ifndef PAN_PANU_DEFAULT_DESCRIPTION
+#define PAN_PANU_DEFAULT_DESCRIPTION    "PANU"
+#endif
+
+/* Default Security level for PANU role. */
+#ifndef PAN_PANU_SECURITY_LEVEL
+#define PAN_PANU_SECURITY_LEVEL          0
+#endif
+
+/* Default Security level for GN role. */
+#ifndef PAN_GN_SECURITY_LEVEL
+#define PAN_GN_SECURITY_LEVEL            0
+#endif
+
+/* Default Security level for NAP role. */
+#ifndef PAN_NAP_SECURITY_LEVEL
+#define PAN_NAP_SECURITY_LEVEL           0
+#endif
+
+/******************************************************************************
+**
+** GAP
+**
+******************************************************************************/
+
+#ifndef GAP_INCLUDED
+#define GAP_INCLUDED                TRUE
+#endif
+
+/* This is set to enable use of GAP L2CAP connections. */
+#ifndef GAP_CONN_INCLUDED
+#define GAP_CONN_INCLUDED           TRUE
+#endif
+
+/* This is set to enable posting event for data write */
+#ifndef GAP_CONN_POST_EVT_INCLUDED
+#define GAP_CONN_POST_EVT_INCLUDED  FALSE
+#endif
+
+/* The maximum number of simultaneous GAP L2CAP connections. */
+#ifndef GAP_MAX_CONNECTIONS
+#define GAP_MAX_CONNECTIONS         30
+#endif
+
+/* keep the raw data received from SDP server in database. */
+#ifndef SDP_RAW_DATA_INCLUDED
+#define SDP_RAW_DATA_INCLUDED       TRUE
+#endif
+
+/* Inquiry duration in 1.28 second units. */
+#ifndef SDP_DEBUG
+#define SDP_DEBUG                   TRUE
+#endif
+
+/******************************************************************************
+**
+** HID
+**
+******************************************************************************/
+
+#ifndef HID_CONTROL_BUF_SIZE
+#define HID_CONTROL_BUF_SIZE            BT_DEFAULT_BUFFER_SIZE
+#endif
+
+#ifndef HID_INTERRUPT_BUF_SIZE
+#define HID_INTERRUPT_BUF_SIZE          BT_DEFAULT_BUFFER_SIZE
+#endif
+
+/*************************************************************************
+** Definitions for Both HID-Host & Device
+*/
+#ifndef HID_MAX_SVC_NAME_LEN
+#define HID_MAX_SVC_NAME_LEN  32
+#endif
+
+#ifndef HID_MAX_SVC_DESCR_LEN
+#define HID_MAX_SVC_DESCR_LEN 32
+#endif
+
+#ifndef HID_MAX_PROV_NAME_LEN
+#define HID_MAX_PROV_NAME_LEN 32
+#endif
+
+/*************************************************************************
+** Definitions for HID-Host
+*/
+#ifndef  HID_HOST_INCLUDED
+#define HID_HOST_INCLUDED           TRUE
+#endif
+
+#ifndef HID_HOST_MAX_DEVICES
+#define HID_HOST_MAX_DEVICES        7
+#endif
+
+#ifndef HID_HOST_MTU
+#define HID_HOST_MTU                640
+#endif
+
+#ifndef HID_HOST_FLUSH_TO
+#define HID_HOST_FLUSH_TO                 0xffff
+#endif
+
+#ifndef HID_HOST_MAX_CONN_RETRY
+#define HID_HOST_MAX_CONN_RETRY     (1)
+#endif
+
+#ifndef HID_HOST_REPAGE_WIN
+#define HID_HOST_REPAGE_WIN          (2)
+#endif
+
+/*************************************************************************
+ * A2DP Definitions
+ */
+#ifndef A2D_INCLUDED
+#define A2D_INCLUDED            TRUE
+#endif
+
+/******************************************************************************
+**
+** AVCTP
+**
+******************************************************************************/
+
+/* Number of simultaneous ACL links to different peer devices. */
+#ifndef AVCT_NUM_LINKS
+#define AVCT_NUM_LINKS              2
+#endif
+
+/* Number of simultaneous AVCTP connections. */
+#ifndef AVCT_NUM_CONN
+#define AVCT_NUM_CONN               3
+#endif
+
+/******************************************************************************
+**
+** AVRCP
+**
+******************************************************************************/
+
+#ifndef AVRC_METADATA_INCLUDED
+#define AVRC_METADATA_INCLUDED      TRUE
+#endif
+
+#ifndef AVRC_ADV_CTRL_INCLUDED
+#define AVRC_ADV_CTRL_INCLUDED      TRUE
+#endif
+
+#ifndef AVRC_CTLR_INCLUDED
+#define AVRC_CTLR_INCLUDED          TRUE
+#endif
+
+/******************************************************************************
+**
+** MCAP
+**
+******************************************************************************/
+#ifndef MCA_INCLUDED
+#define MCA_INCLUDED                FALSE
+#endif
+
+/* The MTU size for the L2CAP configuration on control channel. 48 is the minimal */
+#ifndef MCA_CTRL_MTU
+#define MCA_CTRL_MTU    60
+#endif
+
+/* The maximum number of registered MCAP instances. */
+#ifndef MCA_NUM_REGS
+#define MCA_NUM_REGS    12
+#endif
+
+/* The maximum number of control channels (to difference devices) per registered MCAP instances. */
+#ifndef MCA_NUM_LINKS
+#define MCA_NUM_LINKS   3
+#endif
+
+/* The maximum number of MDEP (including HDP echo) per registered MCAP instances. */
+#ifndef MCA_NUM_DEPS
+#define MCA_NUM_DEPS    13
+#endif
+
+/* The maximum number of MDL link per control channel. */
+#ifndef MCA_NUM_MDLS
+#define MCA_NUM_MDLS    4
+#endif
+
+/* Buffer size to reassemble the SDU. */
+#ifndef MCA_USER_RX_BUF_SIZE
+#define MCA_USER_RX_BUF_SIZE    BT_DEFAULT_BUFFER_SIZE
+#endif
+
+/* Buffer size to hold the SDU. */
+#ifndef MCA_USER_TX_BUF_SIZE
+#define MCA_USER_TX_BUF_SIZE    BT_DEFAULT_BUFFER_SIZE
+#endif
+
+/*
+ * Buffer size used to hold MPS segments during SDU reassembly
+ */
+#ifndef MCA_FCR_RX_BUF_SIZE
+#define MCA_FCR_RX_BUF_SIZE     BT_DEFAULT_BUFFER_SIZE
+#endif
+
+/*
+ * Default buffer size used to hold MPS segments used in (re)transmissions.
+ * The size of each buffer must be able to hold the maximum MPS segment size
+ * passed in tL2CAP_FCR_OPTIONS plus BT_HDR (8) + HCI preamble (4) +
+ * L2CAP_MIN_OFFSET (11 - as of BT 2.1 + EDR Spec).
+ */
+#ifndef MCA_FCR_TX_BUF_SIZE
+#define MCA_FCR_TX_BUF_SIZE     BT_DEFAULT_BUFFER_SIZE
+#endif
+
+/* MCAP control channel FCR Option:
+Size of the transmission window when using enhanced retransmission mode.
+1 is defined by HDP specification for control channel.
+*/
+#ifndef MCA_FCR_OPT_TX_WINDOW_SIZE
+#define MCA_FCR_OPT_TX_WINDOW_SIZE      1
+#endif
+
+/* MCAP control channel FCR Option:
+Number of transmission attempts for a single I-Frame before taking
+Down the connection. Used In ERTM mode only. Value is Ignored in basic and
+Streaming modes.
+Range: 0, 1-0xFF
+0 - infinite retransmissions
+1 - single transmission
+*/
+#ifndef MCA_FCR_OPT_MAX_TX_B4_DISCNT
+#define MCA_FCR_OPT_MAX_TX_B4_DISCNT    20
+#endif
+
+/* MCAP control channel FCR Option: Retransmission Timeout
+The AVRCP specification set a value in the range of 300 - 2000 ms
+Timeout (in msecs) to detect Lost I-Frames. Only used in Enhanced retransmission mode.
+Range: Minimum 2000 (2 secs) when supporting PBF.
+ */
+#ifndef MCA_FCR_OPT_RETX_TOUT
+#define MCA_FCR_OPT_RETX_TOUT           2000
+#endif
+
+/* MCAP control channel FCR Option: Monitor Timeout
+The AVRCP specification set a value in the range of 300 - 2000 ms
+Timeout (in msecs) to detect Lost S-Frames. Only used in Enhanced retransmission mode.
+Range: Minimum 12000 (12 secs) when supporting PBF.
+*/
+#ifndef MCA_FCR_OPT_MONITOR_TOUT
+#define MCA_FCR_OPT_MONITOR_TOUT        12000
+#endif
+
+/* MCAP control channel FCR Option: Maximum PDU payload size.
+The maximum number of payload octets that the local device can receive in a single PDU.
+*/
+#ifndef MCA_FCR_OPT_MPS_SIZE
+#define MCA_FCR_OPT_MPS_SIZE            1000
+#endif
+
+/******************************************************************************
+**
+** Sleep Mode (Low Power Mode)
+**
+******************************************************************************/
+
+#ifndef HCILP_INCLUDED
+#define HCILP_INCLUDED                  TRUE
+#endif
+
+/******************************************************************************
+**
+** BTA
+**
+******************************************************************************/
+/* BTA EIR canned UUID list (default is dynamic) */
+#ifndef BTA_EIR_CANNED_UUID_LIST
+#define BTA_EIR_CANNED_UUID_LIST FALSE
+#endif
+
+/* Number of supported customer UUID in EIR */
+#ifndef BTA_EIR_SERVER_NUM_CUSTOM_UUID
+#define BTA_EIR_SERVER_NUM_CUSTOM_UUID     8
+#endif
+
+/* CHLD override */
+#ifndef BTA_AG_CHLD_VAL_ECC
+#define BTA_AG_CHLD_VAL_ECC  "(0,1,1x,2,2x,3)"
+#endif
+
+#ifndef BTA_AG_CHLD_VAL
+#define BTA_AG_CHLD_VAL  "(0,1,2,3)"
+#endif
+
+/* Set the CIND to match HFP 1.5 */
+#ifndef BTA_AG_CIND_INFO
+#define BTA_AG_CIND_INFO "(\"call\",(0,1)),(\"callsetup\",(0-3)),(\"service\",(0-1)),(\"signal\",(0-5)),(\"roam\",(0,1)),(\"battchg\",(0-5)),(\"callheld\",(0-2))"
+#endif
+
+#ifndef BTA_DM_AVOID_A2DP_ROLESWITCH_ON_INQUIRY
+#define BTA_DM_AVOID_A2DP_ROLESWITCH_ON_INQUIRY TRUE
+#endif
+
+/******************************************************************************
+**
+** Tracing:  Include trace header file here.
+**
+******************************************************************************/
+
+/* Enable/disable BTSnoop memory logging */
+#ifndef BTSNOOP_MEM
+#define BTSNOOP_MEM TRUE
+#endif
+
+#include "bt_trace.h"
+
+#endif /* BT_TARGET_H */
diff --git a/rtkbt/code/bt/include/bt_trace.h b/rtkbt/code/bt/include/bt_trace.h
new file mode 100755
index 0000000..fea0c3c
--- /dev/null
+++ b/rtkbt/code/bt/include/bt_trace.h
@@ -0,0 +1,416 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+static const char BTE_LOGMSG_MODULE[] = "bte_logmsg_module";
+
+/* BTE tracing IDs for debug purposes */
+/* LayerIDs for stack */
+#define BTTRC_ID_STK_GKI                   1
+#define BTTRC_ID_STK_BTU                   2
+#define BTTRC_ID_STK_HCI                   3
+#define BTTRC_ID_STK_L2CAP                 4
+#define BTTRC_ID_STK_RFCM_MX               5
+#define BTTRC_ID_STK_RFCM_PRT              6
+#define BTTRC_ID_STK_OBEX_C                7
+#define BTTRC_ID_STK_OBEX_S                8
+#define BTTRC_ID_STK_AVCT                  9
+#define BTTRC_ID_STK_AVDT                  10
+#define BTTRC_ID_STK_AVRC                  11
+#define BTTRC_ID_STK_BIC                   12
+#define BTTRC_ID_STK_BIS                   13
+#define BTTRC_ID_STK_BNEP                  14
+#define BTTRC_ID_STK_BPP                   15
+#define BTTRC_ID_STK_BTM_ACL               16
+#define BTTRC_ID_STK_BTM_PM                17
+#define BTTRC_ID_STK_BTM_DEV_CTRL          18
+#define BTTRC_ID_STK_BTM_SVC_DSC           19
+#define BTTRC_ID_STK_BTM_INQ               20
+#define BTTRC_ID_STK_BTM_SCO               21
+#define BTTRC_ID_STK_BTM_SEC               22
+#define BTTRC_ID_STK_HID                   24
+#define BTTRC_ID_STK_HSP2                  25
+#define BTTRC_ID_STK_CTP                   26
+#define BTTRC_ID_STK_FTC                   27
+#define BTTRC_ID_STK_FTS                   28
+#define BTTRC_ID_STK_GAP                   29
+#define BTTRC_ID_STK_HCRP                  31
+#define BTTRC_ID_STK_ICP                   32
+#define BTTRC_ID_STK_OPC                   33
+#define BTTRC_ID_STK_OPS                   34
+#define BTTRC_ID_STK_PAN                   35
+#define BTTRC_ID_STK_SAP                   36
+#define BTTRC_ID_STK_SDP                   37
+#define BTTRC_ID_STK_SLIP                  38
+#define BTTRC_ID_STK_SPP                   39
+#define BTTRC_ID_STK_TCS                   40
+#define BTTRC_ID_STK_VDP                   41
+#define BTTRC_ID_STK_MCAP                  42
+#define BTTRC_ID_STK_GATT                  43
+#define BTTRC_ID_STK_SMP                   44
+#define BTTRC_ID_STK_NFC                   45
+#define BTTRC_ID_STK_NCI                   46
+#define BTTRC_ID_STK_IDEP                  47
+#define BTTRC_ID_STK_NDEP                  48
+#define BTTRC_ID_STK_LLCP                  49
+#define BTTRC_ID_STK_RW                    50
+#define BTTRC_ID_STK_CE                    51
+#define BTTRC_ID_STK_SNEP                  52
+#define BTTRC_ID_STK_NDEF                  53
+
+/* LayerIDs for BTA */
+#define BTTRC_ID_BTA_ACC                   55         /* Advanced Camera Client */
+#define BTTRC_ID_BTA_AG                    56         /* audio gateway */
+#define BTTRC_ID_BTA_AV                    57         /* Advanced audio */
+#define BTTRC_ID_BTA_BIC                   58         /* Basic Imaging Client */
+#define BTTRC_ID_BTA_BIS                   59         /* Basic Imaging Server */
+#define BTTRC_ID_BTA_BP                    60         /* Basic Printing Client */
+#define BTTRC_ID_BTA_CG                    61
+#define BTTRC_ID_BTA_CT                    62         /* cordless telephony terminal */
+#define BTTRC_ID_BTA_DG                    63         /* data gateway */
+#define BTTRC_ID_BTA_DM                    64         /* device manager */
+#define BTTRC_ID_BTA_DM_SRCH               65         /* device manager search */
+#define BTTRC_ID_BTA_DM_SEC                66         /* device manager security */
+#define BTTRC_ID_BTA_FM                    67
+#define BTTRC_ID_BTA_FTC                   68         /* file transfer client */
+#define BTTRC_ID_BTA_FTS                   69         /* file transfer server */
+#define BTTRC_ID_BTA_HIDH                  70
+#define BTTRC_ID_BTA_HIDD                  71
+#define BTTRC_ID_BTA_JV                    72
+#define BTTRC_ID_BTA_OPC                   73         /* object push client */
+#define BTTRC_ID_BTA_OPS                   74         /* object push server */
+#define BTTRC_ID_BTA_PAN                   75         /* Personal Area Networking */
+#define BTTRC_ID_BTA_PR                    76         /* Printer client */
+#define BTTRC_ID_BTA_SC                    77         /* SIM Card Access server */
+#define BTTRC_ID_BTA_SS                    78         /* synchronization server */
+#define BTTRC_ID_BTA_SYS                   79         /* system manager */
+#define BTTRC_ID_AVDT_SCB                  80         /* avdt scb */
+#define BTTRC_ID_AVDT_CCB                  81         /* avdt ccb */
+
+/* LayerIDs added for BTL-A. Probably should modify bte_logmsg.c in future. */
+#define BTTRC_ID_STK_RFCOMM                82
+#define BTTRC_ID_STK_RFCOMM_DATA           83
+#define BTTRC_ID_STK_OBEX                  84
+#define BTTRC_ID_STK_A2D                   85
+#define BTTRC_ID_STK_BIP                   86
+
+/* LayerIDs for BT APP */
+#define BTTRC_ID_BTAPP                     87
+#define BTTRC_ID_BT_PROTOCOL               88         /* this is a temporary solution to allow dynamic
+                                                         enable/disable of BT_PROTOCOL_TRACE */
+#define BTTRC_ID_MAX_ID                    BTTRC_ID_BT_PROTOCOL
+#define BTTRC_ID_ALL_LAYERS                0xFF       /* all trace layers */
+/* Parameter datatypes used in Trace APIs */
+#define BTTRC_PARAM_UINT8                  1
+#define BTTRC_PARAM_UINT16                 2
+#define BTTRC_PARAM_UINT32                 3
+
+/* Enables or disables verbose trace information. */
+#ifndef BT_TRACE_VERBOSE
+#define BT_TRACE_VERBOSE    FALSE
+#endif
+
+/* Enables or disables all trace messages. */
+#ifndef BT_USE_TRACES
+#define BT_USE_TRACES       TRUE
+#endif
+
+/******************************************************************************
+**
+** Trace Levels
+**
+** The following values may be used for different levels:
+**      BT_TRACE_LEVEL_NONE    0        * No trace messages to be generated
+**      BT_TRACE_LEVEL_ERROR   1        * Error condition trace messages
+**      BT_TRACE_LEVEL_WARNING 2        * Warning condition trace messages
+**      BT_TRACE_LEVEL_API     3        * API traces
+**      BT_TRACE_LEVEL_EVENT   4        * Debug messages for events
+**      BT_TRACE_LEVEL_DEBUG   5        * Debug messages (general)
+******************************************************************************/
+
+/* Core Stack default trace levels */
+#ifndef HCI_INITIAL_TRACE_LEVEL
+#define HCI_INITIAL_TRACE_LEVEL             BT_TRACE_LEVEL_WARNING
+#endif
+
+#ifndef BTM_INITIAL_TRACE_LEVEL
+#define BTM_INITIAL_TRACE_LEVEL             BT_TRACE_LEVEL_WARNING
+#endif
+
+#ifndef L2CAP_INITIAL_TRACE_LEVEL
+#define L2CAP_INITIAL_TRACE_LEVEL           BT_TRACE_LEVEL_WARNING
+#endif
+
+#ifndef RFCOMM_INITIAL_TRACE_LEVEL
+#define RFCOMM_INITIAL_TRACE_LEVEL          BT_TRACE_LEVEL_WARNING
+#endif
+
+#ifndef SDP_INITIAL_TRACE_LEVEL
+#define SDP_INITIAL_TRACE_LEVEL             BT_TRACE_LEVEL_WARNING
+#endif
+
+#ifndef GAP_INITIAL_TRACE_LEVEL
+#define GAP_INITIAL_TRACE_LEVEL             BT_TRACE_LEVEL_WARNING
+#endif
+
+#ifndef BNEP_INITIAL_TRACE_LEVEL
+#define BNEP_INITIAL_TRACE_LEVEL            BT_TRACE_LEVEL_WARNING
+#endif
+
+#ifndef PAN_INITIAL_TRACE_LEVEL
+#define PAN_INITIAL_TRACE_LEVEL             BT_TRACE_LEVEL_WARNING
+#endif
+
+#ifndef A2D_INITIAL_TRACE_LEVEL
+#define A2D_INITIAL_TRACE_LEVEL             BT_TRACE_LEVEL_WARNING
+#endif
+
+#ifndef AVDT_INITIAL_TRACE_LEVEL
+#define AVDT_INITIAL_TRACE_LEVEL            BT_TRACE_LEVEL_WARNING
+#endif
+
+#ifndef AVCT_INITIAL_TRACE_LEVEL
+#define AVCT_INITIAL_TRACE_LEVEL            BT_TRACE_LEVEL_WARNING
+#endif
+
+#ifndef AVRC_INITIAL_TRACE_LEVEL
+#define AVRC_INITIAL_TRACE_LEVEL            BT_TRACE_LEVEL_WARNING
+#endif
+
+#ifndef MCA_INITIAL_TRACE_LEVEL
+#define MCA_INITIAL_TRACE_LEVEL             BT_TRACE_LEVEL_WARNING
+#endif
+
+#ifndef HID_INITIAL_TRACE_LEVEL
+#define HID_INITIAL_TRACE_LEVEL             BT_TRACE_LEVEL_WARNING
+#endif
+
+#ifndef APPL_INITIAL_TRACE_LEVEL
+#define APPL_INITIAL_TRACE_LEVEL            BT_TRACE_LEVEL_WARNING
+#endif
+
+#ifndef BT_TRACE_APPL
+#define BT_TRACE_APPL   BT_USE_TRACES
+#endif
+
+#ifndef GATT_INITIAL_TRACE_LEVEL
+#define GATT_INITIAL_TRACE_LEVEL             BT_TRACE_LEVEL_WARNING
+#endif
+
+#ifndef SMP_INITIAL_TRACE_LEVEL
+#define SMP_INITIAL_TRACE_LEVEL             BT_TRACE_LEVEL_WARNING
+#endif
+
+#define BT_TRACE(l,t,...)                        LogMsg((TRACE_CTRL_GENERAL | (l) | TRACE_ORG_STACK | (t)), ##__VA_ARGS__)
+#define BT_ERROR_TRACE(l,...)                    LogMsg(TRACE_CTRL_GENERAL | (l) | TRACE_ORG_STACK | TRACE_TYPE_ERROR, ##__VA_ARGS__)
+
+/* Define tracing for the HCI unit
+*/
+
+#define HCI_TRACE_ERROR(...)                     {if (btu_trace_level >= BT_TRACE_LEVEL_ERROR) BT_TRACE(TRACE_LAYER_HCI, TRACE_TYPE_ERROR, ##__VA_ARGS__);}
+#define HCI_TRACE_WARNING(...)                   {if (btu_trace_level >= BT_TRACE_LEVEL_WARNING) BT_TRACE(TRACE_LAYER_HCI, TRACE_TYPE_WARNING, ##__VA_ARGS__);}
+#define HCI_TRACE_EVENT(...)                     {if (btu_trace_level >= BT_TRACE_LEVEL_EVENT) BT_TRACE(TRACE_LAYER_HCI, TRACE_TYPE_EVENT, ##__VA_ARGS__);}
+#define HCI_TRACE_DEBUG(...)                     {if (btu_trace_level >= BT_TRACE_LEVEL_DEBUG) BT_TRACE(TRACE_LAYER_HCI, TRACE_TYPE_DEBUG, ##__VA_ARGS__);}
+
+
+/* Define tracing for BTM
+*/
+#define BTM_TRACE_ERROR(...)                     {if (btm_cb.trace_level >= BT_TRACE_LEVEL_ERROR) BT_TRACE(TRACE_LAYER_BTM, TRACE_TYPE_ERROR, ##__VA_ARGS__);}
+#define BTM_TRACE_WARNING(...)                   {if (btm_cb.trace_level >= BT_TRACE_LEVEL_WARNING) BT_TRACE(TRACE_LAYER_BTM, TRACE_TYPE_WARNING, ##__VA_ARGS__);}
+#define BTM_TRACE_API(...)                       {if (btm_cb.trace_level >= BT_TRACE_LEVEL_API) BT_TRACE(TRACE_LAYER_BTM, TRACE_TYPE_API, ##__VA_ARGS__);}
+#define BTM_TRACE_EVENT(...)                     {if (btm_cb.trace_level >= BT_TRACE_LEVEL_EVENT) BT_TRACE(TRACE_LAYER_BTM, TRACE_TYPE_EVENT, ##__VA_ARGS__);}
+#define BTM_TRACE_DEBUG(...)                     {if (btm_cb.trace_level >= BT_TRACE_LEVEL_DEBUG) BT_TRACE(TRACE_LAYER_BTM, TRACE_TYPE_DEBUG, ##__VA_ARGS__);}
+
+
+/* Define tracing for the L2CAP unit
+*/
+#define L2CAP_TRACE_ERROR(...)                   {if (l2cb.l2cap_trace_level >= BT_TRACE_LEVEL_ERROR) BT_TRACE(TRACE_LAYER_L2CAP, TRACE_TYPE_ERROR, ##__VA_ARGS__);}
+#define L2CAP_TRACE_WARNING(...)                 {if (l2cb.l2cap_trace_level >= BT_TRACE_LEVEL_WARNING) BT_TRACE(TRACE_LAYER_L2CAP, TRACE_TYPE_WARNING, ##__VA_ARGS__);}
+#define L2CAP_TRACE_API(...)                     {if (l2cb.l2cap_trace_level >= BT_TRACE_LEVEL_API) BT_TRACE(TRACE_LAYER_L2CAP, TRACE_TYPE_API, ##__VA_ARGS__);}
+#define L2CAP_TRACE_EVENT(...)                   {if (l2cb.l2cap_trace_level >= BT_TRACE_LEVEL_EVENT) BT_TRACE(TRACE_LAYER_L2CAP, TRACE_TYPE_EVENT, ##__VA_ARGS__);}
+#define L2CAP_TRACE_DEBUG(...)                   {if (l2cb.l2cap_trace_level >= BT_TRACE_LEVEL_DEBUG) BT_TRACE(TRACE_LAYER_L2CAP, TRACE_TYPE_DEBUG, ##__VA_ARGS__);}
+
+/* Define tracing for the SDP unit
+*/
+#define SDP_TRACE_ERROR(...)                     {if (sdp_cb.trace_level >= BT_TRACE_LEVEL_ERROR) BT_TRACE(TRACE_LAYER_SDP, TRACE_TYPE_ERROR, ##__VA_ARGS__);}
+#define SDP_TRACE_WARNING(...)                   {if (sdp_cb.trace_level >= BT_TRACE_LEVEL_WARNING) BT_TRACE(TRACE_LAYER_SDP, TRACE_TYPE_WARNING, ##__VA_ARGS__);}
+#define SDP_TRACE_API(...)                       {if (sdp_cb.trace_level >= BT_TRACE_LEVEL_API) BT_TRACE(TRACE_LAYER_SDP, TRACE_TYPE_API, ##__VA_ARGS__);}
+#define SDP_TRACE_EVENT(...)                     {if (sdp_cb.trace_level >= BT_TRACE_LEVEL_EVENT) BT_TRACE(TRACE_LAYER_SDP, TRACE_TYPE_EVENT, ##__VA_ARGS__);}
+#define SDP_TRACE_DEBUG(...)                     {if (sdp_cb.trace_level >= BT_TRACE_LEVEL_DEBUG) BT_TRACE(TRACE_LAYER_SDP, TRACE_TYPE_DEBUG, ##__VA_ARGS__);}
+
+/* Define tracing for the RFCOMM unit
+*/
+#define RFCOMM_TRACE_ERROR(...)                  {if (rfc_cb.trace_level >= BT_TRACE_LEVEL_ERROR) BT_TRACE(TRACE_LAYER_RFCOMM, TRACE_TYPE_ERROR, ##__VA_ARGS__);}
+#define RFCOMM_TRACE_WARNING(...)                {if (rfc_cb.trace_level >= BT_TRACE_LEVEL_WARNING) BT_TRACE(TRACE_LAYER_RFCOMM, TRACE_TYPE_WARNING, ##__VA_ARGS__);}
+#define RFCOMM_TRACE_API(...)                    {if (rfc_cb.trace_level >= BT_TRACE_LEVEL_API) BT_TRACE(TRACE_LAYER_RFCOMM, TRACE_TYPE_API, ##__VA_ARGS__);}
+#define RFCOMM_TRACE_EVENT(...)                  {if (rfc_cb.trace_level >= BT_TRACE_LEVEL_EVENT) BT_TRACE(TRACE_LAYER_RFCOMM, TRACE_TYPE_EVENT, ##__VA_ARGS__);}
+#define RFCOMM_TRACE_DEBUG(...)                  {if (rfc_cb.trace_level >= BT_TRACE_LEVEL_DEBUG) BT_TRACE(TRACE_LAYER_RFCOMM, TRACE_TYPE_DEBUG, ##__VA_ARGS__);}
+
+/* Generic Access Profile traces */
+#define GAP_TRACE_ERROR(...)                     {if (gap_cb.trace_level >= BT_TRACE_LEVEL_ERROR) BT_TRACE(TRACE_LAYER_GAP, TRACE_TYPE_ERROR, ##__VA_ARGS__);}
+#define GAP_TRACE_EVENT(...)                     {if (gap_cb.trace_level >= BT_TRACE_LEVEL_EVENT) BT_TRACE(TRACE_LAYER_GAP, TRACE_TYPE_EVENT, ##__VA_ARGS__);}
+#define GAP_TRACE_API(...)                       {if (gap_cb.trace_level >= BT_TRACE_LEVEL_API) BT_TRACE(TRACE_LAYER_GAP, TRACE_TYPE_API, ##__VA_ARGS__);}
+#define GAP_TRACE_WARNING(...)                   {if (gap_cb.trace_level >= BT_TRACE_LEVEL_WARNING) BT_TRACE(TRACE_LAYER_GAP, TRACE_TYPE_WARNING, ##__VA_ARGS__);}
+
+/* define traces for HID Host */
+#define HIDH_TRACE_ERROR(...)                     {if (hh_cb.trace_level >= BT_TRACE_LEVEL_ERROR) BT_TRACE(TRACE_LAYER_HID, TRACE_TYPE_ERROR, ##__VA_ARGS__);}
+#define HIDH_TRACE_WARNING(...)                   {if (hh_cb.trace_level >= BT_TRACE_LEVEL_WARNING) BT_TRACE(TRACE_LAYER_HID, TRACE_TYPE_WARNING, ##__VA_ARGS__);}
+#define HIDH_TRACE_API(...)                       {if (hh_cb.trace_level >= BT_TRACE_LEVEL_API) BT_TRACE(TRACE_LAYER_HID, TRACE_TYPE_API, ##__VA_ARGS__);}
+#define HIDH_TRACE_EVENT(...)                     {if (hh_cb.trace_level >= BT_TRACE_LEVEL_EVENT) BT_TRACE(TRACE_LAYER_HID, TRACE_TYPE_EVENT, ##__VA_ARGS__);}
+#define HIDH_TRACE_DEBUG(...)                     {if (hh_cb.trace_level >= BT_TRACE_LEVEL_DEBUG) BT_TRACE(TRACE_LAYER_HID, TRACE_TYPE_DEBUG, ##__VA_ARGS__);}
+
+/* define traces for BNEP */
+
+#define BNEP_TRACE_ERROR(...)                     {if (bnep_cb.trace_level >= BT_TRACE_LEVEL_ERROR) BT_TRACE(TRACE_LAYER_BNEP, TRACE_TYPE_ERROR, ##__VA_ARGS__);}
+#define BNEP_TRACE_WARNING(...)                   {if (bnep_cb.trace_level >= BT_TRACE_LEVEL_WARNING) BT_TRACE(TRACE_LAYER_BNEP, TRACE_TYPE_WARNING, ##__VA_ARGS__);}
+#define BNEP_TRACE_API(...)                       {if (bnep_cb.trace_level >= BT_TRACE_LEVEL_API) BT_TRACE(TRACE_LAYER_BNEP, TRACE_TYPE_API, ##__VA_ARGS__);}
+#define BNEP_TRACE_EVENT(...)                     {if (bnep_cb.trace_level >= BT_TRACE_LEVEL_EVENT) BT_TRACE(TRACE_LAYER_BNEP, TRACE_TYPE_EVENT, ##__VA_ARGS__);}
+#define BNEP_TRACE_DEBUG(...)                     {if (bnep_cb.trace_level >= BT_TRACE_LEVEL_DEBUG) BT_TRACE(TRACE_LAYER_BNEP, TRACE_TYPE_DEBUG, ##__VA_ARGS__);}
+
+/* define traces for PAN */
+
+#define PAN_TRACE_ERROR(...)                     {if (pan_cb.trace_level >= BT_TRACE_LEVEL_ERROR) BT_TRACE(TRACE_LAYER_PAN, TRACE_TYPE_ERROR, ##__VA_ARGS__);}
+#define PAN_TRACE_WARNING(...)                   {if (pan_cb.trace_level >= BT_TRACE_LEVEL_WARNING) BT_TRACE(TRACE_LAYER_PAN, TRACE_TYPE_WARNING, ##__VA_ARGS__);}
+#define PAN_TRACE_API(...)                       {if (pan_cb.trace_level >= BT_TRACE_LEVEL_API) BT_TRACE(TRACE_LAYER_PAN, TRACE_TYPE_API, ##__VA_ARGS__);}
+#define PAN_TRACE_EVENT(...)                     {if (pan_cb.trace_level >= BT_TRACE_LEVEL_EVENT) BT_TRACE(TRACE_LAYER_PAN, TRACE_TYPE_EVENT, ##__VA_ARGS__);}
+#define PAN_TRACE_DEBUG(...)                     {if (pan_cb.trace_level >= BT_TRACE_LEVEL_DEBUG) BT_TRACE(TRACE_LAYER_PAN, TRACE_TYPE_DEBUG, ##__VA_ARGS__);}
+
+/* Define tracing for the A2DP profile
+*/
+#define A2D_TRACE_ERROR(...)                      {if (a2d_cb.trace_level >= BT_TRACE_LEVEL_ERROR) BT_TRACE(TRACE_LAYER_A2D, TRACE_TYPE_ERROR,##__VA_ARGS__);}
+#define A2D_TRACE_WARNING(...)                    {if (a2d_cb.trace_level >= BT_TRACE_LEVEL_WARNING) BT_TRACE(TRACE_LAYER_A2D, TRACE_TYPE_WARNING,##__VA_ARGS__);}
+#define A2D_TRACE_EVENT(...)                      {if (a2d_cb.trace_level >= BT_TRACE_LEVEL_EVENT) BT_TRACE(TRACE_LAYER_A2D, TRACE_TYPE_EVENT,##__VA_ARGS__);}
+#define A2D_TRACE_DEBUG(...)                      {if (a2d_cb.trace_level >= BT_TRACE_LEVEL_DEBUG) BT_TRACE(TRACE_LAYER_A2D, TRACE_TYPE_DEBUG,##__VA_ARGS__);}
+#define A2D_TRACE_API(...)                        {if (a2d_cb.trace_level >= BT_TRACE_LEVEL_API) BT_TRACE(TRACE_LAYER_A2D, TRACE_TYPE_API,##__VA_ARGS__);}
+
+/* AVDTP
+*/
+#define AVDT_TRACE_ERROR(...)                     {if (avdt_cb.trace_level >= BT_TRACE_LEVEL_ERROR) BT_TRACE(TRACE_LAYER_AVP, TRACE_TYPE_ERROR, ##__VA_ARGS__);}
+#define AVDT_TRACE_WARNING(...)                   {if (avdt_cb.trace_level >= BT_TRACE_LEVEL_WARNING) BT_TRACE(TRACE_LAYER_AVP, TRACE_TYPE_WARNING, ##__VA_ARGS__);}
+#define AVDT_TRACE_EVENT(...)                     {if (avdt_cb.trace_level >= BT_TRACE_LEVEL_EVENT) BT_TRACE(TRACE_LAYER_AVP, TRACE_TYPE_EVENT, ##__VA_ARGS__);}
+#define AVDT_TRACE_DEBUG(...)                     {if (avdt_cb.trace_level >= BT_TRACE_LEVEL_DEBUG) BT_TRACE(TRACE_LAYER_AVP, TRACE_TYPE_DEBUG, ##__VA_ARGS__);}
+#define AVDT_TRACE_API(...)                       {if (avdt_cb.trace_level >= BT_TRACE_LEVEL_API) BT_TRACE(TRACE_LAYER_AVP, TRACE_TYPE_API, ##__VA_ARGS__);}
+
+/* Define tracing for the AVCTP protocol
+*/
+#define AVCT_TRACE_ERROR(...)                     {if (avct_cb.trace_level >= BT_TRACE_LEVEL_ERROR) BT_TRACE(TRACE_LAYER_AVP, TRACE_TYPE_ERROR, ##__VA_ARGS__);}
+#define AVCT_TRACE_WARNING(...)                   {if (avct_cb.trace_level >= BT_TRACE_LEVEL_WARNING) BT_TRACE(TRACE_LAYER_AVP, TRACE_TYPE_WARNING, ##__VA_ARGS__);}
+#define AVCT_TRACE_EVENT(...)                     {if (avct_cb.trace_level >= BT_TRACE_LEVEL_EVENT) BT_TRACE(TRACE_LAYER_AVP, TRACE_TYPE_EVENT, ##__VA_ARGS__);}
+#define AVCT_TRACE_DEBUG(...)                     {if (avct_cb.trace_level >= BT_TRACE_LEVEL_DEBUG) BT_TRACE(TRACE_LAYER_AVP, TRACE_TYPE_DEBUG, ##__VA_ARGS__);}
+#define AVCT_TRACE_API(...)                       {if (avct_cb.trace_level >= BT_TRACE_LEVEL_API) BT_TRACE(TRACE_LAYER_AVP, TRACE_TYPE_API, ##__VA_ARGS__);}
+
+/* Define tracing for the AVRCP profile
+*/
+#define AVRC_TRACE_ERROR(...)                      {if (avrc_cb.trace_level >= BT_TRACE_LEVEL_ERROR) BT_TRACE(TRACE_LAYER_AVP, TRACE_TYPE_ERROR, ##__VA_ARGS__);}
+#define AVRC_TRACE_WARNING(...)                    {if (avrc_cb.trace_level >= BT_TRACE_LEVEL_WARNING) BT_TRACE(TRACE_LAYER_AVP, TRACE_TYPE_WARNING, ##__VA_ARGS__);}
+#define AVRC_TRACE_EVENT(...)                      {if (avrc_cb.trace_level >= BT_TRACE_LEVEL_EVENT) BT_TRACE(TRACE_LAYER_AVP, TRACE_TYPE_EVENT, ##__VA_ARGS__);}
+#define AVRC_TRACE_DEBUG(...)                      {if (avrc_cb.trace_level >= BT_TRACE_LEVEL_DEBUG) BT_TRACE(TRACE_LAYER_AVP, TRACE_TYPE_DEBUG, ##__VA_ARGS__);}
+#define AVRC_TRACE_API(...)                        {if (avrc_cb.trace_level >= BT_TRACE_LEVEL_API) BT_TRACE(TRACE_LAYER_AVP, TRACE_TYPE_API, ##__VA_ARGS__);}
+
+/* MCAP
+*/
+#define MCA_TRACE_ERROR(...)                     {if (mca_cb.trace_level >= BT_TRACE_LEVEL_ERROR) BT_TRACE(TRACE_LAYER_MCA, TRACE_TYPE_ERROR, ##__VA_ARGS__);}
+#define MCA_TRACE_WARNING(...)                   {if (mca_cb.trace_level >= BT_TRACE_LEVEL_WARNING) BT_TRACE(TRACE_LAYER_MCA, TRACE_TYPE_WARNING, ##__VA_ARGS__);}
+#define MCA_TRACE_EVENT(...)                     {if (mca_cb.trace_level >= BT_TRACE_LEVEL_EVENT) BT_TRACE(TRACE_LAYER_MCA, TRACE_TYPE_EVENT, ##__VA_ARGS__);}
+#define MCA_TRACE_DEBUG(...)                     {if (mca_cb.trace_level >= BT_TRACE_LEVEL_DEBUG) BT_TRACE(TRACE_LAYER_MCA, TRACE_TYPE_DEBUG, ##__VA_ARGS__);}
+#define MCA_TRACE_API(...)                       {if (mca_cb.trace_level >= BT_TRACE_LEVEL_API) BT_TRACE(TRACE_LAYER_MCA, TRACE_TYPE_API, ##__VA_ARGS__);}
+
+/* Define tracing for the ATT/GATT unit
+*/
+#define GATT_TRACE_ERROR(...)                     {if (gatt_cb.trace_level >= BT_TRACE_LEVEL_ERROR) BT_TRACE(TRACE_LAYER_ATT, TRACE_TYPE_ERROR, ##__VA_ARGS__);}
+#define GATT_TRACE_WARNING(...)                   {if (gatt_cb.trace_level >= BT_TRACE_LEVEL_WARNING) BT_TRACE(TRACE_LAYER_ATT, TRACE_TYPE_WARNING, ##__VA_ARGS__);}
+#define GATT_TRACE_API(...)                       {if (gatt_cb.trace_level >= BT_TRACE_LEVEL_API) BT_TRACE(TRACE_LAYER_ATT, TRACE_TYPE_API, ##__VA_ARGS__);}
+#define GATT_TRACE_EVENT(...)                     {if (gatt_cb.trace_level >= BT_TRACE_LEVEL_EVENT) BT_TRACE(TRACE_LAYER_ATT, TRACE_TYPE_EVENT, ##__VA_ARGS__);}
+#define GATT_TRACE_DEBUG(...)                     {if (gatt_cb.trace_level >= BT_TRACE_LEVEL_DEBUG) BT_TRACE(TRACE_LAYER_ATT, TRACE_TYPE_DEBUG, ##__VA_ARGS__);}
+
+/* Define tracing for the SMP unit
+*/
+#define SMP_TRACE_ERROR(...)                     {if (smp_cb.trace_level >= BT_TRACE_LEVEL_ERROR) BT_TRACE(TRACE_LAYER_SMP, TRACE_TYPE_ERROR, ##__VA_ARGS__);}
+#define SMP_TRACE_WARNING(...)                   {if (smp_cb.trace_level >= BT_TRACE_LEVEL_WARNING) BT_TRACE(TRACE_LAYER_SMP, TRACE_TYPE_WARNING, ##__VA_ARGS__);}
+#define SMP_TRACE_API(...)                       {if (smp_cb.trace_level >= BT_TRACE_LEVEL_API) BT_TRACE(TRACE_LAYER_SMP, TRACE_TYPE_API, ##__VA_ARGS__);}
+#define SMP_TRACE_EVENT(...)                     {if (smp_cb.trace_level >= BT_TRACE_LEVEL_EVENT) BT_TRACE(TRACE_LAYER_SMP, TRACE_TYPE_EVENT, ##__VA_ARGS__);}
+#define SMP_TRACE_DEBUG(...)                     {if (smp_cb.trace_level >= BT_TRACE_LEVEL_DEBUG) BT_TRACE(TRACE_LAYER_SMP, TRACE_TYPE_DEBUG, ##__VA_ARGS__);}
+
+extern UINT8 btif_trace_level;
+
+/* define traces for application */
+#define BTIF_TRACE_ERROR(...)                    {if (btif_trace_level >= BT_TRACE_LEVEL_ERROR) LogMsg(TRACE_CTRL_GENERAL | TRACE_LAYER_NONE | TRACE_ORG_APPL | TRACE_TYPE_ERROR, ##__VA_ARGS__);}
+#define BTIF_TRACE_WARNING(...)                  {if (btif_trace_level >= BT_TRACE_LEVEL_WARNING) LogMsg(TRACE_CTRL_GENERAL | TRACE_LAYER_NONE | TRACE_ORG_APPL | TRACE_TYPE_WARNING, ##__VA_ARGS__);}
+#define BTIF_TRACE_API(...)                      {if (btif_trace_level >= BT_TRACE_LEVEL_API) LogMsg(TRACE_CTRL_GENERAL | TRACE_LAYER_NONE | TRACE_ORG_APPL | TRACE_TYPE_API, ##__VA_ARGS__);}
+#define BTIF_TRACE_EVENT(...)                    {if (btif_trace_level >= BT_TRACE_LEVEL_EVENT) LogMsg(TRACE_CTRL_GENERAL | TRACE_LAYER_NONE | TRACE_ORG_APPL | TRACE_TYPE_EVENT, ##__VA_ARGS__);}
+#define BTIF_TRACE_DEBUG(...)                    {if (btif_trace_level >= BT_TRACE_LEVEL_DEBUG) LogMsg(TRACE_CTRL_GENERAL | TRACE_LAYER_NONE | TRACE_ORG_APPL | TRACE_TYPE_DEBUG, ##__VA_ARGS__);}
+#define BTIF_TRACE_VERBOSE(...)                  {if (btif_trace_level >= BT_TRACE_LEVEL_VERBOSE) LogMsg(TRACE_CTRL_GENERAL | TRACE_LAYER_NONE | TRACE_ORG_APPL | TRACE_TYPE_DEBUG, ##__VA_ARGS__);}
+
+/* define traces for application */
+#define APPL_TRACE_ERROR(...)                    {if (appl_trace_level >= BT_TRACE_LEVEL_ERROR) LogMsg(TRACE_CTRL_GENERAL | TRACE_LAYER_NONE | TRACE_ORG_APPL | TRACE_TYPE_ERROR, ##__VA_ARGS__);}
+#define APPL_TRACE_WARNING(...)                  {if (appl_trace_level >= BT_TRACE_LEVEL_WARNING) LogMsg(TRACE_CTRL_GENERAL | TRACE_LAYER_NONE | TRACE_ORG_APPL | TRACE_TYPE_WARNING, ##__VA_ARGS__);}
+#define APPL_TRACE_API(...)                      {if (appl_trace_level >= BT_TRACE_LEVEL_API) LogMsg(TRACE_CTRL_GENERAL | TRACE_LAYER_NONE | TRACE_ORG_APPL | TRACE_TYPE_API, ##__VA_ARGS__);}
+#define APPL_TRACE_EVENT(...)                    {if (appl_trace_level >= BT_TRACE_LEVEL_EVENT) LogMsg(TRACE_CTRL_GENERAL | TRACE_LAYER_NONE | TRACE_ORG_APPL | TRACE_TYPE_EVENT, ##__VA_ARGS__);}
+#define APPL_TRACE_DEBUG(...)                    {if (appl_trace_level >= BT_TRACE_LEVEL_DEBUG) LogMsg(TRACE_CTRL_GENERAL | TRACE_LAYER_NONE | TRACE_ORG_APPL | TRACE_TYPE_DEBUG, ##__VA_ARGS__);}
+#define APPL_TRACE_VERBOSE(...)                  {if (appl_trace_level >= BT_TRACE_LEVEL_VERBOSE) LogMsg(TRACE_CTRL_GENERAL | TRACE_LAYER_NONE | TRACE_ORG_APPL | TRACE_TYPE_DEBUG, ##__VA_ARGS__);}
+
+/* Simplified Trace Helper Macro
+*/
+#define bdld(fmt, ...) \
+    do{\
+        if((MY_LOG_LEVEL) >= BT_TRACE_LEVEL_DEBUG) \
+            LogMsg((MY_LOG_LAYER) | TRACE_TYPE_DEBUG, "%s(L%d): " fmt, __FUNCTION__, __LINE__,  ## __VA_ARGS__); \
+    }while(0)
+
+#define bdlw(fmt, ...) \
+    do{\
+        if((MY_LOG_LEVEL) >= BT_TRACE_LEVEL_DEBUG) \
+            LogMsg((MY_LOG_LAYER) | TRACE_TYPE_WARNING, "%s(L%d): " fmt, __FUNCTION__, __LINE__,  ## __VA_ARGS__); \
+    }while(0)
+
+#define bdle(fmt, ...) \
+    do{\
+        if((MY_LOG_LEVEL) >= BT_TRACE_LEVEL_DEBUG) \
+            LogMsg((MY_LOG_LAYER) | TRACE_TYPE_ERROR, "%s(L%d): " fmt, __FUNCTION__, __LINE__,  ## __VA_ARGS__); \
+    }while(0)
+
+#define bdla(assert_if) \
+    do{\
+        if(((MY_LOG_LEVEL) >= BT_TRACE_LEVEL_ERROR) && !(assert_if)) \
+            LogMsg((MY_LOG_LAYER) | TRACE_TYPE_ERROR, "%s(L%d): assert failed: " #assert_if, __FUNCTION__, __LINE__); \
+    }while(0)
+
+typedef UINT8 tBTTRC_PARAM_TYPE;
+typedef UINT8 tBTTRC_LAYER_ID;
+typedef UINT8 tBTTRC_TYPE;
+
+typedef struct {
+    tBTTRC_LAYER_ID layer_id;
+    tBTTRC_TYPE     type;      /* TODO: use tBTTRC_TYPE instead of "classical level 0-5" */
+} tBTTRC_LEVEL;
+
+typedef UINT8 (tBTTRC_SET_TRACE_LEVEL)( UINT8 );
+
+typedef struct {
+    const tBTTRC_LAYER_ID         layer_id_start;
+    const tBTTRC_LAYER_ID         layer_id_end;
+    tBTTRC_SET_TRACE_LEVEL        *p_f;
+    const char                    *trc_name;
+    UINT8                         trace_level;
+} tBTTRC_FUNC_MAP;
+
+/* External declaration for appl_trace_level here to avoid to add the declaration in all the files using APPL_TRACExxx macros */
+extern UINT8 appl_trace_level;
+
+void LogMsg (UINT32 trace_set_mask, const char *fmt_str, ...);
diff --git a/rtkbt/code/bt/include/bte.h b/rtkbt/code/bt/include/bte.h
new file mode 100755
index 0000000..61002d5
--- /dev/null
+++ b/rtkbt/code/bt/include/bte.h
@@ -0,0 +1,114 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2001-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  this file contains constants and definitions for the bte project
+ *
+ ******************************************************************************/
+#ifndef BTE_H
+#define BTE_H
+
+#include <semaphore.h>
+#include <signal.h>
+#include <pthread.h>
+#include "bt_target.h"
+
+/* by default on shutdown, baudrate is reset 115kbits. this should NOT be need for platforms
+ * that kill BTE driver and remove/reset BT chip
+ */
+#ifndef BTE_RESET_BAUD_ON_BT_DISABLE
+#define BTE_RESET_BAUD_ON_BT_DISABLE TRUE
+#endif
+
+/* Target Modes (based on jumper settings on hardware [see user manual]) */
+enum
+{
+                            /* BTE                  BBY                     */
+                            /* J3   J4              SW3-3   SW3-2   SW3-1   */
+                            /* -------------------------------------------- */
+    BTE_MODE_SERIAL_APP,    /* OUT  OUT             OFF     OFF     OFF     Sample serial port application      */
+    BTE_MODE_APPL,    	    /* IN   OUT             OFF     OFF     ON      Target used with Tester through RPC */
+    BTE_MODE_RESERVED,      /* OUT  IN              OFF     ON      OFF     Reserved                            */
+    BTE_MODE_SAMPLE_APPS,   /* IN   IN              OFF     ON      ON      Sample applications (ICP/HSP)       */
+    BTE_MODE_DONGLE,        /* not yet supported    ON      OFF     OFF     Dongle mode                         */
+    BTE_MODE_APPL_PROTOCOL_TRACE, /* this is a fake mode do allow protocol tracing in application without rpc */
+    BTE_MODE_INVALID
+};
+
+extern volatile UINT8    bte_target_mode;    /* indicates the mode that the board is running in */
+
+/* Startup options */
+extern UINT32 bte_startup_options;                      /* Switch and jumper settings at startup */
+void bte_get_startup_options(UINT32 *p_options);        /* Platform specific function for getting startup options */
+
+#define BTE_OPTIONS_TARGET_MODE_MASK    0x00000007      /* bits 2-0 indicate target mode (QuickConnect: jp3 & jp4, BBY: SW3-1 & SW3-2)*/
+
+
+/****************************************************************************
+ * Definitions to define which type of application gets built
+ ****************************************************************************/
+#define BUILD_HCITOOL         FALSE
+#define BUILD_L2PING          FALSE
+
+
+#define LINUX_FM_DRIVER_INCLUDED		FALSE
+
+
+/* hcisu userial operations. should probably go into bt_types to avoid collisions! */
+#define BT_EVT_TO_HCISU_USERIAL_OP (0x0080 | BT_EVT_HCISU)
+/* operation for above hcisu event */
+#define BT_HCISU_USERIAL_OPEN (0)   /* open serial port calling USERIAL_Open() */
+#define BT_HCISU_USERIAL_CLOSE (1)  /* close userial port */
+/* options associated with close op */
+#define BT_HCISU_USERIAL_CL_NO_DIS_BT   0 /* do not touch bt_wake and power gpio */
+#define BT_HCISU_USERIAL_CL_DIS_BT      1 /* put power and bt_wake into defined off state to preserve
+                                             power */
+/* status codes for callback */
+#define BTE_HCISU_USERIAL_FAIL      0
+#define BTE_HCISU_USERIAL_OK        1
+typedef void (tUSERIAL_MSG_CBACK) (int status);
+typedef struct tHCISU_USERIAL_MSG_tag {
+    BT_HDR      hdr;
+    tUSERIAL_MSG_CBACK *p_cback;
+    UINT8       port;   /* port number */
+    UINT8       op;
+    UINT8       option; /* option for operation. depends on operation */
+} tHCISU_USERIAL_MSG;
+
+extern void bte_hcisu_userial_oper( tUSERIAL_MSG_CBACK *p_cback, UINT8 port, UINT8 op, UINT8 option );
+
+/* Pointer to function for sending HCI commands and data to the HCI tranport */
+extern int (*p_bte_hci_send)(UINT16 port, BT_HDR *p_msg);
+
+
+/* Protocol trace mask */
+extern UINT32 bte_proto_trace_mask;
+
+typedef struct tBAUD_REG_tag {
+    UINT8 DHBR;
+    UINT8 DLBR;
+    UINT8 ExplicitBaudRate0;
+    UINT8 ExplicitBaudRate1;
+    UINT8 ExplicitBaudRate2;
+    UINT8 ExplicitBaudRate3;
+} tBAUD_REG;
+
+extern const tBAUD_REG baud_rate_regs[];
+
+#endif  /* BTE_H */
diff --git a/rtkbt/code/bt/include/bte_appl.h b/rtkbt/code/bt/include/bte_appl.h
new file mode 100755
index 0000000..4850250
--- /dev/null
+++ b/rtkbt/code/bt/include/bte_appl.h
@@ -0,0 +1,37 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2002-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the interface file for the bte application task
+ *
+ ******************************************************************************/
+
+#pragma once
+
+typedef struct {
+#if ((BLE_INCLUDED == TRUE) && (SMP_INCLUDED == TRUE))
+    UINT8   ble_auth_req;
+    UINT8   ble_io_cap;
+    UINT8   ble_init_key;
+    UINT8   ble_resp_key;
+    UINT8   ble_max_key_size;
+#endif
+} tBTE_APPL_CFG;
+
+extern tBTE_APPL_CFG bte_appl_cfg;
diff --git a/rtkbt/code/bt/include/stack_config.h b/rtkbt/code/bt/include/stack_config.h
new file mode 100755
index 0000000..c797a57
--- /dev/null
+++ b/rtkbt/code/bt/include/stack_config.h
@@ -0,0 +1,55 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+#include <stdbool.h>
+
+#include "osi/include/config.h"
+#include "module.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+static const char STACK_CONFIG_MODULE[] = "stack_config_module";
+
+typedef struct {
+  const char *(*get_btsnoop_log_path)(void);
+  bool (*get_btsnoop_turned_on)(void);
+  bool (*get_btsnoop_should_save_last)(void);
+  bool (*get_trace_config_enabled)(void);
+#ifdef BLUETOOTH_RTK
+  int  (*get_btsnoop_heartbeat_log)(void);
+  const char* (*get_btsnoop_bqb_log)(void);
+  int (*get_btsnoop_h5enable_log)(void);
+  int (*get_btsnoop_coexenable_log)(void);
+#endif
+  bool (*get_pts_secure_only_mode)(void);
+  bool (*get_pts_conn_updates_disabled)(void);
+  bool (*get_pts_crosskey_sdp_disable)(void);
+  const char* (*get_pts_smp_options)(void);
+  int (*get_pts_smp_failure_case)(void);
+  config_t *(*get_all)(void);
+} stack_config_t;
+
+const stack_config_t *stack_config_get_interface();
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/rtkbt/code/bt/main/Android.mk b/rtkbt/code/bt/main/Android.mk
new file mode 100755
index 0000000..39036e4
--- /dev/null
+++ b/rtkbt/code/bt/main/Android.mk
@@ -0,0 +1,113 @@
+LOCAL_PATH:= $(call my-dir)
+
+# Bluetooth main HW module / shared library for target
+# ========================================================
+include $(CLEAR_VARS)
+
+# platform specific
+LOCAL_SRC_FILES+= \
+	bte_main.c \
+	bte_init.c \
+	bte_logmsg.c \
+	bte_conf.c \
+	stack_config.c
+
+# sbc encoder
+LOCAL_SRC_FILES+= \
+	../embdrv/sbc/encoder/srce/sbc_analysis.c \
+	../embdrv/sbc/encoder/srce/sbc_dct.c \
+	../embdrv/sbc/encoder/srce/sbc_dct_coeffs.c \
+	../embdrv/sbc/encoder/srce/sbc_enc_bit_alloc_mono.c \
+	../embdrv/sbc/encoder/srce/sbc_enc_bit_alloc_ste.c \
+	../embdrv/sbc/encoder/srce/sbc_enc_coeffs.c \
+	../embdrv/sbc/encoder/srce/sbc_encoder.c \
+	../embdrv/sbc/encoder/srce/sbc_packing.c \
+
+LOCAL_SRC_FILES+= \
+	../udrv/ulinux/uipc.c
+
+LOCAL_C_INCLUDES+= . \
+	$(LOCAL_PATH)/../ \
+	$(LOCAL_PATH)/../bta/include \
+	$(LOCAL_PATH)/../bta/sys \
+	$(LOCAL_PATH)/../bta/dm \
+	$(LOCAL_PATH)/../btcore/include \
+	$(LOCAL_PATH)/../include \
+	$(LOCAL_PATH)/../stack/include \
+	$(LOCAL_PATH)/../stack/l2cap \
+	$(LOCAL_PATH)/../stack/a2dp \
+	$(LOCAL_PATH)/../stack/btm \
+	$(LOCAL_PATH)/../stack/avdt \
+	$(LOCAL_PATH)/../hcis \
+	$(LOCAL_PATH)/../hcis/include \
+	$(LOCAL_PATH)/../hcis/patchram \
+	$(LOCAL_PATH)/../udrv/include \
+	$(LOCAL_PATH)/../btif/include \
+	$(LOCAL_PATH)/../btif/co \
+	$(LOCAL_PATH)/../hci/include\
+	$(LOCAL_PATH)/../vnd/include \
+	$(LOCAL_PATH)/../brcm/include \
+	$(LOCAL_PATH)/../embdrv/sbc/encoder/include \
+	$(LOCAL_PATH)/../embdrv/sbc/decoder/include \
+	$(LOCAL_PATH)/../audio_a2dp_hw \
+	$(LOCAL_PATH)/../utils/include \
+	$(bluetooth_C_INCLUDES) \
+	external/tinyxml2 \
+	external/zlib
+
+LOCAL_SHARED_LIBRARIES := \
+    libcutils \
+    libdl \
+    liblog \
+    libz \
+    libpower \
+    libprotobuf-cpp-full \
+    libmedia \
+    libutils \
+    libchrome \
+    libhardware_legacy
+
+LOCAL_STATIC_LIBRARIES := \
+    libtinyxml2 \
+    libbt-qcom_sbc_decoder
+
+LOCAL_WHOLE_STATIC_LIBRARIES := \
+    libbt-bta-rtk \
+    libbtdevice-rtk \
+    libbtif-rtk \
+    libbt-hci-rtk \
+    libbt-protos-rtk \
+    libbt-stack-rtk \
+    libbt-utils-rtk \
+    libbtcore-rtk \
+    libosi-rtk
+LOCAL_STATIC_LIBRARIES += \
+    libbt-rtkbt
+
+LOCAL_MODULE := bluetooth_rtk.default
+LOCAL_MODULE_RELATIVE_PATH := hw
+LOCAL_MODULE_TAGS := optional
+LOCAL_MODULE_CLASS := SHARED_LIBRARIES
+
+#
+# Shared library link options.
+# References to global symbols and functions should bind to the library
+# itself. This is to avoid issues with some of the unit/system tests
+# that might link statically with some of the code in the library, and
+# also dlopen(3) the shared library.
+#
+LOCAL_LDLIBS := -Wl,-Bsymbolic,-Bsymbolic-functions
+
+LOCAL_REQUIRED_MODULES := \
+    bt_did.conf \
+    bt_stack.conf \
+    libbt-hci-rtk \
+    libbt-vendor_uart \
+    libbt-vendor_usb \
+    libbt-vendor
+
+LOCAL_CFLAGS += $(bluetooth_CFLAGS) -DBUILDCFG
+LOCAL_CONLYFLAGS += $(bluetooth_CONLYFLAGS)
+LOCAL_CPPFLAGS += $(bluetooth_CPPFLAGS)
+
+include $(BUILD_SHARED_LIBRARY)
diff --git a/rtkbt/code/bt/main/BUILD.gn b/rtkbt/code/bt/main/BUILD.gn
new file mode 100755
index 0000000..05bcb6f
--- /dev/null
+++ b/rtkbt/code/bt/main/BUILD.gn
@@ -0,0 +1,85 @@
+#
+#  Copyright (C) 2015 Google, Inc.
+#
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at:
+#
+#  http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+#
+
+shared_library("bluetooth.default") {
+  # HAL layer
+  sources = [
+    "//btif/src/bluetooth.c",
+  ]
+
+  # platform specific
+  sources += [
+    "bte_main.c",
+    "bte_init.c",
+    "bte_logmsg.c",
+    "bte_conf.c",
+    "stack_config.c",
+  ]
+
+  include_dirs = [
+    "//",
+    "//bta/include",
+    "//bta/sys",
+    "//bta/dm",
+    "//btcore/include",
+    "//include",
+    "//stack/include",
+    "//stack/l2cap",
+    "//stack/a2dp",
+    "//stack/btm",
+    "//stack/avdt",
+    "//hci",
+    "//hci/include",
+    "//udrv/include",
+    "//btif/include",
+    "//btif/co",
+    "//hci/includ",
+    "//vnd/include",
+    "//brcm/include",
+    "//embdrv/sbc/encoder/include",
+    "//embdrv/sbc/decoder/include",
+    "//audio_a2dp_hw",
+    "//utils/include",
+    "//test/suite",
+  ]
+
+  deps = [
+    "//audio_a2dp_hw:audio.a2dp.default",
+    "//bta",
+    "//btcore",
+    "//btif",
+    "//device",
+    "//embdrv/sbc",
+    "//hci",
+    "//osi",
+    "//stack",
+    "//third_party/tinyxml2",
+    "//udrv",
+    "//utils",
+  ]
+
+  cflags_c = [
+    "-Lobj/osi",
+    "-losi",
+  ]
+  libs = [
+    "-ldl",
+    "-lpthread",
+    "-lresolv",
+    "-lrt",
+    "-lz",
+  ]
+}
diff --git a/rtkbt/code/bt/main/bte_conf.c b/rtkbt/code/bt/main/bte_conf.c
new file mode 100755
index 0000000..5fe18ac
--- /dev/null
+++ b/rtkbt/code/bt/main/bte_conf.c
@@ -0,0 +1,124 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_bte_conf"
+
+#include <assert.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "bta_api.h"
+#include "osi/include/compat.h"
+#include "osi/include/config.h"
+#include "osi/include/log.h"
+#ifdef BLUETOOTH_RTK
+#include "bt_hci_bdroid.h"
+#include "bdroid_buildcfg.h"
+extern char bt_hci_device_node[BT_HCI_DEVICE_NODE_MAX_LEN];
+extern bool bluetooth_rtk_h5_flag;
+#endif
+
+extern int check_wifi_chip_type_string(char *type);
+#ifdef BLUETOOTH_RTK
+void bte_load_rtkbt_conf(const char *path)
+{
+    char type[64];
+    assert(path != NULL);
+
+    ALOGI("%s attempt to load rtkbt conf from %s",__func__, path);
+
+    config_t *config = config_new(path);
+    if (!config) {
+      ALOGI("%s file >%s< not found", __func__, path);
+      return;
+    }
+    memset(bt_hci_device_node, 0, sizeof(bt_hci_device_node));
+#if 0
+    strlcpy(bt_hci_device_node, config_get_string(config, CONFIG_DEFAULT_SECTION, "BtDeviceNode","/dev/rtk_btusb"), sizeof(bt_hci_device_node));
+#else
+    check_wifi_chip_type_string(type);
+    if (strstr(type, "AU")!=NULL || strstr(type, "BU")!=NULL) {
+        strlcpy(bt_hci_device_node, "/dev/rtk_btusb", sizeof(bt_hci_device_node));
+    } else if (!strncmp(type, "RTL", 3)) {
+        strlcpy(bt_hci_device_node, "/dev/ttyS0", sizeof(bt_hci_device_node));
+    }
+#endif
+    config_free(config);
+    if(!strcmp(bt_hci_device_node, "/dev/rtk_btusb")){
+        bluetooth_rtk_h5_flag = FALSE;
+        LOG_INFO(LOG_TAG, "%s bluetooth_rtk_h5_flag :%d", __func__,bluetooth_rtk_h5_flag);
+    }else {
+        bluetooth_rtk_h5_flag = TRUE;
+    }
+}
+#endif
+// Parses the specified Device ID configuration file and registers the
+// Device ID records with SDP.
+void bte_load_did_conf(const char *p_path) {
+    assert(p_path != NULL);
+
+    config_t *config = config_new(p_path);
+    if (!config) {
+        LOG_ERROR(LOG_TAG, "%s unable to load DID config '%s'.", __func__, p_path);
+        return;
+    }
+
+    for (int i = 1; i <= BTA_DI_NUM_MAX; ++i) {
+        char section_name[16] = { 0 };
+        snprintf(section_name, sizeof(section_name), "DID%d", i);
+
+        if (!config_has_section(config, section_name)) {
+            LOG_DEBUG(LOG_TAG, "%s no section named %s.", __func__, section_name);
+            break;
+        }
+
+        tBTA_DI_RECORD record;
+        record.vendor = config_get_int(config, section_name, "vendorId", LMP_COMPID_BROADCOM);
+        record.vendor_id_source = config_get_int(config, section_name, "vendorIdSource", DI_VENDOR_ID_SOURCE_BTSIG);
+        record.product = config_get_int(config, section_name, "productId", 0);
+        record.version = config_get_int(config, section_name, "version", 0);
+        record.primary_record = config_get_bool(config, section_name, "primaryRecord", false);
+        strlcpy(record.client_executable_url, config_get_string(config, section_name, "clientExecutableURL", ""), sizeof(record.client_executable_url));
+        strlcpy(record.service_description, config_get_string(config, section_name, "serviceDescription", ""), sizeof(record.service_description));
+        strlcpy(record.documentation_url, config_get_string(config, section_name, "documentationURL", ""), sizeof(record.documentation_url));
+
+        if (record.vendor_id_source != DI_VENDOR_ID_SOURCE_BTSIG &&
+            record.vendor_id_source != DI_VENDOR_ID_SOURCE_USBIF) {
+            LOG_ERROR(LOG_TAG, "%s invalid vendor id source %d; ignoring DID record %d.", __func__, record.vendor_id_source, i);
+            continue;
+        }
+
+        LOG_DEBUG(LOG_TAG, "Device ID record %d : %s", i, (record.primary_record ? "primary" : "not primary"));
+        LOG_DEBUG(LOG_TAG, "  vendorId            = %04x", record.vendor);
+        LOG_DEBUG(LOG_TAG, "  vendorIdSource      = %04x", record.vendor_id_source);
+        LOG_DEBUG(LOG_TAG, "  product             = %04x", record.product);
+        LOG_DEBUG(LOG_TAG, "  version             = %04x", record.version);
+        LOG_DEBUG(LOG_TAG, "  clientExecutableURL = %s", record.client_executable_url);
+        LOG_DEBUG(LOG_TAG, "  serviceDescription  = %s", record.service_description);
+        LOG_DEBUG(LOG_TAG, "  documentationURL    = %s", record.documentation_url);
+
+        uint32_t record_handle;
+        tBTA_STATUS status = BTA_DmSetLocalDiRecord(&record, &record_handle);
+        if (status != BTA_SUCCESS) {
+            LOG_ERROR(LOG_TAG, "%s unable to set device ID record %d: error %d.", __func__, i, status);
+        }
+    }
+
+    config_free(config);
+}
+
diff --git a/rtkbt/code/bt/main/bte_init.c b/rtkbt/code/bt/main/bte_init.c
new file mode 100755
index 0000000..6010728
--- /dev/null
+++ b/rtkbt/code/bt/main/bte_init.c
@@ -0,0 +1,215 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2000-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This module contains the routines that initialize the stack components.
+ *  It must be called before the BTU task is started.
+ *
+ ******************************************************************************/
+
+#include "bt_target.h"
+#include <string.h>
+
+#ifdef BLUETOOTH_RTK
+unsigned int rtkbt_logfilter = 0;
+#endif
+
+#ifndef BTA_INCLUDED
+#define BTA_INCLUDED FALSE
+#endif
+
+/* Include initialization functions definitions */
+#include "port_api.h"
+
+#if (defined(BNEP_INCLUDED) && BNEP_INCLUDED == TRUE)
+#include "bnep_api.h"
+#endif
+
+#include "gap_api.h"
+
+#if (defined(PAN_INCLUDED) && PAN_INCLUDED == TRUE)
+#include "pan_api.h"
+#endif
+
+#include "avrc_api.h"
+
+#if (defined(A2D_INCLUDED) && A2D_INCLUDED == TRUE)
+#include "a2d_api.h"
+#endif
+
+#if (defined(HID_HOST_INCLUDED) && HID_HOST_INCLUDED == TRUE)
+#include "hidh_api.h"
+#endif
+
+#if (defined(MCA_INCLUDED) && MCA_INCLUDED == TRUE)
+#include "mca_api.h"
+#endif
+
+#if (defined(BLE_INCLUDED) && BLE_INCLUDED == TRUE)
+#include "gatt_api.h"
+#if (defined(SMP_INCLUDED) && SMP_INCLUDED == TRUE)
+#include "smp_api.h"
+#endif
+#endif
+
+/***** BTA Modules ******/
+#if BTA_INCLUDED == TRUE && BTA_DYNAMIC_MEMORY == TRUE
+#include "bta_api.h"
+#include "bta_sys.h"
+
+#include "bta_ag_int.h"
+
+#if BTA_HS_INCLUDED == TRUE
+#include "bta_hs_int.h"
+#endif
+
+#include "bta_dm_int.h"
+
+#if BTA_AR_INCLUDED==TRUE
+#include "bta_ar_int.h"
+#endif
+#if BTA_AV_INCLUDED==TRUE
+#include "bta_av_int.h"
+#endif
+
+#if BTA_HH_INCLUDED==TRUE
+#include "bta_hh_int.h"
+#endif
+
+#if BTA_JV_INCLUDED==TRUE
+#include "bta_jv_int.h"
+tBTA_JV_CB *bta_jv_cb_ptr = NULL;
+#endif
+
+#if BTA_HL_INCLUDED == TRUE
+#include "bta_hl_int.h"
+#endif
+
+#if BTA_GATT_INCLUDED == TRUE
+#include "bta_gattc_int.h"
+#include "bta_gatts_int.h"
+#endif
+
+#if BTA_PAN_INCLUDED==TRUE
+#include "bta_pan_int.h"
+#endif
+
+#include "bta_sys_int.h"
+
+/* control block for patch ram downloading */
+#include "bta_prm_int.h"
+
+#endif /* BTA_INCLUDED */
+
+/*****************************************************************************
+**                          F U N C T I O N S                                *
+******************************************************************************/
+
+/*****************************************************************************
+**
+** Function         BTE_InitStack
+**
+** Description      Initialize control block memory for each component.
+**
+**                  Note: The core stack components must be called
+**                      before creating the BTU Task.  The rest of the
+**                      components can be initialized at a later time if desired
+**                      as long as the component's init function is called
+**                      before accessing any of its functions.
+**
+** Returns          void
+**
+******************************************************************************/
+void BTE_InitStack(void)
+{
+/* Initialize the optional stack components */
+    RFCOMM_Init();
+
+/**************************
+** BNEP and its profiles **
+***************************/
+#if (defined(BNEP_INCLUDED) && BNEP_INCLUDED == TRUE)
+    BNEP_Init();
+
+#if (defined(PAN_INCLUDED) && PAN_INCLUDED == TRUE)
+    PAN_Init();
+#endif  /* PAN */
+#endif  /* BNEP Included */
+
+
+/**************************
+** AVDT and its profiles **
+***************************/
+#if (defined(A2D_INCLUDED) && A2D_INCLUDED == TRUE)
+    A2D_Init();
+#endif  /* AADP */
+
+
+    AVRC_Init();
+
+
+/***********
+** Others **
+************/
+    GAP_Init();
+
+#if (defined(HID_HOST_INCLUDED) && HID_HOST_INCLUDED == TRUE)
+    HID_HostInit();
+#endif
+
+#if (defined(MCA_INCLUDED) && MCA_INCLUDED == TRUE)
+    MCA_Init();
+#endif
+
+/****************
+** BTA Modules **
+*****************/
+#if (BTA_INCLUDED == TRUE && BTA_DYNAMIC_MEMORY == TRUE)
+    memset((void*)bta_sys_cb_ptr, 0, sizeof(tBTA_SYS_CB));
+    memset((void*)bta_dm_cb_ptr, 0, sizeof(tBTA_DM_CB));
+    memset((void*)bta_dm_search_cb_ptr, 0, sizeof(tBTA_DM_SEARCH_CB));
+    memset((void*)bta_dm_di_cb_ptr, 0, sizeof(tBTA_DM_DI_CB));
+    memset((void*)bta_prm_cb_ptr, 0, sizeof(tBTA_PRM_CB));
+    memset((void*)bta_ag_cb_ptr, 0, sizeof(tBTA_AG_CB));
+#if BTA_HS_INCLUDED == TRUE
+    memset((void*)bta_hs_cb_ptr, 0, sizeof(tBTA_HS_CB));
+#endif
+#if BTA_AR_INCLUDED==TRUE
+    memset((void *)bta_ar_cb_ptr, 0, sizeof(tBTA_AR_CB));
+#endif
+#if BTA_AV_INCLUDED==TRUE
+    memset((void *)bta_av_cb_ptr, 0, sizeof(tBTA_AV_CB));
+#endif
+#if BTA_HH_INCLUDED==TRUE
+    memset((void *)bta_hh_cb_ptr, 0, sizeof(tBTA_HH_CB));
+#endif
+#if BTA_HL_INCLUDED==TRUE
+    memset((void *)bta_hl_cb_ptr, 0, sizeof(tBTA_HL_CB));
+#endif
+#if BTA_GATT_INCLUDED==TRUE
+    memset((void *)bta_gattc_cb_ptr, 0, sizeof(tBTA_GATTC_CB));
+    memset((void *)bta_gatts_cb_ptr, 0, sizeof(tBTA_GATTS_CB));
+#endif
+#if BTA_PAN_INCLUDED==TRUE
+    memset((void *)bta_pan_cb_ptr, 0, sizeof(tBTA_PAN_CB));
+#endif
+
+#endif /* BTA_INCLUDED == TRUE */
+
+}
diff --git a/rtkbt/code/bt/main/bte_logmsg.c b/rtkbt/code/bt/main/bte_logmsg.c
new file mode 100755
index 0000000..4a59eac
--- /dev/null
+++ b/rtkbt/code/bt/main/bte_logmsg.c
@@ -0,0 +1,254 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2001-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_bte"
+
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdarg.h>
+#include <sys/time.h>
+#include <time.h>
+
+#include "avrc_api.h"
+#include "bta_api.h"
+#include "bte.h"
+#include "btm_api.h"
+#include "btu.h"
+#include "gap_api.h"
+#include "bt_common.h"
+#include "l2c_api.h"
+#include "osi/include/config.h"
+#include "osi/include/log.h"
+#include "osi/include/log.h"
+#include "port_api.h"
+#include "sdp_api.h"
+#include "stack_config.h"
+
+#if (AVDT_INCLUDED==TRUE)
+#include "avdt_api.h"
+#endif
+#if (A2D_INCLUDED==TRUE)
+#include "a2d_api.h"
+#endif
+#if (BNEP_INCLUDED==TRUE)
+#include "bnep_api.h"
+#endif
+#if (PAN_INCLUDED==TRUE)
+#include "pan_api.h"
+#endif
+#if (BLE_INCLUDED==TRUE)
+#include "gatt_api.h"
+#include "smp_api.h"
+#endif
+
+#ifndef DEFAULT_CONF_TRACE_LEVEL
+#define DEFAULT_CONF_TRACE_LEVEL BT_TRACE_LEVEL_WARNING
+#endif
+
+#ifndef BTE_LOG_BUF_SIZE
+#define BTE_LOG_BUF_SIZE  1024
+#endif
+
+#define BTE_LOG_MAX_SIZE  (BTE_LOG_BUF_SIZE - 12)
+
+#define MSG_BUFFER_OFFSET 0
+
+/* LayerIDs for BTA, currently everything maps onto appl_trace_level */
+static const char * const bt_layer_tags[] = {
+  "bt_btif",
+  "bt_usb",
+  "bt_serial",
+  "bt_socket",
+  "bt_rs232",
+  "bt_lc",
+  "bt_lm",
+  "bt_hci",
+  "bt_l2cap",
+  "bt_rfcomm",
+  "bt_sdp",
+  "bt_tcs",
+  "bt_obex",
+  "bt_btm",
+  "bt_gap",
+  "UNUSED",
+  "UNUSED",
+  "bt_icp",
+  "bt_hsp2",
+  "bt_spp",
+  "bt_ctp",
+  "bt_bpp",
+  "bt_hcrp",
+  "bt_ftp",
+  "bt_opp",
+  "bt_btu",
+  "bt_gki",                             /* OBSOLETED */
+  "bt_bnep",
+  "bt_pan",
+  "bt_hfp",
+  "bt_hid",
+  "bt_bip",
+  "bt_avp",
+  "bt_a2d",
+  "bt_sap",
+  "bt_amp",
+  "bt_mca",
+  "bt_att",
+  "bt_smp",
+  "bt_nfc",
+  "bt_nci",
+  "bt_idep",
+  "bt_ndep",
+  "bt_llcp",
+  "bt_rw",
+  "bt_ce",
+  "bt_snep",
+  "bt_ndef",
+  "bt_nfa",
+};
+static uint8_t BTAPP_SetTraceLevel(uint8_t new_level);
+static uint8_t BTIF_SetTraceLevel(uint8_t new_level);
+static uint8_t BTU_SetTraceLevel(uint8_t new_level);
+
+/* make sure list is order by increasing layer id!!! */
+static tBTTRC_FUNC_MAP bttrc_set_level_map[] = {
+  {BTTRC_ID_STK_BTU, BTTRC_ID_STK_HCI, BTU_SetTraceLevel, "TRC_HCI", DEFAULT_CONF_TRACE_LEVEL},
+  {BTTRC_ID_STK_L2CAP, BTTRC_ID_STK_L2CAP, L2CA_SetTraceLevel, "TRC_L2CAP", DEFAULT_CONF_TRACE_LEVEL},
+  {BTTRC_ID_STK_RFCOMM, BTTRC_ID_STK_RFCOMM_DATA, PORT_SetTraceLevel, "TRC_RFCOMM", DEFAULT_CONF_TRACE_LEVEL},
+#if (AVDT_INCLUDED==TRUE)
+  {BTTRC_ID_STK_AVDT, BTTRC_ID_STK_AVDT, AVDT_SetTraceLevel, "TRC_AVDT", DEFAULT_CONF_TRACE_LEVEL},
+#endif
+  {BTTRC_ID_STK_AVRC, BTTRC_ID_STK_AVRC, AVRC_SetTraceLevel, "TRC_AVRC", DEFAULT_CONF_TRACE_LEVEL},
+#if (AVDT_INCLUDED==TRUE)
+  //{BTTRC_ID_AVDT_SCB, BTTRC_ID_AVDT_CCB, NULL, "TRC_AVDT_SCB", DEFAULT_CONF_TRACE_LEVEL},
+#endif
+#if (A2D_INCLUDED==TRUE)
+  {BTTRC_ID_STK_A2D, BTTRC_ID_STK_A2D, A2D_SetTraceLevel, "TRC_A2D", DEFAULT_CONF_TRACE_LEVEL},
+#endif
+#if (BNEP_INCLUDED==TRUE)
+  {BTTRC_ID_STK_BNEP, BTTRC_ID_STK_BNEP, BNEP_SetTraceLevel, "TRC_BNEP", DEFAULT_CONF_TRACE_LEVEL},
+#endif
+  {BTTRC_ID_STK_BTM_ACL, BTTRC_ID_STK_BTM_SEC, BTM_SetTraceLevel, "TRC_BTM", DEFAULT_CONF_TRACE_LEVEL},
+  {BTTRC_ID_STK_GAP, BTTRC_ID_STK_GAP, GAP_SetTraceLevel, "TRC_GAP", DEFAULT_CONF_TRACE_LEVEL},
+#if (PAN_INCLUDED==TRUE)
+  {BTTRC_ID_STK_PAN, BTTRC_ID_STK_PAN, PAN_SetTraceLevel, "TRC_PAN", DEFAULT_CONF_TRACE_LEVEL},
+#endif
+  {BTTRC_ID_STK_SDP, BTTRC_ID_STK_SDP, SDP_SetTraceLevel, "TRC_SDP", DEFAULT_CONF_TRACE_LEVEL},
+#if (BLE_INCLUDED==TRUE)
+  {BTTRC_ID_STK_GATT, BTTRC_ID_STK_GATT, GATT_SetTraceLevel, "TRC_GATT", DEFAULT_CONF_TRACE_LEVEL},
+  {BTTRC_ID_STK_SMP, BTTRC_ID_STK_SMP, SMP_SetTraceLevel, "TRC_SMP", DEFAULT_CONF_TRACE_LEVEL},
+#endif
+
+  /* LayerIDs for BTA, currently everything maps onto appl_trace_level.
+   */
+  {BTTRC_ID_BTA_ACC, BTTRC_ID_BTAPP, BTAPP_SetTraceLevel, "TRC_BTAPP", DEFAULT_CONF_TRACE_LEVEL},
+  {BTTRC_ID_BTA_ACC, BTTRC_ID_BTAPP, BTIF_SetTraceLevel, "TRC_BTIF", DEFAULT_CONF_TRACE_LEVEL},
+
+  {0, 0, NULL, NULL, DEFAULT_CONF_TRACE_LEVEL}
+};
+
+void LogMsg(uint32_t trace_set_mask, const char *fmt_str, ...) {
+  static char buffer[BTE_LOG_BUF_SIZE];
+  int trace_layer = TRACE_GET_LAYER(trace_set_mask);
+  if (trace_layer >= TRACE_LAYER_MAX_NUM)
+    trace_layer = 0;
+
+  va_list ap;
+  va_start(ap, fmt_str);
+  vsnprintf(&buffer[MSG_BUFFER_OFFSET], BTE_LOG_MAX_SIZE, fmt_str, ap);
+  va_end(ap);
+
+  switch ( TRACE_GET_TYPE(trace_set_mask) ) {
+    case TRACE_TYPE_ERROR:
+      LOG_ERROR(bt_layer_tags[trace_layer], "%s", buffer);
+      break;
+    case TRACE_TYPE_WARNING:
+      LOG_WARN(bt_layer_tags[trace_layer], "%s", buffer);
+      break;
+    case TRACE_TYPE_API:
+    case TRACE_TYPE_EVENT:
+      LOG_INFO(bt_layer_tags[trace_layer], "%s", buffer);
+      break;
+    case TRACE_TYPE_DEBUG:
+      LOG_DEBUG(bt_layer_tags[trace_layer], "%s", buffer);
+      break;
+    default:
+      LOG_ERROR(bt_layer_tags[trace_layer], "%s", buffer);      /* we should never get this */
+      break;
+  }
+}
+
+/* this function should go into BTAPP_DM for example */
+static uint8_t BTAPP_SetTraceLevel(uint8_t new_level) {
+  if (new_level != 0xFF)
+    appl_trace_level = new_level;
+
+  return appl_trace_level;
+}
+
+static uint8_t BTIF_SetTraceLevel(uint8_t new_level) {
+  if (new_level != 0xFF)
+    btif_trace_level = new_level;
+
+  return btif_trace_level;
+}
+
+static uint8_t BTU_SetTraceLevel(uint8_t new_level) {
+  if (new_level != 0xFF)
+    btu_trace_level = new_level;
+
+  return btu_trace_level;
+}
+
+static void load_levels_from_config(const config_t *config) {
+  assert(config != NULL);
+
+  for (tBTTRC_FUNC_MAP *functions = &bttrc_set_level_map[0]; functions->trc_name; ++functions) {
+    LOG_INFO(LOG_TAG, "BTE_InitTraceLevels -- %s", functions->trc_name);
+    int value = config_get_int(config, CONFIG_DEFAULT_SECTION, functions->trc_name, -1);
+    if (value != -1)
+      functions->trace_level = value;
+
+    if (functions->p_f)
+      functions->p_f(functions->trace_level);
+  }
+}
+
+static future_t *init(void) {
+  const stack_config_t *stack_config = stack_config_get_interface();
+  if (!stack_config->get_trace_config_enabled()) {
+    LOG_INFO(LOG_TAG, "using compile default trace settings");
+    return NULL;
+  }
+
+  load_levels_from_config(stack_config->get_all());
+  return NULL;
+}
+
+EXPORT_SYMBOL const module_t bte_logmsg_module = {
+  .name = BTE_LOGMSG_MODULE,
+  .init = init,
+  .start_up = NULL,
+  .shut_down = NULL,
+  .clean_up = NULL,
+  .dependencies = {
+    STACK_CONFIG_MODULE,
+    NULL
+  }
+};
diff --git a/rtkbt/code/bt/main/bte_main.c b/rtkbt/code/bt/main/bte_main.c
new file mode 100755
index 0000000..99b0ec2
--- /dev/null
+++ b/rtkbt/code/bt/main/bte_main.c
@@ -0,0 +1,306 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  Filename:      bte_main.c
+ *
+ *  Description:   Contains BTE core stack initialization and shutdown code
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_main"
+
+#include <assert.h>
+#include <fcntl.h>
+#include <pthread.h>
+#include <signal.h>
+#include <stdlib.h>
+#include <time.h>
+
+#include <hardware/bluetooth.h>
+
+#include "bt_hci_bdroid.h"
+#include "bt_utils.h"
+#include "bta_api.h"
+#include "btcore/include/module.h"
+#include "bte.h"
+#include "btif_common.h"
+#include "btsnoop.h"
+#include "btu.h"
+#include "bt_common.h"
+#include "device/include/interop.h"
+#include "hci_layer.h"
+#include "osi/include/alarm.h"
+#include "osi/include/fixed_queue.h"
+#include "osi/include/future.h"
+#include "osi/include/hash_functions.h"
+#include "osi/include/hash_map.h"
+#include "osi/include/log.h"
+#include "osi/include/osi.h"
+#include "osi/include/thread.h"
+#include "stack_config.h"
+
+/*******************************************************************************
+**  Constants & Macros
+*******************************************************************************/
+
+/* Run-time configuration file for BLE*/
+#ifndef BTE_BLE_STACK_CONF_FILE
+// TODO(armansito): Find a better way than searching by a hardcoded path.
+#if defined(OS_GENERIC)
+#define BTE_BLE_STACK_CONF_FILE "ble_stack.conf"
+#else  // !defined(OS_GENERIC)
+#define BTE_BLE_STACK_CONF_FILE "/etc/bluetooth/ble_stack.conf"
+#endif  // defined(OS_GENERIC)
+#endif  // BT_BLE_STACK_CONF_FILE
+#ifdef BLUETOOTH_RTK
+#ifndef BTE_RTK_CONF_FILE
+#define BTE_RTK_CONF_FILE "/etc/bluetooth/rtkbt.conf"
+#endif
+#endif
+/******************************************************************************
+**  Variables
+******************************************************************************/
+
+/*******************************************************************************
+**  Static variables
+*******************************************************************************/
+static const hci_t *hci;
+
+/*******************************************************************************
+**  Static functions
+*******************************************************************************/
+
+/*******************************************************************************
+**  Externs
+*******************************************************************************/
+fixed_queue_t *btu_hci_msg_queue;
+
+#ifdef BLUETOOTH_RTK
+extern void bte_load_rtkbt_conf(const char *p_path);
+extern unsigned int rtkbt_logfilter;
+extern unsigned char h5_log_enable;
+static const stack_config_t *stack_config;
+#endif
+
+#ifdef BLUETOOT_RTK_BQB
+extern int cert_conf(const char *p_conf_value);
+#endif
+
+#ifdef BLUETOOTH_RTK_COEX
+extern unsigned char coex_log_enable;
+#endif
+
+/******************************************************************************
+**
+** Function         bte_main_boot_entry
+**
+** Description      BTE MAIN API - Entry point for BTE chip/stack initialization
+**
+** Returns          None
+**
+******************************************************************************/
+void bte_main_boot_entry(void)
+{
+    module_init(get_module(INTEROP_MODULE));
+
+#ifdef BLUETOOTH_RTK
+    bte_load_rtkbt_conf(BTE_RTK_CONF_FILE);
+#endif
+
+    hci = hci_layer_get_interface();
+    if (!hci)
+      LOG_ERROR(LOG_TAG, "%s could not get hci layer interface.", __func__);
+
+    btu_hci_msg_queue = fixed_queue_new(SIZE_MAX);
+    if (btu_hci_msg_queue == NULL) {
+      LOG_ERROR(LOG_TAG, "%s unable to allocate hci message queue.", __func__);
+      return;
+    }
+
+    data_dispatcher_register_default(hci->event_dispatcher, btu_hci_msg_queue);
+    hci->set_data_queue(btu_hci_msg_queue);
+
+    module_init(get_module(STACK_CONFIG_MODULE));
+
+#ifdef BLUETOOTH_RTK
+    stack_config = stack_config_get_interface();
+    rtkbt_logfilter = stack_config->get_btsnoop_heartbeat_log();
+    h5_log_enable = (uint8_t)stack_config->get_btsnoop_h5enable_log();
+#endif
+#ifdef BLUETOOTH_RTK_BQB
+    cert_conf(stack_config->get_btsnoop_bqb_log());
+#endif
+#ifdef BLUETOOTH_RTK_COEX
+    coex_log_enable = (uint8_t)stack_config->get_btsnoop_coexenable_log();
+#endif
+
+
+}
+
+/******************************************************************************
+**
+** Function         bte_main_cleanup
+**
+** Description      BTE MAIN API - Cleanup code for BTE chip/stack
+**
+** Returns          None
+**
+******************************************************************************/
+void bte_main_cleanup()
+{
+    data_dispatcher_register_default(hci_layer_get_interface()->event_dispatcher, NULL);
+    hci->set_data_queue(NULL);
+    fixed_queue_free(btu_hci_msg_queue, NULL);
+
+    btu_hci_msg_queue = NULL;
+
+    module_clean_up(get_module(STACK_CONFIG_MODULE));
+
+    module_clean_up(get_module(INTEROP_MODULE));
+}
+
+/******************************************************************************
+**
+** Function         bte_main_enable
+**
+** Description      BTE MAIN API - Creates all the BTE tasks. Should be called
+**                  part of the Bluetooth stack enable sequence
+**
+** Returns          None
+**
+******************************************************************************/
+void bte_main_enable()
+{
+    APPL_TRACE_DEBUG("%s", __FUNCTION__);
+
+    module_start_up(get_module(BTSNOOP_MODULE));
+    module_start_up(get_module(HCI_MODULE));
+
+    BTU_StartUp();
+}
+
+/******************************************************************************
+**
+** Function         bte_main_disable
+**
+** Description      BTE MAIN API - Destroys all the BTE tasks. Should be called
+**                  part of the Bluetooth stack disable sequence
+**
+** Returns          None
+**
+******************************************************************************/
+void bte_main_disable(void)
+{
+    APPL_TRACE_DEBUG("%s", __FUNCTION__);
+
+    module_shut_down(get_module(HCI_MODULE));
+    module_shut_down(get_module(BTSNOOP_MODULE));
+
+    BTU_ShutDown();
+}
+
+/******************************************************************************
+**
+** Function         bte_main_postload_cfg
+**
+** Description      BTE MAIN API - Stack postload configuration
+**
+** Returns          None
+**
+******************************************************************************/
+void bte_main_postload_cfg(void)
+{
+    hci->do_postload();
+}
+
+#if (defined(HCILP_INCLUDED) && HCILP_INCLUDED == TRUE)
+/******************************************************************************
+**
+** Function         bte_main_enable_lpm
+**
+** Description      BTE MAIN API - Enable/Disable low power mode operation
+**
+** Returns          None
+**
+******************************************************************************/
+void bte_main_enable_lpm(BOOLEAN enable)
+{
+    hci->send_low_power_command(enable ? LPM_ENABLE : LPM_DISABLE);
+}
+
+/******************************************************************************
+**
+** Function         bte_main_lpm_allow_bt_device_sleep
+**
+** Description      BTE MAIN API - Allow the BT controller to go to sleep
+**
+** Returns          None
+**
+******************************************************************************/
+void bte_main_lpm_allow_bt_device_sleep()
+{
+    hci->send_low_power_command(LPM_WAKE_DEASSERT);
+}
+
+/******************************************************************************
+**
+** Function         bte_main_lpm_wake_bt_device
+**
+** Description      BTE MAIN API - Wake BT controller up if it is in sleep mode
+**
+** Returns          None
+**
+******************************************************************************/
+void bte_main_lpm_wake_bt_device()
+{
+    hci->send_low_power_command(LPM_WAKE_ASSERT);
+}
+#endif  // HCILP_INCLUDED
+
+/******************************************************************************
+**
+** Function         bte_main_hci_send
+**
+** Description      BTE MAIN API - This function is called by the upper stack to
+**                  send an HCI message. The function displays a protocol trace
+**                  message (if enabled), and then calls the 'transmit' function
+**                  associated with the currently selected HCI transport
+**
+** Returns          None
+**
+******************************************************************************/
+void bte_main_hci_send (BT_HDR *p_msg, UINT16 event)
+{
+    UINT16 sub_event = event & BT_SUB_EVT_MASK;  /* local controller ID */
+
+    p_msg->event = event;
+
+
+    if((sub_event == LOCAL_BR_EDR_CONTROLLER_ID) || \
+       (sub_event == LOCAL_BLE_CONTROLLER_ID))
+    {
+        hci->transmit_downward(event, p_msg);
+    }
+    else
+    {
+        APPL_TRACE_ERROR("Invalid Controller ID. Discarding message.");
+        osi_free(p_msg);
+    }
+}
diff --git a/rtkbt/code/bt/main/stack_config.c b/rtkbt/code/bt/main/stack_config.c
new file mode 100755
index 0000000..a76cf3a
--- /dev/null
+++ b/rtkbt/code/bt/main/stack_config.c
@@ -0,0 +1,168 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_stack_config"
+
+#include "stack_config.h"
+
+#include <assert.h>
+
+#include "osi/include/future.h"
+#include "osi/include/log.h"
+
+const char *BTSNOOP_LOG_PATH_KEY = "BtSnoopFileName";
+const char *BTSNOOP_TURNED_ON_KEY = "BtSnoopLogOutput";
+const char *BTSNOOP_SHOULD_SAVE_LAST_KEY = "BtSnoopSaveLog";
+const char *TRACE_CONFIG_ENABLED_KEY = "TraceConf";
+const char *PTS_SECURE_ONLY_MODE = "PTS_SecurePairOnly";
+const char *PTS_LE_CONN_UPDATED_DISABLED = "PTS_DisableConnUpdates";
+const char *PTS_DISABLE_SDP_LE_PAIR = "PTS_DisableSDPOnLEPair";
+const char *PTS_SMP_PAIRING_OPTIONS_KEY = "PTS_SmpOptions";
+const char *PTS_SMP_FAILURE_CASE_KEY = "PTS_SmpFailureCase";
+#ifdef BLUETOOTH_RTK
+const char *BTSNOOP_HEARTBEAT_LOG = "RtkbtLogFilter";
+const char *BTSNOOP_BQB_LOG = "CertConf";
+const char *BTSNOOP_H5_ENABLE_LOG = "H5LogOutput";
+#endif
+
+#ifdef BLUETOOTH_RTK_COEX
+const char *BTSNOOP_COEX_ENABLE_LOG = "BtCoexLogOutput";
+#endif
+static config_t *config;
+
+// Module lifecycle functions
+
+static future_t *init() {
+// TODO(armansito): Find a better way than searching by a hardcoded path.
+#if defined(OS_GENERIC)
+  const char *path = "bt_stack.conf";
+#else  // !defined(OS_GENERIC)
+  const char *path = "/etc/bluetooth/bt_stack.conf";
+#endif  // defined(OS_GENERIC)
+  assert(path != NULL);
+
+  LOG_INFO(LOG_TAG, "%s attempt to load stack conf from %s", __func__, path);
+
+  config = config_new(path);
+  if (!config) {
+    LOG_INFO(LOG_TAG, "%s file >%s< not found", __func__, path);
+    return future_new_immediate(FUTURE_FAIL);
+  }
+
+  return future_new_immediate(FUTURE_SUCCESS);
+}
+
+static future_t *clean_up() {
+  config_free(config);
+  config = NULL;
+  return future_new_immediate(FUTURE_SUCCESS);
+}
+
+EXPORT_SYMBOL const module_t stack_config_module = {
+  .name = STACK_CONFIG_MODULE,
+  .init = init,
+  .start_up = NULL,
+  .shut_down = NULL,
+  .clean_up = clean_up,
+  .dependencies = {
+    NULL
+  }
+};
+
+// Interface functions
+
+static const char *get_btsnoop_log_path(void) {
+  return config_get_string(config, CONFIG_DEFAULT_SECTION, BTSNOOP_LOG_PATH_KEY, "/data/misc/bluedroid/btsnoop_hci.log");
+}
+
+static bool get_btsnoop_turned_on(void) {
+  return config_get_bool(config, CONFIG_DEFAULT_SECTION, BTSNOOP_TURNED_ON_KEY, false);
+}
+
+static bool get_btsnoop_should_save_last(void) {
+  return config_get_bool(config, CONFIG_DEFAULT_SECTION, BTSNOOP_SHOULD_SAVE_LAST_KEY, false);
+}
+
+static bool get_trace_config_enabled(void) {
+  return config_get_bool(config, CONFIG_DEFAULT_SECTION, TRACE_CONFIG_ENABLED_KEY, false);
+}
+#ifdef BLUETOOTH_RTK
+static int get_btsnoop_heartbeat_log(void) {
+  return config_get_int(config, CONFIG_DEFAULT_SECTION, BTSNOOP_HEARTBEAT_LOG, 1);
+}
+static const char* get_btsnoop_bqb_log(void) {
+  return config_get_string(config, CONFIG_DEFAULT_SECTION, BTSNOOP_BQB_LOG, "0");
+}
+
+static int get_btsnoop_h5enable_log(void) {
+     return config_get_int(config, CONFIG_DEFAULT_SECTION, BTSNOOP_H5_ENABLE_LOG, 0);
+}
+#endif
+
+#ifdef BLUETOOTH_RTK_COEX
+static int get_btsnoop_coexenable_log(void) {
+     return config_get_int(config, CONFIG_DEFAULT_SECTION, BTSNOOP_COEX_ENABLE_LOG, 0);
+}
+#endif
+
+static bool get_pts_secure_only_mode(void) {
+    return config_get_bool(config, CONFIG_DEFAULT_SECTION, PTS_SECURE_ONLY_MODE, false);
+}
+
+static bool get_pts_conn_updates_disabled(void) {
+  return config_get_bool(config, CONFIG_DEFAULT_SECTION, PTS_LE_CONN_UPDATED_DISABLED, false);
+}
+
+static bool get_pts_crosskey_sdp_disable(void) {
+  return config_get_bool(config, CONFIG_DEFAULT_SECTION, PTS_DISABLE_SDP_LE_PAIR, false);
+}
+
+static const char *get_pts_smp_options(void) {
+  return config_get_string(config, CONFIG_DEFAULT_SECTION, PTS_SMP_PAIRING_OPTIONS_KEY, NULL);
+}
+
+static int get_pts_smp_failure_case(void) {
+  return config_get_int(config, CONFIG_DEFAULT_SECTION, PTS_SMP_FAILURE_CASE_KEY, 0);
+}
+
+static config_t *get_all(void) {
+  return config;
+}
+
+const stack_config_t interface = {
+  get_btsnoop_log_path,
+  get_btsnoop_turned_on,
+  get_btsnoop_should_save_last,
+  get_trace_config_enabled,
+  #ifdef BLUETOOTH_RTK
+  get_btsnoop_heartbeat_log,
+  get_btsnoop_bqb_log,
+  get_btsnoop_h5enable_log,
+  get_btsnoop_coexenable_log,
+#endif
+  get_pts_secure_only_mode,
+  get_pts_conn_updates_disabled,
+  get_pts_crosskey_sdp_disable,
+  get_pts_smp_options,
+  get_pts_smp_failure_case,
+  get_all
+};
+
+const stack_config_t *stack_config_get_interface() {
+  return &interface;
+}
diff --git a/rtkbt/code/bt/osi/Android.mk b/rtkbt/code/bt/osi/Android.mk
new file mode 100755
index 0000000..cf3477c
--- /dev/null
+++ b/rtkbt/code/bt/osi/Android.mk
@@ -0,0 +1,207 @@
+ ##############################################################################
+ #
+ #  Copyright (C) 2014 Google, Inc.
+ #
+ #  Licensed under the Apache License, Version 2.0 (the "License");
+ #  you may not use this file except in compliance with the License.
+ #  You may obtain a copy of the License at:
+ #
+ #  http://www.apache.org/licenses/LICENSE-2.0
+ #
+ #  Unless required by applicable law or agreed to in writing, software
+ #  distributed under the License is distributed on an "AS IS" BASIS,
+ #  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ #  See the License for the specific language governing permissions and
+ #  limitations under the License.
+ #
+ ##############################################################################
+
+LOCAL_PATH := $(call my-dir)
+
+# Common variables
+# ========================================================
+
+# TODO(mcchou): Remove socket_utils sources after platform specific
+# dependencies are abstracted.
+btosiCommonSrc := \
+    ./src/alarm.c \
+    ./src/allocation_tracker.c \
+    ./src/allocator.c \
+    ./src/array.c \
+    ./src/buffer.c \
+    ./src/compat.c \
+    ./src/config.c \
+    ./src/data_dispatcher.c \
+    ./src/eager_reader.c \
+    ./src/fixed_queue.c \
+    ./src/future.c \
+    ./src/hash_functions.c \
+    ./src/hash_map.c \
+    ./src/hash_map_utils.c \
+    ./src/list.c \
+    ./src/metrics.cpp \
+    ./src/mutex.c \
+    ./src/osi.c \
+    ./src/properties.c \
+    ./src/reactor.c \
+    ./src/ringbuffer.c \
+    ./src/semaphore.c \
+    ./src/socket.c \
+    ./src/socket_utils/socket_local_client.c \
+    ./src/socket_utils/socket_local_server.c \
+    ./src/thread.c \
+    ./src/time.c \
+    ./src/wakelock.c
+
+btosiCommonTestSrc := \
+    ./test/AlarmTestHarness.cpp \
+    ./test/AllocationTestHarness.cpp \
+    ./test/alarm_test.cpp \
+    ./test/allocation_tracker_test.cpp \
+    ./test/allocator_test.cpp \
+    ./test/array_test.cpp \
+    ./test/config_test.cpp \
+    ./test/data_dispatcher_test.cpp \
+    ./test/eager_reader_test.cpp \
+    ./test/fixed_queue_test.cpp \
+    ./test/future_test.cpp \
+    ./test/hash_map_test.cpp \
+    ./test/hash_map_utils_test.cpp \
+    ./test/list_test.cpp \
+    ./test/properties_test.cpp \
+    ./test/rand_test.cpp \
+    ./test/reactor_test.cpp \
+    ./test/ringbuffer_test.cpp \
+    ./test/semaphore_test.cpp \
+    ./test/thread_test.cpp \
+    ./test/time_test.cpp
+
+btosiCommonIncludes := \
+    $(LOCAL_PATH)/.. \
+    $(LOCAL_PATH)/../utils/include \
+    $(LOCAL_PATH)/../stack/include \
+    $(bluetooth_C_INCLUDES)
+
+# Bluetooth Protobuf static library for target
+# ========================================================
+include $(CLEAR_VARS)
+LOCAL_MODULE := libbt-protos-rtk
+LOCAL_MODULE_CLASS := STATIC_LIBRARIES
+generated_sources_dir := $(call local-generated-sources-dir)
+
+ifeq ($(BOARD_HAVE_BLUETOOTH_RTK), true)
+bluetooth_pb_h_dir := $(LOCAL_PATH)/../
+LOCAL_EXPORT_C_INCLUDE_DIRS += \
+    $(generated_sources_dir)/proto/$(bluetooth_pb_h_dir)
+else
+LOCAL_EXPORT_C_INCLUDE_DIRS += \
+    $(generated_sources_dir)/proto/system/bt
+endif
+LOCAL_SRC_FILES := $(call all-proto-files-under,src/protos/)
+
+LOCAL_CFLAGS += $(bluetooth_CFLAGS)
+LOCAL_CONLYFLAGS += $(bluetooth_CONLYFLAGS)
+LOCAL_CPPFLAGS += $(bluetooth_CPPFLAGS)
+
+include $(BUILD_STATIC_LIBRARY)
+
+## Bluetooth Protobuf static library for host
+## ========================================================
+#include $(CLEAR_VARS)
+#LOCAL_MODULE := libbt-protos
+#LOCAL_MODULE_CLASS := STATIC_LIBRARIES
+#LOCAL_IS_HOST_MODULE := true
+#generated_sources_dir := $(call local-generated-sources-dir)
+#ifeq ($(BOARD_HAVE_BLUETOOTH_RTK), true)
+#bluetooth_pb_h_dir := $(LOCAL_PATH)/../
+#LOCAL_EXPORT_C_INCLUDE_DIRS += \
+#    $(generated_sources_dir)/proto/$(bluetooth_pb_h_dir)
+#else
+#LOCAL_EXPORT_C_INCLUDE_DIRS += \
+#    $(generated_sources_dir)/proto/system/bt
+#endif
+#LOCAL_SRC_FILES := $(call all-proto-files-under,src/protos/)
+#
+#LOCAL_CFLAGS += $(bluetooth_CFLAGS)
+#LOCAL_CONLYFLAGS += $(bluetooth_CONLYFLAGS)
+#LOCAL_CPPFLAGS += $(bluetooth_CPPFLAGS)
+#
+#include $(BUILD_HOST_STATIC_LIBRARY)
+
+# libosi static library for target
+# ========================================================
+include $(CLEAR_VARS)
+LOCAL_C_INCLUDES := $(btosiCommonIncludes)
+LOCAL_SRC_FILES := $(btosiCommonSrc)
+LOCAL_MODULE := libosi-rtk
+LOCAL_MODULE_TAGS := optional
+LOCAL_SHARED_LIBRARIES := libc liblog libchrome
+LOCAL_STATIC_LIBRARIES := libbt-protos-rtk
+LOCAL_MODULE_CLASS := STATIC_LIBRARIES
+
+LOCAL_CFLAGS += $(bluetooth_CFLAGS)
+LOCAL_CONLYFLAGS += $(bluetooth_CONLYFLAGS)
+LOCAL_CPPFLAGS += $(bluetooth_CPPFLAGS)
+
+include $(BUILD_STATIC_LIBRARY)
+
+## libosi static library for host
+## ========================================================
+#ifeq ($(HOST_OS),linux)
+#include $(CLEAR_VARS)
+#LOCAL_C_INCLUDES := $(btosiCommonIncludes)
+#LOCAL_SRC_FILES := $(btosiCommonSrc)
+#LOCAL_MODULE := libosi-host
+#LOCAL_MODULE_TAGS := optional
+#LOCAL_SHARED_LIBRARIES := liblog libchrome
+#LOCAL_STATIC_LIBRARIES := libbt-protos
+#LOCAL_MODULE_CLASS := STATIC_LIBRARIES
+#
+## TODO(armansito): Setting _GNU_SOURCE isn't very platform-independent but
+## should be compatible for a Linux host OS. We should figure out what to do for
+## a non-Linux host OS.
+#LOCAL_CFLAGS += $(bluetooth_CFLAGS) -D_GNU_SOURCE -DOS_GENERIC
+#LOCAL_CONLYFLAGS += $(bluetooth_CONLYFLAGS)
+#LOCAL_CPPFLAGS += $(bluetooth_CPPFLAGS)
+#
+#include $(BUILD_HOST_STATIC_LIBRARY)
+#endif
+
+##
+## Note: It's good to get the tests compiled both for the host and the target so
+## we get to test with both Bionic libc and glibc
+##
+## libosi unit tests for target
+## ========================================================
+#include $(CLEAR_VARS)
+#LOCAL_C_INCLUDES := $(btosiCommonIncludes)
+#LOCAL_SRC_FILES := $(btosiCommonTestSrc)
+#LOCAL_MODULE := net_test_osi
+#LOCAL_MODULE_TAGS := tests
+#LOCAL_SHARED_LIBRARIES := libc liblog libprotobuf-cpp-full libchrome libcutils
+#LOCAL_STATIC_LIBRARIES := libosi libbt-protos
+#
+#LOCAL_CFLAGS += $(bluetooth_CFLAGS)
+#LOCAL_CONLYFLAGS += $(bluetooth_CONLYFLAGS)
+#LOCAL_CPPFLAGS += $(bluetooth_CPPFLAGS)
+#
+#include $(BUILD_NATIVE_TEST)
+#
+## libosi unit tests for host
+## ========================================================
+#ifeq ($(HOST_OS),linux)
+#include $(CLEAR_VARS)
+#LOCAL_C_INCLUDES := $(btosiCommonIncludes)
+#LOCAL_SRC_FILES := $(btosiCommonTestSrc)
+#LOCAL_LDLIBS := -lrt -lpthread
+#LOCAL_MODULE := net_test_osi
+#LOCAL_MODULE_TAGS := tests
+#LOCAL_SHARED_LIBRARIES := liblog libprotobuf-cpp-full libchrome
+#LOCAL_STATIC_LIBRARIES := libosi-host libbt-protos
+#
+#LOCAL_CFLAGS += $(bluetooth_CFLAGS) -DOS_GENERIC
+#LOCAL_CONLYFLAGS += $(bluetooth_CONLYFLAGS)
+#LOCAL_CPPFLAGS += $(bluetooth_CPPFLAGS)
+#
+#include $(BUILD_HOST_NATIVE_TEST)
+#endif
diff --git a/rtkbt/code/bt/osi/BUILD.gn b/rtkbt/code/bt/osi/BUILD.gn
new file mode 100755
index 0000000..ed91fb1
--- /dev/null
+++ b/rtkbt/code/bt/osi/BUILD.gn
@@ -0,0 +1,97 @@
+#
+#  Copyright (C) 2015 Google, Inc.
+#
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at:
+#
+#  http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+#
+
+static_library("osi") {
+  sources = [
+    "src/alarm.c",
+    "src/allocation_tracker.c",
+    "src/allocator.c",
+    "src/array.c",
+    "src/buffer.c",
+    "src/compat.c",
+    "src/config.c",
+    "src/data_dispatcher.c",
+    "src/eager_reader.c",
+    "src/fixed_queue.c",
+    "src/future.c",
+    "src/hash_functions.c",
+    "src/hash_map.c",
+    "src/hash_map_utils.c",
+    "src/list.c",
+    "src/metrics_linux.cpp",
+    "src/mutex.c",
+    "src/osi.c",
+    "src/properties.c",
+    "src/reactor.c",
+    "src/ringbuffer.c",
+    "src/semaphore.c",
+    "src/socket.c",
+
+    # TODO(mcchou): Remove these sources after platform specific
+    # dependencies are abstracted.
+    "src/socket_utils/socket_local_client.c",
+    "src/socket_utils/socket_local_server.c",
+    "src/thread.c",
+    "src/time.c",
+    "src/wakelock.c",
+  ]
+
+  include_dirs = [
+    "//",
+    "//utils/include",
+    "//stack/include",
+  ]
+}
+
+executable("net_test_osi") {
+  testonly = true
+  sources = [
+    "test/AlarmTestHarness.cpp",
+    "test/AllocationTestHarness.cpp",
+    "test/alarm_test.cpp",
+    "test/allocation_tracker_test.cpp",
+    "test/allocator_test.cpp",
+    "test/array_test.cpp",
+    "test/config_test.cpp",
+    "test/data_dispatcher_test.cpp",
+    "test/eager_reader_test.cpp",
+    "test/future_test.cpp",
+    "test/hash_map_test.cpp",
+    "test/hash_map_utils_test.cpp",
+    "test/list_test.cpp",
+    "test/properties_test.cpp",
+    "test/rand_test.cpp",
+    "test/reactor_test.cpp",
+    "test/ringbuffer_test.cpp",
+    "test/thread_test.cpp",
+    "test/time_test.cpp",
+  ]
+
+  include_dirs = [
+    "//",
+    "//osi/test",
+  ]
+
+  deps = [
+    "//osi",
+    "//third_party/googletest:gtest_main",
+  ]
+
+  libs = [
+    "-lpthread",
+    "-lrt",
+  ]
+}
diff --git a/rtkbt/code/bt/osi/include/alarm.h b/rtkbt/code/bt/osi/include/alarm.h
new file mode 100755
index 0000000..a9934fd
--- /dev/null
+++ b/rtkbt/code/bt/osi/include/alarm.h
@@ -0,0 +1,120 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+#include <stdbool.h>
+#include <stdint.h>
+
+typedef struct alarm_t alarm_t;
+typedef struct fixed_queue_t fixed_queue_t;
+typedef struct thread_t thread_t;
+typedef uint64_t period_ms_t;
+
+// Prototype for the alarm callback function.
+typedef void (*alarm_callback_t)(void *data);
+
+// Creates a new one-time off alarm object with user-assigned
+// |name|. |name| may not be NULL, and a copy of the string will
+// be stored internally. The value of |name| has no semantic
+// meaning. It is recommended that the name is unique (for
+// better debuggability), but that is not enforced. The returned
+// object must be freed by calling |alarm_free|. Returns NULL on
+// failure.
+alarm_t *alarm_new(const char *name);
+
+// Creates a new periodic alarm object with user-assigned |name|.
+// |name| may not be NULL, and a copy of the string will be
+// stored internally. The value of |name| has no semantic
+// meaning. It is recommended that the name is unique (for better
+// debuggability), but that is not enforced. The returned object
+// must be freed by calling |alarm_free|. Returns NULL on
+// failure.
+alarm_t *alarm_new_periodic(const char *name);
+
+// Frees an |alarm| object created by |alarm_new| or
+// |alarm_new_periodic|. |alarm| may be NULL. If the alarm is
+// pending, it will be cancelled first. It is not safe to call
+// |alarm_free| from inside the callback of |alarm|.
+void alarm_free(alarm_t *alarm);
+
+// Sets an |alarm| to execute a callback in the future. The |cb|
+// callback is called after the given |interval_ms|, where
+// |interval_ms| is the number of milliseconds relative to the
+// current time. If |alarm| was created with
+// |alarm_new_periodic|, the alarm is scheduled to fire
+// periodically every |interval_ms|, otherwise it is a one time
+// only alarm. A periodic alarm repeats every |interval_ms| until
+// it is cancelled or freed. When the alarm fires, the |cb|
+// callback is called with the context argument |data|:
+//
+//      void cb(void *data) {...}
+//
+// The |data| argument may be NULL, but the |cb| callback may not
+// be NULL. All |cb| callbacks scheduled through this call are
+// called within a single (internally created) thread. That
+// thread is not same as the caller’s thread. If two (or more)
+// alarms are set back-to-back with the same |interval_ms|, the
+// callbacks will be called in the order the alarms are set.
+void alarm_set(alarm_t *alarm, period_ms_t interval_ms,
+               alarm_callback_t cb, void *data);
+
+// Sets an |alarm| to execute a callback in the future on a
+// specific |queue|. This function is same as |alarm_set| except
+// that the |cb| callback is scheduled for execution in the
+// context of the thread responsible for processing |queue|.
+// Also, the callback execution ordering guarantee exists only
+// among alarms that are scheduled on the same queue. |queue|
+// may not be NULL.
+void alarm_set_on_queue(alarm_t *alarm, period_ms_t interval_ms,
+                        alarm_callback_t cb, void *data,
+                        fixed_queue_t *queue);
+
+// This function cancels the |alarm| if it was previously set.
+// When this call returns, the caller has a guarantee that the
+// callback is not in progress and will not be called if it
+// hasn't already been called. This function is idempotent.
+// |alarm| may not be NULL.
+void alarm_cancel(alarm_t *alarm);
+
+// Tests whether the |alarm| is scheduled.
+// Return true if the |alarm| is scheduled or NULL, otherwise false.
+bool alarm_is_scheduled(const alarm_t *alarm);
+
+// Registers |queue| for processing alarm callbacks on |thread|.
+// |queue| may not be NULL. |thread| may not be NULL.
+void alarm_register_processing_queue(fixed_queue_t *queue, thread_t *thread);
+
+// Unregisters |queue| for processing alarm callbacks on whichever thread
+// it is registered with. All alarms currently set for execution on |queue|
+// will be canceled. |queue| may not be NULL. This function is idempotent.
+void alarm_unregister_processing_queue(fixed_queue_t *queue);
+
+// Figure out how much time until next expiration.
+// Returns 0 if not armed. |alarm| may not be NULL.
+// TODO: Remove this function once PM timers can be re-factored
+period_ms_t alarm_get_remaining_ms(const alarm_t *alarm);
+
+// Cleanup the alarm internal state.
+// This function should be called by the OSI module cleanup during
+// graceful shutdown.
+void alarm_cleanup(void);
+
+// Dump alarm-related statistics and debug info to the |fd| file descriptor.
+// The information is in user-readable text format. The |fd| must be valid.
+void alarm_debug_dump(int fd);
diff --git a/rtkbt/code/bt/osi/include/allocation_tracker.h b/rtkbt/code/bt/osi/include/allocation_tracker.h
new file mode 100755
index 0000000..b9fa594
--- /dev/null
+++ b/rtkbt/code/bt/osi/include/allocation_tracker.h
@@ -0,0 +1,57 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdint.h>
+
+typedef struct allocation_tracker_t allocation_tracker_t;
+typedef uint8_t allocator_id_t;
+
+// Initialize the allocation tracker. If you do not call this function,
+// the allocation tracker functions do nothing but are still safe to call.
+void allocation_tracker_init(void);
+
+// Reset the allocation tracker. Don't call this in the normal course of
+// operations. Useful mostly for testing.
+void allocation_tracker_reset(void);
+
+// Expects that there are no allocations at the time of this call. Dumps
+// information about unfreed allocations to the log. Returns the amount of
+// unallocated memory.
+size_t allocation_tracker_expect_no_allocations(void);
+
+// Notify the tracker of a new allocation belonging to |allocator_id|.
+// If |ptr| is NULL, this function does nothing. |requested_size| is the
+// size of the allocation without any canaries. The caller must allocate
+// enough memory for canaries; the total allocation size can be determined
+// by calling |allocation_tracker_resize_for_canary|. Returns |ptr| offset
+// to the the beginning of the uncanaried region.
+void *allocation_tracker_notify_alloc(allocator_id_t allocator_id, void *ptr, size_t requested_size);
+
+// Notify the tracker of an allocation that is being freed. |ptr| must be a
+// pointer returned by a call to |allocation_tracker_notify_alloc| with the
+// same |allocator_id|. If |ptr| is NULL, this function does nothing. Returns
+// |ptr| offset to the real beginning of the allocation including any canary
+// space.
+void *allocation_tracker_notify_free(allocator_id_t allocator_id, void *ptr);
+
+// Get the full size for an allocation, taking into account the size of canaries.
+size_t allocation_tracker_resize_for_canary(size_t size);
diff --git a/rtkbt/code/bt/osi/include/allocator.h b/rtkbt/code/bt/osi/include/allocator.h
new file mode 100755
index 0000000..e746883
--- /dev/null
+++ b/rtkbt/code/bt/osi/include/allocator.h
@@ -0,0 +1,48 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+#include <stddef.h>
+#include <stdint.h>
+#include <stdlib.h>
+
+typedef void *(*alloc_fn)(size_t size);
+typedef void (*free_fn)(void *ptr);
+
+typedef struct {
+  alloc_fn alloc;
+  free_fn  free;
+} allocator_t;
+
+// allocator_t abstractions for the osi_*alloc and osi_free functions
+extern const allocator_t allocator_malloc;
+extern const allocator_t allocator_calloc;
+
+char *osi_strdup(const char *str);
+char *osi_strndup(const char *str, size_t len);
+
+void *osi_malloc(size_t size);
+void *osi_calloc(size_t size);
+void osi_free(void *ptr);
+
+// Free a buffer that was previously allocated with function |osi_malloc|
+// or |osi_calloc| and reset the pointer to that buffer to NULL.
+// |p_ptr| is a pointer to the buffer pointer to be reset.
+// |p_ptr| cannot be NULL.
+void osi_free_and_reset(void **p_ptr);
diff --git a/rtkbt/code/bt/osi/include/array.h b/rtkbt/code/bt/osi/include/array.h
new file mode 100755
index 0000000..06b93f6
--- /dev/null
+++ b/rtkbt/code/bt/osi/include/array.h
@@ -0,0 +1,57 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdint.h>
+
+typedef struct array_t array_t;
+
+// Returns a new array object that stores elements of size |element_size|. The returned
+// object must be freed with |array_free|. |element_size| must be greater than 0. Returns
+// NULL on failure.
+array_t *array_new(size_t element_size);
+
+// Frees an array that was allocated with |array_new|. |array| may be NULL.
+void array_free(array_t *array);
+
+// Returns a pointer to the first stored element in |array|. |array| must not be NULL.
+void *array_ptr(const array_t *array);
+
+// Returns a pointer to the |index|th element of |array|. |index| must be less than
+// the array's length. |array| must not be NULL.
+void *array_at(const array_t *array, size_t index);
+
+// Returns the number of elements stored in |array|. |array| must not be NULL.
+size_t array_length(const array_t *array);
+
+// Inserts an element to the end of |array| by value. For example, a caller
+// may simply call array_append_value(array, 5) instead of storing 5 into a
+// variable and then inserting by pointer. Although |value| is a uint32_t,
+// only the lowest |element_size| bytes will be stored. |array| must not be
+// NULL. Returns true if the element could be inserted into the array, false
+// on error.
+bool array_append_value(array_t *array, uint32_t value);
+
+// Inserts an element to the end of |array|. The value pointed to by |data| must
+// be at least |element_size| bytes long and will be copied into the array. Neither
+// |array| nor |data| may be NULL. Returns true if the element could be inserted into
+// the array, false on error.
+bool array_append_ptr(array_t *array, void *data);
diff --git a/rtkbt/code/bt/osi/include/buffer.h b/rtkbt/code/bt/osi/include/buffer.h
new file mode 100755
index 0000000..51d23a5
--- /dev/null
+++ b/rtkbt/code/bt/osi/include/buffer.h
@@ -0,0 +1,56 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+#include <stdbool.h>
+#include <stddef.h>
+
+typedef struct buffer_t buffer_t;
+
+// Returns a new buffer of |size| bytes. Returns NULL if a buffer could not be
+// allocated. |size| must be non-zero. The caller must release this buffer with
+// |buffer_free|.
+buffer_t *buffer_new(size_t size);
+
+// Creates a new reference to the buffer |buf|. A reference is indistinguishable
+// from the original: writes to the original will be reflected in the reference
+// and vice versa. In other words, this function creates an alias to |buf|. The
+// caller must release the returned buffer with |buffer_free|. Note that releasing
+// the returned buffer does not release |buf|. |buf| must not be NULL.
+buffer_t *buffer_new_ref(const buffer_t *buf);
+
+// Creates a new reference to the last |slice_size| bytes of |buf|. See
+// |buffer_new_ref| for a description of references. |slice_size| must be
+// greater than 0 and may be at most |buffer_length|
+// (0 < slice_size <= buffer_length). |buf| must not be NULL.
+buffer_t *buffer_new_slice(const buffer_t *buf, size_t slice_size);
+
+// Frees a buffer object. |buf| may be NULL.
+void buffer_free(buffer_t *buf);
+
+// Returns a pointer to a writeable memory region for |buf|. All references
+// and slices that share overlapping bytes will also be written to when
+// writing to the returned pointer. The caller may safely write up to
+// |buffer_length| consecutive bytes starting at the address returned by
+// this function. |buf| must not be NULL.
+void *buffer_ptr(const buffer_t *buf);
+
+// Returns the length of the writeable memory region referred to by |buf|.
+// |buf| must not be NULL.
+size_t buffer_length(const buffer_t *buf);
diff --git a/rtkbt/code/bt/osi/include/compat.h b/rtkbt/code/bt/osi/include/compat.h
new file mode 100755
index 0000000..02e13e3
--- /dev/null
+++ b/rtkbt/code/bt/osi/include/compat.h
@@ -0,0 +1,35 @@
+/******************************************************************************
+ *
+ *  Copyright 2015 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+#include <features.h>
+#include <sys/types.h>
+
+#if __GLIBC__
+
+/* Get thread identification. */
+pid_t gettid(void);
+
+/* Copy src to string dst of size siz. */
+size_t strlcpy(char *dst, const char *src, size_t siz);
+
+/* Appends src to string dst of size siz. */
+size_t strlcat(char *dst, const char *src, size_t siz);
+
+#endif
diff --git a/rtkbt/code/bt/osi/include/config.h b/rtkbt/code/bt/osi/include/config.h
new file mode 100755
index 0000000..d7c8ff9
--- /dev/null
+++ b/rtkbt/code/bt/osi/include/config.h
@@ -0,0 +1,136 @@
+#pragma once
+
+// This module implements a configuration parser. Clients can query the
+// contents of a configuration file through the interface provided here.
+// The current implementation is read-only; mutations are only kept in
+// memory. This parser supports the INI file format.
+
+// Implementation notes:
+// - Key/value pairs that are not within a section are assumed to be under
+//   the |CONFIG_DEFAULT_SECTION| section.
+// - Multiple sections with the same name will be merged as if they were in
+//   a single section.
+// - Empty sections with no key/value pairs will be treated as if they do
+//   not exist. In other words, |config_has_section| will return false for
+//   empty sections.
+// - Duplicate keys in a section will overwrite previous values.
+// - All strings are case sensitive.
+
+#include <stdbool.h>
+
+// The default section name to use if a key/value pair is not defined within
+// a section.
+#define CONFIG_DEFAULT_SECTION "Global"
+
+typedef struct config_t config_t;
+typedef struct config_section_node_t config_section_node_t;
+
+// Creates a new config object with no entries (i.e. not backed by a file).
+// This function returns a config object or NULL on error. Clients must call
+// |config_free| on the returned handle when it is no longer required.
+config_t *config_new_empty(void);
+
+// Loads the specified file and returns a handle to the config file. If there
+// was a problem loading the file or allocating memory, this function returns
+// NULL. Clients must call |config_free| on the returned handle when it is no
+// longer required. |filename| must not be NULL and must point to a readable
+// file on the filesystem.
+config_t *config_new(const char *filename);
+
+// Clones |src|, including all of it's sections, keys, and values.
+// Returns a new config which is a copy and separated from the original;
+// changes to the new config are not reflected in any way in the original.
+//
+// |src| must not be NULL
+// This function will not return NULL.
+// Clients must call config_free on the returned object.
+config_t *config_new_clone(const config_t *src);
+
+// Frees resources associated with the config file. No further operations may
+// be performed on the |config| object after calling this function. |config|
+// may be NULL.
+void config_free(config_t *config);
+
+// Returns true if the config file contains a section named |section|. If
+// the section has no key/value pairs in it, this function will return false.
+// |config| and |section| must not be NULL.
+bool config_has_section(const config_t *config, const char *section);
+
+// Returns true if the config file has a key named |key| under |section|.
+// Returns false otherwise. |config|, |section|, and |key| must not be NULL.
+bool config_has_key(const config_t *config, const char *section, const char *key);
+
+// Returns the integral value for a given |key| in |section|. If |section|
+// or |key| do not exist, or the value cannot be fully converted to an integer,
+// this function returns |def_value|. |config|, |section|, and |key| must not
+// be NULL.
+int config_get_int(const config_t *config, const char *section, const char *key, int def_value);
+
+// Returns the boolean value for a given |key| in |section|. If |section|
+// or |key| do not exist, or the value cannot be converted to a boolean, this
+// function returns |def_value|. |config|, |section|, and |key| must not be NULL.
+bool config_get_bool(const config_t *config, const char *section, const char *key, bool def_value);
+
+// Returns the string value for a given |key| in |section|. If |section| or
+// |key| do not exist, this function returns |def_value|. The returned string
+// is owned by the config module and must not be freed. |config|, |section|,
+// and |key| must not be NULL. |def_value| may be NULL.
+const char *config_get_string(const config_t *config, const char *section, const char *key, const char *def_value);
+
+// Sets an integral value for the |key| in |section|. If |key| or |section| do
+// not already exist, this function creates them. |config|, |section|, and |key|
+// must not be NULL.
+void config_set_int(config_t *config, const char *section, const char *key, int value);
+
+// Sets a boolean value for the |key| in |section|. If |key| or |section| do
+// not already exist, this function creates them. |config|, |section|, and |key|
+// must not be NULL.
+void config_set_bool(config_t *config, const char *section, const char *key, bool value);
+
+// Sets a string value for the |key| in |section|. If |key| or |section| do
+// not already exist, this function creates them. |config|, |section|, |key|, and
+// |value| must not be NULL.
+void config_set_string(config_t *config, const char *section, const char *key, const char *value);
+
+// Removes |section| from the |config| (and, as a result, all keys in the section).
+// Returns true if |section| was found and removed from |config|, false otherwise.
+// Neither |config| nor |section| may be NULL.
+bool config_remove_section(config_t *config, const char *section);
+
+// Removes one specific |key| residing in |section| of the |config|. Returns true
+// if the section and key were found and the key was removed, false otherwise.
+// None of |config|, |section|, or |key| may be NULL.
+bool config_remove_key(config_t *config, const char *section, const char *key);
+
+// Returns an iterator to the first section in the config file. If there are no
+// sections, the iterator will equal the return value of |config_section_end|.
+// The returned pointer must be treated as an opaque handle and must not be freed.
+// The iterator is invalidated on any config mutating operation. |config| may not
+// be NULL.
+const config_section_node_t *config_section_begin(const config_t *config);
+
+// Returns an iterator to one past the last section in the config file. It does not
+// represent a valid section, but can be used to determine if all sections have been
+// iterated over. The returned pointer must be treated as an opaque handle and must
+// not be freed and must not be iterated on (must not call |config_section_next| on
+// it). |config| may not be NULL.
+const config_section_node_t *config_section_end(const config_t *config);
+
+// Moves |iter| to the next section. If there are no more sections, |iter| will
+// equal the value of |config_section_end|. |iter| may not be NULL and must be
+// a pointer returned by either |config_section_begin| or |config_section_next|.
+const config_section_node_t *config_section_next(const config_section_node_t *iter);
+
+// Returns the name of the section referred to by |iter|. The returned pointer is
+// owned by the config module and must not be freed by the caller. The pointer will
+// remain valid until |config_free| is called. |iter| may not be NULL and must not
+// equal the value returned by |config_section_end|.
+const char *config_section_name(const config_section_node_t *iter);
+
+// Saves |config| to a file given by |filename|. Note that this could be a destructive
+// operation: if |filename| already exists, it will be overwritten. The config
+// module does not preserve comments or formatting so if a config file was opened
+// with |config_new| and subsequently overwritten with |config_save|, all comments
+// and special formatting in the original file will be lost. Neither |config| nor
+// |filename| may be NULL.
+bool config_save(const config_t *config, const char *filename);
diff --git a/rtkbt/code/bt/osi/include/data_dispatcher.h b/rtkbt/code/bt/osi/include/data_dispatcher.h
new file mode 100755
index 0000000..3cdb07d
--- /dev/null
+++ b/rtkbt/code/bt/osi/include/data_dispatcher.h
@@ -0,0 +1,56 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+#include <stdbool.h>
+#include <stdint.h>
+
+#include "osi/include/fixed_queue.h"
+
+#define DISPATCHER_NAME_MAX 16
+
+typedef struct data_dispatcher_t data_dispatcher_t;
+typedef uintptr_t data_dispatcher_type_t;
+
+// Creates a new data dispatcher object, with the given name.
+// The returned object must be freed by calling |data_dispatcher_free|.
+// Returns NULL on failure. |name| may not be NULL.
+data_dispatcher_t *data_dispatcher_new(const char *name);
+
+// Frees a data dispatcher object created by |data_dispatcher_new|.
+// |data_dispatcher| may be NULL.
+void data_dispatcher_free(data_dispatcher_t *dispatcher);
+
+// Registers |type| and |queue| with the data dispatcher so that data
+// sent under |type| ends up in |queue|. If |type| is already registered,
+// it is replaced. If |queue| is NULL, the existing registration is
+// removed, if it exists. |dispatcher| may not be NULL.
+void data_dispatcher_register(data_dispatcher_t *dispatcher, data_dispatcher_type_t type, fixed_queue_t *queue);
+
+// Registers a default queue to send data to when there is not a specific
+// type/queue relationship registered. If a default queue is already registered,
+// it is replaced. If |queue| is NULL, the existing registration is
+// removed, if it exists. |dispatcher| may not be NULL.
+void data_dispatcher_register_default(data_dispatcher_t *dispatcher, fixed_queue_t *queue);
+
+// Dispatches |data| to the queue registered for |type|. If no such registration
+// exists, it is dispatched to the default queue if it exists.
+// Neither |dispatcher| nor |data| may be NULL.
+// Returns true if data dispatch was successful.
+bool data_dispatcher_dispatch(data_dispatcher_t *dispatcher, data_dispatcher_type_t type, void *data);
diff --git a/rtkbt/code/bt/osi/include/eager_reader.h b/rtkbt/code/bt/osi/include/eager_reader.h
new file mode 100755
index 0000000..c87995d
--- /dev/null
+++ b/rtkbt/code/bt/osi/include/eager_reader.h
@@ -0,0 +1,67 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdint.h>
+
+#include "osi/include/allocator.h"
+#include "osi/include/thread.h"
+
+typedef struct eager_reader_t eager_reader_t;
+typedef struct reactor_t reactor_t;
+
+typedef void (*eager_reader_cb)(eager_reader_t *reader, void *context);
+
+// Creates a new eager reader object, which pulls data from |fd_to_read| into
+// buffers of size |buffer_size| allocated using |allocator|, and has an
+// internal read thread named |thread_name|. The returned object must be freed using
+// |eager_reader_free|. |fd_to_read| must be valid, |buffer_size| and |max_buffer_count|
+// must be greater than zero. |allocator| and |thread_name| may not be NULL.
+eager_reader_t *eager_reader_new(
+  int fd_to_read,
+  const allocator_t *allocator,
+  size_t buffer_size,
+  size_t max_buffer_count,
+  const char *thread_name
+);
+
+// Frees an eager reader object, and associated internal resources.
+// |reader| may be NULL.
+void eager_reader_free(eager_reader_t *reader);
+
+// Registers |reader| with the |reactor|. When the reader has data
+// |read_cb| will be called. The |context| parameter is passed, untouched, to |read_cb|.
+// Neither |reader|, nor |reactor|, nor |read_cb| may be NULL. |context| may be NULL.
+void eager_reader_register(eager_reader_t *reader, reactor_t *reactor, eager_reader_cb read_cb, void *context);
+
+// Unregisters |reader| from whichever reactor it is registered with, if any. This
+// function is idempotent.
+void eager_reader_unregister(eager_reader_t *reader);
+
+// Reads up to |max_size| bytes into |buffer| from currently available bytes.
+// NOT SAFE FOR READING FROM MULTIPLE THREADS
+// but you should probably only be reading from one thread anyway,
+// otherwise the byte stream probably doesn't make sense.
+size_t eager_reader_read(eager_reader_t *reader, uint8_t *buffer, size_t max_size);
+
+// Returns the inbound read thread for a given |reader| or NULL if the thread
+// is not running.
+thread_t* eager_reader_get_read_thread(const eager_reader_t *reader);
diff --git a/rtkbt/code/bt/osi/include/fixed_queue.h b/rtkbt/code/bt/osi/include/fixed_queue.h
new file mode 100755
index 0000000..1fb1b4b
--- /dev/null
+++ b/rtkbt/code/bt/osi/include/fixed_queue.h
@@ -0,0 +1,124 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+#include <stdbool.h>
+#include <stdlib.h>
+
+#include "osi/include/list.h"
+
+struct fixed_queue_t;
+typedef struct fixed_queue_t fixed_queue_t;
+typedef struct reactor_t reactor_t;
+
+typedef void (*fixed_queue_free_cb)(void *data);
+typedef void (*fixed_queue_cb)(fixed_queue_t *queue, void *context);
+
+// Creates a new fixed queue with the given |capacity|. If more elements than
+// |capacity| are added to the queue, the caller is blocked until space is
+// made available in the queue. Returns NULL on failure. The caller must free
+// the returned queue with |fixed_queue_free|.
+fixed_queue_t *fixed_queue_new(size_t capacity);
+
+// Freeing a queue that is currently in use (i.e. has waiters
+// blocked on it) results in undefined behaviour.
+void fixed_queue_free(fixed_queue_t *queue, fixed_queue_free_cb free_cb);
+
+// Returns a value indicating whether the given |queue| is empty. If |queue|
+// is NULL, the return value is true.
+bool fixed_queue_is_empty(fixed_queue_t *queue);
+
+// Returns the length of the |queue|. If |queue| is NULL, the return value
+// is 0.
+size_t fixed_queue_length(fixed_queue_t *queue);
+
+// Returns the maximum number of elements this queue may hold. |queue| may
+// not be NULL.
+size_t fixed_queue_capacity(fixed_queue_t *queue);
+
+// Enqueues the given |data| into the |queue|. The caller will be blocked
+// if no more space is available in the queue. Neither |queue| nor |data|
+// may be NULL.
+void fixed_queue_enqueue(fixed_queue_t *queue, void *data);
+
+// Dequeues the next element from |queue|. If the queue is currently empty,
+// this function will block the caller until an item is enqueued. This
+// function will never return NULL. |queue| may not be NULL.
+void *fixed_queue_dequeue(fixed_queue_t *queue);
+
+// Tries to enqueue |data| into the |queue|. This function will never block
+// the caller. If the queue capacity would be exceeded by adding one more
+// element, this function returns false immediately. Otherwise, this function
+// returns true. Neither |queue| nor |data| may be NULL.
+bool fixed_queue_try_enqueue(fixed_queue_t *queue, void *data);
+
+// Tries to dequeue an element from |queue|. This function will never block
+// the caller. If the queue is empty or NULL, this function returns NULL
+// immediately. Otherwise, the next element in the queue is returned.
+void *fixed_queue_try_dequeue(fixed_queue_t *queue);
+
+// Returns the first element from |queue|, if present, without dequeuing it.
+// This function will never block the caller. Returns NULL if there are no
+// elements in the queue or |queue| is NULL.
+void *fixed_queue_try_peek_first(fixed_queue_t *queue);
+
+// Returns the last element from |queue|, if present, without dequeuing it.
+// This function will never block the caller. Returns NULL if there are no
+// elements in the queue or |queue| is NULL.
+void *fixed_queue_try_peek_last(fixed_queue_t *queue);
+
+// Tries to remove a |data| element from the middle of the |queue|. This
+// function will never block the caller. If the queue is empty or NULL, this
+// function returns NULL immediately. |data| may not be NULL. If the |data|
+// element is found in the queue, a pointer to the removed data is returned,
+// otherwise NULL.
+void *fixed_queue_try_remove_from_queue(fixed_queue_t *queue, void *data);
+
+// Returns the iterateable list with all entries in the |queue|. This function
+// will never block the caller. |queue| may not be NULL.
+//
+// NOTE: The return result of this function is not thread safe: the list could
+// be modified by another thread, and the result would be unpredictable.
+// TODO: The usage of this function should be refactored, and the function
+// itself should be removed.
+list_t *fixed_queue_get_list(fixed_queue_t *queue);
+
+// This function returns a valid file descriptor. Callers may perform one
+// operation on the fd: select(2). If |select| indicates that the file
+// descriptor is readable, the caller may call |fixed_queue_enqueue| without
+// blocking. The caller must not close the returned file descriptor. |queue|
+// may not be NULL.
+int fixed_queue_get_enqueue_fd(const fixed_queue_t *queue);
+
+// This function returns a valid file descriptor. Callers may perform one
+// operation on the fd: select(2). If |select| indicates that the file
+// descriptor is readable, the caller may call |fixed_queue_dequeue| without
+// blocking. The caller must not close the returned file descriptor. |queue|
+// may not be NULL.
+int fixed_queue_get_dequeue_fd(const fixed_queue_t *queue);
+
+// Registers |queue| with |reactor| for dequeue operations. When there is an element
+// in the queue, ready_cb will be called. The |context| parameter is passed, untouched,
+// to the callback routine. Neither |queue|, nor |reactor|, nor |read_cb| may be NULL.
+// |context| may be NULL.
+void fixed_queue_register_dequeue(fixed_queue_t *queue, reactor_t *reactor, fixed_queue_cb ready_cb, void *context);
+
+// Unregisters the dequeue ready callback for |queue| from whichever reactor
+// it is registered with, if any. This function is idempotent.
+void fixed_queue_unregister_dequeue(fixed_queue_t *queue);
diff --git a/rtkbt/code/bt/osi/include/future.h b/rtkbt/code/bt/osi/include/future.h
new file mode 100755
index 0000000..d1bbd64
--- /dev/null
+++ b/rtkbt/code/bt/osi/include/future.h
@@ -0,0 +1,41 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+typedef struct future_t future_t;
+
+#define FUTURE_SUCCESS ((void *)1)
+#define FUTURE_FAIL ((void *)0)
+
+// Constructs a new future_t object. Returns NULL on failure.
+future_t *future_new(void);
+
+// Constructs a new future_t object with an immediate |value|. No waiting will
+// occur in the call to |future_await| because the value is already present.
+// Returns NULL on failure.
+future_t *future_new_immediate(void *value);
+
+// Signals that the |future| is ready, passing |value| back to the context
+// waiting for the result. Must only be called once for every future.
+// |future| may not be NULL.
+void future_ready(future_t *future, void *value);
+
+// Waits for the |future| to be ready. Returns the value set in |future_ready|.
+// Frees the future before return. |future| may not be NULL.
+void *future_await(future_t *async_result);
diff --git a/rtkbt/code/bt/osi/include/hash_functions.h b/rtkbt/code/bt/osi/include/hash_functions.h
new file mode 100755
index 0000000..7127d51
--- /dev/null
+++ b/rtkbt/code/bt/osi/include/hash_functions.h
@@ -0,0 +1,30 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+#include "osi/include/hash_map.h"
+
+hash_index_t hash_function_naive(const void *key);
+
+hash_index_t hash_function_integer(const void *key);
+
+// Hashes a pointer based only on its address value
+hash_index_t hash_function_pointer(const void *key);
+
+hash_index_t hash_function_string(const void *key);
diff --git a/rtkbt/code/bt/osi/include/hash_map.h b/rtkbt/code/bt/osi/include/hash_map.h
new file mode 100755
index 0000000..422fd39
--- /dev/null
+++ b/rtkbt/code/bt/osi/include/hash_map.h
@@ -0,0 +1,108 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdint.h>
+
+struct hash_map_t;
+typedef struct hash_map_t hash_map_t;
+
+typedef struct hash_map_entry_t {
+  const void *key;
+  void *data;
+  const hash_map_t *hash_map;
+} hash_map_entry_t;
+
+typedef size_t hash_index_t;
+
+// Takes a key structure and returns a hash value.
+typedef hash_index_t (*hash_index_fn)(const void *key);
+typedef bool (*hash_map_iter_cb)(hash_map_entry_t *hash_entry, void *context);
+
+typedef bool (*key_equality_fn)(const void *x, const void *y);
+
+typedef void (*key_free_fn)(void *key);
+typedef void (*data_free_fn)(void *data);
+
+// Returns a new, empty hash_map. Returns NULL if not enough memory could be allocated
+// for the hash_map structure. The returned hash_map must be freed with |hash_map_free|.
+// The |num_bucket| specifies the number of hashable buckets for the map and must not
+// be zero.  The |hash_fn| specifies a hash function to be used and must not be NULL.
+// The |key_fn| and |data_fn| are called whenever a hash_map element is removed from
+// the hash_map. They can be used to release resources held by the hash_map element,
+// e.g.  memory or file descriptor.  |key_fn| and |data_fn| may be NULL if no cleanup
+// is necessary on element removal. |equality_fn| is used to check for key equality.
+// If |equality_fn| is NULL, default pointer equality is used.
+hash_map_t *hash_map_new(
+    size_t size,
+    hash_index_fn hash_fn,
+    key_free_fn key_fn,
+    data_free_fn data_fn,
+    key_equality_fn equality_fn);
+
+// Frees the hash_map. This function accepts NULL as an argument, in which case it
+// behaves like a no-op.
+void hash_map_free(hash_map_t *hash_map);
+
+// Returns true if the hash_map is empty (has no elements), false otherwise.
+// Note that a NULL |hash_map| is not the same as an empty |hash_map|. This function
+// does not accept a NULL |hash_map|.
+bool hash_map_is_empty(const hash_map_t *hash_map);
+
+// Returns the number of elements in the hash map.  This function does not accept a
+// NULL |hash_map|.
+size_t hash_map_size(const hash_map_t *hash_map);
+
+// Returns the number of buckets in the hash map.  This function does not accept a
+// NULL |hash_map|.
+size_t hash_map_num_buckets(const hash_map_t *hash_map);
+
+// Returns true if the hash_map has a valid entry for the presented key.
+// This function does not accept a NULL |hash_map|.
+bool hash_map_has_key(const hash_map_t *hash_map, const void *key);
+
+// Returns the element indexed by |key| in the hash_map without removing it. |hash_map|
+// may not be NULL.  Returns NULL if no entry indexed by |key|.
+void *hash_map_get(const hash_map_t *hash_map, const void *key);
+
+// Sets the value |data| indexed by |key| into the |hash_map|. Neither |data| nor
+// |hash_map| may be NULL.  This function does not make copies of |data| nor |key|
+// so the pointers must remain valid at least until the element is removed from the
+// hash_map or the hash_map is freed.  Returns true if |data| could be set, false
+// otherwise (e.g. out of memory).
+bool hash_map_set(hash_map_t *hash_map, const void *key, void *data);
+
+// Removes data indexed by |key| from the hash_map. |hash_map| may not be NULL.
+// If |key_fn| or |data_fn| functions were specified in |hash_map_new|, they
+// will be called back with |key| or |data| respectively. This function returns true
+// if |key| was found in the hash_map and removed, false otherwise.
+bool hash_map_erase(hash_map_t *hash_map, const void *key);
+
+// Removes all elements in the hash_map. Calling this function will return the hash_map
+// to the same state it was in after |hash_map_new|. |hash_map| may not be NULL.
+void hash_map_clear(hash_map_t *hash_map);
+
+// Iterates through the entire |hash_map| and calls |callback| for each data
+// element and passes through the |context| argument. If the hash_map is
+// empty, |callback| will never be called. It is not safe to mutate the
+// hash_map inside the callback. Neither |hash_map| nor |callback| may be NULL.
+// If |callback| returns false, the iteration loop will immediately exit.
+void hash_map_foreach(hash_map_t *hash_map, hash_map_iter_cb callback, void *context);
diff --git a/rtkbt/code/bt/osi/include/hash_map_utils.h b/rtkbt/code/bt/osi/include/hash_map_utils.h
new file mode 100755
index 0000000..783a5af
--- /dev/null
+++ b/rtkbt/code/bt/osi/include/hash_map_utils.h
@@ -0,0 +1,37 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2015 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+#include "osi/include/hash_map.h"
+
+// Creates a hash map based on the |params| string containing key and value
+// pairs.  Pairs are expected in the form "key=value" separated by the ';'
+// character.  Both ';' and '=' characters are invalid in keys or values.
+// |params| cannot be NULL, is not modified and is owned by the caller.
+// Examples:
+//   "key0=value10;key1=value1;" -> map: [key0]="value0" [key1]="value1"
+//   "key0=;key1=value1;"        -> map: [key0]="" [key1]="value1"
+//   "=value0;key1=value1;"      -> map: [key1]="value1"
+// A new hash map or NULL is returned and is owned by the caller.
+hash_map_t *hash_map_utils_new_from_string_params(const char *params);
+
+// Dumps the contents of the hash_map to the log for debugging purposes.
+// If |map| is not NULL, all entries of |map| will be dumped, otherwise nothing
+// will be dumped. Note that this function does not take the ownership of |map|.
+void hash_map_utils_dump_string_keys_string_values(hash_map_t *map);
diff --git a/rtkbt/code/bt/osi/include/list.h b/rtkbt/code/bt/osi/include/list.h
new file mode 100755
index 0000000..a510178
--- /dev/null
+++ b/rtkbt/code/bt/osi/include/list.h
@@ -0,0 +1,114 @@
+#pragma once
+
+#include <stdbool.h>
+#include <stdlib.h>
+
+struct list_node_t;
+typedef struct list_node_t list_node_t;
+
+struct list_t;
+typedef struct list_t list_t;
+
+typedef void (*list_free_cb)(void *data);
+
+// Iterator callback prototype used for |list_foreach|.
+// |data| represents the list item currently being iterated, |context| is a
+// user defined value passed into |list_foreach|.
+// Callback must return true to continue iterating or false to stop iterating.
+typedef bool (*list_iter_cb)(void *data, void *context);
+
+// Returns a new, empty list. Returns NULL if not enough memory could be allocated
+// for the list structure. The returned list must be freed with |list_free|. The
+// |callback| specifies a function to be called whenever a list element is removed
+// from the list. It can be used to release resources held by the list element, e.g.
+// memory or file descriptor. |callback| may be NULL if no cleanup is necessary on
+// element removal.
+list_t *list_new(list_free_cb callback);
+
+// Frees the list. This function accepts NULL as an argument, in which case it
+// behaves like a no-op.
+void list_free(list_t *list);
+
+// Returns true if |list| is empty (has no elements), false otherwise.
+// |list| may not be NULL.
+bool list_is_empty(const list_t *list);
+
+// Returns true if the list contains |data|, false otherwise.
+// |list| may not be NULL.
+bool list_contains(const list_t *list, const void *data);
+
+// Returns the length of the |list|. |list| may not be NULL.
+size_t list_length(const list_t *list);
+
+// Returns the first element in the list without removing it. |list| may not
+// be NULL or empty.
+void *list_front(const list_t *list);
+
+// Returns the last element in the list without removing it. |list| may not
+// be NULL or empty.
+void *list_back(const list_t *list);
+
+// Returns the last node in the list without removing it. |list| may not
+// be NULL or empty.
+list_node_t *list_back_node(const list_t *list);
+
+// Inserts |data| after |prev_node| in |list|. |data|, |list|, and |prev_node|
+// may not be NULL. This function does not make a copy of |data| so the pointer
+// must remain valid at least until the element is removed from the list or the
+// list is freed. Returns true if |data| could be inserted, false otherwise
+// (e.g. out of memory).
+bool list_insert_after(list_t *list, list_node_t *prev_node, void *data);
+
+// Inserts |data| at the beginning of |list|. Neither |data| nor |list| may be NULL.
+// This function does not make a copy of |data| so the pointer must remain valid
+// at least until the element is removed from the list or the list is freed.
+// Returns true if |data| could be inserted, false otherwise (e.g. out of memory).
+bool list_prepend(list_t *list, void *data);
+
+// Inserts |data| at the end of |list|. Neither |data| nor |list| may be NULL.
+// This function does not make a copy of |data| so the pointer must remain valid
+// at least until the element is removed from the list or the list is freed.
+// Returns true if |data| could be inserted, false otherwise (e.g. out of memory).
+bool list_append(list_t *list, void *data);
+
+// Removes |data| from the list. Neither |list| nor |data| may be NULL. If |data|
+// is inserted multiple times in the list, this function will only remove the first
+// instance. If a free function was specified in |list_new|, it will be called back
+// with |data|. This function returns true if |data| was found in the list and removed,
+// false otherwise.
+bool list_remove(list_t *list, void *data);
+
+// Removes all elements in the list. Calling this function will return the list to the
+// same state it was in after |list_new|. |list| may not be NULL.
+void list_clear(list_t *list);
+
+// Iterates through the |list| and calls |callback| for each data element. Iteration
+// continues until |callback| returns false. The function returns the pointer to last
+// processed element, or NULL if the list is empty, or all calls to |callback| returned
+// true. |context| is passed to |callback| on each iteration.
+// If the list is empty, |callback| will never be called. It is safe to mutate the
+// list inside the callback. If an element is added before the node being visited,
+// there will be no callback for the newly-inserted node. Neither |list| nor
+// |callback| may be NULL.
+list_node_t *list_foreach(const list_t *list, list_iter_cb callback, void *context);
+
+// Returns an iterator to the first element in |list|. |list| may not be NULL.
+// The returned iterator is valid as long as it does not equal the value returned
+// by |list_end|.
+list_node_t *list_begin(const list_t *list);
+
+// Returns an iterator that points past the end of the list. In other words,
+// this function returns the value of an invalid iterator for the given list.
+// When an iterator has the same value as what's returned by this function, you
+// may no longer call |list_next| with the iterator. |list| may not be NULL.
+list_node_t *list_end(const list_t *list);
+
+// Given a valid iterator |node|, this function returns the next value for the
+// iterator. If the returned value equals the value returned by |list_end|, the
+// iterator has reached the end of the list and may no longer be used for any
+// purpose.
+list_node_t *list_next(const list_node_t *node);
+
+// Returns the value stored at the location pointed to by the iterator |node|.
+// |node| must not equal the value returned by |list_end|.
+void *list_node(const list_node_t *node);
diff --git a/rtkbt/code/bt/osi/include/log.h b/rtkbt/code/bt/osi/include/log.h
new file mode 100755
index 0000000..738462e
--- /dev/null
+++ b/rtkbt/code/bt/osi/include/log.h
@@ -0,0 +1,52 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+/*
+ * TODO(armansito): Work-around until we figure out a way to generate logs in a
+ * platform-independent manner.
+ */
+#if defined(OS_GENERIC)
+
+/* syslog didn't work well here since we would be redefining LOG_DEBUG. */
+#include <stdio.h>
+
+#define LOGWRAPPER(tag, fmt, args...) fprintf(stderr, "%s: " fmt "\n", tag, ## args)
+
+#define LOG_VERBOSE(...) LOGWRAPPER(__VA_ARGS__)
+#define LOG_DEBUG(...) LOGWRAPPER(__VA_ARGS__)
+#define LOG_INFO(...) LOGWRAPPER(__VA_ARGS__)
+#define LOG_WARN(...) LOGWRAPPER(__VA_ARGS__)
+#define LOG_ERROR(...) LOGWRAPPER(__VA_ARGS__)
+
+#else  /* !defined(OS_GENERIC) */
+
+#include <cutils/log.h>
+
+#if LOG_NDEBUG
+#define LOG_VERBOSE(...) ((void)0)
+#else  // LOG_NDEBUG
+#define LOG_VERBOSE(tag, fmt, args...) ALOG(LOG_VERBOSE, tag, fmt, ## args)
+#endif  // !LOG_NDEBUG
+#define LOG_DEBUG(tag, fmt, args...)   ALOG(LOG_DEBUG, tag, fmt, ## args )
+#define LOG_INFO(tag, fmt, args...)    ALOG(LOG_INFO, tag, fmt, ## args)
+#define LOG_WARN(tag, fmt, args...)    ALOG(LOG_WARN, tag, fmt, ## args)
+#define LOG_ERROR(tag, fmt, args...)   ALOG(LOG_ERROR, tag, fmt, ## args)
+
+#endif  /* defined(OS_GENERIC) */
diff --git a/rtkbt/code/bt/osi/include/metrics.h b/rtkbt/code/bt/osi/include/metrics.h
new file mode 100755
index 0000000..4855301
--- /dev/null
+++ b/rtkbt/code/bt/osi/include/metrics.h
@@ -0,0 +1,97 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2016 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+#include <stdint.h>
+
+typedef enum {
+  DEVICE_TYPE_UNKNOWN,
+  DEVICE_TYPE_BREDR,
+  DEVICE_TYPE_LE,
+  DEVICE_TYPE_DUMO,
+} device_type_t;
+
+// Record a pairing event at Unix epoch time |timestamp_ms|
+// |device_class| and |device_type| denote the type of device paired.
+// |disconnect_reason| is the HCI reason for pairing disconnection,
+// see stack/include/hcidefs.h
+void metrics_pair_event(uint32_t disconnect_reason, uint64_t timestamp_ms,
+                        uint32_t device_class, device_type_t device_type);
+
+typedef enum {
+  WAKE_EVENT_UNKNOWN,
+  WAKE_EVENT_ACQUIRED,
+  WAKE_EVENT_RELEASED,
+} wake_event_type_t;
+
+// Record a wake event at Unix epoch time |timestamp_ms|.
+// |type| specifies whether it was acquired or relased,
+// |requestor| if provided is the service requesting the wake lock.
+// |name| is the name of the wake lock held.
+void metrics_wake_event(wake_event_type_t type, const char *requestor,
+                        const char *name, uint64_t timestamp_ms);
+
+typedef enum {
+  SCAN_TYPE_UNKNOWN,
+  SCAN_TECH_TYPE_LE,
+  SCAN_TECH_TYPE_BREDR,
+  SCAN_TECH_TYPE_BOTH,
+} scan_tech_t;
+
+// Record a scan event at Unix epoch time |timestamp_ms|.
+// |start| is true if this is the beginning of the scan.
+// |initiator| is a unique ID identifying the app starting the scan.
+// |type| is whether the scan reports BR/EDR, LE, or both.
+// |results| is the number of results to be reported.
+void metrics_scan_event(bool start, const char *initator, scan_tech_t type,
+                        uint32_t results, uint64_t timestamp_ms);
+
+// Record A2DP session information.
+// |session_duration_sec| is the session duration (in seconds).
+// |device_class| is the device class of the paired device.
+// |media_timer_min_ms| is the minimum scheduled time (in milliseconds)
+// of the media timer.
+// |media_timer_max_ms| is the maximum scheduled time (in milliseconds)
+// of the media timer.
+// |media_timer_avg_ms| is the average scheduled time (in milliseconds)
+// of the media timer.
+// |buffer_overruns_max_count| - TODO - not clear what this is.
+// |buffer_overruns_total| is the number of times the media buffer with
+// audio data has overrun.
+// |buffer_underruns_average| - TODO - not clear what this is.
+// |buffer_underruns_count| is the number of times there was no enough
+// audio data to add to the media buffer.
+void metrics_a2dp_session(int64_t session_duration_sec,
+                          const char *disconnect_reason,
+                          uint32_t device_class,
+                          int32_t media_timer_min_ms,
+                          int32_t media_timer_max_ms,
+                          int32_t media_timer_avg_ms,
+                          int32_t buffer_overruns_max_count,
+                          int32_t buffer_overruns_total,
+                          float buffer_underruns_average,
+                          int32_t buffer_underruns_count);
+
+// Writes the metrics, in packed protobuf format, into the descriptor |fd|.
+// If |clear| is true, metrics events are cleared afterwards.
+void metrics_write(int fd, bool clear);
+
+// Writes the metrics, in human-readable protobuf format, into the descriptor
+// |fd|. If |clear| is true, metrics events are cleared afterwards.
+void metrics_print(int fd, bool clear);
diff --git a/rtkbt/code/bt/osi/include/mutex.h b/rtkbt/code/bt/osi/include/mutex.h
new file mode 100755
index 0000000..6b6a545
--- /dev/null
+++ b/rtkbt/code/bt/osi/include/mutex.h
@@ -0,0 +1,33 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2015 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+#include <stdint.h>
+
+// Mutex-related state init
+void mutex_init(void);
+
+// Mutex-related state cleanup
+void mutex_cleanup(void);
+
+// Lock the global mutex
+void mutex_global_lock(void);
+
+// Unlock the global mutex
+void mutex_global_unlock(void);
diff --git a/rtkbt/code/bt/osi/include/osi.h b/rtkbt/code/bt/osi/include/osi.h
new file mode 100755
index 0000000..cd9887c
--- /dev/null
+++ b/rtkbt/code/bt/osi/include/osi.h
@@ -0,0 +1,64 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2016 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+#include <stdbool.h>
+#include <stdint.h>
+
+#define UNUSED_ATTR __attribute__((unused))
+#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
+#define INVALID_FD (-1)
+
+#define CONCAT(a, b) a##b
+
+// Use during compile time to check conditional values
+// NOTE: The the failures will present as a generic error
+// "error: initialization makes pointer from integer without a cast"
+// but the file and line number will present the condition that
+// failed.
+#define DUMMY_COUNTER(c) CONCAT(__osi_dummy_, c)
+#define DUMMY_PTR DUMMY_COUNTER(__COUNTER__)
+
+// base/macros.h defines a COMPILE_ASSERT macro to the C++11 keyword
+// "static_assert" (it undef's COMPILE_ASSERT before redefining it).
+// C++ code that includes base and osi/include/osi.h can thus easily default to
+// the definition from libbase but we should check here to avoid compile errors.
+#ifndef COMPILE_ASSERT
+#define COMPILE_ASSERT(COND) typedef int failed_compile_assert[(COND) ? 1 : -1] __attribute__ ((unused))
+#endif  // COMPILE_ASSERT
+
+// Macros for safe integer to pointer conversion. In the C language, data is
+// commonly cast to opaque pointer containers and back for generic parameter
+// passing in callbacks. These macros should be used sparingly in new code
+// (never in C++ code). Whenever integers need to be passed as a pointer, use
+// these macros.
+#define PTR_TO_UINT(p) ((unsigned int) ((uintptr_t) (p)))
+#define UINT_TO_PTR(u) ((void *) ((uintptr_t) (u)))
+
+#define PTR_TO_INT(p) ((int) ((intptr_t) (p)))
+#define INT_TO_PTR(i) ((void *) ((intptr_t) (i)))
+
+// Obtain a random number between 0 and INT_MAX inclusive.
+// Taken from a system random source such as /dev/random.
+// No guarantees of distribution are made.
+// Effort is made for this to come from a real random source.
+int osi_rand(void);
+
+// Re-run |fn| system call until the system call doesn't cause EINTR.
+#define OSI_NO_INTR(fn)  do {} while ((fn) == -1 && errno == EINTR)
diff --git a/rtkbt/code/bt/osi/include/properties.h b/rtkbt/code/bt/osi/include/properties.h
new file mode 100755
index 0000000..bb3e61d
--- /dev/null
+++ b/rtkbt/code/bt/osi/include/properties.h
@@ -0,0 +1,37 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2016 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+#if defined(OS_GENERIC)
+#define PROPERTY_VALUE_MAX 92
+#else
+#include <cutils/properties.h>
+#endif  // defined(OS_GENERIC)
+
+// Get value associated with key |key| into |value|.
+// Returns the length of the value which will never be greater than
+// PROPERTY_VALUE_MAX - 1 and will always be zero terminated.
+// (the length does not include the terminating zero).
+// If the property read fails or returns an empty value, the |default_value|
+// is used (if nonnull).
+int osi_property_get(const char *key, char *value, const char *default_value);
+
+// Write value of property associated with key |key| to |value|.
+// Returns 0 on success, < 0 on failure
+int osi_property_set(const char *key, const char *value);
diff --git a/rtkbt/code/bt/osi/include/reactor.h b/rtkbt/code/bt/osi/include/reactor.h
new file mode 100755
index 0000000..c5206c2
--- /dev/null
+++ b/rtkbt/code/bt/osi/include/reactor.h
@@ -0,0 +1,82 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+#include <stdbool.h>
+#include <stdint.h>
+
+#include "osi/include/osi.h"
+
+// This module implements the Reactor pattern.
+// See http://en.wikipedia.org/wiki/Reactor_pattern for details.
+
+typedef struct reactor_t reactor_t;
+typedef struct reactor_object_t reactor_object_t;
+
+// Enumerates the reasons a reactor has stopped.
+typedef enum {
+  REACTOR_STATUS_STOP,     // |reactor_stop| was called.
+  REACTOR_STATUS_ERROR,    // there was an error during the operation.
+  REACTOR_STATUS_DONE,     // the reactor completed its work (for the _run_once* variants).
+} reactor_status_t;
+
+// Creates a new reactor object. Returns NULL on failure. The returned object
+// must be freed by calling |reactor_free|.
+reactor_t *reactor_new(void);
+
+// Frees a reactor object created with |reactor_new|. |reactor| may be NULL.
+void reactor_free(reactor_t *reactor);
+
+// Starts the reactor. This function blocks the caller until |reactor_stop| is called
+// from another thread or in a callback. |reactor| may not be NULL.
+reactor_status_t reactor_start(reactor_t *reactor);
+
+// Runs one iteration of the reactor. This function blocks until at least one registered object
+// becomes ready. |reactor| may not be NULL.
+reactor_status_t reactor_run_once(reactor_t *reactor);
+
+// Immediately unblocks the reactor. This function is safe to call from any thread.
+// |reactor| may not be NULL.
+void reactor_stop(reactor_t *reactor);
+
+// Registers a file descriptor with the reactor. The file descriptor, |fd|, must be valid
+// when this function is called and its ownership is not transferred to the reactor. The
+// |context| variable is a user-defined opaque handle that is passed back to the |read_ready|
+// and |write_ready| functions. It is not copied or even dereferenced by the reactor so it
+// may contain any value including NULL. The |read_ready| and |write_ready| arguments are
+// optional and may be NULL. This function returns an opaque object that represents the
+// file descriptor's registration with the reactor. When the caller is no longer interested
+// in events on the |fd|, it must free the returned object by calling |reactor_unregister|.
+reactor_object_t *reactor_register(reactor_t *reactor,
+    int fd, void *context,
+    void (*read_ready)(void *context),
+    void (*write_ready)(void *context));
+
+// Changes the subscription mode for the file descriptor represented by |object|. If the
+// caller has already registered a file descriptor with a reactor, has a valid |object|,
+// and decides to change the |read_ready| and/or |write_ready| callback routines, they
+// can call this routine. Returns true if the subscription was changed, false otherwise.
+// |object| may not be NULL, |read_ready| and |write_ready| may be NULL.
+bool reactor_change_registration(reactor_object_t *object,
+    void (*read_ready)(void *context),
+    void (*write_ready)(void *context));
+
+// Unregisters a previously registered file descriptor with its reactor. |obj| may not be NULL.
+// |obj| is invalid after calling this function so the caller must drop all references to it.
+void reactor_unregister(reactor_object_t *obj);
diff --git a/rtkbt/code/bt/osi/include/ringbuffer.h b/rtkbt/code/bt/osi/include/ringbuffer.h
new file mode 100755
index 0000000..b81e742
--- /dev/null
+++ b/rtkbt/code/bt/osi/include/ringbuffer.h
@@ -0,0 +1,61 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2015 Google Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+#include <stdint.h>
+
+typedef struct ringbuffer_t ringbuffer_t;
+
+// NOTE:
+// None of the functions below are thread safe when it comes to accessing the
+// *rb pointer. It is *NOT* possible to insert and pop/delete at the same time.
+// Callers must protect the *rb pointer separately.
+
+// Create a ringbuffer with the specified size
+// Returns NULL if memory allocation failed. Resulting pointer must be freed
+// using |ringbuffer_free|.
+ringbuffer_t* ringbuffer_init(const size_t size);
+
+// Frees the ringbuffer structure and buffer
+// Save to call with NULL.
+void ringbuffer_free(ringbuffer_t *rb);
+
+// Returns remaining buffer size
+size_t ringbuffer_available(const ringbuffer_t *rb);
+
+// Returns size of data in buffer
+size_t ringbuffer_size(const ringbuffer_t *rb);
+
+// Attempts to insert up to |length| bytes of data at |p| into the buffer
+// Return actual number of bytes added. Can be less than |length| if buffer
+// is full.
+size_t ringbuffer_insert(ringbuffer_t *rb, const uint8_t *p, size_t length);
+
+// Peek |length| number of bytes from the ringbuffer, starting at |offset|,
+// into the buffer |p|. Return the actual number of bytes peeked. Can be less
+// than |length| if there is less than |length| data available. |offset| must
+// be non-negative.
+size_t ringbuffer_peek(const ringbuffer_t *rb, off_t offset, uint8_t *p, size_t length);
+
+// Does the same as |ringbuffer_peek|, but also advances the ring buffer head
+size_t ringbuffer_pop(ringbuffer_t *rb, uint8_t *p, size_t length);
+
+// Deletes |length| bytes from the ringbuffer starting from the head
+// Return actual number of bytes deleted.
+size_t ringbuffer_delete(ringbuffer_t *rb, size_t length);
diff --git a/rtkbt/code/bt/osi/include/semaphore.h b/rtkbt/code/bt/osi/include/semaphore.h
new file mode 100755
index 0000000..20932b2
--- /dev/null
+++ b/rtkbt/code/bt/osi/include/semaphore.h
@@ -0,0 +1,57 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+#include <stdbool.h>
+
+struct semaphore_t;
+typedef struct semaphore_t semaphore_t;
+
+// Creates a new semaphore with an initial value of |value|.
+// Returns NULL on failure. The returned object must be released
+// with |semaphore_free|.
+semaphore_t *semaphore_new(unsigned int value);
+
+// Frees a semaphore allocated with |semaphore_new|. |semaphore| may
+// be NULL.
+void semaphore_free(semaphore_t *semaphore);
+
+// Decrements the value of |semaphore|. If it is 0, this call blocks until
+// it becomes non-zero. |semaphore| may not be NULL.
+void semaphore_wait(semaphore_t *semaphore);
+
+// Tries to decrement the value of |semaphore|. Returns true if the value was
+// decremented, false if the value was 0. This function never blocks. |semaphore|
+// may not be NULL.
+bool semaphore_try_wait(semaphore_t *semaphore);
+
+// Increments the value of |semaphore|. |semaphore| may not be NULL.
+void semaphore_post(semaphore_t *semaphore);
+
+// Returns a file descriptor representing this semaphore. The caller may
+// only perform one operation on the file descriptor: select(2). If |select|
+// indicates the fd is readable, the caller may call |semaphore_wait|
+// without blocking. If select indicates the fd is writable, the caller may
+// call |semaphore_post| without blocking. Note that there may be a race
+// condition between calling |select| and |semaphore_wait| or |semaphore_post|
+// which results in blocking behaviour.
+//
+// The caller must not close the returned file descriptor. |semaphore| may not
+// be NULL.
+int semaphore_get_fd(const semaphore_t *semaphore);
diff --git a/rtkbt/code/bt/osi/include/socket.h b/rtkbt/code/bt/osi/include/socket.h
new file mode 100755
index 0000000..c5b2b25
--- /dev/null
+++ b/rtkbt/code/bt/osi/include/socket.h
@@ -0,0 +1,104 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <sys/types.h>
+
+typedef struct reactor_t reactor_t;
+typedef struct socket_t socket_t;
+typedef uint16_t port_t;
+
+typedef void (*socket_cb)(socket_t *socket, void *context);
+
+// Returns a new socket object. The socket is in an idle, disconnected state when
+// it is returned by this function. The returned object must be freed by calling
+// |socket_free|. Returns NULL on failure.
+socket_t *socket_new(void);
+
+// Returns a new socket object backed by |fd|. The socket object is in whichever
+// state |fd| is in when it was passed to this function. The returned object must
+// be freed by calling |socket_free|. Returns NULL on failure. If this function
+// is successful, ownership of |fd| is transferred and the caller must not close it.
+socket_t *socket_new_from_fd(int fd);
+
+// Frees a socket object created by |socket_new| or |socket_accept|. |socket| may
+// be NULL. If the socket was connected, it will be disconnected.
+void socket_free(socket_t *socket);
+
+// Puts |socket| in listening mode for incoming TCP connections on the specified
+// |port| and the loopback IPv4 address. Returns true on success, false on
+// failure (e.g. |port| is bound by another socket). |socket| may not be NULL.
+bool socket_listen(const socket_t *socket, port_t port);
+
+// Blocks on a listening socket, |socket|, until a client connects to it. Returns
+// a connected socket on success, NULL on failure. The returned object must be
+// freed by calling |socket_free|. |socket| may not be NULL.
+socket_t *socket_accept(const socket_t *socket);
+
+// Reads up to |count| bytes from |socket| into |buf|. This function will not
+// block. This function returns a positive integer representing the number
+// of bytes copied into |buf| on success, 0 if the socket has disconnected,
+// and -1 on error. This function may return a value less than |count| if not
+// enough data is currently available. If this function returns -1, errno will
+// also be set (see recv(2) for possible errno values). However, if the reading
+// system call was interrupted with errno of EINTR, the read operation is
+// restarted internally without propagating EINTR back to the caller. If there
+// were no bytes available to be read, this function returns -1 and sets errno
+// to EWOULDBLOCK. Neither |socket| nor |buf| may be NULL.
+ssize_t socket_read(const socket_t *socket, void *buf, size_t count);
+
+// Writes up to |count| bytes from |buf| into |socket|. This function will not
+// block. Returns a positive integer representing the number of bytes written
+// to |socket| on success, 0 if the socket has disconnected, and -1 on error.
+// This function may return a value less than |count| if writing more bytes
+// would result in blocking. If this function returns -1, errno will also be
+// set (see send(2) for possible errno values). However, if the writing system
+// call was interrupted with errno of EINTR, the write operation is restarted
+// internally without propagating EINTR back to the caller. If no bytes could
+// be written without blocking, this function will return -1 and set errno to
+// EWOULDBLOCK. Neither |socket| nor |buf| may be NULL.
+ssize_t socket_write(const socket_t *socket, const void *buf, size_t count);
+
+// This function performs the same write operation as |socket_write| and also
+// sends the file descriptor |fd| over the socket to a remote process. Ownership
+// of |fd| transfers to this function and the descriptor must not be used any longer.
+// If |fd| is INVALID_FD, this function behaves the same as |socket_write|.
+ssize_t socket_write_and_transfer_fd(const socket_t *socket, const void *buf, size_t count, int fd);
+
+// Returns the number of bytes that can be read from |socket| without blocking. On error,
+// this function returns -1. |socket| may not be NULL.
+//
+// Note: this function should not be part of the socket interface. It is only provided as
+//       a stop-gap until we can refactor away code that depends on a priori knowledge of
+//       the byte count. Do not use this function unless you need it while refactoring
+//       legacy bluedroid code.
+ssize_t socket_bytes_available(const socket_t *socket);
+
+// Registers |socket| with the |reactor|. When the socket becomes readable, |read_cb|
+// will be called. When the socket becomes writeable, |write_cb| will be called. The
+// |context| parameter is passed, untouched, to each of the callback routines. Neither
+// |socket| nor |reactor| may be NULL. |read_cb|, |write_cb|, and |context| may be NULL.
+void socket_register(socket_t *socket, reactor_t *reactor, void *context, socket_cb read_cb, socket_cb write_cb);
+
+// Unregisters |socket| from whichever reactor it is registered with, if any. This
+// function is idempotent.
+void socket_unregister(socket_t *socket);
diff --git a/rtkbt/code/bt/osi/include/socket_utils/socket_local.h b/rtkbt/code/bt/osi/include/socket_utils/socket_local.h
new file mode 100755
index 0000000..1471b00
--- /dev/null
+++ b/rtkbt/code/bt/osi/include/socket_utils/socket_local.h
@@ -0,0 +1,36 @@
+/*
+ * Copyright (C) 2006 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#define FILESYSTEM_SOCKET_PREFIX "/tmp/"
+#define ANDROID_RESERVED_SOCKET_PREFIX "/dev/socket/"
+
+/*
+ * Set up a given sockaddr_un, to have it refer to the given
+ * name in the given namespace. The namespace must be one
+ * of <code>ANDROID_SOCKET_NAMESPACE_ABSTRACT</code>,
+ * <code>ANDROID_SOCKET_NAMESPACE_RESERVED</code>, or
+ * <code>ANDROID_SOCKET_NAMESPACE_FILESYSTEM</code>. Upon success,
+ * the pointed at sockaddr_un is filled in and the pointed at
+ * socklen_t is set to indicate the final length. This function
+ * will fail if the namespace is invalid (not one of the indicated
+ * constants) or if the name is too long.
+ *
+ * @return 0 on success or -1 on failure
+ */
+int osi_socket_make_sockaddr_un(const char *name, int namespaceId,
+                                struct sockaddr_un *p_addr, socklen_t *alen);
diff --git a/rtkbt/code/bt/osi/include/socket_utils/sockets.h b/rtkbt/code/bt/osi/include/socket_utils/sockets.h
new file mode 100755
index 0000000..5f0ac3a
--- /dev/null
+++ b/rtkbt/code/bt/osi/include/socket_utils/sockets.h
@@ -0,0 +1,78 @@
+/*
+ * Copyright (C) 2006 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <errno.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/socket.h>
+
+#define ANDROID_SOCKET_ENV_PREFIX "ANDROID_SOCKET_"
+#define ANDROID_SOCKET_DIR "/dev/socket"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * osi_android_get_control_socket - simple helper function to get the file
+ * descriptor of our init-managed Unix domain socket. `name' is the name of the
+ * socket, as given in init.rc. Returns -1 on error.
+ *
+ * This is inline and not in libcutils proper because we want to use this in
+ * third-party daemons with minimal modification.
+ */
+static inline int osi_android_get_control_socket(const char *name) {
+  char key[64];
+  snprintf(key, sizeof(key), ANDROID_SOCKET_ENV_PREFIX "%s", name);
+
+  const char *val = getenv(key);
+  if (!val) {
+    return -1;
+  }
+
+  errno = 0;
+  int fd = strtol(val, NULL, 10);
+  if (errno) {
+    return -1;
+  }
+
+  return fd;
+}
+
+/*
+ * See also android.os.LocalSocketAddress.Namespace
+ */
+// Linux "abstract" (non-filesystem) namespace
+#define ANDROID_SOCKET_NAMESPACE_ABSTRACT 0
+// Android "reserved" (/dev/socket) namespace
+#define ANDROID_SOCKET_NAMESPACE_RESERVED 1
+// Normal filesystem namespace
+#define ANDROID_SOCKET_NAMESPACE_FILESYSTEM 2
+
+extern int osi_socket_local_server(const char *name, int namespaceId, int type);
+extern int osi_socket_local_server_bind(int s, const char *name,
+                                        int namespaceId);
+extern int osi_socket_local_client_connect(int fd, const char *name,
+                                           int namespaceId, int type);
+extern int osi_socket_local_client(const char *name, int namespaceId, int type);
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/rtkbt/code/bt/osi/include/thread.h b/rtkbt/code/bt/osi/include/thread.h
new file mode 100755
index 0000000..b77f726
--- /dev/null
+++ b/rtkbt/code/bt/osi/include/thread.h
@@ -0,0 +1,75 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+#include <stdbool.h>
+#include <stdlib.h>
+
+#define THREAD_NAME_MAX 16
+
+typedef struct reactor_t reactor_t;
+typedef struct thread_t thread_t;
+typedef void (*thread_fn)(void *context);
+
+// Creates and starts a new thread with the given name. Only THREAD_NAME_MAX
+// bytes from |name| will be assigned to the newly-created thread. Returns a
+// thread object if the thread was successfully started, NULL otherwise. The
+// returned thread object must be freed with |thread_free|. |name| may not
+// be NULL.
+thread_t *thread_new(const char *name);
+
+// Similar to |thread_new| but creates with a given queue |size|.
+thread_t *thread_new_sized(const char *name, size_t size);
+
+// Frees the given |thread|. If the thread is still running, it is stopped
+// and the calling thread will block until |thread| terminates. |thread|
+// may be NULL.
+void thread_free(thread_t *thread);
+
+// Waits for |thread_stop|. Upon returning, the only other operations a caller
+// may perform on |thread| are |thread_free| and |thread_join|. |thread_join|
+// is idempotent and may be called from any thread. |thread| may not be NULL.
+void thread_join(thread_t *thread);
+
+// Call |func| with the argument |context| on |thread|. This function typically
+// does not block unless there are an excessive number of functions posted to
+// |thread| that have not been dispatched yet. Neither |thread| nor |func| may
+// be NULL. |context| may be NULL.
+// Return true on success, otherwise false.
+bool thread_post(thread_t *thread, thread_fn func, void *context);
+
+// Requests |thread| to stop. Only |thread_free| and |thread_name| may be called
+// after calling |thread_stop|. This function is guaranteed to not block.
+// |thread| may not be NULL.
+void thread_stop(thread_t *thread);
+
+// Attempts to sets the |priority| of a given |thread|.
+// The |thread| has to be running for this call to succeed.
+// Returns true on success.
+bool thread_set_priority(thread_t *thread, int priority);
+
+// Returns true if the current thread is the same as the one represented by |thread|.
+// |thread| may not be NULL.
+bool thread_is_self(const thread_t *thread);
+
+// Returns the reactor for the given |thread|. |thread| may not be NULL.
+reactor_t *thread_get_reactor(const thread_t *thread);
+
+// Returns the name of the given |thread|. |thread| may not be NULL.
+const char *thread_name(const thread_t *thread);
diff --git a/rtkbt/code/bt/osi/include/time.h b/rtkbt/code/bt/osi/include/time.h
new file mode 100755
index 0000000..fc9a750
--- /dev/null
+++ b/rtkbt/code/bt/osi/include/time.h
@@ -0,0 +1,30 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2015 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+#include <stdint.h>
+
+// Get the OS boot time in milliseconds.
+//
+// NOTE: The return value will rollover every 49.7 days,
+// hence it cannot be used for absolute time comparison.
+// Relative time comparison using 32-bits integers such
+// as (t2_u32 - t1_u32 < delta_u32) should work as expected as long
+// as there is no multiple rollover between t2_u32 and t1_u32.
+uint32_t time_get_os_boottime_ms(void);
diff --git a/rtkbt/code/bt/osi/include/wakelock.h b/rtkbt/code/bt/osi/include/wakelock.h
new file mode 100755
index 0000000..658a205
--- /dev/null
+++ b/rtkbt/code/bt/osi/include/wakelock.h
@@ -0,0 +1,54 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2015 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+#include <stdbool.h>
+#include <hardware/bluetooth.h>
+
+// Set the Bluetooth OS callouts to |callouts|.
+// This function should be called when native kernel wakelocks are not used
+// directly. If this function is not called, or |callouts| is NULL, then native
+// kernel wakelocks will be used.
+void wakelock_set_os_callouts(bt_os_callouts_t *callouts);
+
+// Acquire the Bluetooth wakelock.
+// The function is thread safe.
+// Return true on success, otherwise false.
+bool wakelock_acquire(void);
+
+// Release the Bluetooth wakelock.
+// The function is thread safe.
+// Return true on success, otherwise false.
+bool wakelock_release(void);
+
+// Cleanup the wakelock internal state.
+// This function should be called by the OSI module cleanup during
+// graceful shutdown.
+void wakelock_cleanup(void);
+
+// This function should not need to be called normally.
+// /sys/power/wake_{|un}lock are used by default.
+// This is not guaranteed to have any effect after an alarm has been
+// set with alarm_set.
+// If |lock_path| or |unlock_path| are NULL, that path is not changed.
+void wakelock_set_paths(const char *lock_path, const char *unlock_path);
+
+// Dump wakelock-related debug info to the |fd| file descriptor.
+// The caller is responsible for closing the |fd|.
+void wakelock_debug_dump(int fd);
diff --git a/rtkbt/code/bt/osi/src/alarm.c b/rtkbt/code/bt/osi/src/alarm.c
new file mode 100755
index 0000000..1916098
--- /dev/null
+++ b/rtkbt/code/bt/osi/src/alarm.c
@@ -0,0 +1,787 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#include "include/bt_target.h"
+
+#define LOG_TAG "bt_osi_alarm"
+
+#include "osi/include/alarm.h"
+
+#include <assert.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <inttypes.h>
+#include <malloc.h>
+#include <pthread.h>
+#include <signal.h>
+#include <string.h>
+#include <time.h>
+
+#include <hardware/bluetooth.h>
+
+#include "osi/include/allocator.h"
+#include "osi/include/fixed_queue.h"
+#include "osi/include/list.h"
+#include "osi/include/log.h"
+#include "osi/include/osi.h"
+#include "osi/include/semaphore.h"
+#include "osi/include/thread.h"
+#include "osi/include/wakelock.h"
+
+// Make callbacks run at high thread priority. Some callbacks are used for audio
+// related timer tasks as well as re-transmissions etc. Since we at this point
+// cannot differentiate what callback we are dealing with, assume high priority
+// for now.
+// TODO(eisenbach): Determine correct thread priority (from parent?/per alarm?)
+static const int CALLBACK_THREAD_PRIORITY_HIGH = -19;
+
+typedef struct {
+  size_t count;
+  period_ms_t total_ms;
+  period_ms_t max_ms;
+} stat_t;
+
+// Alarm-related information and statistics
+typedef struct {
+  const char *name;
+  size_t scheduled_count;
+  size_t canceled_count;
+  size_t rescheduled_count;
+  size_t total_updates;
+  period_ms_t last_update_ms;
+  stat_t callback_execution;
+  stat_t overdue_scheduling;
+  stat_t premature_scheduling;
+} alarm_stats_t;
+
+struct alarm_t {
+  // The lock is held while the callback for this alarm is being executed.
+  // It allows us to release the coarse-grained monitor lock while a
+  // potentially long-running callback is executing. |alarm_cancel| uses this
+  // lock to provide a guarantee to its caller that the callback will not be
+  // in progress when it returns.
+  pthread_mutex_t callback_lock;
+  period_ms_t creation_time;
+  period_ms_t period;
+  period_ms_t deadline;
+  period_ms_t prev_deadline;    // Previous deadline - used for accounting of
+                                // periodic timers
+  bool is_periodic;
+  fixed_queue_t *queue;         // The processing queue to add this alarm to
+  alarm_callback_t callback;
+  void *data;
+  alarm_stats_t stats;
+};
+
+
+// If the next wakeup time is less than this threshold, we should acquire
+// a wakelock instead of setting a wake alarm so we're not bouncing in
+// and out of suspend frequently. This value is externally visible to allow
+// unit tests to run faster. It should not be modified by production code.
+int64_t TIMER_INTERVAL_FOR_WAKELOCK_IN_MS = 3000;
+static const clockid_t CLOCK_ID = CLOCK_BOOTTIME;
+
+#if defined(KERNEL_MISSING_CLOCK_BOOTTIME_ALARM) && (KERNEL_MISSING_CLOCK_BOOTTIME_ALARM == TRUE)
+static const clockid_t CLOCK_ID_ALARM = CLOCK_BOOTTIME;
+#else
+static const clockid_t CLOCK_ID_ALARM = CLOCK_BOOTTIME_ALARM;
+#endif
+
+// This mutex ensures that the |alarm_set|, |alarm_cancel|, and alarm callback
+// functions execute serially and not concurrently. As a result, this mutex
+// also protects the |alarms| list.
+static pthread_mutex_t monitor;
+#ifdef BLUETOOTH_RTK
+static list_t *alarms = NULL;
+#else
+static list_t *alarms;
+#endif
+static timer_t timer;
+static timer_t wakeup_timer;
+static bool timer_set;
+
+// All alarm callbacks are dispatched from |dispatcher_thread|
+static thread_t *dispatcher_thread;
+static bool dispatcher_thread_active;
+static semaphore_t *alarm_expired;
+
+// Default alarm callback thread and queue
+static thread_t *default_callback_thread;
+static fixed_queue_t *default_callback_queue;
+
+static alarm_t *alarm_new_internal(const char *name, bool is_periodic);
+static bool lazy_initialize(void);
+static period_ms_t now(void);
+static void alarm_set_internal(alarm_t *alarm, period_ms_t period,
+                               alarm_callback_t cb, void *data,
+                               fixed_queue_t *queue);
+static void alarm_cancel_internal(alarm_t *alarm);
+static void remove_pending_alarm(alarm_t *alarm);
+static void schedule_next_instance(alarm_t *alarm);
+static void reschedule_root_alarm(void);
+static void alarm_queue_ready(fixed_queue_t *queue, void *context);
+static void timer_callback(void *data);
+static void callback_dispatch(void *context);
+static bool timer_create_internal(const clockid_t clock_id, timer_t *timer);
+static void update_scheduling_stats(alarm_stats_t *stats,
+                                    period_ms_t now_ms,
+                                    period_ms_t deadline_ms,
+                                    period_ms_t execution_delta_ms);
+
+static void update_stat(stat_t *stat, period_ms_t delta)
+{
+  if (stat->max_ms < delta)
+    stat->max_ms = delta;
+  stat->total_ms += delta;
+  stat->count++;
+}
+
+alarm_t *alarm_new(const char *name) {
+  return alarm_new_internal(name, false);
+}
+
+alarm_t *alarm_new_periodic(const char *name) {
+  return alarm_new_internal(name, true);
+}
+
+static alarm_t *alarm_new_internal(const char *name, bool is_periodic) {
+  // Make sure we have a list we can insert alarms into.
+  if (!alarms && !lazy_initialize()) {
+    assert(false); // if initialization failed, we should not continue
+    return NULL;
+  }
+
+  pthread_mutexattr_t attr;
+  pthread_mutexattr_init(&attr);
+
+  alarm_t *ret = osi_calloc(sizeof(alarm_t));
+
+  // Make this a recursive mutex to make it safe to call |alarm_cancel| from
+  // within the callback function of the alarm.
+  int error = pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
+  if (error) {
+    LOG_ERROR(LOG_TAG, "%s unable to create a recursive mutex: %s",
+              __func__, strerror(error));
+    goto error;
+  }
+
+  error = pthread_mutex_init(&ret->callback_lock, &attr);
+  if (error) {
+    LOG_ERROR(LOG_TAG, "%s unable to initialize mutex: %s",
+              __func__, strerror(error));
+    goto error;
+  }
+
+  ret->is_periodic = is_periodic;
+
+  alarm_stats_t *stats = &ret->stats;
+  stats->name = osi_strdup(name);
+  // NOTE: The stats were reset by osi_calloc() above
+
+  pthread_mutexattr_destroy(&attr);
+  return ret;
+
+error:
+  pthread_mutexattr_destroy(&attr);
+  osi_free(ret);
+  return NULL;
+}
+
+void alarm_free(alarm_t *alarm) {
+  if (!alarm)
+    return;
+
+  alarm_cancel(alarm);
+  pthread_mutex_destroy(&alarm->callback_lock);
+  osi_free((void *)alarm->stats.name);
+  osi_free(alarm);
+}
+
+period_ms_t alarm_get_remaining_ms(const alarm_t *alarm) {
+  assert(alarm != NULL);
+  period_ms_t remaining_ms = 0;
+  period_ms_t just_now = now();
+
+  pthread_mutex_lock(&monitor);
+  if (alarm->deadline > just_now)
+    remaining_ms = alarm->deadline - just_now;
+  pthread_mutex_unlock(&monitor);
+
+  return remaining_ms;
+}
+
+void alarm_set(alarm_t *alarm, period_ms_t interval_ms,
+               alarm_callback_t cb, void *data) {
+  alarm_set_on_queue(alarm, interval_ms, cb, data, default_callback_queue);
+}
+
+void alarm_set_on_queue(alarm_t *alarm, period_ms_t interval_ms,
+                        alarm_callback_t cb, void *data,
+                        fixed_queue_t *queue) {
+  assert(queue != NULL);
+  alarm_set_internal(alarm, interval_ms, cb, data, queue);
+}
+
+// Runs in exclusion with alarm_cancel and timer_callback.
+static void alarm_set_internal(alarm_t *alarm, period_ms_t period,
+                               alarm_callback_t cb, void *data,
+                               fixed_queue_t *queue) {
+  assert(alarms != NULL);
+  assert(alarm != NULL);
+  assert(cb != NULL);
+
+  pthread_mutex_lock(&monitor);
+
+  alarm->creation_time = now();
+  alarm->period = period;
+  alarm->queue = queue;
+  alarm->callback = cb;
+  alarm->data = data;
+
+  schedule_next_instance(alarm);
+  alarm->stats.scheduled_count++;
+
+  pthread_mutex_unlock(&monitor);
+}
+
+void alarm_cancel(alarm_t *alarm) {
+  assert(alarms != NULL);
+  if (!alarm)
+    return;
+
+  pthread_mutex_lock(&monitor);
+  alarm_cancel_internal(alarm);
+  pthread_mutex_unlock(&monitor);
+
+  // If the callback for |alarm| is in progress, wait here until it completes.
+  pthread_mutex_lock(&alarm->callback_lock);
+  pthread_mutex_unlock(&alarm->callback_lock);
+}
+
+// Internal implementation of canceling an alarm.
+// The caller must hold the |monitor| lock.
+static void alarm_cancel_internal(alarm_t *alarm) {
+  bool needs_reschedule = (!list_is_empty(alarms) && list_front(alarms) == alarm);
+
+  remove_pending_alarm(alarm);
+
+  alarm->deadline = 0;
+  alarm->prev_deadline = 0;
+  alarm->callback = NULL;
+  alarm->data = NULL;
+  alarm->stats.canceled_count++;
+  alarm->queue = NULL;
+
+  if (needs_reschedule)
+    reschedule_root_alarm();
+}
+
+bool alarm_is_scheduled(const alarm_t *alarm) {
+  if ((alarms == NULL) || (alarm == NULL))
+    return false;
+  return (alarm->callback != NULL);
+}
+
+void alarm_cleanup(void) {
+  // If lazy_initialize never ran there is nothing else to do
+  if (!alarms)
+    return;
+
+  dispatcher_thread_active = false;
+  semaphore_post(alarm_expired);
+  thread_free(dispatcher_thread);
+  dispatcher_thread = NULL;
+
+  pthread_mutex_lock(&monitor);
+
+  fixed_queue_free(default_callback_queue, NULL);
+  default_callback_queue = NULL;
+  thread_free(default_callback_thread);
+  default_callback_thread = NULL;
+
+  timer_delete(wakeup_timer);
+  timer_delete(timer);
+  semaphore_free(alarm_expired);
+  alarm_expired = NULL;
+
+  list_free(alarms);
+  alarms = NULL;
+
+  pthread_mutex_unlock(&monitor);
+  pthread_mutex_destroy(&monitor);
+}
+
+static bool lazy_initialize(void) {
+  assert(alarms == NULL);
+
+  // timer_t doesn't have an invalid value so we must track whether
+  // the |timer| variable is valid ourselves.
+  bool timer_initialized = false;
+  bool wakeup_timer_initialized = false;
+
+  pthread_mutex_init(&monitor, NULL);
+
+  alarms = list_new(NULL);
+  if (!alarms) {
+    LOG_ERROR(LOG_TAG, "%s unable to allocate alarm list.", __func__);
+    goto error;
+  }
+
+  if (!timer_create_internal(CLOCK_ID, &timer))
+    goto error;
+  timer_initialized = true;
+
+  if (!timer_create_internal(CLOCK_ID_ALARM, &wakeup_timer))
+    goto error;
+  wakeup_timer_initialized = true;
+
+  alarm_expired = semaphore_new(0);
+  if (!alarm_expired) {
+    LOG_ERROR(LOG_TAG, "%s unable to create alarm expired semaphore", __func__);
+    goto error;
+  }
+
+  default_callback_thread = thread_new_sized("alarm_default_callbacks",
+                                             SIZE_MAX);
+  if (default_callback_thread == NULL) {
+    LOG_ERROR(LOG_TAG, "%s unable to create default alarm callbacks thread.",
+              __func__);
+    goto error;
+  }
+  thread_set_priority(default_callback_thread, CALLBACK_THREAD_PRIORITY_HIGH);
+  default_callback_queue = fixed_queue_new(SIZE_MAX);
+  if (default_callback_queue == NULL) {
+    LOG_ERROR(LOG_TAG, "%s unable to create default alarm callbacks queue.",
+              __func__);
+    goto error;
+  }
+  alarm_register_processing_queue(default_callback_queue,
+                                  default_callback_thread);
+
+  dispatcher_thread_active = true;
+  dispatcher_thread = thread_new("alarm_dispatcher");
+  if (!dispatcher_thread) {
+    LOG_ERROR(LOG_TAG, "%s unable to create alarm callback thread.", __func__);
+    goto error;
+  }
+
+  thread_set_priority(dispatcher_thread, CALLBACK_THREAD_PRIORITY_HIGH);
+  thread_post(dispatcher_thread, callback_dispatch, NULL);
+  return true;
+
+error:
+  fixed_queue_free(default_callback_queue, NULL);
+  default_callback_queue = NULL;
+  thread_free(default_callback_thread);
+  default_callback_thread = NULL;
+
+  thread_free(dispatcher_thread);
+  dispatcher_thread = NULL;
+
+  dispatcher_thread_active = false;
+
+  semaphore_free(alarm_expired);
+  alarm_expired = NULL;
+
+  if (wakeup_timer_initialized)
+    timer_delete(wakeup_timer);
+
+  if (timer_initialized)
+    timer_delete(timer);
+
+  list_free(alarms);
+  alarms = NULL;
+
+  pthread_mutex_destroy(&monitor);
+
+  return false;
+}
+
+static period_ms_t now(void) {
+  assert(alarms != NULL);
+
+  struct timespec ts;
+  if (clock_gettime(CLOCK_ID, &ts) == -1) {
+    LOG_ERROR(LOG_TAG, "%s unable to get current time: %s",
+              __func__, strerror(errno));
+    return 0;
+  }
+
+  return (ts.tv_sec * 1000LL) + (ts.tv_nsec / 1000000LL);
+}
+
+// Remove alarm from internal alarm list and the processing queue
+// The caller must hold the |monitor| lock.
+static void remove_pending_alarm(alarm_t *alarm) {
+  list_remove(alarms, alarm);
+  while (fixed_queue_try_remove_from_queue(alarm->queue, alarm) != NULL) {
+    // Remove all repeated alarm instances from the queue.
+    // NOTE: We are defensive here - we shouldn't have repeated alarm instances
+  }
+}
+
+// Must be called with monitor held
+static void schedule_next_instance(alarm_t *alarm) {
+  // If the alarm is currently set and it's at the start of the list,
+  // we'll need to re-schedule since we've adjusted the earliest deadline.
+  bool needs_reschedule = (!list_is_empty(alarms) && list_front(alarms) == alarm);
+  if (alarm->callback)
+    remove_pending_alarm(alarm);
+
+  // Calculate the next deadline for this alarm
+  period_ms_t just_now = now();
+  period_ms_t ms_into_period = 0;
+  if ((alarm->is_periodic) && (alarm->period != 0))
+    ms_into_period = ((just_now - alarm->creation_time) % alarm->period);
+  alarm->deadline = just_now + (alarm->period - ms_into_period);
+
+  // Add it into the timer list sorted by deadline (earliest deadline first).
+  if (list_is_empty(alarms) ||
+      ((alarm_t *)list_front(alarms))->deadline > alarm->deadline) {
+    list_prepend(alarms, alarm);
+  } else {
+    for (list_node_t *node = list_begin(alarms); node != list_end(alarms); node = list_next(node)) {
+      list_node_t *next = list_next(node);
+      if (next == list_end(alarms) || ((alarm_t *)list_node(next))->deadline > alarm->deadline) {
+        list_insert_after(alarms, node, alarm);
+        break;
+      }
+    }
+  }
+
+  // If the new alarm has the earliest deadline, we need to re-evaluate our schedule.
+  if (needs_reschedule ||
+      (!list_is_empty(alarms) && list_front(alarms) == alarm)) {
+    reschedule_root_alarm();
+  }
+}
+
+// NOTE: must be called with monitor lock.
+static void reschedule_root_alarm(void) {
+  assert(alarms != NULL);
+
+  const bool timer_was_set = timer_set;
+
+  // If used in a zeroed state, disarms the timer.
+  struct itimerspec timer_time;
+  memset(&timer_time, 0, sizeof(timer_time));
+
+  if (list_is_empty(alarms))
+    goto done;
+
+  const alarm_t *next = list_front(alarms);
+  const int64_t next_expiration = next->deadline - now();
+  if (next_expiration < TIMER_INTERVAL_FOR_WAKELOCK_IN_MS) {
+    if (!timer_set) {
+      if (!wakelock_acquire()) {
+        LOG_ERROR(LOG_TAG, "%s unable to acquire wake lock", __func__);
+        goto done;
+      }
+    }
+
+    timer_time.it_value.tv_sec = (next->deadline / 1000);
+    timer_time.it_value.tv_nsec = (next->deadline % 1000) * 1000000LL;
+
+    // It is entirely unsafe to call timer_settime(2) with a zeroed timerspec
+    // for timers with *_ALARM clock IDs. Although the man page states that the
+    // timer would be canceled, the current behavior (as of Linux kernel 3.17)
+    // is that the callback is issued immediately. The only way to cancel an
+    // *_ALARM timer is to delete the timer. But unfortunately, deleting and
+    // re-creating a timer is rather expensive; every timer_create(2) spawns a
+    // new thread. So we simply set the timer to fire at the largest possible
+    // time.
+    //
+    // If we've reached this code path, we're going to grab a wake lock and
+    // wait for the next timer to fire. In that case, there's no reason to
+    // have a pending wakeup timer so we simply cancel it.
+    struct itimerspec end_of_time;
+    memset(&end_of_time, 0, sizeof(end_of_time));
+    end_of_time.it_value.tv_sec = (time_t)(1LL << (sizeof(time_t) * 8 - 2));
+    timer_settime(wakeup_timer, TIMER_ABSTIME, &end_of_time, NULL);
+  } else {
+    // WARNING: do not attempt to use relative timers with *_ALARM clock IDs
+    // in kernels before 3.17 unless you have the following patch:
+    // https://lkml.org/lkml/2014/7/7/576
+    struct itimerspec wakeup_time;
+    memset(&wakeup_time, 0, sizeof(wakeup_time));
+
+
+    wakeup_time.it_value.tv_sec = (next->deadline / 1000);
+    wakeup_time.it_value.tv_nsec = (next->deadline % 1000) * 1000000LL;
+    if (timer_settime(wakeup_timer, TIMER_ABSTIME, &wakeup_time, NULL) == -1)
+      LOG_ERROR(LOG_TAG, "%s unable to set wakeup timer: %s",
+                __func__, strerror(errno));
+  }
+
+done:
+  timer_set = timer_time.it_value.tv_sec != 0 || timer_time.it_value.tv_nsec != 0;
+  if (timer_was_set && !timer_set) {
+    wakelock_release();
+  }
+
+  if (timer_settime(timer, TIMER_ABSTIME, &timer_time, NULL) == -1)
+    LOG_ERROR(LOG_TAG, "%s unable to set timer: %s", __func__, strerror(errno));
+
+  // If next expiration was in the past (e.g. short timer that got context
+  // switched) then the timer might have diarmed itself. Detect this case and
+  // work around it by manually signalling the |alarm_expired| semaphore.
+  //
+  // It is possible that the timer was actually super short (a few
+  // milliseconds) and the timer expired normally before we called
+  // |timer_gettime|. Worst case, |alarm_expired| is signaled twice for that
+  // alarm. Nothing bad should happen in that case though since the callback
+  // dispatch function checks to make sure the timer at the head of the list
+  // actually expired.
+  if (timer_set) {
+    struct itimerspec time_to_expire;
+    timer_gettime(timer, &time_to_expire);
+    if (time_to_expire.it_value.tv_sec == 0 &&
+        time_to_expire.it_value.tv_nsec == 0) {
+      LOG_DEBUG(LOG_TAG, "%s alarm expiration too close for posix timers, switching to guns", __func__);
+      semaphore_post(alarm_expired);
+    }
+  }
+}
+
+void alarm_register_processing_queue(fixed_queue_t *queue, thread_t *thread) {
+  assert(queue != NULL);
+  assert(thread != NULL);
+
+  fixed_queue_register_dequeue(queue, thread_get_reactor(thread),
+                               alarm_queue_ready, NULL);
+}
+
+void alarm_unregister_processing_queue(fixed_queue_t *queue) {
+  assert(alarms != NULL);
+  assert(queue != NULL);
+
+  fixed_queue_unregister_dequeue(queue);
+
+  // Cancel all alarms that are using this queue
+  pthread_mutex_lock(&monitor);
+  for (list_node_t *node = list_begin(alarms); node != list_end(alarms); ) {
+    alarm_t *alarm = (alarm_t *)list_node(node);
+    node = list_next(node);
+    // TODO: Each module is responsible for tearing down its alarms; currently,
+    // this is not the case. In the future, this check should be replaced by
+    // an assert.
+    if (alarm->queue == queue)
+      alarm_cancel_internal(alarm);
+  }
+  pthread_mutex_unlock(&monitor);
+}
+
+static void alarm_queue_ready(fixed_queue_t *queue,
+                              UNUSED_ATTR void *context) {
+  assert(queue != NULL);
+
+  pthread_mutex_lock(&monitor);
+  alarm_t *alarm = (alarm_t *)fixed_queue_try_dequeue(queue);
+  if (alarm == NULL) {
+    pthread_mutex_unlock(&monitor);
+    return;             // The alarm was probably canceled
+  }
+
+  //
+  // If the alarm is not periodic, we've fully serviced it now, and can reset
+  // some of its internal state. This is useful to distinguish between expired
+  // alarms and active ones.
+  //
+  alarm_callback_t callback = alarm->callback;
+  void *data = alarm->data;
+  period_ms_t deadline = alarm->deadline;
+  if (alarm->is_periodic) {
+    // The periodic alarm has been rescheduled and alarm->deadline has been
+    // updated, hence we need to use the previous deadline.
+    deadline = alarm->prev_deadline;
+  } else {
+    alarm->deadline = 0;
+    alarm->callback = NULL;
+    alarm->data = NULL;
+  }
+
+  pthread_mutex_lock(&alarm->callback_lock);
+  pthread_mutex_unlock(&monitor);
+
+  period_ms_t t0 = now();
+  callback(data);
+  period_ms_t t1 = now();
+
+  // Update the statistics
+  assert(t1 >= t0);
+  period_ms_t delta = t1 - t0;
+  update_scheduling_stats(&alarm->stats, t0, deadline, delta);
+
+  pthread_mutex_unlock(&alarm->callback_lock);
+}
+
+// Callback function for wake alarms and our posix timer
+static void timer_callback(UNUSED_ATTR void *ptr) {
+  semaphore_post(alarm_expired);
+}
+
+// Function running on |dispatcher_thread| that performs the following:
+//   (1) Receives a signal using |alarm_exired| that the alarm has expired
+//   (2) Dispatches the alarm callback for processing by the corresponding
+// thread for that alarm.
+static void callback_dispatch(UNUSED_ATTR void *context) {
+  while (true) {
+    semaphore_wait(alarm_expired);
+    if (!dispatcher_thread_active)
+      break;
+
+    pthread_mutex_lock(&monitor);
+    alarm_t *alarm;
+
+    // Take into account that the alarm may get cancelled before we get to it.
+    // We're done here if there are no alarms or the alarm at the front is in
+    // the future. Release the monitor lock and exit right away since there's
+    // nothing left to do.
+    if (list_is_empty(alarms) ||
+        (alarm = list_front(alarms))->deadline > now()) {
+      reschedule_root_alarm();
+      pthread_mutex_unlock(&monitor);
+      continue;
+    }
+
+    list_remove(alarms, alarm);
+
+    if (alarm->is_periodic) {
+      alarm->prev_deadline = alarm->deadline;
+      schedule_next_instance(alarm);
+      alarm->stats.rescheduled_count++;
+    }
+    reschedule_root_alarm();
+
+    // Enqueue the alarm for processing
+    fixed_queue_enqueue(alarm->queue, alarm);
+
+    pthread_mutex_unlock(&monitor);
+  }
+
+  LOG_DEBUG(LOG_TAG, "%s Callback thread exited", __func__);
+}
+
+static bool timer_create_internal(const clockid_t clock_id, timer_t *timer) {
+  assert(timer != NULL);
+
+  struct sigevent sigevent;
+  memset(&sigevent, 0, sizeof(sigevent));
+  sigevent.sigev_notify = SIGEV_THREAD;
+  sigevent.sigev_notify_function = (void (*)(union sigval))timer_callback;
+  if (timer_create(clock_id, &sigevent, timer) == -1) {
+    LOG_ERROR(LOG_TAG, "%s unable to create timer with clock %d: %s",
+              __func__, clock_id, strerror(errno));
+    if (clock_id == CLOCK_BOOTTIME_ALARM) {
+      LOG_ERROR(LOG_TAG, "The kernel might not have support for timer_create(CLOCK_BOOTTIME_ALARM): https://lwn.net/Articles/429925/");
+      LOG_ERROR(LOG_TAG, "See following patches: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/log/?qt=grep&q=CLOCK_BOOTTIME_ALARM");
+    }
+    return false;
+  }
+
+  return true;
+}
+
+static void update_scheduling_stats(alarm_stats_t *stats,
+                                    period_ms_t now_ms,
+                                    period_ms_t deadline_ms,
+                                    period_ms_t execution_delta_ms)
+{
+  stats->total_updates++;
+  stats->last_update_ms = now_ms;
+
+  update_stat(&stats->callback_execution, execution_delta_ms);
+
+  if (deadline_ms < now_ms) {
+    // Overdue scheduling
+    period_ms_t delta_ms = now_ms - deadline_ms;
+    update_stat(&stats->overdue_scheduling, delta_ms);
+  } else if (deadline_ms > now_ms) {
+    // Premature scheduling
+    period_ms_t delta_ms = deadline_ms - now_ms;
+    update_stat(&stats->premature_scheduling, delta_ms);
+  }
+}
+
+static void dump_stat(int fd, stat_t *stat, const char *description)
+{
+    period_ms_t average_time_ms = 0;
+    if (stat->count != 0)
+      average_time_ms = stat->total_ms / stat->count;
+
+    dprintf(fd, "%-51s: %llu / %llu / %llu\n",
+            description,
+            (unsigned long long)stat->total_ms,
+            (unsigned long long)stat->max_ms,
+            (unsigned long long)average_time_ms);
+}
+
+void alarm_debug_dump(int fd)
+{
+  dprintf(fd, "\nBluetooth Alarms Statistics:\n");
+
+  pthread_mutex_lock(&monitor);
+
+  if (alarms == NULL) {
+    pthread_mutex_unlock(&monitor);
+    dprintf(fd, "  None\n");
+    return;
+  }
+
+  period_ms_t just_now = now();
+
+  dprintf(fd, "  Total Alarms: %zu\n\n", list_length(alarms));
+
+  // Dump info for each alarm
+  for (list_node_t *node = list_begin(alarms); node != list_end(alarms);
+       node = list_next(node)) {
+    alarm_t *alarm = (alarm_t *)list_node(node);
+    alarm_stats_t *stats = &alarm->stats;
+
+    dprintf(fd, "  Alarm : %s (%s)\n", stats->name,
+            (alarm->is_periodic) ? "PERIODIC" : "SINGLE");
+
+    dprintf(fd, "%-51s: %zu / %zu / %zu / %zu\n",
+            "    Action counts (sched/resched/exec/cancel)",
+            stats->scheduled_count, stats->rescheduled_count,
+            stats->callback_execution.count, stats->canceled_count);
+
+    dprintf(fd, "%-51s: %zu / %zu\n",
+            "    Deviation counts (overdue/premature)",
+            stats->overdue_scheduling.count,
+            stats->premature_scheduling.count);
+
+    dprintf(fd, "%-51s: %llu / %llu / %lld\n",
+            "    Time in ms (since creation/interval/remaining)",
+            (unsigned long long)(just_now - alarm->creation_time),
+            (unsigned long long) alarm->period,
+            (long long)(alarm->deadline - just_now));
+
+    dump_stat(fd, &stats->callback_execution,
+              "    Callback execution time in ms (total/max/avg)");
+
+    dump_stat(fd, &stats->overdue_scheduling,
+              "    Overdue scheduling time in ms (total/max/avg)");
+
+    dump_stat(fd, &stats->premature_scheduling,
+              "    Premature scheduling time in ms (total/max/avg)");
+
+    dprintf(fd, "\n");
+  }
+  pthread_mutex_unlock(&monitor);
+}
diff --git a/rtkbt/code/bt/osi/src/allocation_tracker.c b/rtkbt/code/bt/osi/src/allocation_tracker.c
new file mode 100755
index 0000000..b4e1a84
--- /dev/null
+++ b/rtkbt/code/bt/osi/src/allocation_tracker.c
@@ -0,0 +1,196 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_osi_allocation_tracker"
+
+#include "osi/include/allocation_tracker.h"
+
+#include <assert.h>
+#include <pthread.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "osi/include/allocator.h"
+#include "osi/include/hash_functions.h"
+#include "osi/include/hash_map.h"
+#include "osi/include/log.h"
+#include "osi/include/osi.h"
+
+typedef struct {
+  uint8_t allocator_id;
+  void *ptr;
+  size_t size;
+  bool freed;
+} allocation_t;
+
+// Hidden constructor for hash map for our use only. Everything else should use the
+// normal interface.
+hash_map_t *hash_map_new_internal(
+    size_t size,
+    hash_index_fn hash_fn,
+    key_free_fn key_fn,
+    data_free_fn,
+    key_equality_fn equality_fn,
+    const allocator_t *zeroed_allocator);
+
+static bool allocation_entry_freed_checker(hash_map_entry_t *entry, void *context);
+static void *untracked_calloc(size_t size);
+
+static const size_t allocation_hash_map_size = 1024;
+static const char *canary = "tinybird";
+static const allocator_t untracked_calloc_allocator = {
+  untracked_calloc,
+  free
+};
+
+static size_t canary_size;
+static hash_map_t *allocations;
+static pthread_mutex_t lock;
+
+void allocation_tracker_init(void) {
+  if (allocations)
+    return;
+
+  canary_size = strlen(canary);
+
+  pthread_mutex_init(&lock, NULL);
+
+  pthread_mutex_lock(&lock);
+  allocations = hash_map_new_internal(
+    allocation_hash_map_size,
+    hash_function_pointer,
+    NULL,
+    free,
+    NULL,
+    &untracked_calloc_allocator);
+  pthread_mutex_unlock(&lock);
+}
+
+// Test function only. Do not call in the normal course of operations.
+void allocation_tracker_uninit(void) {
+  if (!allocations)
+    return;
+
+  pthread_mutex_lock(&lock);
+  hash_map_free(allocations);
+  allocations = NULL;
+  pthread_mutex_unlock(&lock);
+}
+
+void allocation_tracker_reset(void) {
+  if (!allocations)
+    return;
+
+  pthread_mutex_lock(&lock);
+  hash_map_clear(allocations);
+  pthread_mutex_unlock(&lock);
+}
+
+size_t allocation_tracker_expect_no_allocations(void) {
+  if (!allocations)
+    return 0;
+
+  pthread_mutex_lock(&lock);
+
+  size_t unfreed_memory_size = 0;
+  hash_map_foreach(allocations, allocation_entry_freed_checker, &unfreed_memory_size);
+
+  pthread_mutex_unlock(&lock);
+
+  return unfreed_memory_size;
+}
+
+void *allocation_tracker_notify_alloc(uint8_t allocator_id, void *ptr, size_t requested_size) {
+  if (!allocations || !ptr)
+    return ptr;
+
+  char *return_ptr = (char *)ptr;
+
+  return_ptr += canary_size;
+
+  pthread_mutex_lock(&lock);
+
+  allocation_t *allocation = (allocation_t *)hash_map_get(allocations, return_ptr);
+  if (allocation) {
+    assert(allocation->freed); // Must have been freed before
+  } else {
+    allocation = (allocation_t *)calloc(1, sizeof(allocation_t));
+    hash_map_set(allocations, return_ptr, allocation);
+  }
+
+  allocation->allocator_id = allocator_id;
+  allocation->freed = false;
+  allocation->size = requested_size;
+  allocation->ptr = return_ptr;
+
+  pthread_mutex_unlock(&lock);
+
+  // Add the canary on both sides
+  memcpy(return_ptr - canary_size, canary, canary_size);
+  memcpy(return_ptr + requested_size, canary, canary_size);
+
+  return return_ptr;
+}
+
+void *allocation_tracker_notify_free(UNUSED_ATTR uint8_t allocator_id, void *ptr) {
+  if (!allocations || !ptr)
+    return ptr;
+
+  pthread_mutex_lock(&lock);
+
+  allocation_t *allocation = (allocation_t *)hash_map_get(allocations, ptr);
+  assert(allocation);                               // Must have been tracked before
+  assert(!allocation->freed);                       // Must not be a double free
+  assert(allocation->allocator_id == allocator_id); // Must be from the same allocator
+  allocation->freed = true;
+
+  UNUSED_ATTR const char *beginning_canary = ((char *)ptr) - canary_size;
+  UNUSED_ATTR const char *end_canary = ((char *)ptr) + allocation->size;
+
+  for (size_t i = 0; i < canary_size; i++) {
+    assert(beginning_canary[i] == canary[i]);
+    assert(end_canary[i] == canary[i]);
+  }
+
+  // Free the hash map entry to avoid unlimited memory usage growth.
+  // Double-free of memory is detected with "assert(allocation)" above
+  // as the allocation entry will not be present.
+  hash_map_erase(allocations, ptr);
+
+  pthread_mutex_unlock(&lock);
+
+  return ((char *)ptr) - canary_size;
+}
+
+size_t allocation_tracker_resize_for_canary(size_t size) {
+  return (!allocations) ? size : size + (2 * canary_size);
+}
+
+static bool allocation_entry_freed_checker(hash_map_entry_t *entry, void *context) {
+  allocation_t *allocation = (allocation_t *)entry->data;
+  if (!allocation->freed) {
+    *((size_t *)context) += allocation->size; // Report back the unfreed byte count
+    LOG_ERROR(LOG_TAG, "%s found unfreed allocation. address: 0x%zx size: %zd bytes", __func__, (uintptr_t)allocation->ptr, allocation->size);
+  }
+
+  return true;
+}
+
+static void *untracked_calloc(size_t size) {
+  return calloc(size, 1);
+}
diff --git a/rtkbt/code/bt/osi/src/allocator.c b/rtkbt/code/bt/osi/src/allocator.c
new file mode 100755
index 0000000..3d821a8
--- /dev/null
+++ b/rtkbt/code/bt/osi/src/allocator.c
@@ -0,0 +1,98 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+#include <assert.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "osi/include/allocator.h"
+#include "osi/include/allocation_tracker.h"
+
+static const allocator_id_t alloc_allocator_id = 42;
+
+char *osi_strdup(const char *str) {
+  size_t size = strlen(str) + 1;  // + 1 for the null terminator
+  size_t real_size = allocation_tracker_resize_for_canary(size);
+  void *ptr = malloc(real_size);
+  assert(ptr);
+
+  char *new_string = allocation_tracker_notify_alloc(
+      alloc_allocator_id,
+      ptr,
+      size);
+  if (!new_string)
+    return NULL;
+
+  memcpy(new_string, str, size);
+  return new_string;
+}
+
+char *osi_strndup(const char *str, size_t len) {
+  size_t size = strlen(str);
+  if (len < size)
+    size = len;
+
+  size_t real_size = allocation_tracker_resize_for_canary(size + 1);
+  void *ptr = malloc(real_size);
+  assert(ptr);
+
+  char *new_string = allocation_tracker_notify_alloc(
+      alloc_allocator_id,
+      ptr,
+      size + 1);
+  if (!new_string)
+    return NULL;
+
+  memcpy(new_string, str, size);
+  new_string[size] = '\0';
+  return new_string;
+}
+
+void *osi_malloc(size_t size) {
+  size_t real_size = allocation_tracker_resize_for_canary(size);
+  void *ptr = malloc(real_size);
+  assert(ptr);
+  return allocation_tracker_notify_alloc(alloc_allocator_id, ptr, size);
+}
+
+void *osi_calloc(size_t size) {
+  size_t real_size = allocation_tracker_resize_for_canary(size);
+  void *ptr = calloc(1, real_size);
+  assert(ptr);
+  return allocation_tracker_notify_alloc(alloc_allocator_id, ptr, size);
+}
+
+void osi_free(void *ptr) {
+  free(allocation_tracker_notify_free(alloc_allocator_id, ptr));
+}
+
+void osi_free_and_reset(void **p_ptr)
+{
+  assert(p_ptr != NULL);
+  osi_free(*p_ptr);
+  *p_ptr = NULL;
+}
+
+const allocator_t allocator_calloc = {
+  osi_calloc,
+  osi_free
+};
+
+const allocator_t allocator_malloc = {
+  osi_malloc,
+  osi_free
+};
diff --git a/rtkbt/code/bt/osi/src/array.c b/rtkbt/code/bt/osi/src/array.c
new file mode 100755
index 0000000..0baa9bb
--- /dev/null
+++ b/rtkbt/code/bt/osi/src/array.c
@@ -0,0 +1,110 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_osi_array"
+
+#include "osi/include/array.h"
+
+#include <assert.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "osi/include/allocator.h"
+#include "osi/include/log.h"
+
+struct array_t {
+  size_t element_size;
+  size_t length;
+  size_t capacity;
+  uint8_t *data;
+  uint8_t internal_storage[];
+};
+
+static bool grow(array_t *array);
+
+static const size_t INTERNAL_ELEMENTS = 16;
+
+array_t *array_new(size_t element_size) {
+  assert(element_size > 0);
+
+  array_t *array = osi_calloc(sizeof(array_t) + element_size * INTERNAL_ELEMENTS);
+
+  array->element_size = element_size;
+  array->capacity = INTERNAL_ELEMENTS;
+  array->data = array->internal_storage;
+  return array;
+}
+
+void array_free(array_t *array) {
+  if (!array)
+    return;
+
+  if (array->data != array->internal_storage)
+    free(array->data);
+
+  osi_free(array);
+}
+
+void *array_ptr(const array_t *array) {
+  return array_at(array, 0);
+}
+
+void *array_at(const array_t *array, size_t index) {
+  assert(array != NULL);
+  assert(index < array->length);
+  return array->data + (index * array->element_size);
+}
+
+size_t array_length(const array_t *array) {
+  assert(array != NULL);
+  return array->length;
+}
+
+bool array_append_value(array_t *array, uint32_t value) {
+  return array_append_ptr(array, &value);
+}
+
+bool array_append_ptr(array_t *array, void *data) {
+  assert(array != NULL);
+  assert(data != NULL);
+
+  if (array->length == array->capacity && !grow(array)) {
+    LOG_ERROR(LOG_TAG, "%s unable to grow array past current capacity of %zu elements of size %zu.", __func__, array->capacity, array->element_size);
+    return false;
+  }
+
+  ++array->length;
+  memcpy(array_at(array, array->length - 1), data, array->element_size);
+  return true;
+}
+
+static bool grow(array_t *array) {
+  const size_t new_capacity = array->capacity + (array->capacity / 2);
+  const bool is_moving = (array->data == array->internal_storage);
+
+  void *new_data = realloc(is_moving ? NULL : array->data, new_capacity * array->element_size);
+  if (!new_data)
+    return false;
+
+  if (is_moving)
+    memcpy(new_data, array->internal_storage, array->length * array->element_size);
+
+  array->data = new_data;
+  array->capacity = new_capacity;
+  return true;
+}
diff --git a/rtkbt/code/bt/osi/src/buffer.c b/rtkbt/code/bt/osi/src/buffer.c
new file mode 100755
index 0000000..54129fb
--- /dev/null
+++ b/rtkbt/code/bt/osi/src/buffer.c
@@ -0,0 +1,92 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_osi_buffer"
+
+#include "osi/include/buffer.h"
+
+#include <assert.h>
+#include <stdint.h>
+
+#include "osi/include/allocator.h"
+#include "osi/include/log.h"
+
+struct buffer_t {
+  buffer_t *root;
+  size_t refcount;
+  size_t length;
+  uint8_t data[];
+};
+
+buffer_t *buffer_new(size_t size) {
+  assert(size > 0);
+
+  buffer_t *buffer = osi_calloc(sizeof(buffer_t) + size);
+
+  buffer->root = buffer;
+  buffer->refcount = 1;
+  buffer->length = size;
+
+  return buffer;
+}
+
+buffer_t *buffer_new_ref(const buffer_t *buf) {
+  assert(buf != NULL);
+  return buffer_new_slice(buf, buf->length);
+}
+
+buffer_t *buffer_new_slice(const buffer_t *buf, size_t slice_size) {
+  assert(buf != NULL);
+  assert(slice_size > 0);
+  assert(slice_size <= buf->length);
+
+  buffer_t *ret = osi_calloc(sizeof(buffer_t));
+
+  ret->root = buf->root;
+  ret->refcount = SIZE_MAX;
+  ret->length = slice_size;
+
+  ++buf->root->refcount;
+
+  return ret;
+}
+
+void buffer_free(buffer_t *buffer) {
+  if (!buffer)
+    return;
+
+  if (buffer->root != buffer) {
+    // We're a leaf node. Delete the root node if we're the last referent.
+    if (--buffer->root->refcount == 0)
+      osi_free(buffer->root);
+    osi_free(buffer);
+  } else if (--buffer->refcount == 0) {
+    // We're a root node. Roots are only deleted when their refcount goes to 0.
+    osi_free(buffer);
+  }
+}
+
+void *buffer_ptr(const buffer_t *buf) {
+  assert(buf != NULL);
+  return buf->root->data + buf->root->length - buf->length;
+}
+
+size_t buffer_length(const buffer_t *buf) {
+  assert(buf != NULL);
+  return buf->length;
+}
diff --git a/rtkbt/code/bt/osi/src/compat.c b/rtkbt/code/bt/osi/src/compat.c
new file mode 100755
index 0000000..7540349
--- /dev/null
+++ b/rtkbt/code/bt/osi/src/compat.c
@@ -0,0 +1,133 @@
+/******************************************************************************
+ *
+ *  Copyright 2015 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/************************************************************************************
+ *
+ *  Filename:      compat.c
+ *
+ *  Description:   Compatibility functions for non-bionic C libraries
+ *
+ *
+ ***********************************************************************************/
+
+#include <features.h>
+#include <string.h>
+#include <sys/syscall.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include "osi/include/compat.h"
+#include "osi/include/osi.h"
+
+#if __GLIBC__
+pid_t
+gettid(void)
+{
+  return syscall(SYS_gettid);
+}
+#endif
+
+/* These functions from bionic
+ *
+ * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#if __GLIBC__
+/*
+ * Copy src to string dst of size siz.  At most siz-1 characters
+ * will be copied.  Always NUL terminates (unless siz == 0).
+ * Returns strlen(src); if retval >= siz, truncation occurred.
+ */
+size_t
+strlcpy(char *dst, const char *src, size_t siz)
+{
+  char *d = dst;
+  const char *s = src;
+  size_t n = siz;
+
+  /* Copy as many bytes as will fit */
+  if (n != 0) {
+    while (--n != 0) {
+      if ((*d++ = *s++) == '\0')
+        break;
+    }
+  }
+
+  /* Not enough room in dst, add NUL and traverse rest of src */
+  if (n == 0) {
+    if (siz != 0)
+      *d = '\0'; /* NUL-terminate dst */
+    while (*s++)
+      ;
+  }
+
+  return(s - src - 1); /* count does not include NUL */
+}
+#endif
+
+#if __GLIBC__
+/*
+ * Appends src to string dst of size siz (unlike strncat, siz is the
+ * full size of dst, not space left).  At most siz-1 characters
+ * will be copied.  Always NUL terminates (unless siz <= strlen(dst)).
+ * Returns strlen(src) + MIN(siz, strlen(initial dst)).
+ * If retval >= siz, truncation occurred.
+ */
+size_t
+strlcat(char *dst, const char *src, size_t siz)
+{
+  char *d = dst;
+  const char *s = src;
+  size_t n = siz;
+  size_t dlen;
+
+  /* Find the end of dst and adjust bytes left but don't go past end */
+  while (n-- != 0 && *d != '\0')
+    d++;
+  dlen = d - dst;
+  n = siz - dlen;
+
+  if (n == 0)
+    return (dlen + strlen(s));
+
+  while (*s != '\0') {
+    if (n != 1) {
+      *d++ = *s;
+      n--;
+    }
+
+    s++;
+  }
+
+  *d = '\0';
+
+  return (dlen + (s - src)); /* count does not include NUL */
+}
+#endif
diff --git a/rtkbt/code/bt/osi/src/config.c b/rtkbt/code/bt/osi/src/config.c
new file mode 100755
index 0000000..345f907
--- /dev/null
+++ b/rtkbt/code/bt/osi/src/config.c
@@ -0,0 +1,506 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_osi_config"
+
+#include "osi/include/config.h"
+
+#include <assert.h>
+#include <ctype.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <libgen.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/stat.h>
+
+#include "osi/include/allocator.h"
+#include "osi/include/list.h"
+#include "osi/include/log.h"
+
+typedef struct {
+  char *key;
+  char *value;
+} entry_t;
+
+typedef struct {
+  char *name;
+  list_t *entries;
+} section_t;
+
+struct config_t {
+  list_t *sections;
+};
+
+// Empty definition; this type is aliased to list_node_t.
+struct config_section_iter_t {};
+
+static bool config_parse(FILE *fp, config_t *config);
+
+static section_t *section_new(const char *name);
+static void section_free(void *ptr);
+static section_t *section_find(const config_t *config, const char *section);
+
+static entry_t *entry_new(const char *key, const char *value);
+static void entry_free(void *ptr);
+static entry_t *entry_find(const config_t *config, const char *section, const char *key);
+
+config_t *config_new_empty(void) {
+  config_t *config = osi_calloc(sizeof(config_t));
+
+  config->sections = list_new(section_free);
+  if (!config->sections) {
+    LOG_ERROR(LOG_TAG, "%s unable to allocate list for sections.", __func__);
+    goto error;
+  }
+
+  return config;
+
+error:;
+  config_free(config);
+  return NULL;
+}
+
+config_t *config_new(const char *filename) {
+  assert(filename != NULL);
+
+  config_t *config = config_new_empty();
+  if (!config)
+    return NULL;
+
+  FILE *fp = fopen(filename, "rt");
+  if (!fp) {
+    LOG_ERROR(LOG_TAG, "%s unable to open file '%s': %s", __func__, filename, strerror(errno));
+    config_free(config);
+    return NULL;
+  }
+
+  if (!config_parse(fp, config)) {
+    config_free(config);
+    config = NULL;
+  }
+
+  fclose(fp);
+  return config;
+}
+
+config_t *config_new_clone(const config_t *src) {
+  assert(src != NULL);
+
+  config_t *ret = config_new_empty();
+
+  assert(ret != NULL);
+
+  for (const list_node_t *node = list_begin(src->sections);
+       node != list_end(src->sections);
+       node = list_next(node)) {
+    section_t *sec = list_node(node);
+
+    for (const list_node_t *node_entry = list_begin(sec->entries);
+         node_entry != list_end(sec->entries);
+         node_entry = list_next(node_entry)) {
+      entry_t *entry = list_node(node_entry);
+
+      config_set_string(ret, sec->name, entry->key, entry->value);
+    }
+  }
+
+  return ret;
+}
+
+void config_free(config_t *config) {
+  if (!config)
+    return;
+
+  list_free(config->sections);
+  osi_free(config);
+}
+
+bool config_has_section(const config_t *config, const char *section) {
+  assert(config != NULL);
+  assert(section != NULL);
+
+  return (section_find(config, section) != NULL);
+}
+
+bool config_has_key(const config_t *config, const char *section, const char *key) {
+  assert(config != NULL);
+  assert(section != NULL);
+  assert(key != NULL);
+
+  return (entry_find(config, section, key) != NULL);
+}
+
+int config_get_int(const config_t *config, const char *section, const char *key, int def_value) {
+  assert(config != NULL);
+  assert(section != NULL);
+  assert(key != NULL);
+
+  entry_t *entry = entry_find(config, section, key);
+  if (!entry)
+    return def_value;
+
+  char *endptr;
+  int ret = strtol(entry->value, &endptr, 0);
+  return (*endptr == '\0') ? ret : def_value;
+}
+
+bool config_get_bool(const config_t *config, const char *section, const char *key, bool def_value) {
+  assert(config != NULL);
+  assert(section != NULL);
+  assert(key != NULL);
+
+  entry_t *entry = entry_find(config, section, key);
+  if (!entry)
+    return def_value;
+
+  if (!strcmp(entry->value, "true"))
+    return true;
+  if (!strcmp(entry->value, "false"))
+    return false;
+
+  return def_value;
+}
+
+const char *config_get_string(const config_t *config, const char *section, const char *key, const char *def_value) {
+  assert(config != NULL);
+  assert(section != NULL);
+  assert(key != NULL);
+
+  entry_t *entry = entry_find(config, section, key);
+  if (!entry)
+    return def_value;
+
+  return entry->value;
+}
+
+void config_set_int(config_t *config, const char *section, const char *key, int value) {
+  assert(config != NULL);
+  assert(section != NULL);
+  assert(key != NULL);
+
+  char value_str[32] = { 0 };
+  sprintf(value_str, "%d", value);
+  config_set_string(config, section, key, value_str);
+}
+
+void config_set_bool(config_t *config, const char *section, const char *key, bool value) {
+  assert(config != NULL);
+  assert(section != NULL);
+  assert(key != NULL);
+
+  config_set_string(config, section, key, value ? "true" : "false");
+}
+
+void config_set_string(config_t *config, const char *section, const char *key, const char *value) {
+  section_t *sec = section_find(config, section);
+  if (!sec) {
+    sec = section_new(section);
+    list_append(config->sections, sec);
+  }
+
+  for (const list_node_t *node = list_begin(sec->entries); node != list_end(sec->entries); node = list_next(node)) {
+    entry_t *entry = list_node(node);
+    if (!strcmp(entry->key, key)) {
+      osi_free(entry->value);
+      entry->value = osi_strdup(value);
+      return;
+    }
+  }
+
+  entry_t *entry = entry_new(key, value);
+  list_append(sec->entries, entry);
+}
+
+bool config_remove_section(config_t *config, const char *section) {
+  assert(config != NULL);
+  assert(section != NULL);
+
+  section_t *sec = section_find(config, section);
+  if (!sec)
+    return false;
+
+  return list_remove(config->sections, sec);
+}
+
+bool config_remove_key(config_t *config, const char *section, const char *key) {
+  assert(config != NULL);
+  assert(section != NULL);
+  assert(key != NULL);
+
+  section_t *sec = section_find(config, section);
+  entry_t *entry = entry_find(config, section, key);
+  if (!sec || !entry)
+    return false;
+
+  return list_remove(sec->entries, entry);
+}
+
+const config_section_node_t *config_section_begin(const config_t *config) {
+  assert(config != NULL);
+  return (const config_section_node_t *)list_begin(config->sections);
+}
+
+const config_section_node_t *config_section_end(const config_t *config) {
+  assert(config != NULL);
+  return (const config_section_node_t *)list_end(config->sections);
+}
+
+const config_section_node_t *config_section_next(const config_section_node_t *node) {
+  assert(node != NULL);
+  return (const config_section_node_t *)list_next((const list_node_t *)node);
+}
+
+const char *config_section_name(const config_section_node_t *node) {
+  assert(node != NULL);
+  const list_node_t *lnode = (const list_node_t *)node;
+  const section_t *section = (const section_t *)list_node(lnode);
+  return section->name;
+}
+
+bool config_save(const config_t *config, const char *filename) {
+  assert(config != NULL);
+  assert(filename != NULL);
+  assert(*filename != '\0');
+
+  // Steps to ensure content of config file gets to disk:
+  //
+  // 1) Open and write to temp file (e.g. bt_config.conf.new).
+  // 2) Sync the temp file to disk with fsync().
+  // 3) Rename temp file to actual config file (e.g. bt_config.conf).
+  //    This ensures atomic update.
+  // 4) Sync directory that has the conf file with fsync().
+  //    This ensures directory entries are up-to-date.
+  int dir_fd = -1;
+  FILE *fp = NULL;
+
+  // Build temp config file based on config file (e.g. bt_config.conf.new).
+  static const char *temp_file_ext = ".new";
+  const int filename_len = strlen(filename);
+  const int temp_filename_len = filename_len + strlen(temp_file_ext) + 1;
+  char *temp_filename = osi_calloc(temp_filename_len);
+  snprintf(temp_filename, temp_filename_len, "%s%s", filename, temp_file_ext);
+
+  // Extract directory from file path (e.g. /data/misc/bluedroid).
+  char *temp_dirname = osi_strdup(filename);
+  const char *directoryname = dirname(temp_dirname);
+  if (!directoryname) {
+    LOG_ERROR(LOG_TAG, "%s error extracting directory from '%s': %s", __func__, filename, strerror(errno));
+    goto error;
+  }
+
+  dir_fd = open(directoryname, O_RDONLY);
+  if (dir_fd < 0) {
+    LOG_ERROR(LOG_TAG, "%s unable to open dir '%s': %s", __func__, directoryname, strerror(errno));
+    goto error;
+  }
+
+  fp = fopen(temp_filename, "wt");
+  if (!fp) {
+    LOG_ERROR(LOG_TAG, "%s unable to write file '%s': %s", __func__, temp_filename, strerror(errno));
+    goto error;
+  }
+
+  for (const list_node_t *node = list_begin(config->sections); node != list_end(config->sections); node = list_next(node)) {
+    const section_t *section = (const section_t *)list_node(node);
+    if (fprintf(fp, "[%s]\n", section->name) < 0) {
+      LOG_ERROR(LOG_TAG, "%s unable to write to file '%s': %s", __func__, temp_filename, strerror(errno));
+      goto error;
+    }
+
+    for (const list_node_t *enode = list_begin(section->entries); enode != list_end(section->entries); enode = list_next(enode)) {
+      const entry_t *entry = (const entry_t *)list_node(enode);
+      if (fprintf(fp, "%s = %s\n", entry->key, entry->value) < 0) {
+        LOG_ERROR(LOG_TAG, "%s unable to write to file '%s': %s", __func__, temp_filename, strerror(errno));
+        goto error;
+      }
+    }
+
+    // Only add a separating newline if there are more sections.
+    if (list_next(node) != list_end(config->sections)) {
+      if (fputc('\n', fp) == EOF) {
+        LOG_ERROR(LOG_TAG, "%s unable to write to file '%s': %s", __func__, temp_filename, strerror(errno));
+        goto error;
+      }
+    }
+  }
+
+  // Sync written temp file out to disk. fsync() is blocking until data makes it to disk.
+  if (fsync(fileno(fp)) < 0) {
+    LOG_WARN(LOG_TAG, "%s unable to fsync file '%s': %s", __func__, temp_filename, strerror(errno));
+  }
+
+  if (fclose(fp) == EOF) {
+    LOG_ERROR(LOG_TAG, "%s unable to close file '%s': %s", __func__, temp_filename, strerror(errno));
+    goto error;
+  }
+  fp = NULL;
+
+  // Change the file's permissions to Read/Write by User and Group
+  if (chmod(temp_filename, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP) == -1) {
+    LOG_ERROR(LOG_TAG, "%s unable to change file permissions '%s': %s", __func__, filename, strerror(errno));
+    goto error;
+  }
+
+  // Rename written temp file to the actual config file.
+  if (rename(temp_filename, filename) == -1) {
+    LOG_ERROR(LOG_TAG, "%s unable to commit file '%s': %s", __func__, filename, strerror(errno));
+    goto error;
+  }
+
+  // This should ensure the directory is updated as well.
+  if (fsync(dir_fd) < 0) {
+    LOG_WARN(LOG_TAG, "%s unable to fsync dir '%s': %s", __func__, directoryname, strerror(errno));
+  }
+
+  if (close(dir_fd) < 0) {
+    LOG_ERROR(LOG_TAG, "%s unable to close dir '%s': %s", __func__, directoryname, strerror(errno));
+    goto error;
+  }
+
+  osi_free(temp_filename);
+  osi_free(temp_dirname);
+  return true;
+
+error:
+  // This indicates there is a write issue.  Unlink as partial data is not acceptable.
+  unlink(temp_filename);
+  if (fp)
+    fclose(fp);
+  if (dir_fd != -1)
+    close(dir_fd);
+  osi_free(temp_filename);
+  osi_free(temp_dirname);
+  return false;
+}
+
+static char *trim(char *str) {
+  while (isspace(*str))
+    ++str;
+
+  if (!*str)
+    return str;
+
+  char *end_str = str + strlen(str) - 1;
+  while (end_str > str && isspace(*end_str))
+    --end_str;
+
+  end_str[1] = '\0';
+  return str;
+}
+
+static bool config_parse(FILE *fp, config_t *config) {
+  assert(fp != NULL);
+  assert(config != NULL);
+
+  int line_num = 0;
+  char line[1024];
+  char section[1024];
+  strcpy(section, CONFIG_DEFAULT_SECTION);
+
+  while (fgets(line, sizeof(line), fp)) {
+    char *line_ptr = trim(line);
+    ++line_num;
+
+    // Skip blank and comment lines.
+    if (*line_ptr == '\0' || *line_ptr == '#')
+      continue;
+
+    if (*line_ptr == '[') {
+      size_t len = strlen(line_ptr);
+      if (line_ptr[len - 1] != ']') {
+        LOG_DEBUG(LOG_TAG, "%s unterminated section name on line %d.", __func__, line_num);
+        return false;
+      }
+      strncpy(section, line_ptr + 1, len - 2);
+      section[len - 2] = '\0';
+    } else {
+      char *split = strchr(line_ptr, '=');
+      if (!split) {
+        LOG_DEBUG(LOG_TAG, "%s no key/value separator found on line %d.", __func__, line_num);
+        return false;
+      }
+
+      *split = '\0';
+      config_set_string(config, section, trim(line_ptr), trim(split + 1));
+    }
+  }
+  return true;
+}
+
+static section_t *section_new(const char *name) {
+  section_t *section = osi_calloc(sizeof(section_t));
+
+  section->name = osi_strdup(name);
+  section->entries = list_new(entry_free);
+  return section;
+}
+
+static void section_free(void *ptr) {
+  if (!ptr)
+    return;
+
+  section_t *section = ptr;
+  osi_free(section->name);
+  list_free(section->entries);
+  osi_free(section);
+}
+
+static section_t *section_find(const config_t *config, const char *section) {
+  for (const list_node_t *node = list_begin(config->sections); node != list_end(config->sections); node = list_next(node)) {
+    section_t *sec = list_node(node);
+    if (!strcmp(sec->name, section))
+      return sec;
+  }
+
+  return NULL;
+}
+
+static entry_t *entry_new(const char *key, const char *value) {
+  entry_t *entry = osi_calloc(sizeof(entry_t));
+
+  entry->key = osi_strdup(key);
+  entry->value = osi_strdup(value);
+  return entry;
+}
+
+static void entry_free(void *ptr) {
+  if (!ptr)
+    return;
+
+  entry_t *entry = ptr;
+  osi_free(entry->key);
+  osi_free(entry->value);
+  osi_free(entry);
+}
+
+static entry_t *entry_find(const config_t *config, const char *section, const char *key) {
+  section_t *sec = section_find(config, section);
+  if (!sec)
+    return NULL;
+
+  for (const list_node_t *node = list_begin(sec->entries); node != list_end(sec->entries); node = list_next(node)) {
+    entry_t *entry = list_node(node);
+    if (!strcmp(entry->key, key))
+      return entry;
+  }
+
+  return NULL;
+}
diff --git a/rtkbt/code/bt/osi/src/data_dispatcher.c b/rtkbt/code/bt/osi/src/data_dispatcher.c
new file mode 100755
index 0000000..1537f3a
--- /dev/null
+++ b/rtkbt/code/bt/osi/src/data_dispatcher.c
@@ -0,0 +1,100 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_osi_data_dispatcher"
+
+#include "osi/include/data_dispatcher.h"
+
+#include <assert.h>
+
+#include "osi/include/allocator.h"
+#include "osi/include/hash_functions.h"
+#include "osi/include/hash_map.h"
+#include "osi/include/osi.h"
+#include "osi/include/log.h"
+
+#define DEFAULT_TABLE_BUCKETS 10
+
+struct data_dispatcher_t {
+  char *name;
+  hash_map_t *dispatch_table;
+  fixed_queue_t *default_queue; // We don't own this queue
+};
+
+data_dispatcher_t *data_dispatcher_new(const char *name) {
+  assert(name != NULL);
+
+  data_dispatcher_t *ret = osi_calloc(sizeof(data_dispatcher_t));
+
+  ret->dispatch_table = hash_map_new(DEFAULT_TABLE_BUCKETS, hash_function_naive, NULL, NULL, NULL);
+  if (!ret->dispatch_table) {
+    LOG_ERROR(LOG_TAG, "%s unable to create dispatch table.", __func__);
+    goto error;
+  }
+
+  ret->name = osi_strdup(name);
+  if (!ret->name) {
+    LOG_ERROR(LOG_TAG, "%s unable to duplicate provided name.", __func__);
+    goto error;
+  }
+
+  return ret;
+
+error:;
+  data_dispatcher_free(ret);
+  return NULL;
+}
+
+void data_dispatcher_free(data_dispatcher_t *dispatcher) {
+  if (!dispatcher)
+    return;
+
+  hash_map_free(dispatcher->dispatch_table);
+  osi_free(dispatcher->name);
+  osi_free(dispatcher);
+}
+
+void data_dispatcher_register(data_dispatcher_t *dispatcher, data_dispatcher_type_t type, fixed_queue_t *queue) {
+  assert(dispatcher != NULL);
+
+  hash_map_erase(dispatcher->dispatch_table, (void *)type);
+  if (queue)
+    hash_map_set(dispatcher->dispatch_table, (void *)type, queue);
+}
+
+void data_dispatcher_register_default(data_dispatcher_t *dispatcher, fixed_queue_t *queue) {
+  assert(dispatcher != NULL);
+
+  dispatcher->default_queue = queue;
+}
+
+bool data_dispatcher_dispatch(data_dispatcher_t *dispatcher, data_dispatcher_type_t type, void *data) {
+  assert(dispatcher != NULL);
+  assert(data != NULL);
+
+  fixed_queue_t *queue = hash_map_get(dispatcher->dispatch_table, (void *)type);
+  if (!queue)
+    queue = dispatcher->default_queue;
+
+  if (queue)
+    fixed_queue_enqueue(queue, data);
+  else
+    LOG_WARN(LOG_TAG, "%s has no handler for type (%zd) in data dispatcher named: %s", __func__, type, dispatcher->name);
+
+  return queue != NULL;
+}
diff --git a/rtkbt/code/bt/osi/src/eager_reader.c b/rtkbt/code/bt/osi/src/eager_reader.c
new file mode 100755
index 0000000..07a944c
--- /dev/null
+++ b/rtkbt/code/bt/osi/src/eager_reader.c
@@ -0,0 +1,276 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_osi_eager_reader"
+
+#include "osi/include/eager_reader.h"
+
+#include <assert.h>
+#include <errno.h>
+#include <string.h>
+#include <sys/eventfd.h>
+#include <unistd.h>
+
+#include "osi/include/fixed_queue.h"
+#include "osi/include/log.h"
+#include "osi/include/osi.h"
+#include "osi/include/reactor.h"
+
+#if !defined(EFD_SEMAPHORE)
+#  define EFD_SEMAPHORE (1 << 0)
+#endif
+
+typedef struct {
+  size_t length;
+  size_t offset;
+  uint8_t data[];
+} data_buffer_t;
+
+struct eager_reader_t {
+  int bytes_available_fd; // semaphore mode eventfd which counts the number of available bytes
+  int inbound_fd;
+
+  const allocator_t *allocator;
+  size_t buffer_size;
+  fixed_queue_t *buffers;
+  data_buffer_t *current_buffer;
+
+  thread_t *inbound_read_thread;
+  reactor_object_t *inbound_read_object;
+
+  reactor_object_t *outbound_registration;
+  eager_reader_cb outbound_read_ready;
+  void *outbound_context;
+};
+
+static bool has_byte(const eager_reader_t *reader);
+static void inbound_data_waiting(void *context);
+static void internal_outbound_read_ready(void *context);
+
+eager_reader_t *eager_reader_new(
+    int fd_to_read,
+    const allocator_t *allocator,
+    size_t buffer_size,
+    size_t max_buffer_count,
+    const char *thread_name) {
+
+  assert(fd_to_read != INVALID_FD);
+  assert(allocator != NULL);
+  assert(buffer_size > 0);
+  assert(max_buffer_count > 0);
+  assert(thread_name != NULL && *thread_name != '\0');
+
+  eager_reader_t *ret = osi_calloc(sizeof(eager_reader_t));
+
+  ret->allocator = allocator;
+  ret->inbound_fd = fd_to_read;
+
+  ret->bytes_available_fd = eventfd(0, 0);
+  if (ret->bytes_available_fd == INVALID_FD) {
+    LOG_ERROR(LOG_TAG, "%s unable to create output reading semaphore.", __func__);
+    goto error;
+  }
+
+  ret->buffer_size = buffer_size;
+
+  ret->buffers = fixed_queue_new(max_buffer_count);
+  if (!ret->buffers) {
+    LOG_ERROR(LOG_TAG, "%s unable to create buffers queue.", __func__);
+    goto error;
+  }
+
+  ret->inbound_read_thread = thread_new(thread_name);
+  if (!ret->inbound_read_thread) {
+    LOG_ERROR(LOG_TAG, "%s unable to make reading thread.", __func__);
+    goto error;
+  }
+
+  ret->inbound_read_object = reactor_register(
+    thread_get_reactor(ret->inbound_read_thread),
+    fd_to_read,
+    ret,
+    inbound_data_waiting,
+    NULL
+  );
+
+  return ret;
+
+error:;
+  eager_reader_free(ret);
+  return NULL;
+}
+
+void eager_reader_free(eager_reader_t *reader) {
+  if (!reader)
+    return;
+
+  eager_reader_unregister(reader);
+
+  // Only unregister from the input if we actually did register
+  if (reader->inbound_read_object)
+    reactor_unregister(reader->inbound_read_object);
+
+  if (reader->bytes_available_fd != INVALID_FD)
+    close(reader->bytes_available_fd);
+
+  // Free the current buffer, because it's not in the queue
+  // and won't be freed below
+  if (reader->current_buffer)
+    reader->allocator->free(reader->current_buffer);
+
+  fixed_queue_free(reader->buffers, reader->allocator->free);
+  thread_free(reader->inbound_read_thread);
+  osi_free(reader);
+}
+
+void eager_reader_register(eager_reader_t *reader, reactor_t *reactor, eager_reader_cb read_cb, void *context) {
+  assert(reader != NULL);
+  assert(reactor != NULL);
+  assert(read_cb != NULL);
+
+  // Make sure the reader isn't currently registered.
+  eager_reader_unregister(reader);
+
+  reader->outbound_read_ready = read_cb;
+  reader->outbound_context = context;
+  reader->outbound_registration = reactor_register(reactor, reader->bytes_available_fd, reader, internal_outbound_read_ready, NULL);
+}
+
+void eager_reader_unregister(eager_reader_t *reader) {
+  assert(reader != NULL);
+
+  if (reader->outbound_registration) {
+    reactor_unregister(reader->outbound_registration);
+    reader->outbound_registration = NULL;
+  }
+}
+
+// SEE HEADER FOR THREAD SAFETY NOTE
+size_t eager_reader_read(eager_reader_t *reader, uint8_t *buffer, size_t max_size) {
+  assert(reader != NULL);
+  assert(buffer != NULL);
+
+  // Poll to see if we have any bytes available before reading.
+  if (!has_byte(reader))
+    return 0;
+
+  // Find out how many bytes we have available in our various buffers.
+  eventfd_t bytes_available;
+  if (eventfd_read(reader->bytes_available_fd, &bytes_available) == -1) {
+    LOG_ERROR(LOG_TAG, "%s unable to read semaphore for output data.", __func__);
+    return 0;
+  }
+
+  if (max_size > bytes_available)
+    max_size = bytes_available;
+
+  size_t bytes_consumed = 0;
+  while (bytes_consumed < max_size) {
+    if (!reader->current_buffer)
+      reader->current_buffer = fixed_queue_dequeue(reader->buffers);
+
+    size_t bytes_to_copy = reader->current_buffer->length - reader->current_buffer->offset;
+    if (bytes_to_copy > (max_size - bytes_consumed))
+      bytes_to_copy = max_size - bytes_consumed;
+
+    memcpy(&buffer[bytes_consumed], &reader->current_buffer->data[reader->current_buffer->offset], bytes_to_copy);
+    bytes_consumed += bytes_to_copy;
+    reader->current_buffer->offset += bytes_to_copy;
+
+    if (reader->current_buffer->offset >= reader->current_buffer->length) {
+      reader->allocator->free(reader->current_buffer);
+      reader->current_buffer = NULL;
+    }
+  }
+
+  bytes_available -= bytes_consumed;
+  if (eventfd_write(reader->bytes_available_fd, bytes_available) == -1) {
+    LOG_ERROR(LOG_TAG, "%s unable to write back bytes available for output data.", __func__);
+  }
+
+  return bytes_consumed;
+}
+
+thread_t* eager_reader_get_read_thread(const eager_reader_t *reader) {
+  assert(reader != NULL);
+  return reader->inbound_read_thread;
+}
+
+static bool has_byte(const eager_reader_t *reader) {
+  assert(reader != NULL);
+
+  fd_set read_fds;
+
+  for (;;) {
+    FD_ZERO(&read_fds);
+    FD_SET(reader->bytes_available_fd, &read_fds);
+
+    // Immediate timeout
+    struct timeval timeout;
+    timeout.tv_sec = 0;
+    timeout.tv_usec = 0;
+
+    int ret = select(reader->bytes_available_fd + 1, &read_fds, NULL, NULL,
+                     &timeout);
+    if (ret == -1 && errno == EINTR)
+      continue;
+    break;
+  }
+
+  return FD_ISSET(reader->bytes_available_fd, &read_fds);
+}
+
+static void inbound_data_waiting(void *context) {
+  eager_reader_t *reader = (eager_reader_t *)context;
+
+  data_buffer_t *buffer = (data_buffer_t *)reader->allocator->alloc(reader->buffer_size + sizeof(data_buffer_t));
+  if (!buffer) {
+    LOG_ERROR(LOG_TAG, "%s couldn't aquire memory for inbound data buffer.", __func__);
+    return;
+  }
+
+  buffer->length = 0;
+  buffer->offset = 0;
+
+  ssize_t bytes_read;
+  OSI_NO_INTR(bytes_read = read(reader->inbound_fd, buffer->data,
+                                reader->buffer_size));
+  if (bytes_read > 0) {
+    // Save the data for later
+    buffer->length = bytes_read;
+    fixed_queue_enqueue(reader->buffers, buffer);
+
+    // Tell consumers data is available by incrementing
+    // the semaphore by the number of bytes we just read
+    eventfd_write(reader->bytes_available_fd, bytes_read);
+  } else {
+    if (bytes_read == 0)
+      LOG_WARN(LOG_TAG, "%s fd said bytes existed, but none were found.", __func__);
+    else
+      LOG_WARN(LOG_TAG, "%s unable to read from file descriptor: %s", __func__, strerror(errno));
+
+    reader->allocator->free(buffer);
+  }
+}
+
+static void internal_outbound_read_ready(void *context) {
+  assert(context != NULL);
+
+  eager_reader_t *reader = (eager_reader_t *)context;
+  reader->outbound_read_ready(reader, reader->outbound_context);
+}
diff --git a/rtkbt/code/bt/osi/src/fixed_queue.c b/rtkbt/code/bt/osi/src/fixed_queue.c
new file mode 100755
index 0000000..be4f292
--- /dev/null
+++ b/rtkbt/code/bt/osi/src/fixed_queue.c
@@ -0,0 +1,268 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#include <assert.h>
+#include <pthread.h>
+#include <string.h>
+
+#include "osi/include/allocator.h"
+#include "osi/include/fixed_queue.h"
+#include "osi/include/list.h"
+#include "osi/include/osi.h"
+#include "osi/include/semaphore.h"
+#include "osi/include/reactor.h"
+
+typedef struct fixed_queue_t {
+  list_t *list;
+  semaphore_t *enqueue_sem;
+  semaphore_t *dequeue_sem;
+  pthread_mutex_t lock;
+  size_t capacity;
+
+  reactor_object_t *dequeue_object;
+  fixed_queue_cb dequeue_ready;
+  void *dequeue_context;
+} fixed_queue_t;
+
+static void internal_dequeue_ready(void *context);
+
+fixed_queue_t *fixed_queue_new(size_t capacity) {
+  fixed_queue_t *ret = osi_calloc(sizeof(fixed_queue_t));
+
+  pthread_mutex_init(&ret->lock, NULL);
+  ret->capacity = capacity;
+
+  ret->list = list_new(NULL);
+  if (!ret->list)
+    goto error;
+
+  ret->enqueue_sem = semaphore_new(capacity);
+  if (!ret->enqueue_sem)
+    goto error;
+
+  ret->dequeue_sem = semaphore_new(0);
+  if (!ret->dequeue_sem)
+    goto error;
+
+  return ret;
+
+error:
+  fixed_queue_free(ret, NULL);
+  return NULL;
+}
+
+void fixed_queue_free(fixed_queue_t *queue, fixed_queue_free_cb free_cb) {
+  if (!queue)
+    return;
+
+  fixed_queue_unregister_dequeue(queue);
+
+  if (free_cb)
+    for (const list_node_t *node = list_begin(queue->list); node != list_end(queue->list); node = list_next(node))
+      free_cb(list_node(node));
+
+  list_free(queue->list);
+  semaphore_free(queue->enqueue_sem);
+  semaphore_free(queue->dequeue_sem);
+  pthread_mutex_destroy(&queue->lock);
+  osi_free(queue);
+}
+
+bool fixed_queue_is_empty(fixed_queue_t *queue) {
+  if (queue == NULL)
+    return true;
+
+  pthread_mutex_lock(&queue->lock);
+  bool is_empty = list_is_empty(queue->list);
+  pthread_mutex_unlock(&queue->lock);
+
+  return is_empty;
+}
+
+size_t fixed_queue_length(fixed_queue_t *queue) {
+  if (queue == NULL)
+    return 0;
+
+  pthread_mutex_lock(&queue->lock);
+  size_t length = list_length(queue->list);
+  pthread_mutex_unlock(&queue->lock);
+
+  return length;
+}
+
+size_t fixed_queue_capacity(fixed_queue_t *queue) {
+  assert(queue != NULL);
+
+  return queue->capacity;
+}
+
+void fixed_queue_enqueue(fixed_queue_t *queue, void *data) {
+  assert(queue != NULL);
+  assert(data != NULL);
+
+  semaphore_wait(queue->enqueue_sem);
+
+  pthread_mutex_lock(&queue->lock);
+  list_append(queue->list, data);
+  pthread_mutex_unlock(&queue->lock);
+
+  semaphore_post(queue->dequeue_sem);
+}
+
+void *fixed_queue_dequeue(fixed_queue_t *queue) {
+  assert(queue != NULL);
+
+  semaphore_wait(queue->dequeue_sem);
+
+  pthread_mutex_lock(&queue->lock);
+  void *ret = list_front(queue->list);
+  list_remove(queue->list, ret);
+  pthread_mutex_unlock(&queue->lock);
+
+  semaphore_post(queue->enqueue_sem);
+
+  return ret;
+}
+
+bool fixed_queue_try_enqueue(fixed_queue_t *queue, void *data) {
+  assert(queue != NULL);
+  assert(data != NULL);
+
+  if (!semaphore_try_wait(queue->enqueue_sem))
+    return false;
+
+  pthread_mutex_lock(&queue->lock);
+  list_append(queue->list, data);
+  pthread_mutex_unlock(&queue->lock);
+
+  semaphore_post(queue->dequeue_sem);
+  return true;
+}
+
+void *fixed_queue_try_dequeue(fixed_queue_t *queue) {
+  if (queue == NULL)
+    return NULL;
+
+  if (!semaphore_try_wait(queue->dequeue_sem))
+    return NULL;
+
+  pthread_mutex_lock(&queue->lock);
+  void *ret = list_front(queue->list);
+  list_remove(queue->list, ret);
+  pthread_mutex_unlock(&queue->lock);
+
+  semaphore_post(queue->enqueue_sem);
+
+  return ret;
+}
+
+void *fixed_queue_try_peek_first(fixed_queue_t *queue) {
+  if (queue == NULL)
+    return NULL;
+
+  pthread_mutex_lock(&queue->lock);
+  void *ret = list_is_empty(queue->list) ? NULL : list_front(queue->list);
+  pthread_mutex_unlock(&queue->lock);
+
+  return ret;
+}
+
+void *fixed_queue_try_peek_last(fixed_queue_t *queue) {
+  if (queue == NULL)
+    return NULL;
+
+  pthread_mutex_lock(&queue->lock);
+  void *ret = list_is_empty(queue->list) ? NULL : list_back(queue->list);
+  pthread_mutex_unlock(&queue->lock);
+
+  return ret;
+}
+
+void *fixed_queue_try_remove_from_queue(fixed_queue_t *queue, void *data) {
+  if (queue == NULL)
+    return NULL;
+
+  bool removed = false;
+  pthread_mutex_lock(&queue->lock);
+  if (list_contains(queue->list, data) &&
+      semaphore_try_wait(queue->dequeue_sem)) {
+    removed = list_remove(queue->list, data);
+    assert(removed);
+  }
+  pthread_mutex_unlock(&queue->lock);
+
+  if (removed) {
+    semaphore_post(queue->enqueue_sem);
+    return data;
+  }
+  return NULL;
+}
+
+list_t *fixed_queue_get_list(fixed_queue_t *queue) {
+  assert(queue != NULL);
+
+  // NOTE: This function is not thread safe, and there is no point for
+  // calling pthread_mutex_lock() / pthread_mutex_unlock()
+  return queue->list;
+}
+
+
+int fixed_queue_get_dequeue_fd(const fixed_queue_t *queue) {
+  assert(queue != NULL);
+  return semaphore_get_fd(queue->dequeue_sem);
+}
+
+int fixed_queue_get_enqueue_fd(const fixed_queue_t *queue) {
+  assert(queue != NULL);
+  return semaphore_get_fd(queue->enqueue_sem);
+}
+
+void fixed_queue_register_dequeue(fixed_queue_t *queue, reactor_t *reactor, fixed_queue_cb ready_cb, void *context) {
+  assert(queue != NULL);
+  assert(reactor != NULL);
+  assert(ready_cb != NULL);
+
+  // Make sure we're not already registered
+  fixed_queue_unregister_dequeue(queue);
+
+  queue->dequeue_ready = ready_cb;
+  queue->dequeue_context = context;
+  queue->dequeue_object = reactor_register(
+    reactor,
+    fixed_queue_get_dequeue_fd(queue),
+    queue,
+    internal_dequeue_ready,
+    NULL
+  );
+}
+
+void fixed_queue_unregister_dequeue(fixed_queue_t *queue) {
+  assert(queue != NULL);
+
+  if (queue->dequeue_object) {
+    reactor_unregister(queue->dequeue_object);
+    queue->dequeue_object = NULL;
+  }
+}
+
+static void internal_dequeue_ready(void *context) {
+  assert(context != NULL);
+
+  fixed_queue_t *queue = context;
+  queue->dequeue_ready(queue, queue->dequeue_context);
+}
diff --git a/rtkbt/code/bt/osi/src/future.c b/rtkbt/code/bt/osi/src/future.c
new file mode 100755
index 0000000..cf720c5
--- /dev/null
+++ b/rtkbt/code/bt/osi/src/future.c
@@ -0,0 +1,89 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_osi_future"
+
+#include "osi/include/future.h"
+
+#include <assert.h>
+
+#include "osi/include/allocator.h"
+#include "osi/include/log.h"
+#include "osi/include/osi.h"
+#include "osi/include/semaphore.h"
+
+struct future_t {
+  bool ready_can_be_called;
+  semaphore_t *semaphore; // NULL semaphore means immediate future
+  void *result;
+};
+
+static void future_free(future_t *future);
+
+future_t *future_new(void) {
+  future_t *ret = osi_calloc(sizeof(future_t));
+
+  ret->semaphore = semaphore_new(0);
+  if (!ret->semaphore) {
+    LOG_ERROR(LOG_TAG, "%s unable to allocate memory for the semaphore.", __func__);
+    goto error;
+  }
+
+  ret->ready_can_be_called = true;
+  return ret;
+error:;
+  future_free(ret);
+  return NULL;
+}
+
+future_t *future_new_immediate(void *value) {
+  future_t *ret = osi_calloc(sizeof(future_t));
+
+  ret->result = value;
+  ret->ready_can_be_called = false;
+  return ret;
+}
+
+void future_ready(future_t *future, void *value) {
+  assert(future != NULL);
+  assert(future->ready_can_be_called);
+
+  future->ready_can_be_called = false;
+  future->result = value;
+  semaphore_post(future->semaphore);
+}
+
+void *future_await(future_t *future) {
+  assert(future != NULL);
+
+  // If the future is immediate, it will not have a semaphore
+  if (future->semaphore)
+    semaphore_wait(future->semaphore);
+
+  void *result = future->result;
+  future_free(future);
+  return result;
+}
+
+static void future_free(future_t *future) {
+  if (!future)
+    return;
+
+  semaphore_free(future->semaphore);
+  osi_free(future);
+}
diff --git a/rtkbt/code/bt/osi/src/hash_functions.c b/rtkbt/code/bt/osi/src/hash_functions.c
new file mode 100755
index 0000000..e7e7cef
--- /dev/null
+++ b/rtkbt/code/bt/osi/src/hash_functions.c
@@ -0,0 +1,42 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#include <string.h>
+
+#include "osi/include/hash_functions.h"
+
+hash_index_t hash_function_naive(const void *key) {
+  return (hash_index_t)key;
+}
+
+hash_index_t hash_function_integer(const void *key) {
+  return ((hash_index_t)key) * 2654435761;
+}
+
+hash_index_t hash_function_pointer(const void *key) {
+  return ((hash_index_t)key) * 2654435761;
+}
+
+hash_index_t hash_function_string(const void *key) {
+  hash_index_t hash = 5381;
+  const char *name = (const char *)key;
+  size_t string_len = strlen(name);
+  for (size_t i = 0; i < string_len; ++i)
+    hash = ((hash << 5) + hash ) + name[i];
+  return hash;
+}
diff --git a/rtkbt/code/bt/osi/src/hash_map.c b/rtkbt/code/bt/osi/src/hash_map.c
new file mode 100755
index 0000000..478cc5d
--- /dev/null
+++ b/rtkbt/code/bt/osi/src/hash_map.c
@@ -0,0 +1,246 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#include <assert.h>
+
+#include "osi/include/allocator.h"
+#include "osi/include/hash_map.h"
+#include "osi/include/list.h"
+#include "osi/include/osi.h"
+
+struct hash_map_t;
+
+typedef struct hash_map_bucket_t {
+  list_t *list;
+} hash_map_bucket_t;
+
+typedef struct hash_map_t {
+  hash_map_bucket_t *bucket;
+  size_t num_bucket;
+  size_t hash_size;
+  hash_index_fn hash_fn;
+  key_free_fn key_fn;
+  data_free_fn data_fn;
+  const allocator_t *allocator;
+  key_equality_fn keys_are_equal;
+} hash_map_t;
+
+// Hidden constructor for list, only to be used by us.
+list_t *list_new_internal(list_free_cb callback, const allocator_t *zeroed_allocator);
+
+static void bucket_free_(void *data);
+static bool default_key_equality(const void *x, const void *y);
+static hash_map_entry_t *find_bucket_entry_(list_t *hash_bucket_list,
+    const void *key);
+
+// Hidden constructor, only to be used by the allocation tracker. Behaves the same as
+// |hash_map_new|, except you get to specify the allocator.
+hash_map_t *hash_map_new_internal(
+    size_t num_bucket,
+    hash_index_fn hash_fn,
+    key_free_fn key_fn,
+    data_free_fn data_fn,
+    key_equality_fn equality_fn,
+    const allocator_t *zeroed_allocator) {
+  assert(hash_fn != NULL);
+  assert(num_bucket > 0);
+  assert(zeroed_allocator != NULL);
+
+  hash_map_t *hash_map = zeroed_allocator->alloc(sizeof(hash_map_t));
+  if (hash_map == NULL)
+    return NULL;
+
+  hash_map->hash_fn = hash_fn;
+  hash_map->key_fn = key_fn;
+  hash_map->data_fn = data_fn;
+  hash_map->allocator = zeroed_allocator;
+  hash_map->keys_are_equal = equality_fn ? equality_fn : default_key_equality;
+
+  hash_map->num_bucket = num_bucket;
+  hash_map->bucket = zeroed_allocator->alloc(sizeof(hash_map_bucket_t) * num_bucket);
+  if (hash_map->bucket == NULL) {
+    zeroed_allocator->free(hash_map);
+    return NULL;
+  }
+  return hash_map;
+}
+
+hash_map_t *hash_map_new(
+    size_t num_bucket,
+    hash_index_fn hash_fn,
+    key_free_fn key_fn,
+    data_free_fn data_fn,
+    key_equality_fn equality_fn) {
+  return hash_map_new_internal(num_bucket, hash_fn, key_fn, data_fn, equality_fn, &allocator_calloc);
+}
+
+void hash_map_free(hash_map_t *hash_map) {
+  if (hash_map == NULL)
+    return;
+  hash_map_clear(hash_map);
+  hash_map->allocator->free(hash_map->bucket);
+  hash_map->allocator->free(hash_map);
+}
+
+bool hash_map_is_empty(const hash_map_t *hash_map) {
+  assert(hash_map != NULL);
+  return (hash_map->hash_size == 0);
+}
+
+size_t hash_map_size(const hash_map_t *hash_map) {
+  assert(hash_map != NULL);
+  return hash_map->hash_size;
+}
+
+size_t hash_map_num_buckets(const hash_map_t *hash_map) {
+  assert(hash_map != NULL);
+  return hash_map->num_bucket;
+}
+
+bool hash_map_has_key(const hash_map_t *hash_map, const void *key) {
+  assert(hash_map != NULL);
+
+  hash_index_t hash_key = hash_map->hash_fn(key) % hash_map->num_bucket;
+  list_t *hash_bucket_list = hash_map->bucket[hash_key].list;
+
+  hash_map_entry_t *hash_map_entry = find_bucket_entry_(hash_bucket_list, key);
+  return (hash_map_entry != NULL);
+}
+
+bool hash_map_set(hash_map_t *hash_map, const void *key, void *data) {
+  assert(hash_map != NULL);
+  assert(data != NULL);
+
+  hash_index_t hash_key = hash_map->hash_fn(key) % hash_map->num_bucket;
+
+  if (hash_map->bucket[hash_key].list == NULL) {
+    hash_map->bucket[hash_key].list = list_new_internal(bucket_free_, hash_map->allocator);
+    if (hash_map->bucket[hash_key].list == NULL)
+        return false;
+  }
+  list_t *hash_bucket_list = hash_map->bucket[hash_key].list;
+
+  hash_map_entry_t *hash_map_entry = find_bucket_entry_(hash_bucket_list, key);
+
+  if (hash_map_entry) {
+    // Calls hash_map callback to delete the hash_map_entry.
+    UNUSED_ATTR bool rc = list_remove(hash_bucket_list, hash_map_entry);
+    assert(rc == true);
+  } else {
+    hash_map->hash_size++;
+  }
+  hash_map_entry = hash_map->allocator->alloc(sizeof(hash_map_entry_t));
+  if (hash_map_entry == NULL)
+    return false;
+
+  hash_map_entry->key = key;
+  hash_map_entry->data = data;
+  hash_map_entry->hash_map = hash_map;
+
+  return list_append(hash_bucket_list, hash_map_entry);
+}
+
+bool hash_map_erase(hash_map_t *hash_map, const void *key) {
+  assert(hash_map != NULL);
+
+  hash_index_t hash_key = hash_map->hash_fn(key) % hash_map->num_bucket;
+  list_t *hash_bucket_list = hash_map->bucket[hash_key].list;
+
+  hash_map_entry_t *hash_map_entry = find_bucket_entry_(hash_bucket_list, key);
+  if (hash_map_entry == NULL) {
+    return false;
+  }
+
+  hash_map->hash_size--;
+
+  return list_remove(hash_bucket_list, hash_map_entry);
+}
+
+void *hash_map_get(const hash_map_t *hash_map, const void *key) {
+  assert(hash_map != NULL);
+
+  hash_index_t hash_key = hash_map->hash_fn(key) % hash_map->num_bucket;
+  list_t *hash_bucket_list = hash_map->bucket[hash_key].list;
+
+  hash_map_entry_t *hash_map_entry = find_bucket_entry_(hash_bucket_list, key);
+  if (hash_map_entry != NULL)
+    return hash_map_entry->data;
+
+  return NULL;
+}
+
+void hash_map_clear(hash_map_t *hash_map) {
+  assert(hash_map != NULL);
+
+  for (hash_index_t i = 0; i < hash_map->num_bucket; i++){
+    if (hash_map->bucket[i].list == NULL)
+      continue;
+    list_free(hash_map->bucket[i].list);
+    hash_map->bucket[i].list = NULL;
+  }
+}
+
+void hash_map_foreach(hash_map_t *hash_map, hash_map_iter_cb callback, void *context) {
+  assert(hash_map != NULL);
+  assert(callback != NULL);
+
+  for (hash_index_t i = 0; i < hash_map->num_bucket; ++i){
+    if (hash_map->bucket[i].list == NULL)
+      continue;
+    for (const list_node_t *iter = list_begin(hash_map->bucket[i].list);
+        iter != list_end(hash_map->bucket[i].list);
+        iter = list_next(iter)) {
+       hash_map_entry_t *hash_map_entry = (hash_map_entry_t *)list_node(iter);
+       if (!callback(hash_map_entry, context))
+        return;
+    }
+  }
+}
+
+static void bucket_free_(void *data) {
+  assert(data != NULL);
+  hash_map_entry_t *hash_map_entry = (hash_map_entry_t *)data;
+  const hash_map_t *hash_map = hash_map_entry->hash_map;
+
+  if (hash_map->key_fn)
+    hash_map->key_fn((void *)hash_map_entry->key);
+  if (hash_map->data_fn)
+    hash_map->data_fn(hash_map_entry->data);
+  hash_map->allocator->free(hash_map_entry);
+}
+
+static hash_map_entry_t * find_bucket_entry_(list_t *hash_bucket_list,
+    const void *key) {
+
+  if (hash_bucket_list == NULL)
+    return NULL;
+
+  for (const list_node_t *iter = list_begin(hash_bucket_list);
+      iter != list_end(hash_bucket_list);
+      iter = list_next(iter)) {
+    hash_map_entry_t *hash_map_entry = (hash_map_entry_t *)list_node(iter);
+    if (hash_map_entry->hash_map->keys_are_equal(hash_map_entry->key, key)) {
+      return hash_map_entry;
+    }
+  }
+  return NULL;
+}
+
+static bool default_key_equality(const void *x, const void *y) {
+  return x == y;
+}
diff --git a/rtkbt/code/bt/osi/src/hash_map_utils.c b/rtkbt/code/bt/osi/src/hash_map_utils.c
new file mode 100755
index 0000000..a7b3eec
--- /dev/null
+++ b/rtkbt/code/bt/osi/src/hash_map_utils.c
@@ -0,0 +1,104 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2015 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+#define LOG_TAG "hash_map_utils"
+
+#include "osi/include/hash_map_utils.h"
+
+#include <assert.h>
+#include <string.h>
+
+#include "osi/include/allocator.h"
+#include "osi/include/hash_functions.h"
+#include "osi/include/hash_map.h"
+#include "osi/include/log.h"
+#include "osi/include/osi.h"
+
+static bool string_equals(const void *key_a, const void *key_b);
+static bool dump_entry(hash_map_entry_t *entry, UNUSED_ATTR void *context);
+
+static const size_t BUCKETS_NUM = 5;
+
+hash_map_t *hash_map_utils_new_from_string_params(const char *params) {
+  assert(params != NULL);
+
+  hash_map_t *map = hash_map_new(BUCKETS_NUM, hash_function_string, osi_free,
+                                 osi_free, string_equals);
+  if (!map)
+    return NULL;
+
+  char *str = osi_strdup(params);
+  if (!str)
+    return NULL;
+
+  LOG_VERBOSE(LOG_TAG, "%s: source string: '%s'", __func__, str);
+
+  // Parse |str| and add extracted key-and-value pair(s) in |map|.
+  int items = 0;
+  char *tmpstr;
+  char *kvpair = strtok_r(str, ";", &tmpstr);
+  while (kvpair && *kvpair) {
+    char *eq = strchr(kvpair, '=');
+
+    if (eq == kvpair)
+      goto next_pair;
+
+    char *key;
+    char *value;
+    if (eq) {
+      key = osi_strndup(kvpair, eq - kvpair);
+
+      // The increment of |eq| moves |eq| to the beginning of the value.
+      ++eq;
+      value = (*eq != '\0') ? osi_strdup(eq) : osi_strdup("");
+    } else {
+      key = osi_strdup(kvpair);
+      value = osi_strdup("");
+    }
+
+    hash_map_set(map, key, value);
+
+    items++;
+next_pair:
+    kvpair = strtok_r(NULL, ";", &tmpstr);
+  }
+
+  if (!items)
+    LOG_VERBOSE(LOG_TAG, "%s: no items found in string\n", __func__);
+
+  osi_free(str);
+  return map;
+}
+
+void hash_map_utils_dump_string_keys_string_values(hash_map_t *map) {
+  if (!map) {
+    LOG_VERBOSE( LOG_TAG, "%s: the given map is NULL\n", __func__);
+    return;
+  }
+  hash_map_foreach(map, dump_entry, NULL);
+}
+
+static bool string_equals(const void *key_a, const void *key_b) {
+  return !strcmp(key_a, key_b);
+}
+
+static bool dump_entry(hash_map_entry_t *entry, UNUSED_ATTR void *context) {
+  hash_map_entry_t *hash_map_entry = (hash_map_entry_t *)entry;
+  LOG_INFO(LOG_TAG, "key: '%s' value: '%s'\n", (char *)hash_map_entry->key,
+           (char *)hash_map_entry->data);
+  return true;
+}
diff --git a/rtkbt/code/bt/osi/src/list.c b/rtkbt/code/bt/osi/src/list.c
new file mode 100755
index 0000000..9468579
--- /dev/null
+++ b/rtkbt/code/bt/osi/src/list.c
@@ -0,0 +1,223 @@
+#include <assert.h>
+
+#include "osi/include/allocator.h"
+#include "osi/include/list.h"
+#include "osi/include/osi.h"
+
+struct list_node_t {
+  struct list_node_t *next;
+  void *data;
+};
+
+typedef struct list_t {
+  list_node_t *head;
+  list_node_t *tail;
+  size_t length;
+  list_free_cb free_cb;
+  const allocator_t *allocator;
+} list_t;
+
+static list_node_t *list_free_node_(list_t *list, list_node_t *node);
+
+// Hidden constructor, only to be used by the hash map for the allocation tracker.
+// Behaves the same as |list_new|, except you get to specify the allocator.
+list_t *list_new_internal(list_free_cb callback, const allocator_t *zeroed_allocator) {
+  list_t *list = (list_t *)zeroed_allocator->alloc(sizeof(list_t));
+  if (!list)
+    return NULL;
+
+  list->free_cb = callback;
+  list->allocator = zeroed_allocator;
+  return list;
+}
+
+list_t *list_new(list_free_cb callback) {
+  return list_new_internal(callback, &allocator_calloc);
+}
+
+void list_free(list_t *list) {
+  if (!list)
+    return;
+
+  list_clear(list);
+  list->allocator->free(list);
+}
+
+bool list_is_empty(const list_t *list) {
+  assert(list != NULL);
+  return (list->length == 0);
+}
+
+bool list_contains(const list_t *list, const void *data) {
+  assert(list != NULL);
+  assert(data != NULL);
+
+  for (const list_node_t *node = list_begin(list); node != list_end(list); node = list_next(node)) {
+    if (list_node(node) == data)
+      return true;
+  }
+
+  return false;
+}
+
+size_t list_length(const list_t *list) {
+  assert(list != NULL);
+  return list->length;
+}
+
+void *list_front(const list_t *list) {
+  assert(list != NULL);
+  assert(!list_is_empty(list));
+
+  return list->head->data;
+}
+
+void *list_back(const list_t *list) {
+  assert(list != NULL);
+  assert(!list_is_empty(list));
+
+  return list->tail->data;
+}
+
+list_node_t *list_back_node(const list_t *list) {
+  assert(list != NULL);
+  assert(!list_is_empty(list));
+
+  return list->tail;
+}
+
+bool list_insert_after(list_t *list, list_node_t *prev_node, void *data) {
+  assert(list != NULL);
+  assert(prev_node != NULL);
+  assert(data != NULL);
+
+  list_node_t *node = (list_node_t *)list->allocator->alloc(sizeof(list_node_t));
+  if (!node)
+    return false;
+
+  node->next = prev_node->next;
+  node->data = data;
+  prev_node->next = node;
+  if (list->tail == prev_node)
+    list->tail = node;
+  ++list->length;
+  return true;
+}
+
+bool list_prepend(list_t *list, void *data) {
+  assert(list != NULL);
+  assert(data != NULL);
+
+  list_node_t *node = (list_node_t *)list->allocator->alloc(sizeof(list_node_t));
+  if (!node)
+    return false;
+  node->next = list->head;
+  node->data = data;
+  list->head = node;
+  if (list->tail == NULL)
+    list->tail = list->head;
+  ++list->length;
+  return true;
+}
+
+bool list_append(list_t *list, void *data) {
+  assert(list != NULL);
+  assert(data != NULL);
+
+  list_node_t *node = (list_node_t *)list->allocator->alloc(sizeof(list_node_t));
+  if (!node)
+    return false;
+  node->next = NULL;
+  node->data = data;
+  if (list->tail == NULL) {
+    list->head = node;
+    list->tail = node;
+  } else {
+    list->tail->next = node;
+    list->tail = node;
+  }
+  ++list->length;
+  return true;
+}
+
+bool list_remove(list_t *list, void *data) {
+  assert(list != NULL);
+  assert(data != NULL);
+
+  if (list_is_empty(list))
+    return false;
+
+  if (list->head->data == data) {
+    list_node_t *next = list_free_node_(list, list->head);
+    if (list->tail == list->head)
+      list->tail = next;
+    list->head = next;
+    return true;
+  }
+
+  for (list_node_t *prev = list->head, *node = list->head->next; node; prev = node, node = node->next)
+    if (node->data == data) {
+      prev->next = list_free_node_(list, node);
+      if (list->tail == node)
+        list->tail = prev;
+      return true;
+    }
+
+  return false;
+}
+
+void list_clear(list_t *list) {
+  assert(list != NULL);
+  for (list_node_t *node = list->head; node; )
+    node = list_free_node_(list, node);
+  list->head = NULL;
+  list->tail = NULL;
+  list->length = 0;
+}
+
+list_node_t *list_foreach(const list_t *list, list_iter_cb callback, void *context) {
+  assert(list != NULL);
+  assert(callback != NULL);
+
+  for (list_node_t *node = list->head; node; ) {
+    list_node_t *next = node->next;
+    if (!callback(node->data, context))
+      return node;
+    node = next;
+  }
+  return NULL;
+}
+
+list_node_t *list_begin(const list_t *list) {
+  assert(list != NULL);
+  return list->head;
+}
+
+list_node_t *list_end(UNUSED_ATTR const list_t *list) {
+  assert(list != NULL);
+  return NULL;
+}
+
+list_node_t *list_next(const list_node_t *node) {
+  assert(node != NULL);
+  return node->next;
+}
+
+void *list_node(const list_node_t *node) {
+  assert(node != NULL);
+  return node->data;
+}
+
+static list_node_t *list_free_node_(list_t *list, list_node_t *node) {
+  assert(list != NULL);
+  assert(node != NULL);
+
+  list_node_t *next = node->next;
+
+  if (list->free_cb)
+    list->free_cb(node->data);
+  list->allocator->free(node);
+  --list->length;
+
+  return next;
+}
diff --git a/rtkbt/code/bt/osi/src/metrics.cpp b/rtkbt/code/bt/osi/src/metrics.cpp
new file mode 100755
index 0000000..064f99e
--- /dev/null
+++ b/rtkbt/code/bt/osi/src/metrics.cpp
@@ -0,0 +1,226 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2016 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+
+#define LOG_TAG "bt_osi_metrics"
+
+extern "C" {
+#include "osi/include/metrics.h"
+
+#include <errno.h>
+
+#include "osi/include/log.h"
+#include "osi/include/osi.h"
+}
+
+#include "osi/src/protos/bluetooth.pb.h"
+
+#include <base/base64.h>
+#include <google/protobuf/text_format.h>
+#include <mutex>
+
+using clearcut::connectivity::A2DPSession;
+using clearcut::connectivity::BluetoothLog;
+using clearcut::connectivity::BluetoothSession;
+using clearcut::connectivity::DeviceInfo;
+using clearcut::connectivity::DeviceInfo_DeviceType;
+using clearcut::connectivity::PairEvent;
+using clearcut::connectivity::ScanEvent;
+using clearcut::connectivity::ScanEvent_ScanTechnologyType;
+using clearcut::connectivity::ScanEvent_ScanEventType;
+using clearcut::connectivity::WakeEvent;
+using clearcut::connectivity::WakeEvent_WakeEventType;
+
+BluetoothLog *pending;
+std::mutex log_lock;
+
+static void lazy_initialize(void) {
+  if (pending == nullptr) {
+    pending = BluetoothLog::default_instance().New();
+  }
+}
+
+void metrics_pair_event(uint32_t disconnect_reason, uint64_t timestamp_ms,
+                        uint32_t device_class, device_type_t device_type) {
+  std::lock_guard<std::mutex> lock(log_lock);
+  lazy_initialize();
+
+  PairEvent *event = pending->add_pair_event();
+
+  DeviceInfo *info = event->mutable_device_paired_with();
+
+  info->set_device_class(device_class);
+
+  DeviceInfo_DeviceType type = DeviceInfo::DEVICE_TYPE_UNKNOWN;
+
+  if (device_type == DEVICE_TYPE_BREDR)
+    type = DeviceInfo::DEVICE_TYPE_BREDR;
+  if (device_type == DEVICE_TYPE_LE)
+    type = DeviceInfo::DEVICE_TYPE_LE;
+  if (device_type == DEVICE_TYPE_DUMO)
+    type = DeviceInfo::DEVICE_TYPE_DUMO;
+
+  info->set_device_type(type);
+
+  event->set_disconnect_reason(disconnect_reason);
+
+  event->set_event_time_millis(timestamp_ms);
+}
+
+void metrics_wake_event(wake_event_type_t type, const char *requestor,
+                        const char *name, uint64_t timestamp_ms) {
+  std::lock_guard<std::mutex> lock(log_lock);
+  lazy_initialize();
+
+  WakeEvent *event = pending->add_wake_event();
+
+  WakeEvent_WakeEventType waketype = WakeEvent::UNKNOWN;
+
+  if (type == WAKE_EVENT_ACQUIRED)
+    waketype = WakeEvent::ACQUIRED;
+  if (type == WAKE_EVENT_RELEASED)
+    waketype = WakeEvent::RELEASED;
+
+  event->set_wake_event_type(waketype);
+
+  if (requestor)
+    event->set_requestor(requestor);
+
+  if (name)
+    event->set_name(name);
+
+  event->set_event_time_millis(timestamp_ms);
+}
+
+void metrics_scan_event(bool start, const char *initator, scan_tech_t type,
+                        uint32_t results, uint64_t timestamp_ms) {
+  std::lock_guard<std::mutex> lock(log_lock);
+  lazy_initialize();
+
+  ScanEvent *event = pending->add_scan_event();
+
+  if (start)
+    event->set_scan_event_type(ScanEvent::SCAN_EVENT_START);
+  else
+    event->set_scan_event_type(ScanEvent::SCAN_EVENT_STOP);
+
+  if (initator)
+    event->set_initiator(initator);
+
+  ScanEvent::ScanTechnologyType scantype = ScanEvent::SCAN_TYPE_UNKNOWN;
+
+  if (type == SCAN_TECH_TYPE_LE)
+    scantype = ScanEvent::SCAN_TECH_TYPE_LE;
+  if (type == SCAN_TECH_TYPE_BREDR)
+    scantype = ScanEvent::SCAN_TECH_TYPE_BREDR;
+  if (type == SCAN_TECH_TYPE_BOTH)
+    scantype = ScanEvent::SCAN_TECH_TYPE_BOTH;
+
+  event->set_scan_technology_type(scantype);
+
+  event->set_number_results(results);
+
+  event->set_event_time_millis(timestamp_ms);
+}
+
+void metrics_a2dp_session(int64_t session_duration_sec,
+                          const char *disconnect_reason,
+                          uint32_t device_class,
+                          int32_t media_timer_min_ms,
+                          int32_t media_timer_max_ms,
+                          int32_t media_timer_avg_ms,
+                          int32_t buffer_overruns_max_count,
+                          int32_t buffer_overruns_total,
+                          float buffer_underruns_average,
+                          int32_t buffer_underruns_count) {
+  std::lock_guard<std::mutex> lock(log_lock);
+  lazy_initialize();
+
+  BluetoothSession *bt_session = pending->add_session();
+
+  // Set connection type: for A2DP it is always BR/EDR
+  BluetoothSession::ConnectionTechnologyType conn_type =
+    BluetoothSession::CONNECTION_TECHNOLOGY_TYPE_BREDR;
+  bt_session->set_connection_technology_type(conn_type);
+
+  bt_session->set_session_duration_sec(session_duration_sec);
+  if (disconnect_reason != NULL)
+    bt_session->set_disconnect_reason(disconnect_reason);
+
+  // Set device: class and type are pre-defined
+  DeviceInfo *info = bt_session->mutable_device_connected_to();
+  info->set_device_class(device_class);
+  info->set_device_type(DeviceInfo::DEVICE_TYPE_BREDR);
+
+  A2DPSession *a2dp_session = bt_session->mutable_a2dp_session();
+  a2dp_session->set_media_timer_min_millis(media_timer_min_ms);
+  a2dp_session->set_media_timer_max_millis(media_timer_max_ms);
+  a2dp_session->set_media_timer_avg_millis(media_timer_avg_ms);
+  a2dp_session->set_buffer_overruns_max_count(buffer_overruns_max_count);
+  a2dp_session->set_buffer_overruns_total(buffer_overruns_total);
+  a2dp_session->set_buffer_underruns_average(buffer_underruns_average);
+  a2dp_session->set_buffer_underruns_count(buffer_underruns_count);
+}
+
+void metrics_write(int fd, bool clear) {
+  log_lock.lock();
+  LOG_DEBUG(LOG_TAG, "%s serializing metrics", __func__);
+  lazy_initialize();
+
+  std::string serialized;
+  if (!pending->SerializeToString(&serialized)) {
+    LOG_ERROR(LOG_TAG, "%s: error serializing metrics", __func__);
+    return;
+  }
+
+  if (clear) {
+    pending->Clear();
+  }
+  log_lock.unlock();
+
+  std::string protoBase64;
+  base::Base64Encode(serialized, &protoBase64);
+
+  ssize_t ret;
+  OSI_NO_INTR(ret = write(fd, protoBase64.c_str(), protoBase64.size()));
+  if (ret == -1) {
+    LOG_ERROR(LOG_TAG, "%s: error writing to dumpsys fd: %s (%d)", __func__,
+              strerror(errno), errno);
+  }
+}
+
+void metrics_print(int fd, bool clear) {
+  log_lock.lock();
+  LOG_DEBUG(LOG_TAG, "%s printing metrics", __func__);
+  lazy_initialize();
+
+  std::string pretty_output;
+  google::protobuf::TextFormat::PrintToString(*pending, &pretty_output);
+
+  if (clear) {
+    pending->Clear();
+  }
+  log_lock.unlock();
+
+  ssize_t ret;
+  OSI_NO_INTR(ret = write(fd, pretty_output.c_str(), pretty_output.size()));
+  if (ret == -1) {
+    LOG_ERROR(LOG_TAG, "%s: error writing to dumpsys fd: %s (%d)", __func__,
+              strerror(errno), errno);
+  }
+}
diff --git a/rtkbt/code/bt/osi/src/metrics_linux.cpp b/rtkbt/code/bt/osi/src/metrics_linux.cpp
new file mode 100755
index 0000000..f013236
--- /dev/null
+++ b/rtkbt/code/bt/osi/src/metrics_linux.cpp
@@ -0,0 +1,60 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2016 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+
+#define LOG_TAG "bt_osi_metrics"
+
+extern "C" {
+#include "osi/include/metrics.h"
+}
+
+void metrics_pair_event(uint32_t disconnect_reason, uint64_t timestamp_ms,
+                        uint32_t device_class, device_type_t device_type) {
+  //TODO(jpawlowski): implement
+}
+
+void metrics_wake_event(wake_event_type_t type, const char *requestor,
+                        const char *name, uint64_t timestamp_ms) {
+  //TODO(jpawlowski): implement
+}
+
+void metrics_scan_event(bool start, const char *initator, scan_tech_t type,
+                        uint32_t results, uint64_t timestamp_ms) {
+  //TODO(jpawlowski): implement
+}
+
+void metrics_a2dp_session(int64_t session_duration_sec,
+                          const char *disconnect_reason,
+                          uint32_t device_class,
+                          int32_t media_timer_min_ms,
+                          int32_t media_timer_max_ms,
+                          int32_t media_timer_avg_ms,
+                          int32_t buffer_overruns_max_count,
+                          int32_t buffer_overruns_total,
+                          float buffer_underruns_average,
+                          int32_t buffer_underruns_count) {
+  //TODO(jpawlowski): implement
+}
+
+void metrics_write(int fd, bool clear) {
+  //TODO(jpawlowski): implement
+}
+
+void metrics_print(int fd, bool clear) {
+  //TODO(jpawlowski): implement
+}
diff --git a/rtkbt/code/bt/osi/src/mutex.c b/rtkbt/code/bt/osi/src/mutex.c
new file mode 100755
index 0000000..b70e4eb
--- /dev/null
+++ b/rtkbt/code/bt/osi/src/mutex.c
@@ -0,0 +1,44 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2015 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_osi_mutex"
+
+#include <pthread.h>
+
+#include "osi/include/mutex.h"
+
+static pthread_mutex_t global_lock;
+
+void mutex_init(void) {
+  pthread_mutexattr_t attr;
+  pthread_mutexattr_init(&attr);
+  pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE_NP);
+  pthread_mutex_init(&global_lock, &attr);
+}
+
+void mutex_cleanup(void) {
+  pthread_mutex_destroy(&global_lock);
+}
+
+void mutex_global_lock(void) {
+  pthread_mutex_lock(&global_lock);
+}
+
+void mutex_global_unlock(void) {
+  pthread_mutex_unlock(&global_lock);
+}
diff --git a/rtkbt/code/bt/osi/src/osi.c b/rtkbt/code/bt/osi/src/osi.c
new file mode 100755
index 0000000..2a6a779
--- /dev/null
+++ b/rtkbt/code/bt/osi/src/osi.c
@@ -0,0 +1,53 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2016 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_osi_rand"
+
+#include <assert.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+#include "osi/include/log.h"
+#include "osi/include/osi.h"
+
+#define RANDOM_PATH "/dev/urandom"
+
+int osi_rand(void) {
+  int rand;
+  int rand_fd = open(RANDOM_PATH, O_RDONLY);
+
+  if (rand_fd == INVALID_FD) {
+    LOG_ERROR(LOG_TAG, "%s can't open rand fd %s: %s ", __func__, RANDOM_PATH,
+              strerror(errno));
+    assert(0);
+  }
+
+  ssize_t read_bytes = read(rand_fd, &rand, sizeof(rand));
+  close(rand_fd);
+
+  assert(read_bytes == sizeof(rand));
+
+  if (rand < 0)
+    rand = -rand;
+
+  return rand;
+}
diff --git a/rtkbt/code/bt/osi/src/properties.c b/rtkbt/code/bt/osi/src/properties.c
new file mode 100755
index 0000000..7fddfff
--- /dev/null
+++ b/rtkbt/code/bt/osi/src/properties.c
@@ -0,0 +1,48 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2016 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#include <string.h>
+
+#include "osi/include/properties.h"
+
+int osi_property_get(const char *key, char *value, const char *default_value) {
+#if defined(OS_GENERIC)
+    /* For linux right now just return default value, if present */
+    int len = -1;
+    if (!default_value)
+      return len;
+
+    len = strlen(default_value);
+    if (len >= PROPERTY_VALUE_MAX)
+      len = PROPERTY_VALUE_MAX - 1;
+
+    memcpy(value, default_value, len);
+    value[len] = '\0';
+    return len;
+#else
+    return property_get(key, value, default_value);
+#endif  // defined(OS_GENERIC)
+}
+
+int osi_property_set(const char *key, const char *value) {
+#if defined(OS_GENERIC)
+    return -1;
+#else
+    return property_set(key, value);
+#endif  // defined(OS_GENERIC)
+}
\ No newline at end of file
diff --git a/rtkbt/code/bt/osi/src/protos/bluetooth.proto b/rtkbt/code/bt/osi/src/protos/bluetooth.proto
new file mode 100755
index 0000000..9a233ad
--- /dev/null
+++ b/rtkbt/code/bt/osi/src/protos/bluetooth.proto
@@ -0,0 +1,201 @@
+// Copyright 2014 Google Inc. All Rights Reserved.
+// Author: pkanwar@google.com (Pankaj Kanwar)
+// Protos for uploading bluetooth metrics.
+
+syntax = "proto2";
+
+package clearcut.connectivity;
+
+option java_package = "com.google.wireless.android.play.playlog.connectivity";
+//option (datapol.file_vetting_status) = "latest";
+
+// import "storage/datapol/annotations/proto/semantic_annotations.proto";
+
+message BluetoothLog {
+
+  // Session information that gets logged for every BT connection.
+  repeated BluetoothSession session = 1;
+
+  // Session information that gets logged for every Pair event.
+  repeated PairEvent pair_event = 2;
+
+  // Information for Wake locks.
+  repeated WakeEvent wake_event = 3;
+
+  // Scan event information.
+  repeated ScanEvent scan_event = 4;
+}
+
+// The information about the device.
+message DeviceInfo {
+
+  // Device type.
+  enum DeviceType {
+
+     // Type is unknown.
+     DEVICE_TYPE_UNKNOWN = 0;
+
+     DEVICE_TYPE_BREDR = 1;
+
+     DEVICE_TYPE_LE = 2;
+
+     DEVICE_TYPE_DUMO = 3;
+  }
+
+  // Device class
+  // https://cs.corp.google.com/#android/system/bt/stack/include/btm_api.h&q=major_computer.
+  optional int32 device_class = 1;
+
+  // Device type.
+  optional DeviceType device_type = 2;
+}
+
+// Information that gets logged for every Bluetooth connection.
+message BluetoothSession {
+
+  // Type of technology used in the connection.
+  enum ConnectionTechnologyType {
+
+     CONNECTION_TECHNOLOGY_TYPE_UNKNOWN = 0;
+
+     CONNECTION_TECHNOLOGY_TYPE_LE = 1;
+
+     CONNECTION_TECHNOLOGY_TYPE_BREDR = 2;
+  }
+
+  // Duration of the session.
+  optional int64 session_duration_sec = 2;
+
+  // Technology type.
+  optional ConnectionTechnologyType connection_technology_type = 3;
+
+  // Reason for disconnecting.
+  optional string disconnect_reason = 4;
+
+  // The information about the device which it is connected to.
+  optional DeviceInfo device_connected_to = 5;
+
+  // The information about the RFComm session.
+  optional RFCommSession rfcomm_session = 6;
+
+  // The information about the A2DP session.
+  optional A2DPSession a2dp_session = 7;
+}
+
+message RFCommSession {
+
+  // bytes transmitted.
+  optional int32 rx_bytes = 1;
+
+  // bytes transmitted.
+  optional int32 tx_bytes = 2;
+}
+
+// Session information that gets logged for every A2DP session.
+message A2DPSession {
+
+  // Media timer in milliseconds.
+  optional int32 media_timer_min_millis = 1;
+
+  // Media timer in milliseconds.
+  optional int32 media_timer_max_millis = 2;
+
+  // Media timer in milliseconds.
+  optional int32 media_timer_avg_millis = 3;
+
+  // Buffer overruns count.
+  optional int32 buffer_overruns_max_count = 4;
+
+  // Buffer overruns total.
+  optional int32 buffer_overruns_total = 5;
+
+  // Buffer underruns average.
+  optional float buffer_underruns_average = 6;
+
+  // Buffer underruns count.
+  optional int32 buffer_underruns_count = 7;
+}
+
+message PairEvent {
+
+  // The reason for disconnecting
+  // https://cs.corp.google.com/#android/system/bt/stack/include/hcidefs.h&q=failed_establish.
+  optional int32 disconnect_reason = 1;
+
+  // Pair event time
+  optional int64 event_time_millis = 2; // [(datapol.semantic_type) = ST_TIMESTAMP];
+
+  // The information about the device which it is paired to.
+  optional DeviceInfo device_paired_with = 3;
+}
+
+message WakeEvent {
+
+  // Information about the wake event type.
+  enum WakeEventType {
+
+     // Type is unknown.
+     UNKNOWN = 0;
+
+     // WakeLock was acquired.
+     ACQUIRED = 1;
+
+     // WakeLock was released.
+     RELEASED = 2;
+  }
+
+  // Information about the wake event type.
+  optional WakeEventType wake_event_type = 1;
+
+  // Initiator of the scan. Only the first three names will be stored.
+  // e.g. com.google.gms.
+  optional string requestor = 2;
+
+  // Name of the wakelock (e.g. bluedroid_timer).
+  optional string name = 3;
+
+  // Time of the event.
+  optional int64 event_time_millis = 4; // [(datapol.semantic_type) = ST_TIMESTAMP];
+}
+
+message ScanEvent {
+
+  // Scan type.
+  enum ScanTechnologyType {
+
+     // Scan Type is unknown.
+     SCAN_TYPE_UNKNOWN = 0;
+
+     SCAN_TECH_TYPE_LE = 1;
+
+     SCAN_TECH_TYPE_BREDR = 2;
+
+     SCAN_TECH_TYPE_BOTH = 3;
+  }
+
+  // Scan event type.
+  enum ScanEventType {
+
+     // Scan started.
+     SCAN_EVENT_START = 0;
+
+     // Scan stopped.
+     SCAN_EVENT_STOP = 1;
+  }
+
+  // Scan event type.
+  optional ScanEventType scan_event_type = 1;
+
+  // Initiator of the scan. Only the first three names will be stored.
+  // e.g. com.google.gms.
+  optional string initiator = 2;
+
+  // Technology used for scanning.
+  optional ScanTechnologyType scan_technology_type = 3;
+
+  // Number of results returned.
+  optional int32 number_results = 4;
+
+  // Time of the event.
+  optional int64 event_time_millis = 5; // [(datapol.semantic_type) = ST_TIMESTAMP];
+}
diff --git a/rtkbt/code/bt/osi/src/reactor.c b/rtkbt/code/bt/osi/src/reactor.c
new file mode 100755
index 0000000..7388d52
--- /dev/null
+++ b/rtkbt/code/bt/osi/src/reactor.c
@@ -0,0 +1,286 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_osi_reactor"
+
+#include "osi/include/reactor.h"
+
+#include <assert.h>
+#include <errno.h>
+#include <pthread.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/epoll.h>
+#include <sys/eventfd.h>
+#include <unistd.h>
+
+#include "osi/include/allocator.h"
+#include "osi/include/list.h"
+#include "osi/include/log.h"
+
+#if !defined(EFD_SEMAPHORE)
+#  define EFD_SEMAPHORE (1 << 0)
+#endif
+
+struct reactor_t {
+  int epoll_fd;
+  int event_fd;
+  pthread_mutex_t list_lock;  // protects invalidation_list.
+  list_t *invalidation_list;  // reactor objects that have been unregistered.
+  pthread_t run_thread;       // the pthread on which reactor_run is executing.
+  bool is_running;            // indicates whether |run_thread| is valid.
+  bool object_removed;
+};
+
+struct reactor_object_t {
+  int fd;                              // the file descriptor to monitor for events.
+  void *context;                       // a context that's passed back to the *_ready functions.
+  reactor_t *reactor;                  // the reactor instance this object is registered with.
+  pthread_mutex_t lock;                // protects the lifetime of this object and all variables.
+
+  void (*read_ready)(void *context);   // function to call when the file descriptor becomes readable.
+  void (*write_ready)(void *context);  // function to call when the file descriptor becomes writeable.
+};
+
+static reactor_status_t run_reactor(reactor_t *reactor, int iterations);
+
+static const size_t MAX_EVENTS = 64;
+static const eventfd_t EVENT_REACTOR_STOP = 1;
+
+reactor_t *reactor_new(void) {
+  reactor_t *ret = (reactor_t *)osi_calloc(sizeof(reactor_t));
+
+  ret->epoll_fd = INVALID_FD;
+  ret->event_fd = INVALID_FD;
+
+  ret->epoll_fd = epoll_create(MAX_EVENTS);
+  if (ret->epoll_fd == INVALID_FD) {
+    LOG_ERROR(LOG_TAG, "%s unable to create epoll instance: %s", __func__, strerror(errno));
+    goto error;
+  }
+
+  ret->event_fd = eventfd(0, 0);
+  if (ret->event_fd == INVALID_FD) {
+    LOG_ERROR(LOG_TAG, "%s unable to create eventfd: %s", __func__, strerror(errno));
+    goto error;
+  }
+
+  pthread_mutex_init(&ret->list_lock, NULL);
+  ret->invalidation_list = list_new(NULL);
+  if (!ret->invalidation_list) {
+    LOG_ERROR(LOG_TAG, "%s unable to allocate object invalidation list.", __func__);
+    goto error;
+  }
+
+  struct epoll_event event;
+  memset(&event, 0, sizeof(event));
+  event.events = EPOLLIN;
+  event.data.ptr = NULL;
+  if (epoll_ctl(ret->epoll_fd, EPOLL_CTL_ADD, ret->event_fd, &event) == -1) {
+    LOG_ERROR(LOG_TAG, "%s unable to register eventfd with epoll set: %s", __func__, strerror(errno));
+    goto error;
+  }
+
+  return ret;
+
+error:;
+  reactor_free(ret);
+  return NULL;
+}
+
+void reactor_free(reactor_t *reactor) {
+  if (!reactor)
+    return;
+
+  list_free(reactor->invalidation_list);
+  close(reactor->event_fd);
+  close(reactor->epoll_fd);
+  osi_free(reactor);
+}
+
+reactor_status_t reactor_start(reactor_t *reactor) {
+  assert(reactor != NULL);
+  return run_reactor(reactor, 0);
+}
+
+reactor_status_t reactor_run_once(reactor_t *reactor) {
+  assert(reactor != NULL);
+  return run_reactor(reactor, 1);
+}
+
+void reactor_stop(reactor_t *reactor) {
+  assert(reactor != NULL);
+
+  eventfd_write(reactor->event_fd, EVENT_REACTOR_STOP);
+}
+
+reactor_object_t *reactor_register(reactor_t *reactor,
+    int fd, void *context,
+    void (*read_ready)(void *context),
+    void (*write_ready)(void *context)) {
+  assert(reactor != NULL);
+  assert(fd != INVALID_FD);
+
+  reactor_object_t *object =
+      (reactor_object_t *)osi_calloc(sizeof(reactor_object_t));
+
+  object->reactor = reactor;
+  object->fd = fd;
+  object->context = context;
+  object->read_ready = read_ready;
+  object->write_ready = write_ready;
+  pthread_mutex_init(&object->lock, NULL);
+
+  struct epoll_event event;
+  memset(&event, 0, sizeof(event));
+  if (read_ready)
+    event.events |= (EPOLLIN | EPOLLRDHUP);
+  if (write_ready)
+    event.events |= EPOLLOUT;
+  event.data.ptr = object;
+
+  if (epoll_ctl(reactor->epoll_fd, EPOLL_CTL_ADD, fd, &event) == -1) {
+    LOG_ERROR(LOG_TAG, "%s unable to register fd %d to epoll set: %s", __func__, fd, strerror(errno));
+    pthread_mutex_destroy(&object->lock);
+    osi_free(object);
+    return NULL;
+  }
+
+  return object;
+}
+
+bool reactor_change_registration(reactor_object_t *object,
+    void (*read_ready)(void *context),
+    void (*write_ready)(void *context)) {
+  assert(object != NULL);
+
+  struct epoll_event event;
+  memset(&event, 0, sizeof(event));
+  if (read_ready)
+    event.events |= (EPOLLIN | EPOLLRDHUP);
+  if (write_ready)
+    event.events |= EPOLLOUT;
+  event.data.ptr = object;
+
+  if (epoll_ctl(object->reactor->epoll_fd, EPOLL_CTL_MOD, object->fd, &event) == -1) {
+    LOG_ERROR(LOG_TAG, "%s unable to modify interest set for fd %d: %s", __func__, object->fd, strerror(errno));
+    return false;
+  }
+
+  pthread_mutex_lock(&object->lock);
+  object->read_ready = read_ready;
+  object->write_ready = write_ready;
+  pthread_mutex_unlock(&object->lock);
+
+  return true;
+}
+
+void reactor_unregister(reactor_object_t *obj) {
+  assert(obj != NULL);
+
+  reactor_t *reactor = obj->reactor;
+
+  if (epoll_ctl(reactor->epoll_fd, EPOLL_CTL_DEL, obj->fd, NULL) == -1)
+    LOG_ERROR(LOG_TAG, "%s unable to unregister fd %d from epoll set: %s", __func__, obj->fd, strerror(errno));
+
+  if (reactor->is_running && pthread_equal(pthread_self(), reactor->run_thread)) {
+    reactor->object_removed = true;
+    return;
+  }
+
+  pthread_mutex_lock(&reactor->list_lock);
+  list_append(reactor->invalidation_list, obj);
+  pthread_mutex_unlock(&reactor->list_lock);
+
+  // Taking the object lock here makes sure a callback for |obj| isn't
+  // currently executing. The reactor thread must then either be before
+  // the callbacks or after. If after, we know that the object won't be
+  // referenced because it has been taken out of the epoll set. If before,
+  // it won't be referenced because the reactor thread will check the
+  // invalidation_list and find it in there. So by taking this lock, we
+  // are waiting until the reactor thread drops all references to |obj|.
+  // One the wait completes, we can unlock and destroy |obj| safely.
+  pthread_mutex_lock(&obj->lock);
+  pthread_mutex_unlock(&obj->lock);
+  pthread_mutex_destroy(&obj->lock);
+  osi_free(obj);
+}
+
+// Runs the reactor loop for a maximum of |iterations|.
+// 0 |iterations| means loop forever.
+// |reactor| may not be NULL.
+static reactor_status_t run_reactor(reactor_t *reactor, int iterations) {
+  assert(reactor != NULL);
+
+  reactor->run_thread = pthread_self();
+  reactor->is_running = true;
+
+  struct epoll_event events[MAX_EVENTS];
+  for (int i = 0; iterations == 0 || i < iterations; ++i) {
+    pthread_mutex_lock(&reactor->list_lock);
+    list_clear(reactor->invalidation_list);
+    pthread_mutex_unlock(&reactor->list_lock);
+
+    int ret;
+    OSI_NO_INTR(ret = epoll_wait(reactor->epoll_fd, events, MAX_EVENTS, -1));
+    if (ret == -1) {
+      LOG_ERROR(LOG_TAG, "%s error in epoll_wait: %s", __func__, strerror(errno));
+      reactor->is_running = false;
+      return REACTOR_STATUS_ERROR;
+    }
+
+    for (int j = 0; j < ret; ++j) {
+      // The event file descriptor is the only one that registers with
+      // a NULL data pointer. We use the NULL to identify it and break
+      // out of the reactor loop.
+      if (events[j].data.ptr == NULL) {
+        eventfd_t value;
+        eventfd_read(reactor->event_fd, &value);
+        reactor->is_running = false;
+        return REACTOR_STATUS_STOP;
+      }
+
+      reactor_object_t *object = (reactor_object_t *)events[j].data.ptr;
+
+      pthread_mutex_lock(&reactor->list_lock);
+      if (list_contains(reactor->invalidation_list, object)) {
+        pthread_mutex_unlock(&reactor->list_lock);
+        continue;
+      }
+
+      // Downgrade the list lock to an object lock.
+      pthread_mutex_lock(&object->lock);
+      pthread_mutex_unlock(&reactor->list_lock);
+
+      reactor->object_removed = false;
+      if (events[j].events & (EPOLLIN | EPOLLHUP | EPOLLRDHUP | EPOLLERR) && object->read_ready)
+        object->read_ready(object->context);
+      if (!reactor->object_removed && events[j].events & EPOLLOUT && object->write_ready)
+        object->write_ready(object->context);
+      pthread_mutex_unlock(&object->lock);
+
+      if (reactor->object_removed) {
+        pthread_mutex_destroy(&object->lock);
+        osi_free(object);
+      }
+    }
+  }
+
+  reactor->is_running = false;
+  return REACTOR_STATUS_DONE;
+}
diff --git a/rtkbt/code/bt/osi/src/ringbuffer.c b/rtkbt/code/bt/osi/src/ringbuffer.c
new file mode 100755
index 0000000..84d6043
--- /dev/null
+++ b/rtkbt/code/bt/osi/src/ringbuffer.c
@@ -0,0 +1,119 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2015 Google Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#include <assert.h>
+#include <stdlib.h>
+
+#include "osi/include/allocator.h"
+#include "osi/include/ringbuffer.h"
+
+struct ringbuffer_t {
+  size_t total;
+  size_t available;
+  uint8_t *base;
+  uint8_t *head;
+  uint8_t *tail;
+};
+
+ringbuffer_t* ringbuffer_init(const size_t size) {
+  ringbuffer_t* p = osi_calloc(sizeof(ringbuffer_t));
+
+  p->base = osi_calloc(size);
+  p->head = p->tail = p->base;
+  p->total = p->available = size;
+
+  return p;
+}
+
+void ringbuffer_free(ringbuffer_t *rb) {
+  if (rb != NULL)
+    osi_free(rb->base);
+  osi_free(rb);
+}
+
+size_t ringbuffer_available(const ringbuffer_t *rb) {
+  assert(rb);
+  return rb->available;
+}
+
+size_t ringbuffer_size(const ringbuffer_t *rb) {
+  assert(rb);
+  return rb->total - rb->available;
+}
+
+size_t ringbuffer_insert(ringbuffer_t *rb, const uint8_t *p, size_t length) {
+  assert(rb);
+  assert(p);
+
+  if (length > ringbuffer_available(rb))
+    length = ringbuffer_available(rb);
+
+  for (size_t i = 0; i != length; ++i) {
+    *rb->tail++ = *p++;
+    if (rb->tail >= (rb->base + rb->total))
+      rb->tail = rb->base;
+  }
+
+  rb->available -= length;
+  return length;
+}
+
+size_t ringbuffer_delete(ringbuffer_t *rb, size_t length) {
+  assert(rb);
+
+  if (length > ringbuffer_size(rb))
+    length = ringbuffer_size(rb);
+
+  rb->head += length;
+  if (rb->head >= (rb->base + rb->total))
+    rb->head -= rb->total;
+
+  rb->available += length;
+  return length;
+}
+
+size_t ringbuffer_peek(const ringbuffer_t *rb, off_t offset, uint8_t *p, size_t length) {
+  assert(rb);
+  assert(p);
+  assert(offset >= 0);
+  assert((size_t)offset <= ringbuffer_size(rb));
+
+  uint8_t *b = ((rb->head - rb->base + offset) % rb->total) + rb->base;
+  const size_t bytes_to_copy = (offset + length > ringbuffer_size(rb)) ? ringbuffer_size(rb) - offset : length;
+
+  for (size_t copied = 0; copied < bytes_to_copy; ++copied) {
+    *p++ = *b++;
+    if (b >= (rb->base + rb->total))
+      b = rb->base;
+  }
+
+  return bytes_to_copy;
+}
+
+size_t ringbuffer_pop(ringbuffer_t *rb, uint8_t *p, size_t length) {
+  assert(rb);
+  assert(p);
+
+  const size_t copied = ringbuffer_peek(rb, 0, p, length);
+  rb->head += copied;
+  if (rb->head >= (rb->base + rb->total))
+    rb->head -= rb->total;
+
+  rb->available += copied;
+  return copied;
+}
diff --git a/rtkbt/code/bt/osi/src/semaphore.c b/rtkbt/code/bt/osi/src/semaphore.c
new file mode 100755
index 0000000..45a9150
--- /dev/null
+++ b/rtkbt/code/bt/osi/src/semaphore.c
@@ -0,0 +1,108 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_osi_semaphore"
+
+#include "osi/include/semaphore.h"
+
+#include <assert.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <malloc.h>
+#include <string.h>
+#include <sys/eventfd.h>
+#include <unistd.h>
+
+#include "osi/include/allocator.h"
+#include "osi/include/log.h"
+#include "osi/include/osi.h"
+
+#if !defined(EFD_SEMAPHORE)
+#  define EFD_SEMAPHORE (1 << 0)
+#endif
+
+struct semaphore_t {
+  int fd;
+};
+
+semaphore_t *semaphore_new(unsigned int value) {
+  semaphore_t *ret = osi_malloc(sizeof(semaphore_t));
+  ret->fd = eventfd(value, EFD_SEMAPHORE);
+  if (ret->fd == INVALID_FD) {
+    LOG_ERROR(LOG_TAG, "%s unable to allocate semaphore: %s", __func__, strerror(errno));
+    osi_free(ret);
+    ret = NULL;
+  }
+  return ret;
+}
+
+void semaphore_free(semaphore_t *semaphore) {
+  if (!semaphore)
+    return;
+
+  if (semaphore->fd != INVALID_FD)
+    close(semaphore->fd);
+  osi_free(semaphore);
+}
+
+void semaphore_wait(semaphore_t *semaphore) {
+  assert(semaphore != NULL);
+  assert(semaphore->fd != INVALID_FD);
+
+  eventfd_t value;
+  if (eventfd_read(semaphore->fd, &value) == -1)
+    LOG_ERROR(LOG_TAG, "%s unable to wait on semaphore: %s", __func__, strerror(errno));
+}
+
+bool semaphore_try_wait(semaphore_t *semaphore) {
+  assert(semaphore != NULL);
+  assert(semaphore->fd != INVALID_FD);
+
+  int flags = fcntl(semaphore->fd, F_GETFL);
+  if (flags == -1) {
+    LOG_ERROR(LOG_TAG, "%s unable to get flags for semaphore fd: %s", __func__, strerror(errno));
+    return false;
+  }
+  if (fcntl(semaphore->fd, F_SETFL, flags | O_NONBLOCK) == -1) {
+    LOG_ERROR(LOG_TAG, "%s unable to set O_NONBLOCK for semaphore fd: %s", __func__, strerror(errno));
+    return false;
+  }
+
+  bool rc = true;
+  eventfd_t value;
+  if (eventfd_read(semaphore->fd, &value) == -1)
+    rc = false;
+
+  if (fcntl(semaphore->fd, F_SETFL, flags) == -1)
+    LOG_ERROR(LOG_TAG, "%s unable to restore flags for semaphore fd: %s", __func__, strerror(errno));
+  return rc;
+}
+
+void semaphore_post(semaphore_t *semaphore) {
+  assert(semaphore != NULL);
+  assert(semaphore->fd != INVALID_FD);
+
+  if (eventfd_write(semaphore->fd, 1ULL) == -1)
+    LOG_ERROR(LOG_TAG, "%s unable to post to semaphore: %s", __func__, strerror(errno));
+}
+
+int semaphore_get_fd(const semaphore_t *semaphore) {
+  assert(semaphore != NULL);
+  assert(semaphore->fd != INVALID_FD);
+  return semaphore->fd;
+}
diff --git a/rtkbt/code/bt/osi/src/socket.c b/rtkbt/code/bt/osi/src/socket.c
new file mode 100755
index 0000000..4ebb3b8
--- /dev/null
+++ b/rtkbt/code/bt/osi/src/socket.c
@@ -0,0 +1,228 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_osi_socket"
+
+#include "osi/include/socket.h"
+
+#include <asm/ioctls.h>
+#include <assert.h>
+#include <errno.h>
+#include <netinet/in.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+#include <unistd.h>
+
+#include "osi/include/allocator.h"
+#include "osi/include/log.h"
+#include "osi/include/osi.h"
+#include "osi/include/reactor.h"
+
+// The IPv4 loopback address: 127.0.0.1
+static const in_addr_t LOCALHOST_ = 0x7f000001;
+
+struct socket_t {
+  int fd;
+  reactor_object_t *reactor_object;
+  socket_cb read_ready;
+  socket_cb write_ready;
+  void *context;                     // Not owned, do not free.
+};
+
+static void internal_read_ready(void *context);
+static void internal_write_ready(void *context);
+
+socket_t *socket_new(void) {
+  socket_t *ret = (socket_t *)osi_calloc(sizeof(socket_t));
+
+  ret->fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
+  if (ret->fd == INVALID_FD) {
+    LOG_ERROR(LOG_TAG, "%s unable to create socket: %s", __func__, strerror(errno));
+    goto error;
+  }
+
+  int enable = 1;
+  if (setsockopt(ret->fd, SOL_SOCKET, SO_REUSEADDR, &enable, sizeof(enable)) == -1) {
+    LOG_ERROR(LOG_TAG, "%s unable to set SO_REUSEADDR: %s", __func__, strerror(errno));
+    goto error;
+  }
+
+  return ret;
+
+error:;
+  if (ret)
+    close(ret->fd);
+  osi_free(ret);
+  return NULL;
+}
+
+socket_t *socket_new_from_fd(int fd) {
+  assert(fd != INVALID_FD);
+
+  socket_t *ret = (socket_t *)osi_calloc(sizeof(socket_t));
+
+  ret->fd = fd;
+  return ret;
+}
+
+void socket_free(socket_t *socket) {
+  if (!socket)
+    return;
+
+  socket_unregister(socket);
+  close(socket->fd);
+  osi_free(socket);
+}
+
+bool socket_listen(const socket_t *socket, port_t port) {
+  assert(socket != NULL);
+
+  struct sockaddr_in addr;
+  addr.sin_family = AF_INET;
+  addr.sin_addr.s_addr = htonl(LOCALHOST_);
+  addr.sin_port = htons(port);
+  if (bind(socket->fd, (struct sockaddr *)&addr, sizeof(addr)) == -1) {
+    LOG_ERROR(LOG_TAG, "%s unable to bind socket to port %u: %s", __func__, port, strerror(errno));
+    return false;
+  }
+
+  if (listen(socket->fd, 10) == -1) {
+    LOG_ERROR(LOG_TAG, "%s unable to listen on port %u: %s", __func__, port, strerror(errno));
+    return false;
+  }
+
+  return true;
+}
+
+socket_t *socket_accept(const socket_t *socket) {
+  assert(socket != NULL);
+
+  int fd;
+  OSI_NO_INTR(fd = accept(socket->fd, NULL, NULL));
+  if (fd == INVALID_FD) {
+    LOG_ERROR(LOG_TAG, "%s unable to accept socket: %s", __func__, strerror(errno));
+    return NULL;
+  }
+
+  socket_t *ret = (socket_t *)osi_calloc(sizeof(socket_t));
+
+  ret->fd = fd;
+  return ret;
+}
+
+ssize_t socket_read(const socket_t *socket, void *buf, size_t count) {
+  assert(socket != NULL);
+  assert(buf != NULL);
+
+  ssize_t ret;
+  OSI_NO_INTR(ret = recv(socket->fd, buf, count, MSG_DONTWAIT));
+
+  return ret;
+}
+
+ssize_t socket_write(const socket_t *socket, const void *buf, size_t count) {
+  assert(socket != NULL);
+  assert(buf != NULL);
+
+  ssize_t ret;
+  OSI_NO_INTR(ret = send(socket->fd, buf, count, MSG_DONTWAIT));
+
+  return ret;
+}
+
+ssize_t socket_write_and_transfer_fd(const socket_t *socket, const void *buf, size_t count, int fd) {
+  assert(socket != NULL);
+  assert(buf != NULL);
+
+  if (fd == INVALID_FD)
+    return socket_write(socket, buf, count);
+
+  struct msghdr msg;
+  struct iovec iov;
+  char control_buf[CMSG_SPACE(sizeof(int))];
+
+  iov.iov_base = (void *)buf;
+  iov.iov_len = count;
+
+  msg.msg_iov = &iov;
+  msg.msg_iovlen = 1;
+  msg.msg_control = control_buf;
+  msg.msg_controllen = sizeof(control_buf);
+  msg.msg_name = NULL;
+  msg.msg_namelen = 0;
+
+  struct cmsghdr *header = CMSG_FIRSTHDR(&msg);
+  header->cmsg_level = SOL_SOCKET;
+  header->cmsg_type = SCM_RIGHTS;
+  header->cmsg_len = CMSG_LEN(sizeof(int));
+  *(int *)CMSG_DATA(header) = fd;
+
+  ssize_t ret;
+  OSI_NO_INTR(ret = sendmsg(socket->fd, &msg, MSG_DONTWAIT));
+
+  close(fd);
+  return ret;
+}
+
+ssize_t socket_bytes_available(const socket_t *socket) {
+  assert(socket != NULL);
+
+  int size = 0;
+  if (ioctl(socket->fd, FIONREAD, &size) == -1)
+    return -1;
+  return size;
+}
+
+void socket_register(socket_t *socket, reactor_t *reactor, void *context, socket_cb read_cb, socket_cb write_cb) {
+  assert(socket != NULL);
+
+  // Make sure the socket isn't currently registered.
+  socket_unregister(socket);
+
+  socket->read_ready = read_cb;
+  socket->write_ready = write_cb;
+  socket->context = context;
+
+  void (*read_fn)(void *) = (read_cb != NULL) ? internal_read_ready : NULL;
+  void (*write_fn)(void *) = (write_cb != NULL) ? internal_write_ready : NULL;
+
+  socket->reactor_object = reactor_register(reactor, socket->fd, socket, read_fn, write_fn);
+}
+
+void socket_unregister(socket_t *socket) {
+  assert(socket != NULL);
+
+  if (socket->reactor_object)
+    reactor_unregister(socket->reactor_object);
+  socket->reactor_object = NULL;
+}
+
+static void internal_read_ready(void *context) {
+  assert(context != NULL);
+
+  socket_t *socket = (void *)context;
+  socket->read_ready(socket, socket->context);
+}
+
+static void internal_write_ready(void *context) {
+  assert(context != NULL);
+
+  socket_t *socket = (void *)context;
+  socket->write_ready(socket, socket->context);
+}
diff --git a/rtkbt/code/bt/osi/src/socket_utils/README b/rtkbt/code/bt/osi/src/socket_utils/README
new file mode 100755
index 0000000..8616447
--- /dev/null
+++ b/rtkbt/code/bt/osi/src/socket_utils/README
@@ -0,0 +1,36 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+The sources in this folder re-implement some of the sources in libcutils/sockets
+to provide a short-term solution eliminating libcutils dependency from
+system/bt. Once a long-term platform-independent abstraction is presented, these
+sources and the corresponding headers should be removed.
+
+Note that only a part of the source files are pulled from libcutils/sockets, and
+"osi_" prefix is added to all functions. The developers who want to pull sockets
+sources other than the existing ones must put the sources in this folder and
+refactor the functions as well.
+
+The current sources include:
+
+[Headers]
+ - osi/include/socket_utils/sockets.h
+ - osi/include/socket_utils/socket_local.h
+[Source files]
+ - osi/src/socket_utils/socket_local_client.c
+ - osi/src/socket_utils/socket_local_server.c
+
+Please update the above list if adding more sources.
diff --git a/rtkbt/code/bt/osi/src/socket_utils/socket_local_client.c b/rtkbt/code/bt/osi/src/socket_utils/socket_local_client.c
new file mode 100755
index 0000000..73a828c
--- /dev/null
+++ b/rtkbt/code/bt/osi/src/socket_utils/socket_local_client.c
@@ -0,0 +1,151 @@
+/*
+ * Copyright (C) 2006 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <errno.h>
+#include <stddef.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/select.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <sys/un.h>
+#include <unistd.h>
+
+#include "osi/include/osi.h"
+#include "osi/include/socket_utils/sockets.h"
+#include "osi/include/socket_utils/socket_local.h"
+
+#define LISTEN_BACKLOG 4
+
+/* Documented in header file. */
+int osi_socket_make_sockaddr_un(const char *name, int namespaceId,
+                                struct sockaddr_un *p_addr, socklen_t *alen) {
+  memset(p_addr, 0, sizeof(*p_addr));
+  size_t namelen;
+
+  switch (namespaceId) {
+    case ANDROID_SOCKET_NAMESPACE_ABSTRACT:
+#if defined(__linux__)
+      namelen = strlen(name);
+
+      // Test with length +1 for the *initial* '\0'.
+      if ((namelen + 1) > sizeof(p_addr->sun_path)) {
+        goto error;
+      }
+
+      /*
+       * Note: The path in this case is *not* supposed to be
+       * '\0'-terminated. ("man 7 unix" for the gory details.)
+       */
+
+      p_addr->sun_path[0] = 0;
+      memcpy(p_addr->sun_path + 1, name, namelen);
+#else
+      /* this OS doesn't have the Linux abstract namespace */
+
+      namelen = strlen(name) + strlen(FILESYSTEM_SOCKET_PREFIX);
+      /* unix_path_max appears to be missing on linux */
+      if (namelen >
+          sizeof(*p_addr) - offsetof(struct sockaddr_un, sun_path) - 1) {
+        goto error;
+      }
+
+      strcpy(p_addr->sun_path, FILESYSTEM_SOCKET_PREFIX);
+      strcat(p_addr->sun_path, name);
+#endif
+      break;
+
+    case ANDROID_SOCKET_NAMESPACE_RESERVED:
+      namelen = strlen(name) + strlen(ANDROID_RESERVED_SOCKET_PREFIX);
+      /* unix_path_max appears to be missing on linux */
+      if (namelen >
+          sizeof(*p_addr) - offsetof(struct sockaddr_un, sun_path) - 1) {
+        goto error;
+      }
+
+      strcpy(p_addr->sun_path, ANDROID_RESERVED_SOCKET_PREFIX);
+      strcat(p_addr->sun_path, name);
+      break;
+
+    case ANDROID_SOCKET_NAMESPACE_FILESYSTEM:
+      namelen = strlen(name);
+      /* unix_path_max appears to be missing on linux */
+      if (namelen >
+          sizeof(*p_addr) - offsetof(struct sockaddr_un, sun_path) - 1) {
+        goto error;
+      }
+
+      strcpy(p_addr->sun_path, name);
+      break;
+    default:
+      // invalid namespace id
+      return -1;
+  }
+
+  p_addr->sun_family = AF_LOCAL;
+  *alen = namelen + offsetof(struct sockaddr_un, sun_path) + 1;
+  return 0;
+error:
+  return -1;
+}
+
+/**
+ * connect to peer named "name" on fd
+ * returns same fd or -1 on error.
+ * fd is not closed on error. that's your job.
+ *
+ * Used by AndroidSocketImpl
+ */
+int osi_socket_local_client_connect(int fd, const char *name, int namespaceId,
+                                    int type UNUSED_ATTR) {
+  struct sockaddr_un addr;
+  socklen_t alen;
+  int err;
+
+  err = osi_socket_make_sockaddr_un(name, namespaceId, &addr, &alen);
+
+  if (err < 0) {
+    goto error;
+  }
+
+  OSI_NO_INTR(err = connect(fd, (struct sockaddr *)&addr, alen));
+  if (err < 0) {
+    goto error;
+  }
+
+  return fd;
+
+error:
+  return -1;
+}
+
+/**
+ * connect to peer named "name"
+ * returns fd or -1 on error
+ */
+int osi_socket_local_client(const char *name, int namespaceId, int type) {
+  int s;
+
+  s = socket(AF_LOCAL, type, 0);
+  if (s < 0) return -1;
+
+  if (0 > osi_socket_local_client_connect(s, name, namespaceId, type)) {
+    close(s);
+    return -1;
+  }
+
+  return s;
+}
diff --git a/rtkbt/code/bt/osi/src/socket_utils/socket_local_server.c b/rtkbt/code/bt/osi/src/socket_utils/socket_local_server.c
new file mode 100755
index 0000000..466cc1c
--- /dev/null
+++ b/rtkbt/code/bt/osi/src/socket_utils/socket_local_server.c
@@ -0,0 +1,106 @@
+/*
+ * Copyright (C) 2006, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <errno.h>
+#include <netinet/in.h>
+#include <stddef.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+#include <sys/select.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include "osi/include/socket_utils/sockets.h"
+#include "osi/include/socket_utils/socket_local.h"
+
+#define LISTEN_BACKLOG 4
+
+/* Only the bottom bits are really the socket type; there are flags too. */
+#define SOCK_TYPE_MASK 0xf
+
+/**
+ * Binds a pre-created socket(AF_LOCAL) 's' to 'name'
+ * returns 's' on success, -1 on fail
+ *
+ * Does not call listen()
+ */
+int osi_socket_local_server_bind(int s, const char *name, int namespaceId) {
+  struct sockaddr_un addr;
+  socklen_t alen;
+  int n;
+  int err;
+
+  err = osi_socket_make_sockaddr_un(name, namespaceId, &addr, &alen);
+
+  if (err < 0) {
+    return -1;
+  }
+
+/* basically: if this is a filesystem path, unlink first */
+#if !defined(__linux__)
+  if (1) {
+#else
+  if (namespaceId == ANDROID_SOCKET_NAMESPACE_RESERVED ||
+      namespaceId == ANDROID_SOCKET_NAMESPACE_FILESYSTEM) {
+#endif
+    /*ignore ENOENT*/
+    unlink(addr.sun_path);
+  }
+
+  n = 1;
+  setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &n, sizeof(n));
+
+  if (bind(s, (struct sockaddr *)&addr, alen) < 0) {
+    return -1;
+  }
+
+  return s;
+}
+
+/** Open a server-side UNIX domain datagram socket in the Linux non-filesystem
+ *  namespace
+ *
+ *  Returns fd on success, -1 on fail
+ */
+int osi_socket_local_server(const char *name, int namespace, int type) {
+  int err;
+  int s;
+
+  s = socket(AF_LOCAL, type, 0);
+  if (s < 0) return -1;
+
+  err = osi_socket_local_server_bind(s, name, namespace);
+
+  if (err < 0) {
+    close(s);
+    return -1;
+  }
+
+  if ((type & SOCK_TYPE_MASK) == SOCK_STREAM) {
+    int ret;
+
+    ret = listen(s, LISTEN_BACKLOG);
+
+    if (ret < 0) {
+      close(s);
+      return -1;
+    }
+  }
+
+  return s;
+}
diff --git a/rtkbt/code/bt/osi/src/thread.c b/rtkbt/code/bt/osi/src/thread.c
new file mode 100755
index 0000000..ebeab56
--- /dev/null
+++ b/rtkbt/code/bt/osi/src/thread.c
@@ -0,0 +1,235 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_osi_thread"
+
+#include "osi/include/thread.h"
+
+#include <assert.h>
+#include <errno.h>
+#include <malloc.h>
+#include <pthread.h>
+#include <string.h>
+#include <sys/prctl.h>
+#include <sys/resource.h>
+#include <sys/types.h>
+
+#include "osi/include/allocator.h"
+#include "osi/include/compat.h"
+#include "osi/include/fixed_queue.h"
+#include "osi/include/log.h"
+#include "osi/include/reactor.h"
+#include "osi/include/semaphore.h"
+
+struct thread_t {
+  bool is_joined;
+  pthread_t pthread;
+  pid_t tid;
+  char name[THREAD_NAME_MAX + 1];
+  reactor_t *reactor;
+  fixed_queue_t *work_queue;
+};
+
+struct start_arg {
+  thread_t *thread;
+  semaphore_t *start_sem;
+  int error;
+};
+
+typedef struct {
+  thread_fn func;
+  void *context;
+} work_item_t;
+
+static void *run_thread(void *start_arg);
+static void work_queue_read_cb(void *context);
+
+static const size_t DEFAULT_WORK_QUEUE_CAPACITY = 128;
+
+thread_t *thread_new_sized(const char *name, size_t work_queue_capacity) {
+  assert(name != NULL);
+  assert(work_queue_capacity != 0);
+
+  thread_t *ret = osi_calloc(sizeof(thread_t));
+
+  ret->reactor = reactor_new();
+  if (!ret->reactor)
+    goto error;
+
+  ret->work_queue = fixed_queue_new(work_queue_capacity);
+  if (!ret->work_queue)
+    goto error;
+
+  // Start is on the stack, but we use a semaphore, so it's safe
+  struct start_arg start;
+  start.start_sem = semaphore_new(0);
+  if (!start.start_sem)
+    goto error;
+
+  strncpy(ret->name, name, THREAD_NAME_MAX);
+  start.thread = ret;
+  start.error = 0;
+  pthread_create(&ret->pthread, NULL, run_thread, &start);
+  semaphore_wait(start.start_sem);
+  semaphore_free(start.start_sem);
+
+  if (start.error)
+    goto error;
+
+  return ret;
+
+error:;
+  if (ret) {
+    fixed_queue_free(ret->work_queue, osi_free);
+    reactor_free(ret->reactor);
+  }
+  osi_free(ret);
+  return NULL;
+}
+
+thread_t *thread_new(const char *name) {
+  return thread_new_sized(name, DEFAULT_WORK_QUEUE_CAPACITY);
+}
+
+void thread_free(thread_t *thread) {
+  if (!thread)
+    return;
+
+  thread_stop(thread);
+  thread_join(thread);
+
+  fixed_queue_free(thread->work_queue, osi_free);
+  reactor_free(thread->reactor);
+  osi_free(thread);
+}
+
+void thread_join(thread_t *thread) {
+  assert(thread != NULL);
+
+  // TODO(zachoverflow): use a compare and swap when ready
+  if (!thread->is_joined) {
+    thread->is_joined = true;
+    pthread_join(thread->pthread, NULL);
+  }
+}
+
+bool thread_post(thread_t *thread, thread_fn func, void *context) {
+  assert(thread != NULL);
+  assert(func != NULL);
+
+  // TODO(sharvil): if the current thread == |thread| and we've run out
+  // of queue space, we should abort this operation, otherwise we'll
+  // deadlock.
+
+  // Queue item is freed either when the queue itself is destroyed
+  // or when the item is removed from the queue for dispatch.
+  work_item_t *item = (work_item_t *)osi_malloc(sizeof(work_item_t));
+  item->func = func;
+  item->context = context;
+  fixed_queue_enqueue(thread->work_queue, item);
+  return true;
+}
+
+void thread_stop(thread_t *thread) {
+  assert(thread != NULL);
+  reactor_stop(thread->reactor);
+}
+
+bool thread_set_priority(thread_t *thread, int priority) {
+  if (!thread)
+    return false;
+
+  const int rc = setpriority(PRIO_PROCESS, thread->tid, priority);
+  if (rc < 0) {
+    LOG_ERROR(LOG_TAG, "%s unable to set thread priority %d for tid %d, error %d",
+      __func__, priority, thread->tid, rc);
+    return false;
+  }
+
+  return true;
+}
+
+bool thread_is_self(const thread_t *thread) {
+  assert(thread != NULL);
+  return !!pthread_equal(pthread_self(), thread->pthread);
+}
+
+reactor_t *thread_get_reactor(const thread_t *thread) {
+  assert(thread != NULL);
+  return thread->reactor;
+}
+
+const char *thread_name(const thread_t *thread) {
+  assert(thread != NULL);
+  return thread->name;
+}
+
+static void *run_thread(void *start_arg) {
+  assert(start_arg != NULL);
+
+  struct start_arg *start = start_arg;
+  thread_t *thread = start->thread;
+
+  assert(thread != NULL);
+
+  if (prctl(PR_SET_NAME, (unsigned long)thread->name) == -1) {
+    LOG_ERROR(LOG_TAG, "%s unable to set thread name: %s", __func__, strerror(errno));
+    start->error = errno;
+    semaphore_post(start->start_sem);
+    return NULL;
+  }
+  thread->tid = gettid();
+
+  LOG_WARN(LOG_TAG, "%s: thread id %d, thread name %s started", __func__, thread->tid, thread->name);
+
+  semaphore_post(start->start_sem);
+
+  int fd = fixed_queue_get_dequeue_fd(thread->work_queue);
+  void *context = thread->work_queue;
+
+  reactor_object_t *work_queue_object = reactor_register(thread->reactor, fd, context, work_queue_read_cb, NULL);
+  reactor_start(thread->reactor);
+  reactor_unregister(work_queue_object);
+
+  // Make sure we dispatch all queued work items before exiting the thread.
+  // This allows a caller to safely tear down by enqueuing a teardown
+  // work item and then joining the thread.
+  size_t count = 0;
+  work_item_t *item = fixed_queue_try_dequeue(thread->work_queue);
+  while (item && count <= fixed_queue_capacity(thread->work_queue)) {
+    item->func(item->context);
+    osi_free(item);
+    item = fixed_queue_try_dequeue(thread->work_queue);
+    ++count;
+  }
+
+  if (count > fixed_queue_capacity(thread->work_queue))
+    LOG_DEBUG(LOG_TAG, "%s growing event queue on shutdown.", __func__);
+
+  LOG_WARN(LOG_TAG, "%s: thread id %d, thread name %s exited", __func__, thread->tid, thread->name);
+  return NULL;
+}
+
+static void work_queue_read_cb(void *context) {
+  assert(context != NULL);
+
+  fixed_queue_t *queue = (fixed_queue_t *)context;
+  work_item_t *item = fixed_queue_dequeue(queue);
+  item->func(item->context);
+  osi_free(item);
+}
diff --git a/rtkbt/code/bt/osi/src/time.c b/rtkbt/code/bt/osi/src/time.c
new file mode 100755
index 0000000..f1d8dca
--- /dev/null
+++ b/rtkbt/code/bt/osi/src/time.c
@@ -0,0 +1,29 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2015 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_osi_time"
+
+#include <time.h>
+
+#include "osi/include/time.h"
+
+uint32_t time_get_os_boottime_ms(void) {
+  struct timespec timespec;
+  clock_gettime(CLOCK_BOOTTIME, &timespec);
+  return (timespec.tv_sec * 1000) + (timespec.tv_nsec / 1000000);
+}
diff --git a/rtkbt/code/bt/osi/src/wakelock.c b/rtkbt/code/bt/osi/src/wakelock.c
new file mode 100755
index 0000000..fc19cc4
--- /dev/null
+++ b/rtkbt/code/bt/osi/src/wakelock.c
@@ -0,0 +1,393 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2015 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_osi_wakelock"
+
+#include <assert.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <hardware/bluetooth.h>
+#include <inttypes.h>
+#include <limits.h>
+#include <pthread.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <time.h>
+#include <unistd.h>
+
+#include "osi/include/alarm.h"
+#include "osi/include/allocator.h"
+#include "osi/include/log.h"
+#include "osi/include/metrics.h"
+#include "osi/include/osi.h"
+#include "osi/include/thread.h"
+#include "osi/include/wakelock.h"
+
+static bt_os_callouts_t *wakelock_os_callouts = NULL;
+static bool is_native = true;
+
+static const clockid_t CLOCK_ID = CLOCK_BOOTTIME;
+static const char *WAKE_LOCK_ID = "bluetooth_timer";
+static char *DEFAULT_WAKE_LOCK_PATH = "/sys/power/wake_lock";
+static char *DEFAULT_WAKE_UNLOCK_PATH = "/sys/power/wake_unlock";
+static char *wake_lock_path = NULL;
+static char *wake_unlock_path = NULL;
+static ssize_t locked_id_len = -1;
+static pthread_once_t initialized = PTHREAD_ONCE_INIT;
+static int wake_lock_fd = INVALID_FD;
+static int wake_unlock_fd = INVALID_FD;
+
+// Wakelock statistics for the "bluetooth_timer"
+typedef struct {
+  bool is_acquired;
+  size_t acquired_count;
+  size_t released_count;
+  size_t acquired_errors;
+  size_t released_errors;
+  period_ms_t min_acquired_interval_ms;
+  period_ms_t max_acquired_interval_ms;
+  period_ms_t last_acquired_interval_ms;
+  period_ms_t total_acquired_interval_ms;
+  period_ms_t last_acquired_timestamp_ms;
+  period_ms_t last_released_timestamp_ms;
+  period_ms_t last_reset_timestamp_ms;
+  int last_acquired_error;
+  int last_released_error;
+} wakelock_stats_t;
+
+static wakelock_stats_t wakelock_stats;
+
+// This mutex ensures that the functions that update and dump the statistics
+// are executed serially.
+static pthread_mutex_t monitor;
+
+static bt_status_t wakelock_acquire_callout(void);
+static bt_status_t wakelock_acquire_native(void);
+static bt_status_t wakelock_release_callout(void);
+static bt_status_t wakelock_release_native(void);
+static void wakelock_initialize(void);
+static void wakelock_initialize_native(void);
+static void reset_wakelock_stats(void);
+static void update_wakelock_acquired_stats(bt_status_t acquired_status);
+static void update_wakelock_released_stats(bt_status_t released_status);
+
+void wakelock_set_os_callouts(bt_os_callouts_t *callouts)
+{
+  wakelock_os_callouts = callouts;
+  is_native = (wakelock_os_callouts == NULL);
+  LOG_INFO(LOG_TAG, "%s set to %s",
+           __func__, (is_native)? "native" : "non-native");
+}
+
+bool wakelock_acquire(void) {
+  pthread_once(&initialized, wakelock_initialize);
+
+  bt_status_t status = BT_STATUS_FAIL;
+
+  if (is_native)
+    status = wakelock_acquire_native();
+  else
+    status = wakelock_acquire_callout();
+
+  update_wakelock_acquired_stats(status);
+
+  if (status != BT_STATUS_SUCCESS)
+    LOG_ERROR(LOG_TAG, "%s unable to acquire wake lock: %d", __func__, status);
+
+  return (status == BT_STATUS_SUCCESS);
+}
+
+static bt_status_t wakelock_acquire_callout(void) {
+  return wakelock_os_callouts->acquire_wake_lock(WAKE_LOCK_ID);
+}
+
+static bt_status_t wakelock_acquire_native(void) {
+  if (wake_lock_fd == INVALID_FD) {
+    LOG_ERROR(LOG_TAG, "%s lock not acquired, invalid fd", __func__);
+    return BT_STATUS_PARM_INVALID;
+  }
+
+  if (wake_unlock_fd == INVALID_FD) {
+    LOG_ERROR(LOG_TAG, "%s not acquiring lock: can't release lock", __func__);
+    return BT_STATUS_PARM_INVALID;
+  }
+
+  long lock_name_len = strlen(WAKE_LOCK_ID);
+  locked_id_len = write(wake_lock_fd, WAKE_LOCK_ID, lock_name_len);
+  if (locked_id_len == -1) {
+    LOG_ERROR(LOG_TAG, "%s wake lock not acquired: %s",
+              __func__, strerror(errno));
+    return BT_STATUS_FAIL;
+  } else if (locked_id_len < lock_name_len) {
+    // TODO (jamuraa): this is weird. maybe we should release and retry.
+    LOG_WARN(LOG_TAG, "%s wake lock truncated to %zd chars",
+             __func__, locked_id_len);
+  }
+  return BT_STATUS_SUCCESS;
+}
+
+bool wakelock_release(void) {
+  pthread_once(&initialized, wakelock_initialize);
+
+  bt_status_t status = BT_STATUS_FAIL;
+
+  if (is_native)
+    status = wakelock_release_native();
+  else
+    status = wakelock_release_callout();
+
+  update_wakelock_released_stats(status);
+
+  return (status == BT_STATUS_SUCCESS);
+}
+
+static bt_status_t wakelock_release_callout(void) {
+  return wakelock_os_callouts->release_wake_lock(WAKE_LOCK_ID);
+}
+
+static bt_status_t wakelock_release_native(void) {
+  if (wake_unlock_fd == INVALID_FD) {
+    LOG_ERROR(LOG_TAG, "%s lock not released, invalid fd", __func__);
+    return BT_STATUS_PARM_INVALID;
+  }
+
+  ssize_t wrote_name_len = write(wake_unlock_fd, WAKE_LOCK_ID, locked_id_len);
+  if (wrote_name_len == -1) {
+    LOG_ERROR(LOG_TAG, "%s can't release wake lock: %s",
+              __func__, strerror(errno));
+  } else if (wrote_name_len < locked_id_len) {
+    LOG_ERROR(LOG_TAG, "%s lock release only wrote %zd, assuming released",
+              __func__, wrote_name_len);
+  }
+  return BT_STATUS_SUCCESS;
+}
+
+static void wakelock_initialize(void) {
+  pthread_mutex_init(&monitor, NULL);
+  reset_wakelock_stats();
+
+  if (is_native)
+    wakelock_initialize_native();
+}
+
+static void wakelock_initialize_native(void) {
+  LOG_DEBUG(LOG_TAG, "%s opening wake locks", __func__);
+
+  if (!wake_lock_path)
+    wake_lock_path = DEFAULT_WAKE_LOCK_PATH;
+
+  wake_lock_fd = open(wake_lock_path, O_RDWR | O_CLOEXEC);
+  if (wake_lock_fd == INVALID_FD) {
+    LOG_ERROR(LOG_TAG, "%s can't open wake lock %s: %s",
+              __func__, wake_lock_path, strerror(errno));
+  }
+
+  if (!wake_unlock_path)
+    wake_unlock_path = DEFAULT_WAKE_UNLOCK_PATH;
+
+  wake_unlock_fd = open(wake_unlock_path, O_RDWR | O_CLOEXEC);
+  if (wake_unlock_fd == INVALID_FD) {
+    LOG_ERROR(LOG_TAG, "%s can't open wake unlock %s: %s",
+              __func__, wake_unlock_path, strerror(errno));
+  }
+}
+
+void wakelock_cleanup(void) {
+  if (wake_lock_path && wake_lock_path != DEFAULT_WAKE_LOCK_PATH)
+    osi_free_and_reset((void **)&wake_lock_path);
+
+  if (wake_unlock_path && wake_unlock_path != DEFAULT_WAKE_UNLOCK_PATH)
+    osi_free_and_reset((void **)&wake_unlock_path);
+
+  initialized = PTHREAD_ONCE_INIT;
+  pthread_mutex_destroy(&monitor);
+}
+
+void wakelock_set_paths(const char *lock_path, const char *unlock_path) {
+  if (lock_path) {
+    if (wake_lock_path && wake_lock_path != DEFAULT_WAKE_LOCK_PATH)
+      osi_free(wake_lock_path);
+    wake_lock_path = osi_strndup(lock_path, PATH_MAX);
+  }
+
+  if (unlock_path) {
+    if (wake_unlock_path && wake_unlock_path != DEFAULT_WAKE_UNLOCK_PATH)
+      osi_free(wake_unlock_path);
+    wake_unlock_path = osi_strndup(unlock_path, PATH_MAX);
+  }
+}
+
+static period_ms_t now(void) {
+  struct timespec ts;
+  if (clock_gettime(CLOCK_ID, &ts) == -1) {
+    LOG_ERROR(LOG_TAG, "%s unable to get current time: %s",
+              __func__, strerror(errno));
+    return 0;
+  }
+
+  return (ts.tv_sec * 1000LL) + (ts.tv_nsec / 1000000LL);
+}
+
+// Reset the Bluetooth wakelock statistics.
+// This function is thread-safe.
+static void reset_wakelock_stats(void) {
+  pthread_mutex_lock(&monitor);
+
+  wakelock_stats.is_acquired = false;
+  wakelock_stats.acquired_count = 0;
+  wakelock_stats.released_count = 0;
+  wakelock_stats.acquired_errors = 0;
+  wakelock_stats.released_errors = 0;
+  wakelock_stats.min_acquired_interval_ms = 0;
+  wakelock_stats.max_acquired_interval_ms = 0;
+  wakelock_stats.last_acquired_interval_ms = 0;
+  wakelock_stats.total_acquired_interval_ms = 0;
+  wakelock_stats.last_acquired_timestamp_ms = 0;
+  wakelock_stats.last_released_timestamp_ms = 0;
+  wakelock_stats.last_reset_timestamp_ms = now();
+
+  pthread_mutex_unlock(&monitor);
+}
+
+//
+// Update the Bluetooth acquire wakelock statistics.
+//
+// This function should be called every time when the wakelock is acquired.
+// |acquired_status| is the status code that was return when the wakelock was
+// acquired.
+// This function is thread-safe.
+//
+static void update_wakelock_acquired_stats(bt_status_t acquired_status) {
+  const period_ms_t now_ms = now();
+
+  pthread_mutex_lock(&monitor);
+
+  if (acquired_status != BT_STATUS_SUCCESS) {
+    wakelock_stats.acquired_errors++;
+    wakelock_stats.last_acquired_error = acquired_status;
+  }
+
+  if (wakelock_stats.is_acquired) {
+    pthread_mutex_unlock(&monitor);
+    return;
+  }
+
+  wakelock_stats.is_acquired = true;
+  wakelock_stats.acquired_count++;
+  wakelock_stats.last_acquired_timestamp_ms = now_ms;
+
+  pthread_mutex_unlock(&monitor);
+
+  metrics_wake_event(WAKE_EVENT_ACQUIRED, NULL, WAKE_LOCK_ID, now_ms);
+}
+
+//
+// Update the Bluetooth release wakelock statistics.
+//
+// This function should be called every time when the wakelock is released.
+// |released_status| is the status code that was return when the wakelock was
+// released.
+// This function is thread-safe.
+//
+static void update_wakelock_released_stats(bt_status_t released_status) {
+  const period_ms_t now_ms = now();
+
+  pthread_mutex_lock(&monitor);
+
+  if (released_status != BT_STATUS_SUCCESS) {
+    wakelock_stats.released_errors++;
+    wakelock_stats.last_released_error = released_status;
+  }
+
+  if (!wakelock_stats.is_acquired) {
+    pthread_mutex_unlock(&monitor);
+    return;
+  }
+
+  wakelock_stats.is_acquired = false;
+  wakelock_stats.released_count++;
+  wakelock_stats.last_released_timestamp_ms = now_ms;
+
+  // Compute the acquired interval and update the statistics
+  period_ms_t delta_ms = now_ms - wakelock_stats.last_acquired_timestamp_ms;
+  if (delta_ms < wakelock_stats.min_acquired_interval_ms ||
+      wakelock_stats.released_count == 1) {
+    wakelock_stats.min_acquired_interval_ms = delta_ms;
+  }
+  if (delta_ms > wakelock_stats.max_acquired_interval_ms) {
+    wakelock_stats.max_acquired_interval_ms = delta_ms;
+  }
+  wakelock_stats.last_acquired_interval_ms = delta_ms;
+  wakelock_stats.total_acquired_interval_ms += delta_ms;
+
+  pthread_mutex_unlock(&monitor);
+
+  metrics_wake_event(WAKE_EVENT_RELEASED, NULL, WAKE_LOCK_ID, now_ms);
+}
+
+void wakelock_debug_dump(int fd) {
+  const period_ms_t now_ms = now();
+
+  // Need to keep track for lock errors - e.g., the "monitor" mutex
+  // might not be initialized
+  const int lock_error = pthread_mutex_lock(&monitor);
+
+  // Compute the last acquired interval if the wakelock is still acquired
+  period_ms_t delta_ms = 0;
+  period_ms_t last_interval = wakelock_stats.last_acquired_interval_ms;
+  period_ms_t min_interval = wakelock_stats.min_acquired_interval_ms;
+  period_ms_t max_interval = wakelock_stats.max_acquired_interval_ms;
+  period_ms_t ave_interval = 0;
+
+  if (wakelock_stats.is_acquired) {
+    delta_ms = now_ms - wakelock_stats.last_acquired_timestamp_ms;
+    if (delta_ms > max_interval)
+      max_interval = delta_ms;
+    if (delta_ms < min_interval)
+      min_interval = delta_ms;
+    last_interval = delta_ms;
+  }
+  period_ms_t total_interval =
+    wakelock_stats.total_acquired_interval_ms + delta_ms;
+
+  if (wakelock_stats.acquired_count > 0)
+    ave_interval = total_interval / wakelock_stats.acquired_count;
+
+  dprintf(fd, "\nBluetooth Wakelock Statistics:\n");
+  dprintf(fd, "  Is acquired                    : %s\n",
+          wakelock_stats.is_acquired? "true" : "false");
+  dprintf(fd, "  Acquired/released count        : %zu / %zu\n",
+          wakelock_stats.acquired_count, wakelock_stats.released_count);
+  dprintf(fd, "  Acquired/released error count  : %zu / %zu\n",
+          wakelock_stats.acquired_errors, wakelock_stats.released_errors);
+  dprintf(fd, "  Last acquire/release error code: %d / %d\n",
+          wakelock_stats.last_acquired_error, wakelock_stats.last_released_error);
+  dprintf(fd, "  Last acquired time (ms)        : %llu\n",
+          (unsigned long long)last_interval);
+  dprintf(fd, "  Acquired time min/max/avg (ms) : %llu / %llu / %llu\n",
+          (unsigned long long)min_interval, (unsigned long long)max_interval,
+          (unsigned long long)ave_interval);
+  dprintf(fd, "  Total acquired time (ms)       : %llu\n",
+          (unsigned long long)total_interval);
+  dprintf(fd, "  Total run time (ms)            : %llu\n",
+          (unsigned long long)(now_ms - wakelock_stats.last_reset_timestamp_ms));
+
+  if (lock_error == 0)
+    pthread_mutex_unlock(&monitor);
+}
diff --git a/rtkbt/code/bt/osi/test/AlarmTestHarness.cpp b/rtkbt/code/bt/osi/test/AlarmTestHarness.cpp
new file mode 100755
index 0000000..32fde6d
--- /dev/null
+++ b/rtkbt/code/bt/osi/test/AlarmTestHarness.cpp
@@ -0,0 +1,127 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#include "AlarmTestHarness.h"
+
+#include <fcntl.h>
+#include <sys/mman.h>
+#include <unistd.h>
+
+#include <hardware/bluetooth.h>
+
+extern "C" {
+#include "osi/include/alarm.h"
+#include "osi/include/allocation_tracker.h"
+#include "osi/include/wakelock.h"
+}
+
+static timer_t timer;
+static alarm_cb saved_callback;
+static void *saved_data;
+static AlarmTestHarness *current_harness;
+
+static void timer_callback(void *) {
+  saved_callback(saved_data);
+}
+
+void AlarmTestHarness::SetUp() {
+  AllocationTestHarness::SetUp();
+
+  current_harness = this;
+  TIMER_INTERVAL_FOR_WAKELOCK_IN_MS = 100;
+
+  struct sigevent sigevent;
+  memset(&sigevent, 0, sizeof(sigevent));
+  sigevent.sigev_notify = SIGEV_THREAD;
+  sigevent.sigev_notify_function = (void (*)(union sigval))timer_callback;
+  sigevent.sigev_value.sival_ptr = NULL;
+  timer_create(CLOCK_BOOTTIME, &sigevent, &timer);
+
+  // TODO (jamuraa): maybe use base::CreateNewTempDirectory instead?
+#if defined(OS_GENERIC)
+  tmp_dir_ = "/tmp/btwlXXXXXX";
+#else  // !defined(OS_GENERIC)
+  tmp_dir_ = "/data/local/tmp/btwlXXXXXX";
+#endif  // !defined(OS_GENERIC)
+
+  char *buffer = const_cast<char *>(tmp_dir_.c_str());
+  char *dtemp = mkdtemp(buffer);
+  if (!dtemp) {
+    perror("Can't make wake lock test directory: ");
+    assert(false);
+  }
+
+  lock_path_ = tmp_dir_ + "/wake_lock";
+  unlock_path_ = tmp_dir_ + "/wake_unlock";
+
+  creat(lock_path_.c_str(), S_IRWXU);
+  creat(unlock_path_.c_str(), S_IRWXU);
+
+  wakelock_set_paths(lock_path_.c_str(), unlock_path_.c_str());
+}
+
+void AlarmTestHarness::TearDown() {
+  alarm_cleanup();
+  wakelock_cleanup();
+
+  // clean up the temp wake lock directory
+  unlink(lock_path_.c_str());
+  unlink(unlock_path_.c_str());
+  rmdir(tmp_dir_.c_str());
+
+  timer_delete(timer);
+  AllocationTestHarness::TearDown();
+}
+
+
+bool AlarmTestHarness::WakeLockHeld() {
+  bool held = false;
+
+  int lock_fd = open(lock_path_.c_str(), O_RDONLY);
+  assert(lock_fd >= 0);
+
+  int unlock_fd = open(unlock_path_.c_str(), O_RDONLY);
+  assert(unlock_fd >= 0);
+
+  struct stat lock_stat, unlock_stat;
+  fstat(lock_fd, &lock_stat);
+  fstat(unlock_fd, &unlock_stat);
+
+  assert(lock_stat.st_size >= unlock_stat.st_size);
+
+  void *lock_file = mmap(nullptr, lock_stat.st_size, PROT_READ,
+                         MAP_PRIVATE, lock_fd, 0);
+
+  void *unlock_file = mmap(nullptr, unlock_stat.st_size, PROT_READ,
+                           MAP_PRIVATE, unlock_fd, 0);
+
+  if (memcmp(lock_file, unlock_file, unlock_stat.st_size) == 0) {
+    held = lock_stat.st_size > unlock_stat.st_size;
+  } else {
+    // these files should always either be with a lock that has more,
+    // or equal.
+    assert(false);
+  }
+
+  munmap(lock_file, lock_stat.st_size);
+  munmap(unlock_file, unlock_stat.st_size);
+  close(lock_fd);
+  close(unlock_fd);
+
+  return held;
+}
diff --git a/rtkbt/code/bt/osi/test/AlarmTestHarness.h b/rtkbt/code/bt/osi/test/AlarmTestHarness.h
new file mode 100755
index 0000000..dbd09b0
--- /dev/null
+++ b/rtkbt/code/bt/osi/test/AlarmTestHarness.h
@@ -0,0 +1,37 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+#include "AllocationTestHarness.h"
+
+extern int64_t TIMER_INTERVAL_FOR_WAKELOCK_IN_MS;
+
+class AlarmTestHarness : public AllocationTestHarness {
+  protected:
+    virtual void SetUp();
+    virtual void TearDown();
+
+    std::string tmp_dir_;
+    std::string lock_path_;
+    std::string unlock_path_;
+
+  public:
+    // Returns true if a wake lock is held.
+    bool WakeLockHeld();
+};
diff --git a/rtkbt/code/bt/osi/test/AllocationTestHarness.cpp b/rtkbt/code/bt/osi/test/AllocationTestHarness.cpp
new file mode 100755
index 0000000..0132c73
--- /dev/null
+++ b/rtkbt/code/bt/osi/test/AllocationTestHarness.cpp
@@ -0,0 +1,34 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#include <gtest/gtest.h>
+
+#include "osi/test/AllocationTestHarness.h"
+
+extern "C" {
+#include "osi/include/allocation_tracker.h"
+}
+
+void AllocationTestHarness::SetUp() {
+  allocation_tracker_init();
+  allocation_tracker_reset();
+}
+
+void AllocationTestHarness::TearDown() {
+  EXPECT_EQ(0U, allocation_tracker_expect_no_allocations()) << "not all memory freed";
+}
diff --git a/rtkbt/code/bt/osi/test/AllocationTestHarness.h b/rtkbt/code/bt/osi/test/AllocationTestHarness.h
new file mode 100755
index 0000000..65fc0b0
--- /dev/null
+++ b/rtkbt/code/bt/osi/test/AllocationTestHarness.h
@@ -0,0 +1,27 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+#include <gtest/gtest.h>
+
+class AllocationTestHarness : public ::testing::Test {
+  protected:
+    virtual void SetUp();
+    virtual void TearDown();
+};
diff --git a/rtkbt/code/bt/osi/test/alarm_test.cpp b/rtkbt/code/bt/osi/test/alarm_test.cpp
new file mode 100755
index 0000000..4ef5805
--- /dev/null
+++ b/rtkbt/code/bt/osi/test/alarm_test.cpp
@@ -0,0 +1,465 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#include <gtest/gtest.h>
+
+#include "AlarmTestHarness.h"
+
+extern "C" {
+#include "osi/include/alarm.h"
+#include "osi/include/fixed_queue.h"
+#include "osi/include/osi.h"
+#include "osi/include/semaphore.h"
+#include "osi/include/thread.h"
+}
+
+static semaphore_t *semaphore;
+static int cb_counter;
+static int cb_misordered_counter;
+
+static const uint64_t EPSILON_MS = 5;
+
+static void msleep(uint64_t ms) {
+  usleep(ms * 1000);
+}
+
+class AlarmTest : public AlarmTestHarness {
+  protected:
+    virtual void SetUp() {
+      AlarmTestHarness::SetUp();
+      cb_counter = 0;
+      cb_misordered_counter = 0;
+
+      semaphore = semaphore_new(0);
+    }
+
+    virtual void TearDown() {
+      semaphore_free(semaphore);
+      AlarmTestHarness::TearDown();
+    }
+};
+
+static void cb(UNUSED_ATTR void *data) {
+  ++cb_counter;
+  semaphore_post(semaphore);
+}
+
+static void ordered_cb(void *data) {
+  int i = PTR_TO_INT(data);
+  if (i != cb_counter)
+    cb_misordered_counter++;
+  ++cb_counter;
+  semaphore_post(semaphore);
+}
+
+TEST_F(AlarmTest, test_new_free_simple) {
+  alarm_t *alarm = alarm_new("alarm_test.test_new_free_simple");
+  ASSERT_TRUE(alarm != NULL);
+  alarm_free(alarm);
+}
+
+TEST_F(AlarmTest, test_free_null) {
+  alarm_free(NULL);
+}
+
+TEST_F(AlarmTest, test_simple_cancel) {
+  alarm_t *alarm = alarm_new("alarm_test.test_simple_cancel");
+  alarm_cancel(alarm);
+  alarm_free(alarm);
+}
+
+TEST_F(AlarmTest, test_cancel) {
+  alarm_t *alarm = alarm_new("alarm_test.test_cancel");
+  alarm_set(alarm, 10, cb, NULL);
+  alarm_cancel(alarm);
+
+  msleep(10 + EPSILON_MS);
+
+  EXPECT_EQ(cb_counter, 0);
+  EXPECT_FALSE(WakeLockHeld());
+  alarm_free(alarm);
+}
+
+TEST_F(AlarmTest, test_cancel_idempotent) {
+  alarm_t *alarm = alarm_new("alarm_test.test_cancel_idempotent");
+  alarm_set(alarm, 10, cb, NULL);
+  alarm_cancel(alarm);
+  alarm_cancel(alarm);
+  alarm_cancel(alarm);
+  alarm_free(alarm);
+}
+
+TEST_F(AlarmTest, test_set_short) {
+  alarm_t *alarm = alarm_new("alarm_test.test_set_short");
+
+  alarm_set(alarm, 10, cb, NULL);
+
+  EXPECT_EQ(cb_counter, 0);
+  EXPECT_TRUE(WakeLockHeld());
+
+  semaphore_wait(semaphore);
+
+  EXPECT_EQ(cb_counter, 1);
+  EXPECT_FALSE(WakeLockHeld());
+
+  alarm_free(alarm);
+}
+
+TEST_F(AlarmTest, test_set_short_periodic) {
+  alarm_t *alarm = alarm_new_periodic("alarm_test.test_set_short_periodic");
+
+  alarm_set(alarm, 10, cb, NULL);
+
+  EXPECT_EQ(cb_counter, 0);
+  EXPECT_TRUE(WakeLockHeld());
+
+  for (int i = 1; i <= 10; i++) {
+    semaphore_wait(semaphore);
+
+    EXPECT_GE(cb_counter, i);
+    EXPECT_TRUE(WakeLockHeld());
+  }
+  alarm_cancel(alarm);
+  EXPECT_FALSE(WakeLockHeld());
+
+  alarm_free(alarm);
+}
+
+TEST_F(AlarmTest, test_set_zero_periodic) {
+  alarm_t *alarm = alarm_new_periodic("alarm_test.test_set_zero_periodic");
+
+  alarm_set(alarm, 0, cb, NULL);
+
+  EXPECT_TRUE(WakeLockHeld());
+
+  for (int i = 1; i <= 10; i++) {
+    semaphore_wait(semaphore);
+
+    EXPECT_GE(cb_counter, i);
+    EXPECT_TRUE(WakeLockHeld());
+  }
+  alarm_cancel(alarm);
+  EXPECT_FALSE(WakeLockHeld());
+
+  alarm_free(alarm);
+}
+
+TEST_F(AlarmTest, test_set_long) {
+  alarm_t *alarm = alarm_new("alarm_test.test_set_long");
+  alarm_set(alarm, TIMER_INTERVAL_FOR_WAKELOCK_IN_MS + EPSILON_MS, cb, NULL);
+
+  EXPECT_EQ(cb_counter, 0);
+  EXPECT_FALSE(WakeLockHeld());
+
+  semaphore_wait(semaphore);
+
+  EXPECT_EQ(cb_counter, 1);
+  EXPECT_FALSE(WakeLockHeld());
+
+  alarm_free(alarm);
+}
+
+TEST_F(AlarmTest, test_set_short_short) {
+  alarm_t *alarm[2] = {
+    alarm_new("alarm_test.test_set_short_short_0"),
+    alarm_new("alarm_test.test_set_short_short_1")
+  };
+
+  alarm_set(alarm[0], 10, cb, NULL);
+  alarm_set(alarm[1], 20, cb, NULL);
+
+  EXPECT_EQ(cb_counter, 0);
+  EXPECT_TRUE(WakeLockHeld());
+
+  semaphore_wait(semaphore);
+
+  EXPECT_EQ(cb_counter, 1);
+  EXPECT_TRUE(WakeLockHeld());
+
+  semaphore_wait(semaphore);
+
+  EXPECT_EQ(cb_counter, 2);
+  EXPECT_FALSE(WakeLockHeld());
+
+  alarm_free(alarm[0]);
+  alarm_free(alarm[1]);
+}
+
+TEST_F(AlarmTest, test_set_short_long) {
+  alarm_t *alarm[2] = {
+    alarm_new("alarm_test.test_set_short_long_0"),
+    alarm_new("alarm_test.test_set_short_long_1")
+  };
+
+  alarm_set(alarm[0], 10, cb, NULL);
+  alarm_set(alarm[1], 10 + TIMER_INTERVAL_FOR_WAKELOCK_IN_MS + EPSILON_MS, cb, NULL);
+
+  EXPECT_EQ(cb_counter, 0);
+  EXPECT_TRUE(WakeLockHeld());
+
+  semaphore_wait(semaphore);
+
+  EXPECT_EQ(cb_counter, 1);
+  EXPECT_FALSE(WakeLockHeld());
+
+  semaphore_wait(semaphore);
+
+  EXPECT_EQ(cb_counter, 2);
+  EXPECT_FALSE(WakeLockHeld());
+
+  alarm_free(alarm[0]);
+  alarm_free(alarm[1]);
+}
+
+TEST_F(AlarmTest, test_set_long_long) {
+  alarm_t *alarm[2] = {
+    alarm_new("alarm_test.test_set_long_long_0"),
+    alarm_new("alarm_test.test_set_long_long_1")
+  };
+
+  alarm_set(alarm[0], TIMER_INTERVAL_FOR_WAKELOCK_IN_MS + EPSILON_MS, cb, NULL);
+  alarm_set(alarm[1], 2 * (TIMER_INTERVAL_FOR_WAKELOCK_IN_MS + EPSILON_MS), cb, NULL);
+
+  EXPECT_EQ(cb_counter, 0);
+  EXPECT_FALSE(WakeLockHeld());
+
+  semaphore_wait(semaphore);
+
+  EXPECT_EQ(cb_counter, 1);
+  EXPECT_FALSE(WakeLockHeld());
+
+  semaphore_wait(semaphore);
+
+  EXPECT_EQ(cb_counter, 2);
+  EXPECT_FALSE(WakeLockHeld());
+
+  alarm_free(alarm[0]);
+  alarm_free(alarm[1]);
+}
+
+TEST_F(AlarmTest, test_is_scheduled) {
+  alarm_t *alarm = alarm_new("alarm_test.test_is_scheduled");
+
+  EXPECT_FALSE(alarm_is_scheduled((alarm_t *)NULL));
+  EXPECT_FALSE(alarm_is_scheduled(alarm));
+  alarm_set(alarm, TIMER_INTERVAL_FOR_WAKELOCK_IN_MS + EPSILON_MS, cb, NULL);
+  EXPECT_TRUE(alarm_is_scheduled(alarm));
+
+  EXPECT_EQ(cb_counter, 0);
+  EXPECT_FALSE(WakeLockHeld());
+
+  semaphore_wait(semaphore);
+
+  EXPECT_FALSE(alarm_is_scheduled(alarm));
+  EXPECT_EQ(cb_counter, 1);
+  EXPECT_FALSE(WakeLockHeld());
+
+  alarm_free(alarm);
+}
+
+// Test whether the callbacks are invoked in the expected order
+TEST_F(AlarmTest, test_callback_ordering) {
+  alarm_t *alarms[100];
+
+  for (int i = 0; i < 100; i++) {
+    const std::string alarm_name = "alarm_test.test_callback_ordering[" +
+      std::to_string(i) + "]";
+    alarms[i] = alarm_new(alarm_name.c_str());
+  }
+
+  for (int i = 0; i < 100; i++) {
+    alarm_set(alarms[i], 100, ordered_cb, INT_TO_PTR(i));
+  }
+
+  for (int i = 1; i <= 100; i++) {
+    semaphore_wait(semaphore);
+    EXPECT_GE(cb_counter, i);
+  }
+  EXPECT_EQ(cb_counter, 100);
+  EXPECT_EQ(cb_misordered_counter, 0);
+
+  for (int i = 0; i < 100; i++)
+    alarm_free(alarms[i]);
+
+  EXPECT_FALSE(WakeLockHeld());
+}
+
+// Test whether the callbacks are involed in the expected order on a
+// separate queue.
+TEST_F(AlarmTest, test_callback_ordering_on_queue) {
+  alarm_t *alarms[100];
+  fixed_queue_t *queue = fixed_queue_new(SIZE_MAX);
+  thread_t *thread = thread_new("timers.test_callback_ordering_on_queue.thread");
+
+  alarm_register_processing_queue(queue, thread);
+
+  for (int i = 0; i < 100; i++) {
+    const std::string alarm_name =
+      "alarm_test.test_callback_ordering_on_queue[" +
+      std::to_string(i) + "]";
+    alarms[i] = alarm_new(alarm_name.c_str());
+  }
+
+  for (int i = 0; i < 100; i++) {
+    alarm_set_on_queue(alarms[i], 100, ordered_cb, INT_TO_PTR(i), queue);
+  }
+
+  for (int i = 1; i <= 100; i++) {
+    semaphore_wait(semaphore);
+    EXPECT_GE(cb_counter, i);
+  }
+  EXPECT_EQ(cb_counter, 100);
+  EXPECT_EQ(cb_misordered_counter, 0);
+
+  for (int i = 0; i < 100; i++)
+    alarm_free(alarms[i]);
+
+  EXPECT_FALSE(WakeLockHeld());
+
+  alarm_unregister_processing_queue(queue);
+  fixed_queue_free(queue, NULL);
+  thread_free(thread);
+}
+
+// Test whether unregistering a processing queue cancels all timers using
+// that queue.
+TEST_F(AlarmTest, test_unregister_processing_queue) {
+  alarm_t *alarms[100];
+  fixed_queue_t *queue = fixed_queue_new(SIZE_MAX);
+  thread_t *thread =
+    thread_new("timers.test_unregister_processing_queue.thread");
+
+  alarm_register_processing_queue(queue, thread);
+
+  for (int i = 0; i < 100; i++) {
+    const std::string alarm_name =
+      "alarm_test.test_unregister_processing_queue[" +
+      std::to_string(i) + "]";
+    alarms[i] = alarm_new(alarm_name.c_str());
+  }
+
+  // Schedule half of the timers to expire soon, and the rest far in the future
+  for (int i = 0; i < 50; i++) {
+    alarm_set_on_queue(alarms[i], 100, ordered_cb, INT_TO_PTR(i), queue);
+  }
+  for (int i = 50; i < 100; i++) {
+    alarm_set_on_queue(alarms[i], 1000 * 1000, ordered_cb, INT_TO_PTR(i), queue);
+  }
+
+  // Wait until half of the timers have expired
+  for (int i = 1; i <= 50; i++) {
+    semaphore_wait(semaphore);
+    EXPECT_GE(cb_counter, i);
+  }
+  EXPECT_EQ(cb_counter, 50);
+  EXPECT_EQ(cb_misordered_counter, 0);
+
+  // Test that only the expired timers are not scheduled
+  for (int i = 0; i < 50; i++) {
+    EXPECT_FALSE(alarm_is_scheduled(alarms[i]));
+  }
+  for (int i = 50; i < 100; i++) {
+    EXPECT_TRUE(alarm_is_scheduled(alarms[i]));
+  }
+
+  alarm_unregister_processing_queue(queue);
+
+  // Test that none of the timers are scheduled
+  for (int i = 0; i < 100; i++) {
+    EXPECT_FALSE(alarm_is_scheduled(alarms[i]));
+  }
+
+  for (int i = 0; i < 100; i++) {
+    alarm_free(alarms[i]);
+  }
+
+  EXPECT_FALSE(WakeLockHeld());
+
+  fixed_queue_free(queue, NULL);
+  thread_free(thread);
+}
+
+// Test whether unregistering a processing queue cancels all periodic timers
+// using that queue.
+TEST_F(AlarmTest, test_periodic_unregister_processing_queue) {
+  alarm_t *alarms[5];
+  fixed_queue_t *queue = fixed_queue_new(SIZE_MAX);
+  thread_t *thread =
+    thread_new("timers.test_periodic_unregister_processing_queue.thread");
+
+  alarm_register_processing_queue(queue, thread);
+
+  for (int i = 0; i < 5; i++) {
+    const std::string alarm_name =
+      "alarm_test.test_periodic_unregister_processing_queue[" +
+      std::to_string(i) + "]";
+    alarms[i] = alarm_new_periodic(alarm_name.c_str());
+  }
+
+  // Schedule each of the timers with different period
+  for (int i = 0; i < 5; i++) {
+    alarm_set_on_queue(alarms[i], 20 + i, cb, INT_TO_PTR(i), queue);
+  }
+  EXPECT_TRUE(WakeLockHeld());
+
+  for (int i = 1; i <= 20; i++) {
+    semaphore_wait(semaphore);
+
+    EXPECT_GE(cb_counter, i);
+    EXPECT_TRUE(WakeLockHeld());
+  }
+
+  // Test that all timers are still scheduled
+  for (int i = 0; i < 5; i++) {
+    EXPECT_TRUE(alarm_is_scheduled(alarms[i]));
+  }
+
+  alarm_unregister_processing_queue(queue);
+
+  int saved_cb_counter = cb_counter;
+
+  // Test that none of the timers are scheduled
+  for (int i = 0; i < 5; i++) {
+    EXPECT_FALSE(alarm_is_scheduled(alarms[i]));
+  }
+
+  // Sleep for 500ms and test again that the cb_counter hasn't been modified
+  usleep(500 * 1000);
+  EXPECT_TRUE(cb_counter == saved_cb_counter);
+
+  for (int i = 0; i < 5; i++) {
+    alarm_free(alarms[i]);
+  }
+
+  EXPECT_FALSE(WakeLockHeld());
+
+  fixed_queue_free(queue, NULL);
+  thread_free(thread);
+}
+
+// Try to catch any race conditions between the timer callback and |alarm_free|.
+TEST_F(AlarmTest, test_callback_free_race) {
+  for (int i = 0; i < 1000; ++i) {
+    const std::string alarm_name = "alarm_test.test_callback_free_race[" +
+      std::to_string(i) + "]";
+    alarm_t *alarm = alarm_new(alarm_name.c_str());
+    alarm_set(alarm, 0, cb, NULL);
+    alarm_free(alarm);
+  }
+  alarm_cleanup();
+}
diff --git a/rtkbt/code/bt/osi/test/allocation_tracker_test.cpp b/rtkbt/code/bt/osi/test/allocation_tracker_test.cpp
new file mode 100755
index 0000000..ab5f61f
--- /dev/null
+++ b/rtkbt/code/bt/osi/test/allocation_tracker_test.cpp
@@ -0,0 +1,60 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#include <gtest/gtest.h>
+
+extern "C" {
+#include "osi/include/allocation_tracker.h"
+
+void allocation_tracker_uninit(void);
+}
+
+static const allocator_id_t allocator_id = 5;
+
+TEST(AllocationTrackerTest, test_uninit_no_bad_effects) {
+  void *dummy_allocation = malloc(4);
+
+  // Ensure uninitialized state (previous tests may have called init)
+  allocation_tracker_uninit();
+
+  EXPECT_EQ(4U, allocation_tracker_resize_for_canary(4));
+  allocation_tracker_notify_alloc(allocator_id, dummy_allocation, 4);
+  EXPECT_EQ(0U, allocation_tracker_expect_no_allocations()); // should not have registered an allocation
+  allocation_tracker_notify_free(allocator_id, dummy_allocation);
+  EXPECT_EQ(0U, allocation_tracker_expect_no_allocations());
+
+  free(dummy_allocation);
+}
+
+TEST(AllocationTrackerTest, test_canaries_on) {
+  allocation_tracker_uninit();
+  allocation_tracker_init();
+
+  size_t with_canary_size = allocation_tracker_resize_for_canary(4);
+  EXPECT_TRUE(with_canary_size > 4);
+
+  void *dummy_allocation = malloc(with_canary_size);
+  void *useable_ptr = allocation_tracker_notify_alloc(allocator_id, dummy_allocation, 4);
+  EXPECT_TRUE(useable_ptr > dummy_allocation);
+  EXPECT_EQ(4U, allocation_tracker_expect_no_allocations()); // should have registered the allocation
+  void *freeable_ptr = allocation_tracker_notify_free(allocator_id, useable_ptr);
+  EXPECT_EQ(dummy_allocation, freeable_ptr);
+  EXPECT_EQ(0U, allocation_tracker_expect_no_allocations());
+
+  free(dummy_allocation);
+}
diff --git a/rtkbt/code/bt/osi/test/allocator_test.cpp b/rtkbt/code/bt/osi/test/allocator_test.cpp
new file mode 100755
index 0000000..19c175b
--- /dev/null
+++ b/rtkbt/code/bt/osi/test/allocator_test.cpp
@@ -0,0 +1,54 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2015 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License
+ *
+ ******************************************************************************/
+#include <cstring>
+
+#include <gtest/gtest.h>
+
+#include "AllocationTestHarness.h"
+
+extern "C" {
+#include "osi/include/allocator.h"
+}
+
+class AllocatorTest : public AllocationTestHarness {};
+
+TEST_F(AllocatorTest, test_osi_strndup) {
+  char str[] = "IloveBluetooth";
+  size_t len = strlen(str);
+  char *copy_str = NULL;
+
+  // len == 0
+  copy_str = osi_strndup(str, 0);
+  EXPECT_EQ(0, strcmp(copy_str, ""));
+  osi_free(copy_str);
+
+  // len == strlen(str)
+  copy_str = osi_strndup(str, len);
+  EXPECT_EQ(0, strcmp(str, copy_str));
+  osi_free(copy_str);
+
+  // len < strlen(str)
+  copy_str = osi_strndup(str, len - 5);
+  EXPECT_EQ(0, strcmp("IloveBlue", copy_str));
+  osi_free(copy_str);
+
+  // len > strlen(str)
+  copy_str = osi_strndup(str, len + 5);
+  EXPECT_EQ(0, strcmp(str, copy_str));
+  osi_free(copy_str);
+}
diff --git a/rtkbt/code/bt/osi/test/array_test.cpp b/rtkbt/code/bt/osi/test/array_test.cpp
new file mode 100755
index 0000000..9cd40dc
--- /dev/null
+++ b/rtkbt/code/bt/osi/test/array_test.cpp
@@ -0,0 +1,77 @@
+#include <gtest/gtest.h>
+
+#include "AllocationTestHarness.h"
+
+extern "C" {
+#include "osi/include/array.h"
+}
+
+class ArrayTest : public AllocationTestHarness {};
+
+TEST_F(ArrayTest, test_new_free_simple) {
+  array_t *array = array_new(4);
+  ASSERT_TRUE(array != NULL);
+  array_free(array);
+}
+
+TEST_F(ArrayTest, test_free_null) {
+  array_free(NULL);
+}
+
+TEST_F(ArrayTest, test_invalid_ptr) {
+  array_t *array = array_new(4);
+  EXPECT_DEATH(array_ptr(array), "");
+  array_free(array);
+}
+
+TEST_F(ArrayTest, test_invalid_at) {
+  array_t *array = array_new(4);
+  EXPECT_DEATH(array_at(array, 1), "");
+  array_free(array);
+}
+
+TEST_F(ArrayTest, test_append_value) {
+  array_t *array = array_new(sizeof(int));
+  for (int i = 0; i < 100; ++i) {
+    array_append_value(array, i * i);
+  }
+  for (int i = 0; i < 100; ++i) {
+    EXPECT_EQ(*(int *)array_at(array, i), i * i);
+  }
+  array_free(array);
+}
+
+TEST_F(ArrayTest, test_append_ptr) {
+  int items[100];
+  array_t *array = array_new(sizeof(int));
+  for (int i = 0; i < 100; ++i) {
+    items[i] = i * i;
+    array_append_ptr(array, &items[i]);
+  }
+  for (int i = 0; i < 100; ++i) {
+    EXPECT_EQ(*(int *)array_at(array, i), i * i);
+  }
+  array_free(array);
+}
+
+TEST_F(ArrayTest, test_large_element) {
+  char strings[][128] = {
+    "string 1",
+    "string 2",
+    "string 3",
+    "string 4",
+    "string 5",
+    "string 6",
+    "string 7",
+    "string 8",
+  };
+
+  array_t *array = array_new(128);
+  for (int i = 0; i < 100; ++i) {
+    array_append_ptr(array, strings[i % 8]);
+  }
+  for (int i = 0; i < 100; ++i) {
+    EXPECT_TRUE(!memcmp(array_at(array, i), strings[i % 8], 128));
+  }
+  array_free(array);
+}
diff --git a/rtkbt/code/bt/osi/test/config_test.cpp b/rtkbt/code/bt/osi/test/config_test.cpp
new file mode 100755
index 0000000..0fb2fe1
--- /dev/null
+++ b/rtkbt/code/bt/osi/test/config_test.cpp
@@ -0,0 +1,203 @@
+#include <gtest/gtest.h>
+
+#include "AllocationTestHarness.h"
+
+extern "C" {
+#include "osi/include/config.h"
+}
+
+static const char CONFIG_FILE[] = "/data/local/tmp/config_test.conf";
+static const char CONFIG_FILE_CONTENT[] =
+"                                                                                    \n\
+first_key=value                                                                      \n\
+                                                                                     \n\
+# Device ID (DID) configuration                                                      \n\
+[DID]                                                                                \n\
+                                                                                     \n\
+# Record Number: 1, 2 or 3 - maximum of 3 records                                    \n\
+recordNumber = 1                                                                     \n\
+                                                                                     \n\
+# Primary Record - true or false (default)                                           \n\
+# There can be only one primary record                                               \n\
+primaryRecord = true                                                                 \n\
+                                                                                     \n\
+# Vendor ID '0xFFFF' indicates no Device ID Service Record is present in the device  \n\
+# 0x000F = Broadcom Corporation (default)                                            \n\
+#vendorId = 0x000F                                                                   \n\
+                                                                                     \n\
+# Vendor ID Source                                                                   \n\
+# 0x0001 = Bluetooth SIG assigned Device ID Vendor ID value (default)                \n\
+# 0x0002 = USB Implementer's Forum assigned Device ID Vendor ID value                \n\
+#vendorIdSource = 0x0001                                                             \n\
+                                                                                     \n\
+# Product ID & Product Version                                                       \n\
+# Per spec DID v1.3 0xJJMN for version is interpreted as JJ.M.N                      \n\
+# JJ: major version number, M: minor version number, N: sub-minor version number     \n\
+# For example: 1200, v14.3.6                                                         \n\
+productId = 0x1200                                                                   \n\
+version = 0x1111                                                                     \n\
+                                                                                     \n\
+# Optional attributes                                                                \n\
+#clientExecutableURL =                                                               \n\
+#serviceDescription =                                                                \n\
+#documentationURL =                                                                  \n\
+                                                                                     \n\
+# Additional optional DID records. Bluedroid supports up to 3 records.               \n\
+[DID]                                                                                \n\
+[DID]                                                                                \n\
+version = 0x1436                                                                     \n\
+";
+
+class ConfigTest : public AllocationTestHarness {
+  protected:
+    virtual void SetUp() {
+      AllocationTestHarness::SetUp();
+      FILE *fp = fopen(CONFIG_FILE, "wt");
+      fwrite(CONFIG_FILE_CONTENT, 1, sizeof(CONFIG_FILE_CONTENT), fp);
+      fclose(fp);
+    }
+};
+
+TEST_F(ConfigTest, config_new_empty) {
+  config_t *config = config_new_empty();
+  EXPECT_TRUE(config != NULL);
+  config_free(config);
+}
+
+TEST_F(ConfigTest, config_new_no_file) {
+  config_t *config = config_new("/meow");
+  EXPECT_TRUE(config == NULL);
+  config_free(config);
+}
+
+TEST_F(ConfigTest, config_new) {
+  config_t *config = config_new(CONFIG_FILE);
+  EXPECT_TRUE(config != NULL);
+  config_free(config);
+}
+
+TEST_F(ConfigTest, config_free_null) {
+  config_free(NULL);
+}
+
+TEST_F(ConfigTest, config_new_clone) {
+  config_t *config = config_new(CONFIG_FILE);
+  config_t *clone = config_new_clone(config);
+
+  config_set_string(clone, CONFIG_DEFAULT_SECTION, "first_key", "not_value");
+
+  EXPECT_STRNE(config_get_string(config, CONFIG_DEFAULT_SECTION, "first_key", "one"),
+               config_get_string(clone, CONFIG_DEFAULT_SECTION, "first_key", "one"));
+
+  config_free(config);
+  config_free(clone);
+}
+
+TEST_F(ConfigTest, config_has_section) {
+  config_t *config = config_new(CONFIG_FILE);
+  EXPECT_TRUE(config_has_section(config, "DID"));
+  config_free(config);
+}
+
+TEST_F(ConfigTest, config_has_key_in_default_section) {
+  config_t *config = config_new(CONFIG_FILE);
+  EXPECT_TRUE(config_has_key(config, CONFIG_DEFAULT_SECTION, "first_key"));
+  EXPECT_STREQ(config_get_string(config, CONFIG_DEFAULT_SECTION, "first_key", "meow"), "value");
+  config_free(config);
+}
+
+TEST_F(ConfigTest, config_has_keys) {
+  config_t *config = config_new(CONFIG_FILE);
+  EXPECT_TRUE(config_has_key(config, "DID", "recordNumber"));
+  EXPECT_TRUE(config_has_key(config, "DID", "primaryRecord"));
+  EXPECT_TRUE(config_has_key(config, "DID", "productId"));
+  EXPECT_TRUE(config_has_key(config, "DID", "version"));
+  config_free(config);
+}
+
+TEST_F(ConfigTest, config_no_bad_keys) {
+  config_t *config = config_new(CONFIG_FILE);
+  EXPECT_FALSE(config_has_key(config, "DID_BAD", "primaryRecord"));
+  EXPECT_FALSE(config_has_key(config, "DID", "primaryRecord_BAD"));
+  EXPECT_FALSE(config_has_key(config, CONFIG_DEFAULT_SECTION, "primaryRecord"));
+  config_free(config);
+}
+
+TEST_F(ConfigTest, config_get_int_version) {
+  config_t *config = config_new(CONFIG_FILE);
+  EXPECT_EQ(config_get_int(config, "DID", "version", 0), 0x1436);
+  config_free(config);
+}
+
+TEST_F(ConfigTest, config_get_int_default) {
+  config_t *config = config_new(CONFIG_FILE);
+  EXPECT_EQ(config_get_int(config, "DID", "primaryRecord", 123), 123);
+  config_free(config);
+}
+
+TEST_F(ConfigTest, config_remove_section) {
+  config_t *config = config_new(CONFIG_FILE);
+  EXPECT_TRUE(config_remove_section(config, "DID"));
+  EXPECT_FALSE(config_has_section(config, "DID"));
+  EXPECT_FALSE(config_has_key(config, "DID", "productId"));
+  config_free(config);
+}
+
+TEST_F(ConfigTest, config_remove_section_missing) {
+  config_t *config = config_new(CONFIG_FILE);
+  EXPECT_FALSE(config_remove_section(config, "not a section"));
+  config_free(config);
+}
+
+TEST_F(ConfigTest, config_remove_key) {
+  config_t *config = config_new(CONFIG_FILE);
+  EXPECT_EQ(config_get_int(config, "DID", "productId", 999), 0x1200);
+  EXPECT_TRUE(config_remove_key(config, "DID", "productId"));
+  EXPECT_FALSE(config_has_key(config, "DID", "productId"));
+  config_free(config);
+}
+
+TEST_F(ConfigTest, config_remove_key_missing) {
+  config_t *config = config_new(CONFIG_FILE);
+  EXPECT_EQ(config_get_int(config, "DID", "productId", 999), 0x1200);
+  EXPECT_TRUE(config_remove_key(config, "DID", "productId"));
+  EXPECT_EQ(config_get_int(config, "DID", "productId", 999), 999);
+  config_free(config);
+}
+
+TEST_F(ConfigTest, config_section_begin) {
+  config_t *config = config_new(CONFIG_FILE);
+  const config_section_node_t *section = config_section_begin(config);
+  EXPECT_TRUE(section != NULL);
+  const char *section_name = config_section_name(section);
+  EXPECT_TRUE(section != NULL);
+  EXPECT_TRUE(!strcmp(section_name, CONFIG_DEFAULT_SECTION));
+  config_free(config);
+}
+
+TEST_F(ConfigTest, config_section_next) {
+  config_t *config = config_new(CONFIG_FILE);
+  const config_section_node_t *section = config_section_begin(config);
+  EXPECT_TRUE(section != NULL);
+  section = config_section_next(section);
+  EXPECT_TRUE(section != NULL);
+  const char *section_name = config_section_name(section);
+  EXPECT_TRUE(section != NULL);
+  EXPECT_TRUE(!strcmp(section_name, "DID"));
+  config_free(config);
+}
+
+TEST_F(ConfigTest, config_section_end) {
+  config_t *config = config_new(CONFIG_FILE);
+  const config_section_node_t * section = config_section_begin(config);
+  section = config_section_next(section);
+  section = config_section_next(section);
+  EXPECT_EQ(section, config_section_end(config));
+  config_free(config);
+}
+
+TEST_F(ConfigTest, config_save_basic) {
+  config_t *config = config_new(CONFIG_FILE);
+  EXPECT_TRUE(config_save(config, CONFIG_FILE));
+  config_free(config);
+}
diff --git a/rtkbt/code/bt/osi/test/data_dispatcher_test.cpp b/rtkbt/code/bt/osi/test/data_dispatcher_test.cpp
new file mode 100755
index 0000000..98354bc
--- /dev/null
+++ b/rtkbt/code/bt/osi/test/data_dispatcher_test.cpp
@@ -0,0 +1,253 @@
+#include <gtest/gtest.h>
+
+#include <climits>
+
+#include "AllocationTestHarness.h"
+
+extern "C" {
+#include "osi/include/data_dispatcher.h"
+#include "osi/include/fixed_queue.h"
+#include "osi/include/osi.h"
+}
+
+#define DUMMY_TYPE_0 34
+#define DUMMY_TYPE_1 42
+#define TYPE_EDGE_CASE_ZERO 0
+#define TYPE_EDGE_CASE_MAX INT_MAX
+
+#define DUMMY_QUEUE_SIZE 10
+
+class DataDispatcherTest : public AllocationTestHarness {};
+
+static char dummy_data_0[42] = "please test your code";
+static char dummy_data_1[42] = "testing is good for your sanity";
+
+TEST_F(DataDispatcherTest, test_new_free_simple) {
+  data_dispatcher_t *dispatcher = data_dispatcher_new("test_dispatcher");
+  ASSERT_TRUE(dispatcher != NULL);
+  data_dispatcher_free(dispatcher);
+}
+
+TEST_F(DataDispatcherTest, test_dispatch_single_to_nowhere) {
+  data_dispatcher_t *dispatcher = data_dispatcher_new("test_dispatcher");
+  EXPECT_FALSE(data_dispatcher_dispatch(dispatcher, DUMMY_TYPE_0, dummy_data_0));
+  data_dispatcher_free(dispatcher);
+}
+
+TEST_F(DataDispatcherTest, test_dispatch_single_to_single) {
+  data_dispatcher_t *dispatcher = data_dispatcher_new("test_dispatcher");
+
+  // Register a queue
+  fixed_queue_t *dummy_queue = fixed_queue_new(DUMMY_QUEUE_SIZE);
+  data_dispatcher_register(dispatcher, DUMMY_TYPE_0, dummy_queue);
+  EXPECT_TRUE(fixed_queue_is_empty(dummy_queue));
+
+  // Send data to the queue
+  EXPECT_TRUE(data_dispatcher_dispatch(dispatcher, DUMMY_TYPE_0, dummy_data_0));
+
+  // Did we get it?
+  EXPECT_FALSE(fixed_queue_is_empty(dummy_queue));
+  EXPECT_STREQ(dummy_data_0, (char *)fixed_queue_try_dequeue(dummy_queue));
+  EXPECT_TRUE(fixed_queue_is_empty(dummy_queue));
+
+  fixed_queue_free(dummy_queue, NULL);
+  data_dispatcher_free(dispatcher);
+}
+
+TEST_F(DataDispatcherTest, test_dispatch_single_to_multiple) {
+  data_dispatcher_t *dispatcher = data_dispatcher_new("test_dispatcher");
+
+  // Register two queues
+  fixed_queue_t *dummy_queue0 = fixed_queue_new(DUMMY_QUEUE_SIZE);
+  fixed_queue_t *dummy_queue1 = fixed_queue_new(DUMMY_QUEUE_SIZE);
+  data_dispatcher_register(dispatcher, DUMMY_TYPE_0, dummy_queue0);
+  data_dispatcher_register(dispatcher, DUMMY_TYPE_1, dummy_queue1);
+  EXPECT_TRUE(fixed_queue_is_empty(dummy_queue0));
+  EXPECT_TRUE(fixed_queue_is_empty(dummy_queue1));
+
+  // Send data to one of them
+  EXPECT_TRUE(data_dispatcher_dispatch(dispatcher, DUMMY_TYPE_0, dummy_data_0));
+
+  // Did we get it?
+  EXPECT_FALSE(fixed_queue_is_empty(dummy_queue0));
+  EXPECT_TRUE(fixed_queue_is_empty(dummy_queue1));
+  EXPECT_STREQ(dummy_data_0, (char *)fixed_queue_try_dequeue(dummy_queue0));
+  EXPECT_TRUE(fixed_queue_is_empty(dummy_queue0));
+
+  fixed_queue_free(dummy_queue0, NULL);
+  fixed_queue_free(dummy_queue1, NULL);
+  data_dispatcher_free(dispatcher);
+}
+
+TEST_F(DataDispatcherTest, test_dispatch_single_to_default) {
+  data_dispatcher_t *dispatcher = data_dispatcher_new("test_dispatcher");
+
+  // Register two queues, a default and a typed one
+  fixed_queue_t *dummy_queue = fixed_queue_new(DUMMY_QUEUE_SIZE);
+  fixed_queue_t *default_queue = fixed_queue_new(DUMMY_QUEUE_SIZE);
+  data_dispatcher_register(dispatcher, DUMMY_TYPE_0, dummy_queue);
+  data_dispatcher_register_default(dispatcher, default_queue);
+  EXPECT_TRUE(fixed_queue_is_empty(dummy_queue));
+  EXPECT_TRUE(fixed_queue_is_empty(default_queue));
+
+  // Send data to nowhere
+  EXPECT_TRUE(data_dispatcher_dispatch(dispatcher, DUMMY_TYPE_1, dummy_data_1));
+
+  // Did we get it?
+  EXPECT_TRUE(fixed_queue_is_empty(dummy_queue));
+  EXPECT_FALSE(fixed_queue_is_empty(default_queue));
+  EXPECT_STREQ(dummy_data_1, (char *)fixed_queue_try_dequeue(default_queue));
+  EXPECT_TRUE(fixed_queue_is_empty(default_queue));
+
+  fixed_queue_free(dummy_queue, NULL);
+  fixed_queue_free(default_queue, NULL);
+  data_dispatcher_free(dispatcher);
+}
+
+TEST_F(DataDispatcherTest, test_dispatch_multiple_to_single) {
+  data_dispatcher_t *dispatcher = data_dispatcher_new("test_dispatcher");
+
+  // Register a queue
+  fixed_queue_t *dummy_queue = fixed_queue_new(DUMMY_QUEUE_SIZE);
+  data_dispatcher_register(dispatcher, DUMMY_TYPE_0, dummy_queue);
+  EXPECT_TRUE(fixed_queue_is_empty(dummy_queue));
+
+  // Send data to the queue
+  EXPECT_TRUE(data_dispatcher_dispatch(dispatcher, DUMMY_TYPE_0, dummy_data_0));
+  EXPECT_TRUE(data_dispatcher_dispatch(dispatcher, DUMMY_TYPE_0, dummy_data_1));
+
+  // Did we get it?
+  EXPECT_FALSE(fixed_queue_is_empty(dummy_queue));
+  EXPECT_STREQ(dummy_data_0, (char *)fixed_queue_try_dequeue(dummy_queue));
+  EXPECT_FALSE(fixed_queue_is_empty(dummy_queue));
+  EXPECT_STREQ(dummy_data_1, (char *)fixed_queue_try_dequeue(dummy_queue));
+  EXPECT_TRUE(fixed_queue_is_empty(dummy_queue));
+
+  fixed_queue_free(dummy_queue, NULL);
+  data_dispatcher_free(dispatcher);
+}
+
+TEST_F(DataDispatcherTest, test_dispatch_multiple_to_multiple) {
+  data_dispatcher_t *dispatcher = data_dispatcher_new("test_dispatcher");
+
+  // Register two queues
+  fixed_queue_t *dummy_queue0 = fixed_queue_new(DUMMY_QUEUE_SIZE);
+  fixed_queue_t *dummy_queue1 = fixed_queue_new(DUMMY_QUEUE_SIZE);
+  data_dispatcher_register(dispatcher, DUMMY_TYPE_0, dummy_queue0);
+  data_dispatcher_register(dispatcher, DUMMY_TYPE_1, dummy_queue1);
+  EXPECT_TRUE(fixed_queue_is_empty(dummy_queue0));
+  EXPECT_TRUE(fixed_queue_is_empty(dummy_queue1));
+
+  // Send data to both of them
+  EXPECT_TRUE(data_dispatcher_dispatch(dispatcher, DUMMY_TYPE_0, dummy_data_0));
+  EXPECT_TRUE(data_dispatcher_dispatch(dispatcher, DUMMY_TYPE_1, dummy_data_1));
+
+  // Did we get it?
+  EXPECT_FALSE(fixed_queue_is_empty(dummy_queue0));
+  EXPECT_FALSE(fixed_queue_is_empty(dummy_queue1));
+  EXPECT_STREQ(dummy_data_0, (char *)fixed_queue_try_dequeue(dummy_queue0));
+  EXPECT_STREQ(dummy_data_1, (char *)fixed_queue_try_dequeue(dummy_queue1));
+  EXPECT_TRUE(fixed_queue_is_empty(dummy_queue0));
+  EXPECT_TRUE(fixed_queue_is_empty(dummy_queue1));
+
+  fixed_queue_free(dummy_queue0, NULL);
+  fixed_queue_free(dummy_queue1, NULL);
+  data_dispatcher_free(dispatcher);
+}
+
+TEST_F(DataDispatcherTest, test_dispatch_single_to_single_reregistered) {
+  data_dispatcher_t *dispatcher = data_dispatcher_new("test_dispatcher");
+
+  // Register a queue, then reregister
+  fixed_queue_t *dummy_queue = fixed_queue_new(DUMMY_QUEUE_SIZE);
+  fixed_queue_t *dummy_queue_reregistered = fixed_queue_new(DUMMY_QUEUE_SIZE);
+  data_dispatcher_register(dispatcher, DUMMY_TYPE_0, dummy_queue);
+  data_dispatcher_register(dispatcher, DUMMY_TYPE_0, dummy_queue_reregistered);
+  EXPECT_TRUE(fixed_queue_is_empty(dummy_queue));
+  EXPECT_TRUE(fixed_queue_is_empty(dummy_queue_reregistered));
+
+  // Send data to the queue
+  EXPECT_TRUE(data_dispatcher_dispatch(dispatcher, DUMMY_TYPE_0, dummy_data_0));
+
+  // Did we get it?
+  EXPECT_TRUE(fixed_queue_is_empty(dummy_queue));
+  EXPECT_FALSE(fixed_queue_is_empty(dummy_queue_reregistered));
+  EXPECT_STREQ(dummy_data_0, (char *)fixed_queue_try_dequeue(dummy_queue_reregistered));
+  EXPECT_TRUE(fixed_queue_is_empty(dummy_queue_reregistered));
+
+  fixed_queue_free(dummy_queue, NULL);
+  fixed_queue_free(dummy_queue_reregistered, NULL);
+  data_dispatcher_free(dispatcher);
+}
+
+TEST_F(DataDispatcherTest, test_dispatch_single_to_reregistered_null) {
+  data_dispatcher_t *dispatcher = data_dispatcher_new("test_dispatcher");
+
+  // Register a queue
+  fixed_queue_t *dummy_queue = fixed_queue_new(DUMMY_QUEUE_SIZE);
+  data_dispatcher_register(dispatcher, DUMMY_TYPE_0, dummy_queue);
+  data_dispatcher_register(dispatcher, DUMMY_TYPE_0, NULL);
+  EXPECT_TRUE(fixed_queue_is_empty(dummy_queue));
+
+  EXPECT_FALSE(data_dispatcher_dispatch(dispatcher, DUMMY_TYPE_0, dummy_data_0));
+  EXPECT_TRUE(fixed_queue_is_empty(dummy_queue));
+
+  fixed_queue_free(dummy_queue, NULL);
+  data_dispatcher_free(dispatcher);
+}
+
+TEST_F(DataDispatcherTest, test_dispatch_single_to_default_reregistered_null) {
+  data_dispatcher_t *dispatcher = data_dispatcher_new("test_dispatcher");
+
+  // Register a queue
+  fixed_queue_t *dummy_queue = fixed_queue_new(DUMMY_QUEUE_SIZE);
+  data_dispatcher_register_default(dispatcher, dummy_queue);
+  data_dispatcher_register_default(dispatcher, NULL);
+  EXPECT_TRUE(fixed_queue_is_empty(dummy_queue));
+
+  EXPECT_FALSE(data_dispatcher_dispatch(dispatcher, DUMMY_TYPE_0, dummy_data_0));
+  EXPECT_TRUE(fixed_queue_is_empty(dummy_queue));
+
+  fixed_queue_free(dummy_queue, NULL);
+  data_dispatcher_free(dispatcher);
+}
+
+TEST_F(DataDispatcherTest, test_dispatch_edge_zero) {
+  data_dispatcher_t *dispatcher = data_dispatcher_new("test_dispatcher");
+
+  // Register a queue
+  fixed_queue_t *dummy_queue = fixed_queue_new(DUMMY_QUEUE_SIZE);
+  data_dispatcher_register(dispatcher, TYPE_EDGE_CASE_ZERO, dummy_queue);
+  EXPECT_TRUE(fixed_queue_is_empty(dummy_queue));
+
+  // Send data to the queue
+  EXPECT_TRUE(data_dispatcher_dispatch(dispatcher, TYPE_EDGE_CASE_ZERO, dummy_data_0));
+
+  // Did we get it?
+  EXPECT_FALSE(fixed_queue_is_empty(dummy_queue));
+  EXPECT_STREQ(dummy_data_0, (char *)fixed_queue_try_dequeue(dummy_queue));
+  EXPECT_TRUE(fixed_queue_is_empty(dummy_queue));
+
+  fixed_queue_free(dummy_queue, NULL);
+  data_dispatcher_free(dispatcher);
+}
+
+TEST_F(DataDispatcherTest, test_dispatch_edge_max) {
+  data_dispatcher_t *dispatcher = data_dispatcher_new("test_dispatcher");
+
+  // Register a queue
+  fixed_queue_t *dummy_queue = fixed_queue_new(DUMMY_QUEUE_SIZE);
+  data_dispatcher_register(dispatcher, TYPE_EDGE_CASE_MAX, dummy_queue);
+  EXPECT_TRUE(fixed_queue_is_empty(dummy_queue));
+
+  // Send data to the queue
+  EXPECT_TRUE(data_dispatcher_dispatch(dispatcher, TYPE_EDGE_CASE_MAX, dummy_data_0));
+
+  // Did we get it?
+  EXPECT_FALSE(fixed_queue_is_empty(dummy_queue));
+  EXPECT_STREQ(dummy_data_0, (char *)fixed_queue_try_dequeue(dummy_queue));
+  EXPECT_TRUE(fixed_queue_is_empty(dummy_queue));
+
+  fixed_queue_free(dummy_queue, NULL);
+  data_dispatcher_free(dispatcher);
+}
diff --git a/rtkbt/code/bt/osi/test/eager_reader_test.cpp b/rtkbt/code/bt/osi/test/eager_reader_test.cpp
new file mode 100755
index 0000000..7156d56
--- /dev/null
+++ b/rtkbt/code/bt/osi/test/eager_reader_test.cpp
@@ -0,0 +1,147 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#include <gtest/gtest.h>
+
+#include "AllocationTestHarness.h"
+
+extern "C" {
+#include <stdint.h>
+#include <unistd.h>
+
+#include "osi/include/allocator.h"
+#include "osi/include/eager_reader.h"
+#include "osi/include/osi.h"
+#include "osi/include/semaphore.h"
+#include "osi/include/thread.h"
+}
+
+#define BUFFER_SIZE 32
+
+static const char *small_data = "white chocolate lindor truffles";
+static const char *large_data =
+  "Let him make him examine and thoroughly sift everything he reads, and "
+  "lodge nothing in his fancy upon simple authority and upon trust. "
+  "Aristotle's principles will then be no more principles to him, than those "
+  "of Epicurus and the Stoics: let this diversity of opinions be propounded "
+  "to, and laid before him; he will himself choose, if he be able; if not, "
+  "he will remain in doubt. "
+  ""
+  "   \"Che non men the saver, dubbiar m' aggrata.\" "
+  "   [\"I love to doubt, as well as to know.\"--Dante, Inferno, xi. 93] "
+  ""
+  "for, if he embrace the opinions of Xenophon and Plato, by his own reason, "
+  "they will no more be theirs, but become his own.  Who follows another, "
+  "follows nothing, finds nothing, nay, is inquisitive after nothing. "
+  ""
+  "   \"Non sumus sub rege; sibi quisque se vindicet.\" "
+  "   [\"We are under no king; let each vindicate himself.\" --Seneca, Ep.,33] "
+  ""
+  "let him, at least, know that he knows.  it will be necessary that he "
+  "imbibe their knowledge, not that he be corrupted with their precepts; "
+  "and no matter if he forget where he had his learning, provided he know "
+  "how to apply it to his own use.  truth and reason are common to every "
+  "one, and are no more his who spake them first, than his who speaks them "
+  "after: 'tis no more according to plato, than according to me, since both "
+  "he and i equally see and understand them.  bees cull their several sweets "
+  "from this flower and that blossom, here and there where they find them, "
+  "but themselves afterwards make the honey, which is all and purely their "
+  "own, and no more thyme and marjoram: so the several fragments he borrows "
+  "from others, he will transform and shuffle together to compile a work "
+  "that shall be absolutely his own; that is to say, his judgment: "
+  "his instruction, labour and study, tend to nothing else but to form that. ";
+
+static semaphore_t *done;
+
+class EagerReaderTest : public AllocationTestHarness {
+  protected:
+    virtual void SetUp() {
+      AllocationTestHarness::SetUp();
+      pipe(pipefd);
+      done = semaphore_new(0);
+    }
+
+    virtual void TearDown() {
+      semaphore_free(done);
+      AllocationTestHarness::TearDown();
+    }
+
+    int pipefd[2];
+};
+
+static void expect_data(eager_reader_t *reader, void *context) {
+  char *data = (char *)context;
+  int length = strlen(data);
+
+  for (int i = 0; i < length; i++) {
+    uint8_t byte;
+    EXPECT_EQ((size_t)1, eager_reader_read(reader, &byte, 1));
+    EXPECT_EQ(data[i], byte);
+  }
+
+  semaphore_post(done);
+}
+
+static void expect_data_multibyte(eager_reader_t *reader, void *context) {
+  char *data = (char *)context;
+  size_t length = strlen(data);
+
+  for (size_t i = 0; i < length;) {
+    uint8_t buffer[28];
+    size_t bytes_to_read = (length - i) > 28 ? 28 : (length - i);
+    size_t bytes_read = eager_reader_read(reader, buffer, bytes_to_read);
+    EXPECT_LE(bytes_read, bytes_to_read);
+    for (size_t j = 0; j < bytes_read && i < length; j++, i++) {
+      EXPECT_EQ(data[i], buffer[j]);
+    }
+  }
+
+  semaphore_post(done);
+}
+
+TEST_F(EagerReaderTest, test_new_free_simple) {
+  eager_reader_t *reader = eager_reader_new(pipefd[0], &allocator_malloc, BUFFER_SIZE, SIZE_MAX, "test_thread");
+  ASSERT_TRUE(reader != NULL);
+  eager_reader_free(reader);
+}
+
+TEST_F(EagerReaderTest, test_small_data) {
+  eager_reader_t *reader = eager_reader_new(pipefd[0], &allocator_malloc, BUFFER_SIZE, SIZE_MAX, "test_thread");
+
+  thread_t *read_thread = thread_new("read_thread");
+  eager_reader_register(reader, thread_get_reactor(read_thread), expect_data, (void *)small_data);
+
+  write(pipefd[1], small_data, strlen(small_data));
+
+  semaphore_wait(done);
+  eager_reader_free(reader);
+  thread_free(read_thread);
+}
+
+TEST_F(EagerReaderTest, test_large_data_multibyte) {
+  eager_reader_t *reader = eager_reader_new(pipefd[0], &allocator_malloc, BUFFER_SIZE, SIZE_MAX, "test_thread");
+
+  thread_t *read_thread = thread_new("read_thread");
+  eager_reader_register(reader, thread_get_reactor(read_thread), expect_data_multibyte, (void *)large_data);
+
+  write(pipefd[1], large_data, strlen(large_data));
+
+  semaphore_wait(done);
+  eager_reader_free(reader);
+  thread_free(read_thread);
+}
diff --git a/rtkbt/code/bt/osi/test/fixed_queue_test.cpp b/rtkbt/code/bt/osi/test/fixed_queue_test.cpp
new file mode 100755
index 0000000..da7cf5c
--- /dev/null
+++ b/rtkbt/code/bt/osi/test/fixed_queue_test.cpp
@@ -0,0 +1,307 @@
+#include <gtest/gtest.h>
+
+#include <climits>
+
+#include "AllocationTestHarness.h"
+
+extern "C" {
+#include "osi/include/allocator.h"
+#include "osi/include/fixed_queue.h"
+#include "osi/include/future.h"
+#include "osi/include/osi.h"
+#include "osi/include/thread.h"
+}
+
+static const size_t TEST_QUEUE_SIZE = 10;
+static const char *DUMMY_DATA_STRING = "Dummy data string";
+static const char *DUMMY_DATA_STRING1 = "Dummy data string1";
+static const char *DUMMY_DATA_STRING2 = "Dummy data string2";
+static const char *DUMMY_DATA_STRING3 = "Dummy data string3";
+static future_t *received_message_future = NULL;
+
+// Test whether a file descriptor |fd| is readable.
+// Return true if the file descriptor is readable, otherwise false.
+static bool is_fd_readable(int fd)
+{
+  fd_set rfds;
+  struct timeval tv;
+
+  FD_ZERO(&rfds);
+  tv.tv_sec = 0;
+  tv.tv_usec = 0;
+  FD_SET(fd, &rfds);
+  // Only the enqueue_fd should be readable
+  int result = select(FD_SETSIZE, &rfds, NULL, NULL, &tv);
+  EXPECT_TRUE(result >= 0);
+
+  return FD_ISSET(fd, &rfds);
+}
+
+// Function for performing dequeue operations from the queue when is ready
+static void
+fixed_queue_ready(fixed_queue_t *queue, UNUSED_ATTR void *context)
+{
+  void *msg = fixed_queue_try_dequeue(queue);
+  EXPECT_TRUE(msg != NULL);
+  future_ready(received_message_future, msg);
+}
+
+class FixedQueueTest : public AllocationTestHarness {};
+
+TEST_F(FixedQueueTest, test_fixed_queue_new_free) {
+  fixed_queue_t *queue;
+
+  // Test a corner case: queue of size 0
+  queue = fixed_queue_new(0);
+  EXPECT_TRUE(queue != NULL);
+  fixed_queue_free(queue, NULL);
+
+  // Test a corner case: queue of size 1
+  queue = fixed_queue_new(1);
+  EXPECT_TRUE(queue != NULL);
+  fixed_queue_free(queue, NULL);
+
+  // Test a corner case: queue of maximum size
+  queue = fixed_queue_new((size_t)-1);
+  EXPECT_TRUE(queue != NULL);
+  fixed_queue_free(queue, NULL);
+
+  // Test a queue of some size
+  queue = fixed_queue_new(TEST_QUEUE_SIZE);
+  EXPECT_TRUE(queue != NULL);
+  fixed_queue_free(queue, NULL);
+
+  // Test free-ing a NULL queue
+  fixed_queue_free(NULL, NULL);
+  fixed_queue_free(NULL, osi_free);
+}
+
+TEST_F(FixedQueueTest, test_fixed_queue_is_empty) {
+  fixed_queue_t *queue;
+
+  // Test a NULL queue
+  EXPECT_TRUE(fixed_queue_is_empty(NULL));
+
+  // Test an empty queue
+  queue = fixed_queue_new(TEST_QUEUE_SIZE);
+  ASSERT_TRUE(queue != NULL);
+  EXPECT_TRUE(fixed_queue_is_empty(queue));
+
+  // Test a non-empty queue
+  fixed_queue_try_enqueue(queue, (void *)DUMMY_DATA_STRING);
+  EXPECT_FALSE(fixed_queue_is_empty(queue));
+
+  // Test an empty dequeued queue
+  ASSERT_EQ(DUMMY_DATA_STRING, fixed_queue_try_dequeue(queue));
+  EXPECT_TRUE(fixed_queue_is_empty(queue));
+
+  fixed_queue_free(queue, NULL);
+}
+
+TEST_F(FixedQueueTest, test_fixed_queue_length) {
+  fixed_queue_t *queue;
+
+  // Test a NULL queue
+  EXPECT_EQ((size_t)0, fixed_queue_length(NULL));
+
+  // Test an empty queue
+  queue = fixed_queue_new(TEST_QUEUE_SIZE);
+  ASSERT_TRUE(queue != NULL);
+  EXPECT_EQ((size_t)0, fixed_queue_length(queue));
+
+  // Test a non-empty queue
+  fixed_queue_try_enqueue(queue, (void *)DUMMY_DATA_STRING);
+  EXPECT_EQ((size_t)1, fixed_queue_length(queue));
+
+  // Test an empty dequeued queue
+  ASSERT_EQ(DUMMY_DATA_STRING, fixed_queue_try_dequeue(queue));
+  EXPECT_EQ((size_t)0, fixed_queue_length(queue));
+
+  fixed_queue_free(queue, NULL);
+}
+
+TEST_F(FixedQueueTest, test_fixed_queue_capacity) {
+  fixed_queue_t *queue;
+
+  // Test a corner case: queue of size 0
+  queue = fixed_queue_new(0);
+  ASSERT_TRUE(queue != NULL);
+  EXPECT_EQ((size_t)0, fixed_queue_capacity(queue));
+  fixed_queue_free(queue, NULL);
+
+  // Test a corner case: queue of size 1
+  queue = fixed_queue_new(1);
+  ASSERT_TRUE(queue != NULL);
+  EXPECT_EQ((size_t)1, fixed_queue_capacity(queue));
+  fixed_queue_free(queue, NULL);
+
+  // Test a corner case: queue of maximum size
+  queue = fixed_queue_new((size_t)-1);
+  ASSERT_TRUE(queue != NULL);
+  EXPECT_EQ((size_t)-1, fixed_queue_capacity(queue));
+  fixed_queue_free(queue, NULL);
+
+  // Test a queue of some size
+  queue = fixed_queue_new(TEST_QUEUE_SIZE);
+  ASSERT_TRUE(queue != NULL);
+  EXPECT_EQ(TEST_QUEUE_SIZE, fixed_queue_capacity(queue));
+  fixed_queue_free(queue, NULL);
+}
+
+TEST_F(FixedQueueTest, test_fixed_queue_enqueue_dequeue) {
+  fixed_queue_t *queue = fixed_queue_new(TEST_QUEUE_SIZE);
+  ASSERT_TRUE(queue != NULL);
+
+  // Test blocking enqueue and blocking dequeue
+  fixed_queue_enqueue(queue, (void *)DUMMY_DATA_STRING);
+  EXPECT_EQ((size_t)1, fixed_queue_length(queue));
+  EXPECT_EQ(DUMMY_DATA_STRING, fixed_queue_dequeue(queue));
+  EXPECT_EQ((size_t)0, fixed_queue_length(queue));
+
+  // Test non-blocking enqueue and non-blocking dequeue
+  EXPECT_TRUE(fixed_queue_try_enqueue(queue, (void *)DUMMY_DATA_STRING));
+  EXPECT_EQ((size_t)1, fixed_queue_length(queue));
+  EXPECT_EQ(DUMMY_DATA_STRING, fixed_queue_try_dequeue(queue));
+  EXPECT_EQ((size_t)0, fixed_queue_length(queue));
+
+  // Test non-blocking enqueue beyond queue capacity
+  for (size_t i = 0; i < TEST_QUEUE_SIZE; i++) {
+    EXPECT_TRUE(fixed_queue_try_enqueue(queue, (void *)DUMMY_DATA_STRING));
+  }
+  // The next enqueue operation is beyond the queue capacity, so it should fail
+  EXPECT_FALSE(fixed_queue_try_enqueue(queue, (void *)DUMMY_DATA_STRING));
+
+  // Test non-blocking dequeue from a queue that is full to max capacity
+  for (size_t i = 0; i < TEST_QUEUE_SIZE; i++) {
+    EXPECT_EQ(DUMMY_DATA_STRING, fixed_queue_try_dequeue(queue));
+  }
+
+  // Test non-blocking dequeue from an empty queue
+  EXPECT_EQ(NULL, fixed_queue_try_dequeue(queue));
+
+  // Test non-blocking dequeue from a NULL queue
+  EXPECT_EQ(NULL, fixed_queue_try_dequeue(NULL));
+
+  fixed_queue_free(queue, NULL);
+}
+
+TEST_F(FixedQueueTest, test_fixed_queue_try_peek_first_last) {
+  fixed_queue_t *queue = fixed_queue_new(TEST_QUEUE_SIZE);
+  ASSERT_TRUE(queue != NULL);
+
+  // Test peek first/last from a NULL queue
+  EXPECT_EQ(NULL, fixed_queue_try_peek_first(NULL));
+  EXPECT_EQ(NULL, fixed_queue_try_peek_last(NULL));
+
+  // Test peek first/last from an empty queue
+  EXPECT_EQ(NULL, fixed_queue_try_peek_first(queue));
+  EXPECT_EQ(NULL, fixed_queue_try_peek_last(queue));
+
+  // Test peek first/last from a queue with one element
+  fixed_queue_enqueue(queue, (void *)DUMMY_DATA_STRING1);
+  EXPECT_EQ(DUMMY_DATA_STRING1, fixed_queue_try_peek_first(queue));
+  EXPECT_EQ(DUMMY_DATA_STRING1, fixed_queue_try_peek_last(queue));
+
+  // Test peek first/last from a queue with two elements
+  fixed_queue_enqueue(queue, (void *)DUMMY_DATA_STRING2);
+  EXPECT_EQ(DUMMY_DATA_STRING1, fixed_queue_try_peek_first(queue));
+  EXPECT_EQ(DUMMY_DATA_STRING2, fixed_queue_try_peek_last(queue));
+
+  // Test peek first/last from a queue with three elements
+  fixed_queue_enqueue(queue, (void *)DUMMY_DATA_STRING3);
+  EXPECT_EQ(DUMMY_DATA_STRING1, fixed_queue_try_peek_first(queue));
+  EXPECT_EQ(DUMMY_DATA_STRING3, fixed_queue_try_peek_last(queue));
+
+  fixed_queue_free(queue, NULL);
+}
+
+TEST_F(FixedQueueTest, test_fixed_queue_try_remove_from_queue) {
+  fixed_queue_t *queue = fixed_queue_new(TEST_QUEUE_SIZE);
+  ASSERT_TRUE(queue != NULL);
+
+  // Test removing from a NULL queue
+  EXPECT_EQ(NULL, fixed_queue_try_remove_from_queue(NULL,
+                                        (void *)DUMMY_DATA_STRING));
+
+  // Test removing from an empty queue
+  EXPECT_EQ(NULL, fixed_queue_try_remove_from_queue(queue,
+                                        (void *)DUMMY_DATA_STRING));
+
+  // Test removing a queued string from a queue
+  fixed_queue_enqueue(queue, (void *)DUMMY_DATA_STRING1);
+  fixed_queue_enqueue(queue, (void *)DUMMY_DATA_STRING2);
+  fixed_queue_enqueue(queue, (void *)DUMMY_DATA_STRING3);
+  EXPECT_EQ((size_t)3, fixed_queue_length(queue));
+  EXPECT_EQ(DUMMY_DATA_STRING2, fixed_queue_try_remove_from_queue(queue,
+                                        (void *)DUMMY_DATA_STRING2));
+  EXPECT_EQ((size_t)2, fixed_queue_length(queue));
+  // Removing again should fail
+  EXPECT_EQ(NULL, fixed_queue_try_remove_from_queue(queue,
+                                        (void *)DUMMY_DATA_STRING2));
+
+  // Test removing a non-queued string from a queue
+  EXPECT_EQ(NULL, fixed_queue_try_remove_from_queue(queue,
+                                        (void *)DUMMY_DATA_STRING));
+
+  fixed_queue_free(queue, NULL);
+}
+
+TEST_F(FixedQueueTest, test_fixed_queue_get_enqueue_dequeue_fd) {
+  fixed_queue_t *queue = fixed_queue_new(TEST_QUEUE_SIZE);
+  ASSERT_TRUE(queue != NULL);
+
+  // Test validity of enqueue and dequeue file descriptors
+  int enqueue_fd = fixed_queue_get_enqueue_fd(queue);
+  int dequeue_fd = fixed_queue_get_dequeue_fd(queue);
+  EXPECT_TRUE(enqueue_fd >= 0);
+  EXPECT_TRUE(dequeue_fd >= 0);
+  EXPECT_TRUE(enqueue_fd < FD_SETSIZE);
+  EXPECT_TRUE(dequeue_fd < FD_SETSIZE);
+
+  // Test the file descriptors of an empty queue
+  // Only the enqueue_fd should be readable
+  EXPECT_TRUE(is_fd_readable(enqueue_fd));
+  EXPECT_FALSE(is_fd_readable(dequeue_fd));
+
+  // Test the file descriptors of a non-empty queue
+  // Both the enqueue_fd and dequeue_fd should be readable
+  fixed_queue_enqueue(queue, (void *)DUMMY_DATA_STRING);
+  EXPECT_TRUE(is_fd_readable(enqueue_fd));
+  EXPECT_TRUE(is_fd_readable(dequeue_fd));
+  fixed_queue_dequeue(queue);
+
+  // Test the file descriptors of a full queue
+  // Only the dequeue_fd should be readable
+  for (size_t i = 0; i < TEST_QUEUE_SIZE; i++) {
+    EXPECT_TRUE(fixed_queue_try_enqueue(queue, (void *)DUMMY_DATA_STRING));
+  }
+  EXPECT_FALSE(is_fd_readable(enqueue_fd));
+  EXPECT_TRUE(is_fd_readable(dequeue_fd));
+
+  fixed_queue_free(queue, NULL);
+}
+
+TEST_F(FixedQueueTest, test_fixed_queue_register_dequeue) {
+  fixed_queue_t *queue = fixed_queue_new(TEST_QUEUE_SIZE);
+  ASSERT_TRUE(queue != NULL);
+
+  received_message_future = future_new();
+  ASSERT_TRUE(received_message_future != NULL);
+
+  thread_t *worker_thread = thread_new("test_fixed_queue_worker_thread");
+  ASSERT_TRUE(worker_thread != NULL);
+
+  fixed_queue_register_dequeue(queue,
+                               thread_get_reactor(worker_thread),
+                               fixed_queue_ready,
+                               NULL);
+
+  // Add a message to the queue, and expect to receive it
+  fixed_queue_enqueue(queue, (void *)DUMMY_DATA_STRING);
+  const char *msg = (const char *)future_await(received_message_future);
+  EXPECT_EQ(DUMMY_DATA_STRING, msg);
+
+  fixed_queue_unregister_dequeue(queue);
+  thread_free(worker_thread);
+  fixed_queue_free(queue, NULL);
+}
diff --git a/rtkbt/code/bt/osi/test/future_test.cpp b/rtkbt/code/bt/osi/test/future_test.cpp
new file mode 100755
index 0000000..a7a11af
--- /dev/null
+++ b/rtkbt/code/bt/osi/test/future_test.cpp
@@ -0,0 +1,54 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#include <gtest/gtest.h>
+
+#include "AllocationTestHarness.h"
+
+extern "C" {
+#include "osi/include/future.h"
+#include "osi/include/osi.h"
+#include "osi/include/thread.h"
+}
+
+static const char *pass_back_data0 = "fancy a sandwich? it's a fancy sandwich";
+static const char *pass_back_data1 = "what kind of ice cream truck plays the worst christmas song of all time?";
+
+class FutureTest : public AllocationTestHarness {};
+
+static void post_to_future(void *context) {
+  future_ready((future_t *)context, (void *)pass_back_data0);
+}
+
+TEST_F(FutureTest, test_future_non_immediate) {
+  future_t *future = future_new();
+  ASSERT_TRUE(future != NULL);
+
+  thread_t *worker_thread = thread_new("worker thread");
+  thread_post(worker_thread, post_to_future, future);
+
+  EXPECT_EQ(pass_back_data0, future_await(future));
+
+  thread_free(worker_thread);
+}
+
+TEST_F(FutureTest, test_future_immediate) {
+  future_t *future = future_new_immediate((void *)pass_back_data1);
+  ASSERT_TRUE(future != NULL);
+  EXPECT_EQ(pass_back_data1, future_await(future));
+}
diff --git a/rtkbt/code/bt/osi/test/hash_map_test.cpp b/rtkbt/code/bt/osi/test/hash_map_test.cpp
new file mode 100755
index 0000000..92dae16
--- /dev/null
+++ b/rtkbt/code/bt/osi/test/hash_map_test.cpp
@@ -0,0 +1,202 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#include <gtest/gtest.h>
+
+#include "AllocationTestHarness.h"
+
+extern "C" {
+#include "osi/include/hash_map.h"
+#include "osi/include/osi.h"
+}
+
+class HashMapTest : public AllocationTestHarness {};
+
+hash_index_t hash_map_fn00(const void *key) {
+  hash_index_t hash_key = (hash_index_t)key;
+  return hash_key;
+}
+
+static size_t g_key_free;
+void key_free_fn00(UNUSED_ATTR void *data) {
+  g_key_free++;
+}
+
+static size_t g_data_free;
+void data_free_fn00(UNUSED_ATTR void *data) {
+  g_data_free++;
+}
+
+TEST_F(HashMapTest, test_new_free_simple) {
+  hash_map_t *hash_map = hash_map_new(5, hash_map_fn00, NULL, NULL, NULL);
+  ASSERT_TRUE(hash_map != NULL);
+  hash_map_free(hash_map);
+}
+
+TEST_F(HashMapTest, test_insert_simple) {
+  hash_map_t *hash_map = hash_map_new(5, hash_map_fn00, NULL, NULL, NULL);
+  ASSERT_TRUE(hash_map != NULL);
+
+  struct {
+    const char *key;
+    const char *data;
+  } data[] = {
+    { "0", "zero" },
+    { "1", "one" },
+    { "2", "two" },
+    { "3", "three" },
+  };
+
+  size_t data_sz = sizeof(data)/sizeof(data[0]);
+
+  for (size_t i = 0; i < data_sz; i++) {
+    EXPECT_EQ(i, hash_map_size(hash_map));
+    hash_map_set(hash_map, data[i].key, (void*)data[i].data);
+    EXPECT_EQ(i + 1, hash_map_size(hash_map));
+  }
+
+  EXPECT_EQ(data_sz, hash_map_size(hash_map));
+
+  for (size_t i = 0; i < data_sz; i++) {
+    char *val = (char *)hash_map_get(hash_map, data[i].key);
+    EXPECT_STREQ(data[i].data, val);
+  }
+  EXPECT_EQ(data_sz, hash_map_size(hash_map));
+
+  hash_map_free(hash_map);
+}
+
+TEST_F(HashMapTest, test_insert_same) {
+  hash_map_t *hash_map = hash_map_new(5, hash_map_fn00, NULL, NULL, NULL);
+  ASSERT_TRUE(hash_map != NULL);
+
+  struct {
+    const char *key;
+    const char *data;
+  } data[] = {
+    { "0", "zero" },
+    { "0", "one" },
+    { "0", "two" },
+    { "0", "three" },
+  };
+
+  size_t data_sz = sizeof(data)/sizeof(data[0]);
+
+  for (size_t i = 0; i < data_sz; i++) {
+    hash_map_set(hash_map, data[i].key, (void*)data[i].data);
+    EXPECT_EQ(1U, hash_map_size(hash_map));
+  }
+
+  EXPECT_EQ(1U, hash_map_size(hash_map));
+
+  for (size_t i = 0; i < data_sz; i++) {
+    char *val = (char *)hash_map_get(hash_map, data[i].key);
+    EXPECT_STREQ(data[data_sz - 1].data, val);
+  }
+
+  hash_map_free(hash_map);
+}
+
+TEST_F(HashMapTest, test_functions) {
+  hash_map_t *hash_map = hash_map_new(5, hash_map_fn00, key_free_fn00, data_free_fn00, NULL);
+  ASSERT_TRUE(hash_map != NULL);
+
+  struct {
+    const char *key;
+    const char *data;
+  } data[] = {
+    { "0", "zero" },
+    { "1", "one" },
+    { "2", "two" },
+    { "3", "three" },
+  };
+
+  g_data_free = 0;
+  g_key_free = 0;
+
+  size_t data_sz = sizeof(data)/sizeof(data[0]);
+
+  for (size_t i = 0; i < data_sz; i++) {
+    EXPECT_EQ(hash_map_size(hash_map), i);
+    hash_map_set(hash_map, data[i].key, (void*)data[i].data);
+  }
+
+  EXPECT_EQ(data_sz, hash_map_size(hash_map));
+  EXPECT_EQ((size_t)0, g_data_free);
+  EXPECT_EQ((size_t)0, g_key_free);
+
+  for (size_t i = 0; i < data_sz; i++) {
+    char *val = (char *)hash_map_get(hash_map, data[i].key);
+    EXPECT_TRUE(val != NULL);
+    EXPECT_STREQ(data[i].data, val);
+    hash_map_erase(hash_map, (void*)data[i].key);
+    EXPECT_EQ(i + 1, g_data_free);
+    EXPECT_EQ(i + 1, g_key_free);
+  }
+
+  hash_map_free(hash_map);
+}
+
+struct hash_test_iter_data_s {
+  const char *key;
+  const char *data;
+} hash_test_iter_data[] = {
+  { "0", "zero" },
+  { "1", "one" },
+  { "2", "two" },
+  { "3", "three" },
+  { "elephant", "big" },
+  { "fox", "medium" },
+  { "gerbil", "small" },
+};
+
+bool hash_test_iter_ro_cb(hash_map_entry_t *hash_map_entry, void *context) {
+  const char *key = (const char *)hash_map_entry->key;
+  char *data = (char *)hash_map_entry->data;
+  EXPECT_TRUE(data != NULL);
+
+  size_t hash_test_iter_data_sz = sizeof(hash_test_iter_data)/sizeof(hash_test_iter_data[0]);
+  size_t i;
+  for (i = 0; i < hash_test_iter_data_sz; i++) {
+    if (!strcmp(hash_test_iter_data[i].key, key))
+      break;
+  }
+  EXPECT_NE(hash_test_iter_data_sz, i);
+  EXPECT_EQ(NULL, context);
+  EXPECT_STREQ(hash_test_iter_data[i].data, data);
+  return true;
+}
+
+TEST_F(HashMapTest, test_iter) {
+  hash_map_t *hash_map = hash_map_new(5, hash_map_fn00, key_free_fn00, data_free_fn00, NULL);
+  ASSERT_TRUE(hash_map != NULL);
+  g_data_free = 0;
+  g_key_free = 0;
+
+  size_t hash_test_iter_data_sz = sizeof(hash_test_iter_data)/sizeof(hash_test_iter_data[0]);
+
+  for (size_t i = 0; i < hash_test_iter_data_sz; i++) {
+    EXPECT_EQ(hash_map_size(hash_map), i);
+    hash_map_set(hash_map, hash_test_iter_data[i].key, (void*)hash_test_iter_data[i].data);
+  }
+
+  void *context = NULL;
+  hash_map_foreach(hash_map, hash_test_iter_ro_cb, context);
+
+  hash_map_free(hash_map);
+}
diff --git a/rtkbt/code/bt/osi/test/hash_map_utils_test.cpp b/rtkbt/code/bt/osi/test/hash_map_utils_test.cpp
new file mode 100755
index 0000000..fa3ff07
--- /dev/null
+++ b/rtkbt/code/bt/osi/test/hash_map_utils_test.cpp
@@ -0,0 +1,122 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2015 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+#include <cstring>
+
+#include <gtest/gtest.h>
+
+#include "AllocationTestHarness.h"
+
+extern "C" {
+#include "osi/include/hash_map.h"
+#include "osi/include/hash_map_utils.h"
+#include "osi/include/allocator.h"
+}
+
+class HashMapUtilsTest : public AllocationTestHarness {
+ protected:
+  virtual void SetUp() {
+    AllocationTestHarness::SetUp();
+    map = NULL;
+  }
+  virtual void TearDown() {
+    hash_map_free(map);
+    AllocationTestHarness::TearDown();
+  }
+
+  hash_map_t *map;
+};
+
+TEST_F(HashMapUtilsTest, test_empty_string_params) {
+  char params[] = "";
+  map = hash_map_utils_new_from_string_params(params);
+  EXPECT_TRUE(hash_map_is_empty(map));
+}
+
+TEST_F(HashMapUtilsTest, test_semicolons) {
+  char params[] = ";;;";
+  map = hash_map_utils_new_from_string_params(params);
+  EXPECT_TRUE(hash_map_is_empty(map));
+}
+
+TEST_F(HashMapUtilsTest, test_equal_sign_in_value) {
+  char params[] = "keyOfSomething=value=OfSomething";
+  char key[] = "keyOfSomething";
+  char value[] = "value=OfSomething";
+  map = hash_map_utils_new_from_string_params(params);
+  EXPECT_EQ(1u, hash_map_size(map));
+  EXPECT_EQ(0, strcmp(value, (char *)hash_map_get(map, key)));
+}
+
+TEST_F(HashMapUtilsTest, test_two_pairs_with_same_key) {
+  char params[] = "key=valu0;key=value1";
+  char key[] = "key";
+  char value1[] = "value1";
+  map = hash_map_utils_new_from_string_params(params);
+  EXPECT_EQ(1u, hash_map_size(map));
+  EXPECT_EQ(0, strcmp(value1, (char *)hash_map_get(map, key)));
+}
+
+TEST_F(HashMapUtilsTest, test_one_key_value_pair_without_semicolon) {
+  char params[] = "keyOfSomething=valueOfSomething";
+  char key[] = "keyOfSomething";
+  char value[] = "valueOfSomething";
+  map = hash_map_utils_new_from_string_params(params);
+  EXPECT_EQ(1u, hash_map_size(map));
+  EXPECT_EQ(0, strcmp(value, (char *)hash_map_get(map, key)));
+}
+
+TEST_F(HashMapUtilsTest, test_one_key_value_pair_with_semicolon) {
+  char params[] = "keyOfSomething=valueOfSomething;";
+  char key[] = "keyOfSomething";
+  char value[] = "valueOfSomething";
+  map = hash_map_utils_new_from_string_params(params);
+  EXPECT_EQ(1u, hash_map_size(map));
+  EXPECT_EQ(0, strcmp(value, (char *)hash_map_get(map, key)));
+}
+
+TEST_F(HashMapUtilsTest, test_one_pair_with_empty_value) {
+  char params[] = "keyOfSomething=;";
+  char key[] = "keyOfSomething";
+  char value[] = "";
+  map = hash_map_utils_new_from_string_params(params);
+  EXPECT_EQ(1u, hash_map_size(map));
+  EXPECT_EQ(0, strcmp(value, (char *)hash_map_get(map, key)));
+}
+
+TEST_F(HashMapUtilsTest, test_one_pair_with_empty_key) {
+  char params[] = "=valueOfSomething;";
+  map = hash_map_utils_new_from_string_params(params);
+  EXPECT_TRUE(hash_map_is_empty(map));
+}
+
+TEST_F(HashMapUtilsTest, test_two_key_value_pairs) {
+  char params[] = "key0=value0;key1=value1;";
+  char key0[] = "key0";
+  char value0[] = "value0";
+  char key1[] = "key1";
+  char value1[] = "value1";
+  map = hash_map_utils_new_from_string_params(params);
+  EXPECT_EQ(2u, hash_map_size(map));
+  EXPECT_EQ(0, strcmp(value0, (char *)hash_map_get(map, key0)));
+  EXPECT_EQ(0, strcmp(value1, (char *)hash_map_get(map, key1)));
+}
+
+TEST_F(HashMapUtilsTest, test_dump_null_map) {
+  hash_map_t *map = NULL;
+  hash_map_utils_dump_string_keys_string_values(map);
+}
diff --git a/rtkbt/code/bt/osi/test/list_test.cpp b/rtkbt/code/bt/osi/test/list_test.cpp
new file mode 100755
index 0000000..b7d8ae8
--- /dev/null
+++ b/rtkbt/code/bt/osi/test/list_test.cpp
@@ -0,0 +1,216 @@
+#include <gtest/gtest.h>
+
+#include "AllocationTestHarness.h"
+
+extern "C" {
+#include "osi/include/list.h"
+#include "osi/include/osi.h"
+}
+
+class ListTest : public AllocationTestHarness {};
+
+TEST_F(ListTest, test_new_free_simple) {
+  list_t *list = list_new(NULL);
+  ASSERT_TRUE(list != NULL);
+  list_free(list);
+}
+
+TEST_F(ListTest, test_free_null) {
+  // In this test we just verify that list_free is callable with NULL.
+  list_free(NULL);
+}
+
+TEST_F(ListTest, test_empty_list_is_empty) {
+  list_t *list = list_new(NULL);
+  EXPECT_TRUE(list_is_empty(list));
+  list_free(list);
+}
+
+TEST_F(ListTest, test_empty_list_has_no_length) {
+  list_t *list = list_new(NULL);
+  EXPECT_EQ(list_length(list), 0U);
+  list_free(list);
+}
+
+TEST_F(ListTest, test_simple_list_prepend) {
+  list_t *list = list_new(NULL);
+  EXPECT_TRUE(list_prepend(list, &list));
+  EXPECT_FALSE(list_is_empty(list));
+  EXPECT_EQ(list_length(list), 1U);
+  list_free(list);
+}
+
+TEST_F(ListTest, test_simple_list_append) {
+  list_t *list = list_new(NULL);
+  EXPECT_TRUE(list_append(list, &list));
+  EXPECT_FALSE(list_is_empty(list));
+  EXPECT_EQ(list_length(list), 1U);
+  list_free(list);
+}
+
+TEST_F(ListTest, test_list_remove_found) {
+  list_t *list = list_new(NULL);
+  list_append(list, &list);
+  EXPECT_TRUE(list_remove(list, &list));
+  EXPECT_TRUE(list_is_empty(list));
+  EXPECT_EQ(list_length(list),  0U);
+  list_free(list);
+}
+
+TEST_F(ListTest, test_list_remove_not_found) {
+  int x;
+  list_t *list = list_new(NULL);
+  list_append(list, &list);
+  EXPECT_FALSE(list_remove(list, &x));
+  EXPECT_FALSE(list_is_empty(list));
+  EXPECT_EQ(list_length(list), 1U);
+  list_free(list);
+}
+
+TEST_F(ListTest, test_list_front) {
+  int x[] = { 1, 2, 3, 4, 5 };
+  list_t *list = list_new(NULL);
+
+  for (size_t i = 0; i < ARRAY_SIZE(x); ++i)
+    list_append(list, &x[i]);
+
+  EXPECT_EQ(list_front(list), &x[0]);
+
+  list_free(list);
+}
+
+TEST_F(ListTest, test_list_back) {
+  int x[] = { 1, 2, 3, 4, 5 };
+  list_t *list = list_new(NULL);
+
+  for (size_t i = 0; i < ARRAY_SIZE(x); ++i)
+    list_append(list, &x[i]);
+
+  EXPECT_EQ(list_back(list), &x[ARRAY_SIZE(x) - 1]);
+
+  list_free(list);
+}
+
+TEST_F(ListTest, test_list_clear) {
+  int x[] = { 1, 2, 3, 4, 5 };
+  list_t *list = list_new(NULL);
+
+  for (size_t i = 0; i < ARRAY_SIZE(x); ++i)
+    list_append(list, &x[i]);
+
+  list_clear(list);
+  EXPECT_TRUE(list_is_empty(list));
+  EXPECT_EQ(list_length(list), 0U);
+
+  list_free(list);
+}
+
+TEST_F(ListTest, test_list_append_multiple) {
+  int x[] = { 1, 2, 3, 4, 5 };
+  list_t *list = list_new(NULL);
+
+  for (size_t i = 0; i < ARRAY_SIZE(x); ++i)
+    list_append(list, &x[i]);
+
+  int i = 0;
+  for (const list_node_t *node = list_begin(list); node != list_end(list); node = list_next(node), ++i)
+    EXPECT_EQ(list_node(node), &x[i]);
+
+  list_free(list);
+}
+
+TEST_F(ListTest, test_list_prepend_multiple) {
+  int x[] = { 1, 2, 3, 4, 5 };
+  list_t *list = list_new(NULL);
+
+  for (size_t i = 0; i < ARRAY_SIZE(x); ++i)
+    list_prepend(list, &x[i]);
+
+  int i = ARRAY_SIZE(x) - 1;
+  for (const list_node_t *node = list_begin(list); node != list_end(list); node = list_next(node), --i)
+    EXPECT_EQ(list_node(node), &x[i]);
+
+  list_free(list);
+}
+
+TEST_F(ListTest, test_list_begin_empty_list) {
+  list_t *list = list_new(NULL);
+  EXPECT_EQ(list_begin(list), list_end(list));
+  list_free(list);
+}
+
+TEST_F(ListTest, test_list_next) {
+  list_t *list = list_new(NULL);
+  list_append(list, &list);
+  EXPECT_NE(list_begin(list), list_end(list));
+  EXPECT_EQ(list_next(list_begin(list)), list_end(list));
+  list_free(list);
+}
+
+static bool list_callback_sum(void *data, void *context) {
+  assert(data);
+  assert(context);
+  int *sum = (int *)context;
+  int *value = (int *)data;
+  *sum += *value;
+  return true;
+}
+
+static bool list_callback_find_int(void *data, void *context) {
+  assert(data);
+  assert(context);
+  return (*(int *)data != *(int *)context);
+}
+
+TEST_F(ListTest, test_list_foreach_full) {
+  list_t *list = list_new(NULL);
+
+  // Fill in test data
+  int x[] = { 1, 2, 3, 4, 5 };
+  for (size_t i = 0; i < ARRAY_SIZE(x); ++i)
+    list_append(list, &x[i]);
+  EXPECT_EQ(list_length(list), (size_t)5);
+
+  // Test complete iteration
+  int sum = 0;
+  list_node_t *rc = list_foreach(list, list_callback_sum, &sum);
+  EXPECT_EQ(sum, 15);
+  EXPECT_TRUE(rc == NULL);
+
+  list_free(list);
+}
+
+TEST_F(ListTest, test_list_foreach_partial) {
+  list_t *list = list_new(NULL);
+
+  // Fill in test data
+  int x[] = { 1, 2, 3, 4, 5 };
+  for (size_t i = 0; i < ARRAY_SIZE(x); ++i)
+    list_append(list, &x[i]);
+  EXPECT_EQ(list_length(list), (size_t)5);
+
+  // Test partial iteration
+  int find = 4;
+  list_node_t *rc = list_foreach(list, list_callback_find_int, &find);
+  EXPECT_TRUE(rc != NULL);
+  int *rc_val = (int *)list_node(rc);
+  EXPECT_TRUE(*rc_val == 4);
+
+  find = 1;
+  rc = list_foreach(list, list_callback_find_int, &find);
+  EXPECT_TRUE(rc != NULL);
+  rc_val = (int *)list_node(rc);
+  EXPECT_TRUE(*rc_val == 1);
+
+  find = 5;
+  rc = list_foreach(list, list_callback_find_int, &find);
+  EXPECT_TRUE(rc != NULL);
+  rc_val = (int *)list_node(rc);
+  EXPECT_TRUE(*rc_val == 5);
+
+  find = 0;
+  rc = list_foreach(list, list_callback_find_int, &find);
+  EXPECT_TRUE(rc == NULL);
+
+  list_free(list);
+}
diff --git a/rtkbt/code/bt/osi/test/properties_test.cpp b/rtkbt/code/bt/osi/test/properties_test.cpp
new file mode 100755
index 0000000..3d27526
--- /dev/null
+++ b/rtkbt/code/bt/osi/test/properties_test.cpp
@@ -0,0 +1,43 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2016 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#include <gtest/gtest.h>
+
+#include "AllocationTestHarness.h"
+
+extern "C" {
+#include "osi/include/properties.h"
+}
+
+class PropertiesTest : public AllocationTestHarness {};
+
+TEST_F(PropertiesTest, test_default_value) {
+  char value[PROPERTY_VALUE_MAX] = {0};
+  osi_property_get("very.useful.test", value, "very_useful_value");
+  ASSERT_STREQ(value, "very_useful_value");
+}
+
+TEST_F(PropertiesTest, test_successfull_set_and_get_value) {
+  char value[PROPERTY_VALUE_MAX] = "nothing_interesting";
+  int ret = osi_property_set("very.useful.set.test", value);
+  ASSERT_EQ(0, ret);
+
+  char received[PROPERTY_VALUE_MAX];
+  osi_property_get("very.useful.set.test", received, NULL);
+  ASSERT_STREQ(received, "nothing_interesting");
+}
diff --git a/rtkbt/code/bt/osi/test/rand_test.cpp b/rtkbt/code/bt/osi/test/rand_test.cpp
new file mode 100755
index 0000000..cf0d7f6
--- /dev/null
+++ b/rtkbt/code/bt/osi/test/rand_test.cpp
@@ -0,0 +1,19 @@
+#include <gtest/gtest.h>
+
+#include "AllocationTestHarness.h"
+
+extern "C" {
+#include "osi/include/osi.h"
+}
+
+class RandTest : public AllocationTestHarness {};
+
+TEST_F(RandTest, test_rand) {
+  // We can't guarantee any distribution
+  // We'd like it to not crash though.
+  for (int i = 0; i < 10; i++) {
+    int x;
+    x = osi_rand();
+    EXPECT_TRUE(x >= 0);
+  }
+}
diff --git a/rtkbt/code/bt/osi/test/reactor_test.cpp b/rtkbt/code/bt/osi/test/reactor_test.cpp
new file mode 100755
index 0000000..a2c7b6e
--- /dev/null
+++ b/rtkbt/code/bt/osi/test/reactor_test.cpp
@@ -0,0 +1,119 @@
+#include <gtest/gtest.h>
+#include <pthread.h>
+#include <sys/eventfd.h>
+#include <sys/time.h>
+#include <unistd.h>
+
+#include "AllocationTestHarness.h"
+
+extern "C" {
+#include "osi/include/reactor.h"
+}
+
+class ReactorTest : public AllocationTestHarness {};
+
+static pthread_t thread;
+static volatile bool thread_running;
+
+static void *reactor_thread(void *ptr) {
+  reactor_t *reactor = (reactor_t *)ptr;
+
+  thread_running = true;
+  reactor_start(reactor);
+  thread_running = false;
+
+  return NULL;
+}
+
+static void spawn_reactor_thread(reactor_t *reactor) {
+  int ret = pthread_create(&thread, NULL, reactor_thread, reactor);
+  EXPECT_EQ(ret, 0);
+}
+
+static void join_reactor_thread() {
+  pthread_join(thread, NULL);
+}
+
+TEST_F(ReactorTest, reactor_new) {
+  reactor_t *reactor = reactor_new();
+  EXPECT_TRUE(reactor != NULL);
+  reactor_free(reactor);
+}
+
+TEST_F(ReactorTest, reactor_free_null) {
+  reactor_free(NULL);
+}
+
+TEST_F(ReactorTest, reactor_stop_start) {
+  reactor_t *reactor = reactor_new();
+  reactor_stop(reactor);
+  reactor_start(reactor);
+  reactor_free(reactor);
+}
+
+TEST_F(ReactorTest, reactor_repeated_stop_start) {
+  reactor_t *reactor = reactor_new();
+  for (int i = 0; i < 10; ++i) {
+    reactor_stop(reactor);
+    reactor_start(reactor);
+  }
+  reactor_free(reactor);
+}
+
+TEST_F(ReactorTest, reactor_start_wait_stop) {
+  reactor_t *reactor = reactor_new();
+
+  spawn_reactor_thread(reactor);
+  usleep(50 * 1000);
+  EXPECT_TRUE(thread_running);
+
+  reactor_stop(reactor);
+  join_reactor_thread();
+  EXPECT_FALSE(thread_running);
+
+  reactor_free(reactor);
+}
+
+typedef struct {
+  reactor_t *reactor;
+  reactor_object_t *object;
+} unregister_arg_t;
+
+static void unregister_cb(void *context) {
+  unregister_arg_t *arg = (unregister_arg_t *)context;
+  reactor_unregister(arg->object);
+  reactor_stop(arg->reactor);
+}
+
+TEST_F(ReactorTest, reactor_unregister_from_callback) {
+  reactor_t *reactor = reactor_new();
+
+  int fd = eventfd(0, 0);
+  unregister_arg_t arg;
+  arg.reactor = reactor;
+  arg.object = reactor_register(reactor, fd, &arg, unregister_cb, NULL);
+  spawn_reactor_thread(reactor);
+  eventfd_write(fd, 1);
+
+  join_reactor_thread();
+
+  close(fd);
+  reactor_free(reactor);
+}
+
+TEST_F(ReactorTest, reactor_unregister_from_separate_thread) {
+  reactor_t *reactor = reactor_new();
+
+  int fd = eventfd(0, 0);
+
+  reactor_object_t *object = reactor_register(reactor, fd, NULL, NULL, NULL);
+  spawn_reactor_thread(reactor);
+  usleep(50 * 1000);
+  reactor_unregister(object);
+
+  reactor_stop(reactor);
+  join_reactor_thread();
+
+  close(fd);
+  reactor_free(reactor);
+}
diff --git a/rtkbt/code/bt/osi/test/ringbuffer_test.cpp b/rtkbt/code/bt/osi/test/ringbuffer_test.cpp
new file mode 100755
index 0000000..8dd5bdc
--- /dev/null
+++ b/rtkbt/code/bt/osi/test/ringbuffer_test.cpp
@@ -0,0 +1,139 @@
+#include <gtest/gtest.h>
+
+extern "C" {
+#include "osi/include/ringbuffer.h"
+#include "osi/include/osi.h"
+}
+
+TEST(RingbufferTest, test_new_simple) {
+  ringbuffer_t *rb = ringbuffer_init(4096);
+  ASSERT_TRUE(rb != NULL);
+  EXPECT_EQ((size_t)4096, ringbuffer_available(rb));
+  EXPECT_EQ((size_t)0, ringbuffer_size(rb));
+  ringbuffer_free(rb);
+}
+
+TEST(RingbufferTest, test_insert_basic) {
+  ringbuffer_t *rb = ringbuffer_init(16);
+
+  uint8_t buffer[10] = {0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A};
+  ringbuffer_insert(rb, buffer, 10);
+  EXPECT_EQ((size_t)10, ringbuffer_size(rb));
+  EXPECT_EQ((size_t)6, ringbuffer_available(rb));
+
+  uint8_t peek[10] = {0};
+  size_t peeked = ringbuffer_peek(rb, 0, peek, 10);
+  EXPECT_EQ((size_t)10, ringbuffer_size(rb)); // Ensure size doesn't change
+  EXPECT_EQ((size_t)6, ringbuffer_available(rb));
+  EXPECT_EQ((size_t)10, peeked);
+  ASSERT_TRUE(0 == memcmp(buffer, peek, peeked));
+
+  ringbuffer_free(rb);
+}
+
+TEST(RingbufferTest, test_insert_full) {
+  ringbuffer_t *rb = ringbuffer_init(5);
+
+  uint8_t aa[] = {0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA};
+  uint8_t bb[] = {0xBB, 0xBB, 0xBB, 0xBB, 0xBB};
+  uint8_t peek[5] = {0};
+
+  size_t added = ringbuffer_insert(rb, aa, 7);
+  EXPECT_EQ((size_t)5, added);
+  EXPECT_EQ((size_t)0, ringbuffer_available(rb));
+  EXPECT_EQ((size_t)5, ringbuffer_size(rb));
+
+  added = ringbuffer_insert(rb, bb, 5);
+  EXPECT_EQ((size_t)0, added);
+  EXPECT_EQ((size_t)0, ringbuffer_available(rb));
+  EXPECT_EQ((size_t)5, ringbuffer_size(rb));
+
+  size_t peeked = ringbuffer_peek(rb, 0, peek, 5);
+  EXPECT_EQ((size_t)5, peeked);
+  EXPECT_EQ((size_t)0, ringbuffer_available(rb));
+  EXPECT_EQ((size_t)5, ringbuffer_size(rb));
+
+  ASSERT_TRUE(0 == memcmp(aa, peek, peeked));
+
+  ringbuffer_free(rb);
+}
+
+TEST(RingbufferTest, test_multi_insert_delete) {
+  ringbuffer_t *rb = ringbuffer_init(16);
+  EXPECT_EQ((size_t)16, ringbuffer_available(rb));
+  EXPECT_EQ((size_t)0, ringbuffer_size(rb));
+
+  // Insert some bytes
+
+  uint8_t aa[] = {0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA};
+  size_t added = ringbuffer_insert(rb, aa, sizeof(aa));
+  EXPECT_EQ((size_t)8, added);
+  EXPECT_EQ((size_t)8, ringbuffer_available(rb));
+  EXPECT_EQ((size_t)8, ringbuffer_size(rb));
+
+  uint8_t bb[] = {0xBB, 0xBB, 0xBB, 0xBB, 0xBB};
+  ringbuffer_insert(rb, bb, sizeof(bb));
+  EXPECT_EQ((size_t)3, ringbuffer_available(rb));
+  EXPECT_EQ((size_t)13, ringbuffer_size(rb));
+
+  uint8_t content[] = {0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xBB, 0xBB, 0xBB, 0xBB, 0xBB};
+  uint8_t peek[16] = {0};
+  size_t peeked = ringbuffer_peek(rb, 0, peek, 16);
+  EXPECT_EQ((size_t)13, peeked);
+  ASSERT_TRUE(0 == memcmp(content, peek, peeked));
+
+  // Delete some bytes
+
+  ringbuffer_delete(rb, sizeof(aa));
+  EXPECT_EQ((size_t)11, ringbuffer_available(rb));
+  EXPECT_EQ((size_t)5, ringbuffer_size(rb));
+
+  // Add some more to wrap buffer
+
+  uint8_t cc[] = {0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC};
+  ringbuffer_insert(rb, cc, sizeof(cc));
+  EXPECT_EQ((size_t)2, ringbuffer_available(rb));
+  EXPECT_EQ((size_t)14, ringbuffer_size(rb));
+
+  uint8_t content2[] = {0xBB, 0xBB, 0xBB, 0xBB, 0xBB, 0xCC, 0xCC};
+  peeked = ringbuffer_peek(rb, 0, peek, 7);
+  EXPECT_EQ((size_t)7, peeked);
+  ASSERT_TRUE(0 == memcmp(content2, peek, peeked));
+
+  // Pop buffer
+
+  memset(peek, 0, 16);
+  size_t popped = ringbuffer_pop(rb, peek, 7);
+  EXPECT_EQ((size_t)7, popped);
+  EXPECT_EQ((size_t)9, ringbuffer_available(rb));
+  ASSERT_TRUE(0 == memcmp(content2, peek, peeked));
+
+  // Add more again to check head motion
+
+  uint8_t dd[] = { 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD };
+  added = ringbuffer_insert(rb, dd, sizeof(dd));
+  EXPECT_EQ((size_t)8, added);
+  EXPECT_EQ((size_t)1, ringbuffer_available(rb));
+
+  // Delete everything
+
+  ringbuffer_delete(rb, 16);
+  EXPECT_EQ((size_t)16, ringbuffer_available(rb));
+  EXPECT_EQ((size_t)0, ringbuffer_size(rb));
+
+  // Add small token
+
+  uint8_t ae[] = { 0xAE, 0xAE, 0xAE };
+  added = ringbuffer_insert(rb, ae, sizeof(ae));
+  EXPECT_EQ((size_t)13, ringbuffer_available(rb));
+
+  // Get everything
+
+  popped = ringbuffer_pop(rb, peek, 16);
+  EXPECT_EQ(added, popped);
+  EXPECT_EQ((size_t)16, ringbuffer_available(rb));
+  EXPECT_EQ((size_t)0, ringbuffer_size(rb));
+  ASSERT_TRUE(0 == memcmp(ae, peek, popped));
+
+  ringbuffer_free(rb);
+}
diff --git a/rtkbt/code/bt/osi/test/semaphore_test.cpp b/rtkbt/code/bt/osi/test/semaphore_test.cpp
new file mode 100755
index 0000000..c30dd0b
--- /dev/null
+++ b/rtkbt/code/bt/osi/test/semaphore_test.cpp
@@ -0,0 +1,87 @@
+#include <gtest/gtest.h>
+
+#include "AllocationTestHarness.h"
+
+extern "C" {
+#include <unistd.h>
+#include <sys/select.h>
+
+#include "osi/include/osi.h"
+#include "osi/include/reactor.h"
+#include "osi/include/semaphore.h"
+#include "osi/include/thread.h"
+}
+
+struct SemaphoreTestSequenceHelper {
+  semaphore_t *semaphore;
+  int counter;
+};
+
+namespace {
+  void sleep_then_increment_counter(void *context) {
+    SemaphoreTestSequenceHelper *helper =
+            reinterpret_cast<SemaphoreTestSequenceHelper*>(context);
+    assert(helper);
+    assert(helper->semaphore);
+    sleep(1);
+    ++helper->counter;
+    semaphore_post(helper->semaphore);
+  }
+} // namespace
+
+class SemaphoreTest : public AllocationTestHarness {};
+
+TEST_F(SemaphoreTest, test_new_simple) {
+  semaphore_t *semaphore = semaphore_new(0);
+  ASSERT_TRUE(semaphore != NULL);
+  semaphore_free(semaphore);
+}
+
+TEST_F(SemaphoreTest, test_new_with_value) {
+  semaphore_t *semaphore = semaphore_new(3);
+  ASSERT_TRUE(semaphore != NULL);
+
+  EXPECT_TRUE(semaphore_try_wait(semaphore));
+  EXPECT_TRUE(semaphore_try_wait(semaphore));
+  EXPECT_TRUE(semaphore_try_wait(semaphore));
+  EXPECT_FALSE(semaphore_try_wait(semaphore));
+
+  semaphore_free(semaphore);
+}
+
+TEST_F(SemaphoreTest, test_try_wait) {
+  semaphore_t *semaphore = semaphore_new(0);
+  ASSERT_TRUE(semaphore != NULL);
+
+  EXPECT_FALSE(semaphore_try_wait(semaphore));
+  semaphore_post(semaphore);
+  EXPECT_TRUE(semaphore_try_wait(semaphore));
+  EXPECT_FALSE(semaphore_try_wait(semaphore));
+
+  semaphore_free(semaphore);
+}
+
+TEST_F(SemaphoreTest, test_wait_after_post) {
+  semaphore_t *semaphore = semaphore_new(0);
+  ASSERT_TRUE(semaphore != NULL);
+  semaphore_post(semaphore);
+  semaphore_wait(semaphore);
+  semaphore_free(semaphore);
+}
+
+TEST_F(SemaphoreTest, test_ensure_wait) {
+  semaphore_t *semaphore = semaphore_new(0);
+  ASSERT_TRUE(semaphore != NULL);
+  thread_t *thread = thread_new("semaphore_test_thread");
+  ASSERT_TRUE(thread != NULL);
+
+  EXPECT_FALSE(semaphore_try_wait(semaphore));
+  SemaphoreTestSequenceHelper sequence_helper = {semaphore, 0};
+  thread_post(thread, sleep_then_increment_counter, &sequence_helper);
+  semaphore_wait(semaphore);
+  EXPECT_EQ(sequence_helper.counter, 1) <<
+      "semaphore_wait() did not wait for counter to increment";
+
+  semaphore_free(semaphore);
+  thread_free(thread);
+}
diff --git a/rtkbt/code/bt/osi/test/test_stubs.h b/rtkbt/code/bt/osi/test/test_stubs.h
new file mode 100755
index 0000000..dc38926
--- /dev/null
+++ b/rtkbt/code/bt/osi/test/test_stubs.h
@@ -0,0 +1,99 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+// Helper macros for stubbing out functions and modules for testing.
+
+// Stub out a function, with call counting and mode awareness
+#define STUB_FUNCTION(ret, name, params) \
+  UNUSED_ATTR static int name##_callcount; \
+  static ret name params { \
+    UNUSED_ATTR int _local_callcount = name##_callcount; \
+    name##_callcount++;
+
+// Expect a certain number of calls to the specified stub function
+#define EXPECT_CALL_COUNT(name, count) \
+  EXPECT_EQ((count), (name##_callcount)) << "expected " #name " to be called " #count " times"
+
+// Reset the call count for the specificed stub function
+#define RESET_CALL_COUNT(name) ((name##_callcount) = 0)
+
+// Use this in a stub function to catch unexpected calls.
+// Prints out a nice message including the call count, the
+// stub function name, and the mode index (sadly no mode name)
+#define UNEXPECTED_CALL EXPECT_TRUE(false) \
+  << "unexpected call " << _local_callcount \
+  << " to " << __func__ \
+  << " during mode " << (int)_current_mode
+
+#define MODE_IS(mode) (_current_mode == (mode))
+
+// Macro selection helpers
+#define OVERLOAD_CAT(A, B) A##B
+#define OVERLOAD_SELECT(NAME, NUM) OVERLOAD_CAT(NAME##_, NUM)
+#define OVERLOAD_GET_COUNT(_1, _2, _3, _4, _5, _6, COUNT, ...) COUNT
+#define OVERLOAD_VA_SIZE(...) OVERLOAD_GET_COUNT(__VA_ARGS__, 6, 5, 4, 3, 2, 1)
+#define OVERLOAD_OF(NAME, ...) OVERLOAD_SELECT(NAME, OVERLOAD_VA_SIZE(__VA_ARGS__))(__VA_ARGS__)
+
+// Use this to branch stub function execution to a specific mode or modes.
+// Treat it like an if statement. For example:
+//
+// DURING(dinner) EXPECT_EQ(bread_pudding, food);
+// DURING(midday_snack, midnight_snack) EXPECT_EQ(chocolate, food);
+#define DURING(...) OVERLOAD_OF(DURING, __VA_ARGS__)
+
+#define DURING_1(mode0) \
+  if (MODE_IS(mode0))
+#define DURING_2(mode0, mode1) \
+  if (MODE_IS(mode0) || MODE_IS(mode1))
+#define DURING_3(mode0, mode1, mode2) \
+  if (MODE_IS(mode0) || MODE_IS(mode1) || MODE_IS(mode2))
+#define DURING_4(mode0, mode1, mode2, mode3) \
+  if (MODE_IS(mode0) || MODE_IS(mode1) || MODE_IS(mode2) || MODE_IS(mode3))
+#define DURING_5(mode0, mode1, mode2, mode3, mode4) \
+  if (MODE_IS(mode0) || MODE_IS(mode1) || MODE_IS(mode2) || MODE_IS(mode3) || MODE_IS(mode4))
+#define DURING_6(mode0, mode1, mode2, mode3, mode4, mode5) \
+  if (MODE_IS(mode0) || MODE_IS(mode1) || MODE_IS(mode2) || MODE_IS(mode3) || MODE_IS(mode4) || MODE_IS(mode5))
+
+// Use this to branch stub function exeuction to a specific call
+// count index (zero based). Treat it like an if statement.
+// Usually most helpful following a DURING clause. For example:
+//
+// DURING (breakfast) AT_CALL(0) EXPECT_EQ(bacon, food);
+//
+// or
+//
+// DURING (three_course_meal) {
+//   AT_CALL(0) EXPECT_EQ(shrimp_cocktail, food);
+//   AT_CALL(1) EXPECT_EQ(bacon_wrapped_bacon, food);
+//   AT_CALL(1) EXPECT_EQ(chocolate_covered_fake_blueberries, food);
+// }
+#define AT_CALL(index) \
+  if (_local_callcount == index)
+
+// Declare all the available test modes for the DURING clauses
+// For example:
+//
+// DECLARE_TEST_MODES(breakfast, lunch, dinner);
+#define DECLARE_TEST_MODES(...) \
+  typedef enum { __VA_ARGS__ } _test_modes_t; \
+  static _test_modes_t _current_mode;
+
+// Get the current test mode
+#define CURRENT_TEST_MODE _current_mode
+
+#define TEST_MODES_T _test_modes_t
diff --git a/rtkbt/code/bt/osi/test/thread_test.cpp b/rtkbt/code/bt/osi/test/thread_test.cpp
new file mode 100755
index 0000000..b45365d
--- /dev/null
+++ b/rtkbt/code/bt/osi/test/thread_test.cpp
@@ -0,0 +1,59 @@
+#include <gtest/gtest.h>
+
+#include "AllocationTestHarness.h"
+
+extern "C" {
+#include <sys/select.h>
+
+#include "osi/include/reactor.h"
+#include "osi/include/thread.h"
+#include "osi/include/osi.h"
+}
+
+class ThreadTest : public AllocationTestHarness {};
+
+TEST_F(ThreadTest, test_new_simple) {
+  thread_t *thread = thread_new("test_thread");
+  ASSERT_TRUE(thread != NULL);
+  thread_free(thread);
+}
+
+TEST_F(ThreadTest, test_free_simple) {
+  thread_t *thread = thread_new("test_thread");
+  thread_free(thread);
+}
+
+TEST_F(ThreadTest, test_name) {
+  thread_t *thread = thread_new("test_name");
+  ASSERT_STREQ(thread_name(thread), "test_name");
+  thread_free(thread);
+}
+
+TEST_F(ThreadTest, test_long_name) {
+  thread_t *thread = thread_new("0123456789abcdef");
+  ASSERT_STREQ("0123456789abcdef", thread_name(thread));
+  thread_free(thread);
+}
+
+TEST_F(ThreadTest, test_very_long_name) {
+  thread_t *thread = thread_new("0123456789abcdefg");
+  ASSERT_STREQ("0123456789abcdef", thread_name(thread));
+  thread_free(thread);
+}
+
+static void thread_is_self_fn(void *context) {
+  thread_t *thread = (thread_t *)context;
+  EXPECT_TRUE(thread_is_self(thread));
+}
+
+TEST_F(ThreadTest, test_thread_is_self) {
+  thread_t *thread = thread_new("test_thread");
+  thread_post(thread, thread_is_self_fn, thread);
+  thread_free(thread);
+}
+
+TEST_F(ThreadTest, test_thread_is_not_self) {
+  thread_t *thread = thread_new("test_thread");
+  EXPECT_FALSE(thread_is_self(thread));
+  thread_free(thread);
+}
diff --git a/rtkbt/code/bt/osi/test/time_test.cpp b/rtkbt/code/bt/osi/test/time_test.cpp
new file mode 100755
index 0000000..e2059f0
--- /dev/null
+++ b/rtkbt/code/bt/osi/test/time_test.cpp
@@ -0,0 +1,76 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2015 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#include <gtest/gtest.h>
+
+#include "AllocationTestHarness.h"
+
+extern "C" {
+#include "osi/include/time.h"
+}
+
+// Generous upper bound: 10 seconds
+static const uint32_t TEST_TIME_DELTA_UPPER_BOUND_MS = 10 * 1000;
+
+class TimeTest : public AllocationTestHarness {};
+
+//
+// Test that the return value of time_get_os_boottime_ms() is not zero.
+//
+// NOTE: For now this test is disabled, because the return value
+// of time_get_os_boottime_ms() is 32-bits integer that could wrap-around
+// in 49.7 days. It should be re-enabled if/after the wrap-around issue
+// is resolved (e.g., if the return value is 64-bits integer).
+//
+#if 0
+TEST_F(TimeTest, test_time_get_os_boottime_ms_not_zero) {
+  uint32_t t1 = time_get_os_boottime_ms();
+  ASSERT_TRUE(t1 > 0);
+}
+#endif
+
+//
+// Test that the return value of time_get_os_boottime_ms()
+// is monotonically increasing within reasonable boundries.
+//
+TEST_F(TimeTest, test_time_get_os_boottime_ms_increases_upper_bound) {
+  uint32_t t1 = time_get_os_boottime_ms();
+  uint32_t t2 = time_get_os_boottime_ms();
+  ASSERT_TRUE((t2 - t1) < TEST_TIME_DELTA_UPPER_BOUND_MS);
+}
+
+//
+// Test that the return value of time_get_os_boottime_ms()
+// is increasing.
+//
+TEST_F(TimeTest, test_time_get_os_boottime_ms_increases_lower_bound) {
+  static const uint32_t TEST_TIME_SLEEP_MS = 100;
+  struct timespec delay;
+
+  delay.tv_sec = TEST_TIME_SLEEP_MS / 1000;
+  delay.tv_nsec = 1000 * 1000 * (TEST_TIME_SLEEP_MS % 1000);
+
+  // Take two timestamps with sleep in-between
+  uint32_t t1 = time_get_os_boottime_ms();
+  int err = nanosleep(&delay, &delay);
+  uint32_t t2 = time_get_os_boottime_ms();
+
+  ASSERT_TRUE(err == 0);
+  ASSERT_TRUE((t2 - t1) >= TEST_TIME_SLEEP_MS);
+  ASSERT_TRUE((t2 - t1) < TEST_TIME_DELTA_UPPER_BOUND_MS);
+}
diff --git a/rtkbt/code/bt/profile/Android.mk b/rtkbt/code/bt/profile/Android.mk
new file mode 100755
index 0000000..6143018
--- /dev/null
+++ b/rtkbt/code/bt/profile/Android.mk
@@ -0,0 +1,44 @@
+ ##############################################################################
+ #
+ #  Copyright (C) 2014 Google, Inc.
+ #
+ #  Licensed under the Apache License, Version 2.0 (the "License");
+ #  you may not use this file except in compliance with the License.
+ #  You may obtain a copy of the License at:
+ #
+ #  http://www.apache.org/licenses/LICENSE-2.0
+ #
+ #  Unless required by applicable law or agreed to in writing, software
+ #  distributed under the License is distributed on an "AS IS" BASIS,
+ #  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ #  See the License for the specific language governing permissions and
+ #  limitations under the License.
+ #
+ ##############################################################################
+
+LOCAL_PATH := $(call my-dir)
+
+# Bluetooth profile static library for target
+# ========================================================
+include $(CLEAR_VARS)
+
+LOCAL_C_INCLUDES := \
+    $(LOCAL_PATH)/.. \
+    $(LOCAL_PATH)/include \
+    $(LOCAL_PATH)/../btcore/include \
+    $(LOCAL_PATH)/../include \
+    $(bluetooth_C_INCLUDES)
+
+LOCAL_SRC_FILES := \
+    src/manager.c
+
+LOCAL_MODULE := libbtprofile-rtk
+LOCAL_MODULE_TAGS := optional
+LOCAL_SHARED_LIBRARIES := libc liblog
+LOCAL_MODULE_CLASS := STATIC_LIBRARIES
+
+LOCAL_CFLAGS += $(bluetooth_CFLAGS)
+LOCAL_CONLYFLAGS += $(bluetooth_CONLYFLAGS)
+LOCAL_CPPFLAGS += $(bluetooth_CPPFLAGS)
+
+include $(BUILD_STATIC_LIBRARY)
diff --git a/rtkbt/code/bt/profile/include/manager.h b/rtkbt/code/bt/profile/include/manager.h
new file mode 100755
index 0000000..587369f
--- /dev/null
+++ b/rtkbt/code/bt/profile/include/manager.h
@@ -0,0 +1,41 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+static const char PROFILE_MANAGER_MODULE[] = "profile_manager_module";
+
+typedef enum {
+  PROFILE_POWER_ACTIVE,
+  PROFILE_POWER_HOLD,
+  PROFILE_POWER_SNIFF,
+  PROFILE_POWER_PARK
+} profile_power_level_t;
+
+typedef struct profile_t {
+  const char *name;
+  profile_power_level_t lowest_acceptable_power_mode;
+  bool in_use;
+} profile_t;
+
+// Registers a given Bluetooth |profile| with the manager.
+void profile_register(const profile_t *profile);
+
+// Looks up a previously registered profile by |name|. If no profile was
+// registered by the given |name|, then this function returns NULL.
+const profile_t *profile_by_name(const char *name);
diff --git a/rtkbt/code/bt/profile/src/manager.c b/rtkbt/code/bt/profile/src/manager.c
new file mode 100755
index 0000000..6e3d45c
--- /dev/null
+++ b/rtkbt/code/bt/profile/src/manager.c
@@ -0,0 +1,87 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_profile_manager"
+
+#include <assert.h>
+#include <stdbool.h>
+
+#include "btcore/include/module.h"
+#include "profile/include/manager.h"
+#include "osi/include/future.h"
+#include "osi/include/hash_functions.h"
+#include "osi/include/hash_map.h"
+#include "osi/include/log.h"
+#include "osi/include/osi.h"
+
+static const size_t number_of_profile_buckets = 15;
+
+static bool initialized;
+static hash_map_t *profile_map;
+
+// Lifecycle management functions
+
+static future_t *init(void) {
+  profile_map = hash_map_new(
+    number_of_profile_buckets,
+    hash_function_string,
+    NULL,
+    NULL,
+    NULL);
+
+  initialized = true;
+  return NULL;
+}
+
+static future_t *clean_up(void) {
+  initialized = false;
+
+  hash_map_free(profile_map);
+  profile_map = NULL;
+
+  return NULL;
+}
+
+EXPORT_SYMBOL const module_t profile_manager_module = {
+  .name = PROFILE_MANAGER_MODULE,
+  .init = init,
+  .start_up = NULL,
+  .shut_down = NULL,
+  .clean_up = clean_up,
+  .dependencies = {
+    NULL
+  }
+};
+
+// Interface functions
+
+void profile_register(const profile_t *profile) {
+  assert(initialized);
+  assert(profile != NULL);
+  assert(profile->name != NULL);
+  assert(!hash_map_has_key(profile_map, profile->name));
+
+  hash_map_set(profile_map, profile->name, (void *) profile);
+}
+
+const profile_t *profile_by_name(const char *name) {
+  assert(initialized);
+  assert(name != NULL);
+
+  return (profile_t *)hash_map_get(profile_map, name);
+}
diff --git a/rtkbt/code/bt/realtek/Android.mk b/rtkbt/code/bt/realtek/Android.mk
new file mode 100755
index 0000000..7c2ea43
--- /dev/null
+++ b/rtkbt/code/bt/realtek/Android.mk
@@ -0,0 +1,32 @@
+LOCAL_PATH := $(call my-dir)
+# Common macros inherited by sub-makefiles
+rtk_local_C_INCLUDES := \
+        $(LOCAL_PATH)/include \
+        $(LOCAL_PATH)/.. \
+        $(LOCAL_PATH)/../bta/hh \
+        $(LOCAL_PATH)/../bta/include \
+        $(LOCAL_PATH)/../bta/sys \
+        $(LOCAL_PATH)/../bta/dm \
+        $(LOCAL_PATH)/../include \
+        $(LOCAL_PATH)/../stack/include \
+        $(LOCAL_PATH)/../stack/l2cap \
+        $(LOCAL_PATH)/../stack/a2dp \
+        $(LOCAL_PATH)/../stack/btm \
+        $(LOCAL_PATH)/../stack/avdt \
+        $(LOCAL_PATH)/../hcis \
+        $(LOCAL_PATH)/../hcis/include \
+        $(LOCAL_PATH)/../hcis/patchram \
+        $(LOCAL_PATH)/../udrv/include \
+        $(LOCAL_PATH)/../btif/include \
+        $(LOCAL_PATH)/../btif/co \
+        $(LOCAL_PATH)/../hci/include\
+        $(LOCAL_PATH)/../brcm/include \
+        $(LOCAL_PATH)/../embdrv/sbc/encoder/include \
+        $(LOCAL_PATH)/../utils/include \
+        $(LOCAL_PATH)/../osi/include \
+        external/tinyxml2 \
+        $(bluetooth_C_INCLUDES)
+
+rtk_local_CFLAGS += -DBUILDCFG $(bluetooth_CFLAGS)
+
+include $(call all-subdir-makefiles)
diff --git a/rtkbt/code/bt/realtek/include/bdroid_buildcfg.h b/rtkbt/code/bt/realtek/include/bdroid_buildcfg.h
new file mode 100755
index 0000000..fd4154d
--- /dev/null
+++ b/rtkbt/code/bt/realtek/include/bdroid_buildcfg.h
@@ -0,0 +1,70 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "../../../../../../../device/rockchip/common/bluetooth/bdroid_buildcfg.h"
+#undef _BDROID_BUILDCFG_H
+
+#ifndef _BDROID_BUILDCFG_H
+#define _BDROID_BUILDCFG_H
+
+//#define BTM_DEF_LOCAL_NAME   "Realtek Bluetooth"
+
+// SERVICE_CLASS:0x1A (Bit17 -Networking,Bit19 - Capturing,Bit20 -Object Transfer)
+// MAJOR CLASS: COMPUTER
+// MINOR CLASS: TABLET
+//#define BTA_DM_COD {0x1A, 0x01, 0x1C}
+
+#define BTA_GATT_DEBUG FALSE
+
+
+#define HCI_MAX_SIMUL_CMDS (1)
+#define BTM_BLE_SCAN_SLOW_INT_1 (144)
+#define BTM_BLE_SCAN_SLOW_WIN_1 (16)
+#define BTM_MAX_VSE_CALLBACKS  (6)
+
+#define BTM_BLE_CONN_INT_MIN_DEF     0x06
+#define BTM_BLE_CONN_INT_MAX_DEF     0x0C
+#define BTM_BLE_CONN_TIMEOUT_DEF     200
+
+#define BTIF_HF_SERVICES (BTA_HSP_SERVICE_MASK)
+#define BTIF_HF_SERVICE_NAMES  { BTIF_HSAG_SERVICE_NAME, NULL }
+
+#define BTA_DISABLE_DELAY 1000 /* in milliseconds */
+#define BTA_HOST_INTERLEAVE_SEARCH FALSE
+
+/*heartbeat log define*/
+#define BTPOLL_DBG FALSE
+/*hci log define*/
+#define BTHC_DBG FALSE
+/*avdtp log define*/
+//#define AVDT_DEBUG TRUE
+/*BT log verbose*/
+#define BT_TRACE_VERBOSE TRUE
+/* BT trace messages*/
+#define BT_USE_TRACES  TRUE
+/*A2DP SINK ENABLE*/
+#define BTA_AV_SINK_INCLUDED TRUE
+#define BLE_LOCAL_PRIVACY_ENABLED FALSE
+#define USE_AUDIO_TRACK TRUE
+/*BT lib vendor log*/
+//#define BTVND_DBG TRUE
+/*page timeout */
+#define BTA_DM_PAGE_TIMEOUT 8192
+#define BTM_LOCAL_IO_CAPS_BLE   BTM_IO_CAP_KBDISP
+#define BT_HCI_DEVICE_NODE_MAX_LEN 512
+
+#define KERNEL_MISSING_CLOCK_BOOTTIME_ALARM TRUE
+#endif
diff --git a/rtkbt/code/bt/realtek/include/rtkbt_api.h b/rtkbt/code/bt/realtek/include/rtkbt_api.h
new file mode 100755
index 0000000..1bae377
--- /dev/null
+++ b/rtkbt/code/bt/realtek/include/rtkbt_api.h
@@ -0,0 +1,295 @@
+#ifndef INCLUDE_RTKBT_API_H
+#define INCLUDE_RTKBT_API_H
+#include <ctype.h>
+#include <string.h>
+#include "bt_types.h"
+#include "rtkbt_config.h"
+#include "hardware/bluetooth.h"
+#include "rtkbt_api_int.h"
+
+#define RTKBT_TEST_ID               (0)
+#define RTKBT_VHID_ID               (1)
+#define RTKBT_AUTOPAIR_ID           (2)
+#define RTKBT_VR_ID                 (3)
+#define RTKBT_3DD_ID                (4)
+#define RTKBT_HEARTBEAT_ID          (5)
+#define RTKBT_HUAWEI_AUTOPAIR       (15)
+#define RTKBT_MAX_ID                (16)
+
+#define RTKBT_PLUGIN_BC             (0xFF)
+
+#define RTKBT_PLUGIN_DIR "/system/lib/rtkbt"
+#define RTKBT_CONF_DIR "/system/etc/bluetooth"
+#define RTKBT_CONF RTKBT_CONF_DIR"/rtkbt_plugins.conf"
+
+#define rtkbt_plugin_getbuf(x) plugin_getbuf((x), __FUNCTION__,__LINE__)
+#define rtkbt_plugin_freebuf(x) plugin_freebuf((x))
+
+
+static const char RTKBT_PLUGIN_MODULE[] = "rtkbt_plugin_module";
+
+/*************************************************************************************
+** plugin communicate each others with the args defined below
+**tPlugin_comm will be added by each plugin
+**
+*************************************************************************************/
+typedef struct
+{
+    tBTA_HH_DEV_CB * p_dev_cb;
+}tVih_2_Vr_g_dev_cb;
+
+//plugin communicate with each other, using different
+typedef union
+{
+    tVih_2_Vr_g_dev_cb  vr_dev_cb;
+}tPlugin_comm;
+
+enum{
+    VHID_2_VR_G_DEV_CB,
+};
+
+typedef int (* rtkbt_api_GenericCommand_func)(int id, int command, unsigned char * data, int len);
+typedef int (* rtkbt_api_Hook_func)(int event, void * arg, int len);
+typedef int (* rtkbt_api_Plugin_comm_func) (int id, int event, tPlugin_comm * plugin_arg);
+typedef struct{
+    int loglevel;
+}RTKBT_API_INIT_ARG;
+
+typedef struct{
+    unsigned int version;
+    int size;
+    /*******************************************************************************
+        **
+        ** Function         RegisterGenericCommand
+        **
+        ** Description     GenericCommand call from JAVA to  bluedroid, rtkbt_api_RegisterGenericCommand is used by plugin to register a callback for recv GenericCommand.(used by plugin).
+        ** Arguments      id: plugin id(RTKBT_AUTOPAIR_ID,RTKBT_VR_ID, etc.)
+        **                      handler: callback
+        ** Returns          0-success/other-fail
+        **
+        *******************************************************************************/
+    int (*RegisterGenericCommand)(int id, rtkbt_api_GenericCommand_func handler);
+    /*********************************************************************************
+        **
+        ** Function         RegisterPluginExMsg
+        **
+        ** Description     plugins need to communicate with each other for some reasons, register the func to rtkbt_api.c
+        ** Arguments      id: plugin id(RTKBT_AUTOPAIR_ID,RTKBT_VR_ID, etc.)
+        **                      handler: callback
+        ** Returns          0-success/other-fail
+        **
+    *************************************************************************************/
+    int (*RegisterPluginExMsg)(int id, rtkbt_api_Plugin_comm_func handler);
+    /*******************************************************************************
+        **
+        ** Function        Send_PluginMsg
+        **
+        ** Description    send event to dest plugin
+        ** Arguments    id: plugin id(RTKBT_AUTOPAIR_ID,RTKBT_VR_ID, etc.)
+        **                     event: internal event by each plugin.
+        **                     plugin_arg: data associated with event.
+        ** Returns         BT_STATUS_SUCCESS/BT_STATUS_FAIL
+        **
+        *******************************************************************************/
+    int (*Send_PluginMsg)(int id, int event, tPlugin_comm * plugin_arg);
+    /*******************************************************************************
+        **
+        ** Function        SendGenericEvent
+        **
+        ** Description    send GenericEvent from bluedroid&plugin to JAVA.(used by bluedroid&plugin).
+        ** Arguments    id: plugin id(RTKBT_AUTOPAIR_ID,RTKBT_VR_ID, etc.)
+        **                     event: internal event by each plugin.
+        **                     data: data associated with event.
+        **                     len:  length of data associated with event.
+        ** Returns         BT_STATUS_SUCCESS/BT_STATUS_FAIL
+        **
+        *******************************************************************************/
+    int (*SendGenericEvent)(int id, int event, unsigned char * data, int len);
+    /*******************************************************************************
+        **
+        ** Function         RegisterHook
+        **
+        ** Description     Register a callback to catch bluedroid Hooks.(used by plugin).
+        ** Arguments      id: plugin id(RTKBT_AUTOPAIR_ID,RTKBT_VR_ID, etc.)
+        **                      handler: callback
+        ** Returns          0-success/other-fail
+        **
+        *******************************************************************************/
+    int (*RegisterHook)(int id, rtkbt_api_Hook_func handler);
+    /*******************************************************************************
+        **
+        ** Function         GetConfig
+        **
+        ** Description     Register a callback to get config.(used by plugin).
+        ** Arguments      id: plugin id(RTKBT_AUTOPAIR_ID,RTKBT_VR_ID, etc.)
+        **                      group: config group(NULL-Global Group)
+        **                      item: config item(can't be NULL)
+        ** Returns          NULL-not found /other-value
+        **
+        *******************************************************************************/
+    char * (*GetConfig)(int id, char * group, char * item);
+    /*******************************************************************************
+        **
+        ** Typedef         SetUipcPath
+        **
+        ** Description     plugin set Uipc path,rtkbt_api_SetUipcPath must be called before UIPC_Open(used by plugin).
+        ** Arguments      ch_id: UIPC_CH_ID_RTKBT_CHANNEL_{1,2,3,4,5,6}
+        ** Arguments      path: data path for ch_id
+        ** Returns          0-success/other-fail
+        **
+        *******************************************************************************/
+    int (*SetUipcPath)(int ch_id, char * path);
+
+    void   *(*plugin_getbuf) (UINT16,const char*, int);
+    void    (*plugin_freebuf) (void *);
+    BOOLEAN (*UIPC_Open)(tUIPC_CH_ID ch_id, tUIPC_RCV_CBACK *p_cback);
+    void (*UIPC_Close)(tUIPC_CH_ID ch_id);
+    BOOLEAN (*UIPC_Ioctl)(tUIPC_CH_ID ch_id, UINT32 request, void *param);
+    UINT32 (*UIPC_Read)(tUIPC_CH_ID ch_id, UINT16 *p_msg_evt, UINT8 *p_buf, UINT32 len);
+    BOOLEAN (*UIPC_Send)(tUIPC_CH_ID ch_id, UINT16 msg_evt, UINT8 *p_buf, UINT16 msglen);
+    INT32 (*UIPC_Send_noblock)(tUIPC_CH_ID ch_id, UINT16 msg_evt, UINT8 *p_buf, UINT16 msglen);
+    void (*bta_hh_le_write_rpt)(tBTA_HH_DEV_CB *p_cb,tBTA_HH_RPT_TYPE r_type,BT_HDR *p_buf, UINT16 w4_evt );
+    tBTM_STATUS (*BTM_ReadInquiryRspTxPower) (tBTM_CMPL_CB *p_cb);
+    tBTM_STATUS (*BTM_RegisterForVSEvents) (tBTM_VS_EVT_CB *p_cb, BOOLEAN is_register);
+    tBTM_STATUS (*BTM_VendorSpecificCommand)(UINT16 opcode, UINT8 param_len,
+                                      UINT8 *p_param_buf, tBTM_VSC_CMPL_CB *p_cb);
+    tBTM_STATUS (*BTM_SetDeviceClass) (DEV_CLASS cod);
+    tBTM_STATUS (*BTM_SetDiscoverability) (UINT16 inq_mode, UINT16 window, UINT16 interval);
+    UINT8 * (*BTM_ReadDeviceClass) (void);
+    void (*btm_ble_process_adv_pkt) (UINT8 *p_data);
+    tBTA_HH_DEV_CB* (*bta_hh_le_find_dev_cb_by_bda)(BD_ADDR bda);
+    bt_status_t (*btif_storage_get_remote_device_property)(bt_bdaddr_t *remote_bd_addr,
+                                                    bt_property_t *property);
+    void (*BTA_HhSendData)(UINT8 dev_handle, BD_ADDR dev_bda, BT_HDR  *p_data);
+    void (*bta_dm_set_eir_config) (tBTA_DM_MSG *p_data);
+    BOOLEAN (*btsnd_hcic_set_reserved_lt_addr) (UINT8 lt_addr);
+    BOOLEAN (*btsnd_hcic_write_sync_train_param) (UINT8* p_data);
+    BOOLEAN (*btsnd_hcic_set_clb) (UINT8* p_data);
+    BOOLEAN (*btsnd_hcic_start_sync_train) (void);
+    BOOLEAN (*btsnd_hcic_write_clb_data) (UINT8* p_data, UINT8 len);
+    void (*btsnd_hcic_write_ext_inquiry_response) (void *buffer, UINT8 fec_req);
+    void (*BTA_GATTC_ConfigureMTU) (UINT16 conn_id, UINT16 mtu);
+    BOOLEAN (*btm_sec_is_a_bonded_dev) (BD_ADDR bda);
+    BOOLEAN (*btsnd_hcic_write_inqscan_type) (UINT8 type);
+    BOOLEAN (*btsnd_hcic_write_pagescan_type) (UINT8 type);
+    BOOLEAN (*btsnd_hcic_write_pagescan_cfg)(UINT16 interval,UINT16 window);
+    BOOLEAN (*btsnd_hcic_write_scan_enable)(UINT8 flag);
+}RTKBT_API_CALLBACK;
+typedef int (* Rtkbt_Plugin_Init_func)(RTKBT_API_CALLBACK * callback, RTKBT_API_INIT_ARG * arg);
+
+enum {
+    RTKBT_HOOK_ENABLE_BT_BEGIN = 1,         // args: int    len:0
+    RTKBT_HOOK_ENABLE_BT_COMPLETE,          // args: N/A    len:0
+    RTKBT_HOOK_DISABLE_BT_BEGIN,            // args: N/A    len:0
+    RTKBT_HOOK_DISABLE_BT_COMPLETE,         // args: int    len:0
+    RTKBT_HOOK_HID_STATUS,                  // args: RTKBT_HOOK_HID_STATUS_ARG   len:sizeof(RTKBT_HOOK_HID_STATUS_ARG)
+    RTKBT_HOOK_BLE_HH_NOTIY,                // args: RTKBT_HOOK_BLE_HH_NOTIY_ARG   len:sizeof(RTKBT_HOOK_BLE_HH_NOTIY_ARG)
+    RTKBT_HOOK_AUTOPAIR_VND_EVENT,          // args: NULL   len:0
+    RTKBT_HOOK_LE_HID_WHITE_LIST_STATUS,    // args: RTKBT_HOOK_HID_STATUS_ARG   len:sizeof(RTKBT_HOOK_HID_STATUS_ARG)
+    RTKBT_HOOK_RECEIVE_HCI_VENDOR_EVENT,               // args: BT_HDR*    len:0
+    RTKBT_HOOK_HH_LE_OPEN_CMPL,             // args: tBTA_HH_DEV_CB *   len: sizeof(tBTA_HH_DEV_CB)
+    RTKBT_HOOK_GATTC_CFG_MTU_EVT,           // args: tBTA_GATTC_CFG_MTU* len: sizeof(tBTA_GATTC_CFG_MTU)
+    RTKBT_HOOK_HEARTBEAT_EVENT_COMPLETE,
+};
+typedef struct{
+    int status;
+    bt_bdaddr_t * addr;
+}RTKBT_HOOK_HID_STATUS_ARG;
+#include "bta_hh_int.h"
+#include "bta_dm_int.h"
+#include "bta_gatt_api.h"
+typedef struct{
+    tBTA_HH_DEV_CB* p_dev_cb;
+    tBTA_HH_LE_RPT* p_rpt;
+    tBTA_GATTC_NOTIFY *p_data;
+}RTKBT_HOOK_BLE_HH_NOTIY_ARG;
+typedef struct{
+    BOOLEAN         add_or_remv;
+    tBTM_SEC_DEV_REC* p_dev_rec;
+}RTKBT_HOOK_LE_HID_STATUS_ARG;
+
+
+/*******************************************************************************
+**
+** Function         rtkbt_api_Hook
+**
+** Description     call Hooks(used by bluedroid).
+** Arguments      status: 1-connected / 0-disconnected
+**                      addr: HID device's address
+** Returns          0-success/other-fail
+**
+*******************************************************************************/
+extern int rtkbt_api_Hook(int event, void * arg, int len);
+
+/*******************************************************************************
+**
+** Typedef         rtkbt_api_GetUipcPath
+**
+** Description     When UIPC_Open called, Uipc get DataPath by call rtkbt_api_GetUipcPath(used by bluedroid).
+** Arguments      ch_id: UIPC_CH_ID_RTKBT_CHANNEL_{1,2,3,4,5,6}
+** Returns          data path
+**
+*******************************************************************************/
+extern char * rtkbt_api_GetUipcPath(int ch_id);
+extern char * rtkbt_api_GetConfig(int id, char * group, char * item);
+
+
+static inline int rtkbt_api_NotifyHIDStatus(int status, bt_bdaddr_t* addr)
+{
+    RTKBT_HOOK_HID_STATUS_ARG arg;
+    arg.status = status;
+    arg.addr = addr;
+    return rtkbt_api_Hook(RTKBT_HOOK_HID_STATUS, &arg, sizeof(arg));
+}
+static inline int rtkbt_api_BleHHNotify(tBTA_HH_DEV_CB* p_dev_cb, tBTA_HH_LE_RPT* p_rpt, tBTA_GATTC_NOTIFY *p_data)
+{
+    RTKBT_HOOK_BLE_HH_NOTIY_ARG arg;
+    arg.p_dev_cb = p_dev_cb;
+    arg.p_rpt = p_rpt;
+    arg.p_data = p_data;
+    return rtkbt_api_Hook(RTKBT_HOOK_BLE_HH_NOTIY, &arg, sizeof(arg));
+}
+
+static inline int rtkbt_api_NotifyLeHIDWhitelistStatus(int to_add, tBTM_SEC_DEV_REC* p_dev_rec)
+{
+    RTKBT_HOOK_LE_HID_STATUS_ARG arg;
+    arg.add_or_remv = to_add;
+    arg.p_dev_rec = p_dev_rec;
+    return rtkbt_api_Hook(RTKBT_HOOK_LE_HID_WHITE_LIST_STATUS, &arg, sizeof(arg));
+}
+
+#define rtkbt_api_XDIGIT2INT(x)   (((x)>='a')?((x)-'a'+10):(((x)>='A')?((x)-'A'+10):((x)-'0')))
+static inline int rtkbt_api_str2hex(char * str, UINT8 * hex, int *len)
+{
+    int i,size;
+
+    size = strlen(str);
+    if(size%2)
+    {
+        *len = 0;
+        return -1;
+    }
+    for(i=0; i< size;i+=2)
+    {
+        if(isxdigit(str[i])&&isxdigit(str[i+1]))
+            hex[i>>1] = (rtkbt_api_XDIGIT2INT(str[i])<<4)|rtkbt_api_XDIGIT2INT(str[i+1]);
+        else
+            return -2;
+    }
+    *len = i>>1;
+    return 0;
+}
+
+
+struct PLUGIN_INFO_ST{
+    unsigned int version;
+    Rtkbt_Plugin_Init_func init;
+};
+
+#define PLUGIN_INIT(func) \
+   EXPORT_SYMBOL struct PLUGIN_INFO_ST  PLUGIN_INFO = \
+    {   \
+        .version = RTKBT_API_VERSION, \
+        .init = (func) \
+    }
+#endif
diff --git a/rtkbt/code/bt/realtek/include/rtkbt_api_int.h b/rtkbt/code/bt/realtek/include/rtkbt_api_int.h
new file mode 100755
index 0000000..4f18522
--- /dev/null
+++ b/rtkbt/code/bt/realtek/include/rtkbt_api_int.h
@@ -0,0 +1,27 @@
+#include "rtkbt_api_ver.h"
+#include "bta_gatt_api.h"
+#include "bta_hh_api.h"
+#include "bta_hh_int.h"
+#include "uipc.h"
+#include "bt_types.h"
+#include "btm_api.h"
+#include "btm_int.h"
+#include "bta_api.h"
+#include "hcimsgs.h"
+#include "hcidefs.h"
+#include "bta_dm_int.h"
+
+#define RTKBT_API_VERSION   (SUBVER_RTKBT_TOOLCHAIN<<24|SUBVER_RTKBT_API<<16|SUBVER_RTKBT_REVISION<<8|SUBVER_RTKBT_CUSTOMIZED_REVISION)
+
+#ifdef BLUETOOTH_RTK_DBG_MEM
+extern void   *RTKBT_GKI_getbuf (UINT16, const char*, int);
+#else
+extern void   *GKI_getbuf (UINT16);
+#endif
+
+#define rtkbt_plugin_getbuf(x) plugin_getbuf((x), __FUNCTION__,__LINE__)
+#define rtkbt_plugin_freebuf(x) plugin_freebuf((x))
+extern void bta_hh_le_write_rpt(tBTA_HH_DEV_CB *p_cb,
+                                 tBTA_HH_RPT_TYPE r_type,
+                                                          BT_HDR *p_buf, UINT16 w4_evt );
+extern tBTA_HH_DEV_CB * bta_hh_le_find_dev_cb_by_bda(BD_ADDR bda);
diff --git a/rtkbt/code/bt/realtek/include/rtkbt_api_ver.h b/rtkbt/code/bt/realtek/include/rtkbt_api_ver.h
new file mode 100755
index 0000000..2cb54d4
--- /dev/null
+++ b/rtkbt/code/bt/realtek/include/rtkbt_api_ver.h
@@ -0,0 +1,6 @@
+#include "rtkbt_api_ver_toolchain.h"
+
+#define SUBVER_RTKBT_API    (1)
+#define SUBVER_RTKBT_REVISION     (1)
+#define SUBVER_RTKBT_CUSTOMIZED_REVISION (0)
+
diff --git a/rtkbt/code/bt/realtek/include/rtkbt_api_ver_toolchain.h b/rtkbt/code/bt/realtek/include/rtkbt_api_ver_toolchain.h
new file mode 100755
index 0000000..3e1ae3e
--- /dev/null
+++ b/rtkbt/code/bt/realtek/include/rtkbt_api_ver_toolchain.h
@@ -0,0 +1,6 @@
+/*
+	this file is auto generated by toolchain_check.sh Version: 0.1
+		1 	// aosp: prebuilts/gcc/linux-x86/arm/arm-linux-androideabi-4.8 
+		2 	// aosp: prebuilts/gcc/linux-x86/arm/arm-linux-androideabi-4.9 
+*/
+#define SUBVER_RTKBT_TOOLCHAIN (3)
diff --git a/rtkbt/code/bt/realtek/include/rtkbt_config.h b/rtkbt/code/bt/realtek/include/rtkbt_config.h
new file mode 100755
index 0000000..2b5182e
--- /dev/null
+++ b/rtkbt/code/bt/realtek/include/rtkbt_config.h
@@ -0,0 +1,6 @@
+#ifndef INCLUDE_RTKBT_CONFIG_H
+#define INCLUDE_RTKBT_CONFIG_H
+
+//#define BLUETOOTH_RTK_DBG_MEM
+
+#endif
diff --git a/rtkbt/code/bt/realtek/src/Android.mk b/rtkbt/code/bt/realtek/src/Android.mk
new file mode 100755
index 0000000..8103f2a
--- /dev/null
+++ b/rtkbt/code/bt/realtek/src/Android.mk
@@ -0,0 +1,17 @@
+LOCAL_PATH := $(call my-dir)
+
+# libbt-rtkbt.a
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES += rtkbt_api.c rtkbt_conf.c
+
+LOCAL_C_INCLUDES := $(rtk_local_C_INCLUDES)
+LOCAL_CFLAGS += $(rtk_local_CFLAGS) -Wno-error=unused-parameter
+
+LOCAL_MODULE_TAGS := optional
+LOCAL_SHARED_LIBRARIES := libcutils libc
+LOCAL_MODULE := libbt-rtkbt
+#LOCAL_MULTILIB := 32
+
+include $(BUILD_STATIC_LIBRARY)
+
diff --git a/rtkbt/code/bt/realtek/src/rtkbt_api.c b/rtkbt/code/bt/realtek/src/rtkbt_api.c
new file mode 100755
index 0000000..fbb1a76
--- /dev/null
+++ b/rtkbt/code/bt/realtek/src/rtkbt_api.c
@@ -0,0 +1,444 @@
+#define LOG_TAG "RTKBT_API"
+#ifdef BLUETOOTH_RTK_API
+#include <string.h>
+#include <dlfcn.h>
+#include <stdlib.h>
+#include <pthread.h>
+
+#include <hardware/bluetooth.h>
+#include "hardware/bt_rtkbt.h"
+//#include "bt_target.h"
+//#include "bt_trace.h"
+#include "btif_common.h"
+#include "rtkbt_api.h"
+#include "btif_storage.h"
+#include "uipc.h"
+#include "btcore/include/module.h"
+
+enum {
+    EVENT_GENERIC = 1,
+};
+
+static rtkbt_callbacks_t * rtkbt_callbacks = NULL;
+static pthread_mutexattr_t rtkbt_mutexattr;
+static pthread_mutex_t rtkbt_mutex;
+static bool stopServiceFlag = false;
+extern int rtkbt_loadconfig(char * path);
+extern int rtkbt_conf_init();
+extern int rtkbt_conf_exit();
+
+#include "uipc.h"
+static char * rtkbt_UipcPath[UIPC_CH_NUM];
+char * rtkbt_api_GetUipcPath(int ch_id)
+{
+    return rtkbt_UipcPath[ch_id];
+}
+int rtkbt_api_SetUipcPath(int ch_id, char * path)
+{
+    if((ch_id < UIPC_CH_ID_RTKBT_CHANNEL_1)||(ch_id > UIPC_CH_ID_RTKBT_CHANNEL_6))
+    {
+        ALOGE("%s ch_id(%d) is out of range,UIPC_CH_ID_RTKBT_CHANNEL_1=%d UIPC_CH_ID_RTKBT_CHANNEL_6=%d\n", __FUNCTION__, ch_id, UIPC_CH_ID_RTKBT_CHANNEL_1, UIPC_CH_ID_RTKBT_CHANNEL_6);
+        return -1;
+    }
+    char * buffer = malloc(strlen(path)+1);
+    if(buffer == NULL)
+    {
+        BTIF_TRACE_ERROR("%s GKI_getbuf return NULL", __FUNCTION__);
+        return -1;
+    }
+    strcpy(buffer, path);
+    rtkbt_UipcPath[ch_id] = buffer;
+    return 0;
+}
+
+static rtkbt_api_Hook_func rtkbt_Hook_funcs[RTKBT_MAX_ID] = {0};
+int rtkbt_api_Hook(int event, void* arg, int len)
+{
+    int i,res = 0;
+    pthread_mutex_lock(&rtkbt_mutex);
+    for(i=1; i< RTKBT_MAX_ID; i++)
+    {
+        if(rtkbt_Hook_funcs[i])
+        {
+            res |= rtkbt_Hook_funcs[i](event, arg, len);
+        }
+    }
+    pthread_mutex_unlock(&rtkbt_mutex);
+    if(stopServiceFlag && event == RTKBT_HOOK_DISABLE_BT_COMPLETE)
+        memset(rtkbt_Hook_funcs, 0, sizeof(rtkbt_Hook_funcs));
+    return res;
+}
+int rtkbt_api_RegisterHook(int id, rtkbt_api_Hook_func handler)
+{
+    if((id<0)||(id>=RTKBT_MAX_ID))
+    {
+        BTIF_TRACE_ERROR("%s id(%d) is out of range,RTKBT_MAX_ID=%d\n", __FUNCTION__, id, RTKBT_MAX_ID);
+        return -1;
+    }
+    BTIF_TRACE_API("%s", __FUNCTION__);
+    pthread_mutex_lock(&rtkbt_mutex);
+    rtkbt_Hook_funcs[id] = handler;
+    pthread_mutex_unlock(&rtkbt_mutex);
+    return 0;
+}
+
+static rtkbt_api_Plugin_comm_func rtkbt_Plugin_comm_funcs[RTKBT_MAX_ID] = {0};
+/*************************************************************************************************************
+    **
+    ** Function         rtkbt_api_RegisterPluginExMsg
+    **
+    ** Description     plugins need to communicate with each other for some reason, register the func to rtkbt_api.c
+    ** Arguments      id: plugin id(RTKBT_AUTOPAIR_ID,RTKBT_VR_ID, etc.)
+    **                      handler: callback
+    ** Returns          0-success/other-fail
+    **
+**************************************************************************************************************/
+int rtkbt_api_RegisterPluginExMsg(int id, rtkbt_api_Plugin_comm_func handler) {
+    BTIF_TRACE_API("%s", __FUNCTION__);
+    if((id<0)||(id>=RTKBT_MAX_ID))
+    {
+        BTIF_TRACE_ERROR("%s id(%d) is out of range,RTKBT_MAX_ID=%d\n", __FUNCTION__, id, RTKBT_MAX_ID);
+        return -1;
+    }
+    pthread_mutex_lock(&rtkbt_mutex);
+    rtkbt_Plugin_comm_funcs[id] = handler;
+    pthread_mutex_unlock(&rtkbt_mutex);
+    return 0;
+}
+
+int rtkbt_api_Send_PluginMsg(int id, int event, tPlugin_comm * plugin_arg) {
+    BTIF_TRACE_API("%s", __FUNCTION__);
+    int i,res;
+    pthread_mutex_lock(&rtkbt_mutex);
+    if(id == RTKBT_PLUGIN_BC) {
+        for(i = 0; i < RTKBT_MAX_ID; i++) {
+            if(rtkbt_Plugin_comm_funcs[i])
+                rtkbt_Plugin_comm_funcs[i](i,event,plugin_arg);
+        }
+        res = 0;
+    }
+    else{
+        if((id<0)||(id>=RTKBT_MAX_ID))
+        {
+            BTIF_TRACE_ERROR("%s id(%d) is out of range,RTKBT_MAX_ID=%d\n", __FUNCTION__, id, RTKBT_MAX_ID);
+            res = -1;
+        }
+
+        if(rtkbt_Plugin_comm_funcs[id]) {
+            res = rtkbt_Plugin_comm_funcs[id](id,event,plugin_arg);;
+        }
+        else
+            res = -1;
+    }
+    pthread_mutex_unlock(&rtkbt_mutex);
+    return res;
+}
+
+static rtkbt_api_GenericCommand_func rtkbt_GenericCommand_funcs[RTKBT_MAX_ID] = {0};
+int rtkbt_api_RegisterGenericCommand(int id, rtkbt_api_GenericCommand_func handler)
+{
+    BTIF_TRACE_API("%s", __FUNCTION__);
+    if((id<0)||(id>=RTKBT_MAX_ID))
+    {
+        BTIF_TRACE_ERROR("%s id(%d) is out of range,RTKBT_MAX_ID=%d\n", __FUNCTION__, id, RTKBT_MAX_ID);
+        return -1;
+    }
+    pthread_mutex_lock(&rtkbt_mutex);
+    rtkbt_GenericCommand_funcs[id] = handler;
+    pthread_mutex_unlock(&rtkbt_mutex);
+    return 0;
+}
+static int rtkbt_GenericCommand(int id, int command, unsigned char * data, int len)
+{
+    int res;
+    BTIF_TRACE_API("%s(%d,%d,*,%d)", __FUNCTION__, id, command, len);
+    if((id<0)||(id>=RTKBT_MAX_ID))
+    {
+        BTIF_TRACE_ERROR("%s id(%d) is out of range,RTKBT_MAX_ID=%d\n", __FUNCTION__, id, RTKBT_MAX_ID);
+        return -9998;
+    }
+    pthread_mutex_lock(&rtkbt_mutex);
+    if(rtkbt_GenericCommand_funcs[id])
+        res = rtkbt_GenericCommand_funcs[id](id, command, data, len);
+    else
+        res = -9999;
+    pthread_mutex_unlock(&rtkbt_mutex);
+    return res;
+}
+/*
+    every plugin must register rtkbt_GenericCommand.
+    JNI check features by GetFeature.
+    0- not supported /other-supported
+*/
+static int rtkbt_GetFeature(int id)
+{
+    int res = 0;
+    BTIF_TRACE_API("%s(%d)", __FUNCTION__, id);
+    if((id<0)||(id>=RTKBT_MAX_ID))
+    {
+        BTIF_TRACE_ERROR("%s id(%d) is out of range,RTKBT_MAX_ID=%d\n", __FUNCTION__, id, RTKBT_MAX_ID);
+        return 0;
+    }
+    pthread_mutex_lock(&rtkbt_mutex);
+    if((id>0)&&(id<RTKBT_MAX_ID))
+        res = (rtkbt_GenericCommand_funcs[id]?1:0);
+    pthread_mutex_unlock(&rtkbt_mutex);
+    return res;
+}
+/*
+    internal function
+    it must execute in btif task
+*/
+static void rtkbt_SendGenericEvent(char* p_param)
+{
+    int * p;
+    int id,event,len;
+
+    p = (int*)p_param;
+    id = *p++;
+    event = *p++;
+    len = *p++;
+    BTIF_TRACE_ERROR("rtkbt_SendGenericEvent(%d,%d,%08x,%d)\n", id, event, p, len);
+
+    if(rtkbt_callbacks && rtkbt_callbacks->onGenericEvent)
+        rtkbt_callbacks->onGenericEvent(id, event, (unsigned char *)p, len);
+    return;
+}
+/*
+    internal function
+    it must execute in btif task
+*/
+static void rtkbt_SendEvent(UINT16 event, char* p_param)
+{
+    BTIF_TRACE_ERROR("rtkbt_SendEvent(%d,%08x)\n", event, p_param);
+    switch(event)
+    {
+        case EVENT_GENERIC:
+            rtkbt_SendGenericEvent(p_param);
+            break;
+        default:
+            break;
+    }
+    return;
+}
+/*
+    api, it's used by plugin or bluedroid
+*/
+int rtkbt_api_SendGenericEvent(int id, int event, unsigned char * data, int len)
+{
+    char buffer[1024];
+    int * ip;
+    if((id<0)||(id>=RTKBT_MAX_ID))
+    {
+        BTIF_TRACE_ERROR("%s id(%d) is out of range,RTKBT_MAX_ID=%d\n", __FUNCTION__, id, RTKBT_MAX_ID);
+        return -1;
+    }
+
+    BTIF_TRACE_API("rtkbt_api_SendGenericEvent(%d,%d,%08x,%d)\n", id, event, data, len);
+    if(len > 1000)
+    {
+        BTIF_TRACE_ERROR("rtkbt_api_SendGenericEvent(%d,%d,%08x,%d) len too long\n", id, event, data, len);
+        return -1;
+    }
+    if(rtkbt_callbacks && rtkbt_callbacks->onGenericEvent)
+    {
+        ip = (int *)buffer;
+        *ip++ = id;
+        *ip++ = event;
+        *ip++ = len;
+        memcpy(ip, data, len);
+        btif_transfer_context(rtkbt_SendEvent,EVENT_GENERIC, buffer, (len+12), 0);
+    }else
+        BTIF_TRACE_ERROR("rtkbt_api_SendGenericEvent(%d,%d,%08x,%d) rtkbt_callbacks == NULL or onGenericEvent==NULL\n", id, event, data, len);
+
+    return -1;
+}
+static void *rtkbt_api_getbuf (UINT16 size, const char* func, int line)
+{
+#ifdef BLUETOOTH_RTK_DBG_MEM
+    return RTKBT_GKI_getbuf(size, func, line);
+#else
+    return osi_malloc(size);
+#endif
+}
+static void rtkbt_api_freebuf (void * p)
+{
+    osi_free(p);
+}
+RTKBT_API_CALLBACK rtkbt_api_callbacks = {
+    .version = RTKBT_API_VERSION,
+    .size = sizeof(RTKBT_API_CALLBACK),
+    .RegisterGenericCommand = rtkbt_api_RegisterGenericCommand,
+    .RegisterPluginExMsg = rtkbt_api_RegisterPluginExMsg,
+    .Send_PluginMsg = rtkbt_api_Send_PluginMsg,
+    .SendGenericEvent = rtkbt_api_SendGenericEvent,
+    .RegisterHook = rtkbt_api_RegisterHook,
+    .GetConfig = rtkbt_api_GetConfig,
+    .SetUipcPath = rtkbt_api_SetUipcPath,
+    .plugin_getbuf = rtkbt_api_getbuf,
+    .plugin_freebuf = rtkbt_api_freebuf,
+    .UIPC_Send = UIPC_Send,
+    .UIPC_Open = UIPC_Open,
+    .UIPC_Close = UIPC_Close,
+    .UIPC_Ioctl = UIPC_Ioctl,
+    .UIPC_Read = UIPC_Read,
+    .UIPC_Send_noblock = UIPC_Send_noblock,
+    .bta_hh_le_write_rpt = bta_hh_le_write_rpt,
+    .BTM_ReadInquiryRspTxPower = BTM_ReadInquiryRspTxPower,
+    .BTM_RegisterForVSEvents = BTM_RegisterForVSEvents,
+    .BTM_VendorSpecificCommand = BTM_VendorSpecificCommand,
+    .BTM_SetDeviceClass = BTM_SetDeviceClass,
+    .BTM_SetDiscoverability = BTM_SetDiscoverability,
+    .BTM_ReadDeviceClass = BTM_ReadDeviceClass,
+    .btm_ble_process_adv_pkt = btm_ble_process_adv_pkt,
+    .bta_hh_le_find_dev_cb_by_bda = bta_hh_le_find_dev_cb_by_bda,
+    .btif_storage_get_remote_device_property = btif_storage_get_remote_device_property,
+    .BTA_HhSendData = BTA_HhSendData,
+    .btsnd_hcic_write_ext_inquiry_response = btsnd_hcic_write_ext_inquiry_response,
+    .BTA_GATTC_ConfigureMTU = BTA_GATTC_ConfigureMTU,
+    .btm_sec_is_a_bonded_dev = btm_sec_is_a_bonded_dev,
+    .btsnd_hcic_write_inqscan_type = btsnd_hcic_write_inqscan_type,
+    .btsnd_hcic_write_pagescan_type = btsnd_hcic_write_pagescan_type,
+    .btsnd_hcic_write_pagescan_cfg = btsnd_hcic_write_pagescan_cfg,
+    .btsnd_hcic_write_scan_enable = btsnd_hcic_write_scan_enable,
+};
+/*
+    loadplugins list in /system/etc/bluetooth/rtkbt_plugins.conf
+    a sample of rtkbt_plugins.conf:
+
+    test.so
+    vr_iflytek.so
+    vhid.so
+
+*/
+void loadplugins(RTKBT_API_CALLBACK * callback)
+{
+    char path[1024];
+    char plugin[64];
+    char * p;
+    int i;
+    void * handle;
+    struct PLUGIN_INFO_ST * plugin_info = NULL;
+    FILE * fp;
+    RTKBT_API_INIT_ARG arg;
+
+    fp = fopen(RTKBT_CONF, "r");
+    if(!fp)
+    {
+        BTIF_TRACE_ERROR("fopen %s fail",RTKBT_CONF);
+        return;
+    }
+
+    while(fgets(plugin, sizeof(plugin)-1, fp) != NULL)
+    {
+        for(i = (strlen(plugin)-1); ((plugin[i]==0x0d)||(plugin[i]==0x0a));i--)
+        {
+            plugin[i] = 0;
+        }
+        memset(path, 0 ,sizeof(path));
+        p = strstr(plugin, ":");
+        if(p)
+        {
+            arg.loglevel = atoi(p+1);
+            *p = 0;
+        }else
+            arg.loglevel = 0;
+
+        sprintf(path, "%s/rtkbt_plugin_%s.conf", RTKBT_CONF_DIR, plugin);
+        BTIF_TRACE_DEBUG("loadconfig(%s) ... ", path);
+        rtkbt_loadconfig(path);
+        sprintf(path, "%s/%s.so", RTKBT_PLUGIN_DIR, plugin);
+        BTIF_TRACE_DEBUG("loadplugins(%s) ... ", path);
+        handle = dlopen(path, RTLD_NOW);
+        if(!handle){
+            BTIF_TRACE_ERROR("dlopen(%s) fail!", path);
+            continue;
+        }
+        plugin_info = dlsym(handle, "PLUGIN_INFO");
+        if(plugin_info)
+        {
+            if((plugin_info->version&0xffff0000) == (RTKBT_API_VERSION&0xffff0000)){
+                BTIF_TRACE_API("loadplugin(%s) OK: Plugin Version(%08x) RTKBT_API_VERSION(%08x)", path, plugin_info->version, RTKBT_API_VERSION);
+                plugin_info->init(callback, &arg);
+            }else
+                BTIF_TRACE_ERROR("loadplugin(%s) fail: Plugin Version(%08x) RTKBT_API_VERSION(%08x)", path, plugin_info->version, RTKBT_API_VERSION);
+        }else
+            BTIF_TRACE_ERROR("loadplugin(%s) fail:dlsym(PLUGIN_INFO) fail!", path);
+    }
+    if(fp)
+        fclose(fp);
+
+    return;
+}
+
+static bt_status_t init(rtkbt_callbacks_t* callbacks)
+{
+    BTIF_TRACE_API("%s RTKBT_API_VERSION: %08x", __FUNCTION__, RTKBT_API_VERSION);
+    pthread_mutexattr_init(&rtkbt_mutexattr);
+    pthread_mutex_init(&rtkbt_mutex, &rtkbt_mutexattr);
+    stopServiceFlag = false;
+    memset(rtkbt_GenericCommand_funcs, 0, sizeof(rtkbt_GenericCommand_funcs));
+    memset(rtkbt_Hook_funcs, 0, sizeof(rtkbt_Hook_funcs));
+    memset(rtkbt_UipcPath, 0, sizeof(rtkbt_UipcPath));
+    rtkbt_conf_init();
+    rtkbt_callbacks = callbacks;
+    UIPC_Init(0);
+    loadplugins(&rtkbt_api_callbacks);
+    rtkbt_api_Hook(RTKBT_HOOK_ENABLE_BT_COMPLETE, (void *)BT_STATE_ON, 0);
+    return BT_STATUS_SUCCESS;
+}
+static void cleanup()
+{
+    int i;
+    BTIF_TRACE_API("%s", __FUNCTION__);
+    pthread_mutex_lock(&rtkbt_mutex);
+    rtkbt_conf_exit();
+    memset(rtkbt_GenericCommand_funcs, 0, sizeof(rtkbt_GenericCommand_funcs));
+    stopServiceFlag = true;
+    for(i=0;i<UIPC_CH_NUM;i++)
+    {
+        if(rtkbt_UipcPath[i])
+            free(rtkbt_UipcPath[i]);
+    }
+    memset(rtkbt_UipcPath, 0, sizeof(rtkbt_UipcPath));
+    pthread_mutex_unlock(&rtkbt_mutex);
+    return;
+}
+
+rtkbt_interface_t bt_rtkbt_interface = {
+    .size = sizeof(rtkbt_interface_t),
+    .init = init,
+    .cleanup = cleanup,
+    .GetFeature = rtkbt_GetFeature,
+    .GenericCommand = rtkbt_GenericCommand,
+};
+const rtkbt_interface_t *btif_rtkbt_get_interface(void)
+{
+    BTIF_TRACE_API("%s", __FUNCTION__);
+    return &bt_rtkbt_interface;
+}
+
+static future_t *start_up(void) {
+  init(NULL);
+  return NULL;
+}
+
+static future_t *shut_down(void) {
+  cleanup();
+  return NULL;
+}
+
+EXPORT_SYMBOL const module_t rtkbt_plugin_module = {
+  .name = RTKBT_PLUGIN_MODULE,
+  .init = NULL,
+  .start_up = start_up,
+  .shut_down = shut_down,
+  .clean_up = NULL,
+  .dependencies = {
+    NULL,
+    NULL
+  }
+};
+
+
+#endif
diff --git a/rtkbt/code/bt/realtek/src/rtkbt_conf.c b/rtkbt/code/bt/realtek/src/rtkbt_conf.c
new file mode 100755
index 0000000..f857eab
--- /dev/null
+++ b/rtkbt/code/bt/realtek/src/rtkbt_conf.c
@@ -0,0 +1,321 @@
+#define LOG_TAG "RTKBT_API"
+#ifdef BLUETOOTH_RTK_API
+#include <string.h>
+#include <hardware/bluetooth.h>
+#include "hardware/bt_rtkbt.h"
+#include "bt_target.h"
+#include "bt_trace.h"
+#include "btif_common.h"
+#include "rtkbt_api.h"
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <stdlib.h>
+
+
+/*
+    a sample of rtkbt_plugin_{id}.conf
+
+    A=123
+    B=4567 876
+    C=11:22:33:44:55:66
+
+    [GA]
+    A=111
+    B=4444 555
+    C=11:11:11:11:11:11
+    D=22:22:22:22:22:22
+
+    [GB]
+    A=333
+    B=777 999
+    C=66:66:66:66:66:66
+
+    [GC]
+    A=333
+    B=777 999
+    D=CCCCCCCC
+
+*/
+static char * contents[RTKBT_MAX_ID] = {0};
+struct config_entry
+{
+    struct config_entry * next;
+    char * group;
+    char * item;
+    char * val;
+} * configs[RTKBT_MAX_ID] = {0};
+/*
+    rtkbt_conf_getline - internal funciton
+    get a new line from head,return a pointer to the line header.
+    left while return  (pointer of end of new line +1)
+*/
+static char * rtkbt_conf_getline(char * head, char ** left)
+{
+    char * next;
+    if(*head == 0)
+        return NULL;
+    while((*head == '\r')||(*head == '\n'))
+        head++;
+    if(*head == 0)
+        return NULL;
+    next = head;
+    while((*next != '\r')&&(*next != '\n')&&(*next != 0))
+        next++;
+    if(*next != 0)
+        *next++ = 0;
+    *left = next;
+    return head;
+}
+/*
+    rtkbt_conf_parse_config - internal funciton
+    Parse config item from content and store all config item in items
+    return: id of plugin
+*/
+static int rtkbt_conf_parse_config(struct config_entry **items, char *content)
+{
+    char * group = NULL;
+    char * item = NULL;
+    char * val = NULL;
+    char * line = NULL;
+    int id = -1;
+    struct config_entry * entry, * head, *end;
+
+    char * p;
+
+    head = NULL;
+    end = NULL;
+
+    ALOGD("rtkbt_conf_parse_config\n");
+    while((line = rtkbt_conf_getline(content, &content)) != NULL)
+    {
+        ALOGD("rtkbt_conf_parse_config line:%s\n", line);
+        switch(line[0])
+        {
+            case '[':
+            {
+                p = strstr(line,"]");
+                if(p)
+                {
+                    *p = 0;
+                    group = &(line[1]);
+                    ALOGI("rtkbt_conf_parse_config Find Group[%s]\n", group);
+                }else{
+                    ALOGW("rtkbt_conf_parse_config Expected ']' end of Group(%s)!\n", line);
+                }
+                break;
+            }
+            case '{':
+            {
+                p = strstr(line,"}");
+                if(p)
+                {
+                    *p = 0;
+                    id = strtol((&(line[1])), NULL, 0);
+                    ALOGI("rtkbt_conf_parse_config Find PluginID[%d]\n", id);
+                }else{
+                    ALOGW("rtkbt_conf_parse_config Expected '}' end of PluginID(%s)!\n", line);
+                }
+                break;
+            }
+            case '#':
+            {
+                break;
+            }
+            default:
+            {
+                p = strstr(line,"=");
+                if(p)
+                {
+                    *p++ = 0;
+                    item = line;
+                    val = p;
+                    if((item[0]==0)||(val[0]==0))
+                    {
+                        ALOGI("rtkbt_conf_parse_config ignore(item:%s val:%s)\n", item[0]?item:"(null)", val[0]?val:"(null)");
+                        break;
+                    }
+                    ALOGI("rtkbt_conf_parse_config Find Item[%s:%s=%s]\n", group, item, val);
+                    entry = malloc(sizeof(struct config_entry));
+                    if(entry)
+                    {
+                        entry->next = NULL;
+                        entry->group = group;
+                        entry->item = item;
+                        entry->val = val;
+                        if(end)
+                        {
+                            end->next = entry;
+                            end = entry;
+                        }else
+                            end = entry;
+                        if(head == NULL)
+                            head = entry;
+                    }
+                }
+            }
+        }
+    }
+    *items = head;
+    return id;
+}
+#if 0
+int rtkbt_loadconfig()
+{
+    int i,res,fd;
+    struct stat st;
+    char path[1024];
+    memset(config, 0, sizeof(config));
+    memset(configs, 0, sizeof(configs));
+    for(i = 0;i < RTKBT_MAX_ID; i++)
+    {
+        memset(path, 0, sizeof(path));
+        sprintf(path, "%s/rtkbt_plugin_%d.conf", RTKBT_CONF_DIR, i);
+        ALOGI("load_plugin_configs(%s) load!\n", path);
+        fd = open(path, O_RDONLY);
+        if(fd < 0)
+        {
+            ALOGW("load_plugin_configs(%s) open fail!\n", path);
+            continue;
+        }
+        res = fstat(fd, &st);
+        if(res)
+        {
+            ALOGW("load_plugin_configs(%s) stat fail! reason=%d\n", path, res);
+            continue;
+        }
+        if(st.st_size <= 0)
+        {
+            ALOGW("load_plugin_configs(%s) size fail! size=%d\n", path, (int)st.st_size);
+            continue;
+        }
+        ALOGI("load_plugin_configs(%s) size=%d!\n", path, (int)st.st_size);
+        config[i] = malloc(st.st_size+1);
+        if(config[i] == NULL)
+        {
+            ALOGW("load_plugin_configs(%s) malloc fail!\n", path);
+            continue;
+        }
+        res = read(fd, config[i], st.st_size);
+        if(res <= 0)
+        {
+            ALOGW("load_plugin_configs(%s) read fail! res=%d\n", path, res);
+            continue;
+        }
+        config[i][res] = 0;
+        res = rtkbt_conf_parse_config(&configs[i], config[i]);
+        if(res <= 0)
+        {
+            ALOGW("load_plugin_configs(%s) rtkbt_conf_parse_config fail! res=%d\n", path, res);
+            continue;
+        }
+    }
+    return 0;
+}
+#else
+int rtkbt_loadconfig(char * path)
+{
+    int res,fd;
+    struct stat st;
+    char * content = NULL;
+    struct config_entry * config = NULL;
+
+    ALOGI("rtkbt_loadconfig(%s) load!\n", path);
+    fd = open(path, O_RDONLY);
+    if(fd < 0)
+    {
+        ALOGW("rtkbt_loadconfig(%s) open fail!\n", path);
+        return -1;
+    }
+    res = fstat(fd, &st);
+    if(res)
+    {
+        ALOGW("rtkbt_loadconfig(%s) stat fail! reason=%d\n", path, res);
+        return -1;
+    }
+    if(st.st_size <= 0)
+    {
+        ALOGW("rtkbt_loadconfig(%s) size fail! size=%d\n", path, (int)st.st_size);
+        return -1;
+    }
+    ALOGI("rtkbt_loadconfig(%s) size=%d!\n", path, (int)st.st_size);
+    content = malloc(st.st_size+1);
+    if(content == NULL)
+    {
+        ALOGW("rtkbt_loadconfig(%s) malloc fail!\n", path);
+        return -1;
+    }
+    res = read(fd, content, st.st_size);
+    if(res <= 0)
+    {
+        ALOGW("rtkbt_loadconfig(%s) read fail! res=%d\n", path, res);
+        return -1;
+    }
+    content[res] = 0;
+    res = rtkbt_conf_parse_config(&config, content);
+    if((res < 0)||(res >= RTKBT_MAX_ID))
+    {
+        ALOGW("rtkbt_loadconfig(%s) rtkbt_conf_parse_config fail! res=%d\n", path, res);
+        return -1;
+    }
+    configs[res] = config;
+    contents[res] = content;
+    return 0;
+}
+#endif
+int rtkbt_conf_init()
+{
+    memset(contents, 0, sizeof(contents));
+    memset(configs, 0, sizeof(configs));
+    return 0;
+}
+int rtkbt_conf_exit()
+{
+    struct config_entry *item, *p;
+    int i;
+
+    for(i = 0;i < RTKBT_MAX_ID; i++)
+    {
+        item = configs[i];
+        while(item)
+        {
+            p = item;
+            item = item->next;
+            free(p);
+        }
+        if(contents[i])
+            free(contents[i]);
+    }
+    return 0;
+}
+/*
+    rtkbt_api_GetConfig
+    used by plugin or bluedroid.
+    id: PluginID
+    group: config group
+    item: config item
+
+    return: config item val,it's a string.
+*/
+char * rtkbt_api_GetConfig(int id, char * group, char * item)
+{
+    struct config_entry * entry;
+
+    if(item == NULL)
+        return NULL;
+    entry = configs[id];
+    while(entry)
+    {
+        if(group&&(entry->group)&&(strcmp(entry->group, group)==0)&&(strcmp(entry->item, item)==0))
+            return entry->val;
+        if((group==NULL)&&(entry->group==NULL)&&(strcmp(entry->item, item)==0))
+            return entry->val;
+
+        entry = entry->next;
+    }
+    return NULL;
+}
+#endif
+
diff --git a/rtkbt/code/bt/service/Android.mk b/rtkbt/code/bt/service/Android.mk
new file mode 100755
index 0000000..507275e
--- /dev/null
+++ b/rtkbt/code/bt/service/Android.mk
@@ -0,0 +1,258 @@
+#
+#  Copyright (C) 2015 Google
+#
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at:
+#
+#  http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+#
+
+LOCAL_PATH:= $(call my-dir)
+
+#
+# Workaround for libchrome and -DNDEBUG usage.
+#
+# Test whether the original HOST_GLOBAL_CFLAGS and
+# TARGET_GLOBAL_CFLAGS contain -DNDEBUG .
+# This is needed as a workaround to make sure that
+# libchrome and local files calling logging::InitLogging()
+# are consistent with the usage of -DNDEBUG .
+# ========================================================
+ifneq (,$(findstring NDEBUG,$(HOST_GLOBAL_CFLAGS)))
+  btservice_orig_HOST_NDEBUG := -DBT_LIBCHROME_NDEBUG
+else
+  btservice_orig_HOST_NDEBUG :=
+endif
+ifneq (,$(findstring NDEBUG,$(TARGET_GLOBAL_CFLAGS)))
+  btservice_orig_TARGET_NDEBUG := -DBT_LIBCHROME_NDEBUG
+else
+  btservice_orig_TARGET_NDEBUG :=
+endif
+
+# Source variables
+# ========================================================
+btserviceCommonSrc := \
+	common/bluetooth/adapter_state.cpp \
+	common/bluetooth/advertise_data.cpp \
+	common/bluetooth/advertise_settings.cpp \
+	common/bluetooth/gatt_identifier.cpp \
+	common/bluetooth/scan_filter.cpp \
+	common/bluetooth/scan_result.cpp \
+	common/bluetooth/scan_settings.cpp \
+	common/bluetooth/util/address_helper.cpp \
+	common/bluetooth/util/atomic_string.cpp \
+	common/bluetooth/uuid.cpp
+
+btserviceCommonBinderSrc := \
+	common/bluetooth/binder/IBluetooth.cpp \
+	common/bluetooth/binder/IBluetoothCallback.cpp \
+	common/bluetooth/binder/IBluetoothGattClient.cpp \
+	common/bluetooth/binder/IBluetoothGattClientCallback.cpp \
+	common/bluetooth/binder/IBluetoothGattServer.cpp \
+	common/bluetooth/binder/IBluetoothGattServerCallback.cpp \
+	common/bluetooth/binder/IBluetoothLowEnergy.cpp \
+	common/bluetooth/binder/IBluetoothLowEnergyCallback.cpp \
+	common/bluetooth/binder/parcel_helpers.cpp
+
+btserviceDaemonSrc := \
+	adapter.cpp \
+	daemon.cpp \
+	gatt_client.cpp \
+	gatt_server.cpp \
+	gatt_server_old.cpp \
+	hal/gatt_helpers.cpp \
+	hal/bluetooth_gatt_interface.cpp \
+	hal/bluetooth_interface.cpp \
+	ipc/ipc_handler.cpp \
+	ipc/ipc_manager.cpp \
+	logging_helpers.cpp \
+	low_energy_client.cpp \
+	settings.cpp
+
+btserviceLinuxSrc := \
+	ipc/ipc_handler_linux.cpp \
+	ipc/linux_ipc_host.cpp
+
+btserviceBinderDaemonImplSrc := \
+	ipc/binder/bluetooth_binder_server.cpp \
+	ipc/binder/bluetooth_gatt_client_binder_server.cpp \
+	ipc/binder/bluetooth_gatt_server_binder_server.cpp \
+	ipc/binder/bluetooth_low_energy_binder_server.cpp \
+	ipc/binder/interface_with_instances_base.cpp \
+	ipc/binder/ipc_handler_binder.cpp \
+
+btserviceBinderDaemonSrc := \
+	$(btserviceCommonBinderSrc) \
+	$(btserviceBinderDaemonImplSrc)
+
+btserviceCommonIncludes := \
+	$(LOCAL_PATH)/../ \
+	$(LOCAL_PATH)/common
+
+# Main unit test sources. These get built for host and target.
+# ========================================================
+btserviceBaseTestSrc := \
+	hal/fake_bluetooth_gatt_interface.cpp \
+	hal/fake_bluetooth_interface.cpp \
+	test/adapter_unittest.cpp \
+	test/advertise_data_unittest.cpp \
+	test/fake_hal_util.cpp \
+	test/gatt_client_unittest.cpp \
+	test/gatt_identifier_unittest.cpp \
+	test/gatt_server_unittest.cpp \
+	test/low_energy_client_unittest.cpp \
+	test/settings_unittest.cpp \
+	test/util_unittest.cpp \
+	test/uuid_unittest.cpp
+
+# Native system service for target
+# ========================================================
+include $(CLEAR_VARS)
+LOCAL_SRC_FILES := \
+	$(btserviceBinderDaemonSrc) \
+	$(btserviceCommonSrc) \
+	$(btserviceLinuxSrc) \
+	$(btserviceDaemonSrc) \
+	main.cpp
+LOCAL_C_INCLUDES += $(btserviceCommonIncludes)
+LOCAL_MODULE_TAGS := optional
+LOCAL_MODULE := bluetoothtbd-rtk
+LOCAL_REQUIRED_MODULES = bluetooth-rtk.default
+LOCAL_STATIC_LIBRARIES += libbtcore-rtk
+LOCAL_SHARED_LIBRARIES += \
+	libbinder \
+	libchrome \
+	libcutils \
+	libhardware \
+	liblog \
+	libutils
+LOCAL_INIT_RC := bluetoothtbd.rc
+
+LOCAL_CFLAGS += $(bluetooth_CFLAGS) $(btservice_orig_TARGET_NDEBUG)
+LOCAL_CONLYFLAGS += $(bluetooth_CONLYFLAGS)
+LOCAL_CPPFLAGS += $(bluetooth_CPPFLAGS)
+
+include $(BUILD_EXECUTABLE)
+
+## Native system service unit tests for host
+## ========================================================
+#include $(CLEAR_VARS)
+#LOCAL_SRC_FILES := \
+#	$(btserviceBaseTestSrc) \
+#	$(btserviceCommonSrc) \
+#	$(btserviceDaemonSrc) \
+#	test/main.cpp \
+#	test/stub_ipc_handler_binder.cpp
+#ifeq ($(HOST_OS),linux)
+#LOCAL_SRC_FILES += \
+#	$(btserviceLinuxSrc) \
+#	test/ipc_linux_unittest.cpp
+#LOCAL_LDLIBS += -lrt
+#else
+#LOCAL_SRC_FILES += \
+#	test/stub_ipc_handler_linux.cpp
+#endif
+#LOCAL_C_INCLUDES += $(btserviceCommonIncludes)
+#LOCAL_MODULE_TAGS := debug tests
+#LOCAL_MODULE := bluetoothtbd-host_test
+#LOCAL_SHARED_LIBRARIES += libchrome
+#LOCAL_STATIC_LIBRARIES += libgmock_host libgtest_host liblog
+#
+#LOCAL_CFLAGS += $(bluetooth_CFLAGS) $(btservice_orig_HOST_NDEBUG)
+#LOCAL_CONLYFLAGS += $(bluetooth_CONLYFLAGS)
+#LOCAL_CPPFLAGS += $(bluetooth_CPPFLAGS)
+#
+#include $(BUILD_HOST_NATIVE_TEST)
+#
+## Native system service unit tests for target.
+## This includes Binder related tests that can only be run
+## on target.
+## ========================================================
+#include $(CLEAR_VARS)
+#LOCAL_SRC_FILES := \
+#	$(btserviceBaseTestSrc) \
+#	$(btserviceBinderDaemonSrc) \
+#	$(btserviceCommonSrc) \
+#	$(btserviceDaemonSrc) \
+#	test/main.cpp \
+#	test/parcel_helpers_unittest.cpp
+#LOCAL_C_INCLUDES += $(btserviceCommonIncludes)
+#LOCAL_MODULE_TAGS := debug tests
+#LOCAL_MODULE := bluetoothtbd_test
+#LOCAL_SHARED_LIBRARIES += \
+#	libbinder \
+#	libchrome \
+#	libutils
+#LOCAL_STATIC_LIBRARIES += libgmock libgtest liblog
+#
+#LOCAL_CFLAGS += $(bluetooth_CFLAGS) $(btservice_orig_TARGET_NDEBUG)
+#LOCAL_CONLYFLAGS += $(bluetooth_CONLYFLAGS)
+#LOCAL_CPPFLAGS += $(bluetooth_CPPFLAGS)
+#
+#include $(BUILD_NATIVE_TEST)
+
+# Client library for interacting with Bluetooth daemon
+# This is a static library for target.
+# ========================================================
+include $(CLEAR_VARS)
+LOCAL_SRC_FILES := \
+	$(btserviceCommonSrc) \
+	$(btserviceCommonBinderSrc)
+LOCAL_C_INCLUDES += $(btserviceCommonIncludes)
+LOCAL_EXPORT_C_INCLUDE_DIRS := $(LOCAL_PATH)/common
+LOCAL_MODULE := libbluetooth-client-rtk
+LOCAL_SHARED_LIBRARIES += libbinder libchrome libutils
+
+LOCAL_CFLAGS += $(bluetooth_CFLAGS) $(btservice_orig_TARGET_NDEBUG)
+LOCAL_CONLYFLAGS += $(bluetooth_CONLYFLAGS)
+LOCAL_CPPFLAGS += $(bluetooth_CPPFLAGS)
+
+include $(BUILD_STATIC_LIBRARY)
+
+# Native system service CLI for target
+# ========================================================
+include $(CLEAR_VARS)
+LOCAL_SRC_FILES := client/main.cpp
+LOCAL_MODULE_TAGS := optional
+LOCAL_MODULE := bluetooth-cli-rtk
+LOCAL_STATIC_LIBRARIES += libbluetooth-client-rtk
+LOCAL_SHARED_LIBRARIES += \
+	libbinder \
+	libchrome \
+	libutils
+
+LOCAL_CFLAGS += $(bluetooth_CFLAGS) $(btservice_orig_TARGET_NDEBUG)
+LOCAL_CONLYFLAGS += $(bluetooth_CONLYFLAGS)
+LOCAL_CPPFLAGS += $(bluetooth_CPPFLAGS)
+
+include $(BUILD_EXECUTABLE)
+
+# Heart Rate GATT service example for target
+# ========================================================
+# TODO(armansito): Move this into a new makefile under examples/ once we build
+# a client static library that the examples can depend on.
+include $(CLEAR_VARS)
+LOCAL_SRC_FILES := \
+	example/heart_rate/heart_rate_server.cpp \
+	example/heart_rate/server_main.cpp
+LOCAL_C_INCLUDES += $(LOCAL_PATH)/../
+LOCAL_MODULE_TAGS := optional
+LOCAL_MODULE := bt-example-hr-server-rtk
+LOCAL_STATIC_LIBRARIES += libbluetooth-client-rtk
+LOCAL_SHARED_LIBRARIES += \
+	libbinder \
+	libchrome \
+	libutils
+
+LOCAL_CFLAGS += $(bluetooth_CFLAGS) $(btservice_orig_TARGET_NDEBUG)
+LOCAL_CONLYFLAGS += $(bluetooth_CONLYFLAGS)
+LOCAL_CPPFLAGS += $(bluetooth_CPPFLAGS)
+
+include $(BUILD_EXECUTABLE)
diff --git a/rtkbt/code/bt/service/BUILD.gn b/rtkbt/code/bt/service/BUILD.gn
new file mode 100755
index 0000000..51e58f2
--- /dev/null
+++ b/rtkbt/code/bt/service/BUILD.gn
@@ -0,0 +1,98 @@
+#
+#  Copyright (C) 2015 Google
+#
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at:
+#
+#  http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+#
+
+source_set("service") {
+  sources = [
+    "adapter.cpp",
+    "daemon.cpp",
+    "gatt_client.cpp",
+    "gatt_server.cpp",
+    "gatt_server_old.cpp",
+    "logging_helpers.cpp",
+    "low_energy_client.cpp",
+    "settings.cpp",
+    "common/bluetooth/advertise_data.cpp",
+    "common/bluetooth/adapter_state.cpp",
+    "common/bluetooth/uuid.cpp",
+    "common/bluetooth/scan_filter.cpp",
+    "common/bluetooth/scan_result.cpp",
+    "common/bluetooth/scan_settings.cpp",
+    "common/bluetooth/gatt_identifier.cpp",
+    "common/bluetooth/advertise_settings.cpp",
+    "common/bluetooth/util/atomic_string.cpp",
+    "common/bluetooth/util/address_helper.cpp",
+    "hal/bluetooth_interface.cpp",
+    "hal/bluetooth_gatt_interface.cpp",
+    "hal/fake_bluetooth_gatt_interface.cpp",
+    "hal/fake_bluetooth_interface.cpp",
+    "hal/gatt_helpers.cpp",
+    "ipc/ipc_handler.cpp",
+    "ipc/linux_ipc_host.cpp",
+    "ipc/ipc_manager.cpp",
+    "ipc/ipc_handler_linux.cpp",
+  ]
+
+  include_dirs = [
+    "//",
+    "//service/common",
+    "//third_party/modp_b64/modp64",
+    libhw_include_path,
+  ]
+
+  deps = [
+    "//third_party/libchrome:base"
+  ]
+}
+
+executable("bluetoothtbd") {
+  sources = [
+    "main.cpp",
+  ]
+
+  deps = [
+    ":service",
+    "//btcore",
+    "//third_party/libchrome:base",
+    "//third_party/modp_b64",
+  ]
+
+  include_dirs = [ "//" ]
+
+  libs = [
+    "-ldl",
+    "-lpthread",
+    "-lrt",
+  ]
+}
+
+executable("service_unittests") {
+  testonly = true
+  sources = [
+    "test/fake_hal_util.cpp",
+    "test/ipc_linux_unittest.cpp",
+    "test/settings_unittest.cpp",
+    "test/uuid_unittest.cpp",
+  ]
+
+  include_dirs = [ "//" ]
+
+  deps = [
+    ":service",
+    "//third_party/googletest:gmock_main",
+    "//third_party/libchrome:base",
+    "//third_party/modp_b64",
+  ]
+}
diff --git a/rtkbt/code/bt/service/adapter.cpp b/rtkbt/code/bt/service/adapter.cpp
new file mode 100755
index 0000000..45826b2
--- /dev/null
+++ b/rtkbt/code/bt/service/adapter.cpp
@@ -0,0 +1,403 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#include "service/adapter.h"
+
+#include <atomic>
+#include <mutex>
+#include <string>
+#include <unordered_set>
+
+#include <base/logging.h>
+#include <base/observer_list.h>
+
+#include "service/common/bluetooth/util/atomic_string.h"
+#include "service/gatt_client.h"
+#include "service/gatt_server.h"
+#include "service/hal/bluetooth_interface.h"
+#include "service/logging_helpers.h"
+#include "service/low_energy_client.h"
+
+using std::lock_guard;
+using std::mutex;
+
+namespace bluetooth {
+
+// static
+const char Adapter::kDefaultAddress[] = "00:00:00:00:00:00";
+// static
+const char Adapter::kDefaultName[] = "not-initialized";
+
+// TODO(armansito): The following constants come straight from
+// packages/apps/Bluetooth/src/c/a/b/btservice/AdapterService.java. It would be
+// nice to know if there were a way to obtain these values from the stack
+// instead of hardcoding them here.
+
+// The minimum number of advertising instances required for multi-advertisement
+// support.
+const int kMinAdvInstancesForMultiAdv = 5;
+
+// Used when determining if offloaded scan filtering is supported.
+const int kMinOffloadedFilters = 10;
+
+// Used when determining if offloaded scan batching is supported.
+const int kMinOffloadedScanStorageBytes = 1024;
+
+void Adapter::Observer::OnAdapterStateChanged(Adapter* adapter,
+                                              AdapterState prev_state,
+                                              AdapterState new_state) {
+  // Default implementation does nothing
+}
+
+void Adapter::Observer::OnDeviceConnectionStateChanged(
+    Adapter* adapter, const std::string& device_address, bool connected) {
+  // Default implementation does nothing
+}
+
+// The real Adapter implementation used in production.
+class AdapterImpl : public Adapter,
+                    public hal::BluetoothInterface::Observer {
+ public:
+  AdapterImpl()
+    : state_(ADAPTER_STATE_OFF),
+      address_(kDefaultAddress),
+      name_(kDefaultName) {
+    memset(&local_le_features_, 0, sizeof(local_le_features_));
+    hal::BluetoothInterface::Get()->AddObserver(this);
+    ble_client_factory_.reset(new LowEnergyClientFactory(*this));
+    gatt_client_factory_.reset(new GattClientFactory());
+    gatt_server_factory_.reset(new GattServerFactory());
+    hal::BluetoothInterface::Get()->GetHALInterface()->get_adapter_properties();
+  }
+
+  ~AdapterImpl() override {
+    hal::BluetoothInterface::Get()->RemoveObserver(this);
+  }
+
+  void AddObserver(Adapter::Observer* observer) override {
+    lock_guard<mutex> lock(observers_lock_);
+    observers_.AddObserver(observer);
+  }
+
+  void RemoveObserver(Adapter::Observer* observer) override {
+    lock_guard<mutex> lock(observers_lock_);
+    observers_.RemoveObserver(observer);
+  }
+
+  AdapterState GetState() const override {
+    return state_.load();
+  }
+
+  bool IsEnabled() const override {
+    return state_.load() == ADAPTER_STATE_ON;
+  }
+
+  bool Enable(bool start_restricted) override {
+    AdapterState current_state = GetState();
+    if (current_state != ADAPTER_STATE_OFF) {
+      LOG(INFO) << "Adapter not disabled - state: "
+                << AdapterStateToString(current_state);
+      return false;
+    }
+
+    // Set the state before calling enable() as there might be a race between
+    // here and the AdapterStateChangedCallback.
+    state_ = ADAPTER_STATE_TURNING_ON;
+    NotifyAdapterStateChanged(current_state, state_);
+
+    int status = hal::BluetoothInterface::Get()->GetHALInterface()->enable(start_restricted);
+    if (status != BT_STATUS_SUCCESS) {
+      LOG(ERROR) << "Failed to enable Bluetooth - status: "
+                 << BtStatusText((const bt_status_t)status);
+      state_ = ADAPTER_STATE_OFF;
+      NotifyAdapterStateChanged(ADAPTER_STATE_TURNING_ON, state_);
+      return false;
+    }
+
+    return true;
+  }
+
+  bool Disable() override {
+    if (!IsEnabled()) {
+      LOG(INFO) << "Adapter is not enabled";
+      return false;
+    }
+
+    AdapterState current_state = GetState();
+
+    // Set the state before calling enable() as there might be a race between
+    // here and the AdapterStateChangedCallback.
+    state_ = ADAPTER_STATE_TURNING_OFF;
+    NotifyAdapterStateChanged(current_state, state_);
+
+    int status = hal::BluetoothInterface::Get()->GetHALInterface()->disable();
+    if (status != BT_STATUS_SUCCESS) {
+      LOG(ERROR) << "Failed to disable Bluetooth - status: "
+                 << BtStatusText((const bt_status_t)status);
+      state_ = current_state;
+      NotifyAdapterStateChanged(ADAPTER_STATE_TURNING_OFF, state_);
+      return false;
+    }
+
+    return true;
+  }
+
+  std::string GetName() const override {
+    return name_.Get();
+  }
+
+  bool SetName(const std::string& name) override {
+    bt_bdname_t hal_name;
+    size_t max_name_len = sizeof(hal_name.name);
+
+    // Include the \0 byte in size measurement.
+    if (name.length() >= max_name_len) {
+      LOG(ERROR) << "Given name \"" << name << "\" is larger than maximum"
+                 << " allowed size: " << max_name_len;
+      return false;
+    }
+
+    strncpy(reinterpret_cast<char*>(hal_name.name), name.c_str(),
+            name.length() + 1);
+
+    VLOG(1) << "Setting adapter name: " << name;
+
+    if (!SetAdapterProperty(BT_PROPERTY_BDNAME, &hal_name, sizeof(hal_name))) {
+      LOG(ERROR) << "Failed to set adapter name: " << name;
+      return false;
+    }
+
+    return true;
+  }
+
+  std::string GetAddress() const override {
+    return address_.Get();
+  }
+
+  bool IsMultiAdvertisementSupported() override {
+    lock_guard<mutex> lock(local_le_features_lock_);
+    return local_le_features_.max_adv_instance >= kMinAdvInstancesForMultiAdv;
+  }
+
+  bool IsDeviceConnected(const std::string& device_address) override {
+    lock_guard<mutex> lock(connected_devices_lock_);
+    return connected_devices_.find(device_address) != connected_devices_.end();
+  }
+
+  int GetTotalNumberOfTrackableAdvertisements() override {
+    lock_guard<mutex> lock(local_le_features_lock_);
+    return local_le_features_.total_trackable_advertisers;
+  }
+
+  bool IsOffloadedFilteringSupported() override {
+    lock_guard<mutex> lock(local_le_features_lock_);
+    return local_le_features_.max_adv_filter_supported >= kMinOffloadedFilters;
+  }
+
+  bool IsOffloadedScanBatchingSupported() override {
+    lock_guard<mutex> lock(local_le_features_lock_);
+    return local_le_features_.scan_result_storage_size >=
+        kMinOffloadedScanStorageBytes;
+  }
+
+  LowEnergyClientFactory* GetLowEnergyClientFactory() const override {
+    return ble_client_factory_.get();
+  }
+
+  GattClientFactory* GetGattClientFactory() const override {
+    return gatt_client_factory_.get();
+  }
+
+  GattServerFactory* GetGattServerFactory() const override {
+    return gatt_server_factory_.get();
+  }
+
+  // hal::BluetoothInterface::Observer overrides.
+  void AdapterStateChangedCallback(bt_state_t state) override {
+    LOG(INFO) << "Adapter state changed: " << BtStateText(state);
+
+    AdapterState prev_state = GetState();
+
+    switch (state) {
+    case BT_STATE_OFF:
+      state_ = ADAPTER_STATE_OFF;
+      break;
+
+    case BT_STATE_ON:
+      state_ = ADAPTER_STATE_ON;
+      break;
+
+    default:
+      NOTREACHED();
+    }
+
+    NotifyAdapterStateChanged(prev_state, GetState());
+  }
+
+  void AdapterPropertiesCallback(bt_status_t status,
+                                 int num_properties,
+                                 bt_property_t* properties) override {
+    LOG(INFO) << "Adapter properties changed";
+
+    if (status != BT_STATUS_SUCCESS) {
+      LOG(ERROR) << "status: " << BtStatusText(status);
+      return;
+    }
+
+    for (int i = 0; i < num_properties; i++) {
+      bt_property_t* property = properties + i;
+      switch (property->type) {
+        case BT_PROPERTY_BDADDR: {
+          std::string address = BtAddrString(reinterpret_cast<bt_bdaddr_t*>(
+              property->val));
+          LOG(INFO) << "Adapter address changed: " << address;
+          address_.Set(address);
+          break;
+        }
+        case BT_PROPERTY_BDNAME: {
+          bt_bdname_t* hal_name = reinterpret_cast<bt_bdname_t*>(property->val);
+          std::string name = reinterpret_cast<char*>(hal_name->name);
+          LOG(INFO) << "Adapter name changed: " << name;
+          name_.Set(name);
+          break;
+        }
+        case BT_PROPERTY_LOCAL_LE_FEATURES: {
+          lock_guard<mutex> lock(local_le_features_lock_);
+          if (property->len != sizeof(bt_local_le_features_t)) {
+            LOG(WARNING) << "Malformed value received for property: "
+                         << "BT_PROPERTY_LOCAL_LE_FEATURES";
+            break;
+          }
+          bt_local_le_features_t* features =
+              reinterpret_cast<bt_local_le_features_t*>(property->val);
+          memcpy(&local_le_features_, features, sizeof(*features));
+          LOG(INFO) << "Supported LE features updated";
+          break;
+        }
+        default:
+          VLOG(1) << "Unhandled adapter property: "
+                  << BtPropertyText(property->type);
+          break;
+      }
+
+      // TODO(armansito): notify others of the updated properties
+    }
+  }
+
+  void AclStateChangedCallback(bt_status_t status,
+                               const bt_bdaddr_t& remote_bdaddr,
+                               bt_acl_state_t state) override {
+    std::string device_address = BtAddrString(&remote_bdaddr);
+    bool connected = (state == BT_ACL_STATE_CONNECTED);
+    LOG(INFO) << "ACL state changed: " << device_address << " - connected: "
+              << (connected ? "true" : "false");
+
+    // If this is reported with an error status, I suppose the best thing we can
+    // do is to log it and ignore the event.
+    if (status != BT_STATUS_SUCCESS) {
+      LOG(ERROR) << "status: " << BtStatusText(status);
+      return;
+    }
+
+    // Introduce a scope to manage |connected_devices_lock_| with RAII.
+    {
+      lock_guard<mutex> lock(connected_devices_lock_);
+      if (connected)
+        connected_devices_.insert(device_address);
+      else
+        connected_devices_.erase(device_address);
+    }
+
+    lock_guard<mutex> lock(observers_lock_);
+    FOR_EACH_OBSERVER(
+        Adapter::Observer, observers_,
+        OnDeviceConnectionStateChanged(this, device_address, connected));
+  }
+
+  // Sends a request to set the given HAL adapter property type and value.
+  bool SetAdapterProperty(bt_property_type_t type, void* value, int length) {
+    CHECK(length > 0);
+    CHECK(value);
+
+    bt_property_t property;
+    property.len = length;
+    property.val = value;
+    property.type = type;
+
+    int status = hal::BluetoothInterface::Get()->GetHALInterface()->
+        set_adapter_property(&property);
+    if (status != BT_STATUS_SUCCESS) {
+      VLOG(1) << "Failed to set property";
+      return false;
+    }
+
+    return true;
+  }
+
+  // Helper for invoking the AdapterStateChanged observer method.
+  void NotifyAdapterStateChanged(AdapterState prev_state,
+                                 AdapterState new_state) {
+    if (prev_state == new_state)
+      return;
+
+    lock_guard<mutex> lock(observers_lock_);
+    FOR_EACH_OBSERVER(Adapter::Observer, observers_,
+                      OnAdapterStateChanged(this, prev_state, new_state));
+  }
+
+ private:
+  // The current adapter state.
+  std::atomic<AdapterState> state_;
+
+  // The Bluetooth device address of the local adapter in string from
+  // (i.e.. XX:XX:XX:XX:XX:XX)
+  util::AtomicString address_;
+
+  // The current local adapter name.
+  util::AtomicString name_;
+
+  // The current set of supported LE features as obtained from the stack. The
+  // values here are all initially set to 0 and updated when the corresponding
+  // adapter property has been received from the stack.
+  std::mutex local_le_features_lock_;
+  bt_local_le_features_t local_le_features_;
+
+  // List of observers that are interested in notifications from us.
+  std::mutex observers_lock_;
+  base::ObserverList<Adapter::Observer> observers_;
+
+  // List of devices addresses that are currently connected.
+  std::mutex connected_devices_lock_;
+  std::unordered_set<std::string> connected_devices_;
+
+  // Factory used to create per-app LowEnergyClient instances.
+  std::unique_ptr<LowEnergyClientFactory> ble_client_factory_;
+
+  // Factory used to create per-app GattClient instances.
+  std::unique_ptr<GattClientFactory> gatt_client_factory_;
+
+  // Factory used to create per-app GattServer instances.
+  std::unique_ptr<GattServerFactory> gatt_server_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(AdapterImpl);
+};
+
+// static
+std::unique_ptr<Adapter> Adapter::Create() {
+  return std::unique_ptr<Adapter>(new AdapterImpl());
+}
+
+}  // namespace bluetooth
diff --git a/rtkbt/code/bt/service/adapter.h b/rtkbt/code/bt/service/adapter.h
new file mode 100755
index 0000000..11226ce
--- /dev/null
+++ b/rtkbt/code/bt/service/adapter.h
@@ -0,0 +1,143 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#pragma once
+
+#include <memory>
+
+#include <base/macros.h>
+
+#include "service/common/bluetooth/adapter_state.h"
+
+namespace bluetooth {
+
+class GattClientFactory;
+class GattServerFactory;
+class LowEnergyClientFactory;
+
+// Represents the local Bluetooth adapter.
+class Adapter {
+ public:
+  // The default values returned before the Adapter is fully initialized and
+  // powered. The complete values for these fields are obtained following a
+  // successful call to "Enable".
+  static const char kDefaultAddress[];
+  static const char kDefaultName[];
+
+  // Observer interface allows other classes to receive notifications from us.
+  // All of the methods in this interface are declared as optional to allow
+  // different layers to process only those events that they are interested in.
+  //
+  // All methods take in an |adapter| argument which points to the Adapter
+  // object that the Observer instance was added to.
+  class Observer {
+   public:
+    virtual ~Observer() = default;
+
+    // Called when there is a change in the state of the local Bluetooth
+    // |adapter| from |prev_state| to |new_state|.
+    virtual void OnAdapterStateChanged(Adapter* adapter,
+                                       AdapterState prev_state,
+                                       AdapterState new_state);
+
+    // Called when there is a change in the connection state between the local
+    // |adapter| and a remote device with address |device_address|. If the ACL
+    // state changes from disconnected to connected, then |connected| will be
+    // true and vice versa.
+    virtual void OnDeviceConnectionStateChanged(
+        Adapter* adapter, const std::string& device_address, bool connected);
+  };
+
+  // Returns an Adapter implementation to be used in production. Don't use these
+  // in tests; use MockAdapter instead.
+  static std::unique_ptr<Adapter> Create();
+
+  virtual ~Adapter() = default;
+
+  // Add or remove an observer.
+  virtual void AddObserver(Observer* observer) = 0;
+  virtual void RemoveObserver(Observer* observer) = 0;
+
+  // Returns the current Adapter state.
+  virtual AdapterState GetState() const = 0;
+
+  // Returns true, if the adapter radio is current powered.
+  virtual bool IsEnabled() const = 0;
+
+  // Enables Bluetooth. This method will send a request to the Bluetooth adapter
+  // to power up its radio. Returns true, if the request was successfully sent
+  // to the controller, otherwise returns false. A successful call to this
+  // method only means that the enable request has been sent to the Bluetooth
+  // controller and does not imply that the operation itself succeeded.
+  // The |start_restricted| flag enables the adapter in restricted mode. In
+  // restricted mode, bonds that are created are marked as restricted in the
+  // config file. These devices are deleted upon leaving restricted mode.
+  virtual bool Enable(bool start_restricted) = 0;
+
+  // Powers off the Bluetooth radio. Returns true, if the disable request was
+  // successfully sent to the Bluetooth controller.
+  virtual bool Disable() = 0;
+
+  // Returns the name currently assigned to the local adapter.
+  virtual std::string GetName() const = 0;
+
+  // Sets the name assigned to the local Bluetooth adapter. This is the name
+  // that the local controller will present to remote devices.
+  virtual bool SetName(const std::string& name) = 0;
+
+  // Returns the local adapter addess in string form (XX:XX:XX:XX:XX:XX).
+  virtual std::string GetAddress() const = 0;
+
+  // Returns true if the local adapter supports the Low-Energy
+  // multi-advertisement feature.
+  virtual bool IsMultiAdvertisementSupported() = 0;
+
+  // Returns true if the remote device with address |device_address| is
+  // currently connected. This is not a const method as it modifies the state of
+  // the associated internal mutex.
+  virtual bool IsDeviceConnected(const std::string& device_address) = 0;
+
+  // Returns the total number of trackable advertisements as supported by the
+  // underlying hardware.
+  virtual int GetTotalNumberOfTrackableAdvertisements() = 0;
+
+  // Returns true if hardware-backed scan filtering is supported.
+  virtual bool IsOffloadedFilteringSupported() = 0;
+
+  // Returns true if hardware-backed batch scanning is supported.
+  virtual bool IsOffloadedScanBatchingSupported() = 0;
+
+  // Returns a pointer to the LowEnergyClientFactory. This can be used to
+  // register per-application LowEnergyClient instances to perform BLE GAP
+  // operations.
+  virtual LowEnergyClientFactory* GetLowEnergyClientFactory() const = 0;
+
+  // Returns a pointer to the GattClientFactory. This can be used to register
+  // per-application GATT server instances.
+  virtual GattClientFactory* GetGattClientFactory() const = 0;
+
+  // Returns a pointer to the GattServerFactory. This can be used to register
+  // per-application GATT server instances.
+  virtual GattServerFactory* GetGattServerFactory() const = 0;
+
+ protected:
+  Adapter() = default;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(Adapter);
+};
+
+}  // namespace bluetooth
diff --git a/rtkbt/code/bt/service/bluetooth_instance.h b/rtkbt/code/bt/service/bluetooth_instance.h
new file mode 100755
index 0000000..c2e06f3
--- /dev/null
+++ b/rtkbt/code/bt/service/bluetooth_instance.h
@@ -0,0 +1,75 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#pragma once
+
+#include <functional>
+#include <memory>
+
+#include <base/macros.h>
+
+#include "service/common/bluetooth/low_energy_constants.h"
+#include "service/common/bluetooth/uuid.h"
+
+namespace bluetooth {
+
+// A BluetoothInstance represents an application's handle to an instance
+// that is registered with the underlying Bluetooth stack using a UUID and has a
+// stack-assigned integer "instance_id" ID associated with it.
+class BluetoothInstance {
+ public:
+  virtual ~BluetoothInstance() = default;
+
+  // Returns the app-specific unique ID used while registering this instance.
+  virtual const UUID& GetAppIdentifier() const = 0;
+
+  // Returns the HAL "interface ID" assigned to this instance by the stack.
+  virtual int GetInstanceId() const = 0;
+
+ protected:
+  // Constructor shouldn't be called directly as instances are meant to be
+  // obtained from the factory.
+  BluetoothInstance() = default;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(BluetoothInstance);
+};
+
+// A BluetoothInstanceFactory provides a common interface for factory
+// classes that handle asynchronously registering a per-application instance of
+// a BluetoothInstance with the underlying stack.
+class BluetoothInstanceFactory {
+ public:
+  BluetoothInstanceFactory() = default;
+  virtual ~BluetoothInstanceFactory() = default;
+
+  // Callback invoked as a result of a call to RegisterInstance.
+  using RegisterCallback = std::function<void(
+      BLEStatus status, const UUID& app_uuid,
+      std::unique_ptr<BluetoothInstance> instance)>;
+
+  // Registers an instance for the given unique identifier |app_uuid|.
+  // On success, this asynchronously invokes |callback| with a unique pointer
+  // to a BluetoothInstance whose ownership can be taken by the caller. In
+  // the case of an error, the pointer will contain nullptr.
+  virtual bool RegisterInstance(const UUID& app_uuid,
+                                const RegisterCallback& callback) = 0;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(BluetoothInstanceFactory);
+};
+
+}  // namespace bluetooth
diff --git a/rtkbt/code/bt/service/bluetoothtbd.rc b/rtkbt/code/bt/service/bluetoothtbd.rc
new file mode 100755
index 0000000..9e252a9
--- /dev/null
+++ b/rtkbt/code/bt/service/bluetoothtbd.rc
@@ -0,0 +1,4 @@
+service bluetoothtbd /system/bin/bluetoothtbd
+    class main
+    user bluetooth
+    group wakelock net_bt_admin net_bt_stack net_admin
diff --git a/rtkbt/code/bt/service/client/main.cpp b/rtkbt/code/bt/service/client/main.cpp
new file mode 100755
index 0000000..87fdaf5
--- /dev/null
+++ b/rtkbt/code/bt/service/client/main.cpp
@@ -0,0 +1,886 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#include <iostream>
+#include <string>
+
+#ifdef BT_LIBCHROME_NDEBUG
+#define NDEBUG 1
+#endif
+
+#include <base/at_exit.h>
+#include <base/command_line.h>
+#include <base/logging.h>
+#include <base/macros.h>
+#include <base/strings/string_number_conversions.h>
+#include <base/strings/string_split.h>
+#include <base/strings/string_util.h>
+#include <binder/IPCThreadState.h>
+#include <binder/ProcessState.h>
+
+#include <bluetooth/adapter_state.h>
+#include <bluetooth/binder/IBluetooth.h>
+#include <bluetooth/binder/IBluetoothCallback.h>
+#include <bluetooth/binder/IBluetoothGattClient.h>
+#include <bluetooth/binder/IBluetoothGattClientCallback.h>
+#include <bluetooth/binder/IBluetoothLowEnergy.h>
+#include <bluetooth/binder/IBluetoothLowEnergyCallback.h>
+#include <bluetooth/low_energy_constants.h>
+#include <bluetooth/scan_filter.h>
+#include <bluetooth/scan_settings.h>
+#include <bluetooth/uuid.h>
+
+using namespace std;
+
+using android::sp;
+
+using ipc::binder::IBluetooth;
+using ipc::binder::IBluetoothGattClient;
+using ipc::binder::IBluetoothLowEnergy;
+
+namespace {
+
+#define COLOR_OFF         "\x1B[0m"
+#define COLOR_RED         "\x1B[0;91m"
+#define COLOR_GREEN       "\x1B[0;92m"
+#define COLOR_YELLOW      "\x1B[0;93m"
+#define COLOR_BLUE        "\x1B[0;94m"
+#define COLOR_MAGENTA     "\x1B[0;95m"
+#define COLOR_BOLDGRAY    "\x1B[1;30m"
+#define COLOR_BOLDWHITE   "\x1B[1;37m"
+#define COLOR_BOLDYELLOW  "\x1B[1;93m"
+#define CLEAR_LINE        "\x1B[2K"
+
+#define CHECK_ARGS_COUNT(args, op, num, msg) \
+  if (!(args.size() op num)) { \
+    PrintError(msg); \
+    return; \
+  }
+#define CHECK_NO_ARGS(args) \
+  CHECK_ARGS_COUNT(args, ==, 0, "Expected no arguments")
+
+// TODO(armansito): Clean up this code. Right now everything is in this
+// monolithic file. We should organize this into different classes for command
+// handling, console output/printing, callback handling, etc.
+// (See http://b/23387611)
+
+// Used to synchronize the printing of the command-line prompt and incoming
+// Binder callbacks.
+std::atomic_bool showing_prompt(false);
+
+// The registered IBluetoothLowEnergy client handle. If |ble_registering| is
+// true then an operation to register the client is in progress.
+std::atomic_bool ble_registering(false);
+std::atomic_int ble_client_id(0);
+
+// The registered IBluetoothGattClient client handle. If |gatt_registering| is
+// true then an operation to register the client is in progress.
+std::atomic_bool gatt_registering(false);
+std::atomic_int gatt_client_id(0);
+
+// True if we should dump the scan record bytes for incoming scan results.
+std::atomic_bool dump_scan_record(false);
+
+// True if the remote process has died and we should exit.
+std::atomic_bool should_exit(false);
+
+void PrintPrompt() {
+  cout << COLOR_BLUE "[FCLI] " COLOR_OFF << flush;
+}
+
+void PrintError(const string& message) {
+  cout << COLOR_RED << message << COLOR_OFF << endl;
+}
+
+void PrintOpStatus(const std::string& op, bool status) {
+  cout << COLOR_BOLDWHITE << op << " status: " COLOR_OFF
+       << (status ? (COLOR_GREEN "success") : (COLOR_RED "failure"))
+       << COLOR_OFF << endl;
+}
+
+inline void BeginAsyncOut() {
+  if (showing_prompt.load())
+    cout << CLEAR_LINE << "\r";
+}
+
+inline void EndAsyncOut() {
+  std::flush(cout);
+  if (showing_prompt.load())
+      PrintPrompt();
+  else
+    cout << endl;
+}
+
+class CLIBluetoothCallback : public ipc::binder::BnBluetoothCallback {
+ public:
+  CLIBluetoothCallback() = default;
+  ~CLIBluetoothCallback() override = default;
+
+  // IBluetoothCallback overrides:
+  void OnBluetoothStateChange(
+      bluetooth::AdapterState prev_state,
+      bluetooth::AdapterState new_state) override {
+
+    BeginAsyncOut();
+    cout << COLOR_BOLDWHITE "Adapter state changed: " COLOR_OFF
+         << COLOR_MAGENTA << AdapterStateToString(prev_state) << COLOR_OFF
+         << COLOR_BOLDWHITE " -> " COLOR_OFF
+         << COLOR_BOLDYELLOW << AdapterStateToString(new_state) << COLOR_OFF;
+    EndAsyncOut();
+   }
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(CLIBluetoothCallback);
+};
+
+class CLIBluetoothLowEnergyCallback
+    : public ipc::binder::BnBluetoothLowEnergyCallback {
+ public:
+  CLIBluetoothLowEnergyCallback() = default;
+  ~CLIBluetoothLowEnergyCallback() override = default;
+
+  // IBluetoothLowEnergyCallback overrides:
+  void OnClientRegistered(int status, int client_id) override {
+    BeginAsyncOut();
+    if (status != bluetooth::BLE_STATUS_SUCCESS) {
+      PrintError("Failed to register BLE client");
+    } else {
+      ble_client_id = client_id;
+      cout << COLOR_BOLDWHITE "Registered BLE client with ID: " COLOR_OFF
+           << COLOR_GREEN << client_id << COLOR_OFF;
+    }
+    EndAsyncOut();
+
+    ble_registering = false;
+  }
+
+  void OnConnectionState(int status, int client_id, const char* address,
+                         bool connected) override {
+    BeginAsyncOut();
+    cout << COLOR_BOLDWHITE "Connection state: "
+         << COLOR_BOLDYELLOW "[" << address
+         << " connected: " << (connected ? "true" : "false") << " ] "
+         << COLOR_BOLDWHITE "- status: " << status
+         << COLOR_BOLDWHITE " - client_id: " << client_id << COLOR_OFF;
+    EndAsyncOut();
+  }
+
+  void OnMtuChanged(int status, const char *address, int mtu) override {
+    BeginAsyncOut();
+    cout << COLOR_BOLDWHITE "MTU changed: "
+         << COLOR_BOLDYELLOW "[" << address << " ] "
+         << COLOR_BOLDWHITE " - status: " << status
+         << COLOR_BOLDWHITE " - mtu: " << mtu << COLOR_OFF;
+    EndAsyncOut();
+  }
+
+  void OnScanResult(const bluetooth::ScanResult& scan_result) override {
+    BeginAsyncOut();
+    cout << COLOR_BOLDWHITE "Scan result: "
+         << COLOR_BOLDYELLOW "[" << scan_result.device_address() << "] "
+         << COLOR_BOLDWHITE "- RSSI: " << scan_result.rssi() << COLOR_OFF;
+
+    if (dump_scan_record) {
+      cout << " - Record: "
+           << base::HexEncode(scan_result.scan_record().data(),
+                              scan_result.scan_record().size());
+    }
+    EndAsyncOut();
+  }
+
+  void OnMultiAdvertiseCallback(
+      int status, bool is_start,
+      const bluetooth::AdvertiseSettings& /* settings */) {
+    BeginAsyncOut();
+    std::string op = is_start ? "start" : "stop";
+
+    PrintOpStatus("Advertising " + op, status == bluetooth::BLE_STATUS_SUCCESS);
+    EndAsyncOut();
+  }
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(CLIBluetoothLowEnergyCallback);
+};
+
+class CLIGattClientCallback
+    : public ipc::binder::BnBluetoothGattClientCallback {
+ public:
+  CLIGattClientCallback() = default;
+  ~CLIGattClientCallback() override = default;
+
+  // IBluetoothGattClientCallback overrides:
+  void OnClientRegistered(int status, int client_id) override {
+    BeginAsyncOut();
+    if (status != bluetooth::BLE_STATUS_SUCCESS) {
+      PrintError("Failed to register GATT client");
+    } else {
+      gatt_client_id = client_id;
+      cout << COLOR_BOLDWHITE "Registered GATT client with ID: " COLOR_OFF
+           << COLOR_GREEN << client_id << COLOR_OFF;
+    }
+    EndAsyncOut();
+
+    gatt_registering = false;
+  }
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(CLIGattClientCallback);
+};
+
+void PrintCommandStatus(bool status) {
+  PrintOpStatus("Command", status);
+}
+
+void PrintFieldAndValue(const string& field, const string& value) {
+  cout << COLOR_BOLDWHITE << field << ": " << COLOR_BOLDYELLOW << value
+       << COLOR_OFF << endl;
+}
+
+void PrintFieldAndBoolValue(const string& field, bool value) {
+  PrintFieldAndValue(field, (value ? "true" : "false"));
+}
+
+void HandleDisable(IBluetooth* bt_iface, const vector<string>& args) {
+  CHECK_NO_ARGS(args);
+  PrintCommandStatus(bt_iface->Disable());
+}
+
+void HandleEnable(IBluetooth* bt_iface, const vector<string>& args) {
+  bool is_restricted_mode = false;
+
+  for (auto iter : args) {
+    const std::string& arg = iter;
+    if (arg == "-h") {
+      static const char kUsage[] =
+          "Usage: start-adv [flags]\n"
+          "\n"
+          "Flags:\n"
+          "\t--restricted|-r\tStart in restricted mode\n";
+      cout << kUsage << endl;
+      return;
+    } else if (arg == "--restricted" || arg == "-r") {
+      is_restricted_mode = true;
+    }
+  }
+
+  PrintCommandStatus(bt_iface->Enable(is_restricted_mode));
+}
+
+void HandleGetState(IBluetooth* bt_iface, const vector<string>& args) {
+  CHECK_NO_ARGS(args);
+  bluetooth::AdapterState state = static_cast<bluetooth::AdapterState>(
+      bt_iface->GetState());
+  PrintFieldAndValue("Adapter state", bluetooth::AdapterStateToString(state));
+}
+
+void HandleIsEnabled(IBluetooth* bt_iface, const vector<string>& args) {
+  CHECK_NO_ARGS(args);
+  bool enabled = bt_iface->IsEnabled();
+  PrintFieldAndBoolValue("Adapter enabled", enabled);
+}
+
+void HandleGetLocalAddress(IBluetooth* bt_iface, const vector<string>& args) {
+  CHECK_NO_ARGS(args);
+  string address = bt_iface->GetAddress();
+  PrintFieldAndValue("Adapter address", address);
+}
+
+void HandleSetLocalName(IBluetooth* bt_iface, const vector<string>& args) {
+  CHECK_ARGS_COUNT(args, >=, 1, "No name was given");
+
+  std::string name;
+  for (const auto& arg : args)
+    name += arg + " ";
+
+  base::TrimWhitespaceASCII(name, base::TRIM_TRAILING, &name);
+
+  PrintCommandStatus(bt_iface->SetName(name));
+}
+
+void HandleGetLocalName(IBluetooth* bt_iface, const vector<string>& args) {
+  CHECK_NO_ARGS(args);
+  string name = bt_iface->GetName();
+  PrintFieldAndValue("Adapter name", name);
+}
+
+void HandleAdapterInfo(IBluetooth* bt_iface, const vector<string>& args) {
+  CHECK_NO_ARGS(args);
+
+  cout << COLOR_BOLDWHITE "Adapter Properties: " COLOR_OFF << endl;
+
+  PrintFieldAndValue("\tAddress", bt_iface->GetAddress());
+  PrintFieldAndValue("\tState", bluetooth::AdapterStateToString(
+      static_cast<bluetooth::AdapterState>(bt_iface->GetState())));
+  PrintFieldAndValue("\tName", bt_iface->GetName());
+  PrintFieldAndBoolValue("\tMulti-Adv. supported",
+                         bt_iface->IsMultiAdvertisementSupported());
+}
+
+void HandleSupportsMultiAdv(IBluetooth* bt_iface, const vector<string>& args) {
+  CHECK_NO_ARGS(args);
+
+  bool status = bt_iface->IsMultiAdvertisementSupported();
+  PrintFieldAndBoolValue("Multi-advertisement support", status);
+}
+
+void HandleRegisterBLE(IBluetooth* bt_iface, const vector<string>& args) {
+  CHECK_NO_ARGS(args);
+
+  if (ble_registering.load()) {
+    PrintError("In progress");
+    return;
+  }
+
+  if (ble_client_id.load()) {
+    PrintError("Already registered");
+    return;
+  }
+
+  sp<IBluetoothLowEnergy> ble_iface = bt_iface->GetLowEnergyInterface();
+  if (!ble_iface.get()) {
+    PrintError("Failed to obtain handle to Bluetooth Low Energy interface");
+    return;
+  }
+
+  bool status = ble_iface->RegisterClient(new CLIBluetoothLowEnergyCallback());
+  ble_registering = status;
+  PrintCommandStatus(status);
+}
+
+void HandleUnregisterBLE(IBluetooth* bt_iface, const vector<string>& args) {
+  CHECK_NO_ARGS(args);
+
+  if (!ble_client_id.load()) {
+    PrintError("Not registered");
+    return;
+  }
+
+  sp<IBluetoothLowEnergy> ble_iface = bt_iface->GetLowEnergyInterface();
+  if (!ble_iface.get()) {
+    PrintError("Failed to obtain handle to Bluetooth Low Energy interface");
+    return;
+  }
+
+  ble_iface->UnregisterClient(ble_client_id.load());
+  ble_client_id = 0;
+  PrintCommandStatus(true);
+}
+
+void HandleUnregisterAllBLE(IBluetooth* bt_iface, const vector<string>& args) {
+  CHECK_NO_ARGS(args);
+
+  sp<IBluetoothLowEnergy> ble_iface = bt_iface->GetLowEnergyInterface();
+  if (!ble_iface.get()) {
+    PrintError("Failed to obtain handle to Bluetooth Low Energy interface");
+    return;
+  }
+
+  ble_iface->UnregisterAll();
+  PrintCommandStatus(true);
+}
+
+void HandleRegisterGATT(IBluetooth* bt_iface, const vector<string>& args) {
+  CHECK_NO_ARGS(args);
+
+  if (gatt_registering.load()) {
+    PrintError("In progress");
+    return;
+  }
+
+  if (gatt_client_id.load()) {
+    PrintError("Already registered");
+    return;
+  }
+
+  sp<IBluetoothGattClient> gatt_iface = bt_iface->GetGattClientInterface();
+  if (!gatt_iface.get()) {
+    PrintError("Failed to obtain handle to Bluetooth GATT Client interface");
+    return;
+  }
+
+  bool status = gatt_iface->RegisterClient(new CLIGattClientCallback());
+  gatt_registering = status;
+  PrintCommandStatus(status);
+}
+
+void HandleUnregisterGATT(IBluetooth* bt_iface, const vector<string>& args) {
+  CHECK_NO_ARGS(args);
+
+  if (!gatt_client_id.load()) {
+    PrintError("Not registered");
+    return;
+  }
+
+  sp<IBluetoothGattClient> gatt_iface = bt_iface->GetGattClientInterface();
+  if (!gatt_iface.get()) {
+    PrintError("Failed to obtain handle to Bluetooth GATT Client interface");
+    return;
+  }
+
+  gatt_iface->UnregisterClient(gatt_client_id.load());
+  gatt_client_id = 0;
+  PrintCommandStatus(true);
+}
+
+void HandleStartAdv(IBluetooth* bt_iface, const vector<string>& args) {
+  bool include_name = false;
+  bool include_tx_power = false;
+  bool connectable = false;
+  bool set_manufacturer_data = false;
+  bool set_uuid = false;
+  bluetooth::UUID uuid;
+
+  for (auto iter = args.begin(); iter != args.end(); ++iter) {
+    const std::string& arg = *iter;
+    if (arg == "-n")
+      include_name = true;
+    else if (arg == "-t")
+      include_tx_power = true;
+    else if (arg == "-c")
+      connectable = true;
+    else if (arg == "-m")
+      set_manufacturer_data = true;
+    else if (arg == "-u") {
+      // This flag has a single argument.
+      ++iter;
+      if (iter == args.end()) {
+        PrintError("Expected a UUID after -u");
+        return;
+      }
+
+      std::string uuid_str = *iter;
+      uuid = bluetooth::UUID(uuid_str);
+      if (!uuid.is_valid()) {
+        PrintError("Invalid UUID: " + uuid_str);
+        return;
+      }
+
+      set_uuid = true;
+    }
+    else if (arg == "-h") {
+      static const char kUsage[] =
+          "Usage: start-adv [flags]\n"
+          "\n"
+          "Flags:\n"
+          "\t-n\tInclude device name\n"
+          "\t-t\tInclude TX power\n"
+          "\t-c\tSend connectable adv. packets (default is non-connectable)\n"
+          "\t-m\tInclude random manufacturer data\n"
+          "\t-h\tShow this help message\n";
+      cout << kUsage << endl;
+      return;
+    }
+    else {
+      PrintError("Unrecognized option: " + arg);
+      return;
+    }
+  }
+
+  if (!ble_client_id.load()) {
+    PrintError("BLE not registered");
+    return;
+  }
+
+  sp<IBluetoothLowEnergy> ble_iface = bt_iface->GetLowEnergyInterface();
+  if (!ble_iface.get()) {
+    PrintError("Failed to obtain handle to Bluetooth Low Energy interface");
+    return;
+  }
+
+  std::vector<uint8_t> data;
+  if (set_manufacturer_data) {
+    data = {{
+      0x07, bluetooth::kEIRTypeManufacturerSpecificData,
+      0xe0, 0x00,
+      'T', 'e', 's', 't'
+    }};
+  }
+
+  if (set_uuid) {
+    // Determine the type and length bytes.
+    int uuid_size = uuid.GetShortestRepresentationSize();
+    uint8_t type;
+    if (uuid_size == bluetooth::UUID::kNumBytes128)
+      type = bluetooth::kEIRTypeComplete128BitUUIDs;
+    else if (uuid_size == bluetooth::UUID::kNumBytes32)
+      type = bluetooth::kEIRTypeComplete32BitUUIDs;
+    else if (uuid_size == bluetooth::UUID::kNumBytes16)
+      type = bluetooth::kEIRTypeComplete16BitUUIDs;
+    else
+      NOTREACHED() << "Unexpected size: " << uuid_size;
+
+    data.push_back(uuid_size + 1);
+    data.push_back(type);
+
+    auto uuid_bytes = uuid.GetFullLittleEndian();
+    int index = (uuid_size == 16) ? 0 : 12;
+    data.insert(data.end(), uuid_bytes.data() + index,
+                uuid_bytes.data() + index + uuid_size);
+  }
+
+  base::TimeDelta timeout;
+
+  bluetooth::AdvertiseSettings settings(
+      bluetooth::AdvertiseSettings::MODE_LOW_POWER,
+      timeout,
+      bluetooth::AdvertiseSettings::TX_POWER_LEVEL_MEDIUM,
+      connectable);
+
+  bluetooth::AdvertiseData adv_data(data);
+  adv_data.set_include_device_name(include_name);
+  adv_data.set_include_tx_power_level(include_tx_power);
+
+  bluetooth::AdvertiseData scan_rsp;
+
+  bool status = ble_iface->StartMultiAdvertising(ble_client_id.load(),
+                                                 adv_data, scan_rsp, settings);
+  PrintCommandStatus(status);
+}
+
+void HandleStopAdv(IBluetooth* bt_iface, const vector<string>& args) {
+  if (!ble_client_id.load()) {
+    PrintError("BLE not registered");
+    return;
+  }
+
+  sp<IBluetoothLowEnergy> ble_iface = bt_iface->GetLowEnergyInterface();
+  if (!ble_iface.get()) {
+    PrintError("Failed to obtain handle to Bluetooth Low Energy interface");
+    return;
+  }
+
+  bool status = ble_iface->StopMultiAdvertising(ble_client_id.load());
+  PrintCommandStatus(status);
+}
+
+void HandleConnect(IBluetooth* bt_iface, const vector<string>& args) {
+  string address;
+
+  if (args.size() != 1) {
+    PrintError("Expected MAC address as only argument");
+    return;
+  }
+
+  address = args[0];
+
+  if (!ble_client_id.load()) {
+    PrintError("BLE not registered");
+    return;
+  }
+
+  sp<IBluetoothLowEnergy> ble_iface = bt_iface->GetLowEnergyInterface();
+  if (!ble_iface.get()) {
+    PrintError("Failed to obtain handle to Bluetooth Low Energy interface");
+    return;
+  }
+
+  bool status = ble_iface->Connect(ble_client_id.load(), address.c_str(),
+                                   false /*  is_direct */);
+
+  PrintCommandStatus(status);
+}
+
+void HandleDisconnect(IBluetooth* bt_iface, const vector<string>& args) {
+  string address;
+
+  if (args.size() != 1) {
+    PrintError("Expected MAC address as only argument");
+    return;
+  }
+
+  address = args[0];
+
+  if (!ble_client_id.load()) {
+    PrintError("BLE not registered");
+    return;
+  }
+
+  sp<IBluetoothLowEnergy> ble_iface = bt_iface->GetLowEnergyInterface();
+  if (!ble_iface.get()) {
+    PrintError("Failed to obtain handle to Bluetooth Low Energy interface");
+    return;
+  }
+
+  bool status = ble_iface->Disconnect(ble_client_id.load(), address.c_str());
+
+  PrintCommandStatus(status);
+}
+
+void HandleSetMtu(IBluetooth* bt_iface, const vector<string>& args) {
+  string address;
+  int mtu;
+
+  if (args.size() != 2) {
+    PrintError("Usage: set-mtu [address] [mtu]");
+    return;
+  }
+
+  address = args[0];
+  mtu = std::stoi(args[1]);
+
+  if (mtu < 23) {
+    PrintError("MTU must be 23 or larger");
+    return;
+  }
+
+  if (!ble_client_id.load()) {
+    PrintError("BLE not registered");
+    return;
+  }
+
+  sp<IBluetoothLowEnergy> ble_iface = bt_iface->GetLowEnergyInterface();
+  if (!ble_iface.get()) {
+    PrintError("Failed to obtain handle to Bluetooth Low Energy interface");
+    return;
+  }
+
+  bool status = ble_iface->SetMtu(ble_client_id.load(), address.c_str(), mtu);
+  PrintCommandStatus(status);
+}
+
+void HandleStartLeScan(IBluetooth* bt_iface, const vector<string>& args) {
+  if (!ble_client_id.load()) {
+    PrintError("BLE not registered");
+    return;
+  }
+
+  for (auto arg : args) {
+    if (arg == "-d") {
+      dump_scan_record = true;
+    } else if (arg == "-h") {
+      static const char kUsage[] =
+          "Usage: start-le-scan [flags]\n"
+          "\n"
+          "Flags:\n"
+          "\t-d\tDump scan record\n"
+          "\t-h\tShow this help message\n";
+      cout << kUsage << endl;
+      return;
+    }
+  }
+
+  sp<IBluetoothLowEnergy> ble_iface = bt_iface->GetLowEnergyInterface();
+  if (!ble_iface.get()) {
+    PrintError("Failed to obtain handle to Bluetooth Low Energy interface");
+    return;
+  }
+
+  bluetooth::ScanSettings settings;
+  std::vector<bluetooth::ScanFilter> filters;
+
+  bool status = ble_iface->StartScan(ble_client_id.load(), settings, filters);
+  PrintCommandStatus(status);
+}
+
+void HandleStopLeScan(IBluetooth* bt_iface, const vector<string>& args) {
+  if (!ble_client_id.load()) {
+    PrintError("BLE not registered");
+    return;
+  }
+
+  sp<IBluetoothLowEnergy> ble_iface = bt_iface->GetLowEnergyInterface();
+  if (!ble_iface.get()) {
+    PrintError("Failed to obtain handle to Bluetooth Low Energy interface");
+    return;
+  }
+
+  bluetooth::ScanSettings settings;
+  std::vector<bluetooth::ScanFilter> filters;
+
+  bool status = ble_iface->StopScan(ble_client_id.load());
+  PrintCommandStatus(status);
+}
+
+void HandleHelp(IBluetooth* bt_iface, const vector<string>& args);
+
+struct {
+  string command;
+  void (*func)(IBluetooth*, const vector<string>& args);
+  string help;
+} kCommandMap[] = {
+  { "help", HandleHelp, "\t\t\tDisplay this message" },
+  { "disable", HandleDisable, "\t\t\tDisable Bluetooth" },
+  { "enable", HandleEnable, "\t\t\tEnable Bluetooth (-h for options)" },
+  { "get-state", HandleGetState, "\t\tGet the current adapter state" },
+  { "is-enabled", HandleIsEnabled, "\t\tReturn if Bluetooth is enabled" },
+  { "get-local-address", HandleGetLocalAddress,
+    "\tGet the local adapter address" },
+  { "set-local-name", HandleSetLocalName, "\t\tSet the local adapter name" },
+  { "get-local-name", HandleGetLocalName, "\t\tGet the local adapter name" },
+  { "adapter-info", HandleAdapterInfo, "\t\tPrint adapter properties" },
+  { "supports-multi-adv", HandleSupportsMultiAdv,
+    "\tWhether multi-advertisement is currently supported" },
+  { "register-ble", HandleRegisterBLE,
+    "\t\tRegister with the Bluetooth Low Energy interface" },
+  { "unregister-ble", HandleUnregisterBLE,
+    "\t\tUnregister from the Bluetooth Low Energy interface" },
+  { "unregister-all-ble", HandleUnregisterAllBLE,
+    "\tUnregister all clients from the Bluetooth Low Energy interface" },
+  { "register-gatt", HandleRegisterGATT,
+    "\t\tRegister with the Bluetooth GATT Client interface" },
+  { "unregister-gatt", HandleUnregisterGATT,
+    "\t\tUnregister from the Bluetooth GATT Client interface" },
+  { "connect-le", HandleConnect, "\t\tConnect to LE device (-h for options)"},
+  { "disconnect-le", HandleDisconnect,
+    "\t\tDisconnect LE device (-h for options)"},
+  { "set-mtu", HandleSetMtu, "\t\tSet MTU (-h for options)"},
+  { "start-adv", HandleStartAdv, "\t\tStart advertising (-h for options)" },
+  { "stop-adv", HandleStopAdv, "\t\tStop advertising" },
+  { "start-le-scan", HandleStartLeScan,
+    "\t\tStart LE device scan (-h for options)" },
+  { "stop-le-scan", HandleStopLeScan, "\t\tStop LE device scan" },
+  {},
+};
+
+void HandleHelp(IBluetooth* /* bt_iface */, const vector<string>& /* args */) {
+  cout << endl;
+  for (int i = 0; kCommandMap[i].func; i++)
+    cout << "\t" << kCommandMap[i].command << kCommandMap[i].help << endl;
+  cout << endl;
+}
+
+const char kExecuteLong[] = "exec";
+const char kExecuteShort[] = "e";
+
+bool ExecuteCommand(sp<IBluetooth> bt_iface, std::string &command) {
+  vector<string> args =
+      base::SplitString(command, " ", base::TRIM_WHITESPACE,
+                        base::SPLIT_WANT_ALL);
+
+  if (args.empty())
+    return true;
+
+  // The first argument is the command while the remaining are what we pass to
+  // the handler functions.
+  command = args[0];
+  args.erase(args.begin());
+
+  for (int i = 0; kCommandMap[i].func; i++) {
+    if (command == kCommandMap[i].command) {
+      kCommandMap[i].func(bt_iface.get(), args);
+      return true;
+    }
+  }
+
+  cout << "Unrecognized command: " << command << endl;
+  return false;
+}
+
+}  // namespace
+
+class BluetoothDeathRecipient : public android::IBinder::DeathRecipient {
+ public:
+  BluetoothDeathRecipient() = default;
+  ~BluetoothDeathRecipient() override = default;
+
+  // android::IBinder::DeathRecipient override:
+  void binderDied(const android::wp<android::IBinder>& /* who */) override {
+    BeginAsyncOut();
+    cout << COLOR_BOLDWHITE "The Bluetooth daemon has died" COLOR_OFF << endl;
+    cout << "\nPress 'ENTER' to exit.";
+    EndAsyncOut();
+
+    android::IPCThreadState::self()->stopProcess();
+    should_exit = true;
+  }
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(BluetoothDeathRecipient);
+};
+
+
+int main(int argc, char* argv[]) {
+  base::AtExitManager exit_manager;
+  base::CommandLine::Init(argc, argv);
+  logging::LoggingSettings log_settings;
+
+  if (!logging::InitLogging(log_settings)) {
+    LOG(ERROR) << "Failed to set up logging";
+    return EXIT_FAILURE;
+  }
+
+  sp<IBluetooth> bt_iface = IBluetooth::getClientInterface();
+  if (!bt_iface.get()) {
+    LOG(ERROR) << "Failed to obtain handle on IBluetooth";
+    return EXIT_FAILURE;
+  }
+
+  sp<BluetoothDeathRecipient> dr(new BluetoothDeathRecipient());
+  if (android::IInterface::asBinder(bt_iface.get())->linkToDeath(dr) !=
+      android::NO_ERROR) {
+    LOG(ERROR) << "Failed to register DeathRecipient for IBluetooth";
+    return EXIT_FAILURE;
+  }
+
+  // Initialize the Binder process thread pool. We have to set this up,
+  // otherwise, incoming callbacks from IBluetoothCallback will block the main
+  // thread (in other words, we have to do this as we are a "Binder server").
+  android::ProcessState::self()->startThreadPool();
+
+  // Register Adapter state-change callback
+  sp<CLIBluetoothCallback> callback = new CLIBluetoothCallback();
+  bt_iface->RegisterCallback(callback);
+
+  cout << COLOR_BOLDWHITE << "Fluoride Command-Line Interface\n" << COLOR_OFF
+       << endl
+       << "Type \"help\" to see possible commands.\n"
+       << endl;
+
+  string command;
+
+  // Add commands from the command line, if they exist.
+  auto command_line = base::CommandLine::ForCurrentProcess();
+  if (command_line->HasSwitch(kExecuteLong)) {
+    command += command_line->GetSwitchValueASCII(kExecuteLong);
+  }
+
+  if (command_line->HasSwitch(kExecuteShort)) {
+    if (!command.empty())
+      command += " ; ";
+    command += command_line->GetSwitchValueASCII(kExecuteShort);
+  }
+
+  while (true) {
+    vector<string> commands = base::SplitString(command, ";",
+                                                base::TRIM_WHITESPACE,
+                                                base::SPLIT_WANT_ALL);
+    for (string command : commands) {
+      if (!ExecuteCommand(bt_iface, command))
+        break;
+    }
+
+    commands.clear();
+
+    PrintPrompt();
+
+    showing_prompt = true;
+    auto& istream = getline(cin, command);
+    showing_prompt = false;
+
+    if (istream.eof() || should_exit.load()) {
+      cout << "\nExiting" << endl;
+      return EXIT_SUCCESS;
+    }
+
+    if (!istream.good()) {
+      LOG(ERROR) << "An error occured while reading input";
+      return EXIT_FAILURE;
+    }
+
+  }
+
+  return EXIT_SUCCESS;
+}
diff --git a/rtkbt/code/bt/service/common/README b/rtkbt/code/bt/service/common/README
new file mode 100755
index 0000000..de9e914
--- /dev/null
+++ b/rtkbt/code/bt/service/common/README
@@ -0,0 +1,18 @@
+This directory contains all the "common" sources between the bluetooth daemon
+and our client library. All source files here are under the "bluetooth"
+subdirectory, which is the exported root path for the client static library.
+Only common files should go here. All headers that go into common/bluetooth must
+only include other headers from common/bluetooth and must use "bluetooth" as the
+root path, e.g.:
+
+#include <bluetooth/uuid.h>
+
+This is so that client applications that link against the client library have
+one common include path exported to them, and our headers can find eachother
+within that.
+
+It is however OK to include from the package root when including common headers
+from source files as these are pre-compiled. For example,
+common/bluetooth/adapter_state.cpp should do:
+
+#include "service/common/bluetooth/adapter_state.h"
diff --git a/rtkbt/code/bt/service/common/bluetooth/adapter_state.cpp b/rtkbt/code/bt/service/common/bluetooth/adapter_state.cpp
new file mode 100755
index 0000000..87d23b1
--- /dev/null
+++ b/rtkbt/code/bt/service/common/bluetooth/adapter_state.cpp
@@ -0,0 +1,44 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#include "service/common/bluetooth/adapter_state.h"
+
+namespace bluetooth {
+
+std::string AdapterStateToString(AdapterState state) {
+  switch (state) {
+  case ADAPTER_STATE_DISCONNECTED:
+    return "ADAPTER_STATE_DISCONNECTED";
+  case ADAPTER_STATE_CONNECTING:
+    return "ADAPTER_STATE_CONNECTING";
+  case ADAPTER_STATE_CONNECTED:
+    return "ADAPTER_STATE_CONNECTED";
+  case ADAPTER_STATE_DISCONNECTING:
+    return "ADAPTER_STATE_DISCONNECTING";
+  case ADAPTER_STATE_OFF:
+    return "ADAPTER_STATE_OFF";
+  case ADAPTER_STATE_TURNING_ON:
+    return "ADAPTER_STATE_TURNING_ON";
+  case ADAPTER_STATE_ON:
+    return "ADAPTER_STATE_ON";
+  case ADAPTER_STATE_TURNING_OFF:
+    return "ADAPTER_STATE_TURNING_OFF";
+  default:
+    return "unknown state";
+  }
+}
+
+}  // namespace bluetooth
diff --git a/rtkbt/code/bt/service/common/bluetooth/adapter_state.h b/rtkbt/code/bt/service/common/bluetooth/adapter_state.h
new file mode 100755
index 0000000..1b2fbe4
--- /dev/null
+++ b/rtkbt/code/bt/service/common/bluetooth/adapter_state.h
@@ -0,0 +1,43 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#pragma once
+
+#include <string>
+
+namespace bluetooth {
+
+// Possible Adapter states. The values for each enumration have been copied
+// from frameworks/base/core/java/android/bluetooth/BluetoothAdapter.java.
+// These values need to match their android.bluetooth.BluetoothAdapter
+// counterparts for this to be compatible with the framework, hence we
+// redeclare them here.
+enum AdapterState {
+  ADAPTER_STATE_DISCONNECTED = 0,
+  ADAPTER_STATE_CONNECTING = 1,
+  ADAPTER_STATE_CONNECTED = 2,
+  ADAPTER_STATE_DISCONNECTING = 3,
+  ADAPTER_STATE_OFF = 10,
+  ADAPTER_STATE_TURNING_ON = 11,
+  ADAPTER_STATE_ON = 12,
+  ADAPTER_STATE_TURNING_OFF = 13,
+  ADAPTER_STATE_INVALID = 0xFFFF
+};
+
+// Returns a string for the given Adapter state |state|.
+std::string AdapterStateToString(AdapterState state);
+
+}  // namespace bluetooth
diff --git a/rtkbt/code/bt/service/common/bluetooth/advertise_data.cpp b/rtkbt/code/bt/service/common/bluetooth/advertise_data.cpp
new file mode 100755
index 0000000..c745afa
--- /dev/null
+++ b/rtkbt/code/bt/service/common/bluetooth/advertise_data.cpp
@@ -0,0 +1,109 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#include "service/common/bluetooth/advertise_data.h"
+
+#include <base/logging.h>
+
+#include "stack/include/bt_types.h"
+#include "stack/include/hcidefs.h"
+
+namespace bluetooth {
+
+AdvertiseData::AdvertiseData(const std::vector<uint8_t>& data)
+    : data_(data),
+      include_device_name_(false),
+      include_tx_power_level_(false) {
+}
+
+AdvertiseData::AdvertiseData()
+    : include_device_name_(false),
+      include_tx_power_level_(false) {
+}
+
+AdvertiseData::AdvertiseData(const AdvertiseData& other)
+    : data_(other.data_),
+      include_device_name_(other.include_device_name_),
+      include_tx_power_level_(other.include_tx_power_level_) {
+}
+
+bool AdvertiseData::IsValid() const {
+  size_t len = data_.size();
+
+  // Consider empty data as valid.
+  if (!len)
+    return true;
+
+  for (size_t i = 0, field_len = 0; i < len; i += (field_len + 1)) {
+    field_len = data_[i];
+
+    // If the length of the current field would exceed the total data length,
+    // then the data is badly formatted.
+    if (i + field_len >= len) {
+      VLOG(1) << "Advertising data badly formatted";
+      return false;
+    }
+
+    // A field length of 0 would be invalid as it should at least contain the
+    // EIR field type.
+    if (field_len < 1)
+      return false;
+
+    uint8_t type = data_[i + 1];
+
+    // Clients are not allowed to set the following EIR fields as these are
+    // managed by stack.
+    switch (type) {
+    case HCI_EIR_FLAGS_TYPE:
+    case HCI_EIR_TX_POWER_LEVEL_TYPE:
+    case HCI_EIR_SHORTENED_LOCAL_NAME_TYPE:
+    case HCI_EIR_COMPLETE_LOCAL_NAME_TYPE:
+    case HCI_EIR_OOB_BD_ADDR_TYPE:
+    case HCI_EIR_OOB_COD_TYPE:
+    case HCI_EIR_OOB_SSP_HASH_C_TYPE:
+    case HCI_EIR_OOB_SSP_RAND_R_TYPE:
+      VLOG(1) << "Cannot set EIR field type: " << type;
+      return false;
+    default:
+      break;
+    }
+  }
+
+  return true;
+}
+
+bool AdvertiseData::operator==(const AdvertiseData& rhs) const {
+  if (include_tx_power_level_ != rhs.include_tx_power_level_)
+    return false;
+
+  if (include_device_name_ != rhs.include_device_name_)
+    return false;
+
+  return data_ == rhs.data_;
+}
+
+AdvertiseData& AdvertiseData::operator=(const AdvertiseData& other) {
+  if (this == &other)
+    return *this;
+
+  data_ = other.data_;
+  include_device_name_ = other.include_device_name_;
+  include_tx_power_level_ = other.include_tx_power_level_;
+
+  return *this;
+}
+
+}  // namespace bluetooth
diff --git a/rtkbt/code/bt/service/common/bluetooth/advertise_data.h b/rtkbt/code/bt/service/common/bluetooth/advertise_data.h
new file mode 100755
index 0000000..5e6226a
--- /dev/null
+++ b/rtkbt/code/bt/service/common/bluetooth/advertise_data.h
@@ -0,0 +1,79 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#pragma once
+
+#include <stdint.h>
+
+#include <vector>
+
+#include <base/macros.h>
+
+namespace bluetooth {
+
+// Represents a data packet for Bluetooth Low Energy advertisements. This is the
+// native equivalent of the Android framework class defined in
+// frameworks/base/core/j/android/bluetooth/le/AdvertiseData.java
+class AdvertiseData final {
+ public:
+  // Constructs an AdvertiseData with the given parameters. |data| can only
+  // contain the "Service UUIDs", "Service Data", and "Manufacturer Data" fields
+  // as specified in the Core Specification Supplement. |data| must be properly
+  // formatted according to the supplement and contains the data as it will be
+  // sent over the wire.
+  //
+  // The values for include_device_name() and include_tx_power_level() are
+  // initialized to false by default. These can be modified using the setters
+  // declared below.
+  explicit AdvertiseData(const std::vector<uint8_t>& data);
+
+  // Default constructor initializes all fields to be empty/false.
+  AdvertiseData();
+  AdvertiseData(const AdvertiseData& other);
+  ~AdvertiseData() = default;
+
+  // Returns true if the advertising data is formatted correctly according to
+  // the TLV format.
+  bool IsValid() const;
+
+  // data() returns the current advertising data contained by this instance. The
+  // data is in the TLV format as specified in the Bluetooth Core Specification.
+  const std::vector<uint8_t>& data() const { return data_; }
+
+  // Whether the device name should be included in the advertisement packet.
+  bool include_device_name() const { return include_device_name_; }
+  void set_include_device_name(bool value) { include_device_name_ = value; }
+
+  // Whether the transmission power level should be included in the
+  // advertisement packet.
+  bool include_tx_power_level() const { return include_tx_power_level_; }
+  void set_include_tx_power_level(bool value) {
+    include_tx_power_level_ = value;
+  }
+
+  // Comparison operator.
+  bool operator==(const AdvertiseData& rhs) const;
+
+  // Assignment operator
+  AdvertiseData& operator=(const AdvertiseData& other);
+
+ private:
+  std::vector<uint8_t> data_;
+  bool include_device_name_;
+  bool include_tx_power_level_;
+};
+
+}  // namespace bluetooth
diff --git a/rtkbt/code/bt/service/common/bluetooth/advertise_settings.cpp b/rtkbt/code/bt/service/common/bluetooth/advertise_settings.cpp
new file mode 100755
index 0000000..ffe65ea
--- /dev/null
+++ b/rtkbt/code/bt/service/common/bluetooth/advertise_settings.cpp
@@ -0,0 +1,55 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#include "service/common/bluetooth/advertise_settings.h"
+
+namespace bluetooth {
+
+AdvertiseSettings::AdvertiseSettings(
+    Mode mode,
+    base::TimeDelta timeout,
+    TxPowerLevel tx_power_level,
+    bool connectable)
+    : mode_(mode),
+      timeout_(timeout),
+      tx_power_level_(tx_power_level),
+      connectable_(connectable) {
+}
+
+// Default values are taken from the AdvertiseSettings.java
+AdvertiseSettings::AdvertiseSettings()
+    : mode_(MODE_LOW_POWER),
+      tx_power_level_(TX_POWER_LEVEL_MEDIUM),
+      connectable_(true) {
+}
+
+bool AdvertiseSettings::operator==(const AdvertiseSettings& rhs) const {
+  if (mode_ != rhs.mode_)
+    return false;
+
+  if (timeout_ != rhs.timeout_)
+    return false;
+
+  if (tx_power_level_ != rhs.tx_power_level_)
+    return false;
+
+  if (connectable_ != rhs.connectable_)
+    return false;
+
+  return true;
+}
+
+}  // namespace bluetooth
diff --git a/rtkbt/code/bt/service/common/bluetooth/advertise_settings.h b/rtkbt/code/bt/service/common/bluetooth/advertise_settings.h
new file mode 100755
index 0000000..5d928f4
--- /dev/null
+++ b/rtkbt/code/bt/service/common/bluetooth/advertise_settings.h
@@ -0,0 +1,98 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#pragma once
+
+#include <base/macros.h>
+#include <base/time/time.h>
+
+namespace bluetooth {
+
+// AdvertiseSettings provides a way to adjust advertising preferences for each
+// Bluetooth LE advertisement instance. This is the native equivalent of the
+// Android framework class defined in
+// frameworks/base/core/java/android/bluetooth/le/AdvertiseSettings.java
+class AdvertiseSettings {
+ public:
+  // Advertising mode describes power consumption mode used for advertising.
+  enum Mode {
+    // Perform Bluetooth LE advertising in low power mode. This is the default
+    // and preferred advertising mode as it consumes the least power.
+    MODE_LOW_POWER = 0x00,
+
+    // Perform Bluetooth LE advertising in balanced power mode. This is balanced
+    // between advertising frequency and power consumption.
+    MODE_BALANCED = 0x01,
+
+    // Perform Bluetooth LE advertising in low latency, high power mode. This
+    // has the highest power consumption and should not be used for continuous
+    // background advertising.
+    MODE_LOW_LATENCY = 0x02,
+  };
+
+  // Levels that can be set for advertising transmission power.
+  enum TxPowerLevel {
+    // Advertise using the lowest transmission (TX) power level. Low
+    // transmission power can be used to restrict the visibility range of
+    // advertising packets.
+    TX_POWER_LEVEL_ULTRA_LOW = 0x00,
+
+    // Advertise using low TX power level.
+    TX_POWER_LEVEL_LOW = 0x01,
+
+    // Advertise using medium TX power level.
+    TX_POWER_LEVEL_MEDIUM = 0x02,
+
+    // Advertise using high TX power level. This corresponds to largest
+    // visibility range of the advertising packet.
+    TX_POWER_LEVEL_HIGH = 0x03,
+  };
+
+  AdvertiseSettings(Mode mode,
+                    base::TimeDelta timeout,
+                    TxPowerLevel tx_power_level,
+                    bool connectable);
+
+  // The default constructor sets all fields to defaults:
+  //   mode: MODE_LOW_POWER
+  //   TX power level: TX_POWER_LEVEL_MEDIUM
+  //   connectable: true
+  AdvertiseSettings();
+  ~AdvertiseSettings() = default;
+
+  // Returns the advertise mode.
+  Mode mode() const { return mode_; }
+
+  // Returns the advertising time limit in milliseconds.
+  const base::TimeDelta& timeout() const { return timeout_; }
+
+  // Returns the TX power level for advertising.
+  TxPowerLevel tx_power_level() const { return tx_power_level_; }
+
+  // Returns whether the advertisement will indicate connectable.
+  bool connectable() const { return connectable_; }
+
+  // Comparison operator.
+  bool operator==(const AdvertiseSettings& rhs) const;
+
+ private:
+  Mode mode_;
+  base::TimeDelta timeout_;
+  TxPowerLevel tx_power_level_;
+  bool connectable_;
+};
+
+}  // namespace bluetooth
diff --git a/rtkbt/code/bt/service/common/bluetooth/binder/IBluetooth.cpp b/rtkbt/code/bt/service/common/bluetooth/binder/IBluetooth.cpp
new file mode 100755
index 0000000..3fb0916
--- /dev/null
+++ b/rtkbt/code/bt/service/common/bluetooth/binder/IBluetooth.cpp
@@ -0,0 +1,314 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#include "service/common/bluetooth/binder/IBluetooth.h"
+
+#include <base/logging.h>
+#include <binder/IServiceManager.h>
+#include <binder/Parcel.h>
+
+using android::defaultServiceManager;
+using android::IBinder;
+using android::interface_cast;
+using android::IServiceManager;
+using android::Parcel;
+using android::PERMISSION_DENIED;
+using android::sp;
+using android::status_t;
+using android::String16;
+
+namespace ipc {
+namespace binder {
+
+// static
+const char IBluetooth::kServiceName[] = "bluetooth-service";
+
+// static
+sp<IBluetooth> IBluetooth::getClientInterface() {
+  sp<IServiceManager> sm = defaultServiceManager();
+  if (!sm.get()) {
+    LOG(ERROR) << "Failed to obtain a handle to the default Service Manager";
+    return nullptr;
+  }
+
+  sp<IBinder> binder = sm->getService(String16(kServiceName));
+  if (!binder.get()) {
+    LOG(ERROR) << "Failed to obtain a handle to the Bluetooth service";
+    return nullptr;
+  }
+
+  sp<IBluetooth> bt_iface = interface_cast<IBluetooth>(binder);
+  if (!bt_iface.get()) {
+    LOG(ERROR) << "Obtained invalid IBinder handle";
+    return nullptr;
+  }
+
+  return bt_iface;
+}
+
+// BnBluetooth (server) implementation
+// ========================================================
+
+status_t BnBluetooth::onTransact(
+    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) {
+  VLOG(2) << "IBluetooth transaction: " << code;
+
+  switch (code) {
+    case IS_ENABLED_TRANSACTION: {
+      CHECK_INTERFACE(IBluetooth, data, reply);
+      bool is_enabled = IsEnabled();
+      reply->writeInt32(is_enabled);
+      return android::NO_ERROR;
+    }
+    case GET_STATE_TRANSACTION: {
+      CHECK_INTERFACE(IBluetooth, data, reply);
+      int state = GetState();
+      reply->writeInt32(state);
+      return android::NO_ERROR;
+    }
+    case ENABLE_TRANSACTION: {
+      CHECK_INTERFACE(IBluetooth, data, reply);
+      bool start_restricted = data.readBool();
+      bool result = Enable(start_restricted);
+      reply->writeInt32(result);
+      return android::NO_ERROR;
+    }
+    case DISABLE_TRANSACTION: {
+      CHECK_INTERFACE(IBluetooth, data, reply);
+      bool result = Disable();
+      reply->writeInt32(result);
+      return android::NO_ERROR;
+    }
+    case GET_ADDRESS_TRANSACTION: {
+      CHECK_INTERFACE(IBluetooth, data, reply);
+      std::string address = GetAddress();
+      reply->writeCString(address.c_str());
+      return android::NO_ERROR;
+    }
+    case GET_UUIDS_TRANSACTION:
+      CHECK_INTERFACE(IBluetooth, data, reply);
+      // TODO(armansito): Figure out how to handle a Java "ParcelUuid" natively.
+      // (see http://b/23316698).
+      return android::INVALID_OPERATION;
+
+    case SET_NAME_TRANSACTION: {
+      CHECK_INTERFACE(IBluetooth, data, reply);
+      std::string name(data.readCString());
+      bool result = SetName(name);
+      reply->writeInt32(result);
+      return android::NO_ERROR;
+    }
+    case GET_NAME_TRANSACTION: {
+      CHECK_INTERFACE(IBluetooth, data, reply);
+      std::string name = GetName();
+      reply->writeCString(name.c_str());
+      return android::NO_ERROR;
+    }
+    case REGISTER_CALLBACK_TRANSACTION: {
+      CHECK_INTERFACE(IBluetooth, data, reply);
+      sp<IBinder> callback = data.readStrongBinder();
+      RegisterCallback(interface_cast<IBluetoothCallback>(callback));
+      return android::NO_ERROR;
+    }
+    case UNREGISTER_CALLBACK_TRANSACTION: {
+      CHECK_INTERFACE(IBluetooth, data, reply);
+      sp<IBinder> callback = data.readStrongBinder();
+      UnregisterCallback(interface_cast<IBluetoothCallback>(callback));
+      return android::NO_ERROR;
+    }
+    case IS_MULTI_ADVERTISEMENT_SUPPORTED_TRANSACTION: {
+      CHECK_INTERFACE(IBluetooth, data, reply);
+      bool result = IsMultiAdvertisementSupported();
+      reply->writeInt32(result);
+      return android::NO_ERROR;
+    }
+    case GET_LOW_ENERGY_INTERFACE_TRANSACTION: {
+      CHECK_INTERFACE(IBluetooth, data, reply);
+      sp<IBluetoothLowEnergy> ble_iface = GetLowEnergyInterface();
+      reply->writeStrongBinder(IInterface::asBinder(ble_iface.get()));
+      return android::NO_ERROR;
+    }
+    case GET_GATT_CLIENT_INTERFACE_TRANSACTION: {
+      CHECK_INTERFACE(IBluetooth, data, reply);
+      sp<IBluetoothGattClient> gatt_client_iface = GetGattClientInterface();
+      reply->writeStrongBinder(IInterface::asBinder(gatt_client_iface.get()));
+      return android::NO_ERROR;
+    }
+    case GET_GATT_SERVER_INTERFACE_TRANSACTION: {
+      CHECK_INTERFACE(IBluetooth, data, reply);
+      sp<IBluetoothGattServer> gatt_server_iface = GetGattServerInterface();
+      reply->writeStrongBinder(IInterface::asBinder(gatt_server_iface.get()));
+      return android::NO_ERROR;
+    }
+    default:
+      return BBinder::onTransact(code, data, reply, flags);
+  }
+}
+
+// BpBluetooth (client) implementation
+// ========================================================
+
+BpBluetooth::BpBluetooth(const sp<IBinder>& impl)
+    : BpInterface<IBluetooth>(impl) {
+}
+
+bool BpBluetooth::IsEnabled() {
+  Parcel data, reply;
+
+  data.writeInterfaceToken(IBluetooth::getInterfaceDescriptor());
+  remote()->transact(IBluetooth::IS_ENABLED_TRANSACTION, data, &reply);
+
+  return reply.readInt32();
+}
+
+int BpBluetooth::GetState() {
+  Parcel data, reply;
+
+  data.writeInterfaceToken(IBluetooth::getInterfaceDescriptor());
+  remote()->transact(IBluetooth::GET_STATE_TRANSACTION, data, &reply);
+
+  return reply.readInt32();
+}
+
+bool BpBluetooth::Enable(bool start_restricted) {
+  Parcel data, reply;
+
+  data.writeInterfaceToken(IBluetooth::getInterfaceDescriptor());
+  data.writeBool(start_restricted);
+  remote()->transact(IBluetooth::ENABLE_TRANSACTION, data, &reply);
+
+  return reply.readInt32();
+}
+
+bool BpBluetooth::EnableNoAutoConnect() {
+  Parcel data, reply;
+
+  data.writeInterfaceToken(IBluetooth::getInterfaceDescriptor());
+  remote()->transact(IBluetooth::ENABLE_NO_AUTO_CONNECT_TRANSACTION,
+                     data, &reply);
+
+  return reply.readInt32();
+}
+
+bool BpBluetooth::Disable() {
+  Parcel data, reply;
+
+  data.writeInterfaceToken(IBluetooth::getInterfaceDescriptor());
+  remote()->transact(IBluetooth::DISABLE_TRANSACTION, data, &reply);
+
+  return reply.readInt32();
+}
+
+std::string BpBluetooth::GetAddress() {
+  Parcel data, reply;
+
+  data.writeInterfaceToken(IBluetooth::getInterfaceDescriptor());
+  remote()->transact(IBluetooth::GET_ADDRESS_TRANSACTION, data, &reply);
+
+  return reply.readCString();
+}
+
+std::vector<bluetooth::UUID> BpBluetooth::GetUUIDs() {
+  // TODO(armansito): need to deserialize a parceled java.util.ParcelUUID[] to
+  // std::vector<bluetooth::UUID> here (see http://b/23316698).
+  return std::vector<bluetooth::UUID>();
+}
+
+bool BpBluetooth::SetName(const std::string& name) {
+  Parcel data, reply;
+
+  data.writeInterfaceToken(IBluetooth::getInterfaceDescriptor());
+  data.writeCString(name.c_str());
+  remote()->transact(IBluetooth::SET_NAME_TRANSACTION, data, &reply);
+
+  return reply.readInt32();
+}
+
+std::string BpBluetooth::GetName() {
+  Parcel data, reply;
+
+  data.writeInterfaceToken(IBluetooth::getInterfaceDescriptor());
+  remote()->transact(IBluetooth::GET_NAME_TRANSACTION, data, &reply);
+
+  return reply.readCString();
+}
+
+void BpBluetooth::RegisterCallback(const sp<IBluetoothCallback>& callback) {
+  Parcel data, reply;
+
+  data.writeInterfaceToken(IBluetooth::getInterfaceDescriptor());
+  data.writeStrongBinder(IInterface::asBinder(callback.get()));
+
+  remote()->transact(IBluetooth::REGISTER_CALLBACK_TRANSACTION, data, &reply);
+}
+
+void BpBluetooth::UnregisterCallback(const sp<IBluetoothCallback>& callback) {
+  Parcel data, reply;
+
+  data.writeInterfaceToken(IBluetooth::getInterfaceDescriptor());
+  data.writeStrongBinder(IInterface::asBinder(callback.get()));
+
+  remote()->transact(IBluetooth::UNREGISTER_CALLBACK_TRANSACTION, data, &reply);
+}
+
+bool BpBluetooth::IsMultiAdvertisementSupported() {
+  Parcel data, reply;
+
+  data.writeInterfaceToken(IBluetooth::getInterfaceDescriptor());
+
+  remote()->transact(IBluetooth::IS_MULTI_ADVERTISEMENT_SUPPORTED_TRANSACTION,
+                     data, &reply);
+
+  return reply.readInt32();
+}
+
+sp<IBluetoothLowEnergy> BpBluetooth::GetLowEnergyInterface() {
+  Parcel data, reply;
+
+  data.writeInterfaceToken(IBluetooth::getInterfaceDescriptor());
+
+  remote()->transact(IBluetooth::GET_LOW_ENERGY_INTERFACE_TRANSACTION,
+                     data, &reply);
+
+  return interface_cast<IBluetoothLowEnergy>(reply.readStrongBinder());
+}
+
+sp<IBluetoothGattClient> BpBluetooth::GetGattClientInterface() {
+  Parcel data, reply;
+
+  data.writeInterfaceToken(IBluetooth::getInterfaceDescriptor());
+
+  remote()->transact(IBluetooth::GET_GATT_CLIENT_INTERFACE_TRANSACTION,
+                     data, &reply);
+
+  return interface_cast<IBluetoothGattClient>(reply.readStrongBinder());
+}
+
+sp<IBluetoothGattServer> BpBluetooth::GetGattServerInterface() {
+  Parcel data, reply;
+
+  data.writeInterfaceToken(IBluetooth::getInterfaceDescriptor());
+
+  remote()->transact(IBluetooth::GET_GATT_SERVER_INTERFACE_TRANSACTION,
+                     data, &reply);
+
+  return interface_cast<IBluetoothGattServer>(reply.readStrongBinder());
+}
+
+IMPLEMENT_META_INTERFACE(Bluetooth, IBluetooth::kServiceName);
+
+}  // namespace binder
+}  // namespace ipc
diff --git a/rtkbt/code/bt/service/common/bluetooth/binder/IBluetooth.h b/rtkbt/code/bt/service/common/bluetooth/binder/IBluetooth.h
new file mode 100755
index 0000000..ad1d33c
--- /dev/null
+++ b/rtkbt/code/bt/service/common/bluetooth/binder/IBluetooth.h
@@ -0,0 +1,212 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#pragma once
+
+#include <string>
+#include <vector>
+
+#include <base/macros.h>
+#include <binder/IBinder.h>
+#include <binder/IInterface.h>
+
+#include <bluetooth/binder/IBluetoothCallback.h>
+#include <bluetooth/binder/IBluetoothGattClient.h>
+#include <bluetooth/binder/IBluetoothGattServer.h>
+#include <bluetooth/binder/IBluetoothLowEnergy.h>
+#include <bluetooth/uuid.h>
+
+namespace ipc {
+namespace binder {
+
+// This class defines the Binder IPC interface for accessing the Bluetooth
+// service. This class was written based on the corresponding AIDL file at
+// /frameworks/base/core/java/android/bluetooth/IBluetooth.aidl.
+//
+// NOTE: KEEP THIS FILE UP-TO-DATE with the corresponding AIDL, otherwise this
+// won't be compatible with the Android framework.
+class IBluetooth : public android::IInterface {
+ public:
+  DECLARE_META_INTERFACE(Bluetooth);
+
+  static const char kServiceName[];
+
+  // Transaction codes for interface methods.
+  enum {
+    IS_ENABLED_TRANSACTION = android::IBinder::FIRST_CALL_TRANSACTION,
+    GET_STATE_TRANSACTION,
+    ENABLE_TRANSACTION,
+    ENABLE_NO_AUTO_CONNECT_TRANSACTION,
+    DISABLE_TRANSACTION,
+
+    GET_ADDRESS_TRANSACTION,
+    GET_UUIDS_TRANSACTION,  // TODO(armansito): Support this
+    SET_NAME_TRANSACTION,
+    GET_NAME_TRANSACTION,
+
+    // TODO(armansito): Support the functions below.
+
+    GET_SCAN_MODE_TRANSACTION,
+    SET_SCAN_MODE_TRANSACTION,
+
+    GET_DISCOVERABLE_TIMEOUT_TRANSACTION,
+    SET_DISCOVERABLE_TIMEOUT_TRANSACTION,
+
+    START_DISCOVERY_TRANSACTION,
+    CANCEL_DISCOVERY_TRANSACTION,
+    IS_DISCOVERING_TRANSACTION,
+
+    GET_ADAPTER_CONNECTION_STATE_TRANSACTION,
+    GET_PROFILE_CONNECTION_STATE_TRANSACTION,
+
+    GET_BONDED_DEVICES_TRANSACTION,
+    CREATE_BOND_TRANSACTION,
+    CANCEL_BOND_PROCESS_TRANSACTION,
+    REMOVE_BOND_TRANSACTION,
+    GET_BOND_STATE_TRANSACTION,
+    GET_CONNECTION_STATE_TRANSACTION,
+
+    GET_REMOTE_NAME_TRANSACTION,
+    GET_REMOTE_TYPE_TRANSACTION,
+    GET_REMOTE_ALIAS_TRANSACTION,
+    SET_REMOTE_ALIAS_TRANSACTION,
+    GET_REMOTE_CLASS_TRANSACTION,
+    GET_REMOTE_UUIDS_TRANSACTION,
+    FETCH_REMOTE_UUIDS_TRANSACTION,
+    SDP_SEARCH_TRANSACTION,
+
+    SET_PIN_TRANSACTION,
+    SET_PASSKEY_TRANSACTION,
+    SET_PAIRING_CONFIRMATION_TRANSACTION,
+
+    GET_PHONEBOOK_ACCESS_PERMISSION_TRANSACTION,
+    SET_PHONEBOOK_ACCESS_PERMISSION_TRANSACTION,
+    GET_MESSAGE_ACCESS_PERMISSION_TRANSACTION,
+    SET_MESSAGE_ACCESS_PERMISSION_TRANSACTION,
+    GET_SIM_ACCESS_PERMISSION_TRANSACTION,
+    SET_SIM_ACCESS_PERMISSION_TRANSACTION,
+
+    SEND_CONNECTION_STATE_CHANGE_TRANSACTION,
+
+    REGISTER_CALLBACK_TRANSACTION,
+    UNREGISTER_CALLBACK_TRANSACTION,
+
+    CONNECT_SOCKET_TRANSACTION,
+    CREATE_SOCKET_CHANNEL_TRANSACTION,
+
+    CONFIG_HCI_SNOOP_LOG,
+    FACTORY_RESET_TRANSACTION,
+
+    IS_MULTI_ADVERTISEMENT_SUPPORTED_TRANSACTION,
+    IS_PERIPHERAL_MODE_SUPPORTED_TRANSACTION,
+    IS_OFFLOADED_FILTERING_SUPPORTED_TRANSACTION,
+    IS_OFFLOADED_SCAN_BATCHING_SUPPORTED_TRANSACTION,
+    IS_ACTIVITY_AND_ENERGY_REPORTING_SUPPORTED_TRANSACTION,
+    GET_ACTIVITY_ENERGY_INFO_FROM_CONTROLLER_TRANSACTION,
+    REPORT_ACTIVITY_INFO_TRANSACTION,
+
+    ON_LE_SERVICE_UP_TRANSACTION,
+    ON_BR_EDR_DOWN_TRANSACTION,
+
+    GET_LOW_ENERGY_INTERFACE_TRANSACTION,
+    GET_GATT_CLIENT_INTERFACE_TRANSACTION,
+    GET_GATT_SERVER_INTERFACE_TRANSACTION,
+  };
+
+  // Returns a handle to the IBluetooth Binder from the Android ServiceManager.
+  // Binder client code can use this to make calls to the service.
+  static android::sp<IBluetooth> getClientInterface();
+
+  // Methods declared in IBluetooth.aidl.
+
+  virtual bool IsEnabled() = 0;
+  virtual int GetState() = 0;
+  virtual bool Enable(bool start_restricted) = 0;
+  virtual bool EnableNoAutoConnect() = 0;
+  virtual bool Disable() = 0;
+
+  virtual std::string GetAddress() = 0;
+  virtual std::vector<bluetooth::UUID> GetUUIDs() = 0;
+  virtual bool SetName(const std::string& name) = 0;
+  virtual std::string GetName() = 0;
+
+  virtual void RegisterCallback(
+      const android::sp<IBluetoothCallback>& callback) = 0;
+  virtual void UnregisterCallback(
+      const android::sp<IBluetoothCallback>& callback) = 0;
+
+  virtual bool IsMultiAdvertisementSupported() = 0;
+
+  virtual android::sp<IBluetoothLowEnergy> GetLowEnergyInterface() = 0;
+  virtual android::sp<IBluetoothGattClient> GetGattClientInterface() = 0;
+  virtual android::sp<IBluetoothGattServer> GetGattServerInterface() = 0;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(IBluetooth);
+};
+
+// The Binder server interface to IBluetooth. A class that implements IBluetooth
+// must inherit from this class.
+class BnBluetooth : public android::BnInterface<IBluetooth> {
+ public:
+  BnBluetooth() = default;
+  virtual ~BnBluetooth() = default;
+
+ private:
+  virtual android::status_t onTransact(
+      uint32_t code,
+      const android::Parcel& data,
+      android::Parcel* reply,
+      uint32_t flags = 0);
+
+  DISALLOW_COPY_AND_ASSIGN(BnBluetooth);
+};
+
+// The Binder client interface to IBluetooth.
+class BpBluetooth : public android::BpInterface<IBluetooth> {
+ public:
+  explicit BpBluetooth(const android::sp<android::IBinder>& impl);
+  virtual ~BpBluetooth() = default;
+
+  // IBluetooth overrides:
+  bool IsEnabled() override;
+  int GetState() override;
+  bool Enable(bool start_restricted) override;
+  bool EnableNoAutoConnect() override;
+  bool Disable() override;
+
+  std::string GetAddress() override;
+  std::vector<bluetooth::UUID> GetUUIDs() override;
+  bool SetName(const std::string& name) override;
+  std::string GetName() override;
+
+  void RegisterCallback(
+      const android::sp<IBluetoothCallback>& callback) override;
+  void UnregisterCallback(
+      const android::sp<IBluetoothCallback>& callback) override;
+
+  bool IsMultiAdvertisementSupported() override;
+
+  android::sp<IBluetoothLowEnergy> GetLowEnergyInterface() override;
+  android::sp<IBluetoothGattClient> GetGattClientInterface() override;
+  android::sp<IBluetoothGattServer> GetGattServerInterface() override;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(BpBluetooth);
+};
+
+}  // namespace binder
+}  // namespace ipc
diff --git a/rtkbt/code/bt/service/common/bluetooth/binder/IBluetoothCallback.cpp b/rtkbt/code/bt/service/common/bluetooth/binder/IBluetoothCallback.cpp
new file mode 100755
index 0000000..65f17e4
--- /dev/null
+++ b/rtkbt/code/bt/service/common/bluetooth/binder/IBluetoothCallback.cpp
@@ -0,0 +1,86 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#include "service/common/bluetooth/binder/IBluetoothCallback.h"
+
+#include <base/logging.h>
+#include <binder/Parcel.h>
+
+using android::IBinder;
+using android::Parcel;
+using android::sp;
+using android::status_t;
+
+namespace ipc {
+namespace binder {
+
+// static
+const char IBluetoothCallback::kServiceName[] =
+    "bluetooth-callback-service";
+
+// BnBluetoothCallback (server) implementation
+// ========================================================
+
+status_t BnBluetoothCallback::onTransact(
+    uint32_t code,
+    const Parcel& data,
+    Parcel* reply,
+    uint32_t flags) {
+  VLOG(2) << "IBluetoothCallback transaction: " << code;
+  if (!data.checkInterface(this))
+    return android::PERMISSION_DENIED;
+
+  switch (code) {
+    case ON_BLUETOOTH_STATE_CHANGE_TRANSACTION: {
+      int prev_state, new_state;
+      if (data.readInt32(&prev_state) != android::NO_ERROR ||
+          data.readInt32(&new_state) != android::NO_ERROR)
+        return android::NOT_ENOUGH_DATA;
+
+      OnBluetoothStateChange(
+          static_cast<bluetooth::AdapterState>(prev_state),
+          static_cast<bluetooth::AdapterState>(new_state));
+      return android::NO_ERROR;
+    }
+    default:
+      return BBinder::onTransact(code, data, reply, flags);
+  }
+}
+
+// BpBluetoothCallback (client) implementation
+// ========================================================
+
+BpBluetoothCallback::BpBluetoothCallback(const sp<IBinder>& impl)
+  : BpInterface<IBluetoothCallback>(impl) {
+}
+
+void BpBluetoothCallback::OnBluetoothStateChange(
+    bluetooth::AdapterState prev_state,
+    bluetooth::AdapterState new_state) {
+  Parcel data, reply;
+
+  data.writeInterfaceToken(IBluetoothCallback::getInterfaceDescriptor());
+  data.writeInt32(prev_state);
+  data.writeInt32(new_state);
+
+  remote()->transact(IBluetoothCallback::ON_BLUETOOTH_STATE_CHANGE_TRANSACTION,
+                     data, &reply);
+}
+
+IMPLEMENT_META_INTERFACE(BluetoothCallback, IBluetoothCallback::kServiceName);
+
+}  // namespace binder
+}  // namespace ipc
diff --git a/rtkbt/code/bt/service/common/bluetooth/binder/IBluetoothCallback.h b/rtkbt/code/bt/service/common/bluetooth/binder/IBluetoothCallback.h
new file mode 100755
index 0000000..e62cf3e
--- /dev/null
+++ b/rtkbt/code/bt/service/common/bluetooth/binder/IBluetoothCallback.h
@@ -0,0 +1,87 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#pragma once
+
+#include <base/macros.h>
+#include <binder/IBinder.h>
+#include <binder/IInterface.h>
+
+#include <bluetooth/adapter_state.h>
+
+namespace ipc {
+namespace binder {
+
+// This class defines the Binder IPC interface for receiving adapter state
+// updates from the Bluetooth service. This class was written based on the
+// corresponding AIDL file at
+// /frameworks/base/core/java/android/bluetooth/IBluetoothCallback.aidl.
+//
+// NOTE: KEEP THIS FILE UP-TO-DATE with the corresponding AIDL, otherwise this
+// won't be compatible with the Android framework.
+class IBluetoothCallback : public android::IInterface {
+ public:
+  DECLARE_META_INTERFACE(BluetoothCallback);
+
+  static const char kServiceName[];
+
+  // Transaction codes for interface methods.
+  enum {
+    ON_BLUETOOTH_STATE_CHANGE_TRANSACTION =
+        android::IBinder::FIRST_CALL_TRANSACTION,
+  };
+
+  virtual void OnBluetoothStateChange(
+      bluetooth::AdapterState prev_state,
+      bluetooth::AdapterState new_state) = 0;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(IBluetoothCallback);
+};
+
+// TODO(armansito): Implement notification for when the process dies.
+
+// The Binder server interface to IBluetoothCallback. A class that implements
+// IBluetoothCallback must inherit from this class.
+class BnBluetoothCallback : public android::BnInterface<IBluetoothCallback> {
+ public:
+  BnBluetoothCallback() = default;
+  virtual ~BnBluetoothCallback() = default;
+
+ private:
+  virtual android::status_t onTransact(
+      uint32_t code,
+      const android::Parcel& data,
+      android::Parcel* reply,
+      uint32_t flags = 0);
+};
+
+// The Binder client interface to IBluetoothCallback.
+class BpBluetoothCallback : public android::BpInterface<IBluetoothCallback> {
+ public:
+  BpBluetoothCallback(const android::sp<android::IBinder>& impl);
+  virtual ~BpBluetoothCallback() = default;
+
+  // IBluetoothCallback override:
+  void OnBluetoothStateChange(bluetooth::AdapterState prev_state,
+                              bluetooth::AdapterState new_state) override;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(BpBluetoothCallback);
+};
+
+}  // namespace binder
+}  // namespace ipc
diff --git a/rtkbt/code/bt/service/common/bluetooth/binder/IBluetoothGattClient.cpp b/rtkbt/code/bt/service/common/bluetooth/binder/IBluetoothGattClient.cpp
new file mode 100755
index 0000000..0e10f02
--- /dev/null
+++ b/rtkbt/code/bt/service/common/bluetooth/binder/IBluetoothGattClient.cpp
@@ -0,0 +1,109 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#include "service/common/bluetooth/binder/IBluetoothGattClient.h"
+
+#include <base/logging.h>
+#include <binder/Parcel.h>
+
+using android::IBinder;
+using android::interface_cast;
+using android::Parcel;
+using android::sp;
+using android::status_t;
+
+namespace ipc {
+namespace binder {
+
+// static
+const char IBluetoothGattClient::kServiceName[] =
+    "bluetooth-gatt-client-service";
+
+// BnBluetoothGattClient (server) implementation
+// ========================================================
+
+status_t BnBluetoothGattClient::onTransact(
+    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) {
+  VLOG(2) << "IBluetoothGattClient: " << code;
+  if (!data.checkInterface(this))
+    return android::PERMISSION_DENIED;
+
+  switch (code) {
+  case REGISTER_CLIENT_TRANSACTION: {
+    sp<IBinder> callback = data.readStrongBinder();
+    bool result = RegisterClient(
+        interface_cast<IBluetoothGattClientCallback>(callback));
+    reply->writeInt32(result);
+    return android::NO_ERROR;
+  }
+  case UNREGISTER_CLIENT_TRANSACTION: {
+    int client_id = data.readInt32();
+    UnregisterClient(client_id);
+    return android::NO_ERROR;
+  }
+  case UNREGISTER_ALL_TRANSACTION: {
+    UnregisterAll();
+    return android::NO_ERROR;
+  }
+  default:
+    return BBinder::onTransact(code, data, reply, flags);
+  }
+}
+
+// BpBluetoothGattClient (client) implementation
+// ========================================================
+
+BpBluetoothGattClient::BpBluetoothGattClient(const sp<IBinder>& impl)
+    : BpInterface<IBluetoothGattClient>(impl) {
+}
+
+bool BpBluetoothGattClient::RegisterClient(
+    const android::sp<IBluetoothGattClientCallback>& callback) {
+  Parcel data, reply;
+
+  data.writeInterfaceToken(IBluetoothGattClient::getInterfaceDescriptor());
+  data.writeStrongBinder(IInterface::asBinder(callback.get()));
+
+  remote()->transact(IBluetoothGattClient::REGISTER_CLIENT_TRANSACTION,
+                     data, &reply);
+
+  return reply.readInt32();
+}
+
+void BpBluetoothGattClient::UnregisterClient(int client_id) {
+  Parcel data, reply;
+
+  data.writeInterfaceToken(IBluetoothGattClient::getInterfaceDescriptor());
+  data.writeInt32(client_id);
+
+  remote()->transact(IBluetoothGattClient::UNREGISTER_CLIENT_TRANSACTION,
+                     data, &reply);
+}
+
+void BpBluetoothGattClient::UnregisterAll() {
+  Parcel data, reply;
+
+  data.writeInterfaceToken(IBluetoothGattClient::getInterfaceDescriptor());
+
+  remote()->transact(IBluetoothGattClient::UNREGISTER_ALL_TRANSACTION,
+                     data, &reply);
+}
+
+IMPLEMENT_META_INTERFACE(BluetoothGattClient,
+                         IBluetoothGattClient::kServiceName);
+
+}  // namespace binder
+}  // namespace ipc
diff --git a/rtkbt/code/bt/service/common/bluetooth/binder/IBluetoothGattClient.h b/rtkbt/code/bt/service/common/bluetooth/binder/IBluetoothGattClient.h
new file mode 100755
index 0000000..9d596d7
--- /dev/null
+++ b/rtkbt/code/bt/service/common/bluetooth/binder/IBluetoothGattClient.h
@@ -0,0 +1,108 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#pragma once
+
+#include <string>
+
+#include <base/macros.h>
+#include <binder/IBinder.h>
+#include <binder/IInterface.h>
+
+#include <bluetooth/binder/IBluetoothGattClientCallback.h>
+#include <bluetooth/gatt_identifier.h>
+
+namespace ipc {
+namespace binder {
+
+// This class defines the Binder IPC interface for interacting with Bluetooth
+// GATT client-role features.
+// TODO(armansito): This class was written based on a new design doc proposal.
+// We need to add an AIDL for this to the framework code.
+//
+// NOTE: KEEP THIS FILE UP-TO-DATE with the corresponding AIDL, otherwise this
+// won't be compatible with the Android framework.
+class IBluetoothGattClient : public android::IInterface {
+ public:
+  DECLARE_META_INTERFACE(BluetoothGattClient);
+
+  static const char kServiceName[];
+
+  // Transaction codes for interface methods.
+  enum {
+    REGISTER_CLIENT_TRANSACTION = android::IBinder::FIRST_CALL_TRANSACTION,
+    UNREGISTER_CLIENT_TRANSACTION,
+    UNREGISTER_ALL_TRANSACTION,
+    REFRESH_DEVICE_TRANSACTION,
+    DISCOVER_SERVICES_TRANSACTION,
+    READ_CHARACTERISTIC_TRANSACTION,
+    WRITE_CHARACTERISTIC_TRANSACTION,
+    READ_DESCRIPTOR_TRANSACTION,
+    WRITE_DESCRIPTOR_TRANSACTION,
+    REGISTER_FOR_NOTIFICATIONS_TRANSACTION,
+    UNREGISTER_FOR_NOTIFICATIONS_TRANSACTION,
+    BEGIN_RELIABLE_WRITE_TRANSACTION,
+    END_RELIABLE_WRITE_TRANSACTION,
+  };
+
+  virtual bool RegisterClient(
+      const android::sp<IBluetoothGattClientCallback>& callback) = 0;
+  virtual void UnregisterClient(int client_id) = 0;
+  virtual void UnregisterAll() = 0;
+
+  // TODO(armansito): Complete interface definition.
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(IBluetoothGattClient);
+};
+
+// The Binder server interface to IBluetoothGattClient. A class that implements
+// IBluetoothGattClient must inherit from this class.
+class BnBluetoothGattClient
+    : public android::BnInterface<IBluetoothGattClient> {
+ public:
+  BnBluetoothGattClient() = default;
+  virtual ~BnBluetoothGattClient() = default;
+
+ private:
+  virtual android::status_t onTransact(
+      uint32_t code,
+      const android::Parcel& data,
+      android::Parcel* reply,
+      uint32_t flags = 0);
+
+  DISALLOW_COPY_AND_ASSIGN(BnBluetoothGattClient);
+};
+
+// The Binder client interface to IBluetoothGattClient.
+class BpBluetoothGattClient
+    : public android::BpInterface<IBluetoothGattClient> {
+ public:
+  explicit BpBluetoothGattClient(const android::sp<android::IBinder>& impl);
+  virtual ~BpBluetoothGattClient() = default;
+
+  // IBluetoothGattClient overrides:
+  bool RegisterClient(
+      const android::sp<IBluetoothGattClientCallback>& callback) override;
+  void UnregisterClient(int client_id) override;
+  void UnregisterAll() override;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(BpBluetoothGattClient);
+};
+
+}  // namespace binder
+}  // namespace ipc
diff --git a/rtkbt/code/bt/service/common/bluetooth/binder/IBluetoothGattClientCallback.cpp b/rtkbt/code/bt/service/common/bluetooth/binder/IBluetoothGattClientCallback.cpp
new file mode 100755
index 0000000..7a4896a
--- /dev/null
+++ b/rtkbt/code/bt/service/common/bluetooth/binder/IBluetoothGattClientCallback.cpp
@@ -0,0 +1,85 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#include "service/common/bluetooth/binder/IBluetoothGattClientCallback.h"
+
+#include <base/logging.h>
+#include <binder/Parcel.h>
+
+using android::IBinder;
+using android::Parcel;
+using android::sp;
+using android::status_t;
+
+namespace ipc {
+namespace binder {
+
+// static
+const char IBluetoothGattClientCallback::kServiceName[] =
+    "bluetooth-gatt-client-callback-service";
+
+// BnBluetoothGattClientCallback (server) implementation
+// ========================================================
+
+status_t BnBluetoothGattClientCallback::onTransact(
+    uint32_t code,
+    const Parcel& data,
+    Parcel* reply,
+    uint32_t flags) {
+  VLOG(2) << "IBluetoothGattClientCallback: " << code;
+  if (!data.checkInterface(this))
+    return android::PERMISSION_DENIED;
+
+  switch (code) {
+  case ON_CLIENT_REGISTERED_TRANSACTION: {
+    int status = data.readInt32();
+    int client_id = data.readInt32();
+    OnClientRegistered(status, client_id);
+    return android::NO_ERROR;
+  }
+  default:
+    return BBinder::onTransact(code, data, reply, flags);
+  }
+}
+
+// BpBluetoothGattClientCallback (client) implementation
+// ========================================================
+
+BpBluetoothGattClientCallback::BpBluetoothGattClientCallback(
+    const sp<IBinder>& impl)
+    : BpInterface<IBluetoothGattClientCallback>(impl) {
+}
+
+void BpBluetoothGattClientCallback::OnClientRegistered(
+    int status, int client_id) {
+  Parcel data, reply;
+
+  data.writeInterfaceToken(
+      IBluetoothGattClientCallback::getInterfaceDescriptor());
+  data.writeInt32(status);
+  data.writeInt32(client_id);
+
+  remote()->transact(
+      IBluetoothGattClientCallback::ON_CLIENT_REGISTERED_TRANSACTION,
+      data, &reply,
+      IBinder::FLAG_ONEWAY);
+}
+
+IMPLEMENT_META_INTERFACE(BluetoothGattClientCallback,
+                         IBluetoothGattClientCallback::kServiceName);
+
+}  // namespace binder
+}  // namespace ipc
diff --git a/rtkbt/code/bt/service/common/bluetooth/binder/IBluetoothGattClientCallback.h b/rtkbt/code/bt/service/common/bluetooth/binder/IBluetoothGattClientCallback.h
new file mode 100755
index 0000000..226dc56
--- /dev/null
+++ b/rtkbt/code/bt/service/common/bluetooth/binder/IBluetoothGattClientCallback.h
@@ -0,0 +1,97 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#pragma once
+
+#include <base/macros.h>
+#include <binder/IBinder.h>
+#include <binder/IInterface.h>
+
+namespace ipc {
+namespace binder {
+
+// This class defines the Binder IPC interface for receiving callbacks related
+// to Bluetooth GATT client-role operations.
+// TODO(armansito): This class was written based on a new design doc proposal.
+// We need to add an AIDL for this to the framework code.
+//
+// NOTE: KEEP THIS FILE UP-TO-DATE with the corresponding AIDL, otherwise this
+// won't be compatible with the Android framework.
+/* oneway */ class IBluetoothGattClientCallback : public android::IInterface {
+ public:
+  DECLARE_META_INTERFACE(BluetoothGattClientCallback);
+
+  static const char kServiceName[];
+
+  // Transaction codes for interface methods.
+  enum {
+    ON_CLIENT_REGISTERED_TRANSACTION = android::IBinder::FIRST_CALL_TRANSACTION,
+    ON_GET_SERVICE_TRANSACTION,
+    ON_GET_INCLUDED_SERVICE_TRANSACTION,
+    ON_GET_CHARACTERISTIC_TRANSACTION,
+    ON_GET_DESCRIPTOR_TRANSACTION,
+    ON_SEARCH_COMPLETE_TRANSACTION,
+    ON_CHARACTERISTIC_READ_TRANSACTION,
+    ON_CHARACTERISTIC_WRITE_TRANSACTION,
+    ON_EXECUTE_WRITE_TRANSACTION,
+    ON_DESCRIPTOR_READ_TRANSACTION,
+    ON_DESCRIPTOR_WRITE_TRANSACTION,
+    ON_NOTIFY_TRANSACTION,
+  };
+
+  virtual void OnClientRegistered(int status, int client_id) = 0;
+
+  // TODO(armansito): Complete interface definition.
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(IBluetoothGattClientCallback);
+};
+
+// The Binder server interface to IBluetoothGattClientCallback. A class that
+// implements IBluetoothGattClientCallback must inherit from this class.
+class BnBluetoothGattClientCallback
+    : public android::BnInterface<IBluetoothGattClientCallback> {
+ public:
+  BnBluetoothGattClientCallback() = default;
+  virtual ~BnBluetoothGattClientCallback() = default;
+
+ private:
+  virtual android::status_t onTransact(
+      uint32_t code,
+      const android::Parcel& data,
+      android::Parcel* reply,
+      uint32_t flags = 0);
+
+  DISALLOW_COPY_AND_ASSIGN(BnBluetoothGattClientCallback);
+};
+
+// The Binder client interface to IBluetoothGattClientCallback.
+class BpBluetoothGattClientCallback
+    : public android::BpInterface<IBluetoothGattClientCallback> {
+ public:
+  explicit BpBluetoothGattClientCallback(
+      const android::sp<android::IBinder>& impl);
+  virtual ~BpBluetoothGattClientCallback() = default;
+
+  // IBluetoothGattClientCallback overrides:
+  void OnClientRegistered(int status, int server_if) override;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(BpBluetoothGattClientCallback);
+};
+
+}  // namespace binder
+}  // namespace ipc
diff --git a/rtkbt/code/bt/service/common/bluetooth/binder/IBluetoothGattServer.cpp b/rtkbt/code/bt/service/common/bluetooth/binder/IBluetoothGattServer.cpp
new file mode 100755
index 0000000..5cc8468
--- /dev/null
+++ b/rtkbt/code/bt/service/common/bluetooth/binder/IBluetoothGattServer.cpp
@@ -0,0 +1,331 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#include "service/common/bluetooth/binder/IBluetoothGattServer.h"
+
+#include <base/logging.h>
+#include <binder/Parcel.h>
+
+#include "service/common/bluetooth/binder/parcel_helpers.h"
+
+using android::IBinder;
+using android::interface_cast;
+using android::Parcel;
+using android::sp;
+using android::status_t;
+
+namespace ipc {
+namespace binder {
+
+// static
+const char IBluetoothGattServer::kServiceName[] =
+    "bluetooth-gatt-server-service";
+
+// BnBluetoothGattServer (server) implementation
+// ========================================================
+
+status_t BnBluetoothGattServer::onTransact(
+    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) {
+  VLOG(2) << "IBluetoothGattServer: " << code;
+  if (!data.checkInterface(this))
+    return android::PERMISSION_DENIED;
+
+  switch (code) {
+  case REGISTER_SERVER_TRANSACTION: {
+    sp<IBinder> callback = data.readStrongBinder();
+    bool result = RegisterServer(
+        interface_cast<IBluetoothGattServerCallback>(callback));
+    reply->writeInt32(result);
+    return android::NO_ERROR;
+  }
+  case UNREGISTER_SERVER_TRANSACTION: {
+    int server_if = data.readInt32();
+    UnregisterServer(server_if);
+    return android::NO_ERROR;
+  }
+  case UNREGISTER_ALL_TRANSACTION: {
+    UnregisterAll();
+    return android::NO_ERROR;
+  }
+  case BEGIN_SERVICE_DECLARATION_TRANSACTION: {
+    int server_if = data.readInt32();
+    bool is_primary = data.readInt32();
+    auto uuid = CreateUUIDFromParcel(data);
+    CHECK(uuid);
+
+    std::unique_ptr<bluetooth::GattIdentifier> out_id;
+    bool result = BeginServiceDeclaration(
+        server_if, is_primary, *uuid, &out_id);
+
+    reply->writeInt32(result);
+
+    if (result) {
+      CHECK(out_id);
+      WriteGattIdentifierToParcel(*out_id, reply);
+    }
+
+    return android::NO_ERROR;
+  }
+  case ADD_CHARACTERISTIC_TRANSACTION: {
+    int server_if = data.readInt32();
+    auto uuid = CreateUUIDFromParcel(data);
+    CHECK(uuid);
+    int properties = data.readInt32();
+    int permissions = data.readInt32();
+
+    std::unique_ptr<bluetooth::GattIdentifier> out_id;
+    bool result = AddCharacteristic(
+        server_if, *uuid, properties, permissions, &out_id);
+
+    reply->writeInt32(result);
+
+    if (result) {
+      CHECK(out_id);
+      WriteGattIdentifierToParcel(*out_id, reply);
+    }
+
+    return android::NO_ERROR;
+  }
+  case ADD_DESCRIPTOR_TRANSACTION: {
+    int server_if = data.readInt32();
+    auto uuid = CreateUUIDFromParcel(data);
+    CHECK(uuid);
+    int permissions = data.readInt32();
+
+    std::unique_ptr<bluetooth::GattIdentifier> out_id;
+    bool result = AddDescriptor(server_if, *uuid, permissions, &out_id);
+
+    reply->writeInt32(result);
+
+    if (result) {
+      CHECK(out_id);
+      WriteGattIdentifierToParcel(*out_id, reply);
+    }
+
+    return android::NO_ERROR;
+  }
+  case END_SERVICE_DECLARATION_TRANSACTION: {
+    int server_if = data.readInt32();
+    bool result = EndServiceDeclaration(server_if);
+    reply->writeInt32(result);
+    return android::NO_ERROR;
+  }
+  case SEND_RESPONSE_TRANSACTION: {
+    int server_if = data.readInt32();
+    std::string device_address = data.readCString();
+    int request_id = data.readInt32();
+    int status = data.readInt32();
+    int offset = data.readInt32();
+
+    std::unique_ptr<std::vector<uint8_t>> value;
+    data.readByteVector(&value);
+    CHECK(value.get());
+
+    bool result = SendResponse(
+        server_if, device_address, request_id, status, offset, *value);
+
+    reply->writeInt32(result);
+
+    return android::NO_ERROR;
+  }
+  case SEND_NOTIFICATION_TRANSACTION: {
+    int server_if = data.readInt32();
+    std::string device_address = data.readCString();
+    auto char_id = CreateGattIdentifierFromParcel(data);
+    CHECK(char_id);
+    bool confirm = data.readInt32();
+
+    std::unique_ptr<std::vector<uint8_t>> value;
+    data.readByteVector(&value);
+    CHECK(value.get());
+
+    bool result = SendNotification(server_if, device_address, *char_id, confirm,
+                                   *value);
+
+    reply->writeInt32(result);
+
+    return android::NO_ERROR;
+  }
+  default:
+    return BBinder::onTransact(code, data, reply, flags);
+  }
+}
+
+// BpBluetoothGattServer (client) implementation
+// ========================================================
+
+BpBluetoothGattServer::BpBluetoothGattServer(const sp<IBinder>& impl)
+    : BpInterface<IBluetoothGattServer>(impl) {
+}
+
+bool BpBluetoothGattServer::RegisterServer(
+    const sp<IBluetoothGattServerCallback>& callback) {
+  Parcel data, reply;
+
+  data.writeInterfaceToken(IBluetoothGattServer::getInterfaceDescriptor());
+  data.writeStrongBinder(IInterface::asBinder(callback.get()));
+
+  remote()->transact(IBluetoothGattServer::REGISTER_SERVER_TRANSACTION,
+                     data, &reply);
+
+  return reply.readInt32();
+}
+
+void BpBluetoothGattServer::UnregisterServer(int server_if) {
+  Parcel data, reply;
+
+  data.writeInterfaceToken(IBluetoothGattServer::getInterfaceDescriptor());
+  data.writeInt32(server_if);
+
+  remote()->transact(IBluetoothGattServer::UNREGISTER_SERVER_TRANSACTION,
+                     data, &reply);
+}
+
+void BpBluetoothGattServer::UnregisterAll() {
+  Parcel data, reply;
+
+  data.writeInterfaceToken(IBluetoothGattServer::getInterfaceDescriptor());
+
+  remote()->transact(IBluetoothGattServer::UNREGISTER_ALL_TRANSACTION,
+                     data, &reply);
+}
+
+bool BpBluetoothGattServer::BeginServiceDeclaration(
+    int server_if, bool is_primary, const bluetooth::UUID& uuid,
+    std::unique_ptr<bluetooth::GattIdentifier>* out_id) {
+  CHECK(out_id);
+  Parcel data, reply;
+
+  data.writeInterfaceToken(IBluetoothGattServer::getInterfaceDescriptor());
+  data.writeInt32(server_if);
+  data.writeInt32(is_primary);
+  WriteUUIDToParcel(uuid, &data);
+
+  remote()->transact(
+      IBluetoothGattServer::BEGIN_SERVICE_DECLARATION_TRANSACTION,
+      data, &reply);
+
+  bool result = reply.readInt32();
+  if (result)
+    *out_id = CreateGattIdentifierFromParcel(reply);
+
+  return result;
+}
+
+bool BpBluetoothGattServer::AddCharacteristic(
+    int server_if, const bluetooth::UUID& uuid,
+    int properties, int permissions,
+    std::unique_ptr<bluetooth::GattIdentifier>* out_id) {
+  CHECK(out_id);
+  Parcel data, reply;
+
+  data.writeInterfaceToken(IBluetoothGattServer::getInterfaceDescriptor());
+  data.writeInt32(server_if);
+  WriteUUIDToParcel(uuid, &data);
+  data.writeInt32(properties);
+  data.writeInt32(permissions);
+
+  remote()->transact(IBluetoothGattServer::ADD_CHARACTERISTIC_TRANSACTION,
+                     data, &reply);
+
+  bool result = reply.readInt32();
+  if (result)
+    *out_id = CreateGattIdentifierFromParcel(reply);
+
+  return result;
+}
+
+bool BpBluetoothGattServer::AddDescriptor(
+    int server_if, const bluetooth::UUID& uuid, int permissions,
+    std::unique_ptr<bluetooth::GattIdentifier>* out_id) {
+  CHECK(out_id);
+  Parcel data, reply;
+
+  data.writeInterfaceToken(IBluetoothGattServer::getInterfaceDescriptor());
+  data.writeInt32(server_if);
+  WriteUUIDToParcel(uuid, &data);
+  data.writeInt32(permissions);
+
+  remote()->transact(IBluetoothGattServer::ADD_DESCRIPTOR_TRANSACTION,
+                     data, &reply);
+
+  bool result = reply.readInt32();
+  if (result)
+    *out_id = CreateGattIdentifierFromParcel(reply);
+
+  return result;
+}
+
+bool BpBluetoothGattServer::EndServiceDeclaration(int server_if) {
+  Parcel data, reply;
+
+  data.writeInterfaceToken(IBluetoothGattServer::getInterfaceDescriptor());
+  data.writeInt32(server_if);
+
+  remote()->transact(IBluetoothGattServer::END_SERVICE_DECLARATION_TRANSACTION,
+                     data, &reply);
+
+  return reply.readInt32();
+}
+
+bool BpBluetoothGattServer::SendResponse(
+    int server_if,
+    const std::string& device_address,
+    int request_id,
+    int status, int offset,
+    const std::vector<uint8_t>& value) {
+  Parcel data, reply;
+
+  data.writeInterfaceToken(IBluetoothGattServer::getInterfaceDescriptor());
+  data.writeInt32(server_if);
+  data.writeCString(device_address.c_str());
+  data.writeInt32(request_id);
+  data.writeInt32(status);
+  data.writeInt32(offset);
+  data.writeByteVector(value);
+
+  remote()->transact(IBluetoothGattServer::SEND_RESPONSE_TRANSACTION,
+                     data, &reply);
+
+  return reply.readInt32();
+}
+
+bool BpBluetoothGattServer::SendNotification(
+    int server_if,
+    const std::string& device_address,
+    const bluetooth::GattIdentifier& characteristic_id,
+    bool confirm,
+    const std::vector<uint8_t>& value) {
+  Parcel data, reply;
+
+  data.writeInterfaceToken(IBluetoothGattServer::getInterfaceDescriptor());
+  data.writeInt32(server_if);
+  data.writeCString(device_address.c_str());
+  WriteGattIdentifierToParcel(characteristic_id, &data);
+  data.writeInt32(confirm);
+  data.writeByteVector(value);
+
+  remote()->transact(IBluetoothGattServer::SEND_NOTIFICATION_TRANSACTION,
+                     data, &reply);
+
+  return reply.readInt32();
+}
+
+IMPLEMENT_META_INTERFACE(BluetoothGattServer,
+                         IBluetoothGattServer::kServiceName);
+
+}  // namespace binder
+}  // namespace ipc
diff --git a/rtkbt/code/bt/service/common/bluetooth/binder/IBluetoothGattServer.h b/rtkbt/code/bt/service/common/bluetooth/binder/IBluetoothGattServer.h
new file mode 100755
index 0000000..4a841fd
--- /dev/null
+++ b/rtkbt/code/bt/service/common/bluetooth/binder/IBluetoothGattServer.h
@@ -0,0 +1,158 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#pragma once
+
+#include <cstdint>
+#include <memory>
+#include <vector>
+
+#include <base/macros.h>
+#include <binder/IBinder.h>
+#include <binder/IInterface.h>
+
+#include <bluetooth/binder/IBluetoothGattServerCallback.h>
+#include <bluetooth/gatt_identifier.h>
+
+namespace ipc {
+namespace binder {
+
+// This class defines the Binder IPC interface for interacting with Bluetooth
+// GATT server-role features.
+// TODO(armansito): This class was written based on a new design doc proposal.
+// We need to add an AIDL for this to the framework code.
+//
+// NOTE: KEEP THIS FILE UP-TO-DATE with the corresponding AIDL, otherwise this
+// won't be compatible with the Android framework.
+class IBluetoothGattServer : public android::IInterface {
+ public:
+  DECLARE_META_INTERFACE(BluetoothGattServer);
+
+  static const char kServiceName[];
+
+  // Transaction codes for interface methods.
+  enum {
+    REGISTER_SERVER_TRANSACTION = android::IBinder::FIRST_CALL_TRANSACTION,
+    UNREGISTER_SERVER_TRANSACTION,
+    UNREGISTER_ALL_TRANSACTION,
+    BEGIN_SERVICE_DECLARATION_TRANSACTION,
+    ADD_INCLUDED_SERVICE_TRANSACTION,
+    ADD_CHARACTERISTIC_TRANSACTION,
+    ADD_DESCRIPTOR_TRANSACTION,
+    END_SERVICE_DECLARATION_TRANSACTION,
+    REMOVE_SERVICE_TRANSACTION,
+    CLEAR_SERVICES_TRANSACTION,
+    SEND_RESPONSE_TRANSACTION,
+    SEND_NOTIFICATION_TRANSACTION,
+  };
+
+  virtual bool RegisterServer(
+      const android::sp<IBluetoothGattServerCallback>& callback) = 0;
+  virtual void UnregisterServer(int server_if) = 0;
+  virtual void UnregisterAll() = 0;
+
+  virtual bool BeginServiceDeclaration(
+      int server_if, bool is_primary, const bluetooth::UUID& uuid,
+      std::unique_ptr<bluetooth::GattIdentifier>* out_id) = 0;
+  virtual bool AddCharacteristic(
+      int server_if, const bluetooth::UUID& uuid,
+      int properties, int permissions,
+      std::unique_ptr<bluetooth::GattIdentifier>* out_id) = 0;
+  virtual bool AddDescriptor(
+      int server_if, const bluetooth::UUID& uuid, int permissions,
+      std::unique_ptr<bluetooth::GattIdentifier>* out_id) = 0;
+  virtual bool EndServiceDeclaration(int server_if) = 0;
+
+  virtual bool SendResponse(
+      int server_if,
+      const std::string& device_address,
+      int request_id,
+      int status, int offset,
+      const std::vector<uint8_t>& value) = 0;
+
+  virtual bool SendNotification(
+      int server_if,
+      const std::string& device_address,
+      const bluetooth::GattIdentifier& characteristic_id,
+      bool confirm,
+      const std::vector<uint8_t>& value) = 0;
+
+  // TODO(armansito): Complete the API definition.
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(IBluetoothGattServer);
+};
+
+// The Binder server interface to IBluetoothGattServer. A class that implements
+// IBluetoothGattServer must inherit from this class.
+class BnBluetoothGattServer
+    : public android::BnInterface<IBluetoothGattServer> {
+ public:
+  BnBluetoothGattServer() = default;
+  virtual ~BnBluetoothGattServer() = default;
+
+ private:
+  virtual android::status_t onTransact(
+      uint32_t code,
+      const android::Parcel& data,
+      android::Parcel* reply,
+      uint32_t flags = 0);
+
+  DISALLOW_COPY_AND_ASSIGN(BnBluetoothGattServer);
+};
+
+// The Binder client interface to IBluetoothGattServer.
+class BpBluetoothGattServer
+    : public android::BpInterface<IBluetoothGattServer> {
+ public:
+  explicit BpBluetoothGattServer(const android::sp<android::IBinder>& impl);
+  virtual ~BpBluetoothGattServer() = default;
+
+  // IBluetoothGattServer overrides:
+  bool RegisterServer(
+      const android::sp<IBluetoothGattServerCallback>& callback) override;
+  void UnregisterServer(int server_if) override;
+  void UnregisterAll() override;
+  bool BeginServiceDeclaration(
+      int server_if, bool is_primary, const bluetooth::UUID& uuid,
+      std::unique_ptr<bluetooth::GattIdentifier>* out_id) override;
+  bool AddCharacteristic(
+      int server_if, const bluetooth::UUID& uuid,
+      int properties, int permissions,
+      std::unique_ptr<bluetooth::GattIdentifier>* out_id) override;
+  bool AddDescriptor(
+      int server_if, const bluetooth::UUID& uuid, int permissions,
+      std::unique_ptr<bluetooth::GattIdentifier>* out_id) override;
+  bool EndServiceDeclaration(int server_if) override;
+  bool SendResponse(
+      int server_if,
+      const std::string& device_address,
+      int request_id,
+      int status, int offset,
+      const std::vector<uint8_t>& value) override;
+  bool SendNotification(
+      int server_if,
+      const std::string& device_address,
+      const bluetooth::GattIdentifier& characteristic_id,
+      bool confirm,
+      const std::vector<uint8_t>& value) override;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(BpBluetoothGattServer);
+};
+
+}  // namespace binder
+}  // namespace ipc
diff --git a/rtkbt/code/bt/service/common/bluetooth/binder/IBluetoothGattServerCallback.cpp b/rtkbt/code/bt/service/common/bluetooth/binder/IBluetoothGattServerCallback.cpp
new file mode 100755
index 0000000..2943fe9
--- /dev/null
+++ b/rtkbt/code/bt/service/common/bluetooth/binder/IBluetoothGattServerCallback.cpp
@@ -0,0 +1,301 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#include "service/common/bluetooth/binder/IBluetoothGattServerCallback.h"
+
+#include <base/logging.h>
+#include <binder/Parcel.h>
+
+#include "service/common/bluetooth/binder/parcel_helpers.h"
+
+using android::IBinder;
+using android::Parcel;
+using android::sp;
+using android::status_t;
+
+namespace ipc {
+namespace binder {
+
+// static
+const char IBluetoothGattServerCallback::kServiceName[] =
+    "bluetooth-gatt-server-callback-service";
+
+// BnBluetoothGattServerCallback (server) implementation
+// ========================================================
+
+status_t BnBluetoothGattServerCallback::onTransact(
+    uint32_t code,
+    const Parcel& data,
+    Parcel* reply,
+    uint32_t flags) {
+  VLOG(2) << "IBluetoothGattServerCallback: " << code;
+  if (!data.checkInterface(this))
+    return android::PERMISSION_DENIED;
+
+  switch (code) {
+  case ON_SERVER_REGISTERED_TRANSACTION: {
+    int status = data.readInt32();
+    int server_if = data.readInt32();
+    OnServerRegistered(status, server_if);
+    return android::NO_ERROR;
+  }
+  case ON_SERVICE_ADDED_TRANSACTION: {
+    int status = data.readInt32();
+    auto gatt_id = CreateGattIdentifierFromParcel(data);
+    CHECK(gatt_id);
+    OnServiceAdded(status, *gatt_id);
+    return android::NO_ERROR;
+  }
+  case ON_CHARACTERISTIC_READ_REQUEST_TRANSACTION: {
+    std::string device_address = data.readCString();
+    int request_id = data.readInt32();
+    int offset = data.readInt32();
+    bool is_long = data.readInt32();
+    auto char_id = CreateGattIdentifierFromParcel(data);
+    CHECK(char_id);
+    OnCharacteristicReadRequest(device_address, request_id, offset, is_long,
+                                *char_id);
+    return android::NO_ERROR;
+  }
+  case ON_DESCRIPTOR_READ_REQUEST_TRANSACTION: {
+    std::string device_address = data.readCString();
+    int request_id = data.readInt32();
+    int offset = data.readInt32();
+    bool is_long = data.readInt32();
+    auto desc_id = CreateGattIdentifierFromParcel(data);
+    CHECK(desc_id);
+    OnDescriptorReadRequest(device_address, request_id, offset, is_long,
+                            *desc_id);
+    return android::NO_ERROR;
+  }
+  case ON_CHARACTERISTIC_WRITE_REQUEST_TRANSACTION: {
+    std::string device_address = data.readCString();
+    int request_id = data.readInt32();
+    int offset = data.readInt32();
+    bool is_prep = data.readInt32();
+    bool need_rsp = data.readInt32();
+
+    std::unique_ptr<std::vector<uint8_t>> value;
+    data.readByteVector(&value);
+    CHECK(value.get());
+
+    auto char_id = CreateGattIdentifierFromParcel(data);
+    CHECK(char_id);
+
+    OnCharacteristicWriteRequest(device_address, request_id, offset, is_prep,
+                                 need_rsp, *value, *char_id);
+    return android::NO_ERROR;
+  }
+  case ON_DESCRIPTOR_WRITE_REQUEST_TRANSACTION: {
+    std::string device_address = data.readCString();
+    int request_id = data.readInt32();
+    int offset = data.readInt32();
+    bool is_prep = data.readInt32();
+    bool need_rsp = data.readInt32();
+
+    std::unique_ptr<std::vector<uint8_t>> value;
+    data.readByteVector(&value);
+    CHECK(value.get());
+
+    auto desc_id = CreateGattIdentifierFromParcel(data);
+    CHECK(desc_id);
+
+    OnDescriptorWriteRequest(device_address, request_id, offset, is_prep,
+                             need_rsp, *value, *desc_id);
+    return android::NO_ERROR;
+  }
+  case ON_EXECUTE_WRITE_REQUEST_TRANSACTION: {
+    std::string device_address = data.readCString();
+    int request_id = data.readInt32();
+    bool is_exec = data.readInt32();
+
+    OnExecuteWriteRequest(device_address, request_id, is_exec);
+    return android::NO_ERROR;
+  }
+  case ON_NOTIFICATION_SENT_TRANSACTION: {
+    std::string device_address = data.readCString();
+    int status = data.readInt32();
+
+    OnNotificationSent(device_address, status);
+    return android::NO_ERROR;
+  }
+  default:
+    return BBinder::onTransact(code, data, reply, flags);
+  }
+}
+
+// BpBluetoothGattServerCallback (client) implementation
+// ========================================================
+
+BpBluetoothGattServerCallback::BpBluetoothGattServerCallback(
+    const sp<IBinder>& impl)
+    : BpInterface<IBluetoothGattServerCallback>(impl) {
+}
+
+void BpBluetoothGattServerCallback::OnServerRegistered(
+    int status, int server_if) {
+  Parcel data, reply;
+
+  data.writeInterfaceToken(
+      IBluetoothGattServerCallback::getInterfaceDescriptor());
+  data.writeInt32(status);
+  data.writeInt32(server_if);
+
+  remote()->transact(
+      IBluetoothGattServerCallback::ON_SERVER_REGISTERED_TRANSACTION,
+      data, &reply,
+      IBinder::FLAG_ONEWAY);
+}
+
+void BpBluetoothGattServerCallback::OnServiceAdded(
+    int status,
+    const bluetooth::GattIdentifier& service_id) {
+  Parcel data, reply;
+
+  data.writeInterfaceToken(
+      IBluetoothGattServerCallback::getInterfaceDescriptor());
+  data.writeInt32(status);
+  WriteGattIdentifierToParcel(service_id, &data);
+
+  remote()->transact(IBluetoothGattServerCallback::ON_SERVICE_ADDED_TRANSACTION,
+                     data, &reply,
+                     IBinder::FLAG_ONEWAY);
+}
+
+void BpBluetoothGattServerCallback::OnCharacteristicReadRequest(
+    const std::string& device_address,
+    int request_id, int offset, bool is_long,
+    const bluetooth::GattIdentifier& characteristic_id) {
+  Parcel data, reply;
+
+  data.writeInterfaceToken(
+      IBluetoothGattServerCallback::getInterfaceDescriptor());
+  data.writeCString(device_address.c_str());
+  data.writeInt32(request_id);
+  data.writeInt32(offset);
+  data.writeInt32(is_long);
+  WriteGattIdentifierToParcel(characteristic_id, &data);
+
+  remote()->transact(
+      IBluetoothGattServerCallback::ON_CHARACTERISTIC_READ_REQUEST_TRANSACTION,
+      data, &reply,
+      IBinder::FLAG_ONEWAY);
+}
+
+void BpBluetoothGattServerCallback::OnDescriptorReadRequest(
+    const std::string& device_address,
+    int request_id, int offset, bool is_long,
+    const bluetooth::GattIdentifier& descriptor_id) {
+  Parcel data, reply;
+
+  data.writeInterfaceToken(
+      IBluetoothGattServerCallback::getInterfaceDescriptor());
+  data.writeCString(device_address.c_str());
+  data.writeInt32(request_id);
+  data.writeInt32(offset);
+  data.writeInt32(is_long);
+  WriteGattIdentifierToParcel(descriptor_id, &data);
+
+  remote()->transact(
+      IBluetoothGattServerCallback::ON_DESCRIPTOR_READ_REQUEST_TRANSACTION,
+      data, &reply,
+      IBinder::FLAG_ONEWAY);
+}
+
+void BpBluetoothGattServerCallback::OnCharacteristicWriteRequest(
+    const std::string& device_address,
+    int request_id, int offset, bool is_prepare_write, bool need_response,
+    const std::vector<uint8_t>& value,
+    const bluetooth::GattIdentifier& characteristic_id) {
+  Parcel data, reply;
+
+  data.writeInterfaceToken(
+      IBluetoothGattServerCallback::getInterfaceDescriptor());
+  data.writeCString(device_address.c_str());
+  data.writeInt32(request_id);
+  data.writeInt32(offset);
+  data.writeInt32(is_prepare_write);
+  data.writeInt32(need_response);
+  data.writeByteVector(value);
+  WriteGattIdentifierToParcel(characteristic_id, &data);
+
+  remote()->transact(
+      IBluetoothGattServerCallback::ON_CHARACTERISTIC_WRITE_REQUEST_TRANSACTION,
+      data, &reply,
+      IBinder::FLAG_ONEWAY);
+}
+
+void BpBluetoothGattServerCallback::OnDescriptorWriteRequest(
+    const std::string& device_address,
+    int request_id, int offset, bool is_prepare_write, bool need_response,
+    const std::vector<uint8_t>& value,
+    const bluetooth::GattIdentifier& descriptor_id) {
+  Parcel data, reply;
+
+  data.writeInterfaceToken(
+      IBluetoothGattServerCallback::getInterfaceDescriptor());
+  data.writeCString(device_address.c_str());
+  data.writeInt32(request_id);
+  data.writeInt32(offset);
+  data.writeInt32(is_prepare_write);
+  data.writeInt32(need_response);
+  data.writeByteVector(value);
+  WriteGattIdentifierToParcel(descriptor_id, &data);
+
+  remote()->transact(
+      IBluetoothGattServerCallback::ON_DESCRIPTOR_WRITE_REQUEST_TRANSACTION,
+      data, &reply,
+      IBinder::FLAG_ONEWAY);
+}
+
+void BpBluetoothGattServerCallback::OnExecuteWriteRequest(
+    const std::string& device_address,
+    int request_id, bool is_execute) {
+  Parcel data, reply;
+
+  data.writeInterfaceToken(
+      IBluetoothGattServerCallback::getInterfaceDescriptor());
+  data.writeCString(device_address.c_str());
+  data.writeInt32(request_id);
+  data.writeInt32(is_execute);
+
+  remote()->transact(
+      IBluetoothGattServerCallback::ON_EXECUTE_WRITE_REQUEST_TRANSACTION,
+      data, &reply,
+      IBinder::FLAG_ONEWAY);
+}
+
+void BpBluetoothGattServerCallback::OnNotificationSent(
+    const std::string& device_address,
+    int status) {
+  Parcel data, reply;
+
+  data.writeInterfaceToken(
+      IBluetoothGattServerCallback::getInterfaceDescriptor());
+  data.writeCString(device_address.c_str());
+  data.writeInt32(status);
+
+  remote()->transact(
+      IBluetoothGattServerCallback::ON_NOTIFICATION_SENT_TRANSACTION,
+      data, &reply,
+      IBinder::FLAG_ONEWAY);
+}
+
+IMPLEMENT_META_INTERFACE(BluetoothGattServerCallback,
+                         IBluetoothGattServerCallback::kServiceName);
+
+}  // namespace binder
+}  // namespace ipc
diff --git a/rtkbt/code/bt/service/common/bluetooth/binder/IBluetoothGattServerCallback.h b/rtkbt/code/bt/service/common/bluetooth/binder/IBluetoothGattServerCallback.h
new file mode 100755
index 0000000..924a559
--- /dev/null
+++ b/rtkbt/code/bt/service/common/bluetooth/binder/IBluetoothGattServerCallback.h
@@ -0,0 +1,154 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#pragma once
+
+#include <cstdint>
+#include <string>
+#include <vector>
+
+#include <base/macros.h>
+#include <binder/IBinder.h>
+#include <binder/IInterface.h>
+
+#include <bluetooth/gatt_identifier.h>
+
+namespace ipc {
+namespace binder {
+
+// This class defines the Binder IPC interface for receiving callbacks related
+// to Bluetooth GATT server-role operations.
+// TODO(armansito): This class was written based on a new design doc proposal.
+// We need to add an AIDL for this to the framework code.
+//
+// NOTE: KEEP THIS FILE UP-TO-DATE with the corresponding AIDL, otherwise this
+// won't be compatible with the Android framework.
+/* oneway */ class IBluetoothGattServerCallback : public android::IInterface {
+ public:
+  DECLARE_META_INTERFACE(BluetoothGattServerCallback);
+
+  static const char kServiceName[];
+
+  // Transaction codes for interface methods.
+  enum {
+    ON_SERVER_REGISTERED_TRANSACTION = android::IBinder::FIRST_CALL_TRANSACTION,
+    ON_SERVICE_ADDED_TRANSACTION,
+    ON_CHARACTERISTIC_READ_REQUEST_TRANSACTION,
+    ON_DESCRIPTOR_READ_REQUEST_TRANSACTION,
+    ON_CHARACTERISTIC_WRITE_REQUEST_TRANSACTION,
+    ON_DESCRIPTOR_WRITE_REQUEST_TRANSACTION,
+    ON_EXECUTE_WRITE_REQUEST_TRANSACTION,
+    ON_NOTIFICATION_SENT_TRANSACTION,
+  };
+
+  virtual void OnServerRegistered(int status, int server_if) = 0;
+
+  virtual void OnServiceAdded(
+      int status, const bluetooth::GattIdentifier& service_id) = 0;
+
+  virtual void OnCharacteristicReadRequest(
+      const std::string& device_address,
+      int request_id, int offset, bool is_long,
+      const bluetooth::GattIdentifier& characteristic_id) = 0;
+
+  virtual void OnDescriptorReadRequest(
+      const std::string& device_address,
+      int request_id, int offset, bool is_long,
+      const bluetooth::GattIdentifier& descriptor_id) = 0;
+
+  virtual void OnCharacteristicWriteRequest(
+      const std::string& device_address,
+      int request_id, int offset, bool is_prepare_write, bool need_response,
+      const std::vector<uint8_t>& value,
+      const bluetooth::GattIdentifier& characteristic_id) = 0;
+
+  virtual void OnDescriptorWriteRequest(
+      const std::string& device_address,
+      int request_id, int offset, bool is_prepare_write, bool need_response,
+      const std::vector<uint8_t>& value,
+      const bluetooth::GattIdentifier& descriptor_id) = 0;
+
+  virtual void OnExecuteWriteRequest(
+      const std::string& device_address,
+      int request_id, bool is_execute) = 0;
+
+  virtual void OnNotificationSent(const std::string& device_address,
+                                  int status) = 0;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(IBluetoothGattServerCallback);
+};
+
+// The Binder server interface to IBluetoothGattServerCallback. A class that
+// implements IBluetoothGattServerCallback must inherit from this class.
+class BnBluetoothGattServerCallback
+    : public android::BnInterface<IBluetoothGattServerCallback> {
+ public:
+  BnBluetoothGattServerCallback() = default;
+  virtual ~BnBluetoothGattServerCallback() = default;
+
+ private:
+  virtual android::status_t onTransact(
+      uint32_t code,
+      const android::Parcel& data,
+      android::Parcel* reply,
+      uint32_t flags = 0);
+
+  DISALLOW_COPY_AND_ASSIGN(BnBluetoothGattServerCallback);
+};
+
+// The Binder client interface to IBluetoothGattServerCallback.
+class BpBluetoothGattServerCallback
+    : public android::BpInterface<IBluetoothGattServerCallback> {
+ public:
+  explicit BpBluetoothGattServerCallback(
+      const android::sp<android::IBinder>& impl);
+  virtual ~BpBluetoothGattServerCallback() = default;
+
+  // IBluetoothGattServerCallback overrides:
+  void OnServerRegistered(int status, int server_if) override;
+  void OnServiceAdded(int status,
+                      const bluetooth::GattIdentifier& service_id) override;
+  void OnCharacteristicReadRequest(
+      const std::string& device_address,
+      int request_id, int offset, bool is_long,
+      const bluetooth::GattIdentifier& characteristic_id) override;
+  void OnDescriptorReadRequest(
+      const std::string& device_address,
+      int request_id, int offset, bool is_long,
+      const bluetooth::GattIdentifier& descriptor_id) override;
+  void OnCharacteristicWriteRequest(
+      const std::string& device_address,
+      int request_id, int offset, bool is_prepare_write, bool need_response,
+      const std::vector<uint8_t>& value,
+      const bluetooth::GattIdentifier& characteristic_id) override;
+  void OnDescriptorWriteRequest(
+      const std::string& device_address,
+      int request_id, int offset, bool is_prepare_write, bool need_response,
+      const std::vector<uint8_t>& value,
+      const bluetooth::GattIdentifier& descriptor_id) override;
+  void OnExecuteWriteRequest(
+      const std::string& device_address,
+      int request_id, bool is_execute) override;
+  void OnNotificationSent(const std::string& device_address,
+                          int status) override;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(BpBluetoothGattServerCallback);
+};
+
+}  // namespace binder
+}  // namespace ipc
diff --git a/rtkbt/code/bt/service/common/bluetooth/binder/IBluetoothLowEnergy.cpp b/rtkbt/code/bt/service/common/bluetooth/binder/IBluetoothLowEnergy.cpp
new file mode 100755
index 0000000..ae2237b
--- /dev/null
+++ b/rtkbt/code/bt/service/common/bluetooth/binder/IBluetoothLowEnergy.cpp
@@ -0,0 +1,304 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#include "service/common/bluetooth/binder/IBluetoothLowEnergy.h"
+
+#include <base/logging.h>
+#include <binder/Parcel.h>
+
+#include "service/common/bluetooth/binder/parcel_helpers.h"
+
+using android::IBinder;
+using android::interface_cast;
+using android::Parcel;
+using android::sp;
+using android::status_t;
+
+using bluetooth::AdvertiseData;
+using bluetooth::AdvertiseSettings;
+
+namespace ipc {
+namespace binder {
+
+// static
+const char IBluetoothLowEnergy::kServiceName[] =
+    "bluetooth-low-energy-service";
+
+// BnBluetoothLowEnergy (server) implementation
+// ========================================================
+
+status_t BnBluetoothLowEnergy::onTransact(
+    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) {
+  VLOG(2) << "IBluetoothLowEnergy: " << code;
+  if (!data.checkInterface(this))
+    return android::PERMISSION_DENIED;
+
+  switch (code) {
+  case REGISTER_CLIENT_TRANSACTION: {
+    sp<IBinder> callback = data.readStrongBinder();
+    bool result = RegisterClient(
+        interface_cast<IBluetoothLowEnergyCallback>(callback));
+
+    reply->writeInt32(result);
+
+    return android::NO_ERROR;
+  }
+  case UNREGISTER_CLIENT_TRANSACTION: {
+    int client_id = data.readInt32();
+    UnregisterClient(client_id);
+    return android::NO_ERROR;
+  }
+  case UNREGISTER_ALL_TRANSACTION: {
+    UnregisterAll();
+    return android::NO_ERROR;
+  }
+  case CONNECT_TRANSACTION: {
+    int client_id = data.readInt32();
+    const char* address = data.readCString();
+    bool is_direct = data.readBool();
+
+    bool result = Connect(client_id, address, is_direct);
+    reply->writeInt32(result);
+
+    return android::NO_ERROR;
+  }
+  case DISCONNECT_TRANSACTION: {
+    int client_id = data.readInt32();
+    const char* address = data.readCString();
+
+    bool result = Disconnect(client_id, address);
+    reply->writeInt32(result);
+
+    return android::NO_ERROR;
+  }
+  case SET_MTU_TRANSACTION: {
+    int client_id = data.readInt32();
+    const char* address = data.readCString();
+    int mtu = data.readInt32();
+
+    bool result = SetMtu(client_id, address, mtu);
+    reply->writeInt32(result);
+
+    return android::NO_ERROR;
+  }
+  case START_SCAN_TRANSACTION: {
+    int client_id = data.readInt32();
+    auto settings = CreateScanSettingsFromParcel(data);
+    CHECK(settings);
+    std::vector<bluetooth::ScanFilter> filters;
+
+    int list_meta_data = data.readInt32();
+    CHECK(list_meta_data == kParcelValList);
+
+    int filter_count = data.readInt32();
+    if (filter_count >= 0) {  // Make sure |filter_count| isn't negative.
+      for (int i = 0; i < filter_count; i++) {
+        auto filter = CreateScanFilterFromParcel(data);
+        CHECK(filter);
+        filters.push_back(*filter);
+      }
+    }
+
+    bool result = StartScan(client_id, *settings, filters);
+    reply->writeInt32(result);
+
+    return android::NO_ERROR;
+  }
+  case STOP_SCAN_TRANSACTION: {
+    int client_id = data.readInt32();
+    bool result = StopScan(client_id);
+    reply->writeInt32(result);
+    return android::NO_ERROR;
+  }
+  case START_MULTI_ADVERTISING_TRANSACTION: {
+    int client_id = data.readInt32();
+    std::unique_ptr<AdvertiseData> adv_data =
+        CreateAdvertiseDataFromParcel(data);
+    std::unique_ptr<AdvertiseData> scan_rsp =
+        CreateAdvertiseDataFromParcel(data);
+    std::unique_ptr<AdvertiseSettings> adv_settings =
+        CreateAdvertiseSettingsFromParcel(data);
+
+    bool result = StartMultiAdvertising(
+        client_id, *adv_data, *scan_rsp, *adv_settings);
+
+    reply->writeInt32(result);
+
+    return android::NO_ERROR;
+  }
+  case STOP_MULTI_ADVERTISING_TRANSACTION: {
+    int client_id = data.readInt32();
+    bool result = StopMultiAdvertising(client_id);
+
+    reply->writeInt32(result);
+
+    return android::NO_ERROR;
+  }
+  default:
+    return BBinder::onTransact(code, data, reply, flags);
+  }
+}
+
+// BpBluetoothLowEnergy (client) implementation
+// ========================================================
+
+BpBluetoothLowEnergy::BpBluetoothLowEnergy(const sp<IBinder>& impl)
+    : BpInterface<IBluetoothLowEnergy>(impl) {
+}
+
+bool BpBluetoothLowEnergy::RegisterClient(
+      const sp<IBluetoothLowEnergyCallback>& callback) {
+  Parcel data, reply;
+
+  data.writeInterfaceToken(IBluetoothLowEnergy::getInterfaceDescriptor());
+  data.writeStrongBinder(IInterface::asBinder(callback.get()));
+
+  remote()->transact(IBluetoothLowEnergy::REGISTER_CLIENT_TRANSACTION,
+                     data, &reply);
+
+  return reply.readInt32();
+}
+
+void BpBluetoothLowEnergy::UnregisterClient(int client_id) {
+  Parcel data, reply;
+
+  data.writeInterfaceToken(IBluetoothLowEnergy::getInterfaceDescriptor());
+  data.writeInt32(client_id);
+
+  remote()->transact(IBluetoothLowEnergy::UNREGISTER_CLIENT_TRANSACTION,
+                     data, &reply);
+}
+
+void BpBluetoothLowEnergy::UnregisterAll() {
+  Parcel data, reply;
+
+  data.writeInterfaceToken(IBluetoothLowEnergy::getInterfaceDescriptor());
+
+  remote()->transact(IBluetoothLowEnergy::UNREGISTER_ALL_TRANSACTION,
+                     data, &reply);
+}
+
+bool BpBluetoothLowEnergy::Connect(int client_id, const char* address,
+                                   bool is_direct) {
+  Parcel data, reply;
+
+  data.writeInterfaceToken(IBluetoothLowEnergy::getInterfaceDescriptor());
+  data.writeInt32(client_id);
+  data.writeCString(address);
+  data.writeBool(is_direct);
+
+  remote()->transact(IBluetoothLowEnergy::CONNECT_TRANSACTION,
+                     data, &reply);
+
+  return reply.readInt32();
+}
+
+bool BpBluetoothLowEnergy::Disconnect(int client_id, const char* address) {
+  Parcel data, reply;
+
+  data.writeInterfaceToken(IBluetoothLowEnergy::getInterfaceDescriptor());
+  data.writeInt32(client_id);
+  data.writeCString(address);
+
+  remote()->transact(IBluetoothLowEnergy::DISCONNECT_TRANSACTION,
+                     data, &reply);
+
+  return reply.readInt32();
+}
+
+bool BpBluetoothLowEnergy::SetMtu(int client_id, const char* address, int mtu) {
+  Parcel data, reply;
+
+  data.writeInterfaceToken(IBluetoothLowEnergy::getInterfaceDescriptor());
+  data.writeInt32(client_id);
+  data.writeCString(address);
+  data.writeInt32(mtu);
+
+  remote()->transact(IBluetoothLowEnergy::SET_MTU_TRANSACTION, data, &reply);
+  return reply.readInt32();
+}
+
+bool BpBluetoothLowEnergy::StartScan(
+    int client_id,
+    const bluetooth::ScanSettings& settings,
+    const std::vector<bluetooth::ScanFilter>& filters) {
+  Parcel data, reply;
+
+  data.writeInterfaceToken(IBluetoothLowEnergy::getInterfaceDescriptor());
+  data.writeInt32(client_id);
+  WriteScanSettingsToParcel(settings, &data);
+
+  // The Java equivalent of |filters| is a List<ScanFilter>. Parcel.java inserts
+  // a metadata value of VAL_LIST (11) for this so I'm doing it here for
+  // compatibility.
+  data.writeInt32(kParcelValList);
+  data.writeInt32(filters.size());
+  for (const auto& filter : filters)
+    WriteScanFilterToParcel(filter, &data);
+
+  remote()->transact(IBluetoothLowEnergy::START_SCAN_TRANSACTION,
+                     data, &reply);
+
+  return reply.readInt32();
+}
+
+bool BpBluetoothLowEnergy::StopScan(int client_id) {
+  Parcel data, reply;
+
+  data.writeInterfaceToken(IBluetoothLowEnergy::getInterfaceDescriptor());
+  data.writeInt32(client_id);
+
+  remote()->transact(IBluetoothLowEnergy::STOP_SCAN_TRANSACTION,
+                     data, &reply);
+
+  return reply.readInt32();
+}
+
+bool BpBluetoothLowEnergy::StartMultiAdvertising(
+    int client_id,
+    const AdvertiseData& advertise_data,
+    const AdvertiseData& scan_response,
+    const AdvertiseSettings& settings) {
+  Parcel data, reply;
+
+  data.writeInterfaceToken(IBluetoothLowEnergy::getInterfaceDescriptor());
+  data.writeInt32(client_id);
+  WriteAdvertiseDataToParcel(advertise_data, &data);
+  WriteAdvertiseDataToParcel(scan_response, &data);
+  WriteAdvertiseSettingsToParcel(settings, &data);
+
+  remote()->transact(IBluetoothLowEnergy::START_MULTI_ADVERTISING_TRANSACTION,
+                     data, &reply);
+
+  return reply.readInt32();
+}
+
+bool BpBluetoothLowEnergy::StopMultiAdvertising(int client_id) {
+  Parcel data, reply;
+
+  data.writeInterfaceToken(IBluetoothLowEnergy::getInterfaceDescriptor());
+  data.writeInt32(client_id);
+
+  remote()->transact(IBluetoothLowEnergy::STOP_MULTI_ADVERTISING_TRANSACTION,
+                     data, &reply);
+
+  return reply.readInt32();
+}
+
+IMPLEMENT_META_INTERFACE(BluetoothLowEnergy, IBluetoothLowEnergy::kServiceName);
+
+}  // namespace binder
+}  // namespace ipc
diff --git a/rtkbt/code/bt/service/common/bluetooth/binder/IBluetoothLowEnergy.h b/rtkbt/code/bt/service/common/bluetooth/binder/IBluetoothLowEnergy.h
new file mode 100755
index 0000000..56f8c51
--- /dev/null
+++ b/rtkbt/code/bt/service/common/bluetooth/binder/IBluetoothLowEnergy.h
@@ -0,0 +1,151 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#pragma once
+
+#include <base/macros.h>
+#include <binder/IBinder.h>
+#include <binder/IInterface.h>
+
+#include <bluetooth/advertise_data.h>
+#include <bluetooth/advertise_settings.h>
+#include <bluetooth/scan_filter.h>
+#include <bluetooth/scan_settings.h>
+#include <bluetooth/binder/IBluetoothLowEnergyCallback.h>
+
+namespace ipc {
+namespace binder {
+
+// This class defines the Binder IPC interface for interacting with Bluetooth
+// Low-Energy features.
+// TODO(armansito): This class was written based on a new design doc proposal.
+// We need to add an AIDL for this to the framework code.
+//
+// NOTE: KEEP THIS FILE UP-TO-DATE with the corresponding AIDL, otherwise this
+// won't be compatible with the Android framework.
+class IBluetoothLowEnergy : public android::IInterface {
+ public:
+  DECLARE_META_INTERFACE(BluetoothLowEnergy);
+
+  static const char kServiceName[];
+
+  // Transaction codes for interface methods.
+  enum {
+    GET_DEVICES_MATCHING_CONNECTION_STATE_TRANSACTION =
+        android::IBinder::FIRST_CALL_TRANSACTION,
+
+    REGISTER_CLIENT_TRANSACTION,
+    UNREGISTER_CLIENT_TRANSACTION,
+    UNREGISTER_ALL_TRANSACTION,
+
+    START_SCAN_TRANSACTION,
+    STOP_SCAN_TRANSACTION,
+    FLUSH_PENDING_BATCH_RESULTS_TRANSACTION,
+    START_MULTI_ADVERTISING_TRANSACTION,
+    STOP_MULTI_ADVERTISING_TRANSACTION,
+
+    CONNECT_TRANSACTION,
+    DISCONNECT_TRANSACTION,
+    SET_MTU_TRANSACTION,
+    READ_REMOTE_RSSI_TRANSACTION,
+    CONFIGURE_ATT_MTU_TRANSACTION,
+    CONNECTION_PARAMETER_UPDATE_TRANSACTION,
+    DISCONNECT_ALL_TRANSACTION,
+
+    NUM_HW_TRACK_FILTERS_AVAILABLE,
+  };
+
+  virtual bool RegisterClient(
+      const android::sp<IBluetoothLowEnergyCallback>& callback) = 0;
+  virtual void UnregisterClient(int client_if) = 0;
+  virtual void UnregisterAll() = 0;
+
+  virtual bool Connect(int client_id, const char* address, bool is_direct) = 0;
+  virtual bool Disconnect(int client_id, const char* address) = 0;
+
+  virtual bool SetMtu(int client_id, const char* address, int mtu) = 0;
+
+  virtual bool StartScan(
+      int client_id,
+      const bluetooth::ScanSettings& settings,
+      const std::vector<bluetooth::ScanFilter>& filters) = 0;
+  virtual bool StopScan(int client_id) = 0;
+
+  virtual bool StartMultiAdvertising(
+      int client_if,
+      const bluetooth::AdvertiseData& advertise_data,
+      const bluetooth::AdvertiseData& scan_response,
+      const bluetooth::AdvertiseSettings& settings) = 0;
+  virtual bool StopMultiAdvertising(int client_if) = 0;
+
+  // TODO(armansito): Complete the API definition.
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(IBluetoothLowEnergy);
+};
+
+// The Binder server interface to IBluetoothLowEnergy. A class that implements
+// IBluetoothLowEnergy must inherit from this class.
+class BnBluetoothLowEnergy : public android::BnInterface<IBluetoothLowEnergy> {
+ public:
+  BnBluetoothLowEnergy() = default;
+  virtual ~BnBluetoothLowEnergy() = default;
+
+ private:
+  virtual android::status_t onTransact(
+      uint32_t code,
+      const android::Parcel& data,
+      android::Parcel* reply,
+      uint32_t flags = 0);
+
+  DISALLOW_COPY_AND_ASSIGN(BnBluetoothLowEnergy);
+};
+
+// The Binder client interface to IBluetoothLowEnergy.
+class BpBluetoothLowEnergy : public android::BpInterface<IBluetoothLowEnergy> {
+ public:
+  explicit BpBluetoothLowEnergy(const android::sp<android::IBinder>& impl);
+  virtual ~BpBluetoothLowEnergy() = default;
+
+  // IBluetoothLowEnergy overrides:
+  bool RegisterClient(
+      const android::sp<IBluetoothLowEnergyCallback>& callback) override;
+  void UnregisterClient(int client_if) override;
+  void UnregisterAll() override;
+
+  bool Connect(int client_id, const char* address, bool is_direct) override;
+  bool Disconnect(int client_id, const char* address) override;
+
+  bool SetMtu(int client_id, const char* address, int mtu) override;
+
+  bool StartScan(
+      int client_id,
+      const bluetooth::ScanSettings& settings,
+      const std::vector<bluetooth::ScanFilter>& filters) override;
+  bool StopScan(int client_id) override;
+  bool StartMultiAdvertising(
+      int client_if,
+      const bluetooth::AdvertiseData& advertise_data,
+      const bluetooth::AdvertiseData& scan_response,
+      const bluetooth::AdvertiseSettings& settings) override;
+  bool StopMultiAdvertising(int client_if) override;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(BpBluetoothLowEnergy);
+};
+
+}  // namespace binder
+}  // namespace ipc
diff --git a/rtkbt/code/bt/service/common/bluetooth/binder/IBluetoothLowEnergyCallback.cpp b/rtkbt/code/bt/service/common/bluetooth/binder/IBluetoothLowEnergyCallback.cpp
new file mode 100755
index 0000000..c887e5f
--- /dev/null
+++ b/rtkbt/code/bt/service/common/bluetooth/binder/IBluetoothLowEnergyCallback.cpp
@@ -0,0 +1,186 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#include "service/common/bluetooth/binder/IBluetoothLowEnergyCallback.h"
+
+#include <base/logging.h>
+#include <binder/Parcel.h>
+
+#include "service/common/bluetooth/binder/parcel_helpers.h"
+
+using android::IBinder;
+using android::Parcel;
+using android::sp;
+using android::status_t;
+
+using bluetooth::AdvertiseData;
+using bluetooth::AdvertiseSettings;
+
+namespace ipc {
+namespace binder {
+
+// static
+const char IBluetoothLowEnergyCallback::kServiceName[] =
+    "bluetooth-low-energy-callback-service";
+
+// BnBluetoothLowEnergyCallback (server) implementation
+// ========================================================
+
+status_t BnBluetoothLowEnergyCallback::onTransact(
+    uint32_t code,
+    const Parcel& data,
+    Parcel* reply,
+    uint32_t flags) {
+  VLOG(2) << "IBluetoothLowEnergyCallback: " << code;
+  if (!data.checkInterface(this))
+    return android::PERMISSION_DENIED;
+
+  switch (code) {
+  case ON_CLIENT_REGISTERED_TRANSACTION: {
+    int status = data.readInt32();
+    int client_if = data.readInt32();
+    OnClientRegistered(status, client_if);
+    return android::NO_ERROR;
+  }
+  case ON_CONNECTION_STATE_TRANSACTION: {
+    int status = data.readInt32();
+    int client_id = data.readInt32();
+    const char* address = data.readCString();
+    bool connected = data.readBool();
+
+    OnConnectionState(status, client_id, address, connected);
+    return android::NO_ERROR;
+  }
+  case ON_MTU_CHANGED_TRANSACTION: {
+    int status = data.readInt32();
+    const char *address = data.readCString();
+    int mtu = data.readInt32();
+
+    OnMtuChanged(status, address, mtu);
+    return android::NO_ERROR;
+  }
+  case ON_SCAN_RESULT_TRANSACTION: {
+    auto scan_result = CreateScanResultFromParcel(data);
+    CHECK(scan_result.get());
+    OnScanResult(*scan_result);
+    return android::NO_ERROR;
+  }
+  case ON_MULTI_ADVERTISE_CALLBACK_TRANSACTION: {
+    int status = data.readInt32();
+    bool is_start = data.readInt32();
+    std::unique_ptr<AdvertiseSettings> settings =
+        CreateAdvertiseSettingsFromParcel(data);
+    OnMultiAdvertiseCallback(status, is_start, *settings);
+    return android::NO_ERROR;
+  }
+  default:
+    return BBinder::onTransact(code, data, reply, flags);
+  }
+}
+
+// BpBluetoothLowEnergyCallback (client) implementation
+// ========================================================
+
+BpBluetoothLowEnergyCallback::BpBluetoothLowEnergyCallback(
+    const sp<IBinder>& impl)
+    : BpInterface<IBluetoothLowEnergyCallback>(impl) {
+}
+
+void BpBluetoothLowEnergyCallback::OnClientRegistered(
+    int status, int client_if) {
+  Parcel data, reply;
+
+  data.writeInterfaceToken(
+      IBluetoothLowEnergyCallback::getInterfaceDescriptor());
+  data.writeInt32(status);
+  data.writeInt32(client_if);
+
+  remote()->transact(
+      IBluetoothLowEnergyCallback::ON_CLIENT_REGISTERED_TRANSACTION,
+      data, &reply,
+      IBinder::FLAG_ONEWAY);
+}
+
+void BpBluetoothLowEnergyCallback::OnConnectionState(
+    int status, int client_id, const char* address, bool connected) {
+
+  Parcel data;
+
+  data.writeInterfaceToken(
+      IBluetoothLowEnergyCallback::getInterfaceDescriptor());
+  data.writeInt32(status);
+  data.writeInt32(client_id);
+  data.writeCString(address);
+  data.writeBool(connected);
+
+  remote()->transact(
+      IBluetoothLowEnergyCallback::ON_CONNECTION_STATE_TRANSACTION,
+      data, NULL,
+      IBinder::FLAG_ONEWAY);
+}
+
+void BpBluetoothLowEnergyCallback::OnMtuChanged(
+    int status, const char* address, int mtu) {
+  Parcel data;
+
+  data.writeInterfaceToken(
+      IBluetoothLowEnergyCallback::getInterfaceDescriptor());
+  data.writeInt32(status);
+  data.writeCString(address);
+  data.writeInt32(mtu);
+
+  remote()->transact(
+      IBluetoothLowEnergyCallback::ON_MTU_CHANGED_TRANSACTION,
+      data, NULL,
+      IBinder::FLAG_ONEWAY);
+}
+
+void BpBluetoothLowEnergyCallback::OnScanResult(
+    const bluetooth::ScanResult& scan_result) {
+  Parcel data, reply;
+
+  data.writeInterfaceToken(
+      IBluetoothLowEnergyCallback::getInterfaceDescriptor());
+  WriteScanResultToParcel(scan_result, &data);
+
+  remote()->transact(
+      IBluetoothLowEnergyCallback::ON_SCAN_RESULT_TRANSACTION,
+      data, &reply,
+      IBinder::FLAG_ONEWAY);
+}
+
+void BpBluetoothLowEnergyCallback::OnMultiAdvertiseCallback(
+    int status, bool is_start,
+    const AdvertiseSettings& settings) {
+  Parcel data, reply;
+
+  data.writeInterfaceToken(
+      IBluetoothLowEnergyCallback::getInterfaceDescriptor());
+  data.writeInt32(status);
+  data.writeInt32(is_start);
+  WriteAdvertiseSettingsToParcel(settings, &data);
+
+  remote()->transact(
+      IBluetoothLowEnergyCallback::ON_MULTI_ADVERTISE_CALLBACK_TRANSACTION,
+      data, &reply,
+      IBinder::FLAG_ONEWAY);
+}
+
+IMPLEMENT_META_INTERFACE(BluetoothLowEnergyCallback,
+                         IBluetoothLowEnergyCallback::kServiceName);
+
+}  // namespace binder
+}  // namespace ipc
diff --git a/rtkbt/code/bt/service/common/bluetooth/binder/IBluetoothLowEnergyCallback.h b/rtkbt/code/bt/service/common/bluetooth/binder/IBluetoothLowEnergyCallback.h
new file mode 100755
index 0000000..6c52726
--- /dev/null
+++ b/rtkbt/code/bt/service/common/bluetooth/binder/IBluetoothLowEnergyCallback.h
@@ -0,0 +1,113 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#pragma once
+
+#include <base/macros.h>
+#include <binder/IBinder.h>
+#include <binder/IInterface.h>
+
+#include <bluetooth/advertise_data.h>
+#include <bluetooth/advertise_settings.h>
+#include <bluetooth/scan_result.h>
+
+namespace ipc {
+namespace binder {
+
+// This class defines the Binder IPC interface for receiving callbacks related
+// to Bluetooth Low Energy operations.
+// TODO(armansito): This class was written based on a new design doc proposal.
+// We need to add an AIDL for this to the framework code.
+//
+// NOTE: KEEP THIS FILE UP-TO-DATE with the corresponding AIDL, otherwise this
+// won't be compatible with the Android framework.
+/* oneway */ class IBluetoothLowEnergyCallback : public android::IInterface {
+ public:
+  DECLARE_META_INTERFACE(BluetoothLowEnergyCallback);
+
+  static const char kServiceName[];
+
+  // Transaction codes for interface methods.
+  enum {
+    ON_CLIENT_REGISTERED_TRANSACTION = android::IBinder::FIRST_CALL_TRANSACTION,
+    ON_CONNECTION_STATE_TRANSACTION,
+    ON_MTU_CHANGED_TRANSACTION,
+    ON_SCAN_RESULT_TRANSACTION,
+    ON_BATCH_SCAN_RESULTS_TRANSACTION,
+    ON_READ_REMOTE_RSSI_TRANSACTION,
+    ON_MULTI_ADVERTISE_CALLBACK_TRANSACTION,
+    ON_SCAN_MANAGER_ERROR_CALLBACK_TRANSACTION,
+    ON_CONFIGURE_ATT_MTU_TRANSACTION,
+    ON_ATT_MTU_CHANGED_TRANSACTION,
+    ON_FOUND_OR_LOST_TRANSACTION,
+  };
+
+  virtual void OnClientRegistered(int status, int client_if) = 0;
+  virtual void OnConnectionState(int status, int client_id, const char* address,
+                                 bool connected) = 0;
+  virtual void OnMtuChanged(int status, const char* address, int mtu) = 0;
+  virtual void OnScanResult(const bluetooth::ScanResult& scan_result) = 0;
+  virtual void OnMultiAdvertiseCallback(
+      int status, bool is_start,
+      const bluetooth::AdvertiseSettings& settings) = 0;
+
+  // TODO(armansito): Complete the API definition.
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(IBluetoothLowEnergyCallback);
+};
+
+// The Binder server interface to allback. A class that
+// implements IBluetoothLowEnergyCallback must inherit from this class.
+class BnBluetoothLowEnergyCallback
+    : public android::BnInterface<IBluetoothLowEnergyCallback> {
+ public:
+  BnBluetoothLowEnergyCallback() = default;
+  virtual ~BnBluetoothLowEnergyCallback() = default;
+
+ private:
+  virtual android::status_t onTransact(
+      uint32_t code,
+      const android::Parcel& data,
+      android::Parcel* reply,
+      uint32_t flags = 0);
+
+  DISALLOW_COPY_AND_ASSIGN(BnBluetoothLowEnergyCallback);
+};
+
+// The Binder client interface to IBluetoothLowEnergyCallback.
+class BpBluetoothLowEnergyCallback
+    : public android::BpInterface<IBluetoothLowEnergyCallback> {
+ public:
+  BpBluetoothLowEnergyCallback(const android::sp<android::IBinder>& impl);
+  virtual ~BpBluetoothLowEnergyCallback() = default;
+
+  // IBluetoothLowEnergyCallback overrides:
+  void OnClientRegistered(int status, int client_if) override;
+  void OnConnectionState(int status, int client_id, const char* address,
+                         bool connected) override;
+  void OnMtuChanged(int status, const char* address, int mtu) override;
+  void OnScanResult(const bluetooth::ScanResult& scan_result) override;
+  void OnMultiAdvertiseCallback(
+      int status, bool is_start,
+      const bluetooth::AdvertiseSettings& settings) override;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(BpBluetoothLowEnergyCallback);
+};
+
+}  // namespace binder
+}  // namespace ipc
diff --git a/rtkbt/code/bt/service/common/bluetooth/binder/parcel_helpers.cpp b/rtkbt/code/bt/service/common/bluetooth/binder/parcel_helpers.cpp
new file mode 100755
index 0000000..5724e94
--- /dev/null
+++ b/rtkbt/code/bt/service/common/bluetooth/binder/parcel_helpers.cpp
@@ -0,0 +1,305 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#include "service/common/bluetooth/binder/parcel_helpers.h"
+
+#include "service/common/bluetooth/util/address_helper.h"
+
+using android::Parcel;
+
+using bluetooth::AdvertiseData;
+using bluetooth::AdvertiseSettings;
+using bluetooth::GattIdentifier;
+using bluetooth::ScanFilter;
+using bluetooth::ScanResult;
+using bluetooth::ScanSettings;
+using bluetooth::UUID;
+
+namespace ipc {
+namespace binder {
+
+// TODO(armansito): The helpers below currently don't match the Java
+// definitions. We need to change the AIDL and framework code to comply with the
+// new definition and Parcel format provided here.
+
+void WriteAdvertiseDataToParcel(const AdvertiseData& data, Parcel* parcel) {
+  CHECK(parcel);
+  parcel->writeByteVector(data.data());
+  parcel->writeInt32(data.include_device_name());
+  parcel->writeInt32(data.include_tx_power_level());
+}
+
+std::unique_ptr<AdvertiseData> CreateAdvertiseDataFromParcel(
+    const Parcel& parcel) {
+  std::unique_ptr<std::vector<uint8_t>> data;
+  parcel.readByteVector(&data);
+  CHECK(data.get());
+
+  bool include_device_name = parcel.readInt32();
+  bool include_tx_power = parcel.readInt32();
+
+  std::unique_ptr<AdvertiseData> adv(new AdvertiseData(*data));
+  adv->set_include_device_name(include_device_name);
+  adv->set_include_tx_power_level(include_tx_power);
+
+  return adv;
+}
+
+void WriteAdvertiseSettingsToParcel(const AdvertiseSettings& settings,
+                                    Parcel* parcel) {
+  CHECK(parcel);
+  parcel->writeInt32(settings.mode());
+  parcel->writeInt32(settings.tx_power_level());
+  parcel->writeInt32(settings.connectable());
+  parcel->writeInt64(settings.timeout().InMilliseconds());
+}
+
+std::unique_ptr<AdvertiseSettings> CreateAdvertiseSettingsFromParcel(
+    const Parcel& parcel) {
+  AdvertiseSettings::Mode mode =
+      static_cast<AdvertiseSettings::Mode>(parcel.readInt32());
+  AdvertiseSettings::TxPowerLevel tx_power =
+      static_cast<AdvertiseSettings::TxPowerLevel>(parcel.readInt32());
+  bool connectable = parcel.readInt32();
+  base::TimeDelta timeout = base::TimeDelta::FromMilliseconds(
+      parcel.readInt64());
+
+  return std::unique_ptr<AdvertiseSettings>(
+      new AdvertiseSettings(mode, timeout, tx_power, connectable));
+}
+
+void WriteUUIDToParcel(const UUID& uuid, android::Parcel* parcel) {
+  // The scheme used by android.os.ParcelUuid is to wrote the most significant
+  // bits first as one 64-bit integer, followed by the least significant bits in
+  // a second 64-bit integer. This is the same as writing the raw-bytes in
+  // sequence, but we don't want to assume any host-endianness here. So follow
+  // the same scheme and use the same Parcel APIs.
+  UUID::UUID128Bit bytes = uuid.GetFullBigEndian();
+
+  uint64_t most_sig_bits =
+      ((((uint64_t) bytes[0]) << 56) |
+       (((uint64_t) bytes[1]) << 48) |
+       (((uint64_t) bytes[2]) << 40) |
+       (((uint64_t) bytes[3]) << 32) |
+       (((uint64_t) bytes[4]) << 24) |
+       (((uint64_t) bytes[5]) << 16) |
+       (((uint64_t) bytes[6]) << 8) |
+       bytes[7]);
+
+  uint64_t least_sig_bits =
+      ((((uint64_t) bytes[8]) << 56) |
+       (((uint64_t) bytes[9]) << 48) |
+       (((uint64_t) bytes[10]) << 40) |
+       (((uint64_t) bytes[11]) << 32) |
+       (((uint64_t) bytes[12]) << 24) |
+       (((uint64_t) bytes[13]) << 16) |
+       (((uint64_t) bytes[14]) << 8) |
+       bytes[15]);
+
+  parcel->writeUint64(most_sig_bits);
+  parcel->writeUint64(least_sig_bits);
+}
+
+std::unique_ptr<UUID> CreateUUIDFromParcel(
+    const android::Parcel& parcel) {
+  UUID::UUID128Bit bytes;
+
+  uint64_t most_sig_bits = parcel.readUint64();
+  uint64_t least_sig_bits = parcel.readUint64();
+
+  bytes[0] = (most_sig_bits >> 56) & 0xFF;
+  bytes[1] = (most_sig_bits >> 48) & 0xFF;
+  bytes[2] = (most_sig_bits >> 40) & 0xFF;
+  bytes[3] = (most_sig_bits >> 32) & 0xFF;
+  bytes[4] = (most_sig_bits >> 24) & 0xFF;
+  bytes[5] = (most_sig_bits >> 16) & 0xFF;
+  bytes[6] = (most_sig_bits >> 8) & 0xFF;
+  bytes[7] = most_sig_bits & 0xFF;
+
+  bytes[8] = (least_sig_bits >> 56) & 0xFF;
+  bytes[9] = (least_sig_bits >> 48) & 0xFF;
+  bytes[10] = (least_sig_bits >> 40) & 0xFF;
+  bytes[11] = (least_sig_bits >> 32) & 0xFF;
+  bytes[12] = (least_sig_bits >> 24) & 0xFF;
+  bytes[13] = (least_sig_bits >> 16) & 0xFF;
+  bytes[14] = (least_sig_bits >> 8) & 0xFF;
+  bytes[15] = least_sig_bits & 0xFF;
+
+  return std::unique_ptr<UUID>(new UUID(bytes));
+}
+
+void WriteGattIdentifierToParcel(
+    const GattIdentifier& gatt_id,
+    android::Parcel* parcel) {
+  parcel->writeCString(gatt_id.device_address().c_str());
+  parcel->writeInt32(gatt_id.is_primary());
+
+  WriteUUIDToParcel(gatt_id.service_uuid(), parcel);
+  WriteUUIDToParcel(gatt_id.characteristic_uuid(), parcel);
+  WriteUUIDToParcel(gatt_id.descriptor_uuid(), parcel);
+
+  parcel->writeInt32(gatt_id.service_instance_id());
+  parcel->writeInt32(gatt_id.characteristic_instance_id());
+  parcel->writeInt32(gatt_id.descriptor_instance_id());
+}
+
+std::unique_ptr<GattIdentifier> CreateGattIdentifierFromParcel(
+    const android::Parcel& parcel) {
+  std::string device_address = parcel.readCString();
+  bool is_primary = parcel.readInt32();
+
+  auto service_uuid = CreateUUIDFromParcel(parcel);
+  auto char_uuid = CreateUUIDFromParcel(parcel);
+  auto desc_uuid = CreateUUIDFromParcel(parcel);
+
+  int service_id = parcel.readInt32();
+  int char_id = parcel.readInt32();
+  int desc_id = parcel.readInt32();
+
+  return std::unique_ptr<GattIdentifier>(
+      new GattIdentifier(
+          device_address, is_primary,
+          *service_uuid, *char_uuid, *desc_uuid,
+          service_id, char_id, desc_id));
+}
+
+void WriteScanFilterToParcel(
+    const ScanFilter& filter,
+    android::Parcel* parcel) {
+  bool has_name = !filter.device_name().empty();
+  parcel->writeInt32(has_name ? 1 : 0);
+  if (has_name)
+    parcel->writeCString(filter.device_name().c_str());
+
+  bool has_address = !filter.device_address().empty();
+  parcel->writeInt32(has_address ? 1 : 0);
+  if (has_address)
+    parcel->writeCString(filter.device_address().c_str());
+
+  parcel->writeInt32(filter.service_uuid() ? 1 : 0);
+  if (filter.service_uuid()) {
+    WriteUUIDToParcel(*filter.service_uuid(), parcel);
+    parcel->writeInt32(filter.service_uuid_mask() ? 1 : 0);
+    if (filter.service_uuid_mask())
+      WriteUUIDToParcel(*filter.service_uuid_mask(), parcel);
+  }
+
+  // TODO(armansito): Support service and manufacturer data.
+}
+
+std::unique_ptr<ScanFilter> CreateScanFilterFromParcel(
+    const android::Parcel& parcel) {
+  std::string device_name;
+  if (parcel.readInt32() == 1)
+    device_name = parcel.readCString();
+
+  std::string device_address;
+  if (parcel.readInt32() == 1)
+    device_address = parcel.readCString();
+
+  std::unique_ptr<UUID> service_uuid, service_uuid_mask;
+  if (parcel.readInt32() == 1) {
+    service_uuid = CreateUUIDFromParcel(parcel);
+    if (parcel.readInt32() == 1)
+      service_uuid_mask = CreateUUIDFromParcel(parcel);
+  }
+
+  // TODO(armansito): Support service and manufacturer data.
+
+  std::unique_ptr<ScanFilter> filter(new ScanFilter());
+
+  filter->set_device_name(device_name);
+
+  if (!filter->SetDeviceAddress(device_address))
+    return nullptr;
+
+  if (!service_uuid)
+    return filter;
+
+  if (service_uuid_mask)
+    filter->SetServiceUuidWithMask(*service_uuid, *service_uuid_mask);
+  else
+    filter->SetServiceUuid(*service_uuid);
+
+  return filter;
+}
+
+void WriteScanSettingsToParcel(
+    const ScanSettings& settings,
+    android::Parcel* parcel) {
+  parcel->writeInt32(settings.mode());
+  parcel->writeInt32(settings.callback_type());
+  parcel->writeInt32(settings.result_type());
+  parcel->writeInt64(settings.report_delay().InMilliseconds());
+  parcel->writeInt32(settings.match_mode());
+  parcel->writeInt32(settings.match_count_per_filter());
+}
+
+std::unique_ptr<ScanSettings> CreateScanSettingsFromParcel(
+    const android::Parcel& parcel) {
+  ScanSettings::Mode mode =
+      static_cast<ScanSettings::Mode>(parcel.readInt32());
+  ScanSettings::CallbackType callback_type =
+      static_cast<ScanSettings::CallbackType>(parcel.readInt32());
+  ScanSettings::ResultType result_type =
+      static_cast<ScanSettings::ResultType>(parcel.readInt32());
+  base::TimeDelta report_delay = base::TimeDelta::FromMilliseconds(
+      parcel.readInt64());
+  ScanSettings::MatchMode match_mode =
+      static_cast<ScanSettings::MatchMode>(parcel.readInt32());
+  ScanSettings::MatchCount match_count_per_filter =
+      static_cast<ScanSettings::MatchCount>(parcel.readInt32());
+
+  return std::unique_ptr<ScanSettings>(new ScanSettings(
+      mode, callback_type, result_type, report_delay,
+      match_mode, match_count_per_filter));
+}
+
+void WriteScanResultToParcel(
+    const bluetooth::ScanResult& scan_result,
+    android::Parcel* parcel) {
+  // The Java framework code conditionally inserts 1 or 0 to indicate if the
+  // device adress and the scan record fields are present, based on whether the
+  // Java object is null. We do something similar here for consistency, although
+  // the native definition of ScanResult requires a valid BD_ADDR.
+  if (util::IsAddressValid(scan_result.device_address())) {
+    parcel->writeInt32(1);
+    parcel->writeCString(scan_result.device_address().c_str());
+  } else {
+    parcel->writeInt32(0);
+  }
+
+  parcel->writeByteVector(scan_result.scan_record());
+  parcel->writeInt32(scan_result.rssi());
+}
+
+std::unique_ptr<bluetooth::ScanResult> CreateScanResultFromParcel(
+    const android::Parcel& parcel) {
+  std::string device_address;
+  if (parcel.readInt32())
+    device_address = parcel.readCString();
+
+  std::unique_ptr<std::vector<uint8_t>> scan_record;
+  parcel.readByteVector(&scan_record);
+  CHECK(scan_record.get());
+
+  int rssi = parcel.readInt32();
+
+  return std::unique_ptr<ScanResult>(new ScanResult(
+      device_address, *scan_record, rssi));
+}
+}  // namespace binder
+}  // namespace ipc
diff --git a/rtkbt/code/bt/service/common/bluetooth/binder/parcel_helpers.h b/rtkbt/code/bt/service/common/bluetooth/binder/parcel_helpers.h
new file mode 100755
index 0000000..a4c1073
--- /dev/null
+++ b/rtkbt/code/bt/service/common/bluetooth/binder/parcel_helpers.h
@@ -0,0 +1,99 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#pragma once
+
+#include <memory>
+
+#include <binder/Parcel.h>
+
+#include <bluetooth/advertise_data.h>
+#include <bluetooth/advertise_settings.h>
+#include <bluetooth/gatt_identifier.h>
+#include <bluetooth/scan_filter.h>
+#include <bluetooth/scan_result.h>
+#include <bluetooth/scan_settings.h>
+#include <bluetooth/uuid.h>
+
+namespace ipc {
+namespace binder {
+
+// Java Parcel meta-data constants.
+const int kParcelValList = 11;
+
+// Helpers for converting bluetooth::AdvertiseData to/from Parcel
+
+void WriteAdvertiseDataToParcel(
+    const bluetooth::AdvertiseData& data,
+    android::Parcel* parcel);
+
+std::unique_ptr<bluetooth::AdvertiseData> CreateAdvertiseDataFromParcel(
+    const android::Parcel& parcel);
+
+// Helpers for converting bluetooth::AdvertiseSettings to/from Parcel
+
+void WriteAdvertiseSettingsToParcel(
+    const bluetooth::AdvertiseSettings& settings,
+    android::Parcel* parcel);
+
+std::unique_ptr<bluetooth::AdvertiseSettings> CreateAdvertiseSettingsFromParcel(
+    const android::Parcel& parcel);
+
+// Helpers for converting bluetooth::UUID to/from Parcel
+
+void WriteUUIDToParcel(const bluetooth::UUID& uuid, android::Parcel* parcel);
+
+std::unique_ptr<bluetooth::UUID> CreateUUIDFromParcel(
+    const android::Parcel& parcel);
+
+// Helpers for converting bluetooth::GattIdentifier to/from Parcel
+
+void WriteGattIdentifierToParcel(
+    const bluetooth::GattIdentifier& gatt_id,
+    android::Parcel* parcel);
+
+std::unique_ptr<bluetooth::GattIdentifier> CreateGattIdentifierFromParcel(
+    const android::Parcel& parcel);
+
+// Helpers for converting bluetooth::ScanFilter to/from Parcel
+
+void WriteScanFilterToParcel(
+    const bluetooth::ScanFilter& filter,
+    android::Parcel* parcel);
+
+std::unique_ptr<bluetooth::ScanFilter> CreateScanFilterFromParcel(
+    const android::Parcel& parcel);
+
+// Helpers for converting bluetooth::ScanSettings to/from Parcel
+
+void WriteScanSettingsToParcel(
+    const bluetooth::ScanSettings& settings,
+    android::Parcel* parcel);
+
+std::unique_ptr<bluetooth::ScanSettings> CreateScanSettingsFromParcel(
+    const android::Parcel& parcel);
+
+// Helpers for converting bluetooth::ScanResult to/from Parcel
+
+void WriteScanResultToParcel(
+    const bluetooth::ScanResult& scan_result,
+    android::Parcel* parcel);
+
+std::unique_ptr<bluetooth::ScanResult> CreateScanResultFromParcel(
+    const android::Parcel& parcel);
+
+}  // namespace binder
+}  // namespace ipc
diff --git a/rtkbt/code/bt/service/common/bluetooth/gatt_identifier.cpp b/rtkbt/code/bt/service/common/bluetooth/gatt_identifier.cpp
new file mode 100755
index 0000000..312a6c4
--- /dev/null
+++ b/rtkbt/code/bt/service/common/bluetooth/gatt_identifier.cpp
@@ -0,0 +1,188 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#include "service/common/bluetooth/gatt_identifier.h"
+
+#include "service/common/bluetooth/util/address_helper.h"
+
+namespace bluetooth {
+
+namespace {
+
+const int kInvalidInstanceId = -1;
+
+}  // namespace
+
+// static
+std::unique_ptr<GattIdentifier> GattIdentifier::CreateServiceId(
+    const std::string& device_address,
+    int id, const UUID& uuid,
+    bool is_primary) {
+  if (id < 0 ||
+      (!device_address.empty() && !util::IsAddressValid(device_address)))
+    return nullptr;
+
+  std::unique_ptr<GattIdentifier> gatt_id(new GattIdentifier());
+
+  gatt_id->device_address_ = device_address;
+  gatt_id->service_uuid_ = uuid;
+  gatt_id->service_instance_id_ = id;
+  gatt_id->is_primary_ = is_primary;
+
+  return gatt_id;
+}
+
+// static
+std::unique_ptr<GattIdentifier> GattIdentifier::CreateCharacteristicId(
+    int id, const UUID& uuid,
+    const GattIdentifier& service_id) {
+  if (!service_id.IsService())
+    return nullptr;
+
+  std::unique_ptr<GattIdentifier> gatt_id(new GattIdentifier(service_id));
+
+  gatt_id->char_uuid_ = uuid;
+  gatt_id->char_instance_id_ = id;
+
+  return gatt_id;
+}
+
+// static
+std::unique_ptr<GattIdentifier> GattIdentifier::CreateDescriptorId(
+    int id, const UUID& uuid,
+    const GattIdentifier& char_id) {
+  if (!char_id.IsCharacteristic())
+    return nullptr;
+
+  std::unique_ptr<GattIdentifier> gatt_id(new GattIdentifier(char_id));
+
+  gatt_id->desc_uuid_ = uuid;
+  gatt_id->desc_instance_id_ = id;
+
+  return gatt_id;
+}
+
+// Copy constructor and assignment operator.
+GattIdentifier::GattIdentifier()
+  : is_primary_(false),
+    service_instance_id_(kInvalidInstanceId),
+    char_instance_id_(kInvalidInstanceId),
+    desc_instance_id_(kInvalidInstanceId) {
+}
+
+GattIdentifier::GattIdentifier(const GattIdentifier& other) {
+  device_address_ = other.device_address_;
+  is_primary_ = other.is_primary_;
+  service_uuid_ = other.service_uuid_;
+  char_uuid_ = other.char_uuid_;
+  desc_uuid_ = other.desc_uuid_;
+  service_instance_id_ = other.service_instance_id_;
+  service_instance_id_ = other.service_instance_id_;
+  char_instance_id_ = other.char_instance_id_;
+  desc_instance_id_ = other.desc_instance_id_;
+}
+
+GattIdentifier::GattIdentifier(
+    const std::string& device_address,
+    bool is_primary,
+    const UUID& service_uuid,
+    const UUID& characteristic_uuid,
+    const UUID& descriptor_uuid,
+    int service_instance_id,
+    int characteristic_instance_id,
+    int descriptor_instance_id)
+    : device_address_(device_address),
+      is_primary_(is_primary),
+      service_uuid_(service_uuid),
+      char_uuid_(characteristic_uuid),
+      desc_uuid_(descriptor_uuid),
+      service_instance_id_(service_instance_id),
+      char_instance_id_(characteristic_instance_id),
+      desc_instance_id_(descriptor_instance_id) {
+}
+
+GattIdentifier& GattIdentifier::operator=(const GattIdentifier& other) {
+  if (*this == other)
+    return *this;
+
+  device_address_ = other.device_address_;
+  is_primary_ = other.is_primary_;
+  service_uuid_ = other.service_uuid_;
+  char_uuid_ = other.char_uuid_;
+  desc_uuid_ = other.desc_uuid_;
+  service_instance_id_ = other.service_instance_id_;
+  char_instance_id_ = other.char_instance_id_;
+  desc_instance_id_ = other.desc_instance_id_;
+
+  return *this;
+}
+
+bool GattIdentifier::Equals(const GattIdentifier& other) const {
+  return (device_address_ == other.device_address_ &&
+      is_primary_ == other.is_primary_ &&
+      service_uuid_ == other.service_uuid_ &&
+      char_uuid_ == other.char_uuid_ &&
+      desc_uuid_ == other.desc_uuid_ &&
+      service_instance_id_ == other.service_instance_id_ &&
+      char_instance_id_ == other.char_instance_id_ &&
+      desc_instance_id_ == other.desc_instance_id_);
+}
+
+bool GattIdentifier::operator==(const GattIdentifier& rhs) const {
+  return Equals(rhs);
+}
+
+bool GattIdentifier::operator!=(const GattIdentifier& rhs) const {
+  return !Equals(rhs);
+}
+
+bool GattIdentifier::IsService() const {
+  return (service_instance_id_ != kInvalidInstanceId &&
+          char_instance_id_ == kInvalidInstanceId &&
+          desc_instance_id_ == kInvalidInstanceId);
+}
+
+bool GattIdentifier::IsCharacteristic() const {
+  return (service_instance_id_ != kInvalidInstanceId &&
+          char_instance_id_ != kInvalidInstanceId &&
+          desc_instance_id_ == kInvalidInstanceId);
+}
+
+bool GattIdentifier::IsDescriptor() const {
+  return (service_instance_id_ != kInvalidInstanceId &&
+          char_instance_id_ != kInvalidInstanceId &&
+          desc_instance_id_ != kInvalidInstanceId);
+}
+
+std::unique_ptr<GattIdentifier> GattIdentifier::GetOwningServiceId() const {
+  if (IsService())
+    return nullptr;
+
+  return CreateServiceId(
+      device_address_, service_instance_id_, service_uuid_, is_primary_);
+}
+
+std::unique_ptr<GattIdentifier>
+GattIdentifier::GetOwningCharacteristicId() const {
+  if (!IsDescriptor())
+    return nullptr;
+
+  std::unique_ptr<GattIdentifier> service_id = GetOwningServiceId();
+
+  return CreateCharacteristicId(char_instance_id_, char_uuid_, *service_id);
+}
+
+}  // namespace bluetooth
diff --git a/rtkbt/code/bt/service/common/bluetooth/gatt_identifier.h b/rtkbt/code/bt/service/common/bluetooth/gatt_identifier.h
new file mode 100755
index 0000000..00ebbef
--- /dev/null
+++ b/rtkbt/code/bt/service/common/bluetooth/gatt_identifier.h
@@ -0,0 +1,144 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#pragma once
+
+#include <memory>
+#include <string>
+
+#include <bluetooth/uuid.h>
+
+namespace bluetooth {
+
+// Used to uniquely identify a GATT object/attribute
+// (service/characteristic/descriptor/include entry) after it has been
+// registered with the stack. Each registered object will be assigned a GATT
+// identifier that the callers may use in future callbacks.
+//
+// For local services, the uniqueness of each identifier is guaranteed only
+// within the registered GATT server that they exist in.
+class GattIdentifier final {
+ public:
+  // Static initialization methods. These return NULL if invalid parameters are
+  // given.
+  static std::unique_ptr<GattIdentifier> CreateServiceId(
+      const std::string& device_address,
+      int id,
+      const UUID& uuid,
+      bool is_primary);
+  static std::unique_ptr<GattIdentifier> CreateCharacteristicId(
+      int id, const UUID& uuid,
+      const GattIdentifier& service_id);
+  static std::unique_ptr<GattIdentifier> CreateDescriptorId(
+      int id, const UUID& uuid,
+      const GattIdentifier& characteristic_id);
+
+  // Constructors and assignment operator.
+  GattIdentifier();
+  GattIdentifier(
+      const std::string& device_address,
+      bool is_primary,
+      const UUID& service_uuid,
+      const UUID& characteristic_uuid,
+      const UUID& descriptor_uuid,
+      int service_instance_id,
+      int characteristic_instance_id,
+      int descriptor_instance_id);
+  ~GattIdentifier() = default;
+  GattIdentifier(const GattIdentifier& other);
+  GattIdentifier& operator=(const GattIdentifier& other);
+
+
+  // Comparison function and operator.
+  bool Equals(const GattIdentifier& other) const;
+  bool operator==(const GattIdentifier& rhs) const;
+  bool operator!=(const GattIdentifier& rhs) const;
+
+  // Functions to verify the type of attribute represented by this identifier.
+  bool IsService() const;
+  bool IsCharacteristic() const;
+  bool IsDescriptor() const;
+
+  // For characteristics and descriptors, this returns the identifier of the
+  // owning service. For services, this returns NULL.
+  std::unique_ptr<GattIdentifier> GetOwningServiceId() const;
+
+  // For descriptors, this returns the identifier of the owning characteristic.
+  // For services and characteristics, this returns NULL.
+  std::unique_ptr<GattIdentifier> GetOwningCharacteristicId() const;
+
+  // Getters for internal fields.
+  const std::string& device_address() const { return device_address_; }
+  bool is_primary() const { return is_primary_; }
+  const UUID& service_uuid() const { return service_uuid_; }
+  const UUID& characteristic_uuid() const { return char_uuid_; }
+  const UUID& descriptor_uuid() const { return desc_uuid_; }
+  int service_instance_id() const { return service_instance_id_; }
+  int characteristic_instance_id() const { return char_instance_id_; }
+  int descriptor_instance_id() const { return desc_instance_id_; }
+
+ private:
+  friend struct std::hash<bluetooth::GattIdentifier>;
+
+  // NOTE: Don't forget to update the std::hash specialization below if you
+  // update any of the instance variables in this class.
+
+  // The BD_ADDR of the device associated with the attribute.
+  std::string device_address_;
+
+  // An instance ID value of -1 means that it is unitialized. For example, a
+  // service ID would have -1 for characteristic and descriptor instance IDs.
+  bool is_primary_;
+  UUID service_uuid_;
+  UUID char_uuid_;
+  UUID desc_uuid_;
+  int service_instance_id_;
+  int char_instance_id_;
+  int desc_instance_id_;
+};
+
+}  // namespace bluetooth
+
+// Custom std::hash specialization so that bluetooth::GattIdentifier can be used
+// as a key in std::unordered_map.
+namespace std {
+
+template<>
+struct hash<bluetooth::GattIdentifier> {
+  std::size_t operator()(const bluetooth::GattIdentifier& key) const {
+    std::size_t seed = 0;
+
+    hash_combine(seed, key.device_address_);
+    hash_combine(seed, key.is_primary_);
+    hash_combine(seed, key.service_uuid_);
+    hash_combine(seed, key.char_uuid_);
+    hash_combine(seed, key.desc_uuid_);
+    hash_combine(seed, key.service_instance_id_);
+    hash_combine(seed, key.char_instance_id_);
+    hash_combine(seed, key.desc_instance_id_);
+
+    return seed;
+  }
+
+ private:
+  template<typename T>
+  inline void hash_combine(std::size_t& seed, const T& v) const {
+    std::hash<T> hasher;
+    seed ^= hasher(v) + 0x9e3779b9 + (seed << 6) + (seed >> 2);
+  }
+};
+
+}  // namespace std
diff --git a/rtkbt/code/bt/service/common/bluetooth/low_energy_constants.h b/rtkbt/code/bt/service/common/bluetooth/low_energy_constants.h
new file mode 100755
index 0000000..0a72dbd
--- /dev/null
+++ b/rtkbt/code/bt/service/common/bluetooth/low_energy_constants.h
@@ -0,0 +1,125 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#pragma once
+
+#include <stdint.h>
+
+namespace bluetooth {
+
+// Defined here are various status codes that can be returned from the stack for
+// BLE operations.
+enum BLEStatus {
+  BLE_STATUS_SUCCESS = 0,
+  BLE_STATUS_ADV_ERROR_DATA_TOO_LARGE = 1,
+  BLE_STATUS_ADV_ERROR_TOO_MANY_ADVERTISERS = 2,
+  BLE_STATUS_ADV_ERROR_ALREADY_STARTED = 3,
+  BLE_STATUS_ADV_ERROR_FEATURE_UNSUPPORTED = 5,
+  BLE_STATUS_FAILURE = 0x101,
+};
+
+enum GATTError {
+  GATT_ERROR_NONE = 0,
+  GATT_ERROR_INVALID_HANDLE = 0x01,
+  GATT_ERROR_READ_NOT_PERMITTED = 0x02,
+  GATT_ERROR_WRITE_NOT_PERMITTED = 0x03,
+  GATT_ERROR_INVALID_PDU = 0x04,
+  GATT_ERROR_INSUFFICIENT_AUTHEN = 0x05,
+  GATT_ERROR_REQUEST_NOT_SUPPORTED = 0x06,
+  GATT_ERROR_INVALID_OFFSET = 0x07,
+  GATT_ERROR_INSUFFICIENT_AUTHOR = 0x08,
+  GATT_ERROR_PREP_QUEUE_FULL = 0x09,
+  GATT_ERROR_ATTRIBUTE_NOT_FOUND = 0x0a,
+  GATT_ERROR_ATTRIBUTE_NOT_LONG = 0x0b,
+  GATT_ERROR_INSUFFICIENT_KEY_SIZE = 0x0c,
+  GATT_ERROR_INVALID_ATTRIBUTE_LENGTH = 0x0d,
+  GATT_ERROR_UNLIKELY = 0x0e,
+  GATT_ERROR_INSUFFICIENT_ENCR = 0x0f,
+  GATT_ERROR_UNSUPPORTED_GRP_TYPE = 0x10,
+  GATT_ERROR_INSUFFICIENT_RESOURCES = 0x11,
+  GATT_ERROR_CCCD_IMPROPERLY_CONFIGURED = 0xFD,
+  GATT_ERROR_PROCEDURE_IN_PROGRESS = 0xFE,
+  GATT_ERROR_OUT_OF_RANGE = 0xFF
+};
+
+enum Transport {
+  TRANSPORT_AUTO = 0,
+  TRANSPORT_BREDR = 1,
+  TRANSPORT_LE = 2
+};
+
+// Android attribute permission values
+const uint16_t kAttributePermissionNone = 0x0;
+const uint16_t kAttributePermissionRead = 0x1;
+const uint16_t kAttributePermissionReadEncrypted = 0x2;
+const uint16_t kAttributePermissionReadEncryptedMITM = 0x4;
+const uint16_t kAttributePermissionWrite = 0x10;
+const uint16_t kAttributePermissionWriteEncrypted = 0x20;
+const uint16_t kAttributePermissionWriteEncryptedMITM = 0x40;
+const uint16_t kAttributePermissionWriteSigned = 0x80;
+const uint16_t kAttributePermissionWriteSignedMITM = 0x100;
+
+// GATT characteristic properties bit-field values (not including the
+// characteristic extended properties).
+const uint8_t kCharacteristicPropertyNone = 0x0;
+const uint8_t kCharacteristicPropertyBroadcast = 0x1;
+const uint8_t kCharacteristicPropertyRead = 0x2;
+const uint8_t kCharacteristicPropertyWriteNoResponse = 0x4;
+const uint8_t kCharacteristicPropertyWrite = 0x8;
+const uint8_t kCharacteristicPropertyNotify = 0x10;
+const uint8_t kCharacteristicPropertyIndicate = 0x20;
+const uint8_t kCharacteristicPropertySignedWrite = 0x40;
+const uint8_t kCharacteristicPropertyExtendedProps = 0x80;
+
+// Advertising interval for different modes.
+const int kAdvertisingIntervalHighMs = 1000;
+const int kAdvertisingIntervalMediumMs = 250;
+const int kAdvertisingIntervalLowMs = 100;
+
+// Add some randomness to the advertising min/max interval so the controller can
+// do some optimization.
+// TODO(armansito): I took this directly from packages/apps/Bluetooth but based
+// on code review comments this constant and the accompanying logic doesn't make
+// sense. Let's remove this constant and figure out how to properly calculate
+// the Max. Adv. Interval. (See http://b/24344075).
+const int kAdvertisingIntervalDeltaUnit = 10;
+
+// Advertising types (ADV_IND, ADV_SCAN_IND, etc.) that are exposed to
+// applications.
+const int kAdvertisingEventTypeConnectable = 0;
+const int kAdvertisingEventTypeScannable = 2;
+const int kAdvertisingEventTypeNonConnectable = 3;
+
+// Advertising channels. These should be kept the same as those defined in the
+// stack.
+const int kAdvertisingChannel37 = (1 << 0);
+const int kAdvertisingChannel38 = (1 << 1);
+const int kAdvertisingChannel39 = (1 << 2);
+const int kAdvertisingChannelAll =
+    (kAdvertisingChannel37 | kAdvertisingChannel38 | kAdvertisingChannel39);
+
+// Various Extended Inquiry Response fields types that are used for advertising
+// data fields as defined in the Core Specification Supplement.
+const uint8_t kEIRTypeFlags = 0x01;
+const uint8_t kEIRTypeIncomplete16BitUUIDs = 0x02;
+const uint8_t kEIRTypeComplete16BitUUIDs = 0x03;
+const uint8_t kEIRTypeIncomplete32BitUUIDs = 0x04;
+const uint8_t kEIRTypeComplete32BitUUIDs = 0x05;
+const uint8_t kEIRTypeIncomplete128BitUUIDs = 0x06;
+const uint8_t kEIRTypeComplete128BitUUIDs = 0x07;
+const uint8_t kEIRTypeManufacturerSpecificData = 0xFF;
+
+}  // namespace bluetooth
diff --git a/rtkbt/code/bt/service/common/bluetooth/scan_filter.cpp b/rtkbt/code/bt/service/common/bluetooth/scan_filter.cpp
new file mode 100755
index 0000000..beeeedc
--- /dev/null
+++ b/rtkbt/code/bt/service/common/bluetooth/scan_filter.cpp
@@ -0,0 +1,98 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#include "service/common/bluetooth/scan_filter.h"
+
+#include "service/common/bluetooth/util/address_helper.h"
+
+namespace bluetooth {
+
+ScanFilter::ScanFilter(const ScanFilter& other) {
+  device_name_ = other.device_name_;
+  device_address_ = other.device_address_;
+
+  if (other.service_uuid_)
+    service_uuid_.reset(new UUID(*other.service_uuid_));
+
+  if (other.service_uuid_mask_)
+    service_uuid_mask_.reset(new UUID(*other.service_uuid_mask_));
+}
+
+ScanFilter& ScanFilter::operator=(const ScanFilter& other) {
+  device_name_ = other.device_name_;
+  device_address_ = other.device_address_;
+
+  if (other.service_uuid_)
+    service_uuid_.reset(new UUID(*other.service_uuid_));
+  else
+    service_uuid_ = nullptr;
+
+  if (other.service_uuid_mask_)
+    service_uuid_mask_.reset(new UUID(*other.service_uuid_mask_));
+  else
+    service_uuid_mask_ = nullptr;
+
+  return *this;
+}
+
+bool ScanFilter::SetDeviceAddress(const std::string& device_address) {
+  if (!util::IsAddressValid(device_address))
+    return false;
+
+  device_address_ = device_address;
+  return true;
+}
+
+void ScanFilter::SetServiceUuid(const UUID& service_uuid) {
+  service_uuid_.reset(new UUID(service_uuid));
+  service_uuid_mask_.reset();
+}
+
+void ScanFilter::SetServiceUuidWithMask(const UUID& service_uuid,
+                                        const UUID& mask) {
+  service_uuid_.reset(new UUID(service_uuid));
+  service_uuid_mask_.reset(new UUID(mask));
+}
+
+bool ScanFilter::operator==(const ScanFilter& rhs) const {
+  if (device_name_ != rhs.device_name_)
+    return false;
+
+  if (device_address_ != rhs.device_address_)
+    return false;
+
+  // Both must be either NULL or non-NULL. If only one of them is NULL, then
+  // return false.
+  if (!!service_uuid_ != !!rhs.service_uuid_)
+    return false;
+
+  if (service_uuid_ && rhs.service_uuid_ &&
+      *service_uuid_ != *rhs.service_uuid_)
+    return false;
+
+  // Both must be either NULL or non-NULL. If only one of them is NULL, then
+  // return false.
+  if (!!service_uuid_mask_ != !!rhs.service_uuid_mask_)
+    return false;
+
+  if (service_uuid_mask_ && rhs.service_uuid_mask_ &&
+      *service_uuid_mask_ != *rhs.service_uuid_mask_)
+    return false;
+
+  return true;
+}
+
+}  // namespace bluetooth
diff --git a/rtkbt/code/bt/service/common/bluetooth/scan_filter.h b/rtkbt/code/bt/service/common/bluetooth/scan_filter.h
new file mode 100755
index 0000000..5812b26
--- /dev/null
+++ b/rtkbt/code/bt/service/common/bluetooth/scan_filter.h
@@ -0,0 +1,77 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#pragma once
+
+#include <memory>
+
+#include <bluetooth/uuid.h>
+
+namespace bluetooth {
+
+// Used for filtering scan results by allowing clients to restrict scan results
+// to only those that are of interest to them.
+class ScanFilter {
+ public:
+  ScanFilter() = default;
+  ~ScanFilter() = default;
+
+  // Copy constructor and assignment operator.
+  ScanFilter(const ScanFilter& other);
+  ScanFilter& operator=(const ScanFilter& other);
+
+  // The device name used while filtering scan results.
+  const std::string& device_name() const { return device_name_; }
+  void set_device_name(const std::string& name) { device_name_ = name; }
+
+  // The device address used while filtering scan results. Address should be in
+  // the XX:XX:XX:XX:XX:XX where X is a hexadecimal digit.
+  const std::string& device_address() const { return device_address_; }
+
+  // Sets the device address used for filtering. Returns false if
+  // |device_address| is in an illegal format.
+  bool SetDeviceAddress(const std::string& device_address);
+
+  // The service UUID and its mask used while filtering scan results. See
+  // SetServiceUuidWithMask for what this mask does. The raw pointer returned
+  // from these getters belongs to the ScanFilter object. nullptr will be
+  // returned if these fields have not been set on this filter.
+  UUID* service_uuid() const { return service_uuid_.get(); }
+  UUID* service_uuid_mask() const { return service_uuid_mask_.get(); }
+
+  // Sets the service UUID for this filter.
+  void SetServiceUuid(const UUID& service_uuid);
+
+  // Sets the service UUID for this filter with a 128-bit mask. The mask allows
+  // the caller to partially filter scanned service UUIDs. For any of the
+  // 128-bits of a UUID, set the corresponding bit in the mask to 1 to match the
+  // advertised value, and 0 to ignore that bit.
+  void SetServiceUuidWithMask(const UUID& service_uuid, const UUID& mask);
+
+  // Comparison operator.
+  bool operator==(const ScanFilter& rhs) const;
+
+ private:
+  std::string device_name_;
+  std::string device_address_;
+
+  std::unique_ptr<UUID> service_uuid_;
+  std::unique_ptr<UUID> service_uuid_mask_;
+
+  // TODO(armansito): Add service and manufacturer data filter fields.
+};
+
+}  // namespace bluetooth
diff --git a/rtkbt/code/bt/service/common/bluetooth/scan_result.cpp b/rtkbt/code/bt/service/common/bluetooth/scan_result.cpp
new file mode 100755
index 0000000..7656778
--- /dev/null
+++ b/rtkbt/code/bt/service/common/bluetooth/scan_result.cpp
@@ -0,0 +1,49 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#include "service/common/bluetooth/scan_result.h"
+
+#include <base/logging.h>
+
+#include "service/common/bluetooth/util/address_helper.h"
+
+
+namespace bluetooth {
+
+ScanResult::ScanResult(const std::string& device_address,
+                       const std::vector<uint8_t> scan_record,
+                       int rssi)
+    : device_address_(device_address),
+      scan_record_(scan_record),
+      rssi_(rssi) {
+  CHECK(util::IsAddressValid(device_address)) << "Invalid BD_ADDR given: "
+                                              << device_address;
+}
+
+bool ScanResult::operator==(const ScanResult& rhs) const {
+  if (device_address_ != rhs.device_address_)
+    return false;
+
+  if (scan_record_ != rhs.scan_record_)
+    return false;
+
+  if (rssi_ != rhs.rssi_)
+    return false;
+
+  return true;
+}
+
+}  // namespace bluetooth
diff --git a/rtkbt/code/bt/service/common/bluetooth/scan_result.h b/rtkbt/code/bt/service/common/bluetooth/scan_result.h
new file mode 100755
index 0000000..f9fdbf3
--- /dev/null
+++ b/rtkbt/code/bt/service/common/bluetooth/scan_result.h
@@ -0,0 +1,55 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#pragma once
+
+#include <stdint.h>
+
+#include <string>
+#include <vector>
+
+namespace bluetooth {
+
+// ScanResult represents a single Bluetooth LE device scan result. It
+// encapsulates information about discovered LE devices.
+class ScanResult {
+ public:
+  ScanResult(const std::string& device_address,
+             const std::vector<uint8_t> scan_record,
+             int rssi);
+  ScanResult() = default;
+  ~ScanResult() = default;
+
+  // Returns the remote BD_ADDR associated with this scan result.
+  const std::string& device_address() const { return device_address_; }
+
+  // Returns the scan record (advertising +scan-response data) associated with
+  // this scan result.
+  const std::vector<uint8_t>& scan_record() const { return scan_record_; }
+
+  // Returns the RSSI associated with this scan result.
+  int rssi() const { return rssi_; }
+
+  // Comparison operator.
+  bool operator==(const ScanResult& rhs) const;
+
+ private:
+  std::string device_address_;
+  std::vector<uint8_t> scan_record_;
+  int rssi_;
+};
+
+}  // namespace bluetooth
diff --git a/rtkbt/code/bt/service/common/bluetooth/scan_settings.cpp b/rtkbt/code/bt/service/common/bluetooth/scan_settings.cpp
new file mode 100755
index 0000000..2c807c0
--- /dev/null
+++ b/rtkbt/code/bt/service/common/bluetooth/scan_settings.cpp
@@ -0,0 +1,65 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#include "service/common/bluetooth/scan_settings.h"
+
+namespace bluetooth {
+
+ScanSettings::ScanSettings()
+    : mode_(MODE_LOW_POWER),
+      callback_type_(CALLBACK_TYPE_ALL_MATCHES),
+      result_type_(RESULT_TYPE_FULL),
+      match_count_per_filter_(MATCH_COUNT_MAX_ADVERTISEMENTS) {
+}
+
+ScanSettings::ScanSettings(
+    Mode mode,
+    CallbackTypeBitField callback_type,
+    ResultType result_type,
+    base::TimeDelta report_delay_ms,
+    MatchMode match_mode,
+    MatchCount match_count_per_filter)
+    : mode_(mode),
+      callback_type_(callback_type),
+      result_type_(result_type),
+      report_delay_ms_(report_delay_ms),
+      match_mode_(match_mode),
+      match_count_per_filter_(match_count_per_filter) {
+}
+
+bool ScanSettings::operator==(const ScanSettings& rhs) const {
+  if (mode_ != rhs.mode_)
+    return false;
+
+  if (callback_type_ != rhs.callback_type_)
+    return false;
+
+  if (result_type_ != rhs.result_type_)
+    return false;
+
+  if (report_delay_ms_ != rhs.report_delay_ms_)
+    return false;
+
+  if (match_mode_ != rhs.match_mode_)
+    return false;
+
+  if (match_count_per_filter_ != rhs.match_count_per_filter_)
+    return false;
+
+  return true;
+}
+
+}  // namespace bluetooth
diff --git a/rtkbt/code/bt/service/common/bluetooth/scan_settings.h b/rtkbt/code/bt/service/common/bluetooth/scan_settings.h
new file mode 100755
index 0000000..8f183b6
--- /dev/null
+++ b/rtkbt/code/bt/service/common/bluetooth/scan_settings.h
@@ -0,0 +1,164 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#pragma once
+
+#include <base/time/time.h>
+
+namespace bluetooth {
+
+// ScanSettings encapsulates Bluetooth LE device scan parameters. This is the
+// native equivalent of the Android framework class defined in
+// frameworks/base/core/java/android/bluetooth/le/ScanSettings.java.
+class ScanSettings {
+ public:
+  // A scan mode describes the power consumption involved in LE scans.
+  enum Mode {
+    // A special Bluetooth LE scan mode. Applications using this scan mode will
+    // passively listen for other scan results without starting BLE scans
+    // themselves.
+    MODE_OPPORTUNISTIC = -1,
+
+    // Perform Bluetooth LE scan in low power mode. This is the default scan
+    // mode as it consumes the least power.
+    MODE_LOW_POWER = 0,
+
+    // Perform Bluetooth LE scan in balanced power mode. Scan results are
+    // returned at a rate that provides a good trade-off between scan frequency
+    // and power consumption.
+    MODE_BALANCED = 1,
+
+    // Scan using the highest duty cycle. It's recommended to only use this mode
+    // when the application is running in the foreground.
+    MODE_LOW_LATENCY = 2,
+  };
+
+  // A callback type describes how scan results will be reported to applications
+  // in asynchronous callbacks.
+  enum CallbackType {
+    // Trigger a callback for every Bluetooth advertisement found that matches
+    // the filter criteria. If no filter is active, all advertisement packets
+    // are reported.
+    CALLBACK_TYPE_ALL_MATCHES = 1,
+
+    // A result callback is only triggered for the first advertisement packet
+    // received that matches the filter criteria. This requires that the
+    // hardware support the offloaded filtering feature.
+    CALLBACK_TYPE_FIRST_MATCH = 2,
+
+    // Receive a callback when advertisements are no longer received from a
+    // device that has been previously reported by a first match callback. This
+    // requires that the hardware support the offloaded filtering feature.
+    CALLBACK_TYPE_MATCH_LOST = 4,
+  };
+  using CallbackTypeBitField = int;
+
+  // Determines how many advertisements to match per filter.
+  enum MatchCount {
+    // Match one advertisement per filter.
+    MATCH_COUNT_ONE_ADVERTISEMENT = 1,
+
+    // Match few advertisements per filter depending on the current capability
+    // and availability of hardware resources.
+    MATCH_COUNT_FEW_ADVERTISEMENTS = 2,
+
+    // Match as many advertisements per filter as the underlying hardware can
+    // allow, depending on the current capability and availability of hardware
+    // resources.
+    MATCH_COUNT_MAX_ADVERTISEMENTS = 3,
+  };
+
+  // Hardware filter match mode.
+  enum MatchMode {
+    // In aggressive mode the hardware will determine a match sooner even with
+    // feeble signal strength and a low number of sightings in a duration.
+    MATCH_MODE_AGGRESSIVE = 1,
+
+    // In sticky mode a higher threshold of signal strength and sightings is
+    // required before a scan result is reported by the hardware.
+    MATCH_MODE_STICKY = 2,
+  };
+
+  // Scan result type describes the contents of each scan result.
+  enum ResultType {
+    // Request full scan results which contain the device name, RSSI,
+    // advertising data, scan response data, and the scan timestamp.
+    RESULT_TYPE_FULL = 0,
+
+    // Request abbreviated scan results which contain the device name, RSSI, and
+    // scan timestamp.
+    // Note: It is possible for an application to get more scan results than it
+    // asked for, if there are multiple apps using this type.
+    RESULT_TYPE_ABBREVIATED = 1,
+  };
+
+  // The default constructor sets all fields to defaults:
+  //   mode: MODE_LOW_POWER
+  //   callback_type: CALLBACK_TYPE_ALL_MATCHES
+  //   result_type: RESULT_TYPE_FULL
+  //   report_delay_ms: 0
+  //   match_mode: MATCH_MODE_AGGRESSIVE
+  //   match_count_per_filter: MATCH_COUNT_MAX_ADVERTISEMENTS
+  ScanSettings();
+  ScanSettings(Mode mode,
+               CallbackTypeBitField callback_type,
+               ResultType result_type,
+               base::TimeDelta report_delay_ms,
+               MatchMode match_mode,
+               MatchCount match_count_per_filter);
+  ~ScanSettings() = default;
+
+  // Returns the scan mode.
+  Mode mode() const { return mode_; }
+  void set_mode(Mode mode) { mode_ = mode; }
+
+  // Returns the callback type.
+  CallbackTypeBitField callback_type() const { return callback_type_; }
+  void set_callback_type(CallbackTypeBitField type) { callback_type_ = type; }
+
+  // Returns the scan result type.
+  ResultType result_type() const { return result_type_; }
+  void set_result_type(ResultType type) { result_type_ = type; }
+
+  // Returns the report delay value in milliseconds.
+  const base::TimeDelta& report_delay() const { return report_delay_ms_; }
+  void set_report_delay(const base::TimeDelta& delay) {
+    report_delay_ms_ = delay;
+  }
+
+  // Returns the hardware filter match mode.
+  MatchMode match_mode() const { return match_mode_; }
+  void set_match_mode(MatchMode mode) { match_mode_ = mode; }
+
+  // Returns the count of advertisements to match per filter.
+  MatchCount match_count_per_filter() const { return match_count_per_filter_; }
+  void set_match_count_per_filter(MatchCount count) {
+    match_count_per_filter_ = count;
+  }
+
+  // Comparison operator.
+  bool operator==(const ScanSettings& rhs) const;
+
+ private:
+  Mode mode_;
+  CallbackTypeBitField callback_type_;
+  ResultType result_type_;
+  base::TimeDelta report_delay_ms_;
+  MatchMode match_mode_;
+  MatchCount match_count_per_filter_;
+};
+
+}  // namespace bluetooth
diff --git a/rtkbt/code/bt/service/common/bluetooth/util/address_helper.cpp b/rtkbt/code/bt/service/common/bluetooth/util/address_helper.cpp
new file mode 100755
index 0000000..51f8962
--- /dev/null
+++ b/rtkbt/code/bt/service/common/bluetooth/util/address_helper.cpp
@@ -0,0 +1,58 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#include "service/common/bluetooth/util/address_helper.h"
+
+#include <cstdlib>
+
+#include <base/logging.h>
+#include <base/strings/string_split.h>
+
+namespace util {
+
+bool IsAddressValid(const std::string& address) {
+  bt_bdaddr_t addr;
+  return BdAddrFromString(address, &addr);
+}
+
+bool BdAddrFromString(const std::string& address, bt_bdaddr_t* out_addr) {
+  CHECK(out_addr);
+
+  if (address.length() != 17)
+    return false;
+
+  std::vector<std::string> byte_tokens = base::SplitString(
+      address, ":", base::TRIM_WHITESPACE, base::SPLIT_WANT_ALL);
+
+  if (byte_tokens.size() != 6)
+    return false;
+
+  for (int i = 0; i < 6; i++) {
+    const auto& token = byte_tokens[i];
+
+    if (token.length() != 2)
+      return false;
+
+    char* temp = nullptr;
+    out_addr->address[i] = strtol(token.c_str(), &temp, 16);
+    if (*temp != '\0')
+      return false;
+  }
+
+  return true;
+}
+
+}  // namespace util
diff --git a/rtkbt/code/bt/service/common/bluetooth/util/address_helper.h b/rtkbt/code/bt/service/common/bluetooth/util/address_helper.h
new file mode 100755
index 0000000..d71d907
--- /dev/null
+++ b/rtkbt/code/bt/service/common/bluetooth/util/address_helper.h
@@ -0,0 +1,36 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#pragma once
+
+#include <hardware/bluetooth.h>
+#include <string>
+
+namespace util {
+
+// Checks if the given string representing a Bluetooth device address (BD_ADDR)
+// is correctly formatted. The correct formatting is of the form
+//
+//   XX:XX:XX:XX:XX:XX
+//
+// where X is an alpha-numeric character.
+bool IsAddressValid(const std::string& address);
+
+// Populates a bt_bdaddr_t from a given string. Returns false if the data is
+// invalid.
+bool BdAddrFromString(const std::string& address, bt_bdaddr_t* out_addr);
+
+}  // namespace util
diff --git a/rtkbt/code/bt/service/common/bluetooth/util/atomic_string.cpp b/rtkbt/code/bt/service/common/bluetooth/util/atomic_string.cpp
new file mode 100755
index 0000000..0084700
--- /dev/null
+++ b/rtkbt/code/bt/service/common/bluetooth/util/atomic_string.cpp
@@ -0,0 +1,36 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#include "service/common/bluetooth/util/atomic_string.h"
+
+namespace util {
+
+AtomicString::AtomicString(const std::string& str)
+    : str_(str) {
+}
+
+std::string AtomicString::Get() const {
+  std::mutex* mutex = const_cast<std::mutex*>(&lock_);
+  std::lock_guard<std::mutex> lock(*mutex);
+  return str_;
+}
+
+void AtomicString::Set(const std::string& str) {
+  std::lock_guard<std::mutex> lock(lock_);
+  str_ = str;
+}
+
+}  // namespace util
diff --git a/rtkbt/code/bt/service/common/bluetooth/util/atomic_string.h b/rtkbt/code/bt/service/common/bluetooth/util/atomic_string.h
new file mode 100755
index 0000000..90e911f
--- /dev/null
+++ b/rtkbt/code/bt/service/common/bluetooth/util/atomic_string.h
@@ -0,0 +1,40 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#include <mutex>
+#include <string>
+
+#include <base/macros.h>
+
+namespace util {
+
+// A simple atomic container class for std::string.
+class AtomicString final {
+ public:
+  AtomicString(const std::string& str);
+  ~AtomicString() = default;
+
+  std::string Get() const;
+  void Set(const std::string& str);
+
+ private:
+  std::mutex lock_;
+  std::string str_;
+
+  DISALLOW_COPY_AND_ASSIGN(AtomicString);
+};
+
+}  // namespace util
diff --git a/rtkbt/code/bt/service/common/bluetooth/uuid.cpp b/rtkbt/code/bt/service/common/bluetooth/uuid.cpp
new file mode 100755
index 0000000..575b055
--- /dev/null
+++ b/rtkbt/code/bt/service/common/bluetooth/uuid.cpp
@@ -0,0 +1,177 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#include "service/common/bluetooth/uuid.h"
+
+#include <algorithm>
+#include <array>
+#include <stack>
+#include <string>
+
+#include <base/rand_util.h>
+#include <base/strings/stringprintf.h>
+#include <base/strings/string_split.h>
+#include <base/strings/string_util.h>
+
+namespace bluetooth {
+
+namespace {
+
+const UUID::UUID128Bit kSigBaseUUID = {
+  { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00,
+    0x80, 0x00, 0x00, 0x80, 0x5f, 0x9b, 0x34, 0xfb }
+};
+
+}  // namespace
+
+// static
+UUID UUID::GetRandom() {
+  UUID128Bit bytes;
+  base::RandBytes(bytes.data(), bytes.size());
+  return UUID(bytes);
+}
+
+// static
+UUID UUID::GetNil() {
+  UUID128Bit bytes;
+  bytes.fill(0);
+  return UUID(bytes);
+}
+
+// static
+UUID UUID::GetMax() {
+  UUID128Bit bytes;
+  bytes.fill(1);
+  return UUID(bytes);
+}
+
+void UUID::InitializeDefault() {
+  // Initialize to Bluetooth SIG base UUID.
+  id_ = kSigBaseUUID;
+  is_valid_ = true;
+}
+
+UUID::UUID() {
+  InitializeDefault();
+}
+
+UUID::UUID(std::string uuid) {
+  InitializeDefault();
+  is_valid_ = false;
+
+  if (uuid.empty())
+    return;
+
+  if (uuid.size() < 11 && uuid.find("0x") == 0)
+    uuid = uuid.substr(2);
+
+  if (uuid.size() != 4 && uuid.size() != 8 && uuid.size() != 36)
+    return;
+
+  if (uuid.size() == 36) {
+    if (uuid[8] != '-')
+      return;
+    if (uuid[13] != '-')
+      return;
+    if (uuid[18] != '-')
+      return;
+    if (uuid[23] != '-')
+      return;
+
+    std::vector<std::string> tokens = base::SplitString(
+        uuid, "-", base::TRIM_WHITESPACE, base::SPLIT_WANT_ALL);
+
+    if (tokens.size() != 5)
+      return;
+
+    uuid = base::JoinString(tokens, "");
+  }
+
+  const int start_index = uuid.size() == 4 ? 2 : 0;
+  const size_t copy_size = std::min(id_.size(), uuid.size() / 2);
+  for (size_t i = 0; i < copy_size; ++i) {
+      std::string octet_text(uuid, i * 2, 2);
+      char* temp = nullptr;
+      id_[start_index + i] = strtol(octet_text.c_str(), &temp, 16);
+      if (*temp != '\0')
+        return;
+  }
+
+  is_valid_ = true;
+}
+
+UUID::UUID(const bt_uuid_t& uuid) {
+  std::reverse_copy(uuid.uu, uuid.uu + sizeof(uuid.uu), id_.begin());
+  is_valid_ = true;
+}
+
+UUID::UUID(const UUID16Bit& uuid) {
+  InitializeDefault();
+  std::copy(uuid.begin(), uuid.end(), id_.begin() + kNumBytes16);
+}
+
+UUID::UUID(const UUID32Bit& uuid) {
+  InitializeDefault();
+  std::copy(uuid.begin(), uuid.end(), id_.begin());
+}
+
+UUID::UUID(const UUID128Bit& uuid) : id_(uuid), is_valid_(true) {}
+
+UUID::UUID128Bit UUID::GetFullBigEndian() const {
+  return id_;
+}
+
+UUID::UUID128Bit UUID::GetFullLittleEndian() const {
+  UUID::UUID128Bit ret;
+  std::reverse_copy(id_.begin(), id_.end(), ret.begin());
+  return ret;
+}
+
+bt_uuid_t UUID::GetBlueDroid() const {
+  bt_uuid_t ret;
+  std::reverse_copy(id_.begin(), id_.end(), ret.uu);
+  return ret;
+}
+
+std::string UUID::ToString() const {
+  return base::StringPrintf(
+      "%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x",
+      id_[0], id_[1], id_[2], id_[3],
+      id_[4], id_[5], id_[6], id_[7],
+      id_[8], id_[9], id_[10], id_[11],
+      id_[12], id_[13], id_[14], id_[15]);
+}
+
+size_t UUID::GetShortestRepresentationSize() const {
+  if (memcmp(id_.data() + 4, kSigBaseUUID.data() + 4, id_.size() - 4) != 0)
+    return kNumBytes128;
+
+  if (id_[0] == 0 && id_[1] == 0)
+    return kNumBytes16;
+
+  return kNumBytes32;
+}
+
+bool UUID::operator<(const UUID& rhs) const {
+  return std::lexicographical_compare(id_.begin(), id_.end(), rhs.id_.begin(),
+                                      rhs.id_.end());
+}
+
+bool UUID::operator==(const UUID& rhs) const {
+  return std::equal(id_.begin(), id_.end(), rhs.id_.begin());
+}
+
+}  // namespace bluetooth
diff --git a/rtkbt/code/bt/service/common/bluetooth/uuid.h b/rtkbt/code/bt/service/common/bluetooth/uuid.h
new file mode 100755
index 0000000..569687b
--- /dev/null
+++ b/rtkbt/code/bt/service/common/bluetooth/uuid.h
@@ -0,0 +1,110 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#pragma once
+
+#include <array>
+#include <string>
+
+// TODO: Find places that break include what you use and remove this.
+#include <base/logging.h>
+#include <hardware/bluetooth.h>
+
+namespace bluetooth {
+
+class UUID {
+ public:
+  static constexpr size_t kNumBytes128 = 16;
+  static constexpr size_t kNumBytes32 = 4;
+  static constexpr size_t kNumBytes16 = 2;
+
+  typedef std::array<uint8_t, kNumBytes16> UUID16Bit;
+  typedef std::array<uint8_t, kNumBytes32> UUID32Bit;
+  typedef std::array<uint8_t, kNumBytes128> UUID128Bit;
+
+  // Creates and returns a random 128-bit UUID.
+  static UUID GetRandom();
+
+  // Creates and returns a UUID in which all 128 bits are equal to 0.
+  static UUID GetNil();
+
+  // Creates and returns a UUID in which all 128 bits are equal to 1.
+  static UUID GetMax();
+
+  // Construct a Bluetooth 'base' UUID.
+  UUID();
+
+  // BlueDroid constructor.
+  explicit UUID(const bt_uuid_t& uuid);
+
+  // String constructor. Only hex ASCII accepted.
+  explicit UUID(std::string uuid);
+
+  // std::array variants constructors.
+  explicit UUID(const UUID16Bit& uuid);
+  explicit UUID(const UUID32Bit& uuid);
+  explicit UUID(const UUID128Bit& uuid);
+
+  // Provide the full network-byte-ordered blob.
+  UUID128Bit GetFullBigEndian() const;
+
+  // Provide blob in Little endian (BlueDroid expects this).
+  UUID128Bit GetFullLittleEndian() const;
+
+  // Helper for bluedroid LE type.
+  bt_uuid_t GetBlueDroid() const;
+
+  // Returns a string representation for the UUID.
+  std::string ToString() const;
+
+  // Returns whether or not this UUID was initialized correctly.
+  bool is_valid() const { return is_valid_; }
+
+  // Returns the shortest possible representation of this UUID in bytes.
+  size_t GetShortestRepresentationSize() const;
+
+  bool operator<(const UUID& rhs) const;
+  bool operator==(const UUID& rhs) const;
+  inline bool operator!=(const UUID& rhs) const {
+    return !(*this == rhs);
+  }
+
+ private:
+  void InitializeDefault();
+
+  // Network-byte-ordered ID.
+  UUID128Bit id_;
+
+  // True if this UUID was initialized with a correct representation.
+  bool is_valid_;
+};
+
+}  // namespace bluetooth
+
+// Custom std::hash specialization so that bluetooth::UUID can be used as a key
+// in std::unordered_map.
+namespace std {
+
+template<>
+struct hash<bluetooth::UUID> {
+  std::size_t operator()(const bluetooth::UUID& key) const {
+    const auto& uuid_bytes = key.GetFullBigEndian();
+    std::hash<std::string> hash_fn;
+    return hash_fn(std::string((char *)uuid_bytes.data(), uuid_bytes.size()));
+  }
+};
+
+}  // namespace std
diff --git a/rtkbt/code/bt/service/daemon.cpp b/rtkbt/code/bt/service/daemon.cpp
new file mode 100755
index 0000000..0439c36
--- /dev/null
+++ b/rtkbt/code/bt/service/daemon.cpp
@@ -0,0 +1,182 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#include "service/daemon.h"
+
+#include <memory>
+
+#include <base/logging.h>
+
+#include "service/adapter.h"
+#include "service/hal/bluetooth_gatt_interface.h"
+#include "service/hal/bluetooth_interface.h"
+#include "service/ipc/ipc_manager.h"
+#include "service/settings.h"
+
+namespace bluetooth {
+
+namespace {
+
+// The global Daemon instance.
+Daemon* g_daemon = nullptr;
+
+class DaemonImpl : public Daemon {
+ public:
+  DaemonImpl() : initialized_(false) {
+  }
+
+  ~DaemonImpl() override {
+    if (!initialized_)
+      return;
+
+    CleanUpBluetoothStack();
+  }
+
+  void StartMainLoop() override {
+    message_loop_->Run();
+  }
+
+  Settings* GetSettings() const override {
+    return settings_.get();
+  }
+
+  base::MessageLoop* GetMessageLoop() const override {
+    return message_loop_.get();
+  }
+
+ private:
+  bool StartUpBluetoothInterfaces() {
+    if (!hal::BluetoothInterface::Initialize())
+      goto failed;
+
+    if (!hal::BluetoothGattInterface::Initialize())
+      goto failed;
+
+    return true;
+
+  failed:
+    ShutDownBluetoothInterfaces();
+    return false;
+  }
+
+  void ShutDownBluetoothInterfaces() {
+    if (hal::BluetoothGattInterface::IsInitialized())
+      hal::BluetoothGattInterface::CleanUp();
+    if (hal::BluetoothInterface::IsInitialized())
+      hal::BluetoothInterface::CleanUp();
+  }
+
+  void CleanUpBluetoothStack() {
+    // The Adapter object needs to be cleaned up before the HAL interfaces.
+    ipc_manager_.reset();
+    adapter_.reset();
+    ShutDownBluetoothInterfaces();
+  }
+
+  bool SetUpIPC() {
+    // If an IPC socket path was given, initialize IPC with it. Otherwise
+    // initialize Binder IPC.
+    if (settings_->UseSocketIPC()) {
+      if (!ipc_manager_->Start(ipc::IPCManager::TYPE_LINUX, nullptr)) {
+        LOG(ERROR) << "Failed to set up UNIX domain-socket IPCManager";
+        return false;
+      }
+    } else if (!ipc_manager_->Start(ipc::IPCManager::TYPE_BINDER, nullptr)) {
+      LOG(ERROR) << "Failed to set up Binder IPCManager";
+      return false;
+    }
+
+    return true;
+  }
+
+  bool Init() override {
+    CHECK(!initialized_);
+    message_loop_.reset(new base::MessageLoop());
+
+    settings_.reset(new Settings());
+    if (!settings_->Init()) {
+      LOG(ERROR) << "Failed to set up Settings";
+      return false;
+    }
+
+    if (!StartUpBluetoothInterfaces()) {
+      LOG(ERROR) << "Failed to set up HAL Bluetooth interfaces";
+      return false;
+    }
+
+    adapter_ = Adapter::Create();
+    ipc_manager_.reset(new ipc::IPCManager(adapter_.get()));
+
+    if (!SetUpIPC()) {
+      CleanUpBluetoothStack();
+      return false;
+    }
+
+    initialized_ = true;
+    LOG(INFO) << "Daemon initialized";
+
+    return true;
+  }
+
+  bool initialized_;
+  std::unique_ptr<base::MessageLoop> message_loop_;
+  std::unique_ptr<Settings> settings_;
+  std::unique_ptr<Adapter> adapter_;
+  std::unique_ptr<ipc::IPCManager> ipc_manager_;
+
+  DISALLOW_COPY_AND_ASSIGN(DaemonImpl);
+};
+
+}  // namespace
+
+// static
+bool Daemon::Initialize() {
+  CHECK(!g_daemon);
+
+  g_daemon = new DaemonImpl();
+  if (g_daemon->Init())
+    return true;
+
+  LOG(ERROR) << "Failed to initialize the Daemon object";
+
+  delete g_daemon;
+  g_daemon = nullptr;
+
+  return false;
+}
+
+// static
+void Daemon::ShutDown() {
+  CHECK(g_daemon);
+  delete g_daemon;
+  g_daemon = nullptr;
+}
+
+// static
+void Daemon::InitializeForTesting(Daemon* test_daemon) {
+  CHECK(test_daemon);
+  CHECK(!g_daemon);
+
+  g_daemon = test_daemon;
+}
+
+// static
+Daemon* Daemon::Get() {
+  CHECK(g_daemon);
+  return g_daemon;
+}
+
+}  // namespace bluetooth
diff --git a/rtkbt/code/bt/service/daemon.h b/rtkbt/code/bt/service/daemon.h
new file mode 100755
index 0000000..c792dfc
--- /dev/null
+++ b/rtkbt/code/bt/service/daemon.h
@@ -0,0 +1,74 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#pragma once
+
+#include <base/macros.h>
+#include <base/message_loop/message_loop.h>
+
+namespace ipc {
+class IPCManager;
+}  // namespace ipc
+
+namespace bluetooth {
+
+class CoreStack;
+class Settings;
+
+// The Daemon class is a singleton that represents the root of the ownership
+// hierarchy. The single instance sets up and owns the main event loop, the IPC
+// handlers, global Settings, and the core Bluetooth stack.
+class Daemon {
+ public:
+  // Initializes the daemon. This must be called to at the start of the
+  // application to set up the global daemon instance and everything it manages.
+  // Returns false in case of a failure.
+  static bool Initialize();
+
+  // Cleans up all the resources associated with the global Daemon object.
+  static void ShutDown();
+
+  // Assigns the global Daemon instance for testing. Should only be called from
+  // test code.
+  static void InitializeForTesting(Daemon* test_daemon);
+
+  // Returns the singleton Daemon instance. All classes can interact with the
+  // Daemon, obtain its resources etc using this getter.
+  static Daemon* Get();
+
+  // The global Settings object. All classes have direct access to this through
+  // the Daemon object.
+  virtual Settings* GetSettings() const  = 0;
+
+  // The main event loop. This should be used for any events and delayed tasks
+  // that should be executed on the daemon's main thread.
+  virtual base::MessageLoop* GetMessageLoop() const = 0;
+
+  // Starts the daemon's main loop.
+  virtual void StartMainLoop() = 0;
+
+ protected:
+  Daemon() = default;
+  virtual ~Daemon() = default;
+
+ private:
+  // Internal instance helper called by Initialize().
+  virtual bool Init() = 0;
+
+  DISALLOW_COPY_AND_ASSIGN(Daemon);
+};
+
+}  // namespace bluetooth
diff --git a/rtkbt/code/bt/service/doc/IBluetooth.txt b/rtkbt/code/bt/service/doc/IBluetooth.txt
new file mode 100755
index 0000000..54695e6
--- /dev/null
+++ b/rtkbt/code/bt/service/doc/IBluetooth.txt
@@ -0,0 +1,119 @@
+/*
+ * Copyright (C) 2015, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * Binder IPC API for talking with the Bluetooth service and perform high-level
+ * operations on the adapter.
+ */
+interface IBluetooth {
+  /**
+   * Returns true if the Bluetooth adapter is powered and ready to use. This
+   * is equivalent to "getState() == ADAPTER_STATE_ON".
+   */
+  boolean isEnabled();
+
+  /**
+   * Returns the current Bluetooth adapter state. The return value can be one of
+   * the following:
+   *
+   *  - ADAPTER_STATE_OFF = 10
+   *  - ADAPTER_STATE_TURNING_ON = 11
+   *  - ADAPTER_STATE_ON = 12
+   *  - ADAPTER_STATE_TURNING_OFF = 13
+   */
+  int getState();
+
+  /**
+   * Turns on the Bluetooth radio. This function initiates the procedure to
+   * bring the adapter state from ADAPTER_STATE_OFF to ADAPTER_STATE_ON. Returns
+   * false, if the state is not ADAPTER_STATE_OFF or if there is an error while
+   * initiating the operation. On success, the adapter state will be
+   * asynchronously updated to ADAPTER_STATE_TURNING_ON and eventually to
+   * ADAPTER_STATE_ON. Callers can monitor the status of this call by observing
+   * the IBluetoothCallback.onBluetoothStateChange callback.
+   */
+  boolean enable();
+
+  /**
+   * Turns off the Bluetooth radio. This function initiates the procedure to
+   * bring the adapter state from ADAPTER_STATE_ON to ADAPTER_STATE_OFF. Returns
+   * false, if the state is not ADAPTER_STATE_ON or if there is an error while
+   * initiating the operation. On success, the adapter state will be
+   * asynchronously updated to ADAPTER_STATE_TURNING_OFF and eventually to
+   * ADAPTER_STATE_OFF. Callers can monitor the status of this call by observing
+   * the IBluetoothCallback.onBluetoothStateChange callback.
+   */
+  boolean disable();
+
+  /**
+   * Returns the identity Bluetooth Device Address (BD_ADDR) assigned to the
+   * underlying Bluetooth controller. Returns a string of the form
+   * "XX:XX:XX:XX:XX:XX", where each "X" is a hexadecimal digit. Returns
+   * "00:00:00:00:00:00" if the address is not known, which is usually the case
+   * before the adapter is enabled for the first time.
+   */
+  String getAddress();
+
+  /**
+   * Sets the name assigned to the Bluetooth adapter. This is the name that will
+   * be seen by remote devices during discovery. Returns false if the operation
+   * fails.
+   */
+  boolean setName(in String name);
+
+  /**
+   * Returns the current name assigned to the Bluetooth adapter. This is the
+   * name that is seen by remote devices during discovery. If the controller has
+   * not been initialized yet (before the first time it gets enabled), this will
+   * return "not-initialized".
+   */
+  String getName();
+
+  /**
+   * Registers a callback receiver which can be used to listen to state updates
+   * from the adapter. The Bluetooth daemon will automatically register this if
+   * the owning process dies.
+   */
+  void registerCallback(in IBluetoothCallback callback);
+
+  /**
+   * Unregisters a previously registered callback.
+   */
+  void unregisterCallback(in IBluetoothCallback callback);
+
+  /**
+   * Returns true, if the multi-advertisement feature is supported. Returns
+   * false, if this device can only advertise a single instance.
+   */
+  boolean isMultiAdvertisementSupported();
+
+  /**
+   * Returns a binder that can be used to interact with Low-Energy features.
+   */
+  IBluetoothLowEnergy getLowEnergyInterface();
+
+  /**
+   * Returns a binder that can be used to interact with GATT client-role
+   * features.
+   */
+  IBluetoothGattClient getGattClientInterface();
+
+  /**
+   * Returns a binder that can be used to interact with GATT server-role
+   * features.
+   */
+  IBluetoothGattServer getGattServerInterface();
+}
diff --git a/rtkbt/code/bt/service/doc/IBluetoothCallback.txt b/rtkbt/code/bt/service/doc/IBluetoothCallback.txt
new file mode 100755
index 0000000..612ecca
--- /dev/null
+++ b/rtkbt/code/bt/service/doc/IBluetoothCallback.txt
@@ -0,0 +1,26 @@
+/*
+ * Copyright (C) 2015, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * Binder IPC callback interface for receiving notifications about the
+ * high-level Bluetooth adapter state.
+ */
+interface IBluetoothCallback {
+  /**
+   * Called when the adapter state changes from |prev_state| to |new_state|.
+   */
+  void onBluetoothStateChange(in int prev_state, in int new_state);
+}
diff --git a/rtkbt/code/bt/service/doc/IBluetoothGattClient.txt b/rtkbt/code/bt/service/doc/IBluetoothGattClient.txt
new file mode 100755
index 0000000..8e55005
--- /dev/null
+++ b/rtkbt/code/bt/service/doc/IBluetoothGattClient.txt
@@ -0,0 +1,180 @@
+/*
+ * Copyright (C) 2015, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * Binder IPC interface for interacting with Bluetooth GATT client-role
+ * features.
+ * TODO(armansito): Not yet supported.
+ */
+interface IBluetoothGattClient {
+  /**
+   * Registers a client application with this interface. This creates a unique
+   * GATT client instance for the application. Returns true on success; false
+   * otherwise. If successful, the caller will be assigned a "client_id" which
+   * will be reported asynchronously via
+   * IBluetoothGattClientCallback.onRegistered. This ID is required to make
+   * calls to the functions defined below.
+   */
+  boolean registerClient(in IBluetoothGattClientCallback callback);
+
+  /**
+   * Unregisters a previously registered client with interface ID |client_id|.
+   */
+  void unregisterClient(in int client_id);
+
+  /**
+   * Unregisters all previously registered clients.
+   */
+  void unregisterAll();
+
+  /**
+   * Refreshes the local client-side attribute cache that mirrors the attribute
+   * database of remote device with address |device_address|. Returns false in
+   * case of an error. |client_id| is the identifier obtained via
+   * registerClient.
+   */
+  boolean refreshDevice(in int client_id, in String device_address);
+
+  /**
+   * Returns the GATT services, characteristics, and descriptors on the remote
+   * device with address |device_address| asynchronously via the corresponding
+   * IBluetoothGattClientCallback callbacks. Based on the current connection and
+   * bonding state, either GATT service discovery will be initiated or the
+   * results will be returned from the attribute cache. Returns false in case of
+   * an error. |client_id| is the identifier obtained via registerClient.
+   */
+  boolean discoverServices(in int client_id, in String device_address);
+
+  /**
+   * Initiate a read request for the remote characteristic with identifier
+   * |characteristic_id|. The result will be asynchronously reported in
+   * IBluetoothGattClientCallback.onCharacteristicRead. Returns false if the
+   * request cannot be started, e.g. if a read is already pending on this remote
+   * device. If the read request fails due to characteristic permissions,
+   * this function will try to raise the connection security level based on the
+   * characteristic's permission requirements. If that operation fails, then the
+   * |status| parameter of the onCharacteristicRead callback will contain the
+   * appropriate ATT protocol error code. |client_id| is obtained via
+   * registerClient.
+   */
+  boolean readCharacteristic(in int client_id,
+                             in GattIdentifier characteristic_id);
+
+  /**
+   * Initiate a write request for the remote characteristic with identifier
+   * |characteristic_id| with the value |value|. The |write_type| parameter
+   * indicates which of the following GATT write procedure should be used:
+   *
+   *   - WRITE_TYPE_DEFAULT (0x02): Regular Write Procedure
+   *   - WRITE_TYPE_NO_RESPONSE (0x01): Write Without Response procedure
+   *   - WRITE_TYPE_SIGNED (0x04): Signed Write Without Response procedure.
+   *
+   * The result will be asynchronously reported in
+   * IBluetoothGattClientCallback.onCharacteristicWrite. Returns false if the
+   * request cannot be started. If the write request fails due to attribute
+   * permissions, this function will try to raise the connection security level
+   * based on the characteristic's permission requirements. If that operation
+   * fails, then the |status| parameter of the onCharacteristicWrite callback
+   * will contain the appropriate ATT protocol error code. |client_id| is
+   * obtained via registerClient.
+   */
+  boolean writeCharacteristic(in int client_id,
+                              in GattIdentifier characteristic_id,
+                              in int write_type,
+                              in byte[] value);
+
+  /**
+   * Initiate a read request for the remote descriptor with identifier
+   * |descriptor_id|. The result will be asynchronously reported in
+   * IBluetoothGattClientCallback.onDescriptorRead. Returns false if the
+   * request cannot be started, e.g. if a read is already pending on this remote
+   * device. If the read request fails due to descriptor permissions,
+   * this function will try to raise the connection security level based on the
+   * descriptor's permission requirements. If that operation fails, then the
+   * |status| parameter of the onDescriptorRead callback will contain the
+   * appropriate ATT protocol error code. |client_id| is obtained via
+   * registerClient.
+   */
+  boolean readDescriptor(in int client_id,
+                         in GattIdentifier descriptor_id);
+
+  /**
+   * Initiate a write request for the remote descriptor with identifier
+   * |descriptor_id| with the value |value|. The |write_type| parameter
+   * indicates which of the following GATT write procedure should be used:
+   *
+   *   - WRITE_TYPE_DEFAULT (0x02): Regular write procedure
+   *   - WRITE_TYPE_NO_RESPONSE (0x01): Write without response procedure
+   *   - WRITE_TYPE_SIGNED (0x04): Authenticated-signed write procedure
+   *
+   * The result will be asynchronously reported in
+   * IBluetoothGattClientCallback.onDescriptorWrite. Returns false if the
+   * request cannot be started. If the write request fails due to attribute
+   * permissions, this function will try to raise the connection security level
+   * based on the descriptor's permission requirements. If that operation fails,
+   * then the |status| parameter of the onDescriptorWrite callback will contain
+   * the appropriate ATT protocol error code. |client_id| is obtained via
+   * registerClient.
+   */
+  boolean writeDescriptor(in int client_id,
+                          in GattIdentifier descriptor_id,
+                          in int write_type,
+                          in byte[] value);
+
+  /**
+   * Enables handle-value notifications from the remote characteristic with ID
+   * |characteristic_id|. If successful, notifications will be signaled via
+   * IBluetoothGattClientCallback.onNotify. Returns false if the request cannot
+   * be initiated. |client_id| is obtained via registerClient.
+   */
+  boolean registerForNotifications(in int client_id,
+                                   in GattIdentifier characteristic_id);
+
+  /**
+   * Disables handle-value notifications from the remote characteristic with ID
+   * |characteristic_id|. Returns false if the request cannot be initiated, e.g.
+   * if notifications from this characteristic have not been enabled.
+   * |client_id| is obtained via registerClient.
+   */
+  boolean unregisterForNotifications(in int client_id,
+                                     in GattIdentifier characteristic_id);
+
+  /**
+   * Initiates a reliable write procedure for the remote device with address
+   * |device_address|. Once a reliable write transaction has been initiated, all
+   * calls to writeCharacteristic are sent to the remote device for verification
+   * and queued up for atomic execution. The application can verify each write
+   * payload using the IBluetoothGattClientCallback.onCharacteristicWrite
+   * callback and abort reliable write in case of a mismatch. The queued writes
+   * will be processed atomically by the remote device after calling
+   * endReliableWrite. Returns false if the procedure cannot be started, e.g. if
+   * it has already been started earlier. |client_id| is obtained via
+   * registerClient.
+   */
+  boolean beginReliableWrite(in int client_id, in String device_address);
+
+  /**
+   * Ends a previously started reliable write procedure for the remote device
+   * with address |device_address|. If |execute| is true, then a request will be
+   * sent to execute the queued writes, else a request will be sent to abort the
+   * queued writes. Returns false in case of a failure, e.g. if a reliable write
+   * procedure was not started. IBluetoothGattClientCallback.onExecuteWrite will
+   * be used to asynchronously report the result of the execute write request.
+   * |client_id| is obtained via registerClient.
+   */
+  boolean endReliableWrite(in int client_id, in String device_address,
+                           in boolean execute);
+}
diff --git a/rtkbt/code/bt/service/doc/IBluetoothGattClientCallback.txt b/rtkbt/code/bt/service/doc/IBluetoothGattClientCallback.txt
new file mode 100755
index 0000000..d3ec6ed
--- /dev/null
+++ b/rtkbt/code/bt/service/doc/IBluetoothGattClientCallback.txt
@@ -0,0 +1,121 @@
+/*
+ * Copyright (C) 2015, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * Binder IPC interface for receiving callbacks related to Bluetooth GATT
+ * client-role operations.
+ * TODO(armansito): Not yet supported.
+ */
+oneway interface IBluetoothGattClientCallback {
+  /**
+   * Called as a result of IBluetoothGattClient.registerClient.
+   * |status| will contain BLE_STATUS_SUCCESS (0) if the client was successfully
+   * registered. |client_id| is the owning application's unique GATT client
+   * handle and can be used to perform further operations on the
+   * IBluetoothGattClient interface.
+   */
+  void onClientRegistered(in int status, in int client_id);
+
+  /**
+   * Called for each GATT service that was discovered on the remote device. The
+   * device that this service belongs to can be obtained from the |service_id|
+   * structure. |is_primary| is true if this refers to a primary service,
+   * otherwise this refers to a secondary service.
+   */
+  void onGetService(in boolean is_primary, in GattIdentifier service_id);
+
+  /**
+   * Called for each include definition that was discovered on the remote
+   * device.
+   */
+  void onGetIncludedService(in GattIdentifier included_service_id);
+
+  /**
+   * Called for each characteristic that was discovered on the remote device.
+   * The service that this characteristic belongs to can be obtained from the
+   * |characteristic_id| structure. |properties| contains the bitmask of GATT
+   * characteristic properties as defined in the Bluetooth Core Specification.
+   */
+  void onGetCharacteristic(in GattIdentifier characteristic_id,
+                           in int properties);
+
+  /**
+   * Called for each descriptor that was discovered on the remote device. The
+   * service and characteristic that this descriptor belongs to can be obtained
+   * from the |descriptor_id| structure.
+   */
+  void onGetDescriptor(in GattIdentifier descriptor_id);
+
+  /**
+   * Called to mark the end of GATT service discovery on the remote device with
+   * address |device_address|. |status| will contain BLE_STATUS_SUCCESS (0) if
+   * the operation was successful.
+   */
+  void onSearchComplete(in String device_address, in int status);
+
+  /**
+   * Called as a result of IBluetoothGattClient.readCharacteristic. |status|
+   * will contain BLE_STATUS_SUCCESS (0) on success and an ATT protocol error
+   * code in case of an error. |characteristic_id| refers to the characteristic
+   * this operation was performed on. On success, |value| will contain the
+   * characteristic value that was read from the remote device. This argument
+   * can be ignored in case of failure.
+   */
+  void onCharacteristicRead(in int status, in GattIdentifier characteristic_id,
+                            in byte[] value);
+
+  /**
+   * Called as a result of IBluetoothGattClient.writeCharacteristic. |status|
+   * will contain BLE_STATUS_SUCCESS (0) on success and an ATT protocol error
+   * code in case of an error. |characteristic_id| refers to the characteristic
+   * this operation was performed on.
+   */
+  void onCharacteristicWrite(in int status,
+                             in GattIdentifier characteristic_id);
+
+  /**
+   * Called as a result of IBluetoothGattClient.endReliableWrite.
+   * |device_address| refers to the remote device that the endReliableWrite
+   * method was called on. |status| will contain BLE_STATUS_SUCCESS (0) on
+   * success and an ATT error code in case of an error.
+   */
+  void onExecuteWrite(in String device_address, in int status);
+
+  /**
+   * Called as a result of IBluetoothGattClient.readDescriptor. |status|
+   * will contain BLE_STATUS_SUCCESS (0) on success and an ATT protocol error
+   * code in case of an error. |descriptor_id| refers to the descriptor this
+   * operation was performed on. On success, |value| will contain the
+   * descriptor value that was read from the remote device. This argument
+   * can be ignored in case of failure.
+   */
+  void onDescriptorRead(in int status, in GattIdentifier descriptor_id,
+                        in byte[] value);
+
+  /**
+   * Called as a result of IBluetoothGattClient.writeDescriptor. |status|
+   * will contain BLE_STATUS_SUCCESS (0) on success and an ATT protocol error
+   * code in case of an error. |descriptor_id| refers to the descriptor this
+   * operation was performed on.
+   */
+  void onDescriptorWrite(in int status, in GattIdentifier descriptor_id);
+
+  /**
+   * Called when there is an incoming ATT Handle-Value notification or
+   * indication for the characteristic with identifier |characteristic_id|.
+   */
+  void onNotify(in GattIdentifier characteristic_id, in byte[] value);
+}
diff --git a/rtkbt/code/bt/service/doc/IBluetoothGattServer.txt b/rtkbt/code/bt/service/doc/IBluetoothGattServer.txt
new file mode 100755
index 0000000..8ead69b
--- /dev/null
+++ b/rtkbt/code/bt/service/doc/IBluetoothGattServer.txt
@@ -0,0 +1,114 @@
+/*
+ * Copyright (C) 2015, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * Binder IPC interface for interacting with Bluetooth GATT server-role
+ * features.
+ */
+interface IBluetoothGattServer {
+  /**
+   * Registers a client application with this interface. This creates a unique
+   * GATT server instance for the application that will contain the GATT
+   * services belonging to the calling application. A special interface ID will
+   * be returned in a callback to the application that can be used to perform
+   * GATT server operations. Returns false in case of an error.
+   */
+  boolean registerServer(in IBluetoothGattServerCallback callback);
+
+  /**
+   * Unregisters a previously registered server with interface ID |server_if|.
+   */
+  void unregisterServer(in int server_if);
+
+  /**
+   * Unregisters all previously registered servers.
+   */
+  void unregisterAll();
+
+  /**
+   * Begins a new GATT service declaration. This will execute synchronously and
+   * create a new service range. This can be followed by calls to populate the
+   * service range with attributes. The started service won't be published and
+   * made discoverable to remote devices until a successful call to
+   * endServiceDeclaration.
+   *
+   * The created service will be assigned a unique identifier that can be used
+   * by the caller to distinguish between different services. This will be
+   * returned in |out_id| in case of success. Returns false in case of failure,
+   * e.g. a service declaration is already in progress.
+   */
+  boolean beginServiceDeclaration(in int server_if, in boolean is_primary,
+                                  in ParcelUuid uuid,
+                                  out GattIdentifier out_id);
+
+  /**
+   * Adds a characteristic entry to a previously started service declaration.
+   * Returns false in case of failure, e.g. if no service declaration was
+   * started. Returns the uniquely assigned characteristic identifier in
+   * |out_id| in the case of success.
+   */
+  boolean addCharacteristic(in int server_if, in ParcelUuid uuid,
+                            in int properties, in int permissions,
+                            out GattIdentifier out_id);
+
+  /**
+   * Adds a characteristic descriptor entry to a previously started service
+   * declaration. Returns false in case of failure, e.g. if no service
+   * declaration was started or if the declaration does not contain a
+   * characteristic that can own this descriptor. Returns the uniquely assigned
+   * descriptor identifier in |out_id| in the case of success.
+   */
+  boolean addDescriptor(in int server_if, in ParcelUuid uuid,
+                        in int permissions,
+                        out GattIdentifier out_id);
+
+  /**
+   * Ends a previously started service declaration and asynchronously publishes
+   * the service in the underlying attribute database. Returns false in case of
+   * an asynchronous failure, e.g. if no service declaration was started or
+   * there is a pending call to endServiceDeclaration. Otherwise returns true
+   * and reports the result of the operation asynchronously in
+   * IBluetoothGattServerCallback.onServiceAdded.
+   */
+  boolean endServiceDeclaration(in int server_if);
+
+  /**
+   * Sends a response to a currently pending read or write request. The request
+   * will be propagated to the application via IBluetoothGattServerCallback with
+   * a unique |request_id| which must be passed to this method along with the
+   * |device_address| of the device that the request originated from.
+   *
+   * The |status| field should contain the result of the operation. In the case
+   * of success, the application should pass in "0". Otherwise this should
+   * contain an ATT protocol error code.
+   */
+  boolean sendResponse(in int server_if, in String device_address,
+                       in int request_id, in int status,
+                       in int offset, in byte[] value);
+
+  /**
+   * Sends a handle-value notification or indication to the device with the
+   * given address for the characteristic with the given identifier. |confirm|
+   * should be set to true, if a handle-value indication should be sent, which
+   * will remain pending until the remote device sends a handle-value
+   * confirmation. Returns false if a call to this method is pending. Otherwise
+   * reports the result asynchronously in
+   * IBluetoothGattServerCallback.onNotificationSent.
+   */
+  boolean sendNotification(in int server_if, in String device_address,
+                           in GattIdentifier characteristic_id,
+                           in boolean confirm, in byte[] value);
+}
diff --git a/rtkbt/code/bt/service/doc/IBluetoothGattServerCallback.txt b/rtkbt/code/bt/service/doc/IBluetoothGattServerCallback.txt
new file mode 100755
index 0000000..fd4b86a
--- /dev/null
+++ b/rtkbt/code/bt/service/doc/IBluetoothGattServerCallback.txt
@@ -0,0 +1,134 @@
+/*
+ * Copyright (C) 2015, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * Binder IPC interface for receiving callbacks related to Bluetooth GATT
+ * server-role operations.
+ */
+oneway interface IBluetoothGattServerCallback {
+  /**
+   * Called to report the result of a call to
+   * IBluetoothGattServer.registerServer. |status| will be 0 (or
+   * BLE_STATUS_SUCCESS) if the server was successfully registered. |server_if|
+   * is the owning application's unique GATT server handle and can be used to
+   * perform further operations on the IBluetoothGattServer interface.
+   */
+  void onServerRegistered(in int status, in int server_if);
+
+  /**
+   * Called to report the result of a call to
+   * IBluetoothGattServer.endServiceDeclaration. A |status| of 0 denotes
+   * success, which means that the GATT service has been published and is
+   * discoverable. |service_id| belongs to the service that was registered.
+   */
+  void onServiceAdded(in int status, in GattIdentifier service_id);
+
+  /**
+   * Called when there is an incoming read request from the remote device with
+   * address |device_address| for the characteristic with identifier
+   * |characteristic_id|. |offset| is the index of the characteristic value that
+   * the remote device wants to read from. If |is_long| is true, then this
+   * request is part of a Long Read procedure. An implementation should handle
+   * this request by calling IBluetoothGattServer.sendResponse with the given
+   * |request_id| and the appropriate characteristic value.
+   *
+   * If |offset| is invalid then sendResponse should be called with
+   * GATT_ERROR_INVALID_OFFSET. If |is_long| is true but this characteristic is
+   * not a long attribute (i.e. its value would fit within the current ATT MTU),
+   * then GATT_ERROR_ATTRIBUTE_NOT_LONG should be returned.
+   */
+  void onCharacteristicReadRequest(in String device_address, in int request_id,
+                                   in int offset, in boolean is_long,
+                                   in GattIdentifier characteristic_id);
+
+  /**
+   * Called when there is an incoming read request from the remote device with
+   * address |device_address| for the descriptor with identifier
+   * |descriptor_id|. |offset| is the index of the descriptor value that
+   * the remote device wants to read from. If |is_long| is true, then this
+   * request is part of a Long Read procedure. An implementation should handle
+   * this request by calling IBluetoothGattServer.sendResponse with the given
+   * |request_id| and the appropriate descriptor value.
+   *
+   * If |offset| is invalid then sendResponse should be called with
+   * GATT_ERROR_INVALID_OFFSET. If |is_long| is true but this descriptor is
+   * not a long attribute (i.e. its value would fit within the current ATT MTU),
+   * then GATT_ERROR_ATTRIBUTE_NOT_LONG should be returned.
+   */
+  void onDescriptorReadRequest(in String device_address, in int request_id,
+                               in int offset, in boolean is_long,
+                               in GattIdentifier descriptor_id);
+
+  /**
+   * Called when there is an incoming write request from the remote device with
+   * address |device_address| for the characteristic with identifier
+   * |characteristic_id| with the value |value|. An implementation should handle
+   * this request by calling IBluetoothGattServer.sendResponse with the given
+   * |request_id|. |offset| is the index of the characteristic value that the
+   * remote device wants to write to, so the value should be written starting at
+   * |offset|. If |need_response| is false, then this is a "Write Without
+   * Response" procedure and sendResponse should not be called. If
+   * |is_prepare_write| is true, then the implementation should not commit this
+   * write until a call to onExecuteWriteRequest is received.
+   *
+   * If |offset| is invalid, then sendResponse should be called with
+   * GATT_ERROR_INVALID_OFFSET.
+   */
+  void onCharacteristicWriteRequest(in String device_address, in int request_id,
+                                    in int offset, in boolean is_prepare_write,
+                                    in boolean need_response, in byte[] value,
+                                    in GattIdentifier characteristic_id);
+
+  /**
+   * Called when there is an incoming write request from the remote device with
+   * address |device_address| for the descriptor with identifier
+   * |descriptor_id| with the value |value|. An implementation should handle
+   * this request by calling IBluetoothGattServer.sendResponse with the given
+   * |request_id|. |offset| is the index of the descriptor value that the
+   * remote device wants to write to, so the value should be written starting at
+   * |offset|. If |need_response| is false, then this is a "Write Without
+   * Response" procedure and sendResponse should not be called. If
+   * |is_prepare_write| is true, then the implementation should not commit this
+   * write until a call to onExecuteWriteRequest is received.
+   *
+   * If |offset| is invalid, then sendResponse should be called with
+   * GATT_ERROR_INVALID_OFFSET.
+   */
+  void onDescriptorWriteRequest(in String device_address, in int request_id,
+                                in int offset, in boolean is_prepare_write,
+                                in boolean need_response, in byte[] value,
+                                in GattIdentifier descriptor_id);
+
+  /**
+   * Called when there is an incoming execute-write request to commit or abort
+   * previously prepared writes. If |is_execute| is true, then the
+   * implementation should commit all previously prepared writes. Otherwise all
+   * prepared writes should dropped (aborted). The application should report the
+   * result of the execute write by calling IBluetoothGattServer.sendResponse
+   * with the given |request_id|.
+   */
+  void onExecuteWriteRequest(in String device_address, in int request_id,
+                             in boolean is_execute);
+
+  /**
+   * Reports the result of a previous call to
+   * IBluetoothGattServer.sendNotification. If an indication was sent, this will
+   * be called when the remote device sends a confirmation packet. Otherwise
+   * this will be called as soon as the notification packet is successfully sent
+   * out over the radio.
+   */
+  void onNotificationSent(in String device_address, in int status);
+}
diff --git a/rtkbt/code/bt/service/doc/IBluetoothLowEnergy.txt b/rtkbt/code/bt/service/doc/IBluetoothLowEnergy.txt
new file mode 100755
index 0000000..b7218cb
--- /dev/null
+++ b/rtkbt/code/bt/service/doc/IBluetoothLowEnergy.txt
@@ -0,0 +1,97 @@
+/*
+ * Copyright (C) 2015, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * Binder IPC API for interacting with Bluetooth Low-Energy features.
+ */
+interface IBluetoothLowEnergy {
+  /**
+   * Registers a client application that can manage its own Low Energy
+   * instance. A special client interface ID will be returned in a callback to
+   * the application that can be used to perform Low Energy operations. Returns
+   * false in case of an error.
+   */
+  boolean registerClient(in IBluetoothLowEnergyCallback callback);
+
+  /**
+   * Unregisters a previously registered client with "client interface ID"
+   * |client_if|.
+   */
+  void unregisterClient(in int client_if);
+
+  /**
+   * Unregisters all previously registered clients.
+   */
+  void unregisterAll();
+
+  /* Initiates a BLE connection do device with address |address|. If
+   * |is_direct| is set, use direct connect procedure. Return true on success,
+   * false otherwise.
+   */
+  boolean Connect(in int client_id, in const char* address,
+                  in boolean is_direct);
+
+  /* Disconnect from previously connected BLE device with address |address|.
+   * Returns true on success, false otherwise.
+   */
+  boolean Disconnect(in int client_id, in const char* address);
+
+  /**
+   * Sends request to set MTU to |mtu| for the device with address |address|.
+   * OnMtuChanged callback will be triggered as a result of this call. Returns
+   * true when the command was sent, false otherwise.
+   */
+   boolean setMtu(in int client_id, in char* address, int mtu);
+
+  /**
+   * Initiates a BLE device scan for the scan client with ID |client_id|, using
+   * the parameters defined in |settings|. Scan results that are reported to the
+   * application with the associated IBluetoothLowEnergyCallback event will be
+   * filtered using a combination of hardware and software filtering based on
+   * |filters|. Return true on success, false otherwise.
+   */
+  boolean startScan(in int client_id, in ScanSettings settings,
+                    in ScanFilter[] filters);
+
+  /**
+   * Stops a previously initiated scan session for the client with ID
+   * |client_id|. Return true on success, false otherwise.
+   */
+  boolean stopScan(in int client_id);
+
+  /**
+   * Starts a multi-advertising instance using |advertising_data| and
+   * |scan_response_data|, both of which can be empty. Each of these parameters
+   * must contain the raw advertising packet. Returns false if there were any
+   * synchronous failures, e.g. if the advertising or scan response data are
+   * incorrectly formatted. Otherwise, the result of the operation will be
+   * asynchronously reported in
+   * IBluetoothLowEnergyCallback.onMultiAdvertiseCallback. See the headers in
+   * common/bluetooth/binder for documentation on the AdvertiseData and
+   * AdvertiseSettings data types.
+   */
+  boolean startMultiAdvertising(in int client_if,
+                                in AdvertiseData advertise_data,
+                                in AdvertiseData scan_response_data,
+                                in AdvertiseSettings settings);
+
+  /**
+   * Stops the previously started multi-advertising instance for the given
+   * client. Returns false in case of an error, e.g. this client has not started
+   * an instance.
+   */
+  boolean stopMultiAdvertising(in int client_if);
+}
diff --git a/rtkbt/code/bt/service/doc/IBluetoothLowEnergyCallback.txt b/rtkbt/code/bt/service/doc/IBluetoothLowEnergyCallback.txt
new file mode 100755
index 0000000..1ced0aa
--- /dev/null
+++ b/rtkbt/code/bt/service/doc/IBluetoothLowEnergyCallback.txt
@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2015, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * Binder IPC interface for receiving callbacks related to Bluetooth Low Energy
+ * operations.
+ */
+oneway interface IBluetoothLowEnergyCallback {
+  /**
+   * Called to report the result of a call to
+   * IBluetoothLowEnergy.registerClient. |status| will be BLE_STATUS_SUCCESS (0)
+   * if the client was successfully registered. |client_if| is the owning
+   * application's unique Low Energy client handle and can be used
+   * to perform further operations on the IBluetoothLowEnergy interface.
+   */
+  void onClientRegistered(in int status, in int client_if);
+
+  /* Called asynchronously to notify the delegate of connection state change.
+   */
+  void OnConnectionState(in int status, in int client_id, in const char* address,
+                         in bool connected);
+
+  /* Called to report current MTU value. Can be a result of calling
+   * IBluetoothLowEnergy.setMtu or remote device trying to change MTU.
+   */
+  void OnMtuChanged(in int status, in const char* address, in int mtu);
+
+  /**
+   * Called to report BLE device scan results once a scan session is started for
+   * this client using IBluetoothLowEnergy.startScan. |scan_result| contains all
+   * the data related to the discovered BLE device.
+   */
+  void onScanResult(in ScanResult scan_result);
+
+  /**
+   * Called to report the result of a call to
+   * IBluetoothLowEnergy.startMultiAdvertising or stopMultiAdvertising.
+   */
+  void onMultiAdvertiseCallback(in int status, in boolean is_start,
+                                in AdvertiseSettings settings);
+}
diff --git a/rtkbt/code/bt/service/example/heart_rate/constants.h b/rtkbt/code/bt/service/example/heart_rate/constants.h
new file mode 100755
index 0000000..6159997
--- /dev/null
+++ b/rtkbt/code/bt/service/example/heart_rate/constants.h
@@ -0,0 +1,45 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#pragma once
+
+#include <bluetooth/uuid.h>
+
+// This header defines constants specific to the GATT Heart Rate Service.
+
+namespace heart_rate {
+
+// HR Measurement characteristic value flags
+const uint8_t kHRValueFormat8Bit = (0 << 0);
+const uint8_t kHRValueFormat16Bit = (1 << 0);
+const uint16_t kHRSensorContactDetected = (3 << 1);
+const uint8_t kHREnergyExpendedPresent = (1 << 3);
+
+const bluetooth::UUID kCCCDescriptorUUID("2902");
+const bluetooth::UUID kHRServiceUUID("180D");
+const bluetooth::UUID kHRMeasurementUUID("2A37");
+const bluetooth::UUID kBodySensorLocationUUID("2A38");
+const bluetooth::UUID kHRControlPointUUID("2A39");
+
+const uint8_t kHRBodyLocationOther = 0;
+const uint8_t kHRBodyLocationChest = 1;
+const uint8_t kHRBodyLocationWrist = 2;
+const uint8_t kHRBodyLocationFinger = 3;
+const uint8_t kHRBodyLocationHand = 4;
+const uint8_t kHRBodyLocationEarLobe = 5;
+const uint8_t kHRBodyLocationFoot = 6;
+
+}  // namespace heart_rate
diff --git a/rtkbt/code/bt/service/example/heart_rate/heart_rate_server.cpp b/rtkbt/code/bt/service/example/heart_rate/heart_rate_server.cpp
new file mode 100755
index 0000000..724ef29
--- /dev/null
+++ b/rtkbt/code/bt/service/example/heart_rate/heart_rate_server.cpp
@@ -0,0 +1,498 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#include "service/example/heart_rate/heart_rate_server.h"
+
+#include <base/bind.h>
+#include <base/location.h>
+#include <base/logging.h>
+#include <base/rand_util.h>
+
+#include <bluetooth/low_energy_constants.h>
+
+#include "service/example/heart_rate/constants.h"
+
+namespace heart_rate {
+
+class CLIBluetoothLowEnergyCallback
+    : public ipc::binder::BnBluetoothLowEnergyCallback {
+ public:
+  CLIBluetoothLowEnergyCallback(android::sp<ipc::binder::IBluetooth> bt)
+      : bt_(bt) {}
+
+  // IBluetoothLowEnergyCallback overrides:
+  void OnConnectionState(int status, int client_id, const char* address,
+                         bool connected) override {}
+  void OnMtuChanged(int status, const char *address, int mtu) override {}
+
+  void OnScanResult(const bluetooth::ScanResult& scan_result) override {}
+
+  void OnClientRegistered(int status, int client_id){
+    if (status != bluetooth::BLE_STATUS_SUCCESS) {
+      LOG(ERROR) << "Failed to register BLE client, will not start advertising";
+      return;
+    }
+
+    LOG(INFO) << "Registered BLE client with ID: " << client_id;
+
+    /* Advertising data: 16-bit Service UUID: Heart Rate Service */
+    std::vector<uint8_t> data{0x03, 0x03, 0x0D, 0x18};
+    base::TimeDelta timeout;
+
+    bluetooth::AdvertiseSettings settings(
+        bluetooth::AdvertiseSettings::MODE_LOW_POWER,
+        timeout,
+        bluetooth::AdvertiseSettings::TX_POWER_LEVEL_MEDIUM,
+        true);
+
+    bluetooth::AdvertiseData adv_data(data);
+    adv_data.set_include_device_name(true);
+    adv_data.set_include_tx_power_level(true);
+
+    bluetooth::AdvertiseData scan_rsp;
+
+    bt_->GetLowEnergyInterface()->
+        StartMultiAdvertising(client_id, adv_data, scan_rsp, settings);
+  }
+
+  void OnMultiAdvertiseCallback(int status, bool is_start,
+      const bluetooth::AdvertiseSettings& /* settings */) {
+    LOG(INFO) << "Advertising" << (is_start?" started":" stopped");
+  };
+
+ private:
+  android::sp<ipc::binder::IBluetooth> bt_;
+  DISALLOW_COPY_AND_ASSIGN(CLIBluetoothLowEnergyCallback);
+};
+
+
+HeartRateServer::HeartRateServer(
+    android::sp<ipc::binder::IBluetooth> bluetooth,
+    scoped_refptr<base::SingleThreadTaskRunner> main_task_runner,
+    bool advertise)
+    : simulation_started_(false),
+      bluetooth_(bluetooth),
+      server_if_(-1),
+      hr_notification_count_(0),
+      energy_expended_(0),
+      advertise_(advertise),
+      main_task_runner_(main_task_runner),
+      weak_ptr_factory_(this) {
+  CHECK(bluetooth_.get());
+}
+
+HeartRateServer::~HeartRateServer() {
+  std::lock_guard<std::mutex> lock(mutex_);
+  if (!gatt_.get() || server_if_ == -1)
+    return;
+
+  if (!android::IInterface::asBinder(gatt_.get())->isBinderAlive())
+    return;
+
+  // Manually unregister ourselves from the daemon. It's good practice to do
+  // this, even though the daemon will automatically unregister us if this
+  // process exits.
+  gatt_->UnregisterServer(server_if_);
+}
+
+bool HeartRateServer::Run(const RunCallback& callback) {
+  std::lock_guard<std::mutex> lock(mutex_);
+
+  if (pending_run_cb_) {
+    LOG(ERROR) << "Already started";
+    return false;
+  }
+
+  // Grab the IBluetoothGattServer binder from the Bluetooth daemon.
+  gatt_ = bluetooth_->GetGattServerInterface();
+  if (!gatt_.get()) {
+    LOG(ERROR) << "Failed to obtain handle to IBluetoothGattServer interface";
+    return false;
+  }
+
+  // Register this instance as a GATT server. If this call succeeds, we will
+  // asynchronously receive a server ID via the OnServerRegistered callback.
+  if (!gatt_->RegisterServer(this)) {
+    LOG(ERROR) << "Failed to register with the server interface";
+    return false;
+  }
+
+  pending_run_cb_ = callback;
+
+  return true;
+}
+
+void HeartRateServer::ScheduleNextMeasurement() {
+  main_task_runner_->PostDelayedTask(
+      FROM_HERE,
+      base::Bind(&HeartRateServer::SendHeartRateMeasurement,
+                 weak_ptr_factory_.GetWeakPtr()),
+      base::TimeDelta::FromSeconds(1));
+}
+
+void HeartRateServer::SendHeartRateMeasurement() {
+  std::lock_guard<std::mutex> lock(mutex_);
+
+  // Send a notification or indication to all enabled devices.
+  bool found = false;
+  for (const auto& iter : device_ccc_map_) {
+    uint8_t ccc_val = iter.second;
+
+    if (!ccc_val)
+      continue;
+
+    found = true;
+
+    // Don't send a notification if one is already pending for this device.
+    if (pending_notification_map_[iter.first])
+      continue;
+
+    std::vector<uint8_t> value;
+    BuildHeartRateMeasurementValue(&value);
+
+    if (gatt_->SendNotification(server_if_, iter.first, hr_measurement_id_,
+                                false, value))
+      pending_notification_map_[iter.first] = true;
+  }
+
+  // Still enabled!
+  if (found) {
+    ScheduleNextMeasurement();
+    return;
+  }
+
+  // All clients disabled notifications.
+  simulation_started_ = false;
+
+  // TODO(armansito): We should keep track of closed connections here so that we
+  // don't send notifications to uninterested clients.
+}
+
+void HeartRateServer::BuildHeartRateMeasurementValue(
+    std::vector<uint8_t>* out_value) {
+  CHECK(out_value);  // Assert that |out_value| is not nullptr.
+
+  // Default flags field. Here is what we put in there:
+  //   Bit 0: 0 - 8-bit Heart Rate value
+  //   Bits 1 & 2: 11 - Sensor contact feature supported and contact detected.
+  uint8_t flags = kHRValueFormat8Bit | kHRSensorContactDetected;
+
+  // Our demo's heart rate. Pick a value between 90 and 130.
+  uint8_t heart_rate = base::RandInt(90, 130);
+
+  // On every tenth beat we include the Energy Expended value.
+  bool include_ee = false;
+  if (!(hr_notification_count_ % 10)) {
+    include_ee = true;
+    flags |= kHREnergyExpendedPresent;
+  }
+
+  hr_notification_count_++;
+  energy_expended_ = std::min(UINT16_MAX, (int)energy_expended_ + 1);
+
+  // Add all the value bytes.
+  out_value->push_back(flags);
+  out_value->push_back(heart_rate);
+  if (include_ee) {
+    out_value->push_back(energy_expended_);
+    out_value->push_back(energy_expended_ >> 8);
+  }
+}
+
+void HeartRateServer::OnServerRegistered(int status, int server_if) {
+  std::lock_guard<std::mutex> lock(mutex_);
+
+  if (status != bluetooth::BLE_STATUS_SUCCESS) {
+    LOG(ERROR) << "Failed to register GATT server";
+    pending_run_cb_(false);
+    return;
+  }
+
+  // Registration succeeded. Store our ID, as we need it for GATT server
+  // operations.
+  server_if_ = server_if;
+
+  LOG(INFO) << "Heart Rate server registered - server_if: " << server_if_;
+  LOG(INFO) << "Populating attributes";
+
+  // Start service declaration.
+  std::unique_ptr<bluetooth::GattIdentifier> gatt_id;
+  if (!gatt_->BeginServiceDeclaration(server_if_, true,
+                                      kHRServiceUUID,
+                                      &gatt_id)) {
+    LOG(ERROR) << "Failed to begin service declaration";
+    pending_run_cb_(false);
+    return;
+  }
+
+  hr_service_id_ = *gatt_id;
+
+  // Add Heart Rate Measurement characteristic.
+  if (!gatt_->AddCharacteristic(
+      server_if_, kHRMeasurementUUID,
+      bluetooth::kCharacteristicPropertyNotify,
+      0, &gatt_id)) {
+    LOG(ERROR) << "Failed to add heart rate measurement characteristic";
+    pending_run_cb_(false);
+    return;
+  }
+
+  hr_measurement_id_ = *gatt_id;
+
+  // Add Client Characteristic Configuration descriptor for the Heart Rate
+  // Measurement characteristic.
+  if (!gatt_->AddDescriptor(
+      server_if_, kCCCDescriptorUUID,
+      bluetooth::kAttributePermissionRead|bluetooth::kAttributePermissionWrite,
+      &gatt_id)) {
+    LOG(ERROR) << "Failed to add CCC descriptor";
+    pending_run_cb_(false);
+    return;
+  }
+
+  hr_measurement_cccd_id_ = *gatt_id;
+
+  // Add Body Sensor Location characteristic.
+  if (!gatt_->AddCharacteristic(
+      server_if_, kBodySensorLocationUUID,
+      bluetooth::kCharacteristicPropertyRead,
+      bluetooth::kAttributePermissionRead,
+      &gatt_id)) {
+    LOG(ERROR) << "Failed to add body sensor location characteristic";
+    pending_run_cb_(false);
+    return;
+  }
+
+  body_sensor_loc_id_ = *gatt_id;
+
+  // Add Heart Rate Control Point characteristic.
+  if (!gatt_->AddCharacteristic(
+      server_if_, kHRControlPointUUID,
+      bluetooth::kCharacteristicPropertyWrite,
+      bluetooth::kAttributePermissionWrite,
+      &gatt_id)) {
+    LOG(ERROR) << "Failed to add heart rate control point characteristic";
+    pending_run_cb_(false);
+    return;
+  }
+
+  hr_control_point_id_ = *gatt_id;
+
+  // End service declaration. We will be notified whether or not this succeeded
+  // via the OnServiceAdded callback.
+  if (!gatt_->EndServiceDeclaration(server_if_)) {
+    LOG(ERROR) << "Failed to end service declaration";
+    pending_run_cb_(false);
+    return;
+  }
+
+  LOG(INFO) << "Initiated EndServiceDeclaration request";
+}
+
+void HeartRateServer::OnServiceAdded(
+    int status,
+    const bluetooth::GattIdentifier& service_id) {
+  std::lock_guard<std::mutex> lock(mutex_);
+
+  if (status != bluetooth::BLE_STATUS_SUCCESS) {
+    LOG(ERROR) << "Failed to add Heart Rate service";
+    pending_run_cb_(false);
+    return;
+  }
+
+  if (service_id != hr_service_id_) {
+    LOG(ERROR) << "Received callback for the wrong service ID";
+    pending_run_cb_(false);
+    return;
+  }
+
+  // EndServiceDeclaration succeeded! Our Heart Rate service is now discoverable
+  // over GATT connections.
+
+  LOG(INFO) << "Heart Rate service added";
+  pending_run_cb_(true);
+
+  if (advertise_) {
+    auto ble = bluetooth_->GetLowEnergyInterface();
+    if (!ble.get()) {
+      LOG(ERROR) << "Failed to obtain handle to IBluetoothLowEnergy interface";
+      return;
+    }
+    ble->RegisterClient(new CLIBluetoothLowEnergyCallback(bluetooth_));
+  }
+
+}
+
+void HeartRateServer::OnCharacteristicReadRequest(
+    const std::string& device_address,
+    int request_id, int offset, bool /* is_long */,
+    const bluetooth::GattIdentifier& characteristic_id) {
+  std::lock_guard<std::mutex> lock(mutex_);
+
+  // This is where we handle an incoming characteristic read. Only the body
+  // sensor location characteristic is readable.
+  CHECK(characteristic_id == body_sensor_loc_id_);
+
+  std::vector<uint8_t> value;
+  bluetooth::GATTError error = bluetooth::GATT_ERROR_NONE;
+  if (offset > 1)
+    error = bluetooth::GATT_ERROR_INVALID_OFFSET;
+  else if (offset == 0)
+    value.push_back(kHRBodyLocationFoot);
+
+  gatt_->SendResponse(server_if_, device_address, request_id, error,
+                      offset, value);
+}
+
+void HeartRateServer::OnDescriptorReadRequest(
+    const std::string& device_address,
+    int request_id, int offset, bool /* is_long */,
+    const bluetooth::GattIdentifier& descriptor_id) {
+  std::lock_guard<std::mutex> lock(mutex_);
+
+  // This is where we handle an incoming characteristic descriptor read. There
+  // is only one descriptor.
+  if (descriptor_id != hr_measurement_cccd_id_) {
+    std::vector<uint8_t> value;
+    gatt_->SendResponse(server_if_, device_address, request_id,
+                        bluetooth::GATT_ERROR_ATTRIBUTE_NOT_FOUND,
+                        offset, value);
+    return;
+  }
+
+  // 16-bit value encoded as little-endian.
+  const uint8_t value_bytes[] = { device_ccc_map_[device_address], 0x00 };
+
+  std::vector<uint8_t> value;
+  bluetooth::GATTError error = bluetooth::GATT_ERROR_NONE;
+  if (offset > 2)
+    error = bluetooth::GATT_ERROR_INVALID_OFFSET;
+  else
+    value.insert(value.begin(), value_bytes + offset, value_bytes + 2 - offset);
+
+  gatt_->SendResponse(server_if_, device_address, request_id, error,
+                      offset, value);
+}
+
+void HeartRateServer::OnCharacteristicWriteRequest(
+    const std::string& device_address,
+    int request_id, int offset, bool is_prepare_write, bool need_response,
+    const std::vector<uint8_t>& value,
+    const bluetooth::GattIdentifier& characteristic_id) {
+  std::lock_guard<std::mutex> lock(mutex_);
+
+  std::vector<uint8_t> dummy;
+
+  // This is where we handle an incoming characteristic write. The Heart Rate
+  // service doesn't really support prepared writes, so we just reject them to
+  // keep things simple.
+  if (is_prepare_write) {
+    gatt_->SendResponse(server_if_, device_address, request_id,
+                        bluetooth::GATT_ERROR_REQUEST_NOT_SUPPORTED,
+                        offset, dummy);
+    return;
+  }
+
+  // Heart Rate Control point is the only writable characteristic.
+  CHECK(characteristic_id == hr_control_point_id_);
+
+  // Writes to the Heart Rate Control Point characteristic must contain a single
+  // byte with the value 0x01.
+  if (value.size() != 1 || value[0] != 0x01) {
+    gatt_->SendResponse(server_if_, device_address, request_id,
+                        bluetooth::GATT_ERROR_OUT_OF_RANGE,
+                        offset, dummy);
+    return;
+  }
+
+  LOG(INFO) << "Heart Rate Control Point written; Enery Expended reset!";
+  energy_expended_ = 0;
+
+  if (!need_response)
+    return;
+
+  gatt_->SendResponse(server_if_, device_address, request_id,
+                      bluetooth::GATT_ERROR_NONE, offset, dummy);
+}
+
+void HeartRateServer::OnDescriptorWriteRequest(
+    const std::string& device_address,
+    int request_id, int offset, bool is_prepare_write, bool need_response,
+    const std::vector<uint8_t>& value,
+    const bluetooth::GattIdentifier& descriptor_id) {
+  std::lock_guard<std::mutex> lock(mutex_);
+
+  std::vector<uint8_t> dummy;
+
+  // This is where we handle an incoming characteristic write. The Heart Rate
+  // service doesn't really support prepared writes, so we just reject them to
+  // keep things simple.
+  if (is_prepare_write) {
+    gatt_->SendResponse(server_if_, device_address, request_id,
+                        bluetooth::GATT_ERROR_REQUEST_NOT_SUPPORTED,
+                        offset, dummy);
+    return;
+  }
+
+  // CCC is the only descriptor we have.
+  CHECK(descriptor_id == hr_measurement_cccd_id_);
+
+  // CCC must contain 2 bytes for a 16-bit value in little-endian. The only
+  // allowed values here are 0x0000 and 0x0001.
+  if (value.size() != 2 || value[1] != 0x00 || value[0] > 0x01) {
+    gatt_->SendResponse(server_if_, device_address, request_id,
+                        bluetooth::GATT_ERROR_CCCD_IMPROPERLY_CONFIGURED,
+                        offset, dummy);
+    return;
+  }
+
+  device_ccc_map_[device_address] = value[0];
+
+  LOG(INFO) << "Heart Rate Measurement CCC written - device: "
+            << device_address << " value: " << (int)value[0];
+
+  // Start the simulation.
+  if (!simulation_started_ && value[0]) {
+    simulation_started_ = true;
+    ScheduleNextMeasurement();
+  }
+
+  if (!need_response)
+    return;
+
+  gatt_->SendResponse(server_if_, device_address, request_id,
+                      bluetooth::GATT_ERROR_NONE, offset, dummy);
+}
+
+void HeartRateServer::OnExecuteWriteRequest(
+    const std::string& device_address,
+    int request_id,
+    bool /* is_execute */) {
+  // We don't support Prepared Writes so, simply return Not Supported error.
+  std::vector<uint8_t> dummy;
+  gatt_->SendResponse(server_if_, device_address, request_id,
+                      bluetooth::GATT_ERROR_REQUEST_NOT_SUPPORTED, 0, dummy);
+}
+
+void HeartRateServer::OnNotificationSent(
+    const std::string& device_address, int status) {
+  LOG(INFO) << "Notification was sent - device: " << device_address
+            << " status: " << status;
+  std::lock_guard<std::mutex> lock(mutex_);
+  pending_notification_map_[device_address] = false;
+}
+
+}  // namespace heart_rate
diff --git a/rtkbt/code/bt/service/example/heart_rate/heart_rate_server.h b/rtkbt/code/bt/service/example/heart_rate/heart_rate_server.h
new file mode 100755
index 0000000..4c87484
--- /dev/null
+++ b/rtkbt/code/bt/service/example/heart_rate/heart_rate_server.h
@@ -0,0 +1,143 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#pragma once
+
+#include <unordered_map>
+
+#include <base/macros.h>
+#include <base/memory/ref_counted.h>
+#include <base/memory/weak_ptr.h>
+#include <base/single_thread_task_runner.h>
+
+#include <bluetooth/binder/IBluetooth.h>
+#include <bluetooth/binder/IBluetoothGattServerCallback.h>
+#include <bluetooth/gatt_identifier.h>
+
+namespace heart_rate {
+
+// Implements an example GATT Heart Rate service. This class emulates the
+// behavior of a heart rate service by sending fake heart-rate pulses.
+class HeartRateServer : public ipc::binder::BnBluetoothGattServerCallback {
+ public:
+  HeartRateServer(
+      android::sp<ipc::binder::IBluetooth> bluetooth,
+      scoped_refptr<base::SingleThreadTaskRunner> main_task_runner,
+      bool advertise);
+  ~HeartRateServer() override;
+
+  // Set up the server and register the GATT services with the stack. This
+  // initiates a set of asynchronous procedures. Invokes |callback|
+  // asynchronously with the result of the operation.
+  using RunCallback = std::function<void(bool success)>;
+  bool Run(const RunCallback& callback);
+
+ private:
+  // Helpers for posting heart rate measurement notifications.
+  void ScheduleNextMeasurement();
+  void SendHeartRateMeasurement();
+  void BuildHeartRateMeasurementValue(std::vector<uint8_t>* out_value);
+
+  // ipc::binder::IBluetoothGattServerCallback override:
+  void OnServerRegistered(int status, int server_if) override;
+  void OnServiceAdded(
+      int status,
+      const bluetooth::GattIdentifier& service_id) override;
+  void OnCharacteristicReadRequest(
+      const std::string& device_address,
+      int request_id, int offset, bool is_long,
+      const bluetooth::GattIdentifier& characteristic_id) override;
+  void OnDescriptorReadRequest(
+      const std::string& device_address,
+      int request_id, int offset, bool is_long,
+      const bluetooth::GattIdentifier& descriptor_id) override;
+  void OnCharacteristicWriteRequest(
+      const std::string& device_address,
+      int request_id, int offset, bool is_prepare_write, bool need_response,
+      const std::vector<uint8_t>& value,
+      const bluetooth::GattIdentifier& characteristic_id) override;
+  void OnDescriptorWriteRequest(
+      const std::string& device_address,
+      int request_id, int offset, bool is_prepare_write, bool need_response,
+      const std::vector<uint8_t>& value,
+      const bluetooth::GattIdentifier& descriptor_id) override;
+  void OnExecuteWriteRequest(
+      const std::string& device_address,
+      int request_id, bool is_execute) override;
+  void OnNotificationSent(const std::string& device_address,
+                          int status) override;
+
+  // Single mutex to protect all variables below.
+  std::mutex mutex_;
+
+  // This stores whether or not at least one remote device has written to the
+  // CCC descriptor.
+  bool simulation_started_;
+
+  // The IBluetooth and IBluetoothGattServer binders that we use to communicate
+  // with the Bluetooth daemon's GATT server features.
+  android::sp<ipc::binder::IBluetooth> bluetooth_;
+  android::sp<ipc::binder::IBluetoothGattServer> gatt_;
+
+  // ID assigned to us by the daemon to operate on our dedicated GATT server
+  // instance.
+  int server_if_;
+
+  // Callback passed to Run(). We use this to tell main that all attributes have
+  // been registered with the daemon.
+  RunCallback pending_run_cb_;
+
+  // Stores whether or not an outgoing notification is still pending. We use
+  // this to throttle notifications so that we don't accidentally congest the
+  // connection.
+  std::unordered_map<std::string, bool> pending_notification_map_;
+
+  // The current HR notification count.
+  int hr_notification_count_;
+
+  // The Energy Expended value we use in our notifications.
+  uint16_t energy_expended_;
+
+  // The unique IDs that refer to each of the Heart Rate Service GATT objects.
+  // These returned to us from the Bluetooth daemon as we populate the database.
+  bluetooth::GattIdentifier hr_service_id_;
+  bluetooth::GattIdentifier hr_measurement_id_;
+  bluetooth::GattIdentifier hr_measurement_cccd_id_;
+  bluetooth::GattIdentifier body_sensor_loc_id_;
+  bluetooth::GattIdentifier hr_control_point_id_;
+
+  // The daemon itself doesn't maintain a Client Characteristic Configuration
+  // mapping, so we do it ourselves here.
+  std::unordered_map<std::string, uint8_t> device_ccc_map_;
+
+  // Wether we should also start advertising
+  bool advertise_;
+
+  // libchrome task runner that we use to post heart rate measurement
+  // notifications on the main thread.
+  scoped_refptr<base::SingleThreadTaskRunner> main_task_runner_;
+
+  // We use this to pass weak_ptr's to base::Bind, which won't execute if the
+  // HeartRateServer object gets deleted. This is a convenience utility from
+  // libchrome and we use it here since base::TaskRunner uses base::Callback.
+  // Note: This should remain the last member so that it'll be destroyed and
+  // invalidate its weak pointers before any other members are destroyed.
+  base::WeakPtrFactory<HeartRateServer> weak_ptr_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(HeartRateServer);
+};
+
+}  // namespace heart_rate
diff --git a/rtkbt/code/bt/service/example/heart_rate/server_main.cpp b/rtkbt/code/bt/service/example/heart_rate/server_main.cpp
new file mode 100755
index 0000000..d1b63d4
--- /dev/null
+++ b/rtkbt/code/bt/service/example/heart_rate/server_main.cpp
@@ -0,0 +1,154 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#ifdef BT_LIBCHROME_NDEBUG
+#define NDEBUG 1
+#endif
+
+#include <base/at_exit.h>
+#include <base/bind.h>
+#include <base/command_line.h>
+#include <base/location.h>
+#include <base/logging.h>
+#include <base/message_loop/message_loop.h>
+#include <base/run_loop.h>
+
+#include <binder/IPCThreadState.h>
+#include <binder/ProcessState.h>
+
+#include <bluetooth/binder/IBluetooth.h>
+
+#include "service/example/heart_rate/heart_rate_server.h"
+
+using android::sp;
+using ipc::binder::IBluetooth;
+
+namespace {
+
+void QuitMessageLoop() {
+  // I don't know why both of these calls are necessary but the message loop
+  // doesn't stop unless I call both. Bug in base::MessageLoop?
+  base::RunLoop().Quit();
+  base::MessageLoop::current()->QuitNow();
+}
+
+// Handles the case where the Bluetooth process dies.
+class BluetoothDeathRecipient : public android::IBinder::DeathRecipient {
+ public:
+  BluetoothDeathRecipient(
+      scoped_refptr<base::SingleThreadTaskRunner> main_task_runner)
+      : main_task_runner_(main_task_runner) {
+  }
+
+  ~BluetoothDeathRecipient() override = default;
+
+  // android::IBinder::DeathRecipient override:
+  void binderDied(const android::wp<android::IBinder>& /* who */) override {
+    LOG(ERROR) << "The Bluetooth daemon has died. Aborting.";
+
+    // binderDied executes on a dedicated thread. We need to stop the main loop
+    // on the main thread so we post a message to it here. The main loop only
+    // runs on the main thread.
+    main_task_runner_->PostTask(FROM_HERE, base::Bind(&QuitMessageLoop));
+
+    android::IPCThreadState::self()->stopProcess();
+  }
+
+ private:
+  scoped_refptr<base::SingleThreadTaskRunner> main_task_runner_;
+};
+
+}  // namespace
+
+int main(int argc, char* argv[]) {
+  base::AtExitManager exit_manager;
+  base::CommandLine::Init(argc, argv);
+  logging::LoggingSettings log_settings;
+
+  // Initialize global logging based on command-line parameters (this is a
+  // libchrome pattern).
+  if (!logging::InitLogging(log_settings)) {
+    LOG(ERROR) << "Failed to set up logging";
+    return EXIT_FAILURE;
+  }
+
+  // Set up a message loop so that we can schedule timed Heart Rate
+  // notifications.
+  base::MessageLoop main_loop;
+
+  LOG(INFO) << "Starting GATT Heart Rate Service sample";
+
+  // Obtain the IBluetooth binder from the service manager service.
+  sp<IBluetooth> bluetooth = IBluetooth::getClientInterface();
+  if (!bluetooth.get()) {
+    LOG(ERROR) << "Failed to obtain a handle on IBluetooth";
+    return EXIT_FAILURE;
+  }
+
+  // Bluetooth needs to be enabled for our demo to work.
+  if (!bluetooth->IsEnabled()) {
+    LOG(ERROR) << "Bluetooth is not enabled.";
+    return EXIT_FAILURE;
+  }
+
+  // Register for death notifications on the IBluetooth binder. This let's us
+  // handle the case where the Bluetooth daemon process (bluetoothtbd) dies
+  // outside of our control.
+  sp<BluetoothDeathRecipient> dr(
+      new BluetoothDeathRecipient(main_loop.task_runner()));
+  if (android::IInterface::asBinder(bluetooth.get())->linkToDeath(dr) !=
+      android::NO_ERROR) {
+    LOG(ERROR) << "Failed to register DeathRecipient for IBluetooth";
+    return EXIT_FAILURE;
+  }
+
+  // Initialize the Binder process thread pool. We have to set this up,
+  // otherwise, incoming callbacks from the Bluetooth daemon would block the
+  // main thread (in other words, we have to do this as we are a "Binder
+  // server").
+  android::ProcessState::self()->startThreadPool();
+
+  // heart_rate::HeartRateServer notifies success or failure asynchronously
+  // using a closure, so we set up a lambda for that here.
+  auto callback = [&](bool success) {
+    if (success) {
+      LOG(INFO) << "Heart Rate service started successfully";
+      return;
+    }
+
+    LOG(ERROR) << "Starting Heart Rate server failed asynchronously";
+    main_loop.QuitWhenIdle();
+  };
+
+  bool advertise = base::CommandLine::ForCurrentProcess()->HasSwitch("advertise");
+
+  // Create the Heart Rate server.
+  std::unique_ptr<heart_rate::HeartRateServer> hr(
+      new heart_rate::HeartRateServer(bluetooth, main_loop.task_runner(), advertise));
+  if (!hr->Run(callback)) {
+    LOG(ERROR) << "Failed to start Heart Rate server";
+    return EXIT_FAILURE;
+  }
+
+  // Run the main loop on the main process thread. Binder callbacks will be
+  // received in dedicated threads set up by the ProcessState::startThreadPool
+  // call above but we use this main loop for sending out heart rate
+  // notifications.
+  main_loop.Run();
+
+  LOG(INFO) << "Exiting";
+  return EXIT_SUCCESS;
+}
diff --git a/rtkbt/code/bt/service/gatt_client.cpp b/rtkbt/code/bt/service/gatt_client.cpp
new file mode 100755
index 0000000..a8f48c8
--- /dev/null
+++ b/rtkbt/code/bt/service/gatt_client.cpp
@@ -0,0 +1,111 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#include "service/gatt_client.h"
+
+#include <base/logging.h>
+
+using std::lock_guard;
+using std::mutex;
+
+namespace bluetooth {
+
+// GattClient implementation
+// ========================================================
+
+GattClient::GattClient(const UUID& uuid, int client_id)
+    : app_identifier_(uuid),
+      client_id_(client_id) {
+}
+
+GattClient::~GattClient() {
+  // Automatically unregister the client.
+  VLOG(1) << "GattClient unregistering client: " << client_id_;
+
+  hal::BluetoothGattInterface::Get()->GetClientHALInterface()->
+      unregister_client(client_id_);
+}
+
+const UUID& GattClient::GetAppIdentifier() const {
+  return app_identifier_;
+}
+
+int GattClient::GetInstanceId() const {
+  return client_id_;
+}
+
+// GattClientFactory implementation
+// ========================================================
+
+GattClientFactory::GattClientFactory() {
+  hal::BluetoothGattInterface::Get()->AddClientObserver(this);
+}
+
+GattClientFactory::~GattClientFactory() {
+  hal::BluetoothGattInterface::Get()->RemoveClientObserver(this);
+}
+
+bool GattClientFactory::RegisterInstance(
+    const UUID& uuid,
+    const RegisterCallback& callback) {
+  VLOG(1) << __func__ << " - UUID: " << uuid.ToString();
+  lock_guard<mutex> lock(pending_calls_lock_);
+
+  if (pending_calls_.find(uuid) != pending_calls_.end()) {
+    LOG(ERROR) << "GATT client with given UUID already registered - "
+               << "UUID: " << uuid.ToString();
+    return false;
+  }
+
+  const btgatt_client_interface_t* hal_iface =
+      hal::BluetoothGattInterface::Get()->GetClientHALInterface();
+  bt_uuid_t app_uuid = uuid.GetBlueDroid();
+
+  if (hal_iface->register_client(&app_uuid) != BT_STATUS_SUCCESS)
+    return false;
+
+  pending_calls_[uuid] = callback;
+
+  return true;
+}
+
+void GattClientFactory::RegisterClientCallback(
+    hal::BluetoothGattInterface* /* gatt_iface */,
+    int status, int client_id,
+    const bt_uuid_t& app_uuid) {
+  UUID uuid(app_uuid);
+
+  auto iter = pending_calls_.find(uuid);
+  if (iter == pending_calls_.end()) {
+    VLOG(1) << "Ignoring callback for unknown app_id: " << uuid.ToString();
+    return;
+  }
+
+  bool success = (status == BT_STATUS_SUCCESS);
+  BLEStatus result = success ? BLE_STATUS_SUCCESS : BLE_STATUS_FAILURE;
+
+  // No need to construct a client if the call wasn't successful.
+  std::unique_ptr<GattClient> client;
+  if (success)
+    client.reset(new GattClient(uuid, client_id));
+
+  // Notify the result via the result callback.
+  iter->second(result, uuid, std::move(client));
+
+  pending_calls_.erase(iter);
+}
+
+}  // namespace bluetooth
diff --git a/rtkbt/code/bt/service/gatt_client.h b/rtkbt/code/bt/service/gatt_client.h
new file mode 100755
index 0000000..eb94405
--- /dev/null
+++ b/rtkbt/code/bt/service/gatt_client.h
@@ -0,0 +1,84 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#pragma once
+
+#include <mutex>
+#include <unordered_map>
+
+#include <base/macros.h>
+
+#include "service/bluetooth_instance.h"
+#include "service/common/bluetooth/uuid.h"
+#include "service/hal/bluetooth_gatt_interface.h"
+
+namespace bluetooth {
+
+// A GattClient instance represents an application's handle to perform GATT
+// client-role operations. Instances cannot be created directly and should be
+// obtained through the factory.
+class GattClient : public BluetoothInstance {
+ public:
+  ~GattClient() override;
+
+  // BluetoothClientInstace overrides:
+  const UUID& GetAppIdentifier() const override;
+  int GetInstanceId() const override;
+
+ private:
+  friend class GattClientFactory;
+
+  // Constructor shouldn't be called directly as instances are meant to be
+  // obtained from the factory.
+  GattClient(const UUID& uuid, int client_id);
+
+  // See getters above for documentation.
+  UUID app_identifier_;
+  int client_id_;
+
+  DISALLOW_COPY_AND_ASSIGN(GattClient);
+};
+
+// GattClientFactory is used to register and obtain a per-application GattClient
+// instance. Users should call RegisterClient to obtain their own unique
+// GattClient instance that has been registered with the Bluetooth stack.
+class GattClientFactory : public BluetoothInstanceFactory,
+                          private hal::BluetoothGattInterface::ClientObserver {
+ public:
+  // Don't construct/destruct directly except in tests. Instead, obtain a handle
+  // from an Adapter instance.
+  GattClientFactory();
+  ~GattClientFactory() override;
+
+  // BluetoothInstanceFactory override:
+  bool RegisterInstance(const UUID& uuid,
+                        const RegisterCallback& callback) override;
+
+ private:
+  // hal::BluetoothGattInterface::ClientObserver override:
+  void RegisterClientCallback(
+      hal::BluetoothGattInterface* gatt_iface,
+      int status, int client_id,
+      const bt_uuid_t& app_uuid) override;
+
+  // Map of pending calls to register.
+  std::mutex pending_calls_lock_;
+  std::unordered_map<UUID, RegisterCallback> pending_calls_;
+
+  DISALLOW_COPY_AND_ASSIGN(GattClientFactory);
+};
+
+}  // namespace bluetooth
diff --git a/rtkbt/code/bt/service/gatt_server.cpp b/rtkbt/code/bt/service/gatt_server.cpp
new file mode 100755
index 0000000..e70f093
--- /dev/null
+++ b/rtkbt/code/bt/service/gatt_server.cpp
@@ -0,0 +1,1022 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#include "service/gatt_server.h"
+
+#include "service/common/bluetooth/util/address_helper.h"
+#include "service/hal/gatt_helpers.h"
+#include "service/logging_helpers.h"
+
+using std::lock_guard;
+using std::mutex;
+
+namespace bluetooth {
+
+namespace {
+
+bool operator==(const bt_bdaddr_t& lhs, const bt_bdaddr_t& rhs) {
+  return memcmp(&lhs, &rhs, sizeof(lhs)) == 0;
+}
+
+bool operator!=(const bt_bdaddr_t& lhs, const bt_bdaddr_t& rhs) {
+  return !(lhs == rhs);
+}
+
+}  // namespace
+
+// GattServer implementation
+// ========================================================
+
+GattServer::GattServer(const UUID& uuid, int server_id)
+    : app_identifier_(uuid),
+      server_id_(server_id),
+      delegate_(nullptr) {
+}
+
+GattServer::~GattServer() {
+  // Automatically unregister the server.
+  VLOG(1) << "GattServer unregistering: " << server_id_;
+
+  // Unregister as observer so we no longer receive any callbacks.
+  hal::BluetoothGattInterface::Get()->RemoveServerObserver(this);
+
+  // Unregister this server, stop all services, and ignore the result.
+  // TODO(armansito): stop and remove all services here? unregister_server
+  // should really take care of that.
+  hal::BluetoothGattInterface::Get()->
+      GetServerHALInterface()->unregister_server(server_id_);
+}
+
+void GattServer::SetDelegate(Delegate* delegate) {
+  lock_guard<mutex> lock(mutex_);
+  delegate_ = delegate;
+}
+
+const UUID& GattServer::GetAppIdentifier() const {
+  return app_identifier_;
+}
+
+int GattServer::GetInstanceId() const {
+  return server_id_;
+}
+
+std::unique_ptr<GattIdentifier> GattServer::BeginServiceDeclaration(
+    const UUID& uuid, bool is_primary) {
+  VLOG(1) << __func__ << " server_id: " << server_id_
+          << " - UUID: " << uuid.ToString()
+          << ", is_primary: " << is_primary;
+  lock_guard<mutex> lock(mutex_);
+
+  if (pending_decl_) {
+    LOG(ERROR) << "Already began service declaration";
+    return nullptr;
+  }
+
+  CHECK(!pending_id_);
+  CHECK(!pending_decl_);
+  CHECK(!pending_end_decl_cb_);
+
+  auto service_id = GetIdForService(uuid, is_primary);
+  CHECK(service_id);
+
+  // Pass 0 for permissions and properties as this is a service decl.
+  AttributeEntry entry(
+      *service_id, kCharacteristicPropertyNone, kAttributePermissionNone);
+
+  pending_decl_.reset(new ServiceDeclaration());
+  pending_decl_->num_handles++;  // 1 handle for the service decl. attribute
+  pending_decl_->service_id = *service_id;
+  pending_decl_->attributes.push_back(entry);
+
+  return service_id;
+}
+
+std::unique_ptr<GattIdentifier> GattServer::AddCharacteristic(
+      const UUID& uuid, int properties, int permissions) {
+  VLOG(1) << __func__ << " server_id: " << server_id_
+          << " - UUID: " << uuid.ToString()
+          << ", properties: " << properties
+          << ", permissions: " << permissions;
+  lock_guard<mutex> lock(mutex_);
+
+  if (!pending_decl_) {
+    LOG(ERROR) << "Service declaration not begun";
+    return nullptr;
+  }
+
+  if (pending_end_decl_cb_) {
+    LOG(ERROR) << "EndServiceDeclaration in progress, cannot modify service";
+    return nullptr;
+  }
+
+  auto char_id = GetIdForCharacteristic(uuid);
+  CHECK(char_id);
+  AttributeEntry entry(*char_id, properties, permissions);
+
+  // 2 handles for the characteristic declaration and the value attributes.
+  pending_decl_->num_handles += 2;
+  pending_decl_->attributes.push_back(entry);
+
+  return char_id;
+}
+
+std::unique_ptr<GattIdentifier> GattServer::AddDescriptor(
+    const UUID& uuid, int permissions) {
+  VLOG(1) << __func__ << " server_id: " << server_id_
+          << " - UUID: " << uuid.ToString()
+          << ", permissions: " << permissions;
+  lock_guard<mutex> lock(mutex_);
+
+  if (!pending_decl_) {
+    LOG(ERROR) << "Service declaration not begun";
+    return nullptr;
+  }
+
+  if (pending_end_decl_cb_) {
+    LOG(ERROR) << "EndServiceDeclaration in progress, cannot modify service";
+    return nullptr;
+  }
+
+  auto desc_id = GetIdForDescriptor(uuid);
+  if (!desc_id)
+    return nullptr;
+
+  AttributeEntry entry(*desc_id, kCharacteristicPropertyNone, permissions);
+
+  // 1 handle for the descriptor attribute.
+  pending_decl_->num_handles += 1;
+  pending_decl_->attributes.push_back(entry);
+
+  return desc_id;
+}
+
+bool GattServer::EndServiceDeclaration(const ResultCallback& callback) {
+  VLOG(1) << __func__ << " server_id: " << server_id_;
+  lock_guard<mutex> lock(mutex_);
+
+  if (!callback) {
+    LOG(ERROR) << "|callback| cannot be NULL";
+    return false;
+  }
+
+  if (!pending_decl_) {
+    LOG(ERROR) << "Service declaration not begun";
+    return false;
+  }
+
+  if (pending_end_decl_cb_) {
+    LOG(ERROR) << "EndServiceDeclaration already in progress";
+    return false;
+  }
+
+  CHECK(!pending_id_);
+
+  // There has to be at least one entry here for the service declaration
+  // attribute.
+  CHECK(pending_decl_->num_handles > 0);
+  CHECK(!pending_decl_->attributes.empty());
+
+  std::unique_ptr<GattIdentifier> service_id = PopNextId();
+  CHECK(service_id->IsService());
+  CHECK(*service_id == pending_decl_->service_id);
+
+  btgatt_srvc_id_t hal_id;
+  hal::GetHALServiceId(*service_id, &hal_id);
+
+  bt_status_t status = hal::BluetoothGattInterface::Get()->
+      GetServerHALInterface()->add_service(
+          server_id_, &hal_id, pending_decl_->num_handles);
+  if (status != BT_STATUS_SUCCESS) {
+    LOG(ERROR) << "Failed to initiate call to populate GATT service";
+    CleanUpPendingData();
+    return false;
+  }
+
+  pending_id_ = std::move(service_id);
+  pending_end_decl_cb_ = callback;
+
+  return true;
+}
+
+std::unique_ptr<GattIdentifier> GattServer::GetIdForService(
+    const UUID& uuid, bool is_primary) {
+  // Calculate the instance ID for this service by searching through the handle
+  // map to see how many occurrences of the same service UUID we find.
+  int inst_id = 0;
+  for (const auto& iter : id_to_handle_map_) {
+    const GattIdentifier* gatt_id = &iter.first;
+
+    if (!gatt_id->IsService())
+      continue;
+
+    if (gatt_id->service_uuid() == uuid)
+      ++inst_id;
+  }
+
+  // Pass empty string for the address as this is a local service.
+  return GattIdentifier::CreateServiceId("", inst_id, uuid, is_primary);
+}
+
+std::unique_ptr<GattIdentifier> GattServer::GetIdForCharacteristic(
+    const UUID& uuid) {
+  CHECK(pending_decl_);
+
+  // Calculate the instance ID for this characteristic by searching through the
+  // pending entries.
+  int inst_id = 0;
+  for (const auto& entry : pending_decl_->attributes) {
+    const GattIdentifier& gatt_id = entry.id;
+
+    if (!gatt_id.IsCharacteristic())
+      continue;
+
+    if (gatt_id.characteristic_uuid() == uuid)
+      ++inst_id;
+  }
+
+  CHECK(pending_decl_->service_id.IsService());
+
+  return GattIdentifier::CreateCharacteristicId(
+      inst_id, uuid, pending_decl_->service_id);
+}
+
+std::unique_ptr<GattIdentifier> GattServer::GetIdForDescriptor(
+    const UUID& uuid) {
+  CHECK(pending_decl_);
+
+  // Calculate the instance ID for this descriptor by searching through the
+  // pending entries. We iterate in reverse until we find a characteristic
+  // entry.
+  CHECK(!pending_decl_->attributes.empty());
+  int inst_id = 0;
+  bool char_found = false;
+  GattIdentifier char_id;
+  for (auto iter = pending_decl_->attributes.end() - 1;
+       iter != pending_decl_->attributes.begin();  // Begin is always a service
+       --iter) {
+    const GattIdentifier& gatt_id = iter->id;
+
+    if (gatt_id.IsCharacteristic()) {
+      // Found the owning characteristic.
+      char_found = true;
+      char_id = gatt_id;
+      break;
+    }
+
+    if (!gatt_id.IsDescriptor()) {
+      // A descriptor must be preceded by a descriptor or a characteristic.
+      LOG(ERROR) << "Descriptors must come directly after a characteristic or "
+                 << "another descriptor.";
+      return nullptr;
+    }
+
+    if (gatt_id.descriptor_uuid() == uuid)
+      ++inst_id;
+  }
+
+  if (!char_found) {
+    LOG(ERROR) << "No characteristic found to add the descriptor to.";
+    return nullptr;
+  }
+
+  return GattIdentifier::CreateDescriptorId(inst_id, uuid, char_id);
+}
+
+bool GattServer::SendResponse(
+    const std::string& device_address, int request_id,
+    GATTError error, int offset,
+    const std::vector<uint8_t>& value) {
+  VLOG(1) << __func__ << " - server_id: " << server_id_
+          << " device_address: " << device_address
+          << " request_id: " << request_id
+          << " error: " << error
+          << " offset: " << offset;
+  lock_guard<mutex> lock(mutex_);
+
+  bt_bdaddr_t addr;
+  if (!util::BdAddrFromString(device_address, &addr)) {
+    LOG(ERROR) << "Invalid device address given: " << device_address;
+    return false;
+  }
+
+  if (value.size() + offset > BTGATT_MAX_ATTR_LEN) {
+    LOG(ERROR) << "Value is too large";
+    return false;
+  }
+
+  // Find the correct connection ID for |device_address| and |request_id|.
+  auto iter = conn_addr_map_.find(device_address);
+  if (iter == conn_addr_map_.end()) {
+    LOG(ERROR) << "No known connections for device address: " << device_address;
+    return false;
+  }
+
+  std::shared_ptr<Connection> connection;
+  for (auto tmp : iter->second) {
+    if (tmp->request_id_to_handle.find(request_id) ==
+        tmp->request_id_to_handle.end())
+      continue;
+
+    connection = tmp;
+  }
+
+  if (!connection) {
+    LOG(ERROR) << "Pending request with ID " << request_id
+               << " not found for device with BD_ADDR: " << device_address;
+    return false;
+  }
+
+  btgatt_response_t response;
+  memset(&response, 0, sizeof(response));
+
+  // We keep -1 as the handle for "Execute Write Request". In that case,
+  // there is no need to populate the response data. Just send zeros back.
+  int handle = connection->request_id_to_handle[request_id];
+  response.handle = handle;
+  response.attr_value.handle = handle;
+  if (handle != -1) {
+    memcpy(response.attr_value.value, value.data(), value.size());
+    response.attr_value.offset = offset;
+    response.attr_value.len = value.size();
+  }
+
+  bt_status_t result = hal::BluetoothGattInterface::Get()->
+      GetServerHALInterface()->send_response(
+          connection->conn_id, request_id, error, &response);
+  if (result != BT_STATUS_SUCCESS) {
+    LOG(ERROR) << "Failed to initiate call to send GATT response";
+    return false;
+  }
+
+  connection->request_id_to_handle.erase(request_id);
+
+  return true;
+}
+
+bool GattServer::SendNotification(
+    const std::string& device_address,
+    const GattIdentifier& characteristic_id,
+    bool confirm,
+    const std::vector<uint8_t>& value,
+    const GattCallback& callback) {
+  VLOG(1) << " - server_id: " << server_id_
+          << " device_address: " << device_address
+          << " confirm: " << confirm;
+  lock_guard<mutex> lock(mutex_);
+
+  bt_bdaddr_t addr;
+  if (!util::BdAddrFromString(device_address, &addr)) {
+    LOG(ERROR) << "Invalid device address given: " << device_address;
+    return false;
+  }
+
+  // Get the connection IDs for which we will send this notification.
+  auto conn_iter = conn_addr_map_.find(device_address);
+  if (conn_iter == conn_addr_map_.end()) {
+    LOG(ERROR) << "No known connections for device with address: "
+               << device_address;
+    return false;
+  }
+
+  // Make sure that |characteristic_id| matches a valid attribute handle.
+  auto handle_iter = id_to_handle_map_.find(characteristic_id);
+  if (handle_iter == id_to_handle_map_.end()) {
+    LOG(ERROR) << "Unknown characteristic";
+    return false;
+  }
+
+  std::shared_ptr<PendingIndication> pending_ind(
+      new PendingIndication(callback));
+
+  // Send the notification/indication on all matching connections.
+  int send_count = 0;
+  for (auto conn : conn_iter->second) {
+    // Make sure that one isn't already pending for this connection.
+    if (pending_indications_.find(conn->conn_id) !=
+        pending_indications_.end()) {
+      VLOG(1) << "A" << (confirm ? "n indication" : " notification")
+              << " is already pending for connection: " << conn->conn_id;
+      continue;
+    }
+
+    // The HAL API takes char* rather const char* for |value|, so we have to
+    // cast away the const.
+    // TODO(armansito): Make HAL accept const char*.
+    bt_status_t status = hal::BluetoothGattInterface::Get()->
+        GetServerHALInterface()->send_indication(
+            server_id_,
+            handle_iter->second,
+            conn->conn_id,
+            value.size(),
+            confirm,
+            reinterpret_cast<char*>(const_cast<uint8_t*>(value.data())));
+
+    // Increment the send count if this was successful. We don't immediately
+    // fail if the HAL returned an error. It's better to report success as long
+    // as we sent out at least one notification to this device as
+    // multi-transport GATT connections from the same BD_ADDR will be rare
+    // enough already.
+    if (status != BT_STATUS_SUCCESS)
+      continue;
+
+    send_count++;
+    pending_indications_[conn->conn_id] = pending_ind;
+  }
+
+  if (send_count == 0) {
+    LOG(ERROR) << "Failed to send notifications/indications to device: "
+               << device_address;
+    return false;
+  }
+
+  return true;
+}
+
+void GattServer::ConnectionCallback(
+    hal::BluetoothGattInterface* /* gatt_iface */,
+    int conn_id, int server_id,
+    int connected,
+    const bt_bdaddr_t& bda) {
+  lock_guard<mutex> lock(mutex_);
+
+  if (server_id != server_id_)
+    return;
+
+  std::string device_address = BtAddrString(&bda);
+
+  VLOG(1) << __func__ << " conn_id: " << conn_id << " connected: " << connected
+          << " BD_ADDR: " << device_address;
+
+  if (!connected) {
+    // Erase the entry if we were connected to it.
+    VLOG(1) << "No longer connected: " << device_address;
+    conn_id_map_.erase(conn_id);
+    auto iter = conn_addr_map_.find(device_address);
+    if (iter == conn_addr_map_.end())
+      return;
+
+    // Remove the appropriate connection objects in the address.
+    for (auto conn_iter = iter->second.begin(); conn_iter != iter->second.end();
+         ++conn_iter) {
+      if ((*conn_iter)->conn_id != conn_id)
+        continue;
+
+      iter->second.erase(conn_iter);
+      break;
+    }
+
+    return;
+  }
+
+  if (conn_id_map_.find(conn_id) != conn_id_map_.end()) {
+    LOG(WARNING) << "Connection entry already exists; "
+                 << "ignoring ConnectionCallback";
+    return;
+  }
+
+  LOG(INFO) << "Added connection entry for conn_id: " << conn_id
+            << " device address: " << device_address;
+  std::shared_ptr<Connection> connection(new Connection(conn_id, bda));
+  conn_id_map_[conn_id] = connection;
+  conn_addr_map_[device_address].push_back(connection);
+}
+
+void GattServer::ServiceAddedCallback(
+    hal::BluetoothGattInterface* gatt_iface,
+    int status, int server_id,
+    const btgatt_srvc_id_t& srvc_id,
+    int service_handle) {
+  lock_guard<mutex> lock(mutex_);
+
+  if (server_id != server_id_)
+    return;
+
+  // Construct a GATT identifier.
+  auto gatt_id = hal::GetServiceIdFromHAL(srvc_id);
+  CHECK(pending_id_);
+  CHECK(*gatt_id == *pending_id_);
+  CHECK(*gatt_id == pending_decl_->service_id);
+  CHECK(pending_id_->IsService());
+
+  VLOG(1) << __func__ << " - status: " << status
+          << " server_id: " << server_id
+          << " handle: " << service_handle
+          << " UUID: " << gatt_id->service_uuid().ToString();
+
+  if (status != BT_STATUS_SUCCESS) {
+    NotifyEndCallbackAndClearData(static_cast<BLEStatus>(status), *gatt_id);
+    return;
+  }
+
+  // Add this to the handle map.
+  pending_handle_map_[*gatt_id] = service_handle;
+  CHECK(-1 == pending_decl_->service_handle);
+  pending_decl_->service_handle = service_handle;
+
+  HandleNextEntry(gatt_iface);
+}
+
+void GattServer::CharacteristicAddedCallback(
+    hal::BluetoothGattInterface* gatt_iface,
+    int status, int server_id,
+    const bt_uuid_t& uuid,
+    int service_handle,
+    int char_handle) {
+  lock_guard<mutex> lock(mutex_);
+
+  if (server_id != server_id_)
+    return;
+
+  CHECK(pending_decl_);
+  CHECK(pending_decl_->service_handle == service_handle);
+  CHECK(pending_id_);
+  CHECK(pending_id_->IsCharacteristic());
+  CHECK(pending_id_->characteristic_uuid() == UUID(uuid));
+
+  VLOG(1) << __func__ << " - status: " << status
+          << " server_id: " << server_id
+          << " service_handle: " << service_handle
+          << " char_handle: " << char_handle;
+
+  if (status != BT_STATUS_SUCCESS) {
+    NotifyEndCallbackAndClearData(static_cast<BLEStatus>(status),
+                                  pending_decl_->service_id);
+    return;
+  }
+
+  // Add this to the handle map and continue.
+  pending_handle_map_[*pending_id_] = char_handle;
+  HandleNextEntry(gatt_iface);
+}
+
+void GattServer::DescriptorAddedCallback(
+    hal::BluetoothGattInterface* gatt_iface,
+    int status, int server_id,
+    const bt_uuid_t& uuid,
+    int service_handle,
+    int desc_handle) {
+  lock_guard<mutex> lock(mutex_);
+
+  if (server_id != server_id_)
+    return;
+
+  CHECK(pending_decl_);
+  CHECK(pending_decl_->service_handle == service_handle);
+  CHECK(pending_id_);
+  CHECK(pending_id_->IsDescriptor());
+  CHECK(pending_id_->descriptor_uuid() == UUID(uuid));
+
+  VLOG(1) << __func__ << " - status: " << status
+          << " server_id: " << server_id
+          << " service_handle: " << service_handle
+          << " desc_handle: " << desc_handle;
+
+  if (status != BT_STATUS_SUCCESS) {
+    NotifyEndCallbackAndClearData(static_cast<BLEStatus>(status),
+                                  pending_decl_->service_id);
+    return;
+  }
+
+  // Add this to the handle map and contiue.
+  pending_handle_map_[*pending_id_] = desc_handle;
+  HandleNextEntry(gatt_iface);
+}
+
+void GattServer::ServiceStartedCallback(
+    hal::BluetoothGattInterface* gatt_iface,
+    int status, int server_id,
+    int service_handle) {
+  lock_guard<mutex> lock(mutex_);
+
+  if (server_id != server_id_)
+    return;
+
+  CHECK(pending_id_);
+  CHECK(pending_decl_);
+  CHECK(pending_decl_->service_handle == service_handle);
+
+  VLOG(1) << __func__ << " - server_id: " << server_id
+          << " handle: " << service_handle;
+
+  // If we failed to start the service, remove it from the database and ignore
+  // the result.
+  if (status != BT_STATUS_SUCCESS) {
+    gatt_iface->GetServerHALInterface()->delete_service(
+        server_id_, service_handle);
+  }
+
+  // Complete the operation.
+  NotifyEndCallbackAndClearData(static_cast<BLEStatus>(status),
+                                pending_decl_->service_id);
+}
+
+void GattServer::ServiceStoppedCallback(
+    hal::BluetoothGattInterface* /* gatt_iface */,
+    int /* status */,
+    int /* server_id */,
+    int /* service_handle */) {
+  // TODO(armansito): Support stopping a service.
+}
+
+void GattServer::RequestReadCallback(
+    hal::BluetoothGattInterface* /* gatt_iface */,
+    int conn_id, int trans_id,
+    const bt_bdaddr_t& bda,
+    int attribute_handle, int offset,
+    bool is_long) {
+  lock_guard<mutex> lock(mutex_);
+
+  // Check to see if we know about this connection. Otherwise ignore the
+  // request.
+  auto conn = GetConnection(conn_id, bda, trans_id);
+  if (!conn)
+    return;
+
+  std::string device_address = BtAddrString(&bda);
+
+  VLOG(1) << __func__ << " - conn_id: " << conn_id << " trans_id: " << trans_id
+          << " BD_ADDR: " << device_address
+          << " attribute_handle: " << attribute_handle << " offset: " << offset
+          << " is_long: " << is_long;
+
+  // Make sure that the handle is valid.
+  auto iter = handle_to_id_map_.find(attribute_handle);
+  if (iter == handle_to_id_map_.end()) {
+    LOG(ERROR) << "Request received for unknown handle: " << attribute_handle;
+    return;
+  }
+
+  conn->request_id_to_handle[trans_id] = attribute_handle;
+
+  // If there is no delegate then there is nobody to handle request. The request
+  // will eventually timeout and we should get a connection update that
+  // terminates the connection.
+  if (!delegate_) {
+    // TODO(armansito): Require a delegate at server registration so that this
+    // is never possible.
+    LOG(WARNING) << "No delegate was assigned to GattServer. Incoming request "
+                 << "will time out.";
+    return;
+  }
+
+  if (iter->second.IsCharacteristic()) {
+    delegate_->OnCharacteristicReadRequest(
+        this, device_address, trans_id, offset, is_long, iter->second);
+  } else if (iter->second.IsDescriptor()) {
+    delegate_->OnDescriptorReadRequest(
+        this, device_address, trans_id, offset, is_long, iter->second);
+  } else {
+    // Our API only delegates to applications those read requests for
+    // characteristic value and descriptor attributes. Everything else should be
+    // handled by the stack.
+    LOG(WARNING) << "Read request received for unsupported attribute";
+  }
+}
+
+void GattServer::RequestWriteCallback(
+    hal::BluetoothGattInterface* /* gatt_iface */,
+    int conn_id, int trans_id,
+    const bt_bdaddr_t& bda,
+    int attr_handle, int offset, int length,
+    bool need_rsp, bool is_prep, uint8_t* value) {
+  lock_guard<mutex> lock(mutex_);
+
+  if (length < 0) {
+    LOG(WARNING) << "Negative length value received";
+    return;
+  }
+
+  // Check to see if we know about this connection. Otherwise ignore the
+  // request.
+  auto conn = GetConnection(conn_id, bda, trans_id);
+  if (!conn)
+    return;
+
+  std::string device_address = BtAddrString(&bda);
+
+  VLOG(1) << __func__ << " - conn_id: " << conn_id << " trans_id: " << trans_id
+          << " BD_ADDR: " << device_address
+          << " attr_handle: " << attr_handle << " offset: " << offset
+          << " length: " << length << " need_rsp: " << need_rsp
+          << " is_prep: " << is_prep;
+
+  // Make sure that the handle is valid.
+  auto iter = handle_to_id_map_.find(attr_handle);
+  if (iter == handle_to_id_map_.end()) {
+    LOG(ERROR) << "Request received for unknown handle: " << attr_handle;
+    return;
+  }
+
+  // Store the request ID only if this is not a write-without-response. If
+  // another request occurs after this with the same request ID, then we'll
+  // simply process it normally, though that shouldn't ever happen.
+  if (need_rsp)
+    conn->request_id_to_handle[trans_id] = attr_handle;
+
+  // If there is no delegate then there is nobody to handle request. The request
+  // will eventually timeout and we should get a connection update that
+  // terminates the connection.
+  if (!delegate_) {
+    // TODO(armansito): Require a delegate at server registration so that this
+    // is never possible.
+    LOG(WARNING) << "No delegate was assigned to GattServer. Incoming request "
+                 << "will time out.";
+    return;
+  }
+
+  std::vector<uint8_t> value_vec(value, value + length);
+
+  if (iter->second.IsCharacteristic()) {
+    delegate_->OnCharacteristicWriteRequest(
+        this, device_address, trans_id, offset, is_prep, need_rsp,
+        value_vec, iter->second);
+  } else if (iter->second.IsDescriptor()) {
+    delegate_->OnDescriptorWriteRequest(
+        this, device_address, trans_id, offset, is_prep, need_rsp,
+        value_vec, iter->second);
+  } else {
+    // Our API only delegates to applications those read requests for
+    // characteristic value and descriptor attributes. Everything else should be
+    // handled by the stack.
+    LOG(WARNING) << "Write request received for unsupported attribute";
+  }
+}
+
+void GattServer::RequestExecWriteCallback(
+    hal::BluetoothGattInterface* /* gatt_iface */,
+    int conn_id, int trans_id,
+    const bt_bdaddr_t& bda, int exec_write) {
+  lock_guard<mutex> lock(mutex_);
+
+  // Check to see if we know about this connection. Otherwise ignore the
+  // request.
+  auto conn = GetConnection(conn_id, bda, trans_id);
+  if (!conn)
+    return;
+
+  std::string device_address = BtAddrString(&bda);
+
+  VLOG(1) << __func__ << " - conn_id: " << conn_id << " trans_id: " << trans_id
+          << " BD_ADDR: " << device_address << " exec_write: " << exec_write;
+
+  // Just store a dummy invalid handle as this request doesn't apply to a
+  // specific handle.
+  conn->request_id_to_handle[trans_id] = -1;
+
+  // If there is no delegate then there is nobody to handle request. The request
+  // will eventually timeout and we should get a connection update that
+  // terminates the connection.
+  if (!delegate_) {
+    // TODO(armansito): Require a delegate at server registration so that this
+    // is never possible.
+    LOG(WARNING) << "No delegate was assigned to GattServer. Incoming request "
+                 << "will time out.";
+    return;
+  }
+
+  delegate_->OnExecuteWriteRequest(this, device_address, trans_id, exec_write);
+}
+
+void GattServer::IndicationSentCallback(
+    hal::BluetoothGattInterface* /* gatt_iface */,
+    int conn_id, int status) {
+  VLOG(1) << __func__ << " conn_id: " << conn_id << " status: " << status;
+  lock_guard<mutex> lock(mutex_);
+
+  const auto& pending_ind_iter = pending_indications_.find(conn_id);
+  if (pending_ind_iter == pending_indications_.end()) {
+    VLOG(1) << "Unknown connection: " << conn_id;
+    return;
+  }
+
+  std::shared_ptr<PendingIndication> pending_ind = pending_ind_iter->second;
+  pending_indications_.erase(pending_ind_iter);
+
+  if (status == BT_STATUS_SUCCESS)
+    pending_ind->has_success = true;
+
+  // Invoke it if this was the last reference to the confirmation callback.
+  if (pending_ind.unique() && pending_ind->callback) {
+    pending_ind->callback(
+        pending_ind->has_success ?
+        GATT_ERROR_NONE : static_cast<GATTError>(status));
+  }
+}
+
+void GattServer::NotifyEndCallbackAndClearData(
+    BLEStatus status, const GattIdentifier& id) {
+  VLOG(1) << __func__ << " status: " << status;
+  CHECK(pending_end_decl_cb_);
+
+  if (status == BLE_STATUS_SUCCESS) {
+    id_to_handle_map_.insert(pending_handle_map_.begin(),
+                             pending_handle_map_.end());
+    for (auto& iter : pending_handle_map_)
+      handle_to_id_map_[iter.second] = iter.first;
+  }
+
+  pending_end_decl_cb_(status, id);
+
+  CleanUpPendingData();
+}
+
+void GattServer::CleanUpPendingData() {
+  pending_id_ = nullptr;
+  pending_decl_ = nullptr;
+  pending_end_decl_cb_ = ResultCallback();
+  pending_handle_map_.clear();
+}
+
+void GattServer::HandleNextEntry(hal::BluetoothGattInterface* gatt_iface) {
+  CHECK(pending_decl_);
+  CHECK(gatt_iface);
+
+  auto next_entry = PopNextEntry();
+  if (!next_entry) {
+    // No more entries. Call start_service to finish up.
+    bt_status_t status = gatt_iface->GetServerHALInterface()->start_service(
+        server_id_,
+        pending_decl_->service_handle,
+        TRANSPORT_BREDR | TRANSPORT_LE);
+
+    // Terminate the procedure in the case of an error.
+    if (status != BT_STATUS_SUCCESS) {
+      NotifyEndCallbackAndClearData(static_cast<BLEStatus>(status),
+                                    pending_decl_->service_id);
+    }
+
+    return;
+  }
+
+  if (next_entry->id.IsCharacteristic()) {
+    bt_uuid_t char_uuid = next_entry->id.characteristic_uuid().GetBlueDroid();
+    bt_status_t status = gatt_iface->GetServerHALInterface()->
+        add_characteristic(
+            server_id_,
+            pending_decl_->service_handle,
+            &char_uuid,
+            next_entry->char_properties,
+            next_entry->permissions);
+
+    // Terminate the procedure in the case of an error.
+    if (status != BT_STATUS_SUCCESS) {
+      NotifyEndCallbackAndClearData(static_cast<BLEStatus>(status),
+                                    pending_decl_->service_id);
+      return;
+    }
+
+    pending_id_.reset(new GattIdentifier(next_entry->id));
+    return;
+  }
+
+  if (next_entry->id.IsDescriptor()) {
+    bt_uuid_t desc_uuid = next_entry->id.descriptor_uuid().GetBlueDroid();
+    bt_status_t status = gatt_iface->GetServerHALInterface()->
+        add_descriptor(
+            server_id_,
+            pending_decl_->service_handle,
+            &desc_uuid,
+            next_entry->permissions);
+
+    // Terminate the procedure in the case of an error.
+    if (status != BT_STATUS_SUCCESS) {
+      NotifyEndCallbackAndClearData(static_cast<BLEStatus>(status),
+                                    pending_decl_->service_id);
+      return;
+    }
+
+    pending_id_.reset(new GattIdentifier(next_entry->id));
+    return;
+  }
+
+  NOTREACHED() << "Unexpected entry type";
+}
+
+std::shared_ptr<GattServer::Connection> GattServer::GetConnection(
+    int conn_id, const bt_bdaddr_t& bda, int request_id) {
+  auto iter = conn_id_map_.find(conn_id);
+  if (iter == conn_id_map_.end()) {
+    VLOG(1) << "Connection doesn't belong to this server";
+    return nullptr;
+  }
+
+  auto conn = iter->second;
+  if (conn->bdaddr != bda) {
+    LOG(WARNING) << "BD_ADDR: " << BtAddrString(&bda) << " doesn't match "
+                 << "connection ID: " << conn_id;
+    return nullptr;
+  }
+
+  if (conn->request_id_to_handle.find(request_id) !=
+      conn->request_id_to_handle.end()) {
+    VLOG(1) << "Request with ID: " << request_id << " already exists for "
+            << " connection: " << conn_id;
+    return nullptr;
+  }
+
+  return conn;
+}
+
+std::unique_ptr<GattServer::AttributeEntry> GattServer::PopNextEntry() {
+  CHECK(pending_decl_);
+
+  if (pending_decl_->attributes.empty())
+    return nullptr;
+
+  const auto& next = pending_decl_->attributes.front();
+  std::unique_ptr<AttributeEntry> entry(new AttributeEntry(next));
+
+  pending_decl_->attributes.pop_front();
+
+  return entry;
+}
+
+std::unique_ptr<GattIdentifier> GattServer::PopNextId() {
+  auto entry = PopNextEntry();
+  if (!entry)
+    return nullptr;
+
+  return std::unique_ptr<GattIdentifier>(new GattIdentifier(entry->id));
+}
+
+// GattServerFactory implementation
+// ========================================================
+
+GattServerFactory::GattServerFactory() {
+  hal::BluetoothGattInterface::Get()->AddServerObserver(this);
+}
+
+GattServerFactory::~GattServerFactory() {
+  hal::BluetoothGattInterface::Get()->RemoveServerObserver(this);
+}
+
+bool GattServerFactory::RegisterInstance(
+    const UUID& uuid,
+    const RegisterCallback& callback) {
+  VLOG(1) << __func__ << " - UUID: " << uuid.ToString();
+  lock_guard<mutex> lock(pending_calls_lock_);
+
+  if (pending_calls_.find(uuid) != pending_calls_.end()) {
+    LOG(ERROR) << "GATT-server client with given UUID already being registered "
+               << " - UUID: " << uuid.ToString();
+    return false;
+  }
+
+  const btgatt_server_interface_t* hal_iface =
+      hal::BluetoothGattInterface::Get()->GetServerHALInterface();
+  bt_uuid_t app_uuid = uuid.GetBlueDroid();
+
+  if (hal_iface->register_server(&app_uuid) != BT_STATUS_SUCCESS)
+    return false;
+
+  pending_calls_[uuid] = callback;
+
+  return true;
+}
+
+void GattServerFactory::RegisterServerCallback(
+    hal::BluetoothGattInterface* gatt_iface,
+    int status, int server_id,
+    const bt_uuid_t& app_uuid) {
+  UUID uuid(app_uuid);
+
+  VLOG(1) << __func__ << " - UUID: " << uuid.ToString();
+  lock_guard<mutex> lock(pending_calls_lock_);
+
+  auto iter = pending_calls_.find(uuid);
+  if (iter == pending_calls_.end()) {
+    VLOG(1) << "Ignoring callback for unknown app_id: " << uuid.ToString();
+    return;
+  }
+
+  // No need to construct a server if the call wasn't successful.
+  std::unique_ptr<GattServer> server;
+  BLEStatus result = BLE_STATUS_FAILURE;
+  if (status == BT_STATUS_SUCCESS) {
+    server.reset(new GattServer(uuid, server_id));
+
+    gatt_iface->AddServerObserver(server.get());
+
+    result = BLE_STATUS_SUCCESS;
+  }
+
+  // Notify the result via the result callback.
+  iter->second(result, uuid, std::move(server));
+
+  pending_calls_.erase(iter);
+}
+
+}  // namespace bluetooth
diff --git a/rtkbt/code/bt/service/gatt_server.h b/rtkbt/code/bt/service/gatt_server.h
new file mode 100755
index 0000000..3775908
--- /dev/null
+++ b/rtkbt/code/bt/service/gatt_server.h
@@ -0,0 +1,390 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#pragma once
+
+#include <deque>
+#include <functional>
+#include <mutex>
+#include <unordered_map>
+#include <unordered_set>
+#include <vector>
+
+#include <base/macros.h>
+
+#include "service/bluetooth_instance.h"
+#include "service/common/bluetooth/gatt_identifier.h"
+#include "service/common/bluetooth/uuid.h"
+#include "service/hal/bluetooth_gatt_interface.h"
+
+namespace bluetooth {
+
+// A GattServer instance represents an application's handle to perform GATT
+// server-role operations. Instances cannot be created directly and should be
+// obtained through the factory.
+class GattServer : public BluetoothInstance,
+                   private hal::BluetoothGattInterface::ServerObserver {
+ public:
+  // Delegate interface is used to handle incoming requests and confirmations
+  // for a GATT service.
+  class Delegate {
+   public:
+    Delegate() = default;
+    virtual ~Delegate() = default;
+
+    // Called when there is an incoming read request for the characteristic with
+    // ID |characteristic_id| from a remote device with address
+    // |device_address|. |request_id| can be used to respond to this request by
+    // calling SendResponse below.
+    virtual void OnCharacteristicReadRequest(
+        GattServer* gatt_server,
+        const std::string& device_address,
+        int request_id, int offset, bool is_long,
+        const bluetooth::GattIdentifier& characteristic_id) = 0;
+
+    // Called when there is an incoming read request for the descriptor with
+    // ID |descriptor_id| from a remote device with address |device_address|.
+    // |request_id| can be used to respond to this request by
+    // calling SendResponse below.
+    virtual void OnDescriptorReadRequest(
+        GattServer* gatt_server,
+        const std::string& device_address,
+        int request_id, int offset, bool is_long,
+        const bluetooth::GattIdentifier& descriptor_id) = 0;
+
+    // Called when there is an incoming write request for the characteristic
+    // with ID |characteristic_id| from a remote device with address
+    // |device_address|. |request_id| can be used to respond to this request by
+    // calling SendResponse, if the |need_response| parameter is true. Otherwise
+    // this is a "Write Without Reponse" procedure and SendResponse will fail.
+    // If |is_prepare_write| is true, then the write should not be committed
+    // immediately as this is a "Prepared Write Request". Instead, the Delegate
+    // should hold on to the value and either discard it or complete the write
+    // when it receives the OnExecuteWriteRequest event.
+    virtual void OnCharacteristicWriteRequest(
+        GattServer* gatt_server,
+        const std::string& device_address,
+        int request_id, int offset, bool is_prepare_write, bool need_response,
+        const std::vector<uint8_t>& value,
+        const bluetooth::GattIdentifier& characteristic_id) = 0;
+
+    // Called when there is an incoming write request for the descriptor
+    // with ID |descriptor_id| from a remote device with address
+    // |device_address|. |request_id| can be used to respond to this request by
+    // calling SendResponse, if the |need_response| parameter is true. Otherwise
+    // this is a "Write Without Response" procedure and SendResponse will fail.
+    // If |is_prepare_write| is true, then the write should not be committed
+    // immediately as this is a "Prepared Write Request". Instead, the Delegate
+    // should hold on to the value and either discard it or complete the write
+    // when it receives the OnExecuteWriteRequest event.
+    virtual void OnDescriptorWriteRequest(
+        GattServer* gatt_server,
+        const std::string& device_address,
+        int request_id, int offset, bool is_prepare_write, bool need_response,
+        const std::vector<uint8_t>& value,
+        const bluetooth::GattIdentifier& descriptor_id) = 0;
+
+    // Called when there is an incoming "Execute Write Request". If |is_execute|
+    // is true, then the Delegate should commit all previously prepared writes.
+    // Otherwise, all prepared writes should be aborted. The Delegate should
+    // call "SendResponse" to complete the procedure.
+    virtual void OnExecuteWriteRequest(
+        GattServer* gatt_server,
+        const std::string& device_address,
+        int request_id, bool is_execute) = 0;
+
+   private:
+    DISALLOW_COPY_AND_ASSIGN(Delegate);
+  };
+
+  // The desctructor automatically unregisters this instance from the stack.
+  ~GattServer() override;
+
+  // Assigns a delegate to this instance. |delegate| must out-live this
+  // GattServer instance.
+  void SetDelegate(Delegate* delegate);
+
+  // BluetoothClientInstace overrides:
+  const UUID& GetAppIdentifier() const override;
+  int GetInstanceId() const override;
+
+  // Callback type used to report the status of an asynchronous GATT server
+  // operation.
+  using ResultCallback =
+      std::function<void(BLEStatus status, const GattIdentifier& id)>;
+  using GattCallback = std::function<void(GATTError error)>;
+
+  // Starts a new GATT service declaration for the service with the given
+  // parameters. In the case of an error, for example If a service declaration
+  // is already in progress, then this method returns a NULL pointer. Otherwise,
+  // this returns an identifier that uniquely identifies the added service.
+  //
+  // TODO(armansito): In the framework code, the "min_handles" parameter is
+  // annotated to be used for "conformance testing only". I don't fully see the
+  // point of this and suggest getting rid of this parameter entirely. For now
+  // this code doesn't declare or use it.
+  std::unique_ptr<GattIdentifier> BeginServiceDeclaration(
+      const UUID& uuid, bool is_primary);
+
+  // Inserts a new characteristic definition into a previously begun service
+  // declaration. Returns the assigned identifier for the characteristic, or
+  // nullptr if a service declaration wasn't begun or a call to
+  // EndServiceDeclaration is still in progress.
+  std::unique_ptr<GattIdentifier> AddCharacteristic(
+      const UUID& uuid, int properties, int permissions);
+
+  // Inserts a new descriptor definition into a previous begun service
+  // declaration. Returns the assigned identifier for the descriptor, or
+  // nullptr if a service declaration wasn't begun, a call to
+  // EndServiceDeclaration is still in progress, or a characteristic definition
+  // doesn't properly precede this definition.
+  std::unique_ptr<GattIdentifier> AddDescriptor(
+      const UUID& uuid, int permissions);
+
+  // Ends a previously started service declaration. This method immediately
+  // returns false if a service declaration hasn't been started. Otherwise,
+  // |callback| will be called asynchronously with the result of the operation.
+  //
+  // TODO(armansito): It is unclear to me what it means for this function to
+  // fail. What is the state that we're in? Is the service declaration over so
+  // we can add other services to this server instance? Do we need to clean up
+  // all the entries or does the upper-layer need to remove the service? Or are
+  // we in a stuck-state where the service declaration hasn't ended?
+  bool EndServiceDeclaration(const ResultCallback& callback);
+
+  // Sends a response for a pending notification. |request_id| and
+  // |device_address| should match those that were received through one of the
+  // Delegate callbacks. |value| and |offset| are used for read requests and
+  // prepare write requests and should match the value of the attribute. Returns
+  // false if the pending request could not be resolved using the given
+  // parameters or if the call to the underlying stack fails.
+  bool SendResponse(const std::string& device_address, int request_id,
+                    GATTError error, int offset,
+                    const std::vector<uint8_t>& value);
+
+  // Sends an ATT Handle-Value Notification to the device with BD_ADDR
+  // |device_address| for the characteristic with ID |characteristic_id| and
+  // value |value|. If |confirm| is true, then an ATT Handle-Value Indication
+  // will be sent instead, which requires the remote to confirm receipt. Returns
+  // false if there was an immediate error in initiating the notification
+  // procedure. Otherwise, returns true and reports the asynchronous result of
+  // the operation in |callback|.
+  //
+  // If |confirm| is true, then |callback| will be run when the remote device
+  // sends a ATT Handle-Value Confirmation packet. Otherwise, it will be run as
+  // soon as the notification has been sent out.
+  bool SendNotification(const std::string& device_address,
+                        const GattIdentifier& characteristic_id,
+                        bool confirm, const std::vector<uint8_t>& value,
+                        const GattCallback& callback);
+
+ private:
+  friend class GattServerFactory;
+
+  // Internal representation of an attribute entry as part of a service
+  // declaration.
+  struct AttributeEntry {
+    AttributeEntry(const GattIdentifier& id,
+                   int char_properties,
+                   int permissions)
+        : id(id), char_properties(char_properties), permissions(permissions) {}
+
+    GattIdentifier id;
+    int char_properties;
+    int permissions;
+  };
+
+  // Internal representation of a GATT service declaration before it has been
+  // sent to the stack.
+  struct ServiceDeclaration {
+    ServiceDeclaration() : num_handles(0), service_handle(-1) {}
+
+    size_t num_handles;
+    GattIdentifier service_id;
+    int service_handle;
+    std::deque<AttributeEntry> attributes;
+  };
+
+  // Used for the internal remote connection tracking. Keeps track of the
+  // request ID and the device address for the connection. If |request_id| is -1
+  // then no ATT read/write request is currently pending.
+  struct Connection {
+    Connection(int conn_id, const bt_bdaddr_t& bdaddr)
+        : conn_id(conn_id), bdaddr(bdaddr) {}
+    Connection() : conn_id(-1) {
+      memset(&bdaddr, 0, sizeof(bdaddr));
+    }
+
+    int conn_id;
+    std::unordered_map<int, int> request_id_to_handle;
+    bt_bdaddr_t bdaddr;
+  };
+
+  // Used to keep track of a pending Handle-Value indication.
+  struct PendingIndication {
+    PendingIndication(const GattCallback& callback)
+        : has_success(false), callback(callback) {}
+
+    bool has_success;
+    GattCallback callback;
+  };
+
+  // Constructor shouldn't be called directly as instances are meant to be
+  // obtained from the factory.
+  GattServer(const UUID& uuid, int server_id);
+
+  // Returns a GattIdentifier for the attribute with the given UUID within the
+  // current pending service declaration.
+  std::unique_ptr<GattIdentifier> GetIdForService(const UUID& uuid,
+                                                  bool is_primary);
+  std::unique_ptr<GattIdentifier> GetIdForCharacteristic(const UUID& uuid);
+  std::unique_ptr<GattIdentifier> GetIdForDescriptor(const UUID& uuid);
+
+  // hal::BluetoothGattInterface::ServerObserver overrides:
+  void ConnectionCallback(
+      hal::BluetoothGattInterface* gatt_iface,
+      int conn_id, int server_id,
+      int connected,
+      const bt_bdaddr_t& bda) override;
+  void ServiceAddedCallback(
+      hal::BluetoothGattInterface* gatt_iface,
+      int status, int server_id,
+      const btgatt_srvc_id_t& srvc_id,
+      int service_handle) override;
+  void CharacteristicAddedCallback(
+      hal::BluetoothGattInterface* gatt_iface,
+      int status, int server_id,
+      const bt_uuid_t& uuid,
+      int service_handle,
+      int char_handle) override;
+  void DescriptorAddedCallback(
+      hal::BluetoothGattInterface* gatt_iface,
+      int status, int server_id,
+      const bt_uuid_t& uuid,
+      int service_handle,
+      int desc_handle) override;
+  void ServiceStartedCallback(
+      hal::BluetoothGattInterface* gatt_iface,
+      int status, int server_id,
+      int service_handle) override;
+  void ServiceStoppedCallback(
+      hal::BluetoothGattInterface* gatt_iface,
+      int status, int server_id,
+      int service_handle) override;
+  void RequestReadCallback(
+      hal::BluetoothGattInterface* gatt_iface,
+      int conn_id, int trans_id,
+      const bt_bdaddr_t& bda,
+      int attribute_handle, int offset,
+      bool is_long) override;
+  void RequestWriteCallback(
+      hal::BluetoothGattInterface* gatt_iface,
+      int conn_id, int trans_id,
+      const bt_bdaddr_t& bda,
+      int attr_handle, int offset, int length,
+      bool need_rsp, bool is_prep, uint8_t* value) override;
+  void RequestExecWriteCallback(
+      hal::BluetoothGattInterface* gatt_iface,
+      int conn_id, int trans_id,
+      const bt_bdaddr_t& bda, int exec_write) override;
+  void IndicationSentCallback(
+      hal::BluetoothGattInterface* gatt_iface,
+      int conn_id, int status) override;
+
+  // Helper function that notifies and clears the pending callback.
+  void NotifyEndCallbackAndClearData(BLEStatus status,
+                                     const GattIdentifier& id);
+  void CleanUpPendingData();
+
+  // Handles the next attribute entry in the pending service declaration.
+  void HandleNextEntry(hal::BluetoothGattInterface* gatt_iface);
+
+  // Helper method that returns a pointer to an internal Connection instance
+  // that matches the given parameters.
+  std::shared_ptr<Connection> GetConnection(int conn_id, const bt_bdaddr_t& bda,
+                                            int request_id);
+
+  // Pops the next GATT ID or entry from the pending service declaration's
+  // attribute list.
+  std::unique_ptr<AttributeEntry> PopNextEntry();
+  std::unique_ptr<GattIdentifier> PopNextId();
+
+  // See getters for documentation.
+  UUID app_identifier_;
+  int server_id_;
+
+  // Mutex that synchronizes access to the entries below.
+  std::mutex mutex_;
+  std::unique_ptr<GattIdentifier> pending_id_;
+  std::unique_ptr<ServiceDeclaration> pending_decl_;
+  ResultCallback pending_end_decl_cb_;
+  std::unordered_map<GattIdentifier, int> pending_handle_map_;
+
+  // Mapping of handles and GATT identifiers for started services.
+  std::unordered_map<GattIdentifier, int> id_to_handle_map_;
+  std::unordered_map<int, GattIdentifier> handle_to_id_map_;
+
+  // GATT connection mappings from stack-provided "conn_id" IDs and remote
+  // device addresses to Connection structures. The conn_id map is one-to-one
+  // while the conn_addr map is one to many, as a remote device may support
+  // multiple transports (BR/EDR & LE) and use the same device address for both.
+  std::unordered_map<int, std::shared_ptr<Connection>> conn_id_map_;
+  std::unordered_map<std::string, std::vector<std::shared_ptr<Connection>>>
+      conn_addr_map_;
+
+  // Connections for which a Handle-Value indication is pending. Since there can
+  // be multiple indications to the same device (in the case of a dual-mode
+  // device with simulatenous BR/EDR & LE GATT connections), we also keep track
+  // of whether there has been at least one successful confirmation.
+  std::unordered_map<int, std::shared_ptr<PendingIndication>>
+      pending_indications_;
+
+  // Raw handle to the Delegate, which must outlive this GattServer instance.
+  Delegate* delegate_;
+
+  DISALLOW_COPY_AND_ASSIGN(GattServer);
+};
+
+// GattServerFactory is used to register and obtain a per-application GattServer
+// instance. Users should call RegisterClient to obtain their own unique
+// GattServer instance that has been registered with the Bluetooth stack.
+class GattServerFactory : public BluetoothInstanceFactory,
+                          private hal::BluetoothGattInterface::ServerObserver {
+ public:
+  // Don't construct/destruct directly except in tests. Instead, obtain a handle
+  // from an Adapter instance.
+  GattServerFactory();
+  ~GattServerFactory() override;
+
+  // BluetoothInstanceFactory override:
+  bool RegisterInstance(const UUID& uuid,
+                        const RegisterCallback& callback) override;
+
+ private:
+  // hal::BluetoothGattInterface::ServerObserver override:
+  void RegisterServerCallback(
+      hal::BluetoothGattInterface* gatt_iface,
+      int status, int server_id,
+      const bt_uuid_t& app_uuid) override;
+
+  // Map of pending calls to register.
+  std::mutex pending_calls_lock_;
+  std::unordered_map<UUID, RegisterCallback> pending_calls_;
+
+  DISALLOW_COPY_AND_ASSIGN(GattServerFactory);
+};
+
+}  // namespace bluetooth
diff --git a/rtkbt/code/bt/service/gatt_server_old.cpp b/rtkbt/code/bt/service/gatt_server_old.cpp
new file mode 100755
index 0000000..f775be9
--- /dev/null
+++ b/rtkbt/code/bt/service/gatt_server_old.cpp
@@ -0,0 +1,780 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#define LOG_TAG "bt_gatts"
+
+#include "gatt_server_old.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include <algorithm>
+#include <array>
+#include <condition_variable>
+#include <map>
+#include <memory>
+#include <mutex>
+#include <set>
+#include <string>
+#include <unordered_map>
+#include <vector>
+
+#include <hardware/bluetooth.h>
+#include <hardware/bt_gatt.h>
+
+#include "service/hal/bluetooth_interface.h"
+#include "service/logging_helpers.h"
+
+extern "C" {
+#include "osi/include/log.h"
+#include "osi/include/osi.h"
+}  // extern "C"
+
+namespace {
+
+const size_t kMaxGattAttributeSize = 512;
+// TODO(icoolidge): Difficult to generalize without knowing how many attributes.
+const int kNumBlueDroidHandles = 60;
+
+// TODO(icoolidge): Support multiple instances
+// TODO(armansito): Remove this variable. No point of having this if
+// each bluetooth::gatt::Server instance already keeps a pointer to the
+// ServerInternals that is associated with it (which is much cleaner). It looks
+// like this variable exists because the btif callbacks don't allow the
+// upper-layer to pass user data to them. We could:
+//
+//    1. Fix the btif callbacks so that some sort of continuation can be
+//    attached to a callback. This might be a long shot since the callback
+//    interface doesn't allow more than one caller to register its own callbacks
+//    (which might be what we want though, since this would make the API more
+//    flexible).
+//
+//    2. Allow creation of Server objects using a factory method that returns
+//    the result asynchronously in a base::Callback. The RegisterServerCallback
+//    provides an |app_uuid|, which can be used to store callback structures in
+//    a map and lazily instantiate the Server and invoke the correct callback.
+//    This is a general pattern that we should use throughout the daemon, since
+//    all operations can timeout or fail and this is best reported in an
+//    asynchronous base::Callback.
+//
+static bluetooth::gatt::ServerInternals *g_internal = nullptr;
+
+enum { kPipeReadEnd = 0, kPipeWriteEnd = 1, kPipeNumEnds = 2 };
+
+}  // namespace
+
+namespace bluetooth {
+namespace gatt {
+
+struct Characteristic {
+  UUID uuid;
+  int blob_section;
+  std::vector<uint8_t> blob;
+
+  // Support synchronized blob updates by latching under mutex.
+  std::vector<uint8_t> next_blob;
+  bool next_blob_pending;
+  bool notify;
+};
+
+struct ServerInternals {
+  ServerInternals();
+  ~ServerInternals();
+  int Initialize();
+  bt_status_t AddCharacteristic(
+      const UUID& uuid,
+      int properties,
+      int permissions);
+
+  // This maps API attribute UUIDs to BlueDroid handles.
+  std::map<UUID, int> uuid_to_attribute;
+
+  // The attribute cache, indexed by BlueDroid handles.
+  std::unordered_map<int, Characteristic> characteristics;
+
+  // Associate a control attribute with its value attribute.
+  std::unordered_map<int, int> controlled_blobs;
+
+  ScanResults scan_results;
+
+  UUID last_write;
+  const btgatt_interface_t *gatt;
+  int server_if;
+  int client_if;
+  int service_handle;
+  btgatt_srvc_id_t service_id;
+  std::set<int> connections;
+
+  std::mutex lock;
+  std::condition_variable api_synchronize;
+  int pipefd[kPipeNumEnds];
+};
+
+}  // namespace gatt
+}  // namespace bluetooth
+
+namespace {
+
+/** Callback invoked in response to register_server */
+void RegisterServerCallback(int status, int server_if, bt_uuid_t *app_uuid) {
+  LOG_INFO(LOG_TAG, "%s: status:%d server_if:%d app_uuid:%p", __func__, status,
+           server_if, app_uuid);
+
+  g_internal->server_if = server_if;
+
+  btgatt_srvc_id_t service_id;
+  service_id.id.uuid = *app_uuid;
+  service_id.id.inst_id = 0;
+  service_id.is_primary = true;
+
+  g_internal->gatt->server->add_service(
+      server_if, &service_id, kNumBlueDroidHandles);
+}
+
+void ServiceAddedCallback(int status, int server_if, btgatt_srvc_id_t *srvc_id,
+                          int srvc_handle) {
+  LOG_INFO(LOG_TAG, "%s: status:%d server_if:%d gatt_srvc_id:%u srvc_handle:%d",
+           __func__, status, server_if, srvc_id->id.inst_id, srvc_handle);
+
+  std::lock_guard<std::mutex> lock(g_internal->lock);
+  g_internal->server_if = server_if;
+  g_internal->service_handle = srvc_handle;
+  g_internal->service_id = *srvc_id;
+  // This finishes the Initialize call.
+  g_internal->api_synchronize.notify_one();
+}
+
+void RequestReadCallback(int conn_id, int trans_id, bt_bdaddr_t *bda,
+                         int attr_handle, int attribute_offset_octets,
+                         bool is_long) {
+  std::lock_guard<std::mutex> lock(g_internal->lock);
+
+  bluetooth::gatt::Characteristic &ch = g_internal->characteristics[attr_handle];
+
+  // Latch next_blob to blob on a 'fresh' read.
+  if (ch.next_blob_pending && attribute_offset_octets == 0 &&
+      ch.blob_section == 0) {
+    std::swap(ch.blob, ch.next_blob);
+    ch.next_blob_pending = false;
+  }
+
+  const size_t blob_offset_octets =
+      std::min(ch.blob.size(), ch.blob_section * kMaxGattAttributeSize);
+  const size_t blob_remaining = ch.blob.size() - blob_offset_octets;
+  const size_t attribute_size = std::min(kMaxGattAttributeSize, blob_remaining);
+
+  std::string addr(BtAddrString(bda));
+  LOG_INFO(LOG_TAG,
+      "%s: connection:%d (%s) reading attr:%d attribute_offset_octets:%d "
+      "blob_section:%u (is_long:%u)",
+      __func__, conn_id, addr.c_str(), attr_handle, attribute_offset_octets,
+      ch.blob_section, is_long);
+
+  btgatt_response_t response;
+  response.attr_value.len = 0;
+
+  if (attribute_offset_octets < static_cast<int>(attribute_size)) {
+    std::copy(ch.blob.begin() + blob_offset_octets + attribute_offset_octets,
+              ch.blob.begin() + blob_offset_octets + attribute_size,
+              response.attr_value.value);
+    response.attr_value.len = attribute_size - attribute_offset_octets;
+  }
+
+  response.attr_value.handle = attr_handle;
+  response.attr_value.offset = attribute_offset_octets;
+  response.attr_value.auth_req = 0;
+  g_internal->gatt->server->send_response(conn_id, trans_id, 0, &response);
+}
+
+void RequestWriteCallback(int conn_id, int trans_id, bt_bdaddr_t *bda,
+                          int attr_handle, int attribute_offset, int length,
+                          bool need_rsp, bool is_prep, uint8_t *value) {
+  std::string addr(BtAddrString(bda));
+  LOG_INFO(LOG_TAG,
+      "%s: connection:%d (%s:trans:%d) write attr:%d attribute_offset:%d "
+      "length:%d "
+      "need_resp:%u is_prep:%u",
+      __func__, conn_id, addr.c_str(), trans_id, attr_handle, attribute_offset,
+      length, need_rsp, is_prep);
+
+  std::lock_guard<std::mutex> lock(g_internal->lock);
+
+  bluetooth::gatt::Characteristic &ch =
+      g_internal->characteristics[attr_handle];
+
+  ch.blob.resize(attribute_offset + length);
+
+  std::copy(value, value + length, ch.blob.begin() + attribute_offset);
+
+  auto target_blob = g_internal->controlled_blobs.find(attr_handle);
+  // If this is a control attribute, adjust offset of the target blob.
+  if (target_blob != g_internal->controlled_blobs.end() &&
+      ch.blob.size() == 1u) {
+    g_internal->characteristics[target_blob->second].blob_section = ch.blob[0];
+    LOG_INFO(LOG_TAG, "%s: updating attribute %d blob_section to %u", __func__,
+        target_blob->second, ch.blob[0]);
+  } else if (!is_prep) {
+    // This is a single frame characteristic write.
+    // Notify upwards because we're done now.
+    const bluetooth::UUID::UUID128Bit &attr_uuid = ch.uuid.GetFullBigEndian();
+    ssize_t status;
+    OSI_NO_INTR(status = write(g_internal->pipefd[kPipeWriteEnd],
+                               attr_uuid.data(), attr_uuid.size()));
+    if (-1 == status)
+      LOG_ERROR(LOG_TAG, "%s: write failed: %s", __func__, strerror(errno));
+  } else {
+    // This is a multi-frame characteristic write.
+    // Wait for an 'RequestExecWriteCallback' to notify completion.
+    g_internal->last_write = ch.uuid;
+  }
+
+  // Respond only if needed.
+  if (!need_rsp) return;
+
+  btgatt_response_t response;
+  response.attr_value.handle = attr_handle;
+  response.attr_value.offset = attribute_offset;
+  response.attr_value.len = length;
+  response.attr_value.auth_req = 0;
+  // Provide written data back to sender for the response.
+  // Remote stacks use this to validate the success of the write.
+  std::copy(value, value + length, response.attr_value.value);
+  g_internal->gatt->server->send_response(conn_id, trans_id, 0, &response);
+}
+
+void RequestExecWriteCallback(int conn_id, int trans_id, bt_bdaddr_t *bda,
+                              int exec_write) {
+  std::string addr(BtAddrString(bda));
+  LOG_INFO(LOG_TAG, "%s: connection:%d (%s:trans:%d) exec_write:%d", __func__,
+      conn_id, addr.c_str(), trans_id, exec_write);
+
+  // This 'response' data is unused for ExecWriteResponses.
+  // It is only used to pass BlueDroid argument validation.
+  btgatt_response_t response = {};
+  g_internal->gatt->server->send_response(conn_id, trans_id, 0, &response);
+
+  if (!exec_write)
+    return;
+
+  std::lock_guard<std::mutex> lock(g_internal->lock);
+  // Communicate the attribute UUID as notification of a write update.
+  const bluetooth::UUID::UUID128Bit uuid =
+      g_internal->last_write.GetFullBigEndian();
+  ssize_t status;
+  OSI_NO_INTR(status = write(g_internal->pipefd[kPipeWriteEnd], uuid.data(),
+                             uuid.size()));
+  if (-1 == status)
+    LOG_ERROR(LOG_TAG, "%s: write failed: %s", __func__, strerror(errno));
+}
+
+void ConnectionCallback(int conn_id, int server_if, int connected,
+                        bt_bdaddr_t *bda) {
+  std::string addr(BtAddrString(bda));
+  LOG_INFO(LOG_TAG, "%s: connection:%d server_if:%d connected:%d addr:%s",
+      __func__, conn_id, server_if, connected, addr.c_str());
+  if (connected == 1) {
+    g_internal->connections.insert(conn_id);
+  } else if (connected == 0) {
+    g_internal->connections.erase(conn_id);
+  }
+}
+
+void CharacteristicAddedCallback(int status, int server_if, bt_uuid_t *uuid,
+                                 int srvc_handle, int char_handle) {
+  LOG_INFO(LOG_TAG,
+      "%s: status:%d server_if:%d service_handle:%d char_handle:%d", __func__,
+      status, server_if, srvc_handle, char_handle);
+
+  bluetooth::UUID id(*uuid);
+
+  std::lock_guard<std::mutex> lock(g_internal->lock);
+
+  g_internal->uuid_to_attribute[id] = char_handle;
+  g_internal->characteristics[char_handle].uuid = id;
+  g_internal->characteristics[char_handle].blob_section = 0;
+
+  // This terminates an AddCharacteristic.
+  g_internal->api_synchronize.notify_one();
+}
+
+void DescriptorAddedCallback(int status, int server_if, bt_uuid_t *uuid,
+                             int srvc_handle, int descr_handle) {
+  LOG_INFO(LOG_TAG,
+      "%s: status:%d server_if:%d service_handle:%d uuid[0]:%u "
+      "descr_handle:%d",
+      __func__, status, server_if, srvc_handle, uuid->uu[0], descr_handle);
+}
+
+void ServiceStartedCallback(int status, int server_if, int srvc_handle) {
+  LOG_INFO(LOG_TAG, "%s: status:%d server_if:%d srvc_handle:%d", __func__,
+      status, server_if, srvc_handle);
+
+  // The UUID provided here is unimportant, and is only used to satisfy
+  // BlueDroid.
+  // It must be different than any other registered UUID.
+  bt_uuid_t client_id = g_internal->service_id.id.uuid;
+  ++client_id.uu[15];
+
+  bt_status_t btstat = g_internal->gatt->client->register_client(&client_id);
+  if (btstat != BT_STATUS_SUCCESS) {
+    LOG_ERROR(LOG_TAG, "%s: Failed to register client", __func__);
+  }
+}
+
+void RegisterClientCallback(int status, int client_if, bt_uuid_t *app_uuid) {
+  LOG_INFO(LOG_TAG, "%s: status:%d client_if:%d uuid[0]:%u", __func__, status,
+      client_if, app_uuid->uu[0]);
+  g_internal->client_if = client_if;
+
+  // Setup our advertisement. This has no callback.
+  bt_status_t btstat = g_internal->gatt->client->set_adv_data(
+      client_if, false, /* beacon, not scan response */
+      false,            /* name */
+      false,            /* no txpower */
+      2, 2,             /* interval */
+      0,                /* appearance */
+      0, nullptr,       /* no mfg data */
+      0, nullptr,       /* no service data */
+      0, nullptr /* no service id yet */);
+  if (btstat != BT_STATUS_SUCCESS) {
+    LOG_ERROR(LOG_TAG, "Failed to set advertising data");
+    return;
+  }
+
+  // TODO(icoolidge): Deprecated, use multi-adv interface.
+  // This calls back to ListenCallback.
+  btstat = g_internal->gatt->client->listen(client_if, true);
+  if (btstat != BT_STATUS_SUCCESS) {
+    LOG_ERROR(LOG_TAG, "Failed to start listening");
+  }
+}
+
+void ListenCallback(int status, int client_if) {
+  LOG_INFO(LOG_TAG, "%s: status:%d client_if:%d", __func__, status, client_if);
+  // This terminates a Start call.
+  std::lock_guard<std::mutex> lock(g_internal->lock);
+  g_internal->api_synchronize.notify_one();
+}
+
+void ServiceStoppedCallback(int status, int server_if, int srvc_handle) {
+  LOG_INFO(LOG_TAG, "%s: status:%d server_if:%d srvc_handle:%d", __func__,
+      status, server_if, srvc_handle);
+  // This terminates a Stop call.
+  // TODO(icoolidge): make this symmetric with start
+  std::lock_guard<std::mutex> lock(g_internal->lock);
+  g_internal->api_synchronize.notify_one();
+}
+
+void ScanResultCallback(bt_bdaddr_t *bda, int rssi, uint8_t *adv_data) {
+  std::string addr(BtAddrString(bda));
+  (void)adv_data;
+  std::lock_guard<std::mutex> lock(g_internal->lock);
+  g_internal->scan_results[addr] = rssi;
+}
+
+void ClientConnectCallback(int conn_id, int status, int client_if,
+                           bt_bdaddr_t *bda) {
+  std::string addr(BtAddrString(bda));
+  LOG_INFO(LOG_TAG, "%s: conn_id:%d status:%d client_if:%d %s", __func__,
+      conn_id, status, client_if, addr.c_str());
+}
+
+void ClientDisconnectCallback(int conn_id, int status, int client_if,
+                              bt_bdaddr_t *bda) {
+  std::string addr(BtAddrString(bda));
+  LOG_INFO(LOG_TAG, "%s: conn_id:%d status:%d client_if:%d %s", __func__,
+      conn_id, status, client_if, addr.c_str());
+}
+
+void IndicationSentCallback(UNUSED_ATTR int conn_id,
+                            UNUSED_ATTR int status) {
+  // TODO(icoolidge): what to do
+}
+
+void ResponseConfirmationCallback(UNUSED_ATTR int status,
+                                  UNUSED_ATTR int handle) {
+  // TODO(icoolidge): what to do
+}
+
+const btgatt_server_callbacks_t gatt_server_callbacks = {
+    RegisterServerCallback,
+    ConnectionCallback,
+    ServiceAddedCallback,
+    nullptr, /* included_service_added_cb */
+    CharacteristicAddedCallback,
+    DescriptorAddedCallback,
+    ServiceStartedCallback,
+    ServiceStoppedCallback,
+    nullptr, /* service_deleted_cb */
+    RequestReadCallback,
+    RequestWriteCallback,
+    RequestExecWriteCallback,
+    ResponseConfirmationCallback,
+    IndicationSentCallback,
+    nullptr, /* congestion_cb*/
+    nullptr, /* mtu_changed_cb */
+};
+
+// TODO(eisenbach): Refactor GATT interface to not require servers
+// to refer to the client interface.
+const btgatt_client_callbacks_t gatt_client_callbacks = {
+    RegisterClientCallback,
+    ScanResultCallback,
+    ClientConnectCallback,
+    ClientDisconnectCallback,
+    nullptr, /* search_complete_cb; */
+    nullptr, /* register_for_notification_cb; */
+    nullptr, /* notify_cb; */
+    nullptr, /* read_characteristic_cb; */
+    nullptr, /* write_characteristic_cb; */
+    nullptr, /* read_descriptor_cb; */
+    nullptr, /* write_descriptor_cb; */
+    nullptr, /* execute_write_cb; */
+    nullptr, /* read_remote_rssi_cb; */
+    ListenCallback,
+    nullptr, /* configure_mtu_cb; */
+    nullptr, /* scan_filter_cfg_cb; */
+    nullptr, /* scan_filter_param_cb; */
+    nullptr, /* scan_filter_status_cb; */
+    nullptr, /* multi_adv_enable_cb */
+    nullptr, /* multi_adv_update_cb; */
+    nullptr, /* multi_adv_data_cb*/
+    nullptr, /* multi_adv_disable_cb; */
+    nullptr, /* congestion_cb; */
+    nullptr, /* batchscan_cfg_storage_cb; */
+    nullptr, /* batchscan_enb_disable_cb; */
+    nullptr, /* batchscan_reports_cb; */
+    nullptr, /* batchscan_threshold_cb; */
+    nullptr, /* track_adv_event_cb; */
+    nullptr, /* scan_parameter_setup_completed_cb; */
+    nullptr, /* get_gatt_db_cb; */
+    nullptr, /* services_removed_cb */
+    nullptr, /* services_added_cb */
+};
+
+const btgatt_callbacks_t gatt_callbacks = {
+    /** Set to sizeof(btgatt_callbacks_t) */
+    sizeof(btgatt_callbacks_t),
+
+    /** GATT Client callbacks */
+    &gatt_client_callbacks,
+
+    /** GATT Server callbacks */
+    &gatt_server_callbacks};
+
+}  // namespace
+
+namespace bluetooth {
+namespace gatt {
+
+int ServerInternals::Initialize() {
+  // Get the interface to the GATT profile.
+  const bt_interface_t* bt_iface =
+      hal::BluetoothInterface::Get()->GetHALInterface();
+  gatt = reinterpret_cast<const btgatt_interface_t *>(
+      bt_iface->get_profile_interface(BT_PROFILE_GATT_ID));
+  if (!gatt) {
+    LOG_ERROR(LOG_TAG, "Error getting GATT interface");
+    return -1;
+  }
+
+  bt_status_t btstat = gatt->init(&gatt_callbacks);
+  if (btstat != BT_STATUS_SUCCESS) {
+    LOG_ERROR(LOG_TAG, "Failed to initialize gatt interface");
+    return -1;
+  }
+
+  int status = pipe(pipefd);
+  if (status == -1) {
+    LOG_ERROR(LOG_TAG, "pipe creation failed: %s", strerror(errno));
+    return -1;
+  }
+
+  return 0;
+}
+
+bt_status_t ServerInternals::AddCharacteristic(
+    const UUID& uuid,
+    int properties,
+    int permissions) {
+  bt_uuid_t c_uuid = uuid.GetBlueDroid();
+  return gatt->server->add_characteristic(
+      server_if, service_handle, &c_uuid, properties, permissions);
+}
+
+ServerInternals::ServerInternals()
+    : gatt(nullptr),
+      server_if(0),
+      client_if(0),
+      service_handle(0),
+      pipefd{INVALID_FD, INVALID_FD} {}
+
+ServerInternals::~ServerInternals() {
+  if (pipefd[0] != INVALID_FD)
+    close(pipefd[0]);
+  if (pipefd[1] != INVALID_FD)
+    close(pipefd[1]);
+
+  gatt->server->delete_service(server_if, service_handle);
+  gatt->server->unregister_server(server_if);
+  gatt->client->unregister_client(client_if);
+}
+
+Server::Server() : internal_(nullptr) {}
+
+Server::~Server() {}
+
+bool Server::Initialize(const UUID& service_id, int* gatt_pipe) {
+  internal_.reset(new ServerInternals);
+  if (!internal_) {
+    LOG_ERROR(LOG_TAG, "Error creating internals");
+    return false;
+  }
+  g_internal = internal_.get();
+
+  std::unique_lock<std::mutex> lock(internal_->lock);
+  int status = internal_->Initialize();
+  if (status) {
+    LOG_ERROR(LOG_TAG, "Error initializing internals");
+    return false;
+  }
+
+  bt_uuid_t uuid = service_id.GetBlueDroid();
+
+  bt_status_t btstat = internal_->gatt->server->register_server(&uuid);
+  if (btstat != BT_STATUS_SUCCESS) {
+    LOG_ERROR(LOG_TAG, "Failed to register server");
+    return false;
+  }
+
+  internal_->api_synchronize.wait(lock);
+  // TODO(icoolidge): Better error handling.
+  if (internal_->server_if == 0) {
+    LOG_ERROR(LOG_TAG, "Initialization of server failed");
+    return false;
+  }
+
+  *gatt_pipe = internal_->pipefd[kPipeReadEnd];
+  LOG_INFO(LOG_TAG, "Server Initialize succeeded");
+  return true;
+}
+
+bool Server::SetAdvertisement(const std::vector<UUID>& ids,
+                              const std::vector<uint8_t>& service_data,
+                              const std::vector<uint8_t>& manufacturer_data,
+                              bool transmit_name) {
+  std::vector<uint8_t> id_data;
+  auto mutable_manufacturer_data = manufacturer_data;
+  auto mutable_service_data = service_data;
+
+  for (const UUID &id : ids) {
+    const auto le_id = id.GetFullLittleEndian();
+    id_data.insert(id_data.end(), le_id.begin(), le_id.end());
+  }
+
+  std::lock_guard<std::mutex> lock(internal_->lock);
+
+  // Setup our advertisement. This has no callback.
+  bt_status_t btstat = internal_->gatt->client->set_adv_data(
+      internal_->client_if, false, /* beacon, not scan response */
+      transmit_name,               /* name */
+      false,                       /* no txpower */
+      2, 2,                        /* interval */
+      0,                           /* appearance */
+      mutable_manufacturer_data.size(),
+      reinterpret_cast<char *>(mutable_manufacturer_data.data()),
+      mutable_service_data.size(),
+      reinterpret_cast<char *>(mutable_service_data.data()), id_data.size(),
+      reinterpret_cast<char *>(id_data.data()));
+  if (btstat != BT_STATUS_SUCCESS) {
+    LOG_ERROR(LOG_TAG, "Failed to set advertising data");
+    return false;
+  }
+  return true;
+}
+
+bool Server::SetScanResponse(const std::vector<UUID>& ids,
+                             const std::vector<uint8_t>& service_data,
+                             const std::vector<uint8_t>& manufacturer_data,
+                             bool transmit_name) {
+  std::vector<uint8_t> id_data;
+  auto mutable_manufacturer_data = manufacturer_data;
+  auto mutable_service_data = service_data;
+
+  for (const UUID &id : ids) {
+    const auto le_id = id.GetFullLittleEndian();
+    id_data.insert(id_data.end(), le_id.begin(), le_id.end());
+  }
+
+  std::lock_guard<std::mutex> lock(internal_->lock);
+
+  // Setup our advertisement. This has no callback.
+  bt_status_t btstat = internal_->gatt->client->set_adv_data(
+      internal_->client_if, true, /* scan response */
+      transmit_name,              /* name */
+      false,                      /* no txpower */
+      2, 2,                       /* interval */
+      0,                          /* appearance */
+      mutable_manufacturer_data.size(),
+      reinterpret_cast<char *>(mutable_manufacturer_data.data()),
+      mutable_service_data.size(),
+      reinterpret_cast<char *>(mutable_service_data.data()), id_data.size(),
+      reinterpret_cast<char *>(id_data.data()));
+  if (btstat != BT_STATUS_SUCCESS) {
+    LOG_ERROR(LOG_TAG, "Failed to set scan response data");
+    return false;
+  }
+  return true;
+}
+
+bool Server::AddCharacteristic(
+    const UUID &id, int properties, int permissions) {
+  std::unique_lock<std::mutex> lock(internal_->lock);
+  bt_status_t btstat = internal_->AddCharacteristic(
+      id, properties, permissions);
+  if (btstat != BT_STATUS_SUCCESS) {
+    LOG_ERROR(LOG_TAG, "Failed to add characteristic to service: 0x%04x",
+              internal_->service_handle);
+    return false;
+  }
+  internal_->api_synchronize.wait(lock);
+  const int handle = internal_->uuid_to_attribute[id];
+  internal_->characteristics[handle].notify = properties & kPropertyNotify;
+  return true;
+}
+
+bool Server::AddBlob(const UUID &id, const UUID &control_id, int properties,
+                    int permissions) {
+  std::unique_lock<std::mutex> lock(internal_->lock);
+
+  // First, add the primary attribute (characteristic value)
+  bt_status_t btstat = internal_->AddCharacteristic(
+      id, properties, permissions);
+  if (btstat != BT_STATUS_SUCCESS) {
+    LOG_ERROR(LOG_TAG, "Failed to set scan response data");
+    return false;
+  }
+
+  internal_->api_synchronize.wait(lock);
+
+  // Next, add the secondary attribute (blob control).
+  // Control attributes have fixed permissions/properties.
+  btstat = internal_->AddCharacteristic(
+      control_id,
+      kPropertyRead | kPropertyWrite,
+      kPermissionRead | kPermissionWrite);
+  internal_->api_synchronize.wait(lock);
+
+  // Finally, associate the control attribute with the value attribute.
+  // Also, initialize the control attribute to a readable zero.
+  const int control_attribute = internal_->uuid_to_attribute[control_id];
+  const int blob_attribute = internal_->uuid_to_attribute[id];
+  internal_->controlled_blobs[control_attribute] = blob_attribute;
+  internal_->characteristics[blob_attribute].notify =
+      properties & kPropertyNotify;
+
+  Characteristic &ctrl = internal_->characteristics[control_attribute];
+  ctrl.next_blob.clear();
+  ctrl.next_blob.push_back(0);
+  ctrl.next_blob_pending = true;
+  ctrl.blob_section = 0;
+  ctrl.notify = false;
+  return true;
+}
+
+bool Server::Start() {
+  std::unique_lock<std::mutex> lock(internal_->lock);
+  bt_status_t btstat = internal_->gatt->server->start_service(
+      internal_->server_if, internal_->service_handle, GATT_TRANSPORT_LE);
+  if (btstat != BT_STATUS_SUCCESS) {
+    LOG_ERROR(LOG_TAG, "Failed to start service with handle: 0x%04x",
+              internal_->service_handle);
+    return false;
+  }
+  internal_->api_synchronize.wait(lock);
+  return true;
+}
+
+bool Server::Stop() {
+  std::unique_lock<std::mutex> lock(internal_->lock);
+  bt_status_t btstat = internal_->gatt->server->stop_service(
+      internal_->server_if, internal_->service_handle);
+  if (btstat != BT_STATUS_SUCCESS) {
+    LOG_ERROR(LOG_TAG, "Failed to stop service with handle: 0x%04x",
+              internal_->service_handle);
+    return false;
+  }
+  internal_->api_synchronize.wait(lock);
+  return true;
+}
+
+bool Server::ScanEnable() {
+  bt_status_t btstat = internal_->gatt->client->scan(true);
+  if (btstat) {
+    LOG_ERROR(LOG_TAG, "Enable scan failed: %d", btstat);
+    return false;
+  }
+  return true;
+}
+
+bool Server::ScanDisable() {
+  bt_status_t btstat = internal_->gatt->client->scan(false);
+  if (btstat) {
+    LOG_ERROR(LOG_TAG, "Disable scan failed: %d", btstat);
+    return false;
+  }
+  return true;
+}
+
+bool Server::GetScanResults(ScanResults *results) {
+  std::lock_guard<std::mutex> lock(internal_->lock);
+  *results = internal_->scan_results;
+  return true;
+}
+
+bool Server::SetCharacteristicValue(const UUID &id,
+                              const std::vector<uint8_t> &value) {
+  std::lock_guard<std::mutex> lock(internal_->lock);
+  const int attribute_id = internal_->uuid_to_attribute[id];
+  Characteristic &ch = internal_->characteristics[attribute_id];
+  ch.next_blob = value;
+  ch.next_blob_pending = true;
+
+  if (!ch.notify)
+    return true;
+
+  for (auto connection : internal_->connections) {
+    char dummy = 0;
+    internal_->gatt->server->send_indication(internal_->server_if,
+                                             attribute_id,
+                                             connection,
+                                             sizeof(dummy),
+                                             true,
+                                             &dummy);
+  }
+  return true;
+}
+
+bool Server::GetCharacteristicValue(const UUID &id, std::vector<uint8_t> *value) {
+  std::lock_guard<std::mutex> lock(internal_->lock);
+  const int attribute_id = internal_->uuid_to_attribute[id];
+  *value = internal_->characteristics[attribute_id].blob;
+  return true;
+}
+
+}  // namespace gatt
+}  // namespace bluetooth
diff --git a/rtkbt/code/bt/service/gatt_server_old.h b/rtkbt/code/bt/service/gatt_server_old.h
new file mode 100755
index 0000000..84ceb26
--- /dev/null
+++ b/rtkbt/code/bt/service/gatt_server_old.h
@@ -0,0 +1,125 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+#pragma once
+
+#include <array>
+#include <memory>
+#include <unordered_map>
+#include <vector>
+
+#include "hardware/bluetooth.h"
+#include "hardware/bt_gatt.h"
+#include "service/common/bluetooth/uuid.h"
+
+namespace bluetooth {
+namespace gatt {
+
+// Attribute permission values
+const int kPermissionRead = 0x1;
+const int kPermissionReadEncrypted = 0x2;
+const int kPermissionReadEncryptedMitm = 0x4;
+const int kPermissionWrite = 0x10;
+const int kPermissionWriteEnecrypted = 0x20;
+const int KPermissionWriteEncryptedMitm = 0x40;
+const int kPermissionWriteSigned = 0x80;
+const int kPermissionWriteSignedMitm = 0x100;
+
+// GATT characteristic properties bit-field values
+const int kPropertyBroadcast = 0x1;
+const int kPropertyRead = 0x2;
+const int kPropertyWriteNoResponse = 0x4;
+const int kPropertyWrite = 0x8;
+const int kPropertyNotify = 0x10;
+const int kPropertyIndicate = 0x20;
+const int kPropertySignedWrite = 0x40;
+const int kPropertyExtendedProps = 0x80;
+
+// A mapping from string bluetooth addresses to RSSI measurements.
+typedef std::unordered_map<std::string, int> ScanResults;
+
+// TODO(armansito): This should be a private internal class though I don't see
+// why we even need this class. Instead it should probably be merged into
+// Server.
+struct ServerInternals;
+
+// Server is threadsafe and internally locked.
+// Asynchronous IO is identified via a gatt_pipe FD,
+// and synchronously read with 'GetCharacteristicValue'
+//
+// ****DEPRECATED****
+//
+// TODO(armansito): This class has been deprecated and is being replaced by
+// bluetooth::GattServer. We will remove this entirely once the new code is
+// ready.
+class Server {
+ public:
+  Server();
+  ~Server();
+
+  // Register GATT interface, initialize internal state,
+  // and open a pipe for characteristic write notification.
+  bool Initialize(const UUID& service_id, int* gatt_pipe);
+
+  // Control the content of service advertisement.
+  bool SetAdvertisement(const std::vector<UUID>& ids,
+                        const std::vector<uint8_t>& service_data,
+                        const std::vector<uint8_t>& manufacturer_data,
+                        bool transmit_name);
+
+  // Control the content of service scan response.
+  bool SetScanResponse(const std::vector<UUID>& ids,
+                       const std::vector<uint8_t>& service_data,
+                       const std::vector<uint8_t>& manufacturer_data,
+                       bool transmit_name);
+
+  // Add an ordinary characteristic for reading and/or writing.
+  bool AddCharacteristic(const UUID &id, int properties, int permissions);
+
+  // Add a special 'blob' characteristic with a corresponding control
+  // attribute to manipulate which part of the blob the attribute represents.
+  bool AddBlob(const UUID &id, const UUID &control_id, int properties,
+               int permissions);
+
+  // Put a new value into a characeteristic.
+  // It will be read from a client starting at the next 0-offset read.
+  bool SetCharacteristicValue(const UUID &id, const std::vector<uint8_t> &value);
+
+  // Get the current value of a characteristic.
+  bool GetCharacteristicValue(const UUID &id, std::vector<uint8_t> *value);
+
+  // Start this service. Activate advertisements, allow connections.
+  // Characteristics should all be created before this.
+  bool Start();
+
+  // Cease advertisements and disallow connections.
+  bool Stop();
+
+  // Enable LE scan. Scan results will be cached internally.
+  bool ScanEnable();
+
+  // Disable LE scan.
+  bool ScanDisable();
+
+  // Copy out the cached scan results.
+  bool GetScanResults(ScanResults *results);
+
+ private:
+  // Internal data.
+  std::unique_ptr<ServerInternals> internal_;
+};
+
+}  // namespace gatt
+}  // namespace bluetooth
diff --git a/rtkbt/code/bt/service/hal/bluetooth_gatt_interface.cpp b/rtkbt/code/bt/service/hal/bluetooth_gatt_interface.cpp
new file mode 100755
index 0000000..2f7cf53
--- /dev/null
+++ b/rtkbt/code/bt/service/hal/bluetooth_gatt_interface.cpp
@@ -0,0 +1,960 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#include "service/hal/bluetooth_gatt_interface.h"
+
+#include <mutex>
+#define _LIBCPP_BUILDING_SHARED_MUTEX
+#include <shared_mutex>
+#undef _LIBCPP_BUILDING_SHARED_MUTEX
+
+#include <base/logging.h>
+#include <base/observer_list.h>
+
+#include "service/hal/bluetooth_interface.h"
+#include "service/logging_helpers.h"
+
+using std::lock_guard;
+using std::unique_lock;
+using std::shared_lock;
+using std::mutex;
+using std::shared_timed_mutex;
+
+namespace bluetooth {
+namespace hal {
+
+namespace {
+
+// The global BluetoothGattInterface instance.
+BluetoothGattInterface* g_interface = nullptr;
+
+// Mutex used by callbacks to access |g_interface|. If we initialize or clean it
+// use unique_lock. If only accessing |g_interface| use shared lock.
+//TODO(jpawlowski): this should be just shared_mutex, as we currently don't use
+// timed methods. Change to shared_mutex when we upgrade to C++14
+shared_timed_mutex g_instance_lock;
+
+// Helper for obtaining the observer lists. This is forward declared here
+// and defined below since it depends on BluetoothInterfaceImpl.
+base::ObserverList<BluetoothGattInterface::ClientObserver>*
+    GetClientObservers();
+base::ObserverList<BluetoothGattInterface::ServerObserver>*
+    GetServerObservers();
+
+#define FOR_EACH_CLIENT_OBSERVER(func) \
+  FOR_EACH_OBSERVER(BluetoothGattInterface::ClientObserver, \
+                    *GetClientObservers(), func)
+
+#define FOR_EACH_SERVER_OBSERVER(func) \
+  FOR_EACH_OBSERVER(BluetoothGattInterface::ServerObserver, \
+                    *GetServerObservers(), func)
+
+#define VERIFY_INTERFACE_OR_RETURN() \
+  do { \
+    if (!g_interface) { \
+      LOG(WARNING) << "Callback received while |g_interface| is NULL"; \
+      return; \
+    } \
+  } while (0)
+
+void RegisterClientCallback(int status, int client_if, bt_uuid_t* app_uuid) {
+  shared_lock<shared_timed_mutex> lock(g_instance_lock);
+  VLOG(2) << __func__ << " - status: " << status << " client_if: " << client_if;
+  VERIFY_INTERFACE_OR_RETURN();
+  CHECK(app_uuid);
+
+  FOR_EACH_CLIENT_OBSERVER(
+      RegisterClientCallback(g_interface, status, client_if, *app_uuid));
+}
+
+void ScanResultCallback(bt_bdaddr_t* bda, int rssi, uint8_t* adv_data) {
+  shared_lock<shared_timed_mutex> lock(g_instance_lock);
+  VERIFY_INTERFACE_OR_RETURN();
+  CHECK(bda);
+  CHECK(adv_data);
+
+  VLOG(2) << __func__ << " - BD_ADDR: " << BtAddrString(bda)
+          << " RSSI: " << rssi;
+  FOR_EACH_CLIENT_OBSERVER(
+    ScanResultCallback(g_interface, *bda, rssi, adv_data));
+}
+
+void ConnectCallback(int conn_id, int status, int client_if, bt_bdaddr_t* bda) {
+  shared_lock<shared_timed_mutex> lock(g_instance_lock);
+  VERIFY_INTERFACE_OR_RETURN();
+  CHECK(bda);
+
+  VLOG(2) << __func__ << " - status: " << status
+          << " client_if: " << client_if
+          << " - BD_ADDR: " << BtAddrString(bda)
+          << " - conn_id: " << conn_id;
+
+  FOR_EACH_CLIENT_OBSERVER(
+    ConnectCallback(g_interface, conn_id, status, client_if, *bda));
+}
+
+void DisconnectCallback(int conn_id, int status, int client_if,
+                        bt_bdaddr_t* bda) {
+  shared_lock<shared_timed_mutex> lock(g_instance_lock);
+  VERIFY_INTERFACE_OR_RETURN();
+  CHECK(bda);
+
+  VLOG(2) << __func__ << " - conn_id: " << conn_id
+             << " - status: " << status
+             << " client_if: " << client_if
+             << " - BD_ADDR: " << BtAddrString(bda);
+  FOR_EACH_CLIENT_OBSERVER(
+    DisconnectCallback(g_interface, conn_id, status, client_if, *bda));
+}
+
+void SearchCompleteCallback(int conn_id, int status) {
+  shared_lock<shared_timed_mutex> lock(g_instance_lock);
+  VERIFY_INTERFACE_OR_RETURN();
+
+  VLOG(2) << __func__ << " - conn_id: " << conn_id
+          << " - status: " << status;
+  FOR_EACH_CLIENT_OBSERVER(
+    SearchCompleteCallback(g_interface, conn_id, status));
+}
+
+void RegisterForNotificationCallback(int conn_id, int registered, int status, uint16_t handle) {
+  shared_lock<shared_timed_mutex> lock(g_instance_lock);
+  VERIFY_INTERFACE_OR_RETURN();
+
+  LOG(INFO) << __func__ << " - conn_id: " << conn_id
+          << " - status: " << status
+          << " - registered: " << registered
+          << " - handle: " << handle;
+  FOR_EACH_CLIENT_OBSERVER(
+    RegisterForNotificationCallback(g_interface, conn_id, status, registered, handle));
+}
+
+void NotifyCallback(int conn_id, btgatt_notify_params_t *p_data) {
+  shared_lock<shared_timed_mutex> lock(g_instance_lock);
+  VERIFY_INTERFACE_OR_RETURN();
+
+  VLOG(2) << __func__ << " - conn_id: " << conn_id
+          << " - address: " << BtAddrString(&p_data->bda)
+          << " - handle: " << p_data->handle
+          << " - len: " << p_data->len
+          << " - is_notify: " << p_data->is_notify;
+
+  FOR_EACH_CLIENT_OBSERVER(
+    NotifyCallback(g_interface, conn_id, p_data));
+}
+
+void WriteCharacteristicCallback(int conn_id, int status, uint16_t handle) {
+  shared_lock<shared_timed_mutex> lock(g_instance_lock);
+  VERIFY_INTERFACE_OR_RETURN();
+
+  VLOG(2) << __func__ << " - conn_id: " << conn_id
+          << " - status: " << status;
+
+  FOR_EACH_CLIENT_OBSERVER(
+    WriteCharacteristicCallback(g_interface, conn_id, status, handle));
+}
+
+void WriteDescriptorCallback(int conn_id, int status,
+      uint16_t handle) {
+  shared_lock<shared_timed_mutex> lock(g_instance_lock);
+  VERIFY_INTERFACE_OR_RETURN();
+
+  VLOG(2) << __func__ << " - conn_id: " << conn_id
+          << " - status: " << status;
+
+  FOR_EACH_CLIENT_OBSERVER(
+    WriteDescriptorCallback(g_interface, conn_id, status, handle));
+}
+
+void ListenCallback(int status, int client_if) {
+  shared_lock<shared_timed_mutex> lock(g_instance_lock);
+  VLOG(2) << __func__ << " - status: " << status << " client_if: " << client_if;
+  VERIFY_INTERFACE_OR_RETURN();
+
+  FOR_EACH_CLIENT_OBSERVER(ListenCallback(g_interface, status, client_if));
+}
+
+void MtuChangedCallback(int conn_id, int status, int mtu) {
+  shared_lock<shared_timed_mutex> lock(g_instance_lock);
+  VERIFY_INTERFACE_OR_RETURN();
+
+  VLOG(2) << __func__ << " - conn_id: " << conn_id
+          << " status: " << status
+          << " mtu: " << mtu;
+
+  FOR_EACH_CLIENT_OBSERVER(MtuChangedCallback(g_interface, conn_id, status, mtu));
+}
+
+void MultiAdvEnableCallback(int client_if, int status) {
+  shared_lock<shared_timed_mutex> lock(g_instance_lock);
+  VLOG(2) << __func__ << " - status: " << status << " client_if: " << client_if;
+  VERIFY_INTERFACE_OR_RETURN();
+
+  FOR_EACH_CLIENT_OBSERVER(
+      MultiAdvEnableCallback(g_interface, client_if, status));
+}
+
+void MultiAdvUpdateCallback(int client_if, int status) {
+  shared_lock<shared_timed_mutex> lock(g_instance_lock);
+  VLOG(2) << __func__ << " - status: " << status << " client_if: " << client_if;
+  VERIFY_INTERFACE_OR_RETURN();
+
+  FOR_EACH_CLIENT_OBSERVER(
+      MultiAdvUpdateCallback(g_interface, client_if, status));
+}
+
+void MultiAdvDataCallback(int client_if, int status) {
+  shared_lock<shared_timed_mutex> lock(g_instance_lock);
+  VLOG(2) << __func__ << " - status: " << status << " client_if: " << client_if;
+  VERIFY_INTERFACE_OR_RETURN();
+
+  FOR_EACH_CLIENT_OBSERVER(
+      MultiAdvDataCallback(g_interface, client_if, status));
+}
+
+void MultiAdvDisableCallback(int client_if, int status) {
+  shared_lock<shared_timed_mutex> lock(g_instance_lock);
+  VLOG(2) << __func__ << " - status: " << status << " client_if: " << client_if;
+  VERIFY_INTERFACE_OR_RETURN();
+
+  FOR_EACH_CLIENT_OBSERVER(
+      MultiAdvDisableCallback(g_interface, client_if, status));
+}
+
+void GetGattDbCallback(int conn_id, btgatt_db_element_t *db, int size) {
+  shared_lock<shared_timed_mutex> lock(g_instance_lock);
+  VLOG(2) << __func__ << " - conn_id: " << conn_id << " size: " << size;
+  VERIFY_INTERFACE_OR_RETURN();
+
+  FOR_EACH_CLIENT_OBSERVER(
+      GetGattDbCallback(g_interface, conn_id, db, size));
+}
+
+void ServicesRemovedCallback(int conn_id, uint16_t start_handle, uint16_t end_handle) {
+  shared_lock<shared_timed_mutex> lock(g_instance_lock);
+  VLOG(2) << __func__ << " - conn_id: " << conn_id
+          << " start_handle: " << start_handle
+          << " end_handle: " << end_handle;
+  VERIFY_INTERFACE_OR_RETURN();
+
+  FOR_EACH_CLIENT_OBSERVER(
+      ServicesRemovedCallback(g_interface, conn_id, start_handle, end_handle));
+}
+
+void ServicesAddedCallback(int conn_id, btgatt_db_element_t *added, int added_count) {
+  shared_lock<shared_timed_mutex> lock(g_instance_lock);
+  VLOG(2) << __func__ << " - conn_id: " << conn_id
+          << " added_count: " << added_count;
+  VERIFY_INTERFACE_OR_RETURN();
+
+  FOR_EACH_CLIENT_OBSERVER(
+      ServicesAddedCallback(g_interface, conn_id, added, added_count));
+}
+
+void RegisterServerCallback(int status, int server_if, bt_uuid_t* app_uuid) {
+  shared_lock<shared_timed_mutex> lock(g_instance_lock);
+  VLOG(2) << __func__ << " - status: " << status << " server_if: " << server_if;
+  VERIFY_INTERFACE_OR_RETURN();
+  CHECK(app_uuid);
+
+  FOR_EACH_SERVER_OBSERVER(
+      RegisterServerCallback(g_interface, status, server_if, *app_uuid));
+}
+
+void ConnectionCallback(int conn_id, int server_if, int connected,
+                        bt_bdaddr_t* bda) {
+  shared_lock<shared_timed_mutex> lock(g_instance_lock);
+  VLOG(2) << __func__ << " - conn_id: " << conn_id
+          << " server_if: " << server_if << " connected: " << connected;
+  VERIFY_INTERFACE_OR_RETURN();
+  CHECK(bda);
+
+  FOR_EACH_SERVER_OBSERVER(
+      ConnectionCallback(g_interface, conn_id, server_if, connected, *bda));
+}
+
+void ServiceAddedCallback(
+    int status,
+    int server_if,
+    btgatt_srvc_id_t* srvc_id,
+    int srvc_handle) {
+  shared_lock<shared_timed_mutex> lock(g_instance_lock);
+  VLOG(2) << __func__ << " - status: " << status << " server_if: " << server_if
+          << " handle: " << srvc_handle;
+  VERIFY_INTERFACE_OR_RETURN();
+  CHECK(srvc_id);
+
+  FOR_EACH_SERVER_OBSERVER(ServiceAddedCallback(
+      g_interface, status, server_if, *srvc_id, srvc_handle));
+}
+
+void CharacteristicAddedCallback(
+    int status, int server_if,
+    bt_uuid_t* uuid,
+    int srvc_handle,
+    int char_handle) {
+  shared_lock<shared_timed_mutex> lock(g_instance_lock);
+  VLOG(2) << __func__ << " - status: " << status << " server_if: " << server_if
+          << " srvc_handle: " << srvc_handle << " char_handle: " << char_handle;
+  VERIFY_INTERFACE_OR_RETURN();
+  CHECK(uuid);
+
+  FOR_EACH_SERVER_OBSERVER(CharacteristicAddedCallback(
+      g_interface, status, server_if, *uuid, srvc_handle, char_handle));
+}
+
+void DescriptorAddedCallback(
+    int status, int server_if,
+    bt_uuid_t* uuid,
+    int srvc_handle,
+    int desc_handle) {
+  shared_lock<shared_timed_mutex> lock(g_instance_lock);
+  VLOG(2) << __func__ << " - status: " << status << " server_if: " << server_if
+          << " srvc_handle: " << srvc_handle << " desc_handle: " << desc_handle;
+  VERIFY_INTERFACE_OR_RETURN();
+  CHECK(uuid);
+
+  FOR_EACH_SERVER_OBSERVER(DescriptorAddedCallback(
+      g_interface, status, server_if, *uuid, srvc_handle, desc_handle));
+}
+
+void ServiceStartedCallback(int status, int server_if, int srvc_handle) {
+  shared_lock<shared_timed_mutex> lock(g_instance_lock);
+  VLOG(2) << __func__ << " - status: " << status << " server_if: " << server_if
+          << " handle: " << srvc_handle;
+  VERIFY_INTERFACE_OR_RETURN();
+
+  FOR_EACH_SERVER_OBSERVER(ServiceStartedCallback(
+      g_interface, status, server_if, srvc_handle));
+}
+
+void ServiceStoppedCallback(int status, int server_if, int srvc_handle) {
+  shared_lock<shared_timed_mutex> lock(g_instance_lock);
+  VLOG(2) << __func__ << " - status: " << status << " server_if: " << server_if
+          << " handle: " << srvc_handle;
+  VERIFY_INTERFACE_OR_RETURN();
+
+  FOR_EACH_SERVER_OBSERVER(ServiceStoppedCallback(
+      g_interface, status, server_if, srvc_handle));
+}
+
+void ServiceDeletedCallback(int status, int server_if, int srvc_handle) {
+  shared_lock<shared_timed_mutex> lock(g_instance_lock);
+  VLOG(2) << __func__ << " - status: " << status << " server_if: " << server_if
+          << " handle: " << srvc_handle;
+  VERIFY_INTERFACE_OR_RETURN();
+
+  FOR_EACH_SERVER_OBSERVER(ServiceDeletedCallback(
+      g_interface, status, server_if, srvc_handle));
+}
+
+void RequestReadCallback(int conn_id, int trans_id, bt_bdaddr_t* bda,
+                         int attr_handle, int offset, bool is_long) {
+  shared_lock<shared_timed_mutex> lock(g_instance_lock);
+  VLOG(2) << __func__ << " - conn_id: " << conn_id << " trans_id: " << trans_id
+          << " attr_handle: " << attr_handle << " offset: " << offset
+          << " is_long: " << is_long;
+  VERIFY_INTERFACE_OR_RETURN();
+  CHECK(bda);
+
+  FOR_EACH_SERVER_OBSERVER(RequestReadCallback(
+      g_interface, conn_id, trans_id, *bda, attr_handle, offset, is_long));
+}
+
+void RequestWriteCallback(int conn_id, int trans_id,
+                          bt_bdaddr_t* bda,
+                          int attr_handle, int offset, int length,
+                          bool need_rsp, bool is_prep, uint8_t* value) {
+  shared_lock<shared_timed_mutex> lock(g_instance_lock);
+  VLOG(2) << __func__ << " - conn_id: " << conn_id << " trans_id: " << trans_id
+          << " attr_handle: " << attr_handle << " offset: " << offset
+          << " length: " << length << " need_rsp: " << need_rsp
+          << " is_prep: " << is_prep;
+  VERIFY_INTERFACE_OR_RETURN();
+  CHECK(bda);
+
+  FOR_EACH_SERVER_OBSERVER(RequestWriteCallback(
+      g_interface, conn_id, trans_id, *bda, attr_handle, offset, length,
+      need_rsp, is_prep, value));
+}
+
+void RequestExecWriteCallback(int conn_id, int trans_id,
+                              bt_bdaddr_t* bda, int exec_write) {
+  shared_lock<shared_timed_mutex> lock(g_instance_lock);
+  VLOG(2) << __func__ << " - conn_id: " << conn_id << " trans_id: " << trans_id
+          << " exec_write: " << exec_write;
+  VERIFY_INTERFACE_OR_RETURN();
+  CHECK(bda);
+
+  FOR_EACH_SERVER_OBSERVER(RequestExecWriteCallback(
+      g_interface, conn_id, trans_id, *bda, exec_write));
+}
+
+void ResponseConfirmationCallback(int status, int handle) {
+  shared_lock<shared_timed_mutex> lock(g_instance_lock);
+  VLOG(2) << __func__ << " - status: " << status << " handle: " << handle;
+  VERIFY_INTERFACE_OR_RETURN();
+
+  FOR_EACH_SERVER_OBSERVER(ResponseConfirmationCallback(
+      g_interface, status, handle));
+}
+
+void IndicationSentCallback(int conn_id, int status) {
+  shared_lock<shared_timed_mutex> lock(g_instance_lock);
+  VLOG(2) << __func__ << " - conn_id: " << conn_id << " status: " << status;
+  VERIFY_INTERFACE_OR_RETURN();
+
+  FOR_EACH_SERVER_OBSERVER(IndicationSentCallback(
+      g_interface, conn_id, status));
+}
+
+void MtuChangedCallback(int conn_id, int mtu) {
+  shared_lock<shared_timed_mutex> lock(g_instance_lock);
+  VLOG(2) << __func__ << " - conn_id: " << conn_id << " mtu: " << mtu;
+  VERIFY_INTERFACE_OR_RETURN();
+
+  FOR_EACH_SERVER_OBSERVER(MtuChangedCallback(g_interface, conn_id, mtu));
+}
+
+// The HAL Bluetooth GATT client interface callbacks. These signal a mixture of
+// GATT client-role and GAP events.
+const btgatt_client_callbacks_t gatt_client_callbacks = {
+    RegisterClientCallback,
+    ScanResultCallback,
+    ConnectCallback,
+    DisconnectCallback,
+    SearchCompleteCallback,
+    RegisterForNotificationCallback,
+    NotifyCallback,
+    nullptr,  // read_characteristic_cb
+    WriteCharacteristicCallback,
+    nullptr,  // read_descriptor_cb
+    WriteDescriptorCallback,
+    nullptr,  // execute_write_cb
+    nullptr,  // read_remote_rssi_cb
+    ListenCallback,
+    MtuChangedCallback,
+    nullptr,  // scan_filter_cfg_cb
+    nullptr,  // scan_filter_param_cb
+    nullptr,  // scan_filter_status_cb
+    MultiAdvEnableCallback,
+    MultiAdvUpdateCallback,
+    MultiAdvDataCallback,
+    MultiAdvDisableCallback,
+    nullptr,  // congestion_cb
+    nullptr,  // batchscan_cfg_storage_cb
+    nullptr,  // batchscan_enb_disable_cb
+    nullptr,  // batchscan_reports_cb
+    nullptr,  // batchscan_threshold_cb
+    nullptr,  // track_adv_event_cb
+    nullptr,  // scan_parameter_setup_completed_cb
+    GetGattDbCallback,
+    ServicesRemovedCallback,
+    ServicesAddedCallback,
+};
+
+const btgatt_server_callbacks_t gatt_server_callbacks = {
+    RegisterServerCallback,
+    ConnectionCallback,
+    ServiceAddedCallback,
+    nullptr,  // included_service_added_cb
+    CharacteristicAddedCallback,
+    DescriptorAddedCallback,
+    ServiceStartedCallback,
+    ServiceStoppedCallback,
+    ServiceDeletedCallback,
+    RequestReadCallback,
+    RequestWriteCallback,
+    RequestExecWriteCallback,
+    ResponseConfirmationCallback,
+    IndicationSentCallback,
+    nullptr,  // congestion_cb
+    MtuChangedCallback,
+};
+
+const btgatt_callbacks_t gatt_callbacks = {
+  sizeof(btgatt_callbacks_t),
+  &gatt_client_callbacks,
+  &gatt_server_callbacks
+};
+
+}  // namespace
+
+// BluetoothGattInterface implementation for production.
+class BluetoothGattInterfaceImpl : public BluetoothGattInterface {
+ public:
+  BluetoothGattInterfaceImpl() : hal_iface_(nullptr) {
+  }
+
+  ~BluetoothGattInterfaceImpl() override {
+    if (hal_iface_)
+        hal_iface_->cleanup();
+  }
+
+  // BluetoothGattInterface overrides:
+  void AddClientObserver(ClientObserver* observer) override {
+    client_observers_.AddObserver(observer);
+  }
+
+  void RemoveClientObserver(ClientObserver* observer) override {
+    client_observers_.RemoveObserver(observer);
+  }
+
+  void AddServerObserver(ServerObserver* observer) override {
+    server_observers_.AddObserver(observer);
+  }
+
+  void RemoveServerObserver(ServerObserver* observer) override {
+    server_observers_.RemoveObserver(observer);
+  }
+
+  const btgatt_client_interface_t* GetClientHALInterface() const override {
+    return hal_iface_->client;
+  }
+
+  const btgatt_server_interface_t* GetServerHALInterface() const override {
+    return hal_iface_->server;
+  }
+
+  // Initialize the interface.
+  bool Initialize() {
+    const bt_interface_t* bt_iface =
+        BluetoothInterface::Get()->GetHALInterface();
+    CHECK(bt_iface);
+
+    const btgatt_interface_t* gatt_iface =
+        reinterpret_cast<const btgatt_interface_t*>(
+            bt_iface->get_profile_interface(BT_PROFILE_GATT_ID));
+    if (!gatt_iface) {
+      LOG(ERROR) << "Failed to obtain HAL GATT interface handle";
+      return false;
+    }
+
+    bt_status_t status = gatt_iface->init(&gatt_callbacks);
+    if (status != BT_STATUS_SUCCESS) {
+      LOG(ERROR) << "Failed to initialize HAL GATT interface";
+      return false;
+    }
+
+    hal_iface_ = gatt_iface;
+
+    return true;
+  }
+
+  base::ObserverList<ClientObserver>* client_observers() {
+    return &client_observers_;
+  }
+
+  base::ObserverList<ServerObserver>* server_observers() {
+    return &server_observers_;
+  }
+
+ private:
+  // List of observers that are interested in notifications from us.
+  // We're not using a base::ObserverListThreadSafe, which it posts observer
+  // events automatically on the origin threads, as we want to avoid that
+  // overhead and simply forward the events to the upper layer.
+  base::ObserverList<ClientObserver> client_observers_;
+  base::ObserverList<ServerObserver> server_observers_;
+
+  // The HAL handle obtained from the shared library. We hold a weak reference
+  // to this since the actual data resides in the shared Bluetooth library.
+  const btgatt_interface_t* hal_iface_;
+
+  DISALLOW_COPY_AND_ASSIGN(BluetoothGattInterfaceImpl);
+};
+
+namespace {
+
+base::ObserverList<BluetoothGattInterface::ClientObserver>*
+GetClientObservers() {
+  CHECK(g_interface);
+  return static_cast<BluetoothGattInterfaceImpl*>(
+      g_interface)->client_observers();
+}
+
+base::ObserverList<BluetoothGattInterface::ServerObserver>*
+GetServerObservers() {
+  CHECK(g_interface);
+  return static_cast<BluetoothGattInterfaceImpl*>(
+      g_interface)->server_observers();
+}
+
+}  // namespace
+
+// Default observer implementations. These are provided so that the methods
+// themselves are optional.
+void BluetoothGattInterface::ClientObserver::RegisterClientCallback(
+    BluetoothGattInterface* /* gatt_iface */,
+    int /* status */,
+    int /* client_if */,
+    const bt_uuid_t& /* app_uuid */) {
+  // Do nothing.
+}
+void BluetoothGattInterface::ClientObserver::ScanResultCallback(
+    BluetoothGattInterface* /* gatt_iface */,
+    const bt_bdaddr_t& /* bda */,
+    int /* rssi */,
+    uint8_t* /* adv_data */) {
+  // Do Nothing.
+}
+
+void BluetoothGattInterface::ClientObserver::ConnectCallback(
+    BluetoothGattInterface* /* gatt_iface */,
+    int /* conn_id */,
+    int /* status */,
+    int /* client_if */,
+    const bt_bdaddr_t& /* bda */) {
+  // Do nothing
+}
+
+void BluetoothGattInterface::ClientObserver::DisconnectCallback(
+    BluetoothGattInterface* /* gatt_iface */,
+    int /* conn_id */,
+    int /* status */,
+    int /* client_if */,
+    const bt_bdaddr_t& /* bda */) {
+  // Do nothing
+}
+
+void BluetoothGattInterface::ClientObserver::SearchCompleteCallback(
+    BluetoothGattInterface* /* gatt_iface */,
+    int /* conn_id */,
+    int /* status */) {
+  // Do nothing
+}
+
+void BluetoothGattInterface::ClientObserver::RegisterForNotificationCallback(
+    BluetoothGattInterface* /* gatt_iface */,
+    int /* conn_id */,
+    int /* status */,
+    int /* registered */,
+    uint16_t /* handle */) {
+  // Do nothing
+}
+
+void BluetoothGattInterface::ClientObserver::NotifyCallback(
+    BluetoothGattInterface* /* gatt_iface */,
+    int /* conn_id */,
+    btgatt_notify_params_t* /* p_data */) {
+  // Do nothing
+}
+
+void BluetoothGattInterface::ClientObserver::WriteCharacteristicCallback(
+    BluetoothGattInterface* /* gatt_iface */,
+    int /* conn_id */,
+    int /* status */,
+    uint16_t /* handle */) {
+  // Do nothing
+}
+
+void BluetoothGattInterface::ClientObserver::WriteDescriptorCallback(
+    BluetoothGattInterface* /* gatt_iface */,
+    int /* conn_id */,
+    int /* status */,
+    uint16_t /* handle */) {
+  // Do nothing
+}
+
+void BluetoothGattInterface::ClientObserver::ListenCallback(
+    BluetoothGattInterface* /* gatt_iface */,
+    int /* status */,
+    int /* client_if */) {
+  // Do nothing.
+}
+
+void BluetoothGattInterface::ClientObserver::MtuChangedCallback(
+    BluetoothGattInterface* /* gatt_iface */,
+    int /* conn_id */,
+    int /* statis*/,
+    int /* mtu */) {
+  // Do nothing.
+}
+
+void BluetoothGattInterface::ClientObserver::MultiAdvEnableCallback(
+    BluetoothGattInterface* /* gatt_iface */,
+    int /* status */,
+    int /* client_if */) {
+  // Do nothing.
+}
+void BluetoothGattInterface::ClientObserver::MultiAdvUpdateCallback(
+    BluetoothGattInterface* /* gatt_iface */,
+    int /* status */,
+    int /* client_if */) {
+  // Do nothing.
+}
+void BluetoothGattInterface::ClientObserver::MultiAdvDataCallback(
+    BluetoothGattInterface* /* gatt_iface */,
+    int /* status */,
+    int /* client_if */) {
+  // Do nothing.
+}
+void BluetoothGattInterface::ClientObserver::MultiAdvDisableCallback(
+    BluetoothGattInterface* /* gatt_iface */,
+    int /* status */,
+    int /* client_if */) {
+  // Do nothing.
+}
+
+void BluetoothGattInterface::ClientObserver::GetGattDbCallback(
+    BluetoothGattInterface* /* gatt_iface */,
+    int /* conn_id */,
+    btgatt_db_element_t* /* gatt_db */,
+    int /* size */) {
+  // Do nothing.
+}
+
+void BluetoothGattInterface::ClientObserver::ServicesRemovedCallback(
+    BluetoothGattInterface* /* gatt_iface */,
+    int /* conn_id */,
+    uint16_t /* start_handle */,
+    uint16_t /* end_handle */) {
+  // Do nothing.
+}
+
+void BluetoothGattInterface::ClientObserver::ServicesAddedCallback(
+    BluetoothGattInterface* /* gatt_iface */,
+    int /* conn_id */,
+    btgatt_db_element_t* /* added */,
+    int /* added_count */) {
+  // Do nothing.
+}
+
+void BluetoothGattInterface::ServerObserver::RegisterServerCallback(
+    BluetoothGattInterface* /* gatt_iface */,
+    int /* status */,
+    int /* server_if */,
+    const bt_uuid_t& /* app_uuid */) {
+  // Do nothing.
+}
+
+void BluetoothGattInterface::ServerObserver::ConnectionCallback(
+    BluetoothGattInterface* /* gatt_iface */,
+    int /* conn_id */,
+    int /* server_if */,
+    int /* connected */,
+    const bt_bdaddr_t& /* bda */) {
+  // Do nothing.
+}
+
+void BluetoothGattInterface::ServerObserver::ServiceAddedCallback(
+    BluetoothGattInterface* /* gatt_iface */,
+    int /* status */,
+    int /* server_if */,
+    const btgatt_srvc_id_t& /* srvc_id */,
+    int /* srvc_handle */) {
+  // Do nothing.
+}
+
+void BluetoothGattInterface::ServerObserver::CharacteristicAddedCallback(
+    BluetoothGattInterface* /* gatt_iface */,
+    int /* status */,
+    int /* server_if */,
+    const bt_uuid_t& /* uuid */,
+    int /* srvc_handle */,
+    int /* char_handle */) {
+  // Do nothing.
+}
+
+void BluetoothGattInterface::ServerObserver::DescriptorAddedCallback(
+    BluetoothGattInterface* /* gatt_iface */,
+    int /* status */,
+    int /* server_if */,
+    const bt_uuid_t& /* uuid */,
+    int /* srvc_handle */,
+    int /* desc_handle */) {
+  // Do nothing.
+}
+
+void BluetoothGattInterface::ServerObserver::ServiceStartedCallback(
+    BluetoothGattInterface* /* gatt_iface */,
+    int /* status */,
+    int /* server_if */,
+    int /* srvc_handle */) {
+  // Do nothing.
+}
+
+void BluetoothGattInterface::ServerObserver::ServiceStoppedCallback(
+    BluetoothGattInterface* /* gatt_iface */,
+    int /* status */,
+    int /* server_if */,
+    int /* srvc_handle */) {
+  // Do nothing.
+}
+
+void BluetoothGattInterface::ServerObserver::ServiceDeletedCallback(
+    BluetoothGattInterface* /* gatt_iface */,
+    int /* status */,
+    int /* server_if */,
+    int /* srvc_handle */) {
+  // Do nothing.
+}
+
+void BluetoothGattInterface::ServerObserver::RequestReadCallback(
+    BluetoothGattInterface* /* gatt_iface */,
+    int /* conn_id */,
+    int /* trans_id */,
+    const bt_bdaddr_t& /* bda */,
+    int /* attr_handle */,
+    int /* offset */,
+    bool /* is_long */) {
+  // Do nothing.
+}
+
+void BluetoothGattInterface::ServerObserver::RequestWriteCallback(
+    BluetoothGattInterface* /* gatt_iface */,
+    int /* conn_id */,
+    int /* trans_id */,
+    const bt_bdaddr_t& /* bda */,
+    int /* attr_handle */,
+    int /* offset */,
+    int /* length */,
+    bool /* need_rsp */,
+    bool /* is_prep */,
+    uint8_t* /* value */) {
+  // Do nothing.
+}
+
+void BluetoothGattInterface::ServerObserver::RequestExecWriteCallback(
+    BluetoothGattInterface* /* gatt_iface */,
+    int /* conn_id */,
+    int /* trans_id */,
+    const bt_bdaddr_t& /* bda */,
+    int /* exec_write */) {
+  // Do nothing.
+}
+
+void BluetoothGattInterface::ServerObserver::ResponseConfirmationCallback(
+    BluetoothGattInterface* /* gatt_iface */,
+    int /* status */,
+    int /* handle */) {
+  // Do nothing
+}
+
+void BluetoothGattInterface::ServerObserver::IndicationSentCallback(
+    BluetoothGattInterface* /* gatt_iface */,
+    int /* conn_id */,
+    int /* status */) {
+  // Do nothing.
+}
+
+void BluetoothGattInterface::ServerObserver::MtuChangedCallback(
+    BluetoothGattInterface* /* gatt_iface */,
+    int /* conn_id */,
+    int /* mtu */) {
+  // Do nothing.
+}
+
+// static
+bool BluetoothGattInterface::Initialize() {
+  unique_lock<shared_timed_mutex> lock(g_instance_lock);
+  CHECK(!g_interface);
+
+  std::unique_ptr<BluetoothGattInterfaceImpl> impl(
+      new BluetoothGattInterfaceImpl());
+  if (!impl->Initialize()) {
+    LOG(ERROR) << "Failed to initialize BluetoothGattInterface";
+    return false;
+  }
+
+  g_interface = impl.release();
+
+  return true;
+}
+
+// static
+void BluetoothGattInterface::CleanUp() {
+  unique_lock<shared_timed_mutex> lock(g_instance_lock);
+  CHECK(g_interface);
+
+  delete g_interface;
+  g_interface = nullptr;
+}
+
+// static
+bool BluetoothGattInterface::IsInitialized() {
+  shared_lock<shared_timed_mutex> lock(g_instance_lock);
+
+  return g_interface != nullptr;
+}
+
+// static
+BluetoothGattInterface* BluetoothGattInterface::Get() {
+  shared_lock<shared_timed_mutex> lock(g_instance_lock);
+  CHECK(g_interface);
+  return g_interface;
+}
+
+// static
+void BluetoothGattInterface::InitializeForTesting(
+    BluetoothGattInterface* test_instance) {
+  unique_lock<shared_timed_mutex> lock(g_instance_lock);
+  CHECK(test_instance);
+  CHECK(!g_interface);
+
+  g_interface = test_instance;
+}
+
+bt_status_t BluetoothGattInterface::StartScan(int client_id) {
+  lock_guard<mutex> lock(scan_clients_lock_);
+
+  // Scan already initiated for this client.
+  if (scan_client_set_.find(client_id) != scan_client_set_.end()) {
+    // Assume starting scan multiple times is not error, but warn user.
+    LOG(WARNING) << "Scan already initiated for client";
+    return BT_STATUS_SUCCESS;
+  }
+
+  // If this is the first scan client, then make a call into the stack. We
+  // only do this when the reference count changes to or from 0.
+  if (scan_client_set_.empty()) {
+    bt_status_t status = GetClientHALInterface()->scan(true);
+    if (status != BT_STATUS_SUCCESS) {
+      LOG(ERROR) << "HAL call to scan failed";
+      return status;
+    }
+  }
+
+  scan_client_set_.insert(client_id);
+
+  return BT_STATUS_SUCCESS;
+}
+
+bt_status_t BluetoothGattInterface::StopScan(int client_id) {
+  lock_guard<mutex> lock(scan_clients_lock_);
+
+  // Scan not initiated for this client.
+  auto iter = scan_client_set_.find(client_id);
+  if (iter == scan_client_set_.end()) {
+    // Assume stopping scan multiple times is not error, but warn user.
+    LOG(WARNING) << "Scan already stopped or not initiated for client";
+    return BT_STATUS_SUCCESS;
+  }
+
+  if (scan_client_set_.size() == 1) {
+    bt_status_t status = GetClientHALInterface()->scan(false);
+    if (status != BT_STATUS_SUCCESS) {
+      LOG(ERROR) << "HAL call to stop scan failed";
+      return status;
+    }
+  }
+
+  scan_client_set_.erase(iter);
+  return BT_STATUS_SUCCESS;
+}
+
+}  // namespace hal
+}  // namespace bluetooth
diff --git a/rtkbt/code/bt/service/hal/bluetooth_gatt_interface.h b/rtkbt/code/bt/service/hal/bluetooth_gatt_interface.h
new file mode 100755
index 0000000..462220c
--- /dev/null
+++ b/rtkbt/code/bt/service/hal/bluetooth_gatt_interface.h
@@ -0,0 +1,291 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#pragma once
+
+#include <mutex>
+#include <unordered_set>
+#include <vector>
+
+#include <base/macros.h>
+#include <hardware/bluetooth.h>
+#include <hardware/bt_gatt.h>
+
+namespace bluetooth {
+namespace hal {
+
+// This class represents the standard BT-GATT interface. This class combines
+// GATT profile server and client role operations with general GAP profile
+// operations of various roles (central, scanner, peripheral, advertiser),
+// wrapping around the underlying bt_gatt_interface_t structure. A single
+// instance of this class exists per application and it allows multiple classes
+// to interface with the global HAL interface by multiplexing callbacks among
+// registered clients.
+//
+// This is declared as an abstract interface so that a fake implementation can
+// be injected for testing the upper layer.
+class BluetoothGattInterface {
+ public:
+  // The standard BT-GATT client callback interface. The HAL interface doesn't
+  // allow registering "user data" that carries context beyond the callback
+  // parameters, forcing implementations to deal with global variables. The
+  // Observer interface is to redirect these events to interested parties in an
+  // object-oriented manner.
+  class ClientObserver {
+   public:
+    virtual ~ClientObserver() = default;
+
+    // All of the events below correspond to callbacks defined in
+    // "bt_gatt_client_callbacks_t" in the HAL API definitions.
+
+    virtual void RegisterClientCallback(
+        BluetoothGattInterface* gatt_iface,
+        int status, int client_if,
+        const bt_uuid_t& app_uuid);
+
+    virtual void ScanResultCallback(
+        BluetoothGattInterface* gatt_iface,
+        const bt_bdaddr_t& bda, int rssi,
+        uint8_t* adv_data);
+
+    virtual void ConnectCallback(
+        BluetoothGattInterface* gatt_iface,
+        int conn_id,
+        int status,
+        int client_if,
+        const bt_bdaddr_t& bda);
+
+    virtual void DisconnectCallback(
+        BluetoothGattInterface* gatt_iface,
+        int conn_id,
+        int status,
+        int client_if,
+        const bt_bdaddr_t& bda);
+
+    virtual void SearchCompleteCallback(
+        BluetoothGattInterface* gatt_iface,
+        int conn_id,
+        int status);
+
+    virtual void RegisterForNotificationCallback(
+        BluetoothGattInterface* gatt_iface,
+        int conn_id, int status, int registered, uint16_t handle);
+
+    virtual void NotifyCallback(
+        BluetoothGattInterface* gatt_iface,
+        int conn_id, btgatt_notify_params_t* p_data);
+
+    virtual void WriteCharacteristicCallback(
+        BluetoothGattInterface* gatt_iface,
+        int conn_id, int status, uint16_t handle);
+
+    virtual void WriteDescriptorCallback(
+        BluetoothGattInterface* gatt_iface,
+        int conn_id, int status, uint16_t handle);
+
+    virtual void ListenCallback(
+        BluetoothGattInterface* gatt_iface,
+        int status, int client_if);
+
+    virtual void MtuChangedCallback(
+        BluetoothGattInterface* gatt_iface,
+        int conn_id, int status, int mtu);
+
+    virtual void MultiAdvEnableCallback(
+        BluetoothGattInterface* gatt_iface,
+        int client_if, int status);
+
+    virtual void MultiAdvUpdateCallback(
+        BluetoothGattInterface* gatt_iface,
+        int client_if, int status);
+
+    virtual void MultiAdvDataCallback(
+        BluetoothGattInterface* gatt_iface,
+        int client_if, int status);
+
+    virtual void MultiAdvDisableCallback(
+        BluetoothGattInterface* gatt_iface,
+        int client_if, int status);
+
+    virtual void GetGattDbCallback(
+        BluetoothGattInterface* gatt_iface,
+        int conn_id,
+        btgatt_db_element_t* gatt_db,
+        int size);
+
+    virtual void ServicesRemovedCallback(
+        BluetoothGattInterface* gatt_iface,
+        int conn_id,
+        uint16_t start_handle,
+        uint16_t end_handle);
+
+    virtual void ServicesAddedCallback(
+        BluetoothGattInterface* gatt_iface,
+        int conn_id,
+        btgatt_db_element_t *added,
+        int added_count);
+  };
+
+  // The standard BT-GATT server callback interface.
+  class ServerObserver {
+   public:
+    virtual ~ServerObserver() = default;
+
+    virtual void RegisterServerCallback(
+        BluetoothGattInterface* gatt_iface,
+        int status, int server_if,
+        const bt_uuid_t& app_uuid);
+
+    virtual void ConnectionCallback(
+        BluetoothGattInterface* gatt_iface,
+        int conn_id, int server_if,
+        int connected,
+        const bt_bdaddr_t& bda);
+
+    virtual void ServiceAddedCallback(
+        BluetoothGattInterface* gatt_iface,
+        int status, int server_if,
+        const btgatt_srvc_id_t& srvc_id,
+        int srvc_handle);
+
+    virtual void CharacteristicAddedCallback(
+        BluetoothGattInterface* gatt_iface,
+        int status, int server_if,
+        const bt_uuid_t& uuid,
+        int srvc_handle,
+        int char_handle);
+
+    virtual void DescriptorAddedCallback(
+        BluetoothGattInterface* gatt_iface,
+        int status, int server_if,
+        const bt_uuid_t& uuid,
+        int srvc_handle,
+        int desc_handle);
+
+    virtual void ServiceStartedCallback(
+        BluetoothGattInterface* gatt_iface,
+        int status, int server_if,
+        int srvc_handle);
+
+    virtual void ServiceStoppedCallback(
+        BluetoothGattInterface* gatt_iface,
+        int status, int server_if,
+        int srvc_handle);
+
+    virtual void ServiceDeletedCallback(
+        BluetoothGattInterface* gatt_iface,
+        int status, int server_if,
+        int srvc_handle);
+
+    virtual void RequestReadCallback(
+        BluetoothGattInterface* gatt_iface,
+        int conn_id, int trans_id,
+        const bt_bdaddr_t& bda,
+        int attr_handle, int offset,
+        bool is_long);
+
+    virtual void RequestWriteCallback(
+        BluetoothGattInterface* gatt_iface,
+        int conn_id, int trans_id,
+        const bt_bdaddr_t& bda,
+        int attr_handle, int offset, int length,
+        bool need_rsp, bool is_prep, uint8_t* value);
+
+    virtual void RequestExecWriteCallback(
+        BluetoothGattInterface* gatt_iface,
+        int conn_id, int trans_id,
+        const bt_bdaddr_t& bda, int exec_write);
+
+    virtual void ResponseConfirmationCallback(
+        BluetoothGattInterface* gatt_iface,
+        int status,
+        int handle);
+
+    virtual void IndicationSentCallback(
+        BluetoothGattInterface* gatt_iface, int conn_id, int status);
+
+    virtual void MtuChangedCallback(
+        BluetoothGattInterface* gatt_iface, int conn_id, int mtu);
+  };
+
+  // Initialize and clean up the BluetoothInterface singleton. Returns false if
+  // the underlying HAL interface failed to initialize, and true on success.
+  static bool Initialize();
+
+  // Shuts down and cleans up the interface. CleanUp must be called on the same
+  // thread that called Initialize.
+  static void CleanUp();
+
+  // Returns true if the interface was initialized and a global singleton has
+  // been created.
+  static bool IsInitialized();
+
+  // Initialize for testing. Use this to inject a test version of
+  // BluetoothGattInterface. To be used from unit tests only.
+  static void InitializeForTesting(BluetoothGattInterface* test_instance);
+
+  // Returns the BluetoothGattInterface singleton. If the interface has
+  // not been initialized, returns nullptr. This method is thread-safe, in that
+  // it will block if the internal lock is being held by another thread. Don't
+  // call this re-entrantly from an observer event as this may cause a deadlock.
+  static BluetoothGattInterface* Get();
+
+  // Add or remove an observer that is interested in GATT client interface
+  // notifications from us. Thread-safety is guaranteed by ObserverList.
+  virtual void AddClientObserver(ClientObserver* observer) = 0;
+  virtual void RemoveClientObserver(ClientObserver* observer) = 0;
+
+  // Add or remove an observer that is interested in GATT server interface
+  // notifications from us. Thread-safety is guaranteed by ObserverList.
+  virtual void AddServerObserver(ServerObserver* observer) = 0;
+  virtual void RemoveServerObserver(ServerObserver* observer) = 0;
+
+  // The HAL module pointer that represents the standard BT-GATT client
+  // interface. This is implemented in and provided by the shared Bluetooth
+  // library, so this isn't owned by us.
+  //
+  // Upper layers can make btgatt_client_interface_t API calls through this
+  // structure.
+  virtual const btgatt_client_interface_t* GetClientHALInterface() const = 0;
+
+  // The HAL module pointer that represents the standard BT-GATT server
+  // interface. This is implemented in and provided by the shared Bluetooth
+  // library, so this isn't owned by us.
+  //
+  // Upper layers can make btgatt_server_interface_t API calls through this
+  // structure.
+  virtual const btgatt_server_interface_t* GetServerHALInterface() const = 0;
+
+  // Initiates a regular BLE device scan. This is called internally from each
+  // LowEnergyClient. This function synchronizes the scan requests and maintains
+  // an internal reference count for each scan client that is interested.
+  bt_status_t StartScan(int client_id);
+  bt_status_t StopScan(int client_id);
+
+ protected:
+  BluetoothGattInterface() = default;
+  virtual ~BluetoothGattInterface() = default;
+
+ private:
+  // Used to keep a reference count for the different BLE scan clients.
+  std::mutex scan_clients_lock_;
+  std::unordered_set<int> scan_client_set_;
+
+  DISALLOW_COPY_AND_ASSIGN(BluetoothGattInterface);
+};
+
+}  // namespace hal
+}  // namespace bluetooth
diff --git a/rtkbt/code/bt/service/hal/bluetooth_interface.cpp b/rtkbt/code/bt/service/hal/bluetooth_interface.cpp
new file mode 100755
index 0000000..2814e1b
--- /dev/null
+++ b/rtkbt/code/bt/service/hal/bluetooth_interface.cpp
@@ -0,0 +1,434 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#include "service/hal/bluetooth_interface.h"
+
+#include <mutex>
+#define _LIBCPP_BUILDING_SHARED_MUTEX
+#include <shared_mutex>
+#undef _LIBCPP_BUILDING_SHARED_MUTEX
+
+#include <base/logging.h>
+#include <base/observer_list.h>
+
+#include "service/logging_helpers.h"
+
+extern "C" {
+#include "btcore/include/hal_util.h"
+}  // extern "C"
+
+using std::lock_guard;
+using std::unique_lock;
+using std::shared_lock;
+using std::mutex;
+using std::shared_timed_mutex;
+
+namespace bluetooth {
+namespace hal {
+
+namespace {
+
+// The global BluetoothInterface instance.
+BluetoothInterface* g_bluetooth_interface = nullptr;
+
+// Mutex used by callbacks to access |g_interface|. If we initialize or clean it
+// use unique_lock. If only accessing |g_interface| use shared lock.
+//TODO(jpawlowski): this should be just shared_mutex, as we currently don't use
+// timed methods. Change to shared_mutex when we upgrade to C++14
+shared_timed_mutex g_instance_lock;
+
+// Helper for obtaining the observer list. This is forward declared here and
+// defined below since it depends on BluetoothInterfaceImpl.
+base::ObserverList<BluetoothInterface::Observer>* GetObservers();
+
+#define FOR_EACH_BLUETOOTH_OBSERVER(func) \
+  FOR_EACH_OBSERVER(BluetoothInterface::Observer, *GetObservers(), func)
+
+#define VERIFY_INTERFACE_OR_RETURN() \
+  do { \
+    if (!g_bluetooth_interface) { \
+      LOG(WARNING) << "Callback received while |g_interface| is NULL"; \
+      return; \
+    } \
+  } while (0)
+
+void AdapterStateChangedCallback(bt_state_t state) {
+  shared_lock<shared_timed_mutex> lock(g_instance_lock);
+  VERIFY_INTERFACE_OR_RETURN();
+  VLOG(1) << "Adapter state changed: " << BtStateText(state);
+  FOR_EACH_BLUETOOTH_OBSERVER(AdapterStateChangedCallback(state));
+}
+
+void AdapterPropertiesCallback(bt_status_t status,
+                               int num_properties,
+                               bt_property_t* properties) {
+  shared_lock<shared_timed_mutex> lock(g_instance_lock);
+  VERIFY_INTERFACE_OR_RETURN();
+  VLOG(1) << "Adapter properties changed - status: " << BtStatusText(status)
+          << ", num_properties: " << num_properties;
+  FOR_EACH_BLUETOOTH_OBSERVER(
+      AdapterPropertiesCallback(status, num_properties, properties));
+}
+
+void RemoteDevicePropertiesCallback(bt_status_t status,
+                               bt_bdaddr_t *remote_bd_addr,
+                               int num_properties,
+                               bt_property_t* properties) {
+  shared_lock<shared_timed_mutex> lock(g_instance_lock);
+  VERIFY_INTERFACE_OR_RETURN();
+  VLOG(1) << " Remote device properties changed - status: " << BtStatusText(status)
+          << " - BD_ADDR: " << BtAddrString(remote_bd_addr)
+          << ", num_properties: " << num_properties;
+  FOR_EACH_BLUETOOTH_OBSERVER(
+      RemoteDevicePropertiesCallback(status, remote_bd_addr, num_properties,
+                                     properties));
+}
+
+void DiscoveryStateChangedCallback(bt_discovery_state_t state) {
+  shared_lock<shared_timed_mutex> lock(g_instance_lock);
+  VERIFY_INTERFACE_OR_RETURN();
+  VLOG(1) << "Discovery state changed - state: " << BtDiscoveryStateText(state);
+  FOR_EACH_BLUETOOTH_OBSERVER(DiscoveryStateChangedCallback(state));
+}
+
+void PinRequestCallback(bt_bdaddr_t *remote_bd_addr, bt_bdname_t *bd_name,
+    uint32_t cod, bool min_16_digit) {
+  shared_lock<shared_timed_mutex> lock(g_instance_lock);
+  VERIFY_INTERFACE_OR_RETURN();
+  VLOG(2) << __func__
+          << " - remote_bd_addr: " << remote_bd_addr
+          << " - bd_name: " << bd_name
+          << " - cod: " << cod
+          << " - min_16_digit: " << min_16_digit;
+  FOR_EACH_BLUETOOTH_OBSERVER(PinRequestCallback(remote_bd_addr, bd_name, cod, min_16_digit));
+}
+
+void SSPRequestCallback(bt_bdaddr_t *remote_bd_addr,
+    bt_bdname_t *bd_name, uint32_t cod, bt_ssp_variant_t pairing_variant, uint32_t pass_key) {
+  shared_lock<shared_timed_mutex> lock(g_instance_lock);
+  VERIFY_INTERFACE_OR_RETURN();
+  VLOG(2) << __func__
+          << " - remote_bd_addr: " << remote_bd_addr
+          << " - bd_name: " << bd_name
+          << " - cod: " << cod
+          << " - pairing_variant: " << pairing_variant;
+  FOR_EACH_BLUETOOTH_OBSERVER(SSPRequestCallback(remote_bd_addr, bd_name, cod,
+      pairing_variant, pass_key));
+}
+
+void BondStateChangedCallback(
+    bt_status_t status,
+    bt_bdaddr_t *remote_bd_addr,
+    bt_bond_state_t state) {
+  shared_lock<shared_timed_mutex> lock(g_instance_lock);
+  VERIFY_INTERFACE_OR_RETURN();
+  VLOG(2) << __func__
+          << " - remote_bd_addr: " << BtAddrString(remote_bd_addr)
+          << " - status: " << status
+          << " - state: " << state;
+  FOR_EACH_BLUETOOTH_OBSERVER(BondStateChangedCallback(status, remote_bd_addr, state));
+}
+
+void AclStateChangedCallback(bt_status_t status,
+                             bt_bdaddr_t *remote_bd_addr,
+                             bt_acl_state_t state) {
+  shared_lock<shared_timed_mutex> lock(g_instance_lock);
+  VERIFY_INTERFACE_OR_RETURN();
+  CHECK(remote_bd_addr);
+  VLOG(1) << "Remote device ACL state changed - status: "
+          << BtStatusText(status)
+          << " - BD_ADDR: " << BtAddrString(remote_bd_addr)
+          << " - state: "
+          << ((state == BT_ACL_STATE_CONNECTED) ? "CONNECTED" : "DISCONNECTED");
+  FOR_EACH_BLUETOOTH_OBSERVER(
+      AclStateChangedCallback(status, *remote_bd_addr, state));
+}
+
+void ThreadEventCallback(bt_cb_thread_evt evt) {
+  VLOG(1) << "ThreadEventCallback" << BtEventText(evt);
+
+  // TODO(armansito): This callback is completely useless to us but btif borks
+  // out if this is not set. Consider making this optional.
+}
+
+bool SetWakeAlarmCallout(uint64_t /* delay_millis */,
+                         bool /* should_wake */,
+                         alarm_cb /* cb */,
+                         void* /* data */) {
+  // TODO(armansito): According to sharvil@, this interface doesn't even need to
+  // exist and can be done entirely from within osi by interfacing directly with
+  // the kernel. Remove these stubs once that's fixed. (See http://b/23390297)
+  return false;
+}
+
+int AcquireWakeLockCallout(const char* /* lock_name */) {
+  // TODO(armansito): According to sharvil@, this interface doesn't even need to
+  // exist and can be done entirely from within osi by interfacing directly with
+  // the kernel. Remove these stubs once that's fixed. (See http://b/23390297)
+  // Lie here and return success so that enabling and disabling the controller
+  // works before this is properly implemented.
+  return BT_STATUS_SUCCESS;
+}
+
+int ReleaseWakeLockCallout(const char* /* lock_name */) {
+  // TODO(armansito): According to sharvil@, this interface doesn't even need to
+  // exist and can be done entirely from within osi by interfacing directly with
+  // the kernel. Remove these stubs once that's fixed. (See http://b/23390297)
+  // Lie here and return success so that enabling and disabling the controller
+  // works before this is properly implemented.
+  return BT_STATUS_SUCCESS;
+}
+
+// The HAL Bluetooth DM callbacks.
+bt_callbacks_t bt_callbacks = {
+  sizeof(bt_callbacks_t),
+  AdapterStateChangedCallback,
+  AdapterPropertiesCallback,
+  RemoteDevicePropertiesCallback,
+  nullptr, /* device_found_cb */
+  DiscoveryStateChangedCallback,
+  PinRequestCallback,
+  SSPRequestCallback,
+  BondStateChangedCallback,
+  AclStateChangedCallback,
+  ThreadEventCallback,
+  nullptr, /* dut_mode_recv_cb */
+  nullptr, /* le_test_mode_cb */
+  nullptr  /* energy_info_cb */
+};
+
+bt_os_callouts_t bt_os_callouts = {
+  sizeof(bt_os_callouts_t),
+  SetWakeAlarmCallout,
+  AcquireWakeLockCallout,
+  ReleaseWakeLockCallout
+};
+
+}  // namespace
+
+// BluetoothInterface implementation for production.
+class BluetoothInterfaceImpl : public BluetoothInterface {
+ public:
+  BluetoothInterfaceImpl()
+      : hal_iface_(nullptr),
+        hal_adapter_(nullptr) {
+  }
+
+  ~BluetoothInterfaceImpl() override {
+    if (hal_iface_)
+        hal_iface_->cleanup();
+  }
+
+  // BluetoothInterface overrides.
+  void AddObserver(Observer* observer) override {
+    shared_lock<shared_timed_mutex> lock(g_instance_lock);
+    observers_.AddObserver(observer);
+  }
+
+  void RemoveObserver(Observer* observer) override {
+    shared_lock<shared_timed_mutex> lock(g_instance_lock);
+    observers_.RemoveObserver(observer);
+  }
+
+  const bt_interface_t* GetHALInterface() const override {
+    return hal_iface_;
+  }
+
+  const bluetooth_device_t* GetHALAdapter() const override {
+    return hal_adapter_;
+  }
+
+  // Initialize the interface. This loads the shared Bluetooth library and sets
+  // up the callbacks.
+  bool Initialize() {
+    // Load the Bluetooth shared library module.
+    const hw_module_t* module;
+    int status = hal_util_load_bt_library(&module);
+    if (status) {
+      LOG(ERROR) << "Failed to load Bluetooth library: " << status;
+      return false;
+    }
+
+    // Open the Bluetooth adapter.
+    hw_device_t* device;
+    status = module->methods->open(module, BT_HARDWARE_RTK_MODULE_ID, &device);
+    if (status) {
+      LOG(ERROR) << "Failed to open the Bluetooth module";
+      return false;
+    }
+
+    hal_adapter_ = reinterpret_cast<bluetooth_device_t*>(device);
+    hal_iface_ = hal_adapter_->get_bluetooth_interface();
+
+    // Initialize the Bluetooth interface. Set up the adapter (Bluetooth DM) API
+    // callbacks.
+    status = hal_iface_->init(&bt_callbacks);
+    if (status != BT_STATUS_SUCCESS) {
+      LOG(ERROR) << "Failed to initialize Bluetooth stack";
+      return false;
+    }
+
+    status = hal_iface_->set_os_callouts(&bt_os_callouts);
+    if (status != BT_STATUS_SUCCESS) {
+      LOG(ERROR) << "Failed to set up Bluetooth OS callouts";
+      return false;
+    }
+
+    return true;
+  }
+
+  base::ObserverList<Observer>* observers() { return &observers_; }
+
+ private:
+  // List of observers that are interested in notifications from us. We're not
+  // using a base::ObserverListThreadSafe, which it posts observer events
+  // automatically on the origin threads, as we want to avoid that overhead and
+  // simply forward the events to the upper layer.
+  base::ObserverList<Observer> observers_;
+
+  // The HAL handle obtained from the shared library. We hold a weak reference
+  // to this since the actual data resides in the shared Bluetooth library.
+  const bt_interface_t* hal_iface_;
+
+  // The HAL handle that represents the underlying Bluetooth adapter. We hold a
+  // weak reference to this since the actual data resides in the shared
+  // Bluetooth library.
+  const bluetooth_device_t* hal_adapter_;
+
+  DISALLOW_COPY_AND_ASSIGN(BluetoothInterfaceImpl);
+};
+
+namespace {
+
+// Helper for obtaining the observer list from the global instance. This
+// function is NOT thread safe.
+base::ObserverList<BluetoothInterface::Observer>* GetObservers() {
+  CHECK(g_bluetooth_interface);
+  return static_cast<BluetoothInterfaceImpl*>(
+      g_bluetooth_interface)->observers();
+}
+
+}  // namespace
+
+// Default observer implementations. These are provided so that the methods
+// themselves are optional.
+void BluetoothInterface::Observer::AdapterStateChangedCallback(
+    bt_state_t /* state*/) {
+  // Do nothing.
+}
+
+void BluetoothInterface::Observer::AdapterPropertiesCallback(
+    bt_status_t /* status */,
+    int /* num_properties */,
+    bt_property_t* /* properties */) {
+  // Do nothing.
+}
+
+void BluetoothInterface::Observer::RemoteDevicePropertiesCallback(
+    bt_status_t /* status */,
+    bt_bdaddr_t* /* remote_bd_addr */,
+    int /* num_properties */,
+    bt_property_t* /* properties */) {
+  // Do nothing.
+}
+
+void BluetoothInterface::Observer::DiscoveryStateChangedCallback(
+    bt_discovery_state_t /* state */) {
+  // Do nothing.
+}
+
+void BluetoothInterface::Observer::PinRequestCallback(
+    bt_bdaddr_t *remote_bd_addr,
+    bt_bdname_t *bd_name,
+    uint32_t cod,
+    bool min_16_digit) {
+  // Do nothing.
+}
+
+void BluetoothInterface::Observer::SSPRequestCallback(
+    bt_bdaddr_t *remote_bd_addr,
+    bt_bdname_t *bd_name,
+    uint32_t cod,
+    bt_ssp_variant_t pairing_variant,
+    uint32_t pass_key) {
+  // Do nothing.
+}
+
+void BluetoothInterface::Observer::BondStateChangedCallback(
+    bt_status_t status,
+    bt_bdaddr_t *remote_bd_addr,
+    bt_bond_state_t state) {
+  // Do nothing.
+}
+
+void BluetoothInterface::Observer::AclStateChangedCallback(
+    bt_status_t /* status */,
+    const bt_bdaddr_t& /* remote_bdaddr */,
+    bt_acl_state_t /* state */) {
+  // Do nothing.
+}
+
+// static
+bool BluetoothInterface::Initialize() {
+  unique_lock<shared_timed_mutex> lock(g_instance_lock);
+  CHECK(!g_bluetooth_interface);
+
+  std::unique_ptr<BluetoothInterfaceImpl> impl(new BluetoothInterfaceImpl());
+  if (!impl->Initialize()) {
+    LOG(ERROR) << "Failed to initialize BluetoothInterface";
+    return false;
+  }
+
+  g_bluetooth_interface = impl.release();
+
+  return true;
+}
+
+// static
+void BluetoothInterface::CleanUp() {
+  unique_lock<shared_timed_mutex> lock(g_instance_lock);
+  CHECK(g_bluetooth_interface);
+
+  delete g_bluetooth_interface;
+  g_bluetooth_interface = nullptr;
+}
+
+// static
+bool BluetoothInterface::IsInitialized() {
+  shared_lock<shared_timed_mutex> lock(g_instance_lock);
+
+  return g_bluetooth_interface != nullptr;
+}
+
+// static
+BluetoothInterface* BluetoothInterface::Get() {
+  shared_lock<shared_timed_mutex> lock(g_instance_lock);
+  CHECK(g_bluetooth_interface);
+  return g_bluetooth_interface;
+}
+
+// static
+void BluetoothInterface::InitializeForTesting(
+    BluetoothInterface* test_instance) {
+  unique_lock<shared_timed_mutex> lock(g_instance_lock);
+  CHECK(test_instance);
+  CHECK(!g_bluetooth_interface);
+
+  g_bluetooth_interface = test_instance;
+}
+
+}  // namespace hal
+}  // namespace bluetooth
diff --git a/rtkbt/code/bt/service/hal/bluetooth_interface.h b/rtkbt/code/bt/service/hal/bluetooth_interface.h
new file mode 100755
index 0000000..34e1897
--- /dev/null
+++ b/rtkbt/code/bt/service/hal/bluetooth_interface.h
@@ -0,0 +1,127 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#pragma once
+
+#include <base/macros.h>
+#include <hardware/bluetooth.h>
+
+namespace bluetooth {
+namespace hal {
+
+// This class represents the HAL Bluetooth adapter interface, wrapping around
+// the underlying bt_interface_t structure, its methods, and callbacks. A single
+// instance of this class exists per application and it allows multiple classes
+// to interface with the global HAL interface by multiplexing callbacks among
+// registered clients.
+//
+// This is declared as an abstract interface so that a fake implementation can
+// be injected for testing the upper layer.
+//
+// TODO: (expose callback types directly but via redirection) methods for
+// initialize, clean up, and set for testing.
+class BluetoothInterface {
+ public:
+  // The standard Bluetooth adapter management callback interface. The HAL
+  // interface doesn't allow registering "user data" that carries context beyond
+  // the callback parameters, forcing implementations to deal with global
+  // variables. The Observer interface is to redirect these events to interested
+  // parties in an object-oriented manner.
+  //
+  // TODO(armansito): We should fix this in the HAL.
+  class Observer {
+   public:
+    virtual ~Observer() = default;
+
+    // All of the events below correspond to callbacks defined in
+    // "bt_callbacks_t" in the HAL API definitions.
+
+    virtual void AdapterStateChangedCallback(bt_state_t state);
+    virtual void AdapterPropertiesCallback(bt_status_t status,
+                                           int num_properties,
+                                           bt_property_t* properties);
+    virtual void RemoteDevicePropertiesCallback(bt_status_t status,
+                                                bt_bdaddr_t *remote_bd_addr,
+                                                int num_properties,
+                                                bt_property_t* properties);
+    virtual void DiscoveryStateChangedCallback(bt_discovery_state_t state);
+    virtual void PinRequestCallback(bt_bdaddr_t *remote_bd_addr,
+                                    bt_bdname_t *bd_name,
+                                    uint32_t cod,
+                                    bool min_16_digit);
+    virtual void SSPRequestCallback(bt_bdaddr_t *remote_bd_addr,
+                                    bt_bdname_t *bd_name,
+                                    uint32_t cod,
+                                    bt_ssp_variant_t pairing_variant,
+                                    uint32_t pass_key);
+    virtual void BondStateChangedCallback(bt_status_t status,
+                                          bt_bdaddr_t *remote_bd_addr,
+                                          bt_bond_state_t state);
+    virtual void AclStateChangedCallback(bt_status_t status,
+                                         const bt_bdaddr_t& remote_bdaddr,
+                                         bt_acl_state_t state);
+
+    // TODO(armansito): Complete the list of callbacks.
+  };
+
+  // Initialize and clean up the BluetoothInterface singleton. Returns false if
+  // the underlying HAL interface failed to initialize, and true on success.
+  static bool Initialize();
+
+  // Shuts down and cleans up the interface. CleanUp must be called on the same
+  // thread that called Initialize.
+  static void CleanUp();
+
+  // Returns true if the interface was initialized and a global singleton has
+  // been created.
+  static bool IsInitialized();
+
+  // Initialize for testing. Use this to inject a test version of
+  // BlueoothInterface. To be used from unit tests only.
+  static void InitializeForTesting(BluetoothInterface* test_instance);
+
+  // Returns the BluetoothInterface singleton. If the interface has not been
+  // initialized, returns nullptr.
+  static BluetoothInterface* Get();
+
+  // Add or remove an observer that is interested in notifications from us.
+  virtual void AddObserver(Observer* observer) = 0;
+  virtual void RemoveObserver(Observer* observer) = 0;
+
+  // The HAL module pointer that represents the standard Bluetooth adapter
+  // management interface. This is implemented in and provided by the shared
+  // Bluetooth library, so this isn't owned by us.
+  //
+  // Upper layers can make bt_interface_t API calls through this structure.
+  // However, DO NOT call the "init" function as this is called and managed by
+  // us. The behavior is undefined if "init" is called directly by upper layers.
+  virtual const bt_interface_t* GetHALInterface() const = 0;
+
+  // The HAL module pointer that represents the underlying Bluetooth adapter.
+  // This is implemented in and provided by the shared Bluetooth library, so
+  // this isn't owned by us.
+  virtual const bluetooth_device_t* GetHALAdapter() const = 0;
+
+ protected:
+  BluetoothInterface() = default;
+  virtual ~BluetoothInterface() = default;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(BluetoothInterface);
+};
+
+}  // namespace hal
+}  // namespace bluetooth
diff --git a/rtkbt/code/bt/service/hal/fake_bluetooth_gatt_interface.cpp b/rtkbt/code/bt/service/hal/fake_bluetooth_gatt_interface.cpp
new file mode 100755
index 0000000..d16cda2
--- /dev/null
+++ b/rtkbt/code/bt/service/hal/fake_bluetooth_gatt_interface.cpp
@@ -0,0 +1,416 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#include "service/hal/fake_bluetooth_gatt_interface.h"
+
+namespace bluetooth {
+namespace hal {
+namespace {
+
+// The global test handler instances. We have to have globals since the HAL
+// interface methods all have to be global and their signatures don't allow us
+// to pass in user_data.
+std::shared_ptr<FakeBluetoothGattInterface::TestClientHandler> g_client_handler;
+std::shared_ptr<FakeBluetoothGattInterface::TestServerHandler> g_server_handler;
+
+bt_status_t FakeRegisterClient(bt_uuid_t* app_uuid) {
+  if (g_client_handler)
+    return g_client_handler->RegisterClient(app_uuid);
+
+  return BT_STATUS_FAIL;
+}
+
+bt_status_t FakeUnregisterClient(int client_if) {
+  if (g_client_handler)
+    return g_client_handler->UnregisterClient(client_if);
+
+  return BT_STATUS_FAIL;
+}
+
+bt_status_t FakeScan(bool start) {
+  if (g_client_handler)
+    return g_client_handler->Scan(start);
+
+  return BT_STATUS_FAIL;
+}
+
+bt_status_t FakeConnect(int client_if, const bt_bdaddr_t *bd_addr,
+                        bool is_direct, int transport) {
+  if (g_client_handler)
+    return g_client_handler->Connect(client_if, bd_addr, is_direct, transport);
+
+  return BT_STATUS_FAIL;
+}
+
+bt_status_t FakeDisconnect(int client_if, const bt_bdaddr_t *bd_addr,
+                           int conn_id) {
+  if (g_client_handler)
+    return g_client_handler->Disconnect(client_if, bd_addr, conn_id);
+
+  return BT_STATUS_FAIL;
+}
+
+bt_status_t FakeMultiAdvEnable(
+    int client_if, int min_interval, int max_interval, int adv_type,
+    int chnl_map, int tx_power, int timeout_s) {
+  if (g_client_handler)
+    return g_client_handler->MultiAdvEnable(client_if, min_interval, max_interval,
+                                     adv_type, chnl_map, tx_power, timeout_s);
+
+  return BT_STATUS_FAIL;
+}
+
+bt_status_t FakeMultiAdvSetInstData(
+    int client_if, bool set_scan_rsp, bool include_name,
+    bool incl_txpower, int appearance,
+    int manufacturer_len, char* manufacturer_data,
+    int service_data_len, char* service_data,
+    int service_uuid_len, char* service_uuid) {
+  if (g_client_handler)
+    return g_client_handler->MultiAdvSetInstData(
+        client_if, set_scan_rsp, include_name,
+        incl_txpower, appearance,
+        manufacturer_len, manufacturer_data,
+        service_data_len, service_data,
+        service_uuid_len, service_uuid);
+
+  return BT_STATUS_FAIL;
+}
+
+bt_status_t FakeMultiAdvDisable(int client_if) {
+  if (g_client_handler)
+    return g_client_handler->MultiAdvDisable(client_if);
+
+  return BT_STATUS_FAIL;
+}
+
+bt_status_t FakeRegisterServer(bt_uuid_t* app_uuid) {
+  if (g_server_handler)
+    return g_server_handler->RegisterServer(app_uuid);
+
+  return BT_STATUS_FAIL;
+}
+
+bt_status_t FakeUnregisterServer(int server_if) {
+  if (g_server_handler)
+    return g_server_handler->UnregisterServer(server_if);
+
+  return BT_STATUS_FAIL;
+}
+
+bt_status_t FakeAddService(
+    int server_if, btgatt_srvc_id_t* srvc_id, int num_handles) {
+  if (g_server_handler)
+    return g_server_handler->AddService(server_if, srvc_id, num_handles);
+
+  return BT_STATUS_FAIL;
+}
+
+bt_status_t FakeAddCharacteristic(int server_if, int srvc_handle,
+                                  bt_uuid_t *uuid,
+                                  int properties, int permissions) {
+  if (g_server_handler)
+    return g_server_handler->AddCharacteristic(server_if, srvc_handle, uuid,
+                                               properties, permissions);
+
+  return BT_STATUS_FAIL;
+}
+
+bt_status_t FakeAddDescriptor(int server_if, int srvc_handle,
+                              bt_uuid_t* uuid,
+                              int permissions) {
+  if (g_server_handler)
+    return g_server_handler->AddDescriptor(
+        server_if, srvc_handle, uuid, permissions);
+
+  return BT_STATUS_FAIL;
+}
+
+bt_status_t FakeStartService(
+    int server_if, int srvc_handle, int transport) {
+  if (g_server_handler)
+    return g_server_handler->StartService(server_if, srvc_handle, transport);
+
+  return BT_STATUS_FAIL;
+}
+
+bt_status_t FakeDeleteService(int server_if, int srvc_handle) {
+  if (g_server_handler)
+    return g_server_handler->DeleteService(server_if, srvc_handle);
+
+  return BT_STATUS_FAIL;
+}
+
+bt_status_t FakeSendIndication(int server_if, int attribute_handle,
+                               int conn_id, int len, int confirm,
+                               char* value) {
+  if (g_server_handler)
+    return g_server_handler->SendIndication(server_if, attribute_handle,
+                                            conn_id, len, confirm, value);
+
+  return BT_STATUS_FAIL;
+}
+
+bt_status_t FakeSendResponse(int conn_id, int trans_id, int status,
+                             btgatt_response_t* response) {
+  if (g_server_handler)
+    return g_server_handler->SendResponse(conn_id, trans_id, status, response);
+
+  return BT_STATUS_FAIL;
+}
+
+btgatt_client_interface_t fake_btgattc_iface = {
+  FakeRegisterClient,
+  FakeUnregisterClient,
+  FakeScan,
+  FakeConnect,
+  FakeDisconnect,
+  nullptr,  // listen
+  nullptr,  // refresh
+  nullptr,  // search_service
+  nullptr,  // read_characteristic
+  nullptr,  // write_characteristic
+  nullptr,  // read_descriptor
+  nullptr,  // write_descriptor
+  nullptr,  // execute_write
+  nullptr,  // register_for_notification
+  nullptr,  // deregister_for_notification
+  nullptr,  // read_remote_rssi
+  nullptr,  // scan_filter_param_setup
+  nullptr,  // scan_filter_add_remove
+  nullptr,  // scan_filter_clear
+  nullptr,  // scan_filter_enable
+  nullptr,  // get_device_type
+  nullptr,  // set_adv_data
+  nullptr,  // configure_mtu
+  nullptr,  // conn_parameter_update
+  nullptr,  // set_scan_parameters
+  FakeMultiAdvEnable,
+  nullptr,  // multi_adv_update
+  FakeMultiAdvSetInstData,
+  FakeMultiAdvDisable,
+  nullptr,  // batchscan_cfg_storate
+  nullptr,  // batchscan_enb_batch_scan
+  nullptr,  // batchscan_dis_batch_scan
+  nullptr,  // batchscan_read_reports
+  nullptr,  // test_command
+  nullptr,  // get_gatt_db
+};
+
+btgatt_server_interface_t fake_btgatts_iface = {
+  FakeRegisterServer,
+  FakeUnregisterServer,
+  nullptr,  // connect
+  nullptr,  // disconnect
+  FakeAddService,
+  nullptr,  // add_included_service
+  FakeAddCharacteristic,
+  FakeAddDescriptor,
+  FakeStartService,
+  nullptr,  // stop_service
+  FakeDeleteService,
+  FakeSendIndication,
+  FakeSendResponse,
+};
+
+}  // namespace
+
+FakeBluetoothGattInterface::FakeBluetoothGattInterface(
+    std::shared_ptr<TestClientHandler> client_handler,
+    std::shared_ptr<TestServerHandler> server_handler)
+    : client_handler_(client_handler) {
+  CHECK(!g_client_handler);
+  CHECK(!g_server_handler);
+
+  // We allow passing NULL. In this case all calls we fail by default.
+  if (client_handler)
+    g_client_handler = client_handler;
+
+  if (server_handler)
+    g_server_handler = server_handler;
+}
+
+FakeBluetoothGattInterface::~FakeBluetoothGattInterface() {
+  if (g_client_handler)
+    g_client_handler = nullptr;
+
+  if (g_server_handler)
+    g_server_handler = nullptr;
+}
+
+// The methods below can be used to notify observers with certain events and
+// given parameters.
+void FakeBluetoothGattInterface::NotifyRegisterClientCallback(
+    int status, int client_if,
+    const bt_uuid_t& app_uuid) {
+  FOR_EACH_OBSERVER(ClientObserver, client_observers_,
+                    RegisterClientCallback(this, status, client_if, app_uuid));
+}
+
+void FakeBluetoothGattInterface::NotifyConnectCallback(
+    int conn_id, int status, int client_if, const bt_bdaddr_t& bda) {
+  FOR_EACH_OBSERVER(ClientObserver, client_observers_,
+                    ConnectCallback(this, conn_id, status, client_if, bda));
+}
+
+void FakeBluetoothGattInterface::NotifyDisconnectCallback(
+    int conn_id, int status, int client_if, const bt_bdaddr_t& bda) {
+  FOR_EACH_OBSERVER(ClientObserver, client_observers_,
+                    DisconnectCallback(this, conn_id, status, client_if, bda));
+}
+
+void FakeBluetoothGattInterface::NotifyScanResultCallback(
+    const bt_bdaddr_t& bda, int rssi, uint8_t* adv_data) {
+  FOR_EACH_OBSERVER(ClientObserver, client_observers_,
+                    ScanResultCallback(this, bda, rssi, adv_data));
+}
+
+void FakeBluetoothGattInterface::NotifyMultiAdvEnableCallback(
+    int client_if, int status) {
+  FOR_EACH_OBSERVER(ClientObserver, client_observers_,
+                    MultiAdvEnableCallback(this, client_if, status));
+}
+
+void FakeBluetoothGattInterface::NotifyMultiAdvDataCallback(
+    int client_if, int status) {
+  FOR_EACH_OBSERVER(ClientObserver, client_observers_,
+                    MultiAdvDataCallback(this, client_if, status));
+}
+
+void FakeBluetoothGattInterface::NotifyMultiAdvDisableCallback(
+    int client_if, int status) {
+  FOR_EACH_OBSERVER(ClientObserver, client_observers_,
+                    MultiAdvDisableCallback(this, client_if, status));
+}
+
+void FakeBluetoothGattInterface::NotifyRegisterServerCallback(
+    int status, int server_if,
+    const bt_uuid_t& app_uuid) {
+  FOR_EACH_OBSERVER(ServerObserver, server_observers_,
+                    RegisterServerCallback(this, status, server_if, app_uuid));
+}
+
+void FakeBluetoothGattInterface::NotifyServerConnectionCallback(
+    int conn_id, int server_if, int connected, const bt_bdaddr_t& bda) {
+  FOR_EACH_OBSERVER(
+      ServerObserver, server_observers_,
+      ConnectionCallback(this, conn_id, server_if, connected, bda));
+}
+
+void FakeBluetoothGattInterface::NotifyServiceAddedCallback(
+    int status, int server_if,
+    const btgatt_srvc_id_t& srvc_id,
+    int srvc_handle) {
+  FOR_EACH_OBSERVER(
+      ServerObserver, server_observers_,
+      ServiceAddedCallback(this, status, server_if, srvc_id, srvc_handle));
+}
+
+void FakeBluetoothGattInterface::NotifyCharacteristicAddedCallback(
+    int status, int server_if,
+    const bt_uuid_t& uuid,
+    int srvc_handle, int char_handle) {
+  FOR_EACH_OBSERVER(
+      ServerObserver, server_observers_,
+      CharacteristicAddedCallback(
+          this, status, server_if, uuid, srvc_handle, char_handle));
+}
+
+void FakeBluetoothGattInterface::NotifyDescriptorAddedCallback(
+    int status, int server_if,
+    const bt_uuid_t& uuid,
+    int srvc_handle, int desc_handle) {
+  FOR_EACH_OBSERVER(
+      ServerObserver, server_observers_,
+      DescriptorAddedCallback(
+          this, status, server_if, uuid, srvc_handle, desc_handle));
+}
+
+void FakeBluetoothGattInterface::NotifyServiceStartedCallback(
+    int status, int server_if, int srvc_handle) {
+  FOR_EACH_OBSERVER(
+      ServerObserver, server_observers_,
+      ServiceStartedCallback(this, status, server_if, srvc_handle));
+}
+
+void FakeBluetoothGattInterface::NotifyRequestReadCallback(
+    int conn_id, int trans_id, const bt_bdaddr_t& bda, int attr_handle,
+    int offset, bool is_long) {
+  FOR_EACH_OBSERVER(
+      ServerObserver, server_observers_,
+      RequestReadCallback(
+          this, conn_id, trans_id, bda, attr_handle, offset, is_long));
+}
+
+void FakeBluetoothGattInterface::NotifyRequestWriteCallback(
+    int conn_id, int trans_id,
+    const bt_bdaddr_t& bda, int attr_handle,
+    int offset, int length,
+    bool need_rsp, bool is_prep, uint8_t* value) {
+  FOR_EACH_OBSERVER(
+      ServerObserver, server_observers_,
+      RequestWriteCallback(
+          this, conn_id, trans_id, bda, attr_handle, offset, length, need_rsp,
+          is_prep, value));
+}
+
+void FakeBluetoothGattInterface::NotifyRequestExecWriteCallback(
+    int conn_id, int trans_id, const bt_bdaddr_t& bda, int exec_write) {
+  FOR_EACH_OBSERVER(
+      ServerObserver, server_observers_,
+      RequestExecWriteCallback(this, conn_id, trans_id, bda, exec_write));
+}
+
+void FakeBluetoothGattInterface::NotifyIndicationSentCallback(
+    int conn_id, int status) {
+  FOR_EACH_OBSERVER(ServerObserver, server_observers_,
+                    IndicationSentCallback(this, conn_id, status));
+}
+
+void FakeBluetoothGattInterface::AddClientObserver(ClientObserver* observer) {
+  CHECK(observer);
+  client_observers_.AddObserver(observer);
+}
+
+void FakeBluetoothGattInterface::RemoveClientObserver(
+    ClientObserver* observer) {
+  CHECK(observer);
+  client_observers_.RemoveObserver(observer);
+}
+
+void FakeBluetoothGattInterface::AddServerObserver(ServerObserver* observer) {
+  CHECK(observer);
+  server_observers_.AddObserver(observer);
+}
+
+void FakeBluetoothGattInterface::RemoveServerObserver(
+    ServerObserver* observer) {
+  CHECK(observer);
+  server_observers_.RemoveObserver(observer);
+}
+
+const btgatt_client_interface_t*
+FakeBluetoothGattInterface::GetClientHALInterface() const {
+  return &fake_btgattc_iface;
+}
+
+const btgatt_server_interface_t*
+FakeBluetoothGattInterface::GetServerHALInterface() const {
+  return &fake_btgatts_iface;
+}
+
+}  // namespace hal
+}  // namespace bluetooth
diff --git a/rtkbt/code/bt/service/hal/fake_bluetooth_gatt_interface.h b/rtkbt/code/bt/service/hal/fake_bluetooth_gatt_interface.h
new file mode 100755
index 0000000..7f6c1a6
--- /dev/null
+++ b/rtkbt/code/bt/service/hal/fake_bluetooth_gatt_interface.h
@@ -0,0 +1,153 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#pragma once
+
+#include <base/macros.h>
+#include <base/observer_list.h>
+
+#include "service/hal/bluetooth_gatt_interface.h"
+
+namespace bluetooth {
+namespace hal {
+
+class FakeBluetoothGattInterface : public BluetoothGattInterface {
+ public:
+  // Handles HAL Bluetooth GATT client API calls for testing. Test code can
+  // provide a fake or mock implementation of this and all calls will be routed
+  // to it.
+  class TestClientHandler {
+   public:
+    virtual ~TestClientHandler() = default;
+
+    virtual bt_status_t RegisterClient(bt_uuid_t* app_uuid) = 0;
+    virtual bt_status_t UnregisterClient(int client_if) = 0;
+
+    virtual bt_status_t Scan(bool start) = 0;
+    virtual bt_status_t Connect(int client_if, const bt_bdaddr_t *bd_addr,
+                                bool is_direct, int transport) = 0;
+    virtual bt_status_t Disconnect(int client_if, const bt_bdaddr_t *bd_addr,
+                                   int conn_id) = 0;
+
+    virtual bt_status_t MultiAdvEnable(
+        int client_if, int min_interval, int max_interval, int adv_type,
+        int chnl_map, int tx_power, int timeout_s) = 0;
+    virtual bt_status_t MultiAdvSetInstData(
+        int client_if, bool set_scan_rsp, bool include_name,
+        bool incl_txpower, int appearance,
+        int manufacturer_len, char* manufacturer_data,
+        int service_data_len, char* service_data,
+        int service_uuid_len, char* service_uuid) = 0;
+    virtual bt_status_t MultiAdvDisable(int client_if) = 0;
+  };
+
+  // Handles HAL Bluetooth GATT server API calls for testing. Test code can
+  // provide a fake or mock implementation of this and all calls will be routed
+  // to it.
+  class TestServerHandler {
+   public:
+    virtual ~TestServerHandler() = default;
+
+    virtual bt_status_t RegisterServer(bt_uuid_t* app_uuid) = 0;
+    virtual bt_status_t UnregisterServer(int server_if) = 0;
+    virtual bt_status_t AddService(
+        int server_if, btgatt_srvc_id_t* srvc_id, int num_handles) = 0;
+    virtual bt_status_t AddCharacteristic(int server_if, int srvc_handle,
+                                          bt_uuid_t *uuid,
+                                          int properties, int permissions) = 0;
+    virtual bt_status_t AddDescriptor(int server_if, int srvc_handle,
+                                      bt_uuid_t* uuid,
+                                      int permissions) = 0;
+    virtual bt_status_t StartService(
+        int server_if, int srvc_handle, int transport) = 0;
+    virtual bt_status_t DeleteService(int server_if, int srvc_handle) = 0;
+    virtual bt_status_t SendIndication(int server_if, int attribute_handle,
+                                       int conn_id, int len, int confirm,
+                                       char* value) = 0;
+    virtual bt_status_t SendResponse(int conn_id, int trans_id, int status,
+                                     btgatt_response_t* response) = 0;
+  };
+
+  // Constructs the fake with the given handlers. Implementations can
+  // provide their own handlers or simply pass "nullptr" for the default
+  // behavior in which BT_STATUS_FAIL will be returned from all calls.
+  FakeBluetoothGattInterface(std::shared_ptr<TestClientHandler> client_handler,
+                             std::shared_ptr<TestServerHandler> server_handler);
+  ~FakeBluetoothGattInterface();
+
+  // The methods below can be used to notify observers with certain events and
+  // given parameters.
+
+  // Client callbacks:
+  void NotifyRegisterClientCallback(int status, int client_if,
+                                    const bt_uuid_t& app_uuid);
+  void NotifyConnectCallback(int conn_id, int status, int client_if,
+                             const bt_bdaddr_t& bda);
+  void NotifyDisconnectCallback(int conn_id, int status, int client_if,
+                                const bt_bdaddr_t& bda);
+  void NotifyScanResultCallback(const bt_bdaddr_t& bda, int rssi,
+                                uint8_t* adv_data);
+  void NotifyMultiAdvEnableCallback(int client_if, int status);
+  void NotifyMultiAdvDataCallback(int client_if, int status);
+  void NotifyMultiAdvDisableCallback(int client_if, int status);
+
+  // Server callbacks:
+  void NotifyRegisterServerCallback(int status, int server_if,
+                                    const bt_uuid_t& app_uuid);
+  void NotifyServerConnectionCallback(int conn_id, int server_if,
+                                      int connected,
+                                      const bt_bdaddr_t& bda);
+  void NotifyServiceAddedCallback(int status, int server_if,
+                                  const btgatt_srvc_id_t& srvc_id,
+                                  int srvc_handle);
+  void NotifyCharacteristicAddedCallback(int status, int server_if,
+                                         const bt_uuid_t& uuid,
+                                         int srvc_handle, int char_handle);
+  void NotifyDescriptorAddedCallback(int status, int server_if,
+                                     const bt_uuid_t& uuid,
+                                     int srvc_handle, int desc_handle);
+  void NotifyServiceStartedCallback(int status, int server_if, int srvc_handle);
+  void NotifyRequestReadCallback(int conn_id, int trans_id,
+                                 const bt_bdaddr_t& bda, int attr_handle,
+                                 int offset, bool is_long);
+  void NotifyRequestWriteCallback(int conn_id, int trans_id,
+                                  const bt_bdaddr_t& bda, int attr_handle,
+                                  int offset, int length,
+                                  bool need_rsp, bool is_prep, uint8_t* value);
+  void NotifyRequestExecWriteCallback(int conn_id, int trans_id,
+                                      const bt_bdaddr_t& bda, int exec_write);
+  void NotifyIndicationSentCallback(int conn_id, int status);
+
+  // BluetoothGattInterface overrides:
+  void AddClientObserver(ClientObserver* observer) override;
+  void RemoveClientObserver(ClientObserver* observer) override;
+  void AddServerObserver(ServerObserver* observer) override;
+  void RemoveServerObserver(ServerObserver* observer) override;
+  const btgatt_client_interface_t* GetClientHALInterface() const override;
+  const btgatt_server_interface_t* GetServerHALInterface() const override;
+
+ private:
+  base::ObserverList<ClientObserver> client_observers_;
+  base::ObserverList<ServerObserver> server_observers_;
+  std::shared_ptr<TestClientHandler> client_handler_;
+  std::shared_ptr<TestServerHandler> server_handler_;
+
+
+  DISALLOW_COPY_AND_ASSIGN(FakeBluetoothGattInterface);
+};
+
+}  // namespace hal
+}  // namespace bluetooth
diff --git a/rtkbt/code/bt/service/hal/fake_bluetooth_interface.cpp b/rtkbt/code/bt/service/hal/fake_bluetooth_interface.cpp
new file mode 100755
index 0000000..5036c63
--- /dev/null
+++ b/rtkbt/code/bt/service/hal/fake_bluetooth_interface.cpp
@@ -0,0 +1,168 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#include "service/hal/fake_bluetooth_interface.h"
+
+namespace bluetooth {
+namespace hal {
+
+namespace {
+
+FakeBluetoothInterface::Manager g_hal_manager;
+
+int FakeHALEnable(bool start_restricted) {
+  return g_hal_manager.enable_succeed ? BT_STATUS_SUCCESS : BT_STATUS_FAIL;
+}
+
+int FakeHALDisable() {
+  return g_hal_manager.disable_succeed ? BT_STATUS_SUCCESS : BT_STATUS_FAIL;
+}
+
+int FakeHALGetAdapterProperties() {
+  return BT_STATUS_SUCCESS;
+}
+
+int FakeHALSetAdapterProperty(const bt_property_t* /* property */) {
+  LOG(INFO) << __func__;
+  return (g_hal_manager.set_property_succeed ? BT_STATUS_SUCCESS :
+          BT_STATUS_FAIL);
+}
+
+bt_interface_t fake_bt_iface = {
+  sizeof(bt_interface_t),
+  nullptr, /* init */
+  FakeHALEnable,
+  FakeHALDisable,
+  nullptr, /* cleanup */
+  FakeHALGetAdapterProperties,
+  nullptr, /* get_adapter_property */
+  FakeHALSetAdapterProperty,
+  nullptr, /* get_remote_device_properties */
+  nullptr, /* get_remote_device_property */
+  nullptr, /* set_remote_device_property */
+  nullptr, /* get_remote_service_record */
+  nullptr, /* get_remote_services */
+  nullptr, /* start_discovery */
+  nullptr, /* cancel_discovery */
+  nullptr, /* create_bond */
+  nullptr, /* create_bond_out_of_band */
+  nullptr, /* remove_bond */
+  nullptr, /* cancel_bond */
+  nullptr, /* get_connection_state */
+  nullptr, /* pin_reply */
+  nullptr, /* ssp_reply */
+  nullptr, /* get_profile_interface */
+  nullptr, /* dut_mode_configure */
+  nullptr, /* dut_more_send */
+  nullptr, /* le_test_mode */
+  nullptr, /* config_hci_snoop_log */
+  nullptr, /* set_os_callouts */
+  nullptr, /* read_energy_info */
+  nullptr, /* dump */
+  nullptr, /* config clear */
+  nullptr, /* interop_database_clear */
+  nullptr  /* interop_database_add */
+};
+
+}  // namespace
+
+// static
+FakeBluetoothInterface::Manager* FakeBluetoothInterface::GetManager() {
+  return &g_hal_manager;
+}
+
+FakeBluetoothInterface::Manager::Manager()
+    : enable_succeed(false),
+      disable_succeed(false),
+      set_property_succeed(false) {
+}
+
+void FakeBluetoothInterface::NotifyAdapterStateChanged(bt_state_t state) {
+  FOR_EACH_OBSERVER(Observer, observers_, AdapterStateChangedCallback(state));
+}
+
+void FakeBluetoothInterface::NotifyAdapterPropertiesChanged(
+    int num_properties,
+    bt_property_t* properties) {
+  FOR_EACH_OBSERVER(
+      Observer, observers_,
+      AdapterPropertiesCallback(BT_STATUS_SUCCESS, num_properties, properties));
+}
+
+void FakeBluetoothInterface::NotifyAdapterNamePropertyChanged(
+    const std::string& name) {
+  bt_bdname_t hal_name;
+  strncpy(reinterpret_cast<char*>(hal_name.name),
+          name.c_str(),
+          std::min(sizeof(hal_name)-1, name.length()));
+  reinterpret_cast<char*>(hal_name.name)[name.length()] = '\0';
+
+  bt_property_t property;
+  property.len = sizeof(hal_name);
+  property.val = &hal_name;
+  property.type = BT_PROPERTY_BDNAME;
+
+  NotifyAdapterPropertiesChanged(1, &property);
+}
+
+void FakeBluetoothInterface::NotifyAdapterAddressPropertyChanged(
+    const bt_bdaddr_t* address) {
+  bt_property_t property;
+  property.len = sizeof(bt_bdaddr_t);
+  property.val = (void*)address;
+  property.type = BT_PROPERTY_BDADDR;
+
+  NotifyAdapterPropertiesChanged(1, &property);
+}
+
+void FakeBluetoothInterface::NotifyAdapterLocalLeFeaturesPropertyChanged(
+      const bt_local_le_features_t* features) {
+  bt_property_t property;
+  property.len = sizeof(*features);
+  property.val = (void*)features;
+  property.type = BT_PROPERTY_LOCAL_LE_FEATURES;
+
+  NotifyAdapterPropertiesChanged(1, &property);
+}
+
+void FakeBluetoothInterface::NotifyAclStateChangedCallback(
+    bt_status_t status,
+    const bt_bdaddr_t& remote_bdaddr,
+    bt_acl_state_t state) {
+  FOR_EACH_OBSERVER(
+      Observer, observers_,
+      AclStateChangedCallback(status, remote_bdaddr, state));
+}
+
+void FakeBluetoothInterface::AddObserver(Observer* observer) {
+  observers_.AddObserver(observer);
+}
+
+void FakeBluetoothInterface::RemoveObserver(Observer* observer) {
+  observers_.RemoveObserver(observer);
+}
+
+const bt_interface_t* FakeBluetoothInterface::GetHALInterface() const {
+  return &fake_bt_iface;
+}
+
+const bluetooth_device_t* FakeBluetoothInterface::GetHALAdapter() const {
+  // TODO(armansito): Do something meaningful here to simulate test behavior.
+  return nullptr;
+}
+
+}  // namespace hal
+}  // namespace bluetooth
diff --git a/rtkbt/code/bt/service/hal/fake_bluetooth_interface.h b/rtkbt/code/bt/service/hal/fake_bluetooth_interface.h
new file mode 100755
index 0000000..553d4e0
--- /dev/null
+++ b/rtkbt/code/bt/service/hal/fake_bluetooth_interface.h
@@ -0,0 +1,75 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#include <base/macros.h>
+#include <base/observer_list.h>
+
+#include "service/hal/bluetooth_interface.h"
+
+namespace bluetooth {
+namespace hal {
+
+class FakeBluetoothInterface : public BluetoothInterface {
+ public:
+  // A Fake HAL Bluetooth interface. This is kept as a global singleton as the
+  // Bluetooth HAL doesn't support anything otherwise.
+  //
+  // TODO(armansito): Use an abstract "TestHandler" interface instead.
+  struct Manager {
+    Manager();
+    ~Manager() = default;
+
+    // Values that should be returned from bt_interface_t methods.
+    bool enable_succeed;
+    bool disable_succeed;
+    bool set_property_succeed;
+  };
+
+  // Returns the global Manager.
+  static Manager* GetManager();
+
+  FakeBluetoothInterface() = default;
+  ~FakeBluetoothInterface() override = default;
+
+  // Notifies the observers that the adapter state changed to |state|.
+  void NotifyAdapterStateChanged(bt_state_t state);
+
+  // Triggers an adapter property change event.
+  void NotifyAdapterPropertiesChanged(int num_properties,
+                                      bt_property_t* properties);
+  void NotifyAdapterNamePropertyChanged(const std::string& name);
+  void NotifyAdapterAddressPropertyChanged(const bt_bdaddr_t* address);
+  void NotifyAdapterLocalLeFeaturesPropertyChanged(
+      const bt_local_le_features_t* features);
+  void NotifyAclStateChangedCallback(
+      bt_status_t status,
+      const bt_bdaddr_t& remote_bdaddr,
+      bt_acl_state_t state);
+
+  // hal::BluetoothInterface overrides:
+  void AddObserver(Observer* observer) override;
+  void RemoveObserver(Observer* observer) override;
+  const bt_interface_t* GetHALInterface() const override;
+  const bluetooth_device_t* GetHALAdapter() const override;
+
+ private:
+  base::ObserverList<Observer> observers_;
+
+  DISALLOW_COPY_AND_ASSIGN(FakeBluetoothInterface);
+};
+
+}  // namespace hal
+}  // namespace bluetooth
diff --git a/rtkbt/code/bt/service/hal/gatt_helpers.cpp b/rtkbt/code/bt/service/hal/gatt_helpers.cpp
new file mode 100755
index 0000000..b12abb7
--- /dev/null
+++ b/rtkbt/code/bt/service/hal/gatt_helpers.cpp
@@ -0,0 +1,43 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#include "service/hal/gatt_helpers.h"
+
+namespace bluetooth {
+namespace hal {
+
+// Populates a HAL btgatt_srvc_id_t structure from the given GattIdentifier that
+// represents a service ID.
+void GetHALServiceId(const GattIdentifier& id, btgatt_srvc_id_t* hal_id) {
+  CHECK(hal_id);
+  CHECK(id.IsService());
+
+  memset(hal_id, 0, sizeof(*hal_id));
+  hal_id->is_primary = id.is_primary();
+  hal_id->id.inst_id = id.service_instance_id();
+  hal_id->id.uuid = id.service_uuid().GetBlueDroid();
+}
+
+std::unique_ptr<GattIdentifier> GetServiceIdFromHAL(
+    const btgatt_srvc_id_t& srvc_id) {
+  UUID uuid(srvc_id.id.uuid);
+
+  return GattIdentifier::CreateServiceId(
+      "", srvc_id.id.inst_id, uuid, srvc_id.is_primary);
+}
+
+}  // namespace hal
+}  // namespace bluetooth
diff --git a/rtkbt/code/bt/service/hal/gatt_helpers.h b/rtkbt/code/bt/service/hal/gatt_helpers.h
new file mode 100755
index 0000000..490c64e
--- /dev/null
+++ b/rtkbt/code/bt/service/hal/gatt_helpers.h
@@ -0,0 +1,41 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#pragma once
+
+#include <memory>
+
+#include <hardware/bluetooth.h>
+#include <hardware/bt_gatt_types.h>
+
+#include "service/common/bluetooth/gatt_identifier.h"
+
+// Some utility functions for interacting with GATT HAL interfaces.
+
+namespace bluetooth {
+namespace hal {
+
+// Populates a HAL btgatt_srvc_id_t structure from the given GattIdentifier that
+// represents a service ID.
+void GetHALServiceId(const GattIdentifier& id, btgatt_srvc_id_t* hal_id);
+
+// Populates and returns a GattIdentifier for the given HAL btgatt_srvc_id_t
+// structure. Returns nullptr for invalid input.
+std::unique_ptr<GattIdentifier> GetServiceIdFromHAL(
+    const btgatt_srvc_id_t& srvc_id);
+
+}  // namespace hal
+}  // namespace bluetooth
diff --git a/rtkbt/code/bt/service/ipc/binder/bluetooth_binder_server.cpp b/rtkbt/code/bt/service/ipc/binder/bluetooth_binder_server.cpp
new file mode 100755
index 0000000..198ccf6
--- /dev/null
+++ b/rtkbt/code/bt/service/ipc/binder/bluetooth_binder_server.cpp
@@ -0,0 +1,187 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#include "service/ipc/binder/bluetooth_binder_server.h"
+
+#include <base/logging.h>
+
+#include "service/ipc/binder/bluetooth_gatt_client_binder_server.h"
+#include "service/ipc/binder/bluetooth_gatt_server_binder_server.h"
+#include "service/ipc/binder/bluetooth_low_energy_binder_server.h"
+
+#include "service/hal/bluetooth_interface.h"
+
+using android::sp;
+
+namespace ipc {
+namespace binder {
+
+BluetoothBinderServer::BluetoothBinderServer(bluetooth::Adapter* adapter)
+    : adapter_(adapter) {
+  CHECK(adapter_);
+  adapter_->AddObserver(this);
+}
+
+BluetoothBinderServer::~BluetoothBinderServer() {
+  adapter_->RemoveObserver(this);
+}
+
+// binder::BnBluetooth overrides:
+bool BluetoothBinderServer::IsEnabled() {
+  VLOG(2) << __func__;
+  return adapter_->IsEnabled();
+}
+
+int BluetoothBinderServer::GetState() {
+  VLOG(2) << __func__;
+  return adapter_->GetState();
+}
+
+bool BluetoothBinderServer::Enable(bool start_restricted) {
+  VLOG(2) << __func__;
+  return adapter_->Enable(start_restricted);
+}
+
+bool BluetoothBinderServer::EnableNoAutoConnect() {
+  VLOG(2) << __func__;
+  // TODO(armansito): Implement.
+  return false;
+}
+
+bool BluetoothBinderServer::Disable() {
+  VLOG(2) << __func__;
+  return adapter_->Disable();
+}
+
+std::string BluetoothBinderServer::GetAddress() {
+  VLOG(2) << __func__;
+  return adapter_->GetAddress();
+}
+
+std::vector<bluetooth::UUID> BluetoothBinderServer::GetUUIDs() {
+  VLOG(2) << __func__;
+  // TODO(armansito): Implement.
+  return std::vector<bluetooth::UUID>();
+}
+
+bool BluetoothBinderServer::SetName(const std::string& name) {
+  VLOG(2) << __func__;
+  return adapter_->SetName(name);
+}
+
+std::string BluetoothBinderServer::GetName() {
+  VLOG(2) << __func__;
+  return adapter_->GetName();
+}
+
+void BluetoothBinderServer::RegisterCallback(
+    const sp<IBluetoothCallback>& callback) {
+  VLOG(2) << __func__;
+  if (!callback.get() ) {
+    LOG(ERROR) << "RegisterCallback called with NULL binder. Ignoring.";
+    return;
+  }
+  callbacks_.Register(callback);
+}
+
+void BluetoothBinderServer::UnregisterCallback(
+    const sp<IBluetoothCallback>& callback) {
+  VLOG(2) << __func__;
+  if (!callback.get() ) {
+    LOG(ERROR) << "UnregisterCallback called with NULL binder. Ignoring.";
+    return;
+  }
+  callbacks_.Unregister(callback);
+}
+
+bool BluetoothBinderServer::IsMultiAdvertisementSupported() {
+  VLOG(2) << __func__;
+  return adapter_->IsMultiAdvertisementSupported();
+}
+
+sp<IBluetoothLowEnergy>
+BluetoothBinderServer::GetLowEnergyInterface() {
+  VLOG(2) << __func__;
+
+  if (!adapter_->IsEnabled()) {
+    LOG(ERROR) << "Cannot obtain IBluetoothLowEnergy interface while disabled";
+    return nullptr;
+  }
+
+  if (!low_energy_interface_.get())
+    low_energy_interface_ = new BluetoothLowEnergyBinderServer(adapter_);
+
+  return low_energy_interface_;
+}
+
+sp<IBluetoothGattClient>
+BluetoothBinderServer::GetGattClientInterface() {
+  VLOG(2) << __func__;
+
+  if (!adapter_->IsEnabled()) {
+    LOG(ERROR) << "Cannot obtain IBluetoothGattClient interface while disabled";
+    return nullptr;
+  }
+
+  if (!gatt_client_interface_.get())
+    gatt_client_interface_ = new BluetoothGattClientBinderServer(adapter_);
+
+  return gatt_client_interface_;
+}
+
+sp<IBluetoothGattServer>
+BluetoothBinderServer::GetGattServerInterface() {
+  VLOG(2) << __func__;
+
+  if (!adapter_->IsEnabled()) {
+    LOG(ERROR) << "Cannot obtain IBluetoothGattServer interface while disabled";
+    return nullptr;
+  }
+
+  if (!gatt_server_interface_.get())
+    gatt_server_interface_ = new BluetoothGattServerBinderServer(adapter_);
+
+  return gatt_server_interface_;
+}
+
+android::status_t BluetoothBinderServer::dump(int fd, const android::Vector<android::String16>& args) {
+  VLOG(2) << __func__ << " called with fd " << fd;
+  if  (args.size() > 0) {
+    // TODO (jamuraa): Parse arguments and switch on --proto, --proto_text
+    for (auto x : args) {
+      VLOG(2) << __func__ << "argument: " << x.string();
+    }
+  }
+  // TODO (jamuraa): enumerate profiles and dump profile information
+  const bt_interface_t *iface = bluetooth::hal::BluetoothInterface::Get()->GetHALInterface();
+  iface->dump(fd, NULL);
+  return android::NO_ERROR;
+}
+
+void BluetoothBinderServer::OnAdapterStateChanged(
+    bluetooth::Adapter* adapter,
+    bluetooth::AdapterState prev_state,
+    bluetooth::AdapterState new_state) {
+  CHECK_EQ(adapter, adapter_);
+  VLOG(2) << "Received adapter state update - prev: " << prev_state
+          << " new: " << new_state;
+  callbacks_.ForEach([prev_state, new_state](IBluetoothCallback* callback) {
+    callback->OnBluetoothStateChange(prev_state, new_state);
+  });
+}
+
+}  // namespace binder
+}  // namespace ipc
diff --git a/rtkbt/code/bt/service/ipc/binder/bluetooth_binder_server.h b/rtkbt/code/bt/service/ipc/binder/bluetooth_binder_server.h
new file mode 100755
index 0000000..351a858
--- /dev/null
+++ b/rtkbt/code/bt/service/ipc/binder/bluetooth_binder_server.h
@@ -0,0 +1,93 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#pragma once
+
+#include <string>
+#include <vector>
+
+#include <base/macros.h>
+#include <utils/String16.h>
+#include <utils/Vector.h>
+
+#include "service/adapter.h"
+#include "service/common/bluetooth/binder/IBluetooth.h"
+#include "service/common/bluetooth/binder/IBluetoothCallback.h"
+#include "service/common/bluetooth/binder/IBluetoothGattClient.h"
+#include "service/common/bluetooth/binder/IBluetoothGattServer.h"
+#include "service/common/bluetooth/binder/IBluetoothLowEnergy.h"
+#include "service/common/bluetooth/uuid.h"
+#include "service/ipc/binder/remote_callback_list.h"
+
+namespace ipc {
+namespace binder {
+
+// Implements the server side of the IBluetooth Binder interface.
+class BluetoothBinderServer : public BnBluetooth,
+                              public bluetooth::Adapter::Observer {
+ public:
+  explicit BluetoothBinderServer(bluetooth::Adapter* adapter);
+  ~BluetoothBinderServer() override;
+
+  // IBluetooth overrides:
+  bool IsEnabled() override;
+  int GetState() override;
+  bool Enable(bool start_restricted) override;
+  bool EnableNoAutoConnect() override;
+  bool Disable() override;
+
+  std::string GetAddress() override;
+  std::vector<bluetooth::UUID> GetUUIDs() override;
+  bool SetName(const std::string& name) override;
+  std::string GetName() override;
+
+  void RegisterCallback(
+      const android::sp<IBluetoothCallback>& callback) override;
+  void UnregisterCallback(
+      const android::sp<IBluetoothCallback>& callback) override;
+
+  bool IsMultiAdvertisementSupported() override;
+  android::sp<IBluetoothLowEnergy> GetLowEnergyInterface() override;
+  android::sp<IBluetoothGattClient> GetGattClientInterface() override;
+  android::sp<IBluetoothGattServer> GetGattServerInterface() override;
+
+  android::status_t dump(int fd, const android::Vector<android::String16>& args) override;
+  // bluetooth::Adapter::Observer overrides:
+  void OnAdapterStateChanged(bluetooth::Adapter* adapter,
+                             bluetooth::AdapterState prev_state,
+                             bluetooth::AdapterState new_state) override;
+
+ private:
+  bluetooth::Adapter* adapter_;  // weak
+  RemoteCallbackList<IBluetoothCallback> callbacks_;
+
+  // The IBluetoothLowEnergy interface handle. This is lazily initialized on the
+  // first call to GetLowEnergyInterface().
+  android::sp<IBluetoothLowEnergy> low_energy_interface_;
+
+  // The IBluetoothGattClient interface handle. This is lazily initialized on
+  // the first call to GetGattClientInterface().
+  android::sp<IBluetoothGattClient> gatt_client_interface_;
+
+  // The IBluetoothGattServer interface handle. This is lazily initialized on
+  // the first call to GetGattServerInterface().
+  android::sp<IBluetoothGattServer> gatt_server_interface_;
+
+  DISALLOW_COPY_AND_ASSIGN(BluetoothBinderServer);
+};
+
+}  // namespace binder
+}  // namespace ipc
diff --git a/rtkbt/code/bt/service/ipc/binder/bluetooth_gatt_client_binder_server.cpp b/rtkbt/code/bt/service/ipc/binder/bluetooth_gatt_client_binder_server.cpp
new file mode 100755
index 0000000..917a4d9
--- /dev/null
+++ b/rtkbt/code/bt/service/ipc/binder/bluetooth_gatt_client_binder_server.cpp
@@ -0,0 +1,84 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#include "service/ipc/binder/bluetooth_gatt_client_binder_server.h"
+
+#include <base/logging.h>
+
+#include "service/adapter.h"
+
+namespace ipc {
+namespace binder {
+
+namespace {
+const int kInvalidInstanceId = -1;
+}  // namespace
+
+BluetoothGattClientBinderServer::BluetoothGattClientBinderServer(
+    bluetooth::Adapter* adapter) : adapter_(adapter) {
+  CHECK(adapter_);
+}
+
+bool BluetoothGattClientBinderServer::RegisterClient(
+    const android::sp<IBluetoothGattClientCallback>& callback) {
+  VLOG(2) << __func__;
+
+  bluetooth::GattClientFactory* gatt_client_factory =
+      adapter_->GetGattClientFactory();
+
+  return RegisterInstanceBase(callback, gatt_client_factory);
+}
+
+void BluetoothGattClientBinderServer::UnregisterClient(int client_id) {
+  VLOG(2) << __func__;
+  UnregisterInstanceBase(client_id);
+}
+
+void BluetoothGattClientBinderServer::UnregisterAll() {
+  VLOG(2) << __func__;
+  UnregisterAllBase();
+}
+
+android::sp<IBluetoothGattClientCallback>
+BluetoothGattClientBinderServer::GetGattClientCallback(int client_id) {
+  auto cb = GetCallback(client_id);
+  return android::sp<IBluetoothGattClientCallback>(
+      static_cast<IBluetoothGattClientCallback*>(cb.get()));
+}
+
+std::shared_ptr<bluetooth::GattClient>
+BluetoothGattClientBinderServer::GetGattClient(int client_id) {
+  return std::static_pointer_cast<bluetooth::GattClient>(
+      GetInstance(client_id));
+}
+
+void BluetoothGattClientBinderServer::OnRegisterInstanceImpl(
+    bluetooth::BLEStatus status,
+    android::sp<IInterface> callback,
+    bluetooth::BluetoothInstance* instance) {
+  VLOG(1) << __func__ << " client ID: " << instance->GetInstanceId()
+          << " status: " << status;
+
+  android::sp<IBluetoothGattClientCallback> cb(
+      static_cast<IBluetoothGattClientCallback*>(callback.get()));
+  cb->OnClientRegistered(
+      status,
+      (status == bluetooth::BLE_STATUS_SUCCESS) ?
+          instance->GetInstanceId() : kInvalidInstanceId);
+}
+
+}  // namespace binder
+}  // namespace ipc
diff --git a/rtkbt/code/bt/service/ipc/binder/bluetooth_gatt_client_binder_server.h b/rtkbt/code/bt/service/ipc/binder/bluetooth_gatt_client_binder_server.h
new file mode 100755
index 0000000..b41ad44
--- /dev/null
+++ b/rtkbt/code/bt/service/ipc/binder/bluetooth_gatt_client_binder_server.h
@@ -0,0 +1,69 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#pragma once
+
+#include <base/macros.h>
+
+#include "service/gatt_client.h"
+#include "service/common/bluetooth/binder/IBluetoothGattClient.h"
+#include "service/common/bluetooth/binder/IBluetoothGattClientCallback.h"
+#include "service/ipc/binder/interface_with_instances_base.h"
+
+namespace bluetooth {
+class Adapter;
+}  // namespace bluetooth
+
+namespace ipc {
+namespace binder {
+
+// Implements the server side of the IBluetoothGattClient interface.
+class BluetoothGattClientBinderServer : public BnBluetoothGattClient,
+                                        public InterfaceWithInstancesBase {
+ public:
+  explicit BluetoothGattClientBinderServer(bluetooth::Adapter* adapter);
+  ~BluetoothGattClientBinderServer() override = default;
+
+  // IBluetoothGattClient overrides:
+  bool RegisterClient(
+      const android::sp<IBluetoothGattClientCallback>& callback) override;
+  void UnregisterClient(int client_id) override;
+  void UnregisterAll() override;
+
+ private:
+  // Returns a pointer to the IBluetoothGattClientCallback instance
+  // associated with |client_id|. Returns NULL if such a callback cannot be
+  // found.
+  android::sp<IBluetoothGattClientCallback>
+      GetGattClientCallback(int client_id);
+
+  // Returns a pointer to the GattClient instance associated with |client_id|.
+  // Returns NULL if such a client cannot be found.
+  std::shared_ptr<bluetooth::GattClient> GetGattClient(int client_id);
+
+  // InterfaceWithInstancesBase override:
+  void OnRegisterInstanceImpl(
+      bluetooth::BLEStatus status,
+      android::sp<IInterface> callback,
+      bluetooth::BluetoothInstance* instance) override;
+
+  bluetooth::Adapter* adapter_;  // weak
+
+  DISALLOW_COPY_AND_ASSIGN(BluetoothGattClientBinderServer);
+};
+
+}  // namespace binder
+}  // namespace ipc
diff --git a/rtkbt/code/bt/service/ipc/binder/bluetooth_gatt_server_binder_server.cpp b/rtkbt/code/bt/service/ipc/binder/bluetooth_gatt_server_binder_server.cpp
new file mode 100755
index 0000000..302c442
--- /dev/null
+++ b/rtkbt/code/bt/service/ipc/binder/bluetooth_gatt_server_binder_server.cpp
@@ -0,0 +1,358 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#include "service/ipc/binder/bluetooth_gatt_server_binder_server.h"
+
+#include <base/logging.h>
+
+#include "service/adapter.h"
+
+namespace ipc {
+namespace binder {
+
+namespace {
+const int kInvalidInstanceId = -1;
+}  // namespace
+
+BluetoothGattServerBinderServer::BluetoothGattServerBinderServer(
+    bluetooth::Adapter* adapter) : adapter_(adapter) {
+  CHECK(adapter_);
+}
+
+bool BluetoothGattServerBinderServer::RegisterServer(
+    const android::sp<IBluetoothGattServerCallback>& callback) {
+  VLOG(2) << __func__;
+  bluetooth::GattServerFactory* gatt_server_factory =
+      adapter_->GetGattServerFactory();
+
+  return RegisterInstanceBase(callback, gatt_server_factory);
+}
+
+void BluetoothGattServerBinderServer::UnregisterServer(int server_id) {
+  VLOG(2) << __func__;
+  UnregisterInstanceBase(server_id);
+}
+
+void BluetoothGattServerBinderServer::UnregisterAll() {
+  VLOG(2) << __func__;
+  UnregisterAllBase();
+}
+
+bool BluetoothGattServerBinderServer::BeginServiceDeclaration(
+    int server_id, bool is_primary, const bluetooth::UUID& uuid,
+    std::unique_ptr<bluetooth::GattIdentifier>* out_id) {
+  VLOG(2) << __func__;
+  CHECK(out_id);
+  std::lock_guard<std::mutex> lock(*maps_lock());
+
+  auto gatt_server = GetGattServer(server_id);
+  if (!gatt_server) {
+    LOG(ERROR) << "Unknown server_id: " << server_id;
+    return false;
+  }
+
+  auto service_id = gatt_server->BeginServiceDeclaration(uuid, is_primary);
+  if (!service_id) {
+    LOG(ERROR) << "Failed to begin service declaration - server_id: "
+               << server_id << " UUID: " << uuid.ToString();
+    return false;
+  }
+
+  out_id->swap(service_id);
+
+  return true;
+}
+
+bool BluetoothGattServerBinderServer::AddCharacteristic(
+    int server_id, const bluetooth::UUID& uuid,
+    int properties, int permissions,
+    std::unique_ptr<bluetooth::GattIdentifier>* out_id) {
+  VLOG(2) << __func__;
+  CHECK(out_id);
+  std::lock_guard<std::mutex> lock(*maps_lock());
+
+  auto gatt_server = GetGattServer(server_id);
+  if (!gatt_server) {
+    LOG(ERROR) << "Unknown server_id: " << server_id;
+    return false;
+  }
+
+  auto char_id = gatt_server->AddCharacteristic(uuid, properties, permissions);
+  if (!char_id) {
+    LOG(ERROR) << "Failed to add characteristic - server_id: "
+               << server_id << " UUID: " << uuid.ToString();
+    return false;
+  }
+
+  out_id->swap(char_id);
+
+  return true;
+}
+
+bool BluetoothGattServerBinderServer::AddDescriptor(
+    int server_id, const bluetooth::UUID& uuid, int permissions,
+    std::unique_ptr<bluetooth::GattIdentifier>* out_id) {
+  VLOG(2) << __func__;
+  CHECK(out_id);
+  std::lock_guard<std::mutex> lock(*maps_lock());
+
+  auto gatt_server = GetGattServer(server_id);
+  if (!gatt_server) {
+    LOG(ERROR) << "Unknown server_id: " << server_id;
+    return false;
+  }
+
+  auto desc_id = gatt_server->AddDescriptor(uuid, permissions);
+  if (!desc_id) {
+    LOG(ERROR) << "Failed to add descriptor - server_id: "
+               << server_id << " UUID: " << uuid.ToString();
+    return false;
+  }
+
+  out_id->swap(desc_id);
+
+  return true;
+}
+
+bool BluetoothGattServerBinderServer::EndServiceDeclaration(int server_id) {
+  VLOG(2) << __func__;
+  std::lock_guard<std::mutex> lock(*maps_lock());
+
+  auto gatt_server = GetGattServer(server_id);
+  if (!gatt_server) {
+    LOG(ERROR) << "Unknown server_id: " << server_id;
+    return false;
+  }
+
+  // Create a weak pointer and pass that to the callback to prevent a potential
+  // use after free.
+  android::wp<BluetoothGattServerBinderServer> weak_ptr_to_this(this);
+  auto callback = [=](
+      bluetooth::BLEStatus status,
+      const bluetooth::GattIdentifier& service_id) {
+    auto sp_to_this = weak_ptr_to_this.promote();
+    if (!sp_to_this.get()) {
+      VLOG(2) << "BluetoothLowEnergyBinderServer was deleted";
+      return;
+    }
+
+    std::lock_guard<std::mutex> lock(*maps_lock());
+
+    auto gatt_cb = GetGattServerCallback(server_id);
+    if (!gatt_cb.get()) {
+      VLOG(2) << "The callback was deleted";
+      return;
+    }
+
+    gatt_cb->OnServiceAdded(status, service_id);
+  };
+
+  if (!gatt_server->EndServiceDeclaration(callback)) {
+    LOG(ERROR) << "Failed to end service declaration";
+    return false;
+  }
+
+  return true;
+}
+
+bool BluetoothGattServerBinderServer::SendResponse(
+    int server_id, const std::string& device_address,
+    int request_id, int status, int offset,
+    const std::vector<uint8_t>& value) {
+  VLOG(2) << __func__;
+  std::lock_guard<std::mutex> lock(*maps_lock());
+
+  auto gatt_server = GetGattServer(server_id);
+  if (!gatt_server) {
+    LOG(ERROR) << "Unknown server_id: " << server_id;
+    return false;
+  }
+
+  return gatt_server->SendResponse(
+      device_address, request_id, static_cast<bluetooth::GATTError>(status),
+      offset, value);
+}
+
+bool BluetoothGattServerBinderServer::SendNotification(
+    int server_id,
+    const std::string& device_address,
+    const bluetooth::GattIdentifier& characteristic_id,
+    bool confirm,
+    const std::vector<uint8_t>& value) {
+  VLOG(2) << __func__;
+  std::lock_guard<std::mutex> lock(*maps_lock());
+
+  auto gatt_server = GetGattServer(server_id);
+  if (!gatt_server) {
+    LOG(ERROR) << "Unknown server_id: " << server_id;
+    return false;
+  }
+
+  // Create a weak pointer and pass that to the callback to prevent a potential
+  // use after free.
+  android::wp<BluetoothGattServerBinderServer> weak_ptr_to_this(this);
+  auto callback = [=](bluetooth::GATTError error) {
+    auto sp_to_this = weak_ptr_to_this.promote();
+    if (!sp_to_this.get()) {
+      VLOG(2) << "BluetoothLowEnergyBinderServer was deleted";
+      return;
+    }
+
+    std::lock_guard<std::mutex> lock(*maps_lock());
+
+    auto gatt_cb = GetGattServerCallback(server_id);
+    if (!gatt_cb.get()) {
+      VLOG(2) << "The callback was deleted";
+      return;
+    }
+
+    gatt_cb->OnNotificationSent(device_address, error);
+  };
+
+  if (!gatt_server->SendNotification(device_address, characteristic_id,
+                                     confirm, value, callback)) {
+    LOG(ERROR) << "Failed to send notification";
+    return false;
+  }
+
+  return true;
+}
+
+void BluetoothGattServerBinderServer::OnCharacteristicReadRequest(
+    bluetooth::GattServer* gatt_server,
+    const std::string& device_address,
+    int request_id, int offset, bool is_long,
+    const bluetooth::GattIdentifier& characteristic_id) {
+  VLOG(2) << __func__;
+  std::lock_guard<std::mutex> lock(*maps_lock());
+
+  auto gatt_cb = GetGattServerCallback(gatt_server->GetInstanceId());
+  if (!gatt_cb.get()) {
+    LOG(WARNING) << "Callback for this GattServer was deleted.";
+    return;
+  }
+
+  gatt_cb->OnCharacteristicReadRequest(
+      device_address, request_id, offset, is_long, characteristic_id);
+}
+
+void BluetoothGattServerBinderServer::OnDescriptorReadRequest(
+    bluetooth::GattServer* gatt_server,
+    const std::string& device_address,
+    int request_id, int offset, bool is_long,
+    const bluetooth::GattIdentifier& descriptor_id) {
+  VLOG(2) << __func__;
+  std::lock_guard<std::mutex> lock(*maps_lock());
+
+  auto gatt_cb = GetGattServerCallback(gatt_server->GetInstanceId());
+  if (!gatt_cb.get()) {
+    LOG(WARNING) << "Callback for this GattServer was deleted.";
+    return;
+  }
+
+  gatt_cb->OnDescriptorReadRequest(
+      device_address, request_id, offset, is_long, descriptor_id);
+}
+
+android::sp<IBluetoothGattServerCallback>
+BluetoothGattServerBinderServer::GetGattServerCallback(int server_id) {
+  auto cb = GetCallback(server_id);
+  return android::sp<IBluetoothGattServerCallback>(
+      static_cast<IBluetoothGattServerCallback*>(cb.get()));
+}
+
+std::shared_ptr<bluetooth::GattServer>
+BluetoothGattServerBinderServer::GetGattServer(int server_id) {
+  return std::static_pointer_cast<bluetooth::GattServer>(
+      GetInstance(server_id));
+}
+
+void BluetoothGattServerBinderServer::OnRegisterInstanceImpl(
+    bluetooth::BLEStatus status,
+    android::sp<IInterface> callback,
+    bluetooth::BluetoothInstance* instance) {
+  VLOG(1) << __func__ << " instance ID: " << instance->GetInstanceId()
+          << " status: " << status;
+  bluetooth::GattServer* gatt_server =
+      static_cast<bluetooth::GattServer*>(instance);
+  gatt_server->SetDelegate(this);
+
+  android::sp<IBluetoothGattServerCallback> cb(
+      static_cast<IBluetoothGattServerCallback*>(callback.get()));
+  cb->OnServerRegistered(
+      status,
+      (status == bluetooth::BLE_STATUS_SUCCESS) ?
+          instance->GetInstanceId() : kInvalidInstanceId);
+}
+
+void BluetoothGattServerBinderServer::OnCharacteristicWriteRequest(
+    bluetooth::GattServer* gatt_server,
+    const std::string& device_address,
+    int request_id, int offset, bool is_prepare_write, bool need_response,
+    const std::vector<uint8_t>& value,
+    const bluetooth::GattIdentifier& characteristic_id) {
+  VLOG(2) << __func__;
+  std::lock_guard<std::mutex> lock(*maps_lock());
+
+  auto gatt_cb = GetGattServerCallback(gatt_server->GetInstanceId());
+  if (!gatt_cb.get()) {
+    LOG(WARNING) << "Callback for this GattServer was deleted.";
+    return;
+  }
+
+  gatt_cb->OnCharacteristicWriteRequest(
+      device_address, request_id, offset, is_prepare_write, need_response,
+      value, characteristic_id);
+}
+
+void BluetoothGattServerBinderServer::OnDescriptorWriteRequest(
+    bluetooth::GattServer* gatt_server,
+    const std::string& device_address,
+    int request_id, int offset, bool is_prepare_write, bool need_response,
+    const std::vector<uint8_t>& value,
+    const bluetooth::GattIdentifier& descriptor_id) {
+  VLOG(2) << __func__;
+  std::lock_guard<std::mutex> lock(*maps_lock());
+
+  auto gatt_cb = GetGattServerCallback(gatt_server->GetInstanceId());
+  if (!gatt_cb.get()) {
+    LOG(WARNING) << "Callback for this GattServer was deleted.";
+    return;
+  }
+
+  gatt_cb->OnDescriptorWriteRequest(
+      device_address, request_id, offset, is_prepare_write, need_response,
+      value, descriptor_id);
+}
+
+void BluetoothGattServerBinderServer::OnExecuteWriteRequest(
+    bluetooth::GattServer* gatt_server,
+    const std::string& device_address,
+    int request_id, bool is_execute) {
+  VLOG(2) << __func__;
+  std::lock_guard<std::mutex> lock(*maps_lock());
+
+  auto gatt_cb = GetGattServerCallback(gatt_server->GetInstanceId());
+  if (!gatt_cb.get()) {
+    LOG(WARNING) << "Callback for this GattServer was deleted.";
+    return;
+  }
+
+  gatt_cb->OnExecuteWriteRequest(device_address, request_id, is_execute);
+}
+
+}  // namespace binder
+}  // namespace ipc
diff --git a/rtkbt/code/bt/service/ipc/binder/bluetooth_gatt_server_binder_server.h b/rtkbt/code/bt/service/ipc/binder/bluetooth_gatt_server_binder_server.h
new file mode 100755
index 0000000..50658af
--- /dev/null
+++ b/rtkbt/code/bt/service/ipc/binder/bluetooth_gatt_server_binder_server.h
@@ -0,0 +1,118 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#pragma once
+
+#include <base/macros.h>
+
+#include "service/gatt_server.h"
+#include "service/common/bluetooth/binder/IBluetoothGattServer.h"
+#include "service/common/bluetooth/binder/IBluetoothGattServerCallback.h"
+#include "service/ipc/binder/interface_with_instances_base.h"
+
+namespace bluetooth {
+class Adapter;
+}  // namespace bluetooth
+
+namespace ipc {
+namespace binder {
+
+// Implements the server side of the IBluetoothGattServer interface.
+class BluetoothGattServerBinderServer : public BnBluetoothGattServer,
+                                        public InterfaceWithInstancesBase,
+                                        public bluetooth::GattServer::Delegate {
+ public:
+  explicit BluetoothGattServerBinderServer(bluetooth::Adapter* adapter);
+  ~BluetoothGattServerBinderServer() override = default;
+
+  // IBluetoothGattServer overrides:
+  bool RegisterServer(
+      const android::sp<IBluetoothGattServerCallback>& callback) override;
+  void UnregisterServer(int server_id) override;
+  void UnregisterAll() override;
+  bool BeginServiceDeclaration(
+      int server_id, bool is_primary, const bluetooth::UUID& uuid,
+      std::unique_ptr<bluetooth::GattIdentifier>* out_id) override;
+  bool AddCharacteristic(
+      int server_id, const bluetooth::UUID& uuid,
+      int properties, int permissions,
+      std::unique_ptr<bluetooth::GattIdentifier>* out_id) override;
+  bool AddDescriptor(
+      int server_id, const bluetooth::UUID& uuid, int permissions,
+      std::unique_ptr<bluetooth::GattIdentifier>* out_id) override;
+  bool EndServiceDeclaration(int server_id) override;
+  bool SendResponse(int server_id, const std::string& device_address,
+                    int request_id, int status, int offset,
+                    const std::vector<uint8_t>& value) override;
+  bool SendNotification(
+      int server_id,
+      const std::string& device_address,
+      const bluetooth::GattIdentifier& characteristic_id,
+      bool confirm,
+      const std::vector<uint8_t>& value) override;
+
+  // bluetooth::GattServer::Delegate overrides:
+  void OnCharacteristicReadRequest(
+      bluetooth::GattServer* gatt_server,
+      const std::string& device_address,
+      int request_id, int offset, bool is_long,
+      const bluetooth::GattIdentifier& characteristic_id) override;
+  void OnDescriptorReadRequest(
+      bluetooth::GattServer* gatt_server,
+      const std::string& device_address,
+      int request_id, int offset, bool is_long,
+      const bluetooth::GattIdentifier& descriptor_id) override;
+  void OnCharacteristicWriteRequest(
+      bluetooth::GattServer* gatt_server,
+      const std::string& device_address,
+      int request_id, int offset, bool is_prepare_write, bool need_response,
+      const std::vector<uint8_t>& value,
+      const bluetooth::GattIdentifier& characteristic_id) override;
+  void OnDescriptorWriteRequest(
+      bluetooth::GattServer* gatt_server,
+      const std::string& device_address,
+      int request_id, int offset, bool is_prepare_write, bool need_response,
+      const std::vector<uint8_t>& value,
+      const bluetooth::GattIdentifier& descriptor_id) override;
+  void OnExecuteWriteRequest(
+      bluetooth::GattServer* gatt_server,
+      const std::string& device_address,
+      int request_id, bool is_execute) override;
+
+ private:
+  // Returns a pointer to the IBluetoothGattServerCallback instance
+  // associated with |server_id|. Returns NULL if such a callback cannot be
+  // found.
+  android::sp<IBluetoothGattServerCallback>
+      GetGattServerCallback(int server_id);
+
+  // Returns a pointer to the GattServer instance associated with |server_id|.
+  // Returns NULL if such an instance cannot be found.
+  std::shared_ptr<bluetooth::GattServer> GetGattServer(int server_id);
+
+  // InterfaceWithInstancesBase override:
+  void OnRegisterInstanceImpl(
+      bluetooth::BLEStatus status,
+      android::sp<IInterface> callback,
+      bluetooth::BluetoothInstance* instance) override;
+
+  bluetooth::Adapter* adapter_;  // weak
+
+  DISALLOW_COPY_AND_ASSIGN(BluetoothGattServerBinderServer);
+};
+
+}  // namespace binder
+}  // namespace ipc
diff --git a/rtkbt/code/bt/service/ipc/binder/bluetooth_low_energy_binder_server.cpp b/rtkbt/code/bt/service/ipc/binder/bluetooth_low_energy_binder_server.cpp
new file mode 100755
index 0000000..0e5d6ff
--- /dev/null
+++ b/rtkbt/code/bt/service/ipc/binder/bluetooth_low_energy_binder_server.cpp
@@ -0,0 +1,298 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#include "service/ipc/binder/bluetooth_low_energy_binder_server.h"
+
+#include <base/logging.h>
+
+#include "service/adapter.h"
+
+namespace ipc {
+namespace binder {
+
+namespace {
+const int kInvalidInstanceId = -1;
+}  // namespace
+
+BluetoothLowEnergyBinderServer::BluetoothLowEnergyBinderServer(
+    bluetooth::Adapter* adapter) : adapter_(adapter) {
+  CHECK(adapter_);
+}
+
+BluetoothLowEnergyBinderServer::~BluetoothLowEnergyBinderServer() {
+}
+
+bool BluetoothLowEnergyBinderServer::RegisterClient(
+    const android::sp<IBluetoothLowEnergyCallback>& callback) {
+  VLOG(2) << __func__;
+  bluetooth::LowEnergyClientFactory* ble_factory =
+      adapter_->GetLowEnergyClientFactory();
+
+  return RegisterInstanceBase(callback, ble_factory);
+}
+
+void BluetoothLowEnergyBinderServer::UnregisterClient(int client_id) {
+  VLOG(2) << __func__;
+  UnregisterInstanceBase(client_id);
+}
+
+void BluetoothLowEnergyBinderServer::UnregisterAll() {
+  VLOG(2) << __func__;
+  UnregisterAllBase();
+}
+
+bool BluetoothLowEnergyBinderServer::Connect(int client_id,
+                                             const char* address,
+                                             bool is_direct) {
+  VLOG(2) << __func__ << " client_id: " << client_id
+          << " address: " << address
+          << " is_direct: " << is_direct;
+  std::lock_guard<std::mutex> lock(*maps_lock());
+
+  auto client = GetLEClient(client_id);
+  if (!client) {
+    LOG(ERROR) << "Unknown client_id: " << client_id;
+    return false;
+  }
+
+  return client->Connect(std::string(address), is_direct);
+}
+
+bool BluetoothLowEnergyBinderServer::Disconnect(int client_id,
+                                                const char* address) {
+  VLOG(2) << __func__ << " client_id: " << client_id
+          << " address: " << address;
+  std::lock_guard<std::mutex> lock(*maps_lock());
+
+  auto client = GetLEClient(client_id);
+  if (!client) {
+    LOG(ERROR) << "Unknown client_id: " << client_id;
+    return false;
+  }
+
+  return client->Disconnect(std::string(address));
+}
+
+bool BluetoothLowEnergyBinderServer::SetMtu(int client_id,
+                                            const char* address,
+                                            int mtu) {
+  VLOG(2) << __func__ << " client_id: " << client_id
+          << " address: " << address
+          << " mtu: " << mtu;
+  std::lock_guard<std::mutex> lock(*maps_lock());
+
+  auto client = GetLEClient(client_id);
+  if (!client) {
+    LOG(ERROR) << "Unknown client_id: " << client_id;
+    return false;
+  }
+
+  return client->SetMtu(address, mtu);
+}
+
+bool BluetoothLowEnergyBinderServer::StartScan(
+    int client_id,
+    const bluetooth::ScanSettings& settings,
+    const std::vector<bluetooth::ScanFilter>& filters) {
+  VLOG(2) << __func__ << " client_id: " << client_id;
+  std::lock_guard<std::mutex> lock(*maps_lock());
+
+  auto client = GetLEClient(client_id);
+  if (!client) {
+    LOG(ERROR) << "Unknown client_id: " << client_id;
+    return false;
+  }
+
+  return client->StartScan(settings, filters);
+}
+
+bool BluetoothLowEnergyBinderServer::StopScan(int client_id) {
+  VLOG(2) << __func__ << " client_id: " << client_id;
+  std::lock_guard<std::mutex> lock(*maps_lock());
+
+  auto client = GetLEClient(client_id);
+  if (!client) {
+    LOG(ERROR) << "Unknown client_id: " << client_id;
+    return false;
+  }
+
+  return client->StopScan();
+}
+
+bool BluetoothLowEnergyBinderServer::StartMultiAdvertising(
+    int client_id,
+    const bluetooth::AdvertiseData& advertise_data,
+    const bluetooth::AdvertiseData& scan_response,
+    const bluetooth::AdvertiseSettings& settings) {
+  VLOG(2) << __func__ << " client_id: " << client_id;
+  std::lock_guard<std::mutex> lock(*maps_lock());
+
+  auto client = GetLEClient(client_id);
+  if (!client) {
+    LOG(ERROR) << "Unknown client_id: " << client_id;
+    return false;
+  }
+
+  // Create a weak pointer and pass that to the callback to prevent a potential
+  // use after free.
+  android::wp<BluetoothLowEnergyBinderServer> weak_ptr_to_this(this);
+  auto settings_copy = settings;
+  auto callback = [=](bluetooth::BLEStatus status) {
+    auto sp_to_this = weak_ptr_to_this.promote();
+    if (!sp_to_this.get()) {
+      VLOG(2) << "BluetoothLowEnergyBinderServer was deleted";
+      return;
+    }
+
+    std::lock_guard<std::mutex> lock(*maps_lock());
+
+    auto cb = GetLECallback(client_id);
+    if (!cb.get()) {
+      VLOG(1) << "Client was removed before callback: " << client_id;
+      return;
+    }
+
+    cb->OnMultiAdvertiseCallback(status, true /* is_start */, settings_copy);
+  };
+
+  if (!client->StartAdvertising(
+      settings, advertise_data, scan_response, callback)) {
+    LOG(ERROR) << "Failed to initiate call to start advertising";
+    return false;
+  }
+
+  return true;
+}
+
+bool BluetoothLowEnergyBinderServer::StopMultiAdvertising(int client_id) {
+  VLOG(2) << __func__;
+  std::lock_guard<std::mutex> lock(*maps_lock());
+
+  auto client = GetLEClient(client_id);
+  if (!client) {
+    LOG(ERROR) << "Unknown client_id: " << client_id;
+    return false;
+  }
+
+  // Create a weak pointer and pass that to the callback to prevent a potential
+  // use after free.
+  android::wp<BluetoothLowEnergyBinderServer> weak_ptr_to_this(this);
+  auto settings_copy = client->advertise_settings();
+  auto callback = [=](bluetooth::BLEStatus status) {
+    auto sp_to_this = weak_ptr_to_this.promote();
+    if (!sp_to_this.get()) {
+      VLOG(2) << "BluetoothLowEnergyBinderServer was deleted";
+      return;
+    }
+
+    auto cb = GetLECallback(client_id);
+    if (!cb.get()) {
+      VLOG(2) << "Client was unregistered - client_id: " << client_id;
+      return;
+    }
+
+    std::lock_guard<std::mutex> lock(*maps_lock());
+
+    cb->OnMultiAdvertiseCallback(status, false /* is_start */, settings_copy);
+  };
+
+  if (!client->StopAdvertising(callback)) {
+    LOG(ERROR) << "Failed to initiate call to start advertising";
+    return false;
+  }
+
+  return true;
+}
+
+void BluetoothLowEnergyBinderServer::OnConnectionState(
+      bluetooth::LowEnergyClient* client, int status,
+      const char* address, bool connected) {
+  VLOG(2) << __func__ << " address: " << address << " connected: " << connected;
+
+  int client_id = client->GetInstanceId();
+  auto cb = GetLECallback(client->GetInstanceId());
+  if (!cb.get()) {
+    VLOG(2) << "Client was unregistered - client_id: " << client_id;
+    return;
+  }
+
+  cb->OnConnectionState(status, client_id, address, connected);
+}
+
+void BluetoothLowEnergyBinderServer::OnMtuChanged(
+      bluetooth::LowEnergyClient* client, int status, const char* address, int mtu) {
+  VLOG(2) << __func__ << " address: " << address
+          << " status: " << status
+          << " mtu: " << mtu;
+
+  int client_id = client->GetInstanceId();
+  auto cb = GetLECallback(client_id);
+  if (!cb.get()) {
+    VLOG(2) << "Client was unregistered - client_id: " << client_id;
+    return;
+  }
+
+  cb->OnMtuChanged(status, address, mtu);
+}
+
+void BluetoothLowEnergyBinderServer::OnScanResult(
+    bluetooth::LowEnergyClient* client,
+    const bluetooth::ScanResult& result) {
+  VLOG(2) << __func__;
+  std::lock_guard<std::mutex> lock(*maps_lock());
+
+  int client_id = client->GetInstanceId();
+  auto cb = GetLECallback(client->GetInstanceId());
+  if (!cb.get()) {
+    VLOG(2) << "Client was unregistered - client_id: " << client_id;
+    return;
+  }
+
+  cb->OnScanResult(result);
+}
+
+android::sp<IBluetoothLowEnergyCallback>
+BluetoothLowEnergyBinderServer::GetLECallback(int client_id) {
+  auto cb = GetCallback(client_id);
+  return android::sp<IBluetoothLowEnergyCallback>(
+      static_cast<IBluetoothLowEnergyCallback*>(cb.get()));
+}
+
+std::shared_ptr<bluetooth::LowEnergyClient>
+BluetoothLowEnergyBinderServer::GetLEClient(int client_id) {
+  return std::static_pointer_cast<bluetooth::LowEnergyClient>(
+      GetInstance(client_id));
+}
+
+void BluetoothLowEnergyBinderServer::OnRegisterInstanceImpl(
+    bluetooth::BLEStatus status,
+    android::sp<IInterface> callback,
+    bluetooth::BluetoothInstance* instance) {
+  VLOG(1) << __func__ << " status: " << status;
+  bluetooth::LowEnergyClient* le_client =
+      static_cast<bluetooth::LowEnergyClient*>(instance);
+  le_client->SetDelegate(this);
+
+  android::sp<IBluetoothLowEnergyCallback> cb(
+      static_cast<IBluetoothLowEnergyCallback*>(callback.get()));
+  cb->OnClientRegistered(
+      status,
+      (status == bluetooth::BLE_STATUS_SUCCESS) ?
+          instance->GetInstanceId() : kInvalidInstanceId);
+}
+
+}  // namespace binder
+}  // namespace ipc
diff --git a/rtkbt/code/bt/service/ipc/binder/bluetooth_low_energy_binder_server.h b/rtkbt/code/bt/service/ipc/binder/bluetooth_low_energy_binder_server.h
new file mode 100755
index 0000000..c060ef8
--- /dev/null
+++ b/rtkbt/code/bt/service/ipc/binder/bluetooth_low_energy_binder_server.h
@@ -0,0 +1,94 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#pragma once
+
+#include <memory>
+
+#include <base/macros.h>
+
+#include "service/common/bluetooth/binder/IBluetoothLowEnergy.h"
+#include "service/common/bluetooth/binder/IBluetoothLowEnergyCallback.h"
+#include "service/common/bluetooth/low_energy_constants.h"
+#include "service/ipc/binder/interface_with_instances_base.h"
+#include "service/low_energy_client.h"
+
+namespace bluetooth {
+class Adapter;
+}  // namespace bluetooth
+
+namespace ipc {
+namespace binder {
+
+// Implements the server side of the IBluetoothLowEnergy interface.
+class BluetoothLowEnergyBinderServer
+    : public BnBluetoothLowEnergy,
+      public InterfaceWithInstancesBase,
+      public bluetooth::LowEnergyClient::Delegate {
+ public:
+  explicit BluetoothLowEnergyBinderServer(bluetooth::Adapter* adapter);
+  ~BluetoothLowEnergyBinderServer() override;
+
+  // IBluetoothLowEnergy overrides:
+  bool RegisterClient(
+      const android::sp<IBluetoothLowEnergyCallback>& callback) override;
+  void UnregisterClient(int client_id) override;
+  void UnregisterAll() override;
+  bool Connect(int client_id, const char* address, bool is_direct) override;
+  bool Disconnect(int client_id, const char* address) override;
+  bool SetMtu(int client_id, const char* address, int mtu) override;
+  bool StartScan(
+      int client_id,
+      const bluetooth::ScanSettings& settings,
+      const std::vector<bluetooth::ScanFilter>& filters) override;
+  bool StopScan(int client_id) override;
+  bool StartMultiAdvertising(
+      int client_id,
+      const bluetooth::AdvertiseData& advertise_data,
+      const bluetooth::AdvertiseData& scan_response,
+      const bluetooth::AdvertiseSettings& settings) override;
+  bool StopMultiAdvertising(int client_id) override;
+
+  // bluetooth::LowEnergyClient::Delegate overrides:
+  void OnConnectionState(bluetooth::LowEnergyClient* client, int status,
+                         const char* address, bool connected) override;
+  void OnMtuChanged(bluetooth::LowEnergyClient* client, int status,
+                    const char* address, int mtu) override;
+  void OnScanResult(bluetooth::LowEnergyClient* client,
+                    const bluetooth::ScanResult& result) override;
+
+ private:
+  // Returns a pointer to the IBluetoothLowEnergyCallback instance associated
+  // with |client_id|. Returns NULL if such a callback cannot be found.
+  android::sp<IBluetoothLowEnergyCallback> GetLECallback(int client_id);
+
+  // Returns a pointer to the LowEnergyClient instance associated with
+  // |client_id|. Returns NULL if such a client cannot be found.
+  std::shared_ptr<bluetooth::LowEnergyClient> GetLEClient(int client_id);
+
+  // InterfaceWithInstancesBase override:
+  void OnRegisterInstanceImpl(
+      bluetooth::BLEStatus status,
+      android::sp<IInterface> callback,
+      bluetooth::BluetoothInstance* instance) override;
+
+  bluetooth::Adapter* adapter_;  // weak
+
+  DISALLOW_COPY_AND_ASSIGN(BluetoothLowEnergyBinderServer);
+};
+
+}  // namespace binder
+}  // namespace ipc
diff --git a/rtkbt/code/bt/service/ipc/binder/interface_with_instances_base.cpp b/rtkbt/code/bt/service/ipc/binder/interface_with_instances_base.cpp
new file mode 100755
index 0000000..0ac9989
--- /dev/null
+++ b/rtkbt/code/bt/service/ipc/binder/interface_with_instances_base.cpp
@@ -0,0 +1,157 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#include "service/ipc/binder/interface_with_instances_base.h"
+
+#include <base/logging.h>
+
+namespace ipc {
+namespace binder {
+
+bool InterfaceWithInstancesBase::RegisterInstanceBase(
+    const android::sp<IInterface>& callback,
+    bluetooth::BluetoothInstanceFactory* factory) {
+  VLOG(2) << __func__;
+  CHECK(factory);
+
+  if (!callback.get()) {
+    LOG(ERROR) << "Cannot register a NULL callback";
+    return false;
+  }
+
+  // Store the callback in the pending list. It will get removed later when the
+  // stack notifies us asynchronously.
+  bluetooth::UUID app_uuid = bluetooth::UUID::GetRandom();
+  if (!pending_callbacks_.Register(app_uuid, callback)) {
+    LOG(ERROR) << "Failed to store |callback| to map";
+    return false;
+  }
+
+  // Create a weak pointer and pass that to the callback to prevent an invalid
+  // access later. Since this object is managed using Android's StrongPointer
+  // (sp) we are using a wp here rather than std::weak_ptr.
+  android::wp<InterfaceWithInstancesBase> weak_ptr_to_this(this);
+
+  bluetooth::BluetoothInstanceFactory::RegisterCallback cb =
+      [weak_ptr_to_this](
+          bluetooth::BLEStatus status,
+          const bluetooth::UUID& in_uuid,
+          std::unique_ptr<bluetooth::BluetoothInstance> instance) {
+        // If the weak pointer was invalidated then there is nothing we can do.
+        android::sp<InterfaceWithInstancesBase> strong_ptr_to_this =
+            weak_ptr_to_this.promote();
+        if (!strong_ptr_to_this.get()) {
+          VLOG(2) << "InterfaceWithInstancesBase was deleted while instance was"
+                  << " being registered";
+          return;
+        }
+
+        strong_ptr_to_this->OnRegisterInstance(
+            status, in_uuid, std::move(instance));
+      };
+
+  if (factory->RegisterInstance(app_uuid, cb))
+    return true;
+
+  LOG(ERROR) << "Failed to register instance";
+  pending_callbacks_.Remove(app_uuid);
+
+  return false;
+}
+
+void InterfaceWithInstancesBase::UnregisterInstanceBase(int instance_id) {
+  VLOG(2) << __func__;
+  std::lock_guard<std::mutex> lock(maps_lock_);
+
+  id_to_cb_.Remove(instance_id);
+  id_to_instance_.erase(instance_id);
+}
+
+void InterfaceWithInstancesBase::UnregisterAllBase() {
+  VLOG(2) << __func__;
+  std::lock_guard<std::mutex> lock(maps_lock_);
+
+  id_to_cb_.Clear();
+  id_to_instance_.clear();
+}
+
+android::sp<IInterface> InterfaceWithInstancesBase::GetCallback(
+    int instance_id) {
+  return id_to_cb_.Get(instance_id);
+}
+
+std::shared_ptr<bluetooth::BluetoothInstance>
+InterfaceWithInstancesBase::GetInstance(int instance_id) {
+  auto iter = id_to_instance_.find(instance_id);
+  if (iter == id_to_instance_.end())
+    return std::shared_ptr<bluetooth::BluetoothInstance>();
+  return iter->second;
+}
+
+void InterfaceWithInstancesBase::OnRegisterInstance(
+    bluetooth::BLEStatus status,
+    const bluetooth::UUID& uuid,
+    std::unique_ptr<bluetooth::BluetoothInstance> instance) {
+  VLOG(2) << __func__ << " - status: " << status;
+
+  // Simply remove the callback from |pending_callbacks_| as it no longer
+  // belongs in there.
+  sp<IInterface> callback = pending_callbacks_.Remove(uuid);
+
+  // |callback| might be NULL if it was removed from the pending list, e.g. the
+  // remote process that owns the callback died.
+  if (!callback.get()) {
+    VLOG(1) << "Callback was removed before the call to \"RegisterInstance\" "
+            << "returned; unregistering instance";
+    return;
+  }
+
+  if (status != bluetooth::BLE_STATUS_SUCCESS) {
+    // The call wasn't successful. Notify the implementation and return.
+    LOG(ERROR) << "Failed to register instance: " << status;
+    OnRegisterInstanceImpl(status, callback, nullptr);
+    return;
+  }
+
+  std::lock_guard<std::mutex> lock(maps_lock_);
+  int instance_id = instance->GetInstanceId();
+  CHECK(instance_id);
+  if (!id_to_cb_.Register(instance_id, callback, this)) {
+    LOG(ERROR) << "Failed to store callback";
+    OnRegisterInstanceImpl(bluetooth::BLE_STATUS_FAILURE, callback, nullptr);
+    return;
+  }
+
+  VLOG(1) << "Registered BluetoothInstance - ID: " << instance_id;
+
+  auto shared_instance =
+      std::shared_ptr<bluetooth::BluetoothInstance>(instance.release());
+  id_to_instance_[instance_id] = shared_instance;
+
+  OnRegisterInstanceImpl(status, callback, shared_instance.get());
+}
+
+void InterfaceWithInstancesBase::OnRemoteCallbackRemoved(const int& key) {
+  VLOG(2) << __func__ << " instance_id: " << key;
+  std::lock_guard<std::mutex> lock(maps_lock_);
+
+  // No need to remove from the callback map as the entry should be already
+  // removed when this callback gets called.
+  id_to_instance_.erase(key);
+}
+
+}  // namespace binder
+}  // namespace ipc
diff --git a/rtkbt/code/bt/service/ipc/binder/interface_with_instances_base.h b/rtkbt/code/bt/service/ipc/binder/interface_with_instances_base.h
new file mode 100755
index 0000000..4e60f46
--- /dev/null
+++ b/rtkbt/code/bt/service/ipc/binder/interface_with_instances_base.h
@@ -0,0 +1,108 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#pragma once
+
+#include <memory>
+#include <unordered_map>
+
+#include <base/macros.h>
+
+#include "service/bluetooth_instance.h"
+#include "service/common/bluetooth/uuid.h"
+#include "service/ipc/binder/remote_callback_map.h"
+
+namespace ipc {
+namespace binder {
+
+// InterfaceWithInstancesBase provides a common base class for Binder interface
+// servers that involve instance callback Binders registered with an integer
+// instance ID over an asynchronous lower-level stack API. This class abstracts
+// away the common procedures of managing pending callbacks, listening to death
+// notifications, and maintaining multiple internal maps in one common base
+// class.
+// TODO: add code example here.
+class InterfaceWithInstancesBase
+    : public RemoteCallbackMap<int, android::IInterface>::Delegate,
+      virtual public android::RefBase {
+ public:
+  InterfaceWithInstancesBase() = default;
+  ~InterfaceWithInstancesBase() override = default;
+
+ protected:
+  // The initial entry point for registering a instance. Invoke this from the
+  // registration API to add a instance/UUID pair to the pending list and set up
+  // the generic asynchronous callback handler and initiate the process with the
+  // given |factory| instance. Returns false, if there were any errors that
+  // could be synchronously reported.
+  bool RegisterInstanceBase(const android::sp<IInterface>& callback,
+                            bluetooth::BluetoothInstanceFactory* factory);
+
+  // Unregister the instance with the given ID, if it was registered before.
+  void UnregisterInstanceBase(int instance_id);
+
+  // Unregisters all registered instances.
+  void UnregisterAllBase();
+
+  // Returns a handle to the lock used to synchronize access to the internal
+  // data structures. Subclasses should acquire this before accessing the maps.
+  std::mutex* maps_lock() { return &maps_lock_; }
+
+  // Returns the callback interface binder that is assigned to the given
+  // instance ID |instance_id|. The returned pointer will contain NULL if an
+  // entry for the given ID cannot be found.
+  android::sp<IInterface> GetCallback(int instance_id);
+
+  // Returns the instance instance that is assigned to the given instance ID
+  // |instance_id|. The returned pointer will contain NULL if an entry for the
+  // given ID cannot be found.
+  std::shared_ptr<bluetooth::BluetoothInstance> GetInstance(
+      int instance_id);
+
+ private:
+  // Base implementation of the register callback.
+  void OnRegisterInstance(
+      bluetooth::BLEStatus status,
+      const bluetooth::UUID& uuid,
+      std::unique_ptr<bluetooth::BluetoothInstance> instance);
+
+  // Called when the callback registration has completed. |instance| is owned by
+  // the base class and should not be deleted by the implementation. If the
+  // operation failed, nullptr will be passed for |instance|.
+  virtual void OnRegisterInstanceImpl(
+      bluetooth::BLEStatus status,
+      android::sp<IInterface> callback,
+      bluetooth::BluetoothInstance* instance) = 0;
+
+  // RemoteCallbackMap<int, IBluetoothLowEnergyCallback>::Delegate override:
+  void OnRemoteCallbackRemoved(const int& key) override;
+
+  // Instances that are pending registration. Once their registration is
+  // complete, the entry will be removed from this map.
+  RemoteCallbackMap<bluetooth::UUID, android::IInterface> pending_callbacks_;
+
+  // We keep two maps here: one from instance_id IDs to callback Binders and one
+  // from instance_id IDs to the BluetoothInstance structures themselves.
+  std::mutex maps_lock_;  // Needed for |id_to_instance_|.
+  RemoteCallbackMap<int, IInterface> id_to_cb_;
+  std::unordered_map<int, std::shared_ptr<bluetooth::BluetoothInstance>>
+      id_to_instance_;
+
+  DISALLOW_COPY_AND_ASSIGN(InterfaceWithInstancesBase);
+};
+
+}  // namespace binder
+}  // namespace ipc
diff --git a/rtkbt/code/bt/service/ipc/binder/ipc_handler_binder.cpp b/rtkbt/code/bt/service/ipc/binder/ipc_handler_binder.cpp
new file mode 100755
index 0000000..c870817
--- /dev/null
+++ b/rtkbt/code/bt/service/ipc/binder/ipc_handler_binder.cpp
@@ -0,0 +1,82 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#include "service/ipc/binder/ipc_handler_binder.h"
+
+#include <base/bind.h>
+#include <base/logging.h>
+#include <base/message_loop/message_loop.h>
+#include <binder/IPCThreadState.h>
+#include <binder/IServiceManager.h>
+#include <binder/ProcessState.h>
+
+#include "service/ipc/binder/bluetooth_binder_server.h"
+
+using android::defaultServiceManager;
+using android::sp;
+using android::status_t;
+using android::String16;
+
+namespace ipc {
+
+IPCHandlerBinder::IPCHandlerBinder(
+    bluetooth::Adapter* adapter,
+    IPCManager::Delegate* delegate)
+    : IPCHandler(adapter, delegate) {
+}
+
+IPCHandlerBinder::~IPCHandlerBinder() {
+}
+
+bool IPCHandlerBinder::Run() {
+  CHECK(adapter());
+
+  // Register the IBluetooth service with the Android ServiceManager.
+  android::sp<binder::BluetoothBinderServer> bt_server =
+      new binder::BluetoothBinderServer(adapter());
+  status_t status = defaultServiceManager()->addService(
+      String16(binder::IBluetooth::kServiceName),
+      bt_server);
+  if (status != android::NO_ERROR) {
+    LOG(ERROR) << "Failed to register Bluetooth service with ServiceManager";
+    return false;
+  }
+
+  // Notify the delegate. We do this in the message loop to avoid reentrancy.
+  if (delegate()) {
+    base::MessageLoop::current()->task_runner()->PostTask(
+        FROM_HERE,
+        base::Bind(&IPCHandlerBinder::NotifyStarted, this));
+  }
+
+  android::ProcessState::self()->startThreadPool();
+
+  return true;
+}
+
+void IPCHandlerBinder::Stop() {
+  // TODO(armansito): There are several methods in android::IPCThreadState that
+  // are related to shutting down the threadpool, however I haven't been able to
+  // make them shut things down cleanly. Figure out the right way to stop the
+  // Binder IPC here.
+}
+
+void IPCHandlerBinder::NotifyStarted() {
+  if (delegate())
+    delegate()->OnIPCHandlerStarted(IPCManager::TYPE_BINDER);
+}
+
+}  // namespace ipc
diff --git a/rtkbt/code/bt/service/ipc/binder/ipc_handler_binder.h b/rtkbt/code/bt/service/ipc/binder/ipc_handler_binder.h
new file mode 100755
index 0000000..ef8621b
--- /dev/null
+++ b/rtkbt/code/bt/service/ipc/binder/ipc_handler_binder.h
@@ -0,0 +1,46 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#pragma once
+
+#include <base/macros.h>
+
+#include "service/ipc/ipc_handler.h"
+#include "service/ipc/ipc_manager.h"
+
+namespace ipc {
+
+// Implements a Binder based IPCHandler.
+class IPCHandlerBinder : public IPCHandler {
+ public:
+  IPCHandlerBinder(bluetooth::Adapter* adapter,
+                   IPCManager::Delegate* delegate);
+  ~IPCHandlerBinder() override;
+
+  // IPCHandler overrides:
+  bool Run() override;
+  void Stop() override;
+
+ private:
+  IPCHandlerBinder() = default;
+
+  // Notify the delegate that IPC has started.
+  void NotifyStarted();
+
+  DISALLOW_COPY_AND_ASSIGN(IPCHandlerBinder);
+};
+
+}  // namespace ipc
diff --git a/rtkbt/code/bt/service/ipc/binder/remote_callback_list.h b/rtkbt/code/bt/service/ipc/binder/remote_callback_list.h
new file mode 100755
index 0000000..aa612fa
--- /dev/null
+++ b/rtkbt/code/bt/service/ipc/binder/remote_callback_list.h
@@ -0,0 +1,207 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#pragma once
+
+#include <functional>
+#include <mutex>
+#include <unordered_map>
+
+#include <base/logging.h>
+#include <base/macros.h>
+#include <binder/IBinder.h>
+#include <binder/IInterface.h>
+
+namespace ipc {
+namespace binder {
+
+// Takes care of the grunt work of maintaining a list of remote interfaces,
+// typically for the use of performing registered callbacks from a remote
+// service. This is a native equivalent of the the android.os.RemoteCallbackList
+// Java class. The type "T" must inherit from android::IInterface.
+//
+// TODO(armansito): We need to unit test this class. Right now it's defined as a
+// simple template interface over the native libbinder types directly and we
+// can't compile libbinder for host unless the Binder kernel module is enabled
+// on the system. Figure out whether to:
+//    1) write the Binder test-code in a new target-only executable;
+//    2) conditionally compile into the host-native test suite if the Binder
+//       module is built;
+//    3) provide a test-only static library that re-defines the libbinder
+//       classes as mocks.
+// (See http://b/23386387)
+//
+// TODO(armansito): We should make this class non-final and the template
+// interface abstract, so that code that depends on this can be unit tested
+// against a mock version of this class.
+//
+// TODO(armansito): Consider submitting this class to frameworks/native/binder.
+template<typename T>
+class RemoteCallbackList final {
+ public:
+  RemoteCallbackList() = default;
+  ~RemoteCallbackList();
+
+  // Register and unregister a callback interface. Registering will
+  // automatically start tracking for death notifications in case the remote
+  // process hosting the Binder dies. In such a case, the Binder is
+  // automatically removed from the list.
+  bool Register(const android::sp<T>& callback);
+  bool Unregister(const android::sp<T>& callback);
+
+  // Calls the given function on each of the contained callbacks. The internal
+  // mutex is locked for the duration of the iteration.
+  void ForEach(const std::function<void(T*)>& callback);
+
+ private:
+  class CallbackDeathRecipient : public android::IBinder::DeathRecipient {
+   public:
+    CallbackDeathRecipient(const android::sp<T>& callback,
+                           RemoteCallbackList* owner);
+
+    android::sp<T> get_callback() const { return callback_; }
+
+    // android::IBinder::DeathRecipient override:
+    void binderDied(const android::wp<android::IBinder>& who) override;
+
+   private:
+    android::sp<T> callback_;
+    RemoteCallbackList<T>* owner_;  // weak
+  };
+
+  // Typedef for internal map container. This keeps track of a given Binder and
+  // a death receiver associated with it.
+  using CallbackMap = std::unordered_map<android::IBinder*,
+                                         android::sp<CallbackDeathRecipient>>;
+
+  bool UnregisterInternal(typename CallbackMap::iterator iter);
+
+  std::mutex map_lock_;
+  CallbackMap callbacks_;
+
+  DISALLOW_COPY_AND_ASSIGN(RemoteCallbackList);
+};
+
+// Template Implementation details below
+// ========================================================
+
+using android::IBinder;
+using android::IInterface;
+using android::sp;
+using android::wp;
+
+template<typename T>
+RemoteCallbackList<T>::~RemoteCallbackList() {
+  std::lock_guard<std::mutex> lock(map_lock_);
+  for (auto iter = callbacks_.begin(); iter != callbacks_.end(); ++iter)
+    UnregisterInternal(iter);
+}
+
+template<typename T>
+bool RemoteCallbackList<T>::Register(const sp<T>& callback) {
+  std::lock_guard<std::mutex> lock(map_lock_);
+
+  sp<IBinder> binder = IInterface::asBinder(callback.get());
+  if (callbacks_.find(binder.get()) != callbacks_.end()) {
+    VLOG(1) << "Callback list already contains given callback";
+    return false;
+  }
+
+  sp<CallbackDeathRecipient> dr(new CallbackDeathRecipient(callback, this));
+
+  if (binder->linkToDeath(dr) != android::NO_ERROR) {
+    LOG(ERROR) << "Failed to link death recipient to binder";
+    return false;
+  }
+
+  callbacks_[binder.get()] = dr;
+
+  VLOG(2) << "Callback successfully registered with list";
+
+  return true;
+}
+
+template<typename T>
+bool RemoteCallbackList<T>::Unregister(const sp<T>& callback) {
+  std::lock_guard<std::mutex> lock(map_lock_);
+
+  sp<IBinder> binder = IInterface::asBinder(callback.get());
+  auto iter = callbacks_.find(binder.get());
+  if (iter == callbacks_.end()) {
+    VLOG(2) << "Given callback not registered with this list";
+    return false;
+  }
+
+  return UnregisterInternal(iter);
+}
+
+template<typename T>
+void RemoteCallbackList<T>::ForEach(const std::function<void(T*)>& callback) {
+  std::lock_guard<std::mutex> lock(map_lock_);
+  for (const auto& iter : callbacks_)
+    callback(iter.second->get_callback().get());
+}
+
+template<typename T>
+bool RemoteCallbackList<T>::UnregisterInternal(
+    typename CallbackMap::iterator iter) {
+  sp<CallbackDeathRecipient> dr = iter->second;
+  callbacks_.erase(iter);
+
+  if (IInterface::asBinder(dr->get_callback().get())->unlinkToDeath(dr) !=
+      android::NO_ERROR) {
+    LOG(ERROR) << "Failed to unlink death recipient from binder";
+
+    // We removed the entry from |map_| but unlinkToDeath failed. There isn't
+    // really much we can do here other than deleting the binder and returning
+    // an error.
+    return false;
+  }
+
+  VLOG(2) << "Callback successfully removed from list";
+
+  return true;
+}
+
+template<typename T>
+RemoteCallbackList<T>::CallbackDeathRecipient::CallbackDeathRecipient(
+    const sp<T>& callback,
+    RemoteCallbackList<T>* owner)
+    : callback_(callback),
+      owner_(owner) {
+  CHECK(callback_.get());
+  CHECK(owner_);
+}
+
+template<typename T>
+void RemoteCallbackList<T>::CallbackDeathRecipient::binderDied(
+    const wp<IBinder>& who) {
+  VLOG(1) << "Received binderDied";
+
+  sp<IBinder> binder = IInterface::asBinder(callback_.get());
+  CHECK(who.unsafe_get() == binder.get());
+
+  // Remove the callback but no need to call unlinkToDeath.
+  std::lock_guard<std::mutex> lock(owner_->map_lock_);
+  auto iter = owner_->callbacks_.find(binder.get());
+  CHECK(iter != owner_->callbacks_.end());
+  owner_->callbacks_.erase(iter);
+
+  VLOG(1) << "Callback from dead process unregistered";
+}
+
+}  // namespace binder
+}  // namespace ipc
diff --git a/rtkbt/code/bt/service/ipc/binder/remote_callback_map.h b/rtkbt/code/bt/service/ipc/binder/remote_callback_map.h
new file mode 100755
index 0000000..f6aaf05
--- /dev/null
+++ b/rtkbt/code/bt/service/ipc/binder/remote_callback_map.h
@@ -0,0 +1,260 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#pragma once
+
+#include <mutex>
+#include <unordered_map>
+
+#include <base/logging.h>
+#include <base/macros.h>
+#include <binder/IBinder.h>
+#include <binder/IInterface.h>
+
+namespace ipc {
+namespace binder {
+
+// A map of remote interfaces where the value type "V" must inherit from
+// android::IInterface. This is just like RemoteCallbackList except it provides
+// a key-value mapping.
+//
+// TODO(armansito): We should make this class non-final and the template
+// interface abstract, so that code that depends on this can be unit tested
+// against a mock version of this class.
+template<typename K, typename V>
+class RemoteCallbackMap final {
+ public:
+  RemoteCallbackMap() = default;
+  ~RemoteCallbackMap();
+
+  // The Delegate interface is used to notify when a registered callback is
+  // removed from the map as a result of the death of the remote process that
+  // owns the registered callback.
+  class Delegate {
+   public:
+    virtual ~Delegate() = default;
+
+    // Called when a remote callback associated with the key |key| has been
+    // removed. This won't get called if the callback was removed as a result of
+    // a call to RemoteCallbackMap::Unregister.
+    virtual void OnRemoteCallbackRemoved(const K& key) = 0;
+  };
+
+  // Register a callback interface and associate it with the given key.
+  // Registering will automatically start tracking for death notifications in
+  // case the remote process hosting the Binder dies. In such a case, the Binder
+  // is automatically removed from the map.
+  //
+  // An optional |delegate| can be passed which will be assocated with the given
+  // key/value pair. |delegate| must outlive this map.
+  bool Register(const K& key,
+                const android::sp<V>& callback,
+                Delegate* delegate = nullptr);
+
+  // Unregisters a previously registered callback with the given key. Returns
+  // false if |key| doesn't exist.
+  bool Unregister(const K& key);
+
+  // Returns the callback associated with the given key. Returns NULL if |key|
+  // doesn't exist.
+  android::sp<V> Get(const K& key);
+
+  // Removes the callback associated with the given key from the map and returns
+  // the value. Returns NULL if the key doesn't exists.
+  android::sp<V> Remove(const K& key);
+
+  // Clear the contents of the map.
+  void Clear();
+
+ private:
+  class CallbackDeathRecipient : public android::IBinder::DeathRecipient {
+   public:
+    CallbackDeathRecipient(
+        const K& key,
+        const android::sp<V>& callback,
+        RemoteCallbackMap<K, V>* owner,
+        Delegate* delegate);
+
+    android::sp<V> get_callback() const { return callback_; }
+
+    // android::IBinder::DeathRecipient override:
+    void binderDied(const android::wp<android::IBinder>& who) override;
+
+   private:
+    K key_;
+    android::sp<V> callback_;
+    RemoteCallbackMap<K, V>* owner_;  // weak
+    Delegate* delegate_;  // weak
+  };
+
+  // Typedef for internal map container.
+  using CallbackMap =
+      std::unordered_map<K, android::sp<CallbackDeathRecipient>>;
+
+  bool UnregisterInternal(typename CallbackMap::iterator iter);
+
+  std::mutex map_lock_;
+  CallbackMap map_;
+
+  DISALLOW_COPY_AND_ASSIGN(RemoteCallbackMap);
+};
+
+// Template Implementation details below
+// ========================================================
+
+using android::IBinder;
+using android::IInterface;
+using android::sp;
+using android::wp;
+using std::lock_guard;
+using std::mutex;
+
+template<typename K, typename V>
+RemoteCallbackMap<K, V>::~RemoteCallbackMap() {
+  Clear();
+}
+
+template<typename K, typename V>
+bool RemoteCallbackMap<K, V>::Register(
+    const K& key,
+    const sp<V>& callback,
+    Delegate* delegate) {
+  lock_guard<mutex> lock(map_lock_);
+
+  if (map_.find(key) != map_.end()) {
+    VLOG(1) << "Callback map already contains key";
+    return false;
+  }
+
+  sp<CallbackDeathRecipient> dr(
+      new CallbackDeathRecipient(key, callback, this, delegate));
+  sp<IBinder> binder = IInterface::asBinder(callback.get());
+  if (binder->linkToDeath(dr) != android::NO_ERROR) {
+    LOG(ERROR) << "Failed to link death recipient to binder";
+    return false;
+  }
+
+  map_[key] = dr;
+
+  VLOG(2) << "Callback successfully registered with map";
+
+  return true;
+}
+
+template<typename K, typename V>
+bool RemoteCallbackMap<K, V>::Unregister(const K& key) {
+  lock_guard<mutex> lock(map_lock_);
+
+  auto iter = map_.find(key);
+  if (iter == map_.end()) {
+    VLOG(1) << "Callback with given key not found";
+    return false;
+  }
+
+  return UnregisterInternal(iter);
+}
+
+template<typename K, typename V>
+sp<V> RemoteCallbackMap<K, V>::Get(const K& key) {
+  lock_guard<mutex> lock(map_lock_);
+
+  auto iter = map_.find(key);
+  if (iter == map_.end())
+    return nullptr;
+
+  return iter->second->get_callback();
+}
+
+template<typename K, typename V>
+sp<V> RemoteCallbackMap<K, V>::Remove(const K& key) {
+  lock_guard<mutex> lock(map_lock_);
+
+  auto iter = map_.find(key);
+  if (iter == map_.end())
+    return nullptr;
+
+  sp<V> val = iter->second->get_callback();
+  UnregisterInternal(iter);
+
+  return val;
+}
+template<typename K, typename V>
+void RemoteCallbackMap<K, V>::Clear() {
+  lock_guard<mutex> lock(map_lock_);
+
+  for (auto iter = map_.begin(); iter != map_.end();)
+    UnregisterInternal(iter++);
+}
+
+template<typename K, typename V>
+bool RemoteCallbackMap<K, V>::UnregisterInternal(
+    typename CallbackMap::iterator iter) {
+  sp<CallbackDeathRecipient> dr = iter->second;
+  map_.erase(iter);
+
+  if (IInterface::asBinder(dr->get_callback().get())->unlinkToDeath(dr) !=
+      android::NO_ERROR) {
+    LOG(ERROR) << "Failed to unlink death recipient from binder";
+
+    // We removed the entry from |map_| but unlinkToDeath failed. There isn't
+    // really much we can do here other than deleting the binder and returning
+    // an error.
+    return false;
+  }
+
+  VLOG(2) << "Callback successfully removed from map";
+
+  return true;
+}
+
+template<typename K, typename V>
+RemoteCallbackMap<K, V>::CallbackDeathRecipient::CallbackDeathRecipient(
+    const K& key,
+    const sp<V>& callback,
+    RemoteCallbackMap<K, V>* owner,
+    Delegate* delegate)
+    : key_(key),
+      callback_(callback),
+      owner_(owner),
+      delegate_(delegate) {
+  CHECK(callback_.get());
+}
+
+template<typename K, typename V>
+void RemoteCallbackMap<K, V>::CallbackDeathRecipient::binderDied(
+    const wp<IBinder>& who) {
+  VLOG(1) << "Received binderDied";
+
+  sp<IBinder> binder = IInterface::asBinder(callback_.get());
+  CHECK(who.unsafe_get() == binder.get());
+
+  // Remove the callback but no need to call unlinkToDeath.
+  {
+    lock_guard<mutex> lock(owner_->map_lock_);
+    auto iter = owner_->map_.find(key_);
+    CHECK(iter != owner_->map_.end());
+    owner_->map_.erase(iter);
+  }
+
+  VLOG(1) << "Callback from dead process unregistered; notifying delegate";
+
+  // Notify delegate.
+  if (delegate_)
+    delegate_->OnRemoteCallbackRemoved(key_);
+}
+
+}  // namespace binder
+}  // namespace ipc
diff --git a/rtkbt/code/bt/service/ipc/ipc_handler.cpp b/rtkbt/code/bt/service/ipc/ipc_handler.cpp
new file mode 100755
index 0000000..ffea0ee
--- /dev/null
+++ b/rtkbt/code/bt/service/ipc/ipc_handler.cpp
@@ -0,0 +1,33 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#include "service/ipc/ipc_handler.h"
+
+#include <base/logging.h>
+
+namespace ipc {
+
+IPCHandler::IPCHandler(bluetooth::Adapter* adapter,
+                       IPCManager::Delegate* delegate)
+    : adapter_(adapter),
+      delegate_(delegate) {
+  CHECK(adapter_);
+}
+
+IPCHandler::~IPCHandler() {
+}
+
+}  // namespace ipc
diff --git a/rtkbt/code/bt/service/ipc/ipc_handler.h b/rtkbt/code/bt/service/ipc/ipc_handler.h
new file mode 100755
index 0000000..b1029ca
--- /dev/null
+++ b/rtkbt/code/bt/service/ipc/ipc_handler.h
@@ -0,0 +1,62 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#pragma once
+
+#include <base/macros.h>
+#include <base/memory/ref_counted.h>
+
+#include "service/ipc/ipc_manager.h"
+
+namespace bluetooth {
+class Adapter;
+}  // namespace bluetooth
+
+namespace ipc {
+
+// IPCHandler is an interface that classes implementing different IPC mechanisms
+// must conform to.
+class IPCHandler : public base::RefCountedThreadSafe<IPCHandler> {
+ public:
+  IPCHandler(bluetooth::Adapter* adapter, IPCManager::Delegate* delegate);
+  virtual ~IPCHandler();
+
+  // Initializes and runs the IPC mechanism. Returns true on success, false
+  // otherwise.
+  virtual bool Run() = 0;
+
+  // Stops the IPC mechanism.
+  virtual void Stop() = 0;
+
+ protected:
+  // Getters for private members to allow subclasses to access them in read-only
+  // fashion.
+  bluetooth::Adapter* adapter() const { return adapter_; }
+  IPCManager::Delegate* delegate() const { return delegate_; }
+
+ private:
+  IPCHandler() = default;
+
+  // Weak reference to the global Adapter instance.
+  bluetooth::Adapter* adapter_;
+
+  // The delegate that is interested in notifications from us.
+  IPCManager::Delegate* delegate_;
+
+  DISALLOW_COPY_AND_ASSIGN(IPCHandler);
+};
+
+}  // namespace ipc
diff --git a/rtkbt/code/bt/service/ipc/ipc_handler_linux.cpp b/rtkbt/code/bt/service/ipc/ipc_handler_linux.cpp
new file mode 100755
index 0000000..b9f181e
--- /dev/null
+++ b/rtkbt/code/bt/service/ipc/ipc_handler_linux.cpp
@@ -0,0 +1,215 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#include "service/ipc/ipc_handler_linux.h"
+
+#include <sys/socket.h>
+#include <sys/un.h>
+
+#include <base/bind.h>
+
+#include "osi/include/socket_utils/sockets.h"
+#include "service/daemon.h"
+#include "service/ipc/linux_ipc_host.h"
+#include "service/settings.h"
+
+namespace ipc {
+
+IPCHandlerLinux::IPCHandlerLinux(bluetooth::Adapter* adapter,
+                               IPCManager::Delegate* delegate)
+    : IPCHandler(adapter, delegate),
+      running_(false),
+      thread_("IPCHandlerLinux"),
+      keep_running_(true) {
+}
+
+IPCHandlerLinux::~IPCHandlerLinux() {
+  // This will only be set if the Settings::create_ipc_socket_path() was
+  // originally provided.
+  if (!socket_path_.empty())
+    unlink(socket_path_.value().c_str());
+}
+
+bool IPCHandlerLinux::Run() {
+  CHECK(!running_);
+
+  const std::string& android_suffix =
+      bluetooth::Daemon::Get()->GetSettings()->android_ipc_socket_suffix();
+  const base::FilePath& path =
+      bluetooth::Daemon::Get()->GetSettings()->create_ipc_socket_path();
+
+  // Both flags cannot be set at the same time.
+  CHECK(android_suffix.empty() || path.empty());
+  if (android_suffix.empty() && path.empty()) {
+    LOG(ERROR) << "No domain socket path provided";
+    return false;
+  }
+
+  CHECK(base::MessageLoop::current());  // An origin event loop is required.
+  origin_task_runner_ = base::MessageLoop::current()->task_runner();
+
+  if (!android_suffix.empty()) {
+    int server_fd = osi_android_get_control_socket(android_suffix.c_str());
+    if (server_fd == -1) {
+      LOG(ERROR) << "Unable to get Android socket from: " << android_suffix;
+      return false;
+    }
+    LOG(INFO) << "Binding to Android server socket:" << android_suffix;
+    socket_.reset(server_fd);
+  } else {
+    LOG(INFO) << "Creating a Unix domain socket:" << path.value();
+
+    // TODO(armansito): This is opens the door to potentially unlinking files in
+    // the current directory that we're not supposed to. For now we will have an
+    // assumption that the daemon runs in a sandbox but we should generally do
+    // this properly.
+    unlink(path.value().c_str());
+
+    base::ScopedFD server_socket(socket(PF_UNIX, SOCK_SEQPACKET, 0));
+    if (!server_socket.is_valid()) {
+      LOG(ERROR) << "Failed to open domain socket for IPC";
+      return false;
+    }
+
+    struct sockaddr_un address;
+    memset(&address, 0, sizeof(address));
+    address.sun_family = AF_UNIX;
+    strncpy(address.sun_path, path.value().c_str(),
+            sizeof(address.sun_path) - 1);
+    if (bind(server_socket.get(), (struct sockaddr*)&address, sizeof(address)) <
+        0) {
+      LOG(ERROR) << "Failed to bind IPC socket to address: " << strerror(errno);
+      return false;
+    }
+
+    socket_.swap(server_socket);
+    socket_path_ = path;
+  }
+
+  CHECK(socket_.is_valid());
+
+  running_ = true;  // Set this here before launching the thread.
+
+  // Start an IO thread and post the listening task.
+  base::Thread::Options options(base::MessageLoop::TYPE_IO, 0);
+  if (!thread_.StartWithOptions(options)) {
+    LOG(ERROR) << "Failed to start IPCHandlerLinux thread";
+    running_ = false;
+    return false;
+  }
+
+  thread_.task_runner()->PostTask(
+      FROM_HERE,
+      base::Bind(&IPCHandlerLinux::StartListeningOnThread, this));
+
+  return true;
+}
+
+void IPCHandlerLinux::Stop() {
+  keep_running_ = false;
+
+  // At this moment the listening thread might be blocking on the accept
+  // syscall. Shutdown and close the server socket before joining the thread to
+  // interrupt accept so that the main thread doesn't keep blocking.
+  shutdown(socket_.get(), SHUT_RDWR);
+  socket_.reset();
+
+  // Join and clean up the thread.
+  thread_.Stop();
+
+  // Thread exited. Notify the delegate. Post this on the event loop so that the
+  // callback isn't reentrant.
+  NotifyStoppedOnOriginThread();
+}
+
+void IPCHandlerLinux::StartListeningOnThread() {
+  CHECK(socket_.is_valid());
+  CHECK(adapter());
+  CHECK(running_);
+
+  LOG(INFO) << "Listening to incoming connections";
+
+  int status = listen(socket_.get(), SOMAXCONN);
+  if (status < 0) {
+    LOG(ERROR) << "Failed to listen on domain socket: " << strerror(errno);
+    origin_task_runner_->PostTask(
+        FROM_HERE,
+        base::Bind(&IPCHandlerLinux::ShutDownOnOriginThread, this));
+    return;
+  }
+
+  NotifyStartedOnOriginThread();
+
+  // TODO(armansito): The code below can cause the daemon to run indefinitely if
+  // the thread is joined while it's in the middle of the EventLoop() call. The
+  // EventLoop() won't exit until a client terminates the connection, however
+  // this can be fixed by using the |thread_|'s MessageLoopForIO instead (since
+  // it gets stopped along with the thread).
+  // TODO(icoolidge): accept simultaneous clients
+  while (keep_running_.load()) {
+    int client_socket = accept4(socket_.get(), nullptr, nullptr, SOCK_NONBLOCK);
+    if (client_socket < 0) {
+      LOG(ERROR) << "Failed to accept client connection: " << strerror(errno);
+      continue;
+    }
+
+    LOG(INFO) << "Established client connection: fd=" << client_socket;
+
+    LinuxIPCHost ipc_host(client_socket, adapter());
+
+    // TODO(armansito): Use |thread_|'s MessageLoopForIO instead of using a
+    // custom event loop to poll from the socket.
+    ipc_host.EventLoop();
+  }
+}
+
+void IPCHandlerLinux::ShutDownOnOriginThread() {
+  LOG(INFO) << "Shutting down IPCHandlerLinux thread";
+  thread_.Stop();
+  running_ = false;
+
+  NotifyStoppedOnCurrentThread();
+}
+
+void IPCHandlerLinux::NotifyStartedOnOriginThread() {
+  if (!delegate())
+    return;
+
+  origin_task_runner_->PostTask(
+      FROM_HERE,
+      base::Bind(&IPCHandlerLinux::NotifyStartedOnCurrentThread, this));
+}
+
+void IPCHandlerLinux::NotifyStartedOnCurrentThread() {
+  if (delegate())
+    delegate()->OnIPCHandlerStarted(IPCManager::TYPE_LINUX);
+}
+
+void IPCHandlerLinux::NotifyStoppedOnOriginThread() {
+  if (!delegate())
+    return;
+
+  origin_task_runner_->PostTask(
+      FROM_HERE,
+      base::Bind(&IPCHandlerLinux::NotifyStoppedOnCurrentThread, this));
+}
+
+void IPCHandlerLinux::NotifyStoppedOnCurrentThread() {
+  if (delegate())
+    delegate()->OnIPCHandlerStopped(IPCManager::TYPE_LINUX);
+}
+
+}  // namespace ipc
diff --git a/rtkbt/code/bt/service/ipc/ipc_handler_linux.h b/rtkbt/code/bt/service/ipc/ipc_handler_linux.h
new file mode 100755
index 0000000..4eaef59
--- /dev/null
+++ b/rtkbt/code/bt/service/ipc/ipc_handler_linux.h
@@ -0,0 +1,86 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#pragma once
+
+#include <atomic>
+
+#include <base/files/file_path.h>
+#include <base/files/scoped_file.h>
+#include <base/macros.h>
+#include <base/threading/thread.h>
+
+#include "service/ipc/ipc_handler.h"
+#include "service/ipc/ipc_manager.h"
+
+namespace base {
+class SingleThreadTaskRunner;
+}  // namespace base
+
+namespace ipc {
+
+// Implements a Linux sequential packet domain-socket based IPCHandler
+class IPCHandlerLinux : public IPCHandler {
+ public:
+  IPCHandlerLinux(bluetooth::Adapter* adapter,
+                 IPCManager::Delegate* delegate);
+  ~IPCHandlerLinux() override;
+
+  // IPCHandler overrides:
+  bool Run() override;
+  void Stop() override;
+
+ private:
+  IPCHandlerLinux() = default;
+
+  // Starts listening for incoming connections. Posted on |thread_| by Run().
+  void StartListeningOnThread();
+
+  // Stops the IPC thread. This helper is needed since base::Thread requires
+  // threads to be stopped on the thread that started them.
+  void ShutDownOnOriginThread();
+
+  // Notifies the delegate that we started or stoppedlistening for incoming
+  // connections.
+  void NotifyStartedOnOriginThread();
+  void NotifyStartedOnCurrentThread();
+  void NotifyStoppedOnOriginThread();
+  void NotifyStoppedOnCurrentThread();
+
+  // True, if the IPC mechanism is running.
+  bool running_;
+
+  // The server socket on which we listen to incoming connections.
+  base::ScopedFD socket_;
+
+  // The file path to |socket_|. This is only set if we create and manage the
+  // life time of the socket.
+  base::FilePath socket_path_;
+
+  // We use a dedicated thread for listening to incoming connections and
+  // polling from the socket to avoid blocking the main thread.
+  base::Thread thread_;
+
+  // Whether or not the listening thread should continue to run.
+  std::atomic<bool> keep_running_;
+
+  // The origin thread's task runner.
+  scoped_refptr<base::SingleThreadTaskRunner> origin_task_runner_;
+
+  DISALLOW_COPY_AND_ASSIGN(IPCHandlerLinux);
+};
+
+}  // namespace ipc
diff --git a/rtkbt/code/bt/service/ipc/ipc_manager.cpp b/rtkbt/code/bt/service/ipc/ipc_manager.cpp
new file mode 100755
index 0000000..0aab054
--- /dev/null
+++ b/rtkbt/code/bt/service/ipc/ipc_manager.cpp
@@ -0,0 +1,81 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#include "service/ipc/ipc_manager.h"
+
+#include "service/ipc/binder/ipc_handler_binder.h"
+#include "service/ipc/ipc_handler_linux.h"
+
+namespace ipc {
+
+IPCManager::IPCManager(bluetooth::Adapter* adapter)
+    : adapter_(adapter) {
+  CHECK(adapter_);
+}
+
+IPCManager::~IPCManager() {
+  // Don't rely on the handlers getting destroyed since another thread might be
+  // holding a reference to them. Instead, explicitly stop them here.
+  if (BinderStarted())
+    binder_handler_->Stop();
+  if (LinuxStarted())
+    linux_handler_->Stop();
+}
+
+bool IPCManager::Start(Type type, Delegate* delegate) {
+  switch (type) {
+  case TYPE_LINUX:
+    if (LinuxStarted()) {
+      LOG(ERROR) << "IPCManagerLinux already started.";
+      return false;
+    }
+
+    linux_handler_ = new IPCHandlerLinux(adapter_, delegate);
+    if (!linux_handler_->Run()) {
+      linux_handler_ = nullptr;
+      return false;
+    }
+    return true;
+
+  case TYPE_BINDER:
+    if (BinderStarted()) {
+      LOG(ERROR) << "IPCManagerBinder already started.";
+      return false;
+    }
+
+    binder_handler_ = new IPCHandlerBinder(adapter_, delegate);
+    if (!binder_handler_->Run()) {
+      binder_handler_ = nullptr;
+      return false;
+    }
+    return true;
+
+  default:
+    LOG(ERROR) << "Unsupported IPC type given: " << type;
+  }
+
+  return false;
+}
+
+bool IPCManager::BinderStarted() const {
+  return binder_handler_.get();
+}
+
+bool IPCManager::LinuxStarted() const {
+  return linux_handler_.get();
+}
+
+}  // namespace ipc
diff --git a/rtkbt/code/bt/service/ipc/ipc_manager.h b/rtkbt/code/bt/service/ipc/ipc_manager.h
new file mode 100755
index 0000000..c0ade0e
--- /dev/null
+++ b/rtkbt/code/bt/service/ipc/ipc_manager.h
@@ -0,0 +1,100 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#pragma once
+
+#include <memory>
+
+#include <base/macros.h>
+#include <base/memory/ref_counted.h>
+
+namespace bluetooth {
+class Adapter;
+}  // namespace bluetooth
+
+namespace ipc {
+
+class IPCHandler;
+
+// IPCManager is a class for initializing and running supported IPC mechanisms.
+// It manages the life-time of different IPC flavors that are available on the
+// system. There are two flavors: a Linux sequential packet domain socket based
+// system and one based on the Binder-based android.bluetooth framework.
+class IPCManager {
+ public:
+  // Possible IPC types.
+  enum Type {
+    TYPE_LINUX,  // IPC based on a Linux sequential packet domain socket
+    TYPE_BINDER  // IPC based on the Binder
+  };
+
+  // Interface for observing events from an IPC mechanism. These methods will be
+  // called on the thread that started the particular IPC type.
+  class Delegate {
+   public:
+    Delegate() = default;
+    virtual ~Delegate() = default;
+
+    // Called when an IPC mechanism has successfully started and is ready for
+    // client connections.
+    virtual void OnIPCHandlerStarted(Type type) = 0;
+
+    // Called when an IPC mechanism has stopped. This may happen due to an error
+    // in initialization or due to a regular shut down routine.
+    virtual void OnIPCHandlerStopped(Type type) = 0;
+
+   private:
+    DISALLOW_COPY_AND_ASSIGN(Delegate);
+  };
+
+  explicit IPCManager(bluetooth::Adapter* adapter);
+  ~IPCManager();
+
+  // Initialize the underlying IPC handler based on |type|, if that type has not
+  // yet been initialized and returns true on success. Returns false if that
+  // type has already been initialized or an error occurs.
+  //
+  // If TYPE_LINUX is given, the file path to use for the domain socket will be
+  // obtained from the global Settings object. Hence, the Settings object must
+  // have been initialized before calling this method.
+  //
+  // |delegate| must out-live the IPCManager and the underlying handler. Users
+  // can guarantee proper clean up by deallocating |delegate| when or after
+  // Delegate::OnIPCHandlerStopped is called. It is safe to destroy |delegate|
+  // after destroying the IPCManager instance, as the destructor will join and
+  // clean up all underlying threads.
+  bool Start(Type type, Delegate* delegate);
+
+  // Returns true if an IPC type has been initialized.
+  bool BinderStarted() const;
+  bool LinuxStarted() const;
+
+ private:
+  IPCManager() = default;
+
+  // Pointers to the different IPC handler classes. These are initialized and
+  // owned by us.
+  scoped_refptr<IPCHandler> binder_handler_;
+  scoped_refptr<IPCHandler> linux_handler_;
+
+  // The Bluetooth adapter instance. This is owned by Daemon so we keep a raw
+  // pointer to it.
+  bluetooth::Adapter* adapter_;
+
+  DISALLOW_COPY_AND_ASSIGN(IPCManager);
+};
+
+}  // namespace ipc
diff --git a/rtkbt/code/bt/service/ipc/linux_ipc_host.cpp b/rtkbt/code/bt/service/ipc/linux_ipc_host.cpp
new file mode 100755
index 0000000..a3176a9
--- /dev/null
+++ b/rtkbt/code/bt/service/ipc/linux_ipc_host.cpp
@@ -0,0 +1,343 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#define LOG_TAG "bt_bluetooth_host"
+
+#include "service/ipc/linux_ipc_host.h"
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <sys/un.h>
+#include <unistd.h>
+
+#include <algorithm>
+
+#include <base/base64.h>
+#include <base/strings/string_number_conversions.h>
+#include <base/strings/string_split.h>
+
+#include "osi/include/osi.h"
+#include "osi/include/log.h"
+#include "service/adapter.h"
+
+using bluetooth::Adapter;
+using bluetooth::UUID;
+
+using namespace bluetooth::gatt;
+
+namespace {
+
+// IPC API is according to:
+// https://docs.google.com/document/d/1eRnku-jAyVU1wGJsLT2CzWi0-8bs2g49s1b3FR_GApM
+const char kSetAdapterNameCommand[] = "set-device-name";
+const char kCreateServiceCommand[] = "create-service";
+const char kDestroyServiceCommand[] = "destroy-service";
+const char kAddCharacteristicCommand[] = "add-characteristic";
+const char kSetCharacteristicValueCommand[] = "set-characteristic-value";
+const char kSetAdvertisementCommand[] = "set-advertisement";
+const char kSetScanResponseCommand[] = "set-scan-response";
+const char kStartServiceCommand[] = "start-service";
+const char kStopServiceCommand[] = "stop-service";
+const char kWriteCharacteristicCommand[] = "write-characteristic";
+
+// Useful values for indexing LinuxIPCHost::pfds_
+// Not super general considering that we should be able to support
+// many GATT FDs owned by one LinuxIPCHost.
+enum {
+  kFdIpc = 0,
+  kFdGatt = 1,
+  kPossibleFds = 2,
+};
+
+bool TokenBool(const std::string& text) {
+  return text == "true";
+}
+
+}  // namespace
+
+namespace ipc {
+
+LinuxIPCHost::LinuxIPCHost(int sockfd, Adapter* adapter)
+    : adapter_(adapter), pfds_(1, {sockfd, POLLIN, 0}) {}
+
+LinuxIPCHost::~LinuxIPCHost() {
+  close(pfds_[0].fd);
+}
+
+bool LinuxIPCHost::EventLoop() {
+  while (true) {
+    int status =
+        TEMP_FAILURE_RETRY(ppoll(pfds_.data(), pfds_.size(), nullptr, nullptr));
+    if (status < 1) {
+      LOG_ERROR(LOG_TAG, "ppoll error");
+      return false;
+    }
+
+    if (pfds_[kFdIpc].revents && !OnMessage()) {
+      return false;
+    }
+
+    if (pfds_.size() == kPossibleFds &&
+        pfds_[kFdGatt].revents &&
+        !OnGattWrite()) {
+      return false;
+    }
+  }
+  return true;
+}
+
+bool LinuxIPCHost::OnSetAdapterName(const std::string& name) {
+  std::string decoded_data;
+  base::Base64Decode(name, &decoded_data);
+  return adapter_->SetName(decoded_data);
+}
+
+bool LinuxIPCHost::OnCreateService(const std::string& service_uuid) {
+  gatt_servers_[service_uuid] = std::unique_ptr<Server>(new Server);
+
+  int gattfd;
+  bool status = gatt_servers_[service_uuid]->Initialize(
+          UUID(service_uuid), &gattfd);
+  if (!status) {
+    LOG_ERROR(LOG_TAG, "Failed to initialize bluetooth");
+    return false;
+  }
+  pfds_.resize(kPossibleFds);
+  pfds_[kFdGatt] = {gattfd, POLLIN, 0};
+  return true;
+}
+
+bool LinuxIPCHost::OnDestroyService(const std::string& service_uuid) {
+  gatt_servers_.erase(service_uuid);
+  close(pfds_[1].fd);
+  pfds_.resize(1);
+  return true;
+}
+
+bool LinuxIPCHost::OnAddCharacteristic(const std::string& service_uuid,
+                               const std::string& characteristic_uuid,
+                               const std::string& control_uuid,
+                               const std::string& options) {
+  std::vector<std::string> option_tokens = base::SplitString(
+      options, ".", base::TRIM_WHITESPACE, base::SPLIT_WANT_ALL);
+
+  int properties_mask = 0;
+  int permissions_mask = 0;
+
+  if (std::find(option_tokens.begin(), option_tokens.end(), "notify") !=
+      option_tokens.end()) {
+    permissions_mask |= kPermissionRead;
+    properties_mask |= kPropertyRead;
+    properties_mask |= kPropertyNotify;
+  }
+  if (std::find(option_tokens.begin(), option_tokens.end(), "read") !=
+      option_tokens.end()) {
+    permissions_mask |= kPermissionRead;
+    properties_mask |= kPropertyRead;
+  }
+  if (std::find(option_tokens.begin(), option_tokens.end(), "write") !=
+      option_tokens.end()) {
+    permissions_mask |= kPermissionWrite;
+    properties_mask |= kPropertyWrite;
+  }
+
+  if (control_uuid.empty()) {
+    gatt_servers_[service_uuid]->AddCharacteristic(
+        UUID(characteristic_uuid), properties_mask, permissions_mask);
+  } else {
+    gatt_servers_[service_uuid]->AddBlob(UUID(characteristic_uuid),
+                                         UUID(control_uuid), properties_mask,
+                                         permissions_mask);
+  }
+  return true;
+}
+
+bool LinuxIPCHost::OnSetCharacteristicValue(const std::string& service_uuid,
+                                    const std::string& characteristic_uuid,
+                                    const std::string& value) {
+  std::string decoded_data;
+  base::Base64Decode(value, &decoded_data);
+  std::vector<uint8_t> blob_data(decoded_data.begin(), decoded_data.end());
+  gatt_servers_[service_uuid]->SetCharacteristicValue(UUID(characteristic_uuid),
+                                                      blob_data);
+  return true;
+}
+
+bool LinuxIPCHost::OnSetAdvertisement(const std::string& service_uuid,
+                              const std::string& advertise_uuids,
+                              const std::string& advertise_data,
+                              const std::string& manufacturer_data,
+                              const std::string& transmit_name) {
+  LOG_INFO(LOG_TAG, "%s: service:%s uuids:%s data:%s", __func__, service_uuid.c_str(),
+           advertise_uuids.c_str(), advertise_data.c_str());
+
+  std::vector<std::string> advertise_uuid_tokens = base::SplitString(
+      advertise_uuids, ".", base::TRIM_WHITESPACE, base::SPLIT_WANT_ALL);
+
+  // string -> vector<UUID>
+  std::vector<UUID> ids;
+  for (const auto& uuid_token : advertise_uuid_tokens)
+    ids.emplace_back(uuid_token);
+
+  std::string decoded_data;
+  base::Base64Decode(advertise_data, &decoded_data);
+  std::vector<uint8_t> decoded_advertise_data(decoded_data.begin(),
+                                              decoded_data.end());
+
+  base::Base64Decode(manufacturer_data, &decoded_data);
+  std::vector<uint8_t> decoded_manufacturer_data(decoded_data.begin(),
+                                                 decoded_data.end());
+
+  gatt_servers_[service_uuid]->SetAdvertisement(ids, decoded_advertise_data,
+                                                decoded_manufacturer_data,
+                                                TokenBool(transmit_name));
+  return true;
+}
+
+bool LinuxIPCHost::OnSetScanResponse(const std::string& service_uuid,
+                             const std::string& scan_response_uuids,
+                             const std::string& scan_response_data,
+                             const std::string& manufacturer_data,
+                             const std::string& transmit_name) {
+  std::vector<std::string> scan_response_uuid_tokens = base::SplitString(
+      scan_response_uuids, ".", base::TRIM_WHITESPACE, base::SPLIT_WANT_ALL);
+
+  // string -> vector<UUID>
+  std::vector<UUID> ids;
+  for (const auto& uuid_token : scan_response_uuid_tokens)
+    ids.emplace_back(uuid_token);
+
+  std::string decoded_data;
+  base::Base64Decode(scan_response_data, &decoded_data);
+  std::vector<uint8_t> decoded_advertise_data(decoded_data.begin(),
+                                              decoded_data.end());
+
+  base::Base64Decode(manufacturer_data, &decoded_data);
+  std::vector<uint8_t> decoded_manufacturer_data(decoded_data.begin(),
+                                                 decoded_data.end());
+
+  gatt_servers_[service_uuid]->SetScanResponse(ids, decoded_advertise_data,
+                                               decoded_manufacturer_data,
+                                               TokenBool(transmit_name));
+  return true;
+}
+
+bool LinuxIPCHost::OnStartService(const std::string& service_uuid) {
+  return gatt_servers_[service_uuid]->Start();
+}
+
+bool LinuxIPCHost::OnStopService(const std::string& service_uuid) {
+  return gatt_servers_[service_uuid]->Stop();
+}
+
+bool LinuxIPCHost::OnMessage() {
+  std::string ipc_msg;
+  ssize_t size;
+
+  OSI_NO_INTR(size = recv(pfds_[kFdIpc].fd, &ipc_msg[0], 0,
+                          MSG_PEEK | MSG_TRUNC));
+  if (-1 == size) {
+    LOG_ERROR(LOG_TAG, "Error reading datagram size: %s", strerror(errno));
+    return false;
+  } else if (0 == size) {
+    LOG_INFO(LOG_TAG, "%s:%d: Connection closed", __func__, __LINE__);
+    return false;
+  }
+
+  ipc_msg.resize(size);
+  OSI_NO_INTR(size = read(pfds_[kFdIpc].fd, &ipc_msg[0], ipc_msg.size()));
+  if (-1 == size) {
+    LOG_ERROR(LOG_TAG, "Error reading IPC: %s", strerror(errno));
+    return false;
+  } else if (0 == size) {
+    LOG_INFO(LOG_TAG, "%s:%d: Connection closed", __func__, __LINE__);
+    return false;
+  }
+
+  std::vector<std::string> tokens = base::SplitString(
+      ipc_msg, "|", base::TRIM_WHITESPACE, base::SPLIT_WANT_ALL);
+  switch (tokens.size()) {
+    case 2:
+      if (tokens[0] == kSetAdapterNameCommand)
+        return OnSetAdapterName(tokens[1]);
+      if (tokens[0] == kCreateServiceCommand)
+        return OnCreateService(tokens[1]);
+      if (tokens[0] == kDestroyServiceCommand)
+        return OnDestroyService(tokens[1]);
+      if (tokens[0] == kStartServiceCommand)
+        return OnStartService(tokens[1]);
+      if (tokens[0] == kStopServiceCommand)
+        return OnStopService(tokens[1]);
+      break;
+    case 4:
+      if (tokens[0] == kSetCharacteristicValueCommand)
+        return OnSetCharacteristicValue(tokens[1], tokens[2], tokens[3]);
+      break;
+    case 5:
+      if (tokens[0] == kAddCharacteristicCommand)
+        return OnAddCharacteristic(tokens[1], tokens[2], tokens[3], tokens[4]);
+      break;
+    case 6:
+      if (tokens[0] == kSetAdvertisementCommand)
+        return OnSetAdvertisement(tokens[1], tokens[2], tokens[3], tokens[4], tokens[5]);
+      if (tokens[0] == kSetScanResponseCommand)
+        return OnSetScanResponse(tokens[1], tokens[2], tokens[3], tokens[4], tokens[5]);
+      break;
+    default:
+      break;
+  }
+
+  LOG_ERROR(LOG_TAG, "Malformed IPC message: %s", ipc_msg.c_str());
+  return false;
+}
+
+bool LinuxIPCHost::OnGattWrite() {
+  UUID::UUID128Bit id;
+  ssize_t r;
+
+  OSI_NO_INTR(r = read(pfds_[kFdGatt].fd, id.data(), id.size()));
+  if (r != id.size()) {
+    LOG_ERROR(LOG_TAG, "Error reading GATT attribute ID");
+    return false;
+  }
+
+  std::vector<uint8_t> value;
+  // TODO(icoolidge): Generalize this for multiple clients.
+  auto server = gatt_servers_.begin();
+  server->second->GetCharacteristicValue(UUID(id), &value);
+  const std::string value_string(value.begin(), value.end());
+  std::string encoded_value;
+  base::Base64Encode(value_string, &encoded_value);
+
+  std::string transmit(kWriteCharacteristicCommand);
+  transmit += "|" + server->first;
+  transmit += "|" + base::HexEncode(id.data(), id.size());
+  transmit += "|" + encoded_value;
+
+  OSI_NO_INTR(r = write(pfds_[kFdIpc].fd, transmit.data(), transmit.size()));
+  if (-1 == r) {
+    LOG_ERROR(LOG_TAG, "Error replying to IPC: %s", strerror(errno));
+    return false;
+  }
+
+  return true;
+}
+
+}  // namespace ipc
diff --git a/rtkbt/code/bt/service/ipc/linux_ipc_host.h b/rtkbt/code/bt/service/ipc/linux_ipc_host.h
new file mode 100755
index 0000000..48d25cb
--- /dev/null
+++ b/rtkbt/code/bt/service/ipc/linux_ipc_host.h
@@ -0,0 +1,107 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+#pragma once
+
+#include <poll.h>
+
+#include <memory>
+#include <string>
+#include <unordered_map>
+
+#include "service/common/bluetooth/uuid.h"
+#include "service/gatt_server_old.h"
+
+namespace bluetooth {
+class Adapter;
+}  // namespace bluetooth
+
+namespace ipc {
+
+// This implements a single threaded event loop which dispatches
+// reads from a set of FDs (pfds_) to a set of handlers.
+// Reads from the GATT pipe read end will result in a write to
+// to the IPC socket, and vise versa.
+class LinuxIPCHost {
+ public:
+  // LinuxIPCHost owns the passed sockfd.
+  LinuxIPCHost(int sockfd, bluetooth::Adapter* adapter);
+  ~LinuxIPCHost();
+
+  // Synchronously handle all events on input FDs.
+  bool EventLoop();
+
+ private:
+  // Handler for IPC message receives.
+  // Decodes protocol and dispatches to another handler.
+  bool OnMessage();
+
+  // Handler for GATT characteristic writes.
+  // Encodes to protocol and transmits IPC.
+  bool OnGattWrite();
+
+  // Applies adapter name changes to stack.
+  bool OnSetAdapterName(const std::string& name);
+
+  // Handles service creation.
+  bool OnCreateService(const std::string& service_uuid);
+
+  // Handles service destruction.
+  bool OnDestroyService(const std::string& service_uuid);
+
+  // Creates a characteristic for a service.
+  bool OnAddCharacteristic(const std::string& service_uuid,
+                           const std::string& characteristic_uuid,
+                           const std::string& control_uuid,
+                           const std::string& options);
+
+  // Sets the value of a characetistic.
+  bool OnSetCharacteristicValue(const std::string& service_uuid,
+                                const std::string& characteristic_uuid,
+                                const std::string& value);
+
+  // Applies settings to service advertisement.
+  bool OnSetAdvertisement(const std::string& service_uuid,
+                          const std::string& advertise_uuids,
+                          const std::string& advertise_data,
+                          const std::string& manufacturer_data,
+                          const std::string& transmit_name);
+
+  // Applies settings to scan response.
+  bool OnSetScanResponse(const std::string& service_uuid,
+                         const std::string& advertise_uuids,
+                         const std::string& advertise_data,
+                         const std::string& manufacturer_data,
+                         const std::string& transmit_name);
+
+  // Starts service (advertisement and connections)
+  bool OnStartService(const std::string& service_uuid);
+
+  // Stops service.
+  bool OnStopService(const std::string& service_uuid);
+
+  // weak reference.
+  bluetooth::Adapter *adapter_;
+
+  // File descripters that we will block against.
+  std::vector<struct pollfd> pfds_;
+
+  // Container for multiple GATT servers. Currently only one is supported.
+  // TODO(icoolidge): support many to one for real.
+  std::unordered_map<std::string, std::unique_ptr<bluetooth::gatt::Server>>
+      gatt_servers_;
+};
+
+}  // namespace ipc
diff --git a/rtkbt/code/bt/service/logging_helpers.cpp b/rtkbt/code/bt/service/logging_helpers.cpp
new file mode 100755
index 0000000..287a763
--- /dev/null
+++ b/rtkbt/code/bt/service/logging_helpers.cpp
@@ -0,0 +1,149 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+#include "logging_helpers.h"
+
+#include <string.h>
+
+#include <string>
+
+#define CASE_RETURN_TEXT(code) \
+  case code:                   \
+    return #code
+
+const char *BtAvConnectionStateText(const btav_connection_state_t state) {
+  switch (state) {
+    CASE_RETURN_TEXT(BTAV_CONNECTION_STATE_DISCONNECTED);
+    CASE_RETURN_TEXT(BTAV_CONNECTION_STATE_CONNECTING);
+    CASE_RETURN_TEXT(BTAV_CONNECTION_STATE_CONNECTED);
+    CASE_RETURN_TEXT(BTAV_CONNECTION_STATE_DISCONNECTING);
+    default:
+      return "Invalid AV connection state";
+  }
+}
+
+const char *BtAvAudioStateText(const btav_audio_state_t state) {
+  switch (state) {
+    CASE_RETURN_TEXT(BTAV_AUDIO_STATE_REMOTE_SUSPEND);
+    CASE_RETURN_TEXT(BTAV_AUDIO_STATE_STOPPED);
+    CASE_RETURN_TEXT(BTAV_AUDIO_STATE_STARTED);
+    default:
+      return "Invalid audio state";
+  }
+}
+
+const char *BtTransportText(const btgatt_transport_t t) {
+  switch(t) {
+    CASE_RETURN_TEXT(GATT_TRANSPORT_AUTO);
+    CASE_RETURN_TEXT(GATT_TRANSPORT_BREDR);
+    CASE_RETURN_TEXT(GATT_TRANSPORT_LE);
+    default:
+      return "unknown transport";
+  }
+}
+
+const char *BtStateText(const bt_state_t state) {
+  switch (state) {
+    CASE_RETURN_TEXT(BT_STATE_OFF);
+    CASE_RETURN_TEXT(BT_STATE_ON);
+    default:
+      return "unknown state code";
+  }
+}
+
+const char *BtDiscoveryStateText(const bt_discovery_state_t state) {
+  switch (state) {
+    CASE_RETURN_TEXT(BT_DISCOVERY_STOPPED);
+    CASE_RETURN_TEXT(BT_DISCOVERY_STARTED);
+    default:
+      return "unknown discovery state code";
+  }
+}
+
+const char *BtScanModeText(const bt_scan_mode_t mode) {
+  switch (mode) {
+    CASE_RETURN_TEXT(BT_SCAN_MODE_NONE);
+    CASE_RETURN_TEXT(BT_SCAN_MODE_CONNECTABLE);
+    CASE_RETURN_TEXT(BT_SCAN_MODE_CONNECTABLE_DISCOVERABLE);
+    default:
+      return "unknown scan mode";
+  }
+}
+
+const char *BtStatusText(const bt_status_t status) {
+  switch (status) {
+    CASE_RETURN_TEXT(BT_STATUS_SUCCESS);
+    CASE_RETURN_TEXT(BT_STATUS_FAIL);
+    CASE_RETURN_TEXT(BT_STATUS_NOT_READY);
+    CASE_RETURN_TEXT(BT_STATUS_NOMEM);
+    CASE_RETURN_TEXT(BT_STATUS_DONE);
+    CASE_RETURN_TEXT(BT_STATUS_BUSY);
+    CASE_RETURN_TEXT(BT_STATUS_UNSUPPORTED);
+    CASE_RETURN_TEXT(BT_STATUS_PARM_INVALID);
+    CASE_RETURN_TEXT(BT_STATUS_UNHANDLED);
+    CASE_RETURN_TEXT(BT_STATUS_AUTH_FAILURE);
+    CASE_RETURN_TEXT(BT_STATUS_RMT_DEV_DOWN);
+    CASE_RETURN_TEXT(BT_STATUS_AUTH_REJECTED);
+    default:
+      return "unknown status code";
+  }
+}
+
+const char *BtPropertyText(const bt_property_type_t prop) {
+  switch (prop) {
+    CASE_RETURN_TEXT(BT_PROPERTY_BDNAME);
+    CASE_RETURN_TEXT(BT_PROPERTY_BDADDR);
+    CASE_RETURN_TEXT(BT_PROPERTY_UUIDS);
+    CASE_RETURN_TEXT(BT_PROPERTY_CLASS_OF_DEVICE);
+    CASE_RETURN_TEXT(BT_PROPERTY_TYPE_OF_DEVICE);
+    CASE_RETURN_TEXT(BT_PROPERTY_SERVICE_RECORD);
+    CASE_RETURN_TEXT(BT_PROPERTY_ADAPTER_SCAN_MODE);
+    CASE_RETURN_TEXT(BT_PROPERTY_ADAPTER_BONDED_DEVICES);
+    CASE_RETURN_TEXT(BT_PROPERTY_ADAPTER_DISCOVERY_TIMEOUT);
+    CASE_RETURN_TEXT(BT_PROPERTY_REMOTE_FRIENDLY_NAME);
+    CASE_RETURN_TEXT(BT_PROPERTY_REMOTE_RSSI);
+    CASE_RETURN_TEXT(BT_PROPERTY_REMOTE_VERSION_INFO);
+    CASE_RETURN_TEXT(BT_PROPERTY_LOCAL_LE_FEATURES);
+    CASE_RETURN_TEXT(BT_PROPERTY_REMOTE_DEVICE_TIMESTAMP);
+    default:
+      return "Invalid property";
+  }
+}
+
+const char *BtEventText(const bt_cb_thread_evt evt) {
+  switch (evt) {
+    CASE_RETURN_TEXT(ASSOCIATE_JVM);
+    CASE_RETURN_TEXT(DISASSOCIATE_JVM);
+    default:
+      return "unknown state code";
+  }
+}
+
+const char *BtAclText(const bt_acl_state_t code) {
+  switch (code) {
+    CASE_RETURN_TEXT(BT_ACL_STATE_CONNECTED);
+    CASE_RETURN_TEXT(BT_ACL_STATE_DISCONNECTED);
+    default:
+      return "unknown ACL code";
+  }
+}
+
+std::string BtAddrString(const bt_bdaddr_t *addr) {
+  char buffer[20];
+  snprintf(buffer, sizeof(buffer), "%02X:%02X:%02X:%02X:%02X:%02X",
+           addr->address[0], addr->address[1], addr->address[2],
+           addr->address[3], addr->address[4], addr->address[5]);
+  return std::string(buffer);
+}
diff --git a/rtkbt/code/bt/service/logging_helpers.h b/rtkbt/code/bt/service/logging_helpers.h
new file mode 100755
index 0000000..6eb1cb1
--- /dev/null
+++ b/rtkbt/code/bt/service/logging_helpers.h
@@ -0,0 +1,47 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+#pragma once
+
+#include <string.h>
+
+#include <string>
+
+#include "hardware/bluetooth.h"
+#include "hardware/bt_av.h"
+#include "hardware/bt_gatt_types.h"
+
+const char *BtAvConnectionStateText(const btav_connection_state_t state);
+
+const char *BtAvAudioStateText(const btav_audio_state_t state);
+
+const char *BtTransportText(const btgatt_transport_t t);
+
+const char *BtStateText(const bt_state_t state);
+
+const char *BtDiscoveryStateText(const bt_discovery_state_t);
+
+const char *BtScanModeText(const bt_scan_mode_t mode);
+
+const char *BtStatusText(const bt_status_t status);
+
+const char *BtPropertyText(const bt_property_type_t prop);
+
+const char *BtEventText(const bt_cb_thread_evt evt);
+
+const char *BtAclText(const bt_acl_state_t state);
+
+// TODO(icoolidge): Address object.
+std::string BtAddrString(const bt_bdaddr_t *addr);
diff --git a/rtkbt/code/bt/service/low_energy_client.cpp b/rtkbt/code/bt/service/low_energy_client.cpp
new file mode 100755
index 0000000..cc568de
--- /dev/null
+++ b/rtkbt/code/bt/service/low_energy_client.cpp
@@ -0,0 +1,895 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#include "service/low_energy_client.h"
+
+#include <base/logging.h>
+
+#include "service/adapter.h"
+#include "service/common/bluetooth/util/address_helper.h"
+#include "service/logging_helpers.h"
+#include "stack/include/bt_types.h"
+#include "stack/include/hcidefs.h"
+
+using std::lock_guard;
+using std::mutex;
+
+namespace bluetooth {
+
+namespace {
+
+// 31 + 31 for advertising data and scan response. This is the maximum length
+// TODO(armansito): Fix the HAL to return a concatenated blob that contains the
+// true length of each field and also provide a length parameter so that we
+// can support advertising length extensions in the future.
+const size_t kScanRecordLength = 62;
+
+BLEStatus GetBLEStatus(int status) {
+  if (status == BT_STATUS_FAIL)
+    return BLE_STATUS_FAILURE;
+
+  return static_cast<BLEStatus>(status);
+}
+
+// Returns the length of the given scan record array. We have to calculate this
+// based on the maximum possible data length and the TLV data. See TODO above
+// |kScanRecordLength|.
+size_t GetScanRecordLength(uint8_t* bytes) {
+  for (size_t i = 0, field_len = 0; i < kScanRecordLength;
+       i += (field_len + 1)) {
+    field_len = bytes[i];
+
+    // Assert here that the data returned from the stack is correctly formatted
+    // in TLV form and that the length of the current field won't exceed the
+    // total data length.
+    CHECK(i + field_len < kScanRecordLength);
+
+    // If the field length is zero and we haven't reached the maximum length,
+    // then we have found the length, as the stack will pad the data with zeros
+    // accordingly.
+    if (field_len == 0)
+      return i;
+  }
+
+  // We have reached the end.
+  return kScanRecordLength;
+}
+
+// TODO(armansito): BTIF currently expects each advertising field in a
+// specific format passed directly in arguments. We should fix BTIF to accept
+// the advertising data directly instead.
+struct HALAdvertiseData {
+  std::vector<uint8_t> manufacturer_data;
+  std::vector<uint8_t> service_data;
+  std::vector<uint8_t> service_uuid;
+};
+
+bool ProcessUUID(const uint8_t* uuid_data, size_t uuid_len, UUID* out_uuid) {
+  // BTIF expects a single 128-bit UUID to be passed in little-endian form, so
+  // we need to convert into that from raw data.
+  // TODO(armansito): We have three repeated if bodies below only because UUID
+  // accepts std::array which requires constexpr lengths. We should just have a
+  // single UUID constructor that takes in an std::vector instead.
+  if (uuid_len == UUID::kNumBytes16) {
+    UUID::UUID16Bit uuid_bytes;
+    for (size_t i = 0; i < uuid_len; ++i)
+      uuid_bytes[uuid_len - i - 1] = uuid_data[i];
+    *out_uuid = UUID(uuid_bytes);
+  } else if (uuid_len == UUID::kNumBytes32) {
+    UUID::UUID32Bit uuid_bytes;
+    for (size_t i = 0; i < uuid_len; ++i)
+      uuid_bytes[uuid_len - i - 1] = uuid_data[i];
+    *out_uuid = UUID(uuid_bytes);
+  } else if (uuid_len == UUID::kNumBytes128) {
+    UUID::UUID128Bit uuid_bytes;
+    for (size_t i = 0; i < uuid_len; ++i)
+      uuid_bytes[uuid_len - i - 1] = uuid_data[i];
+    *out_uuid = UUID(uuid_bytes);
+  } else {
+    LOG(ERROR) << "Invalid UUID length";
+    return false;
+  }
+
+  return true;
+}
+
+bool ProcessServiceData(const uint8_t* data,
+        uint8_t uuid_len,
+        HALAdvertiseData* out_data) {
+  size_t field_len = data[0];
+
+  // Minimum packet size should be equal to the uuid length + 1 to include
+  // the byte for the type of packet
+  if (field_len < uuid_len + 1) {
+    // Invalid packet size
+    return false;
+  }
+
+  if (!out_data->service_data.empty()) {
+    // More than one Service Data is not allowed due to the limitations
+    // of the HAL API. We error in order to make sure there
+    // is no ambiguity on which data to send.
+    VLOG(1) << "More than one Service Data entry not allowed";
+    return false;
+  }
+
+  const uint8_t* service_uuid = data + 2;
+  UUID uuid;
+  if (!ProcessUUID(service_uuid, uuid_len, &uuid))
+    return false;
+
+  UUID::UUID128Bit uuid_bytes = uuid.GetFullLittleEndian();
+  const std::vector<uint8_t> temp_uuid(
+      uuid_bytes.data(), uuid_bytes.data() + uuid_bytes.size());
+
+  // This section is to make sure that there is no UUID conflict
+  if (out_data->service_uuid.empty()) {
+    out_data->service_uuid = temp_uuid;
+  } else if (out_data->service_uuid != temp_uuid) {
+    // Mismatch in uuid passed through service data and uuid passed
+    // through uuid field
+    VLOG(1) << "More than one UUID entry not allowed";
+    return false;
+  }  // else do nothing as UUID is already properly assigned
+
+  // Use + uuid_len + 2 here in order to skip over a
+  // uuid contained in the beggining of the field
+  const uint8_t* srv_data = data + uuid_len + 2;
+
+
+  out_data->service_data.insert(
+      out_data->service_data.begin(),
+      srv_data, srv_data + field_len - uuid_len - 1);
+
+  return true;
+}
+
+bool ProcessAdvertiseData(const AdvertiseData& adv,
+                          HALAdvertiseData* out_data) {
+  CHECK(out_data);
+  CHECK(out_data->manufacturer_data.empty());
+  CHECK(out_data->service_data.empty());
+  CHECK(out_data->service_uuid.empty());
+
+  const auto& data = adv.data();
+  size_t len = data.size();
+  for (size_t i = 0, field_len = 0; i < len; i += (field_len + 1)) {
+    // The length byte is the first byte in the adv. "TLV" format.
+    field_len = data[i];
+
+    // The type byte is the next byte in the adv. "TLV" format.
+    uint8_t type = data[i + 1];
+
+    switch (type) {
+    case HCI_EIR_MANUFACTURER_SPECIFIC_TYPE: {
+      // TODO(armansito): BTIF doesn't allow setting more than one
+      // manufacturer-specific data entry. This is something we should fix. For
+      // now, fail if more than one entry was set.
+      if (!out_data->manufacturer_data.empty()) {
+        LOG(ERROR) << "More than one Manufacturer Specific Data entry not allowed";
+        return false;
+      }
+
+      // The value bytes start at the next byte in the "TLV" format.
+      const uint8_t* mnf_data = data.data() + i + 2;
+      out_data->manufacturer_data.insert(
+          out_data->manufacturer_data.begin(),
+          mnf_data, mnf_data + field_len - 1);
+      break;
+    }
+    case HCI_EIR_MORE_16BITS_UUID_TYPE:
+    case HCI_EIR_COMPLETE_16BITS_UUID_TYPE:
+    case HCI_EIR_MORE_32BITS_UUID_TYPE:
+    case HCI_EIR_COMPLETE_32BITS_UUID_TYPE:
+    case HCI_EIR_MORE_128BITS_UUID_TYPE:
+    case HCI_EIR_COMPLETE_128BITS_UUID_TYPE: {
+      const uint8_t* uuid_data = data.data() + i + 2;
+      size_t uuid_len = field_len - 1;
+      UUID uuid;
+      if (!ProcessUUID(uuid_data, uuid_len, &uuid))
+        return false;
+
+      UUID::UUID128Bit uuid_bytes = uuid.GetFullLittleEndian();
+
+      if (!out_data->service_uuid.empty() &&
+          memcmp(out_data->service_uuid.data(),
+                 uuid_bytes.data(), uuid_bytes.size()) != 0) {
+        // More than one UUID is not allowed due to the limitations
+        // of the HAL API. We error in order to make sure there
+        // is no ambiguity on which UUID to send. Also makes sure that
+        // UUID Hasn't been set by service data first
+        LOG(ERROR) << "More than one UUID entry not allowed";
+        return false;
+      }
+
+      out_data->service_uuid.assign(
+          uuid_bytes.data(), uuid_bytes.data() + UUID::kNumBytes128);
+      break;
+    }
+    case HCI_EIR_SERVICE_DATA_16BITS_UUID_TYPE: {
+      if (!ProcessServiceData(data.data() + i, 2, out_data))
+        return false;
+      break;
+    }
+    case HCI_EIR_SERVICE_DATA_32BITS_UUID_TYPE: {
+      if (!ProcessServiceData(data.data() + i, 4, out_data))
+        return false;
+      break;
+    }
+    case HCI_EIR_SERVICE_DATA_128BITS_UUID_TYPE: {
+      if (!ProcessServiceData(data.data() + i, 16, out_data))
+        return false;
+      break;
+    }
+    // TODO(armansito): Support other fields.
+    default:
+      VLOG(1) << "Unrecognized EIR field: " << type;
+      return false;
+    }
+  }
+
+  return true;
+}
+
+// The Bluetooth Core Specification defines time interval (e.g. Page Scan
+// Interval, Advertising Interval, etc) units as 0.625 milliseconds (or 1
+// Baseband slot). The HAL advertising functions expect the interval in this
+// unit. This function maps an AdvertiseSettings::Mode value to the
+// corresponding time unit.
+int GetAdvertisingIntervalUnit(AdvertiseSettings::Mode mode) {
+  int ms;
+
+  switch (mode) {
+  case AdvertiseSettings::MODE_BALANCED:
+    ms = kAdvertisingIntervalMediumMs;
+    break;
+  case AdvertiseSettings::MODE_LOW_LATENCY:
+    ms = kAdvertisingIntervalLowMs;
+    break;
+  case AdvertiseSettings::MODE_LOW_POWER:
+    // Fall through
+  default:
+    ms = kAdvertisingIntervalHighMs;
+    break;
+  }
+
+  // Convert milliseconds Bluetooth units.
+  return (ms * 1000) / 625;
+}
+
+struct AdvertiseParams {
+  int min_interval;
+  int max_interval;
+  int event_type;
+  int tx_power_level;
+  int timeout_s;
+};
+
+void GetAdvertiseParams(const AdvertiseSettings& settings, bool has_scan_rsp,
+                        AdvertiseParams* out_params) {
+  CHECK(out_params);
+
+  out_params->min_interval = GetAdvertisingIntervalUnit(settings.mode());
+  out_params->max_interval =
+      out_params->min_interval + kAdvertisingIntervalDeltaUnit;
+
+  if (settings.connectable())
+    out_params->event_type = kAdvertisingEventTypeConnectable;
+  else if (has_scan_rsp)
+    out_params->event_type = kAdvertisingEventTypeScannable;
+  else
+    out_params->event_type = kAdvertisingEventTypeNonConnectable;
+
+  out_params->tx_power_level = settings.tx_power_level();
+  out_params->timeout_s = settings.timeout().InSeconds();
+}
+
+}  // namespace
+
+// LowEnergyClient implementation
+// ========================================================
+
+LowEnergyClient::LowEnergyClient(
+    Adapter& adapter, const UUID& uuid, int client_id)
+    : adapter_(adapter),
+      app_identifier_(uuid),
+      client_id_(client_id),
+      adv_data_needs_update_(false),
+      scan_rsp_needs_update_(false),
+      is_setting_adv_data_(false),
+      adv_started_(false),
+      adv_start_callback_(nullptr),
+      adv_stop_callback_(nullptr),
+      scan_started_(false) {
+}
+
+LowEnergyClient::~LowEnergyClient() {
+  // Automatically unregister the client.
+  VLOG(1) << "LowEnergyClient unregistering client: " << client_id_;
+
+  // Unregister as observer so we no longer receive any callbacks.
+  hal::BluetoothGattInterface::Get()->RemoveClientObserver(this);
+
+  // Stop advertising and ignore the result.
+  hal::BluetoothGattInterface::Get()->
+      GetClientHALInterface()->multi_adv_disable(client_id_);
+  hal::BluetoothGattInterface::Get()->
+      GetClientHALInterface()->unregister_client(client_id_);
+
+  // Stop any scans started by this client.
+  if (scan_started_.load())
+    StopScan();
+}
+
+bool LowEnergyClient::Connect(std::string address, bool is_direct) {
+  VLOG(2) << __func__ << "Address: " << address << " is_direct: " << is_direct;
+
+  bt_bdaddr_t bda;
+  util::BdAddrFromString(address, &bda);
+
+  bt_status_t status = hal::BluetoothGattInterface::Get()->
+      GetClientHALInterface()->connect(client_id_, &bda, is_direct,
+                                       BT_TRANSPORT_LE);
+  if (status != BT_STATUS_SUCCESS) {
+    LOG(ERROR) << "HAL call to connect failed";
+    return false;
+  }
+
+  return true;
+}
+
+bool LowEnergyClient::Disconnect(std::string address) {
+  VLOG(2) << __func__ << "Address: " << address;
+
+  bt_bdaddr_t bda;
+  util::BdAddrFromString(address, &bda);
+
+  std::map<const bt_bdaddr_t, int>::iterator conn_id;
+  {
+    lock_guard<mutex> lock(connection_fields_lock_);
+    conn_id = connection_ids_.find(bda);
+    if (conn_id == connection_ids_.end()) {
+      LOG(WARNING) << "Can't disconnect, no existing connection to " << address;
+      return false;
+    }
+  }
+
+  bt_status_t status = hal::BluetoothGattInterface::Get()->
+      GetClientHALInterface()->disconnect(client_id_, &bda, conn_id->second);
+  if (status != BT_STATUS_SUCCESS) {
+    LOG(ERROR) << "HAL call to disconnect failed";
+    return false;
+  }
+
+  return true;
+}
+
+bool LowEnergyClient::SetMtu(std::string address, int mtu) {
+  VLOG(2) << __func__ << "Address: " << address
+          << " MTU: " << mtu;
+
+  bt_bdaddr_t bda;
+  util::BdAddrFromString(address, &bda);
+
+  std::map<const bt_bdaddr_t, int>::iterator conn_id;
+  {
+    lock_guard<mutex> lock(connection_fields_lock_);
+    conn_id = connection_ids_.find(bda);
+    if (conn_id == connection_ids_.end()) {
+      LOG(WARNING) << "Can't set MTU, no existing connection to " << address;
+      return false;
+    }
+  }
+
+  bt_status_t status = hal::BluetoothGattInterface::Get()->
+      GetClientHALInterface()->configure_mtu(conn_id->second, mtu);
+  if (status != BT_STATUS_SUCCESS) {
+    LOG(ERROR) << "HAL call to set MTU failed";
+    return false;
+  }
+
+  return true;
+}
+
+void LowEnergyClient::SetDelegate(Delegate* delegate) {
+  lock_guard<mutex> lock(delegate_mutex_);
+  delegate_ = delegate;
+}
+
+bool LowEnergyClient::StartScan(const ScanSettings& settings,
+                                const std::vector<ScanFilter>& filters) {
+  VLOG(2) << __func__;
+
+  // Cannot start a scan if the adapter is not enabled.
+  if (!adapter_.IsEnabled()) {
+    LOG(ERROR) << "Cannot scan while Bluetooth is disabled";
+    return false;
+  }
+
+  // TODO(jpawlowski): Push settings and filtering logic below the HAL.
+  bt_status_t status = hal::BluetoothGattInterface::Get()->
+      StartScan(client_id_);
+  if (status != BT_STATUS_SUCCESS) {
+    LOG(ERROR) << "Failed to initiate scanning for client: " << client_id_;
+    return false;
+  }
+
+  scan_started_ = true;
+  return true;
+}
+
+bool LowEnergyClient::StopScan() {
+  VLOG(2) << __func__;
+
+  // TODO(armansito): We don't support batch scanning yet so call
+  // StopRegularScanForClient directly. In the future we will need to
+  // conditionally call a batch scan API here.
+  bt_status_t status = hal::BluetoothGattInterface::Get()->
+      StopScan(client_id_);
+  if (status != BT_STATUS_SUCCESS) {
+    LOG(ERROR) << "Failed to stop scan for client: " << client_id_;
+    return false;
+  }
+
+  scan_started_ = false;
+  return true;
+}
+
+bool LowEnergyClient::StartAdvertising(const AdvertiseSettings& settings,
+                                       const AdvertiseData& advertise_data,
+                                       const AdvertiseData& scan_response,
+                                       const StatusCallback& callback) {
+  VLOG(2) << __func__;
+  lock_guard<mutex> lock(adv_fields_lock_);
+
+  if (IsAdvertisingStarted()) {
+    LOG(WARNING) << "Already advertising";
+    return false;
+  }
+
+  if (IsStartingAdvertising()) {
+    LOG(WARNING) << "StartAdvertising already pending";
+    return false;
+  }
+
+  if (!advertise_data.IsValid()) {
+    LOG(ERROR) << "Invalid advertising data";
+    return false;
+  }
+
+  if (!scan_response.IsValid()) {
+    LOG(ERROR) << "Invalid scan response data";
+    return false;
+  }
+
+  CHECK(!adv_data_needs_update_.load());
+  CHECK(!scan_rsp_needs_update_.load());
+
+  adv_data_ = advertise_data;
+  scan_response_ = scan_response;
+  advertise_settings_ = settings;
+
+  AdvertiseParams params;
+  GetAdvertiseParams(settings, !scan_response_.data().empty(), &params);
+
+  bt_status_t status = hal::BluetoothGattInterface::Get()->
+      GetClientHALInterface()->multi_adv_enable(
+          client_id_,
+          params.min_interval,
+          params.max_interval,
+          params.event_type,
+          kAdvertisingChannelAll,
+          params.tx_power_level,
+          params.timeout_s);
+  if (status != BT_STATUS_SUCCESS) {
+    LOG(ERROR) << "Failed to initiate call to enable multi-advertising";
+    return false;
+  }
+
+  // Always update advertising data.
+  adv_data_needs_update_ = true;
+
+  // Update scan response only if it has data, since otherwise we just won't
+  // send ADV_SCAN_IND.
+  if (!scan_response_.data().empty())
+    scan_rsp_needs_update_ = true;
+
+  // OK to set this at the end since we're still holding |adv_fields_lock_|.
+  adv_start_callback_.reset(new StatusCallback(callback));
+
+  return true;
+}
+
+bool LowEnergyClient::StopAdvertising(const StatusCallback& callback) {
+  VLOG(2) << __func__;
+  lock_guard<mutex> lock(adv_fields_lock_);
+
+  if (!IsAdvertisingStarted()) {
+    LOG(ERROR) << "Not advertising";
+    return false;
+  }
+
+  if (IsStoppingAdvertising()) {
+    LOG(ERROR) << "StopAdvertising already pending";
+    return false;
+  }
+
+  CHECK(!adv_start_callback_);
+
+  bt_status_t status = hal::BluetoothGattInterface::Get()->
+      GetClientHALInterface()->multi_adv_disable(client_id_);
+  if (status != BT_STATUS_SUCCESS) {
+    LOG(ERROR) << "Failed to initiate call to disable multi-advertising";
+    return false;
+  }
+
+  // OK to set this at the end since we're still holding |adv_fields_lock_|.
+  adv_stop_callback_.reset(new StatusCallback(callback));
+
+  return true;
+}
+
+bool LowEnergyClient::IsAdvertisingStarted() const {
+  return adv_started_.load();
+}
+
+bool LowEnergyClient::IsStartingAdvertising() const {
+  return !IsAdvertisingStarted() && adv_start_callback_;
+}
+
+bool LowEnergyClient::IsStoppingAdvertising() const {
+  return IsAdvertisingStarted() && adv_stop_callback_;
+}
+
+const UUID& LowEnergyClient::GetAppIdentifier() const {
+  return app_identifier_;
+}
+
+int LowEnergyClient::GetInstanceId() const {
+  return client_id_;
+}
+
+void LowEnergyClient::ScanResultCallback(
+    hal::BluetoothGattInterface* gatt_iface,
+    const bt_bdaddr_t& bda, int rssi, uint8_t* adv_data) {
+  // Ignore scan results if this client didn't start a scan.
+  if (!scan_started_.load())
+    return;
+
+  lock_guard<mutex> lock(delegate_mutex_);
+  if (!delegate_)
+    return;
+
+  // TODO(armansito): Apply software filters here.
+
+  size_t record_len = GetScanRecordLength(adv_data);
+  std::vector<uint8_t> scan_record(adv_data, adv_data + record_len);
+
+  ScanResult result(BtAddrString(&bda), scan_record, rssi);
+
+  delegate_->OnScanResult(this, result);
+}
+
+void LowEnergyClient::ConnectCallback(
+      hal::BluetoothGattInterface* gatt_iface, int conn_id, int status,
+      int client_id, const bt_bdaddr_t& bda) {
+  if (client_id != client_id_)
+    return;
+
+  VLOG(1) << __func__ << "client_id: " << client_id << " status: " << status;
+
+  {
+    lock_guard<mutex> lock(connection_fields_lock_);
+    auto success = connection_ids_.emplace(bda, conn_id);
+    if (!success.second) {
+      LOG(ERROR) << __func__ << " Insertion into connection_ids_ failed!";
+    }
+  }
+
+  if (delegate_)
+    delegate_->OnConnectionState(this, status, BtAddrString(&bda).c_str(),
+                                 true);
+}
+
+void LowEnergyClient::DisconnectCallback(
+      hal::BluetoothGattInterface* gatt_iface, int conn_id, int status,
+      int client_id, const bt_bdaddr_t& bda) {
+  if (client_id != client_id_)
+    return;
+
+  VLOG(1) << __func__ << " client_id: " << client_id << " status: " << status;
+  {
+    lock_guard<mutex> lock(connection_fields_lock_);
+    if (!connection_ids_.erase(bda)) {
+      LOG(ERROR) << __func__ << " Erasing from connection_ids_ failed!";
+    }
+  }
+
+  if (delegate_)
+    delegate_->OnConnectionState(this, status, BtAddrString(&bda).c_str(),
+                                 false);
+}
+
+void LowEnergyClient::MtuChangedCallback(
+      hal::BluetoothGattInterface* gatt_iface, int conn_id, int status,
+      int mtu) {
+  VLOG(1) << __func__ << " conn_id: " << conn_id << " status: " << status
+          << " mtu: " << mtu;
+
+  const bt_bdaddr_t *bda = nullptr;
+  {
+    lock_guard<mutex> lock(connection_fields_lock_);
+    for (auto& connection: connection_ids_) {
+      if (connection.second == conn_id) {
+        bda = &connection.first;
+        break;
+      }
+    }
+  }
+
+  if (!bda)
+    return;
+
+  const char *addr = BtAddrString(bda).c_str();
+  if (delegate_)
+    delegate_->OnMtuChanged(this, status, addr, mtu);
+}
+
+void LowEnergyClient::MultiAdvEnableCallback(
+    hal::BluetoothGattInterface* gatt_iface,
+    int client_id, int status) {
+  if (client_id != client_id_)
+    return;
+
+  lock_guard<mutex> lock(adv_fields_lock_);
+
+  VLOG(1) << __func__ << "client_id: " << client_id << " status: " << status;
+
+  CHECK(adv_start_callback_);
+  CHECK(!adv_stop_callback_);
+
+  // Terminate operation in case of error.
+  if (status != BT_STATUS_SUCCESS) {
+    LOG(ERROR) << "Failed to enable multi-advertising";
+    InvokeAndClearStartCallback(GetBLEStatus(status));
+    return;
+  }
+
+  // Now handle deferred tasks.
+  HandleDeferredAdvertiseData(gatt_iface);
+}
+
+void LowEnergyClient::MultiAdvDataCallback(
+    hal::BluetoothGattInterface* gatt_iface,
+    int client_id, int status) {
+  if (client_id != client_id_)
+    return;
+
+  lock_guard<mutex> lock(adv_fields_lock_);
+
+  VLOG(1) << __func__ << "client_id: " << client_id << " status: " << status;
+
+  is_setting_adv_data_ = false;
+
+  // Terminate operation in case of error.
+  if (status != BT_STATUS_SUCCESS) {
+    LOG(ERROR) << "Failed to set advertising data";
+    InvokeAndClearStartCallback(GetBLEStatus(status));
+    return;
+  }
+
+  // Now handle deferred tasks.
+  HandleDeferredAdvertiseData(gatt_iface);
+}
+
+void LowEnergyClient::MultiAdvDisableCallback(
+    hal::BluetoothGattInterface* /* gatt_iface */,
+    int client_id, int status) {
+  if (client_id != client_id_)
+    return;
+
+  lock_guard<mutex> lock(adv_fields_lock_);
+
+  VLOG(1) << __func__ << "client_id: " << client_id << " status: " << status;
+
+  CHECK(!adv_start_callback_);
+  CHECK(adv_stop_callback_);
+
+  if (status == BT_STATUS_SUCCESS) {
+    VLOG(1) << "Multi-advertising stopped for client_id: " << client_id;
+    adv_started_ = false;
+  } else {
+    LOG(ERROR) << "Failed to stop multi-advertising";
+  }
+
+  InvokeAndClearStopCallback(GetBLEStatus(status));
+}
+
+bt_status_t LowEnergyClient::SetAdvertiseData(
+    hal::BluetoothGattInterface* gatt_iface,
+    const AdvertiseData& data,
+    bool set_scan_rsp) {
+  VLOG(2) << __func__;
+
+  HALAdvertiseData hal_data;
+
+  // TODO(armansito): The stack should check that the length is valid when other
+  // fields inserted by the stack (e.g. flags, device name, tx-power) are taken
+  // into account. At the moment we are skipping this check; this means that if
+  // the given data is too long then the stack will truncate it.
+  if (!ProcessAdvertiseData(data, &hal_data)) {
+    LOG(ERROR) << "Malformed advertise data given";
+    return BT_STATUS_FAIL;
+  }
+
+  if (is_setting_adv_data_.load()) {
+    LOG(ERROR) << "Setting advertising data already in progress.";
+    return BT_STATUS_FAIL;
+  }
+
+  // TODO(armansito): The length fields in the BTIF function below are signed
+  // integers so a call to std::vector::size might get capped. This is very
+  // unlikely anyway but it's safer to stop using signed-integer types for
+  // length in APIs, so we should change that.
+  bt_status_t status = gatt_iface->GetClientHALInterface()->
+      multi_adv_set_inst_data(
+          client_id_,
+          set_scan_rsp,
+          data.include_device_name(),
+          data.include_tx_power_level(),
+          0,  // This is what Bluetooth.apk current hardcodes for "appearance".
+          hal_data.manufacturer_data.size(),
+          reinterpret_cast<char*>(hal_data.manufacturer_data.data()),
+          hal_data.service_data.size(),
+          reinterpret_cast<char*>(hal_data.service_data.data()),
+          hal_data.service_uuid.size(),
+          reinterpret_cast<char*>(hal_data.service_uuid.data()));
+
+  if (status != BT_STATUS_SUCCESS) {
+    LOG(ERROR) << "Failed to set instance advertising data.";
+    return status;
+  }
+
+  if (set_scan_rsp)
+    scan_rsp_needs_update_ = false;
+  else
+    adv_data_needs_update_ = false;
+
+  is_setting_adv_data_ = true;
+
+  return status;
+}
+
+void LowEnergyClient::HandleDeferredAdvertiseData(
+    hal::BluetoothGattInterface* gatt_iface) {
+  VLOG(2) << __func__;
+
+  CHECK(!IsAdvertisingStarted());
+  CHECK(!IsStoppingAdvertising());
+  CHECK(IsStartingAdvertising());
+  CHECK(!is_setting_adv_data_.load());
+
+  if (adv_data_needs_update_.load()) {
+    bt_status_t status = SetAdvertiseData(gatt_iface, adv_data_, false);
+    if (status != BT_STATUS_SUCCESS) {
+      LOG(ERROR) << "Failed setting advertisement data";
+      InvokeAndClearStartCallback(GetBLEStatus(status));
+    }
+    return;
+  }
+
+  if (scan_rsp_needs_update_.load()) {
+    bt_status_t status = SetAdvertiseData(gatt_iface, scan_response_, true);
+    if (status != BT_STATUS_SUCCESS) {
+      LOG(ERROR) << "Failed setting scan response data";
+      InvokeAndClearStartCallback(GetBLEStatus(status));
+    }
+    return;
+  }
+
+  // All pending tasks are complete. Report success.
+  adv_started_ = true;
+  InvokeAndClearStartCallback(BLE_STATUS_SUCCESS);
+}
+
+void LowEnergyClient::InvokeAndClearStartCallback(BLEStatus status) {
+  adv_data_needs_update_ = false;
+  scan_rsp_needs_update_ = false;
+
+  // We allow NULL callbacks.
+  if (*adv_start_callback_)
+    (*adv_start_callback_)(status);
+
+  adv_start_callback_ = nullptr;
+}
+
+void LowEnergyClient::InvokeAndClearStopCallback(BLEStatus status) {
+  // We allow NULL callbacks.
+  if (*adv_stop_callback_)
+    (*adv_stop_callback_)(status);
+
+  adv_stop_callback_ = nullptr;
+}
+
+// LowEnergyClientFactory implementation
+// ========================================================
+
+LowEnergyClientFactory::LowEnergyClientFactory(Adapter& adapter)
+    : adapter_(adapter) {
+  hal::BluetoothGattInterface::Get()->AddClientObserver(this);
+}
+
+LowEnergyClientFactory::~LowEnergyClientFactory() {
+  hal::BluetoothGattInterface::Get()->RemoveClientObserver(this);
+}
+
+bool LowEnergyClientFactory::RegisterInstance(
+    const UUID& uuid,
+    const RegisterCallback& callback) {
+  VLOG(1) << __func__ << " - UUID: " << uuid.ToString();
+  lock_guard<mutex> lock(pending_calls_lock_);
+
+  if (pending_calls_.find(uuid) != pending_calls_.end()) {
+    LOG(ERROR) << "Low-Energy client with given UUID already registered - "
+               << "UUID: " << uuid.ToString();
+    return false;
+  }
+
+  const btgatt_client_interface_t* hal_iface =
+      hal::BluetoothGattInterface::Get()->GetClientHALInterface();
+  bt_uuid_t app_uuid = uuid.GetBlueDroid();
+
+  if (hal_iface->register_client(&app_uuid) != BT_STATUS_SUCCESS)
+    return false;
+
+  pending_calls_[uuid] = callback;
+
+  return true;
+}
+
+void LowEnergyClientFactory::RegisterClientCallback(
+    hal::BluetoothGattInterface* gatt_iface,
+    int status, int client_id,
+    const bt_uuid_t& app_uuid) {
+  UUID uuid(app_uuid);
+
+  VLOG(1) << __func__ << " - UUID: " << uuid.ToString();
+  lock_guard<mutex> lock(pending_calls_lock_);
+
+  auto iter = pending_calls_.find(uuid);
+  if (iter == pending_calls_.end()) {
+    VLOG(1) << "Ignoring callback for unknown app_id: " << uuid.ToString();
+    return;
+  }
+
+  // No need to construct a client if the call wasn't successful.
+  std::unique_ptr<LowEnergyClient> client;
+  BLEStatus result = BLE_STATUS_FAILURE;
+  if (status == BT_STATUS_SUCCESS) {
+    client.reset(new LowEnergyClient(adapter_, uuid, client_id));
+
+    gatt_iface->AddClientObserver(client.get());
+
+    result = BLE_STATUS_SUCCESS;
+  }
+
+  // Notify the result via the result callback.
+  iter->second(result, uuid, std::move(client));
+
+  pending_calls_.erase(iter);
+}
+
+}  // namespace bluetooth
diff --git a/rtkbt/code/bt/service/low_energy_client.h b/rtkbt/code/bt/service/low_energy_client.h
new file mode 100755
index 0000000..45ff662
--- /dev/null
+++ b/rtkbt/code/bt/service/low_energy_client.h
@@ -0,0 +1,276 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#pragma once
+
+#include <atomic>
+#include <functional>
+#include <map>
+#include <mutex>
+
+#include <base/macros.h>
+
+#include "service/bluetooth_instance.h"
+#include "service/common/bluetooth/advertise_data.h"
+#include "service/common/bluetooth/advertise_settings.h"
+#include "service/common/bluetooth/low_energy_constants.h"
+#include "service/common/bluetooth/scan_filter.h"
+#include "service/common/bluetooth/scan_result.h"
+#include "service/common/bluetooth/scan_settings.h"
+#include "service/common/bluetooth/uuid.h"
+#include "service/hal/bluetooth_gatt_interface.h"
+
+namespace bluetooth {
+
+struct ConnComparator {
+    bool operator()(const bt_bdaddr_t& a, const bt_bdaddr_t& b) const {
+        return memcmp(&a, &b, sizeof(bt_bdaddr_t)) < 0;
+    }
+};
+
+class Adapter;
+
+// A LowEnergyClient represents an application's handle to perform various
+// Bluetooth Low Energy GAP operations. Instances cannot be created directly and
+// should be obtained through the factory.
+class LowEnergyClient : private hal::BluetoothGattInterface::ClientObserver,
+                        public BluetoothInstance {
+ public:
+  // The Delegate interface is used to notify asynchronous events related to BLE
+  // GAP operations.
+  class Delegate {
+   public:
+    Delegate() = default;
+    virtual ~Delegate() = default;
+
+    // Called asynchronously to notify the delegate of nearby BLE advertisers
+    // found during a device scan.
+    virtual void OnScanResult(LowEnergyClient* client,
+                              const ScanResult& scan_result) = 0;
+
+    // Called asynchronously to notify the delegate of connection state change
+    virtual void OnConnectionState(LowEnergyClient* client, int status,
+                                   const char* address, bool connected) = 0;
+
+    // Called asynchronously to notify the delegate of mtu change
+    virtual void OnMtuChanged(LowEnergyClient* client, int status, const char* address,
+                              int mtu) = 0;
+
+   private:
+    DISALLOW_COPY_AND_ASSIGN(Delegate);
+  };
+
+  // The destructor automatically unregisters this client instance from the
+  // stack.
+  ~LowEnergyClient() override;
+
+  // Assigns a delegate to this instance. |delegate| must out-live this
+  // LowEnergyClient instance.
+  void SetDelegate(Delegate* delegate);
+
+  // Callback type used to return the result of asynchronous operations below.
+  using StatusCallback = std::function<void(BLEStatus)>;
+
+  // Initiates a BLE connection do device with address |address|. If
+  // |is_direct| is set, use direct connect procedure. Return true on success
+  //, false otherwise.
+  bool Connect(std::string address, bool is_direct);
+
+  // Disconnect from previously connected BLE device with address |address|.
+  // Return true on success, false otherwise.
+  bool Disconnect(std::string address);
+
+  // Sends request to set MTU to |mtu| for device with address |address|.
+  // Return true on success, false otherwise.
+  bool SetMtu(std::string address, int mtu);
+
+  // Initiates a BLE device scan for this client using the given |settings| and
+  // |filters|. See the documentation for ScanSettings and ScanFilter for how
+  // these parameters can be configured. Return true on success, false
+  // otherwise. Please see logs for details in case of error.
+  bool StartScan(const ScanSettings& settings,
+                 const std::vector<ScanFilter>& filters);
+
+  // Stops an ongoing BLE device scan for this client.
+  bool StopScan();
+
+  // Starts advertising based on the given advertising and scan response
+  // data and the provided |settings|. Reports the result of the operation in
+  // |callback|. Return true on success, false otherwise. Please see logs for
+  // details in case of error.
+  bool StartAdvertising(const AdvertiseSettings& settings,
+                        const AdvertiseData& advertise_data,
+                        const AdvertiseData& scan_response,
+                        const StatusCallback& callback);
+
+  // Stops advertising if it was already started. Reports the result of the
+  // operation in |callback|.
+  bool StopAdvertising(const StatusCallback& callback);
+
+  // Returns true if advertising has been started.
+  bool IsAdvertisingStarted() const;
+
+  // Returns the state of pending advertising operations.
+  bool IsStartingAdvertising() const;
+  bool IsStoppingAdvertising() const;
+
+  // Returns the current advertising settings.
+  const AdvertiseSettings& advertise_settings() const {
+    return advertise_settings_;
+  }
+
+  // Returns the current scan settings.
+  const ScanSettings& scan_settings() const { return scan_settings_; }
+
+  // BluetoothClientInstace overrides:
+  const UUID& GetAppIdentifier() const override;
+  int GetInstanceId() const override;
+
+ private:
+  friend class LowEnergyClientFactory;
+
+  // Constructor shouldn't be called directly as instances are meant to be
+  // obtained from the factory.
+  LowEnergyClient(Adapter& adapter, const UUID& uuid, int client_id);
+
+  // BluetoothGattInterface::ClientObserver overrides:
+  void ScanResultCallback(
+      hal::BluetoothGattInterface* gatt_iface,
+      const bt_bdaddr_t& bda, int rssi, uint8_t* adv_data) override;
+
+  void ConnectCallback(
+      hal::BluetoothGattInterface* gatt_iface, int conn_id, int status,
+      int client_id, const bt_bdaddr_t& bda) override;
+  void DisconnectCallback(
+      hal::BluetoothGattInterface* gatt_iface, int conn_id, int status,
+      int client_id, const bt_bdaddr_t& bda) override;
+  void MtuChangedCallback(
+      hal::BluetoothGattInterface* gatt_iface, int conn_id, int status,
+      int mtu) override;
+  void MultiAdvEnableCallback(
+      hal::BluetoothGattInterface* gatt_iface,
+      int client_id, int status) override;
+  void MultiAdvDataCallback(
+      hal::BluetoothGattInterface* gatt_iface,
+      int client_id, int status) override;
+  void MultiAdvDisableCallback(
+      hal::BluetoothGattInterface* gatt_iface,
+      int client_id, int status) override;
+
+  // Helper method called from SetAdvertiseData/SetScanResponse.
+  bt_status_t SetAdvertiseData(
+      hal::BluetoothGattInterface* gatt_iface,
+      const AdvertiseData& data,
+      bool set_scan_rsp);
+
+  // Handles deferred advertise/scan-response data updates. We set the data if
+  // there's data to be set, otherwise we either defer it if advertisements
+  // aren't enabled or do nothing.
+  void HandleDeferredAdvertiseData(hal::BluetoothGattInterface* gatt_iface);
+
+  // Calls and clears the pending callbacks.
+  void InvokeAndClearStartCallback(BLEStatus status);
+  void InvokeAndClearStopCallback(BLEStatus status);
+
+  // Raw pointer to the Bluetooth Adapter.
+  Adapter& adapter_;
+
+  // See getters above for documentation.
+  UUID app_identifier_;
+  int client_id_;
+
+  // Protects advertising-related members below.
+  std::mutex adv_fields_lock_;
+
+  // The advertising and scan response data fields that will be sent to the
+  // controller.
+  AdvertiseData adv_data_;
+  AdvertiseData scan_response_;
+  std::atomic_bool adv_data_needs_update_;
+  std::atomic_bool scan_rsp_needs_update_;
+
+  // Latest advertising settings.
+  AdvertiseSettings advertise_settings_;
+
+  // Whether or not there is a pending call to update advertising or scan
+  // response data.
+  std::atomic_bool is_setting_adv_data_;
+
+  std::atomic_bool adv_started_;
+  std::unique_ptr<StatusCallback> adv_start_callback_;
+  std::unique_ptr<StatusCallback> adv_stop_callback_;
+
+  // Protects device scan related members below.
+  std::mutex scan_fields_lock_;
+
+  // Current scan settings.
+  ScanSettings scan_settings_;
+
+  // If true, then this client have a BLE device scan in progress.
+  std::atomic_bool scan_started_;
+
+  // Raw handle to the Delegate, which must outlive this LowEnergyClient
+  // instance.
+  std::mutex delegate_mutex_;
+  Delegate* delegate_;
+
+  // Protects device connection related members below.
+  std::mutex connection_fields_lock_;
+
+  // Maps bluetooth address to connection id
+  //TODO(jpawlowski): change type to bimap
+  std::map<const bt_bdaddr_t, int, ConnComparator> connection_ids_;
+
+  DISALLOW_COPY_AND_ASSIGN(LowEnergyClient);
+};
+
+// LowEnergyClientFactory is used to register and obtain a per-application
+// LowEnergyClient instance. Users should call RegisterInstance to obtain their
+// own unique LowEnergyClient instance that has been registered with the
+// Bluetooth stack.
+class LowEnergyClientFactory
+    : private hal::BluetoothGattInterface::ClientObserver,
+      public BluetoothInstanceFactory {
+ public:
+  // Don't construct/destruct directly except in tests. Instead, obtain a handle
+  // from an Adapter instance.
+  LowEnergyClientFactory(Adapter& adapter);
+  ~LowEnergyClientFactory() override;
+
+  // BluetoothInstanceFactory override:
+  bool RegisterInstance(const UUID& uuid,
+                        const RegisterCallback& callback) override;
+
+ private:
+  friend class LowEnergyClient;
+
+  // BluetoothGattInterface::ClientObserver overrides:
+  void RegisterClientCallback(
+      hal::BluetoothGattInterface* gatt_iface,
+      int status, int client_id,
+      const bt_uuid_t& app_uuid) override;
+
+  // Map of pending calls to register.
+  std::mutex pending_calls_lock_;
+  std::map<UUID, RegisterCallback> pending_calls_;
+
+  // Raw pointer to the Adapter that owns this factory.
+  Adapter& adapter_;
+
+  DISALLOW_COPY_AND_ASSIGN(LowEnergyClientFactory);
+};
+
+}  // namespace bluetooth
diff --git a/rtkbt/code/bt/service/main.cpp b/rtkbt/code/bt/service/main.cpp
new file mode 100755
index 0000000..3ab81e6
--- /dev/null
+++ b/rtkbt/code/bt/service/main.cpp
@@ -0,0 +1,90 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#ifdef BT_LIBCHROME_NDEBUG
+#define NDEBUG 1
+#endif
+
+#include <base/at_exit.h>
+#include <base/command_line.h>
+#include <base/files/scoped_file.h>
+#include <base/logging.h>
+
+// For system properties
+// TODO(icoolidge): abstraction or non-cutils stub.
+#if !defined(OS_GENERIC)
+#include <cutils/properties.h>
+#endif  // !defined(OS_GENERIC)
+
+#include "service/daemon.h"
+#include "service/switches.h"
+
+namespace {
+
+// TODO(armansito): None of these should be hardcoded here. Instead, pass these
+// via commandline.
+const char kDisableProperty[] = "persist.bluetooth.disable";
+
+}  // namespace
+
+int main(int argc, char *argv[]) {
+  base::AtExitManager exit_manager;
+  base::CommandLine::Init(argc, argv);
+
+  logging::LoggingSettings log_settings;
+  if (!logging::InitLogging(log_settings)) {
+    LOG(ERROR) << "Failed to set up logging";
+    return EXIT_FAILURE;
+  }
+
+  // TODO(armansito): Initialize base/logging. By default it will dump to stdout
+  // but we might want to change that based on a command-line switch. Figure out
+  // how to route the logging to Android's syslog. Once that's done, we won't
+  // need to use osi/include/log.h anymore.
+
+  // TODO(armansito): Register exit-time clean-up handlers for the IPC sockets.
+  // Register signal handlers.
+  auto command_line = base::CommandLine::ForCurrentProcess();
+  if (command_line->HasSwitch(bluetooth::switches::kHelpLong) ||
+      command_line->HasSwitch(bluetooth::switches::kHelpShort)) {
+    LOG(INFO) << bluetooth::switches::kHelpMessage;
+    return EXIT_SUCCESS;
+  }
+
+#if !defined(OS_GENERIC)
+  // TODO(armansito): Remove Chromecast specific property out of here. This
+  // should just be obtained from global config.
+  char disable_value[PROPERTY_VALUE_MAX];
+  int status = property_get(kDisableProperty, disable_value, nullptr);
+  if (status && !strcmp(disable_value, "1")) {
+    LOG(INFO) << "service disabled";
+    return EXIT_SUCCESS;
+  }
+#endif  // !defined(OS_GENERIC)
+
+  if (!bluetooth::Daemon::Initialize()) {
+    LOG(ERROR) << "Failed to initialize Daemon";
+    return EXIT_FAILURE;
+  }
+
+  // Start the main event loop.
+  bluetooth::Daemon::Get()->StartMainLoop();
+
+  // The main message loop has exited; clean up the Daemon.
+  bluetooth::Daemon::Get()->ShutDown();
+
+  return EXIT_SUCCESS;
+}
diff --git a/rtkbt/code/bt/service/settings.cpp b/rtkbt/code/bt/service/settings.cpp
new file mode 100755
index 0000000..dee0e69
--- /dev/null
+++ b/rtkbt/code/bt/service/settings.cpp
@@ -0,0 +1,86 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#include "service/settings.h"
+
+#include <base/base_switches.h>
+#include <base/command_line.h>
+#include <base/logging.h>
+
+#include "service/switches.h"
+
+namespace bluetooth {
+
+Settings::Settings()
+    : initialized_(false) {
+}
+
+Settings::~Settings() {
+}
+
+bool Settings::Init() {
+  CHECK(!initialized_);
+  auto command_line = base::CommandLine::ForCurrentProcess();
+  const auto& switches = command_line->GetSwitches();
+
+  for (const auto& iter : switches) {
+    if (iter.first == switches::kCreateIPCSocketPath) {
+      // kCreateIPCSocketPath: An optional argument that initializes an IPC
+      // socket path for IPC.
+      base::FilePath path(iter.second);
+      if (path.empty() || path.EndsWithSeparator()) {
+        LOG(ERROR) << "Invalid IPC create socket path";
+        return false;
+      }
+
+      create_ipc_socket_path_ = path;
+    } else if (iter.first == switches::kAndroidIPCSocketSuffix) {
+      // kAndroidIPCSocketSuffix: An optional argument used to express
+      // a socket that Android init created for us. We bind to this.
+      const std::string& suffix = iter.second;
+      if (suffix.empty()) {
+        LOG(ERROR) << "Invalid Android socket suffix";
+        return false;
+      }
+
+      android_ipc_socket_suffix_ = suffix;
+    }
+    // Check for libbase logging switches. These get processed by
+    // logging::InitLogging directly.
+    else if (iter.first != ::switches::kV) {
+      LOG(ERROR) << "Unexpected command-line switches found: " << iter.first;
+      return false;
+    }
+  }
+
+  // Two IPC methods/paths were provided.
+  if (!android_ipc_socket_suffix_.empty() &&
+      !create_ipc_socket_path_.empty()) {
+    LOG(ERROR) << "Too many IPC methods provided";
+    return false;
+  }
+
+  // The daemon has no arguments
+  if (command_line->GetArgs().size()) {
+    LOG(ERROR) << "Unexpected command-line arguments found";
+    return false;
+  }
+
+  initialized_ = true;
+  return true;
+}
+
+}  // namespace bluetooth
diff --git a/rtkbt/code/bt/service/settings.h b/rtkbt/code/bt/service/settings.h
new file mode 100755
index 0000000..4c4ea4f
--- /dev/null
+++ b/rtkbt/code/bt/service/settings.h
@@ -0,0 +1,71 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#pragma once
+
+#include <string>
+
+#include <base/files/file_path.h>
+#include <base/macros.h>
+
+namespace bluetooth {
+
+// The Settings class stores global runtime configurations, such as IPC domain
+// namespace, configuration file locations, and other system properties and
+// flags.
+class Settings {
+ public:
+  // Constant for the "--help" command-line switches.
+  static const char kHelp[];
+
+  Settings();
+  ~Settings();
+
+  // TODO(armansito): Write an instance method for storing things into a file.
+
+  // Initializes the Settings object. This reads the command-line options for
+  // the current process (which must have been initialized using
+  // base::CommandLine) and sets up the initial global settings. Returns false
+  // if there is an error, e.g. if the parameters/switches are malformed.
+  bool Init();
+
+  // If Android init created a server socket for the daemon,
+  // we can retrieve it through this suffix.
+  const std::string& android_ipc_socket_suffix() const {
+    return android_ipc_socket_suffix_;
+  }
+
+  // Path to create a Unix domain socket server for Bluetooth IPC.
+  const base::FilePath& create_ipc_socket_path() const {
+    return create_ipc_socket_path_;
+  }
+
+  // Returns true if domain-socket based IPC should be used. If false, then
+  // Binder IPC must be used.
+  inline bool UseSocketIPC() const {
+    return !android_ipc_socket_suffix().empty() ||
+        !create_ipc_socket_path().empty();
+  }
+
+ private:
+  bool initialized_;
+  std::string android_ipc_socket_suffix_;
+  base::FilePath create_ipc_socket_path_;
+
+  DISALLOW_COPY_AND_ASSIGN(Settings);
+};
+
+}  // namespace bluetooth
diff --git a/rtkbt/code/bt/service/switches.h b/rtkbt/code/bt/service/switches.h
new file mode 100755
index 0000000..af23398
--- /dev/null
+++ b/rtkbt/code/bt/service/switches.h
@@ -0,0 +1,42 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#pragma once
+
+#include <string>
+
+namespace bluetooth {
+namespace switches {
+
+// List of command-line switches used by the daemon.
+const char kHelpLong[] = "help";
+const char kHelpShort[] = "h";
+const char kAndroidIPCSocketSuffix[] = "android-ipc-socket-suffix";
+const char kCreateIPCSocketPath[] = "create-ipc-socket";
+
+const char kHelpMessage[] =
+    "\nBluetooth System Service\n"
+    "\n"
+    "Usage:\n"
+    "\t--help,-h\t\t\tShow this help message\n"
+    "\t--android-ipc-socket-suffix\tSuffix of socket created by Android init. "
+    "Mutually exclusive with --create-ipc-socket.\n"
+    "\t--create-ipc-socket\t\tSocket path created for Unix domain socket based "
+    "IPC. Mutually exclusive with --android-ipc-socket-suffix.\n"
+    "\t--v\t\t\t\tLog verbosity level (e.g. -v=1)\n";
+
+}  // namespace switches
+}  // namespace bluetooth
diff --git a/rtkbt/code/bt/service/test/adapter_unittest.cpp b/rtkbt/code/bt/service/test/adapter_unittest.cpp
new file mode 100755
index 0000000..1d094a4
--- /dev/null
+++ b/rtkbt/code/bt/service/test/adapter_unittest.cpp
@@ -0,0 +1,288 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#include <base/macros.h>
+#include <gtest/gtest.h>
+
+#include "service/adapter.h"
+#include "service/common/bluetooth/util/address_helper.h"
+#include "service/hal/fake_bluetooth_gatt_interface.h"
+#include "service/hal/fake_bluetooth_interface.h"
+
+namespace bluetooth {
+namespace {
+
+class AdapterTest : public ::testing::Test {
+ public:
+  AdapterTest() = default;
+  ~AdapterTest() override = default;
+
+  void SetUp() override {
+    fake_hal_manager_ = hal::FakeBluetoothInterface::GetManager();
+    fake_hal_iface_ = new hal::FakeBluetoothInterface();
+    hal::BluetoothInterface::InitializeForTesting(fake_hal_iface_);
+
+    // Initialize GATT interface with default handlers.
+    hal::BluetoothGattInterface::InitializeForTesting(
+        new hal::FakeBluetoothGattInterface(nullptr, nullptr));
+
+    adapter_ = Adapter::Create();
+  }
+
+  void TearDown() override {
+    adapter_.reset();
+    hal::BluetoothGattInterface::CleanUp();
+    hal::BluetoothInterface::CleanUp();
+  }
+
+ protected:
+  hal::FakeBluetoothInterface* fake_hal_iface_;
+  hal::FakeBluetoothInterface::Manager* fake_hal_manager_;
+  std::unique_ptr<Adapter> adapter_;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(AdapterTest);
+};
+
+class TestObserver final : public bluetooth::Adapter::Observer {
+ public:
+  TestObserver(bluetooth::Adapter* adapter)
+      : adapter_(adapter),
+        prev_state_(bluetooth::ADAPTER_STATE_INVALID),
+        cur_state_(bluetooth::ADAPTER_STATE_INVALID),
+        last_device_connected_state_(false) {
+    CHECK(adapter_);
+    adapter_->AddObserver(this);
+  }
+
+  ~TestObserver() override {
+    adapter_->RemoveObserver(this);
+  }
+
+  bluetooth::AdapterState prev_state() const { return prev_state_; }
+  bluetooth::AdapterState cur_state() const { return cur_state_; }
+
+  std::string last_connection_state_address() const {
+    return last_connection_state_address_;
+  }
+
+  bool last_device_connected_state() const {
+    return last_device_connected_state_;
+  }
+
+  // bluetooth::Adapter::Observer override:
+  void OnAdapterStateChanged(bluetooth::Adapter* adapter,
+                             bluetooth::AdapterState prev_state,
+                             bluetooth::AdapterState new_state) override {
+    ASSERT_EQ(adapter_, adapter);
+    prev_state_ = prev_state;
+    cur_state_ = new_state;
+  }
+
+  void OnDeviceConnectionStateChanged(
+      Adapter* adapter,
+      const std::string& device_address,
+      bool connected) override {
+    ASSERT_EQ(adapter_, adapter);
+    last_connection_state_address_ = device_address;
+    last_device_connected_state_ = connected;
+  }
+
+ private:
+  bluetooth::Adapter* adapter_;
+  bluetooth::AdapterState prev_state_, cur_state_;
+  std::string last_connection_state_address_;
+  bool last_device_connected_state_;
+
+  DISALLOW_COPY_AND_ASSIGN(TestObserver);
+};
+
+TEST_F(AdapterTest, IsEnabled) {
+  EXPECT_FALSE(adapter_->IsEnabled());
+
+  fake_hal_iface_->NotifyAdapterStateChanged(BT_STATE_ON);
+  EXPECT_TRUE(adapter_->IsEnabled());
+
+  fake_hal_iface_->NotifyAdapterStateChanged(BT_STATE_OFF);
+  EXPECT_FALSE(adapter_->IsEnabled());
+}
+
+TEST_F(AdapterTest, Enable) {
+  TestObserver observer(adapter_.get());
+
+  EXPECT_FALSE(adapter_->IsEnabled());
+  EXPECT_EQ(bluetooth::ADAPTER_STATE_OFF, adapter_->GetState());
+
+  // Enable fails at HAL level
+  EXPECT_FALSE(adapter_->Enable(false));
+  EXPECT_EQ(bluetooth::ADAPTER_STATE_OFF, adapter_->GetState());
+
+  // Enable success
+  fake_hal_manager_->enable_succeed = true;
+  EXPECT_TRUE(adapter_->Enable(false));
+
+  // Should have received a state update.
+  EXPECT_EQ(bluetooth::ADAPTER_STATE_OFF, observer.prev_state());
+  EXPECT_EQ(bluetooth::ADAPTER_STATE_TURNING_ON, observer.cur_state());
+
+  // Enable fails because not disabled
+  EXPECT_EQ(bluetooth::ADAPTER_STATE_TURNING_ON, adapter_->GetState());
+  EXPECT_FALSE(adapter_->Enable(false));
+
+  // Adapter state updates properly
+  fake_hal_iface_->NotifyAdapterStateChanged(BT_STATE_ON);
+  EXPECT_EQ(bluetooth::ADAPTER_STATE_ON, adapter_->GetState());
+
+  // Should have received a state update.
+  EXPECT_EQ(bluetooth::ADAPTER_STATE_TURNING_ON, observer.prev_state());
+  EXPECT_EQ(bluetooth::ADAPTER_STATE_ON, observer.cur_state());
+
+  // Enable fails because already enabled
+  EXPECT_FALSE(adapter_->Enable(false));
+}
+
+TEST_F(AdapterTest, Disable) {
+  TestObserver observer(adapter_.get());
+
+  fake_hal_manager_->disable_succeed = true;
+  EXPECT_FALSE(adapter_->IsEnabled());
+  EXPECT_EQ(bluetooth::ADAPTER_STATE_OFF, adapter_->GetState());
+
+  // Disable fails because already disabled
+  EXPECT_FALSE(adapter_->Disable());
+  EXPECT_EQ(bluetooth::ADAPTER_STATE_OFF, adapter_->GetState());
+
+  // Disable success
+  fake_hal_iface_->NotifyAdapterStateChanged(BT_STATE_ON);
+
+  // Should have received a state update.
+  EXPECT_EQ(bluetooth::ADAPTER_STATE_OFF, observer.prev_state());
+  EXPECT_EQ(bluetooth::ADAPTER_STATE_ON, observer.cur_state());
+
+  EXPECT_TRUE(adapter_->Disable());
+
+  // Should have received a state update.
+  EXPECT_EQ(bluetooth::ADAPTER_STATE_ON, observer.prev_state());
+  EXPECT_EQ(bluetooth::ADAPTER_STATE_TURNING_OFF, observer.cur_state());
+
+  // Disable fails because not enabled
+  EXPECT_EQ(bluetooth::ADAPTER_STATE_TURNING_OFF, adapter_->GetState());
+  EXPECT_FALSE(adapter_->Disable());
+
+  fake_hal_iface_->NotifyAdapterStateChanged(BT_STATE_ON);
+  EXPECT_EQ(bluetooth::ADAPTER_STATE_ON, adapter_->GetState());
+
+  // Should have received a state update.
+  EXPECT_EQ(bluetooth::ADAPTER_STATE_TURNING_OFF, observer.prev_state());
+  EXPECT_EQ(bluetooth::ADAPTER_STATE_ON, observer.cur_state());
+
+  // Disable fails at HAL level
+  fake_hal_manager_->disable_succeed = false;
+  EXPECT_FALSE(adapter_->Disable());
+
+  // Should have received a state update. In this case we will receive two
+  // updates: one going from OFF to TURNING_OFF, and one going from TURNING_OFF
+  // back to ON since we failed to initiate the disable operation.
+  EXPECT_EQ(bluetooth::ADAPTER_STATE_TURNING_OFF, observer.prev_state());
+  EXPECT_EQ(bluetooth::ADAPTER_STATE_ON, observer.cur_state());
+
+  // Update state to OFF. Should receive a state update.
+  fake_hal_iface_->NotifyAdapterStateChanged(BT_STATE_OFF);
+  EXPECT_EQ(bluetooth::ADAPTER_STATE_ON, observer.prev_state());
+  EXPECT_EQ(bluetooth::ADAPTER_STATE_OFF, observer.cur_state());
+}
+
+TEST_F(AdapterTest, GetName) {
+  EXPECT_EQ(bluetooth::Adapter::kDefaultName, adapter_->GetName());
+
+  const char kTestAdapterName[] = "Test Adapter Name";
+
+  fake_hal_iface_->NotifyAdapterNamePropertyChanged(kTestAdapterName);
+  EXPECT_EQ(kTestAdapterName, adapter_->GetName());
+}
+
+TEST_F(AdapterTest, SetName) {
+  bt_bdname_t hal_name;
+
+  // Name too large.
+  EXPECT_FALSE(adapter_->SetName(std::string(sizeof(hal_name.name), 'a')));
+
+  // Valid length.
+  EXPECT_FALSE(adapter_->SetName("Test Name"));
+  fake_hal_manager_->set_property_succeed = true;
+  EXPECT_TRUE(adapter_->SetName("Test Name"));
+}
+
+TEST_F(AdapterTest, GetAddress) {
+  EXPECT_EQ(bluetooth::Adapter::kDefaultAddress, adapter_->GetAddress());
+
+  const bt_bdaddr_t kTestAdapterInput = {
+    { 0x12, 0x34, 0x56, 0x78, 0x9a, 0xbc }
+  };
+  const char kTestAdapterAddressOutput[] = "12:34:56:78:9A:BC";
+
+  fake_hal_iface_->NotifyAdapterAddressPropertyChanged(&kTestAdapterInput);
+  EXPECT_EQ(kTestAdapterAddressOutput, adapter_->GetAddress());
+}
+
+TEST_F(AdapterTest, IsMultiAdvertisementSupported) {
+  EXPECT_FALSE(adapter_->IsMultiAdvertisementSupported());
+
+  bt_local_le_features_t features;
+  memset(&features, 0, sizeof(features));
+
+  features.max_adv_instance = 10;  // Some high number.
+  fake_hal_iface_->NotifyAdapterLocalLeFeaturesPropertyChanged(&features);
+  EXPECT_TRUE(adapter_->IsMultiAdvertisementSupported());
+
+  features.max_adv_instance = 0;  // Low number.
+  fake_hal_iface_->NotifyAdapterLocalLeFeaturesPropertyChanged(&features);
+  EXPECT_FALSE(adapter_->IsMultiAdvertisementSupported());
+}
+
+TEST_F(AdapterTest, IsDeviceConnected) {
+  const char kDeviceAddr[] = "12:34:56:78:9A:BC";
+  TestObserver observer(adapter_.get());
+
+  EXPECT_FALSE(adapter_->IsDeviceConnected(kDeviceAddr));
+
+  bt_bdaddr_t hal_addr;
+  ASSERT_TRUE(util::BdAddrFromString(kDeviceAddr, &hal_addr));
+
+  // status != BT_STATUS_SUCCESS should be ignored
+  fake_hal_iface_->NotifyAclStateChangedCallback(
+      BT_STATUS_FAIL, hal_addr, BT_ACL_STATE_CONNECTED);
+  EXPECT_FALSE(adapter_->IsDeviceConnected(kDeviceAddr));
+  EXPECT_TRUE(observer.last_connection_state_address().empty());
+  EXPECT_FALSE(observer.last_device_connected_state());
+
+  // Connected
+  fake_hal_iface_->NotifyAclStateChangedCallback(
+      BT_STATUS_SUCCESS, hal_addr, BT_ACL_STATE_CONNECTED);
+  EXPECT_TRUE(adapter_->IsDeviceConnected(kDeviceAddr));
+  EXPECT_EQ(kDeviceAddr, observer.last_connection_state_address());
+  EXPECT_TRUE(observer.last_device_connected_state());
+
+  // Disconnected
+  fake_hal_iface_->NotifyAclStateChangedCallback(
+      BT_STATUS_SUCCESS, hal_addr, BT_ACL_STATE_DISCONNECTED);
+  EXPECT_FALSE(adapter_->IsDeviceConnected(kDeviceAddr));
+  EXPECT_EQ(kDeviceAddr, observer.last_connection_state_address());
+  EXPECT_FALSE(observer.last_device_connected_state());
+}
+
+}  // namespace
+}  // namespace bluetooth
diff --git a/rtkbt/code/bt/service/test/advertise_data_unittest.cpp b/rtkbt/code/bt/service/test/advertise_data_unittest.cpp
new file mode 100755
index 0000000..8c25281
--- /dev/null
+++ b/rtkbt/code/bt/service/test/advertise_data_unittest.cpp
@@ -0,0 +1,153 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#include <gtest/gtest.h>
+
+#include "service/common/bluetooth/advertise_data.h"
+#include "stack/include/bt_types.h"
+#include "stack/include/hcidefs.h"
+
+namespace bluetooth {
+
+TEST(AdvertiseDataTest, EmptyData) {
+  const std::vector<uint8_t> data0;
+  AdvertiseData adv0(data0);
+  EXPECT_TRUE(adv0.IsValid());
+
+  // Single empty field not allowed.
+  const std::vector<uint8_t> data1{ 0x00 };
+  AdvertiseData adv1(data1);
+  EXPECT_FALSE(adv1.IsValid());
+}
+
+TEST(AdvertiseDataTest, BadTLV) {
+  // Single field, field empty.
+  const std::vector<uint8_t> data0{ 0x01 };
+  AdvertiseData adv0(data0);
+  EXPECT_FALSE(adv0.IsValid());
+
+  // Single field, first field length too long.
+  const std::vector<uint8_t> data1{ 0x05, 0x02, 0x00, 0x00, 0x00 };
+  AdvertiseData adv1(data1);
+  EXPECT_FALSE(adv1.IsValid());
+
+  // Two fields, second field length too long.
+  const std::vector<uint8_t> data2{ 0x02, 0x02, 0x00, 0x02, 0x00 };
+  AdvertiseData adv2(data2);
+  EXPECT_FALSE(adv2.IsValid());
+
+  // Two fields, second field empty.
+  const std::vector<uint8_t> data3{ 0x02, 0x02, 0x00, 0x01 };
+  AdvertiseData adv3(data3);
+  EXPECT_FALSE(adv3.IsValid());
+}
+
+TEST(AdvertiseDataTest, GoodTLV) {
+  // Singe field.
+  const std::vector<uint8_t> data0{ 0x03, 0x02, 0x01, 0x02 };
+  AdvertiseData adv0(data0);
+  EXPECT_TRUE(adv0.IsValid());
+
+  // Twi fields.
+  const std::vector<uint8_t> data1{ 0x03, 0x02, 0x01, 0x02, 0x02, 0x03, 0x01 };
+  AdvertiseData adv1(data1);
+  EXPECT_TRUE(adv0.IsValid());
+}
+
+TEST(AdvertiseDataTest, DisallowedFields) {
+  // Singe field.
+  const std::vector<uint8_t> data0{ 0x02, HCI_EIR_FLAGS_TYPE, 0x00 };
+  AdvertiseData adv0(data0);
+  EXPECT_FALSE(adv0.IsValid());
+
+  // Two fields, first invalid.
+  const std::vector<uint8_t> data1{
+      0x02, HCI_EIR_FLAGS_TYPE, 0x00,
+      0x03, 0x02, 0x01, 0x02
+  };
+  AdvertiseData adv1(data1);
+  EXPECT_FALSE(adv1.IsValid());
+
+  // Two fields, second invalid.
+  const std::vector<uint8_t> data2{
+      0x03, 0x02, 0x01, 0x02,
+      0x02, HCI_EIR_FLAGS_TYPE, 0x00
+  };
+  AdvertiseData adv2(data2);
+  EXPECT_FALSE(adv2.IsValid());
+
+  // Check all blacklisted fields
+  uint8_t blacklist[] = {
+      HCI_EIR_FLAGS_TYPE,
+      HCI_EIR_TX_POWER_LEVEL_TYPE,
+      HCI_EIR_SHORTENED_LOCAL_NAME_TYPE,
+      HCI_EIR_COMPLETE_LOCAL_NAME_TYPE,
+      HCI_EIR_OOB_BD_ADDR_TYPE,
+      HCI_EIR_OOB_COD_TYPE,
+      HCI_EIR_OOB_SSP_HASH_C_TYPE,
+      HCI_EIR_OOB_SSP_RAND_R_TYPE
+  };
+  for (size_t i = 0; i < sizeof(blacklist); i++) {
+    const std::vector<uint8_t> data{ 0x02, blacklist[i], 0x00 };
+    AdvertiseData adv(data);
+    EXPECT_FALSE(adv.IsValid());
+  }
+}
+
+TEST(AdvertiseDataTest, EqualsData) {
+  const std::vector<uint8_t> data0{ 0x02, 0x02, 0x00 };
+  const std::vector<uint8_t> data1{ 0x02, 0x03, 0x00 };
+
+  AdvertiseData adv0(data0);
+  AdvertiseData adv1(data1);
+
+  EXPECT_FALSE(adv0 == adv1);
+
+  AdvertiseData adv2(data1);
+  EXPECT_TRUE(adv1 == adv2);
+}
+
+TEST(AdvertiseDataTest, EqualsIncludes) {
+  const std::vector<uint8_t> data;
+
+  AdvertiseData adv0;
+  AdvertiseData adv1;
+  AdvertiseData adv2;
+  AdvertiseData adv3;
+  AdvertiseData adv4;
+
+  adv0.set_include_device_name(true);
+  adv0.set_include_tx_power_level(false);
+
+  adv1.set_include_device_name(false);
+  adv1.set_include_tx_power_level(false);
+
+  adv2.set_include_device_name(false);
+  adv2.set_include_tx_power_level(true);
+
+  adv3.set_include_device_name(true);
+  adv3.set_include_tx_power_level(true);
+
+  adv4.set_include_device_name(true);
+  adv4.set_include_tx_power_level(false);
+
+  EXPECT_FALSE(adv0 == adv1);
+  EXPECT_FALSE(adv0 == adv2);
+  EXPECT_FALSE(adv3 == adv1);
+  EXPECT_TRUE(adv4 == adv0);
+}
+
+}  // namespace bluetooth
diff --git a/rtkbt/code/bt/service/test/fake_hal_util.cpp b/rtkbt/code/bt/service/test/fake_hal_util.cpp
new file mode 100755
index 0000000..d909ad2
--- /dev/null
+++ b/rtkbt/code/bt/service/test/fake_hal_util.cpp
@@ -0,0 +1,29 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+extern "C" {
+
+// TODO(armansito): This provides a fake implementation of the function defined
+// in btcore/include/hal_util.h. We have to provide this to prevent having to
+// pull in libbtcore and transitively libhardware as dependencies for the unit
+// tests. Instead of doing it this way, however, we should instead provide a C++
+// class abstraction for this (and all other btif interfaces) that we can mock
+// for testing.
+int hal_util_load_bt_library(const struct hw_module_t** module) {
+  return -1;
+}
+
+}  // extern "C"
diff --git a/rtkbt/code/bt/service/test/gatt_client_unittest.cpp b/rtkbt/code/bt/service/test/gatt_client_unittest.cpp
new file mode 100755
index 0000000..67b0c1d
--- /dev/null
+++ b/rtkbt/code/bt/service/test/gatt_client_unittest.cpp
@@ -0,0 +1,195 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#include <base/macros.h>
+#include <gmock/gmock.h>
+#include <gtest/gtest.h>
+
+#include "service/gatt_client.h"
+#include "service/hal/fake_bluetooth_gatt_interface.h"
+
+using ::testing::_;
+using ::testing::Return;
+
+namespace bluetooth {
+namespace {
+
+class MockGattHandler
+    : public hal::FakeBluetoothGattInterface::TestClientHandler {
+ public:
+  MockGattHandler() = default;
+  ~MockGattHandler() override = default;
+
+  MOCK_METHOD1(RegisterClient, bt_status_t(bt_uuid_t*));
+  MOCK_METHOD1(UnregisterClient, bt_status_t(int));
+  MOCK_METHOD1(Scan, bt_status_t(bool));
+  MOCK_METHOD4(Connect, bt_status_t(int , const bt_bdaddr_t *, bool, int));
+  MOCK_METHOD3(Disconnect, bt_status_t(int , const bt_bdaddr_t *, int));
+
+  // Stub implementations for uninteresting TestClientHandler methods:
+  bt_status_t MultiAdvEnable(int, int, int, int, int, int, int) override {
+    return BT_STATUS_FAIL;
+  }
+
+  bt_status_t MultiAdvSetInstData(int, bool, bool, bool, int,
+                                  int, char*, int, char*, int, char*) override {
+    return BT_STATUS_FAIL;
+  }
+
+  bt_status_t MultiAdvDisable(int) override {
+    return BT_STATUS_FAIL;
+  }
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(MockGattHandler);
+};
+
+class GattClientTest : public ::testing::Test {
+ public:
+  GattClientTest() = default;
+  ~GattClientTest() override = default;
+
+  void SetUp() override {
+    // Only set |mock_handler_| if a previous test case hasn't set it.
+    if (!mock_handler_)
+      mock_handler_.reset(new MockGattHandler());
+
+    fake_hal_gatt_iface_ = new hal::FakeBluetoothGattInterface(
+        std::static_pointer_cast<
+            hal::FakeBluetoothGattInterface::TestClientHandler>(mock_handler_),
+        nullptr);
+    hal::BluetoothGattInterface::InitializeForTesting(fake_hal_gatt_iface_);
+
+    factory_.reset(new GattClientFactory());
+  }
+
+  void TearDown() override {
+    factory_.reset();
+    hal::BluetoothGattInterface::CleanUp();
+  }
+
+ protected:
+  hal::FakeBluetoothGattInterface* fake_hal_gatt_iface_;
+  std::shared_ptr<MockGattHandler> mock_handler_;
+  std::unique_ptr<GattClientFactory> factory_;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(GattClientTest);
+};
+
+TEST_F(GattClientTest, RegisterInstance) {
+  EXPECT_CALL(*mock_handler_, RegisterClient(_))
+      .Times(2)
+      .WillOnce(Return(BT_STATUS_FAIL))
+      .WillOnce(Return(BT_STATUS_SUCCESS));
+
+  // These will be asynchronously populated with a result when the callback
+  // executes.
+  BLEStatus status = BLE_STATUS_SUCCESS;
+  UUID cb_uuid;
+  std::unique_ptr<GattClient> client;
+  int callback_count = 0;
+
+  auto callback = [&](BLEStatus in_status, const UUID& uuid,
+                      std::unique_ptr<BluetoothInstance> in_client) {
+        status = in_status;
+        cb_uuid = uuid;
+        client = std::unique_ptr<GattClient>(
+            static_cast<GattClient*>(in_client.release()));
+        callback_count++;
+      };
+
+  UUID uuid0 = UUID::GetRandom();
+
+  // HAL returns failure.
+  EXPECT_FALSE(factory_->RegisterInstance(uuid0, callback));
+  EXPECT_EQ(0, callback_count);
+
+  // HAL returns success.
+  EXPECT_TRUE(factory_->RegisterInstance(uuid0, callback));
+  EXPECT_EQ(0, callback_count);
+
+  // Calling twice with the same UUID should fail with no additional call into
+  // the stack.
+  EXPECT_FALSE(factory_->RegisterInstance(uuid0, callback));
+
+  testing::Mock::VerifyAndClearExpectations(mock_handler_.get());
+
+  // Call with a different UUID while one is pending.
+  UUID uuid1 = UUID::GetRandom();
+  EXPECT_CALL(*mock_handler_, RegisterClient(_))
+      .Times(1)
+      .WillOnce(Return(BT_STATUS_SUCCESS));
+  EXPECT_TRUE(factory_->RegisterInstance(uuid1, callback));
+
+  // Trigger callback with an unknown UUID. This should get ignored.
+  UUID uuid2 = UUID::GetRandom();
+  bt_uuid_t hal_uuid = uuid2.GetBlueDroid();
+  fake_hal_gatt_iface_->NotifyRegisterClientCallback(0, 0, hal_uuid);
+  EXPECT_EQ(0, callback_count);
+
+  // |uuid0| succeeds.
+  int client_id0 = 2;  // Pick something that's not 0.
+  hal_uuid = uuid0.GetBlueDroid();
+  fake_hal_gatt_iface_->NotifyRegisterClientCallback(
+      BT_STATUS_SUCCESS, client_id0, hal_uuid);
+
+  EXPECT_EQ(1, callback_count);
+  ASSERT_TRUE(client.get() != nullptr);  // Assert to terminate in case of error
+  EXPECT_EQ(BLE_STATUS_SUCCESS, status);
+  EXPECT_EQ(client_id0, client->GetInstanceId());
+  EXPECT_EQ(uuid0, client->GetAppIdentifier());
+  EXPECT_EQ(uuid0, cb_uuid);
+
+  // The client should unregister itself when deleted.
+  EXPECT_CALL(*mock_handler_, UnregisterClient(client_id0))
+      .Times(1)
+      .WillOnce(Return(BT_STATUS_SUCCESS));
+  client.reset();
+  testing::Mock::VerifyAndClearExpectations(mock_handler_.get());
+
+  // |uuid1| fails.
+  int client_id1 = 3;
+  hal_uuid = uuid1.GetBlueDroid();
+  fake_hal_gatt_iface_->NotifyRegisterClientCallback(
+      BT_STATUS_FAIL, client_id1, hal_uuid);
+
+  EXPECT_EQ(2, callback_count);
+  ASSERT_TRUE(client.get() == nullptr);  // Assert to terminate in case of error
+  EXPECT_EQ(BLE_STATUS_FAILURE, status);
+  EXPECT_EQ(uuid1, cb_uuid);
+}
+
+TEST_F(GattClientTest, StartStopScan) {
+  EXPECT_CALL(*mock_handler_, Scan(true))
+      .Times(1)
+      .WillOnce(Return(BT_STATUS_SUCCESS));
+
+  EXPECT_CALL(*mock_handler_, Scan(false))
+      .Times(1)
+      .WillOnce(Return(BT_STATUS_SUCCESS));
+
+  for (int i = 0; i < 5; i++)
+    hal::BluetoothGattInterface::Get()->StartScan(i);
+
+  for (int i = 0; i < 5; i++)
+    hal::BluetoothGattInterface::Get()->StopScan(i);
+
+  testing::Mock::VerifyAndClearExpectations(mock_handler_.get());
+}
+
+}  // namespace
+}  // namespace bluetooth
diff --git a/rtkbt/code/bt/service/test/gatt_identifier_unittest.cpp b/rtkbt/code/bt/service/test/gatt_identifier_unittest.cpp
new file mode 100755
index 0000000..956edf9
--- /dev/null
+++ b/rtkbt/code/bt/service/test/gatt_identifier_unittest.cpp
@@ -0,0 +1,117 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#include <gtest/gtest.h>
+
+#include "service/common/bluetooth/gatt_identifier.h"
+#include "service/common/bluetooth/uuid.h"
+
+namespace bluetooth {
+namespace {
+
+const std::string kAddr0 = "00:01:02:03:04:05";
+const std::string kAddr1 = "06:07:08:08:0a:0b";
+
+const UUID kUUID0;
+const UUID kUUID1("180d");
+
+const int kId0 = 0;
+const int kId1 = 1;
+
+TEST(GattIdentifierTest, ServiceId) {
+  auto service0 = GattIdentifier::CreateServiceId(kAddr0, kId0, kUUID0, true);
+
+  EXPECT_TRUE(service0->IsService());
+  EXPECT_FALSE(service0->IsCharacteristic());
+  EXPECT_FALSE(service0->IsDescriptor());
+
+  EXPECT_FALSE(service0->GetOwningServiceId());
+  EXPECT_FALSE(service0->GetOwningCharacteristicId());
+
+  // Create different variants, swapping one entry at a time.
+  auto service1 = GattIdentifier::CreateServiceId(kAddr1, kId0, kUUID0, true);
+  auto service2 = GattIdentifier::CreateServiceId(kAddr0, kId1, kUUID0, true);
+  auto service3 = GattIdentifier::CreateServiceId(kAddr0, kId0, kUUID1, true);
+  auto service4 = GattIdentifier::CreateServiceId(kAddr0, kId0, kUUID0, false);
+
+  EXPECT_TRUE(*service1 != *service0);
+  EXPECT_TRUE(*service2 != *service0);
+  EXPECT_TRUE(*service3 != *service0);
+  EXPECT_TRUE(*service4 != *service0);
+
+  GattIdentifier service_copy = *service0;
+  EXPECT_TRUE(service_copy == *service0);
+}
+
+TEST(GattIdentifierTest, CharacteristicId) {
+  auto service0 = GattIdentifier::CreateServiceId(kAddr0, kId0, kUUID0, true);
+  auto char0 = GattIdentifier::CreateCharacteristicId(kId1, kUUID1, *service0);
+
+  EXPECT_FALSE(char0->IsService());
+  EXPECT_TRUE(char0->IsCharacteristic());
+  EXPECT_FALSE(char0->IsDescriptor());
+
+  EXPECT_FALSE(char0->GetOwningCharacteristicId());
+  EXPECT_TRUE(*char0->GetOwningServiceId() == *service0);
+
+  auto service1 = GattIdentifier::CreateServiceId(kAddr1, kId0, kUUID0, true);
+
+  auto char1 = GattIdentifier::CreateCharacteristicId(kId0, kUUID1, *service0);
+  auto char2 = GattIdentifier::CreateCharacteristicId(kId1, kUUID0, *service0);
+  auto char3 = GattIdentifier::CreateCharacteristicId(kId1, kUUID1, *service1);
+
+  EXPECT_TRUE(*char1 != *char0);
+  EXPECT_TRUE(*char2 != *char0);
+  EXPECT_TRUE(*char3 != *char0);
+
+  GattIdentifier char_copy = *char0;
+  EXPECT_TRUE(char_copy == *char0);
+
+  EXPECT_TRUE(*service0 != *char0);
+}
+
+TEST(GattIdentifierTest, DescriptorId) {
+  auto service0 = GattIdentifier::CreateServiceId(kAddr0, kId0, kUUID0, true);
+  auto char0 = GattIdentifier::CreateCharacteristicId(kId1, kUUID1, *service0);
+  auto desc0 = GattIdentifier::CreateDescriptorId(kId0, kUUID0, *char0);
+
+  EXPECT_FALSE(desc0->IsService());
+  EXPECT_FALSE(desc0->IsCharacteristic());
+  EXPECT_TRUE(desc0->IsDescriptor());
+
+  EXPECT_TRUE(*desc0->GetOwningCharacteristicId() == *char0);
+  EXPECT_TRUE(*desc0->GetOwningServiceId() == *service0);
+
+  auto char1 = GattIdentifier::CreateCharacteristicId(kId0, kUUID1, *service0);
+
+  auto desc1 = GattIdentifier::CreateDescriptorId(kId1, kUUID0, *char0);
+  auto desc2 = GattIdentifier::CreateDescriptorId(kId0, kUUID1, *char0);
+  auto desc3 = GattIdentifier::CreateDescriptorId(kId0, kUUID0, *char1);
+
+  EXPECT_TRUE(*desc1 != *desc0);
+  EXPECT_TRUE(*desc2 != *desc0);
+  EXPECT_TRUE(*desc3 != *desc0);
+
+  GattIdentifier desc_copy = *desc0;
+  EXPECT_TRUE(desc_copy == *desc0);
+
+  EXPECT_TRUE(*service0 != *char0);
+  EXPECT_TRUE(*service0 != *desc0);
+  EXPECT_TRUE(*char0 != *desc0);
+}
+
+}  // namespace
+}  // namespace bluetooth
diff --git a/rtkbt/code/bt/service/test/gatt_server_unittest.cpp b/rtkbt/code/bt/service/test/gatt_server_unittest.cpp
new file mode 100755
index 0000000..bacff83
--- /dev/null
+++ b/rtkbt/code/bt/service/test/gatt_server_unittest.cpp
@@ -0,0 +1,1336 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#include <gmock/gmock.h>
+#include <gtest/gtest.h>
+
+#include "service/common/bluetooth/util/address_helper.h"
+#include "service/gatt_server.h"
+#include "service/hal/fake_bluetooth_gatt_interface.h"
+#include "service/hal/gatt_helpers.h"
+
+using ::testing::_;
+using ::testing::Return;
+
+namespace bluetooth {
+namespace {
+
+class MockGattHandler
+    : public hal::FakeBluetoothGattInterface::TestServerHandler {
+ public:
+  MockGattHandler() = default;
+  ~MockGattHandler() override = default;
+
+  MOCK_METHOD1(RegisterServer, bt_status_t(bt_uuid_t*));
+  MOCK_METHOD1(UnregisterServer, bt_status_t(int));
+  MOCK_METHOD3(AddService, bt_status_t(int, btgatt_srvc_id_t*, int));
+  MOCK_METHOD5(AddCharacteristic, bt_status_t(int, int, bt_uuid_t*, int, int));
+  MOCK_METHOD4(AddDescriptor, bt_status_t(int, int, bt_uuid_t*, int));
+  MOCK_METHOD3(StartService, bt_status_t(int, int, int));
+  MOCK_METHOD2(DeleteService, bt_status_t(int, int));
+  MOCK_METHOD6(SendIndication, bt_status_t(int, int, int, int, int, char*));
+  MOCK_METHOD4(SendResponse, bt_status_t(int, int, int, btgatt_response_t*));
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(MockGattHandler);
+};
+
+class TestDelegate : public GattServer::Delegate {
+ public:
+  TestDelegate() = default;
+  ~TestDelegate() override = default;
+
+  struct RequestData {
+    RequestData() : id(-1), offset(-1), is_long(false), is_prep(false),
+                    need_rsp(false), is_exec(false), count(0) {}
+    ~RequestData() = default;
+
+    std::string device_address;
+    int id;
+    int offset;
+    bool is_long;
+    bool is_prep;
+    bool need_rsp;
+    bool is_exec;
+    GattIdentifier gatt_id;
+    int count;
+    std::vector<uint8_t> write_value;
+  };
+
+  void OnCharacteristicReadRequest(
+      GattServer* gatt_server,
+      const std::string& device_address,
+      int request_id, int offset, bool is_long,
+      const bluetooth::GattIdentifier& characteristic_id) override {
+    ASSERT_TRUE(gatt_server);
+    char_read_req_.device_address = device_address;
+    char_read_req_.id = request_id;
+    char_read_req_.offset = offset;
+    char_read_req_.is_long = is_long;
+    char_read_req_.gatt_id = characteristic_id;
+    char_read_req_.count++;
+  }
+
+  void OnDescriptorReadRequest(
+      GattServer* gatt_server,
+      const std::string& device_address,
+      int request_id, int offset, bool is_long,
+      const bluetooth::GattIdentifier& descriptor_id) override {
+    ASSERT_TRUE(gatt_server);
+    desc_read_req_.device_address = device_address;
+    desc_read_req_.id = request_id;
+    desc_read_req_.offset = offset;
+    desc_read_req_.is_long = is_long;
+    desc_read_req_.gatt_id = descriptor_id;
+    desc_read_req_.count++;
+  }
+
+  void OnCharacteristicWriteRequest(
+      GattServer* gatt_server,
+      const std::string& device_address,
+      int request_id, int offset, bool is_prepare_write, bool need_response,
+      const std::vector<uint8_t>& value,
+      const bluetooth::GattIdentifier& characteristic_id) override {
+    ASSERT_TRUE(gatt_server);
+    char_write_req_.device_address = device_address;
+    char_write_req_.id = request_id;
+    char_write_req_.offset = offset;
+    char_write_req_.is_prep = is_prepare_write;
+    char_write_req_.need_rsp = need_response;
+    char_write_req_.gatt_id = characteristic_id;
+    char_write_req_.count++;
+    char_write_req_.write_value = value;
+  }
+
+  void OnDescriptorWriteRequest(
+      GattServer* gatt_server,
+      const std::string& device_address,
+      int request_id, int offset, bool is_prepare_write, bool need_response,
+      const std::vector<uint8_t>& value,
+      const bluetooth::GattIdentifier& descriptor_id) override {
+    ASSERT_TRUE(gatt_server);
+    desc_write_req_.device_address = device_address;
+    desc_write_req_.id = request_id;
+    desc_write_req_.offset = offset;
+    desc_write_req_.is_prep = is_prepare_write;
+    desc_write_req_.need_rsp = need_response;
+    desc_write_req_.gatt_id = descriptor_id;
+    desc_write_req_.count++;
+    desc_write_req_.write_value = value;
+  }
+
+  void OnExecuteWriteRequest(
+      GattServer* gatt_server,
+      const std::string& device_address,
+      int request_id, bool is_execute) override {
+    ASSERT_TRUE(gatt_server);
+    exec_req_.device_address = device_address;
+    exec_req_.id = request_id;
+    exec_req_.is_exec = is_execute;
+    exec_req_.count++;
+  }
+
+  const RequestData& char_read_req() const { return char_read_req_; }
+  const RequestData& desc_read_req() const { return desc_read_req_; }
+  const RequestData& char_write_req() const { return char_write_req_; }
+  const RequestData& desc_write_req() const { return desc_write_req_; }
+
+ private:
+  RequestData char_read_req_;
+  RequestData desc_read_req_;
+  RequestData char_write_req_;
+  RequestData desc_write_req_;
+  RequestData exec_req_;
+};
+
+class GattServerTest : public ::testing::Test {
+ public:
+  GattServerTest() = default;
+  ~GattServerTest() override = default;
+
+  void SetUp() override {
+    mock_handler_.reset(new MockGattHandler());
+    fake_hal_gatt_iface_ = new hal::FakeBluetoothGattInterface(
+        nullptr,
+        std::static_pointer_cast<
+            hal::FakeBluetoothGattInterface::TestServerHandler>(mock_handler_));
+
+    hal::BluetoothGattInterface::InitializeForTesting(fake_hal_gatt_iface_);
+    factory_.reset(new GattServerFactory());
+  }
+
+  void TearDown() override {
+    factory_.reset();
+    hal::BluetoothGattInterface::CleanUp();
+  }
+
+ protected:
+  hal::FakeBluetoothGattInterface* fake_hal_gatt_iface_;
+  std::shared_ptr<MockGattHandler> mock_handler_;
+  std::unique_ptr<GattServerFactory> factory_;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(GattServerTest);
+};
+
+const int kDefaultServerId = 4;
+
+class GattServerPostRegisterTest : public GattServerTest {
+ public:
+  GattServerPostRegisterTest() = default;
+  ~GattServerPostRegisterTest() override = default;
+
+  void SetUp() override {
+    GattServerTest::SetUp();
+    UUID uuid = UUID::GetRandom();
+    auto callback = [&](BLEStatus status, const UUID& in_uuid,
+                        std::unique_ptr<BluetoothInstance> in_client) {
+      CHECK(in_uuid == uuid);
+      CHECK(in_client.get());
+      CHECK(status == BLE_STATUS_SUCCESS);
+
+      gatt_server_ = std::unique_ptr<GattServer>(
+          static_cast<GattServer*>(in_client.release()));
+    };
+
+    EXPECT_CALL(*mock_handler_, RegisterServer(_))
+        .Times(1)
+        .WillOnce(Return(BT_STATUS_SUCCESS));
+
+    factory_->RegisterInstance(uuid, callback);
+
+    bt_uuid_t hal_uuid = uuid.GetBlueDroid();
+    fake_hal_gatt_iface_->NotifyRegisterServerCallback(
+        BT_STATUS_SUCCESS,
+        kDefaultServerId,
+        hal_uuid);
+  }
+
+  void TearDown() override {
+    EXPECT_CALL(*mock_handler_, UnregisterServer(_))
+        .Times(1)
+        .WillOnce(Return(BT_STATUS_SUCCESS));
+    gatt_server_ = nullptr;
+    GattServerTest::TearDown();
+  }
+
+  void SetUpTestService() {
+    EXPECT_CALL(*mock_handler_, AddService(_, _, _))
+        .Times(1)
+        .WillOnce(Return(BT_STATUS_SUCCESS));
+    EXPECT_CALL(*mock_handler_, AddCharacteristic(_, _, _, _, _))
+        .Times(1)
+        .WillOnce(Return(BT_STATUS_SUCCESS));
+    EXPECT_CALL(*mock_handler_, AddDescriptor(_, _, _, _))
+        .Times(1)
+        .WillOnce(Return(BT_STATUS_SUCCESS));
+    EXPECT_CALL(*mock_handler_, StartService(_, _, _))
+        .Times(1)
+        .WillOnce(Return(BT_STATUS_SUCCESS));
+
+    UUID uuid0 = UUID::GetRandom();
+    UUID uuid1 = UUID::GetRandom();
+    UUID uuid2 = UUID::GetRandom();
+
+    bool register_success = false;
+
+    // Doesn't matter what the permissions/properties are since this is all
+    // fake.
+    test_service_id_ = *gatt_server_->BeginServiceDeclaration(uuid0, true);
+    test_char_id_ = *gatt_server_->AddCharacteristic(uuid1, 0, 0);
+    test_desc_id_ = *gatt_server_->AddDescriptor(uuid2, 0);
+    ASSERT_TRUE(gatt_server_->EndServiceDeclaration([&](
+        BLEStatus status, const GattIdentifier& gatt_id) {
+      ASSERT_EQ(BLE_STATUS_SUCCESS, status);
+      ASSERT_TRUE(gatt_id == test_service_id_);
+      register_success = true;
+    }));
+
+    btgatt_srvc_id_t hal_srvc_id;
+    hal::GetHALServiceId(test_service_id_, &hal_srvc_id);
+    bt_uuid_t hal_uuid1 = uuid1.GetBlueDroid();
+    bt_uuid_t hal_uuid2 = uuid2.GetBlueDroid();
+
+    srvc_handle_ = 0x0001;
+    char_handle_ = 0x0003;
+    desc_handle_ = 0x0004;
+
+    fake_hal_gatt_iface_->NotifyServiceAddedCallback(
+        BT_STATUS_SUCCESS, kDefaultServerId, hal_srvc_id, srvc_handle_);
+    fake_hal_gatt_iface_->NotifyCharacteristicAddedCallback(
+        BT_STATUS_SUCCESS, kDefaultServerId, hal_uuid1,
+        srvc_handle_, char_handle_);
+    fake_hal_gatt_iface_->NotifyDescriptorAddedCallback(
+        BT_STATUS_SUCCESS, kDefaultServerId, hal_uuid2,
+        srvc_handle_, desc_handle_);
+    fake_hal_gatt_iface_->NotifyServiceStartedCallback(
+        BT_STATUS_SUCCESS, kDefaultServerId, srvc_handle_);
+
+    testing::Mock::VerifyAndClearExpectations(mock_handler_.get());
+
+    ASSERT_TRUE(register_success);
+  }
+
+ protected:
+  std::unique_ptr<GattServer> gatt_server_;
+
+  GattIdentifier test_service_id_;
+  GattIdentifier test_char_id_;
+  GattIdentifier test_desc_id_;
+  int srvc_handle_;
+  int char_handle_;
+  int desc_handle_;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(GattServerPostRegisterTest);
+};
+
+TEST_F(GattServerTest, RegisterServer) {
+  EXPECT_CALL(*mock_handler_, RegisterServer(_))
+      .Times(2)
+      .WillOnce(Return(BT_STATUS_FAIL))
+      .WillOnce(Return(BT_STATUS_SUCCESS));
+
+  // These will be asynchronously populate with a result when the callback
+  // executes.
+  BLEStatus status = BLE_STATUS_SUCCESS;
+  UUID cb_uuid;
+  std::unique_ptr<GattServer> server;
+  int callback_count = 0;
+
+  auto callback = [&](BLEStatus in_status, const UUID& uuid,
+                      std::unique_ptr<BluetoothInstance> in_server) {
+    status = in_status;
+    cb_uuid = uuid;
+    server = std::unique_ptr<GattServer>(
+        static_cast<GattServer*>(in_server.release()));
+    callback_count++;
+  };
+
+  UUID uuid0 = UUID::GetRandom();
+
+  // HAL returns failure.
+  EXPECT_FALSE(factory_->RegisterInstance(uuid0, callback));
+  EXPECT_EQ(0, callback_count);
+
+  // HAL returns success.
+  EXPECT_TRUE(factory_->RegisterInstance(uuid0, callback));
+  EXPECT_EQ(0, callback_count);
+
+  // Calling twice with the same UUID should fail with no additional calls into
+  // the stack.
+  EXPECT_FALSE(factory_->RegisterInstance(uuid0, callback));
+
+  testing::Mock::VerifyAndClearExpectations(mock_handler_.get());
+
+  // Call with a different UUID while one is pending.
+  UUID uuid1 = UUID::GetRandom();
+  EXPECT_CALL(*mock_handler_, RegisterServer(_))
+      .Times(1)
+      .WillOnce(Return(BT_STATUS_SUCCESS));
+  EXPECT_TRUE(factory_->RegisterInstance(uuid1, callback));
+
+  // Trigger callback with an unknown UUID. This should get ignored.
+  UUID uuid2 = UUID::GetRandom();
+  bt_uuid_t hal_uuid = uuid2.GetBlueDroid();
+  fake_hal_gatt_iface_->NotifyRegisterServerCallback(0, 0, hal_uuid);
+  EXPECT_EQ(0, callback_count);
+
+  // |uuid0| succeeds.
+  int server_if0 = 2;  // Pick something that's not 0.
+  hal_uuid = uuid0.GetBlueDroid();
+  fake_hal_gatt_iface_->NotifyRegisterServerCallback(
+      BT_STATUS_SUCCESS, server_if0, hal_uuid);
+
+  EXPECT_EQ(1, callback_count);
+  ASSERT_TRUE(server.get() != nullptr);  // Assert to terminate in case of error
+  EXPECT_EQ(BLE_STATUS_SUCCESS, status);
+  EXPECT_EQ(server_if0, server->GetInstanceId());
+  EXPECT_EQ(uuid0, server->GetAppIdentifier());
+  EXPECT_EQ(uuid0, cb_uuid);
+
+  // The server should unregister itself when deleted.
+  EXPECT_CALL(*mock_handler_, UnregisterServer(server_if0))
+      .Times(1)
+      .WillOnce(Return(BT_STATUS_SUCCESS));
+  server.reset();
+
+  testing::Mock::VerifyAndClearExpectations(mock_handler_.get());
+
+  // |uuid1| fails.
+  int server_if1 = 3;
+  hal_uuid = uuid1.GetBlueDroid();
+  fake_hal_gatt_iface_->NotifyRegisterServerCallback(
+      BT_STATUS_FAIL, server_if1, hal_uuid);
+
+  EXPECT_EQ(2, callback_count);
+  ASSERT_TRUE(server.get() == nullptr);  // Assert to terminate in case of error
+  EXPECT_EQ(BLE_STATUS_FAILURE, status);
+  EXPECT_EQ(uuid1, cb_uuid);
+}
+
+TEST_F(GattServerPostRegisterTest, SimpleServiceTest) {
+  // Setup a service callback.
+  GattIdentifier cb_id;
+  BLEStatus cb_status = BLE_STATUS_SUCCESS;
+  int cb_count = 0;
+  auto callback = [&](BLEStatus in_status, const GattIdentifier& in_id) {
+    cb_id = in_id;
+    cb_status = in_status;
+    cb_count++;
+  };
+
+  // Service declaration not started.
+  EXPECT_FALSE(gatt_server_->EndServiceDeclaration(callback));
+
+  const UUID uuid = UUID::GetRandom();
+  auto service_id = gatt_server_->BeginServiceDeclaration(uuid, true);
+  EXPECT_TRUE(service_id != nullptr);
+  EXPECT_TRUE(service_id->IsService());
+
+  // Already started.
+  EXPECT_FALSE(gatt_server_->BeginServiceDeclaration(uuid, false));
+
+  // Callback is NULL.
+  EXPECT_FALSE(
+      gatt_server_->EndServiceDeclaration(GattServer::ResultCallback()));
+
+  // We should get a call for a service with one handle.
+  EXPECT_CALL(*mock_handler_, AddService(gatt_server_->GetInstanceId(), _, 1))
+      .Times(2)
+      .WillOnce(Return(BT_STATUS_FAIL))
+      .WillOnce(Return(BT_STATUS_SUCCESS));
+
+  // Stack returns failure. This will cause the entire service declaration to
+  // end and needs to be restarted.
+  EXPECT_FALSE(gatt_server_->EndServiceDeclaration(callback));
+
+  service_id = gatt_server_->BeginServiceDeclaration(uuid, true);
+  EXPECT_TRUE(service_id != nullptr);
+  EXPECT_TRUE(service_id->IsService());
+
+  // Stack returns success.
+  EXPECT_TRUE(gatt_server_->EndServiceDeclaration(callback));
+
+  // EndServiceDeclaration already in progress.
+  EXPECT_FALSE(gatt_server_->EndServiceDeclaration(callback));
+
+  EXPECT_EQ(0, cb_count);
+
+  btgatt_srvc_id_t hal_id;
+  hal::GetHALServiceId(*service_id, &hal_id);
+  int srvc_handle = 0x0001;
+
+  // Report success for AddService but for wrong server. Should be ignored.
+  fake_hal_gatt_iface_->NotifyServiceAddedCallback(
+      BT_STATUS_SUCCESS, kDefaultServerId + 1, hal_id, srvc_handle);
+  EXPECT_EQ(0, cb_count);
+
+  // Report success for AddService.
+  EXPECT_CALL(*mock_handler_, StartService(kDefaultServerId, srvc_handle, _))
+      .Times(1)
+      .WillOnce(Return(BT_STATUS_SUCCESS));
+
+  fake_hal_gatt_iface_->NotifyServiceAddedCallback(
+      BT_STATUS_SUCCESS, kDefaultServerId, hal_id, srvc_handle);
+  EXPECT_EQ(0, cb_count);
+
+  // Report success for StartService but for wrong server. Should be ignored.
+  fake_hal_gatt_iface_->NotifyServiceStartedCallback(
+      BT_STATUS_SUCCESS, kDefaultServerId + 1, srvc_handle);
+  EXPECT_EQ(0, cb_count);
+
+  // Report success for StartService.
+  fake_hal_gatt_iface_->NotifyServiceStartedCallback(
+      BT_STATUS_SUCCESS, kDefaultServerId, srvc_handle);
+  EXPECT_EQ(1, cb_count);
+  EXPECT_EQ(BLE_STATUS_SUCCESS, cb_status);
+  EXPECT_TRUE(cb_id == *service_id);
+
+  // Start new service declaration with same UUID. We should get a different ID.
+  auto service_id1 = gatt_server_->BeginServiceDeclaration(uuid, true);
+  EXPECT_TRUE(service_id1 != nullptr);
+  EXPECT_TRUE(service_id1->IsService());
+  EXPECT_TRUE(*service_id != *service_id1);
+}
+
+TEST_F(GattServerPostRegisterTest, AddServiceFailures) {
+  // Setup a service callback.
+  GattIdentifier cb_id;
+  BLEStatus cb_status = BLE_STATUS_SUCCESS;
+  int cb_count = 0;
+  auto callback = [&](BLEStatus in_status, const GattIdentifier& in_id) {
+    cb_id = in_id;
+    cb_status = in_status;
+    cb_count++;
+  };
+
+  const UUID uuid = UUID::GetRandom();
+  auto service_id = gatt_server_->BeginServiceDeclaration(uuid, true);
+  btgatt_srvc_id_t hal_id;
+  hal::GetHALServiceId(*service_id, &hal_id);
+  int srvc_handle = 0x0001;
+
+  EXPECT_CALL(*mock_handler_, AddService(gatt_server_->GetInstanceId(), _, 1))
+      .Times(3)
+      .WillRepeatedly(Return(BT_STATUS_SUCCESS));
+  EXPECT_TRUE(gatt_server_->EndServiceDeclaration(callback));
+
+  // Report failure for AddService.
+  fake_hal_gatt_iface_->NotifyServiceAddedCallback(
+      BT_STATUS_FAIL, kDefaultServerId, hal_id, srvc_handle);
+  EXPECT_EQ(1, cb_count);
+  EXPECT_NE(BLE_STATUS_SUCCESS, cb_status);
+  EXPECT_TRUE(cb_id == *service_id);
+
+  // Restart. We should get the same ID back.
+  auto service_id1 = gatt_server_->BeginServiceDeclaration(uuid, true);
+  EXPECT_TRUE(*service_id1 == *service_id);
+  EXPECT_TRUE(gatt_server_->EndServiceDeclaration(callback));
+
+  // Report success for AddService but return failure from StartService.
+  EXPECT_CALL(*mock_handler_, StartService(gatt_server_->GetInstanceId(), 1, _))
+      .Times(2)
+      .WillOnce(Return(BT_STATUS_FAIL))
+      .WillOnce(Return(BT_STATUS_SUCCESS));
+
+  fake_hal_gatt_iface_->NotifyServiceAddedCallback(
+      BT_STATUS_SUCCESS, kDefaultServerId, hal_id, srvc_handle);
+  EXPECT_EQ(2, cb_count);
+  EXPECT_NE(BLE_STATUS_SUCCESS, cb_status);
+  EXPECT_TRUE(cb_id == *service_id);
+
+  // Restart.
+  service_id = gatt_server_->BeginServiceDeclaration(uuid, true);
+  EXPECT_TRUE(gatt_server_->EndServiceDeclaration(callback));
+
+  // Report success for AddService, return success from StartService.
+  fake_hal_gatt_iface_->NotifyServiceAddedCallback(
+      BT_STATUS_SUCCESS, kDefaultServerId, hal_id, srvc_handle);
+  EXPECT_EQ(2, cb_count);
+
+  // Report failure for StartService. Added service data should get deleted.
+  EXPECT_CALL(*mock_handler_,
+              DeleteService(gatt_server_->GetInstanceId(), srvc_handle))
+      .Times(1)
+      .WillOnce(Return(BT_STATUS_SUCCESS));
+  fake_hal_gatt_iface_->NotifyServiceStartedCallback(
+      BT_STATUS_FAIL, kDefaultServerId, srvc_handle);
+  EXPECT_EQ(3, cb_count);
+  EXPECT_NE(BLE_STATUS_SUCCESS, cb_status);
+  EXPECT_TRUE(cb_id == *service_id);
+}
+
+TEST_F(GattServerPostRegisterTest, AddCharacteristic) {
+  // Just pick some values.
+  const int props = bluetooth::kCharacteristicPropertyRead |
+      bluetooth::kCharacteristicPropertyNotify;
+  const int perms = kAttributePermissionReadEncrypted;
+  const UUID char_uuid = UUID::GetRandom();
+  bt_uuid_t hal_char_uuid = char_uuid.GetBlueDroid();
+
+  // Declaration not started.
+  EXPECT_EQ(nullptr, gatt_server_->AddCharacteristic(char_uuid, props, perms));
+
+  // Start a service declaration.
+  const UUID service_uuid = UUID::GetRandom();
+  auto service_id = gatt_server_->BeginServiceDeclaration(service_uuid, true);
+  EXPECT_TRUE(service_id != nullptr);
+  btgatt_srvc_id_t hal_id;
+  hal::GetHALServiceId(*service_id, &hal_id);
+
+  // Add two characteristics with the same UUID.
+  auto char_id0 = gatt_server_->AddCharacteristic(char_uuid, props, perms);
+  auto char_id1 = gatt_server_->AddCharacteristic(char_uuid, props, perms);
+
+  EXPECT_TRUE(char_id0 != nullptr);
+  EXPECT_TRUE(char_id1 != nullptr);
+  EXPECT_TRUE(char_id0 != char_id1);
+  EXPECT_TRUE(char_id0->IsCharacteristic());
+  EXPECT_TRUE(char_id1->IsCharacteristic());
+  EXPECT_TRUE(*char_id0->GetOwningServiceId() == *service_id);
+  EXPECT_TRUE(*char_id1->GetOwningServiceId() == *service_id);
+
+  // Expect calls for 5 handles in total as we have 2 characteristics.
+  EXPECT_CALL(*mock_handler_, AddService(kDefaultServerId, _, 5))
+      .WillRepeatedly(Return(BT_STATUS_SUCCESS));
+
+  GattIdentifier cb_id;
+  BLEStatus cb_status;
+  int cb_count = 0;
+  auto callback = [&](BLEStatus in_status, const GattIdentifier& in_id) {
+    cb_id = in_id;
+    cb_status = in_status;
+    cb_count++;
+  };
+
+  int srvc_handle = 0x0001;
+  int char_handle0 = 0x0002;
+  int char_handle1 = 0x0004;
+  EXPECT_TRUE(gatt_server_->EndServiceDeclaration(callback));
+
+  // Cannot add any more characteristics while EndServiceDeclaration is in
+  // progress.
+  EXPECT_EQ(nullptr, gatt_server_->AddCharacteristic(char_uuid, props, perms));
+
+  EXPECT_CALL(*mock_handler_, AddCharacteristic(_, _, _, _, _))
+      .Times(8)
+      .WillOnce(Return(BT_STATUS_FAIL))      // char_id0 - try 1
+      .WillOnce(Return(BT_STATUS_SUCCESS))   // char_id0 - try 2
+      .WillOnce(Return(BT_STATUS_SUCCESS))   // char_id0 - try 3
+      .WillOnce(Return(BT_STATUS_FAIL))      // char_id1 - try 3
+      .WillOnce(Return(BT_STATUS_SUCCESS))   // char_id0 - try 4
+      .WillOnce(Return(BT_STATUS_SUCCESS))   // char_id1 - try 4
+      .WillOnce(Return(BT_STATUS_SUCCESS))   // char_id0 - try 5
+      .WillOnce(Return(BT_STATUS_SUCCESS));  // char_id1 - try 5
+
+  // First AddCharacteristic call will fail.
+  fake_hal_gatt_iface_->NotifyServiceAddedCallback(
+      BT_STATUS_SUCCESS, kDefaultServerId, hal_id, srvc_handle);
+  EXPECT_EQ(1, cb_count);
+  EXPECT_NE(BLE_STATUS_SUCCESS, cb_status);
+  EXPECT_TRUE(cb_id == *service_id);
+
+  // Restart. (try 2)
+  service_id = gatt_server_->BeginServiceDeclaration(service_uuid, true);
+  char_id0 = gatt_server_->AddCharacteristic(char_uuid, props, perms);
+  char_id1 = gatt_server_->AddCharacteristic(char_uuid, props, perms);
+  hal::GetHALServiceId(*service_id, &hal_id);
+  EXPECT_TRUE(gatt_server_->EndServiceDeclaration(callback));
+
+  fake_hal_gatt_iface_->NotifyServiceAddedCallback(
+      BT_STATUS_SUCCESS, kDefaultServerId, hal_id, srvc_handle);
+  EXPECT_EQ(1, cb_count);
+
+  // Report failure for pending AddCharacteristic.
+  fake_hal_gatt_iface_->NotifyCharacteristicAddedCallback(
+      BT_STATUS_FAIL, kDefaultServerId, hal_char_uuid,
+      srvc_handle, char_handle0);
+  EXPECT_EQ(2, cb_count);
+  EXPECT_NE(BLE_STATUS_SUCCESS, cb_status);
+  EXPECT_TRUE(cb_id == *service_id);
+
+  // Restart. (try 3)
+  service_id = gatt_server_->BeginServiceDeclaration(service_uuid, true);
+  char_id0 = gatt_server_->AddCharacteristic(char_uuid, props, perms);
+  char_id1 = gatt_server_->AddCharacteristic(char_uuid, props, perms);
+  hal::GetHALServiceId(*service_id, &hal_id);
+  EXPECT_TRUE(gatt_server_->EndServiceDeclaration(callback));
+
+  fake_hal_gatt_iface_->NotifyServiceAddedCallback(
+      BT_STATUS_SUCCESS, kDefaultServerId, hal_id, srvc_handle);
+  EXPECT_EQ(2, cb_count);
+
+  // Report success for pending AddCharacteristic we should receive a call for
+  // the second characteristic which will fail.
+  fake_hal_gatt_iface_->NotifyCharacteristicAddedCallback(
+      BT_STATUS_SUCCESS, kDefaultServerId, hal_char_uuid,
+      srvc_handle, char_handle0);
+  EXPECT_EQ(3, cb_count);
+  EXPECT_NE(BLE_STATUS_SUCCESS, cb_status);
+  EXPECT_TRUE(cb_id == *service_id);
+
+  // Restart. (try 4)
+  service_id = gatt_server_->BeginServiceDeclaration(service_uuid, true);
+  char_id0 = gatt_server_->AddCharacteristic(char_uuid, props, perms);
+  char_id1 = gatt_server_->AddCharacteristic(char_uuid, props, perms);
+  hal::GetHALServiceId(*service_id, &hal_id);
+  EXPECT_TRUE(gatt_server_->EndServiceDeclaration(callback));
+
+  fake_hal_gatt_iface_->NotifyServiceAddedCallback(
+      BT_STATUS_SUCCESS, kDefaultServerId, hal_id, srvc_handle);
+  EXPECT_EQ(3, cb_count);
+
+  // Report success for pending AddCharacteristic. Second characteristic call
+  // will start normally. We shouldn't receive any new callback.
+  fake_hal_gatt_iface_->NotifyCharacteristicAddedCallback(
+      BT_STATUS_SUCCESS, kDefaultServerId, hal_char_uuid,
+      srvc_handle, char_handle0);
+  EXPECT_EQ(3, cb_count);
+
+  // Report failure for pending AddCharacteristic call for second
+  // characteristic.
+  fake_hal_gatt_iface_->NotifyCharacteristicAddedCallback(
+      BT_STATUS_FAIL, kDefaultServerId, hal_char_uuid,
+      srvc_handle, char_handle1);
+  EXPECT_EQ(4, cb_count);
+  EXPECT_NE(BLE_STATUS_SUCCESS, cb_status);
+  EXPECT_TRUE(cb_id == *service_id);
+
+  // Restart. (try 5)
+  service_id = gatt_server_->BeginServiceDeclaration(service_uuid, true);
+  char_id0 = gatt_server_->AddCharacteristic(char_uuid, props, perms);
+  char_id1 = gatt_server_->AddCharacteristic(char_uuid, props, perms);
+  hal::GetHALServiceId(*service_id, &hal_id);
+  EXPECT_TRUE(gatt_server_->EndServiceDeclaration(callback));
+
+  fake_hal_gatt_iface_->NotifyServiceAddedCallback(
+      BT_STATUS_SUCCESS, kDefaultServerId, hal_id, srvc_handle);
+  EXPECT_EQ(4, cb_count);
+
+  // Report success for pending AddCharacteristic. Second characteristic call
+  // will start normally. We shouldn't receive any new callback.
+  fake_hal_gatt_iface_->NotifyCharacteristicAddedCallback(
+      BT_STATUS_SUCCESS, kDefaultServerId, hal_char_uuid,
+      srvc_handle, char_handle0);
+  EXPECT_EQ(4, cb_count);
+
+  // Report success for pending AddCharacteristic call for second
+  // characteristic. We shouldn't receive any new callback but we'll get a call
+  // to StartService.
+  EXPECT_CALL(*mock_handler_, StartService(kDefaultServerId, srvc_handle, _))
+      .Times(1)
+      .WillOnce(Return(BT_STATUS_SUCCESS));
+  fake_hal_gatt_iface_->NotifyCharacteristicAddedCallback(
+      BT_STATUS_SUCCESS, kDefaultServerId, hal_char_uuid,
+      srvc_handle, char_handle1);
+  EXPECT_EQ(4, cb_count);
+}
+
+TEST_F(GattServerPostRegisterTest, AddDescriptor) {
+  // Set up some values for UUIDs, permissions, and properties.
+  const UUID service_uuid = UUID::GetRandom();
+  const UUID char_uuid0 = UUID::GetRandom();
+  const UUID char_uuid1 = UUID::GetRandom();
+  const UUID desc_uuid = UUID::GetRandom();
+  bt_uuid_t hal_char_uuid0 = char_uuid0.GetBlueDroid();
+  bt_uuid_t hal_char_uuid1 = char_uuid1.GetBlueDroid();
+  bt_uuid_t hal_desc_uuid = desc_uuid.GetBlueDroid();
+  const int props = bluetooth::kCharacteristicPropertyRead |
+      bluetooth::kCharacteristicPropertyNotify;
+  const int perms = kAttributePermissionReadEncrypted;
+
+  // Service declaration not started.
+  EXPECT_EQ(nullptr, gatt_server_->AddDescriptor(desc_uuid, perms));
+
+  // Start a service declaration.
+  auto service_id = gatt_server_->BeginServiceDeclaration(service_uuid, true);
+  btgatt_srvc_id_t hal_id;
+  hal::GetHALServiceId(*service_id, &hal_id);
+
+  // No characteristic was inserted.
+  EXPECT_EQ(nullptr, gatt_server_->AddDescriptor(desc_uuid, perms));
+
+  // Add two characeristics.
+  auto char_id0 = gatt_server_->AddCharacteristic(char_uuid0, props, perms);
+  auto char_id1 = gatt_server_->AddCharacteristic(char_uuid1, props, perms);
+
+  // Add a descriptor.
+  auto desc_id = gatt_server_->AddDescriptor(desc_uuid, perms);
+  EXPECT_NE(nullptr, desc_id);
+  EXPECT_TRUE(desc_id->IsDescriptor());
+  EXPECT_TRUE(*desc_id->GetOwningCharacteristicId() == *char_id1);
+  EXPECT_TRUE(*desc_id->GetOwningServiceId() == *service_id);
+
+  // Add a second descriptor with the same UUID.
+  auto desc_id1 = gatt_server_->AddDescriptor(desc_uuid, perms);
+  EXPECT_NE(nullptr, desc_id1);
+  EXPECT_TRUE(*desc_id1 != *desc_id);
+  EXPECT_TRUE(desc_id1->IsDescriptor());
+  EXPECT_TRUE(*desc_id1->GetOwningCharacteristicId() == *char_id1);
+  EXPECT_TRUE(*desc_id1->GetOwningServiceId() == *service_id);
+
+  // Expect calls for 7 handles.
+  EXPECT_CALL(*mock_handler_, AddService(kDefaultServerId, _, 7))
+      .WillRepeatedly(Return(BT_STATUS_SUCCESS));
+  EXPECT_CALL(*mock_handler_, AddCharacteristic(_, _, _, _, _))
+      .WillRepeatedly(Return(BT_STATUS_SUCCESS));
+
+  GattIdentifier cb_id;
+  BLEStatus cb_status;
+  int cb_count = 0;
+  auto callback = [&](BLEStatus in_status, const GattIdentifier& in_id) {
+    cb_id = in_id;
+    cb_status = in_status;
+    cb_count++;
+  };
+
+  int srvc_handle = 0x0001;
+  int char_handle0 = 0x0002;
+  int char_handle1 = 0x0004;
+  int desc_handle0 = 0x0005;
+  int desc_handle1 = 0x0006;
+
+  EXPECT_TRUE(gatt_server_->EndServiceDeclaration(callback));
+
+  // Cannot add any more descriptors while EndServiceDeclaration is in progress.
+  EXPECT_EQ(nullptr, gatt_server_->AddDescriptor(desc_uuid, perms));
+
+  fake_hal_gatt_iface_->NotifyServiceAddedCallback(
+      BT_STATUS_SUCCESS, kDefaultServerId, hal_id, srvc_handle);
+  EXPECT_EQ(0, cb_count);
+
+  EXPECT_CALL(*mock_handler_, AddDescriptor(_, _, _, _))
+      .Times(8)
+      .WillOnce(Return(BT_STATUS_FAIL))      // desc_id0 - try 1
+      .WillOnce(Return(BT_STATUS_SUCCESS))   // desc_id0 - try 2
+      .WillOnce(Return(BT_STATUS_SUCCESS))   // desc_id0 - try 3
+      .WillOnce(Return(BT_STATUS_FAIL))      // desc_id1 - try 3
+      .WillOnce(Return(BT_STATUS_SUCCESS))   // desc_id0 - try 4
+      .WillOnce(Return(BT_STATUS_SUCCESS))   // desc_id1 - try 4
+      .WillOnce(Return(BT_STATUS_SUCCESS))   // desc_id0 - try 5
+      .WillOnce(Return(BT_STATUS_SUCCESS));  // desc_id1 - try 5
+
+  // Notify success for both characteristics. First descriptor call will fail.
+  fake_hal_gatt_iface_->NotifyCharacteristicAddedCallback(
+      BT_STATUS_SUCCESS, kDefaultServerId, hal_char_uuid0,
+      srvc_handle, char_handle0);
+  EXPECT_EQ(0, cb_count);
+  fake_hal_gatt_iface_->NotifyCharacteristicAddedCallback(
+      BT_STATUS_SUCCESS, kDefaultServerId, hal_char_uuid1,
+      srvc_handle, char_handle1);
+  EXPECT_EQ(1, cb_count);
+  EXPECT_NE(BLE_STATUS_SUCCESS, cb_status);
+  EXPECT_TRUE(cb_id == *service_id);
+
+  // Restart (try 2)
+  cb_count = 0;
+  service_id = gatt_server_->BeginServiceDeclaration(service_uuid, true);
+  hal::GetHALServiceId(*service_id, &hal_id);
+  char_id0 = gatt_server_->AddCharacteristic(char_uuid0, props, perms);
+  char_id1 = gatt_server_->AddCharacteristic(char_uuid1, props, perms);
+  desc_id = gatt_server_->AddDescriptor(desc_uuid, perms);
+  ASSERT_NE(nullptr, desc_id);
+  desc_id1 = gatt_server_->AddDescriptor(desc_uuid, perms);
+  ASSERT_NE(nullptr, desc_id1);
+  EXPECT_TRUE(gatt_server_->EndServiceDeclaration(callback));
+
+  fake_hal_gatt_iface_->NotifyServiceAddedCallback(
+      BT_STATUS_SUCCESS, kDefaultServerId, hal_id, srvc_handle);
+  EXPECT_EQ(0, cb_count);
+  fake_hal_gatt_iface_->NotifyCharacteristicAddedCallback(
+      BT_STATUS_SUCCESS, kDefaultServerId, hal_char_uuid0,
+      srvc_handle, char_handle0);
+  EXPECT_EQ(0, cb_count);
+  fake_hal_gatt_iface_->NotifyCharacteristicAddedCallback(
+      BT_STATUS_SUCCESS, kDefaultServerId, hal_char_uuid1,
+      srvc_handle, char_handle1);
+  EXPECT_EQ(0, cb_count);
+
+  // Notify failure for first descriptor.
+  fake_hal_gatt_iface_->NotifyDescriptorAddedCallback(
+      BT_STATUS_FAIL, kDefaultServerId, hal_desc_uuid,
+      srvc_handle, desc_handle0);
+  EXPECT_EQ(1, cb_count);
+  EXPECT_NE(BLE_STATUS_SUCCESS, cb_status);
+  EXPECT_TRUE(cb_id == *service_id);
+
+  // Restart (try 3)
+  cb_count = 0;
+  service_id = gatt_server_->BeginServiceDeclaration(service_uuid, true);
+  hal::GetHALServiceId(*service_id, &hal_id);
+  char_id0 = gatt_server_->AddCharacteristic(char_uuid0, props, perms);
+  char_id1 = gatt_server_->AddCharacteristic(char_uuid1, props, perms);
+  desc_id = gatt_server_->AddDescriptor(desc_uuid, perms);
+  ASSERT_NE(nullptr, desc_id);
+  desc_id1 = gatt_server_->AddDescriptor(desc_uuid, perms);
+  ASSERT_NE(nullptr, desc_id1);
+  EXPECT_TRUE(gatt_server_->EndServiceDeclaration(callback));
+
+  fake_hal_gatt_iface_->NotifyServiceAddedCallback(
+      BT_STATUS_SUCCESS, kDefaultServerId, hal_id, srvc_handle);
+  EXPECT_EQ(0, cb_count);
+  fake_hal_gatt_iface_->NotifyCharacteristicAddedCallback(
+      BT_STATUS_SUCCESS, kDefaultServerId, hal_char_uuid0,
+      srvc_handle, char_handle0);
+  EXPECT_EQ(0, cb_count);
+  fake_hal_gatt_iface_->NotifyCharacteristicAddedCallback(
+      BT_STATUS_SUCCESS, kDefaultServerId, hal_char_uuid1,
+      srvc_handle, char_handle1);
+  EXPECT_EQ(0, cb_count);
+
+  // Notify success for first descriptor; the second descriptor will fail
+  // immediately.
+  fake_hal_gatt_iface_->NotifyDescriptorAddedCallback(
+      BT_STATUS_SUCCESS, kDefaultServerId, hal_desc_uuid,
+      srvc_handle, desc_handle0);
+  EXPECT_EQ(1, cb_count);
+  EXPECT_NE(BLE_STATUS_SUCCESS, cb_status);
+  EXPECT_TRUE(cb_id == *service_id);
+
+  // Restart (try 4)
+  cb_count = 0;
+  service_id = gatt_server_->BeginServiceDeclaration(service_uuid, true);
+  hal::GetHALServiceId(*service_id, &hal_id);
+  char_id0 = gatt_server_->AddCharacteristic(char_uuid0, props, perms);
+  char_id1 = gatt_server_->AddCharacteristic(char_uuid1, props, perms);
+  desc_id = gatt_server_->AddDescriptor(desc_uuid, perms);
+  ASSERT_NE(nullptr, desc_id);
+  desc_id1 = gatt_server_->AddDescriptor(desc_uuid, perms);
+  ASSERT_NE(nullptr, desc_id1);
+  EXPECT_TRUE(gatt_server_->EndServiceDeclaration(callback));
+
+  fake_hal_gatt_iface_->NotifyServiceAddedCallback(
+      BT_STATUS_SUCCESS, kDefaultServerId, hal_id, srvc_handle);
+  EXPECT_EQ(0, cb_count);
+  fake_hal_gatt_iface_->NotifyCharacteristicAddedCallback(
+      BT_STATUS_SUCCESS, kDefaultServerId, hal_char_uuid0,
+      srvc_handle, char_handle0);
+  EXPECT_EQ(0, cb_count);
+  fake_hal_gatt_iface_->NotifyCharacteristicAddedCallback(
+      BT_STATUS_SUCCESS, kDefaultServerId, hal_char_uuid1,
+      srvc_handle, char_handle1);
+  EXPECT_EQ(0, cb_count);
+
+  // Notify success for first first descriptor and failure for second
+  // descriptor.
+  fake_hal_gatt_iface_->NotifyDescriptorAddedCallback(
+      BT_STATUS_SUCCESS, kDefaultServerId, hal_desc_uuid,
+      srvc_handle, desc_handle0);
+  EXPECT_EQ(0, cb_count);
+
+  fake_hal_gatt_iface_->NotifyDescriptorAddedCallback(
+      BT_STATUS_FAIL, kDefaultServerId, hal_desc_uuid,
+      srvc_handle, desc_handle1);
+  EXPECT_EQ(1, cb_count);
+  EXPECT_NE(BLE_STATUS_SUCCESS, cb_status);
+  EXPECT_TRUE(cb_id == *service_id);
+
+  // Restart (try 5)
+  cb_count = 0;
+  service_id = gatt_server_->BeginServiceDeclaration(service_uuid, true);
+  hal::GetHALServiceId(*service_id, &hal_id);
+  char_id0 = gatt_server_->AddCharacteristic(char_uuid0, props, perms);
+  char_id1 = gatt_server_->AddCharacteristic(char_uuid1, props, perms);
+  desc_id = gatt_server_->AddDescriptor(desc_uuid, perms);
+  ASSERT_NE(nullptr, desc_id);
+  desc_id1 = gatt_server_->AddDescriptor(desc_uuid, perms);
+  ASSERT_NE(nullptr, desc_id1);
+  EXPECT_TRUE(gatt_server_->EndServiceDeclaration(callback));
+
+  fake_hal_gatt_iface_->NotifyServiceAddedCallback(
+      BT_STATUS_SUCCESS, kDefaultServerId, hal_id, srvc_handle);
+  EXPECT_EQ(0, cb_count);
+  fake_hal_gatt_iface_->NotifyCharacteristicAddedCallback(
+      BT_STATUS_SUCCESS, kDefaultServerId, hal_char_uuid0,
+      srvc_handle, char_handle0);
+  EXPECT_EQ(0, cb_count);
+  fake_hal_gatt_iface_->NotifyCharacteristicAddedCallback(
+      BT_STATUS_SUCCESS, kDefaultServerId, hal_char_uuid1,
+      srvc_handle, char_handle1);
+  EXPECT_EQ(0, cb_count);
+
+  // Notify success for both descriptors.
+  fake_hal_gatt_iface_->NotifyDescriptorAddedCallback(
+      BT_STATUS_SUCCESS, kDefaultServerId, hal_desc_uuid,
+      srvc_handle, desc_handle0);
+  EXPECT_EQ(0, cb_count);
+
+  // The second descriptor callback should trigger the end routine.
+  EXPECT_CALL(*mock_handler_, StartService(kDefaultServerId, srvc_handle, _))
+      .Times(1)
+      .WillOnce(Return(BT_STATUS_SUCCESS));
+  fake_hal_gatt_iface_->NotifyDescriptorAddedCallback(
+      BT_STATUS_SUCCESS, kDefaultServerId, hal_desc_uuid,
+      srvc_handle, desc_handle1);
+  EXPECT_EQ(0, cb_count);
+}
+
+TEST_F(GattServerPostRegisterTest, RequestRead) {
+  SetUpTestService();
+
+  TestDelegate test_delegate;
+  gatt_server_->SetDelegate(&test_delegate);
+
+  const std::vector<uint8_t> kTestValue = { 0x01, 0x02, 0x03 };
+  const std::vector<uint8_t> kTestValueTooLarge(BTGATT_MAX_ATTR_LEN + 1, 0);
+  const std::string kTestAddress0 = "01:23:45:67:89:AB";
+  const std::string kTestAddress1 = "CD:EF:01:23:45:67";
+  const int kReqId0 = 0;
+  const int kReqId1 = 1;
+  const int kConnId0 = 1;
+
+  // No pending request.
+  EXPECT_FALSE(gatt_server_->SendResponse(
+      kTestAddress0, kReqId0,
+      GATT_ERROR_NONE, 0, kTestValue));
+
+  bt_bdaddr_t hal_addr0, hal_addr1;
+  ASSERT_TRUE(util::BdAddrFromString(kTestAddress0, &hal_addr0));
+  ASSERT_TRUE(util::BdAddrFromString(kTestAddress1, &hal_addr1));
+
+  // Send a connection callback. The GattServer should store the connection
+  // information and be able to process the incoming read requests for this
+  // connection.
+  fake_hal_gatt_iface_->NotifyServerConnectionCallback(
+      kConnId0, kDefaultServerId, true, hal_addr0);
+
+  // Unknown connection ID shouldn't trigger anything.
+  fake_hal_gatt_iface_->NotifyRequestReadCallback(
+      kConnId0 + 1, kReqId0, hal_addr0, char_handle_, 0, false);
+  EXPECT_EQ(0, test_delegate.char_read_req().count);
+  EXPECT_EQ(0, test_delegate.desc_read_req().count);
+
+  // Unknown device address shouldn't trigger anything.
+  fake_hal_gatt_iface_->NotifyRequestReadCallback(
+      kConnId0, kReqId0, hal_addr1, char_handle_, 0, false);
+  EXPECT_EQ(0, test_delegate.char_read_req().count);
+  EXPECT_EQ(0, test_delegate.desc_read_req().count);
+
+  // Unknown attribute handle shouldn't trigger anything.
+  fake_hal_gatt_iface_->NotifyRequestReadCallback(
+      kConnId0, kReqId0, hal_addr0, char_handle_ + 50, 0, false);
+  EXPECT_EQ(0, test_delegate.char_read_req().count);
+  EXPECT_EQ(0, test_delegate.desc_read_req().count);
+
+  // Characteristic and descriptor handles should trigger correct callbacks.
+  fake_hal_gatt_iface_->NotifyRequestReadCallback(
+      kConnId0, kReqId0, hal_addr0, char_handle_, 0, false);
+  EXPECT_EQ(1, test_delegate.char_read_req().count);
+  EXPECT_EQ(kTestAddress0, test_delegate.char_read_req().device_address);
+  EXPECT_EQ(kReqId0, test_delegate.char_read_req().id);
+  EXPECT_EQ(0, test_delegate.char_read_req().offset);
+  EXPECT_FALSE(test_delegate.char_read_req().is_long);
+  EXPECT_TRUE(test_char_id_ == test_delegate.char_read_req().gatt_id);
+  EXPECT_EQ(0, test_delegate.desc_read_req().count);
+
+  fake_hal_gatt_iface_->NotifyRequestReadCallback(
+      kConnId0, kReqId1, hal_addr0, desc_handle_, 2, true);
+  EXPECT_EQ(1, test_delegate.char_read_req().count);
+  EXPECT_EQ(1, test_delegate.desc_read_req().count);
+  EXPECT_EQ(kTestAddress0, test_delegate.desc_read_req().device_address);
+  EXPECT_EQ(kReqId1, test_delegate.desc_read_req().id);
+  EXPECT_EQ(2, test_delegate.desc_read_req().offset);
+  EXPECT_TRUE(test_delegate.desc_read_req().is_long);
+  EXPECT_TRUE(test_desc_id_ == test_delegate.desc_read_req().gatt_id);
+
+  // Callback with a pending request ID will be ignored.
+  fake_hal_gatt_iface_->NotifyRequestReadCallback(
+      kConnId0, kReqId0, hal_addr0, char_handle_, 0, false);
+  fake_hal_gatt_iface_->NotifyRequestReadCallback(
+      kConnId0, kReqId1, hal_addr0, char_handle_, 0, false);
+  EXPECT_EQ(1, test_delegate.char_read_req().count);
+  EXPECT_EQ(1, test_delegate.desc_read_req().count);
+
+  // Send response for wrong device address.
+  EXPECT_FALSE(gatt_server_->SendResponse(
+      kTestAddress1, kReqId0,
+      GATT_ERROR_NONE, 0, kTestValue));
+
+  // Send response for a value that's too large.
+  EXPECT_FALSE(gatt_server_->SendResponse(
+      kTestAddress0, kReqId0,
+      GATT_ERROR_NONE, 0, kTestValueTooLarge));
+
+  EXPECT_CALL(*mock_handler_, SendResponse(kConnId0, kReqId0,
+                                           BT_STATUS_SUCCESS, _))
+      .Times(2)
+      .WillOnce(Return(BT_STATUS_FAIL))
+      .WillOnce(Return(BT_STATUS_SUCCESS));
+
+  // Stack call fails.
+  EXPECT_FALSE(gatt_server_->SendResponse(
+      kTestAddress0, kReqId0,
+      GATT_ERROR_NONE, 0, kTestValue));
+
+  // Successful send response for characteristic.
+  EXPECT_TRUE(gatt_server_->SendResponse(
+      kTestAddress0, kReqId0,
+      GATT_ERROR_NONE, 0, kTestValue));
+
+  // Characteristic request ID no longer pending.
+  EXPECT_FALSE(gatt_server_->SendResponse(
+      kTestAddress0, kReqId0,
+      GATT_ERROR_NONE, 0, kTestValue));
+
+  EXPECT_CALL(*mock_handler_, SendResponse(kConnId0, kReqId1,
+                                           BT_STATUS_SUCCESS, _))
+      .Times(1)
+      .WillOnce(Return(BT_STATUS_SUCCESS));
+
+  // Successful send response for descriptor.
+  EXPECT_TRUE(gatt_server_->SendResponse(
+      kTestAddress0, kReqId1,
+      GATT_ERROR_NONE, 0, kTestValue));
+
+  // Descriptor request ID no longer pending.
+  EXPECT_FALSE(gatt_server_->SendResponse(
+      kTestAddress0, kReqId1,
+      GATT_ERROR_NONE, 0, kTestValue));
+
+  gatt_server_->SetDelegate(nullptr);
+}
+
+TEST_F(GattServerPostRegisterTest, RequestWrite) {
+  SetUpTestService();
+
+  TestDelegate test_delegate;
+  gatt_server_->SetDelegate(&test_delegate);
+
+  const std::vector<uint8_t> kTestValue = { 0x01, 0x02, 0x03 };
+  const std::string kTestAddress0 = "01:23:45:67:89:AB";
+  const std::string kTestAddress1 = "CD:EF:01:23:45:67";
+  const int kReqId0 = 0;
+  const int kReqId1 = 1;
+  const int kConnId0 = 1;
+
+  // No pending request.
+  EXPECT_FALSE(gatt_server_->SendResponse(
+      kTestAddress0, kReqId0,
+      GATT_ERROR_NONE, 0, kTestValue));
+
+  bt_bdaddr_t hal_addr0, hal_addr1;
+  ASSERT_TRUE(util::BdAddrFromString(kTestAddress0, &hal_addr0));
+  ASSERT_TRUE(util::BdAddrFromString(kTestAddress1, &hal_addr1));
+
+  // Send a connection callback. The GattServer should store the connection
+  // information and be able to process the incoming read requests for this
+  // connection.
+  fake_hal_gatt_iface_->NotifyServerConnectionCallback(
+      kConnId0, kDefaultServerId, true, hal_addr0);
+
+  // Unknown connection ID shouldn't trigger anything.
+  fake_hal_gatt_iface_->NotifyRequestWriteCallback(
+      kConnId0 + 1, kReqId0, hal_addr0, char_handle_, 0,
+      kTestValue.size(), true, false, (uint8_t *)kTestValue.data());
+  EXPECT_EQ(0, test_delegate.char_write_req().count);
+  EXPECT_EQ(0, test_delegate.desc_write_req().count);
+
+  // Unknown device address shouldn't trigger anything.
+  fake_hal_gatt_iface_->NotifyRequestWriteCallback(
+      kConnId0, kReqId0, hal_addr1, char_handle_, 0,
+      kTestValue.size(), true, false, (uint8_t *)kTestValue.data());
+  EXPECT_EQ(0, test_delegate.char_write_req().count);
+  EXPECT_EQ(0, test_delegate.desc_write_req().count);
+
+  // Unknown attribute handle shouldn't trigger anything.
+  fake_hal_gatt_iface_->NotifyRequestWriteCallback(
+      kConnId0, kReqId0, hal_addr0, char_handle_ + 50, 0,
+      kTestValue.size(), true, false, (uint8_t *)kTestValue.data());
+  EXPECT_EQ(0, test_delegate.char_write_req().count);
+  EXPECT_EQ(0, test_delegate.desc_write_req().count);
+
+  // Characteristic and descriptor handles should trigger correct callbacks.
+  fake_hal_gatt_iface_->NotifyRequestWriteCallback(
+      kConnId0, kReqId0, hal_addr0, char_handle_, 0,
+      kTestValue.size(), true, false, (uint8_t *)kTestValue.data());
+  EXPECT_EQ(1, test_delegate.char_write_req().count);
+  EXPECT_EQ(kTestAddress0, test_delegate.char_write_req().device_address);
+  EXPECT_EQ(kReqId0, test_delegate.char_write_req().id);
+  EXPECT_EQ(0, test_delegate.char_write_req().offset);
+  EXPECT_EQ(true, test_delegate.char_write_req().need_rsp);
+  EXPECT_EQ(false, test_delegate.char_write_req().is_exec);
+  EXPECT_EQ(kTestValue, test_delegate.char_write_req().write_value);
+  EXPECT_TRUE(test_char_id_ == test_delegate.char_write_req().gatt_id);
+  EXPECT_EQ(0, test_delegate.desc_write_req().count);
+
+  fake_hal_gatt_iface_->NotifyRequestWriteCallback(
+      kConnId0, kReqId1, hal_addr0, desc_handle_, 2,
+      kTestValue.size(), true, false, (uint8_t *)kTestValue.data());
+  EXPECT_EQ(1, test_delegate.char_write_req().count);
+  EXPECT_EQ(1, test_delegate.desc_write_req().count);
+  EXPECT_EQ(kTestAddress0, test_delegate.desc_write_req().device_address);
+  EXPECT_EQ(kReqId1, test_delegate.desc_write_req().id);
+  EXPECT_EQ(2, test_delegate.desc_write_req().offset);
+  EXPECT_EQ(true, test_delegate.desc_write_req().need_rsp);
+  EXPECT_EQ(false, test_delegate.desc_write_req().is_exec);
+  EXPECT_EQ(kTestValue, test_delegate.desc_write_req().write_value);
+  EXPECT_TRUE(test_desc_id_ == test_delegate.desc_write_req().gatt_id);
+
+  // Callback with a pending request ID will be ignored.
+  fake_hal_gatt_iface_->NotifyRequestWriteCallback(
+      kConnId0, kReqId0, hal_addr0, char_handle_, 0,
+      kTestValue.size(), true, false, (uint8_t *)kTestValue.data());
+  fake_hal_gatt_iface_->NotifyRequestWriteCallback(
+      kConnId0, kReqId1, hal_addr0, char_handle_, 0,
+      kTestValue.size(), true, false, (uint8_t *)kTestValue.data());
+  EXPECT_EQ(1, test_delegate.char_write_req().count);
+  EXPECT_EQ(1, test_delegate.desc_write_req().count);
+
+  // Send response for wrong device address.
+  EXPECT_FALSE(gatt_server_->SendResponse(
+      kTestAddress1, kReqId0,
+      GATT_ERROR_NONE, 0, kTestValue));
+
+  EXPECT_CALL(*mock_handler_, SendResponse(kConnId0, kReqId0,
+                                           BT_STATUS_SUCCESS, _))
+      .Times(2)
+      .WillOnce(Return(BT_STATUS_FAIL))
+      .WillOnce(Return(BT_STATUS_SUCCESS));
+
+  // Stack call fails.
+  EXPECT_FALSE(gatt_server_->SendResponse(
+      kTestAddress0, kReqId0,
+      GATT_ERROR_NONE, 0, kTestValue));
+
+  // Successful send response for characteristic.
+  EXPECT_TRUE(gatt_server_->SendResponse(
+      kTestAddress0, kReqId0,
+      GATT_ERROR_NONE, 0, kTestValue));
+
+  // Characteristic request ID no longer pending.
+  EXPECT_FALSE(gatt_server_->SendResponse(
+      kTestAddress0, kReqId0,
+      GATT_ERROR_NONE, 0, kTestValue));
+
+  EXPECT_CALL(*mock_handler_, SendResponse(kConnId0, kReqId1,
+                                           BT_STATUS_SUCCESS, _))
+      .Times(1)
+      .WillOnce(Return(BT_STATUS_SUCCESS));
+
+  // Successful send response for descriptor.
+  EXPECT_TRUE(gatt_server_->SendResponse(
+      kTestAddress0, kReqId1,
+      GATT_ERROR_NONE, 0, kTestValue));
+
+  // Descriptor request ID no longer pending.
+  EXPECT_FALSE(gatt_server_->SendResponse(
+      kTestAddress0, kReqId1,
+      GATT_ERROR_NONE, 0, kTestValue));
+
+  // SendResponse should fail for a "Write Without Response".
+  fake_hal_gatt_iface_->NotifyRequestWriteCallback(
+      kConnId0, kReqId0, hal_addr0, char_handle_, 0,
+      kTestValue.size(), false, false, (uint8_t *)kTestValue.data());
+  EXPECT_EQ(false, test_delegate.char_write_req().need_rsp);
+  EXPECT_FALSE(gatt_server_->SendResponse(
+      kTestAddress0, kReqId0,
+      GATT_ERROR_NONE, 0, kTestValue));
+
+  gatt_server_->SetDelegate(nullptr);
+}
+
+TEST_F(GattServerPostRegisterTest, SendNotification) {
+  SetUpTestService();
+
+  const std::string kTestAddress0 = "01:23:45:67:89:AB";
+  const std::string kTestAddress1 = "cd:ef:01:23:45:67";
+  const std::string kInvalidAddress = "thingamajig blabbidyboop";
+  const int kConnId0 = 0;
+  const int kConnId1 = 1;
+  std::vector<uint8_t> value;
+  bt_bdaddr_t hal_addr0;
+  ASSERT_TRUE(util::BdAddrFromString(kTestAddress0, &hal_addr0));
+
+  // Set up two connections with the same address.
+  fake_hal_gatt_iface_->NotifyServerConnectionCallback(
+      kConnId0, kDefaultServerId, true, hal_addr0);
+  fake_hal_gatt_iface_->NotifyServerConnectionCallback(
+      kConnId1, kDefaultServerId, true, hal_addr0);
+
+  // Set up a test callback.
+  GATTError gatt_error;
+  int callback_count = 0;
+  auto callback = [&](GATTError in_error) {
+    gatt_error = in_error;
+    callback_count++;
+  };
+
+  // Bad device address.
+  EXPECT_FALSE(gatt_server_->SendNotification(
+      kInvalidAddress,
+      test_char_id_, false, value, callback));
+
+  // Bad connection.
+  EXPECT_FALSE(gatt_server_->SendNotification(
+      kTestAddress1,
+      test_char_id_, false, value, callback));
+
+  // We should get a HAL call for each connection for this address. The calls
+  // fail.
+  EXPECT_CALL(*mock_handler_,
+              SendIndication(kDefaultServerId, char_handle_, kConnId0,
+                             value.size(), 0, nullptr))
+      .Times(1)
+      .WillOnce(Return(BT_STATUS_FAIL));
+  EXPECT_CALL(*mock_handler_,
+              SendIndication(kDefaultServerId, char_handle_, kConnId1,
+                             value.size(), 0, nullptr))
+      .Times(1)
+      .WillOnce(Return(BT_STATUS_FAIL));
+  EXPECT_FALSE(gatt_server_->SendNotification(
+      kTestAddress0,
+      test_char_id_, false, value, callback));
+
+  // One of the calls succeeds.
+  EXPECT_CALL(*mock_handler_,
+              SendIndication(kDefaultServerId, char_handle_, kConnId0,
+                             value.size(), 0, nullptr))
+      .Times(1)
+      .WillOnce(Return(BT_STATUS_SUCCESS));
+  EXPECT_CALL(*mock_handler_,
+              SendIndication(kDefaultServerId, char_handle_, kConnId1,
+                             value.size(), 0, nullptr))
+      .Times(1)
+      .WillOnce(Return(BT_STATUS_FAIL));
+  EXPECT_TRUE(gatt_server_->SendNotification(
+      kTestAddress0,
+      test_char_id_, false, value, callback));
+
+  // One of the connections is already pending so there should be only one call.
+  // This one we send with confirm=true.
+  EXPECT_CALL(*mock_handler_,
+              SendIndication(kDefaultServerId, char_handle_, kConnId1,
+                             value.size(), 1, nullptr))
+      .Times(1)
+      .WillOnce(Return(BT_STATUS_SUCCESS));
+  EXPECT_TRUE(gatt_server_->SendNotification(
+      kTestAddress0,
+      test_char_id_, true, value, callback));
+
+  // Calls are already pending.
+  EXPECT_FALSE(gatt_server_->SendNotification(
+      kTestAddress0, test_char_id_, true, value, callback));
+
+  // Trigger one confirmation callback. We should get calls for two callbacks
+  // since we have two separate calls pending.
+  fake_hal_gatt_iface_->NotifyIndicationSentCallback(
+      kConnId0, BT_STATUS_SUCCESS);
+  fake_hal_gatt_iface_->NotifyIndicationSentCallback(
+      kConnId1, BT_STATUS_SUCCESS);
+  EXPECT_EQ(2, callback_count);
+  EXPECT_EQ(GATT_ERROR_NONE, gatt_error);
+
+  callback_count = 0;
+
+  // Restart. Both calls succeed now.
+  EXPECT_CALL(*mock_handler_,
+              SendIndication(kDefaultServerId, char_handle_, kConnId0,
+                             value.size(), 0, nullptr))
+      .Times(1)
+      .WillOnce(Return(BT_STATUS_SUCCESS));
+  EXPECT_CALL(*mock_handler_,
+              SendIndication(kDefaultServerId, char_handle_, kConnId1,
+                             value.size(), 0, nullptr))
+      .Times(1)
+      .WillOnce(Return(BT_STATUS_SUCCESS));
+  EXPECT_TRUE(gatt_server_->SendNotification(
+      kTestAddress0,
+      test_char_id_, false, value, callback));
+
+  // Trigger one confirmation callback. The callback we passed should still be
+  // pending. The first callback is for the wrong connection ID.
+  fake_hal_gatt_iface_->NotifyIndicationSentCallback(
+      kConnId0 + 50, BT_STATUS_FAIL);
+  fake_hal_gatt_iface_->NotifyIndicationSentCallback(
+      kConnId0, BT_STATUS_SUCCESS);
+  EXPECT_EQ(0, callback_count);
+
+  // This should be ignored since |kConnId0| was already processed.
+  fake_hal_gatt_iface_->NotifyIndicationSentCallback(
+      kConnId0, BT_STATUS_SUCCESS);
+  EXPECT_EQ(0, callback_count);
+
+  // Run the callback with failure. Since the previous callback reported
+  // success, we should report success.
+  fake_hal_gatt_iface_->NotifyIndicationSentCallback(
+      kConnId1, BT_STATUS_SUCCESS);
+  EXPECT_EQ(1, callback_count);
+  EXPECT_EQ(GATT_ERROR_NONE, gatt_error);
+}
+
+}  // namespace
+}  // namespace bluetooth
diff --git a/rtkbt/code/bt/service/test/ipc_linux_unittest.cpp b/rtkbt/code/bt/service/test/ipc_linux_unittest.cpp
new file mode 100755
index 0000000..dfc2693
--- /dev/null
+++ b/rtkbt/code/bt/service/test/ipc_linux_unittest.cpp
@@ -0,0 +1,206 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#include <memory>
+
+#include <sys/socket.h>
+#include <sys/un.h>
+
+#include <base/at_exit.h>
+#include <base/command_line.h>
+#include <base/files/scoped_file.h>
+#include <base/macros.h>
+#include <base/strings/stringprintf.h>
+#include <gtest/gtest.h>
+
+#include "service/adapter.h"
+#include "service/hal/fake_bluetooth_gatt_interface.h"
+#include "service/hal/fake_bluetooth_interface.h"
+#include "service/ipc/ipc_manager.h"
+#include "service/settings.h"
+#include "service/test/mock_daemon.h"
+
+
+namespace {
+
+using testing::Return;
+
+const char kTestSocketPath[] = "test_socket_path";
+
+class IPCLinuxTest : public ::testing::Test {
+ public:
+  IPCLinuxTest() = default;
+  ~IPCLinuxTest() override = default;
+
+  void SetUp() override {
+    SetUpCommandLine();
+    ASSERT_TRUE(settings_.Init());
+
+    auto mock_daemon = new bluetooth::testing::MockDaemon();
+
+    ON_CALL(*mock_daemon, GetSettings()).WillByDefault(Return(&settings_));
+    ON_CALL(*mock_daemon, GetMessageLoop())
+        .WillByDefault(Return(&message_loop_));
+
+    bluetooth::Daemon::InitializeForTesting(mock_daemon);
+    bluetooth::hal::BluetoothInterface::InitializeForTesting(
+        new bluetooth::hal::FakeBluetoothInterface());
+    bluetooth::hal::BluetoothGattInterface::InitializeForTesting(
+        new bluetooth::hal::FakeBluetoothGattInterface(nullptr, nullptr));
+
+    adapter_ = bluetooth::Adapter::Create();
+    ipc_manager_.reset(new ipc::IPCManager(adapter_.get()));
+  }
+
+  void TearDown() override {
+    client_fd_.reset();
+    ipc_manager_.reset();
+    adapter_.reset();
+    bluetooth::hal::BluetoothGattInterface::CleanUp();
+    bluetooth::hal::BluetoothInterface::CleanUp();
+    bluetooth::Daemon::ShutDown();
+    base::CommandLine::Reset();
+  }
+
+  virtual void SetUpCommandLine() {
+    std::string ipc_socket_arg =
+        base::StringPrintf("--create-ipc-socket=%s", kTestSocketPath);
+    const base::CommandLine::CharType* argv[] = {
+      "program", ipc_socket_arg.c_str(),
+    };
+    base::CommandLine::Init(arraysize(argv), argv);
+  }
+
+  void ConnectToTestSocket() {
+    client_fd_.reset(socket(PF_UNIX, SOCK_SEQPACKET, 0));
+    ASSERT_TRUE(client_fd_.is_valid());
+
+    struct sockaddr_un address;
+    memset(&address, 0, sizeof(address));
+    address.sun_family = AF_UNIX;
+    strncpy(address.sun_path, kTestSocketPath, sizeof(address.sun_path) - 1);
+
+    int status = connect(client_fd_.get(), (struct sockaddr *)&address,
+                         sizeof(address));
+    EXPECT_EQ(0, status);
+  }
+
+ protected:
+  base::AtExitManager exit_manager_;
+  base::MessageLoop message_loop_;
+  bluetooth::Settings settings_;
+
+  std::unique_ptr<bluetooth::Adapter> adapter_;
+  std::unique_ptr<ipc::IPCManager> ipc_manager_;
+  base::ScopedFD client_fd_;
+
+  DISALLOW_COPY_AND_ASSIGN(IPCLinuxTest);
+};
+
+class IPCLinuxTestDisabled : public IPCLinuxTest {
+ public:
+  IPCLinuxTestDisabled() = default;
+  ~IPCLinuxTestDisabled() override = default;
+
+  void SetUpCommandLine() override {
+    // Set up with no --ipc-socket-path
+    const base::CommandLine::CharType* argv[] = { "program" };
+    base::CommandLine::Init(arraysize(argv), argv);
+  }
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(IPCLinuxTestDisabled);
+};
+
+class TestDelegate : public ipc::IPCManager::Delegate,
+                     public base::SupportsWeakPtr<TestDelegate> {
+ public:
+  TestDelegate() : started_count_(0), stopped_count_(0) {
+  }
+
+  void OnIPCHandlerStarted(ipc::IPCManager::Type type) override {
+    ASSERT_EQ(ipc::IPCManager::TYPE_LINUX, type);
+    started_count_++;
+    base::MessageLoop::current()->QuitWhenIdle();
+  }
+
+  void OnIPCHandlerStopped(ipc::IPCManager::Type type) override {
+    ASSERT_EQ(ipc::IPCManager::TYPE_LINUX, type);
+    stopped_count_++;
+    base::MessageLoop::current()->QuitWhenIdle();
+  }
+
+  int started_count() const { return started_count_; }
+  int stopped_count() const { return stopped_count_; }
+
+ private:
+  int started_count_;
+  int stopped_count_;
+
+  DISALLOW_COPY_AND_ASSIGN(TestDelegate);
+};
+
+TEST_F(IPCLinuxTestDisabled, StartWithNoSocketPath) {
+  TestDelegate delegate;
+  EXPECT_FALSE(ipc_manager_->Start(ipc::IPCManager::TYPE_LINUX, &delegate));
+  EXPECT_FALSE(ipc_manager_->LinuxStarted());
+  EXPECT_EQ(0, delegate.started_count());
+  EXPECT_EQ(0, delegate.stopped_count());
+}
+
+TEST_F(IPCLinuxTest, BasicStartAndExit) {
+  TestDelegate delegate;
+  EXPECT_TRUE(ipc_manager_->Start(ipc::IPCManager::TYPE_LINUX, &delegate));
+  EXPECT_TRUE(ipc_manager_->LinuxStarted());
+
+  // Run the message loop. We will stop the loop when we receive a delegate
+  // event.
+  message_loop_.Run();
+
+  // We should have received the started event.
+  EXPECT_EQ(1, delegate.started_count());
+  EXPECT_EQ(0, delegate.stopped_count());
+
+  // At this point the thread is blocking on accept and listening for incoming
+  // connections. TearDown should gracefully clean up the thread and the test
+  // should succeed without hanging.
+  ipc_manager_.reset();
+  message_loop_.Run();
+  EXPECT_EQ(1, delegate.stopped_count());
+}
+
+TEST_F(IPCLinuxTest, BasicStartAndConnect) {
+  TestDelegate delegate;
+  EXPECT_TRUE(ipc_manager_->Start(ipc::IPCManager::TYPE_LINUX, &delegate));
+  EXPECT_TRUE(ipc_manager_->LinuxStarted());
+
+  // Run the message loop. We will stop the loop when we receive a delegate
+  // event.
+  message_loop_.Run();
+
+  // We should have received the started event.
+  EXPECT_EQ(1, delegate.started_count());
+  EXPECT_EQ(0, delegate.stopped_count());
+
+  // IPC successfully started. Now attempt to connect to the socket.
+  ConnectToTestSocket();
+
+  // TODO(armansito): Test that the IPC event loop shuts down cleanly while a
+  // client is connected. Currently this will fail and the fix is to use
+  // MessageLoopForIO rather than a custom event loop.
+}
+
+}  // namespace
diff --git a/rtkbt/code/bt/service/test/low_energy_client_unittest.cpp b/rtkbt/code/bt/service/test/low_energy_client_unittest.cpp
new file mode 100755
index 0000000..cecdc8e
--- /dev/null
+++ b/rtkbt/code/bt/service/test/low_energy_client_unittest.cpp
@@ -0,0 +1,1018 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#include <base/macros.h>
+#include <gmock/gmock.h>
+#include <gtest/gtest.h>
+
+#include "service/adapter.h"
+#include "service/hal/fake_bluetooth_gatt_interface.h"
+#include "service/low_energy_client.h"
+#include "stack/include/bt_types.h"
+#include "stack/include/hcidefs.h"
+#include "test/mock_adapter.h"
+
+using ::testing::_;
+using ::testing::Return;
+using ::testing::Pointee;
+using ::testing::DoAll;
+using ::testing::Invoke;
+
+namespace bluetooth {
+namespace {
+
+class MockGattHandler
+    : public hal::FakeBluetoothGattInterface::TestClientHandler {
+ public:
+  MockGattHandler() {
+    ON_CALL(*this, Scan(false))
+        .WillByDefault(Return(BT_STATUS_SUCCESS));
+  }
+  ~MockGattHandler() override = default;
+
+  MOCK_METHOD1(RegisterClient, bt_status_t(bt_uuid_t*));
+  MOCK_METHOD1(UnregisterClient, bt_status_t(int));
+  MOCK_METHOD1(Scan, bt_status_t(bool));
+  MOCK_METHOD4(Connect, bt_status_t(int , const bt_bdaddr_t *, bool, int));
+  MOCK_METHOD3(Disconnect, bt_status_t(int , const bt_bdaddr_t *, int));
+  MOCK_METHOD7(MultiAdvEnable, bt_status_t(int, int, int, int, int, int, int));
+  MOCK_METHOD10(
+      MultiAdvSetInstDataMock,
+      bt_status_t(bool, bool, bool, int, int, char*, int, char*, int, char*));
+  MOCK_METHOD1(MultiAdvDisable, bt_status_t(int));
+
+  // GMock has macros for up to 10 arguments (11 is really just too many...).
+  // For now we forward this call to a 10 argument mock, omitting the
+  // |client_if| argument.
+  bt_status_t MultiAdvSetInstData(
+      int /* client_if */,
+      bool set_scan_rsp, bool include_name,
+      bool incl_txpower, int appearance,
+      int manufacturer_len, char* manufacturer_data,
+      int service_data_len, char* service_data,
+      int service_uuid_len, char* service_uuid) override {
+    return MultiAdvSetInstDataMock(
+        set_scan_rsp, include_name, incl_txpower, appearance,
+        manufacturer_len, manufacturer_data,
+        service_data_len, service_data,
+        service_uuid_len, service_uuid);
+  }
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(MockGattHandler);
+};
+
+class TestDelegate : public LowEnergyClient::Delegate {
+ public:
+  TestDelegate() : scan_result_count_(0), connection_state_count_(0),
+                   last_mtu_(0) {
+  }
+
+  ~TestDelegate() override = default;
+
+  int scan_result_count() const { return scan_result_count_; }
+  const ScanResult& last_scan_result() const { return last_scan_result_; }
+
+  int connection_state_count() const { return connection_state_count_; }
+
+  void OnConnectionState(LowEnergyClient* client, int status,
+                         const char* address, bool connected)  {
+    ASSERT_TRUE(client);
+    connection_state_count_++;
+  }
+
+  void OnMtuChanged(LowEnergyClient* client, int status, const char* address,
+                    int mtu) {
+    ASSERT_TRUE(client);
+    last_mtu_ = mtu;
+  }
+
+  void OnScanResult(LowEnergyClient* client, const ScanResult& scan_result) {
+    ASSERT_TRUE(client);
+    scan_result_count_++;
+    last_scan_result_ = scan_result;
+  }
+
+ private:
+  int scan_result_count_;
+  ScanResult last_scan_result_;
+
+  int connection_state_count_;
+
+  int last_mtu_;
+
+  DISALLOW_COPY_AND_ASSIGN(TestDelegate);
+};
+
+// Created this class for testing Advertising Data Setting
+// It provides a work around in order to verify the arguments
+// in the arrays passed to MultiAdvSetInstData due to mocks
+// not having an easy way to verify entire arrays
+class AdvertiseDataHandler : public MockGattHandler {
+ public:
+  AdvertiseDataHandler() : call_count_(0) {}
+  ~AdvertiseDataHandler() override = default;
+
+  bt_status_t MultiAdvSetInstData(
+      int /* client_if */,
+      bool set_scan_rsp, bool include_name,
+      bool incl_txpower, int appearance,
+      int manufacturer_len, char* manufacturer_data,
+      int service_data_len, char* service_data,
+      int service_uuid_len, char* service_uuid) override {
+    call_count_++;
+    service_data_.assign(
+        service_data, service_data+service_data_len);
+    manufacturer_data_.assign(
+        manufacturer_data, manufacturer_data+manufacturer_len);
+    uuid_data_.assign(
+        service_uuid, service_uuid+service_uuid_len);
+    return BT_STATUS_SUCCESS;
+  }
+
+  const std::vector<uint8_t>& manufacturer_data() const {
+    return manufacturer_data_;
+  }
+  const std::vector<uint8_t>& service_data() const { return service_data_; }
+  const std::vector<uint8_t>& uuid_data() const { return uuid_data_; }
+  int call_count() const { return call_count_; }
+
+ private:
+  int call_count_;
+  std::vector<uint8_t> manufacturer_data_;
+  std::vector<uint8_t> service_data_;
+  std::vector<uint8_t> uuid_data_;
+};
+
+class LowEnergyClientTest : public ::testing::Test {
+ public:
+  LowEnergyClientTest() = default;
+  ~LowEnergyClientTest() override = default;
+
+  void SetUp() override {
+    // Only set |mock_handler_| if a test hasn't set it.
+    if (!mock_handler_)
+        mock_handler_.reset(new MockGattHandler());
+    fake_hal_gatt_iface_ = new hal::FakeBluetoothGattInterface(
+        std::static_pointer_cast<
+            hal::FakeBluetoothGattInterface::TestClientHandler>(mock_handler_),
+        nullptr);
+    hal::BluetoothGattInterface::InitializeForTesting(fake_hal_gatt_iface_);
+    ble_factory_.reset(new LowEnergyClientFactory(mock_adapter_));
+  }
+
+  void TearDown() override {
+    ble_factory_.reset();
+    hal::BluetoothGattInterface::CleanUp();
+  }
+
+ protected:
+  hal::FakeBluetoothGattInterface* fake_hal_gatt_iface_;
+  testing::MockAdapter mock_adapter_;
+  std::shared_ptr<MockGattHandler> mock_handler_;
+  std::unique_ptr<LowEnergyClientFactory> ble_factory_;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(LowEnergyClientTest);
+};
+
+// Used for tests that operate on a pre-registered client.
+class LowEnergyClientPostRegisterTest : public LowEnergyClientTest {
+ public:
+  LowEnergyClientPostRegisterTest() : next_client_id_(0) {
+  }
+  ~LowEnergyClientPostRegisterTest() override = default;
+
+  void SetUp() override {
+    LowEnergyClientTest::SetUp();
+    auto callback = [&](std::unique_ptr<LowEnergyClient> client) {
+      le_client_ = std::move(client);
+    };
+    RegisterTestClient(callback);
+  }
+
+  void TearDown() override {
+    EXPECT_CALL(*mock_handler_, MultiAdvDisable(_))
+        .Times(1)
+        .WillOnce(Return(BT_STATUS_SUCCESS));
+    EXPECT_CALL(*mock_handler_, UnregisterClient(_))
+        .Times(1)
+        .WillOnce(Return(BT_STATUS_SUCCESS));
+    le_client_.reset();
+    LowEnergyClientTest::TearDown();
+  }
+
+  void RegisterTestClient(
+      const std::function<void(std::unique_ptr<LowEnergyClient> client)>
+          callback) {
+    UUID uuid = UUID::GetRandom();
+    auto api_callback = [&](BLEStatus status, const UUID& in_uuid,
+                        std::unique_ptr<BluetoothInstance> in_client) {
+      CHECK(in_uuid == uuid);
+      CHECK(in_client.get());
+      CHECK(status == BLE_STATUS_SUCCESS);
+
+      callback(std::unique_ptr<LowEnergyClient>(
+          static_cast<LowEnergyClient*>(in_client.release())));
+    };
+
+    EXPECT_CALL(*mock_handler_, RegisterClient(_))
+        .Times(1)
+        .WillOnce(Return(BT_STATUS_SUCCESS));
+
+    ble_factory_->RegisterInstance(uuid, api_callback);
+
+    bt_uuid_t hal_uuid = uuid.GetBlueDroid();
+    fake_hal_gatt_iface_->NotifyRegisterClientCallback(
+        0, next_client_id_++, hal_uuid);
+    ::testing::Mock::VerifyAndClearExpectations(mock_handler_.get());
+  }
+
+  void StartAdvertising() {
+    ASSERT_FALSE(le_client_->IsAdvertisingStarted());
+    ASSERT_FALSE(le_client_->IsStartingAdvertising());
+    ASSERT_FALSE(le_client_->IsStoppingAdvertising());
+
+    EXPECT_CALL(*mock_handler_, MultiAdvEnable(_, _, _, _, _, _, _))
+        .Times(1)
+        .WillOnce(Return(BT_STATUS_SUCCESS));
+    EXPECT_CALL(*mock_handler_,
+                MultiAdvSetInstDataMock(_, _, _, _, _, _, _, _, _, _))
+        .Times(1)
+        .WillOnce(Return(BT_STATUS_SUCCESS));
+
+    AdvertiseSettings settings;
+    AdvertiseData adv, scan_rsp;
+    ASSERT_TRUE(le_client_->StartAdvertising(
+        settings, adv, scan_rsp, LowEnergyClient::StatusCallback()));
+    ASSERT_TRUE(le_client_->IsStartingAdvertising());
+
+    fake_hal_gatt_iface_->NotifyMultiAdvEnableCallback(
+        le_client_->GetInstanceId(), BT_STATUS_SUCCESS);
+    fake_hal_gatt_iface_->NotifyMultiAdvDataCallback(
+        le_client_->GetInstanceId(), BT_STATUS_SUCCESS);
+
+    ASSERT_TRUE(le_client_->IsAdvertisingStarted());
+    ASSERT_FALSE(le_client_->IsStartingAdvertising());
+    ASSERT_FALSE(le_client_->IsStoppingAdvertising());
+  }
+
+  void AdvertiseDataTestHelper(AdvertiseData data, std::function<void(BLEStatus)> callback) {
+    AdvertiseSettings settings;
+    EXPECT_TRUE(le_client_->StartAdvertising(
+        settings, data, AdvertiseData(), callback));
+    fake_hal_gatt_iface_->NotifyMultiAdvEnableCallback(
+        le_client_->GetInstanceId(), BT_STATUS_SUCCESS);
+    fake_hal_gatt_iface_->NotifyMultiAdvDataCallback(
+        le_client_->GetInstanceId(), BT_STATUS_SUCCESS);
+    EXPECT_TRUE(le_client_->StopAdvertising(LowEnergyClient::StatusCallback()));
+    fake_hal_gatt_iface_->NotifyMultiAdvDisableCallback(
+        le_client_->GetInstanceId(), BT_STATUS_SUCCESS);
+  }
+
+ protected:
+  std::unique_ptr<LowEnergyClient> le_client_;
+
+ private:
+  int next_client_id_;
+
+  DISALLOW_COPY_AND_ASSIGN(LowEnergyClientPostRegisterTest);
+};
+
+TEST_F(LowEnergyClientTest, RegisterInstance) {
+  EXPECT_CALL(*mock_handler_, RegisterClient(_))
+      .Times(2)
+      .WillOnce(Return(BT_STATUS_FAIL))
+      .WillOnce(Return(BT_STATUS_SUCCESS));
+
+  // These will be asynchronously populated with a result when the callback
+  // executes.
+  BLEStatus status = BLE_STATUS_SUCCESS;
+  UUID cb_uuid;
+  std::unique_ptr<LowEnergyClient> client;
+  int callback_count = 0;
+
+  auto callback = [&](BLEStatus in_status, const UUID& uuid,
+                      std::unique_ptr<BluetoothInstance> in_client) {
+        status = in_status;
+        cb_uuid = uuid;
+        client = std::unique_ptr<LowEnergyClient>(
+            static_cast<LowEnergyClient*>(in_client.release()));
+        callback_count++;
+      };
+
+  UUID uuid0 = UUID::GetRandom();
+
+  // HAL returns failure.
+  EXPECT_FALSE(ble_factory_->RegisterInstance(uuid0, callback));
+  EXPECT_EQ(0, callback_count);
+
+  // HAL returns success.
+  EXPECT_TRUE(ble_factory_->RegisterInstance(uuid0, callback));
+  EXPECT_EQ(0, callback_count);
+
+  // Calling twice with the same UUID should fail with no additional call into
+  // the stack.
+  EXPECT_FALSE(ble_factory_->RegisterInstance(uuid0, callback));
+
+  ::testing::Mock::VerifyAndClearExpectations(mock_handler_.get());
+
+  // Call with a different UUID while one is pending.
+  UUID uuid1 = UUID::GetRandom();
+  EXPECT_CALL(*mock_handler_, RegisterClient(_))
+      .Times(1)
+      .WillOnce(Return(BT_STATUS_SUCCESS));
+  EXPECT_TRUE(ble_factory_->RegisterInstance(uuid1, callback));
+
+  // Trigger callback with an unknown UUID. This should get ignored.
+  UUID uuid2 = UUID::GetRandom();
+  bt_uuid_t hal_uuid = uuid2.GetBlueDroid();
+  fake_hal_gatt_iface_->NotifyRegisterClientCallback(0, 0, hal_uuid);
+  EXPECT_EQ(0, callback_count);
+
+  // |uuid0| succeeds.
+  int client_if0 = 2;  // Pick something that's not 0.
+  hal_uuid = uuid0.GetBlueDroid();
+  fake_hal_gatt_iface_->NotifyRegisterClientCallback(
+      BT_STATUS_SUCCESS, client_if0, hal_uuid);
+
+  EXPECT_EQ(1, callback_count);
+  ASSERT_TRUE(client.get() != nullptr);  // Assert to terminate in case of error
+  EXPECT_EQ(BLE_STATUS_SUCCESS, status);
+  EXPECT_EQ(client_if0, client->GetInstanceId());
+  EXPECT_EQ(uuid0, client->GetAppIdentifier());
+  EXPECT_EQ(uuid0, cb_uuid);
+
+  // The client should unregister itself when deleted.
+  EXPECT_CALL(*mock_handler_, MultiAdvDisable(client_if0))
+      .Times(1)
+      .WillOnce(Return(BT_STATUS_SUCCESS));
+  EXPECT_CALL(*mock_handler_, UnregisterClient(client_if0))
+      .Times(1)
+      .WillOnce(Return(BT_STATUS_SUCCESS));
+  client.reset();
+  ::testing::Mock::VerifyAndClearExpectations(mock_handler_.get());
+
+  // |uuid1| fails.
+  int client_if1 = 3;
+  hal_uuid = uuid1.GetBlueDroid();
+  fake_hal_gatt_iface_->NotifyRegisterClientCallback(
+      BT_STATUS_FAIL, client_if1, hal_uuid);
+
+  EXPECT_EQ(2, callback_count);
+  ASSERT_TRUE(client.get() == nullptr);  // Assert to terminate in case of error
+  EXPECT_EQ(BLE_STATUS_FAILURE, status);
+  EXPECT_EQ(uuid1, cb_uuid);
+}
+
+TEST_F(LowEnergyClientPostRegisterTest, StartAdvertisingBasic) {
+  EXPECT_FALSE(le_client_->IsAdvertisingStarted());
+  EXPECT_FALSE(le_client_->IsStartingAdvertising());
+  EXPECT_FALSE(le_client_->IsStoppingAdvertising());
+
+  // Use default advertising settings and data.
+  AdvertiseSettings settings;
+  AdvertiseData adv_data, scan_rsp;
+  int callback_count = 0;
+  BLEStatus last_status = BLE_STATUS_FAILURE;
+  auto callback = [&](BLEStatus status) {
+    last_status = status;
+    callback_count++;
+  };
+
+  EXPECT_CALL(*mock_handler_, MultiAdvEnable(_, _, _, _, _, _, _))
+      .Times(5)
+      .WillOnce(Return(BT_STATUS_FAIL))
+      .WillRepeatedly(Return(BT_STATUS_SUCCESS));
+
+  // Stack call returns failure.
+  EXPECT_FALSE(le_client_->StartAdvertising(
+      settings, adv_data, scan_rsp, callback));
+  EXPECT_FALSE(le_client_->IsAdvertisingStarted());
+  EXPECT_FALSE(le_client_->IsStartingAdvertising());
+  EXPECT_FALSE(le_client_->IsStoppingAdvertising());
+  EXPECT_EQ(0, callback_count);
+
+  // Stack call returns success.
+  EXPECT_TRUE(le_client_->StartAdvertising(
+      settings, adv_data, scan_rsp, callback));
+  EXPECT_FALSE(le_client_->IsAdvertisingStarted());
+  EXPECT_TRUE(le_client_->IsStartingAdvertising());
+  EXPECT_FALSE(le_client_->IsStoppingAdvertising());
+  EXPECT_EQ(0, callback_count);
+
+  // Already starting.
+  EXPECT_FALSE(le_client_->StartAdvertising(
+      settings, adv_data, scan_rsp, callback));
+
+  // Notify failure.
+  fake_hal_gatt_iface_->NotifyMultiAdvEnableCallback(
+      le_client_->GetInstanceId(), BT_STATUS_FAIL);
+  EXPECT_FALSE(le_client_->IsAdvertisingStarted());
+  EXPECT_FALSE(le_client_->IsStartingAdvertising());
+  EXPECT_FALSE(le_client_->IsStoppingAdvertising());
+  EXPECT_EQ(1, callback_count);
+  EXPECT_EQ(BLE_STATUS_FAILURE, last_status);
+
+  // Try again.
+  EXPECT_TRUE(le_client_->StartAdvertising(
+      settings, adv_data, scan_rsp, callback));
+  EXPECT_FALSE(le_client_->IsAdvertisingStarted());
+  EXPECT_TRUE(le_client_->IsStartingAdvertising());
+  EXPECT_FALSE(le_client_->IsStoppingAdvertising());
+  EXPECT_EQ(1, callback_count);
+
+  // Success notification should trigger advertise data update.
+  EXPECT_CALL(*mock_handler_,
+              MultiAdvSetInstDataMock(
+                  false,  // set_scan_rsp
+                  false,  // include_name
+                  false,  // incl_txpower
+                  _, _, _, _, _, _, _))
+      .Times(3)
+      .WillOnce(Return(BT_STATUS_FAIL))
+      .WillRepeatedly(Return(BT_STATUS_SUCCESS));
+
+  // Notify success for enable. The procedure will fail since setting data will
+  // fail.
+  fake_hal_gatt_iface_->NotifyMultiAdvEnableCallback(
+      le_client_->GetInstanceId(), BT_STATUS_SUCCESS);
+  EXPECT_FALSE(le_client_->IsAdvertisingStarted());
+  EXPECT_FALSE(le_client_->IsStartingAdvertising());
+  EXPECT_FALSE(le_client_->IsStoppingAdvertising());
+  EXPECT_EQ(2, callback_count);
+  EXPECT_EQ(BLE_STATUS_FAILURE, last_status);
+
+  // Try again.
+  EXPECT_TRUE(le_client_->StartAdvertising(
+      settings, adv_data, scan_rsp, callback));
+  EXPECT_FALSE(le_client_->IsAdvertisingStarted());
+  EXPECT_TRUE(le_client_->IsStartingAdvertising());
+  EXPECT_FALSE(le_client_->IsStoppingAdvertising());
+  EXPECT_EQ(2, callback_count);
+
+  // Notify success for enable. the advertise data call should succeed but
+  // operation will remain pending.
+  fake_hal_gatt_iface_->NotifyMultiAdvEnableCallback(
+      le_client_->GetInstanceId(), BT_STATUS_SUCCESS);
+  EXPECT_FALSE(le_client_->IsAdvertisingStarted());
+  EXPECT_TRUE(le_client_->IsStartingAdvertising());
+  EXPECT_FALSE(le_client_->IsStoppingAdvertising());
+  EXPECT_EQ(2, callback_count);
+
+  // Notify failure from advertising call.
+  fake_hal_gatt_iface_->NotifyMultiAdvDataCallback(
+      le_client_->GetInstanceId(), BT_STATUS_FAIL);
+  EXPECT_FALSE(le_client_->IsAdvertisingStarted());
+  EXPECT_FALSE(le_client_->IsStartingAdvertising());
+  EXPECT_FALSE(le_client_->IsStoppingAdvertising());
+  EXPECT_EQ(3, callback_count);
+  EXPECT_EQ(BLE_STATUS_FAILURE, last_status);
+
+  // Try again. Make everything succeed.
+  EXPECT_TRUE(le_client_->StartAdvertising(
+      settings, adv_data, scan_rsp, callback));
+  EXPECT_FALSE(le_client_->IsAdvertisingStarted());
+  EXPECT_TRUE(le_client_->IsStartingAdvertising());
+  EXPECT_FALSE(le_client_->IsStoppingAdvertising());
+  EXPECT_EQ(3, callback_count);
+
+  fake_hal_gatt_iface_->NotifyMultiAdvEnableCallback(
+      le_client_->GetInstanceId(), BT_STATUS_SUCCESS);
+  fake_hal_gatt_iface_->NotifyMultiAdvDataCallback(
+      le_client_->GetInstanceId(), BT_STATUS_SUCCESS);
+  EXPECT_TRUE(le_client_->IsAdvertisingStarted());
+  EXPECT_FALSE(le_client_->IsStartingAdvertising());
+  EXPECT_FALSE(le_client_->IsStoppingAdvertising());
+  EXPECT_EQ(4, callback_count);
+  EXPECT_EQ(BLE_STATUS_SUCCESS, last_status);
+
+  // Already started.
+  EXPECT_FALSE(le_client_->StartAdvertising(
+      settings, adv_data, scan_rsp, callback));
+}
+
+TEST_F(LowEnergyClientPostRegisterTest, StopAdvertisingBasic) {
+  AdvertiseSettings settings;
+
+  // Not enabled.
+  EXPECT_FALSE(le_client_->IsAdvertisingStarted());
+  EXPECT_FALSE(le_client_->StopAdvertising(LowEnergyClient::StatusCallback()));
+
+  // Start advertising for testing.
+  StartAdvertising();
+
+  int callback_count = 0;
+  BLEStatus last_status = BLE_STATUS_FAILURE;
+  auto callback = [&](BLEStatus status) {
+    last_status = status;
+    callback_count++;
+  };
+
+  EXPECT_CALL(*mock_handler_, MultiAdvDisable(_))
+      .Times(3)
+      .WillOnce(Return(BT_STATUS_FAIL))
+      .WillRepeatedly(Return(BT_STATUS_SUCCESS));
+
+  // Stack call returns failure.
+  EXPECT_FALSE(le_client_->StopAdvertising(callback));
+  EXPECT_TRUE(le_client_->IsAdvertisingStarted());
+  EXPECT_FALSE(le_client_->IsStartingAdvertising());
+  EXPECT_FALSE(le_client_->IsStoppingAdvertising());
+  EXPECT_EQ(0, callback_count);
+
+  // Stack returns success.
+  EXPECT_TRUE(le_client_->StopAdvertising(callback));
+  EXPECT_TRUE(le_client_->IsAdvertisingStarted());
+  EXPECT_FALSE(le_client_->IsStartingAdvertising());
+  EXPECT_TRUE(le_client_->IsStoppingAdvertising());
+  EXPECT_EQ(0, callback_count);
+
+  // Already disabling.
+  EXPECT_FALSE(le_client_->StopAdvertising(callback));
+  EXPECT_TRUE(le_client_->IsAdvertisingStarted());
+  EXPECT_FALSE(le_client_->IsStartingAdvertising());
+  EXPECT_TRUE(le_client_->IsStoppingAdvertising());
+  EXPECT_EQ(0, callback_count);
+
+  // Notify failure.
+  fake_hal_gatt_iface_->NotifyMultiAdvDisableCallback(
+      le_client_->GetInstanceId(), BT_STATUS_FAIL);
+  EXPECT_TRUE(le_client_->IsAdvertisingStarted());
+  EXPECT_FALSE(le_client_->IsStartingAdvertising());
+  EXPECT_FALSE(le_client_->IsStoppingAdvertising());
+  EXPECT_EQ(1, callback_count);
+  EXPECT_EQ(BLE_STATUS_FAILURE, last_status);
+
+  // Try again.
+  EXPECT_TRUE(le_client_->StopAdvertising(callback));
+  EXPECT_TRUE(le_client_->IsAdvertisingStarted());
+  EXPECT_FALSE(le_client_->IsStartingAdvertising());
+  EXPECT_TRUE(le_client_->IsStoppingAdvertising());
+  EXPECT_EQ(1, callback_count);
+
+  // Notify success.
+  fake_hal_gatt_iface_->NotifyMultiAdvDisableCallback(
+      le_client_->GetInstanceId(), BT_STATUS_SUCCESS);
+  EXPECT_FALSE(le_client_->IsAdvertisingStarted());
+  EXPECT_FALSE(le_client_->IsStartingAdvertising());
+  EXPECT_FALSE(le_client_->IsStoppingAdvertising());
+  EXPECT_EQ(2, callback_count);
+  EXPECT_EQ(BLE_STATUS_SUCCESS, last_status);
+
+  // Already stopped.
+  EXPECT_FALSE(le_client_->StopAdvertising(callback));
+}
+
+TEST_F(LowEnergyClientPostRegisterTest, InvalidAdvertiseData) {
+  const std::vector<uint8_t> data0{ 0x02, HCI_EIR_FLAGS_TYPE, 0x00 };
+  const std::vector<uint8_t> data1{
+      0x04, HCI_EIR_MANUFACTURER_SPECIFIC_TYPE, 0x01, 0x02, 0x00
+  };
+  AdvertiseData invalid_adv(data0);
+  AdvertiseData valid_adv(data1);
+
+  AdvertiseSettings settings;
+
+  EXPECT_FALSE(le_client_->StartAdvertising(
+      settings, valid_adv, invalid_adv, LowEnergyClient::StatusCallback()));
+  EXPECT_FALSE(le_client_->StartAdvertising(
+      settings, invalid_adv, valid_adv, LowEnergyClient::StatusCallback()));
+
+  // Manufacturer data not correctly formatted according to spec. We let the
+  // stack handle this case.
+  const std::vector<uint8_t> data2{ 0x01, HCI_EIR_MANUFACTURER_SPECIFIC_TYPE };
+  AdvertiseData invalid_mfc(data2);
+
+  EXPECT_CALL(*mock_handler_, MultiAdvEnable(_, _, _, _, _, _, _))
+      .Times(1)
+      .WillOnce(Return(BT_STATUS_SUCCESS));
+  EXPECT_TRUE(le_client_->StartAdvertising(
+      settings, invalid_mfc, valid_adv, LowEnergyClient::StatusCallback()));
+}
+
+TEST_F(LowEnergyClientPostRegisterTest, ScanResponse) {
+  EXPECT_FALSE(le_client_->IsAdvertisingStarted());
+  EXPECT_FALSE(le_client_->IsStartingAdvertising());
+  EXPECT_FALSE(le_client_->IsStoppingAdvertising());
+
+  AdvertiseSettings settings(
+      AdvertiseSettings::MODE_LOW_POWER,
+      base::TimeDelta::FromMilliseconds(300),
+      AdvertiseSettings::TX_POWER_LEVEL_MEDIUM,
+      false /* connectable */);
+
+  const std::vector<uint8_t> data0;
+  const std::vector<uint8_t> data1{
+      0x04, HCI_EIR_MANUFACTURER_SPECIFIC_TYPE, 0x01, 0x02, 0x00
+  };
+
+  int callback_count = 0;
+  BLEStatus last_status = BLE_STATUS_FAILURE;
+  auto callback = [&](BLEStatus status) {
+    last_status = status;
+    callback_count++;
+  };
+
+  AdvertiseData adv0(data0);
+  adv0.set_include_tx_power_level(true);
+
+  AdvertiseData adv1(data1);
+  adv1.set_include_device_name(true);
+
+  EXPECT_CALL(*mock_handler_,
+              MultiAdvEnable(le_client_->GetInstanceId(), _, _,
+                             kAdvertisingEventTypeScannable,
+                             _, _, _))
+      .Times(2)
+      .WillRepeatedly(Return(BT_STATUS_SUCCESS));
+  EXPECT_CALL(
+      *mock_handler_,
+      MultiAdvSetInstDataMock(
+          false,  // set_scan_rsp
+          false,  // include_name
+          true,  // incl_txpower,
+          _,
+          0,  // 0 bytes
+          _, _, _, _, _))
+      .Times(2)
+      .WillRepeatedly(Return(BT_STATUS_SUCCESS));
+  EXPECT_CALL(
+      *mock_handler_,
+      MultiAdvSetInstDataMock(
+          true,  // set_scan_rsp
+          true,  // include_name
+          false,  // incl_txpower,
+          _,
+          data1.size() - 2,  // Mfc. Specific data field bytes.
+          _, _, _, _, _))
+      .Times(2)
+      .WillRepeatedly(Return(BT_STATUS_SUCCESS));
+
+  // Enable success; Adv. data success; Scan rsp. fail.
+  EXPECT_TRUE(le_client_->StartAdvertising(settings, adv0, adv1, callback));
+  fake_hal_gatt_iface_->NotifyMultiAdvEnableCallback(
+      le_client_->GetInstanceId(), BT_STATUS_SUCCESS);
+  fake_hal_gatt_iface_->NotifyMultiAdvDataCallback(
+      le_client_->GetInstanceId(), BT_STATUS_SUCCESS);
+  fake_hal_gatt_iface_->NotifyMultiAdvDataCallback(
+      le_client_->GetInstanceId(), BT_STATUS_FAIL);
+
+  EXPECT_EQ(1, callback_count);
+  EXPECT_EQ(BLE_STATUS_FAILURE, last_status);
+  EXPECT_FALSE(le_client_->IsAdvertisingStarted());
+
+  // Second time everything succeeds.
+  EXPECT_TRUE(le_client_->StartAdvertising(settings, adv0, adv1, callback));
+  fake_hal_gatt_iface_->NotifyMultiAdvEnableCallback(
+      le_client_->GetInstanceId(), BT_STATUS_SUCCESS);
+  fake_hal_gatt_iface_->NotifyMultiAdvDataCallback(
+      le_client_->GetInstanceId(), BT_STATUS_SUCCESS);
+  fake_hal_gatt_iface_->NotifyMultiAdvDataCallback(
+      le_client_->GetInstanceId(), BT_STATUS_SUCCESS);
+
+  EXPECT_EQ(2, callback_count);
+  EXPECT_EQ(BLE_STATUS_SUCCESS, last_status);
+  EXPECT_TRUE(le_client_->IsAdvertisingStarted());
+}
+
+TEST_F(LowEnergyClientPostRegisterTest, AdvertiseDataParsing) {
+  // Re-initialize the test with our own custom handler.
+  TearDown();
+  std::shared_ptr<AdvertiseDataHandler> adv_handler(new AdvertiseDataHandler());
+  mock_handler_ = std::static_pointer_cast<MockGattHandler>(adv_handler);
+  SetUp();
+
+  const std::vector<uint8_t> kUUID16BitData{
+    0x03, HCI_EIR_COMPLETE_16BITS_UUID_TYPE, 0xDE, 0xAD,
+  };
+
+  const std::vector<uint8_t> kUUID32BitData{
+    0x05, HCI_EIR_COMPLETE_32BITS_UUID_TYPE, 0xDE, 0xAD, 0x01, 0x02
+  };
+
+  const std::vector<uint8_t> kUUID128BitData{
+    0x11, HCI_EIR_COMPLETE_128BITS_UUID_TYPE,
+    0xDE, 0xAD, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06,
+    0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E
+  };
+
+  const std::vector<uint8_t> kMultiUUIDData{
+    0x11, HCI_EIR_COMPLETE_128BITS_UUID_TYPE,
+    0xDE, 0xAD, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06,
+    0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E,
+    0x05, HCI_EIR_COMPLETE_32BITS_UUID_TYPE, 0xDE, 0xAD, 0xBE, 0xEF
+  };
+
+  const std::vector<uint8_t> kServiceData16Bit{
+    0x05, HCI_EIR_SERVICE_DATA_16BITS_UUID_TYPE, 0xDE, 0xAD, 0xBE, 0xEF
+  };
+
+  const std::vector<uint8_t> kServiceData32Bit{
+    0x07, HCI_EIR_SERVICE_DATA_32BITS_UUID_TYPE, 0xDE, 0xAD, 0x01, 0x02, 0xBE, 0xEF
+  };
+
+  const std::vector<uint8_t> kServiceData128Bit{
+    0x13, HCI_EIR_SERVICE_DATA_128BITS_UUID_TYPE,
+    0xDE, 0xAD, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06,
+    0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0xBE, 0xEF
+  };
+
+  const std::vector<uint8_t> kMultiServiceData{
+    0x13, HCI_EIR_SERVICE_DATA_128BITS_UUID_TYPE,
+    0xDE, 0xAD, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0xBE, 0xEF,
+    0xDE, 0xAD, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06,
+    0x05, HCI_EIR_SERVICE_DATA_16BITS_UUID_TYPE, 0xDE, 0xAD, 0xBE, 0xEF
+  };
+
+  const std::vector<uint8_t> kServiceUUIDMatch{
+    0x05, HCI_EIR_COMPLETE_32BITS_UUID_TYPE, 0xDE, 0xAD, 0x01, 0x02,
+    0x07, HCI_EIR_SERVICE_DATA_32BITS_UUID_TYPE, 0xDE, 0xAD, 0x01, 0x02, 0xBE, 0xEF
+  };
+
+  const std::vector<uint8_t> kServiceUUIDMismatch{
+    0x05, HCI_EIR_COMPLETE_32BITS_UUID_TYPE, 0xDE, 0xAD, 0x01, 0x01,
+    0x07, HCI_EIR_SERVICE_DATA_32BITS_UUID_TYPE, 0xDE, 0xAD, 0x01, 0x02, 0xBE, 0xEF
+  };
+
+  AdvertiseData uuid_16bit_adv(kUUID16BitData);
+  AdvertiseData uuid_32bit_adv(kUUID32BitData);
+  AdvertiseData uuid_128bit_adv(kUUID128BitData);
+  AdvertiseData multi_uuid_adv(kMultiUUIDData);
+
+  AdvertiseData service_16bit_adv(kServiceData16Bit);
+  AdvertiseData service_32bit_adv(kServiceData32Bit);
+  AdvertiseData service_128bit_adv(kServiceData128Bit);
+  AdvertiseData multi_service_adv(kMultiServiceData);
+
+  AdvertiseData service_uuid_match(kServiceUUIDMatch);
+  AdvertiseData service_uuid_mismatch(kServiceUUIDMismatch);
+
+  AdvertiseSettings settings;
+
+  int callback_count = 0;
+  BLEStatus last_status = BLE_STATUS_FAILURE;
+  auto callback = [&](BLEStatus status) {
+    last_status = status;
+    callback_count++;
+  };
+
+  EXPECT_CALL(*mock_handler_, MultiAdvEnable(_, _, _, _, _, _, _))
+      .WillRepeatedly(Return(BT_STATUS_SUCCESS));
+  EXPECT_CALL(*mock_handler_, MultiAdvDisable(_))
+      .WillRepeatedly(Return(BT_STATUS_SUCCESS));
+
+  // Multiple UUID test, should fail due to only one UUID allowed
+  EXPECT_TRUE(le_client_->StartAdvertising(
+              settings, multi_uuid_adv, AdvertiseData(), callback));
+  fake_hal_gatt_iface_->NotifyMultiAdvEnableCallback(
+          le_client_->GetInstanceId(), BT_STATUS_SUCCESS);
+  EXPECT_EQ(1, callback_count);
+  EXPECT_EQ(0, adv_handler->call_count());
+  EXPECT_EQ(BLE_STATUS_FAILURE, last_status);
+
+  // Multiple Service Data test, should fail due to only one service data allowed
+  EXPECT_TRUE(le_client_->StartAdvertising(
+              settings, multi_uuid_adv, AdvertiseData(), callback));
+  fake_hal_gatt_iface_->NotifyMultiAdvEnableCallback(
+          le_client_->GetInstanceId(), BT_STATUS_SUCCESS);
+  EXPECT_EQ(2, callback_count);
+  EXPECT_EQ(0, adv_handler->call_count());
+  EXPECT_EQ(BLE_STATUS_FAILURE, last_status);
+
+  // 16bit uuid test, should succeed with correctly parsed uuid in little-endian
+  // 128-bit format.
+  AdvertiseDataTestHelper(uuid_16bit_adv, callback);
+  EXPECT_EQ(3, callback_count);
+  EXPECT_EQ(1, adv_handler->call_count());
+  const std::vector<uint8_t> uuid_16bit_canonical{
+    0xFB, 0x34, 0x9b, 0x5F, 0x80, 0x00, 0x00, 0x80, 0x00, 0x10, 0x00, 0x00,
+    0xDE, 0xAD, 0x00, 0x00
+  };
+  EXPECT_EQ(uuid_16bit_canonical, adv_handler->uuid_data());
+
+  // 32bit uuid test, should succeed with correctly parsed uuid
+  AdvertiseDataTestHelper(uuid_32bit_adv, callback);
+  EXPECT_EQ(4, callback_count);
+  EXPECT_EQ(2, adv_handler->call_count());
+  const std::vector<uint8_t> uuid_32bit_canonical{
+    0xFB, 0x34, 0x9b, 0x5F, 0x80, 0x00, 0x00, 0x80, 0x00, 0x10, 0x00, 0x00,
+    0xDE, 0xAD, 0x01, 0x02
+  };
+  EXPECT_EQ(uuid_32bit_canonical, adv_handler->uuid_data());
+
+  // 128bit uuid test, should succeed with correctly parsed uuid
+  AdvertiseDataTestHelper(uuid_128bit_adv, callback);
+  EXPECT_EQ(5, callback_count);
+  EXPECT_EQ(3, adv_handler->call_count());
+  const std::vector<uint8_t> uuid_128bit{
+    0xDE, 0xAD, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06,
+    0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E
+  };
+  EXPECT_EQ(uuid_128bit, adv_handler->uuid_data());
+
+  const std::vector<uint8_t> service_data{ 0xBE, 0xEF };
+
+  // Service data with 16bit uuid included, should succeed with
+  // uuid and service data parsed out
+  AdvertiseDataTestHelper(service_16bit_adv, callback);
+  EXPECT_EQ(6, callback_count);
+  EXPECT_EQ(4, adv_handler->call_count());
+  EXPECT_EQ(service_data, adv_handler->service_data());
+  EXPECT_EQ(uuid_16bit_canonical, adv_handler->uuid_data());
+
+  // Service data with 32bit uuid included, should succeed with
+  // uuid and service data parsed out
+  AdvertiseDataTestHelper(service_32bit_adv, callback);
+  EXPECT_EQ(7, callback_count);
+  EXPECT_EQ(5, adv_handler->call_count());
+  EXPECT_EQ(service_data, adv_handler->service_data());
+  EXPECT_EQ(uuid_32bit_canonical, adv_handler->uuid_data());
+
+  // Service data with 128bit uuid included, should succeed with
+  // uuid and service data parsed out
+  AdvertiseDataTestHelper(service_128bit_adv, callback);
+  EXPECT_EQ(8, callback_count);
+  EXPECT_EQ(6, adv_handler->call_count());
+  EXPECT_EQ(service_data, adv_handler->service_data());
+  EXPECT_EQ(uuid_128bit, adv_handler->uuid_data());
+
+  // Service data and UUID where the UUID for both match, should succeed.
+  AdvertiseDataTestHelper(service_uuid_match, callback);
+  EXPECT_EQ(9, callback_count);
+  EXPECT_EQ(7, adv_handler->call_count());
+  EXPECT_EQ(service_data, adv_handler->service_data());
+  EXPECT_EQ(uuid_32bit_canonical, adv_handler->uuid_data());
+
+  // Service data and UUID where the UUID for dont match, should fail
+  EXPECT_TRUE(le_client_->StartAdvertising(
+              settings, service_uuid_mismatch, AdvertiseData(), callback));
+  fake_hal_gatt_iface_->NotifyMultiAdvEnableCallback(
+      le_client_->GetInstanceId(), BT_STATUS_SUCCESS);
+  EXPECT_EQ(10, callback_count);
+  EXPECT_EQ(7, adv_handler->call_count());
+  EXPECT_EQ(BLE_STATUS_FAILURE, last_status);
+}
+
+TEST_F(LowEnergyClientPostRegisterTest, ScanSettings) {
+  EXPECT_CALL(mock_adapter_, IsEnabled())
+      .WillOnce(Return(false))
+      .WillRepeatedly(Return(true));
+
+  ScanSettings settings;
+  std::vector<ScanFilter> filters;
+
+  // Adapter is not enabled.
+  EXPECT_FALSE(le_client_->StartScan(settings, filters));
+
+  // TODO(jpawlowski): add tests checking settings and filter parsing when
+  // implemented
+
+  // These should succeed and result in a HAL call
+  EXPECT_CALL(*mock_handler_, Scan(true))
+      .Times(1)
+      .WillOnce(Return(BT_STATUS_SUCCESS));
+  EXPECT_TRUE(le_client_->StartScan(settings, filters));
+
+  // These should succeed and result in a HAL call
+  EXPECT_CALL(*mock_handler_, Scan(false))
+      .Times(1)
+      .WillOnce(Return(BT_STATUS_SUCCESS));
+  EXPECT_TRUE(le_client_->StopScan());
+
+  ::testing::Mock::VerifyAndClearExpectations(mock_handler_.get());
+}
+
+TEST_F(LowEnergyClientPostRegisterTest, ScanRecord) {
+  TestDelegate delegate;
+  le_client_->SetDelegate(&delegate);
+
+  EXPECT_EQ(0, delegate.scan_result_count());
+
+  const uint8_t kTestRecord0[] = { 0x02, 0x01, 0x00, 0x00 };
+  const uint8_t kTestRecord1[] = { 0x00 };
+  const uint8_t kTestRecord2[] = {
+    0x01, 0x00, 0x01, 0x00, 0x01, 0x00, 0x01, 0x00, 0x01, 0x00, 0x01, 0x00,
+    0x01, 0x00, 0x01, 0x00, 0x01, 0x00, 0x01, 0x00, 0x01, 0x00, 0x01, 0x00,
+    0x01, 0x00, 0x01, 0x00, 0x01, 0x00, 0x01, 0x00, 0x01, 0x00, 0x01, 0x00,
+    0x01, 0x00, 0x01, 0x00, 0x01, 0x00, 0x01, 0x00, 0x01, 0x00, 0x01, 0x00,
+    0x01, 0x00, 0x01, 0x00, 0x01, 0x00, 0x01, 0x00, 0x01, 0x00, 0x01, 0x00,
+    0x01, 0x00
+  };
+  const bt_bdaddr_t kTestAddress = {
+    { 0x01, 0x02, 0x03, 0x0A, 0x0B, 0x0C }
+  };
+  const char kTestAddressStr[] = "01:02:03:0A:0B:0C";
+  const int kTestRssi = 64;
+
+  // Scan wasn't started. Result should be ignored.
+  fake_hal_gatt_iface_->NotifyScanResultCallback(
+      kTestAddress, kTestRssi, (uint8_t*) kTestRecord0);
+  EXPECT_EQ(0, delegate.scan_result_count());
+
+  // Start a scan session for |le_client_|.
+  EXPECT_CALL(mock_adapter_, IsEnabled())
+      .Times(1)
+      .WillOnce(Return(true));
+  EXPECT_CALL(*mock_handler_, Scan(_))
+      .Times(2)
+      .WillOnce(Return(BT_STATUS_SUCCESS))
+      .WillOnce(Return(BT_STATUS_SUCCESS));
+  ScanSettings settings;
+  std::vector<ScanFilter> filters;
+  ASSERT_TRUE(le_client_->StartScan(settings, filters));
+
+  fake_hal_gatt_iface_->NotifyScanResultCallback(
+      kTestAddress, kTestRssi, (uint8_t*) kTestRecord0);
+  EXPECT_EQ(1, delegate.scan_result_count());
+  EXPECT_EQ(kTestAddressStr, delegate.last_scan_result().device_address());
+  EXPECT_EQ(kTestRssi, delegate.last_scan_result().rssi());
+  EXPECT_EQ(3U, delegate.last_scan_result().scan_record().size());
+
+  fake_hal_gatt_iface_->NotifyScanResultCallback(
+      kTestAddress, kTestRssi, (uint8_t*) kTestRecord1);
+  EXPECT_EQ(2, delegate.scan_result_count());
+  EXPECT_EQ(kTestAddressStr, delegate.last_scan_result().device_address());
+  EXPECT_EQ(kTestRssi, delegate.last_scan_result().rssi());
+  EXPECT_TRUE(delegate.last_scan_result().scan_record().empty());
+
+  fake_hal_gatt_iface_->NotifyScanResultCallback(
+      kTestAddress, kTestRssi, (uint8_t*) kTestRecord2);
+  EXPECT_EQ(3, delegate.scan_result_count());
+  EXPECT_EQ(kTestAddressStr, delegate.last_scan_result().device_address());
+  EXPECT_EQ(kTestRssi, delegate.last_scan_result().rssi());
+  EXPECT_EQ(62U, delegate.last_scan_result().scan_record().size());
+
+  le_client_->SetDelegate(nullptr);
+}
+
+MATCHER_P(BitEq, x, std::string(negation ? "isn't" : "is") +
+                        " bitwise equal to " + ::testing::PrintToString(x)) {
+  static_assert(sizeof(x) == sizeof(arg), "Size mismatch");
+  return std::memcmp(&arg, &x, sizeof(x)) == 0;
+}
+
+TEST_F(LowEnergyClientPostRegisterTest, Connect) {
+  const bt_bdaddr_t kTestAddress = {
+    { 0x01, 0x02, 0x03, 0x0A, 0x0B, 0x0C }
+  };
+  const char kTestAddressStr[] = "01:02:03:0A:0B:0C";
+  const bool kTestDirect = false;
+  const int connId = 12;
+
+  TestDelegate delegate;
+  le_client_->SetDelegate(&delegate);
+
+  // TODO(jpawlowski): NotifyConnectCallback should be called after returning
+  // success, fix it when it becomes important.
+  // These should succeed and result in a HAL call
+  EXPECT_CALL(*mock_handler_, Connect(le_client_->GetInstanceId(),
+          Pointee(BitEq(kTestAddress)), kTestDirect, BT_TRANSPORT_LE))
+      .Times(1)
+      .WillOnce(DoAll(
+        Invoke([&](int client_id, const bt_bdaddr_t *bd_addr, bool is_direct,
+                   int transport){
+          fake_hal_gatt_iface_->NotifyConnectCallback(connId, BT_STATUS_SUCCESS,
+                                                      client_id, *bd_addr);
+        }),
+        Return(BT_STATUS_SUCCESS)));
+
+  EXPECT_TRUE(le_client_->Connect(kTestAddressStr, kTestDirect));
+  EXPECT_EQ(1, delegate.connection_state_count());
+
+  // TODO(jpawlowski): same as above
+  // These should succeed and result in a HAL call
+  EXPECT_CALL(*mock_handler_, Disconnect(le_client_->GetInstanceId(),
+        Pointee(BitEq(kTestAddress)), connId))
+      .Times(1)
+      .WillOnce(DoAll(
+        Invoke([&](int client_id, const bt_bdaddr_t *bd_addr, int connId){
+          fake_hal_gatt_iface_->NotifyDisconnectCallback(connId,
+                                                         BT_STATUS_SUCCESS,
+                                                         client_id, *bd_addr);
+        }),
+        Return(BT_STATUS_SUCCESS)));
+
+  EXPECT_TRUE(le_client_->Disconnect(kTestAddressStr));
+  EXPECT_EQ(2, delegate.connection_state_count());
+
+  le_client_->SetDelegate(nullptr);
+  ::testing::Mock::VerifyAndClearExpectations(mock_handler_.get());
+}
+
+
+}  // namespace
+}  // namespace bluetooth
diff --git a/rtkbt/code/bt/service/test/main.cpp b/rtkbt/code/bt/service/test/main.cpp
new file mode 100755
index 0000000..458a83b
--- /dev/null
+++ b/rtkbt/code/bt/service/test/main.cpp
@@ -0,0 +1,36 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#ifdef BT_LIBCHROME_NDEBUG
+#define NDEBUG 1
+#endif
+
+#include <base/at_exit.h>
+#include <base/command_line.h>
+#include <base/logging.h>
+
+#include <gtest/gtest.h>
+
+GTEST_API_ int main(int argc, char **argv) {
+  base::AtExitManager exit_manager;
+  base::CommandLine::Init(argc, argv);
+  logging::LoggingSettings log_settings;
+  logging::InitLogging(log_settings);
+
+  LOG(INFO) << "Running Bluetooth daemon unit tests.";
+  testing::InitGoogleTest(&argc, argv);
+  return RUN_ALL_TESTS();
+}
diff --git a/rtkbt/code/bt/service/test/mock_adapter.h b/rtkbt/code/bt/service/test/mock_adapter.h
new file mode 100755
index 0000000..b561926
--- /dev/null
+++ b/rtkbt/code/bt/service/test/mock_adapter.h
@@ -0,0 +1,54 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#pragma once
+
+#include <gmock/gmock.h>
+
+#include "service/daemon.h"
+
+namespace bluetooth {
+namespace testing {
+
+class MockAdapter : public Adapter {
+ public:
+  MockAdapter() = default;
+  ~MockAdapter() override = default;
+
+  MOCK_METHOD1(AddObserver, void(Observer*));
+  MOCK_METHOD1(RemoveObserver, void(Observer*));
+  MOCK_CONST_METHOD0(GetState, AdapterState());
+  MOCK_CONST_METHOD0(IsEnabled, bool());
+  MOCK_METHOD1(Enable, bool(bool));
+  MOCK_METHOD0(Disable, bool());
+  MOCK_CONST_METHOD0(GetName, std::string());
+  MOCK_METHOD1(SetName, bool(const std::string&));
+  MOCK_CONST_METHOD0(GetAddress, std::string());
+  MOCK_METHOD0(IsMultiAdvertisementSupported, bool());
+  MOCK_METHOD1(IsDeviceConnected, bool(const std::string&));
+  MOCK_METHOD0(GetTotalNumberOfTrackableAdvertisements, int());
+  MOCK_METHOD0(IsOffloadedFilteringSupported, bool());
+  MOCK_METHOD0(IsOffloadedScanBatchingSupported, bool());
+  MOCK_CONST_METHOD0(GetLowEnergyClientFactory, LowEnergyClientFactory*());
+  MOCK_CONST_METHOD0(GetGattClientFactory, GattClientFactory*());
+  MOCK_CONST_METHOD0(GetGattServerFactory, GattServerFactory*());
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(MockAdapter);
+};
+
+}  // namespace testing
+}  // namespace bluetooth
diff --git a/rtkbt/code/bt/service/test/mock_daemon.h b/rtkbt/code/bt/service/test/mock_daemon.h
new file mode 100755
index 0000000..a5dd974
--- /dev/null
+++ b/rtkbt/code/bt/service/test/mock_daemon.h
@@ -0,0 +1,41 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#pragma once
+
+#include <gmock/gmock.h>
+
+#include "service/daemon.h"
+
+namespace bluetooth {
+namespace testing {
+
+class MockDaemon : public Daemon {
+ public:
+  MockDaemon() = default;
+  ~MockDaemon() override = default;
+
+  MOCK_CONST_METHOD0(GetSettings, Settings*());
+  MOCK_CONST_METHOD0(GetMessageLoop, base::MessageLoop*());
+  MOCK_METHOD0(StartMainLoop, void());
+  MOCK_METHOD0(Init, bool());
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(MockDaemon);
+};
+
+}  // namespace testing
+}  // namespace bluetooth
diff --git a/rtkbt/code/bt/service/test/parcel_helpers_unittest.cpp b/rtkbt/code/bt/service/test/parcel_helpers_unittest.cpp
new file mode 100755
index 0000000..d8ac12c
--- /dev/null
+++ b/rtkbt/code/bt/service/test/parcel_helpers_unittest.cpp
@@ -0,0 +1,212 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#include <gtest/gtest.h>
+
+#include "service/common/bluetooth/advertise_data.h"
+#include "service/common/bluetooth/advertise_settings.h"
+#include "service/common/bluetooth/binder/parcel_helpers.h"
+
+using android::Parcel;
+
+using bluetooth::AdvertiseData;
+using bluetooth::AdvertiseSettings;
+using bluetooth::GattIdentifier;
+using bluetooth::ScanFilter;
+using bluetooth::ScanResult;
+using bluetooth::ScanSettings;
+using bluetooth::UUID;
+
+namespace ipc {
+namespace binder {
+namespace {
+
+bool TestAdvertiseData(const AdvertiseData &adv_in) {
+  Parcel parcel;
+
+  WriteAdvertiseDataToParcel(adv_in, &parcel);
+  parcel.setDataPosition(0);
+  auto adv_out = CreateAdvertiseDataFromParcel(parcel);
+
+  return adv_in == *adv_out;
+}
+
+bool TestAdvertiseSettings(const AdvertiseSettings &settings_in) {
+  Parcel parcel;
+
+  WriteAdvertiseSettingsToParcel(settings_in, &parcel);
+  parcel.setDataPosition(0);
+  auto settings_out = CreateAdvertiseSettingsFromParcel(parcel);
+
+  return settings_in == *settings_out;
+}
+
+bool TestUUID(const UUID& uuid_in) {
+  Parcel parcel;
+
+  WriteUUIDToParcel(uuid_in, &parcel);
+  parcel.setDataPosition(0);
+  auto uuid_out = CreateUUIDFromParcel(parcel);
+
+  return uuid_in == *uuid_out;
+}
+
+bool TestGattIdentifier(const GattIdentifier& id_in) {
+  Parcel parcel;
+
+  WriteGattIdentifierToParcel(id_in, &parcel);
+  parcel.setDataPosition(0);
+  auto id_out = CreateGattIdentifierFromParcel(parcel);
+
+  return id_in == *id_out;
+}
+
+bool TestScanSettings(const ScanSettings& settings_in) {
+  Parcel parcel;
+  WriteScanSettingsToParcel(settings_in, &parcel);
+  parcel.setDataPosition(0);
+  auto settings_out = CreateScanSettingsFromParcel(parcel);
+
+  return settings_in == *settings_out;
+}
+
+bool TestScanFilter(const ScanFilter& filter_in) {
+  Parcel parcel;
+  WriteScanFilterToParcel(filter_in, &parcel);
+  parcel.setDataPosition(0);
+  auto filter_out = CreateScanFilterFromParcel(parcel);
+
+  return filter_in == *filter_out;
+}
+
+bool TestScanResult(const ScanResult& result_in) {
+  Parcel parcel;
+  WriteScanResultToParcel(result_in, &parcel);
+  parcel.setDataPosition(0);
+  auto result_out = CreateScanResultFromParcel(parcel);
+  assert(result_out.get() != nullptr);
+
+  return result_in == *result_out;
+}
+
+TEST(ParcelHelpersTest, EmptyAdvertiseData) {
+  std::vector<uint8_t> data;
+  AdvertiseData adv(data);
+
+  EXPECT_TRUE(TestAdvertiseData(adv));
+}
+
+TEST(ParcelHelpersTest, NonEmptyAdvertiseData) {
+  std::vector<uint8_t> data{ 0x02, 0x02, 0x00 };
+  AdvertiseData adv0(data);
+  adv0.set_include_tx_power_level(true);
+  EXPECT_TRUE(TestAdvertiseData(adv0));
+
+  AdvertiseData adv1(data);
+  adv1.set_include_device_name(true);
+  EXPECT_TRUE(TestAdvertiseData(adv1));
+
+  AdvertiseData adv2(data);
+  adv2.set_include_tx_power_level(true);
+  adv2.set_include_device_name(true);
+  EXPECT_TRUE(TestAdvertiseData(adv2));
+}
+
+TEST(ParcelHelpersTest, DefaultAdvertiseSettings) {
+  AdvertiseSettings settings;
+  EXPECT_TRUE(TestAdvertiseSettings(settings));
+}
+
+TEST(ParcelHelpersTest, NonEmptyAdvertiseSettings) {
+  AdvertiseSettings settings(
+      AdvertiseSettings::MODE_BALANCED,
+      base::TimeDelta::FromMilliseconds(150),
+      AdvertiseSettings::TX_POWER_LEVEL_HIGH,
+      false /* connectable */);
+  EXPECT_TRUE(TestAdvertiseSettings(settings));
+}
+
+TEST(ParcelHelpersTest, UUID) {
+  // Try a whole bunch of UUIDs.
+  for (int i = 0; i < 10; i++) {
+    UUID uuid = UUID::GetRandom();
+    TestUUID(uuid);
+  }
+}
+
+TEST(ParcelHelpersTest, GattIdentifier) {
+  UUID uuid0 = UUID::GetRandom();
+  UUID uuid1 = UUID::GetRandom();
+  UUID uuid2 = UUID::GetRandom();
+
+  auto service_id = GattIdentifier::CreateServiceId(
+      "01:23:45:67:89:ab", 5, uuid0, false);
+  auto char_id = GattIdentifier::CreateCharacteristicId(3, uuid1, *service_id);
+  auto desc_id = GattIdentifier::CreateDescriptorId(10, uuid2, *char_id);
+
+  TestGattIdentifier(*service_id);
+  TestGattIdentifier(*char_id);
+  TestGattIdentifier(*desc_id);
+}
+
+TEST(ParcelHelpersTest, ScanSettings) {
+  ScanSettings settings0;
+  ScanSettings settings1(
+      ScanSettings::MODE_BALANCED,
+      ScanSettings::CALLBACK_TYPE_FIRST_MATCH,
+      ScanSettings::RESULT_TYPE_ABBREVIATED,
+      base::TimeDelta::FromMilliseconds(150),
+      ScanSettings::MATCH_MODE_STICKY,
+      ScanSettings::MATCH_COUNT_FEW_ADVERTISEMENTS);
+
+  EXPECT_TRUE(TestScanSettings(settings0));
+  EXPECT_TRUE(TestScanSettings(settings1));
+}
+
+TEST(ParcelHelpersTest, ScanFilter) {
+  ScanFilter filter;
+
+  filter.set_device_name("Test Device Name");
+  ASSERT_TRUE(filter.SetDeviceAddress("01:02:04:AB:CD:EF"));
+  EXPECT_TRUE(TestScanFilter(filter));
+
+  UUID uuid = UUID::GetRandom();
+  filter.SetServiceUuid(uuid);
+  EXPECT_TRUE(TestScanFilter(filter));
+
+  UUID mask = UUID::GetRandom();
+  filter.SetServiceUuidWithMask(uuid, mask);
+  EXPECT_TRUE(TestScanFilter(filter));
+}
+
+TEST(ParcelHelpersTest, ScanResult) {
+  const char kTestAddress[] = "01:02:03:AB:CD:EF";
+
+  const std::vector<uint8_t> kEmptyBytes;
+  const std::vector<uint8_t> kTestBytes{ 0x01, 0x02, 0x03 };
+
+  const int kTestRssi = 127;
+
+  ScanResult result0(kTestAddress, kEmptyBytes, kTestRssi);
+  ScanResult result1(kTestAddress, kTestBytes, kTestRssi);
+
+  EXPECT_TRUE(TestScanResult(result0));
+  EXPECT_TRUE(TestScanResult(result1));
+}
+
+}  // namespace
+}  // namespace binder
+}  // namespace ipc
diff --git a/rtkbt/code/bt/service/test/settings_unittest.cpp b/rtkbt/code/bt/service/test/settings_unittest.cpp
new file mode 100755
index 0000000..52145a8
--- /dev/null
+++ b/rtkbt/code/bt/service/test/settings_unittest.cpp
@@ -0,0 +1,112 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#include <base/at_exit.h>
+#include <base/command_line.h>
+#include <base/macros.h>
+#include <gtest/gtest.h>
+
+#include "service/settings.h"
+#include "service/switches.h"
+
+using bluetooth::Settings;
+using namespace bluetooth::switches;
+
+namespace {
+
+class SettingsTest : public ::testing::Test {
+ public:
+  SettingsTest() = default;
+
+  void SetUp() override {
+    base::CommandLine::Reset();
+  }
+
+  void TearDown() override {
+    base::CommandLine::Reset();
+  }
+
+ protected:
+  base::AtExitManager exit_manager_;
+  Settings settings_;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(SettingsTest);
+};
+
+TEST_F(SettingsTest, EmptyCommandLine) {
+  const base::CommandLine::CharType* argv[] = { "program" };
+  EXPECT_TRUE(base::CommandLine::Init(arraysize(argv), argv));
+  EXPECT_TRUE(settings_.Init());
+}
+
+TEST_F(SettingsTest, UnexpectedSwitches1) {
+  const base::CommandLine::CharType* argv[] = {
+    "program", "--create-ipc-socket=foobar", "--foobarbaz"
+  };
+  EXPECT_TRUE(base::CommandLine::Init(arraysize(argv), argv));
+  EXPECT_FALSE(settings_.Init());
+}
+
+TEST_F(SettingsTest, UnexpectedSwitches2) {
+  const base::CommandLine::CharType* argv[] = {
+    "program", "--foobarbaz"
+  };
+  EXPECT_TRUE(base::CommandLine::Init(arraysize(argv), argv));
+  EXPECT_FALSE(settings_.Init());
+}
+
+TEST_F(SettingsTest, UnexpectedArguments1) {
+  const base::CommandLine::CharType* argv[] = {
+    "program", "foobarbaz"
+  };
+  EXPECT_TRUE(base::CommandLine::Init(arraysize(argv), argv));
+  EXPECT_FALSE(settings_.Init());
+}
+
+TEST_F(SettingsTest, UnexpectedArguments2) {
+  const base::CommandLine::CharType* argv[] = {
+    "program", "--create-ipc-socket=foobar", "foobarbaz"
+  };
+  EXPECT_TRUE(base::CommandLine::Init(arraysize(argv), argv));
+  EXPECT_FALSE(settings_.Init());
+}
+
+TEST_F(SettingsTest, TooManyIpcOptions) {
+  const base::CommandLine::CharType* argv[] = {
+      "program", "--create-ipc-socket=foobar",
+      "--android-ipc-socket-suffix=foobar"};
+  EXPECT_TRUE(base::CommandLine::Init(arraysize(argv), argv));
+  EXPECT_FALSE(settings_.Init());
+}
+
+TEST_F(SettingsTest, GoodArgumentsCreateIpc) {
+  const base::CommandLine::CharType* argv[] = {
+    "program", "--create-ipc-socket=foobar"
+  };
+  EXPECT_TRUE(base::CommandLine::Init(arraysize(argv), argv));
+  EXPECT_TRUE(settings_.Init());
+}
+
+TEST_F(SettingsTest, GoodArgumentsAndroidIpc) {
+  const base::CommandLine::CharType* argv[] = {
+    "program", "--android-ipc-socket-suffix=foobar"
+  };
+  EXPECT_TRUE(base::CommandLine::Init(arraysize(argv), argv));
+  EXPECT_TRUE(settings_.Init());
+}
+
+}  // namespace
diff --git a/rtkbt/code/bt/service/test/stub_ipc_handler_binder.cpp b/rtkbt/code/bt/service/test/stub_ipc_handler_binder.cpp
new file mode 100755
index 0000000..6f5a13d
--- /dev/null
+++ b/rtkbt/code/bt/service/test/stub_ipc_handler_binder.cpp
@@ -0,0 +1,49 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#include "service/ipc/binder/ipc_handler_binder.h"
+
+// TODO(armansito): This is a crappy workaround to link IPCHandlerBinder into
+// host-native unit tests. We should instead figure out a way to build Binder
+// unit tests for host.
+
+namespace ipc {
+
+IPCHandlerBinder::IPCHandlerBinder(
+    bluetooth::Adapter* adapter,
+    IPCManager::Delegate* delegate)
+    : IPCHandler(adapter, delegate) {
+  // Stub
+}
+
+IPCHandlerBinder::~IPCHandlerBinder() {
+  // Stub
+}
+
+bool IPCHandlerBinder::Run() {
+  // Stub
+  return false;
+}
+
+void IPCHandlerBinder::Stop() {
+  // Stub
+}
+
+void IPCHandlerBinder::NotifyStarted() {
+  // Stub
+}
+
+}  // namespace
diff --git a/rtkbt/code/bt/service/test/stub_ipc_handler_linux.cpp b/rtkbt/code/bt/service/test/stub_ipc_handler_linux.cpp
new file mode 100755
index 0000000..a36717e
--- /dev/null
+++ b/rtkbt/code/bt/service/test/stub_ipc_handler_linux.cpp
@@ -0,0 +1,72 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#include "service/ipc/ipc_handler_linux.h"
+
+// TODO(keybuk): This is a crappy workaround to link IPCHandlerLinux into
+// host-native unit tests. IPCManager shouldn't explicitly reference these
+// classes.
+
+namespace ipc {
+
+IPCHandlerLinux::IPCHandlerLinux(
+    bluetooth::Adapter* adapter,
+    IPCManager::Delegate* delegate)
+    : IPCHandler(adapter, delegate),
+      running_(false),
+      thread_("IPCHandlerLinux"),
+      keep_running_(true) {
+  // Stub
+}
+
+IPCHandlerLinux::~IPCHandlerLinux() {
+  // Stub
+}
+
+bool IPCHandlerLinux::Run() {
+  // Stub
+  return false;
+}
+
+void IPCHandlerLinux::Stop() {
+  // Stub
+}
+
+void IPCHandlerLinux::StartListeningOnThread() {
+  // Stub
+}
+
+void IPCHandlerLinux::ShutDownOnOriginThread() {
+  // Stub
+}
+
+void IPCHandlerLinux::NotifyStartedOnOriginThread() {
+  // Stub
+}
+
+void IPCHandlerLinux::NotifyStartedOnCurrentThread() {
+  // Stub
+}
+
+void IPCHandlerLinux::NotifyStoppedOnOriginThread() {
+  // Stub
+}
+
+void IPCHandlerLinux::NotifyStoppedOnCurrentThread() {
+  // Stub
+}
+
+}  // namespace
diff --git a/rtkbt/code/bt/service/test/util_unittest.cpp b/rtkbt/code/bt/service/test/util_unittest.cpp
new file mode 100755
index 0000000..78960d9
--- /dev/null
+++ b/rtkbt/code/bt/service/test/util_unittest.cpp
@@ -0,0 +1,46 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#include <gtest/gtest.h>
+
+#include "service/common/bluetooth/util/address_helper.h"
+
+namespace util {
+
+TEST(UtilTest, IsAddressValid) {
+  EXPECT_FALSE(IsAddressValid(""));
+  EXPECT_FALSE(IsAddressValid("000000000000"));
+  EXPECT_FALSE(IsAddressValid("00:00:00:00:0000"));
+  EXPECT_FALSE(IsAddressValid("00:00:00:00:00:0"));
+  EXPECT_FALSE(IsAddressValid("00:00:00:00:00:0;"));
+  EXPECT_TRUE(IsAddressValid("00:00:00:00:00:00"));
+  EXPECT_FALSE(IsAddressValid("aB:cD:eF:Gh:iJ:Kl"));
+}
+
+TEST(UtilTest, BdAddrFromString) {
+  bt_bdaddr_t addr;
+  memset(&addr, 0, sizeof(addr));
+
+  EXPECT_TRUE(BdAddrFromString("00:00:00:00:00:00", &addr));
+  const bt_bdaddr_t result0 = {{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }};
+  EXPECT_EQ(0, memcmp(&addr, &result0, sizeof(addr)));
+
+  EXPECT_TRUE(BdAddrFromString("ab:01:4C:d5:21:9f", &addr));
+  const bt_bdaddr_t result1 = {{ 0xab, 0x01, 0x4c, 0xd5, 0x21, 0x9f }};
+  EXPECT_EQ(0, memcmp(&addr, &result1, sizeof(addr)));
+}
+
+}  // namespace util
diff --git a/rtkbt/code/bt/service/test/uuid_unittest.cpp b/rtkbt/code/bt/service/test/uuid_unittest.cpp
new file mode 100755
index 0000000..207be4a
--- /dev/null
+++ b/rtkbt/code/bt/service/test/uuid_unittest.cpp
@@ -0,0 +1,162 @@
+//
+//  Copyright (C) 2015 Google, Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at:
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+#include <algorithm>
+#include <array>
+#include <stdint.h>
+
+#include <gtest/gtest.h>
+
+#include "service/common/bluetooth/uuid.h"
+
+using namespace bluetooth;
+
+namespace {
+
+const std::array<uint8_t, UUID::kNumBytes128> kBtSigBaseUUID = {
+    { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00,
+      0x80, 0x00, 0x00, 0x80, 0x5f, 0x9b, 0x34, 0xfb, }
+};
+
+}  // namespace
+
+// Verify that an uninitialized UUID is equal
+// To the BT SIG Base UUID.
+TEST(UUIDTest, DefaultUUID) {
+  UUID uuid;
+  ASSERT_TRUE(uuid.is_valid());
+  ASSERT_TRUE(uuid.GetFullBigEndian() == kBtSigBaseUUID);
+}
+
+// Verify that we initialize a 16-bit UUID in a
+// way consistent with how we read it.
+TEST(UUIDTest, Init16Bit) {
+  auto my_uuid_16 = kBtSigBaseUUID;
+  my_uuid_16[2] = 0xde;
+  my_uuid_16[3] = 0xad;
+  UUID uuid(UUID::UUID16Bit({{ 0xde, 0xad }}));
+  ASSERT_TRUE(uuid.is_valid());
+  ASSERT_TRUE(uuid.GetFullBigEndian() == my_uuid_16);
+  ASSERT_TRUE(UUID::kNumBytes16 == uuid.GetShortestRepresentationSize());
+}
+
+// Verify that we initialize a 16-bit UUID in a
+// way consistent with how we read it.
+TEST(UUIDTest, Init16BitString) {
+  auto my_uuid_16 = kBtSigBaseUUID;
+  my_uuid_16[2] = 0xde;
+  my_uuid_16[3] = 0xad;
+  UUID uuid("dead");
+  ASSERT_TRUE(uuid.is_valid());
+  ASSERT_TRUE(uuid.GetFullBigEndian() == my_uuid_16);
+  ASSERT_TRUE(UUID::kNumBytes16 == uuid.GetShortestRepresentationSize());
+
+  uuid = UUID("0xdead");
+  ASSERT_TRUE(uuid.is_valid());
+  ASSERT_TRUE(uuid.GetFullBigEndian() == my_uuid_16);
+  ASSERT_TRUE(UUID::kNumBytes16 == uuid.GetShortestRepresentationSize());
+}
+
+
+// Verify that we initialize a 32-bit UUID in a
+// way consistent with how we read it.
+TEST(UUIDTest, Init32Bit) {
+  auto my_uuid_32 = kBtSigBaseUUID;
+  my_uuid_32[0] = 0xde;
+  my_uuid_32[1] = 0xad;
+  my_uuid_32[2] = 0xbe;
+  my_uuid_32[3] = 0xef;
+  UUID uuid(UUID::UUID32Bit({{ 0xde, 0xad, 0xbe, 0xef }}));
+  ASSERT_TRUE(uuid.is_valid());
+  ASSERT_TRUE(uuid.GetFullBigEndian() == my_uuid_32);
+  ASSERT_TRUE(UUID::kNumBytes32 == uuid.GetShortestRepresentationSize());
+}
+
+// Verify correct reading of a 32-bit UUID initialized from string.
+TEST(UUIDTest, Init32BitString) {
+  auto my_uuid_32 = kBtSigBaseUUID;
+  my_uuid_32[0] = 0xde;
+  my_uuid_32[1] = 0xad;
+  my_uuid_32[2] = 0xbe;
+  my_uuid_32[3] = 0xef;
+  UUID uuid("deadbeef");
+  ASSERT_TRUE(uuid.is_valid());
+  ASSERT_TRUE(uuid.GetFullBigEndian() == my_uuid_32);
+  ASSERT_TRUE(UUID::kNumBytes32 == uuid.GetShortestRepresentationSize());
+}
+
+// Verify that we initialize a 128-bit UUID in a
+// way consistent with how we read it.
+TEST(UUIDTest, Init128Bit) {
+  auto my_uuid_128 = kBtSigBaseUUID;
+  for (int i = 0; i < static_cast<int>(my_uuid_128.size()); ++i) {
+    my_uuid_128[i] = i;
+  }
+
+  UUID uuid(my_uuid_128);
+  ASSERT_TRUE(uuid.is_valid());
+  ASSERT_TRUE(uuid.GetFullBigEndian() == my_uuid_128);
+  ASSERT_TRUE(UUID::kNumBytes128 == uuid.GetShortestRepresentationSize());
+}
+
+// Verify that we initialize a 128-bit UUID in a
+// way consistent with how we read it as LE.
+TEST(UUIDTest, Init128BitLittleEndian) {
+  auto my_uuid_128 = kBtSigBaseUUID;
+  for (int i = 0; i < static_cast<int>(my_uuid_128.size()); ++i) {
+    my_uuid_128[i] = i;
+  }
+
+  UUID uuid(my_uuid_128);
+  std::reverse(my_uuid_128.begin(), my_uuid_128.end());
+  ASSERT_TRUE(uuid.is_valid());
+  ASSERT_TRUE(uuid.GetFullLittleEndian() == my_uuid_128);
+}
+
+// Verify that we initialize a 128-bit UUID in a
+// way consistent with how we read it.
+TEST(UUIDTest, Init128BitString) {
+  UUID::UUID128Bit my_uuid{
+    { 7, 1, 6, 8, 14, 255, 16, 2, 3, 4, 5, 6, 7, 8, 9, 10 }
+  };
+  std::string my_uuid_string("07010608-0eff-1002-0304-05060708090a");
+
+  UUID uuid0(my_uuid);
+  UUID uuid1(my_uuid_string);
+
+  ASSERT_TRUE(uuid0.is_valid());
+  ASSERT_TRUE(uuid1.is_valid());
+  ASSERT_TRUE(uuid0 == uuid1);
+  ASSERT_TRUE(UUID::kNumBytes128 == uuid0.GetShortestRepresentationSize());
+}
+
+TEST(UUIDTest, InitInvalid) {
+  UUID uuid0("000102030405060708090A0B0C0D0E0F");
+  ASSERT_FALSE(uuid0.is_valid());
+
+  UUID uuid1("1*90");
+  ASSERT_FALSE(uuid1.is_valid());
+
+  UUID uuid2("109g");
+  ASSERT_FALSE(uuid1.is_valid());
+}
+
+TEST(UUIDTest, ToString) {
+  const UUID::UUID16Bit data{{ 0x18, 0x0d }};
+  UUID uuid(data);
+  std::string uuid_string = uuid.ToString();
+  EXPECT_EQ("0000180d-0000-1000-8000-00805f9b34fb", uuid_string);
+}
diff --git a/rtkbt/code/bt/stack/Android.mk b/rtkbt/code/bt/stack/Android.mk
new file mode 100755
index 0000000..e0bcf9a
--- /dev/null
+++ b/rtkbt/code/bt/stack/Android.mk
@@ -0,0 +1,160 @@
+LOCAL_PATH:= $(call my-dir)
+
+# Bluetooth stack static library for target
+# ========================================================
+include $(CLEAR_VARS)
+
+LOCAL_C_INCLUDES:= \
+                   $(LOCAL_PATH)/include \
+                   $(LOCAL_PATH)/avct \
+                   $(LOCAL_PATH)/btm \
+                   $(LOCAL_PATH)/avrc \
+                   $(LOCAL_PATH)/l2cap \
+                   $(LOCAL_PATH)/avdt \
+                   $(LOCAL_PATH)/gatt \
+                   $(LOCAL_PATH)/gap \
+                   $(LOCAL_PATH)/pan \
+                   $(LOCAL_PATH)/bnep \
+                   $(LOCAL_PATH)/hid \
+                   $(LOCAL_PATH)/sdp \
+                   $(LOCAL_PATH)/smp \
+                   $(LOCAL_PATH)/srvc \
+                   $(LOCAL_PATH)/../btcore/include \
+                   $(LOCAL_PATH)/../vnd/include \
+                   $(LOCAL_PATH)/../vnd/ble \
+                   $(LOCAL_PATH)/../btif/include \
+                   $(LOCAL_PATH)/../hci/include \
+                   $(LOCAL_PATH)/../include \
+                   $(LOCAL_PATH)/../udrv/include \
+                   $(LOCAL_PATH)/../rpc/include \
+                   $(LOCAL_PATH)/../hcis \
+                   $(LOCAL_PATH)/../ctrlr/include \
+                   $(LOCAL_PATH)/../bta/include \
+                   $(LOCAL_PATH)/../bta/sys \
+                   $(LOCAL_PATH)/../utils/include \
+                   $(LOCAL_PATH)/../ \
+                   $(bluetooth_C_INCLUDES)
+
+LOCAL_SRC_FILES:= \
+    ./a2dp/a2d_api.c \
+    ./a2dp/a2d_sbc.c \
+    ./avrc/avrc_api.c \
+    ./avrc/avrc_sdp.c \
+    ./avrc/avrc_opt.c \
+    ./avrc/avrc_bld_tg.c \
+    ./avrc/avrc_bld_ct.c \
+    ./avrc/avrc_pars_tg.c \
+    ./avrc/avrc_pars_ct.c \
+    ./avrc/avrc_utils.c \
+    ./hid/hidh_api.c \
+    ./hid/hidh_conn.c \
+    ./bnep/bnep_main.c \
+    ./bnep/bnep_utils.c \
+    ./bnep/bnep_api.c \
+    ./hcic/hciblecmds.c \
+    ./hcic/hcicmds.c \
+    ./btm/btm_ble.c \
+    ./btm/btm_sec.c \
+    ./btm/btm_inq.c \
+    ./btm/btm_ble_addr.c \
+    ./btm/btm_ble_bgconn.c \
+    ./btm/btm_main.c \
+    ./btm/btm_dev.c \
+    ./btm/btm_ble_gap.c \
+    ./btm/btm_ble_adv_filter.c \
+    ./btm/btm_ble_multi_adv.c \
+    ./btm/btm_ble_batchscan.c \
+    ./btm/btm_ble_cont_energy.c \
+    ./btm/btm_ble_privacy.c \
+    ./btm/btm_acl.c \
+    ./btm/btm_sco.c \
+    ./btm/btm_pm.c \
+    ./btm/btm_devctl.c \
+    ./rfcomm/rfc_utils.c \
+    ./rfcomm/port_rfc.c \
+    ./rfcomm/rfc_l2cap_if.c \
+    ./rfcomm/rfc_mx_fsm.c \
+    ./rfcomm/port_utils.c \
+    ./rfcomm/rfc_port_fsm.c \
+    ./rfcomm/rfc_port_if.c \
+    ./rfcomm/port_api.c \
+    ./rfcomm/rfc_ts_frames.c \
+    ./mcap/mca_dact.c \
+    ./mcap/mca_dsm.c \
+    ./mcap/mca_l2c.c \
+    ./mcap/mca_main.c \
+    ./mcap/mca_csm.c \
+    ./mcap/mca_cact.c \
+    ./mcap/mca_api.c \
+    ./gatt/gatt_sr.c \
+    ./gatt/gatt_cl.c \
+    ./gatt/gatt_api.c \
+    ./gatt/gatt_auth.c \
+    ./gatt/gatt_utils.c \
+    ./gatt/gatt_main.c \
+    ./gatt/att_protocol.c \
+    ./gatt/gatt_attr.c \
+    ./gatt/gatt_db.c \
+    ./avct/avct_api.c \
+    ./avct/avct_l2c.c \
+    ./avct/avct_lcb.c \
+    ./avct/avct_ccb.c \
+    ./avct/avct_lcb_act.c \
+    ./smp/smp_main.c \
+    ./smp/smp_l2c.c \
+    ./smp/smp_cmac.c \
+    ./smp/smp_utils.c \
+    ./smp/smp_act.c \
+    ./smp/smp_keys.c \
+    ./smp/smp_api.c \
+    ./smp/aes.c \
+    ./smp/smp_br_main.c\
+    ./smp/p_256_curvepara.c \
+    ./smp/p_256_ecc_pp.c \
+    ./smp/p_256_multprecision.c \
+    ./avdt/avdt_ccb.c \
+    ./avdt/avdt_scb_act.c \
+    ./avdt/avdt_msg.c \
+    ./avdt/avdt_ccb_act.c \
+    ./avdt/avdt_api.c \
+    ./avdt/avdt_scb.c \
+    ./avdt/avdt_ad.c \
+    ./avdt/avdt_l2c.c \
+    ./sdp/sdp_server.c \
+    ./sdp/sdp_main.c \
+    ./sdp/sdp_db.c \
+    ./sdp/sdp_utils.c \
+    ./sdp/sdp_api.c \
+    ./sdp/sdp_discovery.c \
+    ./pan/pan_main.c \
+    ./srvc/srvc_battery.c \
+    ./srvc/srvc_dis.c \
+    ./srvc/srvc_eng.c \
+    ./pan/pan_api.c \
+    ./pan/pan_utils.c \
+    ./btu/btu_hcif.c \
+    ./btu/btu_init.c \
+    ./btu/btu_task.c \
+    ./l2cap/l2c_fcr.c \
+    ./l2cap/l2c_ucd.c \
+    ./l2cap/l2c_main.c \
+    ./l2cap/l2c_api.c \
+    ./l2cap/l2c_utils.c \
+    ./l2cap/l2c_csm.c \
+    ./l2cap/l2c_link.c \
+    ./l2cap/l2c_ble.c \
+    ./l2cap/l2cap_client.c \
+    ./gap/gap_api.c \
+    ./gap/gap_ble.c \
+    ./gap/gap_conn.c \
+    ./gap/gap_utils.c
+
+LOCAL_MODULE := libbt-stack-rtk
+LOCAL_STATIC_LIBRARIES := libbt-hci-rtk
+LOCAL_SHARED_LIBRARIES := libcutils
+
+LOCAL_CFLAGS += $(bluetooth_CFLAGS)
+LOCAL_CONLYFLAGS += $(bluetooth_CONLYFLAGS)
+LOCAL_CPPFLAGS += $(bluetooth_CPPFLAGS)
+
+include $(BUILD_STATIC_LIBRARY)
diff --git a/rtkbt/code/bt/stack/BUILD.gn b/rtkbt/code/bt/stack/BUILD.gn
new file mode 100755
index 0000000..24afc93
--- /dev/null
+++ b/rtkbt/code/bt/stack/BUILD.gn
@@ -0,0 +1,167 @@
+#
+#  Copyright (C) 2015 Google, Inc.
+#
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at:
+#
+#  http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+#
+
+static_library("stack") {
+  sources = [
+    "a2dp/a2d_api.c",
+    "a2dp/a2d_sbc.c",
+    "avrc/avrc_api.c",
+    "avrc/avrc_sdp.c",
+    "avrc/avrc_opt.c",
+    "avrc/avrc_bld_tg.c",
+    "avrc/avrc_bld_ct.c",
+    "avrc/avrc_pars_tg.c",
+    "avrc/avrc_pars_ct.c",
+    "avrc/avrc_utils.c",
+    "hid/hidh_api.c",
+    "hid/hidh_conn.c",
+    "bnep/bnep_main.c",
+    "bnep/bnep_utils.c",
+    "bnep/bnep_api.c",
+    "hcic/hciblecmds.c",
+    "hcic/hcicmds.c",
+    "btm/btm_ble.c",
+    "btm/btm_sec.c",
+    "btm/btm_inq.c",
+    "btm/btm_ble_addr.c",
+    "btm/btm_ble_bgconn.c",
+    "btm/btm_main.c",
+    "btm/btm_dev.c",
+    "btm/btm_ble_gap.c",
+    "btm/btm_ble_adv_filter.c",
+    "btm/btm_ble_multi_adv.c",
+    "btm/btm_ble_batchscan.c",
+    "btm/btm_ble_cont_energy.c",
+    "btm/btm_ble_privacy.c",
+    "btm/btm_acl.c",
+    "btm/btm_sco.c",
+    "btm/btm_pm.c",
+    "btm/btm_devctl.c",
+    "rfcomm/rfc_utils.c",
+    "rfcomm/port_rfc.c",
+    "rfcomm/rfc_l2cap_if.c",
+    "rfcomm/rfc_mx_fsm.c",
+    "rfcomm/port_utils.c",
+    "rfcomm/rfc_port_fsm.c",
+    "rfcomm/rfc_port_if.c",
+    "rfcomm/port_api.c",
+    "rfcomm/rfc_ts_frames.c",
+    "mcap/mca_dact.c",
+    "mcap/mca_dsm.c",
+    "mcap/mca_l2c.c",
+    "mcap/mca_main.c",
+    "mcap/mca_csm.c",
+    "mcap/mca_cact.c",
+    "mcap/mca_api.c",
+    "gatt/gatt_sr.c",
+    "gatt/gatt_cl.c",
+    "gatt/gatt_api.c",
+    "gatt/gatt_auth.c",
+    "gatt/gatt_utils.c",
+    "gatt/gatt_main.c",
+    "gatt/att_protocol.c",
+    "gatt/gatt_attr.c",
+    "gatt/gatt_db.c",
+    "avct/avct_api.c",
+    "avct/avct_l2c.c",
+    "avct/avct_lcb.c",
+    "avct/avct_ccb.c",
+    "avct/avct_lcb_act.c",
+    "smp/smp_main.c",
+    "smp/smp_l2c.c",
+    "smp/smp_cmac.c",
+    "smp/smp_utils.c",
+    "smp/smp_act.c",
+    "smp/smp_keys.c",
+    "smp/smp_api.c",
+    "smp/aes.c",
+    "smp/smp_br_main.c",
+    "smp/p_256_curvepara.c",
+    "smp/p_256_ecc_pp.c",
+    "smp/p_256_multprecision.c",
+    "avdt/avdt_ccb.c",
+    "avdt/avdt_scb_act.c",
+    "avdt/avdt_msg.c",
+    "avdt/avdt_ccb_act.c",
+    "avdt/avdt_api.c",
+    "avdt/avdt_scb.c",
+    "avdt/avdt_ad.c",
+    "avdt/avdt_l2c.c",
+    "sdp/sdp_server.c",
+    "sdp/sdp_main.c",
+    "sdp/sdp_db.c",
+    "sdp/sdp_utils.c",
+    "sdp/sdp_api.c",
+    "sdp/sdp_discovery.c",
+    "pan/pan_main.c",
+    "srvc/srvc_battery.c",
+    "srvc/srvc_battery_int.h",
+    "srvc/srvc_dis.c",
+    "srvc/srvc_dis_int.h",
+    "srvc/srvc_eng.c",
+    "srvc/srvc_eng_int.h",
+    "pan/pan_api.c",
+    "pan/pan_utils.c",
+    "btu/btu_hcif.c",
+    "btu/btu_init.c",
+    "btu/btu_task.c",
+    "l2cap/l2c_fcr.c",
+    "l2cap/l2c_ucd.c",
+    "l2cap/l2c_main.c",
+    "l2cap/l2c_api.c",
+    "l2cap/l2c_utils.c",
+    "l2cap/l2c_csm.c",
+    "l2cap/l2c_link.c",
+    "l2cap/l2c_ble.c",
+    "l2cap/l2cap_client.c",
+    "gap/gap_api.c",
+    "gap/gap_ble.c",
+    "gap/gap_conn.c",
+    "gap/gap_utils.c",
+  ]
+
+  include_dirs = [
+    "include",
+    "avct",
+    "btm",
+    "avrc",
+    "l2cap",
+    "avdt",
+    "gatt",
+    "gap",
+    "pan",
+    "bnep",
+    "hid",
+    "sdp",
+    "smp",
+    "srvc",
+    "//osi/include",
+    "//btcore/include",
+    "//vnd/include",
+    "//vnd/ble",
+    "//btif/include",
+    "//hci/include",
+    "//include",
+    "//udrv/include",
+    "//rpc/include",
+    "//hcis",
+    "//ctrlr/include",
+    "//bta/include",
+    "//bta/sys",
+    "//utils/include",
+    "//",
+  ]
+}
diff --git a/rtkbt/code/bt/stack/a2dp/a2d_api.c b/rtkbt/code/bt/stack/a2dp/a2d_api.c
new file mode 100755
index 0000000..2f31d1b
--- /dev/null
+++ b/rtkbt/code/bt/stack/a2dp/a2d_api.c
@@ -0,0 +1,399 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2002-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  ommon API for the Advanced Audio Distribution Profile (A2DP)
+ *
+ ******************************************************************************/
+#include <string.h>
+#include "bt_target.h"
+#include "bt_common.h"
+#include "sdpdefs.h"
+#include "a2d_api.h"
+#include "a2d_int.h"
+#include "avdt_api.h"
+
+/*****************************************************************************
+**  Global data
+*****************************************************************************/
+#if A2D_DYNAMIC_MEMORY == FALSE
+tA2D_CB a2d_cb;
+#endif
+
+
+/******************************************************************************
+**
+** Function         a2d_sdp_cback
+**
+** Description      This is the SDP callback function used by A2D_FindService.
+**                  This function will be executed by SDP when the service
+**                  search is completed.  If the search is successful, it
+**                  finds the first record in the database that matches the
+**                  UUID of the search.  Then retrieves various parameters
+**                  from the record.  When it is finished it calls the
+**                  application callback function.
+**
+** Returns          Nothing.
+**
+******************************************************************************/
+static void a2d_sdp_cback(UINT16 status)
+{
+    tSDP_DISC_REC       *p_rec = NULL;
+    tSDP_DISC_ATTR      *p_attr;
+    BOOLEAN             found = FALSE;
+    tA2D_Service        a2d_svc;
+    tSDP_PROTOCOL_ELEM  elem;
+
+    A2D_TRACE_API("a2d_sdp_cback status: %d", status);
+
+    if (status == SDP_SUCCESS)
+    {
+        /* loop through all records we found */
+        do
+        {
+            /* get next record; if none found, we're done */
+            if ((p_rec = SDP_FindServiceInDb(a2d_cb.find.p_db,
+                            a2d_cb.find.service_uuid, p_rec)) == NULL)
+            {
+                break;
+            }
+            memset(&a2d_svc, 0, sizeof(tA2D_Service));
+
+            /* get service name */
+            if ((p_attr = SDP_FindAttributeInRec(p_rec,
+                            ATTR_ID_SERVICE_NAME)) != NULL)
+            {
+                a2d_svc.p_service_name = (char *) p_attr->attr_value.v.array;
+                a2d_svc.service_len    = SDP_DISC_ATTR_LEN(p_attr->attr_len_type);
+            }
+
+            /* get provider name */
+            if ((p_attr = SDP_FindAttributeInRec(p_rec,
+                            ATTR_ID_PROVIDER_NAME)) != NULL)
+            {
+                a2d_svc.p_provider_name = (char *) p_attr->attr_value.v.array;
+                a2d_svc.provider_len    = SDP_DISC_ATTR_LEN(p_attr->attr_len_type);
+            }
+
+            /* get supported features */
+            if ((p_attr = SDP_FindAttributeInRec(p_rec,
+                            ATTR_ID_SUPPORTED_FEATURES)) != NULL)
+            {
+                a2d_svc.features = p_attr->attr_value.v.u16;
+            }
+
+            /* get AVDTP version */
+            if (SDP_FindProtocolListElemInRec(p_rec, UUID_PROTOCOL_AVDTP, &elem))
+            {
+                a2d_svc.avdt_version = elem.params[0];
+                A2D_TRACE_DEBUG("avdt_version: 0x%x", a2d_svc.avdt_version);
+            }
+
+            /* we've got everything, we're done */
+            found = TRUE;
+            break;
+
+        } while (TRUE);
+    }
+
+    a2d_cb.find.service_uuid = 0;
+    osi_free_and_reset((void**)&a2d_cb.find.p_db);
+    /* return info from sdp record in app callback function */
+    if (a2d_cb.find.p_cback != NULL)
+    {
+        (*a2d_cb.find.p_cback)(found, &a2d_svc);
+    }
+
+    return;
+}
+
+/*******************************************************************************
+**
+** Function         a2d_set_avdt_sdp_ver
+**
+** Description      This function allows the script wrapper to change the
+**                  avdt version of a2dp.
+**
+** Returns          None
+**
+*******************************************************************************/
+void a2d_set_avdt_sdp_ver (UINT16 avdt_sdp_ver)
+{
+    a2d_cb.avdt_sdp_ver = avdt_sdp_ver;
+}
+
+/******************************************************************************
+**
+** Function         A2D_AddRecord
+**
+** Description      This function is called by a server application to add
+**                  SRC or SNK information to an SDP record.  Prior to
+**                  calling this function the application must call
+**                  SDP_CreateRecord() to create an SDP record.
+**
+**                  Input Parameters:
+**                      service_uuid:  Indicates SRC or SNK.
+**
+**                      p_service_name:  Pointer to a null-terminated character
+**                      string containing the service name.
+**
+**                      p_provider_name:  Pointer to a null-terminated character
+**                      string containing the provider name.
+**
+**                      features:  Profile supported features.
+**
+**                      sdp_handle:  SDP handle returned by SDP_CreateRecord().
+**
+**                  Output Parameters:
+**                      None.
+**
+** Returns          A2D_SUCCESS if function execution succeeded,
+**                  A2D_INVALID_PARAMS if bad parameters are given.
+**                  A2D_FAIL if function execution failed.
+**
+******************************************************************************/
+tA2D_STATUS A2D_AddRecord(UINT16 service_uuid, char *p_service_name, char *p_provider_name,
+        UINT16 features, UINT32 sdp_handle)
+{
+    UINT16      browse_list[1];
+    BOOLEAN     result = TRUE;
+    UINT8       temp[8];
+    UINT8       *p;
+    tSDP_PROTOCOL_ELEM  proto_list [A2D_NUM_PROTO_ELEMS];
+
+    A2D_TRACE_API("A2D_AddRecord uuid: %x", service_uuid);
+
+    if( (sdp_handle == 0) ||
+        (service_uuid != UUID_SERVCLASS_AUDIO_SOURCE && service_uuid != UUID_SERVCLASS_AUDIO_SINK) )
+        return A2D_INVALID_PARAMS;
+
+    /* add service class id list */
+    result &= SDP_AddServiceClassIdList(sdp_handle, 1, &service_uuid);
+
+    memset((void*) proto_list, 0 , A2D_NUM_PROTO_ELEMS*sizeof(tSDP_PROTOCOL_ELEM));
+
+    /* add protocol descriptor list   */
+    proto_list[0].protocol_uuid = UUID_PROTOCOL_L2CAP;
+    proto_list[0].num_params = 1;
+    proto_list[0].params[0] = AVDT_PSM;
+    proto_list[1].protocol_uuid = UUID_PROTOCOL_AVDTP;
+    proto_list[1].num_params = 1;
+    proto_list[1].params[0] = a2d_cb.avdt_sdp_ver;
+
+    result &= SDP_AddProtocolList(sdp_handle, A2D_NUM_PROTO_ELEMS, proto_list);
+
+    /* add profile descriptor list   */
+    result &= SDP_AddProfileDescriptorList(sdp_handle, UUID_SERVCLASS_ADV_AUDIO_DISTRIBUTION, A2D_VERSION);
+
+    /* add supported feature */
+    if (features != 0)
+    {
+        p = temp;
+        UINT16_TO_BE_STREAM(p, features);
+        result &= SDP_AddAttribute(sdp_handle, ATTR_ID_SUPPORTED_FEATURES, UINT_DESC_TYPE,
+                  (UINT32)2, (UINT8*)temp);
+    }
+
+    /* add provider name */
+    if (p_provider_name != NULL)
+    {
+        result &= SDP_AddAttribute(sdp_handle, ATTR_ID_PROVIDER_NAME, TEXT_STR_DESC_TYPE,
+                    (UINT32)(strlen(p_provider_name)+1), (UINT8 *) p_provider_name);
+    }
+
+    /* add service name */
+    if (p_service_name != NULL)
+    {
+        result &= SDP_AddAttribute(sdp_handle, ATTR_ID_SERVICE_NAME, TEXT_STR_DESC_TYPE,
+                    (UINT32)(strlen(p_service_name)+1), (UINT8 *) p_service_name);
+    }
+
+    /* add browse group list */
+    browse_list[0] = UUID_SERVCLASS_PUBLIC_BROWSE_GROUP;
+    result &= SDP_AddUuidSequence(sdp_handle, ATTR_ID_BROWSE_GROUP_LIST, 1, browse_list);
+
+
+    return (result ? A2D_SUCCESS : A2D_FAIL);
+}
+
+/******************************************************************************
+**
+** Function         A2D_FindService
+**
+** Description      This function is called by a client application to
+**                  perform service discovery and retrieve SRC or SNK SDP
+**                  record information from a server.  Information is
+**                  returned for the first service record found on the
+**                  server that matches the service UUID.  The callback
+**                  function will be executed when service discovery is
+**                  complete.  There can only be one outstanding call to
+**                  A2D_FindService() at a time; the application must wait
+**                  for the callback before it makes another call to
+**                  the function.
+**
+**                  Input Parameters:
+**                      service_uuid:  Indicates SRC or SNK.
+**
+**                      bd_addr:  BD address of the peer device.
+**
+**                      p_db:  Pointer to the information to initialize
+**                             the discovery database.
+**
+**                      p_cback:  Pointer to the A2D_FindService()
+**                      callback function.
+**
+**                  Output Parameters:
+**                      None.
+**
+** Returns          A2D_SUCCESS if function execution succeeded,
+**                  A2D_INVALID_PARAMS if bad parameters are given.
+**                  A2D_BUSY if discovery is already in progress.
+**                  A2D_FAIL if function execution failed.
+**
+******************************************************************************/
+tA2D_STATUS A2D_FindService(UINT16 service_uuid, BD_ADDR bd_addr,
+                        tA2D_SDP_DB_PARAMS *p_db, tA2D_FIND_CBACK *p_cback)
+{
+    tSDP_UUID   uuid_list;
+    BOOLEAN     result = TRUE;
+    UINT16      a2d_attr_list[] = {ATTR_ID_SERVICE_CLASS_ID_LIST, /* update A2D_NUM_ATTR, if changed */
+                                   ATTR_ID_BT_PROFILE_DESC_LIST,
+                                   ATTR_ID_SUPPORTED_FEATURES,
+                                   ATTR_ID_SERVICE_NAME,
+                                   ATTR_ID_PROTOCOL_DESC_LIST,
+                                   ATTR_ID_PROVIDER_NAME};
+
+    A2D_TRACE_API("A2D_FindService uuid: %x", service_uuid);
+    if( (service_uuid != UUID_SERVCLASS_AUDIO_SOURCE && service_uuid != UUID_SERVCLASS_AUDIO_SINK) ||
+        p_db == NULL || p_cback == NULL)
+        return A2D_INVALID_PARAMS;
+
+    if( a2d_cb.find.service_uuid == UUID_SERVCLASS_AUDIO_SOURCE ||
+        a2d_cb.find.service_uuid == UUID_SERVCLASS_AUDIO_SINK)
+        return A2D_BUSY;
+
+    /* set up discovery database */
+    uuid_list.len = LEN_UUID_16;
+    uuid_list.uu.uuid16 = service_uuid;
+
+    if(p_db->p_attrs == NULL || p_db->num_attr == 0)
+    {
+        p_db->p_attrs  = a2d_attr_list;
+        p_db->num_attr = A2D_NUM_ATTR;
+    }
+
+    if(a2d_cb.find.p_db == NULL)
+        a2d_cb.find.p_db = (tSDP_DISCOVERY_DB*)osi_malloc(p_db->db_len);
+
+    result = SDP_InitDiscoveryDb(a2d_cb.find.p_db, p_db->db_len, 1, &uuid_list, p_db->num_attr,
+                                 p_db->p_attrs);
+
+    if (result == TRUE)
+    {
+        /* store service_uuid */
+        a2d_cb.find.service_uuid = service_uuid;
+        a2d_cb.find.p_cback = p_cback;
+
+        /* perform service search */
+        result = SDP_ServiceSearchAttributeRequest(bd_addr, a2d_cb.find.p_db, a2d_sdp_cback);
+        if(FALSE == result)
+        {
+            a2d_cb.find.service_uuid = 0;
+        }
+    }
+
+    return (result ? A2D_SUCCESS : A2D_FAIL);
+}
+
+/******************************************************************************
+**
+** Function         A2D_SetTraceLevel
+**
+** Description      Sets the trace level for A2D. If 0xff is passed, the
+**                  current trace level is returned.
+**
+**                  Input Parameters:
+**                      new_level:  The level to set the A2D tracing to:
+**                      0xff-returns the current setting.
+**                      0-turns off tracing.
+**                      >= 1-Errors.
+**                      >= 2-Warnings.
+**                      >= 3-APIs.
+**                      >= 4-Events.
+**                      >= 5-Debug.
+**
+** Returns          The new trace level or current trace level if
+**                  the input parameter is 0xff.
+**
+******************************************************************************/
+UINT8 A2D_SetTraceLevel (UINT8 new_level)
+{
+    if (new_level != 0xFF)
+        a2d_cb.trace_level = new_level;
+
+    return (a2d_cb.trace_level);
+}
+
+/******************************************************************************
+** Function         A2D_BitsSet
+**
+** Description      Check the given num for the number of bits set
+** Returns          A2D_SET_ONE_BIT, if one and only one bit is set
+**                  A2D_SET_ZERO_BIT, if all bits clear
+**                  A2D_SET_MULTL_BIT, if multiple bits are set
+******************************************************************************/
+UINT8 A2D_BitsSet(UINT8 num)
+{
+    UINT8   count;
+    BOOLEAN res;
+    if(num == 0)
+        res = A2D_SET_ZERO_BIT;
+    else
+    {
+        count = (num & (num - 1));
+        res = ((count==0)?A2D_SET_ONE_BIT:A2D_SET_MULTL_BIT);
+    }
+    return res;
+}
+
+/*******************************************************************************
+**
+** Function         A2D_Init
+**
+** Description      This function is called to initialize the control block
+**                  for this layer.  It must be called before accessing any
+**                  other API functions for this layer.  It is typically called
+**                  once during the start up of the stack.
+**
+** Returns          void
+**
+*******************************************************************************/
+void A2D_Init(void)
+{
+    memset(&a2d_cb, 0, sizeof(tA2D_CB));
+
+    a2d_cb.avdt_sdp_ver = AVDT_VERSION;
+
+#if defined(A2D_INITIAL_TRACE_LEVEL)
+    a2d_cb.trace_level  = A2D_INITIAL_TRACE_LEVEL;
+#else
+    a2d_cb.trace_level  = BT_TRACE_LEVEL_NONE;
+#endif
+}
+
diff --git a/rtkbt/code/bt/stack/a2dp/a2d_int.h b/rtkbt/code/bt/stack/a2dp/a2d_int.h
new file mode 100755
index 0000000..d4bb4c2
--- /dev/null
+++ b/rtkbt/code/bt/stack/a2dp/a2d_int.h
@@ -0,0 +1,82 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2002-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  2DP internal header file
+ *
+ ******************************************************************************/
+#ifndef A2D_INT_H
+#define A2D_INT_H
+
+#include "a2d_api.h"
+
+/*****************************************************************************
+**  Constants
+*****************************************************************************/
+#define A2D_VERSION             0x0102
+
+/* Number of attributes in A2D SDP record. */
+#define A2D_NUM_ATTR            6
+
+/* Number of protocol elements in protocol element list. */
+#define A2D_NUM_PROTO_ELEMS     2
+
+/*****************************************************************************
+**  Type definitions
+*****************************************************************************/
+
+/* Control block used by A2D_FindService(). */
+typedef struct
+{
+    tA2D_FIND_CBACK     *p_cback;       /* pointer to application callback */
+    tSDP_DISCOVERY_DB   *p_db;          /* pointer to discovery database */
+    UINT16              service_uuid;   /* service UUID of search */
+} tA2D_FIND_CB;
+
+typedef struct
+{
+    tA2D_FIND_CB    find;   /* find service control block */
+    UINT8           trace_level;
+    UINT16          avdt_sdp_ver;   /* AVDTP version */
+} tA2D_CB;
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+/******************************************************************************
+** Main Control Block
+*******************************************************************************/
+#if A2D_DYNAMIC_MEMORY == FALSE
+extern tA2D_CB  a2d_cb;
+#else
+extern tA2D_CB *a2d_cb_ptr;
+#define a2d_cb (*a2d_cb_ptr)
+#endif
+
+/* Used only for conformance testing */
+extern void a2d_set_avdt_sdp_ver (UINT16 avdt_sdp_ver);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* A2D_INT_H */
diff --git a/rtkbt/code/bt/stack/a2dp/a2d_sbc.c b/rtkbt/code/bt/stack/a2dp/a2d_sbc.c
new file mode 100755
index 0000000..93e1850
--- /dev/null
+++ b/rtkbt/code/bt/stack/a2dp/a2d_sbc.c
@@ -0,0 +1,226 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2002-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  Utility functions to help build and parse SBC Codec Information Element
+ *  and Media Payload.
+ *
+ ******************************************************************************/
+
+#include "bt_target.h"
+
+#include <string.h>
+#include "a2d_api.h"
+#include "a2d_int.h"
+#include "a2d_sbc.h"
+#include "bt_utils.h"
+
+/******************************************************************************
+**
+** Function         A2D_BldSbcInfo
+**
+** Description      This function is called by an application to build
+**                  the SBC Media Codec Capabilities byte sequence
+**                  beginning from the LOSC octet.
+**                  Input Parameters:
+**                      media_type:  Indicates Audio, or Multimedia.
+**
+**                      p_ie:  The SBC Codec Information Element information.
+**
+**                  Output Parameters:
+**                      p_result:  the resulting codec info byte sequence.
+**
+** Returns          A2D_SUCCESS if function execution succeeded.
+**                  Error status code, otherwise.
+******************************************************************************/
+tA2D_STATUS A2D_BldSbcInfo(UINT8 media_type, tA2D_SBC_CIE *p_ie, UINT8 *p_result)
+{
+    tA2D_STATUS status;
+
+    if( p_ie == NULL || p_result == NULL ||
+        (p_ie->samp_freq & ~A2D_SBC_IE_SAMP_FREQ_MSK) ||
+        (p_ie->ch_mode & ~A2D_SBC_IE_CH_MD_MSK) ||
+        (p_ie->block_len & ~A2D_SBC_IE_BLOCKS_MSK) ||
+        (p_ie->num_subbands & ~A2D_SBC_IE_SUBBAND_MSK) ||
+        (p_ie->alloc_mthd & ~A2D_SBC_IE_ALLOC_MD_MSK) ||
+        (p_ie->max_bitpool < p_ie->min_bitpool) ||
+        (p_ie->max_bitpool < A2D_SBC_IE_MIN_BITPOOL) ||
+        (p_ie->max_bitpool > A2D_SBC_IE_MAX_BITPOOL) ||
+        (p_ie->min_bitpool < A2D_SBC_IE_MIN_BITPOOL) ||
+        (p_ie->min_bitpool > A2D_SBC_IE_MAX_BITPOOL) )
+    {
+        /* if any unused bit is set */
+        status = A2D_INVALID_PARAMS;
+    }
+    else
+    {
+        status = A2D_SUCCESS;
+        *p_result++ = A2D_SBC_INFO_LEN;
+        *p_result++ = media_type;
+        *p_result++ = A2D_MEDIA_CT_SBC;
+
+        /* Media Codec Specific Information Element */
+        *p_result++ = p_ie->samp_freq | p_ie->ch_mode;
+
+        *p_result++ = p_ie->block_len | p_ie->num_subbands | p_ie->alloc_mthd;
+
+        *p_result++ = p_ie->min_bitpool;
+        *p_result   = p_ie->max_bitpool;
+    }
+    return status;
+}
+
+/******************************************************************************
+**
+** Function         A2D_ParsSbcInfo
+**
+** Description      This function is called by an application to parse
+**                  the SBC Media Codec Capabilities byte sequence
+**                  beginning from the LOSC octet.
+**                  Input Parameters:
+**                      p_info:  the byte sequence to parse.
+**
+**                      for_caps:  TRUE, if the byte sequence is for get capabilities response.
+**
+**                  Output Parameters:
+**                      p_ie:  The SBC Codec Information Element information.
+**
+** Returns          A2D_SUCCESS if function execution succeeded.
+**                  Error status code, otherwise.
+******************************************************************************/
+tA2D_STATUS A2D_ParsSbcInfo(tA2D_SBC_CIE *p_ie, const UINT8 *p_info,
+                            BOOLEAN for_caps)
+{
+    tA2D_STATUS status = A2D_SUCCESS;
+    UINT8 losc;
+
+    if (p_ie == NULL || p_info == NULL)
+        return A2D_INVALID_PARAMS;
+
+    losc = *p_info;
+    p_info += 2;
+
+    /* If the function is called for the wrong Media Type or Media Codec Type */
+    if (losc != A2D_SBC_INFO_LEN || *p_info != A2D_MEDIA_CT_SBC)
+        return A2D_WRONG_CODEC;
+
+    p_info++;
+    p_ie->samp_freq = *p_info & A2D_SBC_IE_SAMP_FREQ_MSK;
+    p_ie->ch_mode   = *p_info & A2D_SBC_IE_CH_MD_MSK;
+    p_info++;
+    p_ie->block_len     = *p_info & A2D_SBC_IE_BLOCKS_MSK;
+    p_ie->num_subbands  = *p_info & A2D_SBC_IE_SUBBAND_MSK;
+    p_ie->alloc_mthd    = *p_info & A2D_SBC_IE_ALLOC_MD_MSK;
+    p_info++;
+    p_ie->min_bitpool = *p_info++;
+    p_ie->max_bitpool = *p_info;
+    if (p_ie->min_bitpool < A2D_SBC_IE_MIN_BITPOOL || p_ie->min_bitpool > A2D_SBC_IE_MAX_BITPOOL )
+        status = A2D_BAD_MIN_BITPOOL;
+
+    if (p_ie->max_bitpool < A2D_SBC_IE_MIN_BITPOOL || p_ie->max_bitpool > A2D_SBC_IE_MAX_BITPOOL ||
+         p_ie->max_bitpool < p_ie->min_bitpool)
+        status = A2D_BAD_MAX_BITPOOL;
+
+    if (for_caps != FALSE)
+        return status;
+
+    if (A2D_BitsSet(p_ie->samp_freq) != A2D_SET_ONE_BIT)
+        status = A2D_BAD_SAMP_FREQ;
+    if (A2D_BitsSet(p_ie->ch_mode) != A2D_SET_ONE_BIT)
+        status = A2D_BAD_CH_MODE;
+    if (A2D_BitsSet(p_ie->block_len) != A2D_SET_ONE_BIT)
+        status = A2D_BAD_BLOCK_LEN;
+    if (A2D_BitsSet(p_ie->num_subbands) != A2D_SET_ONE_BIT)
+        status = A2D_BAD_SUBBANDS;
+    if (A2D_BitsSet(p_ie->alloc_mthd) != A2D_SET_ONE_BIT)
+        status = A2D_BAD_ALLOC_MTHD;
+
+    return status;
+}
+
+/******************************************************************************
+**
+** Function         A2D_BldSbcMplHdr
+**
+** Description      This function is called by an application to parse
+**                  the SBC Media Payload header.
+**                  Input Parameters:
+**                      frag:  1, if fragmented. 0, otherwise.
+**
+**                      start:  1, if the starting packet of a fragmented frame.
+**
+**                      last:  1, if the last packet of a fragmented frame.
+**
+**                      num:  If frag is 1, this is the number of remaining fragments
+**                            (including this fragment) of this frame.
+**                            If frag is 0, this is the number of frames in this packet.
+**
+**                  Output Parameters:
+**                      p_dst:  the resulting media payload header byte sequence.
+**
+** Returns          void.
+******************************************************************************/
+void A2D_BldSbcMplHdr(UINT8 *p_dst, BOOLEAN frag, BOOLEAN start, BOOLEAN last, UINT8 num)
+{
+    if(p_dst)
+    {
+        *p_dst  = 0;
+        if(frag)
+            *p_dst  |= A2D_SBC_HDR_F_MSK;
+        if(start)
+            *p_dst  |= A2D_SBC_HDR_S_MSK;
+        if(last)
+            *p_dst  |= A2D_SBC_HDR_L_MSK;
+        *p_dst  |= (A2D_SBC_HDR_NUM_MSK & num);
+    }
+}
+
+/******************************************************************************
+**
+** Function         A2D_ParsSbcMplHdr
+**
+** Description      This function is called by an application to parse
+**                  the SBC Media Payload header.
+**                  Input Parameters:
+**                      p_src:  the byte sequence to parse..
+**
+**                  Output Parameters:
+**                      frag:  1, if fragmented. 0, otherwise.
+**
+**                      start:  1, if the starting packet of a fragmented frame.
+**
+**                      last:  1, if the last packet of a fragmented frame.
+**
+**                      num:  If frag is 1, this is the number of remaining fragments
+**                            (including this fragment) of this frame.
+**                            If frag is 0, this is the number of frames in this packet.
+**
+** Returns          void.
+******************************************************************************/
+void A2D_ParsSbcMplHdr(UINT8 *p_src, BOOLEAN *p_frag, BOOLEAN *p_start, BOOLEAN *p_last, UINT8 *p_num)
+{
+    if(p_src && p_frag && p_start && p_last && p_num)
+    {
+        *p_frag = (*p_src & A2D_SBC_HDR_F_MSK) ? TRUE: FALSE;
+        *p_start= (*p_src & A2D_SBC_HDR_S_MSK) ? TRUE: FALSE;
+        *p_last = (*p_src & A2D_SBC_HDR_L_MSK) ? TRUE: FALSE;
+        *p_num  = (*p_src & A2D_SBC_HDR_NUM_MSK);
+    }
+}
+
diff --git a/rtkbt/code/bt/stack/avct/avct_api.c b/rtkbt/code/bt/stack/avct/avct_api.c
new file mode 100755
index 0000000..60647a5
--- /dev/null
+++ b/rtkbt/code/bt/stack/avct/avct_api.c
@@ -0,0 +1,473 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This module contains API of the audio/video control transport protocol.
+ *
+ ******************************************************************************/
+
+#include <string.h>
+#include "bt_types.h"
+#include "bt_target.h"
+#include "bt_utils.h"
+#include "bt_common.h"
+#include "l2c_api.h"
+#include "l2cdefs.h"
+#include "btm_api.h"
+#include "avct_api.h"
+#include "avct_int.h"
+
+/* Control block for AVCT */
+#if AVCT_DYNAMIC_MEMORY == FALSE
+tAVCT_CB avct_cb;
+#endif
+
+/*******************************************************************************
+**
+** Function         AVCT_Register
+**
+** Description      This is the system level registration function for the
+**                  AVCTP protocol.  This function initializes AVCTP and
+**                  prepares the protocol stack for its use.  This function
+**                  must be called once by the system or platform using AVCTP
+**                  before the other functions of the API an be used.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void AVCT_Register(UINT16 mtu, UINT16 mtu_br, UINT8 sec_mask)
+{
+    UNUSED(mtu_br);
+
+    AVCT_TRACE_API("AVCT_Register");
+
+    /* register PSM with L2CAP */
+    L2CA_Register(AVCT_PSM, (tL2CAP_APPL_INFO *) &avct_l2c_appl);
+
+    /* set security level */
+    BTM_SetSecurityLevel(TRUE, "", BTM_SEC_SERVICE_AVCTP, sec_mask, AVCT_PSM, 0, 0);
+    BTM_SetSecurityLevel(FALSE, "", BTM_SEC_SERVICE_AVCTP, sec_mask, AVCT_PSM, 0, 0);
+
+    /* initialize AVCTP data structures */
+    memset(&avct_cb, 0, sizeof(tAVCT_CB));
+
+#if (AVCT_BROWSE_INCLUDED == TRUE)
+    /* Include the browsing channel which uses eFCR */
+    L2CA_Register(AVCT_BR_PSM, (tL2CAP_APPL_INFO *) &avct_l2c_br_appl);
+
+    BTM_SetSecurityLevel(TRUE, "", BTM_SEC_SERVICE_AVCTP_BROWSE, sec_mask, AVCT_BR_PSM, 0, 0);
+    BTM_SetSecurityLevel(FALSE, "", BTM_SEC_SERVICE_AVCTP_BROWSE, sec_mask, AVCT_BR_PSM, 0, 0);
+
+    if (mtu_br < AVCT_MIN_BROWSE_MTU)
+        mtu_br = AVCT_MIN_BROWSE_MTU;
+    avct_cb.mtu_br = mtu_br;
+#endif
+
+#if defined(AVCT_INITIAL_TRACE_LEVEL)
+    avct_cb.trace_level = AVCT_INITIAL_TRACE_LEVEL;
+#else
+    avct_cb.trace_level = BT_TRACE_LEVEL_NONE;
+#endif
+
+    if (mtu < AVCT_MIN_CONTROL_MTU)
+        mtu = AVCT_MIN_CONTROL_MTU;
+    /* store mtu */
+    avct_cb.mtu = mtu;
+}
+
+/*******************************************************************************
+**
+** Function         AVCT_Deregister
+**
+** Description      This function is called to deregister use AVCTP protocol.
+**                  It is called when AVCTP is no longer being used by any
+**                  application in the system.  Before this function can be
+**                  called, all connections must be removed with
+**                  AVCT_RemoveConn().
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void AVCT_Deregister(void)
+{
+    AVCT_TRACE_API("AVCT_Deregister");
+
+    /* deregister PSM with L2CAP */
+    L2CA_Deregister(AVCT_PSM);
+}
+
+/*******************************************************************************
+**
+** Function         AVCT_CreateConn
+**
+** Description      Create an AVCTP connection.  There are two types of
+**                  connections, initiator and acceptor, as determined by
+**                  the p_cc->role parameter.  When this function is called to
+**                  create an initiator connection, an AVCTP connection to
+**                  the peer device is initiated if one does not already exist.
+**                  If an acceptor connection is created, the connection waits
+**                  passively for an incoming AVCTP connection from a peer device.
+**
+**
+** Returns          AVCT_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+UINT16 AVCT_CreateConn(UINT8 *p_handle, tAVCT_CC *p_cc, BD_ADDR peer_addr)
+{
+    UINT16      result = AVCT_SUCCESS;
+    tAVCT_CCB   *p_ccb;
+    tAVCT_LCB   *p_lcb;
+
+    AVCT_TRACE_API("AVCT_CreateConn: %d, control:%d", p_cc->role, p_cc->control);
+
+    /* Allocate ccb; if no ccbs, return failure */
+    if ((p_ccb = avct_ccb_alloc(p_cc)) == NULL)
+    {
+        result = AVCT_NO_RESOURCES;
+    }
+    else
+    {
+        /* get handle */
+        *p_handle = avct_ccb_to_idx(p_ccb);
+
+        /* if initiator connection */
+        if (p_cc->role == AVCT_INT)
+        {
+            /* find link; if none allocate a new one */
+            if ((p_lcb = avct_lcb_by_bd(peer_addr)) == NULL)
+            {
+                if ((p_lcb = avct_lcb_alloc(peer_addr)) == NULL)
+                {
+                    /* no link resources; free ccb as well */
+                    avct_ccb_dealloc(p_ccb, AVCT_NO_EVT, 0, NULL);
+                    result = AVCT_NO_RESOURCES;
+                }
+            }
+            /* check if PID already in use */
+            else if (avct_lcb_has_pid(p_lcb, p_cc->pid))
+            {
+                avct_ccb_dealloc(p_ccb, AVCT_NO_EVT, 0, NULL);
+                result = AVCT_PID_IN_USE;
+            }
+
+            if (result == AVCT_SUCCESS)
+            {
+                /* bind lcb to ccb */
+                p_ccb->p_lcb = p_lcb;
+                AVCT_TRACE_DEBUG("ch_state: %d", p_lcb->ch_state);
+                avct_lcb_event(p_lcb, AVCT_LCB_UL_BIND_EVT, (tAVCT_LCB_EVT *) &p_ccb);
+            }
+        }
+    }
+    return result;
+}
+
+/*******************************************************************************
+**
+** Function         AVCT_RemoveConn
+**
+** Description      Remove an AVCTP connection.  This function is called when
+**                  the application is no longer using a connection.  If this
+**                  is the last connection to a peer the L2CAP channel for AVCTP
+**                  will be closed.
+**
+**
+** Returns          AVCT_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+UINT16 AVCT_RemoveConn(UINT8 handle)
+{
+    UINT16              result = AVCT_SUCCESS;
+    tAVCT_CCB           *p_ccb;
+
+    AVCT_TRACE_API("AVCT_RemoveConn");
+
+    /* map handle to ccb */
+    if ((p_ccb = avct_ccb_by_idx(handle)) == NULL)
+    {
+        result = AVCT_BAD_HANDLE;
+    }
+    /* if connection not bound to lcb, dealloc */
+    else if (p_ccb->p_lcb == NULL)
+    {
+        avct_ccb_dealloc(p_ccb, AVCT_NO_EVT, 0, NULL);
+    }
+    /* send unbind event to lcb */
+    else
+    {
+        avct_lcb_event(p_ccb->p_lcb, AVCT_LCB_UL_UNBIND_EVT, (tAVCT_LCB_EVT *) &p_ccb);
+    }
+    return result;
+}
+
+/*******************************************************************************
+**
+** Function         AVCT_CreateBrowse
+**
+** Description      Create an AVCTP Browse channel.  There are two types of
+**                  connections, initiator and acceptor, as determined by
+**                  the role parameter.  When this function is called to
+**                  create an initiator connection, the Browse channel to
+**                  the peer device is initiated if one does not already exist.
+**                  If an acceptor connection is created, the connection waits
+**                  passively for an incoming AVCTP connection from a peer device.
+**
+**
+** Returns          AVCT_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+UINT16 AVCT_CreateBrowse (UINT8 handle, UINT8 role)
+{
+#if (AVCT_BROWSE_INCLUDED == TRUE)
+    UINT16      result = AVCT_SUCCESS;
+    tAVCT_CCB   *p_ccb;
+    tAVCT_BCB   *p_bcb;
+    int         index;
+
+    AVCT_TRACE_API("AVCT_CreateBrowse: %d", role);
+
+    /* map handle to ccb */
+    if ((p_ccb = avct_ccb_by_idx(handle)) == NULL)
+    {
+        return AVCT_BAD_HANDLE;
+    }
+    else
+    {
+        /* mark this CCB as supporting browsing channel */
+        if ((p_ccb->allocated & AVCT_ALOC_BCB) == 0)
+        {
+            p_ccb->allocated |= AVCT_ALOC_BCB;
+        }
+    }
+
+    /* if initiator connection */
+    if (role == AVCT_INT)
+    {
+        /* the link control block must exist before this function is called as INT. */
+        if ((p_ccb->p_lcb == NULL) || (p_ccb->p_lcb->allocated == 0))
+        {
+            result = AVCT_NOT_OPEN;
+        }
+        else
+        {
+            /* find link; if none allocate a new one */
+            index = p_ccb->p_lcb->allocated;
+            if (index > AVCT_NUM_LINKS)
+            {
+                result = AVCT_BAD_HANDLE;
+            }
+            else
+            {
+                p_bcb = &avct_cb.bcb[index - 1];
+                p_bcb->allocated = index;
+            }
+        }
+
+        if (result == AVCT_SUCCESS)
+        {
+            /* bind bcb to ccb */
+            p_ccb->p_bcb = p_bcb;
+            AVCT_TRACE_DEBUG("ch_state: %d", p_bcb->ch_state);
+            avct_bcb_event(p_bcb, AVCT_LCB_UL_BIND_EVT, (tAVCT_LCB_EVT *) &p_ccb);
+        }
+    }
+
+    return result;
+#else
+    UNUSED(handle);
+    UNUSED(role);
+    return AVCT_NO_RESOURCES;
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         AVCT_RemoveBrowse
+**
+** Description      Remove an AVCTP Browse channel.  This function is called when
+**                  the application is no longer using a connection.  If this
+**                  is the last connection to a peer the L2CAP channel for AVCTP
+**                  will be closed.
+**
+**
+** Returns          AVCT_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+UINT16 AVCT_RemoveBrowse (UINT8 handle)
+{
+#if (AVCT_BROWSE_INCLUDED == TRUE)
+    UINT16              result = AVCT_SUCCESS;
+    tAVCT_CCB           *p_ccb;
+
+    AVCT_TRACE_API("AVCT_RemoveBrowse");
+
+    /* map handle to ccb */
+    if ((p_ccb = avct_ccb_by_idx(handle)) == NULL)
+    {
+        result = AVCT_BAD_HANDLE;
+    }
+    else if (p_ccb->p_bcb != NULL)
+    /* send unbind event to bcb */
+    {
+        avct_bcb_event(p_ccb->p_bcb, AVCT_LCB_UL_UNBIND_EVT, (tAVCT_LCB_EVT *) &p_ccb);
+    }
+    return result;
+#else
+    UNUSED(handle);
+    return AVCT_NO_RESOURCES;
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         AVCT_GetBrowseMtu
+**
+** Description      Get the peer_mtu for the AVCTP Browse channel of the given
+**                  connection.
+**
+** Returns          the peer browsing channel MTU.
+**
+*******************************************************************************/
+UINT16 AVCT_GetBrowseMtu (UINT8 handle)
+{
+    UINT16  peer_mtu = AVCT_MIN_BROWSE_MTU;
+#if (AVCT_BROWSE_INCLUDED == TRUE)
+    tAVCT_CCB           *p_ccb;
+
+    if ((p_ccb = avct_ccb_by_idx(handle)) != NULL && p_ccb->p_bcb != NULL)
+    {
+        peer_mtu = p_ccb->p_bcb->peer_mtu;
+    }
+#else
+    UNUSED(handle);
+#endif
+    return peer_mtu;
+}
+
+/*******************************************************************************
+**
+** Function         AVCT_GetPeerMtu
+**
+** Description      Get the peer_mtu for the AVCTP channel of the given
+**                  connection.
+**
+** Returns          the peer MTU size.
+**
+*******************************************************************************/
+UINT16 AVCT_GetPeerMtu (UINT8 handle)
+{
+    UINT16      peer_mtu = L2CAP_DEFAULT_MTU;
+    tAVCT_CCB   *p_ccb;
+
+    /* map handle to ccb */
+    if ((p_ccb = avct_ccb_by_idx(handle)) != NULL)
+    {
+        if (p_ccb->p_lcb)
+        {
+            peer_mtu = p_ccb->p_lcb->peer_mtu;
+        }
+    }
+
+    return peer_mtu;
+}
+
+/*******************************************************************************
+**
+** Function         AVCT_MsgReq
+**
+** Description      Send an AVCTP message to a peer device.  In calling
+**                  AVCT_MsgReq(), the application should keep track of the
+**                  congestion state of AVCTP as communicated with events
+**                  AVCT_CONG_IND_EVT and AVCT_UNCONG_IND_EVT.   If the
+**                  application calls AVCT_MsgReq() when AVCTP is congested
+**                  the message may be discarded.  The application may make its
+**                  first call to AVCT_MsgReq() after it receives an
+**                  AVCT_CONNECT_CFM_EVT or AVCT_CONNECT_IND_EVT on control channel or
+**                  AVCT_BROWSE_CONN_CFM_EVT or AVCT_BROWSE_CONN_IND_EVT on browsing channel.
+**
+**                  p_msg->layer_specific must be set to
+**                  AVCT_DATA_CTRL for control channel traffic;
+**                  AVCT_DATA_BROWSE for for browse channel traffic.
+**
+** Returns          AVCT_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+UINT16 AVCT_MsgReq(UINT8 handle, UINT8 label, UINT8 cr, BT_HDR *p_msg)
+{
+    UINT16          result = AVCT_SUCCESS;
+    tAVCT_CCB       *p_ccb;
+    tAVCT_UL_MSG    ul_msg;
+
+    AVCT_TRACE_API("AVCT_MsgReq");
+
+    /* verify p_msg parameter */
+    if (p_msg == NULL)
+    {
+        return AVCT_NO_RESOURCES;
+    }
+    AVCT_TRACE_API("len: %d", p_msg->len);
+
+    /* map handle to ccb */
+    if ((p_ccb = avct_ccb_by_idx(handle)) == NULL)
+    {
+        result = AVCT_BAD_HANDLE;
+        osi_free(p_msg);
+    }
+    /* verify channel is bound to link */
+    else if (p_ccb->p_lcb == NULL)
+    {
+        result = AVCT_NOT_OPEN;
+        osi_free(p_msg);
+    }
+
+    if (result == AVCT_SUCCESS)
+    {
+        ul_msg.p_buf = p_msg;
+        ul_msg.p_ccb = p_ccb;
+        ul_msg.label = label;
+        ul_msg.cr = cr;
+
+#if (AVCT_BROWSE_INCLUDED == TRUE)
+        /* send msg event to bcb */
+        if (p_msg->layer_specific == AVCT_DATA_BROWSE)
+        {
+            if (p_ccb->p_bcb == NULL && (p_ccb->allocated & AVCT_ALOC_BCB) == 0)
+            {
+                /* BCB channel is not open and not allocated */
+                result = AVCT_BAD_HANDLE;
+                osi_free(p_msg);
+            }
+            else
+            {
+                p_ccb->p_bcb = avct_bcb_by_lcb(p_ccb->p_lcb);
+                avct_bcb_event(p_ccb->p_bcb, AVCT_LCB_UL_MSG_EVT, (tAVCT_LCB_EVT *) &ul_msg);
+            }
+        }
+        /* send msg event to lcb */
+        else
+#endif
+        {
+            avct_lcb_event(p_ccb->p_lcb, AVCT_LCB_UL_MSG_EVT, (tAVCT_LCB_EVT *) &ul_msg);
+        }
+    }
+    return result;
+}
+
diff --git a/rtkbt/code/bt/stack/avct/avct_ccb.c b/rtkbt/code/bt/stack/avct/avct_ccb.c
new file mode 100755
index 0000000..e0f87de
--- /dev/null
+++ b/rtkbt/code/bt/stack/avct/avct_ccb.c
@@ -0,0 +1,150 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This module contains functions which operate on the AVCTP connection
+ *  control block.
+ *
+ ******************************************************************************/
+
+#include <string.h>
+#include "bt_types.h"
+#include "bt_target.h"
+#include "avct_api.h"
+#include "avct_int.h"
+
+/*******************************************************************************
+**
+** Function         avct_ccb_alloc
+**
+** Description      Allocate a connection control block; copy parameters to ccb.
+**
+**
+** Returns          pointer to the ccb, or NULL if none could be allocated.
+**
+*******************************************************************************/
+tAVCT_CCB *avct_ccb_alloc(tAVCT_CC *p_cc)
+{
+    tAVCT_CCB   *p_ccb = &avct_cb.ccb[0];
+    int         i;
+
+    for (i = 0; i < AVCT_NUM_CONN; i++, p_ccb++)
+    {
+        if (!p_ccb->allocated)
+        {
+            p_ccb->allocated = AVCT_ALOC_LCB;
+            memcpy(&p_ccb->cc, p_cc, sizeof(tAVCT_CC));
+            AVCT_TRACE_DEBUG("avct_ccb_alloc %d", i);
+            break;
+        }
+    }
+
+    if (i == AVCT_NUM_CONN)
+    {
+        /* out of ccbs */
+        p_ccb = NULL;
+        AVCT_TRACE_WARNING("Out of ccbs");
+    }
+    return p_ccb;
+}
+
+/*******************************************************************************
+**
+** Function         avct_ccb_dealloc
+**
+** Description      Deallocate a connection control block and call application
+**                  callback.
+**
+**
+** Returns          void.
+**
+*******************************************************************************/
+void avct_ccb_dealloc(tAVCT_CCB *p_ccb, UINT8 event, UINT16 result, BD_ADDR bd_addr)
+{
+    tAVCT_CTRL_CBACK    *p_cback = p_ccb->cc.p_ctrl_cback;
+
+    AVCT_TRACE_DEBUG("avct_ccb_dealloc %d", avct_ccb_to_idx(p_ccb));
+#if (AVCT_BROWSE_INCLUDED == TRUE)
+    if(p_ccb->p_bcb == NULL)
+        memset(p_ccb, 0, sizeof(tAVCT_CCB));
+    else
+    {
+        /* control channel is down, but the browsing channel is still connected 0 disconnect it now */
+        avct_bcb_event(p_ccb->p_bcb, AVCT_LCB_UL_UNBIND_EVT, (tAVCT_LCB_EVT *) &p_ccb);
+        p_ccb->p_lcb = NULL;
+    }
+#else
+    memset(p_ccb, 0, sizeof(tAVCT_CCB));
+#endif
+
+    if (event != AVCT_NO_EVT)
+    {
+        (*p_cback)(avct_ccb_to_idx(p_ccb), event, result, bd_addr);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         avct_ccb_to_idx
+**
+** Description      Given a pointer to an ccb, return its index.
+**
+**
+** Returns          Index of ccb.
+**
+*******************************************************************************/
+UINT8 avct_ccb_to_idx(tAVCT_CCB *p_ccb)
+{
+    /* use array arithmetic to determine index */
+    return (UINT8) (p_ccb - avct_cb.ccb);
+}
+
+/*******************************************************************************
+**
+** Function         avct_ccb_by_idx
+**
+** Description      Return ccb pointer based on ccb index (or handle).
+**
+**
+** Returns          pointer to the ccb, or NULL if none found.
+**
+*******************************************************************************/
+tAVCT_CCB *avct_ccb_by_idx(UINT8 idx)
+{
+    tAVCT_CCB   *p_ccb;
+
+    /* verify index */
+    if (idx < AVCT_NUM_CONN)
+    {
+        p_ccb = &avct_cb.ccb[idx];
+
+        /* verify ccb is allocated */
+        if (!p_ccb->allocated)
+        {
+            p_ccb = NULL;
+            AVCT_TRACE_WARNING("ccb %d not allocated", idx);
+        }
+    }
+    else
+    {
+        p_ccb = NULL;
+        AVCT_TRACE_WARNING("No ccb for idx %d", idx);
+    }
+    return p_ccb;
+}
diff --git a/rtkbt/code/bt/stack/avct/avct_defs.h b/rtkbt/code/bt/stack/avct/avct_defs.h
new file mode 100755
index 0000000..30b8859
--- /dev/null
+++ b/rtkbt/code/bt/stack/avct/avct_defs.h
@@ -0,0 +1,62 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This contains constants definitions and other information from the AVCTP
+ *  specification.  This file is intended for use internal to AVCT only.
+ *
+ ******************************************************************************/
+#ifndef AVCT_DEFS_H
+#define AVCT_DEFS_H
+
+/*****************************************************************************
+** constants
+*****************************************************************************/
+
+/* packet type */
+#define AVCT_PKT_TYPE_SINGLE        0       /* single packet */
+#define AVCT_PKT_TYPE_START         1       /* start packet */
+#define AVCT_PKT_TYPE_CONT          2       /* continue packet */
+#define AVCT_PKT_TYPE_END           3       /* end packet */
+
+/* header lengths for different packet types */
+#define AVCT_HDR_LEN_SINGLE         3
+#define AVCT_HDR_LEN_START          4
+#define AVCT_HDR_LEN_CONT           1
+#define AVCT_HDR_LEN_END            1
+
+/* invalid cr+ipid value */
+#define AVCT_CR_IPID_INVALID        1
+
+/*****************************************************************************
+** message parsing and building macros
+*****************************************************************************/
+
+#define AVCT_BLD_HDR(p, label, type, cr_ipid) \
+    *(p)++ = ((label) << 4) | ((type) << 2) | (cr_ipid);
+
+#define AVCT_PRS_HDR(p, label, type, cr_ipid) \
+    label = *(p) >> 4; \
+    type = (*(p) >> 2) & 3; \
+    cr_ipid = *(p)++ & 3;
+
+#define AVCT_PRS_PKT_TYPE(p, type) \
+    type = (*(p) >> 2) & 3;
+
+#endif /* AVCT_DEFS_H */
diff --git a/rtkbt/code/bt/stack/avct/avct_int.h b/rtkbt/code/bt/stack/avct/avct_int.h
new file mode 100755
index 0000000..4f1705c
--- /dev/null
+++ b/rtkbt/code/bt/stack/avct/avct_int.h
@@ -0,0 +1,238 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains interfaces which are internal to AVCTP.
+ *
+ ******************************************************************************/
+#ifndef AVCT_INT_H
+#define AVCT_INT_H
+
+#include "osi/include/fixed_queue.h"
+#include "bt_common.h"
+#include "avct_api.h"
+#include "avct_defs.h"
+#include "l2c_api.h"
+
+/*****************************************************************************
+** constants
+*****************************************************************************/
+
+/* lcb state machine events */
+enum {
+    AVCT_LCB_UL_BIND_EVT,
+    AVCT_LCB_UL_UNBIND_EVT,
+    AVCT_LCB_UL_MSG_EVT,
+    AVCT_LCB_INT_CLOSE_EVT,
+    AVCT_LCB_LL_OPEN_EVT,
+    AVCT_LCB_LL_CLOSE_EVT,
+    AVCT_LCB_LL_MSG_EVT,
+    AVCT_LCB_LL_CONG_EVT
+};
+
+
+/* "states" used for L2CAP channel */
+#define AVCT_CH_IDLE    0       /* No connection */
+#define AVCT_CH_CONN    1       /* Waiting for connection confirm */
+#define AVCT_CH_CFG     2       /* Waiting for configuration complete */
+#define AVCT_CH_OPEN    3       /* Channel opened */
+
+/* "no event" indicator used by ccb dealloc */
+#define AVCT_NO_EVT     0xFF
+
+/*****************************************************************************
+** data types
+*****************************************************************************/
+/* sub control block type - common data members for tAVCT_LCB and tAVCT_BCB */
+typedef struct {
+    UINT16              peer_mtu;	    /* peer l2c mtu */
+    UINT16              ch_result;      /* L2CAP connection result value */
+    UINT16              ch_lcid;        /* L2CAP channel LCID */
+    UINT8               allocated;      /* 0, not allocated. index+1, otherwise. */
+    UINT8               state;          /* The state machine state */
+    UINT8               ch_state;       /* L2CAP channel state */
+    UINT8               ch_flags;       /* L2CAP configuration flags */
+} tAVCT_SCB;
+
+/* link control block type */
+typedef struct {
+    UINT16              peer_mtu;	    /* peer l2c mtu */
+    UINT16              ch_result;      /* L2CAP connection result value */
+    UINT16              ch_lcid;        /* L2CAP channel LCID */
+    UINT8               allocated;      /* 0, not allocated. index+1, otherwise. */
+    UINT8               state;          /* The state machine state */
+    UINT8               ch_state;       /* L2CAP channel state */
+    UINT8               ch_flags;       /* L2CAP configuration flags */
+    BT_HDR              *p_rx_msg;      /* Message being reassembled */
+    UINT16              conflict_lcid;  /* L2CAP channel LCID */
+    BD_ADDR             peer_addr;      /* BD address of peer */
+    fixed_queue_t       *tx_q;          /* Transmit data buffer queue       */
+    BOOLEAN             cong;           /* TRUE, if congested */
+} tAVCT_LCB;
+
+/* browse control block type */
+typedef struct {
+    UINT16              peer_mtu;	    /* peer l2c mtu */
+    UINT16              ch_result;      /* L2CAP connection result value */
+    UINT16              ch_lcid;        /* L2CAP channel LCID */
+    UINT8               allocated;      /* 0, not allocated. index+1, otherwise. */
+    UINT8               state;          /* The state machine state */
+    UINT8               ch_state;       /* L2CAP channel state */
+    UINT8               ch_flags;       /* L2CAP configuration flags */
+    BT_HDR              *p_tx_msg;      /* Message to be sent - in case the browsing channel is not open when MsgReg is called */
+    UINT8               ch_close;       /* CCB index+1, if CCB initiated channel close */
+} tAVCT_BCB;
+
+#define AVCT_ALOC_LCB       0x01
+#define AVCT_ALOC_BCB       0x02
+/* connection control block */
+typedef struct {
+    tAVCT_CC            cc;                 /* parameters from connection creation */
+    tAVCT_LCB           *p_lcb;             /* Associated LCB */
+    tAVCT_BCB           *p_bcb;             /* associated BCB */
+    BOOLEAN             ch_close;           /* Whether CCB initiated channel close */
+    UINT8               allocated;          /* Whether LCB/BCB is allocated */
+} tAVCT_CCB;
+
+/* data type associated with UL_MSG_EVT */
+typedef struct {
+    BT_HDR                  *p_buf;
+    tAVCT_CCB               *p_ccb;
+    UINT8                   label;
+    UINT8                   cr;
+} tAVCT_UL_MSG;
+
+/* union associated with lcb state machine events */
+typedef union {
+    tAVCT_UL_MSG            ul_msg;
+    BT_HDR                  *p_buf;
+    tAVCT_CCB               *p_ccb;
+    UINT16                  result;
+    BOOLEAN                 cong;
+    UINT8                   err_code;
+} tAVCT_LCB_EVT;
+
+/* Control block for AVCT */
+typedef struct {
+    tAVCT_LCB       lcb[AVCT_NUM_LINKS];    /* link control blocks */
+    tAVCT_BCB       bcb[AVCT_NUM_LINKS];    /* browse control blocks */
+    tAVCT_CCB       ccb[AVCT_NUM_CONN];     /* connection control blocks */
+    UINT16          mtu;                    /* our L2CAP MTU */
+    UINT16          mtu_br;                 /* our L2CAP MTU for the Browsing channel */
+    UINT8           trace_level;            /* trace level */
+} tAVCT_CB;
+
+/*****************************************************************************
+** function declarations
+*****************************************************************************/
+
+/* LCB function declarations */
+extern void avct_lcb_event(tAVCT_LCB *p_lcb, UINT8 event, tAVCT_LCB_EVT *p_data);
+#if (AVCT_BROWSE_INCLUDED == TRUE)
+extern void avct_bcb_event(tAVCT_BCB *p_bcb, UINT8 event, tAVCT_LCB_EVT *p_data);
+extern void avct_close_bcb(tAVCT_LCB *p_lcb, tAVCT_LCB_EVT *p_data);
+extern tAVCT_LCB *avct_lcb_by_bcb(tAVCT_BCB *p_bcb);
+extern tAVCT_BCB *avct_bcb_by_lcb(tAVCT_LCB *p_lcb);
+extern BOOLEAN avct_bcb_last_ccb(tAVCT_BCB *p_bcb, tAVCT_CCB *p_ccb_last);
+extern tAVCT_BCB *avct_bcb_by_lcid(UINT16 lcid);
+#endif
+extern tAVCT_LCB *avct_lcb_by_bd(BD_ADDR bd_addr);
+extern tAVCT_LCB *avct_lcb_alloc(BD_ADDR bd_addr);
+extern void avct_lcb_dealloc(tAVCT_LCB *p_lcb, tAVCT_LCB_EVT *p_data);
+extern tAVCT_LCB *avct_lcb_by_lcid(UINT16 lcid);
+extern tAVCT_CCB *avct_lcb_has_pid(tAVCT_LCB *p_lcb, UINT16 pid);
+extern BOOLEAN avct_lcb_last_ccb(tAVCT_LCB *p_lcb, tAVCT_CCB *p_ccb_last);
+
+/* LCB action functions */
+extern void avct_lcb_chnl_open(tAVCT_LCB *p_lcb, tAVCT_LCB_EVT *p_data);
+extern void avct_lcb_unbind_disc(tAVCT_LCB *p_lcb, tAVCT_LCB_EVT *p_data);
+extern void avct_lcb_open_ind(tAVCT_LCB *p_lcb, tAVCT_LCB_EVT *p_data);
+extern void avct_lcb_open_fail(tAVCT_LCB *p_lcb, tAVCT_LCB_EVT *p_data);
+extern void avct_lcb_close_ind(tAVCT_LCB *p_lcb, tAVCT_LCB_EVT *p_data);
+extern void avct_lcb_close_cfm(tAVCT_LCB *p_lcb, tAVCT_LCB_EVT *p_data);
+extern void avct_lcb_bind_conn(tAVCT_LCB *p_lcb, tAVCT_LCB_EVT *p_data);
+extern void avct_lcb_chk_disc(tAVCT_LCB *p_lcb, tAVCT_LCB_EVT *p_data);
+extern void avct_lcb_chnl_disc(tAVCT_LCB *p_lcb, tAVCT_LCB_EVT *p_data);
+extern void avct_lcb_bind_fail(tAVCT_LCB *p_lcb, tAVCT_LCB_EVT *p_data);
+extern void avct_lcb_cong_ind(tAVCT_LCB *p_lcb, tAVCT_LCB_EVT *p_data);
+extern void avct_lcb_discard_msg(tAVCT_LCB *p_lcb, tAVCT_LCB_EVT *p_data);
+extern void avct_lcb_send_msg(tAVCT_LCB *p_lcb, tAVCT_LCB_EVT *p_data);
+extern void avct_lcb_msg_ind(tAVCT_LCB *p_lcb, tAVCT_LCB_EVT *p_data);
+extern void avct_lcb_free_msg_ind(tAVCT_LCB *p_lcb, tAVCT_LCB_EVT *p_data);
+
+/* BCB action functions */
+#if (AVCT_BROWSE_INCLUDED == TRUE)
+typedef void (*tAVCT_BCB_ACTION)(tAVCT_BCB *p_bcb, tAVCT_LCB_EVT *p_data);
+extern void avct_bcb_chnl_open(tAVCT_BCB *p_bcb, tAVCT_LCB_EVT *p_data);
+extern void avct_bcb_unbind_disc(tAVCT_BCB *p_bcb, tAVCT_LCB_EVT *p_data);
+extern void avct_bcb_open_ind(tAVCT_BCB *p_bcb, tAVCT_LCB_EVT *p_data);
+extern void avct_bcb_open_fail(tAVCT_BCB *p_bcb, tAVCT_LCB_EVT *p_data);
+extern void avct_bcb_close_ind(tAVCT_BCB *p_bcb, tAVCT_LCB_EVT *p_data);
+extern void avct_bcb_close_cfm(tAVCT_BCB *p_bcb, tAVCT_LCB_EVT *p_data);
+extern void avct_bcb_bind_conn(tAVCT_BCB *p_bcb, tAVCT_LCB_EVT *p_data);
+extern void avct_bcb_chk_disc(tAVCT_BCB *p_bcb, tAVCT_LCB_EVT *p_data);
+extern void avct_bcb_chnl_disc(tAVCT_BCB *p_bcb, tAVCT_LCB_EVT *p_data);
+extern void avct_bcb_bind_fail(tAVCT_BCB *p_bcb, tAVCT_LCB_EVT *p_data);
+extern void avct_bcb_cong_ind(tAVCT_BCB *p_bcb, tAVCT_LCB_EVT *p_data);
+extern void avct_bcb_discard_msg(tAVCT_BCB *p_bcb, tAVCT_LCB_EVT *p_data);
+extern void avct_bcb_send_msg(tAVCT_BCB *p_bcb, tAVCT_LCB_EVT *p_data);
+extern void avct_bcb_msg_ind(tAVCT_BCB *p_bcb, tAVCT_LCB_EVT *p_data);
+extern void avct_bcb_free_msg_ind(tAVCT_BCB *p_bcb, tAVCT_LCB_EVT *p_data);
+
+extern void avct_bcb_dealloc(tAVCT_BCB *p_bcb, tAVCT_LCB_EVT *p_data);
+
+extern const tAVCT_BCB_ACTION avct_bcb_action[];
+extern const UINT8 avct_lcb_pkt_type_len[];
+extern const tL2CAP_FCR_OPTS avct_l2c_br_fcr_opts_def;
+#endif
+
+/* CCB function declarations */
+extern tAVCT_CCB *avct_ccb_alloc(tAVCT_CC *p_cc);
+extern void avct_ccb_dealloc(tAVCT_CCB *p_ccb, UINT8 event, UINT16 result, BD_ADDR bd_addr);
+extern UINT8 avct_ccb_to_idx(tAVCT_CCB *p_ccb);
+extern tAVCT_CCB *avct_ccb_by_idx(UINT8 idx);
+
+
+/*****************************************************************************
+** global data
+*****************************************************************************/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+/* Main control block */
+#if AVCT_DYNAMIC_MEMORY == FALSE
+extern tAVCT_CB avct_cb;
+#else
+extern tAVCT_CB *avct_cb_ptr;
+#define avct_cb (*avct_cb_ptr)
+#endif
+
+/* L2CAP callback registration structure */
+extern const tL2CAP_APPL_INFO avct_l2c_appl;
+#if (AVCT_BROWSE_INCLUDED == TRUE)
+extern const tL2CAP_APPL_INFO avct_l2c_br_appl;
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* AVCT_INT_H */
diff --git a/rtkbt/code/bt/stack/avct/avct_l2c.c b/rtkbt/code/bt/stack/avct/avct_l2c.c
new file mode 100755
index 0000000..ab91d7a
--- /dev/null
+++ b/rtkbt/code/bt/stack/avct/avct_l2c.c
@@ -0,0 +1,436 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This AVCTP module interfaces to L2CAP
+ *
+ ******************************************************************************/
+
+#include <string.h>
+#include "bt_types.h"
+#include "bt_target.h"
+#include "bt_utils.h"
+#include "avct_api.h"
+#include "avct_int.h"
+#include "l2c_api.h"
+#include "l2cdefs.h"
+
+/* Configuration flags. */
+#define AVCT_L2C_CFG_IND_DONE   (1<<0)
+#define AVCT_L2C_CFG_CFM_DONE   (1<<1)
+
+/* callback function declarations */
+void avct_l2c_connect_ind_cback(BD_ADDR bd_addr, UINT16 lcid, UINT16 psm, UINT8 id);
+void avct_l2c_connect_cfm_cback(UINT16 lcid, UINT16 result);
+void avct_l2c_config_cfm_cback(UINT16 lcid, tL2CAP_CFG_INFO *p_cfg);
+void avct_l2c_config_ind_cback(UINT16 lcid, tL2CAP_CFG_INFO *p_cfg);
+void avct_l2c_disconnect_ind_cback(UINT16 lcid, BOOLEAN ack_needed);
+void avct_l2c_disconnect_cfm_cback(UINT16 lcid, UINT16 result);
+void avct_l2c_congestion_ind_cback(UINT16 lcid, BOOLEAN is_congested);
+void avct_l2c_data_ind_cback(UINT16 lcid, BT_HDR *p_buf);
+
+/* L2CAP callback function structure */
+const tL2CAP_APPL_INFO avct_l2c_appl = {
+    avct_l2c_connect_ind_cback,
+    avct_l2c_connect_cfm_cback,
+    NULL,
+    avct_l2c_config_ind_cback,
+    avct_l2c_config_cfm_cback,
+    avct_l2c_disconnect_ind_cback,
+    avct_l2c_disconnect_cfm_cback,
+    NULL,
+    avct_l2c_data_ind_cback,
+    avct_l2c_congestion_ind_cback,
+    NULL                                /* tL2CA_TX_COMPLETE_CB */
+};
+
+/*******************************************************************************
+**
+** Function         avct_l2c_is_passive
+**
+** Description      check is the CCB associated with the given LCB was created
+**                  as passive
+**
+** Returns          TRUE, if the given LCB is created as AVCT_PASSIVE
+**
+*******************************************************************************/
+static BOOLEAN avct_l2c_is_passive (tAVCT_LCB *p_lcb)
+{
+    BOOLEAN     is_passive = FALSE;
+    tAVCT_CCB   *p_ccb = &avct_cb.ccb[0];
+    int         i;
+
+    for (i = 0; i < AVCT_NUM_CONN; i++, p_ccb++)
+    {
+        if (p_ccb->allocated && (p_ccb->p_lcb == p_lcb))
+        {
+            AVCT_TRACE_DEBUG("avct_l2c_is_ct control:x%x", p_ccb->cc.control);
+            if (p_ccb->cc.control & AVCT_PASSIVE)
+            {
+                is_passive = TRUE;
+                break;
+            }
+        }
+    }
+    return is_passive;
+}
+
+/*******************************************************************************
+**
+** Function         avct_l2c_connect_ind_cback
+**
+** Description      This is the L2CAP connect indication callback function.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void avct_l2c_connect_ind_cback(BD_ADDR bd_addr, UINT16 lcid, UINT16 psm, UINT8 id)
+{
+    tAVCT_LCB       *p_lcb;
+    UINT16          result = L2CAP_CONN_OK;
+    tL2CAP_CFG_INFO cfg;
+    UNUSED(psm);
+
+    /* do we already have a channel for this peer? */
+    if ((p_lcb = avct_lcb_by_bd(bd_addr)) == NULL)
+    {
+        /* no, allocate lcb */
+        if ((p_lcb = avct_lcb_alloc(bd_addr)) == NULL)
+        {
+            /* no ccb available, reject L2CAP connection */
+            result = L2CAP_CONN_NO_RESOURCES;
+        }
+    }
+    /* else we already have a channel for this peer */
+    else
+    {
+        if (!avct_l2c_is_passive (p_lcb) || (p_lcb->ch_state == AVCT_CH_OPEN))
+        {
+            /* this LCB included CT role - reject */
+            result = L2CAP_CONN_NO_RESOURCES;
+        }
+        else
+        {
+            /* TG role only - accept the connection from CT. move the channel ID to the conflict list */
+            p_lcb->conflict_lcid = p_lcb->ch_lcid;
+            AVCT_TRACE_DEBUG("avct_l2c_connect_ind_cback conflict_lcid:0x%x", p_lcb->conflict_lcid);
+        }
+    }
+
+    if(p_lcb)
+    {
+        AVCT_TRACE_DEBUG("avct_l2c_connect_ind_cback: 0x%x, res: %d, ch_state: %d",
+            lcid, result, p_lcb->ch_state);
+    }
+    /* Send L2CAP connect rsp */
+    L2CA_ConnectRsp(bd_addr, id, lcid, result, 0);
+
+    /* if result ok, proceed with connection */
+    if (result == L2CAP_CONN_OK)
+    {
+        /* store LCID */
+        p_lcb->ch_lcid = lcid;
+
+        /* transition to configuration state */
+        p_lcb->ch_state = AVCT_CH_CFG;
+
+        /* Send L2CAP config req */
+        memset(&cfg, 0, sizeof(tL2CAP_CFG_INFO));
+        cfg.mtu_present = TRUE;
+        cfg.mtu = avct_cb.mtu;
+        L2CA_ConfigReq(lcid, &cfg);
+        AVCT_TRACE_DEBUG("avct_l2c snd Cfg Req");
+    }
+
+#if (BT_USE_TRACES == TRUE)
+    if(p_lcb)
+        AVCT_TRACE_DEBUG("ch_state cni: %d ", p_lcb->ch_state);
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         avct_l2c_connect_cfm_cback
+**
+** Description      This is the L2CAP connect confirm callback function.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void avct_l2c_connect_cfm_cback(UINT16 lcid, UINT16 result)
+{
+    tAVCT_LCB       *p_lcb;
+    tL2CAP_CFG_INFO cfg;
+
+    /* look up lcb for this channel */
+    if ((p_lcb = avct_lcb_by_lcid(lcid)) != NULL)
+    {
+        AVCT_TRACE_DEBUG("avct_l2c_connect_cfm_cback lcid:0x%x result: %d ch_state: %d, conflict_lcid:0x%x",
+            lcid, result, p_lcb->ch_state, p_lcb->conflict_lcid);
+        /* if in correct state */
+        if (p_lcb->ch_state == AVCT_CH_CONN)
+        {
+            /* if result successful */
+            if (result == L2CAP_CONN_OK)
+            {
+                /* set channel state */
+                p_lcb->ch_state = AVCT_CH_CFG;
+
+                /* Send L2CAP config req */
+                memset(&cfg, 0, sizeof(tL2CAP_CFG_INFO));
+                cfg.mtu_present = TRUE;
+                cfg.mtu = avct_cb.mtu;
+                L2CA_ConfigReq(lcid, &cfg);
+                AVCT_TRACE_DEBUG("avct_l2c snd Cfg Req");
+            }
+            /* else failure */
+            else
+            {
+                AVCT_TRACE_DEBUG("avct_l2c_connect_cfm_cback conflict_lcid:0x%x", p_lcb->conflict_lcid);
+                if (p_lcb->conflict_lcid == lcid)
+                    p_lcb->conflict_lcid = 0;
+                else
+                    avct_lcb_event(p_lcb, AVCT_LCB_LL_CLOSE_EVT, (tAVCT_LCB_EVT *) &result);
+            }
+        }
+        else if (p_lcb->conflict_lcid == lcid)
+        {
+            /* we must be in AVCT_CH_CFG state for the ch_lcid channel */
+            AVCT_TRACE_DEBUG("avct_l2c_connect_cfm_cback ch_state: %d, conflict_lcid:0x%x", p_lcb->ch_state, p_lcb->conflict_lcid);
+            if (result == L2CAP_CONN_OK)
+            {
+                /* just in case the peer also accepts our connection - Send L2CAP disconnect req */
+                L2CA_DisconnectReq(lcid);
+            }
+            p_lcb->conflict_lcid = 0;
+        }
+        AVCT_TRACE_DEBUG("ch_state cnc: %d ", p_lcb->ch_state);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         avct_l2c_config_cfm_cback
+**
+** Description      This is the L2CAP config confirm callback function.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void avct_l2c_config_cfm_cback(UINT16 lcid, tL2CAP_CFG_INFO *p_cfg)
+{
+    tAVCT_LCB       *p_lcb;
+
+    /* look up lcb for this channel */
+    if ((p_lcb = avct_lcb_by_lcid(lcid)) != NULL)
+    {
+        AVCT_TRACE_DEBUG("avct_l2c_config_cfm_cback: 0x%x, ch_state: %d, res: %d",
+            lcid, p_lcb->ch_state, p_cfg->result);
+        /* if in correct state */
+        if (p_lcb->ch_state == AVCT_CH_CFG)
+        {
+            /* if result successful */
+            if (p_cfg->result == L2CAP_CFG_OK)
+            {
+                /* update flags */
+                p_lcb->ch_flags |= AVCT_L2C_CFG_CFM_DONE;
+
+                /* if configuration complete */
+                if (p_lcb->ch_flags & AVCT_L2C_CFG_IND_DONE)
+                {
+                    p_lcb->ch_state = AVCT_CH_OPEN;
+                    avct_lcb_event(p_lcb, AVCT_LCB_LL_OPEN_EVT, NULL);
+                }
+            }
+            /* else failure */
+            else
+            {
+                AVCT_TRACE_DEBUG("ERROR avct_l2c_config_cfm_cback L2CA_DisconnectReq %d ", p_lcb->ch_state);
+                /* store result value */
+                p_lcb->ch_result = p_cfg->result;
+
+                /* Send L2CAP disconnect req */
+                L2CA_DisconnectReq(lcid);
+            }
+        }
+        AVCT_TRACE_DEBUG("ch_state cfc: %d ", p_lcb->ch_state);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         avct_l2c_config_ind_cback
+**
+** Description      This is the L2CAP config indication callback function.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void avct_l2c_config_ind_cback(UINT16 lcid, tL2CAP_CFG_INFO *p_cfg)
+{
+    tAVCT_LCB       *p_lcb;
+
+    /* look up lcb for this channel */
+    if ((p_lcb = avct_lcb_by_lcid(lcid)) != NULL)
+    {
+        AVCT_TRACE_DEBUG("avct_l2c_config_ind_cback: 0x%x, ch_state: %d", lcid, p_lcb->ch_state);
+        /* store the mtu in tbl */
+        if (p_cfg->mtu_present)
+        {
+            p_lcb->peer_mtu = p_cfg->mtu;
+        }
+        else
+        {
+            p_lcb->peer_mtu = L2CAP_DEFAULT_MTU;
+        }
+
+        /* send L2CAP configure response */
+        memset(p_cfg, 0, sizeof(tL2CAP_CFG_INFO));
+        p_cfg->result = L2CAP_CFG_OK;
+        L2CA_ConfigRsp(lcid, p_cfg);
+
+        /* if first config ind */
+        if ((p_lcb->ch_flags & AVCT_L2C_CFG_IND_DONE) == 0)
+        {
+            /* update flags */
+            p_lcb->ch_flags |= AVCT_L2C_CFG_IND_DONE;
+
+            /* if configuration complete */
+            if (p_lcb->ch_flags & AVCT_L2C_CFG_CFM_DONE)
+            {
+                p_lcb->ch_state = AVCT_CH_OPEN;
+                avct_lcb_event(p_lcb, AVCT_LCB_LL_OPEN_EVT, NULL);
+            }
+        }
+        AVCT_TRACE_DEBUG("ch_state cfi: %d ", p_lcb->ch_state);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         avct_l2c_disconnect_ind_cback
+**
+** Description      This is the L2CAP disconnect indication callback function.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void avct_l2c_disconnect_ind_cback(UINT16 lcid, BOOLEAN ack_needed)
+{
+    tAVCT_LCB       *p_lcb;
+    UINT16          result = AVCT_RESULT_FAIL;
+
+    /* look up lcb for this channel */
+    if ((p_lcb = avct_lcb_by_lcid(lcid)) != NULL)
+    {
+        AVCT_TRACE_DEBUG("avct_l2c_disconnect_ind_cback: 0x%x, ch_state: %d", lcid, p_lcb->ch_state);
+        if (ack_needed)
+        {
+            /* send L2CAP disconnect response */
+            L2CA_DisconnectRsp(lcid);
+        }
+
+        avct_lcb_event(p_lcb, AVCT_LCB_LL_CLOSE_EVT, (tAVCT_LCB_EVT *) &result);
+        AVCT_TRACE_DEBUG("ch_state di: %d ", p_lcb->ch_state);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         avct_l2c_disconnect_cfm_cback
+**
+** Description      This is the L2CAP disconnect confirm callback function.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void avct_l2c_disconnect_cfm_cback(UINT16 lcid, UINT16 result)
+{
+    tAVCT_LCB       *p_lcb;
+    UINT16          res;
+
+    /* look up lcb for this channel */
+    if ((p_lcb = avct_lcb_by_lcid(lcid)) != NULL)
+    {
+        AVCT_TRACE_DEBUG("avct_l2c_disconnect_cfm_cback: 0x%x, ch_state: %d, res: %d",
+            lcid, p_lcb->ch_state, result);
+        /* result value may be previously stored */
+        res = (p_lcb->ch_result != 0) ? p_lcb->ch_result : result;
+        p_lcb->ch_result = 0;
+
+        avct_lcb_event(p_lcb, AVCT_LCB_LL_CLOSE_EVT, (tAVCT_LCB_EVT *) &res);
+        AVCT_TRACE_DEBUG("ch_state dc: %d ", p_lcb->ch_state);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         avct_l2c_congestion_ind_cback
+**
+** Description      This is the L2CAP congestion indication callback function.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void avct_l2c_congestion_ind_cback(UINT16 lcid, BOOLEAN is_congested)
+{
+    tAVCT_LCB       *p_lcb;
+
+    AVCT_TRACE_DEBUG("avct_l2c_congestion_ind_cback: 0x%x", lcid);
+    /* look up lcb for this channel */
+    if ((p_lcb = avct_lcb_by_lcid(lcid)) != NULL)
+    {
+        avct_lcb_event(p_lcb, AVCT_LCB_LL_CONG_EVT, (tAVCT_LCB_EVT *) &is_congested);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         avct_l2c_data_ind_cback
+**
+** Description      This is the L2CAP data indication callback function.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void avct_l2c_data_ind_cback(UINT16 lcid, BT_HDR *p_buf)
+{
+    tAVCT_LCB       *p_lcb;
+
+    AVCT_TRACE_DEBUG("avct_l2c_data_ind_cback: 0x%x", lcid);
+    /* look up lcb for this channel */
+    if ((p_lcb = avct_lcb_by_lcid(lcid)) != NULL)
+    {
+        avct_lcb_event(p_lcb, AVCT_LCB_LL_MSG_EVT, (tAVCT_LCB_EVT *) &p_buf);
+    }
+    else /* prevent buffer leak */
+    {
+        AVCT_TRACE_WARNING("ERROR -> avct_l2c_data_ind_cback drop buffer");
+        osi_free(p_buf);
+    }
+}
+
diff --git a/rtkbt/code/bt/stack/avct/avct_lcb.c b/rtkbt/code/bt/stack/avct/avct_lcb.c
new file mode 100755
index 0000000..2f01548
--- /dev/null
+++ b/rtkbt/code/bt/stack/avct/avct_lcb.c
@@ -0,0 +1,464 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This module contains the link control state machine and functions which
+ *  operate on the link control block.
+ *
+ ******************************************************************************/
+
+#include <string.h>
+#include "bt_types.h"
+#include "bt_target.h"
+#include "bt_utils.h"
+#include "avct_api.h"
+#include "avct_int.h"
+#include "bt_common.h"
+
+/*****************************************************************************
+** state machine constants and types
+*****************************************************************************/
+
+#if BT_TRACE_VERBOSE == TRUE
+
+/* verbose state strings for trace */
+const char * const avct_lcb_st_str[] = {
+    "LCB_IDLE_ST",
+    "LCB_OPENING_ST",
+    "LCB_OPEN_ST",
+    "LCB_CLOSING_ST"
+};
+
+/* verbose event strings for trace */
+const char * const avct_lcb_evt_str[] = {
+    "UL_BIND_EVT",
+    "UL_UNBIND_EVT",
+    "UL_MSG_EVT",
+    "INT_CLOSE_EVT",
+    "LL_OPEN_EVT",
+    "LL_CLOSE_EVT",
+    "LL_MSG_EVT",
+    "LL_CONG_EVT"
+};
+
+#endif
+
+/* lcb state machine states */
+enum {
+    AVCT_LCB_IDLE_ST,
+    AVCT_LCB_OPENING_ST,
+    AVCT_LCB_OPEN_ST,
+    AVCT_LCB_CLOSING_ST
+};
+
+/* state machine action enumeration list */
+enum {
+    AVCT_LCB_CHNL_OPEN,
+    AVCT_LCB_CHNL_DISC,
+    AVCT_LCB_SEND_MSG,
+    AVCT_LCB_OPEN_IND,
+    AVCT_LCB_OPEN_FAIL,
+    AVCT_LCB_CLOSE_IND,
+    AVCT_LCB_CLOSE_CFM,
+    AVCT_LCB_MSG_IND,
+    AVCT_LCB_CONG_IND,
+    AVCT_LCB_BIND_CONN,
+    AVCT_LCB_BIND_FAIL,
+    AVCT_LCB_UNBIND_DISC,
+    AVCT_LCB_CHK_DISC,
+    AVCT_LCB_DISCARD_MSG,
+    AVCT_LCB_DEALLOC,
+    AVCT_LCB_FREE_MSG_IND,
+    AVCT_LCB_NUM_ACTIONS
+};
+
+#define AVCT_LCB_IGNORE     AVCT_LCB_NUM_ACTIONS
+
+/* type for action functions */
+typedef void (*tAVCT_LCB_ACTION)(tAVCT_LCB *p_ccb, tAVCT_LCB_EVT *p_data);
+
+/* action function list */
+const tAVCT_LCB_ACTION avct_lcb_action[] = {
+    avct_lcb_chnl_open,
+    avct_lcb_chnl_disc,
+    avct_lcb_send_msg,
+    avct_lcb_open_ind,
+    avct_lcb_open_fail,
+    avct_lcb_close_ind,
+    avct_lcb_close_cfm,
+    avct_lcb_msg_ind,
+    avct_lcb_cong_ind,
+    avct_lcb_bind_conn,
+    avct_lcb_bind_fail,
+    avct_lcb_unbind_disc,
+    avct_lcb_chk_disc,
+    avct_lcb_discard_msg,
+    avct_lcb_dealloc,
+    avct_lcb_free_msg_ind
+};
+
+/* state table information */
+#define AVCT_LCB_ACTIONS            2       /* number of actions */
+#define AVCT_LCB_NEXT_STATE         2       /* position of next state */
+#define AVCT_LCB_NUM_COLS           3       /* number of columns in state tables */
+
+/* state table for idle state */
+const UINT8 avct_lcb_st_idle[][AVCT_LCB_NUM_COLS] = {
+/* Event                Action 1                    Action 2                    Next state */
+/* UL_BIND_EVT */       {AVCT_LCB_CHNL_OPEN,        AVCT_LCB_IGNORE,            AVCT_LCB_OPENING_ST},
+/* UL_UNBIND_EVT */     {AVCT_LCB_UNBIND_DISC,      AVCT_LCB_IGNORE,            AVCT_LCB_IDLE_ST},
+/* UL_MSG_EVT */        {AVCT_LCB_DISCARD_MSG,      AVCT_LCB_IGNORE,            AVCT_LCB_IDLE_ST},
+/* INT_CLOSE_EVT */     {AVCT_LCB_IGNORE,           AVCT_LCB_IGNORE,            AVCT_LCB_IDLE_ST},
+/* LL_OPEN_EVT */       {AVCT_LCB_OPEN_IND,         AVCT_LCB_IGNORE,            AVCT_LCB_OPEN_ST},
+/* LL_CLOSE_EVT */      {AVCT_LCB_CLOSE_IND,        AVCT_LCB_DEALLOC,           AVCT_LCB_IDLE_ST},
+/* LL_MSG_EVT */        {AVCT_LCB_FREE_MSG_IND,     AVCT_LCB_IGNORE,            AVCT_LCB_IDLE_ST},
+/* LL_CONG_EVT */       {AVCT_LCB_IGNORE,           AVCT_LCB_IGNORE,            AVCT_LCB_IDLE_ST}
+};
+
+/* state table for opening state */
+const UINT8 avct_lcb_st_opening[][AVCT_LCB_NUM_COLS] = {
+/* Event                Action 1                    Action 2                    Next state */
+/* UL_BIND_EVT */       {AVCT_LCB_IGNORE,           AVCT_LCB_IGNORE,            AVCT_LCB_OPENING_ST},
+/* UL_UNBIND_EVT */     {AVCT_LCB_UNBIND_DISC,      AVCT_LCB_IGNORE,            AVCT_LCB_OPENING_ST},
+/* UL_MSG_EVT */        {AVCT_LCB_DISCARD_MSG,      AVCT_LCB_IGNORE,            AVCT_LCB_OPENING_ST},
+/* INT_CLOSE_EVT */     {AVCT_LCB_CHNL_DISC,        AVCT_LCB_IGNORE,            AVCT_LCB_CLOSING_ST},
+/* LL_OPEN_EVT */       {AVCT_LCB_OPEN_IND,         AVCT_LCB_IGNORE,            AVCT_LCB_OPEN_ST},
+/* LL_CLOSE_EVT */      {AVCT_LCB_OPEN_FAIL,        AVCT_LCB_DEALLOC,           AVCT_LCB_IDLE_ST},
+/* LL_MSG_EVT */        {AVCT_LCB_FREE_MSG_IND,     AVCT_LCB_IGNORE,            AVCT_LCB_OPENING_ST},
+/* LL_CONG_EVT */       {AVCT_LCB_CONG_IND,         AVCT_LCB_IGNORE,            AVCT_LCB_OPENING_ST}
+};
+
+/* state table for open state */
+const UINT8 avct_lcb_st_open[][AVCT_LCB_NUM_COLS] = {
+/* Event                Action 1                    Action 2                    Next state */
+/* UL_BIND_EVT */       {AVCT_LCB_BIND_CONN,        AVCT_LCB_IGNORE,            AVCT_LCB_OPEN_ST},
+/* UL_UNBIND_EVT */     {AVCT_LCB_CHK_DISC,         AVCT_LCB_IGNORE,            AVCT_LCB_OPEN_ST},
+/* UL_MSG_EVT */        {AVCT_LCB_SEND_MSG,         AVCT_LCB_IGNORE,            AVCT_LCB_OPEN_ST},
+/* INT_CLOSE_EVT */     {AVCT_LCB_CHNL_DISC,        AVCT_LCB_IGNORE,            AVCT_LCB_CLOSING_ST},
+/* LL_OPEN_EVT */       {AVCT_LCB_IGNORE,           AVCT_LCB_IGNORE,            AVCT_LCB_OPEN_ST},
+/* LL_CLOSE_EVT */      {AVCT_LCB_CLOSE_IND,        AVCT_LCB_DEALLOC,           AVCT_LCB_IDLE_ST},
+/* LL_MSG_EVT */        {AVCT_LCB_MSG_IND,          AVCT_LCB_IGNORE,            AVCT_LCB_OPEN_ST},
+/* LL_CONG_EVT */       {AVCT_LCB_CONG_IND,         AVCT_LCB_IGNORE,            AVCT_LCB_OPEN_ST}
+};
+
+/* state table for closing state */
+const UINT8 avct_lcb_st_closing[][AVCT_LCB_NUM_COLS] = {
+/* Event                Action 1                    Action 2                    Next state */
+/* UL_BIND_EVT */       {AVCT_LCB_BIND_FAIL,        AVCT_LCB_IGNORE,            AVCT_LCB_CLOSING_ST},
+/* UL_UNBIND_EVT */     {AVCT_LCB_IGNORE,           AVCT_LCB_IGNORE,            AVCT_LCB_CLOSING_ST},
+/* UL_MSG_EVT */        {AVCT_LCB_DISCARD_MSG,      AVCT_LCB_IGNORE,            AVCT_LCB_CLOSING_ST},
+/* INT_CLOSE_EVT */     {AVCT_LCB_IGNORE,           AVCT_LCB_IGNORE,            AVCT_LCB_CLOSING_ST},
+/* LL_OPEN_EVT */       {AVCT_LCB_IGNORE,           AVCT_LCB_IGNORE,            AVCT_LCB_CLOSING_ST},
+/* LL_CLOSE_EVT */      {AVCT_LCB_CLOSE_CFM,        AVCT_LCB_DEALLOC,           AVCT_LCB_IDLE_ST},
+/* LL_MSG_EVT */        {AVCT_LCB_FREE_MSG_IND,     AVCT_LCB_IGNORE,            AVCT_LCB_CLOSING_ST},
+/* LL_CONG_EVT */       {AVCT_LCB_IGNORE,           AVCT_LCB_IGNORE,            AVCT_LCB_CLOSING_ST}
+};
+
+/* type for state table */
+typedef const UINT8 (*tAVCT_LCB_ST_TBL)[AVCT_LCB_NUM_COLS];
+
+/* state table */
+const tAVCT_LCB_ST_TBL avct_lcb_st_tbl[] = {
+    avct_lcb_st_idle,
+    avct_lcb_st_opening,
+    avct_lcb_st_open,
+    avct_lcb_st_closing
+};
+
+/*******************************************************************************
+**
+** Function         avct_lcb_event
+**
+** Description      State machine event handling function for lcb
+**
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avct_lcb_event(tAVCT_LCB *p_lcb, UINT8 event, tAVCT_LCB_EVT *p_data)
+{
+    tAVCT_LCB_ST_TBL    state_table;
+    UINT8               action;
+    int                 i;
+
+#if BT_TRACE_VERBOSE == TRUE
+    AVCT_TRACE_EVENT("LCB lcb=%d event=%s state=%s", p_lcb->allocated, avct_lcb_evt_str[event], avct_lcb_st_str[p_lcb->state]);
+#else
+    AVCT_TRACE_EVENT("LCB lcb=%d event=%d state=%d", p_lcb->allocated, event, p_lcb->state);
+#endif
+
+    /* look up the state table for the current state */
+    state_table = avct_lcb_st_tbl[p_lcb->state];
+
+    /* set next state */
+    p_lcb->state = state_table[event][AVCT_LCB_NEXT_STATE];
+
+    /* execute action functions */
+    for (i = 0; i < AVCT_LCB_ACTIONS; i++)
+    {
+        if ((action = state_table[event][i]) != AVCT_LCB_IGNORE)
+        {
+            (*avct_lcb_action[action])(p_lcb, p_data);
+        }
+        else
+        {
+            break;
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         avct_bcb_event
+**
+** Description      State machine event handling function for lcb
+**
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+#if (AVCT_BROWSE_INCLUDED == TRUE)
+void avct_bcb_event(tAVCT_BCB *p_bcb, UINT8 event, tAVCT_LCB_EVT *p_data)
+{
+    tAVCT_LCB_ST_TBL    state_table;
+    UINT8               action;
+    int                 i;
+
+#if BT_TRACE_VERBOSE == TRUE
+    AVCT_TRACE_EVENT("BCB lcb=%d event=%s state=%s", p_bcb->allocated, avct_lcb_evt_str[event], avct_lcb_st_str[p_bcb->state]);
+#else
+    AVCT_TRACE_EVENT("BCB lcb=%d event=%d state=%d", p_bcb->allocated, event, p_bcb->state);
+#endif
+
+    /* look up the state table for the current state */
+    state_table = avct_lcb_st_tbl[p_bcb->state];
+
+    /* set next state */
+    p_bcb->state = state_table[event][AVCT_LCB_NEXT_STATE];
+
+    /* execute action functions */
+    for (i = 0; i < AVCT_LCB_ACTIONS; i++)
+    {
+        if ((action = state_table[event][i]) != AVCT_LCB_IGNORE)
+        {
+            (*avct_bcb_action[action])(p_bcb, p_data);
+        }
+        else
+        {
+            break;
+        }
+    }
+}
+#endif
+
+/*******************************************************************************
+**
+** Function         avct_lcb_by_bd
+**
+** Description      This lookup function finds the lcb for a BD address.
+**
+**
+** Returns          pointer to the lcb, or NULL if none found.
+**
+*******************************************************************************/
+tAVCT_LCB *avct_lcb_by_bd(BD_ADDR bd_addr)
+{
+    tAVCT_LCB   *p_lcb = &avct_cb.lcb[0];
+    int         i;
+
+    for (i = 0; i < AVCT_NUM_LINKS; i++, p_lcb++)
+    {
+        /* if allocated lcb has matching lcb */
+        if (p_lcb->allocated && (!memcmp(p_lcb->peer_addr, bd_addr, BD_ADDR_LEN)))
+        {
+            break;
+        }
+    }
+
+    if (i == AVCT_NUM_LINKS)
+    {
+        /* if no lcb found */
+        p_lcb = NULL;
+
+        AVCT_TRACE_DEBUG("No lcb for addr %02x-%02x-%02x-%02x-%02x-%02x",
+                          bd_addr[0], bd_addr[1], bd_addr[2], bd_addr[3], bd_addr[4], bd_addr[5]);
+    }
+    return p_lcb;
+}
+
+/*******************************************************************************
+**
+** Function         avct_lcb_alloc
+**
+** Description      Allocate a link control block.
+**
+**
+** Returns          pointer to the lcb, or NULL if none could be allocated.
+**
+*******************************************************************************/
+tAVCT_LCB *avct_lcb_alloc(BD_ADDR bd_addr)
+{
+    tAVCT_LCB   *p_lcb = &avct_cb.lcb[0];
+    int         i;
+
+    for (i = 0; i < AVCT_NUM_LINKS; i++, p_lcb++)
+    {
+        if (!p_lcb->allocated)
+        {
+            p_lcb->allocated = (UINT8)(i + 1);
+            memcpy(p_lcb->peer_addr, bd_addr, BD_ADDR_LEN);
+            AVCT_TRACE_DEBUG("avct_lcb_alloc %d", p_lcb->allocated);
+            p_lcb->tx_q = fixed_queue_new(SIZE_MAX);
+            break;
+        }
+    }
+
+    if (i == AVCT_NUM_LINKS)
+    {
+        /* out of lcbs */
+        p_lcb = NULL;
+        AVCT_TRACE_WARNING("Out of lcbs");
+    }
+    return p_lcb;
+}
+
+/*******************************************************************************
+**
+** Function         avct_lcb_dealloc
+**
+** Description      Deallocate a link control block.
+**
+**
+** Returns          void.
+**
+*******************************************************************************/
+void avct_lcb_dealloc(tAVCT_LCB *p_lcb, tAVCT_LCB_EVT *p_data)
+{
+    UNUSED(p_data);
+
+    AVCT_TRACE_DEBUG("%s allocated: %d", __func__, p_lcb->allocated);
+
+    // Check if the LCB is still referenced
+
+    tAVCT_CCB *p_ccb = &avct_cb.ccb[0];
+    for (size_t i = 0; i < AVCT_NUM_CONN; i++, p_ccb++)
+    {
+        if (p_ccb->allocated && p_ccb->p_lcb == p_lcb)
+        {
+            AVCT_TRACE_DEBUG("%s LCB in use; lcb index: %d", __func__, i);
+            return;
+        }
+    }
+
+    // If not, de-allocate now...
+
+    AVCT_TRACE_DEBUG("%s Freeing LCB", __func__);
+    osi_free(p_lcb->p_rx_msg);
+    fixed_queue_free(p_lcb->tx_q, NULL);
+    memset(p_lcb, 0, sizeof(tAVCT_LCB));
+}
+
+/*******************************************************************************
+**
+** Function         avct_lcb_by_lcid
+**
+** Description      Find the LCB associated with the L2CAP LCID
+**
+**
+** Returns          pointer to the lcb, or NULL if none found.
+**
+*******************************************************************************/
+tAVCT_LCB *avct_lcb_by_lcid(UINT16 lcid)
+{
+    tAVCT_LCB   *p_lcb = &avct_cb.lcb[0];
+    int         i;
+
+    for (i = 0; i < AVCT_NUM_LINKS; i++, p_lcb++)
+    {
+        if (p_lcb->allocated && ((p_lcb->ch_lcid == lcid) || (p_lcb->conflict_lcid == lcid)))
+        {
+            break;
+        }
+    }
+
+    if (i == AVCT_NUM_LINKS)
+    {
+        /* out of lcbs */
+        p_lcb = NULL;
+        AVCT_TRACE_WARNING("No lcb for lcid %x", lcid);
+    }
+
+    return p_lcb;
+}
+
+/*******************************************************************************
+**
+** Function         avct_lcb_has_pid
+**
+** Description      See if any ccbs on this lcb have a particular pid.
+**
+**
+** Returns          Pointer to CCB if PID found, NULL otherwise.
+**
+*******************************************************************************/
+tAVCT_CCB *avct_lcb_has_pid(tAVCT_LCB *p_lcb, UINT16 pid)
+{
+    tAVCT_CCB   *p_ccb = &avct_cb.ccb[0];
+    int         i;
+
+    for (i = 0; i < AVCT_NUM_CONN; i++, p_ccb++)
+    {
+        if (p_ccb->allocated && (p_ccb->p_lcb == p_lcb) && (p_ccb->cc.pid == pid))
+        {
+            return p_ccb;
+        }
+    }
+    return NULL;
+}
+
+/*******************************************************************************
+**
+** Function         avct_lcb_last_ccb
+**
+** Description      See if given ccb is only one on the lcb.
+**
+**
+** Returns          TRUE if ccb is last, FALSE otherwise.
+**
+*******************************************************************************/
+BOOLEAN avct_lcb_last_ccb(tAVCT_LCB *p_lcb, tAVCT_CCB *p_ccb_last)
+{
+    tAVCT_CCB   *p_ccb = &avct_cb.ccb[0];
+    int         i;
+
+    AVCT_TRACE_WARNING("avct_lcb_last_ccb");
+    for (i = 0; i < AVCT_NUM_CONN; i++, p_ccb++)
+    {
+        AVCT_TRACE_WARNING("%x: aloc:%d, lcb:0x%x/0x%x, ccb:0x%x/0x%x",
+            i, p_ccb->allocated, p_ccb->p_lcb, p_lcb, p_ccb, p_ccb_last);
+        if (p_ccb->allocated && (p_ccb->p_lcb == p_lcb) && (p_ccb != p_ccb_last))
+        {
+            return FALSE;
+        }
+    }
+    return TRUE;
+}
+
+
+
diff --git a/rtkbt/code/bt/stack/avct/avct_lcb_act.c b/rtkbt/code/bt/stack/avct/avct_lcb_act.c
new file mode 100755
index 0000000..c927622
--- /dev/null
+++ b/rtkbt/code/bt/stack/avct/avct_lcb_act.c
@@ -0,0 +1,720 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This module contains action functions of the link control state machine.
+ *
+ ******************************************************************************/
+
+#include <string.h>
+#include "bt_types.h"
+#include "bt_target.h"
+#include "bt_utils.h"
+#include "avct_api.h"
+#include "avct_int.h"
+#include "bt_common.h"
+#include "btm_api.h"
+
+/* packet header length lookup table */
+const UINT8 avct_lcb_pkt_type_len[] = {
+    AVCT_HDR_LEN_SINGLE,
+    AVCT_HDR_LEN_START,
+    AVCT_HDR_LEN_CONT,
+    AVCT_HDR_LEN_END
+};
+
+/*******************************************************************************
+**
+** Function         avct_lcb_msg_asmbl
+**
+** Description      Reassemble incoming message.
+**
+**
+** Returns          Pointer to reassembled message;  NULL if no message
+**                  available.
+**
+*******************************************************************************/
+static BT_HDR *avct_lcb_msg_asmbl(tAVCT_LCB *p_lcb, BT_HDR *p_buf)
+{
+    UINT8   *p;
+    UINT8   pkt_type;
+    BT_HDR  *p_ret;
+
+    /* parse the message header */
+    p = (UINT8 *)(p_buf + 1) + p_buf->offset;
+    AVCT_PRS_PKT_TYPE(p, pkt_type);
+
+    /* quick sanity check on length */
+    if (p_buf->len < avct_lcb_pkt_type_len[pkt_type])
+    {
+        osi_free(p_buf);
+        AVCT_TRACE_WARNING("Bad length during reassembly");
+        p_ret = NULL;
+    }
+    /* single packet */
+    else if (pkt_type == AVCT_PKT_TYPE_SINGLE)
+    {
+        /* if reassembly in progress drop message and process new single */
+        if (p_lcb->p_rx_msg != NULL)
+            AVCT_TRACE_WARNING("Got single during reassembly");
+
+        osi_free_and_reset((void **)&p_lcb->p_rx_msg);
+
+        p_ret = p_buf;
+    }
+    /* start packet */
+    else if (pkt_type == AVCT_PKT_TYPE_START)
+    {
+        /* if reassembly in progress drop message and process new start */
+        if (p_lcb->p_rx_msg != NULL)
+            AVCT_TRACE_WARNING("Got start during reassembly");
+
+        osi_free(p_lcb->p_rx_msg);
+
+        /*
+         * Allocate bigger buffer for reassembly. As lower layers are
+         * not aware of possible packet size after reassembly, they
+         * would have allocated smaller buffer.
+         */
+        p_lcb->p_rx_msg = (BT_HDR *)osi_malloc(BT_DEFAULT_BUFFER_SIZE);
+        memcpy(p_lcb->p_rx_msg, p_buf,
+               sizeof(BT_HDR) + p_buf->offset + p_buf->len);
+
+        /* Free original buffer */
+        osi_free(p_buf);
+
+        /* update p to point to new buffer */
+        p = (UINT8 *)(p_lcb->p_rx_msg + 1) + p_lcb->p_rx_msg->offset;
+
+        /* copy first header byte over nosp */
+        *(p + 1) = *p;
+
+        /* set offset to point to where to copy next */
+        p_lcb->p_rx_msg->offset += p_lcb->p_rx_msg->len;
+
+        /* adjust length for packet header */
+        p_lcb->p_rx_msg->len -= 1;
+
+        p_ret = NULL;
+    }
+    /* continue or end */
+    else
+    {
+        /* if no reassembly in progress drop message */
+        if (p_lcb->p_rx_msg == NULL)
+        {
+            osi_free(p_buf);
+            AVCT_TRACE_WARNING("Pkt type=%d out of order", pkt_type);
+            p_ret = NULL;
+        }
+        else
+        {
+            /* get size of buffer holding assembled message */
+            /*
+             * NOTE: The buffer is allocated above at the beginning of the
+             * reassembly, and is always of size BT_DEFAULT_BUFFER_SIZE.
+             */
+            UINT16 buf_len = BT_DEFAULT_BUFFER_SIZE - sizeof(BT_HDR);
+
+            /* adjust offset and len of fragment for header byte */
+            p_buf->offset += AVCT_HDR_LEN_CONT;
+            p_buf->len -= AVCT_HDR_LEN_CONT;
+
+            /* verify length */
+            if ((p_lcb->p_rx_msg->offset + p_buf->len) > buf_len) {
+                /* won't fit; free everything */
+                AVCT_TRACE_WARNING("%s: Fragmented message too big!", __func__);
+                osi_free_and_reset((void **)&p_lcb->p_rx_msg);
+                osi_free(p_buf);
+                p_ret = NULL;
+            } else {
+                /* copy contents of p_buf to p_rx_msg */
+                memcpy((UINT8 *)(p_lcb->p_rx_msg + 1) + p_lcb->p_rx_msg->offset,
+                       (UINT8 *)(p_buf + 1) + p_buf->offset, p_buf->len);
+
+                if (pkt_type == AVCT_PKT_TYPE_END)
+                {
+                    p_lcb->p_rx_msg->offset -= p_lcb->p_rx_msg->len;
+                    p_lcb->p_rx_msg->len += p_buf->len;
+                    p_ret = p_lcb->p_rx_msg;
+                    p_lcb->p_rx_msg = NULL;
+                }
+                else
+                {
+                    p_lcb->p_rx_msg->offset += p_buf->len;
+                    p_lcb->p_rx_msg->len += p_buf->len;
+                    p_ret = NULL;
+                }
+                osi_free(p_buf);
+            }
+        }
+    }
+    return p_ret;
+}
+
+
+/*******************************************************************************
+**
+** Function         avct_lcb_chnl_open
+**
+** Description      Open L2CAP channel to peer
+**
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avct_lcb_chnl_open(tAVCT_LCB *p_lcb, tAVCT_LCB_EVT *p_data)
+{
+    UINT16 result = AVCT_RESULT_FAIL;
+    UNUSED(p_data);
+
+    BTM_SetOutService(p_lcb->peer_addr, BTM_SEC_SERVICE_AVCTP, 0);
+    /* call l2cap connect req */
+    p_lcb->ch_state = AVCT_CH_CONN;
+    if ((p_lcb->ch_lcid = L2CA_ConnectReq(AVCT_PSM, p_lcb->peer_addr)) == 0)
+    {
+        /* if connect req failed, send ourselves close event */
+        avct_lcb_event(p_lcb, AVCT_LCB_LL_CLOSE_EVT, (tAVCT_LCB_EVT *) &result);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         avct_lcb_unbind_disc
+**
+** Description      Deallocate ccb and call callback with disconnect event.
+**
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avct_lcb_unbind_disc(tAVCT_LCB *p_lcb, tAVCT_LCB_EVT *p_data)
+{
+    UNUSED(p_lcb);
+
+    avct_ccb_dealloc(p_data->p_ccb, AVCT_DISCONNECT_CFM_EVT, 0, NULL);
+}
+
+/*******************************************************************************
+**
+** Function         avct_lcb_open_ind
+**
+** Description      Handle an LL_OPEN event.  For each allocated ccb already
+**                  bound to this lcb, send a connect event.  For each
+**                  unbound ccb with a new PID, bind that ccb to this lcb and
+**                  send a connect event.
+**
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avct_lcb_open_ind(tAVCT_LCB *p_lcb, tAVCT_LCB_EVT *p_data)
+{
+    tAVCT_CCB   *p_ccb = &avct_cb.ccb[0];
+    int         i;
+    BOOLEAN     bind = FALSE;
+
+    for (i = 0; i < AVCT_NUM_CONN; i++, p_ccb++)
+    {
+        /* if ccb allocated and */
+        if (p_ccb->allocated)
+        {
+            /* if bound to this lcb send connect confirm event */
+            if (p_ccb->p_lcb == p_lcb)
+            {
+                bind = TRUE;
+                L2CA_SetTxPriority(p_lcb->ch_lcid, L2CAP_CHNL_PRIORITY_HIGH);
+                p_ccb->cc.p_ctrl_cback(avct_ccb_to_idx(p_ccb), AVCT_CONNECT_CFM_EVT,
+                                       0, p_lcb->peer_addr);
+            }
+            /* if unbound acceptor and lcb doesn't already have a ccb for this PID */
+            else if ((p_ccb->p_lcb == NULL) && (p_ccb->cc.role == AVCT_ACP) &&
+                     (avct_lcb_has_pid(p_lcb, p_ccb->cc.pid) == NULL))
+            {
+                /* bind ccb to lcb and send connect ind event */
+                bind = TRUE;
+                p_ccb->p_lcb = p_lcb;
+                L2CA_SetTxPriority(p_lcb->ch_lcid, L2CAP_CHNL_PRIORITY_HIGH);
+                p_ccb->cc.p_ctrl_cback(avct_ccb_to_idx(p_ccb), AVCT_CONNECT_IND_EVT,
+                                    0, p_lcb->peer_addr);
+            }
+        }
+    }
+
+    /* if no ccbs bound to this lcb, disconnect */
+    if (bind == FALSE)
+    {
+        avct_lcb_event(p_lcb, AVCT_LCB_INT_CLOSE_EVT, p_data);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         avct_lcb_open_fail
+**
+** Description      L2CAP channel open attempt failed.  Deallocate any ccbs
+**                  on this lcb and send connect confirm event with failure.
+**
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avct_lcb_open_fail(tAVCT_LCB *p_lcb, tAVCT_LCB_EVT *p_data)
+{
+    tAVCT_CCB           *p_ccb = &avct_cb.ccb[0];
+    int                 i;
+
+    for (i = 0; i < AVCT_NUM_CONN; i++, p_ccb++)
+    {
+        if (p_ccb->allocated && (p_ccb->p_lcb == p_lcb))
+        {
+            avct_ccb_dealloc(p_ccb, AVCT_CONNECT_CFM_EVT,
+                             p_data->result, p_lcb->peer_addr);
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         avct_lcb_close_ind
+**
+** Description      L2CAP channel closed by peer.  Deallocate any initiator
+**                  ccbs on this lcb and send disconnect ind event.
+**
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avct_lcb_close_ind(tAVCT_LCB *p_lcb, tAVCT_LCB_EVT *p_data)
+{
+    tAVCT_CCB           *p_ccb = &avct_cb.ccb[0];
+    int                 i;
+    UNUSED(p_data);
+
+    for (i = 0; i < AVCT_NUM_CONN; i++, p_ccb++)
+    {
+        if (p_ccb->allocated && (p_ccb->p_lcb == p_lcb))
+        {
+            if (p_ccb->cc.role == AVCT_INT)
+            {
+                avct_ccb_dealloc(p_ccb, AVCT_DISCONNECT_IND_EVT,
+                                 0, p_lcb->peer_addr);
+            }
+            else
+            {
+                p_ccb->p_lcb = NULL;
+                (*p_ccb->cc.p_ctrl_cback)(avct_ccb_to_idx(p_ccb), AVCT_DISCONNECT_IND_EVT,
+                                          0, p_lcb->peer_addr);
+            }
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         avct_lcb_close_cfm
+**
+** Description      L2CAP channel closed by us.  Deallocate any initiator
+**                  ccbs on this lcb and send disconnect ind or cfm event.
+**
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avct_lcb_close_cfm(tAVCT_LCB *p_lcb, tAVCT_LCB_EVT *p_data)
+{
+    tAVCT_CCB           *p_ccb = &avct_cb.ccb[0];
+    int                 i;
+    UINT8               event;
+
+    for (i = 0; i < AVCT_NUM_CONN; i++, p_ccb++)
+    {
+        if (p_ccb->allocated && (p_ccb->p_lcb == p_lcb))
+        {
+            /* if this ccb initiated close send disconnect cfm otherwise ind */
+            if (p_ccb->ch_close)
+            {
+                p_ccb->ch_close = FALSE;
+                event = AVCT_DISCONNECT_CFM_EVT;
+            }
+            else
+            {
+                event = AVCT_DISCONNECT_IND_EVT;
+            }
+
+            if (p_ccb->cc.role == AVCT_INT)
+            {
+                avct_ccb_dealloc(p_ccb, event, p_data->result, p_lcb->peer_addr);
+            }
+            else
+            {
+                p_ccb->p_lcb = NULL;
+                (*p_ccb->cc.p_ctrl_cback)(avct_ccb_to_idx(p_ccb), event,
+                                       p_data->result, p_lcb->peer_addr);
+            }
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         avct_lcb_bind_conn
+**
+** Description      Bind ccb to lcb and send connect cfm event.
+**
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avct_lcb_bind_conn(tAVCT_LCB *p_lcb, tAVCT_LCB_EVT *p_data)
+{
+    p_data->p_ccb->p_lcb = p_lcb;
+    (*p_data->p_ccb->cc.p_ctrl_cback)(avct_ccb_to_idx(p_data->p_ccb),
+                                      AVCT_CONNECT_CFM_EVT, 0, p_lcb->peer_addr);
+}
+
+/*******************************************************************************
+**
+** Function         avct_lcb_chk_disc
+**
+** Description      A ccb wants to close; if it is the last ccb on this lcb,
+**                  close channel.  Otherwise just deallocate and call
+**                  callback.
+**
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avct_lcb_chk_disc(tAVCT_LCB *p_lcb, tAVCT_LCB_EVT *p_data)
+{
+    AVCT_TRACE_WARNING("avct_lcb_chk_disc");
+#if (AVCT_BROWSE_INCLUDED == TRUE)
+    avct_close_bcb(p_lcb, p_data);
+#endif
+    if (avct_lcb_last_ccb(p_lcb, p_data->p_ccb))
+    {
+        AVCT_TRACE_WARNING("closing");
+        p_data->p_ccb->ch_close = TRUE;
+        avct_lcb_event(p_lcb, AVCT_LCB_INT_CLOSE_EVT, p_data);
+    }
+    else
+    {
+        AVCT_TRACE_WARNING("dealloc ccb");
+        avct_lcb_unbind_disc(p_lcb, p_data);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         avct_lcb_chnl_disc
+**
+** Description      Disconnect L2CAP channel.
+**
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avct_lcb_chnl_disc(tAVCT_LCB *p_lcb, tAVCT_LCB_EVT *p_data)
+{
+    UNUSED(p_data);
+
+    L2CA_DisconnectReq(p_lcb->ch_lcid);
+}
+
+/*******************************************************************************
+**
+** Function         avct_lcb_bind_fail
+**
+** Description      Deallocate ccb and call callback with connect event
+**                  with failure result.
+**
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avct_lcb_bind_fail(tAVCT_LCB *p_lcb, tAVCT_LCB_EVT *p_data)
+{
+    UNUSED(p_lcb);
+
+    avct_ccb_dealloc(p_data->p_ccb, AVCT_CONNECT_CFM_EVT, AVCT_RESULT_FAIL, NULL);
+}
+
+/*******************************************************************************
+**
+** Function         avct_lcb_cong_ind
+**
+** Description      Handle congestion indication from L2CAP.
+**
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avct_lcb_cong_ind(tAVCT_LCB *p_lcb, tAVCT_LCB_EVT *p_data)
+{
+    tAVCT_CCB           *p_ccb = &avct_cb.ccb[0];
+    int                 i;
+    UINT8               event;
+    BT_HDR          *p_buf;
+
+    /* set event */
+    event = (p_data->cong) ? AVCT_CONG_IND_EVT : AVCT_UNCONG_IND_EVT;
+    p_lcb->cong = p_data->cong;
+    if (p_lcb->cong == FALSE && !fixed_queue_is_empty(p_lcb->tx_q))
+    {
+        while (!p_lcb->cong &&
+               (p_buf = (BT_HDR *)fixed_queue_try_dequeue(p_lcb->tx_q)) != NULL)
+        {
+            if (L2CA_DataWrite(p_lcb->ch_lcid, p_buf) == L2CAP_DW_CONGESTED)
+            {
+                p_lcb->cong = TRUE;
+            }
+        }
+    }
+
+    /* send event to all ccbs on this lcb */
+    for (i = 0; i < AVCT_NUM_CONN; i++, p_ccb++)
+    {
+        if (p_ccb->allocated && (p_ccb->p_lcb == p_lcb))
+        {
+            (*p_ccb->cc.p_ctrl_cback)(avct_ccb_to_idx(p_ccb), event, 0, p_lcb->peer_addr);
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         avct_lcb_discard_msg
+**
+** Description      Discard a message sent in from the API.
+**
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avct_lcb_discard_msg(tAVCT_LCB *p_lcb, tAVCT_LCB_EVT *p_data)
+{
+    UNUSED(p_lcb);
+
+    AVCT_TRACE_WARNING("Dropping message");
+    osi_free_and_reset((void **)&p_data->ul_msg.p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         avct_lcb_send_msg
+**
+** Description      Build and send an AVCTP message.
+**
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avct_lcb_send_msg(tAVCT_LCB *p_lcb, tAVCT_LCB_EVT *p_data)
+{
+    UINT16          curr_msg_len;
+    UINT8           pkt_type;
+    UINT8           hdr_len;
+    UINT8           *p;
+    UINT8           nosp = 0;       /* number of subsequent packets */
+    UINT16          temp;
+    UINT16          buf_size = p_lcb->peer_mtu + L2CAP_MIN_OFFSET + BT_HDR_SIZE;
+
+
+    /* store msg len */
+    curr_msg_len = p_data->ul_msg.p_buf->len;
+
+    /* initialize packet type and other stuff */
+    if (curr_msg_len <= (p_lcb->peer_mtu - AVCT_HDR_LEN_SINGLE))
+    {
+        pkt_type = AVCT_PKT_TYPE_SINGLE;
+    }
+    else
+    {
+        pkt_type = AVCT_PKT_TYPE_START;
+        temp = (curr_msg_len + AVCT_HDR_LEN_START - p_lcb->peer_mtu);
+        nosp = temp / (p_lcb->peer_mtu - 1) + 1;
+        if ( (temp % (p_lcb->peer_mtu - 1)) != 0)
+            nosp++;
+    }
+
+    /* while we haven't sent all packets */
+    while (curr_msg_len != 0) {
+        BT_HDR *p_buf;
+
+        /* set header len */
+        hdr_len = avct_lcb_pkt_type_len[pkt_type];
+
+        /* if remaining msg must be fragmented */
+        if (p_data->ul_msg.p_buf->len > (p_lcb->peer_mtu - hdr_len))
+        {
+            /* get a new buffer for fragment we are sending */
+            p_buf = (BT_HDR *)osi_malloc(buf_size);
+
+            /* copy portion of data from current message to new buffer */
+            p_buf->offset = L2CAP_MIN_OFFSET + hdr_len;
+            p_buf->len = p_lcb->peer_mtu - hdr_len;
+
+            memcpy((UINT8 *)(p_buf + 1) + p_buf->offset,
+                   (UINT8 *)(p_data->ul_msg.p_buf + 1) + p_data->ul_msg.p_buf->offset, p_buf->len);
+
+            p_data->ul_msg.p_buf->offset += p_buf->len;
+            p_data->ul_msg.p_buf->len -= p_buf->len;
+        }
+        else
+        {
+            p_buf = p_data->ul_msg.p_buf;
+        }
+
+        curr_msg_len -= p_buf->len;
+
+        /* set up to build header */
+        p_buf->len += hdr_len;
+        p_buf->offset -= hdr_len;
+        p = (UINT8 *)(p_buf + 1) + p_buf->offset;
+
+        /* build header */
+        AVCT_BLD_HDR(p, p_data->ul_msg.label, pkt_type, p_data->ul_msg.cr);
+        if (pkt_type == AVCT_PKT_TYPE_START)
+        {
+            UINT8_TO_STREAM(p, nosp);
+        }
+        if ((pkt_type == AVCT_PKT_TYPE_START) || (pkt_type == AVCT_PKT_TYPE_SINGLE))
+        {
+            UINT16_TO_BE_STREAM(p, p_data->ul_msg.p_ccb->cc.pid);
+        }
+
+        if (p_lcb->cong == TRUE)
+        {
+            fixed_queue_enqueue(p_lcb->tx_q, p_buf);
+        }
+
+        /* send message to L2CAP */
+        else
+        {
+            if (L2CA_DataWrite(p_lcb->ch_lcid, p_buf) == L2CAP_DW_CONGESTED)
+            {
+                p_lcb->cong = TRUE;
+            }
+        }
+
+        /* update pkt type for next packet */
+        if (curr_msg_len > (p_lcb->peer_mtu - AVCT_HDR_LEN_END))
+        {
+            pkt_type = AVCT_PKT_TYPE_CONT;
+        }
+        else
+        {
+            pkt_type = AVCT_PKT_TYPE_END;
+        }
+    }
+    AVCT_TRACE_DEBUG ("avct_lcb_send_msg tx_q_count:%d",
+                      fixed_queue_length(p_lcb->tx_q));
+    return;
+}
+
+/*******************************************************************************
+**
+** Function         avct_lcb_free_msg_ind
+**
+** Description      Discard an incoming AVCTP message.
+**
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avct_lcb_free_msg_ind(tAVCT_LCB *p_lcb, tAVCT_LCB_EVT *p_data)
+{
+    UNUSED(p_lcb);
+
+    if (p_data == NULL)
+        return;
+
+    osi_free_and_reset((void **)&p_data->p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         avct_lcb_msg_ind
+**
+** Description      Handle an incoming AVCTP message.
+**
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avct_lcb_msg_ind(tAVCT_LCB *p_lcb, tAVCT_LCB_EVT *p_data)
+{
+    UINT8       *p;
+    UINT8       label, type, cr_ipid;
+    UINT16      pid;
+    tAVCT_CCB   *p_ccb;
+
+    /* this p_buf is to be reported through p_msg_cback. The layer_specific
+     * needs to be set properly to indicate that it is received through
+     * control channel */
+    p_data->p_buf->layer_specific = AVCT_DATA_CTRL;
+
+    /* reassemble message; if no message available (we received a fragment) return */
+    if ((p_data->p_buf = avct_lcb_msg_asmbl(p_lcb, p_data->p_buf)) == NULL)
+    {
+        return;
+    }
+
+    p = (UINT8 *)(p_data->p_buf + 1) + p_data->p_buf->offset;
+
+    /* parse header byte */
+    AVCT_PRS_HDR(p, label, type, cr_ipid);
+    UNUSED(type);
+
+    /* check for invalid cr_ipid */
+    if (cr_ipid == AVCT_CR_IPID_INVALID)
+    {
+        AVCT_TRACE_WARNING("Invalid cr_ipid", cr_ipid);
+        osi_free_and_reset((void **)&p_data->p_buf);
+        return;
+    }
+
+    /* parse and lookup PID */
+    BE_STREAM_TO_UINT16(pid, p);
+    if ((p_ccb = avct_lcb_has_pid(p_lcb, pid)) != NULL)
+    {
+        /* PID found; send msg up, adjust bt hdr and call msg callback */
+        p_data->p_buf->offset += AVCT_HDR_LEN_SINGLE;
+        p_data->p_buf->len -= AVCT_HDR_LEN_SINGLE;
+        (*p_ccb->cc.p_msg_cback)(avct_ccb_to_idx(p_ccb), label, cr_ipid, p_data->p_buf);
+    }
+    else
+    {
+        /* PID not found; drop message */
+        AVCT_TRACE_WARNING("No ccb for PID=%x", pid);
+        osi_free_and_reset((void **)&p_data->p_buf);
+
+        /* if command send reject */
+        if (cr_ipid == AVCT_CMD)
+        {
+            BT_HDR *p_buf = (BT_HDR *)osi_malloc(AVCT_CMD_BUF_SIZE);
+            p_buf->len = AVCT_HDR_LEN_SINGLE;
+            p_buf->offset = AVCT_MSG_OFFSET - AVCT_HDR_LEN_SINGLE;
+            p = (UINT8 *)(p_buf + 1) + p_buf->offset;
+            AVCT_BLD_HDR(p, label, AVCT_PKT_TYPE_SINGLE, AVCT_REJ);
+            UINT16_TO_BE_STREAM(p, pid);
+            L2CA_DataWrite(p_lcb->ch_lcid, p_buf);
+        }
+    }
+}
diff --git a/rtkbt/code/bt/stack/avdt/avdt_ad.c b/rtkbt/code/bt/stack/avdt/avdt_ad.c
new file mode 100755
index 0000000..f35162a
--- /dev/null
+++ b/rtkbt/code/bt/stack/avdt/avdt_ad.c
@@ -0,0 +1,640 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2002-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This module contains the AVDTP adaption layer.
+ *
+ ******************************************************************************/
+
+#include <assert.h>
+#include <string.h>
+
+#include "bt_types.h"
+#include "bt_target.h"
+#include "bt_utils.h"
+#include "avdt_api.h"
+#include "avdtc_api.h"
+#include "avdt_int.h"
+#include "l2c_api.h"
+#include "l2cdefs.h"
+
+
+/*******************************************************************************
+**
+** Function         avdt_ad_type_to_tcid
+**
+** Description      Derives the TCID from the channel type and SCB.
+**
+**
+** Returns          TCID value.
+**
+*******************************************************************************/
+UINT8 avdt_ad_type_to_tcid(UINT8 type, tAVDT_SCB *p_scb)
+{
+    UINT8 scb_idx;
+
+    if (type == AVDT_CHAN_SIG)
+    {
+        return 0;
+    }
+    else
+    {
+        scb_idx = avdt_scb_to_hdl(p_scb) - 1;
+        /*
+        AVDT_TRACE_DEBUG("type: %d, tcid: %d", type, ((scb_idx * (AVDT_CHAN_NUM_TYPES - 1)) + type));
+        */
+        return ((scb_idx * (AVDT_CHAN_NUM_TYPES - 1)) + type);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         avdt_ad_tcid_to_type
+**
+** Description      Derives the channel type from the TCID.
+**
+**
+** Returns          Channel type value.
+**
+*******************************************************************************/
+static UINT8 avdt_ad_tcid_to_type(UINT8 tcid)
+{
+    UINT8 type;
+
+    if (tcid == 0)
+    {
+        type = AVDT_CHAN_SIG;
+    }
+    else
+    {
+        /* tcid translates to type based on number of channels, as follows:
+        ** only media channel   :  tcid=1,2,3,4,5,6...  type=1,1,1,1,1,1...
+        ** media and report     :  tcid=1,2,3,4,5,6...  type=1,2,1,2,1,2...
+        ** media, report, recov :  tcid=1,2,3,4,5,6...  type=1,2,3,1,2,3...
+        */
+        type = ((tcid + AVDT_CHAN_NUM_TYPES - 2) % (AVDT_CHAN_NUM_TYPES - 1)) + 1;
+    }
+    AVDT_TRACE_DEBUG("tcid: %d, type: %d", tcid, type);
+    return type;
+}
+
+
+/*******************************************************************************
+**
+** Function         avdt_ad_init
+**
+** Description      Initialize adaption layer.
+**
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_ad_init(void)
+{
+    int             i;
+    tAVDT_TC_TBL    *p_tbl = avdt_cb.ad.tc_tbl;
+    memset(&avdt_cb.ad, 0, sizeof(tAVDT_AD));
+
+    /* make sure the peer_mtu is a valid value */
+    for (i = 0; i < AVDT_NUM_TC_TBL; i++, p_tbl++)
+    {
+        p_tbl->peer_mtu = L2CAP_DEFAULT_MTU;
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         avdt_ad_tc_tbl_by_st
+**
+** Description      Find adaption layer transport channel table entry matching
+**                  the given state.
+**
+**
+** Returns          Pointer to matching entry.  For control channel it returns
+**                  the matching entry.  For media or other it returns the
+**                  first matching entry (there could be more than one).
+**
+*******************************************************************************/
+tAVDT_TC_TBL *avdt_ad_tc_tbl_by_st(UINT8 type, tAVDT_CCB *p_ccb, UINT8 state)
+{
+    int             i;
+    tAVDT_TC_TBL    *p_tbl = avdt_cb.ad.tc_tbl;
+    UINT8           ccb_idx;
+
+    if (p_ccb == NULL)
+    {
+        /* resending security req */
+        for (i = 0; i < AVDT_NUM_TC_TBL; i++, p_tbl++)
+        {
+            /* must be AVDT_CHAN_SIG - tcid always zero */
+            if ((p_tbl->tcid == 0) &&
+                (p_tbl->state == state))
+            {
+                break;
+            }
+        }
+    }
+    else
+    {
+        ccb_idx = avdt_ccb_to_idx(p_ccb);
+
+        for (i = 0; i < AVDT_NUM_TC_TBL; i++, p_tbl++)
+        {
+            if (type == AVDT_CHAN_SIG)
+            {
+                /* if control channel, tcid always zero */
+                if ((p_tbl->tcid == 0) &&
+                    (p_tbl->ccb_idx == ccb_idx) &&
+                    (p_tbl->state == state))
+                {
+                    break;
+                }
+            }
+            else
+            {
+                /* if other channel, tcid is always > zero */
+                if ((p_tbl->tcid > 0) &&
+                    (p_tbl->ccb_idx == ccb_idx) &&
+                    (p_tbl->state == state))
+                {
+                    break;
+                }
+            }
+        }
+    }
+
+    /* if nothing found return null */
+    if (i == AVDT_NUM_TC_TBL)
+    {
+        p_tbl = NULL;
+    }
+
+    return p_tbl;
+}
+
+
+/*******************************************************************************
+**
+** Function         avdt_ad_tc_tbl_by_lcid
+**
+** Description      Find adaption layer transport channel table entry by LCID.
+**
+**
+** Returns          Pointer to entry.
+**
+*******************************************************************************/
+tAVDT_TC_TBL *avdt_ad_tc_tbl_by_lcid(UINT16 lcid)
+{
+    UINT8 idx;
+
+    idx = avdt_cb.ad.lcid_tbl[lcid - L2CAP_BASE_APPL_CID];
+
+    if (idx < AVDT_NUM_TC_TBL)
+    {
+        return &avdt_cb.ad.tc_tbl[idx];
+    }
+    else
+    {
+        return NULL;
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         avdt_ad_tc_tbl_by_type
+**
+** Description      This function retrieves the transport channel table entry
+**                  for a particular channel.
+**
+**
+** Returns          Pointer to transport channel table entry.
+**
+*******************************************************************************/
+tAVDT_TC_TBL *avdt_ad_tc_tbl_by_type(UINT8 type, tAVDT_CCB *p_ccb, tAVDT_SCB *p_scb)
+{
+    UINT8           tcid;
+    int             i;
+    tAVDT_TC_TBL    *p_tbl = avdt_cb.ad.tc_tbl;
+    UINT8           ccb_idx = avdt_ccb_to_idx(p_ccb);
+
+    /* get tcid from type, scb */
+    tcid = avdt_ad_type_to_tcid(type, p_scb);
+
+    for (i = 0; i < AVDT_NUM_TC_TBL; i++, p_tbl++)
+    {
+        if ((p_tbl->tcid == tcid) && (p_tbl->ccb_idx == ccb_idx))
+        {
+            break;
+        }
+    }
+
+    assert(i != AVDT_NUM_TC_TBL);
+
+    return p_tbl;
+}
+
+
+/*******************************************************************************
+**
+** Function         avdt_ad_tc_tbl_alloc
+**
+** Description      Allocate an entry in the traffic channel table.
+**
+**
+** Returns          Pointer to entry.
+**
+*******************************************************************************/
+tAVDT_TC_TBL *avdt_ad_tc_tbl_alloc(tAVDT_CCB *p_ccb)
+{
+    int             i;
+    tAVDT_TC_TBL    *p_tbl = avdt_cb.ad.tc_tbl;
+
+    /* find next free entry in tc table */
+    for (i = 0; i < AVDT_NUM_TC_TBL; i++, p_tbl++)
+    {
+        if (p_tbl->state == AVDT_AD_ST_UNUSED)
+        {
+            break;
+        }
+    }
+
+    /* sanity check */
+    assert(i != AVDT_NUM_TC_TBL);
+
+
+    /* initialize entry */
+    p_tbl->peer_mtu = L2CAP_DEFAULT_MTU;
+    p_tbl->cfg_flags = 0;
+    p_tbl->ccb_idx = avdt_ccb_to_idx(p_ccb);
+    p_tbl->state = AVDT_AD_ST_IDLE;
+    return p_tbl;
+
+}
+
+/*******************************************************************************
+**
+** Function         avdt_ad_tc_tbl_to_idx
+**
+** Description      Convert a transport channel table entry to an index.
+**
+**
+** Returns          Index value.
+**
+*******************************************************************************/
+UINT8 avdt_ad_tc_tbl_to_idx(tAVDT_TC_TBL *p_tbl)
+{
+    AVDT_TRACE_DEBUG("avdt_ad_tc_tbl_to_idx: %d", (p_tbl - avdt_cb.ad.tc_tbl));
+    /* use array arithmetic to determine index */
+    return (UINT8) (p_tbl - avdt_cb.ad.tc_tbl);
+}
+
+/*******************************************************************************
+**
+** Function         avdt_ad_tc_close_ind
+**
+** Description      This function is called by the L2CAP interface when the
+**                  L2CAP channel is closed.  It looks up the CCB or SCB for
+**                  the channel and sends it a close event.  The reason
+**                  parameter is the same value passed by the L2CAP
+**                  callback function.
+**
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_ad_tc_close_ind(tAVDT_TC_TBL *p_tbl, UINT16 reason)
+{
+    tAVDT_CCB   *p_ccb;
+    tAVDT_SCB   *p_scb;
+    tAVDT_SCB_TC_CLOSE  close;
+    UNUSED(reason);
+
+    close.old_tc_state = p_tbl->state;
+    /* clear avdt_ad_tc_tbl entry */
+    p_tbl->state = AVDT_AD_ST_UNUSED;
+    p_tbl->cfg_flags = 0;
+    p_tbl->peer_mtu = L2CAP_DEFAULT_MTU;
+
+    AVDT_TRACE_DEBUG("avdt_ad_tc_close_ind tcid: %d, old: %d",
+        p_tbl->tcid, close.old_tc_state);
+    /* if signaling channel, notify ccb that channel open */
+    if (p_tbl->tcid == 0)
+    {
+        p_ccb = avdt_ccb_by_idx(p_tbl->ccb_idx);
+        avdt_ccb_event(p_ccb, AVDT_CCB_LL_CLOSE_EVT, NULL);
+    }
+    /* if media or other channel, notify scb that channel close */
+    else
+    {
+        /* look up scb in stream routing table by ccb, tcid */
+        p_scb = avdt_scb_by_hdl(avdt_cb.ad.rt_tbl[p_tbl->ccb_idx][p_tbl->tcid].scb_hdl);
+        if (p_scb != NULL)
+        {
+            close.tcid = p_tbl->tcid;
+            close.type = avdt_ad_tcid_to_type(p_tbl->tcid);
+            avdt_scb_event(p_scb, AVDT_SCB_TC_CLOSE_EVT, (tAVDT_SCB_EVT *)&close);
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         avdt_ad_tc_open_ind
+**
+** Description      This function is called by the L2CAP interface when
+**                  the L2CAP channel is opened.  It looks up the CCB or SCB
+**                  for the channel and sends it an open event.
+**
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_ad_tc_open_ind(tAVDT_TC_TBL *p_tbl)
+{
+    tAVDT_CCB   *p_ccb;
+    tAVDT_SCB   *p_scb;
+    tAVDT_OPEN  open;
+    tAVDT_EVT_HDR evt;
+
+    p_tbl->state = AVDT_AD_ST_OPEN;
+
+    /* if signaling channel, notify ccb that channel open */
+    if (p_tbl->tcid == 0)
+    {
+        /* set the signal channel to use high priority within the ACL link */
+        L2CA_SetTxPriority(avdt_cb.ad.rt_tbl[p_tbl->ccb_idx][AVDT_CHAN_SIG].lcid, L2CAP_CHNL_PRIORITY_HIGH);
+
+        p_ccb = avdt_ccb_by_idx(p_tbl->ccb_idx);
+        /* use err_param to indicate the role of connection.
+         * AVDT_ACP, if ACP */
+        evt.err_param = AVDT_INT;
+        if(p_tbl->cfg_flags & AVDT_L2C_CFG_CONN_ACP)
+        {
+            evt.err_param = AVDT_ACP;
+        }
+        avdt_ccb_event(p_ccb, AVDT_CCB_LL_OPEN_EVT, (tAVDT_CCB_EVT *)&evt);
+    }
+    /* if media or other channel, notify scb that channel open */
+    else
+    {
+        /* look up scb in stream routing table by ccb, tcid */
+        p_scb = avdt_scb_by_hdl(avdt_cb.ad.rt_tbl[p_tbl->ccb_idx][p_tbl->tcid].scb_hdl);
+
+        /* put lcid in event data */
+        if (p_scb != NULL)
+        {
+            open.peer_mtu = p_tbl->peer_mtu;
+            open.lcid = avdt_cb.ad.rt_tbl[p_tbl->ccb_idx][p_tbl->tcid].lcid;
+            open.hdr.err_code = avdt_ad_tcid_to_type(p_tbl->tcid);
+            avdt_scb_event(p_scb, AVDT_SCB_TC_OPEN_EVT, (tAVDT_SCB_EVT *) &open);
+        }
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         avdt_ad_tc_cong_ind
+**
+** Description      This function is called by the L2CAP interface layer when
+**                  L2CAP calls the congestion callback.  It looks up the CCB
+**                  or SCB for the channel and sends it a congestion event.
+**                  The is_congested parameter is the same value passed by
+**                  the L2CAP callback function.
+**
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_ad_tc_cong_ind(tAVDT_TC_TBL *p_tbl, BOOLEAN is_congested)
+{
+    tAVDT_CCB   *p_ccb;
+    tAVDT_SCB   *p_scb;
+
+    /* if signaling channel, notify ccb of congestion */
+    if (p_tbl->tcid == 0)
+    {
+        p_ccb = avdt_ccb_by_idx(p_tbl->ccb_idx);
+        avdt_ccb_event(p_ccb, AVDT_CCB_LL_CONG_EVT, (tAVDT_CCB_EVT *) &is_congested);
+    }
+    /* if media or other channel, notify scb that channel open */
+    else
+    {
+        /* look up scb in stream routing table by ccb, tcid */
+        p_scb = avdt_scb_by_hdl(avdt_cb.ad.rt_tbl[p_tbl->ccb_idx][p_tbl->tcid].scb_hdl);
+        if (p_scb != NULL)
+        {
+            avdt_scb_event(p_scb, AVDT_SCB_TC_CONG_EVT, (tAVDT_SCB_EVT *) &is_congested);
+        }
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         avdt_ad_tc_data_ind
+**
+** Description      This function is called by the L2CAP interface layer when
+**                  incoming data is received from L2CAP.  It looks up the CCB
+**                  or SCB for the channel and routes the data accordingly.
+**
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_ad_tc_data_ind(tAVDT_TC_TBL *p_tbl, BT_HDR *p_buf)
+{
+    tAVDT_CCB   *p_ccb;
+    tAVDT_SCB   *p_scb;
+
+    /* store type (media, recovery, reporting) */
+    p_buf->layer_specific = avdt_ad_tcid_to_type(p_tbl->tcid);
+
+
+    /* if signaling channel, handle control message */
+    if (p_tbl->tcid == 0)
+    {
+        p_ccb = avdt_ccb_by_idx(p_tbl->ccb_idx);
+        avdt_msg_ind(p_ccb, p_buf);
+    }
+    /* if media or other channel, send event to scb */
+    else
+    {
+        p_scb = avdt_scb_by_hdl(avdt_cb.ad.rt_tbl[p_tbl->ccb_idx][p_tbl->tcid].scb_hdl);
+        if (p_scb != NULL)
+        {
+            avdt_scb_event(p_scb, AVDT_SCB_TC_DATA_EVT, (tAVDT_SCB_EVT *) &p_buf);
+        }
+        else
+        {
+            osi_free(p_buf);
+            AVDT_TRACE_ERROR(" avdt_ad_tc_data_ind buffer freed");
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         avdt_ad_write_req
+**
+** Description      This function is called by a CCB or SCB to send data to a
+**                  transport channel.  It looks up the LCID of the channel
+**                  based on the type, CCB, and SCB (if present).  Then it
+**                  passes the data to L2CA_DataWrite().
+**
+**
+** Returns          AVDT_AD_SUCCESS, if data accepted, else FALSE
+**                  AVDT_AD_CONGESTED, if data accepted and the channel is congested
+**                  AVDT_AD_FAILED, if error
+**
+*******************************************************************************/
+UINT8 avdt_ad_write_req(UINT8 type, tAVDT_CCB *p_ccb, tAVDT_SCB *p_scb, BT_HDR *p_buf)
+{
+    UINT8   tcid;
+
+    /* get tcid from type, scb */
+    tcid = avdt_ad_type_to_tcid(type, p_scb);
+
+
+    return L2CA_DataWrite(avdt_cb.ad.rt_tbl[avdt_ccb_to_idx(p_ccb)][tcid].lcid, p_buf);
+}
+
+
+/*******************************************************************************
+**
+** Function         avdt_ad_open_req
+**
+** Description      This function is called by a CCB or SCB to open a transport
+**                  channel.  This function allocates and initializes a
+**                  transport channel table entry.  The channel can be opened
+**                  in two roles:  as an initiator or acceptor.  When opened
+**                  as an initiator the function will start an L2CAP connection.
+**                  When opened as an acceptor the function simply configures
+**                  the table entry to listen for an incoming channel.
+**
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_ad_open_req(UINT8 type, tAVDT_CCB *p_ccb, tAVDT_SCB *p_scb, UINT8 role)
+{
+    tAVDT_TC_TBL    *p_tbl;
+    UINT16          lcid;
+
+    if((p_tbl = avdt_ad_tc_tbl_alloc(p_ccb)) == NULL)
+    {
+        AVDT_TRACE_ERROR("avdt_ad_open_req: Cannot allocate p_tbl");
+        return;
+    }
+
+
+    p_tbl->tcid = avdt_ad_type_to_tcid(type, p_scb);
+    AVDT_TRACE_DEBUG("avdt_ad_open_req: type: %d, role: %d, tcid:%d",
+        type, role, p_tbl->tcid);
+
+    if (type == AVDT_CHAN_SIG)
+    {
+        /* if signaling, get mtu from registration control block */
+        p_tbl->my_mtu = avdt_cb.rcb.ctrl_mtu;
+        p_tbl->my_flush_to = L2CAP_DEFAULT_FLUSH_TO;
+    }
+    else
+    {
+        /* otherwise get mtu from scb */
+        p_tbl->my_mtu = p_scb->cs.mtu;
+        p_tbl->my_flush_to = p_scb->cs.flush_to;
+
+        /* also set scb_hdl in rt_tbl */
+        avdt_cb.ad.rt_tbl[avdt_ccb_to_idx(p_ccb)][p_tbl->tcid].scb_hdl = avdt_scb_to_hdl(p_scb);
+        AVDT_TRACE_DEBUG("avdt_cb.ad.rt_tbl[%d][%d].scb_hdl = %d",
+            avdt_ccb_to_idx(p_ccb), p_tbl->tcid,
+            avdt_scb_to_hdl(p_scb));
+    }
+
+    /* if we're acceptor, we're done; just sit back and listen */
+    if (role == AVDT_ACP)
+    {
+        p_tbl->state = AVDT_AD_ST_ACP;
+    }
+    /* else we're inititator, start the L2CAP connection */
+    else
+    {
+        p_tbl->state = AVDT_AD_ST_CONN;
+
+        /* call l2cap connect req */
+        if ((lcid = L2CA_ConnectReq(AVDT_PSM, p_ccb->peer_addr)) != 0)
+        {
+            /* if connect req ok, store tcid in lcid table  */
+            avdt_cb.ad.lcid_tbl[lcid - L2CAP_BASE_APPL_CID] = avdt_ad_tc_tbl_to_idx(p_tbl);
+            AVDT_TRACE_DEBUG("avdt_cb.ad.lcid_tbl[%d] = %d",
+                (lcid - L2CAP_BASE_APPL_CID), avdt_ad_tc_tbl_to_idx(p_tbl));
+
+            avdt_cb.ad.rt_tbl[avdt_ccb_to_idx(p_ccb)][p_tbl->tcid].lcid = lcid;
+            AVDT_TRACE_DEBUG("avdt_cb.ad.rt_tbl[%d][%d].lcid = 0x%x",
+                avdt_ccb_to_idx(p_ccb), p_tbl->tcid,
+                lcid);
+        }
+        else
+        {
+            /* if connect req failed, call avdt_ad_tc_close_ind() */
+            avdt_ad_tc_close_ind(p_tbl, 0);
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         avdt_ad_close_req
+**
+** Description      This function is called by a CCB or SCB to close a
+**                  transport channel.  The function looks up the LCID for the
+**                  channel and calls L2CA_DisconnectReq().
+**
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_ad_close_req(UINT8 type, tAVDT_CCB *p_ccb, tAVDT_SCB *p_scb)
+{
+    UINT8           tcid;
+    tAVDT_TC_TBL    *p_tbl;
+
+    p_tbl = avdt_ad_tc_tbl_by_type(type, p_ccb, p_scb);
+    AVDT_TRACE_DEBUG("avdt_ad_close_req state: %d", p_tbl->state);
+
+    switch(p_tbl->state)
+    {
+    case AVDT_AD_ST_UNUSED:
+        /* probably for reporting */
+        break;
+    case AVDT_AD_ST_ACP:
+        /* if we're listening on this channel, send ourselves a close ind */
+        avdt_ad_tc_close_ind(p_tbl, 0);
+        break;
+    default:
+        /* get tcid from type, scb */
+        tcid = avdt_ad_type_to_tcid(type, p_scb);
+
+        /* call l2cap disconnect req */
+        L2CA_DisconnectReq(avdt_cb.ad.rt_tbl[avdt_ccb_to_idx(p_ccb)][tcid].lcid);
+    }
+}
+
diff --git a/rtkbt/code/bt/stack/avdt/avdt_api.c b/rtkbt/code/bt/stack/avdt/avdt_api.c
new file mode 100755
index 0000000..98ef5f7
--- /dev/null
+++ b/rtkbt/code/bt/stack/avdt/avdt_api.c
@@ -0,0 +1,1323 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2002-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This module contains API of the audio/video distribution transport
+ *  protocol.
+ *
+ ******************************************************************************/
+
+#include <string.h>
+#include "bt_types.h"
+#include "bt_target.h"
+#include "avdt_api.h"
+#include "avdtc_api.h"
+#include "avdt_int.h"
+#include "l2c_api.h"
+#include "btm_api.h"
+#include "btu.h"
+
+
+/* Control block for AVDT */
+#if AVDT_DYNAMIC_MEMORY == FALSE
+tAVDT_CB avdt_cb;
+#endif
+
+void avdt_ccb_idle_ccb_timer_timeout(void *data)
+{
+    tAVDT_CCB *p_ccb = (tAVDT_CCB *)data;
+    uint8_t avdt_event = AVDT_CCB_IDLE_TOUT_EVT;
+    uint8_t err_code = AVDT_ERR_TIMEOUT;
+
+    avdt_ccb_event(p_ccb, avdt_event, (tAVDT_CCB_EVT *)&err_code);
+}
+
+void avdt_ccb_ret_ccb_timer_timeout(void *data)
+{
+    tAVDT_CCB *p_ccb = (tAVDT_CCB *)data;
+    uint8_t avdt_event = AVDT_CCB_RET_TOUT_EVT;
+    uint8_t err_code = AVDT_ERR_TIMEOUT;
+
+    avdt_ccb_event(p_ccb, avdt_event, (tAVDT_CCB_EVT *)&err_code);
+}
+
+void avdt_ccb_rsp_ccb_timer_timeout(void *data)
+{
+    tAVDT_CCB *p_ccb = (tAVDT_CCB *)data;
+    uint8_t avdt_event = AVDT_CCB_RSP_TOUT_EVT;
+    uint8_t err_code = AVDT_ERR_TIMEOUT;
+
+    avdt_ccb_event(p_ccb, avdt_event, (tAVDT_CCB_EVT *)&err_code);
+}
+
+void avdt_scb_transport_channel_timer_timeout(void *data)
+{
+    tAVDT_SCB *p_scb = (tAVDT_SCB *)data;
+    uint8_t avdt_event = AVDT_SCB_TC_TOUT_EVT;
+
+    avdt_scb_event(p_scb, avdt_event, NULL);
+}
+
+/*******************************************************************************
+**
+** Function         AVDT_Register
+**
+** Description      This is the system level registration function for the
+**                  AVDTP protocol.  This function initializes AVDTP and
+**                  prepares the protocol stack for its use.  This function
+**                  must be called once by the system or platform using AVDTP
+**                  before the other functions of the API an be used.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void AVDT_Register(tAVDT_REG *p_reg, tAVDT_CTRL_CBACK *p_cback)
+{
+    /* register PSM with L2CAP */
+    L2CA_Register(AVDT_PSM, (tL2CAP_APPL_INFO *) &avdt_l2c_appl);
+
+    /* set security level */
+    BTM_SetSecurityLevel(TRUE, "", BTM_SEC_SERVICE_AVDTP, p_reg->sec_mask,
+        AVDT_PSM, BTM_SEC_PROTO_AVDT, AVDT_CHAN_SIG);
+    BTM_SetSecurityLevel(FALSE, "", BTM_SEC_SERVICE_AVDTP, p_reg->sec_mask,
+        AVDT_PSM, BTM_SEC_PROTO_AVDT, AVDT_CHAN_SIG);
+
+    /* do not use security on the media channel */
+    BTM_SetSecurityLevel(TRUE, "", BTM_SEC_SERVICE_AVDTP_NOSEC, BTM_SEC_NONE,
+        AVDT_PSM, BTM_SEC_PROTO_AVDT, AVDT_CHAN_MEDIA);
+    BTM_SetSecurityLevel(FALSE, "", BTM_SEC_SERVICE_AVDTP_NOSEC, BTM_SEC_NONE,
+        AVDT_PSM, BTM_SEC_PROTO_AVDT, AVDT_CHAN_MEDIA);
+
+#if AVDT_REPORTING == TRUE
+    /* do not use security on the reporting channel */
+    BTM_SetSecurityLevel(TRUE, "", BTM_SEC_SERVICE_AVDTP_NOSEC, BTM_SEC_NONE,
+        AVDT_PSM, BTM_SEC_PROTO_AVDT, AVDT_CHAN_REPORT);
+    BTM_SetSecurityLevel(FALSE, "", BTM_SEC_SERVICE_AVDTP_NOSEC, BTM_SEC_NONE,
+        AVDT_PSM, BTM_SEC_PROTO_AVDT, AVDT_CHAN_REPORT);
+#endif
+
+    /* initialize AVDTP data structures */
+    avdt_scb_init();
+    avdt_ccb_init();
+    avdt_ad_init();
+
+    /* copy registration struct */
+    memcpy(&avdt_cb.rcb, p_reg, sizeof(tAVDT_REG));
+    avdt_cb.p_conn_cback = p_cback;
+}
+
+/*******************************************************************************
+**
+** Function         AVDT_Deregister
+**
+** Description      This function is called to deregister use AVDTP protocol.
+**                  It is called when AVDTP is no longer being used by any
+**                  application in the system.  Before this function can be
+**                  called, all streams must be removed with AVDT_RemoveStream().
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void AVDT_Deregister(void)
+{
+    /* deregister PSM with L2CAP */
+    L2CA_Deregister(AVDT_PSM);
+}
+
+/*******************************************************************************
+**
+** Function         AVDT_SINK_Activate
+**
+** Description      Activate SEP of A2DP Sink. In Use parameter is adjusted.
+**                  In Use will be made false in case of activation. A2DP SRC
+**                  will receive in_use as false and can open A2DP Sink
+**                  connection
+**
+** Returns          void.
+**
+*******************************************************************************/
+void AVDT_SINK_Activate()
+{
+    tAVDT_SCB           *p_scb = &avdt_cb.scb[0];
+    int                 i;
+    AVDT_TRACE_DEBUG("AVDT_SINK_Activate");
+    /* for all allocated scbs */
+    for (i = 0; i < AVDT_NUM_SEPS; i++, p_scb++)
+    {
+        if ((p_scb->allocated) && (p_scb->cs.tsep == AVDT_TSEP_SNK))
+        {
+            AVDT_TRACE_DEBUG("AVDT_SINK_Activate found scb");
+            /* update in_use */
+            p_scb->in_use = FALSE;
+            break;
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         AVDT_SINK_Deactivate
+**
+** Description      Deactivate SEP of A2DP Sink. In Use parameter is adjusted.
+**                  In Use will be made TRUE in case of activation. A2DP SRC
+**                  will receive in_use as true and will not open A2DP Sink
+**                  connection
+**
+** Returns          void.
+**
+*******************************************************************************/
+void AVDT_SINK_Deactivate()
+{
+    tAVDT_SCB           *p_scb = &avdt_cb.scb[0];
+    int                 i;
+    AVDT_TRACE_DEBUG("AVDT_SINK_Deactivate");
+    /* for all allocated scbs */
+    for (i = 0; i < AVDT_NUM_SEPS; i++, p_scb++)
+    {
+        if ((p_scb->allocated) && (p_scb->cs.tsep == AVDT_TSEP_SNK))
+        {
+            AVDT_TRACE_DEBUG("AVDT_SINK_Deactivate, found scb");
+            /* update in_use */
+            p_scb->in_use = TRUE;
+            break;
+        }
+    }
+}
+
+void AVDT_AbortReq(UINT8 handle)
+{
+    AVDT_TRACE_ERROR("%s", __func__);
+
+    tAVDT_SCB *p_scb = avdt_scb_by_hdl(handle);
+    if (p_scb != NULL)
+    {
+        avdt_scb_event(p_scb, AVDT_SCB_API_ABORT_REQ_EVT, NULL);
+    } else {
+        AVDT_TRACE_ERROR("%s Improper SCB, can not abort the stream", __func__);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         AVDT_CreateStream
+**
+** Description      Create a stream endpoint.  After a stream endpoint is
+**                  created an application can initiate a connection between
+**                  this endpoint and an endpoint on a peer device.  In
+**                  addition, a peer device can discover, get the capabilities,
+**                  and connect to this endpoint.
+**
+**
+** Returns          AVDT_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+UINT16 AVDT_CreateStream(UINT8 *p_handle, tAVDT_CS *p_cs)
+{
+    UINT16      result = AVDT_SUCCESS;
+    tAVDT_SCB   *p_scb;
+
+    /* Verify parameters; if invalid, return failure */
+    if (((p_cs->cfg.psc_mask & (~AVDT_PSC)) != 0) || (p_cs->p_ctrl_cback == NULL))
+    {
+        result = AVDT_BAD_PARAMS;
+    }
+    /* Allocate scb; if no scbs, return failure */
+    else if ((p_scb = avdt_scb_alloc(p_cs)) == NULL)
+    {
+        result = AVDT_NO_RESOURCES;
+    }
+    else
+    {
+        *p_handle = avdt_scb_to_hdl(p_scb);
+    }
+    return result;
+}
+
+/*******************************************************************************
+**
+** Function         AVDT_RemoveStream
+**
+** Description      Remove a stream endpoint.  This function is called when
+**                  the application is no longer using a stream endpoint.
+**                  If this function is called when the endpoint is connected
+**                  the connection is closed and then the stream endpoint
+**                  is removed.
+**
+**
+** Returns          AVDT_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+UINT16 AVDT_RemoveStream(UINT8 handle)
+{
+    UINT16      result = AVDT_SUCCESS;
+    tAVDT_SCB   *p_scb;
+
+    /* look up scb */
+    if ((p_scb = avdt_scb_by_hdl(handle)) == NULL)
+    {
+        result = AVDT_BAD_HANDLE;
+    }
+    else
+    {
+        /* send remove event to scb */
+        avdt_scb_event(p_scb, AVDT_SCB_API_REMOVE_EVT, NULL);
+    }
+    return result;
+}
+
+/*******************************************************************************
+**
+** Function         AVDT_DiscoverReq
+**
+** Description      This function initiates a connection to the AVDTP service
+**                  on the peer device, if not already present, and discovers
+**                  the stream endpoints on the peer device.  (Please note
+**                  that AVDTP discovery is unrelated to SDP discovery).
+**                  This function can be called at any time regardless of whether
+**                  there is an AVDTP connection to the peer device.
+**
+**                  When discovery is complete, an AVDT_DISCOVER_CFM_EVT
+**                  is sent to the application via its callback function.
+**                  The application must not call AVDT_GetCapReq() or
+**                  AVDT_DiscoverReq() again to the same device until
+**                  discovery is complete.
+**
+**                  The memory addressed by sep_info is allocated by the
+**                  application.  This memory is written to by AVDTP as part
+**                  of the discovery procedure.  This memory must remain
+**                  accessible until the application receives the
+**                  AVDT_DISCOVER_CFM_EVT.
+**
+** Returns          AVDT_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+UINT16 AVDT_DiscoverReq(BD_ADDR bd_addr, tAVDT_SEP_INFO *p_sep_info,
+                        UINT8 max_seps, tAVDT_CTRL_CBACK *p_cback)
+{
+    tAVDT_CCB       *p_ccb;
+    UINT16          result = AVDT_SUCCESS;
+    tAVDT_CCB_EVT   evt;
+
+    /* find channel control block for this bd addr; if none, allocate one */
+    if ((p_ccb = avdt_ccb_by_bd(bd_addr)) == NULL)
+    {
+        if ((p_ccb = avdt_ccb_alloc(bd_addr)) == NULL)
+        {
+            /* could not allocate channel control block */
+            result = AVDT_NO_RESOURCES;
+        }
+    }
+
+    if (result == AVDT_SUCCESS)
+    {
+        /* make sure no discovery or get capabilities req already in progress */
+        if (p_ccb->proc_busy)
+        {
+            result = AVDT_BUSY;
+        }
+        /* send event to ccb */
+        else
+        {
+            evt.discover.p_sep_info = p_sep_info;
+            evt.discover.num_seps = max_seps;
+            evt.discover.p_cback = p_cback;
+            avdt_ccb_event(p_ccb, AVDT_CCB_API_DISCOVER_REQ_EVT, &evt);
+        }
+    }
+    return result;
+}
+
+/*******************************************************************************
+**
+** Function         avdt_get_cap_req
+**
+** Description      internal function to serve both AVDT_GetCapReq and
+**                  AVDT_GetAllCapReq
+**
+** Returns          AVDT_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+static UINT16 avdt_get_cap_req(BD_ADDR bd_addr, tAVDT_CCB_API_GETCAP *p_evt)
+{
+    tAVDT_CCB       *p_ccb = NULL;
+    UINT16          result = AVDT_SUCCESS;
+
+    /* verify SEID */
+    if ((p_evt->single.seid < AVDT_SEID_MIN) || (p_evt->single.seid > AVDT_SEID_MAX))
+    {
+        AVDT_TRACE_ERROR("seid: %d", p_evt->single.seid);
+        result = AVDT_BAD_PARAMS;
+    }
+    /* find channel control block for this bd addr; if none, allocate one */
+    else if ((p_ccb = avdt_ccb_by_bd(bd_addr)) == NULL)
+    {
+        if ((p_ccb = avdt_ccb_alloc(bd_addr)) == NULL)
+        {
+            /* could not allocate channel control block */
+            result = AVDT_NO_RESOURCES;
+        }
+    }
+
+    if (result == AVDT_SUCCESS)
+    {
+        /* make sure no discovery or get capabilities req already in progress */
+        if (p_ccb->proc_busy)
+        {
+            result = AVDT_BUSY;
+        }
+        /* send event to ccb */
+        else
+        {
+            avdt_ccb_event(p_ccb, AVDT_CCB_API_GETCAP_REQ_EVT, (tAVDT_CCB_EVT *)p_evt);
+        }
+    }
+    return result;
+}
+
+/*******************************************************************************
+**
+** Function         AVDT_GetCapReq
+**
+** Description      This function initiates a connection to the AVDTP service
+**                  on the peer device, if not already present, and gets the
+**                  capabilities of a stream endpoint on the peer device.
+**                  This function can be called at any time regardless of
+**                  whether there is an AVDTP connection to the peer device.
+**
+**                  When the procedure is complete, an AVDT_GETCAP_CFM_EVT is
+**                  sent to the application via its callback function.  The
+**                  application must not call AVDT_GetCapReq() or
+**                  AVDT_DiscoverReq() again until the procedure is complete.
+**
+**                  The memory pointed to by p_cfg is allocated by the
+**                  application.  This memory is written to by AVDTP as part
+**                  of the get capabilities procedure.  This memory must
+**                  remain accessible until the application receives
+**                  the AVDT_GETCAP_CFM_EVT.
+**
+** Returns          AVDT_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+UINT16 AVDT_GetCapReq(BD_ADDR bd_addr, UINT8 seid, tAVDT_CFG *p_cfg, tAVDT_CTRL_CBACK *p_cback)
+{
+    tAVDT_CCB_API_GETCAP    getcap;
+
+    getcap.single.seid = seid;
+    getcap.single.sig_id = AVDT_SIG_GETCAP;
+    getcap.p_cfg = p_cfg;
+    getcap.p_cback = p_cback;
+    return avdt_get_cap_req (bd_addr, &getcap);
+}
+
+/*******************************************************************************
+**
+** Function         AVDT_GetAllCapReq
+**
+** Description      This function initiates a connection to the AVDTP service
+**                  on the peer device, if not already present, and gets the
+**                  capabilities of a stream endpoint on the peer device.
+**                  This function can be called at any time regardless of
+**                  whether there is an AVDTP connection to the peer device.
+**
+**                  When the procedure is complete, an AVDT_GETCAP_CFM_EVT is
+**                  sent to the application via its callback function.  The
+**                  application must not call AVDT_GetCapReq() or
+**                  AVDT_DiscoverReq() again until the procedure is complete.
+**
+**                  The memory pointed to by p_cfg is allocated by the
+**                  application.  This memory is written to by AVDTP as part
+**                  of the get capabilities procedure.  This memory must
+**                  remain accessible until the application receives
+**                  the AVDT_GETCAP_CFM_EVT.
+**
+** Returns          AVDT_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+UINT16 AVDT_GetAllCapReq(BD_ADDR bd_addr, UINT8 seid, tAVDT_CFG *p_cfg, tAVDT_CTRL_CBACK *p_cback)
+{
+    tAVDT_CCB_API_GETCAP    getcap;
+
+    getcap.single.seid = seid;
+    getcap.single.sig_id = AVDT_SIG_GET_ALLCAP;
+    getcap.p_cfg = p_cfg;
+    getcap.p_cback = p_cback;
+    return avdt_get_cap_req (bd_addr, &getcap);
+}
+
+/*******************************************************************************
+**
+** Function         AVDT_DelayReport
+**
+** Description      This functions sends a Delay Report to the peer device
+**                  that is associated with a particular SEID.
+**                  This function is called by SNK device.
+**
+** Returns          AVDT_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+UINT16 AVDT_DelayReport(UINT8 handle, UINT8 seid, UINT16 delay)
+{
+    tAVDT_SCB       *p_scb;
+    UINT16          result = AVDT_SUCCESS;
+    tAVDT_SCB_EVT   evt;
+
+    /* map handle to scb */
+    if ((p_scb = avdt_scb_by_hdl(handle)) == NULL)
+    {
+        result = AVDT_BAD_HANDLE;
+    }
+    else
+    /* send event to scb */
+    {
+        evt.apidelay.hdr.seid   = seid;
+        evt.apidelay.delay      = delay;
+        avdt_scb_event(p_scb, AVDT_SCB_API_DELAY_RPT_REQ_EVT, &evt);
+    }
+
+    return result;
+}
+
+/*******************************************************************************
+**
+** Function         AVDT_OpenReq
+**
+** Description      This function initiates a connection to the AVDTP service
+**                  on the peer device, if not already present, and connects
+**                  to a stream endpoint on a peer device.  When the connection
+**                  is completed, an AVDT_OPEN_CFM_EVT is sent to the
+**                  application via the control callback function for this handle.
+**
+** Returns          AVDT_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+UINT16 AVDT_OpenReq(UINT8 handle, BD_ADDR bd_addr, UINT8 seid, tAVDT_CFG *p_cfg)
+{
+    tAVDT_CCB       *p_ccb = NULL;
+    tAVDT_SCB       *p_scb = NULL;
+    UINT16          result = AVDT_SUCCESS;
+    tAVDT_SCB_EVT   evt;
+
+    /* verify SEID */
+    if ((seid < AVDT_SEID_MIN) || (seid > AVDT_SEID_MAX))
+    {
+        result = AVDT_BAD_PARAMS;
+    }
+    /* map handle to scb */
+    else if ((p_scb = avdt_scb_by_hdl(handle)) == NULL)
+    {
+        result = AVDT_BAD_HANDLE;
+    }
+    /* find channel control block for this bd addr; if none, allocate one */
+    else if ((p_ccb = avdt_ccb_by_bd(bd_addr)) == NULL)
+    {
+        if ((p_ccb = avdt_ccb_alloc(bd_addr)) == NULL)
+        {
+            /* could not allocate channel control block */
+            result = AVDT_NO_RESOURCES;
+        }
+    }
+
+    /* send event to scb */
+    if (result == AVDT_SUCCESS)
+    {
+        evt.msg.config_cmd.hdr.seid = seid;
+        evt.msg.config_cmd.hdr.ccb_idx = avdt_ccb_to_idx(p_ccb);
+        evt.msg.config_cmd.int_seid = handle;
+        evt.msg.config_cmd.p_cfg = p_cfg;
+        avdt_scb_event(p_scb, AVDT_SCB_API_SETCONFIG_REQ_EVT, &evt);
+    }
+    return result;
+}
+
+/*******************************************************************************
+**
+** Function         AVDT_ConfigRsp
+**
+** Description      Respond to a configure request from the peer device.  This
+**                  function must be called if the application receives an
+**                  AVDT_CONFIG_IND_EVT through its control callback.
+**
+**
+** Returns          AVDT_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+UINT16 AVDT_ConfigRsp(UINT8 handle, UINT8 label, UINT8 error_code, UINT8 category)
+{
+    tAVDT_SCB       *p_scb;
+    tAVDT_SCB_EVT   evt;
+    UINT16          result = AVDT_SUCCESS;
+    UINT8           event_code;
+
+    /* map handle to scb */
+    if ((p_scb = avdt_scb_by_hdl(handle)) == NULL)
+    {
+        result = AVDT_BAD_HANDLE;
+    }
+    /* handle special case when this function is called but peer has not send
+    ** a configuration cmd; ignore and return error result
+    */
+    else if (!p_scb->in_use)
+    {
+        result = AVDT_BAD_HANDLE;
+    }
+    /* send event to scb */
+    else
+    {
+        evt.msg.hdr.err_code = error_code;
+        evt.msg.hdr.err_param = category;
+        evt.msg.hdr.label = label;
+        if (error_code == 0)
+        {
+            event_code = AVDT_SCB_API_SETCONFIG_RSP_EVT;
+        }
+        else
+        {
+            event_code = AVDT_SCB_API_SETCONFIG_REJ_EVT;
+        }
+        avdt_scb_event(p_scb, event_code, &evt);
+    }
+
+    return result;
+}
+
+/*******************************************************************************
+**
+** Function         AVDT_StartReq
+**
+** Description      Start one or more stream endpoints.  This initiates the
+**                  transfer of media packets for the streams.  All stream
+**                  endpoints must previously be opened.  When the streams
+**                  are started, an AVDT_START_CFM_EVT is sent to the
+**                  application via the control callback function for each stream.
+**
+**
+** Returns          AVDT_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+UINT16 AVDT_StartReq(UINT8 *p_handles, UINT8 num_handles)
+{
+    tAVDT_SCB       *p_scb = NULL;
+    tAVDT_CCB_EVT   evt;
+    UINT16          result = AVDT_SUCCESS;
+    int             i;
+
+    if ((num_handles == 0) || (num_handles > AVDT_NUM_SEPS))
+    {
+        result = AVDT_BAD_PARAMS;
+    }
+    else
+    {
+        /* verify handles */
+        for (i = 0; i < num_handles; i++)
+        {
+            if ((p_scb = avdt_scb_by_hdl(p_handles[i])) == NULL)
+            {
+                result = AVDT_BAD_HANDLE;
+                break;
+            }
+        }
+    }
+
+    if (result == AVDT_SUCCESS)
+    {
+        if (p_scb->p_ccb == NULL)
+        {
+            result = AVDT_BAD_HANDLE;
+        }
+        else
+        {
+            /* send event to ccb */
+            memcpy(evt.msg.multi.seid_list, p_handles, num_handles);
+            evt.msg.multi.num_seps = num_handles;
+            avdt_ccb_event(p_scb->p_ccb, AVDT_CCB_API_START_REQ_EVT, &evt);
+        }
+    }
+    return result;
+}
+
+/*******************************************************************************
+**
+** Function         AVDT_SuspendReq
+**
+** Description      Suspend one or more stream endpoints. This suspends the
+**                  transfer of media packets for the streams.  All stream
+**                  endpoints must previously be open and started.  When the
+**                  streams are suspended, an AVDT_SUSPEND_CFM_EVT is sent to
+**                  the application via the control callback function for
+**                  each stream.
+**
+**
+** Returns          AVDT_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+UINT16 AVDT_SuspendReq(UINT8 *p_handles, UINT8 num_handles)
+{
+    tAVDT_SCB       *p_scb = NULL;
+    tAVDT_CCB_EVT   evt;
+    UINT16          result = AVDT_SUCCESS;
+    int             i;
+
+    if ((num_handles == 0) || (num_handles > AVDT_NUM_SEPS))
+    {
+        result = AVDT_BAD_PARAMS;
+    }
+    else
+    {
+        /* verify handles */
+        for (i = 0; i < num_handles; i++)
+        {
+            if ((p_scb = avdt_scb_by_hdl(p_handles[i])) == NULL)
+            {
+                result = AVDT_BAD_HANDLE;
+                break;
+            }
+        }
+    }
+
+    if (result == AVDT_SUCCESS)
+    {
+        if (p_scb->p_ccb == NULL)
+        {
+            result = AVDT_BAD_HANDLE;
+        }
+        else
+        {
+            /* send event to ccb */
+            memcpy(evt.msg.multi.seid_list, p_handles, num_handles);
+            evt.msg.multi.num_seps = num_handles;
+            avdt_ccb_event(p_scb->p_ccb, AVDT_CCB_API_SUSPEND_REQ_EVT, &evt);
+        }
+    }
+
+    return result;
+}
+
+/*******************************************************************************
+**
+** Function         AVDT_CloseReq
+**
+** Description      Close a stream endpoint.  This stops the transfer of media
+**                  packets and closes the transport channel associated with
+**                  this stream endpoint.  When the stream is closed, an
+**                  AVDT_CLOSE_CFM_EVT is sent to the application via the
+**                  control callback function for this handle.
+**
+**
+** Returns          AVDT_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+UINT16 AVDT_CloseReq(UINT8 handle)
+{
+    tAVDT_SCB       *p_scb;
+    UINT16          result = AVDT_SUCCESS;
+
+    /* map handle to scb */
+    if ((p_scb = avdt_scb_by_hdl(handle)) == NULL)
+    {
+        result = AVDT_BAD_HANDLE;
+    }
+    else
+    /* send event to scb */
+    {
+        avdt_scb_event(p_scb, AVDT_SCB_API_CLOSE_REQ_EVT, NULL);
+    }
+
+    return result;
+}
+
+/*******************************************************************************
+**
+** Function         AVDT_ReconfigReq
+**
+** Description      Reconfigure a stream endpoint.  This allows the application
+**                  to change the codec or content protection capabilities of
+**                  a stream endpoint after it has been opened.  This function
+**                  can only be called if the stream is opened but not started
+**                  or if the stream has been suspended.  When the procedure
+**                  is completed, an AVDT_RECONFIG_CFM_EVT is sent to the
+**                  application via the control callback function for this handle.
+**
+**
+** Returns          AVDT_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+UINT16 AVDT_ReconfigReq(UINT8 handle, tAVDT_CFG *p_cfg)
+{
+    tAVDT_SCB       *p_scb;
+    UINT16          result = AVDT_SUCCESS;
+    tAVDT_SCB_EVT   evt;
+
+    /* map handle to scb */
+    if ((p_scb = avdt_scb_by_hdl(handle)) == NULL)
+    {
+        result = AVDT_BAD_HANDLE;
+    }
+    /* send event to scb */
+    else
+    {
+        /* force psc_mask to zero */
+        p_cfg->psc_mask = 0;
+
+        evt.msg.reconfig_cmd.p_cfg = p_cfg;
+        avdt_scb_event(p_scb, AVDT_SCB_API_RECONFIG_REQ_EVT, &evt);
+    }
+    return result;
+}
+
+/*******************************************************************************
+**
+** Function         AVDT_ReconfigRsp
+**
+** Description      Respond to a reconfigure request from the peer device.
+**                  This function must be called if the application receives
+**                  an AVDT_RECONFIG_IND_EVT through its control callback.
+**
+**
+** Returns          AVDT_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+UINT16 AVDT_ReconfigRsp(UINT8 handle, UINT8 label, UINT8 error_code, UINT8 category)
+{
+    tAVDT_SCB       *p_scb;
+    tAVDT_SCB_EVT   evt;
+    UINT16          result = AVDT_SUCCESS;
+
+    /* map handle to scb */
+    if ((p_scb = avdt_scb_by_hdl(handle)) == NULL)
+    {
+        result = AVDT_BAD_HANDLE;
+    }
+    /* send event to scb */
+    else
+    {
+        evt.msg.hdr.err_code = error_code;
+        evt.msg.hdr.err_param = category;
+        evt.msg.hdr.label = label;
+        avdt_scb_event(p_scb, AVDT_SCB_API_RECONFIG_RSP_EVT, &evt);
+    }
+
+    return result;
+}
+
+/*******************************************************************************
+**
+** Function         AVDT_SecurityReq
+**
+** Description      Send a security request to the peer device.  When the
+**                  security procedure is completed, an AVDT_SECURITY_CFM_EVT
+**                  is sent to the application via the control callback function
+**                  for this handle.  (Please note that AVDTP security procedures
+**                  are unrelated to Bluetooth link level security.)
+**
+**
+** Returns          AVDT_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+UINT16 AVDT_SecurityReq(UINT8 handle, UINT8 *p_data, UINT16 len)
+{
+    tAVDT_SCB       *p_scb;
+    UINT16          result = AVDT_SUCCESS;
+    tAVDT_SCB_EVT   evt;
+
+    /* map handle to scb */
+    if ((p_scb = avdt_scb_by_hdl(handle)) == NULL)
+    {
+        result = AVDT_BAD_HANDLE;
+    }
+    /* send event to scb */
+    else
+    {
+        evt.msg.security_rsp.p_data = p_data;
+        evt.msg.security_rsp.len = len;
+        avdt_scb_event(p_scb, AVDT_SCB_API_SECURITY_REQ_EVT, &evt);
+    }
+    return result;
+}
+
+/*******************************************************************************
+**
+** Function         AVDT_SecurityRsp
+**
+** Description      Respond to a security request from the peer device.
+**                  This function must be called if the application receives
+**                  an AVDT_SECURITY_IND_EVT through its control callback.
+**                  (Please note that AVDTP security procedures are unrelated
+**                  to Bluetooth link level security.)
+**
+**
+** Returns          AVDT_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+UINT16 AVDT_SecurityRsp(UINT8 handle, UINT8 label, UINT8 error_code,
+                        UINT8 *p_data, UINT16 len)
+{
+    tAVDT_SCB       *p_scb;
+    UINT16          result = AVDT_SUCCESS;
+    tAVDT_SCB_EVT   evt;
+
+    /* map handle to scb */
+    if ((p_scb = avdt_scb_by_hdl(handle)) == NULL)
+    {
+        result = AVDT_BAD_HANDLE;
+    }
+    /* send event to scb */
+    else
+    {
+        evt.msg.security_rsp.hdr.err_code = error_code;
+        evt.msg.security_rsp.hdr.label = label;
+        evt.msg.security_rsp.p_data = p_data;
+        evt.msg.security_rsp.len = len;
+        avdt_scb_event(p_scb, AVDT_SCB_API_SECURITY_RSP_EVT, &evt);
+    }
+    return result;
+}
+
+/*******************************************************************************
+**
+** Function         AVDT_WriteReqOpt
+**
+** Description      Send a media packet to the peer device.  The stream must
+**                  be started before this function is called.  Also, this
+**                  function can only be called if the stream is a SRC.
+**
+**                  When AVDTP has sent the media packet and is ready for the
+**                  next packet, an AVDT_WRITE_CFM_EVT is sent to the
+**                  application via the control callback.  The application must
+**                  wait for the AVDT_WRITE_CFM_EVT before it makes the next
+**                  call to AVDT_WriteReq().  If the applications calls
+**                  AVDT_WriteReq() before it receives the event the packet
+**                  will not be sent.  The application may make its first call
+**                  to AVDT_WriteReq() after it receives an AVDT_START_CFM_EVT
+**                  or AVDT_START_IND_EVT.
+**
+**                  The application passes the packet using the BT_HDR structure.
+**                  This structure is described in section 2.1.  The offset
+**                  field must be equal to or greater than AVDT_MEDIA_OFFSET
+**                  (if NO_RTP is specified, L2CAP_MIN_OFFSET can be used).
+**                  This allows enough space in the buffer for the L2CAP and
+**                  AVDTP headers.
+**
+**                  The memory pointed to by p_pkt must be a GKI buffer
+**                  allocated by the application.  This buffer will be freed
+**                  by the protocol stack; the application must not free
+**                  this buffer.
+**
+**                  The opt parameter allows passing specific options like:
+**                  - NO_RTP : do not add the RTP header to buffer
+**
+** Returns          AVDT_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+UINT16 AVDT_WriteReqOpt(UINT8 handle, BT_HDR *p_pkt, UINT32 time_stamp, UINT8 m_pt, tAVDT_DATA_OPT_MASK opt)
+{
+    tAVDT_SCB       *p_scb;
+    tAVDT_SCB_EVT   evt;
+    UINT16          result = AVDT_SUCCESS;
+
+    /* map handle to scb */
+    if ((p_scb = avdt_scb_by_hdl(handle)) == NULL)
+    {
+        result = AVDT_BAD_HANDLE;
+    }
+    else
+    {
+        evt.apiwrite.p_buf = p_pkt;
+        evt.apiwrite.time_stamp = time_stamp;
+        evt.apiwrite.m_pt = m_pt;
+        evt.apiwrite.opt = opt;
+        avdt_scb_event(p_scb, AVDT_SCB_API_WRITE_REQ_EVT, &evt);
+    }
+
+    return result;
+}
+
+/*******************************************************************************
+**
+** Function         AVDT_WriteReq
+**
+** Description      Send a media packet to the peer device.  The stream must
+**                  be started before this function is called.  Also, this
+**                  function can only be called if the stream is a SRC.
+**
+**                  When AVDTP has sent the media packet and is ready for the
+**                  next packet, an AVDT_WRITE_CFM_EVT is sent to the
+**                  application via the control callback.  The application must
+**                  wait for the AVDT_WRITE_CFM_EVT before it makes the next
+**                  call to AVDT_WriteReq().  If the applications calls
+**                  AVDT_WriteReq() before it receives the event the packet
+**                  will not be sent.  The application may make its first call
+**                  to AVDT_WriteReq() after it receives an AVDT_START_CFM_EVT
+**                  or AVDT_START_IND_EVT.
+**
+**                  The application passes the packet using the BT_HDR structure.
+**                  This structure is described in section 2.1.  The offset
+**                  field must be equal to or greater than AVDT_MEDIA_OFFSET.
+**                  This allows enough space in the buffer for the L2CAP and
+**                  AVDTP headers.
+**
+**                  The memory pointed to by p_pkt must be a GKI buffer
+**                  allocated by the application.  This buffer will be freed
+**                  by the protocol stack; the application must not free
+**                  this buffer.
+**
+**
+** Returns          AVDT_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+UINT16 AVDT_WriteReq(UINT8 handle, BT_HDR *p_pkt, UINT32 time_stamp, UINT8 m_pt)
+{
+    return AVDT_WriteReqOpt(handle, p_pkt, time_stamp, m_pt, AVDT_DATA_OPT_NONE);
+}
+
+/*******************************************************************************
+**
+** Function         AVDT_ConnectReq
+**
+** Description      This function initiates an AVDTP signaling connection
+**                  to the peer device.  When the connection is completed, an
+**                  AVDT_CONNECT_IND_EVT is sent to the application via its
+**                  control callback function.  If the connection attempt fails
+**                  an AVDT_DISCONNECT_IND_EVT is sent.  The security mask
+**                  parameter overrides the outgoing security mask set in
+**                  AVDT_Register().
+**
+** Returns          AVDT_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+UINT16 AVDT_ConnectReq(BD_ADDR bd_addr, UINT8 sec_mask, tAVDT_CTRL_CBACK *p_cback)
+{
+    tAVDT_CCB       *p_ccb = NULL;
+    UINT16          result = AVDT_SUCCESS;
+    tAVDT_CCB_EVT   evt;
+
+    /* find channel control block for this bd addr; if none, allocate one */
+    if ((p_ccb = avdt_ccb_by_bd(bd_addr)) == NULL)
+    {
+        if ((p_ccb = avdt_ccb_alloc(bd_addr)) == NULL)
+        {
+            /* could not allocate channel control block */
+            result = AVDT_NO_RESOURCES;
+        }
+    }
+    else if (p_ccb->ll_opened == FALSE)
+    {
+        AVDT_TRACE_WARNING("AVDT_ConnectReq: CCB LL is in the middle of opening");
+
+        /* ccb was already allocated for the incoming signalling. */
+        result = AVDT_BUSY;
+    }
+
+    if (result == AVDT_SUCCESS)
+    {
+        /* send event to ccb */
+        evt.connect.p_cback = p_cback;
+        evt.connect.sec_mask = sec_mask;
+        avdt_ccb_event(p_ccb, AVDT_CCB_API_CONNECT_REQ_EVT, &evt);
+    }
+    return result;
+}
+
+/*******************************************************************************
+**
+** Function         AVDT_DisconnectReq
+**
+** Description      This function disconnect an AVDTP signaling connection
+**                  to the peer device.  When disconnected an
+**                  AVDT_DISCONNECT_IND_EVT is sent to the application via its
+**                  control callback function.
+**
+** Returns          AVDT_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+UINT16 AVDT_DisconnectReq(BD_ADDR bd_addr, tAVDT_CTRL_CBACK *p_cback)
+{
+    tAVDT_CCB       *p_ccb = NULL;
+    UINT16          result = AVDT_SUCCESS;
+    tAVDT_CCB_EVT   evt;
+
+    /* find channel control block for this bd addr; if none, error */
+    if ((p_ccb = avdt_ccb_by_bd(bd_addr)) == NULL)
+    {
+        result = AVDT_BAD_PARAMS;
+    }
+
+    if (result == AVDT_SUCCESS)
+    {
+        /* send event to ccb */
+        evt.disconnect.p_cback = p_cback;
+        avdt_ccb_event(p_ccb, AVDT_CCB_API_DISCONNECT_REQ_EVT, &evt);
+    }
+    return result;
+}
+
+/*******************************************************************************
+**
+** Function         AVDT_GetL2CapChannel
+**
+** Description      Get the L2CAP CID used by the handle.
+**
+** Returns          CID if successful, otherwise 0.
+**
+*******************************************************************************/
+UINT16 AVDT_GetL2CapChannel(UINT8 handle)
+{
+    tAVDT_SCB       *p_scb;
+    tAVDT_CCB       *p_ccb;
+    UINT8           tcid;
+    UINT16          lcid = 0;
+
+    /* map handle to scb */
+    if (((p_scb = avdt_scb_by_hdl(handle)) != NULL)
+     && ((p_ccb = p_scb->p_ccb) != NULL))
+    {
+        /* get tcid from type, scb */
+        tcid = avdt_ad_type_to_tcid(AVDT_CHAN_MEDIA, p_scb);
+
+        lcid = avdt_cb.ad.rt_tbl[avdt_ccb_to_idx(p_ccb)][tcid].lcid;
+    }
+
+    return (lcid);
+}
+
+/*******************************************************************************
+**
+** Function         AVDT_GetSignalChannel
+**
+** Description      Get the L2CAP CID used by the signal channel of the given handle.
+**
+** Returns          CID if successful, otherwise 0.
+**
+*******************************************************************************/
+UINT16 AVDT_GetSignalChannel(UINT8 handle, BD_ADDR bd_addr)
+{
+    tAVDT_SCB       *p_scb;
+    tAVDT_CCB       *p_ccb;
+    UINT8           tcid = 0; /* tcid is always 0 for signal channel */
+    UINT16          lcid = 0;
+
+    /* map handle to scb */
+    if (((p_scb = avdt_scb_by_hdl(handle)) != NULL)
+     && ((p_ccb = p_scb->p_ccb) != NULL))
+    {
+        lcid = avdt_cb.ad.rt_tbl[avdt_ccb_to_idx(p_ccb)][tcid].lcid;
+    }
+    else if ((p_ccb = avdt_ccb_by_bd(bd_addr)) != NULL)
+    {
+        lcid = avdt_cb.ad.rt_tbl[avdt_ccb_to_idx(p_ccb)][tcid].lcid;
+    }
+
+    return (lcid);
+}
+
+#if AVDT_MULTIPLEXING == TRUE
+/*******************************************************************************
+**
+** Function         AVDT_SetMediaBuf
+**
+** Description      Assigns buffer for media packets or forbids using of assigned
+**                  buffer if argument p_buf is NULL. This function can only
+**                  be called if the stream is a SNK.
+**
+**                  AVDTP uses this buffer to reassemble fragmented media packets.
+**                  When AVDTP receives a complete media packet, it calls the
+**                  p_media_cback assigned by AVDT_CreateStream().
+**                  This function can be called during callback to assign a
+**                  different buffer for next media packet or can leave the current
+**                  buffer for next packet.
+**
+** Returns          AVDT_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+extern UINT16 AVDT_SetMediaBuf(UINT8 handle, UINT8 *p_buf, UINT32 buf_len)
+{
+    tAVDT_SCB       *p_scb;
+    UINT16          result = AVDT_SUCCESS;
+
+    /* map handle to scb */
+    if ((p_scb = avdt_scb_by_hdl(handle)) == NULL)
+    {
+        result = AVDT_BAD_HANDLE;
+    }
+    else
+    {
+        if(p_buf && p_scb->cs.p_media_cback == NULL)
+            result = AVDT_NO_RESOURCES;
+        else
+        {
+            p_scb->p_media_buf = p_buf;
+            p_scb->media_buf_len = buf_len;
+        }
+    }
+
+    return result;
+}
+#endif
+
+#if AVDT_REPORTING == TRUE
+/*******************************************************************************
+**
+** Function         AVDT_SendReport
+**
+** Description
+**
+**
+**
+** Returns
+**
+*******************************************************************************/
+UINT16 AVDT_SendReport(UINT8 handle, AVDT_REPORT_TYPE type,
+                       tAVDT_REPORT_DATA *p_data)
+{
+    tAVDT_SCB       *p_scb;
+    UINT16          result = AVDT_BAD_PARAMS;
+    tAVDT_TC_TBL    *p_tbl;
+    UINT8           *p, *plen, *pm1, *p_end;
+#if AVDT_MULTIPLEXING == TRUE
+    UINT8           *p_al=NULL, u;
+#endif
+    UINT32  ssrc;
+    UINT16  len;
+
+    /* map handle to scb && verify parameters */
+    if (((p_scb = avdt_scb_by_hdl(handle)) != NULL)
+     && (p_scb->p_ccb != NULL)
+     && (((type == AVDT_RTCP_PT_SR) && (p_scb->cs.tsep == AVDT_TSEP_SRC)) ||
+        ((type == AVDT_RTCP_PT_RR) && (p_scb->cs.tsep == AVDT_TSEP_SNK)) ||
+        (type == AVDT_RTCP_PT_SDES)) )
+    {
+        result = AVDT_NO_RESOURCES;
+
+        /* build SR - assume fit in one packet */
+        p_tbl = avdt_ad_tc_tbl_by_type(AVDT_CHAN_REPORT, p_scb->p_ccb, p_scb);
+        if (p_tbl->state == AVDT_AD_ST_OPEN) {
+            BT_HDR *p_pkt = (BT_HDR *)osi_malloc(p_tbl->peer_mtu);
+
+            p_pkt->offset = L2CAP_MIN_OFFSET;
+            p = (UINT8 *)(p_pkt + 1) + p_pkt->offset;
+#if AVDT_MULTIPLEXING == TRUE
+            if(p_scb->curr_cfg.psc_mask & AVDT_PSC_MUX)
+            {
+                /* Adaptation Layer header later */
+                p_al = p;
+                p += 2;
+            }
+#endif
+            pm1 = p;
+            *p++ = AVDT_MEDIA_OCTET1 | 1;
+            *p++ = type;
+            /* save the location for length */
+            plen = p;
+            p+= 2;
+            ssrc = avdt_scb_gen_ssrc(p_scb);
+            UINT32_TO_BE_STREAM(p, ssrc);
+
+            switch(type)
+            {
+            case AVDT_RTCP_PT_SR:   /* Sender Report */
+                *pm1 = AVDT_MEDIA_OCTET1;
+                UINT32_TO_BE_STREAM(p, p_data->sr.ntp_sec);
+                UINT32_TO_BE_STREAM(p, p_data->sr.ntp_frac);
+                UINT32_TO_BE_STREAM(p, p_data->sr.rtp_time);
+                UINT32_TO_BE_STREAM(p, p_data->sr.pkt_count);
+                UINT32_TO_BE_STREAM(p, p_data->sr.octet_count);
+                break;
+
+            case AVDT_RTCP_PT_RR:   /* Receiver Report */
+                *p++ = p_data->rr.frag_lost;
+                AVDT_TRACE_API("packet_lost: %d", p_data->rr.packet_lost);
+                p_data->rr.packet_lost &= 0xFFFFFF;
+                AVDT_TRACE_API("packet_lost: %d", p_data->rr.packet_lost);
+                UINT24_TO_BE_STREAM(p, p_data->rr.packet_lost);
+                UINT32_TO_BE_STREAM(p, p_data->rr.seq_num_rcvd);
+                UINT32_TO_BE_STREAM(p, p_data->rr.jitter);
+                UINT32_TO_BE_STREAM(p, p_data->rr.lsr);
+                UINT32_TO_BE_STREAM(p, p_data->rr.dlsr);
+                break;
+
+            case AVDT_RTCP_PT_SDES: /* Source Description */
+                *p++ = AVDT_RTCP_SDES_CNAME;
+                len = strlen((char *)p_data->cname);
+                if(len > AVDT_MAX_CNAME_SIZE)
+                    len = AVDT_MAX_CNAME_SIZE;
+                *p++ = (UINT8)len;
+                strlcpy((char *)p, (char *)p_data->cname, len+1);
+                p += len;
+                break;
+            }
+            p_end = p;
+            len = p - pm1 - 1;
+            UINT16_TO_BE_STREAM(plen, len);
+
+#if AVDT_MULTIPLEXING == TRUE
+            if(p_scb->curr_cfg.psc_mask & AVDT_PSC_MUX)
+            {
+                /* Adaptation Layer header */
+                p = p_al;
+                len++;
+                UINT16_TO_BE_STREAM(p_al, len );
+                /* TSID, no-fragment bit and coding of length(9-bit length field) */
+                u = *p;
+                *p = (p_scb->curr_cfg.mux_tsid_report<<3) | AVDT_ALH_LCODE_9BITM0;
+                if(u)
+                    *p |= AVDT_ALH_LCODE_9BITM1;
+            }
+#endif
+
+            /* set the actual payload length */
+            p_pkt->len = p_end - p;
+            /* send the packet */
+            if(L2CAP_DW_FAILED != avdt_ad_write_req(AVDT_CHAN_REPORT, p_scb->p_ccb, p_scb, p_pkt))
+                result = AVDT_SUCCESS;
+        }
+    }
+
+    return result;
+}
+#endif
+
+/******************************************************************************
+**
+** Function         AVDT_SetTraceLevel
+**
+** Description      Sets the trace level for AVDT. If 0xff is passed, the
+**                  current trace level is returned.
+**
+**                  Input Parameters:
+**                      new_level:  The level to set the AVDT tracing to:
+**                      0xff-returns the current setting.
+**                      0-turns off tracing.
+**                      >= 1-Errors.
+**                      >= 2-Warnings.
+**                      >= 3-APIs.
+**                      >= 4-Events.
+**                      >= 5-Debug.
+**
+** Returns          The new trace level or current trace level if
+**                  the input parameter is 0xff.
+**
+******************************************************************************/
+UINT8 AVDT_SetTraceLevel (UINT8 new_level)
+{
+    if (new_level != 0xFF)
+        avdt_cb.trace_level = new_level;
+
+    return (avdt_cb.trace_level);
+}
diff --git a/rtkbt/code/bt/stack/avdt/avdt_ccb.c b/rtkbt/code/bt/stack/avdt/avdt_ccb.c
new file mode 100755
index 0000000..194af6b
--- /dev/null
+++ b/rtkbt/code/bt/stack/avdt/avdt_ccb.c
@@ -0,0 +1,471 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2002-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This module contains the channel control block state machine and
+ *  functions which operate on the channel control block.
+ *
+ ******************************************************************************/
+
+#include <string.h>
+#include "bt_types.h"
+#include "bt_target.h"
+#include "bt_utils.h"
+#include "avdt_api.h"
+#include "avdtc_api.h"
+#include "avdt_int.h"
+#include "bt_common.h"
+#include "btu.h"
+
+/*****************************************************************************
+** state machine constants and types
+*****************************************************************************/
+#if AVDT_DEBUG == TRUE
+
+/* verbose state strings for trace */
+const char * const avdt_ccb_st_str[] = {
+    "CCB_IDLE_ST",
+    "CCB_OPENING_ST",
+    "CCB_OPEN_ST",
+    "CCB_CLOSING_ST"
+};
+
+/* verbose event strings for trace */
+const char * const avdt_ccb_evt_str[] = {
+    "API_DISCOVER_REQ_EVT",
+    "API_GETCAP_REQ_EVT",
+    "API_START_REQ_EVT",
+    "API_SUSPEND_REQ_EVT",
+    "API_DISCOVER_RSP_EVT",
+    "API_GETCAP_RSP_EVT",
+    "API_START_RSP_EVT",
+    "API_SUSPEND_RSP_EVT",
+    "API_CONNECT_REQ_EVT",
+    "API_DISCONNECT_REQ_EVT",
+    "MSG_DISCOVER_CMD_EVT",
+    "MSG_GETCAP_CMD_EVT",
+    "MSG_START_CMD_EVT",
+    "MSG_SUSPEND_CMD_EVT",
+    "MSG_DISCOVER_RSP_EVT",
+    "MSG_GETCAP_RSP_EVT",
+    "MSG_START_RSP_EVT",
+    "MSG_SUSPEND_RSP_EVT",
+    "RCVRSP_EVT",
+    "SENDMSG_EVT",
+    "RET_TOUT_EVT",
+    "RSP_TOUT_EVT",
+    "IDLE_TOUT_EVT",
+    "UL_OPEN_EVT",
+    "UL_CLOSE_EVT",
+    "LL_OPEN_EVT",
+    "LL_CLOSE_EVT",
+    "LL_CONG_EVT"
+};
+
+#endif
+
+
+/* action function list */
+const tAVDT_CCB_ACTION avdt_ccb_action[] = {
+    avdt_ccb_chan_open,
+    avdt_ccb_chan_close,
+    avdt_ccb_chk_close,
+    avdt_ccb_hdl_discover_cmd,
+    avdt_ccb_hdl_discover_rsp,
+    avdt_ccb_hdl_getcap_cmd,
+    avdt_ccb_hdl_getcap_rsp,
+    avdt_ccb_hdl_start_cmd,
+    avdt_ccb_hdl_start_rsp,
+    avdt_ccb_hdl_suspend_cmd,
+    avdt_ccb_hdl_suspend_rsp,
+    avdt_ccb_snd_discover_cmd,
+    avdt_ccb_snd_discover_rsp,
+    avdt_ccb_snd_getcap_cmd,
+    avdt_ccb_snd_getcap_rsp,
+    avdt_ccb_snd_start_cmd,
+    avdt_ccb_snd_start_rsp,
+    avdt_ccb_snd_suspend_cmd,
+    avdt_ccb_snd_suspend_rsp,
+    avdt_ccb_clear_cmds,
+    avdt_ccb_cmd_fail,
+    avdt_ccb_free_cmd,
+    avdt_ccb_cong_state,
+    avdt_ccb_ret_cmd,
+    avdt_ccb_snd_cmd,
+    avdt_ccb_snd_msg,
+    avdt_ccb_set_reconn,
+    avdt_ccb_clr_reconn,
+    avdt_ccb_chk_reconn,
+    avdt_ccb_chk_timer,
+    avdt_ccb_set_conn,
+    avdt_ccb_set_disconn,
+    avdt_ccb_do_disconn,
+    avdt_ccb_ll_closed,
+    avdt_ccb_ll_opened,
+    avdt_ccb_dealloc
+};
+
+/* state table information */
+#define AVDT_CCB_ACTIONS            2       /* number of actions */
+#define AVDT_CCB_NEXT_STATE         2       /* position of next state */
+#define AVDT_CCB_NUM_COLS           3       /* number of columns in state tables */
+
+/* state table for idle state */
+const UINT8 avdt_ccb_st_idle[][AVDT_CCB_NUM_COLS] = {
+/* Event                      Action 1                    Action 2                    Next state */
+/* API_DISCOVER_REQ_EVT */   {AVDT_CCB_SND_DISCOVER_CMD,  AVDT_CCB_CHAN_OPEN,         AVDT_CCB_OPENING_ST},
+/* API_GETCAP_REQ_EVT */     {AVDT_CCB_SND_GETCAP_CMD,    AVDT_CCB_CHAN_OPEN,         AVDT_CCB_OPENING_ST},
+/* API_START_REQ_EVT */      {AVDT_CCB_IGNORE,            AVDT_CCB_IGNORE,            AVDT_CCB_IDLE_ST},
+/* API_SUSPEND_REQ_EVT */    {AVDT_CCB_IGNORE,            AVDT_CCB_IGNORE,            AVDT_CCB_IDLE_ST},
+/* API_DISCOVER_RSP_EVT */   {AVDT_CCB_IGNORE,            AVDT_CCB_IGNORE,            AVDT_CCB_IDLE_ST},
+/* API_GETCAP_RSP_EVT */     {AVDT_CCB_IGNORE,            AVDT_CCB_IGNORE,            AVDT_CCB_IDLE_ST},
+/* API_START_RSP_EVT */      {AVDT_CCB_IGNORE,            AVDT_CCB_IGNORE,            AVDT_CCB_IDLE_ST},
+/* API_SUSPEND_RSP_EVT */    {AVDT_CCB_IGNORE,            AVDT_CCB_IGNORE,            AVDT_CCB_IDLE_ST},
+/* API_CONNECT_REQ_EVT */    {AVDT_CCB_SET_CONN,          AVDT_CCB_CHAN_OPEN,         AVDT_CCB_OPENING_ST},
+/* API_DISCONNECT_REQ_EVT */ {AVDT_CCB_IGNORE,            AVDT_CCB_IGNORE,            AVDT_CCB_IDLE_ST},
+/* MSG_DISCOVER_CMD_EVT */   {AVDT_CCB_IGNORE,            AVDT_CCB_IGNORE,            AVDT_CCB_IDLE_ST},
+/* MSG_GETCAP_CMD_EVT */     {AVDT_CCB_IGNORE,            AVDT_CCB_IGNORE,            AVDT_CCB_IDLE_ST},
+/* MSG_START_CMD_EVT */      {AVDT_CCB_IGNORE,            AVDT_CCB_IGNORE,            AVDT_CCB_IDLE_ST},
+/* MSG_SUSPEND_CMD_EVT */    {AVDT_CCB_IGNORE,            AVDT_CCB_IGNORE,            AVDT_CCB_IDLE_ST},
+/* MSG_DISCOVER_RSP_EVT */   {AVDT_CCB_HDL_DISCOVER_RSP,  AVDT_CCB_IGNORE,            AVDT_CCB_IDLE_ST},
+/* MSG_GETCAP_RSP_EVT */     {AVDT_CCB_HDL_GETCAP_RSP,    AVDT_CCB_IGNORE,            AVDT_CCB_IDLE_ST},
+/* MSG_START_RSP_EVT */      {AVDT_CCB_HDL_START_RSP,     AVDT_CCB_IGNORE,            AVDT_CCB_IDLE_ST},
+/* MSG_SUSPEND_RSP_EVT */    {AVDT_CCB_HDL_SUSPEND_RSP,   AVDT_CCB_IGNORE,            AVDT_CCB_IDLE_ST},
+/* RCVRSP_EVT */             {AVDT_CCB_IGNORE,            AVDT_CCB_IGNORE,            AVDT_CCB_IDLE_ST},
+/* SENDMSG_EVT */            {AVDT_CCB_IGNORE,            AVDT_CCB_IGNORE,            AVDT_CCB_IDLE_ST},
+/* RET_TOUT_EVT */           {AVDT_CCB_IGNORE,            AVDT_CCB_IGNORE,            AVDT_CCB_IDLE_ST},
+/* RSP_TOUT_EVT */           {AVDT_CCB_IGNORE,            AVDT_CCB_IGNORE,            AVDT_CCB_IDLE_ST},
+/* IDLE_TOUT_EVT */          {AVDT_CCB_IGNORE,            AVDT_CCB_IGNORE,            AVDT_CCB_IDLE_ST},
+/* UL_OPEN_EVT */            {AVDT_CCB_CHAN_OPEN,         AVDT_CCB_IGNORE,            AVDT_CCB_OPENING_ST},
+/* UL_CLOSE_EVT */           {AVDT_CCB_IGNORE,            AVDT_CCB_IGNORE,            AVDT_CCB_IDLE_ST},
+/* LL_OPEN_EVT */            {AVDT_CCB_LL_OPENED,         AVDT_CCB_IGNORE,            AVDT_CCB_OPEN_ST},
+/* LL_CLOSE_EVT */           {AVDT_CCB_LL_CLOSED,         AVDT_CCB_IGNORE,            AVDT_CCB_IDLE_ST},
+/* LL_CONG_EVT */            {AVDT_CCB_IGNORE,            AVDT_CCB_IGNORE,            AVDT_CCB_IDLE_ST}
+};
+
+/* state table for opening state */
+const UINT8 avdt_ccb_st_opening[][AVDT_CCB_NUM_COLS] = {
+/* Event                      Action 1                    Action 2                    Next state */
+/* API_DISCOVER_REQ_EVT */   {AVDT_CCB_SND_DISCOVER_CMD,  AVDT_CCB_IGNORE,            AVDT_CCB_OPENING_ST},
+/* API_GETCAP_REQ_EVT */     {AVDT_CCB_SND_GETCAP_CMD,    AVDT_CCB_IGNORE,            AVDT_CCB_OPENING_ST},
+/* API_START_REQ_EVT */      {AVDT_CCB_IGNORE,            AVDT_CCB_IGNORE,            AVDT_CCB_OPENING_ST},
+/* API_SUSPEND_REQ_EVT */    {AVDT_CCB_IGNORE,            AVDT_CCB_IGNORE,            AVDT_CCB_OPENING_ST},
+/* API_DISCOVER_RSP_EVT */   {AVDT_CCB_IGNORE,            AVDT_CCB_IGNORE,            AVDT_CCB_OPENING_ST},
+/* API_GETCAP_RSP_EVT */     {AVDT_CCB_IGNORE,            AVDT_CCB_IGNORE,            AVDT_CCB_OPENING_ST},
+/* API_START_RSP_EVT */      {AVDT_CCB_IGNORE,            AVDT_CCB_IGNORE,            AVDT_CCB_OPENING_ST},
+/* API_SUSPEND_RSP_EVT */    {AVDT_CCB_IGNORE,            AVDT_CCB_IGNORE,            AVDT_CCB_OPENING_ST},
+/* API_CONNECT_REQ_EVT */    {AVDT_CCB_SET_CONN,          AVDT_CCB_IGNORE,            AVDT_CCB_OPENING_ST},
+/* API_DISCONNECT_REQ_EVT */ {AVDT_CCB_SET_DISCONN,       AVDT_CCB_DO_DISCONN,        AVDT_CCB_CLOSING_ST},
+/* MSG_DISCOVER_CMD_EVT */   {AVDT_CCB_IGNORE,            AVDT_CCB_IGNORE,            AVDT_CCB_OPENING_ST},
+/* MSG_GETCAP_CMD_EVT */     {AVDT_CCB_IGNORE,            AVDT_CCB_IGNORE,            AVDT_CCB_OPENING_ST},
+/* MSG_START_CMD_EVT */      {AVDT_CCB_IGNORE,            AVDT_CCB_IGNORE,            AVDT_CCB_OPENING_ST},
+/* MSG_SUSPEND_CMD_EVT */    {AVDT_CCB_IGNORE,            AVDT_CCB_IGNORE,            AVDT_CCB_OPENING_ST},
+/* MSG_DISCOVER_RSP_EVT */   {AVDT_CCB_IGNORE,            AVDT_CCB_IGNORE,            AVDT_CCB_OPENING_ST},
+/* MSG_GETCAP_RSP_EVT */     {AVDT_CCB_IGNORE,            AVDT_CCB_IGNORE,            AVDT_CCB_OPENING_ST},
+/* MSG_START_RSP_EVT */      {AVDT_CCB_IGNORE,            AVDT_CCB_IGNORE,            AVDT_CCB_OPENING_ST},
+/* MSG_SUSPEND_RSP_EVT */    {AVDT_CCB_IGNORE,            AVDT_CCB_IGNORE,            AVDT_CCB_OPENING_ST},
+/* RCVRSP_EVT */             {AVDT_CCB_IGNORE,            AVDT_CCB_IGNORE,            AVDT_CCB_OPENING_ST},
+/* SENDMSG_EVT */            {AVDT_CCB_IGNORE,            AVDT_CCB_IGNORE,            AVDT_CCB_OPENING_ST},
+/* RET_TOUT_EVT */           {AVDT_CCB_IGNORE,            AVDT_CCB_IGNORE,            AVDT_CCB_OPENING_ST},
+/* RSP_TOUT_EVT */           {AVDT_CCB_IGNORE,            AVDT_CCB_IGNORE,            AVDT_CCB_OPENING_ST},
+/* IDLE_TOUT_EVT */          {AVDT_CCB_IGNORE,            AVDT_CCB_IGNORE,            AVDT_CCB_OPENING_ST},
+/* UL_OPEN_EVT */            {AVDT_CCB_IGNORE,            AVDT_CCB_IGNORE,            AVDT_CCB_OPENING_ST},
+/* UL_CLOSE_EVT */           {AVDT_CCB_CLEAR_CMDS,        AVDT_CCB_CHAN_CLOSE,        AVDT_CCB_CLOSING_ST},
+/* LL_OPEN_EVT */            {AVDT_CCB_SND_CMD,           AVDT_CCB_LL_OPENED,         AVDT_CCB_OPEN_ST},
+/* LL_CLOSE_EVT */           {AVDT_CCB_LL_CLOSED,         AVDT_CCB_IGNORE,            AVDT_CCB_IDLE_ST},
+/* LL_CONG_EVT */            {AVDT_CCB_CONG_STATE,        AVDT_CCB_IGNORE,            AVDT_CCB_OPENING_ST}
+};
+
+/* state table for open state */
+const UINT8 avdt_ccb_st_open[][AVDT_CCB_NUM_COLS] = {
+/* Event                      Action 1                    Action 2                    Next state */
+/* API_DISCOVER_REQ_EVT */   {AVDT_CCB_SND_DISCOVER_CMD,  AVDT_CCB_SND_CMD,           AVDT_CCB_OPEN_ST},
+/* API_GETCAP_REQ_EVT */     {AVDT_CCB_SND_GETCAP_CMD,    AVDT_CCB_SND_CMD,           AVDT_CCB_OPEN_ST},
+/* API_START_REQ_EVT */      {AVDT_CCB_SND_START_CMD,     AVDT_CCB_SND_CMD,           AVDT_CCB_OPEN_ST},
+/* API_SUSPEND_REQ_EVT */    {AVDT_CCB_SND_SUSPEND_CMD,   AVDT_CCB_SND_CMD,           AVDT_CCB_OPEN_ST},
+/* API_DISCOVER_RSP_EVT */   {AVDT_CCB_SND_DISCOVER_RSP,  AVDT_CCB_SND_CMD,           AVDT_CCB_OPEN_ST},
+/* API_GETCAP_RSP_EVT */     {AVDT_CCB_SND_GETCAP_RSP,    AVDT_CCB_SND_CMD,           AVDT_CCB_OPEN_ST},
+/* API_START_RSP_EVT */      {AVDT_CCB_SND_START_RSP,     AVDT_CCB_SND_CMD,           AVDT_CCB_OPEN_ST},
+/* API_SUSPEND_RSP_EVT */    {AVDT_CCB_SND_SUSPEND_RSP,   AVDT_CCB_SND_CMD,           AVDT_CCB_OPEN_ST},
+/* API_CONNECT_REQ_EVT */    {AVDT_CCB_SET_CONN,          AVDT_CCB_LL_OPENED,         AVDT_CCB_OPEN_ST},
+/* API_DISCONNECT_REQ_EVT */ {AVDT_CCB_SET_DISCONN,       AVDT_CCB_DO_DISCONN,        AVDT_CCB_CLOSING_ST},
+/* MSG_DISCOVER_CMD_EVT */   {AVDT_CCB_HDL_DISCOVER_CMD,  AVDT_CCB_IGNORE,            AVDT_CCB_OPEN_ST},
+/* MSG_GETCAP_CMD_EVT */     {AVDT_CCB_HDL_GETCAP_CMD,    AVDT_CCB_IGNORE,            AVDT_CCB_OPEN_ST},
+/* MSG_START_CMD_EVT */      {AVDT_CCB_HDL_START_CMD,     AVDT_CCB_IGNORE,            AVDT_CCB_OPEN_ST},
+/* MSG_SUSPEND_CMD_EVT */    {AVDT_CCB_HDL_SUSPEND_CMD,   AVDT_CCB_IGNORE,            AVDT_CCB_OPEN_ST},
+/* MSG_DISCOVER_RSP_EVT */   {AVDT_CCB_CHK_CLOSE,         AVDT_CCB_HDL_DISCOVER_RSP,  AVDT_CCB_OPEN_ST},
+/* MSG_GETCAP_RSP_EVT */     {AVDT_CCB_CHK_CLOSE,         AVDT_CCB_HDL_GETCAP_RSP,    AVDT_CCB_OPEN_ST},
+/* MSG_START_RSP_EVT */      {AVDT_CCB_HDL_START_RSP,     AVDT_CCB_IGNORE,            AVDT_CCB_OPEN_ST},
+/* MSG_SUSPEND_RSP_EVT */    {AVDT_CCB_HDL_SUSPEND_RSP,   AVDT_CCB_IGNORE,            AVDT_CCB_OPEN_ST},
+/* RCVRSP_EVT */             {AVDT_CCB_FREE_CMD,          AVDT_CCB_SND_CMD,           AVDT_CCB_OPEN_ST},
+/* SENDMSG_EVT */            {AVDT_CCB_SND_MSG,           AVDT_CCB_IGNORE,            AVDT_CCB_OPEN_ST},
+/* RET_TOUT_EVT */           {AVDT_CCB_RET_CMD,           AVDT_CCB_IGNORE,            AVDT_CCB_OPEN_ST},
+/* RSP_TOUT_EVT */           {AVDT_CCB_CMD_FAIL,          AVDT_CCB_SND_CMD,           AVDT_CCB_OPEN_ST},
+/* IDLE_TOUT_EVT */          {AVDT_CCB_CLEAR_CMDS,        AVDT_CCB_CHAN_CLOSE,        AVDT_CCB_CLOSING_ST},
+/* UL_OPEN_EVT */            {AVDT_CCB_CHK_TIMER,         AVDT_CCB_IGNORE,            AVDT_CCB_OPEN_ST},
+/* UL_CLOSE_EVT */           {AVDT_CCB_CHK_CLOSE,         AVDT_CCB_IGNORE,            AVDT_CCB_OPEN_ST},
+/* LL_OPEN_EVT */            {AVDT_CCB_IGNORE,            AVDT_CCB_IGNORE,            AVDT_CCB_OPEN_ST},
+/* LL_CLOSE_EVT */           {AVDT_CCB_LL_CLOSED,         AVDT_CCB_IGNORE,            AVDT_CCB_IDLE_ST},
+/* LL_CONG_EVT */            {AVDT_CCB_CONG_STATE,        AVDT_CCB_SND_MSG,           AVDT_CCB_OPEN_ST}
+};
+
+/* state table for closing state */
+const UINT8 avdt_ccb_st_closing[][AVDT_CCB_NUM_COLS] = {
+/* Event                      Action 1                    Action 2                    Next state */
+/* API_DISCOVER_REQ_EVT */   {AVDT_CCB_SET_RECONN,        AVDT_CCB_SND_DISCOVER_CMD,  AVDT_CCB_CLOSING_ST},
+/* API_GETCAP_REQ_EVT */     {AVDT_CCB_SET_RECONN,        AVDT_CCB_SND_GETCAP_CMD,    AVDT_CCB_CLOSING_ST},
+/* API_START_REQ_EVT */      {AVDT_CCB_IGNORE,            AVDT_CCB_IGNORE,            AVDT_CCB_CLOSING_ST},
+/* API_SUSPEND_REQ_EVT */    {AVDT_CCB_IGNORE,            AVDT_CCB_IGNORE,            AVDT_CCB_CLOSING_ST},
+/* API_DISCOVER_RSP_EVT */   {AVDT_CCB_IGNORE,            AVDT_CCB_IGNORE,            AVDT_CCB_CLOSING_ST},
+/* API_GETCAP_RSP_EVT */     {AVDT_CCB_IGNORE,            AVDT_CCB_IGNORE,            AVDT_CCB_CLOSING_ST},
+/* API_START_RSP_EVT */      {AVDT_CCB_IGNORE,            AVDT_CCB_IGNORE,            AVDT_CCB_CLOSING_ST},
+/* API_SUSPEND_RSP_EVT */    {AVDT_CCB_IGNORE,            AVDT_CCB_IGNORE,            AVDT_CCB_CLOSING_ST},
+/* API_CONNECT_REQ_EVT */    {AVDT_CCB_SET_RECONN,        AVDT_CCB_SET_CONN,          AVDT_CCB_CLOSING_ST},
+/* API_DISCONNECT_REQ_EVT */ {AVDT_CCB_CLR_RECONN,        AVDT_CCB_SET_DISCONN,       AVDT_CCB_CLOSING_ST},
+/* MSG_DISCOVER_CMD_EVT */   {AVDT_CCB_IGNORE,            AVDT_CCB_IGNORE,            AVDT_CCB_CLOSING_ST},
+/* MSG_GETCAP_CMD_EVT */     {AVDT_CCB_IGNORE,            AVDT_CCB_IGNORE,            AVDT_CCB_CLOSING_ST},
+/* MSG_START_CMD_EVT */      {AVDT_CCB_IGNORE,            AVDT_CCB_IGNORE,            AVDT_CCB_CLOSING_ST},
+/* MSG_SUSPEND_CMD_EVT */    {AVDT_CCB_IGNORE,            AVDT_CCB_IGNORE,            AVDT_CCB_CLOSING_ST},
+/* MSG_DISCOVER_RSP_EVT */   {AVDT_CCB_HDL_DISCOVER_RSP,  AVDT_CCB_IGNORE,            AVDT_CCB_CLOSING_ST},
+/* MSG_GETCAP_RSP_EVT */     {AVDT_CCB_HDL_GETCAP_RSP,    AVDT_CCB_IGNORE,            AVDT_CCB_CLOSING_ST},
+/* MSG_START_RSP_EVT */      {AVDT_CCB_HDL_START_RSP,     AVDT_CCB_IGNORE,            AVDT_CCB_CLOSING_ST},
+/* MSG_SUSPEND_RSP_EVT */    {AVDT_CCB_HDL_SUSPEND_RSP,   AVDT_CCB_IGNORE,            AVDT_CCB_CLOSING_ST},
+/* RCVRSP_EVT */             {AVDT_CCB_IGNORE,            AVDT_CCB_IGNORE,            AVDT_CCB_CLOSING_ST},
+/* SENDMSG_EVT */            {AVDT_CCB_IGNORE,            AVDT_CCB_IGNORE,            AVDT_CCB_CLOSING_ST},
+/* RET_TOUT_EVT */           {AVDT_CCB_IGNORE,            AVDT_CCB_IGNORE,            AVDT_CCB_CLOSING_ST},
+/* RSP_TOUT_EVT */           {AVDT_CCB_IGNORE,            AVDT_CCB_IGNORE,            AVDT_CCB_CLOSING_ST},
+/* IDLE_TOUT_EVT */          {AVDT_CCB_IGNORE,            AVDT_CCB_IGNORE,            AVDT_CCB_CLOSING_ST},
+/* UL_OPEN_EVT */            {AVDT_CCB_SET_RECONN,        AVDT_CCB_IGNORE,            AVDT_CCB_CLOSING_ST},
+/* UL_CLOSE_EVT */           {AVDT_CCB_CLR_RECONN,        AVDT_CCB_IGNORE,            AVDT_CCB_CLOSING_ST},
+/* LL_OPEN_EVT */            {AVDT_CCB_IGNORE,            AVDT_CCB_IGNORE,            AVDT_CCB_CLOSING_ST},
+/* LL_CLOSE_EVT */           {AVDT_CCB_CHK_RECONN,        AVDT_CCB_IGNORE,            AVDT_CCB_IDLE_ST},
+/* LL_CONG_EVT */            {AVDT_CCB_IGNORE,            AVDT_CCB_IGNORE,            AVDT_CCB_CLOSING_ST}
+};
+
+/* type for state table */
+typedef const UINT8 (*tAVDT_CCB_ST_TBL)[AVDT_CCB_NUM_COLS];
+
+/* state table */
+const tAVDT_CCB_ST_TBL avdt_ccb_st_tbl[] = {
+    avdt_ccb_st_idle,
+    avdt_ccb_st_opening,
+    avdt_ccb_st_open,
+    avdt_ccb_st_closing
+};
+
+/*******************************************************************************
+**
+** Function         avdt_ccb_init
+**
+** Description      Initialize channel control block module.
+**
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_ccb_init(void)
+{
+    memset(&avdt_cb.ccb[0], 0, sizeof(tAVDT_CCB) * AVDT_NUM_LINKS);
+    avdt_cb.p_ccb_act = (tAVDT_CCB_ACTION *) avdt_ccb_action;
+}
+
+/*******************************************************************************
+**
+** Function         avdt_ccb_event
+**
+** Description      State machine event handling function for ccb
+**
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_ccb_event(tAVDT_CCB *p_ccb, UINT8 event, tAVDT_CCB_EVT *p_data)
+{
+    tAVDT_CCB_ST_TBL    state_table;
+    UINT8               action;
+    int                 i;
+
+#if AVDT_DEBUG == TRUE
+    AVDT_TRACE_EVENT("CCB ccb=%d event=%s state=%s", avdt_ccb_to_idx(p_ccb), avdt_ccb_evt_str[event], avdt_ccb_st_str[p_ccb->state]);
+#endif
+
+    /* look up the state table for the current state */
+    state_table = avdt_ccb_st_tbl[p_ccb->state];
+
+    /* set next state */
+    if (p_ccb->state != state_table[event][AVDT_CCB_NEXT_STATE]) {
+        p_ccb->state = state_table[event][AVDT_CCB_NEXT_STATE];
+    }
+
+    /* execute action functions */
+    for (i = 0; i < AVDT_CCB_ACTIONS; i++)
+    {
+        if ((action = state_table[event][i]) != AVDT_CCB_IGNORE)
+        {
+            (*avdt_cb.p_ccb_act[action])(p_ccb, p_data);
+        }
+        else
+        {
+            break;
+        }
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         avdt_ccb_by_bd
+**
+** Description      This lookup function finds the ccb for a BD address.
+**
+**
+** Returns          pointer to the ccb, or NULL if none found.
+**
+*******************************************************************************/
+tAVDT_CCB *avdt_ccb_by_bd(BD_ADDR bd_addr)
+{
+    tAVDT_CCB   *p_ccb = &avdt_cb.ccb[0];
+    int         i;
+
+    for (i = 0; i < AVDT_NUM_LINKS; i++, p_ccb++)
+    {
+        /* if allocated ccb has matching ccb */
+        if (p_ccb->allocated && (!memcmp(p_ccb->peer_addr, bd_addr, BD_ADDR_LEN)))
+        {
+            break;
+        }
+    }
+
+    if (i == AVDT_NUM_LINKS)
+    {
+        /* if no ccb found */
+        p_ccb = NULL;
+
+        AVDT_TRACE_DEBUG("No ccb for addr %02x-%02x-%02x-%02x-%02x-%02x",
+                          bd_addr[0], bd_addr[1], bd_addr[2], bd_addr[3], bd_addr[4], bd_addr[5]);
+    }
+    return p_ccb;
+}
+
+/*******************************************************************************
+**
+** Function         avdt_ccb_alloc
+**
+** Description      Allocate a channel control block.
+**
+**
+** Returns          pointer to the ccb, or NULL if none could be allocated.
+**
+*******************************************************************************/
+tAVDT_CCB *avdt_ccb_alloc(BD_ADDR bd_addr)
+{
+    tAVDT_CCB   *p_ccb = &avdt_cb.ccb[0];
+    int         i;
+
+    for (i = 0; i < AVDT_NUM_LINKS; i++, p_ccb++)
+    {
+        if (!p_ccb->allocated)
+        {
+            p_ccb->allocated = TRUE;
+            memcpy(p_ccb->peer_addr, bd_addr, BD_ADDR_LEN);
+            p_ccb->cmd_q = fixed_queue_new(SIZE_MAX);
+            p_ccb->rsp_q = fixed_queue_new(SIZE_MAX);
+            p_ccb->idle_ccb_timer = alarm_new("avdt_ccb.idle_ccb_timer");
+            p_ccb->ret_ccb_timer = alarm_new("avdt_ccb.ret_ccb_timer");
+            p_ccb->rsp_ccb_timer = alarm_new("avdt_ccb.rsp_ccb_timer");
+            AVDT_TRACE_DEBUG("avdt_ccb_alloc %d", i);
+            break;
+        }
+    }
+
+    if (i == AVDT_NUM_LINKS)
+    {
+        /* out of ccbs */
+        p_ccb = NULL;
+        AVDT_TRACE_WARNING("Out of ccbs");
+    }
+    return p_ccb;
+}
+
+/*******************************************************************************
+**
+** Function         avdt_ccb_dealloc
+**
+** Description      Deallocate a stream control block.
+**
+**
+** Returns          void.
+**
+*******************************************************************************/
+void avdt_ccb_dealloc(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
+{
+    UNUSED(p_data);
+
+    AVDT_TRACE_DEBUG("avdt_ccb_dealloc %d", avdt_ccb_to_idx(p_ccb));
+    alarm_free(p_ccb->idle_ccb_timer);
+    alarm_free(p_ccb->ret_ccb_timer);
+    alarm_free(p_ccb->rsp_ccb_timer);
+    fixed_queue_free(p_ccb->cmd_q, NULL);
+    fixed_queue_free(p_ccb->rsp_q, NULL);
+    memset(p_ccb, 0, sizeof(tAVDT_CCB));
+}
+
+/*******************************************************************************
+**
+** Function         avdt_ccb_to_idx
+**
+** Description      Given a pointer to an ccb, return its index.
+**
+**
+** Returns          Index of ccb.
+**
+*******************************************************************************/
+UINT8 avdt_ccb_to_idx(tAVDT_CCB *p_ccb)
+{
+    /* use array arithmetic to determine index */
+    return (UINT8) (p_ccb - avdt_cb.ccb);
+}
+
+/*******************************************************************************
+**
+** Function         avdt_ccb_by_idx
+**
+** Description      Return ccb pointer based on ccb index.
+**
+**
+** Returns          pointer to the ccb, or NULL if none found.
+**
+*******************************************************************************/
+tAVDT_CCB *avdt_ccb_by_idx(UINT8 idx)
+{
+    tAVDT_CCB   *p_ccb;
+
+    /* verify index */
+    if (idx < AVDT_NUM_LINKS)
+    {
+        p_ccb = &avdt_cb.ccb[idx];
+    }
+    else
+    {
+        p_ccb = NULL;
+        AVDT_TRACE_WARNING("No ccb for idx %d", idx);
+    }
+    return p_ccb;
+}
+
diff --git a/rtkbt/code/bt/stack/avdt/avdt_ccb_act.c b/rtkbt/code/bt/stack/avdt/avdt_ccb_act.c
new file mode 100755
index 0000000..41b74e1
--- /dev/null
+++ b/rtkbt/code/bt/stack/avdt/avdt_ccb_act.c
@@ -0,0 +1,1116 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2006-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This module contains the action functions associated with the channel
+ *  control block state machine.
+ *
+ ******************************************************************************/
+
+#include <string.h>
+#include "bt_types.h"
+#include "bt_target.h"
+#include "bt_utils.h"
+#include "avdt_api.h"
+#include "avdtc_api.h"
+#include "avdt_int.h"
+#include "bt_common.h"
+#include "btu.h"
+#include "btm_api.h"
+
+extern fixed_queue_t *btu_general_alarm_queue;
+
+/*******************************************************************************
+**
+** Function         avdt_ccb_clear_ccb
+**
+** Description      This function clears out certain buffers, queues, and
+**                  other data elements of a ccb.
+**
+**
+** Returns          void.
+**
+*******************************************************************************/
+static void avdt_ccb_clear_ccb(tAVDT_CCB *p_ccb)
+{
+    BT_HDR          *p_buf;
+
+    /* clear certain ccb variables */
+    p_ccb->cong = FALSE;
+    p_ccb->ret_count = 0;
+
+    /* free message being fragmented */
+    osi_free_and_reset((void **)&p_ccb->p_curr_msg);
+
+    /* free message being reassembled */
+    osi_free_and_reset((void **)&p_ccb->p_rx_msg);
+
+    /* clear out response queue */
+    while ((p_buf = (BT_HDR *) fixed_queue_try_dequeue(p_ccb->rsp_q)) != NULL)
+        osi_free(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         avdt_ccb_chan_open
+**
+** Description      This function calls avdt_ad_open_req() to
+**                  initiate a signaling channel connection.
+**
+**
+** Returns          void.
+**
+*******************************************************************************/
+void avdt_ccb_chan_open(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
+{
+    UNUSED(p_data);
+
+    BTM_SetOutService(p_ccb->peer_addr, BTM_SEC_SERVICE_AVDTP, AVDT_CHAN_SIG);
+    avdt_ad_open_req(AVDT_CHAN_SIG, p_ccb, NULL, AVDT_INT);
+}
+
+/*******************************************************************************
+**
+** Function         avdt_ccb_chan_close
+**
+** Description      This function calls avdt_ad_close_req() to close a
+**                  signaling channel connection.
+**
+**
+** Returns          void.
+**
+*******************************************************************************/
+void avdt_ccb_chan_close(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
+{
+    UNUSED(p_data);
+
+    /* close the transport channel used by this CCB */
+    avdt_ad_close_req(AVDT_CHAN_SIG, p_ccb, NULL);
+}
+
+/*******************************************************************************
+**
+** Function         avdt_ccb_chk_close
+**
+** Description      This function checks for active streams on this CCB.
+**                  If there are none, it starts an idle timer.
+**
+**
+** Returns          void.
+**
+*******************************************************************************/
+void avdt_ccb_chk_close(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
+{
+    int         i;
+    tAVDT_SCB   *p_scb = &avdt_cb.scb[0];
+    UNUSED(p_data);
+
+    /* see if there are any active scbs associated with this ccb */
+    for (i = 0; i < AVDT_NUM_SEPS; i++, p_scb++)
+    {
+        if ((p_scb->allocated) && (p_scb->p_ccb == p_ccb))
+        {
+            break;
+        }
+    }
+
+    /* if no active scbs start idle timer */
+    if (i == AVDT_NUM_SEPS)
+    {
+        alarm_cancel(p_ccb->ret_ccb_timer);
+        alarm_cancel(p_ccb->rsp_ccb_timer);
+        period_ms_t interval_ms = avdt_cb.rcb.idle_tout * 1000;
+        alarm_set_on_queue(p_ccb->idle_ccb_timer, interval_ms,
+                           avdt_ccb_idle_ccb_timer_timeout, p_ccb,
+                           btu_general_alarm_queue);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         avdt_ccb_hdl_discover_cmd
+**
+** Description      This function is called when a discover command is
+**                  received from the peer.  It gathers up the stream
+**                  information for all allocated streams and initiates
+**                  sending of a discover response.
+**
+**
+** Returns          void.
+**
+*******************************************************************************/
+void avdt_ccb_hdl_discover_cmd(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
+{
+    tAVDT_SEP_INFO      sep_info[AVDT_NUM_SEPS];
+    tAVDT_SCB           *p_scb = &avdt_cb.scb[0];
+    int                 i;
+
+    p_data->msg.discover_rsp.p_sep_info = sep_info;
+    p_data->msg.discover_rsp.num_seps = 0;
+
+    /* for all allocated scbs */
+    for (i = 0; i < AVDT_NUM_SEPS; i++, p_scb++)
+    {
+        if (p_scb->allocated)
+        {
+            /* copy sep info */
+            sep_info[p_data->msg.discover_rsp.num_seps].in_use = p_scb->in_use;
+            sep_info[p_data->msg.discover_rsp.num_seps].seid = i + 1;
+            sep_info[p_data->msg.discover_rsp.num_seps].media_type = p_scb->cs.media_type;
+            sep_info[p_data->msg.discover_rsp.num_seps].tsep = p_scb->cs.tsep;
+
+            p_data->msg.discover_rsp.num_seps++;
+        }
+    }
+
+    /* send response */
+    avdt_ccb_event(p_ccb, AVDT_CCB_API_DISCOVER_RSP_EVT, p_data);
+}
+
+/*******************************************************************************
+**
+** Function         avdt_ccb_hdl_discover_rsp
+**
+** Description      This function is called when a discover response or
+**                  reject is received from the peer.  It calls the application
+**                  callback function with the results.
+**
+**
+** Returns          void.
+**
+*******************************************************************************/
+void avdt_ccb_hdl_discover_rsp(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
+{
+    /* we're done with procedure */
+    p_ccb->proc_busy = FALSE;
+
+    /* call app callback with results */
+    (*p_ccb->proc_cback)(0, p_ccb->peer_addr, AVDT_DISCOVER_CFM_EVT,
+                         (tAVDT_CTRL *)(&p_data->msg.discover_rsp));
+}
+
+/*******************************************************************************
+**
+** Function         avdt_ccb_hdl_getcap_cmd
+**
+** Description      This function is called when a get capabilities command
+**                  is received from the peer.  It retrieves the stream
+**                  configuration for the requested stream and initiates
+**                  sending of a get capabilities response.
+**
+**
+** Returns          void.
+**
+*******************************************************************************/
+void avdt_ccb_hdl_getcap_cmd(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
+{
+    tAVDT_SCB       *p_scb;
+
+    /* look up scb for seid sent to us */
+    p_scb = avdt_scb_by_hdl(p_data->msg.single.seid);
+
+    p_data->msg.svccap.p_cfg = &p_scb->cs.cfg;
+
+    avdt_ccb_event(p_ccb, AVDT_CCB_API_GETCAP_RSP_EVT, p_data);
+}
+
+/*******************************************************************************
+**
+** Function         avdt_ccb_hdl_getcap_rsp
+**
+** Description      This function is called with a get capabilities response
+**                  or reject is received from the peer.  It calls the
+**                  application callback function with the results.
+**
+**
+** Returns          void.
+**
+*******************************************************************************/
+void avdt_ccb_hdl_getcap_rsp(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
+{
+    /* we're done with procedure */
+    p_ccb->proc_busy = FALSE;
+
+    /* call app callback with results */
+    (*p_ccb->proc_cback)(0, p_ccb->peer_addr, AVDT_GETCAP_CFM_EVT,
+                         (tAVDT_CTRL *)(&p_data->msg.svccap));
+}
+
+/*******************************************************************************
+**
+** Function         avdt_ccb_hdl_start_cmd
+**
+** Description      This function is called when a start command is received
+**                  from the peer.  It verifies that all requested streams
+**                  are in the proper state.  If so, it initiates sending of
+**                  a start response.  Otherwise it sends a start reject.
+**
+**
+** Returns          void.
+**
+*******************************************************************************/
+void avdt_ccb_hdl_start_cmd(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
+{
+    UINT8   err_code = 0;
+
+    /* verify all streams in the right state */
+    UINT8 seid = avdt_scb_verify(p_ccb, AVDT_VERIFY_START, p_data->msg.multi.seid_list,
+                                 p_data->msg.multi.num_seps, &err_code);
+    if (seid == 0 && err_code == 0)
+    {
+        /* we're ok, send response */
+        avdt_ccb_event(p_ccb, AVDT_CCB_API_START_RSP_EVT, p_data);
+    } else {
+        /* not ok, send reject */
+        p_data->msg.hdr.err_code = err_code;
+        p_data->msg.hdr.err_param = seid;
+        avdt_msg_send_rej(p_ccb, AVDT_SIG_START, &p_data->msg);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         avdt_ccb_hdl_start_rsp
+**
+** Description      This function is called when a start response or reject
+**                  is received from the peer.  Using the SEIDs stored in the
+**                  current command message, it sends a start response or start
+**                  reject event to each SCB associated with the command.
+**
+**
+** Returns          void.
+**
+*******************************************************************************/
+void avdt_ccb_hdl_start_rsp(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
+{
+    UINT8       event;
+    int         i;
+    UINT8       *p;
+    tAVDT_SCB   *p_scb;
+
+    /* determine rsp or rej event */
+    event = (p_data->msg.hdr.err_code == 0) ?
+            AVDT_SCB_MSG_START_RSP_EVT : AVDT_SCB_MSG_START_REJ_EVT;
+
+    /* get to where seid's are stashed in current cmd */
+    p = (UINT8 *)(p_ccb->p_curr_cmd + 1);
+
+    /* little trick here; length of current command equals number of streams */
+    for (i = 0; i < p_ccb->p_curr_cmd->len; i++)
+    {
+        if ((p_scb = avdt_scb_by_hdl(p[i])) != NULL)
+        {
+            avdt_scb_event(p_scb, event, (tAVDT_SCB_EVT *) &p_data->msg);
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         avdt_ccb_hdl_suspend_cmd
+**
+** Description      This function is called when a suspend command is received
+**                  from the peer.  It verifies that all requested streams are
+**                  in the proper state.  If so, it initiates sending of a
+**                  suspend response.  Otherwise it sends a suspend reject.
+
+**
+**
+** Returns          void.
+**
+*******************************************************************************/
+void avdt_ccb_hdl_suspend_cmd(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
+{
+    UINT8   seid;
+    UINT8   err_code = 0;
+
+    /* verify all streams in the right state */
+    if ((seid = avdt_scb_verify(p_ccb, AVDT_VERIFY_SUSPEND, p_data->msg.multi.seid_list,
+                                p_data->msg.multi.num_seps, &err_code)) == 0 &&
+                                err_code == 0)
+    {
+        /* we're ok, send response */
+        avdt_ccb_event(p_ccb, AVDT_CCB_API_SUSPEND_RSP_EVT, p_data);
+    }
+    else
+    {
+        /* not ok, send reject */
+        p_data->msg.hdr.err_code = err_code;
+        p_data->msg.hdr.err_param = seid;
+        avdt_msg_send_rej(p_ccb, AVDT_SIG_SUSPEND, &p_data->msg);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         avdt_ccb_hdl_suspend_rsp
+**
+** Description      This function is called when a suspend response or reject
+**                  is received from the peer.  Using the SEIDs stored in the
+**                  current command message, it sends a suspend response or
+**                  suspend reject event to each SCB associated with the command.
+**
+**
+**
+** Returns          void.
+**
+*******************************************************************************/
+void avdt_ccb_hdl_suspend_rsp(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
+{
+    UINT8       event;
+    int         i;
+    UINT8       *p;
+    tAVDT_SCB   *p_scb;
+
+    /* determine rsp or rej event */
+    event = (p_data->msg.hdr.err_code == 0) ?
+            AVDT_SCB_MSG_SUSPEND_RSP_EVT : AVDT_SCB_MSG_SUSPEND_REJ_EVT;
+
+    /* get to where seid's are stashed in current cmd */
+    p = (UINT8 *)(p_ccb->p_curr_cmd + 1);
+
+    /* little trick here; length of current command equals number of streams */
+    for (i = 0; i < p_ccb->p_curr_cmd->len; i++)
+    {
+        if ((p_scb = avdt_scb_by_hdl(p[i])) != NULL)
+        {
+            avdt_scb_event(p_scb, event, (tAVDT_SCB_EVT *) &p_data->msg);
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         avdt_ccb_snd_discover_cmd
+**
+** Description      This function is called to send a discover command to the
+**                  peer.  It copies variables needed for the procedure from
+**                  the event to the CCB.  It marks the CCB as busy and then
+**                  sends a discover command.
+**
+**
+** Returns          void.
+**
+*******************************************************************************/
+void avdt_ccb_snd_discover_cmd(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
+{
+    /* store info in ccb struct */
+    p_ccb->p_proc_data = p_data->discover.p_sep_info;
+    p_ccb->proc_cback = p_data->discover.p_cback;
+    p_ccb->proc_param = p_data->discover.num_seps;
+
+    /* we're busy */
+    p_ccb->proc_busy = TRUE;
+
+    /* build and queue discover req */
+    avdt_msg_send_cmd(p_ccb, NULL, AVDT_SIG_DISCOVER, NULL);
+}
+
+/*******************************************************************************
+**
+** Function         avdt_ccb_snd_discover_rsp
+**
+** Description      This function is called to send a discover response to
+**                  the peer.  It takes the stream information passed in the
+**                  event and sends a discover response.
+**
+**
+** Returns          void.
+**
+*******************************************************************************/
+void avdt_ccb_snd_discover_rsp(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
+{
+    /* send response */
+    avdt_msg_send_rsp(p_ccb, AVDT_SIG_DISCOVER, &p_data->msg);
+}
+
+/*******************************************************************************
+**
+** Function         avdt_ccb_snd_getcap_cmd
+**
+** Description      This function is called to send a get capabilities command
+**                  to the peer.  It copies variables needed for the procedure
+**                  from the event to the CCB.  It marks the CCB as busy and
+**                  then sends a get capabilities command.
+**
+**
+** Returns          void.
+**
+*******************************************************************************/
+void avdt_ccb_snd_getcap_cmd(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
+{
+    UINT8 sig_id = AVDT_SIG_GETCAP;
+
+    /* store info in ccb struct */
+    p_ccb->p_proc_data = p_data->getcap.p_cfg;
+    p_ccb->proc_cback = p_data->getcap.p_cback;
+
+    /* we're busy */
+    p_ccb->proc_busy = TRUE;
+
+    /* build and queue discover req */
+    if (p_data->msg.hdr.sig_id == AVDT_SIG_GET_ALLCAP)
+        sig_id = AVDT_SIG_GET_ALLCAP;
+
+    avdt_msg_send_cmd(p_ccb, NULL, sig_id, (tAVDT_MSG *) &p_data->getcap.single);
+}
+
+/*******************************************************************************
+**
+** Function         avdt_ccb_snd_getcap_rsp
+**
+** Description      This function is called to send a get capabilities response
+**                  to the peer.  It takes the stream information passed in the
+**                  event and sends a get capabilities response.
+**
+**
+** Returns          void.
+**
+*******************************************************************************/
+void avdt_ccb_snd_getcap_rsp(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
+{
+    UINT8 sig_id = AVDT_SIG_GETCAP;
+
+    if (p_data->msg.hdr.sig_id == AVDT_SIG_GET_ALLCAP)
+        sig_id = AVDT_SIG_GET_ALLCAP;
+
+    /* send response */
+    avdt_msg_send_rsp(p_ccb, sig_id, &p_data->msg);
+}
+
+/*******************************************************************************
+**
+** Function         avdt_ccb_snd_start_cmd
+**
+** Description      This function is called to send a start command to the
+**                  peer.  It verifies that all requested streams are in the
+**                  proper state.  If so, it sends a start command.  Otherwise
+**                  send ourselves back a start reject.
+**
+**
+** Returns          void.
+**
+*******************************************************************************/
+void avdt_ccb_snd_start_cmd(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
+{
+    int             i;
+    tAVDT_SCB       *p_scb;
+    tAVDT_MSG       avdt_msg;
+    UINT8           seid_list[AVDT_NUM_SEPS];
+
+    /* make copy of our seid list */
+    memcpy(seid_list, p_data->msg.multi.seid_list, p_data->msg.multi.num_seps);
+
+    /* verify all streams in the right state */
+    if ((avdt_msg.hdr.err_param = avdt_scb_verify(p_ccb, AVDT_VERIFY_OPEN, p_data->msg.multi.seid_list,
+                                         p_data->msg.multi.num_seps, &avdt_msg.hdr.err_code)) == 0)
+    {
+        /* set peer seid list in messsage */
+        avdt_scb_peer_seid_list(&p_data->msg.multi);
+
+        /* send command */
+        avdt_msg_send_cmd(p_ccb, seid_list, AVDT_SIG_START, &p_data->msg);
+    }
+    else
+    {
+        /* failed; send ourselves a reject for each stream */
+        for (i = 0; i < p_data->msg.multi.num_seps; i++)
+        {
+            if ((p_scb = avdt_scb_by_hdl(seid_list[i])) != NULL)
+            {
+                avdt_scb_event(p_scb, AVDT_SCB_MSG_START_REJ_EVT, (tAVDT_SCB_EVT *) &avdt_msg.hdr);
+            }
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         avdt_ccb_snd_start_rsp
+**
+** Description      This function is called to send a start response to the
+**                  peer.  It takes the stream information passed in the event
+**                  and sends a start response.  Then it sends a start event
+**                  to the SCB for each stream.
+**
+**
+** Returns          void.
+**
+*******************************************************************************/
+void avdt_ccb_snd_start_rsp(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
+{
+    tAVDT_SCB *p_scb;
+    int i;
+
+    /* send response message */
+    avdt_msg_send_rsp(p_ccb, AVDT_SIG_START, &p_data->msg);
+
+    /* send start event to each scb */
+    for (i = 0; i < p_data->msg.multi.num_seps; i++)
+    {
+        if ((p_scb = avdt_scb_by_hdl(p_data->msg.multi.seid_list[i])) != NULL)
+        {
+            avdt_scb_event(p_scb, AVDT_SCB_MSG_START_CMD_EVT, NULL);
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         avdt_ccb_snd_suspend_cmd
+**
+** Description      This function is called to send a suspend command to the
+**                  peer.  It verifies that all requested streams are in the
+**                  proper state.  If so, it sends a suspend command.
+**                  Otherwise it calls the callback function for each requested
+**                  stream and sends a suspend confirmation with failure.
+**
+**
+** Returns          void.
+**
+*******************************************************************************/
+void avdt_ccb_snd_suspend_cmd(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
+{
+    int             i;
+    tAVDT_SCB       *p_scb;
+    tAVDT_MSG       avdt_msg;
+    UINT8           seid_list[AVDT_NUM_SEPS];
+
+    /* make copy of our seid list */
+    memcpy(seid_list, p_data->msg.multi.seid_list, p_data->msg.multi.num_seps);
+
+    /* verify all streams in the right state */
+    if ((avdt_msg.hdr.err_param = avdt_scb_verify(p_ccb, AVDT_VERIFY_STREAMING, p_data->msg.multi.seid_list,
+                                         p_data->msg.multi.num_seps, &avdt_msg.hdr.err_code)) == 0)
+    {
+        /* set peer seid list in messsage */
+        avdt_scb_peer_seid_list(&p_data->msg.multi);
+
+        /* send command */
+        avdt_msg_send_cmd(p_ccb, seid_list, AVDT_SIG_SUSPEND, &p_data->msg);
+    }
+    else
+    {
+        /* failed; send ourselves a reject for each stream */
+        for (i = 0; i < p_data->msg.multi.num_seps; i++)
+        {
+            if ((p_scb = avdt_scb_by_hdl(seid_list[i])) != NULL)
+            {
+                avdt_scb_event(p_scb, AVDT_SCB_MSG_SUSPEND_REJ_EVT, (tAVDT_SCB_EVT *) &avdt_msg.hdr);
+            }
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         avdt_ccb_snd_suspend_rsp
+**
+** Description      This function is called to send a suspend response to the
+**                  peer.  It takes the stream information passed in the event
+**                  and sends a suspend response.  Then it sends a suspend event
+**                  to the SCB for each stream.
+**
+**
+** Returns          void.
+**
+*******************************************************************************/
+void avdt_ccb_snd_suspend_rsp(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
+{
+    tAVDT_SCB *p_scb;
+    int i;
+
+    /* send response message */
+    avdt_msg_send_rsp(p_ccb, AVDT_SIG_SUSPEND, &p_data->msg);
+
+    /* send start event to each scb */
+    for (i = 0; i < p_data->msg.multi.num_seps; i++)
+    {
+        if ((p_scb = avdt_scb_by_hdl(p_data->msg.multi.seid_list[i])) != NULL)
+        {
+            avdt_scb_event(p_scb, AVDT_SCB_MSG_SUSPEND_CMD_EVT, NULL);
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         avdt_ccb_clear_cmds
+**
+** Description      This function is called when the signaling channel is
+**                  closed to clean up any pending commands.  For each pending
+**                  command in the command queue, it frees the command and
+**                  calls the application callback function indicating failure.
+**                  Certain CCB variables are also initialized.
+**
+**
+** Returns          void.
+**
+*******************************************************************************/
+void avdt_ccb_clear_cmds(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
+{
+    int             i;
+    tAVDT_SCB       *p_scb = &avdt_cb.scb[0];
+    UINT8           err_code = AVDT_ERR_CONNECT;
+    UNUSED(p_data);
+
+    /* clear the ccb */
+    avdt_ccb_clear_ccb(p_ccb);
+
+    /* clear out command queue; this is a little tricky here; we need
+    ** to handle the case where there is a command on deck in p_curr_cmd,
+    ** plus we need to clear out the queue
+    */
+    do
+    {
+        /* we know p_curr_cmd = NULL after this */
+        avdt_ccb_cmd_fail(p_ccb, (tAVDT_CCB_EVT *) &err_code);
+
+        /* set up next message */
+        p_ccb->p_curr_cmd = (BT_HDR *) fixed_queue_try_dequeue(p_ccb->cmd_q);
+
+    } while (p_ccb->p_curr_cmd != NULL);
+
+    /* send a CC_CLOSE_EVT any active scbs associated with this ccb */
+    for (i = 0; i < AVDT_NUM_SEPS; i++, p_scb++)
+    {
+        if ((p_scb->allocated) && (p_scb->p_ccb == p_ccb))
+        {
+            avdt_scb_event(p_scb, AVDT_SCB_CC_CLOSE_EVT, NULL);
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         avdt_ccb_cmd_fail
+**
+** Description      This function is called when there is a response timeout.
+**                  The currently pending command is freed and we fake a
+**                  reject message back to ourselves.
+**
+**
+** Returns          void.
+**
+*******************************************************************************/
+void avdt_ccb_cmd_fail(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
+{
+    tAVDT_MSG       msg;
+    UINT8           evt;
+    tAVDT_SCB       *p_scb;
+
+    if (p_ccb->p_curr_cmd != NULL)
+    {
+        /* set up data */
+        msg.hdr.err_code = p_data->err_code;
+        msg.hdr.err_param = 0;
+        msg.hdr.ccb_idx = avdt_ccb_to_idx(p_ccb);
+
+        /* pretend that we received a rej message */
+        evt = avdt_msg_rej_2_evt[p_ccb->p_curr_cmd->event - 1];
+
+        if (evt & AVDT_CCB_MKR)
+        {
+            avdt_ccb_event(p_ccb, (UINT8) (evt & ~AVDT_CCB_MKR), (tAVDT_CCB_EVT *) &msg);
+        }
+        else
+        {
+            /* we get the scb out of the current cmd */
+            p_scb = avdt_scb_by_hdl(*((UINT8 *)(p_ccb->p_curr_cmd + 1)));
+            if (p_scb != NULL)
+            {
+                avdt_scb_event(p_scb, evt, (tAVDT_SCB_EVT *) &msg);
+            }
+        }
+
+        osi_free_and_reset((void **)&p_ccb->p_curr_cmd);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         avdt_ccb_free_cmd
+**
+** Description      This function is called when a response is received for a
+**                  currently pending command.  The command is freed.
+**
+**
+** Returns          void.
+**
+*******************************************************************************/
+void avdt_ccb_free_cmd(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
+{
+    UNUSED(p_data);
+    osi_free_and_reset((void **)&p_ccb->p_curr_cmd);
+}
+
+/*******************************************************************************
+**
+** Function         avdt_ccb_cong_state
+**
+** Description      This function is called to set the congestion state for
+**                  the CCB.
+**
+**
+** Returns          void.
+**
+*******************************************************************************/
+void avdt_ccb_cong_state(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
+{
+    p_ccb->cong = p_data->llcong;
+}
+
+/*******************************************************************************
+**
+** Function         avdt_ccb_ret_cmd
+**
+** Description      This function is called to retransmit the currently
+**                  pending command.  The retransmission count is incremented.
+**                  If the count reaches the maximum number of retransmissions,
+**                  the event is treated as a response timeout.
+**
+**
+** Returns          void.
+**
+*******************************************************************************/
+void avdt_ccb_ret_cmd(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
+{
+    UINT8   err_code = AVDT_ERR_TIMEOUT;
+
+    p_ccb->ret_count++;
+    if (p_ccb->ret_count == AVDT_RET_MAX)
+    {
+        /* command failed */
+        p_ccb->ret_count = 0;
+        avdt_ccb_cmd_fail(p_ccb, (tAVDT_CCB_EVT *) &err_code);
+
+        /* go to next queued command */
+        avdt_ccb_snd_cmd(p_ccb, p_data);
+    }
+    else
+    {
+        /* if command pending and we're not congested and not sending a fragment */
+        if ((!p_ccb->cong) && (p_ccb->p_curr_msg == NULL) && (p_ccb->p_curr_cmd != NULL))
+        {
+            /* make copy of message in p_curr_cmd and send it */
+            BT_HDR *p_msg = (BT_HDR *)osi_malloc(AVDT_CMD_BUF_SIZE);
+            memcpy(p_msg, p_ccb->p_curr_cmd,
+                   (sizeof(BT_HDR) + p_ccb->p_curr_cmd->offset + p_ccb->p_curr_cmd->len));
+            avdt_msg_send(p_ccb, p_msg);
+        }
+
+        /* restart ret timer */
+        alarm_cancel(p_ccb->idle_ccb_timer);
+        alarm_cancel(p_ccb->rsp_ccb_timer);
+        period_ms_t interval_ms = avdt_cb.rcb.ret_tout * 1000;
+        alarm_set_on_queue(p_ccb->ret_ccb_timer, interval_ms,
+                           avdt_ccb_ret_ccb_timer_timeout, p_ccb,
+                           btu_general_alarm_queue);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         avdt_ccb_snd_cmd
+**
+** Description      This function is called the send the next command,
+**                  if any, in the command queue.
+**
+**
+** Returns          void.
+**
+*******************************************************************************/
+void avdt_ccb_snd_cmd(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
+{
+    BT_HDR  *p_msg;
+    UNUSED(p_data);
+
+    /* do we have commands to send?  send next command;  make sure we're clear;
+    ** not congested, not sending fragment, not waiting for response
+    */
+    if ((!p_ccb->cong) && (p_ccb->p_curr_msg == NULL) && (p_ccb->p_curr_cmd == NULL))
+    {
+        if ((p_msg = (BT_HDR *) fixed_queue_try_dequeue(p_ccb->cmd_q)) != NULL)
+        {
+            /* make a copy of buffer in p_curr_cmd */
+            p_ccb->p_curr_cmd = (BT_HDR *)osi_malloc(AVDT_CMD_BUF_SIZE);
+            memcpy(p_ccb->p_curr_cmd, p_msg,
+                   (sizeof(BT_HDR) + p_msg->offset + p_msg->len));
+            avdt_msg_send(p_ccb, p_msg);
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         avdt_ccb_snd_msg
+**
+** Description
+**
+**
+** Returns          void.
+**
+*******************************************************************************/
+void avdt_ccb_snd_msg(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
+{
+    BT_HDR      *p_msg;
+    UNUSED(p_data);
+
+    /* if not congested */
+    if (!p_ccb->cong)
+    {
+        /* are we sending a fragmented message? continue sending fragment */
+        if (p_ccb->p_curr_msg != NULL)
+        {
+            avdt_msg_send(p_ccb, NULL);
+        }
+        /* do we have responses to send?  send them */
+        else if (!fixed_queue_is_empty(p_ccb->rsp_q))
+        {
+            while ((p_msg = (BT_HDR *)fixed_queue_try_dequeue(p_ccb->rsp_q)) != NULL)
+            {
+                if (avdt_msg_send(p_ccb, p_msg) == TRUE)
+                {
+                    /* break out if congested */
+                    break;
+                }
+            }
+        }
+
+        /* do we have commands to send?  send next command */
+        avdt_ccb_snd_cmd(p_ccb, NULL);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         avdt_ccb_set_reconn
+**
+** Description      This function is called to enable a reconnect attempt when
+**                  a channel transitions from closing to idle state.  It sets
+**                  the reconn variable to TRUE.
+**
+**
+** Returns          void.
+**
+*******************************************************************************/
+void avdt_ccb_set_reconn(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
+{
+    UNUSED(p_data);
+
+    p_ccb->reconn = TRUE;
+}
+
+/*******************************************************************************
+**
+** Function         avdt_ccb_clr_reconn
+**
+** Description      This function is called to clear the reconn variable.
+**
+**
+** Returns          void.
+**
+*******************************************************************************/
+void avdt_ccb_clr_reconn(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
+{
+    UNUSED(p_data);
+
+    p_ccb->reconn = FALSE;
+}
+
+/*******************************************************************************
+**
+** Function         avdt_ccb_chk_reconn
+**
+** Description      This function is called to check if a reconnect attempt
+**                  is enabled.  If enabled, it sends an AVDT_CCB_UL_OPEN_EVT
+**                  to the CCB.  If disabled, the CCB is deallocated.
+**
+**
+** Returns          void.
+**
+*******************************************************************************/
+void avdt_ccb_chk_reconn(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
+{
+    UINT8   err_code = AVDT_ERR_CONNECT;
+    UNUSED(p_data);
+
+    if (p_ccb->reconn)
+    {
+        p_ccb->reconn = FALSE;
+
+        /* clear out ccb */
+        avdt_ccb_clear_ccb(p_ccb);
+
+        /* clear out current command, if any */
+        avdt_ccb_cmd_fail(p_ccb, (tAVDT_CCB_EVT *) &err_code);
+
+        /* reopen the signaling channel */
+        avdt_ccb_event(p_ccb, AVDT_CCB_UL_OPEN_EVT, NULL);
+    }
+    else
+    {
+        avdt_ccb_ll_closed(p_ccb, NULL);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         avdt_ccb_chk_timer
+**
+** Description      This function stops the CCB timer if the idle timer is
+**                  running.
+**
+**
+** Returns          void.
+**
+*******************************************************************************/
+void avdt_ccb_chk_timer(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
+{
+    UNUSED(p_data);
+
+    alarm_cancel(p_ccb->idle_ccb_timer);
+}
+
+/*******************************************************************************
+**
+** Function         avdt_ccb_set_conn
+**
+** Description      Set CCB variables associated with AVDT_ConnectReq().
+**
+**
+** Returns          void.
+**
+*******************************************************************************/
+void avdt_ccb_set_conn(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
+{
+    /* save callback */
+    p_ccb->p_conn_cback = p_data->connect.p_cback;
+
+    /* set security level */
+    BTM_SetSecurityLevel(TRUE, "", BTM_SEC_SERVICE_AVDTP, p_data->connect.sec_mask,
+                         AVDT_PSM, BTM_SEC_PROTO_AVDT, AVDT_CHAN_SIG);
+}
+
+/*******************************************************************************
+**
+** Function         avdt_ccb_set_disconn
+**
+** Description      Set CCB variables associated with AVDT_DisconnectReq().
+**
+**
+** Returns          void.
+**
+*******************************************************************************/
+void avdt_ccb_set_disconn(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
+{
+    /*
+    AVDT_TRACE_EVENT("avdt_ccb_set_disconn:conn:x%x, api:x%x",
+        p_ccb->p_conn_cback, p_data->disconnect.p_cback);
+        */
+    /* save callback */
+    if (p_data->disconnect.p_cback)
+        p_ccb->p_conn_cback = p_data->disconnect.p_cback;
+}
+
+/*******************************************************************************
+**
+** Function         avdt_ccb_do_disconn
+**
+** Description      Do action associated with AVDT_DisconnectReq().
+**
+**
+** Returns          void.
+**
+*******************************************************************************/
+void avdt_ccb_do_disconn(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
+{
+    UNUSED(p_data);
+
+    /* clear any pending commands */
+    avdt_ccb_clear_cmds(p_ccb, NULL);
+
+    /* close channel */
+    avdt_ccb_chan_close(p_ccb, NULL);
+}
+
+/*******************************************************************************
+**
+** Function         avdt_ccb_ll_closed
+**
+** Description      Clear commands from and deallocate CCB.
+**
+**
+** Returns          void.
+**
+*******************************************************************************/
+void avdt_ccb_ll_closed(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
+{
+    tAVDT_CTRL_CBACK    *p_cback;
+    BD_ADDR             bd_addr;
+    tAVDT_CTRL          avdt_ctrl;
+    UNUSED(p_data);
+
+    /* clear any pending commands */
+    avdt_ccb_clear_cmds(p_ccb, NULL);
+
+    /* save callback pointer, bd addr */
+    p_cback = p_ccb->p_conn_cback;
+    if (!p_cback)
+        p_cback = avdt_cb.p_conn_cback;
+    memcpy(bd_addr, p_ccb->peer_addr, BD_ADDR_LEN);
+
+    /* dealloc ccb */
+    avdt_ccb_dealloc(p_ccb, NULL);
+
+    /* call callback */
+    if (p_cback)
+    {
+        avdt_ctrl.hdr.err_code = 0;
+        (*p_cback)(0, bd_addr, AVDT_DISCONNECT_IND_EVT, &avdt_ctrl);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         avdt_ccb_ll_opened
+**
+** Description      Call callback on open.
+**
+**
+** Returns          void.
+**
+*******************************************************************************/
+void avdt_ccb_ll_opened(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
+{
+    tAVDT_CTRL          avdt_ctrl;
+
+    p_ccb->ll_opened = TRUE;
+
+    if (!p_ccb->p_conn_cback)
+        p_ccb->p_conn_cback = avdt_cb.p_conn_cback;
+
+    /* call callback */
+    if (p_ccb->p_conn_cback)
+    {
+        avdt_ctrl.hdr.err_code = 0;
+        avdt_ctrl.hdr.err_param = p_data->msg.hdr.err_param;
+        (*p_ccb->p_conn_cback)(0, p_ccb->peer_addr, AVDT_CONNECT_IND_EVT, &avdt_ctrl);
+    }
+}
diff --git a/rtkbt/code/bt/stack/avdt/avdt_defs.h b/rtkbt/code/bt/stack/avdt/avdt_defs.h
new file mode 100755
index 0000000..b6dbbc4
--- /dev/null
+++ b/rtkbt/code/bt/stack/avdt/avdt_defs.h
@@ -0,0 +1,203 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2002-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This contains constants definitions and other information from the AVDTP
+ *  specification.  This file is intended for use internal to AVDT only.
+ *
+ ******************************************************************************/
+#ifndef AVDT_DEFS_H
+#define AVDT_DEFS_H
+
+/*****************************************************************************
+** constants
+*****************************************************************************/
+
+/* signalling packet type */
+#define AVDT_PKT_TYPE_SINGLE        0       /* single packet */
+#define AVDT_PKT_TYPE_START         1       /* start packet */
+#define AVDT_PKT_TYPE_CONT          2       /* continue packet */
+#define AVDT_PKT_TYPE_END           3       /* end packet */
+
+/* signalling message type */
+#define AVDT_MSG_TYPE_CMD           0       /* command */
+#define AVDT_MSG_TYPE_GRJ           1       /* general reject */
+#define AVDT_MSG_TYPE_RSP           2       /* response accept */
+#define AVDT_MSG_TYPE_REJ           3       /* response reject */
+
+/* signalling messages */
+#define AVDT_SIG_DISCOVER           1       /* discover */
+#define AVDT_SIG_GETCAP             2       /* get capabilities */
+#define AVDT_SIG_SETCONFIG          3       /* set configuration */
+#define AVDT_SIG_GETCONFIG          4       /* get configuration */
+#define AVDT_SIG_RECONFIG           5       /* reconfigure */
+#define AVDT_SIG_OPEN               6       /* open */
+#define AVDT_SIG_START              7       /* start */
+#define AVDT_SIG_CLOSE              8       /* close */
+#define AVDT_SIG_SUSPEND            9       /* suspend */
+#define AVDT_SIG_ABORT              10      /* abort */
+#define AVDT_SIG_SECURITY           11      /* security control */
+#define AVDT_SIG_GET_ALLCAP         12      /* get all capabilities */
+#define AVDT_SIG_DELAY_RPT          13      /* delay report */
+
+/* maximum signal value */
+#define AVDT_SIG_MAX                AVDT_SIG_DELAY_RPT
+
+/* used for general reject */
+#define AVDT_SIG_NONE               0
+
+/* some maximum and minimum sizes of signalling messages */
+#define AVDT_DISCOVER_REQ_MIN       1
+#define AVDT_DISCOVER_REQ_MAX       124
+
+/* service category information element field values */
+#define AVDT_CAT_TRANS              1       /* Media Transport */
+#define AVDT_CAT_REPORT             2       /* Reporting */
+#define AVDT_CAT_RECOV              3       /* Recovery */
+#define AVDT_CAT_PROTECT            4       /* Content Protection */
+#define AVDT_CAT_HDRCMP             5       /* Header Compression */
+#define AVDT_CAT_MUX                6       /* Multiplexing */
+#define AVDT_CAT_CODEC              7       /* Media Codec */
+#define AVDT_CAT_DELAY_RPT          8       /* Delay Reporting */
+#define AVDT_CAT_MAX_CUR            AVDT_CAT_DELAY_RPT
+
+/* min/max lengths of service category information elements */
+#define AVDT_LEN_TRANS_MIN          0
+#define AVDT_LEN_REPORT_MIN         0
+#define AVDT_LEN_RECOV_MIN          3
+#define AVDT_LEN_PROTECT_MIN        2
+#define AVDT_LEN_HDRCMP_MIN         1
+#define AVDT_LEN_MUX_MIN            3
+#define AVDT_LEN_CODEC_MIN          2
+#define AVDT_LEN_DELAY_RPT_MIN      0
+
+#define AVDT_LEN_TRANS_MAX          0
+#define AVDT_LEN_REPORT_MAX         0
+#define AVDT_LEN_RECOV_MAX          3
+#define AVDT_LEN_PROTECT_MAX        255
+#define AVDT_LEN_HDRCMP_MAX         1
+#define AVDT_LEN_MUX_MAX            7
+#define AVDT_LEN_CODEC_MAX          255
+#define AVDT_LEN_DELAY_RPT_MAX      0
+
+/* minimum possible size of configuration or capabilities data */
+#define AVDT_LEN_CFG_MIN            2
+
+/* minimum and maximum lengths for different message types */
+#define AVDT_LEN_SINGLE             1
+#define AVDT_LEN_SETCONFIG_MIN      2
+#define AVDT_LEN_RECONFIG_MIN       1
+#define AVDT_LEN_MULTI_MIN          1
+#define AVDT_LEN_SECURITY_MIN       1
+#define AVDT_LEN_DELAY_RPT          3
+
+/* header lengths for different packet types */
+#define AVDT_LEN_TYPE_SINGLE        2       /* single packet */
+#define AVDT_LEN_TYPE_START         3       /* start packet */
+#define AVDT_LEN_TYPE_CONT          1       /* continue packet */
+#define AVDT_LEN_TYPE_END           1       /* end packet */
+
+/* length of general reject message */
+#define AVDT_LEN_GEN_REJ            2
+
+/* recovery service capabilities information elements */
+#define AVDT_RECOV_MRWS_MIN         0x01    /* min value for maximum recovery window */
+#define AVDT_RECOV_MRWS_MAX         0x18    /* max value for maximum recovery window */
+#define AVDT_RECOV_MNMP_MIN         0x01    /* min value for maximum number of media packets */
+#define AVDT_RECOV_MNMP_MAX         0x18    /* max value for maximum number of media packets */
+
+/* SEID value range */
+#define AVDT_SEID_MIN               0x01
+#define AVDT_SEID_MAX               0x3E
+
+/* first byte of media packet header */
+#define AVDT_MEDIA_OCTET1           0x80
+
+/* for adaptation layer header */
+#define AVDT_ALH_LCODE_MASK     0x03    /* coding of length field */
+#define AVDT_ALH_LCODE_NONE     0x00    /* No length field present. Take length from l2cap */
+#define AVDT_ALH_LCODE_16BIT    0x01    /* 16bit length field */
+#define AVDT_ALH_LCODE_9BITM0   0x02    /* 9 bit length field, MSB = 0, 8 LSBs in 1 octet following */
+#define AVDT_ALH_LCODE_9BITM1   0x03    /* 9 bit length field, MSB = 1, 8 LSBs in 1 octet following */
+
+#define AVDT_ALH_FRAG_MASK      0x04    /* set this for continuation packet */
+
+/*****************************************************************************
+** message parsing and building macros
+*****************************************************************************/
+
+#define AVDT_MSG_PRS_HDR(p, lbl, pkt, msg) \
+    lbl = *(p) >> 4; \
+    pkt = (*(p) >> 2) & 0x03; \
+    msg = *(p)++ & 0x03;
+
+#define AVDT_MSG_PRS_DISC(p, seid, in_use, type, tsep) \
+    seid = *(p) >> 2; \
+    in_use = (*(p)++ >> 1) & 0x01; \
+    type = *(p) >> 4; \
+    tsep = (*(p)++ >> 3) & 0x01;
+
+#define AVDT_MSG_PRS_SIG(p, sig) \
+    sig = *(p)++ & 0x3F;
+
+#define AVDT_MSG_PRS_SEID(p, seid) \
+    seid = *(p)++ >> 2;
+
+#define AVDT_MSG_PRS_PKT_TYPE(p, pkt) \
+    pkt = (*(p) >> 2) & 0x03;
+
+#define AVDT_MSG_PRS_OCTET1(p, o_v, o_p, o_x, o_cc) \
+    o_v = *(p) >> 6; \
+    o_p = (*(p) >> 5) & 0x01; \
+    o_x = (*(p) >> 4) & 0x01; \
+    o_cc = *(p)++ & 0x0F;
+
+#define AVDT_MSG_PRS_RPT_OCTET1(p, o_v, o_p, o_cc) \
+    o_v = *(p) >> 6; \
+    o_p = (*(p) >> 5) & 0x01; \
+    o_cc = *(p)++ & 0x1F;
+
+#define AVDT_MSG_PRS_M_PT(p, m_pt, marker) \
+    marker = *(p) >> 7; \
+    m_pt = *(p)++ & 0x7F;
+
+#define AVDT_MSG_BLD_HDR(p, lbl, pkt, msg) \
+    *(p)++ = (UINT8) ((lbl) << 4) | ((pkt) << 2) | (msg);
+
+#define AVDT_MSG_BLD_DISC(p, seid, in_use, type, tsep) \
+    *(p)++ = (UINT8) (((seid) << 2) | ((in_use) << 1)); \
+    *(p)++ = (UINT8) (((type) << 4) | ((tsep) << 3));
+
+#define AVDT_MSG_BLD_SIG(p, sig) \
+    *(p)++ = (UINT8) (sig);
+
+#define AVDT_MSG_BLD_SEID(p, seid) \
+    *(p)++ = (UINT8) ((seid) << 2);
+
+#define AVDT_MSG_BLD_ERR(p, err) \
+    *(p)++ = (UINT8) (err);
+
+#define AVDT_MSG_BLD_PARAM(p, param) \
+    *(p)++ = (UINT8) (param);
+
+#define AVDT_MSG_BLD_NOSP(p, nosp) \
+    *(p)++ = (UINT8) (nosp);
+
+#endif /* AVDT_DEFS_H */
+
diff --git a/rtkbt/code/bt/stack/avdt/avdt_int.h b/rtkbt/code/bt/stack/avdt/avdt_int.h
new file mode 100755
index 0000000..1ab5f18
--- /dev/null
+++ b/rtkbt/code/bt/stack/avdt/avdt_int.h
@@ -0,0 +1,752 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2002-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains interfaces which are internal to AVDTP.
+ *
+ ******************************************************************************/
+#ifndef AVDT_INT_H
+#define AVDT_INT_H
+
+#include "osi/include/alarm.h"
+#include "osi/include/fixed_queue.h"
+#include "bt_common.h"
+#include "avdt_api.h"
+#include "avdtc_api.h"
+#include "avdt_defs.h"
+#include "l2c_api.h"
+#include "btm_api.h"
+
+#ifndef AVDT_DEBUG
+#define AVDT_DEBUG  FALSE
+#endif
+
+/*****************************************************************************
+** constants
+*****************************************************************************/
+
+/* channel types */
+enum {
+    AVDT_CHAN_SIG,                  /* signaling channel */
+    AVDT_CHAN_MEDIA,                /* media channel */
+#if AVDT_REPORTING == TRUE
+    AVDT_CHAN_REPORT,               /* reporting channel */
+#endif
+    AVDT_CHAN_NUM_TYPES
+};
+
+/* protocol service capabilities of this AVDTP implementation */
+/* for now multiplexing will be used only for fragmentation */
+#if ((AVDT_MULTIPLEXING == TRUE) && (AVDT_REPORTING == TRUE))
+#define AVDT_PSC                (AVDT_PSC_TRANS | AVDT_PSC_MUX | AVDT_PSC_REPORT | AVDT_PSC_DELAY_RPT)
+#define AVDT_LEG_PSC            (AVDT_PSC_TRANS | AVDT_PSC_MUX | AVDT_PSC_REPORT)
+#else /* AVDT_MULTIPLEXING && AVDT_REPORTING  */
+
+#if (AVDT_MULTIPLEXING == TRUE)
+#define AVDT_PSC                (AVDT_PSC_TRANS | AVDT_PSC_MUX | AVDT_PSC_DELAY_RPT)
+#define AVDT_LEG_PSC            (AVDT_PSC_TRANS | AVDT_PSC_MUX)
+#else /* AVDT_MULTIPLEXING */
+
+#if (AVDT_REPORTING == TRUE)
+#define AVDT_PSC                (AVDT_PSC_TRANS | AVDT_PSC_REPORT | AVDT_PSC_DELAY_RPT)
+#define AVDT_LEG_PSC            (AVDT_PSC_TRANS | AVDT_PSC_REPORT)
+#else /* AVDT_REPORTING  */
+#define AVDT_PSC                (AVDT_PSC_TRANS | AVDT_PSC_DELAY_RPT)
+#define AVDT_LEG_PSC            (AVDT_PSC_TRANS)
+#endif /* AVDT_REPORTING  */
+
+#endif /* AVDT_MULTIPLEXING */
+
+#endif /* AVDT_MULTIPLEXING && AVDT_REPORTING  */
+
+/* initiator/acceptor signaling roles */
+#define AVDT_CLOSE_ACP          0
+#define AVDT_CLOSE_INT          1
+#define AVDT_OPEN_ACP           2
+#define AVDT_OPEN_INT           3
+
+/* states for avdt_scb_verify */
+#define AVDT_VERIFY_OPEN        0
+#define AVDT_VERIFY_STREAMING   1
+#define AVDT_VERIFY_SUSPEND     2
+#define AVDT_VERIFY_START       3
+
+/* to distinguish CCB events from SCB events */
+#define AVDT_CCB_MKR            0x80
+
+/* offset where AVDTP signaling message header starts in message  */
+#define AVDT_HDR_OFFSET         (L2CAP_MIN_OFFSET + AVDT_NUM_SEPS)
+
+/* offset where AVDTP signaling message content starts;
+** use the size of a start header since it's the largest possible
+** layout of signaling message in a buffer is:
+**
+** |  BT_HDR  | SCB handles | L2CAP + HCI header | AVDTP header | data ... |
+**
+** Note that we "hide" the scb handles at the top of the message buffer.
+*/
+#define AVDT_MSG_OFFSET         (L2CAP_MIN_OFFSET + AVDT_NUM_SEPS + AVDT_LEN_TYPE_START)
+
+/* scb transport channel connect timeout value (in milliseconds) */
+#define AVDT_SCB_TC_CONN_TIMEOUT_MS   (10 * 1000)
+
+/* scb transport channel disconnect timeout value (in milliseconds) */
+#define AVDT_SCB_TC_DISC_TIMEOUT_MS   (10 * 1000)
+
+/* maximum number of command retransmissions */
+#ifndef AVDT_RET_MAX
+#define AVDT_RET_MAX            1
+#endif
+
+
+/* ccb state machine states */
+enum {
+    AVDT_CCB_IDLE_ST,
+    AVDT_CCB_OPENING_ST,
+    AVDT_CCB_OPEN_ST,
+    AVDT_CCB_CLOSING_ST
+};
+
+/* state machine action enumeration list */
+enum {
+    AVDT_CCB_CHAN_OPEN,
+    AVDT_CCB_CHAN_CLOSE,
+    AVDT_CCB_CHK_CLOSE,
+    AVDT_CCB_HDL_DISCOVER_CMD,
+    AVDT_CCB_HDL_DISCOVER_RSP,
+    AVDT_CCB_HDL_GETCAP_CMD,
+    AVDT_CCB_HDL_GETCAP_RSP,
+    AVDT_CCB_HDL_START_CMD,
+    AVDT_CCB_HDL_START_RSP,
+    AVDT_CCB_HDL_SUSPEND_CMD,
+    AVDT_CCB_HDL_SUSPEND_RSP,
+    AVDT_CCB_SND_DISCOVER_CMD,
+    AVDT_CCB_SND_DISCOVER_RSP,
+    AVDT_CCB_SND_GETCAP_CMD,
+    AVDT_CCB_SND_GETCAP_RSP,
+    AVDT_CCB_SND_START_CMD,
+    AVDT_CCB_SND_START_RSP,
+    AVDT_CCB_SND_SUSPEND_CMD,
+    AVDT_CCB_SND_SUSPEND_RSP,
+    AVDT_CCB_CLEAR_CMDS,
+    AVDT_CCB_CMD_FAIL,
+    AVDT_CCB_FREE_CMD,
+    AVDT_CCB_CONG_STATE,
+    AVDT_CCB_RET_CMD,
+    AVDT_CCB_SND_CMD,
+    AVDT_CCB_SND_MSG,
+    AVDT_CCB_SET_RECONN,
+    AVDT_CCB_CLR_RECONN,
+    AVDT_CCB_CHK_RECONN,
+    AVDT_CCB_CHK_TIMER,
+    AVDT_CCB_SET_CONN,
+    AVDT_CCB_SET_DISCONN,
+    AVDT_CCB_DO_DISCONN,
+    AVDT_CCB_LL_CLOSED,
+    AVDT_CCB_LL_OPENED,
+    AVDT_CCB_DEALLOC,
+    AVDT_CCB_NUM_ACTIONS
+};
+
+#define AVDT_CCB_IGNORE     AVDT_CCB_NUM_ACTIONS
+
+/* ccb state machine events */
+enum {
+    AVDT_CCB_API_DISCOVER_REQ_EVT,
+    AVDT_CCB_API_GETCAP_REQ_EVT,
+    AVDT_CCB_API_START_REQ_EVT,
+    AVDT_CCB_API_SUSPEND_REQ_EVT,
+    AVDT_CCB_API_DISCOVER_RSP_EVT,
+    AVDT_CCB_API_GETCAP_RSP_EVT,
+    AVDT_CCB_API_START_RSP_EVT,
+    AVDT_CCB_API_SUSPEND_RSP_EVT,
+    AVDT_CCB_API_CONNECT_REQ_EVT,
+    AVDT_CCB_API_DISCONNECT_REQ_EVT,
+    AVDT_CCB_MSG_DISCOVER_CMD_EVT,
+    AVDT_CCB_MSG_GETCAP_CMD_EVT,
+    AVDT_CCB_MSG_START_CMD_EVT,
+    AVDT_CCB_MSG_SUSPEND_CMD_EVT,
+    AVDT_CCB_MSG_DISCOVER_RSP_EVT,
+    AVDT_CCB_MSG_GETCAP_RSP_EVT,
+    AVDT_CCB_MSG_START_RSP_EVT,
+    AVDT_CCB_MSG_SUSPEND_RSP_EVT,
+    AVDT_CCB_RCVRSP_EVT,
+    AVDT_CCB_SENDMSG_EVT,
+    AVDT_CCB_RET_TOUT_EVT,
+    AVDT_CCB_RSP_TOUT_EVT,
+    AVDT_CCB_IDLE_TOUT_EVT,
+    AVDT_CCB_UL_OPEN_EVT,
+    AVDT_CCB_UL_CLOSE_EVT,
+    AVDT_CCB_LL_OPEN_EVT,
+    AVDT_CCB_LL_CLOSE_EVT,
+    AVDT_CCB_LL_CONG_EVT
+};
+
+
+/* scb state machine states; these state values are private to this module so
+** the scb state cannot be read or set by actions functions
+*/
+enum {
+    AVDT_SCB_IDLE_ST,
+    AVDT_SCB_CONF_ST,
+    AVDT_SCB_OPENING_ST,
+    AVDT_SCB_OPEN_ST,
+    AVDT_SCB_STREAM_ST,
+    AVDT_SCB_CLOSING_ST
+};
+
+/* state machine action enumeration list */
+enum {
+    AVDT_SCB_HDL_ABORT_CMD,
+    AVDT_SCB_HDL_ABORT_RSP,
+    AVDT_SCB_HDL_CLOSE_CMD,
+    AVDT_SCB_HDL_CLOSE_RSP,
+    AVDT_SCB_HDL_GETCONFIG_CMD,
+    AVDT_SCB_HDL_GETCONFIG_RSP,
+    AVDT_SCB_HDL_OPEN_CMD,
+    AVDT_SCB_HDL_OPEN_REJ,
+    AVDT_SCB_HDL_OPEN_RSP,
+    AVDT_SCB_HDL_PKT,
+    AVDT_SCB_DROP_PKT,
+    AVDT_SCB_HDL_RECONFIG_CMD,
+    AVDT_SCB_HDL_RECONFIG_RSP,
+    AVDT_SCB_HDL_SECURITY_CMD,
+    AVDT_SCB_HDL_SECURITY_RSP,
+    AVDT_SCB_HDL_SETCONFIG_CMD,
+    AVDT_SCB_HDL_SETCONFIG_REJ,
+    AVDT_SCB_HDL_SETCONFIG_RSP,
+    AVDT_SCB_HDL_START_CMD,
+    AVDT_SCB_HDL_START_RSP,
+    AVDT_SCB_HDL_SUSPEND_CMD,
+    AVDT_SCB_HDL_SUSPEND_RSP,
+    AVDT_SCB_HDL_TC_CLOSE,
+#if AVDT_REPORTING == TRUE
+    AVDT_SCB_HDL_TC_CLOSE_STO,
+#endif
+    AVDT_SCB_HDL_TC_OPEN,
+#if AVDT_REPORTING == TRUE
+    AVDT_SCB_HDL_TC_OPEN_STO,
+#endif
+    AVDT_SCB_SND_DELAY_RPT_REQ,
+    AVDT_SCB_HDL_DELAY_RPT_CMD,
+    AVDT_SCB_HDL_DELAY_RPT_RSP,
+    AVDT_SCB_HDL_WRITE_REQ,
+    AVDT_SCB_SND_ABORT_REQ,
+    AVDT_SCB_SND_ABORT_RSP,
+    AVDT_SCB_SND_CLOSE_REQ,
+    AVDT_SCB_SND_STREAM_CLOSE,
+    AVDT_SCB_SND_CLOSE_RSP,
+    AVDT_SCB_SND_GETCONFIG_REQ,
+    AVDT_SCB_SND_GETCONFIG_RSP,
+    AVDT_SCB_SND_OPEN_REQ,
+    AVDT_SCB_SND_OPEN_RSP,
+    AVDT_SCB_SND_RECONFIG_REQ,
+    AVDT_SCB_SND_RECONFIG_RSP,
+    AVDT_SCB_SND_SECURITY_REQ,
+    AVDT_SCB_SND_SECURITY_RSP,
+    AVDT_SCB_SND_SETCONFIG_REQ,
+    AVDT_SCB_SND_SETCONFIG_REJ,
+    AVDT_SCB_SND_SETCONFIG_RSP,
+    AVDT_SCB_SND_TC_CLOSE,
+    AVDT_SCB_CB_ERR,
+    AVDT_SCB_CONG_STATE,
+    AVDT_SCB_REJ_STATE,
+    AVDT_SCB_REJ_IN_USE,
+    AVDT_SCB_REJ_NOT_IN_USE,
+    AVDT_SCB_SET_REMOVE,
+    AVDT_SCB_FREE_PKT,
+    AVDT_SCB_CLR_PKT,
+    AVDT_SCB_CHK_SND_PKT,
+    AVDT_SCB_TC_TIMER,
+    AVDT_SCB_CLR_VARS,
+    AVDT_SCB_DEALLOC,
+    AVDT_SCB_NUM_ACTIONS
+};
+
+#define AVDT_SCB_IGNORE     AVDT_SCB_NUM_ACTIONS
+
+/* scb state machine events */
+enum {
+    AVDT_SCB_API_REMOVE_EVT,
+    AVDT_SCB_API_WRITE_REQ_EVT,
+    AVDT_SCB_API_GETCONFIG_REQ_EVT,
+    AVDT_SCB_API_DELAY_RPT_REQ_EVT,
+    AVDT_SCB_API_SETCONFIG_REQ_EVT,
+    AVDT_SCB_API_OPEN_REQ_EVT,
+    AVDT_SCB_API_CLOSE_REQ_EVT,
+    AVDT_SCB_API_RECONFIG_REQ_EVT,
+    AVDT_SCB_API_SECURITY_REQ_EVT,
+    AVDT_SCB_API_ABORT_REQ_EVT,
+    AVDT_SCB_API_GETCONFIG_RSP_EVT,
+    AVDT_SCB_API_SETCONFIG_RSP_EVT,
+    AVDT_SCB_API_SETCONFIG_REJ_EVT,
+    AVDT_SCB_API_OPEN_RSP_EVT,
+    AVDT_SCB_API_CLOSE_RSP_EVT,
+    AVDT_SCB_API_RECONFIG_RSP_EVT,
+    AVDT_SCB_API_SECURITY_RSP_EVT,
+    AVDT_SCB_API_ABORT_RSP_EVT,
+    AVDT_SCB_MSG_SETCONFIG_CMD_EVT,
+    AVDT_SCB_MSG_GETCONFIG_CMD_EVT,
+    AVDT_SCB_MSG_OPEN_CMD_EVT,
+    AVDT_SCB_MSG_START_CMD_EVT,
+    AVDT_SCB_MSG_SUSPEND_CMD_EVT,
+    AVDT_SCB_MSG_CLOSE_CMD_EVT,
+    AVDT_SCB_MSG_ABORT_CMD_EVT,
+    AVDT_SCB_MSG_RECONFIG_CMD_EVT,
+    AVDT_SCB_MSG_SECURITY_CMD_EVT,
+    AVDT_SCB_MSG_DELAY_RPT_CMD_EVT,
+    AVDT_SCB_MSG_DELAY_RPT_RSP_EVT,
+    AVDT_SCB_MSG_SETCONFIG_RSP_EVT,
+    AVDT_SCB_MSG_GETCONFIG_RSP_EVT,
+    AVDT_SCB_MSG_OPEN_RSP_EVT,
+    AVDT_SCB_MSG_START_RSP_EVT,
+    AVDT_SCB_MSG_SUSPEND_RSP_EVT,
+    AVDT_SCB_MSG_CLOSE_RSP_EVT,
+    AVDT_SCB_MSG_ABORT_RSP_EVT,
+    AVDT_SCB_MSG_RECONFIG_RSP_EVT,
+    AVDT_SCB_MSG_SECURITY_RSP_EVT,
+    AVDT_SCB_MSG_SETCONFIG_REJ_EVT,
+    AVDT_SCB_MSG_OPEN_REJ_EVT,
+    AVDT_SCB_MSG_START_REJ_EVT,
+    AVDT_SCB_MSG_SUSPEND_REJ_EVT,
+    AVDT_SCB_TC_TOUT_EVT,
+    AVDT_SCB_TC_OPEN_EVT,
+    AVDT_SCB_TC_CLOSE_EVT,
+    AVDT_SCB_TC_CONG_EVT,
+    AVDT_SCB_TC_DATA_EVT,
+    AVDT_SCB_CC_CLOSE_EVT
+};
+
+/* adaption layer number of stream routing table entries */
+#if AVDT_REPORTING == TRUE
+/* 2 channels(1 media, 1 report) for each SEP and one for signalling */
+#define AVDT_NUM_RT_TBL     ((AVDT_NUM_SEPS<<1) + 1)
+#else
+#define AVDT_NUM_RT_TBL     (AVDT_NUM_SEPS + 1)
+#endif
+
+/* adaption layer number of transport channel table entries - moved to target.h
+#define AVDT_NUM_TC_TBL     (AVDT_NUM_SEPS + AVDT_NUM_LINKS) */
+
+/* "states" used in transport channel table */
+#define AVDT_AD_ST_UNUSED   0       /* Unused - unallocated */
+#define AVDT_AD_ST_IDLE     1       /* No connection */
+#define AVDT_AD_ST_ACP      2       /* Waiting to accept a connection */
+#define AVDT_AD_ST_INT      3       /* Initiating a connection */
+#define AVDT_AD_ST_CONN     4       /* Waiting for connection confirm */
+#define AVDT_AD_ST_CFG      5       /* Waiting for configuration complete */
+#define AVDT_AD_ST_OPEN     6       /* Channel opened */
+#define AVDT_AD_ST_SEC_INT  7       /* Security process as INT */
+#define AVDT_AD_ST_SEC_ACP  8       /* Security process as ACP */
+
+/* Configuration flags. tAVDT_TC_TBL.cfg_flags */
+#define AVDT_L2C_CFG_IND_DONE   (1<<0)
+#define AVDT_L2C_CFG_CFM_DONE   (1<<1)
+#define AVDT_L2C_CFG_CONN_INT   (1<<2)
+#define AVDT_L2C_CFG_CONN_ACP   (1<<3)
+
+
+/* result code for avdt_ad_write_req() (L2CA_DataWrite()) */
+#define AVDT_AD_FAILED       L2CAP_DW_FAILED        /* FALSE */
+#define AVDT_AD_SUCCESS      L2CAP_DW_SUCCESS       /* TRUE */
+#define AVDT_AD_CONGESTED    L2CAP_DW_CONGESTED     /* 2 */
+
+/*****************************************************************************
+** data types
+*****************************************************************************/
+
+/* msg union of all message parameter types */
+typedef union {
+    tAVDT_EVT_HDR           hdr;
+    tAVDT_EVT_HDR           single;
+    tAVDT_SETCONFIG         config_cmd;
+    tAVDT_CONFIG            reconfig_cmd;
+    tAVDT_MULTI             multi;
+    tAVDT_SECURITY          security_cmd;
+    tAVDT_DISCOVER          discover_rsp;
+    tAVDT_CONFIG            svccap;
+    tAVDT_SECURITY          security_rsp;
+    tAVDT_DELAY_RPT         delay_rpt_cmd;
+} tAVDT_MSG;
+
+/* data type for AVDT_CCB_API_DISCOVER_REQ_EVT */
+typedef struct {
+    tAVDT_CTRL_CBACK    *p_cback;
+    tAVDT_SEP_INFO      *p_sep_info;
+    UINT8               num_seps;
+} tAVDT_CCB_API_DISCOVER;
+
+/* data type for AVDT_CCB_API_GETCAP_REQ_EVT */
+typedef struct {
+    tAVDT_EVT_HDR       single;
+    tAVDT_CTRL_CBACK    *p_cback;
+    tAVDT_CFG           *p_cfg;
+} tAVDT_CCB_API_GETCAP;
+
+/* data type for AVDT_CCB_API_CONNECT_REQ_EVT */
+typedef struct {
+    tAVDT_CTRL_CBACK    *p_cback;
+    UINT8               sec_mask;
+} tAVDT_CCB_API_CONNECT;
+
+/* data type for AVDT_CCB_API_DISCONNECT_REQ_EVT */
+typedef struct {
+    tAVDT_CTRL_CBACK    *p_cback;
+} tAVDT_CCB_API_DISCONNECT;
+
+/* union associated with ccb state machine events */
+typedef union {
+    tAVDT_CCB_API_DISCOVER      discover;
+    tAVDT_CCB_API_GETCAP        getcap;
+    tAVDT_CCB_API_CONNECT       connect;
+    tAVDT_CCB_API_DISCONNECT    disconnect;
+    tAVDT_MSG                   msg;
+    BOOLEAN                     llcong;
+    UINT8                       err_code;
+} tAVDT_CCB_EVT;
+
+/* channel control block type */
+typedef struct {
+    BD_ADDR             peer_addr;      /* BD address of peer */
+    /*
+     * NOTE: idle_ccb_timer, ret_ccb_timer and rsp_ccb_timer are mutually
+     * exclusive - no more than one timer should be running at the same time.
+     */
+    alarm_t             *idle_ccb_timer; /* Idle CCB timer entry */
+    alarm_t             *ret_ccb_timer; /* Ret CCB timer entry */
+    alarm_t             *rsp_ccb_timer; /* Rsp CCB timer entry */
+    fixed_queue_t       *cmd_q;         /* Queue for outgoing command messages */
+    fixed_queue_t       *rsp_q;         /* Queue for outgoing response and reject messages */
+    tAVDT_CTRL_CBACK    *proc_cback;    /* Procedure callback function */
+    tAVDT_CTRL_CBACK    *p_conn_cback;  /* Connection/disconnection callback function */
+    void                *p_proc_data;   /* Pointer to data storage for procedure */
+    BT_HDR              *p_curr_cmd;    /* Current command being sent awaiting response */
+    BT_HDR              *p_curr_msg;    /* Current message being sent */
+    BT_HDR              *p_rx_msg;      /* Current message being received */
+    BOOLEAN             allocated;      /* Whether ccb is allocated */
+    UINT8               state;          /* The CCB state machine state */
+    BOOLEAN             ll_opened;      /* TRUE if LL is opened */
+    BOOLEAN             proc_busy;      /* TRUE when a discover or get capabilities procedure in progress */
+    UINT8               proc_param;     /* Procedure parameter; either SEID for get capabilities or number of SEPS for discover */
+    BOOLEAN             cong;           /* Whether signaling channel is congested */
+    UINT8               label;          /* Message header "label" (sequence number) */
+    BOOLEAN             reconn;         /* If TRUE, reinitiate connection after transitioning from CLOSING to IDLE state */
+    UINT8               ret_count;      /* Command retransmission count */
+} tAVDT_CCB;
+
+/* type for action functions */
+typedef void (*tAVDT_CCB_ACTION)(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data);
+
+/* type for AVDT_SCB_API_WRITE_REQ_EVT */
+typedef struct {
+    BT_HDR      *p_buf;
+    UINT32      time_stamp;
+#if AVDT_MULTIPLEXING == TRUE
+    UINT8       *p_data;
+    UINT32      data_len;
+#endif
+    UINT8       m_pt;
+    tAVDT_DATA_OPT_MASK     opt;
+} tAVDT_SCB_APIWRITE;
+
+/* type for AVDT_SCB_TC_CLOSE_EVT */
+typedef struct {
+    UINT8           old_tc_state;       /* channel state before closed */
+    UINT8           tcid;               /* TCID  */
+    UINT8           type;               /* channel type */
+} tAVDT_SCB_TC_CLOSE;
+
+/* type for scb event data */
+typedef union {
+    tAVDT_MSG           msg;
+    tAVDT_SCB_APIWRITE  apiwrite;
+    tAVDT_DELAY_RPT     apidelay;
+    tAVDT_OPEN          open;
+    tAVDT_SCB_TC_CLOSE  close;
+    BOOLEAN             llcong;
+    BT_HDR              *p_pkt;
+} tAVDT_SCB_EVT;
+
+/* stream control block type */
+typedef struct {
+    tAVDT_CS        cs;             /* stream creation struct */
+    tAVDT_CFG       curr_cfg;       /* current configuration */
+    tAVDT_CFG       req_cfg;        /* requested configuration */
+    alarm_t         *transport_channel_timer; /* transport channel connect timer */
+    BT_HDR          *p_pkt;         /* packet waiting to be sent */
+    tAVDT_CCB       *p_ccb;         /* ccb associated with this scb */
+    UINT16          media_seq;      /* media packet sequence number */
+    BOOLEAN         allocated;      /* whether scb is allocated or unused */
+    BOOLEAN         in_use;         /* whether stream being used by peer */
+    UINT8           role;           /* initiator/acceptor role in current procedure */
+    BOOLEAN         remove;         /* whether CB is marked for removal */
+    UINT8           state;          /* state machine state */
+    UINT8           peer_seid;      /* SEID of peer stream */
+    UINT8           curr_evt;       /* current event; set only by state machine */
+    BOOLEAN         cong;           /* Whether media transport channel is congested */
+    UINT8           close_code;     /* Error code received in close response */
+#if AVDT_MULTIPLEXING == TRUE
+    fixed_queue_t   *frag_q;        /* Queue for outgoing media fragments */
+    UINT32          frag_off;       /* length of already received media fragments */
+    UINT32          frag_org_len;   /* original length before fragmentation of receiving media packet */
+    UINT8           *p_next_frag;   /* next fragment to send */
+    UINT8           *p_media_buf;   /* buffer for media packet assigned by AVDT_SetMediaBuf */
+    UINT32          media_buf_len;  /* length of buffer for media packet assigned by AVDT_SetMediaBuf */
+#endif
+} tAVDT_SCB;
+
+/* type for action functions */
+typedef void (*tAVDT_SCB_ACTION)(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data);
+
+/* adaption layer type for transport channel table */
+typedef struct {
+    UINT16  peer_mtu;       /* L2CAP mtu of the peer device */
+    UINT16  my_mtu;         /* Our MTU for this channel */
+    UINT16  my_flush_to;    /* Our flush timeout for this channel */
+    UINT16  lcid;
+    UINT8   tcid;           /* transport channel id */
+    UINT8   ccb_idx;        /* channel control block associated with this tc */
+    UINT8   state;          /* transport channel state */
+    UINT8   cfg_flags;      /* L2CAP configuration flags */
+    UINT8   id;
+} tAVDT_TC_TBL;
+
+/* adaption layer type for stream routing table */
+typedef struct {
+    UINT16  lcid;           /* L2CAP LCID of the associated transport channel */
+    UINT8   scb_hdl;        /* stream control block associated with this tc */
+} tAVDT_RT_TBL;
+
+
+/* adaption layer control block */
+typedef struct {
+    tAVDT_RT_TBL    rt_tbl[AVDT_NUM_LINKS][AVDT_NUM_RT_TBL];
+    tAVDT_TC_TBL    tc_tbl[AVDT_NUM_TC_TBL];
+    UINT8           lcid_tbl[MAX_L2CAP_CHANNELS];   /* map LCID to tc_tbl index */
+} tAVDT_AD;
+
+/* Control block for AVDT */
+typedef struct {
+    tAVDT_REG           rcb;                    /* registration control block */
+    tAVDT_CCB           ccb[AVDT_NUM_LINKS];    /* channel control blocks */
+    tAVDT_SCB           scb[AVDT_NUM_SEPS];     /* stream control blocks */
+    tAVDT_AD            ad;                     /* adaption layer control block */
+    tAVDTC_CTRL_CBACK   *p_conf_cback;          /* conformance callback function */
+    tAVDT_CCB_ACTION    *p_ccb_act;             /* pointer to CCB action functions */
+    tAVDT_SCB_ACTION    *p_scb_act;             /* pointer to SCB action functions */
+    tAVDT_CTRL_CBACK    *p_conn_cback;          /* connection callback function */
+    UINT8               trace_level;            /* trace level */
+} tAVDT_CB;
+
+
+/*****************************************************************************
+** function declarations
+*****************************************************************************/
+
+/* CCB function declarations */
+extern void avdt_ccb_init(void);
+extern void avdt_ccb_event(tAVDT_CCB *p_ccb, UINT8 event, tAVDT_CCB_EVT *p_data);
+extern tAVDT_CCB *avdt_ccb_by_bd(BD_ADDR bd_addr);
+extern tAVDT_CCB *avdt_ccb_alloc(BD_ADDR bd_addr);
+extern void avdt_ccb_dealloc(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data);
+extern UINT8 avdt_ccb_to_idx(tAVDT_CCB *p_ccb);
+extern tAVDT_CCB *avdt_ccb_by_idx(UINT8 idx);
+
+/* CCB action functions */
+extern void avdt_ccb_chan_open(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data);
+extern void avdt_ccb_chan_close(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data);
+extern void avdt_ccb_chk_close(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data);
+extern void avdt_ccb_hdl_discover_cmd(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data);
+extern void avdt_ccb_hdl_discover_rsp(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data);
+extern void avdt_ccb_hdl_getcap_cmd(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data);
+extern void avdt_ccb_hdl_getcap_rsp(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data);
+extern void avdt_ccb_hdl_start_cmd(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data);
+extern void avdt_ccb_hdl_start_rsp(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data);
+extern void avdt_ccb_hdl_suspend_cmd(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data);
+extern void avdt_ccb_hdl_suspend_rsp(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data);
+extern void avdt_ccb_snd_discover_cmd(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data);
+extern void avdt_ccb_snd_discover_rsp(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data);
+extern void avdt_ccb_snd_getcap_cmd(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data);
+extern void avdt_ccb_snd_getcap_rsp(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data);
+extern void avdt_ccb_snd_start_cmd(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data);
+extern void avdt_ccb_snd_start_rsp(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data);
+extern void avdt_ccb_snd_suspend_cmd(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data);
+extern void avdt_ccb_snd_suspend_rsp(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data);
+extern void avdt_ccb_clear_cmds(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data);
+extern void avdt_ccb_cmd_fail(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data);
+extern void avdt_ccb_free_cmd(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data);
+extern void avdt_ccb_cong_state(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data);
+extern void avdt_ccb_ret_cmd(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data);
+extern void avdt_ccb_snd_cmd(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data);
+extern void avdt_ccb_snd_msg(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data);
+extern void avdt_ccb_set_reconn(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data);
+extern void avdt_ccb_clr_reconn(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data);
+extern void avdt_ccb_chk_reconn(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data);
+extern void avdt_ccb_chk_timer(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data);
+extern void avdt_ccb_set_conn(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data);
+extern void avdt_ccb_set_disconn(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data);
+extern void avdt_ccb_do_disconn(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data);
+extern void avdt_ccb_ll_closed(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data);
+extern void avdt_ccb_ll_opened(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data);
+
+/* SCB function prototypes */
+extern void avdt_scb_event(tAVDT_SCB *p_scb, UINT8 event, tAVDT_SCB_EVT *p_data);
+extern void avdt_scb_init(void);
+extern tAVDT_SCB *avdt_scb_alloc(tAVDT_CS *p_cs);
+extern void avdt_scb_dealloc(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data);
+extern UINT8 avdt_scb_to_hdl(tAVDT_SCB *p_scb);
+extern tAVDT_SCB *avdt_scb_by_hdl(UINT8 hdl);
+extern UINT8 avdt_scb_verify(tAVDT_CCB *p_ccb, UINT8 state, UINT8 *p_seid, UINT16 num_seid, UINT8 *p_err_code);
+extern void avdt_scb_peer_seid_list(tAVDT_MULTI *p_multi);
+extern UINT32 avdt_scb_gen_ssrc(tAVDT_SCB *p_scb);
+
+/* SCB action functions */
+extern void avdt_scb_hdl_abort_cmd(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data);
+extern void avdt_scb_hdl_abort_rsp(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data);
+extern void avdt_scb_hdl_close_cmd(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data);
+extern void avdt_scb_hdl_close_rsp(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data);
+extern void avdt_scb_hdl_getconfig_cmd(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data);
+extern void avdt_scb_hdl_getconfig_rsp(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data);
+extern void avdt_scb_hdl_open_cmd(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data);
+extern void avdt_scb_hdl_open_rej(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data);
+extern void avdt_scb_hdl_open_rsp(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data);
+extern void avdt_scb_hdl_pkt(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data);
+extern void avdt_scb_drop_pkt(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data);
+extern void avdt_scb_hdl_reconfig_cmd(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data);
+extern void avdt_scb_hdl_reconfig_rsp(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data);
+extern void avdt_scb_hdl_security_cmd(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data);
+extern void avdt_scb_hdl_security_rsp(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data);
+extern void avdt_scb_hdl_setconfig_cmd(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data);
+extern void avdt_scb_hdl_setconfig_rej(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data);
+extern void avdt_scb_hdl_setconfig_rsp(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data);
+extern void avdt_scb_hdl_start_cmd(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data);
+extern void avdt_scb_hdl_start_rsp(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data);
+extern void avdt_scb_hdl_suspend_cmd(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data);
+extern void avdt_scb_hdl_suspend_rsp(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data);
+extern void avdt_scb_snd_delay_rpt_req(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data);
+extern void avdt_scb_hdl_delay_rpt_cmd(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data);
+extern void avdt_scb_hdl_delay_rpt_rsp(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data);
+extern void avdt_scb_hdl_tc_close(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data);
+extern void avdt_scb_hdl_tc_open(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data);
+extern void avdt_scb_hdl_tc_close_sto(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data);
+extern void avdt_scb_hdl_tc_open_sto(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data);
+extern void avdt_scb_hdl_write_req(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data);
+extern void avdt_scb_snd_abort_req(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data);
+extern void avdt_scb_snd_abort_rsp(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data);
+extern void avdt_scb_snd_close_req(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data);
+extern void avdt_scb_snd_stream_close(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data);
+extern void avdt_scb_snd_close_rsp(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data);
+extern void avdt_scb_snd_getconfig_req(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data);
+extern void avdt_scb_snd_getconfig_rsp(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data);
+extern void avdt_scb_snd_open_req(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data);
+extern void avdt_scb_snd_open_rsp(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data);
+extern void avdt_scb_snd_reconfig_req(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data);
+extern void avdt_scb_snd_reconfig_rsp(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data);
+extern void avdt_scb_snd_security_req(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data);
+extern void avdt_scb_snd_security_rsp(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data);
+extern void avdt_scb_snd_setconfig_req(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data);
+extern void avdt_scb_snd_setconfig_rej(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data);
+extern void avdt_scb_snd_setconfig_rsp(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data);
+extern void avdt_scb_snd_tc_close(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data);
+extern void avdt_scb_cb_err(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data);
+extern void avdt_scb_cong_state(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data);
+extern void avdt_scb_rej_state(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data);
+extern void avdt_scb_rej_in_use(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data);
+extern void avdt_scb_rej_not_in_use(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data);
+extern void avdt_scb_set_remove(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data);
+extern void avdt_scb_free_pkt(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data);
+extern void avdt_scb_chk_snd_pkt(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data);
+extern void avdt_scb_clr_pkt(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data);
+extern void avdt_scb_transport_channel_timer(tAVDT_SCB *p_scb,
+                                             tAVDT_SCB_EVT *p_data);
+extern void avdt_scb_clr_vars(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data);
+extern void avdt_scb_queue_frags(tAVDT_SCB *p_scb, UINT8 **pp_data, UINT32 *p_data_len);
+
+/* msg function declarations */
+extern BOOLEAN avdt_msg_send(tAVDT_CCB *p_ccb, BT_HDR *p_msg);
+extern void avdt_msg_send_cmd(tAVDT_CCB *p_ccb, void *p_scb, UINT8 sig_id, tAVDT_MSG *p_params);
+extern void avdt_msg_send_rsp(tAVDT_CCB *p_ccb, UINT8 sig_id, tAVDT_MSG *p_params);
+extern void avdt_msg_send_rej(tAVDT_CCB *p_ccb, UINT8 sig_id, tAVDT_MSG *p_params);
+extern void avdt_msg_send_grej(tAVDT_CCB *p_ccb, UINT8 sig_id, tAVDT_MSG *p_params);
+extern void avdt_msg_ind(tAVDT_CCB *p_ccb, BT_HDR *p_buf);
+
+/* adaption layer function declarations */
+extern void avdt_ad_init(void);
+extern UINT8 avdt_ad_type_to_tcid(UINT8 type, tAVDT_SCB *p_scb);
+extern tAVDT_TC_TBL *avdt_ad_tc_tbl_by_st(UINT8 type, tAVDT_CCB *p_ccb, UINT8 state);
+extern tAVDT_TC_TBL *avdt_ad_tc_tbl_by_lcid(UINT16 lcid);
+extern tAVDT_TC_TBL *avdt_ad_tc_tbl_alloc(tAVDT_CCB *p_ccb);
+extern UINT8 avdt_ad_tc_tbl_to_idx(tAVDT_TC_TBL *p_tbl);
+extern void avdt_ad_tc_close_ind(tAVDT_TC_TBL *p_tbl, UINT16 reason);
+extern void avdt_ad_tc_open_ind(tAVDT_TC_TBL *p_tbl);
+extern void avdt_ad_tc_cong_ind(tAVDT_TC_TBL *p_tbl, BOOLEAN is_congested);
+extern void avdt_ad_tc_data_ind(tAVDT_TC_TBL *p_tbl, BT_HDR *p_buf);
+extern tAVDT_TC_TBL *avdt_ad_tc_tbl_by_type(UINT8 type, tAVDT_CCB *p_ccb, tAVDT_SCB *p_scb);
+extern UINT8 avdt_ad_write_req(UINT8 type, tAVDT_CCB *p_ccb, tAVDT_SCB *p_scb, BT_HDR *p_buf);
+extern void avdt_ad_open_req(UINT8 type, tAVDT_CCB *p_ccb, tAVDT_SCB *p_scb, UINT8 role);
+extern void avdt_ad_close_req(UINT8 type, tAVDT_CCB *p_ccb, tAVDT_SCB *p_scb);
+
+extern void avdt_ccb_idle_ccb_timer_timeout(void *data);
+extern void avdt_ccb_ret_ccb_timer_timeout(void *data);
+extern void avdt_ccb_rsp_ccb_timer_timeout(void *data);
+extern void avdt_scb_transport_channel_timer_timeout(void *data);
+
+/*****************************************************************************
+** macros
+*****************************************************************************/
+
+/* we store the scb and the label in the layer_specific field of the
+** current cmd
+*/
+#define AVDT_BLD_LAYERSPEC(ls, msg, label) \
+            ls = (((label) << 4) | (msg))
+
+#define AVDT_LAYERSPEC_LABEL(ls)    ((UINT8)((ls) >> 4))
+
+#define AVDT_LAYERSPEC_MSG(ls)      ((UINT8)((ls) & 0x000F))
+
+/*****************************************************************************
+** global data
+*****************************************************************************/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+/******************************************************************************
+** Main Control Block
+*******************************************************************************/
+#if AVDT_DYNAMIC_MEMORY == FALSE
+extern tAVDT_CB  avdt_cb;
+#else
+extern tAVDT_CB *avdt_cb_ptr;
+#define avdt_cb (*avdt_cb_ptr)
+#endif
+
+
+/* L2CAP callback registration structure */
+extern const tL2CAP_APPL_INFO avdt_l2c_appl;
+
+/* reject message event lookup table */
+extern const UINT8 avdt_msg_rej_2_evt[];
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* AVDT_INT_H */
diff --git a/rtkbt/code/bt/stack/avdt/avdt_l2c.c b/rtkbt/code/bt/stack/avdt/avdt_l2c.c
new file mode 100755
index 0000000..87c7ad9
--- /dev/null
+++ b/rtkbt/code/bt/stack/avdt/avdt_l2c.c
@@ -0,0 +1,547 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2002-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This AVDTP adaption layer module interfaces to L2CAP
+ *
+ ******************************************************************************/
+
+#include <string.h>
+#include "bt_types.h"
+#include "bt_target.h"
+#include "bt_utils.h"
+#include "avdt_api.h"
+#include "avdtc_api.h"
+#include "avdt_int.h"
+#include "l2c_api.h"
+#include "l2cdefs.h"
+#include "btm_api.h"
+#include "btm_int.h"
+#include "device/include/interop.h"
+
+/* callback function declarations */
+void avdt_l2c_connect_ind_cback(BD_ADDR bd_addr, UINT16 lcid, UINT16 psm, UINT8 id);
+void avdt_l2c_connect_cfm_cback(UINT16 lcid, UINT16 result);
+void avdt_l2c_config_cfm_cback(UINT16 lcid, tL2CAP_CFG_INFO *p_cfg);
+void avdt_l2c_config_ind_cback(UINT16 lcid, tL2CAP_CFG_INFO *p_cfg);
+void avdt_l2c_disconnect_ind_cback(UINT16 lcid, BOOLEAN ack_needed);
+void avdt_l2c_disconnect_cfm_cback(UINT16 lcid, UINT16 result);
+void avdt_l2c_congestion_ind_cback(UINT16 lcid, BOOLEAN is_congested);
+void avdt_l2c_data_ind_cback(UINT16 lcid, BT_HDR *p_buf);
+
+/* L2CAP callback function structure */
+const tL2CAP_APPL_INFO avdt_l2c_appl = {
+    avdt_l2c_connect_ind_cback,
+    avdt_l2c_connect_cfm_cback,
+    NULL,
+    avdt_l2c_config_ind_cback,
+    avdt_l2c_config_cfm_cback,
+    avdt_l2c_disconnect_ind_cback,
+    avdt_l2c_disconnect_cfm_cback,
+    NULL,
+    avdt_l2c_data_ind_cback,
+    avdt_l2c_congestion_ind_cback,
+    NULL                /* tL2CA_TX_COMPLETE_CB */
+};
+
+/*******************************************************************************
+**
+** Function         avdt_sec_check_complete_term
+**
+** Description      The function called when Security Manager finishes
+**                  verification of the service side connection
+**
+** Returns          void
+**
+*******************************************************************************/
+static void avdt_sec_check_complete_term (BD_ADDR bd_addr, tBT_TRANSPORT transport,
+                                                 void *p_ref_data, UINT8 res)
+{
+    tAVDT_CCB       *p_ccb = NULL;
+    tL2CAP_CFG_INFO cfg;
+    tAVDT_TC_TBL    *p_tbl;
+    UNUSED(p_ref_data);
+
+    AVDT_TRACE_DEBUG("avdt_sec_check_complete_term res: %d", res);
+    if (!bd_addr)
+    {
+        AVDT_TRACE_WARNING("avdt_sec_check_complete_term: NULL BD_ADDR");
+        return;
+
+    }
+    p_ccb = avdt_ccb_by_bd(bd_addr);
+
+    p_tbl = avdt_ad_tc_tbl_by_st(AVDT_CHAN_SIG, p_ccb, AVDT_AD_ST_SEC_ACP);
+    if (p_tbl == NULL)
+        return;
+
+    if (res == BTM_SUCCESS)
+    {
+        /* Send response to the L2CAP layer. */
+        L2CA_ConnectRsp (bd_addr, p_tbl->id, p_tbl->lcid, L2CAP_CONN_OK, L2CAP_CONN_OK);
+
+        /* store idx in LCID table, store LCID in routing table */
+        avdt_cb.ad.lcid_tbl[p_tbl->lcid - L2CAP_BASE_APPL_CID] = avdt_ad_tc_tbl_to_idx(p_tbl);
+        avdt_cb.ad.rt_tbl[avdt_ccb_to_idx(p_ccb)][p_tbl->tcid].lcid = p_tbl->lcid;
+
+        /* transition to configuration state */
+        p_tbl->state = AVDT_AD_ST_CFG;
+
+        /* Send L2CAP config req */
+        memset(&cfg, 0, sizeof(tL2CAP_CFG_INFO));
+        cfg.mtu_present = TRUE;
+        cfg.mtu = p_tbl->my_mtu;
+        cfg.flush_to_present = TRUE;
+        cfg.flush_to = p_tbl->my_flush_to;
+        L2CA_ConfigReq(p_tbl->lcid, &cfg);
+    }
+    else
+    {
+        L2CA_ConnectRsp (bd_addr, p_tbl->id, p_tbl->lcid, L2CAP_CONN_SECURITY_BLOCK, L2CAP_CONN_OK);
+        avdt_ad_tc_close_ind(p_tbl, L2CAP_CONN_SECURITY_BLOCK);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         avdt_sec_check_complete_orig
+**
+** Description      The function called when Security Manager finishes
+**                  verification of the service side connection
+**
+** Returns          void
+**
+*******************************************************************************/
+static void avdt_sec_check_complete_orig (BD_ADDR bd_addr, tBT_TRANSPORT trasnport,
+                                                void *p_ref_data, UINT8 res)
+{
+    tAVDT_CCB       *p_ccb = NULL;
+    tL2CAP_CFG_INFO cfg;
+    tAVDT_TC_TBL    *p_tbl;
+    UNUSED(p_ref_data);
+
+    AVDT_TRACE_DEBUG("avdt_sec_check_complete_orig res: %d", res);
+    if (bd_addr)
+        p_ccb = avdt_ccb_by_bd(bd_addr);
+    p_tbl = avdt_ad_tc_tbl_by_st(AVDT_CHAN_SIG, p_ccb, AVDT_AD_ST_SEC_INT);
+    if(p_tbl == NULL)
+        return;
+
+    if( res == BTM_SUCCESS )
+    {
+        /* set channel state */
+        p_tbl->state = AVDT_AD_ST_CFG;
+
+        /* Send L2CAP config req */
+        memset(&cfg, 0, sizeof(tL2CAP_CFG_INFO));
+        cfg.mtu_present = TRUE;
+        cfg.mtu = p_tbl->my_mtu;
+        cfg.flush_to_present = TRUE;
+        cfg.flush_to = p_tbl->my_flush_to;
+        L2CA_ConfigReq(p_tbl->lcid, &cfg);
+    }
+    else
+    {
+        L2CA_DisconnectReq (p_tbl->lcid);
+        avdt_ad_tc_close_ind(p_tbl, L2CAP_CONN_SECURITY_BLOCK);
+    }
+}
+/*******************************************************************************
+**
+** Function         avdt_l2c_connect_ind_cback
+**
+** Description      This is the L2CAP connect indication callback function.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void avdt_l2c_connect_ind_cback(BD_ADDR bd_addr, UINT16 lcid, UINT16 psm, UINT8 id)
+{
+    tAVDT_CCB       *p_ccb;
+    tAVDT_TC_TBL    *p_tbl = NULL;
+    UINT16          result;
+    tL2CAP_CFG_INFO cfg;
+    tBTM_STATUS rc;
+    UNUSED(psm);
+
+    /* do we already have a control channel for this peer? */
+    if ((p_ccb = avdt_ccb_by_bd(bd_addr)) == NULL)
+    {
+        /* no, allocate ccb */
+        if ((p_ccb = avdt_ccb_alloc(bd_addr)) == NULL)
+        {
+            /* no ccb available, reject L2CAP connection */
+            result = L2CAP_CONN_NO_RESOURCES;
+        }
+        else
+        {
+            /* allocate and set up entry; first channel is always signaling */
+            p_tbl = avdt_ad_tc_tbl_alloc(p_ccb);
+            p_tbl->my_mtu = avdt_cb.rcb.ctrl_mtu;
+            p_tbl->my_flush_to = L2CAP_DEFAULT_FLUSH_TO;
+            p_tbl->tcid = AVDT_CHAN_SIG;
+            p_tbl->lcid = lcid;
+            p_tbl->id   = id;
+            p_tbl->state = AVDT_AD_ST_SEC_ACP;
+            p_tbl->cfg_flags = AVDT_L2C_CFG_CONN_ACP;
+
+            if (interop_match_addr(INTEROP_2MBPS_LINK_ONLY, (const bt_bdaddr_t *)&bd_addr)) {
+                // Disable 3DH packets for AVDT ACL to improve sensitivity on HS
+                tACL_CONN *p_acl_cb = btm_bda_to_acl(bd_addr, BT_TRANSPORT_BR_EDR);
+                btm_set_packet_types(p_acl_cb, (btm_cb.btm_acl_pkt_types_supported |
+                                                HCI_PKT_TYPES_MASK_NO_3_DH1 |
+                                                HCI_PKT_TYPES_MASK_NO_3_DH3 |
+                                                HCI_PKT_TYPES_MASK_NO_3_DH5));
+            }
+
+            /* Check the security */
+            rc = btm_sec_mx_access_request (bd_addr, AVDT_PSM,
+                FALSE, BTM_SEC_PROTO_AVDT,
+                AVDT_CHAN_SIG,
+                &avdt_sec_check_complete_term, NULL);
+            if(rc == BTM_CMD_STARTED)
+            {
+                L2CA_ConnectRsp (p_ccb->peer_addr, p_tbl->id, lcid, L2CAP_CONN_PENDING, L2CAP_CONN_OK);
+            }
+            return;
+        }
+    }
+    /* deal with simultaneous control channel connect case */
+    else if ((p_tbl = avdt_ad_tc_tbl_by_st(AVDT_CHAN_SIG, p_ccb, AVDT_AD_ST_CONN)) != NULL)
+    {
+        /* reject their connection */
+        result = L2CAP_CONN_NO_RESOURCES;
+    }
+    /* this must be a traffic channel; are we accepting a traffic channel
+    ** for this ccb?
+    */
+    else if ((p_tbl = avdt_ad_tc_tbl_by_st(AVDT_CHAN_MEDIA, p_ccb, AVDT_AD_ST_ACP)) != NULL)
+    {
+        /* yes; proceed with connection */
+        result = L2CAP_CONN_OK;
+    }
+#if AVDT_REPORTING == TRUE
+    /* this must be a reporting channel; are we accepting a reporting channel
+    ** for this ccb?
+    */
+    else if ((p_tbl = avdt_ad_tc_tbl_by_st(AVDT_CHAN_REPORT, p_ccb, AVDT_AD_ST_ACP)) != NULL)
+    {
+        /* yes; proceed with connection */
+        result = L2CAP_CONN_OK;
+    }
+#endif
+    /* else we're not listening for traffic channel; reject */
+    else
+    {
+        result = L2CAP_CONN_NO_PSM;
+    }
+
+    /* Send L2CAP connect rsp */
+    L2CA_ConnectRsp(bd_addr, id, lcid, result, 0);
+
+    /* if result ok, proceed with connection */
+    if (result == L2CAP_CONN_OK)
+    {
+        /* store idx in LCID table, store LCID in routing table */
+        avdt_cb.ad.lcid_tbl[lcid - L2CAP_BASE_APPL_CID] = avdt_ad_tc_tbl_to_idx(p_tbl);
+        avdt_cb.ad.rt_tbl[avdt_ccb_to_idx(p_ccb)][p_tbl->tcid].lcid = lcid;
+
+        /* transition to configuration state */
+        p_tbl->state = AVDT_AD_ST_CFG;
+
+        /* Send L2CAP config req */
+        memset(&cfg, 0, sizeof(tL2CAP_CFG_INFO));
+        cfg.mtu_present = TRUE;
+        cfg.mtu = p_tbl->my_mtu;
+        cfg.flush_to_present = TRUE;
+        cfg.flush_to = p_tbl->my_flush_to;
+        L2CA_ConfigReq(lcid, &cfg);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         avdt_l2c_connect_cfm_cback
+**
+** Description      This is the L2CAP connect confirm callback function.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void avdt_l2c_connect_cfm_cback(UINT16 lcid, UINT16 result)
+{
+    tAVDT_TC_TBL    *p_tbl;
+    tL2CAP_CFG_INFO cfg;
+    tAVDT_CCB *p_ccb;
+
+    AVDT_TRACE_DEBUG("avdt_l2c_connect_cfm_cback lcid: %d, result: %d",
+        lcid, result);
+    /* look up info for this channel */
+    if ((p_tbl = avdt_ad_tc_tbl_by_lcid(lcid)) != NULL)
+    {
+        /* if in correct state */
+        if (p_tbl->state == AVDT_AD_ST_CONN)
+        {
+            /* if result successful */
+            if (result == L2CAP_CONN_OK)
+            {
+                if(p_tbl->tcid != AVDT_CHAN_SIG)
+                {
+                    /* set channel state */
+                    p_tbl->state = AVDT_AD_ST_CFG;
+
+                    /* Send L2CAP config req */
+                    memset(&cfg, 0, sizeof(tL2CAP_CFG_INFO));
+                    cfg.mtu_present = TRUE;
+                    cfg.mtu = p_tbl->my_mtu;
+                    cfg.flush_to_present = TRUE;
+                    cfg.flush_to = p_tbl->my_flush_to;
+                    L2CA_ConfigReq(lcid, &cfg);
+                }
+                else
+                {
+                    p_ccb = avdt_ccb_by_idx(p_tbl->ccb_idx);
+                    if(p_ccb == NULL)
+                    {
+                        result = L2CAP_CONN_NO_RESOURCES;
+                    }
+                    else
+                    {
+                        /* set channel state */
+                        p_tbl->state = AVDT_AD_ST_SEC_INT;
+                        p_tbl->lcid = lcid;
+                        p_tbl->cfg_flags = AVDT_L2C_CFG_CONN_INT;
+
+                        if (interop_match_addr(INTEROP_2MBPS_LINK_ONLY, (const bt_bdaddr_t *) &p_ccb->peer_addr)) {
+                            // Disable 3DH packets for AVDT ACL to improve sensitivity on HS
+                            tACL_CONN *p_acl_cb = btm_bda_to_acl(p_ccb->peer_addr, BT_TRANSPORT_BR_EDR);
+                            btm_set_packet_types(p_acl_cb, (btm_cb.btm_acl_pkt_types_supported |
+                                                            HCI_PKT_TYPES_MASK_NO_3_DH1 |
+                                                            HCI_PKT_TYPES_MASK_NO_3_DH3 |
+                                                            HCI_PKT_TYPES_MASK_NO_3_DH5));
+                        }
+
+                        /* Check the security */
+                        btm_sec_mx_access_request (p_ccb->peer_addr, AVDT_PSM,
+                            TRUE, BTM_SEC_PROTO_AVDT,
+                            AVDT_CHAN_SIG,
+                            &avdt_sec_check_complete_orig, NULL);
+                    }
+                }
+            }
+
+            /* failure; notify adaption that channel closed */
+            if (result != L2CAP_CONN_OK)
+            {
+                avdt_ad_tc_close_ind(p_tbl, result);
+            }
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         avdt_l2c_config_cfm_cback
+**
+** Description      This is the L2CAP config confirm callback function.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void avdt_l2c_config_cfm_cback(UINT16 lcid, tL2CAP_CFG_INFO *p_cfg)
+{
+    tAVDT_TC_TBL    *p_tbl;
+
+    /* look up info for this channel */
+    if ((p_tbl = avdt_ad_tc_tbl_by_lcid(lcid)) != NULL)
+    {
+        p_tbl->lcid = lcid;
+
+        /* if in correct state */
+        if (p_tbl->state == AVDT_AD_ST_CFG)
+        {
+            /* if result successful */
+            if (p_cfg->result == L2CAP_CONN_OK)
+            {
+                /* update cfg_flags */
+                p_tbl->cfg_flags |= AVDT_L2C_CFG_CFM_DONE;
+
+                /* if configuration complete */
+                if (p_tbl->cfg_flags & AVDT_L2C_CFG_IND_DONE)
+                {
+                    avdt_ad_tc_open_ind(p_tbl);
+                }
+            }
+            /* else failure */
+            else
+            {
+                /* Send L2CAP disconnect req */
+                L2CA_DisconnectReq(lcid);
+            }
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         avdt_l2c_config_ind_cback
+**
+** Description      This is the L2CAP config indication callback function.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void avdt_l2c_config_ind_cback(UINT16 lcid, tL2CAP_CFG_INFO *p_cfg)
+{
+    tAVDT_TC_TBL    *p_tbl;
+
+    /* look up info for this channel */
+    if ((p_tbl = avdt_ad_tc_tbl_by_lcid(lcid)) != NULL)
+    {
+        /* store the mtu in tbl */
+        if (p_cfg->mtu_present)
+        {
+            p_tbl->peer_mtu = p_cfg->mtu;
+        }
+        else
+        {
+            p_tbl->peer_mtu = L2CAP_DEFAULT_MTU;
+        }
+        AVDT_TRACE_DEBUG("peer_mtu: %d, lcid: x%x",p_tbl->peer_mtu, lcid);
+
+        /* send L2CAP configure response */
+        memset(p_cfg, 0, sizeof(tL2CAP_CFG_INFO));
+        p_cfg->result = L2CAP_CFG_OK;
+        L2CA_ConfigRsp(lcid, p_cfg);
+
+        /* if first config ind */
+        if ((p_tbl->cfg_flags & AVDT_L2C_CFG_IND_DONE) == 0)
+        {
+            /* update cfg_flags */
+            p_tbl->cfg_flags |= AVDT_L2C_CFG_IND_DONE;
+
+            /* if configuration complete */
+            if (p_tbl->cfg_flags & AVDT_L2C_CFG_CFM_DONE)
+            {
+                avdt_ad_tc_open_ind(p_tbl);
+            }
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         avdt_l2c_disconnect_ind_cback
+**
+** Description      This is the L2CAP disconnect indication callback function.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void avdt_l2c_disconnect_ind_cback(UINT16 lcid, BOOLEAN ack_needed)
+{
+    tAVDT_TC_TBL    *p_tbl;
+
+    AVDT_TRACE_DEBUG("avdt_l2c_disconnect_ind_cback lcid: %d, ack_needed: %d",
+        lcid, ack_needed);
+    /* look up info for this channel */
+    if ((p_tbl = avdt_ad_tc_tbl_by_lcid(lcid)) != NULL)
+    {
+        if (ack_needed)
+        {
+            /* send L2CAP disconnect response */
+            L2CA_DisconnectRsp(lcid);
+        }
+
+        avdt_ad_tc_close_ind(p_tbl, 0);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         avdt_l2c_disconnect_cfm_cback
+**
+** Description      This is the L2CAP disconnect confirm callback function.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void avdt_l2c_disconnect_cfm_cback(UINT16 lcid, UINT16 result)
+{
+    tAVDT_TC_TBL    *p_tbl;
+
+    AVDT_TRACE_DEBUG("avdt_l2c_disconnect_cfm_cback lcid: %d, result: %d",
+        lcid, result);
+    /* look up info for this channel */
+    if ((p_tbl = avdt_ad_tc_tbl_by_lcid(lcid)) != NULL)
+    {
+        avdt_ad_tc_close_ind(p_tbl, result);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         avdt_l2c_congestion_ind_cback
+**
+** Description      This is the L2CAP congestion indication callback function.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void avdt_l2c_congestion_ind_cback(UINT16 lcid, BOOLEAN is_congested)
+{
+    tAVDT_TC_TBL    *p_tbl;
+
+    /* look up info for this channel */
+    if ((p_tbl = avdt_ad_tc_tbl_by_lcid(lcid)) != NULL)
+    {
+        avdt_ad_tc_cong_ind(p_tbl, is_congested);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         avdt_l2c_data_ind_cback
+**
+** Description      This is the L2CAP data indication callback function.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void avdt_l2c_data_ind_cback(UINT16 lcid, BT_HDR *p_buf)
+{
+    tAVDT_TC_TBL    *p_tbl;
+
+    /* look up info for this channel */
+    if ((p_tbl = avdt_ad_tc_tbl_by_lcid(lcid)) != NULL)
+    {
+        avdt_ad_tc_data_ind(p_tbl, p_buf);
+    }
+    else /* prevent buffer leak */
+        osi_free(p_buf);
+}
+
diff --git a/rtkbt/code/bt/stack/avdt/avdt_msg.c b/rtkbt/code/bt/stack/avdt/avdt_msg.c
new file mode 100755
index 0000000..adc1ae7
--- /dev/null
+++ b/rtkbt/code/bt/stack/avdt/avdt_msg.c
@@ -0,0 +1,1897 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2002-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This module contains functions for parsing and building AVDTP signaling
+ *  messages.  It also contains functions called by the SCB or CCB state
+ *  machines for sending command, response, and reject messages.  It also
+ *  contains a function that processes incoming messages and dispatches them
+ *  to the appropriate SCB or CCB.
+ *
+ ******************************************************************************/
+
+#include <string.h>
+#include "bt_types.h"
+#include "bt_target.h"
+#include "bt_utils.h"
+#include "avdt_api.h"
+#include "avdtc_api.h"
+#include "avdt_int.h"
+#include "bt_common.h"
+#include "btu.h"
+
+extern fixed_queue_t *btu_general_alarm_queue;
+
+/*****************************************************************************
+** constants
+*****************************************************************************/
+
+/* mask of all psc values */
+#define AVDT_MSG_PSC_MASK   (AVDT_PSC_TRANS | AVDT_PSC_REPORT | AVDT_PSC_DELAY_RPT | \
+                             AVDT_PSC_RECOV | AVDT_PSC_HDRCMP | AVDT_PSC_MUX)
+#define AVDT_PSC_PROTECT    (1<<4)  /* Content Protection */
+#define AVDT_PSC_CODEC      (1<<7)  /* codec */
+
+
+/*****************************************************************************
+** type definitions
+*****************************************************************************/
+
+/* type for message building functions */
+typedef void (*tAVDT_MSG_BLD)(UINT8 **p, tAVDT_MSG *p_msg);
+
+/* type for message parsing functions */
+typedef UINT8 (*tAVDT_MSG_PRS)(tAVDT_MSG *p_msg, UINT8 *p, UINT16 len);
+
+
+/*****************************************************************************
+** local function declarations
+*****************************************************************************/
+
+static void avdt_msg_bld_none(UINT8 **p, tAVDT_MSG *p_msg);
+static void avdt_msg_bld_single(UINT8 **p, tAVDT_MSG *p_msg);
+static void avdt_msg_bld_setconfig_cmd(UINT8 **p, tAVDT_MSG *p_msg);
+static void avdt_msg_bld_reconfig_cmd(UINT8 **p, tAVDT_MSG *p_msg);
+static void avdt_msg_bld_multi(UINT8 **p, tAVDT_MSG *p_msg);
+static void avdt_msg_bld_security_cmd(UINT8 **p, tAVDT_MSG *p_msg);
+static void avdt_msg_bld_discover_rsp(UINT8 **p, tAVDT_MSG *p_msg);
+static void avdt_msg_bld_svccap(UINT8 **p, tAVDT_MSG *p_msg);
+static void avdt_msg_bld_security_rsp(UINT8 **p, tAVDT_MSG *p_msg);
+static void avdt_msg_bld_all_svccap(UINT8 **p, tAVDT_MSG *p_msg);
+static void avdt_msg_bld_delay_rpt(UINT8 **p, tAVDT_MSG *p_msg);
+
+static UINT8 avdt_msg_prs_none(tAVDT_MSG *p_msg, UINT8 *p, UINT16 len);
+static UINT8 avdt_msg_prs_single(tAVDT_MSG *p_msg, UINT8 *p, UINT16 len);
+static UINT8 avdt_msg_prs_setconfig_cmd(tAVDT_MSG *p_msg, UINT8 *p, UINT16 len);
+static UINT8 avdt_msg_prs_reconfig_cmd(tAVDT_MSG *p_msg, UINT8 *p, UINT16 len);
+static UINT8 avdt_msg_prs_multi(tAVDT_MSG *p_msg, UINT8 *p, UINT16 len);
+static UINT8 avdt_msg_prs_security_cmd(tAVDT_MSG *p_msg, UINT8 *p, UINT16 len);
+static UINT8 avdt_msg_prs_discover_rsp(tAVDT_MSG *p_msg, UINT8 *p, UINT16 len);
+static UINT8 avdt_msg_prs_svccap(tAVDT_MSG *p_msg, UINT8 *p, UINT16 len);
+static UINT8 avdt_msg_prs_all_svccap(tAVDT_MSG *p_msg, UINT8 *p, UINT16 len);
+static UINT8 avdt_msg_prs_security_rsp(tAVDT_MSG *p_msg, UINT8 *p, UINT16 len);
+static UINT8 avdt_msg_prs_delay_rpt (tAVDT_MSG *p_msg, UINT8 *p, UINT16 len);
+
+/*****************************************************************************
+** constants
+*****************************************************************************/
+
+/* table of information element minimum lengths used for parsing */
+const UINT8 avdt_msg_ie_len_min[] = {
+    0,                              /* unused */
+    AVDT_LEN_TRANS_MIN,             /* media transport */
+    AVDT_LEN_REPORT_MIN,            /* reporting */
+    AVDT_LEN_RECOV_MIN,             /* recovery */
+    AVDT_LEN_PROTECT_MIN,           /* content protection */
+    AVDT_LEN_HDRCMP_MIN,            /* header compression */
+    AVDT_LEN_MUX_MIN,               /* multiplexing */
+    AVDT_LEN_CODEC_MIN,             /* codec */
+    AVDT_LEN_DELAY_RPT_MIN          /* delay report */
+};
+
+/* table of information element minimum lengths used for parsing */
+const UINT8 avdt_msg_ie_len_max[] = {
+    0,                              /* unused */
+    AVDT_LEN_TRANS_MAX,             /* media transport */
+    AVDT_LEN_REPORT_MAX,            /* reporting */
+    AVDT_LEN_RECOV_MAX,             /* recovery */
+    AVDT_LEN_PROTECT_MAX,           /* content protection */
+    AVDT_LEN_HDRCMP_MAX,            /* header compression */
+    AVDT_LEN_MUX_MAX,               /* multiplexing */
+    AVDT_LEN_CODEC_MAX,             /* codec */
+    AVDT_LEN_DELAY_RPT_MAX          /* delay report */
+};
+
+/* table of error codes used when decoding information elements */
+const UINT8 avdt_msg_ie_err[] = {
+    0,                              /* unused */
+    AVDT_ERR_MEDIA_TRANS,           /* media transport */
+    AVDT_ERR_LENGTH,                /* reporting */
+    AVDT_ERR_RECOV_FMT,             /* recovery */
+    AVDT_ERR_CP_FMT,                /* content protection */
+    AVDT_ERR_ROHC_FMT,              /* header compression */
+    AVDT_ERR_MUX_FMT,               /* multiplexing */
+    AVDT_ERR_SERVICE,               /* codec */
+    AVDT_ERR_SERVICE                /* delay report ?? */
+};
+
+/* table of packet type minimum lengths */
+static const UINT8 avdt_msg_pkt_type_len[] = {
+    AVDT_LEN_TYPE_SINGLE,
+    AVDT_LEN_TYPE_START,
+    AVDT_LEN_TYPE_CONT,
+    AVDT_LEN_TYPE_END
+};
+
+/* function table for building command messages */
+const tAVDT_MSG_BLD avdt_msg_bld_cmd[] = {
+    avdt_msg_bld_none,            /* discover */
+    avdt_msg_bld_single,          /* get capabilities */
+    avdt_msg_bld_setconfig_cmd,   /* set configuration */
+    avdt_msg_bld_single,          /* get configuration */
+    avdt_msg_bld_reconfig_cmd,    /* reconfigure */
+    avdt_msg_bld_single,          /* open */
+    avdt_msg_bld_multi,           /* start */
+    avdt_msg_bld_single,          /* close */
+    avdt_msg_bld_multi,           /* suspend */
+    avdt_msg_bld_single,          /* abort */
+    avdt_msg_bld_security_cmd,    /* security control */
+    avdt_msg_bld_single,          /* get all capabilities */
+    avdt_msg_bld_delay_rpt        /* delay report */
+};
+
+/* function table for building response messages */
+const tAVDT_MSG_BLD avdt_msg_bld_rsp[] = {
+    avdt_msg_bld_discover_rsp,    /* discover */
+    avdt_msg_bld_svccap,          /* get capabilities */
+    avdt_msg_bld_none,            /* set configuration */
+    avdt_msg_bld_all_svccap,      /* get configuration */
+    avdt_msg_bld_none,            /* reconfigure */
+    avdt_msg_bld_none,            /* open */
+    avdt_msg_bld_none,            /* start */
+    avdt_msg_bld_none,            /* close */
+    avdt_msg_bld_none,            /* suspend */
+    avdt_msg_bld_none,            /* abort */
+    avdt_msg_bld_security_rsp,    /* security control */
+    avdt_msg_bld_all_svccap,      /* get all capabilities */
+    avdt_msg_bld_none             /* delay report */
+};
+
+/* function table for parsing command messages */
+const tAVDT_MSG_PRS avdt_msg_prs_cmd[] = {
+    avdt_msg_prs_none,            /* discover */
+    avdt_msg_prs_single,          /* get capabilities */
+    avdt_msg_prs_setconfig_cmd,   /* set configuration */
+    avdt_msg_prs_single,          /* get configuration */
+    avdt_msg_prs_reconfig_cmd,    /* reconfigure */
+    avdt_msg_prs_single,          /* open */
+    avdt_msg_prs_multi,           /* start */
+    avdt_msg_prs_single,          /* close */
+    avdt_msg_prs_multi,           /* suspend */
+    avdt_msg_prs_single,          /* abort */
+    avdt_msg_prs_security_cmd,    /* security control */
+    avdt_msg_prs_single,          /* get all capabilities */
+    avdt_msg_prs_delay_rpt        /* delay report */
+};
+
+/* function table for parsing response messages */
+const tAVDT_MSG_PRS avdt_msg_prs_rsp[] = {
+    avdt_msg_prs_discover_rsp,    /* discover */
+    avdt_msg_prs_svccap,          /* get capabilities */
+    avdt_msg_prs_none,            /* set configuration */
+    avdt_msg_prs_all_svccap,      /* get configuration */
+    avdt_msg_prs_none,            /* reconfigure */
+    avdt_msg_prs_none,            /* open */
+    avdt_msg_prs_none,            /* start */
+    avdt_msg_prs_none,            /* close */
+    avdt_msg_prs_none,            /* suspend */
+    avdt_msg_prs_none,            /* abort */
+    avdt_msg_prs_security_rsp,    /* security control */
+    avdt_msg_prs_all_svccap,      /* get all capabilities */
+    avdt_msg_prs_none             /* delay report */
+};
+
+/* command message-to-event lookup table */
+const UINT8 avdt_msg_cmd_2_evt[] = {
+    AVDT_CCB_MSG_DISCOVER_CMD_EVT + AVDT_CCB_MKR,   /* discover */
+    AVDT_CCB_MSG_GETCAP_CMD_EVT + AVDT_CCB_MKR,     /* get capabilities */
+    AVDT_SCB_MSG_SETCONFIG_CMD_EVT,                 /* set configuration */
+    AVDT_SCB_MSG_GETCONFIG_CMD_EVT,                 /* get configuration */
+    AVDT_SCB_MSG_RECONFIG_CMD_EVT,                  /* reconfigure */
+    AVDT_SCB_MSG_OPEN_CMD_EVT,                      /* open */
+    AVDT_CCB_MSG_START_CMD_EVT + AVDT_CCB_MKR,      /* start */
+    AVDT_SCB_MSG_CLOSE_CMD_EVT,                     /* close */
+    AVDT_CCB_MSG_SUSPEND_CMD_EVT + AVDT_CCB_MKR,    /* suspend */
+    AVDT_SCB_MSG_ABORT_CMD_EVT,                     /* abort */
+    AVDT_SCB_MSG_SECURITY_CMD_EVT,                  /* security control */
+    AVDT_CCB_MSG_GETCAP_CMD_EVT + AVDT_CCB_MKR,     /* get all capabilities */
+    AVDT_SCB_MSG_DELAY_RPT_CMD_EVT                  /* delay report */
+};
+
+/* response message-to-event lookup table */
+const UINT8 avdt_msg_rsp_2_evt[] = {
+    AVDT_CCB_MSG_DISCOVER_RSP_EVT + AVDT_CCB_MKR,   /* discover */
+    AVDT_CCB_MSG_GETCAP_RSP_EVT + AVDT_CCB_MKR,     /* get capabilities */
+    AVDT_SCB_MSG_SETCONFIG_RSP_EVT,                 /* set configuration */
+    AVDT_SCB_MSG_GETCONFIG_RSP_EVT,                 /* get configuration */
+    AVDT_SCB_MSG_RECONFIG_RSP_EVT,                  /* reconfigure */
+    AVDT_SCB_MSG_OPEN_RSP_EVT,                      /* open */
+    AVDT_CCB_MSG_START_RSP_EVT + AVDT_CCB_MKR,      /* start */
+    AVDT_SCB_MSG_CLOSE_RSP_EVT,                     /* close */
+    AVDT_CCB_MSG_SUSPEND_RSP_EVT + AVDT_CCB_MKR,    /* suspend */
+    AVDT_SCB_MSG_ABORT_RSP_EVT,                     /* abort */
+    AVDT_SCB_MSG_SECURITY_RSP_EVT,                  /* security control */
+    AVDT_CCB_MSG_GETCAP_RSP_EVT + AVDT_CCB_MKR,     /* get all capabilities */
+    AVDT_SCB_MSG_DELAY_RPT_RSP_EVT                  /* delay report */
+};
+
+/* reject message-to-event lookup table */
+const UINT8 avdt_msg_rej_2_evt[] = {
+    AVDT_CCB_MSG_DISCOVER_RSP_EVT + AVDT_CCB_MKR,   /* discover */
+    AVDT_CCB_MSG_GETCAP_RSP_EVT + AVDT_CCB_MKR,     /* get capabilities */
+    AVDT_SCB_MSG_SETCONFIG_REJ_EVT,                 /* set configuration */
+    AVDT_SCB_MSG_GETCONFIG_RSP_EVT,                 /* get configuration */
+    AVDT_SCB_MSG_RECONFIG_RSP_EVT,                  /* reconfigure */
+    AVDT_SCB_MSG_OPEN_REJ_EVT,                      /* open */
+    AVDT_CCB_MSG_START_RSP_EVT + AVDT_CCB_MKR,      /* start */
+    AVDT_SCB_MSG_CLOSE_RSP_EVT,                     /* close */
+    AVDT_CCB_MSG_SUSPEND_RSP_EVT + AVDT_CCB_MKR,    /* suspend */
+    AVDT_SCB_MSG_ABORT_RSP_EVT,                     /* abort */
+    AVDT_SCB_MSG_SECURITY_RSP_EVT,                  /* security control */
+    AVDT_CCB_MSG_GETCAP_RSP_EVT + AVDT_CCB_MKR,     /* get all capabilities */
+    0                                               /* delay report */
+};
+
+/*******************************************************************************
+**
+** Function         avdt_msg_bld_cfg
+**
+** Description      This function builds the configuration parameters contained
+**                  in a command or response message.
+**
+**
+** Returns          void.
+**
+*******************************************************************************/
+static void avdt_msg_bld_cfg(UINT8 **p, tAVDT_CFG *p_cfg)
+{
+    UINT8 len;
+
+    /* for now, just build media transport, codec, and content protection, and multiplexing */
+
+    /* media transport */
+    if (p_cfg->psc_mask & AVDT_PSC_TRANS)
+    {
+        *(*p)++ = AVDT_CAT_TRANS;
+        *(*p)++ = 0; /* length */
+    }
+
+#if AVDT_REPORTING == TRUE
+    /* reporting transport */
+    if (p_cfg->psc_mask & AVDT_PSC_REPORT)
+    {
+        *(*p)++ = AVDT_CAT_REPORT;
+        *(*p)++ = 0; /* length */
+    }
+#endif
+
+    /* codec */
+    if (p_cfg->num_codec != 0)
+    {
+        *(*p)++ = AVDT_CAT_CODEC;
+        len = p_cfg->codec_info[0] + 1;
+        if( len > AVDT_CODEC_SIZE )
+            len = AVDT_CODEC_SIZE;
+
+        memcpy(*p, p_cfg->codec_info, len);
+        *p += len;
+    }
+
+    /* content protection */
+    if (p_cfg->num_protect != 0)
+    {
+        *(*p)++ = AVDT_CAT_PROTECT;
+        len = p_cfg->protect_info[0] + 1;
+        if( len > AVDT_PROTECT_SIZE )
+            len = AVDT_PROTECT_SIZE;
+
+        memcpy(*p, p_cfg->protect_info, len);
+        *p += len;
+    }
+
+#if AVDT_MULTIPLEXING == TRUE
+    /* multiplexing */
+    if (p_cfg->psc_mask & AVDT_PSC_MUX)
+    {
+        *(*p)++ = AVDT_CAT_MUX;
+        /* length */
+        if (p_cfg->psc_mask & AVDT_PSC_RECOV)
+            *(*p)++ = 7; /* frag (1) + media + report + recovery */
+        else if (p_cfg->psc_mask & AVDT_PSC_REPORT)
+            *(*p)++ = 5; /* frag (1) + media + report */
+        else
+            *(*p)++ = 3; /* frag (1) + media */
+
+        /* allow fragmentation */
+        if(p_cfg->mux_mask & AVDT_MUX_FRAG)
+            *(*p)++ = 0x80;
+        else
+            *(*p)++ = 0;
+
+        /* media transport session */
+        *(*p)++ = p_cfg->mux_tsid_media<<3; /* TSID */
+        *(*p)++ = p_cfg->mux_tcid_media<<3; /* TCID */
+
+        if (p_cfg->psc_mask & AVDT_PSC_RECOV)
+        {
+            /* reporting transport session */
+            *(*p)++ = p_cfg->mux_tsid_report<<3; /* TSID */
+            *(*p)++ = p_cfg->mux_tcid_report<<3; /* TCID */
+            /* recovery transport session */
+            *(*p)++ = p_cfg->mux_tsid_recov<<3; /* TSID */
+            *(*p)++ = p_cfg->mux_tcid_recov<<3; /* TCID */
+        }
+        else if (p_cfg->psc_mask & AVDT_PSC_REPORT)
+        {
+            /* reporting transport session */
+            *(*p)++ = p_cfg->mux_tsid_report<<3; /* TSID */
+            *(*p)++ = p_cfg->mux_tcid_report<<3; /* TCID */
+        }
+    }
+#endif
+
+    /* delay report */
+    if (p_cfg->psc_mask & AVDT_PSC_DELAY_RPT)
+    {
+        *(*p)++ = AVDT_CAT_DELAY_RPT;
+        *(*p)++ = 0; /* length */
+    }
+}
+
+/*******************************************************************************
+**
+** Function         avdt_msg_bld_none
+**
+** Description      This message building function builds an empty message.
+**
+**
+** Returns          void.
+**
+*******************************************************************************/
+static void avdt_msg_bld_none(UINT8 **p, tAVDT_MSG *p_msg)
+{
+    UNUSED(p);
+    UNUSED(p_msg);
+    return;
+}
+
+/*******************************************************************************
+**
+** Function         avdt_msg_bld_single
+**
+** Description      This message building function builds a message containing
+**                  a single SEID.
+**
+**
+** Returns          void.
+**
+*******************************************************************************/
+static void avdt_msg_bld_single(UINT8 **p, tAVDT_MSG *p_msg)
+{
+    AVDT_MSG_BLD_SEID(*p, p_msg->single.seid);
+}
+
+/*******************************************************************************
+**
+** Function         avdt_msg_bld_setconfig_cmd
+**
+** Description      This message building function builds a set configuration
+**                  command message.
+**
+**
+** Returns          void.
+**
+*******************************************************************************/
+static void avdt_msg_bld_setconfig_cmd(UINT8 **p, tAVDT_MSG *p_msg)
+{
+    AVDT_MSG_BLD_SEID(*p, p_msg->config_cmd.hdr.seid);
+    AVDT_MSG_BLD_SEID(*p, p_msg->config_cmd.int_seid);
+    avdt_msg_bld_cfg(p, p_msg->config_cmd.p_cfg);
+}
+
+/*******************************************************************************
+**
+** Function         avdt_msg_bld_reconfig_cmd
+**
+** Description      This message building function builds a reconfiguration
+**                  command message.
+**
+**
+** Returns          void.
+**
+*******************************************************************************/
+static void avdt_msg_bld_reconfig_cmd(UINT8 **p, tAVDT_MSG *p_msg)
+{
+    AVDT_MSG_BLD_SEID(*p, p_msg->reconfig_cmd.hdr.seid);
+
+    /* force psc mask zero to build only codec and security */
+    p_msg->reconfig_cmd.p_cfg->psc_mask = 0;
+    avdt_msg_bld_cfg(p, p_msg->reconfig_cmd.p_cfg);
+}
+
+/*******************************************************************************
+**
+** Function         avdt_msg_bld_multi
+**
+** Description      This message building function builds a message containing
+**                  multiple SEID's.
+**
+**
+** Returns          void.
+**
+*******************************************************************************/
+static void avdt_msg_bld_multi(UINT8 **p, tAVDT_MSG *p_msg)
+{
+    int i;
+
+    for (i = 0; i < p_msg->multi.num_seps; i++)
+    {
+        AVDT_MSG_BLD_SEID(*p, p_msg->multi.seid_list[i]);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         avdt_msg_bld_security_cmd
+**
+** Description      This message building function builds a security
+**                  command message.
+**
+** Returns          void.
+**
+*******************************************************************************/
+static void avdt_msg_bld_security_cmd(UINT8 **p, tAVDT_MSG *p_msg)
+{
+    AVDT_MSG_BLD_SEID(*p, p_msg->security_cmd.hdr.seid);
+    memcpy(*p, p_msg->security_cmd.p_data, p_msg->security_cmd.len);
+    *p += p_msg->security_cmd.len;
+}
+
+/*******************************************************************************
+**
+** Function         avdt_msg_bld_delay_rpt
+**
+** Description      This message building function builds a delay report
+**                  command message.
+**
+** Returns          void.
+**
+*******************************************************************************/
+static void avdt_msg_bld_delay_rpt(UINT8 **p, tAVDT_MSG *p_msg)
+{
+    AVDT_MSG_BLD_SEID(*p, p_msg->delay_rpt_cmd.hdr.seid);
+    UINT16_TO_BE_STREAM(*p, p_msg->delay_rpt_cmd.delay);
+}
+
+/*******************************************************************************
+**
+** Function         avdt_msg_bld_discover_rsp
+**
+** Description      This message building function builds a discover
+**                  response message.
+**
+**
+** Returns          void.
+**
+*******************************************************************************/
+static void avdt_msg_bld_discover_rsp(UINT8 **p, tAVDT_MSG *p_msg)
+{
+    int     i;
+
+    for (i = 0; i < p_msg->discover_rsp.num_seps; i++)
+    {
+        /* build discover rsp info */
+        AVDT_MSG_BLD_DISC(*p, p_msg->discover_rsp.p_sep_info[i].seid,
+                              p_msg->discover_rsp.p_sep_info[i].in_use,
+                              p_msg->discover_rsp.p_sep_info[i].media_type,
+                              p_msg->discover_rsp.p_sep_info[i].tsep);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         avdt_msg_bld_svccap
+**
+** Description      This message building function builds a message containing
+**                  service capabilities parameters.
+**
+**
+** Returns          void.
+**
+*******************************************************************************/
+static void avdt_msg_bld_svccap(UINT8 **p, tAVDT_MSG *p_msg)
+{
+    tAVDT_CFG cfg;
+
+    /* make sure the delay report category is not reported */
+    memcpy (&cfg, p_msg->svccap.p_cfg, sizeof(tAVDT_CFG));
+    cfg.psc_mask &= ~AVDT_PSC_DELAY_RPT;
+    avdt_msg_bld_cfg(p, &cfg);
+}
+
+/*******************************************************************************
+**
+** Function         avdt_msg_bld_all_svccap
+**
+** Description      This message building function builds a message containing
+**                  service capabilities parameters.
+**
+**
+** Returns          void.
+**
+*******************************************************************************/
+static void avdt_msg_bld_all_svccap(UINT8 **p, tAVDT_MSG *p_msg)
+{
+    avdt_msg_bld_cfg(p, p_msg->svccap.p_cfg);
+}
+
+/*******************************************************************************
+**
+** Function         avdt_msg_bld_security_rsp
+**
+** Description      This message building function builds a security
+**                  response message.
+**
+**
+** Returns          void.
+**
+*******************************************************************************/
+static void avdt_msg_bld_security_rsp(UINT8 **p, tAVDT_MSG *p_msg)
+{
+    memcpy(*p, p_msg->security_rsp.p_data, p_msg->security_rsp.len);
+    *p += p_msg->security_rsp.len;
+}
+
+/*******************************************************************************
+**
+** Function         avdt_msg_prs_cfg
+**
+** Description      This message parsing function parses the configuration
+**                  parameters field of a message.
+**
+**
+** Returns          Error code or zero if no error, and element that failed
+**                  in p_elem.
+**
+*******************************************************************************/
+static UINT8 avdt_msg_prs_cfg(tAVDT_CFG *p_cfg, UINT8 *p, UINT16 len, UINT8* p_elem, UINT8 sig_id)
+{
+    UINT8   *p_end;
+    UINT8   elem = 0;
+    UINT8   elem_len;
+    UINT8   tmp;
+    UINT8   err = 0;
+    UINT8   protect_offset = 0;
+
+    if (!p_cfg)
+    {
+        AVDT_TRACE_ERROR ("not expecting this cfg");
+        return AVDT_ERR_BAD_STATE;
+    }
+
+    p_cfg->psc_mask = 0;
+    p_cfg->num_codec = 0;
+    p_cfg->num_protect = 0;
+#if AVDT_MULTIPLEXING == TRUE
+    p_cfg->mux_mask = 0;
+#endif
+
+    /* while there is still data to parse */
+    p_end = p + len;
+    while ((p < p_end) && (err == 0))
+    {
+        /* verify overall length */
+        if ((p_end - p) < AVDT_LEN_CFG_MIN)
+        {
+            err = AVDT_ERR_PAYLOAD;
+            break;
+        }
+
+        /* get and verify info elem id, length */
+        elem = *p++;
+        elem_len = *p++;
+
+        if ((elem == 0) || (elem > AVDT_CAT_MAX_CUR))
+        {
+            /* this may not be really bad.
+             * It may be a service category that is too new for us.
+             * allow these to be parsed without reporting an error.
+             * If this is a "capability" (as in GetCapRsp & GetConfigRsp), this is filtered out.
+             * If this is a Configuration (as in SetConfigCmd & ReconfigCmd),
+             *    this will be marked as an error in the caller of this function */
+            if ((sig_id == AVDT_SIG_SETCONFIG) || (sig_id == AVDT_SIG_RECONFIG))
+            {
+                /* Cannot accept unknown category. */
+                err = AVDT_ERR_CATEGORY;
+                break;
+            }
+            else    /* GETCAP or GET_ALLCAP */
+            {
+                /* Skip unknown categories. */
+                p += elem_len;
+                AVDT_TRACE_DEBUG("skipping unknown service category=%d len: %d", elem, elem_len);
+                continue;
+            }
+        }
+
+        if ((elem_len > avdt_msg_ie_len_max[elem]) ||
+            (elem_len < avdt_msg_ie_len_min[elem]))
+        {
+            err = avdt_msg_ie_err[elem];
+            break;
+        }
+
+        /* add element to psc mask, but mask out codec or protect */
+        p_cfg->psc_mask |= (1 << elem);
+        AVDT_TRACE_DEBUG("elem=%d elem_len: %d psc_mask=0x%x", elem, elem_len, p_cfg->psc_mask);
+
+        /* parse individual information elements with additional parameters */
+        switch (elem)
+        {
+            case AVDT_CAT_RECOV:
+                p_cfg->recov_type = *p++;
+                p_cfg->recov_mrws = *p++;
+                p_cfg->recov_mnmp = *p++;
+                if (p_cfg->recov_type != AVDT_RECOV_RFC2733)
+                {
+                    err = AVDT_ERR_RECOV_TYPE;
+                }
+                else if ((p_cfg->recov_mrws < AVDT_RECOV_MRWS_MIN) ||
+                         (p_cfg->recov_mrws > AVDT_RECOV_MRWS_MAX) ||
+                         (p_cfg->recov_mnmp < AVDT_RECOV_MNMP_MIN) ||
+                         (p_cfg->recov_mnmp > AVDT_RECOV_MNMP_MAX))
+                {
+                    err = AVDT_ERR_RECOV_FMT;
+                }
+                break;
+
+            case AVDT_CAT_PROTECT:
+                p_cfg->psc_mask &= ~AVDT_PSC_PROTECT;
+                if ((elem_len + protect_offset) < AVDT_PROTECT_SIZE)
+                {
+                    p_cfg->num_protect++;
+                    p_cfg->protect_info[protect_offset] = elem_len;
+                    protect_offset++;
+                    memcpy(&p_cfg->protect_info[protect_offset], p, elem_len);
+                    protect_offset += elem_len;
+                }
+                p += elem_len;
+                break;
+
+            case AVDT_CAT_HDRCMP:
+                p_cfg->hdrcmp_mask = *p++;
+                break;
+
+#if AVDT_MULTIPLEXING == TRUE
+            case AVDT_CAT_MUX:
+                /* verify length */
+                AVDT_TRACE_WARNING("psc_mask=0x%x elem_len=%d", p_cfg->psc_mask, elem_len);
+                if( ((0 == (p_cfg->psc_mask & (AVDT_PSC_RECOV|AVDT_PSC_REPORT))) && (elem_len != 3))
+                    || (((p_cfg->psc_mask & AVDT_PSC_REPORT) && !(p_cfg->psc_mask & AVDT_PSC_RECOV))
+                    && (elem_len != 5))
+                    || ((!(p_cfg->psc_mask & AVDT_PSC_REPORT) && (p_cfg->psc_mask & AVDT_PSC_RECOV))
+                    && (elem_len != 5))
+                    || (((p_cfg->psc_mask & AVDT_PSC_REPORT) && (p_cfg->psc_mask & AVDT_PSC_RECOV))
+                    && (elem_len != 7)) )
+                {
+                    err = AVDT_ERR_MUX_FMT;
+                    break;
+                }
+
+                /* parse fragmentation */
+                p_cfg->mux_mask = *p++ & (UINT8)AVDT_MUX_FRAG;
+
+                /* parse TSIDs and TCIDs */
+                if(--elem_len)
+                    p_cfg->mux_tsid_media = (*p++)>>3;
+                else
+                    break;
+
+                if(--elem_len)
+                    p_cfg->mux_tcid_media = (*p++)>>3;
+                else
+                    break;
+
+                if(--elem_len)
+                    p_cfg->mux_tsid_report = (*p++)>>3;
+                else
+                    break;
+
+                if(--elem_len)
+                    p_cfg->mux_tcid_report = (*p++)>>3;
+                else
+                    break;
+
+                if(--elem_len)
+                    p_cfg->mux_tsid_recov = (*p++)>>3;
+                else
+                    break;
+
+                if(--elem_len)
+                    p_cfg->mux_tcid_recov = (*p++)>>3;
+                else
+                    break;
+                break;
+#endif
+
+            case AVDT_CAT_CODEC:
+                p_cfg->psc_mask &= ~AVDT_PSC_CODEC;
+                tmp = elem_len;
+                if (elem_len >= AVDT_CODEC_SIZE)
+                {
+                    tmp = AVDT_CODEC_SIZE - 1;
+                }
+                p_cfg->num_codec++;
+                p_cfg->codec_info[0] = elem_len;
+                memcpy(&p_cfg->codec_info[1], p, tmp);
+                p += elem_len;
+                break;
+
+            case AVDT_CAT_DELAY_RPT:
+                break;
+
+            default:
+                p += elem_len;
+                break;
+        } /* switch */
+    } /* while ! err, !end*/
+    *p_elem = elem;
+    AVDT_TRACE_DEBUG("err=0x%x, elem:0x%x psc_mask=0x%x", err, elem, p_cfg->psc_mask);
+
+    return err;
+}
+
+/*******************************************************************************
+**
+** Function         avdt_msg_prs_none
+**
+** Description      This message parsing function parses a message with no parameters.
+
+**
+**
+** Returns          Error code or zero if no error.
+**
+*******************************************************************************/
+static UINT8 avdt_msg_prs_none(tAVDT_MSG *p_msg, UINT8 *p, UINT16 len)
+{
+    UNUSED(p_msg);
+    UNUSED(p);
+    UNUSED(len);
+    return 0;
+}
+
+/*******************************************************************************
+**
+** Function         avdt_msg_prs_single
+**
+** Description      This message parsing function parses a message with a
+**                  single SEID.
+**
+**
+** Returns          Error code or zero if no error.
+**
+*******************************************************************************/
+static UINT8 avdt_msg_prs_single(tAVDT_MSG *p_msg, UINT8 *p, UINT16 len)
+{
+    UINT8       err = 0;
+
+    /* verify len */
+    if (len != AVDT_LEN_SINGLE)
+    {
+        err = AVDT_ERR_LENGTH;
+    }
+    else
+    {
+        AVDT_MSG_PRS_SEID(p, p_msg->single.seid);
+
+        if (avdt_scb_by_hdl(p_msg->single.seid) == NULL)
+        {
+            err = AVDT_ERR_SEID;
+        }
+    }
+    return err;
+}
+
+/*******************************************************************************
+**
+** Function         avdt_msg_prs_setconfig_cmd
+**
+** Description      This message parsing function parses a set configuration
+**                  command message.
+**
+**
+** Returns          Error code or zero if no error.
+**
+*******************************************************************************/
+static UINT8 avdt_msg_prs_setconfig_cmd(tAVDT_MSG *p_msg, UINT8 *p, UINT16 len)
+{
+    UINT8       err = 0;
+
+    p_msg->hdr.err_param = 0;
+
+    /* verify len */
+    if (len < AVDT_LEN_SETCONFIG_MIN)
+    {
+        err = AVDT_ERR_LENGTH;
+    }
+    else
+    {
+        /* get seids */
+        AVDT_MSG_PRS_SEID(p, p_msg->config_cmd.hdr.seid);
+        if (avdt_scb_by_hdl(p_msg->config_cmd.hdr.seid) == NULL)
+        {
+            err = AVDT_ERR_SEID;
+        }
+
+        AVDT_MSG_PRS_SEID(p, p_msg->config_cmd.int_seid);
+        if ((p_msg->config_cmd.int_seid < AVDT_SEID_MIN) ||
+            (p_msg->config_cmd.int_seid > AVDT_SEID_MAX))
+        {
+            err = AVDT_ERR_SEID;
+        }
+    }
+
+    if (!err)
+    {
+        /* parse configuration parameters */
+        len -= 2;
+        err = avdt_msg_prs_cfg(p_msg->config_cmd.p_cfg, p, len, &p_msg->hdr.err_param, AVDT_SIG_SETCONFIG);
+
+        if (!err)
+        {
+            /* verify protocol service capabilities are supported */
+            if (((p_msg->config_cmd.p_cfg->psc_mask & (~AVDT_PSC)) != 0) ||
+                (p_msg->config_cmd.p_cfg->num_codec == 0))
+            {
+                err = AVDT_ERR_INVALID_CAP;
+            }
+        }
+    }
+
+    return err;
+}
+
+/*******************************************************************************
+**
+** Function         avdt_msg_prs_reconfig_cmd
+**
+** Description      This message parsing function parses a reconfiguration
+**                  command message.
+**
+**
+** Returns          Error code or zero if no error.
+**
+*******************************************************************************/
+static UINT8 avdt_msg_prs_reconfig_cmd(tAVDT_MSG *p_msg, UINT8 *p, UINT16 len)
+{
+    UINT8       err = 0;
+
+    p_msg->hdr.err_param = 0;
+
+    /* verify len */
+    if (len < AVDT_LEN_RECONFIG_MIN)
+    {
+        err = AVDT_ERR_LENGTH;
+    }
+    else
+    {
+        /* get seid */
+        AVDT_MSG_PRS_SEID(p, p_msg->reconfig_cmd.hdr.seid);
+        if (avdt_scb_by_hdl(p_msg->reconfig_cmd.hdr.seid) == NULL)
+        {
+            err = AVDT_ERR_SEID;
+        }
+        else
+        {
+            /* parse config parameters */
+            len--;
+            err = avdt_msg_prs_cfg(p_msg->config_cmd.p_cfg, p, len, &p_msg->hdr.err_param, AVDT_SIG_RECONFIG);
+
+            /* verify no protocol service capabilities in parameters */
+            if (!err)
+            {
+                AVDT_TRACE_DEBUG("avdt_msg_prs_reconfig_cmd psc_mask=0x%x/0x%x", p_msg->config_cmd.p_cfg->psc_mask, AVDT_MSG_PSC_MASK);
+                if ((p_msg->config_cmd.p_cfg->psc_mask != 0) ||
+                    (p_msg->config_cmd.p_cfg->num_codec == 0 && p_msg->config_cmd.p_cfg->num_protect == 0))
+                {
+                    err = AVDT_ERR_INVALID_CAP;
+                }
+            }
+        }
+    }
+    return err;
+}
+
+/*******************************************************************************
+**
+** Function         avdt_msg_prs_multi
+**
+** Description      This message parsing function parses a message containing
+**                  multiple SEID's.
+**
+**
+** Returns          Error code or zero if no error.
+**
+*******************************************************************************/
+static UINT8 avdt_msg_prs_multi(tAVDT_MSG *p_msg, UINT8 *p, UINT16 len)
+{
+    int     i;
+    UINT8   err = 0;
+
+    p_msg->hdr.err_param = 0;
+
+    /* verify len */
+    if (len < AVDT_LEN_MULTI_MIN || (len > AVDT_NUM_SEPS))
+    {
+        err = AVDT_ERR_LENGTH;
+    }
+    else
+    {
+        /* get and verify all seps */
+        for (i = 0; i < len; i++)
+        {
+            AVDT_MSG_PRS_SEID(p, p_msg->multi.seid_list[i]);
+            if (avdt_scb_by_hdl(p_msg->multi.seid_list[i]) == NULL)
+            {
+                err = AVDT_ERR_SEID;
+                p_msg->hdr.err_param = p_msg->multi.seid_list[i];
+                break;
+            }
+        }
+        p_msg->multi.num_seps = (UINT8)i;
+    }
+
+    return err;
+}
+
+/*******************************************************************************
+**
+** Function         avdt_msg_prs_security_cmd
+**
+** Description      This message parsing function parses a security
+**                  command message.
+**
+**
+** Returns          Error code or zero if no error.
+**
+*******************************************************************************/
+static UINT8 avdt_msg_prs_security_cmd(tAVDT_MSG *p_msg, UINT8 *p, UINT16 len)
+{
+    UINT8       err = 0;
+
+    /* verify len */
+    if (len < AVDT_LEN_SECURITY_MIN)
+    {
+        err = AVDT_ERR_LENGTH;
+    }
+    else
+    {
+        /* get seid */
+        AVDT_MSG_PRS_SEID(p, p_msg->security_cmd.hdr.seid);
+        if (avdt_scb_by_hdl(p_msg->security_cmd.hdr.seid) == NULL)
+        {
+            err = AVDT_ERR_SEID;
+        }
+        else
+        {
+            p_msg->security_cmd.p_data = p;
+            p_msg->security_cmd.len = len - 1;
+        }
+    }
+    return err;
+}
+
+/*******************************************************************************
+**
+** Function         avdt_msg_prs_discover_rsp
+**
+** Description      This message parsing function parses a discover
+**                  response message.
+**
+**
+** Returns          Error code or zero if no error.
+**
+*******************************************************************************/
+static UINT8 avdt_msg_prs_discover_rsp(tAVDT_MSG *p_msg, UINT8 *p, UINT16 len)
+{
+    int     i;
+    UINT8   err = 0;
+
+    /* determine number of seps; seps in msg is len/2, but set to minimum
+    ** of seps app has supplied memory for and seps in msg
+    */
+    if (p_msg->discover_rsp.num_seps > (len / 2))
+    {
+        p_msg->discover_rsp.num_seps = (len / 2);
+    }
+
+    /* parse out sep info */
+    for (i = 0; i < p_msg->discover_rsp.num_seps; i++)
+    {
+        /* parse discover rsp info */
+        AVDT_MSG_PRS_DISC(p, p_msg->discover_rsp.p_sep_info[i].seid,
+                          p_msg->discover_rsp.p_sep_info[i].in_use,
+                          p_msg->discover_rsp.p_sep_info[i].media_type,
+                          p_msg->discover_rsp.p_sep_info[i].tsep);
+
+        /* verify that seid is valid */
+        if ((p_msg->discover_rsp.p_sep_info[i].seid < AVDT_SEID_MIN) ||
+            (p_msg->discover_rsp.p_sep_info[i].seid > AVDT_SEID_MAX))
+        {
+            err = AVDT_ERR_SEID;
+            break;
+        }
+    }
+
+    return err;
+}
+
+/*******************************************************************************
+**
+** Function         avdt_msg_prs_svccap
+**
+** Description      This message parsing function parses a message containing
+**                  service capabilities parameters.
+**
+**
+** Returns          Error code or zero if no error.
+**
+*******************************************************************************/
+static UINT8 avdt_msg_prs_svccap(tAVDT_MSG *p_msg, UINT8 *p, UINT16 len)
+{
+    /* parse parameters */
+    UINT8   err = avdt_msg_prs_cfg(p_msg->svccap.p_cfg, p, len, &p_msg->hdr.err_param, AVDT_SIG_GETCAP);
+    if (p_msg->svccap.p_cfg)
+    {
+        p_msg->svccap.p_cfg->psc_mask &= AVDT_LEG_PSC;
+    }
+
+    return (err);
+}
+
+/*******************************************************************************
+**
+** Function         avdt_msg_prs_all_svccap
+**
+** Description      This message parsing function parses a message containing
+**                  service capabilities parameters.
+**
+**
+** Returns          Error code or zero if no error.
+**
+*******************************************************************************/
+static UINT8 avdt_msg_prs_all_svccap(tAVDT_MSG *p_msg, UINT8 *p, UINT16 len)
+{
+    UINT8   err = avdt_msg_prs_cfg(p_msg->svccap.p_cfg, p, len, &p_msg->hdr.err_param, AVDT_SIG_GET_ALLCAP);
+    if (p_msg->svccap.p_cfg)
+    {
+        p_msg->svccap.p_cfg->psc_mask &= AVDT_MSG_PSC_MASK;
+    }
+    return (err);
+}
+
+/*******************************************************************************
+**
+** Function         avdt_msg_prs_security_rsp
+**
+** Description      This message parsing function parsing a security
+**                  response message.
+**
+**
+** Returns          Error code or zero if no error.
+**
+*******************************************************************************/
+static UINT8 avdt_msg_prs_security_rsp(tAVDT_MSG *p_msg, UINT8 *p, UINT16 len)
+{
+    p_msg->security_rsp.p_data = p;
+    p_msg->security_rsp.len = len;
+
+    return 0;
+}
+
+/*******************************************************************************
+**
+** Function         avdt_msg_prs_rej
+**
+** Description
+**
+**
+** Returns          Error code or zero if no error.
+**
+*******************************************************************************/
+static UINT8 avdt_msg_prs_rej(tAVDT_MSG *p_msg, UINT8 *p, UINT8 sig)
+{
+    if ((sig == AVDT_SIG_SETCONFIG) || (sig == AVDT_SIG_RECONFIG))
+    {
+        p_msg->hdr.err_param = *p++;
+        p_msg->hdr.err_code = *p;
+    }
+    else if ((sig == AVDT_SIG_START) || (sig == AVDT_SIG_SUSPEND))
+    {
+        AVDT_MSG_PRS_SEID(p, p_msg->hdr.err_param);
+        p_msg->hdr.err_code = *p;
+    }
+    else
+    {
+        p_msg->hdr.err_code = *p;
+    }
+
+    return 0;
+}
+
+/*******************************************************************************
+**
+** Function         avdt_msg_prs_delay_rpt
+**
+** Description      This message parsing function parses a security
+**                  command message.
+**
+**
+** Returns          Error code or zero if no error.
+**
+*******************************************************************************/
+static UINT8 avdt_msg_prs_delay_rpt (tAVDT_MSG *p_msg, UINT8 *p, UINT16 len)
+{
+    UINT8       err = 0;
+
+    /* verify len */
+    if (len != AVDT_LEN_DELAY_RPT)
+    {
+        AVDT_TRACE_WARNING("avdt_msg_prs_delay_rpt expected len: %u  got: %u", AVDT_LEN_DELAY_RPT, len);
+        err = AVDT_ERR_LENGTH;
+    }
+    else
+    {
+        /* get seid */
+        AVDT_MSG_PRS_SEID (p, p_msg->delay_rpt_cmd.hdr.seid);
+
+        if (avdt_scb_by_hdl(p_msg->delay_rpt_cmd.hdr.seid) == NULL)
+        {
+            err = AVDT_ERR_SEID;
+        }
+        else
+        {
+            BE_STREAM_TO_UINT16 (p_msg->delay_rpt_cmd.delay, p);
+            AVDT_TRACE_DEBUG("avdt_msg_prs_delay_rpt delay: %u", p_msg->delay_rpt_cmd.delay);
+        }
+    }
+    return err;
+}
+
+
+/*******************************************************************************
+**
+** Function         avdt_msg_send
+**
+** Description      Send, and if necessary fragment the next message.
+**
+**
+** Returns          Congested state; TRUE if CCB congested, FALSE if not.
+**
+*******************************************************************************/
+BOOLEAN avdt_msg_send(tAVDT_CCB *p_ccb, BT_HDR *p_msg)
+{
+    UINT16          curr_msg_len;
+    UINT8           pkt_type;
+    UINT8           hdr_len;
+    tAVDT_TC_TBL    *p_tbl;
+    BT_HDR          *p_buf;
+    UINT8           *p;
+    UINT8           label;
+    UINT8           msg;
+    UINT8           sig;
+    UINT8           nosp = 0;       /* number of subsequent packets */
+
+    /* look up transport channel table entry to get peer mtu */
+    p_tbl = avdt_ad_tc_tbl_by_type(AVDT_CHAN_SIG, p_ccb, NULL);
+
+    /* set the current message if there is a message passed in */
+    if (p_msg != NULL)
+    {
+        p_ccb->p_curr_msg = p_msg;
+    }
+
+    /* store copy of curr_msg->len */
+    curr_msg_len = p_ccb->p_curr_msg->len;
+
+    /* while not congested and we haven't sent it all */
+    while ((!p_ccb->cong) && (p_ccb->p_curr_msg != NULL))
+    {
+        /* check what kind of message we've got here; we are using the offset
+        ** to indicate that a message is being fragmented
+        */
+
+        /* if message isn't being fragmented and it fits in mtu */
+        if ((p_ccb->p_curr_msg->offset == AVDT_MSG_OFFSET) &&
+            (p_ccb->p_curr_msg->len <= p_tbl->peer_mtu - AVDT_LEN_TYPE_SINGLE))
+        {
+            pkt_type = AVDT_PKT_TYPE_SINGLE;
+            hdr_len = AVDT_LEN_TYPE_SINGLE;
+            p_buf = p_ccb->p_curr_msg;
+        }
+        /* if message isn't being fragmented and it doesn't fit in mtu */
+        else if ((p_ccb->p_curr_msg->offset == AVDT_MSG_OFFSET) &&
+                 (p_ccb->p_curr_msg->len > p_tbl->peer_mtu - AVDT_LEN_TYPE_SINGLE))
+        {
+            pkt_type = AVDT_PKT_TYPE_START;
+            hdr_len = AVDT_LEN_TYPE_START;
+            nosp = (p_ccb->p_curr_msg->len + AVDT_LEN_TYPE_START - p_tbl->peer_mtu) /
+                   (p_tbl->peer_mtu - 1) + 2;
+
+            /* get a new buffer for fragment we are sending */
+            p_buf = (BT_HDR *)osi_malloc(AVDT_CMD_BUF_SIZE);
+
+            /* copy portion of data from current message to new buffer */
+            p_buf->offset = L2CAP_MIN_OFFSET + hdr_len;
+            p_buf->len = p_tbl->peer_mtu - hdr_len;
+            memcpy((UINT8 *)(p_buf + 1) + p_buf->offset,
+                   (UINT8 *)(p_ccb->p_curr_msg + 1) + p_ccb->p_curr_msg->offset, p_buf->len);
+        }
+        /* if message is being fragmented and remaining bytes don't fit in mtu */
+        else if ((p_ccb->p_curr_msg->offset > AVDT_MSG_OFFSET) &&
+                 (p_ccb->p_curr_msg->len > (p_tbl->peer_mtu - AVDT_LEN_TYPE_CONT)))
+        {
+            pkt_type = AVDT_PKT_TYPE_CONT;
+            hdr_len = AVDT_LEN_TYPE_CONT;
+
+            /* get a new buffer for fragment we are sending */
+            p_buf = (BT_HDR *)osi_malloc(AVDT_CMD_BUF_SIZE);
+
+            /* copy portion of data from current message to new buffer */
+            p_buf->offset = L2CAP_MIN_OFFSET + hdr_len;
+            p_buf->len = p_tbl->peer_mtu - hdr_len;
+            memcpy((UINT8 *)(p_buf + 1) + p_buf->offset,
+                   (UINT8 *)(p_ccb->p_curr_msg + 1) + p_ccb->p_curr_msg->offset, p_buf->len);
+        }
+        /* if message is being fragmented and remaining bytes do fit in mtu */
+        else
+        {
+            pkt_type = AVDT_PKT_TYPE_END;
+            hdr_len = AVDT_LEN_TYPE_END;
+            p_buf = p_ccb->p_curr_msg;
+        }
+
+        /* label, sig id, msg type are in hdr of p_curr_msg */
+        label = AVDT_LAYERSPEC_LABEL(p_ccb->p_curr_msg->layer_specific);
+        msg = AVDT_LAYERSPEC_MSG(p_ccb->p_curr_msg->layer_specific);
+        sig = (UINT8) p_ccb->p_curr_msg->event;
+        AVDT_TRACE_DEBUG("avdt_msg_send label:%d, msg:%d, sig:%d", label, msg, sig);
+
+        /* keep track of how much of msg we've sent */
+        curr_msg_len -= p_buf->len;
+        if (curr_msg_len == 0)
+        {
+            /* entire message sent; mark as finished */
+            p_ccb->p_curr_msg = NULL;
+
+            /* start timer here for commands */
+            if (msg == AVDT_MSG_TYPE_CMD)
+            {
+                /* if retransmit timeout set to zero, sig doesn't use retransmit */
+                if ((sig == AVDT_SIG_DISCOVER) || (sig == AVDT_SIG_GETCAP) ||
+                    (sig == AVDT_SIG_SECURITY) || (avdt_cb.rcb.ret_tout == 0))
+                {
+                    alarm_cancel(p_ccb->idle_ccb_timer);
+                    alarm_cancel(p_ccb->ret_ccb_timer);
+                    period_ms_t interval_ms = avdt_cb.rcb.sig_tout * 1000;
+                    alarm_set_on_queue(p_ccb->rsp_ccb_timer, interval_ms,
+                                       avdt_ccb_rsp_ccb_timer_timeout, p_ccb,
+                                       btu_general_alarm_queue);
+                }
+                else if (sig != AVDT_SIG_DELAY_RPT)
+                {
+                    alarm_cancel(p_ccb->idle_ccb_timer);
+                    alarm_cancel(p_ccb->rsp_ccb_timer);
+                    period_ms_t interval_ms = avdt_cb.rcb.ret_tout * 1000;
+                    alarm_set_on_queue(p_ccb->ret_ccb_timer, interval_ms,
+                                       avdt_ccb_ret_ccb_timer_timeout, p_ccb,
+                                       btu_general_alarm_queue);
+                }
+            }
+        }
+        else
+        {
+            /* message being fragmented and not completely sent */
+            p_ccb->p_curr_msg->len -= p_buf->len;
+            p_ccb->p_curr_msg->offset += p_buf->len;
+        }
+
+        /* set up to build header */
+        p_buf->len += hdr_len;
+        p_buf->offset -= hdr_len;
+        p = (UINT8 *)(p_buf + 1) + p_buf->offset;
+
+        /* build header */
+        AVDT_MSG_BLD_HDR(p, label, pkt_type, msg);
+        if (pkt_type == AVDT_PKT_TYPE_START)
+        {
+            AVDT_MSG_BLD_NOSP(p, nosp);
+        }
+        if ((pkt_type == AVDT_PKT_TYPE_START) || (pkt_type == AVDT_PKT_TYPE_SINGLE))
+        {
+            AVDT_MSG_BLD_SIG(p, sig);
+        }
+
+        /* send msg buffer down */
+        avdt_ad_write_req(AVDT_CHAN_SIG, p_ccb, NULL, p_buf);
+    }
+    return (p_ccb->cong);
+}
+
+/*******************************************************************************
+**
+** Function         avdt_msg_asmbl
+**
+** Description      Reassemble incoming message.
+**
+**
+** Returns          Pointer to reassembled message;  NULL if no message
+**                  available.
+**
+*******************************************************************************/
+BT_HDR *avdt_msg_asmbl(tAVDT_CCB *p_ccb, BT_HDR *p_buf)
+{
+    UINT8   *p;
+    UINT8   pkt_type;
+    BT_HDR  *p_ret;
+
+    /* parse the message header */
+    p = (UINT8 *)(p_buf + 1) + p_buf->offset;
+    AVDT_MSG_PRS_PKT_TYPE(p, pkt_type);
+
+    /* quick sanity check on length */
+    if (p_buf->len < avdt_msg_pkt_type_len[pkt_type])
+    {
+        osi_free(p_buf);
+        AVDT_TRACE_WARNING("Bad length during reassembly");
+        p_ret = NULL;
+    }
+    /* single packet */
+    else if (pkt_type == AVDT_PKT_TYPE_SINGLE)
+    {
+        /* if reassembly in progress drop message and process new single */
+        if (p_ccb->p_rx_msg != NULL)
+            AVDT_TRACE_WARNING("Got single during reassembly");
+
+        osi_free_and_reset((void **)&p_ccb->p_rx_msg);
+
+        p_ret = p_buf;
+    }
+    /* start packet */
+    else if (pkt_type == AVDT_PKT_TYPE_START)
+    {
+        /* if reassembly in progress drop message and process new single */
+        if (p_ccb->p_rx_msg != NULL)
+            AVDT_TRACE_WARNING("Got start during reassembly");
+
+        osi_free_and_reset((void **)&p_ccb->p_rx_msg);
+
+        /*
+         * Allocate bigger buffer for reassembly. As lower layers are
+         * not aware of possible packet size after reassembly, they
+         * would have allocated smaller buffer.
+         */
+        p_ccb->p_rx_msg = (BT_HDR *)osi_malloc(BT_DEFAULT_BUFFER_SIZE);
+        memcpy(p_ccb->p_rx_msg, p_buf,
+               sizeof(BT_HDR) + p_buf->offset + p_buf->len);
+
+        /* Free original buffer */
+        osi_free(p_buf);
+
+        /* update p to point to new buffer */
+        p = (UINT8 *)(p_ccb->p_rx_msg + 1) + p_ccb->p_rx_msg->offset;
+
+        /* copy first header byte over nosp */
+        *(p + 1) = *p;
+
+        /* set offset to point to where to copy next */
+        p_ccb->p_rx_msg->offset += p_ccb->p_rx_msg->len;
+
+        /* adjust length for packet header */
+        p_ccb->p_rx_msg->len -= 1;
+
+        p_ret = NULL;
+    }
+    /* continue or end */
+    else
+    {
+        /* if no reassembly in progress drop message */
+        if (p_ccb->p_rx_msg == NULL)
+        {
+            osi_free(p_buf);
+            AVDT_TRACE_WARNING("Pkt type=%d out of order", pkt_type);
+            p_ret = NULL;
+        }
+        else
+        {
+            /* get size of buffer holding assembled message */
+            /*
+             * NOTE: The buffer is allocated above at the beginning of the
+             * reassembly, and is always of size BT_DEFAULT_BUFFER_SIZE.
+             */
+            UINT16 buf_len = BT_DEFAULT_BUFFER_SIZE - sizeof(BT_HDR);
+
+            /* adjust offset and len of fragment for header byte */
+            p_buf->offset += AVDT_LEN_TYPE_CONT;
+            p_buf->len -= AVDT_LEN_TYPE_CONT;
+
+            /* verify length */
+            if ((p_ccb->p_rx_msg->offset + p_buf->len) > buf_len) {
+                /* won't fit; free everything */
+                AVDT_TRACE_WARNING("%s: Fragmented message too big!", __func__);
+                osi_free_and_reset((void **)&p_ccb->p_rx_msg);
+                osi_free(p_buf);
+                p_ret = NULL;
+            } else {
+                /* copy contents of p_buf to p_rx_msg */
+                memcpy((UINT8 *)(p_ccb->p_rx_msg + 1) + p_ccb->p_rx_msg->offset,
+                       (UINT8 *)(p_buf + 1) + p_buf->offset, p_buf->len);
+
+                if (pkt_type == AVDT_PKT_TYPE_END)
+                {
+                    p_ccb->p_rx_msg->offset -= p_ccb->p_rx_msg->len;
+                    p_ccb->p_rx_msg->len += p_buf->len;
+                    p_ret = p_ccb->p_rx_msg;
+                    p_ccb->p_rx_msg = NULL;
+                }
+                else
+                {
+                    p_ccb->p_rx_msg->offset += p_buf->len;
+                    p_ccb->p_rx_msg->len += p_buf->len;
+                    p_ret = NULL;
+                }
+                osi_free(p_buf);
+            }
+        }
+    }
+    return p_ret;
+}
+
+/*******************************************************************************
+**
+** Function         avdt_msg_send_cmd
+**
+** Description      This function is called to send a command message.  The
+**                  sig_id parameter indicates the message type, p_params
+**                  points to the message parameters, if any.  It gets a buffer
+**                  from the AVDTP command pool, executes the message building
+**                  function for this message type.  It then queues the message
+**                  in the command queue for this CCB.
+**
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_msg_send_cmd(tAVDT_CCB *p_ccb, void *p_scb, UINT8 sig_id, tAVDT_MSG *p_params)
+{
+    UINT8 *p;
+    UINT8 *p_start;
+    BT_HDR *p_buf = (BT_HDR *)osi_malloc(AVDT_CMD_BUF_SIZE);
+
+    /* set up buf pointer and offset */
+    p_buf->offset = AVDT_MSG_OFFSET;
+    p_start = p = (UINT8 *)(p_buf + 1) + p_buf->offset;
+
+    /* execute parameter building function to build message */
+    (*avdt_msg_bld_cmd[sig_id - 1])(&p, p_params);
+
+    /* set len */
+    p_buf->len = (UINT16) (p - p_start);
+
+    /* now store scb hdls, if any, in buf */
+    if (p_scb != NULL)
+    {
+        p = (UINT8 *)(p_buf + 1);
+
+        /* for start and suspend, p_scb points to array of handles */
+        if ((sig_id == AVDT_SIG_START) || (sig_id == AVDT_SIG_SUSPEND))
+        {
+            memcpy(p, (UINT8 *) p_scb, p_buf->len);
+        }
+        /* for all others, p_scb points to scb as usual */
+        else
+        {
+            *p = avdt_scb_to_hdl((tAVDT_SCB *) p_scb);
+        }
+    }
+
+    /* stash sig, label, and message type in buf */
+    p_buf->event = sig_id;
+    AVDT_BLD_LAYERSPEC(p_buf->layer_specific, AVDT_MSG_TYPE_CMD, p_ccb->label);
+
+    /* increment label */
+    p_ccb->label = (p_ccb->label + 1) % 16;
+
+    /* queue message and trigger ccb to send it */
+    fixed_queue_enqueue(p_ccb->cmd_q, p_buf);
+    avdt_ccb_event(p_ccb, AVDT_CCB_SENDMSG_EVT, NULL);
+}
+
+
+/*******************************************************************************
+**
+** Function         avdt_msg_send_rsp
+**
+** Description      This function is called to send a response message.  The
+**                  sig_id parameter indicates the message type, p_params
+**                  points to the message parameters, if any.  It gets a buffer
+**                  from the AVDTP command pool, executes the message building
+**                  function for this message type.  It then queues the message
+**                  in the response queue for this CCB.
+**
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_msg_send_rsp(tAVDT_CCB *p_ccb, UINT8 sig_id, tAVDT_MSG *p_params)
+{
+    UINT8 *p;
+    UINT8 *p_start;
+    BT_HDR *p_buf = (BT_HDR *)osi_malloc(AVDT_CMD_BUF_SIZE);
+
+    /* set up buf pointer and offset */
+    p_buf->offset = AVDT_MSG_OFFSET;
+    p_start = p = (UINT8 *)(p_buf + 1) + p_buf->offset;
+
+    /* execute parameter building function to build message */
+    (*avdt_msg_bld_rsp[sig_id - 1])(&p, p_params);
+
+    /* set length */
+    p_buf->len = (UINT16) (p - p_start);
+
+    /* stash sig, label, and message type in buf */
+    p_buf->event = sig_id;
+    AVDT_BLD_LAYERSPEC(p_buf->layer_specific, AVDT_MSG_TYPE_RSP, p_params->hdr.label);
+
+    /* queue message and trigger ccb to send it */
+    fixed_queue_enqueue(p_ccb->rsp_q, p_buf);
+    avdt_ccb_event(p_ccb, AVDT_CCB_SENDMSG_EVT, NULL);
+}
+
+
+/*******************************************************************************
+**
+** Function         avdt_msg_send_rej
+**
+** Description      This function is called to send a reject message.  The
+**                  sig_id parameter indicates the message type.  It gets
+**                  a buffer from the AVDTP command pool and builds the
+**                  message based on the message type and the error code.
+**                  It then queues the message in the response queue for
+**                  this CCB.
+**
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_msg_send_rej(tAVDT_CCB *p_ccb, UINT8 sig_id, tAVDT_MSG *p_params)
+{
+    UINT8 *p;
+    UINT8 *p_start;
+    BT_HDR *p_buf = (BT_HDR *)osi_malloc(AVDT_CMD_BUF_SIZE);
+
+    /* set up buf pointer and offset */
+    p_buf->offset = AVDT_MSG_OFFSET;
+    p_start = p = (UINT8 *)(p_buf + 1) + p_buf->offset;
+
+    /* if sig id included, build into message */
+    if (sig_id != AVDT_SIG_NONE)
+    {
+        /* if this sig has a parameter, add the parameter */
+        if ((sig_id == AVDT_SIG_SETCONFIG) ||
+            (sig_id == AVDT_SIG_RECONFIG))
+        {
+            AVDT_MSG_BLD_PARAM(p, p_params->hdr.err_param);
+        }
+        else if ((sig_id == AVDT_SIG_START) ||
+                 (sig_id == AVDT_SIG_SUSPEND))
+        {
+            AVDT_MSG_BLD_SEID(p, p_params->hdr.err_param);
+        }
+
+        /* add the error code */
+        AVDT_MSG_BLD_ERR(p, p_params->hdr.err_code);
+    }
+    AVDT_TRACE_DEBUG("avdt_msg_send_rej");
+
+    /* calculate length */
+    p_buf->len = (UINT16) (p - p_start);
+
+    /* stash sig, label, and message type in buf */
+    p_buf->event = sig_id;
+    AVDT_BLD_LAYERSPEC(p_buf->layer_specific, AVDT_MSG_TYPE_REJ, p_params->hdr.label);
+
+    /* queue message and trigger ccb to send it */
+    fixed_queue_enqueue(p_ccb->rsp_q, p_buf);
+    avdt_ccb_event(p_ccb, AVDT_CCB_SENDMSG_EVT, NULL);
+}
+
+/*******************************************************************************
+**
+** Function         avdt_msg_send_grej
+**
+** Description      This function is called to send a general reject message.  The
+**                  sig_id parameter indicates the message type.  It gets
+**                  a buffer from the AVDTP command pool and builds the
+**                  message based on the message type and the error code.
+**                  It then queues the message in the response queue for
+**                  this CCB.
+**
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_msg_send_grej(tAVDT_CCB *p_ccb, UINT8 sig_id, tAVDT_MSG *p_params)
+{
+    UINT8 *p;
+    UINT8 *p_start;
+    BT_HDR *p_buf = (BT_HDR *)osi_malloc(AVDT_CMD_BUF_SIZE);
+
+    /* set up buf pointer and offset */
+    p_buf->offset = AVDT_MSG_OFFSET;
+    p_start = p = (UINT8 *)(p_buf + 1) + p_buf->offset;
+
+    /* calculate length */
+    p_buf->len = (UINT16) (p - p_start);
+
+    /* stash sig, label, and message type in buf */
+    p_buf->event = sig_id;
+    AVDT_BLD_LAYERSPEC(p_buf->layer_specific, AVDT_MSG_TYPE_GRJ, p_params->hdr.label);
+    AVDT_TRACE_DEBUG(__func__);
+
+    /* queue message and trigger ccb to send it */
+    fixed_queue_enqueue(p_ccb->rsp_q, p_buf);
+    avdt_ccb_event(p_ccb, AVDT_CCB_SENDMSG_EVT, NULL);
+}
+
+/*******************************************************************************
+**
+** Function         avdt_msg_ind
+**
+** Description      This function is called by the adaption layer when an
+**                  incoming message is received on the signaling channel.
+**                  It parses the message and sends an event to the appropriate
+**                  SCB or CCB for the message.
+**
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_msg_ind(tAVDT_CCB *p_ccb, BT_HDR *p_buf)
+{
+    tAVDT_SCB   *p_scb;
+    UINT8       *p;
+    BOOLEAN     ok = TRUE;
+    BOOLEAN     handle_rsp = FALSE;
+    BOOLEAN     gen_rej = FALSE;
+    UINT8       label;
+    UINT8       pkt_type;
+    UINT8       msg_type;
+    UINT8       sig = 0;
+    tAVDT_MSG   msg;
+    tAVDT_CFG   cfg;
+    UINT8       err;
+    UINT8       evt = 0;
+    UINT8       scb_hdl;
+
+    /* reassemble message; if no message available (we received a fragment) return */
+    if ((p_buf = avdt_msg_asmbl(p_ccb, p_buf)) == NULL)
+    {
+        return;
+    }
+
+    p = (UINT8 *)(p_buf + 1) + p_buf->offset;
+
+    /* parse the message header */
+    AVDT_MSG_PRS_HDR(p, label, pkt_type, msg_type);
+
+    UNUSED(pkt_type);
+
+    AVDT_TRACE_DEBUG("msg_type=%d, sig=%d", msg_type, sig);
+    /* set up label and ccb_idx in message hdr */
+    msg.hdr.label = label;
+    msg.hdr.ccb_idx = avdt_ccb_to_idx(p_ccb);
+
+    /* verify msg type */
+    if (msg_type == AVDT_MSG_TYPE_GRJ)
+    {
+        AVDT_TRACE_WARNING("Dropping msg msg_type=%d", msg_type);
+        ok = FALSE;
+    }
+    /* check for general reject */
+    else if ((msg_type == AVDT_MSG_TYPE_REJ) && (p_buf->len == AVDT_LEN_GEN_REJ))
+    {
+        gen_rej = TRUE;
+        if (p_ccb->p_curr_cmd != NULL)
+        {
+            msg.hdr.sig_id = sig = (UINT8) p_ccb->p_curr_cmd->event;
+            evt = avdt_msg_rej_2_evt[sig - 1];
+            msg.hdr.err_code = AVDT_ERR_NSC;
+            msg.hdr.err_param = 0;
+        }
+    }
+    else /* not a general reject */
+    {
+        /* get and verify signal */
+        AVDT_MSG_PRS_SIG(p, sig);
+        msg.hdr.sig_id = sig;
+        if ((sig == 0) || (sig > AVDT_SIG_MAX))
+        {
+            AVDT_TRACE_WARNING("Dropping msg sig=%d msg_type:%d", sig, msg_type);
+            ok = FALSE;
+
+            /* send a general reject */
+            if (msg_type == AVDT_MSG_TYPE_CMD)
+            {
+                avdt_msg_send_grej(p_ccb, sig, &msg);
+            }
+        }
+    }
+
+    if (ok && !gen_rej)
+    {
+        /* skip over header (msg length already verified during reassembly) */
+        p_buf->len -= AVDT_LEN_TYPE_SINGLE;
+
+        /* set up to parse message */
+        if ((msg_type == AVDT_MSG_TYPE_RSP) && (sig == AVDT_SIG_DISCOVER))
+        {
+            /* parse discover rsp message to struct supplied by app */
+            msg.discover_rsp.p_sep_info = (tAVDT_SEP_INFO *) p_ccb->p_proc_data;
+            msg.discover_rsp.num_seps = p_ccb->proc_param;
+        }
+        else if ((msg_type == AVDT_MSG_TYPE_RSP) &&
+            ((sig == AVDT_SIG_GETCAP) || (sig == AVDT_SIG_GET_ALLCAP)))
+        {
+            /* parse discover rsp message to struct supplied by app */
+            msg.svccap.p_cfg = (tAVDT_CFG *) p_ccb->p_proc_data;
+        }
+        else if ((msg_type == AVDT_MSG_TYPE_RSP) && (sig == AVDT_SIG_GETCONFIG))
+        {
+            /* parse get config rsp message to struct allocated locally */
+            msg.svccap.p_cfg = &cfg;
+        }
+        else if ((msg_type == AVDT_MSG_TYPE_CMD) && (sig == AVDT_SIG_SETCONFIG))
+        {
+            /* parse config cmd message to struct allocated locally */
+            msg.config_cmd.p_cfg = &cfg;
+        }
+        else if ((msg_type == AVDT_MSG_TYPE_CMD) && (sig == AVDT_SIG_RECONFIG))
+        {
+            /* parse reconfig cmd message to struct allocated locally */
+            msg.reconfig_cmd.p_cfg = &cfg;
+        }
+
+        /* parse message; while we're at it map message sig to event */
+        if (msg_type == AVDT_MSG_TYPE_CMD)
+        {
+            msg.hdr.err_code = err = (*avdt_msg_prs_cmd[sig - 1])(&msg, p, p_buf->len);
+            evt = avdt_msg_cmd_2_evt[sig - 1];
+        }
+        else if (msg_type == AVDT_MSG_TYPE_RSP)
+        {
+            msg.hdr.err_code = err = (*avdt_msg_prs_rsp[sig - 1])(&msg, p, p_buf->len);
+            evt = avdt_msg_rsp_2_evt[sig - 1];
+        }
+        else /* msg_type == AVDT_MSG_TYPE_REJ */
+        {
+            err = avdt_msg_prs_rej(&msg, p, sig);
+            evt = avdt_msg_rej_2_evt[sig - 1];
+        }
+
+        /* if parsing failed */
+        if (err != 0)
+        {
+            AVDT_TRACE_WARNING("Parsing failed sig=%d err=0x%x", sig, err);
+
+            /* if its a rsp or rej, drop it; if its a cmd, send a rej;
+            ** note special case for abort; never send abort reject
+            */
+            ok = FALSE;
+            if ((msg_type == AVDT_MSG_TYPE_CMD) && (sig != AVDT_SIG_ABORT))
+            {
+                avdt_msg_send_rej(p_ccb, sig, &msg);
+            }
+        }
+    }
+
+    /* if its a rsp or rej, check sent cmd to see if we're waiting for
+    ** the rsp or rej.  If we didn't send a cmd for it, drop it.  If
+    ** it does match a cmd, stop timer for the cmd.
+    */
+    if (ok)
+    {
+        if ((msg_type == AVDT_MSG_TYPE_RSP) || (msg_type == AVDT_MSG_TYPE_REJ))
+        {
+            if ((p_ccb->p_curr_cmd != NULL) &&
+                (p_ccb->p_curr_cmd->event == sig) &&
+                (AVDT_LAYERSPEC_LABEL(p_ccb->p_curr_cmd->layer_specific) == label))
+            {
+                /* stop timer */
+                alarm_cancel(p_ccb->idle_ccb_timer);
+                alarm_cancel(p_ccb->ret_ccb_timer);
+                alarm_cancel(p_ccb->rsp_ccb_timer);
+
+                /* clear retransmission count */
+                p_ccb->ret_count = 0;
+
+                /* later in this function handle ccb event */
+                handle_rsp = TRUE;
+            }
+            else
+            {
+                ok = FALSE;
+                AVDT_TRACE_WARNING("Cmd not found for rsp sig=%d label=%d", sig, label);
+            }
+        }
+    }
+
+    if (ok)
+    {
+        /* if it's a ccb event send to ccb */
+        if (evt & AVDT_CCB_MKR)
+        {
+            avdt_ccb_event(p_ccb, (UINT8)(evt & ~AVDT_CCB_MKR), (tAVDT_CCB_EVT *) &msg);
+        }
+        /* if it's a scb event */
+        else
+        {
+            /* Scb events always have a single seid.  For cmd, get seid from
+            ** message.  For rej and rsp, get seid from p_curr_cmd.
+            */
+            if (msg_type == AVDT_MSG_TYPE_CMD)
+            {
+                scb_hdl = msg.single.seid;
+            }
+            else
+            {
+                scb_hdl = *((UINT8 *)(p_ccb->p_curr_cmd + 1));
+            }
+
+            /* Map seid to the scb and send it the event.  For cmd, seid has
+            ** already been verified by parsing function.
+            */
+            if (evt && (p_scb = avdt_scb_by_hdl(scb_hdl)) != NULL)
+            {
+                avdt_scb_event(p_scb, evt, (tAVDT_SCB_EVT *) &msg);
+            }
+        }
+    }
+
+    /* free message buffer */
+    osi_free(p_buf);
+
+    /* if its a rsp or rej, send event to ccb to free associated
+    ** cmd msg buffer and handle cmd queue
+    */
+    if (handle_rsp)
+    {
+        avdt_ccb_event(p_ccb, AVDT_CCB_RCVRSP_EVT, NULL);
+    }
+}
diff --git a/rtkbt/code/bt/stack/avdt/avdt_scb.c b/rtkbt/code/bt/stack/avdt/avdt_scb.c
new file mode 100755
index 0000000..e4e7340
--- /dev/null
+++ b/rtkbt/code/bt/stack/avdt/avdt_scb.c
@@ -0,0 +1,790 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2002-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This module contains the stream control block and functions which
+ *  operate on the stream control block.
+ *
+ ******************************************************************************/
+
+#include <string.h>
+#include "bt_types.h"
+#include "bt_target.h"
+#include "bt_utils.h"
+#include "avdt_api.h"
+#include "avdtc_api.h"
+#include "avdt_int.h"
+#include "bt_common.h"
+#include "btu.h"
+
+/*****************************************************************************
+** state machine constants and types
+*****************************************************************************/
+#if AVDT_DEBUG == TRUE
+
+/* verbose state strings for trace */
+const char * const avdt_scb_st_str[] = {
+    "SCB_IDLE_ST",
+    "SCB_CONF_ST",
+    "SCB_OPENING_ST",
+    "SCB_OPEN_ST",
+    "SCB_STREAM_ST",
+    "SCB_CLOSING_ST"
+};
+
+/* verbose event strings for trace */
+const char * const avdt_scb_evt_str[] = {
+    "API_REMOVE_EVT",
+    "API_WRITE_REQ_EVT",
+    "API_GETCONFIG_REQ_EVT",
+    "API_DELAY_RPT_REQ",
+    "API_SETCONFIG_REQ_EVT",
+    "API_OPEN_REQ_EVT",
+    "API_CLOSE_REQ_EVT",
+    "API_RECONFIG_REQ_EVT",
+    "API_SECURITY_REQ_EVT",
+    "API_ABORT_REQ_EVT",
+    "API_GETCONFIG_RSP_EVT",
+    "API_SETCONFIG_RSP_EVT",
+    "API_SETCONFIG_REJ_EVT",
+    "API_OPEN_RSP_EVT",
+    "API_CLOSE_RSP_EVT",
+    "API_RECONFIG_RSP_EVT",
+    "API_SECURITY_RSP_EVT",
+    "API_ABORT_RSP_EVT",
+    "MSG_SETCONFIG_CMD_EVT",
+    "MSG_GETCONFIG_CMD_EVT",
+    "MSG_OPEN_CMD_EVT",
+    "MSG_START_CMD_EVT",
+    "MSG_SUSPEND_CMD_EVT",
+    "MSG_CLOSE_CMD_EVT",
+    "MSG_ABORT_CMD_EVT",
+    "MSG_RECONFIG_CMD_EVT",
+    "MSG_SECURITY_CMD_EVT",
+    "MSG_DELAY_RPT_CMD_EVT",
+    "MSG_DELAY_RPT_RSP_EVT",
+    "MSG_SETCONFIG_RSP_EVT",
+    "MSG_GETCONFIG_RSP_EVT",
+    "MSG_OPEN_RSP_EVT",
+    "MSG_START_RSP_EVT",
+    "MSG_SUSPEND_RSP_EVT",
+    "MSG_CLOSE_RSP_EVT",
+    "MSG_ABORT_RSP_EVT",
+    "MSG_RECONFIG_RSP_EVT",
+    "MSG_SECURITY_RSP_EVT",
+    "MSG_SETCONFIG_REJ_EVT",
+    "MSG_OPEN_REJ_EVT",
+    "MSG_START_REJ_EVT",
+    "MSG_SUSPEND_REJ_EVT",
+    "TC_TOUT_EVT",
+    "TC_OPEN_EVT",
+    "TC_CLOSE_EVT",
+    "TC_CONG_EVT",
+    "TC_DATA_EVT",
+    "CC_CLOSE_EVT"
+};
+
+#endif
+
+
+/* action function list */
+const tAVDT_SCB_ACTION avdt_scb_action[] = {
+    avdt_scb_hdl_abort_cmd,
+    avdt_scb_hdl_abort_rsp,
+    avdt_scb_hdl_close_cmd,
+    avdt_scb_hdl_close_rsp,
+    avdt_scb_hdl_getconfig_cmd,
+    avdt_scb_hdl_getconfig_rsp,
+    avdt_scb_hdl_open_cmd,
+    avdt_scb_hdl_open_rej,
+    avdt_scb_hdl_open_rsp,
+    avdt_scb_hdl_pkt,
+    avdt_scb_drop_pkt,
+    avdt_scb_hdl_reconfig_cmd,
+    avdt_scb_hdl_reconfig_rsp,
+    avdt_scb_hdl_security_cmd,
+    avdt_scb_hdl_security_rsp,
+    avdt_scb_hdl_setconfig_cmd,
+    avdt_scb_hdl_setconfig_rej,
+    avdt_scb_hdl_setconfig_rsp,
+    avdt_scb_hdl_start_cmd,
+    avdt_scb_hdl_start_rsp,
+    avdt_scb_hdl_suspend_cmd,
+    avdt_scb_hdl_suspend_rsp,
+    avdt_scb_hdl_tc_close,
+#if AVDT_REPORTING == TRUE
+    avdt_scb_hdl_tc_close_sto,
+#endif
+    avdt_scb_hdl_tc_open,
+#if AVDT_REPORTING == TRUE
+    avdt_scb_hdl_tc_open_sto,
+#endif
+    avdt_scb_snd_delay_rpt_req,
+    avdt_scb_hdl_delay_rpt_cmd,
+    avdt_scb_hdl_delay_rpt_rsp,
+    avdt_scb_hdl_write_req,
+    avdt_scb_snd_abort_req,
+    avdt_scb_snd_abort_rsp,
+    avdt_scb_snd_close_req,
+    avdt_scb_snd_stream_close,
+    avdt_scb_snd_close_rsp,
+    avdt_scb_snd_getconfig_req,
+    avdt_scb_snd_getconfig_rsp,
+    avdt_scb_snd_open_req,
+    avdt_scb_snd_open_rsp,
+    avdt_scb_snd_reconfig_req,
+    avdt_scb_snd_reconfig_rsp,
+    avdt_scb_snd_security_req,
+    avdt_scb_snd_security_rsp,
+    avdt_scb_snd_setconfig_req,
+    avdt_scb_snd_setconfig_rej,
+    avdt_scb_snd_setconfig_rsp,
+    avdt_scb_snd_tc_close,
+    avdt_scb_cb_err,
+    avdt_scb_cong_state,
+    avdt_scb_rej_state,
+    avdt_scb_rej_in_use,
+    avdt_scb_rej_not_in_use,
+    avdt_scb_set_remove,
+    avdt_scb_free_pkt,
+    avdt_scb_clr_pkt,
+    avdt_scb_chk_snd_pkt,
+    avdt_scb_transport_channel_timer,
+    avdt_scb_clr_vars,
+    avdt_scb_dealloc
+};
+
+/* state table information */
+#define AVDT_SCB_ACTIONS            2       /* number of actions */
+#define AVDT_SCB_NEXT_STATE         2       /* position of next state */
+#define AVDT_SCB_NUM_COLS           3       /* number of columns in state tables */
+
+/* state table for idle state */
+const UINT8 avdt_scb_st_idle[][AVDT_SCB_NUM_COLS] = {
+/* Event                     Action 1                       Action 2                    Next state */
+/* API_REMOVE_EVT */        {AVDT_SCB_DEALLOC,              AVDT_SCB_IGNORE,            AVDT_SCB_IDLE_ST},
+/* API_WRITE_REQ_EVT */     {AVDT_SCB_FREE_PKT,             AVDT_SCB_IGNORE,            AVDT_SCB_IDLE_ST},
+/* API_GETCONFIG_REQ_EVT */ {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_IDLE_ST},
+/* API_DELAY_RPT_REQ_EVT */ {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_IDLE_ST},
+/* API_SETCONFIG_REQ_EVT */ {AVDT_SCB_SND_SETCONFIG_REQ,    AVDT_SCB_IGNORE,            AVDT_SCB_IDLE_ST},
+/* API_OPEN_REQ_EVT */      {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_IDLE_ST},
+/* API_CLOSE_REQ_EVT */     {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_IDLE_ST},
+/* API_RECONFIG_REQ_EVT */  {AVDT_SCB_CB_ERR,               AVDT_SCB_IGNORE,            AVDT_SCB_IDLE_ST},
+/* API_SECURITY_REQ_EVT */  {AVDT_SCB_CB_ERR,               AVDT_SCB_IGNORE,            AVDT_SCB_IDLE_ST},
+/* API_ABORT_REQ_EVT */     {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_IDLE_ST},
+/* API_GETCONFIG_RSP_EVT */ {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_IDLE_ST},
+/* API_SETCONFIG_RSP_EVT */ {AVDT_SCB_SND_SETCONFIG_RSP,    AVDT_SCB_IGNORE,            AVDT_SCB_CONF_ST},
+/* API_SETCONFIG_REJ_EVT */ {AVDT_SCB_SND_SETCONFIG_REJ,    AVDT_SCB_IGNORE,            AVDT_SCB_IDLE_ST},
+/* API_OPEN_RSP_EVT */      {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_IDLE_ST},
+/* API_CLOSE_RSP_EVT */     {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_IDLE_ST},
+/* API_RECONFIG_RSP_EVT */  {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_IDLE_ST},
+/* API_SECURITY_RSP_EVT */  {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_IDLE_ST},
+/* API_ABORT_RSP_EVT */     {AVDT_SCB_SND_ABORT_RSP,        AVDT_SCB_IGNORE,            AVDT_SCB_IDLE_ST},
+/* MSG_SETCONFIG_CMD_EVT */ {AVDT_SCB_HDL_SETCONFIG_CMD,    AVDT_SCB_IGNORE,            AVDT_SCB_IDLE_ST},
+/* MSG_GETCONFIG_CMD_EVT */ {AVDT_SCB_REJ_STATE,            AVDT_SCB_IGNORE,            AVDT_SCB_IDLE_ST},
+/* MSG_OPEN_CMD_EVT */      {AVDT_SCB_REJ_STATE,            AVDT_SCB_IGNORE,            AVDT_SCB_IDLE_ST},
+/* MSG_START_CMD_EVT */     {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_IDLE_ST},
+/* MSG_SUSPEND_CMD_EVT */   {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_IDLE_ST},
+/* MSG_CLOSE_CMD_EVT */     {AVDT_SCB_REJ_STATE,            AVDT_SCB_IGNORE,            AVDT_SCB_IDLE_ST},
+/* MSG_ABORT_CMD_EVT */     {AVDT_SCB_HDL_ABORT_CMD,        AVDT_SCB_IGNORE,            AVDT_SCB_IDLE_ST},
+/* MSG_RECONFIG_CMD_EVT */  {AVDT_SCB_REJ_NOT_IN_USE,       AVDT_SCB_IGNORE,            AVDT_SCB_IDLE_ST},
+/* MSG_SECURITY_CMD_EVT */  {AVDT_SCB_REJ_STATE,            AVDT_SCB_IGNORE,            AVDT_SCB_IDLE_ST},
+/* MSG_DELAY_RPT_CMD_EVT */ {AVDT_SCB_REJ_STATE,            AVDT_SCB_IGNORE,            AVDT_SCB_IDLE_ST},
+/* MSG_DELAY_RPT_RSP_EVT */ {AVDT_SCB_HDL_DELAY_RPT_RSP,    AVDT_SCB_IGNORE,            AVDT_SCB_IDLE_ST},
+/* MSG_SETCONFIG_RSP_EVT */ {AVDT_SCB_HDL_SETCONFIG_RSP,    AVDT_SCB_IGNORE,            AVDT_SCB_CONF_ST},
+/* MSG_GETCONFIG_RSP_EVT */ {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_IDLE_ST},
+/* MSG_OPEN_RSP_EVT */      {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_IDLE_ST},
+/* MSG_START_RSP_EVT */     {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_IDLE_ST},
+/* MSG_SUSPEND_RSP_EVT */   {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_IDLE_ST},
+/* MSG_CLOSE_RSP_EVT */     {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_IDLE_ST},
+/* MSG_ABORT_RSP_EVT */     {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_IDLE_ST},
+/* MSG_RECONFIG_RSP_EVT */  {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_IDLE_ST},
+/* MSG_SECURITY_RSP_EVT */  {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_IDLE_ST},
+/* MSG_SETCONFIG_REJ_EVT */ {AVDT_SCB_HDL_SETCONFIG_REJ,    AVDT_SCB_IGNORE,            AVDT_SCB_IDLE_ST},
+/* MSG_OPEN_REJ_EVT */      {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_IDLE_ST},
+/* MSG_START_REJ_EVT */     {AVDT_SCB_HDL_START_RSP,        AVDT_SCB_IGNORE,            AVDT_SCB_IDLE_ST},
+/* MSG_SUSPEND_REJ_EVT */   {AVDT_SCB_HDL_SUSPEND_RSP,      AVDT_SCB_IGNORE,            AVDT_SCB_IDLE_ST},
+/* TC_TOUT_EVT */           {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_IDLE_ST},
+/* TC_OPEN_EVT */           {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_IDLE_ST},
+/* TC_CLOSE_EVT */          {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_IDLE_ST},
+/* TC_CONG_EVT */           {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_IDLE_ST},
+/* TC_DATA_EVT */           {AVDT_SCB_DROP_PKT,             AVDT_SCB_IGNORE,            AVDT_SCB_IDLE_ST},
+/* CC_CLOSE_EVT */          {AVDT_SCB_CLR_VARS,             AVDT_SCB_IGNORE,            AVDT_SCB_IDLE_ST}
+};
+
+/* state table for configured state */
+const UINT8 avdt_scb_st_conf[][AVDT_SCB_NUM_COLS] = {
+/* Event                     Action 1                       Action 2                    Next state */
+/* API_REMOVE_EVT */        {AVDT_SCB_SND_ABORT_REQ,        AVDT_SCB_SET_REMOVE,        AVDT_SCB_CONF_ST},
+/* API_WRITE_REQ_EVT */     {AVDT_SCB_FREE_PKT,             AVDT_SCB_IGNORE,            AVDT_SCB_CONF_ST},
+/* API_GETCONFIG_REQ_EVT */ {AVDT_SCB_SND_GETCONFIG_REQ,    AVDT_SCB_IGNORE,            AVDT_SCB_CONF_ST},
+/* API_DELAY_RPT_REQ_EVT */ {AVDT_SCB_SND_DELAY_RPT_REQ,    AVDT_SCB_IGNORE,            AVDT_SCB_CONF_ST},
+/* API_SETCONFIG_REQ_EVT */ {AVDT_SCB_CB_ERR,               AVDT_SCB_IGNORE,            AVDT_SCB_CONF_ST},
+/* API_OPEN_REQ_EVT */      {AVDT_SCB_SND_OPEN_REQ,         AVDT_SCB_IGNORE,            AVDT_SCB_CONF_ST},
+/* API_CLOSE_REQ_EVT */     {AVDT_SCB_SND_ABORT_REQ,        AVDT_SCB_IGNORE,            AVDT_SCB_CONF_ST},
+/* API_RECONFIG_REQ_EVT */  {AVDT_SCB_CB_ERR,               AVDT_SCB_IGNORE,            AVDT_SCB_CONF_ST},
+/* API_SECURITY_REQ_EVT */  {AVDT_SCB_SND_SECURITY_REQ,     AVDT_SCB_IGNORE,            AVDT_SCB_CONF_ST},
+/* API_ABORT_REQ_EVT */     {AVDT_SCB_SND_ABORT_REQ,        AVDT_SCB_IGNORE,            AVDT_SCB_CONF_ST},
+/* API_GETCONFIG_RSP_EVT */ {AVDT_SCB_SND_GETCONFIG_RSP,    AVDT_SCB_IGNORE,            AVDT_SCB_CONF_ST},
+/* API_SETCONFIG_RSP_EVT */ {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_CONF_ST},
+/* API_SETCONFIG_REJ_EVT */ {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_CONF_ST},
+/* API_OPEN_RSP_EVT */      {AVDT_SCB_SND_OPEN_RSP,         AVDT_SCB_IGNORE,            AVDT_SCB_OPENING_ST},
+/* API_CLOSE_RSP_EVT */     {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_CONF_ST},
+/* API_RECONFIG_RSP_EVT */  {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_CONF_ST},
+/* API_SECURITY_RSP_EVT */  {AVDT_SCB_SND_SECURITY_RSP,     AVDT_SCB_IGNORE,            AVDT_SCB_CONF_ST},
+/* API_ABORT_RSP_EVT */     {AVDT_SCB_SND_ABORT_RSP,        AVDT_SCB_HDL_TC_CLOSE,      AVDT_SCB_IDLE_ST},
+/* MSG_SETCONFIG_CMD_EVT */ {AVDT_SCB_REJ_IN_USE,           AVDT_SCB_IGNORE,            AVDT_SCB_CONF_ST},
+/* MSG_GETCONFIG_CMD_EVT */ {AVDT_SCB_HDL_GETCONFIG_CMD,    AVDT_SCB_IGNORE,            AVDT_SCB_CONF_ST},
+/* MSG_OPEN_CMD_EVT */      {AVDT_SCB_HDL_OPEN_CMD,         AVDT_SCB_IGNORE,            AVDT_SCB_CONF_ST},
+/* MSG_START_CMD_EVT */     {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_CONF_ST},
+/* MSG_SUSPEND_CMD_EVT */   {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_CONF_ST},
+/* MSG_CLOSE_CMD_EVT */     {AVDT_SCB_REJ_STATE,            AVDT_SCB_IGNORE,            AVDT_SCB_CONF_ST},
+/* MSG_ABORT_CMD_EVT */     {AVDT_SCB_HDL_ABORT_CMD,        AVDT_SCB_IGNORE,            AVDT_SCB_CONF_ST},
+/* MSG_RECONFIG_CMD_EVT */  {AVDT_SCB_REJ_STATE,            AVDT_SCB_IGNORE,            AVDT_SCB_CONF_ST},
+/* MSG_SECURITY_CMD_EVT */  {AVDT_SCB_HDL_SECURITY_CMD,     AVDT_SCB_IGNORE,            AVDT_SCB_CONF_ST},
+/* MSG_DELAY_RPT_CMD_EVT */ {AVDT_SCB_HDL_DELAY_RPT_CMD,    AVDT_SCB_IGNORE,            AVDT_SCB_CONF_ST},
+/* MSG_DELAY_RPT_RSP_EVT */ {AVDT_SCB_HDL_DELAY_RPT_RSP,    AVDT_SCB_IGNORE,            AVDT_SCB_CONF_ST},
+/* MSG_SETCONFIG_RSP_EVT */ {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_CONF_ST},
+/* MSG_GETCONFIG_RSP_EVT */ {AVDT_SCB_HDL_GETCONFIG_RSP,    AVDT_SCB_IGNORE,            AVDT_SCB_CONF_ST},
+/* MSG_OPEN_RSP_EVT */      {AVDT_SCB_HDL_OPEN_RSP,         AVDT_SCB_IGNORE,            AVDT_SCB_OPENING_ST},
+/* MSG_START_RSP_EVT */     {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_CONF_ST},
+/* MSG_SUSPEND_RSP_EVT */   {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_CONF_ST},
+/* MSG_CLOSE_RSP_EVT */     {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_CONF_ST},
+/* MSG_ABORT_RSP_EVT */     {AVDT_SCB_HDL_ABORT_RSP,        AVDT_SCB_HDL_TC_CLOSE,      AVDT_SCB_IDLE_ST},
+/* MSG_RECONFIG_RSP_EVT */  {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_CONF_ST},
+/* MSG_SECURITY_RSP_EVT */  {AVDT_SCB_HDL_SECURITY_RSP,     AVDT_SCB_IGNORE,            AVDT_SCB_CONF_ST},
+/* MSG_SETCONFIG_REJ_EVT */ {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_CONF_ST},
+/* MSG_OPEN_REJ_EVT */      {AVDT_SCB_HDL_OPEN_REJ,         AVDT_SCB_IGNORE,            AVDT_SCB_IDLE_ST},
+/* MSG_START_REJ_EVT */     {AVDT_SCB_HDL_START_RSP,        AVDT_SCB_IGNORE,            AVDT_SCB_CONF_ST},
+/* MSG_SUSPEND_REJ_EVT */   {AVDT_SCB_HDL_SUSPEND_RSP,      AVDT_SCB_IGNORE,            AVDT_SCB_CONF_ST},
+/* TC_TOUT_EVT */           {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_CONF_ST},
+/* TC_OPEN_EVT */           {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_CONF_ST},
+/* TC_CLOSE_EVT */          {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_CONF_ST},
+/* TC_CONG_EVT */           {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_CONF_ST},
+/* TC_DATA_EVT */           {AVDT_SCB_DROP_PKT,             AVDT_SCB_IGNORE,            AVDT_SCB_CONF_ST},
+/* CC_CLOSE_EVT */          {AVDT_SCB_HDL_TC_CLOSE,         AVDT_SCB_IGNORE,            AVDT_SCB_IDLE_ST}
+};
+
+/* state table for opening state */
+const UINT8 avdt_scb_st_opening[][AVDT_SCB_NUM_COLS] = {
+/* Event                     Action 1                       Action 2                    Next state */
+/* API_REMOVE_EVT */        {AVDT_SCB_SND_CLOSE_REQ,        AVDT_SCB_SET_REMOVE,        AVDT_SCB_CLOSING_ST},
+/* API_WRITE_REQ_EVT */     {AVDT_SCB_FREE_PKT,             AVDT_SCB_IGNORE,            AVDT_SCB_OPENING_ST},
+/* API_GETCONFIG_REQ_EVT */ {AVDT_SCB_SND_GETCONFIG_REQ,    AVDT_SCB_IGNORE,            AVDT_SCB_OPENING_ST},
+/* API_DELAY_RPT_REQ_EVT */ {AVDT_SCB_SND_DELAY_RPT_REQ,    AVDT_SCB_IGNORE,            AVDT_SCB_OPENING_ST},
+/* API_SETCONFIG_REQ_EVT */ {AVDT_SCB_CB_ERR,               AVDT_SCB_IGNORE,            AVDT_SCB_OPENING_ST},
+/* API_OPEN_REQ_EVT */      {AVDT_SCB_CB_ERR,               AVDT_SCB_IGNORE,            AVDT_SCB_OPENING_ST},
+/* API_CLOSE_REQ_EVT */     {AVDT_SCB_SND_CLOSE_REQ,        AVDT_SCB_IGNORE,            AVDT_SCB_CLOSING_ST},
+/* API_RECONFIG_REQ_EVT */  {AVDT_SCB_CB_ERR,               AVDT_SCB_IGNORE,            AVDT_SCB_OPENING_ST},
+/* API_SECURITY_REQ_EVT */  {AVDT_SCB_SND_SECURITY_REQ,     AVDT_SCB_IGNORE,            AVDT_SCB_OPENING_ST},
+/* API_ABORT_REQ_EVT */     {AVDT_SCB_SND_ABORT_REQ,        AVDT_SCB_IGNORE,            AVDT_SCB_CLOSING_ST},
+/* API_GETCONFIG_RSP_EVT */ {AVDT_SCB_SND_GETCONFIG_RSP,    AVDT_SCB_IGNORE,            AVDT_SCB_OPENING_ST},
+/* API_SETCONFIG_RSP_EVT */ {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_OPENING_ST},
+/* API_SETCONFIG_REJ_EVT */ {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_OPENING_ST},
+/* API_OPEN_RSP_EVT */      {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_OPENING_ST},
+/* API_CLOSE_RSP_EVT */     {AVDT_SCB_SND_CLOSE_RSP,        AVDT_SCB_SND_TC_CLOSE,      AVDT_SCB_CLOSING_ST},
+/* API_RECONFIG_RSP_EVT */  {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_OPENING_ST},
+/* API_SECURITY_RSP_EVT */  {AVDT_SCB_SND_SECURITY_RSP,     AVDT_SCB_IGNORE,            AVDT_SCB_OPENING_ST},
+/* API_ABORT_RSP_EVT */     {AVDT_SCB_SND_ABORT_RSP,        AVDT_SCB_SND_TC_CLOSE,      AVDT_SCB_CLOSING_ST},
+/* MSG_SETCONFIG_CMD_EVT */ {AVDT_SCB_REJ_STATE,            AVDT_SCB_IGNORE,            AVDT_SCB_OPENING_ST},
+/* MSG_GETCONFIG_CMD_EVT */ {AVDT_SCB_HDL_GETCONFIG_CMD,    AVDT_SCB_IGNORE,            AVDT_SCB_OPENING_ST},
+/* MSG_OPEN_CMD_EVT */      {AVDT_SCB_REJ_STATE,            AVDT_SCB_IGNORE,            AVDT_SCB_OPENING_ST},
+/* MSG_START_CMD_EVT */     {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_OPENING_ST},
+/* MSG_SUSPEND_CMD_EVT */   {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_OPENING_ST},
+/* MSG_CLOSE_CMD_EVT */     {AVDT_SCB_HDL_CLOSE_CMD,        AVDT_SCB_IGNORE,            AVDT_SCB_OPENING_ST},
+/* MSG_ABORT_CMD_EVT */     {AVDT_SCB_HDL_ABORT_CMD,        AVDT_SCB_IGNORE,            AVDT_SCB_OPENING_ST},
+/* MSG_RECONFIG_CMD_EVT */  {AVDT_SCB_REJ_STATE,            AVDT_SCB_IGNORE,            AVDT_SCB_OPENING_ST},
+/* MSG_SECURITY_CMD_EVT */  {AVDT_SCB_HDL_SECURITY_CMD,     AVDT_SCB_IGNORE,            AVDT_SCB_OPENING_ST},
+/* MSG_DELAY_RPT_CMD_EVT */ {AVDT_SCB_HDL_DELAY_RPT_CMD,    AVDT_SCB_IGNORE,            AVDT_SCB_OPENING_ST},
+/* MSG_DELAY_RPT_RSP_EVT */ {AVDT_SCB_HDL_DELAY_RPT_RSP,    AVDT_SCB_IGNORE,            AVDT_SCB_OPENING_ST},
+/* MSG_SETCONFIG_RSP_EVT */ {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_OPENING_ST},
+/* MSG_GETCONFIG_RSP_EVT */ {AVDT_SCB_HDL_GETCONFIG_RSP,    AVDT_SCB_IGNORE,            AVDT_SCB_OPENING_ST},
+/* MSG_OPEN_RSP_EVT */      {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_OPENING_ST},
+/* MSG_START_RSP_EVT */     {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_OPENING_ST},
+/* MSG_SUSPEND_RSP_EVT */   {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_OPENING_ST},
+/* MSG_CLOSE_RSP_EVT */     {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_OPENING_ST},
+/* MSG_ABORT_RSP_EVT */     {AVDT_SCB_SND_TC_CLOSE,         AVDT_SCB_HDL_ABORT_RSP,     AVDT_SCB_CLOSING_ST},
+/* MSG_RECONFIG_RSP_EVT */  {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_OPENING_ST},
+/* MSG_SECURITY_RSP_EVT */  {AVDT_SCB_HDL_SECURITY_RSP,     AVDT_SCB_IGNORE,            AVDT_SCB_OPENING_ST},
+/* MSG_SETCONFIG_REJ_EVT */ {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_OPENING_ST},
+/* MSG_OPEN_REJ_EVT */      {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_OPENING_ST},
+/* MSG_START_REJ_EVT */     {AVDT_SCB_HDL_START_RSP,        AVDT_SCB_IGNORE,            AVDT_SCB_OPENING_ST},
+/* MSG_SUSPEND_REJ_EVT */   {AVDT_SCB_HDL_SUSPEND_RSP,      AVDT_SCB_IGNORE,            AVDT_SCB_OPENING_ST},
+/* TC_TOUT_EVT */           {AVDT_SCB_SND_ABORT_REQ,        AVDT_SCB_IGNORE,            AVDT_SCB_CLOSING_ST},
+/* TC_OPEN_EVT */           {AVDT_SCB_HDL_TC_OPEN,          AVDT_SCB_IGNORE,            AVDT_SCB_OPEN_ST},
+/* TC_CLOSE_EVT */          {AVDT_SCB_HDL_TC_CLOSE,         AVDT_SCB_IGNORE,            AVDT_SCB_IDLE_ST},
+/* TC_CONG_EVT */           {AVDT_SCB_CONG_STATE,           AVDT_SCB_IGNORE,            AVDT_SCB_OPENING_ST},
+/* TC_DATA_EVT */           {AVDT_SCB_DROP_PKT,             AVDT_SCB_IGNORE,            AVDT_SCB_OPENING_ST},
+/* CC_CLOSE_EVT */          {AVDT_SCB_SND_TC_CLOSE,         AVDT_SCB_IGNORE,            AVDT_SCB_CLOSING_ST}
+};
+
+/* state table for open state */
+const UINT8 avdt_scb_st_open[][AVDT_SCB_NUM_COLS] = {
+/* Event                     Action 1                       Action 2                    Next state */
+/* API_REMOVE_EVT */        {AVDT_SCB_SND_CLOSE_REQ,        AVDT_SCB_SET_REMOVE,        AVDT_SCB_CLOSING_ST},
+/* API_WRITE_REQ_EVT */     {AVDT_SCB_FREE_PKT,             AVDT_SCB_IGNORE,            AVDT_SCB_OPEN_ST},
+/* API_GETCONFIG_REQ_EVT */ {AVDT_SCB_SND_GETCONFIG_REQ,    AVDT_SCB_IGNORE,            AVDT_SCB_OPEN_ST},
+/* API_DELAY_RPT_REQ_EVT */ {AVDT_SCB_SND_DELAY_RPT_REQ,    AVDT_SCB_IGNORE,            AVDT_SCB_OPEN_ST},
+/* API_SETCONFIG_REQ_EVT */ {AVDT_SCB_CB_ERR,               AVDT_SCB_IGNORE,            AVDT_SCB_OPEN_ST},
+/* API_OPEN_REQ_EVT */      {AVDT_SCB_CB_ERR,               AVDT_SCB_IGNORE,            AVDT_SCB_OPEN_ST},
+/* API_CLOSE_REQ_EVT */     {AVDT_SCB_SND_CLOSE_REQ,        AVDT_SCB_IGNORE,            AVDT_SCB_CLOSING_ST},
+/* API_RECONFIG_REQ_EVT */  {AVDT_SCB_SND_RECONFIG_REQ,     AVDT_SCB_IGNORE,            AVDT_SCB_OPEN_ST},
+/* API_SECURITY_REQ_EVT */  {AVDT_SCB_SND_SECURITY_REQ,     AVDT_SCB_IGNORE,            AVDT_SCB_OPEN_ST},
+/* API_ABORT_REQ_EVT */     {AVDT_SCB_SND_ABORT_REQ,        AVDT_SCB_IGNORE,            AVDT_SCB_CLOSING_ST},
+/* API_GETCONFIG_RSP_EVT */ {AVDT_SCB_SND_GETCONFIG_RSP,    AVDT_SCB_IGNORE,            AVDT_SCB_OPEN_ST},
+/* API_SETCONFIG_RSP_EVT */ {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_OPEN_ST},
+/* API_SETCONFIG_REJ_EVT */ {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_OPEN_ST},
+/* API_OPEN_RSP_EVT */      {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_OPEN_ST},
+/* API_CLOSE_RSP_EVT */     {AVDT_SCB_SND_CLOSE_RSP,        AVDT_SCB_TC_TIMER,          AVDT_SCB_CLOSING_ST},
+/* API_RECONFIG_RSP_EVT */  {AVDT_SCB_SND_RECONFIG_RSP,     AVDT_SCB_IGNORE,            AVDT_SCB_OPEN_ST},
+/* API_SECURITY_RSP_EVT */  {AVDT_SCB_SND_SECURITY_RSP,     AVDT_SCB_IGNORE,            AVDT_SCB_OPEN_ST},
+/* API_ABORT_RSP_EVT */     {AVDT_SCB_SND_ABORT_RSP,        AVDT_SCB_TC_TIMER,          AVDT_SCB_CLOSING_ST},
+/* MSG_SETCONFIG_CMD_EVT */ {AVDT_SCB_REJ_STATE,            AVDT_SCB_IGNORE,            AVDT_SCB_OPEN_ST},
+/* MSG_GETCONFIG_CMD_EVT */ {AVDT_SCB_HDL_GETCONFIG_CMD,    AVDT_SCB_IGNORE,            AVDT_SCB_OPEN_ST},
+/* MSG_OPEN_CMD_EVT */      {AVDT_SCB_REJ_STATE,            AVDT_SCB_IGNORE,            AVDT_SCB_OPEN_ST},
+/* MSG_START_CMD_EVT */     {AVDT_SCB_HDL_START_CMD,        AVDT_SCB_IGNORE,            AVDT_SCB_STREAM_ST},
+/* MSG_SUSPEND_CMD_EVT */   {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_OPEN_ST},
+/* MSG_CLOSE_CMD_EVT */     {AVDT_SCB_HDL_CLOSE_CMD,        AVDT_SCB_IGNORE,            AVDT_SCB_OPEN_ST},
+/* MSG_ABORT_CMD_EVT */     {AVDT_SCB_HDL_ABORT_CMD,        AVDT_SCB_IGNORE,            AVDT_SCB_OPEN_ST},
+/* MSG_RECONFIG_CMD_EVT */  {AVDT_SCB_HDL_RECONFIG_CMD,     AVDT_SCB_IGNORE,            AVDT_SCB_OPEN_ST},
+/* MSG_SECURITY_CMD_EVT */  {AVDT_SCB_HDL_SECURITY_CMD,     AVDT_SCB_IGNORE,            AVDT_SCB_OPEN_ST},
+/* MSG_DELAY_RPT_CMD_EVT */ {AVDT_SCB_HDL_DELAY_RPT_CMD,    AVDT_SCB_IGNORE,            AVDT_SCB_OPEN_ST},
+/* MSG_DELAY_RPT_RSP_EVT */ {AVDT_SCB_HDL_DELAY_RPT_RSP,    AVDT_SCB_IGNORE,            AVDT_SCB_OPEN_ST},
+/* MSG_SETCONFIG_RSP_EVT */ {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_OPEN_ST},
+/* MSG_GETCONFIG_RSP_EVT */ {AVDT_SCB_HDL_GETCONFIG_RSP,    AVDT_SCB_IGNORE,            AVDT_SCB_OPEN_ST},
+/* MSG_OPEN_RSP_EVT */      {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_OPEN_ST},
+/* MSG_START_RSP_EVT */     {AVDT_SCB_HDL_START_RSP,        AVDT_SCB_IGNORE,            AVDT_SCB_STREAM_ST},
+/* MSG_SUSPEND_RSP_EVT */   {AVDT_SCB_HDL_SUSPEND_RSP,      AVDT_SCB_IGNORE,            AVDT_SCB_OPEN_ST},
+/* MSG_CLOSE_RSP_EVT */     {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_OPEN_ST},
+/* MSG_ABORT_RSP_EVT */     {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_IDLE_ST},
+/* MSG_RECONFIG_RSP_EVT */  {AVDT_SCB_HDL_RECONFIG_RSP,     AVDT_SCB_IGNORE,            AVDT_SCB_OPEN_ST},
+/* MSG_SECURITY_RSP_EVT */  {AVDT_SCB_HDL_SECURITY_RSP,     AVDT_SCB_IGNORE,            AVDT_SCB_OPEN_ST},
+/* MSG_SETCONFIG_REJ_EVT */ {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_OPEN_ST},
+/* MSG_OPEN_REJ_EVT */      {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_OPEN_ST},
+/* MSG_START_REJ_EVT */     {AVDT_SCB_HDL_START_RSP,        AVDT_SCB_IGNORE,            AVDT_SCB_OPEN_ST},
+/* MSG_SUSPEND_REJ_EVT */   {AVDT_SCB_HDL_SUSPEND_RSP,      AVDT_SCB_IGNORE,            AVDT_SCB_OPEN_ST},
+/* TC_TOUT_EVT */           {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_OPEN_ST},
+#if AVDT_REPORTING == TRUE
+/* TC_OPEN_EVT */           {AVDT_SCB_HDL_TC_OPEN_STO,      AVDT_SCB_IGNORE,            AVDT_SCB_OPEN_ST},
+/* TC_CLOSE_EVT */          {AVDT_SCB_HDL_TC_CLOSE_STO,     AVDT_SCB_IGNORE,            AVDT_SCB_OPEN_ST},
+#else
+/* TC_OPEN_EVT */           {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_OPEN_ST},
+/* TC_CLOSE_EVT */          {AVDT_SCB_HDL_TC_CLOSE,         AVDT_SCB_IGNORE,            AVDT_SCB_OPEN_ST},
+#endif
+/* TC_CONG_EVT */           {AVDT_SCB_CONG_STATE,           AVDT_SCB_IGNORE,            AVDT_SCB_OPEN_ST},
+/* TC_DATA_EVT */           {AVDT_SCB_DROP_PKT,             AVDT_SCB_IGNORE,            AVDT_SCB_OPEN_ST},
+/* CC_CLOSE_EVT */          {AVDT_SCB_SND_TC_CLOSE,         AVDT_SCB_IGNORE,            AVDT_SCB_CLOSING_ST}
+};
+
+/* state table for streaming state */
+const UINT8 avdt_scb_st_stream[][AVDT_SCB_NUM_COLS] = {
+/* Event                     Action 1                       Action 2                    Next state */
+/* API_REMOVE_EVT */        {AVDT_SCB_SND_STREAM_CLOSE,     AVDT_SCB_SET_REMOVE,        AVDT_SCB_CLOSING_ST},
+/* API_WRITE_REQ_EVT */     {AVDT_SCB_HDL_WRITE_REQ,        AVDT_SCB_CHK_SND_PKT,       AVDT_SCB_STREAM_ST},
+/* API_GETCONFIG_REQ_EVT */ {AVDT_SCB_SND_GETCONFIG_REQ,    AVDT_SCB_IGNORE,            AVDT_SCB_STREAM_ST},
+/* API_DELAY_RPT_REQ_EVT */ {AVDT_SCB_SND_DELAY_RPT_REQ,    AVDT_SCB_IGNORE,            AVDT_SCB_STREAM_ST},
+/* API_SETCONFIG_REQ_EVT */ {AVDT_SCB_CB_ERR,               AVDT_SCB_IGNORE,            AVDT_SCB_STREAM_ST},
+/* API_OPEN_REQ_EVT */      {AVDT_SCB_CB_ERR,               AVDT_SCB_IGNORE,            AVDT_SCB_STREAM_ST},
+/* API_CLOSE_REQ_EVT */     {AVDT_SCB_SND_STREAM_CLOSE,     AVDT_SCB_IGNORE,            AVDT_SCB_CLOSING_ST},
+/* API_RECONFIG_REQ_EVT */  {AVDT_SCB_CB_ERR,               AVDT_SCB_IGNORE,            AVDT_SCB_STREAM_ST},
+/* API_SECURITY_REQ_EVT */  {AVDT_SCB_SND_SECURITY_REQ,     AVDT_SCB_IGNORE,            AVDT_SCB_STREAM_ST},
+/* API_ABORT_REQ_EVT */     {AVDT_SCB_SND_ABORT_REQ,        AVDT_SCB_CLR_PKT,           AVDT_SCB_CLOSING_ST},
+/* API_GETCONFIG_RSP_EVT */ {AVDT_SCB_SND_GETCONFIG_RSP,    AVDT_SCB_IGNORE,            AVDT_SCB_STREAM_ST},
+/* API_SETCONFIG_RSP_EVT */ {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_STREAM_ST},
+/* API_SETCONFIG_REJ_EVT */ {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_STREAM_ST},
+/* API_OPEN_RSP_EVT */      {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_STREAM_ST},
+/* API_CLOSE_RSP_EVT */     {AVDT_SCB_SND_CLOSE_RSP,        AVDT_SCB_TC_TIMER,          AVDT_SCB_CLOSING_ST},
+/* API_RECONFIG_RSP_EVT */  {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_STREAM_ST},
+/* API_SECURITY_RSP_EVT */  {AVDT_SCB_SND_SECURITY_RSP,     AVDT_SCB_IGNORE,            AVDT_SCB_STREAM_ST},
+/* API_ABORT_RSP_EVT */     {AVDT_SCB_SND_ABORT_RSP,        AVDT_SCB_TC_TIMER,          AVDT_SCB_CLOSING_ST},
+/* MSG_SETCONFIG_CMD_EVT */ {AVDT_SCB_REJ_STATE,            AVDT_SCB_IGNORE,            AVDT_SCB_STREAM_ST},
+/* MSG_GETCONFIG_CMD_EVT */ {AVDT_SCB_HDL_GETCONFIG_CMD,    AVDT_SCB_IGNORE,            AVDT_SCB_STREAM_ST},
+/* MSG_OPEN_CMD_EVT */      {AVDT_SCB_REJ_STATE,            AVDT_SCB_IGNORE,            AVDT_SCB_STREAM_ST},
+/* MSG_START_CMD_EVT */     {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_STREAM_ST},
+/* MSG_SUSPEND_CMD_EVT */   {AVDT_SCB_HDL_SUSPEND_CMD,      AVDT_SCB_CLR_PKT,           AVDT_SCB_OPEN_ST},
+/* MSG_CLOSE_CMD_EVT */     {AVDT_SCB_HDL_CLOSE_CMD,        AVDT_SCB_IGNORE,            AVDT_SCB_STREAM_ST},
+/* MSG_ABORT_CMD_EVT */     {AVDT_SCB_HDL_ABORT_CMD,        AVDT_SCB_CLR_PKT,           AVDT_SCB_STREAM_ST},
+/* MSG_RECONFIG_CMD_EVT */  {AVDT_SCB_REJ_STATE,            AVDT_SCB_IGNORE,            AVDT_SCB_STREAM_ST},
+/* MSG_SECURITY_CMD_EVT */  {AVDT_SCB_HDL_SECURITY_CMD,     AVDT_SCB_IGNORE,            AVDT_SCB_STREAM_ST},
+/* MSG_DELAY_RPT_CMD_EVT */ {AVDT_SCB_HDL_DELAY_RPT_CMD,    AVDT_SCB_IGNORE,            AVDT_SCB_STREAM_ST},
+/* MSG_DELAY_RPT_RSP_EVT */ {AVDT_SCB_HDL_DELAY_RPT_RSP,    AVDT_SCB_IGNORE,            AVDT_SCB_STREAM_ST},
+/* MSG_SETCONFIG_RSP_EVT */ {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_STREAM_ST},
+/* MSG_GETCONFIG_RSP_EVT */ {AVDT_SCB_HDL_GETCONFIG_RSP,    AVDT_SCB_IGNORE,            AVDT_SCB_STREAM_ST},
+/* MSG_OPEN_RSP_EVT */      {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_STREAM_ST},
+/* MSG_START_RSP_EVT */     {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_STREAM_ST},
+/* MSG_SUSPEND_RSP_EVT */   {AVDT_SCB_HDL_SUSPEND_RSP,      AVDT_SCB_CLR_PKT,           AVDT_SCB_OPEN_ST},
+/* MSG_CLOSE_RSP_EVT */     {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_STREAM_ST},
+/* MSG_ABORT_RSP_EVT */     {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_STREAM_ST},
+/* MSG_RECONFIG_RSP_EVT */  {AVDT_SCB_HDL_RECONFIG_RSP,     AVDT_SCB_IGNORE,            AVDT_SCB_STREAM_ST},
+/* MSG_SECURITY_RSP_EVT */  {AVDT_SCB_HDL_SECURITY_RSP,     AVDT_SCB_IGNORE,            AVDT_SCB_STREAM_ST},
+/* MSG_SETCONFIG_REJ_EVT */ {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_STREAM_ST},
+/* MSG_OPEN_REJ_EVT */      {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_STREAM_ST},
+/* MSG_START_REJ_EVT */     {AVDT_SCB_HDL_START_RSP,        AVDT_SCB_IGNORE,            AVDT_SCB_STREAM_ST},
+/* MSG_SUSPEND_REJ_EVT */   {AVDT_SCB_HDL_SUSPEND_RSP,      AVDT_SCB_IGNORE,            AVDT_SCB_STREAM_ST},
+/* TC_TOUT_EVT */           {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_STREAM_ST},
+/* TC_OPEN_EVT */           {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_STREAM_ST},
+/* TC_CLOSE_EVT */          {AVDT_SCB_HDL_TC_CLOSE,         AVDT_SCB_IGNORE,            AVDT_SCB_IDLE_ST},
+/* TC_CONG_EVT */           {AVDT_SCB_CONG_STATE,           AVDT_SCB_CHK_SND_PKT,       AVDT_SCB_STREAM_ST},
+/* TC_DATA_EVT */           {AVDT_SCB_HDL_PKT,              AVDT_SCB_IGNORE,            AVDT_SCB_STREAM_ST},
+/* CC_CLOSE_EVT */          {AVDT_SCB_SND_TC_CLOSE,         AVDT_SCB_IGNORE,            AVDT_SCB_CLOSING_ST}
+};
+
+/* state table for closing state */
+const UINT8 avdt_scb_st_closing[][AVDT_SCB_NUM_COLS] = {
+/* Event                     Action 1                       Action 2                    Next state */
+/* API_REMOVE_EVT */        {AVDT_SCB_SET_REMOVE,           AVDT_SCB_IGNORE,            AVDT_SCB_CLOSING_ST},
+/* API_WRITE_REQ_EVT */     {AVDT_SCB_FREE_PKT,             AVDT_SCB_IGNORE,            AVDT_SCB_CLOSING_ST},
+/* API_GETCONFIG_REQ_EVT */ {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_CLOSING_ST},
+/* API_DELAY_RPT_REQ_EVT */ {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_CLOSING_ST},
+/* API_SETCONFIG_REQ_EVT */ {AVDT_SCB_CB_ERR,               AVDT_SCB_IGNORE,            AVDT_SCB_CLOSING_ST},
+/* API_OPEN_REQ_EVT */      {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_CLOSING_ST},
+/* API_CLOSE_REQ_EVT */     {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_CLOSING_ST},
+/* API_RECONFIG_REQ_EVT */  {AVDT_SCB_CB_ERR,               AVDT_SCB_IGNORE,            AVDT_SCB_CLOSING_ST},
+/* API_SECURITY_REQ_EVT */  {AVDT_SCB_CB_ERR,               AVDT_SCB_IGNORE,            AVDT_SCB_CLOSING_ST},
+/* API_ABORT_REQ_EVT */     {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_CLOSING_ST},
+/* API_GETCONFIG_RSP_EVT */ {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_CLOSING_ST},
+/* API_SETCONFIG_RSP_EVT */ {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_CLOSING_ST},
+/* API_SETCONFIG_REJ_EVT */ {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_CLOSING_ST},
+/* API_OPEN_RSP_EVT */      {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_CLOSING_ST},
+/* API_CLOSE_RSP_EVT */     {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_CLOSING_ST},
+/* API_RECONFIG_RSP_EVT */  {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_CLOSING_ST},
+/* API_SECURITY_RSP_EVT */  {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_CLOSING_ST},
+/* API_ABORT_RSP_EVT */     {AVDT_SCB_SND_ABORT_RSP,        AVDT_SCB_IGNORE,            AVDT_SCB_CLOSING_ST},
+/* MSG_SETCONFIG_CMD_EVT */ {AVDT_SCB_REJ_STATE,            AVDT_SCB_IGNORE,            AVDT_SCB_CLOSING_ST},
+/* MSG_GETCONFIG_CMD_EVT */ {AVDT_SCB_REJ_STATE,            AVDT_SCB_IGNORE,            AVDT_SCB_CLOSING_ST},
+/* MSG_OPEN_CMD_EVT */      {AVDT_SCB_REJ_STATE,            AVDT_SCB_IGNORE,            AVDT_SCB_CLOSING_ST},
+/* MSG_START_CMD_EVT */     {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_CLOSING_ST},
+/* MSG_SUSPEND_CMD_EVT */   {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_CLOSING_ST},
+/* MSG_CLOSE_CMD_EVT */     {AVDT_SCB_REJ_STATE,            AVDT_SCB_IGNORE,            AVDT_SCB_CLOSING_ST},
+/* MSG_ABORT_CMD_EVT */     {AVDT_SCB_HDL_ABORT_CMD,        AVDT_SCB_IGNORE,            AVDT_SCB_CLOSING_ST},
+/* MSG_RECONFIG_CMD_EVT */  {AVDT_SCB_REJ_STATE,            AVDT_SCB_IGNORE,            AVDT_SCB_CLOSING_ST},
+/* MSG_SECURITY_CMD_EVT */  {AVDT_SCB_REJ_STATE,            AVDT_SCB_IGNORE,            AVDT_SCB_CLOSING_ST},
+/* MSG_DELAY_RPT_CMD_EVT */ {AVDT_SCB_REJ_STATE,            AVDT_SCB_IGNORE,            AVDT_SCB_CLOSING_ST},
+/* MSG_DELAY_RPT_RSP_EVT */ {AVDT_SCB_HDL_DELAY_RPT_RSP,    AVDT_SCB_IGNORE,            AVDT_SCB_CLOSING_ST},
+/* MSG_SETCONFIG_RSP_EVT */ {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_CLOSING_ST},
+/* MSG_GETCONFIG_RSP_EVT */ {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_CLOSING_ST},
+/* MSG_OPEN_RSP_EVT */      {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_CLOSING_ST},
+/* MSG_START_RSP_EVT */     {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_CLOSING_ST},
+/* MSG_SUSPEND_RSP_EVT */   {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_CLOSING_ST},
+/* MSG_CLOSE_RSP_EVT */     {AVDT_SCB_SND_TC_CLOSE,         AVDT_SCB_HDL_CLOSE_RSP,     AVDT_SCB_CLOSING_ST},
+/* MSG_ABORT_RSP_EVT */     {AVDT_SCB_SND_TC_CLOSE,         AVDT_SCB_HDL_ABORT_RSP,     AVDT_SCB_CLOSING_ST},
+/* MSG_RECONFIG_RSP_EVT */  {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_CLOSING_ST},
+/* MSG_SECURITY_RSP_EVT */  {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_CLOSING_ST},
+/* MSG_SETCONFIG_REJ_EVT */ {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_CLOSING_ST},
+/* MSG_OPEN_REJ_EVT */      {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_CLOSING_ST},
+/* MSG_START_REJ_EVT */     {AVDT_SCB_HDL_START_RSP,        AVDT_SCB_IGNORE,            AVDT_SCB_CLOSING_ST},
+/* MSG_SUSPEND_REJ_EVT */   {AVDT_SCB_HDL_SUSPEND_RSP,      AVDT_SCB_IGNORE,            AVDT_SCB_CLOSING_ST},
+/* TC_TOUT_EVT */           {AVDT_SCB_SND_TC_CLOSE,         AVDT_SCB_IGNORE,            AVDT_SCB_CLOSING_ST},
+/* TC_OPEN_EVT */           {AVDT_SCB_SND_TC_CLOSE,         AVDT_SCB_IGNORE,            AVDT_SCB_CLOSING_ST},
+/* TC_CLOSE_EVT */          {AVDT_SCB_HDL_TC_CLOSE,         AVDT_SCB_IGNORE,            AVDT_SCB_IDLE_ST},
+/* TC_CONG_EVT */           {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_CLOSING_ST},
+/* TC_DATA_EVT */           {AVDT_SCB_DROP_PKT,             AVDT_SCB_IGNORE,            AVDT_SCB_CLOSING_ST},
+/* CC_CLOSE_EVT */          {AVDT_SCB_IGNORE,               AVDT_SCB_IGNORE,            AVDT_SCB_CLOSING_ST}
+};
+
+/* type for state table */
+typedef const UINT8 (*tAVDT_SCB_ST_TBL)[AVDT_SCB_NUM_COLS];
+
+/* state table */
+const tAVDT_SCB_ST_TBL avdt_scb_st_tbl[] = {
+    avdt_scb_st_idle,
+    avdt_scb_st_conf,
+    avdt_scb_st_opening,
+    avdt_scb_st_open,
+    avdt_scb_st_stream,
+    avdt_scb_st_closing
+};
+
+
+/*******************************************************************************
+**
+** Function         avdt_scb_event
+**
+** Description      State machine event handling function for scb
+**
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_event(tAVDT_SCB *p_scb, UINT8 event, tAVDT_SCB_EVT *p_data)
+{
+    tAVDT_SCB_ST_TBL    state_table;
+    UINT8               action;
+    int                 i;
+
+#if AVDT_DEBUG == TRUE
+    AVDT_TRACE_EVENT("SCB hdl=%d event=%d/%s state=%s", avdt_scb_to_hdl(p_scb), event, avdt_scb_evt_str[event], avdt_scb_st_str[p_scb->state]);
+#endif
+    /* set current event */
+    p_scb->curr_evt = event;
+
+    /* look up the state table for the current state */
+    state_table = avdt_scb_st_tbl[p_scb->state];
+
+    /* set next state */
+    if (p_scb->state != state_table[event][AVDT_SCB_NEXT_STATE]) {
+        p_scb->state = state_table[event][AVDT_SCB_NEXT_STATE];
+    }
+
+    /* execute action functions */
+    for (i = 0; i < AVDT_SCB_ACTIONS; i++)
+    {
+        if ((action = state_table[event][i]) != AVDT_SCB_IGNORE)
+        {
+            (*avdt_cb.p_scb_act[action])(p_scb, p_data);
+        }
+        else
+        {
+            break;
+        }
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         avdt_scb_init
+**
+** Description      Initialize stream control block module.
+**
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_init(void)
+{
+    memset(&avdt_cb.scb[0], 0, sizeof(tAVDT_SCB) * AVDT_NUM_SEPS);
+    avdt_cb.p_scb_act = (tAVDT_SCB_ACTION *) avdt_scb_action;
+}
+
+
+/*******************************************************************************
+**
+** Function         avdt_scb_alloc
+**
+** Description      Allocate a stream control block.
+**
+**
+** Returns          pointer to the scb, or NULL if none could be allocated.
+**
+*******************************************************************************/
+tAVDT_SCB *avdt_scb_alloc(tAVDT_CS *p_cs)
+{
+    tAVDT_SCB   *p_scb = &avdt_cb.scb[0];
+    int         i;
+
+    /* find available scb */
+    for (i = 0; i < AVDT_NUM_SEPS; i++, p_scb++)
+    {
+        if (!p_scb->allocated)
+        {
+            memset(p_scb,0,sizeof(tAVDT_SCB));
+            p_scb->allocated = TRUE;
+            p_scb->p_ccb = NULL;
+
+            memcpy(&p_scb->cs, p_cs, sizeof(tAVDT_CS));
+#if AVDT_MULTIPLEXING == TRUE
+            /* initialize fragments gueue */
+            p_scb->frag_q = fixed_queue_new(SIZE_MAX);
+
+            if(p_cs->cfg.psc_mask & AVDT_PSC_MUX)
+            {
+                p_scb->cs.cfg.mux_tcid_media = avdt_ad_type_to_tcid(AVDT_CHAN_MEDIA, p_scb);
+#if AVDT_REPORTING == TRUE
+                if(p_cs->cfg.psc_mask & AVDT_PSC_REPORT)
+                {
+                    p_scb->cs.cfg.mux_tcid_report = avdt_ad_type_to_tcid(AVDT_CHAN_REPORT, p_scb);
+                }
+#endif
+            }
+#endif
+            p_scb->transport_channel_timer =
+                alarm_new("avdt_scb.transport_channel_timer");
+            AVDT_TRACE_DEBUG("avdt_scb_alloc hdl=%d, psc_mask:0x%x", i+1, p_cs->cfg.psc_mask);
+            break;
+        }
+    }
+
+    if (i == AVDT_NUM_SEPS)
+    {
+        /* out of ccbs */
+        p_scb = NULL;
+        AVDT_TRACE_WARNING("Out of scbs");
+    }
+
+    return p_scb;
+}
+
+/*******************************************************************************
+**
+** Function         avdt_scb_dealloc
+**
+** Description      Deallocate a stream control block.
+**
+**
+** Returns          void.
+**
+*******************************************************************************/
+void avdt_scb_dealloc(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
+{
+    UNUSED(p_data);
+
+    AVDT_TRACE_DEBUG("avdt_scb_dealloc hdl=%d", avdt_scb_to_hdl(p_scb));
+    alarm_free(p_scb->transport_channel_timer);
+
+#if AVDT_MULTIPLEXING == TRUE
+    /* free fragments we're holding, if any; it shouldn't happen */
+    fixed_queue_free(p_scb->frag_q, osi_free);
+#endif
+
+    memset(p_scb, 0, sizeof(tAVDT_SCB));
+}
+
+/*******************************************************************************
+**
+** Function         avdt_scb_to_hdl
+**
+** Description      Given a pointer to an scb, return its handle (or seid).
+**
+**
+** Returns          Index of scb.
+**
+*******************************************************************************/
+UINT8 avdt_scb_to_hdl(tAVDT_SCB *p_scb)
+{
+    return (UINT8) (p_scb - avdt_cb.scb + 1);
+}
+
+/*******************************************************************************
+**
+** Function         avdt_scb_by_hdl
+**
+** Description      Given an scb handle (or seid), return a pointer to the scb.
+**
+**
+** Returns          Pointer to scb or NULL if index is out of range or scb
+**                  is not allocated.
+**
+*******************************************************************************/
+tAVDT_SCB *avdt_scb_by_hdl(UINT8 hdl)
+{
+    tAVDT_SCB   *p_scb;
+
+    /* verify index */
+    if ((hdl > 0) && (hdl <= AVDT_NUM_SEPS))
+    {
+        p_scb = &avdt_cb.scb[hdl - 1];
+
+        /* verify scb is allocated */
+        if (!p_scb->allocated)
+        {
+            p_scb = NULL;
+            AVDT_TRACE_WARNING("scb hdl %d not allocated", hdl);
+        }
+    }
+    else
+    {
+        p_scb = NULL;
+        AVDT_TRACE_WARNING("scb hdl %d out of range", hdl);
+    }
+    return p_scb;
+}
+
+/*******************************************************************************
+**
+** Function         avdt_scb_verify
+**
+** Description      Verify the condition of a list of scbs.
+**
+**
+** Returns          SEID that failed, or 0 if success.
+**
+*******************************************************************************/
+UINT8 avdt_scb_verify(tAVDT_CCB *p_ccb, UINT8 state, UINT8 *p_seid, UINT16 num_seid, UINT8 *p_err_code)
+{
+    int         i;
+    tAVDT_SCB   *p_scb;
+    UINT8       nsc_mask;
+    UINT8       ret = 0;
+
+    AVDT_TRACE_DEBUG("avdt_scb_verify state %d", state);
+    /* set nonsupported command mask */
+    /* translate public state into private state */
+    nsc_mask = 0;
+    if (state == AVDT_VERIFY_SUSPEND)
+      nsc_mask = AVDT_NSC_SUSPEND;
+
+    /* verify every scb */
+    for (i = 0, *p_err_code = 0; (i < num_seid) && (*p_err_code == 0) && (i < AVDT_NUM_SEPS); i++)
+    {
+        if ((p_scb = avdt_scb_by_hdl(p_seid[i])) == NULL)
+            *p_err_code = AVDT_ERR_BAD_STATE;
+        else if (p_scb->p_ccb != p_ccb)
+            *p_err_code = AVDT_ERR_BAD_STATE;
+        else if (p_scb->cs.nsc_mask & nsc_mask)
+            *p_err_code = AVDT_ERR_NSC;
+
+        switch (state) {
+          case AVDT_VERIFY_OPEN:
+          case AVDT_VERIFY_START:
+            if (p_scb->state != AVDT_SCB_OPEN_ST && p_scb->state != AVDT_SCB_STREAM_ST)
+              *p_err_code = AVDT_ERR_BAD_STATE;
+            break;
+
+          case AVDT_VERIFY_SUSPEND:
+          case AVDT_VERIFY_STREAMING:
+            if (p_scb->state != AVDT_SCB_STREAM_ST)
+              *p_err_code = AVDT_ERR_BAD_STATE;
+            break;
+        }
+    }
+
+    if ((i != num_seid) && (i < AVDT_NUM_SEPS))
+    {
+        ret = p_seid[i];
+    }
+
+    return ret;
+}
+
+/*******************************************************************************
+**
+** Function         avdt_scb_peer_seid_list
+**
+** Description      Given a list of SCB handles, return a list of peer SEIDs
+**                  for the handles, copied in place into the struct passed in.
+**
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_peer_seid_list(tAVDT_MULTI *p_multi)
+{
+    int         i;
+    tAVDT_SCB   *p_scb;
+
+    for (i = 0; i < p_multi->num_seps; i++)
+    {
+        if ((p_scb = avdt_scb_by_hdl(p_multi->seid_list[i])) != NULL)
+        {
+            p_multi->seid_list[i] = p_scb->peer_seid;
+        }
+    }
+}
+
diff --git a/rtkbt/code/bt/stack/avdt/avdt_scb_act.c b/rtkbt/code/bt/stack/avdt/avdt_scb_act.c
new file mode 100755
index 0000000..ed0b675
--- /dev/null
+++ b/rtkbt/code/bt/stack/avdt/avdt_scb_act.c
@@ -0,0 +1,2160 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2002-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This module contains the action functions associated with the stream
+ *  control block state machine.
+ *
+ ******************************************************************************/
+
+#include <string.h>
+#include "bt_types.h"
+#include "bt_target.h"
+#include "bt_utils.h"
+#include "avdt_api.h"
+#include "avdtc_api.h"
+#include "avdt_int.h"
+#include "bt_common.h"
+#include "btu.h"
+
+
+extern fixed_queue_t *btu_general_alarm_queue;
+
+/* This table is used to lookup the callback event that matches a particular
+** state machine API request event.  Note that state machine API request
+** events are at the beginning of the event list starting at zero, thus
+** allowing for this table.
+*/
+const UINT8 avdt_scb_cback_evt[] = {
+    0,                          /* API_REMOVE_EVT (no event) */
+    AVDT_WRITE_CFM_EVT,         /* API_WRITE_REQ_EVT */
+    0,                          /* API_GETCONFIG_REQ_EVT (no event) */
+    0,                          /* API_DELAY_RPT_REQ_EVT (no event) */
+    AVDT_OPEN_CFM_EVT,          /* API_SETCONFIG_REQ_EVT */
+    AVDT_OPEN_CFM_EVT,          /* API_OPEN_REQ_EVT */
+    AVDT_CLOSE_CFM_EVT,         /* API_CLOSE_REQ_EVT */
+    AVDT_RECONFIG_CFM_EVT,      /* API_RECONFIG_REQ_EVT */
+    AVDT_SECURITY_CFM_EVT,      /* API_SECURITY_REQ_EVT */
+    0                           /* API_ABORT_REQ_EVT (no event) */
+};
+
+/* This table is used to look up the callback event based on the signaling
+** role when the stream is closed.
+*/
+const UINT8 avdt_scb_role_evt[] = {
+    AVDT_CLOSE_IND_EVT,         /* AVDT_CLOSE_ACP */
+    AVDT_CLOSE_CFM_EVT,         /* AVDT_CLOSE_INT */
+    AVDT_CLOSE_IND_EVT,         /* AVDT_OPEN_ACP */
+    AVDT_OPEN_CFM_EVT           /* AVDT_OPEN_INT */
+};
+
+/*******************************************************************************
+**
+** Function         avdt_scb_gen_ssrc
+**
+** Description      This function generates a SSRC number unique to the stream.
+**
+** Returns          SSRC value.
+**
+*******************************************************************************/
+UINT32 avdt_scb_gen_ssrc(tAVDT_SCB *p_scb)
+{
+    /* combine the value of the media type and codec type of the SCB */
+    return ((UINT32)(p_scb->cs.cfg.codec_info[1] | p_scb->cs.cfg.codec_info[2]));
+}
+
+/*******************************************************************************
+**
+** Function         avdt_scb_hdl_abort_cmd
+**
+** Description      This function sends the SCB an AVDT_SCB_API_ABORT_RSP_EVT
+**                  to initiate sending of an abort response message.
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_hdl_abort_cmd(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
+{
+    p_scb->role = AVDT_CLOSE_ACP;
+    avdt_scb_event(p_scb, AVDT_SCB_API_ABORT_RSP_EVT, p_data);
+}
+
+/*******************************************************************************
+**
+** Function         avdt_scb_hdl_abort_rsp
+**
+** Description      This function is an empty function; it serves as a
+**                  placeholder for a conformance API action function.
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_hdl_abort_rsp(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
+{
+    UNUSED(p_scb);
+    UNUSED(p_data);
+    return;
+}
+
+/*******************************************************************************
+**
+** Function         avdt_scb_hdl_close_cmd
+**
+** Description      This function sends the SCB an AVDT_SCB_API_CLOSE_RSP_EVT
+**                  to initiate sending of a close response message.
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_hdl_close_cmd(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
+{
+    p_scb->role = AVDT_CLOSE_ACP;
+    avdt_scb_event(p_scb, AVDT_SCB_API_CLOSE_RSP_EVT, p_data);
+}
+
+/*******************************************************************************
+**
+** Function         avdt_scb_hdl_close_rsp
+**
+** Description      This function sets the close_code variable to the error
+**                  code returned in the close response.
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_hdl_close_rsp(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
+{
+    p_scb->close_code = p_data->msg.hdr.err_code;
+}
+
+/*******************************************************************************
+**
+** Function         avdt_scb_hdl_getconfig_cmd
+**
+** Description      This function retrieves the configuration parameters of
+**                  the SCB and sends the SCB an AVDT_SCB_API_GETCONFIG_RSP_EVT
+**                  to initiate sending of a get configuration response message.
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_hdl_getconfig_cmd(tAVDT_SCB *p_scb,tAVDT_SCB_EVT *p_data)
+{
+    p_data->msg.svccap.p_cfg = &p_scb->curr_cfg;
+
+    avdt_scb_event(p_scb, AVDT_SCB_API_GETCONFIG_RSP_EVT, p_data);
+}
+
+/*******************************************************************************
+**
+** Function         avdt_scb_hdl_getconfig_rsp
+**
+** Description      This function is an empty function; it serves as a
+**                  placeholder for a conformance API action function.
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_hdl_getconfig_rsp(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
+{
+    UNUSED(p_scb);
+    UNUSED(p_data);
+    return;
+}
+
+/*******************************************************************************
+**
+** Function         avdt_scb_hdl_open_cmd
+**
+** Description      This function sends the SCB an AVDT_SCB_API_OPEN_RSP_EVT
+**                  to initiate sending of an open response message.
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_hdl_open_cmd(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
+{
+    avdt_scb_event(p_scb, AVDT_SCB_API_OPEN_RSP_EVT, p_data);
+}
+
+/*******************************************************************************
+**
+** Function         avdt_scb_hdl_open_rej
+**
+** Description      This function calls the application callback function
+**                  indicating the open request has failed.  It initializes
+**                  certain SCB variables and sends a AVDT_CCB_UL_CLOSE_EVT
+**                  to the CCB.
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_hdl_open_rej(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
+{
+    /* do exactly same as setconfig reject */
+    avdt_scb_hdl_setconfig_rej(p_scb, p_data);
+}
+
+/*******************************************************************************
+**
+** Function         avdt_scb_hdl_open_rsp
+**
+** Description      This function calls avdt_ad_open_req() to initiate
+**                  connection of the transport channel for this stream.
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_hdl_open_rsp(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
+{
+    UNUSED(p_data);
+
+    /* initiate opening of trans channels for this SEID */
+    p_scb->role = AVDT_OPEN_INT;
+    avdt_ad_open_req(AVDT_CHAN_MEDIA, p_scb->p_ccb, p_scb, AVDT_INT);
+
+    /* start tc connect timer */
+    alarm_set_on_queue(p_scb->transport_channel_timer,
+                       AVDT_SCB_TC_CONN_TIMEOUT_MS,
+                       avdt_scb_transport_channel_timer_timeout, p_scb,
+                       btu_general_alarm_queue);
+}
+
+/*******************************************************************************
+**
+** Function         avdt_scb_hdl_pkt_no_frag
+**
+** Description
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_hdl_pkt_no_frag(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
+{
+    UINT8   *p, *p_start;
+    UINT8   o_v, o_p, o_x, o_cc;
+    UINT8   m_pt;
+    UINT8   marker;
+    UINT16  seq;
+    UINT32  time_stamp;
+    UINT16  offset;
+    UINT16  ex_len;
+    UINT8   pad_len = 0;
+
+    p = p_start = (UINT8 *)(p_data->p_pkt + 1) + p_data->p_pkt->offset;
+
+    /* parse media packet header */
+    AVDT_MSG_PRS_OCTET1(p, o_v, o_p, o_x, o_cc);
+    AVDT_MSG_PRS_M_PT(p, m_pt, marker);
+    BE_STREAM_TO_UINT16(seq, p);
+    BE_STREAM_TO_UINT32(time_stamp, p);
+    p += 4;
+
+    UNUSED(o_v);
+
+    /* skip over any csrc's in packet */
+    p += o_cc * 4;
+
+    /* check for and skip over extension header */
+    if (o_x)
+    {
+        p += 2;
+        BE_STREAM_TO_UINT16(ex_len, p);
+        p += ex_len * 4;
+    }
+
+    /* save our new offset */
+    offset = (UINT16) (p - p_start);
+
+    /* adjust length for any padding at end of packet */
+    if (o_p)
+    {
+        /* padding length in last byte of packet */
+        pad_len =  *(p_start + p_data->p_pkt->len);
+    }
+
+    /* do sanity check */
+    if ((offset > p_data->p_pkt->len) || ((pad_len + offset) > p_data->p_pkt->len))
+    {
+        AVDT_TRACE_WARNING("Got bad media packet");
+        osi_free_and_reset((void **)&p_data->p_pkt);
+    }
+    /* adjust offset and length and send it up */
+    else
+    {
+        p_data->p_pkt->len -= (offset + pad_len);
+        p_data->p_pkt->offset += offset;
+
+        if (p_scb->cs.p_data_cback != NULL)
+        {
+            /* report sequence number */
+            p_data->p_pkt->layer_specific = seq;
+            (*p_scb->cs.p_data_cback)(avdt_scb_to_hdl(p_scb), p_data->p_pkt,
+                time_stamp, (UINT8)(m_pt | (marker<<7)));
+        }
+        else
+        {
+#if AVDT_MULTIPLEXING == TRUE
+            if ((p_scb->cs.p_media_cback != NULL)
+             && (p_scb->p_media_buf != NULL)
+             && (p_scb->media_buf_len > p_data->p_pkt->len))
+            {
+                /* media buffer enough length is assigned by application. Lets use it*/
+                memcpy(p_scb->p_media_buf,(UINT8*)(p_data->p_pkt + 1) + p_data->p_pkt->offset,
+                    p_data->p_pkt->len);
+                (*p_scb->cs.p_media_cback)(avdt_scb_to_hdl(p_scb),p_scb->p_media_buf,
+                    p_scb->media_buf_len,time_stamp,seq,m_pt,marker);
+            }
+#endif
+            osi_free_and_reset((void **)&p_data->p_pkt);
+        }
+    }
+}
+
+#if AVDT_REPORTING == TRUE
+/*******************************************************************************
+**
+** Function         avdt_scb_hdl_report
+**
+** Description
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+UINT8 * avdt_scb_hdl_report(tAVDT_SCB *p_scb, UINT8 *p, UINT16 len)
+{
+    UINT16  result = AVDT_SUCCESS;
+    UINT8   *p_start = p;
+    UINT32  ssrc;
+    UINT8   o_v, o_p, o_cc;
+    AVDT_REPORT_TYPE    pt;
+    tAVDT_REPORT_DATA   report, *p_rpt;
+
+    AVDT_TRACE_DEBUG( "avdt_scb_hdl_report");
+    if(p_scb->cs.p_report_cback)
+    {
+        p_rpt = &report;
+        /* parse report packet header */
+        AVDT_MSG_PRS_RPT_OCTET1(p, o_v, o_p, o_cc);
+        pt = *p++;
+        p += 2;
+        BE_STREAM_TO_UINT32(ssrc, p);
+
+        UNUSED(o_p);
+        UNUSED(o_v);
+
+        switch(pt)
+        {
+        case AVDT_RTCP_PT_SR:   /* the packet type - SR (Sender Report) */
+            BE_STREAM_TO_UINT32(report.sr.ntp_sec, p);
+            BE_STREAM_TO_UINT32(report.sr.ntp_frac, p);
+            BE_STREAM_TO_UINT32(report.sr.rtp_time, p);
+            BE_STREAM_TO_UINT32(report.sr.pkt_count, p);
+            BE_STREAM_TO_UINT32(report.sr.octet_count, p);
+            break;
+
+        case AVDT_RTCP_PT_RR:   /* the packet type - RR (Receiver Report) */
+            report.rr.frag_lost = *p;
+            BE_STREAM_TO_UINT32(report.rr.packet_lost, p);
+            report.rr.packet_lost &= 0xFFFFFF;
+            BE_STREAM_TO_UINT32(report.rr.seq_num_rcvd, p);
+            BE_STREAM_TO_UINT32(report.rr.jitter, p);
+            BE_STREAM_TO_UINT32(report.rr.lsr, p);
+            BE_STREAM_TO_UINT32(report.rr.dlsr, p);
+            break;
+
+        case AVDT_RTCP_PT_SDES: /* the packet type - SDES (Source Description) */
+            if(*p == AVDT_RTCP_SDES_CNAME)
+            {
+                p_rpt = (tAVDT_REPORT_DATA *)(p+2);
+            }
+            else
+            {
+                AVDT_TRACE_WARNING( " - SDES SSRC=0x%08x sc=%d %d len=%d %s",
+                    ssrc, o_cc, *p, *(p+1), p+2);
+                result = AVDT_BUSY;
+            }
+            break;
+
+        default:
+            AVDT_TRACE_ERROR( "Bad Report pkt - packet type: %d", pt);
+            result = AVDT_BAD_PARAMS;
+        }
+
+        if(result == AVDT_SUCCESS)
+            (*p_scb->cs.p_report_cback)(avdt_scb_to_hdl(p_scb), pt, p_rpt);
+
+    }
+    p_start += len;
+    return p_start;
+}
+#endif
+
+#if AVDT_MULTIPLEXING == TRUE
+/*******************************************************************************
+**
+** Function         avdt_scb_hdl_pkt_frag
+**
+** Description
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_hdl_pkt_frag(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
+{
+    /* Fields of Adaptation Layer Header */
+    UINT8   al_tsid,al_frag,al_lcode;
+    UINT16  al_len;
+    /* media header fields */
+    UINT8   o_v, o_p, o_x, o_cc;
+    UINT8   m_pt;
+    UINT8   marker;
+    UINT16  seq;
+    UINT32  time_stamp;
+    UINT32  ssrc;
+    UINT16  ex_len;
+    UINT8   pad_len;
+    /* other variables */
+    UINT8   *p; /* current pointer */
+    UINT8   *p_end; /* end of all packet */
+    UINT8   *p_payload; /* pointer to media fragment payload in the buffer */
+    UINT32  payload_len; /* payload length */
+    UINT16  frag_len; /* fragment length */
+
+    p = (UINT8 *)(p_data->p_pkt + 1) + p_data->p_pkt->offset;
+    p_end = p + p_data->p_pkt->len;
+    /* parse all fragments */
+    while(p < p_end)
+    {
+        if (p_end - p < 4) /* length check. maximum length of AL header = 4 */
+        {
+            AVDT_TRACE_WARNING("p_end: 0x%x - p:0x%x < 4", p_end, p);
+            break;
+        }
+
+        /* parse first byte */
+        al_tsid = (*p)>>3;
+        al_frag = ( (*p) >> 2 ) & 0x01;
+        al_lcode = (*p++) & AVDT_ALH_LCODE_MASK;
+
+        /* in case of TSID=00000, a second AL header byte, before the length field,
+        ** is expected and contains the actual TSID, aligned with MSB */
+        if(al_tsid == 0)
+            al_tsid = *p++;
+
+        /* get remaining media length on base of lcode */
+        switch(al_lcode)
+        {
+        case AVDT_ALH_LCODE_NONE:  /* No length field present. Take length from l2cap */
+            al_len = (UINT16)(p_end - p);
+            break;
+        case AVDT_ALH_LCODE_16BIT:  /* 16 bit length field */
+            BE_STREAM_TO_UINT16(al_len, p);
+            break;
+        case AVDT_ALH_LCODE_9BITM0:  /* 9 bit length field, MSB = 0, 8 LSBs in 1 octet following */
+            al_len = *p++;
+            break;
+        default:    /* 9 bit length field, MSB = 1, 8 LSBs in 1 octet following */
+            al_len =(UINT16)*p++ + 0x100;
+        }
+
+        /* max fragment length */
+        frag_len = (UINT16)(p_end - p);
+        /* if it isn't last fragment */
+        if(frag_len >= al_len)
+            frag_len = al_len;
+
+        /* check TSID corresponds to config */
+        if (al_tsid != p_scb->curr_cfg.mux_tsid_media)
+        {
+#if AVDT_REPORTING == TRUE
+            if((p_scb->curr_cfg.psc_mask & AVDT_PSC_REPORT) &&
+                (al_tsid == p_scb->curr_cfg.mux_tsid_report))
+            {
+                /* parse reporting packet */
+                p = avdt_scb_hdl_report(p_scb, p, frag_len);
+                continue;
+            }
+            else
+#endif
+            {
+                AVDT_TRACE_WARNING("bad tsid: %d, mux_tsid_media:%d", al_tsid, p_scb->curr_cfg.mux_tsid_media);
+                break;
+            }
+        }
+        /* check are buffer for assembling and related callback set */
+        else if ((p_scb->p_media_buf == NULL) || (p_scb->cs.p_media_cback == NULL))
+        {
+            AVDT_TRACE_WARNING("NULL p_media_buf or p_media_cback");
+            break;
+        }
+
+
+        /* it is media fragment beginning */
+        if(!al_frag) /* is it first fragment of original media packet */
+        {
+            AVDT_TRACE_DEBUG("al:%d media:%d",
+                al_len, p_scb->media_buf_len);
+
+            p_scb->frag_off = 0;
+            p_scb->frag_org_len = al_len; /* total length of original media packet */
+            /* length check: minimum length of media header is 12 */
+            if (p_scb->frag_org_len < 12)
+            {
+                AVDT_TRACE_WARNING("bad al_len: %d(<12)", al_len);
+                break;
+            }
+            /* check that data fit into buffer */
+            if (al_len > p_scb->media_buf_len)
+            {
+                AVDT_TRACE_WARNING("bad al_len: %d(>%d)", al_len, p_scb->media_buf_len);
+                break;
+            }
+            /* make sure it is the last fragment in l2cap packet */
+            if (p + al_len < p_end)
+            {
+                AVDT_TRACE_WARNING("bad al_len: %d(>%d)", al_len, p_scb->media_buf_len);
+                break;
+            }
+        }
+        else
+        {
+            AVDT_TRACE_DEBUG("al:%d media:%d frag_org_len:%d frag_off:%d",
+                al_len, p_scb->media_buf_len, p_scb->frag_org_len, p_scb->frag_off);
+
+            /* check that remaining length from AL header equals to original len - length of already received fragments */
+            if(al_len != p_scb->frag_org_len - p_scb->frag_off)
+            {
+                AVDT_TRACE_WARNING("al_len:%d != (frag_org_len:%d - frag_off:%d) %d",
+                    al_len, p_scb->frag_org_len, p_scb->frag_off,
+                    (p_scb->frag_org_len- p_scb->frag_off));
+                break;
+            }
+
+            /* do sanity check */
+            if (p_scb->frag_off == 0)
+            {
+                AVDT_TRACE_WARNING("frag_off=0");
+                break;
+            }
+        }
+        /* do common sanity check */
+        if((p_scb->frag_org_len <= p_scb->frag_off) || (p_scb->frag_org_len >= p_scb->media_buf_len))
+        {
+            AVDT_TRACE_WARNING("common sanity frag_off:%d frag_org_len:%d media_buf_len:%d",
+                p_scb->frag_off, p_scb->frag_org_len, p_scb->media_buf_len);
+            break;
+        }
+
+        AVDT_TRACE_DEBUG("Received fragment org_len=%d off=%d al_len=%d frag_len=%d",
+            p_scb->frag_org_len, p_scb->frag_off, al_len, frag_len);
+
+        /* copy fragment into buffer */
+        memcpy(p_scb->p_media_buf + p_scb->frag_off, p, frag_len);
+        p_scb->frag_off += frag_len;
+        /* move to the next fragment */
+        p += frag_len;
+        /* if it is last fragment in original media packet then process total media pocket */
+        if(p_scb->frag_off == p_scb->frag_org_len)
+        {
+            p_payload = p_scb->p_media_buf;
+
+            /* media header */
+            AVDT_MSG_PRS_OCTET1(p_payload, o_v, o_p, o_x, o_cc);
+            AVDT_MSG_PRS_M_PT(p_payload, m_pt, marker);
+            BE_STREAM_TO_UINT16(seq, p_payload);
+            BE_STREAM_TO_UINT32(time_stamp, p_payload);
+            BE_STREAM_TO_UINT32(ssrc, p_payload);
+
+            UNUSED(o_v);
+            UNUSED(ssrc);
+
+            /* skip over any csrc's in packet */
+            p_payload += o_cc * 4;
+
+            /* check for and skip over extension header */
+            if (o_x)
+            {
+                if(p_scb->p_media_buf + p_scb->frag_off - p_payload < 4)
+                {
+                    AVDT_TRACE_WARNING("length check frag_off:%d p_media_buf:%d p_payload:%d",
+                        p_scb->frag_off, p_scb->p_media_buf, p_payload);
+                    break;/* length check */
+                }
+                p_payload += 2;
+                BE_STREAM_TO_UINT16(ex_len, p_payload);
+                p_payload += ex_len * 4;
+            }
+
+            if(p_payload >= p_scb->p_media_buf + p_scb->frag_off)
+            {
+                AVDT_TRACE_WARNING("length check2 frag_off:%d p_media_buf:%d p_payload:%d",
+                    p_scb->frag_off, p_scb->p_media_buf, p_payload);
+                break;/* length check */
+            }
+
+            /* adjust length for any padding at end of packet */
+            if (o_p)
+            {
+                /* padding length in last byte of packet */
+                pad_len =  *(p_scb->p_media_buf + p_scb->frag_off - 1);
+            }
+            else
+                pad_len =  0;
+            /* payload length */
+            payload_len = (UINT32)(p_scb->p_media_buf + p_scb->frag_off - pad_len - p_payload);
+
+            AVDT_TRACE_DEBUG("Received last fragment header=%d len=%d",
+                p_payload - p_scb->p_media_buf,payload_len);
+
+            /* send total media packet up */
+            if (p_scb->cs.p_media_cback != NULL)
+            {
+                (*p_scb->cs.p_media_cback)(avdt_scb_to_hdl(p_scb), p_payload,
+                                           payload_len, time_stamp, seq, m_pt, marker);
+            }
+        }
+    } /* while(p < p_end) */
+
+    if(p < p_end)
+    {
+        AVDT_TRACE_WARNING("*** Got bad media packet");
+    }
+    osi_free_and_reset((void **)&p_data->p_pkt);
+}
+#endif
+
+/*******************************************************************************
+**
+** Function         avdt_scb_hdl_pkt
+**
+** Description
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_hdl_pkt(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
+{
+#if AVDT_REPORTING == TRUE
+    UINT8 *p;
+#endif
+
+#if AVDT_MULTIPLEXING == TRUE
+    /* select right function in dependance of is fragmentation supported or not */
+    if( 0 != (p_scb->curr_cfg.psc_mask & AVDT_PSC_MUX))
+    {
+        avdt_scb_hdl_pkt_frag(p_scb, p_data);
+    }
+    else
+#endif
+#if AVDT_REPORTING == TRUE
+    if(p_data->p_pkt->layer_specific == AVDT_CHAN_REPORT)
+    {
+        p = (UINT8 *)(p_data->p_pkt + 1) + p_data->p_pkt->offset;
+        avdt_scb_hdl_report(p_scb, p, p_data->p_pkt->len);
+        osi_free_and_reset((void **)&p_data->p_pkt);
+    }
+    else
+#endif
+        avdt_scb_hdl_pkt_no_frag(p_scb, p_data);
+}
+
+/*******************************************************************************
+**
+** Function         avdt_scb_drop_pkt
+**
+** Description      Drop an incoming media packet.  This function is called if
+**                  a media packet is received in any state besides streaming.
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_drop_pkt(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
+{
+    UNUSED(p_scb);
+
+    AVDT_TRACE_ERROR("%s dropped incoming media packet", __func__);
+    osi_free_and_reset((void **)&p_data->p_pkt);
+}
+
+/*******************************************************************************
+**
+** Function         avdt_scb_hdl_reconfig_cmd
+**
+** Description      This function calls the application callback function
+**                  with a reconfiguration indication.
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_hdl_reconfig_cmd(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
+{
+    /* if command not supported */
+    if (p_scb->cs.nsc_mask & AVDT_NSC_RECONFIG)
+    {
+        /* send reject */
+        p_data->msg.hdr.err_code = AVDT_ERR_NSC;
+        p_data->msg.hdr.err_param = 0;
+        avdt_scb_event(p_scb, AVDT_SCB_API_RECONFIG_RSP_EVT, p_data);
+    }
+    else
+    {
+        /* store requested configuration */
+        memcpy(&p_scb->req_cfg, p_data->msg.reconfig_cmd.p_cfg, sizeof(tAVDT_CFG));
+
+        /* call application callback */
+        (*p_scb->cs.p_ctrl_cback)(avdt_scb_to_hdl(p_scb),
+                                  NULL,
+                                  AVDT_RECONFIG_IND_EVT,
+                                  (tAVDT_CTRL *) &p_data->msg.reconfig_cmd);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         avdt_scb_hdl_reconfig_rsp
+**
+** Description      This function calls the application callback function
+**                  with a reconfiguration confirm.
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_hdl_reconfig_rsp(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
+{
+    if (p_data->msg.hdr.err_code == 0)
+    {
+        /* store new configuration */
+        if (p_scb->req_cfg.num_codec > 0)
+        {
+            p_scb->curr_cfg.num_codec = p_scb->req_cfg.num_codec;
+            memcpy(p_scb->curr_cfg.codec_info, p_scb->req_cfg.codec_info, AVDT_CODEC_SIZE);
+        }
+        if (p_scb->req_cfg.num_protect > 0)
+        {
+            p_scb->curr_cfg.num_protect = p_scb->req_cfg.num_protect;
+            memcpy(p_scb->curr_cfg.protect_info, p_scb->req_cfg.protect_info, AVDT_PROTECT_SIZE);
+        }
+    }
+
+    p_data->msg.svccap.p_cfg = &p_scb->curr_cfg;
+
+    /* call application callback */
+    (*p_scb->cs.p_ctrl_cback)(avdt_scb_to_hdl(p_scb),
+                              NULL,
+                              AVDT_RECONFIG_CFM_EVT,
+                              (tAVDT_CTRL *) &p_data->msg.svccap);
+}
+
+/*******************************************************************************
+**
+** Function         avdt_scb_hdl_security_cmd
+**
+** Description      This function calls the application callback with a
+**                  security indication.
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_hdl_security_cmd(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
+{
+    /* if command not supported */
+    if (p_scb->cs.nsc_mask & AVDT_NSC_SECURITY)
+    {
+        /* send reject */
+        p_data->msg.hdr.err_code = AVDT_ERR_NSC;
+        avdt_scb_event(p_scb, AVDT_SCB_API_SECURITY_RSP_EVT, p_data);
+    }
+    else
+    {
+        /* call application callback */
+        (*p_scb->cs.p_ctrl_cback)(avdt_scb_to_hdl(p_scb),
+                                  NULL,
+                                  AVDT_SECURITY_IND_EVT,
+                                  (tAVDT_CTRL *) &p_data->msg.security_cmd);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         avdt_scb_hdl_security_rsp
+**
+** Description      This function calls the application callback with a
+**                  security confirm.
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_hdl_security_rsp(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
+{
+    /* call application callback */
+    (*p_scb->cs.p_ctrl_cback)(avdt_scb_to_hdl(p_scb),
+                              NULL,
+                              AVDT_SECURITY_CFM_EVT,
+                              (tAVDT_CTRL *) &p_data->msg.security_cmd);
+}
+
+/*******************************************************************************
+**
+** Function         avdt_scb_hdl_setconfig_cmd
+**
+** Description      This function marks the SCB as in use and copies the
+**                  configuration and peer SEID to the SCB.  It then calls
+**                  the application callback with a configuration indication.
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_hdl_setconfig_cmd(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
+{
+    tAVDT_CFG *p_cfg;
+
+    if (!p_scb->in_use)
+    {
+        p_cfg = p_data->msg.config_cmd.p_cfg;
+        if(p_scb->cs.cfg.codec_info[AVDT_CODEC_TYPE_INDEX] == p_cfg->codec_info[AVDT_CODEC_TYPE_INDEX])
+        {
+            /* set sep as in use */
+            p_scb->in_use = TRUE;
+
+            /* copy info to scb */
+            p_scb->p_ccb = avdt_ccb_by_idx(p_data->msg.config_cmd.hdr.ccb_idx);
+            p_scb->peer_seid = p_data->msg.config_cmd.int_seid;
+            memcpy(&p_scb->req_cfg, p_cfg, sizeof(tAVDT_CFG));
+            /* call app callback */
+            (*p_scb->cs.p_ctrl_cback)(avdt_scb_to_hdl(p_scb), /* handle of scb- which is same as sep handle of bta_av_cb.p_scb*/
+                                      p_scb->p_ccb ? p_scb->p_ccb->peer_addr : NULL,
+                                      AVDT_CONFIG_IND_EVT,
+                                      (tAVDT_CTRL *) &p_data->msg.config_cmd);
+        }
+        else
+        {
+            p_data->msg.hdr.err_code = AVDT_ERR_UNSUP_CFG;
+            p_data->msg.hdr.err_param = 0;
+            avdt_msg_send_rej(avdt_ccb_by_idx(p_data->msg.hdr.ccb_idx),
+                              p_data->msg.hdr.sig_id, &p_data->msg);
+        }
+    }
+    else
+    {
+        avdt_scb_rej_in_use(p_scb, p_data);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         avdt_scb_hdl_setconfig_rej
+**
+** Description      This function marks the SCB as not in use and calls the
+**                  application callback with an open confirm indicating failure.
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_hdl_setconfig_rej(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
+{
+    /* clear scb variables */
+    avdt_scb_clr_vars(p_scb, p_data);
+
+    /* tell ccb we're done with signaling channel */
+    avdt_ccb_event(avdt_ccb_by_idx(p_data->msg.hdr.ccb_idx), AVDT_CCB_UL_CLOSE_EVT, NULL);
+
+    /* call application callback */
+    (*p_scb->cs.p_ctrl_cback)(avdt_scb_to_hdl(p_scb),
+                              NULL,
+                              AVDT_OPEN_CFM_EVT,
+                              (tAVDT_CTRL *) &p_data->msg.hdr);
+}
+
+/*******************************************************************************
+**
+** Function         avdt_scb_hdl_setconfig_rsp
+**
+** Description      This function sends the SCB an AVDT_SCB_API_OPEN_REQ_EVT
+**                  to initiate sending of an open command message.
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_hdl_setconfig_rsp(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
+{
+    tAVDT_EVT_HDR   single;
+    UNUSED(p_data);
+
+    if (p_scb->p_ccb != NULL)
+    {
+        /* save configuration */
+        memcpy(&p_scb->curr_cfg, &p_scb->req_cfg, sizeof(tAVDT_CFG));
+
+        /* initiate open */
+        single.seid = p_scb->peer_seid;
+        avdt_scb_event(p_scb, AVDT_SCB_API_OPEN_REQ_EVT, (tAVDT_SCB_EVT *) &single);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         avdt_scb_hdl_start_cmd
+**
+** Description      This function calls the application callback with a
+**                  start indication.
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_hdl_start_cmd(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
+{
+    UNUSED(p_data);
+
+    (*p_scb->cs.p_ctrl_cback)(avdt_scb_to_hdl(p_scb),
+                              p_scb->p_ccb ? p_scb->p_ccb->peer_addr : NULL,
+                              AVDT_START_IND_EVT,
+                              NULL);
+}
+
+/*******************************************************************************
+**
+** Function         avdt_scb_hdl_start_rsp
+**
+** Description      This function calls the application callback with a
+**                  start confirm.
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_hdl_start_rsp(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
+{
+    (*p_scb->cs.p_ctrl_cback)(avdt_scb_to_hdl(p_scb),
+                              p_scb->p_ccb ? p_scb->p_ccb->peer_addr : NULL,
+                              AVDT_START_CFM_EVT,
+                              (tAVDT_CTRL *) &p_data->msg.hdr);
+}
+
+/*******************************************************************************
+**
+** Function         avdt_scb_hdl_suspend_cmd
+**
+** Description      This function calls the application callback with a suspend
+**                  indication.
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_hdl_suspend_cmd(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
+{
+    UNUSED(p_data);
+
+    (*p_scb->cs.p_ctrl_cback)(avdt_scb_to_hdl(p_scb),
+                              p_scb->p_ccb ? p_scb->p_ccb->peer_addr : NULL,
+                              AVDT_SUSPEND_IND_EVT,
+                              NULL);
+}
+
+/*******************************************************************************
+**
+** Function         avdt_scb_hdl_suspend_rsp
+**
+** Description      This function calls the application callback with a suspend
+**                  confirm.
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_hdl_suspend_rsp(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
+{
+    (*p_scb->cs.p_ctrl_cback)(avdt_scb_to_hdl(p_scb),
+                              p_scb->p_ccb ? p_scb->p_ccb->peer_addr : NULL,
+                              AVDT_SUSPEND_CFM_EVT,
+                              (tAVDT_CTRL *) &p_data->msg.hdr);
+}
+
+/*******************************************************************************
+**
+** Function         avdt_scb_hdl_tc_close
+**
+** Description      This function is called when the transport channel is
+**                  closed.  It marks the SCB as not in use and
+**                  initializes certain SCB parameters.  It then sends
+**                  an AVDT_CCB_UL_CLOSE_EVT to the CCB if the SCB
+**                  initiated the close.  It then checks to see if the SCB
+**                  is to be removed.  If it is it deallocates the SCB.  Finally,
+**                  it calls the application callback with a close indication.
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_hdl_tc_close(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
+{
+    UINT8               hdl = avdt_scb_to_hdl(p_scb);
+    tAVDT_CTRL_CBACK    *p_ctrl_cback = p_scb->cs.p_ctrl_cback;
+    tAVDT_CTRL          avdt_ctrl;
+    UINT8               event;
+    tAVDT_CCB           *p_ccb = p_scb->p_ccb;
+    BD_ADDR remote_addr;
+
+
+    memcpy (remote_addr, p_ccb->peer_addr, BD_ADDR_LEN);
+
+    /* set up hdr */
+    avdt_ctrl.hdr.err_code = p_scb->close_code;
+
+    /* clear sep variables */
+    avdt_scb_clr_vars(p_scb, p_data);
+    p_scb->media_seq = 0;
+    p_scb->cong = FALSE;
+
+    /* free pkt we're holding, if any */
+    osi_free_and_reset((void **)&p_scb->p_pkt);
+
+    alarm_cancel(p_scb->transport_channel_timer);
+
+    if ((p_scb->role == AVDT_CLOSE_INT) || (p_scb->role == AVDT_OPEN_INT))
+    {
+        /* tell ccb we're done with signaling channel */
+        avdt_ccb_event(p_ccb, AVDT_CCB_UL_CLOSE_EVT, NULL);
+    }
+    event = (p_scb->role == AVDT_CLOSE_INT) ? AVDT_CLOSE_CFM_EVT : AVDT_CLOSE_IND_EVT;
+    p_scb->role = AVDT_CLOSE_ACP;
+
+    if (p_scb->remove)
+    {
+        avdt_scb_dealloc(p_scb, NULL);
+    }
+
+    /* call app callback */
+    (*p_ctrl_cback)(hdl, remote_addr, event, &avdt_ctrl);
+}
+
+/*******************************************************************************
+**
+** Function         avdt_scb_snd_delay_rpt_req
+**
+** Description      This function calls the application callback with a delay
+**                  report.
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_snd_delay_rpt_req (tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
+{
+    avdt_msg_send_cmd(p_scb->p_ccb, p_scb, AVDT_SIG_DELAY_RPT, (tAVDT_MSG *) &p_data->apidelay);
+}
+
+/*******************************************************************************
+**
+** Function         avdt_scb_hdl_delay_rpt_cmd
+**
+** Description      This function calls the application callback with a delay
+**                  report.
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_hdl_delay_rpt_cmd (tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
+{
+    (*p_scb->cs.p_ctrl_cback)(avdt_scb_to_hdl(p_scb),
+                              p_scb->p_ccb ? p_scb->p_ccb->peer_addr : NULL,
+                              AVDT_DELAY_REPORT_EVT,
+                              (tAVDT_CTRL *) &p_data->msg.hdr);
+
+    if (p_scb->p_ccb)
+        avdt_msg_send_rsp(p_scb->p_ccb, AVDT_SIG_DELAY_RPT, &p_data->msg);
+    else
+        avdt_scb_rej_not_in_use(p_scb, p_data);
+}
+
+/*******************************************************************************
+**
+** Function         avdt_scb_hdl_delay_rpt_rsp
+**
+** Description      This function calls the application callback with a delay
+**                  report.
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_hdl_delay_rpt_rsp (tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
+{
+    (*p_scb->cs.p_ctrl_cback)(avdt_scb_to_hdl(p_scb),
+                              p_scb->p_ccb ? p_scb->p_ccb->peer_addr : NULL,
+                              AVDT_DELAY_REPORT_CFM_EVT,
+                              (tAVDT_CTRL *) &p_data->msg.hdr);
+}
+
+#if AVDT_REPORTING == TRUE
+/*******************************************************************************
+**
+** Function         avdt_scb_hdl_tc_close_sto
+**
+** Description      This function is called when a channel is closed in OPEN
+**                  state.  Check the channel type and process accordingly.
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_hdl_tc_close_sto(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
+{
+    tAVDT_CTRL          avdt_ctrl;
+    /* AVDT_CHAN_SIG does not visit this action */
+    if(p_data && p_data->close.type != AVDT_CHAN_MEDIA)
+    {
+        /* it's reporting or recovery channel,
+         * the channel close in open state means the peer does not support it */
+        if(p_data->close.old_tc_state == AVDT_AD_ST_OPEN)
+        {
+            avdt_ctrl.hdr.err_code = 0;
+            avdt_ctrl.hdr.err_param = 0;
+            /* call app callback */
+            (*p_scb->cs.p_ctrl_cback)(avdt_scb_to_hdl(p_scb),
+                                      p_scb->p_ccb ? p_scb->p_ccb->peer_addr : NULL,
+                                      AVDT_REPORT_DISCONN_EVT, &avdt_ctrl);
+        }
+    }
+    else
+    {
+        /* must be in OPEN state. need to go back to idle */
+        avdt_scb_event(p_scb, AVDT_SCB_MSG_ABORT_RSP_EVT, NULL);
+        avdt_scb_hdl_tc_close(p_scb, p_data);
+    }
+}
+#endif
+
+/*******************************************************************************
+**
+** Function         avdt_scb_hdl_tc_open
+**
+** Description      This function is called when the transport channel is
+**                  opened while in the opening state.  It calls the
+**                  application callback with an open indication or open
+**                  confirm depending on who initiated the open procedure.
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_hdl_tc_open(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
+{
+    UINT8   event;
+#if AVDT_REPORTING == TRUE
+    UINT8   role;
+#endif
+
+    alarm_cancel(p_scb->transport_channel_timer);
+
+    event = (p_scb->role == AVDT_OPEN_INT) ? AVDT_OPEN_CFM_EVT : AVDT_OPEN_IND_EVT;
+    p_data->open.hdr.err_code = 0;
+
+    AVDT_TRACE_DEBUG("psc_mask: cfg: 0x%x, req:0x%x, cur: 0x%x",
+        p_scb->cs.cfg.psc_mask, p_scb->req_cfg.psc_mask, p_scb->curr_cfg.psc_mask);
+#if AVDT_REPORTING == TRUE
+    if(p_scb->curr_cfg.psc_mask & AVDT_PSC_REPORT)
+    {
+        /* open the reporting channel, if both devices support it */
+        role = (p_scb->role == AVDT_OPEN_INT) ? AVDT_INT : AVDT_ACP;
+        avdt_ad_open_req(AVDT_CHAN_REPORT, p_scb->p_ccb, p_scb, role);
+    }
+#endif
+
+    /* call app callback */
+    (*p_scb->cs.p_ctrl_cback)(avdt_scb_to_hdl(p_scb),
+                              p_scb->p_ccb ? p_scb->p_ccb->peer_addr : NULL,
+                              event,
+                              (tAVDT_CTRL *) &p_data->open);
+}
+
+#if AVDT_REPORTING == TRUE
+/*******************************************************************************
+**
+** Function         avdt_scb_hdl_tc_open_sto
+**
+** Description      This function is called when the transport channel is
+**                  opened while in the opening state.  It calls the
+**                  application callback with an open indication or open
+**                  confirm depending on who initiated the open procedure.
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_hdl_tc_open_sto(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
+{
+    tAVDT_CTRL          avdt_ctrl;
+    /* open reporting channel here, when it is implemented */
+
+    /* call app callback */
+    if(p_data->open.hdr.err_code == AVDT_CHAN_REPORT)
+    {
+        avdt_ctrl.hdr.err_code = 0;
+        avdt_ctrl.hdr.err_param = 1;
+        (*p_scb->cs.p_ctrl_cback)(avdt_scb_to_hdl(p_scb),
+                              p_scb->p_ccb ? p_scb->p_ccb->peer_addr : NULL,
+                              AVDT_REPORT_CONN_EVT, &avdt_ctrl);
+    }
+}
+#endif
+
+/*******************************************************************************
+**
+** Function         avdt_scb_hdl_write_req_no_frag
+**
+** Description      This function frees the media packet currently stored in
+**                  the SCB, if any.  Then it builds a new media packet from
+**                  with the passed in buffer and stores it in the SCB.
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_hdl_write_req_no_frag(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
+{
+    UINT8   *p;
+    UINT32  ssrc;
+
+    /* free packet we're holding, if any; to be replaced with new */
+    if (p_scb->p_pkt != NULL) {
+        /* this shouldn't be happening */
+        AVDT_TRACE_WARNING("Dropped media packet; congested");
+    }
+    osi_free_and_reset((void **)&p_scb->p_pkt);
+
+    /* build a media packet */
+    /* Add RTP header if required */
+    if ( !(p_data->apiwrite.opt & AVDT_DATA_OPT_NO_RTP) )
+    {
+        ssrc = avdt_scb_gen_ssrc(p_scb);
+
+        p_data->apiwrite.p_buf->len += AVDT_MEDIA_HDR_SIZE;
+        p_data->apiwrite.p_buf->offset -= AVDT_MEDIA_HDR_SIZE;
+        p_scb->media_seq++;
+        p = (UINT8 *)(p_data->apiwrite.p_buf + 1) + p_data->apiwrite.p_buf->offset;
+
+        UINT8_TO_BE_STREAM(p, AVDT_MEDIA_OCTET1);
+        UINT8_TO_BE_STREAM(p, p_data->apiwrite.m_pt);
+        UINT16_TO_BE_STREAM(p, p_scb->media_seq);
+        UINT32_TO_BE_STREAM(p, p_data->apiwrite.time_stamp);
+        UINT32_TO_BE_STREAM(p, ssrc);
+    }
+
+    /* store it */
+    p_scb->p_pkt = p_data->apiwrite.p_buf;
+}
+
+#if AVDT_MULTIPLEXING == TRUE
+/*******************************************************************************
+**
+** Function         avdt_scb_hdl_write_req_frag
+**
+** Description      This function builds a new fragments of media packet from
+**                  the passed in buffers and stores them in the SCB.
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_hdl_write_req_frag(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
+{
+    UINT8   *p;
+    UINT32  ssrc;
+
+    /* free fragments we're holding, if any; it shouldn't happen */
+    if (!fixed_queue_is_empty(p_scb->frag_q))
+    {
+        /* this shouldn't be happening */
+        AVDT_TRACE_WARNING("*** Dropped media packet; congested");
+        BT_HDR *p_frag;
+        while ((p_frag = (BT_HDR*)fixed_queue_try_dequeue(p_scb->frag_q)) != NULL)
+             osi_free(p_frag);
+    }
+
+    /* build a media fragments */
+    p_scb->frag_off = p_data->apiwrite.data_len;
+    p_scb->p_next_frag = p_data->apiwrite.p_data;
+
+    ssrc = avdt_scb_gen_ssrc(p_scb);
+
+    if (! fixed_queue_is_empty(p_scb->frag_q)) {
+        list_t *list = fixed_queue_get_list(p_scb->frag_q);
+        const list_node_t *node = list_begin(list);
+        if (node != list_end(list)) {
+            BT_HDR *p_frag = (BT_HDR *)list_node(node);
+            node = list_next(node);
+
+            /* get first packet */
+            /* posit on Adaptation Layer header */
+            p_frag->len += AVDT_AL_HDR_SIZE + AVDT_MEDIA_HDR_SIZE;
+            p_frag->offset -= AVDT_AL_HDR_SIZE + AVDT_MEDIA_HDR_SIZE;
+            p = (UINT8 *)(p_frag + 1) + p_frag->offset;
+
+            /* Adaptation Layer header */
+            /* TSID, no-fragment bit and coding of length (in 2 length octets
+             * following)
+             */
+            *p++ = (p_scb->curr_cfg.mux_tsid_media<<3) | AVDT_ALH_LCODE_16BIT;
+
+            /* length of all remaining transport packet */
+            UINT16_TO_BE_STREAM(p, p_frag->layer_specific + AVDT_MEDIA_HDR_SIZE );
+            /* media header */
+            UINT8_TO_BE_STREAM(p, AVDT_MEDIA_OCTET1);
+            UINT8_TO_BE_STREAM(p, p_data->apiwrite.m_pt);
+            UINT16_TO_BE_STREAM(p, p_scb->media_seq);
+            UINT32_TO_BE_STREAM(p, p_data->apiwrite.time_stamp);
+            UINT32_TO_BE_STREAM(p, ssrc);
+            p_scb->media_seq++;
+        }
+
+        for ( ; node != list_end(list); node = list_next(node)) {
+            BT_HDR *p_frag = (BT_HDR *)list_node(node);
+
+            /* posit on Adaptation Layer header */
+            p_frag->len += AVDT_AL_HDR_SIZE;
+            p_frag->offset -= AVDT_AL_HDR_SIZE;
+            p = (UINT8 *)(p_frag + 1) + p_frag->offset;
+            /* Adaptation Layer header */
+            /* TSID, fragment bit and coding of length (in 2 length octets
+             * following)
+             */
+            *p++ = (p_scb->curr_cfg.mux_tsid_media << 3) |
+                (AVDT_ALH_FRAG_MASK | AVDT_ALH_LCODE_16BIT);
+
+            /* length of all remaining transport packet */
+            UINT16_TO_BE_STREAM(p, p_frag->layer_specific);
+        }
+    }
+}
+#endif
+
+
+/*******************************************************************************
+**
+** Function         avdt_scb_hdl_write_req
+**
+** Description      This function calls one of the two versions of building functions
+**                  for case with and without fragmentation
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_hdl_write_req(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
+{
+#if AVDT_MULTIPLEXING == TRUE
+    if (fixed_queue_is_empty(p_scb->frag_q))
+#endif
+        avdt_scb_hdl_write_req_no_frag(p_scb, p_data);
+#if AVDT_MULTIPLEXING == TRUE
+    else
+        avdt_scb_hdl_write_req_frag(p_scb, p_data);
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         avdt_scb_snd_abort_req
+**
+** Description      This function sends an abort command message.
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_snd_abort_req(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
+{
+    tAVDT_EVT_HDR   hdr;
+    UNUSED(p_data);
+
+    if (p_scb->p_ccb != NULL)
+    {
+        p_scb->role = AVDT_CLOSE_INT;
+
+        hdr.seid = p_scb->peer_seid;
+
+        avdt_msg_send_cmd(p_scb->p_ccb, p_scb, AVDT_SIG_ABORT, (tAVDT_MSG *) &hdr);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         avdt_scb_snd_abort_rsp
+**
+** Description      This function sends an abort response message.
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_snd_abort_rsp(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
+{
+    UNUSED(p_scb);
+
+    avdt_msg_send_rsp(avdt_ccb_by_idx(p_data->msg.hdr.ccb_idx), AVDT_SIG_ABORT,
+                      &p_data->msg);
+}
+
+/*******************************************************************************
+**
+** Function         avdt_scb_snd_close_req
+**
+** Description      This function sends a close command message.
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_snd_close_req(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
+{
+    tAVDT_EVT_HDR   hdr;
+    UNUSED(p_data);
+
+    p_scb->role = AVDT_CLOSE_INT;
+
+    hdr.seid = p_scb->peer_seid;
+
+    avdt_msg_send_cmd(p_scb->p_ccb, p_scb, AVDT_SIG_CLOSE, (tAVDT_MSG *) &hdr);
+}
+
+/*******************************************************************************
+**
+** Function         avdt_scb_snd_stream_close
+**
+** Description      This function sends a close command message.
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_snd_stream_close(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
+{
+#if AVDT_MULTIPLEXING == TRUE
+    AVDT_TRACE_WARNING("%s c:%d, off:%d", __func__,
+        fixed_queue_length(p_scb->frag_q), p_scb->frag_off);
+
+    /* clean fragments queue */
+    BT_HDR *p_frag;
+    while ((p_frag = (BT_HDR*)fixed_queue_try_dequeue(p_scb->frag_q)) != NULL)
+        osi_free(p_frag);
+
+    p_scb->frag_off = 0;
+#endif
+    osi_free_and_reset((void **)&p_scb->p_pkt);
+
+    avdt_scb_snd_close_req(p_scb, p_data);
+}
+
+/*******************************************************************************
+**
+** Function         avdt_scb_snd_close_rsp
+**
+** Description      This function sends a close response message.
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_snd_close_rsp(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
+{
+    avdt_msg_send_rsp(p_scb->p_ccb, AVDT_SIG_CLOSE, &p_data->msg);
+}
+
+/*******************************************************************************
+**
+** Function         avdt_scb_snd_getconfig_req
+**
+** Description      This function sends a get configuration command message.
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_snd_getconfig_req(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
+{
+    tAVDT_EVT_HDR   hdr;
+    UNUSED(p_data);
+
+    hdr.seid = p_scb->peer_seid;
+
+    avdt_msg_send_cmd(p_scb->p_ccb, p_scb, AVDT_SIG_GETCONFIG, (tAVDT_MSG *) &hdr);
+}
+
+/*******************************************************************************
+**
+** Function         avdt_scb_snd_getconfig_rsp
+**
+** Description      This function sends a get configuration response message.
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_snd_getconfig_rsp(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
+{
+    avdt_msg_send_rsp(p_scb->p_ccb, AVDT_SIG_GETCONFIG, &p_data->msg);
+}
+
+/*******************************************************************************
+**
+** Function         avdt_scb_snd_open_req
+**
+** Description      This function sends an open command message.
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_snd_open_req(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
+{
+    tAVDT_EVT_HDR   hdr;
+    UNUSED(p_data);
+
+    hdr.seid = p_scb->peer_seid;
+
+    avdt_msg_send_cmd(p_scb->p_ccb, p_scb, AVDT_SIG_OPEN, (tAVDT_MSG *) &hdr);
+}
+
+/*******************************************************************************
+**
+** Function         avdt_scb_snd_open_rsp
+**
+** Description      This function sends an open response message.  It also
+**                  calls avdt_ad_open_req() to accept a transport channel
+**                  connection.
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_snd_open_rsp(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
+{
+    /* notify adaption that we're waiting for transport channel open */
+    p_scb->role = AVDT_OPEN_ACP;
+    avdt_ad_open_req(AVDT_CHAN_MEDIA, p_scb->p_ccb, p_scb, AVDT_ACP);
+
+    /* send response */
+    avdt_msg_send_rsp(p_scb->p_ccb, AVDT_SIG_OPEN, &p_data->msg);
+
+    alarm_set_on_queue(p_scb->transport_channel_timer,
+                       AVDT_SCB_TC_CONN_TIMEOUT_MS,
+                       avdt_scb_transport_channel_timer_timeout, p_scb,
+                       btu_general_alarm_queue);
+}
+
+/*******************************************************************************
+**
+** Function         avdt_scb_snd_reconfig_req
+**
+** Description      This function stores the configuration parameters in the
+**                  SCB and sends a reconfiguration command message.
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_snd_reconfig_req(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
+{
+    memcpy(&p_scb->req_cfg, p_data->msg.config_cmd.p_cfg, sizeof(tAVDT_CFG));
+    p_data->msg.hdr.seid = p_scb->peer_seid;
+    avdt_msg_send_cmd(p_scb->p_ccb, p_scb, AVDT_SIG_RECONFIG, &p_data->msg);
+}
+
+/*******************************************************************************
+**
+** Function         avdt_scb_snd_reconfig_rsp
+**
+** Description      This function stores the configuration parameters in the
+**                  SCB and sends a reconfiguration response message.
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_snd_reconfig_rsp(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
+{
+    if (p_data->msg.hdr.err_code == 0)
+    {
+        /* store new configuration */
+        if (p_scb->req_cfg.num_codec > 0)
+        {
+            p_scb->curr_cfg.num_codec = p_scb->req_cfg.num_codec;
+            memcpy(p_scb->curr_cfg.codec_info, p_scb->req_cfg.codec_info, AVDT_CODEC_SIZE);
+        }
+        if (p_scb->req_cfg.num_protect > 0)
+        {
+            p_scb->curr_cfg.num_protect = p_scb->req_cfg.num_protect;
+            memcpy(p_scb->curr_cfg.protect_info, p_scb->req_cfg.protect_info, AVDT_PROTECT_SIZE);
+        }
+
+        /* send response */
+        avdt_msg_send_rsp(p_scb->p_ccb, AVDT_SIG_RECONFIG, &p_data->msg);
+    }
+    else
+    {
+        /* send reject */
+        avdt_msg_send_rej(p_scb->p_ccb, AVDT_SIG_RECONFIG, &p_data->msg);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         avdt_scb_snd_security_req
+**
+** Description      This function sends a security command message.
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_snd_security_req(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
+{
+    p_data->msg.hdr.seid = p_scb->peer_seid;
+    avdt_msg_send_cmd(p_scb->p_ccb, p_scb, AVDT_SIG_SECURITY, &p_data->msg);
+}
+
+/*******************************************************************************
+**
+** Function         avdt_scb_snd_security_rsp
+**
+** Description      This function sends a security response message.
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_snd_security_rsp(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
+{
+    if (p_data->msg.hdr.err_code == 0)
+    {
+        avdt_msg_send_rsp(p_scb->p_ccb, AVDT_SIG_SECURITY, &p_data->msg);
+    }
+    else
+    {
+        avdt_msg_send_rej(p_scb->p_ccb, AVDT_SIG_SECURITY, &p_data->msg);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         avdt_scb_snd_setconfig_rej
+**
+** Description      This function marks the SCB as not in use and sends a
+**                  set configuration reject message.
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_snd_setconfig_rej(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
+{
+    if (p_scb->p_ccb != NULL)
+    {
+        avdt_msg_send_rej(p_scb->p_ccb, AVDT_SIG_SETCONFIG, &p_data->msg);
+
+        /* clear scb variables */
+        avdt_scb_clr_vars(p_scb, p_data);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         avdt_scb_snd_setconfig_req
+**
+** Description      This function marks the SCB as in use and copies the
+**                  configuration parameters to the SCB.  Then the function
+**                  sends a set configuration command message and initiates
+**                  opening of the signaling channel.
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_snd_setconfig_req(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
+{
+    tAVDT_CFG *p_req, *p_cfg;
+
+    /* copy API parameters to scb, set scb as in use */
+    p_scb->in_use = TRUE;
+    p_scb->p_ccb = avdt_ccb_by_idx(p_data->msg.config_cmd.hdr.ccb_idx);
+    p_scb->peer_seid = p_data->msg.config_cmd.hdr.seid;
+    p_req = p_data->msg.config_cmd.p_cfg;
+    p_cfg = &p_scb->cs.cfg;
+#if AVDT_MULTIPLEXING == TRUE
+    p_req->mux_tsid_media = p_cfg->mux_tsid_media;
+    p_req->mux_tcid_media = p_cfg->mux_tcid_media;
+    if(p_req->psc_mask & AVDT_PSC_REPORT)
+    {
+        p_req->mux_tsid_report = p_cfg->mux_tsid_report;
+        p_req->mux_tcid_report = p_cfg->mux_tcid_report;
+    }
+#endif
+    memcpy(&p_scb->req_cfg, p_data->msg.config_cmd.p_cfg, sizeof(tAVDT_CFG));
+
+    avdt_msg_send_cmd(p_scb->p_ccb, p_scb, AVDT_SIG_SETCONFIG, &p_data->msg);
+
+    /* tell ccb to open channel */
+    avdt_ccb_event(p_scb->p_ccb, AVDT_CCB_UL_OPEN_EVT, NULL);
+}
+
+/*******************************************************************************
+**
+** Function         avdt_scb_snd_setconfig_rsp
+**
+** Description      This function copies the requested configuration into the
+**                  current configuration and sends a set configuration
+**                  response message.
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_snd_setconfig_rsp(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
+{
+    if (p_scb->p_ccb != NULL)
+    {
+        memcpy(&p_scb->curr_cfg, &p_scb->req_cfg, sizeof(tAVDT_CFG));
+
+        avdt_msg_send_rsp(p_scb->p_ccb, AVDT_SIG_SETCONFIG, &p_data->msg);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         avdt_scb_snd_tc_close
+**
+** Description      This function calls avdt_ad_close_req() to close the
+**                  transport channel for this SCB.
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_snd_tc_close(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
+{
+    UNUSED(p_data);
+
+#if AVDT_REPORTING == TRUE
+    if(p_scb->curr_cfg.psc_mask & AVDT_PSC_REPORT)
+        avdt_ad_close_req(AVDT_CHAN_REPORT, p_scb->p_ccb, p_scb);
+#endif
+    avdt_ad_close_req(AVDT_CHAN_MEDIA, p_scb->p_ccb, p_scb);
+}
+
+/*******************************************************************************
+**
+** Function         avdt_scb_cb_err
+**
+** Description      This function calls the application callback function
+**                  indicating an error.
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_cb_err(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
+{
+    tAVDT_CTRL          avdt_ctrl;
+    UNUSED(p_data);
+
+    /* set error code and parameter */
+    avdt_ctrl.hdr.err_code = AVDT_ERR_BAD_STATE;
+    avdt_ctrl.hdr.err_param = 0;
+
+    /* call callback, using lookup table to get callback event */
+    (*p_scb->cs.p_ctrl_cback)(avdt_scb_to_hdl(p_scb),
+                              NULL,
+                              avdt_scb_cback_evt[p_scb->curr_evt],
+                              &avdt_ctrl);
+}
+
+/*******************************************************************************
+**
+** Function         avdt_scb_cong_state
+**
+** Description      This function sets the congestion state of the SCB media
+**                  transport channel.
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_cong_state(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
+{
+    p_scb->cong = p_data->llcong;
+}
+
+/*******************************************************************************
+**
+** Function         avdt_scb_rej_state
+**
+** Description      This function sends a reject message to the peer indicating
+**                  incorrect state for the received command message.
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_rej_state(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
+{
+    UNUSED(p_scb);
+
+    p_data->msg.hdr.err_code = AVDT_ERR_BAD_STATE;
+    p_data->msg.hdr.err_param = 0;
+    avdt_msg_send_rej(avdt_ccb_by_idx(p_data->msg.hdr.ccb_idx),
+                      p_data->msg.hdr.sig_id, &p_data->msg);
+}
+
+/*******************************************************************************
+**
+** Function         avdt_scb_rej_in_use
+**
+** Description      This function sends a reject message to the peer indicating
+**                  the stream is in use.
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_rej_in_use(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
+{
+    UNUSED(p_scb);
+
+    p_data->msg.hdr.err_code = AVDT_ERR_IN_USE;
+    p_data->msg.hdr.err_param = 0;
+    avdt_msg_send_rej(avdt_ccb_by_idx(p_data->msg.hdr.ccb_idx),
+                      p_data->msg.hdr.sig_id, &p_data->msg);
+}
+
+/*******************************************************************************
+**
+** Function         avdt_scb_rej_not_in_use
+**
+** Description      This function sends a reject message to the peer indicating
+**                  the stream is in use.
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_rej_not_in_use(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
+{
+    UNUSED(p_scb);
+
+    p_data->msg.hdr.err_code = AVDT_ERR_NOT_IN_USE;
+    p_data->msg.hdr.err_param = 0;
+    avdt_msg_send_rej(avdt_ccb_by_idx(p_data->msg.hdr.ccb_idx),
+                      p_data->msg.hdr.sig_id, &p_data->msg);
+}
+
+/*******************************************************************************
+**
+** Function         avdt_scb_set_remove
+**
+** Description      This function marks an SCB to be removed.
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_set_remove(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
+{
+    UNUSED(p_data);
+
+    p_scb->remove = TRUE;
+}
+
+/*******************************************************************************
+**
+** Function         avdt_scb_free_pkt
+**
+** Description      This function frees the media packet passed in.
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_free_pkt(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
+{
+    tAVDT_CTRL      avdt_ctrl;
+
+    /* set error code and parameter */
+    avdt_ctrl.hdr.err_code = AVDT_ERR_BAD_STATE;
+    avdt_ctrl.hdr.err_param = 0;
+
+    /* p_buf can be NULL in case using of fragments queue frag_q */
+    osi_free_and_reset((void **)&p_data->apiwrite.p_buf);
+
+#if AVDT_MULTIPLEXING == TRUE
+    /* clean fragments queue */
+    BT_HDR          *p_frag;
+    while ((p_frag = (BT_HDR*)fixed_queue_try_dequeue(p_scb->frag_q)) != NULL)
+         osi_free(p_frag);
+#endif
+
+    AVDT_TRACE_WARNING("Dropped media packet");
+
+    /* we need to call callback to keep data flow going */
+    (*p_scb->cs.p_ctrl_cback)(avdt_scb_to_hdl(p_scb), NULL, AVDT_WRITE_CFM_EVT,
+                              &avdt_ctrl);
+}
+
+/*******************************************************************************
+**
+** Function         avdt_scb_clr_pkt
+**
+** Description      This function frees the media packet stored in the SCB.
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_clr_pkt(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
+{
+    tAVDT_CTRL      avdt_ctrl;
+    tAVDT_CCB       *p_ccb;
+    UINT8           tcid;
+    UINT16          lcid;
+    UNUSED(p_data);
+
+    /* set error code and parameter */
+    avdt_ctrl.hdr.err_code = AVDT_ERR_BAD_STATE;
+    avdt_ctrl.hdr.err_param = 0;
+    /* flush the media data queued at L2CAP */
+    if((p_ccb = p_scb->p_ccb) != NULL)
+    {
+        /* get tcid from type, scb */
+        tcid = avdt_ad_type_to_tcid(AVDT_CHAN_MEDIA, p_scb);
+
+        lcid = avdt_cb.ad.rt_tbl[avdt_ccb_to_idx(p_ccb)][tcid].lcid;
+        L2CA_FlushChannel (lcid, L2CAP_FLUSH_CHANS_ALL);
+    }
+
+    if (p_scb->p_pkt != NULL)
+    {
+        osi_free_and_reset((void **)&p_scb->p_pkt);
+
+        AVDT_TRACE_DEBUG("Dropped stored media packet");
+
+        /* we need to call callback to keep data flow going */
+        (*p_scb->cs.p_ctrl_cback)(avdt_scb_to_hdl(p_scb), NULL, AVDT_WRITE_CFM_EVT,
+                                  &avdt_ctrl);
+    }
+#if AVDT_MULTIPLEXING == TRUE
+    else if (!fixed_queue_is_empty(p_scb->frag_q))
+    {
+        AVDT_TRACE_DEBUG("Dropped fragments queue");
+        /* clean fragments queue */
+        BT_HDR *p_frag;
+        while ((p_frag = (BT_HDR*)fixed_queue_try_dequeue(p_scb->frag_q)) != NULL)
+             osi_free(p_frag);
+        p_scb->frag_off = 0;
+
+        /* we need to call callback to keep data flow going */
+        (*p_scb->cs.p_ctrl_cback)(avdt_scb_to_hdl(p_scb), NULL, AVDT_WRITE_CFM_EVT,
+                                  &avdt_ctrl);
+    }
+#endif
+}
+
+
+/*******************************************************************************
+**
+** Function         avdt_scb_chk_snd_pkt
+**
+** Description      This function checks if the SCB is congested, and if not
+**                  congested it sends a stored media packet, if any.  After it
+**                  sends the packet it calls the application callback function
+**                  with a write confirm.
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_chk_snd_pkt(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
+{
+    tAVDT_CTRL      avdt_ctrl;
+    BT_HDR          *p_pkt;
+#if AVDT_MULTIPLEXING == TRUE
+    BOOLEAN         sent = FALSE;
+    UINT8   res = AVDT_AD_SUCCESS;
+    tAVDT_SCB_EVT data;
+#endif
+    UNUSED(p_data);
+
+    avdt_ctrl.hdr.err_code = 0;
+
+    if (!p_scb->cong)
+    {
+        if (p_scb->p_pkt != NULL)
+        {
+            p_pkt = p_scb->p_pkt;
+            p_scb->p_pkt = NULL;
+            avdt_ad_write_req(AVDT_CHAN_MEDIA, p_scb->p_ccb, p_scb, p_pkt);
+
+            (*p_scb->cs.p_ctrl_cback)(avdt_scb_to_hdl(p_scb), NULL, AVDT_WRITE_CFM_EVT, &avdt_ctrl);
+        }
+#if AVDT_MULTIPLEXING == TRUE
+        else
+        {
+#if 0
+            AVDT_TRACE_DEBUG("num_q=%d",
+                L2CA_FlushChannel(avdt_cb.ad.rt_tbl[avdt_ccb_to_idx(p_scb->p_ccb)][avdt_ad_type_to_tcid(AVDT_CHAN_MEDIA, p_scb)].lcid),
+                                  L2CAP_FLUSH_CHANS_GET);
+#endif
+            while ((p_pkt = (BT_HDR*)fixed_queue_try_dequeue(p_scb->frag_q)) != NULL)
+            {
+                sent = TRUE;
+                AVDT_TRACE_DEBUG("Send fragment len=%d",p_pkt->len);
+                /* fragments queue contains fragment to send */
+                res = avdt_ad_write_req(AVDT_CHAN_MEDIA, p_scb->p_ccb, p_scb, p_pkt);
+                if(AVDT_AD_CONGESTED == res)
+                {
+                    p_scb->cong = TRUE;
+                    AVDT_TRACE_DEBUG("avdt/l2c congested!!");
+                    break;/* exit loop if channel became congested */
+            }
+            }
+            AVDT_TRACE_DEBUG("res=%d left=%d",res, p_scb->frag_off);
+
+            if(p_scb->frag_off)
+            {
+                if (AVDT_AD_SUCCESS == res || fixed_queue_is_empty(p_scb->frag_q))
+                {
+                    /* all buffers were sent to L2CAP, compose more to queue */
+                    avdt_scb_queue_frags(p_scb, &p_scb->p_next_frag, &p_scb->frag_off);
+                    if (!fixed_queue_is_empty(p_scb->frag_q))
+                    {
+                        data.llcong = p_scb->cong;
+                        avdt_scb_event(p_scb, AVDT_SCB_TC_CONG_EVT, &data);
+                    }
+                }
+            }
+
+            /* Send event AVDT_WRITE_CFM_EVT if it was last fragment */
+            else if (sent && fixed_queue_is_empty(p_scb->frag_q))
+            {
+                (*p_scb->cs.p_ctrl_cback)(avdt_scb_to_hdl(p_scb), NULL, AVDT_WRITE_CFM_EVT, &avdt_ctrl);
+            }
+        }
+#endif
+    }
+}
+
+/*******************************************************************************
+**
+** Function         avdt_scb_transport_channel_timer
+**
+** Description      This function is called to start a timer when the peer
+**                  initiates closing of the stream.  The timer verifies that
+**                  the peer disconnects the transport channel.
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_transport_channel_timer(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
+{
+    UNUSED(p_data);
+
+    alarm_set_on_queue(p_scb->transport_channel_timer,
+                       AVDT_SCB_TC_DISC_TIMEOUT_MS,
+                       avdt_scb_transport_channel_timer_timeout, p_scb,
+                       btu_general_alarm_queue);
+}
+
+/*******************************************************************************
+**
+** Function         avdt_scb_clr_vars
+**
+** Description      This function initializes certain SCB variables.
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_clr_vars(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
+{
+    UNUSED(p_data);
+    p_scb->in_use = FALSE;
+    p_scb->p_ccb = NULL;
+    p_scb->peer_seid = 0;
+}
+
+#if AVDT_MULTIPLEXING == TRUE
+/*******************************************************************************
+**
+** Function         avdt_scb_queue_frags
+**
+** Description      This function breaks media payload into fragments
+**                  and put the fragments in the given queue.
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void avdt_scb_queue_frags(tAVDT_SCB *p_scb, UINT8 **pp_data,
+                          UINT32 *p_data_len)
+{
+    UINT16  lcid;
+    UINT16  num_frag;
+    UINT16  mtu_used;
+    UINT8   *p;
+    BOOLEAN al_hdr = FALSE;
+    UINT8   tcid;
+    tAVDT_TC_TBL    *p_tbl;
+    UINT16          buf_size;
+    UINT16          offset = AVDT_MEDIA_OFFSET + AVDT_AL_HDR_SIZE;
+    UINT16          cont_offset = offset - AVDT_MEDIA_HDR_SIZE;
+
+    tcid = avdt_ad_type_to_tcid(AVDT_CHAN_MEDIA, p_scb);
+    lcid = avdt_cb.ad.rt_tbl[avdt_ccb_to_idx(p_scb->p_ccb)][tcid].lcid;
+
+    if( p_scb->frag_off != 0)
+    {
+        /* continuing process is usually triggered by un-congest event.
+         * the number of buffers at L2CAP is very small (if not 0).
+         * we do not need to L2CA_FlushChannel() */
+        offset = cont_offset;
+        al_hdr = TRUE;
+        num_frag = AVDT_MAX_FRAG_COUNT;
+    }
+    else
+    {
+        num_frag = L2CA_FlushChannel(lcid, L2CAP_FLUSH_CHANS_GET);
+        AVDT_TRACE_DEBUG("num_q=%d lcid=%d", num_frag, lcid);
+        if(num_frag >= AVDT_MAX_FRAG_COUNT)
+        {
+            num_frag = 0;
+        }
+        else
+        {
+            num_frag = AVDT_MAX_FRAG_COUNT - num_frag;
+        }
+    }
+
+    /* look up transport channel table entry to get peer mtu */
+    p_tbl = avdt_ad_tc_tbl_by_type(AVDT_CHAN_MEDIA, p_scb->p_ccb, p_scb);
+    buf_size = p_tbl->peer_mtu + BT_HDR_SIZE;
+    AVDT_TRACE_DEBUG("peer_mtu: %d, buf_size: %d num_frag=%d",
+        p_tbl->peer_mtu, buf_size, num_frag);
+
+    if (buf_size > AVDT_DATA_BUF_SIZE)
+        buf_size = AVDT_DATA_BUF_SIZE;
+
+    mtu_used = buf_size - BT_HDR_SIZE;
+
+    while (*p_data_len && num_frag) {
+        /* allocate buffer for fragment */
+        BT_HDR *p_frag = (BT_HDR *)osi_malloc(buf_size);
+
+        /* fill fragment by chunk of media payload */
+        p_frag->layer_specific = *p_data_len;/* length of all remaining transport packet */
+        p_frag->offset = offset;
+        /* adjust packet offset for continuing packets */
+        offset = cont_offset;
+
+        p_frag->len = mtu_used - p_frag->offset;
+        if(p_frag->len > *p_data_len)
+            p_frag->len = *p_data_len;
+        memcpy((UINT8*)(p_frag+1) + p_frag->offset, *pp_data, p_frag->len);
+        *pp_data += p_frag->len;
+        *p_data_len -= p_frag->len;
+        AVDT_TRACE_DEBUG("Prepared fragment len=%d", p_frag->len);
+
+        if(al_hdr)
+        {
+            /* Adaptation Layer header */
+            p_frag->len += AVDT_AL_HDR_SIZE;
+            p_frag->offset -= AVDT_AL_HDR_SIZE;
+            p = (UINT8 *)(p_frag + 1) + p_frag->offset;
+            /* TSID, fragment bit and coding of length(in 2 length octets following) */
+            *p++ = (p_scb->curr_cfg.mux_tsid_media<<3) | (AVDT_ALH_FRAG_MASK|AVDT_ALH_LCODE_16BIT);
+
+            /* length of all remaining transport packet */
+            UINT16_TO_BE_STREAM(p, p_frag->layer_specific );
+        }
+        /* put fragment into gueue */
+        fixed_queue_enqueue(p_scb->frag_q, p_frag);
+        num_frag--;
+    }
+}
+#endif
+
diff --git a/rtkbt/code/bt/stack/avrc/avrc_api.c b/rtkbt/code/bt/stack/avrc/avrc_api.c
new file mode 100755
index 0000000..77ca7d4
--- /dev/null
+++ b/rtkbt/code/bt/stack/avrc/avrc_api.c
@@ -0,0 +1,1132 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  Interface to AVRCP mandatory commands
+ *
+ ******************************************************************************/
+#include <assert.h>
+#include <string.h>
+
+#include "bt_common.h"
+#include "avrc_api.h"
+#include "avrc_int.h"
+
+/*****************************************************************************
+**  Global data
+*****************************************************************************/
+
+
+#define AVRC_MAX_RCV_CTRL_EVT   AVCT_BROWSE_UNCONG_IND_EVT
+
+#ifndef MAX
+#define MAX(a, b) ((a) > (b) ? (a) : (b))
+#endif
+
+static const UINT8 avrc_ctrl_event_map[] =
+{
+    AVRC_OPEN_IND_EVT,  /* AVCT_CONNECT_CFM_EVT */
+    AVRC_OPEN_IND_EVT,  /* AVCT_CONNECT_IND_EVT */
+    AVRC_CLOSE_IND_EVT, /* AVCT_DISCONNECT_CFM_EVT */
+    AVRC_CLOSE_IND_EVT, /* AVCT_DISCONNECT_IND_EVT */
+    AVRC_CONG_IND_EVT,  /* AVCT_CONG_IND_EVT */
+    AVRC_UNCONG_IND_EVT,/* AVCT_UNCONG_IND_EVT */
+    AVRC_BROWSE_OPEN_IND_EVT,  /* AVCT_BROWSE_CONN_CFM_EVT   */
+    AVRC_BROWSE_OPEN_IND_EVT,  /* AVCT_BROWSE_CONN_IND_EVT   */
+    AVRC_BROWSE_CLOSE_IND_EVT, /* AVCT_BROWSE_DISCONN_CFM_EVT */
+    AVRC_BROWSE_CLOSE_IND_EVT, /* AVCT_BROWSE_DISCONN_IND_EVT */
+    AVRC_BROWSE_CONG_IND_EVT,  /* AVCT_BROWSE_CONG_IND_EVT    */
+    AVRC_BROWSE_UNCONG_IND_EVT /* AVCT_BROWSE_UNCONG_IND_EVT  */
+};
+
+#define AVRC_OP_DROP        0xFE    /* use this unused opcode to indication no need to call the callback function */
+#define AVRC_OP_DROP_N_FREE 0xFD    /* use this unused opcode to indication no need to call the callback function & free buffer */
+
+#define AVRC_OP_UNIT_INFO_RSP_LEN       8
+#define AVRC_OP_SUB_UNIT_INFO_RSP_LEN   8
+#define AVRC_OP_REJ_MSG_LEN            11
+
+/******************************************************************************
+**
+** Function         avrc_ctrl_cback
+**
+** Description      This is the callback function used by AVCTP to report
+**                  received link events.
+**
+** Returns          Nothing.
+**
+******************************************************************************/
+static void avrc_ctrl_cback(UINT8 handle, UINT8 event, UINT16 result,
+                                BD_ADDR peer_addr)
+{
+    UINT8   avrc_event;
+
+    if (event <= AVRC_MAX_RCV_CTRL_EVT && avrc_cb.ccb[handle].p_ctrl_cback)
+    {
+        avrc_event = avrc_ctrl_event_map[event];
+        if (event == AVCT_CONNECT_CFM_EVT)
+        {
+            if (result != 0) /* failed */
+                avrc_event = AVRC_CLOSE_IND_EVT;
+        }
+        (*avrc_cb.ccb[handle].p_ctrl_cback)(handle, avrc_event, result, peer_addr);
+    }
+    /* else drop the unknown event*/
+}
+
+/******************************************************************************
+**
+** Function         avrc_get_data_ptr
+**
+** Description      Gets a pointer to the data payload in the packet.
+**
+** Returns          A pointer to the data payload.
+**
+******************************************************************************/
+static UINT8 * avrc_get_data_ptr(BT_HDR *p_pkt)
+{
+    return (UINT8 *)(p_pkt + 1) + p_pkt->offset;
+}
+
+/******************************************************************************
+**
+** Function         avrc_copy_packet
+**
+** Description      Copies an AVRC packet to a new buffer. In the new buffer,
+**                  the payload offset is at least AVCT_MSG_OFFSET octets.
+**
+** Returns          The buffer with the copied data.
+**
+******************************************************************************/
+static BT_HDR * avrc_copy_packet(BT_HDR *p_pkt, int rsp_pkt_len)
+{
+    const int offset = MAX(AVCT_MSG_OFFSET, p_pkt->offset);
+    const int pkt_len = MAX(rsp_pkt_len, p_pkt->len);
+    BT_HDR *p_pkt_copy = (BT_HDR *)osi_malloc(BT_HDR_SIZE + offset + pkt_len);
+
+    /* Copy the packet header, set the new offset, and copy the payload */
+    memcpy(p_pkt_copy, p_pkt, BT_HDR_SIZE);
+    p_pkt_copy->offset = offset;
+    UINT8 *p_data = avrc_get_data_ptr(p_pkt);
+    UINT8 *p_data_copy = avrc_get_data_ptr(p_pkt_copy);
+    memcpy(p_data_copy, p_data, p_pkt->len);
+
+    return p_pkt_copy;
+}
+
+#if (AVRC_METADATA_INCLUDED == TRUE)
+/******************************************************************************
+**
+** Function         avrc_prep_end_frag
+**
+** Description      This function prepares an end response fragment
+**
+** Returns          Nothing.
+**
+******************************************************************************/
+static void avrc_prep_end_frag(UINT8 handle)
+{
+    tAVRC_FRAG_CB   *p_fcb;
+    BT_HDR  *p_pkt_new;
+    UINT8   *p_data, *p_orig_data;
+    UINT8   rsp_type;
+
+    AVRC_TRACE_DEBUG ("avrc_prep_end_frag" );
+    p_fcb = &avrc_cb.fcb[handle];
+
+    /* The response type of the end fragment should be the same as the the PDU of "End Fragment
+    ** Response" Errata: https://www.bluetooth.org/errata/errata_view.cfm?errata_id=4383
+    */
+    p_orig_data = ((UINT8 *)(p_fcb->p_fmsg + 1) + p_fcb->p_fmsg->offset);
+    rsp_type = ((*p_orig_data) & AVRC_CTYPE_MASK);
+
+    p_pkt_new           = p_fcb->p_fmsg;
+    p_pkt_new->len      -= (AVRC_MAX_CTRL_DATA_LEN - AVRC_VENDOR_HDR_SIZE - AVRC_MIN_META_HDR_SIZE);
+    p_pkt_new->offset   += (AVRC_MAX_CTRL_DATA_LEN - AVRC_VENDOR_HDR_SIZE - AVRC_MIN_META_HDR_SIZE);
+    p_data = (UINT8 *)(p_pkt_new+1) + p_pkt_new->offset;
+    *p_data++       = rsp_type;
+    *p_data++       = (AVRC_SUB_PANEL << AVRC_SUBTYPE_SHIFT);
+    *p_data++       = AVRC_OP_VENDOR;
+    AVRC_CO_ID_TO_BE_STREAM(p_data, AVRC_CO_METADATA);
+    *p_data++       = p_fcb->frag_pdu;
+    *p_data++       = AVRC_PKT_END;
+
+    /* 4=pdu, pkt_type & len */
+    UINT16_TO_BE_STREAM(p_data, (p_pkt_new->len - AVRC_VENDOR_HDR_SIZE - AVRC_MIN_META_HDR_SIZE));
+}
+
+/******************************************************************************
+**
+** Function         avrc_send_continue_frag
+**
+** Description      This function sends a continue response fragment
+**
+** Returns          Nothing.
+**
+******************************************************************************/
+static void avrc_send_continue_frag(UINT8 handle, UINT8 label)
+{
+    tAVRC_FRAG_CB   *p_fcb;
+    BT_HDR  *p_pkt_old, *p_pkt;
+    UINT8   *p_old, *p_data;
+    UINT8   cr = AVCT_RSP;
+
+    p_fcb = &avrc_cb.fcb[handle];
+    p_pkt = p_fcb->p_fmsg;
+
+    AVRC_TRACE_DEBUG("%s handle = %u label = %u len = %d",
+                     __func__, handle, label, p_pkt->len);
+    if (p_pkt->len > AVRC_MAX_CTRL_DATA_LEN) {
+        int offset_len = MAX(AVCT_MSG_OFFSET, p_pkt->offset);
+        p_pkt_old = p_fcb->p_fmsg;
+        p_pkt = (BT_HDR *)osi_malloc(AVRC_PACKET_LEN + offset_len + BT_HDR_SIZE);
+        p_pkt->len = AVRC_MAX_CTRL_DATA_LEN;
+        p_pkt->offset = AVCT_MSG_OFFSET;
+        p_pkt->layer_specific = p_pkt_old->layer_specific;
+        p_pkt->event = p_pkt_old->event;
+        p_old = (UINT8 *)(p_pkt_old + 1) + p_pkt_old->offset;
+        p_data = (UINT8 *)(p_pkt + 1) + p_pkt->offset;
+        memcpy (p_data, p_old, AVRC_MAX_CTRL_DATA_LEN);
+        /* use AVRC continue packet type */
+        p_data += AVRC_VENDOR_HDR_SIZE;
+        p_data++; /* pdu */
+        *p_data++ = AVRC_PKT_CONTINUE;
+        /* 4=pdu, pkt_type & len */
+        UINT16_TO_BE_STREAM(p_data, (AVRC_MAX_CTRL_DATA_LEN - AVRC_VENDOR_HDR_SIZE - 4));
+
+        /* prepare the left over for as an end fragment */
+        avrc_prep_end_frag (handle);
+    } else {
+        /* end fragment. clean the control block */
+        p_fcb->frag_enabled = FALSE;
+        p_fcb->p_fmsg       = NULL;
+    }
+    AVCT_MsgReq( handle, label, cr, p_pkt);
+}
+
+/******************************************************************************
+**
+** Function         avrc_proc_vendor_command
+**
+** Description      This function processes received vendor command.
+**
+** Returns          if not NULL, the response to send right away.
+**
+******************************************************************************/
+static BT_HDR * avrc_proc_vendor_command(UINT8 handle, UINT8 label,
+                               BT_HDR *p_pkt, tAVRC_MSG_VENDOR *p_msg)
+{
+    BT_HDR      *p_rsp = NULL;
+    UINT8       *p_data;
+    UINT8       *p_begin;
+    UINT8       pkt_type;
+    BOOLEAN     abort_frag = FALSE;
+    tAVRC_STS   status = AVRC_STS_NO_ERROR;
+    tAVRC_FRAG_CB   *p_fcb;
+
+    p_begin  = (UINT8 *)(p_pkt+1) + p_pkt->offset;
+    p_data   = p_begin + AVRC_VENDOR_HDR_SIZE;
+    pkt_type = *(p_data + 1) & AVRC_PKT_TYPE_MASK;
+
+    if (pkt_type != AVRC_PKT_SINGLE)
+    {
+        /* reject - commands can only be in single packets at AVRCP level */
+        AVRC_TRACE_ERROR ("commands must be in single packet pdu:0x%x", *p_data );
+        /* use the current GKI buffer to send the reject */
+        status = AVRC_STS_BAD_CMD;
+    }
+    /* check if there are fragments waiting to be sent */
+    else if (avrc_cb.fcb[handle].frag_enabled)
+    {
+        p_fcb = &avrc_cb.fcb[handle];
+        if (p_msg->company_id == AVRC_CO_METADATA)
+        {
+            switch (*p_data)
+            {
+            case AVRC_PDU_ABORT_CONTINUATION_RSP:
+                /* aborted by CT - send accept response */
+                abort_frag = TRUE;
+                p_begin = (UINT8 *)(p_pkt+1) + p_pkt->offset;
+                *p_begin = (AVRC_RSP_ACCEPT & AVRC_CTYPE_MASK);
+                if (*(p_data + 4) != p_fcb->frag_pdu)
+                {
+                    *p_begin = (AVRC_RSP_REJ & AVRC_CTYPE_MASK);
+                    *(p_data + 4) = AVRC_STS_BAD_PARAM;
+                }
+                else
+                {
+                    p_data = (p_begin + AVRC_VENDOR_HDR_SIZE + 2);
+                    UINT16_TO_BE_STREAM(p_data, 0);
+                    p_pkt->len = (p_data - p_begin);
+                }
+                AVCT_MsgReq( handle, label, AVCT_RSP, p_pkt);
+                p_msg->hdr.opcode = AVRC_OP_DROP; /* used the p_pkt to send response */
+                break;
+
+            case AVRC_PDU_REQUEST_CONTINUATION_RSP:
+                if (*(p_data + 4) == p_fcb->frag_pdu)
+                {
+                    avrc_send_continue_frag(handle, label);
+                    p_msg->hdr.opcode = AVRC_OP_DROP_N_FREE;
+                }
+                else
+                {
+                    /* the pdu id does not match - reject the command using the current GKI buffer */
+                    AVRC_TRACE_ERROR("avrc_proc_vendor_command continue pdu: 0x%x does not match \
+                    current re-assembly pdu: 0x%x",
+                        *(p_data + 4), p_fcb->frag_pdu);
+                    status = AVRC_STS_BAD_PARAM;
+                    abort_frag = TRUE;
+                }
+                break;
+
+            default:
+                /* implicit abort */
+                abort_frag = TRUE;
+            }
+        }
+        else
+        {
+            abort_frag = TRUE;
+            /* implicit abort */
+        }
+
+        if (abort_frag)
+        {
+            osi_free_and_reset((void **)&p_fcb->p_fmsg);
+            p_fcb->frag_enabled = FALSE;
+        }
+    }
+
+    if (status != AVRC_STS_NO_ERROR)
+    {
+        /* use the current GKI buffer to build/send the reject message */
+        p_data = (UINT8 *)(p_pkt+1) + p_pkt->offset;
+        *p_data++ = AVRC_RSP_REJ;
+        p_data += AVRC_VENDOR_HDR_SIZE; /* pdu */
+        *p_data++ = 0;                  /* pkt_type */
+        UINT16_TO_BE_STREAM(p_data, 1); /* len */
+        *p_data++ = status;             /* error code */
+        p_pkt->len = AVRC_VENDOR_HDR_SIZE + 5;
+        p_rsp = p_pkt;
+    }
+
+    return p_rsp;
+}
+
+/******************************************************************************
+**
+** Function         avrc_proc_far_msg
+**
+** Description      This function processes metadata fragmenation
+**                  and reassembly
+**
+** Returns          0, to report the message with msg_cback .
+**
+******************************************************************************/
+static UINT8 avrc_proc_far_msg(UINT8 handle, UINT8 label, UINT8 cr, BT_HDR **pp_pkt,
+    tAVRC_MSG_VENDOR *p_msg)
+{
+    BT_HDR      *p_pkt = *pp_pkt;
+    UINT8       *p_data;
+    UINT8       drop_code = 0;
+    BOOLEAN     buf_overflow = FALSE;
+    BT_HDR      *p_rsp = NULL;
+    BT_HDR      *p_cmd = NULL;
+    BOOLEAN     req_continue = FALSE;
+    BT_HDR      *p_pkt_new = NULL;
+    UINT8       pkt_type;
+    tAVRC_RASM_CB   *p_rcb;
+    tAVRC_NEXT_CMD   avrc_cmd;
+
+    p_data  = (UINT8 *)(p_pkt+1) + p_pkt->offset;
+
+    /* Skip over vendor header (ctype, subunit*, opcode, CO_ID) */
+    p_data += AVRC_VENDOR_HDR_SIZE;
+
+    pkt_type = *(p_data + 1) & AVRC_PKT_TYPE_MASK;
+    AVRC_TRACE_DEBUG ("pkt_type %d", pkt_type );
+    p_rcb = &avrc_cb.rcb[handle];
+    if (p_msg->company_id == AVRC_CO_METADATA)
+    {
+        /* check if the message needs to be re-assembled */
+        if (pkt_type == AVRC_PKT_SINGLE || pkt_type == AVRC_PKT_START)
+        {
+            /* previous fragments need to be dropped, when received another new message */
+            p_rcb->rasm_offset = 0;
+            osi_free_and_reset((void **)&p_rcb->p_rmsg);
+        }
+
+        if (pkt_type != AVRC_PKT_SINGLE && cr == AVCT_RSP)
+        {
+            /* not a single response packet - need to re-assemble metadata messages */
+            if (pkt_type == AVRC_PKT_START) {
+                /* Allocate buffer for re-assembly */
+                p_rcb->rasm_pdu = *p_data;
+                p_rcb->p_rmsg = (BT_HDR *)osi_malloc(BT_DEFAULT_BUFFER_SIZE);
+                /* Copy START packet to buffer for re-assembling fragments */
+                memcpy(p_rcb->p_rmsg, p_pkt, sizeof(BT_HDR)); /* Copy bt hdr */
+
+                /* Copy metadata message */
+                memcpy((UINT8 *)(p_rcb->p_rmsg + 1),
+                       (UINT8 *)(p_pkt+1) + p_pkt->offset, p_pkt->len);
+
+                /* offset of start of metadata response in reassembly buffer */
+                p_rcb->p_rmsg->offset = p_rcb->rasm_offset = 0;
+
+                /*
+                 * Free original START packet, replace with pointer to
+                 * reassembly buffer.
+                 */
+                osi_free(p_pkt);
+                *pp_pkt = p_rcb->p_rmsg;
+
+                /*
+                 * Set offset to point to where to copy next - use the same
+                 * reassembly logic as AVCT.
+                 */
+                p_rcb->p_rmsg->offset += p_rcb->p_rmsg->len;
+                req_continue = TRUE;
+            } else if (p_rcb->p_rmsg == NULL) {
+                /* Received a CONTINUE/END, but no corresponding START
+                              (or previous fragmented response was dropped) */
+                AVRC_TRACE_DEBUG ("Received a CONTINUE/END without no corresponding START \
+                                   (or previous fragmented response was dropped)");
+                drop_code = 5;
+                osi_free(p_pkt);
+                *pp_pkt = NULL;
+            }
+            else
+            {
+                /* get size of buffer holding assembled message */
+                /*
+                 * NOTE: The buffer is allocated above at the beginning of the
+                 * reassembly, and is always of size BT_DEFAULT_BUFFER_SIZE.
+                 */
+                UINT16 buf_len = BT_DEFAULT_BUFFER_SIZE - sizeof(BT_HDR);
+                /* adjust offset and len of fragment for header byte */
+                p_pkt->offset += (AVRC_VENDOR_HDR_SIZE + AVRC_MIN_META_HDR_SIZE);
+                p_pkt->len -= (AVRC_VENDOR_HDR_SIZE + AVRC_MIN_META_HDR_SIZE);
+                /* verify length */
+                if ((p_rcb->p_rmsg->offset + p_pkt->len) > buf_len)
+                {
+                    AVRC_TRACE_WARNING("Fragmented message too big! - report the partial message");
+                    p_pkt->len = buf_len - p_rcb->p_rmsg->offset;
+                    pkt_type = AVRC_PKT_END;
+                    buf_overflow = true;
+                }
+
+                /* copy contents of p_pkt to p_rx_msg */
+                memcpy((UINT8 *)(p_rcb->p_rmsg + 1) + p_rcb->p_rmsg->offset,
+                       (UINT8 *)(p_pkt + 1) + p_pkt->offset, p_pkt->len);
+
+                if (pkt_type == AVRC_PKT_END)
+                {
+                    p_rcb->p_rmsg->offset = p_rcb->rasm_offset;
+                    p_rcb->p_rmsg->len += p_pkt->len;
+                    p_pkt_new = p_rcb->p_rmsg;
+                    p_rcb->rasm_offset = 0;
+                    p_rcb->p_rmsg = NULL;
+                    p_msg->p_vendor_data   = (UINT8 *)(p_pkt_new+1) + p_pkt_new->offset;
+                    p_msg->hdr.ctype       = p_msg->p_vendor_data[0] & AVRC_CTYPE_MASK;
+                    /* 6 = ctype, subunit*, opcode & CO_ID */
+                    p_msg->p_vendor_data  += AVRC_VENDOR_HDR_SIZE;
+                    p_msg->vendor_len      = p_pkt_new->len - AVRC_VENDOR_HDR_SIZE;
+                    p_data = p_msg->p_vendor_data + 1; /* skip pdu */
+                    *p_data++ = AVRC_PKT_SINGLE;
+                    UINT16_TO_BE_STREAM(p_data, (p_msg->vendor_len - AVRC_MIN_META_HDR_SIZE));
+                    AVRC_TRACE_DEBUG("end frag:%d, total len:%d, offset:%d", p_pkt->len,
+                        p_pkt_new->len, p_pkt_new->offset);
+                }
+                else
+                {
+                    p_rcb->p_rmsg->offset += p_pkt->len;
+                    p_rcb->p_rmsg->len += p_pkt->len;
+                    p_pkt_new = NULL;
+                    req_continue = TRUE;
+                }
+                osi_free(p_pkt);
+                *pp_pkt = p_pkt_new;
+            }
+        }
+
+        if (cr == AVCT_CMD)
+        {
+            p_rsp = avrc_proc_vendor_command(handle, label, *pp_pkt, p_msg);
+            if (p_rsp)
+            {
+                AVCT_MsgReq( handle, label, AVCT_RSP, p_rsp);
+                drop_code = 3;
+            }
+            else if (p_msg->hdr.opcode == AVRC_OP_DROP)
+            {
+                drop_code = 1;
+            }
+            else if (p_msg->hdr.opcode == AVRC_OP_DROP_N_FREE)
+                drop_code = 4;
+
+        }
+        else if (cr == AVCT_RSP && req_continue == TRUE)
+        {
+            avrc_cmd.pdu    = AVRC_PDU_REQUEST_CONTINUATION_RSP;
+            avrc_cmd.status = AVRC_STS_NO_ERROR;
+            avrc_cmd.target_pdu = p_rcb->rasm_pdu;
+            if (AVRC_BldCommand ((tAVRC_COMMAND *)&avrc_cmd, &p_cmd) == AVRC_STS_NO_ERROR)
+            {
+                drop_code = 2;
+                AVRC_MsgReq (handle, (UINT8)(label), AVRC_CMD_CTRL, p_cmd);
+            }
+        }
+        /*
+         * Drop it if we are out of buffer
+         */
+        else if (cr == AVCT_RSP && req_continue == FALSE  && buf_overflow == TRUE)
+        {
+            avrc_cmd.pdu    = AVRC_PDU_ABORT_CONTINUATION_RSP;
+            avrc_cmd.status = AVRC_STS_NO_ERROR;
+            avrc_cmd.target_pdu = p_rcb->rasm_pdu;
+            if (AVRC_BldCommand ((tAVRC_COMMAND *)&avrc_cmd, &p_cmd) == AVRC_STS_NO_ERROR)
+            {
+                drop_code = 4;
+                AVRC_MsgReq (handle, (UINT8)(label), AVRC_CMD_CTRL, p_cmd);
+            }
+        }
+    }
+
+    return drop_code;
+}
+#endif /* (AVRC_METADATA_INCLUDED == TRUE) */
+
+/******************************************************************************
+**
+** Function         avrc_msg_cback
+**
+** Description      This is the callback function used by AVCTP to report
+**                  received AV control messages.
+**
+** Returns          Nothing.
+**
+******************************************************************************/
+static void avrc_msg_cback(UINT8 handle, UINT8 label, UINT8 cr,
+                               BT_HDR *p_pkt)
+{
+    UINT8       opcode;
+    tAVRC_MSG   msg;
+    UINT8       *p_data;
+    UINT8       *p_begin;
+    BOOLEAN     drop = FALSE;
+    BOOLEAN     do_free = TRUE;
+    BT_HDR      *p_rsp = NULL;
+    UINT8       *p_rsp_data;
+    int         xx;
+    BOOLEAN     reject = FALSE;
+#if (BT_USE_TRACES == TRUE)
+    char        *p_drop_msg = "dropped";
+#endif
+    tAVRC_MSG_VENDOR *p_msg = &msg.vendor;
+
+    if (cr == AVCT_CMD &&
+        (p_pkt->layer_specific & AVCT_DATA_CTRL && AVRC_PACKET_LEN < sizeof(p_pkt->len)))
+    {
+        /* Ignore the invalid AV/C command frame */
+#if (BT_USE_TRACES == TRUE)
+        p_drop_msg = "dropped - too long AV/C cmd frame size";
+#endif
+        osi_free(p_pkt);
+        return;
+    }
+
+    if (cr == AVCT_REJ)
+    {
+        /* The peer thinks that this PID is no longer open - remove this handle */
+        /*  */
+        osi_free(p_pkt);
+        AVCT_RemoveConn(handle);
+        return;
+    }
+
+    p_data  = (UINT8 *)(p_pkt+1) + p_pkt->offset;
+    memset(&msg, 0, sizeof(tAVRC_MSG) );
+    {
+        msg.hdr.ctype           = p_data[0] & AVRC_CTYPE_MASK;
+        AVRC_TRACE_DEBUG("avrc_msg_cback handle:%d, ctype:%d, offset:%d, len: %d",
+                handle, msg.hdr.ctype, p_pkt->offset, p_pkt->len);
+        msg.hdr.subunit_type    = (p_data[1] & AVRC_SUBTYPE_MASK) >> AVRC_SUBTYPE_SHIFT;
+        msg.hdr.subunit_id      = p_data[1] & AVRC_SUBID_MASK;
+        opcode                  = p_data[2];
+    }
+
+    if ( ((avrc_cb.ccb[handle].control & AVRC_CT_TARGET) && (cr == AVCT_CMD)) ||
+        ((avrc_cb.ccb[handle].control & AVRC_CT_CONTROL) && (cr == AVCT_RSP)) )
+    {
+
+        switch(opcode)
+        {
+        case AVRC_OP_UNIT_INFO:
+            if (cr == AVCT_CMD)
+            {
+                /* send the response to the peer */
+                p_rsp = avrc_copy_packet(p_pkt, AVRC_OP_UNIT_INFO_RSP_LEN);
+                p_rsp_data = avrc_get_data_ptr(p_rsp);
+                *p_rsp_data = AVRC_RSP_IMPL_STBL;
+                /* check & set the offset. set response code, set subunit_type & subunit_id,
+                   set AVRC_OP_UNIT_INFO */
+                /* 3 bytes: ctype, subunit*, opcode */
+                p_rsp_data      += AVRC_AVC_HDR_SIZE;
+                *p_rsp_data++   = 7;
+                /* Panel subunit & id=0 */
+                *p_rsp_data++   = (AVRC_SUB_PANEL << AVRC_SUBTYPE_SHIFT);
+                AVRC_CO_ID_TO_BE_STREAM(p_rsp_data, avrc_cb.ccb[handle].company_id);
+                p_rsp->len      = (UINT16) (p_rsp_data - (UINT8 *)(p_rsp + 1) - p_rsp->offset);
+                cr = AVCT_RSP;
+#if (BT_USE_TRACES == TRUE)
+                p_drop_msg = "auto respond";
+#endif
+            }
+            else
+            {
+                /* parse response */
+                p_data += 4; /* 3 bytes: ctype, subunit*, opcode + octet 3 (is 7)*/
+                msg.unit.unit_type  = (*p_data & AVRC_SUBTYPE_MASK) >> AVRC_SUBTYPE_SHIFT;
+                msg.unit.unit       = *p_data & AVRC_SUBID_MASK;
+                p_data++;
+                AVRC_BE_STREAM_TO_CO_ID(msg.unit.company_id, p_data);
+            }
+            break;
+
+        case AVRC_OP_SUB_INFO:
+            if (cr == AVCT_CMD)
+            {
+                /* send the response to the peer */
+                p_rsp = avrc_copy_packet(p_pkt, AVRC_OP_SUB_UNIT_INFO_RSP_LEN);
+                p_rsp_data = avrc_get_data_ptr(p_rsp);
+                *p_rsp_data = AVRC_RSP_IMPL_STBL;
+                /* check & set the offset. set response code, set (subunit_type & subunit_id),
+                   set AVRC_OP_SUB_INFO, set (page & extention code) */
+                p_rsp_data      += 4;
+                /* Panel subunit & id=0 */
+                *p_rsp_data++   = (AVRC_SUB_PANEL << AVRC_SUBTYPE_SHIFT);
+                memset(p_rsp_data, AVRC_CMD_OPRND_PAD, AVRC_SUBRSP_OPRND_BYTES);
+                p_rsp_data      += AVRC_SUBRSP_OPRND_BYTES;
+                p_rsp->len      = (UINT16) (p_rsp_data - (UINT8 *)(p_rsp + 1) - p_rsp->offset);
+                cr = AVCT_RSP;
+#if (BT_USE_TRACES == TRUE)
+                p_drop_msg = "auto responded";
+#endif
+            }
+            else
+            {
+                /* parse response */
+                p_data += AVRC_AVC_HDR_SIZE; /* 3 bytes: ctype, subunit*, opcode */
+                msg.sub.page    = (*p_data++ >> AVRC_SUB_PAGE_SHIFT) & AVRC_SUB_PAGE_MASK;
+                xx      = 0;
+                while (*p_data != AVRC_CMD_OPRND_PAD && xx<AVRC_SUB_TYPE_LEN)
+                {
+                    msg.sub.subunit_type[xx] = *p_data++ >> AVRC_SUBTYPE_SHIFT;
+                    if (msg.sub.subunit_type[xx] == AVRC_SUB_PANEL)
+                        msg.sub.panel   = TRUE;
+                    xx++;
+                }
+            }
+            break;
+
+        case AVRC_OP_VENDOR:
+            p_data  = (UINT8 *)(p_pkt+1) + p_pkt->offset;
+            p_begin = p_data;
+            if (p_pkt->len < AVRC_VENDOR_HDR_SIZE) /* 6 = ctype, subunit*, opcode & CO_ID */
+            {
+                if (cr == AVCT_CMD)
+                    reject = TRUE;
+                else
+                    drop = TRUE;
+                break;
+            }
+            p_data += AVRC_AVC_HDR_SIZE; /* skip the first 3 bytes: ctype, subunit*, opcode */
+            AVRC_BE_STREAM_TO_CO_ID(p_msg->company_id, p_data);
+            p_msg->p_vendor_data   = p_data;
+            p_msg->vendor_len      = p_pkt->len - (p_data - p_begin);
+
+#if (AVRC_METADATA_INCLUDED == TRUE)
+            UINT8 drop_code = 0;
+            if (p_msg->company_id == AVRC_CO_METADATA)
+            {
+                /* Validate length for metadata message */
+                if (p_pkt->len < (AVRC_VENDOR_HDR_SIZE + AVRC_MIN_META_HDR_SIZE))
+                {
+                    if (cr == AVCT_CMD)
+                        reject = TRUE;
+                    else
+                        drop = TRUE;
+                    break;
+                }
+
+                /* Check+handle fragmented messages */
+                drop_code = avrc_proc_far_msg(handle, label, cr, &p_pkt, p_msg);
+                if (drop_code > 0)
+                    drop = TRUE;
+            }
+            if (drop_code > 0)
+            {
+                if (drop_code != 4)
+                    do_free = FALSE;
+#if (BT_USE_TRACES == TRUE)
+                switch (drop_code)
+                {
+                case 1:
+                    p_drop_msg = "sent_frag";
+                    break;
+                case 2:
+                    p_drop_msg = "req_cont";
+                    break;
+                case 3:
+                    p_drop_msg = "sent_frag3";
+                    break;
+                case 4:
+                    p_drop_msg = "sent_frag_free";
+                    break;
+                default:
+                    p_drop_msg = "sent_fragd";
+                }
+#endif
+            }
+#endif /* (AVRC_METADATA_INCLUDED == TRUE) */
+            break;
+
+        case AVRC_OP_PASS_THRU:
+            if (p_pkt->len < 5) /* 3 bytes: ctype, subunit*, opcode & op_id & len */
+            {
+                if (cr == AVCT_CMD)
+                    reject = TRUE;
+                else
+                    drop = TRUE;
+                break;
+            }
+            p_data += AVRC_AVC_HDR_SIZE; /* skip the first 3 bytes: ctype, subunit*, opcode */
+            msg.pass.op_id  = (AVRC_PASS_OP_ID_MASK & *p_data);
+            if (AVRC_PASS_STATE_MASK & *p_data)
+                msg.pass.state  = TRUE;
+            else
+                msg.pass.state  = FALSE;
+            p_data++;
+            msg.pass.pass_len    = *p_data++;
+            if (msg.pass.pass_len != p_pkt->len - 5)
+                msg.pass.pass_len = p_pkt->len - 5;
+            if (msg.pass.pass_len)
+                msg.pass.p_pass_data = p_data;
+            else
+                msg.pass.p_pass_data = NULL;
+            break;
+
+
+        default:
+            if ((avrc_cb.ccb[handle].control & AVRC_CT_TARGET) && (cr == AVCT_CMD))
+            {
+                /* reject unsupported opcode */
+                reject = TRUE;
+            }
+            drop    = TRUE;
+            break;
+        }
+    }
+    else /* drop the event */
+    {
+            drop    = TRUE;
+    }
+
+    if (reject)
+    {
+        /* reject unsupported opcode */
+        p_rsp = avrc_copy_packet(p_pkt, AVRC_OP_REJ_MSG_LEN);
+        p_rsp_data = avrc_get_data_ptr(p_rsp);
+        *p_rsp_data = AVRC_RSP_REJ;
+#if (BT_USE_TRACES == TRUE)
+        p_drop_msg = "rejected";
+#endif
+        cr      = AVCT_RSP;
+        drop    = TRUE;
+    }
+
+    if (p_rsp)
+    {
+        /* set to send response right away */
+        AVCT_MsgReq( handle, label, cr, p_rsp);
+        drop = TRUE;
+    }
+
+    if (drop == FALSE)
+    {
+        msg.hdr.opcode = opcode;
+        (*avrc_cb.ccb[handle].p_msg_cback)(handle, label, opcode, &msg);
+    }
+#if (BT_USE_TRACES == TRUE)
+    else
+    {
+        AVRC_TRACE_WARNING("avrc_msg_cback %s msg handle:%d, control:%d, cr:%d, opcode:x%x",
+                p_drop_msg,
+                handle, avrc_cb.ccb[handle].control, cr, opcode);
+    }
+#endif
+
+
+    if (do_free)
+        osi_free(p_pkt);
+}
+
+
+
+
+/******************************************************************************
+**
+** Function         avrc_pass_msg
+**
+** Description      Compose a PASS THROUGH command according to p_msg
+**
+**                  Input Parameters:
+**                      p_msg: Pointer to PASS THROUGH message structure.
+**
+**                  Output Parameters:
+**                      None.
+**
+** Returns          pointer to a valid GKI buffer if successful.
+**                  NULL if p_msg is NULL.
+**
+******************************************************************************/
+static BT_HDR  * avrc_pass_msg(tAVRC_MSG_PASS *p_msg)
+{
+    assert(p_msg != NULL);
+    assert(AVRC_CMD_BUF_SIZE > (AVRC_MIN_CMD_LEN+p_msg->pass_len));
+
+    BT_HDR  *p_cmd = (BT_HDR *)osi_malloc(AVRC_CMD_BUF_SIZE);
+    p_cmd->offset = AVCT_MSG_OFFSET;
+    p_cmd->layer_specific = AVCT_DATA_CTRL;
+
+    UINT8 *p_data = (UINT8 *)(p_cmd + 1) + p_cmd->offset;
+    *p_data++ = (p_msg->hdr.ctype & AVRC_CTYPE_MASK);
+    *p_data++ = (AVRC_SUB_PANEL << AVRC_SUBTYPE_SHIFT); /* Panel subunit & id=0 */
+    *p_data++ = AVRC_OP_PASS_THRU;
+    *p_data = (AVRC_PASS_OP_ID_MASK&p_msg->op_id);
+    if (p_msg->state)
+        *p_data     |= AVRC_PASS_STATE_MASK;
+    p_data++;
+
+    if (p_msg->op_id == AVRC_ID_VENDOR) {
+        *p_data++ = p_msg->pass_len;
+        if (p_msg->pass_len && p_msg->p_pass_data) {
+            memcpy(p_data, p_msg->p_pass_data, p_msg->pass_len);
+            p_data += p_msg->pass_len;
+        }
+    } else {
+        /* set msg len to 0 for other op_id */
+        *p_data++       = 0;
+    }
+    p_cmd->len = (UINT16) (p_data - (UINT8 *)(p_cmd + 1) - p_cmd->offset);
+
+    return p_cmd;
+}
+
+/******************************************************************************
+**
+** Function         AVRC_Open
+**
+** Description      This function is called to open a connection to AVCTP.
+**                  The connection can be either an initiator or acceptor, as
+**                  determined by the p_ccb->stream parameter.
+**                  The connection can be a target, a controller or for both role,
+**                  as determined by the p_ccb->control parameter.
+**                  By definition, a target connection is an acceptor connection
+**                  that waits for an incoming AVCTP connection from the peer.
+**                  The connection remains available to the application until
+**                  the application closes it by calling AVRC_Close().  The
+**                  application does not need to reopen the connection after an
+**                  AVRC_CLOSE_IND_EVT is received.
+**
+**                  Input Parameters:
+**                      p_ccb->company_id: Company Identifier.
+**
+**                      p_ccb->p_ctrl_cback:  Pointer to control callback function.
+**
+**                      p_ccb->p_msg_cback:  Pointer to message callback function.
+**
+**                      p_ccb->conn: AVCTP connection role.  This is set to
+**                      AVCTP_INT for initiator connections and AVCTP_ACP
+**                      for acceptor connections.
+**
+**                      p_ccb->control: Control role.  This is set to
+**                      AVRC_CT_TARGET for target connections, AVRC_CT_CONTROL
+**                      for control connections or (AVRC_CT_TARGET|AVRC_CT_CONTROL)
+**                      for connections that support both roles.
+**
+**                      peer_addr: BD address of peer device.  This value is
+**                      only used for initiator connections; for acceptor
+**                      connections it can be set to NULL.
+**
+**                  Output Parameters:
+**                      p_handle: Pointer to handle.  This parameter is only
+**                                valid if AVRC_SUCCESS is returned.
+**
+** Returns          AVRC_SUCCESS if successful.
+**                  AVRC_NO_RESOURCES if there are not enough resources to open
+**                  the connection.
+**
+******************************************************************************/
+UINT16 AVRC_Open(UINT8 *p_handle, tAVRC_CONN_CB *p_ccb, BD_ADDR_PTR peer_addr)
+{
+    UINT16      status;
+    tAVCT_CC    cc;
+
+    cc.p_ctrl_cback = avrc_ctrl_cback;      /* Control callback */
+    cc.p_msg_cback  = avrc_msg_cback;       /* Message callback */
+    cc.pid          = UUID_SERVCLASS_AV_REMOTE_CONTROL;  /* Profile ID */
+    cc.role         = p_ccb->conn;          /* Initiator/acceptor role */
+    cc.control      = p_ccb->control;       /* Control role (Control/Target) */
+
+    status = AVCT_CreateConn(p_handle, &cc, peer_addr);
+    if (status == AVCT_SUCCESS)
+    {
+        memcpy(&avrc_cb.ccb[*p_handle], p_ccb, sizeof(tAVRC_CONN_CB));
+#if (AVRC_METADATA_INCLUDED == TRUE)
+        memset(&avrc_cb.fcb[*p_handle], 0, sizeof(tAVRC_FRAG_CB));
+        memset(&avrc_cb.rcb[*p_handle], 0, sizeof(tAVRC_RASM_CB));
+#endif
+    }
+    AVRC_TRACE_DEBUG("AVRC_Open role: %d, control:%d status:%d, handle:%d", cc.role, cc.control,
+        status, *p_handle);
+
+    return status;
+}
+
+/******************************************************************************
+**
+** Function         AVRC_Close
+**
+** Description      Close a connection opened with AVRC_Open().
+**                  This function is called when the
+**                  application is no longer using a connection.
+**
+**                  Input Parameters:
+**                      handle: Handle of this connection.
+**
+**                  Output Parameters:
+**                      None.
+**
+** Returns          AVRC_SUCCESS if successful.
+**                  AVRC_BAD_HANDLE if handle is invalid.
+**
+******************************************************************************/
+UINT16 AVRC_Close(UINT8 handle)
+{
+    AVRC_TRACE_DEBUG("AVRC_Close handle:%d", handle);
+    return AVCT_RemoveConn(handle);
+}
+
+
+/******************************************************************************
+**
+** Function         AVRC_MsgReq
+**
+** Description      This function is used to send the AVRCP byte stream in p_pkt
+**                  down to AVCTP.
+**
+**                  It is expected that p_pkt->offset is at least AVCT_MSG_OFFSET
+**                  p_pkt->layer_specific is AVCT_DATA_CTRL or AVCT_DATA_BROWSE
+**                  p_pkt->event is AVRC_OP_VENDOR, AVRC_OP_PASS_THRU or AVRC_OP_BROWSE
+**                  The above BT_HDR settings are set by the AVRC_Bld* functions.
+**
+** Returns          AVRC_SUCCESS if successful.
+**                  AVRC_BAD_HANDLE if handle is invalid.
+**
+******************************************************************************/
+UINT16 AVRC_MsgReq (UINT8 handle, UINT8 label, UINT8 ctype, BT_HDR *p_pkt)
+{
+#if (AVRC_METADATA_INCLUDED == TRUE)
+    UINT8   *p_data;
+    UINT8   cr = AVCT_CMD;
+    BOOLEAN chk_frag = TRUE;
+    UINT8   *p_start = NULL;
+    tAVRC_FRAG_CB   *p_fcb;
+    UINT16  len;
+
+    if (!p_pkt)
+        return AVRC_BAD_PARAM;
+
+    AVRC_TRACE_DEBUG("%s handle = %u label = %u ctype = %u len = %d",
+                     __func__, handle, label, ctype, p_pkt->len);
+
+    if (ctype >= AVRC_RSP_NOT_IMPL)
+        cr = AVCT_RSP;
+
+    if (p_pkt->event == AVRC_OP_VENDOR)
+    {
+        /* add AVRCP Vendor Dependent headers */
+        p_start = ((UINT8 *)(p_pkt + 1) + p_pkt->offset);
+        p_pkt->offset -= AVRC_VENDOR_HDR_SIZE;
+        p_pkt->len += AVRC_VENDOR_HDR_SIZE;
+        p_data = (UINT8 *)(p_pkt + 1) + p_pkt->offset;
+        *p_data++       = (ctype & AVRC_CTYPE_MASK);
+        *p_data++       = (AVRC_SUB_PANEL << AVRC_SUBTYPE_SHIFT);
+        *p_data++       = AVRC_OP_VENDOR;
+        AVRC_CO_ID_TO_BE_STREAM(p_data, AVRC_CO_METADATA);
+    }
+    else if (p_pkt->event == AVRC_OP_PASS_THRU)
+    {
+        /* add AVRCP Pass Through headers */
+        p_start = ((UINT8 *)(p_pkt + 1) + p_pkt->offset);
+        p_pkt->offset -= AVRC_PASS_THRU_SIZE;
+        p_pkt->len += AVRC_PASS_THRU_SIZE;
+        p_data = (UINT8 *)(p_pkt + 1) + p_pkt->offset;
+        *p_data++       = (ctype & AVRC_CTYPE_MASK);
+        *p_data++       = (AVRC_SUB_PANEL << AVRC_SUBTYPE_SHIFT);
+        *p_data++       = AVRC_OP_PASS_THRU;/* opcode */
+        *p_data++       = AVRC_ID_VENDOR;   /* operation id */
+        *p_data++       = 5;                /* operation data len */
+        AVRC_CO_ID_TO_BE_STREAM(p_data, AVRC_CO_METADATA);
+    }
+
+    /* abandon previous fragments */
+    p_fcb = &avrc_cb.fcb[handle];
+    if (p_fcb->frag_enabled)
+        p_fcb->frag_enabled = FALSE;
+
+    osi_free_and_reset((void **)&p_fcb->p_fmsg);
+
+    /* AVRCP spec has not defined any control channel commands that needs fragmentation at this level
+     * check for fragmentation only on the response */
+    if ((cr == AVCT_RSP) && (chk_frag == TRUE))
+    {
+        if (p_pkt->len > AVRC_MAX_CTRL_DATA_LEN)
+        {
+            int offset_len = MAX(AVCT_MSG_OFFSET, p_pkt->offset);
+            BT_HDR *p_pkt_new =
+                (BT_HDR *)osi_malloc(AVRC_PACKET_LEN + offset_len + BT_HDR_SIZE);
+            if (p_start != NULL) {
+                p_fcb->frag_enabled = TRUE;
+                p_fcb->p_fmsg       = p_pkt;
+                p_fcb->frag_pdu     = *p_start;
+                p_pkt               = p_pkt_new;
+                p_pkt_new           = p_fcb->p_fmsg;
+                p_pkt->len          = AVRC_MAX_CTRL_DATA_LEN;
+                p_pkt->offset       = p_pkt_new->offset;
+                p_pkt->layer_specific = p_pkt_new->layer_specific;
+                p_pkt->event = p_pkt_new->event;
+                p_data = (UINT8 *)(p_pkt+1) + p_pkt->offset;
+                p_start -= AVRC_VENDOR_HDR_SIZE;
+                memcpy (p_data, p_start, AVRC_MAX_CTRL_DATA_LEN);
+                /* use AVRC start packet type */
+                p_data += AVRC_VENDOR_HDR_SIZE;
+                p_data++; /* pdu */
+                *p_data++ = AVRC_PKT_START;
+                /* 4 pdu, pkt_type & len */
+                len = (AVRC_MAX_CTRL_DATA_LEN - AVRC_VENDOR_HDR_SIZE - AVRC_MIN_META_HDR_SIZE);
+                UINT16_TO_BE_STREAM(p_data, len);
+
+                /* prepare the left over for as an end fragment */
+                avrc_prep_end_frag (handle);
+                AVRC_TRACE_DEBUG ("%s p_pkt len:%d/%d, next len:%d", __func__,
+                                  p_pkt->len, len, p_fcb->p_fmsg->len );
+            } else {
+                /* TODO: Is this "else" block valid? Remove it? */
+                AVRC_TRACE_ERROR ("AVRC_MsgReq no buffers for fragmentation" );
+                osi_free(p_pkt);
+                return AVRC_NO_RESOURCES;
+            }
+        }
+    }
+
+    return AVCT_MsgReq( handle, label, cr, p_pkt);
+#else
+    return AVRC_NO_RESOURCES;
+#endif
+}
+
+
+/******************************************************************************
+**
+** Function         AVRC_PassCmd
+**
+** Description      Send a PASS THROUGH command to the peer device.  This
+**                  function can only be called for controller role connections.
+**                  Any response message from the peer is passed back through
+**                  the tAVRC_MSG_CBACK callback function.
+**
+**                  Input Parameters:
+**                      handle: Handle of this connection.
+**
+**                      label: Transaction label.
+**
+**                      p_msg: Pointer to PASS THROUGH message structure.
+**
+**                  Output Parameters:
+**                      None.
+**
+** Returns          AVRC_SUCCESS if successful.
+**                  AVRC_BAD_HANDLE if handle is invalid.
+**
+******************************************************************************/
+UINT16 AVRC_PassCmd(UINT8 handle, UINT8 label, tAVRC_MSG_PASS *p_msg)
+{
+    BT_HDR *p_buf;
+    assert(p_msg != NULL);
+    if (p_msg)
+    {
+        p_msg->hdr.ctype    = AVRC_CMD_CTRL;
+        p_buf = avrc_pass_msg(p_msg);
+        if (p_buf)
+            return AVCT_MsgReq( handle, label, AVCT_CMD, p_buf);
+    }
+    return AVRC_NO_RESOURCES;
+}
+
+/******************************************************************************
+**
+** Function         AVRC_PassRsp
+**
+** Description      Send a PASS THROUGH response to the peer device.  This
+**                  function can only be called for target role connections.
+**                  This function must be called when a PASS THROUGH command
+**                  message is received from the peer through the
+**                  tAVRC_MSG_CBACK callback function.
+**
+**                  Input Parameters:
+**                      handle: Handle of this connection.
+**
+**                      label: Transaction label.  Must be the same value as
+**                      passed with the command message in the callback function.
+**
+**                      p_msg: Pointer to PASS THROUGH message structure.
+**
+**                  Output Parameters:
+**                      None.
+**
+** Returns          AVRC_SUCCESS if successful.
+**                  AVRC_BAD_HANDLE if handle is invalid.
+**
+******************************************************************************/
+UINT16 AVRC_PassRsp(UINT8 handle, UINT8 label, tAVRC_MSG_PASS *p_msg)
+{
+    BT_HDR *p_buf;
+    assert(p_msg != NULL);
+    if (p_msg)
+    {
+        p_buf = avrc_pass_msg(p_msg);
+        if (p_buf)
+            return AVCT_MsgReq( handle, label, AVCT_RSP, p_buf);
+    }
+    return AVRC_NO_RESOURCES;
+}
+
diff --git a/rtkbt/code/bt/stack/avrc/avrc_bld_ct.c b/rtkbt/code/bt/stack/avrc/avrc_bld_ct.c
new file mode 100755
index 0000000..a69f05f
--- /dev/null
+++ b/rtkbt/code/bt/stack/avrc/avrc_bld_ct.c
@@ -0,0 +1,507 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2006-2013 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+#include <string.h>
+
+#include "bt_common.h"
+#include "avrc_api.h"
+#include "avrc_defs.h"
+#include "avrc_int.h"
+
+/*****************************************************************************
+**  Global data
+*****************************************************************************/
+
+
+#if (AVRC_METADATA_INCLUDED == TRUE)
+/*******************************************************************************
+**
+** Function         avrc_bld_next_cmd
+**
+** Description      This function builds the Request Continue or Abort command.
+**
+** Returns          AVRC_STS_NO_ERROR, if the command is built successfully
+**                  Otherwise, the error code.
+**
+*******************************************************************************/
+static tAVRC_STS avrc_bld_next_cmd (tAVRC_NEXT_CMD *p_cmd, BT_HDR *p_pkt)
+{
+    UINT8   *p_data, *p_start;
+
+    AVRC_TRACE_API("avrc_bld_next_cmd");
+
+    /* get the existing length, if any, and also the num attributes */
+    p_start = (UINT8 *)(p_pkt + 1) + p_pkt->offset;
+    p_data = p_start + 2; /* pdu + rsvd */
+
+    /* add fixed lenth 1 - pdu_id (1) */
+    UINT16_TO_BE_STREAM(p_data, 1);
+    UINT8_TO_BE_STREAM(p_data, p_cmd->target_pdu);
+    p_pkt->len = (p_data - p_start);
+
+    return AVRC_STS_NO_ERROR;
+}
+
+/*****************************************************************************
+**  the following commands are introduced in AVRCP 1.4
+*****************************************************************************/
+
+#if (AVRC_ADV_CTRL_INCLUDED == TRUE)
+/*******************************************************************************
+**
+** Function         avrc_bld_set_abs_volume_cmd
+**
+** Description      This function builds the Set Absolute Volume command.
+**
+** Returns          AVRC_STS_NO_ERROR, if the command is built successfully
+**                  Otherwise, the error code.
+**
+*******************************************************************************/
+static tAVRC_STS avrc_bld_set_abs_volume_cmd (tAVRC_SET_VOLUME_CMD *p_cmd, BT_HDR *p_pkt)
+{
+    UINT8   *p_data, *p_start;
+
+    AVRC_TRACE_API("avrc_bld_set_abs_volume_cmd");
+    /* get the existing length, if any, and also the num attributes */
+    p_start = (UINT8 *)(p_pkt + 1) + p_pkt->offset;
+    p_data = p_start + 2; /* pdu + rsvd */
+    /* add fixed lenth 1 - volume (1) */
+    UINT16_TO_BE_STREAM(p_data, 1);
+    UINT8_TO_BE_STREAM(p_data, (AVRC_MAX_VOLUME & p_cmd->volume));
+    p_pkt->len = (p_data - p_start);
+    return AVRC_STS_NO_ERROR;
+}
+
+/*******************************************************************************
+**
+** Function         avrc_bld_register_notifn
+**
+** Description      This function builds the register notification.
+**
+** Returns          AVRC_STS_NO_ERROR, if the command is built successfully
+**                  Otherwise, the error code.
+**
+*******************************************************************************/
+static tAVRC_STS avrc_bld_register_notifn(BT_HDR * p_pkt, UINT8 event_id, UINT32 event_param)
+{
+    UINT8   *p_data, *p_start;
+
+    AVRC_TRACE_API("avrc_bld_register_notifn");
+    /* get the existing length, if any, and also the num attributes */
+    // Set the notify value
+    p_start = (UINT8 *)(p_pkt + 1) + p_pkt->offset;
+    p_data = p_start + 2; /* pdu + rsvd */
+    /* add fixed length 5 -*/
+    UINT16_TO_BE_STREAM(p_data, 5);
+    UINT8_TO_BE_STREAM(p_data,event_id);
+    UINT32_TO_BE_STREAM(p_data, event_param);
+    p_pkt->len = (p_data - p_start);
+    return AVRC_STS_NO_ERROR;
+}
+#endif
+#if (AVRC_CTLR_INCLUDED == TRUE)
+/*******************************************************************************
+**
+** Function         avrc_bld_get_capability_cmd
+**
+** Description      This function builds the get capability command.
+**
+** Returns          AVRC_STS_NO_ERROR, if the command is built successfully
+**                  Otherwise, the error code.
+**
+*******************************************************************************/
+static tAVRC_STS avrc_bld_get_capability_cmd(BT_HDR * p_pkt, UINT8 cap_id)
+{
+    AVRC_TRACE_API("avrc_bld_get_capability_cmd");
+    UINT8 *p_start = (UINT8 *)(p_pkt + 1) + p_pkt->offset;
+    UINT8 *p_data = p_start + 2; /* pdu + rsvd */
+    /* add fixed length 1 -*/
+    UINT16_TO_BE_STREAM(p_data, 1);
+    UINT8_TO_BE_STREAM(p_data,cap_id);
+    p_pkt->len = (p_data - p_start);
+    return AVRC_STS_NO_ERROR;
+}
+
+/*******************************************************************************
+**
+** Function         avrc_bld_list_player_app_attr_cmd
+**
+** Description      This function builds the list player app attrib command.
+**
+** Returns          AVRC_STS_NO_ERROR, if the command is built successfully
+**                  Otherwise, the error code.
+**
+*******************************************************************************/
+static tAVRC_STS avrc_bld_list_player_app_attr_cmd(BT_HDR * p_pkt)
+{
+    AVRC_TRACE_API("avrc_bld_list_player_app_attr_cmd");
+    UINT8 *p_start = (UINT8 *)(p_pkt + 1) + p_pkt->offset;
+    UINT8 *p_data = p_start + 2; /* pdu + rsvd */
+    /* add fixed length 1 -*/
+    UINT16_TO_BE_STREAM(p_data, 0);
+    p_pkt->len = (p_data - p_start);
+    return AVRC_STS_NO_ERROR;
+}
+
+/*******************************************************************************
+**
+** Function         avrc_bld_list_player_app_values_cmd
+**
+** Description      This function builds the list player app values command.
+**
+** Returns          AVRC_STS_NO_ERROR, if the command is built successfully
+**                  Otherwise, the error code.
+**
+*******************************************************************************/
+static tAVRC_STS avrc_bld_list_player_app_values_cmd(BT_HDR * p_pkt, UINT8 attrib_id)
+{
+    AVRC_TRACE_API("avrc_bld_list_player_app_values_cmd");
+    UINT8 *p_start = (UINT8 *)(p_pkt + 1) + p_pkt->offset;
+    UINT8 *p_data = p_start + 2; /* pdu + rsvd */
+    /* add fixed length 1 -*/
+    UINT16_TO_BE_STREAM(p_data, 1);
+    UINT8_TO_BE_STREAM(p_data,attrib_id);
+    p_pkt->len = (p_data - p_start);
+    return AVRC_STS_NO_ERROR;
+}
+
+/*******************************************************************************
+**
+** Function         avrc_bld_get_current_player_app_values_cmd
+**
+** Description      This function builds the get current player app setting values command.
+**
+** Returns          AVRC_STS_NO_ERROR, if the command is built successfully
+**                  Otherwise, the error code.
+**
+*******************************************************************************/
+static tAVRC_STS avrc_bld_get_current_player_app_values_cmd(
+    BT_HDR * p_pkt, UINT8 num_attrib_id, UINT8* attrib_ids)
+{
+    AVRC_TRACE_API("avrc_bld_get_current_player_app_values_cmd");
+    UINT8 *p_start = (UINT8 *)(p_pkt + 1) + p_pkt->offset;
+    UINT8 *p_data = p_start + 2; /* pdu + rsvd */
+    UINT8 param_len = num_attrib_id + 1; // 1 additional to hold num attributes feild
+    /* add length -*/
+    UINT16_TO_BE_STREAM(p_data, param_len);
+    UINT8_TO_BE_STREAM(p_data,num_attrib_id);
+    for(int count = 0; count < num_attrib_id; count ++)
+    {
+        UINT8_TO_BE_STREAM(p_data,attrib_ids[count]);
+    }
+    p_pkt->len = (p_data - p_start);
+    return AVRC_STS_NO_ERROR;
+}
+
+/*******************************************************************************
+**
+** Function         avrc_bld_set_current_player_app_values_cmd
+**
+** Description      This function builds the set current player app setting values command.
+**
+** Returns          AVRC_STS_NO_ERROR, if the command is built successfully
+**                  Otherwise, the error code.
+**
+*******************************************************************************/
+static tAVRC_STS avrc_bld_set_current_player_app_values_cmd(BT_HDR * p_pkt, UINT8 num_attrib_id, tAVRC_APP_SETTING* p_val)
+{
+    AVRC_TRACE_API("avrc_bld_set_current_player_app_values_cmd");
+    UINT8 *p_start = (UINT8 *)(p_pkt + 1) + p_pkt->offset;
+    UINT8 *p_data = p_start + 2; /* pdu + rsvd */
+    /* we have to store attrib- value pair
+     * 1 additional to store num elements
+     */
+    UINT8 param_len = (2*num_attrib_id) + 1;
+    /* add length */
+    UINT16_TO_BE_STREAM(p_data, param_len);
+    UINT8_TO_BE_STREAM(p_data,num_attrib_id);
+    for(int count = 0; count < num_attrib_id; count ++)
+    {
+        UINT8_TO_BE_STREAM(p_data,p_val[count].attr_id);
+        UINT8_TO_BE_STREAM(p_data,p_val[count].attr_val);
+    }
+    p_pkt->len = (p_data - p_start);
+    return AVRC_STS_NO_ERROR;
+}
+
+/*******************************************************************************
+**
+** Function         avrc_bld_get_player_app_setting_attr_text_cmd
+**
+** Description      This function builds the get player app setting attribute text command.
+**
+** Returns          AVRC_STS_NO_ERROR, if the command is built successfully
+**                  Otherwise, the error code.
+**
+*******************************************************************************/
+static tAVRC_STS avrc_bld_get_player_app_setting_attr_text_cmd (BT_HDR * p_pkt, tAVRC_GET_APP_ATTR_TXT_CMD *p_cmd)
+{
+    AVRC_TRACE_API("%s", __FUNCTION__);
+
+    UINT8 *p_start = (UINT8 *)(p_pkt + 1) + p_pkt->offset;
+    UINT8 *p_data = p_start + 2; /* pdu + rsvd */
+
+    UINT8 param_len = p_cmd->num_attr + 1;
+    /* add length */
+    UINT16_TO_BE_STREAM(p_data, param_len);
+    UINT8_TO_BE_STREAM(p_data, p_cmd->num_attr);
+    for(int count = 0; count < p_cmd->num_attr; count++)
+    {
+        UINT8_TO_BE_STREAM(p_data, p_cmd->attrs[count]);
+    }
+    p_pkt->len = (p_data - p_start);
+    return AVRC_STS_NO_ERROR;
+}
+
+/*******************************************************************************
+**
+** Function         avrc_bld_get_player_app_setting_value_text_cmd
+**
+** Description      This function builds the get player app setting value text command.
+**
+** Returns          AVRC_STS_NO_ERROR, if the command is built successfully
+**                  Otherwise, the error code.
+**
+*******************************************************************************/
+static tAVRC_STS avrc_bld_get_player_app_setting_value_text_cmd (BT_HDR * p_pkt, tAVRC_GET_APP_VAL_TXT_CMD *p_cmd)
+{
+    AVRC_TRACE_API("%s", __FUNCTION__);
+
+    UINT8 *p_start = (UINT8 *)(p_pkt + 1) + p_pkt->offset;
+    UINT8 *p_data = p_start + 2; /* pdu + rsvd */
+
+    UINT8 param_len = p_cmd->num_val + 1;
+    /* add length */
+    UINT16_TO_BE_STREAM(p_data, param_len);
+    UINT8_TO_BE_STREAM(p_data, p_cmd->num_val);
+    for(int count = 0; count < p_cmd->num_val; count++)
+    {
+        UINT8_TO_BE_STREAM(p_data, p_cmd->vals[count]);
+    }
+    p_pkt->len = (p_data - p_start);
+    return AVRC_STS_NO_ERROR;
+}
+
+/*******************************************************************************
+**
+** Function         avrc_bld_get_element_attr_cmd
+**
+** Description      This function builds the get element attribute command.
+**
+** Returns          AVRC_STS_NO_ERROR, if the command is built successfully
+**                  Otherwise, the error code.
+**
+*******************************************************************************/
+static tAVRC_STS avrc_bld_get_element_attr_cmd(BT_HDR * p_pkt, UINT8 num_attrib, UINT32* attrib_ids)
+{
+    AVRC_TRACE_API("avrc_bld_get_element_attr_cmd");
+    UINT8 *p_start = (UINT8 *)(p_pkt + 1) + p_pkt->offset;
+    UINT8 *p_data = p_start + 2; /* pdu + rsvd */
+    /* we have to store attrib- value pair
+     * 1 additional to store num elements
+     */
+    UINT8 param_len = (4*num_attrib) + 9;
+    /* add length */
+    UINT16_TO_BE_STREAM(p_data, param_len);
+    /* 8 bytes of identifier as 0 (playing)*/
+    UINT32_TO_BE_STREAM(p_data,0);
+    UINT32_TO_BE_STREAM(p_data,0);
+    UINT8_TO_BE_STREAM(p_data,num_attrib);
+    for(int count = 0; count < num_attrib; count ++)
+    {
+        UINT32_TO_BE_STREAM(p_data,attrib_ids[count]);
+    }
+    p_pkt->len = (p_data - p_start);
+    return AVRC_STS_NO_ERROR;
+}
+
+/*******************************************************************************
+**
+** Function         avrc_bld_get_play_status_cmd
+**
+** Description      This function builds the get play status command.
+**
+** Returns          AVRC_STS_NO_ERROR, if the command is built successfully
+**                  Otherwise, the error code.
+**
+*******************************************************************************/
+static tAVRC_STS avrc_bld_get_play_status_cmd(BT_HDR * p_pkt)
+{
+    AVRC_TRACE_API("avrc_bld_list_player_app_attr_cmd");
+    UINT8 *p_start = (UINT8 *)(p_pkt + 1) + p_pkt->offset;
+    UINT8 *p_data = p_start + 2; /* pdu + rsvd */
+    /* add fixed length 1 -*/
+    UINT16_TO_BE_STREAM(p_data, 0);
+    p_pkt->len = (p_data - p_start);
+    return AVRC_STS_NO_ERROR;
+}
+#endif
+
+/*******************************************************************************
+**
+** Function         avrc_bld_init_cmd_buffer
+**
+** Description      This function initializes the command buffer based on PDU
+**
+** Returns          NULL, if no GKI buffer or failure to build the message.
+**                  Otherwise, the GKI buffer that contains the initialized message.
+**
+*******************************************************************************/
+static BT_HDR *avrc_bld_init_cmd_buffer(tAVRC_COMMAND *p_cmd)
+{
+    UINT8  opcode = avrc_opcode_from_pdu(p_cmd->pdu);
+    AVRC_TRACE_API("avrc_bld_init_cmd_buffer: pdu=%x, opcode=%x", p_cmd->pdu, opcode);
+
+    UINT16 offset = 0;
+    switch (opcode)
+    {
+    case AVRC_OP_PASS_THRU:
+        offset  = AVRC_MSG_PASS_THRU_OFFSET;
+        break;
+
+    case AVRC_OP_VENDOR:
+        offset  = AVRC_MSG_VENDOR_OFFSET;
+        break;
+    }
+
+    /* allocate and initialize the buffer */
+    BT_HDR *p_pkt = (BT_HDR *)osi_malloc(AVRC_META_CMD_BUF_SIZE);
+    UINT8 *p_data, *p_start;
+
+    p_pkt->layer_specific = AVCT_DATA_CTRL;
+    p_pkt->event = opcode;
+    p_pkt->offset = offset;
+    p_data = (UINT8 *)(p_pkt + 1) + p_pkt->offset;
+    p_start = p_data;
+
+    /* pass thru - group navigation - has a two byte op_id, so dont do it here */
+    if (opcode != AVRC_OP_PASS_THRU)
+        *p_data++ = p_cmd->pdu;
+
+    switch (opcode) {
+    case AVRC_OP_VENDOR:
+        /* reserved 0, packet_type 0 */
+        UINT8_TO_BE_STREAM(p_data, 0);
+        /* continue to the next "case to add length */
+        /* add fixed lenth - 0 */
+        UINT16_TO_BE_STREAM(p_data, 0);
+        break;
+    }
+
+    p_pkt->len = (p_data - p_start);
+    p_cmd->cmd.opcode = opcode;
+
+    return p_pkt;
+}
+
+/*******************************************************************************
+**
+** Function         AVRC_BldCommand
+**
+** Description      This function builds the given AVRCP command to the given
+**                  GKI buffer
+**
+** Returns          AVRC_STS_NO_ERROR, if the command is built successfully
+**                  Otherwise, the error code.
+**
+*******************************************************************************/
+tAVRC_STS AVRC_BldCommand( tAVRC_COMMAND *p_cmd, BT_HDR **pp_pkt)
+{
+    tAVRC_STS status = AVRC_STS_BAD_PARAM;
+    BOOLEAN alloc = FALSE;
+    AVRC_TRACE_API("AVRC_BldCommand: pdu=%x status=%x", p_cmd->cmd.pdu, p_cmd->cmd.status);
+    if (!p_cmd || !pp_pkt)
+    {
+        AVRC_TRACE_API("AVRC_BldCommand. Invalid parameters passed. p_cmd=%p, pp_pkt=%p",
+            p_cmd, pp_pkt);
+        return AVRC_STS_BAD_PARAM;
+    }
+
+    if (*pp_pkt == NULL)
+    {
+        if ((*pp_pkt = avrc_bld_init_cmd_buffer(p_cmd)) == NULL)
+        {
+            AVRC_TRACE_API("AVRC_BldCommand: Failed to initialize command buffer");
+            return AVRC_STS_INTERNAL_ERR;
+        }
+        alloc = TRUE;
+    }
+    status = AVRC_STS_NO_ERROR;
+    BT_HDR* p_pkt = *pp_pkt;
+
+    switch (p_cmd->pdu)
+    {
+    case AVRC_PDU_REQUEST_CONTINUATION_RSP:     /*        0x40 */
+        status = avrc_bld_next_cmd(&p_cmd->continu, p_pkt);
+        break;
+
+    case AVRC_PDU_ABORT_CONTINUATION_RSP:       /*          0x41 */
+        status = avrc_bld_next_cmd(&p_cmd->abort, p_pkt);
+        break;
+#if (AVRC_ADV_CTRL_INCLUDED == TRUE)
+    case AVRC_PDU_SET_ABSOLUTE_VOLUME:         /* 0x50 */
+        status = avrc_bld_set_abs_volume_cmd(&p_cmd->volume, p_pkt);
+        break;
+#endif
+    case AVRC_PDU_REGISTER_NOTIFICATION:      /* 0x31 */
+#if (AVRC_ADV_CTRL_INCLUDED == TRUE)
+        status=avrc_bld_register_notifn(p_pkt,p_cmd->reg_notif.event_id,p_cmd->reg_notif.param);
+#endif
+        break;
+#if (AVRC_CTLR_INCLUDED == TRUE)
+    case AVRC_PDU_GET_CAPABILITIES:
+        status = avrc_bld_get_capability_cmd(p_pkt, p_cmd->get_caps.capability_id);
+        break;
+    case AVRC_PDU_LIST_PLAYER_APP_ATTR:
+        status = avrc_bld_list_player_app_attr_cmd(p_pkt);
+        break;
+    case AVRC_PDU_LIST_PLAYER_APP_VALUES:
+        status = avrc_bld_list_player_app_values_cmd(p_pkt,p_cmd->list_app_values.attr_id);
+        break;
+    case AVRC_PDU_GET_CUR_PLAYER_APP_VALUE:
+        status = avrc_bld_get_current_player_app_values_cmd(p_pkt,
+             p_cmd->get_cur_app_val.num_attr,p_cmd->get_cur_app_val.attrs);
+        break;
+    case AVRC_PDU_SET_PLAYER_APP_VALUE:
+        status = avrc_bld_set_current_player_app_values_cmd(p_pkt,
+                     p_cmd->set_app_val.num_val,p_cmd->set_app_val.p_vals);
+        break;
+    case AVRC_PDU_GET_PLAYER_APP_ATTR_TEXT:
+        avrc_bld_get_player_app_setting_attr_text_cmd(p_pkt, &p_cmd->get_app_attr_txt);
+        break;
+    case AVRC_PDU_GET_PLAYER_APP_VALUE_TEXT:
+        avrc_bld_get_player_app_setting_value_text_cmd(p_pkt, &p_cmd->get_app_val_txt);
+        break;
+    case AVRC_PDU_GET_ELEMENT_ATTR:
+        status = avrc_bld_get_element_attr_cmd(p_pkt,
+              p_cmd->get_elem_attrs.num_attr,p_cmd->get_elem_attrs.attrs);
+        break;
+    case AVRC_PDU_GET_PLAY_STATUS:
+        status = avrc_bld_get_play_status_cmd(p_pkt);
+        break;
+#endif
+    }
+
+    if (alloc && (status != AVRC_STS_NO_ERROR) )
+    {
+        osi_free(p_pkt);
+        *pp_pkt = NULL;
+    }
+    AVRC_TRACE_API("AVRC_BldCommand: returning %d", status);
+    return status;
+}
+#endif /* (AVRC_METADATA_INCLUDED == TRUE) */
diff --git a/rtkbt/code/bt/stack/avrc/avrc_bld_tg.c b/rtkbt/code/bt/stack/avrc/avrc_bld_tg.c
new file mode 100755
index 0000000..129b386
--- /dev/null
+++ b/rtkbt/code/bt/stack/avrc/avrc_bld_tg.c
@@ -0,0 +1,994 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2003-2013 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+#include <string.h>
+
+#include "bt_common.h"
+#include "avrc_api.h"
+#include "avrc_defs.h"
+#include "avrc_int.h"
+#include "bt_utils.h"
+
+/*****************************************************************************
+**  Global data
+*****************************************************************************/
+#if (AVRC_METADATA_INCLUDED == TRUE)
+
+/*******************************************************************************
+**
+** Function         avrc_bld_get_capability_rsp
+**
+** Description      This function builds the Get Capability response.
+**
+** Returns          AVRC_STS_NO_ERROR, if the response is built successfully
+**                  Otherwise, the error code.
+**
+*******************************************************************************/
+static tAVRC_STS avrc_bld_get_capability_rsp (tAVRC_GET_CAPS_RSP *p_rsp, BT_HDR *p_pkt)
+{
+    UINT8   *p_data, *p_start, *p_len, *p_count;
+    UINT16  len = 0;
+    UINT8   xx;
+    UINT32  *p_company_id;
+    UINT8   *p_event_id;
+    tAVRC_STS status = AVRC_STS_NO_ERROR;
+
+    if (!(AVRC_IS_VALID_CAP_ID(p_rsp->capability_id)))
+    {
+        AVRC_TRACE_ERROR("%s bad parameter. p_rsp: %x", __func__, p_rsp);
+        status = AVRC_STS_BAD_PARAM;
+        return status;
+    }
+
+    AVRC_TRACE_API("%s", __func__);
+    /* get the existing length, if any, and also the num attributes */
+    p_start = (UINT8 *)(p_pkt + 1) + p_pkt->offset;
+    p_data = p_len = p_start + 2; /* pdu + rsvd */
+
+    BE_STREAM_TO_UINT16(len, p_data);
+    UINT8_TO_BE_STREAM(p_data, p_rsp->capability_id);
+    p_count = p_data;
+
+    if (len == 0)
+    {
+        *p_count = p_rsp->count;
+        p_data++;
+        len = 2; /* move past the capability_id and count */
+    }
+    else
+    {
+        p_data = p_start + p_pkt->len;
+        *p_count += p_rsp->count;
+    }
+
+    if (p_rsp->capability_id == AVRC_CAP_COMPANY_ID)
+    {
+        p_company_id = p_rsp->param.company_id;
+        for (xx=0; xx< p_rsp->count; xx++)
+        {
+            UINT24_TO_BE_STREAM(p_data, p_company_id[xx]);
+        }
+        len += p_rsp->count * 3;
+    }
+    else
+    {
+        p_event_id = p_rsp->param.event_id;
+        *p_count = 0;
+        for (xx=0; xx< p_rsp->count; xx++)
+        {
+            if (AVRC_IS_VALID_EVENT_ID(p_event_id[xx]))
+            {
+                (*p_count)++;
+                UINT8_TO_BE_STREAM(p_data, p_event_id[xx]);
+            }
+        }
+        len += (*p_count);
+    }
+    UINT16_TO_BE_STREAM(p_len, len);
+    p_pkt->len = (p_data - p_start);
+    status = AVRC_STS_NO_ERROR;
+
+    return status;
+}
+
+/*******************************************************************************
+**
+** Function         avrc_bld_list_app_settings_attr_rsp
+**
+** Description      This function builds the List Application Settings Attribute
+**                  response.
+**
+** Returns          AVRC_STS_NO_ERROR, if the response is built successfully
+**                  Otherwise, the error code.
+**
+*******************************************************************************/
+static tAVRC_STS avrc_bld_list_app_settings_attr_rsp (tAVRC_LIST_APP_ATTR_RSP *p_rsp, BT_HDR *p_pkt)
+{
+    UINT8   *p_data, *p_start, *p_len, *p_num;
+    UINT16  len = 0;
+    UINT8   xx;
+
+    AVRC_TRACE_API("%s", __func__);
+    /* get the existing length, if any, and also the num attributes */
+    p_start = (UINT8 *)(p_pkt + 1) + p_pkt->offset;
+    p_data = p_len = p_start + 2; /* pdu + rsvd */
+
+    BE_STREAM_TO_UINT16(len, p_data);
+    p_num = p_data;
+    if (len == 0)
+    {
+        /* first time initialize the attribute count */
+        *p_num = 0;
+        p_data++;
+    }
+    else
+    {
+        p_data = p_start + p_pkt->len;
+    }
+
+    for (xx=0; xx<p_rsp->num_attr; xx++)
+    {
+        if(AVRC_IsValidPlayerAttr(p_rsp->attrs[xx]))
+        {
+            (*p_num)++;
+            UINT8_TO_BE_STREAM(p_data, p_rsp->attrs[xx]);
+        }
+    }
+
+    len = *p_num + 1;
+    UINT16_TO_BE_STREAM(p_len, len);
+    p_pkt->len = (p_data - p_start);
+
+    return AVRC_STS_NO_ERROR;
+}
+
+/*******************************************************************************
+**
+** Function         avrc_bld_list_app_settings_values_rsp
+**
+** Description      This function builds the List Application Setting Values
+**                  response.
+**
+** Returns          AVRC_STS_NO_ERROR, if the response is built successfully
+**                  Otherwise, the error code.
+**
+*******************************************************************************/
+static tAVRC_STS avrc_bld_list_app_settings_values_rsp (tAVRC_LIST_APP_VALUES_RSP *p_rsp,
+    BT_HDR *p_pkt)
+{
+    UINT8   *p_data, *p_start, *p_len, *p_num;
+    UINT8   xx;
+    UINT16  len;
+
+    AVRC_TRACE_API("%s", __func__);
+
+    p_start = (UINT8 *)(p_pkt + 1) + p_pkt->offset;
+    p_data = p_len = p_start + 2; /* pdu + rsvd */
+
+    /* get the existing length, if any, and also the num attributes */
+    BE_STREAM_TO_UINT16(len, p_data);
+    p_num = p_data;
+    /* first time initialize the attribute count */
+    if (len == 0)
+    {
+        *p_num = p_rsp->num_val;
+        p_data++;
+    }
+    else
+    {
+        p_data = p_start + p_pkt->len;
+        *p_num += p_rsp->num_val;
+    }
+
+
+    for (xx=0; xx<p_rsp->num_val; xx++)
+    {
+        UINT8_TO_BE_STREAM(p_data, p_rsp->vals[xx]);
+    }
+
+    len = *p_num + 1;
+    UINT16_TO_BE_STREAM(p_len, len);
+    p_pkt->len = (p_data - p_start);
+    return AVRC_STS_NO_ERROR;
+}
+
+/*******************************************************************************
+**
+** Function         avrc_bld_get_cur_app_setting_value_rsp
+**
+** Description      This function builds the Get Current Application Setting Value
+**                  response.
+**
+** Returns          AVRC_STS_NO_ERROR, if the response is built successfully
+**                  Otherwise, the error code.
+**
+*******************************************************************************/
+static tAVRC_STS avrc_bld_get_cur_app_setting_value_rsp (tAVRC_GET_CUR_APP_VALUE_RSP *p_rsp,
+    BT_HDR *p_pkt)
+{
+    UINT8   *p_data, *p_start, *p_len, *p_count;
+    UINT16  len;
+    UINT8   xx;
+
+    if (!p_rsp->p_vals)
+    {
+        AVRC_TRACE_ERROR("%s NULL parameter", __func__);
+        return AVRC_STS_BAD_PARAM;
+    }
+
+    AVRC_TRACE_API("%s", __func__);
+    /* get the existing length, if any, and also the num attributes */
+    p_start = (UINT8 *)(p_pkt + 1) + p_pkt->offset;
+    p_data = p_len = p_start + 2; /* pdu + rsvd */
+
+    BE_STREAM_TO_UINT16(len, p_data);
+    p_count = p_data;
+    if (len == 0)
+    {
+        /* first time initialize the attribute count */
+        *p_count = 0;
+        p_data++;
+    }
+    else
+    {
+        p_data = p_start + p_pkt->len;
+    }
+
+    for (xx=0; xx<p_rsp->num_val; xx++)
+    {
+        if (avrc_is_valid_player_attrib_value(p_rsp->p_vals[xx].attr_id, p_rsp->p_vals[xx].attr_val))
+        {
+            (*p_count)++;
+            UINT8_TO_BE_STREAM(p_data, p_rsp->p_vals[xx].attr_id);
+            UINT8_TO_BE_STREAM(p_data, p_rsp->p_vals[xx].attr_val);
+        }
+    }
+    len = ((*p_count) << 1) + 1;
+    UINT16_TO_BE_STREAM(p_len, len);
+    p_pkt->len = (p_data - p_start);
+
+    return AVRC_STS_NO_ERROR;
+}
+
+/*******************************************************************************
+**
+** Function         avrc_bld_set_app_setting_value_rsp
+**
+** Description      This function builds the Set Application Setting Value
+**                  response.
+**
+** Returns          AVRC_STS_NO_ERROR, if the response is built successfully
+**                  Otherwise, the error code.
+**
+*******************************************************************************/
+static tAVRC_STS avrc_bld_set_app_setting_value_rsp (tAVRC_RSP *p_rsp, BT_HDR *p_pkt)
+{
+    UNUSED(p_rsp);
+    UNUSED(p_pkt);
+
+    /* nothing to be added. */
+    AVRC_TRACE_API("%s", __func__);
+    return AVRC_STS_NO_ERROR;
+}
+
+/*******************************************************************************
+**
+** Function         avrc_bld_app_setting_text_rsp
+**
+** Description      This function builds the Get Application Settings Attribute Text
+**                  or Get Application Settings Value Text response.
+**
+** Returns          AVRC_STS_NO_ERROR, if the response is built successfully
+**                  Otherwise, the error code.
+**
+*******************************************************************************/
+static tAVRC_STS avrc_bld_app_setting_text_rsp (tAVRC_GET_APP_ATTR_TXT_RSP *p_rsp, BT_HDR *p_pkt)
+{
+    UINT8   *p_data, *p_start, *p_len, *p_count;
+    UINT16  len, len_left;
+    UINT8   xx;
+    tAVRC_STS   sts = AVRC_STS_NO_ERROR;
+    UINT8       num_added = 0;
+
+    if (!p_rsp->p_attrs)
+    {
+        AVRC_TRACE_ERROR("%s NULL parameter", __func__);
+        return AVRC_STS_BAD_PARAM;
+    }
+    /* get the existing length, if any, and also the num attributes */
+    p_start = (UINT8 *)(p_pkt + 1) + p_pkt->offset;
+    p_data = p_len = p_start + 2; /* pdu + rsvd */
+
+    /*
+     * NOTE: The buffer is allocated within avrc_bld_init_rsp_buffer(), and is
+     * always of size BT_DEFAULT_BUFFER_SIZE.
+     */
+    len_left = BT_DEFAULT_BUFFER_SIZE - BT_HDR_SIZE - p_pkt->offset - p_pkt->len;
+
+    BE_STREAM_TO_UINT16(len, p_data);
+    p_count = p_data;
+
+    if (len == 0)
+    {
+        *p_count = 0;
+        p_data++;
+    }
+    else
+    {
+        p_data = p_start + p_pkt->len;
+    }
+
+    for (xx=0; xx<p_rsp->num_attr; xx++)
+    {
+        if  (len_left < (p_rsp->p_attrs[xx].str_len + 4))
+        {
+            AVRC_TRACE_ERROR("%s out of room (str_len:%d, left:%d)",
+                             __func__, xx, p_rsp->p_attrs[xx].str_len, len_left);
+            p_rsp->num_attr = num_added;
+            sts = AVRC_STS_INTERNAL_ERR;
+            break;
+        }
+        if ( !p_rsp->p_attrs[xx].str_len || !p_rsp->p_attrs[xx].p_str )
+        {
+            AVRC_TRACE_ERROR("%s NULL attr text[%d]", __func__, xx);
+            continue;
+        }
+        UINT8_TO_BE_STREAM(p_data, p_rsp->p_attrs[xx].attr_id);
+        UINT16_TO_BE_STREAM(p_data, p_rsp->p_attrs[xx].charset_id);
+        UINT8_TO_BE_STREAM(p_data, p_rsp->p_attrs[xx].str_len);
+        ARRAY_TO_BE_STREAM(p_data, p_rsp->p_attrs[xx].p_str, p_rsp->p_attrs[xx].str_len);
+        (*p_count)++;
+        num_added++;
+    }
+    len = p_data - p_count;
+    UINT16_TO_BE_STREAM(p_len, len);
+    p_pkt->len = (p_data - p_start);
+
+    return sts;
+}
+
+/*******************************************************************************
+**
+** Function         avrc_bld_get_app_setting_attr_text_rsp
+**
+** Description      This function builds the Get Application Setting Attribute Text
+**                  response.
+**
+** Returns          AVRC_STS_NO_ERROR, if the response is built successfully
+**                  Otherwise, the error code.
+**
+*******************************************************************************/
+static tAVRC_STS avrc_bld_get_app_setting_attr_text_rsp (tAVRC_GET_APP_ATTR_TXT_RSP *p_rsp,
+    BT_HDR *p_pkt)
+{
+    AVRC_TRACE_API("%s", __func__);
+    return avrc_bld_app_setting_text_rsp(p_rsp, p_pkt);
+}
+
+/*******************************************************************************
+**
+** Function         avrc_bld_get_app_setting_value_text_rsp
+**
+** Description      This function builds the Get Application Setting Value Text
+**                  response.
+**
+** Returns          AVRC_STS_NO_ERROR, if the response is built successfully
+**                  Otherwise, the error code.
+**
+*******************************************************************************/
+static tAVRC_STS avrc_bld_get_app_setting_value_text_rsp (tAVRC_GET_APP_ATTR_TXT_RSP *p_rsp,
+    BT_HDR *p_pkt)
+{
+    AVRC_TRACE_API("%s", __func__);
+    return avrc_bld_app_setting_text_rsp(p_rsp, p_pkt);
+}
+
+/*******************************************************************************
+**
+** Function         avrc_bld_inform_charset_rsp
+**
+** Description      This function builds the Inform Displayable Character Set
+**                  response.
+**
+** Returns          AVRC_STS_NO_ERROR, if the response is built successfully
+**                  Otherwise, the error code.
+**
+*******************************************************************************/
+static tAVRC_STS avrc_bld_inform_charset_rsp (tAVRC_RSP *p_rsp, BT_HDR *p_pkt)
+{
+    UNUSED(p_rsp);
+    UNUSED(p_pkt);
+
+    /* nothing to be added. */
+    AVRC_TRACE_API("%s", __func__);
+    return AVRC_STS_NO_ERROR;
+}
+
+/*******************************************************************************
+**
+** Function         avrc_bld_inform_battery_status_rsp
+**
+** Description      This function builds the Inform Battery Status
+**                  response.
+**
+** Returns          AVRC_STS_NO_ERROR, if the response is built successfully
+**                  Otherwise, the error code.
+**
+*******************************************************************************/
+static tAVRC_STS avrc_bld_inform_battery_status_rsp (tAVRC_RSP *p_rsp, BT_HDR *p_pkt)
+{
+    UNUSED(p_rsp);
+    UNUSED(p_pkt);
+
+    /* nothing to be added. */
+    AVRC_TRACE_API("%s", __func__);
+    return AVRC_STS_NO_ERROR;
+}
+
+/*******************************************************************************
+**
+** Function         avrc_bld_get_elem_attrs_rsp
+**
+** Description      This function builds the Get Element Attributes
+**                  response.
+**
+** Returns          AVRC_STS_NO_ERROR, if the response is built successfully
+**                  Otherwise, the error code.
+**
+*******************************************************************************/
+static tAVRC_STS avrc_bld_get_elem_attrs_rsp (tAVRC_GET_ELEM_ATTRS_RSP *p_rsp, BT_HDR *p_pkt)
+{
+    UINT8   *p_data, *p_start, *p_len, *p_count;
+    UINT16  len;
+    UINT8   xx;
+
+    AVRC_TRACE_API("%s", __func__);
+    if (!p_rsp->p_attrs)
+    {
+        AVRC_TRACE_ERROR("%s NULL parameter", __func__);
+        return AVRC_STS_BAD_PARAM;
+    }
+
+    /* get the existing length, if any, and also the num attributes */
+    p_start = (UINT8 *)(p_pkt + 1) + p_pkt->offset;
+    p_data = p_len = p_start + 2; /* pdu + rsvd */
+
+    BE_STREAM_TO_UINT16(len, p_data);
+    p_count = p_data;
+
+    if (len == 0)
+    {
+        *p_count = 0;
+        p_data++;
+    }
+    else
+    {
+        p_data = p_start + p_pkt->len;
+    }
+
+    for (xx=0; xx<p_rsp->num_attr; xx++)
+    {
+        if (!AVRC_IS_VALID_MEDIA_ATTRIBUTE(p_rsp->p_attrs[xx].attr_id))
+        {
+            AVRC_TRACE_ERROR("%s invalid attr id[%d]: %d",
+                             __func__, xx, p_rsp->p_attrs[xx].attr_id);
+            continue;
+        }
+        if ( !p_rsp->p_attrs[xx].name.p_str )
+        {
+            p_rsp->p_attrs[xx].name.str_len = 0;
+        }
+        UINT32_TO_BE_STREAM(p_data, p_rsp->p_attrs[xx].attr_id);
+        UINT16_TO_BE_STREAM(p_data, p_rsp->p_attrs[xx].name.charset_id);
+        UINT16_TO_BE_STREAM(p_data, p_rsp->p_attrs[xx].name.str_len);
+        ARRAY_TO_BE_STREAM(p_data, p_rsp->p_attrs[xx].name.p_str, p_rsp->p_attrs[xx].name.str_len);
+        (*p_count)++;
+    }
+    len = p_data - p_count;
+    UINT16_TO_BE_STREAM(p_len, len);
+    p_pkt->len = (p_data - p_start);
+    return AVRC_STS_NO_ERROR;
+}
+
+/*******************************************************************************
+**
+** Function         avrc_bld_get_play_status_rsp
+**
+** Description      This function builds the Get Play Status
+**                  response.
+**
+** Returns          AVRC_STS_NO_ERROR, if the response is built successfully
+**                  Otherwise, the error code.
+**
+*******************************************************************************/
+static tAVRC_STS avrc_bld_get_play_status_rsp (tAVRC_GET_PLAY_STATUS_RSP *p_rsp, BT_HDR *p_pkt)
+{
+    UINT8   *p_data, *p_start;
+
+    AVRC_TRACE_API("avrc_bld_get_play_status_rsp");
+    p_start = (UINT8 *)(p_pkt + 1) + p_pkt->offset;
+    p_data = p_start + 2;
+
+    /* add fixed lenth - song len(4) + song position(4) + status(1) */
+    UINT16_TO_BE_STREAM(p_data, 9);
+    UINT32_TO_BE_STREAM(p_data, p_rsp->song_len);
+    UINT32_TO_BE_STREAM(p_data, p_rsp->song_pos);
+    UINT8_TO_BE_STREAM(p_data, p_rsp->play_status);
+    p_pkt->len = (p_data - p_start);
+
+    return AVRC_STS_NO_ERROR;
+}
+
+/*******************************************************************************
+**
+** Function         avrc_bld_notify_rsp
+**
+** Description      This function builds the Notification response.
+**
+** Returns          AVRC_STS_NO_ERROR, if the response is built successfully
+**                  Otherwise, the error code.
+**
+*******************************************************************************/
+static tAVRC_STS avrc_bld_notify_rsp (tAVRC_REG_NOTIF_RSP *p_rsp, BT_HDR *p_pkt)
+{
+    UINT8   *p_data, *p_start;
+    UINT8   *p_len;
+    UINT16  len = 0;
+    UINT8   xx;
+    tAVRC_STS status = AVRC_STS_NO_ERROR;
+
+    AVRC_TRACE_API("%s event_id %d", __func__, p_rsp->event_id);
+
+    p_start = (UINT8 *)(p_pkt + 1) + p_pkt->offset;
+    p_data = p_len = p_start + 2; /* pdu + rsvd */
+    p_data += 2;
+
+    UINT8_TO_BE_STREAM(p_data, p_rsp->event_id);
+    switch (p_rsp->event_id)
+    {
+    case AVRC_EVT_PLAY_STATUS_CHANGE:       /* 0x01 */
+        /* p_rsp->param.play_status >= AVRC_PLAYSTATE_STOPPED is always TRUE */
+        if ((p_rsp->param.play_status <= AVRC_PLAYSTATE_REV_SEEK) ||
+            (p_rsp->param.play_status == AVRC_PLAYSTATE_ERROR) )
+        {
+            UINT8_TO_BE_STREAM(p_data, p_rsp->param.play_status);
+            len = 2;
+        }
+        else
+        {
+            AVRC_TRACE_ERROR("%s bad play state", __func__);
+            status = AVRC_STS_BAD_PARAM;
+        }
+        break;
+
+    case AVRC_EVT_TRACK_CHANGE:             /* 0x02 */
+        ARRAY_TO_BE_STREAM(p_data, p_rsp->param.track, AVRC_UID_SIZE);
+        len = (UINT8)(AVRC_UID_SIZE + 1);
+        break;
+
+    case AVRC_EVT_TRACK_REACHED_END:        /* 0x03 */
+    case AVRC_EVT_TRACK_REACHED_START:      /* 0x04 */
+        len = 1;
+        break;
+
+    case AVRC_EVT_PLAY_POS_CHANGED:         /* 0x05 */
+        UINT32_TO_BE_STREAM(p_data, p_rsp->param.play_pos);
+        len = 5;
+        break;
+
+    case AVRC_EVT_BATTERY_STATUS_CHANGE:    /* 0x06 */
+        if (AVRC_IS_VALID_BATTERY_STATUS(p_rsp->param.battery_status))
+        {
+            UINT8_TO_BE_STREAM(p_data, p_rsp->param.battery_status);
+            len = 2;
+        }
+        else
+        {
+            AVRC_TRACE_ERROR("%s bad battery status", __func__);
+            status = AVRC_STS_BAD_PARAM;
+        }
+        break;
+
+    case AVRC_EVT_SYSTEM_STATUS_CHANGE:     /* 0x07 */
+        if (AVRC_IS_VALID_SYSTEM_STATUS(p_rsp->param.system_status))
+        {
+            UINT8_TO_BE_STREAM(p_data, p_rsp->param.system_status);
+            len = 2;
+        }
+        else
+        {
+            AVRC_TRACE_ERROR("%s bad system status", __func__);
+            status = AVRC_STS_BAD_PARAM;
+        }
+        break;
+
+    case AVRC_EVT_APP_SETTING_CHANGE:       /* 0x08 */
+        if (p_rsp->param.player_setting.num_attr > AVRC_MAX_APP_SETTINGS)
+            p_rsp->param.player_setting.num_attr = AVRC_MAX_APP_SETTINGS;
+
+        if (p_rsp->param.player_setting.num_attr > 0)
+        {
+            UINT8_TO_BE_STREAM(p_data, p_rsp->param.player_setting.num_attr);
+            len = 2;
+            for (xx=0; xx<p_rsp->param.player_setting.num_attr; xx++)
+            {
+                if (avrc_is_valid_player_attrib_value(p_rsp->param.player_setting.attr_id[xx],
+                    p_rsp->param.player_setting.attr_value[xx]))
+                {
+                    UINT8_TO_BE_STREAM(p_data, p_rsp->param.player_setting.attr_id[xx]);
+                    UINT8_TO_BE_STREAM(p_data, p_rsp->param.player_setting.attr_value[xx]);
+                }
+                else
+                {
+                    AVRC_TRACE_ERROR("%s bad player app seeting attribute or value", __func__);
+                    status = AVRC_STS_BAD_PARAM;
+                    break;
+                }
+                len += 2;
+            }
+        }
+        else
+            status = AVRC_STS_BAD_PARAM;
+        break;
+
+    case AVRC_EVT_VOLUME_CHANGE:
+        len = 2;
+        UINT8_TO_BE_STREAM(p_data, (AVRC_MAX_VOLUME & p_rsp->param.volume));
+        break;
+
+    default:
+        status = AVRC_STS_BAD_PARAM;
+        AVRC_TRACE_ERROR("%s unknown event_id", __func__);
+    }
+
+    UINT16_TO_BE_STREAM(p_len, len);
+    p_pkt->len = (p_data - p_start);
+
+    return status;
+}
+
+/*******************************************************************************
+**
+** Function         avrc_bld_next_rsp
+**
+** Description      This function builds the Request Continue or Abort
+**                  response.
+**
+** Returns          AVRC_STS_NO_ERROR, if the response is built successfully
+**                  Otherwise, the error code.
+**
+*******************************************************************************/
+static tAVRC_STS avrc_bld_next_rsp (tAVRC_RSP *p_rsp, BT_HDR *p_pkt)
+{
+    UNUSED(p_rsp);
+    UNUSED(p_pkt);
+
+    /* nothing to be added. */
+    AVRC_TRACE_API("%s", __func__);
+    return AVRC_STS_NO_ERROR;
+}
+
+/*****************************************************************************
+**
+** Function      avrc_bld_set_address_player_rsp
+**
+** Description   This function builds the set address player response
+**
+** Returns       AVRC_STS_NO_ERROR
+**
+******************************************************************************/
+static tAVRC_STS avrc_bld_set_address_player_rsp(tAVRC_RSP *p_rsp, BT_HDR *p_pkt)
+{
+    AVRC_TRACE_API("%s", __func__);
+    UINT8 *p_start = (UINT8 *)(p_pkt + 1) + p_pkt->offset;
+    /* To calculate length */
+    UINT8 *p_data = p_start + 2;
+    /* add fixed lenth status(1) */
+    UINT16_TO_BE_STREAM(p_data, 1);
+    UINT8_TO_BE_STREAM(p_data, p_rsp->status);
+    p_pkt->len = (p_data - p_start);
+    return AVRC_STS_NO_ERROR;
+}
+
+/*****************************************************************************
+**
+** Function      avrc_bld_play_item_rsp
+**
+** Description   This function builds the play item response
+**
+** Returns       AVRC_STS_NO_ERROR, if the response is build successfully
+**
+******************************************************************************/
+static tAVRC_STS avrc_bld_play_item_rsp(tAVRC_RSP *p_rsp, BT_HDR *p_pkt)
+{
+    AVRC_TRACE_API("%s", __func__);
+    UINT8 *p_start = (UINT8 *)(p_pkt + 1) + p_pkt->offset;
+    /* To calculate length */
+    UINT8 *p_data = p_start + 2;
+    /* add fixed lenth status(1) */
+    UINT16_TO_BE_STREAM(p_data, 1);
+    UINT8_TO_BE_STREAM(p_data, p_rsp->status);
+    p_pkt->len = (p_data - p_start);
+    return AVRC_STS_NO_ERROR;
+}
+
+/*****************************************************************************
+**
+** Function      avrc_bld_set_absolute_volume_rsp
+**
+** Description   This function builds the set absolute volume response
+**
+** Returns       AVRC_STS_NO_ERROR, if the response is build successfully
+**
+******************************************************************************/
+static tAVRC_STS avrc_bld_set_absolute_volume_rsp(uint8_t abs_vol, BT_HDR *p_pkt)
+{
+    AVRC_TRACE_API("%s", __func__);
+    UINT8 *p_start = (UINT8 *)(p_pkt + 1) + p_pkt->offset;
+    /* To calculate length */
+    UINT8 *p_data = p_start + 2;
+    /* add fixed lenth status(1) */
+    UINT16_TO_BE_STREAM(p_data, 1);
+    UINT8_TO_BE_STREAM(p_data, abs_vol);
+    p_pkt->len = (p_data - p_start);
+    return AVRC_STS_NO_ERROR;
+}
+
+/*******************************************************************************
+**
+** Function         avrc_bld_group_navigation_rsp
+**
+** Description      This function builds the Group Navigation
+**                  response.
+**
+** Returns          AVRC_STS_NO_ERROR, if the response is built successfully
+**                  Otherwise, the error code.
+**
+*******************************************************************************/
+tAVRC_STS avrc_bld_group_navigation_rsp (UINT16 navi_id, BT_HDR *p_pkt)
+{
+    if (!AVRC_IS_VALID_GROUP(navi_id))
+    {
+        AVRC_TRACE_ERROR("%s bad navigation op id: %d", __func__, navi_id);
+        return AVRC_STS_BAD_PARAM;
+    }
+    AVRC_TRACE_API("%s", __func__);
+    UINT8 *p_data = (UINT8 *)(p_pkt + 1) + p_pkt->offset;
+    UINT16_TO_BE_STREAM(p_data, navi_id);
+    p_pkt->len = 2;
+    return AVRC_STS_NO_ERROR;
+}
+
+/*******************************************************************************
+**
+** Function         avrc_bld_rejected_rsp
+**
+** Description      This function builds the General Response response.
+**
+** Returns          AVRC_STS_NO_ERROR, if the response is built successfully
+**
+*******************************************************************************/
+static tAVRC_STS avrc_bld_rejected_rsp( tAVRC_RSP *p_rsp, BT_HDR *p_pkt )
+{
+    AVRC_TRACE_API("%s: status=%d, pdu:x%x", __func__, p_rsp->status, p_rsp->pdu);
+
+    UINT8 *p_start = (UINT8 *)(p_pkt + 1) + p_pkt->offset;
+    UINT8 *p_data = p_start + 2;
+    AVRC_TRACE_DEBUG("%s pdu:x%x", __func__, *p_start);
+
+    UINT16_TO_BE_STREAM(p_data, 1);
+    UINT8_TO_BE_STREAM(p_data, p_rsp->status);
+    p_pkt->len = p_data - p_start;
+
+    return AVRC_STS_NO_ERROR;
+}
+
+/*******************************************************************************
+**
+** Function         avrc_bld_init_rsp_buffer
+**
+** Description      This function initializes the response buffer based on PDU
+**
+** Returns          NULL, if no GKI buffer or failure to build the message.
+**                  Otherwise, the GKI buffer that contains the initialized message.
+**
+*******************************************************************************/
+static BT_HDR *avrc_bld_init_rsp_buffer(tAVRC_RESPONSE *p_rsp)
+{
+    UINT16 offset = AVRC_MSG_PASS_THRU_OFFSET;
+    UINT16 chnl = AVCT_DATA_CTRL;
+    UINT8  opcode = avrc_opcode_from_pdu(p_rsp->pdu);
+
+    AVRC_TRACE_API("%s: pdu=%x, opcode=%x/%x", __func__, p_rsp->pdu, opcode, p_rsp->rsp.opcode);
+    if (opcode != p_rsp->rsp.opcode && p_rsp->rsp.status != AVRC_STS_NO_ERROR &&
+        avrc_is_valid_opcode(p_rsp->rsp.opcode))
+    {
+        opcode = p_rsp->rsp.opcode;
+        AVRC_TRACE_API("%s opcode=%x", __func__, opcode);
+    }
+
+    switch (opcode)
+    {
+    case AVRC_OP_PASS_THRU:
+        offset = AVRC_MSG_PASS_THRU_OFFSET;
+        break;
+
+    case AVRC_OP_VENDOR:
+        offset = AVRC_MSG_VENDOR_OFFSET;
+        break;
+    }
+
+    /* allocate and initialize the buffer */
+    BT_HDR *p_pkt = (BT_HDR *)osi_malloc(BT_DEFAULT_BUFFER_SIZE);
+    UINT8 *p_data, *p_start;
+
+    p_pkt->layer_specific = chnl;
+    p_pkt->event    = opcode;
+    p_pkt->offset   = offset;
+    p_data = (UINT8 *)(p_pkt + 1) + p_pkt->offset;
+    p_start = p_data;
+
+    /* pass thru - group navigation - has a two byte op_id, so dont do it here */
+    if (opcode != AVRC_OP_PASS_THRU)
+        *p_data++ = p_rsp->pdu;
+
+    switch (opcode) {
+    case AVRC_OP_VENDOR:
+        /* reserved 0, packet_type 0 */
+        UINT8_TO_BE_STREAM(p_data, 0);
+        /* continue to the next "case to add length */
+        /* add fixed lenth - 0 */
+        UINT16_TO_BE_STREAM(p_data, 0);
+        break;
+    }
+
+    p_pkt->len = (p_data - p_start);
+    p_rsp->rsp.opcode = opcode;
+
+    return p_pkt;
+}
+
+/*******************************************************************************
+**
+** Function         AVRC_BldResponse
+**
+** Description      This function builds the given AVRCP response to the given
+**                  GKI buffer
+**
+** Returns          AVRC_STS_NO_ERROR, if the response is built successfully
+**                  Otherwise, the error code.
+**
+*******************************************************************************/
+tAVRC_STS AVRC_BldResponse( UINT8 handle, tAVRC_RESPONSE *p_rsp, BT_HDR **pp_pkt)
+{
+    tAVRC_STS status = AVRC_STS_BAD_PARAM;
+    BT_HDR *p_pkt;
+    BOOLEAN alloc = FALSE;
+    UNUSED(handle);
+
+    if (!p_rsp || !pp_pkt)
+    {
+        AVRC_TRACE_API("%s Invalid parameters passed. p_rsp=%p, pp_pkt=%p",
+                       __func__, p_rsp, pp_pkt);
+        return AVRC_STS_BAD_PARAM;
+    }
+
+    if (*pp_pkt == NULL)
+    {
+        if ((*pp_pkt = avrc_bld_init_rsp_buffer(p_rsp)) == NULL)
+        {
+            AVRC_TRACE_API("%s Failed to initialize response buffer", __func__);
+            return AVRC_STS_INTERNAL_ERR;
+        }
+        alloc = TRUE;
+    }
+    status = AVRC_STS_NO_ERROR;
+    p_pkt = *pp_pkt;
+
+    AVRC_TRACE_API("%s pdu=%x status=%x", __func__, p_rsp->rsp.pdu, p_rsp->rsp.status);
+    if (p_rsp->rsp.status != AVRC_STS_NO_ERROR)
+    {
+        return( avrc_bld_rejected_rsp(&p_rsp->rsp, p_pkt) );
+    }
+
+    switch (p_rsp->pdu)
+    {
+    case AVRC_PDU_NEXT_GROUP:
+    case AVRC_PDU_PREV_GROUP:
+        status = avrc_bld_group_navigation_rsp(p_rsp->pdu, p_pkt);
+        break;
+
+    case AVRC_PDU_GET_CAPABILITIES:
+        status = avrc_bld_get_capability_rsp(&p_rsp->get_caps, p_pkt);
+        break;
+
+    case AVRC_PDU_LIST_PLAYER_APP_ATTR:
+        status = avrc_bld_list_app_settings_attr_rsp(&p_rsp->list_app_attr, p_pkt);
+        break;
+
+    case AVRC_PDU_LIST_PLAYER_APP_VALUES:
+        status = avrc_bld_list_app_settings_values_rsp(&p_rsp->list_app_values, p_pkt);
+        break;
+
+    case AVRC_PDU_GET_CUR_PLAYER_APP_VALUE:
+        status = avrc_bld_get_cur_app_setting_value_rsp(&p_rsp->get_cur_app_val, p_pkt);
+        break;
+
+    case AVRC_PDU_SET_PLAYER_APP_VALUE:
+        status = avrc_bld_set_app_setting_value_rsp(&p_rsp->set_app_val, p_pkt);
+        break;
+
+    case AVRC_PDU_GET_PLAYER_APP_ATTR_TEXT:
+        status = avrc_bld_get_app_setting_attr_text_rsp(&p_rsp->get_app_attr_txt, p_pkt);
+        break;
+
+    case AVRC_PDU_GET_PLAYER_APP_VALUE_TEXT:
+        status = avrc_bld_get_app_setting_value_text_rsp(&p_rsp->get_app_val_txt, p_pkt);
+        break;
+
+    case AVRC_PDU_INFORM_DISPLAY_CHARSET:
+        status = avrc_bld_inform_charset_rsp(&p_rsp->inform_charset, p_pkt);
+        break;
+
+    case AVRC_PDU_INFORM_BATTERY_STAT_OF_CT:
+        status = avrc_bld_inform_battery_status_rsp(&p_rsp->inform_battery_status, p_pkt);
+        break;
+
+    case AVRC_PDU_GET_ELEMENT_ATTR:
+        status = avrc_bld_get_elem_attrs_rsp(&p_rsp->get_elem_attrs, p_pkt);
+        break;
+
+    case AVRC_PDU_GET_PLAY_STATUS:
+        status = avrc_bld_get_play_status_rsp(&p_rsp->get_play_status, p_pkt);
+        break;
+
+    case AVRC_PDU_REGISTER_NOTIFICATION:
+        status = avrc_bld_notify_rsp(&p_rsp->reg_notif, p_pkt);
+        break;
+
+    case AVRC_PDU_REQUEST_CONTINUATION_RSP:     /*        0x40 */
+        status = avrc_bld_next_rsp(&p_rsp->continu, p_pkt);
+        break;
+
+    case AVRC_PDU_ABORT_CONTINUATION_RSP:       /*          0x41 */
+        status = avrc_bld_next_rsp(&p_rsp->abort, p_pkt);
+        break;
+
+    case AVRC_PDU_SET_ADDRESSED_PLAYER: /*PDU 0x60*/
+        status = avrc_bld_set_address_player_rsp(&p_rsp->addr_player, p_pkt);
+        break;
+
+    case AVRC_PDU_PLAY_ITEM:
+        status = avrc_bld_play_item_rsp(&p_rsp->play_item, p_pkt);
+        break;
+
+    case AVRC_PDU_SET_ABSOLUTE_VOLUME:
+        status = avrc_bld_set_absolute_volume_rsp(p_rsp->volume.volume, p_pkt);
+        break;
+    }
+
+    if (alloc && (status != AVRC_STS_NO_ERROR) )
+    {
+        osi_free(p_pkt);
+        *pp_pkt = NULL;
+    }
+    AVRC_TRACE_API("%s returning %d", __func__, status);
+    return status;
+}
+
+#endif /* (AVRC_METADATA_INCLUDED == TRUE)*/
+
diff --git a/rtkbt/code/bt/stack/avrc/avrc_int.h b/rtkbt/code/bt/stack/avrc/avrc_int.h
new file mode 100755
index 0000000..36bb0c5
--- /dev/null
+++ b/rtkbt/code/bt/stack/avrc/avrc_int.h
@@ -0,0 +1,158 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  VRCP internal header file.
+ *
+ ******************************************************************************/
+
+
+#ifndef AVRC_INT_H
+#define AVRC_INT_H
+
+#include "avct_defs.h"
+#include "avrc_api.h"
+
+/*      DEBUG FLAGS
+ *
+ * #define META_DEBUG_ENABLED
+ */
+/*****************************************************************************
+**  Constants
+*****************************************************************************/
+
+/* Number of attributes in AVRC SDP record. */
+#define AVRC_NUM_ATTR            6
+
+/* Number of protocol elements in protocol element list. */
+#define AVRC_NUM_PROTO_ELEMS     2
+
+#ifndef AVRC_MIN_CMD_LEN
+#define AVRC_MIN_CMD_LEN    20
+#endif
+
+#define AVRC_UNIT_OPRND_BYTES   5
+#define AVRC_SUB_OPRND_BYTES    4
+#define AVRC_SUBRSP_OPRND_BYTES 3
+#define AVRC_SUB_PAGE_MASK      7
+#define AVRC_SUB_PAGE_SHIFT     4
+#define AVRC_SUB_EXT_CODE       7
+#define AVRC_PASS_OP_ID_MASK    0x7F
+#define AVRC_PASS_STATE_MASK    0x80
+#define AVRC_CMD_OPRND_PAD      0xFF
+
+#define AVRC_CTYPE_MASK         0x0F
+#define AVRC_SUBTYPE_MASK       0xF8
+#define AVRC_SUBTYPE_SHIFT      3
+#define AVRC_SUBID_MASK         0x07
+#define AVRC_SUBID_IGNORE       0x07
+
+#define AVRC_SINGLE_PARAM_SIZE      1
+#define AVRC_METADATA_PKT_TYPE_MASK 0x03
+#define AVRC_PASS_THOUGH_MSG_MASK   0x80           /* MSB of msg_type indicates the PAS THROUGH msg */
+#define AVRC_VENDOR_UNIQUE_MASK     0x70           /* vendor unique id */
+
+
+/* Company ID is 24-bit integer We can not use the macros in bt_types.h */
+#define AVRC_CO_ID_TO_BE_STREAM(p, u32) {*(p)++ = (UINT8)((u32) >> 16); *(p)++ = (UINT8)((u32) >> 8); *(p)++ = (UINT8)(u32); }
+#define AVRC_BE_STREAM_TO_CO_ID(u32, p) {u32 = (((UINT32)(*((p) + 2))) + (((UINT32)(*((p) + 1))) << 8) + (((UINT32)(*(p))) << 16)); (p) += 3;}
+
+#define AVRC_AVC_HDR_SIZE           3   /* ctype, subunit*, opcode */
+
+#define AVRC_MIN_META_HDR_SIZE      4   /* pdu id(1), packet type(1), param len(2) */
+#define AVRC_MIN_BROWSE_HDR_SIZE    3   /* pdu id(1), param len(2) */
+
+#define AVRC_VENDOR_HDR_SIZE        6   /* ctype, subunit*, opcode, CO_ID */
+#define AVRC_MSG_VENDOR_OFFSET      23
+#define AVRC_MIN_VENDOR_SIZE        (AVRC_MSG_VENDOR_OFFSET + BT_HDR_SIZE + AVRC_MIN_META_HDR_SIZE)
+
+#define AVRC_PASS_THRU_SIZE         8
+#define AVRC_MSG_PASS_THRU_OFFSET   25
+#define AVRC_MIN_PASS_THRU_SIZE     (AVRC_MSG_PASS_THRU_OFFSET + BT_HDR_SIZE + 4)
+
+#define AVRC_MIN_BROWSE_SIZE        (AVCT_BROWSE_OFFSET + BT_HDR_SIZE + AVRC_MIN_BROWSE_HDR_SIZE)
+
+#define AVRC_CTRL_PKT_LEN(pf, pk)   {pf = (UINT8 *)((pk) + 1) + (pk)->offset + 2;}
+
+#define AVRC_MAX_CTRL_DATA_LEN      (AVRC_PACKET_LEN)
+
+/*****************************************************************************
+**  Type definitions
+*****************************************************************************/
+
+#if (AVRC_METADATA_INCLUDED == TRUE)
+/* type for Metadata fragmentation control block */
+typedef struct
+{
+    BT_HDR              *p_fmsg;        /* the fragmented message */
+    UINT8               frag_pdu;       /* the PDU ID for fragmentation */
+    BOOLEAN             frag_enabled;   /* fragmentation flag */
+} tAVRC_FRAG_CB;
+
+/* type for Metadata re-assembly control block */
+typedef struct
+{
+    BT_HDR              *p_rmsg;        /* the received message */
+    UINT16              rasm_offset;    /* re-assembly flag, the offset of the start fragment */
+    UINT8               rasm_pdu;       /* the PDU ID for re-assembly */
+} tAVRC_RASM_CB;
+#endif
+
+typedef struct
+{
+    tAVRC_CONN_CB       ccb[AVCT_NUM_CONN];
+#if (AVRC_METADATA_INCLUDED == TRUE)
+    tAVRC_FRAG_CB       fcb[AVCT_NUM_CONN];
+    tAVRC_RASM_CB       rcb[AVCT_NUM_CONN];
+#endif
+    tAVRC_FIND_CBACK    *p_cback;       /* pointer to application callback */
+    tSDP_DISCOVERY_DB   *p_db;          /* pointer to discovery database */
+    UINT16              service_uuid;   /* service UUID to search */
+    UINT8               trace_level;
+} tAVRC_CB;
+
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+/******************************************************************************
+** Main Control Block
+*******************************************************************************/
+#if AVRC_DYNAMIC_MEMORY == FALSE
+extern tAVRC_CB  avrc_cb;
+#else
+extern tAVRC_CB *avrc_cb_ptr;
+#define avrc_cb (*avrc_cb_ptr)
+#endif
+
+extern BOOLEAN avrc_is_valid_pdu_id(UINT8 pdu_id);
+extern BOOLEAN avrc_is_valid_player_attrib_value(UINT8 attrib, UINT8 value);
+extern BT_HDR * avrc_alloc_ctrl_pkt (UINT8 pdu);
+extern tAVRC_STS avrc_pars_pass_thru(tAVRC_MSG_PASS *p_msg, UINT16 *p_vendor_unique_id);
+extern UINT8 avrc_opcode_from_pdu(UINT8 pdu);
+extern BOOLEAN avrc_is_valid_opcode(UINT8 opcode);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* AVRC_INT_H */
diff --git a/rtkbt/code/bt/stack/avrc/avrc_opt.c b/rtkbt/code/bt/stack/avrc/avrc_opt.c
new file mode 100755
index 0000000..53b5bd3
--- /dev/null
+++ b/rtkbt/code/bt/stack/avrc/avrc_opt.c
@@ -0,0 +1,227 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  Interface to AVRCP optional commands
+ *
+ ******************************************************************************/
+#include <assert.h>
+#include <string.h>
+
+#include "bt_common.h"
+#include "avrc_api.h"
+#include "avrc_int.h"
+
+/******************************************************************************
+**
+** Function         avrc_vendor_msg
+**
+** Description      Compose a VENDOR DEPENDENT command according to p_msg
+**
+**                  Input Parameters:
+**                      p_msg: Pointer to VENDOR DEPENDENT message structure.
+**
+**                  Output Parameters:
+*                      None.
+**
+** Returns          pointer to a valid GKI buffer if successful.
+**                  NULL if p_msg is NULL.
+**
+******************************************************************************/
+static BT_HDR  * avrc_vendor_msg(tAVRC_MSG_VENDOR *p_msg)
+{
+    BT_HDR  *p_cmd;
+    UINT8   *p_data;
+
+    assert(p_msg != NULL);
+
+#if AVRC_METADATA_INCLUDED == TRUE
+    assert(AVRC_META_CMD_BUF_SIZE > (AVRC_MIN_CMD_LEN + p_msg->vendor_len));
+    p_cmd = (BT_HDR *)osi_malloc(AVRC_META_CMD_BUF_SIZE);
+#else
+    assert(AVRC_CMD_BUF_SIZE > (AVRC_MIN_CMD_LEN + p_msg->vendor_len));
+    p_cmd = (BT_HDR *)osi_malloc(AVRC_CMD_BUF_SIZE);
+#endif
+
+    p_cmd->offset = AVCT_MSG_OFFSET;
+    p_data = (UINT8 *)(p_cmd + 1) + p_cmd->offset;
+    *p_data++ = (p_msg->hdr.ctype & AVRC_CTYPE_MASK);
+    *p_data++ = (p_msg->hdr.subunit_type << AVRC_SUBTYPE_SHIFT) | p_msg->hdr.subunit_id;
+    *p_data++ = AVRC_OP_VENDOR;
+    AVRC_CO_ID_TO_BE_STREAM(p_data, p_msg->company_id);
+    if (p_msg->vendor_len && p_msg->p_vendor_data)
+        memcpy(p_data, p_msg->p_vendor_data, p_msg->vendor_len);
+    p_cmd->len  = (UINT16)(p_data + p_msg->vendor_len - (UINT8 *)(p_cmd + 1) - p_cmd->offset);
+    p_cmd->layer_specific = AVCT_DATA_CTRL;
+
+    return p_cmd;
+}
+
+/******************************************************************************
+**
+** Function         AVRC_UnitCmd
+**
+** Description      Send a UNIT INFO command to the peer device.  This
+**                  function can only be called for controller role connections.
+**                  Any response message from the peer is passed back through
+**                  the tAVRC_MSG_CBACK callback function.
+**
+**                  Input Parameters:
+**                      handle: Handle of this connection.
+**
+**                      label: Transaction label.
+**
+**                  Output Parameters:
+**                      None.
+**
+** Returns          AVRC_SUCCESS if successful.
+**                  AVRC_BAD_HANDLE if handle is invalid.
+**
+******************************************************************************/
+UINT16 AVRC_UnitCmd(UINT8 handle, UINT8 label)
+{
+    BT_HDR  *p_cmd = (BT_HDR *)osi_malloc(AVRC_CMD_BUF_SIZE);
+    UINT8   *p_data;
+
+    p_cmd->offset = AVCT_MSG_OFFSET;
+    p_data = (UINT8 *)(p_cmd + 1) + p_cmd->offset;
+    *p_data++ = AVRC_CMD_STATUS;
+    /* unit & id ignore */
+    *p_data++ = (AVRC_SUB_UNIT << AVRC_SUBTYPE_SHIFT) | AVRC_SUBID_IGNORE;
+    *p_data++ = AVRC_OP_UNIT_INFO;
+    memset(p_data, AVRC_CMD_OPRND_PAD, AVRC_UNIT_OPRND_BYTES);
+    p_cmd->len = p_data + AVRC_UNIT_OPRND_BYTES - (UINT8 *)(p_cmd + 1) - p_cmd->offset;
+    p_cmd->layer_specific = AVCT_DATA_CTRL;
+
+    return AVCT_MsgReq(handle, label, AVCT_CMD, p_cmd);
+}
+
+/******************************************************************************
+**
+** Function         AVRC_SubCmd
+**
+** Description      Send a SUBUNIT INFO command to the peer device.  This
+**                  function can only be called for controller role connections.
+**                  Any response message from the peer is passed back through
+**                  the tAVRC_MSG_CBACK callback function.
+**
+**                  Input Parameters:
+**                      handle: Handle of this connection.
+**
+**                      label: Transaction label.
+**
+**                      page: Specifies which part of the subunit type table
+**                      is requested.  For AVRCP it is typically zero.
+**                      Value range is 0-7.
+**
+**                  Output Parameters:
+**                      None.
+**
+** Returns          AVRC_SUCCESS if successful.
+**                  AVRC_BAD_HANDLE if handle is invalid.
+**
+******************************************************************************/
+UINT16 AVRC_SubCmd(UINT8 handle, UINT8 label, UINT8 page)
+{
+    BT_HDR  *p_cmd = (BT_HDR *)osi_malloc(AVRC_CMD_BUF_SIZE);
+    UINT8   *p_data;
+
+    p_cmd->offset = AVCT_MSG_OFFSET;
+    p_data = (UINT8 *)(p_cmd + 1) + p_cmd->offset;
+    *p_data++ = AVRC_CMD_STATUS;
+    /* unit & id ignore */
+    *p_data++ = (AVRC_SUB_UNIT << AVRC_SUBTYPE_SHIFT) | AVRC_SUBID_IGNORE;
+    *p_data++ = AVRC_OP_SUB_INFO;
+    *p_data++ = ((page&AVRC_SUB_PAGE_MASK) << AVRC_SUB_PAGE_SHIFT) | AVRC_SUB_EXT_CODE;
+    memset(p_data, AVRC_CMD_OPRND_PAD, AVRC_SUB_OPRND_BYTES);
+    p_cmd->len = p_data + AVRC_SUB_OPRND_BYTES - (UINT8 *)(p_cmd + 1) - p_cmd->offset;
+    p_cmd->layer_specific = AVCT_DATA_CTRL;
+
+    return AVCT_MsgReq(handle, label, AVCT_CMD, p_cmd);
+}
+
+/******************************************************************************
+**
+** Function         AVRC_VendorCmd
+**
+** Description      Send a VENDOR DEPENDENT command to the peer device.  This
+**                  function can only be called for controller role connections.
+**                  Any response message from the peer is passed back through
+**                  the tAVRC_MSG_CBACK callback function.
+**
+**                  Input Parameters:
+**                      handle: Handle of this connection.
+**
+**                      label: Transaction label.
+**
+**                      p_msg: Pointer to VENDOR DEPENDENT message structure.
+**
+**                  Output Parameters:
+**                      None.
+**
+** Returns          AVRC_SUCCESS if successful.
+**                  AVRC_BAD_HANDLE if handle is invalid.
+**
+******************************************************************************/
+UINT16 AVRC_VendorCmd(UINT8  handle, UINT8  label, tAVRC_MSG_VENDOR *p_msg)
+{
+    BT_HDR *p_buf = avrc_vendor_msg(p_msg);
+    if (p_buf)
+        return AVCT_MsgReq( handle, label, AVCT_CMD, p_buf);
+    else
+        return AVCT_NO_RESOURCES;
+}
+
+
+/******************************************************************************
+**
+** Function         AVRC_VendorRsp
+**
+** Description      Send a VENDOR DEPENDENT response to the peer device.  This
+**                  function can only be called for target role connections.
+**                  This function must be called when a VENDOR DEPENDENT
+**                  command message is received from the peer through the
+**                  tAVRC_MSG_CBACK callback function.
+**
+**                  Input Parameters:
+**                      handle: Handle of this connection.
+**
+**                      label: Transaction label.  Must be the same value as
+**                      passed with the command message in the callback function.
+**
+**                      p_msg: Pointer to VENDOR DEPENDENT message structure.
+**
+**                  Output Parameters:
+**                      None.
+**
+** Returns          AVRC_SUCCESS if successful.
+**                  AVRC_BAD_HANDLE if handle is invalid.
+**
+******************************************************************************/
+UINT16 AVRC_VendorRsp(UINT8  handle, UINT8  label, tAVRC_MSG_VENDOR *p_msg)
+{
+    BT_HDR *p_buf = avrc_vendor_msg(p_msg);
+    if (p_buf)
+        return AVCT_MsgReq( handle, label, AVCT_RSP, p_buf);
+    else
+        return AVCT_NO_RESOURCES;
+}
+
+
+
diff --git a/rtkbt/code/bt/stack/avrc/avrc_pars_ct.c b/rtkbt/code/bt/stack/avrc/avrc_pars_ct.c
new file mode 100755
index 0000000..63cc384
--- /dev/null
+++ b/rtkbt/code/bt/stack/avrc/avrc_pars_ct.c
@@ -0,0 +1,453 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2006-2013 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+#include <string.h>
+
+#include "bt_common.h"
+#include "avrc_api.h"
+#include "avrc_defs.h"
+#include "avrc_int.h"
+#include "bt_utils.h"
+
+/*****************************************************************************
+**  Global data
+*****************************************************************************/
+
+#if (AVRC_METADATA_INCLUDED == TRUE)
+
+/*******************************************************************************
+**
+** Function         avrc_pars_vendor_rsp
+**
+** Description      This function parses the vendor specific commands defined by
+**                  Bluetooth SIG
+**
+** Returns          AVRC_STS_NO_ERROR, if the message in p_data is parsed successfully.
+**                  Otherwise, the error code defined by AVRCP 1.4
+**
+*******************************************************************************/
+static tAVRC_STS avrc_pars_vendor_rsp(tAVRC_MSG_VENDOR *p_msg, tAVRC_RESPONSE *p_result)
+{
+    tAVRC_STS  status = AVRC_STS_NO_ERROR;
+    UINT8   *p;
+    UINT16  len;
+#if (AVRC_ADV_CTRL_INCLUDED == TRUE)
+    UINT8 eventid=0;
+#endif
+
+    /* Check the vendor data */
+    if (p_msg->vendor_len == 0)
+        return AVRC_STS_NO_ERROR;
+    if (p_msg->p_vendor_data == NULL)
+        return AVRC_STS_INTERNAL_ERR;
+
+    p = p_msg->p_vendor_data;
+    BE_STREAM_TO_UINT8 (p_result->pdu, p);
+    p++; /* skip the reserved/packe_type byte */
+    BE_STREAM_TO_UINT16 (len, p);
+    AVRC_TRACE_DEBUG("%s ctype:0x%x pdu:0x%x, len:%d/0x%x",
+                     __func__, p_msg->hdr.ctype, p_result->pdu, len, len);
+    if (p_msg->hdr.ctype == AVRC_RSP_REJ)
+    {
+        p_result->rsp.status = *p;
+        return p_result->rsp.status;
+    }
+
+    switch (p_result->pdu)
+    {
+    /* case AVRC_PDU_REQUEST_CONTINUATION_RSP: 0x40 */
+    /* case AVRC_PDU_ABORT_CONTINUATION_RSP:   0x41 */
+
+#if (AVRC_ADV_CTRL_INCLUDED == TRUE)
+    case AVRC_PDU_SET_ABSOLUTE_VOLUME:      /* 0x50 */
+        if (len != 1)
+            status = AVRC_STS_INTERNAL_ERR;
+        else
+        {
+            BE_STREAM_TO_UINT8 (p_result->volume.volume, p);
+        }
+        break;
+#endif /* (AVRC_ADV_CTRL_INCLUDED == TRUE) */
+
+    case AVRC_PDU_REGISTER_NOTIFICATION:    /* 0x31 */
+#if (AVRC_ADV_CTRL_INCLUDED == TRUE)
+        BE_STREAM_TO_UINT8 (eventid, p);
+        if(AVRC_EVT_VOLUME_CHANGE==eventid
+            && (AVRC_RSP_CHANGED==p_msg->hdr.ctype || AVRC_RSP_INTERIM==p_msg->hdr.ctype
+            || AVRC_RSP_REJ==p_msg->hdr.ctype || AVRC_RSP_NOT_IMPL==p_msg->hdr.ctype))
+        {
+            p_result->reg_notif.status=p_msg->hdr.ctype;
+            p_result->reg_notif.event_id=eventid;
+            BE_STREAM_TO_UINT8 (p_result->reg_notif.param.volume, p);
+        }
+        AVRC_TRACE_DEBUG("%s PDU reg notif response:event %x, volume %x",
+                         __func__, eventid, p_result->reg_notif.param.volume);
+#endif /* (AVRC_ADV_CTRL_INCLUDED == TRUE) */
+        break;
+    default:
+        status = AVRC_STS_BAD_CMD;
+        break;
+    }
+
+    return status;
+}
+
+void avrc_parse_notification_rsp (UINT8 *p_stream, tAVRC_REG_NOTIF_RSP *p_rsp)
+{
+    BE_STREAM_TO_UINT8(p_rsp->event_id, p_stream);
+    switch (p_rsp->event_id)
+    {
+        case AVRC_EVT_PLAY_STATUS_CHANGE:
+            BE_STREAM_TO_UINT8(p_rsp->param.play_status, p_stream);
+            break;
+
+        case AVRC_EVT_TRACK_CHANGE:
+            BE_STREAM_TO_ARRAY(p_stream, p_rsp->param.track, 8);
+            break;
+
+        case AVRC_EVT_APP_SETTING_CHANGE:
+            BE_STREAM_TO_UINT8(p_rsp->param.player_setting.num_attr, p_stream);
+            for (int index = 0; index < p_rsp->param.player_setting.num_attr; index++)
+            {
+                BE_STREAM_TO_UINT8(p_rsp->param.player_setting.attr_id[index], p_stream);
+                BE_STREAM_TO_UINT8(p_rsp->param.player_setting.attr_value[index], p_stream);
+            }
+            break;
+
+        case AVRC_EVT_NOW_PLAYING_CHANGE:
+            break;
+
+        case AVRC_EVT_AVAL_PLAYERS_CHANGE:
+            break;
+
+        case AVRC_EVT_ADDR_PLAYER_CHANGE:
+            break;
+
+        case AVRC_EVT_UIDS_CHANGE:
+            break;
+
+        case AVRC_EVT_TRACK_REACHED_END:
+        case AVRC_EVT_TRACK_REACHED_START:
+        case AVRC_EVT_PLAY_POS_CHANGED:
+        case AVRC_EVT_BATTERY_STATUS_CHANGE:
+        case AVRC_EVT_SYSTEM_STATUS_CHANGE:
+        default:
+            break;
+    }
+}
+
+#if (AVRC_CTLR_INCLUDED == TRUE)
+/*******************************************************************************
+**
+** Function         avrc_ctrl_pars_vendor_rsp
+**
+** Description      This function parses the vendor specific commands defined by
+**                  Bluetooth SIG
+**
+** Returns          AVRC_STS_NO_ERROR, if the message in p_data is parsed successfully.
+**                  Otherwise, the error code defined by AVRCP 1.4
+**
+*******************************************************************************/
+static tAVRC_STS avrc_ctrl_pars_vendor_rsp(
+    tAVRC_MSG_VENDOR *p_msg, tAVRC_RESPONSE *p_result, UINT8* p_buf, UINT16* buf_len)
+{
+    UINT8   *p = p_msg->p_vendor_data;
+    BE_STREAM_TO_UINT8 (p_result->pdu, p);
+    p++; /* skip the reserved/packe_type byte */
+
+    UINT16  len;
+    BE_STREAM_TO_UINT16 (len, p);
+    AVRC_TRACE_DEBUG("%s ctype:0x%x pdu:0x%x, len:%d",
+                     __func__, p_msg->hdr.ctype, p_result->pdu, len);
+    /* Todo: Issue in handling reject, check */
+    if (p_msg->hdr.ctype == AVRC_RSP_REJ)
+    {
+        p_result->rsp.status = *p;
+        return p_result->rsp.status;
+    }
+
+    /* TODO: Break the big switch into functions. */
+    switch (p_result->pdu)
+    {
+    /* case AVRC_PDU_REQUEST_CONTINUATION_RSP: 0x40 */
+    /* case AVRC_PDU_ABORT_CONTINUATION_RSP:   0x41 */
+
+    case AVRC_PDU_REGISTER_NOTIFICATION:
+        avrc_parse_notification_rsp(p, &p_result->reg_notif);
+        break;
+
+    case AVRC_PDU_GET_CAPABILITIES:
+        if (len == 0)
+        {
+            p_result->get_caps.count = 0;
+            p_result->get_caps.capability_id = 0;
+            break;
+        }
+        BE_STREAM_TO_UINT8(p_result->get_caps.capability_id, p);
+        BE_STREAM_TO_UINT8(p_result->get_caps.count, p);
+        AVRC_TRACE_DEBUG("%s cap id = %d, cap_count = %d ",
+                         __func__, p_result->get_caps.capability_id, p_result->get_caps.count);
+        if (p_result->get_caps.capability_id == AVRC_CAP_COMPANY_ID)
+        {
+            for(int xx = 0; ((xx < p_result->get_caps.count) && (xx < AVRC_CAP_MAX_NUM_COMP_ID));
+                xx++)
+            {
+                BE_STREAM_TO_UINT24(p_result->get_caps.param.company_id[xx], p);
+            }
+        }
+        else if (p_result->get_caps.capability_id == AVRC_CAP_EVENTS_SUPPORTED)
+        {
+            for(int xx = 0; ((xx < p_result->get_caps.count) && (xx < AVRC_CAP_MAX_NUM_EVT_ID));
+                xx++)
+            {
+                BE_STREAM_TO_UINT8(p_result->get_caps.param.event_id[xx], p);
+            }
+        }
+        break;
+
+    case AVRC_PDU_LIST_PLAYER_APP_ATTR:
+        if (len == 0)
+        {
+            p_result->list_app_attr.num_attr = 0;
+            break;
+        }
+        BE_STREAM_TO_UINT8(p_result->list_app_attr.num_attr, p);
+        AVRC_TRACE_DEBUG("%s attr count = %d ", __func__, p_result->list_app_attr.num_attr);
+        for(int xx = 0; xx < p_result->list_app_attr.num_attr; xx++)
+        {
+            BE_STREAM_TO_UINT8(p_result->list_app_attr.attrs[xx], p);
+        }
+        break;
+
+    case AVRC_PDU_LIST_PLAYER_APP_VALUES:
+        if (len == 0)
+        {
+            p_result->list_app_values.num_val = 0;
+            break;
+        }
+        BE_STREAM_TO_UINT8(p_result->list_app_values.num_val, p);
+        AVRC_TRACE_DEBUG("%s value count = %d ", __func__, p_result->list_app_values.num_val);
+        for(int xx = 0; xx < p_result->list_app_values.num_val; xx++)
+        {
+            BE_STREAM_TO_UINT8(p_result->list_app_values.vals[xx], p);
+        }
+        break;
+
+    case AVRC_PDU_GET_CUR_PLAYER_APP_VALUE:
+    {
+        if (len == 0)
+        {
+            p_result->get_cur_app_val.num_val = 0;
+            break;
+        }
+        BE_STREAM_TO_UINT8(p_result->get_cur_app_val.num_val, p);
+        tAVRC_APP_SETTING *app_sett =
+            (tAVRC_APP_SETTING*)osi_malloc(p_result->get_cur_app_val.num_val*sizeof(tAVRC_APP_SETTING));
+        AVRC_TRACE_DEBUG("%s attr count = %d ", __func__, p_result->get_cur_app_val.num_val);
+        for (int xx = 0; xx < p_result->get_cur_app_val.num_val; xx++)
+        {
+            BE_STREAM_TO_UINT8(app_sett[xx].attr_id, p);
+            BE_STREAM_TO_UINT8(app_sett[xx].attr_val, p);
+        }
+        p_result->get_cur_app_val.p_vals = app_sett;
+    }
+        break;
+
+    case AVRC_PDU_GET_PLAYER_APP_ATTR_TEXT:
+    {
+        tAVRC_APP_SETTING_TEXT   *p_setting_text;
+        UINT8                    num_attrs;
+
+        if (len == 0)
+        {
+            p_result->get_app_attr_txt.num_attr = 0;
+            break;
+        }
+        BE_STREAM_TO_UINT8(num_attrs, p);
+        AVRC_TRACE_DEBUG("%s attr count = %d ", __func__, p_result->get_app_attr_txt.num_attr);
+        p_result->get_app_attr_txt.num_attr = num_attrs;
+        p_setting_text = (tAVRC_APP_SETTING_TEXT*)osi_malloc(num_attrs * sizeof(tAVRC_APP_SETTING_TEXT));
+        for (int xx = 0; xx < num_attrs; xx++)
+        {
+            BE_STREAM_TO_UINT8(p_result->get_app_attr_txt.p_attrs[xx].attr_id, p);
+            BE_STREAM_TO_UINT16(p_result->get_app_attr_txt.p_attrs[xx].charset_id, p);
+            BE_STREAM_TO_UINT8(p_result->get_app_attr_txt.p_attrs[xx].str_len, p);
+            if (p_result->get_app_attr_txt.p_attrs[xx].str_len != 0)
+            {
+                UINT8 *p_str = (UINT8 *)osi_malloc(p_result->get_app_attr_txt.p_attrs[xx].str_len);
+                BE_STREAM_TO_ARRAY(p, p_str, p_result->get_app_attr_txt.p_attrs[xx].str_len);
+                p_result->get_app_attr_txt.p_attrs[xx].p_str = p_str;
+            } else {
+                p_result->get_app_attr_txt.p_attrs[xx].p_str = NULL;
+            }
+        }
+    }
+        break;
+
+    case AVRC_PDU_GET_PLAYER_APP_VALUE_TEXT:
+    {
+        tAVRC_APP_SETTING_TEXT   *p_setting_text;
+        UINT8                    num_vals;
+
+        if (len == 0)
+        {
+            p_result->get_app_val_txt.num_attr = 0;
+            break;
+        }
+        BE_STREAM_TO_UINT8(num_vals, p);
+        p_result->get_app_val_txt.num_attr = num_vals;
+        AVRC_TRACE_DEBUG("%s value count = %d ", __func__, p_result->get_app_val_txt.num_attr);
+
+        p_setting_text = (tAVRC_APP_SETTING_TEXT *)osi_malloc(num_vals * sizeof(tAVRC_APP_SETTING_TEXT));
+        for (int i = 0; i < num_vals; i++) {
+            BE_STREAM_TO_UINT8(p_result->get_app_val_txt.p_attrs[i].attr_id, p);
+            BE_STREAM_TO_UINT16(p_result->get_app_val_txt.p_attrs[i].charset_id, p);
+            BE_STREAM_TO_UINT8(p_result->get_app_val_txt.p_attrs[i].str_len, p);
+            if (p_result->get_app_val_txt.p_attrs[i].str_len != 0) {
+                UINT8 *p_str = (UINT8 *)osi_malloc(p_result->get_app_val_txt.p_attrs[i].str_len);
+                BE_STREAM_TO_ARRAY(p, p_str, p_result->get_app_val_txt.p_attrs[i].str_len);
+                p_result->get_app_val_txt.p_attrs[i].p_str = p_str;
+            } else {
+                p_result->get_app_val_txt.p_attrs[i].p_str = NULL;
+            }
+        }
+    }
+        break;
+
+    case AVRC_PDU_SET_PLAYER_APP_VALUE:
+        /* nothing comes as part of this rsp */
+        break;
+
+    case AVRC_PDU_GET_ELEMENT_ATTR:
+    {
+        UINT8               num_attrs;
+
+        if (len <= 0)
+        {
+            p_result->get_elem_attrs.num_attr = 0;
+            break;
+        }
+        BE_STREAM_TO_UINT8(num_attrs, p);
+        p_result->get_elem_attrs.num_attr = num_attrs;
+        if (num_attrs)
+        {
+            tAVRC_ATTR_ENTRY *p_attrs =
+                (tAVRC_ATTR_ENTRY*)osi_malloc(num_attrs * sizeof(tAVRC_ATTR_ENTRY));
+            for (int i = 0; i < num_attrs; i++) {
+                BE_STREAM_TO_UINT32(p_attrs[i].attr_id, p);
+                BE_STREAM_TO_UINT16(p_attrs[i].name.charset_id, p);
+                BE_STREAM_TO_UINT16(p_attrs[i].name.str_len, p);
+                if (p_attrs[i].name.str_len > 0) {
+                    p_attrs[i].name.p_str = (UINT8 *)osi_malloc(p_attrs[i].name.str_len);
+                    BE_STREAM_TO_ARRAY(p, p_attrs[i].name.p_str, p_attrs[i].name.str_len);
+                }
+            }
+            p_result->get_elem_attrs.p_attrs = p_attrs;
+        }
+    }
+        break;
+
+    case AVRC_PDU_GET_PLAY_STATUS:
+        if (len == 0)
+        {
+            break;
+        }
+        BE_STREAM_TO_UINT32(p_result->get_play_status.song_len, p);
+        BE_STREAM_TO_UINT32(p_result->get_play_status.song_pos, p);
+        BE_STREAM_TO_UINT8(p_result->get_play_status.status, p);
+        break;
+
+    default:
+        return AVRC_STS_BAD_CMD;
+    }
+    return AVRC_STS_NO_ERROR;
+}
+
+/*******************************************************************************
+**
+** Function         AVRC_Ctrl_ParsResponse
+**
+** Description      This function is a parse response for AVRCP Controller.
+**
+** Returns          AVRC_STS_NO_ERROR, if the message in p_data is parsed successfully.
+**                  Otherwise, the error code defined by AVRCP 1.4
+**
+*******************************************************************************/
+tAVRC_STS AVRC_Ctrl_ParsResponse (tAVRC_MSG *p_msg, tAVRC_RESPONSE *p_result, UINT8 *p_buf, UINT16* buf_len)
+{
+    tAVRC_STS  status = AVRC_STS_INTERNAL_ERR;
+    if (p_msg && p_result)
+    {
+        switch (p_msg->hdr.opcode)
+        {
+        case AVRC_OP_VENDOR:     /*  0x00    Vendor-dependent commands */
+            status = avrc_ctrl_pars_vendor_rsp(&p_msg->vendor, p_result, p_buf,buf_len);
+            break;
+
+        default:
+            AVRC_TRACE_ERROR("%s unknown opcode:0x%x", __func__, p_msg->hdr.opcode);
+            break;
+        }
+        p_result->rsp.opcode = p_msg->hdr.opcode;
+        p_result->rsp.status = status;
+    }
+    return status;
+}
+#endif /* (AVRC_CTRL_INCLUDED) == TRUE) */
+/*******************************************************************************
+**
+** Function         AVRC_ParsResponse
+**
+** Description      This function is a superset of AVRC_ParsMetadata to parse the response.
+**
+** Returns          AVRC_STS_NO_ERROR, if the message in p_data is parsed successfully.
+**                  Otherwise, the error code defined by AVRCP 1.4
+**
+*******************************************************************************/
+tAVRC_STS AVRC_ParsResponse (tAVRC_MSG *p_msg, tAVRC_RESPONSE *p_result, UINT8 *p_buf, UINT16 buf_len)
+{
+    tAVRC_STS  status = AVRC_STS_INTERNAL_ERR;
+    UINT16  id;
+    UNUSED(p_buf);
+    UNUSED(buf_len);
+
+    if (p_msg && p_result)
+    {
+        switch (p_msg->hdr.opcode)
+        {
+        case AVRC_OP_VENDOR:     /*  0x00    Vendor-dependent commands */
+            status = avrc_pars_vendor_rsp(&p_msg->vendor, p_result);
+            break;
+
+        case AVRC_OP_PASS_THRU:  /*  0x7C    panel subunit opcode */
+            status = avrc_pars_pass_thru(&p_msg->pass, &id);
+            if (status == AVRC_STS_NO_ERROR)
+            {
+                p_result->pdu = (UINT8)id;
+            }
+            break;
+
+        default:
+            AVRC_TRACE_ERROR("%s unknown opcode:0x%x", __func__, p_msg->hdr.opcode);
+            break;
+        }
+        p_result->rsp.opcode = p_msg->hdr.opcode;
+        p_result->rsp.status = status;
+    }
+    return status;
+}
+#endif /* (AVRC_METADATA_INCLUDED == TRUE) */
diff --git a/rtkbt/code/bt/stack/avrc/avrc_pars_tg.c b/rtkbt/code/bt/stack/avrc/avrc_pars_tg.c
new file mode 100755
index 0000000..3f3fe93
--- /dev/null
+++ b/rtkbt/code/bt/stack/avrc/avrc_pars_tg.c
@@ -0,0 +1,421 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2003-2013 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+#include <string.h>
+
+#include "bt_common.h"
+#include "avrc_api.h"
+#include "avrc_defs.h"
+#include "avrc_int.h"
+
+/*****************************************************************************
+**  Global data
+*****************************************************************************/
+#if (AVRC_METADATA_INCLUDED == TRUE)
+
+#if (AVRC_CTLR_INCLUDED == TRUE)
+/*******************************************************************************
+**
+** Function         avrc_ctrl_pars_vendor_cmd
+**
+** Description      This function parses the vendor specific commands defined by
+**                  Bluetooth SIG for AVRCP Conroller.
+**
+** Returns          AVRC_STS_NO_ERROR, if the message in p_data is parsed successfully.
+**                  Otherwise, the error code defined by AVRCP 1.4
+**
+*******************************************************************************/
+static tAVRC_STS avrc_ctrl_pars_vendor_cmd(tAVRC_MSG_VENDOR *p_msg, tAVRC_COMMAND *p_result)
+{
+    tAVRC_STS  status = AVRC_STS_NO_ERROR;
+
+    UINT8   *p = p_msg->p_vendor_data;
+    p_result->pdu = *p++;
+    AVRC_TRACE_DEBUG("%s pdu:0x%x", __func__, p_result->pdu);
+    if (!AVRC_IsValidAvcType (p_result->pdu, p_msg->hdr.ctype))
+    {
+        AVRC_TRACE_DEBUG("%s detects wrong AV/C type!", __func__);
+        status = AVRC_STS_BAD_CMD;
+    }
+
+    p++; /* skip the reserved byte */
+    UINT16  len;
+    BE_STREAM_TO_UINT16 (len, p);
+    if ((len+4) != (p_msg->vendor_len))
+    {
+        status = AVRC_STS_INTERNAL_ERR;
+    }
+
+    if (status != AVRC_STS_NO_ERROR)
+        return status;
+
+    switch (p_result->pdu)
+    {
+        case AVRC_PDU_SET_ABSOLUTE_VOLUME:
+        {
+            if(len!=1)
+                status = AVRC_STS_INTERNAL_ERR;
+            else
+            {
+                BE_STREAM_TO_UINT8 (p_result->volume.volume, p);
+                p_result->volume.volume = AVRC_MAX_VOLUME & p_result->volume.volume;
+            }
+            break;
+        }
+        case AVRC_PDU_REGISTER_NOTIFICATION:    /* 0x31 */
+            BE_STREAM_TO_UINT8 (p_result->reg_notif.event_id, p);
+            BE_STREAM_TO_UINT32 (p_result->reg_notif.param, p);
+            break;
+        default:
+            status = AVRC_STS_BAD_CMD;
+            break;
+    }
+    return status;
+}
+#endif
+
+/*******************************************************************************
+**
+** Function         avrc_pars_vendor_cmd
+**
+** Description      This function parses the vendor specific commands defined by
+**                  Bluetooth SIG
+**
+** Returns          AVRC_STS_NO_ERROR, if the message in p_data is parsed successfully.
+**                  Otherwise, the error code defined by AVRCP 1.4
+**
+*******************************************************************************/
+static tAVRC_STS avrc_pars_vendor_cmd(tAVRC_MSG_VENDOR *p_msg, tAVRC_COMMAND *p_result,
+                                      UINT8 *p_buf, UINT16 buf_len)
+{
+    tAVRC_STS  status = AVRC_STS_NO_ERROR;
+    UINT8   *p;
+    UINT16  len;
+    UINT8   xx, yy;
+    UINT8   *p_u8;
+    UINT16  *p_u16;
+    UINT32  u32, u32_2, *p_u32;
+    tAVRC_APP_SETTING       *p_app_set;
+    UINT16  size_needed;
+
+    /* Check the vendor data */
+    if (p_msg->vendor_len == 0)
+        return AVRC_STS_NO_ERROR;
+    if (p_msg->p_vendor_data == NULL)
+        return AVRC_STS_INTERNAL_ERR;
+
+    p = p_msg->p_vendor_data;
+    p_result->pdu = *p++;
+    AVRC_TRACE_DEBUG("%s pdu:0x%x", __func__, p_result->pdu);
+    if (!AVRC_IsValidAvcType (p_result->pdu, p_msg->hdr.ctype))
+    {
+        AVRC_TRACE_DEBUG("%s detects wrong AV/C type!", __func__);
+        status = AVRC_STS_BAD_CMD;
+    }
+
+    p++; /* skip the reserved byte */
+    BE_STREAM_TO_UINT16 (len, p);
+    if ((len+4) != (p_msg->vendor_len))
+    {
+        status = AVRC_STS_INTERNAL_ERR;
+    }
+
+    if (status != AVRC_STS_NO_ERROR)
+        return status;
+
+    switch (p_result->pdu)
+    {
+    case AVRC_PDU_GET_CAPABILITIES:         /* 0x10 */
+        p_result->get_caps.capability_id = *p++;
+        if (!AVRC_IS_VALID_CAP_ID(p_result->get_caps.capability_id))
+            status = AVRC_STS_BAD_PARAM;
+        else if (len != 1)
+            status = AVRC_STS_INTERNAL_ERR;
+        break;
+
+    case AVRC_PDU_LIST_PLAYER_APP_ATTR:     /* 0x11 */
+        /* no additional parameters */
+        if (len != 0)
+            status = AVRC_STS_INTERNAL_ERR;
+        break;
+
+    case AVRC_PDU_LIST_PLAYER_APP_VALUES:   /* 0x12 */
+        p_result->list_app_values.attr_id = *p++;
+        if (!AVRC_IS_VALID_ATTRIBUTE(p_result->list_app_values.attr_id))
+            status = AVRC_STS_BAD_PARAM;
+        else if (len != 1)
+            status = AVRC_STS_INTERNAL_ERR;
+        break;
+
+    case AVRC_PDU_GET_CUR_PLAYER_APP_VALUE: /* 0x13 */
+    case AVRC_PDU_GET_PLAYER_APP_ATTR_TEXT: /* 0x15 */
+        BE_STREAM_TO_UINT8 (p_result->get_cur_app_val.num_attr, p);
+        if (len != (p_result->get_cur_app_val.num_attr+1))
+        {
+            status = AVRC_STS_INTERNAL_ERR;
+            break;
+        }
+        p_u8 = p_result->get_cur_app_val.attrs;
+        for (xx=0, yy=0; xx< p_result->get_cur_app_val.num_attr; xx++)
+        {
+            /* only report the valid player app attributes */
+            if (AVRC_IsValidPlayerAttr(*p))
+                p_u8[yy++] = *p;
+            p++;
+        }
+        p_result->get_cur_app_val.num_attr = yy;
+        if (yy == 0)
+        {
+            status = AVRC_STS_BAD_PARAM;
+        }
+        break;
+
+    case AVRC_PDU_SET_PLAYER_APP_VALUE:     /* 0x14 */
+        BE_STREAM_TO_UINT8 (p_result->set_app_val.num_val, p);
+        size_needed = sizeof(tAVRC_APP_SETTING);
+        if (p_buf && (len == ((p_result->set_app_val.num_val<<1) + 1)))
+        {
+            p_result->set_app_val.p_vals = (tAVRC_APP_SETTING *)p_buf;
+            p_app_set = p_result->set_app_val.p_vals;
+            for (xx=0; ((xx< p_result->set_app_val.num_val) && (buf_len > size_needed)); xx++)
+            {
+                p_app_set[xx].attr_id = *p++;
+                p_app_set[xx].attr_val = *p++;
+                if (!avrc_is_valid_player_attrib_value(p_app_set[xx].attr_id, p_app_set[xx].attr_val))
+                    status = AVRC_STS_BAD_PARAM;
+            }
+            if (xx != p_result->set_app_val.num_val)
+            {
+                AVRC_TRACE_ERROR(
+                    "%s AVRC_PDU_SET_PLAYER_APP_VALUE not enough room:%d orig num_val:%d",
+                    __func__, xx, p_result->set_app_val.num_val);
+                p_result->set_app_val.num_val = xx;
+            }
+        }
+        else
+        {
+            AVRC_TRACE_ERROR("%s AVRC_PDU_SET_PLAYER_APP_VALUE NULL decode buffer or bad len",
+                             __func__);
+            status = AVRC_STS_INTERNAL_ERR;
+        }
+        break;
+
+    case AVRC_PDU_GET_PLAYER_APP_VALUE_TEXT:/* 0x16 */
+        if (len < 3)
+            status = AVRC_STS_INTERNAL_ERR;
+        else
+        {
+            BE_STREAM_TO_UINT8 (p_result->get_app_val_txt.attr_id, p);
+            if (!AVRC_IS_VALID_ATTRIBUTE(p_result->get_app_val_txt.attr_id))
+                status = AVRC_STS_BAD_PARAM;
+            else
+            {
+                BE_STREAM_TO_UINT8 (p_result->get_app_val_txt.num_val, p);
+                if ( (len - 2/* attr_id & num_val */) != p_result->get_app_val_txt.num_val)
+                    status = AVRC_STS_INTERNAL_ERR;
+                else
+                {
+                    p_u8 = p_result->get_app_val_txt.vals;
+                    for (xx=0; xx< p_result->get_app_val_txt.num_val; xx++)
+                    {
+                        p_u8[xx] = *p++;
+                        if (!avrc_is_valid_player_attrib_value(p_result->get_app_val_txt.attr_id,
+                            p_u8[xx]))
+                        {
+                            status = AVRC_STS_BAD_PARAM;
+                            break;
+                        }
+                    }
+                }
+            }
+        }
+        break;
+
+    case AVRC_PDU_INFORM_DISPLAY_CHARSET:  /* 0x17 */
+        if (len < 3)
+            status = AVRC_STS_INTERNAL_ERR;
+        else
+        {
+            BE_STREAM_TO_UINT8 (p_result->inform_charset.num_id, p);
+            if ( (len - 1/* num_id */) != p_result->inform_charset.num_id * 2)
+                status = AVRC_STS_INTERNAL_ERR;
+            else
+            {
+                p_u16 = p_result->inform_charset.charsets;
+                if (p_result->inform_charset.num_id > AVRC_MAX_CHARSET_SIZE)
+                    p_result->inform_charset.num_id = AVRC_MAX_CHARSET_SIZE;
+                for (xx=0; xx< p_result->inform_charset.num_id; xx++)
+                {
+                    BE_STREAM_TO_UINT16 (p_u16[xx], p);
+                }
+            }
+        }
+        break;
+
+    case AVRC_PDU_INFORM_BATTERY_STAT_OF_CT:/* 0x18 */
+        if (len != 1)
+            status = AVRC_STS_INTERNAL_ERR;
+        else
+        {
+            p_result->inform_battery_status.battery_status = *p++;
+            if (!AVRC_IS_VALID_BATTERY_STATUS(p_result->inform_battery_status.battery_status))
+                status = AVRC_STS_BAD_PARAM;
+        }
+        break;
+
+    case AVRC_PDU_GET_ELEMENT_ATTR:         /* 0x20 */
+        if (len < 9) /* UID/8 and num_attr/1 */
+            status = AVRC_STS_INTERNAL_ERR;
+        else
+        {
+            BE_STREAM_TO_UINT32 (u32, p);
+            BE_STREAM_TO_UINT32 (u32_2, p);
+            if (u32== 0 && u32_2 == 0)
+            {
+                BE_STREAM_TO_UINT8 (p_result->get_elem_attrs.num_attr, p);
+                if ( (len - 9/* UID/8 and num_attr/1 */) != (p_result->get_elem_attrs.num_attr * 4))
+                    status = AVRC_STS_INTERNAL_ERR;
+                else
+                {
+                    p_u32 = p_result->get_elem_attrs.attrs;
+                    if (p_result->get_elem_attrs.num_attr > AVRC_MAX_ELEM_ATTR_SIZE)
+                        p_result->get_elem_attrs.num_attr = AVRC_MAX_ELEM_ATTR_SIZE;
+                    for (xx=0; xx< p_result->get_elem_attrs.num_attr; xx++)
+                    {
+                        BE_STREAM_TO_UINT32 (p_u32[xx], p);
+                    }
+                }
+            }
+            else
+                status = AVRC_STS_NOT_FOUND;
+        }
+        break;
+
+    case AVRC_PDU_GET_PLAY_STATUS:          /* 0x30 */
+        /* no additional parameters */
+        if (len != 0)
+            status = AVRC_STS_INTERNAL_ERR;
+        break;
+
+    case AVRC_PDU_REGISTER_NOTIFICATION:    /* 0x31 */
+        if (len != 5)
+            status = AVRC_STS_INTERNAL_ERR;
+        else
+        {
+            BE_STREAM_TO_UINT8 (p_result->reg_notif.event_id, p);
+            BE_STREAM_TO_UINT32 (p_result->reg_notif.param, p);
+        }
+        break;
+
+    case AVRC_PDU_SET_ABSOLUTE_VOLUME:
+    {
+        if(len!=1)
+            status = AVRC_STS_INTERNAL_ERR;
+        break;
+    }
+
+    /* case AVRC_PDU_REQUEST_CONTINUATION_RSP: 0x40 */
+    /* case AVRC_PDU_ABORT_CONTINUATION_RSP:   0x41 */
+
+    default:
+        status = AVRC_STS_BAD_CMD;
+        break;
+    }
+
+    return status;
+}
+
+#if (AVRC_CTLR_INCLUDED == TRUE)
+/*******************************************************************************
+**
+** Function         AVRC_Ctrl_ParsCommand
+**
+** Description      This function is used to parse cmds received for CTRL
+**                  Currently it is for SetAbsVolume and Volume Change Notification..
+**
+** Returns          AVRC_STS_NO_ERROR, if the message in p_data is parsed successfully.
+**                  Otherwise, the error code defined by AVRCP 1.4
+**
+*******************************************************************************/
+tAVRC_STS AVRC_Ctrl_ParsCommand (tAVRC_MSG *p_msg, tAVRC_COMMAND *p_result)
+{
+    tAVRC_STS  status = AVRC_STS_INTERNAL_ERR;
+
+    if (p_msg && p_result)
+    {
+        switch (p_msg->hdr.opcode)
+        {
+        case AVRC_OP_VENDOR:     /*  0x00    Vendor-dependent commands */
+            status = avrc_ctrl_pars_vendor_cmd(&p_msg->vendor, p_result);
+            break;
+
+        default:
+            AVRC_TRACE_ERROR("%s unknown opcode:0x%x", __func__, p_msg->hdr.opcode);
+            break;
+        }
+        p_result->cmd.opcode = p_msg->hdr.opcode;
+        p_result->cmd.status = status;
+    }
+    AVRC_TRACE_DEBUG("%s return status:0x%x", __FUNCTION__, status);
+    return status;
+}
+#endif
+
+/*******************************************************************************
+**
+** Function         AVRC_ParsCommand
+**
+** Description      This function is a superset of AVRC_ParsMetadata to parse the command.
+**
+** Returns          AVRC_STS_NO_ERROR, if the message in p_data is parsed successfully.
+**                  Otherwise, the error code defined by AVRCP 1.4
+**
+*******************************************************************************/
+tAVRC_STS AVRC_ParsCommand (tAVRC_MSG *p_msg, tAVRC_COMMAND *p_result, UINT8 *p_buf, UINT16 buf_len)
+{
+    tAVRC_STS  status = AVRC_STS_INTERNAL_ERR;
+    UINT16  id;
+
+    if (p_msg && p_result)
+    {
+        switch (p_msg->hdr.opcode)
+        {
+        case AVRC_OP_VENDOR:     /*  0x00    Vendor-dependent commands */
+            status = avrc_pars_vendor_cmd(&p_msg->vendor, p_result, p_buf, buf_len);
+            break;
+
+        case AVRC_OP_PASS_THRU:  /*  0x7C    panel subunit opcode */
+            status = avrc_pars_pass_thru(&p_msg->pass, &id);
+            if (status == AVRC_STS_NO_ERROR)
+            {
+                p_result->pdu = (UINT8)id;
+            }
+            break;
+
+        default:
+            AVRC_TRACE_ERROR("%s unknown opcode:0x%x", __func__, p_msg->hdr.opcode);
+            break;
+        }
+        p_result->cmd.opcode = p_msg->hdr.opcode;
+        p_result->cmd.status = status;
+    }
+    AVRC_TRACE_DEBUG("%s return status:0x%x", __func__, status);
+    return status;
+}
+
+#endif /* (AVRC_METADATA_INCLUDED == TRUE) */
+
diff --git a/rtkbt/code/bt/stack/avrc/avrc_sdp.c b/rtkbt/code/bt/stack/avrc/avrc_sdp.c
new file mode 100755
index 0000000..da26523
--- /dev/null
+++ b/rtkbt/code/bt/stack/avrc/avrc_sdp.c
@@ -0,0 +1,336 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2003-2013 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  AVRCP SDP related functions
+ *
+ ******************************************************************************/
+#include <string.h>
+
+#include "bt_common.h"
+#include "avrc_api.h"
+#include "avrc_int.h"
+
+#ifndef SDP_AVRCP_1_4
+#define SDP_AVRCP_1_4      TRUE
+#endif
+
+#ifndef SDP_AVCTP_1_4
+#define SDP_AVCTP_1_4      TRUE
+#endif
+
+/*****************************************************************************
+**  Global data
+*****************************************************************************/
+#if AVRC_DYNAMIC_MEMORY == FALSE
+tAVRC_CB avrc_cb;
+#endif
+
+/******************************************************************************
+**
+** Function         avrc_sdp_cback
+**
+** Description      This is the SDP callback function used by A2D_FindService.
+**                  This function will be executed by SDP when the service
+**                  search is completed.  If the search is successful, it
+**                  finds the first record in the database that matches the
+**                  UUID of the search.  Then retrieves various parameters
+**                  from the record.  When it is finished it calls the
+**                  application callback function.
+**
+** Returns          Nothing.
+**
+******************************************************************************/
+static void avrc_sdp_cback(UINT16 status)
+{
+    AVRC_TRACE_API("avrc_sdp_cback status: %d", status);
+
+    /* reset service_uuid, so can start another find service */
+    avrc_cb.service_uuid = 0;
+
+    /* return info from sdp record in app callback function */
+    (*avrc_cb.p_cback) (status);
+
+    return;
+}
+
+/******************************************************************************
+**
+** Function         AVRC_FindService
+**
+** Description      This function is called by the application to perform service
+**                  discovery and retrieve AVRCP SDP record information from a
+**                  peer device.  Information is returned for the first service
+**                  record found on the server that matches the service UUID.
+**                  The callback function will be executed when service discovery
+**                  is complete.  There can only be one outstanding call to
+**                  AVRC_FindService() at a time; the application must wait for
+**                  the callback before it makes another call to the function.
+**                  The application is responsible for allocating memory for the
+**                  discovery database.  It is recommended that the size of the
+**                  discovery database be at least 300 bytes.  The application
+**                  can deallocate the memory after the callback function has
+**                  executed.
+**
+**                  Input Parameters:
+**                      service_uuid: Indicates TG(UUID_SERVCLASS_AV_REM_CTRL_TARGET)
+**                                           or CT(UUID_SERVCLASS_AV_REMOTE_CONTROL)
+**
+**                      bd_addr:  BD address of the peer device.
+**
+**                      p_db:  SDP discovery database parameters.
+**
+**                      p_cback:  Pointer to the callback function.
+**
+**                  Output Parameters:
+**                      None.
+**
+** Returns          AVRC_SUCCESS if successful.
+**                  AVRC_BAD_PARAMS if discovery database parameters are invalid.
+**                  AVRC_NO_RESOURCES if there are not enough resources to
+**                                    perform the service search.
+**
+******************************************************************************/
+UINT16 AVRC_FindService(UINT16 service_uuid, BD_ADDR bd_addr,
+                tAVRC_SDP_DB_PARAMS *p_db, tAVRC_FIND_CBACK *p_cback)
+{
+    tSDP_UUID   uuid_list;
+    BOOLEAN     result = TRUE;
+    UINT16      a2d_attr_list[] = {ATTR_ID_SERVICE_CLASS_ID_LIST, /* update AVRC_NUM_ATTR, if changed */
+                                   ATTR_ID_PROTOCOL_DESC_LIST,
+                                   ATTR_ID_BT_PROFILE_DESC_LIST,
+                                   ATTR_ID_SERVICE_NAME,
+                                   ATTR_ID_SUPPORTED_FEATURES,
+                                   ATTR_ID_PROVIDER_NAME};
+
+    AVRC_TRACE_API("AVRC_FindService uuid: %x", service_uuid);
+    if( (service_uuid != UUID_SERVCLASS_AV_REM_CTRL_TARGET && service_uuid != UUID_SERVCLASS_AV_REMOTE_CONTROL) ||
+        p_db == NULL || p_db->p_db == NULL || p_cback == NULL)
+        return AVRC_BAD_PARAM;
+
+    /* check if it is busy */
+    if( avrc_cb.service_uuid == UUID_SERVCLASS_AV_REM_CTRL_TARGET ||
+        avrc_cb.service_uuid == UUID_SERVCLASS_AV_REMOTE_CONTROL)
+        return AVRC_NO_RESOURCES;
+
+    /* set up discovery database */
+    uuid_list.len = LEN_UUID_16;
+    uuid_list.uu.uuid16 = service_uuid;
+
+    if(p_db->p_attrs == NULL || p_db->num_attr == 0)
+    {
+        p_db->p_attrs  = a2d_attr_list;
+        p_db->num_attr = AVRC_NUM_ATTR;
+    }
+
+    result = SDP_InitDiscoveryDb(p_db->p_db, p_db->db_len, 1, &uuid_list, p_db->num_attr,
+                                 p_db->p_attrs);
+
+    if (result == TRUE)
+    {
+        /* store service_uuid and discovery db pointer */
+        avrc_cb.p_db = p_db->p_db;
+        avrc_cb.service_uuid = service_uuid;
+        avrc_cb.p_cback = p_cback;
+
+        /* perform service search */
+        result = SDP_ServiceSearchAttributeRequest(bd_addr, p_db->p_db, avrc_sdp_cback);
+    }
+
+    return (result ? AVRC_SUCCESS : AVRC_FAIL);
+}
+
+/******************************************************************************
+**
+** Function         AVRC_AddRecord
+**
+** Description      This function is called to build an AVRCP SDP record.
+**                  Prior to calling this function the application must
+**                  call SDP_CreateRecord() to create an SDP record.
+**
+**                  Input Parameters:
+**                      service_uuid:  Indicates TG(UUID_SERVCLASS_AV_REM_CTRL_TARGET)
+**                                            or CT(UUID_SERVCLASS_AV_REMOTE_CONTROL)
+**
+**                      p_service_name:  Pointer to a null-terminated character
+**                      string containing the service name.
+**                      If service name is not used set this to NULL.
+**
+**                      p_provider_name:  Pointer to a null-terminated character
+**                      string containing the provider name.
+**                      If provider name is not used set this to NULL.
+**
+**                      categories:  Supported categories.
+**
+**                      sdp_handle:  SDP handle returned by SDP_CreateRecord().
+**
+**                      browse_supported:  browse support info.
+**
+**                      profile_version:  profile version of avrcp record.
+**
+**                  Output Parameters:
+**                      None.
+**
+** Returns          AVRC_SUCCESS if successful.
+**                  AVRC_NO_RESOURCES if not enough resources to build the SDP record.
+**
+******************************************************************************/
+UINT16 AVRC_AddRecord(UINT16 service_uuid, char *p_service_name,
+                char *p_provider_name, UINT16 categories, UINT32 sdp_handle,
+                BOOLEAN browse_supported, UINT16 profile_version)
+{
+    UINT16      browse_list[1];
+    BOOLEAN     result = TRUE;
+    UINT8       temp[8];
+    UINT8       *p;
+    UINT16      count = 1;
+    UINT8       index = 0;
+    UINT16      class_list[2];
+
+
+    AVRC_TRACE_API("AVRC_AddRecord uuid: %x", service_uuid);
+
+    if( service_uuid != UUID_SERVCLASS_AV_REM_CTRL_TARGET && service_uuid != UUID_SERVCLASS_AV_REMOTE_CONTROL )
+        return AVRC_BAD_PARAM;
+
+    /* add service class id list */
+    class_list[0] = service_uuid;
+    if((service_uuid == UUID_SERVCLASS_AV_REMOTE_CONTROL ) && (profile_version > AVRC_REV_1_3))
+    {
+        class_list[1] = UUID_SERVCLASS_AV_REM_CTRL_CONTROL;
+        count = 2;
+    }
+    result &= SDP_AddServiceClassIdList(sdp_handle, count, class_list);
+
+    /* add protocol descriptor list   */
+    tSDP_PROTOCOL_ELEM  avrc_proto_desc_list [AVRC_NUM_PROTO_ELEMS];
+    avrc_proto_desc_list[0].num_params = 1;
+    avrc_proto_desc_list[0].protocol_uuid = UUID_PROTOCOL_L2CAP;
+    avrc_proto_desc_list[0].params[0] = AVCT_PSM;
+    avrc_proto_desc_list[0].params[1] = 0;
+    for (index = 1; index < AVRC_NUM_PROTO_ELEMS; index++)
+    {
+        avrc_proto_desc_list[index].num_params = 1;
+        avrc_proto_desc_list[index].protocol_uuid = UUID_PROTOCOL_AVCTP;
+        avrc_proto_desc_list[index].params[0] = AVCT_REV_1_4;
+        avrc_proto_desc_list[index].params[1] = 0;
+    }
+    result &= SDP_AddProtocolList(sdp_handle, AVRC_NUM_PROTO_ELEMS,
+                                                  (tSDP_PROTOCOL_ELEM *)avrc_proto_desc_list);
+
+    /* additional protocal descriptor, required only for version > 1.3    */
+    if ((profile_version > AVRC_REV_1_3) && (browse_supported))
+    {
+        tSDP_PROTO_LIST_ELEM  avrc_add_proto_desc_list;
+        avrc_add_proto_desc_list.num_elems = 2;
+        avrc_add_proto_desc_list.list_elem[0].num_params = 1;
+        avrc_add_proto_desc_list.list_elem[0].protocol_uuid = UUID_PROTOCOL_L2CAP;
+        avrc_add_proto_desc_list.list_elem[0].params[0] = AVCT_BR_PSM;
+        avrc_add_proto_desc_list.list_elem[0].params[1] = 0;
+        avrc_add_proto_desc_list.list_elem[1].num_params = 1;
+        avrc_add_proto_desc_list.list_elem[1].protocol_uuid = UUID_PROTOCOL_AVCTP;
+        avrc_add_proto_desc_list.list_elem[1].params[0] = AVCT_REV_1_4;
+        avrc_add_proto_desc_list.list_elem[1].params[1] = 0;
+
+        result &= SDP_AddAdditionProtoLists( sdp_handle, 1, (tSDP_PROTO_LIST_ELEM *)&avrc_add_proto_desc_list);
+    }
+    /* add profile descriptor list   */
+    result &= SDP_AddProfileDescriptorList(sdp_handle, UUID_SERVCLASS_AV_REMOTE_CONTROL, profile_version);
+
+    /* add supported categories */
+    p = temp;
+    UINT16_TO_BE_STREAM(p, categories);
+    result &= SDP_AddAttribute(sdp_handle, ATTR_ID_SUPPORTED_FEATURES, UINT_DESC_TYPE,
+              (UINT32)2, (UINT8*)temp);
+
+    /* add provider name */
+    if (p_provider_name != NULL)
+    {
+        result &= SDP_AddAttribute(sdp_handle, ATTR_ID_PROVIDER_NAME, TEXT_STR_DESC_TYPE,
+                    (UINT32)(strlen(p_provider_name)+1), (UINT8 *) p_provider_name);
+    }
+
+    /* add service name */
+    if (p_service_name != NULL)
+    {
+        result &= SDP_AddAttribute(sdp_handle, ATTR_ID_SERVICE_NAME, TEXT_STR_DESC_TYPE,
+                    (UINT32)(strlen(p_service_name)+1), (UINT8 *) p_service_name);
+    }
+
+    /* add browse group list */
+    browse_list[0] = UUID_SERVCLASS_PUBLIC_BROWSE_GROUP;
+    result &= SDP_AddUuidSequence(sdp_handle, ATTR_ID_BROWSE_GROUP_LIST, 1, browse_list);
+
+
+    return (result ? AVRC_SUCCESS : AVRC_FAIL);
+}
+
+
+
+/******************************************************************************
+**
+** Function         AVRC_SetTraceLevel
+**
+** Description      Sets the trace level for AVRC. If 0xff is passed, the
+**                  current trace level is returned.
+**
+**                  Input Parameters:
+**                      new_level:  The level to set the AVRC tracing to:
+**                      0xff-returns the current setting.
+**                      0-turns off tracing.
+**                      >= 1-Errors.
+**                      >= 2-Warnings.
+**                      >= 3-APIs.
+**                      >= 4-Events.
+**                      >= 5-Debug.
+**
+** Returns          The new trace level or current trace level if
+**                  the input parameter is 0xff.
+**
+******************************************************************************/
+UINT8 AVRC_SetTraceLevel (UINT8 new_level)
+{
+    if (new_level != 0xFF)
+        avrc_cb.trace_level = new_level;
+
+    return (avrc_cb.trace_level);
+}
+
+/*******************************************************************************
+**
+** Function         AVRC_Init
+**
+** Description      This function is called at stack startup to allocate the
+**                  control block (if using dynamic memory), and initializes the
+**                  control block and tracing level.
+**
+** Returns          void
+**
+*******************************************************************************/
+void AVRC_Init(void)
+{
+    memset(&avrc_cb, 0, sizeof(tAVRC_CB));
+
+#if defined(AVRC_INITIAL_TRACE_LEVEL)
+    avrc_cb.trace_level  = AVRC_INITIAL_TRACE_LEVEL;
+#else
+    avrc_cb.trace_level  = BT_TRACE_LEVEL_NONE;
+#endif
+}
+
diff --git a/rtkbt/code/bt/stack/avrc/avrc_utils.c b/rtkbt/code/bt/stack/avrc/avrc_utils.c
new file mode 100755
index 0000000..b381e84
--- /dev/null
+++ b/rtkbt/code/bt/stack/avrc/avrc_utils.c
@@ -0,0 +1,242 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2003-2013 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+#include <string.h>
+
+#include "bt_common.h"
+#include "avrc_api.h"
+#include "avrc_int.h"
+
+
+#if (AVRC_METADATA_INCLUDED == TRUE)
+
+/**************************************************************************
+**
+** Function         AVRC_IsValidAvcType
+**
+** Description      Check if correct AVC type is specified
+**
+** Returns          returns TRUE if it is valid
+**
+**
+*******************************************************************************/
+BOOLEAN AVRC_IsValidAvcType(UINT8 pdu_id, UINT8 avc_type)
+{
+    BOOLEAN result=FALSE;
+
+    if (avc_type < AVRC_RSP_NOT_IMPL) /* command msg */
+    {
+        switch (pdu_id)
+        {
+        case AVRC_PDU_GET_CAPABILITIES:            /* 0x10 */
+        case AVRC_PDU_LIST_PLAYER_APP_ATTR:        /* 0x11 */
+        case AVRC_PDU_LIST_PLAYER_APP_VALUES:      /* 0x12 */
+        case AVRC_PDU_GET_CUR_PLAYER_APP_VALUE:    /* 0x13 */
+        case AVRC_PDU_GET_PLAYER_APP_ATTR_TEXT:    /* 0x15 */
+        case AVRC_PDU_GET_PLAYER_APP_VALUE_TEXT:   /* 0x16 */
+        case AVRC_PDU_GET_ELEMENT_ATTR:            /* 0x20 */
+        case AVRC_PDU_GET_PLAY_STATUS:             /* 0x30 */
+             if (avc_type == AVRC_CMD_STATUS)
+                result=TRUE;
+             break;
+
+        case AVRC_PDU_SET_PLAYER_APP_VALUE:        /* 0x14 */
+        case AVRC_PDU_INFORM_DISPLAY_CHARSET:      /* 0x17 */
+        case AVRC_PDU_INFORM_BATTERY_STAT_OF_CT:   /* 0x18 */
+        case AVRC_PDU_REQUEST_CONTINUATION_RSP:    /* 0x40 */
+        case AVRC_PDU_ABORT_CONTINUATION_RSP:      /* 0x41 */
+        case AVRC_PDU_SET_ADDRESSED_PLAYER:
+        case AVRC_PDU_PLAY_ITEM:
+        case AVRC_PDU_SET_ABSOLUTE_VOLUME:
+             if (avc_type == AVRC_CMD_CTRL)
+                result=TRUE;
+             break;
+
+        case AVRC_PDU_REGISTER_NOTIFICATION:       /* 0x31 */
+             if (avc_type == AVRC_CMD_NOTIF)
+                result=TRUE;
+             break;
+        }
+    }
+    else  /* response msg */
+    {
+        if (avc_type >= AVRC_RSP_NOT_IMPL  &&
+           avc_type <= AVRC_RSP_INTERIM    )
+           result=TRUE;
+    }
+
+    return result;
+}
+
+/*******************************************************************************
+**
+** Function         avrc_is_valid_player_attrib_value
+**
+** Description      Check if the given attrib value is valid for its attribute
+**
+** Returns          returns TRUE if it is valid
+**
+*******************************************************************************/
+BOOLEAN avrc_is_valid_player_attrib_value(UINT8 attrib, UINT8 value)
+{
+    BOOLEAN result=FALSE;
+
+    switch(attrib)
+    {
+    case AVRC_PLAYER_SETTING_EQUALIZER:
+         if ((value > 0)  &&
+            (value <= AVRC_PLAYER_VAL_ON))
+            result=TRUE;
+         break;
+
+    case AVRC_PLAYER_SETTING_REPEAT:
+         if ((value > 0)  &&
+            (value <= AVRC_PLAYER_VAL_GROUP_REPEAT))
+            result=TRUE;
+         break;
+
+    case AVRC_PLAYER_SETTING_SHUFFLE:
+    case AVRC_PLAYER_SETTING_SCAN:
+         if ((value > 0)  &&
+            (value <= AVRC_PLAYER_VAL_GROUP_SHUFFLE))
+            result=TRUE;
+         break;
+    }
+
+    if (attrib >= AVRC_PLAYER_SETTING_LOW_MENU_EXT)
+       result = TRUE;
+
+    if (!result)
+        AVRC_TRACE_ERROR(
+            "avrc_is_valid_player_attrib_value() found not matching attrib(x%x)-value(x%x) pair!",
+            attrib, value);
+
+    return result;
+}
+
+/*******************************************************************************
+**
+** Function         AVRC_IsValidPlayerAttr
+**
+** Description      Check if the given attrib value is a valid one
+**
+** Returns          returns TRUE if it is valid
+**
+*******************************************************************************/
+BOOLEAN AVRC_IsValidPlayerAttr(UINT8 attr)
+{
+    BOOLEAN result=FALSE;
+
+    if ( (attr >= AVRC_PLAYER_SETTING_EQUALIZER && attr <= AVRC_PLAYER_SETTING_SCAN) ||
+         (attr >= AVRC_PLAYER_SETTING_LOW_MENU_EXT) )
+    {
+       result = TRUE;
+    }
+
+    return result;
+}
+
+
+
+/*******************************************************************************
+**
+** Function         avrc_pars_pass_thru
+**
+** Description      This function parses the pass thru commands defined by
+**                  Bluetooth SIG
+**
+** Returns          AVRC_STS_NO_ERROR, if the message in p_data is parsed successfully.
+**                  Otherwise, the error code defined by AVRCP 1.4
+**
+*******************************************************************************/
+tAVRC_STS avrc_pars_pass_thru(tAVRC_MSG_PASS *p_msg, UINT16 *p_vendor_unique_id)
+{
+    UINT8      *p_data;
+    UINT32      co_id;
+    UINT16      id;
+    tAVRC_STS  status = AVRC_STS_BAD_CMD;
+
+    if (p_msg->op_id == AVRC_ID_VENDOR && p_msg->pass_len == AVRC_PASS_THRU_GROUP_LEN)
+    {
+        p_data = p_msg->p_pass_data;
+        AVRC_BE_STREAM_TO_CO_ID (co_id, p_data);
+        if (co_id == AVRC_CO_METADATA)
+        {
+            BE_STREAM_TO_UINT16 (id, p_data);
+            if (AVRC_IS_VALID_GROUP(id))
+            {
+                *p_vendor_unique_id = id;
+                status = AVRC_STS_NO_ERROR;
+            }
+        }
+    }
+    return status;
+}
+
+/*******************************************************************************
+**
+** Function         avrc_opcode_from_pdu
+**
+** Description      This function returns the opcode of the given pdu
+**
+** Returns          AVRC_OP_VENDOR, AVRC_OP_PASS_THRU or AVRC_OP_BROWSE
+**
+*******************************************************************************/
+UINT8 avrc_opcode_from_pdu(UINT8 pdu)
+{
+    UINT8 opcode = 0;
+
+    switch (pdu)
+    {
+    case AVRC_PDU_NEXT_GROUP:
+    case AVRC_PDU_PREV_GROUP: /* pass thru */
+        opcode  = AVRC_OP_PASS_THRU;
+        break;
+
+    default: /* vendor */
+        opcode  = AVRC_OP_VENDOR;
+        break;
+    }
+
+    return opcode;
+}
+
+/*******************************************************************************
+**
+** Function         avrc_is_valid_opcode
+**
+** Description      This function returns the opcode of the given pdu
+**
+** Returns          AVRC_OP_VENDOR, AVRC_OP_PASS_THRU or AVRC_OP_BROWSE
+**
+*******************************************************************************/
+BOOLEAN avrc_is_valid_opcode(UINT8 opcode)
+{
+    BOOLEAN is_valid = FALSE;
+    switch (opcode)
+    {
+    case AVRC_OP_BROWSE:
+    case AVRC_OP_PASS_THRU:
+    case AVRC_OP_VENDOR:
+        is_valid = TRUE;
+        break;
+    }
+    return is_valid;
+}
+
+#endif /* (AVRC_METADATA_INCLUDED == TRUE) */
+
diff --git a/rtkbt/code/bt/stack/bnep/bnep_api.c b/rtkbt/code/bt/stack/bnep/bnep_api.c
new file mode 100755
index 0000000..9a7b5d9
--- /dev/null
+++ b/rtkbt/code/bt/stack/bnep/bnep_api.c
@@ -0,0 +1,744 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2001-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains the BNEP API code
+ *
+ ******************************************************************************/
+
+#include <string.h>
+#include "bnep_api.h"
+#include "bnep_int.h"
+
+
+extern fixed_queue_t *btu_general_alarm_queue;
+
+/*******************************************************************************
+**
+** Function         BNEP_Init
+**
+** Description      This function initializes the BNEP unit. It should be called
+**                  before accessing any other APIs to initialize the control block
+**
+** Returns          void
+**
+*******************************************************************************/
+void BNEP_Init (void)
+{
+    memset (&bnep_cb, 0, sizeof (tBNEP_CB));
+
+#if defined(BNEP_INITIAL_TRACE_LEVEL)
+    bnep_cb.trace_level = BNEP_INITIAL_TRACE_LEVEL;
+#else
+    bnep_cb.trace_level = BT_TRACE_LEVEL_NONE;    /* No traces */
+#endif
+}
+
+
+/*******************************************************************************
+**
+** Function         BNEP_Register
+**
+** Description      This function is called by the upper layer to register
+**                  its callbacks with BNEP
+**
+** Parameters:      p_reg_info - contains all callback function pointers
+**
+**
+** Returns          BNEP_SUCCESS        if registered successfully
+**                  BNEP_FAILURE        if connection state callback is missing
+**
+*******************************************************************************/
+tBNEP_RESULT BNEP_Register (tBNEP_REGISTER *p_reg_info)
+{
+    /* There should be connection state call back registered */
+    if ((!p_reg_info) || (!(p_reg_info->p_conn_state_cb)))
+        return BNEP_SECURITY_FAIL;
+
+    bnep_cb.p_conn_ind_cb       = p_reg_info->p_conn_ind_cb;
+    bnep_cb.p_conn_state_cb     = p_reg_info->p_conn_state_cb;
+    bnep_cb.p_data_ind_cb       = p_reg_info->p_data_ind_cb;
+    bnep_cb.p_data_buf_cb       = p_reg_info->p_data_buf_cb;
+    bnep_cb.p_filter_ind_cb     = p_reg_info->p_filter_ind_cb;
+    bnep_cb.p_mfilter_ind_cb    = p_reg_info->p_mfilter_ind_cb;
+    bnep_cb.p_tx_data_flow_cb   = p_reg_info->p_tx_data_flow_cb;
+
+    if (bnep_register_with_l2cap ())
+        return BNEP_SECURITY_FAIL;
+
+    bnep_cb.profile_registered  = TRUE;
+    return BNEP_SUCCESS;
+}
+
+
+/*******************************************************************************
+**
+** Function         BNEP_Deregister
+**
+** Description      This function is called by the upper layer to de-register
+**                  its callbacks.
+**
+** Parameters:      void
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void BNEP_Deregister (void)
+{
+    /* Clear all the call backs registered */
+    bnep_cb.p_conn_ind_cb       = NULL;
+    bnep_cb.p_conn_state_cb     = NULL;
+    bnep_cb.p_data_ind_cb       = NULL;
+    bnep_cb.p_data_buf_cb       = NULL;
+    bnep_cb.p_filter_ind_cb     = NULL;
+    bnep_cb.p_mfilter_ind_cb    = NULL;
+
+    bnep_cb.profile_registered  = FALSE;
+    L2CA_Deregister (BT_PSM_BNEP);
+}
+
+
+/*******************************************************************************
+**
+** Function         BNEP_Connect
+**
+** Description      This function creates a BNEP connection to a remote
+**                  device.
+**
+** Parameters:      p_rem_addr  - BD_ADDR of the peer
+**                  src_uuid    - source uuid for the connection
+**                  dst_uuid    - destination uuid for the connection
+**                  p_handle    - pointer to return the handle for the connection
+**
+** Returns          BNEP_SUCCESS                if connection started
+**                  BNEP_NO_RESOURCES           if no resources
+**
+*******************************************************************************/
+tBNEP_RESULT BNEP_Connect (BD_ADDR p_rem_bda,
+                           tBT_UUID *src_uuid,
+                           tBT_UUID *dst_uuid,
+                           UINT16 *p_handle)
+{
+    UINT16          cid;
+    tBNEP_CONN      *p_bcb = bnepu_find_bcb_by_bd_addr (p_rem_bda);
+
+    BNEP_TRACE_API ("BNEP_Connect()  BDA: %02x-%02x-%02x-%02x-%02x-%02x",
+                     p_rem_bda[0], p_rem_bda[1], p_rem_bda[2],
+                     p_rem_bda[3], p_rem_bda[4], p_rem_bda[5]);
+
+    if (!bnep_cb.profile_registered)
+        return BNEP_WRONG_STATE;
+
+    /* Both source and destination UUID lengths should be same */
+    if (src_uuid->len != dst_uuid->len)
+        return BNEP_CONN_FAILED_UUID_SIZE;
+
+    if (!p_bcb)
+    {
+        if ((p_bcb = bnepu_allocate_bcb (p_rem_bda)) == NULL)
+            return (BNEP_NO_RESOURCES);
+    }
+    else if (p_bcb->con_state != BNEP_STATE_CONNECTED)
+            return BNEP_WRONG_STATE;
+    else
+    {
+        /* Backup current UUID values to restore if role change fails */
+        memcpy ((UINT8 *)&(p_bcb->prv_src_uuid), (UINT8 *)&(p_bcb->src_uuid), sizeof (tBT_UUID));
+        memcpy ((UINT8 *)&(p_bcb->prv_dst_uuid), (UINT8 *)&(p_bcb->dst_uuid), sizeof (tBT_UUID));
+    }
+
+    /* We are the originator of this connection */
+    p_bcb->con_flags |= BNEP_FLAGS_IS_ORIG;
+
+    memcpy ((UINT8 *)&(p_bcb->src_uuid), (UINT8 *)src_uuid, sizeof (tBT_UUID));
+    memcpy ((UINT8 *)&(p_bcb->dst_uuid), (UINT8 *)dst_uuid, sizeof (tBT_UUID));
+
+    if (p_bcb->con_state == BNEP_STATE_CONNECTED)
+    {
+        /* Transition to the next appropriate state, waiting for connection confirm. */
+        p_bcb->con_state = BNEP_STATE_SEC_CHECKING;
+
+        BNEP_TRACE_API ("BNEP initiating security procedures for src uuid 0x%x",
+            p_bcb->src_uuid.uu.uuid16);
+
+#if (defined (BNEP_DO_AUTH_FOR_ROLE_SWITCH) && BNEP_DO_AUTH_FOR_ROLE_SWITCH == TRUE)
+        btm_sec_mx_access_request (p_bcb->rem_bda, BT_PSM_BNEP, TRUE,
+                                   BTM_SEC_PROTO_BNEP,
+                                   bnep_get_uuid32(src_uuid),
+                                   &bnep_sec_check_complete, p_bcb);
+#else
+        bnep_sec_check_complete (p_bcb->rem_bda, p_bcb, BTM_SUCCESS);
+#endif
+
+    }
+    else
+    {
+        /* Transition to the next appropriate state, waiting for connection confirm. */
+        p_bcb->con_state = BNEP_STATE_CONN_START;
+
+        if ((cid = L2CA_ConnectReq (BT_PSM_BNEP, p_bcb->rem_bda)) != 0)
+        {
+            p_bcb->l2cap_cid = cid;
+
+        }
+        else
+        {
+            BNEP_TRACE_ERROR ("BNEP - Originate failed");
+            if (bnep_cb.p_conn_state_cb)
+                (*bnep_cb.p_conn_state_cb) (p_bcb->handle, p_bcb->rem_bda, BNEP_CONN_FAILED, FALSE);
+            bnepu_release_bcb (p_bcb);
+            return BNEP_CONN_FAILED;
+        }
+
+        /* Start timer waiting for connect */
+        alarm_set_on_queue(p_bcb->conn_timer, BNEP_CONN_TIMEOUT_MS,
+                           bnep_conn_timer_timeout, p_bcb,
+                           btu_general_alarm_queue);
+    }
+
+    *p_handle = p_bcb->handle;
+    return (BNEP_SUCCESS);
+}
+
+
+/*******************************************************************************
+**
+** Function         BNEP_ConnectResp
+**
+** Description      This function is called in responce to connection indication
+**
+**
+** Parameters:      handle  - handle given in the connection indication
+**                  resp    - responce for the connection indication
+**
+** Returns          BNEP_SUCCESS                if connection started
+**                  BNEP_WRONG_HANDLE           if the connection is not found
+**                  BNEP_WRONG_STATE            if the responce is not expected
+**
+*******************************************************************************/
+tBNEP_RESULT BNEP_ConnectResp (UINT16 handle, tBNEP_RESULT resp)
+{
+    tBNEP_CONN      *p_bcb;
+    UINT16          resp_code = BNEP_SETUP_CONN_OK;
+
+    if ((!handle) || (handle > BNEP_MAX_CONNECTIONS))
+        return (BNEP_WRONG_HANDLE);
+
+    p_bcb = &(bnep_cb.bcb[handle - 1]);
+
+    if (p_bcb->con_state != BNEP_STATE_CONN_SETUP ||
+        (!(p_bcb->con_flags & BNEP_FLAGS_SETUP_RCVD)))
+        return (BNEP_WRONG_STATE);
+
+    BNEP_TRACE_API ("BNEP_ConnectResp()  for handle %d, responce %d", handle, resp);
+
+    /* Form appropriate responce based on profile responce */
+    if      (resp == BNEP_CONN_FAILED_SRC_UUID)   resp_code = BNEP_SETUP_INVALID_SRC_UUID;
+    else if (resp == BNEP_CONN_FAILED_DST_UUID)   resp_code = BNEP_SETUP_INVALID_DEST_UUID;
+    else if (resp == BNEP_CONN_FAILED_UUID_SIZE)  resp_code = BNEP_SETUP_INVALID_UUID_SIZE;
+    else if (resp == BNEP_SUCCESS)                resp_code = BNEP_SETUP_CONN_OK;
+    else                                          resp_code = BNEP_SETUP_CONN_NOT_ALLOWED;
+
+    bnep_send_conn_responce (p_bcb, resp_code);
+    p_bcb->con_flags &= (~BNEP_FLAGS_SETUP_RCVD);
+
+    if (resp == BNEP_SUCCESS)
+        bnep_connected (p_bcb);
+    else if (p_bcb->con_flags & BNEP_FLAGS_CONN_COMPLETED)
+    {
+        /* Restore the original parameters */
+        p_bcb->con_state = BNEP_STATE_CONNECTED;
+        p_bcb->con_flags &= (~BNEP_FLAGS_SETUP_RCVD);
+
+        memcpy ((UINT8 *)&(p_bcb->src_uuid), (UINT8 *)&(p_bcb->prv_src_uuid), sizeof (tBT_UUID));
+        memcpy ((UINT8 *)&(p_bcb->dst_uuid), (UINT8 *)&(p_bcb->prv_dst_uuid), sizeof (tBT_UUID));
+    }
+
+    /* Process remaining part of the setup message (extension headers) */
+    if (p_bcb->p_pending_data)
+    {
+        UINT8   extension_present = TRUE, *p, ext_type;
+        UINT16  rem_len;
+
+        rem_len = p_bcb->p_pending_data->len;
+        p       = (UINT8 *)(p_bcb->p_pending_data + 1) + p_bcb->p_pending_data->offset;
+        while (extension_present && p && rem_len)
+        {
+            ext_type = *p++;
+            extension_present = ext_type >> 7;
+            ext_type &= 0x7F;
+
+            /* if unknown extension present stop processing */
+            if (ext_type)
+                break;
+
+            p = bnep_process_control_packet (p_bcb, p, &rem_len, TRUE);
+        }
+
+        osi_free_and_reset((void **)&p_bcb->p_pending_data);
+    }
+    return (BNEP_SUCCESS);
+}
+
+
+/*******************************************************************************
+**
+** Function         BNEP_Disconnect
+**
+** Description      This function is called to close the specified connection.
+**
+** Parameters:      handle   - handle of the connection
+**
+** Returns          BNEP_SUCCESS                if connection is disconnected
+**                  BNEP_WRONG_HANDLE           if no connection is not found
+**
+*******************************************************************************/
+tBNEP_RESULT BNEP_Disconnect (UINT16 handle)
+{
+    tBNEP_CONN      *p_bcb;
+
+    if ((!handle) || (handle > BNEP_MAX_CONNECTIONS))
+        return (BNEP_WRONG_HANDLE);
+
+    p_bcb = &(bnep_cb.bcb[handle - 1]);
+
+    if (p_bcb->con_state == BNEP_STATE_IDLE)
+        return (BNEP_WRONG_HANDLE);
+
+    BNEP_TRACE_API ("BNEP_Disconnect()  for handle %d", handle);
+
+    L2CA_DisconnectReq (p_bcb->l2cap_cid);
+
+    bnepu_release_bcb (p_bcb);
+
+    return (BNEP_SUCCESS);
+}
+
+
+/*******************************************************************************
+**
+** Function         BNEP_WriteBuf
+**
+** Description      This function sends data in a GKI buffer on BNEP connection
+**
+** Parameters:      handle       - handle of the connection to write
+**                  p_dest_addr  - BD_ADDR/Ethernet addr of the destination
+**                  p_buf        - pointer to address of buffer with data
+**                  protocol     - protocol type of the packet
+**                  p_src_addr   - (optional) BD_ADDR/ethernet address of the source
+**                                 (should be NULL if it is local BD Addr)
+**                  fw_ext_present - forwarded extensions present
+**
+** Returns:         BNEP_WRONG_HANDLE       - if passed handle is not valid
+**                  BNEP_MTU_EXCEDED        - If the data length is greater than MTU
+**                  BNEP_IGNORE_CMD         - If the packet is filtered out
+**                  BNEP_Q_SIZE_EXCEEDED    - If the Tx Q is full
+**                  BNEP_SUCCESS            - If written successfully
+**
+*******************************************************************************/
+tBNEP_RESULT BNEP_WriteBuf (UINT16 handle,
+                            UINT8 *p_dest_addr,
+                            BT_HDR *p_buf,
+                            UINT16 protocol,
+                            UINT8 *p_src_addr,
+                            BOOLEAN fw_ext_present)
+{
+    tBNEP_CONN      *p_bcb;
+    UINT8           *p_data;
+
+    if ((!handle) || (handle > BNEP_MAX_CONNECTIONS))
+    {
+        osi_free(p_buf);
+        return (BNEP_WRONG_HANDLE);
+    }
+
+    p_bcb = &(bnep_cb.bcb[handle - 1]);
+    /* Check MTU size */
+    if (p_buf->len > BNEP_MTU_SIZE)
+    {
+        BNEP_TRACE_ERROR ("BNEP_Write() length %d exceeded MTU %d", p_buf->len, BNEP_MTU_SIZE);
+        osi_free(p_buf);
+        return (BNEP_MTU_EXCEDED);
+    }
+
+    /* Check if the packet should be filtered out */
+    p_data = (UINT8 *)(p_buf + 1) + p_buf->offset;
+    if (bnep_is_packet_allowed (p_bcb, p_dest_addr, protocol, fw_ext_present, p_data) != BNEP_SUCCESS)
+    {
+        /*
+        ** If packet is filtered and ext headers are present
+        ** drop the data and forward the ext headers
+        */
+        if (fw_ext_present)
+        {
+            UINT8       ext, length;
+            UINT16      org_len, new_len;
+            /* parse the extension headers and findout the new packet len */
+            org_len = p_buf->len;
+            new_len = 0;
+            do {
+
+                ext     = *p_data++;
+                length  = *p_data++;
+                p_data += length;
+
+                new_len += (length + 2);
+
+                if (new_len > org_len)
+                {
+                    osi_free(p_buf);
+                    return BNEP_IGNORE_CMD;
+                }
+
+            } while (ext & 0x80);
+
+            if (protocol != BNEP_802_1_P_PROTOCOL)
+                protocol = 0;
+            else
+            {
+                new_len += 4;
+                p_data[2] = 0;
+                p_data[3] = 0;
+            }
+            p_buf->len  = new_len;
+        }
+        else
+        {
+            osi_free(p_buf);
+            return BNEP_IGNORE_CMD;
+        }
+    }
+
+    /* Check transmit queue */
+    if (fixed_queue_length(p_bcb->xmit_q) >= BNEP_MAX_XMITQ_DEPTH)
+    {
+        osi_free(p_buf);
+        return (BNEP_Q_SIZE_EXCEEDED);
+    }
+
+    /* Build the BNEP header */
+    bnepu_build_bnep_hdr (p_bcb, p_buf, protocol, p_src_addr, p_dest_addr, fw_ext_present);
+
+    /* Send the data or queue it up */
+    bnepu_check_send_packet (p_bcb, p_buf);
+
+    return (BNEP_SUCCESS);
+}
+
+
+/*******************************************************************************
+**
+** Function         BNEP_Write
+**
+** Description      This function sends data over a BNEP connection
+**
+** Parameters:      handle       - handle of the connection to write
+**                  p_dest_addr  - BD_ADDR/Ethernet addr of the destination
+**                  p_data       - pointer to data start
+**                  protocol     - protocol type of the packet
+**                  p_src_addr   - (optional) BD_ADDR/ethernet address of the source
+**                                 (should be NULL if it is local BD Addr)
+**                  fw_ext_present - forwarded extensions present
+**
+** Returns:         BNEP_WRONG_HANDLE       - if passed handle is not valid
+**                  BNEP_MTU_EXCEDED        - If the data length is greater than MTU
+**                  BNEP_IGNORE_CMD         - If the packet is filtered out
+**                  BNEP_Q_SIZE_EXCEEDED    - If the Tx Q is full
+**                  BNEP_NO_RESOURCES       - If not able to allocate a buffer
+**                  BNEP_SUCCESS            - If written successfully
+**
+*******************************************************************************/
+tBNEP_RESULT  BNEP_Write (UINT16 handle,
+                          UINT8 *p_dest_addr,
+                          UINT8 *p_data,
+                          UINT16 len,
+                          UINT16 protocol,
+                          UINT8 *p_src_addr,
+                          BOOLEAN fw_ext_present)
+{
+    tBNEP_CONN   *p_bcb;
+    UINT8        *p;
+
+    /* Check MTU size. Consider the possibility of having extension headers */
+    if (len > BNEP_MTU_SIZE)
+    {
+        BNEP_TRACE_ERROR ("BNEP_Write() length %d exceeded MTU %d", len, BNEP_MTU_SIZE);
+        return (BNEP_MTU_EXCEDED);
+    }
+
+    if ((!handle) || (handle > BNEP_MAX_CONNECTIONS))
+        return (BNEP_WRONG_HANDLE);
+
+    p_bcb = &(bnep_cb.bcb[handle - 1]);
+
+    /* Check if the packet should be filtered out */
+    if (bnep_is_packet_allowed (p_bcb, p_dest_addr, protocol, fw_ext_present, p_data) != BNEP_SUCCESS)
+    {
+        /*
+        ** If packet is filtered and ext headers are present
+        ** drop the data and forward the ext headers
+        */
+        if (fw_ext_present)
+        {
+            UINT8       ext, length;
+            UINT16      org_len, new_len;
+            /* parse the extension headers and findout the new packet len */
+            org_len = len;
+            new_len = 0;
+            p       = p_data;
+            do {
+
+                ext     = *p_data++;
+                length  = *p_data++;
+                p_data += length;
+
+                new_len += (length + 2);
+
+                if (new_len > org_len)
+                    return BNEP_IGNORE_CMD;
+
+            } while (ext & 0x80);
+
+            if (protocol != BNEP_802_1_P_PROTOCOL)
+                protocol = 0;
+            else
+            {
+                new_len += 4;
+                p_data[2] = 0;
+                p_data[3] = 0;
+            }
+            len         = new_len;
+            p_data      = p;
+        }
+        else
+            return BNEP_IGNORE_CMD;
+    }
+
+    /* Check transmit queue */
+    if (fixed_queue_length(p_bcb->xmit_q) >= BNEP_MAX_XMITQ_DEPTH)
+        return (BNEP_Q_SIZE_EXCEEDED);
+
+    /* Get a buffer to copy the data into */
+    BT_HDR *p_buf = (BT_HDR *)osi_malloc(BNEP_BUF_SIZE);
+
+    p_buf->len = len;
+    p_buf->offset = BNEP_MINIMUM_OFFSET;
+    p = (UINT8 *)(p_buf + 1) + BNEP_MINIMUM_OFFSET;
+
+    memcpy (p, p_data, len);
+
+    /* Build the BNEP header */
+    bnepu_build_bnep_hdr (p_bcb, p_buf, protocol, p_src_addr, p_dest_addr, fw_ext_present);
+
+    /* Send the data or queue it up */
+    bnepu_check_send_packet (p_bcb, p_buf);
+
+    return (BNEP_SUCCESS);
+}
+
+
+/*******************************************************************************
+**
+** Function         BNEP_SetProtocolFilters
+**
+** Description      This function sets the protocol filters on peer device
+**
+** Parameters:      handle        - Handle for the connection
+**                  num_filters   - total number of filter ranges
+**                  p_start_array - Array of beginings of all protocol ranges
+**                  p_end_array   - Array of ends of all protocol ranges
+**
+** Returns          BNEP_WRONG_HANDLE           - if the connection handle is not valid
+**                  BNEP_SET_FILTER_FAIL        - if the connection is in wrong state
+**                  BNEP_TOO_MANY_FILTERS       - if too many filters
+**                  BNEP_SUCCESS                - if request sent successfully
+**
+*******************************************************************************/
+tBNEP_RESULT BNEP_SetProtocolFilters (UINT16 handle,
+                                      UINT16 num_filters,
+                                      UINT16 *p_start_array,
+                                      UINT16 *p_end_array)
+{
+    UINT16          xx;
+    tBNEP_CONN     *p_bcb;
+
+    if ((!handle) || (handle > BNEP_MAX_CONNECTIONS))
+        return (BNEP_WRONG_HANDLE);
+
+    p_bcb = &(bnep_cb.bcb[handle - 1]);
+
+    /* Check the connection state */
+    if ((p_bcb->con_state != BNEP_STATE_CONNECTED) &&
+        (!(p_bcb->con_flags & BNEP_FLAGS_CONN_COMPLETED)))
+        return (BNEP_WRONG_STATE);
+
+    /* Validate the parameters */
+    if (num_filters && (!p_start_array || !p_end_array))
+        return (BNEP_SET_FILTER_FAIL);
+
+    if (num_filters > BNEP_MAX_PROT_FILTERS)
+        return (BNEP_TOO_MANY_FILTERS);
+
+    /* Fill the filter values in connnection block */
+    for (xx = 0; xx < num_filters; xx++)
+    {
+        p_bcb->sent_prot_filter_start[xx] = *p_start_array++;
+        p_bcb->sent_prot_filter_end[xx]   = *p_end_array++;
+    }
+
+    p_bcb->sent_num_filters = num_filters;
+
+    bnepu_send_peer_our_filters (p_bcb);
+
+    return (BNEP_SUCCESS);
+}
+
+
+/*******************************************************************************
+**
+** Function         BNEP_SetMulticastFilters
+**
+** Description      This function sets the filters for multicast addresses for BNEP.
+**
+** Parameters:      handle        - Handle for the connection
+**                  num_filters   - total number of filter ranges
+**                  p_start_array - Pointer to sequence of beginings of all
+**                                         multicast address ranges
+**                  p_end_array   - Pointer to sequence of ends of all
+**                                         multicast address ranges
+**
+** Returns          BNEP_WRONG_HANDLE           - if the connection handle is not valid
+**                  BNEP_SET_FILTER_FAIL        - if the connection is in wrong state
+**                  BNEP_TOO_MANY_FILTERS       - if too many filters
+**                  BNEP_SUCCESS                - if request sent successfully
+**
+*******************************************************************************/
+tBNEP_RESULT BNEP_SetMulticastFilters (UINT16 handle,
+                                       UINT16 num_filters,
+                                       UINT8 *p_start_array,
+                                       UINT8 *p_end_array)
+{
+    UINT16          xx;
+    tBNEP_CONN     *p_bcb;
+
+    if ((!handle) || (handle > BNEP_MAX_CONNECTIONS))
+        return (BNEP_WRONG_HANDLE);
+
+    p_bcb = &(bnep_cb.bcb[handle - 1]);
+
+    /* Check the connection state */
+    if ((p_bcb->con_state != BNEP_STATE_CONNECTED) &&
+        (!(p_bcb->con_flags & BNEP_FLAGS_CONN_COMPLETED)))
+        return (BNEP_WRONG_STATE);
+
+    /* Validate the parameters */
+    if (num_filters && (!p_start_array || !p_end_array))
+        return (BNEP_SET_FILTER_FAIL);
+
+    if (num_filters > BNEP_MAX_MULTI_FILTERS)
+        return (BNEP_TOO_MANY_FILTERS);
+
+    /* Fill the multicast filter values in connnection block */
+    for (xx = 0; xx < num_filters; xx++)
+    {
+        memcpy (p_bcb->sent_mcast_filter_start[xx], p_start_array, BD_ADDR_LEN);
+        memcpy (p_bcb->sent_mcast_filter_end[xx], p_end_array, BD_ADDR_LEN);
+
+        p_start_array += BD_ADDR_LEN;
+        p_end_array   += BD_ADDR_LEN;
+    }
+
+    p_bcb->sent_mcast_filters = num_filters;
+
+    bnepu_send_peer_our_multi_filters (p_bcb);
+
+    return (BNEP_SUCCESS);
+}
+
+/*******************************************************************************
+**
+** Function         BNEP_SetTraceLevel
+**
+** Description      This function sets the trace level for BNEP. If called with
+**                  a value of 0xFF, it simply reads the current trace level.
+**
+** Returns          the new (current) trace level
+**
+*******************************************************************************/
+UINT8 BNEP_SetTraceLevel (UINT8 new_level)
+{
+    if (new_level != 0xFF)
+        bnep_cb.trace_level = new_level;
+
+    return (bnep_cb.trace_level);
+}
+
+
+/*******************************************************************************
+**
+** Function         BNEP_GetStatus
+**
+** Description      This function gets the status information for BNEP connection
+**
+** Returns          BNEP_SUCCESS            - if the status is available
+**                  BNEP_NO_RESOURCES       - if no structure is passed for output
+**                  BNEP_WRONG_HANDLE       - if the handle is invalid
+**                  BNEP_WRONG_STATE        - if not in connected state
+**
+*******************************************************************************/
+tBNEP_RESULT BNEP_GetStatus (UINT16 handle, tBNEP_STATUS *p_status)
+{
+#if (defined (BNEP_SUPPORTS_STATUS_API) && BNEP_SUPPORTS_STATUS_API == TRUE)
+    tBNEP_CONN     *p_bcb;
+
+    if (!p_status)
+        return BNEP_NO_RESOURCES;
+
+    if ((!handle) || (handle > BNEP_MAX_CONNECTIONS))
+        return (BNEP_WRONG_HANDLE);
+
+    p_bcb = &(bnep_cb.bcb[handle - 1]);
+
+    memset (p_status, 0, sizeof (tBNEP_STATUS));
+    if ((p_bcb->con_state != BNEP_STATE_CONNECTED) &&
+        (!(p_bcb->con_flags & BNEP_FLAGS_CONN_COMPLETED)))
+        return BNEP_WRONG_STATE;
+
+    /* Read the status parameters from the connection control block */
+    p_status->con_status            = BNEP_STATUS_CONNECTED;
+    p_status->l2cap_cid             = p_bcb->l2cap_cid;
+    p_status->rem_mtu_size          = p_bcb->rem_mtu_size;
+    p_status->xmit_q_depth          = fixed_queue_length(p_bcb->xmit_q);
+    p_status->sent_num_filters      = p_bcb->sent_num_filters;
+    p_status->sent_mcast_filters    = p_bcb->sent_mcast_filters;
+    p_status->rcvd_num_filters      = p_bcb->rcvd_num_filters;
+    p_status->rcvd_mcast_filters    = p_bcb->rcvd_mcast_filters;
+
+    memcpy (p_status->rem_bda, p_bcb->rem_bda, BD_ADDR_LEN);
+    memcpy (&(p_status->src_uuid), &(p_bcb->src_uuid), sizeof (tBT_UUID));
+    memcpy (&(p_status->dst_uuid), &(p_bcb->dst_uuid), sizeof (tBT_UUID));
+
+    return BNEP_SUCCESS;
+#else
+    return (BNEP_IGNORE_CMD);
+#endif
+}
+
+
diff --git a/rtkbt/code/bt/stack/bnep/bnep_int.h b/rtkbt/code/bt/stack/bnep/bnep_int.h
new file mode 100755
index 0000000..126be04
--- /dev/null
+++ b/rtkbt/code/bt/stack/bnep/bnep_int.h
@@ -0,0 +1,249 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2001-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains internally used BNEP definitions
+ *
+ ******************************************************************************/
+
+#ifndef  BNEP_INT_H
+#define  BNEP_INT_H
+
+#include "bt_target.h"
+#include "bt_common.h"
+#include "bnep_api.h"
+#include "btm_int.h"
+#include "btu.h"
+
+
+/* BNEP frame types
+*/
+#define BNEP_FRAME_GENERAL_ETHERNET                 0x00
+#define BNEP_FRAME_CONTROL                          0x01
+#define BNEP_FRAME_COMPRESSED_ETHERNET              0x02
+#define BNEP_FRAME_COMPRESSED_ETHERNET_SRC_ONLY     0x03
+#define BNEP_FRAME_COMPRESSED_ETHERNET_DEST_ONLY    0x04
+
+
+/* BNEP filter control message types
+*/
+#define BNEP_CONTROL_COMMAND_NOT_UNDERSTOOD         0x00
+#define BNEP_SETUP_CONNECTION_REQUEST_MSG           0x01
+#define BNEP_SETUP_CONNECTION_RESPONSE_MSG          0x02
+#define BNEP_FILTER_NET_TYPE_SET_MSG                0x03
+#define BNEP_FILTER_NET_TYPE_RESPONSE_MSG           0x04
+#define BNEP_FILTER_MULTI_ADDR_SET_MSG              0x05
+#define BNEP_FILTER_MULTI_ADDR_RESPONSE_MSG         0x06
+
+
+/* BNEP header extension types
+*/
+#define BNEP_EXTENSION_FILTER_CONTROL   0x00
+
+
+/* BNEP Setup Connection response codes
+*/
+#define BNEP_SETUP_CONN_OK              0x0000
+#define BNEP_SETUP_INVALID_DEST_UUID    0x0001
+#define BNEP_SETUP_INVALID_SRC_UUID     0x0002
+#define BNEP_SETUP_INVALID_UUID_SIZE    0x0003
+#define BNEP_SETUP_CONN_NOT_ALLOWED     0x0004
+
+
+/* BNEP filter control response codes
+*/
+#define BNEP_FILTER_CRL_OK              0x0000
+#define BNEP_FILTER_CRL_UNSUPPORTED     0x0001
+#define BNEP_FILTER_CRL_BAD_RANGE       0x0002
+#define BNEP_FILTER_CRL_MAX_REACHED     0x0003
+#define BNEP_FILTER_CRL_SECURITY_ERR    0x0004
+
+
+/* 802.1p protocol packet will have actual protocol field in side the payload */
+#define BNEP_802_1_P_PROTOCOL           0x8100
+
+/* Timeout definitions.
+*/
+#define BNEP_CONN_TIMEOUT_MS        (20 * 1000)      /* Connection related timeout */
+#define BNEP_HOST_TIMEOUT_MS        (200 * 1000)     /* host responce timeout */
+#define BNEP_FILTER_SET_TIMEOUT_MS  (10 * 1000)
+
+/* Define the Out-Flow default values. */
+#define  BNEP_OFLOW_QOS_FLAG                 0
+#define  BNEP_OFLOW_SERV_TYPE                0
+#define  BNEP_OFLOW_TOKEN_RATE               0
+#define  BNEP_OFLOW_TOKEN_BUCKET_SIZE        0
+#define  BNEP_OFLOW_PEAK_BANDWIDTH           0
+#define  BNEP_OFLOW_LATENCY                  0
+#define  BNEP_OFLOW_DELAY_VARIATION          0
+
+/* Define the In-Flow default values. */
+#define  BNEP_IFLOW_QOS_FLAG                 0
+#define  BNEP_IFLOW_SERV_TYPE                0
+#define  BNEP_IFLOW_TOKEN_RATE               0
+#define  BNEP_IFLOW_TOKEN_BUCKET_SIZE        0
+#define  BNEP_IFLOW_PEAK_BANDWIDTH           0
+#define  BNEP_IFLOW_LATENCY                  0
+#define  BNEP_IFLOW_DELAY_VARIATION          0
+
+#define BNEP_FLUSH_TO                       0xFFFF
+
+#define BNEP_MAX_RETRANSMITS                 3
+
+/* Define the BNEP Connection Control Block
+*/
+typedef struct
+{
+#define BNEP_STATE_IDLE              0
+#define BNEP_STATE_CONN_START        1
+#define BNEP_STATE_CFG_SETUP         2
+#define BNEP_STATE_CONN_SETUP        3
+#define BNEP_STATE_SEC_CHECKING      4
+#define BNEP_STATE_SETUP_RCVD        5
+#define BNEP_STATE_CONNECTED         6
+    UINT8             con_state;
+
+#define BNEP_FLAGS_IS_ORIG           0x01
+#define BNEP_FLAGS_HIS_CFG_DONE      0x02
+#define BNEP_FLAGS_MY_CFG_DONE       0x04
+#define BNEP_FLAGS_L2CAP_CONGESTED   0x08
+#define BNEP_FLAGS_FILTER_RESP_PEND  0x10
+#define BNEP_FLAGS_MULTI_RESP_PEND   0x20
+#define BNEP_FLAGS_SETUP_RCVD        0x40
+#define BNEP_FLAGS_CONN_COMPLETED    0x80
+    UINT8             con_flags;
+    BT_HDR            *p_pending_data;
+
+    UINT16            l2cap_cid;
+    BD_ADDR           rem_bda;
+    UINT16            rem_mtu_size;
+    alarm_t           *conn_timer;
+    fixed_queue_t     *xmit_q;
+
+    UINT16            sent_num_filters;
+    UINT16            sent_prot_filter_start[BNEP_MAX_PROT_FILTERS];
+    UINT16            sent_prot_filter_end[BNEP_MAX_PROT_FILTERS];
+
+    UINT16            sent_mcast_filters;
+    BD_ADDR           sent_mcast_filter_start[BNEP_MAX_MULTI_FILTERS];
+    BD_ADDR           sent_mcast_filter_end[BNEP_MAX_MULTI_FILTERS];
+
+    UINT16            rcvd_num_filters;
+    UINT16            rcvd_prot_filter_start[BNEP_MAX_PROT_FILTERS];
+    UINT16            rcvd_prot_filter_end[BNEP_MAX_PROT_FILTERS];
+
+    UINT16            rcvd_mcast_filters;
+    BD_ADDR           rcvd_mcast_filter_start[BNEP_MAX_MULTI_FILTERS];
+    BD_ADDR           rcvd_mcast_filter_end[BNEP_MAX_MULTI_FILTERS];
+
+    UINT16            bad_pkts_rcvd;
+    UINT8             re_transmits;
+    UINT16            handle;
+    tBT_UUID          prv_src_uuid;
+    tBT_UUID          prv_dst_uuid;
+    tBT_UUID          src_uuid;
+    tBT_UUID          dst_uuid;
+
+} tBNEP_CONN;
+
+
+/*  The main BNEP control block
+*/
+typedef struct
+{
+    tL2CAP_CFG_INFO         l2cap_my_cfg;                   /* My L2CAP config     */
+    tBNEP_CONN              bcb[BNEP_MAX_CONNECTIONS];
+
+    tBNEP_CONNECT_IND_CB    *p_conn_ind_cb;
+    tBNEP_CONN_STATE_CB     *p_conn_state_cb;
+    tBNEP_DATA_IND_CB       *p_data_ind_cb;
+    tBNEP_DATA_BUF_CB       *p_data_buf_cb;
+    tBNEP_FILTER_IND_CB     *p_filter_ind_cb;
+    tBNEP_MFILTER_IND_CB    *p_mfilter_ind_cb;
+    tBNEP_TX_DATA_FLOW_CB   *p_tx_data_flow_cb;
+
+    tL2CAP_APPL_INFO        reg_info;
+
+    BOOLEAN                 profile_registered;             /* TRUE when we got our BD addr */
+    UINT8                   trace_level;
+
+} tBNEP_CB;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Global BNEP data
+*/
+#if BNEP_DYNAMIC_MEMORY == FALSE
+extern tBNEP_CB  bnep_cb;
+#else
+extern tBNEP_CB  *bnep_cb_ptr;
+#define bnep_cb (*bnep_cb_ptr)
+#endif
+
+/* Functions provided by bnep_main.c
+*/
+extern tBNEP_RESULT bnep_register_with_l2cap (void);
+extern void        bnep_disconnect (tBNEP_CONN *p_bcb, UINT16 reason);
+extern tBNEP_CONN *bnep_conn_originate (UINT8 *p_bd_addr);
+extern void        bnep_conn_timer_timeout(void *data);
+extern void        bnep_connected (tBNEP_CONN *p_bcb);
+
+
+/* Functions provided by bnep_utils.c
+*/
+extern tBNEP_CONN *bnepu_find_bcb_by_cid (UINT16 cid);
+extern tBNEP_CONN *bnepu_find_bcb_by_bd_addr (UINT8 *p_bda);
+extern tBNEP_CONN *bnepu_allocate_bcb (BD_ADDR p_rem_bda);
+extern void        bnepu_release_bcb (tBNEP_CONN *p_bcb);
+extern void        bnepu_send_peer_our_filters (tBNEP_CONN *p_bcb);
+extern void        bnepu_send_peer_our_multi_filters (tBNEP_CONN *p_bcb);
+extern BOOLEAN     bnepu_does_dest_support_prot (tBNEP_CONN *p_bcb, UINT16 protocol);
+extern void        bnepu_build_bnep_hdr (tBNEP_CONN *p_bcb, BT_HDR *p_buf, UINT16 protocol,
+                                         UINT8 *p_src_addr, UINT8 *p_dest_addr, BOOLEAN ext_bit);
+extern void        test_bnepu_build_bnep_hdr (tBNEP_CONN *p_bcb, BT_HDR *p_buf, UINT16 protocol,
+                                         UINT8 *p_src_addr, UINT8 *p_dest_addr, UINT8 type);
+
+extern tBNEP_CONN *bnepu_get_route_to_dest (UINT8 *p_bda);
+extern void        bnepu_check_send_packet (tBNEP_CONN *p_bcb, BT_HDR *p_buf);
+extern void        bnep_send_command_not_understood (tBNEP_CONN *p_bcb, UINT8 cmd_code);
+extern void        bnepu_process_peer_filter_set (tBNEP_CONN *p_bcb, UINT8 *p_filters, UINT16 len);
+extern void        bnepu_process_peer_filter_rsp (tBNEP_CONN *p_bcb, UINT8 *p_data);
+extern void        bnepu_process_multicast_filter_rsp (tBNEP_CONN *p_bcb, UINT8 *p_data);
+extern void        bnep_send_conn_req (tBNEP_CONN *p_bcb);
+extern void        bnep_send_conn_responce (tBNEP_CONN *p_bcb, UINT16 resp_code);
+extern void        bnep_process_setup_conn_req (tBNEP_CONN *p_bcb, UINT8 *p_setup, UINT8 len);
+extern void        bnep_process_setup_conn_responce (tBNEP_CONN *p_bcb, UINT8 *p_setup);
+extern UINT8       *bnep_process_control_packet (tBNEP_CONN *p_bcb, UINT8 *p, UINT16 *len,
+                                                        BOOLEAN is_ext);
+extern void        bnep_sec_check_complete (BD_ADDR bd_addr, tBT_TRANSPORT trasnport,
+                                                    void *p_ref_data, UINT8 result);
+extern tBNEP_RESULT bnep_is_packet_allowed (tBNEP_CONN *p_bcb, BD_ADDR p_dest_addr, UINT16 protocol,
+                                                    BOOLEAN fw_ext_present, UINT8 *p_data);
+extern UINT32      bnep_get_uuid32 (tBT_UUID *src_uuid);
+
+
+
+#ifdef __cplusplus
+}
+#endif
+
+
+#endif
diff --git a/rtkbt/code/bt/stack/bnep/bnep_main.c b/rtkbt/code/bt/stack/bnep/bnep_main.c
new file mode 100755
index 0000000..078a72e
--- /dev/null
+++ b/rtkbt/code/bt/stack/bnep/bnep_main.c
@@ -0,0 +1,806 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2001-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  this file contains the main BNEP functions
+ *
+ ******************************************************************************/
+
+#include "bt_target.h"
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+
+#include "bt_common.h"
+#include "bt_types.h"
+#include "l2cdefs.h"
+#include "hcidefs.h"
+#include "hcimsgs.h"
+
+#include "l2c_api.h"
+#include "l2cdefs.h"
+
+#include "btu.h"
+#include "btm_api.h"
+
+#include "bnep_api.h"
+#include "bnep_int.h"
+#include "bt_utils.h"
+
+#include "device/include/controller.h"
+
+
+extern fixed_queue_t *btu_general_alarm_queue;
+
+/********************************************************************************/
+/*                       G L O B A L    B N E P       D A T A                   */
+/********************************************************************************/
+#if BNEP_DYNAMIC_MEMORY == FALSE
+tBNEP_CB   bnep_cb;
+#endif
+
+const UINT16 bnep_frame_hdr_sizes[] = {14, 1, 2, 8, 8};
+
+/********************************************************************************/
+/*              L O C A L    F U N C T I O N     P R O T O T Y P E S            */
+/********************************************************************************/
+static void bnep_connect_ind (BD_ADDR  bd_addr, UINT16 l2cap_cid, UINT16 psm, UINT8 l2cap_id);
+static void bnep_connect_cfm (UINT16 l2cap_cid, UINT16 result);
+static void bnep_config_ind (UINT16 l2cap_cid, tL2CAP_CFG_INFO *p_cfg);
+static void bnep_config_cfm (UINT16 l2cap_cid, tL2CAP_CFG_INFO *p_cfg);
+static void bnep_disconnect_ind (UINT16 l2cap_cid, BOOLEAN ack_needed);
+static void bnep_disconnect_cfm (UINT16 l2cap_cid, UINT16 result);
+static void bnep_data_ind (UINT16 l2cap_cid, BT_HDR *p_msg);
+static void bnep_congestion_ind (UINT16 lcid, BOOLEAN is_congested);
+
+
+/*******************************************************************************
+**
+** Function         bnep_register_with_l2cap
+**
+** Description      This function registers BNEP PSM with L2CAP
+**
+** Returns          void
+**
+*******************************************************************************/
+tBNEP_RESULT bnep_register_with_l2cap (void)
+{
+    /* Initialize the L2CAP configuration. We only care about MTU and flush */
+    memset(&bnep_cb.l2cap_my_cfg, 0, sizeof(tL2CAP_CFG_INFO));
+
+    bnep_cb.l2cap_my_cfg.mtu_present            = TRUE;
+    bnep_cb.l2cap_my_cfg.mtu                    = BNEP_MTU_SIZE;
+    bnep_cb.l2cap_my_cfg.flush_to_present       = TRUE;
+    bnep_cb.l2cap_my_cfg.flush_to               = BNEP_FLUSH_TO;
+
+    bnep_cb.reg_info.pL2CA_ConnectInd_Cb        = bnep_connect_ind;
+    bnep_cb.reg_info.pL2CA_ConnectCfm_Cb        = bnep_connect_cfm;
+    bnep_cb.reg_info.pL2CA_ConfigInd_Cb         = bnep_config_ind;
+    bnep_cb.reg_info.pL2CA_ConfigCfm_Cb         = bnep_config_cfm;
+    bnep_cb.reg_info.pL2CA_DisconnectInd_Cb     = bnep_disconnect_ind;
+    bnep_cb.reg_info.pL2CA_DisconnectCfm_Cb     = bnep_disconnect_cfm;
+    bnep_cb.reg_info.pL2CA_DataInd_Cb           = bnep_data_ind;
+    bnep_cb.reg_info.pL2CA_CongestionStatus_Cb  = bnep_congestion_ind;
+
+    /* Now, register with L2CAP */
+    if (!L2CA_Register (BT_PSM_BNEP, &bnep_cb.reg_info))
+    {
+        BNEP_TRACE_ERROR ("BNEP - Registration failed");
+        return BNEP_SECURITY_FAIL;
+    }
+
+    return BNEP_SUCCESS;
+}
+
+
+/*******************************************************************************
+**
+** Function         bnep_connect_ind
+**
+** Description      This function handles an inbound connection indication
+**                  from L2CAP. This is the case where we are acting as a
+**                  server.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bnep_connect_ind (BD_ADDR  bd_addr, UINT16 l2cap_cid, UINT16 psm, UINT8 l2cap_id)
+{
+    tBNEP_CONN    *p_bcb = bnepu_find_bcb_by_bd_addr (bd_addr);
+    UNUSED(psm);
+
+    /* If we are not acting as server, or already have a connection, or have */
+    /* no more resources to handle the connection, reject the connection.    */
+    if (!(bnep_cb.profile_registered) || (p_bcb)
+     || ((p_bcb = bnepu_allocate_bcb(bd_addr)) == NULL))
+    {
+        L2CA_ConnectRsp (bd_addr, l2cap_id, l2cap_cid, L2CAP_CONN_NO_PSM, 0);
+        return;
+    }
+
+    /* Transition to the next appropriate state, waiting for config setup. */
+    p_bcb->con_state = BNEP_STATE_CFG_SETUP;
+
+    /* Save the L2CAP Channel ID. */
+    p_bcb->l2cap_cid = l2cap_cid;
+
+    /* Send response to the L2CAP layer. */
+    L2CA_ConnectRsp (bd_addr, l2cap_id, l2cap_cid, L2CAP_CONN_OK, L2CAP_CONN_OK);
+
+    /* Send a Configuration Request. */
+    L2CA_ConfigReq (l2cap_cid, &bnep_cb.l2cap_my_cfg);
+
+    /* Start timer waiting for config setup */
+    alarm_set_on_queue(p_bcb->conn_timer, BNEP_CONN_TIMEOUT_MS,
+                       bnep_conn_timer_timeout, p_bcb,
+                       btu_general_alarm_queue);
+
+    BNEP_TRACE_EVENT("BNEP - Rcvd L2CAP conn ind, CID: 0x%x", p_bcb->l2cap_cid);
+
+}
+
+
+/*******************************************************************************
+**
+** Function         bnep_connect_cfm
+**
+** Description      This function handles the connect confirm events
+**                  from L2CAP. This is the case when we are acting as a
+**                  client and have sent a connect request.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bnep_connect_cfm (UINT16 l2cap_cid, UINT16 result)
+{
+    tBNEP_CONN    *p_bcb;
+
+    /* Find CCB based on CID */
+    if ((p_bcb = bnepu_find_bcb_by_cid (l2cap_cid)) == NULL)
+    {
+        BNEP_TRACE_WARNING ("BNEP - Rcvd conn cnf for unknown CID 0x%x", l2cap_cid);
+        return;
+    }
+
+    /* If the connection response contains success status, then */
+    /* Transition to the next state and startup the timer.      */
+    if ((result == L2CAP_CONN_OK) && (p_bcb->con_state == BNEP_STATE_CONN_START))
+    {
+        p_bcb->con_state = BNEP_STATE_CFG_SETUP;
+
+        /* Send a Configuration Request. */
+        L2CA_ConfigReq (l2cap_cid, &bnep_cb.l2cap_my_cfg);
+
+        /* Start timer waiting for config results */
+        alarm_set_on_queue(p_bcb->conn_timer, BNEP_CONN_TIMEOUT_MS,
+                           bnep_conn_timer_timeout, p_bcb,
+                           btu_general_alarm_queue);
+
+        BNEP_TRACE_EVENT ("BNEP - got conn cnf, sent cfg req, CID: 0x%x", p_bcb->l2cap_cid);
+    }
+    else
+    {
+        BNEP_TRACE_WARNING ("BNEP - Rcvd conn cnf with error: 0x%x  CID 0x%x", result, p_bcb->l2cap_cid);
+
+        /* Tell the upper layer, if he has a callback */
+        if (bnep_cb.p_conn_state_cb &&
+            p_bcb->con_flags & BNEP_FLAGS_IS_ORIG)
+        {
+            (*bnep_cb.p_conn_state_cb) (p_bcb->handle, p_bcb->rem_bda, BNEP_CONN_FAILED, FALSE);
+        }
+
+        bnepu_release_bcb (p_bcb);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bnep_config_ind
+**
+** Description      This function processes the L2CAP configuration indication
+**                  event.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bnep_config_ind (UINT16 l2cap_cid, tL2CAP_CFG_INFO *p_cfg)
+{
+    tBNEP_CONN    *p_bcb;
+    UINT16        result, mtu = 0;
+
+    /* Find CCB based on CID */
+    if ((p_bcb = bnepu_find_bcb_by_cid (l2cap_cid)) == NULL)
+    {
+        BNEP_TRACE_WARNING ("BNEP - Rcvd L2CAP cfg ind, unknown CID: 0x%x", l2cap_cid);
+        return;
+    }
+
+    BNEP_TRACE_EVENT ("BNEP - Rcvd cfg ind, CID: 0x%x", l2cap_cid);
+
+    /* Remember the remote MTU size */
+    if ((!p_cfg->mtu_present) || (p_cfg->mtu < BNEP_MIN_MTU_SIZE))
+    {
+        mtu                     = p_cfg->mtu;
+        p_cfg->flush_to_present = FALSE;
+        p_cfg->mtu_present      = TRUE;
+        p_cfg->mtu              = BNEP_MIN_MTU_SIZE;
+        p_cfg->result           = result = L2CAP_CFG_UNACCEPTABLE_PARAMS;
+    }
+    else
+    {
+        if (p_cfg->mtu > BNEP_MTU_SIZE)
+            p_bcb->rem_mtu_size = BNEP_MTU_SIZE;
+        else
+            p_bcb->rem_mtu_size = p_cfg->mtu;
+
+        /* For now, always accept configuration from the other side */
+        p_cfg->flush_to_present = FALSE;
+        p_cfg->mtu_present      = FALSE;
+        p_cfg->result           = result = L2CAP_CFG_OK;
+    }
+
+    L2CA_ConfigRsp (l2cap_cid, p_cfg);
+
+    if (result != L2CAP_CFG_OK)
+    {
+        BNEP_TRACE_EVENT ("BNEP - Rcvd cfg ind with bad MTU %d, CID: 0x%x", mtu, l2cap_cid);
+        return;
+    }
+
+    p_bcb->con_flags |= BNEP_FLAGS_HIS_CFG_DONE;
+
+    if (p_bcb->con_flags & BNEP_FLAGS_MY_CFG_DONE)
+    {
+        p_bcb->con_state = BNEP_STATE_SEC_CHECKING;
+
+        /* Start timer waiting for setup or response */
+        alarm_set_on_queue(p_bcb->conn_timer, BNEP_HOST_TIMEOUT_MS,
+                           bnep_conn_timer_timeout, p_bcb,
+                           btu_general_alarm_queue);
+
+        if (p_bcb->con_flags & BNEP_FLAGS_IS_ORIG)
+        {
+            btm_sec_mx_access_request (p_bcb->rem_bda, BT_PSM_BNEP, TRUE,
+                                       BTM_SEC_PROTO_BNEP,
+                                       bnep_get_uuid32(&(p_bcb->src_uuid)),
+                                       &bnep_sec_check_complete, p_bcb);
+        }
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         bnep_config_cfm
+**
+** Description      This function processes the L2CAP configuration confirmation
+**                  event.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bnep_config_cfm (UINT16 l2cap_cid, tL2CAP_CFG_INFO *p_cfg)
+{
+    tBNEP_CONN    *p_bcb;
+
+    BNEP_TRACE_EVENT ("BNEP - Rcvd cfg cfm, CID: 0x%x  Result: %d", l2cap_cid, p_cfg->result);
+
+    /* Find CCB based on CID */
+    if ((p_bcb = bnepu_find_bcb_by_cid (l2cap_cid)) == NULL)
+    {
+        BNEP_TRACE_WARNING ("BNEP - Rcvd L2CAP cfg ind, unknown CID: 0x%x", l2cap_cid);
+        return;
+    }
+
+    /* For now, always accept configuration from the other side */
+    if (p_cfg->result == L2CAP_CFG_OK)
+    {
+        p_bcb->con_flags |= BNEP_FLAGS_MY_CFG_DONE;
+
+        if (p_bcb->con_flags & BNEP_FLAGS_HIS_CFG_DONE)
+        {
+            p_bcb->con_state = BNEP_STATE_SEC_CHECKING;
+
+            /* Start timer waiting for setup or response */
+            alarm_set_on_queue(p_bcb->conn_timer, BNEP_HOST_TIMEOUT_MS,
+                               bnep_conn_timer_timeout, p_bcb,
+                               btu_general_alarm_queue);
+
+            if (p_bcb->con_flags & BNEP_FLAGS_IS_ORIG)
+            {
+                btm_sec_mx_access_request (p_bcb->rem_bda, BT_PSM_BNEP, TRUE,
+                                           BTM_SEC_PROTO_BNEP,
+                                           bnep_get_uuid32(&(p_bcb->src_uuid)),
+                                           &bnep_sec_check_complete, p_bcb);
+            }
+        }
+    }
+    else
+    {
+        /* Tell the upper layer, if he has a callback */
+        if ((p_bcb->con_flags & BNEP_FLAGS_IS_ORIG) && (bnep_cb.p_conn_state_cb))
+        {
+            (*bnep_cb.p_conn_state_cb) (p_bcb->handle, p_bcb->rem_bda, BNEP_CONN_FAILED_CFG, FALSE);
+        }
+
+        L2CA_DisconnectReq (p_bcb->l2cap_cid);
+
+        bnepu_release_bcb (p_bcb);
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         bnep_disconnect_ind
+**
+** Description      This function handles a disconnect event from L2CAP. If
+**                  requested to, we ack the disconnect before dropping the CCB
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bnep_disconnect_ind (UINT16 l2cap_cid, BOOLEAN ack_needed)
+{
+    tBNEP_CONN    *p_bcb;
+
+    if (ack_needed)
+        L2CA_DisconnectRsp (l2cap_cid);
+
+    /* Find CCB based on CID */
+    if ((p_bcb = bnepu_find_bcb_by_cid (l2cap_cid)) == NULL)
+    {
+        BNEP_TRACE_WARNING ("BNEP - Rcvd L2CAP disc, unknown CID: 0x%x", l2cap_cid);
+        return;
+    }
+
+    BNEP_TRACE_EVENT ("BNEP - Rcvd L2CAP disc, CID: 0x%x", l2cap_cid);
+
+    /* Tell the user if he has a callback */
+    if (p_bcb->con_state == BNEP_STATE_CONNECTED)
+    {
+        if (bnep_cb.p_conn_state_cb)
+            (*bnep_cb.p_conn_state_cb)(p_bcb->handle, p_bcb->rem_bda, BNEP_CONN_DISCONNECTED, FALSE);
+    }
+    else
+    {
+        if ((bnep_cb.p_conn_state_cb) && ((p_bcb->con_flags & BNEP_FLAGS_IS_ORIG) ||
+            (p_bcb->con_flags & BNEP_FLAGS_CONN_COMPLETED)))
+            (*bnep_cb.p_conn_state_cb) (p_bcb->handle, p_bcb->rem_bda, BNEP_CONN_FAILED, FALSE);
+    }
+
+    bnepu_release_bcb (p_bcb);
+}
+
+
+
+/*******************************************************************************
+**
+** Function         bnep_disconnect_cfm
+**
+** Description      This function gets the disconnect confirm event from L2CAP
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bnep_disconnect_cfm (UINT16 l2cap_cid, UINT16 result)
+{
+    BNEP_TRACE_EVENT ("BNEP - Rcvd L2CAP disc cfm, CID: 0x%x, Result 0x%x", l2cap_cid, result);
+}
+
+
+
+/*******************************************************************************
+**
+** Function         bnep_congestion_ind
+**
+** Description      This is a callback function called by L2CAP when
+**                  congestion status changes
+**
+*******************************************************************************/
+static void bnep_congestion_ind (UINT16 l2cap_cid, BOOLEAN is_congested)
+{
+    tBNEP_CONN    *p_bcb;
+
+    /* Find BCB based on CID */
+    if ((p_bcb = bnepu_find_bcb_by_cid (l2cap_cid)) == NULL)
+    {
+        BNEP_TRACE_WARNING ("BNEP - Rcvd L2CAP cong, unknown CID: 0x%x", l2cap_cid);
+        return;
+    }
+
+    if (is_congested)
+   {
+        p_bcb->con_flags |= BNEP_FLAGS_L2CAP_CONGESTED;
+       if(bnep_cb.p_tx_data_flow_cb)
+       {
+           bnep_cb.p_tx_data_flow_cb(p_bcb->handle, BNEP_TX_FLOW_OFF);
+       }
+   }
+    else
+    {
+        p_bcb->con_flags &= ~BNEP_FLAGS_L2CAP_CONGESTED;
+
+       if(bnep_cb.p_tx_data_flow_cb)
+       {
+           bnep_cb.p_tx_data_flow_cb(p_bcb->handle, BNEP_TX_FLOW_ON);
+       }
+
+        /* While not congested, send as many buffers as we can */
+        while (!(p_bcb->con_flags & BNEP_FLAGS_L2CAP_CONGESTED))
+        {
+            BT_HDR *p_buf = (BT_HDR *)fixed_queue_try_dequeue(p_bcb->xmit_q);
+
+            if (!p_buf)
+                break;
+
+            L2CA_DataWrite (l2cap_cid, p_buf);
+        }
+    }
+}
+
+
+
+/*******************************************************************************
+**
+** Function         bnep_data_ind
+**
+** Description      This function is called when data is received from L2CAP.
+**                  if we are the originator of the connection, we are the SDP
+**                  client, and the received message is queued up for the client.
+**
+**                  If we are the destination of the connection, we are the SDP
+**                  server, so the message is passed to the server processing
+**                  function.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bnep_data_ind (UINT16 l2cap_cid, BT_HDR *p_buf)
+{
+    tBNEP_CONN    *p_bcb;
+    UINT8         *p = (UINT8 *)(p_buf + 1) + p_buf->offset;
+    UINT16        rem_len = p_buf->len;
+    UINT8         type, ctrl_type, ext_type = 0;
+    BOOLEAN       extension_present, fw_ext_present;
+    UINT16        protocol = 0;
+    UINT8         *p_src_addr, *p_dst_addr;
+
+
+    /* Find CCB based on CID */
+    if ((p_bcb = bnepu_find_bcb_by_cid (l2cap_cid)) == NULL)
+    {
+        BNEP_TRACE_WARNING ("BNEP - Rcvd L2CAP data, unknown CID: 0x%x", l2cap_cid);
+        osi_free(p_buf);
+        return;
+    }
+
+    /* Get the type and extension bits */
+    type = *p++;
+    extension_present = type >> 7;
+    type &= 0x7f;
+    if ((rem_len <= bnep_frame_hdr_sizes[type]) || (rem_len > BNEP_MTU_SIZE))
+    {
+        BNEP_TRACE_EVENT ("BNEP - rcvd frame, bad len: %d  type: 0x%02x", p_buf->len, type);
+        osi_free(p_buf);
+        return;
+    }
+
+    rem_len--;
+
+    if ((p_bcb->con_state != BNEP_STATE_CONNECTED) &&
+        (!(p_bcb->con_flags & BNEP_FLAGS_CONN_COMPLETED)) &&
+        (type != BNEP_FRAME_CONTROL))
+    {
+        BNEP_TRACE_WARNING ("BNEP - Ignored L2CAP data while in state: %d, CID: 0x%x",
+                            p_bcb->con_state, l2cap_cid);
+
+        if (extension_present)
+        {
+            /*
+            ** When there is no connection if a data packet is received
+            ** with unknown control extension headers then those should be processed
+            ** according to complain/ignore law
+            */
+            UINT8       ext, length;
+            UINT16      org_len, new_len;
+            /* parse the extension headers and process unknown control headers */
+            org_len = rem_len;
+            new_len = 0;
+            do {
+
+                ext     = *p++;
+                length  = *p++;
+                p += length;
+
+                if ((!(ext & 0x7F)) && (*p > BNEP_FILTER_MULTI_ADDR_RESPONSE_MSG))
+                    bnep_send_command_not_understood (p_bcb, *p);
+
+                new_len += (length + 2);
+
+                if (new_len > org_len)
+                    break;
+
+            } while (ext & 0x80);
+        }
+
+        osi_free(p_buf);
+        return;
+    }
+
+    if (type > BNEP_FRAME_COMPRESSED_ETHERNET_DEST_ONLY)
+    {
+        BNEP_TRACE_EVENT ("BNEP - rcvd frame, unknown type: 0x%02x", type);
+        osi_free(p_buf);
+        return;
+    }
+
+    BNEP_TRACE_DEBUG ("BNEP - rcv frame, type: %d len: %d Ext: %d", type, p_buf->len, extension_present);
+
+    /* Initialize addresses to 'not supplied' */
+    p_src_addr = p_dst_addr = NULL;
+
+    switch (type)
+    {
+    case BNEP_FRAME_GENERAL_ETHERNET:
+        p_dst_addr = p;
+        p += BD_ADDR_LEN;
+        p_src_addr = p;
+        p += BD_ADDR_LEN;
+        BE_STREAM_TO_UINT16 (protocol, p);
+        rem_len -= 14;
+        break;
+
+    case BNEP_FRAME_CONTROL:
+        ctrl_type = *p;
+        p = bnep_process_control_packet (p_bcb, p, &rem_len, FALSE);
+
+        if (ctrl_type == BNEP_SETUP_CONNECTION_REQUEST_MSG &&
+            p_bcb->con_state != BNEP_STATE_CONNECTED &&
+            extension_present && p && rem_len)
+        {
+            p_bcb->p_pending_data = (BT_HDR *)osi_malloc(rem_len);
+            memcpy((UINT8 *)(p_bcb->p_pending_data + 1), p, rem_len);
+            p_bcb->p_pending_data->len    = rem_len;
+            p_bcb->p_pending_data->offset = 0;
+        }
+        else
+        {
+            while (extension_present && p && rem_len)
+            {
+                ext_type = *p++;
+                extension_present = ext_type >> 7;
+                ext_type &= 0x7F;
+
+                /* if unknown extension present stop processing */
+                if (ext_type)
+                    break;
+
+                p = bnep_process_control_packet (p_bcb, p, &rem_len, TRUE);
+            }
+        }
+        osi_free(p_buf);
+        return;
+
+    case BNEP_FRAME_COMPRESSED_ETHERNET:
+        BE_STREAM_TO_UINT16 (protocol, p);
+        rem_len -= 2;
+        break;
+
+    case BNEP_FRAME_COMPRESSED_ETHERNET_SRC_ONLY:
+        p_src_addr = p;
+        p += BD_ADDR_LEN;
+        BE_STREAM_TO_UINT16 (protocol, p);
+        rem_len -= 8;
+        break;
+
+    case BNEP_FRAME_COMPRESSED_ETHERNET_DEST_ONLY:
+        p_dst_addr = p;
+        p += BD_ADDR_LEN;
+        BE_STREAM_TO_UINT16 (protocol, p);
+        rem_len -= 8;
+        break;
+    }
+
+    /* Process the header extension if there is one */
+    while (extension_present && p && rem_len)
+    {
+        ext_type = *p;
+        extension_present = ext_type >> 7;
+        ext_type &= 0x7F;
+
+        /* if unknown extension present stop processing */
+        if (ext_type)
+        {
+            BNEP_TRACE_EVENT ("Data extension type 0x%x found", ext_type);
+            break;
+        }
+
+        p++;
+        rem_len--;
+        p = bnep_process_control_packet (p_bcb, p, &rem_len, TRUE);
+    }
+
+    p_buf->offset += p_buf->len - rem_len;
+    p_buf->len     = rem_len;
+
+    /* Always give the upper layer MAC addresses */
+    if (!p_src_addr)
+        p_src_addr = (UINT8 *) p_bcb->rem_bda;
+
+    if (!p_dst_addr)
+        p_dst_addr = (UINT8 *) controller_get_interface()->get_address();
+
+    /* check whether there are any extensions to be forwarded */
+    if (ext_type)
+        fw_ext_present = TRUE;
+    else
+        fw_ext_present = FALSE;
+
+    if (bnep_cb.p_data_buf_cb)
+    {
+        (*bnep_cb.p_data_buf_cb)(p_bcb->handle, p_src_addr, p_dst_addr, protocol, p_buf, fw_ext_present);
+    }
+    else if (bnep_cb.p_data_ind_cb)
+    {
+        (*bnep_cb.p_data_ind_cb)(p_bcb->handle, p_src_addr, p_dst_addr, protocol, p, rem_len, fw_ext_present);
+        osi_free(p_buf);
+    }
+}
+
+
+
+/*******************************************************************************
+**
+** Function         bnep_conn_timer_timeout
+**
+** Description      This function processes a timeout. If it is a startup
+**                  timeout, we check for reading our BD address. If it
+**                  is an L2CAP timeout, we send a disconnect req to L2CAP.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bnep_conn_timer_timeout(void *data)
+{
+    tBNEP_CONN *p_bcb = (tBNEP_CONN *)data;
+
+    BNEP_TRACE_EVENT ("BNEP - CCB timeout in state: %d  CID: 0x%x flags %x, re_transmit %d",
+                       p_bcb->con_state, p_bcb->l2cap_cid, p_bcb->con_flags, p_bcb->re_transmits);
+
+    if (p_bcb->con_state == BNEP_STATE_CONN_SETUP)
+    {
+        BNEP_TRACE_EVENT ("BNEP - CCB timeout in state: %d  CID: 0x%x",
+                           p_bcb->con_state, p_bcb->l2cap_cid);
+
+        if (!(p_bcb->con_flags & BNEP_FLAGS_IS_ORIG))
+        {
+            L2CA_DisconnectReq (p_bcb->l2cap_cid);
+
+            bnepu_release_bcb (p_bcb);
+            return;
+        }
+
+        if (p_bcb->re_transmits++ != BNEP_MAX_RETRANSMITS)
+        {
+            bnep_send_conn_req (p_bcb);
+            alarm_set_on_queue(p_bcb->conn_timer, BNEP_CONN_TIMEOUT_MS,
+                               bnep_conn_timer_timeout, p_bcb,
+                               btu_general_alarm_queue);
+        }
+        else
+        {
+            L2CA_DisconnectReq (p_bcb->l2cap_cid);
+
+            if ((p_bcb->con_flags & BNEP_FLAGS_IS_ORIG) && (bnep_cb.p_conn_state_cb))
+                (*bnep_cb.p_conn_state_cb) (p_bcb->handle, p_bcb->rem_bda, BNEP_CONN_FAILED, FALSE);
+
+            bnepu_release_bcb (p_bcb);
+            return;
+        }
+    }
+    else if (p_bcb->con_state != BNEP_STATE_CONNECTED)
+    {
+        BNEP_TRACE_EVENT ("BNEP - CCB timeout in state: %d  CID: 0x%x",
+                           p_bcb->con_state, p_bcb->l2cap_cid);
+
+        L2CA_DisconnectReq (p_bcb->l2cap_cid);
+
+        /* Tell the user if he has a callback */
+        if ((p_bcb->con_flags & BNEP_FLAGS_IS_ORIG) && (bnep_cb.p_conn_state_cb))
+            (*bnep_cb.p_conn_state_cb) (p_bcb->handle, p_bcb->rem_bda, BNEP_CONN_FAILED, FALSE);
+
+        bnepu_release_bcb (p_bcb);
+    }
+    else if (p_bcb->con_flags & BNEP_FLAGS_FILTER_RESP_PEND)
+    {
+        if (p_bcb->re_transmits++ != BNEP_MAX_RETRANSMITS)
+        {
+            bnepu_send_peer_our_filters (p_bcb);
+            alarm_set_on_queue(p_bcb->conn_timer, BNEP_FILTER_SET_TIMEOUT_MS,
+                               bnep_conn_timer_timeout, p_bcb,
+                               btu_general_alarm_queue);
+        }
+        else
+        {
+            L2CA_DisconnectReq (p_bcb->l2cap_cid);
+
+            /* Tell the user if he has a callback */
+            if (bnep_cb.p_conn_state_cb)
+                (*bnep_cb.p_conn_state_cb) (p_bcb->handle, p_bcb->rem_bda, BNEP_SET_FILTER_FAIL, FALSE);
+
+            bnepu_release_bcb (p_bcb);
+            return;
+        }
+    }
+    else if (p_bcb->con_flags & BNEP_FLAGS_MULTI_RESP_PEND)
+    {
+        if (p_bcb->re_transmits++ != BNEP_MAX_RETRANSMITS)
+        {
+            bnepu_send_peer_our_multi_filters (p_bcb);
+            alarm_set_on_queue(p_bcb->conn_timer, BNEP_FILTER_SET_TIMEOUT_MS,
+                               bnep_conn_timer_timeout, p_bcb,
+                               btu_general_alarm_queue);
+        }
+        else
+        {
+            L2CA_DisconnectReq (p_bcb->l2cap_cid);
+
+            /* Tell the user if he has a callback */
+            if (bnep_cb.p_conn_state_cb)
+                (*bnep_cb.p_conn_state_cb) (p_bcb->handle, p_bcb->rem_bda, BNEP_SET_FILTER_FAIL, FALSE);
+
+            bnepu_release_bcb (p_bcb);
+            return;
+        }
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         bnep_connected
+**
+** Description      This function is called when a connection is established
+**                  (after config).
+**
+** Returns          void
+**
+*******************************************************************************/
+void bnep_connected (tBNEP_CONN *p_bcb)
+{
+    BOOLEAN     is_role_change;
+
+    if (p_bcb->con_flags & BNEP_FLAGS_CONN_COMPLETED)
+        is_role_change = TRUE;
+    else
+        is_role_change = FALSE;
+
+    p_bcb->con_state = BNEP_STATE_CONNECTED;
+    p_bcb->con_flags |= BNEP_FLAGS_CONN_COMPLETED;
+    p_bcb->con_flags &= (~BNEP_FLAGS_SETUP_RCVD);
+
+    /* Ensure timer is stopped */
+    alarm_cancel(p_bcb->conn_timer);
+    p_bcb->re_transmits = 0;
+
+    /* Tell the upper layer, if he has a callback */
+    if (bnep_cb.p_conn_state_cb)
+        (*bnep_cb.p_conn_state_cb) (p_bcb->handle, p_bcb->rem_bda, BNEP_SUCCESS, is_role_change);
+}
diff --git a/rtkbt/code/bt/stack/bnep/bnep_utils.c b/rtkbt/code/bt/stack/bnep/bnep_utils.c
new file mode 100755
index 0000000..13fb189
--- /dev/null
+++ b/rtkbt/code/bt/stack/bnep/bnep_utils.c
@@ -0,0 +1,1372 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2001-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains BNEP utility functions
+ *
+ ******************************************************************************/
+
+#include <stdio.h>
+#include <string.h>
+#include "bt_common.h"
+#include "bt_types.h"
+#include "bnep_int.h"
+#include "btu.h"
+#include "btm_int.h"
+#include "bt_utils.h"
+#include "device/include/controller.h"
+
+
+extern fixed_queue_t *btu_general_alarm_queue;
+
+/********************************************************************************/
+/*              L O C A L    F U N C T I O N     P R O T O T Y P E S            */
+/********************************************************************************/
+static UINT8 *bnepu_init_hdr (BT_HDR *p_buf, UINT16 hdr_len, UINT8 pkt_type);
+
+void bnepu_process_peer_multicast_filter_set (tBNEP_CONN *p_bcb, UINT8 *p_filters, UINT16 len);
+void bnepu_send_peer_multicast_filter_rsp (tBNEP_CONN *p_bcb, UINT16 response_code);
+
+
+/*******************************************************************************
+**
+** Function         bnepu_find_bcb_by_cid
+**
+** Description      This function searches the bcb table for an entry with the
+**                  passed CID.
+**
+** Returns          the BCB address, or NULL if not found.
+**
+*******************************************************************************/
+tBNEP_CONN *bnepu_find_bcb_by_cid (UINT16 cid)
+{
+    UINT16          xx;
+    tBNEP_CONN     *p_bcb;
+
+    /* Look through each connection control block */
+    for (xx = 0, p_bcb = bnep_cb.bcb; xx < BNEP_MAX_CONNECTIONS; xx++, p_bcb++)
+    {
+        if ((p_bcb->con_state != BNEP_STATE_IDLE) && (p_bcb->l2cap_cid == cid))
+            return (p_bcb);
+    }
+
+    /* If here, not found */
+    return (NULL);
+}
+
+
+/*******************************************************************************
+**
+** Function         bnepu_find_bcb_by_bd_addr
+**
+** Description      This function searches the BCB table for an entry with the
+**                  passed Bluetooth Address.
+**
+** Returns          the BCB address, or NULL if not found.
+**
+*******************************************************************************/
+tBNEP_CONN *bnepu_find_bcb_by_bd_addr (UINT8 *p_bda)
+{
+    UINT16          xx;
+    tBNEP_CONN     *p_bcb;
+
+    /* Look through each connection control block */
+    for (xx = 0, p_bcb = bnep_cb.bcb; xx < BNEP_MAX_CONNECTIONS; xx++, p_bcb++)
+    {
+        if (p_bcb->con_state != BNEP_STATE_IDLE)
+        {
+            if (!memcmp ((UINT8 *)(p_bcb->rem_bda), p_bda, BD_ADDR_LEN))
+                return (p_bcb);
+        }
+    }
+
+    /* If here, not found */
+    return (NULL);
+}
+
+
+/*******************************************************************************
+**
+** Function         bnepu_allocate_bcb
+**
+** Description      This function allocates a new BCB.
+**
+** Returns          BCB address, or NULL if none available.
+**
+*******************************************************************************/
+tBNEP_CONN *bnepu_allocate_bcb (BD_ADDR p_rem_bda)
+{
+    UINT16          xx;
+    tBNEP_CONN     *p_bcb;
+
+    /* Look through each connection control block for a free one */
+    for (xx = 0, p_bcb = bnep_cb.bcb; xx < BNEP_MAX_CONNECTIONS; xx++, p_bcb++)
+    {
+        if (p_bcb->con_state == BNEP_STATE_IDLE)
+        {
+            alarm_free(p_bcb->conn_timer);
+            memset ((UINT8 *)p_bcb, 0, sizeof (tBNEP_CONN));
+            p_bcb->conn_timer = alarm_new("bnep.conn_timer");
+
+            memcpy ((UINT8 *)(p_bcb->rem_bda), (UINT8 *)p_rem_bda, BD_ADDR_LEN);
+            p_bcb->handle = xx + 1;
+            p_bcb->xmit_q = fixed_queue_new(SIZE_MAX);
+
+            return (p_bcb);
+        }
+    }
+
+    /* If here, no free BCB found */
+    return (NULL);
+}
+
+
+/*******************************************************************************
+**
+** Function         bnepu_release_bcb
+**
+** Description      This function releases a BCB.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bnepu_release_bcb (tBNEP_CONN *p_bcb)
+{
+    /* Ensure timer is stopped */
+    alarm_free(p_bcb->conn_timer);
+    p_bcb->conn_timer = NULL;
+
+    /* Drop any response pointer we may be holding */
+    p_bcb->con_state        = BNEP_STATE_IDLE;
+    p_bcb->p_pending_data   = NULL;
+
+    /* Free transmit queue */
+    while (!fixed_queue_is_empty(p_bcb->xmit_q))
+    {
+        osi_free(fixed_queue_try_dequeue(p_bcb->xmit_q));
+    }
+    fixed_queue_free(p_bcb->xmit_q, NULL);
+    p_bcb->xmit_q = NULL;
+}
+
+
+/*******************************************************************************
+**
+** Function         bnep_send_conn_req
+**
+** Description      This function sends a BNEP connection request to peer
+**
+** Returns          void
+**
+*******************************************************************************/
+void bnep_send_conn_req (tBNEP_CONN *p_bcb)
+{
+    BT_HDR  *p_buf = (BT_HDR *)osi_malloc(BNEP_BUF_SIZE);
+    UINT8   *p, *p_start;
+
+    BNEP_TRACE_DEBUG ("%s: sending setup req with dst uuid %x",
+        __func__, p_bcb->dst_uuid.uu.uuid16);
+
+    p_buf->offset = L2CAP_MIN_OFFSET;
+    p = p_start = (UINT8 *)(p_buf + 1) + L2CAP_MIN_OFFSET;
+
+    /* Put in BNEP frame type - filter control */
+    UINT8_TO_BE_STREAM (p, BNEP_FRAME_CONTROL);
+
+    /* Put in filter message type - set filters */
+    UINT8_TO_BE_STREAM (p, BNEP_SETUP_CONNECTION_REQUEST_MSG);
+
+    UINT8_TO_BE_STREAM (p, p_bcb->dst_uuid.len);
+
+    if (p_bcb->dst_uuid.len == 2)
+    {
+        UINT16_TO_BE_STREAM (p, p_bcb->dst_uuid.uu.uuid16);
+        UINT16_TO_BE_STREAM (p, p_bcb->src_uuid.uu.uuid16);
+    }
+    else if (p_bcb->dst_uuid.len == 4)
+    {
+        UINT32_TO_BE_STREAM (p, p_bcb->dst_uuid.uu.uuid32);
+        UINT32_TO_BE_STREAM (p, p_bcb->src_uuid.uu.uuid32);
+    }
+    else if (p_bcb->dst_uuid.len == 16)
+    {
+        memcpy (p, p_bcb->dst_uuid.uu.uuid128, p_bcb->dst_uuid.len);
+        p += p_bcb->dst_uuid.len;
+        memcpy (p, p_bcb->src_uuid.uu.uuid128, p_bcb->dst_uuid.len);
+        p += p_bcb->dst_uuid.len;
+    }
+    else
+    {
+        BNEP_TRACE_ERROR ("%s: uuid: %x, invalid length: %x",
+            __func__, p_bcb->dst_uuid.uu.uuid16, p_bcb->dst_uuid.len);
+    }
+
+    p_buf->len = (UINT16)(p - p_start);
+
+    bnepu_check_send_packet (p_bcb, p_buf);
+}
+
+
+/*******************************************************************************
+**
+** Function         bnep_send_conn_responce
+**
+** Description      This function sends a BNEP setup response to peer
+**
+** Returns          void
+**
+*******************************************************************************/
+void bnep_send_conn_responce (tBNEP_CONN *p_bcb, UINT16 resp_code)
+{
+    BT_HDR  *p_buf = (BT_HDR *)osi_malloc(BNEP_BUF_SIZE);
+    UINT8   *p;
+
+    BNEP_TRACE_EVENT ("BNEP - bnep_send_conn_responce for CID: 0x%x", p_bcb->l2cap_cid);
+
+    p_buf->offset = L2CAP_MIN_OFFSET;
+    p = (UINT8 *)(p_buf + 1) + L2CAP_MIN_OFFSET;
+
+    /* Put in BNEP frame type - filter control */
+    UINT8_TO_BE_STREAM (p, BNEP_FRAME_CONTROL);
+
+    /* Put in filter message type - set filters */
+    UINT8_TO_BE_STREAM (p, BNEP_SETUP_CONNECTION_RESPONSE_MSG);
+
+    UINT16_TO_BE_STREAM (p, resp_code);
+
+    p_buf->len = 4;
+
+    bnepu_check_send_packet (p_bcb, p_buf);
+
+}
+
+
+/*******************************************************************************
+**
+** Function         bnepu_send_peer_our_filters
+**
+** Description      This function sends our filters to a peer
+**
+** Returns          void
+**
+*******************************************************************************/
+void bnepu_send_peer_our_filters (tBNEP_CONN *p_bcb)
+{
+    BT_HDR      *p_buf = (BT_HDR *)osi_malloc(BNEP_BUF_SIZE);
+    UINT8       *p;
+    UINT16      xx;
+
+    BNEP_TRACE_DEBUG ("BNEP sending peer our filters");
+
+    p_buf->offset = L2CAP_MIN_OFFSET;
+    p = (UINT8 *)(p_buf + 1) + L2CAP_MIN_OFFSET;
+
+    /* Put in BNEP frame type - filter control */
+    UINT8_TO_BE_STREAM (p, BNEP_FRAME_CONTROL);
+
+    /* Put in filter message type - set filters */
+    UINT8_TO_BE_STREAM (p, BNEP_FILTER_NET_TYPE_SET_MSG);
+
+    UINT16_TO_BE_STREAM (p, (4 * p_bcb->sent_num_filters));
+    for (xx = 0; xx < p_bcb->sent_num_filters; xx++)
+    {
+        UINT16_TO_BE_STREAM (p, p_bcb->sent_prot_filter_start[xx]);
+        UINT16_TO_BE_STREAM (p, p_bcb->sent_prot_filter_end[xx]);
+    }
+
+    p_buf->len = 4 + (4 * p_bcb->sent_num_filters);
+
+    bnepu_check_send_packet (p_bcb, p_buf);
+
+    p_bcb->con_flags |= BNEP_FLAGS_FILTER_RESP_PEND;
+
+    /* Start timer waiting for setup response */
+    alarm_set_on_queue(p_bcb->conn_timer, BNEP_FILTER_SET_TIMEOUT_MS,
+                       bnep_conn_timer_timeout, p_bcb,
+                       btu_general_alarm_queue);
+}
+
+
+/*******************************************************************************
+**
+** Function         bnepu_send_peer_our_multi_filters
+**
+** Description      This function sends our multicast filters to a peer
+**
+** Returns          void
+**
+*******************************************************************************/
+void bnepu_send_peer_our_multi_filters (tBNEP_CONN *p_bcb)
+{
+    BT_HDR      *p_buf = (BT_HDR *)osi_malloc(BNEP_BUF_SIZE);
+    UINT8       *p;
+    UINT16      xx;
+
+    BNEP_TRACE_DEBUG ("BNEP sending peer our multicast filters");
+
+    p_buf->offset = L2CAP_MIN_OFFSET;
+    p = (UINT8 *)(p_buf + 1) + L2CAP_MIN_OFFSET;
+
+    /* Put in BNEP frame type - filter control */
+    UINT8_TO_BE_STREAM (p, BNEP_FRAME_CONTROL);
+
+    /* Put in filter message type - set filters */
+    UINT8_TO_BE_STREAM (p, BNEP_FILTER_MULTI_ADDR_SET_MSG);
+
+    UINT16_TO_BE_STREAM (p, (2 * BD_ADDR_LEN * p_bcb->sent_mcast_filters));
+    for (xx = 0; xx < p_bcb->sent_mcast_filters; xx++)
+    {
+        memcpy (p, p_bcb->sent_mcast_filter_start[xx], BD_ADDR_LEN);
+        p += BD_ADDR_LEN;
+        memcpy (p, p_bcb->sent_mcast_filter_end[xx], BD_ADDR_LEN);
+        p += BD_ADDR_LEN;
+    }
+
+    p_buf->len = 4 + (2 * BD_ADDR_LEN * p_bcb->sent_mcast_filters);
+
+    bnepu_check_send_packet (p_bcb, p_buf);
+
+    p_bcb->con_flags |= BNEP_FLAGS_MULTI_RESP_PEND;
+
+    /* Start timer waiting for setup response */
+    alarm_set_on_queue(p_bcb->conn_timer, BNEP_FILTER_SET_TIMEOUT_MS,
+                       bnep_conn_timer_timeout, p_bcb,
+                       btu_general_alarm_queue);
+}
+
+
+/*******************************************************************************
+**
+** Function         bnepu_send_peer_filter_rsp
+**
+** Description      This function sends a filter response to a peer
+**
+** Returns          void
+**
+*******************************************************************************/
+void bnepu_send_peer_filter_rsp (tBNEP_CONN *p_bcb, UINT16 response_code)
+{
+    BT_HDR  *p_buf = (BT_HDR *)osi_malloc(BNEP_BUF_SIZE);
+    UINT8   *p;
+
+    BNEP_TRACE_DEBUG ("BNEP sending filter response");
+
+    p_buf->offset = L2CAP_MIN_OFFSET;
+    p = (UINT8 *)(p_buf + 1) + L2CAP_MIN_OFFSET;
+
+    /* Put in BNEP frame type - filter control */
+    UINT8_TO_BE_STREAM (p, BNEP_FRAME_CONTROL);
+
+    /* Put in filter message type - set filters */
+    UINT8_TO_BE_STREAM (p, BNEP_FILTER_NET_TYPE_RESPONSE_MSG);
+
+    UINT16_TO_BE_STREAM (p, response_code);
+
+    p_buf->len = 4;
+
+    bnepu_check_send_packet (p_bcb, p_buf);
+}
+
+
+/*******************************************************************************
+**
+** Function         bnep_send_command_not_understood
+**
+** Description      This function sends a BNEP command not understood message
+**
+** Returns          void
+**
+*******************************************************************************/
+void bnep_send_command_not_understood (tBNEP_CONN *p_bcb, UINT8 cmd_code)
+{
+    BT_HDR  *p_buf = (BT_HDR *)osi_malloc(BNEP_BUF_SIZE);
+    UINT8   *p;
+
+    BNEP_TRACE_EVENT ("BNEP - bnep_send_command_not_understood for CID: 0x%x, cmd 0x%x", p_bcb->l2cap_cid, cmd_code);
+
+    p_buf->offset = L2CAP_MIN_OFFSET;
+    p = (UINT8 *)(p_buf + 1) + L2CAP_MIN_OFFSET;
+
+    /* Put in BNEP frame type - filter control */
+    UINT8_TO_BE_STREAM (p, BNEP_FRAME_CONTROL);
+
+    /* Put in filter message type - set filters */
+    UINT8_TO_BE_STREAM (p, BNEP_CONTROL_COMMAND_NOT_UNDERSTOOD);
+
+    UINT8_TO_BE_STREAM (p, cmd_code);
+
+    p_buf->len = 3;
+
+    bnepu_check_send_packet (p_bcb, p_buf);
+
+}
+
+
+/*******************************************************************************
+**
+** Function         bnepu_check_send_packet
+**
+** Description      This function tries to send a packet to L2CAP.
+**                  If L2CAP is flow controlled, it enqueues the
+**                  packet to the transmit queue
+**
+** Returns          void
+**
+*******************************************************************************/
+void bnepu_check_send_packet (tBNEP_CONN *p_bcb, BT_HDR *p_buf)
+{
+    BNEP_TRACE_EVENT ("BNEP - bnepu_check_send_packet for CID: 0x%x", p_bcb->l2cap_cid);
+    if (p_bcb->con_flags & BNEP_FLAGS_L2CAP_CONGESTED)
+    {
+        if (fixed_queue_length(p_bcb->xmit_q) >= BNEP_MAX_XMITQ_DEPTH)
+        {
+            BNEP_TRACE_EVENT ("BNEP - congested, dropping buf, CID: 0x%x", p_bcb->l2cap_cid);
+
+            osi_free(p_buf);
+        }
+        else
+        {
+            fixed_queue_enqueue(p_bcb->xmit_q, p_buf);
+        }
+    }
+    else
+    {
+        L2CA_DataWrite (p_bcb->l2cap_cid, p_buf);
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         bnepu_build_bnep_hdr
+**
+** Description      This function builds the BNEP header for a packet
+**                  Extension headers are not sent yet, so there is no
+**                  check for that.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bnepu_build_bnep_hdr (tBNEP_CONN *p_bcb, BT_HDR *p_buf, UINT16 protocol,
+                           UINT8 *p_src_addr, UINT8 *p_dest_addr, BOOLEAN fw_ext_present)
+{
+    const controller_t *controller = controller_get_interface();
+    UINT8    ext_bit, *p = (UINT8 *)NULL;
+    UINT8    type = BNEP_FRAME_COMPRESSED_ETHERNET;
+
+    ext_bit = fw_ext_present ? 0x80 : 0x00;
+
+    if ((p_src_addr) && (memcmp (p_src_addr, &controller->get_address()->address, BD_ADDR_LEN)))
+        type = BNEP_FRAME_COMPRESSED_ETHERNET_SRC_ONLY;
+
+    if (memcmp (p_dest_addr, p_bcb->rem_bda, BD_ADDR_LEN))
+        type = (type == BNEP_FRAME_COMPRESSED_ETHERNET) ? BNEP_FRAME_COMPRESSED_ETHERNET_DEST_ONLY : BNEP_FRAME_GENERAL_ETHERNET;
+
+    if (!p_src_addr)
+        p_src_addr = (UINT8 *)controller->get_address();
+
+    switch (type)
+    {
+    case BNEP_FRAME_GENERAL_ETHERNET:
+        p = bnepu_init_hdr (p_buf, 15, (UINT8)(ext_bit | BNEP_FRAME_GENERAL_ETHERNET));
+
+        memcpy (p, p_dest_addr, BD_ADDR_LEN);
+        p += BD_ADDR_LEN;
+
+        memcpy (p, p_src_addr, BD_ADDR_LEN);
+        p += BD_ADDR_LEN;
+        break;
+
+    case BNEP_FRAME_COMPRESSED_ETHERNET:
+        p = bnepu_init_hdr (p_buf, 3, (UINT8)(ext_bit | BNEP_FRAME_COMPRESSED_ETHERNET));
+        break;
+
+    case BNEP_FRAME_COMPRESSED_ETHERNET_SRC_ONLY:
+        p = bnepu_init_hdr (p_buf, 9, (UINT8)(ext_bit | BNEP_FRAME_COMPRESSED_ETHERNET_SRC_ONLY));
+
+        memcpy (p, p_src_addr, BD_ADDR_LEN);
+        p += BD_ADDR_LEN;
+        break;
+
+    case BNEP_FRAME_COMPRESSED_ETHERNET_DEST_ONLY:
+        p = bnepu_init_hdr (p_buf, 9, (UINT8)(ext_bit | BNEP_FRAME_COMPRESSED_ETHERNET_DEST_ONLY));
+
+        memcpy (p, p_dest_addr, BD_ADDR_LEN);
+        p += BD_ADDR_LEN;
+        break;
+    }
+
+    UINT16_TO_BE_STREAM (p, protocol);
+}
+
+
+/*******************************************************************************
+**
+** Function         bnepu_init_hdr
+**
+** Description      This function initializes the BNEP header
+**
+** Returns          pointer to header in buffer
+**
+*******************************************************************************/
+static UINT8 *bnepu_init_hdr (BT_HDR *p_buf, UINT16 hdr_len, UINT8 pkt_type)
+{
+    UINT8    *p = (UINT8 *)(p_buf + 1) + p_buf->offset;
+
+    /* See if we need to make space in the buffer */
+    if (p_buf->offset < (hdr_len + L2CAP_MIN_OFFSET))
+    {
+        UINT16 xx, diff = BNEP_MINIMUM_OFFSET - p_buf->offset;
+        p = p + p_buf->len - 1;
+        for (xx = 0; xx < p_buf->len; xx++, p--)
+            p[diff] = *p;
+
+        p_buf->offset = BNEP_MINIMUM_OFFSET;
+        p = (UINT8 *)(p_buf + 1) + p_buf->offset;
+    }
+
+    p_buf->len    += hdr_len;
+    p_buf->offset -= hdr_len;
+    p             -= hdr_len;
+
+    *p++ = pkt_type;
+
+    return (p);
+}
+
+
+/*******************************************************************************
+**
+** Function         bnep_process_setup_conn_req
+**
+** Description      This function processes a peer's setup connection request
+**                  message. The destination UUID is verified and response sent
+**                  Connection open indication will be given to PAN profile
+**
+** Returns          void
+**
+*******************************************************************************/
+void bnep_process_setup_conn_req (tBNEP_CONN *p_bcb, UINT8 *p_setup, UINT8 len)
+{
+    BNEP_TRACE_EVENT ("BNEP - bnep_process_setup_conn_req for CID: 0x%x", p_bcb->l2cap_cid);
+
+    if (p_bcb->con_state != BNEP_STATE_CONN_SETUP &&
+        p_bcb->con_state != BNEP_STATE_SEC_CHECKING &&
+        p_bcb->con_state != BNEP_STATE_CONNECTED)
+    {
+        BNEP_TRACE_ERROR ("BNEP - setup request in bad state %d", p_bcb->con_state);
+        bnep_send_conn_responce (p_bcb, BNEP_SETUP_CONN_NOT_ALLOWED);
+        return;
+    }
+
+    /* Check if we already initiated security check or if waiting for user responce */
+    if (p_bcb->con_flags & BNEP_FLAGS_SETUP_RCVD)
+    {
+        BNEP_TRACE_EVENT ("BNEP - Duplicate Setup message received while doing security check");
+        return;
+    }
+
+    /* Check if peer is the originator */
+    if (p_bcb->con_state != BNEP_STATE_CONNECTED &&
+        (!(p_bcb->con_flags & BNEP_FLAGS_SETUP_RCVD)) &&
+        (p_bcb->con_flags & BNEP_FLAGS_IS_ORIG))
+    {
+        BNEP_TRACE_ERROR ("BNEP - setup request when we are originator", p_bcb->con_state);
+        bnep_send_conn_responce (p_bcb, BNEP_SETUP_CONN_NOT_ALLOWED);
+        return;
+    }
+
+    if (p_bcb->con_state == BNEP_STATE_CONNECTED)
+    {
+        memcpy ((UINT8 *)&(p_bcb->prv_src_uuid), (UINT8 *)&(p_bcb->src_uuid), sizeof (tBT_UUID));
+        memcpy ((UINT8 *)&(p_bcb->prv_dst_uuid), (UINT8 *)&(p_bcb->dst_uuid), sizeof (tBT_UUID));
+    }
+
+    p_bcb->dst_uuid.len = p_bcb->src_uuid.len = len;
+
+    if (p_bcb->dst_uuid.len == 2)
+    {
+        /* because peer initiated connection keep src uuid as dst uuid */
+        BE_STREAM_TO_UINT16 (p_bcb->src_uuid.uu.uuid16, p_setup);
+        BE_STREAM_TO_UINT16 (p_bcb->dst_uuid.uu.uuid16, p_setup);
+
+        /* If nothing has changed don't bother the profile */
+        if (p_bcb->con_state == BNEP_STATE_CONNECTED &&
+            p_bcb->src_uuid.uu.uuid16 == p_bcb->prv_src_uuid.uu.uuid16 &&
+            p_bcb->dst_uuid.uu.uuid16 == p_bcb->prv_dst_uuid.uu.uuid16)
+        {
+            bnep_send_conn_responce (p_bcb, BNEP_SETUP_CONN_OK);
+            return;
+        }
+    }
+    else if (p_bcb->dst_uuid.len == 4)
+    {
+        BE_STREAM_TO_UINT32 (p_bcb->src_uuid.uu.uuid32, p_setup);
+        BE_STREAM_TO_UINT32 (p_bcb->dst_uuid.uu.uuid32, p_setup);
+    }
+    else if (p_bcb->dst_uuid.len == 16)
+    {
+        memcpy (p_bcb->src_uuid.uu.uuid128, p_setup, p_bcb->src_uuid.len);
+        p_setup += p_bcb->src_uuid.len;
+        memcpy (p_bcb->dst_uuid.uu.uuid128, p_setup, p_bcb->dst_uuid.len);
+        p_setup += p_bcb->dst_uuid.len;
+    }
+    else
+    {
+        BNEP_TRACE_ERROR ("BNEP - Bad UID len %d in ConnReq", p_bcb->dst_uuid.len);
+        bnep_send_conn_responce (p_bcb, BNEP_SETUP_INVALID_UUID_SIZE);
+        return;
+    }
+
+    p_bcb->con_state = BNEP_STATE_SEC_CHECKING;
+    p_bcb->con_flags |= BNEP_FLAGS_SETUP_RCVD;
+
+    BNEP_TRACE_EVENT ("BNEP initiating security check for incoming call for uuid 0x%x", p_bcb->src_uuid.uu.uuid16);
+#if (!defined (BNEP_DO_AUTH_FOR_ROLE_SWITCH) || BNEP_DO_AUTH_FOR_ROLE_SWITCH == FALSE)
+    if (p_bcb->con_flags & BNEP_FLAGS_CONN_COMPLETED)
+        bnep_sec_check_complete (p_bcb->rem_bda, p_bcb, BTM_SUCCESS);
+    else
+#endif
+    btm_sec_mx_access_request (p_bcb->rem_bda, BT_PSM_BNEP, FALSE,
+                               BTM_SEC_PROTO_BNEP, bnep_get_uuid32(&(p_bcb->src_uuid)),
+                               &bnep_sec_check_complete, p_bcb);
+
+    return;
+}
+
+
+/*******************************************************************************
+**
+** Function         bnep_process_setup_conn_responce
+**
+** Description      This function processes a peer's setup connection response
+**                  message. The response code is verified and
+**                  Connection open indication will be given to PAN profile
+**
+** Returns          void
+**
+*******************************************************************************/
+void bnep_process_setup_conn_responce (tBNEP_CONN *p_bcb, UINT8 *p_setup)
+{
+    tBNEP_RESULT    resp;
+    UINT16          resp_code;
+
+    BNEP_TRACE_DEBUG ("BNEP received setup responce");
+    /* The state should be either SETUP or CONNECTED */
+    if (p_bcb->con_state != BNEP_STATE_CONN_SETUP)
+    {
+        /* Should we disconnect ? */
+        BNEP_TRACE_ERROR ("BNEP - setup response in bad state %d", p_bcb->con_state);
+        return;
+    }
+
+    /* Check if we are the originator */
+    if (!(p_bcb->con_flags & BNEP_FLAGS_IS_ORIG))
+    {
+        BNEP_TRACE_ERROR ("BNEP - setup response when we are not originator", p_bcb->con_state);
+        return;
+    }
+
+    BE_STREAM_TO_UINT16  (resp_code, p_setup);
+
+    switch (resp_code)
+    {
+    case BNEP_SETUP_INVALID_SRC_UUID:
+        resp = BNEP_CONN_FAILED_SRC_UUID;
+        break;
+
+    case BNEP_SETUP_INVALID_DEST_UUID:
+        resp = BNEP_CONN_FAILED_DST_UUID;
+        break;
+
+    case BNEP_SETUP_INVALID_UUID_SIZE:
+        resp = BNEP_CONN_FAILED_UUID_SIZE;
+        break;
+
+    case BNEP_SETUP_CONN_NOT_ALLOWED:
+    default:
+        resp = BNEP_CONN_FAILED;
+        break;
+    }
+
+    /* Check the responce code */
+    if (resp_code != BNEP_SETUP_CONN_OK)
+    {
+        if (p_bcb->con_flags & BNEP_FLAGS_CONN_COMPLETED)
+        {
+            BNEP_TRACE_EVENT ("BNEP - role change response is %d", resp_code);
+
+            /* Restore the earlier BNEP status */
+            p_bcb->con_state = BNEP_STATE_CONNECTED;
+            p_bcb->con_flags &= (~BNEP_FLAGS_SETUP_RCVD);
+            memcpy ((UINT8 *)&(p_bcb->src_uuid), (UINT8 *)&(p_bcb->prv_src_uuid), sizeof (tBT_UUID));
+            memcpy ((UINT8 *)&(p_bcb->dst_uuid), (UINT8 *)&(p_bcb->prv_dst_uuid), sizeof (tBT_UUID));
+
+            /* Ensure timer is stopped */
+            alarm_cancel(p_bcb->conn_timer);
+            p_bcb->re_transmits = 0;
+
+            /* Tell the user if he has a callback */
+            if (bnep_cb.p_conn_state_cb)
+                (*bnep_cb.p_conn_state_cb) (p_bcb->handle, p_bcb->rem_bda, resp, TRUE);
+
+            return;
+        }
+        else
+        {
+            BNEP_TRACE_ERROR ("BNEP - setup response %d is not OK", resp_code);
+
+            L2CA_DisconnectReq (p_bcb->l2cap_cid);
+
+            /* Tell the user if he has a callback */
+            if ((p_bcb->con_flags & BNEP_FLAGS_IS_ORIG) && (bnep_cb.p_conn_state_cb))
+                (*bnep_cb.p_conn_state_cb) (p_bcb->handle, p_bcb->rem_bda, resp, FALSE);
+
+            bnepu_release_bcb (p_bcb);
+            return;
+        }
+    }
+
+    /* Received successful responce */
+    bnep_connected (p_bcb);
+}
+
+
+/*******************************************************************************
+**
+** Function         bnep_process_control_packet
+**
+** Description      This function processes a peer's setup connection request
+**                  message. The destination UUID is verified and response sent
+**                  Connection open indication will be given to PAN profile
+**
+** Returns          void
+**
+*******************************************************************************/
+UINT8 *bnep_process_control_packet (tBNEP_CONN *p_bcb, UINT8 *p, UINT16 *rem_len, BOOLEAN is_ext)
+{
+    UINT8       control_type;
+    BOOLEAN     bad_pkt = FALSE;
+    UINT16      len, ext_len = 0;
+
+    if (is_ext)
+    {
+        ext_len = *p++;
+        *rem_len = *rem_len - 1;
+    }
+
+    control_type = *p++;
+    *rem_len = *rem_len - 1;
+
+    BNEP_TRACE_EVENT ("BNEP processing control packet rem_len %d, is_ext %d, ctrl_type %d", *rem_len, is_ext, control_type);
+
+    switch (control_type)
+    {
+    case BNEP_CONTROL_COMMAND_NOT_UNDERSTOOD:
+        BNEP_TRACE_ERROR ("BNEP Received Cmd not understood for ctl pkt type: %d", *p);
+        p++;
+        *rem_len = *rem_len - 1;
+        break;
+
+    case BNEP_SETUP_CONNECTION_REQUEST_MSG:
+        len = *p++;
+        if (*rem_len < ((2 * len) + 1))
+        {
+            bad_pkt = TRUE;
+            BNEP_TRACE_ERROR ("BNEP Received Setup message with bad length");
+            break;
+        }
+        if (!is_ext)
+            bnep_process_setup_conn_req (p_bcb, p, (UINT8)len);
+        p += (2 * len);
+        *rem_len = *rem_len - (2 * len) - 1;
+        break;
+
+    case BNEP_SETUP_CONNECTION_RESPONSE_MSG:
+        if (!is_ext)
+            bnep_process_setup_conn_responce (p_bcb, p);
+        p += 2;
+        *rem_len = *rem_len - 2;
+        break;
+
+    case BNEP_FILTER_NET_TYPE_SET_MSG:
+        BE_STREAM_TO_UINT16 (len, p);
+        if (*rem_len < (len + 2))
+        {
+            bad_pkt = TRUE;
+            BNEP_TRACE_ERROR ("BNEP Received Filter set message with bad length");
+            break;
+        }
+        bnepu_process_peer_filter_set (p_bcb, p, len);
+        p += len;
+        *rem_len = *rem_len - len - 2;
+        break;
+
+    case BNEP_FILTER_NET_TYPE_RESPONSE_MSG:
+        bnepu_process_peer_filter_rsp (p_bcb, p);
+        p += 2;
+        *rem_len = *rem_len - 2;
+        break;
+
+    case BNEP_FILTER_MULTI_ADDR_SET_MSG:
+        BE_STREAM_TO_UINT16 (len, p);
+        if (*rem_len < (len + 2))
+        {
+            bad_pkt = TRUE;
+            BNEP_TRACE_ERROR ("BNEP Received Multicast Filter Set message with bad length");
+            break;
+        }
+        bnepu_process_peer_multicast_filter_set (p_bcb, p, len);
+        p += len;
+        *rem_len = *rem_len - len - 2;
+        break;
+
+    case BNEP_FILTER_MULTI_ADDR_RESPONSE_MSG:
+        bnepu_process_multicast_filter_rsp (p_bcb, p);
+        p += 2;
+        *rem_len = *rem_len - 2;
+        break;
+
+    default :
+        BNEP_TRACE_ERROR ("BNEP - bad ctl pkt type: %d", control_type);
+        bnep_send_command_not_understood (p_bcb, control_type);
+        if (is_ext)
+        {
+            p += (ext_len - 1);
+            *rem_len -= (ext_len - 1);
+        }
+        break;
+    }
+
+    if (bad_pkt)
+    {
+        BNEP_TRACE_ERROR ("BNEP - bad ctl pkt length: %d", *rem_len);
+        *rem_len = 0;
+        return NULL;
+    }
+
+    return p;
+}
+
+
+/*******************************************************************************
+**
+** Function         bnepu_process_peer_filter_set
+**
+** Description      This function processes a peer's filter control
+**                  'set' message. The filters are stored in the BCB,
+**                  and an appropriate filter response message sent.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bnepu_process_peer_filter_set (tBNEP_CONN *p_bcb, UINT8 *p_filters, UINT16 len)
+{
+    UINT16      num_filters = 0;
+    UINT16      xx, resp_code = BNEP_FILTER_CRL_OK;
+    UINT16      start, end;
+    UINT8       *p_temp_filters;
+
+    if ((p_bcb->con_state != BNEP_STATE_CONNECTED) &&
+        (!(p_bcb->con_flags & BNEP_FLAGS_CONN_COMPLETED)))
+    {
+        BNEP_TRACE_DEBUG ("BNEP received filter set from peer when there is no connection");
+        return;
+    }
+
+    BNEP_TRACE_DEBUG ("BNEP received filter set from peer");
+    /* Check for length not a multiple of 4 */
+    if (len & 3)
+    {
+        BNEP_TRACE_EVENT ("BNEP - bad filter len: %d", len);
+        bnepu_send_peer_filter_rsp (p_bcb, BNEP_FILTER_CRL_BAD_RANGE);
+        return;
+    }
+
+    if (len)
+        num_filters = (UINT16) (len >> 2);
+
+    /* Validate filter values */
+    if (num_filters <= BNEP_MAX_PROT_FILTERS)
+    {
+        p_temp_filters = p_filters;
+        for (xx = 0; xx < num_filters; xx++)
+        {
+            BE_STREAM_TO_UINT16  (start, p_temp_filters);
+            BE_STREAM_TO_UINT16  (end,   p_temp_filters);
+
+            if (start > end)
+            {
+                resp_code = BNEP_FILTER_CRL_BAD_RANGE;
+                break;
+            }
+        }
+    }
+    else
+        resp_code   = BNEP_FILTER_CRL_MAX_REACHED;
+
+    if (resp_code != BNEP_FILTER_CRL_OK)
+    {
+        bnepu_send_peer_filter_rsp (p_bcb, resp_code);
+        return;
+    }
+
+    if (bnep_cb.p_filter_ind_cb)
+        (*bnep_cb.p_filter_ind_cb) (p_bcb->handle, TRUE, 0, len, p_filters);
+
+    p_bcb->rcvd_num_filters = num_filters;
+    for (xx = 0; xx < num_filters; xx++)
+    {
+        BE_STREAM_TO_UINT16  (start, p_filters);
+        BE_STREAM_TO_UINT16  (end,   p_filters);
+
+        p_bcb->rcvd_prot_filter_start[xx] = start;
+        p_bcb->rcvd_prot_filter_end[xx]   = end;
+    }
+
+    bnepu_send_peer_filter_rsp (p_bcb, resp_code);
+}
+
+
+/*******************************************************************************
+**
+** Function         bnepu_process_peer_filter_rsp
+**
+** Description      This function processes a peer's filter control
+**                  'response' message.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bnepu_process_peer_filter_rsp (tBNEP_CONN *p_bcb, UINT8 *p_data)
+{
+    UINT16          resp_code;
+    tBNEP_RESULT    result;
+
+    BNEP_TRACE_DEBUG ("BNEP received filter responce");
+    /* The state should be  CONNECTED */
+    if ((p_bcb->con_state != BNEP_STATE_CONNECTED) &&
+        (!(p_bcb->con_flags & BNEP_FLAGS_CONN_COMPLETED)))
+    {
+        BNEP_TRACE_ERROR ("BNEP - filter response in bad state %d", p_bcb->con_state);
+        return;
+    }
+
+    /* Check if we are the originator */
+    if (!(p_bcb->con_flags & BNEP_FLAGS_FILTER_RESP_PEND))
+    {
+        BNEP_TRACE_ERROR ("BNEP - filter response when not expecting");
+        return;
+    }
+
+    /* Ensure timer is stopped */
+    alarm_cancel(p_bcb->conn_timer);
+    p_bcb->con_flags &= ~BNEP_FLAGS_FILTER_RESP_PEND;
+    p_bcb->re_transmits = 0;
+
+    BE_STREAM_TO_UINT16  (resp_code, p_data);
+
+    result = BNEP_SUCCESS;
+    if (resp_code != BNEP_FILTER_CRL_OK)
+        result = BNEP_SET_FILTER_FAIL;
+
+    if (bnep_cb.p_filter_ind_cb)
+        (*bnep_cb.p_filter_ind_cb) (p_bcb->handle, FALSE, result, 0, NULL);
+}
+
+/*******************************************************************************
+**
+** Function         bnepu_process_multicast_filter_rsp
+**
+** Description      This function processes multicast filter control
+**                  'response' message.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bnepu_process_multicast_filter_rsp (tBNEP_CONN *p_bcb, UINT8 *p_data)
+{
+    UINT16          resp_code;
+    tBNEP_RESULT    result;
+
+    BNEP_TRACE_DEBUG ("BNEP received multicast filter responce");
+    /* The state should be  CONNECTED */
+    if ((p_bcb->con_state != BNEP_STATE_CONNECTED) &&
+        (!(p_bcb->con_flags & BNEP_FLAGS_CONN_COMPLETED)))
+    {
+        BNEP_TRACE_ERROR ("BNEP - multicast filter response in bad state %d", p_bcb->con_state);
+        return;
+    }
+
+    /* Check if we are the originator */
+    if (!(p_bcb->con_flags & BNEP_FLAGS_MULTI_RESP_PEND))
+    {
+        BNEP_TRACE_ERROR ("BNEP - multicast filter response when not expecting");
+        return;
+    }
+
+    /* Ensure timer is stopped */
+    alarm_cancel(p_bcb->conn_timer);
+    p_bcb->con_flags &= ~BNEP_FLAGS_MULTI_RESP_PEND;
+    p_bcb->re_transmits = 0;
+
+    BE_STREAM_TO_UINT16  (resp_code, p_data);
+
+    result = BNEP_SUCCESS;
+    if (resp_code != BNEP_FILTER_CRL_OK)
+        result = BNEP_SET_FILTER_FAIL;
+
+    if (bnep_cb.p_mfilter_ind_cb)
+        (*bnep_cb.p_mfilter_ind_cb) (p_bcb->handle, FALSE, result, 0, NULL);
+}
+
+/*******************************************************************************
+**
+** Function         bnepu_process_peer_multicast_filter_set
+**
+** Description      This function processes a peer's filter control
+**                  'set' message. The filters are stored in the BCB,
+**                  and an appropriate filter response message sent.
+**
+** Returns          void
+**
+*******************************************************************************/
+void bnepu_process_peer_multicast_filter_set (tBNEP_CONN *p_bcb, UINT8 *p_filters, UINT16 len)
+{
+    UINT16          resp_code = BNEP_FILTER_CRL_OK;
+    UINT16          num_filters, xx;
+    UINT8           *p_temp_filters, null_bda[BD_ADDR_LEN] = {0,0,0,0,0,0};
+
+    if ((p_bcb->con_state != BNEP_STATE_CONNECTED) &&
+        (!(p_bcb->con_flags & BNEP_FLAGS_CONN_COMPLETED)))
+    {
+        BNEP_TRACE_DEBUG ("BNEP received multicast filter set from peer when there is no connection");
+        return;
+    }
+
+    if (len % 12)
+    {
+        BNEP_TRACE_EVENT ("BNEP - bad filter len: %d", len);
+        bnepu_send_peer_multicast_filter_rsp (p_bcb, BNEP_FILTER_CRL_BAD_RANGE);
+        return;
+    }
+
+    if (len > (BNEP_MAX_MULTI_FILTERS * 2 * BD_ADDR_LEN))
+    {
+        BNEP_TRACE_EVENT ("BNEP - Too many filters");
+        bnepu_send_peer_multicast_filter_rsp (p_bcb, BNEP_FILTER_CRL_MAX_REACHED);
+        return;
+    }
+
+    num_filters = 0;
+    if (len)
+        num_filters = (UINT16) (len / 12);
+
+    /* Validate filter values */
+    if (num_filters <= BNEP_MAX_MULTI_FILTERS)
+    {
+        p_temp_filters = p_filters;
+        for (xx = 0; xx < num_filters; xx++)
+        {
+            if (memcmp (p_temp_filters, p_temp_filters + BD_ADDR_LEN, BD_ADDR_LEN) > 0)
+            {
+                bnepu_send_peer_multicast_filter_rsp (p_bcb, BNEP_FILTER_CRL_BAD_RANGE);
+                return;
+            }
+
+            p_temp_filters += (BD_ADDR_LEN * 2);
+        }
+    }
+
+    p_bcb->rcvd_mcast_filters = num_filters;
+    for (xx = 0; xx < num_filters; xx++)
+    {
+        memcpy (p_bcb->rcvd_mcast_filter_start[xx], p_filters, BD_ADDR_LEN);
+        memcpy (p_bcb->rcvd_mcast_filter_end[xx], p_filters + BD_ADDR_LEN, BD_ADDR_LEN);
+        p_filters += (BD_ADDR_LEN * 2);
+
+        /* Check if any of the ranges have all zeros as both starting and ending addresses */
+        if ((memcmp (null_bda, p_bcb->rcvd_mcast_filter_start[xx], BD_ADDR_LEN) == 0) &&
+            (memcmp (null_bda, p_bcb->rcvd_mcast_filter_end[xx], BD_ADDR_LEN) == 0))
+        {
+            p_bcb->rcvd_mcast_filters = 0xFFFF;
+            break;
+        }
+    }
+
+    BNEP_TRACE_EVENT ("BNEP multicast filters %d", p_bcb->rcvd_mcast_filters);
+    bnepu_send_peer_multicast_filter_rsp (p_bcb, resp_code);
+
+    if (bnep_cb.p_mfilter_ind_cb)
+        (*bnep_cb.p_mfilter_ind_cb) (p_bcb->handle, TRUE, 0, len, p_filters);
+}
+
+
+/*******************************************************************************
+**
+** Function         bnepu_send_peer_multicast_filter_rsp
+**
+** Description      This function sends a filter response to a peer
+**
+** Returns          void
+**
+*******************************************************************************/
+void bnepu_send_peer_multicast_filter_rsp (tBNEP_CONN *p_bcb, UINT16 response_code)
+{
+    BT_HDR  *p_buf = (BT_HDR *)osi_malloc(BNEP_BUF_SIZE);
+    UINT8   *p;
+
+    BNEP_TRACE_DEBUG ("BNEP sending multicast filter response %d", response_code);
+
+    p_buf->offset = L2CAP_MIN_OFFSET;
+    p = (UINT8 *)(p_buf + 1) + L2CAP_MIN_OFFSET;
+
+    /* Put in BNEP frame type - filter control */
+    UINT8_TO_BE_STREAM (p, BNEP_FRAME_CONTROL);
+
+    /* Put in filter message type - set filters */
+    UINT8_TO_BE_STREAM (p, BNEP_FILTER_MULTI_ADDR_RESPONSE_MSG);
+
+    UINT16_TO_BE_STREAM (p, response_code);
+
+    p_buf->len = 4;
+
+    bnepu_check_send_packet (p_bcb, p_buf);
+}
+
+
+
+/*******************************************************************************
+**
+** Function         bnep_sec_check_complete
+**
+** Description      This function is registered with BTM and will be called
+**                  after completing the security procedures
+**
+** Returns          void
+**
+*******************************************************************************/
+void bnep_sec_check_complete (BD_ADDR bd_addr, tBT_TRANSPORT trasnport,
+                                    void *p_ref_data, UINT8 result)
+{
+    tBNEP_CONN      *p_bcb = (tBNEP_CONN *)p_ref_data;
+    UINT16          resp_code = BNEP_SETUP_CONN_OK;
+    BOOLEAN         is_role_change;
+    UNUSED(bd_addr);
+    UNUSED(trasnport);
+
+    BNEP_TRACE_EVENT ("BNEP security callback returned result %d", result);
+    if (p_bcb->con_flags & BNEP_FLAGS_CONN_COMPLETED)
+        is_role_change = TRUE;
+    else
+        is_role_change = FALSE;
+
+    /* check if the port is still waiting for security to complete */
+    if (p_bcb->con_state != BNEP_STATE_SEC_CHECKING)
+    {
+        BNEP_TRACE_ERROR ("BNEP Connection in wrong state %d when security is completed", p_bcb->con_state);
+        return;
+    }
+
+    /* if it is outgoing call and result is FAILURE return security fail error */
+    if (!(p_bcb->con_flags & BNEP_FLAGS_SETUP_RCVD))
+    {
+        if (result != BTM_SUCCESS)
+        {
+            if (p_bcb->con_flags & BNEP_FLAGS_CONN_COMPLETED)
+            {
+                /* Tell the user that role change is failed because of security */
+                if (bnep_cb.p_conn_state_cb)
+                    (*bnep_cb.p_conn_state_cb) (p_bcb->handle, p_bcb->rem_bda, BNEP_SECURITY_FAIL, is_role_change);
+
+                p_bcb->con_state = BNEP_STATE_CONNECTED;
+                memcpy ((UINT8 *)&(p_bcb->src_uuid), (UINT8 *)&(p_bcb->prv_src_uuid), sizeof (tBT_UUID));
+                memcpy ((UINT8 *)&(p_bcb->dst_uuid), (UINT8 *)&(p_bcb->prv_dst_uuid), sizeof (tBT_UUID));
+                return;
+            }
+
+            L2CA_DisconnectReq (p_bcb->l2cap_cid);
+
+            /* Tell the user if he has a callback */
+            if (bnep_cb.p_conn_state_cb)
+                (*bnep_cb.p_conn_state_cb) (p_bcb->handle, p_bcb->rem_bda, BNEP_SECURITY_FAIL, is_role_change);
+
+            bnepu_release_bcb (p_bcb);
+            return;
+        }
+
+        /* Transition to the next appropriate state, waiting for connection confirm. */
+        p_bcb->con_state = BNEP_STATE_CONN_SETUP;
+
+        bnep_send_conn_req (p_bcb);
+        alarm_set_on_queue(p_bcb->conn_timer, BNEP_CONN_TIMEOUT_MS,
+                           bnep_conn_timer_timeout, p_bcb,
+                           btu_general_alarm_queue);
+        return;
+    }
+
+    /* it is an incoming call respond appropriately */
+    if (result != BTM_SUCCESS)
+    {
+        bnep_send_conn_responce (p_bcb, BNEP_SETUP_CONN_NOT_ALLOWED);
+        if (p_bcb->con_flags & BNEP_FLAGS_CONN_COMPLETED)
+        {
+            /* Role change is failed because of security. Revert back to connected state */
+            p_bcb->con_state = BNEP_STATE_CONNECTED;
+            p_bcb->con_flags &= (~BNEP_FLAGS_SETUP_RCVD);
+            memcpy ((UINT8 *)&(p_bcb->src_uuid), (UINT8 *)&(p_bcb->prv_src_uuid), sizeof (tBT_UUID));
+            memcpy ((UINT8 *)&(p_bcb->dst_uuid), (UINT8 *)&(p_bcb->prv_dst_uuid), sizeof (tBT_UUID));
+            return;
+        }
+
+        L2CA_DisconnectReq (p_bcb->l2cap_cid);
+
+        bnepu_release_bcb (p_bcb);
+        return;
+    }
+
+    if (bnep_cb.p_conn_ind_cb)
+    {
+        p_bcb->con_state = BNEP_STATE_CONN_SETUP;
+        (*bnep_cb.p_conn_ind_cb) (p_bcb->handle, p_bcb->rem_bda, &p_bcb->dst_uuid, &p_bcb->src_uuid, is_role_change);
+    }
+    else
+    {
+        /* Profile didn't register connection indication call back */
+        bnep_send_conn_responce (p_bcb, resp_code);
+        bnep_connected (p_bcb);
+    }
+
+    return;
+}
+
+
+/*******************************************************************************
+**
+** Function         bnep_is_packet_allowed
+**
+** Description      This function verifies whether the protocol passes through
+**                  the protocol filters set by the peer
+**
+** Returns          BNEP_SUCCESS          - if the protocol is allowed
+**                  BNEP_IGNORE_CMD       - if the protocol is filtered out
+**
+*******************************************************************************/
+tBNEP_RESULT bnep_is_packet_allowed (tBNEP_CONN *p_bcb,
+                                     BD_ADDR p_dest_addr,
+                                     UINT16 protocol,
+                                     BOOLEAN fw_ext_present,
+                                     UINT8 *p_data)
+{
+    if (p_bcb->rcvd_num_filters)
+    {
+        UINT16          i, proto;
+
+        /* Findout the actual protocol to check for the filtering */
+        proto = protocol;
+        if (proto == BNEP_802_1_P_PROTOCOL)
+        {
+            if (fw_ext_present)
+            {
+                UINT8       len, ext;
+                /* parse the extension headers and findout actual protocol */
+                do {
+
+                    ext     = *p_data++;
+                    len     = *p_data++;
+                    p_data += len;
+
+                } while (ext & 0x80);
+            }
+            p_data += 2;
+            BE_STREAM_TO_UINT16 (proto, p_data);
+        }
+
+        for (i=0; i<p_bcb->rcvd_num_filters; i++)
+        {
+            if ((p_bcb->rcvd_prot_filter_start[i] <= proto) &&
+                (proto <= p_bcb->rcvd_prot_filter_end[i]))
+                break;
+        }
+
+        if (i == p_bcb->rcvd_num_filters)
+        {
+            BNEP_TRACE_DEBUG ("Ignoring protocol 0x%x in BNEP data write", proto);
+            return BNEP_IGNORE_CMD;
+        }
+    }
+
+    /* Ckeck for multicast address filtering */
+    if ((p_dest_addr[0] & 0x01) &&
+        p_bcb->rcvd_mcast_filters)
+    {
+        UINT16          i;
+
+        /* Check if every multicast should be filtered */
+        if (p_bcb->rcvd_mcast_filters != 0xFFFF)
+        {
+            /* Check if the address is mentioned in the filter range */
+            for (i = 0; i < p_bcb->rcvd_mcast_filters; i++)
+            {
+                if ((memcmp (p_bcb->rcvd_mcast_filter_start[i], p_dest_addr, BD_ADDR_LEN) <= 0) &&
+                    (memcmp (p_bcb->rcvd_mcast_filter_end[i], p_dest_addr, BD_ADDR_LEN) >= 0))
+                    break;
+            }
+        }
+
+        /*
+        ** If every multicast should be filtered or the address is not in the filter range
+        ** drop the packet
+        */
+        if ((p_bcb->rcvd_mcast_filters == 0xFFFF) || (i == p_bcb->rcvd_mcast_filters))
+        {
+            BNEP_TRACE_DEBUG ("Ignoring multicast address %x.%x.%x.%x.%x.%x in BNEP data write",
+                p_dest_addr[0], p_dest_addr[1], p_dest_addr[2],
+                p_dest_addr[3], p_dest_addr[4], p_dest_addr[5]);
+            return BNEP_IGNORE_CMD;
+        }
+    }
+
+    return BNEP_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         bnep_get_uuid32
+**
+** Description      This function returns the 32 bit equivalent of the given UUID
+**
+** Returns          UINT32          - 32 bit equivalent of the UUID
+**
+*******************************************************************************/
+UINT32 bnep_get_uuid32 (tBT_UUID *src_uuid)
+{
+    UINT32      result;
+
+    if (src_uuid->len == 2)
+        return ((UINT32)src_uuid->uu.uuid16);
+    else if (src_uuid->len == 4)
+        return (src_uuid->uu.uuid32 & 0x0000FFFF);
+    else
+    {
+        result = src_uuid->uu.uuid128[2];
+        result = (result << 8) | (src_uuid->uu.uuid128[3]);
+        return result;
+    }
+}
diff --git a/rtkbt/code/bt/stack/btm/btm_acl.c b/rtkbt/code/bt/stack/btm/btm_acl.c
new file mode 100755
index 0000000..b4a2562
--- /dev/null
+++ b/rtkbt/code/bt/stack/btm/btm_acl.c
@@ -0,0 +1,2644 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2000-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/*****************************************************************************
+**
+**  Name:          btm_acl.c
+**
+**  Description:   This file contains functions that handle ACL connections.
+**                 This includes operations such as hold and sniff modes,
+**                 supported packet types.
+**
+**                 This module contains both internal and external (API)
+**                 functions. External (API) functions are distinguishable
+**                 by their names beginning with uppercase BTM.
+**
+**
+******************************************************************************/
+
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+#include <stddef.h>
+
+#include "bt_types.h"
+#include "bt_target.h"
+#include "device/include/controller.h"
+#include "bt_common.h"
+#include "hcimsgs.h"
+#include "btu.h"
+#include "btm_api.h"
+#include "btm_int.h"
+#include "l2c_int.h"
+#include "hcidefs.h"
+#include "bt_utils.h"
+
+
+extern fixed_queue_t *btu_general_alarm_queue;
+
+static void btm_read_remote_features (UINT16 handle);
+static void btm_read_remote_ext_features (UINT16 handle, UINT8 page_number);
+static void btm_process_remote_ext_features (tACL_CONN *p_acl_cb, UINT8 num_read_pages);
+
+/* 3 seconds timeout waiting for responses */
+#define BTM_DEV_REPLY_TIMEOUT_MS (3 * 1000)
+
+/*******************************************************************************
+**
+** Function         btm_acl_init
+**
+** Description      This function is called at BTM startup to initialize
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_acl_init (void)
+{
+    BTM_TRACE_DEBUG ("btm_acl_init");
+#if 0  /* cleared in btm_init; put back in if called from anywhere else! */
+    memset (&btm_cb.acl_db, 0, sizeof (btm_cb.acl_db));
+    memset (btm_cb.btm_scn, 0, BTM_MAX_SCN);          /* Initialize the SCN usage to FALSE */
+    btm_cb.btm_def_link_policy     = 0;
+    btm_cb.p_bl_changed_cb         = NULL;
+#endif
+
+    /* Initialize nonzero defaults */
+    btm_cb.btm_def_link_super_tout = HCI_DEFAULT_INACT_TOUT;
+    btm_cb.acl_disc_reason         = 0xff ;
+}
+
+/*******************************************************************************
+**
+** Function         btm_bda_to_acl
+**
+** Description      This function returns the FIRST acl_db entry for the passed BDA.
+**
+** Parameters      bda : BD address of the remote device
+**                 transport : Physical transport used for ACL connection (BR/EDR or LE)
+**
+** Returns          Returns pointer to the ACL DB for the requested BDA if found.
+**                  NULL if not found.
+**
+*******************************************************************************/
+tACL_CONN *btm_bda_to_acl (BD_ADDR bda, tBT_TRANSPORT transport)
+{
+    tACL_CONN   *p = &btm_cb.acl_db[0];
+    UINT16       xx;
+    if (bda)
+    {
+        for (xx = 0; xx < MAX_L2CAP_LINKS; xx++, p++)
+        {
+            if ((p->in_use) && (!memcmp (p->remote_addr, bda, BD_ADDR_LEN))
+#if BLE_INCLUDED == TRUE
+                && p->transport == transport
+#endif
+                )
+            {
+                BTM_TRACE_DEBUG ("btm_bda_to_acl found");
+                return(p);
+            }
+        }
+    }
+
+    /* If here, no BD Addr found */
+    return((tACL_CONN *)NULL);
+}
+
+/*******************************************************************************
+**
+** Function         btm_handle_to_acl_index
+**
+** Description      This function returns the FIRST acl_db entry for the passed hci_handle.
+**
+** Returns          index to the acl_db or MAX_L2CAP_LINKS.
+**
+*******************************************************************************/
+UINT8 btm_handle_to_acl_index (UINT16 hci_handle)
+{
+    tACL_CONN   *p = &btm_cb.acl_db[0];
+    UINT8       xx;
+    BTM_TRACE_DEBUG ("btm_handle_to_acl_index");
+    for (xx = 0; xx < MAX_L2CAP_LINKS; xx++, p++)
+    {
+        if ((p->in_use) && (p->hci_handle == hci_handle))
+        {
+            break;
+        }
+    }
+
+    /* If here, no BD Addr found */
+    return(xx);
+}
+
+#if BLE_PRIVACY_SPT == TRUE
+/*******************************************************************************
+**
+** Function         btm_ble_get_acl_remote_addr
+**
+** Description      This function reads the active remote address used for the
+**                  connection.
+**
+** Returns          success return TRUE, otherwise FALSE.
+**
+*******************************************************************************/
+BOOLEAN btm_ble_get_acl_remote_addr(tBTM_SEC_DEV_REC *p_dev_rec, BD_ADDR conn_addr,
+                                    tBLE_ADDR_TYPE *p_addr_type)
+{
+#if BLE_INCLUDED == TRUE
+    BOOLEAN         st = TRUE;
+
+    if (p_dev_rec == NULL)
+    {
+        BTM_TRACE_ERROR("btm_ble_get_acl_remote_addr can not find device with matching address");
+        return FALSE;
+    }
+
+    switch (p_dev_rec->ble.active_addr_type)
+    {
+    case BTM_BLE_ADDR_PSEUDO:
+        memcpy(conn_addr, p_dev_rec->bd_addr, BD_ADDR_LEN);
+        * p_addr_type = p_dev_rec->ble.ble_addr_type;
+        break;
+
+    case BTM_BLE_ADDR_RRA:
+        memcpy(conn_addr, p_dev_rec->ble.cur_rand_addr, BD_ADDR_LEN);
+        * p_addr_type = BLE_ADDR_RANDOM;
+        break;
+
+    case BTM_BLE_ADDR_STATIC:
+        memcpy(conn_addr, p_dev_rec->ble.static_addr, BD_ADDR_LEN);
+        * p_addr_type = p_dev_rec->ble.static_addr_type;
+        break;
+
+    default:
+        BTM_TRACE_ERROR("Unknown active address: %d", p_dev_rec->ble.active_addr_type);
+        st = FALSE;
+        break;
+    }
+
+    return st;
+#else
+    UNUSED(p_dev_rec);
+    UNUSED(conn_addr);
+    UNUSED(p_addr_type);
+    return FALSE;
+#endif
+}
+#endif
+/*******************************************************************************
+**
+** Function         btm_acl_created
+**
+** Description      This function is called by L2CAP when an ACL connection
+**                  is created.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_acl_created (BD_ADDR bda, DEV_CLASS dc, BD_NAME bdn,
+                      UINT16 hci_handle, UINT8 link_role, tBT_TRANSPORT transport)
+{
+    tBTM_SEC_DEV_REC *p_dev_rec = NULL;
+    tACL_CONN        *p;
+    UINT8             xx;
+
+    BTM_TRACE_DEBUG ("btm_acl_created hci_handle=%d link_role=%d  transport=%d",
+                      hci_handle,link_role, transport);
+    /* Ensure we don't have duplicates */
+    p = btm_bda_to_acl(bda, transport);
+    if (p != (tACL_CONN *)NULL)
+    {
+        p->hci_handle = hci_handle;
+        p->link_role  = link_role;
+#if BLE_INCLUDED == TRUE
+        p->transport = transport;
+#endif
+        BTM_TRACE_DEBUG ("Duplicate btm_acl_created: RemBdAddr: %02x%02x%02x%02x%02x%02x",
+                          bda[0], bda[1], bda[2], bda[3], bda[4], bda[5]);
+        BTM_SetLinkPolicy(p->remote_addr, &btm_cb.btm_def_link_policy);
+        return;
+    }
+
+    /* Allocate acl_db entry */
+    for (xx = 0, p = &btm_cb.acl_db[0]; xx < MAX_L2CAP_LINKS; xx++, p++)
+    {
+        if (!p->in_use)
+        {
+            p->in_use            = TRUE;
+            p->hci_handle        = hci_handle;
+            p->link_role         = link_role;
+            p->link_up_issued    = FALSE;
+            memcpy (p->remote_addr, bda, BD_ADDR_LEN);
+
+#if BLE_INCLUDED == TRUE
+            p->transport = transport;
+#if BLE_PRIVACY_SPT == TRUE
+            if (transport == BT_TRANSPORT_LE)
+                btm_ble_refresh_local_resolvable_private_addr(bda,
+                                                    btm_cb.ble_ctr_cb.addr_mgnt_cb.private_addr);
+#else
+            p->conn_addr_type = BLE_ADDR_PUBLIC;
+            memcpy(p->conn_addr, &controller_get_interface()->get_address()->address, BD_ADDR_LEN);
+
+#endif
+#endif
+            p->switch_role_state = BTM_ACL_SWKEY_STATE_IDLE;
+
+            btm_pm_sm_alloc(xx);
+
+
+            if (dc)
+                memcpy (p->remote_dc, dc, DEV_CLASS_LEN);
+
+            if (bdn)
+                memcpy (p->remote_name, bdn, BTM_MAX_REM_BD_NAME_LEN);
+
+            /* if BR/EDR do something more */
+            if (transport == BT_TRANSPORT_BR_EDR)
+            {
+                btsnd_hcic_read_rmt_clk_offset (p->hci_handle);
+                btsnd_hcic_rmt_ver_req (p->hci_handle);
+            }
+            p_dev_rec = btm_find_dev_by_handle (hci_handle);
+
+#if (BLE_INCLUDED == TRUE)
+            if (p_dev_rec )
+            {
+                BTM_TRACE_DEBUG ("device_type=0x%x", p_dev_rec->device_type);
+            }
+#endif
+
+            if (p_dev_rec && !(transport == BT_TRANSPORT_LE))
+            {
+                /* If remote features already known, copy them and continue connection setup */
+                if ((p_dev_rec->num_read_pages) &&
+                    (p_dev_rec->num_read_pages <= (HCI_EXT_FEATURES_PAGE_MAX + 1)))
+                {
+                    memcpy (p->peer_lmp_features, p_dev_rec->features,
+                        (HCI_FEATURE_BYTES_PER_PAGE * p_dev_rec->num_read_pages));
+                    p->num_read_pages = p_dev_rec->num_read_pages;
+
+                    const UINT8 req_pend = (p_dev_rec->sm4 & BTM_SM4_REQ_PEND);
+
+                    /* Store the Peer Security Capabilites (in SM4 and rmt_sec_caps) */
+                    btm_sec_set_peer_sec_caps(p, p_dev_rec);
+
+                    BTM_TRACE_API("%s: pend:%d", __FUNCTION__, req_pend);
+                    if (req_pend)
+                    {
+                        /* Request for remaining Security Features (if any) */
+                        l2cu_resubmit_pending_sec_req (p_dev_rec->bd_addr);
+                    }
+                    btm_establish_continue (p);
+                    return;
+                }
+            }
+
+#if (BLE_INCLUDED == TRUE)
+            /* If here, features are not known yet */
+            if (p_dev_rec && transport == BT_TRANSPORT_LE)
+            {
+#if BLE_PRIVACY_SPT == TRUE
+                btm_ble_get_acl_remote_addr (p_dev_rec, p->active_remote_addr,
+                    &p->active_remote_addr_type);
+#endif
+
+                if (HCI_LE_SLAVE_INIT_FEAT_EXC_SUPPORTED(controller_get_interface()->get_features_ble()->as_array)
+                    || link_role == HCI_ROLE_MASTER)
+                {
+                    btsnd_hcic_ble_read_remote_feat(p->hci_handle);
+                }
+                else
+                {
+                    btm_establish_continue(p);
+                }
+            }
+            else
+#endif
+            {
+                btm_read_remote_features (p->hci_handle);
+            }
+
+            /* read page 1 - on rmt feature event for buffer reasons */
+            return;
+        }
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         btm_acl_report_role_change
+**
+** Description      This function is called when the local device is deemed
+**                  to be down. It notifies L2CAP of the failure.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_acl_report_role_change (UINT8 hci_status, BD_ADDR bda)
+{
+    tBTM_ROLE_SWITCH_CMPL   ref_data;
+    BTM_TRACE_DEBUG ("btm_acl_report_role_change");
+    if (btm_cb.devcb.p_switch_role_cb
+        && (bda && (0 == memcmp(btm_cb.devcb.switch_role_ref_data.remote_bd_addr, bda, BD_ADDR_LEN))))
+    {
+        memcpy (&ref_data, &btm_cb.devcb.switch_role_ref_data, sizeof(tBTM_ROLE_SWITCH_CMPL));
+        ref_data.hci_status = hci_status;
+        (*btm_cb.devcb.p_switch_role_cb)(&ref_data);
+        memset (&btm_cb.devcb.switch_role_ref_data, 0, sizeof(tBTM_ROLE_SWITCH_CMPL));
+        btm_cb.devcb.p_switch_role_cb = NULL;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btm_acl_removed
+**
+** Description      This function is called by L2CAP when an ACL connection
+**                  is removed. Since only L2CAP creates ACL links, we use
+**                  the L2CAP link index as our index into the control blocks.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_acl_removed (BD_ADDR bda, tBT_TRANSPORT transport)
+{
+    tACL_CONN   *p;
+    tBTM_BL_EVENT_DATA  evt_data;
+#if (defined BLE_INCLUDED && BLE_INCLUDED == TRUE)
+    tBTM_SEC_DEV_REC *p_dev_rec=NULL;
+#endif
+    BTM_TRACE_DEBUG ("btm_acl_removed");
+    p = btm_bda_to_acl(bda, transport);
+    if (p != (tACL_CONN *)NULL)
+    {
+        p->in_use = FALSE;
+
+        /* if the disconnected channel has a pending role switch, clear it now */
+        btm_acl_report_role_change(HCI_ERR_NO_CONNECTION, bda);
+
+        /* Only notify if link up has had a chance to be issued */
+        if (p->link_up_issued)
+        {
+            p->link_up_issued = FALSE;
+
+            /* If anyone cares, tell him database changed */
+            if (btm_cb.p_bl_changed_cb)
+            {
+                evt_data.event = BTM_BL_DISCN_EVT;
+                evt_data.discn.p_bda = bda;
+#if BLE_INCLUDED == TRUE
+                evt_data.discn.handle = p->hci_handle;
+                evt_data.discn.transport = p->transport;
+#endif
+                (*btm_cb.p_bl_changed_cb)(&evt_data);
+            }
+
+            btm_acl_update_busy_level (BTM_BLI_ACL_DOWN_EVT);
+        }
+
+#if (defined BLE_INCLUDED && BLE_INCLUDED == TRUE)
+
+        BTM_TRACE_DEBUG ("acl hci_handle=%d transport=%d connectable_mode=0x%0x link_role=%d",
+                          p->hci_handle,
+                          p->transport,
+                          btm_cb.ble_ctr_cb.inq_var.connectable_mode,
+                          p->link_role);
+
+        p_dev_rec = btm_find_dev(bda);
+        if ( p_dev_rec)
+        {
+            BTM_TRACE_DEBUG("before update p_dev_rec->sec_flags=0x%x", p_dev_rec->sec_flags);
+            if (p->transport == BT_TRANSPORT_LE)
+            {
+                BTM_TRACE_DEBUG("LE link down");
+                p_dev_rec->sec_flags &= ~(BTM_SEC_LE_ENCRYPTED | BTM_SEC_ROLE_SWITCHED);
+                if ( (p_dev_rec->sec_flags & BTM_SEC_LE_LINK_KEY_KNOWN) == 0)
+                {
+                    BTM_TRACE_DEBUG("Not Bonded");
+                    p_dev_rec->sec_flags &= ~(BTM_SEC_LE_LINK_KEY_AUTHED | BTM_SEC_LE_AUTHENTICATED);
+                }
+                else
+                {
+                    BTM_TRACE_DEBUG("Bonded");
+                }
+            }
+            else
+            {
+                BTM_TRACE_DEBUG("Bletooth link down");
+                p_dev_rec->sec_flags &= ~(BTM_SEC_AUTHORIZED | BTM_SEC_AUTHENTICATED
+                                        | BTM_SEC_ENCRYPTED | BTM_SEC_ROLE_SWITCHED);
+            }
+            BTM_TRACE_DEBUG("after update p_dev_rec->sec_flags=0x%x", p_dev_rec->sec_flags);
+        }
+        else
+        {
+            BTM_TRACE_ERROR("Device not found");
+
+        }
+#endif
+
+        /* Clear the ACL connection data */
+        memset(p, 0, sizeof(tACL_CONN));
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         btm_acl_device_down
+**
+** Description      This function is called when the local device is deemed
+**                  to be down. It notifies L2CAP of the failure.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_acl_device_down (void)
+{
+    tACL_CONN   *p = &btm_cb.acl_db[0];
+    UINT16      xx;
+    BTM_TRACE_DEBUG ("btm_acl_device_down");
+    for (xx = 0; xx < MAX_L2CAP_LINKS; xx++, p++)
+    {
+        if (p->in_use)
+        {
+            BTM_TRACE_DEBUG ("hci_handle=%d HCI_ERR_HW_FAILURE ",p->hci_handle );
+            l2c_link_hci_disc_comp (p->hci_handle, HCI_ERR_HW_FAILURE);
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btm_acl_update_busy_level
+**
+** Description      This function is called to update the busy level of the system
+**                  .
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_acl_update_busy_level (tBTM_BLI_EVENT event)
+{
+    tBTM_BL_UPDATE_DATA  evt;
+    UINT8 busy_level;
+    BTM_TRACE_DEBUG ("btm_acl_update_busy_level");
+    BOOLEAN old_inquiry_state = btm_cb.is_inquiry;
+    switch (event)
+    {
+        case BTM_BLI_ACL_UP_EVT:
+            BTM_TRACE_DEBUG ("BTM_BLI_ACL_UP_EVT");
+            break;
+        case BTM_BLI_ACL_DOWN_EVT:
+            BTM_TRACE_DEBUG ("BTM_BLI_ACL_DOWN_EVT");
+            break;
+        case BTM_BLI_PAGE_EVT:
+            BTM_TRACE_DEBUG ("BTM_BLI_PAGE_EVT");
+            btm_cb.is_paging = TRUE;
+            evt.busy_level_flags= BTM_BL_PAGING_STARTED;
+            break;
+        case BTM_BLI_PAGE_DONE_EVT:
+            BTM_TRACE_DEBUG ("BTM_BLI_PAGE_DONE_EVT");
+            btm_cb.is_paging = FALSE;
+            evt.busy_level_flags = BTM_BL_PAGING_COMPLETE;
+            break;
+        case BTM_BLI_INQ_EVT:
+            BTM_TRACE_DEBUG ("BTM_BLI_INQ_EVT");
+            btm_cb.is_inquiry = TRUE;
+            evt.busy_level_flags = BTM_BL_INQUIRY_STARTED;
+            break;
+        case BTM_BLI_INQ_CANCEL_EVT:
+            BTM_TRACE_DEBUG ("BTM_BLI_INQ_CANCEL_EVT");
+            btm_cb.is_inquiry = FALSE;
+            evt.busy_level_flags = BTM_BL_INQUIRY_CANCELLED;
+            break;
+        case BTM_BLI_INQ_DONE_EVT:
+            BTM_TRACE_DEBUG ("BTM_BLI_INQ_DONE_EVT");
+            btm_cb.is_inquiry = FALSE;
+            evt.busy_level_flags = BTM_BL_INQUIRY_COMPLETE;
+            break;
+    }
+
+    if (btm_cb.is_paging || btm_cb.is_inquiry)
+        busy_level = 10;
+    else
+        busy_level = BTM_GetNumAclLinks();
+
+    if ((busy_level != btm_cb.busy_level) ||(old_inquiry_state != btm_cb.is_inquiry))
+    {
+        evt.event         = BTM_BL_UPDATE_EVT;
+        evt.busy_level    = busy_level;
+        btm_cb.busy_level = busy_level;
+        if (btm_cb.p_bl_changed_cb && (btm_cb.bl_evt_mask & BTM_BL_UPDATE_MASK))
+        {
+            (*btm_cb.p_bl_changed_cb)((tBTM_BL_EVENT_DATA *)&evt);
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         BTM_GetRole
+**
+** Description      This function is called to get the role of the local device
+**                  for the ACL connection with the specified remote device
+**
+** Returns          BTM_SUCCESS if connection exists.
+**                  BTM_UNKNOWN_ADDR if no active link with bd addr specified
+**
+*******************************************************************************/
+tBTM_STATUS BTM_GetRole (BD_ADDR remote_bd_addr, UINT8 *p_role)
+{
+    tACL_CONN   *p;
+    BTM_TRACE_DEBUG ("BTM_GetRole");
+    if ((p = btm_bda_to_acl(remote_bd_addr, BT_TRANSPORT_BR_EDR)) == NULL)
+    {
+        *p_role = BTM_ROLE_UNDEFINED;
+        return(BTM_UNKNOWN_ADDR);
+    }
+
+    /* Get the current role */
+    *p_role = p->link_role;
+    return(BTM_SUCCESS);
+}
+
+
+/*******************************************************************************
+**
+** Function         BTM_SwitchRole
+**
+** Description      This function is called to switch role between master and
+**                  slave.  If role is already set it will do nothing.  If the
+**                  command was initiated, the callback function is called upon
+**                  completion.
+**
+** Returns          BTM_SUCCESS if already in specified role.
+**                  BTM_CMD_STARTED if command issued to controller.
+**                  BTM_NO_RESOURCES if couldn't allocate memory to issue command
+**                  BTM_UNKNOWN_ADDR if no active link with bd addr specified
+**                  BTM_MODE_UNSUPPORTED if local device does not support role switching
+**                  BTM_BUSY if the previous command is not completed
+**
+*******************************************************************************/
+tBTM_STATUS BTM_SwitchRole (BD_ADDR remote_bd_addr, UINT8 new_role, tBTM_CMPL_CB *p_cb)
+{
+    tACL_CONN   *p;
+    tBTM_SEC_DEV_REC  *p_dev_rec = NULL;
+#if BTM_SCO_INCLUDED == TRUE
+    BOOLEAN    is_sco_active;
+#endif
+    tBTM_STATUS  status;
+    tBTM_PM_MODE pwr_mode;
+    tBTM_PM_PWR_MD settings;
+#if (BT_USE_TRACES == TRUE)
+    BD_ADDR_PTR  p_bda;
+#endif
+    BTM_TRACE_API ("BTM_SwitchRole BDA: %02x-%02x-%02x-%02x-%02x-%02x",
+                    remote_bd_addr[0], remote_bd_addr[1], remote_bd_addr[2],
+                    remote_bd_addr[3], remote_bd_addr[4], remote_bd_addr[5]);
+
+    /* Make sure the local device supports switching */
+    if (!controller_get_interface()->supports_master_slave_role_switch())
+        return(BTM_MODE_UNSUPPORTED);
+
+    if (btm_cb.devcb.p_switch_role_cb && p_cb)
+    {
+#if (BT_USE_TRACES == TRUE)
+        p_bda = btm_cb.devcb.switch_role_ref_data.remote_bd_addr;
+        BTM_TRACE_DEBUG ("Role switch on other device is in progress 0x%02x%02x%02x%02x%02x%02x",
+                          p_bda[0], p_bda[1], p_bda[2],
+                          p_bda[3], p_bda[4], p_bda[5]);
+#endif
+        return(BTM_BUSY);
+    }
+
+    if ((p = btm_bda_to_acl(remote_bd_addr, BT_TRANSPORT_BR_EDR)) == NULL)
+        return(BTM_UNKNOWN_ADDR);
+
+    /* Finished if already in desired role */
+    if (p->link_role == new_role)
+        return(BTM_SUCCESS);
+
+#if BTM_SCO_INCLUDED == TRUE
+    /* Check if there is any SCO Active on this BD Address */
+    is_sco_active = btm_is_sco_active_by_bdaddr(remote_bd_addr);
+
+    if (is_sco_active == TRUE)
+        return(BTM_NO_RESOURCES);
+#endif
+
+    /* Ignore role switch request if the previous request was not completed */
+    if (p->switch_role_state != BTM_ACL_SWKEY_STATE_IDLE)
+    {
+        BTM_TRACE_DEBUG ("BTM_SwitchRole busy: %d",
+                          p->switch_role_state);
+        return(BTM_BUSY);
+    }
+
+    if ((status = BTM_ReadPowerMode(p->remote_addr, &pwr_mode)) != BTM_SUCCESS)
+        return(status);
+
+    /* Wake up the link if in sniff or park before attempting switch */
+    if (pwr_mode == BTM_PM_MD_PARK || pwr_mode == BTM_PM_MD_SNIFF)
+    {
+        memset( (void*)&settings, 0, sizeof(settings));
+        settings.mode = BTM_PM_MD_ACTIVE;
+        status = BTM_SetPowerMode (BTM_PM_SET_ONLY_ID, p->remote_addr, &settings);
+        if (status != BTM_CMD_STARTED)
+            return(BTM_WRONG_MODE);
+
+        p->switch_role_state = BTM_ACL_SWKEY_STATE_MODE_CHANGE;
+    }
+    /* some devices do not support switch while encryption is on */
+    else
+    {
+        p_dev_rec = btm_find_dev (remote_bd_addr);
+        if ((p_dev_rec != NULL)
+            && ((p_dev_rec->sec_flags & BTM_SEC_ENCRYPTED) != 0)
+            && !BTM_EPR_AVAILABLE(p))
+        {
+            /* bypass turning off encryption if change link key is already doing it */
+            if (p->encrypt_state != BTM_ACL_ENCRYPT_STATE_ENCRYPT_OFF)
+            {
+                if (!btsnd_hcic_set_conn_encrypt (p->hci_handle, FALSE))
+                    return(BTM_NO_RESOURCES);
+                else
+                    p->encrypt_state = BTM_ACL_ENCRYPT_STATE_ENCRYPT_OFF;
+            }
+
+            p->switch_role_state = BTM_ACL_SWKEY_STATE_ENCRYPTION_OFF;
+        }
+        else
+        {
+            if (!btsnd_hcic_switch_role (remote_bd_addr, new_role))
+                return(BTM_NO_RESOURCES);
+
+            p->switch_role_state = BTM_ACL_SWKEY_STATE_IN_PROGRESS;
+
+#if BTM_DISC_DURING_RS == TRUE
+            if (p_dev_rec)
+                p_dev_rec->rs_disc_pending = BTM_SEC_RS_PENDING;
+#endif
+        }
+    }
+
+    /* Initialize return structure in case request fails */
+    if (p_cb)
+    {
+        memcpy (btm_cb.devcb.switch_role_ref_data.remote_bd_addr, remote_bd_addr,
+                BD_ADDR_LEN);
+        btm_cb.devcb.switch_role_ref_data.role = new_role;
+        /* initialized to an error code */
+        btm_cb.devcb.switch_role_ref_data.hci_status = HCI_ERR_UNSUPPORTED_VALUE;
+        btm_cb.devcb.p_switch_role_cb = p_cb;
+    }
+    return(BTM_CMD_STARTED);
+}
+
+/*******************************************************************************
+**
+** Function         btm_acl_encrypt_change
+**
+** Description      This function is when encryption of the connection is
+**                  completed by the LM.  Checks to see if a role switch or
+**                  change of link key was active and initiates or continues
+**                  process if needed.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_acl_encrypt_change (UINT16 handle, UINT8 status, UINT8 encr_enable)
+{
+    tACL_CONN *p;
+    UINT8     xx;
+    tBTM_SEC_DEV_REC  *p_dev_rec;
+    tBTM_BL_ROLE_CHG_DATA   evt;
+
+    BTM_TRACE_DEBUG ("btm_acl_encrypt_change handle=%d status=%d encr_enabl=%d",
+                      handle, status, encr_enable);
+    xx = btm_handle_to_acl_index(handle);
+    /* don't assume that we can never get a bad hci_handle */
+    if (xx < MAX_L2CAP_LINKS)
+        p = &btm_cb.acl_db[xx];
+    else
+        return;
+
+    /* Process Role Switch if active */
+    if (p->switch_role_state == BTM_ACL_SWKEY_STATE_ENCRYPTION_OFF)
+    {
+        /* if encryption turn off failed we still will try to switch role */
+        if (encr_enable)
+        {
+            p->switch_role_state = BTM_ACL_SWKEY_STATE_IDLE;
+            p->encrypt_state = BTM_ACL_ENCRYPT_STATE_IDLE;
+        }
+        else
+        {
+            p->switch_role_state = BTM_ACL_SWKEY_STATE_SWITCHING;
+            p->encrypt_state = BTM_ACL_ENCRYPT_STATE_TEMP_FUNC;
+        }
+
+        if (!btsnd_hcic_switch_role (p->remote_addr, (UINT8)!p->link_role))
+        {
+            p->switch_role_state = BTM_ACL_SWKEY_STATE_IDLE;
+            p->encrypt_state = BTM_ACL_ENCRYPT_STATE_IDLE;
+            btm_acl_report_role_change(btm_cb.devcb.switch_role_ref_data.hci_status, p->remote_addr);
+        }
+#if BTM_DISC_DURING_RS == TRUE
+        else
+        {
+            if ((p_dev_rec = btm_find_dev (p->remote_addr)) != NULL)
+                p_dev_rec->rs_disc_pending = BTM_SEC_RS_PENDING;
+        }
+#endif
+
+    }
+    /* Finished enabling Encryption after role switch */
+    else if (p->switch_role_state == BTM_ACL_SWKEY_STATE_ENCRYPTION_ON)
+    {
+        p->switch_role_state = BTM_ACL_SWKEY_STATE_IDLE;
+        p->encrypt_state = BTM_ACL_ENCRYPT_STATE_IDLE;
+        btm_acl_report_role_change(btm_cb.devcb.switch_role_ref_data.hci_status, p->remote_addr);
+
+        /* if role change event is registered, report it now */
+        if (btm_cb.p_bl_changed_cb && (btm_cb.bl_evt_mask & BTM_BL_ROLE_CHG_MASK))
+        {
+            evt.event       = BTM_BL_ROLE_CHG_EVT;
+            evt.new_role    = btm_cb.devcb.switch_role_ref_data.role;
+            evt.p_bda       = btm_cb.devcb.switch_role_ref_data.remote_bd_addr;
+            evt.hci_status  = btm_cb.devcb.switch_role_ref_data.hci_status;
+            (*btm_cb.p_bl_changed_cb)((tBTM_BL_EVENT_DATA *)&evt);
+
+            BTM_TRACE_DEBUG("Role Switch Event: new_role 0x%02x, HCI Status 0x%02x, rs_st:%d",
+                             evt.new_role, evt.hci_status, p->switch_role_state);
+        }
+
+#if BTM_DISC_DURING_RS == TRUE
+        /* If a disconnect is pending, issue it now that role switch has completed */
+        if ((p_dev_rec = btm_find_dev (p->remote_addr)) != NULL)
+        {
+            if (p_dev_rec->rs_disc_pending == BTM_SEC_DISC_PENDING)
+            {
+                BTM_TRACE_WARNING("btm_acl_encrypt_change -> Issuing delayed HCI_Disconnect!!!");
+                btsnd_hcic_disconnect(p_dev_rec->hci_handle, HCI_ERR_PEER_USER);
+            }
+            BTM_TRACE_ERROR("btm_acl_encrypt_change: tBTM_SEC_DEV:0x%x rs_disc_pending=%d",
+                            PTR_TO_UINT(p_dev_rec), p_dev_rec->rs_disc_pending);
+            p_dev_rec->rs_disc_pending = BTM_SEC_RS_NOT_PENDING;     /* reset flag */
+        }
+#endif
+    }
+}
+/*******************************************************************************
+**
+** Function         BTM_SetLinkPolicy
+**
+** Description      Create and send HCI "Write Policy Set" command
+**
+** Returns          status of the operation
+**
+*******************************************************************************/
+tBTM_STATUS BTM_SetLinkPolicy (BD_ADDR remote_bda, UINT16 *settings)
+{
+    tACL_CONN   *p;
+    UINT8       *localFeatures = BTM_ReadLocalFeatures();
+    BTM_TRACE_DEBUG ("BTM_SetLinkPolicy");
+/*    BTM_TRACE_API ("BTM_SetLinkPolicy: requested settings: 0x%04x", *settings ); */
+
+    /* First, check if hold mode is supported */
+    if (*settings != HCI_DISABLE_ALL_LM_MODES)
+    {
+        if ( (*settings & HCI_ENABLE_MASTER_SLAVE_SWITCH) && (!HCI_SWITCH_SUPPORTED(localFeatures)) )
+        {
+            *settings &= (~HCI_ENABLE_MASTER_SLAVE_SWITCH);
+            BTM_TRACE_API ("BTM_SetLinkPolicy switch not supported (settings: 0x%04x)", *settings );
+        }
+        if ( (*settings & HCI_ENABLE_HOLD_MODE) && (!HCI_HOLD_MODE_SUPPORTED(localFeatures)) )
+        {
+            *settings &= (~HCI_ENABLE_HOLD_MODE);
+            BTM_TRACE_API ("BTM_SetLinkPolicy hold not supported (settings: 0x%04x)", *settings );
+        }
+        if ( (*settings & HCI_ENABLE_SNIFF_MODE) && (!HCI_SNIFF_MODE_SUPPORTED(localFeatures)) )
+        {
+            *settings &= (~HCI_ENABLE_SNIFF_MODE);
+            BTM_TRACE_API ("BTM_SetLinkPolicy sniff not supported (settings: 0x%04x)", *settings );
+        }
+        if ( (*settings & HCI_ENABLE_PARK_MODE) && (!HCI_PARK_MODE_SUPPORTED(localFeatures)) )
+        {
+            *settings &= (~HCI_ENABLE_PARK_MODE);
+            BTM_TRACE_API ("BTM_SetLinkPolicy park not supported (settings: 0x%04x)", *settings );
+        }
+    }
+
+    if ((p = btm_bda_to_acl(remote_bda, BT_TRANSPORT_BR_EDR)) != NULL)
+        return(btsnd_hcic_write_policy_set (p->hci_handle, *settings) ? BTM_CMD_STARTED : BTM_NO_RESOURCES);
+
+    /* If here, no BD Addr found */
+    return(BTM_UNKNOWN_ADDR);
+}
+
+/*******************************************************************************
+**
+** Function         BTM_SetDefaultLinkPolicy
+**
+** Description      Set the default value for HCI "Write Policy Set" command
+**                  to use when an ACL link is created.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTM_SetDefaultLinkPolicy (UINT16 settings)
+{
+    UINT8 *localFeatures = BTM_ReadLocalFeatures();
+
+    BTM_TRACE_DEBUG("BTM_SetDefaultLinkPolicy setting:0x%04x", settings);
+
+    if((settings & HCI_ENABLE_MASTER_SLAVE_SWITCH) && (!HCI_SWITCH_SUPPORTED(localFeatures)))
+    {
+        settings &= ~HCI_ENABLE_MASTER_SLAVE_SWITCH;
+        BTM_TRACE_DEBUG("BTM_SetDefaultLinkPolicy switch not supported (settings: 0x%04x)", settings);
+    }
+    if ((settings & HCI_ENABLE_HOLD_MODE) && (!HCI_HOLD_MODE_SUPPORTED(localFeatures)))
+    {
+        settings &= ~HCI_ENABLE_HOLD_MODE;
+        BTM_TRACE_DEBUG("BTM_SetDefaultLinkPolicy hold not supported (settings: 0x%04x)", settings);
+    }
+    if ((settings & HCI_ENABLE_SNIFF_MODE) && (!HCI_SNIFF_MODE_SUPPORTED(localFeatures)))
+    {
+        settings &= ~HCI_ENABLE_SNIFF_MODE;
+        BTM_TRACE_DEBUG("BTM_SetDefaultLinkPolicy sniff not supported (settings: 0x%04x)", settings);
+    }
+    if ((settings & HCI_ENABLE_PARK_MODE) && (!HCI_PARK_MODE_SUPPORTED(localFeatures)))
+    {
+        settings &= ~HCI_ENABLE_PARK_MODE;
+        BTM_TRACE_DEBUG("BTM_SetDefaultLinkPolicy park not supported (settings: 0x%04x)", settings);
+    }
+    BTM_TRACE_DEBUG("Set DefaultLinkPolicy:0x%04x", settings);
+
+    btm_cb.btm_def_link_policy = settings;
+
+    /* Set the default Link Policy of the controller */
+    btsnd_hcic_write_def_policy_set(settings);
+}
+
+/*******************************************************************************
+**
+** Function         btm_read_remote_version_complete
+**
+** Description      This function is called when the command complete message
+**                  is received from the HCI for the remote version info.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_read_remote_version_complete (UINT8 *p)
+{
+    tACL_CONN        *p_acl_cb = &btm_cb.acl_db[0];
+    UINT8             status;
+    UINT16            handle;
+    int               xx;
+    BTM_TRACE_DEBUG ("btm_read_remote_version_complete");
+
+    STREAM_TO_UINT8  (status, p);
+    STREAM_TO_UINT16 (handle, p);
+
+    /* Look up the connection by handle and copy features */
+    for (xx = 0; xx < MAX_L2CAP_LINKS; xx++, p_acl_cb++)
+    {
+        if ((p_acl_cb->in_use) && (p_acl_cb->hci_handle == handle))
+        {
+            if (status == HCI_SUCCESS)
+            {
+                STREAM_TO_UINT8  (p_acl_cb->lmp_version, p);
+                STREAM_TO_UINT16 (p_acl_cb->manufacturer, p);
+                STREAM_TO_UINT16 (p_acl_cb->lmp_subversion, p);
+            }
+
+#if (defined(BLE_INCLUDED) && (BLE_INCLUDED == TRUE))
+            if (p_acl_cb->transport == BT_TRANSPORT_LE)
+                l2cble_notify_le_connection (p_acl_cb->remote_addr);
+#endif  // (defined(BLE_INCLUDED) && (BLE_INCLUDED == TRUE))
+            break;
+        }
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         btm_process_remote_ext_features
+**
+** Description      Local function called to process all extended features pages
+**                  read from a remote device.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_process_remote_ext_features (tACL_CONN *p_acl_cb, UINT8 num_read_pages)
+{
+    UINT16              handle = p_acl_cb->hci_handle;
+    tBTM_SEC_DEV_REC    *p_dev_rec = btm_find_dev_by_handle (handle);
+    UINT8               page_idx;
+
+    BTM_TRACE_DEBUG ("btm_process_remote_ext_features");
+
+    /* Make sure we have the record to save remote features information */
+    if (p_dev_rec == NULL)
+    {
+        /* Get a new device; might be doing dedicated bonding */
+        p_dev_rec = btm_find_or_alloc_dev (p_acl_cb->remote_addr);
+    }
+
+    p_acl_cb->num_read_pages = num_read_pages;
+    p_dev_rec->num_read_pages = num_read_pages;
+
+    /* Move the pages to placeholder */
+    for (page_idx = 0; page_idx < num_read_pages; page_idx++)
+    {
+        if (page_idx > HCI_EXT_FEATURES_PAGE_MAX)
+        {
+            BTM_TRACE_ERROR("%s: page=%d unexpected", __FUNCTION__, page_idx);
+            break;
+        }
+        memcpy (p_dev_rec->features[page_idx], p_acl_cb->peer_lmp_features[page_idx],
+                HCI_FEATURE_BYTES_PER_PAGE);
+    }
+
+    const UINT8 req_pend = (p_dev_rec->sm4 & BTM_SM4_REQ_PEND);
+
+    /* Store the Peer Security Capabilites (in SM4 and rmt_sec_caps) */
+    btm_sec_set_peer_sec_caps(p_acl_cb, p_dev_rec);
+
+    BTM_TRACE_API("%s: pend:%d", __FUNCTION__, req_pend);
+    if (req_pend)
+    {
+        /* Request for remaining Security Features (if any) */
+        l2cu_resubmit_pending_sec_req (p_dev_rec->bd_addr);
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         btm_read_remote_features
+**
+** Description      Local function called to send a read remote supported features/
+**                  remote extended features page[0].
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_read_remote_features (UINT16 handle)
+{
+    UINT8       acl_idx;
+    tACL_CONN   *p_acl_cb;
+
+    BTM_TRACE_DEBUG("btm_read_remote_features() handle: %d", handle);
+
+    if ((acl_idx = btm_handle_to_acl_index(handle)) >= MAX_L2CAP_LINKS)
+    {
+        BTM_TRACE_ERROR("btm_read_remote_features handle=%d invalid", handle);
+        return;
+    }
+
+    p_acl_cb = &btm_cb.acl_db[acl_idx];
+    p_acl_cb->num_read_pages = 0;
+    memset (p_acl_cb->peer_lmp_features, 0, sizeof(p_acl_cb->peer_lmp_features));
+
+    /* first send read remote supported features HCI command */
+    /* because we don't know whether the remote support extended feature command */
+    btsnd_hcic_rmt_features_req (handle);
+}
+
+
+/*******************************************************************************
+**
+** Function         btm_read_remote_ext_features
+**
+** Description      Local function called to send a read remote extended features
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_read_remote_ext_features (UINT16 handle, UINT8 page_number)
+{
+    BTM_TRACE_DEBUG("btm_read_remote_ext_features() handle: %d page: %d", handle, page_number);
+
+    btsnd_hcic_rmt_ext_features(handle, page_number);
+}
+
+
+/*******************************************************************************
+**
+** Function         btm_read_remote_features_complete
+**
+** Description      This function is called when the remote supported features
+**                  complete event is received from the HCI.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_read_remote_features_complete (UINT8 *p)
+{
+    tACL_CONN        *p_acl_cb;
+    UINT8             status;
+    UINT16            handle;
+    UINT8            acl_idx;
+
+    BTM_TRACE_DEBUG ("btm_read_remote_features_complete");
+    STREAM_TO_UINT8  (status, p);
+
+    if (status != HCI_SUCCESS)
+    {
+        BTM_TRACE_ERROR ("btm_read_remote_features_complete failed (status 0x%02x)", status);
+        return;
+    }
+
+        STREAM_TO_UINT16 (handle, p);
+
+    if ((acl_idx = btm_handle_to_acl_index(handle)) >= MAX_L2CAP_LINKS)
+        {
+        BTM_TRACE_ERROR("btm_read_remote_features_complete handle=%d invalid", handle);
+        return;
+                }
+
+    p_acl_cb = &btm_cb.acl_db[acl_idx];
+
+    /* Copy the received features page */
+    STREAM_TO_ARRAY(p_acl_cb->peer_lmp_features[HCI_EXT_FEATURES_PAGE_0], p,
+                    HCI_FEATURE_BYTES_PER_PAGE);
+
+    if ((HCI_LMP_EXTENDED_SUPPORTED(p_acl_cb->peer_lmp_features[HCI_EXT_FEATURES_PAGE_0])) &&
+        (controller_get_interface()->supports_reading_remote_extended_features()))
+    {
+        /* if the remote controller has extended features and local controller supports
+        ** HCI_Read_Remote_Extended_Features command then start reading these feature starting
+        ** with extended features page 1 */
+        BTM_TRACE_DEBUG ("Start reading remote extended features");
+        btm_read_remote_ext_features(handle, HCI_EXT_FEATURES_PAGE_1);
+        return;
+    }
+
+    /* Remote controller has no extended features. Process remote controller supported features
+       (features page HCI_EXT_FEATURES_PAGE_0). */
+    btm_process_remote_ext_features (p_acl_cb, 1);
+
+    /* Continue with HCI connection establishment */
+    btm_establish_continue (p_acl_cb);
+}
+
+/*******************************************************************************
+**
+** Function         btm_read_remote_ext_features_complete
+**
+** Description      This function is called when the remote extended features
+**                  complete event is received from the HCI.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_read_remote_ext_features_complete (UINT8 *p)
+{
+    tACL_CONN   *p_acl_cb;
+    UINT8       page_num, max_page;
+    UINT16      handle;
+    UINT8       acl_idx;
+
+    BTM_TRACE_DEBUG ("btm_read_remote_ext_features_complete");
+
+    ++p;
+    STREAM_TO_UINT16 (handle, p);
+    STREAM_TO_UINT8  (page_num, p);
+    STREAM_TO_UINT8  (max_page, p);
+
+    /* Validate parameters */
+    if ((acl_idx = btm_handle_to_acl_index(handle)) >= MAX_L2CAP_LINKS)
+    {
+        BTM_TRACE_ERROR("btm_read_remote_ext_features_complete handle=%d invalid", handle);
+        return;
+    }
+
+    if (max_page > HCI_EXT_FEATURES_PAGE_MAX)
+    {
+        BTM_TRACE_ERROR("btm_read_remote_ext_features_complete page=%d unknown", max_page);
+        return;
+    }
+
+    p_acl_cb = &btm_cb.acl_db[acl_idx];
+
+    /* Copy the received features page */
+    STREAM_TO_ARRAY(p_acl_cb->peer_lmp_features[page_num], p, HCI_FEATURE_BYTES_PER_PAGE);
+
+    /* If there is the next remote features page and
+     * we have space to keep this page data - read this page */
+    if ((page_num < max_page) && (page_num < HCI_EXT_FEATURES_PAGE_MAX))
+    {
+        page_num++;
+        BTM_TRACE_DEBUG("BTM reads next remote extended features page (%d)", page_num);
+        btm_read_remote_ext_features (handle, page_num);
+        return;
+    }
+
+    /* Reading of remote feature pages is complete */
+    BTM_TRACE_DEBUG("BTM reached last remote extended features page (%d)", page_num);
+
+    /* Process the pages */
+    btm_process_remote_ext_features (p_acl_cb, (UINT8) (page_num + 1));
+
+    /* Continue with HCI connection establishment */
+    btm_establish_continue (p_acl_cb);
+}
+
+/*******************************************************************************
+**
+** Function         btm_read_remote_ext_features_failed
+**
+** Description      This function is called when the remote extended features
+**                  complete event returns a failed status.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_read_remote_ext_features_failed (UINT8 status, UINT16 handle)
+{
+    tACL_CONN   *p_acl_cb;
+    UINT8       acl_idx;
+
+    BTM_TRACE_WARNING ("btm_read_remote_ext_features_failed (status 0x%02x) for handle %d",
+                         status, handle);
+
+    if ((acl_idx = btm_handle_to_acl_index(handle)) >= MAX_L2CAP_LINKS)
+    {
+        BTM_TRACE_ERROR("btm_read_remote_ext_features_failed handle=%d invalid", handle);
+        return;
+    }
+
+    p_acl_cb = &btm_cb.acl_db[acl_idx];
+
+    /* Process supported features only */
+    btm_process_remote_ext_features (p_acl_cb, 1);
+
+    /* Continue HCI connection establishment */
+    btm_establish_continue (p_acl_cb);
+}
+
+/*******************************************************************************
+**
+** Function         btm_establish_continue
+**
+** Description      This function is called when the command complete message
+**                  is received from the HCI for the read local link policy request.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_establish_continue (tACL_CONN *p_acl_cb)
+{
+        tBTM_BL_EVENT_DATA  evt_data;
+        BTM_TRACE_DEBUG ("btm_establish_continue");
+#if (!defined(BTM_BYPASS_EXTRA_ACL_SETUP) || BTM_BYPASS_EXTRA_ACL_SETUP == FALSE)
+#if (defined BLE_INCLUDED && BLE_INCLUDED == TRUE)
+        if (p_acl_cb->transport == BT_TRANSPORT_BR_EDR)
+#endif
+        {
+            /* For now there are a some devices that do not like sending */
+            /* commands events and data at the same time. */
+            /* Set the packet types to the default allowed by the device */
+            btm_set_packet_types (p_acl_cb, btm_cb.btm_acl_pkt_types_supported);
+
+            if (btm_cb.btm_def_link_policy)
+                BTM_SetLinkPolicy (p_acl_cb->remote_addr, &btm_cb.btm_def_link_policy);
+        }
+#endif
+        p_acl_cb->link_up_issued = TRUE;
+
+        /* If anyone cares, tell him database changed */
+        if (btm_cb.p_bl_changed_cb)
+        {
+            evt_data.event = BTM_BL_CONN_EVT;
+            evt_data.conn.p_bda = p_acl_cb->remote_addr;
+            evt_data.conn.p_bdn = p_acl_cb->remote_name;
+            evt_data.conn.p_dc  = p_acl_cb->remote_dc;
+            evt_data.conn.p_features = p_acl_cb->peer_lmp_features[HCI_EXT_FEATURES_PAGE_0];
+#if BLE_INCLUDED == TRUE
+            evt_data.conn.handle = p_acl_cb->hci_handle;
+            evt_data.conn.transport = p_acl_cb->transport;
+#endif
+
+            (*btm_cb.p_bl_changed_cb)(&evt_data);
+        }
+        btm_acl_update_busy_level (BTM_BLI_ACL_UP_EVT);
+}
+
+
+/*******************************************************************************
+**
+** Function         BTM_SetDefaultLinkSuperTout
+**
+** Description      Set the default value for HCI "Write Link Supervision Timeout"
+**                  command to use when an ACL link is created.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTM_SetDefaultLinkSuperTout (UINT16 timeout)
+{
+    BTM_TRACE_DEBUG ("BTM_SetDefaultLinkSuperTout");
+    btm_cb.btm_def_link_super_tout = timeout;
+}
+
+/*******************************************************************************
+**
+** Function         BTM_GetLinkSuperTout
+**
+** Description      Read the link supervision timeout value of the connection
+**
+** Returns          status of the operation
+**
+*******************************************************************************/
+tBTM_STATUS BTM_GetLinkSuperTout (BD_ADDR remote_bda, UINT16 *p_timeout)
+{
+    tACL_CONN   *p = btm_bda_to_acl(remote_bda, BT_TRANSPORT_BR_EDR);
+
+    BTM_TRACE_DEBUG ("BTM_GetLinkSuperTout");
+    if (p != (tACL_CONN *)NULL)
+    {
+        *p_timeout = p->link_super_tout;
+        return(BTM_SUCCESS);
+    }
+    /* If here, no BD Addr found */
+    return(BTM_UNKNOWN_ADDR);
+}
+
+
+/*******************************************************************************
+**
+** Function         BTM_SetLinkSuperTout
+**
+** Description      Create and send HCI "Write Link Supervision Timeout" command
+**
+** Returns          status of the operation
+**
+*******************************************************************************/
+tBTM_STATUS BTM_SetLinkSuperTout (BD_ADDR remote_bda, UINT16 timeout)
+{
+    tACL_CONN   *p = btm_bda_to_acl(remote_bda, BT_TRANSPORT_BR_EDR);
+
+    BTM_TRACE_DEBUG ("BTM_SetLinkSuperTout");
+    if (p != (tACL_CONN *)NULL)
+    {
+        p->link_super_tout = timeout;
+
+        /* Only send if current role is Master; 2.0 spec requires this */
+        if (p->link_role == BTM_ROLE_MASTER)
+        {
+            if (!btsnd_hcic_write_link_super_tout (LOCAL_BR_EDR_CONTROLLER_ID,
+                                                   p->hci_handle, timeout))
+                return(BTM_NO_RESOURCES);
+
+            return(BTM_CMD_STARTED);
+        }
+        else
+            return(BTM_SUCCESS);
+    }
+
+    /* If here, no BD Addr found */
+    return(BTM_UNKNOWN_ADDR);
+}
+
+/*******************************************************************************
+**
+** Function         BTM_IsAclConnectionUp
+**
+** Description      This function is called to check if an ACL connection exists
+**                  to a specific remote BD Address.
+**
+** Returns          TRUE if connection is up, else FALSE.
+**
+*******************************************************************************/
+BOOLEAN BTM_IsAclConnectionUp (BD_ADDR remote_bda, tBT_TRANSPORT transport)
+{
+    tACL_CONN   *p;
+
+    BTM_TRACE_API ("BTM_IsAclConnectionUp: RemBdAddr: %02x%02x%02x%02x%02x%02x",
+                    remote_bda[0], remote_bda[1], remote_bda[2],
+                    remote_bda[3], remote_bda[4], remote_bda[5]);
+
+    p = btm_bda_to_acl(remote_bda, transport);
+    if (p != (tACL_CONN *)NULL)
+    {
+        return(TRUE);
+    }
+
+    /* If here, no BD Addr found */
+    return(FALSE);
+}
+
+/*******************************************************************************
+**
+** Function         BTM_GetNumAclLinks
+**
+** Description      This function is called to count the number of
+**                  ACL links that are active.
+**
+** Returns          UINT16  Number of active ACL links
+**
+*******************************************************************************/
+UINT16 BTM_GetNumAclLinks (void)
+{
+    uint16_t num_acl = 0;
+
+    for (uint16_t i = 0; i < MAX_L2CAP_LINKS; ++i)
+    {
+        if (btm_cb.acl_db[i].in_use)
+            ++num_acl;
+    }
+
+    return num_acl;
+}
+
+/*******************************************************************************
+**
+** Function         btm_get_acl_disc_reason_code
+**
+** Description      This function is called to get the disconnection reason code
+**                  returned by the HCI at disconnection complete event.
+**
+** Returns          TRUE if connection is up, else FALSE.
+**
+*******************************************************************************/
+UINT16 btm_get_acl_disc_reason_code (void)
+{
+    UINT8 res = btm_cb.acl_disc_reason;
+    BTM_TRACE_DEBUG ("btm_get_acl_disc_reason_code");
+    return(res);
+}
+
+
+/*******************************************************************************
+**
+** Function         BTM_GetHCIConnHandle
+**
+** Description      This function is called to get the handle for an ACL connection
+**                  to a specific remote BD Address.
+**
+** Returns          the handle of the connection, or 0xFFFF if none.
+**
+*******************************************************************************/
+UINT16 BTM_GetHCIConnHandle (BD_ADDR remote_bda, tBT_TRANSPORT transport)
+{
+    tACL_CONN   *p;
+    BTM_TRACE_DEBUG ("BTM_GetHCIConnHandle");
+    p = btm_bda_to_acl(remote_bda, transport);
+    if (p != (tACL_CONN *)NULL)
+    {
+        return(p->hci_handle);
+    }
+
+    /* If here, no BD Addr found */
+    return(0xFFFF);
+}
+
+/*******************************************************************************
+**
+** Function         btm_process_clk_off_comp_evt
+**
+** Description      This function is called when clock offset command completes.
+**
+** Input Parms      hci_handle - connection handle associated with the change
+**                  clock offset
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_process_clk_off_comp_evt (UINT16 hci_handle, UINT16 clock_offset)
+{
+    UINT8      xx;
+    BTM_TRACE_DEBUG ("btm_process_clk_off_comp_evt");
+    /* Look up the connection by handle and set the current mode */
+    if ((xx = btm_handle_to_acl_index(hci_handle)) < MAX_L2CAP_LINKS)
+        btm_cb.acl_db[xx].clock_offset = clock_offset;
+}
+
+/*******************************************************************************
+**
+** Function         btm_acl_role_changed
+**
+** Description      This function is called whan a link's master/slave role change
+**                  event or command status event (with error) is received.
+**                  It updates the link control block, and calls
+**                  the registered callback with status and role (if registered).
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_acl_role_changed (UINT8 hci_status, BD_ADDR bd_addr, UINT8 new_role)
+{
+    UINT8                   *p_bda = (bd_addr) ? bd_addr :
+                                        btm_cb.devcb.switch_role_ref_data.remote_bd_addr;
+    tACL_CONN               *p = btm_bda_to_acl(p_bda, BT_TRANSPORT_BR_EDR);
+    tBTM_ROLE_SWITCH_CMPL   *p_data = &btm_cb.devcb.switch_role_ref_data;
+    tBTM_SEC_DEV_REC        *p_dev_rec;
+    tBTM_BL_ROLE_CHG_DATA   evt;
+
+    BTM_TRACE_DEBUG ("btm_acl_role_changed");
+    /* Ignore any stray events */
+    if (p == NULL)
+    {
+        /* it could be a failure */
+        if (hci_status != HCI_SUCCESS)
+            btm_acl_report_role_change(hci_status, bd_addr);
+        return;
+    }
+
+    p_data->hci_status = hci_status;
+
+    if (hci_status == HCI_SUCCESS)
+    {
+        p_data->role = new_role;
+        memcpy(p_data->remote_bd_addr, p_bda, BD_ADDR_LEN);
+
+        /* Update cached value */
+        p->link_role = new_role;
+
+        /* Reload LSTO: link supervision timeout is reset in the LM after a role switch */
+        if (new_role == BTM_ROLE_MASTER)
+        {
+            BTM_SetLinkSuperTout (p->remote_addr, p->link_super_tout);
+        }
+    }
+    else
+    {
+        /* so the BTM_BL_ROLE_CHG_EVT uses the old role */
+        new_role = p->link_role;
+    }
+
+    /* Check if any SCO req is pending for role change */
+    btm_sco_chk_pend_rolechange (p->hci_handle);
+
+    /* if switching state is switching we need to turn encryption on */
+    /* if idle, we did not change encryption */
+    if (p->switch_role_state == BTM_ACL_SWKEY_STATE_SWITCHING)
+    {
+        if (btsnd_hcic_set_conn_encrypt (p->hci_handle, TRUE))
+        {
+            p->encrypt_state = BTM_ACL_ENCRYPT_STATE_ENCRYPT_ON;
+            p->switch_role_state = BTM_ACL_SWKEY_STATE_ENCRYPTION_ON;
+            return;
+        }
+    }
+
+    /* Set the switch_role_state to IDLE since the reply received from HCI */
+    /* regardless of its result either success or failed. */
+    if (p->switch_role_state == BTM_ACL_SWKEY_STATE_IN_PROGRESS)
+    {
+        p->switch_role_state = BTM_ACL_SWKEY_STATE_IDLE;
+        p->encrypt_state = BTM_ACL_ENCRYPT_STATE_IDLE;
+    }
+
+    /* if role switch complete is needed, report it now */
+    btm_acl_report_role_change(hci_status, bd_addr);
+
+    /* if role change event is registered, report it now */
+    if (btm_cb.p_bl_changed_cb && (btm_cb.bl_evt_mask & BTM_BL_ROLE_CHG_MASK))
+    {
+        evt.event       = BTM_BL_ROLE_CHG_EVT;
+        evt.new_role    = new_role;
+        evt.p_bda       = p_bda;
+        evt.hci_status  = hci_status;
+        (*btm_cb.p_bl_changed_cb)((tBTM_BL_EVENT_DATA *)&evt);
+    }
+
+    BTM_TRACE_DEBUG("Role Switch Event: new_role 0x%02x, HCI Status 0x%02x, rs_st:%d",
+                     p_data->role, p_data->hci_status, p->switch_role_state);
+
+#if BTM_DISC_DURING_RS == TRUE
+    /* If a disconnect is pending, issue it now that role switch has completed */
+    if ((p_dev_rec = btm_find_dev (p_bda)) != NULL)
+    {
+        if (p_dev_rec->rs_disc_pending == BTM_SEC_DISC_PENDING)
+        {
+            BTM_TRACE_WARNING("btm_acl_role_changed -> Issuing delayed HCI_Disconnect!!!");
+            btsnd_hcic_disconnect(p_dev_rec->hci_handle, HCI_ERR_PEER_USER);
+        }
+        BTM_TRACE_ERROR("tBTM_SEC_DEV:0x%x rs_disc_pending=%d",
+                        PTR_TO_UINT(p_dev_rec), p_dev_rec->rs_disc_pending);
+        p_dev_rec->rs_disc_pending = BTM_SEC_RS_NOT_PENDING;     /* reset flag */
+    }
+
+#endif
+
+}
+
+/*******************************************************************************
+**
+** Function         BTM_AllocateSCN
+**
+** Description      Look through the Server Channel Numbers for a free one.
+**
+** Returns          Allocated SCN number or 0 if none.
+**
+*******************************************************************************/
+
+UINT8 BTM_AllocateSCN(void)
+{
+    UINT8   x;
+    BTM_TRACE_DEBUG ("BTM_AllocateSCN");
+
+    // stack reserves scn 1 for HFP, HSP we still do the correct way
+    for (x = 1; x < BTM_MAX_SCN; x++)
+    {
+        if (!btm_cb.btm_scn[x])
+        {
+            btm_cb.btm_scn[x] = TRUE;
+            return(x+1);
+        }
+    }
+
+    return(0);     /* No free ports */
+}
+
+/*******************************************************************************
+**
+** Function         BTM_TryAllocateSCN
+**
+** Description      Try to allocate a fixed server channel
+**
+** Returns          Returns TRUE if server channel was available
+**
+*******************************************************************************/
+
+BOOLEAN BTM_TryAllocateSCN(UINT8 scn)
+{
+    /* Make sure we don't exceed max port range.
+     * Stack reserves scn 1 for HFP, HSP we still do the correct way.
+     */
+    if ( (scn>=BTM_MAX_SCN) || (scn == 1) )
+        return FALSE;
+
+    /* check if this port is available */
+    if (!btm_cb.btm_scn[scn-1])
+    {
+        btm_cb.btm_scn[scn-1] = TRUE;
+        return TRUE;
+    }
+
+    return (FALSE);     /* Port was busy */
+}
+
+/*******************************************************************************
+**
+** Function         BTM_FreeSCN
+**
+** Description      Free the specified SCN.
+**
+** Returns          TRUE or FALSE
+**
+*******************************************************************************/
+BOOLEAN BTM_FreeSCN(UINT8 scn)
+{
+    BTM_TRACE_DEBUG ("BTM_FreeSCN ");
+    if (scn <= BTM_MAX_SCN)
+    {
+        btm_cb.btm_scn[scn-1] = FALSE;
+        return(TRUE);
+    }
+    else
+        return(FALSE);      /* Illegal SCN passed in */
+}
+
+/*******************************************************************************
+**
+** Function         btm_set_packet_types
+**
+** Description      This function sets the packet types used for a specific
+**                  ACL connection. It is called internally by btm_acl_created
+**                  or by an application/profile by BTM_SetPacketTypes.
+**
+** Returns          status of the operation
+**
+*******************************************************************************/
+tBTM_STATUS btm_set_packet_types (tACL_CONN *p, UINT16 pkt_types)
+{
+    UINT16 temp_pkt_types;
+    BTM_TRACE_DEBUG ("btm_set_packet_types");
+    /* Save in the ACL control blocks, types that we support */
+    temp_pkt_types = (pkt_types & BTM_ACL_SUPPORTED_PKTS_MASK &
+                      btm_cb.btm_acl_pkt_types_supported);
+
+    /* OR in any exception packet types if at least 2.0 version of spec */
+    temp_pkt_types |= ((pkt_types & BTM_ACL_EXCEPTION_PKTS_MASK) |
+                       (btm_cb.btm_acl_pkt_types_supported & BTM_ACL_EXCEPTION_PKTS_MASK));
+
+    /* Exclude packet types not supported by the peer */
+    btm_acl_chk_peer_pkt_type_support (p, &temp_pkt_types);
+
+    BTM_TRACE_DEBUG ("SetPacketType Mask -> 0x%04x", temp_pkt_types);
+
+    if (!btsnd_hcic_change_conn_type (p->hci_handle, temp_pkt_types))
+    {
+        return(BTM_NO_RESOURCES);
+    }
+
+    p->pkt_types_mask = temp_pkt_types;
+
+    return(BTM_CMD_STARTED);
+}
+
+/*******************************************************************************
+**
+** Function         btm_get_max_packet_size
+**
+** Returns          Returns maximum packet size that can be used for current
+**                  connection, 0 if connection is not established
+**
+*******************************************************************************/
+UINT16 btm_get_max_packet_size (BD_ADDR addr)
+{
+    tACL_CONN   *p = btm_bda_to_acl(addr, BT_TRANSPORT_BR_EDR);
+    UINT16      pkt_types = 0;
+    UINT16      pkt_size = 0;
+    BTM_TRACE_DEBUG ("btm_get_max_packet_size");
+    if (p != NULL)
+    {
+        pkt_types = p->pkt_types_mask;
+    }
+    else
+    {
+        /* Special case for when info for the local device is requested */
+        if (memcmp (controller_get_interface()->get_address(), addr, BD_ADDR_LEN) == 0)
+        {
+            pkt_types = btm_cb.btm_acl_pkt_types_supported;
+        }
+    }
+
+    if (pkt_types)
+    {
+        if (!(pkt_types & BTM_ACL_PKT_TYPES_MASK_NO_3_DH5))
+            pkt_size = HCI_EDR3_DH5_PACKET_SIZE;
+        else if (!(pkt_types & BTM_ACL_PKT_TYPES_MASK_NO_2_DH5))
+            pkt_size = HCI_EDR2_DH5_PACKET_SIZE;
+        else if (!(pkt_types & BTM_ACL_PKT_TYPES_MASK_NO_3_DH3))
+            pkt_size = HCI_EDR3_DH3_PACKET_SIZE;
+        else if (pkt_types & BTM_ACL_PKT_TYPES_MASK_DH5)
+            pkt_size = HCI_DH5_PACKET_SIZE;
+        else if (!(pkt_types & BTM_ACL_PKT_TYPES_MASK_NO_2_DH3))
+            pkt_size = HCI_EDR2_DH3_PACKET_SIZE;
+        else if (pkt_types & BTM_ACL_PKT_TYPES_MASK_DM5)
+            pkt_size = HCI_DM5_PACKET_SIZE;
+        else if (pkt_types & BTM_ACL_PKT_TYPES_MASK_DH3)
+            pkt_size = HCI_DH3_PACKET_SIZE;
+        else if (pkt_types & BTM_ACL_PKT_TYPES_MASK_DM3)
+            pkt_size = HCI_DM3_PACKET_SIZE;
+        else if (!(pkt_types & BTM_ACL_PKT_TYPES_MASK_NO_3_DH1))
+            pkt_size = HCI_EDR3_DH1_PACKET_SIZE;
+        else if (!(pkt_types & BTM_ACL_PKT_TYPES_MASK_NO_2_DH1))
+            pkt_size = HCI_EDR2_DH1_PACKET_SIZE;
+        else if (pkt_types & BTM_ACL_PKT_TYPES_MASK_DH1)
+            pkt_size = HCI_DH1_PACKET_SIZE;
+        else if (pkt_types & BTM_ACL_PKT_TYPES_MASK_DM1)
+            pkt_size = HCI_DM1_PACKET_SIZE;
+    }
+
+   return(pkt_size);
+}
+
+/*******************************************************************************
+**
+** Function         BTM_ReadRemoteVersion
+**
+** Returns          If connected report peer device info
+**
+*******************************************************************************/
+tBTM_STATUS BTM_ReadRemoteVersion (BD_ADDR addr, UINT8 *lmp_version,
+                                   UINT16 *manufacturer, UINT16 *lmp_sub_version)
+{
+    tACL_CONN        *p = btm_bda_to_acl(addr, BT_TRANSPORT_BR_EDR);
+    BTM_TRACE_DEBUG ("BTM_ReadRemoteVersion");
+    if (p == NULL)
+        return(BTM_UNKNOWN_ADDR);
+
+    if (lmp_version)
+        *lmp_version = p->lmp_version;
+
+    if (manufacturer)
+        *manufacturer = p->manufacturer;
+
+    if (lmp_sub_version)
+        *lmp_sub_version = p->lmp_subversion;
+
+    return(BTM_SUCCESS);
+}
+
+/*******************************************************************************
+**
+** Function         BTM_ReadRemoteFeatures
+**
+** Returns          pointer to the remote supported features mask (8 bytes)
+**
+*******************************************************************************/
+UINT8 *BTM_ReadRemoteFeatures (BD_ADDR addr)
+{
+    tACL_CONN        *p = btm_bda_to_acl(addr, BT_TRANSPORT_BR_EDR);
+    BTM_TRACE_DEBUG ("BTM_ReadRemoteFeatures");
+    if (p == NULL)
+    {
+        return(NULL);
+    }
+
+    return(p->peer_lmp_features[HCI_EXT_FEATURES_PAGE_0]);
+}
+
+/*******************************************************************************
+**
+** Function         BTM_ReadRemoteExtendedFeatures
+**
+** Returns          pointer to the remote extended features mask (8 bytes)
+**                  or NULL if bad page
+**
+*******************************************************************************/
+UINT8 *BTM_ReadRemoteExtendedFeatures (BD_ADDR addr, UINT8 page_number)
+{
+    tACL_CONN        *p = btm_bda_to_acl(addr, BT_TRANSPORT_BR_EDR);
+    BTM_TRACE_DEBUG ("BTM_ReadRemoteExtendedFeatures");
+    if (p == NULL)
+    {
+        return(NULL);
+    }
+
+    if (page_number > HCI_EXT_FEATURES_PAGE_MAX)
+    {
+        BTM_TRACE_ERROR("Warning: BTM_ReadRemoteExtendedFeatures page %d unknown", page_number);
+        return NULL;
+    }
+
+    return(p->peer_lmp_features[page_number]);
+}
+
+/*******************************************************************************
+**
+** Function         BTM_ReadNumberRemoteFeaturesPages
+**
+** Returns          number of features pages read from the remote device.
+**
+*******************************************************************************/
+UINT8 BTM_ReadNumberRemoteFeaturesPages (BD_ADDR addr)
+{
+    tACL_CONN        *p = btm_bda_to_acl(addr, BT_TRANSPORT_BR_EDR);
+    BTM_TRACE_DEBUG ("BTM_ReadNumberRemoteFeaturesPages");
+    if (p == NULL)
+    {
+        return(0);
+    }
+
+    return(p->num_read_pages);
+}
+
+/*******************************************************************************
+**
+** Function         BTM_ReadAllRemoteFeatures
+**
+** Returns          pointer to all features of the remote (24 bytes).
+**
+*******************************************************************************/
+UINT8 *BTM_ReadAllRemoteFeatures (BD_ADDR addr)
+{
+    tACL_CONN        *p = btm_bda_to_acl(addr, BT_TRANSPORT_BR_EDR);
+    BTM_TRACE_DEBUG ("BTM_ReadAllRemoteFeatures");
+    if (p == NULL)
+    {
+        return(NULL);
+    }
+
+    return(p->peer_lmp_features[HCI_EXT_FEATURES_PAGE_0]);
+}
+
+/*******************************************************************************
+**
+** Function         BTM_RegBusyLevelNotif
+**
+** Description      This function is called to register a callback to receive
+**                  busy level change events.
+**
+** Returns          BTM_SUCCESS if successfully registered, otherwise error
+**
+*******************************************************************************/
+tBTM_STATUS BTM_RegBusyLevelNotif (tBTM_BL_CHANGE_CB *p_cb, UINT8 *p_level,
+                                   tBTM_BL_EVENT_MASK evt_mask)
+{
+    BTM_TRACE_DEBUG ("BTM_RegBusyLevelNotif");
+    if (p_level)
+        *p_level = btm_cb.busy_level;
+
+    btm_cb.bl_evt_mask = evt_mask;
+
+    if (!p_cb)
+        btm_cb.p_bl_changed_cb = NULL;
+    else if (btm_cb.p_bl_changed_cb)
+        return(BTM_BUSY);
+    else
+        btm_cb.p_bl_changed_cb = p_cb;
+
+    return(BTM_SUCCESS);
+}
+
+/*******************************************************************************
+**
+** Function         BTM_SetQoS
+**
+** Description      This function is called to setup QoS
+**
+** Returns          status of the operation
+**
+*******************************************************************************/
+tBTM_STATUS BTM_SetQoS (BD_ADDR bd, FLOW_SPEC *p_flow, tBTM_CMPL_CB *p_cb)
+{
+    tACL_CONN   *p = &btm_cb.acl_db[0];
+
+    BTM_TRACE_API ("BTM_SetQoS: BdAddr: %02x%02x%02x%02x%02x%02x",
+                    bd[0], bd[1], bd[2],
+                    bd[3], bd[4], bd[5]);
+
+    /* If someone already waiting on the version, do not allow another */
+    if (btm_cb.devcb.p_qos_setup_cmpl_cb)
+        return(BTM_BUSY);
+
+    if ( (p = btm_bda_to_acl(bd, BT_TRANSPORT_BR_EDR)) != NULL)
+    {
+        btm_cb.devcb.p_qos_setup_cmpl_cb = p_cb;
+        alarm_set_on_queue(btm_cb.devcb.qos_setup_timer,
+                           BTM_DEV_REPLY_TIMEOUT_MS,
+                           btm_qos_setup_timeout, NULL,
+                           btu_general_alarm_queue);
+
+        if (!btsnd_hcic_qos_setup (p->hci_handle, p_flow->qos_flags, p_flow->service_type,
+                                   p_flow->token_rate, p_flow->peak_bandwidth,
+                                   p_flow->latency,p_flow->delay_variation))
+        {
+            btm_cb.devcb.p_qos_setup_cmpl_cb = NULL;
+            alarm_cancel(btm_cb.devcb.qos_setup_timer);
+            return(BTM_NO_RESOURCES);
+        }
+        else
+            return(BTM_CMD_STARTED);
+    }
+
+    /* If here, no BD Addr found */
+    return(BTM_UNKNOWN_ADDR);
+}
+
+/*******************************************************************************
+**
+** Function         btm_qos_setup_timeout
+**
+** Description      Callback when QoS setup times out.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_qos_setup_timeout(UNUSED_ATTR void *data)
+{
+    tBTM_CMPL_CB  *p_cb = btm_cb.devcb.p_qos_setup_cmpl_cb;
+    btm_cb.devcb.p_qos_setup_cmpl_cb = NULL;
+    if (p_cb)
+        (*p_cb)((void *) NULL);
+}
+
+/*******************************************************************************
+**
+** Function         btm_qos_setup_complete
+**
+** Description      This function is called when the command complete message
+**                  is received from the HCI for the qos setup request.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_qos_setup_complete(UINT8 status, UINT16 handle, FLOW_SPEC *p_flow)
+{
+    tBTM_CMPL_CB            *p_cb = btm_cb.devcb.p_qos_setup_cmpl_cb;
+    tBTM_QOS_SETUP_CMPL     qossu;
+
+    BTM_TRACE_DEBUG("%s", __func__);
+    alarm_cancel(btm_cb.devcb.qos_setup_timer);
+    btm_cb.devcb.p_qos_setup_cmpl_cb = NULL;
+
+    /* If there was a registered callback, call it */
+    if (p_cb)
+    {
+        memset(&qossu, 0, sizeof(tBTM_QOS_SETUP_CMPL));
+        qossu.status = status;
+        qossu.handle = handle;
+        if (p_flow != NULL)
+        {
+            qossu.flow.qos_flags = p_flow->qos_flags;
+            qossu.flow.service_type = p_flow->service_type;
+            qossu.flow.token_rate = p_flow->token_rate;
+            qossu.flow.peak_bandwidth = p_flow->peak_bandwidth;
+            qossu.flow.latency = p_flow->latency;
+            qossu.flow.delay_variation = p_flow->delay_variation;
+        }
+        BTM_TRACE_DEBUG ("BTM: p_flow->delay_variation: 0x%02x",
+                          qossu.flow.delay_variation);
+        (*p_cb)(&qossu);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         BTM_ReadRSSI
+**
+** Description      This function is called to read the link policy settings.
+**                  The address of link policy results are returned in the callback.
+**                  (tBTM_RSSI_RESULTS)
+**
+** Returns          BTM_CMD_STARTED if successfully initiated or error code
+**
+*******************************************************************************/
+tBTM_STATUS BTM_ReadRSSI (BD_ADDR remote_bda, tBTM_CMPL_CB *p_cb)
+{
+    tACL_CONN   *p;
+    tBT_TRANSPORT transport = BT_TRANSPORT_BR_EDR;
+#if BLE_INCLUDED == TRUE
+    tBT_DEVICE_TYPE dev_type;
+    tBLE_ADDR_TYPE  addr_type;
+#endif
+    BTM_TRACE_API ("BTM_ReadRSSI: RemBdAddr: %02x%02x%02x%02x%02x%02x",
+                    remote_bda[0], remote_bda[1], remote_bda[2],
+                    remote_bda[3], remote_bda[4], remote_bda[5]);
+
+    /* If someone already waiting on the version, do not allow another */
+    if (btm_cb.devcb.p_rssi_cmpl_cb)
+        return(BTM_BUSY);
+
+#if BLE_INCLUDED == TRUE
+    BTM_ReadDevInfo(remote_bda, &dev_type, &addr_type);
+    if (dev_type == BT_DEVICE_TYPE_BLE)
+        transport = BT_TRANSPORT_LE;
+#endif
+
+    p = btm_bda_to_acl(remote_bda, transport);
+    if (p != (tACL_CONN *)NULL)
+    {
+        btm_cb.devcb.p_rssi_cmpl_cb = p_cb;
+        alarm_set_on_queue(btm_cb.devcb.read_rssi_timer,
+                           BTM_DEV_REPLY_TIMEOUT_MS, btm_read_rssi_timeout,
+                           NULL, btu_general_alarm_queue);
+
+        if (!btsnd_hcic_read_rssi (p->hci_handle))
+        {
+            btm_cb.devcb.p_rssi_cmpl_cb = NULL;
+            alarm_cancel(btm_cb.devcb.read_rssi_timer);
+            return(BTM_NO_RESOURCES);
+        }
+        else
+            return(BTM_CMD_STARTED);
+    }
+
+    /* If here, no BD Addr found */
+    return(BTM_UNKNOWN_ADDR);
+}
+
+/*******************************************************************************
+**
+** Function         BTM_ReadLinkQuality
+**
+** Description      This function is called to read the link qulaity.
+**                  The value of the link quality is returned in the callback.
+**                  (tBTM_LINK_QUALITY_RESULTS)
+**
+** Returns          BTM_CMD_STARTED if successfully initiated or error code
+**
+*******************************************************************************/
+tBTM_STATUS BTM_ReadLinkQuality (BD_ADDR remote_bda, tBTM_CMPL_CB *p_cb)
+{
+    tACL_CONN   *p;
+
+    BTM_TRACE_API ("BTM_ReadLinkQuality: RemBdAddr: %02x%02x%02x%02x%02x%02x",
+                    remote_bda[0], remote_bda[1], remote_bda[2],
+                    remote_bda[3], remote_bda[4], remote_bda[5]);
+
+    /* If someone already waiting on the version, do not allow another */
+    if (btm_cb.devcb.p_link_qual_cmpl_cb)
+        return(BTM_BUSY);
+
+    p = btm_bda_to_acl(remote_bda, BT_TRANSPORT_BR_EDR);
+    if (p != (tACL_CONN *)NULL)
+    {
+        btm_cb.devcb.p_link_qual_cmpl_cb = p_cb;
+        alarm_set_on_queue(btm_cb.devcb.read_link_quality_timer,
+                           BTM_DEV_REPLY_TIMEOUT_MS,
+                           btm_read_link_quality_timeout, NULL,
+                           btu_general_alarm_queue);
+
+        if (!btsnd_hcic_get_link_quality (p->hci_handle))
+        {
+            btm_cb.devcb.p_link_qual_cmpl_cb = NULL;
+            alarm_cancel(btm_cb.devcb.read_link_quality_timer);
+            return(BTM_NO_RESOURCES);
+        }
+        else
+            return(BTM_CMD_STARTED);
+    }
+
+    /* If here, no BD Addr found */
+    return(BTM_UNKNOWN_ADDR);
+}
+
+/*******************************************************************************
+**
+** Function         BTM_ReadTxPower
+**
+** Description      This function is called to read the current
+**                  TX power of the connection. The tx power level results
+**                  are returned in the callback.
+**                  (tBTM_RSSI_RESULTS)
+**
+** Returns          BTM_CMD_STARTED if successfully initiated or error code
+**
+*******************************************************************************/
+tBTM_STATUS BTM_ReadTxPower (BD_ADDR remote_bda, tBT_TRANSPORT transport, tBTM_CMPL_CB *p_cb)
+{
+    tACL_CONN   *p;
+    BOOLEAN     ret;
+#define BTM_READ_RSSI_TYPE_CUR  0x00
+#define BTM_READ_RSSI_TYPE_MAX  0X01
+
+    BTM_TRACE_API ("BTM_ReadTxPower: RemBdAddr: %02x%02x%02x%02x%02x%02x",
+                    remote_bda[0], remote_bda[1], remote_bda[2],
+                    remote_bda[3], remote_bda[4], remote_bda[5]);
+
+    /* If someone already waiting on the version, do not allow another */
+    if (btm_cb.devcb.p_tx_power_cmpl_cb)
+        return(BTM_BUSY);
+
+    p = btm_bda_to_acl(remote_bda, transport);
+    if (p != (tACL_CONN *)NULL)
+    {
+        btm_cb.devcb.p_tx_power_cmpl_cb = p_cb;
+        alarm_set_on_queue(btm_cb.devcb.read_tx_power_timer,
+                       BTM_DEV_REPLY_TIMEOUT_MS,
+                       btm_read_tx_power_timeout, NULL,
+                       btu_general_alarm_queue);
+
+#if BLE_INCLUDED == TRUE
+        if (p->transport == BT_TRANSPORT_LE)
+        {
+            memcpy(btm_cb.devcb.read_tx_pwr_addr, remote_bda, BD_ADDR_LEN);
+            ret = btsnd_hcic_ble_read_adv_chnl_tx_power();
+        }
+        else
+#endif
+        {
+            ret = btsnd_hcic_read_tx_power (p->hci_handle, BTM_READ_RSSI_TYPE_CUR);
+        }
+        if (!ret)
+        {
+            btm_cb.devcb.p_tx_power_cmpl_cb = NULL;
+            alarm_cancel(btm_cb.devcb.read_tx_power_timer);
+            return(BTM_NO_RESOURCES);
+        }
+        else
+            return(BTM_CMD_STARTED);
+    }
+
+    /* If here, no BD Addr found */
+    return (BTM_UNKNOWN_ADDR);
+}
+
+/*******************************************************************************
+**
+** Function         btm_read_tx_power_timeout
+**
+** Description      Callback when reading the tx power times out.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_read_tx_power_timeout(UNUSED_ATTR void *data)
+{
+    tBTM_CMPL_CB  *p_cb = btm_cb.devcb.p_tx_power_cmpl_cb;
+    btm_cb.devcb.p_tx_power_cmpl_cb = NULL;
+    if (p_cb)
+        (*p_cb)((void *) NULL);
+}
+
+/*******************************************************************************
+**
+** Function         btm_read_tx_power_complete
+**
+** Description      This function is called when the command complete message
+**                  is received from the HCI for the read tx power request.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_read_tx_power_complete(UINT8 *p, BOOLEAN is_ble)
+{
+    tBTM_CMPL_CB            *p_cb = btm_cb.devcb.p_tx_power_cmpl_cb;
+    tBTM_TX_POWER_RESULTS   results;
+    UINT16                   handle;
+    tACL_CONN               *p_acl_cb = &btm_cb.acl_db[0];
+    UINT16                   index;
+
+    BTM_TRACE_DEBUG("%s", __func__);
+    alarm_cancel(btm_cb.devcb.read_tx_power_timer);
+    btm_cb.devcb.p_tx_power_cmpl_cb = NULL;
+
+    /* If there was a registered callback, call it */
+    if (p_cb)
+    {
+        STREAM_TO_UINT8  (results.hci_status, p);
+
+        if (results.hci_status == HCI_SUCCESS)
+        {
+            results.status = BTM_SUCCESS;
+
+            if (!is_ble)
+            {
+                STREAM_TO_UINT16 (handle, p);
+                STREAM_TO_UINT8 (results.tx_power, p);
+
+                /* Search through the list of active channels for the correct BD Addr */
+                for (index = 0; index < MAX_L2CAP_LINKS; index++, p_acl_cb++)
+                {
+                    if ((p_acl_cb->in_use) && (handle == p_acl_cb->hci_handle))
+                    {
+                        memcpy (results.rem_bda, p_acl_cb->remote_addr, BD_ADDR_LEN);
+                        break;
+                    }
+                }
+            }
+#if BLE_INCLUDED == TRUE
+            else
+            {
+                STREAM_TO_UINT8 (results.tx_power, p);
+                memcpy(results.rem_bda, btm_cb.devcb.read_tx_pwr_addr, BD_ADDR_LEN);
+            }
+#endif
+            BTM_TRACE_DEBUG ("BTM TX power Complete: tx_power %d, hci status 0x%02x",
+                                  results.tx_power, results.hci_status);
+        }
+        else
+            results.status = BTM_ERR_PROCESSING;
+
+        (*p_cb)(&results);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btm_read_rssi_timeout
+**
+** Description      Callback when reading the RSSI times out.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_read_rssi_timeout(UNUSED_ATTR void *data)
+{
+    tBTM_CMPL_CB  *p_cb = btm_cb.devcb.p_rssi_cmpl_cb;
+    btm_cb.devcb.p_rssi_cmpl_cb = NULL;
+    if (p_cb)
+        (*p_cb)((void *) NULL);
+}
+
+/*******************************************************************************
+**
+** Function         btm_read_rssi_complete
+**
+** Description      This function is called when the command complete message
+**                  is received from the HCI for the read rssi request.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_read_rssi_complete (UINT8 *p)
+{
+    tBTM_CMPL_CB            *p_cb = btm_cb.devcb.p_rssi_cmpl_cb;
+    tBTM_RSSI_RESULTS        results;
+    UINT16                   handle;
+    tACL_CONN               *p_acl_cb = &btm_cb.acl_db[0];
+    UINT16                   index;
+
+    BTM_TRACE_DEBUG("%s", __func__);
+    alarm_cancel(btm_cb.devcb.read_rssi_timer);
+    btm_cb.devcb.p_rssi_cmpl_cb = NULL;
+
+    /* If there was a registered callback, call it */
+    if (p_cb)
+    {
+        STREAM_TO_UINT8  (results.hci_status, p);
+
+        if (results.hci_status == HCI_SUCCESS)
+        {
+            results.status = BTM_SUCCESS;
+
+            STREAM_TO_UINT16 (handle, p);
+
+            STREAM_TO_UINT8 (results.rssi, p);
+            BTM_TRACE_DEBUG ("BTM RSSI Complete: rssi %d, hci status 0x%02x",
+                              results.rssi, results.hci_status);
+
+            /* Search through the list of active channels for the correct BD Addr */
+            for (index = 0; index < MAX_L2CAP_LINKS; index++, p_acl_cb++)
+            {
+                if ((p_acl_cb->in_use) && (handle == p_acl_cb->hci_handle))
+                {
+                    memcpy (results.rem_bda, p_acl_cb->remote_addr, BD_ADDR_LEN);
+                    break;
+                }
+            }
+        }
+        else
+            results.status = BTM_ERR_PROCESSING;
+
+        (*p_cb)(&results);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btm_read_link_quality_timeout
+**
+** Description      Callback when reading the link quality times out.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_read_link_quality_timeout(UNUSED_ATTR void *data)
+{
+    tBTM_CMPL_CB  *p_cb = btm_cb.devcb.p_link_qual_cmpl_cb;
+    btm_cb.devcb.p_link_qual_cmpl_cb = NULL;
+    if (p_cb)
+        (*p_cb)((void *) NULL);
+}
+
+/*******************************************************************************
+**
+** Function         btm_read_link_quality_complete
+**
+** Description      This function is called when the command complete message
+**                  is received from the HCI for the read link quality.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_read_link_quality_complete(UINT8 *p)
+{
+    tBTM_CMPL_CB            *p_cb = btm_cb.devcb.p_link_qual_cmpl_cb;
+    tBTM_LINK_QUALITY_RESULTS results;
+    UINT16                   handle;
+    tACL_CONN               *p_acl_cb = &btm_cb.acl_db[0];
+    UINT16                   index;
+
+    BTM_TRACE_DEBUG("%s", __func__);
+    alarm_cancel(btm_cb.devcb.read_link_quality_timer);
+    btm_cb.devcb.p_link_qual_cmpl_cb = NULL;
+
+    /* If there was a registered callback, call it */
+    if (p_cb)
+    {
+        STREAM_TO_UINT8  (results.hci_status, p);
+
+        if (results.hci_status == HCI_SUCCESS)
+        {
+            results.status = BTM_SUCCESS;
+
+            STREAM_TO_UINT16 (handle, p);
+
+            STREAM_TO_UINT8 (results.link_quality, p);
+            BTM_TRACE_DEBUG ("BTM Link Quality Complete: Link Quality %d, hci status 0x%02x",
+                              results.link_quality, results.hci_status);
+
+            /* Search through the list of active channels for the correct BD Addr */
+            for (index = 0; index < MAX_L2CAP_LINKS; index++, p_acl_cb++)
+            {
+                if ((p_acl_cb->in_use) && (handle == p_acl_cb->hci_handle))
+                {
+                    memcpy (results.rem_bda, p_acl_cb->remote_addr, BD_ADDR_LEN);
+                    break;
+                }
+            }
+        }
+        else
+            results.status = BTM_ERR_PROCESSING;
+
+        (*p_cb)(&results);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btm_remove_acl
+**
+** Description      This function is called to disconnect an ACL connection
+**
+** Returns          BTM_SUCCESS if successfully initiated, otherwise BTM_NO_RESOURCES.
+**
+*******************************************************************************/
+tBTM_STATUS btm_remove_acl (BD_ADDR bd_addr, tBT_TRANSPORT transport)
+{
+    UINT16  hci_handle = BTM_GetHCIConnHandle(bd_addr, transport);
+    tBTM_STATUS status = BTM_SUCCESS;
+
+    BTM_TRACE_DEBUG ("btm_remove_acl");
+#if BTM_DISC_DURING_RS == TRUE
+    tBTM_SEC_DEV_REC  *p_dev_rec = btm_find_dev (bd_addr);
+
+    /* Role Switch is pending, postpone until completed */
+    if (p_dev_rec && (p_dev_rec->rs_disc_pending == BTM_SEC_RS_PENDING))
+    {
+        p_dev_rec->rs_disc_pending = BTM_SEC_DISC_PENDING;
+    }
+    else    /* otherwise can disconnect right away */
+#endif
+    {
+        if (hci_handle != 0xFFFF && p_dev_rec &&
+             p_dev_rec->sec_state!= BTM_SEC_STATE_DISCONNECTING)
+        {
+            if (!btsnd_hcic_disconnect (hci_handle, HCI_ERR_PEER_USER))
+                status = BTM_NO_RESOURCES;
+        }
+        else
+            status = BTM_UNKNOWN_ADDR;
+    }
+
+    return status;
+}
+
+
+/*******************************************************************************
+**
+** Function         BTM_SetTraceLevel
+**
+** Description      This function sets the trace level for BTM.  If called with
+**                  a value of 0xFF, it simply returns the current trace level.
+**
+** Returns          The new or current trace level
+**
+*******************************************************************************/
+UINT8 BTM_SetTraceLevel (UINT8 new_level)
+{
+    BTM_TRACE_DEBUG ("BTM_SetTraceLevel");
+    if (new_level != 0xFF)
+        btm_cb.trace_level = new_level;
+
+    return(btm_cb.trace_level);
+}
+
+/*******************************************************************************
+**
+** Function         btm_cont_rswitch
+**
+** Description      This function is called to continue processing an active
+**                  role switch. It first disables encryption if enabled and
+**                  EPR is not supported
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_cont_rswitch (tACL_CONN *p, tBTM_SEC_DEV_REC *p_dev_rec,
+                                     UINT8 hci_status)
+{
+    BOOLEAN sw_ok = TRUE;
+    BTM_TRACE_DEBUG ("btm_cont_rswitch");
+    /* Check to see if encryption needs to be turned off if pending
+       change of link key or role switch */
+    if (p->switch_role_state == BTM_ACL_SWKEY_STATE_MODE_CHANGE)
+    {
+        /* Must turn off Encryption first if necessary */
+        /* Some devices do not support switch or change of link key while encryption is on */
+        if (p_dev_rec != NULL && ((p_dev_rec->sec_flags & BTM_SEC_ENCRYPTED) != 0)
+            && !BTM_EPR_AVAILABLE(p))
+        {
+            if (btsnd_hcic_set_conn_encrypt (p->hci_handle, FALSE))
+            {
+                p->encrypt_state = BTM_ACL_ENCRYPT_STATE_ENCRYPT_OFF;
+                if (p->switch_role_state == BTM_ACL_SWKEY_STATE_MODE_CHANGE)
+                    p->switch_role_state = BTM_ACL_SWKEY_STATE_ENCRYPTION_OFF;
+            }
+            else
+            {
+                /* Error occurred; set states back to Idle */
+                if (p->switch_role_state == BTM_ACL_SWKEY_STATE_MODE_CHANGE)
+                    sw_ok = FALSE;
+            }
+        }
+        else    /* Encryption not used or EPR supported, continue with switch
+                   and/or change of link key */
+        {
+            if (p->switch_role_state == BTM_ACL_SWKEY_STATE_MODE_CHANGE)
+            {
+                p->switch_role_state = BTM_ACL_SWKEY_STATE_IN_PROGRESS;
+#if BTM_DISC_DURING_RS == TRUE
+                if (p_dev_rec)
+                    p_dev_rec->rs_disc_pending = BTM_SEC_RS_PENDING;
+#endif
+                sw_ok = btsnd_hcic_switch_role (p->remote_addr, (UINT8)!p->link_role);
+            }
+        }
+
+        if (!sw_ok)
+        {
+            p->switch_role_state = BTM_ACL_SWKEY_STATE_IDLE;
+            btm_acl_report_role_change(hci_status, p->remote_addr);
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btm_acl_resubmit_page
+**
+** Description      send pending page request
+**
+*******************************************************************************/
+void btm_acl_resubmit_page (void)
+{
+    tBTM_SEC_DEV_REC *p_dev_rec;
+    BT_HDR  *p_buf;
+    UINT8   *pp;
+    BD_ADDR bda;
+    BTM_TRACE_DEBUG ("btm_acl_resubmit_page");
+    /* If there were other page request schedule can start the next one */
+    if ((p_buf = (BT_HDR *)fixed_queue_try_dequeue(btm_cb.page_queue)) != NULL)
+    {
+        /* skip 3 (2 bytes opcode and 1 byte len) to get to the bd_addr
+         * for both create_conn and rmt_name */
+        pp = (UINT8 *)(p_buf + 1) + p_buf->offset + 3;
+
+        STREAM_TO_BDADDR (bda, pp);
+
+        p_dev_rec = btm_find_or_alloc_dev (bda);
+
+        memcpy (btm_cb.connecting_bda, p_dev_rec->bd_addr,   BD_ADDR_LEN);
+        memcpy (btm_cb.connecting_dc,  p_dev_rec->dev_class, DEV_CLASS_LEN);
+
+        btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID, p_buf);
+    }
+    else
+        btm_cb.paging = FALSE;
+}
+
+/*******************************************************************************
+**
+** Function         btm_acl_reset_paging
+**
+** Description      set paging to FALSE and free the page queue - called at hci_reset
+**
+*******************************************************************************/
+void  btm_acl_reset_paging (void)
+{
+    BT_HDR *p;
+    BTM_TRACE_DEBUG ("btm_acl_reset_paging");
+    /* If we sent reset we are definitely not paging any more */
+    while ((p = (BT_HDR *)fixed_queue_try_dequeue(btm_cb.page_queue)) != NULL)
+        osi_free(p);
+
+    btm_cb.paging = FALSE;
+}
+
+/*******************************************************************************
+**
+** Function         btm_acl_paging
+**
+** Description      send a paging command or queue it in btm_cb
+**
+*******************************************************************************/
+void  btm_acl_paging (BT_HDR *p, BD_ADDR bda)
+{
+    tBTM_SEC_DEV_REC *p_dev_rec;
+
+    BTM_TRACE_DEBUG ("btm_acl_paging discing:%d, paging:%d BDA: %06x%06x",
+                      btm_cb.discing, btm_cb.paging,
+                      (bda[0]<<16) + (bda[1]<<8) + bda[2], (bda[3]<<16) + (bda[4] << 8) + bda[5]);
+    if (btm_cb.discing)
+    {
+        btm_cb.paging = TRUE;
+        fixed_queue_enqueue(btm_cb.page_queue, p);
+    }
+    else
+    {
+        if (!BTM_ACL_IS_CONNECTED (bda))
+        {
+            BTM_TRACE_DEBUG ("connecting_bda: %06x%06x",
+                              (btm_cb.connecting_bda[0]<<16) + (btm_cb.connecting_bda[1]<<8) +
+                               btm_cb.connecting_bda[2],
+                              (btm_cb.connecting_bda[3]<<16) + (btm_cb.connecting_bda[4] << 8) +
+                               btm_cb.connecting_bda[5]);
+            if (btm_cb.paging &&
+                memcmp (bda, btm_cb.connecting_bda, BD_ADDR_LEN) != 0)
+            {
+                fixed_queue_enqueue(btm_cb.page_queue, p);
+            }
+            else
+            {
+                p_dev_rec = btm_find_or_alloc_dev (bda);
+                memcpy (btm_cb.connecting_bda, p_dev_rec->bd_addr,   BD_ADDR_LEN);
+                memcpy (btm_cb.connecting_dc,  p_dev_rec->dev_class, DEV_CLASS_LEN);
+
+                btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID, p);
+            }
+
+            btm_cb.paging = TRUE;
+        }
+        else /* ACL is already up */
+        {
+            btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID, p);
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btm_acl_notif_conn_collision
+**
+** Description      Send connection collision event to upper layer if registered
+**
+** Returns          TRUE if sent out to upper layer,
+**                  FALSE if no one needs the notification.
+**
+*******************************************************************************/
+BOOLEAN  btm_acl_notif_conn_collision (BD_ADDR bda)
+{
+    tBTM_BL_EVENT_DATA  evt_data;
+
+    /* Report possible collision to the upper layer. */
+    if (btm_cb.p_bl_changed_cb)
+    {
+        BTM_TRACE_DEBUG ("btm_acl_notif_conn_collision: RemBdAddr: %02x%02x%02x%02x%02x%02x",
+                          bda[0], bda[1], bda[2], bda[3], bda[4], bda[5]);
+
+        evt_data.event = BTM_BL_COLLISION_EVT;
+        evt_data.conn.p_bda = bda;
+
+#if BLE_INCLUDED == TRUE
+        evt_data.conn.transport = BT_TRANSPORT_BR_EDR;
+        evt_data.conn.handle = BTM_INVALID_HCI_HANDLE;
+#endif
+        (*btm_cb.p_bl_changed_cb)(&evt_data);
+        return TRUE;
+    }
+    else
+        return FALSE;
+}
+
+
+/*******************************************************************************
+**
+** Function         btm_acl_chk_peer_pkt_type_support
+**
+** Description      Check if peer supports requested packets
+**
+*******************************************************************************/
+void btm_acl_chk_peer_pkt_type_support (tACL_CONN *p, UINT16 *p_pkt_type)
+{
+    /* 3 and 5 slot packets? */
+    if (!HCI_3_SLOT_PACKETS_SUPPORTED(p->peer_lmp_features[HCI_EXT_FEATURES_PAGE_0]))
+        *p_pkt_type &= ~(BTM_ACL_PKT_TYPES_MASK_DH3 +BTM_ACL_PKT_TYPES_MASK_DM3);
+
+    if (!HCI_5_SLOT_PACKETS_SUPPORTED(p->peer_lmp_features[HCI_EXT_FEATURES_PAGE_0]))
+        *p_pkt_type &= ~(BTM_ACL_PKT_TYPES_MASK_DH5 + BTM_ACL_PKT_TYPES_MASK_DM5);
+
+    /* 2 and 3 MPS support? */
+    if (!HCI_EDR_ACL_2MPS_SUPPORTED(p->peer_lmp_features[HCI_EXT_FEATURES_PAGE_0]))
+        /* Not supported. Add 'not_supported' mask for all 2MPS packet types */
+        *p_pkt_type |= (BTM_ACL_PKT_TYPES_MASK_NO_2_DH1 + BTM_ACL_PKT_TYPES_MASK_NO_2_DH3 +
+                            BTM_ACL_PKT_TYPES_MASK_NO_2_DH5);
+
+    if (!HCI_EDR_ACL_3MPS_SUPPORTED(p->peer_lmp_features[HCI_EXT_FEATURES_PAGE_0]))
+        /* Not supported. Add 'not_supported' mask for all 3MPS packet types */
+        *p_pkt_type |= (BTM_ACL_PKT_TYPES_MASK_NO_3_DH1 + BTM_ACL_PKT_TYPES_MASK_NO_3_DH3 +
+                            BTM_ACL_PKT_TYPES_MASK_NO_3_DH5);
+
+    /* EDR 3 and 5 slot support? */
+    if (HCI_EDR_ACL_2MPS_SUPPORTED(p->peer_lmp_features[HCI_EXT_FEATURES_PAGE_0])
+     || HCI_EDR_ACL_3MPS_SUPPORTED(p->peer_lmp_features[HCI_EXT_FEATURES_PAGE_0]))
+    {
+        if (!HCI_3_SLOT_EDR_ACL_SUPPORTED(p->peer_lmp_features[HCI_EXT_FEATURES_PAGE_0]))
+            /* Not supported. Add 'not_supported' mask for all 3-slot EDR packet types */
+            *p_pkt_type |= (BTM_ACL_PKT_TYPES_MASK_NO_2_DH3 + BTM_ACL_PKT_TYPES_MASK_NO_3_DH3);
+
+        if (!HCI_5_SLOT_EDR_ACL_SUPPORTED(p->peer_lmp_features[HCI_EXT_FEATURES_PAGE_0]))
+            /* Not supported. Add 'not_supported' mask for all 5-slot EDR packet types */
+            *p_pkt_type |= (BTM_ACL_PKT_TYPES_MASK_NO_2_DH5 + BTM_ACL_PKT_TYPES_MASK_NO_3_DH5);
+    }
+}
diff --git a/rtkbt/code/bt/stack/btm/btm_ble.c b/rtkbt/code/bt/stack/btm/btm_ble.c
new file mode 100755
index 0000000..1dfaaf3
--- /dev/null
+++ b/rtkbt/code/bt/stack/btm/btm_ble.c
@@ -0,0 +1,2803 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains functions for BLE device control utilities, and LE
+ *  security functions.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_btm_ble"
+
+#include "bt_target.h"
+
+#if BLE_INCLUDED == TRUE
+
+#include <string.h>
+
+#include "bt_types.h"
+#include "bt_utils.h"
+#include "btm_ble_api.h"
+#include "btm_int.h"
+#include "btu.h"
+#include "device/include/controller.h"
+#include "gap_api.h"
+#include "hcimsgs.h"
+#include "l2c_int.h"
+#include "osi/include/log.h"
+#include "smp_api.h"
+
+#if SMP_INCLUDED == TRUE
+extern BOOLEAN aes_cipher_msg_auth_code(BT_OCTET16 key, UINT8 *input, UINT16 length,
+                                                 UINT16 tlen, UINT8 *p_signature);
+extern void smp_link_encrypted(BD_ADDR bda, UINT8 encr_enable);
+extern BOOLEAN smp_proc_ltk_request(BD_ADDR bda);
+#endif
+extern void gatt_notify_enc_cmpl(BD_ADDR bd_addr);
+/*******************************************************************************/
+/* External Function to be called by other modules                             */
+/*******************************************************************************/
+/********************************************************
+**
+** Function         BTM_SecAddBleDevice
+**
+** Description      Add/modify device.  This function will be normally called
+**                  during host startup to restore all required information
+**                  for a LE device stored in the NVRAM.
+**
+** Parameters:      bd_addr          - BD address of the peer
+**                  bd_name          - Name of the peer device.  NULL if unknown.
+**                  dev_type         - Remote device's device type.
+**                  addr_type        - LE device address type.
+**
+** Returns          TRUE if added OK, else FALSE
+**
+*******************************************************************************/
+BOOLEAN BTM_SecAddBleDevice (BD_ADDR bd_addr, BD_NAME bd_name, tBT_DEVICE_TYPE dev_type,
+                             tBLE_ADDR_TYPE addr_type)
+{
+    BTM_TRACE_DEBUG ("%s: dev_type=0x%x", __func__, dev_type);
+    tBTM_SEC_DEV_REC  *p_dev_rec = btm_find_dev(bd_addr);
+
+    if (!p_dev_rec) {
+        if (list_length(btm_cb.sec_dev_rec) > BTM_SEC_MAX_DEVICE_RECORDS) {
+            BTM_TRACE_ERROR("%s: %d max devices reached!", __func__, BTM_SEC_MAX_DEVICE_RECORDS);
+            return FALSE;
+        }
+
+        p_dev_rec = osi_calloc(sizeof(tBTM_SEC_DEV_REC));
+        list_append(btm_cb.sec_dev_rec, p_dev_rec);
+
+        memcpy(p_dev_rec->bd_addr, bd_addr, BD_ADDR_LEN);
+        p_dev_rec->hci_handle = BTM_GetHCIConnHandle(bd_addr, BT_TRANSPORT_BR_EDR);
+        p_dev_rec->ble_hci_handle = BTM_GetHCIConnHandle(bd_addr, BT_TRANSPORT_LE);
+
+        /* update conn params, use default value for background connection params */
+        p_dev_rec->conn_params.min_conn_int     = BTM_BLE_CONN_PARAM_UNDEF;
+        p_dev_rec->conn_params.max_conn_int     = BTM_BLE_CONN_PARAM_UNDEF;
+        p_dev_rec->conn_params.supervision_tout = BTM_BLE_CONN_PARAM_UNDEF;
+        p_dev_rec->conn_params.slave_latency    = BTM_BLE_CONN_PARAM_UNDEF;
+
+        BTM_TRACE_DEBUG("%s: Device added, handle=0x%x ", __func__, p_dev_rec->ble_hci_handle);
+    }
+
+    memset(p_dev_rec->sec_bd_name, 0, sizeof(tBTM_BD_NAME));
+
+    if (bd_name && bd_name[0])
+    {
+        p_dev_rec->sec_flags |= BTM_SEC_NAME_KNOWN;
+        strlcpy((char *)p_dev_rec->sec_bd_name,
+                (char *)bd_name, BTM_MAX_REM_BD_NAME_LEN);
+    }
+    p_dev_rec->device_type |= dev_type;
+    p_dev_rec->ble.ble_addr_type = addr_type;
+
+    memcpy(p_dev_rec->ble.pseudo_addr, bd_addr, BD_ADDR_LEN);
+    /* sync up with the Inq Data base*/
+    tBTM_INQ_INFO      *p_info = BTM_InqDbRead(bd_addr);
+    if (p_info)
+    {
+        p_info->results.ble_addr_type = p_dev_rec->ble.ble_addr_type ;
+        p_info->results.device_type = p_dev_rec->device_type;
+        BTM_TRACE_DEBUG("InqDb  device_type =0x%x  addr_type=0x%x",
+                         p_info->results.device_type, p_info->results.ble_addr_type);
+    }
+
+    return TRUE;
+}
+#ifdef BLUETOOTH_RTK
+/********************************************************
+**
+** Function         BTM_SecAddBleDevice
+**
+** Description      Add/modify device.  This function will be normally called
+**                  during host startup to restore all required information
+**                  for a LE device stored in the NVRAM.
+**
+** Parameters:      bd_addr          - BD address of the peer
+**                  bd_name          - Name of the peer device.  NULL if unknown.
+**                  dev_type         - Remote device's device type.
+**                  addr_type        - LE device address type.
+**
+** Returns          TRUE if added OK, else FALSE
+**
+*******************************************************************************/
+BOOLEAN BTM_SecAddBleDeviceExtraInfo (BD_ADDR bd_addr, BD_NAME bd_name, DEV_CLASS dev_class)
+{
+    tBTM_SEC_DEV_REC  *p_dev_rec;
+
+    BTM_TRACE_DEBUG ("BTM_SecAddBleDeviceExtraInfo");
+    p_dev_rec = btm_find_dev (bd_addr);
+
+    if (!p_dev_rec)
+    {
+        BTM_TRACE_DEBUG("Device not exist");
+        return FALSE;
+    }
+    else
+    {
+        BTM_TRACE_DEBUG("Device  exist");
+    }
+
+    memset(p_dev_rec->sec_bd_name, 0, sizeof(tBTM_BD_NAME));
+
+    if (bd_name && bd_name[0])
+    {
+        p_dev_rec->sec_flags |= BTM_SEC_NAME_KNOWN;
+        strlcpy((char *)p_dev_rec->sec_bd_name,
+                (char*)bd_name, BD_NAME_LEN);
+    }
+
+    BTM_TRACE_DEBUG ("sec_flags=0x%x",p_dev_rec->sec_flags);
+
+    if(dev_class) {
+        memcpy (p_dev_rec->dev_class, dev_class, DEV_CLASS_LEN);
+    }
+
+    return(TRUE);
+}
+
+#endif
+
+/*******************************************************************************
+**
+** Function         BTM_SecAddBleKey
+**
+** Description      Add/modify LE device information.  This function will be
+**                  normally called during host startup to restore all required
+**                  information stored in the NVRAM.
+**
+** Parameters:      bd_addr          - BD address of the peer
+**                  p_le_key         - LE key values.
+**                  key_type         - LE SMP key type.
+*
+** Returns          TRUE if added OK, else FALSE
+**
+*******************************************************************************/
+BOOLEAN BTM_SecAddBleKey (BD_ADDR bd_addr, tBTM_LE_KEY_VALUE *p_le_key, tBTM_LE_KEY_TYPE key_type)
+{
+#if SMP_INCLUDED == TRUE
+    tBTM_SEC_DEV_REC  *p_dev_rec;
+    BTM_TRACE_DEBUG ("BTM_SecAddBleKey");
+    p_dev_rec = btm_find_dev (bd_addr);
+    if (!p_dev_rec || !p_le_key ||
+        (key_type != BTM_LE_KEY_PENC && key_type != BTM_LE_KEY_PID &&
+         key_type != BTM_LE_KEY_PCSRK && key_type != BTM_LE_KEY_LENC &&
+         key_type != BTM_LE_KEY_LCSRK && key_type != BTM_LE_KEY_LID))
+    {
+        BTM_TRACE_WARNING ("BTM_SecAddBleKey()  Wrong Type, or No Device record \
+                        for bdaddr: %08x%04x, Type: %d",
+                            (bd_addr[0]<<24)+(bd_addr[1]<<16)+(bd_addr[2]<<8)+bd_addr[3],
+                            (bd_addr[4]<<8)+bd_addr[5], key_type);
+        return(FALSE);
+    }
+
+    BTM_TRACE_DEBUG ("BTM_SecAddLeKey()  BDA: %08x%04x, Type: 0x%02x",
+                      (bd_addr[0]<<24)+(bd_addr[1]<<16)+(bd_addr[2]<<8)+bd_addr[3],
+                      (bd_addr[4]<<8)+bd_addr[5], key_type);
+
+    btm_sec_save_le_key (bd_addr, key_type, p_le_key, FALSE);
+
+#if (BLE_PRIVACY_SPT == TRUE)
+    if (key_type == BTM_LE_KEY_PID || key_type == BTM_LE_KEY_LID)
+        btm_ble_resolving_list_load_dev (p_dev_rec);
+#endif
+
+#endif
+
+    return(TRUE);
+}
+
+/*******************************************************************************
+**
+** Function         BTM_BleLoadLocalKeys
+**
+** Description      Local local identity key, encryption root or sign counter.
+**
+** Parameters:      key_type: type of key, can be BTM_BLE_KEY_TYPE_ID, BTM_BLE_KEY_TYPE_ER
+**                            or BTM_BLE_KEY_TYPE_COUNTER.
+**                  p_key: pointer to the key.
+*
+** Returns          non2.
+**
+*******************************************************************************/
+void BTM_BleLoadLocalKeys(UINT8 key_type, tBTM_BLE_LOCAL_KEYS *p_key)
+{
+    tBTM_DEVCB *p_devcb = &btm_cb.devcb;
+    BTM_TRACE_DEBUG ("%s", __func__);
+    if (p_key != NULL)
+    {
+        switch (key_type)
+        {
+            case BTM_BLE_KEY_TYPE_ID:
+                memcpy(&p_devcb->id_keys, &p_key->id_keys, sizeof(tBTM_BLE_LOCAL_ID_KEYS));
+                break;
+
+            case BTM_BLE_KEY_TYPE_ER:
+                memcpy(p_devcb->ble_encryption_key_value, p_key->er, sizeof(BT_OCTET16));
+                break;
+
+            default:
+                BTM_TRACE_ERROR("unknow local key type: %d", key_type);
+                break;
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         BTM_GetDeviceEncRoot
+**
+** Description      This function is called to read the local device encryption
+**                  root.
+**
+** Returns          void
+**                  the local device ER is copied into ble_encr_key_value
+**
+*******************************************************************************/
+void BTM_GetDeviceEncRoot (BT_OCTET16 ble_encr_key_value)
+{
+    BTM_TRACE_DEBUG ("%s", __func__);
+    memcpy (ble_encr_key_value, btm_cb.devcb.ble_encryption_key_value, BT_OCTET16_LEN);
+}
+
+/*******************************************************************************
+**
+** Function         BTM_GetDeviceIDRoot
+**
+** Description      This function is called to read the local device identity
+**                  root.
+**
+** Returns          void
+**                  the local device IR is copied into irk
+**
+*******************************************************************************/
+void BTM_GetDeviceIDRoot (BT_OCTET16 irk)
+{
+    BTM_TRACE_DEBUG ("BTM_GetDeviceIDRoot ");
+
+    memcpy (irk, btm_cb.devcb.id_keys.irk, BT_OCTET16_LEN);
+}
+
+/*******************************************************************************
+**
+** Function         BTM_GetDeviceDHK
+**
+** Description      This function is called to read the local device DHK.
+**
+** Returns          void
+**                  the local device DHK is copied into dhk
+**
+*******************************************************************************/
+void BTM_GetDeviceDHK (BT_OCTET16 dhk)
+{
+    BTM_TRACE_DEBUG ("BTM_GetDeviceDHK");
+    memcpy (dhk, btm_cb.devcb.id_keys.dhk, BT_OCTET16_LEN);
+}
+
+/*******************************************************************************
+**
+** Function         BTM_ReadConnectionAddr
+**
+** Description      This function is called to get the local device address information
+**                  .
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTM_ReadConnectionAddr (BD_ADDR remote_bda, BD_ADDR local_conn_addr, tBLE_ADDR_TYPE *p_addr_type)
+{
+    tACL_CONN       *p_acl = btm_bda_to_acl(remote_bda, BT_TRANSPORT_LE);
+
+    if (p_acl == NULL)
+    {
+        BTM_TRACE_ERROR("No connection exist!");
+        return;
+    }
+    memcpy(local_conn_addr, p_acl->conn_addr, BD_ADDR_LEN);
+    * p_addr_type = p_acl->conn_addr_type;
+
+    BTM_TRACE_DEBUG ("BTM_ReadConnectionAddr address type: %d addr: 0x%02x",
+                    p_acl->conn_addr_type, p_acl->conn_addr[0]);
+}
+
+/*******************************************************************************
+**
+** Function         BTM_IsBleConnection
+**
+** Description      This function is called to check if the connection handle
+**                  for an LE link
+**
+** Returns          TRUE if connection is LE link, otherwise FALSE.
+**
+*******************************************************************************/
+BOOLEAN BTM_IsBleConnection (UINT16 conn_handle)
+{
+#if (BLE_INCLUDED == TRUE)
+    UINT8                xx;
+    tACL_CONN            *p;
+
+    BTM_TRACE_API ("BTM_IsBleConnection: conn_handle: %d", conn_handle);
+
+    xx = btm_handle_to_acl_index (conn_handle);
+    if (xx >= MAX_L2CAP_LINKS)
+        return FALSE;
+
+    p = &btm_cb.acl_db[xx];
+
+    return (p->transport == BT_TRANSPORT_LE);
+#else
+    return FALSE;
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         BTM_ReadRemoteConnectionAddr
+**
+** Description      This function is read the remote device address currently used
+**
+** Parameters     pseudo_addr: pseudo random address available
+**                conn_addr:connection address used
+**                p_addr_type : BD Address type, Public or Random of the address used
+**
+** Returns          BOOLEAN , TRUE if connection to remote device exists, else FALSE
+**
+*******************************************************************************/
+BOOLEAN BTM_ReadRemoteConnectionAddr(BD_ADDR pseudo_addr, BD_ADDR conn_addr,
+                                               tBLE_ADDR_TYPE *p_addr_type)
+{
+ BOOLEAN         st = TRUE;
+#if (BLE_PRIVACY_SPT == TRUE)
+    tACL_CONN       *p = btm_bda_to_acl (pseudo_addr, BT_TRANSPORT_LE);
+
+    if (p == NULL)
+    {
+        BTM_TRACE_ERROR("BTM_ReadRemoteConnectionAddr can not find connection"
+                        " with matching address");
+        return FALSE;
+    }
+
+    memcpy(conn_addr, p->active_remote_addr, BD_ADDR_LEN);
+    *p_addr_type = p->active_remote_addr_type;
+#else
+    tBTM_SEC_DEV_REC *p_dev_rec = btm_find_dev(pseudo_addr);
+
+    memcpy(conn_addr, pseudo_addr, BD_ADDR_LEN);
+    if (p_dev_rec != NULL)
+    {
+        *p_addr_type = p_dev_rec->ble.ble_addr_type;
+    }
+#endif
+    return st;
+
+}
+/*******************************************************************************
+**
+** Function         BTM_SecurityGrant
+**
+** Description      This function is called to grant security process.
+**
+** Parameters       bd_addr - peer device bd address.
+**                  res     - result of the operation BTM_SUCCESS if success.
+**                            Otherwise, BTM_REPEATED_ATTEMPTS is too many attempts.
+**
+** Returns          None
+**
+*******************************************************************************/
+void BTM_SecurityGrant(BD_ADDR bd_addr, UINT8 res)
+{
+#if SMP_INCLUDED == TRUE
+    tSMP_STATUS res_smp = (res == BTM_SUCCESS) ? SMP_SUCCESS : SMP_REPEATED_ATTEMPTS;
+    BTM_TRACE_DEBUG ("BTM_SecurityGrant");
+    SMP_SecurityGrant(bd_addr, res_smp);
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         BTM_BlePasskeyReply
+**
+** Description      This function is called after Security Manager submitted
+**                  passkey request to the application.
+**
+** Parameters:      bd_addr      - Address of the device for which passkey was requested
+**                  res          - result of the operation BTM_SUCCESS if success
+**                  key_len      - length in bytes of the Passkey
+**                  p_passkey        - pointer to array with the passkey
+**                  trusted_mask - bitwise OR of trusted services (array of UINT32)
+**
+*******************************************************************************/
+void BTM_BlePasskeyReply (BD_ADDR bd_addr, UINT8 res, UINT32 passkey)
+{
+#if SMP_INCLUDED == TRUE
+    tBTM_SEC_DEV_REC  *p_dev_rec = btm_find_dev (bd_addr);
+    tSMP_STATUS      res_smp = (res == BTM_SUCCESS) ? SMP_SUCCESS : SMP_PASSKEY_ENTRY_FAIL;
+
+    if (p_dev_rec == NULL)
+    {
+        BTM_TRACE_ERROR("Passkey reply to Unknown device");
+        return;
+    }
+
+    p_dev_rec->sec_flags   |= BTM_SEC_LE_AUTHENTICATED;
+    BTM_TRACE_DEBUG ("BTM_BlePasskeyReply");
+    SMP_PasskeyReply(bd_addr, res_smp, passkey);
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         BTM_BleConfirmReply
+**
+** Description      This function is called after Security Manager submitted
+**                  numeric comparison request to the application.
+**
+** Parameters:      bd_addr      - Address of the device with which numeric
+**                                 comparison was requested
+**                  res          - comparison result BTM_SUCCESS if success
+**
+*******************************************************************************/
+void BTM_BleConfirmReply (BD_ADDR bd_addr, UINT8 res)
+{
+    tBTM_SEC_DEV_REC  *p_dev_rec = btm_find_dev (bd_addr);
+    tSMP_STATUS      res_smp = (res == BTM_SUCCESS) ? SMP_SUCCESS : SMP_PASSKEY_ENTRY_FAIL;
+
+    if (p_dev_rec == NULL)
+    {
+        BTM_TRACE_ERROR("Passkey reply to Unknown device");
+        return;
+    }
+
+    p_dev_rec->sec_flags   |= BTM_SEC_LE_AUTHENTICATED;
+    BTM_TRACE_DEBUG ("%s", __func__);
+    SMP_ConfirmReply(bd_addr, res_smp);
+}
+
+/*******************************************************************************
+**
+** Function         BTM_BleOobDataReply
+**
+** Description      This function is called to provide the OOB data for
+**                  SMP in response to BTM_LE_OOB_REQ_EVT
+**
+** Parameters:      bd_addr     - Address of the peer device
+**                  res         - result of the operation SMP_SUCCESS if success
+**                  p_data      - oob data, depending on transport and capabilities.
+**                                Might be "Simple Pairing Randomizer", or
+**                                "Security Manager TK Value".
+**
+*******************************************************************************/
+void BTM_BleOobDataReply(BD_ADDR bd_addr, UINT8 res, UINT8 len, UINT8 *p_data)
+{
+#if SMP_INCLUDED == TRUE
+    tSMP_STATUS res_smp = (res == BTM_SUCCESS) ? SMP_SUCCESS : SMP_OOB_FAIL;
+    tBTM_SEC_DEV_REC  *p_dev_rec = btm_find_dev (bd_addr);
+
+    BTM_TRACE_DEBUG ("BTM_BleOobDataReply");
+
+    if (p_dev_rec == NULL)
+    {
+        BTM_TRACE_ERROR("BTM_BleOobDataReply() to Unknown device");
+        return;
+    }
+
+    p_dev_rec->sec_flags |= BTM_SEC_LE_AUTHENTICATED;
+    SMP_OobDataReply(bd_addr, res_smp, len, p_data);
+#endif
+}
+
+/******************************************************************************
+**
+** Function         BTM_BleSetConnScanParams
+**
+** Description      Set scan parameter used in BLE connection request
+**
+** Parameters:      scan_interval: scan interval
+**                  scan_window: scan window
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTM_BleSetConnScanParams (UINT32 scan_interval, UINT32 scan_window)
+{
+#if SMP_INCLUDED == TRUE
+    tBTM_BLE_CB *p_ble_cb = &btm_cb.ble_ctr_cb;
+    BOOLEAN     new_param = FALSE;
+
+    if (BTM_BLE_ISVALID_PARAM(scan_interval, BTM_BLE_SCAN_INT_MIN, BTM_BLE_SCAN_INT_MAX) &&
+        BTM_BLE_ISVALID_PARAM(scan_window, BTM_BLE_SCAN_WIN_MIN, BTM_BLE_SCAN_WIN_MAX))
+    {
+        if (p_ble_cb->scan_int != scan_interval)
+        {
+            p_ble_cb->scan_int = scan_interval;
+            new_param = TRUE;
+        }
+
+        if (p_ble_cb->scan_win != scan_window)
+        {
+            p_ble_cb->scan_win = scan_window;
+            new_param = TRUE;
+        }
+
+        if (new_param && p_ble_cb->conn_state == BLE_BG_CONN)
+        {
+            btm_ble_suspend_bg_conn();
+        }
+    }
+    else
+    {
+        BTM_TRACE_ERROR("Illegal Connection Scan Parameters");
+    }
+#endif
+}
+
+/********************************************************
+**
+** Function         BTM_BleSetPrefConnParams
+**
+** Description      Set a peripheral's preferred connection parameters
+**
+** Parameters:      bd_addr          - BD address of the peripheral
+**                  scan_interval: scan interval
+**                  scan_window: scan window
+**                  min_conn_int     - minimum preferred connection interval
+**                  max_conn_int     - maximum preferred connection interval
+**                  slave_latency    - preferred slave latency
+**                  supervision_tout - preferred supervision timeout
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTM_BleSetPrefConnParams (BD_ADDR bd_addr,
+                               UINT16 min_conn_int, UINT16 max_conn_int,
+                               UINT16 slave_latency, UINT16 supervision_tout)
+{
+    tBTM_SEC_DEV_REC  *p_dev_rec = btm_find_dev (bd_addr);
+
+    BTM_TRACE_API ("BTM_BleSetPrefConnParams min: %u  max: %u  latency: %u  \
+                    tout: %u",
+                    min_conn_int, max_conn_int, slave_latency, supervision_tout);
+
+    if (BTM_BLE_ISVALID_PARAM(min_conn_int, BTM_BLE_CONN_INT_MIN, BTM_BLE_CONN_INT_MAX) &&
+        BTM_BLE_ISVALID_PARAM(max_conn_int, BTM_BLE_CONN_INT_MIN, BTM_BLE_CONN_INT_MAX) &&
+        BTM_BLE_ISVALID_PARAM(supervision_tout, BTM_BLE_CONN_SUP_TOUT_MIN, BTM_BLE_CONN_SUP_TOUT_MAX) &&
+        (slave_latency <= BTM_BLE_CONN_LATENCY_MAX || slave_latency == BTM_BLE_CONN_PARAM_UNDEF))
+    {
+        if (p_dev_rec)
+        {
+            /* expect conn int and stout and slave latency to be updated all together */
+            if (min_conn_int != BTM_BLE_CONN_PARAM_UNDEF || max_conn_int != BTM_BLE_CONN_PARAM_UNDEF)
+            {
+                if (min_conn_int != BTM_BLE_CONN_PARAM_UNDEF)
+                    p_dev_rec->conn_params.min_conn_int = min_conn_int;
+                else
+                    p_dev_rec->conn_params.min_conn_int = max_conn_int;
+
+                if (max_conn_int != BTM_BLE_CONN_PARAM_UNDEF)
+                    p_dev_rec->conn_params.max_conn_int = max_conn_int;
+                else
+                    p_dev_rec->conn_params.max_conn_int = min_conn_int;
+
+                if (slave_latency != BTM_BLE_CONN_PARAM_UNDEF)
+                    p_dev_rec->conn_params.slave_latency = slave_latency;
+                else
+                    p_dev_rec->conn_params.slave_latency = BTM_BLE_CONN_SLAVE_LATENCY_DEF;
+
+                if (supervision_tout != BTM_BLE_CONN_PARAM_UNDEF)
+                    p_dev_rec->conn_params.supervision_tout = supervision_tout;
+                else
+                    p_dev_rec->conn_params.supervision_tout = BTM_BLE_CONN_TIMEOUT_DEF;
+
+            }
+
+        }
+        else
+        {
+            BTM_TRACE_ERROR("Unknown Device, setting rejected");
+        }
+    }
+    else
+    {
+        BTM_TRACE_ERROR("Illegal Connection Parameters");
+    }
+}
+
+/*******************************************************************************
+**
+** Function         BTM_ReadDevInfo
+**
+** Description      This function is called to read the device/address type
+**                  of BD address.
+**
+** Parameter        remote_bda: remote device address
+**                  p_dev_type: output parameter to read the device type.
+**                  p_addr_type: output parameter to read the address type.
+**
+*******************************************************************************/
+void BTM_ReadDevInfo (BD_ADDR remote_bda, tBT_DEVICE_TYPE *p_dev_type, tBLE_ADDR_TYPE *p_addr_type)
+{
+    tBTM_SEC_DEV_REC  *p_dev_rec = btm_find_dev (remote_bda);
+    tBTM_INQ_INFO     *p_inq_info = BTM_InqDbRead(remote_bda);
+
+    *p_addr_type = BLE_ADDR_PUBLIC;
+
+    if (!p_dev_rec)
+    {
+        *p_dev_type = BT_DEVICE_TYPE_BREDR;
+        /* Check with the BT manager if details about remote device are known */
+        if (p_inq_info != NULL)
+        {
+            *p_dev_type = p_inq_info->results.device_type ;
+            *p_addr_type = p_inq_info->results.ble_addr_type;
+        } else {
+            /* unknown device, assume BR/EDR */
+            BTM_TRACE_DEBUG ("btm_find_dev_type - unknown device, BR/EDR assumed");
+        }
+    }
+    else /* there is a security device record exisitng */
+    {
+        /* new inquiry result, overwrite device type in security device record */
+        if (p_inq_info)
+        {
+            p_dev_rec->device_type          = p_inq_info->results.device_type;
+            p_dev_rec->ble.ble_addr_type    = p_inq_info->results.ble_addr_type;
+        }
+        if (memcmp(p_dev_rec->bd_addr, remote_bda, BD_ADDR_LEN) == 0 &&
+            memcmp(p_dev_rec->ble.pseudo_addr, remote_bda, BD_ADDR_LEN) == 0)
+        {
+            *p_dev_type = p_dev_rec->device_type;
+            *p_addr_type = p_dev_rec->ble.ble_addr_type;
+        }
+        else if (memcmp(p_dev_rec->ble.pseudo_addr, remote_bda, BD_ADDR_LEN) == 0)
+        {
+            *p_dev_type = BT_DEVICE_TYPE_BLE;
+            *p_addr_type = p_dev_rec->ble.ble_addr_type;
+        }
+        else  /* matching static adddress only */
+        {
+            *p_dev_type = BT_DEVICE_TYPE_BREDR;
+            *p_addr_type = BLE_ADDR_PUBLIC;
+        }
+
+    }
+
+    BTM_TRACE_DEBUG ("btm_find_dev_type - device_type = %d addr_type = %d", *p_dev_type , *p_addr_type);
+}
+
+/*******************************************************************************
+**
+** Function         BTM_ReadConnectedTransportAddress
+**
+** Description      This function is called to read the paired device/address type of other device paired
+**                  corresponding to the BD_address
+**
+** Parameter        remote_bda: remote device address, carry out the transport address
+**                  transport: active transport
+**
+** Return           TRUE if an active link is identified; FALSE otherwise
+**
+*******************************************************************************/
+BOOLEAN BTM_ReadConnectedTransportAddress(BD_ADDR remote_bda, tBT_TRANSPORT transport)
+{
+    tBTM_SEC_DEV_REC *p_dev_rec = btm_find_dev(remote_bda);
+
+    /* if no device can be located, return */
+    if (p_dev_rec == NULL)
+        return FALSE;
+
+    if (transport == BT_TRANSPORT_BR_EDR)
+    {
+        if (btm_bda_to_acl(p_dev_rec->bd_addr, transport) != NULL)
+        {
+            memcpy(remote_bda, p_dev_rec->bd_addr, BD_ADDR_LEN);
+            return TRUE;
+        }
+        else if (p_dev_rec->device_type & BT_DEVICE_TYPE_BREDR)
+        {
+            memcpy(remote_bda, p_dev_rec->bd_addr, BD_ADDR_LEN);
+        }
+        else
+            memset(remote_bda, 0, BD_ADDR_LEN);
+        return FALSE;
+    }
+
+    if (transport == BT_TRANSPORT_LE)
+    {
+        memcpy(remote_bda, p_dev_rec->ble.pseudo_addr, BD_ADDR_LEN);
+        if (btm_bda_to_acl(p_dev_rec->ble.pseudo_addr, transport) != NULL)
+            return TRUE;
+        else
+            return FALSE;
+    }
+
+    return FALSE;
+}
+
+/*******************************************************************************
+**
+** Function         BTM_BleReceiverTest
+**
+** Description      This function is called to start the LE Receiver test
+**
+** Parameter       rx_freq - Frequency Range
+**               p_cmd_cmpl_cback - Command Complete callback
+**
+*******************************************************************************/
+void BTM_BleReceiverTest(UINT8 rx_freq, tBTM_CMPL_CB *p_cmd_cmpl_cback)
+{
+     btm_cb.devcb.p_le_test_cmd_cmpl_cb = p_cmd_cmpl_cback;
+
+     if (btsnd_hcic_ble_receiver_test(rx_freq) == FALSE)
+     {
+          BTM_TRACE_ERROR("%s: Unable to Trigger LE receiver test", __FUNCTION__);
+     }
+}
+
+/*******************************************************************************
+**
+** Function         BTM_BleTransmitterTest
+**
+** Description      This function is called to start the LE Transmitter test
+**
+** Parameter       tx_freq - Frequency Range
+**                       test_data_len - Length in bytes of payload data in each packet
+**                       packet_payload - Pattern to use in the payload
+**                       p_cmd_cmpl_cback - Command Complete callback
+**
+*******************************************************************************/
+void BTM_BleTransmitterTest(UINT8 tx_freq, UINT8 test_data_len,
+                                 UINT8 packet_payload, tBTM_CMPL_CB *p_cmd_cmpl_cback)
+{
+     btm_cb.devcb.p_le_test_cmd_cmpl_cb = p_cmd_cmpl_cback;
+     if (btsnd_hcic_ble_transmitter_test(tx_freq, test_data_len, packet_payload) == FALSE)
+     {
+          BTM_TRACE_ERROR("%s: Unable to Trigger LE transmitter test", __FUNCTION__);
+     }
+}
+
+/*******************************************************************************
+**
+** Function         BTM_BleTestEnd
+**
+** Description      This function is called to stop the in-progress TX or RX test
+**
+** Parameter       p_cmd_cmpl_cback - Command complete callback
+**
+*******************************************************************************/
+void BTM_BleTestEnd(tBTM_CMPL_CB *p_cmd_cmpl_cback)
+{
+     btm_cb.devcb.p_le_test_cmd_cmpl_cb = p_cmd_cmpl_cback;
+
+     if (btsnd_hcic_ble_test_end() == FALSE)
+     {
+          BTM_TRACE_ERROR("%s: Unable to End the LE TX/RX test", __FUNCTION__);
+     }
+}
+
+/*******************************************************************************
+** Internal Functions
+*******************************************************************************/
+void btm_ble_test_command_complete(UINT8 *p)
+{
+    tBTM_CMPL_CB   *p_cb = btm_cb.devcb.p_le_test_cmd_cmpl_cb;
+
+    btm_cb.devcb.p_le_test_cmd_cmpl_cb = NULL;
+
+    if (p_cb)
+    {
+        (*p_cb)(p);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         BTM_UseLeLink
+**
+** Description      This function is to select the underneath physical link to use.
+**
+** Returns          TRUE to use LE, FALSE use BR/EDR.
+**
+*******************************************************************************/
+BOOLEAN BTM_UseLeLink (BD_ADDR bd_addr)
+{
+    tACL_CONN         *p;
+    tBT_DEVICE_TYPE     dev_type;
+    tBLE_ADDR_TYPE      addr_type;
+    BOOLEAN             use_le = FALSE;
+
+    if ((p = btm_bda_to_acl(bd_addr, BT_TRANSPORT_BR_EDR)) != NULL)
+    {
+        return use_le;
+    }
+    else if ((p = btm_bda_to_acl(bd_addr, BT_TRANSPORT_LE)) != NULL)
+    {
+        use_le = TRUE;
+    }
+    else
+    {
+        BTM_ReadDevInfo(bd_addr, &dev_type, &addr_type);
+        use_le = (dev_type == BT_DEVICE_TYPE_BLE);
+    }
+    return use_le;
+}
+
+/*******************************************************************************
+**
+** Function         BTM_SetBleDataLength
+**
+** Description      This function is to set maximum BLE transmission packet size
+**
+** Returns          BTM_SUCCESS if success; otherwise failed.
+**
+*******************************************************************************/
+tBTM_STATUS BTM_SetBleDataLength(BD_ADDR bd_addr, UINT16 tx_pdu_length)
+{
+    tACL_CONN *p_acl = btm_bda_to_acl(bd_addr, BT_TRANSPORT_LE);
+    BTM_TRACE_DEBUG("%s: tx_pdu_length =%d", __FUNCTION__, tx_pdu_length);
+
+    if (!controller_get_interface()->supports_ble_packet_extension())
+    {
+        BTM_TRACE_ERROR("%s failed, request not supported", __FUNCTION__);
+        return BTM_ILLEGAL_VALUE;
+    }
+
+    if (!HCI_LE_DATA_LEN_EXT_SUPPORTED(p_acl->peer_le_features))
+    {
+        BTM_TRACE_ERROR("%s failed, peer does not support request", __FUNCTION__);
+        return BTM_ILLEGAL_VALUE;
+    }
+
+    if (p_acl != NULL)
+    {
+        if (tx_pdu_length > BTM_BLE_DATA_SIZE_MAX)
+            tx_pdu_length =  BTM_BLE_DATA_SIZE_MAX;
+        else if (tx_pdu_length < BTM_BLE_DATA_SIZE_MIN)
+            tx_pdu_length =  BTM_BLE_DATA_SIZE_MIN;
+
+        /* always set the TxTime to be max, as controller does not care for now */
+        btsnd_hcic_ble_set_data_length(p_acl->hci_handle, tx_pdu_length,
+                                            BTM_BLE_DATA_TX_TIME_MAX);
+
+        return BTM_SUCCESS;
+    }
+    else
+    {
+        BTM_TRACE_ERROR("%s: Wrong mode: no LE link exist or LE not supported",__FUNCTION__);
+        return BTM_WRONG_MODE;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_determine_security_act
+**
+** Description      This function checks the security of current LE link
+**                  and returns the appropriate action that needs to be
+**                  taken to achieve the required security.
+**
+** Parameter        is_originator - True if outgoing connection
+**                  bdaddr: remote device address
+**                  security_required: Security required for the service.
+**
+** Returns          The appropriate security action required.
+**
+*******************************************************************************/
+tBTM_SEC_ACTION btm_ble_determine_security_act(BOOLEAN is_originator, BD_ADDR bdaddr, UINT16 security_required)
+{
+    tBTM_LE_AUTH_REQ auth_req = 0x00;
+
+    if (is_originator)
+    {
+        if ((security_required & BTM_SEC_OUT_FLAGS) == 0 &&
+                (security_required & BTM_SEC_OUT_MITM) == 0)
+        {
+            BTM_TRACE_DEBUG ("%s No security required for outgoing connection", __func__);
+            return BTM_SEC_OK;
+        }
+
+        if (security_required & BTM_SEC_OUT_MITM)
+            auth_req |= BTM_LE_AUTH_REQ_MITM;
+    }
+    else
+    {
+        if ((security_required & BTM_SEC_IN_FLAGS) == 0&& (security_required & BTM_SEC_IN_MITM) == 0)
+        {
+            BTM_TRACE_DEBUG ("%s No security required for incoming connection", __func__);
+            return BTM_SEC_OK;
+        }
+
+        if (security_required & BTM_SEC_IN_MITM)
+            auth_req |= BTM_LE_AUTH_REQ_MITM;
+    }
+
+    tBTM_BLE_SEC_REQ_ACT ble_sec_act;
+    btm_ble_link_sec_check(bdaddr, auth_req, &ble_sec_act);
+
+    BTM_TRACE_DEBUG ("%s ble_sec_act %d", __func__ , ble_sec_act);
+
+    if (ble_sec_act == BTM_BLE_SEC_REQ_ACT_DISCARD)
+        return BTM_SEC_ENC_PENDING;
+
+    if (ble_sec_act == BTM_BLE_SEC_REQ_ACT_NONE)
+        return BTM_SEC_OK;
+
+    UINT8 sec_flag = 0;
+    BTM_GetSecurityFlagsByTransport(bdaddr, &sec_flag, BT_TRANSPORT_LE);
+
+    BOOLEAN is_link_encrypted = FALSE;
+    BOOLEAN is_key_mitm = FALSE;
+    if (sec_flag & (BTM_SEC_FLAG_ENCRYPTED| BTM_SEC_FLAG_LKEY_KNOWN))
+    {
+        if (sec_flag & BTM_SEC_FLAG_ENCRYPTED)
+            is_link_encrypted = TRUE;
+
+        if (sec_flag & BTM_SEC_FLAG_LKEY_AUTHED)
+            is_key_mitm = TRUE;
+    }
+
+    if (auth_req & BTM_LE_AUTH_REQ_MITM)
+    {
+        if (!is_key_mitm)
+        {
+            return BTM_SEC_ENCRYPT_MITM;
+        } else {
+            if (is_link_encrypted)
+                return BTM_SEC_OK;
+            else
+                return BTM_SEC_ENCRYPT;
+        }
+    } else {
+        if (is_link_encrypted)
+            return BTM_SEC_OK;
+        else
+            return BTM_SEC_ENCRYPT_NO_MITM;
+    }
+
+    return BTM_SEC_OK;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_start_sec_check
+**
+** Description      This function is to check and set the security required for
+**                  LE link for LE COC.
+**
+** Parameter        bdaddr: remote device address.
+**                  psm : PSM of the LE COC sevice.
+**                  is_originator: TRUE if outgoing connection.
+**                  p_callback : Pointer to the callback function.
+**                  p_ref_data : Pointer to be returned along with the callback.
+**
+** Returns          TRUE if link already meets the required security; otherwise FALSE.
+**
+*******************************************************************************/
+BOOLEAN btm_ble_start_sec_check(BD_ADDR bd_addr, UINT16 psm, BOOLEAN is_originator,
+                            tBTM_SEC_CALLBACK *p_callback, void *p_ref_data)
+{
+    /* Find the service record for the PSM */
+    tBTM_SEC_SERV_REC *p_serv_rec = btm_sec_find_first_serv (is_originator, psm);
+
+    /* If there is no application registered with this PSM do not allow connection */
+    if (!p_serv_rec)
+    {
+        BTM_TRACE_WARNING ("%s PSM: %d no application registerd", __func__, psm);
+        (*p_callback) (bd_addr, BT_TRANSPORT_LE, p_ref_data, BTM_MODE_UNSUPPORTED);
+        return FALSE;
+    }
+
+    tBTM_SEC_ACTION sec_act = btm_ble_determine_security_act(is_originator,
+                                  bd_addr, p_serv_rec->security_flags);
+
+    tBTM_BLE_SEC_ACT ble_sec_act = BTM_BLE_SEC_NONE;
+    BOOLEAN status = FALSE;
+
+    switch (sec_act)
+    {
+        case BTM_SEC_OK:
+            BTM_TRACE_DEBUG ("%s Security met", __func__);
+            p_callback(bd_addr, BT_TRANSPORT_LE, p_ref_data, BTM_SUCCESS);
+            status = TRUE;
+            break;
+
+        case BTM_SEC_ENCRYPT:
+            BTM_TRACE_DEBUG ("%s Encryption needs to be done", __func__);
+            ble_sec_act = BTM_BLE_SEC_ENCRYPT;
+            break;
+
+        case BTM_SEC_ENCRYPT_MITM:
+            BTM_TRACE_DEBUG ("%s Pairing with MITM needs to be done", __func__);
+            ble_sec_act = BTM_BLE_SEC_ENCRYPT_MITM;
+            break;
+
+        case BTM_SEC_ENCRYPT_NO_MITM:
+            BTM_TRACE_DEBUG ("%s Pairing with No MITM needs to be done", __func__);
+            ble_sec_act = BTM_BLE_SEC_ENCRYPT_NO_MITM;
+            break;
+
+        case BTM_SEC_ENC_PENDING:
+            BTM_TRACE_DEBUG ("%s Ecryption pending", __func__);
+            break;
+    }
+
+    if (ble_sec_act == BTM_BLE_SEC_NONE)
+        return status;
+
+    tL2C_LCB *p_lcb = l2cu_find_lcb_by_bd_addr(bd_addr, BT_TRANSPORT_LE);
+    p_lcb->sec_act = sec_act;
+    BTM_SetEncryption(bd_addr, BT_TRANSPORT_LE, p_callback, p_ref_data, ble_sec_act);
+
+    return FALSE;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_rand_enc_complete
+**
+** Description      This function is the callback functions for HCI_Rand command
+**                  and HCI_Encrypt command is completed.
+**                  This message is received from the HCI.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_ble_rand_enc_complete (UINT8 *p, UINT16 op_code, tBTM_RAND_ENC_CB *p_enc_cplt_cback)
+{
+    tBTM_RAND_ENC   params;
+    UINT8           *p_dest = params.param_buf;
+
+    BTM_TRACE_DEBUG ("btm_ble_rand_enc_complete");
+
+    memset(&params, 0, sizeof(tBTM_RAND_ENC));
+
+    /* If there was a callback address for vcs complete, call it */
+    if (p_enc_cplt_cback && p)
+    {
+        /* Pass paramters to the callback function */
+        STREAM_TO_UINT8(params.status, p); /* command status */
+
+        if (params.status == HCI_SUCCESS)
+        {
+            params.opcode = op_code;
+
+            if (op_code == HCI_BLE_RAND)
+                params.param_len = BT_OCTET8_LEN;
+            else
+                params.param_len = BT_OCTET16_LEN;
+
+            memcpy(p_dest, p, params.param_len);  /* Fetch return info from HCI event message */
+        }
+        if (p_enc_cplt_cback)
+            (*p_enc_cplt_cback)(&params);  /* Call the Encryption complete callback function */
+    }
+}
+
+    #if (SMP_INCLUDED == TRUE)
+
+/*******************************************************************************
+**
+** Function         btm_ble_get_enc_key_type
+**
+** Description      This function is to increment local sign counter
+** Returns         None
+**
+*******************************************************************************/
+void btm_ble_increment_sign_ctr(BD_ADDR bd_addr, BOOLEAN is_local )
+{
+    tBTM_SEC_DEV_REC *p_dev_rec;
+
+    BTM_TRACE_DEBUG ("btm_ble_increment_sign_ctr is_local=%d", is_local);
+
+    if ((p_dev_rec = btm_find_dev (bd_addr)) != NULL)
+    {
+        if (is_local)
+            p_dev_rec->ble.keys.local_counter++;
+        else
+            p_dev_rec->ble.keys.counter++;
+        BTM_TRACE_DEBUG ("is_local=%d local sign counter=%d peer sign counter=%d",
+                          is_local,
+                          p_dev_rec->ble.keys.local_counter,
+                          p_dev_rec->ble.keys.counter);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_get_enc_key_type
+**
+** Description      This function is to get the BLE key type that has been exchanged
+**                  in betweem local device and peer device.
+**
+** Returns          p_key_type: output parameter to carry the key type value.
+**
+*******************************************************************************/
+BOOLEAN btm_ble_get_enc_key_type(BD_ADDR bd_addr, UINT8 *p_key_types)
+{
+    tBTM_SEC_DEV_REC *p_dev_rec;
+
+    BTM_TRACE_DEBUG ("btm_ble_get_enc_key_type");
+
+    if ((p_dev_rec = btm_find_dev (bd_addr)) != NULL)
+    {
+        *p_key_types = p_dev_rec->ble.key_type;
+        return TRUE;
+    }
+    return FALSE;
+}
+
+/*******************************************************************************
+**
+** Function         btm_get_local_div
+**
+** Description      This function is called to read the local DIV
+**
+** Returns          TURE - if a valid DIV is availavle
+*******************************************************************************/
+BOOLEAN btm_get_local_div (BD_ADDR bd_addr, UINT16 *p_div)
+{
+    tBTM_SEC_DEV_REC   *p_dev_rec;
+    BOOLEAN            status = FALSE;
+    BTM_TRACE_DEBUG ("btm_get_local_div");
+
+    BTM_TRACE_DEBUG("bd_addr:%02x-%02x-%02x-%02x-%02x-%02x",
+                     bd_addr[0],bd_addr[1],
+                     bd_addr[2],bd_addr[3],
+                     bd_addr[4],bd_addr[5]);
+
+    *p_div = 0;
+    p_dev_rec = btm_find_dev (bd_addr);
+
+    if (p_dev_rec && p_dev_rec->ble.keys.div)
+    {
+        status = TRUE;
+        *p_div = p_dev_rec->ble.keys.div;
+    }
+    BTM_TRACE_DEBUG ("btm_get_local_div status=%d (1-OK) DIV=0x%x", status, *p_div);
+    return status;
+}
+
+/*******************************************************************************
+**
+** Function         btm_sec_save_le_key
+**
+** Description      This function is called by the SMP to update
+**                  an  BLE key.  SMP is internal, whereas all the keys shall
+**                  be sent to the application.  The function is also called
+**                  when application passes ble key stored in NVRAM to the btm_sec.
+**                  pass_to_application parameter is false in this case.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_sec_save_le_key(BD_ADDR bd_addr, tBTM_LE_KEY_TYPE key_type, tBTM_LE_KEY_VALUE *p_keys,
+                         BOOLEAN pass_to_application)
+{
+    tBTM_SEC_DEV_REC *p_rec;
+    tBTM_LE_EVT_DATA    cb_data;
+    UINT8 i;
+
+    BTM_TRACE_DEBUG ("btm_sec_save_le_key key_type=0x%x pass_to_application=%d",key_type, pass_to_application);
+    /* Store the updated key in the device database */
+
+    BTM_TRACE_DEBUG("bd_addr:%02x-%02x-%02x-%02x-%02x-%02x",
+                     bd_addr[0],bd_addr[1],
+                     bd_addr[2],bd_addr[3],
+                     bd_addr[4],bd_addr[5]);
+
+    if ((p_rec = btm_find_dev (bd_addr)) != NULL && (p_keys || key_type== BTM_LE_KEY_LID))
+    {
+        btm_ble_init_pseudo_addr (p_rec, bd_addr);
+
+        switch (key_type)
+        {
+            case BTM_LE_KEY_PENC:
+                memcpy(p_rec->ble.keys.pltk, p_keys->penc_key.ltk, BT_OCTET16_LEN);
+                memcpy(p_rec->ble.keys.rand, p_keys->penc_key.rand, BT_OCTET8_LEN);
+                p_rec->ble.keys.sec_level = p_keys->penc_key.sec_level;
+                p_rec->ble.keys.ediv = p_keys->penc_key.ediv;
+                p_rec->ble.keys.key_size = p_keys->penc_key.key_size;
+                p_rec->ble.key_type |= BTM_LE_KEY_PENC;
+                p_rec->sec_flags |= BTM_SEC_LE_LINK_KEY_KNOWN;
+                if (p_keys->penc_key.sec_level == SMP_SEC_AUTHENTICATED)
+                    p_rec->sec_flags |= BTM_SEC_LE_LINK_KEY_AUTHED;
+                else
+                    p_rec->sec_flags &= ~BTM_SEC_LE_LINK_KEY_AUTHED;
+                BTM_TRACE_DEBUG("BTM_LE_KEY_PENC key_type=0x%x sec_flags=0x%x sec_leve=0x%x",
+                                 p_rec->ble.key_type,
+                                 p_rec->sec_flags,
+                                 p_rec->ble.keys.sec_level);
+                break;
+
+            case BTM_LE_KEY_PID:
+                for (i=0; i<BT_OCTET16_LEN; i++)
+                {
+                    p_rec->ble.keys.irk[i] = p_keys->pid_key.irk[i];
+                }
+
+                 //memcpy( p_rec->ble.keys.irk, p_keys->pid_key, BT_OCTET16_LEN); todo will crash the system
+                memcpy(p_rec->ble.static_addr, p_keys->pid_key.static_addr, BD_ADDR_LEN);
+                p_rec->ble.static_addr_type = p_keys->pid_key.addr_type;
+                p_rec->ble.key_type |= BTM_LE_KEY_PID;
+                BTM_TRACE_DEBUG("BTM_LE_KEY_PID key_type=0x%x save peer IRK",  p_rec->ble.key_type);
+                 /* update device record address as static address */
+                memcpy(p_rec->bd_addr, p_keys->pid_key.static_addr, BD_ADDR_LEN);
+                /* combine DUMO device security record if needed */
+                btm_consolidate_dev(p_rec);
+                break;
+
+            case BTM_LE_KEY_PCSRK:
+                memcpy(p_rec->ble.keys.pcsrk, p_keys->pcsrk_key.csrk, BT_OCTET16_LEN);
+                p_rec->ble.keys.srk_sec_level = p_keys->pcsrk_key.sec_level;
+                p_rec->ble.keys.counter  = p_keys->pcsrk_key.counter;
+                p_rec->ble.key_type |= BTM_LE_KEY_PCSRK;
+                p_rec->sec_flags |=  BTM_SEC_LE_LINK_KEY_KNOWN;
+                if ( p_keys->pcsrk_key.sec_level== SMP_SEC_AUTHENTICATED)
+                    p_rec->sec_flags |= BTM_SEC_LE_LINK_KEY_AUTHED;
+                else
+                    p_rec->sec_flags &= ~BTM_SEC_LE_LINK_KEY_AUTHED;
+
+                BTM_TRACE_DEBUG("BTM_LE_KEY_PCSRK key_type=0x%x sec_flags=0x%x sec_level=0x%x peer_counter=%d",
+                                 p_rec->ble.key_type,
+                                 p_rec->sec_flags,
+                                 p_rec->ble.keys.srk_sec_level,
+                                 p_rec->ble.keys.counter );
+                break;
+
+            case BTM_LE_KEY_LENC:
+                memcpy(p_rec->ble.keys.lltk, p_keys->lenc_key.ltk, BT_OCTET16_LEN);
+                p_rec->ble.keys.div = p_keys->lenc_key.div; /* update DIV */
+                p_rec->ble.keys.sec_level = p_keys->lenc_key.sec_level;
+                p_rec->ble.keys.key_size = p_keys->lenc_key.key_size;
+                p_rec->ble.key_type |= BTM_LE_KEY_LENC;
+
+                BTM_TRACE_DEBUG("BTM_LE_KEY_LENC key_type=0x%x DIV=0x%x key_size=0x%x sec_level=0x%x",
+                                 p_rec->ble.key_type,
+                                 p_rec->ble.keys.div,
+                                 p_rec->ble.keys.key_size,
+                                 p_rec->ble.keys.sec_level );
+                break;
+
+            case BTM_LE_KEY_LCSRK:/* local CSRK has been delivered */
+                memcpy (p_rec->ble.keys.lcsrk, p_keys->lcsrk_key.csrk, BT_OCTET16_LEN);
+                p_rec->ble.keys.div = p_keys->lcsrk_key.div; /* update DIV */
+                p_rec->ble.keys.local_csrk_sec_level = p_keys->lcsrk_key.sec_level;
+                p_rec->ble.keys.local_counter  = p_keys->lcsrk_key.counter;
+                p_rec->ble.key_type |= BTM_LE_KEY_LCSRK;
+                BTM_TRACE_DEBUG("BTM_LE_KEY_LCSRK key_type=0x%x DIV=0x%x scrk_sec_level=0x%x local_counter=%d",
+                                 p_rec->ble.key_type,
+                                 p_rec->ble.keys.div,
+                                 p_rec->ble.keys.local_csrk_sec_level,
+                                 p_rec->ble.keys.local_counter );
+                break;
+
+            case BTM_LE_KEY_LID:
+               p_rec->ble.key_type |= BTM_LE_KEY_LID;
+               break;
+            default:
+                BTM_TRACE_WARNING("btm_sec_save_le_key (Bad key_type 0x%02x)", key_type);
+                return;
+        }
+
+        BTM_TRACE_DEBUG ("BLE key type 0x%02x updated for BDA: %08x%04x (btm_sec_save_le_key)", key_type,
+                          (bd_addr[0]<<24)+(bd_addr[1]<<16)+(bd_addr[2]<<8)+bd_addr[3],
+                          (bd_addr[4]<<8)+bd_addr[5]);
+
+        /* Notify the application that one of the BLE keys has been updated
+           If link key is in progress, it will get sent later.*/
+        if (pass_to_application && btm_cb.api.p_le_callback)
+        {
+            cb_data.key.p_key_value = p_keys;
+            cb_data.key.key_type = key_type;
+
+            (*btm_cb.api.p_le_callback) (BTM_LE_KEY_EVT, bd_addr, &cb_data);
+        }
+        return;
+    }
+
+    BTM_TRACE_WARNING ("BLE key type 0x%02x called for Unknown BDA or type: %08x%04x !! (btm_sec_save_le_key)", key_type,
+                        (bd_addr[0]<<24)+(bd_addr[1]<<16)+(bd_addr[2]<<8)+bd_addr[3],
+                        (bd_addr[4]<<8)+bd_addr[5]);
+
+    if (p_rec)
+    {
+        BTM_TRACE_DEBUG ("sec_flags=0x%x", p_rec->sec_flags);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_update_sec_key_size
+**
+** Description      update the current lin kencryption key size
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_ble_update_sec_key_size(BD_ADDR bd_addr, UINT8 enc_key_size)
+{
+    tBTM_SEC_DEV_REC *p_rec;
+
+    BTM_TRACE_DEBUG("btm_ble_update_sec_key_size enc_key_size = %d", enc_key_size);
+
+    if ((p_rec = btm_find_dev (bd_addr)) != NULL )
+    {
+        p_rec->enc_key_size = enc_key_size;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_read_sec_key_size
+**
+** Description      update the current lin kencryption key size
+**
+** Returns          void
+**
+*******************************************************************************/
+UINT8 btm_ble_read_sec_key_size(BD_ADDR bd_addr)
+{
+    tBTM_SEC_DEV_REC *p_rec;
+
+    if ((p_rec = btm_find_dev (bd_addr)) != NULL )
+    {
+        return p_rec->enc_key_size;
+    }
+    else
+        return 0;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_link_sec_check
+**
+** Description      Check BLE link security level match.
+**
+** Returns          TRUE: check is OK and the *p_sec_req_act contain the action
+**
+*******************************************************************************/
+void btm_ble_link_sec_check(BD_ADDR bd_addr, tBTM_LE_AUTH_REQ auth_req, tBTM_BLE_SEC_REQ_ACT *p_sec_req_act)
+{
+    tBTM_SEC_DEV_REC *p_dev_rec = btm_find_dev (bd_addr);
+    UINT8 req_sec_level = BTM_LE_SEC_NONE, cur_sec_level = BTM_LE_SEC_NONE;
+
+    BTM_TRACE_DEBUG ("btm_ble_link_sec_check auth_req =0x%x", auth_req);
+
+    if (p_dev_rec == NULL)
+    {
+        BTM_TRACE_ERROR ("btm_ble_link_sec_check received for unknown device");
+        return;
+    }
+
+    if (p_dev_rec->sec_state == BTM_SEC_STATE_ENCRYPTING ||
+        p_dev_rec->sec_state == BTM_SEC_STATE_AUTHENTICATING)
+    {
+        /* race condition: discard the security request while master is encrypting the link */
+        *p_sec_req_act = BTM_BLE_SEC_REQ_ACT_DISCARD;
+    }
+    else
+    {
+        req_sec_level = BTM_LE_SEC_UNAUTHENTICATE;
+        if (auth_req & BTM_LE_AUTH_REQ_MITM)
+        {
+            req_sec_level = BTM_LE_SEC_AUTHENTICATED;
+        }
+
+        BTM_TRACE_DEBUG ("dev_rec sec_flags=0x%x", p_dev_rec->sec_flags);
+
+        /* currently encrpted  */
+        if (p_dev_rec->sec_flags & BTM_SEC_LE_ENCRYPTED)
+        {
+            if (p_dev_rec->sec_flags & BTM_SEC_LE_AUTHENTICATED)
+                cur_sec_level = BTM_LE_SEC_AUTHENTICATED;
+            else
+                cur_sec_level = BTM_LE_SEC_UNAUTHENTICATE;
+        }
+        else /* unencrypted link */
+        {
+            /* if bonded, get the key security level */
+            if (p_dev_rec->ble.key_type & BTM_LE_KEY_PENC)
+                cur_sec_level = p_dev_rec->ble.keys.sec_level;
+            else
+                cur_sec_level = BTM_LE_SEC_NONE;
+        }
+
+        if (cur_sec_level >= req_sec_level)
+        {
+            /* To avoid re-encryption on an encrypted link for an equal condition encryption */
+            *p_sec_req_act = BTM_BLE_SEC_REQ_ACT_ENCRYPT;
+        }
+        else
+        {
+            *p_sec_req_act = BTM_BLE_SEC_REQ_ACT_PAIR; /* start the pariring process to upgrade the keys*/
+        }
+    }
+
+    BTM_TRACE_DEBUG("cur_sec_level=%d req_sec_level=%d sec_req_act=%d",
+                     cur_sec_level,
+                     req_sec_level,
+                     *p_sec_req_act);
+
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_set_encryption
+**
+** Description      This function is called to ensure that LE connection is
+**                  encrypted.  Should be called only on an open connection.
+**                  Typically only needed for connections that first want to
+**                  bring up unencrypted links, then later encrypt them.
+**
+** Returns          void
+**                  the local device ER is copied into er
+**
+*******************************************************************************/
+tBTM_STATUS btm_ble_set_encryption (BD_ADDR bd_addr, tBTM_BLE_SEC_ACT sec_act, UINT8 link_role)
+{
+    tBTM_STATUS         cmd = BTM_NO_RESOURCES;
+    tBTM_SEC_DEV_REC    *p_rec = btm_find_dev (bd_addr);
+    tBTM_BLE_SEC_REQ_ACT sec_req_act;
+    tBTM_LE_AUTH_REQ    auth_req;
+
+    if (p_rec == NULL)
+    {
+        BTM_TRACE_WARNING ("btm_ble_set_encryption (NULL device record!! sec_act=0x%x", sec_act);
+        return(BTM_WRONG_MODE);
+    }
+
+    BTM_TRACE_DEBUG ("btm_ble_set_encryption sec_act=0x%x role_master=%d", sec_act, p_rec->role_master);
+
+    if (sec_act == BTM_BLE_SEC_ENCRYPT_MITM)
+    {
+        p_rec->security_required |= BTM_SEC_IN_MITM;
+    }
+
+    switch (sec_act)
+    {
+        case BTM_BLE_SEC_ENCRYPT:
+            if (link_role == BTM_ROLE_MASTER)
+            {
+                    /* start link layer encryption using the security info stored */
+                cmd = btm_ble_start_encrypt(bd_addr, FALSE, NULL);
+                break;
+            }
+            /* if salve role then fall through to call SMP_Pair below which will send a
+               sec_request to request the master to encrypt the link */
+        case BTM_BLE_SEC_ENCRYPT_NO_MITM:
+        case BTM_BLE_SEC_ENCRYPT_MITM:
+            auth_req = (sec_act == BTM_BLE_SEC_ENCRYPT_NO_MITM)
+                       ? SMP_AUTH_GEN_BOND : (SMP_AUTH_GEN_BOND | SMP_AUTH_YN_BIT);
+            btm_ble_link_sec_check (bd_addr, auth_req, &sec_req_act);
+            if(sec_req_act == BTM_BLE_SEC_REQ_ACT_NONE || sec_req_act == BTM_BLE_SEC_REQ_ACT_DISCARD)
+            {
+                BTM_TRACE_DEBUG("%s, no action needed. Ignore", __func__);
+                cmd = BTM_SUCCESS;
+                break;
+            }
+            if (link_role == BTM_ROLE_MASTER)
+            {
+
+                if (sec_req_act == BTM_BLE_SEC_REQ_ACT_ENCRYPT)
+                {
+                   cmd = btm_ble_start_encrypt(bd_addr, FALSE, NULL);
+                   break;
+                }
+            }
+
+            if (SMP_Pair(bd_addr) == SMP_STARTED)
+            {
+                cmd = BTM_CMD_STARTED;
+                p_rec->sec_state = BTM_SEC_STATE_AUTHENTICATING;
+            }
+            break;
+
+        default:
+            cmd = BTM_WRONG_MODE;
+            break;
+    }
+    return cmd;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_ltk_request
+**
+** Description      This function is called when encryption request is received
+**                  on a slave device.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_ble_ltk_request(UINT16 handle, UINT8 rand[8], UINT16 ediv)
+{
+    tBTM_CB *p_cb = &btm_cb;
+    tBTM_SEC_DEV_REC *p_dev_rec = btm_find_dev_by_handle (handle);
+    BT_OCTET8 dummy_stk = {0};
+
+    BTM_TRACE_DEBUG ("btm_ble_ltk_request");
+
+    p_cb->ediv = ediv;
+
+    memcpy(p_cb->enc_rand, rand, BT_OCTET8_LEN);
+
+    if (p_dev_rec != NULL)
+    {
+        if (!smp_proc_ltk_request(p_dev_rec->bd_addr))
+            btm_ble_ltk_request_reply(p_dev_rec->bd_addr, FALSE, dummy_stk);
+    }
+
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_start_encrypt
+**
+** Description      This function is called to start LE encryption.
+**
+**
+** Returns          BTM_SUCCESS if encryption was started successfully
+**
+*******************************************************************************/
+tBTM_STATUS btm_ble_start_encrypt(BD_ADDR bda, BOOLEAN use_stk, BT_OCTET16 stk)
+{
+    tBTM_CB *p_cb = &btm_cb;
+    tBTM_SEC_DEV_REC    *p_rec = btm_find_dev (bda);
+    BT_OCTET8    dummy_rand = {0};
+    tBTM_STATUS  rt = BTM_NO_RESOURCES;
+
+    BTM_TRACE_DEBUG ("btm_ble_start_encrypt");
+
+    if (!p_rec )
+    {
+        BTM_TRACE_ERROR("Link is not active, can not encrypt!");
+        return BTM_WRONG_MODE;
+    }
+
+    if (p_rec->sec_state == BTM_SEC_STATE_ENCRYPTING)
+    {
+        BTM_TRACE_WARNING("Link Encryption is active, Busy!");
+        return BTM_BUSY;
+    }
+
+    p_cb->enc_handle = p_rec->ble_hci_handle;
+
+    if (use_stk)
+    {
+        if (btsnd_hcic_ble_start_enc(p_rec->ble_hci_handle, dummy_rand, 0, stk))
+            rt = BTM_CMD_STARTED;
+    }
+    else if (p_rec->ble.key_type & BTM_LE_KEY_PENC)
+    {
+        if (btsnd_hcic_ble_start_enc(p_rec->ble_hci_handle, p_rec->ble.keys.rand,
+                                     p_rec->ble.keys.ediv, p_rec->ble.keys.pltk))
+            rt = BTM_CMD_STARTED;
+    }
+    else
+    {
+        BTM_TRACE_ERROR("No key available to encrypt the link");
+    }
+    if (rt == BTM_CMD_STARTED)
+    {
+        if (p_rec->sec_state == BTM_SEC_STATE_IDLE)
+            p_rec->sec_state = BTM_SEC_STATE_ENCRYPTING;
+    }
+
+    return rt;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_link_encrypted
+**
+** Description      This function is called when LE link encrption status is changed.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_ble_link_encrypted(BD_ADDR bd_addr, UINT8 encr_enable)
+{
+    tBTM_SEC_DEV_REC    *p_dev_rec = btm_find_dev (bd_addr);
+    BOOLEAN             enc_cback;
+
+    if (!p_dev_rec)
+    {
+        BTM_TRACE_WARNING ("btm_ble_link_encrypted (No Device Found!) encr_enable=%d", encr_enable);
+        return;
+    }
+
+    BTM_TRACE_DEBUG ("btm_ble_link_encrypted encr_enable=%d", encr_enable);
+
+    enc_cback = (p_dev_rec->sec_state == BTM_SEC_STATE_ENCRYPTING);
+
+    smp_link_encrypted(bd_addr, encr_enable);
+
+    BTM_TRACE_DEBUG(" p_dev_rec->sec_flags=0x%x", p_dev_rec->sec_flags);
+
+    if (encr_enable && p_dev_rec->enc_key_size == 0)
+        p_dev_rec->enc_key_size = p_dev_rec->ble.keys.key_size;
+
+    p_dev_rec->sec_state = BTM_SEC_STATE_IDLE;
+    if (p_dev_rec->p_callback && enc_cback)
+    {
+        if (encr_enable)
+            btm_sec_dev_rec_cback_event(p_dev_rec, BTM_SUCCESS, TRUE);
+        else if (p_dev_rec->role_master)
+            btm_sec_dev_rec_cback_event(p_dev_rec, BTM_ERR_PROCESSING, TRUE);
+
+    }
+    /* to notify GATT to send data if any request is pending */
+    gatt_notify_enc_cmpl(p_dev_rec->ble.pseudo_addr);
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_ltk_request_reply
+**
+** Description      This function is called to send a LTK request reply on a slave
+**                  device.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_ble_ltk_request_reply(BD_ADDR bda,  BOOLEAN use_stk, BT_OCTET16 stk)
+{
+    tBTM_SEC_DEV_REC    *p_rec = btm_find_dev (bda);
+    tBTM_CB *p_cb = &btm_cb;
+
+    if (p_rec == NULL)
+    {
+        BTM_TRACE_ERROR("btm_ble_ltk_request_reply received for unknown device");
+        return;
+    }
+
+    BTM_TRACE_DEBUG ("btm_ble_ltk_request_reply");
+    p_cb->enc_handle = p_rec->ble_hci_handle;
+    p_cb->key_size = p_rec->ble.keys.key_size;
+
+    BTM_TRACE_ERROR("key size = %d", p_rec->ble.keys.key_size);
+    if (use_stk)
+    {
+        btsnd_hcic_ble_ltk_req_reply(btm_cb.enc_handle, stk);
+    }
+    else /* calculate LTK using peer device  */
+    {
+        if (p_rec->ble.key_type & BTM_LE_KEY_LENC)
+            btsnd_hcic_ble_ltk_req_reply(btm_cb.enc_handle, p_rec->ble.keys.lltk);
+        else
+            btsnd_hcic_ble_ltk_req_neg_reply(btm_cb.enc_handle);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_io_capabilities_req
+**
+** Description      This function is called to handle SMP get IO capability request.
+**
+** Returns          void
+**
+*******************************************************************************/
+UINT8 btm_ble_io_capabilities_req(tBTM_SEC_DEV_REC *p_dev_rec, tBTM_LE_IO_REQ *p_data)
+{
+    UINT8           callback_rc = BTM_SUCCESS;
+    BTM_TRACE_DEBUG ("btm_ble_io_capabilities_req");
+    if (btm_cb.api.p_le_callback)
+    {
+        /* the callback function implementation may change the IO capability... */
+        callback_rc = (*btm_cb.api.p_le_callback) (BTM_LE_IO_REQ_EVT, p_dev_rec->bd_addr, (tBTM_LE_EVT_DATA *)p_data);
+    }
+    if ((callback_rc == BTM_SUCCESS) || (BTM_OOB_UNKNOWN != p_data->oob_data))
+    {
+#if BTM_BLE_CONFORMANCE_TESTING == TRUE
+        if (btm_cb.devcb.keep_rfu_in_auth_req)
+        {
+            BTM_TRACE_DEBUG ("btm_ble_io_capabilities_req keep_rfu_in_auth_req = %u",
+                btm_cb.devcb.keep_rfu_in_auth_req);
+            p_data->auth_req &= BTM_LE_AUTH_REQ_MASK_KEEP_RFU;
+            btm_cb.devcb.keep_rfu_in_auth_req = FALSE;
+        }
+        else
+        {   /* default */
+            p_data->auth_req &= BTM_LE_AUTH_REQ_MASK;
+        }
+#else
+        p_data->auth_req &= BTM_LE_AUTH_REQ_MASK;
+#endif
+
+        BTM_TRACE_DEBUG ("btm_ble_io_capabilities_req 1: p_dev_rec->security_required = %d auth_req:%d",
+                          p_dev_rec->security_required, p_data->auth_req);
+        BTM_TRACE_DEBUG ("btm_ble_io_capabilities_req 2: i_keys=0x%x r_keys=0x%x (bit 0-LTK 1-IRK 2-CSRK)",
+                          p_data->init_keys,
+                          p_data->resp_keys);
+
+        /* if authentication requires MITM protection, put on the mask */
+        if (p_dev_rec->security_required & BTM_SEC_IN_MITM)
+            p_data->auth_req |= BTM_LE_AUTH_REQ_MITM;
+
+        if (!(p_data->auth_req & SMP_AUTH_BOND))
+        {
+            BTM_TRACE_DEBUG("Non bonding: No keys should be exchanged");
+            p_data->init_keys = 0;
+            p_data->resp_keys = 0;
+        }
+
+        BTM_TRACE_DEBUG ("btm_ble_io_capabilities_req 3: auth_req:%d", p_data->auth_req);
+        BTM_TRACE_DEBUG ("btm_ble_io_capabilities_req 4: i_keys=0x%x r_keys=0x%x",
+                          p_data->init_keys,
+                          p_data->resp_keys);
+
+        BTM_TRACE_DEBUG ("btm_ble_io_capabilities_req 5: p_data->io_cap = %d auth_req:%d",
+                          p_data->io_cap, p_data->auth_req);
+
+        /* remove MITM protection requirement if IO cap does not allow it */
+        if ((p_data->io_cap == BTM_IO_CAP_NONE) && p_data->oob_data == SMP_OOB_NONE)
+            p_data->auth_req &= ~BTM_LE_AUTH_REQ_MITM;
+
+        if (!(p_data->auth_req & SMP_SC_SUPPORT_BIT))
+        {
+            /* if Secure Connections are not supported then remove LK derivation,
+            ** and keypress notifications.
+            */
+            BTM_TRACE_DEBUG("%s-SC not supported -> No LK derivation, no keypress notifications",
+                            __func__);
+            p_data->auth_req &= ~SMP_KP_SUPPORT_BIT;
+            p_data->init_keys &= ~SMP_SEC_KEY_TYPE_LK;
+            p_data->resp_keys &= ~SMP_SEC_KEY_TYPE_LK;
+        }
+
+        BTM_TRACE_DEBUG ("btm_ble_io_capabilities_req 6: IO_CAP:%d oob_data:%d auth_req:0x%02x",
+                          p_data->io_cap, p_data->oob_data, p_data->auth_req);
+    }
+    return callback_rc;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_br_keys_req
+**
+** Description      This function is called to handle SMP request for keys sent
+**                  over BR/EDR.
+**
+** Returns          void
+**
+*******************************************************************************/
+UINT8 btm_ble_br_keys_req(tBTM_SEC_DEV_REC *p_dev_rec, tBTM_LE_IO_REQ *p_data)
+{
+    UINT8           callback_rc = BTM_SUCCESS;
+    BTM_TRACE_DEBUG ("%s", __func__);
+    if (btm_cb.api.p_le_callback)
+    {
+        /* the callback function implementation may change the IO capability... */
+        callback_rc = (*btm_cb.api.p_le_callback) (BTM_LE_IO_REQ_EVT, p_dev_rec->bd_addr,
+                                                  (tBTM_LE_EVT_DATA *)p_data);
+    }
+
+    return callback_rc;
+}
+
+#if (BLE_PRIVACY_SPT == TRUE )
+/*******************************************************************************
+**
+** Function         btm_ble_resolve_random_addr_on_conn_cmpl
+**
+** Description      resolve random address complete on connection complete event.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btm_ble_resolve_random_addr_on_conn_cmpl(void * p_rec, void *p_data)
+{
+    UINT8   *p = (UINT8 *)p_data;
+    tBTM_SEC_DEV_REC    *match_rec = (tBTM_SEC_DEV_REC *) p_rec;
+    UINT8       role, bda_type;
+    UINT16      handle;
+    BD_ADDR     bda;
+    UINT16      conn_interval, conn_latency, conn_timeout;
+    BOOLEAN     match = FALSE;
+
+    ++p;
+    STREAM_TO_UINT16   (handle, p);
+    STREAM_TO_UINT8    (role, p);
+    STREAM_TO_UINT8    (bda_type, p);
+    STREAM_TO_BDADDR   (bda, p);
+    STREAM_TO_UINT16   (conn_interval, p);
+    STREAM_TO_UINT16   (conn_latency, p);
+    STREAM_TO_UINT16   (conn_timeout, p);
+
+    handle = HCID_GET_HANDLE (handle);
+
+    BTM_TRACE_EVENT ("%s", __func__);
+
+    if (match_rec)
+    {
+        LOG_INFO(LOG_TAG, "%s matched and resolved random address", __func__);
+        match = TRUE;
+        match_rec->ble.active_addr_type = BTM_BLE_ADDR_RRA;
+        memcpy(match_rec->ble.cur_rand_addr, bda, BD_ADDR_LEN);
+        if (!btm_ble_init_pseudo_addr (match_rec, bda))
+        {
+            /* assign the original address to be the current report address */
+            memcpy(bda, match_rec->ble.pseudo_addr, BD_ADDR_LEN);
+        }
+        else
+        {
+            memcpy(bda, match_rec->bd_addr, BD_ADDR_LEN);
+        }
+    }
+    else
+    {
+        LOG_INFO(LOG_TAG, "%s unable to match and resolve random address", __func__);
+    }
+
+    btm_ble_connected(bda, handle, HCI_ENCRYPT_MODE_DISABLED, role, bda_type, match);
+
+    l2cble_conn_comp (handle, role, bda, bda_type, conn_interval,
+                      conn_latency, conn_timeout);
+
+    return;
+}
+#endif
+
+/*******************************************************************************
+**
+** Function         btm_ble_connected
+**
+** Description      This function is when a LE connection to the peer device is
+**                  establsihed
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_ble_connected (UINT8 *bda, UINT16 handle, UINT8 enc_mode, UINT8 role,
+                        tBLE_ADDR_TYPE addr_type, BOOLEAN addr_matched)
+{
+    tBTM_SEC_DEV_REC *p_dev_rec = btm_find_dev (bda);
+    tBTM_BLE_CB *p_cb = &btm_cb.ble_ctr_cb;
+    UNUSED(addr_matched);
+
+    BTM_TRACE_EVENT ("btm_ble_connected");
+
+    /* Commenting out trace due to obf/compilation problems.
+    */
+#if (BT_USE_TRACES == TRUE)
+    if (p_dev_rec)
+    {
+        BTM_TRACE_EVENT ("Security Manager: btm_ble_connected :  handle:%d  enc_mode:%d  bda:%x RName:%s",
+                          handle,  enc_mode,
+                          (bda[2]<<24)+(bda[3]<<16)+(bda[4]<<8)+bda[5],
+                          p_dev_rec->sec_bd_name);
+
+        BTM_TRACE_DEBUG ("btm_ble_connected sec_flags=0x%x",p_dev_rec->sec_flags);
+    }
+    else
+    {
+        BTM_TRACE_EVENT ("Security Manager: btm_ble_connected:   handle:%d  enc_mode:%d  bda:%x ",
+                          handle,  enc_mode,
+                          (bda[2]<<24)+(bda[3]<<16)+(bda[4]<<8)+bda[5]);
+    }
+#endif
+
+    if (!p_dev_rec)
+    {
+        /* There is no device record for new connection.  Allocate one */
+        if ((p_dev_rec = btm_sec_alloc_dev (bda)) == NULL)
+            return;
+    }
+    else    /* Update the timestamp for this device */
+    {
+        p_dev_rec->timestamp = btm_cb.dev_rec_count++;
+    }
+
+    /* update device information */
+    p_dev_rec->device_type |= BT_DEVICE_TYPE_BLE;
+    p_dev_rec->ble_hci_handle = handle;
+    p_dev_rec->ble.ble_addr_type = addr_type;
+    /* update pseudo address */
+    memcpy(p_dev_rec->ble.pseudo_addr, bda, BD_ADDR_LEN);
+
+    p_dev_rec->role_master = FALSE;
+    if (role == HCI_ROLE_MASTER)
+        p_dev_rec->role_master = TRUE;
+
+#if (defined BLE_PRIVACY_SPT && BLE_PRIVACY_SPT == TRUE)
+    if (!addr_matched)
+        p_dev_rec->ble.active_addr_type = BTM_BLE_ADDR_PSEUDO;
+
+    if (p_dev_rec->ble.ble_addr_type == BLE_ADDR_RANDOM && !addr_matched)
+        memcpy(p_dev_rec->ble.cur_rand_addr, bda, BD_ADDR_LEN);
+#endif
+
+    p_cb->inq_var.directed_conn = BTM_BLE_CONNECT_EVT;
+
+    return;
+}
+
+/*****************************************************************************
+**  Function        btm_ble_conn_complete
+**
+**  Description     LE connection complete.
+**
+******************************************************************************/
+void btm_ble_conn_complete(UINT8 *p, UINT16 evt_len, BOOLEAN enhanced)
+{
+#if (BLE_PRIVACY_SPT == TRUE )
+    UINT8       *p_data = p, peer_addr_type;
+    BD_ADDR     local_rpa, peer_rpa;
+#endif
+    UINT8       role, status, bda_type;
+    UINT16      handle;
+    BD_ADDR     bda;
+    UINT16      conn_interval, conn_latency, conn_timeout;
+    BOOLEAN     match = FALSE;
+    UNUSED(evt_len);
+
+    STREAM_TO_UINT8   (status, p);
+    STREAM_TO_UINT16   (handle, p);
+    STREAM_TO_UINT8    (role, p);
+    STREAM_TO_UINT8    (bda_type, p);
+    STREAM_TO_BDADDR   (bda, p);
+
+    if (status == 0)
+    {
+#if (BLE_PRIVACY_SPT == TRUE )
+        peer_addr_type = bda_type;
+        match = btm_identity_addr_to_random_pseudo (bda, &bda_type, TRUE);
+
+        if (enhanced)
+        {
+            STREAM_TO_BDADDR   (local_rpa, p);
+            STREAM_TO_BDADDR   (peer_rpa, p);
+        }
+
+        /* possiblly receive connection complete with resolvable random while
+           the device has been paired */
+        if (!match && BTM_BLE_IS_RESOLVE_BDA(bda))
+        {
+            btm_ble_resolve_random_addr(bda, btm_ble_resolve_random_addr_on_conn_cmpl, p_data);
+        }
+        else
+#endif
+        {
+            STREAM_TO_UINT16   (conn_interval, p);
+            STREAM_TO_UINT16   (conn_latency, p);
+            STREAM_TO_UINT16   (conn_timeout, p);
+            handle = HCID_GET_HANDLE (handle);
+
+            btm_ble_connected(bda, handle, HCI_ENCRYPT_MODE_DISABLED, role, bda_type, match);
+
+            l2cble_conn_comp (handle, role, bda, bda_type, conn_interval,
+                              conn_latency, conn_timeout);
+
+#if (BLE_PRIVACY_SPT == TRUE)
+            if (enhanced)
+            {
+                btm_ble_refresh_local_resolvable_private_addr(bda, local_rpa);
+
+                if (peer_addr_type & BLE_ADDR_TYPE_ID_BIT)
+                    btm_ble_refresh_peer_resolvable_private_addr(bda, peer_rpa, BLE_ADDR_RANDOM);
+            }
+#endif
+        }
+    }
+    else
+    {
+        role = HCI_ROLE_UNKNOWN;
+        if (status != HCI_ERR_DIRECTED_ADVERTISING_TIMEOUT)
+        {
+            btm_ble_set_conn_st(BLE_CONN_IDLE);
+#if (defined BLE_PRIVACY_SPT && BLE_PRIVACY_SPT == TRUE)
+            btm_ble_disable_resolving_list(BTM_BLE_RL_INIT, TRUE);
+#endif
+        }
+        else
+        {
+#if (defined BLE_PRIVACY_SPT && BLE_PRIVACY_SPT == TRUE)
+            btm_cb.ble_ctr_cb.inq_var.adv_mode  = BTM_BLE_ADV_DISABLE;
+            btm_ble_disable_resolving_list(BTM_BLE_RL_ADV, TRUE);
+#endif
+        }
+    }
+
+    btm_ble_update_mode_operation(role, bda, status);
+}
+
+/*****************************************************************************
+** Function btm_ble_create_ll_conn_complete
+**
+** Description LE connection complete.
+**
+******************************************************************************/
+void btm_ble_create_ll_conn_complete (UINT8 status)
+{
+    if (status != HCI_SUCCESS)
+    {
+        btm_ble_set_conn_st(BLE_CONN_IDLE);
+        btm_ble_update_mode_operation(HCI_ROLE_UNKNOWN, NULL, status);
+    }
+}
+/*****************************************************************************
+**  Function        btm_proc_smp_cback
+**
+**  Description     This function is the SMP callback handler.
+**
+******************************************************************************/
+UINT8 btm_proc_smp_cback(tSMP_EVT event, BD_ADDR bd_addr, tSMP_EVT_DATA *p_data)
+{
+    tBTM_SEC_DEV_REC    *p_dev_rec = btm_find_dev (bd_addr);
+    UINT8 res = 0;
+
+    BTM_TRACE_DEBUG ("btm_proc_smp_cback event = %d", event);
+
+    if (p_dev_rec != NULL)
+    {
+        switch (event)
+        {
+            case SMP_IO_CAP_REQ_EVT:
+                btm_ble_io_capabilities_req(p_dev_rec, (tBTM_LE_IO_REQ *)&p_data->io_req);
+                break;
+
+            case SMP_BR_KEYS_REQ_EVT:
+                btm_ble_br_keys_req(p_dev_rec, (tBTM_LE_IO_REQ *)&p_data->io_req);
+                break;
+
+            case SMP_PASSKEY_REQ_EVT:
+            case SMP_PASSKEY_NOTIF_EVT:
+            case SMP_OOB_REQ_EVT:
+            case SMP_NC_REQ_EVT:
+            case SMP_SC_OOB_REQ_EVT:
+                /* fall through */
+                p_dev_rec->sec_flags |= BTM_SEC_LE_AUTHENTICATED;
+
+            case SMP_SEC_REQUEST_EVT:
+                if (event == SMP_SEC_REQUEST_EVT && btm_cb.pairing_state != BTM_PAIR_STATE_IDLE)
+                {
+                    BTM_TRACE_DEBUG("%s: Ignoring SMP Security request", __func__);
+                    break;
+                }
+                memcpy (btm_cb.pairing_bda, bd_addr, BD_ADDR_LEN);
+                p_dev_rec->sec_state = BTM_SEC_STATE_AUTHENTICATING;
+                btm_cb.pairing_flags |= BTM_PAIR_FLAGS_LE_ACTIVE;
+                /* fall through */
+
+            case SMP_COMPLT_EVT:
+                if (btm_cb.api.p_le_callback)
+                {
+                    /* the callback function implementation may change the IO capability... */
+                    BTM_TRACE_DEBUG ("btm_cb.api.p_le_callback=0x%x", btm_cb.api.p_le_callback );
+                   (*btm_cb.api.p_le_callback) (event, bd_addr, (tBTM_LE_EVT_DATA *)p_data);
+                }
+
+                if (event == SMP_COMPLT_EVT)
+                {
+                    BTM_TRACE_DEBUG ("evt=SMP_COMPLT_EVT before update sec_level=0x%x sec_flags=0x%x", p_data->cmplt.sec_level , p_dev_rec->sec_flags );
+
+                    res = (p_data->cmplt.reason == SMP_SUCCESS) ? BTM_SUCCESS : BTM_ERR_PROCESSING;
+
+                    BTM_TRACE_DEBUG ("after update result=%d sec_level=0x%x sec_flags=0x%x",
+                                      res, p_data->cmplt.sec_level , p_dev_rec->sec_flags );
+
+                    if (p_data->cmplt.is_pair_cancel && btm_cb.api.p_bond_cancel_cmpl_callback )
+                    {
+                        BTM_TRACE_DEBUG ("Pairing Cancel completed");
+                        (*btm_cb.api.p_bond_cancel_cmpl_callback)(BTM_SUCCESS);
+                    }
+#if BTM_BLE_CONFORMANCE_TESTING == TRUE
+                    if (res != BTM_SUCCESS)
+                    {
+                        if (!btm_cb.devcb.no_disc_if_pair_fail && p_data->cmplt.reason != SMP_CONN_TOUT)
+                        {
+                            BTM_TRACE_DEBUG ("Pairing failed - prepare to remove ACL");
+                            l2cu_start_post_bond_timer(p_dev_rec->ble_hci_handle);
+                        }
+                        else
+                        {
+                            BTM_TRACE_DEBUG ("Pairing failed - Not Removing ACL");
+                            p_dev_rec->sec_state = BTM_SEC_STATE_IDLE;
+                        }
+                    }
+#else
+                    if (res != BTM_SUCCESS && p_data->cmplt.reason != SMP_CONN_TOUT)
+                    {
+                        BTM_TRACE_DEBUG ("Pairing failed - prepare to remove ACL");
+                        l2cu_start_post_bond_timer(p_dev_rec->ble_hci_handle);
+                    }
+#endif
+
+                    BTM_TRACE_DEBUG ("btm_cb pairing_state=%x pairing_flags=%x pin_code_len=%x",
+                                      btm_cb.pairing_state,
+                                      btm_cb.pairing_flags,
+                                      btm_cb.pin_code_len  );
+                    BTM_TRACE_DEBUG ("btm_cb.pairing_bda %02x:%02x:%02x:%02x:%02x:%02x",
+                                      btm_cb.pairing_bda[0], btm_cb.pairing_bda[1], btm_cb.pairing_bda[2],
+                                      btm_cb.pairing_bda[3], btm_cb.pairing_bda[4], btm_cb.pairing_bda[5]);
+
+                    /* Reset btm state only if the callback address matches pairing address*/
+                    if(memcmp(bd_addr, btm_cb.pairing_bda, BD_ADDR_LEN) == 0)
+                    {
+                        memset (btm_cb.pairing_bda, 0xff, BD_ADDR_LEN);
+                        btm_cb.pairing_state = BTM_PAIR_STATE_IDLE;
+                        btm_cb.pairing_flags = 0;
+                    }
+
+                    if (res == BTM_SUCCESS)
+                    {
+                        p_dev_rec->sec_state = BTM_SEC_STATE_IDLE;
+#if (defined BLE_PRIVACY_SPT && BLE_PRIVACY_SPT == TRUE)
+                        /* add all bonded device into resolving list if IRK is available*/
+                        btm_ble_resolving_list_load_dev(p_dev_rec);
+#endif
+                    }
+
+                    btm_sec_dev_rec_cback_event(p_dev_rec, res, TRUE);
+                }
+                break;
+
+            default:
+                BTM_TRACE_DEBUG ("unknown event = %d", event);
+                break;
+
+        }
+    }
+    else
+    {
+        BTM_TRACE_ERROR("btm_proc_smp_cback received for unknown device");
+    }
+
+    return 0;
+}
+
+    #endif  /* SMP_INCLUDED */
+
+/*******************************************************************************
+**
+** Function         BTM_BleDataSignature
+**
+** Description      This function is called to sign the data using AES128 CMAC
+**                  algorith.
+**
+** Parameter        bd_addr: target device the data to be signed for.
+**                  p_text: singing data
+**                  len: length of the data to be signed.
+**                  signature: output parameter where data signature is going to
+**                             be stored.
+**
+** Returns          TRUE if signing sucessul, otherwise FALSE.
+**
+*******************************************************************************/
+BOOLEAN BTM_BleDataSignature (BD_ADDR bd_addr, UINT8 *p_text, UINT16 len,
+                              BLE_SIGNATURE signature)
+{
+    tBTM_SEC_DEV_REC *p_rec = btm_find_dev (bd_addr);
+
+    BTM_TRACE_DEBUG ("%s", __func__);
+    BOOLEAN ret = FALSE;
+    if (p_rec == NULL)
+    {
+        BTM_TRACE_ERROR("%s-data signing can not be done from unknown device", __func__);
+    }
+    else
+    {
+        UINT8 *p_mac = (UINT8 *)signature;
+        UINT8 *pp;
+        UINT8 *p_buf = (UINT8 *)osi_malloc(len + 4);
+
+        BTM_TRACE_DEBUG("%s-Start to generate Local CSRK", __func__);
+        pp = p_buf;
+        /* prepare plain text */
+        if (p_text) {
+            memcpy(p_buf, p_text, len);
+            pp = (p_buf + len);
+        }
+
+        UINT32_TO_STREAM(pp, p_rec->ble.keys.local_counter);
+        UINT32_TO_STREAM(p_mac, p_rec->ble.keys.local_counter);
+
+        if ((ret = aes_cipher_msg_auth_code(p_rec->ble.keys.lcsrk, p_buf, (UINT16)(len + 4),
+                                            BTM_CMAC_TLEN_SIZE, p_mac)) == TRUE) {
+            btm_ble_increment_sign_ctr(bd_addr, TRUE);
+        }
+
+        BTM_TRACE_DEBUG("%s p_mac = %d", __func__, p_mac);
+        BTM_TRACE_DEBUG("p_mac[0] = 0x%02x p_mac[1] = 0x%02x p_mac[2] = 0x%02x p_mac[3] = 0x%02x",
+                        *p_mac, *(p_mac + 1), *(p_mac + 2), *(p_mac + 3));
+        BTM_TRACE_DEBUG("p_mac[4] = 0x%02x p_mac[5] = 0x%02x p_mac[6] = 0x%02x p_mac[7] = 0x%02x",
+                        *(p_mac + 4), *(p_mac + 5), *(p_mac + 6), *(p_mac + 7));
+        osi_free(p_buf);
+    }
+    return ret;
+}
+
+/*******************************************************************************
+**
+** Function         BTM_BleVerifySignature
+**
+** Description      This function is called to verify the data signature
+**
+** Parameter        bd_addr: target device the data to be signed for.
+**                  p_orig:  original data before signature.
+**                  len: length of the signing data
+**                  counter: counter used when doing data signing
+**                  p_comp: signature to be compared against.
+
+** Returns          TRUE if signature verified correctly; otherwise FALSE.
+**
+*******************************************************************************/
+BOOLEAN BTM_BleVerifySignature (BD_ADDR bd_addr, UINT8 *p_orig, UINT16 len, UINT32 counter,
+                                UINT8 *p_comp)
+{
+    BOOLEAN verified = FALSE;
+#if SMP_INCLUDED == TRUE
+    tBTM_SEC_DEV_REC *p_rec = btm_find_dev (bd_addr);
+    UINT8 p_mac[BTM_CMAC_TLEN_SIZE];
+
+    if (p_rec == NULL || (p_rec && !(p_rec->ble.key_type & BTM_LE_KEY_PCSRK)))
+    {
+        BTM_TRACE_ERROR("can not verify signature for unknown device");
+    }
+    else if (counter < p_rec->ble.keys.counter)
+    {
+        BTM_TRACE_ERROR("signature received with out dated sign counter");
+    }
+    else if (p_orig == NULL)
+    {
+        BTM_TRACE_ERROR("No signature to verify");
+    }
+    else
+    {
+        BTM_TRACE_DEBUG ("%s rcv_cnt=%d >= expected_cnt=%d", __func__, counter,
+                          p_rec->ble.keys.counter);
+
+        if (aes_cipher_msg_auth_code(p_rec->ble.keys.pcsrk, p_orig, len, BTM_CMAC_TLEN_SIZE, p_mac))
+        {
+            if (memcmp(p_mac, p_comp, BTM_CMAC_TLEN_SIZE) == 0)
+            {
+                btm_ble_increment_sign_ctr(bd_addr, FALSE);
+                verified = TRUE;
+            }
+        }
+    }
+#endif  /* SMP_INCLUDED */
+    return verified;
+}
+
+/*******************************************************************************
+**
+** Function         BTM_GetLeSecurityState
+**
+** Description      This function is called to get security mode 1 flags and
+**                  encryption key size for LE peer.
+**
+** Returns          BOOLEAN TRUE if LE device is found, FALSE otherwise.
+**
+*******************************************************************************/
+BOOLEAN BTM_GetLeSecurityState (BD_ADDR bd_addr, UINT8 *p_le_dev_sec_flags, UINT8 *p_le_key_size)
+{
+#if (BLE_INCLUDED == TRUE)
+    tBTM_SEC_DEV_REC *p_dev_rec;
+    UINT16 dev_rec_sec_flags;
+#endif
+
+    *p_le_dev_sec_flags = 0;
+    *p_le_key_size = 0;
+
+#if (BLE_INCLUDED == TRUE && SMP_INCLUDED == TRUE)
+    if ((p_dev_rec = btm_find_dev (bd_addr)) == NULL)
+    {
+        BTM_TRACE_ERROR ("%s fails", __func__);
+        return (FALSE);
+    }
+
+    if (p_dev_rec->ble_hci_handle == BTM_SEC_INVALID_HANDLE) {
+        BTM_TRACE_ERROR ("%s-this is not LE device", __func__);
+        return (FALSE);
+    }
+
+    dev_rec_sec_flags = p_dev_rec->sec_flags;
+
+    if (dev_rec_sec_flags & BTM_SEC_LE_ENCRYPTED)
+    {
+        /* link is encrypted with LTK or STK */
+        *p_le_key_size = p_dev_rec->enc_key_size;
+        *p_le_dev_sec_flags |= BTM_SEC_LE_LINK_ENCRYPTED;
+
+        *p_le_dev_sec_flags |= (dev_rec_sec_flags & BTM_SEC_LE_AUTHENTICATED)
+            ? BTM_SEC_LE_LINK_PAIRED_WITH_MITM      /* set auth LTK flag */
+            : BTM_SEC_LE_LINK_PAIRED_WITHOUT_MITM;  /* set unauth LTK flag */
+    }
+    else if (p_dev_rec->ble.key_type & BTM_LE_KEY_PENC)
+    {
+        /* link is unencrypted, still LTK is available */
+        *p_le_key_size = p_dev_rec->ble.keys.key_size;
+
+        *p_le_dev_sec_flags |= (dev_rec_sec_flags & BTM_SEC_LE_LINK_KEY_AUTHED)
+            ? BTM_SEC_LE_LINK_PAIRED_WITH_MITM      /* set auth LTK flag */
+            : BTM_SEC_LE_LINK_PAIRED_WITHOUT_MITM;  /* set unauth LTK flag */
+    }
+
+    BTM_TRACE_DEBUG ("%s - le_dev_sec_flags: 0x%02x, le_key_size: %d",
+        __func__, *p_le_dev_sec_flags, *p_le_key_size);
+
+    return TRUE;
+#else
+    return FALSE;
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         BTM_BleSecurityProcedureIsRunning
+**
+** Description      This function indicates if LE security procedure is
+**                  currently running with the peer.
+**
+** Returns          BOOLEAN TRUE if security procedure is running, FALSE otherwise.
+**
+*******************************************************************************/
+BOOLEAN BTM_BleSecurityProcedureIsRunning(BD_ADDR bd_addr)
+{
+#if (BLE_INCLUDED == TRUE)
+    tBTM_SEC_DEV_REC *p_dev_rec = btm_find_dev (bd_addr);
+
+    if (p_dev_rec == NULL)
+    {
+        BTM_TRACE_ERROR ("%s device with BDA: %08x%04x is not found",
+                          __func__, (bd_addr[0]<<24)+(bd_addr[1]<<16)+(bd_addr[2]<<8)+bd_addr[3],
+                          (bd_addr[4]<<8)+bd_addr[5]);
+        return FALSE;
+    }
+
+    return (p_dev_rec->sec_state == BTM_SEC_STATE_ENCRYPTING ||
+            p_dev_rec->sec_state == BTM_SEC_STATE_AUTHENTICATING);
+#else
+    return FALSE;
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         BTM_BleGetSupportedKeySize
+**
+** Description      This function gets the maximum encryption key size in bytes
+**                  the local device can suport.
+**                  record.
+**
+** Returns          the key size or 0 if the size can't be retrieved.
+**
+*******************************************************************************/
+extern UINT8 BTM_BleGetSupportedKeySize (BD_ADDR bd_addr)
+{
+#if ((BLE_INCLUDED == TRUE) && (L2CAP_LE_COC_INCLUDED == TRUE))
+    tBTM_SEC_DEV_REC *p_dev_rec = btm_find_dev (bd_addr);
+    tBTM_LE_IO_REQ dev_io_cfg;
+    UINT8 callback_rc;
+
+    if (!p_dev_rec)
+    {
+        BTM_TRACE_ERROR ("%s device with BDA: %08x%04x is not found",
+                         __func__,(bd_addr[0]<<24)+(bd_addr[1]<<16)+(bd_addr[2]<<8)+bd_addr[3],
+                          (bd_addr[4]<<8)+bd_addr[5]);
+        return 0;
+    }
+
+    if (btm_cb.api.p_le_callback == NULL)
+    {
+        BTM_TRACE_ERROR ("%s can't access supported key size",__func__);
+        return 0;
+    }
+
+    callback_rc = (*btm_cb.api.p_le_callback) (BTM_LE_IO_REQ_EVT, p_dev_rec->bd_addr,
+                                               (tBTM_LE_EVT_DATA *) &dev_io_cfg);
+
+    if (callback_rc != BTM_SUCCESS)
+    {
+        BTM_TRACE_ERROR ("%s can't access supported key size",__func__);
+        return 0;
+    }
+
+    BTM_TRACE_DEBUG ("%s device supports key size = %d", __func__, dev_io_cfg.max_key_size);
+    return (dev_io_cfg.max_key_size);
+#else
+    return 0;
+#endif
+}
+
+/*******************************************************************************
+**  Utility functions for LE device IR/ER generation
+*******************************************************************************/
+/*******************************************************************************
+**
+** Function         btm_notify_new_key
+**
+** Description      This function is to notify application new keys have been
+**                  generated.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btm_notify_new_key(UINT8 key_type)
+{
+    tBTM_BLE_LOCAL_KEYS *p_locak_keys = NULL;
+
+    BTM_TRACE_DEBUG ("btm_notify_new_key key_type=%d", key_type);
+
+    if (btm_cb.api.p_le_key_callback)
+    {
+        switch (key_type)
+        {
+            case BTM_BLE_KEY_TYPE_ID:
+                BTM_TRACE_DEBUG ("BTM_BLE_KEY_TYPE_ID");
+                p_locak_keys = (tBTM_BLE_LOCAL_KEYS *)&btm_cb.devcb.id_keys;
+                break;
+
+            case BTM_BLE_KEY_TYPE_ER:
+                BTM_TRACE_DEBUG ("BTM_BLE_KEY_TYPE_ER");
+                p_locak_keys = (tBTM_BLE_LOCAL_KEYS *)&btm_cb.devcb.ble_encryption_key_value;
+                break;
+
+            default:
+                BTM_TRACE_ERROR("unknown key type: %d", key_type);
+                break;
+        }
+        if (p_locak_keys != NULL)
+            (*btm_cb.api.p_le_key_callback) (key_type, p_locak_keys);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_process_er2
+**
+** Description      This function is called when ER is generated, store it in
+**                  local control block.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btm_ble_process_er2(tBTM_RAND_ENC *p)
+{
+    BTM_TRACE_DEBUG ("btm_ble_process_er2");
+
+    if (p &&p->opcode == HCI_BLE_RAND)
+    {
+        memcpy(&btm_cb.devcb.ble_encryption_key_value[8], p->param_buf, BT_OCTET8_LEN);
+        btm_notify_new_key(BTM_BLE_KEY_TYPE_ER);
+    }
+    else
+    {
+        BTM_TRACE_ERROR("Generating ER2 exception.");
+        memset(&btm_cb.devcb.ble_encryption_key_value, 0, sizeof(BT_OCTET16));
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_process_er
+**
+** Description      This function is called when ER is generated, store it in
+**                  local control block.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btm_ble_process_er(tBTM_RAND_ENC *p)
+{
+    BTM_TRACE_DEBUG ("btm_ble_process_er");
+
+    if (p &&p->opcode == HCI_BLE_RAND)
+    {
+        memcpy(&btm_cb.devcb.ble_encryption_key_value[0], p->param_buf, BT_OCTET8_LEN);
+
+        if (!btsnd_hcic_ble_rand((void *)btm_ble_process_er2))
+        {
+            memset(&btm_cb.devcb.ble_encryption_key_value, 0, sizeof(BT_OCTET16));
+            BTM_TRACE_ERROR("Generating ER2 failed.");
+        }
+    }
+    else
+    {
+        BTM_TRACE_ERROR("Generating ER1 exception.");
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_process_irk
+**
+** Description      This function is called when IRK is generated, store it in
+**                  local control block.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btm_ble_process_irk(tSMP_ENC *p)
+{
+    BTM_TRACE_DEBUG ("btm_ble_process_irk");
+    if (p &&p->opcode == HCI_BLE_ENCRYPT)
+    {
+        memcpy(btm_cb.devcb.id_keys.irk, p->param_buf, BT_OCTET16_LEN);
+        btm_notify_new_key(BTM_BLE_KEY_TYPE_ID);
+
+#if BLE_PRIVACY_SPT == TRUE
+        /* if privacy is enabled, new RPA should be calculated */
+        if (btm_cb.ble_ctr_cb.privacy_mode != BTM_PRIVACY_NONE)
+        {
+            btm_gen_resolvable_private_addr((void *)btm_gen_resolve_paddr_low);
+        }
+#endif
+    }
+    else
+    {
+        BTM_TRACE_ERROR("Generating IRK exception.");
+    }
+
+    /* proceed generate ER */
+    if (!btsnd_hcic_ble_rand((void *)btm_ble_process_er))
+    {
+        BTM_TRACE_ERROR("Generating ER failed.");
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_process_dhk
+**
+** Description      This function is called when DHK is calculated, store it in
+**                  local control block, and proceed to generate ER, a 128-bits
+**                  random number.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btm_ble_process_dhk(tSMP_ENC *p)
+{
+#if SMP_INCLUDED == TRUE
+    UINT8 btm_ble_irk_pt = 0x01;
+    tSMP_ENC output;
+
+    BTM_TRACE_DEBUG ("btm_ble_process_dhk");
+
+    if (p && p->opcode == HCI_BLE_ENCRYPT)
+    {
+        memcpy(btm_cb.devcb.id_keys.dhk, p->param_buf, BT_OCTET16_LEN);
+        BTM_TRACE_DEBUG("BLE DHK generated.");
+
+        /* IRK = D1(IR, 1) */
+        if (!SMP_Encrypt(btm_cb.devcb.id_keys.ir, BT_OCTET16_LEN, &btm_ble_irk_pt,
+                         1,   &output))
+        {
+            /* reset all identity root related key */
+            memset(&btm_cb.devcb.id_keys, 0, sizeof(tBTM_BLE_LOCAL_ID_KEYS));
+        }
+        else
+        {
+            btm_ble_process_irk(&output);
+        }
+    }
+    else
+    {
+        /* reset all identity root related key */
+        memset(&btm_cb.devcb.id_keys, 0, sizeof(tBTM_BLE_LOCAL_ID_KEYS));
+    }
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_process_ir2
+**
+** Description      This function is called when IR is generated, proceed to calculate
+**                  DHK = Eir({0x03, 0, 0 ...})
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btm_ble_process_ir2(tBTM_RAND_ENC *p)
+{
+#if SMP_INCLUDED == TRUE
+    UINT8 btm_ble_dhk_pt = 0x03;
+    tSMP_ENC output;
+
+    BTM_TRACE_DEBUG ("btm_ble_process_ir2");
+
+    if (p && p->opcode == HCI_BLE_RAND)
+    {
+        /* remembering in control block */
+        memcpy(&btm_cb.devcb.id_keys.ir[8], p->param_buf, BT_OCTET8_LEN);
+        /* generate DHK= Eir({0x03, 0x00, 0x00 ...}) */
+
+        SMP_Encrypt(btm_cb.devcb.id_keys.ir, BT_OCTET16_LEN, &btm_ble_dhk_pt,
+                    1, &output);
+        btm_ble_process_dhk(&output);
+
+        BTM_TRACE_DEBUG("BLE IR generated.");
+    }
+    else
+    {
+        memset(&btm_cb.devcb.id_keys, 0, sizeof(tBTM_BLE_LOCAL_ID_KEYS));
+    }
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_process_ir
+**
+** Description      This function is called when IR is generated, proceed to calculate
+**                  DHK = Eir({0x02, 0, 0 ...})
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btm_ble_process_ir(tBTM_RAND_ENC *p)
+{
+    BTM_TRACE_DEBUG ("btm_ble_process_ir");
+
+    if (p && p->opcode == HCI_BLE_RAND)
+    {
+        /* remembering in control block */
+        memcpy(btm_cb.devcb.id_keys.ir, p->param_buf, BT_OCTET8_LEN);
+
+        if (!btsnd_hcic_ble_rand((void *)btm_ble_process_ir2))
+        {
+            BTM_TRACE_ERROR("Generating IR2 failed.");
+            memset(&btm_cb.devcb.id_keys, 0, sizeof(tBTM_BLE_LOCAL_ID_KEYS));
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_reset_id
+**
+** Description      This function is called to reset LE device identity.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_ble_reset_id( void )
+{
+    BTM_TRACE_DEBUG ("btm_ble_reset_id");
+
+    /* regenrate Identity Root*/
+    if (!btsnd_hcic_ble_rand((void *)btm_ble_process_ir))
+    {
+        BTM_TRACE_DEBUG("Generating IR failed.");
+    }
+}
+
+    #if BTM_BLE_CONFORMANCE_TESTING == TRUE
+/*******************************************************************************
+**
+** Function         btm_ble_set_no_disc_if_pair_fail
+**
+** Description      This function indicates that whether no disconnect of the ACL
+**                  should be used if pairing failed
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_ble_set_no_disc_if_pair_fail(BOOLEAN disable_disc )
+{
+    BTM_TRACE_DEBUG ("btm_ble_set_disc_enable_if_pair_fail disable_disc=%d", disable_disc);
+    btm_cb.devcb.no_disc_if_pair_fail = disable_disc;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_set_test_mac_value
+**
+** Description      This function set test MAC value
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_ble_set_test_mac_value(BOOLEAN enable, UINT8 *p_test_mac_val )
+{
+    BTM_TRACE_DEBUG ("btm_ble_set_test_mac_value enable=%d", enable);
+    btm_cb.devcb.enable_test_mac_val = enable;
+    memcpy(btm_cb.devcb.test_mac, p_test_mac_val, BT_OCTET8_LEN);
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_set_test_local_sign_cntr_value
+**
+** Description      This function set test local sign counter value
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_ble_set_test_local_sign_cntr_value(BOOLEAN enable, UINT32 test_local_sign_cntr )
+{
+    BTM_TRACE_DEBUG ("btm_ble_set_test_local_sign_cntr_value enable=%d local_sign_cntr=%d",
+                      enable, test_local_sign_cntr);
+    btm_cb.devcb.enable_test_local_sign_cntr = enable;
+    btm_cb.devcb.test_local_sign_cntr =  test_local_sign_cntr;
+}
+
+/*******************************************************************************
+**
+** Function         btm_set_random_address
+**
+** Description      This function set a random address to local controller.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_set_random_address(BD_ADDR random_bda)
+{
+    tBTM_LE_RANDOM_CB *p_cb = &btm_cb.ble_ctr_cb.addr_mgnt_cb;
+    BOOLEAN     adv_mode = btm_cb.ble_ctr_cb.inq_var.adv_mode ;
+
+    BTM_TRACE_DEBUG ("btm_set_random_address");
+
+    if (adv_mode  == BTM_BLE_ADV_ENABLE)
+        btsnd_hcic_ble_set_adv_enable (BTM_BLE_ADV_DISABLE);
+
+    memcpy(p_cb->private_addr, random_bda, BD_ADDR_LEN);
+    btsnd_hcic_ble_set_random_addr(p_cb->private_addr);
+
+    if (adv_mode  == BTM_BLE_ADV_ENABLE)
+        btsnd_hcic_ble_set_adv_enable (BTM_BLE_ADV_ENABLE);
+
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_set_keep_rfu_in_auth_req
+**
+** Description      This function indicates if RFU bits have to be kept as is
+**                  (by default they have to be set to 0 by the sender).
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_ble_set_keep_rfu_in_auth_req(BOOLEAN keep_rfu)
+{
+    BTM_TRACE_DEBUG ("btm_ble_set_keep_rfu_in_auth_req keep_rfus=%d", keep_rfu);
+    btm_cb.devcb.keep_rfu_in_auth_req = keep_rfu;
+}
+
+#endif /* BTM_BLE_CONFORMANCE_TESTING */
+
+#endif /* BLE_INCLUDED */
diff --git a/rtkbt/code/bt/stack/btm/btm_ble_addr.c b/rtkbt/code/bt/stack/btm/btm_ble_addr.c
new file mode 100755
index 0000000..81fff53
--- /dev/null
+++ b/rtkbt/code/bt/stack/btm/btm_ble_addr.c
@@ -0,0 +1,585 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains functions for BLE address management.
+ *
+ ******************************************************************************/
+
+#include <string.h>
+
+#include "bt_types.h"
+#include "hcimsgs.h"
+#include "btu.h"
+#include "btm_int.h"
+#include "gap_api.h"
+#include "device/include/controller.h"
+
+#if (defined BLE_INCLUDED && BLE_INCLUDED == TRUE)
+#include "btm_ble_int.h"
+#include "smp_api.h"
+
+
+extern fixed_queue_t *btu_general_alarm_queue;
+
+/*******************************************************************************
+**
+** Function         btm_gen_resolve_paddr_cmpl
+**
+** Description      This is callback functioin when resolvable private address
+**                  generation is complete.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btm_gen_resolve_paddr_cmpl(tSMP_ENC *p)
+{
+    tBTM_LE_RANDOM_CB *p_cb = &btm_cb.ble_ctr_cb.addr_mgnt_cb;
+    BTM_TRACE_EVENT ("btm_gen_resolve_paddr_cmpl");
+
+    if (p)
+    {
+        /* set hash to be LSB of rpAddress */
+        p_cb->private_addr[5] = p->param_buf[0];
+        p_cb->private_addr[4] = p->param_buf[1];
+        p_cb->private_addr[3] = p->param_buf[2];
+        /* set it to controller */
+        btsnd_hcic_ble_set_random_addr(p_cb->private_addr);
+
+        p_cb->own_addr_type = BLE_ADDR_RANDOM;
+
+        /* start a periodical timer to refresh random addr */
+        period_ms_t interval_ms = BTM_BLE_PRIVATE_ADDR_INT_MS;
+#if (BTM_BLE_CONFORMANCE_TESTING == TRUE)
+        interval_ms = btm_cb.ble_ctr_cb.rpa_tout * 1000;
+#endif
+        alarm_set_on_queue(p_cb->refresh_raddr_timer, interval_ms,
+                           btm_ble_refresh_raddr_timer_timeout, NULL,
+                           btu_general_alarm_queue);
+    }
+    else
+    {
+        /* random address set failure */
+        BTM_TRACE_DEBUG("set random address failed");
+    }
+}
+/*******************************************************************************
+**
+** Function         btm_gen_resolve_paddr_low
+**
+** Description      This function is called when random address has generate the
+**                  random number base for low 3 byte bd address.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_gen_resolve_paddr_low(tBTM_RAND_ENC *p)
+{
+#if (BLE_INCLUDED == TRUE && SMP_INCLUDED == TRUE)
+    tBTM_LE_RANDOM_CB *p_cb = &btm_cb.ble_ctr_cb.addr_mgnt_cb;
+    tSMP_ENC    output;
+
+    BTM_TRACE_EVENT ("btm_gen_resolve_paddr_low");
+    if (p)
+    {
+        p->param_buf[2] &= (~BLE_RESOLVE_ADDR_MASK);
+        p->param_buf[2] |= BLE_RESOLVE_ADDR_MSB;
+
+        p_cb->private_addr[2] = p->param_buf[0];
+        p_cb->private_addr[1] = p->param_buf[1];
+        p_cb->private_addr[0] = p->param_buf[2];
+
+        /* encrypt with ur IRK */
+        if (!SMP_Encrypt(btm_cb.devcb.id_keys.irk, BT_OCTET16_LEN, p->param_buf, 3, &output))
+        {
+            btm_gen_resolve_paddr_cmpl(NULL);
+        }
+        else
+        {
+            btm_gen_resolve_paddr_cmpl(&output);
+        }
+    }
+#endif
+}
+/*******************************************************************************
+**
+** Function         btm_gen_resolvable_private_addr
+**
+** Description      This function generate a resolvable private address.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_gen_resolvable_private_addr (void *p_cmd_cplt_cback)
+{
+    BTM_TRACE_EVENT ("btm_gen_resolvable_private_addr");
+    /* generate 3B rand as BD LSB, SRK with it, get BD MSB */
+    if (!btsnd_hcic_ble_rand((void *)p_cmd_cplt_cback))
+        btm_gen_resolve_paddr_cmpl(NULL);
+}
+/*******************************************************************************
+**
+** Function         btm_gen_non_resolve_paddr_cmpl
+**
+** Description      This is the callback function when non-resolvable private
+**                  function is generated and write to controller.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btm_gen_non_resolve_paddr_cmpl(tBTM_RAND_ENC *p)
+{
+    tBTM_LE_RANDOM_CB *p_cb = &btm_cb.ble_ctr_cb.addr_mgnt_cb;
+    tBTM_BLE_ADDR_CBACK *p_cback = p_cb->p_generate_cback;
+    void    *p_data = p_cb->p;
+    UINT8   *pp;
+    BD_ADDR     static_random;
+
+    BTM_TRACE_EVENT ("btm_gen_non_resolve_paddr_cmpl");
+
+    p_cb->p_generate_cback = NULL;
+    if (p)
+    {
+
+        pp = p->param_buf;
+        STREAM_TO_BDADDR(static_random, pp);
+        /* mask off the 2 MSB */
+        static_random[0] &= BLE_STATIC_PRIVATE_MSB_MASK;
+
+        /* report complete */
+        if (p_cback)
+            (* p_cback)(static_random, p_data);
+    }
+    else
+    {
+        BTM_TRACE_DEBUG("btm_gen_non_resolvable_private_addr failed");
+        if (p_cback)
+            (* p_cback)(NULL, p_data);
+    }
+}
+/*******************************************************************************
+**
+** Function         btm_gen_non_resolvable_private_addr
+**
+** Description      This function generate a non-resolvable private address.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_gen_non_resolvable_private_addr (tBTM_BLE_ADDR_CBACK *p_cback, void *p)
+{
+    tBTM_LE_RANDOM_CB   *p_mgnt_cb = &btm_cb.ble_ctr_cb.addr_mgnt_cb;
+
+    BTM_TRACE_EVENT ("btm_gen_non_resolvable_private_addr");
+
+    if (p_mgnt_cb->p_generate_cback != NULL)
+        return;
+
+    p_mgnt_cb->p_generate_cback = p_cback;
+    p_mgnt_cb->p                = p;
+    if (!btsnd_hcic_ble_rand((void *)btm_gen_non_resolve_paddr_cmpl))
+    {
+        btm_gen_non_resolve_paddr_cmpl(NULL);
+    }
+
+}
+
+#if SMP_INCLUDED == TRUE
+/*******************************************************************************
+**  Utility functions for Random address resolving
+*******************************************************************************/
+/*******************************************************************************
+**
+** Function         btm_ble_proc_resolve_x
+**
+** Description      This function compares the X with random address 3 MSO bytes
+**                  to find a match.
+**
+** Returns          TRUE on match, FALSE otherwise
+**
+*******************************************************************************/
+static BOOLEAN btm_ble_proc_resolve_x(tSMP_ENC *p)
+{
+    tBTM_LE_RANDOM_CB   *p_mgnt_cb = &btm_cb.ble_ctr_cb.addr_mgnt_cb;
+    UINT8    comp[3];
+    BTM_TRACE_EVENT ("btm_ble_proc_resolve_x");
+    /* compare the hash with 3 LSB of bd address */
+    comp[0] = p_mgnt_cb->random_bda[5];
+    comp[1] = p_mgnt_cb->random_bda[4];
+    comp[2] = p_mgnt_cb->random_bda[3];
+
+    if (p)
+    {
+        if (!memcmp(p->param_buf, &comp[0], 3))
+        {
+            /* match is found */
+            BTM_TRACE_EVENT ("match is found");
+            return TRUE;
+        }
+    }
+    return FALSE;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_init_pseudo_addr
+**
+** Description      This function is used to initialize pseudo address.
+**                  If pseudo address is not available, use dummy address
+**
+** Returns          TRUE is updated; FALSE otherwise.
+**
+*******************************************************************************/
+BOOLEAN btm_ble_init_pseudo_addr (tBTM_SEC_DEV_REC *p_dev_rec, BD_ADDR new_pseudo_addr)
+{
+    BD_ADDR dummy_bda = {0};
+
+    if (memcmp(p_dev_rec->ble.pseudo_addr, dummy_bda, BD_ADDR_LEN) == 0)
+    {
+        memcpy(p_dev_rec->ble.pseudo_addr, new_pseudo_addr, BD_ADDR_LEN);
+        return TRUE;
+    }
+
+    return FALSE;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_addr_resolvable
+**
+** Description      This function checks if a RPA is resolvable by the device key.
+**
+** Returns          TRUE is resolvable; FALSE otherwise.
+**
+*******************************************************************************/
+BOOLEAN btm_ble_addr_resolvable (BD_ADDR rpa, tBTM_SEC_DEV_REC *p_dev_rec)
+{
+    BOOLEAN rt = FALSE;
+
+    if (!BTM_BLE_IS_RESOLVE_BDA(rpa))
+        return rt;
+
+    UINT8 rand[3];
+    tSMP_ENC output;
+    if ((p_dev_rec->device_type & BT_DEVICE_TYPE_BLE) &&
+        (p_dev_rec->ble.key_type & BTM_LE_KEY_PID))
+    {
+        BTM_TRACE_DEBUG("%s try to resolve", __func__);
+        /* use the 3 MSB of bd address as prand */
+        rand[0] = rpa[2];
+        rand[1] = rpa[1];
+        rand[2] = rpa[0];
+
+        /* generate X = E irk(R0, R1, R2) and R is random address 3 LSO */
+        SMP_Encrypt(p_dev_rec->ble.keys.irk, BT_OCTET16_LEN,
+                    &rand[0], 3, &output);
+
+        rand[0] = rpa[5];
+        rand[1] = rpa[4];
+        rand[2] = rpa[3];
+
+        if (!memcmp(output.param_buf, &rand[0], 3))
+        {
+            btm_ble_init_pseudo_addr (p_dev_rec, rpa);
+            rt = TRUE;
+        }
+    }
+    return rt;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_match_random_bda
+**
+** Description      This function match the random address to the appointed device
+**                  record, starting from calculating IRK. If record index exceed
+**                  the maximum record number, matching failed and send callback.
+**
+** Returns          None.
+**
+*******************************************************************************/
+static BOOLEAN btm_ble_match_random_bda(void *data, void *context)
+{
+#if (BLE_INCLUDED == TRUE && SMP_INCLUDED == TRUE)
+    /* use the 3 MSB of bd address as prand */
+
+    tBTM_LE_RANDOM_CB *p_mgnt_cb = &btm_cb.ble_ctr_cb.addr_mgnt_cb;
+    UINT8 rand[3];
+    rand[0] = p_mgnt_cb->random_bda[2];
+    rand[1] = p_mgnt_cb->random_bda[1];
+    rand[2] = p_mgnt_cb->random_bda[0];
+
+    BTM_TRACE_EVENT("%s next iteration", __func__);
+
+    tSMP_ENC output;
+    tBTM_SEC_DEV_REC *p_dev_rec = data;
+
+    BTM_TRACE_DEBUG("sec_flags = %02x device_type = %d", p_dev_rec->sec_flags,
+                    p_dev_rec->device_type);
+
+    if (!(p_dev_rec->device_type & BT_DEVICE_TYPE_BLE) ||
+        !(p_dev_rec->ble.key_type & BTM_LE_KEY_PID))
+        return TRUE;
+
+    /* generate X = E irk(R0, R1, R2) and R is random address 3 LSO */
+    SMP_Encrypt(p_dev_rec->ble.keys.irk, BT_OCTET16_LEN,
+                &rand[0], 3, &output);
+    // if it was match, finish iteration, otherwise continue
+    return !btm_ble_proc_resolve_x(&output);
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_resolve_random_addr
+**
+** Description      This function is called to resolve a random address.
+**
+** Returns          pointer to the security record of the device whom a random
+**                  address is matched to.
+**
+*******************************************************************************/
+void btm_ble_resolve_random_addr(BD_ADDR random_bda, tBTM_BLE_RESOLVE_CBACK * p_cback, void *p)
+{
+    tBTM_LE_RANDOM_CB   *p_mgnt_cb = &btm_cb.ble_ctr_cb.addr_mgnt_cb;
+
+    BTM_TRACE_EVENT("%s", __func__);
+    if ( !p_mgnt_cb->busy) {
+        p_mgnt_cb->p = p;
+        p_mgnt_cb->busy = TRUE;
+        memcpy(p_mgnt_cb->random_bda, random_bda, BD_ADDR_LEN);
+        /* start to resolve random address */
+        /* check for next security record */
+
+        list_node_t * n = list_foreach(btm_cb.sec_dev_rec, btm_ble_match_random_bda, NULL);
+        tBTM_SEC_DEV_REC *p_dev_rec = n ? list_node(n) : NULL;
+
+        BTM_TRACE_EVENT("%s:  %sresolved", __func__, (p_dev_rec == NULL ? "not " : ""));
+        p_mgnt_cb->busy = FALSE;
+
+        (*p_cback)(p_dev_rec, p);
+    } else {
+        (*p_cback)(NULL, p);
+    }
+}
+#endif
+
+/*******************************************************************************
+**  address mapping between pseudo address and real connection address
+*******************************************************************************/
+/*******************************************************************************
+**
+** Function         btm_find_dev_by_identity_addr
+**
+** Description      find the security record whose LE static address is matching
+**
+*******************************************************************************/
+tBTM_SEC_DEV_REC* btm_find_dev_by_identity_addr(BD_ADDR bd_addr, UINT8 addr_type)
+{
+#if BLE_PRIVACY_SPT == TRUE
+    list_node_t *end = list_end(btm_cb.sec_dev_rec);
+    for (list_node_t *node = list_begin(btm_cb.sec_dev_rec); node != end; node = list_next(node)) {
+        tBTM_SEC_DEV_REC *p_dev_rec = list_node(node);
+        if (memcmp(p_dev_rec->ble.static_addr, bd_addr, BD_ADDR_LEN) == 0) {
+            if ((p_dev_rec->ble.static_addr_type & (~BLE_ADDR_TYPE_ID_BIT)) !=
+                (addr_type & (~BLE_ADDR_TYPE_ID_BIT)))
+                BTM_TRACE_WARNING("%s find pseudo->random match with diff addr type: %d vs %d",
+                    __func__, p_dev_rec->ble.static_addr_type, addr_type);
+
+            /* found the match */
+            return p_dev_rec;
+        }
+    }
+#endif
+
+    return NULL;
+}
+
+/*******************************************************************************
+**
+** Function         btm_identity_addr_to_random_pseudo
+**
+** Description      This function map a static BD address to a pseudo random address
+**                  in security database.
+**
+*******************************************************************************/
+BOOLEAN btm_identity_addr_to_random_pseudo(BD_ADDR bd_addr, UINT8 *p_addr_type, BOOLEAN refresh)
+{
+#if BLE_PRIVACY_SPT == TRUE
+    tBTM_SEC_DEV_REC    *p_dev_rec = btm_find_dev_by_identity_addr(bd_addr, *p_addr_type);
+
+    BTM_TRACE_EVENT ("%s", __func__);
+    /* evt reported on static address, map static address to random pseudo */
+    if (p_dev_rec != NULL)
+    {
+        /* if RPA offloading is supported, or 4.2 controller, do RPA refresh */
+        if (refresh && controller_get_interface()->get_ble_resolving_list_max_size() != 0)
+            btm_ble_read_resolving_list_entry(p_dev_rec);
+
+        /* assign the original address to be the current report address */
+        if (!btm_ble_init_pseudo_addr (p_dev_rec, bd_addr))
+            memcpy(bd_addr, p_dev_rec->ble.pseudo_addr, BD_ADDR_LEN);
+
+        *p_addr_type = p_dev_rec->ble.ble_addr_type;
+        return TRUE;
+    }
+#endif
+    return FALSE;
+}
+
+/*******************************************************************************
+**
+** Function         btm_random_pseudo_to_identity_addr
+**
+** Description      This function map a random pseudo address to a public address
+**                  random_pseudo is input and output parameter
+**
+*******************************************************************************/
+BOOLEAN btm_random_pseudo_to_identity_addr(BD_ADDR random_pseudo, UINT8 *p_static_addr_type)
+{
+#if BLE_PRIVACY_SPT == TRUE
+    tBTM_SEC_DEV_REC    *p_dev_rec = btm_find_dev (random_pseudo);
+
+    if (p_dev_rec != NULL)
+    {
+        if (p_dev_rec->ble.in_controller_list & BTM_RESOLVING_LIST_BIT)
+        {
+            * p_static_addr_type = p_dev_rec->ble.static_addr_type;
+            memcpy(random_pseudo, p_dev_rec->ble.static_addr, BD_ADDR_LEN);
+            if (controller_get_interface()->supports_ble_privacy())
+                *p_static_addr_type |= BLE_ADDR_TYPE_ID_BIT;
+            return TRUE;
+        }
+    }
+#endif
+    return FALSE;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_refresh_peer_resolvable_private_addr
+**
+** Description      This function refresh the currently used resolvable remote private address into security
+**                  database and set active connection address.
+**
+*******************************************************************************/
+void btm_ble_refresh_peer_resolvable_private_addr(BD_ADDR pseudo_bda, BD_ADDR rpa,
+                                                  UINT8 rra_type)
+{
+#if BLE_PRIVACY_SPT == TRUE
+    UINT8 rra_dummy = FALSE;
+    BD_ADDR dummy_bda = {0};
+
+    if (memcmp(dummy_bda, rpa, BD_ADDR_LEN) == 0)
+        rra_dummy = TRUE;
+
+    /* update security record here, in adv event or connection complete process */
+    tBTM_SEC_DEV_REC *p_sec_rec = btm_find_dev(pseudo_bda);
+    if (p_sec_rec != NULL)
+    {
+        memcpy(p_sec_rec->ble.cur_rand_addr, rpa, BD_ADDR_LEN);
+
+        /* unknown, if dummy address, set to static */
+        if (rra_type == BTM_BLE_ADDR_PSEUDO)
+            p_sec_rec->ble.active_addr_type = rra_dummy ? BTM_BLE_ADDR_STATIC: BTM_BLE_ADDR_RRA;
+        else
+            p_sec_rec->ble.active_addr_type = rra_type;
+    }
+    else
+    {
+        BTM_TRACE_ERROR("No matching known device in record");
+        return;
+    }
+
+    BTM_TRACE_DEBUG("%s: active_addr_type: %d ",
+                    __func__, p_sec_rec->ble.active_addr_type);
+
+    /* connection refresh remote address */
+    tACL_CONN *p_acl = btm_bda_to_acl(p_sec_rec->bd_addr, BT_TRANSPORT_LE);
+    if (p_acl == NULL)
+        p_acl = btm_bda_to_acl(p_sec_rec->ble.pseudo_addr, BT_TRANSPORT_LE);
+
+    if (p_acl != NULL)
+    {
+        if (rra_type == BTM_BLE_ADDR_PSEUDO)
+        {
+            /* use static address, resolvable_private_addr is empty */
+            if (rra_dummy)
+            {
+                p_acl->active_remote_addr_type = p_sec_rec->ble.static_addr_type;
+                memcpy(p_acl->active_remote_addr, p_sec_rec->ble.static_addr, BD_ADDR_LEN);
+            }
+            else
+            {
+                p_acl->active_remote_addr_type = BLE_ADDR_RANDOM;
+                memcpy(p_acl->active_remote_addr, rpa, BD_ADDR_LEN);
+            }
+        }
+        else
+        {
+              p_acl->active_remote_addr_type = rra_type;
+              memcpy(p_acl->active_remote_addr, rpa, BD_ADDR_LEN);
+        }
+
+        BTM_TRACE_DEBUG("p_acl->active_remote_addr_type: %d ", p_acl->active_remote_addr_type);
+        BTM_TRACE_DEBUG("%s conn_addr: %02x:%02x:%02x:%02x:%02x:%02x",
+                __func__,p_acl->active_remote_addr[0], p_acl->active_remote_addr[1],
+                p_acl->active_remote_addr[2], p_acl->active_remote_addr[3],
+                p_acl->active_remote_addr[4], p_acl->active_remote_addr[5]);
+    }
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_refresh_local_resolvable_private_addr
+**
+** Description      This function refresh the currently used resolvable private address for the
+**                  active link to the remote device
+**
+*******************************************************************************/
+void btm_ble_refresh_local_resolvable_private_addr(BD_ADDR pseudo_addr,
+                                                   BD_ADDR local_rpa)
+{
+#if BLE_PRIVACY_SPT == TRUE
+    tACL_CONN *p = btm_bda_to_acl(pseudo_addr, BT_TRANSPORT_LE);
+    BD_ADDR     dummy_bda = {0};
+
+    if (p != NULL)
+    {
+        if (btm_cb.ble_ctr_cb.privacy_mode != BTM_PRIVACY_NONE)
+        {
+            p->conn_addr_type = BLE_ADDR_RANDOM;
+            if (memcmp(local_rpa, dummy_bda, BD_ADDR_LEN))
+                memcpy(p->conn_addr, local_rpa, BD_ADDR_LEN);
+            else
+                memcpy(p->conn_addr, btm_cb.ble_ctr_cb.addr_mgnt_cb.private_addr, BD_ADDR_LEN);
+        }
+        else
+        {
+            p->conn_addr_type = BLE_ADDR_PUBLIC;
+            memcpy(p->conn_addr,&controller_get_interface()->get_address()->address, BD_ADDR_LEN);
+        }
+    }
+#endif
+}
+#endif
+
+
diff --git a/rtkbt/code/bt/stack/btm/btm_ble_adv_filter.c b/rtkbt/code/bt/stack/btm/btm_ble_adv_filter.c
new file mode 100755
index 0000000..9203613
--- /dev/null
+++ b/rtkbt/code/bt/stack/btm/btm_ble_adv_filter.c
@@ -0,0 +1,1341 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014  Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_btm_ble"
+
+#include <string.h>
+
+#include "bt_target.h"
+
+#if (BLE_INCLUDED == TRUE)
+
+#include "bt_types.h"
+#include "bt_utils.h"
+#include "btm_ble_api.h"
+#include "btm_int.h"
+#include "btu.h"
+#include "device/include/controller.h"
+#include "hcidefs.h"
+#include "hcimsgs.h"
+
+#define BTM_BLE_ADV_FILT_META_HDR_LENGTH 3
+#define BTM_BLE_ADV_FILT_FEAT_SELN_LEN  13
+#define BTM_BLE_ADV_FILT_TRACK_NUM       2
+
+#define BTM_BLE_PF_SELECT_NONE              0
+
+/* BLE meta vsc header: 1 bytes of sub_code, 1 byte of PCF action */
+#define BTM_BLE_META_HDR_LENGTH     3
+#define BTM_BLE_PF_FEAT_SEL_LEN     18
+#define BTM_BLE_PCF_ENABLE_LEN      2
+
+#define BTM_BLE_META_ADDR_LEN       7
+#define BTM_BLE_META_UUID_LEN       40
+
+#define BTM_BLE_PF_BIT_TO_MASK(x)          (UINT16)(1 << (x))
+
+tBTM_BLE_ADV_FILTER_CB btm_ble_adv_filt_cb;
+tBTM_BLE_VSC_CB cmn_ble_vsc_cb;
+static const BD_ADDR     na_bda= {0};
+
+static UINT8 btm_ble_cs_update_pf_counter(tBTM_BLE_SCAN_COND_OP action,
+                                  UINT8 cond_type, tBLE_BD_ADDR *p_bd_addr, UINT8 num_available);
+
+#define BTM_BLE_SET_SCAN_PF_OPCODE(x, y) (((x)<<4)|y)
+#define BTM_BLE_GET_SCAN_PF_SUBCODE(x)    ((x) >> 4)
+#define BTM_BLE_GET_SCAN_PF_ACTION(x)    ((x) & 0x0f)
+#define BTM_BLE_INVALID_COUNTER     0xff
+
+/* length of each multi adv sub command */
+#define BTM_BLE_ADV_FILTER_ENB_LEN                       3
+
+/* length of each batch scan command */
+#define BTM_BLE_ADV_FILTER_CLEAR_LEN            3
+#define BTM_BLE_ADV_FILTER_LEN     2
+
+#define BTM_BLE_ADV_FILT_CB_EVT_MASK       0xF0
+#define BTM_BLE_ADV_FILT_SUBCODE_MASK      0x0F
+
+/*******************************************************************************
+**
+** Function         btm_ble_obtain_vsc_details
+**
+** Description      This function obtains the VSC details
+**
+** Parameters
+**
+** Returns          status
+**
+*******************************************************************************/
+tBTM_STATUS btm_ble_obtain_vsc_details()
+{
+    tBTM_STATUS st = BTM_SUCCESS;
+
+#if BLE_VND_INCLUDED == TRUE
+    BTM_BleGetVendorCapabilities(&cmn_ble_vsc_cb);
+    if (0 == cmn_ble_vsc_cb.max_filter)
+    {
+        st = BTM_MODE_UNSUPPORTED;
+        return st;
+    }
+#else
+    cmn_ble_vsc_cb.max_filter = BTM_BLE_MAX_FILTER_COUNTER;
+#endif
+    return st;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_advfilt_enq_op_q
+**
+** Description      enqueue an adv filter operation in q to check command complete
+**                  status
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_ble_advfilt_enq_op_q(UINT8 action, UINT8 ocf, tBTM_BLE_FILT_CB_EVT cb_evt,
+                              tBTM_BLE_REF_VALUE ref, tBTM_BLE_PF_CFG_CBACK *p_cmpl_cback,
+                              tBTM_BLE_PF_PARAM_CBACK  *p_filt_param_cback)
+{
+    btm_ble_adv_filt_cb.op_q.action_ocf[btm_ble_adv_filt_cb.op_q.next_idx] = (action |(ocf << 4));
+    btm_ble_adv_filt_cb.op_q.ref_value[btm_ble_adv_filt_cb.op_q.next_idx] = ref;
+    btm_ble_adv_filt_cb.op_q.cb_evt[btm_ble_adv_filt_cb.op_q.next_idx] = cb_evt;
+    btm_ble_adv_filt_cb.op_q.p_scan_cfg_cback[btm_ble_adv_filt_cb.op_q.next_idx] = p_cmpl_cback;
+    btm_ble_adv_filt_cb.op_q.p_filt_param_cback[btm_ble_adv_filt_cb.op_q.next_idx]
+        = p_filt_param_cback;
+    BTM_TRACE_DEBUG("btm_ble_advfilt_enq_op_q: act_ocf:%d, action:%d, ocf:%d,cb_evt;%d, cback:%x",
+        btm_ble_adv_filt_cb.op_q.action_ocf[btm_ble_adv_filt_cb.op_q.next_idx], action,
+        ocf, cb_evt, p_cmpl_cback);
+    btm_ble_adv_filt_cb.op_q.next_idx = (btm_ble_adv_filt_cb.op_q.next_idx + 1)
+                    % BTM_BLE_PF_TYPE_MAX;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_advfilt_deq_op_q
+**
+** Description      dequeue an adv filter operation from q when command complete
+**                  is received
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_ble_advfilt_deq_op_q(UINT8 *p_action,UINT8 *p_ocf, tBTM_BLE_FILT_CB_EVT *p_cb_evt,
+                              tBTM_BLE_REF_VALUE *p_ref, tBTM_BLE_PF_CFG_CBACK ** p_cmpl_cback,
+                              tBTM_BLE_PF_PARAM_CBACK  **p_filt_param_cback)
+{
+    *p_ocf = (btm_ble_adv_filt_cb.op_q.action_ocf[btm_ble_adv_filt_cb.op_q.pending_idx] >> 4);
+    *p_action = (btm_ble_adv_filt_cb.op_q.action_ocf[btm_ble_adv_filt_cb.op_q.pending_idx]
+                & BTM_BLE_ADV_FILT_SUBCODE_MASK);
+    *p_ref = btm_ble_adv_filt_cb.op_q.ref_value[btm_ble_adv_filt_cb.op_q.pending_idx];
+    *p_cb_evt = btm_ble_adv_filt_cb.op_q.cb_evt[btm_ble_adv_filt_cb.op_q.pending_idx];
+    *p_cmpl_cback = btm_ble_adv_filt_cb.op_q.p_scan_cfg_cback[btm_ble_adv_filt_cb.op_q.pending_idx];
+    *p_filt_param_cback =
+        btm_ble_adv_filt_cb.op_q.p_filt_param_cback[btm_ble_adv_filt_cb.op_q.pending_idx];
+
+    btm_ble_adv_filt_cb.op_q.pending_idx = (btm_ble_adv_filt_cb.op_q.pending_idx + 1)
+        % BTM_BLE_PF_TYPE_MAX;
+    BTM_TRACE_DEBUG("btm_ble_advfilt_deq_op_q: ocf:%d, action:%d, ref_value:%d, cb_evt:%x",
+        *p_ocf,*p_action, *p_ref, *p_cb_evt);
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_condtype_to_ocf
+**
+** Description      Convert cond_type to OCF
+**
+** Returns          Returns ocf value
+**
+*******************************************************************************/
+UINT8 btm_ble_condtype_to_ocf(UINT8 cond_type)
+{
+    UINT8 ocf = 0;
+
+    switch(cond_type)
+    {
+        case BTM_BLE_PF_ADDR_FILTER:
+          ocf = BTM_BLE_META_PF_ADDR;
+          break;
+        case BTM_BLE_PF_SRVC_UUID:
+          ocf = BTM_BLE_META_PF_UUID;
+          break;
+        case BTM_BLE_PF_SRVC_SOL_UUID:
+           ocf = BTM_BLE_META_PF_SOL_UUID;
+           break;
+        case BTM_BLE_PF_LOCAL_NAME:
+           ocf = BTM_BLE_META_PF_LOCAL_NAME;
+           break;
+        case BTM_BLE_PF_MANU_DATA:
+           ocf = BTM_BLE_META_PF_MANU_DATA;
+           break;
+        case BTM_BLE_PF_SRVC_DATA_PATTERN:
+           ocf = BTM_BLE_META_PF_SRVC_DATA;
+           break;
+        case BTM_BLE_PF_TYPE_ALL:
+           ocf = BTM_BLE_META_PF_ALL;
+           break;
+        default:
+           ocf = BTM_BLE_PF_TYPE_MAX;
+           break;
+    }
+    return ocf;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_ocf_to_condtype
+**
+** Description      Convert OCF to cond type
+**
+** Returns          Returns condtype value
+**
+*******************************************************************************/
+UINT8 btm_ble_ocf_to_condtype(UINT8 ocf)
+{
+    UINT8 cond_type = 0;
+
+    switch(ocf)
+    {
+        case BTM_BLE_META_PF_FEAT_SEL:
+           cond_type = BTM_BLE_META_PF_FEAT_SEL;
+           break;
+        case BTM_BLE_META_PF_ADDR:
+          cond_type = BTM_BLE_PF_ADDR_FILTER;
+          break;
+        case BTM_BLE_META_PF_UUID:
+          cond_type = BTM_BLE_PF_SRVC_UUID;
+          break;
+        case BTM_BLE_META_PF_SOL_UUID:
+           cond_type = BTM_BLE_PF_SRVC_SOL_UUID;
+           break;
+        case BTM_BLE_META_PF_LOCAL_NAME:
+           cond_type = BTM_BLE_PF_LOCAL_NAME;
+           break;
+        case BTM_BLE_META_PF_MANU_DATA:
+           cond_type = BTM_BLE_PF_MANU_DATA;
+           break;
+        case BTM_BLE_META_PF_SRVC_DATA:
+           cond_type = BTM_BLE_PF_SRVC_DATA_PATTERN;
+           break;
+        case BTM_BLE_META_PF_ALL:
+           cond_type = BTM_BLE_PF_TYPE_ALL;
+           break;
+        default:
+           cond_type = BTM_BLE_PF_TYPE_MAX;
+           break;
+    }
+    return cond_type;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_scan_pf_cmpl_cback
+**
+** Description      the BTM BLE customer feature VSC complete callback for ADV PF filtering
+**
+** Returns          pointer to the counter if found; NULL otherwise.
+**
+*******************************************************************************/
+void btm_ble_scan_pf_cmpl_cback(tBTM_VSC_CMPL *p_params)
+{
+    UINT8  status = 0;
+    UINT8  *p = p_params->p_param_buf, op_subcode = 0, action = 0xff;
+    UINT16  evt_len = p_params->param_len;
+    UINT8   ocf = BTM_BLE_META_PF_ALL, cond_type = 0;
+    UINT8   num_avail = 0, cb_evt = 0;
+    tBTM_BLE_REF_VALUE ref_value = 0;
+    tBTM_BLE_PF_CFG_CBACK *p_scan_cfg_cback = NULL;
+    tBTM_BLE_PF_PARAM_CBACK *p_filt_param_cback = NULL;
+
+    if (evt_len < 3 || evt_len > 4)
+    {
+      BTM_TRACE_ERROR("%s cannot interpret APCF callback status = %d, length = %d",
+          __func__, status, evt_len);
+        btm_ble_advfilt_deq_op_q(&action, &ocf, &cb_evt, &ref_value, &p_scan_cfg_cback,
+                                 &p_filt_param_cback);
+        return;
+    }
+
+    btm_ble_advfilt_deq_op_q(&action, &ocf, &cb_evt, &ref_value, &p_scan_cfg_cback,
+                             &p_filt_param_cback);
+
+    STREAM_TO_UINT8(status, p);
+    STREAM_TO_UINT8(op_subcode, p);
+    STREAM_TO_UINT8(action, p);
+
+    /* Ignore the event, if it is not the same one expected */
+    if (3 == evt_len)
+    {
+        if(ocf != op_subcode)
+        {
+             BTM_TRACE_ERROR("btm_ble_scan_pf_cmpl_cback:3-Incorrect opcode :%d, %d, %d, %d, %d, %d",
+                                        ocf, op_subcode, action, evt_len, ref_value, status);
+             return;
+        }
+        else
+        {
+            if(NULL != btm_ble_adv_filt_cb.p_filt_stat_cback)
+               btm_ble_adv_filt_cb.p_filt_stat_cback(action, status, ref_value);
+            BTM_TRACE_DEBUG("btm_ble_scan_pf_cmpl_cback enabled/disabled, %d, %d, %d, %d",
+                                         ocf, action, status, ref_value);
+            return;
+        }
+    }
+
+    if (4 == evt_len && ocf != op_subcode)
+    {
+        BTM_TRACE_ERROR("btm_ble_scan_pf_cmpl_cback:4-Incorrect opcode: %d, %d, %d, %d, %d",
+                                ocf, op_subcode, action, status, ref_value);
+        return;
+    }
+
+    STREAM_TO_UINT8(num_avail, p);
+    switch (op_subcode)
+    {
+        case BTM_BLE_META_PF_ADDR:
+        case BTM_BLE_META_PF_UUID:
+        case BTM_BLE_META_PF_SOL_UUID:
+        case BTM_BLE_META_PF_LOCAL_NAME:
+        case BTM_BLE_META_PF_MANU_DATA:
+        case BTM_BLE_META_PF_SRVC_DATA:
+           cond_type = btm_ble_ocf_to_condtype(ocf);
+           BTM_TRACE_DEBUG("btm_ble_scan_pf_cmpl_cback Recd: %d, %d, %d, %d, %d, %d", op_subcode,
+                                        ocf, action, status, ref_value, num_avail);
+           if (HCI_SUCCESS == status)
+           {
+               if (memcmp(&btm_ble_adv_filt_cb.cur_filter_target.bda, &na_bda, BD_ADDR_LEN) == 0)
+                   btm_ble_cs_update_pf_counter(action, cond_type, NULL, num_avail);
+               else
+                   btm_ble_cs_update_pf_counter(action, cond_type,
+                            &btm_ble_adv_filt_cb.cur_filter_target, num_avail);
+           }
+
+           /* send ADV PF operation complete */
+           btm_ble_adv_filt_cb.op_type = 0;
+           break;
+
+        case BTM_BLE_META_PF_FEAT_SEL:
+            BTM_TRACE_DEBUG("btm_ble_scan_pf_cmpl_cback-Feat sel event: %d, %d, %d, %d",
+                                action, status, ref_value, num_avail);
+            break;
+
+        default:
+            BTM_TRACE_ERROR("btm_ble_scan_pf_cmpl_cback: unknown operation: %d", op_subcode);
+            break;
+    }
+
+    switch(cb_evt)
+    {
+        BTM_TRACE_DEBUG("btm_ble_scan_pf_cmpl_cback: calling the cback: %d", cb_evt);
+        case BTM_BLE_FILT_CFG:
+            if(NULL != p_scan_cfg_cback)
+               p_scan_cfg_cback(action, cond_type, num_avail, status, ref_value);
+            break;
+        case BTM_BLE_FILT_ADV_PARAM:
+            if(NULL != p_filt_param_cback)
+               p_filt_param_cback(action, num_avail, ref_value, status);
+            break;
+        default:
+            break;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_find_addr_filter_counter
+**
+** Description      find the per bd address ADV payload filter counter by BD_ADDR.
+**
+** Returns          pointer to the counter if found; NULL otherwise.
+**
+*******************************************************************************/
+tBTM_BLE_PF_COUNT* btm_ble_find_addr_filter_counter(tBLE_BD_ADDR *p_le_bda)
+{
+    UINT8               i;
+    tBTM_BLE_PF_COUNT   *p_addr_filter = &btm_ble_adv_filt_cb.p_addr_filter_count[1];
+
+    if (p_le_bda == NULL)
+        return &btm_ble_adv_filt_cb.p_addr_filter_count[0];
+
+    for (i = 0; i < cmn_ble_vsc_cb.max_filter; i ++, p_addr_filter ++)
+    {
+        if (p_addr_filter->in_use &&
+            memcmp(p_le_bda->bda, p_addr_filter->bd_addr, BD_ADDR_LEN) == 0)
+        {
+            return p_addr_filter;
+        }
+    }
+    return NULL;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_alloc_addr_filter_counter
+**
+** Description      allocate the per device adv payload filter counter.
+**
+** Returns          pointer to the counter if allocation succeed; NULL otherwise.
+**
+*******************************************************************************/
+tBTM_BLE_PF_COUNT * btm_ble_alloc_addr_filter_counter(BD_ADDR bd_addr)
+{
+    UINT8               i;
+    tBTM_BLE_PF_COUNT   *p_addr_filter = &btm_ble_adv_filt_cb.p_addr_filter_count[1];
+
+    for (i = 0; i < cmn_ble_vsc_cb.max_filter; i ++, p_addr_filter ++)
+    {
+        if (memcmp(na_bda, p_addr_filter->bd_addr, BD_ADDR_LEN) == 0)
+        {
+            memcpy(p_addr_filter->bd_addr, bd_addr, BD_ADDR_LEN);
+            p_addr_filter->in_use = TRUE;
+            return p_addr_filter;
+        }
+    }
+    return NULL;
+}
+/*******************************************************************************
+**
+** Function         btm_ble_dealloc_addr_filter_counter
+**
+** Description      de-allocate the per device adv payload filter counter.
+**
+** Returns          TRUE if deallocation succeed; FALSE otherwise.
+**
+*******************************************************************************/
+BOOLEAN btm_ble_dealloc_addr_filter_counter(tBLE_BD_ADDR *p_bd_addr, UINT8 filter_type)
+{
+    UINT8               i;
+    tBTM_BLE_PF_COUNT   *p_addr_filter = &btm_ble_adv_filt_cb.p_addr_filter_count[1];
+    BOOLEAN             found = FALSE;
+
+    if (BTM_BLE_PF_TYPE_ALL == filter_type && NULL == p_bd_addr)
+        memset(&btm_ble_adv_filt_cb.p_addr_filter_count[0], 0, sizeof(tBTM_BLE_PF_COUNT));
+
+    for (i = 0; i < cmn_ble_vsc_cb.max_filter; i ++, p_addr_filter ++)
+    {
+        if ((p_addr_filter->in_use) && (NULL == p_bd_addr ||
+            (NULL != p_bd_addr &&
+            memcmp(p_bd_addr->bda, p_addr_filter->bd_addr, BD_ADDR_LEN) == 0)))
+        {
+            found = TRUE;
+            memset(p_addr_filter, 0, sizeof(tBTM_BLE_PF_COUNT));
+
+            if (NULL != p_bd_addr) break;
+        }
+    }
+    return found;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_update_pf_local_name
+**
+** Description      this function update(add,delete or clear) the adv lcoal name filtering condition.
+**
+**
+** Returns          BTM_SUCCESS if sucessful,
+**                  BTM_ILLEGAL_VALUE if paramter is not valid.
+**
+*******************************************************************************/
+tBTM_STATUS btm_ble_update_pf_local_name(tBTM_BLE_SCAN_COND_OP action,
+                                         tBTM_BLE_PF_FILT_INDEX filt_index,
+                                         tBTM_BLE_PF_COND_PARAM *p_cond)
+{
+    tBTM_BLE_PF_LOCAL_NAME_COND *p_local_name = (p_cond == NULL) ? NULL : &p_cond->local_name;
+    UINT8       param[BTM_BLE_PF_STR_LEN_MAX + BTM_BLE_ADV_FILT_META_HDR_LENGTH],
+                *p = param,
+                len = BTM_BLE_ADV_FILT_META_HDR_LENGTH;
+    tBTM_STATUS st = BTM_ILLEGAL_VALUE;
+
+    memset(param, 0, BTM_BLE_PF_STR_LEN_MAX + BTM_BLE_ADV_FILT_META_HDR_LENGTH);
+
+    UINT8_TO_STREAM(p, BTM_BLE_META_PF_LOCAL_NAME);
+    UINT8_TO_STREAM(p, action);
+
+    /* Filter index */
+    UINT8_TO_STREAM(p, filt_index);
+
+    if (BTM_BLE_SCAN_COND_ADD == action ||
+        BTM_BLE_SCAN_COND_DELETE == action)
+    {
+        if (NULL == p_local_name)
+            return st;
+
+        if (p_local_name->data_len > BTM_BLE_PF_STR_LEN_MAX)
+            p_local_name->data_len = BTM_BLE_PF_STR_LEN_MAX;
+
+        ARRAY_TO_STREAM(p, p_local_name->p_data, p_local_name->data_len);
+        len += p_local_name->data_len;
+    }
+
+    /* send local name filter */
+    if ((st = BTM_VendorSpecificCommand (HCI_BLE_ADV_FILTER_OCF,
+                              len,
+                              param,
+                              btm_ble_scan_pf_cmpl_cback))
+            != BTM_NO_RESOURCES)
+    {
+        memset(&btm_ble_adv_filt_cb.cur_filter_target, 0, sizeof(tBLE_BD_ADDR));
+    }
+    else
+    {
+        BTM_TRACE_ERROR("Local Name PF filter update failed");
+    }
+
+    return st;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_update_srvc_data_change
+**
+** Description      this function update(add/remove) service data change filter.
+**
+**
+** Returns          BTM_SUCCESS if sucessful,
+**                  BTM_ILLEGAL_VALUE if paramter is not valid.
+**
+*******************************************************************************/
+tBTM_STATUS btm_ble_update_srvc_data_change(tBTM_BLE_SCAN_COND_OP action,
+                                       tBTM_BLE_PF_FILT_INDEX filt_index,
+                                       tBTM_BLE_PF_COND_PARAM *p_cond)
+{
+    tBTM_STATUS st = BTM_ILLEGAL_VALUE;
+    tBLE_BD_ADDR   *p_bd_addr = p_cond ? &p_cond->target_addr : NULL;
+    UINT8           num_avail = (action == BTM_BLE_SCAN_COND_ADD) ? 0 : 1;
+
+    if (btm_ble_cs_update_pf_counter (action, BTM_BLE_PF_SRVC_DATA, p_bd_addr, num_avail)
+                    != BTM_BLE_INVALID_COUNTER)
+        st = BTM_SUCCESS;
+
+    return st;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_update_pf_manu_data
+**
+** Description      this function update(add,delete or clear) the adv manufacturer
+**                  data filtering condition.
+**
+**
+** Returns          BTM_SUCCESS if sucessful,
+**                  BTM_ILLEGAL_VALUE if paramter is not valid.
+**
+*******************************************************************************/
+tBTM_STATUS btm_ble_update_pf_manu_data(tBTM_BLE_SCAN_COND_OP action,
+                                        tBTM_BLE_PF_FILT_INDEX filt_index,
+                                        tBTM_BLE_PF_COND_PARAM *p_data,
+                                        tBTM_BLE_PF_COND_TYPE cond_type,
+                                        tBTM_BLE_FILT_CB_EVT cb_evt,
+                                        tBTM_BLE_REF_VALUE ref_value)
+{
+    tBTM_BLE_PF_MANU_COND *p_manu_data = (p_data == NULL) ? NULL : &p_data->manu_data;
+    tBTM_BLE_PF_SRVC_PATTERN_COND *p_srvc_data = (p_data == NULL) ? NULL : &p_data->srvc_data;
+
+    UINT8 param[BTM_BLE_PF_STR_LEN_MAX + BTM_BLE_PF_STR_LEN_MAX + BTM_BLE_ADV_FILT_META_HDR_LENGTH],
+          *p = param,
+          len = BTM_BLE_ADV_FILT_META_HDR_LENGTH;
+    tBTM_STATUS st = BTM_ILLEGAL_VALUE;
+
+    if (NULL == p_data)
+        return st;
+
+    memset(param, 0, BTM_BLE_PF_STR_LEN_MAX + BTM_BLE_PF_STR_LEN_MAX
+                    + BTM_BLE_ADV_FILT_META_HDR_LENGTH);
+
+    if (BTM_BLE_PF_SRVC_DATA_PATTERN == cond_type)
+    {
+        UINT8_TO_STREAM(p, BTM_BLE_META_PF_SRVC_DATA);
+    }
+    else
+    {
+        UINT8_TO_STREAM(p, BTM_BLE_META_PF_MANU_DATA);
+    }
+
+    UINT8_TO_STREAM(p, action);
+
+    /* Filter index */
+    UINT8_TO_STREAM(p, filt_index);
+
+    if (BTM_BLE_SCAN_COND_ADD == action || BTM_BLE_SCAN_COND_DELETE == action)
+    {
+        if (BTM_BLE_PF_SRVC_DATA_PATTERN == cond_type)
+        {
+            if (NULL == p_srvc_data)
+                return st;
+            if (p_srvc_data->data_len > (BTM_BLE_PF_STR_LEN_MAX - 2))
+                p_srvc_data->data_len = (BTM_BLE_PF_STR_LEN_MAX - 2);
+
+            if (p_srvc_data->data_len > 0)
+            {
+                ARRAY_TO_STREAM(p, p_srvc_data->p_pattern, p_srvc_data->data_len);
+                len += (p_srvc_data->data_len);
+                ARRAY_TO_STREAM(p, p_srvc_data->p_pattern_mask, p_srvc_data->data_len);
+            }
+
+            len += (p_srvc_data->data_len);
+            BTM_TRACE_DEBUG("Service data length: %d", len);
+        }
+        else
+        {
+            if (NULL == p_manu_data)
+            {
+                BTM_TRACE_ERROR("btm_ble_update_pf_manu_data - No manuf data");
+                return st;
+            }
+            BTM_TRACE_EVENT("btm_ble_update_pf_manu_data length: %d",
+                                    p_manu_data->data_len);
+            if (p_manu_data->data_len > (BTM_BLE_PF_STR_LEN_MAX - 2))
+                p_manu_data->data_len = (BTM_BLE_PF_STR_LEN_MAX - 2);
+
+            UINT16_TO_STREAM(p, p_manu_data->company_id);
+            if (p_manu_data->data_len > 0 && p_manu_data->p_pattern_mask != NULL)
+            {
+                ARRAY_TO_STREAM(p, p_manu_data->p_pattern, p_manu_data->data_len);
+                len += (p_manu_data->data_len + 2);
+            }
+            else
+                len += 2;
+
+            if (p_manu_data->company_id_mask != 0)
+            {
+                UINT16_TO_STREAM (p, p_manu_data->company_id_mask);
+            }
+            else
+            {
+                memset(p, 0xff, 2);
+                p += 2;
+            }
+            len += 2;
+
+            if (p_manu_data->data_len > 0 && p_manu_data->p_pattern_mask != NULL)
+            {
+                ARRAY_TO_STREAM(p, p_manu_data->p_pattern_mask, p_manu_data->data_len);
+                len += (p_manu_data->data_len);
+            }
+
+            BTM_TRACE_DEBUG("Manuf data length: %d", len);
+        }
+    }
+
+    /* send manufacturer*/
+    if ((st = BTM_VendorSpecificCommand (HCI_BLE_ADV_FILTER_OCF,
+                              len,
+                              param,
+                              btm_ble_scan_pf_cmpl_cback)) != BTM_NO_RESOURCES)
+    {
+        memset(&btm_ble_adv_filt_cb.cur_filter_target, 0, sizeof(tBLE_BD_ADDR));
+    }
+    else
+    {
+        BTM_TRACE_ERROR("manufacturer data PF filter update failed");
+    }
+
+    return st;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_cs_update_pf_counter
+**
+** Description      this function is to update the adv data payload filter counter
+**
+** Returns          current number of the counter; BTM_BLE_INVALID_COUNTER if
+**                  counter update failed.
+**
+*******************************************************************************/
+UINT8 btm_ble_cs_update_pf_counter(tBTM_BLE_SCAN_COND_OP action,
+                                  UINT8 cond_type, tBLE_BD_ADDR *p_bd_addr,
+                                  UINT8 num_available)
+{
+    tBTM_BLE_PF_COUNT   *p_addr_filter = NULL;
+    UINT8               *p_counter = NULL;
+
+    btm_ble_obtain_vsc_details();
+
+    if (cond_type > BTM_BLE_PF_TYPE_ALL)
+    {
+        BTM_TRACE_ERROR("unknown PF filter condition type %d", cond_type);
+        return BTM_BLE_INVALID_COUNTER;
+    }
+
+    /* for these three types of filter, always generic */
+    if (BTM_BLE_PF_ADDR_FILTER == cond_type ||
+        BTM_BLE_PF_MANU_DATA == cond_type ||
+        BTM_BLE_PF_LOCAL_NAME == cond_type ||
+        BTM_BLE_PF_SRVC_DATA_PATTERN == cond_type)
+        p_bd_addr = NULL;
+
+    if ((p_addr_filter = btm_ble_find_addr_filter_counter(p_bd_addr)) == NULL &&
+        BTM_BLE_SCAN_COND_ADD == action)
+    {
+        p_addr_filter = btm_ble_alloc_addr_filter_counter(p_bd_addr->bda);
+    }
+
+    if (NULL != p_addr_filter)
+    {
+        /* all filter just cleared */
+        if ((BTM_BLE_PF_TYPE_ALL == cond_type && BTM_BLE_SCAN_COND_CLEAR == action) ||
+            /* or bd address filter been deleted */
+            (BTM_BLE_PF_ADDR_FILTER == cond_type &&
+             (BTM_BLE_SCAN_COND_DELETE == action || BTM_BLE_SCAN_COND_CLEAR == action)))
+        {
+            btm_ble_dealloc_addr_filter_counter(p_bd_addr, cond_type);
+        }
+        /* if not feature selection, update new addition/reduction of the filter counter */
+        else if (cond_type != BTM_BLE_PF_TYPE_ALL)
+        {
+            p_counter = p_addr_filter->pf_counter;
+            if (num_available > 0)
+                p_counter[cond_type] += 1;
+
+            BTM_TRACE_DEBUG("counter = %d, maxfilt = %d, num_avbl=%d",
+                p_counter[cond_type], cmn_ble_vsc_cb.max_filter, num_available);
+            return p_counter[cond_type];
+        }
+    }
+    else
+    {
+        BTM_TRACE_ERROR("no matching filter counter found");
+    }
+    /* no matching filter located and updated */
+    return BTM_BLE_INVALID_COUNTER;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_update_addr_filter
+**
+** Description      this function update(add,delete or clear) the address filter of adv.
+**
+**
+** Returns          BTM_SUCCESS if sucessful,
+**                  BTM_ILLEGAL_VALUE if paramter is not valid.
+**
+*******************************************************************************/
+tBTM_STATUS btm_ble_update_addr_filter(tBTM_BLE_SCAN_COND_OP action,
+                                       tBTM_BLE_PF_FILT_INDEX filt_index,
+                                       tBTM_BLE_PF_COND_PARAM *p_cond)
+{
+    UINT8       param[BTM_BLE_META_ADDR_LEN + BTM_BLE_ADV_FILT_META_HDR_LENGTH],
+                * p= param;
+    tBTM_STATUS st = BTM_ILLEGAL_VALUE;
+    tBLE_BD_ADDR *p_addr = (p_cond == NULL) ? NULL : &p_cond->target_addr;
+
+    memset(param, 0, BTM_BLE_META_ADDR_LEN + BTM_BLE_ADV_FILT_META_HDR_LENGTH);
+
+    UINT8_TO_STREAM(p, BTM_BLE_META_PF_ADDR);
+    UINT8_TO_STREAM(p, action);
+
+    /* Filter index */
+    UINT8_TO_STREAM(p, filt_index);
+
+    if (BTM_BLE_SCAN_COND_ADD == action ||
+        BTM_BLE_SCAN_COND_DELETE == action)
+    {
+        if (NULL == p_addr)
+            return st;
+
+        BDADDR_TO_STREAM(p, p_addr->bda);
+        UINT8_TO_STREAM(p, p_addr->type);
+    }
+    /* send address filter */
+    if ((st = BTM_VendorSpecificCommand (HCI_BLE_ADV_FILTER_OCF,
+                              (UINT8)(BTM_BLE_ADV_FILT_META_HDR_LENGTH + BTM_BLE_META_ADDR_LEN),
+                              param,
+                              btm_ble_scan_pf_cmpl_cback)) != BTM_NO_RESOURCES)
+    {
+        memset(&btm_ble_adv_filt_cb.cur_filter_target, 0, sizeof(tBLE_BD_ADDR));
+    }
+    else
+    {
+        BTM_TRACE_ERROR("Broadcaster Address Filter Update failed");
+    }
+    return st;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_update_uuid_filter
+**
+** Description      this function update(add,delete or clear) service UUID filter.
+**
+**
+** Returns          BTM_SUCCESS if sucessful,
+**                  BTM_ILLEGAL_VALUE if paramter is not valid.
+**
+*******************************************************************************/
+tBTM_STATUS btm_ble_update_uuid_filter(tBTM_BLE_SCAN_COND_OP action,
+                                       tBTM_BLE_PF_FILT_INDEX filt_index,
+                                       tBTM_BLE_PF_COND_TYPE filter_type,
+                                       tBTM_BLE_PF_COND_PARAM *p_cond,
+                                       tBTM_BLE_FILT_CB_EVT cb_evt,
+                                       tBTM_BLE_REF_VALUE ref_value)
+{
+    UINT8       param[BTM_BLE_META_UUID_LEN + BTM_BLE_ADV_FILT_META_HDR_LENGTH],
+                * p= param,
+                len = BTM_BLE_ADV_FILT_META_HDR_LENGTH;
+    tBTM_STATUS st = BTM_ILLEGAL_VALUE;
+    tBTM_BLE_PF_UUID_COND *p_uuid_cond;
+    UINT8           evt_type;
+
+    memset(param, 0, BTM_BLE_META_UUID_LEN + BTM_BLE_ADV_FILT_META_HDR_LENGTH);
+
+    if (BTM_BLE_PF_SRVC_UUID == filter_type)
+    {
+        evt_type = BTM_BLE_META_PF_UUID;
+        p_uuid_cond = p_cond ? &p_cond->srvc_uuid : NULL;
+    }
+    else
+    {
+        evt_type = BTM_BLE_META_PF_SOL_UUID;
+        p_uuid_cond = p_cond ? &p_cond->solicitate_uuid : NULL;
+    }
+
+    if (NULL == p_uuid_cond && action != BTM_BLE_SCAN_COND_CLEAR)
+    {
+        BTM_TRACE_ERROR("Illegal param for add/delete UUID filter");
+        return st;
+    }
+
+    /* need to add address filter first, if adding per bda UUID filter without address filter */
+    if (BTM_BLE_SCAN_COND_ADD == action && NULL != p_uuid_cond &&
+        p_uuid_cond->p_target_addr &&
+        btm_ble_find_addr_filter_counter(p_uuid_cond->p_target_addr) == NULL)
+    {
+        UINT8_TO_STREAM(p, BTM_BLE_META_PF_ADDR);
+        UINT8_TO_STREAM(p, action);
+
+        /* Filter index */
+        UINT8_TO_STREAM(p, filt_index);
+
+        BDADDR_TO_STREAM(p, p_uuid_cond->p_target_addr->bda);
+        UINT8_TO_STREAM(p, p_uuid_cond->p_target_addr->type);
+
+        /* send address filter */
+        if ((st = BTM_VendorSpecificCommand (HCI_BLE_ADV_FILTER_OCF,
+                                  (UINT8)(BTM_BLE_ADV_FILT_META_HDR_LENGTH + BTM_BLE_META_ADDR_LEN),
+                                  param,
+                                  btm_ble_scan_pf_cmpl_cback)) == BTM_NO_RESOURCES)
+        {
+            BTM_TRACE_ERROR("Update Address filter into controller failed.");
+            return st;
+        }
+
+        btm_ble_advfilt_enq_op_q(action, BTM_BLE_META_PF_ADDR, cb_evt, ref_value, NULL, NULL);
+        BTM_TRACE_DEBUG("Updated Address filter");
+    }
+
+    p = param;
+    UINT8_TO_STREAM(p, evt_type);
+    UINT8_TO_STREAM(p, action);
+
+    /* Filter index */
+    UINT8_TO_STREAM(p, filt_index);
+
+    if ((BTM_BLE_SCAN_COND_ADD == action ||
+        BTM_BLE_SCAN_COND_DELETE == action) &&
+        NULL != p_uuid_cond)
+    {
+        if (p_uuid_cond->uuid.len == LEN_UUID_16)
+        {
+            UINT16_TO_STREAM(p, p_uuid_cond->uuid.uu.uuid16);
+            len += LEN_UUID_16;
+        }
+        else if (p_uuid_cond->uuid.len == LEN_UUID_32)/*4 bytes */
+        {
+            UINT32_TO_STREAM(p, p_uuid_cond->uuid.uu.uuid32);
+            len += LEN_UUID_32;
+        }
+        else if (p_uuid_cond->uuid.len == LEN_UUID_128)
+        {
+            ARRAY_TO_STREAM (p, p_uuid_cond->uuid.uu.uuid128, LEN_UUID_128);
+            len += LEN_UUID_128;
+        }
+        else
+        {
+            BTM_TRACE_ERROR("illegal UUID length: %d", p_uuid_cond->uuid.len);
+            return BTM_ILLEGAL_VALUE;
+        }
+
+        if (NULL != p_uuid_cond->p_uuid_mask)
+        {
+            if (p_uuid_cond->uuid.len == LEN_UUID_16)
+            {
+                UINT16_TO_STREAM(p, p_uuid_cond->p_uuid_mask->uuid16_mask);
+                len += LEN_UUID_16;
+            }
+            else if (p_uuid_cond->uuid.len == LEN_UUID_32)/*4 bytes */
+            {
+                UINT32_TO_STREAM(p, p_uuid_cond->p_uuid_mask->uuid32_mask);
+                len += LEN_UUID_32;
+            }
+            else if (p_uuid_cond->uuid.len == LEN_UUID_128)
+            {
+                ARRAY_TO_STREAM (p, p_uuid_cond->p_uuid_mask->uuid128_mask, LEN_UUID_128);
+                len += LEN_UUID_128;
+            }
+        }
+        else
+        {
+            memset(p, 0xff, p_uuid_cond->uuid.len);
+            len += p_uuid_cond->uuid.len;
+        }
+        BTM_TRACE_DEBUG("btm_ble_update_uuid_filter : %d, %d, %d, %d", filter_type, evt_type,
+                        p_uuid_cond->uuid.len, len);
+    }
+
+    /* send UUID filter update */
+    if ((st = BTM_VendorSpecificCommand (HCI_BLE_ADV_FILTER_OCF,
+                              len,
+                              param,
+                              btm_ble_scan_pf_cmpl_cback)) != BTM_NO_RESOURCES)
+    {
+        if (p_uuid_cond && p_uuid_cond->p_target_addr)
+            memcpy(&btm_ble_adv_filt_cb.cur_filter_target, p_uuid_cond->p_target_addr,
+                    sizeof(tBLE_BD_ADDR));
+        else
+            memset(&btm_ble_adv_filt_cb.cur_filter_target, 0, sizeof(tBLE_BD_ADDR));
+    }
+    else
+    {
+        BTM_TRACE_ERROR("UUID filter udpating failed");
+    }
+
+    return st;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_clear_scan_pf_filter
+**
+** Description      clear all adv payload filter by de-select all the adv pf feature bits
+**
+**
+** Returns          BTM_SUCCESS if sucessful,
+**                  BTM_ILLEGAL_VALUE if paramter is not valid.
+**
+*******************************************************************************/
+tBTM_STATUS btm_ble_clear_scan_pf_filter(tBTM_BLE_SCAN_COND_OP action,
+                                       tBTM_BLE_PF_FILT_INDEX filt_index,
+                                       tBTM_BLE_PF_COND_PARAM *p_cond,
+                                       tBTM_BLE_PF_CFG_CBACK *p_cmpl_cback,
+                                       tBTM_BLE_FILT_CB_EVT cb_evt,
+                                       tBTM_BLE_REF_VALUE ref_value)
+{
+    tBLE_BD_ADDR *p_target = (p_cond == NULL)? NULL : &p_cond->target_addr;
+    tBTM_BLE_PF_COUNT *p_bda_filter;
+    tBTM_STATUS     st = BTM_WRONG_MODE;
+    UINT8           param[20], *p;
+
+    if (BTM_BLE_SCAN_COND_CLEAR != action)
+    {
+        BTM_TRACE_ERROR("unable to perform action:%d for generic adv filter type", action);
+        return BTM_ILLEGAL_VALUE;
+    }
+
+    p = param;
+    memset(param, 0, 20);
+
+    p_bda_filter = btm_ble_find_addr_filter_counter(p_target);
+
+    if (NULL == p_bda_filter ||
+        /* not a generic filter */
+        (p_target != NULL && p_bda_filter))
+    {
+        BTM_TRACE_ERROR("Error: Can not clear filter, No PF filter has been configured!");
+        return st;
+    }
+
+    /* clear the general filter entry */
+    if (NULL == p_target)
+    {
+        /* clear manufactuer data filter */
+        st = btm_ble_update_pf_manu_data(BTM_BLE_SCAN_COND_CLEAR, filt_index, NULL,
+                                    BTM_BLE_PF_MANU_DATA, cb_evt, ref_value);
+        if(BTM_CMD_STARTED == st)
+           btm_ble_advfilt_enq_op_q(action, BTM_BLE_META_PF_MANU_DATA, cb_evt,
+                                    ref_value, NULL, NULL);
+
+        /* clear local name filter */
+        st = btm_ble_update_pf_local_name(BTM_BLE_SCAN_COND_CLEAR, filt_index, NULL);
+        if(BTM_CMD_STARTED == st)
+           btm_ble_advfilt_enq_op_q(action, BTM_BLE_META_PF_LOCAL_NAME, cb_evt,
+                                    ref_value, NULL, NULL);
+
+        /* update the counter for service data */
+        st = btm_ble_update_srvc_data_change(BTM_BLE_SCAN_COND_CLEAR, filt_index, NULL);
+
+        /* clear UUID filter */
+        st = btm_ble_update_uuid_filter(BTM_BLE_SCAN_COND_CLEAR, filt_index,
+                                   BTM_BLE_PF_SRVC_UUID, NULL, cb_evt, ref_value);
+        if(BTM_CMD_STARTED == st)
+           btm_ble_advfilt_enq_op_q(action, BTM_BLE_META_PF_UUID, cb_evt, ref_value, NULL, NULL);
+
+        st = btm_ble_update_uuid_filter(BTM_BLE_SCAN_COND_CLEAR, filt_index,
+                                   BTM_BLE_PF_SRVC_SOL_UUID, NULL, cb_evt, ref_value);
+        if(BTM_CMD_STARTED == st)
+           btm_ble_advfilt_enq_op_q(action, BTM_BLE_META_PF_SOL_UUID, cb_evt,
+                                    ref_value, NULL, NULL);
+
+        /* clear service data filter */
+        st = btm_ble_update_pf_manu_data(BTM_BLE_SCAN_COND_CLEAR, filt_index, NULL,
+                                    BTM_BLE_PF_SRVC_DATA_PATTERN, cb_evt, ref_value);
+        if(BTM_CMD_STARTED == st)
+           btm_ble_advfilt_enq_op_q(action, BTM_BLE_META_PF_SRVC_DATA, cb_evt,
+                                    ref_value, NULL, NULL);
+    }
+
+    /* select feature based on control block settings */
+    UINT8_TO_STREAM(p, BTM_BLE_META_PF_FEAT_SEL);
+    UINT8_TO_STREAM(p, BTM_BLE_SCAN_COND_CLEAR);
+
+    /* Filter index */
+    UINT8_TO_STREAM(p, filt_index);
+
+    /* set PCF selection */
+    UINT32_TO_STREAM(p, BTM_BLE_PF_SELECT_NONE);
+    /* set logic condition as OR as default */
+    UINT8_TO_STREAM(p, BTM_BLE_PF_LOGIC_OR);
+
+    if ((st = BTM_VendorSpecificCommand (HCI_BLE_ADV_FILTER_OCF,
+                               (UINT8)(BTM_BLE_ADV_FILT_META_HDR_LENGTH + BTM_BLE_PF_FEAT_SEL_LEN),
+                                param,
+                                btm_ble_scan_pf_cmpl_cback))
+            != BTM_NO_RESOURCES)
+    {
+        if (p_target)
+            memcpy(&btm_ble_adv_filt_cb.cur_filter_target, p_target, sizeof(tBLE_BD_ADDR));
+        else
+            memset(&btm_ble_adv_filt_cb.cur_filter_target, 0, sizeof(tBLE_BD_ADDR));
+    }
+    return st;
+}
+
+/*******************************************************************************
+**
+** Function         BTM_BleAdvFilterParamSetup
+**
+** Description      This function is called to setup the adv data payload filter
+**                  condition.
+**
+** Parameters       action - Type of action to be performed
+**                       filt_index - Filter index
+**                       p_filt_params - Filter parameters
+**                       p_target - Target device
+**                       p_cmpl_back - Callback pointer
+**                       ref_value - reference value
+**
+** Returns          void
+**
+*******************************************************************************/
+tBTM_STATUS BTM_BleAdvFilterParamSetup(int action, tBTM_BLE_PF_FILT_INDEX filt_index,
+                                tBTM_BLE_PF_FILT_PARAMS *p_filt_params,
+                                tBLE_BD_ADDR *p_target, tBTM_BLE_PF_PARAM_CBACK *p_cmpl_cback,
+                                tBTM_BLE_REF_VALUE ref_value)
+{
+    tBTM_STATUS st = BTM_WRONG_MODE;
+    tBTM_BLE_PF_COUNT *p_bda_filter = NULL;
+    UINT8 len = BTM_BLE_ADV_FILT_META_HDR_LENGTH + BTM_BLE_ADV_FILT_FEAT_SELN_LEN +
+                BTM_BLE_ADV_FILT_TRACK_NUM;
+    UINT8 param[len], *p;
+
+    if (BTM_SUCCESS  != btm_ble_obtain_vsc_details())
+        return st;
+
+    p = param;
+    memset(param, 0, len);
+    BTM_TRACE_EVENT (" BTM_BleAdvFilterParamSetup");
+
+    if (BTM_BLE_SCAN_COND_ADD == action)
+    {
+        p_bda_filter = btm_ble_find_addr_filter_counter(p_target);
+        if (NULL == p_bda_filter)
+        {
+           BTM_TRACE_ERROR("BD Address not found!");
+           return st;
+        }
+
+        BTM_TRACE_DEBUG("BTM_BleAdvFilterParamSetup : Feat mask:%d", p_filt_params->feat_seln);
+        /* select feature based on control block settings */
+        UINT8_TO_STREAM(p, BTM_BLE_META_PF_FEAT_SEL);
+        UINT8_TO_STREAM(p, BTM_BLE_SCAN_COND_ADD);
+
+        /* Filter index */
+        UINT8_TO_STREAM(p, filt_index);
+
+        /* set PCF selection */
+        UINT16_TO_STREAM(p, p_filt_params->feat_seln);
+        /* set logic type */
+        UINT16_TO_STREAM(p, p_filt_params->logic_type);
+        /* set logic condition */
+        UINT8_TO_STREAM(p, p_filt_params->filt_logic_type);
+        /* set RSSI high threshold */
+        UINT8_TO_STREAM(p, p_filt_params->rssi_high_thres);
+        /* set delivery mode */
+        UINT8_TO_STREAM(p, p_filt_params->dely_mode);
+
+        if (0x01 == p_filt_params->dely_mode)
+        {
+            /* set onfound timeout */
+            UINT16_TO_STREAM(p, p_filt_params->found_timeout);
+            /* set onfound timeout count*/
+            UINT8_TO_STREAM(p, p_filt_params->found_timeout_cnt);
+            /* set RSSI low threshold */
+            UINT8_TO_STREAM(p, p_filt_params->rssi_low_thres);
+            /* set onlost timeout */
+            UINT16_TO_STREAM(p, p_filt_params->lost_timeout);
+            /* set num_of_track_entries for firmware greater than L-release version */
+            if (cmn_ble_vsc_cb.version_supported > BTM_VSC_CHIP_CAPABILITY_L_VERSION)
+                UINT16_TO_STREAM(p, p_filt_params->num_of_tracking_entries);
+        }
+
+        if (cmn_ble_vsc_cb.version_supported == BTM_VSC_CHIP_CAPABILITY_L_VERSION)
+            len = BTM_BLE_ADV_FILT_META_HDR_LENGTH + BTM_BLE_ADV_FILT_FEAT_SELN_LEN;
+        else
+            len = BTM_BLE_ADV_FILT_META_HDR_LENGTH + BTM_BLE_ADV_FILT_FEAT_SELN_LEN +
+                  BTM_BLE_ADV_FILT_TRACK_NUM;
+
+        if ((st = BTM_VendorSpecificCommand (HCI_BLE_ADV_FILTER_OCF,
+                                (UINT8)len,
+                                 param,
+                                 btm_ble_scan_pf_cmpl_cback))
+               == BTM_NO_RESOURCES)
+        {
+            return st;
+        }
+        btm_ble_advfilt_enq_op_q(action, BTM_BLE_META_PF_FEAT_SEL, BTM_BLE_FILT_ADV_PARAM,
+                                 ref_value, NULL, p_cmpl_cback);
+    }
+    else
+    if (BTM_BLE_SCAN_COND_DELETE == action)
+    {
+        /* select feature based on control block settings */
+        UINT8_TO_STREAM(p, BTM_BLE_META_PF_FEAT_SEL);
+        UINT8_TO_STREAM(p, BTM_BLE_SCAN_COND_DELETE);
+        /* Filter index */
+        UINT8_TO_STREAM(p, filt_index);
+
+        if ((st = BTM_VendorSpecificCommand (HCI_BLE_ADV_FILTER_OCF,
+                                (UINT8)(BTM_BLE_ADV_FILT_META_HDR_LENGTH),
+                                 param,
+                                 btm_ble_scan_pf_cmpl_cback))
+               == BTM_NO_RESOURCES)
+        {
+            return st;
+        }
+        btm_ble_advfilt_enq_op_q(action, BTM_BLE_META_PF_FEAT_SEL,  BTM_BLE_FILT_ADV_PARAM,
+                                 ref_value, NULL, p_cmpl_cback);
+    }
+    else
+    if (BTM_BLE_SCAN_COND_CLEAR == action)
+    {
+        /* Deallocate all filters here */
+        btm_ble_dealloc_addr_filter_counter(NULL, BTM_BLE_PF_TYPE_ALL);
+
+        /* select feature based on control block settings */
+        UINT8_TO_STREAM(p, BTM_BLE_META_PF_FEAT_SEL);
+        UINT8_TO_STREAM(p, BTM_BLE_SCAN_COND_CLEAR);
+
+        if ((st = BTM_VendorSpecificCommand (HCI_BLE_ADV_FILTER_OCF,
+                                (UINT8)(BTM_BLE_ADV_FILT_META_HDR_LENGTH-1),
+                                 param,
+                                 btm_ble_scan_pf_cmpl_cback))
+               == BTM_NO_RESOURCES)
+        {
+            return st;
+        }
+        btm_ble_advfilt_enq_op_q(action, BTM_BLE_META_PF_FEAT_SEL,  BTM_BLE_FILT_ADV_PARAM,
+                                 ref_value, NULL, p_cmpl_cback);
+    }
+
+    return st;
+}
+
+/*******************************************************************************
+**
+** Function         BTM_BleEnableDisableFilterFeature
+**
+** Description      This function is called to enable / disable the APCF feature
+**
+** Parameters  enable the generic scan condition.
+**                  enable: enable or disable the filter condition
+**                  p_stat_cback - Status callback pointer
+**                  ref_value   - Ref value
+** Returns          void
+**
+*******************************************************************************/
+tBTM_STATUS BTM_BleEnableDisableFilterFeature(UINT8 enable,
+                                     tBTM_BLE_PF_STATUS_CBACK *p_stat_cback,
+                                     tBTM_BLE_REF_VALUE ref_value)
+{
+    UINT8           param[20], *p;
+    tBTM_STATUS     st = BTM_WRONG_MODE;
+
+    if (BTM_SUCCESS  != btm_ble_obtain_vsc_details())
+       return st;
+
+    p = param;
+    memset(param, 0, 20);
+
+    /* enable the content filter in controller */
+    p = param;
+    UINT8_TO_STREAM(p, BTM_BLE_META_PF_ENABLE);
+    /* enable adv data payload filtering */
+    UINT8_TO_STREAM(p, enable);
+
+    if ((st = BTM_VendorSpecificCommand (HCI_BLE_ADV_FILTER_OCF,
+                              BTM_BLE_PCF_ENABLE_LEN, param,
+                              btm_ble_scan_pf_cmpl_cback)) == BTM_CMD_STARTED)
+    {
+         btm_ble_adv_filt_cb.p_filt_stat_cback = p_stat_cback;
+         btm_ble_advfilt_enq_op_q(enable, BTM_BLE_META_PF_ENABLE, BTM_BLE_FILT_ENABLE_DISABLE,
+                                  ref_value, NULL, NULL);
+    }
+    return st;
+}
+
+/*******************************************************************************
+**
+** Function         BTM_BleCfgFilterCondition
+**
+** Description      This function is called to configure the adv data payload filter
+**                  condition.
+**
+** Parameters       action: to read/write/clear
+**                  cond_type: filter condition type.
+**                  filt_index - Filter index
+**                  p_cond: filter condition parameter
+**                  p_cmpl_cback  - Config callback pointer
+**                  ref_value - Reference value
+**
+** Returns          void
+**
+*******************************************************************************/
+tBTM_STATUS BTM_BleCfgFilterCondition(tBTM_BLE_SCAN_COND_OP action,
+                                      tBTM_BLE_PF_COND_TYPE cond_type,
+                                      tBTM_BLE_PF_FILT_INDEX filt_index,
+                                      tBTM_BLE_PF_COND_PARAM *p_cond,
+                                      tBTM_BLE_PF_CFG_CBACK *p_cmpl_cback,
+                                      tBTM_BLE_REF_VALUE ref_value)
+{
+    tBTM_STATUS     st = BTM_ILLEGAL_VALUE;
+    UINT8 ocf = 0;
+    BTM_TRACE_EVENT (" BTM_BleCfgFilterCondition action:%d, cond_type:%d, index:%d", action,
+                        cond_type, filt_index);
+
+    if (BTM_SUCCESS  != btm_ble_obtain_vsc_details())
+        return st;
+
+    switch (cond_type)
+    {
+        /* write service data filter */
+        case BTM_BLE_PF_SRVC_DATA_PATTERN:
+        /* write manufacturer data filter */
+        case BTM_BLE_PF_MANU_DATA:
+            st = btm_ble_update_pf_manu_data(action, filt_index, p_cond, cond_type, 0, ref_value);
+            break;
+
+        /* write local name filter */
+        case BTM_BLE_PF_LOCAL_NAME:
+            st = btm_ble_update_pf_local_name(action, filt_index, p_cond);
+            break;
+
+        /* filter on advertiser address */
+        case BTM_BLE_PF_ADDR_FILTER:
+            st = btm_ble_update_addr_filter(action, filt_index, p_cond);
+            break;
+
+        /* filter on service/solicitated UUID */
+        case BTM_BLE_PF_SRVC_UUID:
+        case BTM_BLE_PF_SRVC_SOL_UUID:
+            st = btm_ble_update_uuid_filter(action, filt_index, cond_type, p_cond, 0, ref_value);
+            break;
+
+        case BTM_BLE_PF_SRVC_DATA:
+            st = btm_ble_update_srvc_data_change(action, filt_index, p_cond);
+            break;
+
+        case BTM_BLE_PF_TYPE_ALL: /* only used to clear filter */
+            st = btm_ble_clear_scan_pf_filter(action, filt_index, p_cond, p_cmpl_cback,
+                                              0, ref_value);
+            break;
+
+        default:
+            BTM_TRACE_WARNING("condition type [%d] not supported currently.", cond_type);
+            break;
+    }
+
+    if(BTM_CMD_STARTED == st && cond_type != BTM_BLE_PF_TYPE_ALL)
+    {
+       ocf = btm_ble_condtype_to_ocf(cond_type);
+       btm_ble_advfilt_enq_op_q(action, ocf, BTM_BLE_FILT_CFG, ref_value, p_cmpl_cback, NULL);
+    }
+    else
+    if(BTM_CMD_STARTED == st && BTM_BLE_PF_TYPE_ALL == cond_type)
+    {
+       btm_ble_advfilt_enq_op_q(action, BTM_BLE_META_PF_FEAT_SEL, BTM_BLE_FILT_CFG,
+                                ref_value, p_cmpl_cback, NULL);
+    }
+    return st;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_adv_filter_init
+**
+** Description      This function initializes the adv filter control block
+**
+** Parameters
+**
+** Returns          status
+**
+*******************************************************************************/
+void btm_ble_adv_filter_init(void)
+{
+    memset(&btm_ble_adv_filt_cb, 0, sizeof(tBTM_BLE_MULTI_ADV_CB));
+    if (BTM_SUCCESS != btm_ble_obtain_vsc_details())
+       return;
+
+    if (cmn_ble_vsc_cb.max_filter > 0)
+    {
+        btm_ble_adv_filt_cb.p_addr_filter_count =
+            (tBTM_BLE_PF_COUNT*)osi_malloc(sizeof(tBTM_BLE_PF_COUNT) * cmn_ble_vsc_cb.max_filter);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_adv_filter_cleanup
+**
+** Description      This function de-initializes the adv filter control block
+**
+** Parameters
+**
+** Returns          status
+**
+*******************************************************************************/
+void btm_ble_adv_filter_cleanup(void)
+{
+    osi_free_and_reset((void **)&btm_ble_adv_filt_cb.p_addr_filter_count);
+}
+
+#endif
diff --git a/rtkbt/code/bt/stack/btm/btm_ble_batchscan.c b/rtkbt/code/bt/stack/btm/btm_ble_batchscan.c
new file mode 100755
index 0000000..95609de
--- /dev/null
+++ b/rtkbt/code/bt/stack/btm/btm_ble_batchscan.c
@@ -0,0 +1,969 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+#include <string.h>
+#include <stdio.h>
+#include <stddef.h>
+#include "bt_target.h"
+
+#include "btm_ble_api.h"
+#include "bt_types.h"
+#include "bt_utils.h"
+#include "btu.h"
+#include "btm_int.h"
+#include "device/include/controller.h"
+#include "hcimsgs.h"
+
+#if (BLE_INCLUDED == TRUE)
+
+tBTM_BLE_BATCH_SCAN_CB ble_batchscan_cb;
+tBTM_BLE_ADV_TRACK_CB ble_advtrack_cb;
+
+
+/* length of each batch scan command */
+#define BTM_BLE_BATCH_SCAN_STORAGE_CFG_LEN      4
+#define BTM_BLE_BATCH_SCAN_PARAM_CONFIG_LEN    12
+#define BTM_BLE_BATCH_SCAN_ENB_DISB_LEN         2
+#define BTM_BLE_BATCH_SCAN_READ_RESULTS_LEN     2
+
+#define BTM_BLE_BATCH_SCAN_CB_EVT_MASK       0xF0
+#define BTM_BLE_BATCH_SCAN_SUBCODE_MASK      0x0F
+
+/*******************************************************************************
+**  Local functions
+*******************************************************************************/
+void btm_ble_batchscan_vsc_cmpl_cback (tBTM_VSC_CMPL *p_params);
+void btm_ble_batchscan_cleanup(void);
+
+/*******************************************************************************
+**
+** Function         btm_ble_batchscan_filter_track_adv_vse_cback
+**
+** Description      VSE callback for batch scan, filter, and tracking events.
+**
+** Returns          None
+**
+*******************************************************************************/
+void btm_ble_batchscan_filter_track_adv_vse_cback(UINT8 len, UINT8 *p)
+{
+    tBTM_BLE_TRACK_ADV_DATA adv_data;
+
+    UINT8   sub_event = 0;
+    tBTM_BLE_VSC_CB cmn_ble_vsc_cb;
+    STREAM_TO_UINT8(sub_event, p);
+
+    BTM_TRACE_EVENT("btm_ble_batchscan_filter_track_adv_vse_cback called with event:%x", sub_event);
+    if (HCI_VSE_SUBCODE_BLE_THRESHOLD_SUB_EVT == sub_event &&
+        NULL != ble_batchscan_cb.p_thres_cback)
+    {
+        ble_batchscan_cb.p_thres_cback(ble_batchscan_cb.ref_value);
+        return;
+    }
+
+    if (HCI_VSE_SUBCODE_BLE_TRACKING_SUB_EVT == sub_event && NULL != ble_advtrack_cb.p_track_cback)
+    {
+        if (len < 10)
+            return;
+
+        memset(&adv_data, 0 , sizeof(tBTM_BLE_TRACK_ADV_DATA));
+        BTM_BleGetVendorCapabilities(&cmn_ble_vsc_cb);
+        adv_data.client_if = (UINT8)ble_advtrack_cb.ref_value;
+        if (cmn_ble_vsc_cb.version_supported > BTM_VSC_CHIP_CAPABILITY_L_VERSION)
+        {
+            STREAM_TO_UINT8(adv_data.filt_index, p);
+            STREAM_TO_UINT8(adv_data.advertiser_state, p);
+            STREAM_TO_UINT8(adv_data.advertiser_info_present, p);
+            STREAM_TO_BDADDR(adv_data.bd_addr.address, p);
+            STREAM_TO_UINT8(adv_data.addr_type, p);
+
+            /* Extract the adv info details */
+            if (ADV_INFO_PRESENT == adv_data.advertiser_info_present)
+            {
+                STREAM_TO_UINT8(adv_data.tx_power, p);
+                STREAM_TO_UINT8(adv_data.rssi_value, p);
+                STREAM_TO_UINT16(adv_data.time_stamp, p);
+
+                STREAM_TO_UINT8(adv_data.adv_pkt_len, p);
+                if (adv_data.adv_pkt_len > 0)
+                {
+                    adv_data.p_adv_pkt_data = osi_malloc(adv_data.adv_pkt_len);
+                    memcpy(adv_data.p_adv_pkt_data, p, adv_data.adv_pkt_len);
+                }
+
+                STREAM_TO_UINT8(adv_data.scan_rsp_len, p);
+                if (adv_data.scan_rsp_len > 0)
+                {
+                    adv_data.p_scan_rsp_data = osi_malloc(adv_data.scan_rsp_len);
+                    memcpy(adv_data.p_scan_rsp_data, p, adv_data.scan_rsp_len);
+                }
+            }
+        }
+        else
+        {
+            /* Based on L-release version */
+            STREAM_TO_UINT8(adv_data.filt_index, p);
+            STREAM_TO_UINT8(adv_data.addr_type, p);
+            STREAM_TO_BDADDR(adv_data.bd_addr.address, p);
+            STREAM_TO_UINT8(adv_data.advertiser_state, p);
+        }
+
+        BTM_TRACE_EVENT("track_adv_vse_cback called: %d, %d, %d", adv_data.filt_index,
+                         adv_data.addr_type, adv_data.advertiser_state);
+        ble_advtrack_cb.p_track_cback(&adv_data);
+        return;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_batchscan_enq_op_q
+**
+** Description      enqueue a batchscan operation in q to check command complete
+**                  status
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_ble_batchscan_enq_op_q(UINT8 opcode, tBTM_BLE_BATCH_SCAN_STATE cur_state,
+                                          UINT8 cb_evt, tBTM_BLE_REF_VALUE ref_value)
+{
+    ble_batchscan_cb.op_q.sub_code[ble_batchscan_cb.op_q.next_idx] = (opcode |(cb_evt << 4));
+    ble_batchscan_cb.op_q.cur_state[ble_batchscan_cb.op_q.next_idx] = cur_state;
+    ble_batchscan_cb.op_q.ref_value[ble_batchscan_cb.op_q.next_idx] = ref_value;
+    BTM_TRACE_DEBUG("btm_ble_batchscan_enq_op_q: subcode:%d, Cur_state:%d, ref_value:%d",
+        ble_batchscan_cb.op_q.sub_code[ble_batchscan_cb.op_q.next_idx],
+        ble_batchscan_cb.op_q.cur_state[ble_batchscan_cb.op_q.next_idx],
+        ble_batchscan_cb.op_q.ref_value[ble_batchscan_cb.op_q.next_idx]);
+    ble_batchscan_cb.op_q.next_idx = (ble_batchscan_cb.op_q.next_idx + 1)
+                                        % BTM_BLE_BATCH_SCAN_MAX;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_batchscan_enq_rep_q
+**
+** Description      enqueue a batchscan report operation in q to check command complete
+**                  status
+**
+** Returns          void
+**
+*******************************************************************************/
+tBTM_STATUS btm_ble_batchscan_enq_rep_q(UINT8 report_format, tBTM_BLE_REF_VALUE ref_value)
+{
+    int i = 0;
+    for (i = 0; i < BTM_BLE_BATCH_REP_MAIN_Q_SIZE; i++)
+    {
+        if (report_format == ble_batchscan_cb.main_rep_q.rep_mode[i])
+            return BTM_ILLEGAL_VALUE;
+    }
+
+    ble_batchscan_cb.main_rep_q.rep_mode[ble_batchscan_cb.main_rep_q.next_idx] = report_format;
+    ble_batchscan_cb.main_rep_q.ref_value[ble_batchscan_cb.main_rep_q.next_idx] = ref_value;
+    ble_batchscan_cb.main_rep_q.num_records[ble_batchscan_cb.main_rep_q.next_idx] = 0;
+    ble_batchscan_cb.main_rep_q.data_len[ble_batchscan_cb.main_rep_q.next_idx] = 0;
+    ble_batchscan_cb.main_rep_q.p_data[ble_batchscan_cb.main_rep_q.next_idx] = NULL;
+    BTM_TRACE_DEBUG("btm_ble_batchscan_enq_rep_q: index:%d, rep %d, ref %d",
+            ble_batchscan_cb.main_rep_q.next_idx, report_format, ref_value);
+
+    ble_batchscan_cb.main_rep_q.next_idx = (ble_batchscan_cb.main_rep_q.next_idx + 1)
+                                            % BTM_BLE_BATCH_REP_MAIN_Q_SIZE;
+    return BTM_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_batchscan_enq_rep_data
+**
+** Description      setup the data in the main report queue
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_ble_batchscan_enq_rep_data(UINT8 report_format, UINT8 num_records, UINT8 *p_data,
+                                    UINT8 data_len)
+{
+    int index = 0;
+
+    for (index = 0; index < BTM_BLE_BATCH_REP_MAIN_Q_SIZE; index++)
+    {
+        if (report_format == ble_batchscan_cb.main_rep_q.rep_mode[index])
+            break;
+    }
+
+    BTM_TRACE_DEBUG("btm_ble_batchscan_enq_rep_data: index:%d, rep %d, num %d len : %d",
+        index, report_format, num_records, data_len);
+
+    if (index < BTM_BLE_BATCH_REP_MAIN_Q_SIZE && data_len > 0 && num_records > 0)
+    {
+        int len = ble_batchscan_cb.main_rep_q.data_len[index];
+        UINT8 *p_orig_data = ble_batchscan_cb.main_rep_q.p_data[index];
+        UINT8 *p_app_data;
+
+        if (NULL != p_orig_data)
+        {
+            p_app_data = osi_malloc(len + data_len);
+            memcpy(p_app_data, p_orig_data, len);
+            memcpy(p_app_data+len, p_data, data_len);
+            osi_free(p_orig_data);
+            ble_batchscan_cb.main_rep_q.p_data[index] = p_app_data;
+            ble_batchscan_cb.main_rep_q.num_records[index] += num_records;
+            ble_batchscan_cb.main_rep_q.data_len[index] += data_len;
+        }
+        else
+        {
+            p_app_data = osi_malloc(data_len);
+            memcpy(p_app_data, p_data, data_len);
+            ble_batchscan_cb.main_rep_q.p_data[index] = p_app_data;
+            ble_batchscan_cb.main_rep_q.num_records[index] = num_records;
+            ble_batchscan_cb.main_rep_q.data_len[index] = data_len;
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_batchscan_deq_rep_q
+**
+** Description      dequeue a batchscan report  in q when command complete
+**                  is received
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_ble_batchscan_deq_rep_data(UINT8 report_format, tBTM_BLE_REF_VALUE *p_ref_value,
+                                 UINT8 *p_num_records, UINT8 **p_data, UINT16 *p_data_len)
+{
+    int index = 0;
+
+    for (index = 0; index < BTM_BLE_BATCH_REP_MAIN_Q_SIZE; index++)
+    {
+        if (report_format == ble_batchscan_cb.main_rep_q.rep_mode[index])
+            break;
+    }
+
+    if (BTM_BLE_BATCH_REP_MAIN_Q_SIZE == index)
+    {
+        BTM_TRACE_ERROR("btm_ble_batchscan_deq_rep_data: rep_format:%d not found", report_format);
+        return;
+    }
+
+    *p_num_records = ble_batchscan_cb.main_rep_q.num_records[index];
+    *p_ref_value = ble_batchscan_cb.main_rep_q.ref_value[index];
+    *p_data = ble_batchscan_cb.main_rep_q.p_data[index];
+    *p_data_len = ble_batchscan_cb.main_rep_q.data_len[index];
+
+    ble_batchscan_cb.main_rep_q.p_data[index] = NULL;
+    ble_batchscan_cb.main_rep_q.data_len[index] = 0;
+    ble_batchscan_cb.main_rep_q.rep_mode[index] = 0;
+    ble_batchscan_cb.main_rep_q.ref_value[index] = 0;
+    ble_batchscan_cb.main_rep_q.num_records[index] = 0;
+
+    BTM_TRACE_DEBUG("btm_ble_batchscan_deq_rep_data: index:%d, rep %d, num %d, data_len %d",
+        index, report_format, *p_num_records, *p_data_len);
+
+    ble_batchscan_cb.main_rep_q.pending_idx = (ble_batchscan_cb.main_rep_q.pending_idx + 1)
+                                            % BTM_BLE_BATCH_SCAN_MAX;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_batchscan_deq_op_q
+**
+** Description      dequeue a batch scan operation from q when command complete
+**                  is received
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_ble_batchscan_deq_op_q(UINT8 *p_opcode,tBTM_BLE_BATCH_SCAN_STATE *cur_state,
+                                          UINT8 *p_cb_evt, tBTM_BLE_REF_VALUE *p_ref)
+{
+    *p_cb_evt = (ble_batchscan_cb.op_q.sub_code[ble_batchscan_cb.op_q.pending_idx] >> 4);
+    *p_opcode = (ble_batchscan_cb.op_q.sub_code[ble_batchscan_cb.op_q.pending_idx]
+                                            & BTM_BLE_BATCH_SCAN_SUBCODE_MASK);
+    *p_ref = ble_batchscan_cb.op_q.ref_value[ble_batchscan_cb.op_q.pending_idx];
+    *cur_state = (ble_batchscan_cb.op_q.cur_state[ble_batchscan_cb.op_q.pending_idx]);
+    ble_batchscan_cb.op_q.pending_idx = (ble_batchscan_cb.op_q.pending_idx + 1)
+                                            % BTM_BLE_BATCH_SCAN_MAX;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_read_batchscan_reports
+**
+** Description      This function reads the reports from controller
+**
+** Parameters       scan_mode - The mode for which the reports are to be read out from the controller
+**                  ref_value - Reference value
+**
+** Returns          status
+**
+*******************************************************************************/
+tBTM_STATUS btm_ble_read_batchscan_reports(tBTM_BLE_BATCH_SCAN_MODE scan_mode,
+                                          tBTM_BLE_REF_VALUE ref_value)
+{
+    tBTM_STATUS     status = BTM_NO_RESOURCES;
+    UINT8 param[BTM_BLE_BATCH_SCAN_READ_RESULTS_LEN], *pp;
+    pp = param;
+
+    memset(param, 0, BTM_BLE_BATCH_SCAN_READ_RESULTS_LEN);
+
+    UINT8_TO_STREAM (pp, BTM_BLE_BATCH_SCAN_READ_RESULTS);
+    UINT8_TO_STREAM (pp, scan_mode);
+
+    if ((status = BTM_VendorSpecificCommand (HCI_BLE_BATCH_SCAN_OCF,
+            BTM_BLE_BATCH_SCAN_READ_RESULTS_LEN, param, btm_ble_batchscan_vsc_cmpl_cback))
+            != BTM_CMD_STARTED)
+    {
+        BTM_TRACE_ERROR("btm_ble_read_batchscan_reports %d", status);
+        return BTM_ILLEGAL_VALUE;
+    }
+
+    if (BTM_CMD_STARTED == status)
+    {
+        /* The user needs to be provided scan read reports event */
+        btm_ble_batchscan_enq_op_q(BTM_BLE_BATCH_SCAN_READ_RESULTS, ble_batchscan_cb.cur_state,
+                                   BTM_BLE_BATCH_SCAN_READ_REPTS_EVT, ref_value);
+    }
+
+    return status;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_batchscan_vsc_cmpl_cback
+**
+** Description      Batch scan VSC complete callback
+**
+** Parameters       p_params - VSC completed callback parameters
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_ble_batchscan_vsc_cmpl_cback (tBTM_VSC_CMPL *p_params)
+{
+    UINT8  *p = p_params->p_param_buf;
+    UINT16  len = p_params->param_len;
+    tBTM_BLE_REF_VALUE ref_value = 0;
+
+    UINT8  status = 0, subcode = 0, opcode = 0;
+    UINT8 report_format = 0, num_records = 0, cb_evt = 0;
+    UINT16 data_len = 0;
+    tBTM_BLE_BATCH_SCAN_STATE cur_state = 0;
+    tBTM_STATUS btm_status = 0;
+    UINT8 *p_data = NULL;
+
+    if (len < 2)
+    {
+        BTM_TRACE_ERROR("wrong length for btm_ble_batch_scan_vsc_cmpl_cback");
+        btm_ble_batchscan_deq_op_q(&opcode, &cur_state, &cb_evt, &ref_value);
+        return;
+    }
+
+    STREAM_TO_UINT8(status, p);
+    STREAM_TO_UINT8(subcode, p);
+
+    btm_ble_batchscan_deq_op_q(&opcode, &cur_state, &cb_evt, &ref_value);
+
+    BTM_TRACE_DEBUG("btm_ble_batchscan op_code = %02x state = %02x cb_evt = %02x,ref_value=%d",
+        opcode, cur_state, cb_evt, ref_value);
+
+    if (opcode != subcode)
+    {
+        BTM_TRACE_ERROR("Got unexpected VSC cmpl, expected: %d got: %d",subcode,opcode);
+        return;
+    }
+
+    switch (subcode)
+    {
+        case BTM_BLE_BATCH_SCAN_ENB_DISAB_CUST_FEATURE:
+        {
+             if (BTM_SUCCESS == status && BTM_BLE_SCAN_ENABLE_CALLED == cur_state)
+                 ble_batchscan_cb.cur_state = BTM_BLE_SCAN_ENABLED_STATE;
+             else
+             if (BTM_BLE_SCAN_ENABLE_CALLED == cur_state)
+             {
+                 BTM_TRACE_ERROR("SCAN_ENB_DISAB_CUST_FEATURE - Invalid state after enb");
+                 ble_batchscan_cb.cur_state = BTM_BLE_SCAN_INVALID_STATE;
+             }
+
+             BTM_TRACE_DEBUG("BTM_BLE_BATCH_SCAN_ENB_DISAB_CUST_FEAT status = %d, state: %d,evt=%d",
+                                status, ble_batchscan_cb.cur_state, cb_evt);
+
+             if (cb_evt != 0 && NULL != ble_batchscan_cb.p_setup_cback)
+                ble_batchscan_cb.p_setup_cback(cb_evt, ref_value, status);
+             break;
+        }
+
+        case BTM_BLE_BATCH_SCAN_SET_STORAGE_PARAM:
+        {
+            BTM_TRACE_DEBUG("BTM_BLE_BATCH_SCAN_SET_STORAGE_PARAM status = %d, evt=%d",
+                            status, cb_evt);
+            if (cb_evt != 0 && NULL != ble_batchscan_cb.p_setup_cback)
+                ble_batchscan_cb.p_setup_cback(cb_evt, ref_value, status);
+            break;
+        }
+
+        case BTM_BLE_BATCH_SCAN_SET_PARAMS:
+        {
+            BTM_TRACE_DEBUG("BTM_BLE_BATCH_SCAN_SET_PARAMS status = %d,evt=%d", status, cb_evt);
+
+            if (BTM_BLE_SCAN_DISABLE_CALLED == cur_state)
+            {
+                if (BTM_SUCCESS == status)
+                {
+                    ble_batchscan_cb.cur_state = BTM_BLE_SCAN_DISABLED_STATE;
+                }
+                else
+                {
+                    BTM_TRACE_ERROR("BTM_BLE_BATCH_SCAN_SET_PARAMS - Invalid state after disabled");
+                    ble_batchscan_cb.cur_state = BTM_BLE_SCAN_INVALID_STATE;
+                }
+            }
+
+            if (cb_evt != 0 && NULL != ble_batchscan_cb.p_setup_cback)
+               ble_batchscan_cb.p_setup_cback(cb_evt, ref_value, status);
+            break;
+        }
+
+        case BTM_BLE_BATCH_SCAN_READ_RESULTS:
+        {
+            if (cb_evt != 0 && NULL != ble_batchscan_cb.p_scan_rep_cback)
+            {
+                STREAM_TO_UINT8(report_format,p);
+                STREAM_TO_UINT8(num_records, p);
+                p = (uint8_t *)(p_params->p_param_buf + 4);
+                BTM_TRACE_DEBUG("BTM_BLE_BATCH_SCAN_READ_RESULTS status=%d,len=%d,rec=%d",
+                    status, len-4, num_records);
+
+                if (0 == num_records)
+                {
+                    btm_ble_batchscan_deq_rep_data(report_format, &ref_value, &num_records,
+                                                   &p_data, &data_len);
+                    if (NULL != ble_batchscan_cb.p_scan_rep_cback)
+                        ble_batchscan_cb.p_scan_rep_cback(ref_value,report_format, num_records,
+                                                          data_len, p_data, status);
+                }
+                else
+                {
+                    if ((len-4) > 0)
+                    {
+                        btm_ble_batchscan_enq_rep_data(report_format, num_records, p, len-4);
+                        /* More records could be in the buffer and needs to be pulled out */
+                        btm_status = btm_ble_read_batchscan_reports(report_format, ref_value);
+                        if (BTM_CMD_STARTED != btm_status)
+                        {
+                            btm_ble_batchscan_deq_rep_data(report_format, &ref_value, &num_records,
+                                                           &p_data, &data_len);
+                            /* Send whatever is available, in case of a command failure */
+                            if (NULL != ble_batchscan_cb.p_scan_rep_cback && NULL != p_data)
+                                ble_batchscan_cb.p_scan_rep_cback(ref_value,report_format,
+                                                 num_records, data_len, p_data, status);
+                        }
+                    }
+                }
+            }
+            break;
+        }
+
+        default:
+            break;
+    }
+
+    return;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_set_storage_config
+**
+** Description      This function writes the storage configuration in controller
+**
+** Parameters       batch_scan_full_max -Max storage space (in %) allocated to full scanning
+**                  batch_scan_trunc_max -Max storage space (in %) allocated to truncated scanning
+**                  batch_scan_notify_threshold - Setup notification level based on total space
+**
+** Returns          status
+**
+*******************************************************************************/
+tBTM_STATUS btm_ble_set_storage_config(UINT8 batch_scan_full_max, UINT8 batch_scan_trunc_max,
+                                       UINT8 batch_scan_notify_threshold)
+{
+    tBTM_STATUS     status = BTM_NO_RESOURCES;
+    UINT8 param[BTM_BLE_BATCH_SCAN_STORAGE_CFG_LEN], *pp;
+
+    pp = param;
+    memset(param, 0, BTM_BLE_BATCH_SCAN_STORAGE_CFG_LEN);
+
+    UINT8_TO_STREAM (pp, BTM_BLE_BATCH_SCAN_SET_STORAGE_PARAM);
+    UINT8_TO_STREAM (pp, batch_scan_full_max);
+    UINT8_TO_STREAM (pp, batch_scan_trunc_max);
+    UINT8_TO_STREAM (pp, batch_scan_notify_threshold);
+
+    if ((status = BTM_VendorSpecificCommand (HCI_BLE_BATCH_SCAN_OCF,
+                BTM_BLE_BATCH_SCAN_STORAGE_CFG_LEN, param,
+                btm_ble_batchscan_vsc_cmpl_cback))!= BTM_CMD_STARTED)
+    {
+        BTM_TRACE_ERROR("btm_ble_set_storage_config %d", status);
+        return BTM_ILLEGAL_VALUE;
+    }
+
+    return status;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_set_batchscan_param
+**
+** Description      This function writes the batch scan params in controller
+**
+** Parameters       scan_mode -Batch scan mode
+**                  scan_interval - Scan interval
+**                  scan_window  - Scan window
+**                  discard_rule -Discard rules
+**                  addr_type - Address type
+**
+** Returns          status
+**
+*******************************************************************************/
+tBTM_STATUS btm_ble_set_batchscan_param(tBTM_BLE_BATCH_SCAN_MODE scan_mode,
+                     UINT32 scan_interval, UINT32 scan_window, tBLE_ADDR_TYPE addr_type,
+                     tBTM_BLE_DISCARD_RULE discard_rule)
+{
+    tBTM_STATUS     status = BTM_NO_RESOURCES;
+    UINT8 scan_param[BTM_BLE_BATCH_SCAN_PARAM_CONFIG_LEN], *pp_scan;
+
+    pp_scan = scan_param;
+    memset(scan_param, 0, BTM_BLE_BATCH_SCAN_PARAM_CONFIG_LEN);
+
+    // Override param and decide addr_type based on own addr type
+    // TODO: Remove upper layer parameter?
+    addr_type = btm_cb.ble_ctr_cb.addr_mgnt_cb.own_addr_type;
+
+    UINT8_TO_STREAM (pp_scan, BTM_BLE_BATCH_SCAN_SET_PARAMS);
+    UINT8_TO_STREAM (pp_scan, scan_mode);
+    UINT32_TO_STREAM (pp_scan, scan_window);
+    UINT32_TO_STREAM (pp_scan, scan_interval);
+    UINT8_TO_STREAM (pp_scan, addr_type);
+    UINT8_TO_STREAM (pp_scan, discard_rule);
+
+    if ((status = BTM_VendorSpecificCommand (HCI_BLE_BATCH_SCAN_OCF,
+            BTM_BLE_BATCH_SCAN_PARAM_CONFIG_LEN,
+            scan_param, btm_ble_batchscan_vsc_cmpl_cback))!= BTM_CMD_STARTED)
+    {
+        BTM_TRACE_ERROR("btm_ble_set_batchscan_param %d", status);
+        return BTM_ILLEGAL_VALUE;
+    }
+
+    return status;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_enable_disable_batchscan
+**
+** Description      This function enables the customer specific feature in controller
+**
+** Parameters       enable_disable: true - enable, false - disable
+**
+** Returns          status
+**
+*******************************************************************************/
+tBTM_STATUS btm_ble_enable_disable_batchscan(BOOLEAN should_enable)
+{
+    tBTM_STATUS     status = BTM_NO_RESOURCES;
+    UINT8 shld_enable = 0x01;
+    UINT8 enable_param[BTM_BLE_BATCH_SCAN_ENB_DISB_LEN], *pp_enable;
+
+    if (!should_enable)
+        shld_enable = 0x00;
+
+    if (should_enable)
+    {
+        pp_enable = enable_param;
+        memset(enable_param, 0, BTM_BLE_BATCH_SCAN_ENB_DISB_LEN);
+
+        UINT8_TO_STREAM (pp_enable, BTM_BLE_BATCH_SCAN_ENB_DISAB_CUST_FEATURE);
+        UINT8_TO_STREAM (pp_enable, shld_enable);
+
+        if ((status = BTM_VendorSpecificCommand(HCI_BLE_BATCH_SCAN_OCF,
+                 BTM_BLE_BATCH_SCAN_ENB_DISB_LEN, enable_param,
+                 btm_ble_batchscan_vsc_cmpl_cback)) != BTM_CMD_STARTED)
+        {
+            status = BTM_MODE_UNSUPPORTED;
+            BTM_TRACE_ERROR("btm_ble_enable_disable_batchscan %d", status);
+            return BTM_ILLEGAL_VALUE;
+        }
+    }
+    else
+    if ((status = btm_ble_set_batchscan_param(BTM_BLE_BATCH_SCAN_MODE_DISABLE,
+                   ble_batchscan_cb.scan_interval, ble_batchscan_cb.scan_window,
+                   ble_batchscan_cb.addr_type, ble_batchscan_cb.discard_rule)) != BTM_CMD_STARTED)
+    {
+         status = BTM_MODE_UNSUPPORTED;
+         BTM_TRACE_ERROR("btm_ble_enable_disable_batchscan %d", status);
+         return BTM_ILLEGAL_VALUE;
+    }
+
+    if (should_enable)
+        ble_batchscan_cb.cur_state = BTM_BLE_SCAN_ENABLE_CALLED;
+    else
+        ble_batchscan_cb.cur_state = BTM_BLE_SCAN_DISABLE_CALLED;
+    return status;
+}
+
+/*******************************************************************************
+**
+** Function         BTM_BleSetStorageConfig
+**
+** Description      This function is called to write storage config params.
+**
+** Parameters:      batch_scan_full_max - Max storage space (in %) allocated to full style
+**                  batch_scan_trunc_max - Max storage space (in %) allocated to trunc style
+**                  batch_scan_notify_threshold - Setup notification level based on total space
+**                  p_setup_cback - Setup callback pointer
+**                  p_thres_cback - Threshold callback pointer
+**                  p_rep_cback - Reports callback pointer
+**                  ref_value - Reference value
+**
+** Returns          tBTM_STATUS
+**
+*******************************************************************************/
+tBTM_STATUS BTM_BleSetStorageConfig(UINT8 batch_scan_full_max, UINT8 batch_scan_trunc_max,
+                                        UINT8 batch_scan_notify_threshold,
+                                        tBTM_BLE_SCAN_SETUP_CBACK *p_setup_cback,
+                                        tBTM_BLE_SCAN_THRESHOLD_CBACK *p_thres_cback,
+                                        tBTM_BLE_SCAN_REP_CBACK* p_rep_cback,
+                                        tBTM_BLE_REF_VALUE ref_value)
+{
+    tBTM_STATUS     status = BTM_NO_RESOURCES;
+    tBTM_BLE_VSC_CB cmn_ble_vsc_cb;
+
+    BTM_TRACE_EVENT (" BTM_BleSetStorageConfig: %d, %d, %d, %d, %d",
+        ble_batchscan_cb.cur_state, ref_value, batch_scan_full_max, batch_scan_trunc_max,
+        batch_scan_notify_threshold);
+
+    if (!controller_get_interface()->supports_ble())
+        return BTM_ILLEGAL_VALUE;
+
+    BTM_BleGetVendorCapabilities(&cmn_ble_vsc_cb);
+
+    if (0 == cmn_ble_vsc_cb.tot_scan_results_strg)
+    {
+        BTM_TRACE_ERROR("Controller does not support batch scan");
+        return BTM_ERR_PROCESSING;
+    }
+
+    ble_batchscan_cb.p_setup_cback = p_setup_cback;
+    ble_batchscan_cb.p_thres_cback = p_thres_cback;
+    ble_batchscan_cb.p_scan_rep_cback = p_rep_cback;
+    ble_batchscan_cb.ref_value = ref_value;
+
+    if (batch_scan_full_max > BTM_BLE_ADV_SCAN_FULL_MAX ||
+        batch_scan_trunc_max > BTM_BLE_ADV_SCAN_TRUNC_MAX ||
+        batch_scan_notify_threshold > BTM_BLE_ADV_SCAN_THR_MAX)
+    {
+        BTM_TRACE_ERROR("Illegal set storage config params");
+        return BTM_ILLEGAL_VALUE;
+    }
+
+     if (BTM_BLE_SCAN_INVALID_STATE == ble_batchscan_cb.cur_state ||
+         BTM_BLE_SCAN_DISABLED_STATE == ble_batchscan_cb.cur_state ||
+         BTM_BLE_SCAN_DISABLE_CALLED == ble_batchscan_cb.cur_state)
+    {
+        status = btm_ble_enable_disable_batchscan(TRUE);
+        if (BTM_CMD_STARTED != status)
+            return status;
+
+        ble_batchscan_cb.cur_state = BTM_BLE_SCAN_ENABLE_CALLED;
+        btm_ble_batchscan_enq_op_q(BTM_BLE_BATCH_SCAN_ENB_DISAB_CUST_FEATURE,
+                                    BTM_BLE_SCAN_ENABLE_CALLED, 0, ref_value);
+    }
+
+    status = btm_ble_set_storage_config(batch_scan_full_max, batch_scan_trunc_max,
+                                        batch_scan_notify_threshold);
+    if (BTM_CMD_STARTED != status)
+       return status;
+            /* The user needs to be provided scan config storage event */
+     btm_ble_batchscan_enq_op_q(BTM_BLE_BATCH_SCAN_SET_STORAGE_PARAM, ble_batchscan_cb.cur_state,
+                                   BTM_BLE_BATCH_SCAN_CFG_STRG_EVT, ref_value);
+
+    return status;
+}
+
+
+/*******************************************************************************
+**
+** Function         BTM_BleEnableBatchScan
+**
+** Description      This function is called to configure and enable batch scanning
+**
+** Parameters:      scan_mode -Batch scan mode
+**                  scan_interval - Scan interval value
+**                  scan_window - Scan window value
+**                  discard_rule - Data discard rule
+**                  ref_value - Reference value
+**
+** Returns          tBTM_STATUS
+**
+*******************************************************************************/
+tBTM_STATUS BTM_BleEnableBatchScan(tBTM_BLE_BATCH_SCAN_MODE scan_mode,
+            UINT32 scan_interval, UINT32 scan_window, tBLE_ADDR_TYPE addr_type,
+            tBTM_BLE_DISCARD_RULE discard_rule, tBTM_BLE_REF_VALUE ref_value)
+{
+    tBTM_STATUS     status = BTM_NO_RESOURCES;
+    tBTM_BLE_VSC_CB cmn_ble_vsc_cb;
+    BTM_TRACE_EVENT (" BTM_BleEnableBatchScan: %d, %d, %d, %d, %d, %d",
+        scan_mode, scan_interval, scan_window, addr_type, discard_rule, ref_value);
+
+    if (!controller_get_interface()->supports_ble())
+        return BTM_ILLEGAL_VALUE;
+
+    BTM_BleGetVendorCapabilities(&cmn_ble_vsc_cb);
+
+    if (0 == cmn_ble_vsc_cb.tot_scan_results_strg)
+    {
+        BTM_TRACE_ERROR("Controller does not support batch scan");
+        return BTM_ERR_PROCESSING;
+    }
+
+    BTM_TRACE_DEBUG("BTM_BleEnableBatchScan: %d, %x, %x, %d, %d", scan_mode, scan_interval,
+                                        scan_window, discard_rule, ble_batchscan_cb.cur_state);
+
+    /* Only 16 bits will be used for scan interval and scan window as per agreement with Google */
+    /* So the standard LE range would suffice for scan interval and scan window */
+    if ((BTM_BLE_ISVALID_PARAM(scan_interval, BTM_BLE_SCAN_INT_MIN, BTM_BLE_SCAN_INT_MAX) ||
+        BTM_BLE_ISVALID_PARAM(scan_window, BTM_BLE_SCAN_WIN_MIN, BTM_BLE_SCAN_WIN_MAX))
+        && (BTM_BLE_BATCH_SCAN_MODE_PASS == scan_mode || BTM_BLE_BATCH_SCAN_MODE_ACTI == scan_mode
+        || BTM_BLE_BATCH_SCAN_MODE_PASS_ACTI == scan_mode)
+        && (BTM_BLE_DISCARD_OLD_ITEMS == discard_rule ||
+        BTM_BLE_DISCARD_LOWER_RSSI_ITEMS == discard_rule))
+    {
+        if (BTM_BLE_SCAN_INVALID_STATE == ble_batchscan_cb.cur_state ||
+            BTM_BLE_SCAN_DISABLED_STATE == ble_batchscan_cb.cur_state ||
+            BTM_BLE_SCAN_DISABLE_CALLED == ble_batchscan_cb.cur_state)
+        {
+            status = btm_ble_enable_disable_batchscan(TRUE);
+            if (BTM_CMD_STARTED != status)
+               return status;
+            btm_ble_batchscan_enq_op_q(BTM_BLE_BATCH_SCAN_ENB_DISAB_CUST_FEATURE,
+                                       BTM_BLE_SCAN_ENABLE_CALLED, 0, ref_value);
+        }
+
+        ble_batchscan_cb.scan_mode = scan_mode;
+        ble_batchscan_cb.scan_interval = scan_interval;
+        ble_batchscan_cb.scan_window = scan_window;
+        ble_batchscan_cb.addr_type = addr_type;
+        ble_batchscan_cb.discard_rule = discard_rule;
+        /* This command starts batch scanning, if enabled */
+        status = btm_ble_set_batchscan_param(scan_mode, scan_interval, scan_window, addr_type,
+                    discard_rule);
+        if (BTM_CMD_STARTED != status)
+            return status;
+
+        /* The user needs to be provided scan enable event */
+        btm_ble_batchscan_enq_op_q(BTM_BLE_BATCH_SCAN_SET_PARAMS, ble_batchscan_cb.cur_state,
+                                   BTM_BLE_BATCH_SCAN_ENABLE_EVT, ref_value);
+    }
+    else
+    {
+        BTM_TRACE_ERROR("Illegal enable scan params");
+        return BTM_ILLEGAL_VALUE;
+    }
+    return status;
+}
+
+/*******************************************************************************
+**
+** Function         BTM_BleDisableBatchScan
+**
+** Description      This function is called to disable batch scanning
+**
+** Parameters:      ref_value - Reference value
+**
+** Returns          tBTM_STATUS
+**
+*******************************************************************************/
+tBTM_STATUS BTM_BleDisableBatchScan(tBTM_BLE_REF_VALUE ref_value)
+{
+    tBTM_STATUS     status = BTM_NO_RESOURCES;
+    tBTM_BLE_VSC_CB cmn_ble_vsc_cb;
+    BTM_TRACE_EVENT (" BTM_BleDisableBatchScan");
+
+    if (!controller_get_interface()->supports_ble())
+        return BTM_ILLEGAL_VALUE;
+
+    BTM_BleGetVendorCapabilities(&cmn_ble_vsc_cb);
+
+    if (0 == cmn_ble_vsc_cb.tot_scan_results_strg)
+    {
+        BTM_TRACE_ERROR("Controller does not support batch scan");
+        return BTM_ERR_PROCESSING;
+    }
+
+    status = btm_ble_enable_disable_batchscan(FALSE);
+    if (BTM_CMD_STARTED == status)
+    {
+       /* The user needs to be provided scan disable event */
+       btm_ble_batchscan_enq_op_q(BTM_BLE_BATCH_SCAN_SET_PARAMS,
+                                  BTM_BLE_SCAN_DISABLE_CALLED, BTM_BLE_BATCH_SCAN_DISABLE_EVT,
+                                  ref_value);
+    }
+
+    return status;
+}
+
+/*******************************************************************************
+**
+** Function         BTM_BleReadScanReports
+**
+** Description      This function is called to start reading batch scan reports
+**
+** Parameters:      scan_mode - Batch scan mode
+**                  ref_value - Reference value
+**
+** Returns          tBTM_STATUS
+**
+*******************************************************************************/
+tBTM_STATUS BTM_BleReadScanReports(tBTM_BLE_BATCH_SCAN_MODE scan_mode,
+                                             tBTM_BLE_REF_VALUE ref_value)
+{
+    tBTM_STATUS     status = BTM_NO_RESOURCES;
+    tBTM_BLE_VSC_CB cmn_ble_vsc_cb;
+    UINT8 read_scan_mode = 0;
+    UINT8  *p_data = NULL, num_records = 0;
+    UINT16 data_len = 0;
+
+    BTM_TRACE_EVENT (" BTM_BleReadScanReports; %d, %d", scan_mode, ref_value);
+
+    if (!controller_get_interface()->supports_ble())
+        return BTM_ILLEGAL_VALUE;
+
+    BTM_BleGetVendorCapabilities(&cmn_ble_vsc_cb);
+
+    if (0 == cmn_ble_vsc_cb.tot_scan_results_strg)
+    {
+        BTM_TRACE_ERROR("Controller does not support batch scan");
+        return BTM_ERR_PROCESSING;
+    }
+
+    /*  Check if the requested scan mode has already been setup by the user */
+    read_scan_mode = ble_batchscan_cb.scan_mode & BTM_BLE_BATCH_SCAN_MODE_ACTI;
+    if (0 == read_scan_mode)
+        read_scan_mode = ble_batchscan_cb.scan_mode & BTM_BLE_BATCH_SCAN_MODE_PASS;
+
+    /* Check only for modes, as scan reports can be called after disabling batch scan */
+    if (read_scan_mode > 0 && (BTM_BLE_BATCH_SCAN_MODE_PASS == scan_mode ||
+        BTM_BLE_BATCH_SCAN_MODE_ACTI == scan_mode))
+    {
+        status = btm_ble_batchscan_enq_rep_q(scan_mode, ref_value);
+        if (BTM_SUCCESS == status)
+        {
+            status = btm_ble_read_batchscan_reports(scan_mode, ref_value);
+            if (BTM_CMD_STARTED != status)
+            {
+                btm_ble_batchscan_deq_rep_data(scan_mode, &ref_value,
+                                               &num_records, &p_data, &data_len);
+            }
+        }
+    }
+    else
+    {
+        BTM_TRACE_ERROR("Illegal read scan params: %d, %d, %d", read_scan_mode, scan_mode,
+            ble_batchscan_cb.cur_state);
+        return BTM_ILLEGAL_VALUE;
+    }
+    return status;
+}
+
+
+/*******************************************************************************
+**
+** Function         BTM_BleTrackAdvertiser
+**
+** Description      This function is called to setup the callback for tracking advertisers
+**
+** Parameters:      p_track_cback - Tracking callback pointer
+**                  ref_value - Reference value
+**
+** Returns          tBTM_STATUS
+**
+*******************************************************************************/
+tBTM_STATUS BTM_BleTrackAdvertiser(tBTM_BLE_TRACK_ADV_CBACK *p_track_cback,
+                                        tBTM_BLE_REF_VALUE ref_value)
+{
+    tBTM_BLE_VSC_CB cmn_ble_vsc_cb;
+    BTM_TRACE_EVENT (" BTM_BleTrackAdvertiser");
+    if (!controller_get_interface()->supports_ble())
+        return BTM_ILLEGAL_VALUE;
+
+    BTM_BleGetVendorCapabilities(&cmn_ble_vsc_cb);
+
+    if (0 == cmn_ble_vsc_cb.tot_scan_results_strg)
+    {
+        BTM_TRACE_ERROR("Controller does not support scan storage");
+        return BTM_ERR_PROCESSING;
+    }
+
+    ble_advtrack_cb.p_track_cback = p_track_cback;
+    ble_advtrack_cb.ref_value = ref_value;
+    return BTM_CMD_STARTED;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_batchscan_init
+**
+** Description      This function initialize the batch scan control block.
+**
+** Parameters       None
+**
+** Returns          status
+**
+*******************************************************************************/
+void btm_ble_batchscan_init(void)
+{
+    BTM_TRACE_EVENT (" btm_ble_batchscan_init");
+    memset(&ble_batchscan_cb, 0, sizeof(tBTM_BLE_BATCH_SCAN_CB));
+    memset(&ble_advtrack_cb, 0, sizeof(tBTM_BLE_ADV_TRACK_CB));
+    BTM_RegisterForVSEvents(btm_ble_batchscan_filter_track_adv_vse_cback, TRUE);
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_batchscan_cleanup
+**
+** Description      This function cleans the batch scan control block.
+**
+** Parameters       None
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_ble_batchscan_cleanup(void)
+{
+    int index = 0;
+    BTM_TRACE_EVENT (" btm_ble_batchscan_cleanup");
+
+    for (index = 0; index < BTM_BLE_BATCH_REP_MAIN_Q_SIZE; index++)
+        osi_free_and_reset((void **)&ble_batchscan_cb.main_rep_q.p_data[index]);
+
+    memset(&ble_batchscan_cb, 0, sizeof(tBTM_BLE_BATCH_SCAN_CB));
+    memset(&ble_advtrack_cb, 0, sizeof(tBTM_BLE_ADV_TRACK_CB));
+}
+
+#endif
diff --git a/rtkbt/code/bt/stack/btm/btm_ble_bgconn.c b/rtkbt/code/bt/stack/btm/btm_ble_bgconn.c
new file mode 100755
index 0000000..e44045f
--- /dev/null
+++ b/rtkbt/code/bt/stack/btm/btm_ble_bgconn.c
@@ -0,0 +1,735 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains functions for BLE whitelist operation.
+ *
+ ******************************************************************************/
+
+#include <assert.h>
+#include <string.h>
+
+#include "device/include/controller.h"
+#include "osi/include/allocator.h"
+#include "osi/include/hash_map.h"
+#include "bt_types.h"
+#include "btu.h"
+#include "btm_int.h"
+#include "l2c_int.h"
+#include "hcimsgs.h"
+#include "bt_utils.h"
+#ifdef BLUETOOTH_RTK_API
+#include "rtkbt_api.h"
+#endif
+#ifndef BTM_BLE_SCAN_PARAM_TOUT
+#define BTM_BLE_SCAN_PARAM_TOUT      50    /* 50 seconds */
+#endif
+
+#if (BLE_INCLUDED == TRUE)
+
+static void btm_suspend_wl_activity(tBTM_BLE_WL_STATE wl_state);
+static void btm_resume_wl_activity(tBTM_BLE_WL_STATE wl_state);
+
+// Unfortunately (for now?) we have to maintain a copy of the device whitelist
+// on the host to determine if a device is pending to be connected or not. This
+// controls whether the host should keep trying to scan for whitelisted
+// peripherals or not.
+// TODO: Move all of this to controller/le/background_list or similar?
+static const size_t background_connection_buckets = 42;
+static hash_map_t *background_connections = NULL;
+
+typedef struct background_connection_t {
+  bt_bdaddr_t address;
+} background_connection_t;
+
+static bool bdaddr_equality_fn(const void *x, const void *y) {
+  return bdaddr_equals((bt_bdaddr_t *)x, (bt_bdaddr_t *)y);
+}
+
+static void background_connections_lazy_init()
+{
+  if (!background_connections) {
+    background_connections = hash_map_new(background_connection_buckets,
+                                      hash_function_bdaddr, NULL, osi_free, bdaddr_equality_fn);
+    assert(background_connections);
+  }
+}
+
+static void background_connection_add(bt_bdaddr_t *address) {
+  assert(address);
+  background_connections_lazy_init();
+  background_connection_t *connection = hash_map_get(background_connections, address);
+  if (!connection) {
+    connection = osi_calloc(sizeof(background_connection_t));
+    connection->address = *address;
+    hash_map_set(background_connections, &(connection->address), connection);
+  }
+}
+
+static void background_connection_remove(bt_bdaddr_t *address) {
+  if (address && background_connections)
+    hash_map_erase(background_connections, address);
+}
+
+static void background_connections_clear() {
+  if (background_connections)
+    hash_map_clear(background_connections);
+}
+
+static bool background_connections_pending_cb(hash_map_entry_t *hash_entry, void *context) {
+  bool *pending_connections = context;
+  background_connection_t *connection = hash_entry->data;
+  const bool connected = BTM_IsAclConnectionUp(connection->address.address, BT_TRANSPORT_LE);
+  if (!connected) {
+    *pending_connections = true;
+    return false;
+  }
+  return true;
+}
+
+static bool background_connections_pending() {
+  bool pending_connections = false;
+  if (background_connections)
+    hash_map_foreach(background_connections, background_connections_pending_cb, &pending_connections);
+  return pending_connections;
+}
+
+/*******************************************************************************
+**
+** Function         btm_update_scanner_filter_policy
+**
+** Description      This function updates the filter policy of scanner
+*******************************************************************************/
+void btm_update_scanner_filter_policy(tBTM_BLE_SFP scan_policy)
+{
+    tBTM_BLE_INQ_CB *p_inq = &btm_cb.ble_ctr_cb.inq_var;
+
+    UINT32 scan_interval = !p_inq->scan_interval ? BTM_BLE_GAP_DISC_SCAN_INT : p_inq->scan_interval;
+    UINT32 scan_window = !p_inq->scan_window ? BTM_BLE_GAP_DISC_SCAN_WIN : p_inq->scan_window;
+
+    BTM_TRACE_EVENT ("%s", __func__);
+
+    p_inq->sfp = scan_policy;
+    p_inq->scan_type = p_inq->scan_type == BTM_BLE_SCAN_MODE_NONE ? BTM_BLE_SCAN_MODE_ACTI : p_inq->scan_type;
+
+    if (btm_cb.cmn_ble_vsc_cb.extended_scan_support == 0)
+    {
+        btsnd_hcic_ble_set_scan_params(p_inq->scan_type, (UINT16)scan_interval,
+                                       (UINT16)scan_window,
+                                       btm_cb.ble_ctr_cb.addr_mgnt_cb.own_addr_type,
+                                       scan_policy);
+    }
+    else
+    {
+        btm_ble_send_extended_scan_params(p_inq->scan_type, scan_interval, scan_window,
+                                          btm_cb.ble_ctr_cb.addr_mgnt_cb.own_addr_type,
+                                          scan_policy);
+    }
+}
+/*******************************************************************************
+**
+** Function         btm_add_dev_to_controller
+**
+** Description      This function load the device into controller white list
+*******************************************************************************/
+BOOLEAN btm_add_dev_to_controller (BOOLEAN to_add, BD_ADDR bd_addr)
+{
+    tBTM_SEC_DEV_REC    *p_dev_rec = btm_find_dev (bd_addr);
+    BOOLEAN             started = FALSE;
+    BD_ADDR             dummy_bda = {0};
+
+    if (p_dev_rec != NULL && p_dev_rec->device_type & BT_DEVICE_TYPE_BLE) {
+        if (to_add) {
+            if (p_dev_rec->ble.ble_addr_type == BLE_ADDR_PUBLIC || !BTM_BLE_IS_RESOLVE_BDA(bd_addr)) {
+                started = btsnd_hcic_ble_add_white_list(p_dev_rec->ble.ble_addr_type, bd_addr);
+                p_dev_rec->ble.in_controller_list |= BTM_WHITE_LIST_BIT;
+            } else if (memcmp(p_dev_rec->ble.static_addr, bd_addr, BD_ADDR_LEN) != 0 &&
+                memcmp(p_dev_rec->ble.static_addr, dummy_bda, BD_ADDR_LEN) != 0) {
+                started = btsnd_hcic_ble_add_white_list(p_dev_rec->ble.static_addr_type,
+                                                        p_dev_rec->ble.static_addr);
+                p_dev_rec->ble.in_controller_list |= BTM_WHITE_LIST_BIT;
+            }
+        } else {
+            if (p_dev_rec->ble.ble_addr_type == BLE_ADDR_PUBLIC || !BTM_BLE_IS_RESOLVE_BDA(bd_addr))
+                started = btsnd_hcic_ble_remove_from_white_list(p_dev_rec->ble.ble_addr_type, bd_addr);
+
+            if (memcmp(p_dev_rec->ble.static_addr, dummy_bda, BD_ADDR_LEN) != 0 &&
+                memcmp(p_dev_rec->ble.static_addr, bd_addr, BD_ADDR_LEN) != 0)
+                started = btsnd_hcic_ble_remove_from_white_list(p_dev_rec->ble.static_addr_type, p_dev_rec->ble.static_addr);
+
+            p_dev_rec->ble.in_controller_list &= ~BTM_WHITE_LIST_BIT;
+        }
+    } else {
+        /* not a known device, i.e. attempt to connect to device never seen before */
+        UINT8 addr_type = BTM_IS_PUBLIC_BDA(bd_addr) ? BLE_ADDR_PUBLIC : BLE_ADDR_RANDOM;
+        started = btsnd_hcic_ble_remove_from_white_list(addr_type, bd_addr);
+        if (to_add)
+            started = btsnd_hcic_ble_add_white_list(addr_type, bd_addr);
+    }
+#ifdef BLUETOOTH_RTK_API
+        if(started)
+            rtkbt_api_NotifyLeHIDWhitelistStatus(to_add,p_dev_rec);
+#endif
+    return started;
+
+}
+/*******************************************************************************
+**
+** Function         btm_execute_wl_dev_operation
+**
+** Description      execute the pending whitelist device operation(loading or removing)
+*******************************************************************************/
+BOOLEAN btm_execute_wl_dev_operation(void)
+{
+    tBTM_BLE_WL_OP *p_dev_op = btm_cb.ble_ctr_cb.wl_op_q;
+    UINT8   i = 0;
+    BOOLEAN rt = TRUE;
+
+    for (i = 0; i < BTM_BLE_MAX_BG_CONN_DEV_NUM && rt; i ++, p_dev_op ++)
+    {
+        if (p_dev_op->in_use)
+        {
+            rt = btm_add_dev_to_controller(p_dev_op->to_add, p_dev_op->bd_addr);
+            memset(p_dev_op, 0, sizeof(tBTM_BLE_WL_OP));
+        }
+        else
+            break;
+    }
+    return rt;
+}
+/*******************************************************************************
+**
+** Function         btm_enq_wl_dev_operation
+**
+** Description      enqueue the pending whitelist device operation(loading or removing).
+*******************************************************************************/
+void btm_enq_wl_dev_operation(BOOLEAN to_add, BD_ADDR bd_addr)
+{
+    tBTM_BLE_WL_OP *p_dev_op = btm_cb.ble_ctr_cb.wl_op_q;
+    UINT8   i = 0;
+
+    for (i = 0; i < BTM_BLE_MAX_BG_CONN_DEV_NUM; i ++, p_dev_op ++)
+    {
+        if (p_dev_op->in_use && !memcmp(p_dev_op->bd_addr, bd_addr, BD_ADDR_LEN))
+        {
+            p_dev_op->to_add = to_add;
+            return;
+        }
+        else if (!p_dev_op->in_use)
+            break;
+    }
+    if (i != BTM_BLE_MAX_BG_CONN_DEV_NUM)
+    {
+        p_dev_op->in_use = TRUE;
+        p_dev_op->to_add = to_add;
+        memcpy(p_dev_op->bd_addr, bd_addr, BD_ADDR_LEN);
+    }
+    else
+    {
+        BTM_TRACE_ERROR("max pending WL operation reached, discard");
+    }
+    return;
+}
+
+/*******************************************************************************
+**
+** Function         btm_update_dev_to_white_list
+**
+** Description      This function adds or removes a device into/from
+**                  the white list.
+**
+*******************************************************************************/
+BOOLEAN btm_update_dev_to_white_list(BOOLEAN to_add, BD_ADDR bd_addr)
+{
+    tBTM_BLE_CB *p_cb = &btm_cb.ble_ctr_cb;
+
+    if (to_add && p_cb->white_list_avail_size == 0)
+    {
+        BTM_TRACE_ERROR("%s Whitelist full, unable to add device", __func__);
+        return FALSE;
+    }
+
+    if (to_add)
+        background_connection_add((bt_bdaddr_t*)bd_addr);
+    else
+        background_connection_remove((bt_bdaddr_t*)bd_addr);
+
+    btm_suspend_wl_activity(p_cb->wl_state);
+    btm_enq_wl_dev_operation(to_add, bd_addr);
+    btm_resume_wl_activity(p_cb->wl_state);
+    return TRUE;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_clear_white_list
+**
+** Description      This function clears the white list.
+**
+*******************************************************************************/
+void btm_ble_clear_white_list (void)
+{
+    BTM_TRACE_EVENT ("btm_ble_clear_white_list");
+    btsnd_hcic_ble_clear_white_list();
+    background_connections_clear();
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_clear_white_list_complete
+**
+** Description      Indicates white list cleared.
+**
+*******************************************************************************/
+void btm_ble_clear_white_list_complete(UINT8 *p_data, UINT16 evt_len)
+{
+    tBTM_BLE_CB *p_cb = &btm_cb.ble_ctr_cb;
+    UINT8       status;
+    UNUSED(evt_len);
+
+    BTM_TRACE_EVENT ("btm_ble_clear_white_list_complete");
+    STREAM_TO_UINT8  (status, p_data);
+
+    if (status == HCI_SUCCESS)
+        p_cb->white_list_avail_size = controller_get_interface()->get_ble_white_list_size();
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_white_list_init
+**
+** Description      Initialize white list size
+**
+*******************************************************************************/
+void btm_ble_white_list_init(UINT8 white_list_size)
+{
+    BTM_TRACE_DEBUG("%s white_list_size = %d", __func__, white_list_size);
+    btm_cb.ble_ctr_cb.white_list_avail_size = white_list_size;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_add_2_white_list_complete
+**
+** Description      White list element added
+**
+*******************************************************************************/
+void btm_ble_add_2_white_list_complete(UINT8 status)
+{
+    BTM_TRACE_EVENT("%s status=%d", __func__, status);
+    if (status == HCI_SUCCESS)
+        --btm_cb.ble_ctr_cb.white_list_avail_size;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_remove_from_white_list_complete
+**
+** Description      White list element removal complete
+**
+*******************************************************************************/
+void btm_ble_remove_from_white_list_complete(UINT8 *p, UINT16 evt_len)
+{
+    UNUSED(evt_len);
+    BTM_TRACE_EVENT ("%s status=%d", __func__, *p);
+    if (*p == HCI_SUCCESS)
+        ++btm_cb.ble_ctr_cb.white_list_avail_size;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_start_auto_conn
+**
+** Description      This function is to start/stop auto connection procedure.
+**
+** Parameters       start: TRUE to start; FALSE to stop.
+**
+** Returns          void
+**
+*******************************************************************************/
+BOOLEAN btm_ble_start_auto_conn(BOOLEAN start)
+{
+    tBTM_BLE_CB *p_cb = &btm_cb.ble_ctr_cb;
+    BD_ADDR dummy_bda = {0};
+    BOOLEAN exec = TRUE;
+    UINT16 scan_int;
+    UINT16 scan_win;
+    UINT8 own_addr_type = p_cb->addr_mgnt_cb.own_addr_type;
+    UINT8 peer_addr_type = BLE_ADDR_PUBLIC;
+
+    if (start)
+    {
+        if (p_cb->conn_state == BLE_CONN_IDLE && background_connections_pending()
+            && btm_ble_topology_check(BTM_BLE_STATE_INIT))
+        {
+            p_cb->wl_state  |= BTM_BLE_WL_INIT;
+
+            btm_execute_wl_dev_operation();
+
+#if BLE_PRIVACY_SPT == TRUE
+            btm_ble_enable_resolving_list_for_platform(BTM_BLE_RL_INIT);
+#endif
+            scan_int = (p_cb->scan_int == BTM_BLE_SCAN_PARAM_UNDEF) ?
+                                          BTM_BLE_SCAN_SLOW_INT_1 : p_cb->scan_int;
+            scan_win = (p_cb->scan_win == BTM_BLE_SCAN_PARAM_UNDEF) ?
+                                          BTM_BLE_SCAN_SLOW_WIN_1 : p_cb->scan_win;
+
+#if BLE_PRIVACY_SPT == TRUE
+            if (btm_cb.ble_ctr_cb.rl_state != BTM_BLE_RL_IDLE
+                    && controller_get_interface()->supports_ble_privacy())
+            {
+                own_addr_type |= BLE_ADDR_TYPE_ID_BIT;
+                peer_addr_type |= BLE_ADDR_TYPE_ID_BIT;
+            }
+#endif
+
+            if (!btsnd_hcic_ble_create_ll_conn (scan_int,  /* UINT16 scan_int      */
+                                                scan_win,    /* UINT16 scan_win      */
+                                                0x01,                   /* UINT8 white_list     */
+                                                peer_addr_type,        /* UINT8 addr_type_peer */
+                                                dummy_bda,              /* BD_ADDR bda_peer     */
+                                                own_addr_type,          /* UINT8 addr_type_own */
+                                                BTM_BLE_CONN_INT_MIN_DEF,   /* UINT16 conn_int_min  */
+                                                BTM_BLE_CONN_INT_MAX_DEF,   /* UINT16 conn_int_max  */
+                                                BTM_BLE_CONN_SLAVE_LATENCY_DEF,  /* UINT16 conn_latency  */
+                                                BTM_BLE_CONN_TIMEOUT_DEF,        /* UINT16 conn_timeout  */
+                                                0,                       /* UINT16 min_len       */
+                                                0))                      /* UINT16 max_len       */
+            {
+                /* start auto connection failed */
+                exec =  FALSE;
+                p_cb->wl_state &= ~BTM_BLE_WL_INIT;
+            }
+            else
+            {
+                btm_ble_set_conn_st (BLE_BG_CONN);
+            }
+        }
+        else
+        {
+            exec = FALSE;
+        }
+    }
+    else
+    {
+        if (p_cb->conn_state == BLE_BG_CONN)
+        {
+            btsnd_hcic_ble_create_conn_cancel();
+            btm_ble_set_conn_st (BLE_CONN_CANCEL);
+            p_cb->wl_state &= ~BTM_BLE_WL_INIT;
+        }
+        else
+        {
+            BTM_TRACE_DEBUG("conn_st = %d, not in auto conn state, cannot stop", p_cb->conn_state);
+            exec = FALSE;
+        }
+    }
+    return exec;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_start_select_conn
+**
+** Description      This function is to start/stop selective connection procedure.
+**
+** Parameters       start: TRUE to start; FALSE to stop.
+**                  p_select_cback: callback function to return application
+**                                  selection.
+**
+** Returns          BOOLEAN: selective connectino procedure is started.
+**
+*******************************************************************************/
+BOOLEAN btm_ble_start_select_conn(BOOLEAN start, tBTM_BLE_SEL_CBACK *p_select_cback)
+{
+    tBTM_BLE_CB *p_cb = &btm_cb.ble_ctr_cb;
+    UINT32 scan_int = p_cb->scan_int == BTM_BLE_SCAN_PARAM_UNDEF ? BTM_BLE_SCAN_FAST_INT : p_cb->scan_int;
+    UINT32 scan_win = p_cb->scan_win == BTM_BLE_SCAN_PARAM_UNDEF ? BTM_BLE_SCAN_FAST_WIN : p_cb->scan_win;
+
+    BTM_TRACE_EVENT ("%s", __func__);
+
+    if (start)
+    {
+        if (!BTM_BLE_IS_SCAN_ACTIVE(p_cb->scan_activity))
+        {
+            if (p_select_cback != NULL)
+                btm_cb.ble_ctr_cb.p_select_cback = p_select_cback;
+
+            btm_execute_wl_dev_operation();
+
+            btm_update_scanner_filter_policy(SP_ADV_WL);
+            btm_cb.ble_ctr_cb.inq_var.scan_type = BTM_BLE_SCAN_MODE_PASS;
+
+            /* Process advertising packets only from devices in the white list */
+            if (btm_cb.cmn_ble_vsc_cb.extended_scan_support == 0)
+            {
+                /* use passive scan by default */
+                if (!btsnd_hcic_ble_set_scan_params(BTM_BLE_SCAN_MODE_PASS,
+                                                    scan_int,
+                                                    scan_win,
+                                                    p_cb->addr_mgnt_cb.own_addr_type,
+                                                    SP_ADV_WL))
+                {
+                    return FALSE;
+                }
+            }
+            else
+            {
+                if (!btm_ble_send_extended_scan_params(BTM_BLE_SCAN_MODE_PASS,
+                                                       scan_int,
+                                                       scan_win,
+                                                       p_cb->addr_mgnt_cb.own_addr_type,
+                                                       SP_ADV_WL))
+                {
+                    return FALSE;
+                }
+            }
+
+            if (!btm_ble_topology_check(BTM_BLE_STATE_PASSIVE_SCAN))
+            {
+                BTM_TRACE_ERROR("peripheral device cannot initiate passive scan for a selective connection");
+                return FALSE;
+            }
+            else if (background_connections_pending())
+            {
+#if BLE_PRIVACY_SPT == TRUE
+                btm_ble_enable_resolving_list_for_platform(BTM_BLE_RL_SCAN);
+#endif
+                if (!btsnd_hcic_ble_set_scan_enable(TRUE, TRUE)) /* duplicate filtering enabled */
+                     return FALSE;
+
+                 /* mark up inquiry status flag */
+                 p_cb->scan_activity |= BTM_LE_SELECT_CONN_ACTIVE;
+                 p_cb->wl_state |= BTM_BLE_WL_SCAN;
+            }
+        }
+        else
+        {
+            BTM_TRACE_ERROR("scan active, can not start selective connection procedure");
+            return FALSE;
+        }
+    }
+    else /* disable selective connection mode */
+    {
+        p_cb->scan_activity &= ~BTM_LE_SELECT_CONN_ACTIVE;
+        p_cb->p_select_cback = NULL;
+        p_cb->wl_state &= ~BTM_BLE_WL_SCAN;
+
+        /* stop scanning */
+        if (!BTM_BLE_IS_SCAN_ACTIVE(p_cb->scan_activity))
+            btm_ble_stop_scan(); /* duplicate filtering enabled */
+    }
+    return TRUE;
+}
+/*******************************************************************************
+**
+** Function         btm_ble_initiate_select_conn
+**
+** Description      This function is to start/stop selective connection procedure.
+**
+** Parameters       start: TRUE to start; FALSE to stop.
+**                  p_select_cback: callback function to return application
+**                                  selection.
+**
+** Returns          BOOLEAN: selective connectino procedure is started.
+**
+*******************************************************************************/
+void btm_ble_initiate_select_conn(BD_ADDR bda)
+{
+    BTM_TRACE_EVENT ("btm_ble_initiate_select_conn");
+
+    /* use direct connection procedure to initiate connection */
+    if (!L2CA_ConnectFixedChnl(L2CAP_ATT_CID, bda))
+    {
+        BTM_TRACE_ERROR("btm_ble_initiate_select_conn failed");
+    }
+}
+/*******************************************************************************
+**
+** Function         btm_ble_suspend_bg_conn
+**
+** Description      This function is to suspend an active background connection
+**                  procedure.
+**
+** Parameters       none.
+**
+** Returns          none.
+**
+*******************************************************************************/
+BOOLEAN btm_ble_suspend_bg_conn(void)
+{
+    BTM_TRACE_EVENT ("%s", __func__);
+
+    if (btm_cb.ble_ctr_cb.bg_conn_type == BTM_BLE_CONN_AUTO)
+        return btm_ble_start_auto_conn(FALSE);
+    else if (btm_cb.ble_ctr_cb.bg_conn_type == BTM_BLE_CONN_SELECTIVE)
+        return btm_ble_start_select_conn(FALSE, NULL);
+
+    return FALSE;
+}
+/*******************************************************************************
+**
+** Function         btm_suspend_wl_activity
+**
+** Description      This function is to suspend white list related activity
+**
+** Returns          none.
+**
+*******************************************************************************/
+static void btm_suspend_wl_activity(tBTM_BLE_WL_STATE wl_state)
+{
+    if (wl_state & BTM_BLE_WL_INIT)
+    {
+        btm_ble_start_auto_conn(FALSE);
+    }
+    if (wl_state & BTM_BLE_WL_SCAN)
+    {
+        btm_ble_start_select_conn(FALSE, NULL);
+    }
+    if (wl_state & BTM_BLE_WL_ADV)
+    {
+        btm_ble_stop_adv();
+    }
+
+}
+/*******************************************************************************
+**
+** Function         btm_resume_wl_activity
+**
+** Description      This function is to resume white list related activity
+**
+** Returns          none.
+**
+*******************************************************************************/
+static void btm_resume_wl_activity(tBTM_BLE_WL_STATE wl_state)
+{
+    btm_ble_resume_bg_conn();
+
+    if (wl_state & BTM_BLE_WL_ADV)
+    {
+       btm_ble_start_adv();
+    }
+
+}
+/*******************************************************************************
+**
+** Function         btm_ble_resume_bg_conn
+**
+** Description      This function is to resume a background auto connection
+**                  procedure.
+**
+** Parameters       none.
+**
+** Returns          none.
+**
+*******************************************************************************/
+BOOLEAN btm_ble_resume_bg_conn(void)
+{
+    tBTM_BLE_CB *p_cb = &btm_cb.ble_ctr_cb;
+    BOOLEAN ret = FALSE;
+
+    if (p_cb->bg_conn_type != BTM_BLE_CONN_NONE)
+    {
+        if (p_cb->bg_conn_type == BTM_BLE_CONN_AUTO)
+            ret = btm_ble_start_auto_conn(TRUE);
+
+        if (p_cb->bg_conn_type == BTM_BLE_CONN_SELECTIVE)
+            ret = btm_ble_start_select_conn(TRUE, btm_cb.ble_ctr_cb.p_select_cback);
+    }
+
+    return ret;
+}
+/*******************************************************************************
+**
+** Function         btm_ble_get_conn_st
+**
+** Description      This function get BLE connection state
+**
+** Returns          connection state
+**
+*******************************************************************************/
+tBTM_BLE_CONN_ST btm_ble_get_conn_st(void)
+{
+    return btm_cb.ble_ctr_cb.conn_state;
+}
+/*******************************************************************************
+**
+** Function         btm_ble_set_conn_st
+**
+** Description      This function set BLE connection state
+**
+** Returns          None.
+**
+*******************************************************************************/
+void btm_ble_set_conn_st(tBTM_BLE_CONN_ST new_st)
+{
+    btm_cb.ble_ctr_cb.conn_state = new_st;
+
+    if (new_st == BLE_BG_CONN || new_st == BLE_DIR_CONN)
+        btm_ble_set_topology_mask(BTM_BLE_STATE_INIT_BIT);
+    else
+        btm_ble_clear_topology_mask(BTM_BLE_STATE_INIT_BIT);
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_enqueue_direct_conn_req
+**
+** Description      This function enqueue the direct connection request
+**
+** Returns          None.
+**
+*******************************************************************************/
+void btm_ble_enqueue_direct_conn_req(void *p_param)
+{
+    tBTM_BLE_CONN_REQ *p = (tBTM_BLE_CONN_REQ *)osi_malloc(sizeof(tBTM_BLE_CONN_REQ));
+
+    p->p_param = p_param;
+
+    fixed_queue_enqueue(btm_cb.ble_ctr_cb.conn_pending_q, p);
+}
+/*******************************************************************************
+**
+** Function         btm_send_pending_direct_conn
+**
+** Description      This function send the pending direct connection request in queue
+**
+** Returns          TRUE if started, FALSE otherwise
+**
+*******************************************************************************/
+BOOLEAN btm_send_pending_direct_conn(void)
+{
+    tBTM_BLE_CONN_REQ *p_req;
+    BOOLEAN     rt = FALSE;
+
+    p_req = (tBTM_BLE_CONN_REQ*)fixed_queue_try_dequeue(btm_cb.ble_ctr_cb.conn_pending_q);
+    if (p_req != NULL) {
+        tL2C_LCB *p_lcb = (tL2C_LCB *)(p_req->p_param);
+        /* Ignore entries that might have been released while queued. */
+        if (p_lcb->in_use)
+            rt = l2cble_init_direct_conn(p_lcb);
+        osi_free(p_req);
+    }
+
+    return rt;
+}
+
+#endif
+
+
diff --git a/rtkbt/code/bt/stack/btm/btm_ble_cont_energy.c b/rtkbt/code/bt/stack/btm/btm_ble_cont_energy.c
new file mode 100755
index 0000000..0da6cf0
--- /dev/null
+++ b/rtkbt/code/bt/stack/btm/btm_ble_cont_energy.c
@@ -0,0 +1,111 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014  Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#include <string.h>
+#include "bt_target.h"
+
+#if (BLE_INCLUDED == TRUE)
+#include "bt_types.h"
+#include "hcimsgs.h"
+#include "btu.h"
+#include "btm_int.h"
+#include "bt_utils.h"
+#include "hcidefs.h"
+#include "btm_ble_api.h"
+
+tBTM_BLE_ENERGY_INFO_CB ble_energy_info_cb;
+
+/*******************************************************************************
+**
+** Function         btm_ble_cont_energy_cmpl_cback
+**
+** Description      Controller VSC complete callback
+**
+** Parameters
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_ble_cont_energy_cmpl_cback (tBTM_VSC_CMPL *p_params)
+{
+    UINT8  *p = p_params->p_param_buf;
+    UINT16  len = p_params->param_len;
+    UINT8  status = 0;
+    UINT32 total_tx_time = 0, total_rx_time = 0, total_idle_time = 0, total_energy_used = 0;
+
+    if (len < 17)
+    {
+        BTM_TRACE_ERROR("wrong length for btm_ble_cont_energy_cmpl_cback");
+        return;
+    }
+
+    STREAM_TO_UINT8(status, p);
+    STREAM_TO_UINT32(total_tx_time, p);
+    STREAM_TO_UINT32(total_rx_time, p);
+    STREAM_TO_UINT32(total_idle_time, p);
+    STREAM_TO_UINT32(total_energy_used, p);
+
+    BTM_TRACE_DEBUG("energy_info status=%d,tx_t=%ld, rx_t=%ld, ener_used=%ld, idle_t=%ld",
+        status, total_tx_time, total_rx_time, total_energy_used, total_idle_time);
+
+    if (NULL != ble_energy_info_cb.p_ener_cback)
+        ble_energy_info_cb.p_ener_cback(total_tx_time, total_rx_time, total_idle_time,
+                          total_energy_used, status);
+
+    return;
+}
+
+/*******************************************************************************
+**
+** Function         BTM_BleGetEnergyInfo
+**
+** Description      This function obtains the energy info
+**
+** Parameters      p_ener_cback - Callback pointer
+**
+** Returns          status
+**
+*******************************************************************************/
+tBTM_STATUS BTM_BleGetEnergyInfo(tBTM_BLE_ENERGY_INFO_CBACK *p_ener_cback)
+{
+    tBTM_STATUS status = BTM_ILLEGAL_VALUE;
+    tBTM_BLE_VSC_CB cmn_ble_vsc_cb;
+
+    BTM_BleGetVendorCapabilities(&cmn_ble_vsc_cb);
+
+    BTM_TRACE_EVENT("BTM_BleGetEnergyInfo");
+
+    if (0 == cmn_ble_vsc_cb.energy_support)
+    {
+        BTM_TRACE_ERROR("Controller does not support get energy info");
+        return BTM_ERR_PROCESSING;
+    }
+
+    ble_energy_info_cb.p_ener_cback = p_ener_cback;
+    if ((status = BTM_VendorSpecificCommand (HCI_BLE_ENERGY_INFO_OCF, 0, NULL,
+                   btm_ble_cont_energy_cmpl_cback)) != BTM_CMD_STARTED)
+    {
+        BTM_TRACE_ERROR("BTM_BleGetEnergyInfo status: %d", status);
+        return BTM_ILLEGAL_VALUE;
+    }
+
+    return status;
+}
+
+#endif
+
diff --git a/rtkbt/code/bt/stack/btm/btm_ble_gap.c b/rtkbt/code/bt/stack/btm/btm_ble_gap.c
new file mode 100755
index 0000000..7ff566c
--- /dev/null
+++ b/rtkbt/code/bt/stack/btm/btm_ble_gap.c
@@ -0,0 +1,3511 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2008-2014 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains functions for BLE GAP.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_btm_ble"
+
+#include <string.h>
+#include <stdio.h>
+#include <stddef.h>
+
+#include "bt_types.h"
+#include "bt_utils.h"
+#include "btm_ble_api.h"
+#include "btm_int.h"
+#include "btu.h"
+#include "device/include/controller.h"
+#include "gap_api.h"
+#include "hcimsgs.h"
+
+#if BLE_INCLUDED == TRUE
+
+#include "btm_ble_int.h"
+#include "gatt_int.h"
+#include "gattdefs.h"
+#include "l2c_int.h"
+#include "osi/include/log.h"
+
+#define BTM_BLE_NAME_SHORT                  0x01
+#define BTM_BLE_NAME_CMPL                   0x02
+
+#define BTM_BLE_FILTER_TARGET_UNKNOWN       0xff
+#define BTM_BLE_POLICY_UNKNOWN              0xff
+
+#define BTM_EXT_BLE_RMT_NAME_TIMEOUT_MS     (30 * 1000)
+#define MIN_ADV_LENGTH                       2
+#define BTM_VSC_CHIP_CAPABILITY_RSP_LEN_L_RELEASE 9
+
+
+extern fixed_queue_t *btu_general_alarm_queue;
+
+static tBTM_BLE_VSC_CB cmn_ble_vsc_cb;
+
+#if BLE_VND_INCLUDED == TRUE
+static tBTM_BLE_CTRL_FEATURES_CBACK    *p_ctrl_le_feature_rd_cmpl_cback = NULL;
+#endif
+
+/*******************************************************************************
+**  Local functions
+*******************************************************************************/
+static void btm_ble_update_adv_flag(UINT8 flag);
+static void btm_ble_process_adv_pkt_cont(BD_ADDR bda, UINT8 addr_type, UINT8 evt_type, UINT8 *p);
+UINT8 *btm_ble_build_adv_data(tBTM_BLE_AD_MASK *p_data_mask, UINT8 **p_dst,
+                              tBTM_BLE_ADV_DATA *p_data);
+static UINT8 btm_set_conn_mode_adv_init_addr(tBTM_BLE_INQ_CB *p_cb,
+                                     BD_ADDR_PTR p_peer_addr_ptr,
+                                     tBLE_ADDR_TYPE *p_peer_addr_type,
+                                     tBLE_ADDR_TYPE *p_own_addr_type);
+static void btm_ble_stop_observe(void);
+static void btm_ble_fast_adv_timer_timeout(void *data);
+static void btm_ble_start_slow_adv(void);
+static void btm_ble_inquiry_timer_gap_limited_discovery_timeout(void *data);
+static void btm_ble_inquiry_timer_timeout(void *data);
+static void btm_ble_observer_timer_timeout(void *data);
+
+
+#define BTM_BLE_INQ_RESULT          0x01
+#define BTM_BLE_OBS_RESULT          0x02
+#define BTM_BLE_SEL_CONN_RESULT     0x04
+
+/* LE states combo bit to check */
+const UINT8 btm_le_state_combo_tbl[BTM_BLE_STATE_MAX][BTM_BLE_STATE_MAX][2] =
+{
+    {/* single state support */
+        {HCI_SUPP_LE_STATES_CONN_ADV_MASK, HCI_SUPP_LE_STATES_CONN_ADV_OFF},  /* conn_adv */
+        {HCI_SUPP_LE_STATES_INIT_MASK, HCI_SUPP_LE_STATES_INIT_OFF}, /* init */
+        {HCI_SUPP_LE_STATES_INIT_MASK, HCI_SUPP_LE_STATES_INIT_OFF}, /* master */
+        {HCI_SUPP_LE_STATES_SLAVE_MASK, HCI_SUPP_LE_STATES_SLAVE_OFF}, /* slave */
+        {0, 0},                   /* todo: lo du dir adv, not covered ? */
+        {HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_MASK, HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_OFF}, /* hi duty dir adv */
+        {HCI_SUPP_LE_STATES_NON_CONN_ADV_MASK, HCI_SUPP_LE_STATES_NON_CONN_ADV_OFF},  /* non connectable adv */
+        {HCI_SUPP_LE_STATES_PASS_SCAN_MASK, HCI_SUPP_LE_STATES_PASS_SCAN_OFF},   /*  passive scan */
+        {HCI_SUPP_LE_STATES_ACTIVE_SCAN_MASK, HCI_SUPP_LE_STATES_ACTIVE_SCAN_OFF},  /*   active scan */
+        {HCI_SUPP_LE_STATES_SCAN_ADV_MASK, HCI_SUPP_LE_STATESSCAN_ADV_OFF}   /* scanable adv */
+    },
+    {    /* conn_adv =0 */
+        {0, 0},                                                                           /* conn_adv */
+        {HCI_SUPP_LE_STATES_CONN_ADV_INIT_MASK, HCI_SUPP_LE_STATES_CONN_ADV_INIT_OFF},      /* init: 32 */
+        {HCI_SUPP_LE_STATES_CONN_ADV_MASTER_MASK, HCI_SUPP_LE_STATES_CONN_ADV_MASTER_OFF},  /* master: 35 */
+        {HCI_SUPP_LE_STATES_CONN_ADV_SLAVE_MASK, HCI_SUPP_LE_STATES_CONN_ADV_SLAVE_OFF}, /* slave: 38,*/
+        {0, 0},                                                                           /* lo du dir adv */
+        {0, 0},                                                                            /* hi duty dir adv */
+        {0, 0},  /* non connectable adv */
+        {HCI_SUPP_LE_STATES_CONN_ADV_PASS_SCAN_MASK, HCI_SUPP_LE_STATES_CONN_ADV_PASS_SCAN_OFF},   /*  passive scan */
+        {HCI_SUPP_LE_STATES_CONN_ADV_ACTIVE_SCAN_MASK, HCI_SUPP_LE_STATES_CONN_ADV_ACTIVE_SCAN_OFF},  /*   active scan */
+        {0, 0}   /* scanable adv */
+    },
+    {   /* init */
+        {HCI_SUPP_LE_STATES_CONN_ADV_INIT_MASK, HCI_SUPP_LE_STATES_CONN_ADV_INIT_OFF},      /* conn_adv: 32 */
+        {0, 0},                                                                             /* init */
+        {HCI_SUPP_LE_STATES_INIT_MASTER_MASK, HCI_SUPP_LE_STATES_INIT_MASTER_OFF},          /* master 28 */
+        {HCI_SUPP_LE_STATES_INIT_MASTER_SLAVE_MASK, HCI_SUPP_LE_STATES_INIT_MASTER_SLAVE_OFF}, /* slave 41 */
+        {HCI_SUPP_LE_STATES_LO_DUTY_DIR_ADV_INIT_MASK, HCI_SUPP_LE_STATES_LO_DUTY_DIR_ADV_INIT_OFF} ,/* lo du dir adv 34 */
+        {HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_INIT_MASK, HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_INIT_OFF},     /* hi duty dir adv 33 */
+        {HCI_SUPP_LE_STATES_NON_CONN_INIT_MASK, HCI_SUPP_LE_STATES_NON_CONN_INIT_OFF},  /*  non connectable adv */
+        {HCI_SUPP_LE_STATES_PASS_SCAN_INIT_MASK, HCI_SUPP_LE_STATES_PASS_SCAN_INIT_OFF},   /* passive scan */
+        {HCI_SUPP_LE_STATES_ACTIVE_SCAN_INIT_MASK, HCI_SUPP_LE_STATES_ACTIVE_SCAN_INIT_OFF},  /*  active scan */
+        {HCI_SUPP_LE_STATES_SCAN_ADV_INIT_MASK, HCI_SUPP_LE_STATES_SCAN_ADV_INIT_OFF}   /* scanable adv */
+
+    },
+    {   /* master */
+        {HCI_SUPP_LE_STATES_CONN_ADV_MASTER_MASK, HCI_SUPP_LE_STATES_CONN_ADV_MASTER_OFF},  /* conn_adv: 35 */
+        {HCI_SUPP_LE_STATES_INIT_MASTER_MASK, HCI_SUPP_LE_STATES_INIT_MASTER_OFF},          /* init 28 */
+        {HCI_SUPP_LE_STATES_INIT_MASTER_MASK, HCI_SUPP_LE_STATES_INIT_MASTER_OFF},          /* master 28 */
+        {HCI_SUPP_LE_STATES_CONN_ADV_INIT_MASK, HCI_SUPP_LE_STATES_CONN_ADV_INIT_OFF},      /* slave: 32 */
+        {HCI_SUPP_LE_STATES_LO_DUTY_DIR_ADV_MASTER_MASK, HCI_SUPP_LE_STATES_LO_DUTY_DIR_ADV_MASTER_OFF},  /* lo duty cycle adv 37 */
+        {HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_MASTER_MASK, HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_MASTER_OFF},   /* hi duty cycle adv 36 */
+        {HCI_SUPP_LE_STATES_NON_CONN_ADV_MASTER_MASK, HCI_SUPP_LE_STATES_NON_CONN_ADV_MASTER_OFF},  /*  non connectable adv */
+        {HCI_SUPP_LE_STATES_PASS_SCAN_MASTER_MASK, HCI_SUPP_LE_STATES_PASS_SCAN_MASTER_OFF},   /*  passive scan */
+        {HCI_SUPP_LE_STATES_ACTIVE_SCAN_MASTER_MASK, HCI_SUPP_LE_STATES_ACTIVE_SCAN_MASTER_OFF},  /*   active scan */
+        {HCI_SUPP_LE_STATES_SCAN_ADV_MASTER_MASK, HCI_SUPP_LE_STATES_SCAN_ADV_MASTER_OFF}   /*  scanable adv */
+
+    },
+    { /* slave */
+        {HCI_SUPP_LE_STATES_CONN_ADV_SLAVE_MASK, HCI_SUPP_LE_STATES_CONN_ADV_SLAVE_OFF}, /* conn_adv: 38,*/
+        {HCI_SUPP_LE_STATES_INIT_MASTER_SLAVE_MASK, HCI_SUPP_LE_STATES_INIT_MASTER_SLAVE_OFF}, /* init 41 */
+        {HCI_SUPP_LE_STATES_INIT_MASTER_SLAVE_MASK, HCI_SUPP_LE_STATES_INIT_MASTER_SLAVE_OFF}, /* master 41 */
+        {HCI_SUPP_LE_STATES_CONN_ADV_SLAVE_MASK, HCI_SUPP_LE_STATES_CONN_ADV_SLAVE_OFF},        /* slave: 38,*/
+        {HCI_SUPP_LE_STATES_LO_DUTY_DIR_ADV_SLAVE_MASK, HCI_SUPP_LE_STATES_LO_DUTY_DIR_ADV_SLAVE_OFF},  /* lo duty cycle adv 40 */
+        {HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_SLAVE_MASK, HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_SLAVE_OFF},   /* hi duty cycle adv 39 */
+        {HCI_SUPP_LE_STATES_NON_CONN_ADV_SLAVE_MASK, HCI_SUPP_LE_STATES_NON_CONN_ADV_SLAVE_OFF},  /* non connectable adv */
+        {HCI_SUPP_LE_STATES_PASS_SCAN_SLAVE_MASK, HCI_SUPP_LE_STATES_PASS_SCAN_SLAVE_OFF},   /* passive scan */
+        {HCI_SUPP_LE_STATES_ACTIVE_SCAN_SLAVE_MASK, HCI_SUPP_LE_STATES_ACTIVE_SCAN_SLAVE_OFF},  /*  active scan */
+        {HCI_SUPP_LE_STATES_SCAN_ADV_SLAVE_MASK, HCI_SUPP_LE_STATES_SCAN_ADV_SLAVE_OFF}   /* scanable adv */
+
+    },
+    { /* lo duty cycle adv */
+        {0, 0}, /* conn_adv: 38,*/
+        {HCI_SUPP_LE_STATES_LO_DUTY_DIR_ADV_INIT_MASK, HCI_SUPP_LE_STATES_LO_DUTY_DIR_ADV_INIT_OFF} ,/* init 34 */
+        {HCI_SUPP_LE_STATES_LO_DUTY_DIR_ADV_MASTER_MASK, HCI_SUPP_LE_STATES_LO_DUTY_DIR_ADV_MASTER_OFF}, /* master 37 */
+        {HCI_SUPP_LE_STATES_LO_DUTY_DIR_ADV_SLAVE_MASK, HCI_SUPP_LE_STATES_LO_DUTY_DIR_ADV_SLAVE_OFF}, /* slave: 40 */
+        {0, 0},  /* lo duty cycle adv 40 */
+        {0, 0},   /* hi duty cycle adv 39 */
+        {0, 0},  /*  non connectable adv */
+        {0, 0},   /* TODO: passive scan, not covered? */
+        {0, 0},  /* TODO:  active scan, not covered? */
+        {0, 0}   /*  scanable adv */
+    },
+    { /* hi duty cycle adv */
+        {0, 0}, /* conn_adv: 38,*/
+        {HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_INIT_MASK, HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_INIT_OFF}, /* init 33 */
+        {HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_MASTER_MASK, HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_MASTER_OFF}, /* master 36 */
+        {HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_SLAVE_MASK, HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_SLAVE_OFF},   /* slave: 39*/
+        {0, 0},  /* lo duty cycle adv 40 */
+        {0, 0},   /* hi duty cycle adv 39 */
+        {0, 0},  /* non connectable adv */
+        {HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_PASS_SCAN_MASK, HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_PASS_SCAN_OFF},   /* passive scan */
+        {HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_ACTIVE_SCAN_MASK, HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_ACTIVE_SCAN_OFF},  /* active scan */
+        {0, 0}   /* scanable adv */
+    },
+    { /* non connectable adv */
+        {0, 0}, /* conn_adv: */
+        {HCI_SUPP_LE_STATES_NON_CONN_INIT_MASK, HCI_SUPP_LE_STATES_NON_CONN_INIT_OFF}, /* init  */
+        {HCI_SUPP_LE_STATES_NON_CONN_ADV_MASTER_MASK, HCI_SUPP_LE_STATES_NON_CONN_ADV_MASTER_OFF}, /* master  */
+        {HCI_SUPP_LE_STATES_NON_CONN_ADV_SLAVE_MASK, HCI_SUPP_LE_STATES_NON_CONN_ADV_SLAVE_OFF},   /* slave: */
+        {0, 0},  /* lo duty cycle adv */
+        {0, 0},   /* hi duty cycle adv */
+        {0, 0},  /* non connectable adv */
+        {HCI_SUPP_LE_STATES_NON_CONN_ADV_PASS_SCAN_MASK, HCI_SUPP_LE_STATES_NON_CONN_ADV_PASS_SCAN_OFF},   /* passive scan */
+        {HCI_SUPP_LE_STATES_NON_CONN_ADV_ACTIVE_SCAN_MASK, HCI_SUPP_LE_STATES_NON_CONN_ADV_ACTIVE_SCAN_OFF},  /*  active scan */
+        {0, 0}   /* scanable adv */
+    },
+    { /* passive scan */
+        {HCI_SUPP_LE_STATES_CONN_ADV_PASS_SCAN_MASK, HCI_SUPP_LE_STATES_CONN_ADV_PASS_SCAN_OFF}, /* conn_adv: */
+        {HCI_SUPP_LE_STATES_PASS_SCAN_INIT_MASK, HCI_SUPP_LE_STATES_PASS_SCAN_INIT_OFF}, /* init  */
+        {HCI_SUPP_LE_STATES_PASS_SCAN_MASTER_MASK, HCI_SUPP_LE_STATES_PASS_SCAN_MASTER_OFF}, /* master  */
+        {HCI_SUPP_LE_STATES_PASS_SCAN_SLAVE_MASK, HCI_SUPP_LE_STATES_PASS_SCAN_SLAVE_OFF},   /* slave: */
+        {0, 0},  /* lo duty cycle adv */
+        {HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_PASS_SCAN_MASK, HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_PASS_SCAN_OFF},   /* hi duty cycle adv */
+        {HCI_SUPP_LE_STATES_NON_CONN_ADV_PASS_SCAN_MASK, HCI_SUPP_LE_STATES_NON_CONN_ADV_PASS_SCAN_OFF},  /*  non connectable adv */
+        {0, 0},   /* passive scan */
+        {0, 0},  /* active scan */
+         {HCI_SUPP_LE_STATES_SCAN_ADV_PASS_SCAN_MASK, HCI_SUPP_LE_STATES_SCAN_ADV_PASS_SCAN_OFF}   /* scanable adv */
+    },
+    { /* active scan */
+        {HCI_SUPP_LE_STATES_CONN_ADV_ACTIVE_SCAN_MASK, HCI_SUPP_LE_STATES_CONN_ADV_ACTIVE_SCAN_OFF}, /* conn_adv: */
+        {HCI_SUPP_LE_STATES_ACTIVE_SCAN_INIT_MASK, HCI_SUPP_LE_STATES_ACTIVE_SCAN_INIT_OFF}, /* init  */
+        {HCI_SUPP_LE_STATES_ACTIVE_SCAN_MASTER_MASK, HCI_SUPP_LE_STATES_ACTIVE_SCAN_MASTER_OFF}, /* master  */
+        {HCI_SUPP_LE_STATES_ACTIVE_SCAN_SLAVE_MASK, HCI_SUPP_LE_STATES_ACTIVE_SCAN_SLAVE_OFF},   /* slave: */
+        {0, 0},  /* lo duty cycle adv */
+        {HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_ACTIVE_SCAN_MASK, HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_ACTIVE_SCAN_OFF},   /* hi duty cycle adv */
+        {HCI_SUPP_LE_STATES_NON_CONN_ADV_ACTIVE_SCAN_MASK, HCI_SUPP_LE_STATES_NON_CONN_ADV_ACTIVE_SCAN_OFF},  /*  non connectable adv */
+        {0, 0},   /* TODO: passive scan */
+        {0, 0},  /* TODO:  active scan */
+        {HCI_SUPP_LE_STATES_SCAN_ADV_ACTIVE_SCAN_MASK, HCI_SUPP_LE_STATES_SCAN_ADV_ACTIVE_SCAN_OFF}   /*  scanable adv */
+    },
+    { /* scanable adv */
+        {0, 0}, /* conn_adv: */
+        {HCI_SUPP_LE_STATES_SCAN_ADV_INIT_MASK, HCI_SUPP_LE_STATES_SCAN_ADV_INIT_OFF}, /* init  */
+        {HCI_SUPP_LE_STATES_SCAN_ADV_MASTER_MASK, HCI_SUPP_LE_STATES_SCAN_ADV_MASTER_OFF}, /* master  */
+        {HCI_SUPP_LE_STATES_SCAN_ADV_SLAVE_MASK, HCI_SUPP_LE_STATES_SCAN_ADV_SLAVE_OFF},   /* slave: */
+        {0, 0},  /* lo duty cycle adv */
+        {0, 0},   /* hi duty cycle adv */
+        {0, 0},  /* non connectable adv */
+        {HCI_SUPP_LE_STATES_SCAN_ADV_PASS_SCAN_MASK, HCI_SUPP_LE_STATES_SCAN_ADV_PASS_SCAN_OFF},   /*  passive scan */
+        {HCI_SUPP_LE_STATES_SCAN_ADV_ACTIVE_SCAN_MASK, HCI_SUPP_LE_STATES_SCAN_ADV_ACTIVE_SCAN_OFF},  /*  active scan */
+        {0, 0}   /* scanable adv */
+    }
+
+};
+/* check LE combo state supported */
+#define BTM_LE_STATES_SUPPORTED(x, y, z)      ((x)[(z)] & (y))
+
+/*******************************************************************************
+**
+** Function         BTM_BleUpdateAdvWhitelist
+**
+** Description      Add or remove device from advertising white list
+**
+** Returns          void
+**
+*******************************************************************************/
+BOOLEAN BTM_BleUpdateAdvWhitelist(BOOLEAN add_remove, BD_ADDR remote_bda)
+{
+    UNUSED(add_remove);
+    UNUSED(remote_bda);
+
+    return FALSE;
+}
+
+/*******************************************************************************
+**
+** Function         BTM_BleUpdateAdvFilterPolicy
+**
+** Description      This function update the filter policy of advertiser.
+**
+** Parameter        adv_policy: advertising filter policy
+**
+** Return           void
+*******************************************************************************/
+void BTM_BleUpdateAdvFilterPolicy(tBTM_BLE_AFP adv_policy)
+{
+    tBTM_BLE_INQ_CB *p_cb = &btm_cb.ble_ctr_cb.inq_var;
+    tBLE_ADDR_TYPE   init_addr_type = BLE_ADDR_PUBLIC;
+    BD_ADDR          p_addr_ptr= {0};
+    UINT8            adv_mode = p_cb->adv_mode;
+
+    BTM_TRACE_EVENT ("BTM_BleUpdateAdvFilterPolicy");
+
+    if (!controller_get_interface()->supports_ble())
+        return;
+
+    if (p_cb->afp != adv_policy)
+    {
+        p_cb->afp = adv_policy;
+
+        /* if adv active, stop and restart */
+        btm_ble_stop_adv ();
+
+        if (p_cb->connectable_mode & BTM_BLE_CONNECTABLE)
+            p_cb->evt_type = btm_set_conn_mode_adv_init_addr(p_cb, p_addr_ptr, &init_addr_type,
+                                                              &p_cb->adv_addr_type);
+
+        btsnd_hcic_ble_write_adv_params ((UINT16)(p_cb->adv_interval_min ? p_cb->adv_interval_min :
+                                         BTM_BLE_GAP_ADV_SLOW_INT),
+                                         (UINT16)(p_cb->adv_interval_max ? p_cb->adv_interval_max :
+                                         BTM_BLE_GAP_ADV_SLOW_INT),
+                                         p_cb->evt_type,
+                                         p_cb->adv_addr_type,
+                                         init_addr_type,
+                                         p_addr_ptr,
+                                         p_cb->adv_chnl_map,
+                                         p_cb->afp);
+
+        if (adv_mode == BTM_BLE_ADV_ENABLE)
+            btm_ble_start_adv ();
+
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_send_extended_scan_params
+**
+** Description      This function sends out the extended scan parameters command to the controller
+**
+** Parameters       scan_type - Scan type
+**                  scan_int - Scan interval
+**                  scan_win - Scan window
+**                  addr_type_own - Own address type
+**                  scan_filter_policy - Scan filter policy
+**
+** Returns          TRUE or FALSE
+**
+*******************************************************************************/
+BOOLEAN btm_ble_send_extended_scan_params(UINT8 scan_type, UINT32 scan_int,
+                                          UINT32 scan_win, UINT8 addr_type_own,
+                                          UINT8 scan_filter_policy)
+{
+    UINT8 scan_param[HCIC_PARAM_SIZE_BLE_WRITE_EXTENDED_SCAN_PARAM];
+    UINT8 *pp_scan = scan_param;
+
+    memset(scan_param, 0, HCIC_PARAM_SIZE_BLE_WRITE_EXTENDED_SCAN_PARAM);
+
+    UINT8_TO_STREAM(pp_scan, scan_type);
+    UINT32_TO_STREAM(pp_scan, scan_int);
+    UINT32_TO_STREAM(pp_scan, scan_win);
+    UINT8_TO_STREAM(pp_scan, addr_type_own);
+    UINT8_TO_STREAM(pp_scan, scan_filter_policy);
+
+    BTM_TRACE_DEBUG("%s, %d, %d", __func__, scan_int, scan_win);
+    if ((BTM_VendorSpecificCommand(HCI_BLE_EXTENDED_SCAN_PARAMS_OCF,
+         HCIC_PARAM_SIZE_BLE_WRITE_EXTENDED_SCAN_PARAM, scan_param, NULL)) != BTM_SUCCESS)
+    {
+        BTM_TRACE_ERROR("%s error sending extended scan parameters", __func__);
+        return FALSE;
+    }
+    return TRUE;
+}
+
+/*******************************************************************************
+**
+** Function         BTM_BleObserve
+**
+** Description      This procedure keep the device listening for advertising
+**                  events from a broadcast device.
+**
+** Parameters       start: start or stop observe.
+**                  white_list: use white list in observer mode or not.
+**
+** Returns          void
+**
+*******************************************************************************/
+tBTM_STATUS BTM_BleObserve(BOOLEAN start, UINT8 duration,
+                           tBTM_INQ_RESULTS_CB *p_results_cb, tBTM_CMPL_CB *p_cmpl_cb)
+{
+    tBTM_BLE_INQ_CB *p_inq = &btm_cb.ble_ctr_cb.inq_var;
+    tBTM_STATUS status = BTM_WRONG_MODE;
+
+    UINT32 scan_interval = !p_inq->scan_interval ? BTM_BLE_GAP_DISC_SCAN_INT : p_inq->scan_interval;
+    UINT32 scan_window = !p_inq->scan_window ? BTM_BLE_GAP_DISC_SCAN_WIN : p_inq->scan_window;
+
+    BTM_TRACE_EVENT ("%s : scan_type:%d, %d, %d", __func__, btm_cb.btm_inq_vars.scan_type,
+                      p_inq->scan_interval, p_inq->scan_window);
+
+    if (!controller_get_interface()->supports_ble())
+        return BTM_ILLEGAL_VALUE;
+
+    if (start)
+    {
+        /* shared inquiry database, do not allow observe if any inquiry is active */
+        if (BTM_BLE_IS_OBS_ACTIVE(btm_cb.ble_ctr_cb.scan_activity))
+        {
+            BTM_TRACE_ERROR("%s Observe Already Active", __func__);
+            return status;
+        }
+
+        btm_cb.ble_ctr_cb.p_obs_results_cb = p_results_cb;
+        btm_cb.ble_ctr_cb.p_obs_cmpl_cb = p_cmpl_cb;
+        status = BTM_CMD_STARTED;
+
+        /* scan is not started */
+        if (!BTM_BLE_IS_SCAN_ACTIVE(btm_cb.ble_ctr_cb.scan_activity))
+        {
+            /* allow config of scan type */
+            p_inq->scan_type = (p_inq->scan_type == BTM_BLE_SCAN_MODE_NONE) ?
+                                                    BTM_BLE_SCAN_MODE_ACTI: p_inq->scan_type;
+            /* assume observe always not using white list */
+            #if (defined BLE_PRIVACY_SPT && BLE_PRIVACY_SPT == TRUE)
+                /* enable resolving list */
+                btm_ble_enable_resolving_list_for_platform(BTM_BLE_RL_SCAN);
+            #endif
+
+            if (cmn_ble_vsc_cb.extended_scan_support == 0)
+            {
+                btsnd_hcic_ble_set_scan_params(p_inq->scan_type, (UINT16)scan_interval,
+                                               (UINT16)scan_window,
+                                               btm_cb.ble_ctr_cb.addr_mgnt_cb.own_addr_type,
+                                               BTM_BLE_DEFAULT_SFP);
+            }
+            else
+            {
+                btm_ble_send_extended_scan_params(p_inq->scan_type, scan_interval, scan_window,
+                                                  btm_cb.ble_ctr_cb.addr_mgnt_cb.own_addr_type,
+                                                  BTM_BLE_DEFAULT_SFP);
+            }
+
+            p_inq->scan_duplicate_filter = BTM_BLE_DUPLICATE_DISABLE;
+            status = btm_ble_start_scan();
+        }
+
+        if (status == BTM_CMD_STARTED)
+        {
+            btm_cb.ble_ctr_cb.scan_activity |= BTM_LE_OBSERVE_ACTIVE;
+            if (duration != 0) {
+                /* start observer timer */
+                period_ms_t duration_ms = duration * 1000;
+                alarm_set_on_queue(btm_cb.ble_ctr_cb.observer_timer,
+                                   duration_ms, btm_ble_observer_timer_timeout,
+                                   NULL, btu_general_alarm_queue);
+            }
+        }
+    }
+    else if (BTM_BLE_IS_OBS_ACTIVE(btm_cb.ble_ctr_cb.scan_activity))
+    {
+        status = BTM_CMD_STARTED;
+        btm_ble_stop_observe();
+    }
+    else
+    {
+        BTM_TRACE_ERROR("%s Observe not active", __func__);
+    }
+
+    return status;
+
+}
+
+/*******************************************************************************
+**
+** Function         BTM_BleBroadcast
+**
+** Description      This function is to start or stop broadcasting.
+**
+** Parameters       start: start or stop broadcasting.
+**
+** Returns          status.
+**
+*******************************************************************************/
+tBTM_STATUS BTM_BleBroadcast(BOOLEAN start)
+{
+    tBTM_STATUS status = BTM_NO_RESOURCES;
+    tBTM_LE_RANDOM_CB *p_addr_cb = &btm_cb.ble_ctr_cb.addr_mgnt_cb;
+    tBTM_BLE_INQ_CB *p_cb = &btm_cb.ble_ctr_cb.inq_var;
+    UINT8 evt_type = p_cb->scan_rsp ? BTM_BLE_DISCOVER_EVT: BTM_BLE_NON_CONNECT_EVT;
+
+    if (!controller_get_interface()->supports_ble())
+        return BTM_ILLEGAL_VALUE;
+
+#ifdef  BTM_BLE_PC_ADV_TEST_MODE
+    if (BTM_BLE_PC_ADV_TEST_MODE)
+    {
+        evt_type = p_cb->scan_rsp ? BTM_BLE_CONNECT_EVT: BTM_BLE_NON_CONNECT_EVT;
+    }
+#endif
+
+    if (start && p_cb->adv_mode == BTM_BLE_ADV_DISABLE)
+    {
+        /* update adv params */
+        if (!btsnd_hcic_ble_write_adv_params ((UINT16)(p_cb->adv_interval_min ? p_cb->adv_interval_min :
+                                              BTM_BLE_GAP_ADV_INT),
+                                              (UINT16)(p_cb->adv_interval_max ? p_cb->adv_interval_max :
+                                              BTM_BLE_GAP_ADV_INT),
+                                              evt_type,
+                                              p_addr_cb->own_addr_type,
+                                              p_cb->direct_bda.type,
+                                              p_cb->direct_bda.bda,
+                                              p_cb->adv_chnl_map,
+                                              p_cb->afp))
+
+            status = BTM_NO_RESOURCES;
+        else
+            p_cb->evt_type = evt_type;
+
+        status = btm_ble_start_adv ();
+    }
+    else if (!start)
+    {
+        status = btm_ble_stop_adv();
+#if BLE_PRIVACY_SPT == TRUE
+        btm_ble_disable_resolving_list(BTM_BLE_RL_ADV, TRUE);
+#endif
+    }
+    else
+    {
+        status = BTM_WRONG_MODE;
+        BTM_TRACE_ERROR("Can not %s Broadcast, device %s in Broadcast mode",
+            (start ? "Start" : "Stop"), (start ? "already" :"not"));
+    }
+    return status;
+}
+
+#if BLE_VND_INCLUDED == TRUE
+/*******************************************************************************
+**
+** Function         btm_vsc_brcm_features_complete
+**
+** Description      Command Complete callback for HCI_BLE_VENDOR_CAP_OCF
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btm_ble_vendor_capability_vsc_cmpl_cback (tBTM_VSC_CMPL *p_vcs_cplt_params)
+{
+    UINT8 status = 0xFF;
+    UINT8 *p;
+
+    BTM_TRACE_DEBUG("%s", __func__);
+
+    /* Check status of command complete event */
+    if ((p_vcs_cplt_params->opcode == HCI_BLE_VENDOR_CAP_OCF) &&
+        (p_vcs_cplt_params->param_len > 0))
+    {
+        p = p_vcs_cplt_params->p_param_buf;
+        STREAM_TO_UINT8(status, p);
+    }
+
+    if (status == HCI_SUCCESS)
+    {
+        STREAM_TO_UINT8(btm_cb.cmn_ble_vsc_cb.adv_inst_max, p);
+        STREAM_TO_UINT8(btm_cb.cmn_ble_vsc_cb.rpa_offloading, p);
+        STREAM_TO_UINT16(btm_cb.cmn_ble_vsc_cb.tot_scan_results_strg, p);
+        STREAM_TO_UINT8(btm_cb.cmn_ble_vsc_cb.max_irk_list_sz, p);
+        STREAM_TO_UINT8(btm_cb.cmn_ble_vsc_cb.filter_support, p);
+        STREAM_TO_UINT8(btm_cb.cmn_ble_vsc_cb.max_filter, p);
+        STREAM_TO_UINT8(btm_cb.cmn_ble_vsc_cb.energy_support, p);
+
+        if (p_vcs_cplt_params->param_len > BTM_VSC_CHIP_CAPABILITY_RSP_LEN_L_RELEASE)
+        {
+            STREAM_TO_UINT16(btm_cb.cmn_ble_vsc_cb.version_supported, p);
+        }
+        else
+        {
+            btm_cb.cmn_ble_vsc_cb.version_supported = BTM_VSC_CHIP_CAPABILITY_L_VERSION;
+        }
+
+        if (btm_cb.cmn_ble_vsc_cb.version_supported >= BTM_VSC_CHIP_CAPABILITY_M_VERSION)
+        {
+            STREAM_TO_UINT16(btm_cb.cmn_ble_vsc_cb.total_trackable_advertisers, p);
+            STREAM_TO_UINT16(btm_cb.cmn_ble_vsc_cb.extended_scan_support, p);
+            STREAM_TO_UINT16(btm_cb.cmn_ble_vsc_cb.debug_logging_supported, p);
+        }
+        btm_cb.cmn_ble_vsc_cb.values_read = TRUE;
+    }
+
+    BTM_TRACE_DEBUG("%s: stat=%d, irk=%d, ADV ins:%d, rpa=%d, ener=%d, ext_scan=%d",
+         __func__, status, btm_cb.cmn_ble_vsc_cb.max_irk_list_sz,
+         btm_cb.cmn_ble_vsc_cb.adv_inst_max, btm_cb.cmn_ble_vsc_cb.rpa_offloading,
+         btm_cb.cmn_ble_vsc_cb.energy_support, btm_cb.cmn_ble_vsc_cb.extended_scan_support);
+
+    if (BTM_BleMaxMultiAdvInstanceCount() > 0)
+        btm_ble_multi_adv_init();
+
+    if (btm_cb.cmn_ble_vsc_cb.max_filter > 0)
+        btm_ble_adv_filter_init();
+
+#if (defined BLE_PRIVACY_SPT && BLE_PRIVACY_SPT == TRUE)
+    /* VS capability included and non-4.2 device */
+    if (btm_cb.cmn_ble_vsc_cb.max_irk_list_sz > 0 &&
+        controller_get_interface()->get_ble_resolving_list_max_size() == 0)
+        btm_ble_resolving_list_init(btm_cb.cmn_ble_vsc_cb.max_irk_list_sz);
+#endif  /* (defined BLE_PRIVACY_SPT && BLE_PRIVACY_SPT == TRUE) */
+
+    if (btm_cb.cmn_ble_vsc_cb.tot_scan_results_strg > 0)
+        btm_ble_batchscan_init();
+
+    if (p_ctrl_le_feature_rd_cmpl_cback != NULL)
+        p_ctrl_le_feature_rd_cmpl_cback(status);
+}
+#endif  /* BLE_VND_INCLUDED == TRUE */
+
+/*******************************************************************************
+**
+** Function         BTM_BleGetVendorCapabilities
+**
+** Description      This function reads local LE features
+**
+** Parameters       p_cmn_vsc_cb : Locala LE capability structure
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTM_BleGetVendorCapabilities(tBTM_BLE_VSC_CB *p_cmn_vsc_cb)
+{
+    BTM_TRACE_DEBUG("BTM_BleGetVendorCapabilities");
+
+    if (NULL != p_cmn_vsc_cb)
+    {
+        *p_cmn_vsc_cb = btm_cb.cmn_ble_vsc_cb;
+    }
+}
+
+/******************************************************************************
+**
+** Function         BTM_BleReadControllerFeatures
+**
+** Description      Reads BLE specific controller features
+**
+** Parameters:      tBTM_BLE_CTRL_FEATURES_CBACK : Callback to notify when features are read
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTM_BleReadControllerFeatures(tBTM_BLE_CTRL_FEATURES_CBACK  *p_vsc_cback)
+{
+    if (TRUE == btm_cb.cmn_ble_vsc_cb.values_read)
+        return;
+
+#if BLE_VND_INCLUDED == TRUE
+    BTM_TRACE_DEBUG("BTM_BleReadControllerFeatures");
+
+    p_ctrl_le_feature_rd_cmpl_cback = p_vsc_cback;
+    if ( BTM_VendorSpecificCommand (HCI_BLE_VENDOR_CAP_OCF,
+                                    0,
+                                    NULL,
+                                    btm_ble_vendor_capability_vsc_cmpl_cback)
+                                    != BTM_CMD_STARTED)
+    {
+        BTM_TRACE_ERROR("LE Get_Vendor Capabilities Command Failed.");
+    }
+#else
+    UNUSED(p_vsc_cback);
+#endif
+    return ;
+}
+
+/*******************************************************************************
+**
+** Function         BTM_BleEnableMixedPrivacyMode
+**
+** Description      This function is called to enabled Mixed mode if privacy 1.2
+**                  is applicable in controller.
+**
+** Parameters       mixed_on:  mixed mode to be used or not.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTM_BleEnableMixedPrivacyMode(BOOLEAN mixed_on)
+{
+
+#if BLE_PRIVACY_SPT == TRUE
+    btm_cb.ble_ctr_cb.mixed_mode = mixed_on;
+
+    /* TODO: send VSC to enabled mixed mode */
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         BTM_BleConfigPrivacy
+**
+** Description      This function is called to enable or disable the privacy in
+**                   LE channel of the local device.
+**
+** Parameters       privacy_mode:  privacy mode on or off.
+**
+** Returns          BOOLEAN privacy mode set success; otherwise failed.
+**
+*******************************************************************************/
+BOOLEAN BTM_BleConfigPrivacy(BOOLEAN privacy_mode)
+{
+#if BLE_PRIVACY_SPT == TRUE
+    tBTM_BLE_CB  *p_cb = &btm_cb.ble_ctr_cb;
+
+    BTM_TRACE_EVENT ("%s", __func__);
+
+    /* if LE is not supported, return error */
+    if (!controller_get_interface()->supports_ble())
+        return FALSE;
+
+    uint8_t addr_resolution = 0;
+    if(!privacy_mode)/* if privacy disabled, always use public address */
+    {
+        p_cb->addr_mgnt_cb.own_addr_type = BLE_ADDR_PUBLIC;
+        p_cb->privacy_mode = BTM_PRIVACY_NONE;
+    }
+    else /* privacy is turned on*/
+    {
+        /* always set host random address, used when privacy 1.1 or priavcy 1.2 is disabled */
+        p_cb->addr_mgnt_cb.own_addr_type = BLE_ADDR_RANDOM;
+        btm_gen_resolvable_private_addr((void *)btm_gen_resolve_paddr_low);
+
+        if (BTM_BleMaxMultiAdvInstanceCount() > 0)
+            btm_ble_multi_adv_enb_privacy(privacy_mode);
+
+        /* 4.2 controller only allow privacy 1.2 or mixed mode, resolvable private address in controller */
+        if (controller_get_interface()->supports_ble_privacy())
+        {
+            addr_resolution = 1;
+            /* check vendor specific capability */
+            p_cb->privacy_mode = btm_cb.ble_ctr_cb.mixed_mode ? BTM_PRIVACY_MIXED : BTM_PRIVACY_1_2;
+        }
+        else  /* 4.1/4.0 controller */
+            p_cb->privacy_mode = BTM_PRIVACY_1_1;
+    }
+
+    GAP_BleAttrDBUpdate (GATT_UUID_GAP_CENTRAL_ADDR_RESOL, (tGAP_BLE_ATTR_VALUE *)&addr_resolution);
+
+    return TRUE;
+#else
+    return FALSE;
+#endif
+}
+
+/*******************************************************************************
+**
+** Function          BTM_BleMaxMultiAdvInstanceCount
+**
+** Description        Returns max number of multi adv instances supported by controller
+**
+** Returns          Max multi adv instance count
+**
+*******************************************************************************/
+extern UINT8  BTM_BleMaxMultiAdvInstanceCount(void)
+{
+    return btm_cb.cmn_ble_vsc_cb.adv_inst_max < BTM_BLE_MULTI_ADV_MAX ?
+        btm_cb.cmn_ble_vsc_cb.adv_inst_max : BTM_BLE_MULTI_ADV_MAX;
+}
+
+#if BLE_PRIVACY_SPT == TRUE
+/*******************************************************************************
+**
+** Function         btm_ble_resolve_random_addr_on_adv
+**
+** Description      resolve random address complete callback.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btm_ble_resolve_random_addr_on_adv(void * p_rec, void *p)
+{
+    tBTM_SEC_DEV_REC    *match_rec = (tBTM_SEC_DEV_REC *) p_rec;
+    UINT8       addr_type = BLE_ADDR_RANDOM;
+    BD_ADDR     bda;
+    UINT8       *pp = (UINT8 *)p + 1;
+    UINT8           evt_type;
+
+    BTM_TRACE_EVENT ("btm_ble_resolve_random_addr_on_adv ");
+
+    STREAM_TO_UINT8    (evt_type, pp);
+    STREAM_TO_UINT8    (addr_type, pp);
+    STREAM_TO_BDADDR   (bda, pp);
+
+    if (match_rec)
+    {
+        BTM_TRACE_DEBUG("Random match");
+        match_rec->ble.active_addr_type = BTM_BLE_ADDR_RRA;
+        memcpy(match_rec->ble.cur_rand_addr, bda, BD_ADDR_LEN);
+
+        if (btm_ble_init_pseudo_addr(match_rec, bda))
+        {
+            memcpy(bda, match_rec->bd_addr, BD_ADDR_LEN);
+        } else {
+            // Assign the original address to be the current report address
+            memcpy(bda, match_rec->ble.pseudo_addr, BD_ADDR_LEN);
+        }
+    }
+
+    btm_ble_process_adv_pkt_cont(bda, addr_type, evt_type, pp);
+
+    return;
+}
+#endif
+
+/*******************************************************************************
+**
+** Function         BTM_BleLocalPrivacyEnabled
+**
+** Description        Checks if local device supports private address
+**
+** Returns          Return TRUE if local privacy is enabled else FALSE
+**
+*******************************************************************************/
+BOOLEAN BTM_BleLocalPrivacyEnabled(void)
+{
+#if BLE_PRIVACY_SPT == TRUE
+    return (btm_cb.ble_ctr_cb.privacy_mode != BTM_PRIVACY_NONE);
+#else
+    return false;
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         BTM_BleSetBgConnType
+**
+** Description      This function is called to set BLE connectable mode for a
+**                  peripheral device.
+**
+** Parameters       bg_conn_type: it can be auto connection, or selective connection.
+**                  p_select_cback: callback function when selective connection procedure
+**                              is being used.
+**
+** Returns          void
+**
+*******************************************************************************/
+BOOLEAN BTM_BleSetBgConnType(tBTM_BLE_CONN_TYPE   bg_conn_type,
+                             tBTM_BLE_SEL_CBACK   *p_select_cback)
+{
+    BOOLEAN started = TRUE;
+
+    BTM_TRACE_EVENT ("BTM_BleSetBgConnType ");
+    if (!controller_get_interface()->supports_ble())
+        return FALSE;
+
+    if (btm_cb.ble_ctr_cb.bg_conn_type != bg_conn_type)
+    {
+        switch (bg_conn_type)
+        {
+            case BTM_BLE_CONN_AUTO:
+                btm_ble_start_auto_conn(TRUE);
+                break;
+
+            case BTM_BLE_CONN_SELECTIVE:
+                if (btm_cb.ble_ctr_cb.bg_conn_type == BTM_BLE_CONN_AUTO)
+                {
+                    btm_ble_start_auto_conn(FALSE);
+                }
+                btm_ble_start_select_conn(TRUE, p_select_cback);
+                break;
+
+            case BTM_BLE_CONN_NONE:
+                if (btm_cb.ble_ctr_cb.bg_conn_type == BTM_BLE_CONN_AUTO)
+                {
+                    btm_ble_start_auto_conn(FALSE);
+                }
+                else if (btm_cb.ble_ctr_cb.bg_conn_type == BTM_BLE_CONN_SELECTIVE)
+                {
+                    btm_ble_start_select_conn(FALSE, NULL);
+                }
+                started = TRUE;
+                break;
+
+            default:
+                BTM_TRACE_ERROR("invalid bg connection type : %d ", bg_conn_type);
+                started = FALSE;
+                break;
+        }
+
+        if (started)
+            btm_cb.ble_ctr_cb.bg_conn_type = bg_conn_type;
+    }
+    return started;
+}
+
+/*******************************************************************************
+**
+** Function         BTM_BleClearBgConnDev
+**
+** Description      This function is called to clear the whitelist,
+**                  end any pending whitelist connections,
+*                   and reset the local bg device list.
+**
+** Parameters       void
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTM_BleClearBgConnDev(void)
+{
+    btm_ble_start_auto_conn(FALSE);
+    btm_ble_clear_white_list();
+    gatt_reset_bgdev_list();
+}
+
+/*******************************************************************************
+**
+** Function         BTM_BleUpdateBgConnDev
+**
+** Description      This function is called to add or remove a device into/from
+**                  background connection procedure. The background connection
+*                   procedure is decided by the background connection type, it can be
+*                   auto connection, or selective connection.
+**
+** Parameters       add_remove: TRUE to add; FALSE to remove.
+**                  remote_bda: device address to add/remove.
+**
+** Returns          void
+**
+*******************************************************************************/
+BOOLEAN BTM_BleUpdateBgConnDev(BOOLEAN add_remove, BD_ADDR   remote_bda)
+{
+    BTM_TRACE_EVENT("%s() add=%d", __func__, add_remove);
+    return btm_update_dev_to_white_list(add_remove, remote_bda);
+}
+
+/*******************************************************************************
+**
+** Function         BTM_BleSetConnectableMode
+**
+** Description      This function is called to set BLE connectable mode for a
+**                  peripheral device.
+**
+** Parameters       conn_mode:  directed connectable mode, or non-directed.It can
+**                              be BTM_BLE_CONNECT_EVT, BTM_BLE_CONNECT_DIR_EVT or
+**                              BTM_BLE_CONNECT_LO_DUTY_DIR_EVT
+**
+** Returns          BTM_ILLEGAL_VALUE if controller does not support BLE.
+**                  BTM_SUCCESS is status set successfully; otherwise failure.
+**
+*******************************************************************************/
+tBTM_STATUS BTM_BleSetConnectableMode(tBTM_BLE_CONN_MODE connectable_mode)
+{
+    tBTM_BLE_INQ_CB *p_cb = &btm_cb.ble_ctr_cb.inq_var;
+
+    BTM_TRACE_EVENT ("%s connectable_mode = %d ", __func__, connectable_mode);
+    if (!controller_get_interface()->supports_ble())
+        return BTM_ILLEGAL_VALUE;
+
+    p_cb->directed_conn = connectable_mode;
+    return btm_ble_set_connectability( p_cb->connectable_mode);
+}
+
+#if BLE_PRIVACY_SPT == TRUE
+static bool is_resolving_list_bit_set(void *data, void *context)
+{
+    tBTM_SEC_DEV_REC *p_dev_rec = data;
+
+    if ((p_dev_rec->ble.in_controller_list & BTM_RESOLVING_LIST_BIT) != 0)
+        return false;
+
+    return true;
+}
+#endif
+
+/*******************************************************************************
+**
+** Function         btm_set_conn_mode_adv_init_addr
+**
+** Description      set initator address type and local address type based on adv
+**                  mode.
+**
+**
+*******************************************************************************/
+static UINT8 btm_set_conn_mode_adv_init_addr(tBTM_BLE_INQ_CB *p_cb,
+                                     BD_ADDR_PTR p_peer_addr_ptr,
+                                     tBLE_ADDR_TYPE *p_peer_addr_type,
+                                     tBLE_ADDR_TYPE *p_own_addr_type)
+{
+    UINT8 evt_type;
+#if BLE_PRIVACY_SPT == TRUE
+    tBTM_SEC_DEV_REC *p_dev_rec;
+#endif
+
+    evt_type = (p_cb->connectable_mode == BTM_BLE_NON_CONNECTABLE) ? \
+                ((p_cb->scan_rsp) ? BTM_BLE_DISCOVER_EVT : BTM_BLE_NON_CONNECT_EVT )\
+                : BTM_BLE_CONNECT_EVT;
+
+    if (evt_type == BTM_BLE_CONNECT_EVT)
+    {
+        evt_type = p_cb->directed_conn;
+
+        if ( p_cb->directed_conn == BTM_BLE_CONNECT_DIR_EVT ||
+             p_cb->directed_conn == BTM_BLE_CONNECT_LO_DUTY_DIR_EVT)
+        {
+
+#if BLE_PRIVACY_SPT == TRUE
+            /* for privacy 1.2, convert peer address as static, own address set as ID addr */
+            if (btm_cb.ble_ctr_cb.privacy_mode ==  BTM_PRIVACY_1_2 ||
+                btm_cb.ble_ctr_cb.privacy_mode ==  BTM_PRIVACY_MIXED)
+            {
+                /* only do so for bonded device */
+                 if ((p_dev_rec = btm_find_or_alloc_dev (p_cb->direct_bda.bda)) != NULL &&
+                      p_dev_rec->ble.in_controller_list & BTM_RESOLVING_LIST_BIT)
+                 {
+                     btm_ble_enable_resolving_list(BTM_BLE_RL_ADV);
+                     memcpy(p_peer_addr_ptr, p_dev_rec->ble.static_addr, BD_ADDR_LEN);
+                     *p_peer_addr_type = p_dev_rec->ble.static_addr_type;
+                     *p_own_addr_type = BLE_ADDR_RANDOM_ID;
+                     return evt_type;
+                 }
+                 /* otherwise fall though as normal directed adv */
+                 else
+                 {
+                    btm_ble_disable_resolving_list(BTM_BLE_RL_ADV, TRUE);
+                 }
+            }
+#endif
+            /* direct adv mode does not have privacy, if privacy is not enabled  */
+            *p_peer_addr_type  = p_cb->direct_bda.type;
+            memcpy(p_peer_addr_ptr, p_cb->direct_bda.bda, BD_ADDR_LEN);
+            return evt_type;
+        }
+    }
+
+    /* undirect adv mode or non-connectable mode*/
+#if BLE_PRIVACY_SPT == TRUE
+    /* when privacy 1.2 privacy only mode is used, or mixed mode */
+    if ((btm_cb.ble_ctr_cb.privacy_mode ==  BTM_PRIVACY_1_2 && p_cb->afp != AP_SCAN_CONN_ALL) ||
+        btm_cb.ble_ctr_cb.privacy_mode ==  BTM_PRIVACY_MIXED)
+    {
+        list_node_t *n = list_foreach(btm_cb.sec_dev_rec, is_resolving_list_bit_set, NULL);
+        if (n) {
+            /* if enhanced privacy is required, set Identity address and matching IRK peer */
+            tBTM_SEC_DEV_REC  *p_dev_rec = list_node(n);
+            memcpy(p_peer_addr_ptr, p_dev_rec->ble.static_addr, BD_ADDR_LEN);
+            *p_peer_addr_type = p_dev_rec->ble.static_addr_type;
+
+            *p_own_addr_type = BLE_ADDR_RANDOM_ID;
+        } else {
+            /* resolving list is empty, not enabled */
+            *p_own_addr_type = BLE_ADDR_RANDOM;
+        }
+    }
+    /* privacy 1.1, or privacy 1.2, general discoverable/connectable mode, disable privacy in */
+    /* controller fall back to host based privacy */
+    else if (btm_cb.ble_ctr_cb.privacy_mode !=  BTM_PRIVACY_NONE)
+    {
+        *p_own_addr_type = BLE_ADDR_RANDOM;
+    }
+#endif
+
+    /* if no privacy,do not set any peer address,*/
+    /* local address type go by global privacy setting */
+    return evt_type;
+}
+
+/*******************************************************************************
+**
+** Function         BTM_BleSetAdvParams
+**
+** Description      This function is called to set advertising parameters.
+**
+** Parameters       adv_int_min: minimum advertising interval
+**                  adv_int_max: maximum advertising interval
+**                  p_dir_bda: connectable direct initiator's LE device address
+**                  chnl_map: advertising channel map.
+**
+** Returns          void
+**
+*******************************************************************************/
+tBTM_STATUS BTM_BleSetAdvParams(UINT16 adv_int_min, UINT16 adv_int_max,
+                                tBLE_BD_ADDR *p_dir_bda,
+                                tBTM_BLE_ADV_CHNL_MAP chnl_map)
+{
+    tBTM_LE_RANDOM_CB *p_addr_cb = &btm_cb.ble_ctr_cb.addr_mgnt_cb;
+    tBTM_BLE_INQ_CB *p_cb = &btm_cb.ble_ctr_cb.inq_var;
+    tBTM_STATUS status = BTM_SUCCESS;
+    BD_ADDR     p_addr_ptr =  {0};
+    tBLE_ADDR_TYPE   init_addr_type = BLE_ADDR_PUBLIC;
+    tBLE_ADDR_TYPE   own_addr_type = p_addr_cb->own_addr_type;
+    UINT8            adv_mode = p_cb->adv_mode;
+
+    BTM_TRACE_EVENT ("BTM_BleSetAdvParams");
+
+    if (!controller_get_interface()->supports_ble())
+        return BTM_ILLEGAL_VALUE;
+
+    if (!BTM_BLE_ISVALID_PARAM(adv_int_min, BTM_BLE_ADV_INT_MIN, BTM_BLE_ADV_INT_MAX) ||
+        !BTM_BLE_ISVALID_PARAM(adv_int_max, BTM_BLE_ADV_INT_MIN, BTM_BLE_ADV_INT_MAX))
+    {
+        return BTM_ILLEGAL_VALUE;
+    }
+
+    p_cb->adv_interval_min = adv_int_min;
+    p_cb->adv_interval_max = adv_int_max;
+    p_cb->adv_chnl_map = chnl_map;
+
+    if (p_dir_bda)
+    {
+        memcpy(&p_cb->direct_bda, p_dir_bda, sizeof(tBLE_BD_ADDR));
+    }
+
+    BTM_TRACE_EVENT ("update params for an active adv");
+
+    btm_ble_stop_adv();
+
+    p_cb->evt_type = btm_set_conn_mode_adv_init_addr(p_cb, p_addr_ptr, &init_addr_type,
+                                                     &own_addr_type);
+
+    /* update adv params */
+    btsnd_hcic_ble_write_adv_params (p_cb->adv_interval_min,
+                                     p_cb->adv_interval_max,
+                                     p_cb->evt_type,
+                                     own_addr_type,
+                                     init_addr_type,
+                                     p_addr_ptr,
+                                     p_cb->adv_chnl_map,
+                                     p_cb->afp);
+
+    if (adv_mode == BTM_BLE_ADV_ENABLE)
+        btm_ble_start_adv();
+
+    return status;
+}
+
+/*******************************************************************************
+**
+** Function         BTM_BleReadAdvParams
+**
+** Description      This function is called to set advertising parameters.
+**
+** Parameters       adv_int_min: minimum advertising interval
+**                  adv_int_max: maximum advertising interval
+**                  p_dir_bda: connectable direct initiator's LE device address
+**                  chnl_map: advertising channel map.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTM_BleReadAdvParams (UINT16 *adv_int_min, UINT16 *adv_int_max,
+                           tBLE_BD_ADDR *p_dir_bda, tBTM_BLE_ADV_CHNL_MAP *p_chnl_map)
+{
+    tBTM_BLE_INQ_CB *p_cb = &btm_cb.ble_ctr_cb.inq_var;
+
+    BTM_TRACE_EVENT ("BTM_BleReadAdvParams ");
+    if (!controller_get_interface()->supports_ble())
+        return ;
+
+    *adv_int_min = p_cb->adv_interval_min;
+    *adv_int_max = p_cb->adv_interval_max;
+    *p_chnl_map = p_cb->adv_chnl_map;
+
+    if (p_dir_bda != NULL)
+    {
+        memcpy(p_dir_bda, &p_cb->direct_bda, sizeof(tBLE_BD_ADDR));
+    }
+}
+
+/*******************************************************************************
+**
+** Function         BTM_BleSetScanParams
+**
+** Description      This function is called to set scan parameters.
+**
+** Parameters       client_if - Client IF
+**                  scan_interval - Scan interval
+**                  scan_window - Scan window
+**                  scan_mode -    Scan mode
+**                  scan_setup_status_cback - Scan param setup status callback
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTM_BleSetScanParams(tGATT_IF client_if, UINT32 scan_interval, UINT32 scan_window,
+                          tBLE_SCAN_MODE scan_mode,
+                          tBLE_SCAN_PARAM_SETUP_CBACK scan_setup_status_cback)
+{
+    tBTM_BLE_INQ_CB *p_cb = &btm_cb.ble_ctr_cb.inq_var;
+    UINT32 max_scan_interval;
+    UINT32 max_scan_window;
+
+    BTM_TRACE_EVENT ("%s", __func__);
+    if (!controller_get_interface()->supports_ble())
+        return;
+
+    /* If not supporting extended scan support, use the older range for checking */
+    if (btm_cb.cmn_ble_vsc_cb.extended_scan_support == 0)
+    {
+        max_scan_interval = BTM_BLE_SCAN_INT_MAX;
+        max_scan_window = BTM_BLE_SCAN_WIN_MAX;
+    }
+    else
+    {
+        /* If supporting extended scan support, use the new extended range for checking */
+        max_scan_interval = BTM_BLE_EXT_SCAN_INT_MAX;
+        max_scan_window = BTM_BLE_EXT_SCAN_WIN_MAX;
+    }
+
+    if (BTM_BLE_ISVALID_PARAM(scan_interval, BTM_BLE_SCAN_INT_MIN, max_scan_interval) &&
+        BTM_BLE_ISVALID_PARAM(scan_window, BTM_BLE_SCAN_WIN_MIN, max_scan_window) &&
+       (scan_mode == BTM_BLE_SCAN_MODE_ACTI || scan_mode == BTM_BLE_SCAN_MODE_PASS))
+    {
+        p_cb->scan_type = scan_mode;
+        p_cb->scan_interval = scan_interval;
+        p_cb->scan_window = scan_window;
+
+        if (scan_setup_status_cback != NULL)
+            scan_setup_status_cback(client_if, BTM_SUCCESS);
+    }
+    else
+    {
+        if (scan_setup_status_cback != NULL)
+            scan_setup_status_cback(client_if, BTM_ILLEGAL_VALUE);
+
+        BTM_TRACE_ERROR("Illegal params: scan_interval = %d scan_window = %d",
+                        scan_interval, scan_window);
+    }
+
+}
+
+/*******************************************************************************
+**
+** Function         BTM_BleWriteScanRsp
+**
+** Description      This function is called to write LE scan response.
+**
+** Parameters:      p_scan_rsp: scan response information.
+**
+** Returns          void
+**
+*******************************************************************************/
+tBTM_STATUS BTM_BleWriteScanRsp(tBTM_BLE_AD_MASK data_mask, tBTM_BLE_ADV_DATA *p_data)
+{
+    tBTM_STATUS     status = BTM_NO_RESOURCES;
+    UINT8   rsp_data[BTM_BLE_AD_DATA_LEN],
+            *p = rsp_data;
+
+    BTM_TRACE_EVENT ("%s: data_mask:%08x", __func__, data_mask);
+    if (!controller_get_interface()->supports_ble())
+        return BTM_ILLEGAL_VALUE;
+
+    memset(rsp_data, 0, BTM_BLE_AD_DATA_LEN);
+    btm_ble_build_adv_data(&data_mask, &p, p_data);
+
+    if (btsnd_hcic_ble_set_scan_rsp_data((UINT8)(p - rsp_data), rsp_data))
+    {
+        status = BTM_SUCCESS;
+
+        if (data_mask != 0)
+            btm_cb.ble_ctr_cb.inq_var.scan_rsp = TRUE;
+        else
+            btm_cb.ble_ctr_cb.inq_var.scan_rsp = FALSE;
+    }
+    else
+        status = BTM_ILLEGAL_VALUE;
+
+    return status;
+}
+
+/*******************************************************************************
+**
+** Function         BTM_BleWriteAdvData
+**
+** Description      This function is called to write advertising data.
+**
+** Parameters:       None.
+**
+** Returns          void
+**
+*******************************************************************************/
+tBTM_STATUS BTM_BleWriteAdvData(tBTM_BLE_AD_MASK data_mask, tBTM_BLE_ADV_DATA *p_data)
+{
+    tBTM_BLE_LOCAL_ADV_DATA *p_cb_data = &btm_cb.ble_ctr_cb.inq_var.adv_data;
+    UINT8  *p;
+    tBTM_BLE_AD_MASK   mask = data_mask;
+
+    BTM_TRACE_EVENT ("BTM_BleWriteAdvData ");
+
+    if (!controller_get_interface()->supports_ble())
+        return BTM_ILLEGAL_VALUE;
+
+    memset(p_cb_data, 0, sizeof(tBTM_BLE_LOCAL_ADV_DATA));
+    p = p_cb_data->ad_data;
+    p_cb_data->data_mask = data_mask;
+
+    p_cb_data->p_flags = btm_ble_build_adv_data(&mask, &p, p_data);
+
+    p_cb_data->p_pad = p;
+
+    if (mask != 0)
+    {
+        BTM_TRACE_ERROR("Partial data write into ADV");
+    }
+
+    p_cb_data->data_mask &= ~mask;
+
+    if (btsnd_hcic_ble_set_adv_data((UINT8)(p_cb_data->p_pad - p_cb_data->ad_data),
+                                    p_cb_data->ad_data))
+        return BTM_SUCCESS;
+    else
+        return BTM_NO_RESOURCES;
+
+}
+
+/*******************************************************************************
+**
+** Function         BTM_CheckAdvData
+**
+** Description      This function is called to get ADV data for a specific type.
+**
+** Parameters       p_adv - pointer of ADV data
+**                  type   - finding ADV data type
+**                  p_length - return the length of ADV data not including type
+**
+** Returns          pointer of ADV data
+**
+*******************************************************************************/
+UINT8 *BTM_CheckAdvData( UINT8 *p_adv, UINT8 type, UINT8 *p_length)
+{
+    UINT8 *p = p_adv;
+    UINT8 length;
+    UINT8 adv_type;
+    BTM_TRACE_API("%s: type=0x%02x", __func__, type);
+
+    STREAM_TO_UINT8(length, p);
+
+    while ( length && (p - p_adv <= BTM_BLE_CACHE_ADV_DATA_MAX))
+    {
+        STREAM_TO_UINT8(adv_type, p);
+
+        if ( adv_type == type )
+        {
+            /* length doesn't include itself */
+            *p_length = length - 1; /* minus the length of type */
+            return p;
+        }
+        p += length - 1; /* skip the length of data */
+        STREAM_TO_UINT8(length, p);
+    }
+
+    *p_length = 0;
+    return NULL;
+}
+
+/*******************************************************************************
+**
+** Function         BTM__BLEReadDiscoverability
+**
+** Description      This function is called to read the current LE discoverability
+**                  mode of the device.
+**
+** Returns          BTM_BLE_NON_DISCOVERABLE ,BTM_BLE_LIMITED_DISCOVERABLE or
+**                     BTM_BLE_GENRAL_DISCOVERABLE
+**
+*******************************************************************************/
+UINT16 BTM_BleReadDiscoverability()
+{
+    BTM_TRACE_API("%s", __FUNCTION__);
+
+    return (btm_cb.ble_ctr_cb.inq_var.discoverable_mode);
+}
+
+/*******************************************************************************
+**
+** Function         BTM__BLEReadConnectability
+**
+** Description      This function is called to read the current LE connectibility
+**                  mode of the device.
+**
+** Returns          BTM_BLE_NON_CONNECTABLE or BTM_BLE_CONNECTABLE
+**
+*******************************************************************************/
+UINT16 BTM_BleReadConnectability()
+{
+    BTM_TRACE_API ("%s", __FUNCTION__);
+
+    return (btm_cb.ble_ctr_cb.inq_var.connectable_mode);
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_build_adv_data
+**
+** Description      This function is called build the adv data and rsp data.
+*******************************************************************************/
+UINT8 *btm_ble_build_adv_data(tBTM_BLE_AD_MASK *p_data_mask, UINT8 **p_dst,
+                              tBTM_BLE_ADV_DATA *p_data)
+{
+    UINT32 data_mask = *p_data_mask;
+    UINT8   *p = *p_dst,
+    *p_flag = NULL;
+    UINT16  len = BTM_BLE_AD_DATA_LEN, cp_len = 0;
+    UINT8   i = 0;
+    tBTM_BLE_PROP_ELEM      *p_elem;
+
+    BTM_TRACE_EVENT (" btm_ble_build_adv_data");
+
+    /* build the adv data structure and build the data string */
+    if (data_mask)
+    {
+        /* flags */
+        if (data_mask & BTM_BLE_AD_BIT_FLAGS)
+        {
+            *p++ = MIN_ADV_LENGTH;
+            *p++ = BTM_BLE_AD_TYPE_FLAG;
+            p_flag = p;
+            if (p_data)
+                *p++ = p_data->flag;
+            else
+                *p++ = 0;
+
+            len -= 3;
+
+            data_mask &= ~BTM_BLE_AD_BIT_FLAGS;
+        }
+        /* appearance data */
+        if (len > 3 && data_mask & BTM_BLE_AD_BIT_APPEARANCE)
+        {
+            *p++ = 3; /* length */
+            *p++ = BTM_BLE_AD_TYPE_APPEARANCE;
+            UINT16_TO_STREAM(p, p_data->appearance);
+            len -= 4;
+
+            data_mask &= ~BTM_BLE_AD_BIT_APPEARANCE;
+        }
+        /* device name */
+#if BTM_MAX_LOC_BD_NAME_LEN > 0
+        if (len > MIN_ADV_LENGTH && data_mask & BTM_BLE_AD_BIT_DEV_NAME)
+        {
+            if (strlen(btm_cb.cfg.bd_name) > (UINT16)(len - MIN_ADV_LENGTH))
+            {
+                *p++ = len - MIN_ADV_LENGTH + 1;
+                *p++ = BTM_BLE_AD_TYPE_NAME_SHORT;
+                ARRAY_TO_STREAM(p, btm_cb.cfg.bd_name, len - MIN_ADV_LENGTH);
+            }
+            else
+            {
+                cp_len = (UINT16)strlen(btm_cb.cfg.bd_name);
+                *p++ = cp_len + 1;
+                *p++ = BTM_BLE_AD_TYPE_NAME_CMPL;
+                ARRAY_TO_STREAM(p, btm_cb.cfg.bd_name, cp_len);
+            }
+            len -= (cp_len + MIN_ADV_LENGTH);
+            data_mask &= ~BTM_BLE_AD_BIT_DEV_NAME;
+        }
+#endif
+        /* manufacturer data */
+        if (len > MIN_ADV_LENGTH && data_mask & BTM_BLE_AD_BIT_MANU &&
+            p_data && p_data->manu.len != 0)
+        {
+            if (p_data->manu.len > (len - MIN_ADV_LENGTH))
+                cp_len = len - MIN_ADV_LENGTH;
+            else
+                cp_len = p_data->manu.len;
+
+            *p++ = cp_len + 1;
+            *p++ = BTM_BLE_AD_TYPE_MANU;
+            ARRAY_TO_STREAM(p, p_data->manu.val, cp_len);
+
+            len -= (cp_len + MIN_ADV_LENGTH);
+            data_mask &= ~BTM_BLE_AD_BIT_MANU;
+        }
+        /* TX power */
+        if (len > MIN_ADV_LENGTH && data_mask & BTM_BLE_AD_BIT_TX_PWR)
+        {
+            *p++ = MIN_ADV_LENGTH;
+            *p++ = BTM_BLE_AD_TYPE_TX_PWR;
+            if (p_data->tx_power > BTM_BLE_ADV_TX_POWER_MAX)
+                p_data->tx_power = BTM_BLE_ADV_TX_POWER_MAX;
+            *p++ = btm_ble_map_adv_tx_power(p_data->tx_power);
+            len -= 3;
+            data_mask &= ~BTM_BLE_AD_BIT_TX_PWR;
+        }
+        /* 16 bits services */
+        if (len > MIN_ADV_LENGTH && data_mask & BTM_BLE_AD_BIT_SERVICE &&
+            p_data && p_data->services.num_service != 0)
+        {
+            if (p_data->services.num_service * LEN_UUID_16 > (len - MIN_ADV_LENGTH))
+            {
+                cp_len = (len - MIN_ADV_LENGTH)/LEN_UUID_16;
+                *p ++ = 1 + cp_len * LEN_UUID_16;
+                *p++ = BTM_BLE_AD_TYPE_16SRV_PART;
+            }
+            else
+            {
+                cp_len = p_data->services.num_service;
+                *p++ = 1 + cp_len * LEN_UUID_16;
+                *p++ = BTM_BLE_AD_TYPE_16SRV_CMPL;
+            }
+            for (i = 0; i < cp_len; i ++)
+            {
+                UINT16_TO_STREAM(p, *(p_data->services.uuid + i));
+            }
+
+            len -= (cp_len * MIN_ADV_LENGTH + MIN_ADV_LENGTH);
+            data_mask &= ~BTM_BLE_AD_BIT_SERVICE;
+        }
+        /* 32 bits service uuid */
+        if (len > MIN_ADV_LENGTH && data_mask & BTM_BLE_AD_BIT_SERVICE_32 &&
+            p_data && p_data->service_32b.num_service != 0)
+        {
+            if ((p_data->service_32b.num_service * LEN_UUID_32) > (len - MIN_ADV_LENGTH))
+            {
+                cp_len = (len - MIN_ADV_LENGTH)/LEN_UUID_32;
+                *p ++ = 1 + cp_len * LEN_UUID_32;
+                *p++ = BTM_BLE_AD_TYPE_32SRV_PART;
+            }
+            else
+            {
+                cp_len = p_data->service_32b.num_service;
+                *p++ = 1 + cp_len * LEN_UUID_32;
+                *p++ = BTM_BLE_AD_TYPE_32SRV_CMPL;
+            }
+            for (i = 0; i < cp_len; i ++)
+            {
+                UINT32_TO_STREAM(p, *(p_data->service_32b.uuid + i));
+            }
+
+            len -= (cp_len * LEN_UUID_32 + MIN_ADV_LENGTH);
+            data_mask &= ~BTM_BLE_AD_BIT_SERVICE_32;
+        }
+        /* 128 bits services */
+        if (len >= (MAX_UUID_SIZE + 2) && data_mask & BTM_BLE_AD_BIT_SERVICE_128 &&
+            p_data && p_data->services_128b.num_service)
+        {
+            *p ++ = 1 + MAX_UUID_SIZE;
+            if (!p_data->services_128b.list_cmpl)
+                *p++ = BTM_BLE_AD_TYPE_128SRV_PART;
+            else
+                *p++ = BTM_BLE_AD_TYPE_128SRV_CMPL;
+
+            ARRAY_TO_STREAM(p, p_data->services_128b.uuid128, MAX_UUID_SIZE);
+
+            len -= (MAX_UUID_SIZE + MIN_ADV_LENGTH);
+            data_mask &= ~BTM_BLE_AD_BIT_SERVICE_128;
+        }
+        /* 32 bits Service Solicitation UUIDs */
+        if (len > MIN_ADV_LENGTH && data_mask & BTM_BLE_AD_BIT_SERVICE_32SOL &&
+            p_data->sol_service_32b.num_service != 0)
+        {
+            if ((p_data->sol_service_32b.num_service * LEN_UUID_32) > (len - MIN_ADV_LENGTH))
+            {
+                cp_len = (len - MIN_ADV_LENGTH)/LEN_UUID_32;
+                *p ++ = 1 + cp_len * LEN_UUID_32;
+            }
+            else
+            {
+                cp_len = p_data->sol_service_32b.num_service;
+                *p++ = 1 + cp_len * LEN_UUID_32;
+            }
+
+            *p++ = BTM_BLE_AD_TYPE_32SOL_SRV_UUID;
+            for (i = 0; i < cp_len; i ++)
+            {
+                UINT32_TO_STREAM(p, *(p_data->sol_service_32b.uuid + i));
+            }
+
+            len -= (cp_len * LEN_UUID_32 + MIN_ADV_LENGTH);
+            data_mask &= ~BTM_BLE_AD_BIT_SERVICE_32SOL;
+        }
+        /* 128 bits Solicitation services UUID */
+        if (len >= (MAX_UUID_SIZE + MIN_ADV_LENGTH) && data_mask & BTM_BLE_AD_BIT_SERVICE_128SOL &&
+            p_data && p_data->sol_service_128b.num_service)
+        {
+            *p ++ = 1 + MAX_UUID_SIZE;
+            *p++ = BTM_BLE_AD_TYPE_128SOL_SRV_UUID;
+            ARRAY_TO_STREAM(p, p_data->sol_service_128b.uuid128, MAX_UUID_SIZE);
+            len -= (MAX_UUID_SIZE + MIN_ADV_LENGTH);
+            data_mask &= ~BTM_BLE_AD_BIT_SERVICE_128SOL;
+        }
+        /* 16bits/32bits/128bits Service Data */
+        if (len > MIN_ADV_LENGTH && data_mask & BTM_BLE_AD_BIT_SERVICE_DATA &&
+            p_data && p_data->service_data.len != 0)
+        {
+            if (len  > (p_data->service_data.service_uuid.len + MIN_ADV_LENGTH))
+            {
+                if (p_data->service_data.len > (len - MIN_ADV_LENGTH))
+                    cp_len = len - MIN_ADV_LENGTH- p_data->service_data.service_uuid.len;
+                else
+                    cp_len = p_data->service_data.len;
+
+                *p++ = cp_len + 1 + p_data->service_data.service_uuid.len;
+                if (p_data->service_data.service_uuid.len == LEN_UUID_16)
+                {
+                    *p++ = BTM_BLE_AD_TYPE_SERVICE_DATA;
+                    UINT16_TO_STREAM(p, p_data->service_data.service_uuid.uu.uuid16);
+                }
+                else if (p_data->service_data.service_uuid.len == LEN_UUID_32)
+                {
+                    *p++ = BTM_BLE_AD_TYPE_32SERVICE_DATA;
+                    UINT32_TO_STREAM(p, p_data->service_data.service_uuid.uu.uuid32);
+                }
+                else
+                {
+                    *p++ = BTM_BLE_AD_TYPE_128SERVICE_DATA;
+                    ARRAY_TO_STREAM(p, p_data->service_data.service_uuid.uu.uuid128,
+                                    LEN_UUID_128);
+                }
+
+                ARRAY_TO_STREAM(p, p_data->service_data.val, cp_len);
+
+                len -= (cp_len + MIN_ADV_LENGTH + p_data->service_data.service_uuid.len);
+                data_mask &= ~BTM_BLE_AD_BIT_SERVICE_DATA;
+            }
+            else
+            {
+                BTM_TRACE_WARNING("service data does not fit");
+            }
+        }
+
+        if (len >= 6 && data_mask & BTM_BLE_AD_BIT_INT_RANGE &&
+            p_data)
+        {
+            *p++ = 5;
+            *p++ = BTM_BLE_AD_TYPE_INT_RANGE;
+            UINT16_TO_STREAM(p, p_data->int_range.low);
+            UINT16_TO_STREAM(p, p_data->int_range.hi);
+            len -= 6;
+            data_mask &= ~BTM_BLE_AD_BIT_INT_RANGE;
+        }
+        if (data_mask & BTM_BLE_AD_BIT_PROPRIETARY && p_data)
+        {
+            for (i = 0; i < p_data->proprietary.num_elem; ++i)
+            {
+                p_elem = &p_data->proprietary.elem[i];
+
+                if (len >= (MIN_ADV_LENGTH + p_elem->len))/* len byte(1) + ATTR type(1) + Uuid len(2)
+                                                          + value length */
+                {
+                    *p ++ = p_elem->len + 1; /* Uuid len + value length */
+                    *p ++ = p_elem->adv_type;
+                    ARRAY_TO_STREAM(p, p_elem->val, p_elem->len);
+
+                    len -= (MIN_ADV_LENGTH + p_elem->len);
+                }
+                else
+                {
+                    BTM_TRACE_WARNING("data exceed max adv packet length");
+                    break;
+                }
+            }
+            data_mask &= ~BTM_BLE_AD_BIT_PROPRIETARY;
+        }
+    }
+
+    *p_data_mask = data_mask;
+    *p_dst = p;
+
+    return p_flag;
+}
+/*******************************************************************************
+**
+** Function         btm_ble_select_adv_interval
+**
+** Description      select adv interval based on device mode
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_ble_select_adv_interval(tBTM_BLE_INQ_CB *p_cb, UINT8 evt_type, UINT16 *p_adv_int_min, UINT16 *p_adv_int_max)
+{
+    if (p_cb->adv_interval_min && p_cb->adv_interval_max)
+    {
+        *p_adv_int_min = p_cb->adv_interval_min;
+        *p_adv_int_max = p_cb->adv_interval_max;
+    }
+    else
+    {
+        switch (evt_type)
+        {
+        case BTM_BLE_CONNECT_EVT:
+        case BTM_BLE_CONNECT_LO_DUTY_DIR_EVT:
+            *p_adv_int_min = *p_adv_int_max = BTM_BLE_GAP_ADV_FAST_INT_1;
+            break;
+
+        case BTM_BLE_NON_CONNECT_EVT:
+        case BTM_BLE_DISCOVER_EVT:
+            *p_adv_int_min = *p_adv_int_max = BTM_BLE_GAP_ADV_FAST_INT_2;
+            break;
+
+        /* connectable directed event */
+        case BTM_BLE_CONNECT_DIR_EVT:
+            *p_adv_int_min = BTM_BLE_GAP_ADV_DIR_MIN_INT;
+            *p_adv_int_max = BTM_BLE_GAP_ADV_DIR_MAX_INT;
+            break;
+
+        default:
+            *p_adv_int_min = *p_adv_int_max = BTM_BLE_GAP_ADV_SLOW_INT;
+            break;
+        }
+    }
+    return;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_update_dmt_flag_bits
+**
+** Description      Obtain updated adv flag value based on connect and discoverability mode.
+**                  Also, setup DMT support value in the flag based on whether the controller
+**                  supports both LE and BR/EDR.
+**
+** Parameters:      flag_value (Input / Output) - flag value
+**                  connect_mode (Input) - Connect mode value
+**                  disc_mode (Input) - discoverability mode
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_ble_update_dmt_flag_bits(UINT8 *adv_flag_value, const UINT16 connect_mode,
+                                   const UINT16 disc_mode)
+{
+    /* BR/EDR non-discoverable , non-connectable */
+    if ((disc_mode & BTM_DISCOVERABLE_MASK) == 0 &&
+        (connect_mode & BTM_CONNECTABLE_MASK) == 0)
+        *adv_flag_value |= BTM_BLE_BREDR_NOT_SPT;
+    else
+        *adv_flag_value &= ~BTM_BLE_BREDR_NOT_SPT;
+
+    /* if local controller support, mark both controller and host support in flag */
+    if (controller_get_interface()->supports_simultaneous_le_bredr())
+        *adv_flag_value |= (BTM_BLE_DMT_CONTROLLER_SPT|BTM_BLE_DMT_HOST_SPT);
+    else
+        *adv_flag_value &= ~(BTM_BLE_DMT_CONTROLLER_SPT|BTM_BLE_DMT_HOST_SPT);
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_set_adv_flag
+**
+** Description      Set adv flag in adv data.
+**
+** Parameters:      connect_mode (Input)- Connect mode value
+**                  disc_mode (Input) - discoverability mode
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_ble_set_adv_flag(UINT16 connect_mode, UINT16 disc_mode)
+{
+    UINT8 flag = 0, old_flag = 0;
+    tBTM_BLE_LOCAL_ADV_DATA *p_adv_data = &btm_cb.ble_ctr_cb.inq_var.adv_data;
+
+    if (p_adv_data->p_flags != NULL)
+        flag = old_flag = *(p_adv_data->p_flags);
+
+    btm_ble_update_dmt_flag_bits (&flag, connect_mode, disc_mode);
+
+    LOG_DEBUG(LOG_TAG, "disc_mode %04x", disc_mode);
+    /* update discoverable flag */
+    if (disc_mode & BTM_BLE_LIMITED_DISCOVERABLE)
+    {
+        flag &= ~BTM_BLE_GEN_DISC_FLAG;
+        flag |= BTM_BLE_LIMIT_DISC_FLAG;
+    }
+    else if (disc_mode & BTM_BLE_GENERAL_DISCOVERABLE)
+    {
+        flag |= BTM_BLE_GEN_DISC_FLAG;
+        flag &= ~BTM_BLE_LIMIT_DISC_FLAG;
+    }
+    else /* remove all discoverable flags */
+    {
+        flag &= ~(BTM_BLE_LIMIT_DISC_FLAG|BTM_BLE_GEN_DISC_FLAG);
+    }
+
+    if (flag != old_flag)
+    {
+        btm_ble_update_adv_flag(flag);
+    }
+}
+/*******************************************************************************
+**
+** Function         btm_ble_set_discoverability
+**
+** Description      This function is called to set BLE discoverable mode.
+**
+** Parameters:      combined_mode: discoverability mode.
+**
+** Returns          BTM_SUCCESS is status set successfully; otherwise failure.
+**
+*******************************************************************************/
+tBTM_STATUS btm_ble_set_discoverability(UINT16 combined_mode)
+{
+    tBTM_LE_RANDOM_CB   *p_addr_cb = &btm_cb.ble_ctr_cb.addr_mgnt_cb;
+    tBTM_BLE_INQ_CB     *p_cb = &btm_cb.ble_ctr_cb.inq_var;
+    UINT16              mode = (combined_mode &  BTM_BLE_DISCOVERABLE_MASK);
+    UINT8               new_mode = BTM_BLE_ADV_ENABLE;
+    UINT8               evt_type;
+    tBTM_STATUS         status = BTM_SUCCESS;
+    BD_ADDR             p_addr_ptr= {0};
+    tBLE_ADDR_TYPE      init_addr_type = BLE_ADDR_PUBLIC,
+                        own_addr_type = p_addr_cb->own_addr_type;
+    UINT16              adv_int_min, adv_int_max;
+
+    BTM_TRACE_EVENT ("%s mode=0x%0x combined_mode=0x%x", __FUNCTION__, mode, combined_mode);
+
+    /*** Check mode parameter ***/
+    if (mode > BTM_BLE_MAX_DISCOVERABLE)
+        return(BTM_ILLEGAL_VALUE);
+
+    p_cb->discoverable_mode = mode;
+
+    evt_type = btm_set_conn_mode_adv_init_addr(p_cb, p_addr_ptr, &init_addr_type, &own_addr_type);
+
+    if (p_cb->connectable_mode == BTM_BLE_NON_CONNECTABLE && mode == BTM_BLE_NON_DISCOVERABLE)
+        new_mode = BTM_BLE_ADV_DISABLE;
+
+    btm_ble_select_adv_interval(p_cb, evt_type, &adv_int_min, &adv_int_max);
+
+    alarm_cancel(p_cb->fast_adv_timer);
+
+    /* update adv params if start advertising */
+    BTM_TRACE_EVENT ("evt_type=0x%x p-cb->evt_type=0x%x ", evt_type, p_cb->evt_type);
+
+    if (new_mode == BTM_BLE_ADV_ENABLE)
+    {
+        btm_ble_set_adv_flag (btm_cb.btm_inq_vars.connectable_mode, combined_mode);
+
+        if (evt_type != p_cb->evt_type ||p_cb->adv_addr_type != own_addr_type
+            || !p_cb->fast_adv_on)
+        {
+            btm_ble_stop_adv();
+
+            /* update adv params */
+            if (!btsnd_hcic_ble_write_adv_params (adv_int_min,
+                                                  adv_int_max,
+                                                  evt_type,
+                                                  own_addr_type,
+                                                  init_addr_type,
+                                                  p_addr_ptr,
+                                                  p_cb->adv_chnl_map,
+                                                  p_cb->afp))
+            {
+                status = BTM_NO_RESOURCES;
+            }
+            else
+            {
+                p_cb->evt_type = evt_type;
+                p_cb->adv_addr_type = own_addr_type;
+            }
+        }
+    }
+
+    if (status == BTM_SUCCESS && p_cb->adv_mode != new_mode)
+    {
+        if (new_mode == BTM_BLE_ADV_ENABLE)
+            status = btm_ble_start_adv();
+        else
+            status = btm_ble_stop_adv();
+    }
+
+    if (p_cb->adv_mode == BTM_BLE_ADV_ENABLE)
+    {
+        p_cb->fast_adv_on = TRUE;
+        /* start initial GAP mode adv timer */
+        alarm_set_on_queue(p_cb->fast_adv_timer,
+                           BTM_BLE_GAP_FAST_ADV_TIMEOUT_MS,
+                           btm_ble_fast_adv_timer_timeout, NULL,
+                           btu_general_alarm_queue);
+    }
+    else
+    {
+#if BLE_PRIVACY_SPT == TRUE
+        btm_ble_disable_resolving_list(BTM_BLE_RL_ADV, TRUE);
+#endif
+    }
+
+    /* set up stop advertising timer */
+    if (status == BTM_SUCCESS && mode == BTM_BLE_LIMITED_DISCOVERABLE)
+    {
+        BTM_TRACE_EVENT("start timer for limited disc mode duration=%d ms",
+                        BTM_BLE_GAP_LIM_TIMEOUT_MS);
+        /* start Tgap(lim_timeout) */
+        alarm_set_on_queue(p_cb->inquiry_timer, BTM_BLE_GAP_LIM_TIMEOUT_MS,
+                           btm_ble_inquiry_timer_gap_limited_discovery_timeout,
+                           NULL, btu_general_alarm_queue);
+    }
+    return status;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_set_connectability
+**
+** Description      This function is called to set BLE connectability mode.
+**
+** Parameters:      combined_mode: connectability mode.
+**
+** Returns          BTM_SUCCESS is status set successfully; otherwise failure.
+**
+*******************************************************************************/
+tBTM_STATUS btm_ble_set_connectability(UINT16 combined_mode)
+{
+    tBTM_LE_RANDOM_CB       *p_addr_cb = &btm_cb.ble_ctr_cb.addr_mgnt_cb;
+    tBTM_BLE_INQ_CB         *p_cb = &btm_cb.ble_ctr_cb.inq_var;
+    UINT16                  mode = (combined_mode & BTM_BLE_CONNECTABLE_MASK);
+    UINT8                   new_mode = BTM_BLE_ADV_ENABLE;
+    UINT8                   evt_type;
+    tBTM_STATUS             status = BTM_SUCCESS;
+    BD_ADDR                 p_addr_ptr =  {0};
+    tBLE_ADDR_TYPE          peer_addr_type = BLE_ADDR_PUBLIC,
+                            own_addr_type = p_addr_cb->own_addr_type;
+    UINT16                  adv_int_min, adv_int_max;
+
+    BTM_TRACE_EVENT ("%s mode=0x%0x combined_mode=0x%x", __FUNCTION__, mode, combined_mode);
+
+    /*** Check mode parameter ***/
+    if (mode > BTM_BLE_MAX_CONNECTABLE)
+        return(BTM_ILLEGAL_VALUE);
+
+    p_cb->connectable_mode = mode;
+
+    evt_type = btm_set_conn_mode_adv_init_addr(p_cb, p_addr_ptr, &peer_addr_type, &own_addr_type);
+
+    if (mode == BTM_BLE_NON_CONNECTABLE && p_cb->discoverable_mode == BTM_BLE_NON_DISCOVERABLE)
+        new_mode = BTM_BLE_ADV_DISABLE;
+
+    btm_ble_select_adv_interval(p_cb, evt_type, &adv_int_min, &adv_int_max);
+
+    alarm_cancel(p_cb->fast_adv_timer);
+    /* update adv params if needed */
+    if (new_mode == BTM_BLE_ADV_ENABLE)
+    {
+        btm_ble_set_adv_flag (combined_mode, btm_cb.btm_inq_vars.discoverable_mode);
+        if (p_cb->evt_type != evt_type || p_cb->adv_addr_type != p_addr_cb->own_addr_type
+            || !p_cb->fast_adv_on)
+        {
+            btm_ble_stop_adv();
+
+            if (!btsnd_hcic_ble_write_adv_params (adv_int_min,
+                                                  adv_int_max,
+                                                  evt_type,
+                                                  own_addr_type,
+                                                  peer_addr_type,
+                                                  p_addr_ptr,
+                                                  p_cb->adv_chnl_map,
+                                                  p_cb->afp))
+            {
+                status = BTM_NO_RESOURCES;
+            }
+            else
+            {
+                p_cb->evt_type = evt_type;
+                p_cb->adv_addr_type = own_addr_type;
+            }
+        }
+    }
+
+    /* update advertising mode */
+    if (status == BTM_SUCCESS && new_mode != p_cb->adv_mode)
+    {
+        if (new_mode == BTM_BLE_ADV_ENABLE)
+            status = btm_ble_start_adv();
+        else
+            status = btm_ble_stop_adv();
+    }
+
+    if (p_cb->adv_mode == BTM_BLE_ADV_ENABLE)
+    {
+        p_cb->fast_adv_on = TRUE;
+        /* start initial GAP mode adv timer */
+        alarm_set_on_queue(p_cb->fast_adv_timer,
+                           BTM_BLE_GAP_FAST_ADV_TIMEOUT_MS,
+                           btm_ble_fast_adv_timer_timeout, NULL,
+                           btu_general_alarm_queue);
+    }
+    else
+    {
+#if BLE_PRIVACY_SPT == TRUE
+        btm_ble_disable_resolving_list(BTM_BLE_RL_ADV, TRUE);
+#endif
+    }
+    return status;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_start_inquiry
+**
+** Description      This function is called to start BLE inquiry procedure.
+**                  If the duration is zero, the periodic inquiry mode is cancelled.
+**
+** Parameters:      mode - GENERAL or LIMITED inquiry
+**                  p_inq_params - pointer to the BLE inquiry parameter.
+**                  p_results_cb - callback returning pointer to results (tBTM_INQ_RESULTS)
+**                  p_cmpl_cb - callback indicating the end of an inquiry
+**
+**
+**
+** Returns          BTM_CMD_STARTED if successfully started
+**                  BTM_NO_RESOURCES if could not allocate a message buffer
+**                  BTM_BUSY - if an inquiry is already active
+**
+*******************************************************************************/
+tBTM_STATUS btm_ble_start_inquiry (UINT8 mode, UINT8   duration)
+{
+    tBTM_STATUS status = BTM_CMD_STARTED;
+    tBTM_BLE_CB *p_ble_cb = &btm_cb.ble_ctr_cb;
+    tBTM_INQUIRY_VAR_ST      *p_inq = &btm_cb.btm_inq_vars;
+
+    BTM_TRACE_DEBUG("btm_ble_start_inquiry: mode = %02x inq_active = 0x%02x", mode, btm_cb.btm_inq_vars.inq_active);
+
+    /* if selective connection is active, or inquiry is already active, reject it */
+    if (BTM_BLE_IS_INQ_ACTIVE(p_ble_cb->scan_activity) ||
+        BTM_BLE_IS_SEL_CONN_ACTIVE (p_ble_cb->scan_activity))
+    {
+        BTM_TRACE_ERROR("LE Inquiry is active, can not start inquiry");
+        return(BTM_BUSY);
+    }
+
+    if (!BTM_BLE_IS_SCAN_ACTIVE(p_ble_cb->scan_activity))
+    {
+        btsnd_hcic_ble_set_scan_params(BTM_BLE_SCAN_MODE_ACTI,
+                                        BTM_BLE_LOW_LATENCY_SCAN_INT,
+                                        BTM_BLE_LOW_LATENCY_SCAN_WIN,
+                                        btm_cb.ble_ctr_cb.addr_mgnt_cb.own_addr_type,
+                                        SP_ADV_ALL);
+#if (defined BLE_PRIVACY_SPT && BLE_PRIVACY_SPT == TRUE)
+        /* enable IRK list */
+        btm_ble_enable_resolving_list_for_platform(BTM_BLE_RL_SCAN);
+#endif
+        p_ble_cb->inq_var.scan_duplicate_filter  = BTM_BLE_DUPLICATE_DISABLE;
+        status = btm_ble_start_scan();
+    }
+    else if ((p_ble_cb->inq_var.scan_interval != BTM_BLE_LOW_LATENCY_SCAN_INT) ||
+            (p_ble_cb->inq_var.scan_window != BTM_BLE_LOW_LATENCY_SCAN_WIN)) {
+        BTM_TRACE_DEBUG("%s, restart LE scan with low latency scan params", __FUNCTION__);
+        btsnd_hcic_ble_set_scan_enable(BTM_BLE_SCAN_DISABLE, BTM_BLE_DUPLICATE_ENABLE);
+        btsnd_hcic_ble_set_scan_params(BTM_BLE_SCAN_MODE_ACTI,
+                                        BTM_BLE_LOW_LATENCY_SCAN_INT,
+                                        BTM_BLE_LOW_LATENCY_SCAN_WIN,
+                                        btm_cb.ble_ctr_cb.addr_mgnt_cb.own_addr_type,
+                                        SP_ADV_ALL);
+        btsnd_hcic_ble_set_scan_enable(BTM_BLE_SCAN_ENABLE, BTM_BLE_DUPLICATE_DISABLE);
+    }
+
+    if (status == BTM_CMD_STARTED)
+    {
+        p_inq->inq_active |= mode;
+        p_ble_cb->scan_activity |= mode;
+
+        BTM_TRACE_DEBUG("btm_ble_start_inquiry inq_active = 0x%02x", p_inq->inq_active);
+
+        if (duration != 0) {
+            /* start inquiry timer */
+            period_ms_t duration_ms = duration * 1000;
+            alarm_set_on_queue(p_ble_cb->inq_var.inquiry_timer,
+                               duration_ms, btm_ble_inquiry_timer_timeout,
+                               NULL, btu_general_alarm_queue);
+        }
+    }
+
+    return status;
+
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_read_remote_name_cmpl
+**
+** Description      This function is called when BLE remote name is received.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_ble_read_remote_name_cmpl(BOOLEAN status, BD_ADDR bda, UINT16 length, char *p_name)
+{
+    UINT8   hci_status = HCI_SUCCESS;
+    BD_NAME bd_name;
+
+    memset(bd_name, 0, (BD_NAME_LEN + 1));
+    if (length > BD_NAME_LEN)
+    {
+        length = BD_NAME_LEN;
+    }
+    memcpy((UINT8*)bd_name, p_name, length);
+
+    if ((!status) || (length==0))
+    {
+        hci_status = HCI_ERR_HOST_TIMEOUT;
+    }
+
+    btm_process_remote_name(bda, bd_name, length +1, hci_status);
+    btm_sec_rmt_name_request_complete (bda, (UINT8 *)p_name, hci_status);
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_read_remote_name
+**
+** Description      This function read remote LE device name using GATT read
+**                  procedure.
+**
+** Parameters:       None.
+**
+** Returns          void
+**
+*******************************************************************************/
+tBTM_STATUS btm_ble_read_remote_name(BD_ADDR remote_bda, tBTM_INQ_INFO *p_cur, tBTM_CMPL_CB *p_cb)
+{
+    tBTM_INQUIRY_VAR_ST      *p_inq = &btm_cb.btm_inq_vars;
+
+    if (!controller_get_interface()->supports_ble())
+        return BTM_ERR_PROCESSING;
+
+    if (p_cur &&
+        p_cur->results.ble_evt_type != BTM_BLE_EVT_CONN_ADV &&
+        p_cur->results.ble_evt_type != BTM_BLE_EVT_CONN_DIR_ADV)
+    {
+        BTM_TRACE_DEBUG("name request to non-connectable device failed.");
+        return BTM_ERR_PROCESSING;
+    }
+
+    /* read remote device name using GATT procedure */
+    if (p_inq->remname_active)
+        return BTM_BUSY;
+
+    if (!GAP_BleReadPeerDevName(remote_bda, btm_ble_read_remote_name_cmpl))
+        return BTM_BUSY;
+
+    p_inq->p_remname_cmpl_cb = p_cb;
+    p_inq->remname_active = TRUE;
+
+    memcpy(p_inq->remname_bda, remote_bda, BD_ADDR_LEN);
+
+    alarm_set_on_queue(p_inq->remote_name_timer,
+                       BTM_EXT_BLE_RMT_NAME_TIMEOUT_MS,
+                       btm_inq_remote_name_timer_timeout, NULL,
+                       btu_general_alarm_queue);
+
+    return BTM_CMD_STARTED;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_cancel_remote_name
+**
+** Description      This function cancel read remote LE device name.
+**
+** Parameters:       None.
+**
+** Returns          void
+**
+*******************************************************************************/
+BOOLEAN btm_ble_cancel_remote_name(BD_ADDR remote_bda)
+{
+    tBTM_INQUIRY_VAR_ST      *p_inq = &btm_cb.btm_inq_vars;
+    BOOLEAN     status;
+
+    status = GAP_BleCancelReadPeerDevName(remote_bda);
+
+    p_inq->remname_active = FALSE;
+    memset(p_inq->remname_bda, 0, BD_ADDR_LEN);
+    alarm_cancel(p_inq->remote_name_timer);
+
+    return status;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_update_adv_flag
+**
+** Description      This function update the limited discoverable flag in the adv
+**                  data.
+**
+** Parameters:       None.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btm_ble_update_adv_flag(UINT8 flag)
+{
+    tBTM_BLE_LOCAL_ADV_DATA *p_adv_data = &btm_cb.ble_ctr_cb.inq_var.adv_data;
+    UINT8   *p;
+
+    BTM_TRACE_DEBUG ("btm_ble_update_adv_flag new=0x%x", flag);
+
+    if (p_adv_data->p_flags != NULL)
+    {
+        BTM_TRACE_DEBUG ("btm_ble_update_adv_flag old=0x%x",   *p_adv_data->p_flags);
+        *p_adv_data->p_flags = flag;
+    }
+    else /* no FLAGS in ADV data*/
+    {
+        p = (p_adv_data->p_pad == NULL) ? p_adv_data->ad_data : p_adv_data->p_pad;
+        /* need 3 bytes space to stuff in the flags, if not */
+        /* erase all written data, just for flags */
+        if ((BTM_BLE_AD_DATA_LEN - (p - p_adv_data->ad_data)) < 3)
+        {
+            p = p_adv_data->p_pad = p_adv_data->ad_data;
+            memset(p_adv_data->ad_data, 0, BTM_BLE_AD_DATA_LEN);
+        }
+
+        *p++ = 2;
+        *p++ = BTM_BLE_AD_TYPE_FLAG;
+        p_adv_data->p_flags = p;
+        *p++ = flag;
+        p_adv_data->p_pad = p;
+    }
+
+    if (btsnd_hcic_ble_set_adv_data((UINT8)(p_adv_data->p_pad - p_adv_data->ad_data),
+                                    p_adv_data->ad_data))
+        p_adv_data->data_mask |= BTM_BLE_AD_BIT_FLAGS;
+
+}
+
+#if 0
+/*******************************************************************************
+**
+** Function         btm_ble_parse_adv_data
+**
+** Description      This function parse the adv data into a structure.
+**
+** Returns          pointer to entry, or NULL if not found
+**
+*******************************************************************************/
+static void btm_ble_parse_adv_data(tBTM_INQ_INFO *p_info, UINT8 *p_data,
+                                   UINT8 len, tBTM_BLE_INQ_DATA *p_adv_data, UINT8 *p_buf)
+{
+    UINT8   *p_cur = p_data;
+    UINT8   ad_len, ad_type, ad_flag;
+
+    BTM_TRACE_EVENT (" btm_ble_parse_adv_data");
+
+    while (len > 0)
+    {
+        BTM_TRACE_DEBUG("btm_ble_parse_adv_data: len = %d", len);
+        if ((ad_len = *p_cur ++) == 0)
+            break;
+
+        ad_type = *p_cur ++;
+
+        BTM_TRACE_DEBUG("     ad_type = %02x ad_len = %d", ad_type, ad_len);
+
+        switch (ad_type)
+        {
+            case BTM_BLE_AD_TYPE_NAME_SHORT:
+
+            case BTM_BLE_AD_TYPE_NAME_CMPL:
+                p_adv_data->ad_mask |= BTM_BLE_AD_BIT_DEV_NAME;
+                if (p_info)
+                {
+                    p_info->remote_name_type =(ad_type == BTM_BLE_AD_TYPE_NAME_SHORT) ?
+                                              BTM_BLE_NAME_SHORT: BTM_BLE_NAME_CMPL;
+                    memcpy(p_info->remote_name, p_cur, ad_len -1);
+                    p_info->remote_name[ad_len] = 0;
+                    p_adv_data->p_remote_name = p_info->remote_name;
+                    p_info->remote_name_len = p_adv_data->remote_name_len = ad_len - 1;
+                    BTM_TRACE_DEBUG("BTM_BLE_AD_TYPE_NAME name = %s",p_adv_data->p_remote_name);
+                }
+                p_cur += (ad_len -1);
+
+                break;
+
+            case BTM_BLE_AD_TYPE_FLAG:
+                p_adv_data->ad_mask |= BTM_BLE_AD_BIT_FLAGS;
+                ad_flag = *p_cur ++;
+                p_adv_data->flag = (UINT8)(ad_flag & BTM_BLE_ADV_FLAG_MASK) ;
+                BTM_TRACE_DEBUG("BTM_BLE_AD_TYPE_FLAG flag = %s | %s | %s",
+                                 (p_adv_data->flag & BTM_BLE_LIMIT_DISC_FLAG)? "LE_LIMIT_DISC" : "",
+                                 (p_adv_data->flag & BTM_BLE_GEN_DISC_FLAG)? "LE_GENERAL_DISC" : "",
+                                 (p_adv_data->flag & BTM_BLE_BREDR_NOT_SPT)? "LE Only device" : "");
+                break;
+
+            case BTM_BLE_AD_TYPE_TX_PWR:
+                p_adv_data->ad_mask |= BTM_BLE_AD_BIT_TX_PWR;
+                p_adv_data->tx_power_level = (INT8)*p_cur ++;
+                BTM_TRACE_DEBUG("BTM_BLE_AD_TYPE_TX_PWR tx_level = %d", p_adv_data->tx_power_level);
+                break;
+
+            case BTM_BLE_AD_TYPE_MANU:
+
+            case BTM_BLE_AD_TYPE_16SRV_PART:
+            case BTM_BLE_AD_TYPE_16SRV_CMPL:
+                p_adv_data->ad_mask |= BTM_BLE_AD_BIT_SERVICE;
+                /* need allocate memory to store UUID list */
+                p_adv_data->service.num_service = (ad_len - 1)/2;
+                BTM_TRACE_DEBUG("service UUID list, num = %d", p_adv_data->service.num_service);
+                p_cur += (ad_len - 1);
+                break;
+
+            case BTM_BLE_AD_TYPE_SOL_SRV_UUID:
+                p_adv_data->ad_mask |= BTM_BLE_AD_BIT_SERVICE_SOL;
+                /* need allocate memory to store UUID list */
+                p_adv_data->service.num_service = (ad_len - 1)/2;
+                BTM_TRACE_DEBUG("service UUID list, num = %d", p_adv_data->service.num_service);
+                p_cur += (ad_len - 1);
+                break;
+
+            case BTM_BLE_AD_TYPE_128SOL_SRV_UUID:
+                p_adv_data->ad_mask |= BTM_BLE_AD_BIT_SERVICE_128SOL;
+                /* need allocate memory to store UUID list */
+                p_adv_data->service.num_service = (ad_len - 1)/16;
+                BTM_TRACE_DEBUG("service UUID list, num = %d", p_adv_data->service.num_service);
+                p_cur += (ad_len - 1);
+                break;
+
+            case BTM_BLE_AD_TYPE_APPEARANCE:
+            case BTM_BLE_AD_TYPE_PUBLIC_TARGET:
+            case BTM_BLE_AD_TYPE_RANDOM_TARGET:
+            default:
+                break;
+        }
+        len -= (ad_len + 1);
+    }
+}
+#endif
+
+/*******************************************************************************
+**
+** Function         btm_ble_cache_adv_data
+**
+** Description      Update advertising cache data.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_ble_cache_adv_data(tBTM_INQ_RESULTS *p_cur, UINT8 data_len, UINT8 *p, UINT8 evt_type)
+{
+    tBTM_BLE_INQ_CB     *p_le_inq_cb = &btm_cb.ble_ctr_cb.inq_var;
+    UINT8 *p_cache;
+    UINT8 length;
+    UNUSED(p_cur);
+
+    /* cache adv report/scan response data */
+    if (evt_type != BTM_BLE_SCAN_RSP_EVT)
+    {
+        p_le_inq_cb->adv_len = 0;
+        memset(p_le_inq_cb->adv_data_cache, 0, BTM_BLE_CACHE_ADV_DATA_MAX);
+#ifdef BLUETOOTH_RTK
+        memcpy((p_le_inq_cb->addr), (p_cur->remote_bd_addr), sizeof(BD_ADDR));
+#endif
+    }
+
+    if (data_len > 0)
+    {
+        p_cache = &p_le_inq_cb->adv_data_cache[p_le_inq_cb->adv_len];
+        STREAM_TO_UINT8(length, p);
+        while ( length && ((p_le_inq_cb->adv_len + length + 1) <= BTM_BLE_CACHE_ADV_DATA_MAX))
+        {
+            /* copy from the length byte & data into cache */
+            memcpy(p_cache, p-1, length+1);
+            /* advance the cache pointer past data */
+            p_cache += length+1;
+            /* increment cache length */
+            p_le_inq_cb->adv_len += length+1;
+            /* skip the length of data */
+            p += length;
+            STREAM_TO_UINT8(length, p);
+        }
+    }
+
+    /* parse service UUID from adv packet and save it in inq db eir_uuid */
+    /* TODO */
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_is_discoverable
+**
+** Description      check ADV flag to make sure device is discoverable and match
+**                  the search condition
+**
+** Parameters
+**
+** Returns          void
+**
+*******************************************************************************/
+UINT8 btm_ble_is_discoverable(BD_ADDR bda, UINT8 evt_type, UINT8 *p)
+{
+    UINT8               *p_flag, flag = 0, rt = 0;
+    UINT8                data_len;
+    tBTM_INQ_PARMS      *p_cond = &btm_cb.btm_inq_vars.inqparms;
+    tBTM_BLE_INQ_CB     *p_le_inq_cb = &btm_cb.ble_ctr_cb.inq_var;
+
+    UNUSED(p);
+
+    /* for observer, always "discoverable */
+    if (BTM_BLE_IS_OBS_ACTIVE(btm_cb.ble_ctr_cb.scan_activity))
+        rt |= BTM_BLE_OBS_RESULT;
+
+    if (BTM_BLE_IS_SEL_CONN_ACTIVE(btm_cb.ble_ctr_cb.scan_activity) &&
+        (evt_type == BTM_BLE_CONNECT_EVT || evt_type == BTM_BLE_CONNECT_DIR_EVT))
+        rt |= BTM_BLE_SEL_CONN_RESULT;
+
+    /* does not match filter condition */
+    if (p_cond->filter_cond_type == BTM_FILTER_COND_BD_ADDR &&
+        memcmp(bda, p_cond->filter_cond.bdaddr_cond, BD_ADDR_LEN) != 0)
+    {
+        BTM_TRACE_DEBUG("BD ADDR does not meet filter condition");
+        return rt;
+    }
+
+    if (p_le_inq_cb->adv_len != 0)
+    {
+        if ((p_flag = BTM_CheckAdvData(p_le_inq_cb->adv_data_cache,
+            BTM_BLE_AD_TYPE_FLAG, &data_len)) != NULL)
+        {
+            flag = * p_flag;
+
+            if ((btm_cb.btm_inq_vars.inq_active & BTM_BLE_GENERAL_INQUIRY) &&
+                (flag & (BTM_BLE_LIMIT_DISC_FLAG|BTM_BLE_GEN_DISC_FLAG)) != 0)
+            {
+                BTM_TRACE_DEBUG("Find Generable Discoverable device");
+                rt |= BTM_BLE_INQ_RESULT;
+            }
+
+            else if (btm_cb.btm_inq_vars.inq_active & BTM_BLE_LIMITED_INQUIRY &&
+                     (flag & BTM_BLE_LIMIT_DISC_FLAG) != 0)
+            {
+                BTM_TRACE_DEBUG("Find limited discoverable device");
+                rt |= BTM_BLE_INQ_RESULT;
+            }
+        }
+    }
+    return rt;
+}
+
+static void btm_ble_appearance_to_cod(UINT16 appearance, UINT8 *dev_class)
+{
+    dev_class[0] = 0;
+
+    switch (appearance)
+    {
+        case BTM_BLE_APPEARANCE_GENERIC_PHONE:
+            dev_class[1] = BTM_COD_MAJOR_PHONE;
+            dev_class[2] = BTM_COD_MINOR_UNCLASSIFIED;
+            break;
+        case BTM_BLE_APPEARANCE_GENERIC_COMPUTER:
+            dev_class[1] = BTM_COD_MAJOR_COMPUTER;
+            dev_class[2] = BTM_COD_MINOR_UNCLASSIFIED;
+            break;
+        case BTM_BLE_APPEARANCE_GENERIC_REMOTE:
+            dev_class[1] = BTM_COD_MAJOR_PERIPHERAL;
+            dev_class[2] = BTM_COD_MINOR_REMOTE_CONTROL;
+            break;
+        case BTM_BLE_APPEARANCE_GENERIC_THERMOMETER:
+        case BTM_BLE_APPEARANCE_THERMOMETER_EAR:
+            dev_class[1] = BTM_COD_MAJOR_HEALTH;
+            dev_class[2] = BTM_COD_MINOR_THERMOMETER;
+            break;
+        case BTM_BLE_APPEARANCE_GENERIC_HEART_RATE:
+        case BTM_BLE_APPEARANCE_HEART_RATE_BELT:
+            dev_class[1] = BTM_COD_MAJOR_HEALTH;
+            dev_class[2] = BTM_COD_MINOR_HEART_PULSE_MONITOR;
+            break;
+        case BTM_BLE_APPEARANCE_GENERIC_BLOOD_PRESSURE:
+        case BTM_BLE_APPEARANCE_BLOOD_PRESSURE_ARM:
+        case BTM_BLE_APPEARANCE_BLOOD_PRESSURE_WRIST:
+            dev_class[1] = BTM_COD_MAJOR_HEALTH;
+            dev_class[2] = BTM_COD_MINOR_BLOOD_MONITOR;
+            break;
+        case BTM_BLE_APPEARANCE_GENERIC_PULSE_OXIMETER:
+        case BTM_BLE_APPEARANCE_PULSE_OXIMETER_FINGERTIP:
+        case BTM_BLE_APPEARANCE_PULSE_OXIMETER_WRIST:
+            dev_class[1] = BTM_COD_MAJOR_HEALTH;
+            dev_class[2] = BTM_COD_MINOR_PULSE_OXIMETER;
+            break;
+        case BTM_BLE_APPEARANCE_GENERIC_GLUCOSE:
+            dev_class[1] = BTM_COD_MAJOR_HEALTH;
+            dev_class[2] = BTM_COD_MINOR_GLUCOSE_METER;
+            break;
+        case BTM_BLE_APPEARANCE_GENERIC_WEIGHT:
+            dev_class[1] = BTM_COD_MAJOR_HEALTH;
+            dev_class[2] = BTM_COD_MINOR_WEIGHING_SCALE;
+            break;
+        case BTM_BLE_APPEARANCE_GENERIC_WALKING:
+        case BTM_BLE_APPEARANCE_WALKING_IN_SHOE:
+        case BTM_BLE_APPEARANCE_WALKING_ON_SHOE:
+        case BTM_BLE_APPEARANCE_WALKING_ON_HIP:
+            dev_class[1] = BTM_COD_MAJOR_HEALTH;
+            dev_class[2] = BTM_COD_MINOR_STEP_COUNTER;
+            break;
+        case BTM_BLE_APPEARANCE_GENERIC_WATCH:
+        case BTM_BLE_APPEARANCE_SPORTS_WATCH:
+            dev_class[1] = BTM_COD_MAJOR_WEARABLE;
+            dev_class[2] = BTM_COD_MINOR_WRIST_WATCH;
+            break;
+        case BTM_BLE_APPEARANCE_GENERIC_EYEGLASSES:
+            dev_class[1] = BTM_COD_MAJOR_WEARABLE;
+            dev_class[2] = BTM_COD_MINOR_GLASSES;
+            break;
+        case BTM_BLE_APPEARANCE_GENERIC_DISPLAY:
+            dev_class[1] = BTM_COD_MAJOR_IMAGING;
+            dev_class[2] = BTM_COD_MINOR_DISPLAY;
+            break;
+        case BTM_BLE_APPEARANCE_GENERIC_MEDIA_PLAYER:
+            dev_class[1] = BTM_COD_MAJOR_AUDIO;
+            dev_class[2] = BTM_COD_MINOR_UNCLASSIFIED;
+            break;
+        case BTM_BLE_APPEARANCE_GENERIC_BARCODE_SCANNER:
+        case BTM_BLE_APPEARANCE_HID_BARCODE_SCANNER:
+        case BTM_BLE_APPEARANCE_GENERIC_HID:
+            dev_class[1] = BTM_COD_MAJOR_PERIPHERAL;
+            dev_class[2] = BTM_COD_MINOR_UNCLASSIFIED;
+            break;
+        case BTM_BLE_APPEARANCE_HID_KEYBOARD:
+            dev_class[1] = BTM_COD_MAJOR_PERIPHERAL;
+            dev_class[2] = BTM_COD_MINOR_KEYBOARD;
+            break;
+        case BTM_BLE_APPEARANCE_HID_MOUSE:
+            dev_class[1] = BTM_COD_MAJOR_PERIPHERAL;
+            dev_class[2] = BTM_COD_MINOR_POINTING;
+            break;
+        case BTM_BLE_APPEARANCE_HID_JOYSTICK:
+            dev_class[1] = BTM_COD_MAJOR_PERIPHERAL;
+            dev_class[2] = BTM_COD_MINOR_JOYSTICK;
+            break;
+        case BTM_BLE_APPEARANCE_HID_GAMEPAD:
+            dev_class[1] = BTM_COD_MAJOR_PERIPHERAL;
+            dev_class[2] = BTM_COD_MINOR_GAMEPAD;
+            break;
+        case BTM_BLE_APPEARANCE_HID_DIGITIZER_TABLET:
+            dev_class[1] = BTM_COD_MAJOR_PERIPHERAL;
+            dev_class[2] = BTM_COD_MINOR_DIGITIZING_TABLET;
+            break;
+        case BTM_BLE_APPEARANCE_HID_CARD_READER:
+            dev_class[1] = BTM_COD_MAJOR_PERIPHERAL;
+            dev_class[2] = BTM_COD_MINOR_CARD_READER;
+            break;
+        case BTM_BLE_APPEARANCE_HID_DIGITAL_PEN:
+            dev_class[1] = BTM_COD_MAJOR_PERIPHERAL;
+            dev_class[2] = BTM_COD_MINOR_DIGITAL_PAN;
+            break;
+        case BTM_BLE_APPEARANCE_UKNOWN:
+        case BTM_BLE_APPEARANCE_GENERIC_CLOCK:
+        case BTM_BLE_APPEARANCE_GENERIC_TAG:
+        case BTM_BLE_APPEARANCE_GENERIC_KEYRING:
+        case BTM_BLE_APPEARANCE_GENERIC_CYCLING:
+        case BTM_BLE_APPEARANCE_CYCLING_COMPUTER:
+        case BTM_BLE_APPEARANCE_CYCLING_SPEED:
+        case BTM_BLE_APPEARANCE_CYCLING_CADENCE:
+        case BTM_BLE_APPEARANCE_CYCLING_POWER:
+        case BTM_BLE_APPEARANCE_CYCLING_SPEED_CADENCE:
+        case BTM_BLE_APPEARANCE_GENERIC_OUTDOOR_SPORTS:
+        case BTM_BLE_APPEARANCE_OUTDOOR_SPORTS_LOCATION:
+        case BTM_BLE_APPEARANCE_OUTDOOR_SPORTS_LOCATION_AND_NAV:
+        case BTM_BLE_APPEARANCE_OUTDOOR_SPORTS_LOCATION_POD:
+        case BTM_BLE_APPEARANCE_OUTDOOR_SPORTS_LOCATION_POD_AND_NAV:
+        default:
+            dev_class[1] = BTM_COD_MAJOR_UNCLASSIFIED;
+            dev_class[2] = BTM_COD_MINOR_UNCLASSIFIED;
+    };
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_update_inq_result
+**
+** Description      Update adv packet information into inquiry result.
+**
+** Parameters
+**
+** Returns          void
+**
+*******************************************************************************/
+BOOLEAN btm_ble_update_inq_result(tINQ_DB_ENT *p_i, UINT8 addr_type, UINT8 evt_type, UINT8 *p)
+{
+    BOOLEAN             to_report = TRUE;
+    tBTM_INQ_RESULTS     *p_cur = &p_i->inq_info.results;
+    UINT8               len;
+    UINT8               *p_flag;
+    tBTM_INQUIRY_VAR_ST  *p_inq = &btm_cb.btm_inq_vars;
+    UINT8                data_len, rssi;
+    tBTM_BLE_INQ_CB     *p_le_inq_cb = &btm_cb.ble_ctr_cb.inq_var;
+    UINT8 *p1;
+    UINT8               *p_uuid16;
+
+    STREAM_TO_UINT8    (data_len, p);
+
+    if (data_len > BTM_BLE_ADV_DATA_LEN_MAX)
+    {
+        BTM_TRACE_WARNING("EIR data too long %d. discard", data_len);
+        return FALSE;
+    }
+#ifdef BLUETOOTH_RTK
+    if(memcmp((p_le_inq_cb->addr), (p_cur->remote_bd_addr), sizeof(BD_ADDR)) &&(evt_type == BTM_BLE_SCAN_RSP_EVT))
+    {
+        BTM_TRACE_DEBUG("btm_ble_update_inq_result: ignore scan Response[%02x:%02x:%02x:%02x:%02x:%02x]",p_cur->remote_bd_addr[0],p_cur->remote_bd_addr[1],p_cur->remote_bd_addr[2],p_cur->remote_bd_addr[3],p_cur->remote_bd_addr[4],p_cur->remote_bd_addr[5]);
+        return FALSE;
+    }
+#endif
+    btm_ble_cache_adv_data(p_cur, data_len, p, evt_type);
+
+    p1 = (p + data_len);
+    STREAM_TO_UINT8 (rssi, p1);
+
+    /* Save the info */
+    p_cur->inq_result_type = BTM_INQ_RESULT_BLE;
+    p_cur->ble_addr_type    = addr_type;
+    p_cur->rssi = rssi;
+
+    /* active scan, always wait until get scan_rsp to report the result */
+    if ((btm_cb.ble_ctr_cb.inq_var.scan_type == BTM_BLE_SCAN_MODE_ACTI &&
+         (evt_type == BTM_BLE_CONNECT_EVT || evt_type == BTM_BLE_DISCOVER_EVT)))
+    {
+        BTM_TRACE_DEBUG("btm_ble_update_inq_result scan_rsp=false, to_report=false,\
+                              scan_type_active=%d", btm_cb.ble_ctr_cb.inq_var.scan_type);
+        p_i->scan_rsp = FALSE;
+        to_report = FALSE;
+    }
+    else
+        p_i->scan_rsp = TRUE;
+
+    if (p_i->inq_count != p_inq->inq_counter)
+        p_cur->device_type = BT_DEVICE_TYPE_BLE;
+    else
+        p_cur->device_type |= BT_DEVICE_TYPE_BLE;
+
+    if (evt_type != BTM_BLE_SCAN_RSP_EVT)
+        p_cur->ble_evt_type     = evt_type;
+
+    p_i->inq_count = p_inq->inq_counter;   /* Mark entry for current inquiry */
+
+    if (p_le_inq_cb->adv_len != 0)
+    {
+        if ((p_flag = BTM_CheckAdvData(p_le_inq_cb->adv_data_cache, BTM_BLE_AD_TYPE_FLAG, &len)) != NULL)
+            p_cur->flag = * p_flag;
+    }
+
+    if (p_le_inq_cb->adv_len != 0)
+    {
+        /* Check to see the BLE device has the Appearance UUID in the advertising data.  If it does
+         * then try to convert the appearance value to a class of device value Bluedroid can use.
+         * Otherwise fall back to trying to infer if it is a HID device based on the service class.
+         */
+        p_uuid16 = BTM_CheckAdvData(p_le_inq_cb->adv_data_cache, BTM_BLE_AD_TYPE_APPEARANCE, &len);
+        if (p_uuid16 && len == 2)
+        {
+            btm_ble_appearance_to_cod((UINT16)p_uuid16[0] | (p_uuid16[1] << 8), p_cur->dev_class);
+        }
+        else
+        {
+            if ((p_uuid16 = BTM_CheckAdvData(p_le_inq_cb->adv_data_cache,
+                                             BTM_BLE_AD_TYPE_16SRV_CMPL, &len)) != NULL)
+            {
+                UINT8 i;
+                for (i = 0; i + 2 <= len; i = i + 2)
+                {
+                    /* if this BLE device support HID over LE, set HID Major in class of device */
+                    if ((p_uuid16[i] | (p_uuid16[i+1] << 8)) == UUID_SERVCLASS_LE_HID)
+                    {
+                        p_cur->dev_class[0] = 0;
+                        p_cur->dev_class[1] = BTM_COD_MAJOR_PERIPHERAL;
+                        p_cur->dev_class[2] = 0;
+                        break;
+                    }
+                }
+            }
+        }
+    }
+
+    /* if BR/EDR not supported is not set, assume is a DUMO device */
+    if ((p_cur->flag & BTM_BLE_BREDR_NOT_SPT) == 0 &&
+         evt_type != BTM_BLE_CONNECT_DIR_EVT)
+    {
+        if (p_cur->ble_addr_type != BLE_ADDR_RANDOM)
+        {
+            BTM_TRACE_DEBUG("BR/EDR NOT support bit not set, treat as DUMO");
+            p_cur->device_type |= BT_DEVICE_TYPE_DUMO;
+        } else {
+            BTM_TRACE_DEBUG("Random address, treating device as LE only");
+        }
+    }
+    else
+    {
+        BTM_TRACE_DEBUG("BR/EDR NOT SUPPORT bit set, LE only device");
+    }
+
+    return to_report;
+
+}
+
+/*******************************************************************************
+**
+** Function         btm_clear_all_pending_le_entry
+**
+** Description      This function is called to clear all LE pending entry in
+**                  inquiry database.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_clear_all_pending_le_entry(void)
+{
+    UINT16       xx;
+    tINQ_DB_ENT  *p_ent = btm_cb.btm_inq_vars.inq_db;
+
+    for (xx = 0; xx < BTM_INQ_DB_SIZE; xx++, p_ent++)
+    {
+        /* mark all pending LE entry as unused if an LE only device has scan response outstanding */
+        if ((p_ent->in_use) &&
+            (p_ent->inq_info.results.device_type == BT_DEVICE_TYPE_BLE) &&
+             !p_ent->scan_rsp)
+            p_ent->in_use = FALSE;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btm_send_sel_conn_callback
+**
+** Description      send selection connection request callback.
+**
+** Parameters
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_send_sel_conn_callback(BD_ADDR remote_bda, UINT8 evt_type, UINT8 *p_data, UINT8 addr_type)
+{
+    UINT8   data_len, len;
+    UINT8   *p_dev_name, remname[31] = {0};
+    UNUSED(addr_type);
+
+    if (btm_cb.ble_ctr_cb.p_select_cback == NULL ||
+        /* non-connectable device */
+        (evt_type != BTM_BLE_EVT_CONN_ADV && evt_type != BTM_BLE_EVT_CONN_DIR_ADV))
+        return;
+
+    STREAM_TO_UINT8    (data_len, p_data);
+
+    /* get the device name if exist in ADV data */
+    if (data_len != 0)
+    {
+        p_dev_name = BTM_CheckAdvData(p_data, BTM_BLE_AD_TYPE_NAME_CMPL, &len);
+
+        if (p_dev_name == NULL)
+            p_dev_name = BTM_CheckAdvData(p_data, BTM_BLE_AD_TYPE_NAME_SHORT, &len);
+
+        if (p_dev_name)
+            memcpy(remname, p_dev_name, len);
+    }
+    /* allow connection */
+    if ((* btm_cb.ble_ctr_cb.p_select_cback)(remote_bda, remname))
+    {
+        /* terminate selective connection, initiate connection */
+        btm_ble_initiate_select_conn(remote_bda);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_process_adv_pkt
+**
+** Description      This function is called when adv packet report events are
+**                  received from the device. It updates the inquiry database.
+**                  If the inquiry database is full, the oldest entry is discarded.
+**
+** Parameters
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_ble_process_adv_pkt (UINT8 *p_data)
+{
+    BD_ADDR             bda;
+    UINT8               evt_type = 0, *p = p_data;
+    UINT8               addr_type = 0;
+    UINT8               num_reports;
+    UINT8               data_len;
+#if (defined BLE_PRIVACY_SPT && BLE_PRIVACY_SPT == TRUE)
+    BOOLEAN             match = FALSE;
+#endif
+
+    /* Only process the results if the inquiry is still active */
+    if (!BTM_BLE_IS_SCAN_ACTIVE(btm_cb.ble_ctr_cb.scan_activity))
+        return;
+
+    /* Extract the number of reports in this event. */
+    STREAM_TO_UINT8(num_reports, p);
+
+    while (num_reports--)
+    {
+        /* Extract inquiry results */
+        STREAM_TO_UINT8    (evt_type, p);
+        STREAM_TO_UINT8    (addr_type, p);
+        STREAM_TO_BDADDR   (bda, p);
+
+#if (defined BLE_PRIVACY_SPT && BLE_PRIVACY_SPT == TRUE)
+        /* map address to security record */
+        match = btm_identity_addr_to_random_pseudo(bda, &addr_type, FALSE);
+
+        BTM_TRACE_DEBUG("btm_ble_process_adv_pkt:bda= %0x:%0x:%0x:%0x:%0x:%0x",
+                                     bda[0],bda[1],bda[2],bda[3],bda[4],bda[5]);
+        /* always do RRA resolution on host */
+        if (!match && BTM_BLE_IS_RESOLVE_BDA(bda))
+        {
+            btm_ble_resolve_random_addr(bda, btm_ble_resolve_random_addr_on_adv, p_data);
+        }
+        else
+#endif
+            btm_ble_process_adv_pkt_cont(bda, addr_type, evt_type, p);
+
+        STREAM_TO_UINT8(data_len, p);
+
+        /* Advance to the next event data_len + rssi byte */
+        p += data_len + 1;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_process_adv_pkt_cont
+**
+** Description      This function is called after random address resolution is
+**                  done, and proceed to process adv packet.
+**
+** Parameters
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btm_ble_process_adv_pkt_cont(BD_ADDR bda, UINT8 addr_type, UINT8 evt_type, UINT8 *p)
+{
+    tINQ_DB_ENT          *p_i;
+    tBTM_INQUIRY_VAR_ST  *p_inq = &btm_cb.btm_inq_vars;
+    tBTM_INQ_RESULTS_CB  *p_inq_results_cb = p_inq->p_inq_results_cb;
+    tBTM_INQ_RESULTS_CB  *p_obs_results_cb = btm_cb.ble_ctr_cb.p_obs_results_cb;
+    tBTM_BLE_INQ_CB      *p_le_inq_cb = &btm_cb.ble_ctr_cb.inq_var;
+    BOOLEAN     update = TRUE;
+    UINT8       result = 0;
+
+    p_i = btm_inq_db_find (bda);
+
+#ifdef BLUETOOTH_RTK
+    if(evt_type == BTM_BLE_CONNECT_DIR_EVT)
+        return;
+#endif
+    /* Check if this address has already been processed for this inquiry */
+    if (btm_inq_find_bdaddr(bda))
+    {
+        /* never been report as an LE device */
+        if (p_i &&
+            (!(p_i->inq_info.results.device_type & BT_DEVICE_TYPE_BLE) ||
+              /* scan repsonse to be updated */
+              (!p_i->scan_rsp)))
+        {
+            update = TRUE;
+        }
+        else if (BTM_BLE_IS_OBS_ACTIVE(btm_cb.ble_ctr_cb.scan_activity))
+        {
+            update = FALSE;
+        }
+        else
+        {
+            /* if yes, skip it */
+#ifdef BLUETOOTH_RTK
+            BTM_TRACE_DEBUG("LE device already in database");
+            update = TRUE;
+#else
+            return; /* assumption: one result per event */
+#endif
+        }
+    }
+    /* If existing entry, use that, else get  a new one (possibly reusing the oldest) */
+    if (p_i == NULL)
+    {
+        if ((p_i = btm_inq_db_new (bda)) != NULL)
+        {
+            p_inq->inq_cmpl_info.num_resp++;
+        }
+        else
+            return;
+    }
+    else if (p_i->inq_count != p_inq->inq_counter) /* first time seen in this inquiry */
+    {
+        p_inq->inq_cmpl_info.num_resp++;
+    }
+    /* update the LE device information in inquiry database */
+    if (!btm_ble_update_inq_result(p_i, addr_type, evt_type, p))
+        return;
+
+    if ((result = btm_ble_is_discoverable(bda, evt_type, p)) == 0)
+    {
+      LOG_WARN(LOG_TAG, "%s device is no longer discoverable so discarding advertising packet pkt",
+          __func__);
+#ifdef BLUETOOTH_RTK
+      btm_clr_inq_db(bda);
+#endif
+        return;
+    }
+    if (!update)
+        result &= ~BTM_BLE_INQ_RESULT;
+    /* If the number of responses found and limited, issue a cancel inquiry */
+    if (p_inq->inqparms.max_resps &&
+        p_inq->inq_cmpl_info.num_resp == p_inq->inqparms.max_resps)
+    {
+        /* new device */
+        if (p_i == NULL ||
+            /* assume a DUMO device, BR/EDR inquiry is always active */
+            (p_i &&
+            (p_i->inq_info.results.device_type & BT_DEVICE_TYPE_BLE) == BT_DEVICE_TYPE_BLE &&
+             p_i->scan_rsp))
+        {
+            BTM_TRACE_WARNING("INQ RES: Extra Response Received...cancelling inquiry..");
+
+            /* if is non-periodic inquiry active, cancel now */
+            if ((p_inq->inq_active & BTM_BR_INQ_ACTIVE_MASK) != 0 &&
+                (p_inq->inq_active & BTM_PERIODIC_INQUIRY_ACTIVE) == 0)
+                btsnd_hcic_inq_cancel();
+
+            btm_ble_stop_inquiry();
+
+            btm_acl_update_busy_level (BTM_BLI_INQ_DONE_EVT);
+        }
+    }
+    /* background connection in selective connection mode */
+    if (btm_cb.ble_ctr_cb.bg_conn_type == BTM_BLE_CONN_SELECTIVE)
+    {
+        if (result & BTM_BLE_SEL_CONN_RESULT)
+            btm_send_sel_conn_callback(bda, evt_type, p, addr_type);
+        else
+        {
+            BTM_TRACE_DEBUG("None LE device, can not initiate selective connection");
+        }
+    }
+    else
+    {
+        if (p_inq_results_cb && (result & BTM_BLE_INQ_RESULT))
+        {
+            (p_inq_results_cb)((tBTM_INQ_RESULTS *) &p_i->inq_info.results, p_le_inq_cb->adv_data_cache);
+        }
+        if (p_obs_results_cb && (result & BTM_BLE_OBS_RESULT))
+        {
+            (p_obs_results_cb)((tBTM_INQ_RESULTS *) &p_i->inq_info.results, p_le_inq_cb->adv_data_cache);
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_start_scan
+**
+** Description      Start the BLE scan.
+**
+** Returns          void
+**
+*******************************************************************************/
+tBTM_STATUS btm_ble_start_scan(void)
+{
+    tBTM_BLE_INQ_CB *p_inq = &btm_cb.ble_ctr_cb.inq_var;
+    tBTM_STATUS status = BTM_CMD_STARTED;
+
+    /* start scan, disable duplicate filtering */
+    if (!btsnd_hcic_ble_set_scan_enable (BTM_BLE_SCAN_ENABLE, p_inq->scan_duplicate_filter))
+    {
+        status = BTM_NO_RESOURCES;
+    }
+    else
+    {
+        if (p_inq->scan_type == BTM_BLE_SCAN_MODE_ACTI)
+            btm_ble_set_topology_mask(BTM_BLE_STATE_ACTIVE_SCAN_BIT);
+        else
+            btm_ble_set_topology_mask(BTM_BLE_STATE_PASSIVE_SCAN_BIT);
+    }
+    return status;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_stop_scan
+**
+** Description      Stop the BLE scan.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_ble_stop_scan(void)
+{
+    BTM_TRACE_EVENT ("btm_ble_stop_scan ");
+
+    /* Clear the inquiry callback if set */
+    btm_cb.ble_ctr_cb.inq_var.scan_type = BTM_BLE_SCAN_MODE_NONE;
+
+    /* stop discovery now */
+    btsnd_hcic_ble_set_scan_enable (BTM_BLE_SCAN_DISABLE, BTM_BLE_DUPLICATE_ENABLE);
+
+    btm_update_scanner_filter_policy(SP_ADV_ALL);
+
+    btm_cb.ble_ctr_cb.wl_state &= ~BTM_BLE_WL_SCAN;
+}
+/*******************************************************************************
+**
+** Function         btm_ble_stop_inquiry
+**
+** Description      Stop the BLE Inquiry.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_ble_stop_inquiry(void)
+{
+    tBTM_INQUIRY_VAR_ST *p_inq = &btm_cb.btm_inq_vars;
+    tBTM_BLE_CB *p_ble_cb = &btm_cb.ble_ctr_cb;
+
+    alarm_cancel(p_ble_cb->inq_var.inquiry_timer);
+
+    p_ble_cb->scan_activity &=  ~BTM_BLE_INQUIRY_MASK;
+
+    /* If no more scan activity, stop LE scan now */
+    if (!BTM_BLE_IS_SCAN_ACTIVE(p_ble_cb->scan_activity))
+        btm_ble_stop_scan();
+    else if((p_ble_cb->inq_var.scan_interval != BTM_BLE_LOW_LATENCY_SCAN_INT) ||
+            (p_ble_cb->inq_var.scan_window != BTM_BLE_LOW_LATENCY_SCAN_WIN))
+    {
+        BTM_TRACE_DEBUG("%s: setting default params for ongoing observe", __FUNCTION__);
+        btm_ble_stop_scan();
+        btm_ble_start_scan();
+    }
+
+    /* If we have a callback registered for inquiry complete, call it */
+    BTM_TRACE_DEBUG ("BTM Inq Compl Callback: status 0x%02x, num results %d",
+                      p_inq->inq_cmpl_info.status, p_inq->inq_cmpl_info.num_resp);
+
+    btm_process_inq_complete(HCI_SUCCESS, (UINT8)(p_inq->inqparms.mode & BTM_BLE_INQUIRY_MASK));
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_stop_observe
+**
+** Description      Stop the BLE Observe.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btm_ble_stop_observe(void)
+{
+    tBTM_BLE_CB *p_ble_cb = & btm_cb.ble_ctr_cb;
+    tBTM_CMPL_CB *p_obs_cb = p_ble_cb->p_obs_cmpl_cb;
+
+    alarm_cancel(p_ble_cb->observer_timer);
+
+    p_ble_cb->scan_activity &= ~BTM_LE_OBSERVE_ACTIVE;
+
+    p_ble_cb->p_obs_results_cb = NULL;
+    p_ble_cb->p_obs_cmpl_cb = NULL;
+
+    if (!BTM_BLE_IS_SCAN_ACTIVE(p_ble_cb->scan_activity))
+        btm_ble_stop_scan();
+
+    if (p_obs_cb)
+        (p_obs_cb)((tBTM_INQUIRY_CMPL *) &btm_cb.btm_inq_vars.inq_cmpl_info);
+}
+/*******************************************************************************
+**
+** Function         btm_ble_adv_states_operation
+**
+** Description      Set or clear adv states in topology mask
+**
+** Returns          operation status. TRUE if sucessful, FALSE otherwise.
+**
+*******************************************************************************/
+typedef BOOLEAN (BTM_TOPOLOGY_FUNC_PTR)(tBTM_BLE_STATE_MASK);
+static BOOLEAN btm_ble_adv_states_operation(BTM_TOPOLOGY_FUNC_PTR *p_handler, UINT8 adv_evt)
+{
+    BOOLEAN rt = FALSE;
+
+    switch (adv_evt)
+    {
+    case BTM_BLE_CONNECT_EVT:
+        rt  = (*p_handler)(BTM_BLE_STATE_CONN_ADV_BIT);
+        break;
+
+    case  BTM_BLE_NON_CONNECT_EVT:
+        rt  = (*p_handler) (BTM_BLE_STATE_NON_CONN_ADV_BIT);
+        break;
+    case BTM_BLE_CONNECT_DIR_EVT:
+        rt  =  (*p_handler) (BTM_BLE_STATE_HI_DUTY_DIR_ADV_BIT);
+        break;
+
+    case BTM_BLE_DISCOVER_EVT:
+        rt  =  (*p_handler) (BTM_BLE_STATE_SCAN_ADV_BIT);
+        break;
+
+    case BTM_BLE_CONNECT_LO_DUTY_DIR_EVT:
+        rt = (*p_handler) (BTM_BLE_STATE_LO_DUTY_DIR_ADV_BIT);
+        break;
+
+    default:
+        BTM_TRACE_ERROR("unknown adv event : %d", adv_evt);
+        break;
+    }
+
+    return rt;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_start_adv
+**
+** Description      start the BLE advertising.
+**
+** Returns          void
+**
+*******************************************************************************/
+tBTM_STATUS btm_ble_start_adv(void)
+{
+    tBTM_BLE_INQ_CB *p_cb = &btm_cb.ble_ctr_cb.inq_var;
+    tBTM_STATUS     rt = BTM_NO_RESOURCES;
+
+    if (!btm_ble_adv_states_operation (btm_ble_topology_check, p_cb->evt_type))
+        return BTM_WRONG_MODE;
+
+#if (defined BLE_PRIVACY_SPT && BLE_PRIVACY_SPT == TRUE)
+    /* To relax resolving list,  always have resolving list enabled, unless directed adv */
+    if (p_cb->evt_type != BTM_BLE_CONNECT_LO_DUTY_DIR_EVT &&
+        p_cb->evt_type != BTM_BLE_CONNECT_DIR_EVT)
+        /* enable resolving list is desired */
+        btm_ble_enable_resolving_list_for_platform(BTM_BLE_RL_ADV);
+#endif
+    if (p_cb->afp != AP_SCAN_CONN_ALL)
+    {
+        btm_execute_wl_dev_operation();
+        btm_cb.ble_ctr_cb.wl_state |= BTM_BLE_WL_ADV;
+    }
+
+    if (btsnd_hcic_ble_set_adv_enable (BTM_BLE_ADV_ENABLE))
+    {
+         p_cb->adv_mode = BTM_BLE_ADV_ENABLE;
+         btm_ble_adv_states_operation(btm_ble_set_topology_mask, p_cb->evt_type);
+         rt = BTM_SUCCESS;
+    }
+    else
+    {
+        p_cb->adv_mode = BTM_BLE_ADV_DISABLE;
+        btm_cb.ble_ctr_cb.wl_state &= ~BTM_BLE_WL_ADV;
+    }
+    return rt;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_stop_adv
+**
+** Description      Stop the BLE advertising.
+**
+** Returns          void
+**
+*******************************************************************************/
+tBTM_STATUS btm_ble_stop_adv(void)
+{
+    tBTM_BLE_INQ_CB *p_cb = &btm_cb.ble_ctr_cb.inq_var;
+    tBTM_STATUS rt = BTM_SUCCESS;
+
+    if (p_cb->adv_mode == BTM_BLE_ADV_ENABLE)
+    {
+        if (btsnd_hcic_ble_set_adv_enable (BTM_BLE_ADV_DISABLE))
+        {
+            p_cb->fast_adv_on = FALSE;
+            p_cb->adv_mode = BTM_BLE_ADV_DISABLE;
+            btm_cb.ble_ctr_cb.wl_state &= ~BTM_BLE_WL_ADV;
+
+            /* clear all adv states */
+            btm_ble_clear_topology_mask (BTM_BLE_STATE_ALL_ADV_MASK);
+        }
+        else
+            rt = BTM_NO_RESOURCES;
+    }
+    return rt;
+}
+
+static void btm_ble_fast_adv_timer_timeout(UNUSED_ATTR void *data)
+{
+    /* fast adv is completed, fall back to slow adv interval */
+    btm_ble_start_slow_adv();
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_start_slow_adv
+**
+** Description      Restart adv with slow adv interval
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btm_ble_start_slow_adv(void)
+{
+    tBTM_BLE_INQ_CB *p_cb = &btm_cb.ble_ctr_cb.inq_var;
+
+    if (p_cb->adv_mode == BTM_BLE_ADV_ENABLE)
+    {
+        tBTM_LE_RANDOM_CB *p_addr_cb = &btm_cb.ble_ctr_cb.addr_mgnt_cb;
+        BD_ADDR p_addr_ptr = {0};
+        tBLE_ADDR_TYPE init_addr_type = BLE_ADDR_PUBLIC;
+        tBLE_ADDR_TYPE own_addr_type = p_addr_cb->own_addr_type;
+
+        btm_ble_stop_adv();
+
+        p_cb->evt_type = btm_set_conn_mode_adv_init_addr(p_cb, p_addr_ptr, &init_addr_type,
+                                                         &own_addr_type);
+
+        /* slow adv mode never goes into directed adv */
+        btsnd_hcic_ble_write_adv_params (BTM_BLE_GAP_ADV_SLOW_INT, BTM_BLE_GAP_ADV_SLOW_INT,
+                                         p_cb->evt_type, own_addr_type,
+                                         init_addr_type, p_addr_ptr,
+                                         p_cb->adv_chnl_map, p_cb->afp);
+
+        btm_ble_start_adv();
+    }
+}
+
+static void btm_ble_inquiry_timer_gap_limited_discovery_timeout(UNUSED_ATTR void *data)
+{
+    /* lim_timeout expired, limited discovery should exit now */
+    btm_cb.btm_inq_vars.discoverable_mode &= ~BTM_BLE_LIMITED_DISCOVERABLE;
+    btm_ble_set_adv_flag(btm_cb.btm_inq_vars.connectable_mode,
+                         btm_cb.btm_inq_vars.discoverable_mode);
+}
+
+static void btm_ble_inquiry_timer_timeout(UNUSED_ATTR void *data)
+{
+    btm_ble_stop_inquiry();
+}
+
+static void btm_ble_observer_timer_timeout(UNUSED_ATTR void *data)
+{
+    btm_ble_stop_observe();
+}
+
+void btm_ble_adv_raddr_timer_timeout(void *data)
+{
+    if ((btm_cb.ble_ctr_cb.addr_mgnt_cb.own_addr_type == BLE_ADDR_RANDOM) &&
+        (BTM_BleMaxMultiAdvInstanceCount() > 0)) {
+        btm_ble_multi_adv_configure_rpa((tBTM_BLE_MULTI_ADV_INST *)data);
+    }
+}
+
+void btm_ble_refresh_raddr_timer_timeout(UNUSED_ATTR void *data)
+{
+    if (btm_cb.ble_ctr_cb.addr_mgnt_cb.own_addr_type == BLE_ADDR_RANDOM) {
+        /* refresh the random addr */
+        btm_gen_resolvable_private_addr((void *)btm_gen_resolve_paddr_low);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_read_remote_features_complete
+**
+** Description      This function is called when the command complete message
+**                  is received from the HCI for the read LE remote feature supported
+**                  complete event.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_ble_read_remote_features_complete(UINT8 *p)
+{
+    tACL_CONN        *p_acl_cb = &btm_cb.acl_db[0];
+    UINT16            handle;
+    UINT8             status;
+    int               xx;
+
+    BTM_TRACE_EVENT ("btm_ble_read_remote_features_complete ");
+
+    STREAM_TO_UINT8(status, p);
+
+    // if LE read remote feature failed for HCI_ERR_CONN_FAILED_ESTABLISHMENT,
+    // expect disconnect complete to be received
+    if (status != HCI_ERR_CONN_FAILED_ESTABLISHMENT)
+    {
+        STREAM_TO_UINT16 (handle, p);
+
+        /* Look up the connection by handle and copy features */
+        for (xx = 0; xx < MAX_L2CAP_LINKS; xx++, p_acl_cb++)
+        {
+            if ((p_acl_cb->in_use) && (p_acl_cb->hci_handle == handle))
+            {
+                STREAM_TO_ARRAY(p_acl_cb->peer_le_features, p, BD_FEATURES_LEN);
+                btsnd_hcic_rmt_ver_req (p_acl_cb->hci_handle);
+                break;
+            }
+        }
+    }
+
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_write_adv_enable_complete
+**
+** Description      This function process the write adv enable command complete.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_ble_write_adv_enable_complete(UINT8 * p)
+{
+    tBTM_BLE_INQ_CB *p_cb = &btm_cb.ble_ctr_cb.inq_var;
+
+    /* if write adv enable/disbale not succeed */
+    if (*p != HCI_SUCCESS)
+    {
+        /* toggle back the adv mode */
+        p_cb->adv_mode = !p_cb->adv_mode;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_dir_adv_tout
+**
+** Description      when directed adv time out
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_ble_dir_adv_tout(void)
+{
+    btm_cb.ble_ctr_cb.inq_var.adv_mode = BTM_BLE_ADV_DISABLE;
+
+    /* make device fall back into undirected adv mode by default */
+    btm_cb.ble_ctr_cb.inq_var.directed_conn = FALSE;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_set_topology_mask
+**
+** Description      set BLE topology mask
+**
+** Returns          TRUE is request is allowed, FALSE otherwise.
+**
+*******************************************************************************/
+BOOLEAN btm_ble_set_topology_mask(tBTM_BLE_STATE_MASK request_state_mask)
+{
+    request_state_mask &= BTM_BLE_STATE_ALL_MASK;
+    btm_cb.ble_ctr_cb.cur_states |= (request_state_mask & BTM_BLE_STATE_ALL_MASK);
+    return TRUE;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_clear_topology_mask
+**
+** Description      Clear BLE topology bit mask
+**
+** Returns          TRUE is request is allowed, FALSE otherwise.
+**
+*******************************************************************************/
+BOOLEAN btm_ble_clear_topology_mask (tBTM_BLE_STATE_MASK request_state_mask)
+{
+    request_state_mask &= BTM_BLE_STATE_ALL_MASK;
+    btm_cb.ble_ctr_cb.cur_states &= ~request_state_mask;
+    return TRUE;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_update_link_topology_mask
+**
+** Description      This function update the link topology mask
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_ble_update_link_topology_mask(UINT8 link_role, BOOLEAN increase)
+{
+    btm_ble_clear_topology_mask (BTM_BLE_STATE_ALL_CONN_MASK);
+
+    if (increase)
+        btm_cb.ble_ctr_cb.link_count[link_role]++;
+    else if (btm_cb.ble_ctr_cb.link_count[link_role] > 0)
+        btm_cb.ble_ctr_cb.link_count[link_role]--;
+
+    if (btm_cb.ble_ctr_cb.link_count[HCI_ROLE_MASTER])
+        btm_ble_set_topology_mask (BTM_BLE_STATE_MASTER_BIT);
+
+    if (btm_cb.ble_ctr_cb.link_count[HCI_ROLE_SLAVE])
+        btm_ble_set_topology_mask(BTM_BLE_STATE_SLAVE_BIT);
+
+    if (link_role == HCI_ROLE_SLAVE && increase)
+    {
+        btm_cb.ble_ctr_cb.inq_var.adv_mode = BTM_BLE_ADV_DISABLE;
+        /* make device fall back into undirected adv mode by default */
+        btm_cb.ble_ctr_cb.inq_var.directed_conn = BTM_BLE_CONNECT_EVT;
+        /* clear all adv states */
+        btm_ble_clear_topology_mask(BTM_BLE_STATE_ALL_ADV_MASK);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_update_mode_operation
+**
+** Description      This function update the GAP role operation when a link status
+**                  is updated.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_ble_update_mode_operation(UINT8 link_role, BD_ADDR bd_addr, UINT8 status)
+{
+    if (status == HCI_ERR_DIRECTED_ADVERTISING_TIMEOUT)
+    {
+        btm_cb.ble_ctr_cb.inq_var.adv_mode  = BTM_BLE_ADV_DISABLE;
+        /* make device fall back into undirected adv mode by default */
+        btm_cb.ble_ctr_cb.inq_var.directed_conn = BTM_BLE_CONNECT_EVT;
+        /* clear all adv states */
+        btm_ble_clear_topology_mask (BTM_BLE_STATE_ALL_ADV_MASK);
+    }
+
+    if (btm_cb.ble_ctr_cb.inq_var.connectable_mode == BTM_BLE_CONNECTABLE)
+    {
+        btm_ble_set_connectability(btm_cb.btm_inq_vars.connectable_mode |
+                                   btm_cb.ble_ctr_cb.inq_var.connectable_mode);
+    }
+
+    /* when no connection is attempted, and controller is not rejecting last request
+       due to resource limitation, start next direct connection or background connection
+       now in order */
+    if (btm_ble_get_conn_st() == BLE_CONN_IDLE && status != HCI_ERR_HOST_REJECT_RESOURCES &&
+        !btm_send_pending_direct_conn())
+    {
+         btm_ble_resume_bg_conn();
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_init
+**
+** Description      Initialize the control block variable values.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_ble_init(void)
+{
+    tBTM_BLE_CB *p_cb = &btm_cb.ble_ctr_cb;
+
+    BTM_TRACE_DEBUG("%s", __func__);
+
+    alarm_free(p_cb->observer_timer);
+    alarm_free(p_cb->inq_var.fast_adv_timer);
+    memset(p_cb, 0, sizeof(tBTM_BLE_CB));
+    memset(&(btm_cb.cmn_ble_vsc_cb), 0 , sizeof(tBTM_BLE_VSC_CB));
+    btm_cb.cmn_ble_vsc_cb.values_read = FALSE;
+
+    p_cb->observer_timer = alarm_new("btm_ble.observer_timer");
+    p_cb->cur_states       = 0;
+    p_cb->conn_pending_q = fixed_queue_new(SIZE_MAX);
+
+    p_cb->inq_var.adv_mode = BTM_BLE_ADV_DISABLE;
+    p_cb->inq_var.scan_type = BTM_BLE_SCAN_MODE_NONE;
+    p_cb->inq_var.adv_chnl_map = BTM_BLE_DEFAULT_ADV_CHNL_MAP;
+    p_cb->inq_var.afp = BTM_BLE_DEFAULT_AFP;
+    p_cb->inq_var.sfp = BTM_BLE_DEFAULT_SFP;
+    p_cb->inq_var.connectable_mode = BTM_BLE_NON_CONNECTABLE;
+    p_cb->inq_var.discoverable_mode = BTM_BLE_NON_DISCOVERABLE;
+    p_cb->inq_var.fast_adv_timer = alarm_new("btm_ble_inq.fast_adv_timer");
+    p_cb->inq_var.inquiry_timer = alarm_new("btm_ble_inq.inquiry_timer");
+
+    /* for background connection, reset connection params to be undefined */
+    p_cb->scan_int = p_cb->scan_win = BTM_BLE_SCAN_PARAM_UNDEF;
+
+    p_cb->inq_var.evt_type = BTM_BLE_NON_CONNECT_EVT;
+
+    p_cb->addr_mgnt_cb.refresh_raddr_timer =
+        alarm_new("btm_ble_addr.refresh_raddr_timer");
+
+#if BLE_VND_INCLUDED == FALSE
+    btm_ble_adv_filter_init();
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_topology_check
+**
+** Description      check to see requested state is supported. One state check at
+**                  a time is supported
+**
+** Returns          TRUE is request is allowed, FALSE otherwise.
+**
+*******************************************************************************/
+BOOLEAN btm_ble_topology_check(tBTM_BLE_STATE_MASK request_state_mask)
+{
+    BOOLEAN rt = FALSE;
+
+    UINT8   state_offset = 0;
+    UINT16  cur_states = btm_cb.ble_ctr_cb.cur_states;
+    UINT8   mask, offset;
+    UINT8   request_state = 0;
+
+    /* check only one bit is set and within valid range */
+    if (request_state_mask == BTM_BLE_STATE_INVALID ||
+        request_state_mask > BTM_BLE_STATE_SCAN_ADV_BIT ||
+        (request_state_mask & (request_state_mask -1 )) != 0)
+    {
+        BTM_TRACE_ERROR("illegal state requested: %d", request_state_mask);
+        return rt;
+    }
+
+    while (request_state_mask)
+    {
+        request_state_mask >>= 1;
+        request_state ++;
+    }
+
+    /* check if the requested state is supported or not */
+    mask = btm_le_state_combo_tbl[0][request_state - 1][0];
+    offset = btm_le_state_combo_tbl[0][request_state-1][1];
+
+    const uint8_t *ble_supported_states = controller_get_interface()->get_ble_supported_states();
+
+    if (!BTM_LE_STATES_SUPPORTED(ble_supported_states, mask, offset))
+    {
+        BTM_TRACE_ERROR("state requested not supported: %d", request_state);
+        return rt;
+    }
+
+    rt = TRUE;
+    /* make sure currently active states are all supported in conjunction with the requested
+       state. If the bit in table is not set, the combination is not supported */
+    while (cur_states != 0)
+    {
+        if (cur_states & 0x01)
+        {
+            mask = btm_le_state_combo_tbl[request_state][state_offset][0];
+            offset = btm_le_state_combo_tbl[request_state][state_offset][1];
+
+            if (mask != 0 && offset != 0)
+            {
+                if (!BTM_LE_STATES_SUPPORTED(ble_supported_states, mask, offset))
+                {
+                    rt = FALSE;
+                    break;
+                }
+            }
+        }
+        cur_states >>= 1;
+        state_offset ++;
+    }
+    return rt;
+}
+
+#endif  /* BLE_INCLUDED */
diff --git a/rtkbt/code/bt/stack/btm/btm_ble_int.h b/rtkbt/code/bt/stack/btm/btm_ble_int.h
new file mode 100755
index 0000000..4f5d2fb
--- /dev/null
+++ b/rtkbt/code/bt/stack/btm/btm_ble_int.h
@@ -0,0 +1,497 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  this file contains the main Bluetooth Manager (BTM) internal
+ *  definitions.
+ *
+ ******************************************************************************/
+
+#ifndef BTM_BLE_INT_H
+#define BTM_BLE_INT_H
+
+#include "bt_target.h"
+#include "bt_common.h"
+#include "hcidefs.h"
+#include "btm_ble_api.h"
+#include "btm_int.h"
+
+#if BLE_INCLUDED == TRUE && SMP_INCLUDED == TRUE
+#include "smp_api.h"
+#endif
+
+
+/* scanning enable status */
+#define BTM_BLE_SCAN_ENABLE      0x01
+#define BTM_BLE_SCAN_DISABLE     0x00
+
+/* advertising enable status */
+#define BTM_BLE_ADV_ENABLE     0x01
+#define BTM_BLE_ADV_DISABLE    0x00
+
+/* use the high 4 bits unused by inquiry mode */
+#define BTM_BLE_SELECT_SCAN     0x20
+#define BTM_BLE_NAME_REQUEST    0x40
+#define BTM_BLE_OBSERVE         0x80
+
+#define BTM_BLE_MAX_WL_ENTRY        1
+#define BTM_BLE_AD_DATA_LEN         31
+
+#define BTM_BLE_ENC_MASK    0x03
+
+#define BTM_BLE_DUPLICATE_ENABLE        1
+#define BTM_BLE_DUPLICATE_DISABLE       0
+
+#define BTM_BLE_GAP_DISC_SCAN_INT      18         /* Interval(scan_int) = 11.25 ms= 0x0010 * 0.625 ms */
+#define BTM_BLE_GAP_DISC_SCAN_WIN      18         /* scan_window = 11.25 ms= 0x0010 * 0.625 ms */
+#define BTM_BLE_GAP_ADV_INT            512        /* Tgap(gen_disc) = 1.28 s= 512 * 0.625 ms */
+#define BTM_BLE_GAP_LIM_TIMEOUT_MS     (180 * 1000) /* Tgap(lim_timeout) = 180s max */
+#ifdef BLUETOOTH_RTK
+#define BTM_BLE_LOW_LATENCY_SCAN_INT   18       /* Interval(scan_int) = 5s= 8000 * 0.625 ms */
+#define BTM_BLE_LOW_LATENCY_SCAN_WIN   18       /* scan_window = 5s= 8000 * 0.625 ms */
+#else
+#define BTM_BLE_LOW_LATENCY_SCAN_INT   8000       /* Interval(scan_int) = 5s= 8000 * 0.625 ms */
+#define BTM_BLE_LOW_LATENCY_SCAN_WIN   8000       /* scan_window = 5s= 8000 * 0.625 ms */
+#endif
+
+#define BTM_BLE_GAP_ADV_FAST_INT_1         48         /* TGAP(adv_fast_interval1) = 30(used) ~ 60 ms  = 48 *0.625 */
+#define BTM_BLE_GAP_ADV_FAST_INT_2         160         /* TGAP(adv_fast_interval2) = 100(used) ~ 150 ms = 160 * 0.625 ms */
+#define BTM_BLE_GAP_ADV_SLOW_INT           2048         /* Tgap(adv_slow_interval) = 1.28 s= 512 * 0.625 ms */
+#define BTM_BLE_GAP_ADV_DIR_MAX_INT        800         /* Tgap(dir_conn_adv_int_max) = 500 ms = 800 * 0.625 ms */
+#define BTM_BLE_GAP_ADV_DIR_MIN_INT        400         /* Tgap(dir_conn_adv_int_min) = 250 ms = 400 * 0.625 ms */
+
+#define BTM_BLE_GAP_FAST_ADV_TIMEOUT_MS    (30 * 1000)
+
+#define BTM_BLE_SEC_REQ_ACT_NONE           0
+#define BTM_BLE_SEC_REQ_ACT_ENCRYPT        1 /* encrypt the link using current key or key refresh */
+#define BTM_BLE_SEC_REQ_ACT_PAIR           2
+#define BTM_BLE_SEC_REQ_ACT_DISCARD        3 /* discard the sec request while encryption is started but not completed */
+typedef UINT8   tBTM_BLE_SEC_REQ_ACT;
+
+#define BLE_STATIC_PRIVATE_MSB_MASK          0x3f
+#define BLE_RESOLVE_ADDR_MSB                 0x40   /*  most significant bit, bit7, bit6 is 01 to be resolvable random */
+#define BLE_RESOLVE_ADDR_MASK                0xc0   /* bit 6, and bit7 */
+#define BTM_BLE_IS_RESOLVE_BDA(x)           ((x[0] & BLE_RESOLVE_ADDR_MASK) == BLE_RESOLVE_ADDR_MSB)
+
+#define BLE_PUBLIC_ADDR_MSB_MASK            0xC0
+#define BLE_PUBLIC_ADDR_MSB                 0x80   /*  most significant bit, bit7, bit6 is 10 to be public address*/
+#define BTM_IS_PUBLIC_BDA(x)               ((x[0]  & BLE_PUBLIC_ADDR_MSB) == BLE_PUBLIC_ADDR_MSB_MASK)
+
+/* LE scan activity bit mask, continue with LE inquiry bits */
+#define BTM_LE_SELECT_CONN_ACTIVE      0x40     /* selection connection is in progress */
+#define BTM_LE_OBSERVE_ACTIVE          0x80     /* observe is in progress */
+
+/* BLE scan activity mask checking */
+#define BTM_BLE_IS_SCAN_ACTIVE(x)   ((x) & BTM_BLE_SCAN_ACTIVE_MASK)
+#define BTM_BLE_IS_INQ_ACTIVE(x)   ((x) & BTM_BLE_INQUIRY_MASK)
+#define BTM_BLE_IS_OBS_ACTIVE(x)   ((x) & BTM_LE_OBSERVE_ACTIVE)
+#define BTM_BLE_IS_SEL_CONN_ACTIVE(x)   ((x) & BTM_LE_SELECT_CONN_ACTIVE)
+
+/* BLE ADDR type ID bit */
+#define BLE_ADDR_TYPE_ID_BIT 0x02
+
+#define BTM_VSC_CHIP_CAPABILITY_L_VERSION 55
+#define BTM_VSC_CHIP_CAPABILITY_M_VERSION 95
+
+typedef struct
+{
+    UINT16              data_mask;
+    UINT8               *p_flags;
+    UINT8               ad_data[BTM_BLE_AD_DATA_LEN];
+    UINT8               *p_pad;
+}tBTM_BLE_LOCAL_ADV_DATA;
+
+typedef struct
+{
+    UINT32          inq_count;          /* Used for determining if a response has already been      */
+                                        /* received for the current inquiry operation. (We do not   */
+                                        /* want to flood the caller with multiple responses from    */
+                                        /* the same device.                                         */
+    BOOLEAN         scan_rsp;
+    tBLE_BD_ADDR    le_bda;
+} tINQ_LE_BDADDR;
+
+#define BTM_BLE_ADV_DATA_LEN_MAX        31
+#define BTM_BLE_CACHE_ADV_DATA_MAX      62
+
+#define BTM_BLE_ISVALID_PARAM(x, min, max)  (((x) >= (min) && (x) <= (max)) || ((x) == BTM_BLE_CONN_PARAM_UNDEF))
+
+/* 15 minutes minimum for random address refreshing */
+#define BTM_BLE_PRIVATE_ADDR_INT_MS     (15 * 60 * 1000)
+
+typedef struct
+{
+    UINT16 discoverable_mode;
+    UINT16 connectable_mode;
+    UINT32 scan_window;
+    UINT32 scan_interval;
+    UINT8 scan_type; /* current scan type: active or passive */
+    UINT8 scan_duplicate_filter; /* duplicate filter enabled for scan */
+    UINT16 adv_interval_min;
+    UINT16 adv_interval_max;
+    tBTM_BLE_AFP afp; /* advertising filter policy */
+    tBTM_BLE_SFP sfp; /* scanning filter policy */
+
+    tBLE_ADDR_TYPE adv_addr_type;
+    UINT8 evt_type;
+    UINT8 adv_mode;
+    tBLE_BD_ADDR direct_bda;
+    tBTM_BLE_EVT directed_conn;
+    BOOLEAN fast_adv_on;
+    alarm_t *fast_adv_timer;
+
+    UINT8 adv_len;
+    UINT8 adv_data_cache[BTM_BLE_CACHE_ADV_DATA_MAX];
+#ifdef BLUETOOTH_RTK
+    BD_ADDR          addr;
+#endif
+
+    /* inquiry BD addr database */
+    UINT8 num_bd_entries;
+    UINT8 max_bd_entries;
+    tBTM_BLE_LOCAL_ADV_DATA adv_data;
+    tBTM_BLE_ADV_CHNL_MAP adv_chnl_map;
+
+    alarm_t *inquiry_timer;
+    BOOLEAN scan_rsp;
+    UINT8 state; /* Current state that the inquiry process is in */
+    INT8 tx_power;
+} tBTM_BLE_INQ_CB;
+
+
+/* random address resolving complete callback */
+typedef void (tBTM_BLE_RESOLVE_CBACK) (void * match_rec, void *p);
+
+typedef void (tBTM_BLE_ADDR_CBACK) (BD_ADDR_PTR static_random, void *p);
+
+/* random address management control block */
+typedef struct
+{
+    tBLE_ADDR_TYPE              own_addr_type;         /* local device LE address type */
+    BD_ADDR                     private_addr;
+    BD_ADDR                     random_bda;
+    BOOLEAN                     busy;
+    tBTM_BLE_ADDR_CBACK         *p_generate_cback;
+    void                        *p;
+    alarm_t                     *refresh_raddr_timer;
+} tBTM_LE_RANDOM_CB;
+
+#define BTM_BLE_MAX_BG_CONN_DEV_NUM    10
+
+typedef struct
+{
+    UINT16              min_conn_int;
+    UINT16              max_conn_int;
+    UINT16              slave_latency;
+    UINT16              supervision_tout;
+
+}tBTM_LE_CONN_PRAMS;
+
+
+typedef struct
+{
+    BD_ADDR     bd_addr;
+    UINT8       attr;
+    BOOLEAN     is_connected;
+    BOOLEAN     in_use;
+}tBTM_LE_BG_CONN_DEV;
+
+  /* white list using state as a bit mask */
+#define BTM_BLE_WL_IDLE         0
+#define BTM_BLE_WL_INIT         1
+#define BTM_BLE_WL_SCAN         2
+#define BTM_BLE_WL_ADV          4
+typedef UINT8 tBTM_BLE_WL_STATE;
+
+/* resolving list using state as a bit mask */
+#define BTM_BLE_RL_IDLE         0
+#define BTM_BLE_RL_INIT         1
+#define BTM_BLE_RL_SCAN         2
+#define BTM_BLE_RL_ADV          4
+typedef UINT8 tBTM_BLE_RL_STATE;
+
+/* BLE connection state */
+#define BLE_CONN_IDLE    0
+#define BLE_DIR_CONN     1
+#define BLE_BG_CONN      2
+#define BLE_CONN_CANCEL  3
+typedef UINT8 tBTM_BLE_CONN_ST;
+
+typedef struct
+{
+    void    *p_param;
+}tBTM_BLE_CONN_REQ;
+
+/* LE state request */
+#define BTM_BLE_STATE_INVALID               0
+#define BTM_BLE_STATE_CONN_ADV              1
+#define BTM_BLE_STATE_INIT                  2
+#define BTM_BLE_STATE_MASTER                3
+#define BTM_BLE_STATE_SLAVE                 4
+#define BTM_BLE_STATE_LO_DUTY_DIR_ADV       5
+#define BTM_BLE_STATE_HI_DUTY_DIR_ADV       6
+#define BTM_BLE_STATE_NON_CONN_ADV          7
+#define BTM_BLE_STATE_PASSIVE_SCAN          8
+#define BTM_BLE_STATE_ACTIVE_SCAN           9
+#define BTM_BLE_STATE_SCAN_ADV              10
+#define BTM_BLE_STATE_MAX                   11
+typedef UINT8 tBTM_BLE_STATE;
+
+#define BTM_BLE_STATE_CONN_ADV_BIT          0x0001
+#define BTM_BLE_STATE_INIT_BIT              0x0002
+#define BTM_BLE_STATE_MASTER_BIT            0x0004
+#define BTM_BLE_STATE_SLAVE_BIT             0x0008
+#define BTM_BLE_STATE_LO_DUTY_DIR_ADV_BIT   0x0010
+#define BTM_BLE_STATE_HI_DUTY_DIR_ADV_BIT   0x0020
+#define BTM_BLE_STATE_NON_CONN_ADV_BIT      0x0040
+#define BTM_BLE_STATE_PASSIVE_SCAN_BIT      0x0080
+#define BTM_BLE_STATE_ACTIVE_SCAN_BIT       0x0100
+#define BTM_BLE_STATE_SCAN_ADV_BIT          0x0200
+typedef UINT16 tBTM_BLE_STATE_MASK;
+
+#define BTM_BLE_STATE_ALL_MASK              0x03ff
+#define BTM_BLE_STATE_ALL_ADV_MASK          (BTM_BLE_STATE_CONN_ADV_BIT|BTM_BLE_STATE_LO_DUTY_DIR_ADV_BIT|BTM_BLE_STATE_HI_DUTY_DIR_ADV_BIT|BTM_BLE_STATE_SCAN_ADV_BIT)
+#define BTM_BLE_STATE_ALL_SCAN_MASK         (BTM_BLE_STATE_PASSIVE_SCAN_BIT|BTM_BLE_STATE_ACTIVE_SCAN_BIT)
+#define BTM_BLE_STATE_ALL_CONN_MASK         (BTM_BLE_STATE_MASTER_BIT|BTM_BLE_STATE_SLAVE_BIT)
+
+#ifndef BTM_LE_RESOLVING_LIST_MAX
+#define BTM_LE_RESOLVING_LIST_MAX     0x20
+#endif
+
+typedef struct
+{
+    BD_ADDR         *resolve_q_random_pseudo;
+    UINT8           *resolve_q_action;
+    UINT8           q_next;
+    UINT8           q_pending;
+} tBTM_BLE_RESOLVE_Q;
+
+typedef struct
+{
+    BOOLEAN     in_use;
+    BOOLEAN     to_add;
+    BD_ADDR     bd_addr;
+    UINT8       attr;
+}tBTM_BLE_WL_OP;
+
+/* BLE privacy mode */
+#define BTM_PRIVACY_NONE    0              /* BLE no privacy */
+#define BTM_PRIVACY_1_1     1              /* BLE privacy 1.1, do not support privacy 1.0 */
+#define BTM_PRIVACY_1_2     2              /* BLE privacy 1.2 */
+#define BTM_PRIVACY_MIXED   3              /* BLE privacy mixed mode, broadcom propietary mode */
+typedef UINT8 tBTM_PRIVACY_MODE;
+
+/* data length change event callback */
+typedef void (tBTM_DATA_LENGTH_CHANGE_CBACK) (UINT16 max_tx_length, UINT16 max_rx_length);
+
+/* Define BLE Device Management control structure
+*/
+typedef struct
+{
+    UINT8 scan_activity;         /* LE scan activity mask */
+
+    /*****************************************************
+    **      BLE Inquiry
+    *****************************************************/
+    tBTM_BLE_INQ_CB inq_var;
+
+    /* observer callback and timer */
+    tBTM_INQ_RESULTS_CB *p_obs_results_cb;
+    tBTM_CMPL_CB *p_obs_cmpl_cb;
+    alarm_t *observer_timer;
+
+    /* background connection procedure cb value */
+    tBTM_BLE_CONN_TYPE bg_conn_type;
+    UINT32 scan_int;
+    UINT32 scan_win;
+    tBTM_BLE_SEL_CBACK *p_select_cback;
+
+    /* white list information */
+    UINT8 white_list_avail_size;
+    tBTM_BLE_WL_STATE wl_state;
+
+    fixed_queue_t *conn_pending_q;
+    tBTM_BLE_CONN_ST conn_state;
+
+    /* random address management control block */
+    tBTM_LE_RANDOM_CB addr_mgnt_cb;
+
+    BOOLEAN enabled;
+
+#if BLE_PRIVACY_SPT == TRUE
+    BOOLEAN mixed_mode; /* privacy 1.2 mixed mode is on or not */
+    tBTM_PRIVACY_MODE privacy_mode; /* privacy mode */
+    UINT8 resolving_list_avail_size; /* resolving list available size */
+    tBTM_BLE_RESOLVE_Q resolving_list_pend_q; /* Resolving list queue */
+    tBTM_BLE_RL_STATE suspended_rl_state; /* Suspended resolving list state */
+    UINT8 *irk_list_mask; /* IRK list availability mask, up to max entry bits */
+    tBTM_BLE_RL_STATE rl_state; /* Resolving list state */
+#endif
+
+    tBTM_BLE_WL_OP wl_op_q[BTM_BLE_MAX_BG_CONN_DEV_NUM];
+
+    /* current BLE link state */
+    tBTM_BLE_STATE_MASK cur_states; /* bit mask of tBTM_BLE_STATE */
+    UINT8 link_count[2]; /* total link count master and slave*/
+} tBTM_BLE_CB;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern void btm_ble_adv_raddr_timer_timeout(void *data);
+extern void btm_ble_refresh_raddr_timer_timeout(void *data);
+extern void btm_ble_process_adv_pkt (UINT8 *p);
+extern void btm_ble_proc_scan_rsp_rpt (UINT8 *p);
+extern tBTM_STATUS btm_ble_read_remote_name(BD_ADDR remote_bda, tBTM_INQ_INFO *p_cur, tBTM_CMPL_CB *p_cb);
+extern BOOLEAN btm_ble_cancel_remote_name(BD_ADDR remote_bda);
+
+extern tBTM_STATUS btm_ble_set_discoverability(UINT16 combined_mode);
+extern tBTM_STATUS btm_ble_set_connectability(UINT16 combined_mode);
+extern tBTM_STATUS btm_ble_start_inquiry (UINT8 mode, UINT8   duration);
+extern void btm_ble_stop_scan(void);
+extern void btm_clear_all_pending_le_entry(void);
+
+extern void btm_ble_stop_scan();
+extern BOOLEAN btm_ble_send_extended_scan_params(UINT8 scan_type, UINT32 scan_int,
+                                                 UINT32 scan_win, UINT8 addr_type_own,
+                                                 UINT8 scan_filter_policy);
+extern void btm_ble_stop_inquiry(void);
+extern void btm_ble_init (void);
+extern void btm_ble_connected (UINT8 *bda, UINT16 handle, UINT8 enc_mode, UINT8 role, tBLE_ADDR_TYPE addr_type, BOOLEAN addr_matched);
+extern void btm_ble_read_remote_features_complete(UINT8 *p);
+extern void btm_ble_write_adv_enable_complete(UINT8 * p);
+extern void btm_ble_conn_complete(UINT8 *p, UINT16 evt_len, BOOLEAN enhanced);
+extern void btm_read_ble_local_supported_states_complete(UINT8 *p, UINT16 evt_len);
+extern tBTM_BLE_CONN_ST btm_ble_get_conn_st(void);
+extern void btm_ble_set_conn_st(tBTM_BLE_CONN_ST new_st);
+extern UINT8 *btm_ble_build_adv_data(tBTM_BLE_AD_MASK *p_data_mask, UINT8 **p_dst,
+                                     tBTM_BLE_ADV_DATA *p_data);
+extern tBTM_STATUS btm_ble_start_adv(void);
+extern tBTM_STATUS btm_ble_stop_adv(void);
+extern tBTM_STATUS btm_ble_start_scan(void);
+extern void btm_ble_create_ll_conn_complete (UINT8 status);
+
+/* LE security function from btm_sec.c */
+#if SMP_INCLUDED == TRUE
+extern void btm_ble_link_sec_check(BD_ADDR bd_addr, tBTM_LE_AUTH_REQ auth_req, tBTM_BLE_SEC_REQ_ACT *p_sec_req_act);
+extern void btm_ble_ltk_request_reply(BD_ADDR bda,  BOOLEAN use_stk, BT_OCTET16 stk);
+extern UINT8 btm_proc_smp_cback(tSMP_EVT event, BD_ADDR bd_addr, tSMP_EVT_DATA *p_data);
+extern tBTM_STATUS btm_ble_set_encryption (BD_ADDR bd_addr, tBTM_BLE_SEC_ACT sec_act, UINT8 link_role);
+extern void btm_ble_ltk_request(UINT16 handle, UINT8 rand[8], UINT16 ediv);
+extern tBTM_STATUS btm_ble_start_encrypt(BD_ADDR bda, BOOLEAN use_stk, BT_OCTET16 stk);
+extern void btm_ble_link_encrypted(BD_ADDR bd_addr, UINT8 encr_enable);
+#endif
+
+/* LE device management functions */
+extern void btm_ble_reset_id( void );
+
+/* security related functions */
+extern void btm_ble_increment_sign_ctr(BD_ADDR bd_addr, BOOLEAN is_local );
+extern BOOLEAN btm_get_local_div (BD_ADDR bd_addr, UINT16 *p_div);
+extern BOOLEAN btm_ble_get_enc_key_type(BD_ADDR bd_addr, UINT8 *p_key_types);
+
+extern void btm_ble_test_command_complete(UINT8 *p);
+extern void btm_ble_rand_enc_complete (UINT8 *p, UINT16 op_code, tBTM_RAND_ENC_CB *p_enc_cplt_cback);
+
+extern void btm_sec_save_le_key(BD_ADDR bd_addr, tBTM_LE_KEY_TYPE key_type, tBTM_LE_KEY_VALUE *p_keys, BOOLEAN pass_to_application);
+extern void btm_ble_update_sec_key_size(BD_ADDR bd_addr, UINT8 enc_key_size);
+extern UINT8 btm_ble_read_sec_key_size(BD_ADDR bd_addr);
+
+/* white list function */
+extern BOOLEAN btm_update_dev_to_white_list(BOOLEAN to_add, BD_ADDR bd_addr);
+extern void btm_update_scanner_filter_policy(tBTM_BLE_SFP scan_policy);
+extern void btm_update_adv_filter_policy(tBTM_BLE_AFP adv_policy);
+extern void btm_ble_clear_white_list (void);
+extern void btm_read_white_list_size_complete(UINT8 *p, UINT16 evt_len);
+extern void btm_ble_add_2_white_list_complete(UINT8 status);
+extern void btm_ble_remove_from_white_list_complete(UINT8 *p, UINT16 evt_len);
+extern void btm_ble_clear_white_list_complete(UINT8 *p, UINT16 evt_len);
+extern void btm_ble_white_list_init(UINT8 white_list_size);
+
+/* background connection function */
+extern BOOLEAN btm_ble_suspend_bg_conn(void);
+extern BOOLEAN btm_ble_resume_bg_conn(void);
+extern void btm_ble_initiate_select_conn(BD_ADDR bda);
+extern BOOLEAN btm_ble_start_auto_conn(BOOLEAN start);
+extern BOOLEAN btm_ble_start_select_conn(BOOLEAN start,tBTM_BLE_SEL_CBACK   *p_select_cback);
+extern BOOLEAN btm_ble_renew_bg_conn_params(BOOLEAN add, BD_ADDR bd_addr);
+extern void btm_write_dir_conn_wl(BD_ADDR target_addr);
+extern void btm_ble_update_mode_operation(UINT8 link_role, BD_ADDR bda, UINT8 status);
+extern BOOLEAN btm_execute_wl_dev_operation(void);
+extern void btm_ble_update_link_topology_mask(UINT8 role, BOOLEAN increase);
+
+/* direct connection utility */
+extern BOOLEAN btm_send_pending_direct_conn(void);
+extern void btm_ble_enqueue_direct_conn_req(void *p_param);
+
+/* BLE address management */
+extern void btm_gen_resolvable_private_addr (void *p_cmd_cplt_cback);
+extern void btm_gen_non_resolvable_private_addr (tBTM_BLE_ADDR_CBACK *p_cback, void *p);
+extern void btm_ble_resolve_random_addr(BD_ADDR random_bda, tBTM_BLE_RESOLVE_CBACK * p_cback, void *p);
+extern void btm_gen_resolve_paddr_low(tBTM_RAND_ENC *p);
+
+/*  privacy function */
+#if (defined BLE_PRIVACY_SPT && BLE_PRIVACY_SPT == TRUE)
+/* BLE address mapping with CS feature */
+extern BOOLEAN btm_identity_addr_to_random_pseudo(BD_ADDR bd_addr, UINT8 *p_addr_type, BOOLEAN refresh);
+extern BOOLEAN btm_random_pseudo_to_identity_addr(BD_ADDR random_pseudo, UINT8 *p_static_addr_type);
+extern void btm_ble_refresh_peer_resolvable_private_addr(BD_ADDR pseudo_bda, BD_ADDR rra, UINT8 rra_type);
+extern void btm_ble_refresh_local_resolvable_private_addr(BD_ADDR pseudo_addr, BD_ADDR local_rpa);
+extern void btm_ble_read_resolving_list_entry_complete(UINT8 *p, UINT16 evt_len) ;
+extern void btm_ble_remove_resolving_list_entry_complete(UINT8 *p, UINT16 evt_len);
+extern void btm_ble_add_resolving_list_entry_complete(UINT8 *p, UINT16 evt_len);
+extern void btm_ble_clear_resolving_list_complete(UINT8 *p, UINT16 evt_len);
+extern void btm_read_ble_resolving_list_size_complete (UINT8 *p, UINT16 evt_len);
+extern void btm_ble_enable_resolving_list(UINT8);
+extern BOOLEAN btm_ble_disable_resolving_list(UINT8 rl_mask, BOOLEAN to_resume);
+extern void btm_ble_enable_resolving_list_for_platform (UINT8 rl_mask);
+extern void btm_ble_resolving_list_init(UINT8 max_irk_list_sz);
+extern void btm_ble_resolving_list_cleanup(void);
+#endif
+
+extern void btm_ble_multi_adv_configure_rpa (tBTM_BLE_MULTI_ADV_INST *p_inst);
+extern void btm_ble_multi_adv_init(void);
+extern void* btm_ble_multi_adv_get_ref(UINT8 inst_id);
+extern void btm_ble_multi_adv_cleanup(void);
+extern void btm_ble_multi_adv_reenable(UINT8 inst_id);
+extern void btm_ble_multi_adv_enb_privacy(BOOLEAN enable);
+extern char btm_ble_map_adv_tx_power(int tx_power_index);
+extern void btm_ble_batchscan_init(void);
+extern void btm_ble_batchscan_cleanup(void);
+extern void btm_ble_adv_filter_init(void);
+extern void btm_ble_adv_filter_cleanup(void);
+extern BOOLEAN btm_ble_topology_check(tBTM_BLE_STATE_MASK request);
+extern BOOLEAN btm_ble_clear_topology_mask(tBTM_BLE_STATE_MASK request_state);
+extern BOOLEAN btm_ble_set_topology_mask(tBTM_BLE_STATE_MASK request_state);
+
+#if BTM_BLE_CONFORMANCE_TESTING == TRUE
+extern void btm_ble_set_no_disc_if_pair_fail (BOOLEAN disble_disc);
+extern void btm_ble_set_test_mac_value (BOOLEAN enable, UINT8 *p_test_mac_val);
+extern void btm_ble_set_test_local_sign_cntr_value(BOOLEAN enable, UINT32 test_local_sign_cntr);
+extern void btm_set_random_address(BD_ADDR random_bda);
+extern void btm_ble_set_keep_rfu_in_auth_req(BOOLEAN keep_rfu);
+#endif
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/rtkbt/code/bt/stack/btm/btm_ble_multi_adv.c b/rtkbt/code/bt/stack/btm/btm_ble_multi_adv.c
new file mode 100755
index 0000000..5efe752
--- /dev/null
+++ b/rtkbt/code/bt/stack/btm/btm_ble_multi_adv.c
@@ -0,0 +1,890 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014  Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#include <string.h>
+
+#include "bt_target.h"
+#include "device/include/controller.h"
+
+#if (BLE_INCLUDED == TRUE)
+#include "bt_types.h"
+#include "hcimsgs.h"
+#include "btu.h"
+#include "btm_int.h"
+#include "bt_utils.h"
+#include "hcidefs.h"
+#include "btm_ble_api.h"
+
+/************************************************************************************
+**  Constants & Macros
+************************************************************************************/
+/* length of each multi adv sub command */
+#define BTM_BLE_MULTI_ADV_ENB_LEN                       3
+#define BTM_BLE_MULTI_ADV_SET_PARAM_LEN                 24
+#define BTM_BLE_MULTI_ADV_WRITE_DATA_LEN                (BTM_BLE_AD_DATA_LEN + 3)
+#define BTM_BLE_MULTI_ADV_SET_RANDOM_ADDR_LEN           8
+
+#define BTM_BLE_MULTI_ADV_CB_EVT_MASK   0xF0
+#define BTM_BLE_MULTI_ADV_SUBCODE_MASK  0x0F
+
+/************************************************************************************
+**  Static variables
+************************************************************************************/
+tBTM_BLE_MULTI_ADV_CB  btm_multi_adv_cb;
+tBTM_BLE_MULTI_ADV_INST_IDX_Q btm_multi_adv_idx_q;
+
+/************************************************************************************
+**  Externs
+************************************************************************************/
+extern fixed_queue_t *btu_general_alarm_queue;
+extern void btm_ble_update_dmt_flag_bits(UINT8 *flag_value,
+                                               const UINT16 connect_mode, const UINT16 disc_mode);
+
+/*******************************************************************************
+**
+** Function         btm_ble_multi_adv_enq_op_q
+**
+** Description      enqueue a multi adv operation in q to check command complete
+**                  status.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_ble_multi_adv_enq_op_q(UINT8 opcode, UINT8 inst_id, UINT8 cb_evt)
+{
+    tBTM_BLE_MULTI_ADV_OPQ  *p_op_q = &btm_multi_adv_cb.op_q;
+
+    p_op_q->p_inst_id[p_op_q->next_idx] = inst_id;
+
+    p_op_q->p_sub_code[p_op_q->next_idx] = (opcode |(cb_evt << 4));
+
+    p_op_q->next_idx = (p_op_q->next_idx + 1) %  BTM_BleMaxMultiAdvInstanceCount();
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_multi_adv_deq_op_q
+**
+** Description      dequeue a multi adv operation from q when command complete
+**                  is received.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_ble_multi_adv_deq_op_q(UINT8 *p_opcode, UINT8 *p_inst_id, UINT8 *p_cb_evt)
+{
+    tBTM_BLE_MULTI_ADV_OPQ  *p_op_q = &btm_multi_adv_cb.op_q;
+
+    *p_inst_id = p_op_q->p_inst_id[p_op_q->pending_idx] & 0x7F;
+    *p_cb_evt = (p_op_q->p_sub_code[p_op_q->pending_idx] >> 4);
+    *p_opcode = (p_op_q->p_sub_code[p_op_q->pending_idx] & BTM_BLE_MULTI_ADV_SUBCODE_MASK);
+
+    p_op_q->pending_idx = (p_op_q->pending_idx + 1) %  BTM_BleMaxMultiAdvInstanceCount();
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_multi_adv_vsc_cmpl_cback
+**
+** Description      Multi adv VSC complete callback
+**
+** Parameters
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_ble_multi_adv_vsc_cmpl_cback (tBTM_VSC_CMPL *p_params)
+{
+    UINT8  status, subcode;
+    UINT8  *p = p_params->p_param_buf, inst_id;
+    UINT16  len = p_params->param_len;
+    tBTM_BLE_MULTI_ADV_INST *p_inst ;
+    UINT8   cb_evt = 0, opcode;
+
+    if (len  < 2)
+    {
+        BTM_TRACE_ERROR("wrong length for btm_ble_multi_adv_vsc_cmpl_cback");
+        return;
+    }
+
+    STREAM_TO_UINT8(status, p);
+    STREAM_TO_UINT8(subcode, p);
+
+    btm_ble_multi_adv_deq_op_q(&opcode, &inst_id, &cb_evt);
+
+    BTM_TRACE_DEBUG("op_code = %02x inst_id = %d cb_evt = %02x", opcode, inst_id, cb_evt);
+
+    if (opcode != subcode || inst_id == 0)
+    {
+        BTM_TRACE_ERROR("get unexpected VSC cmpl, expect: %d get: %d",subcode,opcode);
+        return;
+    }
+
+    p_inst = &btm_multi_adv_cb.p_adv_inst[inst_id - 1];
+
+    switch (subcode)
+    {
+        case BTM_BLE_MULTI_ADV_ENB:
+        {
+            BTM_TRACE_DEBUG("BTM_BLE_MULTI_ADV_ENB status = %d", status);
+
+            /* Mark as not in use here, if instance cannot be enabled */
+            if (HCI_SUCCESS != status && BTM_BLE_MULTI_ADV_ENB_EVT == cb_evt)
+                btm_multi_adv_cb.p_adv_inst[inst_id-1].in_use = FALSE;
+            break;
+        }
+
+        case BTM_BLE_MULTI_ADV_SET_PARAM:
+        {
+            BTM_TRACE_DEBUG("BTM_BLE_MULTI_ADV_SET_PARAM status = %d", status);
+            break;
+        }
+
+        case BTM_BLE_MULTI_ADV_WRITE_ADV_DATA:
+        {
+            BTM_TRACE_DEBUG("BTM_BLE_MULTI_ADV_WRITE_ADV_DATA status = %d", status);
+            break;
+        }
+
+        case BTM_BLE_MULTI_ADV_WRITE_SCAN_RSP_DATA:
+        {
+            BTM_TRACE_DEBUG("BTM_BLE_MULTI_ADV_WRITE_SCAN_RSP_DATA status = %d", status);
+            break;
+        }
+
+        case BTM_BLE_MULTI_ADV_SET_RANDOM_ADDR:
+        {
+            BTM_TRACE_DEBUG("BTM_BLE_MULTI_ADV_SET_RANDOM_ADDR status = %d", status);
+            break;
+        }
+
+        default:
+            break;
+    }
+
+    if (cb_evt != 0 && p_inst->p_cback != NULL)
+    {
+        (p_inst->p_cback)(cb_evt, inst_id, p_inst->p_ref, status);
+    }
+    return;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_enable_multi_adv
+**
+** Description      This function enable the customer specific feature in controller
+**
+** Parameters       enable: enable or disable
+**                  inst_id:    adv instance ID, can not be 0
+**
+** Returns          status
+**
+*******************************************************************************/
+tBTM_STATUS btm_ble_enable_multi_adv (BOOLEAN enable, UINT8 inst_id, UINT8 cb_evt)
+{
+    UINT8           param[BTM_BLE_MULTI_ADV_ENB_LEN], *pp;
+    UINT8           enb = enable ? 1: 0;
+    tBTM_STATUS     rt;
+
+    pp = param;
+    memset(param, 0, BTM_BLE_MULTI_ADV_ENB_LEN);
+
+    UINT8_TO_STREAM (pp, BTM_BLE_MULTI_ADV_ENB);
+    UINT8_TO_STREAM (pp, enb);
+    UINT8_TO_STREAM (pp, inst_id);
+
+    BTM_TRACE_EVENT (" btm_ble_enable_multi_adv: enb %d, Inst ID %d",enb,inst_id);
+
+    if ((rt = BTM_VendorSpecificCommand (HCI_BLE_MULTI_ADV_OCF,
+                                    BTM_BLE_MULTI_ADV_ENB_LEN,
+                                    param,
+                                    btm_ble_multi_adv_vsc_cmpl_cback))
+                                     == BTM_CMD_STARTED)
+    {
+        btm_ble_multi_adv_enq_op_q(BTM_BLE_MULTI_ADV_ENB, inst_id, cb_evt);
+    }
+    return rt;
+}
+/*******************************************************************************
+**
+** Function         btm_ble_map_adv_tx_power
+**
+** Description      return the actual power in dBm based on the mapping in config file
+**
+** Parameters       advertise parameters used for this instance.
+**
+** Returns          tx power in dBm
+**
+*******************************************************************************/
+int btm_ble_tx_power[BTM_BLE_ADV_TX_POWER_MAX + 1] = BTM_BLE_ADV_TX_POWER;
+char btm_ble_map_adv_tx_power(int tx_power_index)
+{
+    if(0 <= tx_power_index && tx_power_index < BTM_BLE_ADV_TX_POWER_MAX)
+        return (char)btm_ble_tx_power[tx_power_index];
+    return 0;
+}
+/*******************************************************************************
+**
+** Function         btm_ble_multi_adv_set_params
+**
+** Description      This function enable the customer specific feature in controller
+**
+** Parameters       advertise parameters used for this instance.
+**
+** Returns          status
+**
+*******************************************************************************/
+tBTM_STATUS btm_ble_multi_adv_set_params (tBTM_BLE_MULTI_ADV_INST *p_inst,
+                                          tBTM_BLE_ADV_PARAMS *p_params,
+                                          UINT8 cb_evt)
+{
+    UINT8           param[BTM_BLE_MULTI_ADV_SET_PARAM_LEN], *pp;
+    tBTM_STATUS     rt;
+    BD_ADDR         dummy ={0,0,0,0,0,0};
+
+    pp = param;
+    memset(param, 0, BTM_BLE_MULTI_ADV_SET_PARAM_LEN);
+
+    UINT8_TO_STREAM(pp, BTM_BLE_MULTI_ADV_SET_PARAM);
+
+    UINT16_TO_STREAM (pp, p_params->adv_int_min);
+    UINT16_TO_STREAM (pp, p_params->adv_int_max);
+    UINT8_TO_STREAM  (pp, p_params->adv_type);
+
+#if (defined BLE_PRIVACY_SPT && BLE_PRIVACY_SPT == TRUE)
+    if (btm_cb.ble_ctr_cb.privacy_mode != BTM_PRIVACY_NONE)
+    {
+        UINT8_TO_STREAM  (pp, BLE_ADDR_RANDOM);
+        BDADDR_TO_STREAM (pp, p_inst->rpa);
+    }
+    else
+#endif
+    {
+        UINT8_TO_STREAM  (pp, BLE_ADDR_PUBLIC);
+        BDADDR_TO_STREAM (pp, controller_get_interface()->get_address()->address);
+    }
+
+    BTM_TRACE_EVENT (" btm_ble_multi_adv_set_params,Min %d, Max %d,adv_type %d",
+        p_params->adv_int_min,p_params->adv_int_max,p_params->adv_type);
+
+    UINT8_TO_STREAM  (pp, 0);
+    BDADDR_TO_STREAM (pp, dummy);
+
+    if (p_params->channel_map == 0 || p_params->channel_map > BTM_BLE_DEFAULT_ADV_CHNL_MAP)
+        p_params->channel_map = BTM_BLE_DEFAULT_ADV_CHNL_MAP;
+    UINT8_TO_STREAM (pp, p_params->channel_map);
+
+    if (p_params->adv_filter_policy >= AP_SCAN_CONN_POLICY_MAX)
+        p_params->adv_filter_policy = AP_SCAN_CONN_ALL;
+    UINT8_TO_STREAM (pp, p_params->adv_filter_policy);
+
+    UINT8_TO_STREAM (pp, p_inst->inst_id);
+
+    if (p_params->tx_power > BTM_BLE_ADV_TX_POWER_MAX)
+        p_params->tx_power = BTM_BLE_ADV_TX_POWER_MAX;
+    UINT8_TO_STREAM (pp, btm_ble_map_adv_tx_power(p_params->tx_power));
+
+    BTM_TRACE_EVENT("set_params:Chnl Map %d,adv_fltr policy %d,ID:%d, TX Power%d",
+        p_params->channel_map,p_params->adv_filter_policy,p_inst->inst_id,p_params->tx_power);
+
+    if ((rt = BTM_VendorSpecificCommand (HCI_BLE_MULTI_ADV_OCF,
+                                    BTM_BLE_MULTI_ADV_SET_PARAM_LEN,
+                                    param,
+                                    btm_ble_multi_adv_vsc_cmpl_cback))
+           == BTM_CMD_STARTED)
+    {
+        p_inst->adv_evt = p_params->adv_type;
+
+#if (defined BLE_PRIVACY_SPT && BLE_PRIVACY_SPT == TRUE)
+        if (btm_cb.ble_ctr_cb.privacy_mode != BTM_PRIVACY_NONE) {
+            alarm_set_on_queue(p_inst->adv_raddr_timer,
+                               BTM_BLE_PRIVATE_ADDR_INT_MS,
+                               btm_ble_adv_raddr_timer_timeout, p_inst,
+                               btu_general_alarm_queue);
+        }
+#endif
+        btm_ble_multi_adv_enq_op_q(BTM_BLE_MULTI_ADV_SET_PARAM, p_inst->inst_id, cb_evt);
+    }
+    return rt;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_multi_adv_write_rpa
+**
+** Description      This function write the random address for the adv instance into
+**                  controller
+**
+** Parameters
+**
+** Returns          status
+**
+*******************************************************************************/
+tBTM_STATUS btm_ble_multi_adv_write_rpa (tBTM_BLE_MULTI_ADV_INST *p_inst, BD_ADDR random_addr)
+{
+    UINT8           param[BTM_BLE_MULTI_ADV_SET_RANDOM_ADDR_LEN], *pp = param;
+    tBTM_STATUS     rt;
+
+    BTM_TRACE_EVENT ("%s-BD_ADDR:%02x-%02x-%02x-%02x-%02x-%02x,inst_id:%d",
+                      __FUNCTION__, random_addr[5], random_addr[4], random_addr[3], random_addr[2],
+                      random_addr[1], random_addr[0], p_inst->inst_id);
+
+    memset(param, 0, BTM_BLE_MULTI_ADV_SET_RANDOM_ADDR_LEN);
+
+    UINT8_TO_STREAM (pp, BTM_BLE_MULTI_ADV_SET_RANDOM_ADDR);
+    BDADDR_TO_STREAM(pp, random_addr);
+    UINT8_TO_STREAM(pp,  p_inst->inst_id);
+
+    if ((rt = BTM_VendorSpecificCommand (HCI_BLE_MULTI_ADV_OCF,
+                                    BTM_BLE_MULTI_ADV_SET_RANDOM_ADDR_LEN,
+                                    param,
+                                    btm_ble_multi_adv_vsc_cmpl_cback)) == BTM_CMD_STARTED)
+    {
+        /* start a periodical timer to refresh random addr */
+        /* TODO: is the above comment correct - is the timer periodical? */
+        alarm_set_on_queue(p_inst->adv_raddr_timer,
+                           BTM_BLE_PRIVATE_ADDR_INT_MS,
+                           btm_ble_adv_raddr_timer_timeout, p_inst,
+                           btu_general_alarm_queue);
+        btm_ble_multi_adv_enq_op_q(BTM_BLE_MULTI_ADV_SET_RANDOM_ADDR,
+                                   p_inst->inst_id, 0);
+    }
+    return rt;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_multi_adv_gen_rpa_cmpl
+**
+** Description      RPA generation completion callback for each adv instance. Will
+**                  continue write the new RPA into controller.
+**
+** Returns          none.
+**
+*******************************************************************************/
+void btm_ble_multi_adv_gen_rpa_cmpl(tBTM_RAND_ENC *p)
+{
+#if (SMP_INCLUDED == TRUE)
+    tSMP_ENC    output;
+    UINT8 index = 0;
+    tBTM_BLE_MULTI_ADV_INST *p_inst = NULL;
+
+     /* Retrieve the index of adv instance from stored Q */
+    if (btm_multi_adv_idx_q.front == -1)
+    {
+        BTM_TRACE_ERROR(" %s can't locate advertise instance", __FUNCTION__);
+        return;
+    }
+    else
+    {
+        index = btm_multi_adv_idx_q.inst_index_queue[btm_multi_adv_idx_q.front];
+        if (btm_multi_adv_idx_q.front == btm_multi_adv_idx_q.rear)
+        {
+            btm_multi_adv_idx_q.front = -1;
+            btm_multi_adv_idx_q.rear = -1;
+        }
+        else
+        {
+            btm_multi_adv_idx_q.front = (btm_multi_adv_idx_q.front + 1) % BTM_BLE_MULTI_ADV_MAX;
+        }
+    }
+
+    p_inst = &(btm_multi_adv_cb.p_adv_inst[index]);
+
+    BTM_TRACE_EVENT ("btm_ble_multi_adv_gen_rpa_cmpl inst_id = %d", p_inst->inst_id);
+    if (p)
+    {
+        p->param_buf[2] &= (~BLE_RESOLVE_ADDR_MASK);
+        p->param_buf[2] |= BLE_RESOLVE_ADDR_MSB;
+
+        p_inst->rpa[2] = p->param_buf[0];
+        p_inst->rpa[1] = p->param_buf[1];
+        p_inst->rpa[0] = p->param_buf[2];
+
+        if (!SMP_Encrypt(btm_cb.devcb.id_keys.irk, BT_OCTET16_LEN, p->param_buf, 3, &output))
+        {
+            BTM_TRACE_DEBUG("generate random address failed");
+        }
+        else
+        {
+            /* set hash to be LSB of rpAddress */
+            p_inst->rpa[5] = output.param_buf[0];
+            p_inst->rpa[4] = output.param_buf[1];
+            p_inst->rpa[3] = output.param_buf[2];
+        }
+
+        if (p_inst->inst_id != BTM_BLE_MULTI_ADV_DEFAULT_STD &&
+            p_inst->inst_id < BTM_BleMaxMultiAdvInstanceCount())
+        {
+            /* set it to controller */
+            btm_ble_multi_adv_write_rpa(p_inst, p_inst->rpa);
+        }
+    }
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_multi_adv_configure_rpa
+**
+** Description      This function set the random address for the adv instance
+**
+** Parameters       advertise parameters used for this instance.
+**
+** Returns          none
+**
+*******************************************************************************/
+void btm_ble_multi_adv_configure_rpa (tBTM_BLE_MULTI_ADV_INST *p_inst)
+{
+    if (btm_multi_adv_idx_q.front == (btm_multi_adv_idx_q.rear + 1) % BTM_BLE_MULTI_ADV_MAX)
+    {
+        BTM_TRACE_ERROR("outstanding rand generation exceeded max allowed ");
+        return;
+    }
+    else
+    {
+        if (btm_multi_adv_idx_q.front == -1)
+        {
+            btm_multi_adv_idx_q.front = 0;
+            btm_multi_adv_idx_q.rear = 0;
+        }
+        else
+        {
+            btm_multi_adv_idx_q.rear = (btm_multi_adv_idx_q.rear + 1) % BTM_BLE_MULTI_ADV_MAX;
+        }
+        btm_multi_adv_idx_q.inst_index_queue[btm_multi_adv_idx_q.rear] = p_inst->index;
+    }
+    btm_gen_resolvable_private_addr((void *)btm_ble_multi_adv_gen_rpa_cmpl);
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_multi_adv_reenable
+**
+** Description      This function re-enable adv instance upon a connection establishment.
+**
+** Parameters       advertise parameters used for this instance.
+**
+** Returns          none.
+**
+*******************************************************************************/
+void btm_ble_multi_adv_reenable(UINT8 inst_id)
+{
+    tBTM_BLE_MULTI_ADV_INST *p_inst = &btm_multi_adv_cb.p_adv_inst[inst_id - 1];
+
+    if (TRUE == p_inst->in_use)
+    {
+        if (p_inst->adv_evt != BTM_BLE_CONNECT_DIR_EVT)
+            btm_ble_enable_multi_adv (TRUE, p_inst->inst_id, 0);
+        else
+          /* mark directed adv as disabled if adv has been stopped */
+        {
+            (p_inst->p_cback)(BTM_BLE_MULTI_ADV_DISABLE_EVT,p_inst->inst_id,p_inst->p_ref,0);
+             p_inst->in_use = FALSE;
+        }
+     }
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_multi_adv_enb_privacy
+**
+** Description      This function enable/disable privacy setting in multi adv
+**
+** Parameters       enable: enable or disable the adv instance.
+**
+** Returns          none.
+**
+*******************************************************************************/
+void btm_ble_multi_adv_enb_privacy(BOOLEAN enable)
+{
+    UINT8 i;
+    tBTM_BLE_MULTI_ADV_INST *p_inst = &btm_multi_adv_cb.p_adv_inst[0];
+
+    for (i = 0; i <  BTM_BleMaxMultiAdvInstanceCount() - 1; i ++, p_inst++)
+    {
+        p_inst->in_use = FALSE;
+        if (enable)
+            btm_ble_multi_adv_configure_rpa(p_inst);
+        else
+            alarm_cancel(p_inst->adv_raddr_timer);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         BTM_BleEnableAdvInstance
+**
+** Description      This function enable a Multi-ADV instance with the specified
+**                  adv parameters
+**
+** Parameters       p_params: pointer to the adv parameter structure, set as default
+**                            adv parameter when the instance is enabled.
+**                  p_cback: callback function for the adv instance.
+**                  p_ref:  reference data attach to the adv instance to be enabled.
+**
+** Returns          status
+**
+*******************************************************************************/
+tBTM_STATUS BTM_BleEnableAdvInstance (tBTM_BLE_ADV_PARAMS *p_params,
+                                      tBTM_BLE_MULTI_ADV_CBACK *p_cback,void *p_ref)
+{
+    UINT8 i;
+    tBTM_STATUS rt = BTM_NO_RESOURCES;
+    tBTM_BLE_MULTI_ADV_INST *p_inst = &btm_multi_adv_cb.p_adv_inst[0];
+
+    BTM_TRACE_EVENT("BTM_BleEnableAdvInstance called");
+
+    if (0 == btm_cb.cmn_ble_vsc_cb.adv_inst_max)
+    {
+        BTM_TRACE_ERROR("Controller does not support Multi ADV");
+        return BTM_ERR_PROCESSING;
+    }
+
+    if (NULL == p_inst)
+    {
+        BTM_TRACE_ERROR("Invalid instance in BTM_BleEnableAdvInstance");
+        return BTM_ERR_PROCESSING;
+    }
+
+    for (i = 0; i <  BTM_BleMaxMultiAdvInstanceCount() - 1; i ++, p_inst++)
+    {
+        if (FALSE == p_inst->in_use)
+        {
+            p_inst->in_use = TRUE;
+            /* configure adv parameter */
+            if (p_params)
+                rt = btm_ble_multi_adv_set_params(p_inst, p_params, 0);
+            else
+                rt = BTM_CMD_STARTED;
+
+            /* enable adv */
+            BTM_TRACE_EVENT("btm_ble_enable_multi_adv being called with inst_id:%d",
+                p_inst->inst_id);
+
+            if (BTM_CMD_STARTED == rt)
+            {
+                if ((rt = btm_ble_enable_multi_adv (TRUE, p_inst->inst_id,
+                          BTM_BLE_MULTI_ADV_ENB_EVT)) == BTM_CMD_STARTED)
+                {
+                    p_inst->p_cback = p_cback;
+                    p_inst->p_ref   = p_ref;
+                }
+            }
+
+            if (BTM_CMD_STARTED != rt)
+            {
+                p_inst->in_use = FALSE;
+                BTM_TRACE_ERROR("BTM_BleEnableAdvInstance failed");
+            }
+            break;
+        }
+    }
+    return rt;
+}
+
+/*******************************************************************************
+**
+** Function         BTM_BleUpdateAdvInstParam
+**
+** Description      This function update a Multi-ADV instance with the specified
+**                  adv parameters.
+**
+** Parameters       inst_id: adv instance ID
+**                  p_params: pointer to the adv parameter structure.
+**
+** Returns          status
+**
+*******************************************************************************/
+tBTM_STATUS BTM_BleUpdateAdvInstParam (UINT8 inst_id, tBTM_BLE_ADV_PARAMS *p_params)
+{
+    tBTM_STATUS rt = BTM_ILLEGAL_VALUE;
+    tBTM_BLE_MULTI_ADV_INST *p_inst = &btm_multi_adv_cb.p_adv_inst[inst_id - 1];
+
+    BTM_TRACE_EVENT("BTM_BleUpdateAdvInstParam called with inst_id:%d", inst_id);
+
+    if (0 == btm_cb.cmn_ble_vsc_cb.adv_inst_max)
+    {
+        BTM_TRACE_ERROR("Controller does not support Multi ADV");
+        return BTM_ERR_PROCESSING;
+    }
+
+    if (inst_id <  BTM_BleMaxMultiAdvInstanceCount() &&
+        inst_id != BTM_BLE_MULTI_ADV_DEFAULT_STD &&
+        p_params != NULL)
+    {
+        if (FALSE == p_inst->in_use)
+        {
+            BTM_TRACE_DEBUG("adv instance %d is not active", inst_id);
+            return BTM_WRONG_MODE;
+        }
+        else
+            btm_ble_enable_multi_adv(FALSE, inst_id, 0);
+
+        if (BTM_CMD_STARTED == btm_ble_multi_adv_set_params(p_inst, p_params, 0))
+            rt = btm_ble_enable_multi_adv(TRUE, inst_id, BTM_BLE_MULTI_ADV_PARAM_EVT);
+    }
+    return rt;
+}
+
+/*******************************************************************************
+**
+** Function         BTM_BleCfgAdvInstData
+**
+** Description      This function configure a Multi-ADV instance with the specified
+**                  adv data or scan response data.
+**
+** Parameters       inst_id: adv instance ID
+**                  is_scan_rsp: is this scan response. if no, set as adv data.
+**                  data_mask: adv data mask.
+**                  p_data: pointer to the adv data structure.
+**
+** Returns          status
+**
+*******************************************************************************/
+tBTM_STATUS BTM_BleCfgAdvInstData (UINT8 inst_id, BOOLEAN is_scan_rsp,
+                                    tBTM_BLE_AD_MASK data_mask,
+                                    tBTM_BLE_ADV_DATA *p_data)
+{
+    UINT8       param[BTM_BLE_MULTI_ADV_WRITE_DATA_LEN], *pp = param;
+    UINT8       sub_code = (is_scan_rsp) ?
+                           BTM_BLE_MULTI_ADV_WRITE_SCAN_RSP_DATA : BTM_BLE_MULTI_ADV_WRITE_ADV_DATA;
+    UINT8       *p_len;
+    tBTM_STATUS rt;
+    UINT8 *pp_temp = (UINT8*)(param + BTM_BLE_MULTI_ADV_WRITE_DATA_LEN -1);
+    tBTM_BLE_VSC_CB cmn_ble_vsc_cb;
+
+    BTM_BleGetVendorCapabilities(&cmn_ble_vsc_cb);
+    if (0 == cmn_ble_vsc_cb.adv_inst_max)
+    {
+        BTM_TRACE_ERROR("Controller does not support Multi ADV");
+        return BTM_ERR_PROCESSING;
+    }
+
+    btm_ble_update_dmt_flag_bits(&p_data->flag, btm_cb.btm_inq_vars.connectable_mode,
+                                        btm_cb.btm_inq_vars.discoverable_mode);
+
+    BTM_TRACE_EVENT("BTM_BleCfgAdvInstData called with inst_id:%d", inst_id);
+    if (inst_id > BTM_BLE_MULTI_ADV_MAX || inst_id == BTM_BLE_MULTI_ADV_DEFAULT_STD)
+        return BTM_ILLEGAL_VALUE;
+
+    memset(param, 0, BTM_BLE_MULTI_ADV_WRITE_DATA_LEN);
+
+    UINT8_TO_STREAM(pp, sub_code);
+    p_len = pp ++;
+    btm_ble_build_adv_data(&data_mask, &pp, p_data);
+    *p_len = (UINT8)(pp - param - 2);
+    UINT8_TO_STREAM(pp_temp, inst_id);
+
+    if ((rt = BTM_VendorSpecificCommand (HCI_BLE_MULTI_ADV_OCF,
+                                    (UINT8)BTM_BLE_MULTI_ADV_WRITE_DATA_LEN,
+                                    param,
+                                    btm_ble_multi_adv_vsc_cmpl_cback))
+                                     == BTM_CMD_STARTED)
+    {
+        btm_ble_multi_adv_enq_op_q(sub_code, inst_id, BTM_BLE_MULTI_ADV_DATA_EVT);
+    }
+    return rt;
+}
+
+/*******************************************************************************
+**
+** Function         BTM_BleDisableAdvInstance
+**
+** Description      This function disables a Multi-ADV instance.
+**
+** Parameters       inst_id: adv instance ID
+**
+** Returns          status
+**
+*******************************************************************************/
+tBTM_STATUS BTM_BleDisableAdvInstance (UINT8 inst_id)
+{
+     tBTM_STATUS rt = BTM_ILLEGAL_VALUE;
+     tBTM_BLE_VSC_CB cmn_ble_vsc_cb;
+
+     BTM_TRACE_EVENT("BTM_BleDisableAdvInstance with inst_id:%d", inst_id);
+
+     BTM_BleGetVendorCapabilities(&cmn_ble_vsc_cb);
+
+     if (0 == cmn_ble_vsc_cb.adv_inst_max)
+     {
+         BTM_TRACE_ERROR("Controller does not support Multi ADV");
+         return BTM_ERR_PROCESSING;
+     }
+
+     if (inst_id < BTM_BleMaxMultiAdvInstanceCount() &&
+         inst_id != BTM_BLE_MULTI_ADV_DEFAULT_STD)
+     {
+         if ((rt = btm_ble_enable_multi_adv(FALSE, inst_id, BTM_BLE_MULTI_ADV_DISABLE_EVT))
+            == BTM_CMD_STARTED)
+         {
+            btm_ble_multi_adv_configure_rpa(&btm_multi_adv_cb.p_adv_inst[inst_id - 1]);
+            alarm_cancel(btm_multi_adv_cb.p_adv_inst[inst_id - 1].adv_raddr_timer);
+            btm_multi_adv_cb.p_adv_inst[inst_id - 1].in_use = FALSE;
+         }
+     }
+    return rt;
+}
+/*******************************************************************************
+**
+** Function         btm_ble_multi_adv_vse_cback
+**
+** Description      VSE callback for multi adv events.
+**
+** Returns
+**
+*******************************************************************************/
+void btm_ble_multi_adv_vse_cback(UINT8 len, UINT8 *p)
+{
+    UINT8   sub_event;
+    UINT8   adv_inst, idx;
+    UINT16  conn_handle;
+
+    /* Check if this is a BLE RSSI vendor specific event */
+    STREAM_TO_UINT8(sub_event, p);
+    len--;
+
+    BTM_TRACE_EVENT("btm_ble_multi_adv_vse_cback called with event:%d", sub_event);
+    if ((sub_event == HCI_VSE_SUBCODE_BLE_MULTI_ADV_ST_CHG) && (len >= 4))
+    {
+        STREAM_TO_UINT8(adv_inst, p);
+        ++p;
+        STREAM_TO_UINT16(conn_handle, p);
+
+        if ((idx = btm_handle_to_acl_index(conn_handle)) != MAX_L2CAP_LINKS)
+        {
+#if (defined BLE_PRIVACY_SPT && BLE_PRIVACY_SPT == TRUE)
+            if (btm_cb.ble_ctr_cb.privacy_mode != BTM_PRIVACY_NONE &&
+                adv_inst <= BTM_BLE_MULTI_ADV_MAX && adv_inst !=  BTM_BLE_MULTI_ADV_DEFAULT_STD)
+            {
+                memcpy(btm_cb.acl_db[idx].conn_addr, btm_multi_adv_cb.p_adv_inst[adv_inst - 1].rpa,
+                                BD_ADDR_LEN);
+            }
+#endif
+        }
+
+        if (adv_inst < BTM_BleMaxMultiAdvInstanceCount() &&
+            adv_inst !=  BTM_BLE_MULTI_ADV_DEFAULT_STD)
+        {
+            BTM_TRACE_EVENT("btm_ble_multi_adv_reenable called");
+            btm_ble_multi_adv_reenable(adv_inst);
+        }
+        /* re-enable connectibility */
+        else if (adv_inst == BTM_BLE_MULTI_ADV_DEFAULT_STD)
+        {
+            if (btm_cb.ble_ctr_cb.inq_var.connectable_mode == BTM_BLE_CONNECTABLE)
+            {
+                btm_ble_set_connectability ( btm_cb.ble_ctr_cb.inq_var.connectable_mode );
+            }
+        }
+
+    }
+
+}
+/*******************************************************************************
+**
+** Function         btm_ble_multi_adv_init
+**
+** Description      This function initialize the multi adv control block.
+**
+** Parameters       None
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_ble_multi_adv_init()
+{
+    UINT8 i = 0;
+    memset(&btm_multi_adv_cb, 0, sizeof(tBTM_BLE_MULTI_ADV_CB));
+    memset (&btm_multi_adv_idx_q,0, sizeof (tBTM_BLE_MULTI_ADV_INST_IDX_Q));
+    btm_multi_adv_idx_q.front = -1;
+    btm_multi_adv_idx_q.rear = -1;
+
+    if (btm_cb.cmn_ble_vsc_cb.adv_inst_max > 0) {
+        btm_multi_adv_cb.p_adv_inst = osi_calloc(sizeof(tBTM_BLE_MULTI_ADV_INST) *
+                                                 (btm_cb.cmn_ble_vsc_cb.adv_inst_max));
+
+        btm_multi_adv_cb.op_q.p_sub_code = osi_calloc(sizeof(UINT8) *
+                                                      (btm_cb.cmn_ble_vsc_cb.adv_inst_max));
+
+        btm_multi_adv_cb.op_q.p_inst_id = osi_calloc(sizeof(UINT8) *
+                                                     (btm_cb.cmn_ble_vsc_cb.adv_inst_max));
+    }
+
+    /* Initialize adv instance indices and IDs. */
+    for (i = 0; i < btm_cb.cmn_ble_vsc_cb.adv_inst_max; i++) {
+        btm_multi_adv_cb.p_adv_inst[i].index = i;
+        btm_multi_adv_cb.p_adv_inst[i].inst_id = i + 1;
+        btm_multi_adv_cb.p_adv_inst[i].adv_raddr_timer =
+            alarm_new("btm_ble.adv_raddr_timer");
+    }
+
+    BTM_RegisterForVSEvents(btm_ble_multi_adv_vse_cback, TRUE);
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_multi_adv_cleanup
+**
+** Description      This function cleans up multi adv control block.
+**
+** Parameters
+** Returns          void
+**
+*******************************************************************************/
+void btm_ble_multi_adv_cleanup(void)
+{
+    if (btm_multi_adv_cb.p_adv_inst) {
+        for (size_t i = 0; i < btm_cb.cmn_ble_vsc_cb.adv_inst_max; i++) {
+            alarm_free(btm_multi_adv_cb.p_adv_inst[i].adv_raddr_timer);
+        }
+        osi_free_and_reset((void **)&btm_multi_adv_cb.p_adv_inst);
+    }
+
+    osi_free_and_reset((void **)&btm_multi_adv_cb.op_q.p_sub_code);
+    osi_free_and_reset((void **)&btm_multi_adv_cb.op_q.p_inst_id);
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_multi_adv_get_ref
+**
+** Description      This function obtains the reference pointer for the instance ID provided
+**
+** Parameters       inst_id - Instance ID
+**
+** Returns          void*
+**
+*******************************************************************************/
+void* btm_ble_multi_adv_get_ref(UINT8 inst_id)
+{
+    tBTM_BLE_MULTI_ADV_INST *p_inst = NULL;
+
+    if (inst_id < BTM_BleMaxMultiAdvInstanceCount())
+    {
+        p_inst = &btm_multi_adv_cb.p_adv_inst[inst_id - 1];
+        if (NULL != p_inst)
+            return p_inst->p_ref;
+    }
+
+    return NULL;
+}
+#endif
+
diff --git a/rtkbt/code/bt/stack/btm/btm_ble_privacy.c b/rtkbt/code/bt/stack/btm/btm_ble_privacy.c
new file mode 100755
index 0000000..c8fe541
--- /dev/null
+++ b/rtkbt/code/bt/stack/btm/btm_ble_privacy.c
@@ -0,0 +1,1032 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains functions for BLE controller based privacy.
+ *
+ ******************************************************************************/
+#include <string.h>
+#include "bt_target.h"
+
+#if (BLE_INCLUDED == TRUE && BLE_PRIVACY_SPT == TRUE)
+#include "bt_types.h"
+#include "hcimsgs.h"
+#include "btu.h"
+#include "vendor_hcidefs.h"
+#include "btm_int.h"
+#include "device/include/controller.h"
+
+/* RPA offload VSC specifics */
+#define BTM_BLE_META_IRK_ENABLE         0x01
+#define BTM_BLE_META_ADD_IRK_ENTRY      0x02
+#define BTM_BLE_META_REMOVE_IRK_ENTRY   0x03
+#define BTM_BLE_META_CLEAR_IRK_LIST     0x04
+#define BTM_BLE_META_READ_IRK_ENTRY     0x05
+#define BTM_BLE_META_CS_RESOLVE_ADDR    0x00000001
+#define BTM_BLE_IRK_ENABLE_LEN          2
+
+#define BTM_BLE_META_ADD_IRK_LEN        24
+#define BTM_BLE_META_REMOVE_IRK_LEN     8
+#define BTM_BLE_META_CLEAR_IRK_LEN      1
+#define BTM_BLE_META_READ_IRK_LEN       2
+#define BTM_BLE_META_ADD_WL_ATTR_LEN    9
+
+/*******************************************************************************
+**         Functions implemented controller based privacy using Resolving List
+*******************************************************************************/
+/*******************************************************************************
+**
+** Function         btm_ble_enq_resolving_list_pending
+**
+** Description      add target address into resolving pending operation queue
+**
+** Parameters       target_bda: target device address
+**                  add_entry: TRUE for add entry, FALSE for remove entry
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_ble_enq_resolving_list_pending(BD_ADDR pseudo_bda, UINT8 op_code)
+{
+    tBTM_BLE_RESOLVE_Q *p_q = &btm_cb.ble_ctr_cb.resolving_list_pend_q;
+
+    memcpy(p_q->resolve_q_random_pseudo[p_q->q_next], pseudo_bda, BD_ADDR_LEN);
+    p_q->resolve_q_action[p_q->q_next] = op_code;
+    p_q->q_next ++;
+    p_q->q_next %= controller_get_interface()->get_ble_resolving_list_max_size();
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_brcm_find_resolving_pending_entry
+**
+** Description      check to see if the action is in pending list
+**
+** Parameters       TRUE: action pending;
+**                  FALSE: new action
+**
+** Returns          void
+**
+*******************************************************************************/
+BOOLEAN btm_ble_brcm_find_resolving_pending_entry(BD_ADDR pseudo_addr, UINT8 action)
+{
+    tBTM_BLE_RESOLVE_Q *p_q = &btm_cb.ble_ctr_cb.resolving_list_pend_q;
+
+    for (UINT8 i = p_q->q_pending; i != p_q->q_next;)
+    {
+        if (memcmp(p_q->resolve_q_random_pseudo[i], pseudo_addr, BD_ADDR_LEN) == 0 &&
+            action == p_q->resolve_q_action[i])
+            return TRUE;
+
+        i ++;
+        i %= controller_get_interface()->get_ble_resolving_list_max_size();
+    }
+    return FALSE;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_deq_resolving_pending
+**
+** Description      dequeue target address from resolving pending operation queue
+**
+** Parameters       pseudo_addr: pseudo_addr device address
+**
+** Returns          void
+**
+*******************************************************************************/
+BOOLEAN btm_ble_deq_resolving_pending(BD_ADDR pseudo_addr)
+{
+    tBTM_BLE_RESOLVE_Q *p_q = &btm_cb.ble_ctr_cb.resolving_list_pend_q;
+
+    if (p_q->q_next != p_q->q_pending)
+    {
+        memcpy(pseudo_addr, p_q->resolve_q_random_pseudo[p_q->q_pending], BD_ADDR_LEN);
+        memset(p_q->resolve_q_random_pseudo[p_q->q_pending], 0, BD_ADDR_LEN);
+        p_q->q_pending ++;
+        p_q->q_pending %= controller_get_interface()->get_ble_resolving_list_max_size();
+        return TRUE;
+    }
+
+    return FALSE;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_clear_irk_index
+**
+** Description      clear IRK list index mask for availability
+**
+** Returns          none
+**
+*******************************************************************************/
+void btm_ble_clear_irk_index(UINT8 index)
+{
+    UINT8 byte;
+    UINT8 bit;
+
+    if (index < controller_get_interface()->get_ble_resolving_list_max_size())
+    {
+         byte = index / 8;
+         bit = index % 8;
+         btm_cb.ble_ctr_cb.irk_list_mask[byte] &= (~(1 << bit));
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_find_irk_index
+**
+** Description      find the first available IRK list index
+**
+** Returns          index from 0 ~ max (127 default)
+**
+*******************************************************************************/
+UINT8 btm_ble_find_irk_index(void)
+{
+    UINT8 i = 0;
+    UINT8 byte;
+    UINT8 bit;
+
+    while (i < controller_get_interface()->get_ble_resolving_list_max_size())
+    {
+        byte = i / 8;
+        bit = i % 8;
+
+        if ((btm_cb.ble_ctr_cb.irk_list_mask[byte] & (1 << bit)) == 0)
+        {
+            btm_cb.ble_ctr_cb.irk_list_mask[byte] |= (1 << bit);
+            return i;
+        }
+        i++;
+    }
+
+    BTM_TRACE_ERROR ("%s failed, list full", __func__);
+    return i;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_update_resolving_list
+**
+** Description      update resolving list entry in host maintained record
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_ble_update_resolving_list(BD_ADDR pseudo_bda, BOOLEAN add)
+{
+    tBTM_SEC_DEV_REC *p_dev_rec = btm_find_dev(pseudo_bda);
+    if (p_dev_rec == NULL)
+        return;
+
+    if (add)
+    {
+        p_dev_rec->ble.in_controller_list |= BTM_RESOLVING_LIST_BIT;
+        if (!controller_get_interface()->supports_ble_privacy())
+            p_dev_rec->ble.resolving_list_index = btm_ble_find_irk_index();
+    }
+    else
+    {
+        p_dev_rec->ble.in_controller_list &= ~BTM_RESOLVING_LIST_BIT;
+        if (!controller_get_interface()->supports_ble_privacy())
+        {
+           /* clear IRK list index mask */
+           btm_ble_clear_irk_index(p_dev_rec->ble.resolving_list_index);
+           p_dev_rec->ble.resolving_list_index = 0;
+        }
+    }
+}
+
+bool clear_resolving_list_bit(void *data, void *context)
+{
+    tBTM_SEC_DEV_REC *p_dev_rec = data;
+    p_dev_rec->ble.in_controller_list &= ~BTM_RESOLVING_LIST_BIT;
+    return true;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_clear_resolving_list_complete
+**
+** Description      This function is called when command complete for
+**                  clear resolving list
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_ble_clear_resolving_list_complete(UINT8 *p, UINT16 evt_len)
+{
+    UINT8 status = 0;
+    STREAM_TO_UINT8(status, p);
+
+    BTM_TRACE_DEBUG("%s status=%d", __func__, status);
+
+    if (status == HCI_SUCCESS)
+    {
+        if (evt_len >= 3)
+        {
+            /* VSC complete has one extra byte for op code and list size, skip it here */
+            p ++;
+
+            /* updated the available list size, and current list size */
+            uint8_t irk_list_sz_max = 0;
+            STREAM_TO_UINT8(irk_list_sz_max, p);
+
+            if (controller_get_interface()->get_ble_resolving_list_max_size() == 0)
+                btm_ble_resolving_list_init(irk_list_sz_max);
+
+            uint8_t irk_mask_size = (irk_list_sz_max % 8) ?
+                            (irk_list_sz_max / 8 + 1) : (irk_list_sz_max / 8);
+            memset(btm_cb.ble_ctr_cb.irk_list_mask, 0, irk_mask_size);
+        }
+
+        btm_cb.ble_ctr_cb.resolving_list_avail_size =
+            controller_get_interface()->get_ble_resolving_list_max_size();
+
+        BTM_TRACE_DEBUG("%s resolving_list_avail_size=%d",
+                        __func__, btm_cb.ble_ctr_cb.resolving_list_avail_size);
+
+        list_foreach(btm_cb.sec_dev_rec, clear_resolving_list_bit, NULL);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_add_resolving_list_entry_complete
+**
+** Description      This function is called when command complete for
+**                  add resolving list entry
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_ble_add_resolving_list_entry_complete(UINT8 *p, UINT16 evt_len)
+{
+    UINT8 status;
+    STREAM_TO_UINT8(status, p);
+
+    BTM_TRACE_DEBUG("%s status = %d", __func__, status);
+
+    BD_ADDR pseudo_bda;
+    if (!btm_ble_deq_resolving_pending(pseudo_bda))
+    {
+        BTM_TRACE_DEBUG("no pending resolving list operation");
+        return;
+    }
+
+    if (status == HCI_SUCCESS)
+    {
+        /* privacy 1.2 command complete does not have these extra byte */
+        if (evt_len > 2)
+        {
+            /* VSC complete has one extra byte for op code, skip it here */
+            p ++;
+            STREAM_TO_UINT8(btm_cb.ble_ctr_cb.resolving_list_avail_size, p);
+        }
+        else
+            btm_cb.ble_ctr_cb.resolving_list_avail_size --;
+    }
+    else if (status == HCI_ERR_MEMORY_FULL) /* BT_ERROR_CODE_MEMORY_CAPACITY_EXCEEDED  */
+    {
+        btm_cb.ble_ctr_cb.resolving_list_avail_size = 0;
+        BTM_TRACE_DEBUG("%s Resolving list Full ", __func__);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_remove_resolving_list_entry_complete
+**
+** Description      This function is called when command complete for
+**                  remove resolving list entry
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_ble_remove_resolving_list_entry_complete(UINT8 *p, UINT16 evt_len)
+{
+    BD_ADDR pseudo_bda;
+    UINT8 status;
+
+    STREAM_TO_UINT8(status, p);
+
+    BTM_TRACE_DEBUG("%s status = %d", __func__, status);
+
+    if (!btm_ble_deq_resolving_pending(pseudo_bda))
+    {
+        BTM_TRACE_ERROR("%s no pending resolving list operation", __func__);
+        return;
+    }
+
+    if (status == HCI_SUCCESS)
+    {
+        /* proprietary: spec does not have these extra bytes */
+        if (evt_len > 2)
+        {
+            p ++; /* skip opcode */
+            STREAM_TO_UINT8(btm_cb.ble_ctr_cb.resolving_list_avail_size, p);
+        }
+        else
+            btm_cb.ble_ctr_cb.resolving_list_avail_size++;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_read_resolving_list_entry_complete
+**
+** Description      This function is called when command complete for
+**                  remove resolving list entry
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_ble_read_resolving_list_entry_complete(UINT8 *p, UINT16 evt_len)
+{
+    UINT8           status, rra_type = BTM_BLE_ADDR_PSEUDO;
+    BD_ADDR         rra, pseudo_bda;
+
+    STREAM_TO_UINT8  (status, p);
+
+    BTM_TRACE_DEBUG("%s status = %d", __func__, status);
+
+    if (!btm_ble_deq_resolving_pending(pseudo_bda))
+    {
+        BTM_TRACE_ERROR("no pending resolving list operation");
+        return;
+    }
+
+    if (status == HCI_SUCCESS)
+    {
+        /* proprietary spec has extra bytes */
+        if (evt_len > 8)
+        {
+            p += (2 + 16 + 1 + 6); /* skip subcode, index, IRK value, address type, identity addr type */
+            STREAM_TO_BDADDR(rra, p);
+
+            BTM_TRACE_ERROR("%s peer_addr: %02x:%02x:%02x:%02x:%02x:%02x",
+                            __func__, rra[0], rra[1], rra[2], rra[3], rra[4], rra[5]);
+        }
+        else
+        {
+           STREAM_TO_BDADDR(rra, p);
+        }
+        btm_ble_refresh_peer_resolvable_private_addr(pseudo_bda, rra, rra_type);
+   }
+}
+/*******************************************************************************
+                VSC that implement controller based privacy
+********************************************************************************/
+/*******************************************************************************
+**
+** Function         btm_ble_resolving_list_vsc_op_cmpl
+**
+** Description      IRK operation VSC complete handler
+**
+** Parameters
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_ble_resolving_list_vsc_op_cmpl (tBTM_VSC_CMPL *p_params)
+{
+    UINT8  *p = p_params->p_param_buf, op_subcode;
+    UINT16  evt_len = p_params->param_len;
+
+    op_subcode   = *(p + 1);
+
+    BTM_TRACE_DEBUG("%s op_subcode = %d", __func__, op_subcode);
+
+    if (op_subcode == BTM_BLE_META_CLEAR_IRK_LIST)
+    {
+        btm_ble_clear_resolving_list_complete(p, evt_len);
+    }
+    else if (op_subcode == BTM_BLE_META_ADD_IRK_ENTRY)
+    {
+       btm_ble_add_resolving_list_entry_complete(p, evt_len);
+    }
+    else if (op_subcode == BTM_BLE_META_REMOVE_IRK_ENTRY)
+    {
+        btm_ble_remove_resolving_list_entry_complete(p, evt_len);
+    }
+    else if (op_subcode == BTM_BLE_META_READ_IRK_ENTRY)
+    {
+         btm_ble_read_resolving_list_entry_complete(p, evt_len);
+    }
+    else if (op_subcode == BTM_BLE_META_IRK_ENABLE)
+    {
+        /* RPA offloading enable/disabled */
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_remove_resolving_list_entry
+**
+** Description      This function to remove an IRK entry from the list
+**
+** Parameters       ble_addr_type: address type
+**                  ble_addr: LE adddress
+**
+** Returns          status
+**
+*******************************************************************************/
+tBTM_STATUS btm_ble_remove_resolving_list_entry(tBTM_SEC_DEV_REC *p_dev_rec)
+{
+    /* if controller does not support RPA offloading or privacy 1.2, skip */
+    if (controller_get_interface()->get_ble_resolving_list_max_size() == 0)
+        return BTM_WRONG_MODE;
+
+    tBTM_STATUS st = BTM_NO_RESOURCES;
+    if (controller_get_interface()->supports_ble_privacy())
+    {
+        if (btsnd_hcic_ble_rm_device_resolving_list(p_dev_rec->ble.static_addr_type,
+                                                    p_dev_rec->ble.static_addr))
+            st =  BTM_CMD_STARTED;
+    }
+    else
+    {
+        UINT8 param[20]= {0};
+        UINT8 *p = param;
+
+        UINT8_TO_STREAM(p, BTM_BLE_META_REMOVE_IRK_ENTRY);
+        UINT8_TO_STREAM(p, p_dev_rec->ble.static_addr_type);
+        BDADDR_TO_STREAM(p, p_dev_rec->ble.static_addr);
+
+        st = BTM_VendorSpecificCommand(HCI_VENDOR_BLE_RPA_VSC,
+                                       BTM_BLE_META_REMOVE_IRK_LEN,
+                                       param,
+                                       btm_ble_resolving_list_vsc_op_cmpl);
+    }
+
+    if (st == BTM_CMD_STARTED)
+        btm_ble_enq_resolving_list_pending( p_dev_rec->bd_addr, BTM_BLE_META_REMOVE_IRK_ENTRY);
+
+    return st;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_clear_resolving_list
+**
+** Description      This function clears the resolving  list
+**
+** Parameters       None.
+**
+** Returns          status
+**
+*******************************************************************************/
+tBTM_STATUS btm_ble_clear_resolving_list(void)
+{
+    tBTM_STATUS st = BTM_NO_RESOURCES;
+
+    if (controller_get_interface()->supports_ble_privacy())
+    {
+        if (btsnd_hcic_ble_clear_resolving_list())
+            st =  BTM_SUCCESS;
+    }
+    else
+    {
+        UINT8 param[20] = {0};
+        UINT8 *p = param;
+
+        UINT8_TO_STREAM(p, BTM_BLE_META_CLEAR_IRK_LIST);
+        st = BTM_VendorSpecificCommand (HCI_VENDOR_BLE_RPA_VSC,
+                                        BTM_BLE_META_CLEAR_IRK_LEN,
+                                        param,
+                                        btm_ble_resolving_list_vsc_op_cmpl);
+    }
+
+    return st;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_read_resolving_list_entry
+**
+** Description      This function read an IRK entry by index
+**
+** Parameters       entry index.
+**
+** Returns          status
+**
+*******************************************************************************/
+tBTM_STATUS btm_ble_read_resolving_list_entry(tBTM_SEC_DEV_REC *p_dev_rec)
+{
+    tBTM_STATUS st = BTM_NO_RESOURCES;
+
+    if (!(p_dev_rec->ble.in_controller_list & BTM_RESOLVING_LIST_BIT))
+        return BTM_WRONG_MODE;
+
+    if (controller_get_interface()->supports_ble_privacy())
+    {
+        if (btsnd_hcic_ble_read_resolvable_addr_peer(p_dev_rec->ble.static_addr_type,
+                                                     p_dev_rec->ble.static_addr))
+            st =  BTM_CMD_STARTED;
+    }
+    else
+    {
+        UINT8 param[20] = {0};
+        UINT8 *p = param;
+
+        UINT8_TO_STREAM(p, BTM_BLE_META_READ_IRK_ENTRY);
+        UINT8_TO_STREAM(p, p_dev_rec->ble.resolving_list_index);
+
+        st = BTM_VendorSpecificCommand (HCI_VENDOR_BLE_RPA_VSC,
+                                        BTM_BLE_META_READ_IRK_LEN,
+                                        param,
+                                        btm_ble_resolving_list_vsc_op_cmpl);
+    }
+
+    if (st == BTM_CMD_STARTED)
+        btm_ble_enq_resolving_list_pending(p_dev_rec->bd_addr,
+                                           BTM_BLE_META_READ_IRK_ENTRY);
+
+    return st;
+}
+
+
+/*******************************************************************************
+**
+** Function         btm_ble_suspend_resolving_list_activity
+**
+** Description      This function suspends all resolving list activity, including
+**                  scan, initiating, and advertising, if resolving list is being
+**                  enabled.
+**
+** Parameters
+**
+** Returns          TRUE if suspended; FALSE otherwise
+**
+*******************************************************************************/
+BOOLEAN btm_ble_suspend_resolving_list_activity(void)
+{
+    tBTM_BLE_CB *p_ble_cb = &btm_cb.ble_ctr_cb;
+
+    /* if resolving list is not enabled, do not need to terminate any activity */
+    /* if asking for stop all activity */
+    /* if already suspended */
+    if (p_ble_cb->suspended_rl_state != BTM_BLE_RL_IDLE)
+        return TRUE;
+
+    /* direct connection active, wait until it completed */
+    if (btm_ble_get_conn_st() == BLE_DIR_CONN)
+    {
+        BTM_TRACE_ERROR("resolving list can not be edited, EnQ now");
+        return FALSE;
+    }
+
+    p_ble_cb->suspended_rl_state = BTM_BLE_RL_IDLE;
+
+    if (p_ble_cb->inq_var.adv_mode == BTM_BLE_ADV_ENABLE)
+    {
+        btm_ble_stop_adv();
+        p_ble_cb->suspended_rl_state |= BTM_BLE_RL_ADV;
+    }
+
+    if (BTM_BLE_IS_SCAN_ACTIVE(p_ble_cb->scan_activity))
+    {
+        btm_ble_stop_scan();
+        p_ble_cb->suspended_rl_state |= BTM_BLE_RL_SCAN;
+    }
+
+    if (btm_ble_suspend_bg_conn())
+        p_ble_cb->suspended_rl_state |= BTM_BLE_RL_INIT;
+
+    return TRUE;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_resume_resolving_list_activity
+**
+** Description      This function resumes the resolving list activity, including
+**                  scanning, initiating, and advertising, if any of these
+**                  activities has been suspended earlier.
+**
+** Returns          none
+**
+*******************************************************************************/
+void btm_ble_resume_resolving_list_activity(void)
+{
+    tBTM_BLE_CB *p_ble_cb = &btm_cb.ble_ctr_cb;
+
+    if (p_ble_cb->suspended_rl_state & BTM_BLE_RL_ADV)
+        btm_ble_start_adv();
+
+    if (p_ble_cb->suspended_rl_state & BTM_BLE_RL_SCAN)
+        btm_ble_start_scan();
+
+    if  (p_ble_cb->suspended_rl_state & BTM_BLE_RL_INIT)
+        btm_ble_resume_bg_conn();
+
+    p_ble_cb->suspended_rl_state = BTM_BLE_RL_IDLE;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_vendor_enable_irk_feature
+**
+** Description      This function is called to enable or disable the RRA
+**                  offloading feature.
+**
+** Parameters       enable: enable or disable the RRA offloading feature
+**
+** Returns          BTM_SUCCESS if successful
+**
+*******************************************************************************/
+tBTM_STATUS btm_ble_vendor_enable_irk_feature(BOOLEAN enable)
+{
+    UINT8           param[20], *p;
+    tBTM_STATUS     st = BTM_MODE_UNSUPPORTED;
+
+    p = param;
+    memset(param, 0, 20);
+
+    /* select feature based on control block settings */
+    UINT8_TO_STREAM(p, BTM_BLE_META_IRK_ENABLE);
+    UINT8_TO_STREAM(p, enable ? 0x01 : 0x00);
+
+    st = BTM_VendorSpecificCommand (HCI_VENDOR_BLE_RPA_VSC, BTM_BLE_IRK_ENABLE_LEN,
+                                    param, btm_ble_resolving_list_vsc_op_cmpl);
+
+    return st;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_exe_disable_resolving_list
+**
+** Description      execute resolving list disable
+**
+** Returns          none
+**
+*******************************************************************************/
+BOOLEAN btm_ble_exe_disable_resolving_list(void)
+{
+    if (!btm_ble_suspend_resolving_list_activity())
+        return FALSE;
+
+    if (!controller_get_interface()->supports_ble_privacy())
+        btm_ble_vendor_enable_irk_feature(FALSE);
+    else
+        btsnd_hcic_ble_set_addr_resolution_enable(FALSE);
+
+    return TRUE;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_exe_enable_resolving_list
+**
+** Description      enable LE resolve address list
+**
+** Returns          none
+**
+*******************************************************************************/
+void btm_ble_exe_enable_resolving_list(void)
+{
+    if (!btm_ble_suspend_resolving_list_activity())
+        return;
+
+    if (!controller_get_interface()->supports_ble_privacy())
+        btm_ble_vendor_enable_irk_feature(TRUE);
+    else
+        btsnd_hcic_ble_set_addr_resolution_enable(TRUE);
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_disable_resolving_list
+**
+** Description      Disable LE Address resolution
+**
+** Returns          none
+**
+*******************************************************************************/
+BOOLEAN btm_ble_disable_resolving_list(UINT8 rl_mask, BOOLEAN to_resume )
+{
+    UINT8 rl_state = btm_cb.ble_ctr_cb.rl_state;
+
+    /* if controller does not support RPA offloading or privacy 1.2, skip */
+    if (controller_get_interface()->get_ble_resolving_list_max_size()== 0)
+        return FALSE;
+
+    btm_cb.ble_ctr_cb.rl_state &= ~rl_mask;
+
+    if (rl_state != BTM_BLE_RL_IDLE && btm_cb.ble_ctr_cb.rl_state == BTM_BLE_RL_IDLE)
+    {
+        if (btm_ble_exe_disable_resolving_list())
+        {
+            if (to_resume)
+                btm_ble_resume_resolving_list_activity();
+
+            return TRUE;
+        }
+        else
+            return FALSE;
+    }
+
+    return TRUE;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_resolving_list_load_dev
+**
+** Description      This function add a device which is using RPA into white list
+**
+** Parameters       pointer to device security record
+**
+** Returns          TRUE if device added, otherwise falase.
+**
+*******************************************************************************/
+BOOLEAN btm_ble_resolving_list_load_dev(tBTM_SEC_DEV_REC *p_dev_rec)
+{
+    BOOLEAN rt = FALSE;
+    UINT8 rl_mask = btm_cb.ble_ctr_cb.rl_state;
+
+    BTM_TRACE_DEBUG("%s btm_cb.ble_ctr_cb.privacy_mode = %d", __func__,
+                                btm_cb.ble_ctr_cb.privacy_mode);
+
+    /* if controller does not support RPA offloading or privacy 1.2, skip */
+    if (controller_get_interface()->get_ble_resolving_list_max_size() == 0)
+        return FALSE;
+
+    BTM_TRACE_DEBUG("%s btm_cb.ble_ctr_cb.privacy_mode = %d",
+                    __func__, btm_cb.ble_ctr_cb.privacy_mode);
+
+    /* only add RPA enabled device into resolving list */
+    if (p_dev_rec != NULL && /* RPA is being used and PID is known */
+       ((p_dev_rec->ble.key_type & BTM_LE_KEY_PID) != 0 ||
+       (p_dev_rec->ble.key_type & BTM_LE_KEY_LID) != 0))
+    {
+        if (!(p_dev_rec->ble.in_controller_list & BTM_RESOLVING_LIST_BIT) &&
+            btm_ble_brcm_find_resolving_pending_entry(p_dev_rec->bd_addr,
+                                                      BTM_BLE_META_ADD_IRK_ENTRY) == FALSE)
+        {
+            if (btm_cb.ble_ctr_cb.resolving_list_avail_size > 0)
+            {
+                if (rl_mask)
+                {
+                    if (!btm_ble_disable_resolving_list (rl_mask, FALSE))
+                        return FALSE;
+                }
+
+                btm_ble_update_resolving_list(p_dev_rec->bd_addr, TRUE);
+                if (controller_get_interface()->supports_ble_privacy())
+                {
+                    BD_ADDR dummy_bda = {0};
+                    UINT8 *peer_irk = p_dev_rec->ble.keys.irk;
+                    UINT8 *local_irk = btm_cb.devcb.id_keys.irk;
+
+                    if (memcmp(p_dev_rec->ble.static_addr, dummy_bda, BD_ADDR_LEN) == 0)
+                    {
+                        memcpy(p_dev_rec->ble.static_addr, p_dev_rec->bd_addr, BD_ADDR_LEN);
+                        p_dev_rec->ble.static_addr_type = p_dev_rec->ble.ble_addr_type;
+                    }
+
+                    BTM_TRACE_DEBUG("%s:adding device to controller resolving list", __func__);
+                    // use identical IRK for now
+                    rt = btsnd_hcic_ble_add_device_resolving_list(p_dev_rec->ble.static_addr_type,
+                              p_dev_rec->ble.static_addr, peer_irk, local_irk);
+                }
+                else
+                {
+                    UINT8 param[40] = {0};
+                    UINT8 *p = param;
+
+                    UINT8_TO_STREAM(p, BTM_BLE_META_ADD_IRK_ENTRY);
+                    ARRAY_TO_STREAM(p, p_dev_rec->ble.keys.irk, BT_OCTET16_LEN);
+                    UINT8_TO_STREAM(p, p_dev_rec->ble.static_addr_type);
+                    BDADDR_TO_STREAM(p,p_dev_rec->ble.static_addr);
+
+                    if (BTM_VendorSpecificCommand (HCI_VENDOR_BLE_RPA_VSC,
+                                                   BTM_BLE_META_ADD_IRK_LEN,
+                                                   param,
+                                                   btm_ble_resolving_list_vsc_op_cmpl)
+                                                   == BTM_CMD_STARTED)
+                        rt = TRUE;
+                }
+
+               if (rt)
+                   btm_ble_enq_resolving_list_pending(p_dev_rec->bd_addr,
+                                                      BTM_BLE_META_ADD_IRK_ENTRY);
+
+                /* if resolving list has been turned on, re-enable it */
+                if (rl_mask)
+                    btm_ble_enable_resolving_list(rl_mask);
+                else
+                    btm_ble_enable_resolving_list(BTM_BLE_RL_INIT);
+            }
+        }
+        else
+        {
+            BTM_TRACE_ERROR("Device already in Resolving list");
+            rt = TRUE;
+        }
+    }
+    else
+    {
+        BTM_TRACE_DEBUG("Device not a RPA enabled device");
+    }
+    return rt;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_resolving_list_remove_dev
+**
+** Description      This function removes the device from resolving list
+**
+** Parameters
+**
+** Returns          status
+**
+*******************************************************************************/
+void btm_ble_resolving_list_remove_dev(tBTM_SEC_DEV_REC *p_dev_rec)
+{
+    UINT8 rl_mask = btm_cb.ble_ctr_cb.rl_state;
+
+    BTM_TRACE_EVENT ("%s", __func__);
+    if (rl_mask)
+    {
+        if (!btm_ble_disable_resolving_list (rl_mask, FALSE))
+             return;
+    }
+
+    if ((p_dev_rec->ble.in_controller_list & BTM_RESOLVING_LIST_BIT) &&
+        btm_ble_brcm_find_resolving_pending_entry(p_dev_rec->bd_addr,
+                                                  BTM_BLE_META_REMOVE_IRK_ENTRY) == FALSE)
+    {
+        btm_ble_update_resolving_list( p_dev_rec->bd_addr, FALSE);
+        btm_ble_remove_resolving_list_entry(p_dev_rec);
+    }
+    else
+    {
+        BTM_TRACE_DEBUG("Device not in resolving list");
+    }
+
+    /* if resolving list has been turned on, re-enable it */
+    if (rl_mask)
+        btm_ble_enable_resolving_list(rl_mask);
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_enable_resolving_list
+**
+** Description      enable LE resolve address list
+**
+** Returns          none
+**
+*******************************************************************************/
+void btm_ble_enable_resolving_list(UINT8 rl_mask)
+{
+    UINT8 rl_state = btm_cb.ble_ctr_cb.rl_state;
+
+    btm_cb.ble_ctr_cb.rl_state |= rl_mask;
+    if (rl_state == BTM_BLE_RL_IDLE &&
+        btm_cb.ble_ctr_cb.rl_state != BTM_BLE_RL_IDLE &&
+        controller_get_interface()->get_ble_resolving_list_max_size() != 0)
+    {
+        btm_ble_exe_enable_resolving_list();
+        btm_ble_resume_resolving_list_activity();
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_resolving_list_empty
+**
+** Description      check to see if resoving list is empty or not
+**
+** Returns          TRUE: empty; FALSE non-empty
+**
+*******************************************************************************/
+BOOLEAN btm_ble_resolving_list_empty(void)
+{
+    return (controller_get_interface()->get_ble_resolving_list_max_size() ==
+            btm_cb.ble_ctr_cb.resolving_list_avail_size);
+}
+
+
+bool is_on_resolving_list(void *data, void *context)
+{
+    tBTM_SEC_DEV_REC *p_dev = data;
+    if ((p_dev->ble.in_controller_list & BTM_RESOLVING_LIST_BIT) &&
+        (p_dev->ble.in_controller_list & BTM_WHITE_LIST_BIT))
+        return false;
+
+    return true;
+}
+
+
+/*******************************************************************************
+**
+** Function         btm_ble_enable_resolving_list_for_platform
+**
+** Description      enable/disable resolving list feature depending on if any
+**                  resolving list is empty and whitelist is involoved in the
+**                  operation.
+**
+** Returns          none
+**
+*******************************************************************************/
+void btm_ble_enable_resolving_list_for_platform (UINT8 rl_mask)
+{
+    /* if controller does not support, skip */
+    if (controller_get_interface()->get_ble_resolving_list_max_size() == 0)
+        return;
+
+    if (btm_cb.ble_ctr_cb.wl_state == BTM_BLE_WL_IDLE)
+    {
+        if (controller_get_interface()->get_ble_resolving_list_max_size() >
+                                        btm_cb.ble_ctr_cb.resolving_list_avail_size)
+            btm_ble_enable_resolving_list(rl_mask);
+        else
+            btm_ble_disable_resolving_list(rl_mask, TRUE);
+        return;
+    }
+
+    list_node_t *n = list_foreach(btm_cb.sec_dev_rec, is_on_resolving_list, NULL);
+    if (n)
+        btm_ble_enable_resolving_list(rl_mask);
+    else
+        btm_ble_disable_resolving_list(rl_mask, TRUE);
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_resolving_list_init
+**
+** Description      Initialize resolving list in host stack
+**
+** Parameters       Max resolving list size
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_ble_resolving_list_init(UINT8 max_irk_list_sz)
+{
+    tBTM_BLE_RESOLVE_Q *p_q = &btm_cb.ble_ctr_cb.resolving_list_pend_q;
+    UINT8 irk_mask_size =  (max_irk_list_sz % 8) ?
+                           (max_irk_list_sz/8 + 1) : (max_irk_list_sz/8);
+
+    if (max_irk_list_sz > 0)
+    {
+        p_q->resolve_q_random_pseudo = (BD_ADDR *)osi_malloc(sizeof(BD_ADDR) * max_irk_list_sz);
+        p_q->resolve_q_action = (UINT8 *)osi_malloc(max_irk_list_sz);
+
+        /* RPA offloading feature */
+        if (btm_cb.ble_ctr_cb.irk_list_mask == NULL)
+            btm_cb.ble_ctr_cb.irk_list_mask = (UINT8 *)osi_malloc(irk_mask_size);
+
+        BTM_TRACE_DEBUG ("%s max_irk_list_sz = %d", __func__, max_irk_list_sz);
+    }
+
+    controller_get_interface()->set_ble_resolving_list_max_size(max_irk_list_sz);
+    btm_ble_clear_resolving_list();
+    btm_cb.ble_ctr_cb.resolving_list_avail_size = max_irk_list_sz;
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_resolving_list_cleanup
+**
+** Description      Cleanup resolving list dynamic memory
+**
+** Parameters
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_ble_resolving_list_cleanup(void)
+{
+    tBTM_BLE_RESOLVE_Q *p_q = &btm_cb.ble_ctr_cb.resolving_list_pend_q;
+
+    osi_free_and_reset((void **)&p_q->resolve_q_random_pseudo);
+    osi_free_and_reset((void **)&p_q->resolve_q_action);
+
+    controller_get_interface()->set_ble_resolving_list_max_size(0);
+
+    osi_free_and_reset((void **)&btm_cb.ble_ctr_cb.irk_list_mask);
+}
+#endif
diff --git a/rtkbt/code/bt/stack/btm/btm_dev.c b/rtkbt/code/bt/stack/btm/btm_dev.c
new file mode 100755
index 0000000..1d79caa
--- /dev/null
+++ b/rtkbt/code/bt/stack/btm/btm_dev.c
@@ -0,0 +1,610 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains functions for the Bluetooth Device Manager
+ *
+ ******************************************************************************/
+
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+#include <stddef.h>
+
+#include "bt_types.h"
+#include "device/include/controller.h"
+#include "bt_common.h"
+#include "hcimsgs.h"
+#include "btu.h"
+#include "btm_api.h"
+#include "btm_int.h"
+#include "hcidefs.h"
+#include "l2c_api.h"
+
+static tBTM_SEC_DEV_REC *btm_find_oldest_dev (void);
+
+/*******************************************************************************
+**
+** Function         BTM_SecAddDevice
+**
+** Description      Add/modify device.  This function will be normally called
+**                  during host startup to restore all required information
+**                  stored in the NVRAM.
+**
+** Parameters:      bd_addr          - BD address of the peer
+**                  dev_class        - Device Class
+**                  bd_name          - Name of the peer device.  NULL if unknown.
+**                  features         - Remote device's features (up to 3 pages). NULL if not known
+**                  trusted_mask     - Bitwise OR of services that do not
+**                                     require authorization. (array of UINT32)
+**                  link_key         - Connection link key. NULL if unknown.
+**
+** Returns          TRUE if added OK, else FALSE
+**
+*******************************************************************************/
+BOOLEAN BTM_SecAddDevice (BD_ADDR bd_addr, DEV_CLASS dev_class, BD_NAME bd_name,
+                          UINT8 *features, UINT32 trusted_mask[],
+                          LINK_KEY link_key, UINT8 key_type, tBTM_IO_CAP io_cap,
+                          UINT8 pin_length)
+{
+    tBTM_SEC_DEV_REC  *p_dev_rec;
+    int               i, j;
+    BOOLEAN           found = FALSE;
+
+    BTM_TRACE_API("%s: link key type:%x", __func__, key_type);
+    p_dev_rec = btm_find_dev (bd_addr);
+    if (!p_dev_rec)
+    {
+        if (list_length(btm_cb.sec_dev_rec) > BTM_SEC_MAX_DEVICE_RECORDS) {
+            BTM_TRACE_DEBUG("%s: Max devices reached!", __func__);
+            return FALSE;
+        }
+
+        BTM_TRACE_DEBUG ("%s: allocate a new dev rec", __func__);
+        p_dev_rec = osi_calloc(sizeof(tBTM_SEC_DEV_REC));
+        list_append(btm_cb.sec_dev_rec, p_dev_rec);
+
+        memcpy (p_dev_rec->bd_addr, bd_addr, BD_ADDR_LEN);
+        p_dev_rec->hci_handle = BTM_GetHCIConnHandle (bd_addr, BT_TRANSPORT_BR_EDR);
+
+#if BLE_INCLUDED == TRUE
+        /* use default value for background connection params */
+        /* update conn params, use default value for background connection params */
+        memset(&p_dev_rec->conn_params, 0xff, sizeof(tBTM_LE_CONN_PRAMS));
+#endif
+    }
+
+    p_dev_rec->bond_type = BOND_TYPE_UNKNOWN;           /* Default value */
+    p_dev_rec->timestamp = btm_cb.dev_rec_count++;
+
+    if (dev_class)
+        memcpy (p_dev_rec->dev_class, dev_class, DEV_CLASS_LEN);
+
+    memset(p_dev_rec->sec_bd_name, 0, sizeof(tBTM_BD_NAME));
+
+    if (bd_name && bd_name[0])
+    {
+        p_dev_rec->sec_flags |= BTM_SEC_NAME_KNOWN;
+        strlcpy ((char *)p_dev_rec->sec_bd_name,
+                 (char *)bd_name, BTM_MAX_REM_BD_NAME_LEN);
+    }
+
+    p_dev_rec->num_read_pages = 0;
+    if (features)
+    {
+        memcpy (p_dev_rec->features, features, sizeof (p_dev_rec->features));
+        for (i = HCI_EXT_FEATURES_PAGE_MAX; i >= 0; i--)
+        {
+            for (j = 0; j < HCI_FEATURE_BYTES_PER_PAGE; j++)
+            {
+                if (p_dev_rec->features[i][j] != 0)
+                {
+                    found = TRUE;
+                    break;
+                }
+            }
+            if (found)
+            {
+                p_dev_rec->num_read_pages = i + 1;
+                break;
+            }
+        }
+    }
+    else
+        memset (p_dev_rec->features, 0, sizeof (p_dev_rec->features));
+
+    BTM_SEC_COPY_TRUSTED_DEVICE(trusted_mask, p_dev_rec->trusted_mask);
+
+    if (link_key)
+    {
+        BTM_TRACE_EVENT ("%s: BDA: %02x:%02x:%02x:%02x:%02x:%02x", __func__,
+                          bd_addr[0], bd_addr[1], bd_addr[2],
+                          bd_addr[3], bd_addr[4], bd_addr[5]);
+        p_dev_rec->sec_flags |= BTM_SEC_LINK_KEY_KNOWN;
+        memcpy (p_dev_rec->link_key, link_key, LINK_KEY_LEN);
+        p_dev_rec->link_key_type = key_type;
+        p_dev_rec->pin_code_length = pin_length;
+
+        if (pin_length >= 16 ||
+            key_type == BTM_LKEY_TYPE_AUTH_COMB ||
+            key_type == BTM_LKEY_TYPE_AUTH_COMB_P_256) {
+            // Set the flag if the link key was made by using either a 16 digit
+            // pin or MITM.
+            p_dev_rec->sec_flags |= BTM_SEC_16_DIGIT_PIN_AUTHED | BTM_SEC_LINK_KEY_AUTHED;
+        }
+    }
+
+#if defined(BTIF_MIXED_MODE_INCLUDED) && (BTIF_MIXED_MODE_INCLUDED == TRUE)
+    if (key_type  < BTM_MAX_PRE_SM4_LKEY_TYPE)
+        p_dev_rec->sm4 = BTM_SM4_KNOWN;
+    else
+        p_dev_rec->sm4 = BTM_SM4_TRUE;
+#endif
+
+    p_dev_rec->rmt_io_caps = io_cap;
+    p_dev_rec->device_type |= BT_DEVICE_TYPE_BREDR;
+
+    return(TRUE);
+}
+
+
+/*******************************************************************************
+**
+** Function         BTM_SecDeleteDevice
+**
+** Description      Free resources associated with the device.
+**
+** Parameters:      bd_addr          - BD address of the peer
+**
+** Returns          TRUE if removed OK, FALSE if not found or ACL link is active
+**
+*******************************************************************************/
+BOOLEAN BTM_SecDeleteDevice (BD_ADDR bd_addr)
+{
+    tBTM_SEC_DEV_REC *p_dev_rec;
+
+    if (BTM_IsAclConnectionUp(bd_addr, BT_TRANSPORT_LE) ||
+        BTM_IsAclConnectionUp(bd_addr, BT_TRANSPORT_BR_EDR))
+    {
+        BTM_TRACE_WARNING("%s FAILED: Cannot Delete when connection is active", __func__);
+        return FALSE;
+    }
+
+    if ((p_dev_rec = btm_find_dev(bd_addr)) != NULL)
+    {
+        btm_sec_free_dev(p_dev_rec);
+        /* Tell controller to get rid of the link key, if it has one stored */
+        BTM_DeleteStoredLinkKey (p_dev_rec->bd_addr, NULL);
+    }
+
+    return TRUE;
+}
+
+/*******************************************************************************
+**
+** Function         BTM_SecReadDevName
+**
+** Description      Looks for the device name in the security database for the
+**                  specified BD address.
+**
+** Returns          Pointer to the name or NULL
+**
+*******************************************************************************/
+char *BTM_SecReadDevName (BD_ADDR bd_addr)
+{
+    char *p_name = NULL;
+    tBTM_SEC_DEV_REC *p_srec;
+
+    if ((p_srec = btm_find_dev(bd_addr)) != NULL)
+        p_name = (char *)p_srec->sec_bd_name;
+
+    return(p_name);
+}
+
+bool is_bd_addr_equal(void *data, void *context)
+{
+    tBTM_SEC_DEV_REC *p_dev_rec = data;
+    BD_ADDR *bd_addr = context;
+
+    if (!memcmp(p_dev_rec->bd_addr, bd_addr, BD_ADDR_LEN))
+        return false;
+
+    return true;
+}
+
+/*******************************************************************************
+**
+** Function         btm_sec_alloc_dev
+**
+** Description      Look for the record in the device database for the record
+**                  with specified address
+**
+** Returns          Pointer to the record or NULL
+**
+*******************************************************************************/
+tBTM_SEC_DEV_REC *btm_sec_alloc_dev (BD_ADDR bd_addr)
+{
+    tBTM_SEC_DEV_REC *p_dev_rec = NULL;
+    tBTM_INQ_INFO    *p_inq_info;
+    BTM_TRACE_EVENT ("btm_sec_alloc_dev");
+
+    if (list_length(btm_cb.sec_dev_rec) > BTM_SEC_MAX_DEVICE_RECORDS) {
+        p_dev_rec = btm_find_oldest_dev();
+    } else {
+        BTM_TRACE_DEBUG ("allocate a new dev rec");
+        p_dev_rec = osi_calloc(sizeof(tBTM_SEC_DEV_REC));
+        list_append(btm_cb.sec_dev_rec, p_dev_rec);
+    }
+
+    p_dev_rec->bond_type = BOND_TYPE_UNKNOWN;           /* Default value */
+    p_dev_rec->sec_flags = BTM_SEC_IN_USE;
+
+    /* Check with the BT manager if details about remote device are known */
+    /* outgoing connection */
+    if ((p_inq_info = BTM_InqDbRead(bd_addr)) != NULL)
+    {
+        memcpy (p_dev_rec->dev_class, p_inq_info->results.dev_class, DEV_CLASS_LEN);
+
+#if BLE_INCLUDED == TRUE
+        p_dev_rec->device_type = p_inq_info->results.device_type;
+        p_dev_rec->ble.ble_addr_type = p_inq_info->results.ble_addr_type;
+#endif
+    }
+    else if (!memcmp (bd_addr, btm_cb.connecting_bda, BD_ADDR_LEN))
+            memcpy (p_dev_rec->dev_class, btm_cb.connecting_dc, DEV_CLASS_LEN);
+
+#if BLE_INCLUDED == TRUE
+    /* update conn params, use default value for background connection params */
+    memset(&p_dev_rec->conn_params, 0xff, sizeof(tBTM_LE_CONN_PRAMS));
+#endif
+
+    memcpy (p_dev_rec->bd_addr, bd_addr, BD_ADDR_LEN);
+
+#if BLE_INCLUDED == TRUE
+    p_dev_rec->ble_hci_handle = BTM_GetHCIConnHandle (bd_addr, BT_TRANSPORT_LE);
+#endif
+    p_dev_rec->hci_handle = BTM_GetHCIConnHandle (bd_addr, BT_TRANSPORT_BR_EDR);
+    p_dev_rec->timestamp = btm_cb.dev_rec_count++;
+
+    return(p_dev_rec);
+}
+
+
+/*******************************************************************************
+**
+** Function         btm_sec_free_dev
+**
+** Description      Mark device record as not used
+**
+*******************************************************************************/
+void btm_sec_free_dev (tBTM_SEC_DEV_REC *p_dev_rec)
+{
+    p_dev_rec->bond_type = BOND_TYPE_UNKNOWN;
+    p_dev_rec->sec_flags = 0;
+
+#if BLE_INCLUDED == TRUE
+    /* Clear out any saved BLE keys */
+    btm_sec_clear_ble_keys (p_dev_rec);
+    /* clear the ble block */
+    memset(&p_dev_rec->ble, 0, sizeof(tBTM_SEC_BLE));
+#endif
+
+
+}
+
+/*******************************************************************************
+**
+** Function         btm_dev_support_switch
+**
+** Description      This function is called by the L2CAP to check if remote
+**                  device supports role switch
+**
+** Parameters:      bd_addr       - Address of the peer device
+**
+** Returns          TRUE if device is known and role switch is supported
+**
+*******************************************************************************/
+BOOLEAN btm_dev_support_switch (BD_ADDR bd_addr)
+{
+    tBTM_SEC_DEV_REC  *p_dev_rec;
+    UINT8   xx;
+    BOOLEAN feature_empty = TRUE;
+
+#if BTM_SCO_INCLUDED == TRUE
+    /* Role switch is not allowed if a SCO is up */
+    if (btm_is_sco_active_by_bdaddr(bd_addr))
+        return(FALSE);
+#endif
+    p_dev_rec = btm_find_dev (bd_addr);
+    if (p_dev_rec && controller_get_interface()->supports_master_slave_role_switch())
+    {
+        if (HCI_SWITCH_SUPPORTED(p_dev_rec->features[HCI_EXT_FEATURES_PAGE_0]))
+        {
+            BTM_TRACE_DEBUG("btm_dev_support_switch return TRUE (feature found)");
+            return (TRUE);
+        }
+
+        /* If the feature field is all zero, we never received them */
+        for (xx = 0 ; xx < BD_FEATURES_LEN ; xx++)
+        {
+            if (p_dev_rec->features[HCI_EXT_FEATURES_PAGE_0][xx] != 0x00)
+            {
+                feature_empty = FALSE; /* at least one is != 0 */
+                break;
+            }
+        }
+
+        /* If we don't know peer's capabilities, assume it supports Role-switch */
+        if (feature_empty)
+        {
+            BTM_TRACE_DEBUG("btm_dev_support_switch return TRUE (feature empty)");
+            return (TRUE);
+        }
+    }
+
+    BTM_TRACE_DEBUG("btm_dev_support_switch return FALSE");
+    return(FALSE);
+}
+
+bool is_handle_equal(void *data, void *context)
+{
+    tBTM_SEC_DEV_REC *p_dev_rec = data;
+    UINT16 *handle = context;
+
+    if (p_dev_rec->hci_handle == *handle
+#if BLE_INCLUDED == TRUE
+     || p_dev_rec->ble_hci_handle == *handle
+#endif
+     )
+        return false;
+
+    return true;
+}
+
+/*******************************************************************************
+**
+** Function         btm_find_dev_by_handle
+**
+** Description      Look for the record in the device database for the record
+**                  with specified handle
+**
+** Returns          Pointer to the record or NULL
+**
+*******************************************************************************/
+tBTM_SEC_DEV_REC *btm_find_dev_by_handle (UINT16 handle)
+{
+    list_node_t *n = list_foreach(btm_cb.sec_dev_rec, is_handle_equal, &handle);
+    if (n)
+        return list_node(n);
+
+    return NULL;
+}
+
+bool is_address_equal(void *data, void *context)
+{
+    tBTM_SEC_DEV_REC *p_dev_rec = data;
+    BD_ADDR *bd_addr = context;
+
+    if (!memcmp (p_dev_rec->bd_addr, *bd_addr, BD_ADDR_LEN))
+        return false;
+#if BLE_INCLUDED == TRUE
+    // If a LE random address is looking for device record
+    if (!memcmp(p_dev_rec->ble.pseudo_addr, *bd_addr, BD_ADDR_LEN))
+        return false;
+
+    if (btm_ble_addr_resolvable(*bd_addr, p_dev_rec))
+        return false;
+#endif
+    return true;
+}
+
+/*******************************************************************************
+**
+** Function         btm_find_dev
+**
+** Description      Look for the record in the device database for the record
+**                  with specified BD address
+**
+** Returns          Pointer to the record or NULL
+**
+*******************************************************************************/
+tBTM_SEC_DEV_REC *btm_find_dev(BD_ADDR bd_addr)
+{
+    if (!bd_addr)
+        return NULL;
+
+    list_node_t *n = list_foreach(btm_cb.sec_dev_rec, is_address_equal, bd_addr);
+    if (n)
+        return list_node(n);
+
+    return NULL;
+}
+
+/*******************************************************************************
+**
+** Function         btm_consolidate_dev
+5**
+** Description      combine security records if identified as same peer
+**
+** Returns          none
+**
+*******************************************************************************/
+void btm_consolidate_dev(tBTM_SEC_DEV_REC *p_target_rec)
+{
+#if BLE_INCLUDED == TRUE
+    tBTM_SEC_DEV_REC temp_rec = *p_target_rec;
+
+    BTM_TRACE_DEBUG("%s", __func__);
+
+    list_node_t *end = list_end(btm_cb.sec_dev_rec);
+    for (list_node_t *node = list_begin(btm_cb.sec_dev_rec); node != end; node = list_next(node)) {
+        tBTM_SEC_DEV_REC *p_dev_rec = list_node(node);
+
+        if (p_target_rec == p_dev_rec)
+            continue;
+
+        if (!memcmp (p_dev_rec->bd_addr, p_target_rec->bd_addr, BD_ADDR_LEN))
+        {
+            memcpy(p_target_rec, p_dev_rec, sizeof(tBTM_SEC_DEV_REC));
+            p_target_rec->ble = temp_rec.ble;
+            p_target_rec->ble_hci_handle = temp_rec.ble_hci_handle;
+            p_target_rec->enc_key_size = temp_rec.enc_key_size;
+            p_target_rec->conn_params = temp_rec.conn_params;
+            p_target_rec->device_type |= temp_rec.device_type;
+            p_target_rec->sec_flags |= temp_rec.sec_flags;
+
+            p_target_rec->new_encryption_key_is_p256 = temp_rec.new_encryption_key_is_p256;
+            p_target_rec->no_smp_on_br = temp_rec.no_smp_on_br;
+            p_target_rec->bond_type = temp_rec.bond_type;
+
+            /* remove the combined record */
+            list_remove(btm_cb.sec_dev_rec, p_dev_rec);
+
+            p_dev_rec->bond_type = BOND_TYPE_UNKNOWN;
+            break;
+        }
+
+        /* an RPA device entry is a duplicate of the target record */
+        if (btm_ble_addr_resolvable(p_dev_rec->bd_addr, p_target_rec))
+        {
+            if (memcmp(p_target_rec->ble.pseudo_addr, p_dev_rec->bd_addr, BD_ADDR_LEN) == 0)
+            {
+                p_target_rec->ble.ble_addr_type = p_dev_rec->ble.ble_addr_type;
+                p_target_rec->device_type |= p_dev_rec->device_type;
+
+                /* remove the combined record */
+                list_remove(btm_cb.sec_dev_rec, p_dev_rec);
+
+                p_dev_rec->bond_type = BOND_TYPE_UNKNOWN;
+            }
+            break;
+        }
+    }
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         btm_find_or_alloc_dev
+**
+** Description      Look for the record in the device database for the record
+**                  with specified BD address
+**
+** Returns          Pointer to the record or NULL
+**
+*******************************************************************************/
+tBTM_SEC_DEV_REC *btm_find_or_alloc_dev (BD_ADDR bd_addr)
+{
+    tBTM_SEC_DEV_REC *p_dev_rec;
+    BTM_TRACE_EVENT ("btm_find_or_alloc_dev");
+    if ((p_dev_rec = btm_find_dev (bd_addr)) == NULL)
+    {
+
+        /* Allocate a new device record or reuse the oldest one */
+        p_dev_rec = btm_sec_alloc_dev (bd_addr);
+    }
+    return(p_dev_rec);
+}
+
+/*******************************************************************************
+**
+** Function         btm_find_oldest_dev
+**
+** Description      Locates the oldest device in use. It first looks for
+**                  the oldest non-paired device.  If all devices are paired it
+**                  deletes the oldest paired device.
+**
+** Returns          Pointer to the record or NULL
+**
+*******************************************************************************/
+tBTM_SEC_DEV_REC *btm_find_oldest_dev (void)
+{
+    tBTM_SEC_DEV_REC *p_oldest = NULL;
+    UINT32       ot = 0xFFFFFFFF;
+    tBTM_SEC_DEV_REC *p_oldest_paired = NULL;
+    UINT32       ot_paired = 0xFFFFFFFF;
+
+    /* First look for the non-paired devices for the oldest entry */
+    list_node_t *end = list_end(btm_cb.sec_dev_rec);
+    for (list_node_t *node = list_begin(btm_cb.sec_dev_rec); node != end; node = list_next(node)) {
+        tBTM_SEC_DEV_REC *p_dev_rec = list_node(node);
+        /* Device is not paired */
+        if ((p_dev_rec->sec_flags & (BTM_SEC_LINK_KEY_KNOWN |BTM_SEC_LE_LINK_KEY_KNOWN)) == 0) {
+            if (p_dev_rec->timestamp < ot) {
+                p_oldest = p_dev_rec;
+                ot       = p_dev_rec->timestamp;
+            }
+            continue;
+        }
+
+        if (p_dev_rec->timestamp < ot_paired) {
+            p_oldest_paired = p_dev_rec;
+            ot_paired       = p_dev_rec->timestamp;
+        }
+
+    }
+
+    /* if non-paired device return oldest */
+    if (ot != 0xFFFFFFFF)
+        return(p_oldest);
+
+    /* only paired devices present, return oldest */
+    return p_oldest_paired;
+}
+
+/*******************************************************************************
+**
+** Function         btm_get_bond_type_dev
+**
+** Description      Get the bond type for a device in the device database
+**                  with specified BD address
+**
+** Returns          The device bond type if known, otherwise BOND_TYPE_UNKNOWN
+**
+*******************************************************************************/
+tBTM_BOND_TYPE btm_get_bond_type_dev(BD_ADDR bd_addr)
+{
+    tBTM_SEC_DEV_REC *p_dev_rec = btm_find_dev(bd_addr);
+
+    if (p_dev_rec == NULL)
+        return BOND_TYPE_UNKNOWN;
+
+    return p_dev_rec->bond_type;
+}
+
+/*******************************************************************************
+**
+** Function         btm_set_bond_type_dev
+**
+** Description      Set the bond type for a device in the device database
+**                  with specified BD address
+**
+** Returns          TRUE on success, otherwise FALSE
+**
+*******************************************************************************/
+BOOLEAN btm_set_bond_type_dev(BD_ADDR bd_addr, tBTM_BOND_TYPE bond_type)
+{
+    tBTM_SEC_DEV_REC *p_dev_rec = btm_find_dev(bd_addr);
+
+    if (p_dev_rec == NULL)
+        return FALSE;
+
+    p_dev_rec->bond_type = bond_type;
+    return TRUE;
+}
diff --git a/rtkbt/code/bt/stack/btm/btm_devctl.c b/rtkbt/code/bt/stack/btm/btm_devctl.c
new file mode 100755
index 0000000..18e20b5
--- /dev/null
+++ b/rtkbt/code/bt/stack/btm/btm_devctl.c
@@ -0,0 +1,984 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains functions that handle BTM interface functions for the
+ *  Bluetooth device including Rest, HCI buffer size and others
+ *
+ ******************************************************************************/
+
+#include <assert.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+#include <stddef.h>
+
+#include "bt_types.h"
+#include "bt_utils.h"
+#include "btm_int.h"
+#include "btu.h"
+#include "device/include/controller.h"
+#include "hci_layer.h"
+#include "hcimsgs.h"
+#include "l2c_int.h"
+#include "btcore/include/module.h"
+#include "osi/include/thread.h"
+
+#if BLE_INCLUDED == TRUE
+#include "gatt_int.h"
+#endif /* BLE_INCLUDED */
+
+extern fixed_queue_t *btu_general_alarm_queue;
+extern thread_t *bt_workqueue_thread;
+
+/********************************************************************************/
+/*                 L O C A L    D A T A    D E F I N I T I O N S                */
+/********************************************************************************/
+
+#ifndef BTM_DEV_RESET_TIMEOUT
+#define BTM_DEV_RESET_TIMEOUT   4
+#endif
+
+// TODO: Reevaluate this value in the context of timers with ms granularity
+#define BTM_DEV_NAME_REPLY_TIMEOUT_MS (2 * 1000) /* 2 seconds for name reply */
+
+#define BTM_INFO_TIMEOUT        5   /* 5 seconds for info response */
+
+/********************************************************************************/
+/*              L O C A L    F U N C T I O N     P R O T O T Y P E S            */
+/********************************************************************************/
+
+static void btm_decode_ext_features_page (UINT8 page_number, const BD_FEATURES p_features);
+
+/*******************************************************************************
+**
+** Function         btm_dev_init
+**
+** Description      This function is on the BTM startup
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_dev_init (void)
+{
+#if 0  /* cleared in btm_init; put back in if called from anywhere else! */
+    memset (&btm_cb.devcb, 0, sizeof (tBTM_DEVCB));
+#endif
+
+    /* Initialize nonzero defaults */
+#if (BTM_MAX_LOC_BD_NAME_LEN > 0)
+    memset(btm_cb.cfg.bd_name, 0, sizeof(tBTM_LOC_BD_NAME));
+#endif
+
+    btm_cb.devcb.read_local_name_timer =
+        alarm_new("btm.read_local_name_timer");
+    btm_cb.devcb.read_rssi_timer = alarm_new("btm.read_rssi_timer");
+    btm_cb.devcb.read_link_quality_timer =
+        alarm_new("btm.read_link_quality_timer");
+    btm_cb.devcb.read_inq_tx_power_timer =
+        alarm_new("btm.read_inq_tx_power_timer");
+    btm_cb.devcb.qos_setup_timer = alarm_new("btm.qos_setup_timer");
+    btm_cb.devcb.read_tx_power_timer = alarm_new("btm.read_tx_power_timer");
+
+    btm_cb.btm_acl_pkt_types_supported = BTM_ACL_PKT_TYPES_MASK_DH1 + BTM_ACL_PKT_TYPES_MASK_DM1 +
+                                         BTM_ACL_PKT_TYPES_MASK_DH3 + BTM_ACL_PKT_TYPES_MASK_DM3 +
+                                         BTM_ACL_PKT_TYPES_MASK_DH5 + BTM_ACL_PKT_TYPES_MASK_DM5;
+
+    btm_cb.btm_sco_pkt_types_supported = BTM_SCO_PKT_TYPES_MASK_HV1 +
+                                         BTM_SCO_PKT_TYPES_MASK_HV2 +
+                                         BTM_SCO_PKT_TYPES_MASK_HV3 +
+                                         BTM_SCO_PKT_TYPES_MASK_EV3 +
+                                         BTM_SCO_PKT_TYPES_MASK_EV4 +
+                                         BTM_SCO_PKT_TYPES_MASK_EV5;
+}
+
+
+/*******************************************************************************
+**
+** Function         btm_db_reset
+**
+** Description      This function is called by BTM_DeviceReset and clears out any
+**                  pending callbacks for inquiries, discoveries, other pending
+**                  functions that may be in progress.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btm_db_reset (void)
+{
+    tBTM_CMPL_CB    *p_cb;
+    tBTM_STATUS      status = BTM_DEV_RESET;
+
+    btm_inq_db_reset();
+
+    if (btm_cb.devcb.p_rln_cmpl_cb)
+    {
+        p_cb = btm_cb.devcb.p_rln_cmpl_cb;
+        btm_cb.devcb.p_rln_cmpl_cb = NULL;
+
+        if (p_cb)
+            (*p_cb)((void *) NULL);
+    }
+
+    if (btm_cb.devcb.p_rssi_cmpl_cb)
+    {
+        p_cb = btm_cb.devcb.p_rssi_cmpl_cb;
+        btm_cb.devcb.p_rssi_cmpl_cb = NULL;
+
+        if (p_cb)
+            (*p_cb)((tBTM_RSSI_RESULTS *) &status);
+    }
+}
+
+bool set_sec_state_idle(void *data, void *context)
+{
+    tBTM_SEC_DEV_REC *p_dev_rec = data;
+    p_dev_rec->sec_state = BTM_SEC_STATE_IDLE;
+    return true;
+}
+
+static void reset_complete(void *result) {
+  assert(result == FUTURE_SUCCESS);
+  const controller_t *controller = controller_get_interface();
+
+  /* Tell L2CAP that all connections are gone */
+  l2cu_device_reset ();
+
+  /* Clear current security state */
+  list_foreach(btm_cb.sec_dev_rec, set_sec_state_idle, NULL);
+
+  /* After the reset controller should restore all parameters to defaults. */
+  btm_cb.btm_inq_vars.inq_counter       = 1;
+  btm_cb.btm_inq_vars.inq_scan_window   = HCI_DEF_INQUIRYSCAN_WINDOW;
+  btm_cb.btm_inq_vars.inq_scan_period   = HCI_DEF_INQUIRYSCAN_INTERVAL;
+  btm_cb.btm_inq_vars.inq_scan_type     = HCI_DEF_SCAN_TYPE;
+
+  btm_cb.btm_inq_vars.page_scan_window  = HCI_DEF_PAGESCAN_WINDOW;
+  btm_cb.btm_inq_vars.page_scan_period  = HCI_DEF_PAGESCAN_INTERVAL;
+  btm_cb.btm_inq_vars.page_scan_type    = HCI_DEF_SCAN_TYPE;
+
+#if (BLE_INCLUDED == TRUE)
+  btm_cb.ble_ctr_cb.conn_state = BLE_CONN_IDLE;
+  btm_cb.ble_ctr_cb.bg_conn_type = BTM_BLE_CONN_NONE;
+  btm_cb.ble_ctr_cb.p_select_cback = NULL;
+  gatt_reset_bgdev_list();
+  btm_ble_multi_adv_init();
+#endif
+
+  btm_pm_reset();
+
+  l2c_link_processs_num_bufs(controller->get_acl_buffer_count_classic());
+#if (BLE_INCLUDED == TRUE)
+
+#if (defined BLE_PRIVACY_SPT && BLE_PRIVACY_SPT == TRUE)
+  /* Set up the BLE privacy settings */
+  if (controller->supports_ble() && controller->supports_ble_privacy() &&
+      controller->get_ble_resolving_list_max_size() > 0) {
+      btm_ble_resolving_list_init(controller->get_ble_resolving_list_max_size());
+      /* set the default random private address timeout */
+      btsnd_hcic_ble_set_rand_priv_addr_timeout(BTM_BLE_PRIVATE_ADDR_INT_MS / 1000);
+  }
+#endif
+
+  if (controller->supports_ble()) {
+    btm_ble_white_list_init(controller->get_ble_white_list_size());
+    l2c_link_processs_ble_num_bufs(controller->get_acl_buffer_count_ble());
+  }
+#endif
+
+  BTM_SetPinType (btm_cb.cfg.pin_type, btm_cb.cfg.pin_code, btm_cb.cfg.pin_code_len);
+
+  for (int i = 0; i <= controller->get_last_features_classic_index(); i++) {
+    btm_decode_ext_features_page(i, controller->get_features_classic(i)->as_array);
+  }
+
+  btm_report_device_status(BTM_DEV_STATUS_UP);
+}
+
+// TODO(zachoverflow): remove this function
+void BTM_DeviceReset (UNUSED_ATTR tBTM_CMPL_CB *p_cb) {
+  /* Flush all ACL connections */
+  btm_acl_device_down();
+
+  /* Clear the callback, so application would not hang on reset */
+  btm_db_reset();
+
+  module_start_up_callbacked_wrapper(
+    get_module(CONTROLLER_MODULE),
+    bt_workqueue_thread,
+    reset_complete
+  );
+}
+
+/*******************************************************************************
+**
+** Function         BTM_IsDeviceUp
+**
+** Description      This function is called to check if the device is up.
+**
+** Returns          TRUE if device is up, else FALSE
+**
+*******************************************************************************/
+BOOLEAN BTM_IsDeviceUp (void)
+{
+    return controller_get_interface()->get_is_ready();
+}
+
+/*******************************************************************************
+**
+** Function         btm_read_local_name_timeout
+**
+** Description      Callback when reading the local name times out.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_read_local_name_timeout(UNUSED_ATTR void *data)
+{
+    tBTM_CMPL_CB  *p_cb = btm_cb.devcb.p_rln_cmpl_cb;
+    btm_cb.devcb.p_rln_cmpl_cb = NULL;
+    if (p_cb)
+        (*p_cb)((void *) NULL);
+}
+
+/*******************************************************************************
+**
+** Function         btm_decode_ext_features_page
+**
+** Description      This function is decodes a features page.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btm_decode_ext_features_page (UINT8 page_number, const UINT8 *p_features)
+{
+    BTM_TRACE_DEBUG ("btm_decode_ext_features_page page: %d", page_number);
+    switch (page_number)
+    {
+    /* Extended (Legacy) Page 0 */
+    case HCI_EXT_FEATURES_PAGE_0:
+
+        /* Create ACL supported packet types mask */
+        btm_cb.btm_acl_pkt_types_supported = (BTM_ACL_PKT_TYPES_MASK_DH1 +
+                                              BTM_ACL_PKT_TYPES_MASK_DM1);
+
+        if (HCI_3_SLOT_PACKETS_SUPPORTED(p_features))
+            btm_cb.btm_acl_pkt_types_supported |= (BTM_ACL_PKT_TYPES_MASK_DH3 +
+                                                   BTM_ACL_PKT_TYPES_MASK_DM3);
+
+        if (HCI_5_SLOT_PACKETS_SUPPORTED(p_features))
+            btm_cb.btm_acl_pkt_types_supported |= (BTM_ACL_PKT_TYPES_MASK_DH5 +
+                                                   BTM_ACL_PKT_TYPES_MASK_DM5);
+
+        /* Add in EDR related ACL types */
+        if (!HCI_EDR_ACL_2MPS_SUPPORTED(p_features))
+        {
+            btm_cb.btm_acl_pkt_types_supported |= (BTM_ACL_PKT_TYPES_MASK_NO_2_DH1 +
+                                                   BTM_ACL_PKT_TYPES_MASK_NO_2_DH3 +
+                                                   BTM_ACL_PKT_TYPES_MASK_NO_2_DH5);
+        }
+
+        if (!HCI_EDR_ACL_3MPS_SUPPORTED(p_features))
+        {
+            btm_cb.btm_acl_pkt_types_supported |= (BTM_ACL_PKT_TYPES_MASK_NO_3_DH1 +
+                                                   BTM_ACL_PKT_TYPES_MASK_NO_3_DH3 +
+                                                   BTM_ACL_PKT_TYPES_MASK_NO_3_DH5);
+        }
+
+        /* Check to see if 3 and 5 slot packets are available */
+        if (HCI_EDR_ACL_2MPS_SUPPORTED(p_features) ||
+            HCI_EDR_ACL_3MPS_SUPPORTED(p_features))
+        {
+            if (!HCI_3_SLOT_EDR_ACL_SUPPORTED(p_features))
+                btm_cb.btm_acl_pkt_types_supported |= (BTM_ACL_PKT_TYPES_MASK_NO_2_DH3 +
+                                                       BTM_ACL_PKT_TYPES_MASK_NO_3_DH3);
+
+            if (!HCI_5_SLOT_EDR_ACL_SUPPORTED(p_features))
+                btm_cb.btm_acl_pkt_types_supported |= (BTM_ACL_PKT_TYPES_MASK_NO_2_DH5 +
+                                                       BTM_ACL_PKT_TYPES_MASK_NO_3_DH5);
+        }
+
+        BTM_TRACE_DEBUG("Local supported ACL packet types: 0x%04x",
+                         btm_cb.btm_acl_pkt_types_supported);
+
+        /* Create (e)SCO supported packet types mask */
+        btm_cb.btm_sco_pkt_types_supported = 0;
+#if BTM_SCO_INCLUDED == TRUE
+        btm_cb.sco_cb.esco_supported = FALSE;
+#endif
+        if (HCI_SCO_LINK_SUPPORTED(p_features))
+        {
+            btm_cb.btm_sco_pkt_types_supported = BTM_SCO_PKT_TYPES_MASK_HV1;
+
+            if (HCI_HV2_PACKETS_SUPPORTED(p_features))
+                btm_cb.btm_sco_pkt_types_supported |= BTM_SCO_PKT_TYPES_MASK_HV2;
+
+            if (HCI_HV3_PACKETS_SUPPORTED(p_features))
+                btm_cb.btm_sco_pkt_types_supported |= BTM_SCO_PKT_TYPES_MASK_HV3;
+        }
+
+        if (HCI_ESCO_EV3_SUPPORTED(p_features))
+            btm_cb.btm_sco_pkt_types_supported |= BTM_SCO_PKT_TYPES_MASK_EV3;
+
+        if (HCI_ESCO_EV4_SUPPORTED(p_features))
+            btm_cb.btm_sco_pkt_types_supported |= BTM_SCO_PKT_TYPES_MASK_EV4;
+
+        if (HCI_ESCO_EV5_SUPPORTED(p_features))
+            btm_cb.btm_sco_pkt_types_supported |= BTM_SCO_PKT_TYPES_MASK_EV5;
+#if BTM_SCO_INCLUDED == TRUE
+        if (btm_cb.btm_sco_pkt_types_supported & BTM_ESCO_LINK_ONLY_MASK)
+        {
+            btm_cb.sco_cb.esco_supported = TRUE;
+
+            /* Add in EDR related eSCO types */
+            if (HCI_EDR_ESCO_2MPS_SUPPORTED(p_features))
+            {
+                if (!HCI_3_SLOT_EDR_ESCO_SUPPORTED(p_features))
+                    btm_cb.btm_sco_pkt_types_supported |= BTM_SCO_PKT_TYPES_MASK_NO_2_EV5;
+            }
+            else
+            {
+                btm_cb.btm_sco_pkt_types_supported |= (BTM_SCO_PKT_TYPES_MASK_NO_2_EV3 +
+                                                       BTM_SCO_PKT_TYPES_MASK_NO_2_EV5);
+            }
+
+            if (HCI_EDR_ESCO_3MPS_SUPPORTED(p_features))
+            {
+                if (!HCI_3_SLOT_EDR_ESCO_SUPPORTED(p_features))
+                    btm_cb.btm_sco_pkt_types_supported |= BTM_SCO_PKT_TYPES_MASK_NO_3_EV5;
+            }
+            else
+            {
+                btm_cb.btm_sco_pkt_types_supported |= (BTM_SCO_PKT_TYPES_MASK_NO_3_EV3 +
+                                                       BTM_SCO_PKT_TYPES_MASK_NO_3_EV5);
+            }
+        }
+#endif
+
+        BTM_TRACE_DEBUG("Local supported SCO packet types: 0x%04x",
+                         btm_cb.btm_sco_pkt_types_supported);
+
+        /* Create Default Policy Settings */
+        if (HCI_SWITCH_SUPPORTED(p_features))
+            btm_cb.btm_def_link_policy |= HCI_ENABLE_MASTER_SLAVE_SWITCH;
+        else
+            btm_cb.btm_def_link_policy &= ~HCI_ENABLE_MASTER_SLAVE_SWITCH;
+
+        if (HCI_HOLD_MODE_SUPPORTED(p_features))
+            btm_cb.btm_def_link_policy |= HCI_ENABLE_HOLD_MODE;
+        else
+            btm_cb.btm_def_link_policy &= ~HCI_ENABLE_HOLD_MODE;
+
+        if (HCI_SNIFF_MODE_SUPPORTED(p_features))
+            btm_cb.btm_def_link_policy |= HCI_ENABLE_SNIFF_MODE;
+        else
+            btm_cb.btm_def_link_policy &= ~HCI_ENABLE_SNIFF_MODE;
+
+        if (HCI_PARK_MODE_SUPPORTED(p_features))
+            btm_cb.btm_def_link_policy |= HCI_ENABLE_PARK_MODE;
+        else
+            btm_cb.btm_def_link_policy &= ~HCI_ENABLE_PARK_MODE;
+
+        btm_sec_dev_reset ();
+
+        if (HCI_LMP_INQ_RSSI_SUPPORTED(p_features))
+        {
+            if (HCI_EXT_INQ_RSP_SUPPORTED(p_features))
+                BTM_SetInquiryMode (BTM_INQ_RESULT_EXTENDED);
+            else
+                BTM_SetInquiryMode (BTM_INQ_RESULT_WITH_RSSI);
+        }
+
+#if L2CAP_NON_FLUSHABLE_PB_INCLUDED == TRUE
+        if( HCI_NON_FLUSHABLE_PB_SUPPORTED(p_features))
+            l2cu_set_non_flushable_pbf(TRUE);
+        else
+            l2cu_set_non_flushable_pbf(FALSE);
+#endif
+        BTM_SetPageScanType (BTM_DEFAULT_SCAN_TYPE);
+        BTM_SetInquiryScanType (BTM_DEFAULT_SCAN_TYPE);
+
+        break;
+
+    /* Extended Page 1 */
+    case HCI_EXT_FEATURES_PAGE_1:
+        /* Nothing to do for page 1 */
+        break;
+
+    /* Extended Page 2 */
+    case HCI_EXT_FEATURES_PAGE_2:
+        /* Nothing to do for page 2 */
+        break;
+
+    default:
+        BTM_TRACE_ERROR("btm_decode_ext_features_page page=%d unknown", page_number);
+        break;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         BTM_SetLocalDeviceName
+**
+** Description      This function is called to set the local device name.
+**
+** Returns          status of the operation
+**
+*******************************************************************************/
+tBTM_STATUS BTM_SetLocalDeviceName (char *p_name)
+{
+    UINT8    *p;
+
+    if (!p_name || !p_name[0] || (strlen ((char *)p_name) > BD_NAME_LEN))
+        return (BTM_ILLEGAL_VALUE);
+
+    if (!controller_get_interface()->get_is_ready())
+        return (BTM_DEV_RESET);
+
+#if BTM_MAX_LOC_BD_NAME_LEN > 0
+    /* Save the device name if local storage is enabled */
+    p = (UINT8 *)btm_cb.cfg.bd_name;
+    if (p != (UINT8 *)p_name)
+        strlcpy(btm_cb.cfg.bd_name, p_name, BTM_MAX_LOC_BD_NAME_LEN);
+#else
+    p = (UINT8 *)p_name;
+#endif
+
+    if (btsnd_hcic_change_name(p))
+        return (BTM_CMD_STARTED);
+    else
+        return (BTM_NO_RESOURCES);
+}
+
+
+
+/*******************************************************************************
+**
+** Function         BTM_ReadLocalDeviceName
+**
+** Description      This function is called to read the local device name.
+**
+** Returns          status of the operation
+**                  If success, BTM_SUCCESS is returned and p_name points stored
+**                              local device name
+**                  If BTM doesn't store local device name, BTM_NO_RESOURCES is
+**                              is returned and p_name is set to NULL
+**
+*******************************************************************************/
+tBTM_STATUS BTM_ReadLocalDeviceName (char **p_name)
+{
+#if BTM_MAX_LOC_BD_NAME_LEN > 0
+    *p_name = btm_cb.cfg.bd_name;
+    return(BTM_SUCCESS);
+#else
+    *p_name = NULL;
+    return(BTM_NO_RESOURCES);
+#endif
+}
+
+
+/*******************************************************************************
+**
+** Function         BTM_ReadLocalDeviceNameFromController
+**
+** Description      Get local device name from controller. Do not use cached
+**                  name (used to get chip-id prior to btm reset complete).
+**
+** Returns          BTM_CMD_STARTED if successful, otherwise an error
+**
+*******************************************************************************/
+tBTM_STATUS BTM_ReadLocalDeviceNameFromController (tBTM_CMPL_CB *p_rln_cmpl_cback)
+{
+    /* Check if rln already in progress */
+    if (btm_cb.devcb.p_rln_cmpl_cb)
+        return(BTM_NO_RESOURCES);
+
+    /* Save callback */
+    btm_cb.devcb.p_rln_cmpl_cb = p_rln_cmpl_cback;
+
+    btsnd_hcic_read_name();
+    alarm_set_on_queue(btm_cb.devcb.read_local_name_timer,
+                       BTM_DEV_NAME_REPLY_TIMEOUT_MS,
+                       btm_read_local_name_timeout, NULL,
+                       btu_general_alarm_queue);
+
+    return BTM_CMD_STARTED;
+}
+
+/*******************************************************************************
+**
+** Function         btm_read_local_name_complete
+**
+** Description      This function is called when local name read complete.
+**                  message is received from the HCI.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_read_local_name_complete (UINT8 *p, UINT16 evt_len)
+{
+    tBTM_CMPL_CB   *p_cb = btm_cb.devcb.p_rln_cmpl_cb;
+    UINT8           status;
+    UNUSED(evt_len);
+
+    alarm_cancel(btm_cb.devcb.read_local_name_timer);
+
+    /* If there was a callback address for read local name, call it */
+    btm_cb.devcb.p_rln_cmpl_cb = NULL;
+
+    if (p_cb)
+    {
+        STREAM_TO_UINT8  (status, p);
+
+        if (status == HCI_SUCCESS)
+            (*p_cb)(p);
+        else
+            (*p_cb)(NULL);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         BTM_SetDeviceClass
+**
+** Description      This function is called to set the local device class
+**
+** Returns          status of the operation
+**
+*******************************************************************************/
+tBTM_STATUS BTM_SetDeviceClass (DEV_CLASS dev_class)
+{
+    if(!memcmp (btm_cb.devcb.dev_class, dev_class, DEV_CLASS_LEN))
+        return(BTM_SUCCESS);
+
+    memcpy (btm_cb.devcb.dev_class, dev_class, DEV_CLASS_LEN);
+
+    if (!controller_get_interface()->get_is_ready())
+        return (BTM_DEV_RESET);
+
+    if (!btsnd_hcic_write_dev_class (dev_class))
+        return (BTM_NO_RESOURCES);
+
+    return (BTM_SUCCESS);
+}
+
+
+/*******************************************************************************
+**
+** Function         BTM_ReadDeviceClass
+**
+** Description      This function is called to read the local device class
+**
+** Returns          pointer to the device class
+**
+*******************************************************************************/
+UINT8 *BTM_ReadDeviceClass (void)
+{
+    return ((UINT8 *)btm_cb.devcb.dev_class);
+}
+
+
+/*******************************************************************************
+**
+** Function         BTM_ReadLocalFeatures
+**
+** Description      This function is called to read the local features
+**
+** Returns          pointer to the local features string
+**
+*******************************************************************************/
+// TODO(zachoverflow): get rid of this function
+UINT8 *BTM_ReadLocalFeatures (void)
+{
+    // Discarding const modifier for now, until this function dies
+    return (UINT8 *)controller_get_interface()->get_features_classic(0)->as_array;
+}
+
+/*******************************************************************************
+**
+** Function         BTM_RegisterForDeviceStatusNotif
+**
+** Description      This function is called to register for device status
+**                  change notifications.
+**
+**                  If one registration is already there calling function should
+**                  save the pointer to the function that is return and
+**                  call it when processing of the event is complete
+**
+** Returns          status of the operation
+**
+*******************************************************************************/
+tBTM_DEV_STATUS_CB *BTM_RegisterForDeviceStatusNotif (tBTM_DEV_STATUS_CB *p_cb)
+{
+    tBTM_DEV_STATUS_CB *p_prev = btm_cb.devcb.p_dev_status_cb;
+
+    btm_cb.devcb.p_dev_status_cb = p_cb;
+    return (p_prev);
+}
+
+/*******************************************************************************
+**
+** Function         BTM_VendorSpecificCommand
+**
+** Description      Send a vendor specific HCI command to the controller.
+**
+** Returns
+**      BTM_SUCCESS         Command sent. Does not expect command complete
+**                              event. (command cmpl callback param is NULL)
+**      BTM_CMD_STARTED     Command sent. Waiting for command cmpl event.
+**
+** Notes
+**      Opcode will be OR'd with HCI_GRP_VENDOR_SPECIFIC.
+**
+*******************************************************************************/
+tBTM_STATUS BTM_VendorSpecificCommand(UINT16 opcode, UINT8 param_len,
+                                      UINT8 *p_param_buf, tBTM_VSC_CMPL_CB *p_cb)
+{
+    /* Allocate a buffer to hold HCI command plus the callback function */
+    void *p_buf = osi_malloc(sizeof(BT_HDR) + sizeof(tBTM_CMPL_CB *) +
+                             param_len + HCIC_PREAMBLE_SIZE);
+
+    BTM_TRACE_EVENT("BTM: %s: Opcode: 0x%04X, ParamLen: %i.", __func__,
+                    opcode, param_len);
+
+    /* Send the HCI command (opcode will be OR'd with HCI_GRP_VENDOR_SPECIFIC) */
+    btsnd_hcic_vendor_spec_cmd(p_buf, opcode, param_len, p_param_buf, (void *)p_cb);
+
+    /* Return value */
+    if (p_cb != NULL)
+        return (BTM_CMD_STARTED);
+    else
+        return (BTM_SUCCESS);
+}
+
+
+/*******************************************************************************
+**
+** Function         btm_vsc_complete
+**
+** Description      This function is called when local HCI Vendor Specific
+**                  Command complete message is received from the HCI.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_vsc_complete (UINT8 *p, UINT16 opcode, UINT16 evt_len,
+                       tBTM_CMPL_CB *p_vsc_cplt_cback)
+{
+    tBTM_VSC_CMPL   vcs_cplt_params;
+
+    /* If there was a callback address for vcs complete, call it */
+    if (p_vsc_cplt_cback)
+    {
+        /* Pass paramters to the callback function */
+        vcs_cplt_params.opcode = opcode;        /* Number of bytes in return info */
+        vcs_cplt_params.param_len = evt_len;    /* Number of bytes in return info */
+        vcs_cplt_params.p_param_buf = p;
+        (*p_vsc_cplt_cback)(&vcs_cplt_params);  /* Call the VSC complete callback function */
+    }
+}
+
+/*******************************************************************************
+**
+** Function         BTM_RegisterForVSEvents
+**
+** Description      This function is called to register/deregister for vendor
+**                  specific HCI events.
+**
+**                  If is_register=TRUE, then the function will be registered;
+**                  if is_register=FALSE, then the function will be deregistered.
+**
+** Returns          BTM_SUCCESS if successful,
+**                  BTM_BUSY if maximum number of callbacks have already been
+**                           registered.
+**
+*******************************************************************************/
+tBTM_STATUS BTM_RegisterForVSEvents (tBTM_VS_EVT_CB *p_cb, BOOLEAN is_register)
+{
+    tBTM_STATUS retval = BTM_SUCCESS;
+    UINT8 i, free_idx = BTM_MAX_VSE_CALLBACKS;
+
+    /* See if callback is already registered */
+    for (i=0; i<BTM_MAX_VSE_CALLBACKS; i++)
+    {
+        if (btm_cb.devcb.p_vend_spec_cb[i] == NULL)
+        {
+            /* Found a free slot. Store index */
+            free_idx = i;
+        }
+        else if (btm_cb.devcb.p_vend_spec_cb[i] == p_cb)
+        {
+            /* Found callback in lookup table. If deregistering, clear the entry. */
+            if (is_register == FALSE)
+            {
+                btm_cb.devcb.p_vend_spec_cb[i] = NULL;
+                BTM_TRACE_EVENT("BTM Deregister For VSEvents is successfully");
+            }
+            return (BTM_SUCCESS);
+        }
+    }
+
+    /* Didn't find callback. Add callback to free slot if registering */
+    if (is_register)
+    {
+        if (free_idx < BTM_MAX_VSE_CALLBACKS)
+        {
+            btm_cb.devcb.p_vend_spec_cb[free_idx] = p_cb;
+            BTM_TRACE_EVENT("BTM Register For VSEvents is successfully");
+        }
+        else
+        {
+            /* No free entries available */
+            BTM_TRACE_ERROR ("BTM_RegisterForVSEvents: too many callbacks registered");
+
+            retval = BTM_NO_RESOURCES;
+        }
+    }
+
+    return (retval);
+}
+
+/*******************************************************************************
+**
+** Function         btm_vendor_specific_evt
+**
+** Description      Process event HCI_VENDOR_SPECIFIC_EVT
+**
+**                  Note: Some controllers do not send command complete, so
+**                  the callback and busy flag are cleared here also.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_vendor_specific_evt (UINT8 *p, UINT8 evt_len)
+{
+    UINT8 i;
+
+    BTM_TRACE_DEBUG ("BTM Event: Vendor Specific event from controller");
+
+    for (i=0; i<BTM_MAX_VSE_CALLBACKS; i++)
+    {
+        if (btm_cb.devcb.p_vend_spec_cb[i])
+            (*btm_cb.devcb.p_vend_spec_cb[i])(evt_len, p);
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         BTM_WritePageTimeout
+**
+** Description      Send HCI Write Page Timeout.
+**
+** Returns
+**      BTM_SUCCESS         Command sent.
+**      BTM_NO_RESOURCES     If out of resources to send the command.
+**
+**
+*******************************************************************************/
+tBTM_STATUS BTM_WritePageTimeout(UINT16 timeout)
+{
+    BTM_TRACE_EVENT ("BTM: BTM_WritePageTimeout: Timeout: %d.", timeout);
+
+    /* Send the HCI command */
+    if (btsnd_hcic_write_page_tout (timeout))
+        return (BTM_SUCCESS);
+    else
+        return (BTM_NO_RESOURCES);
+}
+
+/*******************************************************************************
+**
+** Function         BTM_WriteVoiceSettings
+**
+** Description      Send HCI Write Voice Settings command.
+**                  See hcidefs.h for settings bitmask values.
+**
+** Returns
+**      BTM_SUCCESS         Command sent.
+**      BTM_NO_RESOURCES     If out of resources to send the command.
+**
+**
+*******************************************************************************/
+tBTM_STATUS BTM_WriteVoiceSettings(UINT16 settings)
+{
+    BTM_TRACE_EVENT ("BTM: BTM_WriteVoiceSettings: Settings: 0x%04x.", settings);
+
+    /* Send the HCI command */
+    if (btsnd_hcic_write_voice_settings ((UINT16)(settings & 0x03ff)))
+        return (BTM_SUCCESS);
+
+    return (BTM_NO_RESOURCES);
+}
+
+/*******************************************************************************
+**
+** Function         BTM_EnableTestMode
+**
+** Description      Send HCI the enable device under test command.
+**
+**                  Note: Controller can only be taken out of this mode by
+**                      resetting the controller.
+**
+** Returns
+**      BTM_SUCCESS         Command sent.
+**      BTM_NO_RESOURCES    If out of resources to send the command.
+**
+**
+*******************************************************************************/
+tBTM_STATUS BTM_EnableTestMode(void)
+{
+    UINT8   cond;
+
+    BTM_TRACE_EVENT ("BTM: BTM_EnableTestMode");
+
+    /* set auto accept connection as this is needed during test mode */
+    /* Allocate a buffer to hold HCI command */
+    cond = HCI_DO_AUTO_ACCEPT_CONNECT;
+    if (!btsnd_hcic_set_event_filter(HCI_FILTER_CONNECTION_SETUP,
+                                     HCI_FILTER_COND_NEW_DEVICE,
+                                     &cond, sizeof(cond)))
+    {
+        return (BTM_NO_RESOURCES);
+    }
+
+    /* put device to connectable mode */
+    if (BTM_SetConnectability(BTM_CONNECTABLE, BTM_DEFAULT_CONN_WINDOW,
+                              BTM_DEFAULT_CONN_INTERVAL) != BTM_SUCCESS) {
+        return BTM_NO_RESOURCES;
+    }
+
+    /* put device to discoverable mode */
+    if (BTM_SetDiscoverability(BTM_GENERAL_DISCOVERABLE,
+                               BTM_DEFAULT_DISC_WINDOW,
+                               BTM_DEFAULT_DISC_INTERVAL) != BTM_SUCCESS) {
+        return BTM_NO_RESOURCES;
+    }
+
+    /* mask off all of event from controller */
+    hci_layer_get_interface()->transmit_command(
+      hci_packet_factory_get_interface()->make_set_event_mask((const bt_event_mask_t *)("\x00\x00\x00\x00\x00\x00\x00\x00")),
+      NULL,
+      NULL,
+      NULL);
+
+    /* Send the HCI command */
+    if (btsnd_hcic_enable_test_mode ())
+        return (BTM_SUCCESS);
+    else
+        return (BTM_NO_RESOURCES);
+}
+
+/*******************************************************************************
+**
+** Function         BTM_DeleteStoredLinkKey
+**
+** Description      This function is called to delete link key for the specified
+**                  device addresses from the NVRAM storage attached to the Bluetooth
+**                  controller.
+**
+** Parameters:      bd_addr      - Addresses of the devices
+**                  p_cb         - Call back function to be called to return
+**                                 the results
+**
+*******************************************************************************/
+tBTM_STATUS BTM_DeleteStoredLinkKey(BD_ADDR bd_addr, tBTM_CMPL_CB *p_cb)
+{
+    BD_ADDR local_bd_addr;
+    BOOLEAN delete_all_flag = FALSE;
+
+    /* Check if the previous command is completed */
+    if (btm_cb.devcb.p_stored_link_key_cmpl_cb)
+        return (BTM_BUSY);
+
+    if (!bd_addr)
+    {
+        /* This is to delete all link keys */
+        delete_all_flag = TRUE;
+
+        /* We don't care the BD address. Just pass a non zero pointer */
+        bd_addr = local_bd_addr;
+    }
+
+    BTM_TRACE_EVENT ("BTM: BTM_DeleteStoredLinkKey: delete_all_flag: %s",
+                        delete_all_flag ? "TRUE" : "FALSE");
+
+    /* Send the HCI command */
+    btm_cb.devcb.p_stored_link_key_cmpl_cb = p_cb;
+    if (!btsnd_hcic_delete_stored_key (bd_addr, delete_all_flag))
+    {
+        return (BTM_NO_RESOURCES);
+    }
+    else
+        return (BTM_SUCCESS);
+}
+
+/*******************************************************************************
+**
+** Function         btm_delete_stored_link_key_complete
+**
+** Description      This function is called when the command complete message
+**                  is received from the HCI for the delete stored link key command.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_delete_stored_link_key_complete (UINT8 *p)
+{
+    tBTM_CMPL_CB         *p_cb = btm_cb.devcb.p_stored_link_key_cmpl_cb;
+    tBTM_DELETE_STORED_LINK_KEY_COMPLETE  result;
+
+    /* If there was a callback registered for read stored link key, call it */
+    btm_cb.devcb.p_stored_link_key_cmpl_cb = NULL;
+
+    if (p_cb)
+    {
+        /* Set the call back event to indicate command complete */
+        result.event = BTM_CB_EVT_DELETE_STORED_LINK_KEYS;
+
+        /* Extract the result fields from the HCI event */
+        STREAM_TO_UINT8  (result.status, p);
+        STREAM_TO_UINT16 (result.num_keys, p);
+
+        /* Call the call back and pass the result */
+        (*p_cb)(&result);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btm_report_device_status
+**
+** Description      This function is called when there is a change in the device
+**                  status. This function will report the new device status to
+**                  the application
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_report_device_status (tBTM_DEV_STATUS status)
+{
+    tBTM_DEV_STATUS_CB *p_cb = btm_cb.devcb.p_dev_status_cb;
+
+    /* Call the call back to pass the device status to application */
+    if (p_cb)
+        (*p_cb)(status);
+}
+
+
diff --git a/rtkbt/code/bt/stack/btm/btm_inq.c b/rtkbt/code/bt/stack/btm/btm_inq.c
new file mode 100755
index 0000000..74f1b08
--- /dev/null
+++ b/rtkbt/code/bt/stack/btm/btm_inq.c
@@ -0,0 +1,2969 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2014 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains functions that handle inquiries. These include
+ *  setting discoverable mode, controlling the mode of the Baseband, and
+ *  maintaining a small database of inquiry responses, with API for people
+ *  to browse it.
+ *
+ ******************************************************************************/
+
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+#include <stddef.h>
+
+#include "device/include/controller.h"
+#include "osi/include/time.h"
+
+#include "bt_types.h"
+#include "bt_common.h"
+#include "hcimsgs.h"
+#include "btu.h"
+#include "btm_api.h"
+#include "btm_int.h"
+#include "hcidefs.h"
+
+/* 3 second timeout waiting for responses */
+#define BTM_INQ_REPLY_TIMEOUT_MS (3 * 1000)
+
+/* TRUE to enable DEBUG traces for btm_inq */
+#ifndef BTM_INQ_DEBUG
+#define BTM_INQ_DEBUG   FALSE
+#endif
+
+extern fixed_queue_t *btu_general_alarm_queue;
+
+/********************************************************************************/
+/*                 L O C A L    D A T A    D E F I N I T I O N S                */
+/********************************************************************************/
+static const LAP general_inq_lap = {0x9e,0x8b,0x33};
+static const LAP limited_inq_lap = {0x9e,0x8b,0x00};
+
+const UINT16 BTM_EIR_UUID_LKUP_TBL[BTM_EIR_MAX_SERVICES] =
+{
+    UUID_SERVCLASS_SERVICE_DISCOVERY_SERVER,
+/*    UUID_SERVCLASS_BROWSE_GROUP_DESCRIPTOR,   */
+/*    UUID_SERVCLASS_PUBLIC_BROWSE_GROUP,       */
+    UUID_SERVCLASS_SERIAL_PORT,
+    UUID_SERVCLASS_LAN_ACCESS_USING_PPP,
+    UUID_SERVCLASS_DIALUP_NETWORKING,
+    UUID_SERVCLASS_IRMC_SYNC,
+    UUID_SERVCLASS_OBEX_OBJECT_PUSH,
+    UUID_SERVCLASS_OBEX_FILE_TRANSFER,
+    UUID_SERVCLASS_IRMC_SYNC_COMMAND,
+    UUID_SERVCLASS_HEADSET,
+    UUID_SERVCLASS_CORDLESS_TELEPHONY,
+    UUID_SERVCLASS_AUDIO_SOURCE,
+    UUID_SERVCLASS_AUDIO_SINK,
+    UUID_SERVCLASS_AV_REM_CTRL_TARGET,
+/*    UUID_SERVCLASS_ADV_AUDIO_DISTRIBUTION,    */
+    UUID_SERVCLASS_AV_REMOTE_CONTROL,
+/*    UUID_SERVCLASS_VIDEO_CONFERENCING,        */
+    UUID_SERVCLASS_INTERCOM,
+    UUID_SERVCLASS_FAX,
+    UUID_SERVCLASS_HEADSET_AUDIO_GATEWAY,
+/*    UUID_SERVCLASS_WAP,                       */
+/*    UUID_SERVCLASS_WAP_CLIENT,                */
+    UUID_SERVCLASS_PANU,
+    UUID_SERVCLASS_NAP,
+    UUID_SERVCLASS_GN,
+    UUID_SERVCLASS_DIRECT_PRINTING,
+/*    UUID_SERVCLASS_REFERENCE_PRINTING,        */
+    UUID_SERVCLASS_IMAGING,
+    UUID_SERVCLASS_IMAGING_RESPONDER,
+    UUID_SERVCLASS_IMAGING_AUTO_ARCHIVE,
+    UUID_SERVCLASS_IMAGING_REF_OBJECTS,
+    UUID_SERVCLASS_HF_HANDSFREE,
+    UUID_SERVCLASS_AG_HANDSFREE,
+    UUID_SERVCLASS_DIR_PRT_REF_OBJ_SERVICE,
+/*    UUID_SERVCLASS_REFLECTED_UI,              */
+    UUID_SERVCLASS_BASIC_PRINTING,
+    UUID_SERVCLASS_PRINTING_STATUS,
+    UUID_SERVCLASS_HUMAN_INTERFACE,
+    UUID_SERVCLASS_CABLE_REPLACEMENT,
+    UUID_SERVCLASS_HCRP_PRINT,
+    UUID_SERVCLASS_HCRP_SCAN,
+/*    UUID_SERVCLASS_COMMON_ISDN_ACCESS,        */
+/*    UUID_SERVCLASS_VIDEO_CONFERENCING_GW,     */
+/*    UUID_SERVCLASS_UDI_MT,                    */
+/*    UUID_SERVCLASS_UDI_TA,                    */
+/*    UUID_SERVCLASS_VCP,                       */
+    UUID_SERVCLASS_SAP,
+    UUID_SERVCLASS_PBAP_PCE,
+    UUID_SERVCLASS_PBAP_PSE,
+    UUID_SERVCLASS_PHONE_ACCESS,
+    UUID_SERVCLASS_HEADSET_HS,
+    UUID_SERVCLASS_PNP_INFORMATION,
+/*    UUID_SERVCLASS_GENERIC_NETWORKING,        */
+/*    UUID_SERVCLASS_GENERIC_FILETRANSFER,      */
+/*    UUID_SERVCLASS_GENERIC_AUDIO,             */
+/*    UUID_SERVCLASS_GENERIC_TELEPHONY,         */
+/*    UUID_SERVCLASS_UPNP_SERVICE,              */
+/*    UUID_SERVCLASS_UPNP_IP_SERVICE,           */
+/*    UUID_SERVCLASS_ESDP_UPNP_IP_PAN,          */
+/*    UUID_SERVCLASS_ESDP_UPNP_IP_LAP,          */
+/*    UUID_SERVCLASS_ESDP_UPNP_IP_L2CAP,        */
+    UUID_SERVCLASS_VIDEO_SOURCE,
+    UUID_SERVCLASS_VIDEO_SINK,
+/*    UUID_SERVCLASS_VIDEO_DISTRIBUTION         */
+    UUID_SERVCLASS_MESSAGE_ACCESS,
+    UUID_SERVCLASS_MESSAGE_NOTIFICATION,
+    UUID_SERVCLASS_HDP_SOURCE,
+    UUID_SERVCLASS_HDP_SINK
+};
+
+/********************************************************************************/
+/*              L O C A L    F U N C T I O N     P R O T O T Y P E S            */
+/********************************************************************************/
+static void         btm_initiate_inquiry (tBTM_INQUIRY_VAR_ST *p_inq);
+static tBTM_STATUS  btm_set_inq_event_filter (UINT8 filter_cond_type, tBTM_INQ_FILT_COND *p_filt_cond);
+static void         btm_clr_inq_result_flt (void);
+
+static UINT8        btm_convert_uuid_to_eir_service( UINT16 uuid16 );
+static void         btm_set_eir_uuid( UINT8 *p_eir, tBTM_INQ_RESULTS *p_results );
+static UINT8       *btm_eir_get_uuid_list( UINT8 *p_eir, UINT8 uuid_size,
+                                           UINT8 *p_num_uuid, UINT8 *p_uuid_list_type );
+static UINT16       btm_convert_uuid_to_uuid16( UINT8 *p_uuid, UINT8 uuid_size );
+
+/*******************************************************************************
+**
+** Function         BTM_SetDiscoverability
+**
+** Description      This function is called to set the device into or out of
+**                  discoverable mode. Discoverable mode means inquiry
+**                  scans are enabled.  If a value of '0' is entered for window or
+**                  interval, the default values are used.
+**
+** Returns          BTM_SUCCESS if successful
+**                  BTM_BUSY if a setting of the filter is already in progress
+**                  BTM_NO_RESOURCES if couldn't get a memory pool buffer
+**                  BTM_ILLEGAL_VALUE if a bad parameter was detected
+**                  BTM_WRONG_MODE if the device is not up.
+**
+*******************************************************************************/
+tBTM_STATUS BTM_SetDiscoverability (UINT16 inq_mode, UINT16 window, UINT16 interval)
+{
+    UINT8        scan_mode = 0;
+    UINT16       service_class;
+    UINT8       *p_cod;
+    UINT8        major, minor;
+    DEV_CLASS    cod;
+    LAP          temp_lap[2];
+    BOOLEAN      is_limited;
+    BOOLEAN      cod_limited;
+
+    BTM_TRACE_API ("BTM_SetDiscoverability");
+#if (BLE_INCLUDED == TRUE && BLE_INCLUDED == TRUE)
+    if (controller_get_interface()->supports_ble())
+    {
+        if (btm_ble_set_discoverability((UINT16)(inq_mode))
+                            == BTM_SUCCESS)
+        {
+            btm_cb.btm_inq_vars.discoverable_mode &= (~BTM_BLE_DISCOVERABLE_MASK);
+            btm_cb.btm_inq_vars.discoverable_mode |= (inq_mode & BTM_BLE_DISCOVERABLE_MASK);
+        }
+    }
+    inq_mode &= ~BTM_BLE_DISCOVERABLE_MASK;
+#endif
+
+    /*** Check mode parameter ***/
+    if (inq_mode > BTM_MAX_DISCOVERABLE)
+        return (BTM_ILLEGAL_VALUE);
+
+    /* Make sure the controller is active */
+    if (!controller_get_interface()->get_is_ready())
+        return (BTM_DEV_RESET);
+
+    /* If the window and/or interval is '0', set to default values */
+    if (!window)
+        window = BTM_DEFAULT_DISC_WINDOW;
+
+    if (!interval)
+        interval = BTM_DEFAULT_DISC_INTERVAL;
+
+    BTM_TRACE_API ("BTM_SetDiscoverability: mode %d [NonDisc-0, Lim-1, Gen-2], window 0x%04x, interval 0x%04x",
+                        inq_mode, window, interval);
+
+    /*** Check for valid window and interval parameters ***/
+    /*** Only check window and duration if mode is connectable ***/
+    if (inq_mode != BTM_NON_DISCOVERABLE)
+    {
+        /* window must be less than or equal to interval */
+        if (window < HCI_MIN_INQUIRYSCAN_WINDOW     ||
+            window > HCI_MAX_INQUIRYSCAN_WINDOW     ||
+            interval < HCI_MIN_INQUIRYSCAN_INTERVAL ||
+            interval > HCI_MAX_INQUIRYSCAN_INTERVAL ||
+            window > interval)
+        {
+            return (BTM_ILLEGAL_VALUE);
+        }
+    }
+
+    /* Set the IAC if needed */
+    if (inq_mode != BTM_NON_DISCOVERABLE)
+    {
+        if (inq_mode & BTM_LIMITED_DISCOVERABLE)
+        {
+            /* Use the GIAC and LIAC codes for limited discoverable mode */
+            memcpy (temp_lap[0], limited_inq_lap, LAP_LEN);
+            memcpy (temp_lap[1], general_inq_lap, LAP_LEN);
+
+            if (!btsnd_hcic_write_cur_iac_lap (2, (LAP * const) temp_lap))
+                return (BTM_NO_RESOURCES);  /* Cannot continue */
+        }
+        else
+        {
+            if (!btsnd_hcic_write_cur_iac_lap (1, (LAP * const) &general_inq_lap))
+                return (BTM_NO_RESOURCES);  /* Cannot continue */
+        }
+
+        scan_mode |= HCI_INQUIRY_SCAN_ENABLED;
+    }
+
+    /* Send down the inquiry scan window and period if changed */
+    if ((window != btm_cb.btm_inq_vars.inq_scan_window) ||
+        (interval != btm_cb.btm_inq_vars.inq_scan_period))
+    {
+        if (btsnd_hcic_write_inqscan_cfg (interval, window))
+        {
+            btm_cb.btm_inq_vars.inq_scan_window = window;
+            btm_cb.btm_inq_vars.inq_scan_period = interval;
+        }
+        else
+            return (BTM_NO_RESOURCES);
+    }
+
+    if (btm_cb.btm_inq_vars.connectable_mode & BTM_CONNECTABLE_MASK)
+        scan_mode |= HCI_PAGE_SCAN_ENABLED;
+
+    if (btsnd_hcic_write_scan_enable (scan_mode))
+    {
+        btm_cb.btm_inq_vars.discoverable_mode &= (~BTM_DISCOVERABLE_MASK);
+        btm_cb.btm_inq_vars.discoverable_mode |= inq_mode;
+    }
+    else
+        return (BTM_NO_RESOURCES);
+
+    /* Change the service class bit if mode has changed */
+    p_cod = BTM_ReadDeviceClass();
+    BTM_COD_SERVICE_CLASS(service_class, p_cod);
+    is_limited = (inq_mode & BTM_LIMITED_DISCOVERABLE) ? TRUE : FALSE;
+    cod_limited = (service_class & BTM_COD_SERVICE_LMTD_DISCOVER) ? TRUE : FALSE;
+    if (is_limited ^ cod_limited)
+    {
+        BTM_COD_MINOR_CLASS(minor, p_cod );
+        BTM_COD_MAJOR_CLASS(major, p_cod );
+        if (is_limited)
+            service_class |= BTM_COD_SERVICE_LMTD_DISCOVER;
+        else
+            service_class &= ~BTM_COD_SERVICE_LMTD_DISCOVER;
+
+        FIELDS_TO_COD(cod, minor, major, service_class);
+        (void) BTM_SetDeviceClass (cod);
+    }
+
+    return (BTM_SUCCESS);
+}
+
+/*******************************************************************************
+**
+** Function         BTM_SetInquiryScanType
+**
+** Description      This function is called to set the iquiry scan-type to
+**                  standard or interlaced.
+**
+** Returns          BTM_SUCCESS if successful
+**                  BTM_MODE_UNSUPPORTED if not a 1.2 device
+**                  BTM_WRONG_MODE if the device is not up.
+**
+*******************************************************************************/
+tBTM_STATUS BTM_SetInquiryScanType (UINT16 scan_type)
+{
+
+    BTM_TRACE_API ("BTM_SetInquiryScanType");
+    if (scan_type != BTM_SCAN_TYPE_STANDARD && scan_type != BTM_SCAN_TYPE_INTERLACED)
+        return (BTM_ILLEGAL_VALUE);
+
+    /* whatever app wants if device is not 1.2 scan type should be STANDARD */
+    if (!controller_get_interface()->supports_interlaced_inquiry_scan())
+     return (BTM_MODE_UNSUPPORTED);
+
+    /* Check for scan type if configuration has been changed */
+    if (scan_type != btm_cb.btm_inq_vars.inq_scan_type)
+    {
+        if (BTM_IsDeviceUp())
+        {
+            if (btsnd_hcic_write_inqscan_type ((UINT8)scan_type))
+                btm_cb.btm_inq_vars.inq_scan_type = scan_type;
+            else
+                return (BTM_NO_RESOURCES);
+        }
+        else return (BTM_WRONG_MODE);
+    }
+    return (BTM_SUCCESS);
+}
+
+/*******************************************************************************
+**
+** Function         BTM_SetPageScanType
+**
+** Description      This function is called to set the page scan-type to
+**                  standard or interlaced.
+**
+** Returns          BTM_SUCCESS if successful
+**                  BTM_MODE_UNSUPPORTED if not a 1.2 device
+**                  BTM_WRONG_MODE if the device is not up.
+**
+*******************************************************************************/
+tBTM_STATUS BTM_SetPageScanType (UINT16 scan_type)
+{
+    BTM_TRACE_API ("BTM_SetPageScanType");
+    if (scan_type != BTM_SCAN_TYPE_STANDARD && scan_type != BTM_SCAN_TYPE_INTERLACED)
+        return (BTM_ILLEGAL_VALUE);
+
+    /* whatever app wants if device is not 1.2 scan type should be STANDARD */
+    if (!controller_get_interface()->supports_interlaced_inquiry_scan())
+     return (BTM_MODE_UNSUPPORTED);
+
+    /* Check for scan type if configuration has been changed */
+    if (scan_type != btm_cb.btm_inq_vars.page_scan_type)
+    {
+        if (BTM_IsDeviceUp())
+        {
+            if (btsnd_hcic_write_pagescan_type ((UINT8)scan_type))
+                btm_cb.btm_inq_vars.page_scan_type  = scan_type;
+            else
+                return (BTM_NO_RESOURCES);
+        }
+        else return (BTM_WRONG_MODE);
+    }
+    return (BTM_SUCCESS);
+}
+
+
+/*******************************************************************************
+**
+** Function         BTM_SetInquiryMode
+**
+** Description      This function is called to set standard or with RSSI
+**                  mode of the inquiry for local device.
+**
+** Output Params:   mode - standard, with RSSI, extended
+**
+** Returns          BTM_SUCCESS if successful
+**                  BTM_NO_RESOURCES if couldn't get a memory pool buffer
+**                  BTM_ILLEGAL_VALUE if a bad parameter was detected
+**                  BTM_WRONG_MODE if the device is not up.
+**
+*******************************************************************************/
+tBTM_STATUS BTM_SetInquiryMode (UINT8 mode)
+{
+    const controller_t *controller = controller_get_interface();
+    BTM_TRACE_API ("BTM_SetInquiryMode");
+    if (mode == BTM_INQ_RESULT_STANDARD)
+    {
+        /* mandatory mode */
+    }
+    else if (mode == BTM_INQ_RESULT_WITH_RSSI)
+    {
+        if (!controller->supports_rssi_with_inquiry_results())
+            return (BTM_MODE_UNSUPPORTED);
+    }
+    else if (mode == BTM_INQ_RESULT_EXTENDED)
+    {
+        if (!controller->supports_extended_inquiry_response())
+            return (BTM_MODE_UNSUPPORTED);
+    }
+    else
+        return (BTM_ILLEGAL_VALUE);
+
+    if (!BTM_IsDeviceUp())
+        return (BTM_WRONG_MODE);
+
+    if (!btsnd_hcic_write_inquiry_mode (mode))
+        return (BTM_NO_RESOURCES);
+
+    return (BTM_SUCCESS);
+}
+
+/*******************************************************************************
+**
+** Function         BTM_ReadDiscoverability
+**
+** Description      This function is called to read the current discoverability
+**                  mode of the device.
+**
+** Output Params:   p_window - current inquiry scan duration
+**                  p_interval - current inquiry scan interval
+**
+** Returns          BTM_NON_DISCOVERABLE, BTM_LIMITED_DISCOVERABLE, or
+**                  BTM_GENERAL_DISCOVERABLE
+**
+*******************************************************************************/
+UINT16 BTM_ReadDiscoverability (UINT16 *p_window, UINT16 *p_interval)
+{
+    BTM_TRACE_API ("BTM_ReadDiscoverability");
+    if (p_window)
+        *p_window = btm_cb.btm_inq_vars.inq_scan_window;
+
+    if (p_interval)
+        *p_interval = btm_cb.btm_inq_vars.inq_scan_period;
+
+    return (btm_cb.btm_inq_vars.discoverable_mode);
+}
+
+
+/*******************************************************************************
+**
+** Function         BTM_SetPeriodicInquiryMode
+**
+** Description      This function is called to set the device periodic inquiry mode.
+**                  If the duration is zero, the periodic inquiry mode is cancelled.
+**
+**                  Note: We currently do not allow concurrent inquiry and periodic inquiry.
+**
+** Parameters:      p_inqparms - pointer to the inquiry information
+**                      mode - GENERAL or LIMITED inquiry
+**                      duration - length in 1.28 sec intervals (If '0', the inquiry is CANCELLED)
+**                      max_resps - maximum amount of devices to search for before ending the inquiry
+**                      filter_cond_type - BTM_CLR_INQUIRY_FILTER, BTM_FILTER_COND_DEVICE_CLASS, or
+**                                         BTM_FILTER_COND_BD_ADDR
+**                      filter_cond - value for the filter (based on filter_cond_type)
+**
+**                  max_delay - maximum amount of time between successive inquiries
+**                  min_delay - minimum amount of time between successive inquiries
+**                  p_results_cb - callback returning pointer to results (tBTM_INQ_RESULTS)
+**
+** Returns          BTM_CMD_STARTED if successfully started
+**                  BTM_ILLEGAL_VALUE if a bad parameter is detected
+**                  BTM_NO_RESOURCES if could not allocate a message buffer
+**                  BTM_SUCCESS - if cancelling the periodic inquiry
+**                  BTM_BUSY - if an inquiry is already active
+**                  BTM_WRONG_MODE if the device is not up.
+**
+*******************************************************************************/
+tBTM_STATUS BTM_SetPeriodicInquiryMode (tBTM_INQ_PARMS *p_inqparms, UINT16 max_delay,
+                                        UINT16 min_delay, tBTM_INQ_RESULTS_CB *p_results_cb)
+{
+    tBTM_STATUS  status;
+    tBTM_INQUIRY_VAR_ST *p_inq = &btm_cb.btm_inq_vars;
+
+    BTM_TRACE_API ("BTM_SetPeriodicInquiryMode: mode: %d, dur: %d, rsps: %d, flt: %d, min: %d, max: %d",
+        p_inqparms->mode, p_inqparms->duration, p_inqparms->max_resps,
+        p_inqparms->filter_cond_type, min_delay, max_delay);
+
+    /*** Make sure the device is ready ***/
+    if (!BTM_IsDeviceUp())
+        return (BTM_WRONG_MODE);
+
+    /* Only one active inquiry is allowed in this implementation.
+       Also do not allow an inquiry if the inquiry filter is being updated */
+    if (p_inq->inq_active || p_inq->inqfilt_active)
+        return (BTM_BUSY);
+
+    /* If illegal parameters return FALSE */
+    if (p_inqparms->mode != BTM_GENERAL_INQUIRY &&
+        p_inqparms->mode != BTM_LIMITED_INQUIRY)
+        return (BTM_ILLEGAL_VALUE);
+
+    /* Verify the parameters for this command */
+    if (p_inqparms->duration < BTM_MIN_INQUIRY_LEN     ||
+        p_inqparms->duration > BTM_MAX_INQUIRY_LENGTH  ||
+        min_delay <= p_inqparms->duration              ||
+        min_delay < BTM_PER_INQ_MIN_MIN_PERIOD         ||
+        min_delay > BTM_PER_INQ_MAX_MIN_PERIOD         ||
+        max_delay <= min_delay                         ||
+        max_delay < BTM_PER_INQ_MIN_MAX_PERIOD)
+ /*       max_delay > BTM_PER_INQ_MAX_MAX_PERIOD)*/
+ /*  BTM_PER_INQ_MAX_MAX_PERIOD set to 1's in all bits. Condition resulting in false always*/
+    {
+        return (BTM_ILLEGAL_VALUE);
+    }
+
+    /* Save the inquiry parameters to be used upon the completion of setting/clearing the inquiry filter */
+    p_inq->inqparms = *p_inqparms;
+    p_inq->per_min_delay = min_delay;
+    p_inq->per_max_delay = max_delay;
+    p_inq->inq_cmpl_info.num_resp = 0;         /* Clear the results counter */
+    p_inq->p_inq_results_cb = p_results_cb;
+
+    p_inq->inq_active = (UINT8)((p_inqparms->mode == BTM_LIMITED_INQUIRY) ?
+                            (BTM_LIMITED_INQUIRY_ACTIVE | BTM_PERIODIC_INQUIRY_ACTIVE) :
+                            (BTM_GENERAL_INQUIRY_ACTIVE | BTM_PERIODIC_INQUIRY_ACTIVE));
+
+    /* If a filter is specified, then save it for later and clear the current filter.
+       The setting of the filter is done upon completion of clearing of the previous
+       filter.
+    */
+    if (p_inqparms->filter_cond_type != BTM_CLR_INQUIRY_FILTER)
+    {
+        p_inq->state = BTM_INQ_CLR_FILT_STATE;
+        p_inqparms->filter_cond_type = BTM_CLR_INQUIRY_FILTER;
+    }
+    else    /* The filter is not being used so simply clear it; the inquiry can start after this operation */
+        p_inq->state = BTM_INQ_SET_FILT_STATE;
+
+    /* Before beginning the inquiry the current filter must be cleared, so initiate the command */
+    if ((status = btm_set_inq_event_filter (p_inqparms->filter_cond_type, &p_inqparms->filter_cond)) != BTM_CMD_STARTED)
+    {
+        /* If set filter command is not succesful reset the state */
+        p_inq->p_inq_results_cb = NULL;
+        p_inq->state = BTM_INQ_INACTIVE_STATE;
+
+    }
+
+    return (status);
+}
+
+
+/*******************************************************************************
+**
+** Function         BTM_CancelPeriodicInquiry
+**
+** Description      This function cancels a periodic inquiry
+**
+** Returns
+**                  BTM_NO_RESOURCES if could not allocate a message buffer
+**                  BTM_SUCCESS - if cancelling the periodic inquiry
+**                  BTM_WRONG_MODE if the device is not up.
+**
+*******************************************************************************/
+tBTM_STATUS BTM_CancelPeriodicInquiry(void)
+{
+    tBTM_INQUIRY_VAR_ST *p_inq = &btm_cb.btm_inq_vars;
+    tBTM_STATUS          status = BTM_SUCCESS;
+    BTM_TRACE_API ("BTM_CancelPeriodicInquiry called");
+
+    /*** Make sure the device is ready ***/
+    if (!BTM_IsDeviceUp())
+        return (BTM_WRONG_MODE);
+
+    /* Only cancel if one is active */
+    if (btm_cb.btm_inq_vars.inq_active & BTM_PERIODIC_INQUIRY_ACTIVE)
+    {
+        btm_cb.btm_inq_vars.inq_active = BTM_INQUIRY_INACTIVE;
+        btm_cb.btm_inq_vars.p_inq_results_cb = (tBTM_INQ_RESULTS_CB *) NULL;
+
+        if (!btsnd_hcic_exit_per_inq ())
+            status = BTM_NO_RESOURCES;
+
+        /* If the event filter is in progress, mark it so that the processing of the return
+           event will be ignored */
+        if(p_inq->inqfilt_active)
+            p_inq->pending_filt_complete_event++;
+
+        p_inq->inqfilt_active = FALSE;
+        p_inq->inq_counter++;
+    }
+
+    return (status);
+}
+
+
+/*******************************************************************************
+**
+** Function         BTM_SetConnectability
+**
+** Description      This function is called to set the device into or out of
+**                  connectable mode. Discoverable mode means page scans enabled.
+**
+** Returns          BTM_SUCCESS if successful
+**                  BTM_ILLEGAL_VALUE if a bad parameter is detected
+**                  BTM_NO_RESOURCES if could not allocate a message buffer
+**                  BTM_WRONG_MODE if the device is not up.
+**
+*******************************************************************************/
+tBTM_STATUS BTM_SetConnectability (UINT16 page_mode, UINT16 window, UINT16 interval)
+{
+    UINT8    scan_mode = 0;
+    tBTM_INQUIRY_VAR_ST *p_inq = &btm_cb.btm_inq_vars;
+
+    BTM_TRACE_API ("BTM_SetConnectability");
+
+#if (BLE_INCLUDED == TRUE && BLE_INCLUDED == TRUE)
+    if (controller_get_interface()->supports_ble())
+    {
+        if (btm_ble_set_connectability(page_mode) != BTM_SUCCESS)
+        {
+            return BTM_NO_RESOURCES;
+        }
+        p_inq->connectable_mode &= (~BTM_BLE_CONNECTABLE_MASK);
+        p_inq->connectable_mode |= (page_mode & BTM_BLE_CONNECTABLE_MASK);
+    }
+    page_mode &= ~BTM_BLE_CONNECTABLE_MASK;
+#endif
+
+    /*** Check mode parameter ***/
+    if (page_mode != BTM_NON_CONNECTABLE && page_mode != BTM_CONNECTABLE)
+        return (BTM_ILLEGAL_VALUE);
+
+    /* Make sure the controller is active */
+    if (!controller_get_interface()->get_is_ready())
+        return (BTM_DEV_RESET);
+
+    /* If the window and/or interval is '0', set to default values */
+    if (!window)
+        window = BTM_DEFAULT_CONN_WINDOW;
+
+    if (!interval)
+        interval = BTM_DEFAULT_CONN_INTERVAL;
+
+    BTM_TRACE_API ("BTM_SetConnectability: mode %d [NonConn-0, Conn-1], window 0x%04x, interval 0x%04x",
+                        page_mode, window, interval);
+
+    /*** Check for valid window and interval parameters ***/
+    /*** Only check window and duration if mode is connectable ***/
+    if (page_mode == BTM_CONNECTABLE)
+    {
+        /* window must be less than or equal to interval */
+        if (window < HCI_MIN_PAGESCAN_WINDOW     ||
+            window > HCI_MAX_PAGESCAN_WINDOW     ||
+            interval < HCI_MIN_PAGESCAN_INTERVAL ||
+            interval > HCI_MAX_PAGESCAN_INTERVAL ||
+            window > interval)
+        {
+            return (BTM_ILLEGAL_VALUE);
+        }
+
+        scan_mode |= HCI_PAGE_SCAN_ENABLED;
+    }
+
+    if ((window != p_inq->page_scan_window) ||
+        (interval != p_inq->page_scan_period))
+    {
+        p_inq->page_scan_window = window;
+        p_inq->page_scan_period = interval;
+        if (!btsnd_hcic_write_pagescan_cfg (interval, window))
+            return (BTM_NO_RESOURCES);
+    }
+
+    /* Keep the inquiry scan as previouosly set */
+    if (p_inq->discoverable_mode & BTM_DISCOVERABLE_MASK)
+        scan_mode |= HCI_INQUIRY_SCAN_ENABLED;
+
+    if (btsnd_hcic_write_scan_enable (scan_mode))
+    {
+        p_inq->connectable_mode &= (~BTM_CONNECTABLE_MASK);
+        p_inq->connectable_mode |= page_mode;
+
+        return (BTM_SUCCESS);
+    }
+
+    return (BTM_NO_RESOURCES);
+}
+
+
+/*******************************************************************************
+**
+** Function         BTM_ReadConnectability
+**
+** Description      This function is called to read the current discoverability
+**                  mode of the device.
+** Output Params    p_window - current page scan duration
+**                  p_interval - current time between page scans
+**
+** Returns          BTM_NON_CONNECTABLE or BTM_CONNECTABLE
+**
+*******************************************************************************/
+UINT16 BTM_ReadConnectability (UINT16 *p_window, UINT16 *p_interval)
+{
+    BTM_TRACE_API ("BTM_ReadConnectability");
+    if (p_window)
+        *p_window = btm_cb.btm_inq_vars.page_scan_window;
+
+    if (p_interval)
+        *p_interval = btm_cb.btm_inq_vars.page_scan_period;
+
+    return (btm_cb.btm_inq_vars.connectable_mode);
+}
+
+
+
+/*******************************************************************************
+**
+** Function         BTM_IsInquiryActive
+**
+** Description      This function returns a bit mask of the current inquiry state
+**
+** Returns          BTM_INQUIRY_INACTIVE if inactive (0)
+**                  BTM_LIMITED_INQUIRY_ACTIVE if a limted inquiry is active
+**                  BTM_GENERAL_INQUIRY_ACTIVE if a general inquiry is active
+**                  BTM_PERIODIC_INQUIRY_ACTIVE if a periodic inquiry is active
+**
+*******************************************************************************/
+UINT16 BTM_IsInquiryActive (void)
+{
+    BTM_TRACE_API ("BTM_IsInquiryActive");
+
+    return(btm_cb.btm_inq_vars.inq_active);
+}
+
+
+
+/*******************************************************************************
+**
+** Function         BTM_CancelInquiry
+**
+** Description      This function cancels an inquiry if active
+**
+** Returns          BTM_SUCCESS if successful
+**                  BTM_NO_RESOURCES if could not allocate a message buffer
+**                  BTM_WRONG_MODE if the device is not up.
+**
+*******************************************************************************/
+tBTM_STATUS BTM_CancelInquiry(void)
+{
+    tBTM_STATUS           status = BTM_SUCCESS;
+    tBTM_INQUIRY_VAR_ST *p_inq = &btm_cb.btm_inq_vars;
+#if (defined(BTA_HOST_INTERLEAVE_SEARCH) && BTA_HOST_INTERLEAVE_SEARCH == TRUE)
+    UINT8 active_mode=p_inq->inq_active;
+#endif
+    BTM_TRACE_API ("BTM_CancelInquiry called");
+
+    /*** Make sure the device is ready ***/
+    if (!BTM_IsDeviceUp())
+        return (BTM_WRONG_MODE);
+
+    /* Only cancel if not in periodic mode, otherwise the caller should call BTM_CancelPeriodicMode */
+    if ((p_inq->inq_active &BTM_INQUIRY_ACTIVE_MASK) != 0 &&
+        (!(p_inq->inq_active & BTM_PERIODIC_INQUIRY_ACTIVE)))
+    {
+        p_inq->inq_active = BTM_INQUIRY_INACTIVE;
+        p_inq->state = BTM_INQ_INACTIVE_STATE;
+        p_inq->p_inq_results_cb = (tBTM_INQ_RESULTS_CB *) NULL; /* Do not notify caller anymore */
+        p_inq->p_inq_cmpl_cb = (tBTM_CMPL_CB *) NULL;    /* Do not notify caller anymore */
+
+        /* If the event filter is in progress, mark it so that the processing of the return
+            event will be ignored */
+        if (p_inq->inqfilt_active)
+        {
+            p_inq->inqfilt_active = FALSE;
+            p_inq->pending_filt_complete_event++;
+        }
+         /* Initiate the cancel inquiry */
+        else
+        {
+            if (((p_inq->inqparms.mode & BTM_BR_INQUIRY_MASK) != 0)
+#if (defined(BTA_HOST_INTERLEAVE_SEARCH) && BTA_HOST_INTERLEAVE_SEARCH == TRUE)
+            &&(active_mode & BTM_BR_INQUIRY_MASK)
+#endif
+            )
+            {
+                if (!btsnd_hcic_inq_cancel())
+                    status = BTM_NO_RESOURCES;
+            }
+#if BLE_INCLUDED == TRUE
+            if (((p_inq->inqparms.mode & BTM_BLE_INQUIRY_MASK) != 0)
+#if (defined(BTA_HOST_INTERLEAVE_SEARCH) && BTA_HOST_INTERLEAVE_SEARCH == TRUE)
+            &&(active_mode & BTM_BLE_INQ_ACTIVE_MASK)
+#endif
+            )
+                btm_ble_stop_inquiry();
+#endif
+        }
+
+        /* Do not send the BUSY_LEVEL event yet. Wait for the cancel_complete event
+         * and then send the BUSY_LEVEL event
+         * btm_acl_update_busy_level (BTM_BLI_INQ_DONE_EVT);
+         */
+
+         p_inq->inq_counter++;
+         btm_clr_inq_result_flt();
+    }
+
+    return (status);
+}
+
+
+/*******************************************************************************
+**
+** Function         BTM_StartInquiry
+**
+** Description      This function is called to start an inquiry.
+**
+** Parameters:      p_inqparms - pointer to the inquiry information
+**                      mode - GENERAL or LIMITED inquiry, BR/LE bit mask seperately
+**                      duration - length in 1.28 sec intervals (If '0', the inquiry is CANCELLED)
+**                      max_resps - maximum amount of devices to search for before ending the inquiry
+**                      filter_cond_type - BTM_CLR_INQUIRY_FILTER, BTM_FILTER_COND_DEVICE_CLASS, or
+**                                         BTM_FILTER_COND_BD_ADDR
+**                      filter_cond - value for the filter (based on filter_cond_type)
+**
+**                  p_results_cb   - Pointer to the callback routine which gets called
+**                                upon receipt of an inquiry result. If this field is
+**                                NULL, the application is not notified.
+**
+**                  p_cmpl_cb   - Pointer to the callback routine which gets called
+**                                upon completion.  If this field is NULL, the
+**                                application is not notified when completed.
+** Returns          tBTM_STATUS
+**                  BTM_CMD_STARTED if successfully initiated
+**                  BTM_BUSY if already in progress
+**                  BTM_ILLEGAL_VALUE if parameter(s) are out of range
+**                  BTM_NO_RESOURCES if could not allocate resources to start the command
+**                  BTM_WRONG_MODE if the device is not up.
+**
+*******************************************************************************/
+tBTM_STATUS BTM_StartInquiry (tBTM_INQ_PARMS *p_inqparms, tBTM_INQ_RESULTS_CB *p_results_cb,
+                              tBTM_CMPL_CB *p_cmpl_cb)
+{
+    tBTM_STATUS  status = BTM_CMD_STARTED;
+    tBTM_INQUIRY_VAR_ST *p_inq = &btm_cb.btm_inq_vars;
+
+    BTM_TRACE_API ("BTM_StartInquiry: mode: %d, dur: %d, rsps: %d, flt: %d",
+                        p_inqparms->mode, p_inqparms->duration, p_inqparms->max_resps,
+                        p_inqparms->filter_cond_type);
+
+    /* Only one active inquiry is allowed in this implementation.
+       Also do not allow an inquiry if the inquiry filter is being updated */
+    if (p_inq->inq_active || p_inq->inqfilt_active)
+    {
+#if (defined BLE_INCLUDED && BLE_INCLUDED == TRUE)
+        /*check if LE observe is already running*/
+        if(p_inq->scan_type==INQ_LE_OBSERVE && p_inq->p_inq_ble_results_cb!=NULL)
+        {
+            BTM_TRACE_API("BTM_StartInquiry: LE observe in progress");
+            p_inq->scan_type = INQ_GENERAL;
+            p_inq->inq_active = BTM_INQUIRY_INACTIVE;
+            btm_cb.ble_ctr_cb.inq_var.scan_type = BTM_BLE_SCAN_MODE_NONE;
+            btsnd_hcic_ble_set_scan_enable (BTM_BLE_SCAN_DISABLE, BTM_BLE_DUPLICATE_ENABLE);
+        }
+        else
+#endif
+        {
+            return (BTM_BUSY);
+            BTM_TRACE_API("BTM_StartInquiry: return BUSY");
+        }
+    }
+    else
+        p_inq->scan_type = INQ_GENERAL;
+
+        /*** Make sure the device is ready ***/
+    if (!BTM_IsDeviceUp())
+        return (BTM_WRONG_MODE);
+
+    if ((p_inqparms->mode & BTM_BR_INQUIRY_MASK)!= BTM_GENERAL_INQUIRY &&
+        (p_inqparms->mode & BTM_BR_INQUIRY_MASK)!= BTM_LIMITED_INQUIRY
+#if (BLE_INCLUDED == TRUE)
+        && (p_inqparms->mode & BTM_BLE_INQUIRY_MASK)!= BTM_BLE_GENERAL_INQUIRY
+        && (p_inqparms->mode & BTM_BLE_INQUIRY_MASK)!= BTM_BLE_LIMITED_INQUIRY
+#endif
+        )
+        return (BTM_ILLEGAL_VALUE);
+
+#if (defined(BTA_HOST_INTERLEAVE_SEARCH) && BTA_HOST_INTERLEAVE_SEARCH == TRUE)
+        if(p_inq->next_state==BTM_FINISH)
+            return BTM_ILLEGAL_VALUE;
+#endif
+
+
+    /* Save the inquiry parameters to be used upon the completion of setting/clearing the inquiry filter */
+    p_inq->inqparms = *p_inqparms;
+
+    /* Initialize the inquiry variables */
+    p_inq->state = BTM_INQ_ACTIVE_STATE;
+    p_inq->p_inq_cmpl_cb = p_cmpl_cb;
+    p_inq->p_inq_results_cb = p_results_cb;
+    p_inq->inq_cmpl_info.num_resp = 0;         /* Clear the results counter */
+    p_inq->inq_active = p_inqparms->mode;
+
+    BTM_TRACE_DEBUG("BTM_StartInquiry: p_inq->inq_active = 0x%02x", p_inq->inq_active);
+
+/* interleave scan minimal conditions */
+#if (BLE_INCLUDED==TRUE && (defined(BTA_HOST_INTERLEAVE_SEARCH) && BTA_HOST_INTERLEAVE_SEARCH == TRUE))
+
+    /* check if both modes are present */
+    if((p_inqparms->mode & BTM_BLE_INQUIRY_MASK) && (p_inqparms->mode & BTM_BR_INQUIRY_MASK))
+    {
+        BTM_TRACE_API("BTM:Interleave Inquiry Mode Set");
+        p_inqparms->duration=p_inqparms->intl_duration[p_inq->next_state];
+        p_inq->inqparms.duration=p_inqparms->duration;
+    }
+    else
+    {
+        BTM_TRACE_API("BTM:Single Mode: No interleaving, Mode:0x%02x", p_inqparms->mode);
+        p_inq->next_state=BTM_NO_INTERLEAVING;
+    }
+#endif
+
+
+
+/* start LE inquiry here if requested */
+#if BLE_INCLUDED == TRUE
+    if ((p_inqparms->mode & BTM_BLE_INQUIRY_MASK)
+#if (defined(BTA_HOST_INTERLEAVE_SEARCH) && BTA_HOST_INTERLEAVE_SEARCH == TRUE)
+        &&(p_inq->next_state==BTM_BLE_ONE || p_inq->next_state==BTM_BLE_TWO ||
+           p_inq->next_state==BTM_NO_INTERLEAVING)
+#endif
+        )
+
+    {
+#if (defined(BTA_HOST_INTERLEAVE_SEARCH) && BTA_HOST_INTERLEAVE_SEARCH == TRUE)
+        p_inq->inq_active = (p_inqparms->mode & BTM_BLE_INQUIRY_MASK);
+        BTM_TRACE_API("BTM:Starting LE Scan with duration %d and activeMode:0x%02x",
+                       p_inqparms->duration, (p_inqparms->mode & BTM_BLE_INQUIRY_MASK));
+#endif
+        if (!controller_get_interface()->supports_ble())
+        {
+            p_inq->inqparms.mode &= ~ BTM_BLE_INQUIRY_MASK;
+            status = BTM_ILLEGAL_VALUE;
+        }
+        /* BLE for now does not support filter condition for inquiry */
+        else if ((status = btm_ble_start_inquiry((UINT8)(p_inqparms->mode & BTM_BLE_INQUIRY_MASK),
+                                            p_inqparms->duration)) != BTM_CMD_STARTED)
+        {
+            BTM_TRACE_ERROR("Err Starting LE Inquiry.");
+            p_inq->inqparms.mode &= ~ BTM_BLE_INQUIRY_MASK;
+        }
+#if (!defined(BTA_HOST_INTERLEAVE_SEARCH) || BTA_HOST_INTERLEAVE_SEARCH == FALSE)
+        p_inqparms->mode &= ~BTM_BLE_INQUIRY_MASK;
+#endif
+
+#if (defined(BTA_HOST_INTERLEAVE_SEARCH) && BTA_HOST_INTERLEAVE_SEARCH == TRUE)
+        if(p_inq->next_state==BTM_NO_INTERLEAVING)
+        {
+            p_inq->next_state=BTM_FINISH;
+        }
+        else
+        {
+            BTM_TRACE_API("BTM:Interleaving: started LE scan, Advancing to next state: %d",
+                           p_inq->next_state+1);
+            p_inq->next_state+=1;
+        }
+        /* reset next_state if status <> BTM_Started */
+        if(status!=BTM_CMD_STARTED)
+            p_inq->next_state=BTM_BR_ONE;
+
+        /* if interleave scan..return here */
+        return status;
+#endif
+
+
+        BTM_TRACE_DEBUG("BTM_StartInquiry: mode = %02x", p_inqparms->mode);
+    }
+#endif /* end of BLE_INCLUDED */
+
+    /* we're done with this routine if BR/EDR inquiry is not desired. */
+    if ((p_inqparms->mode & BTM_BR_INQUIRY_MASK) == BTM_INQUIRY_NONE)
+        return status;
+
+    /* BR/EDR inquiry portion */
+#if (defined(BTA_HOST_INTERLEAVE_SEARCH) && BTA_HOST_INTERLEAVE_SEARCH == TRUE)
+    if((p_inq->next_state==BTM_BR_ONE || p_inq->next_state==BTM_BR_TWO ||
+        p_inq->next_state==BTM_NO_INTERLEAVING ))
+    {
+        p_inq->inq_active = (p_inqparms->mode & BTM_BR_INQUIRY_MASK);
+#endif
+    /* If a filter is specified, then save it for later and clear the current filter.
+       The setting of the filter is done upon completion of clearing of the previous
+       filter.
+    */
+    switch (p_inqparms->filter_cond_type)
+    {
+    case BTM_CLR_INQUIRY_FILTER:
+        p_inq->state = BTM_INQ_SET_FILT_STATE;
+        break;
+
+    case BTM_FILTER_COND_DEVICE_CLASS:
+    case BTM_FILTER_COND_BD_ADDR:
+        /* The filter is not being used so simply clear it;
+            the inquiry can start after this operation */
+        p_inq->state = BTM_INQ_CLR_FILT_STATE;
+        p_inqparms->filter_cond_type = BTM_CLR_INQUIRY_FILTER;
+        /* =============>>>> adding LE filtering here ????? */
+        break;
+
+    default:
+        return (BTM_ILLEGAL_VALUE);
+    }
+
+    /* Before beginning the inquiry the current filter must be cleared, so initiate the command */
+    if ((status = btm_set_inq_event_filter (p_inqparms->filter_cond_type,
+                                            &p_inqparms->filter_cond)) != BTM_CMD_STARTED)
+        p_inq->state = BTM_INQ_INACTIVE_STATE;
+
+#if (defined(BTA_HOST_INTERLEAVE_SEARCH) && BTA_HOST_INTERLEAVE_SEARCH == TRUE)
+        if (p_inq->next_state==BTM_NO_INTERLEAVING)
+            p_inq->next_state=BTM_FINISH;
+        else
+        {
+            BTM_TRACE_API("BTM:Interleaving: Started BTM inq, Advancing to next state: %d",
+                           p_inq->next_state+1);
+            p_inq->next_state+=1;
+        }
+     }
+     if (status!=BTM_CMD_STARTED)
+     {
+         /* Some error beginning the scan process.
+            Reset the next_state parameter.. Do we need to reset the inq_active also?
+         */
+        BTM_TRACE_API("BTM:Interleaving: Error in Starting inquiry, status: 0x%02x", status);
+        p_inq->next_state=BTM_BR_ONE;
+     }
+#endif
+
+
+    return (status);
+}
+
+
+/*******************************************************************************
+**
+** Function         BTM_ReadRemoteDeviceName
+**
+** Description      This function initiates a remote device HCI command to the
+**                  controller and calls the callback when the process has completed.
+**
+** Input Params:    remote_bda      - device address of name to retrieve
+**                  p_cb            - callback function called when BTM_CMD_STARTED
+**                                    is returned.
+**                                    A pointer to tBTM_REMOTE_DEV_NAME is passed to the
+**                                    callback.
+**
+** Returns
+**                  BTM_CMD_STARTED is returned if the request was successfully sent
+**                                  to HCI.
+**                  BTM_BUSY if already in progress
+**                  BTM_UNKNOWN_ADDR if device address is bad
+**                  BTM_NO_RESOURCES if could not allocate resources to start the command
+**                  BTM_WRONG_MODE if the device is not up.
+**
+*******************************************************************************/
+tBTM_STATUS  BTM_ReadRemoteDeviceName (BD_ADDR remote_bda, tBTM_CMPL_CB *p_cb
+                                                ,tBT_TRANSPORT transport)
+{
+    tBTM_INQ_INFO   *p_cur = NULL;
+    tINQ_DB_ENT     *p_i;
+
+    BTM_TRACE_API ("BTM_ReadRemoteDeviceName: bd addr [%02x%02x%02x%02x%02x%02x]",
+               remote_bda[0], remote_bda[1], remote_bda[2],
+               remote_bda[3], remote_bda[4], remote_bda[5]);
+
+    /* Use the remote device's clock offset if it is in the local inquiry database */
+    if ((p_i = btm_inq_db_find (remote_bda)) != NULL)
+    {
+        p_cur = &p_i->inq_info;
+    }
+    BTM_TRACE_API ("no device found in inquiry db");
+
+#if (BLE_INCLUDED == TRUE)
+    if (transport == BT_TRANSPORT_LE)
+    {
+        return btm_ble_read_remote_name(remote_bda, p_cur, p_cb);
+    }
+    else
+#endif
+
+    return (btm_initiate_rem_name (remote_bda, p_cur, BTM_RMT_NAME_EXT,
+                                   BTM_EXT_RMT_NAME_TIMEOUT_MS, p_cb));
+}
+
+/*******************************************************************************
+**
+** Function         BTM_CancelRemoteDeviceName
+**
+** Description      This function initiates the cancel request for the specified
+**                  remote device.
+**
+** Input Params:    None
+**
+** Returns
+**                  BTM_CMD_STARTED is returned if the request was successfully sent
+**                                  to HCI.
+**                  BTM_NO_RESOURCES if could not allocate resources to start the command
+**                  BTM_WRONG_MODE if there is not an active remote name request.
+**
+*******************************************************************************/
+tBTM_STATUS  BTM_CancelRemoteDeviceName (void)
+{
+    tBTM_INQUIRY_VAR_ST *p_inq = &btm_cb.btm_inq_vars;
+
+    BTM_TRACE_API ("BTM_CancelRemoteDeviceName()");
+
+    /* Make sure there is not already one in progress */
+    if (p_inq->remname_active)
+    {
+#if BLE_INCLUDED == TRUE
+        if (BTM_UseLeLink(p_inq->remname_bda))
+        {
+            if (btm_ble_cancel_remote_name(p_inq->remname_bda))
+                return (BTM_CMD_STARTED);
+            else
+                return (BTM_UNKNOWN_ADDR);
+        }
+        else
+#endif
+        if (btsnd_hcic_rmt_name_req_cancel (p_inq->remname_bda))
+            return (BTM_CMD_STARTED);
+        else
+            return (BTM_NO_RESOURCES);
+    }
+    else
+        return (BTM_WRONG_MODE);
+}
+
+/*******************************************************************************
+**
+** Function         BTM_InqDbRead
+**
+** Description      This function looks through the inquiry database for a match
+**                  based on Bluetooth Device Address. This is the application's
+**                  interface to get the inquiry details of a specific BD address.
+**
+** Returns          pointer to entry, or NULL if not found
+**
+*******************************************************************************/
+tBTM_INQ_INFO *BTM_InqDbRead (BD_ADDR p_bda)
+{
+    BTM_TRACE_API ("BTM_InqDbRead: bd addr [%02x%02x%02x%02x%02x%02x]",
+               p_bda[0], p_bda[1], p_bda[2], p_bda[3], p_bda[4], p_bda[5]);
+
+    tINQ_DB_ENT *p_ent = btm_inq_db_find(p_bda);
+    if (!p_ent)
+      return NULL;
+
+    return &p_ent->inq_info;
+}
+
+
+/*******************************************************************************
+**
+** Function         BTM_InqDbFirst
+**
+** Description      This function looks through the inquiry database for the first
+**                  used entry, and returns that. This is used in conjunction with
+**                  BTM_InqDbNext by applications as a way to walk through the
+**                  inquiry database.
+**
+** Returns          pointer to first in-use entry, or NULL if DB is empty
+**
+*******************************************************************************/
+tBTM_INQ_INFO *BTM_InqDbFirst (void)
+{
+    UINT16       xx;
+    tINQ_DB_ENT  *p_ent = btm_cb.btm_inq_vars.inq_db;
+
+    for (xx = 0; xx < BTM_INQ_DB_SIZE; xx++, p_ent++)
+    {
+        if (p_ent->in_use)
+            return (&p_ent->inq_info);
+    }
+
+    /* If here, no used entry found */
+    return ((tBTM_INQ_INFO *)NULL);
+}
+
+
+/*******************************************************************************
+**
+** Function         BTM_InqDbNext
+**
+** Description      This function looks through the inquiry database for the next
+**                  used entry, and returns that.  If the input parameter is NULL,
+**                  the first entry is returned.
+**
+** Returns          pointer to next in-use entry, or NULL if no more found.
+**
+*******************************************************************************/
+tBTM_INQ_INFO *BTM_InqDbNext (tBTM_INQ_INFO *p_cur)
+{
+    tINQ_DB_ENT  *p_ent;
+    UINT16        inx;
+
+    if (p_cur)
+    {
+        p_ent = (tINQ_DB_ENT *) ((UINT8 *)p_cur - offsetof (tINQ_DB_ENT, inq_info));
+        inx = (UINT16)((p_ent - btm_cb.btm_inq_vars.inq_db) + 1);
+
+        for (p_ent = &btm_cb.btm_inq_vars.inq_db[inx]; inx < BTM_INQ_DB_SIZE; inx++, p_ent++)
+        {
+            if (p_ent->in_use)
+                return (&p_ent->inq_info);
+        }
+
+        /* If here, more entries found */
+        return ((tBTM_INQ_INFO *)NULL);
+    }
+    else
+        return (BTM_InqDbFirst());
+}
+
+
+/*******************************************************************************
+**
+** Function         BTM_ClearInqDb
+**
+** Description      This function is called to clear out a device or all devices
+**                  from the inquiry database.
+**
+** Parameter        p_bda - (input) BD_ADDR ->  Address of device to clear
+**                                              (NULL clears all entries)
+**
+** Returns          BTM_BUSY if an inquiry, get remote name, or event filter
+**                          is active, otherwise BTM_SUCCESS
+**
+*******************************************************************************/
+tBTM_STATUS BTM_ClearInqDb (BD_ADDR p_bda)
+{
+    tBTM_INQUIRY_VAR_ST     *p_inq = &btm_cb.btm_inq_vars;
+
+    /* If an inquiry or remote name is in progress return busy */
+    if (p_inq->inq_active != BTM_INQUIRY_INACTIVE ||
+        p_inq->inqfilt_active)
+        return (BTM_BUSY);
+
+    btm_clr_inq_db(p_bda);
+
+    return (BTM_SUCCESS);
+}
+
+/*******************************************************************************
+**
+** Function         BTM_ReadInquiryRspTxPower
+**
+** Description      This command will read the inquiry Transmit Power level used
+**                  to transmit the FHS and EIR data packets.
+**                  This can be used directly in the Tx Power Level EIR data type.
+**
+** Returns          BTM_SUCCESS if successful
+**
+*******************************************************************************/
+tBTM_STATUS BTM_ReadInquiryRspTxPower (tBTM_CMPL_CB *p_cb)
+{
+    if (btm_cb.devcb.p_inq_tx_power_cmpl_cb)
+        return (BTM_BUSY);
+
+    btm_cb.devcb.p_inq_tx_power_cmpl_cb = p_cb;
+    alarm_set_on_queue(btm_cb.devcb.read_inq_tx_power_timer,
+                       BTM_INQ_REPLY_TIMEOUT_MS,
+                       btm_read_inq_tx_power_timeout, NULL,
+                       btu_general_alarm_queue);
+
+    if (!btsnd_hcic_read_inq_tx_power ())
+    {
+        btm_cb.devcb.p_inq_tx_power_cmpl_cb = NULL;
+        alarm_cancel(btm_cb.devcb.read_inq_tx_power_timer);
+        return (BTM_NO_RESOURCES);
+    }
+    else
+        return (BTM_CMD_STARTED);
+}
+
+/*********************************************************************************
+**********************************************************************************
+**                                                                              **
+**                      BTM Internal Inquiry Functions                          **
+**                                                                              **
+**********************************************************************************
+*********************************************************************************/
+/*******************************************************************************
+**
+** Function         btm_inq_db_reset
+**
+** Description      This function is called at at reset to clear the inquiry
+**                  database & pending callback.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_inq_db_reset (void)
+{
+    tBTM_REMOTE_DEV_NAME     rem_name;
+    tBTM_INQUIRY_VAR_ST     *p_inq = &btm_cb.btm_inq_vars;
+    UINT8                    num_responses;
+    UINT8                    temp_inq_active;
+    tBTM_STATUS              status;
+
+    /* If an inquiry or periodic inquiry is active, reset the mode to inactive */
+    if (p_inq->inq_active != BTM_INQUIRY_INACTIVE)
+    {
+        temp_inq_active = p_inq->inq_active;    /* Save so state can change BEFORE
+                                                       callback is called */
+        p_inq->inq_active = BTM_INQUIRY_INACTIVE;
+
+        /* If not a periodic inquiry, the complete callback must be called to notify caller */
+        if (temp_inq_active == BTM_LIMITED_INQUIRY_ACTIVE ||
+            temp_inq_active == BTM_GENERAL_INQUIRY_ACTIVE)
+        {
+            if (p_inq->p_inq_cmpl_cb)
+            {
+                num_responses = 0;
+                (*p_inq->p_inq_cmpl_cb)(&num_responses);
+            }
+        }
+    }
+
+    /* Cancel a remote name request if active, and notify the caller (if waiting) */
+    if (p_inq->remname_active )
+    {
+        alarm_cancel(p_inq->remote_name_timer);
+        p_inq->remname_active = FALSE;
+        memset(p_inq->remname_bda, 0, BD_ADDR_LEN);
+
+        if (p_inq->p_remname_cmpl_cb)
+        {
+            rem_name.status = BTM_DEV_RESET;
+
+            (*p_inq->p_remname_cmpl_cb)(&rem_name);
+            p_inq->p_remname_cmpl_cb = NULL;
+        }
+    }
+
+    /* Cancel an inquiry filter request if active, and notify the caller (if waiting) */
+    if (p_inq->inqfilt_active)
+    {
+        p_inq->inqfilt_active = FALSE;
+
+        if (p_inq->p_inqfilter_cmpl_cb)
+        {
+            status = BTM_DEV_RESET;
+            (*p_inq->p_inqfilter_cmpl_cb)(&status);
+        }
+    }
+
+    p_inq->state = BTM_INQ_INACTIVE_STATE;
+    p_inq->pending_filt_complete_event = 0;
+    p_inq->p_inq_results_cb = NULL;
+    btm_clr_inq_db(NULL);   /* Clear out all the entries in the database */
+    btm_clr_inq_result_flt();
+
+    p_inq->discoverable_mode = BTM_NON_DISCOVERABLE;
+    p_inq->connectable_mode  = BTM_NON_CONNECTABLE;
+    p_inq->page_scan_type    = BTM_SCAN_TYPE_STANDARD;
+    p_inq->inq_scan_type     = BTM_SCAN_TYPE_STANDARD;
+
+#if BLE_INCLUDED == TRUE
+    p_inq->discoverable_mode |= BTM_BLE_NON_DISCOVERABLE;
+    p_inq->connectable_mode  |= BTM_BLE_NON_CONNECTABLE;
+#endif
+    return;
+}
+
+
+/*********************************************************************************
+**
+** Function         btm_inq_db_init
+**
+** Description      This function is called at startup to initialize the inquiry
+**                  database.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_inq_db_init (void)
+{
+#if 0  /* cleared in btm_init; put back in if called from anywhere else! */
+    memset (&btm_cb.btm_inq_vars, 0, sizeof (tBTM_INQUIRY_VAR_ST));
+#endif
+    alarm_free(btm_cb.btm_inq_vars.remote_name_timer);
+    btm_cb.btm_inq_vars.remote_name_timer =
+        alarm_new("btm_inq.remote_name_timer");
+    btm_cb.btm_inq_vars.no_inc_ssp = BTM_NO_SSP_ON_INQUIRY;
+}
+
+/*********************************************************************************
+**
+** Function         btm_inq_stop_on_ssp
+**
+** Description      This function is called on incoming SSP
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_inq_stop_on_ssp(void)
+{
+    UINT8 normal_active = (BTM_GENERAL_INQUIRY_ACTIVE|BTM_LIMITED_INQUIRY_ACTIVE);
+
+#if (BTM_INQ_DEBUG == TRUE)
+    BTM_TRACE_DEBUG ("btm_inq_stop_on_ssp: no_inc_ssp=%d inq_active:0x%x state:%d inqfilt_active:%d",
+        btm_cb.btm_inq_vars.no_inc_ssp, btm_cb.btm_inq_vars.inq_active, btm_cb.btm_inq_vars.state, btm_cb.btm_inq_vars.inqfilt_active);
+#endif
+    if (btm_cb.btm_inq_vars.no_inc_ssp)
+    {
+        if (btm_cb.btm_inq_vars.state == BTM_INQ_ACTIVE_STATE)
+        {
+            if (btm_cb.btm_inq_vars.inq_active & BTM_PERIODIC_INQUIRY_ACTIVE)
+            {
+                BTM_CancelPeriodicInquiry();
+            }
+            else if (btm_cb.btm_inq_vars.inq_active & normal_active)
+            {
+                /* can not call BTM_CancelInquiry() here. We need to report inquiry complete evt */
+                btsnd_hcic_inq_cancel();
+            }
+        }
+        /* do not allow inquiry to start */
+        btm_cb.btm_inq_vars.inq_active |= BTM_SSP_INQUIRY_ACTIVE;
+    }
+}
+
+/*********************************************************************************
+**
+** Function         btm_inq_clear_ssp
+**
+** Description      This function is called when pairing_state becomes idle
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_inq_clear_ssp(void)
+{
+    btm_cb.btm_inq_vars.inq_active &= ~BTM_SSP_INQUIRY_ACTIVE;
+}
+
+/*********************************************************************************
+**
+** Function         btm_clr_inq_db
+**
+** Description      This function is called to clear out a device or all devices
+**                  from the inquiry database.
+**
+** Parameter        p_bda - (input) BD_ADDR ->  Address of device to clear
+**                                              (NULL clears all entries)
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_clr_inq_db (BD_ADDR p_bda)
+{
+    tBTM_INQUIRY_VAR_ST     *p_inq = &btm_cb.btm_inq_vars;
+    tINQ_DB_ENT             *p_ent = p_inq->inq_db;
+    UINT16                   xx;
+
+#if (BTM_INQ_DEBUG == TRUE)
+    BTM_TRACE_DEBUG ("btm_clr_inq_db: inq_active:0x%x state:%d",
+        btm_cb.btm_inq_vars.inq_active, btm_cb.btm_inq_vars.state);
+#endif
+    for (xx = 0; xx < BTM_INQ_DB_SIZE; xx++, p_ent++)
+    {
+        if (p_ent->in_use)
+        {
+            /* If this is the specified BD_ADDR or clearing all devices */
+            if (p_bda == NULL ||
+                (!memcmp (p_ent->inq_info.results.remote_bd_addr, p_bda, BD_ADDR_LEN)))
+            {
+                p_ent->in_use = FALSE;
+            }
+        }
+    }
+#if (BTM_INQ_DEBUG == TRUE)
+    BTM_TRACE_DEBUG ("inq_active:0x%x state:%d",
+        btm_cb.btm_inq_vars.inq_active, btm_cb.btm_inq_vars.state);
+#endif
+}
+
+
+/*******************************************************************************
+**
+** Function         btm_clr_inq_result_flt
+**
+** Description      This function looks through the bdaddr database for a match
+**                  based on Bluetooth Device Address
+**
+** Returns          TRUE if found, else FALSE (new entry)
+**
+*******************************************************************************/
+static void btm_clr_inq_result_flt (void)
+{
+    tBTM_INQUIRY_VAR_ST *p_inq = &btm_cb.btm_inq_vars;
+
+    osi_free_and_reset((void **)&p_inq->p_bd_db);
+    p_inq->num_bd_entries = 0;
+    p_inq->max_bd_entries = 0;
+}
+
+/*******************************************************************************
+**
+** Function         btm_inq_find_bdaddr
+**
+** Description      This function looks through the bdaddr database for a match
+**                  based on Bluetooth Device Address
+**
+** Returns          TRUE if found, else FALSE (new entry)
+**
+*******************************************************************************/
+BOOLEAN btm_inq_find_bdaddr (BD_ADDR p_bda)
+{
+    tBTM_INQUIRY_VAR_ST *p_inq = &btm_cb.btm_inq_vars;
+    tINQ_BDADDR         *p_db = &p_inq->p_bd_db[0];
+    UINT16       xx;
+
+    /* Don't bother searching, database doesn't exist or periodic mode */
+    if ((p_inq->inq_active & BTM_PERIODIC_INQUIRY_ACTIVE) || !p_db)
+        return (FALSE);
+
+    for (xx = 0; xx < p_inq->num_bd_entries; xx++, p_db++)
+    {
+        if (!memcmp(p_db->bd_addr, p_bda, BD_ADDR_LEN)
+            && p_db->inq_count == p_inq->inq_counter)
+            return (TRUE);
+    }
+
+    if (xx < p_inq->max_bd_entries)
+    {
+        p_db->inq_count = p_inq->inq_counter;
+        memcpy(p_db->bd_addr, p_bda, BD_ADDR_LEN);
+        p_inq->num_bd_entries++;
+    }
+
+    /* If here, New Entry */
+    return (FALSE);
+}
+
+/*******************************************************************************
+**
+** Function         btm_inq_db_find
+**
+** Description      This function looks through the inquiry database for a match
+**                  based on Bluetooth Device Address
+**
+** Returns          pointer to entry, or NULL if not found
+**
+*******************************************************************************/
+tINQ_DB_ENT *btm_inq_db_find (BD_ADDR p_bda)
+{
+    UINT16       xx;
+    tINQ_DB_ENT  *p_ent = btm_cb.btm_inq_vars.inq_db;
+
+    for (xx = 0; xx < BTM_INQ_DB_SIZE; xx++, p_ent++)
+    {
+        if ((p_ent->in_use) && (!memcmp (p_ent->inq_info.results.remote_bd_addr, p_bda, BD_ADDR_LEN)))
+            return (p_ent);
+    }
+
+    /* If here, not found */
+    return (NULL);
+}
+
+
+/*******************************************************************************
+**
+** Function         btm_inq_db_new
+**
+** Description      This function looks through the inquiry database for an unused
+**                  entry. If no entry is free, it allocates the oldest entry.
+**
+** Returns          pointer to entry
+**
+*******************************************************************************/
+tINQ_DB_ENT *btm_inq_db_new (BD_ADDR p_bda)
+{
+    UINT16       xx;
+    tINQ_DB_ENT  *p_ent = btm_cb.btm_inq_vars.inq_db;
+    tINQ_DB_ENT  *p_old = btm_cb.btm_inq_vars.inq_db;
+    UINT32       ot = 0xFFFFFFFF;
+
+    for (xx = 0; xx < BTM_INQ_DB_SIZE; xx++, p_ent++)
+    {
+        if (!p_ent->in_use)
+        {
+            memset (p_ent, 0, sizeof (tINQ_DB_ENT));
+            memcpy (p_ent->inq_info.results.remote_bd_addr, p_bda, BD_ADDR_LEN);
+            p_ent->in_use = TRUE;
+
+            return (p_ent);
+        }
+
+        if (p_ent->time_of_resp < ot)
+        {
+            p_old = p_ent;
+            ot    = p_ent->time_of_resp;
+        }
+    }
+
+    /* If here, no free entry found. Return the oldest. */
+
+    memset (p_old, 0, sizeof (tINQ_DB_ENT));
+    memcpy (p_old->inq_info.results.remote_bd_addr, p_bda, BD_ADDR_LEN);
+    p_old->in_use = TRUE;
+
+    return (p_old);
+}
+
+
+/*******************************************************************************
+**
+** Function         btm_set_inq_event_filter
+**
+** Description      This function is called to set the inquiry event filter.
+**                  It is called by either internally, or by the external API function
+**                  (BTM_SetInqEventFilter).  It is used internally as part of the
+**                  inquiry processing.
+**
+** Input Params:
+**                  filter_cond_type - this is the type of inquiry filter to apply:
+**                          BTM_FILTER_COND_DEVICE_CLASS,
+**                          BTM_FILTER_COND_BD_ADDR, or
+**                          BTM_CLR_INQUIRY_FILTER
+**
+**                  p_filt_cond - this is either a BD_ADDR or DEV_CLASS depending on the
+**                          filter_cond_type  (See section 4.7.3 of Core Spec 1.0b).
+**
+** Returns          BTM_CMD_STARTED if successfully initiated
+**                  BTM_NO_RESOURCES if couldn't get a memory pool buffer
+**                  BTM_ILLEGAL_VALUE if a bad parameter was detected
+**
+*******************************************************************************/
+static tBTM_STATUS btm_set_inq_event_filter (UINT8 filter_cond_type,
+                                             tBTM_INQ_FILT_COND *p_filt_cond)
+{
+    UINT8    condition_length = DEV_CLASS_LEN * 2;
+    UINT8    condition_buf[DEV_CLASS_LEN * 2];
+    UINT8   *p_cond = condition_buf;                    /* points to the condition to pass to HCI */
+
+#if (BTM_INQ_DEBUG == TRUE)
+    BTM_TRACE_DEBUG ("btm_set_inq_event_filter: filter type %d [Clear-0, COD-1, BDADDR-2]",
+        filter_cond_type);
+    BTM_TRACE_DEBUG ("                       condition [%02x%02x%02x %02x%02x%02x]",
+               p_filt_cond->bdaddr_cond[0], p_filt_cond->bdaddr_cond[1], p_filt_cond->bdaddr_cond[2],
+               p_filt_cond->bdaddr_cond[3], p_filt_cond->bdaddr_cond[4], p_filt_cond->bdaddr_cond[5]);
+#endif
+
+    /* Load the correct filter condition to pass to the lower layer */
+    switch (filter_cond_type)
+    {
+    case BTM_FILTER_COND_DEVICE_CLASS:
+        /* copy the device class and device class fields into contiguous memory to send to HCI */
+        memcpy (condition_buf, p_filt_cond->cod_cond.dev_class, DEV_CLASS_LEN);
+        memcpy (&condition_buf[DEV_CLASS_LEN],
+                p_filt_cond->cod_cond.dev_class_mask, DEV_CLASS_LEN);
+
+        /* condition length should already be set as the default */
+        break;
+
+    case BTM_FILTER_COND_BD_ADDR:
+        p_cond = p_filt_cond->bdaddr_cond;
+
+        /* condition length should already be set as the default */
+        break;
+
+    case BTM_CLR_INQUIRY_FILTER:
+        condition_length = 0;
+        break;
+
+    default:
+        return (BTM_ILLEGAL_VALUE);     /* Bad parameter was passed in */
+    }
+
+    btm_cb.btm_inq_vars.inqfilt_active = TRUE;
+
+    /* Filter the inquiry results for the specified condition type and value */
+    if (btsnd_hcic_set_event_filter(HCI_FILTER_INQUIRY_RESULT, filter_cond_type,
+                                    p_cond, condition_length))
+
+        return (BTM_CMD_STARTED);
+    else
+        return (BTM_NO_RESOURCES);
+}
+
+
+/*******************************************************************************
+**
+** Function         btm_event_filter_complete
+**
+** Description      This function is called when a set event filter has completed.
+**                  Note: This routine currently only handles inquiry filters.
+**                      Connection filters are ignored for now.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_event_filter_complete (UINT8 *p)
+{
+    UINT8            hci_status;
+    tBTM_STATUS      status;
+    tBTM_INQUIRY_VAR_ST *p_inq = &btm_cb.btm_inq_vars;
+    tBTM_CMPL_CB   *p_cb = p_inq->p_inqfilter_cmpl_cb;
+
+#if (BTM_INQ_DEBUG == TRUE)
+    BTM_TRACE_DEBUG ("btm_event_filter_complete: inq_active:0x%x state:%d inqfilt_active:%d",
+        btm_cb.btm_inq_vars.inq_active, btm_cb.btm_inq_vars.state, btm_cb.btm_inq_vars.inqfilt_active);
+#endif
+    /* If the filter complete event is from an old or cancelled request, ignore it */
+    if(p_inq->pending_filt_complete_event)
+    {
+        p_inq->pending_filt_complete_event--;
+        return;
+    }
+
+    /* Only process the inquiry filter; Ignore the connection filter until it
+       is used by the upper layers */
+    if (p_inq->inqfilt_active == TRUE )
+    {
+        /* Extract the returned status from the buffer */
+        STREAM_TO_UINT8 (hci_status, p);
+        if (hci_status != HCI_SUCCESS)
+        {
+            /* If standalone operation, return the error status; if embedded in the inquiry, continue the inquiry */
+            BTM_TRACE_WARNING ("BTM Warning: Set Event Filter Failed (HCI returned 0x%x)", hci_status);
+            status = BTM_ERR_PROCESSING;
+        }
+        else
+            status = BTM_SUCCESS;
+
+        /* If the set filter was initiated externally (via BTM_SetInqEventFilter), call the
+           callback function to notify the initiator that it has completed */
+        if (p_inq->state == BTM_INQ_INACTIVE_STATE)
+        {
+            p_inq->inqfilt_active = FALSE;
+            if (p_cb)
+                (*p_cb) (&status);
+        }
+        else    /* An inquiry is active (the set filter command was internally generated),
+                   process the next state of the process (Set a new filter or start the inquiry). */
+        {
+            if(status != BTM_SUCCESS)
+            {
+                /* Process the inquiry complete (Error Status) */
+                btm_process_inq_complete (BTM_ERR_PROCESSING, (UINT8)(p_inq->inqparms.mode & BTM_BR_INQUIRY_MASK));
+
+                /* btm_process_inq_complete() does not restore the following settings on periodic inquiry */
+                p_inq->inqfilt_active = FALSE;
+                p_inq->inq_active = BTM_INQUIRY_INACTIVE;
+                p_inq->state = BTM_INQ_INACTIVE_STATE;
+
+                return;
+            }
+
+            /* Check to see if a new filter needs to be set up */
+            if (p_inq->state == BTM_INQ_CLR_FILT_STATE)
+            {
+                if ((status = btm_set_inq_event_filter (p_inq->inqparms.filter_cond_type, &p_inq->inqparms.filter_cond)) == BTM_CMD_STARTED)
+                {
+                    p_inq->state = BTM_INQ_SET_FILT_STATE;
+                }
+                else    /* Error setting the filter: Call the initiator's callback function to indicate a failure */
+                {
+                    p_inq->inqfilt_active = FALSE;
+
+                    /* Process the inquiry complete (Error Status) */
+                    btm_process_inq_complete (BTM_ERR_PROCESSING, (UINT8)(p_inq->inqparms.mode & BTM_BR_INQUIRY_MASK));
+                }
+            }
+            else    /* Initiate the Inquiry or Periodic Inquiry */
+            {
+                p_inq->state = BTM_INQ_ACTIVE_STATE;
+                p_inq->inqfilt_active = FALSE;
+                btm_initiate_inquiry (p_inq);
+            }
+        }
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         btm_initiate_inquiry
+**
+** Description      This function is called to start an inquiry or periodic inquiry
+**                  upon completion of the setting and/or clearing of the inquiry filter.
+**
+** Inputs:          p_inq (btm_cb.btm_inq_vars) - pointer to saved inquiry information
+**                      mode - GENERAL or LIMITED inquiry
+**                      duration - length in 1.28 sec intervals (If '0', the inquiry is CANCELLED)
+**                      max_resps - maximum amount of devices to search for before ending the inquiry
+**                      filter_cond_type - BTM_CLR_INQUIRY_FILTER, BTM_FILTER_COND_DEVICE_CLASS, or
+**                                         BTM_FILTER_COND_BD_ADDR
+**                      filter_cond - value for the filter (based on filter_cond_type)
+**
+** Returns          If an error occurs the initiator's callback is called with the error status.
+**
+*******************************************************************************/
+static void btm_initiate_inquiry (tBTM_INQUIRY_VAR_ST *p_inq)
+{
+    const LAP       *lap;
+    tBTM_INQ_PARMS  *p_inqparms = &p_inq->inqparms;
+
+#if (BTM_INQ_DEBUG == TRUE)
+    BTM_TRACE_DEBUG ("btm_initiate_inquiry: inq_active:0x%x state:%d inqfilt_active:%d",
+        btm_cb.btm_inq_vars.inq_active, btm_cb.btm_inq_vars.state, btm_cb.btm_inq_vars.inqfilt_active);
+#endif
+    btm_acl_update_busy_level (BTM_BLI_INQ_EVT);
+
+    if (p_inq->inq_active & BTM_SSP_INQUIRY_ACTIVE)
+    {
+        btm_process_inq_complete (BTM_NO_RESOURCES, (UINT8)(p_inqparms->mode & BTM_BR_INQUIRY_MASK));
+        return;
+    }
+
+    /* Make sure the number of responses doesn't overflow the database configuration */
+    p_inqparms->max_resps = (UINT8)((p_inqparms->max_resps <= BTM_INQ_DB_SIZE) ? p_inqparms->max_resps : BTM_INQ_DB_SIZE);
+
+    lap = (p_inq->inq_active & BTM_LIMITED_INQUIRY_ACTIVE) ? &limited_inq_lap : &general_inq_lap;
+
+    if (p_inq->inq_active & BTM_PERIODIC_INQUIRY_ACTIVE)
+    {
+        if (!btsnd_hcic_per_inq_mode (p_inq->per_max_delay,
+                                      p_inq->per_min_delay,
+                                      *lap, p_inqparms->duration,
+                                      p_inqparms->max_resps))
+            btm_process_inq_complete (BTM_NO_RESOURCES, (UINT8)(p_inqparms->mode & BTM_BR_INQUIRY_MASK));
+    }
+    else
+    {
+        btm_clr_inq_result_flt();
+
+        /* Allocate memory to hold bd_addrs responding */
+        p_inq->p_bd_db = (tINQ_BDADDR *)osi_calloc(BT_DEFAULT_BUFFER_SIZE);
+        p_inq->max_bd_entries = (UINT16)(BT_DEFAULT_BUFFER_SIZE / sizeof(tINQ_BDADDR));
+
+        if (!btsnd_hcic_inquiry(*lap, p_inqparms->duration, 0))
+            btm_process_inq_complete (BTM_NO_RESOURCES, (UINT8)(p_inqparms->mode & BTM_BR_INQUIRY_MASK));
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btm_process_inq_results
+**
+** Description      This function is called when inquiry results are received from
+**                  the device. It updates the inquiry database. If the inquiry
+**                  database is full, the oldest entry is discarded.
+**
+** Parameters       inq_res_mode - BTM_INQ_RESULT_STANDARD
+**                                 BTM_INQ_RESULT_WITH_RSSI
+**                                 BTM_INQ_RESULT_EXTENDED
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_process_inq_results (UINT8 *p, UINT8 inq_res_mode)
+{
+    UINT8            num_resp, xx;
+    BD_ADDR          bda;
+    tINQ_DB_ENT     *p_i;
+    tBTM_INQ_RESULTS *p_cur=NULL;
+    BOOLEAN          is_new = TRUE;
+    BOOLEAN          update = FALSE;
+    INT8             i_rssi;
+    tBTM_INQUIRY_VAR_ST *p_inq = &btm_cb.btm_inq_vars;
+    tBTM_INQ_RESULTS_CB *p_inq_results_cb = p_inq->p_inq_results_cb;
+    UINT8            page_scan_rep_mode = 0;
+    UINT8            page_scan_per_mode = 0;
+    UINT8            page_scan_mode = 0;
+    UINT8            rssi = 0;
+    DEV_CLASS        dc;
+    UINT16           clock_offset;
+    UINT8            *p_eir_data = NULL;
+
+#if (BTM_INQ_DEBUG == TRUE)
+    BTM_TRACE_DEBUG ("btm_process_inq_results inq_active:0x%x state:%d inqfilt_active:%d",
+        btm_cb.btm_inq_vars.inq_active, btm_cb.btm_inq_vars.state, btm_cb.btm_inq_vars.inqfilt_active);
+#endif
+    /* Only process the results if the BR inquiry is still active */
+    if (!(p_inq->inq_active & BTM_BR_INQ_ACTIVE_MASK))
+        return;
+
+    STREAM_TO_UINT8 (num_resp, p);
+
+    if (inq_res_mode == BTM_INQ_RESULT_EXTENDED && (num_resp > 1)) {
+        BTM_TRACE_ERROR ("btm_process_inq_results() extended results (%d) > 1",
+                         num_resp);
+        return;
+    }
+
+    for (xx = 0; xx < num_resp; xx++)
+    {
+        update = FALSE;
+        /* Extract inquiry results */
+        STREAM_TO_BDADDR   (bda, p);
+        STREAM_TO_UINT8    (page_scan_rep_mode, p);
+        STREAM_TO_UINT8    (page_scan_per_mode, p);
+
+        if (inq_res_mode == BTM_INQ_RESULT_STANDARD)
+        {
+            STREAM_TO_UINT8(page_scan_mode, p);
+        }
+
+        STREAM_TO_DEVCLASS (dc, p);
+        STREAM_TO_UINT16   (clock_offset, p);
+        if (inq_res_mode != BTM_INQ_RESULT_STANDARD)
+        {
+            STREAM_TO_UINT8(rssi, p);
+        }
+
+        p_i = btm_inq_db_find (bda);
+
+        /* Only process the num_resp is smaller than max_resps.
+           If results are queued to BTU task while canceling inquiry,
+           or when more than one result is in this response, > max_resp
+           responses could be processed which can confuse some apps
+        */
+        if (p_inq->inqparms.max_resps &&
+            p_inq->inq_cmpl_info.num_resp >= p_inq->inqparms.max_resps
+#if BLE_INCLUDED == TRUE
+            /* new device response */
+            && ( p_i == NULL ||
+                /* exisiting device with BR/EDR info */
+                (p_i && (p_i->inq_info.results.device_type & BT_DEVICE_TYPE_BREDR) != 0)
+               )
+#endif
+
+            )
+        {
+/*            BTM_TRACE_WARNING("INQ RES: Extra Response Received...ignoring"); */
+            return;
+        }
+
+        /* Check if this address has already been processed for this inquiry */
+        if (btm_inq_find_bdaddr(bda))
+        {
+/*             BTM_TRACE_DEBUG("BDA seen before [%02x%02x %02x%02x %02x%02x]",
+                             bda[0], bda[1], bda[2], bda[3], bda[4], bda[5]);*/
+             /* By default suppose no update needed */
+            i_rssi = (INT8)rssi;
+
+            /* If this new RSSI is higher than the last one */
+            if(p_inq->inqparms.report_dup && (rssi != 0) &&
+               p_i && (i_rssi > p_i->inq_info.results.rssi || p_i->inq_info.results.rssi == 0
+#if BLE_INCLUDED == TRUE
+               /* BR/EDR inquiry information update */
+                       || (p_i->inq_info.results.device_type & BT_DEVICE_TYPE_BREDR) != 0
+#endif
+                       ))
+            {
+                p_cur = &p_i->inq_info.results;
+                BTM_TRACE_DEBUG("update RSSI new:%d, old:%d", i_rssi, p_cur->rssi);
+                p_cur->rssi = i_rssi;
+                update = TRUE;
+            }
+            /* If we received a second Extended Inq Event for an already */
+            /* discovered device, this is because for the first one EIR was not received */
+            else if ((inq_res_mode == BTM_INQ_RESULT_EXTENDED) && (p_i))
+            {
+                p_cur = &p_i->inq_info.results;
+                update = TRUE;
+            }
+            /* If no update needed continue with next response (if any) */
+            else
+                continue;
+        }
+
+        /* If existing entry, use that, else get a new one (possibly reusing the oldest) */
+        if (p_i == NULL)
+        {
+            p_i = btm_inq_db_new (bda);
+            is_new = TRUE;
+        }
+
+        /* If an entry for the device already exists, overwrite it ONLY if it is from
+           a previous inquiry. (Ignore it if it is a duplicate response from the same
+           inquiry.
+        */
+        else if (p_i->inq_count == p_inq->inq_counter
+#if (BLE_INCLUDED == TRUE )
+            && (p_i->inq_info.results.device_type == BT_DEVICE_TYPE_BREDR)
+#endif
+            )
+            is_new = FALSE;
+
+        /* keep updating RSSI to have latest value */
+        if( inq_res_mode != BTM_INQ_RESULT_STANDARD )
+            p_i->inq_info.results.rssi = (INT8)rssi;
+        else
+            p_i->inq_info.results.rssi = BTM_INQ_RES_IGNORE_RSSI;
+
+        if (is_new == TRUE)
+        {
+            /* Save the info */
+            p_cur = &p_i->inq_info.results;
+            p_cur->page_scan_rep_mode = page_scan_rep_mode;
+            p_cur->page_scan_per_mode = page_scan_per_mode;
+            p_cur->page_scan_mode     = page_scan_mode;
+            p_cur->dev_class[0]       = dc[0];
+            p_cur->dev_class[1]       = dc[1];
+            p_cur->dev_class[2]       = dc[2];
+            p_cur->clock_offset       = clock_offset  | BTM_CLOCK_OFFSET_VALID;
+
+            p_i->time_of_resp = time_get_os_boottime_ms();
+
+            if (p_i->inq_count != p_inq->inq_counter)
+                p_inq->inq_cmpl_info.num_resp++;       /* A new response was found */
+
+#if (defined BLE_INCLUDED && BLE_INCLUDED == TRUE)
+            p_cur->inq_result_type    = BTM_INQ_RESULT_BR;
+            if (p_i->inq_count != p_inq->inq_counter)
+            {
+                p_cur->device_type  = BT_DEVICE_TYPE_BREDR;
+                p_i->scan_rsp       = FALSE;
+            }
+            else
+                p_cur->device_type    |= BT_DEVICE_TYPE_BREDR;
+#endif
+                p_i->inq_count = p_inq->inq_counter;   /* Mark entry for current inquiry */
+
+            /* If the number of responses found and not unlimited, issue a cancel inquiry */
+            if (!(p_inq->inq_active & BTM_PERIODIC_INQUIRY_ACTIVE) &&
+                p_inq->inqparms.max_resps &&
+                p_inq->inq_cmpl_info.num_resp == p_inq->inqparms.max_resps
+#if BLE_INCLUDED == TRUE
+                /* BLE scanning is active and received adv */
+                && ((((p_inq->inqparms.mode & BTM_BLE_INQUIRY_MASK) != 0) &&
+                     p_cur->device_type == BT_DEVICE_TYPE_DUMO && p_i->scan_rsp) ||
+                    (p_inq->inqparms.mode & BTM_BLE_INQUIRY_MASK) == 0)
+#endif
+                )
+            {
+/*                BTM_TRACE_DEBUG("BTMINQ: Found devices, cancelling inquiry..."); */
+                btsnd_hcic_inq_cancel();
+
+#if BLE_INCLUDED == TRUE
+                if ((p_inq->inqparms.mode & BTM_BLE_INQUIRY_MASK) != 0)
+                    btm_ble_stop_inquiry();
+#endif
+                btm_acl_update_busy_level (BTM_BLI_INQ_DONE_EVT);
+            }
+            /* Initialize flag to FALSE. This flag is set/used by application */
+            p_i->inq_info.appl_knows_rem_name = FALSE;
+        }
+
+        if (is_new || update)
+        {
+            if( inq_res_mode == BTM_INQ_RESULT_EXTENDED )
+            {
+                memset( p_cur->eir_uuid, 0,
+                        BTM_EIR_SERVICE_ARRAY_SIZE * (BTM_EIR_ARRAY_BITS/8));
+                /* set bit map of UUID list from received EIR */
+                btm_set_eir_uuid( p, p_cur );
+                p_eir_data = p;
+            }
+            else
+                p_eir_data = NULL;
+
+            /* If a callback is registered, call it with the results */
+            if (p_inq_results_cb)
+                (p_inq_results_cb)((tBTM_INQ_RESULTS *) p_cur, p_eir_data);
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btm_sort_inq_result
+**
+** Description      This function is called when inquiry complete is received
+**                  from the device to sort inquiry results based on rssi.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_sort_inq_result(void)
+{
+    UINT8 xx, yy, num_resp;
+    tINQ_DB_ENT *p_ent  = btm_cb.btm_inq_vars.inq_db;
+    tINQ_DB_ENT *p_next = btm_cb.btm_inq_vars.inq_db+1;
+    int size;
+    tINQ_DB_ENT *p_tmp = (tINQ_DB_ENT *)osi_malloc(sizeof(tINQ_DB_ENT));
+
+    num_resp = (btm_cb.btm_inq_vars.inq_cmpl_info.num_resp<BTM_INQ_DB_SIZE)?
+                btm_cb.btm_inq_vars.inq_cmpl_info.num_resp: BTM_INQ_DB_SIZE;
+
+    size = sizeof(tINQ_DB_ENT);
+    for (xx = 0; xx < num_resp-1; xx++, p_ent++) {
+        for (yy = xx+1, p_next = p_ent+1; yy < num_resp; yy++, p_next++) {
+            if (p_ent->inq_info.results.rssi < p_next->inq_info.results.rssi) {
+                memcpy(p_tmp, p_next, size);
+                memcpy(p_next, p_ent,  size);
+                memcpy(p_ent, p_tmp,  size);
+            }
+        }
+    }
+
+    osi_free(p_tmp);
+}
+
+/*******************************************************************************
+**
+** Function         btm_process_inq_complete
+**
+** Description      This function is called when inquiry complete is received
+**                  from the device.  Call the callback if not in periodic inquiry
+**                  mode AND it is not NULL (The caller wants the event).
+**
+**                  The callback pass back the status and the number of responses
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_process_inq_complete (UINT8 status, UINT8 mode)
+{
+    tBTM_CMPL_CB        *p_inq_cb = btm_cb.btm_inq_vars.p_inq_cmpl_cb;
+    tBTM_INQUIRY_VAR_ST *p_inq = &btm_cb.btm_inq_vars;
+
+#if (defined(BTA_HOST_INTERLEAVE_SEARCH) && BTA_HOST_INTERLEAVE_SEARCH == TRUE)
+    /* inquiry inactive case happens when inquiry is cancelled.
+       Make mode 0 for no further inquiries from the current inquiry process
+    */
+    if(status!=HCI_SUCCESS || p_inq->next_state==BTM_FINISH || !p_inq->inq_active)
+    {
+        /* re-initialize for next inquiry request */
+        p_inq->next_state=BTM_BR_ONE;
+        /* make the mode 0 here */
+        p_inq->inqparms.mode &= ~(p_inq->inqparms.mode);
+
+    }
+#endif
+
+#if (!defined(BTA_HOST_INTERLEAVE_SEARCH) || BTA_HOST_INTERLEAVE_SEARCH == FALSE)
+    p_inq->inqparms.mode &= ~(mode);
+#endif
+
+    if(p_inq->scan_type == INQ_LE_OBSERVE && !p_inq->inq_active)
+    {
+        /*end of LE observe*/
+        p_inq->p_inq_ble_results_cb = (tBTM_INQ_RESULTS_CB *) NULL;
+        p_inq->p_inq_ble_cmpl_cb = (tBTM_CMPL_CB *) NULL;
+        p_inq->scan_type=INQ_NONE;
+    }
+
+
+#if (BTM_INQ_DEBUG == TRUE)
+    BTM_TRACE_DEBUG ("btm_process_inq_complete inq_active:0x%x state:%d inqfilt_active:%d",
+        btm_cb.btm_inq_vars.inq_active, btm_cb.btm_inq_vars.state, btm_cb.btm_inq_vars.inqfilt_active);
+#endif
+    btm_acl_update_busy_level (BTM_BLI_INQ_DONE_EVT);
+    /* Ignore any stray or late complete messages if the inquiry is not active */
+    if (p_inq->inq_active)
+    {
+        p_inq->inq_cmpl_info.status = (tBTM_STATUS)((status == HCI_SUCCESS) ? BTM_SUCCESS : BTM_ERR_PROCESSING);
+
+        /* Notify caller that the inquiry has completed; (periodic inquiries do not send completion events */
+        if (!(p_inq->inq_active & BTM_PERIODIC_INQUIRY_ACTIVE) && p_inq->inqparms.mode == 0)
+        {
+#if BLE_INCLUDED == TRUE
+            btm_clear_all_pending_le_entry();
+#endif
+            p_inq->state = BTM_INQ_INACTIVE_STATE;
+
+            /* Increment so the start of a next inquiry has a new count */
+            p_inq->inq_counter++;
+
+            btm_clr_inq_result_flt();
+
+            if((p_inq->inq_cmpl_info.status == BTM_SUCCESS) &&
+                controller_get_interface()->supports_rssi_with_inquiry_results())
+            {
+                btm_sort_inq_result();
+            }
+
+            /* Clear the results callback if set */
+            p_inq->p_inq_results_cb = (tBTM_INQ_RESULTS_CB *) NULL;
+            p_inq->inq_active = BTM_INQUIRY_INACTIVE;
+            p_inq->p_inq_cmpl_cb = (tBTM_CMPL_CB *) NULL;
+
+            /* If we have a callback registered for inquiry complete, call it */
+            BTM_TRACE_DEBUG ("BTM Inq Compl Callback: status 0x%02x, num results %d",
+                        p_inq->inq_cmpl_info.status, p_inq->inq_cmpl_info.num_resp);
+
+            if (p_inq_cb)
+                (p_inq_cb)((tBTM_INQUIRY_CMPL *) &p_inq->inq_cmpl_info);
+        }
+#if (defined(BTA_HOST_INTERLEAVE_SEARCH) && BTA_HOST_INTERLEAVE_SEARCH == TRUE)
+        if(p_inq->inqparms.mode != 0 && !(p_inq->inq_active & BTM_PERIODIC_INQUIRY_ACTIVE))
+        {
+            /* make inquiry inactive for next iteration */
+            p_inq->inq_active = BTM_INQUIRY_INACTIVE;
+            /* call the inquiry again */
+            BTM_StartInquiry(&p_inq->inqparms,p_inq->p_inq_results_cb,p_inq->p_inq_cmpl_cb);
+        }
+#endif
+    }
+    if(p_inq->inqparms.mode == 0 && p_inq->scan_type == INQ_GENERAL)//this inquiry is complete
+    {
+        p_inq->scan_type = INQ_NONE;
+#if (defined BLE_INCLUDED && BLE_INCLUDED == TRUE)
+        /* check if the LE observe is pending */
+        if(p_inq->p_inq_ble_results_cb != NULL)
+        {
+            BTM_TRACE_DEBUG("BTM Inq Compl: resuming a pending LE scan");
+            BTM_BleObserve(1,0, p_inq->p_inq_ble_results_cb, p_inq->p_inq_ble_cmpl_cb);
+        }
+#endif
+    }
+#if (BTM_INQ_DEBUG == TRUE)
+    BTM_TRACE_DEBUG ("inq_active:0x%x state:%d inqfilt_active:%d",
+        btm_cb.btm_inq_vars.inq_active, btm_cb.btm_inq_vars.state, btm_cb.btm_inq_vars.inqfilt_active);
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         btm_process_cancel_complete
+**
+** Description      This function is called when inquiry cancel complete is received
+**                  from the device.This function will also call the btm_process_inq_complete
+**                  This function is needed to differentiate a cancel_cmpl_evt from the
+**                  inq_cmpl_evt
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_process_cancel_complete(UINT8 status, UINT8 mode)
+{
+     btm_acl_update_busy_level (BTM_BLI_INQ_CANCEL_EVT);
+     btm_process_inq_complete(status, mode);
+}
+/*******************************************************************************
+**
+** Function         btm_initiate_rem_name
+**
+** Description      This function looks initiates a remote name request.  It is called
+**                  either by GAP or by the API call BTM_ReadRemoteDeviceName.
+**
+** Input Params:    p_cur         - pointer to an inquiry result structure (NULL if nonexistent)
+**                  p_cb            - callback function called when BTM_CMD_STARTED
+**                                    is returned.
+**                                    A pointer to tBTM_REMOTE_DEV_NAME is passed to the
+**                                    callback.
+**
+** Returns
+**                  BTM_CMD_STARTED is returned if the request was sent to HCI.
+**                  BTM_BUSY if already in progress
+**                  BTM_NO_RESOURCES if could not allocate resources to start the command
+**                  BTM_WRONG_MODE if the device is not up.
+**
+*******************************************************************************/
+tBTM_STATUS  btm_initiate_rem_name (BD_ADDR remote_bda, tBTM_INQ_INFO *p_cur,
+                                    UINT8 origin, period_ms_t timeout_ms,
+                                    tBTM_CMPL_CB *p_cb)
+{
+    tBTM_INQUIRY_VAR_ST *p_inq = &btm_cb.btm_inq_vars;
+    BOOLEAN              cmd_ok;
+
+
+    /*** Make sure the device is ready ***/
+    if (!BTM_IsDeviceUp())
+        return (BTM_WRONG_MODE);
+
+
+    if (origin == BTM_RMT_NAME_SEC)
+    {
+        cmd_ok = btsnd_hcic_rmt_name_req (remote_bda, HCI_PAGE_SCAN_REP_MODE_R1,
+                                         HCI_MANDATARY_PAGE_SCAN_MODE, 0);
+        if (cmd_ok)
+            return BTM_CMD_STARTED;
+        else
+            return BTM_NO_RESOURCES;
+    }
+    /* Make sure there are no two remote name requests from external API in progress */
+    else if (origin == BTM_RMT_NAME_EXT)
+    {
+        if (p_inq->remname_active)
+        {
+            return (BTM_BUSY);
+        }
+        else
+        {
+            /* If there is no remote name request running,call the callback function and start timer */
+            p_inq->p_remname_cmpl_cb = p_cb;
+            memcpy(p_inq->remname_bda, remote_bda, BD_ADDR_LEN);
+
+            alarm_set_on_queue(p_inq->remote_name_timer, timeout_ms,
+                               btm_inq_remote_name_timer_timeout, NULL,
+                               btu_general_alarm_queue);
+
+            /* If the database entry exists for the device, use its clock offset */
+            if (p_cur)
+            {
+                cmd_ok = btsnd_hcic_rmt_name_req (remote_bda,
+                                         p_cur->results.page_scan_rep_mode,
+                                         p_cur->results.page_scan_mode,
+                                         (UINT16)(p_cur->results.clock_offset |
+                                                  BTM_CLOCK_OFFSET_VALID));
+            }
+            else /* Otherwise use defaults and mark the clock offset as invalid */
+            {
+                cmd_ok = btsnd_hcic_rmt_name_req (remote_bda, HCI_PAGE_SCAN_REP_MODE_R1,
+                                         HCI_MANDATARY_PAGE_SCAN_MODE, 0);
+            }
+            if (cmd_ok)
+            {
+                p_inq->remname_active = TRUE;
+                return BTM_CMD_STARTED;
+            }
+            else
+                return BTM_NO_RESOURCES;
+        }
+    }
+    else
+    {
+        return BTM_ILLEGAL_VALUE;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btm_process_remote_name
+**
+** Description      This function is called when a remote name is received from
+**                  the device. If remote names are cached, it updates the inquiry
+**                  database.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_process_remote_name (BD_ADDR bda, BD_NAME bdn, UINT16 evt_len, UINT8 hci_status)
+{
+    tBTM_REMOTE_DEV_NAME    rem_name;
+    tBTM_INQUIRY_VAR_ST    *p_inq = &btm_cb.btm_inq_vars;
+    tBTM_CMPL_CB           *p_cb = p_inq->p_remname_cmpl_cb;
+    UINT8                  *p_n1;
+
+    UINT16                 temp_evt_len;
+
+    if (bda != NULL)
+    {
+        BTM_TRACE_EVENT("BDA %02x:%02x:%02x:%02x:%02x:%02x",bda[0], bda[1],
+                 bda[2], bda[3],
+                 bda[4], bda[5]);
+    }
+
+    BTM_TRACE_EVENT("Inquire BDA %02x:%02x:%02x:%02x:%02x:%02x",p_inq->remname_bda[0], p_inq->remname_bda[1],
+             p_inq->remname_bda[2], p_inq->remname_bda[3],
+             p_inq->remname_bda[4], p_inq->remname_bda[5]);
+
+
+
+    /* If the inquire BDA and remote DBA are the same, then stop the timer and set the active to false */
+    if ((p_inq->remname_active ==TRUE)&&
+        (((bda != NULL) &&
+        (memcmp(bda, p_inq->remname_bda,BD_ADDR_LEN)==0)) || bda == NULL))
+
+    {
+#if BLE_INCLUDED == TRUE
+        if (BTM_UseLeLink(p_inq->remname_bda))
+        {
+            if (hci_status == HCI_ERR_UNSPECIFIED)
+                btm_ble_cancel_remote_name(p_inq->remname_bda);
+        }
+#endif
+        alarm_cancel(p_inq->remote_name_timer);
+        p_inq->remname_active = FALSE;
+         /* Clean up and return the status if the command was not successful */
+         /* Note: If part of the inquiry, the name is not stored, and the    */
+         /*       inquiry complete callback is called.                       */
+
+        if (hci_status == HCI_SUCCESS)
+        {
+            /* Copy the name from the data stream into the return structure */
+            /* Note that even if it is not being returned, it is used as a  */
+            /*      temporary buffer.                                       */
+            p_n1 = (UINT8 *)rem_name.remote_bd_name;
+            rem_name.length = (evt_len < BD_NAME_LEN) ? evt_len : BD_NAME_LEN;
+            rem_name.remote_bd_name[rem_name.length] = 0;
+            rem_name.status = BTM_SUCCESS;
+            temp_evt_len = rem_name.length;
+
+            while (temp_evt_len > 0)
+            {
+                *p_n1++ = *bdn++;
+                temp_evt_len--;
+            }
+            rem_name.remote_bd_name[rem_name.length] = 0;
+        }
+
+
+        /* If processing a stand alone remote name then report the error in the callback */
+        else
+        {
+            rem_name.status = BTM_BAD_VALUE_RET;
+            rem_name.length = 0;
+            rem_name.remote_bd_name[0] = 0;
+        }
+        /* Reset the remote BAD to zero and call callback if possible */
+        memset(p_inq->remname_bda, 0, BD_ADDR_LEN);
+
+        p_inq->p_remname_cmpl_cb = NULL;
+        if (p_cb)
+            (p_cb)((tBTM_REMOTE_DEV_NAME *)&rem_name);
+    }
+}
+
+void btm_inq_remote_name_timer_timeout(UNUSED_ATTR void *data)
+{
+    btm_inq_rmt_name_failed();
+}
+
+/*******************************************************************************
+**
+** Function         btm_inq_rmt_name_failed
+**
+** Description      This function is if timeout expires while getting remote
+**                  name.  This is done for devices that incorrectly do not
+**                  report operation failure
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_inq_rmt_name_failed (void)
+{
+    BTM_TRACE_ERROR ("btm_inq_rmt_name_failed()  remname_active=%d", btm_cb.btm_inq_vars.remname_active);
+
+    if (btm_cb.btm_inq_vars.remname_active)
+        btm_process_remote_name (btm_cb.btm_inq_vars.remname_bda, NULL, 0, HCI_ERR_UNSPECIFIED);
+    else
+        btm_process_remote_name (NULL, NULL, 0, HCI_ERR_UNSPECIFIED);
+
+    btm_sec_rmt_name_request_complete (NULL, NULL, HCI_ERR_UNSPECIFIED);
+}
+
+/*******************************************************************************
+**
+** Function         btm_read_inq_tx_power_timeout
+**
+** Description      Callback when reading the inquiry tx power times out.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_read_inq_tx_power_timeout(UNUSED_ATTR void *data)
+{
+    tBTM_CMPL_CB  *p_cb = btm_cb.devcb.p_inq_tx_power_cmpl_cb;
+    btm_cb.devcb.p_inq_tx_power_cmpl_cb = NULL;
+    if (p_cb)
+        (*p_cb)((void *) NULL);
+}
+
+/*******************************************************************************
+**
+** Function         btm_read_inq_tx_power_complete
+**
+** Description      read inquiry tx power level complete callback function.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_read_inq_tx_power_complete(UINT8 *p)
+{
+    tBTM_CMPL_CB                *p_cb = btm_cb.devcb.p_inq_tx_power_cmpl_cb;
+    tBTM_INQ_TXPWR_RESULTS        results;
+
+    BTM_TRACE_DEBUG("%s", __func__);
+    alarm_cancel(btm_cb.devcb.read_inq_tx_power_timer);
+    btm_cb.devcb.p_inq_tx_power_cmpl_cb = NULL;
+
+    /* If there was a registered callback, call it */
+    if (p_cb)
+    {
+        STREAM_TO_UINT8  (results.hci_status, p);
+
+        if (results.hci_status == HCI_SUCCESS)
+        {
+            results.status = BTM_SUCCESS;
+
+            STREAM_TO_UINT8 (results.tx_power, p);
+            BTM_TRACE_EVENT ("BTM INQ TX POWER Complete: tx_power %d, hci status 0x%02x",
+                              results.tx_power, results.hci_status);
+        }
+        else
+            results.status = BTM_ERR_PROCESSING;
+
+        (*p_cb)(&results);
+    }
+
+}
+/*******************************************************************************
+**
+** Function         BTM_WriteEIR
+**
+** Description      This function is called to write EIR data to controller.
+**
+** Parameters       p_buff - allocated HCI command buffer including extended
+**                           inquriry response
+**
+** Returns          BTM_SUCCESS  - if successful
+**                  BTM_MODE_UNSUPPORTED - if local device cannot support it
+**
+*******************************************************************************/
+tBTM_STATUS BTM_WriteEIR( BT_HDR *p_buff )
+{
+    if (controller_get_interface()->supports_extended_inquiry_response())
+    {
+        BTM_TRACE_API("Write Extended Inquiry Response to controller");
+        btsnd_hcic_write_ext_inquiry_response (p_buff, BTM_EIR_DEFAULT_FEC_REQUIRED);
+        return BTM_SUCCESS;
+    }
+    else
+    {
+        osi_free(p_buff);
+        return BTM_MODE_UNSUPPORTED;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         BTM_CheckEirData
+**
+** Description      This function is called to get EIR data from significant part.
+**
+** Parameters       p_eir - pointer of EIR significant part
+**                  type   - finding EIR data type
+**                  p_length - return the length of EIR data not including type
+**
+** Returns          pointer of EIR data
+**
+*******************************************************************************/
+UINT8 *BTM_CheckEirData( UINT8 *p_eir, UINT8 type, UINT8 *p_length )
+{
+    UINT8 *p = p_eir;
+    UINT8 length;
+    UINT8 eir_type;
+    BTM_TRACE_API("BTM_CheckEirData type=0x%02X", type);
+
+    STREAM_TO_UINT8(length, p);
+    while( length && (p - p_eir <= HCI_EXT_INQ_RESPONSE_LEN))
+    {
+        STREAM_TO_UINT8(eir_type, p);
+        if( eir_type == type )
+        {
+            /* length doesn't include itself */
+            *p_length = length - 1; /* minus the length of type */
+            return p;
+        }
+        p += length - 1; /* skip the length of data */
+        STREAM_TO_UINT8(length, p);
+    }
+
+    *p_length = 0;
+    return NULL;
+}
+
+/*******************************************************************************
+**
+** Function         btm_convert_uuid_to_eir_service
+**
+** Description      This function is called to get the bit position of UUID.
+**
+** Parameters       uuid16 - UUID 16-bit
+**
+** Returns          BTM EIR service ID if found
+**                  BTM_EIR_MAX_SERVICES - if not found
+**
+*******************************************************************************/
+static UINT8 btm_convert_uuid_to_eir_service( UINT16 uuid16 )
+{
+    UINT8 xx;
+
+    for( xx = 0; xx < BTM_EIR_MAX_SERVICES; xx++ )
+    {
+        if( uuid16 == BTM_EIR_UUID_LKUP_TBL[xx])
+        {
+            return xx;
+        }
+    }
+    return BTM_EIR_MAX_SERVICES;
+}
+
+/*******************************************************************************
+**
+** Function         BTM_HasEirService
+**
+** Description      This function is called to know if UUID in bit map of UUID.
+**
+** Parameters       p_eir_uuid - bit map of UUID list
+**                  uuid16 - UUID 16-bit
+**
+** Returns          TRUE - if found
+**                  FALSE - if not found
+**
+*******************************************************************************/
+BOOLEAN BTM_HasEirService( UINT32 *p_eir_uuid, UINT16 uuid16 )
+{
+    UINT8 service_id;
+
+    service_id = btm_convert_uuid_to_eir_service(uuid16);
+    if( service_id < BTM_EIR_MAX_SERVICES )
+        return( BTM_EIR_HAS_SERVICE( p_eir_uuid, service_id ));
+    else
+        return( FALSE );
+}
+
+/*******************************************************************************
+**
+** Function         BTM_HasInquiryEirService
+**
+** Description      This function is called to know if UUID in bit map of UUID list.
+**
+** Parameters       p_results - inquiry results
+**                  uuid16 - UUID 16-bit
+**
+** Returns          BTM_EIR_FOUND - if found
+**                  BTM_EIR_NOT_FOUND - if not found and it is complete list
+**                  BTM_EIR_UNKNOWN - if not found and it is not complete list
+**
+*******************************************************************************/
+tBTM_EIR_SEARCH_RESULT BTM_HasInquiryEirService( tBTM_INQ_RESULTS *p_results, UINT16 uuid16 )
+{
+    if( BTM_HasEirService( p_results->eir_uuid, uuid16 ))
+    {
+        return BTM_EIR_FOUND;
+    }
+    else if( p_results->eir_complete_list )
+    {
+        return BTM_EIR_NOT_FOUND;
+    }
+    else
+        return BTM_EIR_UNKNOWN;
+}
+
+/*******************************************************************************
+**
+** Function         BTM_AddEirService
+**
+** Description      This function is called to add a service in bit map of UUID list.
+**
+** Parameters       p_eir_uuid - bit mask of UUID list for EIR
+**                  uuid16 - UUID 16-bit
+**
+** Returns          None
+**
+*******************************************************************************/
+void BTM_AddEirService( UINT32 *p_eir_uuid, UINT16 uuid16 )
+{
+    UINT8 service_id;
+
+    service_id = btm_convert_uuid_to_eir_service(uuid16);
+    if( service_id < BTM_EIR_MAX_SERVICES )
+        BTM_EIR_SET_SERVICE( p_eir_uuid, service_id );
+}
+
+/*******************************************************************************
+**
+** Function         BTM_RemoveEirService
+**
+** Description      This function is called to remove a service in bit map of UUID list.
+**
+** Parameters       p_eir_uuid - bit mask of UUID list for EIR
+**                  uuid16 - UUID 16-bit
+**
+** Returns          None
+**
+*******************************************************************************/
+void BTM_RemoveEirService( UINT32 *p_eir_uuid, UINT16 uuid16 )
+{
+    UINT8 service_id;
+
+    service_id = btm_convert_uuid_to_eir_service(uuid16);
+    if( service_id < BTM_EIR_MAX_SERVICES )
+        BTM_EIR_CLR_SERVICE( p_eir_uuid, service_id );
+}
+
+/*******************************************************************************
+**
+** Function         BTM_GetEirSupportedServices
+**
+** Description      This function is called to get UUID list from bit map of UUID list.
+**
+** Parameters       p_eir_uuid - bit mask of UUID list for EIR
+**                  p - reference of current pointer of EIR
+**                  max_num_uuid16 - max number of UUID can be written in EIR
+**                  num_uuid16 - number of UUID have been written in EIR
+**
+** Returns          BTM_EIR_MORE_16BITS_UUID_TYPE, if it has more than max
+**                  BTM_EIR_COMPLETE_16BITS_UUID_TYPE, otherwise
+**
+*******************************************************************************/
+UINT8 BTM_GetEirSupportedServices( UINT32 *p_eir_uuid,    UINT8 **p,
+                                   UINT8  max_num_uuid16, UINT8 *p_num_uuid16)
+{
+    UINT8 service_index;
+
+    *p_num_uuid16 = 0;
+
+    for(service_index = 0; service_index < BTM_EIR_MAX_SERVICES; service_index++)
+    {
+        if( BTM_EIR_HAS_SERVICE( p_eir_uuid, service_index ))
+        {
+            if( *p_num_uuid16 < max_num_uuid16 )
+            {
+                UINT16_TO_STREAM(*p, BTM_EIR_UUID_LKUP_TBL[service_index]);
+                (*p_num_uuid16)++;
+            }
+            /* if max number of UUIDs are stored and found one more */
+            else
+            {
+                return BTM_EIR_MORE_16BITS_UUID_TYPE;
+            }
+        }
+    }
+    return BTM_EIR_COMPLETE_16BITS_UUID_TYPE;
+}
+
+/*******************************************************************************
+**
+** Function         BTM_GetEirUuidList
+**
+** Description      This function parses EIR and returns UUID list.
+**
+** Parameters       p_eir - EIR
+**                  uuid_size - LEN_UUID_16, LEN_UUID_32, LEN_UUID_128
+**                  p_num_uuid - return number of UUID in found list
+**                  p_uuid_list - return UUID list
+**                  max_num_uuid - maximum number of UUID to be returned
+**
+** Returns          0 - if not found
+**                  BTM_EIR_COMPLETE_16BITS_UUID_TYPE
+**                  BTM_EIR_MORE_16BITS_UUID_TYPE
+**                  BTM_EIR_COMPLETE_32BITS_UUID_TYPE
+**                  BTM_EIR_MORE_32BITS_UUID_TYPE
+**                  BTM_EIR_COMPLETE_128BITS_UUID_TYPE
+**                  BTM_EIR_MORE_128BITS_UUID_TYPE
+**
+*******************************************************************************/
+UINT8 BTM_GetEirUuidList( UINT8 *p_eir, UINT8 uuid_size, UINT8 *p_num_uuid,
+                            UINT8 *p_uuid_list, UINT8 max_num_uuid)
+{
+    UINT8   *p_uuid_data;
+    UINT8   type;
+    UINT8   yy, xx;
+    UINT16  *p_uuid16 = (UINT16 *)p_uuid_list;
+    UINT32  *p_uuid32 = (UINT32 *)p_uuid_list;
+    char    buff[LEN_UUID_128 * 2 + 1];
+
+    p_uuid_data = btm_eir_get_uuid_list( p_eir, uuid_size, p_num_uuid, &type );
+    if( p_uuid_data == NULL )
+    {
+        return 0x00;
+    }
+
+    if( *p_num_uuid > max_num_uuid )
+    {
+        BTM_TRACE_WARNING("BTM_GetEirUuidList number of uuid in EIR = %d, size of uuid list = %d",
+                           *p_num_uuid, max_num_uuid );
+        *p_num_uuid = max_num_uuid;
+    }
+
+    BTM_TRACE_DEBUG("BTM_GetEirUuidList type = %02X, number of uuid = %d", type, *p_num_uuid );
+
+    if( uuid_size == LEN_UUID_16 )
+    {
+        for( yy = 0; yy < *p_num_uuid; yy++ )
+        {
+            STREAM_TO_UINT16(*(p_uuid16 + yy), p_uuid_data);
+            BTM_TRACE_DEBUG("                     0x%04X", *(p_uuid16 + yy));
+        }
+    }
+    else if( uuid_size == LEN_UUID_32 )
+    {
+        for( yy = 0; yy < *p_num_uuid; yy++ )
+        {
+            STREAM_TO_UINT32(*(p_uuid32 + yy), p_uuid_data);
+            BTM_TRACE_DEBUG("                     0x%08X", *(p_uuid32 + yy));
+        }
+    }
+    else if( uuid_size == LEN_UUID_128 )
+    {
+        for( yy = 0; yy < *p_num_uuid; yy++ )
+        {
+            STREAM_TO_ARRAY16(p_uuid_list + yy * LEN_UUID_128, p_uuid_data);
+            for( xx = 0; xx < LEN_UUID_128; xx++ )
+                sprintf(buff + xx*2, "%02X", *(p_uuid_list + yy * LEN_UUID_128 + xx));
+            BTM_TRACE_DEBUG("                     0x%s", buff);
+        }
+    }
+
+    return type;
+}
+
+
+/*******************************************************************************
+**
+** Function         btm_eir_get_uuid_list
+**
+** Description      This function searches UUID list in EIR.
+**
+** Parameters       p_eir - address of EIR
+**                  uuid_size - size of UUID to find
+**                  p_num_uuid - number of UUIDs found
+**                  p_uuid_list_type - EIR data type
+**
+** Returns          NULL - if UUID list with uuid_size is not found
+**                  beginning of UUID list in EIR - otherwise
+**
+*******************************************************************************/
+static UINT8 *btm_eir_get_uuid_list( UINT8 *p_eir, UINT8 uuid_size,
+                                     UINT8 *p_num_uuid, UINT8 *p_uuid_list_type )
+{
+    UINT8   *p_uuid_data;
+    UINT8   complete_type, more_type;
+    UINT8   uuid_len;
+
+    switch( uuid_size )
+    {
+    case LEN_UUID_16:
+        complete_type = BTM_EIR_COMPLETE_16BITS_UUID_TYPE;
+        more_type     = BTM_EIR_MORE_16BITS_UUID_TYPE;
+        break;
+    case LEN_UUID_32:
+        complete_type = BTM_EIR_COMPLETE_32BITS_UUID_TYPE;
+        more_type     = BTM_EIR_MORE_32BITS_UUID_TYPE;
+        break;
+    case LEN_UUID_128:
+        complete_type = BTM_EIR_COMPLETE_128BITS_UUID_TYPE;
+        more_type     = BTM_EIR_MORE_128BITS_UUID_TYPE;
+        break;
+    default:
+        *p_num_uuid = 0;
+        return NULL;
+        break;
+    }
+
+    p_uuid_data = BTM_CheckEirData( p_eir, complete_type, &uuid_len );
+    if(p_uuid_data == NULL)
+    {
+        p_uuid_data = BTM_CheckEirData( p_eir, more_type, &uuid_len );
+        *p_uuid_list_type = more_type;
+    }
+    else
+    {
+        *p_uuid_list_type = complete_type;
+    }
+
+    *p_num_uuid = uuid_len / uuid_size;
+    return p_uuid_data;
+}
+
+/*******************************************************************************
+**
+** Function         btm_convert_uuid_to_uuid16
+**
+** Description      This function converts UUID to UUID 16-bit.
+**
+** Parameters       p_uuid - address of UUID
+**                  uuid_size - size of UUID
+**
+** Returns          0 - if UUID cannot be converted to UUID 16-bit
+**                  UUID 16-bit - otherwise
+**
+*******************************************************************************/
+static UINT16 btm_convert_uuid_to_uuid16( UINT8 *p_uuid, UINT8 uuid_size )
+{
+    static const UINT8  base_uuid[LEN_UUID_128] = {0xFB, 0x34, 0x9B, 0x5F, 0x80, 0x00, 0x00, 0x80,
+                                                   0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
+    UINT16 uuid16 = 0;
+    UINT32 uuid32;
+    BOOLEAN is_base_uuid;
+    UINT8  xx;
+
+    switch (uuid_size)
+    {
+    case LEN_UUID_16:
+        STREAM_TO_UINT16 (uuid16, p_uuid);
+        break;
+    case LEN_UUID_32:
+        STREAM_TO_UINT32 (uuid32, p_uuid);
+        if (uuid32 < 0x10000)
+            uuid16 = (UINT16) uuid32;
+        break;
+    case LEN_UUID_128:
+        /* See if we can compress his UUID down to 16 or 32bit UUIDs */
+        is_base_uuid = TRUE;
+        for (xx = 0; xx < LEN_UUID_128 - 4; xx++)
+        {
+            if (p_uuid[xx] != base_uuid[xx])
+            {
+                is_base_uuid = FALSE;
+                break;
+            }
+        }
+        if (is_base_uuid)
+        {
+            if ((p_uuid[LEN_UUID_128 - 1] == 0) && (p_uuid[LEN_UUID_128 - 2] == 0))
+            {
+                p_uuid += (LEN_UUID_128 - 4);
+                STREAM_TO_UINT16(uuid16, p_uuid);
+            }
+        }
+        break;
+    default:
+        BTM_TRACE_WARNING("btm_convert_uuid_to_uuid16 invalid uuid size");
+        break;
+    }
+
+    return( uuid16);
+}
+
+/*******************************************************************************
+**
+** Function         btm_set_eir_uuid
+**
+** Description      This function is called to store received UUID into inquiry result.
+**
+** Parameters       p_eir - pointer of EIR significant part
+**                  p_results - pointer of inquiry result
+**
+** Returns          None
+**
+*******************************************************************************/
+void btm_set_eir_uuid( UINT8 *p_eir, tBTM_INQ_RESULTS *p_results )
+{
+    UINT8   *p_uuid_data;
+    UINT8   num_uuid;
+    UINT16  uuid16;
+    UINT8   yy;
+    UINT8   type = BTM_EIR_MORE_16BITS_UUID_TYPE;
+
+    p_uuid_data = btm_eir_get_uuid_list( p_eir, LEN_UUID_16, &num_uuid, &type );
+
+    if(type == BTM_EIR_COMPLETE_16BITS_UUID_TYPE)
+    {
+        p_results->eir_complete_list = TRUE;
+    }
+    else
+    {
+        p_results->eir_complete_list = FALSE;
+    }
+
+    BTM_TRACE_API("btm_set_eir_uuid eir_complete_list=0x%02X", p_results->eir_complete_list);
+
+    if( p_uuid_data )
+    {
+        for( yy = 0; yy < num_uuid; yy++ )
+        {
+            STREAM_TO_UINT16(uuid16, p_uuid_data);
+            BTM_AddEirService( p_results->eir_uuid, uuid16 );
+        }
+    }
+
+    p_uuid_data = btm_eir_get_uuid_list( p_eir, LEN_UUID_32, &num_uuid, &type );
+    if( p_uuid_data )
+    {
+        for( yy = 0; yy < num_uuid; yy++ )
+        {
+            uuid16 = btm_convert_uuid_to_uuid16( p_uuid_data, LEN_UUID_32 );
+            p_uuid_data += LEN_UUID_32;
+            if( uuid16 )
+                BTM_AddEirService( p_results->eir_uuid, uuid16 );
+        }
+    }
+
+    p_uuid_data = btm_eir_get_uuid_list( p_eir, LEN_UUID_128, &num_uuid, &type );
+    if( p_uuid_data )
+    {
+        for( yy = 0; yy < num_uuid; yy++ )
+        {
+            uuid16 = btm_convert_uuid_to_uuid16( p_uuid_data, LEN_UUID_128 );
+            p_uuid_data += LEN_UUID_128;
+            if( uuid16 )
+                BTM_AddEirService( p_results->eir_uuid, uuid16 );
+        }
+    }
+}
diff --git a/rtkbt/code/bt/stack/btm/btm_int.h b/rtkbt/code/bt/stack/btm/btm_int.h
new file mode 100755
index 0000000..d4204e1
--- /dev/null
+++ b/rtkbt/code/bt/stack/btm/btm_int.h
@@ -0,0 +1,1138 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  this file contains the main Bluetooth Manager (BTM) internal
+ *  definitions.
+ *
+ ******************************************************************************/
+#ifndef BTM_INT_H
+#define BTM_INT_H
+
+#include "bt_target.h"
+#include "bt_common.h"
+#include "hcidefs.h"
+
+#include "rfcdefs.h"
+#include "osi/include/alarm.h"
+#include "osi/include/list.h"
+#include "osi/include/fixed_queue.h"
+
+#include "btm_api.h"
+
+#if (BLE_INCLUDED == TRUE)
+#include "btm_ble_int.h"
+#if (SMP_INCLUDED == TRUE)
+#include "smp_api.h"
+#endif
+#endif
+#ifdef BLUETOOTH_RTK_COEX
+#include "rtk_parse.h"
+#endif
+#if BTM_MAX_LOC_BD_NAME_LEN > 0
+typedef char tBTM_LOC_BD_NAME[BTM_MAX_LOC_BD_NAME_LEN + 1];
+#endif
+
+#define  BTM_ACL_IS_CONNECTED(bda)   (btm_bda_to_acl (bda, BT_TRANSPORT_BR_EDR) != NULL)
+
+/* Definitions for Server Channel Number (SCN) management
+*/
+#define BTM_MAX_SCN      PORT_MAX_RFC_PORTS
+
+/* Define masks for supported and exception 2.0 ACL packet types
+*/
+#define BTM_ACL_SUPPORTED_PKTS_MASK      (HCI_PKT_TYPES_MASK_DM1        | \
+                                          HCI_PKT_TYPES_MASK_DH1        | \
+                                          HCI_PKT_TYPES_MASK_DM3        | \
+                                          HCI_PKT_TYPES_MASK_DH3        | \
+                                          HCI_PKT_TYPES_MASK_DM5        | \
+                                          HCI_PKT_TYPES_MASK_DH5)
+
+#define BTM_ACL_EXCEPTION_PKTS_MASK      (HCI_PKT_TYPES_MASK_NO_2_DH1   | \
+                                          HCI_PKT_TYPES_MASK_NO_3_DH1   | \
+                                          HCI_PKT_TYPES_MASK_NO_2_DH3   | \
+                                          HCI_PKT_TYPES_MASK_NO_3_DH3   | \
+                                          HCI_PKT_TYPES_MASK_NO_2_DH5   | \
+                                          HCI_PKT_TYPES_MASK_NO_3_DH5)
+
+#define BTM_EPR_AVAILABLE(p) ((HCI_ATOMIC_ENCRYPT_SUPPORTED((p)->peer_lmp_features[HCI_EXT_FEATURES_PAGE_0]) && \
+                               HCI_ATOMIC_ENCRYPT_SUPPORTED(controller_get_interface()->get_features_classic(0)->as_array)) \
+                               ? TRUE : FALSE)
+
+#define BTM_IS_BRCM_CONTROLLER() (controller_get_interface()->get_bt_version()->manufacturer == LMP_COMPID_BROADCOM)
+
+/* Define the ACL Management control structure
+*/
+typedef struct
+{
+    UINT16          hci_handle;
+    UINT16          pkt_types_mask;
+    UINT16          clock_offset;
+    BD_ADDR         remote_addr;
+    DEV_CLASS       remote_dc;
+    BD_NAME         remote_name;
+
+    UINT16          manufacturer;
+    UINT16          lmp_subversion;
+    UINT16          link_super_tout;
+    BD_FEATURES     peer_lmp_features[HCI_EXT_FEATURES_PAGE_MAX + 1];    /* Peer LMP Extended features mask table for the device */
+    UINT8           num_read_pages;
+    UINT8           lmp_version;
+
+    BOOLEAN         in_use;
+    UINT8           link_role;
+    BOOLEAN         link_up_issued;     /* True if busy_level link up has been issued */
+
+#define BTM_ACL_SWKEY_STATE_IDLE                0
+#define BTM_ACL_SWKEY_STATE_MODE_CHANGE         1
+#define BTM_ACL_SWKEY_STATE_ENCRYPTION_OFF      2
+#define BTM_ACL_SWKEY_STATE_SWITCHING           3
+#define BTM_ACL_SWKEY_STATE_ENCRYPTION_ON       4
+#define BTM_ACL_SWKEY_STATE_IN_PROGRESS         5
+    UINT8           switch_role_state;
+
+#define BTM_ACL_ENCRYPT_STATE_IDLE              0
+#define BTM_ACL_ENCRYPT_STATE_ENCRYPT_OFF       1   /* encryption turning off */
+#define BTM_ACL_ENCRYPT_STATE_TEMP_FUNC         2   /* temporarily off for change link key or role switch */
+#define BTM_ACL_ENCRYPT_STATE_ENCRYPT_ON        3   /* encryption turning on */
+    UINT8           encrypt_state;                  /* overall BTM encryption state */
+
+#if BLE_INCLUDED == TRUE
+    tBT_TRANSPORT   transport;
+    BD_ADDR         conn_addr;              /* local device address used for this connection */
+    UINT8           conn_addr_type;         /* local device address type for this connection */
+    BD_ADDR         active_remote_addr;     /* remote address used on this connection */
+    UINT8           active_remote_addr_type;         /* local device address type for this connection */
+    BD_FEATURES     peer_le_features;       /* Peer LE Used features mask for the device */
+
+#endif
+
+} tACL_CONN;
+
+/* Define the Device Management control structure
+*/
+typedef struct
+{
+    tBTM_DEV_STATUS_CB  *p_dev_status_cb;   /* Device status change callback        */
+    tBTM_VS_EVT_CB      *p_vend_spec_cb[BTM_MAX_VSE_CALLBACKS];     /* Register for vendor specific events  */
+
+    tBTM_CMPL_CB        *p_stored_link_key_cmpl_cb;   /* Read/Write/Delete stored link key    */
+
+    alarm_t             *read_local_name_timer; /* Read local name timer */
+    tBTM_CMPL_CB        *p_rln_cmpl_cb;     /* Callback function to be called when  */
+                                            /* read local name function complete    */
+    alarm_t             *read_rssi_timer;   /* Read RSSI timer */
+    tBTM_CMPL_CB        *p_rssi_cmpl_cb;    /* Callback function to be called when  */
+                                            /* read RSSI function completes */
+    alarm_t             *read_link_quality_timer;
+    tBTM_CMPL_CB        *p_link_qual_cmpl_cb; /* Callback function to be called when  */
+                                            /* read link quality function completes */
+
+    alarm_t             *read_inq_tx_power_timer;
+    tBTM_CMPL_CB        *p_inq_tx_power_cmpl_cb; /* Callback function to be called when  */
+                                            /* read inq tx power function completes  */
+
+    alarm_t             *qos_setup_timer;   /* QoS setup timer */
+    tBTM_CMPL_CB        *p_qos_setup_cmpl_cb; /* Callback function to be called when  */
+                                            /* qos setup function completes         */
+
+    tBTM_ROLE_SWITCH_CMPL switch_role_ref_data;
+    tBTM_CMPL_CB        *p_switch_role_cb;  /* Callback function to be called when  */
+                                            /* requested switch role is completed   */
+
+    alarm_t             *read_tx_power_timer; /* Read tx power timer */
+    tBTM_CMPL_CB        *p_tx_power_cmpl_cb;/* Callback function to be called       */
+
+    DEV_CLASS            dev_class;         /* Local device class                   */
+
+#if BLE_INCLUDED == TRUE
+
+    tBTM_CMPL_CB        *p_le_test_cmd_cmpl_cb;   /* Callback function to be called when
+                                                  LE test mode command has been sent successfully */
+
+    BD_ADDR                 read_tx_pwr_addr;   /* read TX power target address     */
+
+#define BTM_LE_SUPPORT_STATE_SIZE   8
+UINT8                   le_supported_states[BTM_LE_SUPPORT_STATE_SIZE];
+
+tBTM_BLE_LOCAL_ID_KEYS id_keys; /* local BLE ID keys */
+BT_OCTET16 ble_encryption_key_value; /* BLE encryption key */
+
+#if BTM_BLE_CONFORMANCE_TESTING == TRUE
+    BOOLEAN                 no_disc_if_pair_fail;
+    BOOLEAN                 enable_test_mac_val;
+    BT_OCTET8               test_mac;
+    BOOLEAN                 enable_test_local_sign_cntr;
+    UINT32                  test_local_sign_cntr;
+#endif
+
+#endif  /* BLE_INCLUDED */
+
+    tBTM_IO_CAP          loc_io_caps;       /* IO capability of the local device */
+    tBTM_AUTH_REQ        loc_auth_req;      /* the auth_req flag  */
+    BOOLEAN              secure_connections_only;    /* Rejects service level 0 connections if */
+                                                     /* itself or peer device doesn't support */
+                                                     /* secure connections */
+} tBTM_DEVCB;
+
+
+/* Define the structures and constants used for inquiry
+*/
+
+/* Definitions of limits for inquiries */
+#define BTM_PER_INQ_MIN_MAX_PERIOD      HCI_PER_INQ_MIN_MAX_PERIOD
+#define BTM_PER_INQ_MAX_MAX_PERIOD      HCI_PER_INQ_MAX_MAX_PERIOD
+#define BTM_PER_INQ_MIN_MIN_PERIOD      HCI_PER_INQ_MIN_MIN_PERIOD
+#define BTM_PER_INQ_MAX_MIN_PERIOD      HCI_PER_INQ_MAX_MIN_PERIOD
+#define BTM_MAX_INQUIRY_LENGTH          HCI_MAX_INQUIRY_LENGTH
+#define BTM_MIN_INQUIRY_LEN             0x01
+
+#define BTM_MIN_INQ_TX_POWER    -70
+#define BTM_MAX_INQ_TX_POWER    20
+
+typedef struct
+{
+    UINT32          inq_count;          /* Used for determining if a response has already been      */
+                                        /* received for the current inquiry operation. (We do not   */
+                                        /* want to flood the caller with multiple responses from    */
+                                        /* the same device.                                         */
+    BD_ADDR         bd_addr;
+} tINQ_BDADDR;
+
+typedef struct
+{
+    UINT32          time_of_resp;
+    UINT32          inq_count;          /* "timestamps" the entry with a particular inquiry count   */
+                                        /* Used for determining if a response has already been      */
+                                        /* received for the current inquiry operation. (We do not   */
+                                        /* want to flood the caller with multiple responses from    */
+                                        /* the same device.                                         */
+    tBTM_INQ_INFO   inq_info;
+    BOOLEAN         in_use;
+
+#if (BLE_INCLUDED == TRUE)
+    BOOLEAN         scan_rsp;
+#endif
+} tINQ_DB_ENT;
+
+
+enum
+{
+    INQ_NONE,
+    INQ_LE_OBSERVE,
+    INQ_GENERAL
+};
+typedef UINT8 tBTM_INQ_TYPE;
+
+typedef struct
+{
+    tBTM_CMPL_CB *p_remname_cmpl_cb;
+
+#define BTM_EXT_RMT_NAME_TIMEOUT_MS (40 * 1000) /* 40 seconds */
+
+
+    alarm_t         *remote_name_timer;
+
+    UINT16           discoverable_mode;
+    UINT16           connectable_mode;
+    UINT16           page_scan_window;
+    UINT16           page_scan_period;
+    UINT16           inq_scan_window;
+    UINT16           inq_scan_period;
+    UINT16           inq_scan_type;
+    UINT16           page_scan_type;        /* current page scan type */
+    tBTM_INQ_TYPE    scan_type;
+
+    BD_ADDR          remname_bda;           /* Name of bd addr for active remote name request */
+#define BTM_RMT_NAME_INACTIVE       0
+#define BTM_RMT_NAME_EXT            0x1     /* Initiated through API */
+#define BTM_RMT_NAME_SEC            0x2     /* Initiated internally by security manager */
+#define BTM_RMT_NAME_INQ            0x4     /* Remote name initiated internally by inquiry */
+    BOOLEAN          remname_active;        /* State of a remote name request by external API */
+
+    tBTM_CMPL_CB    *p_inq_cmpl_cb;
+    tBTM_INQ_RESULTS_CB *p_inq_results_cb;
+    tBTM_CMPL_CB    *p_inq_ble_cmpl_cb;     /*completion callback exclusively for LE Observe*/
+    tBTM_INQ_RESULTS_CB *p_inq_ble_results_cb;/*results callback exclusively for LE observe*/
+    tBTM_CMPL_CB    *p_inqfilter_cmpl_cb;   /* Called (if not NULL) after inquiry filter completed */
+    UINT32           inq_counter;           /* Counter incremented each time an inquiry completes */
+                                            /* Used for determining whether or not duplicate devices */
+                                            /* have responded to the same inquiry */
+    tINQ_BDADDR     *p_bd_db;               /* Pointer to memory that holds bdaddrs */
+    UINT16           num_bd_entries;        /* Number of entries in database */
+    UINT16           max_bd_entries;        /* Maximum number of entries that can be stored */
+    tINQ_DB_ENT      inq_db[BTM_INQ_DB_SIZE];
+    tBTM_INQ_PARMS   inqparms;              /* Contains the parameters for the current inquiry */
+    tBTM_INQUIRY_CMPL inq_cmpl_info;        /* Status and number of responses from the last inquiry */
+
+    UINT16           per_min_delay;         /* Current periodic minimum delay */
+    UINT16           per_max_delay;         /* Current periodic maximum delay */
+    BOOLEAN          inqfilt_active;
+    UINT8            pending_filt_complete_event; /* to take care of btm_event_filter_complete corresponding to */
+                                                  /* inquiry that has been cancelled*/
+    UINT8            inqfilt_type;          /* Contains the inquiry filter type (BD ADDR, COD, or Clear) */
+
+#define BTM_INQ_INACTIVE_STATE      0
+#define BTM_INQ_CLR_FILT_STATE      1   /* Currently clearing the inquiry filter preceeding the inquiry request */
+                                        /* (bypassed if filtering is not used)                                  */
+#define BTM_INQ_SET_FILT_STATE      2   /* Sets the new filter (or turns off filtering) in this state */
+#define BTM_INQ_ACTIVE_STATE        3   /* Actual inquiry or periodic inquiry is in progress */
+#define BTM_INQ_REMNAME_STATE       4   /* Remote name requests are active  */
+
+    UINT8            state;             /* Current state that the inquiry process is in */
+    UINT8            inq_active;        /* Bit Mask indicating type of inquiry is active */
+    BOOLEAN          no_inc_ssp;        /* TRUE, to stop inquiry on incoming SSP */
+#if (defined(BTA_HOST_INTERLEAVE_SEARCH) && BTA_HOST_INTERLEAVE_SEARCH == TRUE)
+    btm_inq_state    next_state;        /*interleaving state to determine next mode to be inquired*/
+#endif
+} tBTM_INQUIRY_VAR_ST;
+
+/* The MSB of the clock offset field indicates that the offset is valid if TRUE */
+#define BTM_CLOCK_OFFSET_VALID      0x8000
+
+/* Define the structures needed by security management
+*/
+
+#define BTM_SEC_INVALID_HANDLE  0xFFFF
+
+typedef UINT8 *BTM_BD_NAME_PTR;                        /* Pointer to Device name */
+
+/* Security callback is called by this unit when security
+**   procedures are completed.  Parameters are
+**              BD Address of remote
+**              Result of the operation
+*/
+typedef tBTM_SEC_CBACK tBTM_SEC_CALLBACK;
+
+typedef void (tBTM_SCO_IND_CBACK) (UINT16 sco_inx) ;
+
+/* MACROs to convert from SCO packet types mask to ESCO and back */
+#define BTM_SCO_PKT_TYPE_MASK   (   HCI_PKT_TYPES_MASK_HV1      \
+                                 |  HCI_PKT_TYPES_MASK_HV2      \
+                                 |  HCI_PKT_TYPES_MASK_HV3)
+
+/* Mask defining only the SCO types of an esco packet type */
+#define BTM_ESCO_PKT_TYPE_MASK  (   HCI_ESCO_PKT_TYPES_MASK_HV1 \
+                                 |  HCI_ESCO_PKT_TYPES_MASK_HV2 \
+                                 |  HCI_ESCO_PKT_TYPES_MASK_HV3)
+
+#define BTM_SCO_2_ESCO(scotype)  ((UINT16)(((scotype) & BTM_SCO_PKT_TYPE_MASK) >> 5))
+#define BTM_ESCO_2_SCO(escotype) ((UINT16)(((escotype) & BTM_ESCO_PKT_TYPE_MASK) << 5))
+
+/* Define masks for supported and exception 2.0 SCO packet types
+*/
+#define BTM_SCO_SUPPORTED_PKTS_MASK      (HCI_ESCO_PKT_TYPES_MASK_HV1       | \
+                                          HCI_ESCO_PKT_TYPES_MASK_HV2       | \
+                                          HCI_ESCO_PKT_TYPES_MASK_HV3       | \
+                                          HCI_ESCO_PKT_TYPES_MASK_EV3       | \
+                                          HCI_ESCO_PKT_TYPES_MASK_EV4       | \
+                                          HCI_ESCO_PKT_TYPES_MASK_EV5)
+
+#define BTM_SCO_EXCEPTION_PKTS_MASK      (HCI_ESCO_PKT_TYPES_MASK_NO_2_EV3  | \
+                                          HCI_ESCO_PKT_TYPES_MASK_NO_3_EV3  | \
+                                          HCI_ESCO_PKT_TYPES_MASK_NO_2_EV5  | \
+                                          HCI_ESCO_PKT_TYPES_MASK_NO_3_EV5)
+
+
+#define BTM_SCO_ROUTE_UNKNOWN       0xff
+
+/* Define the structure that contains (e)SCO data */
+typedef struct
+{
+    tBTM_ESCO_CBACK    *p_esco_cback;   /* Callback for eSCO events     */
+    tBTM_ESCO_PARAMS    setup;
+    tBTM_ESCO_DATA      data;           /* Connection complete information */
+    UINT8               hci_status;
+} tBTM_ESCO_INFO;
+
+/* Define the structure used for SCO Management
+*/
+typedef struct
+{
+    tBTM_ESCO_INFO   esco;              /* Current settings             */
+#if BTM_SCO_HCI_INCLUDED == TRUE
+    fixed_queue_t   *xmit_data_q;       /* SCO data transmitting queue  */
+#endif
+    tBTM_SCO_CB     *p_conn_cb;         /* Callback for when connected  */
+    tBTM_SCO_CB     *p_disc_cb;         /* Callback for when disconnect */
+    UINT16           state;             /* The state of the SCO link    */
+    UINT16           hci_handle;        /* HCI Handle                   */
+    BOOLEAN          is_orig;           /* TRUE if the originator       */
+    BOOLEAN          rem_bd_known;      /* TRUE if remote BD addr known */
+
+} tSCO_CONN;
+
+/* SCO Management control block */
+typedef struct
+{
+    tBTM_SCO_IND_CBACK  *app_sco_ind_cb;
+#if BTM_SCO_HCI_INCLUDED == TRUE
+    tBTM_SCO_DATA_CB     *p_data_cb;        /* Callback for SCO data over HCI */
+    UINT32               xmit_window_size; /* Total SCO window in bytes  */
+#endif
+    tSCO_CONN            sco_db[BTM_MAX_SCO_LINKS];
+    tBTM_ESCO_PARAMS     def_esco_parms;
+    BD_ADDR              xfer_addr;
+    UINT16               sco_disc_reason;
+    BOOLEAN              esco_supported;    /* TRUE if 1.2 cntlr AND supports eSCO links */
+    tBTM_SCO_TYPE        desired_sco_mode;
+    tBTM_SCO_TYPE        xfer_sco_type;
+    tBTM_SCO_PCM_PARAM   sco_pcm_param;
+    tBTM_SCO_CODEC_TYPE  codec_in_use;      /* None, CVSD, MSBC, etc. */
+#if BTM_SCO_HCI_INCLUDED == TRUE
+    tBTM_SCO_ROUTE_TYPE  sco_path;
+#endif
+
+} tSCO_CB;
+
+
+#if BTM_SCO_INCLUDED == TRUE
+extern void     btm_set_sco_ind_cback( tBTM_SCO_IND_CBACK *sco_ind_cb );
+extern void     btm_accept_sco_link(UINT16 sco_inx, tBTM_ESCO_PARAMS *p_setup,
+                                    tBTM_SCO_CB *p_conn_cb, tBTM_SCO_CB *p_disc_cb);
+extern void     btm_reject_sco_link(UINT16 sco_inx );
+extern void btm_sco_chk_pend_rolechange (UINT16 hci_handle);
+extern void btm_sco_disc_chk_pend_for_modechange (UINT16 hci_handle);
+
+#else
+#define btm_accept_sco_link(sco_inx, p_setup, p_conn_cb, p_disc_cb)
+#define btm_reject_sco_link(sco_inx)
+#define btm_set_sco_ind_cback(sco_ind_cb)
+#define btm_sco_chk_pend_rolechange(hci_handle)
+#endif  /* BTM_SCO_INCLUDED */
+
+/*
+** Define structure for Security Service Record.
+** A record exists for each service registered with the Security Manager
+*/
+#define BTM_SEC_OUT_FLAGS   (BTM_SEC_OUT_AUTHENTICATE | BTM_SEC_OUT_ENCRYPT | BTM_SEC_OUT_AUTHORIZE)
+#define BTM_SEC_IN_FLAGS    (BTM_SEC_IN_AUTHENTICATE | BTM_SEC_IN_ENCRYPT | BTM_SEC_IN_AUTHORIZE)
+
+#define BTM_SEC_OUT_LEVEL4_FLAGS   (BTM_SEC_OUT_AUTHENTICATE | BTM_SEC_OUT_ENCRYPT | \
+                                    BTM_SEC_OUT_MITM | BTM_SEC_MODE4_LEVEL4)
+
+#define BTM_SEC_IN_LEVEL4_FLAGS    (BTM_SEC_IN_AUTHENTICATE | BTM_SEC_IN_ENCRYPT | \
+                                    BTM_SEC_IN_MITM | BTM_SEC_MODE4_LEVEL4)
+typedef struct
+{
+    UINT32          mx_proto_id;        /* Service runs over this multiplexer protocol */
+    UINT32          orig_mx_chan_id;    /* Channel on the multiplexer protocol    */
+    UINT32          term_mx_chan_id;    /* Channel on the multiplexer protocol    */
+    UINT16          psm;                /* L2CAP PSM value */
+    UINT16          security_flags;     /* Bitmap of required security features */
+    UINT8           service_id;         /* Passed in authorization callback */
+#if (L2CAP_UCD_INCLUDED == TRUE)
+    UINT16          ucd_security_flags; /* Bitmap of required security features for UCD */
+#endif
+#if BTM_SEC_SERVICE_NAME_LEN > 0
+    UINT8           orig_service_name[BTM_SEC_SERVICE_NAME_LEN + 1];
+    UINT8           term_service_name[BTM_SEC_SERVICE_NAME_LEN + 1];
+#endif
+} tBTM_SEC_SERV_REC;
+
+#if BLE_INCLUDED == TRUE
+/* LE Security information of device in Slave Role */
+typedef struct
+{
+    BT_OCTET16          irk;            /* peer diverified identity root */
+    BT_OCTET16          pltk;           /* peer long term key */
+    BT_OCTET16          pcsrk;          /* peer SRK peer device used to secured sign local data  */
+
+    BT_OCTET16          lltk;           /* local long term key */
+    BT_OCTET16          lcsrk;          /* local SRK peer device used to secured sign local data  */
+
+    BT_OCTET8           rand;           /* random vector for LTK generation */
+    UINT16              ediv;           /* LTK diversifier of this slave device */
+    UINT16              div;            /* local DIV  to generate local LTK=d1(ER,DIV,0) and CSRK=d1(ER,DIV,1)  */
+    UINT8               sec_level;      /* local pairing security level */
+    UINT8               key_size;       /* key size of the LTK delivered to peer device */
+    UINT8               srk_sec_level;  /* security property of peer SRK for this device */
+    UINT8               local_csrk_sec_level;  /* security property of local CSRK for this device */
+
+    UINT32              counter;        /* peer sign counter for verifying rcv signed cmd */
+    UINT32              local_counter;  /* local sign counter for sending signed write cmd*/
+}tBTM_SEC_BLE_KEYS;
+
+typedef struct
+{
+    BD_ADDR pseudo_addr; /* LE pseudo address of the device if different from device address  */
+    tBLE_ADDR_TYPE      ble_addr_type;  /* LE device type: public or random address */
+    tBLE_ADDR_TYPE      static_addr_type;   /* static address type */
+    BD_ADDR             static_addr;    /* static address */
+
+#define BTM_WHITE_LIST_BIT          0x01
+#define BTM_RESOLVING_LIST_BIT      0x02
+    UINT8               in_controller_list;   /* in controller resolving list or not */
+    UINT8               resolving_list_index;
+#if BLE_PRIVACY_SPT == TRUE
+    BD_ADDR             cur_rand_addr;  /* current random address */
+
+#define BTM_BLE_ADDR_PSEUDO         0   /* address index device record */
+#define BTM_BLE_ADDR_RRA            1   /* cur_rand_addr */
+#define BTM_BLE_ADDR_STATIC         2   /* static_addr  */
+    UINT8               active_addr_type;
+#endif
+
+#if SMP_INCLUDED == TRUE
+    tBTM_LE_KEY_TYPE    key_type;       /* bit mask of valid key types in record */
+    tBTM_SEC_BLE_KEYS   keys;           /* LE device security info in slave rode */
+#endif
+} tBTM_SEC_BLE;
+
+
+#endif  /* BLE_INCLUDED */
+
+/* Peering bond type */
+enum
+{
+    BOND_TYPE_UNKNOWN,
+    BOND_TYPE_PERSISTENT,
+    BOND_TYPE_TEMPORARY
+};
+typedef UINT8 tBTM_BOND_TYPE;
+
+/*
+** Define structure for Security Device Record.
+** A record exists for each device authenticated with this device
+*/
+typedef struct
+{
+    tBTM_SEC_SERV_REC   *p_cur_service;
+    tBTM_SEC_CALLBACK   *p_callback;
+    void                *p_ref_data;
+    UINT32               timestamp;         /* Timestamp of the last connection   */
+    UINT32               trusted_mask[BTM_SEC_SERVICE_ARRAY_SIZE];  /* Bitwise OR of trusted services     */
+    UINT16               hci_handle;        /* Handle to connection when exists   */
+    UINT16               clock_offset;      /* Latest known clock offset          */
+    BD_ADDR              bd_addr;           /* BD_ADDR of the device              */
+    DEV_CLASS            dev_class;         /* DEV_CLASS of the device            */
+    LINK_KEY             link_key;          /* Device link key                    */
+    UINT8                pin_code_length;   /* Length of the pin_code used for paring */
+
+#ifdef BLUETOOTH_RTK_COEX
+    UINT8                profile_map;       /* Profile_map For BT_Wifi Coex */
+#endif
+#define BTM_SEC_AUTHORIZED      BTM_SEC_FLAG_AUTHORIZED     /* 0x01 */
+#define BTM_SEC_AUTHENTICATED   BTM_SEC_FLAG_AUTHENTICATED  /* 0x02 */
+#define BTM_SEC_ENCRYPTED       BTM_SEC_FLAG_ENCRYPTED      /* 0x04 */
+#define BTM_SEC_NAME_KNOWN      0x08
+#define BTM_SEC_LINK_KEY_KNOWN  BTM_SEC_FLAG_LKEY_KNOWN /* 0x10 */
+#define BTM_SEC_LINK_KEY_AUTHED BTM_SEC_FLAG_LKEY_AUTHED    /* 0x20 */
+#define BTM_SEC_ROLE_SWITCHED   0x40
+#define BTM_SEC_IN_USE          0x80
+    /* LE link security flag */
+#define BTM_SEC_LE_AUTHENTICATED   0x0200   /* LE link is encrypted after pairing with MITM */
+#define BTM_SEC_LE_ENCRYPTED       0x0400   /* LE link is encrypted */
+#define BTM_SEC_LE_NAME_KNOWN      0x0800   /* not used */
+#define BTM_SEC_LE_LINK_KEY_KNOWN  0x1000   /* bonded with peer (peer LTK and/or SRK is saved) */
+#define BTM_SEC_LE_LINK_KEY_AUTHED 0x2000   /* pairing is done with MITM */
+#define BTM_SEC_16_DIGIT_PIN_AUTHED 0x4000   /* pairing is done with 16 digit pin */
+
+    UINT16           sec_flags;          /* Current device security state      */
+
+    tBTM_BD_NAME    sec_bd_name;        /* User friendly name of the device. (may be truncated to save space in dev_rec table) */
+    BD_FEATURES     features[HCI_EXT_FEATURES_PAGE_MAX + 1];           /* Features supported by the device */
+    UINT8           num_read_pages;
+
+#define BTM_SEC_STATE_IDLE               0
+#define BTM_SEC_STATE_AUTHENTICATING     1
+#define BTM_SEC_STATE_ENCRYPTING         2
+#define BTM_SEC_STATE_GETTING_NAME       3
+#define BTM_SEC_STATE_AUTHORIZING        4
+#define BTM_SEC_STATE_SWITCHING_ROLE     5
+#define BTM_SEC_STATE_DISCONNECTING      6 /* disconnecting BR/EDR */
+#define BTM_SEC_STATE_DELAY_FOR_ENC      7 /* delay to check for encryption to work around */
+                                           /* controller problems */
+#define BTM_SEC_STATE_DISCONNECTING_BLE  8 /* disconnecting BLE */
+#define BTM_SEC_STATE_DISCONNECTING_BOTH 9 /* disconnecting BR/EDR and BLE */
+
+    UINT8       sec_state;              /* Operating state                    */
+    BOOLEAN     is_originator;          /* TRUE if device is originating connection */
+#if (L2CAP_UCD_INCLUDED == TRUE)
+    BOOLEAN     is_ucd;                 /* TRUE if device is sending or receiving UCD */
+                                        /* if incoming security failed, received UCD will be discarded */
+#endif
+    BOOLEAN     role_master;            /* TRUE if current mode is master     */
+    UINT16      security_required;      /* Security required for connection   */
+    BOOLEAN     link_key_not_sent;      /* link key notification has not been sent waiting for name */
+    UINT8       link_key_type;          /* Type of key used in pairing   */
+    BOOLEAN     link_key_changed;       /* Changed link key during current connection */
+
+#define BTM_MAX_PRE_SM4_LKEY_TYPE   BTM_LKEY_TYPE_REMOTE_UNIT /* the link key type used by legacy pairing */
+
+#define BTM_SM4_UNKNOWN     0x00
+#define BTM_SM4_KNOWN       0x10
+#define BTM_SM4_TRUE        0x11
+#define BTM_SM4_REQ_PEND    0x08        /* set this bit when getting remote features */
+#define BTM_SM4_UPGRADE     0x04        /* set this bit when upgrading link key */
+#define BTM_SM4_RETRY       0x02        /* set this bit to retry on HCI_ERR_KEY_MISSING or HCI_ERR_LMP_ERR_TRANS_COLLISION */
+#define BTM_SM4_DD_ACP      0x20        /* set this bit to indicate peer initiated dedicated bonding */
+#define BTM_SM4_CONN_PEND   0x40        /* set this bit to indicate accepting acl conn; to be cleared on btm_acl_created */
+    UINT8       sm4;                    /* BTM_SM4_TRUE, if the peer supports SM4 */
+    tBTM_IO_CAP rmt_io_caps;            /* IO capability of the peer device */
+    tBTM_AUTH_REQ rmt_auth_req;         /* the auth_req flag as in the IO caps rsp evt */
+    BOOLEAN     remote_supports_secure_connections;
+    BOOLEAN     remote_features_needed; /* set to true if the local device is in */
+                                        /* "Secure Connections Only" mode and it receives */
+                                        /* HCI_IO_CAPABILITY_REQUEST_EVT from the peer before */
+                                        /* it knows peer's support for Secure Connections */
+
+    UINT16              ble_hci_handle;         /* use in DUMO connection */
+    UINT8               enc_key_size;           /* current link encryption key size */
+    tBT_DEVICE_TYPE     device_type;
+    BOOLEAN             new_encryption_key_is_p256; /* Set to TRUE when the newly generated LK
+                                                    ** is generated from P-256.
+                                                    ** Link encrypted with such LK can be used
+                                                    ** for SM over BR/EDR.
+                                                    */
+    BOOLEAN no_smp_on_br;       /* if set to TRUE then SMP on BR/EDR doesn't */
+                                /* work, i.e. link keys crosspairing */
+                                /* SC BR/EDR->SC LE doesn't happen */
+    tBTM_BOND_TYPE bond_type;   /* peering bond type */
+
+#if BLE_INCLUDED == TRUE
+    tBTM_SEC_BLE        ble;
+    tBTM_LE_CONN_PRAMS  conn_params;
+#endif
+
+#if BTM_DISC_DURING_RS == TRUE
+#define BTM_SEC_RS_NOT_PENDING          0           /* Role Switch not in progress */
+#define BTM_SEC_RS_PENDING              1           /* Role Switch in progress */
+#define BTM_SEC_DISC_PENDING            2           /* Disconnect is pending */
+    UINT8           rs_disc_pending;
+#endif
+#define BTM_SEC_NO_LAST_SERVICE_ID      0
+    UINT8           last_author_service_id;         /* ID of last serviced authorized: Reset after each l2cap connection */
+
+} tBTM_SEC_DEV_REC;
+
+#define BTM_SEC_IS_SM4(sm) ((BOOLEAN)(BTM_SM4_TRUE == ((sm)&BTM_SM4_TRUE)))
+#define BTM_SEC_IS_SM4_LEGACY(sm) ((BOOLEAN)(BTM_SM4_KNOWN == ((sm)&BTM_SM4_TRUE)))
+#define BTM_SEC_IS_SM4_UNKNOWN(sm) ((BOOLEAN)(BTM_SM4_UNKNOWN == ((sm)&BTM_SM4_TRUE)))
+
+#define BTM_SEC_LE_MASK    (BTM_SEC_LE_AUTHENTICATED|BTM_SEC_LE_ENCRYPTED|BTM_SEC_LE_LINK_KEY_KNOWN|BTM_SEC_LE_LINK_KEY_AUTHED)
+
+/*
+** Define device configuration structure
+*/
+typedef struct
+{
+#if BTM_MAX_LOC_BD_NAME_LEN > 0
+    tBTM_LOC_BD_NAME bd_name;                    /* local Bluetooth device name */
+#endif
+    BOOLEAN          pin_type;                   /* TRUE if PIN type is fixed */
+    UINT8            pin_code_len;               /* Bonding information */
+    PIN_CODE         pin_code;                   /* PIN CODE if pin type is fixed */
+    BOOLEAN          connectable;                /* If TRUE page scan should be enabled */
+    UINT8            def_inq_scan_mode;          /* ??? limited/general/none */
+} tBTM_CFG;
+
+enum
+{
+    BTM_PM_ST_ACTIVE  = BTM_PM_STS_ACTIVE,
+    BTM_PM_ST_HOLD    = BTM_PM_STS_HOLD,
+    BTM_PM_ST_SNIFF   = BTM_PM_STS_SNIFF,
+    BTM_PM_ST_PARK    = BTM_PM_STS_PARK,
+    BTM_PM_ST_PENDING = BTM_PM_STS_PENDING,
+    BTM_PM_ST_INVALID = 0xFF
+};
+typedef UINT8 tBTM_PM_STATE;
+
+enum
+{
+    BTM_PM_SET_MODE_EVT,    /* Set power mode API is called. */
+    BTM_PM_UPDATE_EVT,
+    BTM_PM_RD_MODE_EVT     /* Read power mode API is called. */
+};
+typedef UINT8 tBTM_PM_EVENT;
+
+typedef struct
+{
+    UINT16          event;
+    UINT16          len;
+    UINT8           link_ind;
+} tBTM_PM_MSG_DATA;
+
+typedef struct
+{
+    UINT8 hci_status;
+    UINT8 mode;
+    UINT16 interval;
+} tBTM_PM_MD_CHG_DATA;
+
+typedef struct
+{
+    UINT8          pm_id;      /* the entity that calls SetPowerMode API */
+    tBTM_PM_PWR_MD *p_pmd;
+} tBTM_PM_SET_MD_DATA;
+
+typedef struct
+{
+    void        *p_data;
+    UINT8        link_ind;
+} tBTM_PM_SM_DATA;
+
+typedef struct
+{
+    tBTM_PM_PWR_MD req_mode[BTM_MAX_PM_RECORDS+1]; /* the desired mode and parameters of the connection*/
+    tBTM_PM_PWR_MD set_mode;  /* the mode and parameters sent down to the host controller. */
+    UINT16         interval;  /* the interval from last mode change event. */
+#if (BTM_SSR_INCLUDED == TRUE)
+    UINT16         max_lat;   /* stored SSR maximum latency */
+    UINT16         min_rmt_to;/* stored SSR minimum remote timeout */
+    UINT16         min_loc_to;/* stored SSR minimum local timeout */
+#endif
+    tBTM_PM_STATE  state;     /* contains the current mode of the connection */
+    BOOLEAN        chg_ind;   /* a request change indication */
+} tBTM_PM_MCB;
+
+#define BTM_PM_REC_NOT_USED 0
+typedef struct
+{
+    tBTM_PM_STATUS_CBACK *cback;/* to notify the registered party of mode change event */
+    UINT8                 mask; /* registered request mask. 0, if this entry is not used */
+} tBTM_PM_RCB;
+
+enum
+{
+    BTM_BLI_ACL_UP_EVT,
+    BTM_BLI_ACL_DOWN_EVT,
+    BTM_BLI_PAGE_EVT,
+    BTM_BLI_PAGE_DONE_EVT,
+    BTM_BLI_INQ_EVT,
+    BTM_BLI_INQ_CANCEL_EVT,
+    BTM_BLI_INQ_DONE_EVT
+};
+typedef UINT8 tBTM_BLI_EVENT;
+
+/* Pairing State */
+enum
+{
+    BTM_PAIR_STATE_IDLE,                        /* Idle                                         */
+    BTM_PAIR_STATE_GET_REM_NAME,                /* Getting the remote name (to check for SM4)   */
+    BTM_PAIR_STATE_WAIT_PIN_REQ,                /* Started authentication, waiting for PIN req (PIN is pre-fetched) */
+    BTM_PAIR_STATE_WAIT_LOCAL_PIN,              /* Waiting for local PIN code                   */
+    BTM_PAIR_STATE_WAIT_NUMERIC_CONFIRM,        /* Waiting user 'yes' to numeric confirmation   */
+    BTM_PAIR_STATE_KEY_ENTRY,                   /* Key entry state (we are a keyboard)          */
+    BTM_PAIR_STATE_WAIT_LOCAL_OOB_RSP,          /* Waiting for local response to peer OOB data  */
+    BTM_PAIR_STATE_WAIT_LOCAL_IOCAPS,           /* Waiting for local IO capabilities and OOB data */
+    BTM_PAIR_STATE_INCOMING_SSP,                /* Incoming SSP (got peer IO caps when idle)    */
+    BTM_PAIR_STATE_WAIT_AUTH_COMPLETE,          /* All done, waiting authentication cpmplete    */
+    BTM_PAIR_STATE_WAIT_DISCONNECT              /* Waiting to disconnect the ACL                */
+};
+typedef UINT8 tBTM_PAIRING_STATE;
+
+#define BTM_PAIR_FLAGS_WE_STARTED_DD    0x01    /* We want to do dedicated bonding              */
+#define BTM_PAIR_FLAGS_PEER_STARTED_DD  0x02    /* Peer initiated dedicated bonding             */
+#define BTM_PAIR_FLAGS_DISC_WHEN_DONE   0x04    /* Disconnect when done     */
+#define BTM_PAIR_FLAGS_PIN_REQD         0x08    /* set this bit when pin_callback is called     */
+#define BTM_PAIR_FLAGS_PRE_FETCH_PIN    0x10    /* set this bit when pre-fetch pin     */
+#define BTM_PAIR_FLAGS_REJECTED_CONNECT 0x20    /* set this bit when rejected incoming connection  */
+#define BTM_PAIR_FLAGS_WE_CANCEL_DD     0x40    /* set this bit when cancelling a bonding procedure */
+#define BTM_PAIR_FLAGS_LE_ACTIVE        0x80    /* use this bit when SMP pairing is active */
+
+
+typedef struct
+{
+    BOOLEAN             is_mux;
+    BD_ADDR             bd_addr;
+    UINT16              psm;
+    BOOLEAN             is_orig;
+    tBTM_SEC_CALLBACK   *p_callback;
+    void                *p_ref_data;
+    UINT32              mx_proto_id;
+    UINT32              mx_chan_id;
+    tBT_TRANSPORT       transport;
+    tBTM_BLE_SEC_ACT    sec_act;
+} tBTM_SEC_QUEUE_ENTRY;
+
+#if (L2CAP_UCD_INCLUDED == TRUE)
+
+#define CONN_ORIENT_TERM                0x00    /* incoming connection oriented */
+#define CONN_ORIENT_ORIG                0x01    /* outgoing connection oriented */
+#define CONNLESS_TERM                   0x02    /* incoming connectionless      */
+#define CONNLESS_ORIG                   0x03    /* outgoing connectionless      */
+#define CONNECTION_TYPE_ORIG_MASK       0x01    /* mask for direction           */
+#define CONNECTION_TYPE_CONNLESS_MASK   0x02    /* mask for connectionless or not */
+typedef UINT8 CONNECTION_TYPE;
+
+#else
+
+#define CONN_ORIENT_TERM                FALSE
+#define CONN_ORIENT_ORIG                TRUE
+typedef BOOLEAN CONNECTION_TYPE;
+
+#endif /* (L2CAP_UCD_INCLUDED == TRUE) */
+
+/* Define a structure to hold all the BTM data
+*/
+
+#define BTM_STATE_BUFFER_SIZE  5                  /* size of state buffer */
+
+typedef struct
+{
+    tBTM_CFG    cfg;                        /* Device configuration */
+
+    /****************************************************
+    **      ACL Management
+    ****************************************************/
+    tACL_CONN   acl_db[MAX_L2CAP_LINKS];
+    UINT8       btm_scn[BTM_MAX_SCN];        /* current SCNs: TRUE if SCN is in use */
+    UINT16      btm_def_link_policy;
+    UINT16      btm_def_link_super_tout;
+
+    tBTM_BL_EVENT_MASK     bl_evt_mask;
+    tBTM_BL_CHANGE_CB     *p_bl_changed_cb;    /* Callback for when Busy Level changed */
+
+    /****************************************************
+    **      Power Management
+    ****************************************************/
+    tBTM_PM_MCB pm_mode_db[MAX_L2CAP_LINKS];   /* per ACL link */
+    tBTM_PM_RCB pm_reg_db[BTM_MAX_PM_RECORDS+1]; /* per application/module */
+    UINT8       pm_pend_link;  /* the index of acl_db, which has a pending PM cmd */
+    UINT8       pm_pend_id;    /* the id pf the module, which has a pending PM cmd */
+
+    /*****************************************************
+    **      Device control
+    *****************************************************/
+    tBTM_DEVCB  devcb;
+
+    /*****************************************************
+    **      BLE Device controllers
+    *****************************************************/
+#if (BLE_INCLUDED == TRUE)
+    tBTM_BLE_CB             ble_ctr_cb;
+
+    UINT16                  enc_handle;
+    BT_OCTET8               enc_rand;   /* received rand value from LTK request*/
+    UINT16                  ediv;       /* received ediv value from LTK request */
+    UINT8                   key_size;
+    tBTM_BLE_VSC_CB         cmn_ble_vsc_cb;
+#endif
+
+                                            /* Packet types supported by the local device */
+    UINT16      btm_acl_pkt_types_supported;
+    UINT16      btm_sco_pkt_types_supported;
+
+
+    /*****************************************************
+    **      Inquiry
+    *****************************************************/
+    tBTM_INQUIRY_VAR_ST     btm_inq_vars;
+
+    /*****************************************************
+    **      SCO Management
+    *****************************************************/
+#if BTM_SCO_INCLUDED == TRUE
+    tSCO_CB             sco_cb;
+#endif
+
+    /*****************************************************
+    **      Security Management
+    *****************************************************/
+    tBTM_APPL_INFO          api;
+
+#define BTM_SEC_MAX_RMT_NAME_CALLBACKS  2
+    tBTM_RMT_NAME_CALLBACK  *p_rmt_name_callback[BTM_SEC_MAX_RMT_NAME_CALLBACKS];
+
+    tBTM_SEC_DEV_REC        *p_collided_dev_rec;
+    alarm_t                 *sec_collision_timer;
+    UINT32                   collision_start_time;
+    UINT32                   max_collision_delay;
+    UINT32                   dev_rec_count;      /* Counter used for device record timestamp */
+    UINT8                    security_mode;
+    BOOLEAN                  pairing_disabled;
+    BOOLEAN                  connect_only_paired;
+    BOOLEAN                  security_mode_changed;  /* mode changed during bonding */
+    BOOLEAN                  pin_type_changed;       /* pin type changed during bonding */
+    BOOLEAN                  sec_req_pending;       /*   TRUE if a request is pending */
+
+    UINT8                    pin_code_len;  /* for legacy devices */
+    PIN_CODE                 pin_code;      /* for legacy devices */
+    tBTM_PAIRING_STATE       pairing_state; /* The current pairing state    */
+    UINT8                    pairing_flags; /* The current pairing flags    */
+    BD_ADDR                  pairing_bda;   /* The device currently pairing */
+    alarm_t                 *pairing_timer; /* Timer for pairing process    */
+    UINT16                   disc_handle;   /* for legacy devices */
+    UINT8                    disc_reason;   /* for legacy devices */
+    tBTM_SEC_SERV_REC        sec_serv_rec[BTM_SEC_MAX_SERVICE_RECORDS];
+    list_t                  *sec_dev_rec;   /* list of tBTM_SEC_DEV_REC */
+    tBTM_SEC_SERV_REC       *p_out_serv;
+    tBTM_MKEY_CALLBACK      *mkey_cback;
+
+    BD_ADDR                  connecting_bda;
+    DEV_CLASS                connecting_dc;
+
+    UINT8                   acl_disc_reason;
+    UINT8                   trace_level;
+    UINT8                   busy_level; /* the current busy level */
+    BOOLEAN                 is_paging;  /* TRUE, if paging is in progess */
+    BOOLEAN                 is_inquiry; /* TRUE, if inquiry is in progess */
+    fixed_queue_t          *page_queue;
+    BOOLEAN                 paging;
+    BOOLEAN                 discing;
+    fixed_queue_t          *sec_pending_q;  /* pending sequrity requests in tBTM_SEC_QUEUE_ENTRY format */
+
+#if  (!defined(BT_TRACE_VERBOSE) || (BT_TRACE_VERBOSE == FALSE))
+    char state_temp_buffer[BTM_STATE_BUFFER_SIZE];
+#endif
+} tBTM_CB;
+
+/* security action for L2CAP COC channels */
+#define BTM_SEC_OK                1
+#define BTM_SEC_ENCRYPT           2    /* encrypt the link with current key */
+#define BTM_SEC_ENCRYPT_NO_MITM   3    /* unauthenticated encryption or better */
+#define BTM_SEC_ENCRYPT_MITM      4    /* authenticated encryption */
+#define BTM_SEC_ENC_PENDING       5    /* wait for link encryption pending */
+
+typedef UINT8 tBTM_SEC_ACTION;
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+#if BTM_DYNAMIC_MEMORY == FALSE
+extern tBTM_CB  btm_cb;
+#else
+extern tBTM_CB *btm_cb_ptr;
+#define btm_cb (*btm_cb_ptr)
+#endif
+
+/* Internal functions provided by btm_main.c
+********************************************
+*/
+extern void         btm_init (void);
+
+/* Internal functions provided by btm_inq.c
+*******************************************
+*/
+extern tBTM_STATUS  btm_initiate_rem_name(BD_ADDR remote_bda,
+                                          tBTM_INQ_INFO *p_cur,
+                                          UINT8 origin, period_ms_t timeout_ms,
+                                          tBTM_CMPL_CB *p_cb);
+
+extern void         btm_process_remote_name (BD_ADDR bda, BD_NAME name, UINT16 evt_len,
+                                             UINT8 hci_status);
+extern void         btm_inq_rmt_name_failed(void);
+extern void         btm_inq_remote_name_timer_timeout(void *data);
+
+/* Inquiry related functions */
+extern void         btm_clr_inq_db (BD_ADDR p_bda);
+extern void         btm_inq_db_init (void);
+extern void         btm_process_inq_results (UINT8 *p, UINT8 inq_res_mode);
+extern void         btm_process_inq_complete (UINT8 status, UINT8 mode);
+extern void         btm_process_cancel_complete(UINT8 status, UINT8 mode);
+extern void         btm_event_filter_complete (UINT8 *p);
+extern void         btm_inq_stop_on_ssp(void);
+extern void         btm_inq_clear_ssp(void);
+extern tINQ_DB_ENT *btm_inq_db_find (BD_ADDR p_bda);
+extern BOOLEAN      btm_inq_find_bdaddr (BD_ADDR p_bda);
+
+extern BOOLEAN btm_lookup_eir(BD_ADDR_PTR p_rem_addr);
+
+/* Internal functions provided by btm_acl.c
+********************************************
+*/
+extern void         btm_acl_init (void);
+extern void         btm_acl_created (BD_ADDR bda, DEV_CLASS dc, BD_NAME bdn,
+                                     UINT16 hci_handle, UINT8 link_role, tBT_TRANSPORT transport);
+extern void         btm_acl_removed (BD_ADDR bda, tBT_TRANSPORT transport);
+extern void         btm_acl_device_down (void);
+extern void         btm_acl_update_busy_level (tBTM_BLI_EVENT event);
+
+extern void         btm_cont_rswitch (tACL_CONN *p,
+                                      tBTM_SEC_DEV_REC *p_dev_rec,
+                                      UINT8 hci_status);
+
+extern UINT8        btm_handle_to_acl_index (UINT16 hci_handle);
+extern void         btm_read_link_policy_complete (UINT8 *p);
+
+extern void         btm_read_rssi_timeout(void *data);
+extern void         btm_read_rssi_complete(UINT8 *p);
+
+extern void         btm_read_tx_power_timeout(void *data);
+extern void         btm_read_tx_power_complete(UINT8 *p, BOOLEAN is_ble);
+
+extern void         btm_read_link_quality_timeout(void *data);
+extern void         btm_read_link_quality_complete(UINT8 *p);
+
+extern tBTM_STATUS  btm_set_packet_types (tACL_CONN *p, UINT16 pkt_types);
+extern void         btm_process_clk_off_comp_evt (UINT16 hci_handle, UINT16 clock_offset);
+extern void         btm_acl_role_changed (UINT8 hci_status, BD_ADDR bd_addr, UINT8 new_role);
+extern void         btm_acl_encrypt_change (UINT16 handle, UINT8 status, UINT8 encr_enable);
+extern UINT16       btm_get_acl_disc_reason_code (void);
+extern tBTM_STATUS  btm_remove_acl (BD_ADDR bd_addr, tBT_TRANSPORT transport);
+extern void         btm_read_remote_features_complete (UINT8 *p);
+extern void         btm_read_remote_ext_features_complete (UINT8 *p);
+extern void         btm_read_remote_ext_features_failed (UINT8 status, UINT16 handle);
+extern void         btm_read_remote_version_complete (UINT8 *p);
+extern void         btm_establish_continue (tACL_CONN *p_acl_cb);
+
+extern void         btm_acl_chk_peer_pkt_type_support (tACL_CONN *p, UINT16 *p_pkt_type);
+/* Read maximum data packet that can be sent over current connection */
+extern UINT16 btm_get_max_packet_size (BD_ADDR addr);
+extern tACL_CONN *btm_bda_to_acl (BD_ADDR bda, tBT_TRANSPORT transport);
+extern BOOLEAN    btm_acl_notif_conn_collision (BD_ADDR bda);
+
+extern void btm_pm_reset(void);
+extern void btm_pm_sm_alloc(UINT8 ind);
+extern void btm_pm_proc_cmd_status(UINT8 status);
+extern void btm_pm_proc_mode_change (UINT8 hci_status, UINT16 hci_handle, UINT8 mode,
+                                     UINT16 interval);
+extern void btm_pm_proc_ssr_evt (UINT8 *p, UINT16 evt_len);
+extern tBTM_STATUS btm_read_power_mode_state (BD_ADDR remote_bda,
+                                                      tBTM_PM_STATE *pmState);
+#if BTM_SCO_INCLUDED == TRUE
+extern void btm_sco_chk_pend_unpark (UINT8 hci_status, UINT16 hci_handle);
+#else
+#define btm_sco_chk_pend_unpark(hci_status, hci_handle)
+#endif /* BTM_SCO_INCLUDED */
+
+extern void btm_qos_setup_timeout(void *data);
+extern void btm_qos_setup_complete(UINT8 status, UINT16 handle,
+                                   FLOW_SPEC *p_flow);
+
+
+/* Internal functions provided by btm_sco.c
+********************************************
+*/
+extern void btm_sco_init (void);
+extern void btm_sco_connected (UINT8 hci_status, BD_ADDR bda, UINT16 hci_handle,
+                               tBTM_ESCO_DATA *p_esco_data);
+extern void btm_esco_proc_conn_chg (UINT8 status, UINT16 handle, UINT8 tx_interval,
+                                    UINT8 retrans_window, UINT16 rx_pkt_len,
+                                    UINT16 tx_pkt_len);
+extern void btm_sco_conn_req (BD_ADDR bda,  DEV_CLASS dev_class, UINT8 link_type);
+extern void btm_sco_removed (UINT16 hci_handle, UINT8 reason);
+extern void btm_sco_acl_removed (BD_ADDR bda);
+extern void btm_route_sco_data (BT_HDR *p_msg);
+extern BOOLEAN btm_is_sco_active (UINT16 handle);
+extern void btm_remove_sco_links (BD_ADDR bda);
+extern BOOLEAN btm_is_sco_active_by_bdaddr (BD_ADDR remote_bda);
+
+extern tBTM_SCO_TYPE btm_read_def_esco_mode (tBTM_ESCO_PARAMS *p_parms);
+extern UINT16  btm_find_scb_by_handle (UINT16 handle);
+extern void btm_sco_flush_sco_data(UINT16 sco_inx);
+
+/* Internal functions provided by btm_devctl.c
+**********************************************
+*/
+extern void btm_dev_init(void);
+extern void btm_read_local_name_timeout(void *data);
+extern void btm_read_local_name_complete(UINT8 *p, UINT16 evt_len);
+
+#if (BLE_INCLUDED == TRUE)
+extern void btm_ble_add_2_white_list_complete(UINT8 status);
+extern void btm_ble_remove_from_white_list_complete(UINT8 *p, UINT16 evt_len);
+extern void btm_ble_clear_white_list_complete(UINT8 *p, UINT16 evt_len);
+extern BOOLEAN btm_ble_addr_resolvable(BD_ADDR rpa, tBTM_SEC_DEV_REC *p_dev_rec);
+extern tBTM_STATUS btm_ble_read_resolving_list_entry(tBTM_SEC_DEV_REC *p_dev_rec);
+extern BOOLEAN btm_ble_resolving_list_load_dev(tBTM_SEC_DEV_REC *p_dev_rec);
+extern void btm_ble_resolving_list_remove_dev(tBTM_SEC_DEV_REC *p_dev_rec);
+#endif  /* BLE_INCLUDED */
+
+/* Vendor Specific Command complete evt handler */
+extern void btm_vsc_complete (UINT8 *p, UINT16 cc_opcode, UINT16 evt_len,
+                              tBTM_CMPL_CB *p_vsc_cplt_cback);
+extern void btm_inq_db_reset (void);
+extern void btm_vendor_specific_evt (UINT8 *p, UINT8 evt_len);
+extern void btm_delete_stored_link_key_complete (UINT8 *p);
+extern void btm_report_device_status (tBTM_DEV_STATUS status);
+
+
+/* Internal functions provided by btm_dev.c
+**********************************************
+*/
+extern BOOLEAN btm_dev_support_switch (BD_ADDR bd_addr);
+
+extern tBTM_SEC_DEV_REC  *btm_sec_alloc_dev (BD_ADDR bd_addr);
+extern void               btm_sec_free_dev (tBTM_SEC_DEV_REC *p_dev_rec);
+extern tBTM_SEC_DEV_REC  *btm_find_dev (BD_ADDR bd_addr);
+extern tBTM_SEC_DEV_REC  *btm_find_or_alloc_dev (BD_ADDR bd_addr);
+extern tBTM_SEC_DEV_REC  *btm_find_dev_by_handle (UINT16 handle);
+extern tBTM_BOND_TYPE     btm_get_bond_type_dev(BD_ADDR bd_addr);
+extern BOOLEAN            btm_set_bond_type_dev(BD_ADDR bd_addr,
+                                                tBTM_BOND_TYPE bond_type);
+
+/* Internal functions provided by btm_sec.c
+**********************************************
+*/
+extern BOOLEAN btm_dev_support_switch (BD_ADDR bd_addr);
+extern tBTM_STATUS  btm_sec_l2cap_access_req (BD_ADDR bd_addr, UINT16 psm,
+                                       UINT16 handle, CONNECTION_TYPE conn_type,
+                                       tBTM_SEC_CALLBACK *p_callback, void *p_ref_data);
+extern tBTM_STATUS  btm_sec_mx_access_request (BD_ADDR bd_addr, UINT16 psm, BOOLEAN is_originator,
+                                        UINT32 mx_proto_id, UINT32 mx_chan_id,
+                                        tBTM_SEC_CALLBACK *p_callback, void *p_ref_data);
+extern void  btm_sec_conn_req (UINT8 *bda, UINT8 *dc);
+extern void btm_create_conn_cancel_complete (UINT8 *p);
+
+extern void  btm_read_inq_tx_power_timeout(void *data);
+extern void  btm_read_inq_tx_power_complete(UINT8 *p);
+
+extern void  btm_sec_init (UINT8 sec_mode);
+extern void  btm_sec_dev_reset (void);
+extern void  btm_sec_abort_access_req (BD_ADDR bd_addr);
+extern void  btm_sec_auth_complete (UINT16 handle, UINT8 status);
+extern void  btm_sec_encrypt_change (UINT16 handle, UINT8 status, UINT8 encr_enable);
+extern void  btm_sec_connected (UINT8 *bda, UINT16 handle, UINT8 status, UINT8 enc_mode);
+extern tBTM_STATUS btm_sec_disconnect (UINT16 handle, UINT8 reason);
+extern void  btm_sec_disconnected (UINT16 handle, UINT8 reason);
+extern void  btm_sec_rmt_name_request_complete (UINT8 *bd_addr, UINT8 *bd_name, UINT8 status);
+extern void  btm_sec_rmt_host_support_feat_evt (UINT8 *p);
+extern void  btm_io_capabilities_req (UINT8 *p);
+extern void  btm_io_capabilities_rsp (UINT8 *p);
+extern void  btm_proc_sp_req_evt (tBTM_SP_EVT event, UINT8 *p);
+extern void  btm_keypress_notif_evt (UINT8 *p);
+extern void  btm_simple_pair_complete (UINT8 *p);
+extern void  btm_sec_link_key_notification (UINT8 *p_bda, UINT8 *p_link_key, UINT8 key_type);
+extern void  btm_sec_link_key_request (UINT8 *p_bda);
+extern void  btm_sec_pin_code_request (UINT8 *p_bda);
+extern void  btm_sec_update_clock_offset (UINT16 handle, UINT16 clock_offset);
+extern void  btm_sec_dev_rec_cback_event (tBTM_SEC_DEV_REC *p_dev_rec, UINT8 res, BOOLEAN is_le_trasnport);
+extern void btm_sec_set_peer_sec_caps (tACL_CONN *p_acl_cb, tBTM_SEC_DEV_REC *p_dev_rec);
+
+#if BLE_INCLUDED == TRUE
+extern void  btm_sec_clear_ble_keys (tBTM_SEC_DEV_REC  *p_dev_rec);
+extern BOOLEAN btm_sec_is_a_bonded_dev (BD_ADDR bda);
+extern void btm_consolidate_dev(tBTM_SEC_DEV_REC *p_target_rec);
+extern BOOLEAN btm_sec_is_le_capable_dev (BD_ADDR bda);
+extern BOOLEAN btm_ble_init_pseudo_addr (tBTM_SEC_DEV_REC *p_dev_rec, BD_ADDR new_pseudo_addr);
+extern tBTM_SEC_SERV_REC *btm_sec_find_first_serv (CONNECTION_TYPE conn_type, UINT16 psm);
+extern BOOLEAN btm_ble_start_sec_check(BD_ADDR bd_addr, UINT16 psm, BOOLEAN is_originator,
+                            tBTM_SEC_CALLBACK *p_callback, void *p_ref_data);
+#endif /* BLE_INCLUDED */
+
+extern tINQ_DB_ENT *btm_inq_db_new (BD_ADDR p_bda);
+
+extern void  btm_rem_oob_req (UINT8 *p);
+extern void  btm_read_local_oob_complete (UINT8 *p);
+
+extern void  btm_acl_resubmit_page (void);
+extern void  btm_acl_reset_paging (void);
+extern void  btm_acl_paging (BT_HDR *p, BD_ADDR dest);
+extern UINT8 btm_sec_clr_service_by_psm (UINT16 psm);
+extern void  btm_sec_clr_temp_auth_service (BD_ADDR bda);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/rtkbt/code/bt/stack/btm/btm_main.c b/rtkbt/code/bt/stack/btm/btm_main.c
new file mode 100755
index 0000000..93b0ecc
--- /dev/null
+++ b/rtkbt/code/bt/stack/btm/btm_main.c
@@ -0,0 +1,81 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2002-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains the definition of the btm control block when
+ *  BTM_DYNAMIC_MEMORY is used.
+ *
+ ******************************************************************************/
+
+#include "bt_types.h"
+#include "bt_target.h"
+#include <string.h>
+#include "btm_int.h"
+#include "stack_config.h"
+
+/* Global BTM control block structure
+*/
+#if BTM_DYNAMIC_MEMORY == FALSE
+tBTM_CB  btm_cb;
+#endif
+
+/*******************************************************************************
+**
+** Function         btm_init
+**
+** Description      This function is called at BTM startup to allocate the
+**                  control block (if using dynamic memory), and initializes the
+**                  tracing level.  It then initializes the various components of
+**                  btm.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_init (void)
+{
+    /* All fields are cleared; nonzero fields are reinitialized in appropriate function */
+    memset(&btm_cb, 0, sizeof(tBTM_CB));
+    btm_cb.page_queue = fixed_queue_new(SIZE_MAX);
+    btm_cb.sec_pending_q = fixed_queue_new(SIZE_MAX);
+    btm_cb.sec_collision_timer = alarm_new("btm.sec_collision_timer");
+    btm_cb.pairing_timer = alarm_new("btm.pairing_timer");
+
+#if defined(BTM_INITIAL_TRACE_LEVEL)
+    btm_cb.trace_level = BTM_INITIAL_TRACE_LEVEL;
+#else
+    btm_cb.trace_level = BT_TRACE_LEVEL_NONE;    /* No traces */
+#endif
+    /* Initialize BTM component structures */
+    btm_inq_db_init();                  /* Inquiry Database and Structures */
+    btm_acl_init();                     /* ACL Database and Structures */
+    /* Security Manager Database and Structures */
+    if (stack_config_get_interface()->get_pts_secure_only_mode())
+        btm_sec_init(BTM_SEC_MODE_SC);
+    else
+        btm_sec_init(BTM_SEC_MODE_SP);
+#if BTM_SCO_INCLUDED == TRUE
+    btm_sco_init();                     /* SCO Database and Structures (If included) */
+#endif
+
+    btm_cb.sec_dev_rec = list_new(osi_free);
+
+    btm_dev_init();                     /* Device Manager Structures & HCI_Reset */
+}
+
+
diff --git a/rtkbt/code/bt/stack/btm/btm_pm.c b/rtkbt/code/bt/stack/btm/btm_pm.c
new file mode 100755
index 0000000..e24563b
--- /dev/null
+++ b/rtkbt/code/bt/stack/btm/btm_pm.c
@@ -0,0 +1,1039 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2000-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/*****************************************************************************
+ *
+ *  This file contains functions that manages ACL link modes.
+ *  This includes operations such as active, hold,
+ *  park and sniff modes.
+ *
+ *  This module contains both internal and external (API)
+ *  functions. External (API) functions are distinguishable
+ *  by their names beginning with uppercase BTM.
+ *
+ *****************************************************************************/
+
+#define LOG_TAG "bt_btm_pm"
+
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "bt_types.h"
+#include "bt_utils.h"
+#include "btm_api.h"
+#include "btm_int.h"
+#include "btu.h"
+#include "bt_common.h"
+#include "hcidefs.h"
+#include "hcimsgs.h"
+#include "l2c_int.h"
+#include "osi/include/log.h"
+
+/*****************************************************************************/
+/*      to handle different modes                                            */
+/*****************************************************************************/
+#define BTM_PM_STORED_MASK      0x80 /* set this mask if the command is stored */
+#define BTM_PM_NUM_SET_MODES    3 /* only hold, sniff & park */
+
+/* Usage:  (ptr_features[ offset ] & mask )?TRUE:FALSE */
+/* offset to supported feature */
+const UINT8 btm_pm_mode_off[BTM_PM_NUM_SET_MODES] = {0,    0,    1};
+/* mask to supported feature */
+const UINT8 btm_pm_mode_msk[BTM_PM_NUM_SET_MODES] = {0x40, 0x80, 0x01};
+
+#define BTM_PM_GET_MD1      1
+#define BTM_PM_GET_MD2      2
+#define BTM_PM_GET_COMP     3
+
+const UINT8 btm_pm_md_comp_matrix[BTM_PM_NUM_SET_MODES*BTM_PM_NUM_SET_MODES] =
+{
+    BTM_PM_GET_COMP,
+    BTM_PM_GET_MD2,
+    BTM_PM_GET_MD2,
+
+    BTM_PM_GET_MD1,
+    BTM_PM_GET_COMP,
+    BTM_PM_GET_MD1,
+
+    BTM_PM_GET_MD1,
+    BTM_PM_GET_MD2,
+    BTM_PM_GET_COMP
+};
+
+/* function prototype */
+static int btm_pm_find_acl_ind(BD_ADDR remote_bda);
+static tBTM_STATUS btm_pm_snd_md_req( UINT8 pm_id, int link_ind, tBTM_PM_PWR_MD *p_mode );
+static const char *mode_to_string(tBTM_PM_MODE mode);
+
+/*
+#ifdef BTM_PM_DEBUG
+#undef BTM_PM_DEBUG
+#define BTM_PM_DEBUG    TRUE
+#endif
+*/
+
+#if BTM_PM_DEBUG == TRUE
+const char * btm_pm_state_str[] =
+{
+    "pm_active_state",
+    "pm_hold_state",
+    "pm_sniff_state",
+    "pm_park_state",
+    "pm_pend_state"
+};
+
+const char * btm_pm_event_str[] =
+{
+    "pm_set_mode_event",
+    "pm_hci_sts_event",
+    "pm_mod_chg_event",
+    "pm_update_event"
+};
+
+const char * btm_pm_action_str[] =
+{
+    "pm_set_mode_action",
+    "pm_update_db_action",
+    "pm_mod_chg_action",
+    "pm_hci_sts_action",
+    "pm_update_action"
+};
+#endif  // BTM_PM_DEBUG
+
+/*****************************************************************************/
+/*                     P U B L I C  F U N C T I O N S                        */
+/*****************************************************************************/
+/*******************************************************************************
+**
+** Function         BTM_PmRegister
+**
+** Description      register or deregister with power manager
+**
+** Returns          BTM_SUCCESS if successful,
+**                  BTM_NO_RESOURCES if no room to hold registration
+**                  BTM_ILLEGAL_VALUE
+**
+*******************************************************************************/
+tBTM_STATUS BTM_PmRegister (UINT8 mask, UINT8 *p_pm_id, tBTM_PM_STATUS_CBACK *p_cb)
+{
+    int xx;
+
+    /* de-register */
+    if(mask & BTM_PM_DEREG)
+    {
+        if(*p_pm_id >= BTM_MAX_PM_RECORDS)
+            return BTM_ILLEGAL_VALUE;
+        btm_cb.pm_reg_db[*p_pm_id].mask = BTM_PM_REC_NOT_USED;
+        return BTM_SUCCESS;
+    }
+
+    for(xx=0; xx<BTM_MAX_PM_RECORDS; xx++)
+    {
+        /* find an unused entry */
+        if(btm_cb.pm_reg_db[xx].mask == BTM_PM_REC_NOT_USED)
+        {
+            /* if register for notification, should provide callback routine */
+            if(mask & BTM_PM_REG_NOTIF)
+            {
+                if(p_cb == NULL)
+                    return BTM_ILLEGAL_VALUE;
+                btm_cb.pm_reg_db[xx].cback = p_cb;
+            }
+            btm_cb.pm_reg_db[xx].mask = mask;
+            *p_pm_id = xx;
+            return BTM_SUCCESS;
+        }
+    }
+
+    return BTM_NO_RESOURCES;
+}
+
+/*******************************************************************************
+**
+** Function         BTM_SetPowerMode
+**
+** Description      store the mode in control block or
+**                  alter ACL connection behavior.
+**
+** Returns          BTM_SUCCESS if successful,
+**                  BTM_UNKNOWN_ADDR if bd addr is not active or bad
+**
+*******************************************************************************/
+tBTM_STATUS BTM_SetPowerMode (UINT8 pm_id, BD_ADDR remote_bda, tBTM_PM_PWR_MD *p_mode)
+{
+    UINT8               *p_features;
+    int               ind, acl_ind;
+    tBTM_PM_MCB *p_cb = NULL;   /* per ACL link */
+    tBTM_PM_MODE        mode;
+    int                 temp_pm_id;
+
+    if(pm_id >= BTM_MAX_PM_RECORDS)
+        pm_id = BTM_PM_SET_ONLY_ID;
+
+    if(p_mode == NULL)
+        return BTM_ILLEGAL_VALUE;
+
+    BTM_TRACE_API( "BTM_SetPowerMode: pm_id %d BDA: %08x mode:0x%x", pm_id,
+                   (remote_bda[2]<<24)+(remote_bda[3]<<16)+(remote_bda[4]<<8)+remote_bda[5], p_mode->mode);
+
+    /* take out the force bit */
+    mode = p_mode->mode & ~BTM_PM_MD_FORCE;
+
+    acl_ind = btm_pm_find_acl_ind(remote_bda);
+    if(acl_ind == MAX_L2CAP_LINKS)
+        return (BTM_UNKNOWN_ADDR);
+
+    p_cb = &(btm_cb.pm_mode_db[acl_ind]);
+
+    if(mode != BTM_PM_MD_ACTIVE)
+    {
+        /* check if the requested mode is supported */
+        ind = mode - BTM_PM_MD_HOLD; /* make it base 0 */
+        p_features = BTM_ReadLocalFeatures();
+        if( !(p_features[ btm_pm_mode_off[ind] ] & btm_pm_mode_msk[ind] ) )
+            return BTM_MODE_UNSUPPORTED;
+    }
+
+    if(mode == p_cb->state) /* the requested mode is current mode */
+    {
+        /* already in the requested mode and the current interval has less latency than the max */
+        if( (mode == BTM_PM_MD_ACTIVE) ||
+            ((p_mode->mode & BTM_PM_MD_FORCE) && (p_mode->max >= p_cb->interval) && (p_mode->min <= p_cb->interval)) ||
+            ((p_mode->mode & BTM_PM_MD_FORCE)==0 && (p_mode->max >= p_cb->interval)) )
+        {
+            BTM_TRACE_DEBUG( "BTM_SetPowerMode: mode:0x%x interval %d max:%d, min:%d", p_mode->mode, p_cb->interval, p_mode->max, p_mode->min);
+            return BTM_SUCCESS;
+        }
+    }
+
+    temp_pm_id = pm_id;
+    if(pm_id == BTM_PM_SET_ONLY_ID)
+        temp_pm_id = BTM_MAX_PM_RECORDS;
+
+    /* update mode database */
+    if( ((pm_id != BTM_PM_SET_ONLY_ID) &&
+         (btm_cb.pm_reg_db[pm_id].mask & BTM_PM_REG_SET))
+       || ((pm_id == BTM_PM_SET_ONLY_ID) && (btm_cb.pm_pend_link != MAX_L2CAP_LINKS)) )
+    {
+#if BTM_PM_DEBUG == TRUE
+    BTM_TRACE_DEBUG( "BTM_SetPowerMode: Saving cmd acl_ind %d temp_pm_id %d", acl_ind,temp_pm_id);
+#endif  // BTM_PM_DEBUG
+        /* Make sure mask is set to BTM_PM_REG_SET */
+        btm_cb.pm_reg_db[temp_pm_id].mask |= BTM_PM_REG_SET;
+        *(&p_cb->req_mode[temp_pm_id]) = *((tBTM_PM_PWR_MD *)p_mode);
+        p_cb->chg_ind = TRUE;
+    }
+
+#if BTM_PM_DEBUG == TRUE
+    BTM_TRACE_DEBUG( "btm_pm state:0x%x, pm_pend_link: %d", p_cb->state, btm_cb.pm_pend_link);
+#endif  // BTM_PM_DEBUG
+    /* if mode == hold or pending, return */
+    if( (p_cb->state == BTM_PM_STS_HOLD) ||
+        (p_cb->state ==  BTM_PM_STS_PENDING) ||
+        (btm_cb.pm_pend_link != MAX_L2CAP_LINKS) ) /* command pending */
+    {
+        if(acl_ind != btm_cb.pm_pend_link)
+        {
+            /* set the stored mask */
+            p_cb->state |= BTM_PM_STORED_MASK;
+            BTM_TRACE_DEBUG( "btm_pm state stored:%d",acl_ind);
+        }
+        return BTM_CMD_STORED;
+    }
+
+    return btm_pm_snd_md_req(pm_id, acl_ind, p_mode);
+}
+
+/*******************************************************************************
+**
+** Function         BTM_ReadPowerMode
+**
+** Description      This returns the current mode for a specific
+**                  ACL connection.
+**
+** Input Param      remote_bda - device address of desired ACL connection
+**
+** Output Param     p_mode - address where the current mode is copied into.
+**                          BTM_ACL_MODE_NORMAL
+**                          BTM_ACL_MODE_HOLD
+**                          BTM_ACL_MODE_SNIFF
+**                          BTM_ACL_MODE_PARK
+**                          (valid only if return code is BTM_SUCCESS)
+**
+** Returns          BTM_SUCCESS if successful,
+**                  BTM_UNKNOWN_ADDR if bd addr is not active or bad
+**
+*******************************************************************************/
+tBTM_STATUS BTM_ReadPowerMode (BD_ADDR remote_bda, tBTM_PM_MODE *p_mode)
+{
+    int acl_ind;
+
+    if( (acl_ind = btm_pm_find_acl_ind(remote_bda)) == MAX_L2CAP_LINKS)
+        return (BTM_UNKNOWN_ADDR);
+
+    *p_mode = btm_cb.pm_mode_db[acl_ind].state;
+    return BTM_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         btm_read_power_mode_state
+**
+** Description      This returns the current pm state for a specific
+**                  ACL connection.
+**
+** Input Param      remote_bda - device address of desired ACL connection
+**
+** Output Param     pmState - address where the current  pm state is copied into.
+**                          BTM_PM_ST_ACTIVE
+**                          BTM_PM_ST_HOLD
+**                          BTM_PM_ST_SNIFF
+**                          BTM_PM_ST_PARK
+**                          BTM_PM_ST_PENDING
+**                          (valid only if return code is BTM_SUCCESS)
+**
+** Returns          BTM_SUCCESS if successful,
+**                  BTM_UNKNOWN_ADDR if bd addr is not active or bad
+**
+*******************************************************************************/
+tBTM_STATUS btm_read_power_mode_state (BD_ADDR remote_bda, tBTM_PM_STATE *pmState)
+{
+    int acl_ind = btm_pm_find_acl_ind(remote_bda);
+
+    if( acl_ind == MAX_L2CAP_LINKS)
+        return (BTM_UNKNOWN_ADDR);
+
+    *pmState = btm_cb.pm_mode_db[acl_ind].state;
+    return BTM_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         BTM_SetSsrParams
+**
+** Description      This sends the given SSR parameters for the given ACL
+**                  connection if it is in ACTIVE mode.
+**
+** Input Param      remote_bda - device address of desired ACL connection
+**                  max_lat    - maximum latency (in 0.625ms)(0-0xFFFE)
+**                  min_rmt_to - minimum remote timeout
+**                  min_loc_to - minimum local timeout
+**
+**
+** Returns          BTM_SUCCESS if the HCI command is issued successful,
+**                  BTM_UNKNOWN_ADDR if bd addr is not active or bad
+**                  BTM_CMD_STORED if the command is stored
+**
+*******************************************************************************/
+tBTM_STATUS BTM_SetSsrParams (BD_ADDR remote_bda, UINT16 max_lat,
+                              UINT16 min_rmt_to, UINT16 min_loc_to)
+{
+#if (BTM_SSR_INCLUDED == TRUE)
+    int acl_ind;
+    tBTM_PM_MCB *p_cb;
+
+    if( (acl_ind = btm_pm_find_acl_ind(remote_bda)) == MAX_L2CAP_LINKS)
+        return (BTM_UNKNOWN_ADDR);
+
+    if(BTM_PM_STS_ACTIVE == btm_cb.pm_mode_db[acl_ind].state ||
+        BTM_PM_STS_SNIFF == btm_cb.pm_mode_db[acl_ind].state)
+    {
+        if (btsnd_hcic_sniff_sub_rate(btm_cb.acl_db[acl_ind].hci_handle, max_lat,
+                                      min_rmt_to, min_loc_to))
+            return BTM_SUCCESS;
+        else
+            return BTM_NO_RESOURCES;
+    }
+    p_cb = &btm_cb.pm_mode_db[acl_ind];
+    p_cb->max_lat       = max_lat;
+    p_cb->min_rmt_to    = min_rmt_to;
+    p_cb->min_loc_to    = min_loc_to;
+    return BTM_CMD_STORED;
+#else
+    return BTM_ILLEGAL_ACTION;
+#endif  // BTM_SSR_INCLUDED
+}
+
+/*******************************************************************************
+**
+** Function         btm_pm_reset
+**
+** Description      as a part of the BTM reset process.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_pm_reset(void)
+{
+    int xx;
+    tBTM_PM_STATUS_CBACK *cb = NULL;
+
+    /* clear the pending request for application */
+    if( (btm_cb.pm_pend_id != BTM_PM_SET_ONLY_ID) &&
+        (btm_cb.pm_reg_db[btm_cb.pm_pend_id].mask & BTM_PM_REG_NOTIF) )
+    {
+        cb = btm_cb.pm_reg_db[btm_cb.pm_pend_id].cback;
+    }
+
+    /* clear the register record */
+    for(xx=0; xx<BTM_MAX_PM_RECORDS; xx++)
+    {
+        btm_cb.pm_reg_db[xx].mask = BTM_PM_REC_NOT_USED;
+    }
+
+    if(cb != NULL && btm_cb.pm_pend_link < MAX_L2CAP_LINKS)
+        (*cb)(btm_cb.acl_db[btm_cb.pm_pend_link].remote_addr, BTM_PM_STS_ERROR, BTM_DEV_RESET, 0);
+
+    /* no command pending */
+    btm_cb.pm_pend_link = MAX_L2CAP_LINKS;
+}
+
+/*******************************************************************************
+**
+** Function         btm_pm_sm_alloc
+**
+** Description      This function initializes the control block of an ACL link.
+**                  It is called when an ACL connection is created.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_pm_sm_alloc(UINT8 ind)
+{
+    tBTM_PM_MCB *p_db = &btm_cb.pm_mode_db[ind];   /* per ACL link */
+    memset (p_db, 0, sizeof(tBTM_PM_MCB));
+    p_db->state = BTM_PM_ST_ACTIVE;
+#if BTM_PM_DEBUG == TRUE
+    BTM_TRACE_DEBUG( "btm_pm_sm_alloc ind:%d st:%d", ind, p_db->state);
+#endif  // BTM_PM_DEBUG
+}
+
+/*******************************************************************************
+**
+** Function         btm_pm_find_acl_ind
+**
+** Description      This function initializes the control block of an ACL link.
+**                  It is called when an ACL connection is created.
+**
+** Returns          void
+**
+*******************************************************************************/
+static int btm_pm_find_acl_ind(BD_ADDR remote_bda)
+{
+    tACL_CONN   *p = &btm_cb.acl_db[0];
+    UINT8 xx;
+
+    for (xx = 0; xx < MAX_L2CAP_LINKS; xx++, p++)
+    {
+        if ((p->in_use) && (!memcmp (p->remote_addr, remote_bda, BD_ADDR_LEN))
+#if (BLE_INCLUDED == TRUE)
+            && p->transport == BT_TRANSPORT_BR_EDR
+#endif  // BLE_INCLUDED
+            )
+        {
+#if BTM_PM_DEBUG == TRUE
+            BTM_TRACE_DEBUG( "btm_pm_find_acl_ind ind:%d, st:%d", xx, btm_cb.pm_mode_db[xx].state);
+#endif  // BTM_PM_DEBUG
+            break;
+        }
+    }
+    return xx;
+}
+
+/*******************************************************************************
+**
+** Function     btm_pm_compare_modes
+** Description  get the "more active" mode of the 2
+** Returns      void
+**
+*******************************************************************************/
+static tBTM_PM_PWR_MD * btm_pm_compare_modes(tBTM_PM_PWR_MD *p_md1, tBTM_PM_PWR_MD *p_md2, tBTM_PM_PWR_MD *p_res)
+{
+    UINT8 res;
+
+    if(p_md1 == NULL)
+    {
+        *p_res = *p_md2;
+        p_res->mode &= ~BTM_PM_MD_FORCE;
+
+        return p_md2;
+    }
+
+    if(p_md2->mode == BTM_PM_MD_ACTIVE || p_md1->mode == BTM_PM_MD_ACTIVE)
+    {
+        return NULL;
+    }
+
+    /* check if force bit is involved */
+    if(p_md1->mode & BTM_PM_MD_FORCE)
+    {
+        *p_res = *p_md1;
+        p_res->mode &= ~BTM_PM_MD_FORCE;
+        return p_res;
+    }
+
+    if(p_md2->mode & BTM_PM_MD_FORCE)
+    {
+        *p_res = *p_md2;
+        p_res->mode &= ~BTM_PM_MD_FORCE;
+        return p_res;
+    }
+
+    res = (p_md1->mode - 1) * BTM_PM_NUM_SET_MODES + (p_md2->mode - 1);
+    res = btm_pm_md_comp_matrix[res];
+    switch(res)
+    {
+    case BTM_PM_GET_MD1:
+        *p_res = *p_md1;
+        return p_md1;
+
+    case BTM_PM_GET_MD2:
+        *p_res = *p_md2;
+        return p_md2;
+
+    case BTM_PM_GET_COMP:
+        p_res->mode = p_md1->mode;
+        /* min of the two */
+        p_res->max  = (p_md1->max < p_md2->max)? (p_md1->max) : (p_md2->max);
+        /* max of the two */
+        p_res->min  = (p_md1->min > p_md2->min)? (p_md1->min) : (p_md2->min);
+
+        /* the intersection is NULL */
+        if( p_res->max < p_res->min)
+            return NULL;
+
+        if(p_res->mode == BTM_PM_MD_SNIFF)
+        {
+            /* max of the two */
+            p_res->attempt  = (p_md1->attempt > p_md2->attempt)? (p_md1->attempt) : (p_md2->attempt);
+            p_res->timeout  = (p_md1->timeout > p_md2->timeout)? (p_md1->timeout) : (p_md2->timeout);
+        }
+        return p_res;
+    }
+    return NULL;
+}
+
+/*******************************************************************************
+**
+** Function     btm_pm_get_set_mode
+** Description  get the resulting mode from the registered parties, then compare it
+**              with the requested mode, if the command is from an unregistered party.
+** Returns      void
+**
+*******************************************************************************/
+static tBTM_PM_MODE btm_pm_get_set_mode(UINT8 pm_id, tBTM_PM_MCB *p_cb, tBTM_PM_PWR_MD *p_mode, tBTM_PM_PWR_MD *p_res)
+{
+    int   xx, loop_max;
+    tBTM_PM_PWR_MD *p_md = NULL;
+
+    if(p_mode != NULL && p_mode->mode & BTM_PM_MD_FORCE)
+    {
+        *p_res = *p_mode;
+        p_res->mode &= ~BTM_PM_MD_FORCE;
+        return p_res->mode;
+    }
+
+    if(!p_mode)
+        loop_max = BTM_MAX_PM_RECORDS+1;
+    else
+        loop_max = BTM_MAX_PM_RECORDS;
+
+    for( xx=0; xx<loop_max; xx++)
+    {
+        /* g through all the registered "set" parties */
+        if(btm_cb.pm_reg_db[xx].mask & BTM_PM_REG_SET)
+        {
+            if(p_cb->req_mode[xx].mode == BTM_PM_MD_ACTIVE)
+            {
+                /* if at least one registered (SET) party says ACTIVE, stay active */
+                return BTM_PM_MD_ACTIVE;
+            }
+            else
+            {
+                /* if registered parties give conflicting information, stay active */
+                if( (btm_pm_compare_modes(p_md, &p_cb->req_mode[xx], p_res)) == NULL)
+                    return BTM_PM_MD_ACTIVE;
+                p_md = p_res;
+            }
+        }
+    }
+
+    /* if the resulting mode is NULL(nobody registers SET), use the requested mode */
+    if(p_md == NULL)
+    {
+        if(p_mode)
+            *p_res = *((tBTM_PM_PWR_MD *)p_mode);
+        else /* p_mode is NULL when btm_pm_snd_md_req is called from btm_pm_proc_mode_change */
+            return BTM_PM_MD_ACTIVE;
+    }
+    else
+    {
+        /* if the command is from unregistered party,
+           compare the resulting mode from registered party*/
+        if( (pm_id == BTM_PM_SET_ONLY_ID) &&
+            ((btm_pm_compare_modes(p_mode, p_md, p_res)) == NULL) )
+            return BTM_PM_MD_ACTIVE;
+    }
+
+    return p_res->mode;
+}
+
+/*******************************************************************************
+**
+** Function     btm_pm_snd_md_req
+** Description  get the resulting mode and send the resuest to host controller
+** Returns      tBTM_STATUS
+**, BOOLEAN *p_chg_ind
+*******************************************************************************/
+static tBTM_STATUS btm_pm_snd_md_req(UINT8 pm_id, int link_ind, tBTM_PM_PWR_MD *p_mode)
+{
+    tBTM_PM_PWR_MD  md_res;
+    tBTM_PM_MODE    mode;
+    tBTM_PM_MCB *p_cb = &btm_cb.pm_mode_db[link_ind];
+    BOOLEAN      chg_ind = FALSE;
+
+    mode = btm_pm_get_set_mode(pm_id, p_cb, p_mode, &md_res);
+    md_res.mode = mode;
+
+#if BTM_PM_DEBUG == TRUE
+    BTM_TRACE_DEBUG( "btm_pm_snd_md_req link_ind:%d, mode: %d",
+        link_ind, mode);
+#endif  // BTM_PM_DEBUG
+
+    if( p_cb->state == mode)
+    {
+        /* already in the resulting mode */
+        if( (mode == BTM_PM_MD_ACTIVE) ||
+            ((md_res.max >= p_cb->interval) && (md_res.min <= p_cb->interval)) )
+            return BTM_CMD_STORED;
+        /* Otherwise, needs to wake, then sleep */
+        chg_ind = TRUE;
+    }
+    p_cb->chg_ind = chg_ind;
+
+     /* cannot go directly from current mode to resulting mode. */
+    if( mode != BTM_PM_MD_ACTIVE && p_cb->state != BTM_PM_MD_ACTIVE)
+        p_cb->chg_ind = TRUE; /* needs to wake, then sleep */
+
+    if(p_cb->chg_ind == TRUE) /* needs to wake first */
+        md_res.mode = BTM_PM_MD_ACTIVE;
+#if (BTM_SSR_INCLUDED == TRUE)
+    else if(BTM_PM_MD_SNIFF == md_res.mode && p_cb->max_lat)
+    {
+        btsnd_hcic_sniff_sub_rate(btm_cb.acl_db[link_ind].hci_handle, p_cb->max_lat,
+                                  p_cb->min_rmt_to, p_cb->min_loc_to);
+        p_cb->max_lat = 0;
+    }
+#endif  // BTM_SSR_INCLUDED
+    /* Default is failure */
+    btm_cb.pm_pend_link = MAX_L2CAP_LINKS;
+
+    /* send the appropriate HCI command */
+    btm_cb.pm_pend_id   = pm_id;
+
+#if BTM_PM_DEBUG == TRUE
+    BTM_TRACE_DEBUG("btm_pm_snd_md_req state:0x%x, link_ind: %d", p_cb->state, link_ind);
+#endif  // BTM_PM_DEBUG
+
+    BTM_TRACE_DEBUG("%s switching from %s to %s.", __func__,
+                    mode_to_string(p_cb->state), mode_to_string(md_res.mode));
+    switch(md_res.mode)
+    {
+    case BTM_PM_MD_ACTIVE:
+        switch(p_cb->state)
+        {
+        case BTM_PM_MD_SNIFF:
+            if (btsnd_hcic_exit_sniff_mode(btm_cb.acl_db[link_ind].hci_handle))
+            {
+                btm_cb.pm_pend_link = link_ind;
+            }
+            break;
+        case BTM_PM_MD_PARK:
+            if (btsnd_hcic_exit_park_mode(btm_cb.acl_db[link_ind].hci_handle))
+            {
+                btm_cb.pm_pend_link = link_ind;
+            }
+            break;
+        default:
+            /* Failure btm_cb.pm_pend_link = MAX_L2CAP_LINKS */
+            break;
+        }
+        break;
+
+    case BTM_PM_MD_HOLD:
+        if (btsnd_hcic_hold_mode (btm_cb.acl_db[link_ind].hci_handle,
+                                  md_res.max, md_res.min))
+        {
+            btm_cb.pm_pend_link = link_ind;
+        }
+        break;
+
+    case BTM_PM_MD_SNIFF:
+        if (btsnd_hcic_sniff_mode (btm_cb.acl_db[link_ind].hci_handle,
+                                   md_res.max, md_res.min, md_res.attempt,
+                                   md_res.timeout))
+        {
+            btm_cb.pm_pend_link = link_ind;
+        }
+        break;
+
+    case BTM_PM_MD_PARK:
+        if (btsnd_hcic_park_mode (btm_cb.acl_db[link_ind].hci_handle,
+                                  md_res.max, md_res.min))
+        {
+            btm_cb.pm_pend_link = link_ind;
+        }
+        break;
+    default:
+        /* Failure btm_cb.pm_pend_link = MAX_L2CAP_LINKS */
+        break;
+    }
+
+    if(btm_cb.pm_pend_link == MAX_L2CAP_LINKS)
+    {
+        /* the command was not sent */
+#if BTM_PM_DEBUG == TRUE
+        BTM_TRACE_DEBUG( "pm_pend_link: %d",btm_cb.pm_pend_link);
+#endif  // BTM_PM_DEBUG
+        return (BTM_NO_RESOURCES);
+    }
+
+    return BTM_CMD_STARTED;
+}
+
+/*******************************************************************************
+**
+** Function         btm_pm_check_stored
+**
+** Description      This function is called when an HCI command status event occurs
+**                  to check if there's any PM command issued while waiting for
+**                  HCI command status.
+**
+** Returns          none.
+**
+*******************************************************************************/
+static void btm_pm_check_stored(void)
+{
+    int     xx;
+    for(xx=0; xx<MAX_L2CAP_LINKS; xx++)
+    {
+        if(btm_cb.pm_mode_db[xx].state & BTM_PM_STORED_MASK)
+        {
+            btm_cb.pm_mode_db[xx].state &= ~BTM_PM_STORED_MASK;
+            BTM_TRACE_DEBUG( "btm_pm_check_stored :%d", xx);
+            btm_pm_snd_md_req(BTM_PM_SET_ONLY_ID, xx, NULL);
+            break;
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btm_pm_proc_cmd_status
+**
+** Description      This function is called when an HCI command status event occurs
+**                  for power manager related commands.
+**
+** Input Parms      status - status of the event (HCI_SUCCESS if no errors)
+**
+** Returns          none.
+**
+*******************************************************************************/
+void btm_pm_proc_cmd_status(UINT8 status)
+{
+    tBTM_PM_MCB     *p_cb;
+    tBTM_PM_STATUS  pm_status;
+
+    if(btm_cb.pm_pend_link >= MAX_L2CAP_LINKS)
+        return;
+
+    p_cb = &btm_cb.pm_mode_db[btm_cb.pm_pend_link];
+
+    if(status == HCI_SUCCESS)
+    {
+        p_cb->state = BTM_PM_ST_PENDING;
+        pm_status = BTM_PM_STS_PENDING;
+#if BTM_PM_DEBUG == TRUE
+        BTM_TRACE_DEBUG( "btm_pm_proc_cmd_status new state:0x%x", p_cb->state);
+#endif // BTM_PM_DEBUG
+    }
+    else /* the command was not successfull. Stay in the same state */
+    {
+        pm_status = BTM_PM_STS_ERROR;
+    }
+
+    /* notify the caller is appropriate */
+    if( (btm_cb.pm_pend_id != BTM_PM_SET_ONLY_ID) &&
+        (btm_cb.pm_reg_db[btm_cb.pm_pend_id].mask & BTM_PM_REG_NOTIF) )
+    {
+        (*btm_cb.pm_reg_db[btm_cb.pm_pend_id].cback)(btm_cb.acl_db[btm_cb.pm_pend_link].remote_addr, pm_status, 0, status);
+    }
+
+    /* no pending cmd now */
+#if BTM_PM_DEBUG == TRUE
+    BTM_TRACE_DEBUG( "btm_pm_proc_cmd_status state:0x%x, pm_pend_link: %d(new: %d)",
+        p_cb->state, btm_cb.pm_pend_link, MAX_L2CAP_LINKS);
+#endif  // BTM_PM_DEBUG
+    btm_cb.pm_pend_link = MAX_L2CAP_LINKS;
+
+    btm_pm_check_stored();
+}
+
+/*******************************************************************************
+**
+** Function         btm_process_mode_change
+**
+** Description      This function is called when an HCI mode change event occurs.
+**
+** Input Parms      hci_status - status of the event (HCI_SUCCESS if no errors)
+**                  hci_handle - connection handle associated with the change
+**                  mode - HCI_MODE_ACTIVE, HCI_MODE_HOLD, HCI_MODE_SNIFF, or HCI_MODE_PARK
+**                  interval - number of baseband slots (meaning depends on mode)
+**
+** Returns          none.
+**
+*******************************************************************************/
+void btm_pm_proc_mode_change (UINT8 hci_status, UINT16 hci_handle, UINT8 mode, UINT16 interval)
+{
+    tACL_CONN   *p;
+    tBTM_PM_MCB *p_cb = NULL;
+    int xx, yy, zz;
+    tBTM_PM_STATE  old_state;
+    tL2C_LCB        *p_lcb;
+
+    /* get the index to acl_db */
+    if ((xx = btm_handle_to_acl_index(hci_handle)) >= MAX_L2CAP_LINKS)
+        return;
+
+    p = &btm_cb.acl_db[xx];
+
+    /* update control block */
+    p_cb = &(btm_cb.pm_mode_db[xx]);
+    old_state       = p_cb->state;
+    p_cb->state     = mode;
+    p_cb->interval  = interval;
+
+    BTM_TRACE_DEBUG("%s switched from %s to %s.", __func__,
+                    mode_to_string(old_state), mode_to_string(p_cb->state));
+
+    if ((p_lcb = l2cu_find_lcb_by_bd_addr(p->remote_addr, BT_TRANSPORT_BR_EDR)) != NULL)
+    {
+        if ((p_cb->state == BTM_PM_ST_ACTIVE) || (p_cb->state == BTM_PM_ST_SNIFF))
+        {
+            /* There might be any pending packets due to SNIFF or PENDING state */
+            /* Trigger L2C to start transmission of the pending packets. */
+            BTM_TRACE_DEBUG("btm mode change to active; check l2c_link for outgoing packets");
+            l2c_link_check_send_pkts(p_lcb, NULL, NULL);
+        }
+    }
+
+    /* notify registered parties */
+    for(yy=0; yy<=BTM_MAX_PM_RECORDS; yy++)
+    {
+        /* set req_mode  HOLD mode->ACTIVE */
+        if( (mode == BTM_PM_MD_ACTIVE) && (p_cb->req_mode[yy].mode == BTM_PM_MD_HOLD) )
+            p_cb->req_mode[yy].mode = BTM_PM_MD_ACTIVE;
+    }
+
+    /* new request has been made. - post a message to BTU task */
+    if(old_state & BTM_PM_STORED_MASK)
+    {
+#if BTM_PM_DEBUG == TRUE
+        BTM_TRACE_DEBUG( "btm_pm_proc_mode_change: Sending stored req:%d", xx);
+#endif  // BTM_PM_DEBUG
+        btm_pm_snd_md_req(BTM_PM_SET_ONLY_ID, xx, NULL);
+    }
+    else
+    {
+        for(zz=0; zz<MAX_L2CAP_LINKS; zz++)
+        {
+            if(btm_cb.pm_mode_db[zz].chg_ind == TRUE)
+            {
+#if BTM_PM_DEBUG == TRUE
+                BTM_TRACE_DEBUG( "btm_pm_proc_mode_change: Sending PM req :%d", zz);
+#endif   // BTM_PM_DEBUG
+                btm_pm_snd_md_req(BTM_PM_SET_ONLY_ID, zz, NULL);
+                break;
+            }
+        }
+    }
+
+    /* notify registered parties */
+    for(yy=0; yy<BTM_MAX_PM_RECORDS; yy++)
+    {
+        if(btm_cb.pm_reg_db[yy].mask & BTM_PM_REG_NOTIF)
+        {
+            (*btm_cb.pm_reg_db[yy].cback)( p->remote_addr, mode, interval, hci_status);
+        }
+    }
+#if BTM_SCO_INCLUDED == TRUE
+    /*check if sco disconnect  is waiting for the mode change */
+    btm_sco_disc_chk_pend_for_modechange(hci_handle);
+#endif
+
+    /* If mode change was because of an active role switch or change link key */
+    btm_cont_rswitch(p, btm_find_dev(p->remote_addr), hci_status);
+}
+
+/*******************************************************************************
+**
+** Function         btm_pm_proc_ssr_evt
+**
+** Description      This function is called when an HCI sniff subrating event occurs.
+**
+** Returns          none.
+**
+*******************************************************************************/
+#if (BTM_SSR_INCLUDED == TRUE)
+void btm_pm_proc_ssr_evt (UINT8 *p, UINT16 evt_len)
+{
+    UINT8       status;
+    UINT16      handle;
+    UINT16      max_rx_lat;
+    int         xx, yy;
+    tBTM_PM_MCB *p_cb;
+    tACL_CONN   *p_acl=NULL;
+    UINT16      use_ssr = TRUE;
+    UNUSED(evt_len);
+
+    STREAM_TO_UINT8 (status, p);
+
+    STREAM_TO_UINT16 (handle, p);
+    /* get the index to acl_db */
+    if ((xx = btm_handle_to_acl_index(handle)) >= MAX_L2CAP_LINKS)
+        return;
+
+    p += 2;
+    STREAM_TO_UINT16 (max_rx_lat, p);
+    p_cb = &(btm_cb.pm_mode_db[xx]);
+
+    p_acl = &btm_cb.acl_db[xx];
+    if(p_cb->interval == max_rx_lat)
+    {
+        /* using legacy sniff */
+        use_ssr = FALSE;
+    }
+
+    /* notify registered parties */
+    for(yy=0; yy<BTM_MAX_PM_RECORDS; yy++)
+    {
+        if(btm_cb.pm_reg_db[yy].mask & BTM_PM_REG_NOTIF)
+        {
+            if( p_acl)
+            {
+                (*btm_cb.pm_reg_db[yy].cback)( p_acl->remote_addr, BTM_PM_STS_SSR, use_ssr, status);
+            }
+        }
+    }
+}
+#endif  // BTM_SSR_INCLUDED
+
+/*******************************************************************************
+**
+** Function         btm_pm_device_in_active_or_sniff_mode
+**
+** Description      This function is called to check if in active or sniff mode
+**
+** Returns          TRUE, if in active or sniff mode
+**
+*******************************************************************************/
+BOOLEAN btm_pm_device_in_active_or_sniff_mode(void)
+{
+    /* The active state is the highest state-includes connected device and sniff mode*/
+
+    /* Covers active and sniff modes */
+    if (BTM_GetNumAclLinks() > 0)
+    {
+        BTM_TRACE_DEBUG("%s - ACL links: %d", __func__, BTM_GetNumAclLinks());
+        return TRUE;
+    }
+
+#if ((defined BLE_INCLUDED) && (BLE_INCLUDED == TRUE))
+    /* Check BLE states */
+    if (btm_ble_get_conn_st() != BLE_CONN_IDLE)
+    {
+        BTM_TRACE_DEBUG("%s - BLE state: %x", __func__, btm_ble_get_conn_st());
+        return TRUE;
+    }
+#endif
+
+    return FALSE;
+}
+
+/*******************************************************************************
+**
+** Function         btm_pm_device_in_scan_state
+**
+** Description      This function is called to check if in paging, inquiry or connecting mode
+**
+** Returns          TRUE, if in paging, inquiry or connecting mode
+**
+*******************************************************************************/
+BOOLEAN btm_pm_device_in_scan_state(void)
+{
+    /* Scan state-paging, inquiry, and trying to connect */
+
+    /* Check for paging */
+    if (btm_cb.is_paging || (!fixed_queue_is_empty(btm_cb.page_queue)) ||
+       BTM_BL_PAGING_STARTED == btm_cb.busy_level)
+    {
+       BTM_TRACE_DEBUG("btm_pm_device_in_scan_state- paging");
+       return TRUE;
+    }
+
+    /* Check for inquiry */
+    if ((btm_cb.btm_inq_vars.inq_active & (BTM_BR_INQ_ACTIVE_MASK | BTM_BLE_INQ_ACTIVE_MASK)) != 0)
+    {
+        BTM_TRACE_DEBUG("btm_pm_device_in_scan_state- Inq active");
+        return TRUE;
+    }
+
+    return FALSE;
+}
+
+/*******************************************************************************
+**
+** Function         BTM_PM_ReadControllerState
+**
+** Description      This function is called to obtain the controller state
+**
+** Returns          Controller State-BTM_CONTRL_ACTIVE, BTM_CONTRL_SCAN, and BTM_CONTRL_IDLE
+**
+*******************************************************************************/
+tBTM_CONTRL_STATE BTM_PM_ReadControllerState(void)
+{
+    if (TRUE == btm_pm_device_in_active_or_sniff_mode())
+       return BTM_CONTRL_ACTIVE;
+    else
+    if (TRUE == btm_pm_device_in_scan_state())
+       return BTM_CONTRL_SCAN;
+    else
+       return BTM_CONTRL_IDLE;
+}
+
+static const char *mode_to_string(tBTM_PM_MODE mode) {
+  switch (mode) {
+    case BTM_PM_MD_ACTIVE: return "ACTIVE";
+    case BTM_PM_MD_SNIFF:  return "SNIFF";
+    case BTM_PM_MD_PARK:   return "PARK";
+    case BTM_PM_MD_HOLD:   return "HOLD";
+    default:               return "UNKNOWN";
+  }
+}
diff --git a/rtkbt/code/bt/stack/btm/btm_sco.c b/rtkbt/code/bt/stack/btm/btm_sco.c
new file mode 100755
index 0000000..8c374f9
--- /dev/null
+++ b/rtkbt/code/bt/stack/btm/btm_sco.c
@@ -0,0 +1,1816 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2000-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains functions that handle SCO connections. This includes
+ *  operations such as connect, disconnect, change supported packet types.
+ *
+ ******************************************************************************/
+
+#include <string.h>
+#include "bt_types.h"
+#include "bt_target.h"
+#include "bt_common.h"
+#include "bt_types.h"
+#include "hcimsgs.h"
+#include "btu.h"
+#include "btm_api.h"
+#include "btm_int.h"
+#include "hcidefs.h"
+#include "bt_utils.h"
+
+#if BTM_SCO_INCLUDED == TRUE
+
+/********************************************************************************/
+/*                 L O C A L    D A T A    D E F I N I T I O N S                */
+/********************************************************************************/
+
+#define SCO_ST_UNUSED           0
+#define SCO_ST_LISTENING        1
+#define SCO_ST_W4_CONN_RSP      2
+#define SCO_ST_CONNECTING       3
+#define SCO_ST_CONNECTED        4
+#define SCO_ST_DISCONNECTING    5
+#define SCO_ST_PEND_UNPARK      6
+#define SCO_ST_PEND_ROLECHANGE  7
+#define SCO_ST_PEND_MODECHANGE  8
+
+/********************************************************************************/
+/*              L O C A L    F U N C T I O N     P R O T O T Y P E S            */
+/********************************************************************************/
+
+static const tBTM_ESCO_PARAMS btm_esco_defaults =
+{
+    BTM_64KBITS_RATE,               /* TX Bandwidth (64 kbits/sec)              */
+    BTM_64KBITS_RATE,               /* RX Bandwidth (64 kbits/sec)              */
+    0x000a,                         /* 10 ms (HS/HF can use EV3, 2-EV3, 3-EV3)  */
+    0x0060,                         /* Inp Linear, Air CVSD, 2s Comp, 16bit     */
+    (BTM_SCO_PKT_TYPES_MASK_HV1 +   /* Packet Types                             */
+     BTM_SCO_PKT_TYPES_MASK_HV2 +
+     BTM_SCO_PKT_TYPES_MASK_HV3 +
+     BTM_SCO_PKT_TYPES_MASK_EV3 +
+     BTM_SCO_PKT_TYPES_MASK_EV4 +
+     BTM_SCO_PKT_TYPES_MASK_EV5),
+     BTM_ESCO_RETRANS_POWER        /* Retransmission Effort (Power)   */
+};
+
+/*******************************************************************************
+**
+** Function         btm_sco_flush_sco_data
+**
+** Description      This function is called to flush the SCO data for this channel.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_sco_flush_sco_data(UINT16 sco_inx)
+{
+#if BTM_SCO_HCI_INCLUDED == TRUE
+#if (BTM_MAX_SCO_LINKS>0)
+    tSCO_CONN   *p ;
+    BT_HDR      *p_buf;
+
+    if (sco_inx < BTM_MAX_SCO_LINKS)
+    {
+        p = &btm_cb.sco_cb.sco_db[sco_inx];
+        while ((p_buf = (BT_HDR *)fixed_queue_try_dequeue(p->xmit_data_q)) != NULL)
+            osi_free(p_buf);
+        }
+    }
+#else
+    UNUSED(sco_inx);
+#endif
+#else
+    UNUSED(sco_inx);
+#endif
+}
+/*******************************************************************************
+**
+** Function         btm_sco_init
+**
+** Description      This function is called at BTM startup to initialize
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_sco_init (void)
+{
+#if 0  /* cleared in btm_init; put back in if called from anywhere else! */
+    memset (&btm_cb.sco_cb, 0, sizeof(tSCO_CB));
+#endif
+
+#if BTM_SCO_HCI_INCLUDED == TRUE
+    for (int i = 0; i < BTM_MAX_SCO_LINKS; i++)
+        btm_cb.sco_cb.sco_db[i].xmit_data_q = fixed_queue_new(SIZE_MAX);
+#endif
+
+    /* Initialize nonzero defaults */
+    btm_cb.sco_cb.sco_disc_reason  = BTM_INVALID_SCO_DISC_REASON;
+
+    btm_cb.sco_cb.def_esco_parms = btm_esco_defaults; /* Initialize with defaults */
+    btm_cb.sco_cb.desired_sco_mode = BTM_DEFAULT_SCO_MODE;
+}
+
+/*******************************************************************************
+**
+** Function         btm_esco_conn_rsp
+**
+** Description      This function is called upon receipt of an (e)SCO connection
+**                  request event (BTM_ESCO_CONN_REQ_EVT) to accept or reject
+**                  the request. Parameters used to negotiate eSCO links.
+**                  If p_parms is NULL, then default values are used.
+**                  If the link type of the incoming request is SCO, then only
+**                  the tx_bw, max_latency, content format, and packet_types are
+**                  valid.  The hci_status parameter should be
+**                  ([0x0] to accept, [0x0d..0x0f] to reject)
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btm_esco_conn_rsp (UINT16 sco_inx, UINT8 hci_status, BD_ADDR bda,
+                               tBTM_ESCO_PARAMS *p_parms)
+{
+#if (BTM_MAX_SCO_LINKS>0)
+    tSCO_CONN        *p_sco = NULL;
+    tBTM_ESCO_PARAMS *p_setup;
+    UINT16            temp_pkt_types;
+
+    if (sco_inx < BTM_MAX_SCO_LINKS)
+        p_sco = &btm_cb.sco_cb.sco_db[sco_inx];
+
+    /* Reject the connect request if refused by caller or wrong state */
+    if (hci_status != HCI_SUCCESS || p_sco == NULL)
+    {
+        if (p_sco)
+        {
+            p_sco->state = (p_sco->state == SCO_ST_W4_CONN_RSP) ? SCO_ST_LISTENING
+                                                                : SCO_ST_UNUSED;
+        }
+
+        if (!btm_cb.sco_cb.esco_supported)
+        {
+            if (!btsnd_hcic_reject_conn (bda, hci_status))
+            {
+                BTM_TRACE_ERROR("Could not reject (e)SCO conn: No Buffer!!!");
+            }
+        }
+        else
+        {
+            if (!btsnd_hcic_reject_esco_conn (bda, hci_status))
+            {
+                BTM_TRACE_ERROR("Could not reject (e)SCO conn: No Buffer!!!");
+            }
+        }
+    }
+    else    /* Connection is being accepted */
+    {
+        p_sco->state = SCO_ST_CONNECTING;
+        p_setup = &p_sco->esco.setup;
+        /* If parameters not specified use the default */
+        if (p_parms)
+            *p_setup = *p_parms;
+        else /* Use the last setup passed thru BTM_SetEscoMode (or defaults) */
+        {
+            *p_setup = btm_cb.sco_cb.def_esco_parms;
+        }
+
+        temp_pkt_types = (p_setup->packet_types &
+                          BTM_SCO_SUPPORTED_PKTS_MASK &
+                          btm_cb.btm_sco_pkt_types_supported);
+
+        /* Make sure at least one eSCO packet type is sent, else might confuse peer */
+        /* Taking this out to confirm with BQB tests
+        ** Real application would like to include this though, as many devices
+        ** do not retry with SCO only if an eSCO connection fails.
+        if (!(temp_pkt_types & BTM_ESCO_LINK_ONLY_MASK))
+        {
+            temp_pkt_types |= BTM_SCO_PKT_TYPES_MASK_EV3;
+        }
+        */
+        /* If SCO request, remove eSCO packet types (conformance) */
+        if (p_sco->esco.data.link_type == BTM_LINK_TYPE_SCO)
+        {
+            temp_pkt_types &= BTM_SCO_LINK_ONLY_MASK;
+            temp_pkt_types |= BTM_SCO_EXCEPTION_PKTS_MASK;
+        }
+        else
+        {
+            /* OR in any exception packet types */
+            temp_pkt_types |= ((p_setup->packet_types & BTM_SCO_EXCEPTION_PKTS_MASK) |
+                (btm_cb.btm_sco_pkt_types_supported & BTM_SCO_EXCEPTION_PKTS_MASK));
+        }
+
+        if (btsnd_hcic_accept_esco_conn (bda, p_setup->tx_bw, p_setup->rx_bw,
+                                     p_setup->max_latency, p_setup->voice_contfmt,
+                                         p_setup->retrans_effort, temp_pkt_types))
+        {
+            p_setup->packet_types = temp_pkt_types;
+        }
+        else
+        {
+            BTM_TRACE_ERROR("Could not accept SCO conn: No Buffer!!!");
+        }
+    }
+#endif
+}
+
+
+#if BTM_SCO_HCI_INCLUDED == TRUE
+/*******************************************************************************
+**
+** Function         btm_sco_check_send_pkts
+**
+** Description      This function is called to check if it can send packets
+**                  to the Host Controller.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_sco_check_send_pkts (UINT16 sco_inx)
+{
+    tSCO_CB  *p_cb = &btm_cb.sco_cb;
+    tSCO_CONN   *p_ccb = &p_cb->sco_db[sco_inx];
+
+    /* If there is data to send, send it now */
+    BT_HDR  *p_buf;
+    while ((p_buf = (BT_HDR *)fixed_queue_try_dequeue(p_ccb->xmit_data_q)) != NULL)
+    {
+#if BTM_SCO_HCI_DEBUG
+        BTM_TRACE_DEBUG("btm: [%d] buf in xmit_data_q",
+                        fixed_queue_length(p_ccb->xmit_data_q) + 1);
+#endif
+
+        HCI_SCO_DATA_TO_LOWER(p_buf);
+    }
+}
+#endif /* BTM_SCO_HCI_INCLUDED == TRUE */
+
+/*******************************************************************************
+**
+** Function         btm_route_sco_data
+**
+** Description      Route received SCO data.
+**
+** Returns          void
+**
+*******************************************************************************/
+void  btm_route_sco_data(BT_HDR *p_msg)
+{
+#if BTM_SCO_HCI_INCLUDED == TRUE
+    UINT16      sco_inx, handle;
+    UINT8       *p = (UINT8 *)(p_msg + 1) + p_msg->offset;
+    UINT8       pkt_size = 0;
+    UINT8       pkt_status = 0;
+
+    /* Extract Packet_Status_Flag and handle */
+    STREAM_TO_UINT16 (handle, p);
+    pkt_status = HCID_GET_EVENT(handle);
+    handle   = HCID_GET_HANDLE (handle);
+
+    STREAM_TO_UINT8 (pkt_size, p);
+
+    if ((sco_inx = btm_find_scb_by_handle(handle)) != BTM_MAX_SCO_LINKS )
+    {
+        /* send data callback */
+        if (!btm_cb.sco_cb.p_data_cb )
+            /* if no data callback registered,  just free the buffer  */
+            osi_free(p_msg);
+        else
+        {
+            (*btm_cb.sco_cb.p_data_cb)(sco_inx, p_msg, (tBTM_SCO_DATA_FLAG) pkt_status);
+        }
+    }
+    else /* no mapping handle SCO connection is active, free the buffer */
+    {
+        osi_free(p_msg);
+    }
+#else
+    osi_free(p_msg);
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         BTM_WriteScoData
+**
+** Description      This function write SCO data to a specified instance. The data
+**                  to be written p_buf needs to carry an offset of
+**                  HCI_SCO_PREAMBLE_SIZE bytes, and the data length can not
+**                  exceed BTM_SCO_DATA_SIZE_MAX bytes, whose default value is set
+**                  to 60 and is configurable. Data longer than the maximum bytes
+**                  will be truncated.
+**
+** Returns          BTM_SUCCESS: data write is successful
+**                  BTM_ILLEGAL_VALUE: SCO data contains illegal offset value.
+**                  BTM_SCO_BAD_LENGTH: SCO data length exceeds the max SCO packet
+**                                      size.
+**                  BTM_NO_RESOURCES: no resources.
+**                  BTM_UNKNOWN_ADDR: unknown SCO connection handle, or SCO is not
+**                                    routed via HCI.
+**
+**
+*******************************************************************************/
+tBTM_STATUS BTM_WriteScoData (UINT16 sco_inx, BT_HDR *p_buf)
+{
+#if (BTM_SCO_HCI_INCLUDED == TRUE) && (BTM_MAX_SCO_LINKS>0)
+    tSCO_CONN   *p_ccb = &btm_cb.sco_cb.sco_db[sco_inx];
+    UINT8   *p;
+    tBTM_STATUS     status = BTM_SUCCESS;
+
+    if (sco_inx < BTM_MAX_SCO_LINKS && btm_cb.sco_cb.p_data_cb &&
+        p_ccb->state == SCO_ST_CONNECTED)
+    {
+        /* Ensure we have enough space in the buffer for the SCO and HCI headers */
+        if (p_buf->offset < HCI_SCO_PREAMBLE_SIZE)
+        {
+            BTM_TRACE_ERROR ("BTM SCO - cannot send buffer, offset: %d", p_buf->offset);
+            osi_free(p_buf);
+            status = BTM_ILLEGAL_VALUE;
+        }
+        else    /* write HCI header */
+        {
+            /* Step back 3 bytes to add the headers */
+            p_buf->offset -= HCI_SCO_PREAMBLE_SIZE;
+            /* Set the pointer to the beginning of the data */
+            p = (UINT8 *)(p_buf + 1) + p_buf->offset;
+            /* add HCI handle */
+            UINT16_TO_STREAM (p, p_ccb->hci_handle);
+            /* only sent the first BTM_SCO_DATA_SIZE_MAX bytes data if more than max,
+               and set warning status */
+            if (p_buf->len > BTM_SCO_DATA_SIZE_MAX)
+            {
+                p_buf->len = BTM_SCO_DATA_SIZE_MAX;
+                status = BTM_SCO_BAD_LENGTH;
+            }
+
+            UINT8_TO_STREAM (p, (UINT8)p_buf->len);
+            p_buf->len += HCI_SCO_PREAMBLE_SIZE;
+
+            fixed_queue_enqueue(p_ccb->xmit_data_q, p_buf);
+
+            btm_sco_check_send_pkts (sco_inx);
+        }
+    }
+    else
+    {
+        osi_free(p_buf);
+
+        BTM_TRACE_WARNING ("BTM_WriteScoData, invalid sco index: %d at state [%d]",
+            sco_inx, btm_cb.sco_cb.sco_db[sco_inx].state);
+        status = BTM_UNKNOWN_ADDR;
+    }
+
+    return (status);
+
+#else
+    UNUSED(sco_inx);
+    UNUSED(p_buf);
+    return (BTM_NO_RESOURCES);
+#endif
+}
+
+#if (BTM_MAX_SCO_LINKS>0)
+/*******************************************************************************
+**
+** Function         btm_send_connect_request
+**
+** Description      This function is called to respond to SCO connect indications
+**
+** Returns          void
+**
+*******************************************************************************/
+static tBTM_STATUS btm_send_connect_request(UINT16 acl_handle,
+                                            tBTM_ESCO_PARAMS *p_setup)
+{
+    UINT16 temp_pkt_types;
+    UINT8 xx;
+    tACL_CONN *p_acl;
+
+    /* Send connect request depending on version of spec */
+    if (!btm_cb.sco_cb.esco_supported)
+    {
+        if (!btsnd_hcic_add_SCO_conn (acl_handle, BTM_ESCO_2_SCO(p_setup->packet_types)))
+            return (BTM_NO_RESOURCES);
+    }
+    else
+    {
+        temp_pkt_types = (p_setup->packet_types & BTM_SCO_SUPPORTED_PKTS_MASK &
+                             btm_cb.btm_sco_pkt_types_supported);
+
+        /* OR in any exception packet types */
+        temp_pkt_types |= ((p_setup->packet_types & BTM_SCO_EXCEPTION_PKTS_MASK) |
+            (btm_cb.btm_sco_pkt_types_supported & BTM_SCO_EXCEPTION_PKTS_MASK));
+
+        /* Finally, remove EDR eSCO if the remote device doesn't support it */
+        /* UPF25:  Only SCO was brought up in this case */
+        btm_handle_to_acl_index(acl_handle);
+        if ((xx = btm_handle_to_acl_index(acl_handle)) < MAX_L2CAP_LINKS)
+        {
+            p_acl = &btm_cb.acl_db[xx];
+            if (!HCI_EDR_ESCO_2MPS_SUPPORTED(p_acl->peer_lmp_features[HCI_EXT_FEATURES_PAGE_0]))
+            {
+
+                BTM_TRACE_WARNING("BTM Remote does not support 2-EDR eSCO");
+                temp_pkt_types |= (HCI_ESCO_PKT_TYPES_MASK_NO_2_EV3 |
+                                   HCI_ESCO_PKT_TYPES_MASK_NO_2_EV5);
+            }
+            if (!HCI_EDR_ESCO_3MPS_SUPPORTED(p_acl->peer_lmp_features[HCI_EXT_FEATURES_PAGE_0]))
+            {
+
+                BTM_TRACE_WARNING("BTM Remote does not support 3-EDR eSCO");
+                temp_pkt_types |= (HCI_ESCO_PKT_TYPES_MASK_NO_3_EV3 |
+                                   HCI_ESCO_PKT_TYPES_MASK_NO_3_EV5);
+            }
+
+             /* Check to see if BR/EDR Secure Connections is being used
+             ** If so, we cannot use SCO-only packet types (HFP 1.7)
+             */
+            if (BTM_BothEndsSupportSecureConnections(p_acl->remote_addr))
+            {
+                temp_pkt_types &= ~(BTM_SCO_PKT_TYPE_MASK);
+                BTM_TRACE_DEBUG("%s: SCO Conn: pkt_types after removing SCO (0x%04x)", __FUNCTION__,
+                                 temp_pkt_types);
+
+                /* Return error if no packet types left */
+                if (temp_pkt_types == 0)
+                {
+                    BTM_TRACE_ERROR("%s: SCO Conn (BR/EDR SC): No packet types available",
+                                    __FUNCTION__);
+                    return (BTM_WRONG_MODE);
+                }
+            }
+            else
+            {
+                BTM_TRACE_DEBUG("%s: SCO Conn(BR/EDR SC):local or peer does not support BR/EDR SC",
+                                __FUNCTION__);
+            }
+        }
+
+
+        BTM_TRACE_API("      txbw 0x%x, rxbw 0x%x, lat 0x%x, voice 0x%x, retrans 0x%02x, pkt 0x%04x",
+            p_setup->tx_bw, p_setup->rx_bw,
+            p_setup->max_latency, p_setup->voice_contfmt,
+            p_setup->retrans_effort, temp_pkt_types);
+
+        if (!btsnd_hcic_setup_esco_conn(acl_handle,
+                                        p_setup->tx_bw,
+                                        p_setup->rx_bw,
+                                        p_setup->max_latency,
+                                        p_setup->voice_contfmt,
+                                        p_setup->retrans_effort,
+                                        temp_pkt_types))
+            return (BTM_NO_RESOURCES);
+        else
+            p_setup->packet_types = temp_pkt_types;
+    }
+
+    return (BTM_CMD_STARTED);
+}
+#endif
+
+/*******************************************************************************
+**
+** Function         btm_set_sco_ind_cback
+**
+** Description      This function is called to register for TCS SCO connect
+**                  indications.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_set_sco_ind_cback( tBTM_SCO_IND_CBACK *sco_ind_cb )
+{
+    btm_cb.sco_cb.app_sco_ind_cb = sco_ind_cb;
+}
+
+/*******************************************************************************
+**
+** Function         btm_accept_sco_link
+**
+** Description      This function is called to respond to TCS SCO connect
+**                  indications
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_accept_sco_link(UINT16 sco_inx, tBTM_ESCO_PARAMS *p_setup,
+                         tBTM_SCO_CB *p_conn_cb, tBTM_SCO_CB *p_disc_cb)
+{
+#if (BTM_MAX_SCO_LINKS>0)
+    tSCO_CONN        *p_sco;
+
+    if (sco_inx >= BTM_MAX_SCO_LINKS)
+    {
+        BTM_TRACE_ERROR("btm_accept_sco_link: Invalid sco_inx(%d)", sco_inx);
+        return;
+    }
+
+    /* Link role is ignored in for this message */
+    p_sco = &btm_cb.sco_cb.sco_db[sco_inx];
+    p_sco->p_conn_cb = p_conn_cb;
+    p_sco->p_disc_cb = p_disc_cb;
+    p_sco->esco.data.link_type = BTM_LINK_TYPE_ESCO; /* Accept with all supported types */
+
+    BTM_TRACE_DEBUG("TCS accept SCO: Packet Types 0x%04x", p_setup->packet_types);
+
+    btm_esco_conn_rsp(sco_inx, HCI_SUCCESS, p_sco->esco.data.bd_addr, p_setup);
+#else
+    btm_reject_sco_link(sco_inx);
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         btm_reject_sco_link
+**
+** Description      This function is called to respond to SCO connect indications
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_reject_sco_link( UINT16 sco_inx )
+{
+    btm_esco_conn_rsp(sco_inx, HCI_ERR_HOST_REJECT_RESOURCES,
+                      btm_cb.sco_cb.sco_db[sco_inx].esco.data.bd_addr, NULL);
+}
+
+/*******************************************************************************
+**
+** Function         BTM_CreateSco
+**
+** Description      This function is called to create an SCO connection. If the
+**                  "is_orig" flag is TRUE, the connection will be originated,
+**                  otherwise BTM will wait for the other side to connect.
+**
+**                  NOTE:  If BTM_IGNORE_SCO_PKT_TYPE is passed in the pkt_types
+**                      parameter the default packet types is used.
+**
+** Returns          BTM_UNKNOWN_ADDR if the ACL connection is not up
+**                  BTM_BUSY         if another SCO being set up to
+**                                   the same BD address
+**                  BTM_NO_RESOURCES if the max SCO limit has been reached
+**                  BTM_CMD_STARTED  if the connection establishment is started.
+**                                   In this case, "*p_sco_inx" is filled in
+**                                   with the sco index used for the connection.
+**
+*******************************************************************************/
+tBTM_STATUS BTM_CreateSco (BD_ADDR remote_bda, BOOLEAN is_orig, UINT16 pkt_types,
+                           UINT16 *p_sco_inx, tBTM_SCO_CB *p_conn_cb,
+                           tBTM_SCO_CB *p_disc_cb)
+{
+#if (BTM_MAX_SCO_LINKS > 0)
+    tBTM_ESCO_PARAMS *p_setup;
+    tSCO_CONN        *p = &btm_cb.sco_cb.sco_db[0];
+    UINT16            xx;
+    UINT16            acl_handle = 0;
+    UINT16            temp_pkt_types;
+    tACL_CONN        *p_acl;
+
+#if (BTM_SCO_WAKE_PARKED_LINK == TRUE)
+    tBTM_PM_PWR_MD    pm;
+    tBTM_PM_STATE     state;
+#else
+    UINT8             mode;
+#endif  // BTM_SCO_WAKE_PARKED_LINK
+
+    *p_sco_inx = BTM_INVALID_SCO_INDEX;
+
+    /* If originating, ensure that there is an ACL connection to the BD Address */
+    if (is_orig)
+    {
+        if ((!remote_bda) || ((acl_handle = BTM_GetHCIConnHandle (remote_bda, BT_TRANSPORT_BR_EDR)) == 0xFFFF))
+            return (BTM_UNKNOWN_ADDR);
+    }
+
+    if (remote_bda)
+    {
+        /* If any SCO is being established to the remote BD address, refuse this */
+        for (xx = 0; xx < BTM_MAX_SCO_LINKS; xx++, p++)
+        {
+            if (((p->state == SCO_ST_CONNECTING) || (p->state == SCO_ST_LISTENING)
+                || (p->state == SCO_ST_PEND_UNPARK))
+                && (!memcmp (p->esco.data.bd_addr, remote_bda, BD_ADDR_LEN)))
+            {
+                return (BTM_BUSY);
+            }
+        }
+    }
+    else
+    {
+        /* Support only 1 wildcard BD address at a time */
+        for (xx = 0; xx < BTM_MAX_SCO_LINKS; xx++, p++)
+        {
+            if ((p->state == SCO_ST_LISTENING) && (!p->rem_bd_known))
+                return (BTM_BUSY);
+        }
+    }
+
+    /* Now, try to find an unused control block, and kick off the SCO establishment */
+    for (xx = 0, p = &btm_cb.sco_cb.sco_db[0]; xx < BTM_MAX_SCO_LINKS; xx++, p++)
+    {
+        if (p->state == SCO_ST_UNUSED)
+        {
+            if (remote_bda)
+            {
+                if (is_orig)
+                {
+                    /* can not create SCO link if in park mode */
+#if BTM_SCO_WAKE_PARKED_LINK == TRUE
+                    if ((btm_read_power_mode_state(p->esco.data.bd_addr, &state) == BTM_SUCCESS))
+                    {
+                        if (state == BTM_PM_ST_SNIFF || state == BTM_PM_ST_PARK ||
+                            state == BTM_PM_ST_PENDING)
+                        {
+                            BTM_TRACE_DEBUG("%s In sniff, park or pend mode: %d", __func__, state);
+                            memset( (void*)&pm, 0, sizeof(pm));
+                            pm.mode = BTM_PM_MD_ACTIVE;
+                            BTM_SetPowerMode(BTM_PM_SET_ONLY_ID, remote_bda, &pm);
+                            p->state = SCO_ST_PEND_UNPARK;
+                        }
+                    }
+#else  // BTM_SCO_WAKE_PARKED_LINK
+                    if( (BTM_ReadPowerMode(remote_bda, &mode) == BTM_SUCCESS) && (mode == BTM_PM_MD_PARK) )
+                        return (BTM_WRONG_MODE);
+#endif  // BTM_SCO_WAKE_PARKED_LINK
+                }
+                memcpy (p->esco.data.bd_addr, remote_bda, BD_ADDR_LEN);
+                p->rem_bd_known = TRUE;
+            }
+            else
+                p->rem_bd_known = FALSE;
+
+            /* Link role is ignored in for this message */
+            if (pkt_types == BTM_IGNORE_SCO_PKT_TYPE)
+                pkt_types = btm_cb.sco_cb.def_esco_parms.packet_types;
+
+            p_setup = &p->esco.setup;
+            *p_setup = btm_cb.sco_cb.def_esco_parms;
+            p_setup->packet_types = (btm_cb.sco_cb.desired_sco_mode == BTM_LINK_TYPE_SCO)
+                ? (pkt_types & BTM_SCO_LINK_ONLY_MASK) : pkt_types;
+
+            temp_pkt_types = (p_setup->packet_types & BTM_SCO_SUPPORTED_PKTS_MASK &
+                             btm_cb.btm_sco_pkt_types_supported);
+
+            /* OR in any exception packet types */
+            if (btm_cb.sco_cb.desired_sco_mode == HCI_LINK_TYPE_ESCO)
+            {
+                temp_pkt_types |= ((p_setup->packet_types & BTM_SCO_EXCEPTION_PKTS_MASK) |
+                    (btm_cb.btm_sco_pkt_types_supported & BTM_SCO_EXCEPTION_PKTS_MASK));
+            }
+            else    /* Only using SCO packet types; turn off EDR also */
+            {
+                temp_pkt_types |= BTM_SCO_EXCEPTION_PKTS_MASK;
+            }
+
+            p_setup->packet_types = temp_pkt_types;
+            p->p_conn_cb  = p_conn_cb;
+            p->p_disc_cb  = p_disc_cb;
+            p->hci_handle = BTM_INVALID_HCI_HANDLE;
+            p->is_orig = is_orig;
+
+            if( p->state != SCO_ST_PEND_UNPARK )
+            {
+                if (is_orig)
+                {
+                    /* If role change is in progress, do not proceed with SCO setup
+                     * Wait till role change is complete */
+                    p_acl = btm_bda_to_acl(remote_bda, BT_TRANSPORT_BR_EDR);
+                    if (p_acl && p_acl->switch_role_state != BTM_ACL_SWKEY_STATE_IDLE)
+                    {
+                        BTM_TRACE_API("Role Change is in progress for ACL handle 0x%04x",acl_handle);
+                        p->state = SCO_ST_PEND_ROLECHANGE;
+
+                    }
+                }
+            }
+
+            if( p->state != SCO_ST_PEND_UNPARK && p->state != SCO_ST_PEND_ROLECHANGE )
+            {
+                if (is_orig)
+                {
+                    BTM_TRACE_API("BTM_CreateSco -> (e)SCO Link for ACL handle 0x%04x, Desired Type %d",
+                                    acl_handle, btm_cb.sco_cb.desired_sco_mode);
+
+                    if ((btm_send_connect_request(acl_handle, p_setup)) != BTM_CMD_STARTED)
+                        return (BTM_NO_RESOURCES);
+
+                    p->state = SCO_ST_CONNECTING;
+                }
+                else
+                    p->state = SCO_ST_LISTENING;
+            }
+
+            *p_sco_inx = xx;
+
+            return (BTM_CMD_STARTED);
+        }
+    }
+
+#endif
+    /* If here, all SCO blocks in use */
+    return (BTM_NO_RESOURCES);
+}
+
+#if (BTM_SCO_WAKE_PARKED_LINK == TRUE)
+/*******************************************************************************
+**
+** Function         btm_sco_chk_pend_unpark
+**
+** Description      This function is called by BTIF when there is a mode change
+**                  event to see if there are SCO commands waiting for the unpark.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_sco_chk_pend_unpark (UINT8 hci_status, UINT16 hci_handle)
+{
+#if (BTM_MAX_SCO_LINKS>0)
+    UINT16      xx;
+    UINT16      acl_handle;
+    tSCO_CONN   *p = &btm_cb.sco_cb.sco_db[0];
+
+    for (xx = 0; xx < BTM_MAX_SCO_LINKS; xx++, p++)
+    {
+        if ((p->state == SCO_ST_PEND_UNPARK) &&
+            ((acl_handle = BTM_GetHCIConnHandle (p->esco.data.bd_addr, BT_TRANSPORT_BR_EDR)) == hci_handle))
+
+        {
+            BTM_TRACE_API("btm_sco_chk_pend_unpark -> (e)SCO Link for ACL handle 0x%04x, Desired Type %d, hci_status 0x%02x",
+                                    acl_handle, btm_cb.sco_cb.desired_sco_mode, hci_status);
+
+            if ((btm_send_connect_request(acl_handle, &p->esco.setup)) == BTM_CMD_STARTED)
+                p->state = SCO_ST_CONNECTING;
+        }
+    }
+#endif  // BTM_MAX_SCO_LINKS
+}
+#endif  // BTM_SCO_WAKE_PARKED_LINK
+
+/*******************************************************************************
+**
+** Function         btm_sco_chk_pend_rolechange
+**
+** Description      This function is called by BTIF when there is a role change
+**                  event to see if there are SCO commands waiting for the role change.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_sco_chk_pend_rolechange (UINT16 hci_handle)
+{
+#if (BTM_MAX_SCO_LINKS>0)
+    UINT16      xx;
+    UINT16      acl_handle;
+    tSCO_CONN   *p = &btm_cb.sco_cb.sco_db[0];
+
+    for (xx = 0; xx < BTM_MAX_SCO_LINKS; xx++, p++)
+    {
+        if ((p->state == SCO_ST_PEND_ROLECHANGE) &&
+            ((acl_handle = BTM_GetHCIConnHandle (p->esco.data.bd_addr, BT_TRANSPORT_BR_EDR)) == hci_handle))
+
+        {
+            BTM_TRACE_API("btm_sco_chk_pend_rolechange -> (e)SCO Link for ACL handle 0x%04x", acl_handle);
+
+            if ((btm_send_connect_request(acl_handle, &p->esco.setup)) == BTM_CMD_STARTED)
+                p->state = SCO_ST_CONNECTING;
+        }
+    }
+#endif
+}
+
+/*******************************************************************************
+**
+** Function        btm_sco_disc_chk_pend_for_modechange
+**
+** Description     This function is called by btm when there is a mode change
+**                 event to see if there are SCO  disconnect commands waiting for the mode change.
+**
+** Returns         void
+**
+*******************************************************************************/
+void btm_sco_disc_chk_pend_for_modechange (UINT16 hci_handle)
+{
+#if (BTM_MAX_SCO_LINKS>0)
+    tSCO_CONN   *p = &btm_cb.sco_cb.sco_db[0];
+
+    BTM_TRACE_DEBUG("%s: hci_handle 0x%04x, p->state 0x%02x", __func__,
+                     hci_handle, p->state);
+
+    for (UINT16 xx = 0; xx < BTM_MAX_SCO_LINKS; xx++, p++)
+    {
+        if ((p->state == SCO_ST_PEND_MODECHANGE) &&
+            (BTM_GetHCIConnHandle (p->esco.data.bd_addr, BT_TRANSPORT_BR_EDR)) == hci_handle)
+
+        {
+            BTM_TRACE_DEBUG("%s: SCO Link handle 0x%04x", __func__, p->hci_handle);
+            BTM_RemoveSco(xx);
+        }
+    }
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         btm_sco_conn_req
+**
+** Description      This function is called by BTIF when an SCO connection
+**                  request is received from a remote.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_sco_conn_req (BD_ADDR bda,  DEV_CLASS dev_class, UINT8 link_type)
+{
+#if (BTM_MAX_SCO_LINKS>0)
+    tSCO_CB     *p_sco = &btm_cb.sco_cb;
+    tSCO_CONN   *p = &p_sco->sco_db[0];
+    UINT16      xx;
+    tBTM_ESCO_CONN_REQ_EVT_DATA evt_data;
+
+    for (xx = 0; xx < BTM_MAX_SCO_LINKS; xx++, p++)
+    {
+        /*
+         * If the sco state is in the SCO_ST_CONNECTING state, we still need
+         * to return accept sco to avoid race conditon for sco creation
+         */
+        int rem_bd_matches = p->rem_bd_known &&
+          !memcmp (p->esco.data.bd_addr, bda, BD_ADDR_LEN);
+        if (((p->state == SCO_ST_CONNECTING) && rem_bd_matches) ||
+            ((p->state == SCO_ST_LISTENING) && (rem_bd_matches || !p->rem_bd_known)))
+        {
+            /* If this guy was a wildcard, he is not one any more */
+            p->rem_bd_known = TRUE;
+            p->esco.data.link_type = link_type;
+            p->state = SCO_ST_W4_CONN_RSP;
+            memcpy (p->esco.data.bd_addr, bda, BD_ADDR_LEN);
+
+            /* If no callback, auto-accept the connection if packet types match */
+            if (!p->esco.p_esco_cback)
+            {
+                /* If requesting eSCO reject if default parameters are SCO only */
+                if ((link_type == BTM_LINK_TYPE_ESCO
+                    && !(p_sco->def_esco_parms.packet_types & BTM_ESCO_LINK_ONLY_MASK)
+                    && ((p_sco->def_esco_parms.packet_types & BTM_SCO_EXCEPTION_PKTS_MASK)
+                       == BTM_SCO_EXCEPTION_PKTS_MASK))
+
+                    /* Reject request if SCO is desired but no SCO packets delected */
+                    || (link_type == BTM_LINK_TYPE_SCO
+                    && !(p_sco->def_esco_parms.packet_types & BTM_SCO_LINK_ONLY_MASK)))
+                {
+                    btm_esco_conn_rsp(xx, HCI_ERR_HOST_REJECT_RESOURCES, bda, NULL);
+                }
+                else    /* Accept the request */
+                {
+                    btm_esco_conn_rsp(xx, HCI_SUCCESS, bda, NULL);
+                }
+            }
+            else    /* Notify upper layer of connect indication */
+            {
+                memcpy(evt_data.bd_addr, bda, BD_ADDR_LEN);
+                memcpy(evt_data.dev_class, dev_class, DEV_CLASS_LEN);
+                evt_data.link_type = link_type;
+                evt_data.sco_inx = xx;
+                p->esco.p_esco_cback(BTM_ESCO_CONN_REQ_EVT, (tBTM_ESCO_EVT_DATA *)&evt_data);
+            }
+
+            return;
+        }
+    }
+
+    /* TCS usage */
+    if (btm_cb.sco_cb.app_sco_ind_cb)
+    {
+        /* Now, try to find an unused control block */
+        for (xx = 0, p = &btm_cb.sco_cb.sco_db[0]; xx < BTM_MAX_SCO_LINKS; xx++, p++)
+        {
+            if (p->state == SCO_ST_UNUSED)
+            {
+                p->is_orig = FALSE;
+                p->state = SCO_ST_LISTENING;
+
+                p->esco.data.link_type = link_type;
+                memcpy (p->esco.data.bd_addr, bda, BD_ADDR_LEN);
+                p->rem_bd_known = TRUE;
+                break;
+            }
+        }
+        if( xx < BTM_MAX_SCO_LINKS)
+        {
+            btm_cb.sco_cb.app_sco_ind_cb(xx);
+            return;
+        }
+    }
+
+#endif
+    /* If here, no one wants the SCO connection. Reject it */
+    BTM_TRACE_WARNING("btm_sco_conn_req: No one wants this SCO connection; rejecting it");
+    btm_esco_conn_rsp(BTM_MAX_SCO_LINKS, HCI_ERR_HOST_REJECT_RESOURCES, bda, NULL);
+}
+
+/*******************************************************************************
+**
+** Function         btm_sco_connected
+**
+** Description      This function is called by BTIF when an (e)SCO connection
+**                  is connected.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_sco_connected (UINT8 hci_status, BD_ADDR bda, UINT16 hci_handle,
+                        tBTM_ESCO_DATA *p_esco_data)
+{
+#if (BTM_MAX_SCO_LINKS>0)
+    tSCO_CONN   *p = &btm_cb.sco_cb.sco_db[0];
+    UINT16      xx;
+    BOOLEAN     spt = FALSE;
+    tBTM_CHG_ESCO_PARAMS parms;
+#endif
+
+    btm_cb.sco_cb.sco_disc_reason = hci_status;
+
+#if (BTM_MAX_SCO_LINKS>0)
+    for (xx = 0; xx < BTM_MAX_SCO_LINKS; xx++, p++)
+    {
+        if (((p->state == SCO_ST_CONNECTING) ||
+             (p->state == SCO_ST_LISTENING)  ||
+             (p->state == SCO_ST_W4_CONN_RSP))
+         && (p->rem_bd_known)
+         && (!bda || !memcmp (p->esco.data.bd_addr, bda, BD_ADDR_LEN)))
+        {
+            if (hci_status != HCI_SUCCESS)
+            {
+                /* Report the error if originator, otherwise remain in Listen mode */
+                if (p->is_orig)
+                {
+                    /* If role switch is pending, we need try again after role switch is complete */
+                    if(hci_status == HCI_ERR_ROLE_SWITCH_PENDING)
+                    {
+                        BTM_TRACE_API("Role Change pending for HCI handle 0x%04x",hci_handle);
+                        p->state = SCO_ST_PEND_ROLECHANGE;
+                    }
+                    /* avoid calling disconnect callback because of sco creation race */
+                    else if (hci_status != HCI_ERR_LMP_ERR_TRANS_COLLISION)
+                    {
+                        p->state = SCO_ST_UNUSED;
+                        (*p->p_disc_cb)(xx);
+                    }
+                }
+                else
+                {
+                    /* Notify the upper layer that incoming sco connection has failed. */
+                    if (p->state == SCO_ST_CONNECTING)
+                    {
+                        p->state = SCO_ST_UNUSED;
+                        (*p->p_disc_cb)(xx);
+                    }
+                    else
+                        p->state = SCO_ST_LISTENING;
+                }
+
+                return;
+            }
+
+            if (p->state == SCO_ST_LISTENING)
+                spt = TRUE;
+
+            p->state = SCO_ST_CONNECTED;
+            p->hci_handle = hci_handle;
+
+            if (!btm_cb.sco_cb.esco_supported)
+            {
+                p->esco.data.link_type = BTM_LINK_TYPE_SCO;
+                if (spt)
+                {
+                    parms.packet_types = p->esco.setup.packet_types;
+                    /* Keep the other parameters the same for SCO */
+                    parms.max_latency = p->esco.setup.max_latency;
+                    parms.retrans_effort = p->esco.setup.retrans_effort;
+
+                    BTM_ChangeEScoLinkParms(xx, &parms);
+                }
+            }
+            else
+            {
+                if (p_esco_data)
+                    p->esco.data = *p_esco_data;
+            }
+
+            (*p->p_conn_cb)(xx);
+
+            return;
+        }
+    }
+#endif
+}
+
+
+/*******************************************************************************
+**
+** Function         btm_find_scb_by_handle
+**
+** Description      Look through all active SCO connection for a match based on the
+**                  HCI handle.
+**
+** Returns          index to matched SCO connection CB, or BTM_MAX_SCO_LINKS if
+**                  no match.
+**
+*******************************************************************************/
+UINT16  btm_find_scb_by_handle (UINT16 handle)
+{
+    int         xx;
+    tSCO_CONN    *p = &btm_cb.sco_cb.sco_db[0];
+
+    for (xx = 0; xx < BTM_MAX_SCO_LINKS; xx++, p++)
+    {
+        if ((p->state == SCO_ST_CONNECTED) && (p->hci_handle == handle))
+        {
+            return (xx);
+        }
+    }
+
+    /* If here, no match found */
+    return (xx);
+}
+
+/*******************************************************************************
+**
+** Function         BTM_RemoveSco
+**
+** Description      This function is called to remove a specific SCO connection.
+**
+** Returns          status of the operation
+**
+*******************************************************************************/
+tBTM_STATUS BTM_RemoveSco (UINT16 sco_inx)
+{
+#if (BTM_MAX_SCO_LINKS>0)
+    tSCO_CONN   *p = &btm_cb.sco_cb.sco_db[sco_inx];
+    UINT16       tempstate;
+    tBTM_PM_STATE   state = BTM_PM_ST_INVALID;
+
+    BTM_TRACE_DEBUG("%s", __func__);
+
+    /* Validity check */
+    if ((sco_inx >= BTM_MAX_SCO_LINKS) || (p->state == SCO_ST_UNUSED))
+        return (BTM_UNKNOWN_ADDR);
+
+    /* If no HCI handle, simply drop the connection and return */
+    if (p->hci_handle == BTM_INVALID_HCI_HANDLE || p->state == SCO_ST_PEND_UNPARK)
+    {
+        p->hci_handle = BTM_INVALID_HCI_HANDLE;
+        p->state = SCO_ST_UNUSED;
+        p->esco.p_esco_cback = NULL;    /* Deregister the eSCO event callback */
+        return (BTM_SUCCESS);
+    }
+
+    if ((btm_read_power_mode_state(p->esco.data.bd_addr, &state) == BTM_SUCCESS)
+        && state == BTM_PM_ST_PENDING)
+    {
+        BTM_TRACE_DEBUG("%s: BTM_PM_ST_PENDING for ACL mapped with SCO Link 0x%04x",
+                          __func__, p->hci_handle);
+        p->state = SCO_ST_PEND_MODECHANGE;
+        return (BTM_CMD_STARTED);
+    }
+
+    tempstate = p->state;
+    p->state = SCO_ST_DISCONNECTING;
+
+    if (!btsnd_hcic_disconnect (p->hci_handle, HCI_ERR_PEER_USER))
+    {
+        p->state = tempstate;
+        return (BTM_NO_RESOURCES);
+    }
+
+    return (BTM_CMD_STARTED);
+#else
+    return (BTM_NO_RESOURCES);
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         btm_remove_sco_links
+**
+** Description      This function is called to remove all sco links for an ACL link.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_remove_sco_links (BD_ADDR bda)
+{
+#if (BTM_MAX_SCO_LINKS>0)
+    tSCO_CONN   *p = &btm_cb.sco_cb.sco_db[0];
+    UINT16       xx;
+
+    for (xx = 0; xx < BTM_MAX_SCO_LINKS; xx++, p++)
+    {
+        if (p->rem_bd_known && (!memcmp (p->esco.data.bd_addr, bda, BD_ADDR_LEN)))
+        {
+            BTM_RemoveSco(xx);
+        }
+    }
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         btm_sco_removed
+**
+** Description      This function is called by BTIF when an SCO connection
+**                  is removed.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_sco_removed (UINT16 hci_handle, UINT8 reason)
+{
+#if (BTM_MAX_SCO_LINKS>0)
+    tSCO_CONN   *p = &btm_cb.sco_cb.sco_db[0];
+    UINT16      xx;
+#endif
+
+    btm_cb.sco_cb.sco_disc_reason = reason;
+
+#if (BTM_MAX_SCO_LINKS>0)
+    p = &btm_cb.sco_cb.sco_db[0];
+    for (xx = 0; xx < BTM_MAX_SCO_LINKS; xx++, p++)
+    {
+        if ((p->state != SCO_ST_UNUSED) && (p->state != SCO_ST_LISTENING) && (p->hci_handle == hci_handle))
+        {
+            btm_sco_flush_sco_data(xx);
+
+            p->state = SCO_ST_UNUSED;
+            p->hci_handle = BTM_INVALID_HCI_HANDLE;
+            p->rem_bd_known = FALSE;
+            p->esco.p_esco_cback = NULL;    /* Deregister eSCO callback */
+            (*p->p_disc_cb)(xx);
+
+            return;
+        }
+    }
+#endif
+}
+
+
+/*******************************************************************************
+**
+** Function         btm_sco_acl_removed
+**
+** Description      This function is called when an ACL connection is
+**                  removed. If the BD address is NULL, it is assumed that
+**                  the local device is down, and all SCO links are removed.
+**                  If a specific BD address is passed, only SCO connections
+**                  to that BD address are removed.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_sco_acl_removed (BD_ADDR bda)
+{
+#if (BTM_MAX_SCO_LINKS>0)
+    tSCO_CONN   *p = &btm_cb.sco_cb.sco_db[0];
+    UINT16      xx;
+
+    for (xx = 0; xx < BTM_MAX_SCO_LINKS; xx++, p++)
+    {
+        if (p->state != SCO_ST_UNUSED)
+        {
+            if ((!bda) || (!memcmp (p->esco.data.bd_addr, bda, BD_ADDR_LEN) && p->rem_bd_known))
+            {
+                btm_sco_flush_sco_data(xx);
+
+                p->state = SCO_ST_UNUSED;
+                p->esco.p_esco_cback = NULL;    /* Deregister eSCO callback */
+                (*p->p_disc_cb)(xx);
+            }
+        }
+    }
+#endif
+}
+
+
+/*******************************************************************************
+**
+** Function         BTM_SetScoPacketTypes
+**
+** Description      This function is called to set the packet types used for
+**                  a specific SCO connection,
+**
+** Parameters       pkt_types - One or more of the following
+**                  BTM_SCO_PKT_TYPES_MASK_HV1
+**                  BTM_SCO_PKT_TYPES_MASK_HV2
+**                  BTM_SCO_PKT_TYPES_MASK_HV3
+**                  BTM_SCO_PKT_TYPES_MASK_EV3
+**                  BTM_SCO_PKT_TYPES_MASK_EV4
+**                  BTM_SCO_PKT_TYPES_MASK_EV5
+**                  BTM_SCO_PKT_TYPES_MASK_NO_2_EV3
+**                  BTM_SCO_PKT_TYPES_MASK_NO_3_EV3
+**                  BTM_SCO_PKT_TYPES_MASK_NO_2_EV5
+**                  BTM_SCO_PKT_TYPES_MASK_NO_3_EV5
+**
+**                  BTM_SCO_LINK_ALL_MASK   - enables all supported types
+**
+** Returns          status of the operation
+**
+*******************************************************************************/
+tBTM_STATUS BTM_SetScoPacketTypes (UINT16 sco_inx, UINT16 pkt_types)
+{
+#if (BTM_MAX_SCO_LINKS>0)
+    tBTM_CHG_ESCO_PARAMS parms;
+    tSCO_CONN           *p;
+
+    /* Validity check */
+    if (sco_inx >= BTM_MAX_SCO_LINKS)
+        return (BTM_UNKNOWN_ADDR);
+
+    p = &btm_cb.sco_cb.sco_db[sco_inx];
+    parms.packet_types = pkt_types;
+
+    /* Keep the other parameters the same for SCO */
+    parms.max_latency = p->esco.setup.max_latency;
+    parms.retrans_effort = p->esco.setup.retrans_effort;
+
+    return (BTM_ChangeEScoLinkParms(sco_inx, &parms));
+#else
+    return (BTM_UNKNOWN_ADDR);
+#endif
+}
+
+
+/*******************************************************************************
+**
+** Function         BTM_ReadScoPacketTypes
+**
+** Description      This function is read the packet types used for a specific
+**                  SCO connection.
+**
+** Returns          Packet types supported for the connection
+**                  One or more of the following (bitmask):
+**                  BTM_SCO_PKT_TYPES_MASK_HV1
+**                  BTM_SCO_PKT_TYPES_MASK_HV2
+**                  BTM_SCO_PKT_TYPES_MASK_HV3
+**                  BTM_SCO_PKT_TYPES_MASK_EV3
+**                  BTM_SCO_PKT_TYPES_MASK_EV4
+**                  BTM_SCO_PKT_TYPES_MASK_EV5
+**                  BTM_SCO_PKT_TYPES_MASK_NO_2_EV3
+**                  BTM_SCO_PKT_TYPES_MASK_NO_3_EV3
+**                  BTM_SCO_PKT_TYPES_MASK_NO_2_EV5
+**                  BTM_SCO_PKT_TYPES_MASK_NO_3_EV5
+**
+*******************************************************************************/
+UINT16 BTM_ReadScoPacketTypes (UINT16 sco_inx)
+{
+#if (BTM_MAX_SCO_LINKS>0)
+    tSCO_CONN *p = &btm_cb.sco_cb.sco_db[sco_inx];
+
+    /* Validity check */
+    if ((sco_inx < BTM_MAX_SCO_LINKS) && (p->state == SCO_ST_CONNECTED))
+        return (p->esco.setup.packet_types);
+    else
+        return (0);
+#else
+    return (0);
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         BTM_ReadScoDiscReason
+**
+** Description      This function is returns the reason why an (e)SCO connection
+**                  has been removed. It contains the value until read, or until
+**                  another (e)SCO connection has disconnected.
+**
+** Returns          HCI reason or BTM_INVALID_SCO_DISC_REASON if not set.
+**
+*******************************************************************************/
+UINT16 BTM_ReadScoDiscReason (void)
+{
+    UINT16 res = btm_cb.sco_cb.sco_disc_reason;
+    btm_cb.sco_cb.sco_disc_reason = BTM_INVALID_SCO_DISC_REASON;
+    return (res);
+}
+
+/*******************************************************************************
+**
+** Function         BTM_ReadDeviceScoPacketTypes
+**
+** Description      This function is read the SCO packet types that
+**                  the device supports.
+**
+** Returns          Packet types supported by the device.
+**                  One or more of the following (bitmask):
+**                  BTM_SCO_PKT_TYPES_MASK_HV1
+**                  BTM_SCO_PKT_TYPES_MASK_HV2
+**                  BTM_SCO_PKT_TYPES_MASK_HV3
+**                  BTM_SCO_PKT_TYPES_MASK_EV3
+**                  BTM_SCO_PKT_TYPES_MASK_EV4
+**                  BTM_SCO_PKT_TYPES_MASK_EV5
+**                  BTM_SCO_PKT_TYPES_MASK_NO_2_EV3
+**                  BTM_SCO_PKT_TYPES_MASK_NO_3_EV3
+**                  BTM_SCO_PKT_TYPES_MASK_NO_2_EV5
+**                  BTM_SCO_PKT_TYPES_MASK_NO_3_EV5
+**
+*******************************************************************************/
+UINT16 BTM_ReadDeviceScoPacketTypes (void)
+{
+    return (btm_cb.btm_sco_pkt_types_supported);
+}
+
+/*******************************************************************************
+**
+** Function         BTM_ReadScoHandle
+**
+** Description      This function is used to read the HCI handle used for a specific
+**                  SCO connection,
+**
+** Returns          handle for the connection, or 0xFFFF if invalid SCO index.
+**
+*******************************************************************************/
+UINT16 BTM_ReadScoHandle (UINT16 sco_inx)
+{
+#if (BTM_MAX_SCO_LINKS>0)
+    tSCO_CONN   *p = &btm_cb.sco_cb.sco_db[sco_inx];
+
+    /* Validity check */
+    if ((sco_inx < BTM_MAX_SCO_LINKS) && (p->state == SCO_ST_CONNECTED))
+        return (p->hci_handle);
+    else
+        return (BTM_INVALID_HCI_HANDLE);
+#else
+    return (BTM_INVALID_HCI_HANDLE);
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         BTM_ReadScoBdAddr
+**
+** Description      This function is read the remote BD Address for a specific
+**                  SCO connection,
+**
+** Returns          pointer to BD address or NULL if not known
+**
+*******************************************************************************/
+UINT8 *BTM_ReadScoBdAddr (UINT16 sco_inx)
+{
+#if (BTM_MAX_SCO_LINKS>0)
+    tSCO_CONN   *p = &btm_cb.sco_cb.sco_db[sco_inx];
+
+    /* Validity check */
+    if ((sco_inx < BTM_MAX_SCO_LINKS) && (p->rem_bd_known))
+        return (p->esco.data.bd_addr);
+    else
+        return (NULL);
+#else
+    return (NULL);
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         BTM_SetEScoMode
+**
+** Description      This function sets up the negotiated parameters for SCO or
+**                  eSCO, and sets as the default mode used for outgoing calls to
+**                  BTM_CreateSco.  It does not change any currently active (e)SCO links.
+**                  Note:  Incoming (e)SCO connections will always use packet types
+**                      supported by the controller.  If eSCO is not desired the
+**                      feature should be disabled in the controller's feature mask.
+**
+** Returns          BTM_SUCCESS if the successful.
+**                  BTM_BUSY if there are one or more active (e)SCO links.
+**
+*******************************************************************************/
+tBTM_STATUS BTM_SetEScoMode (tBTM_SCO_TYPE sco_mode, tBTM_ESCO_PARAMS *p_parms)
+{
+    tSCO_CB          *p_esco = &btm_cb.sco_cb;
+    tBTM_ESCO_PARAMS *p_def = &p_esco->def_esco_parms;
+
+    if (p_esco->esco_supported)
+    {
+        if (p_parms)
+        {
+            if (sco_mode == BTM_LINK_TYPE_ESCO)
+                *p_def = *p_parms;  /* Save as the default parameters */
+            else    /* Load only the SCO packet types */
+            {
+                p_def->packet_types = p_parms->packet_types;
+                p_def->tx_bw            = BTM_64KBITS_RATE;
+                p_def->rx_bw            = BTM_64KBITS_RATE;
+                p_def->max_latency      = 0x000a;
+                p_def->voice_contfmt    = 0x0060;
+                p_def->retrans_effort   = 0;
+
+                /* OR in any exception packet types */
+                p_def->packet_types |= BTM_SCO_EXCEPTION_PKTS_MASK;
+            }
+        }
+        p_esco->desired_sco_mode = sco_mode;
+        BTM_TRACE_API("BTM_SetEScoMode -> mode %d",  sco_mode);
+    }
+    else
+    {
+        p_esco->desired_sco_mode = BTM_LINK_TYPE_SCO;
+        p_def->packet_types &= BTM_SCO_LINK_ONLY_MASK;
+        p_def->retrans_effort = 0;
+        BTM_TRACE_API("BTM_SetEScoMode -> mode SCO (eSCO not supported)");
+    }
+
+    BTM_TRACE_DEBUG("    txbw 0x%08x, rxbw 0x%08x, max_lat 0x%04x, voice 0x%04x, pkt 0x%04x, rtx effort 0x%02x",
+                     p_def->tx_bw, p_def->rx_bw, p_def->max_latency,
+                     p_def->voice_contfmt, p_def->packet_types,
+                     p_def->retrans_effort);
+
+    return (BTM_SUCCESS);
+}
+
+
+
+/*******************************************************************************
+**
+** Function         BTM_RegForEScoEvts
+**
+** Description      This function registers a SCO event callback with the
+**                  specified instance.  It should be used to received
+**                  connection indication events and change of link parameter
+**                  events.
+**
+** Returns          BTM_SUCCESS if the successful.
+**                  BTM_ILLEGAL_VALUE if there is an illegal sco_inx
+**                  BTM_MODE_UNSUPPORTED if controller version is not BT1.2 or
+**                          later or does not support eSCO.
+**
+*******************************************************************************/
+tBTM_STATUS BTM_RegForEScoEvts (UINT16 sco_inx, tBTM_ESCO_CBACK *p_esco_cback)
+{
+#if (BTM_MAX_SCO_LINKS>0)
+    if (!btm_cb.sco_cb.esco_supported)
+    {
+        btm_cb.sco_cb.sco_db[sco_inx].esco.p_esco_cback = NULL;
+        return (BTM_MODE_UNSUPPORTED);
+    }
+
+    if (sco_inx < BTM_MAX_SCO_LINKS &&
+        btm_cb.sco_cb.sco_db[sco_inx].state != SCO_ST_UNUSED)
+    {
+        btm_cb.sco_cb.sco_db[sco_inx].esco.p_esco_cback = p_esco_cback;
+        return (BTM_SUCCESS);
+    }
+    return (BTM_ILLEGAL_VALUE);
+#else
+    return (BTM_MODE_UNSUPPORTED);
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         BTM_ReadEScoLinkParms
+**
+** Description      This function returns the current eSCO link parameters for
+**                  the specified handle.  This can be called anytime a connection
+**                  is active, but is typically called after receiving the SCO
+**                  opened callback.
+**
+**                  Note: If called over a 1.1 controller, only the packet types
+**                        field has meaning.
+**
+** Returns          BTM_SUCCESS if returned data is valid connection.
+**                  BTM_WRONG_MODE if no connection with a peer device or bad sco_inx.
+**
+*******************************************************************************/
+tBTM_STATUS BTM_ReadEScoLinkParms (UINT16 sco_inx, tBTM_ESCO_DATA *p_parms)
+{
+#if (BTM_MAX_SCO_LINKS>0)
+    UINT8 index;
+
+    BTM_TRACE_API("BTM_ReadEScoLinkParms -> sco_inx 0x%04x", sco_inx);
+
+    if (sco_inx < BTM_MAX_SCO_LINKS &&
+        btm_cb.sco_cb.sco_db[sco_inx].state >= SCO_ST_CONNECTED)
+    {
+        *p_parms = btm_cb.sco_cb.sco_db[sco_inx].esco.data;
+        return (BTM_SUCCESS);
+    }
+
+    if (sco_inx == BTM_FIRST_ACTIVE_SCO_INDEX)
+    {
+        for (index = 0; index < BTM_MAX_SCO_LINKS; index++)
+        {
+            if (btm_cb.sco_cb.sco_db[index].state >= SCO_ST_CONNECTED)
+            {
+                BTM_TRACE_API("BTM_ReadEScoLinkParms the first active SCO index is %d",index);
+                *p_parms = btm_cb.sco_cb.sco_db[index].esco.data;
+                return (BTM_SUCCESS);
+            }
+        }
+    }
+
+#endif
+
+    BTM_TRACE_API("BTM_ReadEScoLinkParms cannot find the SCO index!");
+    memset(p_parms, 0, sizeof(tBTM_ESCO_DATA));
+    return (BTM_WRONG_MODE);
+}
+
+/*******************************************************************************
+**
+** Function         BTM_ChangeEScoLinkParms
+**
+** Description      This function requests renegotiation of the parameters on
+**                  the current eSCO Link.  If any of the changes are accepted
+**                  by the controllers, the BTM_ESCO_CHG_EVT event is sent in
+**                  the tBTM_ESCO_CBACK function with the current settings of
+**                  the link. The callback is registered through the call to
+**                  BTM_SetEScoMode.
+**
+**                  Note: If called over a SCO link (including 1.1 controller),
+**                        a change packet type request is sent out instead.
+**
+** Returns          BTM_CMD_STARTED if command is successfully initiated.
+**                  BTM_NO_RESOURCES - not enough resources to initiate command.
+**                  BTM_WRONG_MODE if no connection with a peer device or bad sco_inx.
+**
+*******************************************************************************/
+tBTM_STATUS BTM_ChangeEScoLinkParms (UINT16 sco_inx, tBTM_CHG_ESCO_PARAMS *p_parms)
+{
+#if (BTM_MAX_SCO_LINKS>0)
+    tBTM_ESCO_PARAMS *p_setup;
+    tSCO_CONN        *p_sco;
+    UINT16            temp_pkt_types;
+
+    /* Make sure sco handle is valid and on an active link */
+    if (sco_inx >= BTM_MAX_SCO_LINKS ||
+        btm_cb.sco_cb.sco_db[sco_inx].state != SCO_ST_CONNECTED)
+        return (BTM_WRONG_MODE);
+
+    p_sco = &btm_cb.sco_cb.sco_db[sco_inx];
+    p_setup = &p_sco->esco.setup;
+
+    /* If SCO connection OR eSCO not supported just send change packet types */
+    if (p_sco->esco.data.link_type == BTM_LINK_TYPE_SCO ||
+        !btm_cb.sco_cb.esco_supported)
+    {
+        p_setup->packet_types = p_parms->packet_types &
+            (btm_cb.btm_sco_pkt_types_supported & BTM_SCO_LINK_ONLY_MASK);
+
+
+        BTM_TRACE_API("BTM_ChangeEScoLinkParms -> SCO Link for handle 0x%04x, pkt 0x%04x",
+                         p_sco->hci_handle, p_setup->packet_types);
+
+        if (!btsnd_hcic_change_conn_type (p_sco->hci_handle,
+                                     BTM_ESCO_2_SCO(p_setup->packet_types)))
+            return (BTM_NO_RESOURCES);
+    }
+    else
+    {
+        temp_pkt_types = (p_parms->packet_types & BTM_SCO_SUPPORTED_PKTS_MASK &
+                             btm_cb.btm_sco_pkt_types_supported);
+
+        /* OR in any exception packet types */
+        temp_pkt_types |= ((p_parms->packet_types & BTM_SCO_EXCEPTION_PKTS_MASK) |
+            (btm_cb.btm_sco_pkt_types_supported & BTM_SCO_EXCEPTION_PKTS_MASK));
+
+        BTM_TRACE_API("BTM_ChangeEScoLinkParms -> eSCO Link for handle 0x%04x", p_sco->hci_handle);
+        BTM_TRACE_API("      txbw 0x%x, rxbw 0x%x, lat 0x%x, voice 0x%x, retrans 0x%02x, pkt 0x%04x",
+                         p_setup->tx_bw, p_setup->rx_bw, p_parms->max_latency,
+                         p_setup->voice_contfmt, p_parms->retrans_effort, temp_pkt_types);
+
+        /* When changing an existing link, only change latency, retrans, and pkts */
+        if (!btsnd_hcic_setup_esco_conn(p_sco->hci_handle, p_setup->tx_bw,
+                                        p_setup->rx_bw, p_parms->max_latency,
+                                        p_setup->voice_contfmt,
+                                        p_parms->retrans_effort,
+                                        temp_pkt_types))
+            return (BTM_NO_RESOURCES);
+        else
+            p_parms->packet_types = temp_pkt_types;
+    }
+
+    return (BTM_CMD_STARTED);
+#else
+    return (BTM_WRONG_MODE);
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         BTM_EScoConnRsp
+**
+** Description      This function is called upon receipt of an (e)SCO connection
+**                  request event (BTM_ESCO_CONN_REQ_EVT) to accept or reject
+**                  the request. Parameters used to negotiate eSCO links.
+**                  If p_parms is NULL, then values set through BTM_SetEScoMode
+**                  are used.
+**                  If the link type of the incoming request is SCO, then only
+**                  the tx_bw, max_latency, content format, and packet_types are
+**                  valid.  The hci_status parameter should be
+**                  ([0x0] to accept, [0x0d..0x0f] to reject)
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTM_EScoConnRsp (UINT16 sco_inx, UINT8 hci_status, tBTM_ESCO_PARAMS *p_parms)
+{
+#if (BTM_MAX_SCO_LINKS>0)
+    if (sco_inx < BTM_MAX_SCO_LINKS &&
+        btm_cb.sco_cb.sco_db[sco_inx].state == SCO_ST_W4_CONN_RSP)
+    {
+        btm_esco_conn_rsp(sco_inx, hci_status,
+                          btm_cb.sco_cb.sco_db[sco_inx].esco.data.bd_addr,
+                          p_parms);
+    }
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         btm_read_def_esco_mode
+**
+** Description      This function copies the current default esco settings into
+**                  the return buffer.
+**
+** Returns          tBTM_SCO_TYPE
+**
+*******************************************************************************/
+tBTM_SCO_TYPE btm_read_def_esco_mode (tBTM_ESCO_PARAMS *p_parms)
+{
+#if (BTM_MAX_SCO_LINKS>0)
+    *p_parms = btm_cb.sco_cb.def_esco_parms;
+    return btm_cb.sco_cb.desired_sco_mode;
+#else
+    return BTM_LINK_TYPE_SCO;
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         btm_esco_proc_conn_chg
+**
+** Description      This function is called by BTIF when an SCO connection
+**                  is changed.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_esco_proc_conn_chg (UINT8 status, UINT16 handle, UINT8 tx_interval,
+                             UINT8 retrans_window, UINT16 rx_pkt_len,
+                             UINT16 tx_pkt_len)
+{
+#if (BTM_MAX_SCO_LINKS>0)
+    tSCO_CONN               *p = &btm_cb.sco_cb.sco_db[0];
+    tBTM_CHG_ESCO_EVT_DATA   data;
+    UINT16                   xx;
+
+    BTM_TRACE_EVENT("btm_esco_proc_conn_chg -> handle 0x%04x, status 0x%02x",
+                      handle, status);
+
+    for (xx = 0; xx < BTM_MAX_SCO_LINKS; xx++, p++)
+    {
+        if (p->state == SCO_ST_CONNECTED && handle == p->hci_handle)
+        {
+            /* If upper layer wants notification */
+            if (p->esco.p_esco_cback)
+            {
+                memcpy(data.bd_addr, p->esco.data.bd_addr, BD_ADDR_LEN);
+                data.hci_status = status;
+                data.sco_inx = xx;
+                data.rx_pkt_len = p->esco.data.rx_pkt_len = rx_pkt_len;
+                data.tx_pkt_len = p->esco.data.tx_pkt_len = tx_pkt_len;
+                data.tx_interval = p->esco.data.tx_interval = tx_interval;
+                data.retrans_window = p->esco.data.retrans_window = retrans_window;
+
+                (*p->esco.p_esco_cback)(BTM_ESCO_CHG_EVT,
+                                        (tBTM_ESCO_EVT_DATA *)&data);
+            }
+            return;
+        }
+    }
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         btm_is_sco_active
+**
+** Description      This function is called to see if a SCO handle is already in
+**                  use.
+**
+** Returns          BOOLEAN
+**
+*******************************************************************************/
+BOOLEAN btm_is_sco_active (UINT16 handle)
+{
+#if (BTM_MAX_SCO_LINKS>0)
+    UINT16     xx;
+    tSCO_CONN *p = &btm_cb.sco_cb.sco_db[0];
+
+    for (xx = 0; xx < BTM_MAX_SCO_LINKS; xx++, p++)
+    {
+        if (handle == p->hci_handle && p->state == SCO_ST_CONNECTED)
+            return (TRUE);
+    }
+#endif
+    return (FALSE);
+}
+
+/*******************************************************************************
+**
+** Function         BTM_GetNumScoLinks
+**
+** Description      This function returns the number of active sco links.
+**
+** Returns          UINT8
+**
+*******************************************************************************/
+UINT8 BTM_GetNumScoLinks (void)
+{
+#if (BTM_MAX_SCO_LINKS>0)
+    tSCO_CONN *p = &btm_cb.sco_cb.sco_db[0];
+    UINT16     xx;
+    UINT8      num_scos = 0;
+
+    for (xx = 0; xx < BTM_MAX_SCO_LINKS; xx++, p++)
+    {
+        switch (p->state)
+        {
+        case SCO_ST_W4_CONN_RSP:
+        case SCO_ST_CONNECTING:
+        case SCO_ST_CONNECTED:
+        case SCO_ST_DISCONNECTING:
+        case SCO_ST_PEND_UNPARK:
+            num_scos++;
+        }
+    }
+    return (num_scos);
+#else
+    return (0);
+#endif
+}
+
+
+/*******************************************************************************
+**
+** Function         btm_is_sco_active_by_bdaddr
+**
+** Description      This function is called to see if a SCO active to a bd address.
+**
+** Returns          BOOLEAN
+**
+*******************************************************************************/
+BOOLEAN btm_is_sco_active_by_bdaddr (BD_ADDR remote_bda)
+{
+#if (BTM_MAX_SCO_LINKS>0)
+    UINT8 xx;
+    tSCO_CONN *p = &btm_cb.sco_cb.sco_db[0];
+
+    /* If any SCO is being established to the remote BD address, refuse this */
+    for (xx = 0; xx < BTM_MAX_SCO_LINKS; xx++, p++)
+    {
+        if ((!memcmp (p->esco.data.bd_addr, remote_bda, BD_ADDR_LEN)) && (p->state == SCO_ST_CONNECTED))
+        {
+            return (TRUE);
+        }
+    }
+#endif
+    return (FALSE);
+}
+#else   /* SCO_EXCLUDED == TRUE (Link in stubs) */
+
+tBTM_STATUS BTM_CreateSco (BD_ADDR remote_bda, BOOLEAN is_orig,
+                           UINT16 pkt_types, UINT16 *p_sco_inx,
+                           tBTM_SCO_CB *p_conn_cb,
+                           tBTM_SCO_CB *p_disc_cb) {return (BTM_NO_RESOURCES);}
+tBTM_STATUS BTM_RemoveSco (UINT16 sco_inx) {return (BTM_NO_RESOURCES);}
+tBTM_STATUS BTM_SetScoPacketTypes (UINT16 sco_inx, UINT16 pkt_types) {return (BTM_NO_RESOURCES);}
+UINT16 BTM_ReadScoPacketTypes (UINT16 sco_inx) {return (0);}
+UINT16 BTM_ReadDeviceScoPacketTypes (void) {return (0);}
+UINT16 BTM_ReadScoHandle (UINT16 sco_inx) {return (BTM_INVALID_HCI_HANDLE);}
+UINT8 *BTM_ReadScoBdAddr(UINT16 sco_inx) {return((UINT8 *) NULL);}
+UINT16 BTM_ReadScoDiscReason (void) {return (BTM_INVALID_SCO_DISC_REASON);}
+tBTM_STATUS BTM_SetEScoMode (tBTM_SCO_TYPE sco_mode, tBTM_ESCO_PARAMS *p_parms) {return (BTM_MODE_UNSUPPORTED);}
+tBTM_STATUS BTM_RegForEScoEvts (UINT16 sco_inx, tBTM_ESCO_CBACK *p_esco_cback) { return (BTM_ILLEGAL_VALUE);}
+tBTM_STATUS BTM_ReadEScoLinkParms (UINT16 sco_inx, tBTM_ESCO_DATA *p_parms) { return (BTM_MODE_UNSUPPORTED);}
+tBTM_STATUS BTM_ChangeEScoLinkParms (UINT16 sco_inx, tBTM_CHG_ESCO_PARAMS *p_parms) { return (BTM_MODE_UNSUPPORTED);}
+void BTM_EScoConnRsp (UINT16 sco_inx, UINT8 hci_status, tBTM_ESCO_PARAMS *p_parms) {}
+UINT8 BTM_GetNumScoLinks (void)  {return (0);}
+
+#endif /* If SCO is being used */
diff --git a/rtkbt/code/bt/stack/btm/btm_sec.c b/rtkbt/code/bt/stack/btm/btm_sec.c
new file mode 100755
index 0000000..2365288
--- /dev/null
+++ b/rtkbt/code/bt/stack/btm/btm_sec.c
@@ -0,0 +1,6350 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains functions for the Bluetooth Security Manager
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_btm_sec"
+
+#include <stdarg.h>
+#include <string.h>
+
+#include "device/include/controller.h"
+#include "osi/include/log.h"
+#include "osi/include/time.h"
+
+#include "bt_types.h"
+#include "bt_utils.h"
+#include "btm_int.h"
+#include "btu.h"
+#include "hcimsgs.h"
+#include "l2c_int.h"
+
+#ifdef BLUETOOTH_RTK_COEX
+#include "rtk_parse.h"
+#endif
+#if (BT_USE_TRACES == TRUE && BT_TRACE_VERBOSE == FALSE)
+/* needed for sprintf() */
+#include <stdio.h>
+#endif
+
+#if BLE_INCLUDED == TRUE
+    #include "gatt_int.h"
+#endif
+
+#define BTM_SEC_MAX_COLLISION_DELAY     (5000)
+
+extern fixed_queue_t *btu_general_alarm_queue;
+
+#ifdef APPL_AUTH_WRITE_EXCEPTION
+BOOLEAN (APPL_AUTH_WRITE_EXCEPTION)(BD_ADDR bd_addr);
+#endif
+
+/********************************************************************************
+**              L O C A L    F U N C T I O N     P R O T O T Y P E S            *
+*********************************************************************************/
+tBTM_SEC_SERV_REC *btm_sec_find_first_serv (BOOLEAN is_originator, UINT16 psm);
+static tBTM_SEC_SERV_REC *btm_sec_find_next_serv (tBTM_SEC_SERV_REC *p_cur);
+static tBTM_SEC_SERV_REC *btm_sec_find_mx_serv (UINT8 is_originator, UINT16 psm,
+                                                UINT32 mx_proto_id,
+                                                UINT32 mx_chan_id);
+
+static tBTM_STATUS btm_sec_execute_procedure (tBTM_SEC_DEV_REC *p_dev_rec);
+static BOOLEAN  btm_sec_start_get_name (tBTM_SEC_DEV_REC *p_dev_rec);
+static BOOLEAN  btm_sec_start_authentication (tBTM_SEC_DEV_REC *p_dev_rec);
+static BOOLEAN  btm_sec_start_encryption (tBTM_SEC_DEV_REC *p_dev_rec);
+static void     btm_sec_collision_timeout(void *data);
+static void     btm_restore_mode(void);
+static void     btm_sec_pairing_timeout(void *data);
+static tBTM_STATUS btm_sec_dd_create_conn (tBTM_SEC_DEV_REC *p_dev_rec);
+static void     btm_sec_change_pairing_state (tBTM_PAIRING_STATE new_state);
+
+#if (BT_USE_TRACES == TRUE)
+static char     *btm_pair_state_descr (tBTM_PAIRING_STATE state);
+#endif
+
+static void     btm_sec_check_pending_reqs(void);
+static BOOLEAN  btm_sec_queue_mx_request (BD_ADDR bd_addr,  UINT16 psm,  BOOLEAN is_orig,
+                                          UINT32 mx_proto_id, UINT32 mx_chan_id,
+                                          tBTM_SEC_CALLBACK *p_callback, void *p_ref_data);
+static void     btm_sec_bond_cancel_complete (void);
+static void     btm_send_link_key_notif (tBTM_SEC_DEV_REC *p_dev_rec);
+static BOOLEAN  btm_sec_check_prefetch_pin (tBTM_SEC_DEV_REC  *p_dev_rec);
+
+static UINT8    btm_sec_start_authorization (tBTM_SEC_DEV_REC *p_dev_rec);
+BOOLEAN         btm_sec_are_all_trusted(UINT32 p_mask[]);
+
+static tBTM_STATUS btm_sec_send_hci_disconnect (tBTM_SEC_DEV_REC *p_dev_rec, UINT8 reason, UINT16 conn_handle);
+UINT8           btm_sec_start_role_switch (tBTM_SEC_DEV_REC *p_dev_rec);
+tBTM_SEC_DEV_REC *btm_sec_find_dev_by_sec_state (UINT8 state);
+
+static BOOLEAN  btm_sec_set_security_level ( CONNECTION_TYPE conn_type, char *p_name, UINT8 service_id,
+                                            UINT16 sec_level, UINT16 psm, UINT32 mx_proto_id,
+                                            UINT32 mx_chan_id);
+
+static BOOLEAN btm_dev_authenticated(tBTM_SEC_DEV_REC *p_dev_rec);
+static BOOLEAN btm_dev_encrypted(tBTM_SEC_DEV_REC *p_dev_rec);
+static BOOLEAN btm_dev_authorized(tBTM_SEC_DEV_REC *p_dev_rec);
+static BOOLEAN btm_serv_trusted(tBTM_SEC_DEV_REC *p_dev_rec, tBTM_SEC_SERV_REC *p_serv_rec);
+static BOOLEAN btm_sec_is_serv_level0 (UINT16 psm);
+static UINT16  btm_sec_set_serv_level4_flags (UINT16 cur_security, BOOLEAN is_originator);
+
+static BOOLEAN btm_sec_queue_encrypt_request  (BD_ADDR bd_addr, tBT_TRANSPORT transport,
+                                         tBTM_SEC_CALLBACK *p_callback, void *p_ref_data,
+                                         tBTM_BLE_SEC_ACT sec_act);
+static void btm_sec_check_pending_enc_req (tBTM_SEC_DEV_REC  *p_dev_rec, tBT_TRANSPORT transport,
+                                            UINT8 encr_enable);
+
+static BOOLEAN btm_sec_use_smp_br_chnl(tBTM_SEC_DEV_REC *p_dev_rec);
+static BOOLEAN btm_sec_is_master(tBTM_SEC_DEV_REC *p_dev_rec);
+
+/* TRUE - authenticated link key is possible */
+static const BOOLEAN btm_sec_io_map [BTM_IO_CAP_MAX][BTM_IO_CAP_MAX] =
+{
+    /*   OUT,    IO,     IN,     NONE */
+/* OUT  */ {FALSE,  FALSE,  TRUE,   FALSE},
+/* IO   */ {FALSE,  TRUE,   TRUE,   FALSE},
+/* IN   */ {TRUE,   TRUE,   TRUE,   FALSE},
+/* NONE */ {FALSE,  FALSE,  FALSE,  FALSE}
+};
+/*  BTM_IO_CAP_OUT      0   DisplayOnly */
+/*  BTM_IO_CAP_IO       1   DisplayYesNo */
+/*  BTM_IO_CAP_IN       2   KeyboardOnly */
+/*  BTM_IO_CAP_NONE     3   NoInputNoOutput */
+
+/*******************************************************************************
+**
+** Function         btm_dev_authenticated
+**
+** Description      check device is authenticated
+**
+** Returns          BOOLEAN TRUE or FALSE
+**
+*******************************************************************************/
+static BOOLEAN btm_dev_authenticated (tBTM_SEC_DEV_REC *p_dev_rec)
+{
+    if(p_dev_rec->sec_flags & BTM_SEC_AUTHENTICATED)
+    {
+        return(TRUE);
+    }
+    return(FALSE);
+}
+
+/*******************************************************************************
+**
+** Function         btm_dev_encrypted
+**
+** Description      check device is encrypted
+**
+** Returns          BOOLEAN TRUE or FALSE
+**
+*******************************************************************************/
+static BOOLEAN btm_dev_encrypted (tBTM_SEC_DEV_REC *p_dev_rec)
+{
+    if(p_dev_rec->sec_flags & BTM_SEC_ENCRYPTED)
+    {
+        return(TRUE);
+    }
+    return(FALSE);
+}
+
+/*******************************************************************************
+**
+** Function         btm_dev_authorized
+**
+** Description      check device is authorized
+**
+** Returns          BOOLEAN TRUE or FALSE
+**
+*******************************************************************************/
+static BOOLEAN btm_dev_authorized (tBTM_SEC_DEV_REC *p_dev_rec)
+{
+    if(p_dev_rec->sec_flags & BTM_SEC_AUTHORIZED)
+    {
+        return(TRUE);
+    }
+    return(FALSE);
+}
+
+/*******************************************************************************
+**
+** Function         btm_dev_16_digit_authenticated
+**
+** Description      check device is authenticated by using 16 digit pin or MITM
+**
+** Returns          BOOLEAN TRUE or FALSE
+**
+*******************************************************************************/
+static BOOLEAN btm_dev_16_digit_authenticated(tBTM_SEC_DEV_REC *p_dev_rec)
+{
+    // BTM_SEC_16_DIGIT_PIN_AUTHED is set if MITM or 16 digit pin is used
+    if(p_dev_rec->sec_flags & BTM_SEC_16_DIGIT_PIN_AUTHED)
+    {
+        return(TRUE);
+    }
+    return(FALSE);
+}
+
+/*******************************************************************************
+**
+** Function         btm_serv_trusted
+**
+** Description      check service is trusted
+**
+** Returns          BOOLEAN TRUE or FALSE
+**
+*******************************************************************************/
+static BOOLEAN btm_serv_trusted(tBTM_SEC_DEV_REC *p_dev_rec, tBTM_SEC_SERV_REC *p_serv_rec)
+{
+    if(BTM_SEC_IS_SERVICE_TRUSTED(p_dev_rec->trusted_mask, p_serv_rec->service_id))
+    {
+        return(TRUE);
+    }
+    return(FALSE);
+}
+
+/*******************************************************************************
+**
+** Function         BTM_SecRegister
+**
+** Description      Application manager calls this function to register for
+**                  security services.  There can be one and only one application
+**                  saving link keys.  BTM allows only first registration.
+**
+** Returns          TRUE if registered OK, else FALSE
+**
+*******************************************************************************/
+BOOLEAN BTM_SecRegister(tBTM_APPL_INFO *p_cb_info)
+{
+#if BLE_INCLUDED == TRUE
+    BT_OCTET16      temp_value = {0};
+#endif
+
+    BTM_TRACE_EVENT("%s application registered", __func__);
+
+#if BLE_INCLUDED == TRUE && SMP_INCLUDED == TRUE
+    LOG_INFO(LOG_TAG, "%s p_cb_info->p_le_callback == 0x%p", __func__, p_cb_info->p_le_callback);
+    if (p_cb_info->p_le_callback)
+    {
+#if SMP_INCLUDED == TRUE
+      BTM_TRACE_EVENT("%s SMP_Register( btm_proc_smp_cback )", __func__);
+      SMP_Register(btm_proc_smp_cback);
+#endif
+      /* if no IR is loaded, need to regenerate all the keys */
+      if (memcmp(btm_cb.devcb.id_keys.ir, &temp_value, sizeof(BT_OCTET16)) == 0)
+      {
+        btm_ble_reset_id();
+      }
+    }
+    else
+    {
+      LOG_WARN(LOG_TAG, "%s p_cb_info->p_le_callback == NULL", __func__);
+    }
+#endif
+
+    btm_cb.api = *p_cb_info;
+#if BLE_INCLUDED == TRUE && SMP_INCLUDED == TRUE
+     LOG_INFO(LOG_TAG, "%s btm_cb.api.p_le_callback = 0x%p ", __func__, btm_cb.api.p_le_callback);
+#endif
+    BTM_TRACE_EVENT("%s application registered", __func__);
+    return(TRUE);
+}
+
+/*******************************************************************************
+**
+** Function         BTM_SecRegisterLinkKeyNotificationCallback
+**
+** Description      Application manager calls this function to register for
+**                  link key notification.  When there is nobody registered
+**                  we should avoid changing link key
+**
+** Returns          TRUE if registered OK, else FALSE
+**
+*******************************************************************************/
+BOOLEAN BTM_SecRegisterLinkKeyNotificationCallback (tBTM_LINK_KEY_CALLBACK *p_callback)
+{
+    btm_cb.api.p_link_key_callback = p_callback;
+    return TRUE;
+}
+
+/*******************************************************************************
+**
+** Function         BTM_SecAddRmtNameNotifyCallback
+**
+** Description      Any profile can register to be notified when name of the
+**                  remote device is resolved.
+**
+** Returns          TRUE if registered OK, else FALSE
+**
+*******************************************************************************/
+BOOLEAN  BTM_SecAddRmtNameNotifyCallback (tBTM_RMT_NAME_CALLBACK *p_callback)
+{
+    int i;
+
+    for (i = 0; i < BTM_SEC_MAX_RMT_NAME_CALLBACKS; i++)
+    {
+        if (btm_cb.p_rmt_name_callback[i] == NULL)
+        {
+            btm_cb.p_rmt_name_callback[i] = p_callback;
+            return(TRUE);
+        }
+    }
+
+    return(FALSE);
+}
+
+/*******************************************************************************
+**
+** Function         BTM_SecDeleteRmtNameNotifyCallback
+**
+** Description      Any profile can deregister notification when a new Link Key
+**                  is generated per connection.
+**
+** Returns          TRUE if OK, else FALSE
+**
+*******************************************************************************/
+BOOLEAN  BTM_SecDeleteRmtNameNotifyCallback (tBTM_RMT_NAME_CALLBACK *p_callback)
+{
+    int i;
+
+    for (i = 0; i < BTM_SEC_MAX_RMT_NAME_CALLBACKS; i++)
+    {
+        if (btm_cb.p_rmt_name_callback[i] == p_callback)
+        {
+            btm_cb.p_rmt_name_callback[i] = NULL;
+            return(TRUE);
+        }
+    }
+
+    return(FALSE);
+}
+
+/*******************************************************************************
+**
+** Function         BTM_GetSecurityFlags
+**
+** Description      Get security flags for the device
+**
+** Returns          BOOLEAN TRUE or FALSE is device found
+**
+*******************************************************************************/
+BOOLEAN BTM_GetSecurityFlags (BD_ADDR bd_addr, UINT8 * p_sec_flags)
+{
+    tBTM_SEC_DEV_REC *p_dev_rec;
+
+    if ((p_dev_rec = btm_find_dev (bd_addr)) != NULL)
+    {
+        *p_sec_flags = (UINT8) p_dev_rec->sec_flags;
+        return(TRUE);
+    }
+    BTM_TRACE_ERROR ("BTM_GetSecurityFlags false");
+    return(FALSE);
+}
+
+/*******************************************************************************
+**
+** Function         BTM_GetSecurityFlagsByTransport
+**
+** Description      Get security flags for the device on a particular transport
+**
+** Returns          BOOLEAN TRUE or FALSE is device found
+**
+*******************************************************************************/
+BOOLEAN BTM_GetSecurityFlagsByTransport (BD_ADDR bd_addr, UINT8 * p_sec_flags,
+                                                tBT_TRANSPORT transport)
+{
+    tBTM_SEC_DEV_REC *p_dev_rec;
+
+    if ((p_dev_rec = btm_find_dev (bd_addr)) != NULL)
+    {
+        if (transport == BT_TRANSPORT_BR_EDR)
+            *p_sec_flags = (UINT8) p_dev_rec->sec_flags;
+        else
+            *p_sec_flags = (UINT8) (p_dev_rec->sec_flags >> 8);
+
+        return(TRUE);
+    }
+    BTM_TRACE_ERROR ("BTM_GetSecurityFlags false");
+    return(FALSE);
+}
+
+/*******************************************************************************
+**
+** Function         BTM_SetPinType
+**
+** Description      Set PIN type for the device.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTM_SetPinType (UINT8 pin_type, PIN_CODE pin_code, UINT8 pin_code_len)
+{
+    BTM_TRACE_API ("BTM_SetPinType: pin type %d [variable-0, fixed-1], code %s, length %d",
+                    pin_type, (char *) pin_code, pin_code_len);
+
+    /* If device is not up security mode will be set as a part of startup */
+    if ( (btm_cb.cfg.pin_type != pin_type)
+         && controller_get_interface()->get_is_ready() )
+    {
+        btsnd_hcic_write_pin_type (pin_type);
+    }
+
+    btm_cb.cfg.pin_type     = pin_type;
+    btm_cb.cfg.pin_code_len = pin_code_len;
+    memcpy (btm_cb.cfg.pin_code, pin_code, pin_code_len);
+}
+
+/*******************************************************************************
+**
+** Function         BTM_SetPairableMode
+**
+** Description      Enable or disable pairing
+**
+** Parameters       allow_pairing - (TRUE or FALSE) whether or not the device
+**                      allows pairing.
+**                  connect_only_paired - (TRUE or FALSE) whether or not to
+**                      only allow paired devices to connect.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTM_SetPairableMode (BOOLEAN allow_pairing, BOOLEAN connect_only_paired)
+{
+    BTM_TRACE_API ("BTM_SetPairableMode()  allow_pairing: %u   connect_only_paired: %u", allow_pairing, connect_only_paired);
+
+    btm_cb.pairing_disabled    = !allow_pairing;
+    btm_cb.connect_only_paired = connect_only_paired;
+}
+
+/*******************************************************************************
+**
+** Function         BTM_SetSecureConnectionsOnly
+**
+** Description      Enable or disable default treatment for Mode 4 Level 0 services
+**
+** Parameter        secure_connections_only_mode - (TRUE or FALSE) whether or not the device
+**                  TRUE means that the device should treat Mode 4 Level 0 services as
+**                  services of other levels. (Secure_connections_only_mode)
+**                  FALSE means that the device should provide default treatment for
+**                  Mode 4 Level 0 services.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTM_SetSecureConnectionsOnly (BOOLEAN secure_connections_only_mode)
+{
+    BTM_TRACE_API("%s: Mode : %u", __FUNCTION__,
+                   secure_connections_only_mode);
+
+    btm_cb.devcb.secure_connections_only = secure_connections_only_mode;
+    btm_cb.security_mode = BTM_SEC_MODE_SC;
+}
+#define BTM_NO_AVAIL_SEC_SERVICES   ((UINT16) 0xffff)
+
+/*******************************************************************************
+**
+** Function         BTM_SetSecurityLevel
+**
+** Description      Register service security level with Security Manager
+**
+** Parameters:      is_originator - TRUE if originating the connection, FALSE if not
+**                  p_name      - Name of the service relevant only if
+**                                authorization will show this name to user. ignored
+**                                if BTM_SEC_SERVICE_NAME_LEN is 0.
+**                  service_id  - service ID for the service passed to authorization callback
+**                  sec_level   - bit mask of the security features
+**                  psm         - L2CAP PSM
+**                  mx_proto_id - protocol ID of multiplexing proto below
+**                  mx_chan_id  - channel ID of multiplexing proto below
+**
+** Returns          TRUE if registered OK, else FALSE
+**
+*******************************************************************************/
+BOOLEAN BTM_SetSecurityLevel (BOOLEAN is_originator, char *p_name, UINT8 service_id,
+                              UINT16 sec_level, UINT16 psm, UINT32 mx_proto_id,
+                              UINT32 mx_chan_id)
+{
+#if (L2CAP_UCD_INCLUDED == TRUE)
+    CONNECTION_TYPE conn_type;
+
+    if (is_originator)
+        conn_type = CONN_ORIENT_ORIG;
+    else
+        conn_type = CONN_ORIENT_TERM;
+
+    return(btm_sec_set_security_level (conn_type, p_name, service_id,
+                                       sec_level, psm, mx_proto_id, mx_chan_id));
+#else
+    return(btm_sec_set_security_level (is_originator, p_name, service_id,
+                                       sec_level, psm, mx_proto_id, mx_chan_id));
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         btm_sec_set_security_level
+**
+** Description      Register service security level with Security Manager
+**
+** Parameters:      conn_type   - TRUE if originating the connection, FALSE if not
+**                  p_name      - Name of the service relevant only if
+**                                authorization will show this name to user. ignored
+**                                if BTM_SEC_SERVICE_NAME_LEN is 0.
+**                  service_id  - service ID for the service passed to authorization callback
+**                  sec_level   - bit mask of the security features
+**                  psm         - L2CAP PSM
+**                  mx_proto_id - protocol ID of multiplexing proto below
+**                  mx_chan_id  - channel ID of multiplexing proto below
+**
+** Returns          TRUE if registered OK, else FALSE
+**
+*******************************************************************************/
+static BOOLEAN btm_sec_set_security_level (CONNECTION_TYPE conn_type, char *p_name, UINT8 service_id,
+                                           UINT16 sec_level, UINT16 psm, UINT32 mx_proto_id,
+                                           UINT32 mx_chan_id)
+{
+    tBTM_SEC_SERV_REC   *p_srec;
+    UINT16               index;
+    UINT16               first_unused_record = BTM_NO_AVAIL_SEC_SERVICES;
+    BOOLEAN              record_allocated = FALSE;
+    BOOLEAN              is_originator;
+#if (L2CAP_UCD_INCLUDED == TRUE)
+    BOOLEAN              is_ucd;
+
+    if (conn_type & CONNECTION_TYPE_ORIG_MASK)
+        is_originator = TRUE;
+    else
+        is_originator = FALSE;
+
+    if (conn_type & CONNECTION_TYPE_CONNLESS_MASK )
+    {
+        is_ucd = TRUE;
+    }
+    else
+    {
+        is_ucd = FALSE;
+    }
+#else
+    is_originator = conn_type;
+#endif
+
+    BTM_TRACE_API("%s : sec: 0x%x", __func__, sec_level);
+
+    /* See if the record can be reused (same service name, psm, mx_proto_id,
+       service_id, and mx_chan_id), or obtain the next unused record */
+
+    p_srec = &btm_cb.sec_serv_rec[0];
+
+    for (index = 0; index < BTM_SEC_MAX_SERVICE_RECORDS; index++, p_srec++)
+    {
+        /* Check if there is already a record for this service */
+        if (p_srec->security_flags & BTM_SEC_IN_USE)
+        {
+#if BTM_SEC_SERVICE_NAME_LEN > 0
+            if (p_srec->psm == psm                  &&
+                p_srec->mx_proto_id == mx_proto_id  &&
+                service_id == p_srec->service_id    &&
+                p_name                              &&
+                (!strncmp (p_name, (char *) p_srec->orig_service_name,
+                           BTM_SEC_SERVICE_NAME_LEN) ||
+                 !strncmp (p_name, (char *) p_srec->term_service_name,
+                           BTM_SEC_SERVICE_NAME_LEN)))
+#else
+            if (p_srec->psm == psm                  &&
+                p_srec->mx_proto_id == mx_proto_id  &&
+                service_id == p_srec->service_id)
+#endif
+            {
+                record_allocated = TRUE;
+                break;
+            }
+        }
+        /* Mark the first available service record */
+        else if (!record_allocated)
+        {
+            memset (p_srec, 0, sizeof(tBTM_SEC_SERV_REC));
+            record_allocated = TRUE;
+            first_unused_record = index;
+        }
+    }
+
+    if (!record_allocated)
+    {
+        BTM_TRACE_WARNING("BTM_SEC_REG: Out of Service Records (%d)",  BTM_SEC_MAX_SERVICE_RECORDS);
+        return(record_allocated);
+    }
+
+    /* Process the request if service record is valid */
+    /* If a duplicate service wasn't found, use the first available */
+    if (index >= BTM_SEC_MAX_SERVICE_RECORDS)
+    {
+        index = first_unused_record;
+        p_srec = &btm_cb.sec_serv_rec[index];
+    }
+
+    p_srec->psm         = psm;
+    p_srec->service_id  = service_id;
+    p_srec->mx_proto_id = mx_proto_id;
+
+    if (is_originator)
+    {
+        p_srec->orig_mx_chan_id = mx_chan_id;
+#if BTM_SEC_SERVICE_NAME_LEN > 0
+        strlcpy ((char *)p_srec->orig_service_name, p_name, BTM_SEC_SERVICE_NAME_LEN);
+#endif
+        /* clear out the old setting, just in case it exists */
+#if (L2CAP_UCD_INCLUDED == TRUE)
+        if ( is_ucd )
+        {
+            p_srec->ucd_security_flags &=
+            ~(BTM_SEC_OUT_AUTHORIZE | BTM_SEC_OUT_ENCRYPT    | BTM_SEC_OUT_AUTHENTICATE | BTM_SEC_OUT_MITM |
+              BTM_SEC_FORCE_MASTER | BTM_SEC_ATTEMPT_MASTER | BTM_SEC_FORCE_SLAVE | BTM_SEC_ATTEMPT_SLAVE);
+        }
+        else
+#endif
+        {
+            p_srec->security_flags &=
+            ~(BTM_SEC_OUT_AUTHORIZE | BTM_SEC_OUT_ENCRYPT    | BTM_SEC_OUT_AUTHENTICATE | BTM_SEC_OUT_MITM |
+              BTM_SEC_FORCE_MASTER | BTM_SEC_ATTEMPT_MASTER | BTM_SEC_FORCE_SLAVE | BTM_SEC_ATTEMPT_SLAVE);
+        }
+
+        /* Parameter validation.  Originator should not set requirements for incoming connections */
+        sec_level &= ~(BTM_SEC_IN_AUTHORIZE | BTM_SEC_IN_ENCRYPT | BTM_SEC_IN_AUTHENTICATE
+                | BTM_SEC_IN_MITM | BTM_SEC_IN_MIN_16_DIGIT_PIN );
+
+        if (btm_cb.security_mode == BTM_SEC_MODE_SP ||
+            btm_cb.security_mode == BTM_SEC_MODE_SP_DEBUG ||
+            btm_cb.security_mode == BTM_SEC_MODE_SC)
+        {
+            if (sec_level & BTM_SEC_OUT_AUTHENTICATE)
+                sec_level |= BTM_SEC_OUT_MITM;
+        }
+
+        /* Make sure the authenticate bit is set, when encrypt bit is set */
+        if (sec_level & BTM_SEC_OUT_ENCRYPT)
+            sec_level |= BTM_SEC_OUT_AUTHENTICATE;
+
+        /* outgoing connections usually set the security level right before
+         * the connection is initiated.
+         * set it to be the outgoing service */
+#if (L2CAP_UCD_INCLUDED == TRUE)
+        if ( is_ucd == FALSE )
+#endif
+        {
+            btm_cb.p_out_serv = p_srec;
+        }
+    }
+    else
+    {
+        p_srec->term_mx_chan_id = mx_chan_id;
+#if BTM_SEC_SERVICE_NAME_LEN > 0
+        strlcpy ((char *)p_srec->term_service_name, p_name, BTM_SEC_SERVICE_NAME_LEN);
+#endif
+        /* clear out the old setting, just in case it exists */
+#if (L2CAP_UCD_INCLUDED == TRUE)
+        if ( is_ucd )
+        {
+            p_srec->ucd_security_flags &=
+            ~(BTM_SEC_IN_AUTHORIZE | BTM_SEC_IN_ENCRYPT     | BTM_SEC_IN_AUTHENTICATE | BTM_SEC_IN_MITM |
+              BTM_SEC_FORCE_MASTER | BTM_SEC_ATTEMPT_MASTER | BTM_SEC_FORCE_SLAVE | BTM_SEC_ATTEMPT_SLAVE
+              | BTM_SEC_IN_MIN_16_DIGIT_PIN);
+        }
+        else
+#endif
+        {
+            p_srec->security_flags &=
+            ~(BTM_SEC_IN_AUTHORIZE | BTM_SEC_IN_ENCRYPT     | BTM_SEC_IN_AUTHENTICATE | BTM_SEC_IN_MITM |
+              BTM_SEC_FORCE_MASTER | BTM_SEC_ATTEMPT_MASTER | BTM_SEC_FORCE_SLAVE | BTM_SEC_ATTEMPT_SLAVE
+              | BTM_SEC_IN_MIN_16_DIGIT_PIN);
+        }
+
+        /* Parameter validation.  Acceptor should not set requirements for outgoing connections */
+        sec_level &= ~(BTM_SEC_OUT_AUTHORIZE | BTM_SEC_OUT_ENCRYPT | BTM_SEC_OUT_AUTHENTICATE | BTM_SEC_OUT_MITM);
+
+        if (btm_cb.security_mode == BTM_SEC_MODE_SP ||
+            btm_cb.security_mode == BTM_SEC_MODE_SP_DEBUG ||
+            btm_cb.security_mode == BTM_SEC_MODE_SC)
+        {
+            if (sec_level & BTM_SEC_IN_AUTHENTICATE)
+                sec_level |= BTM_SEC_IN_MITM;
+        }
+
+        /* Make sure the authenticate bit is set, when encrypt bit is set */
+        if (sec_level & BTM_SEC_IN_ENCRYPT)
+            sec_level |= BTM_SEC_IN_AUTHENTICATE;
+    }
+
+#if (L2CAP_UCD_INCLUDED == TRUE)
+    if ( is_ucd )
+    {
+        p_srec->security_flags     |= (UINT16)(BTM_SEC_IN_USE);
+        p_srec->ucd_security_flags |= (UINT16)(sec_level | BTM_SEC_IN_USE);
+    }
+    else
+    {
+        p_srec->security_flags |= (UINT16)(sec_level | BTM_SEC_IN_USE);
+    }
+
+    BTM_TRACE_API("BTM_SEC_REG[%d]: id %d, conn_type 0x%x, psm 0x%04x, proto_id %d, chan_id %d",
+                   index, service_id, conn_type, psm, mx_proto_id, mx_chan_id);
+
+    BTM_TRACE_API("               : security_flags: 0x%04x, ucd_security_flags: 0x%04x",
+                   p_srec->security_flags, p_srec->ucd_security_flags);
+
+#if BTM_SEC_SERVICE_NAME_LEN > 0
+    BTM_TRACE_API("               : service name [%s] (up to %d chars saved)",
+                   p_name, BTM_SEC_SERVICE_NAME_LEN);
+#endif
+#else
+    p_srec->security_flags |= (UINT16)(sec_level | BTM_SEC_IN_USE);
+
+    BTM_TRACE_API("BTM_SEC_REG[%d]: id %d, is_orig %d, psm 0x%04x, proto_id %d, chan_id %d",
+                   index, service_id, is_originator, psm, mx_proto_id, mx_chan_id);
+
+#if BTM_SEC_SERVICE_NAME_LEN > 0
+    BTM_TRACE_API("               : sec: 0x%x, service name [%s] (up to %d chars saved)",
+                   p_srec->security_flags, p_name, BTM_SEC_SERVICE_NAME_LEN);
+#endif
+#endif
+
+    return(record_allocated);
+}
+
+/*******************************************************************************
+**
+** Function         BTM_SecClrService
+**
+** Description      Removes specified service record(s) from the security database.
+**                  All service records with the specified name are removed.
+**                  Typically used only by devices with limited RAM so that it can
+**                  reuse an old security service record.
+**
+**                  Note: Unpredictable results may occur if a service is cleared
+**                      that is still in use by an application/profile.
+**
+** Parameters       Service ID - Id of the service to remove. ('0' removes all service
+**                          records (except SDP).
+**
+** Returns          Number of records that were freed.
+**
+*******************************************************************************/
+UINT8 BTM_SecClrService (UINT8 service_id)
+{
+    tBTM_SEC_SERV_REC   *p_srec = &btm_cb.sec_serv_rec[0];
+    UINT8   num_freed = 0;
+    int     i;
+
+    for (i = 0; i < BTM_SEC_MAX_SERVICE_RECORDS; i++, p_srec++)
+    {
+        /* Delete services with specified name (if in use and not SDP) */
+        if ((p_srec->security_flags & BTM_SEC_IN_USE) && (p_srec->psm != BT_PSM_SDP) &&
+            (!service_id || (service_id == p_srec->service_id)))
+        {
+            BTM_TRACE_API("BTM_SEC_CLR[%d]: id %d", i, service_id);
+            p_srec->security_flags = 0;
+#if (L2CAP_UCD_INCLUDED == TRUE)
+            p_srec->ucd_security_flags = 0;
+#endif
+            num_freed++;
+        }
+    }
+
+    return(num_freed);
+}
+
+/*******************************************************************************
+**
+** Function         btm_sec_clr_service_by_psm
+**
+** Description      Removes specified service record from the security database.
+**                  All service records with the specified psm are removed.
+**                  Typically used by L2CAP to free up the service record used
+**                  by dynamic PSM clients when the channel is closed.
+**                  The given psm must be a virtual psm.
+**
+** Parameters       Service ID - Id of the service to remove. ('0' removes all service
+**                          records (except SDP).
+**
+** Returns          Number of records that were freed.
+**
+*******************************************************************************/
+UINT8 btm_sec_clr_service_by_psm (UINT16 psm)
+{
+    tBTM_SEC_SERV_REC   *p_srec = &btm_cb.sec_serv_rec[0];
+    UINT8   num_freed = 0;
+    int     i;
+
+    for (i = 0; i < BTM_SEC_MAX_SERVICE_RECORDS; i++, p_srec++)
+    {
+        /* Delete services with specified name (if in use and not SDP) */
+        if ((p_srec->security_flags & BTM_SEC_IN_USE) && (p_srec->psm == psm) )
+        {
+            BTM_TRACE_API("BTM_SEC_CLR[%d]: id %d ", i, p_srec->service_id);
+            p_srec->security_flags = 0;
+            num_freed++;
+        }
+    }
+    BTM_TRACE_API("btm_sec_clr_service_by_psm psm:0x%x num_freed:%d", psm, num_freed);
+
+    return(num_freed);
+}
+
+/*******************************************************************************
+**
+** Function         btm_sec_clr_temp_auth_service
+**
+** Description      Removes specified device record's temporary authorization
+**                  flag from the security database.
+**
+** Parameters       Device address to be cleared
+**
+** Returns          void.
+**
+*******************************************************************************/
+void btm_sec_clr_temp_auth_service (BD_ADDR bda)
+{
+    tBTM_SEC_DEV_REC   *p_dev_rec;
+
+    if ((p_dev_rec = btm_find_dev (bda)) == NULL)
+    {
+        BTM_TRACE_WARNING ("btm_sec_clr_temp_auth_service() - no dev CB");
+        return;
+    }
+
+    /* Reset the temporary authorized flag so that next time (untrusted) service is accessed autorization will take place */
+    if (p_dev_rec->last_author_service_id != BTM_SEC_NO_LAST_SERVICE_ID && p_dev_rec->p_cur_service)
+    {
+        BTM_TRACE_DEBUG ("btm_sec_clr_auth_service_by_psm [clearing device: %02x:%02x:%02x:%02x:%02x:%02x]",
+                    bda[0], bda[1], bda[2], bda[3], bda[4], bda[5]);
+
+        p_dev_rec->last_author_service_id = BTM_SEC_NO_LAST_SERVICE_ID;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         BTM_PINCodeReply
+**
+** Description      This function is called after Security Manager submitted
+**                  PIN code request to the UI.
+**
+** Parameters:      bd_addr      - Address of the device for which PIN was requested
+**                  res          - result of the operation BTM_SUCCESS if success
+**                  pin_len      - length in bytes of the PIN Code
+**                  p_pin        - pointer to array with the PIN Code
+**                  trusted_mask - bitwise OR of trusted services (array of UINT32)
+**
+*******************************************************************************/
+void BTM_PINCodeReply (BD_ADDR bd_addr, UINT8 res, UINT8 pin_len, UINT8 *p_pin, UINT32 trusted_mask[])
+{
+    tBTM_SEC_DEV_REC *p_dev_rec;
+
+    BTM_TRACE_API ("BTM_PINCodeReply(): PairState: %s   PairFlags: 0x%02x  PinLen:%d  Result:%d",
+                    btm_pair_state_descr(btm_cb.pairing_state), btm_cb.pairing_flags, pin_len, res);
+
+    /* If timeout already expired or has been canceled, ignore the reply */
+    if (btm_cb.pairing_state != BTM_PAIR_STATE_WAIT_LOCAL_PIN)
+    {
+        BTM_TRACE_WARNING ("BTM_PINCodeReply() - Wrong State: %d", btm_cb.pairing_state);
+        return;
+    }
+
+    if (memcmp (bd_addr, btm_cb.pairing_bda, BD_ADDR_LEN) != 0)
+    {
+        BTM_TRACE_ERROR ("BTM_PINCodeReply() - Wrong BD Addr");
+        return;
+    }
+
+    if ((p_dev_rec = btm_find_dev (bd_addr)) == NULL)
+    {
+        BTM_TRACE_ERROR ("BTM_PINCodeReply() - no dev CB");
+        return;
+    }
+
+    if ( (pin_len > PIN_CODE_LEN) || (pin_len == 0) || (p_pin == NULL) )
+        res = BTM_ILLEGAL_VALUE;
+
+    if (res != BTM_SUCCESS)
+    {
+        /* if peer started dd OR we started dd and pre-fetch pin was not used send negative reply */
+        if ((btm_cb.pairing_flags & BTM_PAIR_FLAGS_PEER_STARTED_DD) ||
+            ((btm_cb.pairing_flags & BTM_PAIR_FLAGS_WE_STARTED_DD) &&
+            (btm_cb.pairing_flags & BTM_PAIR_FLAGS_DISC_WHEN_DONE)) )
+        {
+            /* use BTM_PAIR_STATE_WAIT_AUTH_COMPLETE to report authentication failed event */
+            btm_sec_change_pairing_state (BTM_PAIR_STATE_WAIT_AUTH_COMPLETE);
+            btm_cb.acl_disc_reason = HCI_ERR_HOST_REJECT_SECURITY;
+
+            btsnd_hcic_pin_code_neg_reply (bd_addr);
+        }
+        else
+        {
+            p_dev_rec->security_required = BTM_SEC_NONE;
+            btm_sec_change_pairing_state (BTM_PAIR_STATE_IDLE);
+        }
+        return;
+    }
+    if (trusted_mask)
+        BTM_SEC_COPY_TRUSTED_DEVICE(trusted_mask, p_dev_rec->trusted_mask);
+    p_dev_rec->sec_flags   |= BTM_SEC_LINK_KEY_AUTHED;
+    if (pin_len >= 16) {
+        p_dev_rec->sec_flags |= BTM_SEC_16_DIGIT_PIN_AUTHED;
+    }
+
+    if ( (btm_cb.pairing_flags & BTM_PAIR_FLAGS_WE_STARTED_DD)
+         &&  (p_dev_rec->hci_handle == BTM_SEC_INVALID_HANDLE)
+         &&  (btm_cb.security_mode_changed == FALSE) )
+    {
+        /* This is start of the dedicated bonding if local device is 2.0 */
+        btm_cb.pin_code_len = pin_len;
+        p_dev_rec->pin_code_length = pin_len;
+        memcpy (btm_cb.pin_code, p_pin, pin_len);
+
+        btm_cb.security_mode_changed = TRUE;
+#ifdef APPL_AUTH_WRITE_EXCEPTION
+        if(!(APPL_AUTH_WRITE_EXCEPTION)(p_dev_rec->bd_addr))
+#endif
+        btsnd_hcic_write_auth_enable (TRUE);
+
+        btm_cb.acl_disc_reason = 0xff ;
+
+        /* if we rejected incoming connection request, we have to wait HCI_Connection_Complete event */
+        /*  before originating  */
+        if (btm_cb.pairing_flags & BTM_PAIR_FLAGS_REJECTED_CONNECT)
+        {
+            BTM_TRACE_WARNING ("BTM_PINCodeReply(): waiting HCI_Connection_Complete after rejected incoming connection");
+            /* we change state little bit early so btm_sec_connected() will originate connection */
+            /*   when existing ACL link is down completely */
+            btm_sec_change_pairing_state (BTM_PAIR_STATE_WAIT_PIN_REQ);
+        }
+        /* if we already accepted incoming connection from pairing device */
+        else if (p_dev_rec->sm4 & BTM_SM4_CONN_PEND)
+        {
+            BTM_TRACE_WARNING ("BTM_PINCodeReply(): link is connecting so wait pin code request from peer");
+            btm_sec_change_pairing_state (BTM_PAIR_STATE_WAIT_PIN_REQ);
+        }
+        else if (btm_sec_dd_create_conn(p_dev_rec) != BTM_CMD_STARTED)
+        {
+            btm_sec_change_pairing_state (BTM_PAIR_STATE_IDLE);
+            p_dev_rec->sec_flags &= ~BTM_SEC_LINK_KEY_AUTHED;
+
+            if (btm_cb.api.p_auth_complete_callback)
+                (*btm_cb.api.p_auth_complete_callback) (p_dev_rec->bd_addr,  p_dev_rec->dev_class,
+                                                    p_dev_rec->sec_bd_name, HCI_ERR_AUTH_FAILURE);
+        }
+        return;
+    }
+
+    btm_sec_change_pairing_state (BTM_PAIR_STATE_WAIT_AUTH_COMPLETE);
+    btm_cb.acl_disc_reason = HCI_SUCCESS;
+
+    btsnd_hcic_pin_code_req_reply (bd_addr, pin_len, p_pin);
+}
+
+/*******************************************************************************
+**
+** Function         btm_sec_bond_by_transport
+**
+** Description      this is the bond function that will start either SSP or SMP.
+**
+** Parameters:      bd_addr      - Address of the device to bond
+**                  pin_len      - length in bytes of the PIN Code
+**                  p_pin        - pointer to array with the PIN Code
+**                  trusted_mask - bitwise OR of trusted services (array of UINT32)
+**
+**  Note: After 2.1 parameters are not used and preserved here not to change API
+*******************************************************************************/
+tBTM_STATUS btm_sec_bond_by_transport (BD_ADDR bd_addr, tBT_TRANSPORT transport,
+                                       UINT8 pin_len, UINT8 *p_pin, UINT32 trusted_mask[])
+{
+    tBTM_SEC_DEV_REC *p_dev_rec;
+    tBTM_STATUS      status;
+    UINT8            *p_features;
+    UINT8            ii;
+    tACL_CONN        *p= btm_bda_to_acl(bd_addr, transport);
+    BTM_TRACE_API ("btm_sec_bond_by_transport BDA: %02x:%02x:%02x:%02x:%02x:%02x",
+                    bd_addr[0], bd_addr[1], bd_addr[2], bd_addr[3], bd_addr[4], bd_addr[5]);
+
+    BTM_TRACE_DEBUG("btm_sec_bond_by_transport: Transport used %d" , transport);
+
+    /* Other security process is in progress */
+    if (btm_cb.pairing_state != BTM_PAIR_STATE_IDLE)
+    {
+        BTM_TRACE_ERROR ("BTM_SecBond: already busy in state: %s", btm_pair_state_descr(btm_cb.pairing_state));
+        return(BTM_WRONG_MODE);
+    }
+
+    if ((p_dev_rec = btm_find_or_alloc_dev (bd_addr)) == NULL)
+    {
+        return(BTM_NO_RESOURCES);
+    }
+
+    BTM_TRACE_DEBUG ("before update sec_flags=0x%x", p_dev_rec->sec_flags);
+
+    /* Finished if connection is active and already paired */
+    if ( ((p_dev_rec->hci_handle != BTM_SEC_INVALID_HANDLE) && transport == BT_TRANSPORT_BR_EDR
+         &&  (p_dev_rec->sec_flags & BTM_SEC_AUTHENTICATED))
+#if (BLE_INCLUDED == TRUE)
+        ||((p_dev_rec->ble_hci_handle != BTM_SEC_INVALID_HANDLE) && transport == BT_TRANSPORT_LE
+         &&  (p_dev_rec->sec_flags & BTM_SEC_LE_AUTHENTICATED))
+#endif
+
+         )
+    {
+        BTM_TRACE_WARNING("BTM_SecBond -> Already Paired");
+        return(BTM_SUCCESS);
+    }
+
+    /* Tell controller to get rid of the link key if it has one stored */
+    if ((BTM_DeleteStoredLinkKey (bd_addr, NULL)) != BTM_SUCCESS)
+        return(BTM_NO_RESOURCES);
+
+    /* Save the PIN code if we got a valid one */
+    if (p_pin && (pin_len <= PIN_CODE_LEN) && (pin_len != 0))
+    {
+        btm_cb.pin_code_len = pin_len;
+        p_dev_rec->pin_code_length = pin_len;
+        memcpy (btm_cb.pin_code, p_pin, PIN_CODE_LEN);
+    }
+
+    memcpy (btm_cb.pairing_bda, bd_addr, BD_ADDR_LEN);
+
+    btm_cb.pairing_flags = BTM_PAIR_FLAGS_WE_STARTED_DD;
+
+    p_dev_rec->security_required = BTM_SEC_OUT_AUTHENTICATE;
+    p_dev_rec->is_originator     = TRUE;
+    if (trusted_mask)
+        BTM_SEC_COPY_TRUSTED_DEVICE(trusted_mask, p_dev_rec->trusted_mask);
+
+#if BLE_INCLUDED == TRUE && SMP_INCLUDED == TRUE
+    if (transport == BT_TRANSPORT_LE)
+    {
+        btm_ble_init_pseudo_addr (p_dev_rec, bd_addr);
+        p_dev_rec->sec_flags &= ~ BTM_SEC_LE_MASK;
+
+        if (SMP_Pair(bd_addr) == SMP_STARTED)
+        {
+            btm_cb.pairing_flags |= BTM_PAIR_FLAGS_LE_ACTIVE;
+            p_dev_rec->sec_state = BTM_SEC_STATE_AUTHENTICATING;
+            btm_sec_change_pairing_state (BTM_PAIR_STATE_WAIT_AUTH_COMPLETE);
+            return BTM_CMD_STARTED;
+        }
+
+        btm_cb.pairing_flags = 0;
+        return(BTM_NO_RESOURCES);
+    }
+#endif
+
+    p_dev_rec->sec_flags &= ~(BTM_SEC_LINK_KEY_KNOWN | BTM_SEC_AUTHENTICATED | BTM_SEC_ENCRYPTED
+                                  | BTM_SEC_ROLE_SWITCHED  | BTM_SEC_LINK_KEY_AUTHED);
+
+    BTM_TRACE_DEBUG ("after update sec_flags=0x%x", p_dev_rec->sec_flags);
+    if (!controller_get_interface()->supports_simple_pairing())
+    {
+        /* The special case when we authenticate keyboard.  Set pin type to fixed */
+        /* It would be probably better to do it from the application, but it is */
+        /* complicated */
+        if (((p_dev_rec->dev_class[1] & BTM_COD_MAJOR_CLASS_MASK) == BTM_COD_MAJOR_PERIPHERAL)
+            && (p_dev_rec->dev_class[2] & BTM_COD_MINOR_KEYBOARD)
+            && (btm_cb.cfg.pin_type != HCI_PIN_TYPE_FIXED))
+        {
+            btm_cb.pin_type_changed = TRUE;
+            btsnd_hcic_write_pin_type (HCI_PIN_TYPE_FIXED);
+        }
+    }
+
+    for (ii = 0; ii <= HCI_EXT_FEATURES_PAGE_MAX; ii++)
+    {
+        p_features = p_dev_rec->features[ii];
+        BTM_TRACE_EVENT("  remote_features page[%1d] = %02x-%02x-%02x-%02x",
+                         ii, p_features[0], p_features[1], p_features[2], p_features[3]);
+        BTM_TRACE_EVENT("                              %02x-%02x-%02x-%02x",
+                             p_features[4], p_features[5], p_features[6], p_features[7]);
+    }
+
+    BTM_TRACE_EVENT ("BTM_SecBond: Remote sm4: 0x%x  HCI Handle: 0x%04x", p_dev_rec->sm4, p_dev_rec->hci_handle);
+
+#if BTM_SEC_FORCE_RNR_FOR_DBOND == TRUE
+    p_dev_rec->sec_flags &= ~BTM_SEC_NAME_KNOWN;
+#endif
+
+    /* If connection already exists... */
+    if (p && p->hci_handle != BTM_SEC_INVALID_HANDLE)
+    {
+        if (!btm_sec_start_authentication (p_dev_rec))
+            return(BTM_NO_RESOURCES);
+
+        btm_sec_change_pairing_state (BTM_PAIR_STATE_WAIT_PIN_REQ);
+
+        /* Mark lcb as bonding */
+        l2cu_update_lcb_4_bonding (bd_addr, TRUE);
+        return(BTM_CMD_STARTED);
+    }
+
+    BTM_TRACE_DEBUG ("sec mode: %d sm4:x%x", btm_cb.security_mode, p_dev_rec->sm4);
+    if (!controller_get_interface()->supports_simple_pairing()
+        || (p_dev_rec->sm4 == BTM_SM4_KNOWN))
+    {
+        if ( btm_sec_check_prefetch_pin (p_dev_rec) )
+            return (BTM_CMD_STARTED);
+    }
+    if ((btm_cb.security_mode == BTM_SEC_MODE_SP ||
+         btm_cb.security_mode == BTM_SEC_MODE_SP_DEBUG ||
+         btm_cb.security_mode == BTM_SEC_MODE_SC) &&
+         BTM_SEC_IS_SM4_UNKNOWN(p_dev_rec->sm4))
+    {
+        /* local is 2.1 and peer is unknown */
+        if ((p_dev_rec->sm4 & BTM_SM4_CONN_PEND) == 0)
+        {
+            /* we are not accepting connection request from peer
+             * -> RNR (to learn if peer is 2.1)
+             * RNR when no ACL causes HCI_RMT_HOST_SUP_FEAT_NOTIFY_EVT */
+            btm_sec_change_pairing_state (BTM_PAIR_STATE_GET_REM_NAME);
+            BTM_ReadRemoteDeviceName(bd_addr, NULL, BT_TRANSPORT_BR_EDR);
+        }
+        else
+        {
+            /* We are accepting connection request from peer */
+            btm_sec_change_pairing_state (BTM_PAIR_STATE_WAIT_PIN_REQ);
+        }
+        BTM_TRACE_DEBUG ("State:%s sm4: 0x%x sec_state:%d",
+            btm_pair_state_descr (btm_cb.pairing_state), p_dev_rec->sm4, p_dev_rec->sec_state);
+        return BTM_CMD_STARTED;
+    }
+
+    /* both local and peer are 2.1  */
+    status = btm_sec_dd_create_conn(p_dev_rec);
+
+    if (status != BTM_CMD_STARTED)
+    {
+        btm_sec_change_pairing_state (BTM_PAIR_STATE_IDLE);
+    }
+
+    return status;
+}
+
+/*******************************************************************************
+**
+** Function         BTM_SecBondByTransport
+**
+** Description      This function is called to perform bonding with peer device.
+**                  If the connection is already up, but not secure, pairing
+**                  is attempted.  If already paired BTM_SUCCESS is returned.
+**
+** Parameters:      bd_addr      - Address of the device to bond
+**                  transport    - doing SSP over BR/EDR or SMP over LE
+**                  pin_len      - length in bytes of the PIN Code
+**                  p_pin        - pointer to array with the PIN Code
+**                  trusted_mask - bitwise OR of trusted services (array of UINT32)
+**
+**  Note: After 2.1 parameters are not used and preserved here not to change API
+*******************************************************************************/
+tBTM_STATUS BTM_SecBondByTransport (BD_ADDR bd_addr, tBT_TRANSPORT transport,
+                                    UINT8 pin_len, UINT8 *p_pin, UINT32 trusted_mask[])
+{
+#if SMP_INCLUDED == TRUE
+    tBT_DEVICE_TYPE     dev_type;
+    tBLE_ADDR_TYPE      addr_type;
+
+    BTM_ReadDevInfo(bd_addr, &dev_type, &addr_type);
+    /* LE device, do SMP pairing */
+    if ((transport == BT_TRANSPORT_LE && (dev_type & BT_DEVICE_TYPE_BLE) == 0) ||
+        (transport == BT_TRANSPORT_BR_EDR && (dev_type & BT_DEVICE_TYPE_BREDR) == 0))
+    {
+        return BTM_ILLEGAL_ACTION;
+    }
+#endif
+    return btm_sec_bond_by_transport(bd_addr, transport, pin_len, p_pin, trusted_mask);
+}
+
+/*******************************************************************************
+**
+** Function         BTM_SecBond
+**
+** Description      This function is called to perform bonding with peer device.
+**                  If the connection is already up, but not secure, pairing
+**                  is attempted.  If already paired BTM_SUCCESS is returned.
+**
+** Parameters:      bd_addr      - Address of the device to bond
+**                  pin_len      - length in bytes of the PIN Code
+**                  p_pin        - pointer to array with the PIN Code
+**                  trusted_mask - bitwise OR of trusted services (array of UINT32)
+**
+**  Note: After 2.1 parameters are not used and preserved here not to change API
+*******************************************************************************/
+tBTM_STATUS BTM_SecBond (BD_ADDR bd_addr, UINT8 pin_len, UINT8 *p_pin, UINT32 trusted_mask[])
+{
+    tBT_TRANSPORT   transport = BT_TRANSPORT_BR_EDR;
+#if BLE_INCLUDED == TRUE
+    if (BTM_UseLeLink(bd_addr))
+        transport = BT_TRANSPORT_LE;
+#endif
+    return btm_sec_bond_by_transport(bd_addr, transport, pin_len, p_pin, trusted_mask);
+}
+/*******************************************************************************
+**
+** Function         BTM_SecBondCancel
+**
+** Description      This function is called to cancel ongoing bonding process
+**                  with peer device.
+**
+** Parameters:      bd_addr      - Address of the peer device
+**                         transport    - FALSE for BR/EDR link; TRUE for LE link
+**
+*******************************************************************************/
+tBTM_STATUS BTM_SecBondCancel (BD_ADDR bd_addr)
+{
+    tBTM_SEC_DEV_REC *p_dev_rec;
+
+    BTM_TRACE_API ("BTM_SecBondCancel()  State: %s flags:0x%x",
+                    btm_pair_state_descr (btm_cb.pairing_state), btm_cb.pairing_flags);
+
+    if (((p_dev_rec = btm_find_dev (bd_addr)) == NULL)
+        ||  (memcmp (btm_cb.pairing_bda, bd_addr, BD_ADDR_LEN) != 0) )
+        return BTM_UNKNOWN_ADDR;
+
+#if SMP_INCLUDED == TRUE
+    if (btm_cb.pairing_flags & BTM_PAIR_FLAGS_LE_ACTIVE)
+    {
+        if (p_dev_rec->sec_state == BTM_SEC_STATE_AUTHENTICATING)
+        {
+            BTM_TRACE_DEBUG ("Cancel LE pairing");
+            if (SMP_PairCancel(bd_addr))
+            {
+                return BTM_CMD_STARTED;
+            }
+        }
+        return BTM_WRONG_MODE;
+    }
+
+#endif
+    BTM_TRACE_DEBUG ("hci_handle:0x%x sec_state:%d", p_dev_rec->hci_handle, p_dev_rec->sec_state );
+    if (BTM_PAIR_STATE_WAIT_LOCAL_PIN == btm_cb.pairing_state &&
+        BTM_PAIR_FLAGS_WE_STARTED_DD & btm_cb.pairing_flags)
+    {
+        /* pre-fetching pin for dedicated bonding */
+        btm_sec_bond_cancel_complete();
+        return BTM_SUCCESS;
+    }
+
+    /* If this BDA is in a bonding procedure */
+    if ( (btm_cb.pairing_state != BTM_PAIR_STATE_IDLE)
+         &&  (btm_cb.pairing_flags & BTM_PAIR_FLAGS_WE_STARTED_DD))
+    {
+        /* If the HCI link is up */
+        if (p_dev_rec->hci_handle != BTM_SEC_INVALID_HANDLE)
+        {
+            /* If some other thread disconnecting, we do not send second command */
+            if ((p_dev_rec->sec_state == BTM_SEC_STATE_DISCONNECTING) ||
+                (p_dev_rec->sec_state == BTM_SEC_STATE_DISCONNECTING_BOTH))
+                return(BTM_CMD_STARTED);
+
+            /* If the HCI link was set up by Bonding process */
+            if (btm_cb.pairing_flags & BTM_PAIR_FLAGS_DISC_WHEN_DONE)
+                return btm_sec_send_hci_disconnect(p_dev_rec, HCI_ERR_PEER_USER, p_dev_rec->hci_handle);
+            else
+                l2cu_update_lcb_4_bonding(bd_addr, FALSE);
+
+            return BTM_NOT_AUTHORIZED;
+        }
+        else /*HCI link is not up */
+        {
+            /* If the HCI link creation was started by Bonding process */
+            if (btm_cb.pairing_flags & BTM_PAIR_FLAGS_DISC_WHEN_DONE)
+            {
+                if (btsnd_hcic_create_conn_cancel(bd_addr))
+                    return BTM_CMD_STARTED;
+
+                return BTM_NO_RESOURCES;
+            }
+            if (btm_cb.pairing_state == BTM_PAIR_STATE_GET_REM_NAME)
+            {
+                BTM_CancelRemoteDeviceName();
+                btm_cb.pairing_flags |= BTM_PAIR_FLAGS_WE_CANCEL_DD;
+                return BTM_CMD_STARTED;
+            }
+            return BTM_NOT_AUTHORIZED;
+        }
+    }
+
+    return BTM_WRONG_MODE;
+}
+
+/*******************************************************************************
+**
+** Function         BTM_SecGetDeviceLinkKey
+**
+** Description      This function is called to obtain link key for the device
+**                  it returns BTM_SUCCESS if link key is available, or
+**                  BTM_UNKNOWN_ADDR if Security Manager does not know about
+**                  the device or device record does not contain link key info
+**
+** Parameters:      bd_addr      - Address of the device
+**                  link_key     - Link Key is copied into this array
+**
+*******************************************************************************/
+tBTM_STATUS BTM_SecGetDeviceLinkKey (BD_ADDR bd_addr, LINK_KEY link_key)
+{
+    tBTM_SEC_DEV_REC *p_dev_rec;
+
+    if (((p_dev_rec = btm_find_dev (bd_addr)) != NULL)
+        && (p_dev_rec->sec_flags & BTM_SEC_LINK_KEY_KNOWN))
+    {
+        memcpy (link_key, p_dev_rec->link_key, LINK_KEY_LEN);
+        return(BTM_SUCCESS);
+    }
+    return(BTM_UNKNOWN_ADDR);
+}
+
+/*******************************************************************************
+**
+** Function         BTM_SecGetDeviceLinkKeyType
+**
+** Description      This function is called to obtain link key type for the
+**                  device.
+**                  it returns BTM_SUCCESS if link key is available, or
+**                  BTM_UNKNOWN_ADDR if Security Manager does not know about
+**                  the device or device record does not contain link key info
+**
+** Returns          BTM_LKEY_TYPE_IGNORE if link key is unknown, link type
+**                  otherwise.
+**
+*******************************************************************************/
+tBTM_LINK_KEY_TYPE BTM_SecGetDeviceLinkKeyType (BD_ADDR bd_addr)
+{
+    tBTM_SEC_DEV_REC *p_dev_rec = btm_find_dev (bd_addr);
+
+    if ((p_dev_rec != NULL) && (p_dev_rec->sec_flags & BTM_SEC_LINK_KEY_KNOWN))
+    {
+        return p_dev_rec->link_key_type;
+    }
+    return BTM_LKEY_TYPE_IGNORE;
+}
+
+/*******************************************************************************
+**
+** Function         BTM_SetEncryption
+**
+** Description      This function is called to ensure that connection is
+**                  encrypted.  Should be called only on an open connection.
+**                  Typically only needed for connections that first want to
+**                  bring up unencrypted links, then later encrypt them.
+**
+** Parameters:      bd_addr       - Address of the peer device
+**                  transport     - Link transport
+**                  p_callback    - Pointer to callback function called if
+**                                  this function returns PENDING after required
+**                                  procedures are completed.  Can be set to NULL
+**                                  if status is not desired.
+**                  p_ref_data    - pointer to any data the caller wishes to receive
+**                                  in the callback function upon completion.
+**                                  can be set to NULL if not used.
+**                  sec_act       - LE security action, unused for BR/EDR
+**
+** Returns          BTM_SUCCESS   - already encrypted
+**                  BTM_PENDING   - command will be returned in the callback
+**                  BTM_WRONG_MODE- connection not up.
+**                  BTM_BUSY      - security procedures are currently active
+**                  BTM_MODE_UNSUPPORTED - if security manager not linked in.
+**
+*******************************************************************************/
+tBTM_STATUS BTM_SetEncryption (BD_ADDR bd_addr, tBT_TRANSPORT transport, tBTM_SEC_CBACK *p_callback,
+                               void *p_ref_data, tBTM_BLE_SEC_ACT sec_act)
+{
+    tBTM_STATUS rc = 0;
+
+    tBTM_SEC_DEV_REC  *p_dev_rec = btm_find_dev (bd_addr);
+    if (!p_dev_rec ||
+        (transport == BT_TRANSPORT_BR_EDR && p_dev_rec->hci_handle == BTM_SEC_INVALID_HANDLE)
+#if BLE_INCLUDED == TRUE
+        || (transport == BT_TRANSPORT_LE && p_dev_rec->ble_hci_handle == BTM_SEC_INVALID_HANDLE)
+#endif
+        )
+    {
+        /* Connection should be up and runnning */
+        BTM_TRACE_WARNING ("Security Manager: BTM_SetEncryption not connected");
+
+        if (p_callback)
+            (*p_callback) (bd_addr, transport, p_ref_data, BTM_WRONG_MODE);
+
+        return(BTM_WRONG_MODE);
+    }
+
+    if (transport == BT_TRANSPORT_BR_EDR &&
+         (p_dev_rec->sec_flags &  BTM_SEC_ENCRYPTED))
+    {
+        BTM_TRACE_EVENT ("Security Manager: BTM_SetEncryption already encrypted");
+
+        if (p_callback)
+            (*p_callback) (bd_addr, transport, p_ref_data, BTM_SUCCESS);
+
+        return(BTM_SUCCESS);
+    }
+
+    /* enqueue security request if security is active */
+    if (p_dev_rec->p_callback || (p_dev_rec->sec_state != BTM_SEC_STATE_IDLE))
+    {
+        BTM_TRACE_WARNING ("Security Manager: BTM_SetEncryption busy, enqueue request");
+
+        if (btm_sec_queue_encrypt_request(bd_addr, transport, p_callback, p_ref_data, sec_act))
+        {
+            return BTM_CMD_STARTED;
+        }
+        else
+        {
+            if (p_callback)
+                (*p_callback) (bd_addr, transport, p_ref_data, BTM_NO_RESOURCES);
+            return BTM_NO_RESOURCES;
+        }
+    }
+
+    p_dev_rec->p_callback        = p_callback;
+    p_dev_rec->p_ref_data        = p_ref_data;
+    p_dev_rec->security_required |= (BTM_SEC_IN_AUTHENTICATE | BTM_SEC_IN_ENCRYPT);
+    p_dev_rec->is_originator     = FALSE;
+
+    BTM_TRACE_API ("Security Manager: BTM_SetEncryption Handle:%d State:%d Flags:0x%x Required:0x%x",
+                    p_dev_rec->hci_handle, p_dev_rec->sec_state, p_dev_rec->sec_flags,
+                    p_dev_rec->security_required);
+
+#if BLE_INCLUDED == TRUE && SMP_INCLUDED == TRUE
+    if (transport == BT_TRANSPORT_LE)
+    {
+        tACL_CONN *p = btm_bda_to_acl(bd_addr, transport);
+        if (p)
+        {
+           rc = btm_ble_set_encryption(bd_addr, sec_act, p->link_role);
+        }
+        else
+        {
+            rc = BTM_WRONG_MODE;
+            BTM_TRACE_WARNING("%s: cannot call btm_ble_set_encryption, p is NULL", __FUNCTION__);
+        }
+    }
+    else
+#endif
+        rc = btm_sec_execute_procedure (p_dev_rec);
+
+    if (rc != BTM_CMD_STARTED && rc != BTM_BUSY)
+    {
+        if (p_callback)
+        {
+            p_dev_rec->p_callback = NULL;
+            (*p_callback) (bd_addr, transport, p_dev_rec->p_ref_data, rc);
+        }
+    }
+
+    return(rc);
+}
+
+/*******************************************************************************
+ * disconnect the ACL link, if it's not done yet.
+*******************************************************************************/
+static tBTM_STATUS btm_sec_send_hci_disconnect (tBTM_SEC_DEV_REC *p_dev_rec, UINT8 reason, UINT16 conn_handle)
+{
+    UINT8       old_state = p_dev_rec->sec_state;
+    tBTM_STATUS status = BTM_CMD_STARTED;
+
+    BTM_TRACE_EVENT ("btm_sec_send_hci_disconnect:  handle:0x%x, reason=0x%x",
+                      conn_handle, reason);
+
+    /* send HCI_Disconnect on a transport only once */
+    switch (old_state)
+    {
+        case BTM_SEC_STATE_DISCONNECTING:
+            if (conn_handle == p_dev_rec->hci_handle)
+                return status;
+
+            p_dev_rec->sec_state = BTM_SEC_STATE_DISCONNECTING_BOTH;
+            break;
+
+#if BLE_INCLUDED == TRUE && SMP_INCLUDED == TRUE
+        case BTM_SEC_STATE_DISCONNECTING_BLE:
+            if (conn_handle == p_dev_rec->ble_hci_handle)
+                return status;
+
+            p_dev_rec->sec_state = BTM_SEC_STATE_DISCONNECTING_BOTH;
+            break;
+
+        case BTM_SEC_STATE_DISCONNECTING_BOTH:
+            return status;
+#endif
+
+        default:
+            p_dev_rec->sec_state = (conn_handle == p_dev_rec->hci_handle) ?
+                    BTM_SEC_STATE_DISCONNECTING : BTM_SEC_STATE_DISCONNECTING_BLE;
+
+            break;
+    }
+
+    /* If a role switch is in progress, delay the HCI Disconnect to avoid controller problem */
+    if (p_dev_rec->rs_disc_pending == BTM_SEC_RS_PENDING && p_dev_rec->hci_handle == conn_handle)
+    {
+        BTM_TRACE_DEBUG("RS in progress - Set DISC Pending flag in btm_sec_send_hci_disconnect to delay disconnect");
+              p_dev_rec->rs_disc_pending = BTM_SEC_DISC_PENDING;
+        status = BTM_SUCCESS;
+    }
+    /* Tear down the HCI link */
+    else if (!btsnd_hcic_disconnect (conn_handle, reason))
+    {
+         /* could not send disconnect. restore old state */
+         p_dev_rec->sec_state = old_state;
+         status = BTM_NO_RESOURCES;
+    }
+
+    return status;
+}
+
+/*******************************************************************************
+**
+** Function         BTM_ConfirmReqReply
+**
+** Description      This function is called to confirm the numeric value for
+**                  Simple Pairing in response to BTM_SP_CFM_REQ_EVT
+**
+** Parameters:      res           - result of the operation BTM_SUCCESS if success
+**                  bd_addr       - Address of the peer device
+**
+*******************************************************************************/
+void BTM_ConfirmReqReply(tBTM_STATUS res, BD_ADDR bd_addr)
+{
+    tBTM_SEC_DEV_REC *p_dev_rec;
+
+    BTM_TRACE_EVENT ("BTM_ConfirmReqReply() State: %s  Res: %u",
+                      btm_pair_state_descr(btm_cb.pairing_state), res);
+
+    /* If timeout already expired or has been canceled, ignore the reply */
+    if ( (btm_cb.pairing_state != BTM_PAIR_STATE_WAIT_NUMERIC_CONFIRM)
+         ||  (memcmp (btm_cb.pairing_bda, bd_addr, BD_ADDR_LEN) != 0) )
+        return;
+
+    btm_sec_change_pairing_state (BTM_PAIR_STATE_WAIT_AUTH_COMPLETE);
+
+    if ( (res == BTM_SUCCESS) || (res == BTM_SUCCESS_NO_SECURITY) )
+    {
+        btm_cb.acl_disc_reason = HCI_SUCCESS;
+
+        if (res == BTM_SUCCESS)
+        {
+            if ((p_dev_rec = btm_find_dev (bd_addr)) != NULL)
+                p_dev_rec->sec_flags |= BTM_SEC_LINK_KEY_AUTHED;
+                p_dev_rec->sec_flags |= BTM_SEC_16_DIGIT_PIN_AUTHED;
+        }
+
+        btsnd_hcic_user_conf_reply (bd_addr, TRUE);
+    }
+    else
+    {
+        /* Report authentication failed event from state BTM_PAIR_STATE_WAIT_AUTH_COMPLETE */
+        btm_cb.acl_disc_reason = HCI_ERR_HOST_REJECT_SECURITY;
+        btsnd_hcic_user_conf_reply (bd_addr, FALSE);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         BTM_PasskeyReqReply
+**
+** Description      This function is called to provide the passkey for
+**                  Simple Pairing in response to BTM_SP_KEY_REQ_EVT
+**
+** Parameters:      res     - result of the operation BTM_SUCCESS if success
+**                  bd_addr - Address of the peer device
+**                  passkey - numeric value in the range of
+**                  BTM_MIN_PASSKEY_VAL(0) - BTM_MAX_PASSKEY_VAL(999999(0xF423F)).
+**
+*******************************************************************************/
+#if (BTM_LOCAL_IO_CAPS != BTM_IO_CAP_NONE)
+void BTM_PasskeyReqReply(tBTM_STATUS res, BD_ADDR bd_addr, UINT32 passkey)
+{
+    BTM_TRACE_API ("BTM_PasskeyReqReply: State: %s  res:%d",
+                    btm_pair_state_descr(btm_cb.pairing_state), res);
+
+    if ( (btm_cb.pairing_state == BTM_PAIR_STATE_IDLE)
+         ||  (memcmp (btm_cb.pairing_bda, bd_addr, BD_ADDR_LEN) != 0) )
+    {
+        return;
+    }
+
+    /* If timeout already expired or has been canceled, ignore the reply */
+    if ( (btm_cb.pairing_state == BTM_PAIR_STATE_WAIT_AUTH_COMPLETE) && (res != BTM_SUCCESS) )
+    {
+        tBTM_SEC_DEV_REC *p_dev_rec = btm_find_dev (bd_addr);
+        if (p_dev_rec != NULL)
+        {
+            btm_cb.acl_disc_reason = HCI_ERR_HOST_REJECT_SECURITY;
+
+            if (p_dev_rec->hci_handle != BTM_SEC_INVALID_HANDLE)
+                btm_sec_send_hci_disconnect (p_dev_rec, HCI_ERR_AUTH_FAILURE, p_dev_rec->hci_handle);
+            else
+                BTM_SecBondCancel(bd_addr);
+
+            p_dev_rec->sec_flags &= ~(BTM_SEC_LINK_KEY_AUTHED | BTM_SEC_LINK_KEY_KNOWN);
+
+            btm_sec_change_pairing_state (BTM_PAIR_STATE_IDLE);
+            return;
+        }
+    }
+    else if (btm_cb.pairing_state != BTM_PAIR_STATE_KEY_ENTRY)
+        return;
+
+    if (passkey > BTM_MAX_PASSKEY_VAL)
+        res = BTM_ILLEGAL_VALUE;
+
+    btm_sec_change_pairing_state (BTM_PAIR_STATE_WAIT_AUTH_COMPLETE);
+
+    if (res != BTM_SUCCESS)
+    {
+        /* use BTM_PAIR_STATE_WAIT_AUTH_COMPLETE to report authentication failed event */
+        btm_cb.acl_disc_reason = HCI_ERR_HOST_REJECT_SECURITY;
+        btsnd_hcic_user_passkey_neg_reply (bd_addr);
+    } else {
+        btm_cb.acl_disc_reason = HCI_SUCCESS;
+        btsnd_hcic_user_passkey_reply (bd_addr, passkey);
+    }
+}
+#endif
+
+/*******************************************************************************
+**
+** Function         BTM_SendKeypressNotif
+**
+** Description      This function is used during the passkey entry model
+**                  by a device with KeyboardOnly IO capabilities
+**                  (very likely to be a HID Device).
+**                  It is called by a HID Device to inform the remote device when
+**                  a key has been entered or erased.
+**
+** Parameters:      bd_addr - Address of the peer device
+**                  type - notification type
+**
+*******************************************************************************/
+#if (BTM_LOCAL_IO_CAPS != BTM_IO_CAP_NONE)
+void BTM_SendKeypressNotif(BD_ADDR bd_addr, tBTM_SP_KEY_TYPE type)
+{
+    /* This API only make sense between PASSKEY_REQ and SP complete */
+    if (btm_cb.pairing_state == BTM_PAIR_STATE_KEY_ENTRY)
+        btsnd_hcic_send_keypress_notif (bd_addr, type);
+}
+#endif
+
+/*******************************************************************************
+**
+** Function         BTM_IoCapRsp
+**
+** Description      This function is called in response to BTM_SP_IO_REQ_EVT
+**                  When the event data io_req.oob_data is set to BTM_OOB_UNKNOWN
+**                  by the tBTM_SP_CALLBACK implementation, this function is
+**                  called to provide the actual response
+**
+** Parameters:      bd_addr - Address of the peer device
+**                  io_cap  - The IO capability of local device.
+**                  oob     - BTM_OOB_NONE or BTM_OOB_PRESENT.
+**                  auth_req- MITM protection required or not.
+**
+*******************************************************************************/
+void BTM_IoCapRsp(BD_ADDR bd_addr, tBTM_IO_CAP io_cap, tBTM_OOB_DATA oob, tBTM_AUTH_REQ auth_req)
+{
+    BTM_TRACE_EVENT ("BTM_IoCapRsp: state: %s  oob: %d io_cap: %d",
+                      btm_pair_state_descr(btm_cb.pairing_state), oob, io_cap);
+
+    if ( (btm_cb.pairing_state != BTM_PAIR_STATE_WAIT_LOCAL_IOCAPS)
+         ||  (memcmp (btm_cb.pairing_bda, bd_addr, BD_ADDR_LEN) != 0) )
+        return;
+
+    if (oob < BTM_OOB_UNKNOWN && io_cap < BTM_IO_CAP_MAX)
+    {
+        btm_cb.devcb.loc_auth_req   = auth_req;
+        btm_cb.devcb.loc_io_caps    = io_cap;
+
+        if (btm_cb.pairing_flags & BTM_PAIR_FLAGS_WE_STARTED_DD)
+            auth_req = (BTM_AUTH_DD_BOND | (auth_req&BTM_AUTH_YN_BIT));
+
+        btsnd_hcic_io_cap_req_reply (bd_addr, io_cap, oob, auth_req);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         BTM_ReadLocalOobData
+**
+** Description      This function is called to read the local OOB data from
+**                  LM
+**
+*******************************************************************************/
+tBTM_STATUS BTM_ReadLocalOobData(void)
+{
+    tBTM_STATUS status = BTM_SUCCESS;
+
+    if (btsnd_hcic_read_local_oob_data() == FALSE)
+        status = BTM_NO_RESOURCES;
+
+    return status;
+}
+
+/*******************************************************************************
+**
+** Function         BTM_RemoteOobDataReply
+**
+** Description      This function is called to provide the remote OOB data for
+**                  Simple Pairing in response to BTM_SP_RMT_OOB_EVT
+**
+** Parameters:      bd_addr     - Address of the peer device
+**                  c           - simple pairing Hash C.
+**                  r           - simple pairing Randomizer  C.
+**
+*******************************************************************************/
+void BTM_RemoteOobDataReply(tBTM_STATUS res, BD_ADDR bd_addr, BT_OCTET16 c, BT_OCTET16 r)
+{
+    BTM_TRACE_EVENT ("%s() - State: %s res: %d", __func__,
+                      btm_pair_state_descr(btm_cb.pairing_state), res);
+
+    /* If timeout already expired or has been canceled, ignore the reply */
+    if (btm_cb.pairing_state != BTM_PAIR_STATE_WAIT_LOCAL_OOB_RSP)
+        return;
+
+    btm_sec_change_pairing_state (BTM_PAIR_STATE_WAIT_AUTH_COMPLETE);
+
+    if (res != BTM_SUCCESS)
+    {
+        /* use BTM_PAIR_STATE_WAIT_AUTH_COMPLETE to report authentication failed event */
+        btm_cb.acl_disc_reason = HCI_ERR_HOST_REJECT_SECURITY;
+        btsnd_hcic_rem_oob_neg_reply (bd_addr);
+    } else {
+        btm_cb.acl_disc_reason = HCI_SUCCESS;
+        btsnd_hcic_rem_oob_reply (bd_addr, c, r);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         BTM_BuildOobData
+**
+** Description      This function is called to build the OOB data payload to
+**                  be sent over OOB (non-Bluetooth) link
+**
+** Parameters:      p_data  - the location for OOB data
+**                  max_len - p_data size.
+**                  c       - simple pairing Hash C.
+**                  r       - simple pairing Randomizer  C.
+**                  name_len- 0, local device name would not be included.
+**                            otherwise, the local device name is included for
+**                            up to this specified length
+**
+** Returns          Number of bytes in p_data.
+**
+*******************************************************************************/
+UINT16 BTM_BuildOobData(UINT8 *p_data, UINT16 max_len, BT_OCTET16 c,
+                        BT_OCTET16 r, UINT8 name_len)
+{
+    UINT8   *p = p_data;
+    UINT16  len = 0;
+#if BTM_MAX_LOC_BD_NAME_LEN > 0
+    UINT16  name_size;
+    UINT8   name_type = BTM_EIR_SHORTENED_LOCAL_NAME_TYPE;
+#endif
+
+    if (p_data && max_len >= BTM_OOB_MANDATORY_SIZE)
+    {
+        /* add mandatory part */
+        UINT16_TO_STREAM(p, len);
+        BDADDR_TO_STREAM(p, controller_get_interface()->get_address()->address);
+
+        len = BTM_OOB_MANDATORY_SIZE;
+        max_len -= len;
+
+        /* now optional part */
+
+        /* add Hash C */
+        UINT16 delta = BTM_OOB_HASH_C_SIZE + 2;
+        if (max_len >= delta)
+        {
+            *p++ = BTM_OOB_HASH_C_SIZE + 1;
+            *p++ = BTM_EIR_OOB_SSP_HASH_C_TYPE;
+            ARRAY_TO_STREAM(p, c, BTM_OOB_HASH_C_SIZE);
+            len     += delta;
+            max_len -= delta;
+        }
+
+        /* add Rand R */
+        delta = BTM_OOB_RAND_R_SIZE + 2;
+        if (max_len >= delta)
+        {
+            *p++ = BTM_OOB_RAND_R_SIZE + 1;
+            *p++ = BTM_EIR_OOB_SSP_RAND_R_TYPE;
+            ARRAY_TO_STREAM(p, r, BTM_OOB_RAND_R_SIZE);
+            len     += delta;
+            max_len -= delta;
+        }
+
+        /* add class of device */
+        delta = BTM_OOB_COD_SIZE + 2;
+        if (max_len >= delta)
+        {
+            *p++ = BTM_OOB_COD_SIZE + 1;
+            *p++ = BTM_EIR_OOB_COD_TYPE;
+            DEVCLASS_TO_STREAM(p, btm_cb.devcb.dev_class);
+            len     += delta;
+            max_len -= delta;
+        }
+#if BTM_MAX_LOC_BD_NAME_LEN > 0
+        name_size = name_len;
+        if (name_size > strlen(btm_cb.cfg.bd_name))
+        {
+            name_type = BTM_EIR_COMPLETE_LOCAL_NAME_TYPE;
+            name_size = (UINT16)strlen(btm_cb.cfg.bd_name);
+        }
+        delta = name_size + 2;
+        if (max_len >= delta)
+        {
+            *p++ = name_size + 1;
+            *p++ = name_type;
+            ARRAY_TO_STREAM (p, btm_cb.cfg.bd_name, name_size);
+            len     += delta;
+            max_len -= delta;
+        }
+#endif
+        /* update len */
+        p = p_data;
+        UINT16_TO_STREAM(p, len);
+    }
+    return len;
+}
+
+/*******************************************************************************
+**
+** Function         BTM_BothEndsSupportSecureConnections
+**
+** Description      This function is called to check if both the local device and the peer device
+**                  specified by bd_addr support BR/EDR Secure Connections.
+**
+** Parameters:      bd_addr - address of the peer
+**
+** Returns          TRUE if BR/EDR Secure Connections are supported by both local
+**                  and the remote device.
+**                  else FALSE.
+**
+*******************************************************************************/
+BOOLEAN BTM_BothEndsSupportSecureConnections(BD_ADDR bd_addr)
+{
+    return ((controller_get_interface()->supports_secure_connections()) &&
+            (BTM_PeerSupportsSecureConnections(bd_addr)));
+}
+
+/*******************************************************************************
+**
+** Function         BTM_PeerSupportsSecureConnections
+**
+** Description      This function is called to check if the peer supports
+**                  BR/EDR Secure Connections.
+**
+** Parameters:      bd_addr - address of the peer
+**
+** Returns          TRUE if BR/EDR Secure Connections are supported by the peer,
+**                  else FALSE.
+**
+*******************************************************************************/
+BOOLEAN BTM_PeerSupportsSecureConnections(BD_ADDR bd_addr)
+{
+    tBTM_SEC_DEV_REC    *p_dev_rec;
+
+    if ((p_dev_rec = btm_find_dev(bd_addr)) == NULL)
+    {
+        BTM_TRACE_WARNING("%s: unknown BDA: %08x%04x", __FUNCTION__,
+            (bd_addr[0]<<24) + (bd_addr[1]<<16) + (bd_addr[2]<<8) + bd_addr[3],
+            (bd_addr[4]<< 8) + bd_addr[5]);
+        return FALSE;
+    }
+
+    return (p_dev_rec->remote_supports_secure_connections);
+}
+
+/*******************************************************************************
+**
+** Function         BTM_ReadOobData
+**
+** Description      This function is called to parse the OOB data payload
+**                  received over OOB (non-Bluetooth) link
+**
+** Parameters:      p_data  - the location for OOB data
+**                  eir_tag - The associated EIR tag to read the data.
+**                  *p_len(output) - the length of the data with the given tag.
+**
+** Returns          the beginning of the data with the given tag.
+**                  NULL, if the tag is not found.
+**
+*******************************************************************************/
+UINT8 * BTM_ReadOobData(UINT8 *p_data, UINT8 eir_tag, UINT8 *p_len)
+{
+    UINT8   *p = p_data;
+    UINT16  max_len;
+    UINT8   len, type;
+    UINT8   *p_ret = NULL;
+    UINT8   ret_len = 0;
+
+    if (p_data)
+    {
+        STREAM_TO_UINT16(max_len, p);
+        if (max_len >= BTM_OOB_MANDATORY_SIZE)
+        {
+            if (BTM_EIR_OOB_BD_ADDR_TYPE == eir_tag)
+            {
+                p_ret = p; /* the location for bd_addr */
+                ret_len = BTM_OOB_BD_ADDR_SIZE;
+            }
+            else
+            {
+                p += BD_ADDR_LEN;
+                max_len -= BTM_OOB_MANDATORY_SIZE;
+                /* now the optional data in EIR format */
+                while (max_len > 0)
+                {
+                    len     = *p++; /* tag data len + 1 */
+                    type    = *p++;
+                    if (eir_tag == type)
+                    {
+                        p_ret = p;
+                        ret_len = len - 1;
+                        break;
+                    }
+                    /* the data size of this tag is len + 1 (tag data len + 2) */
+                    if (max_len > len)
+                    {
+                        max_len -= len;
+                        max_len--;
+                        len--;
+                        p += len;
+                    }
+                    else
+                        max_len = 0;
+                }
+            }
+        }
+    }
+
+    if (p_len)
+        *p_len = ret_len;
+
+    return p_ret;
+}
+
+/*******************************************************************************
+**
+** Function         BTM_SetOutService
+**
+** Description      This function is called to set the service for
+**                  outgoing connections.
+**
+**                  If the profile/application calls BTM_SetSecurityLevel
+**                  before initiating a connection, this function does not
+**                  need to be called.
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTM_SetOutService(BD_ADDR bd_addr, UINT8 service_id, UINT32 mx_chan_id)
+{
+    tBTM_SEC_DEV_REC *p_dev_rec;
+    tBTM_SEC_SERV_REC *p_serv_rec = &btm_cb.sec_serv_rec[0];
+
+    btm_cb.p_out_serv = p_serv_rec;
+    p_dev_rec = btm_find_dev (bd_addr);
+
+    for (int i = 0; i < BTM_SEC_MAX_SERVICE_RECORDS; i++, p_serv_rec++)
+    {
+        if ((p_serv_rec->security_flags & BTM_SEC_IN_USE)
+            && (p_serv_rec->service_id == service_id)
+            && (p_serv_rec->orig_mx_chan_id == mx_chan_id))
+        {
+            BTM_TRACE_API("BTM_SetOutService p_out_serv id %d, psm 0x%04x, proto_id %d, chan_id %d",
+                           p_serv_rec->service_id, p_serv_rec->psm, p_serv_rec->mx_proto_id, p_serv_rec->orig_mx_chan_id);
+            btm_cb.p_out_serv = p_serv_rec;
+            if (p_dev_rec)
+                p_dev_rec->p_cur_service = p_serv_rec;
+            break;
+        }
+    }
+}
+
+/************************************************************************
+**              I N T E R N A L     F U N C T I O N S
+*************************************************************************/
+/*******************************************************************************
+**
+** Function         btm_sec_is_upgrade_possible
+**
+** Description      This function returns TRUE if the existing link key
+**                  can be upgraded or if the link key does not exist.
+**
+** Returns          BOOLEAN
+**
+*******************************************************************************/
+static BOOLEAN btm_sec_is_upgrade_possible(tBTM_SEC_DEV_REC  *p_dev_rec, BOOLEAN is_originator)
+{
+    UINT16              mtm_check = is_originator ? BTM_SEC_OUT_MITM : BTM_SEC_IN_MITM;
+    BOOLEAN             is_possible = TRUE;
+
+    if (p_dev_rec->sec_flags & BTM_SEC_LINK_KEY_KNOWN)
+    {
+        is_possible = FALSE;
+        if(p_dev_rec->p_cur_service)
+        {
+            BTM_TRACE_DEBUG ("%s() id: %d, link_key_typet: %d, rmt_io_caps: %d, chk flags: 0x%x, flags: 0x%x",
+                          __func__, p_dev_rec->p_cur_service->service_id, p_dev_rec->link_key_type,
+                          p_dev_rec->rmt_io_caps, mtm_check, p_dev_rec->p_cur_service->security_flags);
+        }
+        else
+        {
+            BTM_TRACE_DEBUG ("%s() link_key_typet: %d, rmt_io_caps: %d, chk flags: 0x%x",
+                          __func__, p_dev_rec->link_key_type, p_dev_rec->rmt_io_caps, mtm_check);
+        }
+        /* Already have a link key to the connected peer. Is the link key secure enough?
+        ** Is a link key upgrade even possible?
+        */
+        if ((p_dev_rec->security_required & mtm_check)    /* needs MITM */
+            && ((p_dev_rec->link_key_type == BTM_LKEY_TYPE_UNAUTH_COMB) ||
+                (p_dev_rec->link_key_type == BTM_LKEY_TYPE_UNAUTH_COMB_P_256))
+                                                          /* has unauthenticated
+                                                          link key */
+            && (p_dev_rec->rmt_io_caps < BTM_IO_CAP_MAX)  /* a valid peer IO cap */
+            && (btm_sec_io_map[p_dev_rec->rmt_io_caps][btm_cb.devcb.loc_io_caps]))
+                                                          /* authenticated
+                                                          link key is possible */
+        {
+            /* upgrade is possible: check if the application wants the upgrade.
+             * If the application is configured to use a global MITM flag,
+             * it probably would not want to upgrade the link key based on the security level database */
+            is_possible = TRUE;
+        }
+    }
+    BTM_TRACE_DEBUG ("%s() is_possible: %d sec_flags: 0x%x", __func__, is_possible, p_dev_rec->sec_flags);
+    return is_possible;
+}
+
+/*******************************************************************************
+**
+** Function         btm_sec_check_upgrade
+**
+** Description      This function is called to check if the existing link key
+**                  needs to be upgraded.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btm_sec_check_upgrade(tBTM_SEC_DEV_REC  *p_dev_rec, BOOLEAN is_originator)
+{
+
+    BTM_TRACE_DEBUG ("%s()", __func__);
+
+    /* Only check if link key already exists */
+    if (!(p_dev_rec->sec_flags & BTM_SEC_LINK_KEY_KNOWN))
+        return;
+
+    if (btm_sec_is_upgrade_possible (p_dev_rec, is_originator) == TRUE)
+    {
+        BTM_TRACE_DEBUG ("need upgrade!! sec_flags:0x%x", p_dev_rec->sec_flags);
+        /* upgrade is possible: check if the application wants the upgrade.
+         * If the application is configured to use a global MITM flag,
+         * it probably would not want to upgrade the link key based on the security level database */
+        tBTM_SP_UPGRADE evt_data;
+        memcpy (evt_data.bd_addr, p_dev_rec->bd_addr, BD_ADDR_LEN);
+        evt_data.upgrade = TRUE;
+        if (btm_cb.api.p_sp_callback)
+            (*btm_cb.api.p_sp_callback) (BTM_SP_UPGRADE_EVT, (tBTM_SP_EVT_DATA *)&evt_data);
+
+        BTM_TRACE_DEBUG ("evt_data.upgrade:0x%x", evt_data.upgrade);
+        if (evt_data.upgrade)
+        {
+            /* if the application confirms the upgrade, set the upgrade bit */
+            p_dev_rec->sm4 |= BTM_SM4_UPGRADE;
+
+            /* Clear the link key known to go through authentication/pairing again */
+            p_dev_rec->sec_flags &= ~(BTM_SEC_LINK_KEY_KNOWN | BTM_SEC_LINK_KEY_AUTHED);
+            p_dev_rec->sec_flags &= ~BTM_SEC_AUTHENTICATED;
+            BTM_TRACE_DEBUG ("sec_flags:0x%x", p_dev_rec->sec_flags);
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btm_sec_l2cap_access_req
+**
+** Description      This function is called by the L2CAP to grant permission to
+**                  establish L2CAP connection to or from the peer device.
+**
+** Parameters:      bd_addr       - Address of the peer device
+**                  psm           - L2CAP PSM
+**                  is_originator - TRUE if protocol above L2CAP originates
+**                                  connection
+**                  p_callback    - Pointer to callback function called if
+**                                  this function returns PENDING after required
+**                                  procedures are complete. MUST NOT BE NULL.
+**
+** Returns          tBTM_STATUS
+**
+*******************************************************************************/
+tBTM_STATUS btm_sec_l2cap_access_req (BD_ADDR bd_addr, UINT16 psm, UINT16 handle,
+                                      CONNECTION_TYPE conn_type,
+                                      tBTM_SEC_CALLBACK *p_callback,
+                                      void *p_ref_data)
+{
+    tBTM_SEC_DEV_REC  *p_dev_rec;
+    tBTM_SEC_SERV_REC *p_serv_rec;
+    UINT16         security_required;
+    UINT16         old_security_required;
+    BOOLEAN       old_is_originator;
+    tBTM_STATUS   rc = BTM_SUCCESS;
+    BOOLEAN       chk_acp_auth_done = FALSE;
+    BOOLEAN is_originator;
+    tBT_TRANSPORT transport = BT_TRANSPORT_BR_EDR; /* should check PSM range in LE connection oriented L2CAP connection */
+
+#if (L2CAP_UCD_INCLUDED == TRUE)
+    if (conn_type & CONNECTION_TYPE_ORIG_MASK)
+        is_originator = TRUE;
+    else
+        is_originator = FALSE;
+
+    BTM_TRACE_DEBUG ("%s() conn_type: 0x%x, 0x%x", __func__, conn_type, p_ref_data);
+#else
+    is_originator = conn_type;
+
+    BTM_TRACE_DEBUG ("%s() is_originator:%d, 0x%x", __func__, is_originator, p_ref_data);
+#endif
+
+    /* Find or get oldest record */
+    p_dev_rec = btm_find_or_alloc_dev (bd_addr);
+
+    p_dev_rec->hci_handle = handle;
+
+    /* Find the service record for the PSM */
+    p_serv_rec = btm_sec_find_first_serv (conn_type, psm);
+
+    /* If there is no application registered with this PSM do not allow connection */
+    if (!p_serv_rec)
+    {
+        BTM_TRACE_WARNING ("%s() PSM: %d no application registerd", __func__, psm);
+        (*p_callback) (bd_addr, transport, p_ref_data, BTM_MODE_UNSUPPORTED);
+        return(BTM_MODE_UNSUPPORTED);
+    }
+
+    /* Services level0 by default have no security */
+    if ((btm_sec_is_serv_level0(psm)) && (!btm_cb.devcb.secure_connections_only))
+    {
+        (*p_callback) (bd_addr,transport, p_ref_data, BTM_SUCCESS_NO_SECURITY);
+        return(BTM_SUCCESS);
+    }
+#if (L2CAP_UCD_INCLUDED == TRUE)
+    if ( conn_type & CONNECTION_TYPE_CONNLESS_MASK )
+    {
+        if (btm_cb.security_mode == BTM_SEC_MODE_SC)
+        {
+            security_required = btm_sec_set_serv_level4_flags (p_serv_rec->ucd_security_flags,
+                                                               is_originator);
+        }
+        else
+        {
+            security_required = p_serv_rec->ucd_security_flags;
+        }
+
+        rc = BTM_CMD_STARTED;
+        if (is_originator)
+        {
+            if (((security_required & BTM_SEC_OUT_FLAGS) == 0) ||
+                ((((security_required & BTM_SEC_OUT_FLAGS) == BTM_SEC_OUT_AUTHENTICATE) && (p_dev_rec->sec_flags & BTM_SEC_AUTHENTICATED))) ||
+                ((((security_required & BTM_SEC_OUT_FLAGS) == (BTM_SEC_OUT_AUTHENTICATE | BTM_SEC_OUT_ENCRYPT)) && (p_dev_rec->sec_flags & BTM_SEC_ENCRYPTED))) ||
+                ((((security_required & BTM_SEC_OUT_FLAGS) == BTM_SEC_OUT_FLAGS) && (p_dev_rec->sec_flags & BTM_SEC_AUTHORIZED))) )
+            {
+                rc = BTM_SUCCESS;
+            }
+        }
+        else
+        {
+            if (((security_required & BTM_SEC_IN_FLAGS) == 0) ||
+                ((((security_required & BTM_SEC_IN_FLAGS) == BTM_SEC_IN_AUTHENTICATE) && (p_dev_rec->sec_flags & BTM_SEC_AUTHENTICATED))) ||
+                ((((security_required & BTM_SEC_IN_FLAGS) == (BTM_SEC_IN_AUTHENTICATE | BTM_SEC_IN_ENCRYPT)) && (p_dev_rec->sec_flags & BTM_SEC_ENCRYPTED))) ||
+                ((((security_required & BTM_SEC_IN_FLAGS) == BTM_SEC_IN_FLAGS) && (p_dev_rec->sec_flags & BTM_SEC_AUTHORIZED))) )
+            {
+                // Check for 16 digits (or MITM)
+                if (((security_required & BTM_SEC_IN_MIN_16_DIGIT_PIN) == 0) ||
+                    (((security_required & BTM_SEC_IN_MIN_16_DIGIT_PIN) == BTM_SEC_IN_MIN_16_DIGIT_PIN) &&
+                     btm_dev_16_digit_authenticated(p_dev_rec))) {
+                    rc = BTM_SUCCESS;
+                }
+            }
+        }
+
+        if ((rc == BTM_SUCCESS) && (security_required & BTM_SEC_MODE4_LEVEL4) &&
+            (p_dev_rec->link_key_type != BTM_LKEY_TYPE_AUTH_COMB_P_256))
+        {
+            rc = BTM_CMD_STARTED;
+        }
+
+        if (rc == BTM_SUCCESS)
+        {
+            if (p_callback)
+                (*p_callback) (bd_addr, transport, (void *)p_ref_data, BTM_SUCCESS);
+
+            return(BTM_SUCCESS);
+        }
+    }
+    else
+#endif
+    {
+        if (btm_cb.security_mode == BTM_SEC_MODE_SC)
+        {
+            security_required = btm_sec_set_serv_level4_flags (p_serv_rec->security_flags,
+                                                                is_originator);
+        }
+        else
+        {
+            security_required = p_serv_rec->security_flags;
+        }
+    }
+
+    BTM_TRACE_DEBUG("%s: security_required 0x%04x, is_originator 0x%02x, psm  0x%04x",
+                    __FUNCTION__, security_required, is_originator, psm);
+
+    if ((!is_originator) && (security_required & BTM_SEC_MODE4_LEVEL4))
+    {
+        BOOLEAN local_supports_sc = controller_get_interface()->supports_secure_connections();
+        /* acceptor receives L2CAP Channel Connect Request for Secure Connections Only service */
+        if (!(local_supports_sc) || !(p_dev_rec->remote_supports_secure_connections))
+        {
+            BTM_TRACE_DEBUG("%s: SC only service, local_support_for_sc %d",
+                            "rmt_support_for_sc : %d -> fail pairing", __FUNCTION__,
+                            local_supports_sc,
+                            p_dev_rec->remote_supports_secure_connections);
+            if (p_callback)
+                (*p_callback) (bd_addr, transport, (void *)p_ref_data,
+                                                    BTM_MODE4_LEVEL4_NOT_SUPPORTED);
+
+            return (BTM_MODE4_LEVEL4_NOT_SUPPORTED);
+        }
+    }
+
+    /* there are some devices (moto KRZR) which connects to several services at the same time */
+    /* we will process one after another */
+    if ( (p_dev_rec->p_callback) || (btm_cb.pairing_state != BTM_PAIR_STATE_IDLE) )
+    {
+        BTM_TRACE_EVENT ("%s() - busy - PSM:%d delayed  state: %s mode:%d, sm4:0x%x", __func__,
+                          psm, btm_pair_state_descr(btm_cb.pairing_state), btm_cb.security_mode, p_dev_rec->sm4);
+        BTM_TRACE_EVENT ("security_flags:x%x, sec_flags:x%x", security_required, p_dev_rec->sec_flags);
+        rc = BTM_CMD_STARTED;
+        if ((btm_cb.security_mode == BTM_SEC_MODE_UNDEFINED ||
+             btm_cb.security_mode == BTM_SEC_MODE_NONE ||
+             btm_cb.security_mode == BTM_SEC_MODE_SERVICE ||
+             btm_cb.security_mode == BTM_SEC_MODE_LINK) ||
+            (BTM_SM4_KNOWN == p_dev_rec->sm4) || (BTM_SEC_IS_SM4(p_dev_rec->sm4) &&
+            (btm_sec_is_upgrade_possible(p_dev_rec, is_originator) == FALSE)))
+        {
+            /* legacy mode - local is legacy or local is lisbon/peer is legacy
+             * or SM4 with no possibility of link key upgrade */
+            if (is_originator)
+            {
+                if (((security_required & BTM_SEC_OUT_FLAGS) == 0) ||
+                    ((((security_required & BTM_SEC_OUT_FLAGS) == BTM_SEC_OUT_AUTHENTICATE) && btm_dev_authenticated(p_dev_rec))) ||
+                    ((((security_required & BTM_SEC_OUT_FLAGS) == (BTM_SEC_OUT_AUTHENTICATE | BTM_SEC_OUT_ENCRYPT)) && btm_dev_encrypted(p_dev_rec))) ||
+                    ((((security_required & BTM_SEC_OUT_FLAGS) == BTM_SEC_OUT_FLAGS) && btm_dev_authorized(p_dev_rec)  && btm_dev_encrypted(p_dev_rec))) )
+                {
+                    rc = BTM_SUCCESS;
+                }
+            }
+            else
+            {
+                if (((security_required & BTM_SEC_IN_FLAGS) == 0) ||
+                (((security_required & BTM_SEC_IN_FLAGS) == BTM_SEC_IN_AUTHENTICATE) && btm_dev_authenticated(p_dev_rec)) ||
+                (((security_required & BTM_SEC_IN_FLAGS) == (BTM_SEC_IN_AUTHENTICATE | BTM_SEC_IN_ENCRYPT)) && btm_dev_encrypted(p_dev_rec)) ||
+                (((security_required & BTM_SEC_IN_FLAGS) == BTM_SEC_IN_AUTHORIZE) && (btm_dev_authorized(p_dev_rec)||btm_serv_trusted(p_dev_rec, p_serv_rec))) ||
+                (((security_required & BTM_SEC_IN_FLAGS) == (BTM_SEC_IN_AUTHENTICATE | BTM_SEC_IN_AUTHORIZE)) && ((btm_dev_authorized(p_dev_rec)||btm_serv_trusted(p_dev_rec, p_serv_rec)) && btm_dev_authenticated(p_dev_rec))) ||
+                (((security_required & BTM_SEC_IN_FLAGS) == (BTM_SEC_IN_ENCRYPT | BTM_SEC_IN_AUTHORIZE)) && ((btm_dev_authorized(p_dev_rec)||btm_serv_trusted(p_dev_rec, p_serv_rec)) && btm_dev_encrypted(p_dev_rec))) ||
+                (((security_required & BTM_SEC_IN_FLAGS) == BTM_SEC_IN_FLAGS)  && btm_dev_encrypted(p_dev_rec) && (btm_dev_authorized(p_dev_rec)||btm_serv_trusted(p_dev_rec, p_serv_rec))))
+                {
+                    // Check for 16 digits (or MITM)
+                    if (((security_required & BTM_SEC_IN_MIN_16_DIGIT_PIN) == 0) ||
+                       (((security_required & BTM_SEC_IN_MIN_16_DIGIT_PIN) == BTM_SEC_IN_MIN_16_DIGIT_PIN) && btm_dev_16_digit_authenticated(p_dev_rec))) {
+                        rc = BTM_SUCCESS;
+                    }
+                }
+            }
+
+            if ((rc == BTM_SUCCESS) && (security_required & BTM_SEC_MODE4_LEVEL4) &&
+                (p_dev_rec->link_key_type != BTM_LKEY_TYPE_AUTH_COMB_P_256))
+            {
+                rc = BTM_CMD_STARTED;
+            }
+
+            if (rc == BTM_SUCCESS)
+            {
+                if (p_callback)
+                    (*p_callback) (bd_addr, transport, (void *)p_ref_data, BTM_SUCCESS);
+                return(BTM_SUCCESS);
+            }
+        }
+
+        btm_cb.sec_req_pending = TRUE;
+        return(BTM_CMD_STARTED);
+    }
+
+    /* Save pointer to service record */
+    p_dev_rec->p_cur_service = p_serv_rec;
+
+    /* Modify security_required in btm_sec_l2cap_access_req for Lisbon */
+    if (btm_cb.security_mode == BTM_SEC_MODE_SP ||
+        btm_cb.security_mode == BTM_SEC_MODE_SP_DEBUG ||
+        btm_cb.security_mode == BTM_SEC_MODE_SC)
+    {
+        if (BTM_SEC_IS_SM4(p_dev_rec->sm4))
+        {
+            if (is_originator)
+            {
+                /* SM4 to SM4 -> always authenticate & encrypt */
+                security_required |= (BTM_SEC_OUT_AUTHENTICATE | BTM_SEC_OUT_ENCRYPT);
+            }
+            else /* acceptor */
+            {
+                /* SM4 to SM4: the acceptor needs to make sure the authentication is already done */
+                chk_acp_auth_done = TRUE;
+                /* SM4 to SM4 -> always authenticate & encrypt */
+                security_required |= (BTM_SEC_IN_AUTHENTICATE | BTM_SEC_IN_ENCRYPT);
+           }
+        }
+        else if (!(BTM_SM4_KNOWN & p_dev_rec->sm4))
+        {
+            /* the remote features are not known yet */
+            BTM_TRACE_DEBUG("%s: (%s) remote features unknown!!sec_flags:0x%02x", __FUNCTION__,
+                            (is_originator) ? "initiator" : "acceptor", p_dev_rec->sec_flags);
+
+            p_dev_rec->sm4 |= BTM_SM4_REQ_PEND;
+            return (BTM_CMD_STARTED);
+        }
+    }
+
+    BTM_TRACE_DEBUG ("%s()  sm4:0x%x, sec_flags:0x%x, security_required:0x%x chk:%d", __func__,
+                      p_dev_rec->sm4, p_dev_rec->sec_flags, security_required, chk_acp_auth_done);
+
+    old_security_required        = p_dev_rec->security_required;
+    old_is_originator            = p_dev_rec->is_originator;
+    p_dev_rec->security_required = security_required;
+    p_dev_rec->p_ref_data        = p_ref_data;
+    p_dev_rec->is_originator     = is_originator;
+
+#if (L2CAP_UCD_INCLUDED == TRUE)
+    if ( conn_type & CONNECTION_TYPE_CONNLESS_MASK )
+        p_dev_rec->is_ucd = TRUE;
+    else
+        p_dev_rec->is_ucd = FALSE;
+#endif
+
+    /* If there are multiple service records used through the same PSM */
+    /* leave security decision for the multiplexor on the top */
+#if (L2CAP_UCD_INCLUDED == TRUE)
+    if (((btm_sec_find_next_serv (p_serv_rec)) != NULL)
+        &&(!( conn_type & CONNECTION_TYPE_CONNLESS_MASK ))) /* if not UCD */
+#else
+    if ((btm_sec_find_next_serv (p_serv_rec)) != NULL)
+#endif
+    {
+        BTM_TRACE_DEBUG ("no next_serv sm4:0x%x, chk:%d", p_dev_rec->sm4, chk_acp_auth_done);
+        if (!BTM_SEC_IS_SM4(p_dev_rec->sm4))
+        {
+            BTM_TRACE_EVENT ("Security Manager: l2cap_access_req PSM:%d postponed for multiplexer", psm);
+            /* pre-Lisbon: restore the old settings */
+            p_dev_rec->security_required = old_security_required;
+            p_dev_rec->is_originator     = old_is_originator;
+
+            (*p_callback) (bd_addr, transport, p_ref_data, BTM_SUCCESS);
+
+            return(BTM_SUCCESS);
+        }
+    }
+
+    /* if the originator is using dynamic PSM in legacy mode, do not start any security process now
+     * The layer above L2CAP needs to carry out the security requirement after L2CAP connect
+     * response is received */
+    if (is_originator &&
+        ((btm_cb.security_mode == BTM_SEC_MODE_UNDEFINED ||
+          btm_cb.security_mode == BTM_SEC_MODE_NONE ||
+          btm_cb.security_mode == BTM_SEC_MODE_SERVICE ||
+          btm_cb.security_mode == BTM_SEC_MODE_LINK) ||
+         !BTM_SEC_IS_SM4(p_dev_rec->sm4)) && (psm >= 0x1001))
+    {
+        BTM_TRACE_EVENT ("dynamic PSM:0x%x in legacy mode - postponed for upper layer", psm);
+        /* restore the old settings */
+        p_dev_rec->security_required = old_security_required;
+        p_dev_rec->is_originator     = old_is_originator;
+
+        (*p_callback) (bd_addr, transport, p_ref_data, BTM_SUCCESS);
+
+        return(BTM_SUCCESS);
+    }
+
+    if (chk_acp_auth_done)
+    {
+        BTM_TRACE_DEBUG ("(SM4 to SM4) btm_sec_l2cap_access_req rspd. authenticated: x%x, enc: x%x",
+                          (p_dev_rec->sec_flags & BTM_SEC_AUTHENTICATED), (p_dev_rec->sec_flags & BTM_SEC_ENCRYPTED));
+        /* SM4, but we do not know for sure which level of security we need.
+         * as long as we have a link key, it's OK */
+        if ((0 == (p_dev_rec->sec_flags & BTM_SEC_AUTHENTICATED))
+            ||(0 == (p_dev_rec->sec_flags & BTM_SEC_ENCRYPTED)))
+        {
+            rc = BTM_DELAY_CHECK;
+            /*
+            2046 may report HCI_Encryption_Change and L2C Connection Request out of sequence
+            because of data path issues. Delay this disconnect a little bit
+            */
+            LOG_INFO(LOG_TAG, "%s peer should have initiated security process by now (SM4 to SM4)", __func__);
+            p_dev_rec->p_callback        = p_callback;
+            p_dev_rec->sec_state         = BTM_SEC_STATE_DELAY_FOR_ENC;
+            (*p_callback) (bd_addr, transport, p_ref_data, rc);
+
+            return BTM_SUCCESS;
+        }
+    }
+
+    p_dev_rec->p_callback        = p_callback;
+
+    if (p_dev_rec->last_author_service_id == BTM_SEC_NO_LAST_SERVICE_ID
+        || p_dev_rec->last_author_service_id != p_dev_rec->p_cur_service->service_id)
+    {
+        /* Although authentication and encryption are per connection
+        ** authorization is per access request.  For example when serial connection
+        ** is up and authorized and client requests to read file (access to other
+        ** scn), we need to request user's permission again.
+        */
+        p_dev_rec->sec_flags &= ~BTM_SEC_AUTHORIZED;
+    }
+
+    if (BTM_SEC_IS_SM4(p_dev_rec->sm4))
+    {
+        if ((p_dev_rec->security_required & BTM_SEC_MODE4_LEVEL4) &&
+            (p_dev_rec->link_key_type != BTM_LKEY_TYPE_AUTH_COMB_P_256))
+        {
+            /* BTM_LKEY_TYPE_AUTH_COMB_P_256 is the only acceptable key in this case */
+            if ((p_dev_rec->sec_flags & BTM_SEC_LINK_KEY_KNOWN) != 0)
+            {
+                p_dev_rec->sm4 |= BTM_SM4_UPGRADE;
+            }
+            p_dev_rec->sec_flags &= ~(BTM_SEC_LINK_KEY_KNOWN | BTM_SEC_LINK_KEY_AUTHED |
+                                      BTM_SEC_AUTHENTICATED);
+            BTM_TRACE_DEBUG ("%s: sec_flags:0x%x", __FUNCTION__, p_dev_rec->sec_flags);
+        }
+        else
+        {
+            /* If we already have a link key to the connected peer, is it secure enough? */
+            btm_sec_check_upgrade(p_dev_rec, is_originator);
+        }
+    }
+
+    BTM_TRACE_EVENT ("%s() PSM:%d Handle:%d State:%d Flags: 0x%x Required: 0x%x Service ID:%d",
+           __func__, psm, handle, p_dev_rec->sec_state, p_dev_rec->sec_flags,
+           p_dev_rec->security_required, p_dev_rec->p_cur_service->service_id);
+
+    if ((rc = btm_sec_execute_procedure (p_dev_rec)) != BTM_CMD_STARTED)
+    {
+        p_dev_rec->p_callback = NULL;
+        (*p_callback) (bd_addr, transport, p_dev_rec->p_ref_data, (UINT8)rc);
+    }
+
+    return(rc);
+}
+
+/*******************************************************************************
+**
+** Function         btm_sec_mx_access_request
+**
+** Description      This function is called by all Multiplexing Protocols during
+**                  establishing connection to or from peer device to grant
+**                  permission to establish application connection.
+**
+** Parameters:      bd_addr       - Address of the peer device
+**                  psm           - L2CAP PSM
+**                  is_originator - TRUE if protocol above L2CAP originates
+**                                  connection
+**                  mx_proto_id   - protocol ID of the multiplexer
+**                  mx_chan_id    - multiplexer channel to reach application
+**                  p_callback    - Pointer to callback function called if
+**                                  this function returns PENDING after required
+**                                  procedures are completed
+**                  p_ref_data    - Pointer to any reference data needed by the
+**                                  the callback function.
+**
+** Returns          BTM_CMD_STARTED
+**
+*******************************************************************************/
+tBTM_STATUS btm_sec_mx_access_request (BD_ADDR bd_addr, UINT16 psm, BOOLEAN is_originator,
+                                       UINT32 mx_proto_id, UINT32 mx_chan_id,
+                                       tBTM_SEC_CALLBACK *p_callback, void *p_ref_data)
+{
+    tBTM_SEC_DEV_REC  *p_dev_rec;
+    tBTM_SEC_SERV_REC *p_serv_rec;
+    tBTM_STATUS        rc;
+    UINT16             security_required;
+    BOOLEAN transport   = FALSE;/* should check PSM range in LE connection oriented L2CAP connection */
+
+    BTM_TRACE_DEBUG ("%s() is_originator: %d", __func__, is_originator);
+    /* Find or get oldest record */
+    p_dev_rec = btm_find_or_alloc_dev (bd_addr);
+
+    /* Find the service record for the PSM */
+    p_serv_rec = btm_sec_find_mx_serv (is_originator, psm, mx_proto_id, mx_chan_id);
+
+    /* If there is no application registered with this PSM do not allow connection */
+    if (!p_serv_rec)
+    {
+        if (p_callback)
+            (*p_callback) (bd_addr, transport, p_ref_data, BTM_MODE_UNSUPPORTED);
+
+        BTM_TRACE_ERROR ("Security Manager: MX service not found PSM:%d Proto:%d SCN:%d",
+                          psm, mx_proto_id, mx_chan_id);
+        return BTM_NO_RESOURCES;
+    }
+
+    if ((btm_cb.security_mode == BTM_SEC_MODE_SC) && (!btm_sec_is_serv_level0(psm)))
+    {
+        security_required = btm_sec_set_serv_level4_flags (p_serv_rec->security_flags,
+                                                           is_originator);
+    }
+    else
+    {
+        security_required = p_serv_rec->security_flags;
+    }
+
+    /* there are some devices (moto phone) which connects to several services at the same time */
+    /* we will process one after another */
+    if ( (p_dev_rec->p_callback) || (btm_cb.pairing_state != BTM_PAIR_STATE_IDLE) )
+    {
+        BTM_TRACE_EVENT ("%s() service PSM:%d Proto:%d SCN:%d delayed  state: %s", __func__,
+                          psm, mx_proto_id, mx_chan_id, btm_pair_state_descr(btm_cb.pairing_state));
+
+        rc = BTM_CMD_STARTED;
+
+        if ((btm_cb.security_mode == BTM_SEC_MODE_UNDEFINED ||
+             btm_cb.security_mode == BTM_SEC_MODE_NONE ||
+             btm_cb.security_mode == BTM_SEC_MODE_SERVICE ||
+             btm_cb.security_mode == BTM_SEC_MODE_LINK) ||
+            (BTM_SM4_KNOWN == p_dev_rec->sm4) || (BTM_SEC_IS_SM4(p_dev_rec->sm4) &&
+            (btm_sec_is_upgrade_possible(p_dev_rec, is_originator) == FALSE)))
+        {
+            /* legacy mode - local is legacy or local is lisbon/peer is legacy
+             * or SM4 with no possibility of link key upgrade */
+            if (is_originator)
+            {
+                if (((security_required & BTM_SEC_OUT_FLAGS) == 0) ||
+                    ((((security_required & BTM_SEC_OUT_FLAGS) == BTM_SEC_OUT_AUTHENTICATE) && btm_dev_authenticated(p_dev_rec))) ||
+                    ((((security_required & BTM_SEC_OUT_FLAGS) == (BTM_SEC_OUT_AUTHENTICATE | BTM_SEC_OUT_ENCRYPT)) && btm_dev_encrypted(p_dev_rec)))
+                    )
+                {
+                    rc = BTM_SUCCESS;
+                }
+            }
+            else
+            {
+                if (((security_required & BTM_SEC_IN_FLAGS) == 0) ||
+                    ((((security_required & BTM_SEC_IN_FLAGS) == BTM_SEC_IN_AUTHENTICATE) && btm_dev_authenticated(p_dev_rec))) ||
+                    (((security_required & BTM_SEC_IN_FLAGS) == BTM_SEC_IN_AUTHORIZE) && (btm_dev_authorized(p_dev_rec)||btm_serv_trusted(p_dev_rec, p_serv_rec))) ||
+                    (((security_required & BTM_SEC_IN_FLAGS) == (BTM_SEC_IN_AUTHORIZE | BTM_SEC_IN_AUTHENTICATE)) && ((btm_dev_authorized(p_dev_rec)||btm_serv_trusted(p_dev_rec, p_serv_rec)) && btm_dev_authenticated(p_dev_rec))) ||
+                    (((security_required & BTM_SEC_IN_FLAGS) == (BTM_SEC_IN_AUTHORIZE | BTM_SEC_IN_ENCRYPT)) && ((btm_dev_authorized(p_dev_rec)||btm_serv_trusted(p_dev_rec, p_serv_rec))&& btm_dev_encrypted(p_dev_rec))) ||
+                    ((((security_required & BTM_SEC_IN_FLAGS) == (BTM_SEC_IN_AUTHENTICATE | BTM_SEC_IN_ENCRYPT)) && btm_dev_encrypted(p_dev_rec)))
+                    )
+                {
+                    // Check for 16 digits (or MITM)
+                    if (((security_required & BTM_SEC_IN_MIN_16_DIGIT_PIN) == 0) ||
+                       (((security_required & BTM_SEC_IN_MIN_16_DIGIT_PIN) == BTM_SEC_IN_MIN_16_DIGIT_PIN) && btm_dev_16_digit_authenticated(p_dev_rec))) {
+                        rc = BTM_SUCCESS;
+                    }
+                }
+            }
+            if ((rc == BTM_SUCCESS) && (security_required & BTM_SEC_MODE4_LEVEL4) &&
+                (p_dev_rec->link_key_type != BTM_LKEY_TYPE_AUTH_COMB_P_256))
+            {
+                rc = BTM_CMD_STARTED;
+            }
+        }
+
+        if (rc == BTM_SUCCESS)
+        {
+            BTM_TRACE_EVENT("%s: allow to bypass, checking authorization", __FUNCTION__);
+            /* the security in BTM_SEC_IN_FLAGS is fullfilled so far, check the requirements in */
+            /* btm_sec_execute_procedure */
+            if ((is_originator && (p_serv_rec->security_flags & BTM_SEC_OUT_AUTHORIZE)) ||
+                (!is_originator && (p_serv_rec->security_flags & BTM_SEC_IN_AUTHORIZE)))
+            {
+                BTM_TRACE_EVENT("%s: still need authorization", __FUNCTION__);
+                rc = BTM_CMD_STARTED;
+            }
+        }
+
+        /* Check whether there is a pending security procedure, if so we should always queue */
+        /* the new security request */
+        if (p_dev_rec->sec_state != BTM_SEC_STATE_IDLE)
+        {
+            BTM_TRACE_EVENT("%s: There is a pending security procedure", __FUNCTION__);
+            rc = BTM_CMD_STARTED;
+        }
+        if (rc == BTM_CMD_STARTED)
+        {
+            BTM_TRACE_EVENT("%s: call btm_sec_queue_mx_request", __FUNCTION__);
+            btm_sec_queue_mx_request (bd_addr, psm,  is_originator, mx_proto_id,
+                                      mx_chan_id, p_callback, p_ref_data);
+        }
+        else /* rc == BTM_SUCCESS */
+        {
+            /* access granted */
+             if (p_callback)
+            {
+                (*p_callback) (bd_addr, transport, p_ref_data, (UINT8)rc);
+            }
+        }
+
+        BTM_TRACE_EVENT("%s: return with rc = 0x%02x in delayed state %s", __FUNCTION__, rc,
+                          btm_pair_state_descr(btm_cb.pairing_state));
+        return rc;
+    }
+
+    if ((!is_originator) && ((security_required & BTM_SEC_MODE4_LEVEL4) ||
+        (btm_cb.security_mode == BTM_SEC_MODE_SC)))
+    {
+        BOOLEAN local_supports_sc = controller_get_interface()->supports_secure_connections();
+        /* acceptor receives service connection establishment Request for */
+        /* Secure Connections Only service */
+        if (!(local_supports_sc) || !(p_dev_rec->remote_supports_secure_connections))
+        {
+            BTM_TRACE_DEBUG("%s: SC only service,local_support_for_sc %d,",
+                            "remote_support_for_sc %d: fail pairing",__FUNCTION__,
+                            local_supports_sc, p_dev_rec->remote_supports_secure_connections);
+
+            if (p_callback)
+                (*p_callback) (bd_addr, transport, (void *)p_ref_data,
+                               BTM_MODE4_LEVEL4_NOT_SUPPORTED);
+
+            return (BTM_MODE4_LEVEL4_NOT_SUPPORTED);
+        }
+    }
+
+    p_dev_rec->p_cur_service     = p_serv_rec;
+    p_dev_rec->security_required = security_required;
+
+    if (btm_cb.security_mode == BTM_SEC_MODE_SP ||
+        btm_cb.security_mode == BTM_SEC_MODE_SP_DEBUG ||
+        btm_cb.security_mode == BTM_SEC_MODE_SC)
+    {
+        if (BTM_SEC_IS_SM4(p_dev_rec->sm4))
+        {
+            if ((p_dev_rec->security_required & BTM_SEC_MODE4_LEVEL4) &&
+                (p_dev_rec->link_key_type != BTM_LKEY_TYPE_AUTH_COMB_P_256))
+            {
+                /* BTM_LKEY_TYPE_AUTH_COMB_P_256 is the only acceptable key in this case */
+                if ((p_dev_rec->sec_flags & BTM_SEC_LINK_KEY_KNOWN) != 0)
+                {
+                    p_dev_rec->sm4 |= BTM_SM4_UPGRADE;
+                }
+
+                p_dev_rec->sec_flags &= ~(BTM_SEC_LINK_KEY_KNOWN | BTM_SEC_LINK_KEY_AUTHED |
+                                          BTM_SEC_AUTHENTICATED);
+                BTM_TRACE_DEBUG("%s: sec_flags:0x%x", __FUNCTION__, p_dev_rec->sec_flags);
+            }
+            else
+            {
+                /* If we already have a link key, check if that link key is good enough */
+                btm_sec_check_upgrade(p_dev_rec, is_originator);
+            }
+        }
+    }
+
+    p_dev_rec->is_originator     = is_originator;
+    p_dev_rec->p_callback        = p_callback;
+    p_dev_rec->p_ref_data        = p_ref_data;
+
+    /* Although authentication and encryption are per connection */
+    /* authorization is per access request.  For example when serial connection */
+    /* is up and authorized and client requests to read file (access to other */
+    /* scn, we need to request user's permission again. */
+    p_dev_rec->sec_flags &= ~(BTM_SEC_AUTHORIZED);
+
+    BTM_TRACE_EVENT ("%s() proto_id:%d chan_id:%d State:%d Flags:0x%x Required:0x%x Service ID:%d",
+                      __func__, mx_proto_id, mx_chan_id, p_dev_rec->sec_state, p_dev_rec->sec_flags,
+                      p_dev_rec->security_required, p_dev_rec->p_cur_service->service_id);
+
+    if ((rc = btm_sec_execute_procedure (p_dev_rec)) != BTM_CMD_STARTED)
+    {
+        if (p_callback)
+        {
+            p_dev_rec->p_callback = NULL;
+            (*p_callback) (bd_addr,transport, p_ref_data, (UINT8)rc);
+        }
+    }
+
+    return rc;
+}
+
+/*******************************************************************************
+**
+** Function         btm_sec_conn_req
+**
+** Description      This function is when the peer device is requesting
+**                  connection
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_sec_conn_req (UINT8 *bda, UINT8 *dc)
+{
+    tBTM_SEC_DEV_REC  *p_dev_rec = btm_find_dev (bda);
+
+    /* Some device may request a connection before we are done with the HCI_Reset sequence */
+    if (!controller_get_interface()->get_is_ready())
+    {
+        BTM_TRACE_EVENT ("Security Manager: connect request when device not ready");
+        btsnd_hcic_reject_conn (bda, HCI_ERR_HOST_REJECT_DEVICE);
+        return;
+    }
+
+    /* Security guys wants us not to allow connection from not paired devices */
+
+    /* Check if connection is allowed for only paired devices */
+    if (btm_cb.connect_only_paired)
+    {
+        if (!p_dev_rec || !(p_dev_rec->sec_flags & BTM_SEC_LINK_KEY_AUTHED))
+        {
+            BTM_TRACE_EVENT ("Security Manager: connect request from non-paired device");
+            btsnd_hcic_reject_conn (bda, HCI_ERR_HOST_REJECT_DEVICE);
+            return;
+        }
+    }
+
+#if BTM_ALLOW_CONN_IF_NONDISCOVER == FALSE
+    /* If non-discoverable, only allow known devices to connect */
+    if (btm_cb.btm_inq_vars.discoverable_mode == BTM_NON_DISCOVERABLE)
+    {
+        if (!p_dev_rec)
+        {
+            BTM_TRACE_EVENT ("Security Manager: connect request from not paired device");
+            btsnd_hcic_reject_conn (bda, HCI_ERR_HOST_REJECT_DEVICE);
+            return;
+        }
+    }
+#endif
+
+    if ((btm_cb.pairing_state != BTM_PAIR_STATE_IDLE)
+        &&(btm_cb.pairing_flags & BTM_PAIR_FLAGS_WE_STARTED_DD)
+        &&(!memcmp (btm_cb.pairing_bda, bda, BD_ADDR_LEN)))
+    {
+        BTM_TRACE_EVENT ("Security Manager: reject connect request from bonding device");
+
+        /* incoming connection from bonding device is rejected */
+        btm_cb.pairing_flags |= BTM_PAIR_FLAGS_REJECTED_CONNECT;
+        btsnd_hcic_reject_conn (bda, HCI_ERR_HOST_REJECT_DEVICE);
+        return;
+    }
+
+    /* Host is not interested or approved connection.  Save BDA and DC and */
+    /* pass request to L2CAP */
+    memcpy (btm_cb.connecting_bda, bda, BD_ADDR_LEN);
+    memcpy (btm_cb.connecting_dc,  dc,  DEV_CLASS_LEN);
+
+    if (l2c_link_hci_conn_req (bda))
+    {
+        if (!p_dev_rec)
+        {
+            /* accept the connection -> allocate a device record */
+            p_dev_rec = btm_sec_alloc_dev (bda);
+        }
+        if (p_dev_rec)
+        {
+            p_dev_rec->sm4 |= BTM_SM4_CONN_PEND;
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btm_sec_bond_cancel_complete
+**
+** Description      This function is called to report bond cancel complete
+**                  event.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btm_sec_bond_cancel_complete (void)
+{
+    tBTM_SEC_DEV_REC *p_dev_rec;
+
+    if ((btm_cb.pairing_flags & BTM_PAIR_FLAGS_DISC_WHEN_DONE) ||
+        (BTM_PAIR_STATE_WAIT_LOCAL_PIN == btm_cb.pairing_state &&
+         BTM_PAIR_FLAGS_WE_STARTED_DD & btm_cb.pairing_flags) ||
+         (btm_cb.pairing_state == BTM_PAIR_STATE_GET_REM_NAME &&
+          BTM_PAIR_FLAGS_WE_CANCEL_DD & btm_cb.pairing_flags))
+    {
+        /* for dedicated bonding in legacy mode, authentication happens at "link level"
+         * btm_sec_connected is called with failed status.
+         * In theory, the code that handles is_pairing_device/TRUE should clean out security related code.
+         * However, this function may clean out the security related flags and btm_sec_connected would not know
+         * this function also needs to do proper clean up.
+         */
+        if ((p_dev_rec = btm_find_dev (btm_cb.pairing_bda)) != NULL)
+            p_dev_rec->security_required = BTM_SEC_NONE;
+        btm_sec_change_pairing_state (BTM_PAIR_STATE_IDLE);
+
+        /* Notify application that the cancel succeeded */
+        if (btm_cb.api.p_bond_cancel_cmpl_callback)
+            btm_cb.api.p_bond_cancel_cmpl_callback(BTM_SUCCESS);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btm_create_conn_cancel_complete
+**
+** Description      This function is called when the command complete message
+**                  is received from the HCI for the create connection cancel
+**                  command.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_create_conn_cancel_complete (UINT8 *p)
+{
+    UINT8       status;
+
+    STREAM_TO_UINT8 (status, p);
+    BTM_TRACE_EVENT ("btm_create_conn_cancel_complete(): in State: %s  status:%d",
+                      btm_pair_state_descr(btm_cb.pairing_state), status);
+
+    /* if the create conn cancel cmd was issued by the bond cancel,
+    ** the application needs to be notified that bond cancel succeeded
+    */
+    switch (status)
+    {
+        case HCI_SUCCESS:
+            btm_sec_bond_cancel_complete();
+            break;
+        case HCI_ERR_CONNECTION_EXISTS:
+        case HCI_ERR_NO_CONNECTION:
+        default:
+            /* Notify application of the error */
+            if (btm_cb.api.p_bond_cancel_cmpl_callback)
+                btm_cb.api.p_bond_cancel_cmpl_callback(BTM_ERR_PROCESSING);
+            break;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btm_sec_check_pending_reqs
+**
+** Description      This function is called at the end of the security procedure
+**                  to let L2CAP and RFCOMM know to re-submit any pending requests
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_sec_check_pending_reqs (void)
+{
+    if (btm_cb.pairing_state == BTM_PAIR_STATE_IDLE)
+    {
+        /* First, resubmit L2CAP requests */
+        if (btm_cb.sec_req_pending)
+        {
+            btm_cb.sec_req_pending = FALSE;
+            l2cu_resubmit_pending_sec_req (NULL);
+        }
+
+        /* Now, re-submit anything in the mux queue */
+        fixed_queue_t *bq = btm_cb.sec_pending_q;
+
+        btm_cb.sec_pending_q = fixed_queue_new(SIZE_MAX);
+
+        tBTM_SEC_QUEUE_ENTRY *p_e;
+        while ((p_e = (tBTM_SEC_QUEUE_ENTRY *)fixed_queue_try_dequeue(bq)) != NULL)
+        {
+            /* Check that the ACL is still up before starting security procedures */
+            if (btm_bda_to_acl(p_e->bd_addr, p_e->transport) != NULL)
+            {
+                if (p_e->psm != 0)
+                {
+                    BTM_TRACE_EVENT("%s PSM:0x%04x Is_Orig:%u mx_proto_id:%u mx_chan_id:%u",
+                                    __FUNCTION__, p_e->psm, p_e->is_orig,
+                                    p_e->mx_proto_id, p_e->mx_chan_id);
+
+                    btm_sec_mx_access_request (p_e->bd_addr, p_e->psm, p_e->is_orig,
+                                           p_e->mx_proto_id, p_e->mx_chan_id,
+                                           p_e->p_callback, p_e->p_ref_data);
+                }
+                else
+                {
+                    BTM_SetEncryption(p_e->bd_addr, p_e->transport, p_e->p_callback,
+                                      p_e->p_ref_data, p_e->sec_act);
+                }
+            }
+
+            osi_free(p_e);
+        }
+        fixed_queue_free(bq, NULL);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btm_sec_init
+**
+** Description      This function is on the SEC startup
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_sec_init (UINT8 sec_mode)
+{
+    btm_cb.security_mode = sec_mode;
+    memset (btm_cb.pairing_bda, 0xff, BD_ADDR_LEN);
+    btm_cb.max_collision_delay = BTM_SEC_MAX_COLLISION_DELAY;
+}
+
+/*******************************************************************************
+**
+** Function         btm_sec_device_down
+**
+** Description      This function should be called when device is disabled or
+**                  turned off
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_sec_device_down (void)
+{
+    BTM_TRACE_EVENT ("%s() State: %s", __func__, btm_pair_state_descr(btm_cb.pairing_state));
+    btm_sec_change_pairing_state (BTM_PAIR_STATE_IDLE);
+}
+
+/*******************************************************************************
+**
+** Function         btm_sec_dev_reset
+**
+** Description      This function should be called after device reset
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_sec_dev_reset (void)
+{
+    if (controller_get_interface()->supports_simple_pairing())
+    {
+        /* set the default IO capabilities */
+        btm_cb.devcb.loc_io_caps = BTM_LOCAL_IO_CAPS;
+        /* add mx service to use no security */
+        BTM_SetSecurityLevel(FALSE, "RFC_MUX", BTM_SEC_SERVICE_RFC_MUX,
+                             BTM_SEC_NONE, BT_PSM_RFCOMM, BTM_SEC_PROTO_RFCOMM, 0);
+    }
+    else
+    {
+        btm_cb.security_mode = BTM_SEC_MODE_SERVICE;
+    }
+
+    BTM_TRACE_DEBUG ("btm_sec_dev_reset sec mode: %d", btm_cb.security_mode);
+}
+
+/*******************************************************************************
+**
+** Function         btm_sec_abort_access_req
+**
+** Description      This function is called by the L2CAP or RFCOMM to abort
+**                  the pending operation.
+**
+** Parameters:      bd_addr       - Address of the peer device
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_sec_abort_access_req (BD_ADDR bd_addr)
+{
+    tBTM_SEC_DEV_REC  *p_dev_rec = btm_find_dev (bd_addr);
+
+    if (!p_dev_rec)
+        return;
+
+    if ((p_dev_rec->sec_state != BTM_SEC_STATE_AUTHORIZING)
+        && (p_dev_rec->sec_state != BTM_SEC_STATE_AUTHENTICATING))
+        return;
+
+    p_dev_rec->sec_state  = BTM_SEC_STATE_IDLE;
+    p_dev_rec->p_callback = NULL;
+}
+
+/*******************************************************************************
+**
+** Function         btm_sec_dd_create_conn
+**
+** Description      This function is called to create the ACL connection for
+**                  the dedicated boding process
+**
+** Returns          void
+**
+*******************************************************************************/
+static tBTM_STATUS btm_sec_dd_create_conn (tBTM_SEC_DEV_REC *p_dev_rec)
+{
+    tL2C_LCB *p_lcb = l2cu_find_lcb_by_bd_addr(p_dev_rec->bd_addr, BT_TRANSPORT_BR_EDR);
+    if (p_lcb && (p_lcb->link_state == LST_CONNECTED || p_lcb->link_state == LST_CONNECTING))
+    {
+       BTM_TRACE_WARNING("%s Connection already exists", __func__);
+       return BTM_CMD_STARTED;
+    }
+
+    /* Make sure an L2cap link control block is available */
+    if (!p_lcb && (p_lcb = l2cu_allocate_lcb (p_dev_rec->bd_addr, TRUE, BT_TRANSPORT_BR_EDR)) == NULL)
+    {
+        BTM_TRACE_WARNING ("Security Manager: failed allocate LCB [%02x%02x%02x%02x%02x%02x]",
+                            p_dev_rec->bd_addr[0], p_dev_rec->bd_addr[1], p_dev_rec->bd_addr[2],
+                            p_dev_rec->bd_addr[3], p_dev_rec->bd_addr[4], p_dev_rec->bd_addr[5]);
+
+        return(BTM_NO_RESOURCES);
+    }
+
+    /* set up the control block to indicated dedicated bonding */
+    btm_cb.pairing_flags |= BTM_PAIR_FLAGS_DISC_WHEN_DONE;
+
+    if (l2cu_create_conn(p_lcb, BT_TRANSPORT_BR_EDR) == FALSE)
+    {
+        BTM_TRACE_WARNING ("Security Manager: failed create  [%02x%02x%02x%02x%02x%02x]",
+                            p_dev_rec->bd_addr[0], p_dev_rec->bd_addr[1], p_dev_rec->bd_addr[2],
+                            p_dev_rec->bd_addr[3], p_dev_rec->bd_addr[4], p_dev_rec->bd_addr[5]);
+
+        l2cu_release_lcb(p_lcb);
+        return(BTM_NO_RESOURCES);
+    }
+
+    btm_acl_update_busy_level (BTM_BLI_PAGE_EVT);
+
+    BTM_TRACE_DEBUG ("Security Manager: btm_sec_dd_create_conn [%02x%02x%02x%02x%02x%02x]",
+                      p_dev_rec->bd_addr[0], p_dev_rec->bd_addr[1], p_dev_rec->bd_addr[2],
+                      p_dev_rec->bd_addr[3], p_dev_rec->bd_addr[4], p_dev_rec->bd_addr[5]);
+
+    btm_sec_change_pairing_state (BTM_PAIR_STATE_WAIT_PIN_REQ);
+
+    return(BTM_CMD_STARTED);
+}
+
+
+bool is_state_getting_name(void *data, void *context)
+{
+    tBTM_SEC_DEV_REC *p_dev_rec = data;
+
+    if (p_dev_rec->sec_state == BTM_SEC_STATE_GETTING_NAME) {
+        return false;
+    }
+    return true;
+}
+
+/*******************************************************************************
+**
+** Function         btm_sec_rmt_name_request_complete
+*
+** Description      This function is called when remote name was obtained from
+**                  the peer device
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_sec_rmt_name_request_complete (UINT8 *p_bd_addr, UINT8 *p_bd_name, UINT8 status)
+{
+    tBTM_SEC_DEV_REC *p_dev_rec;
+    int              i;
+    DEV_CLASS        dev_class;
+    UINT8            old_sec_state;
+
+    BTM_TRACE_EVENT ("btm_sec_rmt_name_request_complete");
+    if (((p_bd_addr == NULL) && !BTM_ACL_IS_CONNECTED(btm_cb.connecting_bda))
+        || ((p_bd_addr != NULL) && !BTM_ACL_IS_CONNECTED(p_bd_addr)))
+    {
+        btm_acl_resubmit_page();
+    }
+
+    /* If remote name request failed, p_bd_addr is null and we need to search */
+    /* based on state assuming that we are doing 1 at a time */
+    if (p_bd_addr)
+        p_dev_rec = btm_find_dev (p_bd_addr);
+    else
+    {
+        list_node_t *node = list_foreach(btm_cb.sec_dev_rec, is_state_getting_name, NULL);
+        if (node != NULL) {
+            p_dev_rec = list_node(node);
+            p_bd_addr = p_dev_rec->bd_addr;
+        } else {
+            p_dev_rec = NULL;
+        }
+    }
+
+    /* Commenting out trace due to obf/compilation problems.
+    */
+#if (BT_USE_TRACES == TRUE)
+    if (!p_bd_name)
+        p_bd_name = (UINT8 *)"";
+
+    if (p_dev_rec)
+    {
+        BTM_TRACE_EVENT ("%s PairState: %s  RemName: %s  status: %d State:%d  p_dev_rec: 0x%08x ", __func__,
+                          btm_pair_state_descr (btm_cb.pairing_state), p_bd_name,
+                          status, p_dev_rec->sec_state, p_dev_rec);
+    } else {
+        BTM_TRACE_EVENT ("%s PairState: %s  RemName: %s  status: %d", __func__,
+                          btm_pair_state_descr (btm_cb.pairing_state), p_bd_name,
+                          status);
+    }
+#endif
+
+    if (p_dev_rec)
+    {
+        old_sec_state = p_dev_rec->sec_state;
+        if (status == HCI_SUCCESS)
+        {
+            strlcpy((char *)p_dev_rec->sec_bd_name, (char *)p_bd_name, BTM_MAX_REM_BD_NAME_LEN);
+            p_dev_rec->sec_flags |= BTM_SEC_NAME_KNOWN;
+            BTM_TRACE_EVENT ("setting BTM_SEC_NAME_KNOWN sec_flags:0x%x", p_dev_rec->sec_flags);
+        }
+        else
+        {
+            /* Notify all clients waiting for name to be resolved even if it failed so clients can continue */
+            p_dev_rec->sec_bd_name[0] = 0;
+        }
+
+        if (p_dev_rec->sec_state == BTM_SEC_STATE_GETTING_NAME)
+            p_dev_rec->sec_state = BTM_SEC_STATE_IDLE;
+
+        /* Notify all clients waiting for name to be resolved */
+        for (i = 0;i < BTM_SEC_MAX_RMT_NAME_CALLBACKS; i++)
+        {
+            if (btm_cb.p_rmt_name_callback[i] && p_bd_addr)
+                (*btm_cb.p_rmt_name_callback[i])(p_bd_addr, p_dev_rec->dev_class,
+                                                 p_dev_rec->sec_bd_name);
+        }
+    } else {
+        dev_class[0] = 0;
+        dev_class[1] = 0;
+        dev_class[2] = 0;
+
+        /* Notify all clients waiting for name to be resolved even if not found so clients can continue */
+        for (i = 0;i < BTM_SEC_MAX_RMT_NAME_CALLBACKS; i++)
+        {
+            if (btm_cb.p_rmt_name_callback[i] && p_bd_addr)
+                (*btm_cb.p_rmt_name_callback[i])(p_bd_addr, dev_class, (UINT8 *)"");
+        }
+
+        return;
+    }
+
+    /* If we were delaying asking UI for a PIN because name was not resolved, ask now */
+    if ( (btm_cb.pairing_state == BTM_PAIR_STATE_WAIT_LOCAL_PIN) && p_bd_addr
+         &&  (memcmp (btm_cb.pairing_bda, p_bd_addr, BD_ADDR_LEN) == 0) )
+    {
+        BTM_TRACE_EVENT ("%s() delayed pin now being requested flags:0x%x, (p_pin_callback=0x%p)",
+            __func__, btm_cb.pairing_flags, btm_cb.api.p_pin_callback);
+
+        if ((btm_cb.pairing_flags & BTM_PAIR_FLAGS_PIN_REQD) == 0 && btm_cb.api.p_pin_callback)
+        {
+            BTM_TRACE_EVENT ("%s() calling pin_callback", __func__);
+            btm_cb.pairing_flags |= BTM_PAIR_FLAGS_PIN_REQD;
+            (*btm_cb.api.p_pin_callback) (p_dev_rec->bd_addr, p_dev_rec->dev_class, p_bd_name,
+                    (p_dev_rec->p_cur_service==NULL) ? FALSE
+                     : (p_dev_rec->p_cur_service->security_flags & BTM_SEC_IN_MIN_16_DIGIT_PIN));
+        }
+
+        /* Set the same state again to force the timer to be restarted */
+        btm_sec_change_pairing_state (BTM_PAIR_STATE_WAIT_LOCAL_PIN);
+        return;
+    }
+
+    /* Check if we were delaying bonding because name was not resolved */
+    if ( btm_cb.pairing_state == BTM_PAIR_STATE_GET_REM_NAME)
+    {
+        if (p_bd_addr && memcmp (btm_cb.pairing_bda, p_bd_addr, BD_ADDR_LEN) == 0)
+        {
+            BTM_TRACE_EVENT ("%s() continue bonding sm4: 0x%04x, status:0x%x", __func__, p_dev_rec->sm4, status);
+            if(btm_cb.pairing_flags & BTM_PAIR_FLAGS_WE_CANCEL_DD)
+            {
+                btm_sec_bond_cancel_complete();
+                return;
+            }
+
+            if (status != HCI_SUCCESS)
+            {
+                btm_sec_change_pairing_state (BTM_PAIR_STATE_IDLE);
+
+                if (btm_cb.api.p_auth_complete_callback)
+                    (*btm_cb.api.p_auth_complete_callback) (p_dev_rec->bd_addr,  p_dev_rec->dev_class,
+                                                            p_dev_rec->sec_bd_name, status);
+                return;
+            }
+
+            /* if peer is very old legacy devices, HCI_RMT_HOST_SUP_FEAT_NOTIFY_EVT is not reported */
+            if (BTM_SEC_IS_SM4_UNKNOWN(p_dev_rec->sm4))
+            {
+                /* set the KNOWN flag only if BTM_PAIR_FLAGS_REJECTED_CONNECT is not set.*/
+                /* If it is set, there may be a race condition */
+                BTM_TRACE_DEBUG ("%s IS_SM4_UNKNOWN Flags:0x%04x", __func__,
+                                   btm_cb.pairing_flags);
+                if ((btm_cb.pairing_flags & BTM_PAIR_FLAGS_REJECTED_CONNECT) == 0)
+                    p_dev_rec->sm4 |= BTM_SM4_KNOWN;
+            }
+
+            BTM_TRACE_DEBUG("%s, SM4 Value: %x, Legacy:%d,IS SM4:%d, Unknown:%d",__FUNCTION__,
+                p_dev_rec->sm4, BTM_SEC_IS_SM4_LEGACY(p_dev_rec->sm4),
+                BTM_SEC_IS_SM4(p_dev_rec->sm4),BTM_SEC_IS_SM4_UNKNOWN(p_dev_rec->sm4));
+
+            /* BT 2.1 or carkit, bring up the connection to force the peer to request PIN.
+            ** Else prefetch (btm_sec_check_prefetch_pin will do the prefetching if needed)
+            */
+            if ((p_dev_rec->sm4 != BTM_SM4_KNOWN) || !btm_sec_check_prefetch_pin(p_dev_rec))
+            {
+                /* if we rejected incoming connection request, we have to wait HCI_Connection_Complete event */
+                /*  before originating  */
+                if (btm_cb.pairing_flags & BTM_PAIR_FLAGS_REJECTED_CONNECT)
+                {
+                    BTM_TRACE_WARNING ("%s: waiting HCI_Connection_Complete after rejecting connection", __func__);
+                }
+                /* Both we and the peer are 2.1 - continue to create connection */
+                else if (btm_sec_dd_create_conn(p_dev_rec) != BTM_CMD_STARTED)
+                {
+                    BTM_TRACE_WARNING ("%s: failed to start connection", __func__);
+
+                    btm_sec_change_pairing_state (BTM_PAIR_STATE_IDLE);
+
+                    if (btm_cb.api.p_auth_complete_callback)
+                    (*btm_cb.api.p_auth_complete_callback) (p_dev_rec->bd_addr,  p_dev_rec->dev_class,
+                                                            p_dev_rec->sec_bd_name, HCI_ERR_MEMORY_FULL);
+                }
+            }
+            return;
+        } else {
+            BTM_TRACE_WARNING ("%s: wrong BDA, retry with pairing BDA", __func__);
+            BTM_ReadRemoteDeviceName (btm_cb.pairing_bda, NULL, BT_TRANSPORT_BR_EDR);
+            return;
+        }
+    }
+
+    /* check if we were delaying link_key_callback because name was not resolved */
+    if (p_dev_rec->link_key_not_sent)
+    {
+        /* If HCI connection complete has not arrived, wait for it */
+        if (p_dev_rec->hci_handle == BTM_SEC_INVALID_HANDLE)
+            return;
+
+        p_dev_rec->link_key_not_sent = FALSE;
+        btm_send_link_key_notif(p_dev_rec);
+
+        /* If its not us who perform authentication, we should tell stackserver */
+        /* that some authentication has been completed                          */
+        /* This is required when different entities receive link notification and auth complete */
+        if (!(p_dev_rec->security_required & BTM_SEC_OUT_AUTHENTICATE))
+        {
+            if (btm_cb.api.p_auth_complete_callback)
+                (*btm_cb.api.p_auth_complete_callback) (p_dev_rec->bd_addr,
+                                                        p_dev_rec->dev_class,
+                                                        p_dev_rec->sec_bd_name, HCI_SUCCESS);
+
+        }
+    }
+
+    /* If this is a bonding procedure can disconnect the link now */
+    if ((btm_cb.pairing_flags & BTM_PAIR_FLAGS_WE_STARTED_DD)
+        && (p_dev_rec->sec_flags & BTM_SEC_AUTHENTICATED))
+    {
+        BTM_TRACE_WARNING ("btm_sec_rmt_name_request_complete (none/ce)");
+        p_dev_rec->security_required &= ~(BTM_SEC_OUT_AUTHENTICATE);
+        l2cu_start_post_bond_timer(p_dev_rec->hci_handle);
+        return;
+    }
+
+    if (old_sec_state != BTM_SEC_STATE_GETTING_NAME)
+        return;
+
+    /* If get name failed, notify the waiting layer */
+    if (status != HCI_SUCCESS)
+    {
+        btm_sec_dev_rec_cback_event  (p_dev_rec, BTM_ERR_PROCESSING, FALSE);
+        return;
+    }
+
+    if (p_dev_rec->sm4 & BTM_SM4_REQ_PEND)
+    {
+        BTM_TRACE_EVENT ("waiting for remote features!!");
+        return;
+    }
+
+    /* Remote Name succeeded, execute the next security procedure, if any */
+    status = (UINT8)btm_sec_execute_procedure (p_dev_rec);
+
+    /* If result is pending reply from the user or from the device is pending */
+    if (status == BTM_CMD_STARTED)
+        return;
+
+    /* There is no next procedure or start of procedure failed, notify the waiting layer */
+    btm_sec_dev_rec_cback_event  (p_dev_rec, status, FALSE);
+}
+
+/*******************************************************************************
+**
+** Function         btm_sec_rmt_host_support_feat_evt
+**
+** Description      This function is called when the
+**                  HCI_RMT_HOST_SUP_FEAT_NOTIFY_EVT is received
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_sec_rmt_host_support_feat_evt (UINT8 *p)
+{
+    tBTM_SEC_DEV_REC *p_dev_rec;
+    BD_ADDR         bd_addr;        /* peer address */
+    BD_FEATURES     features;
+
+    STREAM_TO_BDADDR (bd_addr, p);
+    p_dev_rec = btm_find_or_alloc_dev (bd_addr);
+
+    BTM_TRACE_EVENT ("btm_sec_rmt_host_support_feat_evt  sm4: 0x%x  p[0]: 0x%x", p_dev_rec->sm4, p[0]);
+
+    if (BTM_SEC_IS_SM4_UNKNOWN(p_dev_rec->sm4))
+    {
+        p_dev_rec->sm4 = BTM_SM4_KNOWN;
+        STREAM_TO_ARRAY(features, p, HCI_FEATURE_BYTES_PER_PAGE);
+        if (HCI_SSP_HOST_SUPPORTED(features))
+        {
+            p_dev_rec->sm4 = BTM_SM4_TRUE;
+        }
+        BTM_TRACE_EVENT ("btm_sec_rmt_host_support_feat_evt sm4: 0x%x features[0]: 0x%x", p_dev_rec->sm4, features[0]);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btm_io_capabilities_req
+**
+** Description      This function is called when LM request for the IO
+**                  capability of the local device and
+**                  if the OOB data is present for the device in the event
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_io_capabilities_req (UINT8 *p)
+{
+    tBTM_SP_IO_REQ  evt_data;
+    UINT8           err_code = 0;
+    tBTM_SEC_DEV_REC *p_dev_rec;
+    BOOLEAN         is_orig = TRUE;
+    UINT8           callback_rc = BTM_SUCCESS;
+
+    STREAM_TO_BDADDR (evt_data.bd_addr, p);
+
+    /* setup the default response according to compile options */
+    /* assume that the local IO capability does not change
+     * loc_io_caps is initialized with the default value */
+    evt_data.io_cap = btm_cb.devcb.loc_io_caps;
+    evt_data.oob_data = BTM_OOB_NONE;
+    evt_data.auth_req = BTM_DEFAULT_AUTH_REQ;
+
+    BTM_TRACE_EVENT("%s: State: %s", __FUNCTION__, btm_pair_state_descr(btm_cb.pairing_state));
+
+    p_dev_rec = btm_find_or_alloc_dev (evt_data.bd_addr);
+
+    BTM_TRACE_DEBUG("%s:Security mode: %d, Num Read Remote Feat pages: %d", __FUNCTION__,
+                      btm_cb.security_mode, p_dev_rec->num_read_pages);
+
+    if ((btm_cb.security_mode == BTM_SEC_MODE_SC) && (p_dev_rec->num_read_pages == 0))
+    {
+        BTM_TRACE_EVENT("%s: Device security mode is SC only.",
+                         "To continue need to know remote features.", __FUNCTION__);
+
+        p_dev_rec->remote_features_needed = TRUE;
+        return;
+    }
+
+    p_dev_rec->sm4 |= BTM_SM4_TRUE;
+
+    BTM_TRACE_EVENT("%s: State: %s  Flags: 0x%04x  p_cur_service: 0x%08x",
+                     __FUNCTION__, btm_pair_state_descr(btm_cb.pairing_state),
+                     btm_cb.pairing_flags, p_dev_rec->p_cur_service);
+
+    if (p_dev_rec->p_cur_service)
+    {
+        BTM_TRACE_EVENT("%s: cur_service psm: 0x%04x, security_flags: 0x%04x",
+                         __FUNCTION__, p_dev_rec->p_cur_service->psm,
+                         p_dev_rec->p_cur_service->security_flags);
+    }
+
+    switch (btm_cb.pairing_state)
+    {
+        /* initiator connecting */
+        case BTM_PAIR_STATE_IDLE:
+            //TODO: Handle Idle pairing state
+            //security_required = p_dev_rec->security_required;
+            break;
+
+        /* received IO capability response already->acceptor */
+        case BTM_PAIR_STATE_INCOMING_SSP:
+            is_orig = FALSE;
+
+            if (btm_cb.pairing_flags & BTM_PAIR_FLAGS_PEER_STARTED_DD)
+            {
+                /* acceptor in dedicated bonding */
+                evt_data.auth_req = BTM_DEFAULT_DD_AUTH_REQ;
+            }
+            break;
+
+        /* initiator, at this point it is expected to be dedicated bonding
+        initiated by local device */
+        case BTM_PAIR_STATE_WAIT_PIN_REQ:
+            if (!memcmp (evt_data.bd_addr, btm_cb.pairing_bda, BD_ADDR_LEN))
+            {
+                evt_data.auth_req = BTM_DEFAULT_DD_AUTH_REQ;
+            }
+            else
+            {
+                err_code = HCI_ERR_HOST_BUSY_PAIRING;
+            }
+            break;
+
+        /* any other state is unexpected */
+        default:
+            err_code = HCI_ERR_HOST_BUSY_PAIRING;
+            BTM_TRACE_ERROR("%s: Unexpected Pairing state received %d", __FUNCTION__,
+                             btm_cb.pairing_state);
+            break;
+    }
+
+    if (btm_cb.pairing_disabled)
+    {
+        /* pairing is not allowed */
+        BTM_TRACE_DEBUG("%s: Pairing is not allowed -> fail pairing.", __FUNCTION__);
+        err_code = HCI_ERR_PAIRING_NOT_ALLOWED;
+    }
+    else if (btm_cb.security_mode == BTM_SEC_MODE_SC)
+    {
+        BOOLEAN local_supports_sc = controller_get_interface()->supports_secure_connections();
+        /* device in Secure Connections Only mode */
+        if (!(local_supports_sc) || !(p_dev_rec->remote_supports_secure_connections))
+        {
+            BTM_TRACE_DEBUG("%s: SC only service, local_support_for_sc %d,",
+                            " remote_support_for_sc 0x%02x -> fail pairing", __FUNCTION__,
+                            local_supports_sc, p_dev_rec->remote_supports_secure_connections);
+
+            err_code = HCI_ERR_PAIRING_NOT_ALLOWED;
+        }
+    }
+
+    if (err_code != 0)
+    {
+/* coverity[uninit_use_in_call]
+Event uninit_use_in_call: Using uninitialized element of array "evt_data.bd_addr" in call to function "memcmp"
+False-positive: evt_data.bd_addr is set at the beginning with:     STREAM_TO_BDADDR (evt_data.bd_addr, p);
+*/
+        btsnd_hcic_io_cap_req_neg_reply(evt_data.bd_addr, err_code);
+        return;
+    }
+
+    evt_data.is_orig = is_orig;
+
+    if (is_orig)
+    {
+        /* local device initiated the pairing non-bonding -> use p_cur_service */
+        if (!(btm_cb.pairing_flags & BTM_PAIR_FLAGS_WE_STARTED_DD) &&
+            p_dev_rec->p_cur_service &&
+            (p_dev_rec->p_cur_service->security_flags & BTM_SEC_OUT_AUTHENTICATE))
+        {
+            if (btm_cb.security_mode == BTM_SEC_MODE_SC)
+            {
+                /* SC only mode device requires MITM protection */
+                evt_data.auth_req = BTM_AUTH_SP_YES;
+            }
+            else
+            {
+                evt_data.auth_req = (p_dev_rec->p_cur_service->security_flags &
+                                     BTM_SEC_OUT_MITM)? BTM_AUTH_SP_YES : BTM_AUTH_SP_NO;
+            }
+        }
+    }
+
+    /* Notify L2CAP to increase timeout */
+    l2c_pin_code_request (evt_data.bd_addr);
+
+    memcpy (btm_cb.pairing_bda, evt_data.bd_addr, BD_ADDR_LEN);
+
+/* coverity[uninit_use_in_call]
+Event uninit_use_in_call: Using uninitialized element of array "evt_data.bd_addr" in call to function "memcmp"
+False-positive: False-positive: evt_data.bd_addr is set at the beginning with:     STREAM_TO_BDADDR (evt_data.bd_addr, p);
+*/
+    if (!memcmp (evt_data.bd_addr, btm_cb.connecting_bda, BD_ADDR_LEN))
+        memcpy (p_dev_rec->dev_class, btm_cb.connecting_dc, DEV_CLASS_LEN);
+
+    btm_sec_change_pairing_state (BTM_PAIR_STATE_WAIT_LOCAL_IOCAPS);
+
+    callback_rc = BTM_SUCCESS;
+    if (p_dev_rec->sm4 & BTM_SM4_UPGRADE)
+    {
+        p_dev_rec->sm4 &= ~BTM_SM4_UPGRADE;
+
+        /* link key upgrade: always use SPGB_YES - assuming we want to save the link key */
+        evt_data.auth_req = BTM_AUTH_SPGB_YES;
+    }
+    else if (btm_cb.api.p_sp_callback)
+    {
+        /* the callback function implementation may change the IO capability... */
+        callback_rc = (*btm_cb.api.p_sp_callback) (BTM_SP_IO_REQ_EVT, (tBTM_SP_EVT_DATA *)&evt_data);
+    }
+
+    if ((callback_rc == BTM_SUCCESS) || (BTM_OOB_UNKNOWN != evt_data.oob_data))
+    {
+        if ((btm_cb.pairing_flags & BTM_PAIR_FLAGS_WE_STARTED_DD))
+        {
+            evt_data.auth_req = (BTM_AUTH_DD_BOND | (evt_data.auth_req & BTM_AUTH_YN_BIT));
+        }
+
+        if (btm_cb.security_mode == BTM_SEC_MODE_SC)
+        {
+            /* At this moment we know that both sides are SC capable, device in */
+            /* SC only mode requires MITM for any service so let's set MITM bit */
+            evt_data.auth_req |= BTM_AUTH_YN_BIT;
+            BTM_TRACE_DEBUG("%s: for device in \"SC only\" mode set auth_req to 0x%02x",
+                             __FUNCTION__, evt_data.auth_req);
+        }
+
+        /* if the user does not indicate "reply later" by setting the oob_data to unknown */
+        /* send the response right now. Save the current IO capability in the control block */
+        btm_cb.devcb.loc_auth_req   = evt_data.auth_req;
+        btm_cb.devcb.loc_io_caps    = evt_data.io_cap;
+
+        BTM_TRACE_EVENT("%s: State: %s  IO_CAP:%d oob_data:%d auth_req:%d",
+                         __FUNCTION__, btm_pair_state_descr(btm_cb.pairing_state), evt_data.io_cap,
+                         evt_data.oob_data, evt_data.auth_req);
+
+        btsnd_hcic_io_cap_req_reply(evt_data.bd_addr, evt_data.io_cap,
+                                    evt_data.oob_data, evt_data.auth_req);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btm_io_capabilities_rsp
+**
+** Description      This function is called when the IO capability of the
+**                  specified device is received
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_io_capabilities_rsp (UINT8 *p)
+{
+    tBTM_SEC_DEV_REC *p_dev_rec;
+    tBTM_SP_IO_RSP evt_data;
+
+    STREAM_TO_BDADDR (evt_data.bd_addr, p);
+    STREAM_TO_UINT8 (evt_data.io_cap, p);
+    STREAM_TO_UINT8 (evt_data.oob_data, p);
+    STREAM_TO_UINT8 (evt_data.auth_req, p);
+
+    /* Allocate a new device record or reuse the oldest one */
+    p_dev_rec = btm_find_or_alloc_dev (evt_data.bd_addr);
+
+    /* If no security is in progress, this indicates incoming security */
+    if (btm_cb.pairing_state == BTM_PAIR_STATE_IDLE)
+    {
+        memcpy (btm_cb.pairing_bda, evt_data.bd_addr, BD_ADDR_LEN);
+
+        btm_sec_change_pairing_state (BTM_PAIR_STATE_INCOMING_SSP);
+
+        /* Make sure we reset the trusted mask to help against attacks */
+        BTM_SEC_CLR_TRUSTED_DEVICE(p_dev_rec->trusted_mask);
+
+        /* work around for FW bug */
+        btm_inq_stop_on_ssp();
+    }
+
+    /* Notify L2CAP to increase timeout */
+    l2c_pin_code_request (evt_data.bd_addr);
+
+    /* We must have a device record here.
+     * Use the connecting device's CoD for the connection */
+/* coverity[uninit_use_in_call]
+Event uninit_use_in_call: Using uninitialized element of array "evt_data.bd_addr" in call to function "memcmp"
+FALSE-POSITIVE error from Coverity test-tool. evt_data.bd_addr is set at the beginning with:     STREAM_TO_BDADDR (evt_data.bd_addr, p);
+*/
+    if (!memcmp (evt_data.bd_addr, btm_cb.connecting_bda, BD_ADDR_LEN))
+        memcpy (p_dev_rec->dev_class, btm_cb.connecting_dc, DEV_CLASS_LEN);
+
+    /* peer sets dedicated bonding bit and we did not initiate dedicated bonding */
+    if (btm_cb.pairing_state == BTM_PAIR_STATE_INCOMING_SSP /* peer initiated bonding */
+        && (evt_data.auth_req & BTM_AUTH_DD_BOND) )            /* and dedicated bonding bit is set */
+    {
+        btm_cb.pairing_flags |= BTM_PAIR_FLAGS_PEER_STARTED_DD;
+    }
+
+    /* save the IO capability in the device record */
+    p_dev_rec->rmt_io_caps  = evt_data.io_cap;
+    p_dev_rec->rmt_auth_req = evt_data.auth_req;
+
+    if (btm_cb.api.p_sp_callback)
+        (*btm_cb.api.p_sp_callback) (BTM_SP_IO_RSP_EVT, (tBTM_SP_EVT_DATA *)&evt_data);
+}
+
+/*******************************************************************************
+**
+** Function         btm_proc_sp_req_evt
+**
+** Description      This function is called to process/report
+**                  HCI_USER_CONFIRMATION_REQUEST_EVT
+**                  or HCI_USER_PASSKEY_REQUEST_EVT
+**                  or HCI_USER_PASSKEY_NOTIFY_EVT
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_proc_sp_req_evt (tBTM_SP_EVT event, UINT8 *p)
+{
+    tBTM_STATUS status = BTM_ERR_PROCESSING;
+    tBTM_SP_EVT_DATA evt_data;
+    UINT8               *p_bda = evt_data.cfm_req.bd_addr;
+    tBTM_SEC_DEV_REC *p_dev_rec;
+
+    /* All events start with bd_addr */
+    STREAM_TO_BDADDR (p_bda, p);
+
+    BTM_TRACE_EVENT ("btm_proc_sp_req_evt() BDA: %08x%04x event: 0x%x, State: %s",
+                      (p_bda[0]<<24) + (p_bda[1]<<16) + (p_bda[2]<<8) + p_bda[3], (p_bda[4] << 8) + p_bda[5],
+                      event, btm_pair_state_descr(btm_cb.pairing_state));
+
+    if ( ((p_dev_rec = btm_find_dev (p_bda)) != NULL)
+         &&  (btm_cb.pairing_state != BTM_PAIR_STATE_IDLE)
+         &&  (memcmp (btm_cb.pairing_bda, p_bda, BD_ADDR_LEN) == 0) )
+    {
+        memcpy (evt_data.cfm_req.bd_addr, p_dev_rec->bd_addr, BD_ADDR_LEN);
+        memcpy (evt_data.cfm_req.dev_class, p_dev_rec->dev_class, DEV_CLASS_LEN);
+
+        strlcpy((char *)evt_data.cfm_req.bd_name, (char *)p_dev_rec->sec_bd_name, BTM_MAX_REM_BD_NAME_LEN);
+
+        switch (event)
+        {
+            case BTM_SP_CFM_REQ_EVT:
+                /* Numeric confirmation. Need user to conf the passkey */
+                btm_sec_change_pairing_state (BTM_PAIR_STATE_WAIT_NUMERIC_CONFIRM);
+
+                /* The device record must be allocated in the "IO cap exchange" step */
+                STREAM_TO_UINT32 (evt_data.cfm_req.num_val, p);
+
+                evt_data.cfm_req.just_works = TRUE;
+
+                /* process user confirm req in association with the auth_req param */
+#if (BTM_LOCAL_IO_CAPS == BTM_IO_CAP_IO)
+                if ( (p_dev_rec->rmt_io_caps == BTM_IO_CAP_IO)
+                     &&  (btm_cb.devcb.loc_io_caps == BTM_IO_CAP_IO)
+                     &&  ((p_dev_rec->rmt_auth_req & BTM_AUTH_SP_YES) || (btm_cb.devcb.loc_auth_req & BTM_AUTH_SP_YES)) )
+                {
+                    /* Both devices are DisplayYesNo and one or both devices want to authenticate
+                       -> use authenticated link key */
+                    evt_data.cfm_req.just_works = FALSE;
+                }
+#endif
+                BTM_TRACE_DEBUG ("btm_proc_sp_req_evt()  just_works:%d, io loc:%d, rmt:%d, auth loc:%d, rmt:%d",
+                                  evt_data.cfm_req.just_works, btm_cb.devcb.loc_io_caps, p_dev_rec->rmt_io_caps,
+                                  btm_cb.devcb.loc_auth_req, p_dev_rec->rmt_auth_req);
+
+                evt_data.cfm_req.loc_auth_req   = btm_cb.devcb.loc_auth_req;
+                evt_data.cfm_req.rmt_auth_req   = p_dev_rec->rmt_auth_req;
+                evt_data.cfm_req.loc_io_caps    = btm_cb.devcb.loc_io_caps;
+                evt_data.cfm_req.rmt_io_caps    = p_dev_rec->rmt_io_caps;
+                break;
+
+            case BTM_SP_KEY_NOTIF_EVT:
+                /* Passkey notification (other side is a keyboard) */
+                STREAM_TO_UINT32 (evt_data.key_notif.passkey, p);
+
+                BTM_TRACE_DEBUG ("BTM_SP_KEY_NOTIF_EVT:  passkey: %u", evt_data.key_notif.passkey);
+
+                btm_sec_change_pairing_state (BTM_PAIR_STATE_WAIT_AUTH_COMPLETE);
+                break;
+
+#if (BTM_LOCAL_IO_CAPS != BTM_IO_CAP_NONE)
+            case BTM_SP_KEY_REQ_EVT:
+                /* HCI_USER_PASSKEY_REQUEST_EVT */
+                btm_sec_change_pairing_state (BTM_PAIR_STATE_KEY_ENTRY);
+                break;
+#endif
+        }
+
+        if (btm_cb.api.p_sp_callback)
+        {
+            status = (*btm_cb.api.p_sp_callback) (event, (tBTM_SP_EVT_DATA *)&evt_data);
+            if (status != BTM_NOT_AUTHORIZED)
+            {
+                return;
+            }
+            /* else BTM_NOT_AUTHORIZED means when the app wants to reject the req right now */
+        }
+        else if ( (event == BTM_SP_CFM_REQ_EVT) && (evt_data.cfm_req.just_works == TRUE) )
+        {
+            /* automatically reply with just works if no sp_cback */
+            status = BTM_SUCCESS;
+        }
+
+        if (event == BTM_SP_CFM_REQ_EVT)
+        {
+            BTM_TRACE_DEBUG ("calling BTM_ConfirmReqReply with status: %d", status);
+            BTM_ConfirmReqReply (status, p_bda);
+        }
+#if (BTM_LOCAL_IO_CAPS != BTM_IO_CAP_NONE)
+        else if (event == BTM_SP_KEY_REQ_EVT)
+        {
+            BTM_PasskeyReqReply(status, p_bda, 0);
+        }
+#endif
+        return;
+    }
+
+    /* Something bad. we can only fail this connection */
+    btm_cb.acl_disc_reason = HCI_ERR_HOST_REJECT_SECURITY;
+
+    if (BTM_SP_CFM_REQ_EVT == event)
+    {
+        btsnd_hcic_user_conf_reply (p_bda, FALSE);
+    }
+    else if (BTM_SP_KEY_NOTIF_EVT == event)
+    {
+        /* do nothing -> it very unlikely to happen.
+        This event is most likely to be received by a HID host when it first connects to a HID device.
+        Usually the Host initiated the connection in this case.
+        On Mobile platforms, if there's a security process happening,
+        the host probably can not initiate another connection.
+        BTW (PC) is another story.  */
+        if (NULL != (p_dev_rec = btm_find_dev (p_bda)) )
+        {
+            btm_sec_disconnect (p_dev_rec->hci_handle, HCI_ERR_AUTH_FAILURE);
+        }
+    }
+#if (BTM_LOCAL_IO_CAPS != BTM_IO_CAP_NONE)
+    else
+    {
+        btsnd_hcic_user_passkey_neg_reply(p_bda);
+    }
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         btm_keypress_notif_evt
+**
+** Description      This function is called when a key press notification is
+**                  received
+**
+** Returns          void
+**
+*******************************************************************************/
+void  btm_keypress_notif_evt (UINT8 *p)
+{
+    tBTM_SP_KEYPRESS    evt_data;
+    UINT8 *p_bda;
+
+    /* parse & report BTM_SP_KEYPRESS_EVT */
+    if (btm_cb.api.p_sp_callback)
+    {
+        p_bda = evt_data.bd_addr;
+
+        STREAM_TO_BDADDR (p_bda, p);
+        evt_data.notif_type = *p;
+
+        (*btm_cb.api.p_sp_callback) (BTM_SP_KEYPRESS_EVT, (tBTM_SP_EVT_DATA *)&evt_data);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btm_simple_pair_complete
+**
+** Description      This function is called when simple pairing process is
+**                  complete
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_simple_pair_complete (UINT8 *p)
+{
+    tBTM_SP_COMPLT  evt_data;
+    tBTM_SEC_DEV_REC *p_dev_rec;
+    UINT8           status;
+    BOOLEAN         disc = FALSE;
+
+    status = *p++;
+    STREAM_TO_BDADDR (evt_data.bd_addr, p);
+
+    if ((p_dev_rec = btm_find_dev (evt_data.bd_addr)) == NULL)
+    {
+        BTM_TRACE_ERROR ("btm_simple_pair_complete() with unknown BDA: %08x%04x",
+                          (evt_data.bd_addr[0]<<24) + (evt_data.bd_addr[1]<<16) + (evt_data.bd_addr[2]<<8) + evt_data.bd_addr[3],
+                          (evt_data.bd_addr[4] << 8) + evt_data.bd_addr[5]);
+        return;
+    }
+
+    BTM_TRACE_EVENT ("btm_simple_pair_complete()  Pair State: %s  Status:%d  sec_state: %u",
+                      btm_pair_state_descr(btm_cb.pairing_state),  status, p_dev_rec->sec_state);
+
+    evt_data.status = BTM_ERR_PROCESSING;
+    if (status == HCI_SUCCESS)
+    {
+        evt_data.status = BTM_SUCCESS;
+        p_dev_rec->sec_flags |= BTM_SEC_AUTHENTICATED;
+    }
+    else
+    {
+        if (status == HCI_ERR_PAIRING_NOT_ALLOWED)
+        {
+            /* The test spec wants the peer device to get this failure code. */
+            btm_sec_change_pairing_state (BTM_PAIR_STATE_WAIT_DISCONNECT);
+
+            /* Change the timer to 1 second */
+            alarm_set_on_queue(btm_cb.pairing_timer, BT_1SEC_TIMEOUT_MS,
+                               btm_sec_pairing_timeout, NULL,
+                               btu_general_alarm_queue);
+        }
+        else if (memcmp (btm_cb.pairing_bda, evt_data.bd_addr, BD_ADDR_LEN) == 0)
+        {
+            /* stop the timer */
+            alarm_cancel(btm_cb.pairing_timer);
+
+            if (p_dev_rec->sec_state != BTM_SEC_STATE_AUTHENTICATING)
+            {
+                /* the initiating side: will receive auth complete event. disconnect ACL at that time */
+                disc = TRUE;
+            }
+        }
+        else
+            disc = TRUE;
+    }
+
+    /* Let the pairing state stay active, p_auth_complete_callback will report the failure */
+    memcpy (evt_data.bd_addr, p_dev_rec->bd_addr, BD_ADDR_LEN);
+    memcpy (evt_data.dev_class, p_dev_rec->dev_class, DEV_CLASS_LEN);
+
+    if (btm_cb.api.p_sp_callback)
+        (*btm_cb.api.p_sp_callback) (BTM_SP_COMPLT_EVT, (tBTM_SP_EVT_DATA *)&evt_data);
+
+    if (disc)
+    {
+        /* simple pairing failed */
+        /* Avoid sending disconnect on HCI_ERR_PEER_USER */
+        if ((status != HCI_ERR_PEER_USER) && (status != HCI_ERR_CONN_CAUSE_LOCAL_HOST))
+        {
+            btm_sec_send_hci_disconnect (p_dev_rec, HCI_ERR_AUTH_FAILURE, p_dev_rec->hci_handle);
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btm_rem_oob_req
+**
+** Description      This function is called to process/report
+**                  HCI_REMOTE_OOB_DATA_REQUEST_EVT
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_rem_oob_req (UINT8 *p)
+{
+    UINT8 *p_bda;
+    tBTM_SP_RMT_OOB  evt_data;
+    tBTM_SEC_DEV_REC *p_dev_rec;
+    BT_OCTET16      c;
+    BT_OCTET16      r;
+
+    p_bda = evt_data.bd_addr;
+
+    STREAM_TO_BDADDR (p_bda, p);
+
+    BTM_TRACE_EVENT ("btm_rem_oob_req() BDA: %02x:%02x:%02x:%02x:%02x:%02x",
+                      p_bda[0], p_bda[1], p_bda[2], p_bda[3], p_bda[4], p_bda[5]);
+
+    if ( (NULL != (p_dev_rec = btm_find_dev (p_bda))) &&
+         btm_cb.api.p_sp_callback)
+    {
+        memcpy (evt_data.bd_addr, p_dev_rec->bd_addr, BD_ADDR_LEN);
+        memcpy (evt_data.dev_class, p_dev_rec->dev_class, DEV_CLASS_LEN);
+        strlcpy((char *)evt_data.bd_name, (char *)p_dev_rec->sec_bd_name, BTM_MAX_REM_BD_NAME_LEN);
+
+        btm_sec_change_pairing_state(BTM_PAIR_STATE_WAIT_LOCAL_OOB_RSP);
+        if ((*btm_cb.api.p_sp_callback) (BTM_SP_RMT_OOB_EVT, (tBTM_SP_EVT_DATA *)&evt_data) == BTM_NOT_AUTHORIZED)
+        {
+            BTM_RemoteOobDataReply(TRUE, p_bda, c, r);
+        }
+        return;
+    }
+
+    /* something bad. we can only fail this connection */
+    btm_cb.acl_disc_reason = HCI_ERR_HOST_REJECT_SECURITY;
+    btsnd_hcic_rem_oob_neg_reply (p_bda);
+}
+
+/*******************************************************************************
+**
+** Function         btm_read_local_oob_complete
+**
+** Description      This function is called when read local oob data is
+**                  completed by the LM
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_read_local_oob_complete (UINT8 *p)
+{
+    tBTM_SP_LOC_OOB evt_data;
+    UINT8           status = *p++;
+
+    BTM_TRACE_EVENT ("btm_read_local_oob_complete:%d", status);
+    if (status == HCI_SUCCESS)
+    {
+        evt_data.status = BTM_SUCCESS;
+        STREAM_TO_ARRAY16(evt_data.c, p);
+        STREAM_TO_ARRAY16(evt_data.r, p);
+    }
+    else
+        evt_data.status = BTM_ERR_PROCESSING;
+
+    if (btm_cb.api.p_sp_callback)
+        (*btm_cb.api.p_sp_callback) (BTM_SP_LOC_OOB_EVT, (tBTM_SP_EVT_DATA *)&evt_data);
+}
+
+/*******************************************************************************
+**
+** Function         btm_sec_auth_collision
+**
+** Description      This function is called when authentication or encryption
+**                  needs to be retried at a later time.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btm_sec_auth_collision (UINT16 handle)
+{
+    tBTM_SEC_DEV_REC *p_dev_rec;
+
+    if (!btm_cb.collision_start_time)
+        btm_cb.collision_start_time = time_get_os_boottime_ms();
+
+    if ((time_get_os_boottime_ms() - btm_cb.collision_start_time) < btm_cb.max_collision_delay)
+    {
+        if (handle == BTM_SEC_INVALID_HANDLE)
+        {
+            if ((p_dev_rec = btm_sec_find_dev_by_sec_state (BTM_SEC_STATE_AUTHENTICATING)) == NULL)
+                p_dev_rec = btm_sec_find_dev_by_sec_state (BTM_SEC_STATE_ENCRYPTING);
+        }
+        else
+            p_dev_rec = btm_find_dev_by_handle (handle);
+
+        if (p_dev_rec != NULL)
+        {
+            BTM_TRACE_DEBUG ("btm_sec_auth_collision: state %d (retrying in a moment...)", p_dev_rec->sec_state);
+            /* We will restart authentication after timeout */
+            if (p_dev_rec->sec_state == BTM_SEC_STATE_AUTHENTICATING || p_dev_rec->sec_state == BTM_SEC_STATE_ENCRYPTING)
+                p_dev_rec->sec_state = 0;
+
+            btm_cb.p_collided_dev_rec = p_dev_rec;
+            alarm_set_on_queue(btm_cb.sec_collision_timer, BT_1SEC_TIMEOUT_MS,
+                               btm_sec_collision_timeout, NULL,
+                               btu_general_alarm_queue);
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btm_sec_auth_complete
+**
+** Description      This function is when authentication of the connection is
+**                  completed by the LM
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_sec_auth_complete (UINT16 handle, UINT8 status)
+{
+    UINT8            old_sm4;
+    tBTM_PAIRING_STATE  old_state   = btm_cb.pairing_state;
+    tBTM_SEC_DEV_REC *p_dev_rec = btm_find_dev_by_handle (handle);
+    BOOLEAN             are_bonding = FALSE;
+
+    /* Commenting out trace due to obf/compilation problems.
+    */
+#if (BT_USE_TRACES == TRUE)
+    if (p_dev_rec)
+    {
+        BTM_TRACE_EVENT ("Security Manager: auth_complete PairState: %s  handle:%u  status:%d  dev->sec_state: %u  Bda:%08x, RName:%s",
+                          btm_pair_state_descr (btm_cb.pairing_state),
+                          handle, status,
+                          p_dev_rec->sec_state,
+                          (p_dev_rec->bd_addr[2]<<24)+(p_dev_rec->bd_addr[3]<<16)+(p_dev_rec->bd_addr[4]<<8)+p_dev_rec->bd_addr[5],
+                          p_dev_rec->sec_bd_name);
+    }
+    else
+    {
+        BTM_TRACE_EVENT ("Security Manager: auth_complete PairState: %s  handle:%u  status:%d",
+                          btm_pair_state_descr (btm_cb.pairing_state),
+                          handle, status);
+    }
+#endif
+
+    /* For transaction collision we need to wait and repeat.  There is no need */
+    /* for random timeout because only slave should receive the result */
+    if ((status == HCI_ERR_LMP_ERR_TRANS_COLLISION) || (status == HCI_ERR_DIFF_TRANSACTION_COLLISION))
+    {
+        btm_sec_auth_collision(handle);
+        return;
+    }
+    btm_cb.collision_start_time = 0;
+
+    btm_restore_mode();
+
+    /* Check if connection was made just to do bonding.  If we authenticate
+       the connection that is up, this is the last event received.
+    */
+    if (p_dev_rec
+        && (btm_cb.pairing_flags & BTM_PAIR_FLAGS_WE_STARTED_DD)
+        && !(btm_cb.pairing_flags & BTM_PAIR_FLAGS_DISC_WHEN_DONE))
+    {
+        p_dev_rec->security_required &= ~BTM_SEC_OUT_AUTHENTICATE;
+
+        l2cu_start_post_bond_timer (p_dev_rec->hci_handle);
+    }
+
+    if (!p_dev_rec)
+        return;
+
+    /* keep the old sm4 flag and clear the retry bit in control block */
+    old_sm4 = p_dev_rec->sm4;
+    p_dev_rec->sm4 &= ~BTM_SM4_RETRY;
+
+    if ( (btm_cb.pairing_state != BTM_PAIR_STATE_IDLE)
+         &&  (btm_cb.pairing_flags & BTM_PAIR_FLAGS_WE_STARTED_DD)
+         &&  (memcmp (p_dev_rec->bd_addr, btm_cb.pairing_bda, BD_ADDR_LEN) == 0) )
+        are_bonding = TRUE;
+
+    if ( (btm_cb.pairing_state != BTM_PAIR_STATE_IDLE)
+          &&  (memcmp (p_dev_rec->bd_addr, btm_cb.pairing_bda, BD_ADDR_LEN) == 0) )
+        btm_sec_change_pairing_state (BTM_PAIR_STATE_IDLE);
+
+    if (p_dev_rec->sec_state != BTM_SEC_STATE_AUTHENTICATING)
+    {
+        if ( (btm_cb.api.p_auth_complete_callback && status != HCI_SUCCESS)
+             &&  (old_state != BTM_PAIR_STATE_IDLE) )
+        {
+            (*btm_cb.api.p_auth_complete_callback) (p_dev_rec->bd_addr,
+                                                    p_dev_rec->dev_class,
+                                                    p_dev_rec->sec_bd_name, status);
+        }
+        return;
+    }
+
+    /* There can be a race condition, when we are starting authentication and
+    ** the peer device is doing encryption.
+    ** If first we receive encryption change up, then initiated authentication
+    ** can not be performed.  According to the spec we can not do authentication
+    ** on the encrypted link, so device is correct.
+    */
+    if ((status == HCI_ERR_COMMAND_DISALLOWED)
+        && ((p_dev_rec->sec_flags & (BTM_SEC_AUTHENTICATED | BTM_SEC_ENCRYPTED)) ==
+            (BTM_SEC_AUTHENTICATED | BTM_SEC_ENCRYPTED)))
+    {
+        status = HCI_SUCCESS;
+    }
+    /* Currently we do not notify user if it is a keyboard which connects */
+    /* User probably Disabled the keyboard while it was asleap.  Let her try */
+    if (btm_cb.api.p_auth_complete_callback)
+    {
+        /* report the suthentication status */
+        if (old_state != BTM_PAIR_STATE_IDLE)
+            (*btm_cb.api.p_auth_complete_callback) (p_dev_rec->bd_addr,
+                                                    p_dev_rec->dev_class,
+                                                    p_dev_rec->sec_bd_name, status);
+    }
+
+    p_dev_rec->sec_state = BTM_SEC_STATE_IDLE;
+
+    /* If this is a bonding procedure can disconnect the link now */
+    if (are_bonding)
+    {
+        p_dev_rec->security_required &= ~BTM_SEC_OUT_AUTHENTICATE;
+
+        if (status != HCI_SUCCESS)
+        {
+            if(((status != HCI_ERR_PEER_USER) && (status != HCI_ERR_CONN_CAUSE_LOCAL_HOST)))
+                btm_sec_send_hci_disconnect (p_dev_rec, HCI_ERR_PEER_USER, p_dev_rec->hci_handle);
+        }
+        else
+        {
+            BTM_TRACE_DEBUG ("TRYING TO DECIDE IF CAN USE SMP_BR_CHNL");
+            if (p_dev_rec->new_encryption_key_is_p256 && (btm_sec_use_smp_br_chnl(p_dev_rec))
+                /* no LE keys are available, do deriving */
+                 && (!(p_dev_rec->sec_flags &BTM_SEC_LE_LINK_KEY_KNOWN) ||
+                /* or BR key is higher security than existing LE keys */
+                 (!(p_dev_rec->sec_flags & BTM_SEC_LE_LINK_KEY_AUTHED) &&
+                 (p_dev_rec->sec_flags & BTM_SEC_LINK_KEY_AUTHED))))
+            {
+                BTM_TRACE_DEBUG ("link encrypted afer dedic bonding can use SMP_BR_CHNL");
+
+                if (btm_sec_is_master(p_dev_rec))
+                {
+                    // Encryption is required to start SM over BR/EDR
+                    // indicate that this is encryption after authentication
+                    BTM_SetEncryption(p_dev_rec->bd_addr, BT_TRANSPORT_BR_EDR, NULL, NULL, 0);
+                }
+            }
+            l2cu_start_post_bond_timer (p_dev_rec->hci_handle);
+        }
+
+        return;
+    }
+
+    /* If authentication failed, notify the waiting layer */
+    if (status != HCI_SUCCESS)
+    {
+        if ((old_sm4 & BTM_SM4_RETRY) == 0)
+        {
+            /* allow retry only once */
+            if (status == HCI_ERR_LMP_ERR_TRANS_COLLISION)
+            {
+                /* not retried yet. set the retry bit */
+                p_dev_rec->sm4 |= BTM_SM4_RETRY;
+                BTM_TRACE_DEBUG ("Collision retry sm4:x%x sec_flags:0x%x", p_dev_rec->sm4, p_dev_rec->sec_flags);
+            }
+            /* this retry for missing key is for Lisbon or later only.
+             * Legacy device do not need this. the controller will drive the retry automatically */
+            else if (HCI_ERR_KEY_MISSING == status && BTM_SEC_IS_SM4(p_dev_rec->sm4))
+            {
+                /* not retried yet. set the retry bit */
+                p_dev_rec->sm4 |= BTM_SM4_RETRY;
+                p_dev_rec->sec_flags &= ~BTM_SEC_LINK_KEY_KNOWN;
+                BTM_TRACE_DEBUG ("Retry for missing key sm4:x%x sec_flags:0x%x", p_dev_rec->sm4, p_dev_rec->sec_flags);
+
+                /* With BRCM controller, we do not need to delete the stored link key in controller.
+                If the stack may sit on top of other controller, we may need this
+                BTM_DeleteStoredLinkKey (bd_addr, NULL); */
+            }
+
+            if (p_dev_rec->sm4 & BTM_SM4_RETRY)
+            {
+                btm_sec_execute_procedure (p_dev_rec);
+                return;
+            }
+        }
+
+        btm_sec_dev_rec_cback_event (p_dev_rec, BTM_ERR_PROCESSING, FALSE);
+
+        if (btm_cb.pairing_flags & BTM_PAIR_FLAGS_DISC_WHEN_DONE)
+        {
+            btm_sec_send_hci_disconnect (p_dev_rec, HCI_ERR_AUTH_FAILURE, p_dev_rec->hci_handle);
+        }
+        return;
+    }
+
+    p_dev_rec->sec_flags |= BTM_SEC_AUTHENTICATED;
+
+    if (p_dev_rec->pin_code_length >= 16 ||
+        p_dev_rec->link_key_type == BTM_LKEY_TYPE_AUTH_COMB ||
+        p_dev_rec->link_key_type == BTM_LKEY_TYPE_AUTH_COMB_P_256) {
+        // If we have MITM protection we have a higher level of security than
+        // provided by 16 digits PIN
+        p_dev_rec->sec_flags |= BTM_SEC_16_DIGIT_PIN_AUTHED;
+    }
+
+    /* Authentication succeeded, execute the next security procedure, if any */
+    status = btm_sec_execute_procedure (p_dev_rec);
+
+    /* If there is no next procedure, or procedure failed to start, notify the caller */
+    if (status != BTM_CMD_STARTED)
+        btm_sec_dev_rec_cback_event (p_dev_rec, status, FALSE);
+}
+
+/*******************************************************************************
+**
+** Function         btm_sec_encrypt_change
+**
+** Description      This function is when encryption of the connection is
+**                  completed by the LM
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_sec_encrypt_change (UINT16 handle, UINT8 status, UINT8 encr_enable)
+{
+    tBTM_SEC_DEV_REC  *p_dev_rec = btm_find_dev_by_handle (handle);
+#if BLE_INCLUDED == TRUE && SMP_INCLUDED == TRUE
+    tACL_CONN       *p_acl = NULL;
+    UINT8           acl_idx = btm_handle_to_acl_index(handle);
+#endif
+    BTM_TRACE_EVENT ("Security Manager: encrypt_change status:%d State:%d, encr_enable = %d",
+                      status, (p_dev_rec) ? p_dev_rec->sec_state : 0, encr_enable);
+    BTM_TRACE_DEBUG ("before update p_dev_rec->sec_flags=0x%x", (p_dev_rec) ? p_dev_rec->sec_flags : 0 );
+
+    /* For transaction collision we need to wait and repeat.  There is no need */
+    /* for random timeout because only slave should receive the result */
+    if ((status == HCI_ERR_LMP_ERR_TRANS_COLLISION) ||
+        (status == HCI_ERR_DIFF_TRANSACTION_COLLISION))
+    {
+        btm_sec_auth_collision(handle);
+        return;
+    }
+    btm_cb.collision_start_time = 0;
+
+    if (!p_dev_rec)
+        return;
+
+    if ((status == HCI_SUCCESS) && encr_enable)
+    {
+        if (p_dev_rec->hci_handle == handle) {
+            p_dev_rec->sec_flags |= (BTM_SEC_AUTHENTICATED | BTM_SEC_ENCRYPTED);
+            if (p_dev_rec->pin_code_length >= 16 ||
+                p_dev_rec->link_key_type == BTM_LKEY_TYPE_AUTH_COMB ||
+                p_dev_rec->link_key_type == BTM_LKEY_TYPE_AUTH_COMB_P_256) {
+                p_dev_rec->sec_flags |= BTM_SEC_16_DIGIT_PIN_AUTHED;
+            }
+        }
+        else
+        {
+            p_dev_rec->sec_flags |= (BTM_SEC_LE_AUTHENTICATED | BTM_SEC_LE_ENCRYPTED);
+        }
+    }
+
+    /* It is possible that we decrypted the link to perform role switch */
+    /* mark link not to be encrypted, so that when we execute security next time it will kick in again */
+    if ((status == HCI_SUCCESS) && !encr_enable)
+    {
+        if (p_dev_rec->hci_handle == handle)
+            p_dev_rec->sec_flags &= ~BTM_SEC_ENCRYPTED;
+        else
+            p_dev_rec->sec_flags &= ~BTM_SEC_LE_ENCRYPTED;
+    }
+
+    BTM_TRACE_DEBUG ("after update p_dev_rec->sec_flags=0x%x", p_dev_rec->sec_flags );
+
+#if BLE_INCLUDED == TRUE && SMP_INCLUDED == TRUE
+    if (acl_idx != MAX_L2CAP_LINKS)
+        p_acl = &btm_cb.acl_db[acl_idx];
+
+    if (p_acl != NULL)
+        btm_sec_check_pending_enc_req(p_dev_rec, p_acl->transport, encr_enable);
+
+    if (p_acl && p_acl->transport == BT_TRANSPORT_LE)
+    {
+        if (status == HCI_ERR_KEY_MISSING || status == HCI_ERR_AUTH_FAILURE ||
+            status == HCI_ERR_ENCRY_MODE_NOT_ACCEPTABLE)
+        {
+            p_dev_rec->sec_flags &= ~ (BTM_SEC_LE_LINK_KEY_KNOWN);
+            p_dev_rec->ble.key_type = BTM_LE_KEY_NONE;
+        }
+        btm_ble_link_encrypted(p_dev_rec->ble.pseudo_addr, encr_enable);
+        return;
+    }
+    else
+    {
+        /* BR/EDR connection, update the encryption key size to be 16 as always */
+        p_dev_rec->enc_key_size = 16;
+    }
+
+     BTM_TRACE_DEBUG ("in %s new_encr_key_256 is %d",
+                       __func__, p_dev_rec->new_encryption_key_is_p256);
+
+    if ((status == HCI_SUCCESS) && encr_enable && (p_dev_rec->hci_handle == handle))
+    {
+        if (p_dev_rec->new_encryption_key_is_p256)
+        {
+            if (btm_sec_use_smp_br_chnl(p_dev_rec) &&
+                btm_sec_is_master(p_dev_rec) &&
+                /* if LE key is not known, do deriving */
+                (!(p_dev_rec->sec_flags &BTM_SEC_LE_LINK_KEY_KNOWN) ||
+                /* or BR key is higher security than existing LE keys */
+                 (!(p_dev_rec->sec_flags & BTM_SEC_LE_LINK_KEY_AUTHED)
+                 && (p_dev_rec->sec_flags & BTM_SEC_LINK_KEY_AUTHED))))
+            {
+                /* BR/EDR is encrypted with LK that can be used to derive LE LTK */
+                p_dev_rec->new_encryption_key_is_p256 = FALSE;
+
+                if (p_dev_rec->no_smp_on_br)
+                {
+                    BTM_TRACE_DEBUG ("%s NO SM over BR/EDR", __func__);
+                }
+                else
+                {
+                    BTM_TRACE_DEBUG ("%s start SM over BR/EDR", __func__);
+                    SMP_BR_PairWith(p_dev_rec->bd_addr);
+                }
+            }
+        }
+        else
+        {
+            // BR/EDR is successfully encrypted. Correct LK type if needed
+            // (BR/EDR LK derived from LE LTK was used for encryption)
+            if ((encr_enable == 1)  && /* encryption is ON for SSP */
+                /* LK type is for BR/EDR SC */
+                (p_dev_rec->link_key_type == BTM_LKEY_TYPE_UNAUTH_COMB_P_256 ||
+                 p_dev_rec->link_key_type == BTM_LKEY_TYPE_AUTH_COMB_P_256))
+            {
+                if (p_dev_rec->link_key_type == BTM_LKEY_TYPE_UNAUTH_COMB_P_256)
+                    p_dev_rec->link_key_type = BTM_LKEY_TYPE_UNAUTH_COMB;
+                else /* BTM_LKEY_TYPE_AUTH_COMB_P_256 */
+                    p_dev_rec->link_key_type = BTM_LKEY_TYPE_AUTH_COMB;
+
+                BTM_TRACE_DEBUG("updated link key type to %d", p_dev_rec->link_key_type);
+                btm_send_link_key_notif(p_dev_rec);
+            }
+        }
+    }
+#else
+    btm_sec_check_pending_enc_req (p_dev_rec, BT_TRANSPORT_BR_EDR, encr_enable);
+#endif /* BLE_INCLUDED == TRUE && SMP_INCLUDED == TRUE */
+
+    /* If this encryption was started by peer do not need to do anything */
+    if (p_dev_rec->sec_state != BTM_SEC_STATE_ENCRYPTING)
+    {
+        if (BTM_SEC_STATE_DELAY_FOR_ENC == p_dev_rec->sec_state)
+        {
+            p_dev_rec->sec_state = BTM_SEC_STATE_IDLE;
+            p_dev_rec->p_callback = NULL;
+            l2cu_resubmit_pending_sec_req (p_dev_rec->bd_addr);
+        }
+        return;
+    }
+
+    p_dev_rec->sec_state = BTM_SEC_STATE_IDLE;
+    /* If encryption setup failed, notify the waiting layer */
+    if (status != HCI_SUCCESS)
+    {
+        btm_sec_dev_rec_cback_event (p_dev_rec, BTM_ERR_PROCESSING, FALSE);
+        return;
+    }
+
+    /* Encryption setup succeeded, execute the next security procedure, if any */
+    status = (UINT8)btm_sec_execute_procedure (p_dev_rec);
+    /* If there is no next procedure, or procedure failed to start, notify the caller */
+    if (status != BTM_CMD_STARTED)
+        btm_sec_dev_rec_cback_event (p_dev_rec, status, FALSE);
+}
+
+/*******************************************************************************
+**
+** Function         btm_sec_connect_after_reject_timeout
+**
+** Description      Connection for bonding could not start because of the collision
+**                  Initiate outgoing connection
+**
+** Returns          Pointer to the TLE struct
+**
+*******************************************************************************/
+static void btm_sec_connect_after_reject_timeout(UNUSED_ATTR void *data)
+{
+    tBTM_SEC_DEV_REC *p_dev_rec = btm_cb.p_collided_dev_rec;
+
+    BTM_TRACE_EVENT("%s", __func__);
+    btm_cb.p_collided_dev_rec = 0;
+
+    if (btm_sec_dd_create_conn(p_dev_rec) != BTM_CMD_STARTED)
+    {
+        BTM_TRACE_WARNING("Security Manager: %s: failed to start connection",
+                          __func__);
+
+        btm_sec_change_pairing_state (BTM_PAIR_STATE_IDLE);
+
+        if (btm_cb.api.p_auth_complete_callback)
+        (*btm_cb.api.p_auth_complete_callback) (p_dev_rec->bd_addr,  p_dev_rec->dev_class,
+                                                p_dev_rec->sec_bd_name, HCI_ERR_MEMORY_FULL);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btm_sec_connected
+**
+** Description      This function is when a connection to the peer device is
+**                  establsihed
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_sec_connected (UINT8 *bda, UINT16 handle, UINT8 status, UINT8 enc_mode)
+{
+    tBTM_SEC_DEV_REC *p_dev_rec = btm_find_dev (bda);
+    UINT8            res;
+    BOOLEAN          is_pairing_device = FALSE;
+    tACL_CONN        *p_acl_cb;
+    UINT8            bit_shift = 0;
+
+    btm_acl_resubmit_page();
+
+    /* Commenting out trace due to obf/compilation problems.
+    */
+#if (BT_USE_TRACES == TRUE)
+    if (p_dev_rec)
+    {
+        BTM_TRACE_EVENT ("Security Manager: btm_sec_connected in state: %s  handle:%d status:%d enc_mode:%d  bda:%x RName:%s",
+                          btm_pair_state_descr(btm_cb.pairing_state), handle, status, enc_mode,
+                          (bda[2]<<24)+(bda[3]<<16)+(bda[4]<<8)+bda[5],
+                          p_dev_rec->sec_bd_name);
+    }
+    else
+    {
+        BTM_TRACE_EVENT ("Security Manager: btm_sec_connected in state: %s  handle:%d status:%d enc_mode:%d  bda:%x ",
+                          btm_pair_state_descr(btm_cb.pairing_state), handle, status, enc_mode,
+                          (bda[2]<<24)+(bda[3]<<16)+(bda[4]<<8)+bda[5]);
+    }
+#endif
+
+    if (!p_dev_rec)
+    {
+        /* There is no device record for new connection.  Allocate one */
+        if (status == HCI_SUCCESS)
+        {
+            p_dev_rec = btm_sec_alloc_dev (bda);
+        }
+        else
+        {
+            /* If the device matches with stored paring address
+             * reset the paring state to idle */
+            if ((btm_cb.pairing_state != BTM_PAIR_STATE_IDLE) &&
+                (memcmp (btm_cb.pairing_bda, bda, BD_ADDR_LEN) == 0))
+            {
+                btm_sec_change_pairing_state(BTM_PAIR_STATE_IDLE);
+            }
+
+            /* can not find the device record and the status is error,
+             * just ignore it */
+            return;
+        }
+    }
+    else    /* Update the timestamp for this device */
+    {
+
+#if BLE_INCLUDED == TRUE
+        bit_shift = (handle == p_dev_rec->ble_hci_handle) ? 8 :0;
+#endif
+        p_dev_rec->timestamp = btm_cb.dev_rec_count++;
+        if (p_dev_rec->sm4 & BTM_SM4_CONN_PEND)
+        {
+            /* tell L2CAP it's a bonding connection. */
+            if ( (btm_cb.pairing_state != BTM_PAIR_STATE_IDLE)
+                 &&  (memcmp (btm_cb.pairing_bda, p_dev_rec->bd_addr, BD_ADDR_LEN) == 0)
+                 &&  (btm_cb.pairing_flags & BTM_PAIR_FLAGS_WE_STARTED_DD) )
+            {
+                /* if incoming connection failed while pairing, then try to connect and continue */
+                /* Motorola S9 disconnects without asking pin code */
+                if ((status != HCI_SUCCESS)&&(btm_cb.pairing_state == BTM_PAIR_STATE_WAIT_PIN_REQ))
+                {
+                    BTM_TRACE_WARNING ("Security Manager: btm_sec_connected: incoming connection failed without asking PIN");
+
+                    p_dev_rec->sm4 &= ~BTM_SM4_CONN_PEND;
+                    if (p_dev_rec->sec_flags & BTM_SEC_NAME_KNOWN)
+                    {
+                        /* Start timer with 0 to initiate connection with new LCB */
+                        /* because L2CAP will delete current LCB with this event  */
+                        btm_cb.p_collided_dev_rec = p_dev_rec;
+                        alarm_set_on_queue(btm_cb.sec_collision_timer, 0,
+                                           btm_sec_connect_after_reject_timeout,
+                                           NULL, btu_general_alarm_queue);
+                    }
+                    else
+                    {
+                        btm_sec_change_pairing_state (BTM_PAIR_STATE_GET_REM_NAME);
+                        BTM_ReadRemoteDeviceName(p_dev_rec->bd_addr, NULL, BT_TRANSPORT_BR_EDR);
+                    }
+#if BTM_DISC_DURING_RS == TRUE
+                    p_dev_rec->rs_disc_pending   = BTM_SEC_RS_NOT_PENDING;     /* reset flag */
+#endif
+                    return;
+                }
+                else
+                {
+                    l2cu_update_lcb_4_bonding(p_dev_rec->bd_addr, TRUE);
+                }
+            }
+            /* always clear the pending flag */
+            p_dev_rec->sm4 &= ~BTM_SM4_CONN_PEND;
+        }
+    }
+
+#if BLE_INCLUDED == TRUE
+    p_dev_rec->device_type |= BT_DEVICE_TYPE_BREDR;
+#endif
+
+#if BTM_DISC_DURING_RS == TRUE
+    p_dev_rec->rs_disc_pending   = BTM_SEC_RS_NOT_PENDING;     /* reset flag */
+#endif
+
+    p_dev_rec->rs_disc_pending   = BTM_SEC_RS_NOT_PENDING;     /* reset flag */
+
+    if ( (btm_cb.pairing_state != BTM_PAIR_STATE_IDLE)
+         && (memcmp (btm_cb.pairing_bda, bda, BD_ADDR_LEN) == 0) )
+    {
+        /* if we rejected incoming connection from bonding device */
+        if ((status == HCI_ERR_HOST_REJECT_DEVICE)
+            &&(btm_cb.pairing_flags & BTM_PAIR_FLAGS_REJECTED_CONNECT))
+        {
+            BTM_TRACE_WARNING ("Security Manager: btm_sec_connected: HCI_Conn_Comp Flags:0x%04x, sm4: 0x%x",
+                btm_cb.pairing_flags, p_dev_rec->sm4);
+
+            btm_cb.pairing_flags &= ~BTM_PAIR_FLAGS_REJECTED_CONNECT;
+            if (BTM_SEC_IS_SM4_UNKNOWN(p_dev_rec->sm4))
+            {
+                /* Try again: RNR when no ACL causes HCI_RMT_HOST_SUP_FEAT_NOTIFY_EVT */
+                btm_sec_change_pairing_state (BTM_PAIR_STATE_GET_REM_NAME);
+                BTM_ReadRemoteDeviceName(bda, NULL, BT_TRANSPORT_BR_EDR);
+                return;
+            }
+
+            /* if we already have pin code */
+            if (btm_cb.pairing_state != BTM_PAIR_STATE_WAIT_LOCAL_PIN)
+            {
+                /* Start timer with 0 to initiate connection with new LCB */
+                /* because L2CAP will delete current LCB with this event  */
+                btm_cb.p_collided_dev_rec = p_dev_rec;
+                alarm_set_on_queue(btm_cb.sec_collision_timer, 0,
+                                   btm_sec_connect_after_reject_timeout,
+                                   NULL, btu_general_alarm_queue);
+            }
+
+            return;
+        }
+        /* wait for incoming connection without resetting pairing state */
+        else if (status == HCI_ERR_CONNECTION_EXISTS)
+        {
+            BTM_TRACE_WARNING ("Security Manager: btm_sec_connected: Wait for incoming connection");
+            return;
+        }
+
+        is_pairing_device = TRUE;
+    }
+
+    /* If connection was made to do bonding restore link security if changed */
+    btm_restore_mode();
+
+    /* if connection fails during pin request, notify application */
+    if (status != HCI_SUCCESS)
+    {
+        /* If connection failed because of during pairing, need to tell user */
+        if (is_pairing_device)
+        {
+            p_dev_rec->security_required &= ~BTM_SEC_OUT_AUTHENTICATE;
+            p_dev_rec->sec_flags &= ~((BTM_SEC_LINK_KEY_KNOWN | BTM_SEC_LINK_KEY_AUTHED) << bit_shift);
+            BTM_TRACE_DEBUG ("security_required:%x ", p_dev_rec->security_required );
+
+            btm_sec_change_pairing_state (BTM_PAIR_STATE_IDLE);
+
+            /* We need to notify host that the key is not known any more */
+            if (btm_cb.api.p_auth_complete_callback)
+            {
+                (*btm_cb.api.p_auth_complete_callback) (p_dev_rec->bd_addr,
+                                                        p_dev_rec->dev_class,
+                                                        p_dev_rec->sec_bd_name, status);
+            }
+        }
+ /*
+     Do not send authentication failure, if following conditions hold good
+      1.  BTM Sec Pairing state is idle
+      2.  Link key for the remote device is present.
+      3.  Remote is SSP capable.
+  */
+        else if  ((p_dev_rec->link_key_type  <= BTM_LKEY_TYPE_REMOTE_UNIT) &&
+                 (((status == HCI_ERR_AUTH_FAILURE)                      ||
+                 (status == HCI_ERR_KEY_MISSING)                         ||
+                 (status == HCI_ERR_HOST_REJECT_SECURITY)                ||
+                 (status == HCI_ERR_PAIRING_NOT_ALLOWED)                 ||
+                 (status == HCI_ERR_UNIT_KEY_USED)                       ||
+                 (status == HCI_ERR_PAIRING_WITH_UNIT_KEY_NOT_SUPPORTED) ||
+                 (status == HCI_ERR_ENCRY_MODE_NOT_ACCEPTABLE)           ||
+                 (status == HCI_ERR_REPEATED_ATTEMPTS))))
+        {
+            p_dev_rec->security_required &= ~BTM_SEC_OUT_AUTHENTICATE;
+            p_dev_rec->sec_flags &= ~ (BTM_SEC_LE_LINK_KEY_KNOWN << bit_shift);
+
+#ifdef BRCM_NOT_4_BTE
+            /* If we rejected pairing, pass this special result code */
+            if (btm_cb.acl_disc_reason == HCI_ERR_HOST_REJECT_SECURITY)
+            {
+                status = HCI_ERR_HOST_REJECT_SECURITY;
+            }
+#endif
+
+            /* We need to notify host that the key is not known any more */
+            if (btm_cb.api.p_auth_complete_callback)
+            {
+                (*btm_cb.api.p_auth_complete_callback) (p_dev_rec->bd_addr,
+                                                        p_dev_rec->dev_class,
+                                                        p_dev_rec->sec_bd_name, status);
+            }
+        }
+
+        if (status == HCI_ERR_CONNECTION_TOUT || status == HCI_ERR_LMP_RESPONSE_TIMEOUT  ||
+            status == HCI_ERR_UNSPECIFIED     || status == HCI_ERR_PAGE_TIMEOUT)
+            btm_sec_dev_rec_cback_event (p_dev_rec, BTM_DEVICE_TIMEOUT, FALSE);
+        else
+            btm_sec_dev_rec_cback_event (p_dev_rec, BTM_ERR_PROCESSING, FALSE);
+
+        return;
+    }
+
+    /* If initiated dedicated bonding, return the link key now, and initiate disconnect */
+    /* If dedicated bonding, and we now have a link key, we are all done */
+    if ( is_pairing_device
+         && (p_dev_rec->sec_flags & BTM_SEC_LINK_KEY_KNOWN) )
+    {
+        if (p_dev_rec->link_key_not_sent)
+        {
+            p_dev_rec->link_key_not_sent = FALSE;
+            btm_send_link_key_notif(p_dev_rec);
+        }
+
+        p_dev_rec->security_required &= ~BTM_SEC_OUT_AUTHENTICATE;
+
+        /* remember flag before it is initialized */
+        if (btm_cb.pairing_flags & BTM_PAIR_FLAGS_WE_STARTED_DD)
+            res = TRUE;
+        else
+            res = FALSE;
+
+        if (btm_cb.api.p_auth_complete_callback)
+            (*btm_cb.api.p_auth_complete_callback) (p_dev_rec->bd_addr,
+                                                    p_dev_rec->dev_class,
+                                                    p_dev_rec->sec_bd_name, HCI_SUCCESS);
+
+        btm_sec_change_pairing_state (BTM_PAIR_STATE_IDLE);
+
+        if ( res )
+        {
+            /* Let l2cap start bond timer */
+            l2cu_update_lcb_4_bonding (p_dev_rec->bd_addr, TRUE);
+        }
+
+        return;
+    }
+
+    p_dev_rec->hci_handle = handle;
+
+    /* role may not be correct here, it will be updated by l2cap, but we need to */
+    /* notify btm_acl that link is up, so starting of rmt name request will not */
+    /* set paging flag up */
+    p_acl_cb = btm_bda_to_acl(bda, BT_TRANSPORT_BR_EDR);
+    if (p_acl_cb)
+    {
+        /* whatever is in btm_establish_continue() without reporting the BTM_BL_CONN_EVT event */
+#if (!defined(BTM_BYPASS_EXTRA_ACL_SETUP) || BTM_BYPASS_EXTRA_ACL_SETUP == FALSE)
+        /* For now there are a some devices that do not like sending */
+        /* commands events and data at the same time. */
+        /* Set the packet types to the default allowed by the device */
+        btm_set_packet_types (p_acl_cb, btm_cb.btm_acl_pkt_types_supported);
+
+        if (btm_cb.btm_def_link_policy)
+            BTM_SetLinkPolicy (p_acl_cb->remote_addr, &btm_cb.btm_def_link_policy);
+#endif
+    }
+    btm_acl_created (bda, p_dev_rec->dev_class, p_dev_rec->sec_bd_name, handle, HCI_ROLE_SLAVE, BT_TRANSPORT_BR_EDR);
+
+    /* Initialize security flags.  We need to do that because some            */
+    /* authorization complete could have come after the connection is dropped */
+    /* and that would set wrong flag that link has been authorized already    */
+    p_dev_rec->sec_flags &= ~((BTM_SEC_AUTHORIZED | BTM_SEC_AUTHENTICATED |
+                              BTM_SEC_ENCRYPTED | BTM_SEC_ROLE_SWITCHED) << bit_shift);
+
+    if (enc_mode != HCI_ENCRYPT_MODE_DISABLED)
+        p_dev_rec->sec_flags |= ((BTM_SEC_AUTHENTICATED | BTM_SEC_ENCRYPTED) << bit_shift);
+
+    if (btm_cb.security_mode == BTM_SEC_MODE_LINK)
+        p_dev_rec->sec_flags |= (BTM_SEC_AUTHENTICATED << bit_shift);
+
+    if (p_dev_rec->pin_code_length >= 16 ||
+        p_dev_rec->link_key_type == BTM_LKEY_TYPE_AUTH_COMB ||
+        p_dev_rec->link_key_type == BTM_LKEY_TYPE_AUTH_COMB_P_256) {
+        p_dev_rec->sec_flags |= (BTM_SEC_16_DIGIT_PIN_AUTHED << bit_shift);
+    }
+
+    p_dev_rec->link_key_changed = FALSE;
+
+    /* After connection is established we perform security if we do not know */
+    /* the name, or if we are originator because some procedure can have */
+    /* been scheduled while connection was down */
+    BTM_TRACE_DEBUG ("is_originator:%d ", p_dev_rec->is_originator);
+    if (!(p_dev_rec->sec_flags & BTM_SEC_NAME_KNOWN) || p_dev_rec->is_originator)
+    {
+        if ((res = btm_sec_execute_procedure (p_dev_rec)) != BTM_CMD_STARTED)
+            btm_sec_dev_rec_cback_event (p_dev_rec, res, FALSE);
+    }
+    return;
+}
+
+/*******************************************************************************
+**
+** Function         btm_sec_disconnect
+**
+** Description      This function is called to disconnect HCI link
+**
+** Returns          btm status
+**
+*******************************************************************************/
+tBTM_STATUS btm_sec_disconnect (UINT16 handle, UINT8 reason)
+{
+    tBTM_SEC_DEV_REC  *p_dev_rec = btm_find_dev_by_handle (handle);
+
+    /* In some weird race condition we may not have a record */
+    if (!p_dev_rec)
+    {
+        btsnd_hcic_disconnect (handle, reason);
+        return(BTM_SUCCESS);
+    }
+
+    /* If we are in the process of bonding we need to tell client that auth failed */
+    if ( (btm_cb.pairing_state != BTM_PAIR_STATE_IDLE)
+         &&  (memcmp (btm_cb.pairing_bda, p_dev_rec->bd_addr, BD_ADDR_LEN) == 0)
+         &&  (btm_cb.pairing_flags & BTM_PAIR_FLAGS_WE_STARTED_DD) )
+    {
+        /* we are currently doing bonding.  Link will be disconnected when done */
+        btm_cb.pairing_flags |= BTM_PAIR_FLAGS_DISC_WHEN_DONE;
+        return(BTM_BUSY);
+    }
+
+    return(btm_sec_send_hci_disconnect(p_dev_rec, reason, handle));
+}
+
+/*******************************************************************************
+**
+** Function         btm_sec_disconnected
+**
+** Description      This function is when a connection to the peer device is
+**                  dropped
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_sec_disconnected (UINT16 handle, UINT8 reason)
+{
+    tBTM_SEC_DEV_REC  *p_dev_rec = btm_find_dev_by_handle (handle);
+    UINT8             old_pairing_flags = btm_cb.pairing_flags;
+    int               result = HCI_ERR_AUTH_FAILURE;
+    tBTM_SEC_CALLBACK   *p_callback = NULL;
+    tBT_TRANSPORT      transport = BT_TRANSPORT_BR_EDR;
+
+    /* If page was delayed for disc complete, can do it now */
+    btm_cb.discing = FALSE;
+
+    btm_acl_resubmit_page();
+
+    if (!p_dev_rec)
+        return;
+
+#ifdef BLUETOOTH_RTK_COEX
+    if ((p_dev_rec->device_type &= BT_DEVICE_TYPE_BLE) == 0x02) {
+        rtk_parse_manager_get_interface()->rtk_delete_le_profile(p_dev_rec->bd_addr, p_dev_rec->hci_handle, p_dev_rec->profile_map);
+    }
+#endif
+    transport  = (handle == p_dev_rec->hci_handle) ? BT_TRANSPORT_BR_EDR: BT_TRANSPORT_LE;
+
+    p_dev_rec->rs_disc_pending = BTM_SEC_RS_NOT_PENDING;     /* reset flag */
+
+#if BTM_DISC_DURING_RS == TRUE
+    LOG_INFO(LOG_TAG, "%s clearing pending flag handle:%d reason:%d", __func__, handle, reason);
+    p_dev_rec->rs_disc_pending = BTM_SEC_RS_NOT_PENDING;     /* reset flag */
+#endif
+
+    /* clear unused flags */
+    p_dev_rec->sm4 &= BTM_SM4_TRUE;
+
+    uint8_t *bd_addr = (uint8_t *)p_dev_rec->bd_addr;
+    BTM_TRACE_EVENT("%s sec_req:x%x state:%s reason:%d bd_addr:%02x:%02x:%02x:%02x:%02x:%02x"
+            "  remote_name:%s", __func__, p_dev_rec->security_required, btm_pair_state_descr(btm_cb.pairing_state),
+            reason, bd_addr[0], bd_addr[1], bd_addr[2], bd_addr[3], bd_addr[4], bd_addr[5], p_dev_rec->sec_bd_name);
+
+    BTM_TRACE_EVENT("%s before update sec_flags=0x%x", __func__, p_dev_rec->sec_flags);
+
+    /* If we are in the process of bonding we need to tell client that auth failed */
+    if ( (btm_cb.pairing_state != BTM_PAIR_STATE_IDLE)
+         && (memcmp (btm_cb.pairing_bda, p_dev_rec->bd_addr, BD_ADDR_LEN) == 0))
+    {
+        btm_sec_change_pairing_state (BTM_PAIR_STATE_IDLE);
+        p_dev_rec->sec_flags &= ~BTM_SEC_LINK_KEY_KNOWN;
+        if (btm_cb.api.p_auth_complete_callback)
+        {
+            /* If the disconnection reason is REPEATED_ATTEMPTS,
+               send this error message to complete callback function
+               to display the error message of Repeated attempts.
+               All others, send HCI_ERR_AUTH_FAILURE. */
+            if (reason == HCI_ERR_REPEATED_ATTEMPTS)
+            {
+                result = HCI_ERR_REPEATED_ATTEMPTS;
+            }
+            else if (old_pairing_flags & BTM_PAIR_FLAGS_WE_STARTED_DD)
+            {
+                result = HCI_ERR_HOST_REJECT_SECURITY;
+            }
+            (*btm_cb.api.p_auth_complete_callback) (p_dev_rec->bd_addr,     p_dev_rec->dev_class,
+                                                    p_dev_rec->sec_bd_name, result);
+        }
+    }
+
+#if BLE_INCLUDED == TRUE && SMP_INCLUDED == TRUE
+    btm_ble_update_mode_operation(HCI_ROLE_UNKNOWN, p_dev_rec->bd_addr, HCI_SUCCESS);
+    /* see sec_flags processing in btm_acl_removed */
+
+    if (transport == BT_TRANSPORT_LE)
+    {
+        p_dev_rec->ble_hci_handle = BTM_SEC_INVALID_HANDLE;
+        p_dev_rec->sec_flags &= ~(BTM_SEC_LE_AUTHENTICATED|BTM_SEC_LE_ENCRYPTED);
+        p_dev_rec->enc_key_size = 0;
+    }
+    else
+#endif
+    {
+        p_dev_rec->hci_handle = BTM_SEC_INVALID_HANDLE;
+        p_dev_rec->sec_flags &= ~(BTM_SEC_AUTHORIZED | BTM_SEC_AUTHENTICATED | BTM_SEC_ENCRYPTED
+                | BTM_SEC_ROLE_SWITCHED | BTM_SEC_16_DIGIT_PIN_AUTHED);
+    }
+
+#if BLE_INCLUDED == TRUE && SMP_INCLUDED == TRUE
+    if (p_dev_rec->sec_state == BTM_SEC_STATE_DISCONNECTING_BOTH)
+    {
+        p_dev_rec->sec_state = (transport == BT_TRANSPORT_LE) ?
+                                BTM_SEC_STATE_DISCONNECTING : BTM_SEC_STATE_DISCONNECTING_BLE;
+        return;
+    }
+#endif
+    p_dev_rec->sec_state  = BTM_SEC_STATE_IDLE;
+    p_dev_rec->security_required = BTM_SEC_NONE;
+
+    p_callback = p_dev_rec->p_callback;
+
+    /* if security is pending, send callback to clean up the security state */
+    if(p_callback)
+    {
+        p_dev_rec->p_callback = NULL; /* when the peer device time out the authentication before
+                                         we do, this call back must be reset here */
+        (*p_callback) (p_dev_rec->bd_addr, transport, p_dev_rec->p_ref_data, BTM_ERR_PROCESSING);
+    }
+
+    BTM_TRACE_EVENT("%s after update sec_flags=0x%x", __func__, p_dev_rec->sec_flags);
+}
+
+/*******************************************************************************
+**
+** Function         btm_sec_link_key_notification
+**
+** Description      This function is called when a new connection link key is
+**                  generated
+**
+** Returns          Pointer to the record or NULL
+**
+*******************************************************************************/
+void btm_sec_link_key_notification (UINT8 *p_bda, UINT8 *p_link_key, UINT8 key_type)
+{
+    tBTM_SEC_DEV_REC *p_dev_rec = btm_find_or_alloc_dev (p_bda);
+    BOOLEAN         we_are_bonding = FALSE;
+    BOOLEAN         ltk_derived_lk  = FALSE;
+
+    BTM_TRACE_EVENT ("btm_sec_link_key_notification()  BDA:%04x%08x, TYPE: %d",
+                      (p_bda[0]<<8)+p_bda[1], (p_bda[2]<<24)+(p_bda[3]<<16)+(p_bda[4]<<8)+p_bda[5],
+                      key_type);
+
+    if ((key_type >= BTM_LTK_DERIVED_LKEY_OFFSET + BTM_LKEY_TYPE_COMBINATION) &&
+        (key_type <= BTM_LTK_DERIVED_LKEY_OFFSET + BTM_LKEY_TYPE_AUTH_COMB_P_256))
+    {
+        ltk_derived_lk = TRUE;
+        key_type -= BTM_LTK_DERIVED_LKEY_OFFSET;
+    }
+    /* If connection was made to do bonding restore link security if changed */
+    btm_restore_mode();
+
+    if (key_type != BTM_LKEY_TYPE_CHANGED_COMB)
+        p_dev_rec->link_key_type = key_type;
+
+    p_dev_rec->sec_flags |= BTM_SEC_LINK_KEY_KNOWN;
+
+    /*
+     * Until this point in time, we do not know if MITM was enabled, hence we
+     * add the extended security flag here.
+     */
+    if (p_dev_rec->pin_code_length >= 16 ||
+        p_dev_rec->link_key_type == BTM_LKEY_TYPE_AUTH_COMB ||
+        p_dev_rec->link_key_type == BTM_LKEY_TYPE_AUTH_COMB_P_256) {
+        p_dev_rec->sec_flags |= BTM_SEC_16_DIGIT_PIN_AUTHED;
+    }
+
+#if (BLE_INCLUDED == TRUE)
+    /* BR/EDR connection, update the encryption key size to be 16 as always */
+    p_dev_rec->enc_key_size = 16;
+#endif
+    memcpy (p_dev_rec->link_key, p_link_key, LINK_KEY_LEN);
+
+    if ( (btm_cb.pairing_state != BTM_PAIR_STATE_IDLE)
+         && (memcmp (btm_cb.pairing_bda, p_bda, BD_ADDR_LEN) == 0) )
+    {
+        if (btm_cb.pairing_flags & BTM_PAIR_FLAGS_WE_STARTED_DD)
+            we_are_bonding = TRUE;
+        else
+            btm_sec_change_pairing_state (BTM_PAIR_STATE_IDLE);
+    }
+
+    /* save LTK derived LK no matter what */
+    if (ltk_derived_lk)
+    {
+        if (btm_cb.api.p_link_key_callback)
+        {
+                BTM_TRACE_DEBUG ("%s() Save LTK derived LK (key_type = %d)",
+                                  __FUNCTION__, p_dev_rec->link_key_type);
+                (*btm_cb.api.p_link_key_callback) (p_bda, p_dev_rec->dev_class,
+                                                   p_dev_rec->sec_bd_name,
+                                                   p_link_key, p_dev_rec->link_key_type);
+        }
+    }
+    else
+    {
+        if ((p_dev_rec->link_key_type == BTM_LKEY_TYPE_UNAUTH_COMB_P_256) ||
+            (p_dev_rec->link_key_type == BTM_LKEY_TYPE_AUTH_COMB_P_256))
+        {
+             p_dev_rec->new_encryption_key_is_p256 = TRUE;
+             BTM_TRACE_DEBUG ("%s set new_encr_key_256 to %d",
+                               __func__, p_dev_rec->new_encryption_key_is_p256);
+        }
+    }
+
+    /* If name is not known at this point delay calling callback until the name is   */
+    /* resolved. Unless it is a HID Device and we really need to send all link keys. */
+    if ((!(p_dev_rec->sec_flags & BTM_SEC_NAME_KNOWN)
+        &&  ((p_dev_rec->dev_class[1] & BTM_COD_MAJOR_CLASS_MASK) != BTM_COD_MAJOR_PERIPHERAL))
+        && !ltk_derived_lk)
+    {
+        BTM_TRACE_EVENT ("btm_sec_link_key_notification()  Delayed BDA: %08x%04x Type:%d",
+                          (p_bda[0]<<24) + (p_bda[1]<<16) + (p_bda[2]<<8) + p_bda[3],
+                          (p_bda[4] << 8) + p_bda[5], key_type);
+
+        p_dev_rec->link_key_not_sent = TRUE;
+
+        /* If it is for bonding nothing else will follow, so we need to start name resolution */
+        if (we_are_bonding)
+        {
+            if (!(btsnd_hcic_rmt_name_req (p_bda, HCI_PAGE_SCAN_REP_MODE_R1, HCI_MANDATARY_PAGE_SCAN_MODE, 0)))
+                btm_inq_rmt_name_failed();
+        }
+
+        BTM_TRACE_EVENT ("rmt_io_caps:%d, sec_flags:x%x, dev_class[1]:x%02x", p_dev_rec->rmt_io_caps, p_dev_rec->sec_flags, p_dev_rec->dev_class[1])
+        return;
+    }
+
+    /* If its not us who perform authentication, we should tell stackserver */
+    /* that some authentication has been completed                          */
+    /* This is required when different entities receive link notification and auth complete */
+    if (!(p_dev_rec->security_required & BTM_SEC_OUT_AUTHENTICATE)
+        /* for derived key, always send authentication callback for BR channel */
+         || ltk_derived_lk)
+    {
+        if (btm_cb.api.p_auth_complete_callback)
+            (*btm_cb.api.p_auth_complete_callback) (p_dev_rec->bd_addr, p_dev_rec->dev_class,
+                                                    p_dev_rec->sec_bd_name, HCI_SUCCESS);
+    }
+
+    /* We will save link key only if the user authorized it - BTE report link key in all cases */
+#ifdef BRCM_NONE_BTE
+    if (p_dev_rec->sec_flags & BTM_SEC_LINK_KEY_AUTHED)
+#endif
+    {
+        if (btm_cb.api.p_link_key_callback)
+        {
+            if (ltk_derived_lk)
+            {
+                BTM_TRACE_DEBUG ("btm_sec_link_key_notification()  LTK derived LK is saved already"
+                                    " (key_type = %d)", p_dev_rec->link_key_type);
+            }
+            else
+            {
+                (*btm_cb.api.p_link_key_callback) (p_bda, p_dev_rec->dev_class,
+                                                   p_dev_rec->sec_bd_name,
+                                                   p_link_key, p_dev_rec->link_key_type);
+            }
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btm_sec_link_key_request
+**
+** Description      This function is called when controller requests link key
+**
+** Returns          Pointer to the record or NULL
+**
+*******************************************************************************/
+void btm_sec_link_key_request (UINT8 *p_bda)
+{
+    tBTM_SEC_DEV_REC *p_dev_rec = btm_find_or_alloc_dev (p_bda);
+
+    BTM_TRACE_EVENT ("btm_sec_link_key_request()  BDA: %02x:%02x:%02x:%02x:%02x:%02x",
+                      p_bda[0], p_bda[1], p_bda[2], p_bda[3], p_bda[4], p_bda[5]);
+
+    if( (btm_cb.pairing_state == BTM_PAIR_STATE_WAIT_PIN_REQ) &&
+        (btm_cb.collision_start_time != 0) &&
+        (memcmp (btm_cb.p_collided_dev_rec->bd_addr, p_bda, BD_ADDR_LEN) == 0) )
+    {
+        BTM_TRACE_EVENT ("btm_sec_link_key_request() rejecting link key req "
+            "State: %d START_TIMEOUT : %d",
+             btm_cb.pairing_state, btm_cb.collision_start_time);
+        btsnd_hcic_link_key_neg_reply (p_bda);
+        return;
+    }
+    if (p_dev_rec->sec_flags & BTM_SEC_LINK_KEY_KNOWN)
+    {
+        btsnd_hcic_link_key_req_reply (p_bda, p_dev_rec->link_key);
+        return;
+    }
+
+    /* Notify L2CAP to increase timeout */
+    l2c_pin_code_request (p_bda);
+
+    /* The link key is not in the database and it is not known to the manager */
+    btsnd_hcic_link_key_neg_reply (p_bda);
+}
+
+/*******************************************************************************
+**
+** Function         btm_sec_pairing_timeout
+**
+** Description      This function is called when host does not provide PIN
+**                  within requested time
+**
+** Returns          Pointer to the TLE struct
+**
+*******************************************************************************/
+static void btm_sec_pairing_timeout(UNUSED_ATTR void *data)
+{
+    tBTM_CB *p_cb = &btm_cb;
+    tBTM_SEC_DEV_REC *p_dev_rec;
+#if (BTM_LOCAL_IO_CAPS == BTM_IO_CAP_NONE)
+    tBTM_AUTH_REQ   auth_req = BTM_AUTH_AP_NO;
+#else
+    tBTM_AUTH_REQ   auth_req = BTM_AUTH_AP_YES;
+#endif
+    UINT8   name[2];
+
+/* Coverity: FALSE-POSITIVE error from Coverity tool. Please do NOT remove following comment. */
+/* coverity[UNUSED_VALUE] pointer p_dev_rec is actually used several times... This is a Coverity false-positive, i.e. a fake issue.
+*/
+    p_dev_rec = btm_find_dev (p_cb->pairing_bda);
+
+    BTM_TRACE_EVENT ("%s  State: %s   Flags: %u", __func__,
+                      btm_pair_state_descr(p_cb->pairing_state), p_cb->pairing_flags);
+
+    switch (p_cb->pairing_state)
+    {
+        case BTM_PAIR_STATE_WAIT_PIN_REQ:
+            btm_sec_bond_cancel_complete();
+            break;
+
+        case BTM_PAIR_STATE_WAIT_LOCAL_PIN:
+            if ( (btm_cb.pairing_flags & BTM_PAIR_FLAGS_PRE_FETCH_PIN) == 0)
+                btsnd_hcic_pin_code_neg_reply (p_cb->pairing_bda);
+            btm_sec_change_pairing_state (BTM_PAIR_STATE_IDLE);
+            /* We need to notify the UI that no longer need the PIN */
+            if (btm_cb.api.p_auth_complete_callback)
+            {
+                if (p_dev_rec == NULL)
+                {
+                    name[0] = 0;
+                    (*btm_cb.api.p_auth_complete_callback) (p_cb->pairing_bda,
+                                                            NULL,
+                                                            name, HCI_ERR_CONNECTION_TOUT);
+                }
+                else
+                    (*btm_cb.api.p_auth_complete_callback) (p_dev_rec->bd_addr,
+                                                            p_dev_rec->dev_class,
+                                                            p_dev_rec->sec_bd_name, HCI_ERR_CONNECTION_TOUT);
+            }
+            break;
+
+        case BTM_PAIR_STATE_WAIT_NUMERIC_CONFIRM:
+            btsnd_hcic_user_conf_reply (p_cb->pairing_bda, FALSE);
+            /* btm_sec_change_pairing_state (BTM_PAIR_STATE_IDLE); */
+            break;
+
+#if (BTM_LOCAL_IO_CAPS != BTM_IO_CAP_NONE)
+        case BTM_PAIR_STATE_KEY_ENTRY:
+            btsnd_hcic_user_passkey_neg_reply(p_cb->pairing_bda);
+            /* btm_sec_change_pairing_state (BTM_PAIR_STATE_IDLE); */
+            break;
+#endif /* !BTM_IO_CAP_NONE */
+
+        case BTM_PAIR_STATE_WAIT_LOCAL_IOCAPS:
+            if (btm_cb.pairing_flags & BTM_PAIR_FLAGS_WE_STARTED_DD)
+                auth_req |= BTM_AUTH_DD_BOND;
+
+            btsnd_hcic_io_cap_req_reply (p_cb->pairing_bda, btm_cb.devcb.loc_io_caps,
+                                         BTM_OOB_NONE, auth_req);
+            btm_sec_change_pairing_state (BTM_PAIR_STATE_IDLE);
+            break;
+
+        case BTM_PAIR_STATE_WAIT_LOCAL_OOB_RSP:
+            btsnd_hcic_rem_oob_neg_reply (p_cb->pairing_bda);
+            btm_sec_change_pairing_state (BTM_PAIR_STATE_IDLE);
+            break;
+
+        case BTM_PAIR_STATE_WAIT_DISCONNECT:
+            /* simple pairing failed. Started a 1-sec timer at simple pairing complete.
+             * now it's time to tear down the ACL link*/
+            if (p_dev_rec == NULL)
+            {
+                BTM_TRACE_ERROR("%s BTM_PAIR_STATE_WAIT_DISCONNECT unknown BDA: %08x%04x",
+                                __func__,
+                                (p_cb->pairing_bda[0]<<24) + (p_cb->pairing_bda[1]<<16) + (p_cb->pairing_bda[2]<<8) + p_cb->pairing_bda[3],
+                                (p_cb->pairing_bda[4] << 8) + p_cb->pairing_bda[5]);
+                break;
+            }
+            btm_sec_send_hci_disconnect (p_dev_rec, HCI_ERR_AUTH_FAILURE, p_dev_rec->hci_handle);
+            btm_sec_change_pairing_state (BTM_PAIR_STATE_IDLE);
+            break;
+
+        case BTM_PAIR_STATE_WAIT_AUTH_COMPLETE:
+        case BTM_PAIR_STATE_GET_REM_NAME:
+            /* We need to notify the UI that timeout has happened while waiting for authentication*/
+            btm_sec_change_pairing_state (BTM_PAIR_STATE_IDLE);
+            if (btm_cb.api.p_auth_complete_callback)
+            {
+                if (p_dev_rec == NULL)
+                {
+                    name[0] = 0;
+                    (*btm_cb.api.p_auth_complete_callback) (p_cb->pairing_bda,
+                                                            NULL,
+                                                            name, HCI_ERR_CONNECTION_TOUT);
+                }
+                else
+                    (*btm_cb.api.p_auth_complete_callback) (p_dev_rec->bd_addr,
+                                                            p_dev_rec->dev_class,
+                                                            p_dev_rec->sec_bd_name, HCI_ERR_CONNECTION_TOUT);
+            }
+            break;
+
+        default:
+            BTM_TRACE_WARNING("%s not processed state: %s", __func__,
+                              btm_pair_state_descr(btm_cb.pairing_state));
+            btm_sec_change_pairing_state (BTM_PAIR_STATE_IDLE);
+            break;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btm_sec_pin_code_request
+**
+** Description      This function is called when controller requests PIN code
+**
+** Returns          Pointer to the record or NULL
+**
+*******************************************************************************/
+void btm_sec_pin_code_request (UINT8 *p_bda)
+{
+    tBTM_SEC_DEV_REC *p_dev_rec;
+    tBTM_CB          *p_cb = &btm_cb;
+
+    BTM_TRACE_EVENT ("btm_sec_pin_code_request()  State: %s, BDA:%04x%08x",
+                      btm_pair_state_descr(btm_cb.pairing_state),
+                      (p_bda[0]<<8)+p_bda[1], (p_bda[2]<<24)+(p_bda[3]<<16)+(p_bda[4]<<8)+p_bda[5] );
+
+    if (btm_cb.pairing_state != BTM_PAIR_STATE_IDLE)
+    {
+        if ( (memcmp (p_bda, btm_cb.pairing_bda, BD_ADDR_LEN) == 0)  &&
+             (btm_cb.pairing_state == BTM_PAIR_STATE_WAIT_AUTH_COMPLETE) )
+        {
+             btsnd_hcic_pin_code_neg_reply (p_bda);
+             return;
+        }
+        else if ((btm_cb.pairing_state != BTM_PAIR_STATE_WAIT_PIN_REQ)
+                 || memcmp (p_bda, btm_cb.pairing_bda, BD_ADDR_LEN) != 0)
+        {
+            BTM_TRACE_WARNING ("btm_sec_pin_code_request() rejected - state: %s",
+                                btm_pair_state_descr(btm_cb.pairing_state));
+            btsnd_hcic_pin_code_neg_reply (p_bda);
+            return;
+        }
+    }
+
+    p_dev_rec = btm_find_or_alloc_dev (p_bda);
+    /* received PIN code request. must be non-sm4 */
+    p_dev_rec->sm4 = BTM_SM4_KNOWN;
+
+    if (btm_cb.pairing_state == BTM_PAIR_STATE_IDLE)
+    {
+        memcpy (btm_cb.pairing_bda, p_bda, BD_ADDR_LEN);
+
+        btm_cb.pairing_flags = BTM_PAIR_FLAGS_PEER_STARTED_DD;
+        /* Make sure we reset the trusted mask to help against attacks */
+        BTM_SEC_CLR_TRUSTED_DEVICE(p_dev_rec->trusted_mask);
+    }
+
+    if (!p_cb->pairing_disabled && (p_cb->cfg.pin_type == HCI_PIN_TYPE_FIXED))
+    {
+        BTM_TRACE_EVENT ("btm_sec_pin_code_request fixed pin replying");
+        btm_sec_change_pairing_state (BTM_PAIR_STATE_WAIT_AUTH_COMPLETE);
+        btsnd_hcic_pin_code_req_reply (p_bda, p_cb->cfg.pin_code_len, p_cb->cfg.pin_code);
+        return;
+    }
+
+    /* Use the connecting device's CoD for the connection */
+    if ( (!memcmp (p_bda, p_cb->connecting_bda, BD_ADDR_LEN))
+         &&  (p_cb->connecting_dc[0] || p_cb->connecting_dc[1] || p_cb->connecting_dc[2]) )
+        memcpy (p_dev_rec->dev_class, p_cb->connecting_dc, DEV_CLASS_LEN);
+
+    /* We could have started connection after asking user for the PIN code */
+    if (btm_cb.pin_code_len != 0)
+    {
+        BTM_TRACE_EVENT ("btm_sec_pin_code_request bonding sending reply");
+        btsnd_hcic_pin_code_req_reply (p_bda, btm_cb.pin_code_len, p_cb->pin_code);
+
+        /* Mark that we forwarded received from the user PIN code */
+        btm_cb.pin_code_len = 0;
+
+        /* We can change mode back right away, that other connection being established */
+        /* is not forced to be secure - found a FW issue, so we can not do this
+        btm_restore_mode(); */
+
+        btm_sec_change_pairing_state (BTM_PAIR_STATE_WAIT_AUTH_COMPLETE);
+    }
+
+    /* If pairing disabled OR (no PIN callback and not bonding) */
+    /* OR we could not allocate entry in the database reject pairing request */
+    else if (p_cb->pairing_disabled
+             || (p_cb->api.p_pin_callback == NULL)
+
+             /* OR Microsoft keyboard can for some reason try to establish connection */
+             /*  the only thing we can do here is to shut it up.  Normally we will be originator */
+             /*  for keyboard bonding */
+             || (!p_dev_rec->is_originator
+                 && ((p_dev_rec->dev_class[1] & BTM_COD_MAJOR_CLASS_MASK) == BTM_COD_MAJOR_PERIPHERAL)
+                 &&  (p_dev_rec->dev_class[2] & BTM_COD_MINOR_KEYBOARD)) )
+    {
+        BTM_TRACE_WARNING("btm_sec_pin_code_request(): Pairing disabled:%d; PIN callback:%x, Dev Rec:%x!",
+                           p_cb->pairing_disabled, p_cb->api.p_pin_callback, p_dev_rec);
+
+        btsnd_hcic_pin_code_neg_reply (p_bda);
+    }
+    /* Notify upper layer of PIN request and start expiration timer */
+    else
+    {
+        btm_sec_change_pairing_state (BTM_PAIR_STATE_WAIT_LOCAL_PIN);
+        /* Pin code request can not come at the same time as connection request */
+        memcpy (p_cb->connecting_bda, p_bda, BD_ADDR_LEN);
+        memcpy (p_cb->connecting_dc,  p_dev_rec->dev_class, DEV_CLASS_LEN);
+
+        /* Check if the name is known */
+        /* Even if name is not known we might not be able to get one */
+        /* this is the case when we are already getting something from the */
+        /* device, so HCI level is flow controlled */
+        /* Also cannot send remote name request while paging, i.e. connection is not completed */
+        if (p_dev_rec->sec_flags & BTM_SEC_NAME_KNOWN)
+        {
+            BTM_TRACE_EVENT ("btm_sec_pin_code_request going for callback");
+
+            btm_cb.pairing_flags |= BTM_PAIR_FLAGS_PIN_REQD;
+            if (p_cb->api.p_pin_callback) {
+                (*p_cb->api.p_pin_callback) (p_bda, p_dev_rec->dev_class, p_dev_rec->sec_bd_name,
+                        (p_dev_rec->p_cur_service == NULL) ? FALSE
+                                : (p_dev_rec->p_cur_service->security_flags
+                                   & BTM_SEC_IN_MIN_16_DIGIT_PIN));
+            }
+        }
+        else
+        {
+            BTM_TRACE_EVENT ("btm_sec_pin_code_request going for remote name");
+
+            /* We received PIN code request for the device with unknown name */
+            /* it is not user friendly just to ask for the PIN without name */
+            /* try to get name at first */
+            if (!btsnd_hcic_rmt_name_req (p_dev_rec->bd_addr,
+                                          HCI_PAGE_SCAN_REP_MODE_R1,
+                                          HCI_MANDATARY_PAGE_SCAN_MODE, 0))
+            {
+                p_dev_rec->sec_flags |= BTM_SEC_NAME_KNOWN;
+                p_dev_rec->sec_bd_name[0] = 'f';
+                p_dev_rec->sec_bd_name[1] = '0';
+                BTM_TRACE_ERROR ("can not send rmt_name_req?? fake a name and call callback");
+
+                btm_cb.pairing_flags |= BTM_PAIR_FLAGS_PIN_REQD;
+                if (p_cb->api.p_pin_callback)
+                    (*p_cb->api.p_pin_callback) (p_bda, p_dev_rec->dev_class,
+                            p_dev_rec->sec_bd_name, (p_dev_rec->p_cur_service == NULL) ? FALSE
+                                    : (p_dev_rec->p_cur_service->security_flags
+                                       & BTM_SEC_IN_MIN_16_DIGIT_PIN));
+            }
+        }
+    }
+
+    return;
+}
+
+/*******************************************************************************
+**
+** Function         btm_sec_update_clock_offset
+**
+** Description      This function is called to update clock offset
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_sec_update_clock_offset (UINT16 handle, UINT16 clock_offset)
+{
+    tBTM_SEC_DEV_REC  *p_dev_rec;
+    tBTM_INQ_INFO     *p_inq_info;
+
+    if ((p_dev_rec = btm_find_dev_by_handle (handle)) == NULL)
+        return;
+
+    p_dev_rec->clock_offset = clock_offset | BTM_CLOCK_OFFSET_VALID;
+
+    if ((p_inq_info = BTM_InqDbRead(p_dev_rec->bd_addr)) == NULL)
+        return;
+
+    p_inq_info->results.clock_offset = clock_offset | BTM_CLOCK_OFFSET_VALID;
+}
+
+/******************************************************************
+** S T A T I C     F U N C T I O N S
+*******************************************************************/
+
+/*******************************************************************************
+**
+** Function         btm_sec_execute_procedure
+**
+** Description      This function is called to start required security
+**                  procedure.  There is a case when multiplexing protocol
+**                  calls this function on the originating side, connection to
+**                  the peer will not be established.  This function in this
+**                  case performs only authorization.
+**
+** Returns          BTM_SUCCESS     - permission is granted
+**                  BTM_CMD_STARTED - in process
+**                  BTM_NO_RESOURCES  - permission declined
+**
+*******************************************************************************/
+static tBTM_STATUS btm_sec_execute_procedure (tBTM_SEC_DEV_REC *p_dev_rec)
+{
+    BTM_TRACE_EVENT ("btm_sec_execute_procedure: Required:0x%x Flags:0x%x State:%d",
+                      p_dev_rec->security_required, p_dev_rec->sec_flags, p_dev_rec->sec_state);
+
+    /* There is a chance that we are getting name.  Wait until done. */
+    if (p_dev_rec->sec_state != 0)
+        return(BTM_CMD_STARTED);
+
+    /* If any security is required, get the name first */
+    if (!(p_dev_rec->sec_flags & BTM_SEC_NAME_KNOWN)
+        && (p_dev_rec->hci_handle != BTM_SEC_INVALID_HANDLE))
+    {
+        BTM_TRACE_EVENT ("Security Manager: Start get name");
+        if (!btm_sec_start_get_name (p_dev_rec))
+        {
+            return(BTM_NO_RESOURCES);
+        }
+        return(BTM_CMD_STARTED);
+    }
+
+    /* If connection is not authenticated and authentication is required */
+    /* start authentication and return PENDING to the caller */
+    if ((((!(p_dev_rec->sec_flags & BTM_SEC_AUTHENTICATED))
+        && (( p_dev_rec->is_originator && (p_dev_rec->security_required & BTM_SEC_OUT_AUTHENTICATE))
+            || (!p_dev_rec->is_originator && (p_dev_rec->security_required & BTM_SEC_IN_AUTHENTICATE))))
+        || (!(p_dev_rec->sec_flags & BTM_SEC_16_DIGIT_PIN_AUTHED)
+            && (!p_dev_rec->is_originator
+                    && (p_dev_rec->security_required & BTM_SEC_IN_MIN_16_DIGIT_PIN))))
+        && (p_dev_rec->hci_handle != BTM_SEC_INVALID_HANDLE))
+    {
+        /*
+         * We rely on BTM_SEC_16_DIGIT_PIN_AUTHED being set if MITM is in use,
+         * as 16 DIGIT is only needed if MITM is not used. Unfortunately, the
+         * BTM_SEC_AUTHENTICATED is used for both MITM and non-MITM
+         * authenticated connections, hence we cannot distinguish here.
+         */
+
+#if (L2CAP_UCD_INCLUDED == TRUE)
+        /* if incoming UCD packet, discard it */
+        if ( !p_dev_rec->is_originator && (p_dev_rec->is_ucd == TRUE ))
+            return(BTM_FAILED_ON_SECURITY);
+#endif
+
+        BTM_TRACE_EVENT ("Security Manager: Start authentication");
+
+        /*
+         * If we do have a link-key, but we end up here because we need an
+         * upgrade, then clear the link-key known and authenticated flag before
+         * restarting authentication.
+         * WARNING: If the controller has link-key, it is optional and
+         * recommended for the controller to send a Link_Key_Request.
+         * In case we need an upgrade, the only alternative would be to delete
+         * the existing link-key. That could lead to very bad user experience
+         * or even IOP issues, if a reconnect causes a new connection that
+         * requires an upgrade.
+         */
+        if ((p_dev_rec->sec_flags & BTM_SEC_LINK_KEY_KNOWN)
+                && (!(p_dev_rec->sec_flags & BTM_SEC_16_DIGIT_PIN_AUTHED)
+                    && (!p_dev_rec->is_originator && (p_dev_rec->security_required
+                            & BTM_SEC_IN_MIN_16_DIGIT_PIN)))) {
+            p_dev_rec->sec_flags &= ~(BTM_SEC_LINK_KEY_KNOWN | BTM_SEC_LINK_KEY_AUTHED
+                    | BTM_SEC_AUTHENTICATED);
+        }
+
+        if (!btm_sec_start_authentication (p_dev_rec))
+        {
+            return(BTM_NO_RESOURCES);
+        }
+        return(BTM_CMD_STARTED);
+    }
+
+    /* If connection is not encrypted and encryption is required */
+    /* start encryption and return PENDING to the caller */
+    if (!(p_dev_rec->sec_flags & BTM_SEC_ENCRYPTED)
+        && (( p_dev_rec->is_originator && (p_dev_rec->security_required & BTM_SEC_OUT_ENCRYPT))
+            || (!p_dev_rec->is_originator && (p_dev_rec->security_required & BTM_SEC_IN_ENCRYPT)))
+        && (p_dev_rec->hci_handle != BTM_SEC_INVALID_HANDLE))
+    {
+#if (L2CAP_UCD_INCLUDED == TRUE)
+        /* if incoming UCD packet, discard it */
+        if ( !p_dev_rec->is_originator && (p_dev_rec->is_ucd == TRUE ))
+            return(BTM_FAILED_ON_SECURITY);
+#endif
+
+        BTM_TRACE_EVENT ("Security Manager: Start encryption");
+
+        if (!btm_sec_start_encryption (p_dev_rec))
+        {
+            return(BTM_NO_RESOURCES);
+        }
+        return(BTM_CMD_STARTED);
+    }
+
+    if ((p_dev_rec->security_required & BTM_SEC_MODE4_LEVEL4) &&
+        (p_dev_rec->link_key_type != BTM_LKEY_TYPE_AUTH_COMB_P_256))
+    {
+        BTM_TRACE_EVENT("%s: Security Manager: SC only service, but link key type is 0x%02x -",
+                        "security failure", __FUNCTION__, p_dev_rec->link_key_type);
+        return (BTM_FAILED_ON_SECURITY);
+    }
+
+    /* If connection is not authorized and authorization is required */
+    /* start authorization and return PENDING to the caller */
+    if (!(p_dev_rec->sec_flags & BTM_SEC_AUTHORIZED)
+        && (( p_dev_rec->is_originator && (p_dev_rec->security_required & BTM_SEC_OUT_AUTHORIZE))
+            || (!p_dev_rec->is_originator && (p_dev_rec->security_required & BTM_SEC_IN_AUTHORIZE))))
+    {
+        BTM_TRACE_EVENT ("service id:%d, is trusted:%d",
+                          p_dev_rec->p_cur_service->service_id,
+                          (BTM_SEC_IS_SERVICE_TRUSTED(p_dev_rec->trusted_mask,
+                                                      p_dev_rec->p_cur_service->service_id)));
+        if ((btm_sec_are_all_trusted(p_dev_rec->trusted_mask) == FALSE) &&
+            (p_dev_rec->p_cur_service->service_id < BTM_SEC_MAX_SERVICES) &&
+            (BTM_SEC_IS_SERVICE_TRUSTED(p_dev_rec->trusted_mask,
+                                        p_dev_rec->p_cur_service->service_id) == FALSE))
+        {
+            BTM_TRACE_EVENT ("Security Manager: Start authorization");
+            return(btm_sec_start_authorization (p_dev_rec));
+        }
+    }
+
+    /* All required  security procedures already established */
+    p_dev_rec->security_required &= ~(BTM_SEC_OUT_AUTHORIZE | BTM_SEC_IN_AUTHORIZE |
+                                      BTM_SEC_OUT_AUTHENTICATE | BTM_SEC_IN_AUTHENTICATE |
+                                      BTM_SEC_OUT_ENCRYPT | BTM_SEC_IN_ENCRYPT |
+                                      BTM_SEC_FORCE_MASTER | BTM_SEC_ATTEMPT_MASTER |
+                                      BTM_SEC_FORCE_SLAVE | BTM_SEC_ATTEMPT_SLAVE);
+
+    BTM_TRACE_EVENT ("Security Manager: trusted:0x%04x%04x", p_dev_rec->trusted_mask[1], p_dev_rec->trusted_mask[0]);
+    BTM_TRACE_EVENT ("Security Manager: access granted");
+
+    return(BTM_SUCCESS);
+}
+
+/*******************************************************************************
+**
+** Function         btm_sec_start_get_name
+**
+** Description      This function is called to start get name procedure
+**
+** Returns          TRUE if started
+**
+*******************************************************************************/
+static BOOLEAN btm_sec_start_get_name (tBTM_SEC_DEV_REC *p_dev_rec)
+{
+    UINT8 tempstate = p_dev_rec->sec_state;
+
+    p_dev_rec->sec_state = BTM_SEC_STATE_GETTING_NAME;
+
+    /* Device should be connected, no need to provide correct page params */
+    /* 0 and NULL are as timeout and callback params because they are not used in security get name case */
+    if ((btm_initiate_rem_name (p_dev_rec->bd_addr, NULL, BTM_RMT_NAME_SEC,
+                                0, NULL)) != BTM_CMD_STARTED)
+    {
+        p_dev_rec->sec_state = tempstate;
+        return(FALSE);
+    }
+
+    return(TRUE);
+}
+
+/*******************************************************************************
+**
+** Function         btm_sec_start_authentication
+**
+** Description      This function is called to start authentication
+**
+** Returns          TRUE if started
+**
+*******************************************************************************/
+static BOOLEAN btm_sec_start_authentication (tBTM_SEC_DEV_REC *p_dev_rec)
+{
+    p_dev_rec->sec_state = BTM_SEC_STATE_AUTHENTICATING;
+
+    return(btsnd_hcic_auth_request (p_dev_rec->hci_handle));
+}
+
+/*******************************************************************************
+**
+** Function         btm_sec_start_encryption
+**
+** Description      This function is called to start encryption
+**
+** Returns          TRUE if started
+**
+*******************************************************************************/
+static BOOLEAN btm_sec_start_encryption (tBTM_SEC_DEV_REC *p_dev_rec)
+{
+    if (!btsnd_hcic_set_conn_encrypt (p_dev_rec->hci_handle, TRUE))
+        return(FALSE);
+
+    p_dev_rec->sec_state = BTM_SEC_STATE_ENCRYPTING;
+    return(TRUE);
+}
+
+/*******************************************************************************
+**
+** Function         btm_sec_start_authorization
+**
+** Description      This function is called to start authorization
+**
+** Returns          TRUE if started
+**
+*******************************************************************************/
+static UINT8 btm_sec_start_authorization (tBTM_SEC_DEV_REC *p_dev_rec)
+{
+    UINT8    result;
+    UINT8   *p_service_name = NULL;
+    UINT8    service_id;
+
+    if ((p_dev_rec->sec_flags & BTM_SEC_NAME_KNOWN)
+        || (p_dev_rec->hci_handle == BTM_SEC_INVALID_HANDLE))
+    {
+        if (!btm_cb.api.p_authorize_callback)
+            return(BTM_MODE_UNSUPPORTED);
+
+        if (p_dev_rec->p_cur_service)
+        {
+#if BTM_SEC_SERVICE_NAME_LEN > 0
+            if (p_dev_rec->is_originator)
+                p_service_name = p_dev_rec->p_cur_service->orig_service_name;
+            else
+                p_service_name = p_dev_rec->p_cur_service->term_service_name;
+#endif
+            service_id = p_dev_rec->p_cur_service->service_id;
+        }
+        else
+            service_id = 0;
+
+        /* Send authorization request if not already sent during this service connection */
+        if (p_dev_rec->last_author_service_id == BTM_SEC_NO_LAST_SERVICE_ID
+            || p_dev_rec->last_author_service_id != service_id)
+        {
+            p_dev_rec->sec_state = BTM_SEC_STATE_AUTHORIZING;
+            result = (*btm_cb.api.p_authorize_callback) (p_dev_rec->bd_addr,
+                                                     p_dev_rec->dev_class,
+                                                     p_dev_rec->sec_bd_name,
+                                                     p_service_name,
+                                                     service_id,
+                                                     p_dev_rec->is_originator);
+        }
+
+        else    /* Already authorized once for this L2CAP bringup */
+        {
+            BTM_TRACE_DEBUG ("btm_sec_start_authorization: (Ignoring extra Authorization prompt for service %d)", service_id);
+            return (BTM_SUCCESS);
+        }
+
+        if (result == BTM_SUCCESS)
+        {
+            p_dev_rec->sec_flags |= BTM_SEC_AUTHORIZED;
+
+            /* Save the currently authorized service in case we are asked again by another multiplexer layer */
+            if (!p_dev_rec->is_originator)
+                p_dev_rec->last_author_service_id = service_id;
+
+            p_dev_rec->sec_state = BTM_SEC_STATE_IDLE;
+        }
+        return(result);
+    }
+    btm_sec_start_get_name (p_dev_rec);
+    return(BTM_CMD_STARTED);
+}
+
+/*******************************************************************************
+**
+** Function         btm_sec_are_all_trusted
+**
+** Description      This function is called check if all services are trusted
+**
+** Returns          TRUE if all are trusted, otherwise FALSE
+**
+*******************************************************************************/
+BOOLEAN btm_sec_are_all_trusted(UINT32 p_mask[])
+{
+    UINT32 trusted_inx;
+    for (trusted_inx = 0; trusted_inx < BTM_SEC_SERVICE_ARRAY_SIZE; trusted_inx++)
+    {
+        if (p_mask[trusted_inx] != BTM_SEC_TRUST_ALL)
+            return(FALSE);
+    }
+
+    return(TRUE);
+}
+
+/*******************************************************************************
+**
+** Function         btm_sec_find_first_serv
+**
+** Description      Look for the first record in the service database
+**                  with specified PSM
+**
+** Returns          Pointer to the record or NULL
+**
+*******************************************************************************/
+tBTM_SEC_SERV_REC *btm_sec_find_first_serv (CONNECTION_TYPE conn_type, UINT16 psm)
+{
+    tBTM_SEC_SERV_REC *p_serv_rec = &btm_cb.sec_serv_rec[0];
+    int i;
+    BOOLEAN is_originator;
+
+#if (L2CAP_UCD_INCLUDED == TRUE)
+
+    if ( conn_type & CONNECTION_TYPE_ORIG_MASK )
+        is_originator = TRUE;
+    else
+        is_originator = FALSE;
+#else
+    is_originator = conn_type;
+#endif
+
+    if (is_originator && btm_cb.p_out_serv && btm_cb.p_out_serv->psm == psm)
+    {
+        /* If this is outgoing connection and the PSM matches p_out_serv,
+         * use it as the current service */
+        return btm_cb.p_out_serv;
+    }
+
+    /* otherwise, just find the first record with the specified PSM */
+    for (i = 0; i < BTM_SEC_MAX_SERVICE_RECORDS; i++, p_serv_rec++)
+    {
+        if ( (p_serv_rec->security_flags & BTM_SEC_IN_USE) && (p_serv_rec->psm == psm) )
+            return(p_serv_rec);
+    }
+    return(NULL);
+}
+
+/*******************************************************************************
+**
+** Function         btm_sec_find_next_serv
+**
+** Description      Look for the next record in the service database
+**                  with specified PSM
+**
+** Returns          Pointer to the record or NULL
+**
+*******************************************************************************/
+static tBTM_SEC_SERV_REC *btm_sec_find_next_serv (tBTM_SEC_SERV_REC *p_cur)
+{
+    tBTM_SEC_SERV_REC *p_serv_rec   = &btm_cb.sec_serv_rec[0];
+    int               i;
+
+    for (i = 0; i < BTM_SEC_MAX_SERVICE_RECORDS; i++, p_serv_rec++)
+    {
+        if ((p_serv_rec->security_flags & BTM_SEC_IN_USE)
+            && (p_serv_rec->psm == p_cur->psm) )
+        {
+            if (p_cur != p_serv_rec)
+            {
+                return(p_serv_rec);
+            }
+        }
+    }
+    return(NULL);
+}
+
+/*******************************************************************************
+**
+** Function         btm_sec_find_mx_serv
+**
+** Description      Look for the record in the service database with specified
+**                  PSM and multiplexor channel information
+**
+** Returns          Pointer to the record or NULL
+**
+*******************************************************************************/
+static tBTM_SEC_SERV_REC *btm_sec_find_mx_serv (UINT8 is_originator, UINT16 psm,
+                                                UINT32 mx_proto_id, UINT32 mx_chan_id)
+{
+    tBTM_SEC_SERV_REC *p_out_serv = btm_cb.p_out_serv;
+    tBTM_SEC_SERV_REC *p_serv_rec = &btm_cb.sec_serv_rec[0];
+    int i;
+
+    BTM_TRACE_DEBUG ("%s()", __func__);
+    if (is_originator && p_out_serv && p_out_serv->psm == psm
+        && p_out_serv->mx_proto_id == mx_proto_id
+        && p_out_serv->orig_mx_chan_id == mx_chan_id)
+    {
+        /* If this is outgoing connection and the parameters match p_out_serv,
+         * use it as the current service */
+        return btm_cb.p_out_serv;
+    }
+
+    /* otherwise, the old way */
+    for (i = 0; i < BTM_SEC_MAX_SERVICE_RECORDS; i++, p_serv_rec++)
+    {
+        if ((p_serv_rec->security_flags & BTM_SEC_IN_USE)
+            && (p_serv_rec->psm == psm)
+            && (p_serv_rec->mx_proto_id == mx_proto_id)
+            && (( is_originator && (p_serv_rec->orig_mx_chan_id  == mx_chan_id))
+                || (!is_originator && (p_serv_rec->term_mx_chan_id  == mx_chan_id))))
+        {
+            return(p_serv_rec);
+        }
+    }
+    return(NULL);
+}
+
+/*******************************************************************************
+**
+** Function         btm_sec_collision_timeout
+**
+** Description      Encryption could not start because of the collision
+**                  try to do it again
+**
+** Returns          Pointer to the TLE struct
+**
+*******************************************************************************/
+static void btm_sec_collision_timeout(UNUSED_ATTR void *data)
+{
+    BTM_TRACE_EVENT ("%s()", __func__);
+
+    tBTM_STATUS status = btm_sec_execute_procedure (btm_cb.p_collided_dev_rec);
+
+    /* If result is pending reply from the user or from the device is pending */
+    if (status != BTM_CMD_STARTED)
+    {
+        /* There is no next procedure or start of procedure failed, notify the waiting layer */
+        btm_sec_dev_rec_cback_event (btm_cb.p_collided_dev_rec, status, FALSE);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btm_sec_link_key_request
+**
+** Description      This function is called when controller requests link key
+**
+** Returns          Pointer to the record or NULL
+**
+*******************************************************************************/
+static void btm_send_link_key_notif (tBTM_SEC_DEV_REC *p_dev_rec)
+{
+    if (btm_cb.api.p_link_key_callback)
+        (*btm_cb.api.p_link_key_callback) (p_dev_rec->bd_addr, p_dev_rec->dev_class,
+                                           p_dev_rec->sec_bd_name, p_dev_rec->link_key,
+                                           p_dev_rec->link_key_type);
+}
+
+/*******************************************************************************
+**
+** Function         BTM_ReadTrustedMask
+**
+** Description      Get trusted mask for the peer device
+**
+** Parameters:      bd_addr   - Address of the device
+**
+** Returns          NULL, if the device record is not found.
+**                  otherwise, the trusted mask
+**
+*******************************************************************************/
+UINT32 * BTM_ReadTrustedMask (BD_ADDR bd_addr)
+{
+    tBTM_SEC_DEV_REC *p_dev_rec = btm_find_dev (bd_addr);
+    if (p_dev_rec != NULL)
+        return(p_dev_rec->trusted_mask);
+    return NULL;
+}
+
+/*******************************************************************************
+**
+** Function         btm_restore_mode
+**
+** Description      This function returns the security mode to previous setting
+**                  if it was changed during bonding.
+**
+**
+** Parameters:      void
+**
+*******************************************************************************/
+static void btm_restore_mode(void)
+{
+    if (btm_cb.security_mode_changed)
+    {
+        btm_cb.security_mode_changed = FALSE;
+        BTM_TRACE_DEBUG("%s() Auth enable -> %d", __func__, (btm_cb.security_mode == BTM_SEC_MODE_LINK));
+        btsnd_hcic_write_auth_enable ((UINT8)(btm_cb.security_mode == BTM_SEC_MODE_LINK));
+    }
+
+    if (btm_cb.pin_type_changed)
+    {
+        btm_cb.pin_type_changed = FALSE;
+        btsnd_hcic_write_pin_type (btm_cb.cfg.pin_type);
+    }
+}
+
+
+bool is_sec_state_equal(void *data, void *context)
+{
+    tBTM_SEC_DEV_REC *p_dev_rec = data;
+    UINT8 *state = context;
+
+    if (p_dev_rec->sec_state == *state)
+        return false;
+
+    return true;
+}
+
+/*******************************************************************************
+**
+** Function         btm_sec_find_dev_by_sec_state
+**
+** Description      Look for the record in the device database for the device
+**                  which is being authenticated or encrypted
+**
+** Returns          Pointer to the record or NULL
+**
+*******************************************************************************/
+tBTM_SEC_DEV_REC *btm_sec_find_dev_by_sec_state (UINT8 state)
+{
+    list_node_t *n = list_foreach(btm_cb.sec_dev_rec, is_sec_state_equal, &state);
+    if (n)
+        return list_node(n);
+
+    return NULL;
+}
+
+/*******************************************************************************
+**
+** Function         btm_sec_change_pairing_state
+**
+** Description      This function is called to change pairing state
+**
+*******************************************************************************/
+static void btm_sec_change_pairing_state (tBTM_PAIRING_STATE new_state)
+{
+    tBTM_PAIRING_STATE  old_state = btm_cb.pairing_state;
+
+    BTM_TRACE_EVENT ("%s()  Old: %s", __func__, btm_pair_state_descr(btm_cb.pairing_state));
+    BTM_TRACE_EVENT ("%s()  New: %s pairing_flags:0x%x", __func__,
+            btm_pair_state_descr(new_state), btm_cb.pairing_flags);
+
+    btm_cb.pairing_state = new_state;
+
+    if (new_state == BTM_PAIR_STATE_IDLE)
+    {
+        alarm_cancel(btm_cb.pairing_timer);
+
+        btm_cb.pairing_flags = 0;
+        btm_cb.pin_code_len  = 0;
+
+        /* Make sure the the lcb shows we are not bonding */
+        l2cu_update_lcb_4_bonding (btm_cb.pairing_bda, FALSE);
+
+        btm_restore_mode();
+        btm_sec_check_pending_reqs();
+        btm_inq_clear_ssp();
+
+        memset (btm_cb.pairing_bda, 0xFF, BD_ADDR_LEN);
+    }
+    else
+    {
+        /* If transitioning out of idle, mark the lcb as bonding */
+        if (old_state == BTM_PAIR_STATE_IDLE)
+            l2cu_update_lcb_4_bonding (btm_cb.pairing_bda, TRUE);
+
+        alarm_set_on_queue(btm_cb.pairing_timer,
+                           BTM_SEC_TIMEOUT_VALUE * 1000,
+                           btm_sec_pairing_timeout, NULL,
+                           btu_general_alarm_queue);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btm_pair_state_descr
+**
+** Description      Return state description for tracing
+**
+*******************************************************************************/
+#if (BT_USE_TRACES == TRUE)
+static char *btm_pair_state_descr (tBTM_PAIRING_STATE state)
+{
+#if (BT_TRACE_VERBOSE == TRUE)
+    switch (state)
+    {
+        case BTM_PAIR_STATE_IDLE:                   return("IDLE");
+        case BTM_PAIR_STATE_GET_REM_NAME:           return("GET_REM_NAME");
+        case BTM_PAIR_STATE_WAIT_PIN_REQ:           return("WAIT_PIN_REQ");
+        case BTM_PAIR_STATE_WAIT_LOCAL_PIN:         return("WAIT_LOCAL_PIN");
+        case BTM_PAIR_STATE_WAIT_NUMERIC_CONFIRM:   return("WAIT_NUM_CONFIRM");
+        case BTM_PAIR_STATE_KEY_ENTRY:              return("KEY_ENTRY");
+        case BTM_PAIR_STATE_WAIT_LOCAL_OOB_RSP:     return("WAIT_LOCAL_OOB_RSP");
+        case BTM_PAIR_STATE_WAIT_LOCAL_IOCAPS:      return("WAIT_LOCAL_IOCAPS");
+        case BTM_PAIR_STATE_INCOMING_SSP:           return("INCOMING_SSP");
+        case BTM_PAIR_STATE_WAIT_AUTH_COMPLETE:     return("WAIT_AUTH_COMPLETE");
+        case BTM_PAIR_STATE_WAIT_DISCONNECT:        return("WAIT_DISCONNECT");
+    }
+
+    return("???");
+#else
+    sprintf(btm_cb.state_temp_buffer,"%hhu",state);
+
+    return(btm_cb.state_temp_buffer);
+#endif
+}
+#endif
+
+/*******************************************************************************
+**
+** Function         btm_sec_dev_rec_cback_event
+**
+** Description      This function calls the callback function with the given
+**                  result and clear the callback function.
+**
+** Parameters:      void
+**
+*******************************************************************************/
+void btm_sec_dev_rec_cback_event (tBTM_SEC_DEV_REC *p_dev_rec, UINT8 res, BOOLEAN is_le_transport)
+{
+    tBTM_SEC_CALLBACK   *p_callback = p_dev_rec->p_callback;
+
+    if (p_dev_rec->p_callback)
+    {
+        p_dev_rec->p_callback = NULL;
+
+#if BLE_INCLUDED == TRUE
+        if (is_le_transport)
+           (*p_callback) (p_dev_rec->ble.pseudo_addr, BT_TRANSPORT_LE, p_dev_rec->p_ref_data, res);
+        else
+#endif
+           (*p_callback) (p_dev_rec->bd_addr, BT_TRANSPORT_BR_EDR, p_dev_rec->p_ref_data, res);
+    }
+
+    btm_sec_check_pending_reqs();
+}
+
+/*******************************************************************************
+**
+** Function         btm_sec_queue_mx_request
+**
+** Description      Return state description for tracing
+**
+*******************************************************************************/
+static BOOLEAN btm_sec_queue_mx_request (BD_ADDR bd_addr,  UINT16 psm,  BOOLEAN is_orig,
+                                         UINT32 mx_proto_id, UINT32 mx_chan_id,
+                                         tBTM_SEC_CALLBACK *p_callback, void *p_ref_data)
+{
+    tBTM_SEC_QUEUE_ENTRY *p_e = (tBTM_SEC_QUEUE_ENTRY *)osi_malloc(sizeof(tBTM_SEC_QUEUE_ENTRY));
+
+    p_e->psm            = psm;
+    p_e->is_orig        = is_orig;
+    p_e->p_callback     = p_callback;
+    p_e->p_ref_data     = p_ref_data;
+    p_e->mx_proto_id    = mx_proto_id;
+    p_e->mx_chan_id     = mx_chan_id;
+    p_e->transport      = BT_TRANSPORT_BR_EDR;
+    p_e->sec_act        = 0;
+
+    memcpy(p_e->bd_addr, bd_addr, BD_ADDR_LEN);
+
+    BTM_TRACE_EVENT("%s() PSM: 0x%04x  Is_Orig: %u  mx_proto_id: %u  mx_chan_id: %u",
+                     __func__, psm, is_orig, mx_proto_id, mx_chan_id);
+
+    fixed_queue_enqueue(btm_cb.sec_pending_q, p_e);
+
+    return TRUE;
+}
+
+static BOOLEAN btm_sec_check_prefetch_pin (tBTM_SEC_DEV_REC  *p_dev_rec)
+{
+    UINT8 major = (UINT8)(p_dev_rec->dev_class[1] & BTM_COD_MAJOR_CLASS_MASK);
+    UINT8 minor = (UINT8)(p_dev_rec->dev_class[2] & BTM_COD_MINOR_CLASS_MASK);
+    BOOLEAN rv = FALSE;
+
+    if ((major == BTM_COD_MAJOR_AUDIO)
+        &&  ((minor == BTM_COD_MINOR_CONFM_HANDSFREE) || (minor == BTM_COD_MINOR_CAR_AUDIO)) )
+    {
+        BTM_TRACE_EVENT ("%s() Skipping pre-fetch PIN for carkit COD Major: 0x%02x Minor: 0x%02x",
+            __func__, major, minor);
+
+        if (btm_cb.security_mode_changed == FALSE)
+        {
+            btm_cb.security_mode_changed = TRUE;
+#ifdef APPL_AUTH_WRITE_EXCEPTION
+            if(!(APPL_AUTH_WRITE_EXCEPTION)(p_dev_rec->bd_addr))
+#endif
+                btsnd_hcic_write_auth_enable (TRUE);
+        }
+    }
+    else
+    {
+        btm_sec_change_pairing_state (BTM_PAIR_STATE_WAIT_LOCAL_PIN);
+
+        /* If we got a PIN, use that, else try to get one */
+        if (btm_cb.pin_code_len)
+        {
+            BTM_PINCodeReply (p_dev_rec->bd_addr, BTM_SUCCESS, btm_cb.pin_code_len, btm_cb.pin_code, p_dev_rec->trusted_mask);
+        }
+        else
+        {
+            /* pin was not supplied - pre-fetch pin code now */
+            if (btm_cb.api.p_pin_callback && ((btm_cb.pairing_flags & BTM_PAIR_FLAGS_PIN_REQD) == 0))
+            {
+                BTM_TRACE_DEBUG("%s() PIN code callback called", __func__);
+                if (btm_bda_to_acl(p_dev_rec->bd_addr, BT_TRANSPORT_BR_EDR) == NULL)
+                btm_cb.pairing_flags |= BTM_PAIR_FLAGS_PIN_REQD;
+                (btm_cb.api.p_pin_callback) (p_dev_rec->bd_addr, p_dev_rec->dev_class,
+                        p_dev_rec->sec_bd_name, (p_dev_rec->p_cur_service == NULL) ? FALSE
+                                : (p_dev_rec->p_cur_service->security_flags
+                                   & BTM_SEC_IN_MIN_16_DIGIT_PIN));
+            }
+        }
+
+        rv = TRUE;
+    }
+
+    return rv;
+}
+
+/*******************************************************************************
+**
+** Function         btm_sec_auth_payload_tout
+**
+** Description      Processes the HCI Autheniticated Payload Timeout Event
+**                  indicating that a packet containing a valid MIC on the
+**                  connection handle was not received within the programmed
+**                  timeout value. (Spec Default is 30 secs, but can be
+**                  changed via the BTM_SecSetAuthPayloadTimeout() function.
+**
+*******************************************************************************/
+void btm_sec_auth_payload_tout (UINT8 *p, UINT16 hci_evt_len)
+{
+    UINT16 handle;
+
+    STREAM_TO_UINT16 (handle, p);
+    handle = HCID_GET_HANDLE (handle);
+
+    /* Will be exposed to upper layers in the future if/when determined necessary */
+    BTM_TRACE_ERROR ("%s on handle 0x%02x", __func__, handle);
+}
+
+/*******************************************************************************
+**
+** Function         btm_sec_queue_encrypt_request
+**
+** Description      encqueue encryption request when device has active security
+**                  process pending.
+**
+*******************************************************************************/
+static BOOLEAN btm_sec_queue_encrypt_request (BD_ADDR bd_addr, tBT_TRANSPORT transport,
+                                         tBTM_SEC_CALLBACK *p_callback, void *p_ref_data,
+                                         tBTM_BLE_SEC_ACT sec_act)
+{
+    tBTM_SEC_QUEUE_ENTRY *p_e =
+        (tBTM_SEC_QUEUE_ENTRY *)osi_malloc(sizeof(tBTM_SEC_QUEUE_ENTRY) + 1);
+
+    p_e->psm        = 0;  /* if PSM 0, encryption request */
+    p_e->p_callback = p_callback;
+    p_e->p_ref_data = p_ref_data;
+    p_e->transport  = transport;
+    p_e->sec_act    = sec_act;
+    memcpy(p_e->bd_addr, bd_addr, BD_ADDR_LEN);
+    fixed_queue_enqueue(btm_cb.sec_pending_q, p_e);
+
+    return TRUE;
+}
+
+/*******************************************************************************
+**
+** Function         btm_sec_set_peer_sec_caps
+**
+** Description      This function is called to set sm4 and rmt_sec_caps fields
+**                  based on the available peer device features.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_sec_set_peer_sec_caps(tACL_CONN *p_acl_cb, tBTM_SEC_DEV_REC *p_dev_rec)
+{
+    BD_ADDR     rem_bd_addr;
+    UINT8       *p_rem_bd_addr;
+
+    if ((btm_cb.security_mode == BTM_SEC_MODE_SP ||
+         btm_cb.security_mode == BTM_SEC_MODE_SP_DEBUG ||
+         btm_cb.security_mode == BTM_SEC_MODE_SC) &&
+        HCI_SSP_HOST_SUPPORTED(p_acl_cb->peer_lmp_features[HCI_EXT_FEATURES_PAGE_1]))
+    {
+        p_dev_rec->sm4 = BTM_SM4_TRUE;
+        p_dev_rec->remote_supports_secure_connections =
+            (HCI_SC_HOST_SUPPORTED(p_acl_cb->peer_lmp_features[HCI_EXT_FEATURES_PAGE_1]));
+    }
+    else
+    {
+        p_dev_rec->sm4 = BTM_SM4_KNOWN;
+        p_dev_rec->remote_supports_secure_connections = FALSE;
+    }
+
+    BTM_TRACE_API("%s: sm4: 0x%02x, rmt_support_for_secure_connections %d", __FUNCTION__,
+                  p_dev_rec->sm4, p_dev_rec->remote_supports_secure_connections);
+
+    if (p_dev_rec->remote_features_needed)
+    {
+        BTM_TRACE_EVENT("%s: Now device in SC Only mode, waiting for peer remote features!",
+                        __FUNCTION__);
+        p_rem_bd_addr = (UINT8*) rem_bd_addr;
+        BDADDR_TO_STREAM(p_rem_bd_addr, p_dev_rec->bd_addr);
+        p_rem_bd_addr = (UINT8*) rem_bd_addr;
+        btm_io_capabilities_req(p_rem_bd_addr);
+        p_dev_rec->remote_features_needed = FALSE;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btm_sec_is_serv_level0
+**
+** Description      This function is called to check if the service corresponding
+**                  to PSM is security mode 4 level 0 service.
+**
+** Returns          TRUE if the service is security mode 4 level 0 service
+**
+*******************************************************************************/
+static BOOLEAN btm_sec_is_serv_level0(UINT16 psm)
+{
+    if (psm == BT_PSM_SDP)
+    {
+        BTM_TRACE_DEBUG("%s: PSM: 0x%04x -> mode 4 level 0 service", __FUNCTION__, psm);
+        return TRUE;
+    }
+    return FALSE;
+}
+
+/*******************************************************************************
+**
+** Function         btm_sec_check_pending_enc_req
+**
+** Description      This function is called to send pending encryption callback if
+**                  waiting
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btm_sec_check_pending_enc_req (tBTM_SEC_DEV_REC  *p_dev_rec, tBT_TRANSPORT transport,
+                                            UINT8 encr_enable)
+{
+    if (fixed_queue_is_empty(btm_cb.sec_pending_q))
+        return;
+
+    UINT8 res = encr_enable ? BTM_SUCCESS : BTM_ERR_PROCESSING;
+    list_t *list = fixed_queue_get_list(btm_cb.sec_pending_q);
+    for (const list_node_t *node = list_begin(list); node != list_end(list); ) {
+        tBTM_SEC_QUEUE_ENTRY *p_e = (tBTM_SEC_QUEUE_ENTRY *)list_node(node);
+        node = list_next(node);
+
+        if (memcmp(p_e->bd_addr, p_dev_rec->bd_addr, BD_ADDR_LEN) == 0 && p_e->psm == 0
+#if BLE_INCLUDED == TRUE
+            && p_e->transport == transport
+#endif
+            )
+        {
+            if (encr_enable == 0 || transport == BT_TRANSPORT_BR_EDR
+#if BLE_INCLUDED == TRUE
+                || p_e->sec_act == BTM_BLE_SEC_ENCRYPT
+                || p_e->sec_act == BTM_BLE_SEC_ENCRYPT_NO_MITM
+                || (p_e->sec_act == BTM_BLE_SEC_ENCRYPT_MITM && p_dev_rec->sec_flags
+                    & BTM_SEC_LE_AUTHENTICATED)
+#endif
+               )
+            {
+                if (p_e->p_callback)
+                    (*p_e->p_callback) (p_dev_rec->bd_addr, transport, p_e->p_ref_data, res);
+                fixed_queue_try_remove_from_queue(btm_cb.sec_pending_q, (void *)p_e);
+            }
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btm_sec_set_serv_level4_flags
+**
+** Description      This function is called to set security mode 4 level 4 flags.
+**
+** Returns          service security requirements updated to include secure
+**                  connections only mode.
+**
+*******************************************************************************/
+static UINT16 btm_sec_set_serv_level4_flags(UINT16 cur_security, BOOLEAN is_originator)
+{
+    UINT16  sec_level4_flags = is_originator ? BTM_SEC_OUT_LEVEL4_FLAGS : BTM_SEC_IN_LEVEL4_FLAGS;
+
+    return cur_security | sec_level4_flags;
+}
+
+/*******************************************************************************
+**
+** Function         btm_sec_clear_ble_keys
+**
+** Description      This function is called to clear out the BLE keys.
+**                  Typically when devices are removed in BTM_SecDeleteDevice,
+**                  or when a new BT Link key is generated.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btm_sec_clear_ble_keys (tBTM_SEC_DEV_REC  *p_dev_rec)
+{
+
+    BTM_TRACE_DEBUG ("%s() Clearing BLE Keys", __func__);
+#if (SMP_INCLUDED== TRUE)
+    p_dev_rec->ble.key_type = BTM_LE_KEY_NONE;
+    memset (&p_dev_rec->ble.keys, 0, sizeof(tBTM_SEC_BLE_KEYS));
+
+#if (BLE_PRIVACY_SPT == TRUE)
+    btm_ble_resolving_list_remove_dev(p_dev_rec);
+#endif
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         btm_sec_is_a_bonded_dev
+**
+** Description       Is the specified device is a bonded device
+**
+** Returns          TRUE - dev is bonded
+**
+*******************************************************************************/
+BOOLEAN btm_sec_is_a_bonded_dev (BD_ADDR bda)
+{
+
+    tBTM_SEC_DEV_REC *p_dev_rec= btm_find_dev (bda);
+    BOOLEAN is_bonded= FALSE;
+
+    if (p_dev_rec &&
+#if (SMP_INCLUDED == TRUE)
+        ((p_dev_rec->ble.key_type && (p_dev_rec->sec_flags & BTM_SEC_LE_LINK_KEY_KNOWN))||
+#else
+        (
+#endif
+         (p_dev_rec->sec_flags & BTM_SEC_LINK_KEY_KNOWN)))
+    {
+        is_bonded = TRUE;
+    }
+    BTM_TRACE_DEBUG ("%s() is_bonded=%d", __func__, is_bonded);
+    return(is_bonded);
+}
+
+/*******************************************************************************
+**
+** Function         btm_sec_is_le_capable_dev
+**
+** Description       Is the specified device is dual mode or LE only device
+**
+** Returns          TRUE - dev is a dual mode
+**
+*******************************************************************************/
+BOOLEAN btm_sec_is_le_capable_dev (BD_ADDR bda)
+{
+    tBTM_SEC_DEV_REC *p_dev_rec= btm_find_dev (bda);
+    BOOLEAN le_capable = FALSE;
+
+#if (BLE_INCLUDED== TRUE)
+    if (p_dev_rec && (p_dev_rec->device_type & BT_DEVICE_TYPE_BLE) == BT_DEVICE_TYPE_BLE)
+        le_capable  = TRUE;
+#endif
+    return le_capable;
+}
+
+/*******************************************************************************
+**
+** Function         btm_sec_use_smp_br_chnl
+**
+** Description      The function checks if SMP BR connection can be used with
+**                  the peer.
+**                  Is called when authentication for dedicated bonding is
+**                  successfully completed.
+**
+** Returns          TRUE - if SMP BR connection can be used (the link key is
+**                         generated from P-256 and the peer supports Security
+**                         Manager over BR).
+**
+*******************************************************************************/
+static BOOLEAN btm_sec_use_smp_br_chnl(tBTM_SEC_DEV_REC *p_dev_rec)
+{
+    UINT32  ext_feat;
+    UINT8   chnl_mask[L2CAP_FIXED_CHNL_ARRAY_SIZE];
+
+    BTM_TRACE_DEBUG ("%s() link_key_type = 0x%x", __func__,
+                      p_dev_rec->link_key_type);
+
+    if ((p_dev_rec->link_key_type != BTM_LKEY_TYPE_UNAUTH_COMB_P_256) &&
+        (p_dev_rec->link_key_type != BTM_LKEY_TYPE_AUTH_COMB_P_256))
+         return FALSE;
+
+    if (!L2CA_GetPeerFeatures (p_dev_rec->bd_addr, &ext_feat, chnl_mask))
+        return FALSE;
+
+    if (!(chnl_mask[0] & L2CAP_FIXED_CHNL_SMP_BR_BIT))
+        return FALSE;
+
+    return TRUE;
+}
+
+/*******************************************************************************
+**
+** Function         btm_sec_is_master
+**
+** Description      The function checks if the device is BR/EDR master after
+**                  pairing is completed.
+**
+** Returns          TRUE - if the device is master.
+**
+*******************************************************************************/
+static BOOLEAN btm_sec_is_master(tBTM_SEC_DEV_REC *p_dev_rec)
+{
+    tACL_CONN *p= btm_bda_to_acl(p_dev_rec->bd_addr, BT_TRANSPORT_BR_EDR);
+    return (p && (p->link_role == BTM_ROLE_MASTER));
+}
+
diff --git a/rtkbt/code/bt/stack/btu/btu_hcif.c b/rtkbt/code/bt/stack/btu/btu_hcif.c
new file mode 100755
index 0000000..2b46008
--- /dev/null
+++ b/rtkbt/code/bt/stack/btu/btu_hcif.c
@@ -0,0 +1,1709 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains functions that interface with the HCI transport. On
+ *  the receive side, it routes events to the appropriate handler, e.g.
+ *  L2CAP, ScoMgr. On the transmit side, it manages the command
+ *  transmission.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_btu_hcif"
+
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "device/include/controller.h"
+#include "osi/include/log.h"
+#include "osi/include/osi.h"
+#include "bt_types.h"
+#include "bt_utils.h"
+#include "btm_api.h"
+#include "btm_int.h"
+#include "btu.h"
+#include "bt_common.h"
+#include "hci_layer.h"
+#include "hcimsgs.h"
+#include "l2c_int.h"
+#ifdef BLUETOOTH_RTK_API
+#include "rtkbt_api.h"
+#endif
+// TODO(zachoverflow): remove this horrible hack
+#include "btu.h"
+extern fixed_queue_t *btu_hci_msg_queue;
+
+extern void btm_process_cancel_complete(UINT8 status, UINT8 mode);
+extern void btm_ble_test_command_complete(UINT8 *p);
+
+/********************************************************************************/
+/*              L O C A L    F U N C T I O N     P R O T O T Y P E S            */
+/********************************************************************************/
+static void btu_hcif_inquiry_comp_evt (UINT8 *p);
+static void btu_hcif_inquiry_result_evt (UINT8 *p);
+static void btu_hcif_inquiry_rssi_result_evt (UINT8 *p);
+static void btu_hcif_extended_inquiry_result_evt (UINT8 *p);
+
+static void btu_hcif_connection_comp_evt (UINT8 *p);
+static void btu_hcif_connection_request_evt (UINT8 *p);
+static void btu_hcif_disconnection_comp_evt (UINT8 *p);
+static void btu_hcif_authentication_comp_evt (UINT8 *p);
+static void btu_hcif_rmt_name_request_comp_evt (UINT8 *p, UINT16 evt_len);
+static void btu_hcif_encryption_change_evt (UINT8 *p);
+static void btu_hcif_read_rmt_features_comp_evt (UINT8 *p);
+static void btu_hcif_read_rmt_ext_features_comp_evt (UINT8 *p);
+static void btu_hcif_read_rmt_version_comp_evt (UINT8 *p);
+static void btu_hcif_qos_setup_comp_evt (UINT8 *p);
+static void btu_hcif_command_complete_evt (BT_HDR *response, void *context);
+static void btu_hcif_command_status_evt (uint8_t status, BT_HDR *command, void *context);
+static void btu_hcif_hardware_error_evt (UINT8 *p);
+static void btu_hcif_flush_occured_evt (void);
+static void btu_hcif_role_change_evt (UINT8 *p);
+static void btu_hcif_num_compl_data_pkts_evt (UINT8 *p);
+static void btu_hcif_mode_change_evt (UINT8 *p);
+static void btu_hcif_pin_code_request_evt (UINT8 *p);
+static void btu_hcif_link_key_request_evt (UINT8 *p);
+static void btu_hcif_link_key_notification_evt (UINT8 *p);
+static void btu_hcif_loopback_command_evt (void);
+static void btu_hcif_data_buf_overflow_evt (void);
+static void btu_hcif_max_slots_changed_evt (void);
+static void btu_hcif_read_clock_off_comp_evt (UINT8 *p);
+static void btu_hcif_conn_pkt_type_change_evt (void);
+static void btu_hcif_qos_violation_evt (UINT8 *p);
+static void btu_hcif_page_scan_mode_change_evt (void);
+static void btu_hcif_page_scan_rep_mode_chng_evt (void);
+static void btu_hcif_esco_connection_comp_evt(UINT8 *p);
+static void btu_hcif_esco_connection_chg_evt(UINT8 *p);
+
+/* Simple Pairing Events */
+static void btu_hcif_host_support_evt (UINT8 *p);
+static void btu_hcif_io_cap_request_evt (UINT8 *p);
+static void btu_hcif_io_cap_response_evt (UINT8 *p);
+static void btu_hcif_user_conf_request_evt (UINT8 *p);
+static void btu_hcif_user_passkey_request_evt (UINT8 *p);
+static void btu_hcif_user_passkey_notif_evt (UINT8 *p);
+static void btu_hcif_keypress_notif_evt (UINT8 *p);
+static void btu_hcif_rem_oob_request_evt (UINT8 *p);
+
+static void btu_hcif_simple_pair_complete_evt (UINT8 *p);
+    #if L2CAP_NON_FLUSHABLE_PB_INCLUDED == TRUE
+static void btu_hcif_enhanced_flush_complete_evt (void);
+    #endif
+
+    #if (BTM_SSR_INCLUDED == TRUE)
+static void btu_hcif_ssr_evt (UINT8 *p, UINT16 evt_len);
+    #endif /* BTM_SSR_INCLUDED == TRUE */
+
+    #if BLE_INCLUDED == TRUE
+static void btu_ble_ll_conn_complete_evt (UINT8 *p, UINT16 evt_len);
+static void btu_ble_process_adv_pkt (UINT8 *p);
+static void btu_ble_read_remote_feat_evt (UINT8 *p);
+static void btu_ble_ll_conn_param_upd_evt (UINT8 *p, UINT16 evt_len);
+static void btu_ble_proc_ltk_req (UINT8 *p);
+static void btu_hcif_encryption_key_refresh_cmpl_evt (UINT8 *p);
+static void btu_ble_data_length_change_evt (UINT8 *p, UINT16 evt_len);
+#if (BLE_LLT_INCLUDED == TRUE)
+static void btu_ble_rc_param_req_evt(UINT8 *p);
+#endif
+#if (defined BLE_PRIVACY_SPT && BLE_PRIVACY_SPT == TRUE)
+static void btu_ble_proc_enhanced_conn_cmpl (UINT8 *p, UINT16 evt_len);
+#endif
+
+    #endif
+
+/*******************************************************************************
+**
+** Function         btu_hcif_process_event
+**
+** Description      This function is called when an event is received from
+**                  the Host Controller.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btu_hcif_process_event (UNUSED_ATTR UINT8 controller_id, BT_HDR *p_msg)
+{
+    UINT8   *p = (UINT8 *)(p_msg + 1) + p_msg->offset;
+    UINT8   hci_evt_code, hci_evt_len;
+#if BLE_INCLUDED == TRUE
+    UINT8   ble_sub_code;
+#endif
+    STREAM_TO_UINT8  (hci_evt_code, p);
+    STREAM_TO_UINT8  (hci_evt_len, p);
+
+    switch (hci_evt_code)
+    {
+        case HCI_INQUIRY_COMP_EVT:
+            btu_hcif_inquiry_comp_evt (p);
+            break;
+        case HCI_INQUIRY_RESULT_EVT:
+            btu_hcif_inquiry_result_evt (p);
+            break;
+        case HCI_INQUIRY_RSSI_RESULT_EVT:
+            btu_hcif_inquiry_rssi_result_evt (p);
+            break;
+        case HCI_EXTENDED_INQUIRY_RESULT_EVT:
+            btu_hcif_extended_inquiry_result_evt (p);
+            break;
+        case HCI_CONNECTION_COMP_EVT:
+            btu_hcif_connection_comp_evt (p);
+            break;
+        case HCI_CONNECTION_REQUEST_EVT:
+            btu_hcif_connection_request_evt (p);
+            break;
+        case HCI_DISCONNECTION_COMP_EVT:
+            btu_hcif_disconnection_comp_evt (p);
+            break;
+        case HCI_AUTHENTICATION_COMP_EVT:
+            btu_hcif_authentication_comp_evt (p);
+            break;
+        case HCI_RMT_NAME_REQUEST_COMP_EVT:
+            btu_hcif_rmt_name_request_comp_evt (p, hci_evt_len);
+            break;
+        case HCI_ENCRYPTION_CHANGE_EVT:
+            btu_hcif_encryption_change_evt (p);
+            break;
+#if BLE_INCLUDED == TRUE
+        case HCI_ENCRYPTION_KEY_REFRESH_COMP_EVT:
+            btu_hcif_encryption_key_refresh_cmpl_evt(p);
+            break;
+#endif
+        case HCI_READ_RMT_FEATURES_COMP_EVT:
+            btu_hcif_read_rmt_features_comp_evt (p);
+            break;
+        case HCI_READ_RMT_EXT_FEATURES_COMP_EVT:
+            btu_hcif_read_rmt_ext_features_comp_evt (p);
+            break;
+        case HCI_READ_RMT_VERSION_COMP_EVT:
+            btu_hcif_read_rmt_version_comp_evt (p);
+            break;
+        case HCI_QOS_SETUP_COMP_EVT:
+            btu_hcif_qos_setup_comp_evt (p);
+            break;
+        case HCI_COMMAND_COMPLETE_EVT:
+            LOG_ERROR(LOG_TAG, "%s should not have received a command complete event. "
+                  "Someone didn't go through the hci transmit_command function.", __func__);
+            break;
+        case HCI_COMMAND_STATUS_EVT:
+            LOG_ERROR(LOG_TAG, "%s should not have received a command status event. "
+                  "Someone didn't go through the hci transmit_command function.", __func__);
+            break;
+        case HCI_HARDWARE_ERROR_EVT:
+            btu_hcif_hardware_error_evt (p);
+            break;
+        case HCI_FLUSH_OCCURED_EVT:
+            btu_hcif_flush_occured_evt ();
+            break;
+        case HCI_ROLE_CHANGE_EVT:
+            btu_hcif_role_change_evt (p);
+            break;
+        case HCI_NUM_COMPL_DATA_PKTS_EVT:
+            btu_hcif_num_compl_data_pkts_evt (p);
+            break;
+        case HCI_MODE_CHANGE_EVT:
+            btu_hcif_mode_change_evt (p);
+            break;
+        case HCI_PIN_CODE_REQUEST_EVT:
+            btu_hcif_pin_code_request_evt (p);
+            break;
+        case HCI_LINK_KEY_REQUEST_EVT:
+            btu_hcif_link_key_request_evt (p);
+            break;
+        case HCI_LINK_KEY_NOTIFICATION_EVT:
+            btu_hcif_link_key_notification_evt (p);
+            break;
+        case HCI_LOOPBACK_COMMAND_EVT:
+            btu_hcif_loopback_command_evt ();
+            break;
+        case HCI_DATA_BUF_OVERFLOW_EVT:
+            btu_hcif_data_buf_overflow_evt ();
+            break;
+        case HCI_MAX_SLOTS_CHANGED_EVT:
+            btu_hcif_max_slots_changed_evt ();
+            break;
+        case HCI_READ_CLOCK_OFF_COMP_EVT:
+            btu_hcif_read_clock_off_comp_evt (p);
+            break;
+        case HCI_CONN_PKT_TYPE_CHANGE_EVT:
+            btu_hcif_conn_pkt_type_change_evt ();
+            break;
+        case HCI_QOS_VIOLATION_EVT:
+            btu_hcif_qos_violation_evt (p);
+            break;
+        case HCI_PAGE_SCAN_MODE_CHANGE_EVT:
+            btu_hcif_page_scan_mode_change_evt ();
+            break;
+        case HCI_PAGE_SCAN_REP_MODE_CHNG_EVT:
+            btu_hcif_page_scan_rep_mode_chng_evt ();
+            break;
+        case HCI_ESCO_CONNECTION_COMP_EVT:
+            btu_hcif_esco_connection_comp_evt (p);
+            break;
+        case HCI_ESCO_CONNECTION_CHANGED_EVT:
+            btu_hcif_esco_connection_chg_evt (p);
+            break;
+#if (BTM_SSR_INCLUDED == TRUE)
+        case HCI_SNIFF_SUB_RATE_EVT:
+            btu_hcif_ssr_evt (p, hci_evt_len);
+            break;
+#endif  /* BTM_SSR_INCLUDED == TRUE */
+        case HCI_RMT_HOST_SUP_FEAT_NOTIFY_EVT:
+            btu_hcif_host_support_evt (p);
+            break;
+        case HCI_IO_CAPABILITY_REQUEST_EVT:
+            btu_hcif_io_cap_request_evt (p);
+            break;
+        case HCI_IO_CAPABILITY_RESPONSE_EVT:
+            btu_hcif_io_cap_response_evt (p);
+            break;
+        case HCI_USER_CONFIRMATION_REQUEST_EVT:
+            btu_hcif_user_conf_request_evt (p);
+            break;
+        case HCI_USER_PASSKEY_REQUEST_EVT:
+            btu_hcif_user_passkey_request_evt (p);
+            break;
+        case HCI_REMOTE_OOB_DATA_REQUEST_EVT:
+            btu_hcif_rem_oob_request_evt (p);
+            break;
+        case HCI_SIMPLE_PAIRING_COMPLETE_EVT:
+            btu_hcif_simple_pair_complete_evt (p);
+            break;
+        case HCI_USER_PASSKEY_NOTIFY_EVT:
+            btu_hcif_user_passkey_notif_evt (p);
+            break;
+        case HCI_KEYPRESS_NOTIFY_EVT:
+            btu_hcif_keypress_notif_evt (p);
+            break;
+#if L2CAP_NON_FLUSHABLE_PB_INCLUDED == TRUE
+        case HCI_ENHANCED_FLUSH_COMPLETE_EVT:
+            btu_hcif_enhanced_flush_complete_evt ();
+            break;
+#endif
+
+#if (BLE_INCLUDED == TRUE)
+        case HCI_BLE_EVENT:
+            STREAM_TO_UINT8  (ble_sub_code, p);
+
+            HCI_TRACE_EVENT("BLE HCI(id=%d) event = 0x%02x)", hci_evt_code,  ble_sub_code);
+
+            switch (ble_sub_code)
+            {
+                case HCI_BLE_ADV_PKT_RPT_EVT: /* result of inquiry */
+                    btu_ble_process_adv_pkt(p);
+                    break;
+                case HCI_BLE_CONN_COMPLETE_EVT:
+                    btu_ble_ll_conn_complete_evt(p, hci_evt_len);
+                    break;
+                case HCI_BLE_LL_CONN_PARAM_UPD_EVT:
+                    btu_ble_ll_conn_param_upd_evt(p, hci_evt_len);
+                    break;
+                case HCI_BLE_READ_REMOTE_FEAT_CMPL_EVT:
+                    btu_ble_read_remote_feat_evt(p);
+                    break;
+                case HCI_BLE_LTK_REQ_EVT: /* received only at slave device */
+                    btu_ble_proc_ltk_req(p);
+                    break;
+#if (defined BLE_PRIVACY_SPT && BLE_PRIVACY_SPT == TRUE)
+                case HCI_BLE_ENHANCED_CONN_COMPLETE_EVT:
+                    btu_ble_proc_enhanced_conn_cmpl(p, hci_evt_len);
+                    break;
+#endif
+#if (BLE_LLT_INCLUDED == TRUE)
+               case HCI_BLE_RC_PARAM_REQ_EVT:
+                    btu_ble_rc_param_req_evt(p);
+                    break;
+#endif
+               case HCI_BLE_DATA_LENGTH_CHANGE_EVT:
+                    btu_ble_data_length_change_evt(p, hci_evt_len);
+                    break;
+            }
+            break;
+#endif /* BLE_INCLUDED */
+        case HCI_VENDOR_SPECIFIC_EVT:
+                btm_vendor_specific_evt (p, hci_evt_len);
+            break;
+#ifdef BLUETOOTH_RTK_API
+        case HCI_SL_PAGE_RESPONSE_TO_EVT:
+        case HCI_CONNLESS_SL_BC_TO_EVT:
+                rtkbt_api_Hook(RTKBT_HOOK_RECEIVE_HCI_VENDOR_EVENT,(void *)p_msg,hci_evt_len);
+        break;
+#endif
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btu_hcif_send_cmd
+**
+** Description      This function is called to send commands to the Host Controller.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btu_hcif_send_cmd (UNUSED_ATTR UINT8 controller_id, BT_HDR *p_buf)
+{
+    if (!p_buf)
+      return;
+
+    uint16_t opcode;
+    uint8_t *stream = p_buf->data + p_buf->offset;
+    void * vsc_callback = NULL;
+
+    STREAM_TO_UINT16(opcode, stream);
+
+    // Eww...horrible hackery here
+    /* If command was a VSC, then extract command_complete callback */
+    if ((opcode & HCI_GRP_VENDOR_SPECIFIC) == HCI_GRP_VENDOR_SPECIFIC
+#if BLE_INCLUDED == TRUE
+        || (opcode == HCI_BLE_RAND)
+        || (opcode == HCI_BLE_ENCRYPT)
+#endif
+       ) {
+        vsc_callback = *((void **)(p_buf + 1));
+    }
+
+    hci_layer_get_interface()->transmit_command(
+      p_buf,
+      btu_hcif_command_complete_evt,
+      btu_hcif_command_status_evt,
+      vsc_callback);
+
+#if (defined(HCILP_INCLUDED) && HCILP_INCLUDED == TRUE)
+    btu_check_bt_sleep ();
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         btu_hcif_inquiry_comp_evt
+**
+** Description      Process event HCI_INQUIRY_COMP_EVT
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btu_hcif_inquiry_comp_evt (UINT8 *p)
+{
+    UINT8   status;
+
+    STREAM_TO_UINT8    (status, p);
+
+    /* Tell inquiry processing that we are done */
+    btm_process_inq_complete(status, BTM_BR_INQUIRY_MASK);
+}
+
+/*******************************************************************************
+**
+** Function         btu_hcif_inquiry_result_evt
+**
+** Description      Process event HCI_INQUIRY_RESULT_EVT
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btu_hcif_inquiry_result_evt (UINT8 *p)
+{
+    /* Store results in the cache */
+    btm_process_inq_results (p, BTM_INQ_RESULT_STANDARD);
+}
+
+/*******************************************************************************
+**
+** Function         btu_hcif_inquiry_rssi_result_evt
+**
+** Description      Process event HCI_INQUIRY_RSSI_RESULT_EVT
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btu_hcif_inquiry_rssi_result_evt (UINT8 *p)
+{
+    /* Store results in the cache */
+    btm_process_inq_results (p, BTM_INQ_RESULT_WITH_RSSI);
+}
+
+/*******************************************************************************
+**
+** Function         btu_hcif_extended_inquiry_result_evt
+**
+** Description      Process event HCI_EXTENDED_INQUIRY_RESULT_EVT
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btu_hcif_extended_inquiry_result_evt (UINT8 *p)
+{
+    /* Store results in the cache */
+    btm_process_inq_results (p, BTM_INQ_RESULT_EXTENDED);
+}
+
+/*******************************************************************************
+**
+** Function         btu_hcif_connection_comp_evt
+**
+** Description      Process event HCI_CONNECTION_COMP_EVT
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btu_hcif_connection_comp_evt (UINT8 *p)
+{
+    UINT8       status;
+    UINT16      handle;
+    BD_ADDR     bda;
+    UINT8       link_type;
+    UINT8       enc_mode;
+#if BTM_SCO_INCLUDED == TRUE
+    tBTM_ESCO_DATA  esco_data;
+#endif
+
+    STREAM_TO_UINT8    (status, p);
+    STREAM_TO_UINT16   (handle, p);
+    STREAM_TO_BDADDR   (bda, p);
+    STREAM_TO_UINT8    (link_type, p);
+    STREAM_TO_UINT8    (enc_mode, p);
+
+    handle = HCID_GET_HANDLE (handle);
+
+    if (link_type == HCI_LINK_TYPE_ACL)
+    {
+        btm_sec_connected (bda, handle, status, enc_mode);
+
+        l2c_link_hci_conn_comp (status, handle, bda);
+    }
+#if BTM_SCO_INCLUDED == TRUE
+    else
+    {
+        memset(&esco_data, 0, sizeof(tBTM_ESCO_DATA));
+        /* esco_data.link_type = HCI_LINK_TYPE_SCO; already zero */
+        memcpy (esco_data.bd_addr, bda, BD_ADDR_LEN);
+        btm_sco_connected (status, bda, handle, &esco_data);
+    }
+#endif /* BTM_SCO_INCLUDED */
+}
+
+/*******************************************************************************
+**
+** Function         btu_hcif_connection_request_evt
+**
+** Description      Process event HCI_CONNECTION_REQUEST_EVT
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btu_hcif_connection_request_evt (UINT8 *p)
+{
+    BD_ADDR     bda;
+    DEV_CLASS   dc;
+    UINT8       link_type;
+
+    STREAM_TO_BDADDR   (bda, p);
+    STREAM_TO_DEVCLASS (dc, p);
+    STREAM_TO_UINT8    (link_type, p);
+
+    /* Pass request to security manager to check connect filters before */
+    /* passing request to l2cap */
+    if (link_type == HCI_LINK_TYPE_ACL)
+    {
+        btm_sec_conn_req (bda, dc);
+    }
+#if BTM_SCO_INCLUDED == TRUE
+    else
+    {
+        btm_sco_conn_req (bda, dc, link_type);
+    }
+#endif /* BTM_SCO_INCLUDED */
+}
+
+/*******************************************************************************
+**
+** Function         btu_hcif_disconnection_comp_evt
+**
+** Description      Process event HCI_DISCONNECTION_COMP_EVT
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btu_hcif_disconnection_comp_evt (UINT8 *p)
+{
+    UINT16  handle;
+    UINT8   reason;
+
+    ++p;
+    STREAM_TO_UINT16 (handle, p);
+    STREAM_TO_UINT8  (reason, p);
+
+    handle = HCID_GET_HANDLE (handle);
+
+#if BTM_SCO_INCLUDED == TRUE
+    /* If L2CAP doesn't know about it, send it to SCO */
+    if (!l2c_link_hci_disc_comp (handle, reason))
+        btm_sco_removed (handle, reason);
+#else
+    l2c_link_hci_disc_comp (handle, reason);
+#endif /* BTM_SCO_INCLUDED */
+
+    /* Notify security manager */
+    btm_sec_disconnected (handle, reason);
+}
+
+/*******************************************************************************
+**
+** Function         btu_hcif_authentication_comp_evt
+**
+** Description      Process event HCI_AUTHENTICATION_COMP_EVT
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btu_hcif_authentication_comp_evt (UINT8 *p)
+{
+    UINT8   status;
+    UINT16  handle;
+
+    STREAM_TO_UINT8  (status, p);
+    STREAM_TO_UINT16 (handle, p);
+
+    btm_sec_auth_complete (handle, status);
+}
+
+/*******************************************************************************
+**
+** Function         btu_hcif_rmt_name_request_comp_evt
+**
+** Description      Process event HCI_RMT_NAME_REQUEST_COMP_EVT
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btu_hcif_rmt_name_request_comp_evt (UINT8 *p, UINT16 evt_len)
+{
+    UINT8   status;
+    BD_ADDR bd_addr;
+
+    STREAM_TO_UINT8 (status, p);
+    STREAM_TO_BDADDR (bd_addr, p);
+
+    evt_len -= (1 + BD_ADDR_LEN);
+
+    btm_process_remote_name (bd_addr, p, evt_len, status);
+
+    btm_sec_rmt_name_request_complete (bd_addr, p, status);
+}
+
+/*******************************************************************************
+**
+** Function         btu_hcif_encryption_change_evt
+**
+** Description      Process event HCI_ENCRYPTION_CHANGE_EVT
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btu_hcif_encryption_change_evt (UINT8 *p)
+{
+    UINT8   status;
+    UINT16  handle;
+    UINT8   encr_enable;
+
+    STREAM_TO_UINT8  (status, p);
+    STREAM_TO_UINT16 (handle, p);
+    STREAM_TO_UINT8  (encr_enable, p);
+
+    btm_acl_encrypt_change (handle, status, encr_enable);
+    btm_sec_encrypt_change (handle, status, encr_enable);
+}
+
+/*******************************************************************************
+**
+** Function         btu_hcif_read_rmt_features_comp_evt
+**
+** Description      Process event HCI_READ_RMT_FEATURES_COMP_EVT
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btu_hcif_read_rmt_features_comp_evt (UINT8 *p)
+{
+    btm_read_remote_features_complete(p);
+}
+
+/*******************************************************************************
+**
+** Function         btu_hcif_read_rmt_ext_features_comp_evt
+**
+** Description      Process event HCI_READ_RMT_EXT_FEATURES_COMP_EVT
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btu_hcif_read_rmt_ext_features_comp_evt (UINT8 *p)
+{
+    UINT8 *p_cur = p;
+    UINT8 status;
+    UINT16 handle;
+
+    STREAM_TO_UINT8 (status, p_cur);
+
+    if (status == HCI_SUCCESS)
+        btm_read_remote_ext_features_complete(p);
+    else
+    {
+        STREAM_TO_UINT16 (handle, p_cur);
+        btm_read_remote_ext_features_failed(status, handle);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btu_hcif_read_rmt_version_comp_evt
+**
+** Description      Process event HCI_READ_RMT_VERSION_COMP_EVT
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btu_hcif_read_rmt_version_comp_evt (UINT8 *p)
+{
+    btm_read_remote_version_complete (p);
+}
+
+/*******************************************************************************
+**
+** Function         btu_hcif_qos_setup_comp_evt
+**
+** Description      Process event HCI_QOS_SETUP_COMP_EVT
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btu_hcif_qos_setup_comp_evt (UINT8 *p)
+{
+    UINT8 status;
+    UINT16 handle;
+    FLOW_SPEC flow;
+
+    STREAM_TO_UINT8 (status, p);
+    STREAM_TO_UINT16 (handle, p);
+    STREAM_TO_UINT8 (flow.qos_flags, p);
+    STREAM_TO_UINT8 (flow.service_type, p);
+    STREAM_TO_UINT32 (flow.token_rate, p);
+    STREAM_TO_UINT32 (flow.peak_bandwidth, p);
+    STREAM_TO_UINT32 (flow.latency, p);
+    STREAM_TO_UINT32 (flow.delay_variation, p);
+
+    btm_qos_setup_complete(status, handle, &flow);
+}
+
+/*******************************************************************************
+**
+** Function         btu_hcif_esco_connection_comp_evt
+**
+** Description      Process event HCI_ESCO_CONNECTION_COMP_EVT
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btu_hcif_esco_connection_comp_evt (UINT8 *p)
+{
+#if BTM_SCO_INCLUDED == TRUE
+    tBTM_ESCO_DATA  data;
+    UINT16          handle;
+    BD_ADDR         bda;
+    UINT8           status;
+
+    STREAM_TO_UINT8 (status, p);
+    STREAM_TO_UINT16 (handle, p);
+    STREAM_TO_BDADDR (bda, p);
+
+    STREAM_TO_UINT8 (data.link_type, p);
+    STREAM_TO_UINT8 (data.tx_interval, p);
+    STREAM_TO_UINT8 (data.retrans_window, p);
+    STREAM_TO_UINT16 (data.rx_pkt_len, p);
+    STREAM_TO_UINT16 (data.tx_pkt_len, p);
+    STREAM_TO_UINT8 (data.air_mode, p);
+
+    memcpy (data.bd_addr, bda, BD_ADDR_LEN);
+    btm_sco_connected (status, bda, handle, &data);
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         btu_hcif_esco_connection_chg_evt
+**
+** Description      Process event HCI_ESCO_CONNECTION_CHANGED_EVT
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btu_hcif_esco_connection_chg_evt (UINT8 *p)
+{
+#if BTM_SCO_INCLUDED == TRUE
+    UINT16  handle;
+    UINT16  tx_pkt_len;
+    UINT16  rx_pkt_len;
+    UINT8   status;
+    UINT8   tx_interval;
+    UINT8   retrans_window;
+
+    STREAM_TO_UINT8 (status, p);
+    STREAM_TO_UINT16 (handle, p);
+
+    STREAM_TO_UINT8 (tx_interval, p);
+    STREAM_TO_UINT8 (retrans_window, p);
+    STREAM_TO_UINT16 (rx_pkt_len, p);
+    STREAM_TO_UINT16 (tx_pkt_len, p);
+
+    btm_esco_proc_conn_chg (status, handle, tx_interval, retrans_window,
+                            rx_pkt_len, tx_pkt_len);
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         btu_hcif_hdl_command_complete
+**
+** Description      Handle command complete event
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btu_hcif_hdl_command_complete (UINT16 opcode, UINT8 *p, UINT16 evt_len,
+                                           void *p_cplt_cback)
+{
+    switch (opcode)
+    {
+        case HCI_INQUIRY_CANCEL:
+            /* Tell inquiry processing that we are done */
+            btm_process_cancel_complete(HCI_SUCCESS, BTM_BR_INQUIRY_MASK);
+            break;
+        case HCI_SET_EVENT_FILTER:
+            btm_event_filter_complete (p);
+            break;
+
+        case HCI_DELETE_STORED_LINK_KEY:
+            btm_delete_stored_link_key_complete (p);
+            break;
+
+        case HCI_READ_LOCAL_NAME:
+            btm_read_local_name_complete (p, evt_len);
+            break;
+
+        case HCI_GET_LINK_QUALITY:
+            btm_read_link_quality_complete (p);
+            break;
+
+        case HCI_READ_RSSI:
+            btm_read_rssi_complete (p);
+            break;
+
+        case HCI_READ_TRANSMIT_POWER_LEVEL:
+            btm_read_tx_power_complete(p, FALSE);
+            break;
+
+        case HCI_CREATE_CONNECTION_CANCEL:
+            btm_create_conn_cancel_complete(p);
+            break;
+
+        case HCI_READ_LOCAL_OOB_DATA:
+            btm_read_local_oob_complete(p);
+            break;
+
+        case HCI_READ_INQ_TX_POWER_LEVEL:
+            btm_read_inq_tx_power_complete(p);
+            break;
+
+#if (BLE_INCLUDED == TRUE)
+/* BLE Commands sComplete*/
+        case HCI_BLE_ADD_WHITE_LIST:
+            btm_ble_add_2_white_list_complete(*p);
+            break;
+
+        case HCI_BLE_CLEAR_WHITE_LIST:
+            btm_ble_clear_white_list_complete(p, evt_len);
+            break;
+
+        case HCI_BLE_REMOVE_WHITE_LIST:
+            btm_ble_remove_from_white_list_complete(p, evt_len);
+            break;
+
+        case HCI_BLE_RAND:
+        case HCI_BLE_ENCRYPT:
+            btm_ble_rand_enc_complete (p, opcode, (tBTM_RAND_ENC_CB *)p_cplt_cback);
+            break;
+
+        case HCI_BLE_READ_ADV_CHNL_TX_POWER:
+            btm_read_tx_power_complete(p, TRUE);
+            break;
+
+        case HCI_BLE_WRITE_ADV_ENABLE:
+            btm_ble_write_adv_enable_complete(p);
+            break;
+
+        case HCI_BLE_CREATE_LL_CONN:
+            btm_ble_create_ll_conn_complete(*p);
+            break;
+
+        case HCI_BLE_TRANSMITTER_TEST:
+        case HCI_BLE_RECEIVER_TEST:
+        case HCI_BLE_TEST_END:
+            btm_ble_test_command_complete(p);
+            break;
+
+#if (defined BLE_PRIVACY_SPT && BLE_PRIVACY_SPT == TRUE)
+        case HCI_BLE_ADD_DEV_RESOLVING_LIST:
+            btm_ble_add_resolving_list_entry_complete(p, evt_len);
+            break;
+
+        case HCI_BLE_RM_DEV_RESOLVING_LIST:
+            btm_ble_remove_resolving_list_entry_complete(p, evt_len);
+            break;
+
+        case HCI_BLE_CLEAR_RESOLVING_LIST:
+            btm_ble_clear_resolving_list_complete(p, evt_len);
+            break;
+
+        case HCI_BLE_READ_RESOLVABLE_ADDR_PEER:
+             btm_ble_read_resolving_list_entry_complete(p, evt_len);
+             break;
+
+        case HCI_BLE_READ_RESOLVABLE_ADDR_LOCAL:
+        case HCI_BLE_SET_ADDR_RESOLUTION_ENABLE:
+        case HCI_BLE_SET_RAND_PRIV_ADDR_TIMOUT:
+            break;
+#endif
+#endif /* (BLE_INCLUDED == TRUE) */
+
+        default:
+            if ((opcode & HCI_GRP_VENDOR_SPECIFIC) == HCI_GRP_VENDOR_SPECIFIC)
+                btm_vsc_complete (p, opcode, evt_len, (tBTM_CMPL_CB *)p_cplt_cback);
+            break;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btu_hcif_command_complete_evt
+**
+** Description      Process event HCI_COMMAND_COMPLETE_EVT
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btu_hcif_command_complete_evt_on_task(BT_HDR *event)
+{
+    command_complete_hack_t *hack = (command_complete_hack_t *)&event->data[0];
+
+    command_opcode_t opcode;
+    uint8_t *stream = hack->response->data + hack->response->offset + 3; // 2 to skip the event headers, 1 to skip the command credits
+    STREAM_TO_UINT16(opcode, stream);
+
+    btu_hcif_hdl_command_complete(
+      opcode,
+      stream,
+      hack->response->len - 5, // 3 for the command complete headers, 2 for the event headers
+      hack->context);
+
+    osi_free(hack->response);
+    osi_free(event);
+}
+
+static void btu_hcif_command_complete_evt(BT_HDR *response, void *context)
+{
+    BT_HDR *event = osi_calloc(sizeof(BT_HDR) + sizeof(command_complete_hack_t));
+    command_complete_hack_t *hack = (command_complete_hack_t *)&event->data[0];
+
+    hack->callback = btu_hcif_command_complete_evt_on_task;
+    hack->response = response;
+    hack->context = context;
+
+    event->event = BTU_POST_TO_TASK_NO_GOOD_HORRIBLE_HACK;
+
+    fixed_queue_enqueue(btu_hci_msg_queue, event);
+}
+
+/*******************************************************************************
+**
+** Function         btu_hcif_hdl_command_status
+**
+** Description      Handle a command status event
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btu_hcif_hdl_command_status (UINT16 opcode, UINT8 status, UINT8 *p_cmd,
+                                         void *p_vsc_status_cback)
+{
+    BD_ADDR         bd_addr;
+    UINT16          handle;
+#if BTM_SCO_INCLUDED == TRUE
+    tBTM_ESCO_DATA  esco_data;
+#endif
+
+    switch (opcode)
+    {
+        case HCI_EXIT_SNIFF_MODE:
+        case HCI_EXIT_PARK_MODE:
+#if BTM_SCO_WAKE_PARKED_LINK == TRUE
+            if (status != HCI_SUCCESS)
+            {
+                /* Allow SCO initiation to continue if waiting for change mode event */
+                if (p_cmd != NULL)
+                {
+                    p_cmd++;    /* bypass length field */
+                    STREAM_TO_UINT16 (handle, p_cmd);
+                    btm_sco_chk_pend_unpark (status, handle);
+                }
+            }
+#endif
+            /* Case Falls Through */
+
+        case HCI_HOLD_MODE:
+        case HCI_SNIFF_MODE:
+        case HCI_PARK_MODE:
+            btm_pm_proc_cmd_status(status);
+            break;
+
+        default:
+            /* If command failed to start, we may need to tell BTM */
+            if (status != HCI_SUCCESS)
+            {
+                switch (opcode)
+                {
+                    case HCI_INQUIRY:
+                        /* Tell inquiry processing that we are done */
+                        btm_process_inq_complete(status, BTM_BR_INQUIRY_MASK);
+                        break;
+
+                    case HCI_RMT_NAME_REQUEST:
+                        /* Tell inquiry processing that we are done */
+                        btm_process_remote_name (NULL, NULL, 0, status);
+
+                        btm_sec_rmt_name_request_complete (NULL, NULL, status);
+                        break;
+
+                    case HCI_QOS_SETUP_COMP_EVT:
+                        /* Tell qos setup that we are done */
+                        btm_qos_setup_complete(status,0,NULL);
+                        break;
+
+                    case HCI_SWITCH_ROLE:
+                        /* Tell BTM that the command failed */
+                        /* read bd addr out of stored command */
+                        if (p_cmd != NULL)
+                        {
+                            p_cmd++;
+                            STREAM_TO_BDADDR (bd_addr, p_cmd);
+                            btm_acl_role_changed(status, bd_addr, BTM_ROLE_UNDEFINED);
+                        }
+                        else
+                            btm_acl_role_changed(status, NULL, BTM_ROLE_UNDEFINED);
+                        l2c_link_role_changed (NULL, BTM_ROLE_UNDEFINED, HCI_ERR_COMMAND_DISALLOWED);
+                        break;
+
+                    case HCI_CREATE_CONNECTION:
+                        /* read bd addr out of stored command */
+                        if (p_cmd != NULL)
+                        {
+                            p_cmd++;
+                            STREAM_TO_BDADDR (bd_addr, p_cmd);
+                            btm_sec_connected (bd_addr, HCI_INVALID_HANDLE, status, 0);
+                            l2c_link_hci_conn_comp (status, HCI_INVALID_HANDLE, bd_addr);
+                        }
+                        break;
+
+                    case HCI_READ_RMT_EXT_FEATURES:
+                        if (p_cmd != NULL)
+                        {
+                            p_cmd++; /* skip command length */
+                            STREAM_TO_UINT16 (handle, p_cmd);
+                        }
+                        else
+                            handle = HCI_INVALID_HANDLE;
+
+                        btm_read_remote_ext_features_failed(status, handle);
+                        break;
+
+                    case HCI_AUTHENTICATION_REQUESTED:
+                        /* Device refused to start authentication.  That should be treated as authentication failure. */
+                        btm_sec_auth_complete (BTM_INVALID_HCI_HANDLE, status);
+                        break;
+
+                    case HCI_SET_CONN_ENCRYPTION:
+                        /* Device refused to start encryption.  That should be treated as encryption failure. */
+                        btm_sec_encrypt_change (BTM_INVALID_HCI_HANDLE, status, FALSE);
+                        break;
+
+#if BLE_INCLUDED == TRUE
+                    case HCI_BLE_CREATE_LL_CONN:
+                        btm_ble_create_ll_conn_complete(status);
+                        break;
+#endif
+
+#if BTM_SCO_INCLUDED == TRUE
+                    case HCI_SETUP_ESCO_CONNECTION:
+                        /* read handle out of stored command */
+                        if (p_cmd != NULL)
+                        {
+                            p_cmd++;
+                            STREAM_TO_UINT16 (handle, p_cmd);
+
+                            /* Determine if initial connection failed or is a change of setup */
+                            if (btm_is_sco_active(handle))
+                                btm_esco_proc_conn_chg (status, handle, 0, 0, 0, 0);
+                            else
+                                btm_sco_connected (status, NULL, handle, &esco_data);
+                        }
+                        break;
+#endif
+
+/* This is commented out until an upper layer cares about returning event
+#if L2CAP_NON_FLUSHABLE_PB_INCLUDED == TRUE
+            case HCI_ENHANCED_FLUSH:
+                break;
+#endif
+*/
+                    default:
+                        if ((opcode & HCI_GRP_VENDOR_SPECIFIC) == HCI_GRP_VENDOR_SPECIFIC)
+                            btm_vsc_complete (&status, opcode, 1, (tBTM_CMPL_CB *)p_vsc_status_cback);
+                        break;
+                }
+
+            }
+            else
+            {
+                if ((opcode & HCI_GRP_VENDOR_SPECIFIC) == HCI_GRP_VENDOR_SPECIFIC)
+                    btm_vsc_complete (&status, opcode, 1, (tBTM_CMPL_CB *)p_vsc_status_cback);
+            }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         btu_hcif_command_status_evt
+**
+** Description      Process event HCI_COMMAND_STATUS_EVT
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btu_hcif_command_status_evt_on_task(BT_HDR *event)
+{
+    command_status_hack_t *hack = (command_status_hack_t *)&event->data[0];
+
+    command_opcode_t opcode;
+    uint8_t *stream = hack->command->data + hack->command->offset;
+    STREAM_TO_UINT16(opcode, stream);
+
+    btu_hcif_hdl_command_status(
+      opcode,
+      hack->status,
+      stream,
+      hack->context);
+
+    osi_free(hack->command);
+    osi_free(event);
+}
+
+static void btu_hcif_command_status_evt(uint8_t status, BT_HDR *command, void *context)
+{
+    BT_HDR *event = osi_calloc(sizeof(BT_HDR) + sizeof(command_status_hack_t));
+    command_status_hack_t *hack = (command_status_hack_t *)&event->data[0];
+
+    hack->callback = btu_hcif_command_status_evt_on_task;
+    hack->status = status;
+    hack->command = command;
+    hack->context = context;
+
+    event->event = BTU_POST_TO_TASK_NO_GOOD_HORRIBLE_HACK;
+
+    fixed_queue_enqueue(btu_hci_msg_queue, event);
+}
+
+/*******************************************************************************
+**
+** Function         btu_hcif_hardware_error_evt
+**
+** Description      Process event HCI_HARDWARE_ERROR_EVT
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btu_hcif_hardware_error_evt (UINT8 *p)
+{
+    HCI_TRACE_ERROR("Ctlr H/w error event - code:0x%x", *p);
+
+    /* If anyone wants device status notifications, give him one. */
+    btm_report_device_status (BTM_DEV_STATUS_DOWN);
+
+    /* Reset the controller */
+    if (BTM_IsDeviceUp())
+        BTM_DeviceReset (NULL);
+}
+
+/*******************************************************************************
+**
+** Function         btu_hcif_flush_occured_evt
+**
+** Description      Process event HCI_FLUSH_OCCURED_EVT
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btu_hcif_flush_occured_evt (void)
+{
+}
+
+/*******************************************************************************
+**
+** Function         btu_hcif_role_change_evt
+**
+** Description      Process event HCI_ROLE_CHANGE_EVT
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btu_hcif_role_change_evt (UINT8 *p)
+{
+    UINT8       status;
+    BD_ADDR     bda;
+    UINT8       role;
+
+    STREAM_TO_UINT8 (status, p);
+    STREAM_TO_BDADDR (bda, p);
+    STREAM_TO_UINT8  (role, p);
+
+    l2c_link_role_changed (bda, role, status);
+    btm_acl_role_changed(status, bda, role);
+}
+
+/*******************************************************************************
+**
+** Function         btu_hcif_num_compl_data_pkts_evt
+**
+** Description      Process event HCI_NUM_COMPL_DATA_PKTS_EVT
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btu_hcif_num_compl_data_pkts_evt (UINT8 *p)
+{
+    /* Process for L2CAP and SCO */
+    l2c_link_process_num_completed_pkts (p);
+
+    /* Send on to SCO */
+    /*?? No SCO for now */
+}
+
+/*******************************************************************************
+**
+** Function         btu_hcif_mode_change_evt
+**
+** Description      Process event HCI_MODE_CHANGE_EVT
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btu_hcif_mode_change_evt (UINT8 *p)
+{
+    UINT8       status;
+    UINT16      handle;
+    UINT8       current_mode;
+    UINT16      interval;
+
+    STREAM_TO_UINT8 (status, p);
+
+    STREAM_TO_UINT16 (handle, p);
+    STREAM_TO_UINT8 (current_mode, p);
+    STREAM_TO_UINT16 (interval, p);
+#if BTM_SCO_WAKE_PARKED_LINK == TRUE
+    btm_sco_chk_pend_unpark (status, handle);
+#endif
+    btm_pm_proc_mode_change (status, handle, current_mode, interval);
+
+#if (HID_DEV_INCLUDED == TRUE) && (HID_DEV_PM_INCLUDED == TRUE)
+    hidd_pm_proc_mode_change( status, current_mode, interval ) ;
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         btu_hcif_ssr_evt
+**
+** Description      Process event HCI_SNIFF_SUB_RATE_EVT
+**
+** Returns          void
+**
+*******************************************************************************/
+    #if (BTM_SSR_INCLUDED == TRUE)
+static void btu_hcif_ssr_evt (UINT8 *p, UINT16 evt_len)
+{
+    btm_pm_proc_ssr_evt(p, evt_len);
+}
+    #endif
+
+/*******************************************************************************
+**
+** Function         btu_hcif_pin_code_request_evt
+**
+** Description      Process event HCI_PIN_CODE_REQUEST_EVT
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btu_hcif_pin_code_request_evt (UINT8 *p)
+{
+    BD_ADDR  bda;
+
+    STREAM_TO_BDADDR (bda, p);
+
+    /* Tell L2CAP that there was a PIN code request,  */
+    /* it may need to stretch timeouts                */
+    l2c_pin_code_request (bda);
+
+    btm_sec_pin_code_request (bda);
+}
+
+/*******************************************************************************
+**
+** Function         btu_hcif_link_key_request_evt
+**
+** Description      Process event HCI_LINK_KEY_REQUEST_EVT
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btu_hcif_link_key_request_evt (UINT8 *p)
+{
+    BD_ADDR  bda;
+
+    STREAM_TO_BDADDR (bda, p);
+    btm_sec_link_key_request (bda);
+}
+
+/*******************************************************************************
+**
+** Function         btu_hcif_link_key_notification_evt
+**
+** Description      Process event HCI_LINK_KEY_NOTIFICATION_EVT
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btu_hcif_link_key_notification_evt (UINT8 *p)
+{
+    BD_ADDR  bda;
+    LINK_KEY key;
+    UINT8    key_type;
+
+    STREAM_TO_BDADDR (bda, p);
+    STREAM_TO_ARRAY16 (key, p);
+    STREAM_TO_UINT8 (key_type, p);
+
+    btm_sec_link_key_notification (bda, key, key_type);
+}
+
+/*******************************************************************************
+**
+** Function         btu_hcif_loopback_command_evt
+**
+** Description      Process event HCI_LOOPBACK_COMMAND_EVT
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btu_hcif_loopback_command_evt (void)
+{
+}
+
+/*******************************************************************************
+**
+** Function         btu_hcif_data_buf_overflow_evt
+**
+** Description      Process event HCI_DATA_BUF_OVERFLOW_EVT
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btu_hcif_data_buf_overflow_evt (void)
+{
+}
+
+/*******************************************************************************
+**
+** Function         btu_hcif_max_slots_changed_evt
+**
+** Description      Process event HCI_MAX_SLOTS_CHANGED_EVT
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btu_hcif_max_slots_changed_evt (void)
+{
+}
+
+/*******************************************************************************
+**
+** Function         btu_hcif_read_clock_off_comp_evt
+**
+** Description      Process event HCI_READ_CLOCK_OFF_COMP_EVT
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btu_hcif_read_clock_off_comp_evt (UINT8 *p)
+{
+    UINT8       status;
+    UINT16      handle;
+    UINT16      clock_offset;
+
+    STREAM_TO_UINT8  (status, p);
+
+    /* If failed to get clock offset just drop the result */
+    if (status != HCI_SUCCESS)
+        return;
+
+    STREAM_TO_UINT16 (handle, p);
+    STREAM_TO_UINT16 (clock_offset, p);
+
+    handle = HCID_GET_HANDLE (handle);
+
+    btm_process_clk_off_comp_evt (handle, clock_offset);
+    btm_sec_update_clock_offset (handle, clock_offset);
+}
+
+/*******************************************************************************
+**
+** Function         btu_hcif_conn_pkt_type_change_evt
+**
+** Description      Process event HCI_CONN_PKT_TYPE_CHANGE_EVT
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btu_hcif_conn_pkt_type_change_evt (void)
+{
+}
+
+/*******************************************************************************
+**
+** Function         btu_hcif_qos_violation_evt
+**
+** Description      Process event HCI_QOS_VIOLATION_EVT
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btu_hcif_qos_violation_evt (UINT8 *p)
+{
+    UINT16   handle;
+
+    STREAM_TO_UINT16 (handle, p);
+
+    handle = HCID_GET_HANDLE (handle);
+
+    l2c_link_hci_qos_violation (handle);
+}
+
+/*******************************************************************************
+**
+** Function         btu_hcif_page_scan_mode_change_evt
+**
+** Description      Process event HCI_PAGE_SCAN_MODE_CHANGE_EVT
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btu_hcif_page_scan_mode_change_evt (void)
+{
+}
+
+/*******************************************************************************
+**
+** Function         btu_hcif_page_scan_rep_mode_chng_evt
+**
+** Description      Process event HCI_PAGE_SCAN_REP_MODE_CHNG_EVT
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btu_hcif_page_scan_rep_mode_chng_evt (void)
+{
+}
+
+/**********************************************
+** Simple Pairing Events
+***********************************************/
+
+/*******************************************************************************
+**
+** Function         btu_hcif_host_support_evt
+**
+** Description      Process event HCI_RMT_HOST_SUP_FEAT_NOTIFY_EVT
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btu_hcif_host_support_evt (UINT8 *p)
+{
+    btm_sec_rmt_host_support_feat_evt(p);
+}
+
+/*******************************************************************************
+**
+** Function         btu_hcif_io_cap_request_evt
+**
+** Description      Process event HCI_IO_CAPABILITY_REQUEST_EVT
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btu_hcif_io_cap_request_evt (UINT8 *p)
+{
+    btm_io_capabilities_req(p);
+}
+
+/*******************************************************************************
+**
+** Function         btu_hcif_io_cap_response_evt
+**
+** Description      Process event HCI_IO_CAPABILITY_RESPONSE_EVT
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btu_hcif_io_cap_response_evt (UINT8 *p)
+{
+    btm_io_capabilities_rsp(p);
+}
+
+/*******************************************************************************
+**
+** Function         btu_hcif_user_conf_request_evt
+**
+** Description      Process event HCI_USER_CONFIRMATION_REQUEST_EVT
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btu_hcif_user_conf_request_evt (UINT8 *p)
+{
+    btm_proc_sp_req_evt(BTM_SP_CFM_REQ_EVT, p);
+}
+
+/*******************************************************************************
+**
+** Function         btu_hcif_user_passkey_request_evt
+**
+** Description      Process event HCI_USER_PASSKEY_REQUEST_EVT
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btu_hcif_user_passkey_request_evt (UINT8 *p)
+{
+    btm_proc_sp_req_evt(BTM_SP_KEY_REQ_EVT, p);
+}
+
+/*******************************************************************************
+**
+** Function         btu_hcif_user_passkey_notif_evt
+**
+** Description      Process event HCI_USER_PASSKEY_NOTIFY_EVT
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btu_hcif_user_passkey_notif_evt (UINT8 *p)
+{
+    btm_proc_sp_req_evt(BTM_SP_KEY_NOTIF_EVT, p);
+}
+
+/*******************************************************************************
+**
+** Function         btu_hcif_keypress_notif_evt
+**
+** Description      Process event HCI_KEYPRESS_NOTIFY_EVT
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btu_hcif_keypress_notif_evt (UINT8 *p)
+{
+    btm_keypress_notif_evt(p);
+}
+
+/*******************************************************************************
+**
+** Function         btu_hcif_rem_oob_request_evt
+**
+** Description      Process event HCI_REMOTE_OOB_DATA_REQUEST_EVT
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btu_hcif_rem_oob_request_evt (UINT8 *p)
+{
+    btm_rem_oob_req(p);
+}
+
+/*******************************************************************************
+**
+** Function         btu_hcif_simple_pair_complete_evt
+**
+** Description      Process event HCI_SIMPLE_PAIRING_COMPLETE_EVT
+**
+** Returns          void
+**
+*******************************************************************************/
+static void btu_hcif_simple_pair_complete_evt (UINT8 *p)
+{
+    btm_simple_pair_complete(p);
+}
+
+/*******************************************************************************
+**
+** Function         btu_hcif_enhanced_flush_complete_evt
+**
+** Description      Process event HCI_ENHANCED_FLUSH_COMPLETE_EVT
+**
+** Returns          void
+**
+*******************************************************************************/
+#if L2CAP_NON_FLUSHABLE_PB_INCLUDED == TRUE
+static void btu_hcif_enhanced_flush_complete_evt (void)
+{
+/* This is empty until an upper layer cares about returning event */
+}
+#endif
+/**********************************************
+** End of Simple Pairing Events
+***********************************************/
+
+/**********************************************
+** BLE Events
+***********************************************/
+#if (defined BLE_INCLUDED) && (BLE_INCLUDED == TRUE)
+static void btu_hcif_encryption_key_refresh_cmpl_evt (UINT8 *p)
+{
+    UINT8   status;
+    UINT8   enc_enable = 0;
+    UINT16  handle;
+
+    STREAM_TO_UINT8  (status, p);
+    STREAM_TO_UINT16 (handle, p);
+
+    if (status == HCI_SUCCESS) enc_enable = 1;
+
+    btm_sec_encrypt_change (handle, status, enc_enable);
+}
+
+static void btu_ble_process_adv_pkt (UINT8 *p)
+{
+    HCI_TRACE_EVENT("btu_ble_process_adv_pkt");
+
+    btm_ble_process_adv_pkt(p);
+}
+
+static void btu_ble_ll_conn_complete_evt ( UINT8 *p, UINT16 evt_len)
+{
+    btm_ble_conn_complete(p, evt_len, FALSE);
+}
+#if (defined BLE_PRIVACY_SPT && BLE_PRIVACY_SPT == TRUE)
+static void btu_ble_proc_enhanced_conn_cmpl( UINT8 *p, UINT16 evt_len)
+{
+    btm_ble_conn_complete(p, evt_len, TRUE);
+}
+#endif
+static void btu_ble_ll_conn_param_upd_evt (UINT8 *p, UINT16 evt_len)
+{
+    /* LE connection update has completed successfully as a master. */
+    /* We can enable the update request if the result is a success. */
+    /* extract the HCI handle first */
+    UINT8   status;
+    UINT16  handle;
+
+    STREAM_TO_UINT8  (status, p);
+    STREAM_TO_UINT16 (handle, p);
+    l2cble_process_conn_update_evt(handle, status);
+}
+
+static void btu_ble_read_remote_feat_evt (UINT8 *p)
+{
+    btm_ble_read_remote_features_complete(p);
+}
+
+static void btu_ble_proc_ltk_req (UINT8 *p)
+{
+    UINT16 ediv, handle;
+    UINT8   *pp;
+
+    STREAM_TO_UINT16(handle, p);
+    pp = p + 8;
+    STREAM_TO_UINT16(ediv, pp);
+#if BLE_INCLUDED == TRUE && SMP_INCLUDED == TRUE
+    btm_ble_ltk_request(handle, p, ediv);
+#endif
+    /* This is empty until an upper layer cares about returning event */
+}
+
+static void btu_ble_data_length_change_evt(UINT8 *p, UINT16 evt_len)
+{
+    UINT16 handle;
+    UINT16 tx_data_len;
+    UINT16 rx_data_len;
+
+    if (!controller_get_interface()->supports_ble_packet_extension())
+    {
+        HCI_TRACE_WARNING("%s, request not supported", __FUNCTION__);
+        return;
+    }
+
+    STREAM_TO_UINT16(handle, p);
+    STREAM_TO_UINT16(tx_data_len, p);
+    p += 2; /* Skip the TxTimer */
+    STREAM_TO_UINT16(rx_data_len, p);
+
+    l2cble_process_data_length_change_event(handle, tx_data_len, rx_data_len);
+}
+
+/**********************************************
+** End of BLE Events Handler
+***********************************************/
+#if (defined BLE_LLT_INCLUDED) && (BLE_LLT_INCLUDED == TRUE)
+static void btu_ble_rc_param_req_evt(UINT8 *p)
+{
+    UINT16 handle;
+    UINT16  int_min, int_max, latency, timeout;
+
+    STREAM_TO_UINT16(handle, p);
+    STREAM_TO_UINT16(int_min, p);
+    STREAM_TO_UINT16(int_max, p);
+    STREAM_TO_UINT16(latency, p);
+    STREAM_TO_UINT16(timeout, p);
+
+    l2cble_process_rc_param_request_evt(handle, int_min, int_max, latency, timeout);
+}
+#endif /* BLE_LLT_INCLUDED */
+
+#endif /* BLE_INCLUDED */
+
diff --git a/rtkbt/code/bt/stack/btu/btu_init.c b/rtkbt/code/bt/stack/btu/btu_init.c
new file mode 100755
index 0000000..688ed88
--- /dev/null
+++ b/rtkbt/code/bt/stack/btu/btu_init.c
@@ -0,0 +1,174 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2000-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_task"
+
+#include <assert.h>
+#include <pthread.h>
+#include <string.h>
+
+#include "bt_target.h"
+#include "btm_int.h"
+#include "btu.h"
+#include "device/include/controller.h"
+#include "dyn_mem.h"
+#include "l2c_int.h"
+#include "osi/include/alarm.h"
+#include "osi/include/fixed_queue.h"
+#include "osi/include/hash_functions.h"
+#include "osi/include/hash_map.h"
+#include "osi/include/log.h"
+#include "osi/include/thread.h"
+#include "sdpint.h"
+
+#if (BLE_INCLUDED == TRUE)
+#include "gatt_api.h"
+#include "gatt_int.h"
+#if SMP_INCLUDED == TRUE
+#include "smp_int.h"
+#endif
+#endif
+
+// Increase BTU task thread priority to avoid pre-emption
+// of audio realated tasks.
+#define BTU_TASK_THREAD_PRIORITY -19
+
+extern fixed_queue_t *btif_msg_queue;
+
+// Communication queue from bta thread to bt_workqueue.
+fixed_queue_t *btu_bta_msg_queue;
+
+// Communication queue from hci thread to bt_workqueue.
+extern fixed_queue_t *btu_hci_msg_queue;
+
+// General timer queue.
+fixed_queue_t *btu_general_alarm_queue;
+
+thread_t *bt_workqueue_thread;
+static const char *BT_WORKQUEUE_NAME = "bt_workqueue";
+
+extern void PLATFORM_DisableHciTransport(UINT8 bDisable);
+/*****************************************************************************
+**                          V A R I A B L E S                                *
+******************************************************************************/
+// TODO(cmanton) Move this out of this file
+const BD_ADDR   BT_BD_ANY = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
+
+void btu_task_start_up(void *context);
+void btu_task_shut_down(void *context);
+
+/*****************************************************************************
+**
+** Function         btu_init_core
+**
+** Description      Initialize control block memory for each core component.
+**
+**
+** Returns          void
+**
+******************************************************************************/
+void btu_init_core(void)
+{
+    /* Initialize the mandatory core stack components */
+    btm_init();
+
+    l2c_init();
+
+    sdp_init();
+
+#if BLE_INCLUDED == TRUE
+    gatt_init();
+#if (defined(SMP_INCLUDED) && SMP_INCLUDED == TRUE)
+    SMP_Init();
+#endif
+    btm_ble_init();
+#endif
+}
+
+/*****************************************************************************
+**
+** Function         btu_free_core
+**
+** Description      Releases control block memory for each core component.
+**
+**
+** Returns          void
+**
+******************************************************************************/
+void btu_free_core(void)
+{
+      /* Free the mandatory core stack components */
+      l2c_free();
+
+#if BLE_INCLUDED == TRUE
+      gatt_free();
+#endif
+}
+
+/*****************************************************************************
+**
+** Function         BTU_StartUp
+**
+** Description      Initializes the BTU control block.
+**
+**                  NOTE: Must be called before creating any tasks
+**                      (RPC, BTU, HCIT, APPL, etc.)
+**
+** Returns          void
+**
+******************************************************************************/
+void BTU_StartUp(void)
+{
+    btu_trace_level = HCI_INITIAL_TRACE_LEVEL;
+
+    btu_bta_msg_queue = fixed_queue_new(SIZE_MAX);
+    if (btu_bta_msg_queue == NULL)
+        goto error_exit;
+
+    btu_general_alarm_queue = fixed_queue_new(SIZE_MAX);
+    if (btu_general_alarm_queue == NULL)
+        goto error_exit;
+
+    bt_workqueue_thread = thread_new(BT_WORKQUEUE_NAME);
+    if (bt_workqueue_thread == NULL)
+        goto error_exit;
+
+    thread_set_priority(bt_workqueue_thread, BTU_TASK_THREAD_PRIORITY);
+
+    // Continue startup on bt workqueue thread.
+    thread_post(bt_workqueue_thread, btu_task_start_up, NULL);
+    return;
+
+  error_exit:;
+    LOG_ERROR(LOG_TAG, "%s Unable to allocate resources for bt_workqueue", __func__);
+    BTU_ShutDown();
+}
+
+void BTU_ShutDown(void) {
+  btu_task_shut_down(NULL);
+
+  fixed_queue_free(btu_bta_msg_queue, NULL);
+  btu_bta_msg_queue = NULL;
+
+  fixed_queue_free(btu_general_alarm_queue, NULL);
+  btu_general_alarm_queue = NULL;
+
+  thread_free(bt_workqueue_thread);
+
+  bt_workqueue_thread = NULL;
+}
diff --git a/rtkbt/code/bt/stack/btu/btu_task.c b/rtkbt/code/bt/stack/btu/btu_task.c
new file mode 100755
index 0000000..6c2a7a8
--- /dev/null
+++ b/rtkbt/code/bt/stack/btu/btu_task.c
@@ -0,0 +1,239 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_btu_task"
+
+#include <assert.h>
+#include <pthread.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "bt_target.h"
+#include "bt_trace.h"
+#include "bt_types.h"
+#include "bt_utils.h"
+#include "btcore/include/module.h"
+#include "btif_common.h"
+#include "btm_api.h"
+#include "btm_int.h"
+#include "btu.h"
+#include "gap_int.h"
+#include "bt_common.h"
+#include "hcimsgs.h"
+#include "l2c_int.h"
+#include "osi/include/alarm.h"
+#include "osi/include/fixed_queue.h"
+#include "osi/include/future.h"
+#include "osi/include/hash_map.h"
+#include "osi/include/log.h"
+#include "osi/include/osi.h"
+#include "osi/include/thread.h"
+#include "port_api.h"
+#include "port_ext.h"
+#include "sdpint.h"
+
+#if (defined(BNEP_INCLUDED) && BNEP_INCLUDED == TRUE)
+#include "bnep_int.h"
+#endif
+
+#if (defined(PAN_INCLUDED) && PAN_INCLUDED == TRUE)
+#include "pan_int.h"
+#endif
+
+#if (defined(HID_HOST_INCLUDED) && HID_HOST_INCLUDED == TRUE )
+#include "hidh_int.h"
+#endif
+
+#if (defined(AVDT_INCLUDED) && AVDT_INCLUDED == TRUE)
+#include "avdt_int.h"
+#else
+extern void avdt_rcv_sync_info (BT_HDR *p_buf); /* this is for hci_test */
+#endif
+
+#if (defined(MCA_INCLUDED) && MCA_INCLUDED == TRUE)
+#include "mca_api.h"
+#include "mca_defs.h"
+#include "mca_int.h"
+#endif
+
+#include "bta_sys.h"
+
+#if (BLE_INCLUDED == TRUE)
+#include "gatt_int.h"
+#if (SMP_INCLUDED == TRUE)
+#include "smp_int.h"
+#endif
+#include "btm_ble_int.h"
+#endif
+
+extern void BTE_InitStack(void);
+
+/* Define BTU storage area
+*/
+uint8_t btu_trace_level = HCI_INITIAL_TRACE_LEVEL;
+
+// Communication queue between btu_task and bta.
+extern fixed_queue_t *btu_bta_msg_queue;
+
+// Communication queue between btu_task and hci.
+extern fixed_queue_t *btu_hci_msg_queue;
+
+// General timer queue.
+extern fixed_queue_t *btu_general_alarm_queue;
+
+extern fixed_queue_t *event_queue;
+extern fixed_queue_t *btif_msg_queue;
+
+extern thread_t *bt_workqueue_thread;
+
+static void btu_hci_msg_process(BT_HDR *p_msg);
+
+void btu_hci_msg_ready(fixed_queue_t *queue, UNUSED_ATTR void *context) {
+    BT_HDR *p_msg = (BT_HDR *)fixed_queue_dequeue(queue);
+    btu_hci_msg_process(p_msg);
+}
+
+void btu_bta_msg_ready(fixed_queue_t *queue, UNUSED_ATTR void *context) {
+    BT_HDR *p_msg = (BT_HDR *)fixed_queue_dequeue(queue);
+    bta_sys_event(p_msg);
+}
+
+static void btu_hci_msg_process(BT_HDR *p_msg) {
+    /* Determine the input message type. */
+    switch (p_msg->event & BT_EVT_MASK)
+    {
+        case BTU_POST_TO_TASK_NO_GOOD_HORRIBLE_HACK: // TODO(zachoverflow): remove this
+            ((post_to_task_hack_t *)(&p_msg->data[0]))->callback(p_msg);
+#if (defined(HCILP_INCLUDED) && HCILP_INCLUDED == TRUE)
+            /* If the host receives events which it doesn't responsd to, */
+            /* it should start an idle timer to enter sleep mode.        */
+            btu_check_bt_sleep ();
+#endif
+            break;
+        case BT_EVT_TO_BTU_HCI_ACL:
+            /* All Acl Data goes to L2CAP */
+            l2c_rcv_acl_data (p_msg);
+            break;
+
+        case BT_EVT_TO_BTU_L2C_SEG_XMIT:
+            /* L2CAP segment transmit complete */
+            l2c_link_segments_xmitted (p_msg);
+            break;
+
+        case BT_EVT_TO_BTU_HCI_SCO:
+#if BTM_SCO_INCLUDED == TRUE
+            btm_route_sco_data (p_msg);
+            break;
+#endif
+
+        case BT_EVT_TO_BTU_HCI_EVT:
+            btu_hcif_process_event ((UINT8)(p_msg->event & BT_SUB_EVT_MASK), p_msg);
+            osi_free(p_msg);
+
+#if (defined(HCILP_INCLUDED) && HCILP_INCLUDED == TRUE)
+            /* If host receives events which it doesn't response to, */
+            /* host should start idle timer to enter sleep mode.     */
+            btu_check_bt_sleep ();
+#endif
+            break;
+
+        case BT_EVT_TO_BTU_HCI_CMD:
+            btu_hcif_send_cmd ((UINT8)(p_msg->event & BT_SUB_EVT_MASK), p_msg);
+            break;
+
+        default:
+            osi_free(p_msg);
+            break;
+    }
+}
+
+void btu_task_start_up(UNUSED_ATTR void *context) {
+  BT_TRACE(TRACE_LAYER_BTU, TRACE_TYPE_API,
+      "btu_task pending for preload complete event");
+
+  LOG_INFO(LOG_TAG, "Bluetooth chip preload is complete");
+
+  BT_TRACE(TRACE_LAYER_BTU, TRACE_TYPE_API,
+      "btu_task received preload complete event");
+
+  /* Initialize the mandatory core stack control blocks
+     (BTU, BTM, L2CAP, and SDP)
+   */
+  btu_init_core();
+
+  /* Initialize any optional stack components */
+  BTE_InitStack();
+
+  bta_sys_init();
+
+  /* Initialise platform trace levels at this point as BTE_InitStack() and bta_sys_init()
+   * reset the control blocks and preset the trace level with XXX_INITIAL_TRACE_LEVEL
+   */
+#if ( BT_USE_TRACES==TRUE )
+  module_init(get_module(BTE_LOGMSG_MODULE));
+#endif
+
+  // Inform the bt jni thread initialization is ok.
+  btif_transfer_context(btif_init_ok, 0, NULL, 0, NULL);
+
+  fixed_queue_register_dequeue(btu_bta_msg_queue,
+      thread_get_reactor(bt_workqueue_thread),
+      btu_bta_msg_ready,
+      NULL);
+
+  fixed_queue_register_dequeue(btu_hci_msg_queue,
+      thread_get_reactor(bt_workqueue_thread),
+      btu_hci_msg_ready,
+      NULL);
+
+  alarm_register_processing_queue(btu_general_alarm_queue, bt_workqueue_thread);
+}
+
+void btu_task_shut_down(UNUSED_ATTR void *context) {
+  fixed_queue_unregister_dequeue(btu_bta_msg_queue);
+  fixed_queue_unregister_dequeue(btu_hci_msg_queue);
+  alarm_unregister_processing_queue(btu_general_alarm_queue);
+
+#if ( BT_USE_TRACES==TRUE )
+  module_clean_up(get_module(BTE_LOGMSG_MODULE));
+#endif
+
+  bta_sys_free();
+  btu_free_core();
+}
+
+#if (defined(HCILP_INCLUDED) && HCILP_INCLUDED == TRUE)
+/*******************************************************************************
+**
+** Function         btu_check_bt_sleep
+**
+** Description      This function is called to check if controller can go to sleep.
+**
+** Returns          void
+**
+*******************************************************************************/
+void btu_check_bt_sleep (void)
+{
+    // TODO(zachoverflow) take pending commands into account?
+    if (l2cb.controller_xmit_window == l2cb.num_lm_acl_bufs)
+    {
+        bte_main_lpm_allow_bt_device_sleep();
+    }
+}
+#endif
diff --git a/rtkbt/code/bt/stack/gap/gap_api.c b/rtkbt/code/bt/stack/gap/gap_api.c
new file mode 100755
index 0000000..5518efd
--- /dev/null
+++ b/rtkbt/code/bt/stack/gap/gap_api.c
@@ -0,0 +1,75 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2013 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#include <string.h>
+
+#include "bt_target.h"
+#include "bt_utils.h"
+#include "gap_int.h"
+
+tGAP_CB  gap_cb;
+
+/*******************************************************************************
+**
+** Function         GAP_SetTraceLevel
+**
+** Description      This function sets the trace level for GAP.  If called with
+**                  a value of 0xFF, it simply returns the current trace level.
+**
+** Returns          The new or current trace level
+**
+*******************************************************************************/
+UINT8 GAP_SetTraceLevel (UINT8 new_level)
+{
+    if (new_level != 0xFF)
+        gap_cb.trace_level = new_level;
+
+    return (gap_cb.trace_level);
+}
+
+/*******************************************************************************
+**
+** Function         GAP_Init
+**
+** Description      Initializes the control blocks used by GAP.
+**
+**                  This routine should not be called except once per
+**                      stack invocation.
+**
+** Returns          Nothing
+**
+*******************************************************************************/
+void GAP_Init(void)
+{
+    memset (&gap_cb, 0, sizeof (tGAP_CB));
+
+#if defined(GAP_INITIAL_TRACE_LEVEL)
+    gap_cb.trace_level = GAP_INITIAL_TRACE_LEVEL;
+#else
+    gap_cb.trace_level = BT_TRACE_LEVEL_NONE;    /* No traces */
+#endif
+
+#if GAP_CONN_INCLUDED == TRUE
+    gap_conn_init();
+#endif
+
+#if BLE_INCLUDED == TRUE
+    gap_attr_db_init();
+#endif
+}
+
diff --git a/rtkbt/code/bt/stack/gap/gap_ble.c b/rtkbt/code/bt/stack/gap/gap_ble.c
new file mode 100755
index 0000000..d92665a
--- /dev/null
+++ b/rtkbt/code/bt/stack/gap/gap_ble.c
@@ -0,0 +1,809 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2013 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+#include "bt_target.h"
+
+#if (defined BLE_INCLUDED && BLE_INCLUDED == TRUE)
+
+#include "bt_utils.h"
+#include <string.h>
+#include "gap_int.h"
+#include "gap_api.h"
+#include "gattdefs.h"
+#include "gatt_api.h"
+#include "gatt_int.h"
+#include "btm_int.h"
+#include "hcimsgs.h"
+
+#define GAP_CHAR_ICON_SIZE          2
+#define GAP_CHAR_DEV_NAME_SIZE      248
+#define GAP_MAX_NUM_INC_SVR       0
+#define GAP_MAX_ATTR_NUM          (2 * GAP_MAX_CHAR_NUM + GAP_MAX_NUM_INC_SVR + 1)
+#define GAP_MAX_CHAR_VALUE_SIZE   (30 + GAP_CHAR_DEV_NAME_SIZE)
+
+
+#ifndef GAP_ATTR_DB_SIZE
+#define GAP_ATTR_DB_SIZE      GATT_DB_MEM_SIZE(GAP_MAX_NUM_INC_SVR, GAP_MAX_CHAR_NUM, GAP_MAX_CHAR_VALUE_SIZE)
+#endif
+
+static void gap_ble_s_attr_request_cback (UINT16 conn_id, UINT32 trans_id, tGATTS_REQ_TYPE op_code, tGATTS_DATA *p_data);
+
+/* client connection callback */
+static void  gap_ble_c_connect_cback (tGATT_IF gatt_if, BD_ADDR bda, UINT16 conn_id, BOOLEAN connected,
+                                            tGATT_DISCONN_REASON reason, tGATT_TRANSPORT transport);
+static void  gap_ble_c_cmpl_cback (UINT16 conn_id, tGATTC_OPTYPE op, tGATT_STATUS status, tGATT_CL_COMPLETE *p_data);
+
+static tGATT_CBACK gap_cback =
+{
+    gap_ble_c_connect_cback,
+    gap_ble_c_cmpl_cback,
+    NULL,
+    NULL,
+    gap_ble_s_attr_request_cback,
+    NULL,
+    NULL
+};
+
+
+
+/*******************************************************************************
+**
+** Function         gap_find_clcb_by_bd_addr
+**
+** Description      The function searches all LCB with macthing bd address
+**
+** Returns          total number of clcb found.
+**
+*******************************************************************************/
+tGAP_CLCB *gap_find_clcb_by_bd_addr(BD_ADDR bda)
+{
+    UINT8 i_clcb;
+    tGAP_CLCB    *p_clcb = NULL;
+
+    for (i_clcb = 0, p_clcb= gap_cb.clcb; i_clcb < GAP_MAX_CL; i_clcb++, p_clcb++)
+    {
+        if (p_clcb->in_use && !memcmp(p_clcb->bda, bda, BD_ADDR_LEN))
+        {
+            return p_clcb;
+        }
+    }
+
+    return NULL;
+}
+
+/*******************************************************************************
+**
+** Function         gap_ble_find_clcb_by_conn_id
+**
+** Description      The function searches all LCB with macthing connection ID
+**
+** Returns          total number of clcb found.
+**
+*******************************************************************************/
+tGAP_CLCB *gap_ble_find_clcb_by_conn_id(UINT16 conn_id)
+{
+    UINT8 i_clcb;
+    tGAP_CLCB    *p_clcb = NULL;
+
+    for (i_clcb = 0, p_clcb= gap_cb.clcb; i_clcb < GAP_MAX_CL; i_clcb++, p_clcb++)
+    {
+        if (p_clcb->in_use && p_clcb->connected && p_clcb->conn_id == conn_id)
+        {
+            return p_clcb;
+        }
+    }
+
+    return p_clcb;
+}
+
+/*******************************************************************************
+**
+** Function         gap_clcb_alloc
+**
+** Description      The function allocates a GAP  connection link control block
+**
+** Returns           NULL if not found. Otherwise pointer to the connection link block.
+**
+*******************************************************************************/
+tGAP_CLCB *gap_clcb_alloc (BD_ADDR bda)
+{
+    UINT8         i_clcb = 0;
+    tGAP_CLCB    *p_clcb = NULL;
+
+    for (i_clcb = 0, p_clcb= gap_cb.clcb; i_clcb < GAP_MAX_CL; i_clcb++, p_clcb++)
+    {
+        if (!p_clcb->in_use)
+        {
+            fixed_queue_free(p_clcb->pending_req_q, NULL);
+            memset(p_clcb, 0, sizeof(tGAP_CLCB));
+            p_clcb->in_use = TRUE;
+            memcpy (p_clcb->bda, bda, BD_ADDR_LEN);
+            p_clcb->pending_req_q = fixed_queue_new(SIZE_MAX);
+            break;
+        }
+    }
+    return p_clcb;
+}
+
+/*******************************************************************************
+**
+** Function         gap_ble_dealloc_clcb
+**
+** Description      The function clean up the pending request queue in GAP
+**
+** Returns          none
+**
+*******************************************************************************/
+void gap_ble_dealloc_clcb(tGAP_CLCB *p_clcb)
+{
+    tGAP_BLE_REQ    *p_q;
+
+    while ((p_q = (tGAP_BLE_REQ *)fixed_queue_try_dequeue(p_clcb->pending_req_q)) != NULL)
+    {
+         /* send callback to all pending requests if being removed*/
+         if (p_q->p_cback != NULL)
+            (*p_q->p_cback)(FALSE, p_clcb->bda, 0, NULL);
+
+         osi_free(p_q);
+    }
+    fixed_queue_free(p_clcb->pending_req_q, NULL);
+
+    memset(p_clcb, 0, sizeof(tGAP_CLCB));
+}
+
+/*******************************************************************************
+**
+** Function         gap_ble_enqueue_request
+**
+** Description      The function enqueue a GAP client request
+**
+** Returns           TRUE is successul; FALSE otherwise
+**
+*******************************************************************************/
+BOOLEAN gap_ble_enqueue_request (tGAP_CLCB *p_clcb, UINT16 uuid, tGAP_BLE_CMPL_CBACK *p_cback)
+{
+    tGAP_BLE_REQ *p_q = (tGAP_BLE_REQ *)osi_malloc(sizeof(tGAP_BLE_REQ));
+
+    p_q->p_cback = p_cback;
+    p_q->uuid = uuid;
+    fixed_queue_enqueue(p_clcb->pending_req_q, p_q);
+
+    return TRUE;
+}
+
+/*******************************************************************************
+**
+** Function         gap_ble_dequeue_request
+**
+** Description      The function dequeue a GAP client request if any
+**
+** Returns           TRUE is successul; FALSE otherwise
+**
+*******************************************************************************/
+BOOLEAN gap_ble_dequeue_request (tGAP_CLCB *p_clcb, UINT16 * p_uuid, tGAP_BLE_CMPL_CBACK **p_cback)
+{
+    tGAP_BLE_REQ *p_q = (tGAP_BLE_REQ *)fixed_queue_try_dequeue(p_clcb->pending_req_q);;
+
+    if (p_q != NULL)
+    {
+        *p_cback    = p_q->p_cback;
+        *p_uuid     = p_q->uuid;
+        osi_free(p_q);
+        return TRUE;
+    }
+
+    return FALSE;
+}
+
+/*******************************************************************************
+**   GAP Attributes Database Request callback
+*******************************************************************************/
+tGATT_STATUS gap_read_attr_value (UINT16 handle, tGATT_VALUE *p_value, BOOLEAN is_long)
+{
+    tGAP_ATTR   *p_db_attr = gap_cb.gatt_attr;
+    UINT8       *p = p_value->value, i;
+    UINT16      offset = p_value->offset;
+    UINT8       *p_dev_name = NULL;
+
+    for (i = 0; i < GAP_MAX_CHAR_NUM; i ++, p_db_attr ++)
+    {
+        if (handle == p_db_attr->handle)
+        {
+            if (p_db_attr->uuid != GATT_UUID_GAP_DEVICE_NAME &&
+                is_long == TRUE)
+                return GATT_NOT_LONG;
+
+            switch (p_db_attr->uuid)
+            {
+                case GATT_UUID_GAP_DEVICE_NAME:
+                    BTM_ReadLocalDeviceName((char **)&p_dev_name);
+                    if (strlen ((char *)p_dev_name) > GATT_MAX_ATTR_LEN)
+                        p_value->len = GATT_MAX_ATTR_LEN;
+                    else
+                        p_value->len = (UINT16)strlen ((char *)p_dev_name);
+
+                    if (offset > p_value->len)
+                        return GATT_INVALID_OFFSET;
+                    else
+                    {
+                        p_value->len -= offset;
+                        p_dev_name += offset;
+                        ARRAY_TO_STREAM(p, p_dev_name, p_value->len);
+                        GAP_TRACE_EVENT("GATT_UUID_GAP_DEVICE_NAME len=0x%04x", p_value->len);
+                    }
+                    break;
+
+                case GATT_UUID_GAP_ICON:
+                    UINT16_TO_STREAM(p, p_db_attr->attr_value.icon);
+                    p_value->len = 2;
+                    break;
+
+                case GATT_UUID_GAP_PREF_CONN_PARAM:
+                    UINT16_TO_STREAM(p, p_db_attr->attr_value.conn_param.int_min); /* int_min */
+                    UINT16_TO_STREAM(p, p_db_attr->attr_value.conn_param.int_max); /* int_max */
+                    UINT16_TO_STREAM(p, p_db_attr->attr_value.conn_param.latency); /* latency */
+                    UINT16_TO_STREAM(p, p_db_attr->attr_value.conn_param.sp_tout);  /* sp_tout */
+                    p_value->len =8;
+                    break;
+
+                /* address resolution */
+                case GATT_UUID_GAP_CENTRAL_ADDR_RESOL:
+                    UINT8_TO_STREAM(p, p_db_attr->attr_value.addr_resolution);
+                    p_value->len =1;
+                    break;
+            }
+            return GATT_SUCCESS;
+        }
+    }
+    return GATT_NOT_FOUND;
+}
+
+/*******************************************************************************
+**   GAP Attributes Database Read/Read Blob Request process
+*******************************************************************************/
+tGATT_STATUS gap_proc_read (tGATTS_REQ_TYPE type, tGATT_READ_REQ *p_data, tGATTS_RSP *p_rsp)
+{
+    tGATT_STATUS    status = GATT_NO_RESOURCES;
+    UNUSED(type);
+
+    if (p_data->is_long)
+        p_rsp->attr_value.offset = p_data->offset;
+
+    p_rsp->attr_value.handle = p_data->handle;
+
+    status = gap_read_attr_value(p_data->handle, &p_rsp->attr_value, p_data->is_long);
+
+    return status;
+}
+
+/******************************************************************************
+**
+** Function         gap_proc_write_req
+**
+** Description      GAP ATT server process a write request.
+**
+** Returns          void.
+**
+*******************************************************************************/
+UINT8 gap_proc_write_req( tGATTS_REQ_TYPE type, tGATT_WRITE_REQ *p_data)
+{
+    tGAP_ATTR   *p_db_attr = gap_cb.gatt_attr;
+    UINT8   i;
+    UNUSED(type);
+
+    for (i = 0; i < GAP_MAX_CHAR_NUM; i ++, p_db_attr ++)
+    {
+        if (p_data-> handle == p_db_attr->handle)
+        {
+                return GATT_WRITE_NOT_PERMIT;
+        }
+    }
+    return GATT_NOT_FOUND;
+
+}
+
+/******************************************************************************
+**
+** Function         gap_ble_s_attr_request_cback
+**
+** Description      GAP ATT server attribute access request callback.
+**
+** Returns          void.
+**
+*******************************************************************************/
+void gap_ble_s_attr_request_cback (UINT16 conn_id, UINT32 trans_id,
+                                   tGATTS_REQ_TYPE type, tGATTS_DATA *p_data)
+{
+    UINT8       status = GATT_INVALID_PDU;
+    tGATTS_RSP  rsp_msg;
+    BOOLEAN     ignore = FALSE;
+
+    GAP_TRACE_EVENT("gap_ble_s_attr_request_cback : recv type (0x%02x)", type);
+
+    memset(&rsp_msg, 0, sizeof(tGATTS_RSP));
+
+    switch (type)
+    {
+        case GATTS_REQ_TYPE_READ:
+            status = gap_proc_read(type, &p_data->read_req, &rsp_msg);
+            break;
+
+        case GATTS_REQ_TYPE_WRITE:
+            if (!p_data->write_req.need_rsp)
+                ignore = TRUE;
+
+            status = gap_proc_write_req(type, &p_data->write_req);
+            break;
+
+        case GATTS_REQ_TYPE_WRITE_EXEC:
+            ignore = TRUE;
+            GAP_TRACE_EVENT("Ignore GATTS_REQ_TYPE_WRITE_EXEC"  );
+            break;
+
+        case GATTS_REQ_TYPE_MTU:
+            GAP_TRACE_EVENT("Get MTU exchange new mtu size: %d", p_data->mtu);
+            ignore = TRUE;
+            break;
+
+        default:
+            GAP_TRACE_EVENT("Unknown/unexpected LE GAP ATT request: 0x%02x", type);
+            break;
+    }
+
+    if (!ignore)
+        GATTS_SendRsp (conn_id, trans_id, status, &rsp_msg);
+}
+
+/*******************************************************************************
+**
+** Function         btm_ble_att_db_init
+**
+** Description      GAP ATT database initalization.
+**
+** Returns          void.
+**
+*******************************************************************************/
+void gap_attr_db_init(void)
+{
+    tBT_UUID        app_uuid = {LEN_UUID_128,{0}};
+    tBT_UUID        uuid     = {LEN_UUID_16,{UUID_SERVCLASS_GAP_SERVER}};
+    UINT16          service_handle;
+    tGAP_ATTR       *p_db_attr = &gap_cb.gatt_attr[0];
+    tGATT_STATUS    status;
+
+    /* Fill our internal UUID with a fixed pattern 0x82 */
+    memset (&app_uuid.uu.uuid128, 0x82, LEN_UUID_128);
+    memset(gap_cb.gatt_attr, 0, sizeof(tGAP_ATTR) *GAP_MAX_CHAR_NUM);
+
+    gap_cb.gatt_if = GATT_Register(&app_uuid, &gap_cback);
+
+    GATT_StartIf(gap_cb.gatt_if);
+
+    /* Create a GAP service */
+    service_handle = GATTS_CreateService (gap_cb.gatt_if, &uuid, 0, GAP_MAX_ATTR_NUM, TRUE);
+
+    GAP_TRACE_EVENT ("gap_attr_db_init service_handle = %d", service_handle);
+
+    /* add Device Name Characteristic
+    */
+    uuid.len = LEN_UUID_16;
+    uuid.uu.uuid16 = p_db_attr->uuid = GATT_UUID_GAP_DEVICE_NAME;
+    p_db_attr->handle = GATTS_AddCharacteristic(service_handle, &uuid, GATT_PERM_READ, GATT_CHAR_PROP_BIT_READ);
+    p_db_attr ++;
+
+    /* add Icon characteristic
+    */
+    uuid.uu.uuid16   = p_db_attr->uuid = GATT_UUID_GAP_ICON;
+    p_db_attr->handle = GATTS_AddCharacteristic(service_handle,
+                                                &uuid,
+                                                GATT_PERM_READ,
+                                                GATT_CHAR_PROP_BIT_READ);
+    p_db_attr ++;
+
+#if BTM_PERIPHERAL_ENABLED == TRUE       /* Only needed for peripheral testing */
+    /* add preferred connection parameter characteristic
+    */
+    uuid.uu.uuid16 = p_db_attr->uuid = GATT_UUID_GAP_PREF_CONN_PARAM;
+    p_db_attr->attr_value.conn_param.int_max = GAP_PREFER_CONN_INT_MAX; /* 6 */
+    p_db_attr->attr_value.conn_param.int_min = GAP_PREFER_CONN_INT_MIN; /* 0 */
+    p_db_attr->attr_value.conn_param.latency = GAP_PREFER_CONN_LATENCY; /* 0 */
+    p_db_attr->attr_value.conn_param.sp_tout = GAP_PREFER_CONN_SP_TOUT; /* 2000 */
+    p_db_attr->handle = GATTS_AddCharacteristic(service_handle,
+                                                &uuid,
+                                                GATT_PERM_READ,
+                                                GATT_CHAR_PROP_BIT_READ);
+    p_db_attr ++;
+#endif
+
+    /* add Central address resolution Characteristic */
+    uuid.len = LEN_UUID_16;
+    uuid.uu.uuid16 = p_db_attr->uuid = GATT_UUID_GAP_CENTRAL_ADDR_RESOL;
+    p_db_attr->handle = GATTS_AddCharacteristic(service_handle, &uuid,
+                                                GATT_PERM_READ, GATT_CHAR_PROP_BIT_READ);
+    p_db_attr->attr_value.addr_resolution = 0;
+    p_db_attr++;
+
+    /* start service now */
+    memset (&app_uuid.uu.uuid128, 0x81, LEN_UUID_128);
+
+    status = GATTS_StartService(gap_cb.gatt_if, service_handle, GAP_TRANSPORT_SUPPORTED );
+
+    GAP_TRACE_EVENT ("GAP App gatt_if: %d  s_hdl = %d start_status=%d",
+                      gap_cb.gatt_if, service_handle, status);
+
+
+
+}
+
+/*******************************************************************************
+**
+** Function         GAP_BleAttrDBUpdate
+**
+** Description      GAP ATT database update.
+**
+** Returns          void.
+**
+*******************************************************************************/
+void GAP_BleAttrDBUpdate(UINT16 attr_uuid, tGAP_BLE_ATTR_VALUE *p_value)
+{
+    tGAP_ATTR  *p_db_attr = gap_cb.gatt_attr;
+    UINT8       i = 0;
+
+    GAP_TRACE_EVENT("GAP_BleAttrDBUpdate attr_uuid=0x%04x", attr_uuid);
+
+    for (i = 0; i < GAP_MAX_CHAR_NUM; i ++, p_db_attr ++)
+    {
+        if (p_db_attr->uuid == attr_uuid)
+        {
+            GAP_TRACE_EVENT("Found attr_uuid=0x%04x", attr_uuid);
+
+            switch (attr_uuid)
+            {
+            case GATT_UUID_GAP_ICON:
+                p_db_attr->attr_value.icon  =  p_value->icon;
+                break;
+
+            case GATT_UUID_GAP_PREF_CONN_PARAM:
+                memcpy((void *)&p_db_attr->attr_value.conn_param,
+                       (const void *)&p_value->conn_param, sizeof(tGAP_BLE_PREF_PARAM));
+                break;
+
+            case GATT_UUID_GAP_DEVICE_NAME:
+                BTM_SetLocalDeviceName((char *)p_value->p_dev_name);
+                break;
+
+            case GATT_UUID_GAP_CENTRAL_ADDR_RESOL:
+                p_db_attr->attr_value.addr_resolution = p_value->addr_resolution;
+                break;
+
+            }
+            break;
+        }
+    }
+
+    return;
+}
+
+/*******************************************************************************
+**
+** Function         gap_ble_send_cl_read_request
+**
+** Description      utility function to send a read request for a GAP charactersitic
+**
+** Returns          TRUE if read started, else FALSE if GAP is busy
+**
+*******************************************************************************/
+BOOLEAN gap_ble_send_cl_read_request(tGAP_CLCB *p_clcb)
+{
+    tGATT_READ_PARAM        param;
+    UINT16                  uuid = 0;
+    BOOLEAN                 started = FALSE;
+
+    if (gap_ble_dequeue_request(p_clcb, &uuid, &p_clcb->p_cback))
+    {
+        memset(&param, 0, sizeof(tGATT_READ_PARAM));
+
+        param.service.uuid.len       = LEN_UUID_16;
+        param.service.uuid.uu.uuid16 = uuid;
+        param.service.s_handle       = 1;
+        param.service.e_handle       = 0xFFFF;
+        param.service.auth_req       = 0;
+
+        if (GATTC_Read(p_clcb->conn_id, GATT_READ_BY_TYPE, &param) == GATT_SUCCESS)
+        {
+            p_clcb->cl_op_uuid = uuid;
+            started = TRUE;
+        }
+    }
+
+    return started;
+}
+
+/*******************************************************************************
+**
+** Function         gap_ble_cl_op_cmpl
+**
+** Description      GAP client operation complete callback
+**
+** Returns          void
+**
+*******************************************************************************/
+void gap_ble_cl_op_cmpl(tGAP_CLCB *p_clcb, BOOLEAN status, UINT16 len, UINT8 *p_name)
+{
+    tGAP_BLE_CMPL_CBACK *p_cback = p_clcb->p_cback;
+    UINT16                  op = p_clcb->cl_op_uuid;
+
+    GAP_TRACE_EVENT("gap_ble_cl_op_cmpl status: %d", status);
+
+    p_clcb->cl_op_uuid = 0;
+    p_clcb->p_cback=NULL;
+
+    if (p_cback && op)
+    {
+        GAP_TRACE_EVENT("calling gap_ble_cl_op_cmpl");
+        (* p_cback)(status, p_clcb->bda, len, (char *)p_name);
+    }
+
+    /* if no further activity is requested in callback, drop the link */
+    if (p_clcb->connected)
+    {
+        if (!gap_ble_send_cl_read_request(p_clcb))
+        {
+            GATT_Disconnect(p_clcb->conn_id);
+            gap_ble_dealloc_clcb(p_clcb);
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         gap_ble_c_connect_cback
+**
+** Description      Client connection callback.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void gap_ble_c_connect_cback (tGATT_IF gatt_if, BD_ADDR bda, UINT16 conn_id,
+                                     BOOLEAN connected, tGATT_DISCONN_REASON reason,
+                                     tGATT_TRANSPORT transport)
+{
+    tGAP_CLCB   *p_clcb = gap_find_clcb_by_bd_addr (bda);
+
+    UNUSED(gatt_if);
+    UNUSED(transport);
+
+    if (p_clcb != NULL)
+    {
+        if (connected)
+        {
+            p_clcb->conn_id = conn_id;
+            p_clcb->connected = TRUE;
+            /* start operation is pending */
+            gap_ble_send_cl_read_request(p_clcb);
+        }
+        else
+        {
+            p_clcb->connected = FALSE;
+            gap_ble_cl_op_cmpl(p_clcb, FALSE, 0, NULL);
+            /* clean up clcb */
+            gap_ble_dealloc_clcb(p_clcb);
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         gap_ble_c_cmpl_cback
+**
+** Description      Client operation complete callback.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void gap_ble_c_cmpl_cback (UINT16 conn_id, tGATTC_OPTYPE op, tGATT_STATUS status, tGATT_CL_COMPLETE *p_data)
+
+{
+    tGAP_CLCB   *p_clcb = gap_ble_find_clcb_by_conn_id(conn_id);
+    UINT16      op_type;
+    UINT16      min, max, latency, tout;
+    UINT16      len;
+    UINT8       *pp;
+
+    if (p_clcb == NULL)
+        return;
+
+    op_type = p_clcb->cl_op_uuid;
+
+    GAP_TRACE_EVENT ("gap_ble_c_cmpl_cback() - op_code: 0x%02x  status: 0x%02x  read_type: 0x%04x", op, status, op_type);
+    /* Currently we only issue read commands */
+    if (op != GATTC_OPTYPE_READ)
+        return;
+
+    if (status != GATT_SUCCESS)
+    {
+        gap_ble_cl_op_cmpl(p_clcb, FALSE, 0, NULL);
+        return;
+    }
+
+    pp = p_data->att_value.value;
+
+    switch (op_type)
+    {
+        case GATT_UUID_GAP_PREF_CONN_PARAM:
+            GAP_TRACE_EVENT ("GATT_UUID_GAP_PREF_CONN_PARAM");
+            /* Extract the peripheral preferred connection parameters and save them */
+
+            STREAM_TO_UINT16 (min, pp);
+            STREAM_TO_UINT16 (max, pp);
+            STREAM_TO_UINT16 (latency, pp);
+            STREAM_TO_UINT16 (tout, pp);
+
+            BTM_BleSetPrefConnParams (p_clcb->bda, min, max, latency, tout);
+            /* release the connection here */
+            gap_ble_cl_op_cmpl(p_clcb, TRUE, 0, NULL);
+            break;
+
+        case GATT_UUID_GAP_DEVICE_NAME:
+            GAP_TRACE_EVENT ("GATT_UUID_GAP_DEVICE_NAME");
+            len = (UINT16)strlen((char *)pp);
+            if (len > GAP_CHAR_DEV_NAME_SIZE)
+                len = GAP_CHAR_DEV_NAME_SIZE;
+            gap_ble_cl_op_cmpl(p_clcb, TRUE, len, pp);
+            break;
+
+        case GATT_UUID_GAP_CENTRAL_ADDR_RESOL:
+            gap_ble_cl_op_cmpl(p_clcb, TRUE, 1, pp);
+            break;
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         gap_ble_accept_cl_operation
+**
+** Description      Start a process to read peer address resolution capability
+**
+** Returns          TRUE if request accepted
+**
+*******************************************************************************/
+BOOLEAN gap_ble_accept_cl_operation(BD_ADDR peer_bda, UINT16 uuid, tGAP_BLE_CMPL_CBACK *p_cback)
+{
+    tGAP_CLCB *p_clcb;
+    BOOLEAN started = FALSE;
+
+    if (p_cback == NULL && uuid != GATT_UUID_GAP_PREF_CONN_PARAM)
+        return(started);
+
+    if ((p_clcb = gap_find_clcb_by_bd_addr (peer_bda)) == NULL)
+    {
+        if ((p_clcb = gap_clcb_alloc(peer_bda)) == NULL)
+        {
+            GAP_TRACE_ERROR("gap_ble_accept_cl_operation max connection reached");
+            return started;
+        }
+    }
+
+    GAP_TRACE_EVENT ("%s() - BDA: %08x%04x  cl_op_uuid: 0x%04x",
+                      __FUNCTION__,
+                      (peer_bda[0]<<24)+(peer_bda[1]<<16)+(peer_bda[2]<<8)+peer_bda[3],
+                      (peer_bda[4]<<8)+peer_bda[5], uuid);
+
+    if (GATT_GetConnIdIfConnected(gap_cb.gatt_if, peer_bda, &p_clcb->conn_id, BT_TRANSPORT_LE))
+        p_clcb->connected = TRUE;
+
+    /* hold the link here */
+    if (!GATT_Connect(gap_cb.gatt_if, p_clcb->bda, TRUE, BT_TRANSPORT_LE))
+        return started;
+
+    /* enqueue the request */
+    gap_ble_enqueue_request(p_clcb, uuid, p_cback);
+
+    if (p_clcb->connected && p_clcb->cl_op_uuid == 0)
+        started = gap_ble_send_cl_read_request(p_clcb);
+    else /* wait for connection up or pending operation to finish */
+        started = TRUE;
+
+   return started;
+}
+/*******************************************************************************
+**
+** Function         GAP_BleReadPeerPrefConnParams
+**
+** Description      Start a process to read a connected peripheral's preferred
+**                  connection parameters
+**
+** Returns          TRUE if read started, else FALSE if GAP is busy
+**
+*******************************************************************************/
+BOOLEAN GAP_BleReadPeerPrefConnParams (BD_ADDR peer_bda)
+{
+    return gap_ble_accept_cl_operation (peer_bda, GATT_UUID_GAP_PREF_CONN_PARAM, NULL);
+}
+
+/*******************************************************************************
+**
+** Function         GAP_BleReadPeerDevName
+**
+** Description      Start a process to read a connected peripheral's device name.
+**
+** Returns          TRUE if request accepted
+**
+*******************************************************************************/
+BOOLEAN GAP_BleReadPeerDevName (BD_ADDR peer_bda, tGAP_BLE_CMPL_CBACK *p_cback)
+{
+    return gap_ble_accept_cl_operation (peer_bda, GATT_UUID_GAP_DEVICE_NAME, p_cback);
+}
+
+/*******************************************************************************
+**
+** Function         GAP_BleReadPeerAddressResolutionCap
+**
+** Description      Start a process to read peer address resolution capability
+**
+** Returns          TRUE if request accepted
+**
+*******************************************************************************/
+BOOLEAN GAP_BleReadPeerAddressResolutionCap (BD_ADDR peer_bda, tGAP_BLE_CMPL_CBACK *p_cback)
+{
+    return gap_ble_accept_cl_operation(peer_bda, GATT_UUID_GAP_CENTRAL_ADDR_RESOL, p_cback);
+}
+
+/*******************************************************************************
+**
+** Function         GAP_BleCancelReadPeerDevName
+**
+** Description      Cancel reading a peripheral's device name.
+**
+** Returns          TRUE if request accepted
+**
+*******************************************************************************/
+BOOLEAN GAP_BleCancelReadPeerDevName (BD_ADDR peer_bda)
+{
+    tGAP_CLCB *p_clcb = gap_find_clcb_by_bd_addr (peer_bda);
+
+    GAP_TRACE_EVENT ("GAP_BleCancelReadPeerDevName() - BDA: %08x%04x  cl_op_uuid: 0x%04x",
+                      (peer_bda[0]<<24)+(peer_bda[1]<<16)+(peer_bda[2]<<8)+peer_bda[3],
+                      (peer_bda[4]<<8)+peer_bda[5], (p_clcb == NULL)? 0 : p_clcb->cl_op_uuid);
+
+    if (p_clcb == NULL)
+    {
+        GAP_TRACE_ERROR ("Cannot cancel current op is not get dev name");
+        return FALSE;
+    }
+
+    if (!p_clcb->connected)
+    {
+        if (!GATT_CancelConnect(gap_cb.gatt_if, peer_bda, TRUE))
+        {
+            GAP_TRACE_ERROR ("Cannot cancel where No connection id");
+            return FALSE;
+        }
+    }
+
+    gap_ble_cl_op_cmpl(p_clcb, FALSE, 0, NULL);
+
+    return(TRUE);
+}
+
+#endif  /* BLE_INCLUDED */
+
+
+
+
+
diff --git a/rtkbt/code/bt/stack/gap/gap_conn.c b/rtkbt/code/bt/stack/gap/gap_conn.c
new file mode 100755
index 0000000..1ee2c97
--- /dev/null
+++ b/rtkbt/code/bt/stack/gap/gap_conn.c
@@ -0,0 +1,1260 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2013 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+
+#include "bt_target.h"
+#include "bt_utils.h"
+#include "btu.h"
+#include "gap_int.h"
+#include "l2cdefs.h"
+#include "l2c_int.h"
+#include <string.h>
+#include "osi/include/mutex.h"
+#if GAP_CONN_INCLUDED == TRUE
+#include "btm_int.h"
+
+/********************************************************************************/
+/*              L O C A L    F U N C T I O N     P R O T O T Y P E S            */
+/********************************************************************************/
+static void gap_connect_ind (BD_ADDR  bd_addr, UINT16 l2cap_cid, UINT16 psm, UINT8 l2cap_id);
+static void gap_connect_cfm (UINT16 l2cap_cid, UINT16 result);
+static void gap_config_ind (UINT16 l2cap_cid, tL2CAP_CFG_INFO *p_cfg);
+static void gap_config_cfm (UINT16 l2cap_cid, tL2CAP_CFG_INFO *p_cfg);
+static void gap_disconnect_ind (UINT16 l2cap_cid, BOOLEAN ack_needed);
+static void gap_data_ind (UINT16 l2cap_cid, BT_HDR *p_msg);
+static void gap_congestion_ind (UINT16 lcid, BOOLEAN is_congested);
+static void gap_tx_complete_ind (UINT16 l2cap_cid, UINT16 sdu_sent);
+
+static tGAP_CCB *gap_find_ccb_by_cid (UINT16 cid);
+static tGAP_CCB *gap_find_ccb_by_handle (UINT16 handle);
+static tGAP_CCB *gap_allocate_ccb (void);
+static void      gap_release_ccb (tGAP_CCB *p_ccb);
+static void      gap_checks_con_flags (tGAP_CCB *p_ccb);
+
+/*******************************************************************************
+**
+** Function         gap_conn_init
+**
+** Description      This function is called to initialize GAP connection management
+**
+** Returns          void
+**
+*******************************************************************************/
+void gap_conn_init (void)
+{
+#if AMP_INCLUDED == TRUE
+    gap_cb.conn.reg_info.pAMP_ConnectInd_Cb         = gap_connect_ind;
+    gap_cb.conn.reg_info.pAMP_ConnectCfm_Cb         = gap_connect_cfm;
+    gap_cb.conn.reg_info.pAMP_ConnectPnd_Cb         = NULL;
+    gap_cb.conn.reg_info.pAMP_ConfigInd_Cb          = gap_config_ind;
+    gap_cb.conn.reg_info.pAMP_ConfigCfm_Cb          = gap_config_cfm;
+    gap_cb.conn.reg_info.pAMP_DisconnectInd_Cb      = gap_disconnect_ind;
+    gap_cb.conn.reg_info.pAMP_DisconnectCfm_Cb      = NULL;
+    gap_cb.conn.reg_info.pAMP_QoSViolationInd_Cb    = NULL;
+    gap_cb.conn.reg_info.pAMP_DataInd_Cb            = gap_data_ind;
+    gap_cb.conn.reg_info.pAMP_CongestionStatus_Cb   = gap_congestion_ind;
+    gap_cb.conn.reg_info.pAMP_TxComplete_Cb         = NULL;
+    gap_cb.conn.reg_info.pAMP_MoveInd_Cb            = NULL;
+    gap_cb.conn.reg_info.pAMP_MoveRsp_Cb            = NULL;
+    gap_cb.conn.reg_info.pAMP_MoveCfm_Cb            = NULL; //gap_move_cfm
+    gap_cb.conn.reg_info.pAMP_MoveCfmRsp_Cb         = NULL; //gap_move_cfm_rsp
+
+#else
+    gap_cb.conn.reg_info.pL2CA_ConnectInd_Cb       = gap_connect_ind;
+    gap_cb.conn.reg_info.pL2CA_ConnectCfm_Cb       = gap_connect_cfm;
+    gap_cb.conn.reg_info.pL2CA_ConnectPnd_Cb       = NULL;
+    gap_cb.conn.reg_info.pL2CA_ConfigInd_Cb        = gap_config_ind;
+    gap_cb.conn.reg_info.pL2CA_ConfigCfm_Cb        = gap_config_cfm;
+    gap_cb.conn.reg_info.pL2CA_DisconnectInd_Cb    = gap_disconnect_ind;
+    gap_cb.conn.reg_info.pL2CA_DisconnectCfm_Cb    = NULL;
+    gap_cb.conn.reg_info.pL2CA_QoSViolationInd_Cb  = NULL;
+    gap_cb.conn.reg_info.pL2CA_DataInd_Cb          = gap_data_ind;
+    gap_cb.conn.reg_info.pL2CA_CongestionStatus_Cb = gap_congestion_ind;
+    gap_cb.conn.reg_info.pL2CA_TxComplete_Cb       = gap_tx_complete_ind;
+#endif
+}
+
+
+/*******************************************************************************
+**
+** Function         GAP_ConnOpen
+**
+** Description      This function is called to open an L2CAP connection.
+**
+** Parameters:      is_server   - If TRUE, the connection is not created
+**                                but put into a "listen" mode waiting for
+**                                the remote side to connect.
+**
+**                  service_id  - Unique service ID from
+**                                BTM_SEC_SERVICE_FIRST_EMPTY (6)
+**                                to BTM_SEC_MAX_SERVICE_RECORDS (32)
+**
+**                  p_rem_bda   - Pointer to remote BD Address.
+**                                If a server, and we don't care about the
+**                                remote BD Address, then NULL should be passed.
+**
+**                  psm         - the PSM used for the connection
+**
+**                  p_config    - Optional pointer to configuration structure.
+**                                If NULL, the default GAP configuration will
+**                                be used.
+**
+**                  security    - security flags
+**                  chan_mode_mask - (GAP_FCR_CHAN_OPT_BASIC, GAP_FCR_CHAN_OPT_ERTM,
+**                                    GAP_FCR_CHAN_OPT_STREAM)
+**
+**                  p_cb        - Pointer to callback function for events.
+**
+** Returns          handle of the connection if successful, else GAP_INVALID_HANDLE
+**
+*******************************************************************************/
+UINT16 GAP_ConnOpen (char *p_serv_name, UINT8 service_id, BOOLEAN is_server,
+                     BD_ADDR p_rem_bda, UINT16 psm, tL2CAP_CFG_INFO *p_cfg,
+                     tL2CAP_ERTM_INFO *ertm_info, UINT16 security, UINT8 chan_mode_mask,
+                     tGAP_CONN_CALLBACK *p_cb, tBT_TRANSPORT transport)
+{
+    tGAP_CCB    *p_ccb;
+    UINT16       cid;
+
+    GAP_TRACE_EVENT ("GAP_CONN - Open Request");
+
+    /* Allocate a new CCB. Return if none available. */
+    if ((p_ccb = gap_allocate_ccb()) == NULL)
+        return (GAP_INVALID_HANDLE);
+
+    /* update the transport */
+    p_ccb->transport = transport;
+
+    /* If caller specified a BD address, save it */
+    if (p_rem_bda)
+    {
+        /* the bd addr is not BT_BD_ANY, then a bd address was specified */
+        if (memcmp (p_rem_bda, BT_BD_ANY, BD_ADDR_LEN))
+            p_ccb->rem_addr_specified = TRUE;
+
+        memcpy (&p_ccb->rem_dev_address[0], p_rem_bda, BD_ADDR_LEN);
+    }
+    else if (!is_server)
+    {
+        /* remore addr is not specified and is not a server -> bad */
+        return (GAP_INVALID_HANDLE);
+    }
+
+    /* A client MUST have specified a bd addr to connect with */
+    if (!p_ccb->rem_addr_specified && !is_server)
+    {
+        gap_release_ccb (p_ccb);
+        GAP_TRACE_ERROR ("GAP ERROR: Client must specify a remote BD ADDR to connect to!");
+        return (GAP_INVALID_HANDLE);
+    }
+
+    /* Check if configuration was specified */
+    if (p_cfg)
+        p_ccb->cfg = *p_cfg;
+
+    /* Configure L2CAP COC, if transport is LE */
+    if (transport == BT_TRANSPORT_LE)
+    {
+        p_ccb->local_coc_cfg.credits = L2CAP_LE_DEFAULT_CREDIT;
+        p_ccb->local_coc_cfg.mtu = p_cfg->mtu;
+        p_ccb->local_coc_cfg.mps = L2CAP_LE_DEFAULT_MPS;
+    }
+
+    p_ccb->p_callback     = p_cb;
+
+    /* If originator, use a dynamic PSM */
+#if AMP_INCLUDED == TRUE
+    if (!is_server)
+        gap_cb.conn.reg_info.pAMP_ConnectInd_Cb  = NULL;
+    else
+        gap_cb.conn.reg_info.pAMP_ConnectInd_Cb  = gap_connect_ind;
+#else
+    if (!is_server)
+        gap_cb.conn.reg_info.pL2CA_ConnectInd_Cb = NULL;
+    else
+        gap_cb.conn.reg_info.pL2CA_ConnectInd_Cb = gap_connect_ind;
+#endif
+
+    /* Register the PSM with L2CAP */
+    if (transport == BT_TRANSPORT_BR_EDR)
+    {
+        p_ccb->psm = L2CA_REGISTER (psm, &gap_cb.conn.reg_info,
+                    AMP_AUTOSWITCH_ALLOWED|AMP_USE_AMP_IF_POSSIBLE);
+        if (p_ccb->psm == 0)
+        {
+            GAP_TRACE_ERROR ("%s: Failure registering PSM 0x%04x", __func__, psm);
+            gap_release_ccb (p_ccb);
+            return (GAP_INVALID_HANDLE);
+        }
+    }
+
+    if (transport == BT_TRANSPORT_LE)
+    {
+        p_ccb->psm = L2CA_REGISTER_COC (psm, &gap_cb.conn.reg_info,
+                    AMP_AUTOSWITCH_ALLOWED|AMP_USE_AMP_IF_POSSIBLE);
+        if (p_ccb->psm == 0)
+        {
+            GAP_TRACE_ERROR ("%s: Failure registering PSM 0x%04x", __func__, psm);
+            gap_release_ccb (p_ccb);
+            return (GAP_INVALID_HANDLE);
+        }
+    }
+
+    /* Register with Security Manager for the specific security level */
+    p_ccb->service_id = service_id;
+    if (!BTM_SetSecurityLevel ((UINT8)!is_server, p_serv_name,
+                p_ccb->service_id, security, p_ccb->psm, 0, 0))
+    {
+        GAP_TRACE_ERROR ("GAP_CONN - Security Error");
+        gap_release_ccb (p_ccb);
+        return (GAP_INVALID_HANDLE);
+    }
+
+    /* Fill in eL2CAP parameter data */
+    if( p_ccb->cfg.fcr_present )
+    {
+        if(ertm_info == NULL) {
+            p_ccb->ertm_info.preferred_mode = p_ccb->cfg.fcr.mode;
+            p_ccb->ertm_info.user_rx_buf_size = GAP_DATA_BUF_SIZE;
+            p_ccb->ertm_info.user_tx_buf_size = GAP_DATA_BUF_SIZE;
+            p_ccb->ertm_info.fcr_rx_buf_size = L2CAP_INVALID_ERM_BUF_SIZE;
+            p_ccb->ertm_info.fcr_tx_buf_size = L2CAP_INVALID_ERM_BUF_SIZE;
+        } else {
+            p_ccb->ertm_info = *ertm_info;
+        }
+    }
+
+    /* optional FCR channel modes */
+    if(ertm_info != NULL) {
+        p_ccb->ertm_info.allowed_modes =
+            (chan_mode_mask) ? chan_mode_mask : (UINT8)L2CAP_FCR_CHAN_OPT_BASIC;
+    }
+
+    if (is_server)
+    {
+        p_ccb->con_flags |= GAP_CCB_FLAGS_SEC_DONE; /* assume btm/l2cap would handle it */
+        p_ccb->con_state = GAP_CCB_STATE_LISTENING;
+        return (p_ccb->gap_handle);
+    }
+    else
+    {
+        /* We are the originator of this connection */
+        p_ccb->con_flags = GAP_CCB_FLAGS_IS_ORIG;
+
+        /* Transition to the next appropriate state, waiting for connection confirm. */
+        p_ccb->con_state = GAP_CCB_STATE_CONN_SETUP;
+
+        /* mark security done flag, when security is not required */
+        if ((security & (BTM_SEC_OUT_AUTHORIZE | BTM_SEC_OUT_AUTHENTICATE | BTM_SEC_OUT_ENCRYPT) ) == 0)
+            p_ccb->con_flags |= GAP_CCB_FLAGS_SEC_DONE;
+
+        /* Check if L2CAP started the connection process */
+        if (p_rem_bda && (transport == BT_TRANSPORT_BR_EDR))
+        {
+            cid = L2CA_CONNECT_REQ (p_ccb->psm, p_rem_bda, &p_ccb->ertm_info);
+            if (cid != 0)
+            {
+                p_ccb->connection_id = cid;
+                return (p_ccb->gap_handle);
+            }
+        }
+
+        if (p_rem_bda && (transport == BT_TRANSPORT_LE))
+        {
+            cid = L2CA_CONNECT_COC_REQ (p_ccb->psm, p_rem_bda, &p_ccb->local_coc_cfg);
+            if (cid != 0)
+            {
+                p_ccb->connection_id = cid;
+                return (p_ccb->gap_handle);
+            }
+        }
+
+        gap_release_ccb (p_ccb);
+        return (GAP_INVALID_HANDLE);
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         GAP_ConnClose
+**
+** Description      This function is called to close a connection.
+**
+** Parameters:      handle      - Handle of the connection returned by GAP_ConnOpen
+**
+** Returns          BT_PASS             - closed OK
+**                  GAP_ERR_BAD_HANDLE  - invalid handle
+**
+*******************************************************************************/
+UINT16 GAP_ConnClose (UINT16 gap_handle)
+{
+    tGAP_CCB    *p_ccb = gap_find_ccb_by_handle (gap_handle);
+
+    GAP_TRACE_EVENT ("GAP_CONN - close  handle: 0x%x", gap_handle);
+
+    if (p_ccb)
+    {
+        /* Check if we have a connection ID */
+        if (p_ccb->con_state != GAP_CCB_STATE_LISTENING)
+            L2CA_DISCONNECT_REQ (p_ccb->connection_id);
+
+        gap_release_ccb (p_ccb);
+
+        return (BT_PASS);
+    }
+
+    return (GAP_ERR_BAD_HANDLE);
+}
+
+
+
+/*******************************************************************************
+**
+** Function         GAP_ConnReadData
+**
+** Description      Normally not GKI aware application will call this function
+**                  after receiving GAP_EVT_RXDATA event.
+**
+** Parameters:      handle      - Handle of the connection returned in the Open
+**                  p_data      - Data area
+**                  max_len     - Byte count requested
+**                  p_len       - Byte count received
+**
+** Returns          BT_PASS             - data read
+**                  GAP_ERR_BAD_HANDLE  - invalid handle
+**                  GAP_NO_DATA_AVAIL   - no data available
+**
+*******************************************************************************/
+UINT16 GAP_ConnReadData (UINT16 gap_handle, UINT8 *p_data, UINT16 max_len, UINT16 *p_len)
+{
+    tGAP_CCB    *p_ccb = gap_find_ccb_by_handle (gap_handle);
+    UINT16      copy_len;
+
+    if (!p_ccb)
+        return (GAP_ERR_BAD_HANDLE);
+
+    *p_len = 0;
+
+    if (fixed_queue_is_empty(p_ccb->rx_queue))
+        return (GAP_NO_DATA_AVAIL);
+
+    mutex_global_lock();
+
+    while (max_len)
+    {
+        BT_HDR *p_buf = fixed_queue_try_peek_first(p_ccb->rx_queue);
+        if (p_buf == NULL)
+            break;
+
+        copy_len = (p_buf->len > max_len)?max_len:p_buf->len;
+        max_len -= copy_len;
+        *p_len  += copy_len;
+        if (p_data)
+        {
+            memcpy (p_data, (UINT8 *)(p_buf + 1) + p_buf->offset, copy_len);
+            p_data += copy_len;
+        }
+
+        if (p_buf->len > copy_len)
+        {
+            p_buf->offset += copy_len;
+            p_buf->len    -= copy_len;
+            break;
+        }
+        osi_free(fixed_queue_try_dequeue(p_ccb->rx_queue));
+    }
+
+    p_ccb->rx_queue_size -= *p_len;
+
+    mutex_global_unlock();
+
+    GAP_TRACE_EVENT ("GAP_ConnReadData - rx_queue_size left=%d, *p_len=%d",
+                                       p_ccb->rx_queue_size, *p_len);
+
+    return (BT_PASS);
+}
+
+/*******************************************************************************
+**
+** Function         GAP_GetRxQueueCnt
+**
+** Description      This function return number of bytes on the rx queue.
+**
+** Parameters:      handle     - Handle returned in the GAP_ConnOpen
+**                  p_rx_queue_count - Pointer to return queue count in.
+**
+**
+*******************************************************************************/
+int GAP_GetRxQueueCnt (UINT16 handle, UINT32 *p_rx_queue_count)
+{
+    tGAP_CCB    *p_ccb;
+    int         rc = BT_PASS;
+
+    /* Check that handle is valid */
+    if (handle < GAP_MAX_CONNECTIONS)
+    {
+        p_ccb = &gap_cb.conn.ccb_pool[handle];
+
+        if (p_ccb->con_state == GAP_CCB_STATE_CONNECTED)
+        {
+            *p_rx_queue_count = p_ccb->rx_queue_size;
+        }
+        else
+            rc = GAP_INVALID_HANDLE;
+    }
+    else
+        rc = GAP_INVALID_HANDLE;
+
+    GAP_TRACE_EVENT ("GAP_GetRxQueueCnt - rc = 0x%04x, rx_queue_count=%d",
+                                       rc , *p_rx_queue_count);
+
+    return (rc);
+}
+
+/*******************************************************************************
+**
+** Function         GAP_ConnBTRead
+**
+** Description      Bluetooth aware applications will call this function after receiving
+**                  GAP_EVT_RXDATA event.
+**
+** Parameters:      handle      - Handle of the connection returned in the Open
+**                  pp_buf      - pointer to address of buffer with data,
+**
+** Returns          BT_PASS             - data read
+**                  GAP_ERR_BAD_HANDLE  - invalid handle
+**                  GAP_NO_DATA_AVAIL   - no data available
+**
+*******************************************************************************/
+UINT16 GAP_ConnBTRead (UINT16 gap_handle, BT_HDR **pp_buf)
+{
+    tGAP_CCB    *p_ccb = gap_find_ccb_by_handle (gap_handle);
+    BT_HDR      *p_buf;
+
+    if (!p_ccb)
+        return (GAP_ERR_BAD_HANDLE);
+
+    p_buf = (BT_HDR *)fixed_queue_try_dequeue(p_ccb->rx_queue);
+
+    if (p_buf)
+    {
+        *pp_buf = p_buf;
+
+        p_ccb->rx_queue_size -= p_buf->len;
+        return (BT_PASS);
+    }
+    else
+    {
+        *pp_buf = NULL;
+        return (GAP_NO_DATA_AVAIL);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         GAP_ConnWriteData
+**
+** Description      Normally not GKI aware application will call this function
+**                  to send data to the connection.
+**
+** Parameters:      handle      - Handle of the connection returned in the Open
+**                  p_data      - Data area
+**                  max_len     - Byte count requested
+**                  p_len       - Byte count received
+**
+** Returns          BT_PASS                 - data read
+**                  GAP_ERR_BAD_HANDLE      - invalid handle
+**                  GAP_ERR_BAD_STATE       - connection not established
+**                  GAP_CONGESTION          - system is congested
+**
+*******************************************************************************/
+UINT16 GAP_ConnWriteData (UINT16 gap_handle, UINT8 *p_data, UINT16 max_len, UINT16 *p_len)
+{
+    tGAP_CCB    *p_ccb = gap_find_ccb_by_handle (gap_handle);
+    BT_HDR     *p_buf;
+
+    *p_len = 0;
+
+    if (!p_ccb)
+        return (GAP_ERR_BAD_HANDLE);
+
+    if (p_ccb->con_state != GAP_CCB_STATE_CONNECTED)
+        return (GAP_ERR_BAD_STATE);
+
+    while (max_len)
+    {
+        if (p_ccb->cfg.fcr.mode == L2CAP_FCR_ERTM_MODE)
+            p_buf = (BT_HDR *)osi_malloc(L2CAP_FCR_ERTM_BUF_SIZE);
+        else
+            p_buf = (BT_HDR *)osi_malloc(GAP_DATA_BUF_SIZE);
+
+        p_buf->offset = L2CAP_MIN_OFFSET;
+        p_buf->len = (p_ccb->rem_mtu_size < max_len) ? p_ccb->rem_mtu_size : max_len;
+        p_buf->event = BT_EVT_TO_BTU_SP_DATA;
+
+        memcpy ((UINT8 *)(p_buf + 1) + p_buf->offset, p_data, p_buf->len);
+
+        *p_len  += p_buf->len;
+        max_len -= p_buf->len;
+        p_data  += p_buf->len;
+
+        GAP_TRACE_EVENT ("GAP_WriteData %d bytes", p_buf->len);
+
+        fixed_queue_enqueue(p_ccb->tx_queue, p_buf);
+    }
+
+    if (p_ccb->is_congested)
+    {
+        return (BT_PASS);
+    }
+
+    /* Send the buffer through L2CAP */
+#if (GAP_CONN_POST_EVT_INCLUDED == TRUE)
+    gap_send_event (gap_handle);
+#else
+    while ((p_buf = (BT_HDR *)fixed_queue_try_dequeue(p_ccb->tx_queue)) != NULL)
+    {
+        UINT8 status = L2CA_DATA_WRITE (p_ccb->connection_id, p_buf);
+
+        if (status == L2CAP_DW_CONGESTED)
+        {
+            p_ccb->is_congested = TRUE;
+            break;
+        }
+        else if (status != L2CAP_DW_SUCCESS)
+            return (GAP_ERR_BAD_STATE);
+    }
+#endif
+    return (BT_PASS);
+}
+
+
+/*******************************************************************************
+**
+** Function         GAP_ConnReconfig
+**
+** Description      Applications can call this function to reconfigure the connection.
+**
+** Parameters:      handle      - Handle of the connection
+**                  p_cfg       - Pointer to new configuration
+**
+** Returns          BT_PASS                 - config process started
+**                  GAP_ERR_BAD_HANDLE      - invalid handle
+**
+*******************************************************************************/
+UINT16 GAP_ConnReconfig (UINT16 gap_handle, tL2CAP_CFG_INFO *p_cfg)
+{
+    tGAP_CCB    *p_ccb = gap_find_ccb_by_handle (gap_handle);
+
+    if (!p_ccb)
+        return (GAP_ERR_BAD_HANDLE);
+
+    p_ccb->cfg = *p_cfg;
+
+    if (p_ccb->con_state == GAP_CCB_STATE_CONNECTED)
+        L2CA_CONFIG_REQ (p_ccb->connection_id, p_cfg);
+
+    return (BT_PASS);
+}
+
+
+
+/*******************************************************************************
+**
+** Function         GAP_ConnSetIdleTimeout
+**
+** Description      Higher layers call this function to set the idle timeout for
+**                  a connection, or for all future connections. The "idle timeout"
+**                  is the amount of time that a connection can remain up with
+**                  no L2CAP channels on it. A timeout of zero means that the
+**                  connection will be torn down immediately when the last channel
+**                  is removed. A timeout of 0xFFFF means no timeout. Values are
+**                  in seconds.
+**
+** Parameters:      handle      - Handle of the connection
+**                  timeout     - in secs
+**                                0 = immediate disconnect when last channel is removed
+**                                0xFFFF = no idle timeout
+**
+** Returns          BT_PASS                 - config process started
+**                  GAP_ERR_BAD_HANDLE      - invalid handle
+**
+*******************************************************************************/
+UINT16 GAP_ConnSetIdleTimeout (UINT16 gap_handle, UINT16 timeout)
+{
+    tGAP_CCB    *p_ccb;
+
+    if ((p_ccb = gap_find_ccb_by_handle (gap_handle)) == NULL)
+        return (GAP_ERR_BAD_HANDLE);
+
+    if (L2CA_SetIdleTimeout (p_ccb->connection_id, timeout, FALSE))
+        return (BT_PASS);
+    else
+        return (GAP_ERR_BAD_HANDLE);
+}
+
+
+
+/*******************************************************************************
+**
+** Function         GAP_ConnGetRemoteAddr
+**
+** Description      This function is called to get the remote BD address
+**                  of a connection.
+**
+** Parameters:      handle      - Handle of the connection returned by GAP_ConnOpen
+**
+** Returns          BT_PASS             - closed OK
+**                  GAP_ERR_BAD_HANDLE  - invalid handle
+**
+*******************************************************************************/
+UINT8 *GAP_ConnGetRemoteAddr (UINT16 gap_handle)
+{
+    tGAP_CCB    *p_ccb = gap_find_ccb_by_handle (gap_handle);
+
+    GAP_TRACE_EVENT ("GAP_ConnGetRemoteAddr gap_handle = %d", gap_handle);
+
+    if ((p_ccb) && (p_ccb->con_state > GAP_CCB_STATE_LISTENING))
+    {
+        GAP_TRACE_EVENT("GAP_ConnGetRemoteAddr bda :0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x\n", \
+                         p_ccb->rem_dev_address[0],p_ccb->rem_dev_address[1],p_ccb->rem_dev_address[2],
+                         p_ccb->rem_dev_address[3],p_ccb->rem_dev_address[4],p_ccb->rem_dev_address[5]);
+        return (p_ccb->rem_dev_address);
+    }
+    else
+    {
+        GAP_TRACE_EVENT ("GAP_ConnGetRemoteAddr return Error ");
+        return (NULL);
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         GAP_ConnGetRemMtuSize
+**
+** Description      Returns the remote device's MTU size
+**
+** Parameters:      handle      - Handle of the connection
+**
+** Returns          UINT16      - maximum size buffer that can be transmitted to the peer
+**
+*******************************************************************************/
+UINT16 GAP_ConnGetRemMtuSize (UINT16 gap_handle)
+{
+    tGAP_CCB    *p_ccb;
+
+    if ((p_ccb = gap_find_ccb_by_handle (gap_handle)) == NULL)
+        return (0);
+
+    return (p_ccb->rem_mtu_size);
+}
+
+/*******************************************************************************
+**
+** Function         GAP_ConnGetL2CAPCid
+**
+** Description      Returns the L2CAP channel id
+**
+** Parameters:      handle      - Handle of the connection
+**
+** Returns          UINT16      - The L2CAP channel id
+**                  0, if error
+**
+*******************************************************************************/
+UINT16 GAP_ConnGetL2CAPCid (UINT16 gap_handle)
+{
+    tGAP_CCB    *p_ccb;
+
+    if ((p_ccb = gap_find_ccb_by_handle (gap_handle)) == NULL)
+        return (0);
+
+    return (p_ccb->connection_id);
+}
+
+/*******************************************************************************
+**
+** Function         gap_tx_connect_ind
+**
+** Description      Sends out GAP_EVT_TX_EMPTY when transmission has been
+**                  completed.
+**
+** Returns          void
+**
+*******************************************************************************/
+void gap_tx_complete_ind (UINT16 l2cap_cid, UINT16 sdu_sent)
+{
+    tGAP_CCB *p_ccb = gap_find_ccb_by_cid (l2cap_cid);
+    if (p_ccb == NULL)
+        return;
+
+    if ((p_ccb->con_state == GAP_CCB_STATE_CONNECTED) && (sdu_sent == 0xFFFF))
+    {
+        GAP_TRACE_EVENT("%s: GAP_EVT_TX_EMPTY", __func__);
+        p_ccb->p_callback (p_ccb->gap_handle, GAP_EVT_TX_EMPTY);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         gap_connect_ind
+**
+** Description      This function handles an inbound connection indication
+**                  from L2CAP. This is the case where we are acting as a
+**                  server.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void gap_connect_ind (BD_ADDR  bd_addr, UINT16 l2cap_cid, UINT16 psm, UINT8 l2cap_id)
+{
+    UINT16       xx;
+    tGAP_CCB     *p_ccb;
+
+    /* See if we have a CCB listening for the connection */
+    for (xx = 0, p_ccb = gap_cb.conn.ccb_pool; xx < GAP_MAX_CONNECTIONS; xx++, p_ccb++)
+    {
+        if ((p_ccb->con_state == GAP_CCB_STATE_LISTENING)
+         && (p_ccb->psm == psm)
+         && ((p_ccb->rem_addr_specified == FALSE)
+           || (!memcmp (bd_addr, p_ccb->rem_dev_address, BD_ADDR_LEN))))
+            break;
+    }
+
+    if (xx == GAP_MAX_CONNECTIONS)
+    {
+        GAP_TRACE_WARNING("*******");
+        GAP_TRACE_WARNING("WARNING: GAP Conn Indication for Unexpected Bd Addr...Disconnecting");
+        GAP_TRACE_WARNING("*******");
+
+        /* Disconnect because it is an unexpected connection */
+        L2CA_DISCONNECT_REQ (l2cap_cid);
+        return;
+    }
+
+    /* Transition to the next appropriate state, waiting for config setup. */
+    if (p_ccb->transport == BT_TRANSPORT_BR_EDR)
+        p_ccb->con_state = GAP_CCB_STATE_CFG_SETUP;
+
+    /* Save the BD Address and Channel ID. */
+    memcpy (&p_ccb->rem_dev_address[0], bd_addr, BD_ADDR_LEN);
+    p_ccb->connection_id = l2cap_cid;
+
+    /* Send response to the L2CAP layer. */
+    if (p_ccb->transport == BT_TRANSPORT_BR_EDR)
+        L2CA_CONNECT_RSP (bd_addr, l2cap_id, l2cap_cid, L2CAP_CONN_OK, L2CAP_CONN_OK, &p_ccb->ertm_info);
+
+    if (p_ccb->transport == BT_TRANSPORT_LE)
+    {
+        L2CA_CONNECT_COC_RSP (bd_addr, l2cap_id, l2cap_cid, L2CAP_CONN_OK, L2CAP_CONN_OK, &p_ccb->local_coc_cfg);
+
+        /* get the remote coc configuration */
+        L2CA_GET_PEER_COC_CONFIG(l2cap_cid, &p_ccb->peer_coc_cfg);
+        p_ccb->rem_mtu_size = p_ccb->peer_coc_cfg.mtu;
+
+        /* configuration is not required for LE COC */
+        p_ccb->con_flags |= GAP_CCB_FLAGS_HIS_CFG_DONE;
+        p_ccb->con_flags |= GAP_CCB_FLAGS_MY_CFG_DONE;
+        gap_checks_con_flags (p_ccb);
+    }
+
+    GAP_TRACE_EVENT("GAP_CONN - Rcvd L2CAP conn ind, CID: 0x%x", p_ccb->connection_id);
+
+    /* Send a Configuration Request. */
+    if (p_ccb->transport == BT_TRANSPORT_BR_EDR)
+        L2CA_CONFIG_REQ (l2cap_cid, &p_ccb->cfg);
+}
+
+/*******************************************************************************
+**
+** Function         gap_checks_con_flags
+**
+** Description      This function processes the L2CAP configuration indication
+**                  event.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void gap_checks_con_flags (tGAP_CCB    *p_ccb)
+{
+    GAP_TRACE_EVENT ("gap_checks_con_flags conn_flags:0x%x, ", p_ccb->con_flags);
+    /* if all the required con_flags are set, report the OPEN event now */
+    if ((p_ccb->con_flags & GAP_CCB_FLAGS_CONN_DONE) == GAP_CCB_FLAGS_CONN_DONE)
+    {
+        p_ccb->con_state = GAP_CCB_STATE_CONNECTED;
+
+        p_ccb->p_callback (p_ccb->gap_handle, GAP_EVT_CONN_OPENED);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         gap_sec_check_complete
+**
+** Description      The function called when Security Manager finishes
+**                  verification of the service side connection
+**
+** Returns          void
+**
+*******************************************************************************/
+static void gap_sec_check_complete (BD_ADDR bd_addr, tBT_TRANSPORT transport, void *p_ref_data, UINT8 res)
+{
+    tGAP_CCB *p_ccb = (tGAP_CCB *)p_ref_data;
+    UNUSED(bd_addr);
+    UNUSED (transport);
+
+    GAP_TRACE_EVENT ("gap_sec_check_complete conn_state:%d, conn_flags:0x%x, status:%d",
+        p_ccb->con_state, p_ccb->con_flags, res);
+    if (p_ccb->con_state == GAP_CCB_STATE_IDLE)
+        return;
+
+    if (res == BTM_SUCCESS)
+    {
+        p_ccb->con_flags |= GAP_CCB_FLAGS_SEC_DONE;
+        gap_checks_con_flags (p_ccb);
+    }
+    else
+    {
+        /* security failed - disconnect the channel */
+        L2CA_DISCONNECT_REQ (p_ccb->connection_id);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         gap_connect_cfm
+**
+** Description      This function handles the connect confirm events
+**                  from L2CAP. This is the case when we are acting as a
+**                  client and have sent a connect request.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void gap_connect_cfm (UINT16 l2cap_cid, UINT16 result)
+{
+    tGAP_CCB    *p_ccb;
+
+    /* Find CCB based on CID */
+    if ((p_ccb = gap_find_ccb_by_cid (l2cap_cid)) == NULL)
+        return;
+
+    /* initiate security process, if needed */
+    if ( (p_ccb->con_flags & GAP_CCB_FLAGS_SEC_DONE) == 0 && p_ccb->transport != BT_TRANSPORT_LE)
+    {
+        btm_sec_mx_access_request (p_ccb->rem_dev_address, p_ccb->psm, TRUE,
+                                   0, 0, &gap_sec_check_complete, p_ccb);
+    }
+
+    /* If the connection response contains success status, then */
+    /* Transition to the next state and startup the timer.      */
+    if ((result == L2CAP_CONN_OK) && (p_ccb->con_state == GAP_CCB_STATE_CONN_SETUP))
+    {
+        if (p_ccb->transport == BT_TRANSPORT_BR_EDR)
+        {
+            p_ccb->con_state = GAP_CCB_STATE_CFG_SETUP;
+
+            /* Send a Configuration Request. */
+            L2CA_CONFIG_REQ (l2cap_cid, &p_ccb->cfg);
+        }
+
+        if (p_ccb->transport == BT_TRANSPORT_LE)
+        {
+            /* get the remote coc configuration */
+            L2CA_GET_PEER_COC_CONFIG(l2cap_cid, &p_ccb->peer_coc_cfg);
+            p_ccb->rem_mtu_size = p_ccb->peer_coc_cfg.mtu;
+
+            /* configuration is not required for LE COC */
+            p_ccb->con_flags |= GAP_CCB_FLAGS_HIS_CFG_DONE;
+            p_ccb->con_flags |= GAP_CCB_FLAGS_MY_CFG_DONE;
+            p_ccb->con_flags |= GAP_CCB_FLAGS_SEC_DONE;
+            gap_checks_con_flags (p_ccb);
+        }
+    }
+    else
+    {
+        /* Tell the user if he has a callback */
+        if (p_ccb->p_callback)
+            (*p_ccb->p_callback) (p_ccb->gap_handle, GAP_EVT_CONN_CLOSED);
+
+        gap_release_ccb (p_ccb);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         gap_config_ind
+**
+** Description      This function processes the L2CAP configuration indication
+**                  event.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void gap_config_ind (UINT16 l2cap_cid, tL2CAP_CFG_INFO *p_cfg)
+{
+    tGAP_CCB    *p_ccb;
+    UINT16      local_mtu_size;
+
+    /* Find CCB based on CID */
+    if ((p_ccb = gap_find_ccb_by_cid (l2cap_cid)) == NULL)
+        return;
+
+    /* Remember the remote MTU size */
+
+    if (p_ccb->cfg.fcr.mode == L2CAP_FCR_ERTM_MODE)
+    {
+        local_mtu_size = p_ccb->ertm_info.user_tx_buf_size
+                       - sizeof(BT_HDR) - L2CAP_MIN_OFFSET;
+    }
+    else
+        local_mtu_size = L2CAP_MTU_SIZE;
+
+    if ((!p_cfg->mtu_present)||(p_cfg->mtu > local_mtu_size))
+    {
+        p_ccb->rem_mtu_size = local_mtu_size;
+    }
+    else
+        p_ccb->rem_mtu_size = p_cfg->mtu;
+
+    /* For now, always accept configuration from the other side */
+    p_cfg->flush_to_present = FALSE;
+    p_cfg->mtu_present      = FALSE;
+    p_cfg->result           = L2CAP_CFG_OK;
+    p_cfg->fcs_present      = FALSE;
+
+    L2CA_CONFIG_RSP (l2cap_cid, p_cfg);
+
+    p_ccb->con_flags |= GAP_CCB_FLAGS_HIS_CFG_DONE;
+
+    gap_checks_con_flags (p_ccb);
+}
+
+
+/*******************************************************************************
+**
+** Function         gap_config_cfm
+**
+** Description      This function processes the L2CAP configuration confirmation
+**                  event.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void gap_config_cfm (UINT16 l2cap_cid, tL2CAP_CFG_INFO *p_cfg)
+{
+    tGAP_CCB    *p_ccb;
+
+    /* Find CCB based on CID */
+    if ((p_ccb = gap_find_ccb_by_cid (l2cap_cid)) == NULL)
+        return;
+
+    if (p_cfg->result == L2CAP_CFG_OK)
+    {
+        p_ccb->con_flags |= GAP_CCB_FLAGS_MY_CFG_DONE;
+
+
+        if (p_ccb->cfg.fcr_present)
+            p_ccb->cfg.fcr.mode = p_cfg->fcr.mode;
+        else
+            p_ccb->cfg.fcr.mode = L2CAP_FCR_BASIC_MODE;
+
+        gap_checks_con_flags (p_ccb);
+    }
+    else
+    {
+        p_ccb->p_callback (p_ccb->gap_handle, GAP_EVT_CONN_CLOSED);
+        gap_release_ccb (p_ccb);
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         gap_disconnect_ind
+**
+** Description      This function handles a disconnect event from L2CAP. If
+**                  requested to, we ack the disconnect before dropping the CCB
+**
+** Returns          void
+**
+*******************************************************************************/
+static void gap_disconnect_ind (UINT16 l2cap_cid, BOOLEAN ack_needed)
+{
+    tGAP_CCB    *p_ccb;
+
+    GAP_TRACE_EVENT ("GAP_CONN - Rcvd L2CAP disc, CID: 0x%x", l2cap_cid);
+
+    /* Find CCB based on CID */
+    if ((p_ccb = gap_find_ccb_by_cid (l2cap_cid)) == NULL)
+        return;
+
+    if (ack_needed)
+        L2CA_DISCONNECT_RSP (l2cap_cid);
+
+    p_ccb->p_callback (p_ccb->gap_handle, GAP_EVT_CONN_CLOSED);
+    gap_release_ccb (p_ccb);
+}
+
+
+/*******************************************************************************
+**
+** Function         gap_data_ind
+**
+** Description      This function is called when data is received from L2CAP.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void gap_data_ind (UINT16 l2cap_cid, BT_HDR *p_msg)
+{
+    tGAP_CCB    *p_ccb;
+
+    /* Find CCB based on CID */
+    if ((p_ccb = gap_find_ccb_by_cid (l2cap_cid)) == NULL)
+    {
+        osi_free(p_msg);
+        return;
+    }
+
+    if (p_ccb->con_state == GAP_CCB_STATE_CONNECTED)
+    {
+        fixed_queue_enqueue(p_ccb->rx_queue, p_msg);
+
+        p_ccb->rx_queue_size += p_msg->len;
+        /*
+        GAP_TRACE_EVENT ("gap_data_ind - rx_queue_size=%d, msg len=%d",
+                                       p_ccb->rx_queue_size, p_msg->len);
+         */
+
+        p_ccb->p_callback (p_ccb->gap_handle, GAP_EVT_CONN_DATA_AVAIL);
+    }
+    else
+    {
+        osi_free(p_msg);
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         gap_congestion_ind
+**
+** Description      This is a callback function called by L2CAP when
+**                  data L2CAP congestion status changes
+**
+*******************************************************************************/
+static void gap_congestion_ind (UINT16 lcid, BOOLEAN is_congested)
+{
+    tGAP_CCB    *p_ccb;
+    UINT16       event;
+    BT_HDR      *p_buf;
+    UINT8        status;
+
+    GAP_TRACE_EVENT ("GAP_CONN - Rcvd L2CAP Is Congested (%d), CID: 0x%x",
+                      is_congested, lcid);
+
+    /* Find CCB based on CID */
+    if ((p_ccb = gap_find_ccb_by_cid (lcid)) == NULL)
+        return;
+
+    p_ccb->is_congested = is_congested;
+
+    event = (is_congested) ? GAP_EVT_CONN_CONGESTED : GAP_EVT_CONN_UNCONGESTED;
+    p_ccb->p_callback (p_ccb->gap_handle, event);
+
+    if (!is_congested)
+    {
+        while ((p_buf = (BT_HDR *)fixed_queue_try_dequeue(p_ccb->tx_queue)) != NULL)
+        {
+            status = L2CA_DATA_WRITE (p_ccb->connection_id, p_buf);
+
+            if (status == L2CAP_DW_CONGESTED)
+            {
+                p_ccb->is_congested = TRUE;
+                break;
+            }
+            else if (status != L2CAP_DW_SUCCESS)
+                break;
+        }
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         gap_find_ccb_by_cid
+**
+** Description      This function searches the CCB table for an entry with the
+**                  passed CID.
+**
+** Returns          the CCB address, or NULL if not found.
+**
+*******************************************************************************/
+static tGAP_CCB *gap_find_ccb_by_cid (UINT16 cid)
+{
+    UINT16       xx;
+    tGAP_CCB     *p_ccb;
+
+    /* Look through each connection control block */
+    for (xx = 0, p_ccb = gap_cb.conn.ccb_pool; xx < GAP_MAX_CONNECTIONS; xx++, p_ccb++)
+    {
+        if ((p_ccb->con_state != GAP_CCB_STATE_IDLE) && (p_ccb->connection_id == cid))
+            return (p_ccb);
+    }
+
+    /* If here, not found */
+    return (NULL);
+}
+
+
+/*******************************************************************************
+**
+** Function         gap_find_ccb_by_handle
+**
+** Description      This function searches the CCB table for an entry with the
+**                  passed handle.
+**
+** Returns          the CCB address, or NULL if not found.
+**
+*******************************************************************************/
+static tGAP_CCB *gap_find_ccb_by_handle (UINT16 handle)
+{
+    tGAP_CCB     *p_ccb;
+
+    /* Check that handle is valid */
+    if (handle < GAP_MAX_CONNECTIONS)
+    {
+        p_ccb = &gap_cb.conn.ccb_pool[handle];
+
+        if (p_ccb->con_state != GAP_CCB_STATE_IDLE)
+            return (p_ccb);
+    }
+
+    /* If here, handle points to invalid connection */
+    return (NULL);
+}
+
+
+/*******************************************************************************
+**
+** Function         gap_allocate_ccb
+**
+** Description      This function allocates a new CCB.
+**
+** Returns          CCB address, or NULL if none available.
+**
+*******************************************************************************/
+static tGAP_CCB *gap_allocate_ccb (void)
+{
+    UINT16       xx;
+    tGAP_CCB     *p_ccb;
+
+    /* Look through each connection control block for a free one */
+    for (xx = 0, p_ccb = gap_cb.conn.ccb_pool; xx < GAP_MAX_CONNECTIONS; xx++, p_ccb++)
+    {
+        if (p_ccb->con_state == GAP_CCB_STATE_IDLE)
+        {
+            memset (p_ccb, 0, sizeof (tGAP_CCB));
+            p_ccb->tx_queue = fixed_queue_new(SIZE_MAX);
+            p_ccb->rx_queue = fixed_queue_new(SIZE_MAX);
+
+            p_ccb->gap_handle   = xx;
+            p_ccb->rem_mtu_size = L2CAP_MTU_SIZE;
+
+            return (p_ccb);
+        }
+    }
+
+    /* If here, no free CCB found */
+    return (NULL);
+}
+
+
+/*******************************************************************************
+**
+** Function         gap_release_ccb
+**
+** Description      This function releases a CCB.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void gap_release_ccb (tGAP_CCB *p_ccb)
+{
+    UINT16       xx;
+    UINT16      psm = p_ccb->psm;
+    UINT8       service_id = p_ccb->service_id;
+
+    /* Drop any buffers we may be holding */
+    p_ccb->rx_queue_size = 0;
+
+    while (!fixed_queue_is_empty(p_ccb->rx_queue))
+        osi_free(fixed_queue_try_dequeue(p_ccb->rx_queue));
+    fixed_queue_free(p_ccb->rx_queue, NULL);
+    p_ccb->rx_queue = NULL;
+
+    while (!fixed_queue_is_empty(p_ccb->tx_queue))
+        osi_free(fixed_queue_try_dequeue(p_ccb->tx_queue));
+    fixed_queue_free(p_ccb->tx_queue, NULL);
+    p_ccb->tx_queue = NULL;
+
+    p_ccb->con_state = GAP_CCB_STATE_IDLE;
+
+    /* If no-one else is using the PSM, deregister from L2CAP */
+    for (xx = 0, p_ccb = gap_cb.conn.ccb_pool; xx < GAP_MAX_CONNECTIONS; xx++, p_ccb++)
+    {
+        if ((p_ccb->con_state != GAP_CCB_STATE_IDLE) && (p_ccb->psm == psm))
+            return;
+    }
+
+    /* Free the security record for this PSM */
+    BTM_SecClrService(service_id);
+    if (p_ccb->transport == BT_TRANSPORT_BR_EDR)
+        L2CA_DEREGISTER (psm);
+
+    if(p_ccb->transport == BT_TRANSPORT_LE)
+        L2CA_DEREGISTER_COC (psm);
+}
+
+#if (GAP_CONN_POST_EVT_INCLUDED == TRUE)
+
+/*******************************************************************************
+**
+** Function     gap_send_event
+**
+** Description  Send BT_EVT_TO_GAP_MSG event to BTU task
+**
+** Returns      None
+**
+*******************************************************************************/
+void gap_send_event (UINT16 gap_handle)
+{
+    BT_HDR *p_msg = (BT_HDR *)osi_malloc(BT_HDR_SIZE);
+
+    p_msg->event  = BT_EVT_TO_GAP_MSG;
+    p_msg->len    = 0;
+    p_msg->offset = 0;
+    p_msg->layer_specific = gap_handle;
+
+    GKI_send_msg(BTU_TASK, BTU_HCI_RCV_MBOX, p_msg);
+}
+
+#endif /* (GAP_CONN_POST_EVT_INCLUDED == TRUE) */
+#endif  /* GAP_CONN_INCLUDED */
diff --git a/rtkbt/code/bt/stack/gap/gap_int.h b/rtkbt/code/bt/stack/gap/gap_int.h
new file mode 100755
index 0000000..96c0343
--- /dev/null
+++ b/rtkbt/code/bt/stack/gap/gap_int.h
@@ -0,0 +1,166 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2013 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+
+#ifndef GAP_INT_H
+#define GAP_INT_H
+
+#include "bt_target.h"
+#include "osi/include/fixed_queue.h"
+#include "gap_api.h"
+#include "bt_common.h"
+#include "gatt_api.h"
+#define GAP_MAX_BLOCKS 2        /* Concurrent GAP commands pending at a time*/
+/* Define the Generic Access Profile control structure */
+typedef struct
+{
+    void          *p_data;      /* Pointer to any data returned in callback */
+    tGAP_CALLBACK *gap_cback;   /* Pointer to users callback function */
+    tGAP_CALLBACK *gap_inq_rslt_cback; /* Used for inquiry results */
+    UINT16         event;       /* Passed back in the callback */
+    UINT8          index;       /* Index of this control block and callback */
+    BOOLEAN        in_use;      /* True when structure is allocated */
+} tGAP_INFO;
+
+/* Define the control block for the FindAddrByName operation (Only 1 active at a time) */
+typedef struct
+{
+    tGAP_CALLBACK           *p_cback;
+    tBTM_INQ_INFO           *p_cur_inq; /* Pointer to the current inquiry database entry */
+    tGAP_FINDADDR_RESULTS    results;
+    BOOLEAN                  in_use;
+} tGAP_FINDADDR_CB;
+
+/* Define the GAP Connection Control Block.
+*/
+typedef struct
+{
+#define GAP_CCB_STATE_IDLE              0
+#define GAP_CCB_STATE_LISTENING         1
+#define GAP_CCB_STATE_CONN_SETUP        2
+#define GAP_CCB_STATE_CFG_SETUP         3
+#define GAP_CCB_STATE_WAIT_SEC          4
+#define GAP_CCB_STATE_CONNECTED         5
+    UINT8             con_state;
+
+#define GAP_CCB_FLAGS_IS_ORIG           0x01
+#define GAP_CCB_FLAGS_HIS_CFG_DONE      0x02
+#define GAP_CCB_FLAGS_MY_CFG_DONE       0x04
+#define GAP_CCB_FLAGS_SEC_DONE          0x08
+#define GAP_CCB_FLAGS_CONN_DONE         0x0E
+    UINT8             con_flags;
+
+    UINT8             service_id;           /* Used by BTM                          */
+    UINT16            gap_handle;           /* GAP handle                           */
+    UINT16            connection_id;        /* L2CAP CID                            */
+    BOOLEAN           rem_addr_specified;
+    UINT8             chan_mode_mask;       /* Supported channel modes (FCR)        */
+    BD_ADDR           rem_dev_address;
+    UINT16            psm;
+    UINT16            rem_mtu_size;
+
+    BOOLEAN           is_congested;
+    fixed_queue_t     *tx_queue;            /* Queue of buffers waiting to be sent  */
+    fixed_queue_t     *rx_queue;            /* Queue of buffers waiting to be read  */
+
+    UINT32            rx_queue_size;        /* Total data count in rx_queue         */
+
+    tGAP_CONN_CALLBACK *p_callback;         /* Users callback function              */
+
+    tL2CAP_CFG_INFO   cfg;                  /* Configuration                        */
+    tL2CAP_ERTM_INFO  ertm_info;            /* Pools and modes for ertm */
+    tBT_TRANSPORT     transport;            /* Transport channel BR/EDR or BLE */
+    tL2CAP_LE_CFG_INFO local_coc_cfg;       /* local configuration for LE Coc */
+    tL2CAP_LE_CFG_INFO peer_coc_cfg;        /* local configuration for LE Coc */
+} tGAP_CCB;
+
+typedef struct
+{
+#if AMP_INCLUDED == TRUE
+    tAMP_APPL_INFO    reg_info;
+#else
+    tL2CAP_APPL_INFO  reg_info;                     /* L2CAP Registration info */
+#endif
+    tGAP_CCB    ccb_pool[GAP_MAX_CONNECTIONS];
+} tGAP_CONN;
+
+
+#if BLE_INCLUDED == TRUE
+#define GAP_MAX_CHAR_NUM          4
+
+typedef struct
+{
+    UINT16                  handle;
+    UINT16                  uuid;
+    tGAP_BLE_ATTR_VALUE     attr_value;
+}tGAP_ATTR;
+#endif
+/**********************************************************************
+** M A I N   C O N T R O L   B L O C K
+***********************************************************************/
+
+#define GAP_MAX_CL GATT_CL_MAX_LCB
+
+typedef struct
+{
+    UINT16 uuid;
+    tGAP_BLE_CMPL_CBACK *p_cback;
+} tGAP_BLE_REQ;
+
+typedef struct
+{
+    BD_ADDR                 bda;
+    tGAP_BLE_CMPL_CBACK     *p_cback;
+    UINT16                  conn_id;
+    UINT16                  cl_op_uuid;
+    BOOLEAN                 in_use;
+    BOOLEAN                 connected;
+    fixed_queue_t           *pending_req_q;
+
+}tGAP_CLCB;
+
+typedef struct
+{
+    tGAP_INFO        blk[GAP_MAX_BLOCKS];
+    tBTM_CMPL_CB    *btm_cback[GAP_MAX_BLOCKS];
+    UINT8            trace_level;
+    tGAP_FINDADDR_CB findaddr_cb;   /* Contains the control block for finding a device addr */
+    tBTM_INQ_INFO   *cur_inqptr;
+
+#if GAP_CONN_INCLUDED == TRUE
+    tGAP_CONN        conn;
+#endif
+
+    /* LE GAP attribute database */
+#if BLE_INCLUDED == TRUE
+    tGAP_ATTR               gatt_attr[GAP_MAX_CHAR_NUM];
+    tGAP_CLCB               clcb[GAP_MAX_CL]; /* connection link*/
+    tGATT_IF                gatt_if;
+#endif
+} tGAP_CB;
+
+
+extern tGAP_CB  gap_cb;
+#if (GAP_CONN_INCLUDED == TRUE)
+    extern void gap_conn_init(void);
+#endif
+#if (BLE_INCLUDED == TRUE)
+    extern void gap_attr_db_init(void);
+#endif
+
+#endif
diff --git a/rtkbt/code/bt/stack/gap/gap_utils.c b/rtkbt/code/bt/stack/gap/gap_utils.c
new file mode 100755
index 0000000..6c8a05a
--- /dev/null
+++ b/rtkbt/code/bt/stack/gap/gap_utils.c
@@ -0,0 +1,142 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2013 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#include <string.h>
+#include "bt_target.h"
+#include "bt_utils.h"
+#include "gap_int.h"
+
+/*******************************************************************************
+**
+** Function         gap_allocate_cb
+**
+** Description      Look through the GAP Control Blocks for a free one.
+**
+** Returns          Pointer to the control block or NULL if not found
+**
+*******************************************************************************/
+tGAP_INFO *gap_allocate_cb (void)
+{
+    tGAP_INFO     *p_cb = &gap_cb.blk[0];
+    UINT8        x;
+
+    for (x = 0; x < GAP_MAX_BLOCKS; x++, p_cb++)
+    {
+        if (!p_cb->in_use)
+        {
+            memset (p_cb, 0, sizeof (tGAP_INFO));
+
+            p_cb->in_use = TRUE;
+            p_cb->index = x;
+            p_cb->p_data = (void *)NULL;
+            return (p_cb);
+        }
+    }
+
+    /* If here, no free control blocks found */
+    return (NULL);
+}
+
+
+/*******************************************************************************
+**
+** Function         gap_free_cb
+**
+** Description      Release GAP control block.
+**
+** Returns          Pointer to the control block or NULL if not found
+**
+*******************************************************************************/
+void gap_free_cb (tGAP_INFO *p_cb)
+{
+    if (p_cb)
+    {
+        p_cb->gap_cback = NULL;
+        p_cb->in_use = FALSE;
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         gap_is_service_busy
+**
+** Description      Look through the GAP Control Blocks that are in use
+**                  and check to see if the event waiting for is the command
+**                  requested.
+**
+** Returns          TRUE if already in use
+**                  FALSE if not busy
+**
+*******************************************************************************/
+BOOLEAN gap_is_service_busy (UINT16 request)
+{
+    tGAP_INFO   *p_cb = &gap_cb.blk[0];
+    UINT8        x;
+
+    for (x = 0; x < GAP_MAX_BLOCKS; x++, p_cb++)
+    {
+        if (p_cb->in_use && p_cb->event == request)
+            return (TRUE);
+    }
+
+    /* If here, service is not busy */
+    return (FALSE);
+}
+
+
+/*******************************************************************************
+**
+** Function         gap_convert_btm_status
+**
+** Description      Converts a BTM error status into a GAP error status
+**
+**
+** Returns          GAP_UNKNOWN_BTM_STATUS is returned if not recognized
+**
+*******************************************************************************/
+UINT16 gap_convert_btm_status (tBTM_STATUS btm_status)
+{
+    switch (btm_status)
+    {
+    case BTM_SUCCESS:
+        return (BT_PASS);
+
+    case BTM_CMD_STARTED:
+        return (GAP_CMD_INITIATED);
+
+    case BTM_BUSY:
+        return (GAP_ERR_BUSY);
+
+    case BTM_MODE_UNSUPPORTED:
+    case BTM_ILLEGAL_VALUE:
+        return (GAP_ERR_ILL_PARM);
+
+    case BTM_WRONG_MODE:
+        return (GAP_DEVICE_NOT_UP);
+
+    case BTM_UNKNOWN_ADDR:
+        return (GAP_BAD_BD_ADDR);
+
+    case BTM_DEVICE_TIMEOUT:
+        return (GAP_ERR_TIMEOUT);
+
+    default:
+        return (GAP_ERR_PROCESSING);
+    }
+}
diff --git a/rtkbt/code/bt/stack/gatt/att_protocol.c b/rtkbt/code/bt/stack/gatt/att_protocol.c
new file mode 100755
index 0000000..e096362
--- /dev/null
+++ b/rtkbt/code/bt/stack/gatt/att_protocol.c
@@ -0,0 +1,606 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2008-2014 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  this file contains ATT protocol functions
+ *
+ ******************************************************************************/
+
+#include "bt_target.h"
+
+#if BLE_INCLUDED == TRUE
+
+#include "gatt_int.h"
+#include "l2c_api.h"
+
+#define GATT_HDR_FIND_TYPE_VALUE_LEN    21
+#define GATT_OP_CODE_SIZE   1
+#define GATT_START_END_HANDLE_SIZE    4
+
+/**********************************************************************
+**   ATT protocl message building utility                              *
+***********************************************************************/
+/*******************************************************************************
+**
+** Function         attp_build_mtu_exec_cmd
+**
+** Description      Build a exchange MTU request
+**
+** Returns          None.
+**
+*******************************************************************************/
+BT_HDR *attp_build_mtu_cmd(UINT8 op_code, UINT16 rx_mtu)
+{
+    UINT8 *p;
+    BT_HDR *p_buf =
+        (BT_HDR *)osi_malloc(sizeof(BT_HDR) + GATT_HDR_SIZE + L2CAP_MIN_OFFSET);
+
+    p = (UINT8 *)(p_buf + 1) + L2CAP_MIN_OFFSET;
+    UINT8_TO_STREAM(p, op_code);
+    UINT16_TO_STREAM(p, rx_mtu);
+
+    p_buf->offset = L2CAP_MIN_OFFSET;
+    p_buf->len = GATT_HDR_SIZE; /* opcode + 2 bytes mtu */
+
+    return p_buf;
+}
+/*******************************************************************************
+**
+** Function         attp_build_exec_write_cmd
+**
+** Description      Build a execute write request or response.
+**
+** Returns          None.
+**
+*******************************************************************************/
+BT_HDR *attp_build_exec_write_cmd (UINT8 op_code, UINT8 flag)
+{
+    BT_HDR      *p_buf = (BT_HDR *)osi_malloc(GATT_DATA_BUF_SIZE);
+    UINT8       *p;
+
+    p = (UINT8 *)(p_buf + 1) + L2CAP_MIN_OFFSET;
+
+    p_buf->offset = L2CAP_MIN_OFFSET;
+    p_buf->len = GATT_OP_CODE_SIZE;
+
+    UINT8_TO_STREAM(p, op_code);
+
+    if (op_code == GATT_REQ_EXEC_WRITE) {
+        flag &= GATT_PREP_WRITE_EXEC;
+        UINT8_TO_STREAM (p, flag);
+        p_buf->len += 1;
+    }
+
+    return p_buf;
+}
+
+/*******************************************************************************
+**
+** Function         attp_build_err_cmd
+**
+** Description      Build a exchange MTU request
+**
+** Returns          None.
+**
+*******************************************************************************/
+BT_HDR *attp_build_err_cmd(UINT8 cmd_code, UINT16 err_handle, UINT8 reason)
+{
+    UINT8 *p;
+    BT_HDR *p_buf = (BT_HDR *)osi_malloc(sizeof(BT_HDR) + L2CAP_MIN_OFFSET + 5);
+
+    p = (UINT8 *)(p_buf + 1) + L2CAP_MIN_OFFSET;
+    UINT8_TO_STREAM(p, GATT_RSP_ERROR);
+    UINT8_TO_STREAM(p, cmd_code);
+    UINT16_TO_STREAM(p, err_handle);
+    UINT8_TO_STREAM(p, reason);
+
+    p_buf->offset = L2CAP_MIN_OFFSET;
+    /* GATT_HDR_SIZE (1B ERR_RSP op code+ 2B handle) + 1B cmd_op_code  + 1B status */
+    p_buf->len = GATT_HDR_SIZE + 1 + 1;
+
+    return p_buf;
+}
+/*******************************************************************************
+**
+** Function         attp_build_browse_cmd
+**
+** Description      Build a read information request or read by type request
+**
+** Returns          None.
+**
+*******************************************************************************/
+BT_HDR *attp_build_browse_cmd(UINT8 op_code, UINT16 s_hdl, UINT16 e_hdl, tBT_UUID uuid)
+{
+    const size_t payload_size = (GATT_OP_CODE_SIZE) + (GATT_START_END_HANDLE_SIZE) + (LEN_UUID_128);
+    BT_HDR *p_buf = (BT_HDR *)osi_malloc(sizeof(BT_HDR) + payload_size + L2CAP_MIN_OFFSET);
+
+    UINT8 *p = (UINT8 *)(p_buf + 1) + L2CAP_MIN_OFFSET;
+    /* Describe the built message location and size */
+    p_buf->offset = L2CAP_MIN_OFFSET;
+    p_buf->len = GATT_OP_CODE_SIZE + 4;
+
+    UINT8_TO_STREAM(p, op_code);
+    UINT16_TO_STREAM(p, s_hdl);
+    UINT16_TO_STREAM(p, e_hdl);
+    p_buf->len += gatt_build_uuid_to_stream(&p, uuid);
+
+    return p_buf;
+}
+
+/*******************************************************************************
+**
+** Function         attp_build_read_handles_cmd
+**
+** Description      Build a read by type and value request.
+**
+** Returns          pointer to the command buffer.
+**
+*******************************************************************************/
+BT_HDR *attp_build_read_by_type_value_cmd (UINT16 payload_size, tGATT_FIND_TYPE_VALUE *p_value_type)
+{
+    UINT8 *p;
+    UINT16 len = p_value_type->value_len;
+    BT_HDR *p_buf =
+        (BT_HDR *)osi_malloc(sizeof(BT_HDR) + payload_size + L2CAP_MIN_OFFSET);
+
+    p = (UINT8 *)(p_buf + 1) + L2CAP_MIN_OFFSET;
+    p_buf->offset = L2CAP_MIN_OFFSET;
+    p_buf->len = 5; /* opcode + s_handle + e_handle */
+
+    UINT8_TO_STREAM(p, GATT_REQ_FIND_TYPE_VALUE);
+    UINT16_TO_STREAM(p, p_value_type->s_handle);
+    UINT16_TO_STREAM(p, p_value_type->e_handle);
+
+    p_buf->len += gatt_build_uuid_to_stream(&p, p_value_type->uuid);
+
+    if (p_value_type->value_len +  p_buf->len > payload_size)
+        len = payload_size - p_buf->len;
+
+    memcpy(p, p_value_type->value, len);
+    p_buf->len += len;
+
+    return p_buf;
+}
+
+/*******************************************************************************
+**
+** Function         attp_build_read_multi_cmd
+**
+** Description      Build a read multiple request
+**
+** Returns          None.
+**
+*******************************************************************************/
+BT_HDR *attp_build_read_multi_cmd(UINT16 payload_size, UINT16 num_handle, UINT16 *p_handle)
+{
+    UINT8 *p, i = 0;
+    BT_HDR *p_buf =
+        (BT_HDR *)osi_malloc(sizeof(BT_HDR) + num_handle * 2 + 1 + L2CAP_MIN_OFFSET);
+
+    p = (UINT8 *)(p_buf + 1) + L2CAP_MIN_OFFSET;
+    p_buf->offset = L2CAP_MIN_OFFSET;
+    p_buf->len = 1;
+
+    UINT8_TO_STREAM(p, GATT_REQ_READ_MULTI);
+
+    for (i = 0; i < num_handle && p_buf->len + 2 <= payload_size; i ++) {
+      UINT16_TO_STREAM (p, *(p_handle + i));
+      p_buf->len += 2;
+    }
+
+    return p_buf;
+}
+/*******************************************************************************
+**
+** Function         attp_build_handle_cmd
+**
+** Description      Build a read /read blob request
+**
+** Returns          None.
+**
+*******************************************************************************/
+BT_HDR *attp_build_handle_cmd(UINT8 op_code, UINT16 handle, UINT16 offset)
+{
+    UINT8 *p;
+    BT_HDR *p_buf =
+        (BT_HDR *)osi_malloc(sizeof(BT_HDR) + 5 + L2CAP_MIN_OFFSET);
+
+    p = (UINT8 *)(p_buf + 1) + L2CAP_MIN_OFFSET;
+    p_buf->offset = L2CAP_MIN_OFFSET;
+
+    UINT8_TO_STREAM(p, op_code);
+    p_buf->len  = 1;
+
+    UINT16_TO_STREAM(p, handle);
+    p_buf->len += 2;
+
+    if (op_code == GATT_REQ_READ_BLOB) {
+        UINT16_TO_STREAM (p, offset);
+        p_buf->len += 2;
+    }
+
+    return p_buf;
+}
+
+/*******************************************************************************
+**
+** Function         attp_build_opcode_cmd
+**
+** Description      Build a  request/response with opcode only.
+**
+** Returns          None.
+**
+*******************************************************************************/
+BT_HDR *attp_build_opcode_cmd(UINT8 op_code)
+{
+    UINT8 *p;
+    BT_HDR *p_buf =
+        (BT_HDR *)osi_malloc(sizeof(BT_HDR) + 1 + L2CAP_MIN_OFFSET);
+
+    p = (UINT8 *)(p_buf + 1) + L2CAP_MIN_OFFSET;
+    p_buf->offset = L2CAP_MIN_OFFSET;
+
+    UINT8_TO_STREAM(p, op_code);
+    p_buf->len  = 1;
+
+    return p_buf;
+}
+
+/*******************************************************************************
+**
+** Function         attp_build_value_cmd
+**
+** Description      Build a attribute value request
+**
+** Returns          None.
+**
+*******************************************************************************/
+BT_HDR *attp_build_value_cmd (UINT16 payload_size, UINT8 op_code, UINT16 handle,
+                              UINT16 offset, UINT16 len, UINT8 *p_data)
+{
+    UINT8 *p, *pp, pair_len, *p_pair_len;
+    BT_HDR *p_buf =
+        (BT_HDR *)osi_malloc(sizeof(BT_HDR) + payload_size + L2CAP_MIN_OFFSET);
+
+    p = pp = (UINT8 *)(p_buf + 1) + L2CAP_MIN_OFFSET;
+    UINT8_TO_STREAM(p, op_code);
+    p_buf->offset = L2CAP_MIN_OFFSET;
+    p_buf->len = 1;
+
+    if (op_code == GATT_RSP_READ_BY_TYPE) {
+        p_pair_len = p;
+        pair_len = len + 2;
+        UINT8_TO_STREAM (p, pair_len);
+        p_buf->len += 1;
+    }
+    if (op_code != GATT_RSP_READ_BLOB && op_code != GATT_RSP_READ) {
+        UINT16_TO_STREAM (p, handle);
+        p_buf->len += 2;
+    }
+
+    if (op_code == GATT_REQ_PREPARE_WRITE ||op_code == GATT_RSP_PREPARE_WRITE) {
+        UINT16_TO_STREAM (p, offset);
+        p_buf->len += 2;
+    }
+
+    if (len > 0 && p_data != NULL) {
+        /* ensure data not exceed MTU size */
+        if (payload_size - p_buf->len < len) {
+            len = payload_size - p_buf->len;
+            /* update handle value pair length */
+            if (op_code == GATT_RSP_READ_BY_TYPE)
+                *p_pair_len = (len + 2);
+
+            GATT_TRACE_WARNING("attribute value too long, to be truncated to %d", len);
+        }
+
+        ARRAY_TO_STREAM(p, p_data, len);
+        p_buf->len += len;
+    }
+
+    return p_buf;
+}
+
+/*******************************************************************************
+**
+** Function         attp_send_msg_to_l2cap
+**
+** Description      Send message to L2CAP.
+**
+*******************************************************************************/
+tGATT_STATUS attp_send_msg_to_l2cap(tGATT_TCB *p_tcb, BT_HDR *p_toL2CAP)
+{
+    UINT16      l2cap_ret;
+
+
+    if (p_tcb->att_lcid == L2CAP_ATT_CID)
+        l2cap_ret = L2CA_SendFixedChnlData (L2CAP_ATT_CID, p_tcb->peer_bda, p_toL2CAP);
+    else
+        l2cap_ret = (UINT16) L2CA_DataWrite (p_tcb->att_lcid, p_toL2CAP);
+
+    if (l2cap_ret == L2CAP_DW_FAILED)
+    {
+        GATT_TRACE_ERROR("ATT   failed to pass msg:0x%0x to L2CAP",
+            *((UINT8 *)(p_toL2CAP + 1) + p_toL2CAP->offset));
+        return GATT_INTERNAL_ERROR;
+    }
+    else if (l2cap_ret == L2CAP_DW_CONGESTED)
+    {
+        GATT_TRACE_DEBUG("ATT congested, message accepted");
+        return GATT_CONGESTED;
+    }
+    return GATT_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         attp_build_sr_msg
+**
+** Description      Build ATT Server PDUs.
+**
+*******************************************************************************/
+BT_HDR *attp_build_sr_msg(tGATT_TCB *p_tcb, UINT8 op_code, tGATT_SR_MSG *p_msg)
+{
+    BT_HDR          *p_cmd = NULL;
+    UINT16          offset = 0;
+
+    switch (op_code)
+    {
+    case GATT_RSP_READ_BLOB:
+    case GATT_RSP_PREPARE_WRITE:
+        GATT_TRACE_EVENT ("ATT_RSP_READ_BLOB/GATT_RSP_PREPARE_WRITE: len = %d offset = %d",
+                    p_msg->attr_value.len, p_msg->attr_value.offset);
+        offset = p_msg->attr_value.offset;
+/* Coverity: [FALSE-POSITIVE error] intended fall through */
+/* Missing break statement between cases in switch statement */
+        /* fall through */
+    case GATT_RSP_READ_BY_TYPE:
+    case GATT_RSP_READ:
+    case GATT_HANDLE_VALUE_NOTIF:
+    case GATT_HANDLE_VALUE_IND:
+        p_cmd = attp_build_value_cmd(p_tcb->payload_size,
+                                     op_code,
+                                     p_msg->attr_value.handle,
+                                     offset,
+                                     p_msg->attr_value.len,
+                                     p_msg->attr_value.value);
+        break;
+
+    case GATT_RSP_WRITE:
+        p_cmd = attp_build_opcode_cmd(op_code);
+        break;
+
+    case GATT_RSP_ERROR:
+        p_cmd = attp_build_err_cmd(p_msg->error.cmd_code, p_msg->error.handle, p_msg->error.reason);
+        break;
+
+    case GATT_RSP_EXEC_WRITE:
+        p_cmd = attp_build_exec_write_cmd(op_code, 0);
+        break;
+
+    case GATT_RSP_MTU:
+        p_cmd = attp_build_mtu_cmd(op_code, p_msg->mtu);
+        break;
+
+    default:
+        GATT_TRACE_DEBUG("attp_build_sr_msg: unknown op code = %d", op_code);
+        break;
+    }
+
+    if (!p_cmd)
+        GATT_TRACE_ERROR("No resources");
+
+    return p_cmd;
+}
+
+/*******************************************************************************
+**
+** Function         attp_send_sr_msg
+**
+** Description      This function sends the server response or indication message
+**                  to client.
+**
+** Parameter        p_tcb: pointer to the connecton control block.
+**                  p_msg: pointer to message parameters structure.
+**
+** Returns          GATT_SUCCESS if sucessfully sent; otherwise error code.
+**
+**
+*******************************************************************************/
+tGATT_STATUS attp_send_sr_msg (tGATT_TCB *p_tcb, BT_HDR *p_msg)
+{
+    tGATT_STATUS     cmd_sent = GATT_NO_RESOURCES;
+
+    if (p_tcb != NULL)
+    {
+        if (p_msg != NULL)
+        {
+            p_msg->offset = L2CAP_MIN_OFFSET;
+            cmd_sent = attp_send_msg_to_l2cap (p_tcb, p_msg);
+        }
+    }
+    return cmd_sent;
+}
+
+/*******************************************************************************
+**
+** Function         attp_cl_send_cmd
+**
+** Description      Send a ATT command or enqueue it.
+**
+** Returns          GATT_SUCCESS if command sent
+**                  GATT_CONGESTED if command sent but channel congested
+**                  GATT_CMD_STARTED if command queue up in GATT
+**                  GATT_ERROR if command sending failure
+**
+*******************************************************************************/
+tGATT_STATUS attp_cl_send_cmd(tGATT_TCB *p_tcb, UINT16 clcb_idx, UINT8 cmd_code, BT_HDR *p_cmd)
+{
+    tGATT_STATUS att_ret = GATT_SUCCESS;
+
+    if (p_tcb != NULL)
+    {
+        cmd_code &= ~GATT_AUTH_SIGN_MASK;
+
+        /* no pending request or value confirmation */
+        if (p_tcb->pending_cl_req == p_tcb->next_slot_inq ||
+            cmd_code == GATT_HANDLE_VALUE_CONF)
+        {
+            att_ret = attp_send_msg_to_l2cap(p_tcb, p_cmd);
+            if (att_ret == GATT_CONGESTED || att_ret == GATT_SUCCESS)
+            {
+                /* do not enq cmd if handle value confirmation or set request */
+                if (cmd_code != GATT_HANDLE_VALUE_CONF && cmd_code != GATT_CMD_WRITE)
+                {
+                    gatt_start_rsp_timer (clcb_idx);
+                    gatt_cmd_enq(p_tcb, clcb_idx, FALSE, cmd_code, NULL);
+                }
+            }
+            else
+                att_ret = GATT_INTERNAL_ERROR;
+        }
+        else
+        {
+            att_ret = GATT_CMD_STARTED;
+            gatt_cmd_enq(p_tcb, clcb_idx, TRUE, cmd_code, p_cmd);
+        }
+    }
+    else
+        att_ret = GATT_ERROR;
+
+    return att_ret;
+}
+/*******************************************************************************
+**
+** Function         attp_send_cl_msg
+**
+** Description      This function sends the client request or confirmation message
+**                  to server.
+**
+** Parameter        p_tcb: pointer to the connectino control block.
+**                  clcb_idx: clcb index
+**                  op_code: message op code.
+**                  p_msg: pointer to message parameters structure.
+**
+** Returns          GATT_SUCCESS if sucessfully sent; otherwise error code.
+**
+**
+*******************************************************************************/
+tGATT_STATUS attp_send_cl_msg (tGATT_TCB *p_tcb, UINT16 clcb_idx, UINT8 op_code, tGATT_CL_MSG *p_msg)
+{
+    tGATT_STATUS     status = GATT_NO_RESOURCES;
+    BT_HDR          *p_cmd = NULL;
+    UINT16          offset = 0, handle;
+
+    if (p_tcb != NULL)
+    {
+        switch (op_code)
+        {
+        case GATT_REQ_MTU:
+            if (p_msg->mtu <= GATT_MAX_MTU_SIZE)
+            {
+                p_tcb->payload_size = p_msg->mtu;
+                p_cmd = attp_build_mtu_cmd(GATT_REQ_MTU, p_msg->mtu);
+            }
+            else
+                status = GATT_ILLEGAL_PARAMETER;
+            break;
+
+        case GATT_REQ_FIND_INFO:
+        case GATT_REQ_READ_BY_TYPE:
+        case GATT_REQ_READ_BY_GRP_TYPE:
+            if (GATT_HANDLE_IS_VALID (p_msg->browse.s_handle) &&
+                GATT_HANDLE_IS_VALID (p_msg->browse.e_handle)  &&
+                p_msg->browse.s_handle <= p_msg->browse.e_handle)
+            {
+                p_cmd = attp_build_browse_cmd(op_code,
+                                            p_msg->browse.s_handle,
+                                            p_msg->browse.e_handle,
+                                            p_msg->browse.uuid);
+            }
+            else
+                status = GATT_ILLEGAL_PARAMETER;
+            break;
+
+        case GATT_REQ_READ_BLOB:
+            offset = p_msg->read_blob.offset;
+            /* fall through */
+        case GATT_REQ_READ:
+            handle = (op_code == GATT_REQ_READ) ? p_msg->handle: p_msg->read_blob.handle;
+            /*  handle checking */
+            if (GATT_HANDLE_IS_VALID (handle))
+            {
+                p_cmd = attp_build_handle_cmd(op_code, handle, offset);
+            }
+            else
+                status = GATT_ILLEGAL_PARAMETER;
+            break;
+
+        case GATT_HANDLE_VALUE_CONF:
+            p_cmd = attp_build_opcode_cmd(op_code);
+            break;
+
+        case GATT_REQ_PREPARE_WRITE:
+            offset = p_msg->attr_value.offset;
+            /* fall through */
+        case GATT_REQ_WRITE:
+        case GATT_CMD_WRITE:
+        case GATT_SIGN_CMD_WRITE:
+            if (GATT_HANDLE_IS_VALID (p_msg->attr_value.handle))
+            {
+                p_cmd = attp_build_value_cmd (p_tcb->payload_size,
+                                              op_code, p_msg->attr_value.handle,
+                                              offset,
+                                              p_msg->attr_value.len,
+                                              p_msg->attr_value.value);
+            }
+            else
+                status = GATT_ILLEGAL_PARAMETER;
+            break;
+
+        case GATT_REQ_EXEC_WRITE:
+            p_cmd = attp_build_exec_write_cmd(op_code, p_msg->exec_write);
+            break;
+
+        case GATT_REQ_FIND_TYPE_VALUE:
+            p_cmd = attp_build_read_by_type_value_cmd(p_tcb->payload_size, &p_msg->find_type_value);
+            break;
+
+        case GATT_REQ_READ_MULTI:
+            p_cmd = attp_build_read_multi_cmd(p_tcb->payload_size,
+                                              p_msg->read_multi.num_handles,
+                                              p_msg->read_multi.handles);
+            break;
+
+        default:
+            break;
+        }
+
+        if (p_cmd != NULL)
+            status = attp_cl_send_cmd(p_tcb, clcb_idx, op_code, p_cmd);
+
+    }
+    else
+    {
+        GATT_TRACE_ERROR("Peer device not connected");
+    }
+
+    return status;
+}
+#endif
diff --git a/rtkbt/code/bt/stack/gatt/gatt_api.c b/rtkbt/code/bt/stack/gatt/gatt_api.c
new file mode 100755
index 0000000..c0a14d9
--- /dev/null
+++ b/rtkbt/code/bt/stack/gatt/gatt_api.c
@@ -0,0 +1,1645 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  this file contains GATT interface functions
+ *
+ ******************************************************************************/
+#include "bt_target.h"
+
+
+#if defined(BTA_GATT_INCLUDED) && (BTA_GATT_INCLUDED == TRUE)
+
+#include "bt_common.h"
+#include <stdio.h>
+#include <string.h>
+#include "gatt_api.h"
+#include "gatt_int.h"
+#include "l2c_api.h"
+#include "btm_int.h"
+
+/*******************************************************************************
+**
+** Function         GATT_SetTraceLevel
+**
+** Description      This function sets the trace level.  If called with
+**                  a value of 0xFF, it simply returns the current trace level.
+**
+**                  Input Parameters:
+**                      level:  The level to set the GATT tracing to:
+**                      0xff-returns the current setting.
+**                      0-turns off tracing.
+**                      >= 1-Errors.
+**                      >= 2-Warnings.
+**                      >= 3-APIs.
+**                      >= 4-Events.
+**                      >= 5-Debug.
+**
+** Returns          The new or current trace level
+**
+*******************************************************************************/
+UINT8 GATT_SetTraceLevel (UINT8 new_level)
+{
+    if (new_level != 0xFF)
+        gatt_cb.trace_level = new_level;
+
+    return(gatt_cb.trace_level);
+}
+
+/*****************************************************************************
+**
+**                  GATT SERVER API
+**
+******************************************************************************/
+/*******************************************************************************
+**
+** Function         GATTS_AddHandleRange
+**
+** Description      This function add the allocated handles range for the specifed
+**                  application UUID, service UUID and service instance
+**
+** Parameter        p_hndl_range:   pointer to allocated handles information
+**
+** Returns          TRUE if handle range is added sucessfully; otherwise FALSE.
+**
+*******************************************************************************/
+
+BOOLEAN GATTS_AddHandleRange(tGATTS_HNDL_RANGE *p_hndl_range)
+{
+    tGATT_HDL_LIST_ELEM *p_buf;
+    BOOLEAN status= FALSE;
+
+    if ((p_buf = gatt_alloc_hdl_buffer()) != NULL)
+    {
+        p_buf->asgn_range = *p_hndl_range;
+        status  = gatt_add_an_item_to_list(&gatt_cb.hdl_list_info, p_buf);
+    }
+    return status;
+}
+
+
+/*******************************************************************************
+**
+** Function         GATTS_NVRegister
+**
+** Description      Application manager calls this function to register for
+**                  NV save callback function.  There can be one and only one
+**                  NV save callback function.
+**
+** Parameter        p_cb_info : callback informaiton
+**
+** Returns          TRUE if registered OK, else FALSE
+**
+*******************************************************************************/
+BOOLEAN  GATTS_NVRegister (tGATT_APPL_INFO *p_cb_info)
+{
+    BOOLEAN status= FALSE;
+    if (p_cb_info)
+    {
+        gatt_cb.cb_info = *p_cb_info;
+        status = TRUE;
+        gatt_init_srv_chg();
+    }
+
+    return status;
+}
+
+/*******************************************************************************
+**
+** Function         GATTS_CreateService
+**
+** Description      This function is called to reserve a block of handles for a service.
+**
+**                  *** It should be called only once per service instance  ***
+**
+** Parameter        gatt_if       : application if
+**                  p_svc_uuid    : service UUID
+**                  svc_inst      : instance of the service inside the application
+**                  num_handles   : number of handles needed by the service.
+**                  is_pri        : is a primary service or not.
+**
+** Returns          service handle if sucessful, otherwise 0.
+**
+*******************************************************************************/
+UINT16 GATTS_CreateService (tGATT_IF gatt_if, tBT_UUID *p_svc_uuid,
+                            UINT16 svc_inst, UINT16 num_handles, BOOLEAN is_pri)
+{
+
+    tGATT_HDL_LIST_INFO     *p_list_info= &gatt_cb.hdl_list_info;
+    tGATT_HDL_LIST_ELEM     *p_list=NULL;
+    UINT16                  s_hdl=0;
+    BOOLEAN                 save_hdl=FALSE;
+    tGATTS_PENDING_NEW_SRV_START      *p_buf=NULL;
+    tGATT_REG              *p_reg = gatt_get_regcb(gatt_if);
+    tBT_UUID     *p_app_uuid128;
+
+
+    GATT_TRACE_API ("GATTS_CreateService" );
+
+    if (p_reg == NULL)
+    {
+        GATT_TRACE_ERROR ("Inavlid gatt_if=%d", gatt_if);
+        return(0);
+    }
+
+    p_app_uuid128 = &p_reg->app_uuid128;
+
+    if ((p_list = gatt_find_hdl_buffer_by_app_id(p_app_uuid128, p_svc_uuid, svc_inst)) != NULL)
+    {
+        s_hdl = p_list->asgn_range.s_handle;
+        GATT_TRACE_DEBUG ("Service already been created!!");
+    }
+    else
+    {
+        if ( (p_svc_uuid->len == LEN_UUID_16) && (p_svc_uuid->uu.uuid16 == UUID_SERVCLASS_GATT_SERVER))
+        {
+            s_hdl=  gatt_cb.hdl_cfg.gatt_start_hdl;
+        }
+        else if ((p_svc_uuid->len == LEN_UUID_16) && (p_svc_uuid->uu.uuid16 == UUID_SERVCLASS_GAP_SERVER))
+        {
+            s_hdl= gatt_cb.hdl_cfg.gap_start_hdl;
+        }
+        else
+        {
+            p_list = p_list_info->p_first;
+
+            if (p_list)
+            {
+                s_hdl = p_list->asgn_range.e_handle + 1;
+            }
+
+            if (s_hdl < gatt_cb.hdl_cfg.app_start_hdl)
+            {
+
+                s_hdl= gatt_cb.hdl_cfg.app_start_hdl;
+            }
+            save_hdl = TRUE;
+        }
+
+        /* check for space */
+        if (num_handles > (0xFFFF - s_hdl + 1))
+        {
+            GATT_TRACE_ERROR ("GATTS_ReserveHandles: no handles, s_hdl: %u  needed: %u", s_hdl, num_handles);
+            return(0);
+        }
+
+        if ( (p_list = gatt_alloc_hdl_buffer()) == NULL)
+        {
+            /* No free entry */
+            GATT_TRACE_ERROR ("GATTS_ReserveHandles: no free handle blocks");
+            return(0);
+        }
+
+        p_list->asgn_range.app_uuid128 = *p_app_uuid128;
+        p_list->asgn_range.svc_uuid    = *p_svc_uuid;
+        p_list->asgn_range.svc_inst    = svc_inst;
+        p_list->asgn_range.s_handle    = s_hdl;
+        p_list->asgn_range.e_handle    = s_hdl+num_handles-1;
+        p_list->asgn_range.is_primary  = is_pri;
+
+        gatt_add_an_item_to_list(p_list_info, p_list);
+
+        if (save_hdl)
+        {
+            if (gatt_cb.cb_info.p_nv_save_callback)
+                (*gatt_cb.cb_info.p_nv_save_callback)(TRUE, &p_list->asgn_range);
+            /* add a pending new  service change item to the list */
+            if ( (p_buf = gatt_add_pending_new_srv_start(&p_list->asgn_range)) == NULL)
+            {
+                /* No free entry */
+                GATT_TRACE_ERROR ("gatt_add_pending_new_srv_start: no free blocks");
+
+                if (p_list)
+                {
+                    gatt_remove_an_item_from_list(p_list_info, p_list);
+                    gatt_free_hdl_buffer(p_list);
+                }
+                return(0);
+            }
+
+            GATT_TRACE_DEBUG ("Add a new srv chg item");
+        }
+    }
+
+    if (!gatts_init_service_db(&p_list->svc_db, p_svc_uuid, is_pri, s_hdl , num_handles))
+    {
+        GATT_TRACE_ERROR ("GATTS_ReserveHandles: service DB initialization failed");
+        if (p_list)
+        {
+            gatt_remove_an_item_from_list(p_list_info, p_list);
+            gatt_free_hdl_buffer(p_list);
+        }
+
+        if (p_buf)
+            osi_free(fixed_queue_try_remove_from_queue(gatt_cb.pending_new_srv_start_q, p_buf));
+        return(0);
+    }
+
+    GATT_TRACE_DEBUG ("GATTS_CreateService(success): handles needed:%u s_hdl=%u e_hdl=%u %s[%x] is_primary=%d",
+                       num_handles, p_list->asgn_range.s_handle , p_list->asgn_range.e_handle,
+                       ((p_list->asgn_range.svc_uuid.len == 2) ? "uuid16": "uuid128" ),
+                       p_list->asgn_range.svc_uuid.uu.uuid16,
+                       p_list->asgn_range.is_primary);
+
+    return(s_hdl);
+}
+
+/*******************************************************************************
+**
+** Function         GATTS_AddIncludeService
+**
+** Description      This function is called to add an included service.
+**
+** Parameter        service_handle : To which service this included service is added to.
+**                  include_svc_handle    : included service handle.
+**
+** Returns          included service attribute handle. If 0, add included service
+**                  fail.
+**
+*******************************************************************************/
+UINT16 GATTS_AddIncludeService (UINT16 service_handle, UINT16 include_svc_handle)
+
+{
+    tGATT_HDL_LIST_ELEM  *p_decl, *p_incl_decl;
+
+    if ((p_decl = gatt_find_hdl_buffer_by_handle(service_handle)) == NULL)
+    {
+        GATT_TRACE_DEBUG("Service not created");
+        return 0;
+    }
+    if ((p_incl_decl = gatt_find_hdl_buffer_by_handle(include_svc_handle)) == NULL)
+    {
+        GATT_TRACE_DEBUG("Included Service not created");
+        return 0;
+    }
+
+    return gatts_add_included_service(&p_decl->svc_db,
+                                      p_incl_decl->asgn_range.s_handle,
+                                      p_incl_decl->asgn_range.e_handle,
+                                      p_incl_decl->asgn_range.svc_uuid);
+}
+/*******************************************************************************
+**
+** Function         GATTS_AddCharacteristic
+**
+** Description      This function is called to add a characteristic into a service.
+**                  It will add a characteristic declaration and characteristic
+**                  value declaration into the service database identified by the
+**                  service handle.
+**
+** Parameter        service_handle : To which service this included service is added to.
+**                  char_uuid : Characteristic UUID.
+**                  perm      : Characteristic value declaration attribute permission.
+**                  property  : Characteristic Properties
+**
+** Returns          Characteristic value declaration attribute handle. 0 if failed.
+**
+*******************************************************************************/
+UINT16 GATTS_AddCharacteristic (UINT16 service_handle, tBT_UUID *p_char_uuid,
+                                tGATT_PERM perm,tGATT_CHAR_PROP property)
+{
+    tGATT_HDL_LIST_ELEM  *p_decl;
+
+    if ((p_decl = gatt_find_hdl_buffer_by_handle(service_handle)) == NULL)
+    {
+        GATT_TRACE_DEBUG("Service not created");
+        return 0;
+    }
+    /* data validity checking */
+    if (  ((property & GATT_CHAR_PROP_BIT_AUTH) && !(perm & GATT_WRITE_SIGNED_PERM)) ||
+          ((perm & GATT_WRITE_SIGNED_PERM) && !(property & GATT_CHAR_PROP_BIT_AUTH)) )
+    {
+        GATT_TRACE_DEBUG("Invalid configuration property=0x%x perm=0x%x ", property, perm);
+        return 0;
+    }
+
+    return gatts_add_characteristic(&p_decl->svc_db,
+                                    perm,
+                                    property,
+                                    p_char_uuid);
+}
+/*******************************************************************************
+**
+** Function         GATTS_AddCharDescriptor
+**
+** Description      This function is called to add a characteristic descriptor
+**                  into a service database. Add descriptor should follow add char
+**                  to which it belongs, and next add char should be done only
+**                  after all add descriptors for the previous char.
+**
+** Parameter        service_handle  : To which service this characteristic descriptor
+**                                    is added to.
+**                  perm            : Characteristic value declaration attribute
+**                                    permission.
+**                  p_descr_uuid    : Characteristic descriptor UUID
+**
+** Returns         Characteristic descriptor attribute handle. 0 if add
+**                 characteristic descriptor failed.
+**
+*******************************************************************************/
+UINT16 GATTS_AddCharDescriptor (UINT16 service_handle,
+                                 tGATT_PERM perm,
+                                 tBT_UUID  * p_descr_uuid)
+{
+    tGATT_HDL_LIST_ELEM  *p_decl;
+
+    if ((p_decl = gatt_find_hdl_buffer_by_handle(service_handle)) == NULL)
+    {
+        GATT_TRACE_DEBUG("Service not created");
+        return 0;
+    }
+    if (p_descr_uuid == NULL ||
+        (p_descr_uuid->len != LEN_UUID_128 && p_descr_uuid->len !=  LEN_UUID_16
+         && p_descr_uuid->len !=  LEN_UUID_32))
+    {
+        GATT_TRACE_DEBUG("Illegal parameter");
+        return 0;
+    }
+
+    return gatts_add_char_descr(&p_decl->svc_db,
+                                perm,
+                                p_descr_uuid);
+
+}
+/*******************************************************************************
+**
+** Function         GATTS_DeleteService
+**
+** Description      This function is called to delete a service.
+**
+** Parameter        gatt_if       : application interface
+**                  p_svc_uuid    : service UUID
+**                  svc_inst      : instance of the service inside the application
+**
+** Returns          TRUE if operation succeed, FALSE if handle block was not found.
+**
+*******************************************************************************/
+BOOLEAN GATTS_DeleteService (tGATT_IF gatt_if, tBT_UUID *p_svc_uuid, UINT16 svc_inst)
+{
+
+    tGATT_HDL_LIST_INFO             *p_list_info= &gatt_cb.hdl_list_info;
+    tGATT_HDL_LIST_ELEM             *p_list=NULL;
+    UINT8                           i_sreg;
+    tGATTS_PENDING_NEW_SRV_START    *p_buf;
+    tGATT_REG       *p_reg = gatt_get_regcb(gatt_if);
+    tBT_UUID *p_app_uuid128;
+
+    GATT_TRACE_DEBUG ("GATTS_DeleteService");
+
+    if (p_reg == NULL)
+    {
+        GATT_TRACE_ERROR ("Applicaiton not foud");
+        return(FALSE);
+    }
+    p_app_uuid128 = &p_reg->app_uuid128;
+
+    if ((p_list = gatt_find_hdl_buffer_by_app_id(p_app_uuid128, p_svc_uuid, svc_inst)) == NULL)
+    {
+        GATT_TRACE_ERROR ("No Service found");
+        return(FALSE);
+    }
+
+    if ( (p_buf = gatt_sr_is_new_srv_chg(&p_list->asgn_range.app_uuid128,
+                                         &p_list->asgn_range.svc_uuid,
+                                         p_list->asgn_range.svc_inst)) != NULL)
+    {
+        GATT_TRACE_DEBUG ("Delete a new service changed item - the service has not yet started");
+        osi_free(fixed_queue_try_remove_from_queue(gatt_cb.pending_new_srv_start_q, p_buf));
+    }
+    else
+    {
+        gatt_proc_srv_chg();
+    }
+
+    if ((i_sreg = gatt_sr_find_i_rcb_by_app_id (p_app_uuid128,
+                                                p_svc_uuid,
+                                                svc_inst)) != GATT_MAX_SR_PROFILES)
+    {
+        GATTS_StopService(gatt_cb.sr_reg[i_sreg].s_hdl);
+    }
+
+    GATT_TRACE_DEBUG ("released handles s_hdl=%u e_hdl=%u",
+                       p_list->asgn_range.s_handle , p_list->asgn_range.e_handle  );
+
+    if ( (p_list->asgn_range.s_handle >= gatt_cb.hdl_cfg.app_start_hdl)
+         && gatt_cb.cb_info.p_nv_save_callback)
+        (*gatt_cb.cb_info.p_nv_save_callback)(FALSE, &p_list->asgn_range);
+
+    gatt_remove_an_item_from_list(p_list_info, p_list);
+    gatt_free_hdl_buffer(p_list);
+
+    return(TRUE);
+}
+
+/*******************************************************************************
+**
+** Function         GATTS_StartService
+**
+** Description      This function is called to start a service with GATT
+**
+** Parameter        gatt_if : service handle.
+**                  p_cback       : application service callback functions.
+**                  sup_transport : supported transport(s) for this primary service
+**
+** return           GATT_SUCCESS if sucessfully started; otherwise error code.
+**
+*******************************************************************************/
+tGATT_STATUS GATTS_StartService (tGATT_IF gatt_if, UINT16 service_handle,
+                                 tGATT_TRANSPORT sup_transport)
+{
+    tGATT_SR_REG            *p_sreg;
+    tGATT_HDL_LIST_ELEM      *p_list=NULL;
+    UINT8                    i_sreg;
+    tBT_UUID                *p_uuid;
+    tGATT_REG              *p_reg = gatt_get_regcb(gatt_if);
+
+    tGATTS_PENDING_NEW_SRV_START *p_buf;
+
+    GATT_TRACE_API ("GATTS_StartService");
+
+    if (p_reg == NULL)
+    {
+        /* Not found  */
+        GATT_TRACE_ERROR ("Applicaiton not found ");
+        return GATT_NOT_FOUND;
+    }
+
+    if ((p_list = gatt_find_hdl_buffer_by_handle(service_handle)) == NULL)
+    {
+        /* Not found  */
+        GATT_TRACE_ERROR ("no service found");
+        return GATT_NOT_FOUND;
+    }
+
+    if (gatt_sr_find_i_rcb_by_app_id (&p_list->asgn_range.app_uuid128,
+                                      &p_list->asgn_range.svc_uuid,
+                                      p_list->asgn_range.svc_inst) != GATT_MAX_SR_PROFILES)
+    {
+        GATT_TRACE_ERROR ("Duplicate Service start - Service already started");
+        return GATT_SERVICE_STARTED;
+    }
+
+    /*this is a new application servoce start */
+    if ((i_sreg = gatt_sr_alloc_rcb(p_list)) ==  GATT_MAX_SR_PROFILES)
+    {
+        GATT_TRACE_ERROR ("GATTS_StartService: no free server registration block");
+        return GATT_NO_RESOURCES;
+    }
+
+    p_sreg = &gatt_cb.sr_reg[i_sreg];
+    p_sreg->gatt_if = gatt_if;
+
+    switch (sup_transport)
+    {
+        case GATT_TRANSPORT_BR_EDR:
+        case GATT_TRANSPORT_LE_BR_EDR:
+            if (p_sreg->type == GATT_UUID_PRI_SERVICE)
+            {
+                p_uuid = gatts_get_service_uuid (p_sreg->p_db);
+
+                p_sreg->sdp_handle = gatt_add_sdp_record(p_uuid, p_sreg->s_hdl, p_sreg->e_hdl);
+            }
+            break;
+        default:
+            break;
+    }
+
+    gatts_update_srv_list_elem(i_sreg, p_sreg->s_hdl,
+                               p_list->asgn_range.is_primary);
+
+    gatt_add_a_srv_to_list(&gatt_cb.srv_list_info, &gatt_cb.srv_list[i_sreg]);
+
+    GATT_TRACE_DEBUG ("allocated i_sreg=%d ",i_sreg);
+
+    GATT_TRACE_DEBUG ("s_hdl=%d e_hdl=%d type=0x%x svc_inst=%d sdp_hdl=0x%x",
+                       p_sreg->s_hdl,p_sreg->e_hdl,
+                       p_sreg->type,  p_sreg->service_instance,
+                       p_sreg->sdp_handle);
+
+
+    if ( (p_buf = gatt_sr_is_new_srv_chg(&p_list->asgn_range.app_uuid128,
+                                         &p_list->asgn_range.svc_uuid,
+                                         p_list->asgn_range.svc_inst)) != NULL)
+    {
+        gatt_proc_srv_chg();
+        /* remove the new service element after the srv changed processing is completed*/
+
+        osi_free(fixed_queue_try_remove_from_queue(gatt_cb.pending_new_srv_start_q, p_buf));
+    }
+    return GATT_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         GATTS_StopService
+**
+** Description      This function is called to stop a service
+**
+** Parameter         service_handle : this is the start handle of a service
+**
+** Returns          None.
+**
+*******************************************************************************/
+void GATTS_StopService (UINT16 service_handle)
+{
+    UINT8           ii = gatt_sr_find_i_rcb_by_handle(service_handle);
+
+    GATT_TRACE_API("GATTS_StopService %u", service_handle);
+
+    /* Index 0 is reserved for GATT, and is never stopped */
+    if ( (ii > 0) && (ii < GATT_MAX_SR_PROFILES) && (gatt_cb.sr_reg[ii].in_use) )
+    {
+        if (gatt_cb.sr_reg[ii].sdp_handle)
+        {
+            SDP_DeleteRecord(gatt_cb.sr_reg[ii].sdp_handle);
+        }
+        gatt_remove_a_srv_from_list(&gatt_cb.srv_list_info, &gatt_cb.srv_list[ii]);
+        gatt_cb.srv_list[ii].in_use = FALSE;
+        memset (&gatt_cb.sr_reg[ii], 0, sizeof(tGATT_SR_REG));
+    }
+    else
+    {
+        GATT_TRACE_ERROR("GATTS_StopService service_handle: %u is not in use", service_handle);
+    }
+}
+/*******************************************************************************
+**
+** Function         GATTs_HandleValueIndication
+**
+** Description      This function sends a handle value indication to a client.
+**
+** Parameter        conn_id: connection identifier.
+**                  attr_handle: Attribute handle of this handle value indication.
+**                  val_len: Length of the indicated attribute value.
+**                  p_val: Pointer to the indicated attribute value data.
+**
+** Returns          GATT_SUCCESS if sucessfully sent or queued; otherwise error code.
+**
+*******************************************************************************/
+tGATT_STATUS GATTS_HandleValueIndication (UINT16 conn_id,  UINT16 attr_handle, UINT16 val_len, UINT8 *p_val)
+{
+    tGATT_STATUS    cmd_status = GATT_NO_RESOURCES;
+
+    tGATT_VALUE      indication;
+    BT_HDR          *p_msg;
+    tGATT_VALUE     *p_buf;
+    tGATT_IF         gatt_if = GATT_GET_GATT_IF(conn_id);
+    UINT8           tcb_idx = GATT_GET_TCB_IDX(conn_id);
+    tGATT_REG       *p_reg = gatt_get_regcb(gatt_if);
+    tGATT_TCB       *p_tcb = gatt_get_tcb_by_idx(tcb_idx);
+
+
+    GATT_TRACE_API ("GATTS_HandleValueIndication");
+    if ( (p_reg == NULL) || (p_tcb == NULL))
+    {
+        GATT_TRACE_ERROR ("GATTS_HandleValueIndication Unknown  conn_id: %u ", conn_id);
+        return(tGATT_STATUS) GATT_INVALID_CONN_ID;
+    }
+
+    if (! GATT_HANDLE_IS_VALID (attr_handle))
+        return GATT_ILLEGAL_PARAMETER;
+
+    indication.conn_id  = conn_id;
+    indication.handle   = attr_handle;
+    indication.len      = val_len;
+    memcpy (indication.value, p_val, val_len);
+    indication.auth_req = GATT_AUTH_REQ_NONE;
+
+    if (GATT_HANDLE_IS_VALID(p_tcb->indicate_handle))
+    {
+        GATT_TRACE_DEBUG ("Add a pending indication");
+        if ((p_buf = gatt_add_pending_ind(p_tcb, &indication)) !=NULL)
+        {
+            cmd_status = GATT_SUCCESS;
+        }
+        else
+        {
+            cmd_status = GATT_NO_RESOURCES;
+        }
+    }
+    else
+    {
+
+        if ( (p_msg = attp_build_sr_msg (p_tcb, GATT_HANDLE_VALUE_IND, (tGATT_SR_MSG *)&indication)) != NULL)
+        {
+            cmd_status = attp_send_sr_msg (p_tcb, p_msg);
+
+            if (cmd_status == GATT_SUCCESS || cmd_status == GATT_CONGESTED)
+            {
+                p_tcb->indicate_handle = indication.handle;
+                gatt_start_conf_timer(p_tcb);
+            }
+        }
+    }
+    return cmd_status;
+}
+
+/*******************************************************************************
+**
+** Function         GATTS_HandleValueNotification
+**
+** Description      This function sends a handle value notification to a client.
+**
+** Parameter        conn_id: connection identifier.
+**                  attr_handle: Attribute handle of this handle value indication.
+**                  val_len: Length of the indicated attribute value.
+**                  p_val: Pointer to the indicated attribute value data.
+**
+** Returns          GATT_SUCCESS if sucessfully sent; otherwise error code.
+**
+*******************************************************************************/
+tGATT_STATUS GATTS_HandleValueNotification (UINT16 conn_id, UINT16 attr_handle,
+                                            UINT16 val_len, UINT8 *p_val)
+{
+    tGATT_STATUS    cmd_sent = GATT_ILLEGAL_PARAMETER;
+    BT_HDR          *p_buf;
+    tGATT_VALUE     notif;
+    tGATT_IF         gatt_if = GATT_GET_GATT_IF(conn_id);
+    UINT8           tcb_idx = GATT_GET_TCB_IDX(conn_id);
+    tGATT_REG       *p_reg = gatt_get_regcb(gatt_if);
+    tGATT_TCB       *p_tcb = gatt_get_tcb_by_idx(tcb_idx);
+
+    GATT_TRACE_API ("GATTS_HandleValueNotification");
+
+    if ( (p_reg == NULL) || (p_tcb == NULL))
+    {
+        GATT_TRACE_ERROR ("GATTS_HandleValueNotification Unknown  conn_id: %u ", conn_id);
+        return(tGATT_STATUS) GATT_INVALID_CONN_ID;
+    }
+
+    if (GATT_HANDLE_IS_VALID (attr_handle))
+    {
+        notif.handle    = attr_handle;
+        notif.len       = val_len;
+        memcpy (notif.value, p_val, val_len);
+        notif.auth_req = GATT_AUTH_REQ_NONE;;
+
+        if ((p_buf = attp_build_sr_msg (p_tcb, GATT_HANDLE_VALUE_NOTIF, (tGATT_SR_MSG *)&notif))
+                   != NULL)
+        {
+            cmd_sent = attp_send_sr_msg (p_tcb, p_buf);
+        }
+        else
+            cmd_sent = GATT_NO_RESOURCES;
+    }
+    return cmd_sent;
+}
+
+/*******************************************************************************
+**
+** Function         GATTS_SendRsp
+**
+** Description      This function sends the server response to client.
+**
+** Parameter        conn_id: connection identifier.
+**                  trans_id: transaction id
+**                  status: response status
+**                  p_msg: pointer to message parameters structure.
+**
+** Returns          GATT_SUCCESS if sucessfully sent; otherwise error code.
+**
+*******************************************************************************/
+tGATT_STATUS GATTS_SendRsp (UINT16 conn_id,  UINT32 trans_id,
+                            tGATT_STATUS status, tGATTS_RSP *p_msg)
+{
+    tGATT_STATUS cmd_sent = GATT_ILLEGAL_PARAMETER;
+    tGATT_IF         gatt_if = GATT_GET_GATT_IF(conn_id);
+    UINT8           tcb_idx = GATT_GET_TCB_IDX(conn_id);
+    tGATT_REG       *p_reg = gatt_get_regcb(gatt_if);
+    tGATT_TCB       *p_tcb = gatt_get_tcb_by_idx(tcb_idx);
+
+    GATT_TRACE_API ("GATTS_SendRsp: conn_id: %u  trans_id: %u  Status: 0x%04x",
+                     conn_id, trans_id, status);
+
+    if ( (p_reg == NULL) || (p_tcb == NULL))
+    {
+        GATT_TRACE_ERROR ("GATTS_SendRsp Unknown  conn_id: %u ", conn_id);
+        return(tGATT_STATUS) GATT_INVALID_CONN_ID;
+    }
+
+    if (p_tcb->sr_cmd.trans_id != trans_id)
+    {
+        GATT_TRACE_ERROR ("GATTS_SendRsp conn_id: %u  waiting for op_code = %02x",
+                           conn_id, p_tcb->sr_cmd.op_code);
+
+        return(GATT_WRONG_STATE);
+    }
+    /* Process App response */
+    cmd_sent = gatt_sr_process_app_rsp (p_tcb,  gatt_if, trans_id, p_tcb->sr_cmd.op_code, status, p_msg);
+
+    return cmd_sent;
+}
+
+/*******************************************************************************/
+/* GATT Profile Srvr Functions */
+/*******************************************************************************/
+
+/*******************************************************************************/
+/*                                                                             */
+/*                   GATT CLIENT APIs                                          */
+/*                                                                             */
+/*******************************************************************************/
+
+
+/*******************************************************************************
+**
+** Function         GATTC_ConfigureMTU
+**
+** Description      This function is called to configure the ATT MTU size.
+**
+** Parameters       conn_id: connection identifier.
+**                  mtu    - attribute MTU size..
+**
+** Returns          GATT_SUCCESS if command started successfully.
+**
+*******************************************************************************/
+tGATT_STATUS GATTC_ConfigureMTU (UINT16 conn_id, UINT16 mtu)
+{
+    UINT8           ret = GATT_NO_RESOURCES;
+    tGATT_IF        gatt_if=GATT_GET_GATT_IF(conn_id);
+    UINT8           tcb_idx = GATT_GET_TCB_IDX(conn_id);
+    tGATT_TCB       *p_tcb = gatt_get_tcb_by_idx(tcb_idx);
+    tGATT_REG       *p_reg = gatt_get_regcb(gatt_if);
+
+    tGATT_CLCB    *p_clcb;
+
+    GATT_TRACE_API ("GATTC_ConfigureMTU conn_id=%d mtu=%d", conn_id, mtu );
+
+    /* Validate that the link is BLE, not BR/EDR */
+    if (p_tcb->transport != BT_TRANSPORT_LE)
+    {
+        return GATT_ERROR;
+    }
+
+    if ( (p_tcb == NULL) || (p_reg==NULL) || (mtu < GATT_DEF_BLE_MTU_SIZE) || (mtu > GATT_MAX_MTU_SIZE))
+    {
+        return GATT_ILLEGAL_PARAMETER;
+    }
+
+    if (gatt_is_clcb_allocated(conn_id))
+    {
+        GATT_TRACE_ERROR("GATTC_ConfigureMTU GATT_BUSY conn_id = %d", conn_id);
+        return GATT_BUSY;
+    }
+
+    if ((p_clcb = gatt_clcb_alloc(conn_id)) != NULL)
+    {
+        p_clcb->p_tcb->payload_size = mtu;
+        p_clcb->operation = GATTC_OPTYPE_CONFIG;
+
+        ret = attp_send_cl_msg (p_clcb->p_tcb, p_clcb->clcb_idx, GATT_REQ_MTU, (tGATT_CL_MSG *)&mtu);
+    }
+
+    return ret;
+}
+
+/*******************************************************************************
+**
+** Function         GATTC_Discover
+**
+** Description      This function is called to do a discovery procedure on ATT server.
+**
+** Parameters       conn_id: connection identifier.
+**                  disc_type:discovery type.
+**                  p_param: parameters of discovery requirement.
+**
+** Returns          GATT_SUCCESS if command received/sent successfully.
+**
+*******************************************************************************/
+tGATT_STATUS GATTC_Discover (UINT16 conn_id, tGATT_DISC_TYPE disc_type,
+                             tGATT_DISC_PARAM *p_param)
+{
+    tGATT_STATUS    status = GATT_SUCCESS;
+    tGATT_CLCB      *p_clcb;
+    tGATT_IF        gatt_if=GATT_GET_GATT_IF(conn_id);
+    UINT8           tcb_idx = GATT_GET_TCB_IDX(conn_id);
+    tGATT_TCB       *p_tcb = gatt_get_tcb_by_idx(tcb_idx);
+    tGATT_REG       *p_reg = gatt_get_regcb(gatt_if);
+
+
+    GATT_TRACE_API ("GATTC_Discover conn_id=%d disc_type=%d",conn_id, disc_type);
+
+    if ( (p_tcb == NULL) || (p_reg==NULL) ||(p_param == NULL) ||
+         (disc_type >= GATT_DISC_MAX))
+    {
+        GATT_TRACE_ERROR("GATTC_Discover Illegal param: disc_type %d conn_id = %d", disc_type, conn_id);
+        return GATT_ILLEGAL_PARAMETER;
+    }
+
+
+    if (gatt_is_clcb_allocated(conn_id))
+    {
+        GATT_TRACE_ERROR("GATTC_Discover GATT_BUSY conn_id = %d", conn_id);
+        return GATT_BUSY;
+    }
+
+
+    if ((p_clcb = gatt_clcb_alloc(conn_id)) != NULL )
+    {
+        if (!GATT_HANDLE_IS_VALID(p_param->s_handle) ||
+            !GATT_HANDLE_IS_VALID(p_param->e_handle) ||
+            /* search by type does not have a valid UUID param */
+            (disc_type == GATT_DISC_SRVC_BY_UUID &&
+             p_param->service.len == 0))
+        {
+            gatt_clcb_dealloc(p_clcb);
+            return GATT_ILLEGAL_PARAMETER;
+        }
+
+        p_clcb->operation  = GATTC_OPTYPE_DISCOVERY;
+        p_clcb->op_subtype = disc_type;
+        p_clcb->s_handle   = p_param->s_handle;
+        p_clcb->e_handle   = p_param->e_handle;
+        p_clcb->uuid       = p_param->service;
+
+        gatt_act_discovery(p_clcb);
+    }
+    else
+    {
+        status = GATT_NO_RESOURCES;
+    }
+    return status;
+}
+
+/*******************************************************************************
+**
+** Function         GATTC_Read
+**
+** Description      This function is called to read the value of an attribute from
+**                  the server.
+**
+** Parameters       conn_id: connection identifier.
+**                  type    - attribute read type.
+**                  p_read  - read operation parameters.
+**
+** Returns          GATT_SUCCESS if command started successfully.
+**
+*******************************************************************************/
+tGATT_STATUS GATTC_Read (UINT16 conn_id, tGATT_READ_TYPE type, tGATT_READ_PARAM *p_read)
+{
+    tGATT_STATUS status = GATT_SUCCESS;
+    tGATT_CLCB          *p_clcb;
+    tGATT_IF            gatt_if=GATT_GET_GATT_IF(conn_id);
+    UINT8               tcb_idx = GATT_GET_TCB_IDX(conn_id);
+    tGATT_TCB           *p_tcb = gatt_get_tcb_by_idx(tcb_idx);
+    tGATT_REG           *p_reg = gatt_get_regcb(gatt_if);
+
+
+    GATT_TRACE_API ("GATTC_Read conn_id=%d type=%d", conn_id, type);
+
+    if ( (p_tcb == NULL) || (p_reg==NULL) || (p_read == NULL) || ((type >= GATT_READ_MAX) || (type == 0)))
+    {
+        GATT_TRACE_ERROR("GATT_Read Illegal param: conn_id %d, type 0%d,", conn_id, type);
+        return GATT_ILLEGAL_PARAMETER;
+    }
+
+    if (gatt_is_clcb_allocated(conn_id))
+    {
+        GATT_TRACE_ERROR("GATTC_Read GATT_BUSY conn_id = %d", conn_id);
+        return GATT_BUSY;
+    }
+
+    if ( (p_clcb = gatt_clcb_alloc(conn_id)) != NULL  )
+    {
+        p_clcb->operation = GATTC_OPTYPE_READ;
+        p_clcb->op_subtype = type;
+        p_clcb->auth_req = p_read->by_handle.auth_req;
+        p_clcb->counter = 0;
+
+        switch (type)
+        {
+            case GATT_READ_BY_TYPE:
+            case GATT_READ_CHAR_VALUE:
+                p_clcb->s_handle = p_read->service.s_handle;
+                p_clcb->e_handle = p_read->service.e_handle;
+                memcpy(&p_clcb->uuid, &p_read->service.uuid, sizeof(tBT_UUID));
+                break;
+            case GATT_READ_MULTIPLE:
+                p_clcb->s_handle = 0;
+                /* copy multiple handles in CB */
+                tGATT_READ_MULTI *p_read_multi =
+                    (tGATT_READ_MULTI *)osi_malloc(sizeof(tGATT_READ_MULTI));
+                p_clcb->p_attr_buf = (UINT8*)p_read_multi;
+                memcpy(p_read_multi, &p_read->read_multiple, sizeof(tGATT_READ_MULTI));
+            case GATT_READ_BY_HANDLE:
+            case GATT_READ_PARTIAL:
+                memset(&p_clcb->uuid, 0, sizeof(tBT_UUID));
+                p_clcb->s_handle = p_read->by_handle.handle;
+
+                if (type == GATT_READ_PARTIAL)
+                {
+                    p_clcb->counter = p_read->partial.offset;
+                }
+
+                break;
+            default:
+                break;
+        }
+        /* start security check */
+        if (gatt_security_check_start(p_clcb) == FALSE)
+        {
+            status = GATT_NO_RESOURCES;
+            gatt_clcb_dealloc(p_clcb);
+        }
+    }
+    else
+    {
+        status = GATT_NO_RESOURCES;
+    }
+    return status;
+}
+
+/*******************************************************************************
+**
+** Function         GATTC_Write
+**
+** Description      This function is called to write the value of an attribute to
+**                  the server.
+**
+** Parameters       conn_id: connection identifier.
+**                  type    - attribute write type.
+**                  p_write  - write operation parameters.
+**
+** Returns          GATT_SUCCESS if command started successfully.
+**
+*******************************************************************************/
+tGATT_STATUS GATTC_Write (UINT16 conn_id, tGATT_WRITE_TYPE type, tGATT_VALUE *p_write)
+{
+    tGATT_STATUS status = GATT_SUCCESS;
+    tGATT_CLCB      *p_clcb;
+    tGATT_VALUE     *p;
+    tGATT_IF        gatt_if=GATT_GET_GATT_IF(conn_id);
+    UINT8           tcb_idx = GATT_GET_TCB_IDX(conn_id);
+    tGATT_TCB       *p_tcb = gatt_get_tcb_by_idx(tcb_idx);
+    tGATT_REG       *p_reg = gatt_get_regcb(gatt_if);
+
+    if ( (p_tcb == NULL) || (p_reg==NULL) || (p_write == NULL) ||
+         ((type != GATT_WRITE) && (type != GATT_WRITE_PREPARE) && (type != GATT_WRITE_NO_RSP)) )
+    {
+        GATT_TRACE_ERROR("GATT_Write Illegal param: conn_id %d, type 0%d,", conn_id, type);
+        return GATT_ILLEGAL_PARAMETER;
+    }
+
+    if (gatt_is_clcb_allocated(conn_id))
+    {
+        GATT_TRACE_ERROR("GATTC_Write GATT_BUSY conn_id = %d", conn_id);
+        return GATT_BUSY;
+    }
+
+    if ((p_clcb = gatt_clcb_alloc(conn_id)) != NULL )
+    {
+        p_clcb->operation  = GATTC_OPTYPE_WRITE;
+        p_clcb->op_subtype = type;
+        p_clcb->auth_req = p_write->auth_req;
+
+        p_clcb->p_attr_buf = (UINT8 *)osi_malloc(sizeof(tGATT_VALUE));
+        memcpy(p_clcb->p_attr_buf, (void *)p_write, sizeof(tGATT_VALUE));
+
+        p = (tGATT_VALUE *)p_clcb->p_attr_buf;
+        if (type == GATT_WRITE_PREPARE) {
+            p_clcb->start_offset = p_write->offset;
+            p->offset = 0;
+        }
+
+        if (gatt_security_check_start(p_clcb) == FALSE) {
+            status = GATT_NO_RESOURCES;
+        }
+
+        if (status == GATT_NO_RESOURCES)
+            gatt_clcb_dealloc(p_clcb);
+    } else {
+        status = GATT_NO_RESOURCES;
+    }
+    return status;
+}
+
+
+/*******************************************************************************
+**
+** Function         GATTC_ExecuteWrite
+**
+** Description      This function is called to send an Execute write request to
+**                  the server.
+**
+** Parameters       conn_id: connection identifier.
+**                  is_execute - to execute or cancel the prepare write requet(s)
+**
+** Returns          GATT_SUCCESS if command started successfully.
+**
+*******************************************************************************/
+tGATT_STATUS GATTC_ExecuteWrite (UINT16 conn_id, BOOLEAN is_execute)
+{
+    tGATT_STATUS status = GATT_SUCCESS;
+    tGATT_CLCB      *p_clcb;
+    tGATT_EXEC_FLAG flag;
+    tGATT_IF        gatt_if=GATT_GET_GATT_IF(conn_id);
+    UINT8           tcb_idx = GATT_GET_TCB_IDX(conn_id);
+    tGATT_TCB       *p_tcb = gatt_get_tcb_by_idx(tcb_idx);
+    tGATT_REG       *p_reg = gatt_get_regcb(gatt_if);
+
+    GATT_TRACE_API ("GATTC_ExecuteWrite conn_id=%d is_execute=%d", conn_id, is_execute);
+
+    if ( (p_tcb == NULL) || (p_reg==NULL) )
+    {
+        GATT_TRACE_ERROR("GATTC_ExecuteWrite Illegal param: conn_id %d", conn_id);
+        return GATT_ILLEGAL_PARAMETER;
+    }
+
+    if (gatt_is_clcb_allocated(conn_id))
+    {
+        GATT_TRACE_ERROR("GATTC_Write GATT_BUSY conn_id = %d", conn_id);
+        return GATT_BUSY;
+    }
+
+    if ((p_clcb = gatt_clcb_alloc(conn_id)) != NULL)
+    {
+        p_clcb->operation  = GATTC_OPTYPE_EXE_WRITE;
+        flag = is_execute ? GATT_PREP_WRITE_EXEC : GATT_PREP_WRITE_CANCEL;
+        gatt_send_queue_write_cancel (p_clcb->p_tcb, p_clcb, flag);
+    }
+    else
+    {
+        GATT_TRACE_ERROR("Unable to allocate client CB for conn_id %d ", conn_id);
+        status = GATT_NO_RESOURCES;
+    }
+    return status;
+}
+
+/*******************************************************************************
+**
+** Function         GATTC_SendHandleValueConfirm
+**
+** Description      This function is called to send a handle value confirmation
+**                  as response to a handle value notification from server.
+**
+** Parameters       conn_id: connection identifier.
+**                  handle: the handle of the attribute confirmation.
+**
+** Returns          GATT_SUCCESS if command started successfully.
+**
+*******************************************************************************/
+tGATT_STATUS GATTC_SendHandleValueConfirm (UINT16 conn_id, UINT16 handle)
+{
+    tGATT_STATUS    ret = GATT_ILLEGAL_PARAMETER;
+    tGATT_TCB     *p_tcb=gatt_get_tcb_by_idx(GATT_GET_TCB_IDX(conn_id));
+
+    GATT_TRACE_API ("GATTC_SendHandleValueConfirm conn_id=%d handle=0x%x", conn_id, handle);
+
+    if (p_tcb)
+    {
+        if (p_tcb->ind_count > 0 )
+        {
+            alarm_cancel(p_tcb->ind_ack_timer);
+
+            GATT_TRACE_DEBUG ("notif_count=%d ", p_tcb->ind_count);
+            /* send confirmation now */
+            ret = attp_send_cl_msg(p_tcb, 0, GATT_HANDLE_VALUE_CONF, (tGATT_CL_MSG *)&handle);
+
+            p_tcb->ind_count = 0;
+
+        }
+        else
+        {
+            GATT_TRACE_DEBUG ("GATTC_SendHandleValueConfirm - conn_id: %u - ignored not waiting for indicaiton ack", conn_id);
+            ret = GATT_SUCCESS;
+        }
+    }
+    else
+    {
+        GATT_TRACE_ERROR ("GATTC_SendHandleValueConfirm - Unknown conn_id: %u", conn_id);
+    }
+    return ret;
+}
+
+
+/*******************************************************************************/
+/*                                                                             */
+/*                   GATT  APIs                                                */
+/*                                                                             */
+/*******************************************************************************/
+/*******************************************************************************
+**
+** Function         GATT_SetIdleTimeout
+**
+** Description      This function (common to both client and server) sets the idle
+**                  timeout for a tansport connection
+**
+** Parameter        bd_addr:   target device bd address.
+**                  idle_tout: timeout value in seconds.
+**
+** Returns          void
+**
+*******************************************************************************/
+void GATT_SetIdleTimeout (BD_ADDR bd_addr, UINT16 idle_tout, tBT_TRANSPORT transport)
+{
+    tGATT_TCB       *p_tcb;
+    BOOLEAN         status = FALSE;
+
+    if ((p_tcb = gatt_find_tcb_by_addr (bd_addr, transport)) != NULL)
+    {
+        if (p_tcb->att_lcid == L2CAP_ATT_CID)
+        {
+            status = L2CA_SetFixedChannelTout (bd_addr, L2CAP_ATT_CID, idle_tout);
+
+            if (idle_tout == GATT_LINK_IDLE_TIMEOUT_WHEN_NO_APP)
+                L2CA_SetIdleTimeoutByBdAddr(p_tcb->peer_bda,
+                                            GATT_LINK_IDLE_TIMEOUT_WHEN_NO_APP, BT_TRANSPORT_LE);
+        }
+        else
+        {
+            status = L2CA_SetIdleTimeout (p_tcb->att_lcid, idle_tout, FALSE);
+        }
+    }
+
+    GATT_TRACE_API ("GATT_SetIdleTimeout idle_tout=%d status=%d(1-OK 0-not performed)",
+                    idle_tout, status);
+}
+
+
+/*******************************************************************************
+**
+** Function         GATT_Register
+**
+** Description      This function is called to register an  application
+**                  with GATT
+**
+** Parameter        p_app_uuid128: Application UUID
+**                  p_cb_info: callback functions.
+**
+** Returns          0 for error, otherwise the index of the client registered with GATT
+**
+*******************************************************************************/
+tGATT_IF GATT_Register (tBT_UUID *p_app_uuid128, tGATT_CBACK *p_cb_info)
+{
+    tGATT_REG    *p_reg;
+    UINT8        i_gatt_if=0;
+    tGATT_IF     gatt_if=0;
+
+    GATT_TRACE_API ("%s", __func__);
+    gatt_dbg_display_uuid(*p_app_uuid128);
+
+    for (i_gatt_if = 0, p_reg = gatt_cb.cl_rcb; i_gatt_if < GATT_MAX_APPS; i_gatt_if++, p_reg++)
+    {
+        if (p_reg->in_use  && !memcmp(p_app_uuid128->uu.uuid128, p_reg->app_uuid128.uu.uuid128, LEN_UUID_128))
+        {
+            GATT_TRACE_ERROR("application already registered.");
+            return 0;
+        }
+    }
+
+    for (i_gatt_if = 0, p_reg = gatt_cb.cl_rcb; i_gatt_if < GATT_MAX_APPS; i_gatt_if++, p_reg++)
+    {
+        if (!p_reg->in_use)
+        {
+            memset(p_reg, 0 , sizeof(tGATT_REG));
+            i_gatt_if++;              /* one based number */
+            p_reg->app_uuid128 =  *p_app_uuid128;
+            gatt_if            =
+            p_reg->gatt_if     = (tGATT_IF)i_gatt_if;
+            p_reg->app_cb      = *p_cb_info;
+            p_reg->in_use      = TRUE;
+
+            GATT_TRACE_API ("%s: allocated gatt_if=%d", __func__, gatt_if);
+            return gatt_if;
+        }
+    }
+
+    GATT_TRACE_ERROR ("%s: can't Register GATT client, MAX client reached!", __func__);
+    return 0;
+}
+
+
+/*******************************************************************************
+**
+** Function         GATT_Deregister
+**
+** Description      This function deregistered the application from GATT.
+**
+** Parameters       gatt_if: applicaiton interface.
+**
+** Returns          None.
+**
+*******************************************************************************/
+void GATT_Deregister (tGATT_IF gatt_if)
+{
+    tGATT_REG       *p_reg = gatt_get_regcb(gatt_if);
+    tGATT_TCB       *p_tcb;
+    tGATT_CLCB       *p_clcb;
+    UINT8           i, ii, j;
+    tGATT_SR_REG    *p_sreg;
+
+    GATT_TRACE_API ("GATT_Deregister gatt_if=%d", gatt_if);
+    /* Index 0 is GAP and is never deregistered */
+    if ( (gatt_if == 0) || (p_reg == NULL) )
+    {
+        GATT_TRACE_ERROR ("GATT_Deregister with invalid gatt_if: %u", gatt_if);
+        return;
+    }
+
+    /* stop all services  */
+    /* todo an applcaiton can not be deregistered if its services is also used by other application
+      deregisteration need to bed performed in an orderly fashion
+      no check for now */
+
+    for (ii = 0, p_sreg = gatt_cb.sr_reg; ii < GATT_MAX_SR_PROFILES; ii++, p_sreg++)
+    {
+        if (p_sreg->in_use && (p_sreg->gatt_if == gatt_if))
+        {
+            GATTS_StopService(p_sreg->s_hdl);
+        }
+    }
+
+    /* free all services db buffers if owned by this application */
+    gatt_free_srvc_db_buffer_app_id(&p_reg->app_uuid128);
+
+    /* When an application deregisters, check remove the link associated with the app */
+
+    for (i=0, p_tcb = gatt_cb.tcb; i < GATT_MAX_PHY_CHANNEL; i++, p_tcb++)
+    {
+        if (p_tcb->in_use)
+        {
+            if (gatt_get_ch_state(p_tcb) != GATT_CH_CLOSE)
+            {
+                gatt_update_app_use_link_flag(gatt_if, p_tcb,  FALSE, TRUE);
+            }
+
+            for (j = 0, p_clcb= &gatt_cb.clcb[j]; j < GATT_CL_MAX_LCB; j++, p_clcb++)
+            {
+                if (p_clcb->in_use &&
+                    (p_clcb->p_reg->gatt_if == gatt_if) &&
+                    (p_clcb->p_tcb->tcb_idx == p_tcb->tcb_idx))
+                {
+                    alarm_cancel(p_clcb->gatt_rsp_timer_ent);
+                    gatt_clcb_dealloc (p_clcb);
+                    break;
+                }
+            }
+        }
+    }
+
+    gatt_deregister_bgdev_list(gatt_if);
+    /* update the listen mode */
+#if (defined(BLE_PERIPHERAL_MODE_SUPPORT) && (BLE_PERIPHERAL_MODE_SUPPORT == TRUE))
+    GATT_Listen(gatt_if, FALSE, NULL);
+#endif
+
+    memset (p_reg, 0, sizeof(tGATT_REG));
+}
+
+
+/*******************************************************************************
+**
+** Function         GATT_StartIf
+**
+** Description      This function is called after registration to start receiving
+**                  callbacks for registered interface.  Function may call back
+**                  with connection status and queued notifications
+**
+** Parameter        gatt_if: applicaiton interface.
+**
+** Returns          None.
+**
+*******************************************************************************/
+void GATT_StartIf (tGATT_IF gatt_if)
+{
+    tGATT_REG   *p_reg;
+    tGATT_TCB   *p_tcb;
+    BD_ADDR     bda;
+    UINT8       start_idx, found_idx;
+    UINT16      conn_id;
+    tGATT_TRANSPORT transport ;
+
+    GATT_TRACE_API ("GATT_StartIf gatt_if=%d", gatt_if);
+    if ((p_reg = gatt_get_regcb(gatt_if)) != NULL)
+    {
+        start_idx = 0;
+        while (gatt_find_the_connected_bda(start_idx, bda, &found_idx, &transport))
+        {
+            p_tcb = gatt_find_tcb_by_addr(bda, transport);
+            if (p_reg->app_cb.p_conn_cb && p_tcb)
+            {
+                conn_id = GATT_CREATE_CONN_ID(p_tcb->tcb_idx, gatt_if);
+                (*p_reg->app_cb.p_conn_cb)(gatt_if, bda, conn_id, TRUE, 0, transport);
+            }
+            start_idx = ++found_idx;
+        }
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         GATT_Connect
+**
+** Description      This function initiate a connecttion to a remote device on GATT
+**                  channel.
+**
+** Parameters       gatt_if: applicaiton interface
+**                  bd_addr: peer device address.
+**                  is_direct: is a direct conenection or a background auto connection
+**
+** Returns          TRUE if connection started; FALSE if connection start failure.
+**
+*******************************************************************************/
+BOOLEAN GATT_Connect (tGATT_IF gatt_if, BD_ADDR bd_addr, BOOLEAN is_direct, tBT_TRANSPORT transport)
+{
+    tGATT_REG    *p_reg;
+    BOOLEAN status = FALSE;
+
+    GATT_TRACE_API ("GATT_Connect gatt_if=%d", gatt_if);
+
+    /* Make sure app is registered */
+    if ((p_reg = gatt_get_regcb(gatt_if)) == NULL)
+    {
+        GATT_TRACE_ERROR("GATT_Connect - gatt_if =%d is not registered", gatt_if);
+        return(FALSE);
+    }
+
+    if (is_direct)
+        status = gatt_act_connect (p_reg, bd_addr, transport);
+    else
+    {
+        if (transport == BT_TRANSPORT_LE)
+        status = gatt_update_auto_connect_dev(gatt_if,TRUE, bd_addr, TRUE);
+        else
+        {
+            GATT_TRACE_ERROR("Unsupported transport for background connection");
+        }
+    }
+
+    return status;
+
+}
+
+/*******************************************************************************
+**
+** Function         GATT_CancelConnect
+**
+** Description      This function terminate the connection initaition to a remote
+**                  device on GATT channel.
+**
+** Parameters       gatt_if: client interface. If 0 used as unconditionally disconnect,
+**                          typically used for direct connection cancellation.
+**                  bd_addr: peer device address.
+**
+** Returns          TRUE if connection started; FALSE if connection start failure.
+**
+*******************************************************************************/
+BOOLEAN GATT_CancelConnect (tGATT_IF gatt_if, BD_ADDR bd_addr, BOOLEAN is_direct){
+    tGATT_REG     *p_reg;
+    tGATT_TCB     *p_tcb;
+    BOOLEAN       status = TRUE;
+    tGATT_IF      temp_gatt_if;
+    UINT8         start_idx, found_idx;
+
+    GATT_TRACE_API ("GATT_CancelConnect gatt_if=%d", gatt_if);
+
+    if ((gatt_if != 0) && ((p_reg = gatt_get_regcb(gatt_if)) == NULL))
+    {
+        GATT_TRACE_ERROR("GATT_CancelConnect - gatt_if =%d is not registered", gatt_if);
+        return(FALSE);
+    }
+
+    if (is_direct)
+    {
+        if (!gatt_if)
+        {
+            GATT_TRACE_DEBUG("GATT_CancelConnect - unconditional");
+            start_idx = 0;
+            /* only LE connection can be cancelled */
+            p_tcb = gatt_find_tcb_by_addr(bd_addr, BT_TRANSPORT_LE);
+            if (p_tcb && gatt_num_apps_hold_link(p_tcb))
+            {
+                while (status && gatt_find_app_hold_link(p_tcb, start_idx, &found_idx, &temp_gatt_if))
+                {
+                    status = gatt_cancel_open(temp_gatt_if, bd_addr);
+                    start_idx = ++found_idx;
+                }
+            }
+            else
+            {
+                GATT_TRACE_ERROR("GATT_CancelConnect - no app found");
+                status = FALSE;
+            }
+        }
+        else
+        {
+            status = gatt_cancel_open(gatt_if, bd_addr);
+        }
+    }
+    else
+    {
+        if (!gatt_if)
+        {
+            if (gatt_get_num_apps_for_bg_dev(bd_addr))
+            {
+                while (gatt_find_app_for_bg_dev(bd_addr, &temp_gatt_if))
+                    gatt_remove_bg_dev_for_app(temp_gatt_if, bd_addr);
+            }
+            else
+            {
+                GATT_TRACE_ERROR("GATT_CancelConnect -no app associated with the bg device for unconditional removal");
+                status = FALSE;
+            }
+        }
+        else
+        {
+            status = gatt_remove_bg_dev_for_app(gatt_if, bd_addr);
+        }
+    }
+
+    return status;
+}
+
+/*******************************************************************************
+**
+** Function         GATT_Disconnect
+**
+** Description      This function disconnect the GATT channel for this registered
+**                  application.
+**
+** Parameters       conn_id: connection identifier.
+**
+** Returns          GATT_SUCCESS if disconnected.
+**
+*******************************************************************************/
+tGATT_STATUS GATT_Disconnect (UINT16 conn_id)
+{
+    tGATT_STATUS    ret = GATT_ILLEGAL_PARAMETER;
+    tGATT_TCB       *p_tcb=NULL;
+    tGATT_IF        gatt_if=GATT_GET_GATT_IF(conn_id);
+    UINT8          tcb_idx = GATT_GET_TCB_IDX(conn_id);
+
+    GATT_TRACE_API ("GATT_Disconnect conn_id=%d ", conn_id);
+
+    p_tcb = gatt_get_tcb_by_idx(tcb_idx);
+
+    if (p_tcb)
+    {
+        gatt_update_app_use_link_flag(gatt_if, p_tcb, FALSE, TRUE);
+        ret = GATT_SUCCESS;
+    }
+    return ret;
+}
+
+
+/*******************************************************************************
+**
+** Function         GATT_GetConnectionInfor
+**
+** Description      This function use conn_id to find its associated BD address and applciation
+**                  interface
+**
+** Parameters        conn_id: connection id  (input)
+**                   p_gatt_if: applicaiton interface (output)
+**                   bd_addr: peer device address. (output)
+**
+** Returns          TRUE the ligical link information is found for conn_id
+**
+*******************************************************************************/
+BOOLEAN GATT_GetConnectionInfor(UINT16 conn_id, tGATT_IF *p_gatt_if, BD_ADDR bd_addr,
+                                tBT_TRANSPORT *p_transport)
+{
+
+    tGATT_IF        gatt_if = GATT_GET_GATT_IF(conn_id);
+    tGATT_REG       *p_reg = gatt_get_regcb(gatt_if);
+    UINT8           tcb_idx = GATT_GET_TCB_IDX(conn_id);
+    tGATT_TCB       *p_tcb= gatt_get_tcb_by_idx(tcb_idx);
+    BOOLEAN         status=FALSE;
+
+    GATT_TRACE_API ("GATT_GetConnectionInfor conn_id=%d", conn_id);
+
+    if (p_tcb && p_reg )
+    {
+        memcpy(bd_addr, p_tcb->peer_bda, BD_ADDR_LEN);
+        *p_gatt_if = gatt_if;
+        *p_transport = p_tcb->transport;
+        status = TRUE;
+    }
+    return status;
+}
+
+
+/*******************************************************************************
+**
+** Function         GATT_GetConnIdIfConnected
+**
+** Description      This function find the conn_id if the logical link for BD address
+**                  and applciation interface is connected
+**
+** Parameters        gatt_if: applicaiton interface (input)
+**                   bd_addr: peer device address. (input)
+**                   p_conn_id: connection id  (output)
+**                   transport: transport option
+**
+** Returns          TRUE the logical link is connected
+**
+*******************************************************************************/
+BOOLEAN GATT_GetConnIdIfConnected(tGATT_IF gatt_if, BD_ADDR bd_addr, UINT16 *p_conn_id,
+                                  tBT_TRANSPORT transport)
+{
+    tGATT_REG       *p_reg = gatt_get_regcb(gatt_if);
+    tGATT_TCB       *p_tcb= gatt_find_tcb_by_addr(bd_addr, transport);
+    BOOLEAN         status=FALSE;
+
+    if (p_reg && p_tcb && (gatt_get_ch_state(p_tcb) == GATT_CH_OPEN) )
+    {
+        *p_conn_id = GATT_CREATE_CONN_ID(p_tcb->tcb_idx, gatt_if);
+        status = TRUE;
+    }
+
+    GATT_TRACE_API ("GATT_GetConnIdIfConnected status=%d", status);
+    return status;
+}
+
+
+/*******************************************************************************
+**
+** Function         GATT_Listen
+**
+** Description      This function start or stop LE advertisement and listen for
+**                  connection.
+**
+** Parameters       gatt_if: applicaiton interface
+**                  p_bd_addr: listen for specific address connection, or NULL for
+**                             listen to all device connection.
+**                  start: start or stop listening.
+**
+** Returns          TRUE if advertisement is started; FALSE if adv start failure.
+**
+*******************************************************************************/
+BOOLEAN GATT_Listen (tGATT_IF gatt_if, BOOLEAN start, BD_ADDR_PTR bd_addr)
+{
+    tGATT_REG    *p_reg;
+
+    GATT_TRACE_API ("GATT_Listen gatt_if=%d", gatt_if);
+
+    /* Make sure app is registered */
+    if ((p_reg = gatt_get_regcb(gatt_if)) == NULL)
+    {
+        GATT_TRACE_ERROR("GATT_Listen - gatt_if =%d is not registered", gatt_if);
+        return(FALSE);
+    }
+
+    if (bd_addr != NULL)
+    {
+        gatt_update_auto_connect_dev(gatt_if,start, bd_addr, FALSE);
+    }
+    else
+    {
+        p_reg->listening = start ? GATT_LISTEN_TO_ALL : GATT_LISTEN_TO_NONE;
+    }
+
+    return gatt_update_listen_mode();
+}
+
+#ifdef BLUETOOTH_RTK
+/*******************************************************************************
+**
+** Function         GATT_RemoveLinkFlag
+**
+** Description      This function revome the GATT link flag for this registered
+**                  application.
+**
+** Parameters       conn_id: connection identifier.
+**
+** Returns          GATT_SUCCESS if removed.
+**
+*******************************************************************************/
+tGATT_STATUS GATT_RemoveLinkFlag (UINT16 conn_id)
+{
+    tGATT_STATUS    ret = GATT_ILLEGAL_PARAMETER;
+    tGATT_TCB       *p_tcb=NULL;
+    tGATT_IF        gatt_if=GATT_GET_GATT_IF(conn_id);
+    UINT8          tcb_idx = GATT_GET_TCB_IDX(conn_id);
+
+    GATT_TRACE_API ("GATT_RemoveLinkFlag conn_id=%d ", conn_id);
+
+    p_tcb = gatt_get_tcb_by_idx(tcb_idx);
+
+    if (p_tcb)
+    {
+        gatt_update_app_use_link_flag(gatt_if, p_tcb, FALSE, FALSE);
+        ret = GATT_SUCCESS;
+    }
+    return ret;
+}
+#endif
+#endif
+
diff --git a/rtkbt/code/bt/stack/gatt/gatt_attr.c b/rtkbt/code/bt/stack/gatt/gatt_attr.c
new file mode 100755
index 0000000..2425411
--- /dev/null
+++ b/rtkbt/code/bt/stack/gatt/gatt_attr.c
@@ -0,0 +1,491 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2008-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  this file contains the main GATT server attributes access request
+ *  handling functions.
+ *
+ ******************************************************************************/
+
+#include "bt_target.h"
+#include "bt_utils.h"
+
+#include "gatt_api.h"
+#include "gatt_int.h"
+
+#if BLE_INCLUDED == TRUE
+
+#define GATTP_MAX_NUM_INC_SVR       0
+#define GATTP_MAX_CHAR_NUM          2
+#define GATTP_MAX_ATTR_NUM          (GATTP_MAX_CHAR_NUM * 2 + GATTP_MAX_NUM_INC_SVR + 1)
+#define GATTP_MAX_CHAR_VALUE_SIZE   50
+
+#ifndef GATTP_ATTR_DB_SIZE
+#define GATTP_ATTR_DB_SIZE      GATT_DB_MEM_SIZE(GATTP_MAX_NUM_INC_SVR, GATTP_MAX_CHAR_NUM, GATTP_MAX_CHAR_VALUE_SIZE)
+#endif
+
+static void gatt_request_cback(UINT16 conn_id, UINT32 trans_id, UINT8 op_code, tGATTS_DATA *p_data);
+static void gatt_connect_cback(tGATT_IF gatt_if, BD_ADDR bda, UINT16 conn_id, BOOLEAN connected,
+              tGATT_DISCONN_REASON reason, tBT_TRANSPORT transport);
+static void gatt_disc_res_cback(UINT16 conn_id, tGATT_DISC_TYPE disc_type, tGATT_DISC_RES *p_data);
+static void gatt_disc_cmpl_cback(UINT16 conn_id, tGATT_DISC_TYPE disc_type, tGATT_STATUS status);
+static void gatt_cl_op_cmpl_cback(UINT16 conn_id, tGATTC_OPTYPE op, tGATT_STATUS status,
+              tGATT_CL_COMPLETE *p_data);
+
+static void gatt_cl_start_config_ccc(tGATT_PROFILE_CLCB *p_clcb);
+
+
+static tGATT_CBACK gatt_profile_cback =
+{
+    gatt_connect_cback,
+    gatt_cl_op_cmpl_cback,
+    gatt_disc_res_cback,
+    gatt_disc_cmpl_cback,
+    gatt_request_cback,
+    NULL,
+    NULL
+} ;
+
+/*******************************************************************************
+**
+** Function         gatt_profile_find_conn_id_by_bd_addr
+**
+** Description      Find the connection ID by remote address
+**
+** Returns          Connection ID
+**
+*******************************************************************************/
+UINT16 gatt_profile_find_conn_id_by_bd_addr(BD_ADDR remote_bda)
+{
+    UINT16 conn_id = GATT_INVALID_CONN_ID;
+    GATT_GetConnIdIfConnected (gatt_cb.gatt_if, remote_bda, &conn_id, BT_TRANSPORT_LE);
+    return conn_id;
+}
+
+/*******************************************************************************
+**
+** Function         gatt_profile_find_clcb_by_conn_id
+**
+** Description      find clcb by Connection ID
+**
+** Returns          Pointer to the found link conenction control block.
+**
+*******************************************************************************/
+static tGATT_PROFILE_CLCB *gatt_profile_find_clcb_by_conn_id(UINT16 conn_id)
+{
+    UINT8 i_clcb;
+    tGATT_PROFILE_CLCB    *p_clcb = NULL;
+
+    for (i_clcb = 0, p_clcb= gatt_cb.profile_clcb; i_clcb < GATT_MAX_APPS; i_clcb++, p_clcb++)
+    {
+        if (p_clcb->in_use && p_clcb->conn_id == conn_id)
+            return p_clcb;
+    }
+
+    return NULL;
+}
+
+/*******************************************************************************
+**
+** Function         gatt_profile_find_clcb_by_bd_addr
+**
+** Description      The function searches all LCBs with macthing bd address.
+**
+** Returns          Pointer to the found link conenction control block.
+**
+*******************************************************************************/
+static tGATT_PROFILE_CLCB *gatt_profile_find_clcb_by_bd_addr(BD_ADDR bda, tBT_TRANSPORT transport)
+{
+    UINT8 i_clcb;
+    tGATT_PROFILE_CLCB    *p_clcb = NULL;
+
+    for (i_clcb = 0, p_clcb= gatt_cb.profile_clcb; i_clcb < GATT_MAX_APPS; i_clcb++, p_clcb++)
+    {
+        if (p_clcb->in_use && p_clcb->transport == transport &&
+            p_clcb->connected && !memcmp(p_clcb->bda, bda, BD_ADDR_LEN))
+            return p_clcb;
+    }
+
+    return NULL;
+}
+
+/*******************************************************************************
+**
+** Function         gatt_profile_clcb_alloc
+**
+** Description      The function allocates a GATT profile  connection link control block
+**
+** Returns           NULL if not found. Otherwise pointer to the connection link block.
+**
+*******************************************************************************/
+tGATT_PROFILE_CLCB *gatt_profile_clcb_alloc (UINT16 conn_id, BD_ADDR bda, tBT_TRANSPORT tranport)
+{
+    UINT8                   i_clcb = 0;
+    tGATT_PROFILE_CLCB      *p_clcb = NULL;
+
+    for (i_clcb = 0, p_clcb= gatt_cb.profile_clcb; i_clcb < GATT_MAX_APPS; i_clcb++, p_clcb++)
+    {
+        if (!p_clcb->in_use)
+        {
+            p_clcb->in_use      = TRUE;
+            p_clcb->conn_id     = conn_id;
+            p_clcb->connected   = TRUE;
+            p_clcb->transport   = tranport;
+            memcpy (p_clcb->bda, bda, BD_ADDR_LEN);
+            break;
+        }
+    }
+    if(i_clcb < GATT_MAX_APPS)
+        return p_clcb;
+
+    return NULL;
+}
+
+/*******************************************************************************
+**
+** Function         gatt_profile_clcb_dealloc
+**
+** Description      The function deallocates a GATT profile  connection link control block
+**
+** Returns          void
+**
+*******************************************************************************/
+void gatt_profile_clcb_dealloc (tGATT_PROFILE_CLCB *p_clcb)
+{
+    memset(p_clcb, 0, sizeof(tGATT_PROFILE_CLCB));
+}
+
+/*******************************************************************************
+**
+** Function         gatt_request_cback
+**
+** Description      GATT profile attribute access request callback.
+**
+** Returns          void.
+**
+*******************************************************************************/
+static void gatt_request_cback (UINT16 conn_id, UINT32 trans_id, tGATTS_REQ_TYPE type,
+                                        tGATTS_DATA *p_data)
+{
+    UINT8       status = GATT_INVALID_PDU;
+    tGATTS_RSP   rsp_msg ;
+    BOOLEAN     ignore = FALSE;
+
+    memset(&rsp_msg, 0, sizeof(tGATTS_RSP));
+
+    switch (type)
+    {
+        case GATTS_REQ_TYPE_READ:
+            status = GATT_READ_NOT_PERMIT;
+            break;
+
+        case GATTS_REQ_TYPE_WRITE:
+            status = GATT_WRITE_NOT_PERMIT;
+            break;
+
+        case GATTS_REQ_TYPE_WRITE_EXEC:
+        case GATT_CMD_WRITE:
+            ignore = TRUE;
+            GATT_TRACE_EVENT("Ignore GATT_REQ_EXEC_WRITE/WRITE_CMD" );
+            break;
+
+        case GATTS_REQ_TYPE_MTU:
+            GATT_TRACE_EVENT("Get MTU exchange new mtu size: %d", p_data->mtu);
+            ignore = TRUE;
+            break;
+
+        default:
+            GATT_TRACE_EVENT("Unknown/unexpected LE GAP ATT request: 0x%02x", type);
+            break;
+    }
+
+    if (!ignore)
+        GATTS_SendRsp (conn_id, trans_id, status, &rsp_msg);
+
+}
+
+/*******************************************************************************
+**
+** Function         gatt_connect_cback
+**
+** Description      Gatt profile connection callback.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void gatt_connect_cback (tGATT_IF gatt_if, BD_ADDR bda, UINT16 conn_id,
+                                        BOOLEAN connected, tGATT_DISCONN_REASON reason,
+                                        tBT_TRANSPORT transport)
+{
+    UNUSED(gatt_if);
+
+    GATT_TRACE_EVENT("%s: from %08x%04x connected:%d conn_id=%d reason = 0x%04x", __func__,
+                      (bda[0]<<24)+(bda[1]<<16)+(bda[2]<<8)+bda[3],
+                      (bda[4]<<8)+bda[5], connected, conn_id, reason);
+
+    tGATT_PROFILE_CLCB *p_clcb = gatt_profile_find_clcb_by_bd_addr(bda, transport);
+    if (connected) {
+        if (p_clcb == NULL)
+            p_clcb = gatt_profile_clcb_alloc(conn_id, bda, transport);
+
+        if (p_clcb == NULL)
+            return;
+
+        p_clcb->connected = TRUE;
+        p_clcb->ccc_stage = GATT_SVC_CHANGED_SERVICE;
+        gatt_cl_start_config_ccc(p_clcb);
+    } else {
+        if (p_clcb != NULL)
+            gatt_profile_clcb_dealloc(p_clcb);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         gatt_profile_db_init
+**
+** Description      Initializa the GATT profile attribute database.
+**
+*******************************************************************************/
+void gatt_profile_db_init (void)
+{
+    tBT_UUID          app_uuid = {LEN_UUID_128, {0}};
+    tBT_UUID          uuid = {LEN_UUID_16, {UUID_SERVCLASS_GATT_SERVER}};
+    UINT16            service_handle = 0;
+    tGATT_STATUS      status;
+
+    /* Fill our internal UUID with a fixed pattern 0x81 */
+    memset (&app_uuid.uu.uuid128, 0x81, LEN_UUID_128);
+
+
+    /* Create a GATT profile service */
+    gatt_cb.gatt_if = GATT_Register(&app_uuid, &gatt_profile_cback);
+    GATT_StartIf(gatt_cb.gatt_if);
+
+    service_handle = GATTS_CreateService (gatt_cb.gatt_if , &uuid, 0, GATTP_MAX_ATTR_NUM, TRUE);
+    /* add Service Changed characteristic
+    */
+    uuid.uu.uuid16 = gatt_cb.gattp_attr.uuid = GATT_UUID_GATT_SRV_CHGD;
+    gatt_cb.gattp_attr.service_change = 0;
+    gatt_cb.gattp_attr.handle   =
+    gatt_cb.handle_of_h_r       = GATTS_AddCharacteristic(service_handle, &uuid, 0, GATT_CHAR_PROP_BIT_INDICATE);
+
+    GATT_TRACE_DEBUG ("gatt_profile_db_init:  handle of service changed%d",
+                       gatt_cb.handle_of_h_r  );
+
+    /* start service
+    */
+    status = GATTS_StartService (gatt_cb.gatt_if, service_handle, GATTP_TRANSPORT_SUPPORTED );
+
+    GATT_TRACE_DEBUG ("gatt_profile_db_init:  gatt_if=%d   start status%d",
+                       gatt_cb.gatt_if,  status);
+}
+
+/*******************************************************************************
+**
+** Function         gatt_disc_res_cback
+**
+** Description      Gatt profile discovery result callback
+**
+** Returns          void
+**
+*******************************************************************************/
+static void gatt_disc_res_cback (UINT16 conn_id, tGATT_DISC_TYPE disc_type, tGATT_DISC_RES *p_data)
+{
+    tGATT_PROFILE_CLCB *p_clcb = gatt_profile_find_clcb_by_conn_id(conn_id);
+
+    if (p_clcb == NULL)
+        return;
+
+    switch (disc_type)
+    {
+    case GATT_DISC_SRVC_BY_UUID:/* stage 1 */
+        p_clcb->e_handle = p_data->value.group_value.e_handle;
+        p_clcb->ccc_result ++;
+        break;
+
+    case GATT_DISC_CHAR:/* stage 2 */
+        p_clcb->s_handle = p_data->value.dclr_value.val_handle;
+        p_clcb->ccc_result ++;
+        break;
+
+    case GATT_DISC_CHAR_DSCPT: /* stage 3 */
+        if (p_data->type.uu.uuid16 == GATT_UUID_CHAR_CLIENT_CONFIG)
+        {
+            p_clcb->s_handle = p_data->handle;
+            p_clcb->ccc_result ++;
+        }
+        break;
+    }
+}
+
+#ifdef BLUETOOTH_RTK
+/*******************************************************************************
+**
+** Function         gatt_config_ccc_complete
+**
+** Description      The function finish the service change ccc configuration
+**
+** Returns          void
+**
+*******************************************************************************/
+static void gatt_config_ccc_complete(tGATT_PROFILE_CLCB *p_clcb)
+{
+    GATT_RemoveLinkFlag (p_clcb->conn_id);
+    gatt_profile_clcb_dealloc(p_clcb);
+}
+#endif
+
+/*******************************************************************************
+**
+** Function         gatt_disc_cmpl_cback
+**
+** Description      Gatt profile discovery complete callback
+**
+** Returns          void
+**
+*******************************************************************************/
+static void gatt_disc_cmpl_cback (UINT16 conn_id, tGATT_DISC_TYPE disc_type, tGATT_STATUS status)
+{
+    tGATT_PROFILE_CLCB *p_clcb = gatt_profile_find_clcb_by_conn_id(conn_id);
+
+    if (p_clcb == NULL)
+        return;
+
+    if (status == GATT_SUCCESS && p_clcb->ccc_result > 0)
+    {
+        p_clcb->ccc_result = 0;
+        p_clcb->ccc_stage ++;
+        gatt_cl_start_config_ccc(p_clcb);
+    } else {
+        GATT_TRACE_ERROR("%s() - Unable to register for service changed indication", __func__);
+#ifdef BLUETOOTH_RTK
+        gatt_config_ccc_complete (p_clcb);
+#endif
+    }
+}
+
+/*******************************************************************************
+**
+** Function         gatt_cl_op_cmpl_cback
+**
+** Description      Gatt profile client operation complete callback
+**
+** Returns          void
+**
+*******************************************************************************/
+static void gatt_cl_op_cmpl_cback (UINT16 conn_id, tGATTC_OPTYPE op,
+                                   tGATT_STATUS status, tGATT_CL_COMPLETE *p_data)
+{
+    UNUSED(conn_id);
+    UNUSED(op);
+    UNUSED(status);
+    UNUSED(p_data);
+}
+
+/*******************************************************************************
+**
+** Function         gatt_cl_start_config_ccc
+**
+** Description      Gatt profile start configure service change CCC
+**
+** Returns          void
+**
+*******************************************************************************/
+static void gatt_cl_start_config_ccc(tGATT_PROFILE_CLCB *p_clcb)
+{
+    tGATT_DISC_PARAM    srvc_disc_param;
+    tGATT_VALUE         ccc_value;
+
+    GATT_TRACE_DEBUG("%s() - stage: %d", __FUNCTION__, p_clcb->ccc_stage);
+
+    memset (&srvc_disc_param, 0 , sizeof(tGATT_DISC_PARAM));
+    memset (&ccc_value, 0 , sizeof(tGATT_VALUE));
+
+    switch(p_clcb->ccc_stage)
+    {
+    case GATT_SVC_CHANGED_SERVICE: /* discover GATT service */
+        srvc_disc_param.s_handle = 1;
+        srvc_disc_param.e_handle = 0xffff;
+        srvc_disc_param.service.len = 2;
+        srvc_disc_param.service.uu.uuid16 = UUID_SERVCLASS_GATT_SERVER;
+        GATTC_Discover(p_clcb->conn_id, GATT_DISC_SRVC_BY_UUID, &srvc_disc_param);
+        break;
+
+    case GATT_SVC_CHANGED_CHARACTERISTIC: /* discover service change char */
+        srvc_disc_param.s_handle = 1;
+        srvc_disc_param.e_handle = p_clcb->e_handle;
+        srvc_disc_param.service.len = 2;
+        srvc_disc_param.service.uu.uuid16 = GATT_UUID_GATT_SRV_CHGD;
+        GATTC_Discover(p_clcb->conn_id, GATT_DISC_CHAR, &srvc_disc_param);
+        break;
+
+    case GATT_SVC_CHANGED_DESCRIPTOR: /* discover service change ccc */
+        srvc_disc_param.s_handle = p_clcb->s_handle;
+        srvc_disc_param.e_handle = p_clcb->e_handle;
+        GATTC_Discover(p_clcb->conn_id, GATT_DISC_CHAR_DSCPT, &srvc_disc_param);
+        break;
+
+    case GATT_SVC_CHANGED_CONFIGURE_CCCD: /* write ccc */
+        ccc_value.handle = p_clcb->s_handle;
+        ccc_value.len = 2;
+        ccc_value.value[0] = GATT_CLT_CONFIG_INDICATION;
+        GATTC_Write(p_clcb->conn_id, GATT_WRITE, &ccc_value);
+        break;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         GATT_ConfigServiceChangeCCC
+**
+** Description      Configure service change indication on remote device
+**
+** Returns          none
+**
+*******************************************************************************/
+void GATT_ConfigServiceChangeCCC (BD_ADDR remote_bda, BOOLEAN enable, tBT_TRANSPORT transport)
+{
+    tGATT_PROFILE_CLCB   *p_clcb = gatt_profile_find_clcb_by_bd_addr (remote_bda, transport);
+
+    if (p_clcb == NULL)
+        p_clcb = gatt_profile_clcb_alloc (0, remote_bda, transport);
+
+    if (p_clcb == NULL)
+        return;
+
+    if (GATT_GetConnIdIfConnected (gatt_cb.gatt_if, remote_bda, &p_clcb->conn_id, transport))
+    {
+        p_clcb->connected = TRUE;
+    }
+    /* hold the link here */
+    GATT_Connect(gatt_cb.gatt_if, remote_bda, TRUE, transport);
+    p_clcb->ccc_stage = GATT_SVC_CHANGED_CONNECTING;
+
+    if (!p_clcb->connected)
+    {
+        /* wait for connection */
+        return;
+    }
+
+    p_clcb->ccc_stage ++;
+    gatt_cl_start_config_ccc(p_clcb);
+}
+
+#endif  /* BLE_INCLUDED */
diff --git a/rtkbt/code/bt/stack/gatt/gatt_auth.c b/rtkbt/code/bt/stack/gatt/gatt_auth.c
new file mode 100755
index 0000000..27dceb6
--- /dev/null
+++ b/rtkbt/code/bt/stack/gatt/gatt_auth.c
@@ -0,0 +1,533 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  this file contains GATT authentication handling functions
+ *
+ ******************************************************************************/
+#include "bt_target.h"
+#include "bt_utils.h"
+
+#if BLE_INCLUDED == TRUE
+#include <string.h>
+#include "bt_common.h"
+
+#include "gatt_int.h"
+#include "gatt_api.h"
+#include "btm_int.h"
+
+/*******************************************************************************
+**
+** Function         gatt_sign_data
+**
+** Description      This function sign the data for write command.
+**
+** Returns          TRUE if encrypted, otherwise FALSE.
+**
+*******************************************************************************/
+static BOOLEAN gatt_sign_data (tGATT_CLCB *p_clcb)
+{
+    tGATT_VALUE         *p_attr = (tGATT_VALUE *)p_clcb->p_attr_buf;
+    UINT8               *p_data = NULL, *p;
+    UINT16              payload_size = p_clcb->p_tcb->payload_size;
+    BOOLEAN             status = FALSE;
+    UINT8                *p_signature;
+
+    /* do not need to mark channel securoty activity for data signing */
+    gatt_set_sec_act(p_clcb->p_tcb, GATT_SEC_OK);
+
+    p_data = (UINT8 *)osi_malloc(p_attr->len + 3); /* 3 = 2 byte handle + opcode */
+
+    p = p_data;
+    UINT8_TO_STREAM(p, GATT_SIGN_CMD_WRITE);
+    UINT16_TO_STREAM(p, p_attr->handle);
+    ARRAY_TO_STREAM(p, p_attr->value, p_attr->len);
+
+    /* sign data length should be attribulte value length plus 2B handle + 1B op code */
+    if ((payload_size - GATT_AUTH_SIGN_LEN - 3) < p_attr->len)
+        p_attr->len = payload_size - GATT_AUTH_SIGN_LEN - 3;
+
+    p_signature = p_attr->value + p_attr->len;
+    if (BTM_BleDataSignature(p_clcb->p_tcb->peer_bda,
+                             p_data,
+                             (UINT16)(p_attr->len + 3), /* 3 = 2 byte handle + opcode */
+                             p_signature)) {
+        p_attr->len += BTM_BLE_AUTH_SIGN_LEN;
+        gatt_set_ch_state(p_clcb->p_tcb, GATT_CH_OPEN);
+        gatt_act_write(p_clcb, GATT_SEC_SIGN_DATA);
+    } else {
+        gatt_end_operation(p_clcb, GATT_INTERNAL_ERROR, NULL);
+    }
+
+    osi_free(p_data);
+
+    return status;
+}
+
+/*******************************************************************************
+**
+** Function         gatt_verify_signature
+**
+** Description      This function start to verify the sign data when receiving
+**                  the data from peer device.
+**
+** Returns
+**
+*******************************************************************************/
+void gatt_verify_signature(tGATT_TCB *p_tcb, BT_HDR *p_buf)
+{
+    UINT16  cmd_len;
+    UINT8   op_code;
+    UINT8   *p, *p_orig = (UINT8 *)(p_buf + 1) + p_buf->offset;
+    UINT32  counter;
+
+    if (p_buf->len < GATT_AUTH_SIGN_LEN + 4) {
+        GATT_TRACE_ERROR("%s: Data length %u less than expected %u",
+                         __func__, p_buf->len, GATT_AUTH_SIGN_LEN + 4);
+        return;
+    }
+    cmd_len = p_buf->len - GATT_AUTH_SIGN_LEN + 4;
+    p =  p_orig + cmd_len - 4;
+    STREAM_TO_UINT32(counter, p);
+
+    if (BTM_BleVerifySignature(p_tcb->peer_bda, p_orig, cmd_len, counter, p))
+    {
+        STREAM_TO_UINT8(op_code, p_orig);
+        gatt_server_handle_client_req (p_tcb, op_code, (UINT16)(p_buf->len - 1), p_orig);
+    }
+    else
+    {
+        /* if this is a bad signature, assume from attacker, ignore it  */
+        GATT_TRACE_ERROR("Signature Verification Failed, data ignored");
+    }
+
+    return;
+}
+/*******************************************************************************
+**
+** Function         gatt_sec_check_complete
+**
+** Description      security check complete and proceed to data sending action.
+**
+** Returns          void.
+**
+*******************************************************************************/
+void gatt_sec_check_complete(BOOLEAN sec_check_ok, tGATT_CLCB   *p_clcb, UINT8 sec_act)
+{
+    if (p_clcb && p_clcb->p_tcb &&
+        fixed_queue_is_empty(p_clcb->p_tcb->pending_enc_clcb)) {
+        gatt_set_sec_act(p_clcb->p_tcb, GATT_SEC_NONE);
+    }
+
+    if (!sec_check_ok)
+    {
+        gatt_end_operation(p_clcb, GATT_AUTH_FAIL, NULL);
+    }
+    else if (p_clcb->operation == GATTC_OPTYPE_WRITE)
+    {
+        gatt_act_write(p_clcb, sec_act);
+    }
+    else if (p_clcb->operation == GATTC_OPTYPE_READ)
+    {
+        gatt_act_read(p_clcb, p_clcb->counter);
+    }
+}
+/*******************************************************************************
+**
+** Function         gatt_enc_cmpl_cback
+**
+** Description      link encryption complete callback.
+**
+** Returns
+**
+*******************************************************************************/
+void gatt_enc_cmpl_cback(BD_ADDR bd_addr, tBT_TRANSPORT transport, void *p_ref_data, tBTM_STATUS result)
+{
+    tGATT_TCB   *p_tcb;
+    UINT8       sec_flag;
+    BOOLEAN     status = FALSE;
+    UNUSED(p_ref_data);
+
+    GATT_TRACE_DEBUG("gatt_enc_cmpl_cback");
+    if ((p_tcb = gatt_find_tcb_by_addr(bd_addr, transport)) != NULL)
+    {
+        if (gatt_get_sec_act(p_tcb) == GATT_SEC_ENC_PENDING)
+            return;
+
+        tGATT_PENDING_ENC_CLCB *p_buf =
+            (tGATT_PENDING_ENC_CLCB *)fixed_queue_try_dequeue(p_tcb->pending_enc_clcb);
+        if (p_buf != NULL)
+        {
+            if (result == BTM_SUCCESS)
+            {
+                if (gatt_get_sec_act(p_tcb) == GATT_SEC_ENCRYPT_MITM )
+                {
+                    BTM_GetSecurityFlagsByTransport(bd_addr, &sec_flag, transport);
+
+                    if (sec_flag & BTM_SEC_FLAG_LKEY_AUTHED)
+                    {
+                        status = TRUE;
+                    }
+                }
+                else
+                {
+                    status = TRUE;
+                }
+            }
+            gatt_sec_check_complete(status, p_buf->p_clcb, p_tcb->sec_act);
+            osi_free(p_buf);
+            /* start all other pending operation in queue */
+            for (size_t count = fixed_queue_length(p_tcb->pending_enc_clcb);
+                 count > 0; count--)
+            {
+                p_buf = (tGATT_PENDING_ENC_CLCB *)fixed_queue_try_dequeue(p_tcb->pending_enc_clcb);
+                if (p_buf != NULL)
+                {
+                    gatt_security_check_start(p_buf->p_clcb);
+                    osi_free(p_buf);
+                }
+                else
+                    break;
+            }
+        }
+        else
+        {
+            GATT_TRACE_ERROR("Unknown operation encryption completed");
+        }
+    }
+    else
+    {
+        GATT_TRACE_ERROR("enc callback for unknown bd_addr");
+    }
+}
+
+/*******************************************************************************
+**
+** Function         gatt_notify_enc_cmpl
+**
+** Description      link encryption complete notification for all encryption process
+**                  initiated outside GATT.
+**
+** Returns
+**
+*******************************************************************************/
+void gatt_notify_enc_cmpl(BD_ADDR bd_addr)
+{
+    tGATT_TCB   *p_tcb;
+    UINT8        i = 0;
+
+    if ((p_tcb = gatt_find_tcb_by_addr(bd_addr, BT_TRANSPORT_LE)) != NULL)
+    {
+        for (i = 0; i < GATT_MAX_APPS; i++)
+        {
+            if (gatt_cb.cl_rcb[i].in_use && gatt_cb.cl_rcb[i].app_cb.p_enc_cmpl_cb)
+            {
+                (*gatt_cb.cl_rcb[i].app_cb.p_enc_cmpl_cb)(gatt_cb.cl_rcb[i].gatt_if, bd_addr);
+            }
+        }
+
+        if (gatt_get_sec_act(p_tcb) == GATT_SEC_ENC_PENDING)
+        {
+            gatt_set_sec_act(p_tcb, GATT_SEC_NONE);
+
+            size_t count = fixed_queue_length(p_tcb->pending_enc_clcb);
+            for (; count > 0; count--)
+            {
+                tGATT_PENDING_ENC_CLCB *p_buf =
+                    (tGATT_PENDING_ENC_CLCB *)fixed_queue_try_dequeue(p_tcb->pending_enc_clcb);
+                if (p_buf != NULL)
+                {
+                    gatt_security_check_start(p_buf->p_clcb);
+                    osi_free(p_buf);
+                }
+                else
+                    break;
+            }
+        }
+    }
+    else
+    {
+        GATT_TRACE_DEBUG("notify GATT for encryption completion of unknown device");
+    }
+    return;
+}
+/*******************************************************************************
+**
+** Function         gatt_set_sec_act
+**
+** Description      This function set the sec_act in clcb
+**
+** Returns          none
+**
+*******************************************************************************/
+void gatt_set_sec_act(tGATT_TCB *p_tcb, tGATT_SEC_ACTION sec_act)
+{
+    if (p_tcb)
+    {
+        p_tcb->sec_act = sec_act;
+    }
+}
+/*******************************************************************************
+**
+** Function         gatt_get_sec_act
+**
+** Description      This function get the sec_act in clcb
+**
+** Returns          none
+**
+*******************************************************************************/
+tGATT_SEC_ACTION gatt_get_sec_act(tGATT_TCB *p_tcb)
+{
+    tGATT_SEC_ACTION sec_act = GATT_SEC_NONE;
+    if (p_tcb)
+    {
+        sec_act = p_tcb->sec_act;
+    }
+    return sec_act;
+}
+/*******************************************************************************
+**
+** Function         gatt_determine_sec_act
+**
+** Description      This routine determine the security action based on auth_request and
+**                  current link status
+**
+** Returns          tGATT_SEC_ACTION security action
+**
+*******************************************************************************/
+tGATT_SEC_ACTION gatt_determine_sec_act(tGATT_CLCB *p_clcb )
+{
+    tGATT_SEC_ACTION    act = GATT_SEC_OK;
+    UINT8               sec_flag;
+    tGATT_TCB           *p_tcb = p_clcb->p_tcb;
+    tGATT_AUTH_REQ      auth_req = p_clcb->auth_req;
+    BOOLEAN             is_link_encrypted= FALSE;
+    BOOLEAN             is_link_key_known=FALSE;
+    BOOLEAN             is_key_mitm=FALSE;
+    UINT8               key_type;
+    tBTM_BLE_SEC_REQ_ACT    sec_act = BTM_LE_SEC_NONE;
+
+    if (auth_req == GATT_AUTH_REQ_NONE )
+        return act;
+
+    BTM_GetSecurityFlagsByTransport(p_tcb->peer_bda, &sec_flag, p_clcb->p_tcb->transport);
+
+    btm_ble_link_sec_check(p_tcb->peer_bda, auth_req, &sec_act);
+
+    /* if a encryption is pending, need to wait */
+    if (sec_act == BTM_BLE_SEC_REQ_ACT_DISCARD &&
+        auth_req != GATT_AUTH_REQ_NONE)
+        return GATT_SEC_ENC_PENDING;
+
+    if (sec_flag & (BTM_SEC_FLAG_ENCRYPTED| BTM_SEC_FLAG_LKEY_KNOWN))
+    {
+        if (sec_flag & BTM_SEC_FLAG_ENCRYPTED)
+            is_link_encrypted = TRUE;
+
+        is_link_key_known = TRUE;
+
+        if (sec_flag & BTM_SEC_FLAG_LKEY_AUTHED)
+            is_key_mitm = TRUE;
+    }
+
+    /* first check link key upgrade required or not */
+    switch (auth_req)
+    {
+        case GATT_AUTH_REQ_MITM:
+        case GATT_AUTH_REQ_SIGNED_MITM:
+            if (!is_key_mitm)
+                act = GATT_SEC_ENCRYPT_MITM;
+            break;
+
+        case GATT_AUTH_REQ_NO_MITM:
+        case GATT_AUTH_REQ_SIGNED_NO_MITM:
+            if (!is_link_key_known)
+                act = GATT_SEC_ENCRYPT_NO_MITM;
+            break;
+        default:
+            break;
+    }
+
+    /* now check link needs to be encrypted or not if the link key upgrade is not required */
+    if (act == GATT_SEC_OK)
+    {
+        if (p_tcb->transport == BT_TRANSPORT_LE &&
+            (p_clcb->operation == GATTC_OPTYPE_WRITE) &&
+            (p_clcb->op_subtype == GATT_WRITE_NO_RSP))
+        {
+            /* this is a write command request
+               check data signing required or not */
+            if (!is_link_encrypted)
+            {
+                btm_ble_get_enc_key_type(p_tcb->peer_bda, &key_type);
+
+                if ( (key_type & BTM_LE_KEY_LCSRK) &&
+                     ((auth_req == GATT_AUTH_REQ_SIGNED_NO_MITM) ||
+                      (auth_req == GATT_AUTH_REQ_SIGNED_MITM)))
+                {
+                    act = GATT_SEC_SIGN_DATA;
+                }
+                else
+                {
+                    act = GATT_SEC_ENCRYPT;
+                }
+            }
+        }
+        else
+        {
+            if (!is_link_encrypted)
+            {
+                act = GATT_SEC_ENCRYPT;
+            }
+        }
+
+    }
+
+    return  act ;
+
+}
+
+
+
+/*******************************************************************************
+**
+** Function         gatt_get_link_encrypt_status
+**
+** Description      This routine get the encryption status of the specified link
+**
+**
+** Returns          tGATT_STATUS link encryption status
+**
+*******************************************************************************/
+tGATT_STATUS gatt_get_link_encrypt_status(tGATT_TCB *p_tcb)
+{
+    tGATT_STATUS    encrypt_status = GATT_NOT_ENCRYPTED;
+    UINT8           sec_flag=0;
+
+    BTM_GetSecurityFlagsByTransport(p_tcb->peer_bda, &sec_flag, p_tcb->transport);
+
+    if ((sec_flag & BTM_SEC_FLAG_ENCRYPTED) && (sec_flag & BTM_SEC_FLAG_LKEY_KNOWN))
+    {
+        encrypt_status = GATT_ENCRYPED_NO_MITM;
+        if (sec_flag & BTM_SEC_FLAG_LKEY_AUTHED)
+            encrypt_status = GATT_ENCRYPED_MITM;
+    }
+
+    GATT_TRACE_DEBUG("gatt_get_link_encrypt_status status=0x%x",encrypt_status);
+    return  encrypt_status ;
+}
+
+
+/*******************************************************************************
+**
+** Function          gatt_convert_sec_action
+**
+** Description      Convert GATT security action enum into equivalent BTM BLE security action enum
+**
+** Returns          BOOLEAN TRUE - conversation is successful
+**
+*******************************************************************************/
+static BOOLEAN gatt_convert_sec_action(tGATT_SEC_ACTION gatt_sec_act, tBTM_BLE_SEC_ACT *p_btm_sec_act )
+{
+    BOOLEAN status = TRUE;
+    switch (gatt_sec_act)
+    {
+        case GATT_SEC_ENCRYPT:
+            *p_btm_sec_act = BTM_BLE_SEC_ENCRYPT;
+            break;
+        case GATT_SEC_ENCRYPT_NO_MITM:
+            *p_btm_sec_act = BTM_BLE_SEC_ENCRYPT_NO_MITM;
+            break;
+        case GATT_SEC_ENCRYPT_MITM:
+            *p_btm_sec_act = BTM_BLE_SEC_ENCRYPT_MITM;
+            break;
+        default:
+            status = FALSE;
+            break;
+    }
+
+    return status;
+}
+/*******************************************************************************
+**
+** Function         gatt_check_enc_req
+**
+** Description      check link security.
+**
+** Returns          TRUE if encrypted, otherwise FALSE.
+**
+*******************************************************************************/
+BOOLEAN gatt_security_check_start(tGATT_CLCB *p_clcb)
+{
+    tGATT_TCB           *p_tcb = p_clcb->p_tcb;
+    tGATT_SEC_ACTION    gatt_sec_act;
+    tBTM_BLE_SEC_ACT    btm_ble_sec_act;
+    BOOLEAN             status = TRUE;
+    tBTM_STATUS         btm_status;
+    tGATT_SEC_ACTION    sec_act_old =  gatt_get_sec_act(p_tcb);
+
+    gatt_sec_act = gatt_determine_sec_act(p_clcb);
+
+    if (sec_act_old == GATT_SEC_NONE)
+        gatt_set_sec_act(p_tcb, gatt_sec_act);
+
+    switch (gatt_sec_act )
+    {
+        case GATT_SEC_SIGN_DATA:
+            GATT_TRACE_DEBUG("gatt_security_check_start: Do data signing");
+            gatt_sign_data(p_clcb);
+            break;
+        case GATT_SEC_ENCRYPT:
+        case GATT_SEC_ENCRYPT_NO_MITM:
+        case GATT_SEC_ENCRYPT_MITM:
+            if (sec_act_old < GATT_SEC_ENCRYPT)
+            {
+                GATT_TRACE_DEBUG("gatt_security_check_start: Encrypt now or key upgreade first");
+                gatt_convert_sec_action(gatt_sec_act, &btm_ble_sec_act);
+                btm_status = BTM_SetEncryption(p_tcb->peer_bda, p_tcb->transport,
+                                               gatt_enc_cmpl_cback, NULL, btm_ble_sec_act);
+                if ( (btm_status != BTM_SUCCESS) && (btm_status != BTM_CMD_STARTED))
+                {
+                    GATT_TRACE_ERROR("gatt_security_check_start BTM_SetEncryption failed btm_status=%d", btm_status);
+                    status = FALSE;
+                }
+            }
+            if (status)
+                gatt_add_pending_enc_channel_clcb (p_tcb, p_clcb);
+            break;
+        case GATT_SEC_ENC_PENDING:
+            gatt_add_pending_enc_channel_clcb (p_tcb, p_clcb);
+            /* wait for link encrypotion to finish */
+            break;
+        default:
+            gatt_sec_check_complete(TRUE, p_clcb, gatt_sec_act);
+            break;
+    }
+
+    if (status == FALSE)
+    {
+        gatt_set_sec_act(p_tcb, GATT_SEC_NONE);
+        gatt_set_ch_state(p_tcb, GATT_CH_OPEN);
+    }
+
+    return status;
+}
+
+
+#endif  /* BLE_INCLUDED */
diff --git a/rtkbt/code/bt/stack/gatt/gatt_cl.c b/rtkbt/code/bt/stack/gatt/gatt_cl.c
new file mode 100755
index 0000000..433a2f1
--- /dev/null
+++ b/rtkbt/code/bt/stack/gatt/gatt_cl.c
@@ -0,0 +1,1262 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  this file contains the main GATT client functions
+ *
+ ******************************************************************************/
+
+#include "bt_target.h"
+
+#if BLE_INCLUDED == TRUE
+
+#include <string.h>
+#include "bt_utils.h"
+#include "bt_common.h"
+#include "gatt_int.h"
+#include "l2c_int.h"
+
+#define GATT_WRITE_LONG_HDR_SIZE    5 /* 1 opcode + 2 handle + 2 offset */
+#define GATT_READ_CHAR_VALUE_HDL    (GATT_READ_CHAR_VALUE | 0x80)
+#define GATT_READ_INC_SRV_UUID128   (GATT_DISC_INC_SRVC   | 0x90)
+
+#define GATT_PREP_WRITE_RSP_MIN_LEN 4
+#define GATT_NOTIFICATION_MIN_LEN 2
+#define GATT_WRITE_RSP_MIN_LEN  2
+#define GATT_INFO_RSP_MIN_LEN   1
+#define GATT_MTU_RSP_MIN_LEN    2
+#define GATT_READ_BY_TYPE_RSP_MIN_LEN    1
+
+/********************************************************************************
+**                       G L O B A L      G A T T       D A T A                 *
+*********************************************************************************/
+void gatt_send_prepare_write(tGATT_TCB  *p_tcb, tGATT_CLCB *p_clcb);
+
+UINT8   disc_type_to_att_opcode[GATT_DISC_MAX] =
+{
+    0,
+    GATT_REQ_READ_BY_GRP_TYPE,     /*  GATT_DISC_SRVC_ALL = 1, */
+    GATT_REQ_FIND_TYPE_VALUE,      /*  GATT_DISC_SRVC_BY_UUID,  */
+    GATT_REQ_READ_BY_TYPE,         /*  GATT_DISC_INC_SRVC,      */
+    GATT_REQ_READ_BY_TYPE,         /*  GATT_DISC_CHAR,          */
+    GATT_REQ_FIND_INFO             /*  GATT_DISC_CHAR_DSCPT,    */
+};
+
+UINT16 disc_type_to_uuid[GATT_DISC_MAX] =
+{
+    0,                  /* reserved */
+    GATT_UUID_PRI_SERVICE, /* <service> DISC_SRVC_ALL */
+    GATT_UUID_PRI_SERVICE, /* <service> for DISC_SERVC_BY_UUID */
+    GATT_UUID_INCLUDE_SERVICE, /* <include_service> for DISC_INC_SRVC */
+    GATT_UUID_CHAR_DECLARE,   /* <characteristic> for DISC_CHAR */
+    0                   /* no type filtering for DISC_CHAR_DSCPT */
+};
+
+
+/*******************************************************************************
+**
+** Function         gatt_act_discovery
+**
+** Description      GATT discovery operation.
+**
+** Returns          void.
+**
+*******************************************************************************/
+void gatt_act_discovery(tGATT_CLCB *p_clcb)
+{
+    UINT8       op_code = disc_type_to_att_opcode[p_clcb->op_subtype];
+    tGATT_CL_MSG   cl_req;
+    tGATT_STATUS    st;
+
+    if (p_clcb->s_handle <= p_clcb->e_handle && p_clcb->s_handle != 0)
+    {
+        memset(&cl_req, 0, sizeof(tGATT_CL_MSG));
+
+        cl_req.browse.s_handle = p_clcb->s_handle;
+        cl_req.browse.e_handle = p_clcb->e_handle;
+
+        if (disc_type_to_uuid[p_clcb->op_subtype] != 0)
+        {
+            cl_req.browse.uuid.len = 2;
+            cl_req.browse.uuid.uu.uuid16 = disc_type_to_uuid[p_clcb->op_subtype];
+        }
+
+        if (p_clcb->op_subtype == GATT_DISC_SRVC_BY_UUID) /* fill in the FindByTypeValue request info*/
+        {
+            cl_req.find_type_value.uuid.len = 2;
+            cl_req.find_type_value.uuid.uu.uuid16 = disc_type_to_uuid[p_clcb->op_subtype];
+            cl_req.find_type_value.s_handle = p_clcb->s_handle;
+            cl_req.find_type_value.e_handle = p_clcb->e_handle;
+            cl_req.find_type_value.value_len = p_clcb->uuid.len;
+            /* if service type is 32 bits UUID, convert it now */
+            if (p_clcb->uuid.len == LEN_UUID_32)
+            {
+                cl_req.find_type_value.value_len = LEN_UUID_128;
+                gatt_convert_uuid32_to_uuid128(cl_req.find_type_value.value, p_clcb->uuid.uu.uuid32);
+            }
+            else
+            memcpy (cl_req.find_type_value.value,  &p_clcb->uuid.uu, p_clcb->uuid.len);
+        }
+
+        st = attp_send_cl_msg(p_clcb->p_tcb, p_clcb->clcb_idx, op_code, &cl_req);
+
+        if (st !=  GATT_SUCCESS && st != GATT_CMD_STARTED)
+        {
+            gatt_end_operation(p_clcb, GATT_ERROR, NULL);
+        }
+    }
+    else /* end of handle range */
+        gatt_end_operation(p_clcb, GATT_SUCCESS, NULL);
+}
+
+/*******************************************************************************
+**
+** Function         gatt_act_read
+**
+** Description      GATT read operation.
+**
+** Returns          void.
+**
+*******************************************************************************/
+void gatt_act_read (tGATT_CLCB *p_clcb, UINT16 offset)
+{
+    tGATT_TCB  *p_tcb = p_clcb->p_tcb;
+    UINT8   rt = GATT_INTERNAL_ERROR;
+    tGATT_CL_MSG  msg;
+    UINT8        op_code = 0;
+
+    memset (&msg, 0, sizeof(tGATT_CL_MSG));
+
+    switch (p_clcb->op_subtype)
+    {
+        case GATT_READ_CHAR_VALUE:
+        case GATT_READ_BY_TYPE:
+            op_code = GATT_REQ_READ_BY_TYPE;
+            msg.browse.s_handle = p_clcb->s_handle;
+            msg.browse.e_handle = p_clcb->e_handle;
+            if (p_clcb->op_subtype == GATT_READ_BY_TYPE)
+                memcpy(&msg.browse.uuid, &p_clcb->uuid, sizeof(tBT_UUID));
+            else
+            {
+                msg.browse.uuid.len = LEN_UUID_16;
+                msg.browse.uuid.uu.uuid16 = GATT_UUID_CHAR_DECLARE;
+            }
+            break;
+
+        case GATT_READ_CHAR_VALUE_HDL:
+        case GATT_READ_BY_HANDLE:
+            if (!p_clcb->counter)
+            {
+                op_code = GATT_REQ_READ;
+                msg.handle = p_clcb->s_handle;
+            }
+            else
+            {
+                if (!p_clcb->first_read_blob_after_read)
+                    p_clcb->first_read_blob_after_read = TRUE;
+                else
+                    p_clcb->first_read_blob_after_read = FALSE;
+
+                GATT_TRACE_DEBUG("gatt_act_read first_read_blob_after_read=%d",
+                                  p_clcb->first_read_blob_after_read);
+                op_code = GATT_REQ_READ_BLOB;
+                msg.read_blob.offset = offset;
+                msg.read_blob.handle = p_clcb->s_handle;
+            }
+            p_clcb->op_subtype &= ~ 0x80;
+            break;
+
+        case GATT_READ_PARTIAL:
+            op_code = GATT_REQ_READ_BLOB;
+            msg.read_blob.handle = p_clcb->s_handle;
+            msg.read_blob.offset = offset;
+            break;
+
+        case GATT_READ_MULTIPLE:
+            op_code = GATT_REQ_READ_MULTI;
+            memcpy (&msg.read_multi, p_clcb->p_attr_buf, sizeof(tGATT_READ_MULTI));
+            break;
+
+        case GATT_READ_INC_SRV_UUID128:
+            op_code = GATT_REQ_READ;
+            msg.handle = p_clcb->s_handle;
+            p_clcb->op_subtype &= ~ 0x90;
+            break;
+
+        default:
+            GATT_TRACE_ERROR("Unknown read type: %d", p_clcb->op_subtype);
+            break;
+    }
+
+    if (op_code != 0)
+        rt = attp_send_cl_msg(p_tcb, p_clcb->clcb_idx, op_code, &msg);
+
+    if ( op_code == 0 || (rt != GATT_SUCCESS && rt != GATT_CMD_STARTED))
+    {
+        gatt_end_operation(p_clcb, rt, NULL);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         gatt_act_write
+**
+** Description      GATT write operation.
+**
+** Returns          void.
+**
+*******************************************************************************/
+void gatt_act_write (tGATT_CLCB *p_clcb, UINT8 sec_act)
+{
+    tGATT_TCB           *p_tcb = p_clcb->p_tcb;
+    UINT8               rt = GATT_SUCCESS, op_code = 0;
+    tGATT_VALUE         *p_attr = (tGATT_VALUE *)p_clcb->p_attr_buf;
+
+    if (p_attr)
+    {
+        switch (p_clcb->op_subtype)
+        {
+            case GATT_WRITE_NO_RSP:
+                p_clcb->s_handle = p_attr->handle;
+                op_code = (sec_act == GATT_SEC_SIGN_DATA) ? GATT_SIGN_CMD_WRITE : GATT_CMD_WRITE;
+                rt = gatt_send_write_msg(p_tcb,
+                                         p_clcb->clcb_idx,
+                                         op_code,
+                                         p_attr->handle,
+                                         p_attr->len,
+                                         0,
+                                         p_attr->value);
+                break;
+
+            case GATT_WRITE:
+                if (p_attr->len <= (p_tcb->payload_size - GATT_HDR_SIZE))
+                {
+                    p_clcb->s_handle = p_attr->handle;
+
+                    rt = gatt_send_write_msg(p_tcb,
+                                             p_clcb->clcb_idx,
+                                             GATT_REQ_WRITE,
+                                             p_attr->handle,
+                                             p_attr->len,
+                                             0,
+                                             p_attr->value);
+                }
+                else /* prepare write for long attribute */
+                {
+                    gatt_send_prepare_write(p_tcb, p_clcb);
+                }
+                break;
+
+            case GATT_WRITE_PREPARE:
+                gatt_send_prepare_write(p_tcb, p_clcb);
+                break;
+
+            default:
+                rt = GATT_INTERNAL_ERROR;
+                GATT_TRACE_ERROR("Unknown write type: %d", p_clcb->op_subtype);
+                break;
+        }
+    }
+    else
+        rt = GATT_INTERNAL_ERROR;
+
+    if ((rt != GATT_SUCCESS  && rt != GATT_CMD_STARTED && rt != GATT_CONGESTED)
+        || (rt != GATT_CMD_STARTED && p_clcb->op_subtype == GATT_WRITE_NO_RSP))
+    {
+        if (rt != GATT_SUCCESS)
+        {
+            GATT_TRACE_ERROR("gatt_act_write() failed op_code=0x%x rt=%d", op_code, rt);
+        }
+        gatt_end_operation(p_clcb, rt, NULL);
+    }
+}
+/*******************************************************************************
+**
+** Function         gatt_send_queue_write_cancel
+**
+** Description      send queue write cancel
+**
+** Returns          void.
+**
+*******************************************************************************/
+void gatt_send_queue_write_cancel (tGATT_TCB *p_tcb, tGATT_CLCB *p_clcb, tGATT_EXEC_FLAG flag)
+{
+    UINT8       rt ;
+
+    GATT_TRACE_DEBUG("gatt_send_queue_write_cancel ");
+
+    rt = attp_send_cl_msg(p_tcb, p_clcb->clcb_idx, GATT_REQ_EXEC_WRITE, (tGATT_CL_MSG *)&flag);
+
+    if (rt != GATT_SUCCESS)
+    {
+        gatt_end_operation(p_clcb, rt, NULL);
+    }
+}
+/*******************************************************************************
+**
+** Function         gatt_check_write_long_terminate
+**
+** Description      To terminate write long or not.
+**
+** Returns          TRUE: write long is terminated; FALSE keep sending.
+**
+*******************************************************************************/
+BOOLEAN gatt_check_write_long_terminate(tGATT_TCB  *p_tcb, tGATT_CLCB *p_clcb, tGATT_VALUE *p_rsp_value)
+{
+    tGATT_VALUE         *p_attr = (tGATT_VALUE *)p_clcb->p_attr_buf;
+    BOOLEAN             exec = FALSE;
+    tGATT_EXEC_FLAG     flag = GATT_PREP_WRITE_EXEC;
+
+    GATT_TRACE_DEBUG("gatt_check_write_long_terminate ");
+    /* check the first write response status */
+    if (p_rsp_value != NULL)
+    {
+        if (p_rsp_value->handle != p_attr->handle ||
+            p_rsp_value->len != p_clcb->counter ||
+            memcmp(p_rsp_value->value, p_attr->value + p_attr->offset, p_rsp_value->len))
+        {
+            /* data does not match    */
+            p_clcb->status = GATT_ERROR;
+            flag = GATT_PREP_WRITE_CANCEL;
+            exec = TRUE;
+        }
+        else /* response checking is good */
+        {
+            p_clcb->status = GATT_SUCCESS;
+            /* update write offset and check if end of attribute value */
+            if ((p_attr->offset += p_rsp_value->len) >= p_attr->len)
+                exec = TRUE;
+        }
+    }
+    if (exec)
+    {
+        gatt_send_queue_write_cancel (p_tcb, p_clcb, flag);
+        return TRUE;
+    }
+    return FALSE;
+}
+/*******************************************************************************
+**
+** Function         gatt_send_prepare_write
+**
+** Description      Send prepare write.
+**
+** Returns          void.
+**
+*******************************************************************************/
+void gatt_send_prepare_write(tGATT_TCB  *p_tcb, tGATT_CLCB *p_clcb)
+{
+    tGATT_VALUE  *p_attr = (tGATT_VALUE *)p_clcb->p_attr_buf;
+    UINT16  to_send, offset;
+    UINT8   rt = GATT_SUCCESS;
+    UINT8   type = p_clcb->op_subtype;
+
+    GATT_TRACE_DEBUG("gatt_send_prepare_write type=0x%x", type );
+    to_send = p_attr->len - p_attr->offset;
+
+    if (to_send > (p_tcb->payload_size - GATT_WRITE_LONG_HDR_SIZE)) /* 2 = UINT16 offset bytes  */
+        to_send = p_tcb->payload_size - GATT_WRITE_LONG_HDR_SIZE;
+
+    p_clcb->s_handle = p_attr->handle;
+
+    offset = p_attr->offset;
+    if (type == GATT_WRITE_PREPARE)
+    {
+        offset += p_clcb->start_offset;
+    }
+
+    GATT_TRACE_DEBUG("offset =0x%x len=%d", offset, to_send );
+
+    rt = gatt_send_write_msg(p_tcb,
+                             p_clcb->clcb_idx,
+                             GATT_REQ_PREPARE_WRITE,
+                             p_attr->handle,
+                             to_send,                           /* length */
+                             offset,                            /* used as offset */
+                             p_attr->value + p_attr->offset);   /* data */
+
+    /* remember the write long attribute length */
+    p_clcb->counter = to_send;
+
+    if (rt != GATT_SUCCESS && rt != GATT_CMD_STARTED)
+    {
+        gatt_end_operation(p_clcb, rt, NULL);
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         gatt_process_find_type_value_rsp
+**
+** Description      This function is called to handle find by type value response.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void gatt_process_find_type_value_rsp (tGATT_TCB *p_tcb, tGATT_CLCB *p_clcb, UINT16 len, UINT8 *p_data)
+{
+    tGATT_DISC_RES      result;
+    UINT8               *p = p_data;
+
+    UNUSED(p_tcb);
+
+    GATT_TRACE_DEBUG("gatt_process_find_type_value_rsp ");
+    /* unexpected response */
+    if (p_clcb->operation != GATTC_OPTYPE_DISCOVERY || p_clcb->op_subtype != GATT_DISC_SRVC_BY_UUID)
+        return;
+
+    memset (&result, 0, sizeof(tGATT_DISC_RES));
+    result.type.len = 2;
+    result.type.uu.uuid16 = GATT_UUID_PRI_SERVICE;
+
+    /* returns a series of handle ranges */
+    while (len >= 4)
+    {
+        STREAM_TO_UINT16 (result.handle, p);
+        STREAM_TO_UINT16 (result.value.group_value.e_handle, p);
+        memcpy (&result.value.group_value.service_type,  &p_clcb->uuid, sizeof(tBT_UUID));
+
+        len -= 4;
+
+        if (p_clcb->p_reg->app_cb.p_disc_res_cb)
+            (*p_clcb->p_reg->app_cb.p_disc_res_cb)(p_clcb->conn_id, p_clcb->op_subtype, &result);
+    }
+
+    /* last handle  + 1 */
+    p_clcb->s_handle = (result.value.group_value.e_handle == 0) ? 0 : (result.value.group_value.e_handle + 1);
+    /* initiate another request */
+    gatt_act_discovery(p_clcb) ;
+}
+/*******************************************************************************
+**
+** Function         gatt_process_read_info_rsp
+**
+** Description      This function is called to handle the read information
+**                  response.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void gatt_process_read_info_rsp(tGATT_TCB *p_tcb, tGATT_CLCB *p_clcb, UINT8 op_code,
+                                UINT16 len, UINT8 *p_data)
+{
+    tGATT_DISC_RES  result;
+    UINT8   *p = p_data, uuid_len = 0, type;
+
+    UNUSED(p_tcb);
+    UNUSED(op_code);
+
+    if (len < GATT_INFO_RSP_MIN_LEN)
+    {
+        GATT_TRACE_ERROR("invalid Info Response PDU received, discard.");
+        gatt_end_operation(p_clcb, GATT_INVALID_PDU, NULL);
+        return;
+    }
+    /* unexpected response */
+    if (p_clcb->operation != GATTC_OPTYPE_DISCOVERY || p_clcb->op_subtype != GATT_DISC_CHAR_DSCPT)
+        return;
+
+    STREAM_TO_UINT8(type, p);
+    len -= 1;
+
+    if (type == GATT_INFO_TYPE_PAIR_16)
+        uuid_len = LEN_UUID_16;
+    else if (type == GATT_INFO_TYPE_PAIR_128)
+        uuid_len = LEN_UUID_128;
+
+    while (len >= uuid_len + 2)
+    {
+        STREAM_TO_UINT16 (result.handle, p);
+
+        if (uuid_len > 0)
+        {
+            if (!gatt_parse_uuid_from_cmd(&result.type, uuid_len, &p))
+                break;
+        }
+        else
+            memcpy (&result.type, &p_clcb->uuid, sizeof(tBT_UUID));
+
+        len -= (uuid_len + 2);
+
+        if (p_clcb->p_reg->app_cb.p_disc_res_cb)
+            (*p_clcb->p_reg->app_cb.p_disc_res_cb)(p_clcb->conn_id, p_clcb->op_subtype, &result);
+    }
+
+    p_clcb->s_handle = (result.handle == 0) ? 0 :(result.handle + 1);
+    /* initiate another request */
+    gatt_act_discovery(p_clcb) ;
+}
+/*******************************************************************************
+**
+** Function         gatt_proc_disc_error_rsp
+**
+** Description      This function process the read by type response and send another
+**                  request if needed.
+**
+** Returns          void.
+**
+*******************************************************************************/
+void gatt_proc_disc_error_rsp(tGATT_TCB *p_tcb, tGATT_CLCB *p_clcb, UINT8 opcode,
+                              UINT16 handle, UINT8 reason)
+{
+    tGATT_STATUS    status = (tGATT_STATUS) reason;
+
+    UNUSED(p_tcb);
+    UNUSED(handle);
+
+    GATT_TRACE_DEBUG("gatt_proc_disc_error_rsp reason: %02x cmd_code %04x", reason, opcode);
+
+    switch (opcode)
+    {
+        case GATT_REQ_READ_BY_GRP_TYPE:
+        case GATT_REQ_FIND_TYPE_VALUE:
+        case GATT_REQ_READ_BY_TYPE:
+        case GATT_REQ_FIND_INFO:
+            if (reason == GATT_NOT_FOUND)
+            {
+                status = GATT_SUCCESS;
+                GATT_TRACE_DEBUG("Discovery completed");
+            }
+            break;
+        default:
+            GATT_TRACE_ERROR("Incorrect discovery opcode %04x",   opcode);
+            break;
+    }
+
+    gatt_end_operation(p_clcb, status, NULL);
+}
+
+/*******************************************************************************
+**
+** Function         gatt_process_error_rsp
+**
+** Description      This function is called to handle the error response
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void gatt_process_error_rsp(tGATT_TCB *p_tcb, tGATT_CLCB *p_clcb, UINT8 op_code,
+                            UINT16 len, UINT8 *p_data)
+{
+    UINT8   opcode, reason, * p= p_data;
+    UINT16  handle;
+    tGATT_VALUE  *p_attr = (tGATT_VALUE *)p_clcb->p_attr_buf;
+
+    UNUSED(op_code);
+    UNUSED(len);
+
+    GATT_TRACE_DEBUG("gatt_process_error_rsp ");
+    STREAM_TO_UINT8(opcode, p);
+    STREAM_TO_UINT16(handle, p);
+    STREAM_TO_UINT8(reason, p);
+
+    if (p_clcb->operation == GATTC_OPTYPE_DISCOVERY)
+    {
+        gatt_proc_disc_error_rsp(p_tcb, p_clcb, opcode, handle, reason);
+    }
+    else
+    {
+        if ( (p_clcb->operation == GATTC_OPTYPE_WRITE) &&
+             (p_clcb->op_subtype == GATT_WRITE) &&
+             (opcode == GATT_REQ_PREPARE_WRITE) &&
+             (p_attr) &&
+             (handle == p_attr->handle)  )
+        {
+            p_clcb->status = reason;
+            gatt_send_queue_write_cancel(p_tcb, p_clcb, GATT_PREP_WRITE_CANCEL);
+        }
+        else if ((p_clcb->operation == GATTC_OPTYPE_READ) &&
+                 ((p_clcb->op_subtype == GATT_READ_CHAR_VALUE_HDL) ||
+                  (p_clcb->op_subtype == GATT_READ_BY_HANDLE)) &&
+                 (opcode == GATT_REQ_READ_BLOB) &&
+                 p_clcb->first_read_blob_after_read &&
+                 (reason == GATT_NOT_LONG))
+        {
+            gatt_end_operation(p_clcb, GATT_SUCCESS, (void *)p_clcb->p_attr_buf);
+        }
+        else
+            gatt_end_operation(p_clcb, reason, NULL);
+    }
+}
+/*******************************************************************************
+**
+** Function         gatt_process_prep_write_rsp
+**
+** Description      This function is called to handle the read response
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void gatt_process_prep_write_rsp (tGATT_TCB *p_tcb, tGATT_CLCB *p_clcb, UINT8 op_code,
+                                  UINT16 len, UINT8 *p_data)
+{
+    UINT8 *p = p_data;
+
+    tGATT_VALUE value = {
+        .conn_id = p_clcb->conn_id,
+        .auth_req = GATT_AUTH_REQ_NONE,
+    };
+
+    GATT_TRACE_ERROR("value resp op_code = %s len = %d", gatt_dbg_op_name(op_code), len);
+
+    if (len < GATT_PREP_WRITE_RSP_MIN_LEN)
+    {
+        GATT_TRACE_ERROR("illegal prepare write response length, discard");
+        gatt_end_operation(p_clcb, GATT_INVALID_PDU, &value);
+        return;
+    }
+
+    STREAM_TO_UINT16 (value.handle, p);
+    STREAM_TO_UINT16 (value.offset, p);
+
+    value.len = len - 4;
+
+    memcpy (value.value, p, value.len);
+
+    if (p_clcb->op_subtype == GATT_WRITE_PREPARE)
+    {
+        p_clcb->status = GATT_SUCCESS;
+        /* application should verify handle offset
+           and value are matched or not */
+
+        gatt_end_operation(p_clcb, p_clcb->status, &value);
+    }
+    else if (p_clcb->op_subtype == GATT_WRITE )
+    {
+        if (!gatt_check_write_long_terminate(p_tcb, p_clcb, &value))
+            gatt_send_prepare_write(p_tcb, p_clcb);
+    }
+
+}
+/*******************************************************************************
+**
+** Function         gatt_process_notification
+**
+** Description      This function is called to handle the handle value indication
+**                  or handle value notification.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void gatt_process_notification(tGATT_TCB *p_tcb, UINT8 op_code,
+                               UINT16 len, UINT8 *p_data)
+{
+    tGATT_VALUE     value;
+    tGATT_REG       *p_reg;
+    UINT16          conn_id;
+    tGATT_STATUS    encrypt_status;
+    UINT8           *p= p_data, i,
+    event = (op_code == GATT_HANDLE_VALUE_NOTIF) ? GATTC_OPTYPE_NOTIFICATION : GATTC_OPTYPE_INDICATION;
+
+    GATT_TRACE_DEBUG("gatt_process_notification ");
+
+    if (len < GATT_NOTIFICATION_MIN_LEN)
+    {
+        GATT_TRACE_ERROR("illegal notification PDU length, discard");
+        return;
+    }
+
+    memset(&value, 0, sizeof(value));
+    STREAM_TO_UINT16(value.handle, p);
+    value.len = len - 2;
+    memcpy (value.value, p, value.len);
+
+    if (!GATT_HANDLE_IS_VALID(value.handle))
+    {
+        /* illegal handle, send ack now */
+        if (op_code == GATT_HANDLE_VALUE_IND)
+            attp_send_cl_msg(p_tcb, 0, GATT_HANDLE_VALUE_CONF, NULL);
+        return;
+    }
+
+    if (event == GATTC_OPTYPE_INDICATION)
+    {
+        if (p_tcb->ind_count)
+        {
+            /* this is an error case that receiving an indication but we
+               still has an indication not being acked yet.
+               For now, just log the error reset the counter.
+               Later we need to disconnect the link unconditionally.
+            */
+            GATT_TRACE_ERROR("gatt_process_notification rcv Ind. but ind_count=%d (will reset ind_count)",  p_tcb->ind_count);
+        }
+        p_tcb->ind_count = 0;
+    }
+
+    /* should notify all registered client with the handle value notificaion/indication
+       Note: need to do the indication count and start timer first then do callback
+     */
+
+    for (i = 0, p_reg = gatt_cb.cl_rcb; i < GATT_MAX_APPS; i++, p_reg++)
+    {
+        if (p_reg->in_use && p_reg->app_cb.p_cmpl_cb && (event == GATTC_OPTYPE_INDICATION))
+            p_tcb->ind_count++;
+    }
+
+    if (event == GATTC_OPTYPE_INDICATION)
+    {
+        /* start a timer for app confirmation */
+        if (p_tcb->ind_count > 0)
+            gatt_start_ind_ack_timer(p_tcb);
+        else /* no app to indicate, or invalid handle */
+            attp_send_cl_msg(p_tcb, 0, GATT_HANDLE_VALUE_CONF, NULL);
+    }
+
+    encrypt_status = gatt_get_link_encrypt_status(p_tcb);
+    for (i = 0, p_reg = gatt_cb.cl_rcb; i < GATT_MAX_APPS; i++, p_reg++)
+    {
+        if (p_reg->in_use && p_reg->app_cb.p_cmpl_cb)
+        {
+            conn_id = GATT_CREATE_CONN_ID(p_tcb->tcb_idx, p_reg->gatt_if);
+            (*p_reg->app_cb.p_cmpl_cb) (conn_id, event, encrypt_status, (tGATT_CL_COMPLETE *)&value);
+        }
+    }
+
+}
+
+/*******************************************************************************
+**
+** Function         gatt_process_read_by_type_rsp
+**
+** Description      This function is called to handle the read by type response.
+**                  read by type can be used for discovery, or read by type or
+**                  read characteristic value.
+**
+** Returns          void
+**
+*******************************************************************************/
+void gatt_process_read_by_type_rsp (tGATT_TCB *p_tcb, tGATT_CLCB *p_clcb, UINT8 op_code,
+                                    UINT16 len, UINT8 *p_data)
+{
+    tGATT_DISC_RES      result;
+    tGATT_DISC_VALUE    record_value;
+    UINT8               *p = p_data, value_len, handle_len = 2;
+    UINT16              handle = 0;
+
+    /* discovery procedure and no callback function registered */
+    if (((!p_clcb->p_reg) || (!p_clcb->p_reg->app_cb.p_disc_res_cb)) && (p_clcb->operation == GATTC_OPTYPE_DISCOVERY))
+        return;
+
+    if (len < GATT_READ_BY_TYPE_RSP_MIN_LEN)
+    {
+        GATT_TRACE_ERROR("Illegal ReadByType/ReadByGroupType Response length, discard");
+        gatt_end_operation(p_clcb, GATT_INVALID_PDU, NULL);
+        return;
+    }
+
+    STREAM_TO_UINT8(value_len, p);
+
+    if ((value_len > (p_tcb->payload_size - 2)) || (value_len > (len-1))  )
+    {
+        /* this is an error case that server's response containing a value length which is larger than MTU-2
+           or value_len > message total length -1 */
+        GATT_TRACE_ERROR("gatt_process_read_by_type_rsp: Discard response op_code=%d vale_len=%d > (MTU-2=%d or msg_len-1=%d)",
+                          op_code, value_len, (p_tcb->payload_size - 2), (len-1));
+        gatt_end_operation(p_clcb, GATT_ERROR, NULL);
+        return;
+    }
+
+    if (op_code == GATT_RSP_READ_BY_GRP_TYPE)
+        handle_len = 4;
+
+    value_len -= handle_len; /* substract the handle pairs bytes */
+    len -= 1;
+
+    while (len >= (handle_len + value_len))
+    {
+        STREAM_TO_UINT16(handle, p);
+
+        if (!GATT_HANDLE_IS_VALID(handle))
+        {
+            gatt_end_operation(p_clcb, GATT_INVALID_HANDLE, NULL);
+            return;
+        }
+
+        memset(&result, 0, sizeof(tGATT_DISC_RES));
+        memset(&record_value, 0, sizeof(tGATT_DISC_VALUE));
+
+        result.handle = handle;
+        result.type.len = 2;
+        result.type.uu.uuid16 = disc_type_to_uuid[p_clcb->op_subtype];
+
+        /* discover all services */
+        if (p_clcb->operation == GATTC_OPTYPE_DISCOVERY &&
+            p_clcb->op_subtype == GATT_DISC_SRVC_ALL &&
+            op_code == GATT_RSP_READ_BY_GRP_TYPE)
+        {
+            STREAM_TO_UINT16(handle, p);
+
+            if (!GATT_HANDLE_IS_VALID(handle))
+            {
+                gatt_end_operation(p_clcb, GATT_INVALID_HANDLE, NULL);
+                return;
+            }
+            else
+            {
+                record_value.group_value.e_handle = handle;
+                if (!gatt_parse_uuid_from_cmd(&record_value.group_value.service_type, value_len, &p))
+                {
+                    GATT_TRACE_ERROR("discover all service response parsing failure");
+                    break;
+                }
+            }
+        }
+        /* discover included service */
+        else if (p_clcb->operation == GATTC_OPTYPE_DISCOVERY && p_clcb->op_subtype == GATT_DISC_INC_SRVC)
+        {
+            STREAM_TO_UINT16(record_value.incl_service.s_handle, p);
+            STREAM_TO_UINT16(record_value.incl_service.e_handle, p);
+
+            if (!GATT_HANDLE_IS_VALID(record_value.incl_service.s_handle) ||
+                !GATT_HANDLE_IS_VALID(record_value.incl_service.e_handle))
+            {
+                gatt_end_operation(p_clcb, GATT_INVALID_HANDLE, NULL);
+                return;
+            }
+
+            if(value_len == 6)
+            {
+                STREAM_TO_UINT16(record_value.incl_service.service_type.uu.uuid16, p);
+                record_value.incl_service.service_type.len = LEN_UUID_16;
+            }
+            else if (value_len == 4)
+            {
+                p_clcb->s_handle = record_value.incl_service.s_handle;
+                p_clcb->read_uuid128.wait_for_read_rsp = TRUE;
+                p_clcb->read_uuid128.next_disc_start_hdl = handle + 1;
+                memcpy(&p_clcb->read_uuid128.result, &result, sizeof(result));
+                memcpy(&p_clcb->read_uuid128.result.value, &record_value, sizeof (result.value));
+                p_clcb->op_subtype |= 0x90;
+                gatt_act_read(p_clcb, 0);
+                return;
+            }
+            else
+            {
+               GATT_TRACE_ERROR("gatt_process_read_by_type_rsp INCL_SRVC failed with invalid data value_len=%d", value_len);
+               gatt_end_operation(p_clcb, GATT_INVALID_PDU, (void *)p);
+               return;
+            }
+        }
+        /* read by type */
+        else if (p_clcb->operation == GATTC_OPTYPE_READ && p_clcb->op_subtype == GATT_READ_BY_TYPE)
+        {
+            p_clcb->counter = len - 2;
+            p_clcb->s_handle = handle;
+            if ( p_clcb->counter == (p_clcb->p_tcb->payload_size -4))
+            {
+                p_clcb->op_subtype = GATT_READ_BY_HANDLE;
+                if (!p_clcb->p_attr_buf)
+                    p_clcb->p_attr_buf = (UINT8 *)osi_malloc(GATT_MAX_ATTR_LEN);
+                if (p_clcb->counter <= GATT_MAX_ATTR_LEN) {
+                    memcpy(p_clcb->p_attr_buf, p, p_clcb->counter);
+                    gatt_act_read(p_clcb, p_clcb->counter);
+                } else {
+                    gatt_end_operation(p_clcb, GATT_INTERNAL_ERROR, (void *)p);
+                }
+            }
+            else
+            {
+                 gatt_end_operation(p_clcb, GATT_SUCCESS, (void *)p);
+            }
+            return;
+        }
+        else /* discover characterisitic */
+        {
+            STREAM_TO_UINT8 (record_value.dclr_value.char_prop, p);
+            STREAM_TO_UINT16(record_value.dclr_value.val_handle, p);
+            if (!GATT_HANDLE_IS_VALID(record_value.dclr_value.val_handle))
+            {
+                gatt_end_operation(p_clcb, GATT_INVALID_HANDLE, NULL);
+                return;
+            }
+            if (!gatt_parse_uuid_from_cmd(&record_value.dclr_value.char_uuid, (UINT16)(value_len - 3), &p))
+            {
+                gatt_end_operation(p_clcb, GATT_SUCCESS, NULL);
+                /* invalid format, and skip the result */
+                return;
+            }
+
+            /* UUID not matching */
+            if (!gatt_uuid_compare(record_value.dclr_value.char_uuid, p_clcb->uuid))
+            {
+                len -= (value_len + 2);
+                continue; /* skip the result, and look for next one */
+            }
+            else if (p_clcb->operation == GATTC_OPTYPE_READ)
+            /* UUID match for read characteristic value */
+            {
+                /* only read the first matching UUID characteristic value, and
+                  discard the rest results */
+                p_clcb->s_handle = record_value.dclr_value.val_handle;
+                p_clcb->op_subtype |= 0x80;
+                gatt_act_read(p_clcb, 0);
+                return;
+            }
+        }
+        len -= (value_len + handle_len);
+
+        /* result is (handle, 16bits UUID) pairs */
+        memcpy (&result.value, &record_value, sizeof (result.value));
+
+        /* send callback if is discover procedure */
+        if (p_clcb->operation == GATTC_OPTYPE_DISCOVERY && p_clcb->p_reg->app_cb.p_disc_res_cb)
+            (*p_clcb->p_reg->app_cb.p_disc_res_cb)(p_clcb->conn_id, p_clcb->op_subtype, &result);
+    }
+
+    p_clcb->s_handle = (handle == 0) ? 0 : (handle + 1);
+
+    if (p_clcb->operation == GATTC_OPTYPE_DISCOVERY)
+    {
+        /* initiate another request */
+        gatt_act_discovery(p_clcb) ;
+    }
+    else /* read characteristic value */
+    {
+        gatt_act_read(p_clcb, 0);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         gatt_process_read_rsp
+**
+** Description      This function is called to handle the read BLOB response
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void gatt_process_read_rsp(tGATT_TCB *p_tcb, tGATT_CLCB *p_clcb,  UINT8 op_code,
+                           UINT16 len, UINT8 *p_data)
+{
+    UINT16      offset = p_clcb->counter;
+    UINT8       * p= p_data;
+
+    UNUSED(op_code);
+
+    if (p_clcb->operation == GATTC_OPTYPE_READ)
+    {
+        if (p_clcb->op_subtype != GATT_READ_BY_HANDLE)
+        {
+            p_clcb->counter = len;
+            gatt_end_operation(p_clcb, GATT_SUCCESS, (void *)p);
+        }
+        else
+        {
+
+            /* allocate GKI buffer holding up long attribute value  */
+            if (!p_clcb->p_attr_buf)
+                p_clcb->p_attr_buf = (UINT8 *)osi_malloc(GATT_MAX_ATTR_LEN);
+
+            /* copy attrobute value into cb buffer  */
+            if (offset < GATT_MAX_ATTR_LEN) {
+                if ((len + offset) > GATT_MAX_ATTR_LEN)
+                    len = GATT_MAX_ATTR_LEN - offset;
+
+                p_clcb->counter += len;
+
+                memcpy(p_clcb->p_attr_buf + offset, p, len);
+
+                /* send next request if needed  */
+
+                if (len == (p_tcb->payload_size - 1) && /* full packet for read or read blob rsp */
+                    len + offset < GATT_MAX_ATTR_LEN)
+                {
+                    GATT_TRACE_DEBUG("full pkt issue read blob for remianing bytes old offset=%d len=%d new offset=%d",
+                                      offset, len, p_clcb->counter);
+                    gatt_act_read(p_clcb, p_clcb->counter);
+                }
+                else /* end of request, send callback */
+                {
+                    gatt_end_operation(p_clcb, GATT_SUCCESS, (void *)p_clcb->p_attr_buf);
+                }
+            }
+            else /* exception, should not happen */
+            {
+                GATT_TRACE_ERROR("attr offset = %d p_attr_buf = %d ", offset, p_clcb->p_attr_buf);
+                gatt_end_operation(p_clcb, GATT_NO_RESOURCES, (void *)p_clcb->p_attr_buf);
+            }
+        }
+    }
+    else
+    {
+        if (p_clcb->operation == GATTC_OPTYPE_DISCOVERY &&
+            p_clcb->op_subtype == GATT_DISC_INC_SRVC &&
+            p_clcb->read_uuid128.wait_for_read_rsp )
+        {
+            p_clcb->s_handle = p_clcb->read_uuid128.next_disc_start_hdl;
+            p_clcb->read_uuid128.wait_for_read_rsp = FALSE;
+            if (len == LEN_UUID_128)
+            {
+
+                memcpy(p_clcb->read_uuid128.result.value.incl_service.service_type.uu.uuid128, p, len);
+                p_clcb->read_uuid128.result.value.incl_service.service_type.len = LEN_UUID_128;
+                if ( p_clcb->p_reg->app_cb.p_disc_res_cb)
+                    (*p_clcb->p_reg->app_cb.p_disc_res_cb)(p_clcb->conn_id, p_clcb->op_subtype, &p_clcb->read_uuid128.result);
+                gatt_act_discovery(p_clcb) ;
+            }
+            else
+            {
+                gatt_end_operation(p_clcb, GATT_INVALID_PDU, (void *)p);
+            }
+        }
+    }
+
+}
+
+
+/*******************************************************************************
+**
+** Function         gatt_process_handle_rsp
+**
+** Description      This function is called to handle the write response
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void gatt_process_handle_rsp(tGATT_CLCB *p_clcb)
+{
+    gatt_end_operation(p_clcb, GATT_SUCCESS, NULL);
+}
+/*******************************************************************************
+**
+** Function         gatt_process_mtu_rsp
+**
+** Description      This function is called to process the configure MTU response.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void gatt_process_mtu_rsp(tGATT_TCB *p_tcb, tGATT_CLCB *p_clcb, UINT16 len, UINT8 *p_data)
+{
+    UINT16 mtu;
+    tGATT_STATUS    status = GATT_SUCCESS;
+
+    if (len < GATT_MTU_RSP_MIN_LEN)
+    {
+        GATT_TRACE_ERROR("invalid MTU response PDU received, discard.");
+        status = GATT_INVALID_PDU;
+    }
+    else
+    {
+    STREAM_TO_UINT16(mtu, p_data);
+
+    if (mtu < p_tcb->payload_size && mtu >= GATT_DEF_BLE_MTU_SIZE)
+        p_tcb->payload_size = mtu;
+    }
+
+    l2cble_set_fixed_channel_tx_data_length(p_tcb->peer_bda, L2CAP_ATT_CID, p_tcb->payload_size);
+    gatt_end_operation(p_clcb, status, NULL);
+}
+/*******************************************************************************
+**
+** Function         gatt_cmd_to_rsp_code
+**
+** Description      The function convert a ATT command op code into the corresponding
+**                  response code assume no error occurs.
+**
+** Returns          response code.
+**
+*******************************************************************************/
+UINT8 gatt_cmd_to_rsp_code (UINT8 cmd_code)
+{
+    UINT8   rsp_code  = 0;
+
+    if (cmd_code > 1 && cmd_code != GATT_CMD_WRITE)
+    {
+        rsp_code = cmd_code + 1;
+    }
+    return rsp_code;
+}
+/*******************************************************************************
+**
+** Function         gatt_cl_send_next_cmd_inq
+**
+** Description      Find next command in queue and sent to server
+**
+** Returns          TRUE if command sent, otherwise FALSE.
+**
+*******************************************************************************/
+BOOLEAN gatt_cl_send_next_cmd_inq(tGATT_TCB *p_tcb)
+{
+    tGATT_CMD_Q  *p_cmd = &p_tcb->cl_cmd_q[p_tcb->pending_cl_req];
+    BOOLEAN     sent = FALSE;
+    UINT8       rsp_code;
+    tGATT_CLCB   *p_clcb = NULL;
+    tGATT_STATUS att_ret = GATT_SUCCESS;
+
+    while (!sent &&
+           p_tcb->pending_cl_req != p_tcb->next_slot_inq &&
+           p_cmd->to_send && p_cmd->p_cmd != NULL)
+    {
+        att_ret = attp_send_msg_to_l2cap(p_tcb, p_cmd->p_cmd);
+
+        if (att_ret == GATT_SUCCESS || att_ret == GATT_CONGESTED)
+        {
+            sent = TRUE;
+            p_cmd->to_send = FALSE;
+            p_cmd->p_cmd = NULL;
+
+            /* dequeue the request if is write command or sign write */
+            if (p_cmd->op_code != GATT_CMD_WRITE && p_cmd->op_code != GATT_SIGN_CMD_WRITE)
+            {
+                gatt_start_rsp_timer (p_cmd->clcb_idx);
+            }
+            else
+            {
+                p_clcb = gatt_cmd_dequeue(p_tcb, &rsp_code);
+
+                /* if no ack needed, keep sending */
+                if (att_ret == GATT_SUCCESS)
+                    sent = FALSE;
+
+                p_cmd = &p_tcb->cl_cmd_q[p_tcb->pending_cl_req];
+                /* send command complete callback here */
+                gatt_end_operation(p_clcb, att_ret, NULL);
+            }
+        }
+        else
+        {
+            GATT_TRACE_ERROR("gatt_cl_send_next_cmd_inq: L2CAP sent error");
+
+            memset(p_cmd, 0, sizeof(tGATT_CMD_Q));
+            p_tcb->pending_cl_req ++;
+            p_cmd = &p_tcb->cl_cmd_q[p_tcb->pending_cl_req];
+        }
+
+    }
+    return sent;
+}
+
+/*******************************************************************************
+**
+** Function         gatt_client_handle_server_rsp
+**
+** Description      This function is called to handle the server response to
+**                  client.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void gatt_client_handle_server_rsp (tGATT_TCB *p_tcb, UINT8 op_code,
+                                    UINT16 len, UINT8 *p_data)
+{
+    tGATT_CLCB   *p_clcb = NULL;
+    UINT8        rsp_code;
+
+    if (op_code != GATT_HANDLE_VALUE_IND && op_code != GATT_HANDLE_VALUE_NOTIF)
+    {
+        p_clcb = gatt_cmd_dequeue(p_tcb, &rsp_code);
+
+        rsp_code = gatt_cmd_to_rsp_code(rsp_code);
+
+        if (p_clcb == NULL || (rsp_code != op_code && op_code != GATT_RSP_ERROR))
+        {
+            GATT_TRACE_WARNING ("ATT - Ignore wrong response. Receives (%02x) \
+                                Request(%02x) Ignored", op_code, rsp_code);
+
+            return;
+        }
+        else
+        {
+            alarm_cancel(p_clcb->gatt_rsp_timer_ent);
+            p_clcb->retry_count = 0;
+        }
+    }
+    /* the size of the message may not be bigger than the local max PDU size*/
+    /* The message has to be smaller than the agreed MTU, len does not count op_code */
+    if (len >= p_tcb->payload_size)
+    {
+        GATT_TRACE_ERROR("invalid response/indicate pkt size: %d, PDU size: %d", len + 1, p_tcb->payload_size);
+        if (op_code != GATT_HANDLE_VALUE_NOTIF &&
+            op_code != GATT_HANDLE_VALUE_IND)
+            gatt_end_operation(p_clcb, GATT_ERROR, NULL);
+    }
+    else
+    {
+        switch (op_code)
+        {
+            case GATT_RSP_ERROR:
+                gatt_process_error_rsp(p_tcb, p_clcb, op_code, len, p_data);
+                break;
+
+            case GATT_RSP_MTU:       /* 2 bytes mtu */
+                gatt_process_mtu_rsp(p_tcb, p_clcb, len ,p_data);
+                break;
+
+            case GATT_RSP_FIND_INFO:
+                gatt_process_read_info_rsp(p_tcb, p_clcb, op_code, len, p_data);
+                break;
+
+            case GATT_RSP_READ_BY_TYPE:
+            case GATT_RSP_READ_BY_GRP_TYPE:
+                gatt_process_read_by_type_rsp(p_tcb, p_clcb, op_code, len, p_data);
+                break;
+
+            case GATT_RSP_READ:
+            case GATT_RSP_READ_BLOB:
+            case GATT_RSP_READ_MULTI:
+                gatt_process_read_rsp(p_tcb, p_clcb, op_code, len, p_data);
+                break;
+
+            case GATT_RSP_FIND_TYPE_VALUE: /* disc service with UUID */
+                gatt_process_find_type_value_rsp(p_tcb, p_clcb, len, p_data);
+                break;
+
+            case GATT_RSP_WRITE:
+                gatt_process_handle_rsp(p_clcb);
+                break;
+
+            case GATT_RSP_PREPARE_WRITE:
+                gatt_process_prep_write_rsp(p_tcb, p_clcb, op_code, len, p_data);
+                break;
+
+            case GATT_RSP_EXEC_WRITE:
+                gatt_end_operation(p_clcb, p_clcb->status, NULL);
+                break;
+
+            case GATT_HANDLE_VALUE_NOTIF:
+            case GATT_HANDLE_VALUE_IND:
+                gatt_process_notification(p_tcb, op_code, len, p_data);
+                break;
+
+            default:
+                GATT_TRACE_ERROR("Unknown opcode = %d", op_code);
+                break;
+        }
+    }
+
+    if (op_code != GATT_HANDLE_VALUE_IND && op_code != GATT_HANDLE_VALUE_NOTIF)
+    {
+        gatt_cl_send_next_cmd_inq(p_tcb);
+    }
+
+    return;
+}
+
+#endif  /* BLE_INCLUDED */
diff --git a/rtkbt/code/bt/stack/gatt/gatt_db.c b/rtkbt/code/bt/stack/gatt/gatt_db.c
new file mode 100755
index 0000000..cffcc70
--- /dev/null
+++ b/rtkbt/code/bt/stack/gatt/gatt_db.c
@@ -0,0 +1,1207 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  this file contains GATT database building and query functions
+ *
+ ******************************************************************************/
+
+#include "bt_target.h"
+
+#if BLE_INCLUDED == TRUE
+
+#include "bt_trace.h"
+#include "bt_utils.h"
+
+#include <stdio.h>
+#include <string.h>
+#include "gatt_int.h"
+#include "l2c_api.h"
+#include "btm_int.h"
+
+/********************************************************************************
+**              L O C A L    F U N C T I O N     P R O T O T Y P E S            *
+*********************************************************************************/
+static BOOLEAN allocate_svc_db_buf(tGATT_SVC_DB *p_db);
+static void *allocate_attr_in_db(tGATT_SVC_DB *p_db, tBT_UUID *p_uuid, tGATT_PERM perm);
+static BOOLEAN deallocate_attr_in_db(tGATT_SVC_DB *p_db, void *p_attr);
+static BOOLEAN copy_extra_byte_in_db(tGATT_SVC_DB *p_db, void **p_dst, UINT16 len);
+
+static BOOLEAN gatts_db_add_service_declaration(tGATT_SVC_DB *p_db, tBT_UUID *p_service, BOOLEAN is_pri);
+static tGATT_STATUS gatts_send_app_read_request(tGATT_TCB *p_tcb, UINT8 op_code,
+                                                UINT16 handle, UINT16 offset, UINT32 trans_id);
+
+/*******************************************************************************
+**
+** Function         gatts_init_service_db
+**
+** Description      This function initialize a memory space to be a service database.
+**
+** Parameter        p_db: database pointer.
+**                  len: size of the memory space.
+**
+** Returns          Status of te operation.
+**
+*******************************************************************************/
+BOOLEAN gatts_init_service_db (tGATT_SVC_DB *p_db, tBT_UUID *p_service,  BOOLEAN is_pri,
+                               UINT16 s_hdl, UINT16 num_handle)
+{
+    p_db->svc_buffer = fixed_queue_new(SIZE_MAX);
+
+    if (!allocate_svc_db_buf(p_db))
+    {
+        GATT_TRACE_ERROR("gatts_init_service_db failed, no resources");
+        return FALSE;
+    }
+
+    GATT_TRACE_DEBUG("gatts_init_service_db");
+    GATT_TRACE_DEBUG("s_hdl = %d num_handle = %d", s_hdl, num_handle );
+
+    /* update service database information */
+    p_db->next_handle   = s_hdl;
+    p_db->end_handle    = s_hdl + num_handle;
+
+    return gatts_db_add_service_declaration(p_db, p_service, is_pri);
+}
+
+/*******************************************************************************
+**
+** Function         gatts_init_service_db
+**
+** Description      This function initialize a memory space to be a service database.
+**
+** Parameter        p_db: database pointer.
+**                  len: size of the memory space.
+**
+** Returns          Status of te operation.
+**
+*******************************************************************************/
+tBT_UUID * gatts_get_service_uuid (tGATT_SVC_DB *p_db)
+{
+    if (!p_db || !p_db->p_attr_list)
+    {
+        GATT_TRACE_ERROR("service DB empty");
+
+        return NULL;
+    }
+    else
+    {
+        return &((tGATT_ATTR16 *)p_db->p_attr_list)->p_value->uuid;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         gatts_check_attr_readability
+**
+** Description      check attribute readability
+**
+** Returns          status of operation.
+**
+*******************************************************************************/
+static tGATT_STATUS gatts_check_attr_readability(tGATT_ATTR16 *p_attr,
+                                                 UINT16 offset,
+                                                 BOOLEAN read_long,
+                                                 tGATT_SEC_FLAG sec_flag,
+                                                 UINT8 key_size)
+{
+    UINT16          min_key_size;
+    tGATT_PERM      perm = p_attr->permission;
+
+    UNUSED(offset);
+    min_key_size = (((perm & GATT_ENCRYPT_KEY_SIZE_MASK) >> 12));
+    if (min_key_size != 0 )
+    {
+        min_key_size +=6;
+    }
+
+    if (!(perm & GATT_READ_ALLOWED))
+    {
+        GATT_TRACE_ERROR( "GATT_READ_NOT_PERMIT");
+        return GATT_READ_NOT_PERMIT;
+    }
+
+    if ((perm & GATT_READ_AUTH_REQUIRED ) && !(sec_flag & GATT_SEC_FLAG_LKEY_UNAUTHED) &&
+        !(sec_flag & BTM_SEC_FLAG_ENCRYPTED))
+    {
+        GATT_TRACE_ERROR( "GATT_INSUF_AUTHENTICATION");
+        return GATT_INSUF_AUTHENTICATION;
+    }
+
+    if ((perm & GATT_READ_MITM_REQUIRED ) && !(sec_flag & GATT_SEC_FLAG_LKEY_AUTHED))
+    {
+        GATT_TRACE_ERROR( "GATT_INSUF_AUTHENTICATION: MITM Required");
+        return GATT_INSUF_AUTHENTICATION;
+    }
+
+    if ((perm & GATT_READ_ENCRYPTED_REQUIRED ) && !(sec_flag & GATT_SEC_FLAG_ENCRYPTED))
+    {
+        GATT_TRACE_ERROR( "GATT_INSUF_ENCRYPTION");
+        return GATT_INSUF_ENCRYPTION;
+    }
+
+    if ( (perm & GATT_READ_ENCRYPTED_REQUIRED) && (sec_flag & GATT_SEC_FLAG_ENCRYPTED) && (key_size < min_key_size))
+    {
+        GATT_TRACE_ERROR( "GATT_INSUF_KEY_SIZE");
+        return GATT_INSUF_KEY_SIZE;
+    }
+
+
+    if (read_long)
+    {
+        switch (p_attr->uuid)
+        {
+            case GATT_UUID_PRI_SERVICE:
+            case GATT_UUID_SEC_SERVICE:
+            case GATT_UUID_CHAR_DECLARE:
+            case GATT_UUID_INCLUDE_SERVICE:
+            case GATT_UUID_CHAR_EXT_PROP:
+            case GATT_UUID_CHAR_CLIENT_CONFIG:
+            case GATT_UUID_CHAR_SRVR_CONFIG:
+            case GATT_UUID_CHAR_PRESENT_FORMAT:
+                GATT_TRACE_ERROR("GATT_NOT_LONG");
+                return GATT_NOT_LONG;
+
+            default:
+                break;
+        }
+    }
+
+    return GATT_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         read_attr_value
+**
+** Description      Utility function to read an attribute value.
+**
+** Parameter        p_attr: pointer to the attribute to read.
+**                  offset: read offset.
+**                  p_value: output parameter to carry out the attribute value.
+**                  p_len: output parameter to carry out the attribute length.
+**                  read_long: this is a read blob request.
+**                  mtu: MTU
+**                  sec_flag: current link security status.
+**                  key_size: encryption key size.
+**
+** Returns          status of operation.
+**
+*******************************************************************************/
+static tGATT_STATUS read_attr_value (void *p_attr,
+                                     UINT16 offset,
+                                     UINT8 **p_data,
+                                     BOOLEAN read_long,
+                                     UINT16 mtu,
+                                     UINT16 *p_len,
+                                     tGATT_SEC_FLAG sec_flag,
+                                     UINT8 key_size)
+{
+    UINT16          len = 0, uuid16 = 0;
+    UINT8           *p = *p_data;
+    tGATT_STATUS    status;
+    tGATT_ATTR16    *p_attr16  = (tGATT_ATTR16  *)p_attr;
+
+    GATT_TRACE_DEBUG("read_attr_value uuid=0x%04x perm=0x%0x sec_flag=0x%x offset=%d read_long=%d",
+                      p_attr16->uuid,
+                      p_attr16->permission,
+                      sec_flag,
+                      offset,
+                      read_long);
+
+    status = gatts_check_attr_readability((tGATT_ATTR16 *)p_attr, offset, read_long, sec_flag, key_size);
+
+    if (status != GATT_SUCCESS)
+        return status;
+
+    if (p_attr16->uuid_type == GATT_ATTR_UUID_TYPE_16)
+        uuid16 = p_attr16->uuid;
+
+    status = GATT_NO_RESOURCES;
+
+    if (uuid16 == GATT_UUID_PRI_SERVICE || uuid16 == GATT_UUID_SEC_SERVICE)
+    {
+        len = p_attr16->p_value->uuid.len;
+        if (mtu >= p_attr16->p_value->uuid.len)
+        {
+            gatt_build_uuid_to_stream(&p, p_attr16->p_value->uuid);
+            status = GATT_SUCCESS;
+        }
+    }
+    else if (uuid16 == GATT_UUID_CHAR_DECLARE)
+    {
+        len = (((tGATT_ATTR16 *)(p_attr16->p_next))->uuid_type == GATT_ATTR_UUID_TYPE_16) ? 5 :19;
+
+        if (mtu >= len)
+        {
+            UINT8_TO_STREAM(p, p_attr16->p_value->char_decl.property);
+            UINT16_TO_STREAM(p, p_attr16->p_value->char_decl.char_val_handle);
+
+            if (((tGATT_ATTR16 *)(p_attr16->p_next))->uuid_type == GATT_ATTR_UUID_TYPE_16)
+            {
+                UINT16_TO_STREAM(p, ((tGATT_ATTR16 *)(p_attr16->p_next))->uuid);
+            }
+            /* convert a 32bits UUID to 128 bits */
+            else if (((tGATT_ATTR32 *)(p_attr16->p_next))->uuid_type == GATT_ATTR_UUID_TYPE_32)
+            {
+                gatt_convert_uuid32_to_uuid128 (p, ((tGATT_ATTR32 *)(p_attr16->p_next))->uuid);
+                p += LEN_UUID_128;
+            }
+            else
+            {
+                ARRAY_TO_STREAM (p, ((tGATT_ATTR128 *)(p_attr16->p_next))->uuid, LEN_UUID_128);
+            }
+            status = GATT_SUCCESS;
+        }
+
+    }
+    else if (uuid16 == GATT_UUID_INCLUDE_SERVICE)
+    {
+        if (p_attr16->p_value->incl_handle.service_type.len == LEN_UUID_16)
+            len = 6;
+        else
+            len = 4;
+
+        if (mtu >= len)
+        {
+            UINT16_TO_STREAM(p, p_attr16->p_value->incl_handle.s_handle);
+            UINT16_TO_STREAM(p, p_attr16->p_value->incl_handle.e_handle);
+
+            if (p_attr16->p_value->incl_handle.service_type.len == LEN_UUID_16)
+            {
+                UINT16_TO_STREAM(p, p_attr16->p_value->incl_handle.service_type.uu.uuid16);
+            }
+            status = GATT_SUCCESS;
+        }
+    }
+    else /* characteristic description or characteristic value */
+    {
+        status = GATT_PENDING;
+    }
+
+    *p_len = len;
+    *p_data = p;
+    return status;
+}
+
+/*******************************************************************************
+**
+** Function         gatts_db_read_attr_value_by_type
+**
+** Description      Query attribute value by attribute type.
+**
+** Parameter        p_db: pointer to the attribute database.
+**                  p_rsp: Read By type response data.
+**                  s_handle: starting handle of the range we are looking for.
+**                  e_handle: ending handle of the range we are looking for.
+**                  type: Attribute type.
+**                  mtu: MTU.
+**                  sec_flag: current link security status.
+**                  key_size: encryption key size.
+**
+** Returns          Status of the operation.
+**
+*******************************************************************************/
+tGATT_STATUS gatts_db_read_attr_value_by_type (tGATT_TCB   *p_tcb,
+                                               tGATT_SVC_DB    *p_db,
+                                               UINT8        op_code,
+                                               BT_HDR      *p_rsp,
+                                               UINT16       s_handle,
+                                               UINT16       e_handle,
+                                               tBT_UUID     type,
+                                               UINT16      *p_len,
+                                               tGATT_SEC_FLAG sec_flag,
+                                               UINT8        key_size,
+                                               UINT32       trans_id,
+                                               UINT16       *p_cur_handle)
+{
+    tGATT_STATUS status = GATT_NOT_FOUND;
+    tGATT_ATTR16  *p_attr;
+    UINT16      len = 0;
+    UINT8       *p = (UINT8 *)(p_rsp + 1) + p_rsp->len + L2CAP_MIN_OFFSET;
+    tBT_UUID    attr_uuid;
+
+    if (p_db && p_db->p_attr_list)
+    {
+        p_attr = (tGATT_ATTR16 *)p_db->p_attr_list;
+
+        while (p_attr && p_attr->handle <= e_handle)
+        {
+            if (p_attr->uuid_type == GATT_ATTR_UUID_TYPE_16)
+            {
+                attr_uuid.len = LEN_UUID_16;
+                attr_uuid.uu.uuid16 = p_attr->uuid;
+            }
+            else if (p_attr->uuid_type == GATT_ATTR_UUID_TYPE_32)
+            {
+                attr_uuid.len = LEN_UUID_32;
+                attr_uuid.uu.uuid32 = ((tGATT_ATTR32 *)p_attr)->uuid;
+            }
+            else
+            {
+                attr_uuid.len = LEN_UUID_128;
+                memcpy(attr_uuid.uu.uuid128, ((tGATT_ATTR128 *)p_attr)->uuid, LEN_UUID_128);
+            }
+
+            if (p_attr->handle >= s_handle && gatt_uuid_compare(type, attr_uuid))
+            {
+                if (*p_len <= 2)
+                {
+                    status = GATT_NO_RESOURCES;
+                    break;
+                }
+
+                UINT16_TO_STREAM (p, p_attr->handle);
+
+                status = read_attr_value ((void *)p_attr, 0, &p, FALSE, (UINT16)(*p_len -2), &len, sec_flag, key_size);
+
+                if (status == GATT_PENDING)
+                {
+                    status = gatts_send_app_read_request(p_tcb, op_code, p_attr->handle, 0, trans_id);
+
+                    /* one callback at a time */
+                    break;
+                }
+                else if (status == GATT_SUCCESS)
+                {
+                    if (p_rsp->offset == 0)
+                        p_rsp->offset = len + 2;
+
+                    if (p_rsp->offset == len + 2)
+                    {
+                        p_rsp->len += (len  + 2);
+                        *p_len -= (len + 2);
+                    }
+                    else
+                    {
+                        GATT_TRACE_ERROR("format mismatch");
+                        status = GATT_NO_RESOURCES;
+                        break;
+                    }
+                }
+                else
+                {
+                    *p_cur_handle = p_attr->handle;
+                    break;
+                }
+            }
+            p_attr = (tGATT_ATTR16 *)p_attr->p_next;
+        }
+    }
+
+#if (defined(BLE_DELAY_REQUEST_ENC) && (BLE_DELAY_REQUEST_ENC == TRUE))
+    UINT8 flag = 0;
+    if (BTM_GetSecurityFlags(p_tcb->peer_bda, &flag))
+    {
+        if ((p_tcb->att_lcid == L2CAP_ATT_CID) && (status == GATT_PENDING) &&
+            (type.uu.uuid16 == GATT_UUID_GAP_DEVICE_NAME))
+        {
+            if ((flag & (BTM_SEC_LINK_KEY_KNOWN | BTM_SEC_FLAG_ENCRYPTED)) ==
+                 BTM_SEC_LINK_KEY_KNOWN)
+            {
+                tACL_CONN *p = btm_bda_to_acl(p_tcb->peer_bda, BT_TRANSPORT_LE);
+                if ((p != NULL) && (p->link_role == BTM_ROLE_MASTER))
+                    btm_ble_set_encryption(p_tcb->peer_bda, BTM_BLE_SEC_ENCRYPT, p->link_role);
+            }
+        }
+    }
+#endif
+    return status;
+}
+
+/*******************************************************************************
+**
+** Function         gatts_add_included_service
+**
+** Description      This function adds an included service into a database.
+**
+** Parameter        p_db: database pointer.
+**                  inc_srvc_type: included service type.
+**
+** Returns          Status of the operation.
+**
+*******************************************************************************/
+UINT16 gatts_add_included_service (tGATT_SVC_DB *p_db, UINT16 s_handle, UINT16 e_handle,
+                                   tBT_UUID service)
+{
+    tGATT_ATTR16      *p_attr;
+    tBT_UUID         uuid = {LEN_UUID_16, {GATT_UUID_INCLUDE_SERVICE}};
+
+    GATT_TRACE_DEBUG("gatts_add_included_service: s_hdl = 0x%04x e_hdl = 0x%04x uuid = 0x%04x",
+                      s_handle, e_handle, service.uu.uuid16);
+
+    if (service.len == 0 || s_handle == 0 || e_handle == 0)
+    {
+        GATT_TRACE_ERROR("gatts_add_included_service Illegal Params.");
+        return 0;
+    }
+
+    if ((p_attr = (tGATT_ATTR16 *) allocate_attr_in_db(p_db, &uuid, GATT_PERM_READ)) != NULL)
+    {
+        if (copy_extra_byte_in_db(p_db, (void **)&p_attr->p_value, sizeof(tGATT_INCL_SRVC)))
+        {
+            p_attr->p_value->incl_handle.s_handle = s_handle;
+            p_attr->p_value->incl_handle.e_handle = e_handle;
+            memcpy(&p_attr->p_value->incl_handle.service_type, &service, sizeof(tBT_UUID));
+
+            return p_attr->handle;
+        }
+        else
+        {
+            deallocate_attr_in_db(p_db, p_attr);
+        }
+    }
+
+    return 0;
+}
+
+/*******************************************************************************
+**
+** Function         gatts_add_characteristic
+**
+** Description      This function add a characteristics and its descriptor into
+**                  a servce identified by the service database pointer.
+**
+** Parameter        p_db: database pointer.
+**                  perm: permission (authentication and key size requirements)
+**                  property: property of the characteristic.
+**                  p_char: characteristic value information.
+**
+** Returns          Status of te operation.
+**
+*******************************************************************************/
+UINT16 gatts_add_characteristic (tGATT_SVC_DB *p_db, tGATT_PERM perm,
+                                 tGATT_CHAR_PROP property,
+                                 tBT_UUID * p_char_uuid)
+{
+    tGATT_ATTR16     *p_char_decl, *p_char_val;
+    tBT_UUID        uuid = {LEN_UUID_16, {GATT_UUID_CHAR_DECLARE}};
+
+    GATT_TRACE_DEBUG("gatts_add_characteristic perm=0x%0x property=0x%0x", perm, property);
+
+    if ((p_char_decl = (tGATT_ATTR16 *)allocate_attr_in_db(p_db, &uuid, GATT_PERM_READ)) != NULL)
+    {
+        if (!copy_extra_byte_in_db(p_db, (void **)&p_char_decl->p_value, sizeof(tGATT_CHAR_DECL)))
+        {
+            deallocate_attr_in_db(p_db, p_char_decl);
+            return 0;
+        }
+
+        p_char_val = (tGATT_ATTR16 *)allocate_attr_in_db(p_db, p_char_uuid, perm);
+
+        if (p_char_val == NULL)
+        {
+            deallocate_attr_in_db(p_db, p_char_decl);
+            return 0;
+        }
+
+        p_char_decl->p_value->char_decl.property = property;
+        p_char_decl->p_value->char_decl.char_val_handle  = p_char_val->handle;
+
+        p_char_val->p_value = NULL;
+
+        return p_char_val->handle;
+    }
+
+    return 0;
+}
+
+/*******************************************************************************
+**
+** Function         gatt_convertchar_descr_type
+**
+** Description      This function convert a char descript UUID into descriptor type.
+**
+** Returns          descriptor type.
+**
+*******************************************************************************/
+UINT8 gatt_convertchar_descr_type(tBT_UUID *p_descr_uuid)
+{
+    tBT_UUID std_descr = {LEN_UUID_16, {GATT_UUID_CHAR_EXT_PROP}};
+
+    if (gatt_uuid_compare(std_descr, * p_descr_uuid))
+        return GATT_DESCR_EXT_DSCPTOR;
+
+    std_descr.uu.uuid16 ++;
+    if (gatt_uuid_compare(std_descr,  * p_descr_uuid))
+        return GATT_DESCR_USER_DSCPTOR;
+
+    std_descr.uu.uuid16 ++;
+    if (gatt_uuid_compare(std_descr,  * p_descr_uuid))
+        return GATT_DESCR_CLT_CONFIG;
+
+    std_descr.uu.uuid16 ++;
+    if (gatt_uuid_compare(std_descr,  * p_descr_uuid))
+        return GATT_DESCR_SVR_CONFIG;
+
+    std_descr.uu.uuid16 ++;
+    if (gatt_uuid_compare(std_descr,  * p_descr_uuid))
+        return GATT_DESCR_PRES_FORMAT;
+
+    std_descr.uu.uuid16 ++;
+    if (gatt_uuid_compare(std_descr,  * p_descr_uuid))
+        return GATT_DESCR_AGGR_FORMAT;
+
+    std_descr.uu.uuid16 ++;
+    if (gatt_uuid_compare(std_descr,  * p_descr_uuid))
+        return GATT_DESCR_VALID_RANGE;
+
+
+    return GATT_DESCR_UNKNOWN;
+}
+
+/*******************************************************************************
+**
+** Function         gatts_add_char_descr
+**
+** Description      This function add a characteristics descriptor.
+**
+** Parameter        p_db: database pointer.
+**                  perm: characteristic descriptor permission type.
+**                  char_dscp_tpye: the characteristic descriptor masks.
+**                  p_dscp_params: characteristic descriptors values.
+**
+** Returns          Status of the operation.
+**
+*******************************************************************************/
+UINT16 gatts_add_char_descr (tGATT_SVC_DB *p_db, tGATT_PERM perm,
+                             tBT_UUID *     p_descr_uuid)
+{
+    tGATT_ATTR16    *p_char_dscptr;
+
+    GATT_TRACE_DEBUG("gatts_add_char_descr uuid=0x%04x", p_descr_uuid->uu.uuid16);
+
+    /* Add characteristic descriptors */
+    if ((p_char_dscptr = (tGATT_ATTR16 *)allocate_attr_in_db(p_db,
+                                                             p_descr_uuid,
+                                                             perm))
+        == NULL)
+    {
+        GATT_TRACE_DEBUG("gatts_add_char_descr Fail for adding char descriptors.");
+        return 0;
+    }
+    else
+    {
+        return p_char_dscptr->handle;
+    }
+}
+
+/*******************************************************************************/
+/* Service Attribute Database Query Utility Functions */
+/*******************************************************************************/
+/*******************************************************************************
+**
+** Function         gatts_read_attr_value_by_handle
+**
+** Description      Query attribute value by attribute handle.
+**
+** Parameter        p_db: pointer to the attribute database.
+**                  handle: Attribute handle to read.
+**                  offset: Read offset.
+**                  p_value: output parameter to carry out the attribute value.
+**                  p_len: output parameter as attribute length read.
+**                  read_long: this is a read blob request.
+**                  mtu: MTU.
+**                  sec_flag: current link security status.
+**                  key_size: encryption key size
+**
+** Returns          Status of operation.
+**
+*******************************************************************************/
+tGATT_STATUS gatts_read_attr_value_by_handle(tGATT_TCB *p_tcb,
+                                             tGATT_SVC_DB *p_db,
+                                             UINT8 op_code,
+                                             UINT16 handle, UINT16 offset,
+                                             UINT8 *p_value, UINT16 *p_len,
+                                             UINT16 mtu,
+                                             tGATT_SEC_FLAG sec_flag,
+                                             UINT8 key_size,
+                                             UINT32 trans_id)
+{
+    tGATT_STATUS status = GATT_NOT_FOUND;
+    tGATT_ATTR16  *p_attr;
+    UINT8       *pp = p_value;
+
+    if (p_db && p_db->p_attr_list)
+    {
+        p_attr = (tGATT_ATTR16 *)p_db->p_attr_list;
+
+        while (p_attr && handle >= p_attr->handle)
+        {
+            if (p_attr->handle == handle)
+            {
+                status = read_attr_value (p_attr, offset, &pp,
+                                          (BOOLEAN)(op_code == GATT_REQ_READ_BLOB),
+                                          mtu, p_len, sec_flag, key_size);
+
+                if (status == GATT_PENDING)
+                {
+                    status = gatts_send_app_read_request(p_tcb, op_code, p_attr->handle, offset, trans_id);
+                }
+                break;
+            }
+            p_attr = (tGATT_ATTR16 *)p_attr->p_next;
+        }
+    }
+
+    return status;
+}
+
+/*******************************************************************************
+**
+** Function         gatts_read_attr_perm_check
+**
+** Description      Check attribute readability.
+**
+** Parameter        p_db: pointer to the attribute database.
+**                  handle: Attribute handle to read.
+**                  offset: Read offset.
+**                  p_value: output parameter to carry out the attribute value.
+**                  p_len: output parameter as attribute length read.
+**                  read_long: this is a read blob request.
+**                  mtu: MTU.
+**                  sec_flag: current link security status.
+**                  key_size: encryption key size
+**
+** Returns          Status of operation.
+**
+*******************************************************************************/
+tGATT_STATUS gatts_read_attr_perm_check(tGATT_SVC_DB *p_db,
+                                        BOOLEAN is_long,
+                                        UINT16 handle,
+                                        tGATT_SEC_FLAG sec_flag,
+                                        UINT8 key_size)
+{
+    tGATT_STATUS status = GATT_NOT_FOUND;
+    tGATT_ATTR16  *p_attr;
+
+    if (p_db && p_db->p_attr_list)
+    {
+        p_attr = (tGATT_ATTR16 *)p_db->p_attr_list;
+
+        while (p_attr && handle >= p_attr->handle)
+        {
+            if (p_attr->handle == handle)
+            {
+                status = gatts_check_attr_readability (p_attr, 0,
+                                                       is_long,
+                                                       sec_flag, key_size);
+                break;
+            }
+            p_attr = (tGATT_ATTR16 *) p_attr->p_next;
+        }
+    }
+
+    return status;
+}
+/*******************************************************************************
+**
+** Function         gatts_write_attr_perm_check
+**
+** Description      Write attribute value into database.
+**
+** Parameter        p_db: pointer to the attribute database.
+**                  op_code:op code of this write.
+**                  handle: handle of the attribute to write.
+**                  offset: Write offset if write op code is write blob.
+**                  p_data: Attribute value to write.
+**                  len: attribute data length.
+**                  sec_flag: current link security status.
+**                  key_size: encryption key size
+**
+** Returns          Status of the operation.
+**
+*******************************************************************************/
+tGATT_STATUS gatts_write_attr_perm_check (tGATT_SVC_DB *p_db, UINT8 op_code,
+                                          UINT16 handle, UINT16 offset, UINT8 *p_data,
+                                          UINT16 len, tGATT_SEC_FLAG sec_flag, UINT8 key_size)
+{
+    tGATT_STATUS    status = GATT_NOT_FOUND;
+    tGATT_ATTR16    *p_attr;
+    UINT16          max_size = 0;
+    tGATT_PERM      perm;
+    UINT16          min_key_size;
+
+    GATT_TRACE_DEBUG( "gatts_write_attr_perm_check op_code=0x%0x handle=0x%04x offset=%d len=%d sec_flag=0x%0x key_size=%d",
+                       op_code, handle, offset, len, sec_flag, key_size);
+
+    if (p_db != NULL)
+    {
+        p_attr = (tGATT_ATTR16 *) p_db->p_attr_list;
+
+        while (p_attr != NULL)
+        {
+            if (p_attr->handle == handle)
+            {
+                perm = p_attr->permission;
+                min_key_size = (((perm & GATT_ENCRYPT_KEY_SIZE_MASK) >> 12));
+                if (min_key_size != 0 )
+                {
+                    min_key_size +=6;
+                }
+                GATT_TRACE_DEBUG( "gatts_write_attr_perm_check p_attr->permission =0x%04x min_key_size==0x%04x",
+                                   p_attr->permission,
+                                   min_key_size);
+
+                if ((op_code == GATT_CMD_WRITE || op_code == GATT_REQ_WRITE)
+                    && (perm & GATT_WRITE_SIGNED_PERM))
+                {
+                    /* use the rules for the mixed security see section 10.2.3*/
+                    /* use security mode 1 level 2 when the following condition follows */
+                    /* LE security mode 2 level 1 and LE security mode 1 level 2 */
+                    if ((perm & GATT_PERM_WRITE_SIGNED) && (perm & GATT_PERM_WRITE_ENCRYPTED))
+                    {
+                        perm = GATT_PERM_WRITE_ENCRYPTED;
+                    }
+                    /* use security mode 1 level 3 when the following condition follows */
+                    /* LE security mode 2 level 2 and security mode 1 and LE */
+                    else if (((perm & GATT_PERM_WRITE_SIGNED_MITM) && (perm & GATT_PERM_WRITE_ENCRYPTED)) ||
+                              /* LE security mode 2 and security mode 1 level 3 */
+                             ((perm & GATT_WRITE_SIGNED_PERM) && (perm & GATT_PERM_WRITE_ENC_MITM)))
+                    {
+                        perm = GATT_PERM_WRITE_ENC_MITM;
+                    }
+                }
+
+                if ((op_code == GATT_SIGN_CMD_WRITE) && !(perm & GATT_WRITE_SIGNED_PERM))
+                {
+                    status = GATT_WRITE_NOT_PERMIT;
+                    GATT_TRACE_DEBUG( "gatts_write_attr_perm_check - sign cmd write not allowed");
+                }
+                 if ((op_code == GATT_SIGN_CMD_WRITE) && (sec_flag & GATT_SEC_FLAG_ENCRYPTED))
+                {
+                    status = GATT_INVALID_PDU;
+                    GATT_TRACE_ERROR( "gatts_write_attr_perm_check - Error!! sign cmd write sent on a encypted link");
+                }
+                else if (!(perm & GATT_WRITE_ALLOWED))
+                {
+                    status = GATT_WRITE_NOT_PERMIT;
+                    GATT_TRACE_ERROR( "gatts_write_attr_perm_check - GATT_WRITE_NOT_PERMIT");
+                }
+                /* require authentication, but not been authenticated */
+                else if ((perm & GATT_WRITE_AUTH_REQUIRED ) && !(sec_flag & GATT_SEC_FLAG_LKEY_UNAUTHED))
+                {
+                    status = GATT_INSUF_AUTHENTICATION;
+                    GATT_TRACE_ERROR( "gatts_write_attr_perm_check - GATT_INSUF_AUTHENTICATION");
+                }
+                else if ((perm & GATT_WRITE_MITM_REQUIRED ) && !(sec_flag & GATT_SEC_FLAG_LKEY_AUTHED))
+                {
+                    status = GATT_INSUF_AUTHENTICATION;
+                    GATT_TRACE_ERROR( "gatts_write_attr_perm_check - GATT_INSUF_AUTHENTICATION: MITM required");
+                }
+                else if ((perm & GATT_WRITE_ENCRYPTED_PERM ) && !(sec_flag & GATT_SEC_FLAG_ENCRYPTED))
+                {
+                    status = GATT_INSUF_ENCRYPTION;
+                    GATT_TRACE_ERROR( "gatts_write_attr_perm_check - GATT_INSUF_ENCRYPTION");
+                }
+                else if ((perm & GATT_WRITE_ENCRYPTED_PERM ) && (sec_flag & GATT_SEC_FLAG_ENCRYPTED) && (key_size < min_key_size))
+                {
+                    status = GATT_INSUF_KEY_SIZE;
+                    GATT_TRACE_ERROR( "gatts_write_attr_perm_check - GATT_INSUF_KEY_SIZE");
+                }
+                /* LE security mode 2 attribute  */
+                else if (perm & GATT_WRITE_SIGNED_PERM && op_code != GATT_SIGN_CMD_WRITE && !(sec_flag & GATT_SEC_FLAG_ENCRYPTED)
+                    &&  (perm & GATT_WRITE_ALLOWED) == 0)
+                {
+                    status = GATT_INSUF_AUTHENTICATION;
+                    GATT_TRACE_ERROR( "gatts_write_attr_perm_check - GATT_INSUF_AUTHENTICATION: LE security mode 2 required");
+                }
+                else /* writable: must be char value declaration or char descritpors */
+                {
+                    if(p_attr->uuid_type == GATT_ATTR_UUID_TYPE_16)
+                    {
+                    switch (p_attr->uuid)
+                    {
+                        case GATT_UUID_CHAR_PRESENT_FORMAT:/* should be readable only */
+                        case GATT_UUID_CHAR_EXT_PROP:/* should be readable only */
+                        case GATT_UUID_CHAR_AGG_FORMAT: /* should be readable only */
+                            case GATT_UUID_CHAR_VALID_RANGE:
+                            status = GATT_WRITE_NOT_PERMIT;
+                            break;
+
+                        case GATT_UUID_CHAR_CLIENT_CONFIG:
+/* coverity[MISSING_BREAK] */
+/* intnended fall through, ignored */
+                            /* fall through */
+                        case GATT_UUID_CHAR_SRVR_CONFIG:
+                            max_size = 2;
+                        case GATT_UUID_CHAR_DESCRIPTION:
+                        default: /* any other must be character value declaration */
+                            status = GATT_SUCCESS;
+                            break;
+                        }
+                    }
+                    else if (p_attr->uuid_type == GATT_ATTR_UUID_TYPE_128 ||
+				              p_attr->uuid_type == GATT_ATTR_UUID_TYPE_32)
+                    {
+                         status = GATT_SUCCESS;
+                    }
+                    else
+                    {
+                        status = GATT_INVALID_PDU;
+                    }
+
+                    if (p_data == NULL && len  > 0)
+                    {
+                        status = GATT_INVALID_PDU;
+                    }
+                    /* these attribute does not allow write blob */
+                    else if ( (p_attr->uuid_type == GATT_ATTR_UUID_TYPE_16) &&
+                              (p_attr->uuid == GATT_UUID_CHAR_CLIENT_CONFIG ||
+                               p_attr->uuid == GATT_UUID_CHAR_SRVR_CONFIG) )
+                    {
+                        if (op_code == GATT_REQ_PREPARE_WRITE && offset != 0) /* does not allow write blob */
+                        {
+                            status = GATT_NOT_LONG;
+                            GATT_TRACE_ERROR( "gatts_write_attr_perm_check - GATT_NOT_LONG");
+                        }
+                        else if (len != max_size)    /* data does not match the required format */
+                        {
+                            status = GATT_INVALID_ATTR_LEN;
+                            GATT_TRACE_ERROR( "gatts_write_attr_perm_check - GATT_INVALID_PDU");
+                        }
+                        else
+                        {
+                            status = GATT_SUCCESS;
+                        }
+                    }
+                }
+                break;
+            }
+            else
+                p_attr = (tGATT_ATTR16 *)p_attr->p_next;
+        }
+    }
+
+    return status;
+}
+
+/*******************************************************************************
+**
+** Function         allocate_attr_in_db
+**
+** Description      Allocate a memory space for a new attribute, and link this
+**                  attribute into the database attribute list.
+**
+**
+** Parameter        p_db    : database pointer.
+**                  p_uuid:     pointer to attribute UUID
+**                  service : type of attribute to be added.
+**
+** Returns          pointer to the newly allocated attribute.
+**
+*******************************************************************************/
+static void *allocate_attr_in_db(tGATT_SVC_DB *p_db, tBT_UUID *p_uuid, tGATT_PERM perm)
+{
+    tGATT_ATTR16    *p_attr16 = NULL, *p_last;
+    tGATT_ATTR32    *p_attr32 = NULL;
+    tGATT_ATTR128   *p_attr128 = NULL;
+    UINT16      len = sizeof(tGATT_ATTR128);
+
+    if (p_uuid == NULL)
+    {
+        GATT_TRACE_ERROR("illegal UUID");
+        return NULL;
+    }
+
+    if (p_uuid->len == LEN_UUID_16)
+        len = sizeof(tGATT_ATTR16);
+    else if (p_uuid->len == LEN_UUID_32)
+        len = sizeof(tGATT_ATTR32);
+
+    GATT_TRACE_DEBUG("allocate attr %d bytes ",len);
+
+    if (p_db->end_handle <= p_db->next_handle)
+    {
+        GATT_TRACE_DEBUG("handle space full. handle_max = %d next_handle = %d",
+                          p_db->end_handle, p_db->next_handle);
+        return NULL;
+    }
+
+    if (p_db->mem_free < len)
+    {
+        if (!allocate_svc_db_buf(p_db))
+        {
+            GATT_TRACE_ERROR("allocate_attr_in_db failed, no resources");
+            return NULL;
+        }
+    }
+    memset(p_db->p_free_mem, 0, len);
+    p_attr16 = (tGATT_ATTR16 *) p_db->p_free_mem;
+
+    if (p_uuid->len == LEN_UUID_16 && p_uuid->uu.uuid16 != GATT_ILLEGAL_UUID)
+    {
+        p_attr16->uuid_type = GATT_ATTR_UUID_TYPE_16;
+        p_attr16->uuid = p_uuid->uu.uuid16;
+    }
+    else if (p_uuid->len == LEN_UUID_32)
+    {
+        p_attr32 = (tGATT_ATTR32 *) p_db->p_free_mem;
+        p_attr32->uuid_type = GATT_ATTR_UUID_TYPE_32;
+        p_attr32->uuid = p_uuid->uu.uuid32;
+    }
+    else if (p_uuid->len == LEN_UUID_128)
+    {
+        p_attr128 = (tGATT_ATTR128 *) p_db->p_free_mem;
+        p_attr128->uuid_type = GATT_ATTR_UUID_TYPE_128;
+        memcpy(p_attr128->uuid, p_uuid->uu.uuid128, LEN_UUID_128);
+    }
+
+    p_db->p_free_mem += len;
+    p_db->mem_free -= len;
+
+    p_attr16->handle = p_db->next_handle++;
+    p_attr16->permission = perm;
+    p_attr16->p_next = NULL;
+
+    /* link the attribute record into the end of DB */
+    if (p_db->p_attr_list == NULL)
+        p_db->p_attr_list = p_attr16;
+    else
+    {
+        p_last = (tGATT_ATTR16 *)p_db->p_attr_list;
+
+        while (p_last != NULL && p_last->p_next != NULL)
+            p_last = (tGATT_ATTR16 *)p_last->p_next;
+
+        p_last->p_next = p_attr16;
+    }
+
+    if (p_attr16->uuid_type == GATT_ATTR_UUID_TYPE_16)
+    {
+        GATT_TRACE_DEBUG("=====> handle = [0x%04x] uuid16 = [0x%04x] perm=0x%02x ",
+                          p_attr16->handle, p_attr16->uuid, p_attr16->permission);
+    }
+    else if (p_attr16->uuid_type == GATT_ATTR_UUID_TYPE_32)
+    {
+        GATT_TRACE_DEBUG("=====> handle = [0x%04x] uuid32 = [0x%08x] perm=0x%02x ",
+                          p_attr32->handle, p_attr32->uuid, p_attr32->permission);
+    }
+    else
+    {
+        GATT_TRACE_DEBUG("=====> handle = [0x%04x] uuid128 = [0x%02x:0x%02x] perm=0x%02x ",
+                          p_attr128->handle, p_attr128->uuid[0],p_attr128->uuid[1],
+                          p_attr128->permission);
+    }
+    return(void *)p_attr16;
+}
+
+/*******************************************************************************
+**
+** Function         deallocate_attr_in_db
+**
+** Description      Free an attribute within the database.
+**
+** Parameter        p_db: database pointer.
+**                  p_attr: pointer to the attribute record to be freed.
+**
+** Returns          BOOLEAN: success
+**
+*******************************************************************************/
+static BOOLEAN deallocate_attr_in_db(tGATT_SVC_DB *p_db, void *p_attr)
+{
+    tGATT_ATTR16  *p_cur, *p_next;
+    BOOLEAN     found = FALSE;
+
+    if (p_db->p_attr_list == NULL)
+        return found;
+
+    p_cur   = (tGATT_ATTR16 *) p_db->p_attr_list;
+    p_next  = (tGATT_ATTR16 *) p_cur->p_next;
+
+    for (; p_cur != NULL && p_next != NULL;
+        p_cur = p_next, p_next = (tGATT_ATTR16 *)p_next->p_next)
+    {
+        if (p_next == p_attr)
+        {
+            p_cur->p_next = p_next->p_next;
+            found = TRUE;
+        }
+    }
+    if (p_cur == p_attr && p_cur == p_db->p_attr_list)
+    {
+        p_db->p_attr_list = p_cur->p_next;
+        found = TRUE;
+    }
+    /* else attr not found */
+    if ( found)
+        p_db->next_handle --;
+
+    return found;
+}
+
+/*******************************************************************************
+**
+** Function         copy_extra_byte_in_db
+**
+** Description      Utility function to allocate extra bytes memory in DB and copy
+**                  the value from a source place.
+**
+**
+** Parameter        p_db: database pointer.
+**                  p_dst: destination data pointer.
+**                  p_src: source data pointer.
+**                  len: data length to be copied.
+**
+** Returns          None.
+**
+*******************************************************************************/
+static BOOLEAN copy_extra_byte_in_db(tGATT_SVC_DB *p_db, void **p_dst, UINT16 len)
+{
+    UINT8 *p = (UINT8 *)*p_dst;
+
+    if (p_db->mem_free < len)
+    {
+        if (!allocate_svc_db_buf(p_db))
+        {
+            GATT_TRACE_ERROR("copy_extra_byte_in_db failed, no resources");
+            return FALSE;
+        }
+    }
+
+    p = p_db->p_free_mem;
+    p_db->p_free_mem += len;
+    p_db->mem_free -= len;
+    memset((void *)p, 0, len);
+    *p_dst = (void *)p;
+
+    return TRUE;
+}
+
+/*******************************************************************************
+**
+** Function         allocate_svc_db_buf
+**
+** Description      Utility function to allocate extra buffer for service database.
+**
+** Returns          TRUE if allocation succeed, otherwise FALSE.
+**
+*******************************************************************************/
+static BOOLEAN allocate_svc_db_buf(tGATT_SVC_DB *p_db)
+{
+    BT_HDR *p_buf = (BT_HDR *)osi_calloc(GATT_DB_BUF_SIZE);
+
+    GATT_TRACE_DEBUG("%s allocating extra buffer", __func__);
+
+    p_db->p_free_mem = (UINT8 *) p_buf;
+    p_db->mem_free = GATT_DB_BUF_SIZE;
+
+    fixed_queue_enqueue(p_db->svc_buffer, p_buf);
+
+    return TRUE;
+
+}
+
+/*******************************************************************************
+**
+** Function         gatts_send_app_read_request
+**
+** Description      Send application read request callback
+**
+** Returns          status of operation.
+**
+*******************************************************************************/
+static tGATT_STATUS gatts_send_app_read_request(tGATT_TCB *p_tcb, UINT8 op_code,
+                                                UINT16 handle, UINT16 offset, UINT32 trans_id)
+{
+    tGATTS_DATA   sr_data;
+    UINT8       i_rcb;
+    tGATT_SR_REG *p_sreg;
+    UINT16   conn_id;
+
+    i_rcb = gatt_sr_find_i_rcb_by_handle(handle);
+    p_sreg = &gatt_cb.sr_reg[i_rcb];
+    conn_id = GATT_CREATE_CONN_ID(p_tcb->tcb_idx, p_sreg->gatt_if);
+
+    if (trans_id == 0)
+    {
+        trans_id = gatt_sr_enqueue_cmd(p_tcb, op_code, handle);
+        gatt_sr_update_cback_cnt(p_tcb, p_sreg->gatt_if, TRUE, TRUE);
+    }
+
+    if (trans_id != 0 )
+    {
+        memset(&sr_data, 0, sizeof(tGATTS_DATA));
+
+        sr_data.read_req.handle = handle;
+        sr_data.read_req.is_long = (BOOLEAN)(op_code == GATT_REQ_READ_BLOB);
+        sr_data.read_req.offset = offset;
+
+        gatt_sr_send_req_callback(conn_id,
+                                  trans_id, GATTS_REQ_TYPE_READ, &sr_data);
+        return(tGATT_STATUS) GATT_PENDING;
+    }
+    else
+        return(tGATT_STATUS) GATT_BUSY; /* max pending command, application error */
+
+}
+
+/*******************************************************************************
+**
+** Function         gatts_db_add_service_declaration
+**
+** Description      Update a service database service declaration record.
+**
+** Parameter        p_db: database pointer.
+**                  service: UUID of the service.
+**
+** Returns          void
+**
+*******************************************************************************/
+static BOOLEAN gatts_db_add_service_declaration(tGATT_SVC_DB *p_db, tBT_UUID *p_service, BOOLEAN is_pri)
+{
+    tGATT_ATTR16  *p_attr;
+    tBT_UUID    uuid = {LEN_UUID_16, {0}};
+    BOOLEAN     rt = FALSE;
+
+    GATT_TRACE_DEBUG( "add_service_declaration");
+
+    if (is_pri)
+        uuid.uu.uuid16 = GATT_UUID_PRI_SERVICE;
+    else
+        uuid.uu.uuid16 = GATT_UUID_SEC_SERVICE;
+
+    /* add service declration record */
+    if ((p_attr = (tGATT_ATTR16 *)(allocate_attr_in_db(p_db, &uuid, GATT_PERM_READ))) != NULL)
+    {
+        if (copy_extra_byte_in_db (p_db, (void **)&p_attr->p_value, sizeof(tBT_UUID)))
+        {
+            if (p_service->len == LEN_UUID_16)
+            {
+                p_attr->p_value->uuid.len = LEN_UUID_16;
+                p_attr->p_value->uuid.uu.uuid16 = p_service->uu.uuid16;
+            }
+            else if (p_service->len == LEN_UUID_32)
+            {
+                p_attr->p_value->uuid.len = LEN_UUID_128;
+                gatt_convert_uuid32_to_uuid128(p_attr->p_value->uuid.uu.uuid128, p_service->uu.uuid32);
+            }
+            else
+            {
+                p_attr->p_value->uuid.len = LEN_UUID_128;
+                memcpy(p_attr->p_value->uuid.uu.uuid128, p_service->uu.uuid128, LEN_UUID_128);
+            }
+            rt = TRUE;
+        }
+
+    }
+    return rt;
+}
+
+#endif /* BLE_INCLUDED */
diff --git a/rtkbt/code/bt/stack/gatt/gatt_int.h b/rtkbt/code/bt/stack/gatt/gatt_int.h
new file mode 100755
index 0000000..56760e9
--- /dev/null
+++ b/rtkbt/code/bt/stack/gatt/gatt_int.h
@@ -0,0 +1,692 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#ifndef  GATT_INT_H
+#define  GATT_INT_H
+
+#include "bt_target.h"
+
+#include "osi/include/fixed_queue.h"
+#include "bt_trace.h"
+#include "gatt_api.h"
+#include "btm_ble_api.h"
+#include "btu.h"
+
+#include <string.h>
+
+
+#define GATT_CREATE_CONN_ID(tcb_idx, gatt_if)  ((UINT16) ((((UINT8)(tcb_idx) ) << 8) | ((UINT8) (gatt_if))))
+#define GATT_GET_TCB_IDX(conn_id)  ((UINT8) (((UINT16) (conn_id)) >> 8))
+#define GATT_GET_GATT_IF(conn_id)  ((tGATT_IF)((UINT8) (conn_id)))
+
+#define GATT_GET_SR_REG_PTR(index) (&gatt_cb.sr_reg[(UINT8) (index)]);
+#define GATT_TRANS_ID_MAX                   0x0fffffff      /* 4 MSB is reserved */
+
+/* security action for GATT write and read request */
+#define GATT_SEC_NONE              0
+#define GATT_SEC_OK                1
+#define GATT_SEC_SIGN_DATA         2   /* compute the signature for the write cmd */
+#define GATT_SEC_ENCRYPT           3    /* encrypt the link with current key */
+#define GATT_SEC_ENCRYPT_NO_MITM   4    /* unauthenticated encryption or better */
+#define GATT_SEC_ENCRYPT_MITM      5    /* authenticated encryption */
+#define GATT_SEC_ENC_PENDING       6   /* wait for link encryption pending */
+typedef UINT8 tGATT_SEC_ACTION;
+
+
+#define GATT_ATTR_OP_SPT_MTU               (0x00000001 << 0)
+#define GATT_ATTR_OP_SPT_FIND_INFO         (0x00000001 << 1)
+#define GATT_ATTR_OP_SPT_FIND_BY_TYPE      (0x00000001 << 2)
+#define GATT_ATTR_OP_SPT_READ_BY_TYPE      (0x00000001 << 3)
+#define GATT_ATTR_OP_SPT_READ              (0x00000001 << 4)
+#define GATT_ATTR_OP_SPT_MULT_READ         (0x00000001 << 5)
+#define GATT_ATTR_OP_SPT_READ_BLOB         (0x00000001 << 6)
+#define GATT_ATTR_OP_SPT_READ_BY_GRP_TYPE  (0x00000001 << 7)
+#define GATT_ATTR_OP_SPT_WRITE             (0x00000001 << 8)
+#define GATT_ATTR_OP_SPT_WRITE_CMD         (0x00000001 << 9)
+#define GATT_ATTR_OP_SPT_PREP_WRITE        (0x00000001 << 10)
+#define GATT_ATTR_OP_SPT_EXE_WRITE         (0x00000001 << 11)
+#define GATT_ATTR_OP_SPT_HDL_VALUE_CONF    (0x00000001 << 12)
+#define GATT_ATTR_OP_SP_SIGN_WRITE        (0x00000001 << 13)
+
+#define GATT_INDEX_INVALID  0xff
+
+#define GATT_PENDING_REQ_NONE    0
+
+
+#define GATT_WRITE_CMD_MASK  0xc0  /*0x1100-0000*/
+#define GATT_AUTH_SIGN_MASK  0x80  /*0x1000-0000*/
+#define GATT_AUTH_SIGN_LEN   12
+
+#define GATT_HDR_SIZE           3 /* 1B opcode + 2B handle */
+
+/* wait for ATT cmd response timeout value */
+#define GATT_WAIT_FOR_RSP_TIMEOUT_MS      (30 * 1000)
+#define GATT_WAIT_FOR_DISC_RSP_TIMEOUT_MS (5 * 1000)
+#define GATT_REQ_RETRY_LIMIT         2
+
+/* characteristic descriptor type */
+#define GATT_DESCR_EXT_DSCPTOR   1    /* Characteristic Extended Properties */
+#define GATT_DESCR_USER_DSCPTOR  2    /* Characteristic User Description    */
+#define GATT_DESCR_CLT_CONFIG    3    /* Client Characteristic Configuration */
+#define GATT_DESCR_SVR_CONFIG    4    /* Server Characteristic Configuration */
+#define GATT_DESCR_PRES_FORMAT   5    /* Characteristic Presentation Format */
+#define GATT_DESCR_AGGR_FORMAT   6    /* Characteristic Aggregate Format */
+#define GATT_DESCR_VALID_RANGE   7    /* Characteristic Valid Range */
+#define GATT_DESCR_UNKNOWN       0xff
+
+#define GATT_SEC_FLAG_LKEY_UNAUTHED     BTM_SEC_FLAG_LKEY_KNOWN
+#define GATT_SEC_FLAG_LKEY_AUTHED       BTM_SEC_FLAG_LKEY_AUTHED
+#define GATT_SEC_FLAG_ENCRYPTED         BTM_SEC_FLAG_ENCRYPTED
+typedef UINT8 tGATT_SEC_FLAG;
+
+/* Find Information Response Type
+*/
+#define GATT_INFO_TYPE_PAIR_16      0x01
+#define GATT_INFO_TYPE_PAIR_128     0x02
+
+/*  GATT client FIND_TYPE_VALUE_Request data */
+typedef struct
+{
+    tBT_UUID        uuid;           /* type of attribute to be found */
+    UINT16          s_handle;       /* starting handle */
+    UINT16          e_handle;       /* ending handle */
+    UINT16          value_len;      /* length of the attribute value */
+    UINT8           value[GATT_MAX_MTU_SIZE];       /* pointer to the attribute value to be found */
+} tGATT_FIND_TYPE_VALUE;
+
+/* client request message to ATT protocol
+*/
+typedef union
+{
+    tGATT_READ_BY_TYPE      browse;     /* read by type request */
+    tGATT_FIND_TYPE_VALUE   find_type_value;/* find by type value */
+    tGATT_READ_MULTI        read_multi;   /* read multiple request */
+    tGATT_READ_PARTIAL      read_blob;    /* read blob */
+    tGATT_VALUE             attr_value;   /* write request */
+                                          /* prepare write */
+    /* write blob */
+    UINT16                  handle;        /* read,  handle value confirmation */
+    UINT16                  mtu;
+    tGATT_EXEC_FLAG         exec_write;    /* execute write */
+}tGATT_CL_MSG;
+
+/* error response strucutre */
+typedef struct
+{
+    UINT16  handle;
+    UINT8   cmd_code;
+    UINT8   reason;
+}tGATT_ERROR;
+
+/* server response message to ATT protocol
+*/
+typedef union
+{
+    /* data type            member          event   */
+    tGATT_VALUE             attr_value;     /* READ, HANDLE_VALUE_IND, PREPARE_WRITE */
+                                            /* READ_BLOB, READ_BY_TYPE */
+    tGATT_ERROR             error;          /* ERROR_RSP */
+    UINT16                  handle;         /* WRITE, WRITE_BLOB */
+    UINT16                  mtu;            /* exchange MTU request */
+} tGATT_SR_MSG;
+
+/* Characteristic declaration attribute value
+*/
+typedef struct
+{
+    tGATT_CHAR_PROP             property;
+    UINT16                      char_val_handle;
+} tGATT_CHAR_DECL;
+
+/* attribute value maintained in the server database
+*/
+typedef union
+{
+    tBT_UUID                uuid;               /* service declaration */
+    tGATT_CHAR_DECL         char_decl;          /* characteristic declaration */
+    tGATT_INCL_SRVC         incl_handle;        /* included service */
+
+} tGATT_ATTR_VALUE;
+
+/* Attribute UUID type
+*/
+#define GATT_ATTR_UUID_TYPE_16      0
+#define GATT_ATTR_UUID_TYPE_128     1
+#define GATT_ATTR_UUID_TYPE_32      2
+typedef UINT8   tGATT_ATTR_UUID_TYPE;
+
+/* 16 bits UUID Attribute in server database
+*/
+typedef struct
+{
+    void                                *p_next;  /* pointer to the next attribute,
+                                                    either tGATT_ATTR16 or tGATT_ATTR128 */
+    tGATT_ATTR_VALUE                    *p_value;
+    tGATT_ATTR_UUID_TYPE                uuid_type;
+    tGATT_PERM                          permission;
+    UINT16                              handle;
+    UINT16                              uuid;
+} tGATT_ATTR16;
+
+/* 32 bits UUID Attribute in server database
+*/
+typedef struct
+{
+    void                                *p_next;  /* pointer to the next attribute,
+                                                    either tGATT_ATTR16, tGATT_ATTR32 or tGATT_ATTR128 */
+    tGATT_ATTR_VALUE                    *p_value;
+    tGATT_ATTR_UUID_TYPE                uuid_type;
+    tGATT_PERM                          permission;
+    UINT16                              handle;
+    UINT32                              uuid;
+} tGATT_ATTR32;
+
+
+/* 128 bits UUID Attribute in server database
+*/
+typedef struct
+{
+    void                                *p_next;  /* pointer to the next attribute,
+                                                    either tGATT_ATTR16 or tGATT_ATTR128 */
+    tGATT_ATTR_VALUE                    *p_value;
+    tGATT_ATTR_UUID_TYPE                uuid_type;
+    tGATT_PERM                          permission;
+    UINT16                              handle;
+    UINT8                               uuid[LEN_UUID_128];
+} tGATT_ATTR128;
+
+/* Service Database definition
+*/
+typedef struct
+{
+    void            *p_attr_list;               /* pointer to the first attribute,
+                                                  either tGATT_ATTR16 or tGATT_ATTR128 */
+    UINT8           *p_free_mem;                /* Pointer to free memory       */
+    fixed_queue_t   *svc_buffer;                /* buffer queue used for service database */
+    UINT32          mem_free;                   /* Memory still available       */
+    UINT16          end_handle;                 /* Last handle number           */
+    UINT16          next_handle;                /* Next usable handle value     */
+} tGATT_SVC_DB;
+
+/* Data Structure used for GATT server                                        */
+/* A GATT registration record consists of a handle, and 1 or more attributes  */
+/* A service registration information record consists of beginning and ending */
+/* attribute handle, service UUID and a set of GATT server callback.          */
+typedef struct
+{
+    tGATT_SVC_DB    *p_db;      /* pointer to the service database */
+    tBT_UUID        app_uuid;           /* applicatino UUID */
+    UINT32          sdp_handle; /* primamry service SDP handle */
+    UINT16          service_instance;   /* service instance number */
+    UINT16          type;       /* service type UUID, primary or secondary */
+    UINT16          s_hdl;      /* service starting handle */
+    UINT16          e_hdl;      /* service ending handle */
+    tGATT_IF        gatt_if;    /* this service is belong to which application */
+    BOOLEAN         in_use;
+} tGATT_SR_REG;
+
+#define GATT_LISTEN_TO_ALL  0xff
+#define GATT_LISTEN_TO_NONE 0
+
+/* Data Structure used for GATT server */
+/* An GATT registration record consists of a handle, and 1 or more attributes */
+/* A service registration information record consists of beginning and ending */
+/* attribute handle, service UUID and a set of GATT server callback.          */
+
+typedef struct
+{
+    tBT_UUID     app_uuid128;
+    tGATT_CBACK  app_cb;
+    tGATT_IF     gatt_if; /* one based */
+    BOOLEAN      in_use;
+    UINT8        listening; /* if adv for all has been enabled */
+} tGATT_REG;
+
+
+
+
+/* command queue for each connection */
+typedef struct
+{
+    BT_HDR      *p_cmd;
+    UINT16      clcb_idx;
+    UINT8       op_code;
+    BOOLEAN     to_send;
+}tGATT_CMD_Q;
+
+
+#if GATT_MAX_SR_PROFILES <= 8
+typedef UINT8 tGATT_APP_MASK;
+#elif GATT_MAX_SR_PROFILES <= 16
+typedef UINT16 tGATT_APP_MASK;
+#elif GATT_MAX_SR_PROFILES <= 32
+typedef UINT32 tGATT_APP_MASK;
+#endif
+
+/* command details for each connection */
+typedef struct
+{
+    BT_HDR          *p_rsp_msg;
+    UINT32           trans_id;
+    tGATT_READ_MULTI multi_req;
+    fixed_queue_t   *multi_rsp_q;
+    UINT16           handle;
+    UINT8            op_code;
+    UINT8            status;
+    UINT8            cback_cnt[GATT_MAX_APPS];
+} tGATT_SR_CMD;
+
+#define     GATT_CH_CLOSE               0
+#define     GATT_CH_CLOSING             1
+#define     GATT_CH_CONN                2
+#define     GATT_CH_CFG                 3
+#define     GATT_CH_OPEN                4
+
+typedef UINT8 tGATT_CH_STATE;
+
+#define GATT_GATT_START_HANDLE  1
+#define GATT_GAP_START_HANDLE   20
+#define GATT_APP_START_HANDLE   40
+
+typedef struct hdl_cfg
+{
+    UINT16               gatt_start_hdl;
+    UINT16               gap_start_hdl;
+    UINT16               app_start_hdl;
+}tGATT_HDL_CFG;
+
+typedef struct hdl_list_elem
+{
+    struct              hdl_list_elem *p_next;
+    struct              hdl_list_elem *p_prev;
+    tGATTS_HNDL_RANGE   asgn_range; /* assigned handle range */
+    tGATT_SVC_DB        svc_db;
+    BOOLEAN             in_use;
+}tGATT_HDL_LIST_ELEM;
+
+typedef struct
+{
+    tGATT_HDL_LIST_ELEM  *p_first;
+    tGATT_HDL_LIST_ELEM  *p_last;
+    UINT16               count;
+}tGATT_HDL_LIST_INFO;
+
+
+typedef struct srv_list_elem
+{
+    struct              srv_list_elem *p_next;
+    struct              srv_list_elem *p_prev;
+    UINT16              s_hdl;
+    UINT8               i_sreg;
+    BOOLEAN             in_use;
+    BOOLEAN             is_primary;
+}tGATT_SRV_LIST_ELEM;
+
+
+typedef struct
+{
+    tGATT_SRV_LIST_ELEM  *p_last_primary;
+    tGATT_SRV_LIST_ELEM  *p_first;
+    tGATT_SRV_LIST_ELEM  *p_last;
+    UINT16               count;
+}tGATT_SRV_LIST_INFO;
+
+typedef struct
+{
+    fixed_queue_t   *pending_enc_clcb;   /* pending encryption channel q */
+    tGATT_SEC_ACTION sec_act;
+    BD_ADDR         peer_bda;
+    tBT_TRANSPORT   transport;
+    UINT32          trans_id;
+
+    UINT16          att_lcid;           /* L2CAP channel ID for ATT */
+    UINT16          payload_size;
+
+    tGATT_CH_STATE  ch_state;
+    UINT8           ch_flags;
+
+    tGATT_IF        app_hold_link[GATT_MAX_APPS];
+
+    /* server needs */
+    /* server response data */
+    tGATT_SR_CMD    sr_cmd;
+    UINT16          indicate_handle;
+    fixed_queue_t   *pending_ind_q;
+
+    alarm_t         *conf_timer;         /* peer confirm to indication timer */
+
+    UINT8           prep_cnt[GATT_MAX_APPS];
+    UINT8           ind_count;
+
+    tGATT_CMD_Q     cl_cmd_q[GATT_CL_MAX_LCB];
+    alarm_t         *ind_ack_timer;   /* local app confirm to indication timer */
+    UINT8           pending_cl_req;
+    UINT8           next_slot_inq;    /* index of next available slot in queue */
+
+    BOOLEAN         in_use;
+    UINT8           tcb_idx;
+} tGATT_TCB;
+
+
+/* logic channel */
+typedef struct
+{
+    UINT16                  next_disc_start_hdl;   /* starting handle for the next inc srvv discovery */
+    tGATT_DISC_RES          result;
+    BOOLEAN                 wait_for_read_rsp;
+} tGATT_READ_INC_UUID128;
+typedef struct
+{
+    tGATT_TCB               *p_tcb;         /* associated TCB of this CLCB */
+    tGATT_REG               *p_reg;        /* owner of this CLCB */
+    UINT8                   sccb_idx;
+    UINT8                   *p_attr_buf;    /* attribute buffer for read multiple, prepare write */
+    tBT_UUID                uuid;
+    UINT16                  conn_id;        /* connection handle */
+    UINT16                  clcb_idx;
+    UINT16                  s_handle;       /* starting handle of the active request */
+    UINT16                  e_handle;       /* ending handle of the active request */
+    UINT16                  counter;        /* used as offset, attribute length, num of prepare write */
+    UINT16                  start_offset;
+    tGATT_AUTH_REQ          auth_req;       /* authentication requirement */
+    UINT8                   operation;      /* one logic channel can have one operation active */
+    UINT8                   op_subtype;     /* operation subtype */
+    UINT8                   status;         /* operation status */
+    BOOLEAN                 first_read_blob_after_read;
+    tGATT_READ_INC_UUID128  read_uuid128;
+    BOOLEAN                 in_use;
+    alarm_t                 *gatt_rsp_timer_ent;  /* peer response timer */
+    UINT8                   retry_count;
+
+} tGATT_CLCB;
+
+typedef struct
+{
+    tGATT_CLCB  *p_clcb;
+}tGATT_PENDING_ENC_CLCB;
+
+typedef struct
+{
+    UINT16                  clcb_idx;
+    BOOLEAN                 in_use;
+} tGATT_SCCB;
+
+typedef struct
+{
+    UINT16      handle;
+    UINT16      uuid;
+    UINT32      service_change;
+}tGATT_SVC_CHG;
+
+typedef struct
+{
+    tGATT_IF        gatt_if[GATT_MAX_APPS];
+    tGATT_IF        listen_gif[GATT_MAX_APPS];
+    BD_ADDR         remote_bda;
+    BOOLEAN         in_use;
+}tGATT_BG_CONN_DEV;
+
+#define GATT_SVC_CHANGED_CONNECTING        1   /* wait for connection */
+#define GATT_SVC_CHANGED_SERVICE           2   /* GATT service discovery */
+#define GATT_SVC_CHANGED_CHARACTERISTIC    3   /* service change char discovery */
+#define GATT_SVC_CHANGED_DESCRIPTOR        4   /* service change CCC discoery */
+#define GATT_SVC_CHANGED_CONFIGURE_CCCD    5   /* config CCC */
+
+typedef struct
+{
+    UINT16  conn_id;
+    BOOLEAN in_use;
+    BOOLEAN connected;
+    BD_ADDR bda;
+    tBT_TRANSPORT   transport;
+
+    /* GATT service change CCC related variables */
+    UINT8       ccc_stage;
+    UINT8       ccc_result;
+    UINT16      s_handle;
+    UINT16      e_handle;
+}tGATT_PROFILE_CLCB;
+
+typedef struct
+{
+    tGATT_TCB           tcb[GATT_MAX_PHY_CHANNEL];
+    fixed_queue_t       *sign_op_queue;
+
+    tGATT_SR_REG        sr_reg[GATT_MAX_SR_PROFILES];
+    UINT16              next_handle;    /* next available handle */
+    tGATT_SVC_CHG       gattp_attr;     /* GATT profile attribute service change */
+    tGATT_IF            gatt_if;
+    tGATT_HDL_LIST_INFO hdl_list_info;
+    tGATT_HDL_LIST_ELEM hdl_list[GATT_MAX_SR_PROFILES];
+    tGATT_SRV_LIST_INFO srv_list_info;
+    tGATT_SRV_LIST_ELEM srv_list[GATT_MAX_SR_PROFILES];
+
+    fixed_queue_t       *srv_chg_clt_q; /* service change clients queue */
+    fixed_queue_t       *pending_new_srv_start_q; /* pending new service start queue */
+    tGATT_REG           cl_rcb[GATT_MAX_APPS];
+    tGATT_CLCB          clcb[GATT_CL_MAX_LCB];  /* connection link control block*/
+    tGATT_SCCB          sccb[GATT_MAX_SCCB];    /* sign complete callback function GATT_MAX_SCCB <= GATT_CL_MAX_LCB */
+    UINT8               trace_level;
+    UINT16              def_mtu_size;
+
+#if GATT_CONFORMANCE_TESTING == TRUE
+    BOOLEAN             enable_err_rsp;
+    UINT8               req_op_code;
+    UINT8               err_status;
+    UINT16              handle;
+#endif
+
+    tGATT_PROFILE_CLCB  profile_clcb[GATT_MAX_APPS];
+    UINT16              handle_of_h_r;          /* Handle of the handles reused characteristic value */
+
+    tGATT_APPL_INFO       cb_info;
+
+
+
+    tGATT_HDL_CFG           hdl_cfg;
+    tGATT_BG_CONN_DEV       bgconn_dev[GATT_MAX_BG_CONN_DEV];
+
+} tGATT_CB;
+
+
+#define GATT_SIZE_OF_SRV_CHG_HNDL_RANGE 4
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Global GATT data */
+#if GATT_DYNAMIC_MEMORY == FALSE
+extern tGATT_CB  gatt_cb;
+#else
+extern tGATT_CB *gatt_cb_ptr;
+#define gatt_cb (*gatt_cb_ptr)
+#endif
+
+#if GATT_CONFORMANCE_TESTING == TRUE
+extern void gatt_set_err_rsp(BOOLEAN enable, UINT8 req_op_code, UINT8 err_status);
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+/* internal functions */
+extern void gatt_init (void);
+extern void gatt_free(void);
+
+/* from gatt_main.c */
+extern BOOLEAN gatt_disconnect (tGATT_TCB *p_tcb);
+extern BOOLEAN gatt_act_connect (tGATT_REG *p_reg, BD_ADDR bd_addr, tBT_TRANSPORT transport);
+extern BOOLEAN gatt_connect (BD_ADDR rem_bda,  tGATT_TCB *p_tcb, tBT_TRANSPORT transport);
+extern void gatt_data_process (tGATT_TCB *p_tcb, BT_HDR *p_buf);
+extern void gatt_update_app_use_link_flag ( tGATT_IF gatt_if, tGATT_TCB *p_tcb, BOOLEAN is_add, BOOLEAN check_acl_link);
+
+extern void gatt_profile_db_init(void);
+extern void gatt_set_ch_state(tGATT_TCB *p_tcb, tGATT_CH_STATE ch_state);
+extern tGATT_CH_STATE gatt_get_ch_state(tGATT_TCB *p_tcb);
+extern void gatt_init_srv_chg(void);
+extern void gatt_proc_srv_chg (void);
+extern void gatt_send_srv_chg_ind (BD_ADDR peer_bda);
+extern void gatt_chk_srv_chg(tGATTS_SRV_CHG *p_srv_chg_clt);
+extern void gatt_add_a_bonded_dev_for_srv_chg (BD_ADDR bda);
+
+/* from gatt_attr.c */
+extern UINT16 gatt_profile_find_conn_id_by_bd_addr(BD_ADDR bda);
+
+
+/* Functions provided by att_protocol.c */
+extern tGATT_STATUS attp_send_cl_msg (tGATT_TCB *p_tcb, UINT16 clcb_idx, UINT8 op_code, tGATT_CL_MSG *p_msg);
+extern BT_HDR *attp_build_sr_msg(tGATT_TCB *p_tcb, UINT8 op_code, tGATT_SR_MSG *p_msg);
+extern tGATT_STATUS attp_send_sr_msg (tGATT_TCB *p_tcb, BT_HDR *p_msg);
+extern tGATT_STATUS attp_send_msg_to_l2cap(tGATT_TCB *p_tcb, BT_HDR *p_toL2CAP);
+
+/* utility functions */
+extern UINT8 * gatt_dbg_op_name(UINT8 op_code);
+extern UINT32 gatt_add_sdp_record (tBT_UUID *p_uuid, UINT16 start_hdl, UINT16 end_hdl);
+extern BOOLEAN gatt_parse_uuid_from_cmd(tBT_UUID *p_uuid, UINT16 len, UINT8 **p_data);
+extern UINT8 gatt_build_uuid_to_stream(UINT8 **p_dst, tBT_UUID uuid);
+extern BOOLEAN gatt_uuid_compare(tBT_UUID src, tBT_UUID tar);
+extern void gatt_convert_uuid32_to_uuid128(UINT8 uuid_128[LEN_UUID_128], UINT32 uuid_32);
+extern void gatt_sr_get_sec_info(BD_ADDR rem_bda, tBT_TRANSPORT transport, UINT8 *p_sec_flag, UINT8 *p_key_size);
+extern void gatt_start_rsp_timer(UINT16 clcb_idx);
+extern void gatt_start_conf_timer(tGATT_TCB    *p_tcb);
+extern void gatt_rsp_timeout(void *data);
+extern void gatt_indication_confirmation_timeout(void *data);
+extern void gatt_ind_ack_timeout(void *data);
+extern void gatt_start_ind_ack_timer(tGATT_TCB *p_tcb);
+extern tGATT_STATUS gatt_send_error_rsp(tGATT_TCB *p_tcb, UINT8 err_code, UINT8 op_code, UINT16 handle, BOOLEAN deq);
+extern void gatt_dbg_display_uuid(tBT_UUID bt_uuid);
+extern tGATT_PENDING_ENC_CLCB* gatt_add_pending_enc_channel_clcb(tGATT_TCB *p_tcb, tGATT_CLCB *p_clcb );
+
+extern tGATTS_PENDING_NEW_SRV_START *gatt_sr_is_new_srv_chg(tBT_UUID *p_app_uuid128, tBT_UUID *p_svc_uuid, UINT16 svc_inst);
+
+extern BOOLEAN gatt_is_srv_chg_ind_pending (tGATT_TCB *p_tcb);
+extern tGATTS_SRV_CHG *gatt_is_bda_in_the_srv_chg_clt_list (BD_ADDR bda);
+
+extern BOOLEAN gatt_find_the_connected_bda(UINT8 start_idx, BD_ADDR bda, UINT8 *p_found_idx, tBT_TRANSPORT *p_transport);
+extern void gatt_set_srv_chg(void);
+extern void gatt_delete_dev_from_srv_chg_clt_list(BD_ADDR bd_addr);
+extern tGATT_VALUE *gatt_add_pending_ind(tGATT_TCB  *p_tcb, tGATT_VALUE *p_ind);
+extern tGATTS_PENDING_NEW_SRV_START *gatt_add_pending_new_srv_start( tGATTS_HNDL_RANGE *p_new_srv_start);
+extern void gatt_free_srvc_db_buffer_app_id(tBT_UUID *p_app_id);
+extern BOOLEAN gatt_update_listen_mode(void);
+extern BOOLEAN gatt_cl_send_next_cmd_inq(tGATT_TCB *p_tcb);
+
+/* reserved handle list */
+extern tGATT_HDL_LIST_ELEM *gatt_find_hdl_buffer_by_app_id (tBT_UUID *p_app_uuid128, tBT_UUID *p_svc_uuid, UINT16 svc_inst);
+extern tGATT_HDL_LIST_ELEM *gatt_find_hdl_buffer_by_handle(UINT16 handle);
+extern tGATT_HDL_LIST_ELEM *gatt_alloc_hdl_buffer(void);
+extern void gatt_free_hdl_buffer(tGATT_HDL_LIST_ELEM *p);
+extern BOOLEAN gatt_is_last_attribute(tGATT_SRV_LIST_INFO *p_list, tGATT_SRV_LIST_ELEM *p_start, tBT_UUID value);
+extern void gatt_update_last_pri_srv_info(tGATT_SRV_LIST_INFO *p_list);
+extern BOOLEAN gatt_add_a_srv_to_list(tGATT_SRV_LIST_INFO *p_list, tGATT_SRV_LIST_ELEM *p_new);
+extern BOOLEAN gatt_remove_a_srv_from_list(tGATT_SRV_LIST_INFO *p_list, tGATT_SRV_LIST_ELEM *p_remove);
+extern BOOLEAN gatt_add_an_item_to_list(tGATT_HDL_LIST_INFO *p_list, tGATT_HDL_LIST_ELEM *p_new);
+extern BOOLEAN gatt_remove_an_item_from_list(tGATT_HDL_LIST_INFO *p_list, tGATT_HDL_LIST_ELEM *p_remove);
+extern tGATTS_SRV_CHG *gatt_add_srv_chg_clt(tGATTS_SRV_CHG *p_srv_chg);
+
+/* for background connection */
+extern BOOLEAN gatt_update_auto_connect_dev (tGATT_IF gatt_if, BOOLEAN add, BD_ADDR bd_addr, BOOLEAN is_initiator);
+extern BOOLEAN gatt_is_bg_dev_for_app(tGATT_BG_CONN_DEV *p_dev, tGATT_IF gatt_if);
+extern BOOLEAN gatt_remove_bg_dev_for_app(tGATT_IF gatt_if, BD_ADDR bd_addr);
+extern UINT8 gatt_get_num_apps_for_bg_dev(BD_ADDR bd_addr);
+extern BOOLEAN gatt_find_app_for_bg_dev(BD_ADDR bd_addr, tGATT_IF *p_gatt_if);
+extern tGATT_BG_CONN_DEV * gatt_find_bg_dev(BD_ADDR remote_bda);
+extern void gatt_deregister_bgdev_list(tGATT_IF gatt_if);
+extern void gatt_reset_bgdev_list(void);
+
+/* server function */
+extern UINT8 gatt_sr_find_i_rcb_by_handle(UINT16 handle);
+extern UINT8 gatt_sr_find_i_rcb_by_app_id(tBT_UUID *p_app_uuid128, tBT_UUID *p_svc_uuid, UINT16 svc_inst);
+extern UINT8 gatt_sr_alloc_rcb(tGATT_HDL_LIST_ELEM *p_list);
+extern tGATT_STATUS gatt_sr_process_app_rsp (tGATT_TCB *p_tcb, tGATT_IF gatt_if, UINT32 trans_id, UINT8 op_code, tGATT_STATUS status, tGATTS_RSP *p_msg);
+extern void gatt_server_handle_client_req (tGATT_TCB *p_tcb, UINT8 op_code,
+                                           UINT16 len, UINT8 *p_data);
+extern void gatt_sr_send_req_callback(UINT16 conn_id,  UINT32 trans_id,
+                                      UINT8 op_code, tGATTS_DATA *p_req_data);
+extern UINT32 gatt_sr_enqueue_cmd (tGATT_TCB *p_tcb, UINT8 op_code, UINT16 handle);
+extern BOOLEAN gatt_cancel_open(tGATT_IF gatt_if, BD_ADDR bda);
+
+/*   */
+
+extern tGATT_REG *gatt_get_regcb (tGATT_IF gatt_if);
+extern BOOLEAN gatt_is_clcb_allocated (UINT16 conn_id);
+extern tGATT_CLCB *gatt_clcb_alloc (UINT16 conn_id);
+extern void gatt_clcb_dealloc (tGATT_CLCB *p_clcb);
+
+extern void gatt_sr_copy_prep_cnt_to_cback_cnt(tGATT_TCB *p_tcb );
+extern BOOLEAN gatt_sr_is_cback_cnt_zero(tGATT_TCB *p_tcb );
+extern BOOLEAN gatt_sr_is_prep_cnt_zero(tGATT_TCB *p_tcb );
+extern void gatt_sr_reset_cback_cnt(tGATT_TCB *p_tcb );
+extern void gatt_sr_reset_prep_cnt(tGATT_TCB *p_tcb );
+extern void gatt_sr_update_cback_cnt(tGATT_TCB *p_tcb, tGATT_IF gatt_if, BOOLEAN is_inc, BOOLEAN is_reset_first);
+extern void gatt_sr_update_prep_cnt(tGATT_TCB *p_tcb, tGATT_IF gatt_if, BOOLEAN is_inc, BOOLEAN is_reset_first);
+
+extern BOOLEAN gatt_find_app_hold_link(tGATT_TCB *p_tcb, UINT8 start_idx, UINT8 *p_found_idx, tGATT_IF *p_gatt_if);
+extern UINT8 gatt_num_apps_hold_link(tGATT_TCB *p_tcb);
+extern UINT8 gatt_num_clcb_by_bd_addr(BD_ADDR bda);
+extern tGATT_TCB * gatt_find_tcb_by_cid(UINT16 lcid);
+extern tGATT_TCB * gatt_allocate_tcb_by_bdaddr(BD_ADDR bda, tBT_TRANSPORT transport);
+extern tGATT_TCB * gatt_get_tcb_by_idx(UINT8 tcb_idx);
+extern tGATT_TCB * gatt_find_tcb_by_addr(BD_ADDR bda, tBT_TRANSPORT transport);
+extern BOOLEAN gatt_send_ble_burst_data (BD_ADDR remote_bda,  BT_HDR *p_buf);
+
+/* GATT client functions */
+extern void gatt_dequeue_sr_cmd (tGATT_TCB *p_tcb);
+extern UINT8 gatt_send_write_msg(tGATT_TCB *p_tcb, UINT16 clcb_idx, UINT8 op_code, UINT16 handle,
+                                 UINT16 len, UINT16 offset, UINT8 *p_data);
+extern void gatt_cleanup_upon_disc(BD_ADDR bda, UINT16 reason, tBT_TRANSPORT transport);
+extern void gatt_end_operation(tGATT_CLCB *p_clcb, tGATT_STATUS status, void *p_data);
+
+extern void gatt_act_discovery(tGATT_CLCB *p_clcb);
+extern void gatt_act_read(tGATT_CLCB *p_clcb, UINT16 offset);
+extern void gatt_act_write(tGATT_CLCB *p_clcb, UINT8 sec_act);
+extern UINT8 gatt_act_send_browse(tGATT_TCB *p_tcb, UINT16 index, UINT8 op, UINT16 s_handle, UINT16 e_handle,
+                                  tBT_UUID uuid);
+extern tGATT_CLCB *gatt_cmd_dequeue(tGATT_TCB *p_tcb, UINT8 *p_opcode);
+extern BOOLEAN gatt_cmd_enq(tGATT_TCB *p_tcb, UINT16 clcb_idx, BOOLEAN to_send, UINT8 op_code, BT_HDR *p_buf);
+extern void gatt_client_handle_server_rsp (tGATT_TCB *p_tcb, UINT8 op_code,
+                                           UINT16 len, UINT8 *p_data);
+extern void gatt_send_queue_write_cancel (tGATT_TCB *p_tcb, tGATT_CLCB *p_clcb, tGATT_EXEC_FLAG flag);
+
+/* gatt_auth.c */
+extern BOOLEAN gatt_security_check_start(tGATT_CLCB *p_clcb);
+extern void gatt_verify_signature(tGATT_TCB *p_tcb, BT_HDR *p_buf);
+extern tGATT_SEC_ACTION gatt_determine_sec_act(tGATT_CLCB *p_clcb );
+extern tGATT_STATUS gatt_get_link_encrypt_status(tGATT_TCB *p_tcb);
+extern tGATT_SEC_ACTION gatt_get_sec_act(tGATT_TCB *p_tcb);
+extern void gatt_set_sec_act(tGATT_TCB *p_tcb, tGATT_SEC_ACTION sec_act);
+
+/* gatt_db.c */
+extern BOOLEAN gatts_init_service_db (tGATT_SVC_DB *p_db, tBT_UUID *p_service, BOOLEAN is_pri, UINT16 s_hdl, UINT16 num_handle);
+extern UINT16 gatts_add_included_service (tGATT_SVC_DB *p_db, UINT16 s_handle, UINT16 e_handle, tBT_UUID service);
+extern UINT16 gatts_add_characteristic (tGATT_SVC_DB *p_db, tGATT_PERM perm, tGATT_CHAR_PROP property, tBT_UUID *p_char_uuid);
+extern UINT16 gatts_add_char_descr (tGATT_SVC_DB *p_db, tGATT_PERM perm, tBT_UUID *p_dscp_uuid);
+extern tGATT_STATUS gatts_db_read_attr_value_by_type (tGATT_TCB *p_tcb, tGATT_SVC_DB *p_db, UINT8 op_code, BT_HDR *p_rsp, UINT16 s_handle,
+                                                      UINT16 e_handle, tBT_UUID type, UINT16 *p_len, tGATT_SEC_FLAG sec_flag, UINT8 key_size,UINT32 trans_id, UINT16 *p_cur_handle);
+extern tGATT_STATUS gatts_read_attr_value_by_handle(tGATT_TCB *p_tcb,tGATT_SVC_DB *p_db, UINT8 op_code, UINT16 handle, UINT16 offset,
+                                                    UINT8 *p_value, UINT16 *p_len, UINT16 mtu,tGATT_SEC_FLAG sec_flag,UINT8 key_size,UINT32 trans_id);
+extern tGATT_STATUS gatts_write_attr_perm_check (tGATT_SVC_DB *p_db, UINT8 op_code,UINT16 handle, UINT16 offset, UINT8 *p_data,
+                                                 UINT16 len, tGATT_SEC_FLAG sec_flag, UINT8 key_size);
+extern tGATT_STATUS gatts_read_attr_perm_check(tGATT_SVC_DB *p_db, BOOLEAN is_long, UINT16 handle, tGATT_SEC_FLAG sec_flag,UINT8 key_size);
+extern void gatts_update_srv_list_elem(UINT8 i_sreg, UINT16 handle, BOOLEAN is_primary);
+extern tBT_UUID * gatts_get_service_uuid (tGATT_SVC_DB *p_db);
+
+extern void gatt_reset_bgdev_list(void);
+#endif
diff --git a/rtkbt/code/bt/stack/gatt/gatt_main.c b/rtkbt/code/bt/stack/gatt/gatt_main.c
new file mode 100755
index 0000000..bda5b41
--- /dev/null
+++ b/rtkbt/code/bt/stack/gatt/gatt_main.c
@@ -0,0 +1,1253 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2008-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  this file contains the main ATT functions
+ *
+ ******************************************************************************/
+
+#include "bt_target.h"
+
+#if BLE_INCLUDED == TRUE
+
+#include "bt_common.h"
+#include "gatt_int.h"
+#include "l2c_api.h"
+#include "btm_int.h"
+#include "btm_ble_int.h"
+#include "bt_utils.h"
+
+/* Configuration flags. */
+#define GATT_L2C_CFG_IND_DONE   (1<<0)
+#define GATT_L2C_CFG_CFM_DONE   (1<<1)
+
+/* minimum GATT MTU size over BR/EDR link
+*/
+#define GATT_MIN_BR_MTU_SIZE       48
+
+/********************************************************************************/
+/*              L O C A L    F U N C T I O N     P R O T O T Y P E S            */
+/********************************************************************************/
+static void gatt_le_connect_cback (UINT16 chan, BD_ADDR bd_addr, BOOLEAN connected,
+        UINT16 reason, tBT_TRANSPORT transport);
+static void gatt_le_data_ind (UINT16 chan, BD_ADDR bd_addr, BT_HDR *p_buf);
+static void gatt_le_cong_cback(BD_ADDR remote_bda, BOOLEAN congest);
+
+static void gatt_l2cif_connect_ind_cback (BD_ADDR  bd_addr, UINT16 l2cap_cid,
+        UINT16 psm, UINT8 l2cap_id);
+static void gatt_l2cif_connect_cfm_cback (UINT16 l2cap_cid, UINT16 result);
+static void gatt_l2cif_config_ind_cback (UINT16 l2cap_cid, tL2CAP_CFG_INFO *p_cfg);
+static void gatt_l2cif_config_cfm_cback (UINT16 l2cap_cid, tL2CAP_CFG_INFO *p_cfg);
+static void gatt_l2cif_disconnect_ind_cback (UINT16 l2cap_cid, BOOLEAN ack_needed);
+static void gatt_l2cif_disconnect_cfm_cback (UINT16 l2cap_cid, UINT16 result);
+static void gatt_l2cif_data_ind_cback (UINT16 l2cap_cid, BT_HDR *p_msg);
+static void gatt_send_conn_cback (tGATT_TCB *p_tcb);
+static void gatt_l2cif_congest_cback (UINT16 cid, BOOLEAN congested);
+
+static const tL2CAP_APPL_INFO dyn_info =
+{
+    gatt_l2cif_connect_ind_cback,
+    gatt_l2cif_connect_cfm_cback,
+    NULL,
+    gatt_l2cif_config_ind_cback,
+    gatt_l2cif_config_cfm_cback,
+    gatt_l2cif_disconnect_ind_cback,
+    gatt_l2cif_disconnect_cfm_cback,
+    NULL,
+    gatt_l2cif_data_ind_cback,
+    gatt_l2cif_congest_cback,
+    NULL
+} ;
+
+#if GATT_DYNAMIC_MEMORY == FALSE
+tGATT_CB  gatt_cb;
+#endif
+
+/*******************************************************************************
+**
+** Function         gatt_init
+**
+** Description      This function is enable the GATT profile on the device.
+**                  It clears out the control blocks, and registers with L2CAP.
+**
+** Returns          void
+**
+*******************************************************************************/
+void gatt_init (void)
+{
+    tL2CAP_FIXED_CHNL_REG  fixed_reg;
+
+    GATT_TRACE_DEBUG("gatt_init()");
+
+    memset (&gatt_cb, 0, sizeof(tGATT_CB));
+    memset (&fixed_reg, 0, sizeof(tL2CAP_FIXED_CHNL_REG));
+
+#if defined(GATT_INITIAL_TRACE_LEVEL)
+    gatt_cb.trace_level = GATT_INITIAL_TRACE_LEVEL;
+#else
+    gatt_cb.trace_level = BT_TRACE_LEVEL_NONE;    /* No traces */
+#endif
+    gatt_cb.def_mtu_size = GATT_DEF_BLE_MTU_SIZE;
+    gatt_cb.sign_op_queue = fixed_queue_new(SIZE_MAX);
+    gatt_cb.srv_chg_clt_q = fixed_queue_new(SIZE_MAX);
+    gatt_cb.pending_new_srv_start_q = fixed_queue_new(SIZE_MAX);
+    /* First, register fixed L2CAP channel for ATT over BLE */
+    fixed_reg.fixed_chnl_opts.mode         = L2CAP_FCR_BASIC_MODE;
+    fixed_reg.fixed_chnl_opts.max_transmit = 0xFF;
+    fixed_reg.fixed_chnl_opts.rtrans_tout  = 2000;
+    fixed_reg.fixed_chnl_opts.mon_tout     = 12000;
+    fixed_reg.fixed_chnl_opts.mps          = 670;
+    fixed_reg.fixed_chnl_opts.tx_win_sz    = 1;
+
+    fixed_reg.pL2CA_FixedConn_Cb = gatt_le_connect_cback;
+    fixed_reg.pL2CA_FixedData_Cb = gatt_le_data_ind;
+    fixed_reg.pL2CA_FixedCong_Cb = gatt_le_cong_cback;      /* congestion callback */
+    fixed_reg.default_idle_tout  = 0xffff;                  /* 0xffff default idle timeout */
+
+    L2CA_RegisterFixedChannel (L2CAP_ATT_CID, &fixed_reg);
+
+    /* Now, register with L2CAP for ATT PSM over BR/EDR */
+    if (!L2CA_Register (BT_PSM_ATT, (tL2CAP_APPL_INFO *) &dyn_info))
+    {
+        GATT_TRACE_ERROR ("ATT Dynamic Registration failed");
+    }
+
+    BTM_SetSecurityLevel(TRUE, "", BTM_SEC_SERVICE_ATT, BTM_SEC_NONE, BT_PSM_ATT, 0, 0);
+    BTM_SetSecurityLevel(FALSE, "", BTM_SEC_SERVICE_ATT, BTM_SEC_NONE, BT_PSM_ATT, 0, 0);
+
+    gatt_cb.hdl_cfg.gatt_start_hdl = GATT_GATT_START_HANDLE;
+    gatt_cb.hdl_cfg.gap_start_hdl  = GATT_GAP_START_HANDLE;
+    gatt_cb.hdl_cfg.app_start_hdl  = GATT_APP_START_HANDLE;
+    gatt_profile_db_init();
+
+}
+
+
+/*******************************************************************************
+**
+** Function         gatt_free
+**
+** Description      This function frees resources used by the GATT profile.
+**
+** Returns          void
+**
+*******************************************************************************/
+void gatt_free(void)
+{
+    int i;
+    GATT_TRACE_DEBUG("gatt_free()");
+
+    fixed_queue_free(gatt_cb.sign_op_queue, NULL);
+    gatt_cb.sign_op_queue = NULL;
+    fixed_queue_free(gatt_cb.srv_chg_clt_q, NULL);
+    gatt_cb.srv_chg_clt_q = NULL;
+    fixed_queue_free(gatt_cb.pending_new_srv_start_q, NULL);
+    gatt_cb.pending_new_srv_start_q = NULL;
+    for (i = 0; i < GATT_MAX_PHY_CHANNEL; i++)
+    {
+        fixed_queue_free(gatt_cb.tcb[i].pending_enc_clcb, NULL);
+        gatt_cb.tcb[i].pending_enc_clcb = NULL;
+
+        fixed_queue_free(gatt_cb.tcb[i].pending_ind_q, NULL);
+        gatt_cb.tcb[i].pending_ind_q = NULL;
+
+        alarm_free(gatt_cb.tcb[i].conf_timer);
+        gatt_cb.tcb[i].conf_timer = NULL;
+
+        alarm_free(gatt_cb.tcb[i].ind_ack_timer);
+        gatt_cb.tcb[i].ind_ack_timer = NULL;
+
+        fixed_queue_free(gatt_cb.tcb[i].sr_cmd.multi_rsp_q, NULL);
+        gatt_cb.tcb[i].sr_cmd.multi_rsp_q = NULL;
+    }
+    for (i = 0; i < GATT_MAX_SR_PROFILES; i++)
+    {
+        gatt_free_hdl_buffer(&gatt_cb.hdl_list[i]);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         gatt_connect
+**
+** Description      This function is called to initiate a connection to a peer device.
+**
+** Parameter        rem_bda: remote device address to connect to.
+**
+** Returns          TRUE if connection is started, otherwise return FALSE.
+**
+*******************************************************************************/
+BOOLEAN gatt_connect (BD_ADDR rem_bda, tGATT_TCB *p_tcb, tBT_TRANSPORT transport)
+{
+    BOOLEAN             gatt_ret = FALSE;
+
+    if (gatt_get_ch_state(p_tcb) != GATT_CH_OPEN)
+        gatt_set_ch_state(p_tcb, GATT_CH_CONN);
+
+    if (transport == BT_TRANSPORT_LE)
+    {
+        p_tcb->att_lcid = L2CAP_ATT_CID;
+        gatt_ret = L2CA_ConnectFixedChnl (L2CAP_ATT_CID, rem_bda);
+    }
+    else
+    {
+        if ((p_tcb->att_lcid = L2CA_ConnectReq(BT_PSM_ATT, rem_bda)) != 0)
+            gatt_ret = TRUE;
+    }
+
+    return gatt_ret;
+}
+
+/*******************************************************************************
+**
+** Function         gatt_disconnect
+**
+** Description      This function is called to disconnect to an ATT device.
+**
+** Parameter        p_tcb: pointer to the TCB to disconnect.
+**
+** Returns          TRUE: if connection found and to be disconnected; otherwise
+**                  return FALSE.
+**
+*******************************************************************************/
+BOOLEAN gatt_disconnect (tGATT_TCB *p_tcb)
+{
+    BOOLEAN             ret = FALSE;
+    tGATT_CH_STATE      ch_state;
+
+    GATT_TRACE_EVENT ("%s", __func__);
+
+    if (p_tcb != NULL)
+    {
+        ret = TRUE;
+        if ( (ch_state = gatt_get_ch_state(p_tcb)) != GATT_CH_CLOSING )
+        {
+            if (p_tcb->att_lcid == L2CAP_ATT_CID)
+            {
+                if (ch_state == GATT_CH_OPEN)
+                {
+                    /* only LCB exist between remote device and local */
+                    ret = L2CA_RemoveFixedChnl (L2CAP_ATT_CID, p_tcb->peer_bda);
+                }
+                else
+                {
+                    gatt_set_ch_state(p_tcb, GATT_CH_CLOSING);
+                    ret = L2CA_CancelBleConnectReq (p_tcb->peer_bda);
+                }
+            }
+            else
+            {
+                if ((ch_state == GATT_CH_OPEN) || (ch_state == GATT_CH_CFG))
+                    ret = L2CA_DisconnectReq(p_tcb->att_lcid);
+                else
+                    GATT_TRACE_DEBUG ("%s gatt_disconnect channel not opened", __func__);
+            }
+        }
+        else
+        {
+            GATT_TRACE_DEBUG ("%s already in closing state", __func__);
+        }
+    }
+
+    return ret;
+}
+
+/*******************************************************************************
+**
+** Function         gatt_update_app_hold_link_status
+**
+** Description      Update the application use link status
+**
+** Returns          void.
+**
+*******************************************************************************/
+void gatt_update_app_hold_link_status (tGATT_IF gatt_if, tGATT_TCB *p_tcb, BOOLEAN is_add)
+{
+    UINT8 i;
+    BOOLEAN found=FALSE;
+
+    if (p_tcb == NULL)
+    {
+        GATT_TRACE_ERROR("gatt_update_app_hold_link_status p_tcb=NULL");
+        return;
+    }
+
+
+    for (i=0; i<GATT_MAX_APPS; i++)
+    {
+        if (p_tcb->app_hold_link[i] ==  gatt_if)
+        {
+            found = TRUE;
+            if (!is_add)
+            {
+                p_tcb->app_hold_link[i] = 0;
+                break;
+            }
+        }
+    }
+
+    if (!found && is_add)
+    {
+        for (i=0; i<GATT_MAX_APPS; i++)
+        {
+            if (p_tcb->app_hold_link[i] ==  0)
+            {
+                p_tcb->app_hold_link[i] = gatt_if;
+                found = TRUE;
+                break;
+            }
+        }
+    }
+
+    GATT_TRACE_DEBUG("gatt_update_app_hold_link_status found=%d[1-found] idx=%d gatt_if=%d is_add=%d", found, i, gatt_if, is_add);
+
+}
+
+/*******************************************************************************
+**
+** Function         gatt_update_app_use_link_flag
+**
+** Description      Update the application use link flag and optional to check the acl link
+**                  if the link is up then set the idle time out accordingly
+**
+** Returns          void.
+**
+*******************************************************************************/
+void gatt_update_app_use_link_flag (tGATT_IF gatt_if, tGATT_TCB *p_tcb, BOOLEAN is_add, BOOLEAN check_acl_link)
+{
+    GATT_TRACE_DEBUG("gatt_update_app_use_link_flag  is_add=%d chk_link=%d",
+                      is_add, check_acl_link);
+
+    gatt_update_app_hold_link_status(gatt_if, p_tcb, is_add);
+
+    if (check_acl_link &&
+        p_tcb &&
+         p_tcb->att_lcid == L2CAP_ATT_CID && /* only update link idle timer for fixed channel */
+        (BTM_GetHCIConnHandle(p_tcb->peer_bda, p_tcb->transport) != GATT_INVALID_ACL_HANDLE))
+    {
+        if (is_add)
+        {
+            GATT_TRACE_DEBUG("GATT disables link idle timer");
+            /* acl link is connected disable the idle timeout */
+            GATT_SetIdleTimeout(p_tcb->peer_bda, GATT_LINK_NO_IDLE_TIMEOUT, p_tcb->transport);
+        }
+        else
+        {
+            if (!gatt_num_apps_hold_link(p_tcb))
+            {
+                /* acl link is connected but no application needs to use the link
+                   so set the timeout value to GATT_LINK_IDLE_TIMEOUT_WHEN_NO_APP seconds */
+                GATT_TRACE_DEBUG("GATT starts link idle timer =%d sec", GATT_LINK_IDLE_TIMEOUT_WHEN_NO_APP);
+                GATT_SetIdleTimeout(p_tcb->peer_bda, GATT_LINK_IDLE_TIMEOUT_WHEN_NO_APP, p_tcb->transport);
+            }
+
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         gatt_act_connect
+**
+** Description      GATT connection initiation.
+**
+** Returns          void.
+**
+*******************************************************************************/
+BOOLEAN gatt_act_connect (tGATT_REG *p_reg, BD_ADDR bd_addr, tBT_TRANSPORT transport)
+{
+    BOOLEAN     ret = FALSE;
+    tGATT_TCB   *p_tcb;
+    UINT8       st;
+
+    if ((p_tcb = gatt_find_tcb_by_addr(bd_addr, transport)) != NULL)
+    {
+        ret = TRUE;
+        st = gatt_get_ch_state(p_tcb);
+
+        /* before link down, another app try to open a GATT connection */
+        if(st == GATT_CH_OPEN &&  gatt_num_apps_hold_link(p_tcb) == 0 &&
+            transport == BT_TRANSPORT_LE )
+        {
+            if (!gatt_connect(bd_addr,  p_tcb, transport))
+                ret = FALSE;
+        }
+        else if(st == GATT_CH_CLOSING)
+        {
+            /* need to complete the closing first */
+            ret = FALSE;
+        }
+    }
+    else
+    {
+        if ((p_tcb = gatt_allocate_tcb_by_bdaddr(bd_addr, transport)) != NULL)
+        {
+            if (!gatt_connect(bd_addr,  p_tcb, transport))
+            {
+                GATT_TRACE_ERROR("gatt_connect failed");
+                fixed_queue_free(p_tcb->pending_enc_clcb, NULL);
+                fixed_queue_free(p_tcb->pending_ind_q, NULL);
+                fixed_queue_free(p_tcb->sr_cmd.multi_rsp_q, NULL);
+                memset(p_tcb, 0, sizeof(tGATT_TCB));
+            }
+            else
+                ret = TRUE;
+        }
+        else
+        {
+            ret = 0;
+            GATT_TRACE_ERROR("Max TCB for gatt_if [%d] reached.", p_reg->gatt_if);
+        }
+    }
+
+    if (ret)
+    {
+        gatt_update_app_use_link_flag(p_reg->gatt_if, p_tcb, TRUE, FALSE);
+    }
+
+    return ret;
+}
+
+/*******************************************************************************
+**
+** Function         gatt_le_connect_cback
+**
+** Description      This callback function is called by L2CAP to indicate that
+**                  the ATT fixed channel for LE is
+**                      connected (conn = TRUE)/disconnected (conn = FALSE).
+**
+*******************************************************************************/
+static void gatt_le_connect_cback (UINT16 chan, BD_ADDR bd_addr, BOOLEAN connected,
+                                   UINT16 reason, tBT_TRANSPORT transport)
+{
+
+    tGATT_TCB       *p_tcb = gatt_find_tcb_by_addr(bd_addr, transport);
+    BOOLEAN                 check_srv_chg = FALSE;
+    tGATTS_SRV_CHG          *p_srv_chg_clt=NULL;
+
+    /* ignore all fixed channel connect/disconnect on BR/EDR link for GATT */
+    if (transport == BT_TRANSPORT_BR_EDR)
+        return;
+
+    GATT_TRACE_DEBUG ("GATT   ATT protocol channel with BDA: %08x%04x is %s",
+                       (bd_addr[0]<<24)+(bd_addr[1]<<16)+(bd_addr[2]<<8)+bd_addr[3],
+                       (bd_addr[4]<<8)+bd_addr[5], (connected) ? "connected" : "disconnected");
+
+    if ((p_srv_chg_clt = gatt_is_bda_in_the_srv_chg_clt_list(bd_addr)) != NULL)
+    {
+        check_srv_chg = TRUE;
+    }
+    else
+    {
+        if (btm_sec_is_a_bonded_dev(bd_addr))
+            gatt_add_a_bonded_dev_for_srv_chg(bd_addr);
+    }
+
+    if (connected)
+    {
+        /* do we have a channel initiating a connection? */
+        if (p_tcb)
+        {
+            /* we are initiating connection */
+            if ( gatt_get_ch_state(p_tcb) == GATT_CH_CONN)
+            {
+                /* send callback */
+                gatt_set_ch_state(p_tcb, GATT_CH_OPEN);
+                p_tcb->payload_size = GATT_DEF_BLE_MTU_SIZE;
+
+                gatt_send_conn_cback(p_tcb);
+            }
+            if (check_srv_chg)
+                gatt_chk_srv_chg (p_srv_chg_clt);
+        }
+        /* this is incoming connection or background connection callback */
+
+        else
+        {
+            if ((p_tcb = gatt_allocate_tcb_by_bdaddr(bd_addr, BT_TRANSPORT_LE)) != NULL)
+            {
+                p_tcb->att_lcid = L2CAP_ATT_CID;
+
+                gatt_set_ch_state(p_tcb, GATT_CH_OPEN);
+
+                p_tcb->payload_size = GATT_DEF_BLE_MTU_SIZE;
+
+                gatt_send_conn_cback (p_tcb);
+                if (check_srv_chg)
+                {
+                    gatt_chk_srv_chg (p_srv_chg_clt);
+                }
+            }
+            else
+            {
+                GATT_TRACE_ERROR("CCB max out, no rsources");
+            }
+        }
+    }
+    else
+    {
+        gatt_cleanup_upon_disc(bd_addr, reason, transport);
+        GATT_TRACE_DEBUG ("ATT disconnected");
+    }
+}
+
+/*******************************************************************************
+**
+** Function         gatt_channel_congestion
+**
+** Description      This function is called to process the congestion callback
+**                  from lcb
+**
+** Returns          void
+**
+*******************************************************************************/
+static void gatt_channel_congestion(tGATT_TCB *p_tcb, BOOLEAN congested)
+{
+    UINT8 i = 0;
+    tGATT_REG *p_reg=NULL;
+    UINT16 conn_id;
+
+    /* if uncongested, check to see if there is any more pending data */
+    if (p_tcb != NULL && congested == FALSE)
+    {
+        gatt_cl_send_next_cmd_inq(p_tcb);
+    }
+    /* notifying all applications for the connection up event */
+    for (i = 0, p_reg = gatt_cb.cl_rcb ; i < GATT_MAX_APPS; i++, p_reg++)
+    {
+        if (p_reg->in_use)
+        {
+            if (p_reg->app_cb.p_congestion_cb)
+            {
+                conn_id = GATT_CREATE_CONN_ID(p_tcb->tcb_idx, p_reg->gatt_if);
+                (*p_reg->app_cb.p_congestion_cb)(conn_id, congested);
+            }
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         gatt_le_cong_cback
+**
+** Description      This function is called when GATT fixed channel is congested
+**                  or uncongested.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void gatt_le_cong_cback(BD_ADDR remote_bda, BOOLEAN congested)
+{
+    tGATT_TCB *p_tcb = gatt_find_tcb_by_addr(remote_bda, BT_TRANSPORT_LE);
+
+    /* if uncongested, check to see if there is any more pending data */
+    if (p_tcb != NULL)
+    {
+        gatt_channel_congestion(p_tcb, congested);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         gatt_le_data_ind
+**
+** Description      This function is called when data is received from L2CAP.
+**                  if we are the originator of the connection, we are the ATT
+**                  client, and the received message is queued up for the client.
+**
+**                  If we are the destination of the connection, we are the ATT
+**                  server, so the message is passed to the server processing
+**                  function.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void gatt_le_data_ind (UINT16 chan, BD_ADDR bd_addr, BT_HDR *p_buf)
+{
+    tGATT_TCB    *p_tcb;
+
+    /* Find CCB based on bd addr */
+    if ((p_tcb = gatt_find_tcb_by_addr (bd_addr, BT_TRANSPORT_LE)) != NULL &&
+        gatt_get_ch_state(p_tcb) >= GATT_CH_OPEN)
+    {
+        gatt_data_process(p_tcb, p_buf);
+    }
+    else
+    {
+        osi_free(p_buf);
+
+        if (p_tcb != NULL)
+        {
+            GATT_TRACE_WARNING ("ATT - Ignored L2CAP data while in state: %d",
+                                 gatt_get_ch_state(p_tcb));
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         gatt_l2cif_connect_ind
+**
+** Description      This function handles an inbound connection indication
+**                  from L2CAP. This is the case where we are acting as a
+**                  server.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void gatt_l2cif_connect_ind_cback (BD_ADDR  bd_addr, UINT16 lcid, UINT16 psm, UINT8 id)
+{
+    /* do we already have a control channel for this peer? */
+    UINT8       result = L2CAP_CONN_OK;
+    tL2CAP_CFG_INFO cfg;
+    tGATT_TCB       *p_tcb = gatt_find_tcb_by_addr(bd_addr, BT_TRANSPORT_BR_EDR);
+    UNUSED(psm);
+
+    GATT_TRACE_ERROR("Connection indication cid = %d", lcid);
+    /* new connection ? */
+    if (p_tcb == NULL)
+    {
+        /* allocate tcb */
+        if ((p_tcb = gatt_allocate_tcb_by_bdaddr(bd_addr, BT_TRANSPORT_BR_EDR)) == NULL)
+        {
+            /* no tcb available, reject L2CAP connection */
+            result = L2CAP_CONN_NO_RESOURCES;
+        }
+        else
+            p_tcb->att_lcid = lcid;
+
+    }
+    else /* existing connection , reject it */
+    {
+        result = L2CAP_CONN_NO_RESOURCES;
+    }
+
+    /* Send L2CAP connect rsp */
+    L2CA_ConnectRsp(bd_addr, id, lcid, result, 0);
+
+    /* if result ok, proceed with connection */
+    if (result == L2CAP_CONN_OK)
+    {
+        /* transition to configuration state */
+        gatt_set_ch_state(p_tcb, GATT_CH_CFG);
+
+        /* Send L2CAP config req */
+        memset(&cfg, 0, sizeof(tL2CAP_CFG_INFO));
+        cfg.mtu_present = TRUE;
+        cfg.mtu = GATT_MAX_MTU_SIZE;
+
+        L2CA_ConfigReq(lcid, &cfg);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         gatt_l2c_connect_cfm_cback
+**
+** Description      This is the L2CAP connect confirm callback function.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void gatt_l2cif_connect_cfm_cback(UINT16 lcid, UINT16 result)
+{
+    tGATT_TCB       *p_tcb;
+    tL2CAP_CFG_INFO cfg;
+
+    /* look up clcb for this channel */
+    if ((p_tcb = gatt_find_tcb_by_cid(lcid)) != NULL)
+    {
+        GATT_TRACE_DEBUG("gatt_l2c_connect_cfm_cback result: %d ch_state: %d, lcid:0x%x", result, gatt_get_ch_state(p_tcb), p_tcb->att_lcid);
+
+        /* if in correct state */
+        if (gatt_get_ch_state(p_tcb) == GATT_CH_CONN)
+        {
+            /* if result successful */
+            if (result == L2CAP_CONN_OK)
+            {
+                /* set channel state */
+                gatt_set_ch_state(p_tcb, GATT_CH_CFG);
+
+                /* Send L2CAP config req */
+                memset(&cfg, 0, sizeof(tL2CAP_CFG_INFO));
+                cfg.mtu_present = TRUE;
+                cfg.mtu = GATT_MAX_MTU_SIZE;
+                L2CA_ConfigReq(lcid, &cfg);
+            }
+            /* else initiating connection failure */
+            else
+            {
+                gatt_cleanup_upon_disc(p_tcb->peer_bda, result, GATT_TRANSPORT_BR_EDR);
+            }
+        }
+        else /* wrong state, disconnect it */
+        {
+            if (result == L2CAP_CONN_OK)
+            {
+                /* just in case the peer also accepts our connection - Send L2CAP disconnect req */
+                L2CA_DisconnectReq(lcid);
+            }
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         gatt_l2cif_config_cfm_cback
+**
+** Description      This is the L2CAP config confirm callback function.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void gatt_l2cif_config_cfm_cback(UINT16 lcid, tL2CAP_CFG_INFO *p_cfg)
+{
+    tGATT_TCB       *p_tcb;
+    tGATTS_SRV_CHG  *p_srv_chg_clt=NULL;
+
+    /* look up clcb for this channel */
+    if ((p_tcb = gatt_find_tcb_by_cid(lcid)) != NULL)
+    {
+        /* if in correct state */
+        if ( gatt_get_ch_state(p_tcb) == GATT_CH_CFG)
+        {
+            /* if result successful */
+            if (p_cfg->result == L2CAP_CFG_OK)
+            {
+                /* update flags */
+                p_tcb->ch_flags |= GATT_L2C_CFG_CFM_DONE;
+
+                /* if configuration complete */
+                if (p_tcb->ch_flags & GATT_L2C_CFG_IND_DONE)
+                {
+                    gatt_set_ch_state(p_tcb, GATT_CH_OPEN);
+
+                    if ((p_srv_chg_clt = gatt_is_bda_in_the_srv_chg_clt_list(p_tcb->peer_bda)) != NULL)
+                    {
+                        gatt_chk_srv_chg(p_srv_chg_clt);
+                    }
+                    else
+                    {
+                        if (btm_sec_is_a_bonded_dev(p_tcb->peer_bda))
+                            gatt_add_a_bonded_dev_for_srv_chg(p_tcb->peer_bda);
+                    }
+
+                    /* send callback */
+                    gatt_send_conn_cback(p_tcb);
+                }
+            }
+            /* else failure */
+            else
+            {
+                /* Send L2CAP disconnect req */
+                L2CA_DisconnectReq(lcid);
+            }
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         gatt_l2cif_config_ind_cback
+**
+** Description      This is the L2CAP config indication callback function.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void gatt_l2cif_config_ind_cback(UINT16 lcid, tL2CAP_CFG_INFO *p_cfg)
+{
+    tGATT_TCB       *p_tcb;
+    tGATTS_SRV_CHG  *p_srv_chg_clt=NULL;
+    /* look up clcb for this channel */
+    if ((p_tcb = gatt_find_tcb_by_cid(lcid)) != NULL)
+    {
+        /* GATT uses the smaller of our MTU and peer's MTU  */
+        if ( p_cfg->mtu_present &&
+             (p_cfg->mtu >= GATT_MIN_BR_MTU_SIZE && p_cfg->mtu < L2CAP_DEFAULT_MTU))
+            p_tcb->payload_size = p_cfg->mtu;
+        else
+            p_tcb->payload_size = L2CAP_DEFAULT_MTU;
+
+        /* send L2CAP configure response */
+        memset(p_cfg, 0, sizeof(tL2CAP_CFG_INFO));
+        p_cfg->result = L2CAP_CFG_OK;
+        L2CA_ConfigRsp(lcid, p_cfg);
+
+        /* if first config ind */
+        if ((p_tcb->ch_flags & GATT_L2C_CFG_IND_DONE) == 0)
+        {
+            /* update flags */
+            p_tcb->ch_flags |= GATT_L2C_CFG_IND_DONE;
+
+            /* if configuration complete */
+            if (p_tcb->ch_flags & GATT_L2C_CFG_CFM_DONE)
+            {
+                gatt_set_ch_state(p_tcb, GATT_CH_OPEN);
+                if ((p_srv_chg_clt = gatt_is_bda_in_the_srv_chg_clt_list(p_tcb->peer_bda)) != NULL)
+                {
+                    gatt_chk_srv_chg(p_srv_chg_clt);
+                }
+                else
+                {
+                    if (btm_sec_is_a_bonded_dev(p_tcb->peer_bda))
+                        gatt_add_a_bonded_dev_for_srv_chg(p_tcb->peer_bda);
+                }
+
+                /* send callback */
+                gatt_send_conn_cback(p_tcb);
+            }
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         gatt_l2cif_disconnect_ind_cback
+**
+** Description      This is the L2CAP disconnect indication callback function.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void gatt_l2cif_disconnect_ind_cback(UINT16 lcid, BOOLEAN ack_needed)
+{
+    tGATT_TCB       *p_tcb;
+    UINT16          reason;
+
+    /* look up clcb for this channel */
+    if ((p_tcb = gatt_find_tcb_by_cid(lcid)) != NULL)
+    {
+        if (ack_needed)
+        {
+            /* send L2CAP disconnect response */
+            L2CA_DisconnectRsp(lcid);
+        }
+        if (gatt_is_bda_in_the_srv_chg_clt_list(p_tcb->peer_bda) == NULL)
+        {
+            if (btm_sec_is_a_bonded_dev(p_tcb->peer_bda))
+                gatt_add_a_bonded_dev_for_srv_chg(p_tcb->peer_bda);
+        }
+        /* if ACL link is still up, no reason is logged, l2cap is disconnect from peer */
+        if ((reason = L2CA_GetDisconnectReason(p_tcb->peer_bda, p_tcb->transport)) == 0)
+            reason = GATT_CONN_TERMINATE_PEER_USER;
+
+        /* send disconnect callback */
+        gatt_cleanup_upon_disc(p_tcb->peer_bda, reason, GATT_TRANSPORT_BR_EDR);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         gatt_l2cif_disconnect_cfm_cback
+**
+** Description      This is the L2CAP disconnect confirm callback function.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void gatt_l2cif_disconnect_cfm_cback(UINT16 lcid, UINT16 result)
+{
+    tGATT_TCB       *p_tcb;
+    UINT16          reason;
+    UNUSED(result);
+
+    /* look up clcb for this channel */
+    if ((p_tcb = gatt_find_tcb_by_cid(lcid)) != NULL)
+    {
+        /* If the device is not in the service changed client list, add it... */
+        if (gatt_is_bda_in_the_srv_chg_clt_list(p_tcb->peer_bda) == NULL)
+        {
+            if (btm_sec_is_a_bonded_dev(p_tcb->peer_bda))
+                gatt_add_a_bonded_dev_for_srv_chg(p_tcb->peer_bda);
+        }
+
+        /* send disconnect callback */
+        /* if ACL link is still up, no reason is logged, l2cap is disconnect from peer */
+        if ((reason = L2CA_GetDisconnectReason(p_tcb->peer_bda, p_tcb->transport)) == 0)
+            reason = GATT_CONN_TERMINATE_LOCAL_HOST;
+
+        gatt_cleanup_upon_disc(p_tcb->peer_bda, reason, GATT_TRANSPORT_BR_EDR);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         gatt_l2cif_data_ind_cback
+**
+** Description      This is the L2CAP data indication callback function.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void gatt_l2cif_data_ind_cback(UINT16 lcid, BT_HDR *p_buf)
+{
+    tGATT_TCB       *p_tcb;
+
+    /* look up clcb for this channel */
+    if ((p_tcb = gatt_find_tcb_by_cid(lcid)) != NULL &&
+        gatt_get_ch_state(p_tcb) == GATT_CH_OPEN)
+    {
+        /* process the data */
+        gatt_data_process(p_tcb, p_buf);
+    }
+    else /* prevent buffer leak */
+        osi_free(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         gatt_l2cif_congest_cback
+**
+** Description      L2CAP congestion callback
+**
+** Returns          void
+**
+*******************************************************************************/
+static void gatt_l2cif_congest_cback (UINT16 lcid, BOOLEAN congested)
+{
+    tGATT_TCB *p_tcb = gatt_find_tcb_by_cid(lcid);
+
+    if (p_tcb != NULL)
+    {
+        gatt_channel_congestion(p_tcb, congested);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         gatt_send_conn_cback
+**
+** Description      Callback used to notify layer above about a connection.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void gatt_send_conn_cback(tGATT_TCB *p_tcb)
+{
+    UINT8               i;
+    tGATT_REG           *p_reg;
+    tGATT_BG_CONN_DEV   *p_bg_dev=NULL;
+    UINT16              conn_id;
+
+    p_bg_dev = gatt_find_bg_dev(p_tcb->peer_bda);
+
+    /* notifying all applications for the connection up event */
+    for (i = 0,  p_reg = gatt_cb.cl_rcb ; i < GATT_MAX_APPS; i++, p_reg++)
+    {
+        if (p_reg->in_use)
+        {
+            if (p_bg_dev && gatt_is_bg_dev_for_app(p_bg_dev, p_reg->gatt_if))
+                gatt_update_app_use_link_flag(p_reg->gatt_if, p_tcb, TRUE, TRUE);
+
+            if (p_reg->app_cb.p_conn_cb)
+            {
+                conn_id = GATT_CREATE_CONN_ID(p_tcb->tcb_idx, p_reg->gatt_if);
+                (*p_reg->app_cb.p_conn_cb)(p_reg->gatt_if, p_tcb->peer_bda, conn_id,
+                                          TRUE, 0, p_tcb->transport);
+            }
+        }
+    }
+
+
+    if (gatt_num_apps_hold_link(p_tcb) &&  p_tcb->att_lcid == L2CAP_ATT_CID )
+    {
+        /* disable idle timeout if one or more clients are holding the link disable the idle timer */
+        GATT_SetIdleTimeout(p_tcb->peer_bda, GATT_LINK_NO_IDLE_TIMEOUT, p_tcb->transport);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         gatt_le_data_ind
+**
+** Description      This function is called when data is received from L2CAP.
+**                  if we are the originator of the connection, we are the ATT
+**                  client, and the received message is queued up for the client.
+**
+**                  If we are the destination of the connection, we are the ATT
+**                  server, so the message is passed to the server processing
+**                  function.
+**
+** Returns          void
+**
+*******************************************************************************/
+void gatt_data_process (tGATT_TCB *p_tcb, BT_HDR *p_buf)
+{
+    UINT8   *p = (UINT8 *)(p_buf + 1) + p_buf->offset;
+    UINT8   op_code, pseudo_op_code;
+    UINT16  msg_len;
+
+
+    if (p_buf->len > 0)
+    {
+        msg_len = p_buf->len - 1;
+        STREAM_TO_UINT8(op_code, p);
+
+        /* remove the two MSBs associated with sign write and write cmd */
+        pseudo_op_code = op_code & (~GATT_WRITE_CMD_MASK);
+
+        if (pseudo_op_code < GATT_OP_CODE_MAX)
+        {
+            if (op_code == GATT_SIGN_CMD_WRITE)
+            {
+                gatt_verify_signature(p_tcb, p_buf);
+            }
+            else
+            {
+                /* message from client */
+                if ((op_code % 2) == 0)
+                    gatt_server_handle_client_req (p_tcb, op_code, msg_len, p);
+                else
+                    gatt_client_handle_server_rsp (p_tcb, op_code, msg_len, p);
+            }
+        }
+        else
+        {
+            GATT_TRACE_ERROR ("ATT - Rcvd L2CAP data, unknown cmd: 0x%x", op_code);
+        }
+    }
+    else
+    {
+        GATT_TRACE_ERROR ("invalid data length, ignore");
+    }
+
+    osi_free(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         gatt_add_a_bonded_dev_for_srv_chg
+**
+** Description      Add a bonded dev to the service changed client list
+**
+** Returns          void
+**
+*******************************************************************************/
+void gatt_add_a_bonded_dev_for_srv_chg (BD_ADDR bda)
+{
+    tGATTS_SRV_CHG_REQ req;
+    tGATTS_SRV_CHG srv_chg_clt;
+
+    memcpy(srv_chg_clt.bda, bda, BD_ADDR_LEN);
+    srv_chg_clt.srv_changed = FALSE;
+    if (gatt_add_srv_chg_clt(&srv_chg_clt) != NULL)
+    {
+        memcpy(req.srv_chg.bda, bda, BD_ADDR_LEN);
+        req.srv_chg.srv_changed = FALSE;
+        if (gatt_cb.cb_info.p_srv_chg_callback)
+            (*gatt_cb.cb_info.p_srv_chg_callback)(GATTS_SRV_CHG_CMD_ADD_CLIENT, &req, NULL);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         gatt_send_srv_chg_ind
+**
+** Description      This function is called to send a service chnaged indication to
+**                  the specified bd address
+**
+** Returns          void
+**
+*******************************************************************************/
+void gatt_send_srv_chg_ind (BD_ADDR peer_bda)
+{
+    UINT8   handle_range[GATT_SIZE_OF_SRV_CHG_HNDL_RANGE];
+    UINT8   *p = handle_range;
+    UINT16  conn_id;
+
+    GATT_TRACE_DEBUG("gatt_send_srv_chg_ind");
+
+    if (gatt_cb.handle_of_h_r)
+    {
+        if ((conn_id = gatt_profile_find_conn_id_by_bd_addr(peer_bda)) != GATT_INVALID_CONN_ID)
+        {
+            UINT16_TO_STREAM (p, 1);
+            UINT16_TO_STREAM (p, 0xFFFF);
+            GATTS_HandleValueIndication (conn_id,
+                                         gatt_cb.handle_of_h_r,
+                                         GATT_SIZE_OF_SRV_CHG_HNDL_RANGE,
+                                         handle_range);
+        }
+        else
+        {
+            GATT_TRACE_ERROR("Unable to find conn_id for  %08x%04x ",
+                              (peer_bda[0]<<24)+(peer_bda[1]<<16)+(peer_bda[2]<<8)+peer_bda[3],
+                              (peer_bda[4]<<8)+peer_bda[5] );
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         gatt_chk_srv_chg
+**
+** Description      Check sending service chnaged Indication is required or not
+**                  if required then send the Indication
+**
+** Returns          void
+**
+*******************************************************************************/
+void gatt_chk_srv_chg(tGATTS_SRV_CHG *p_srv_chg_clt)
+{
+    GATT_TRACE_DEBUG("gatt_chk_srv_chg srv_changed=%d", p_srv_chg_clt->srv_changed );
+
+    if (p_srv_chg_clt->srv_changed)
+    {
+        gatt_send_srv_chg_ind(p_srv_chg_clt->bda);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         gatt_init_srv_chg
+**
+** Description      This function is used to initialize the service changed
+**                  attribute value
+**
+** Returns          void
+**
+*******************************************************************************/
+void gatt_init_srv_chg (void)
+{
+    tGATTS_SRV_CHG_REQ req;
+    tGATTS_SRV_CHG_RSP rsp;
+    BOOLEAN status;
+    UINT8 num_clients,i;
+    tGATTS_SRV_CHG  srv_chg_clt;
+
+    GATT_TRACE_DEBUG("gatt_init_srv_chg");
+    if (gatt_cb.cb_info.p_srv_chg_callback)
+    {
+        status = (*gatt_cb.cb_info.p_srv_chg_callback)(GATTS_SRV_CHG_CMD_READ_NUM_CLENTS, NULL, &rsp);
+
+        if (status && rsp.num_clients)
+        {
+            GATT_TRACE_DEBUG("gatt_init_srv_chg num_srv_chg_clt_clients=%d", rsp.num_clients);
+            num_clients = rsp.num_clients;
+            i = 1; /* use one based index */
+            while ((i <= num_clients) && status)
+            {
+                req.client_read_index = i;
+                if ((status = (*gatt_cb.cb_info.p_srv_chg_callback)(GATTS_SRV_CHG_CMD_READ_CLENT, &req, &rsp)) == TRUE)
+                {
+                    memcpy(&srv_chg_clt, &rsp.srv_chg ,sizeof(tGATTS_SRV_CHG));
+                    if (gatt_add_srv_chg_clt(&srv_chg_clt) == NULL)
+                    {
+                        GATT_TRACE_ERROR("Unable to add a service change client");
+                        status = FALSE;
+                    }
+                }
+                i++;
+            }
+        }
+    }
+    else
+    {
+        GATT_TRACE_DEBUG("gatt_init_srv_chg callback not registered yet");
+    }
+}
+
+/*******************************************************************************
+**
+** Function         gatt_proc_srv_chg
+**
+** Description      This function is process the service changed request
+**
+** Returns          void
+**
+*******************************************************************************/
+void gatt_proc_srv_chg (void)
+{
+    UINT8               start_idx, found_idx;
+    BD_ADDR             bda;
+    BOOLEAN             srv_chg_ind_pending=FALSE;
+    tGATT_TCB           *p_tcb;
+    tBT_TRANSPORT      transport;
+
+    GATT_TRACE_DEBUG ("gatt_proc_srv_chg");
+
+    if (gatt_cb.cb_info.p_srv_chg_callback && gatt_cb.handle_of_h_r)
+    {
+        gatt_set_srv_chg();
+        start_idx =0;
+        while (gatt_find_the_connected_bda(start_idx, bda, &found_idx, &transport))
+        {
+            p_tcb = &gatt_cb.tcb[found_idx];;
+            srv_chg_ind_pending  = gatt_is_srv_chg_ind_pending(p_tcb);
+
+            if (!srv_chg_ind_pending)
+            {
+                gatt_send_srv_chg_ind(bda);
+            }
+            else
+            {
+                GATT_TRACE_DEBUG ("discard srv chg - already has one in the queue");
+            }
+            start_idx = ++found_idx;
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         gatt_set_ch_state
+**
+** Description      This function set the ch_state in tcb
+**
+** Returns          none
+**
+*******************************************************************************/
+void gatt_set_ch_state(tGATT_TCB *p_tcb, tGATT_CH_STATE ch_state)
+{
+    if (p_tcb)
+    {
+        GATT_TRACE_DEBUG ("gatt_set_ch_state: old=%d new=%d", p_tcb->ch_state, ch_state);
+        p_tcb->ch_state = ch_state;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         gatt_get_ch_state
+**
+** Description      This function get the ch_state in tcb
+**
+** Returns          none
+**
+*******************************************************************************/
+tGATT_CH_STATE gatt_get_ch_state(tGATT_TCB *p_tcb)
+{
+    tGATT_CH_STATE ch_state = GATT_CH_CLOSE;
+    if (p_tcb)
+    {
+        GATT_TRACE_DEBUG ("gatt_get_ch_state: ch_state=%d", p_tcb->ch_state);
+        ch_state = p_tcb->ch_state;
+    }
+    return ch_state;
+}
+
+#endif /* BLE_INCLUDED */
diff --git a/rtkbt/code/bt/stack/gatt/gatt_sr.c b/rtkbt/code/bt/stack/gatt/gatt_sr.c
new file mode 100755
index 0000000..f5c5f0f
--- /dev/null
+++ b/rtkbt/code/bt/stack/gatt/gatt_sr.c
@@ -0,0 +1,1472 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2008-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  this file contains the GATT server functions
+ *
+ ******************************************************************************/
+
+#include "bt_target.h"
+#include "bt_utils.h"
+
+#if BLE_INCLUDED == TRUE
+#include <string.h>
+#include "gatt_int.h"
+#include "l2c_api.h"
+#include "l2c_int.h"
+#define GATT_MTU_REQ_MIN_LEN        2
+
+
+/*******************************************************************************
+**
+** Function         gatt_sr_enqueue_cmd
+**
+** Description      This function enqueue the request from client which needs a
+**                  application response, and update the transaction ID.
+**
+** Returns          void
+**
+*******************************************************************************/
+UINT32 gatt_sr_enqueue_cmd (tGATT_TCB *p_tcb, UINT8 op_code, UINT16 handle)
+{
+    tGATT_SR_CMD   *p_cmd = &p_tcb->sr_cmd;
+    UINT32          trans_id = 0;
+
+    if ( (p_cmd->op_code == 0) ||
+         (op_code == GATT_HANDLE_VALUE_CONF)) /* no pending request */
+    {
+        if (op_code == GATT_CMD_WRITE ||
+            op_code == GATT_SIGN_CMD_WRITE  ||
+            op_code == GATT_REQ_MTU ||
+            op_code == GATT_HANDLE_VALUE_CONF)
+        {
+            trans_id = ++p_tcb->trans_id;
+        }
+        else
+        {
+            p_cmd->trans_id   = ++p_tcb->trans_id;
+            p_cmd->op_code    = op_code;
+            p_cmd->handle     = handle;
+            p_cmd->status     = GATT_NOT_FOUND;
+            p_tcb->trans_id %= GATT_TRANS_ID_MAX;
+            trans_id = p_cmd->trans_id;
+        }
+    }
+
+    return trans_id;
+}
+
+/*******************************************************************************
+**
+** Function         gatt_sr_cmd_empty
+**
+** Description      This function check the server command queue is empty or not.
+**
+** Returns          TRUE if empty, FALSE if there is pending command.
+**
+*******************************************************************************/
+BOOLEAN gatt_sr_cmd_empty (tGATT_TCB *p_tcb)
+{
+    return(p_tcb->sr_cmd.op_code == 0);
+}
+
+/*******************************************************************************
+**
+** Function         gatt_dequeue_sr_cmd
+**
+** Description      This function dequeue the request from command queue.
+**
+** Returns          void
+**
+*******************************************************************************/
+void gatt_dequeue_sr_cmd (tGATT_TCB *p_tcb)
+{
+    /* Double check in case any buffers are queued */
+    GATT_TRACE_DEBUG("gatt_dequeue_sr_cmd" );
+    if (p_tcb->sr_cmd.p_rsp_msg)
+        GATT_TRACE_ERROR("free p_tcb->sr_cmd.p_rsp_msg = %d", p_tcb->sr_cmd.p_rsp_msg);
+    osi_free_and_reset((void **)&p_tcb->sr_cmd.p_rsp_msg);
+
+    while (!fixed_queue_is_empty(p_tcb->sr_cmd.multi_rsp_q))
+        osi_free(fixed_queue_try_dequeue(p_tcb->sr_cmd.multi_rsp_q));
+    fixed_queue_free(p_tcb->sr_cmd.multi_rsp_q, NULL);
+    memset( &p_tcb->sr_cmd, 0, sizeof(tGATT_SR_CMD));
+}
+
+/*******************************************************************************
+**
+** Function         process_read_multi_rsp
+**
+** Description      This function check the read multiple response.
+**
+** Returns          BOOLEAN if all replies have been received
+**
+*******************************************************************************/
+static BOOLEAN process_read_multi_rsp (tGATT_SR_CMD *p_cmd, tGATT_STATUS status,
+                                       tGATTS_RSP *p_msg, UINT16 mtu)
+{
+    UINT16          ii, total_len, len;
+    BT_HDR          *p_buf = (BT_HDR *)osi_malloc(sizeof(tGATTS_RSP));
+    UINT8           *p;
+    BOOLEAN         is_overflow = FALSE;
+
+    GATT_TRACE_DEBUG ("process_read_multi_rsp status=%d mtu=%d", status, mtu);
+
+    /* Enqueue the response */
+    memcpy((void *)p_buf, (const void *)p_msg, sizeof(tGATTS_RSP));
+    fixed_queue_enqueue(p_cmd->multi_rsp_q, p_buf);
+
+    p_cmd->status = status;
+    if (status == GATT_SUCCESS)
+    {
+        GATT_TRACE_DEBUG("Multi read count=%d num_hdls=%d",
+                         fixed_queue_length(p_cmd->multi_rsp_q),
+                         p_cmd->multi_req.num_handles);
+        /* Wait till we get all the responses */
+        if (fixed_queue_length(p_cmd->multi_rsp_q) == p_cmd->multi_req.num_handles)
+        {
+            len = sizeof(BT_HDR) + L2CAP_MIN_OFFSET + mtu;
+            p_buf = (BT_HDR *)osi_calloc(len);
+            p_buf->offset = L2CAP_MIN_OFFSET;
+            p = (UINT8 *)(p_buf + 1) + p_buf->offset;
+
+            /* First byte in the response is the opcode */
+            *p++ = GATT_RSP_READ_MULTI;
+            p_buf->len = 1;
+
+            /* Now walk through the buffers puting the data into the response in order */
+            list_t *list = NULL;
+            const list_node_t *node = NULL;
+            if (! fixed_queue_is_empty(p_cmd->multi_rsp_q))
+                list = fixed_queue_get_list(p_cmd->multi_rsp_q);
+            for (ii = 0; ii < p_cmd->multi_req.num_handles; ii++)
+            {
+                tGATTS_RSP *p_rsp = NULL;
+
+                if (list != NULL) {
+                    if (ii == 0)
+                        node = list_begin(list);
+                    else
+                        node = list_next(node);
+                    if (node != list_end(list))
+                        p_rsp = (tGATTS_RSP *)list_node(node);
+                }
+
+                if (p_rsp != NULL)
+                {
+
+                    total_len = (p_buf->len + p_rsp->attr_value.len);
+
+                    if (total_len >  mtu)
+                    {
+                        /* just send the partial response for the overflow case */
+                        len = p_rsp->attr_value.len - (total_len - mtu);
+                        is_overflow = TRUE;
+                        GATT_TRACE_DEBUG ("multi read overflow available len=%d val_len=%d", len, p_rsp->attr_value.len );
+                    }
+                    else
+                    {
+                        len = p_rsp->attr_value.len;
+                    }
+
+                    if (p_rsp->attr_value.handle == p_cmd->multi_req.handles[ii])
+                    {
+                        memcpy (p, p_rsp->attr_value.value, len);
+                        if (!is_overflow)
+                            p += len;
+                        p_buf->len += len;
+                    }
+                    else
+                    {
+                        p_cmd->status        = GATT_NOT_FOUND;
+                        break;
+                    }
+
+                    if (is_overflow)
+                        break;
+
+                }
+                else
+                {
+                    p_cmd->status        = GATT_NOT_FOUND;
+                    break;
+                }
+
+            } /* loop through all handles*/
+
+
+            /* Sanity check on the buffer length */
+            if (p_buf->len == 0)
+            {
+                GATT_TRACE_ERROR("process_read_multi_rsp - nothing found!!");
+                p_cmd->status = GATT_NOT_FOUND;
+                osi_free(p_buf);
+                GATT_TRACE_DEBUG("osi_free(p_buf)");
+            }
+            else if (p_cmd->p_rsp_msg != NULL)
+            {
+                osi_free(p_buf);
+            }
+            else
+            {
+                p_cmd->p_rsp_msg = p_buf;
+            }
+
+            return(TRUE);
+        }
+    }
+    else    /* any handle read exception occurs, return error */
+    {
+        return(TRUE);
+    }
+
+    /* If here, still waiting */
+    return(FALSE);
+}
+
+/*******************************************************************************
+**
+** Function         gatt_sr_process_app_rsp
+**
+** Description      This function checks whether the response message from application
+**                  match any pending request or not.
+**
+** Returns          void
+**
+*******************************************************************************/
+tGATT_STATUS gatt_sr_process_app_rsp (tGATT_TCB *p_tcb, tGATT_IF gatt_if,
+                                      UINT32 trans_id, UINT8 op_code,
+                                      tGATT_STATUS status, tGATTS_RSP *p_msg)
+{
+    tGATT_STATUS    ret_code = GATT_SUCCESS;
+    UNUSED(trans_id);
+
+    GATT_TRACE_DEBUG("gatt_sr_process_app_rsp gatt_if=%d", gatt_if);
+
+    gatt_sr_update_cback_cnt(p_tcb, gatt_if, FALSE, FALSE);
+
+    if (op_code == GATT_REQ_READ_MULTI)
+    {
+        /* If no error and still waiting, just return */
+        if (!process_read_multi_rsp (&p_tcb->sr_cmd, status, p_msg, p_tcb->payload_size))
+            return(GATT_SUCCESS);
+    }
+    else
+    {
+        if (op_code == GATT_REQ_PREPARE_WRITE && status == GATT_SUCCESS)
+            gatt_sr_update_prep_cnt(p_tcb, gatt_if, TRUE, FALSE);
+
+        if (op_code == GATT_REQ_EXEC_WRITE && status != GATT_SUCCESS)
+            gatt_sr_reset_cback_cnt(p_tcb);
+
+        p_tcb->sr_cmd.status = status;
+
+        if (gatt_sr_is_cback_cnt_zero(p_tcb)
+            && status == GATT_SUCCESS)
+        {
+            if (p_tcb->sr_cmd.p_rsp_msg == NULL)
+            {
+                p_tcb->sr_cmd.p_rsp_msg = attp_build_sr_msg (p_tcb, (UINT8)(op_code + 1), (tGATT_SR_MSG *)p_msg);
+            }
+            else
+            {
+                GATT_TRACE_ERROR("Exception!!! already has respond message");
+            }
+        }
+    }
+    if (gatt_sr_is_cback_cnt_zero(p_tcb))
+    {
+        if ( (p_tcb->sr_cmd.status == GATT_SUCCESS) && (p_tcb->sr_cmd.p_rsp_msg) )
+        {
+            ret_code = attp_send_sr_msg (p_tcb, p_tcb->sr_cmd.p_rsp_msg);
+            p_tcb->sr_cmd.p_rsp_msg = NULL;
+        }
+        else
+        {
+            ret_code = gatt_send_error_rsp (p_tcb, status, op_code, p_tcb->sr_cmd.handle, FALSE);
+        }
+
+        gatt_dequeue_sr_cmd(p_tcb);
+    }
+
+    GATT_TRACE_DEBUG("gatt_sr_process_app_rsp ret_code=%d", ret_code);
+
+    return ret_code;
+}
+
+/*******************************************************************************
+**
+** Function         gatt_process_exec_write_req
+**
+** Description      This function is called to process the execute write request
+**                  from client.
+**
+** Returns          void
+**
+*******************************************************************************/
+void gatt_process_exec_write_req (tGATT_TCB *p_tcb, UINT8 op_code, UINT16 len, UINT8 *p_data)
+{
+    UINT8   *p = p_data, flag, i = 0;
+    UINT32  trans_id = 0;
+    tGATT_IF gatt_if;
+    UINT16  conn_id;
+
+    UNUSED(len);
+
+#if GATT_CONFORMANCE_TESTING == TRUE
+    if (gatt_cb.enable_err_rsp && gatt_cb.req_op_code == op_code)
+    {
+        GATT_TRACE_DEBUG("Conformance tst: forced err rspv for Execute Write: error status=%d",
+        gatt_cb.err_status);
+
+        gatt_send_error_rsp (p_tcb, gatt_cb.err_status, gatt_cb.req_op_code, gatt_cb.handle, FALSE);
+
+        return;
+    }
+#endif
+
+    STREAM_TO_UINT8(flag, p);
+
+    /* mask the flag */
+    flag &= GATT_PREP_WRITE_EXEC;
+
+
+    /* no prep write is queued */
+    if (!gatt_sr_is_prep_cnt_zero(p_tcb))
+    {
+        trans_id = gatt_sr_enqueue_cmd(p_tcb, op_code, 0);
+        gatt_sr_copy_prep_cnt_to_cback_cnt(p_tcb);
+
+        for (i=0; i<GATT_MAX_APPS; i++)
+        {
+            if (p_tcb->prep_cnt[i])
+            {
+                gatt_if = (tGATT_IF) (i+1);
+                conn_id = GATT_CREATE_CONN_ID(p_tcb->tcb_idx, gatt_if);
+                gatt_sr_send_req_callback(conn_id,
+                                          trans_id,
+                                          GATTS_REQ_TYPE_WRITE_EXEC,
+                                          (tGATTS_DATA *)&flag);
+                p_tcb->prep_cnt[i]= 0;
+            }
+        }
+    }
+    else /* nothing needs to be executed , send response now */
+    {
+        GATT_TRACE_ERROR("gatt_process_exec_write_req: no prepare write pending");
+        gatt_send_error_rsp(p_tcb, GATT_ERROR, GATT_REQ_EXEC_WRITE, 0, FALSE);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         gatt_process_read_multi_req
+**
+** Description      This function is called to process the read multiple request
+**                  from client.
+**
+** Returns          void
+**
+*******************************************************************************/
+void gatt_process_read_multi_req (tGATT_TCB *p_tcb, UINT8 op_code, UINT16 len, UINT8 *p_data)
+{
+    UINT32          trans_id;
+    UINT16          handle = 0, ll = len;
+    UINT8           *p = p_data, i_rcb;
+    tGATT_STATUS    err = GATT_SUCCESS;
+    UINT8           sec_flag, key_size;
+
+    GATT_TRACE_DEBUG("gatt_process_read_multi_req" );
+    p_tcb->sr_cmd.multi_req.num_handles = 0;
+
+    gatt_sr_get_sec_info(p_tcb->peer_bda,
+                         p_tcb->transport,
+                         &sec_flag,
+                         &key_size);
+
+#if GATT_CONFORMANCE_TESTING == TRUE
+    if (gatt_cb.enable_err_rsp && gatt_cb.req_op_code == op_code)
+    {
+        GATT_TRACE_DEBUG("Conformance tst: forced err rspvofr ReadMultiple: error status=%d", gatt_cb.err_status);
+
+        STREAM_TO_UINT16(handle, p);
+
+        gatt_send_error_rsp (p_tcb, gatt_cb.err_status, gatt_cb.req_op_code, handle, FALSE);
+
+        return;
+    }
+#endif
+
+    while (ll >= 2 && p_tcb->sr_cmd.multi_req.num_handles < GATT_MAX_READ_MULTI_HANDLES)
+    {
+        STREAM_TO_UINT16(handle, p);
+
+        if ((i_rcb = gatt_sr_find_i_rcb_by_handle(handle)) < GATT_MAX_SR_PROFILES)
+        {
+            p_tcb->sr_cmd.multi_req.handles[p_tcb->sr_cmd.multi_req.num_handles++] = handle;
+
+            /* check read permission */
+            if ((err = gatts_read_attr_perm_check(   gatt_cb.sr_reg[i_rcb].p_db,
+                                                     FALSE,
+                                                     handle,
+                                                     sec_flag,
+                                                     key_size))
+                != GATT_SUCCESS)
+            {
+                GATT_TRACE_DEBUG("read permission denied : 0x%02x", err);
+                break;
+            }
+        }
+        else
+        {
+            /* invalid handle */
+            err = GATT_INVALID_HANDLE;
+            break;
+        }
+        ll -= 2;
+    }
+
+    if (ll != 0)
+    {
+        GATT_TRACE_ERROR("max attribute handle reached in ReadMultiple Request.");
+    }
+
+    if (p_tcb->sr_cmd.multi_req.num_handles == 0)
+        err = GATT_INVALID_HANDLE;
+
+    if (err == GATT_SUCCESS)
+    {
+        if ((trans_id = gatt_sr_enqueue_cmd (p_tcb, op_code, p_tcb->sr_cmd.multi_req.handles[0])) != 0)
+        {
+            gatt_sr_reset_cback_cnt(p_tcb); /* read multiple use multi_rsp_q's count*/
+
+            for (ll = 0; ll < p_tcb->sr_cmd.multi_req.num_handles; ll ++) {
+                tGATTS_RSP *p_msg = (tGATTS_RSP *)osi_calloc(sizeof(tGATTS_RSP));
+                handle = p_tcb->sr_cmd.multi_req.handles[ll];
+                i_rcb = gatt_sr_find_i_rcb_by_handle(handle);
+
+                p_msg->attr_value.handle = handle;
+                err = gatts_read_attr_value_by_handle(p_tcb,
+                                                      gatt_cb.sr_reg[i_rcb].p_db,
+                                                      op_code,
+                                                      handle,
+                                                      0,
+                                                      p_msg->attr_value.value,
+                                                      &p_msg->attr_value.len,
+                                                      GATT_MAX_ATTR_LEN,
+                                                      sec_flag,
+                                                      key_size,
+                                                      trans_id);
+
+                if (err == GATT_SUCCESS) {
+                    gatt_sr_process_app_rsp(p_tcb, gatt_cb.sr_reg[i_rcb].gatt_if ,trans_id, op_code, GATT_SUCCESS, p_msg);
+                }
+                /* either not using or done using the buffer, release it now */
+                osi_free(p_msg);
+            }
+        }
+        else
+            err = GATT_NO_RESOURCES;
+    }
+
+    /* in theroy BUSY is not possible(should already been checked), protected check */
+    if (err != GATT_SUCCESS && err != GATT_PENDING && err != GATT_BUSY)
+        gatt_send_error_rsp(p_tcb, err, op_code, handle, FALSE);
+}
+
+/*******************************************************************************
+**
+** Function         gatt_build_primary_service_rsp
+**
+** Description      Primamry service request processed internally. Theretically
+**                  only deal with ReadByTypeVAlue and ReadByGroupType.
+**
+** Returns          void
+**
+*******************************************************************************/
+static tGATT_STATUS gatt_build_primary_service_rsp (BT_HDR *p_msg, tGATT_TCB *p_tcb,
+                                                    UINT8 op_code, UINT16 s_hdl,
+                                                    UINT16 e_hdl, UINT8 *p_data, tBT_UUID value)
+{
+    tGATT_STATUS    status = GATT_NOT_FOUND;
+    UINT8           handle_len =4, *p ;
+    tGATT_SR_REG    *p_rcb;
+    tGATT_SRV_LIST_INFO *p_list= &gatt_cb.srv_list_info;
+    tGATT_SRV_LIST_ELEM  *p_srv=NULL;
+    tBT_UUID       *p_uuid;
+
+    UNUSED(p_data);
+
+    p = (UINT8 *)(p_msg + 1) + L2CAP_MIN_OFFSET;
+
+    p_srv = p_list->p_first;
+
+    while (p_srv)
+    {
+        p_rcb = GATT_GET_SR_REG_PTR(p_srv->i_sreg);
+
+        if (p_rcb->in_use &&
+            p_rcb->s_hdl >= s_hdl &&
+            p_rcb->s_hdl <= e_hdl &&
+            p_rcb->type == GATT_UUID_PRI_SERVICE)
+        {
+            if ((p_uuid = gatts_get_service_uuid (p_rcb->p_db)) != NULL)
+            {
+                if (op_code == GATT_REQ_READ_BY_GRP_TYPE)
+                    handle_len = 4 + p_uuid->len;
+
+                /* get the length byte in the repsonse */
+                if (p_msg->offset ==0)
+                {
+                    *p ++ = op_code + 1;
+                    p_msg->len ++;
+                    p_msg->offset = handle_len;
+
+                    if (op_code == GATT_REQ_READ_BY_GRP_TYPE)
+                    {
+                        *p ++ =  (UINT8)p_msg->offset; /* length byte */
+                        p_msg->len ++;
+                    }
+                }
+
+                if (p_msg->len + p_msg->offset <= p_tcb->payload_size &&
+                    handle_len == p_msg->offset)
+                {
+                    if (op_code != GATT_REQ_FIND_TYPE_VALUE ||
+                        gatt_uuid_compare(value, *p_uuid))
+                    {
+                        UINT16_TO_STREAM(p, p_rcb->s_hdl);
+
+                        if (p_list->p_last_primary == p_srv &&
+                            p_list->p_last_primary == p_list->p_last)
+                        {
+                            GATT_TRACE_DEBUG("Use 0xFFFF for the last primary attribute");
+                            UINT16_TO_STREAM(p, 0xFFFF); /* see GATT ERRATA 4065, 4063, ATT ERRATA 4062 */
+                        }
+                        else
+                        {
+                            UINT16_TO_STREAM(p, p_rcb->e_hdl);
+                        }
+
+                        if (op_code == GATT_REQ_READ_BY_GRP_TYPE)
+                            gatt_build_uuid_to_stream(&p, *p_uuid);
+
+                        status = GATT_SUCCESS;
+                        p_msg->len += p_msg->offset;
+                    }
+                }
+                else
+                    break;
+            }
+        }
+        p_srv = p_srv->p_next;
+    }
+    p_msg->offset = L2CAP_MIN_OFFSET;
+
+    return status;
+}
+
+/*******************************************************************************
+**
+** Function         gatt_build_find_info_rsp
+**
+** Description      fill the find information response information in the given
+**                  buffer.
+**
+** Returns          TRUE: if data filled sucessfully.
+**                  FALSE: packet full, or format mismatch.
+**
+*******************************************************************************/
+static tGATT_STATUS gatt_build_find_info_rsp(tGATT_SR_REG *p_rcb, BT_HDR *p_msg, UINT16 *p_len,
+                                             UINT16 s_hdl, UINT16 e_hdl)
+{
+    tGATT_STATUS        status = GATT_NOT_FOUND;
+    UINT8               *p;
+    UINT16              len = *p_len;
+    tGATT_ATTR16        *p_attr = NULL;
+    UINT8               info_pair_len[2] = {4, 18};
+
+    if (!p_rcb->p_db || !p_rcb->p_db->p_attr_list)
+        return status;
+
+    /* check the attribute database */
+    p_attr = (tGATT_ATTR16 *) p_rcb->p_db->p_attr_list;
+
+    p = (UINT8 *)(p_msg + 1) + L2CAP_MIN_OFFSET + p_msg->len;
+
+    while (p_attr)
+    {
+        if (p_attr->handle > e_hdl)
+        {
+            break;
+        }
+
+        if (p_attr->handle >= s_hdl)
+        {
+            if (p_msg->offset == 0)
+                p_msg->offset = (p_attr->uuid_type == GATT_ATTR_UUID_TYPE_16) ? GATT_INFO_TYPE_PAIR_16 : GATT_INFO_TYPE_PAIR_128;
+
+            if (len >= info_pair_len[p_msg->offset - 1])
+            {
+                if (p_msg->offset == GATT_INFO_TYPE_PAIR_16 && p_attr->uuid_type == GATT_ATTR_UUID_TYPE_16)
+                {
+                    UINT16_TO_STREAM(p, p_attr->handle);
+                    UINT16_TO_STREAM(p, p_attr->uuid);
+                }
+                else if (p_msg->offset == GATT_INFO_TYPE_PAIR_128 && p_attr->uuid_type == GATT_ATTR_UUID_TYPE_128  )
+                {
+                    UINT16_TO_STREAM(p, p_attr->handle);
+                    ARRAY_TO_STREAM (p, ((tGATT_ATTR128 *) p_attr)->uuid, LEN_UUID_128);
+                }
+                else if (p_msg->offset == GATT_INFO_TYPE_PAIR_128 && p_attr->uuid_type == GATT_ATTR_UUID_TYPE_32)
+                {
+                    UINT16_TO_STREAM(p, p_attr->handle);
+                    gatt_convert_uuid32_to_uuid128(p, ((tGATT_ATTR32 *) p_attr)->uuid);
+                    p += LEN_UUID_128;
+                }
+                else
+                {
+                    GATT_TRACE_ERROR("format mismatch");
+                    status = GATT_NO_RESOURCES;
+                    break;
+                    /* format mismatch */
+                }
+                p_msg->len += info_pair_len[p_msg->offset - 1];
+                len -= info_pair_len[p_msg->offset - 1];
+                status = GATT_SUCCESS;
+
+            }
+            else
+            {
+                status = GATT_NO_RESOURCES;
+                break;
+            }
+        }
+        p_attr = (tGATT_ATTR16 *)p_attr->p_next;
+    }
+
+    *p_len = len;
+    return status;
+}
+
+/*******************************************************************************
+**
+** Function         gatts_internal_read_by_type_req
+**
+** Description      check to see if the ReadByType request can be handled internally.
+**
+** Returns          void
+**
+*******************************************************************************/
+static tGATT_STATUS gatts_validate_packet_format(UINT8 op_code, UINT16 *p_len,
+                                                 UINT8 **p_data, tBT_UUID *p_uuid_filter,
+                                                 UINT16 *p_s_hdl, UINT16 *p_e_hdl)
+{
+    tGATT_STATUS    reason = GATT_SUCCESS;
+    UINT16          uuid_len, s_hdl = 0, e_hdl = 0;
+    UINT16          len = *p_len;
+    UINT8           *p = *p_data;
+
+    if (len >= 4)
+    {
+        /* obtain starting handle, and ending handle */
+        STREAM_TO_UINT16(s_hdl, p);
+        STREAM_TO_UINT16(e_hdl, p);
+        len -= 4;
+
+        if (s_hdl > e_hdl || !GATT_HANDLE_IS_VALID(s_hdl) || !GATT_HANDLE_IS_VALID(e_hdl))
+        {
+            reason = GATT_INVALID_HANDLE;
+        }
+        /* for these PDUs, uuid filter must present */
+        else if (op_code == GATT_REQ_READ_BY_GRP_TYPE ||
+                 op_code == GATT_REQ_FIND_TYPE_VALUE ||
+                 op_code == GATT_REQ_READ_BY_TYPE)
+        {
+            if (len >= 2 && p_uuid_filter != NULL)
+            {
+                uuid_len = (op_code == GATT_REQ_FIND_TYPE_VALUE) ? 2 : len;
+
+                /* parse uuid now */
+                if (gatt_parse_uuid_from_cmd (p_uuid_filter, uuid_len, &p) == FALSE ||
+                    p_uuid_filter->len == 0)
+                {
+                    GATT_TRACE_DEBUG("UUID filter does not exsit");
+                    reason = GATT_INVALID_PDU;
+                }
+                else
+                    len -= p_uuid_filter->len;
+            }
+            else
+                reason = GATT_INVALID_PDU;
+        }
+    }
+    else
+        reason = GATT_INVALID_PDU;
+
+    *p_data     = p;
+    *p_len      = len;
+    *p_s_hdl    = s_hdl;
+    *p_e_hdl    = e_hdl;
+
+    return reason;
+}
+
+/*******************************************************************************
+**
+** Function         gatts_process_primary_service_req
+**
+** Description      process ReadByGroupType/ReadByTypeValue request, for discover
+**                  all primary services or discover primary service by UUID request.
+**
+** Returns          void
+**
+*******************************************************************************/
+void gatts_process_primary_service_req(tGATT_TCB *p_tcb, UINT8 op_code, UINT16 len, UINT8 *p_data)
+{
+    UINT8           reason = GATT_INVALID_PDU;
+    UINT16          s_hdl = 0, e_hdl = 0;
+    tBT_UUID        uuid, value, primary_service = {LEN_UUID_16, {GATT_UUID_PRI_SERVICE}};
+    BT_HDR          *p_msg = NULL;
+    UINT16          msg_len = (UINT16)(sizeof(BT_HDR) + p_tcb->payload_size + L2CAP_MIN_OFFSET);
+
+    memset (&value, 0, sizeof(tBT_UUID));
+    reason = gatts_validate_packet_format(op_code, &len, &p_data, &uuid, &s_hdl, &e_hdl);
+
+    if (reason == GATT_SUCCESS)
+    {
+        if (gatt_uuid_compare(uuid, primary_service))
+        {
+            if (op_code == GATT_REQ_FIND_TYPE_VALUE)
+            {
+                if (gatt_parse_uuid_from_cmd(&value, len, &p_data) == FALSE)
+                    reason = GATT_INVALID_PDU;
+            }
+
+            if (reason == GATT_SUCCESS) {
+                p_msg = (BT_HDR *)osi_calloc(msg_len);
+                reason = gatt_build_primary_service_rsp (p_msg, p_tcb, op_code,
+                                                         s_hdl, e_hdl, p_data,
+                                                         value);
+            }
+        }
+        else
+        {
+            if (op_code == GATT_REQ_READ_BY_GRP_TYPE)
+            {
+                reason = GATT_UNSUPPORT_GRP_TYPE;
+                GATT_TRACE_DEBUG("unexpected ReadByGrpType Group: 0x%04x", uuid.uu.uuid16);
+            }
+            else
+            {
+                /* we do not support ReadByTypeValue with any non-primamry_service type */
+                reason = GATT_NOT_FOUND;
+                GATT_TRACE_DEBUG("unexpected ReadByTypeValue type: 0x%04x", uuid.uu.uuid16);
+            }
+        }
+    }
+
+    if (reason != GATT_SUCCESS)
+    {
+        osi_free(p_msg);
+        gatt_send_error_rsp (p_tcb, reason, op_code, s_hdl, FALSE);
+    }
+    else
+        attp_send_sr_msg(p_tcb, p_msg);
+
+}
+
+/*******************************************************************************
+**
+** Function         gatts_process_find_info
+**
+** Description      process find information request, for discover character
+**                  descriptors.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void gatts_process_find_info(tGATT_TCB *p_tcb, UINT8 op_code, UINT16 len, UINT8 *p_data)
+{
+    UINT8           reason = GATT_INVALID_PDU, *p;
+    UINT16          s_hdl = 0, e_hdl = 0, buf_len;
+    BT_HDR          *p_msg = NULL;
+    tGATT_SR_REG    *p_rcb;
+    tGATT_SRV_LIST_INFO *p_list= &gatt_cb.srv_list_info;
+    tGATT_SRV_LIST_ELEM  *p_srv=NULL;
+
+    reason = gatts_validate_packet_format(op_code, &len, &p_data, NULL, &s_hdl, &e_hdl);
+
+    if (reason == GATT_SUCCESS)
+    {
+        buf_len = (UINT16)(sizeof(BT_HDR) + p_tcb->payload_size + L2CAP_MIN_OFFSET);
+
+        p_msg = (BT_HDR *)osi_calloc(buf_len);
+        reason = GATT_NOT_FOUND;
+
+        p = (UINT8 *)(p_msg + 1) + L2CAP_MIN_OFFSET;
+        *p ++ = op_code + 1;
+        p_msg->len = 2;
+
+        buf_len = p_tcb->payload_size - 2;
+
+        p_srv = p_list->p_first;
+
+        while (p_srv) {
+            p_rcb = GATT_GET_SR_REG_PTR(p_srv->i_sreg);
+
+            if (p_rcb->in_use && !(p_rcb->s_hdl > e_hdl ||
+                                   p_rcb->e_hdl < s_hdl)) {
+                reason = gatt_build_find_info_rsp(p_rcb, p_msg, &buf_len,
+                                                  s_hdl, e_hdl);
+                if (reason == GATT_NO_RESOURCES) {
+                    reason = GATT_SUCCESS;
+                    break;
+                }
+            }
+            p_srv = p_srv->p_next;
+        }
+        *p = (UINT8)p_msg->offset;
+
+        p_msg->offset = L2CAP_MIN_OFFSET;
+    }
+
+    if (reason != GATT_SUCCESS)
+    {
+        osi_free(p_msg);
+        gatt_send_error_rsp (p_tcb, reason, op_code, s_hdl, FALSE);
+    }
+    else
+        attp_send_sr_msg(p_tcb, p_msg);
+
+}
+
+/*******************************************************************************
+**
+** Function         gatts_process_mtu_req
+**
+** Description      This function is called to process excahnge MTU request.
+**                  Only used on LE.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void gatts_process_mtu_req (tGATT_TCB *p_tcb, UINT16 len, UINT8 *p_data)
+{
+    UINT16        mtu = 0;
+    UINT8         *p = p_data, i;
+    BT_HDR        *p_buf;
+    UINT16   conn_id;
+
+    /* BR/EDR conenction, send error response */
+    if (p_tcb->att_lcid != L2CAP_ATT_CID)
+    {
+        gatt_send_error_rsp (p_tcb, GATT_REQ_NOT_SUPPORTED, GATT_REQ_MTU, 0, FALSE);
+    }
+    else if (len < GATT_MTU_REQ_MIN_LEN)
+    {
+        GATT_TRACE_ERROR("invalid MTU request PDU received.");
+        gatt_send_error_rsp (p_tcb, GATT_INVALID_PDU, GATT_REQ_MTU, 0, FALSE);
+    }
+    else
+    {
+        STREAM_TO_UINT16 (mtu, p);
+        /* mtu must be greater than default MTU which is 23/48 */
+        if (mtu < GATT_DEF_BLE_MTU_SIZE)
+            p_tcb->payload_size = GATT_DEF_BLE_MTU_SIZE;
+        else if (mtu > GATT_MAX_MTU_SIZE)
+            p_tcb->payload_size = GATT_MAX_MTU_SIZE;
+        else
+            p_tcb->payload_size = mtu;
+
+        GATT_TRACE_ERROR("MTU request PDU with MTU size %d", p_tcb->payload_size);
+
+        l2cble_set_fixed_channel_tx_data_length(p_tcb->peer_bda, L2CAP_ATT_CID, p_tcb->payload_size);
+
+        if ((p_buf = attp_build_sr_msg(p_tcb, GATT_RSP_MTU, (tGATT_SR_MSG *) &p_tcb->payload_size)) != NULL)
+        {
+            attp_send_sr_msg (p_tcb, p_buf);
+
+            /* Notify all registered applicaiton with new MTU size. Us a transaction ID */
+            /* of 0, as no response is allowed from applcations                    */
+
+            for (i = 0; i < GATT_MAX_APPS; i ++)
+            {
+                if (gatt_cb.cl_rcb[i].in_use )
+                {
+                    conn_id = GATT_CREATE_CONN_ID(p_tcb->tcb_idx, gatt_cb.cl_rcb[i].gatt_if);
+                    gatt_sr_send_req_callback(conn_id, 0, GATTS_REQ_TYPE_MTU,
+                                              (tGATTS_DATA *)&p_tcb->payload_size);
+                }
+            }
+
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         gatts_process_read_by_type_req
+**
+** Description      process Read By type request.
+**                  This PDU can be used to perform:
+**                  - read characteristic value
+**                  - read characteristic descriptor value
+**                  - discover characteristic
+**                  - discover characteristic by UUID
+**                  - relationship discovery
+**
+** Returns          void
+**
+*******************************************************************************/
+void gatts_process_read_by_type_req(tGATT_TCB *p_tcb, UINT8 op_code, UINT16 len, UINT8 *p_data)
+{
+    tBT_UUID            uuid;
+    tGATT_SR_REG        *p_rcb;
+    size_t              msg_len = sizeof(BT_HDR) + p_tcb->payload_size + L2CAP_MIN_OFFSET;
+    UINT16              buf_len, s_hdl, e_hdl, err_hdl = 0;
+    BT_HDR              *p_msg = NULL;
+    tGATT_STATUS        reason, ret;
+    UINT8               *p;
+    UINT8               sec_flag, key_size;
+    tGATT_SRV_LIST_INFO *p_list= &gatt_cb.srv_list_info;
+    tGATT_SRV_LIST_ELEM  *p_srv=NULL;
+
+    reason = gatts_validate_packet_format(op_code, &len, &p_data, &uuid, &s_hdl, &e_hdl);
+
+#if GATT_CONFORMANCE_TESTING == TRUE
+    if (gatt_cb.enable_err_rsp && gatt_cb.req_op_code == op_code)
+    {
+        GATT_TRACE_DEBUG("Conformance tst: forced err rsp for ReadByType: error status=%d", gatt_cb.err_status);
+
+        gatt_send_error_rsp (p_tcb, gatt_cb.err_status, gatt_cb.req_op_code, s_hdl, FALSE);
+
+        return;
+    }
+#endif
+
+    if (reason == GATT_SUCCESS)
+    {
+        p_msg = (BT_HDR *)osi_calloc(msg_len);
+        p = (UINT8 *)(p_msg + 1) + L2CAP_MIN_OFFSET;
+
+        *p ++ = op_code + 1;
+        /* reserve length byte */
+        p_msg->len = 2;
+        buf_len = p_tcb->payload_size - 2;
+
+        reason = GATT_NOT_FOUND;
+
+        p_srv = p_list->p_first;
+
+        while (p_srv) {
+            p_rcb = GATT_GET_SR_REG_PTR(p_srv->i_sreg);
+
+            if (p_rcb->in_use && !(p_rcb->s_hdl > e_hdl ||
+                                   p_rcb->e_hdl < s_hdl)) {
+                gatt_sr_get_sec_info(p_tcb->peer_bda, p_tcb->transport,
+                                     &sec_flag, &key_size);
+
+                ret = gatts_db_read_attr_value_by_type(p_tcb,
+                                                       p_rcb->p_db,
+                                                       op_code,
+                                                       p_msg,
+                                                       s_hdl,
+                                                       e_hdl,
+                                                       uuid,
+                                                       &buf_len,
+                                                       sec_flag,
+                                                       key_size,
+                                                       0,
+                                                       &err_hdl);
+                if (ret != GATT_NOT_FOUND) {
+                    reason = ret;
+
+                    if (ret == GATT_NO_RESOURCES)
+                        reason = GATT_SUCCESS;
+                }
+                if (ret != GATT_SUCCESS && ret != GATT_NOT_FOUND) {
+                    s_hdl = err_hdl;
+                    break;
+                }
+            }
+            p_srv = p_srv->p_next;
+        }
+        *p = (UINT8)p_msg->offset;
+        p_msg->offset = L2CAP_MIN_OFFSET;
+    }
+    if (reason != GATT_SUCCESS)
+    {
+        osi_free(p_msg);
+
+        /* in theroy BUSY is not possible(should already been checked), protected check */
+        if (reason != GATT_PENDING && reason != GATT_BUSY)
+            gatt_send_error_rsp (p_tcb, reason, op_code, s_hdl, FALSE);
+    }
+    else
+        attp_send_sr_msg(p_tcb, p_msg);
+
+}
+
+/*******************************************************************************
+**
+** Function         gatts_process_write_req
+**
+** Description      This function is called to process the write request
+**                  from client.
+**
+** Returns          void
+**
+*******************************************************************************/
+void gatts_process_write_req (tGATT_TCB *p_tcb, UINT8 i_rcb, UINT16 handle,
+                              UINT8 op_code, UINT16 len, UINT8 *p_data)
+{
+    tGATTS_DATA     sr_data;
+    UINT32          trans_id;
+    tGATT_STATUS    status;
+    UINT8           sec_flag, key_size, *p = p_data;
+    tGATT_SR_REG    *p_sreg;
+    UINT16          conn_id;
+
+    memset(&sr_data, 0, sizeof(tGATTS_DATA));
+
+    switch (op_code)
+    {
+        case GATT_REQ_PREPARE_WRITE:
+            if (len < 2) {
+                GATT_TRACE_ERROR("%s: Prepare write request was invalid - missing offset, sending error response", __func__);
+                gatt_send_error_rsp(p_tcb, GATT_INVALID_PDU, op_code, handle, FALSE);
+                return;
+            }
+            sr_data.write_req.is_prep = TRUE;
+            STREAM_TO_UINT16(sr_data.write_req.offset, p);
+            len -= 2;
+            /* fall through */
+        case GATT_SIGN_CMD_WRITE:
+            if (op_code == GATT_SIGN_CMD_WRITE)
+            {
+                GATT_TRACE_DEBUG("Write CMD with data sigining" );
+                len -= GATT_AUTH_SIGN_LEN;
+            }
+            /* fall through */
+        case GATT_CMD_WRITE:
+        case GATT_REQ_WRITE:
+            if (op_code == GATT_REQ_WRITE || op_code == GATT_REQ_PREPARE_WRITE)
+                sr_data.write_req.need_rsp = TRUE;
+            sr_data.write_req.handle = handle;
+            sr_data.write_req.len = len;
+            if (len != 0 && p != NULL)
+            {
+                memcpy (sr_data.write_req.value, p, len);
+            }
+            break;
+    }
+
+    gatt_sr_get_sec_info(p_tcb->peer_bda,
+                         p_tcb->transport,
+                         &sec_flag,
+                         &key_size);
+
+    status = gatts_write_attr_perm_check (gatt_cb.sr_reg[i_rcb].p_db,
+                                          op_code,
+                                          handle,
+                                          sr_data.write_req.offset,
+                                          p,
+                                          len,
+                                          sec_flag,
+                                          key_size);
+
+    if (status == GATT_SUCCESS)
+    {
+        if ((trans_id = gatt_sr_enqueue_cmd(p_tcb, op_code, handle)) != 0)
+        {
+            p_sreg = &gatt_cb.sr_reg[i_rcb];
+            conn_id = GATT_CREATE_CONN_ID(p_tcb->tcb_idx, p_sreg->gatt_if);
+            gatt_sr_send_req_callback(conn_id,
+                                      trans_id,
+                                      GATTS_REQ_TYPE_WRITE,
+                                      &sr_data);
+
+            status = GATT_PENDING;
+        }
+        else
+        {
+            GATT_TRACE_ERROR("max pending command, send error");
+            status = GATT_BUSY; /* max pending command, application error */
+        }
+    }
+
+    /* in theroy BUSY is not possible(should already been checked), protected check */
+    if (status != GATT_PENDING && status != GATT_BUSY &&
+        (op_code == GATT_REQ_PREPARE_WRITE || op_code == GATT_REQ_WRITE))
+    {
+        gatt_send_error_rsp (p_tcb, status, op_code, handle, FALSE);
+    }
+    return;
+}
+
+/*******************************************************************************
+**
+** Function         gatts_process_read_req
+**
+** Description      This function is called to process the read request
+**                  from client.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void gatts_process_read_req(tGATT_TCB *p_tcb, tGATT_SR_REG *p_rcb, UINT8 op_code,
+                                   UINT16 handle, UINT16 len, UINT8 *p_data)
+{
+    size_t          buf_len = sizeof(BT_HDR) + p_tcb->payload_size + L2CAP_MIN_OFFSET;
+    tGATT_STATUS    reason;
+    UINT8           sec_flag, key_size, *p;
+    UINT16          offset = 0, value_len = 0;
+    BT_HDR          *p_msg = (BT_HDR *)osi_calloc(buf_len);
+
+    UNUSED(len);
+
+    if (op_code == GATT_REQ_READ_BLOB)
+        STREAM_TO_UINT16(offset, p_data);
+
+    p = (UINT8 *)(p_msg + 1) + L2CAP_MIN_OFFSET;
+    *p ++ = op_code + 1;
+    p_msg->len = 1;
+    buf_len = p_tcb->payload_size - 1;
+
+    gatt_sr_get_sec_info(p_tcb->peer_bda, p_tcb->transport, &sec_flag,
+                         &key_size);
+
+    reason = gatts_read_attr_value_by_handle(p_tcb,
+                                             p_rcb->p_db,
+                                             op_code,
+                                             handle,
+                                             offset,
+                                             p,
+                                             &value_len,
+                                             (uint16_t)buf_len,
+                                             sec_flag,
+                                             key_size,
+                                             0);
+
+    p_msg->len += value_len;
+
+    if (reason != GATT_SUCCESS)
+    {
+        osi_free(p_msg);
+
+        /* in theroy BUSY is not possible(should already been checked), protected check */
+        if (reason != GATT_PENDING && reason != GATT_BUSY)
+            gatt_send_error_rsp (p_tcb, reason, op_code, handle, FALSE);
+    }
+    else
+        attp_send_sr_msg(p_tcb, p_msg);
+
+}
+
+/*******************************************************************************
+**
+** Function         gatts_process_attribute_req
+**
+** Description      This function is called to process the per attribute handle request
+**                  from client.
+**
+** Returns          void
+**
+*******************************************************************************/
+void gatts_process_attribute_req (tGATT_TCB *p_tcb, UINT8 op_code,
+                                  UINT16 len, UINT8 *p_data)
+{
+    UINT16          handle = 0;
+    UINT8           *p = p_data, i;
+    tGATT_SR_REG    *p_rcb = gatt_cb.sr_reg;
+    tGATT_STATUS    status = GATT_INVALID_HANDLE;
+    tGATT_ATTR16    *p_attr;
+
+    if (len < 2)
+    {
+        GATT_TRACE_ERROR("Illegal PDU length, discard request");
+        status = GATT_INVALID_PDU;
+    }
+    else
+    {
+        STREAM_TO_UINT16(handle, p);
+        len -= 2;
+    }
+
+#if GATT_CONFORMANCE_TESTING == TRUE
+    gatt_cb.handle = handle;
+    if (gatt_cb.enable_err_rsp && gatt_cb.req_op_code == op_code)
+    {
+        GATT_TRACE_DEBUG("Conformance tst: forced err rsp: error status=%d", gatt_cb.err_status);
+
+        gatt_send_error_rsp (p_tcb, gatt_cb.err_status, gatt_cb.req_op_code, handle, FALSE);
+
+        return;
+    }
+#endif
+
+    if (GATT_HANDLE_IS_VALID(handle))
+    {
+        for (i = 0; i < GATT_MAX_SR_PROFILES; i ++, p_rcb ++)
+        {
+            if (p_rcb->in_use && p_rcb->s_hdl <= handle && p_rcb->e_hdl >= handle)
+            {
+                p_attr = (tGATT_ATTR16 *)p_rcb->p_db->p_attr_list;
+
+                while (p_attr)
+                {
+                    if (p_attr->handle == handle)
+                    {
+                        switch (op_code)
+                        {
+                            case GATT_REQ_READ: /* read char/char descriptor value */
+                            case GATT_REQ_READ_BLOB:
+                                gatts_process_read_req(p_tcb, p_rcb, op_code, handle, len, p);
+                                break;
+
+                            case GATT_REQ_WRITE: /* write char/char descriptor value */
+                            case GATT_CMD_WRITE:
+                            case GATT_SIGN_CMD_WRITE:
+                            case GATT_REQ_PREPARE_WRITE:
+                                gatts_process_write_req(p_tcb, i, handle, op_code, len, p);
+                                break;
+                            default:
+                                break;
+                        }
+                        status = GATT_SUCCESS;
+                        break;
+                    }
+                    p_attr = (tGATT_ATTR16 *)p_attr->p_next;
+                }
+                break;
+            }
+        }
+    }
+
+    if (status != GATT_SUCCESS && op_code != GATT_CMD_WRITE && op_code != GATT_SIGN_CMD_WRITE)
+        gatt_send_error_rsp (p_tcb, status, op_code, handle, FALSE);
+}
+
+/*******************************************************************************
+**
+** Function         gatts_proc_srv_chg_ind_ack
+**
+** Description      This function process the service changed indicaiton ACK
+**
+** Returns          void
+**
+*******************************************************************************/
+static void gatts_proc_srv_chg_ind_ack(tGATT_TCB *p_tcb )
+{
+    tGATTS_SRV_CHG_REQ  req;
+    tGATTS_SRV_CHG      *p_buf = NULL;
+
+    GATT_TRACE_DEBUG("gatts_proc_srv_chg_ind_ack");
+
+    if ((p_buf = gatt_is_bda_in_the_srv_chg_clt_list(p_tcb->peer_bda)) != NULL)
+    {
+        GATT_TRACE_DEBUG("NV update set srv chg = FALSE");
+        p_buf->srv_changed = FALSE;
+        memcpy(&req.srv_chg, p_buf, sizeof(tGATTS_SRV_CHG));
+        if (gatt_cb.cb_info.p_srv_chg_callback)
+            (*gatt_cb.cb_info.p_srv_chg_callback)(GATTS_SRV_CHG_CMD_UPDATE_CLIENT,&req, NULL);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         gatts_chk_pending_ind
+**
+** Description      This function check any pending indication needs to be sent if
+**                  there is a pending indication then sent the indication
+**
+** Returns          void
+**
+*******************************************************************************/
+static void gatts_chk_pending_ind(tGATT_TCB *p_tcb )
+{
+    GATT_TRACE_DEBUG("%s", __func__);
+
+    tGATT_VALUE *p_buf = (tGATT_VALUE *)fixed_queue_try_peek_first(p_tcb->pending_ind_q);
+    if (p_buf != NULL)
+    {
+        GATTS_HandleValueIndication(p_buf->conn_id,
+                                    p_buf->handle,
+                                    p_buf->len,
+                                    p_buf->value);
+        osi_free(fixed_queue_try_remove_from_queue(p_tcb->pending_ind_q,
+                                                      p_buf));
+    }
+}
+
+/*******************************************************************************
+**
+** Function         gatts_proc_ind_ack
+**
+** Description      This function process the Indication ack
+**
+** Returns          TRUE continue to process the indication ack by the aaplication
+**                  if the ACk is not a Service Changed Indication Ack
+**
+*******************************************************************************/
+static BOOLEAN gatts_proc_ind_ack(tGATT_TCB *p_tcb, UINT16 ack_handle)
+{
+    BOOLEAN continue_processing = TRUE;
+
+    GATT_TRACE_DEBUG ("gatts_proc_ind_ack ack handle=%d", ack_handle);
+
+    if (ack_handle == gatt_cb.handle_of_h_r)
+    {
+        gatts_proc_srv_chg_ind_ack(p_tcb);
+        /* there is no need to inform the application since srv chg is handled internally by GATT */
+        continue_processing = FALSE;
+    }
+
+    gatts_chk_pending_ind(p_tcb);
+    return continue_processing;
+}
+
+/*******************************************************************************
+**
+** Function         gatts_process_value_conf
+**
+** Description      This function is called to process the handle value confirmation.
+**
+** Returns          void
+**
+*******************************************************************************/
+void gatts_process_value_conf(tGATT_TCB *p_tcb, UINT8 op_code)
+{
+    UINT16          handle = p_tcb->indicate_handle;
+    UINT32          trans_id;
+    UINT8           i;
+    tGATT_SR_REG    *p_rcb = gatt_cb.sr_reg;
+    BOOLEAN         continue_processing;
+    UINT16          conn_id;
+
+    alarm_cancel(p_tcb->conf_timer);
+    if (GATT_HANDLE_IS_VALID(handle))
+    {
+        p_tcb->indicate_handle = 0;
+        continue_processing = gatts_proc_ind_ack(p_tcb, handle);
+
+        if (continue_processing)
+        {
+            for (i = 0; i < GATT_MAX_SR_PROFILES; i ++, p_rcb ++)
+            {
+                if (p_rcb->in_use && p_rcb->s_hdl <= handle && p_rcb->e_hdl >= handle)
+                {
+                    trans_id = gatt_sr_enqueue_cmd(p_tcb, op_code, handle);
+                    conn_id = GATT_CREATE_CONN_ID(p_tcb->tcb_idx, p_rcb->gatt_if);
+                    gatt_sr_send_req_callback(conn_id,
+                                              trans_id, GATTS_REQ_TYPE_CONF, (tGATTS_DATA *)&handle);
+                }
+            }
+        }
+    }
+    else
+    {
+        GATT_TRACE_ERROR("unexpected handle value confirmation");
+    }
+}
+
+/*******************************************************************************
+**
+** Function         gatt_server_handle_client_req
+**
+** Description      This function is called to handle the client requests to
+**                  server.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void gatt_server_handle_client_req (tGATT_TCB *p_tcb, UINT8 op_code,
+                                    UINT16 len, UINT8 *p_data)
+{
+    /* there is pending command, discard this one */
+    if (!gatt_sr_cmd_empty(p_tcb) && op_code != GATT_HANDLE_VALUE_CONF)
+        return;
+
+    /* the size of the message may not be bigger than the local max PDU size*/
+    /* The message has to be smaller than the agreed MTU, len does not include op code */
+    if (len >= p_tcb->payload_size)
+    {
+        GATT_TRACE_ERROR("server receive invalid PDU size:%d pdu size:%d", len + 1, p_tcb->payload_size );
+        /* for invalid request expecting response, send it now */
+        if (op_code != GATT_CMD_WRITE &&
+            op_code != GATT_SIGN_CMD_WRITE &&
+            op_code != GATT_HANDLE_VALUE_CONF)
+        {
+            gatt_send_error_rsp (p_tcb, GATT_INVALID_PDU, op_code, 0, FALSE);
+        }
+        /* otherwise, ignore the pkt */
+    }
+    else
+    {
+        switch (op_code)
+        {
+            case GATT_REQ_READ_BY_GRP_TYPE: /* discover primary services */
+            case GATT_REQ_FIND_TYPE_VALUE: /* discover service by UUID */
+                gatts_process_primary_service_req (p_tcb, op_code, len, p_data);
+                break;
+
+            case GATT_REQ_FIND_INFO:/* discover char descrptor */
+                gatts_process_find_info(p_tcb, op_code, len, p_data);
+                break;
+
+            case GATT_REQ_READ_BY_TYPE: /* read characteristic value, char descriptor value */
+                /* discover characteristic, discover char by UUID */
+                gatts_process_read_by_type_req(p_tcb, op_code, len, p_data);
+                break;
+
+
+            case GATT_REQ_READ: /* read char/char descriptor value */
+            case GATT_REQ_READ_BLOB:
+            case GATT_REQ_WRITE: /* write char/char descriptor value */
+            case GATT_CMD_WRITE:
+            case GATT_SIGN_CMD_WRITE:
+            case GATT_REQ_PREPARE_WRITE:
+                gatts_process_attribute_req (p_tcb, op_code, len, p_data);
+                break;
+
+            case GATT_HANDLE_VALUE_CONF:
+                gatts_process_value_conf (p_tcb, op_code);
+                break;
+
+            case GATT_REQ_MTU:
+                gatts_process_mtu_req (p_tcb, len, p_data);
+                break;
+
+            case GATT_REQ_EXEC_WRITE:
+                gatt_process_exec_write_req (p_tcb, op_code, len, p_data);
+                break;
+
+            case GATT_REQ_READ_MULTI:
+                gatt_process_read_multi_req (p_tcb, op_code, len, p_data);
+                break;
+
+            default:
+                break;
+        }
+    }
+}
+
+#endif /* BLE_INCLUDED */
diff --git a/rtkbt/code/bt/stack/gatt/gatt_utils.c b/rtkbt/code/bt/stack/gatt/gatt_utils.c
new file mode 100755
index 0000000..f56925d
--- /dev/null
+++ b/rtkbt/code/bt/stack/gatt/gatt_utils.c
@@ -0,0 +1,2860 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  this file contains GATT utility functions
+ *
+ ******************************************************************************/
+#include "bt_target.h"
+#include "bt_utils.h"
+
+#if BLE_INCLUDED == TRUE
+    #include <string.h>
+    #include "stdio.h"
+    #include "bt_common.h"
+
+    #include "l2cdefs.h"
+    #include "gatt_int.h"
+    #include "gatt_api.h"
+    #include "gattdefs.h"
+    #include "sdp_api.h"
+    #include "btm_int.h"
+/* check if [x, y] and [a, b] have overlapping range */
+    #define GATT_VALIDATE_HANDLE_RANGE(x, y, a, b)   (y >= a && x <= b)
+
+    #define GATT_GET_NEXT_VALID_HANDLE(x)    (((x)/10 + 1) * 10)
+
+const char * const op_code_name[] =
+{
+    "UNKNOWN",
+    "ATT_RSP_ERROR",
+    "ATT_REQ_MTU",
+    "ATT_RSP_MTU",
+    "ATT_REQ_READ_INFO",
+    "ATT_RSP_READ_INFO",
+    "ATT_REQ_FIND_TYPE_VALUE",
+    "ATT_RSP_FIND_TYPE_VALUE",
+    "ATT_REQ_READ_BY_TYPE",
+    "ATT_RSP_READ_BY_TYPE",
+    "ATT_REQ_READ",
+    "ATT_RSP_READ",
+    "ATT_REQ_READ_BLOB",
+    "ATT_RSP_READ_BLOB",
+    "GATT_REQ_READ_MULTI",
+    "GATT_RSP_READ_MULTI",
+    "GATT_REQ_READ_BY_GRP_TYPE",
+    "GATT_RSP_READ_BY_GRP_TYPE",
+    "ATT_REQ_WRITE",
+    "ATT_RSP_WRITE",
+    "ATT_CMD_WRITE",
+    "ATT_SIGN_CMD_WRITE",
+    "ATT_REQ_PREPARE_WRITE",
+    "ATT_RSP_PREPARE_WRITE",
+    "ATT_REQ_EXEC_WRITE",
+    "ATT_RSP_EXEC_WRITE",
+    "Reserved",
+    "ATT_HANDLE_VALUE_NOTIF",
+    "Reserved",
+    "ATT_HANDLE_VALUE_IND",
+    "ATT_HANDLE_VALUE_CONF",
+    "ATT_OP_CODE_MAX"
+};
+
+static const UINT8  base_uuid[LEN_UUID_128] = {0xFB, 0x34, 0x9B, 0x5F, 0x80, 0x00, 0x00, 0x80,
+    0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
+
+extern fixed_queue_t *btu_general_alarm_queue;
+
+/*******************************************************************************
+**
+** Function         gatt_free_pending_ind
+**
+** Description    Free all pending indications
+**
+** Returns       None
+**
+*******************************************************************************/
+void gatt_free_pending_ind(tGATT_TCB *p_tcb)
+{
+    GATT_TRACE_DEBUG("%s", __func__);
+
+    if (p_tcb->pending_ind_q == NULL)
+        return;
+
+    /* release all queued indications */
+    while (!fixed_queue_is_empty(p_tcb->pending_ind_q))
+        osi_free(fixed_queue_try_dequeue(p_tcb->pending_ind_q));
+    fixed_queue_free(p_tcb->pending_ind_q, NULL);
+    p_tcb->pending_ind_q = NULL;
+}
+
+/*******************************************************************************
+**
+** Function         gatt_free_pending_enc_queue
+**
+** Description       Free all buffers in pending encyption queue
+**
+** Returns       None
+**
+*******************************************************************************/
+void gatt_free_pending_enc_queue(tGATT_TCB *p_tcb)
+{
+    GATT_TRACE_DEBUG("%s", __func__);
+
+    if (p_tcb->pending_enc_clcb == NULL)
+        return;
+
+    /* release all queued indications */
+    while (!fixed_queue_is_empty(p_tcb->pending_enc_clcb))
+        osi_free(fixed_queue_try_dequeue(p_tcb->pending_enc_clcb));
+    fixed_queue_free(p_tcb->pending_enc_clcb, NULL);
+    p_tcb->pending_enc_clcb = NULL;
+}
+
+/*******************************************************************************
+**
+** Function         gatt_delete_dev_from_srv_chg_clt_list
+**
+** Description    Delete a device from the service changed client lit
+**
+** Returns       None
+**
+*******************************************************************************/
+void gatt_delete_dev_from_srv_chg_clt_list(BD_ADDR bd_addr)
+{
+    GATT_TRACE_DEBUG("gatt_delete_dev_from_srv_chg_clt_list");
+
+    tGATTS_SRV_CHG *p_buf = gatt_is_bda_in_the_srv_chg_clt_list(bd_addr);
+    if (p_buf != NULL)
+    {
+        if (gatt_cb.cb_info.p_srv_chg_callback)
+        {
+            /* delete from NV */
+            tGATTS_SRV_CHG_REQ req;
+            memcpy(req.srv_chg.bda, bd_addr, BD_ADDR_LEN);
+            (*gatt_cb.cb_info.p_srv_chg_callback)(GATTS_SRV_CHG_CMD_REMOVE_CLIENT,&req, NULL);
+        }
+        osi_free(fixed_queue_try_remove_from_queue(gatt_cb.srv_chg_clt_q,
+                                                      p_buf));
+    }
+}
+
+/*******************************************************************************
+**
+** Function         gatt_set_srv_chg
+**
+** Description      Set the service changed flag to TRUE
+**
+** Returns        None
+**
+*******************************************************************************/
+void gatt_set_srv_chg(void)
+{
+    GATT_TRACE_DEBUG ("gatt_set_srv_chg");
+
+    if (fixed_queue_is_empty(gatt_cb.srv_chg_clt_q))
+        return;
+
+    list_t *list = fixed_queue_get_list(gatt_cb.srv_chg_clt_q);
+    for (const list_node_t *node = list_begin(list); node != list_end(list);
+         node = list_next(node)) {
+        GATT_TRACE_DEBUG ("found a srv_chg clt");
+
+        tGATTS_SRV_CHG *p_buf = (tGATTS_SRV_CHG *)list_node(node);
+        if (!p_buf->srv_changed)
+        {
+            GATT_TRACE_DEBUG("set srv_changed to TRUE");
+            p_buf->srv_changed = TRUE;
+            tGATTS_SRV_CHG_REQ req;
+            memcpy(&req.srv_chg, p_buf, sizeof(tGATTS_SRV_CHG));
+            if (gatt_cb.cb_info.p_srv_chg_callback)
+                (*gatt_cb.cb_info.p_srv_chg_callback)(GATTS_SRV_CHG_CMD_UPDATE_CLIENT,&req, NULL);
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         gatt_sr_is_new_srv_chg
+**
+** Description     Find the app id in on the new service changed list
+**
+** Returns     Pointer to the found new service changed item othwerwise NULL
+**
+*******************************************************************************/
+tGATTS_PENDING_NEW_SRV_START *gatt_sr_is_new_srv_chg(tBT_UUID *p_app_uuid128, tBT_UUID *p_svc_uuid, UINT16 svc_inst)
+{
+    tGATTS_PENDING_NEW_SRV_START *p_buf = NULL;
+
+    if (fixed_queue_is_empty(gatt_cb.pending_new_srv_start_q))
+        return NULL;
+
+    list_t *list = fixed_queue_get_list(gatt_cb.pending_new_srv_start_q);
+    for (const list_node_t *node = list_begin(list); node != list_end(list);
+         node = list_next(node)) {
+        p_buf = (tGATTS_PENDING_NEW_SRV_START *)list_node(node);
+        tGATTS_HNDL_RANGE *p = p_buf->p_new_srv_start;
+        if (gatt_uuid_compare(*p_app_uuid128, p->app_uuid128)
+            && gatt_uuid_compare (*p_svc_uuid, p->svc_uuid)
+            && (svc_inst == p->svc_inst)) {
+            GATT_TRACE_DEBUG("gatt_sr_is_new_srv_chg: Yes");
+            break;
+        }
+    }
+
+    return p_buf;
+}
+
+
+/*******************************************************************************
+**
+** Function     gatt_add_pending_ind
+**
+** Description  Add a pending indication
+**
+** Returns    Pointer to the current pending indication buffer, NULL no buffer available
+**
+*******************************************************************************/
+tGATT_VALUE *gatt_add_pending_ind(tGATT_TCB  *p_tcb, tGATT_VALUE *p_ind)
+{
+    tGATT_VALUE *p_buf = (tGATT_VALUE *)osi_malloc(sizeof(tGATT_VALUE));
+
+    GATT_TRACE_DEBUG("%s", __func__);
+    GATT_TRACE_DEBUG("enqueue a pending indication");
+
+    memcpy(p_buf, p_ind, sizeof(tGATT_VALUE));
+    fixed_queue_enqueue(p_tcb->pending_ind_q, p_buf);
+
+    return p_buf;
+}
+
+/*******************************************************************************
+**
+** Function     gatt_add_pending_new_srv_start
+**
+** Description  Add a pending new srv start to the new service start queue
+**
+** Returns    Pointer to the new service start buffer, NULL no buffer available
+**
+*******************************************************************************/
+tGATTS_PENDING_NEW_SRV_START *gatt_add_pending_new_srv_start(tGATTS_HNDL_RANGE *p_new_srv_start)
+{
+    tGATTS_PENDING_NEW_SRV_START *p_buf =
+        (tGATTS_PENDING_NEW_SRV_START *)osi_malloc(sizeof(tGATTS_PENDING_NEW_SRV_START));
+
+    GATT_TRACE_DEBUG("%s", __func__);
+    GATT_TRACE_DEBUG("enqueue a new pending new srv start");
+
+    p_buf->p_new_srv_start = p_new_srv_start;
+    fixed_queue_enqueue(gatt_cb.pending_new_srv_start_q, p_buf);
+
+    return p_buf;
+}
+
+
+/*******************************************************************************
+**
+** Function     gatt_add_srv_chg_clt
+**
+** Description  Add a service chnage client to the service change client queue
+**
+** Returns    Pointer to the service change client buffer; Null no buffer available
+**
+*******************************************************************************/
+tGATTS_SRV_CHG *gatt_add_srv_chg_clt(tGATTS_SRV_CHG *p_srv_chg)
+{
+    tGATTS_SRV_CHG *p_buf = (tGATTS_SRV_CHG *)osi_malloc(sizeof(tGATTS_SRV_CHG));
+
+    GATT_TRACE_DEBUG("%s", __func__);
+    GATT_TRACE_DEBUG("enqueue a srv chg client");
+
+    memcpy(p_buf, p_srv_chg, sizeof(tGATTS_SRV_CHG));
+    fixed_queue_enqueue(gatt_cb.srv_chg_clt_q, p_buf);
+
+    return p_buf;
+}
+
+/*******************************************************************************
+**
+** Function     gatt_alloc_hdl_buffer
+**
+** Description  Allocate a handle buufer
+**
+** Returns    Pointer to the allocated buffer, NULL no buffer available
+**
+*******************************************************************************/
+tGATT_HDL_LIST_ELEM *gatt_alloc_hdl_buffer(void)
+{
+    UINT8 i;
+    tGATT_CB    *p_cb = &gatt_cb;
+    tGATT_HDL_LIST_ELEM * p_elem= &p_cb->hdl_list[0];
+
+    for (i = 0; i < GATT_MAX_SR_PROFILES; i++, p_elem++)
+    {
+        if (!p_cb->hdl_list[i].in_use)
+        {
+            memset(p_elem, 0, sizeof(tGATT_HDL_LIST_ELEM));
+            p_elem->in_use = TRUE;
+            p_elem->svc_db.svc_buffer = fixed_queue_new(SIZE_MAX);
+            return p_elem;
+        }
+    }
+
+    return NULL;
+}
+
+/*******************************************************************************
+**
+** Function     gatt_find_hdl_buffer_by_handle
+**
+** Description  Find handle range buffer by service handle.
+**
+** Returns    Pointer to the buffer, NULL no buffer available
+**
+*******************************************************************************/
+tGATT_HDL_LIST_ELEM *gatt_find_hdl_buffer_by_handle(UINT16 handle)
+{
+    tGATT_HDL_LIST_INFO *p_list_info= &gatt_cb.hdl_list_info;
+    tGATT_HDL_LIST_ELEM      *p_list = NULL;
+
+    p_list = p_list_info->p_first;
+
+    while (p_list != NULL)
+    {
+        if (p_list->in_use && p_list->asgn_range.s_handle == handle)
+        {
+            return(p_list);
+        }
+        p_list = p_list->p_next;
+    }
+    return NULL;
+}
+/*******************************************************************************
+**
+** Function     gatt_find_hdl_buffer_by_app_id
+**
+** Description  Find handle range buffer by app ID, service and service instance ID.
+**
+** Returns    Pointer to the buffer, NULL no buffer available
+**
+*******************************************************************************/
+tGATT_HDL_LIST_ELEM *gatt_find_hdl_buffer_by_app_id (tBT_UUID *p_app_uuid128,
+                                                     tBT_UUID *p_svc_uuid,
+                                                     UINT16 svc_inst)
+{
+    tGATT_HDL_LIST_INFO *p_list_info= &gatt_cb.hdl_list_info;
+    tGATT_HDL_LIST_ELEM      *p_list = NULL;
+
+    p_list = p_list_info->p_first;
+
+    while (p_list != NULL)
+    {
+        if ( gatt_uuid_compare (*p_app_uuid128, p_list->asgn_range.app_uuid128)
+             &&  gatt_uuid_compare (*p_svc_uuid,    p_list->asgn_range.svc_uuid)
+             &&  (svc_inst == p_list->asgn_range.svc_inst) )
+        {
+            GATT_TRACE_DEBUG ("Already allocated handles for this service before!!");
+            return(p_list);
+        }
+        p_list = p_list->p_next;
+    }
+    return NULL;
+}
+/*******************************************************************************
+**
+** Function         gatt_free_hdl_buffer
+**
+** Description     free a handle buffer
+**
+** Returns       None
+**
+*******************************************************************************/
+void gatt_free_hdl_buffer(tGATT_HDL_LIST_ELEM *p)
+{
+
+    if (p)
+    {
+        while (!fixed_queue_is_empty(p->svc_db.svc_buffer))
+            osi_free(fixed_queue_try_dequeue(p->svc_db.svc_buffer));
+        fixed_queue_free(p->svc_db.svc_buffer, NULL);
+        memset(p, 0, sizeof(tGATT_HDL_LIST_ELEM));
+    }
+}
+/*******************************************************************************
+**
+** Function         gatt_free_srvc_db_buffer_app_id
+**
+** Description      free the service attribute database buffers by the owner of the
+**                  service app ID.
+**
+** Returns       None
+**
+*******************************************************************************/
+void gatt_free_srvc_db_buffer_app_id(tBT_UUID *p_app_id)
+{
+    tGATT_HDL_LIST_ELEM *p_elem =  &gatt_cb.hdl_list[0];
+    UINT8   i;
+
+    for (i = 0; i < GATT_MAX_SR_PROFILES; i ++, p_elem ++)
+    {
+        if (memcmp(p_app_id, &p_elem->asgn_range.app_uuid128, sizeof(tBT_UUID)) == 0)
+        {
+            while (!fixed_queue_is_empty(p_elem->svc_db.svc_buffer))
+                osi_free(fixed_queue_try_dequeue(p_elem->svc_db.svc_buffer));
+            fixed_queue_free(p_elem->svc_db.svc_buffer, NULL);
+            p_elem->svc_db.svc_buffer = NULL;
+
+            p_elem->svc_db.mem_free = 0;
+            p_elem->svc_db.p_attr_list = p_elem->svc_db.p_free_mem = NULL;
+        }
+    }
+}
+/*******************************************************************************
+**
+** Function         gatt_is_last_attribute
+**
+** Description     Check this is the last attribute of the specified value or not
+**
+** Returns       TRUE - yes this is the last attribute
+**
+*******************************************************************************/
+BOOLEAN gatt_is_last_attribute(tGATT_SRV_LIST_INFO *p_list, tGATT_SRV_LIST_ELEM *p_start, tBT_UUID value)
+{
+    tGATT_SRV_LIST_ELEM *p_srv= p_start->p_next;
+    BOOLEAN              is_last_attribute = TRUE;
+    tGATT_SR_REG        *p_rcb = NULL;
+    tBT_UUID            *p_svc_uuid;
+
+    p_list->p_last_primary = NULL;
+
+    while (p_srv)
+    {
+        p_rcb = GATT_GET_SR_REG_PTR(p_srv->i_sreg);
+
+        p_svc_uuid = gatts_get_service_uuid (p_rcb->p_db);
+
+        if (gatt_uuid_compare(value, *p_svc_uuid))
+        {
+            is_last_attribute = FALSE;
+            break;
+
+        }
+        p_srv = p_srv->p_next;
+    }
+
+    return is_last_attribute;
+
+}
+
+/*******************************************************************************
+**
+** Function         gatt_update_last_pri_srv_info
+**
+** Description     Update the the last primary info for the service list info
+**
+** Returns       None
+**
+*******************************************************************************/
+void gatt_update_last_pri_srv_info(tGATT_SRV_LIST_INFO *p_list)
+{
+    tGATT_SRV_LIST_ELEM *p_srv= p_list->p_first;
+
+    p_list->p_last_primary = NULL;
+
+    while (p_srv)
+    {
+        if (p_srv->is_primary)
+        {
+            p_list->p_last_primary = p_srv;
+        }
+        p_srv = p_srv->p_next;
+    }
+
+}
+/*******************************************************************************
+**
+** Function         gatts_update_srv_list_elem
+**
+** Description      update an element in the service list.
+**
+** Returns          None.
+**
+*******************************************************************************/
+void gatts_update_srv_list_elem(UINT8 i_sreg, UINT16 handle, BOOLEAN is_primary)
+{
+    UNUSED(handle);
+
+    gatt_cb.srv_list[i_sreg].in_use         = TRUE;
+    gatt_cb.srv_list[i_sreg].i_sreg    = i_sreg;
+    gatt_cb.srv_list[i_sreg].s_hdl          = gatt_cb.sr_reg[i_sreg].s_hdl;
+    gatt_cb.srv_list[i_sreg].is_primary     = is_primary;
+
+    return;
+}
+/*******************************************************************************
+**
+** Function  gatt_add_a_srv_to_list
+**
+** Description  add an service to the list in ascending
+**              order of the start handle
+**
+** Returns   BOOLEAN TRUE-if add is successful
+**
+*******************************************************************************/
+BOOLEAN gatt_add_a_srv_to_list(tGATT_SRV_LIST_INFO *p_list, tGATT_SRV_LIST_ELEM *p_new)
+{
+    tGATT_SRV_LIST_ELEM *p_old;
+
+    if (!p_new)
+    {
+        GATT_TRACE_DEBUG("p_new==NULL");
+        return FALSE;
+    }
+
+    if (!p_list->p_first)
+    {
+        /* this is an empty list */
+        p_list->p_first =
+        p_list->p_last  = p_new;
+        p_new->p_next   =
+        p_new->p_prev   = NULL;
+    }
+    else
+    {
+        p_old = p_list->p_first;
+        while (1)
+        {
+            if (p_old == NULL)
+            {
+                p_list->p_last->p_next      = p_new;
+                p_new->p_prev               = p_list->p_last;
+                p_new->p_next               = NULL;
+                p_list->p_last              = p_new;
+                break;
+            }
+            else
+            {
+                if (p_new->s_hdl <  p_old->s_hdl)
+                {
+                    /* if not the first in list */
+                    if (p_old->p_prev != NULL)
+                        p_old->p_prev->p_next   = p_new;
+                    else
+                        p_list->p_first = p_new;
+
+                    p_new->p_prev           = p_old->p_prev;
+                    p_new->p_next           = p_old;
+                    p_old->p_prev           = p_new;
+                    break;
+                }
+            }
+            p_old = p_old->p_next;
+        }
+    }
+    p_list->count++;
+
+    gatt_update_last_pri_srv_info(p_list);
+    return TRUE;
+
+}
+
+/*******************************************************************************
+**
+** Function  gatt_remove_a_srv_from_list
+**
+** Description  Remove a service from the list
+**
+** Returns   BOOLEAN TRUE-if remove is successful
+**
+*******************************************************************************/
+BOOLEAN gatt_remove_a_srv_from_list(tGATT_SRV_LIST_INFO *p_list, tGATT_SRV_LIST_ELEM *p_remove)
+{
+    if (!p_remove || !p_list->p_first)
+    {
+        GATT_TRACE_DEBUG("p_remove==NULL || p_list->p_first==NULL");
+        return FALSE;
+    }
+
+    if (p_remove->p_prev == NULL)
+    {
+        p_list->p_first             = p_remove->p_next;
+        if (p_remove->p_next)
+            p_remove->p_next->p_prev    = NULL;
+    }
+    else if (p_remove->p_next == NULL)
+    {
+        p_list->p_last              = p_remove->p_prev;
+        p_remove->p_prev->p_next    = NULL;
+    }
+    else
+    {
+        p_remove->p_next->p_prev = p_remove->p_prev;
+        p_remove->p_prev->p_next = p_remove->p_next;
+    }
+    p_list->count--;
+    gatt_update_last_pri_srv_info(p_list);
+    return TRUE;
+
+}
+
+/*******************************************************************************
+**
+** Function  gatt_add_an_item_to_list
+**
+** Description  add an service handle range to the list in decending
+**              order of the start handle
+**
+** Returns   BOOLEAN TRUE-if add is successful
+**
+*******************************************************************************/
+BOOLEAN gatt_add_an_item_to_list(tGATT_HDL_LIST_INFO *p_list, tGATT_HDL_LIST_ELEM *p_new)
+{
+    tGATT_HDL_LIST_ELEM *p_old;
+    if (!p_new)
+    {
+        GATT_TRACE_DEBUG("p_new==NULL");
+        return FALSE;
+    }
+
+    if (!p_list->p_first)
+    {
+        /* this is an empty list */
+        p_list->p_first =
+        p_list->p_last  = p_new;
+        p_new->p_next   =
+        p_new->p_prev   = NULL;
+    }
+    else
+    {
+        p_old = p_list->p_first;
+        while (1)
+        {
+            if (p_old == NULL)
+            {
+                p_list->p_last->p_next      = p_new;
+                p_new->p_prev               = p_list->p_last;
+                p_new->p_next               = NULL;
+                p_list->p_last              = p_new;
+
+                break;
+
+            }
+            else
+            {
+                if (p_new->asgn_range.s_handle >  p_old->asgn_range.s_handle)
+                {
+                    if (p_old == p_list->p_first)
+                        p_list->p_first = p_new;
+
+                    p_new->p_prev    = p_old->p_prev;
+                    p_new->p_next    = p_old;
+
+
+                    p_old->p_prev    = p_new;
+                    break;
+                }
+            }
+            p_old = p_old->p_next;
+        }
+    }
+    p_list->count++;
+    return TRUE;
+
+}
+
+/*******************************************************************************
+**
+** Function  gatt_remove_an_item_from_list
+**
+** Description  Remove an service handle range from the list
+**
+** Returns   BOOLEAN TRUE-if remove is successful
+**
+*******************************************************************************/
+BOOLEAN gatt_remove_an_item_from_list(tGATT_HDL_LIST_INFO *p_list, tGATT_HDL_LIST_ELEM *p_remove)
+{
+    if (!p_remove || !p_list->p_first)
+    {
+        GATT_TRACE_DEBUG("p_remove==NULL || p_list->p_first==NULL");
+        return FALSE;
+    }
+
+    if (p_remove->p_prev == NULL)
+    {
+        p_list->p_first             = p_remove->p_next;
+        if (p_remove->p_next)
+            p_remove->p_next->p_prev    = NULL;
+    }
+    else if (p_remove->p_next == NULL)
+    {
+        p_list->p_last              = p_remove->p_prev;
+        p_remove->p_prev->p_next    = NULL;
+    }
+    else
+    {
+        p_remove->p_next->p_prev = p_remove->p_prev;
+        p_remove->p_prev->p_next = p_remove->p_next;
+    }
+    p_list->count--;
+    return TRUE;
+
+}
+
+/*******************************************************************************
+**
+** Function         gatt_find_the_connected_bda
+**
+** Description      This function find the connected bda
+**
+** Returns           TRUE if found
+**
+*******************************************************************************/
+BOOLEAN gatt_find_the_connected_bda(UINT8 start_idx, BD_ADDR bda, UINT8 *p_found_idx,
+                                    tBT_TRANSPORT *p_transport)
+{
+    UINT8 i;
+    BOOLEAN found = FALSE;
+    GATT_TRACE_DEBUG("gatt_find_the_connected_bda start_idx=%d",start_idx);
+
+    for (i = start_idx ; i < GATT_MAX_PHY_CHANNEL; i ++)
+    {
+        if (gatt_cb.tcb[i].in_use && gatt_cb.tcb[i].ch_state == GATT_CH_OPEN)
+        {
+            memcpy( bda, gatt_cb.tcb[i].peer_bda, BD_ADDR_LEN);
+            *p_found_idx = i;
+            *p_transport = gatt_cb.tcb[i].transport;
+            found = TRUE;
+            GATT_TRACE_DEBUG("gatt_find_the_connected_bda bda :%02x-%02x-%02x-%02x-%02x-%02x",
+                              bda[0],  bda[1], bda[2],  bda[3], bda[4],  bda[5]);
+            break;
+        }
+    }
+    GATT_TRACE_DEBUG("gatt_find_the_connected_bda found=%d found_idx=%d", found, i);
+    return found;
+}
+
+
+
+/*******************************************************************************
+**
+** Function         gatt_is_srv_chg_ind_pending
+**
+** Description      Check whether a service chnaged is in the indication pending queue
+**                  or waiting for an Ack already
+**
+** Returns         BOOLEAN
+**
+*******************************************************************************/
+BOOLEAN gatt_is_srv_chg_ind_pending (tGATT_TCB *p_tcb)
+{
+    BOOLEAN srv_chg_ind_pending = FALSE;
+
+    GATT_TRACE_DEBUG("gatt_is_srv_chg_ind_pending is_queue_empty=%d",
+                     fixed_queue_is_empty(p_tcb->pending_ind_q));
+
+    if (p_tcb->indicate_handle == gatt_cb.handle_of_h_r)
+    {
+        srv_chg_ind_pending = TRUE;
+    }
+    else if (! fixed_queue_is_empty(p_tcb->pending_ind_q))
+    {
+        list_t *list = fixed_queue_get_list(p_tcb->pending_ind_q);
+        for (const list_node_t *node = list_begin(list);
+             node != list_end(list);
+             node = list_next(node)) {
+            tGATT_VALUE *p_buf = (tGATT_VALUE *)list_node(node);
+            if (p_buf->handle == gatt_cb.handle_of_h_r)
+            {
+                srv_chg_ind_pending = TRUE;
+                break;
+            }
+        }
+    }
+
+    GATT_TRACE_DEBUG("srv_chg_ind_pending = %d", srv_chg_ind_pending);
+    return srv_chg_ind_pending;
+}
+
+
+/*******************************************************************************
+**
+** Function         gatt_is_bda_in_the_srv_chg_clt_list
+**
+** Description      This function check the specified bda is in the srv chg clinet list or not
+**
+** Returns         pointer to the found elemenet otherwise NULL
+**
+*******************************************************************************/
+tGATTS_SRV_CHG *gatt_is_bda_in_the_srv_chg_clt_list (BD_ADDR bda)
+{
+    tGATTS_SRV_CHG *p_buf = NULL;
+
+    GATT_TRACE_DEBUG("gatt_is_bda_in_the_srv_chg_clt_list :%02x-%02x-%02x-%02x-%02x-%02x",
+                      bda[0],  bda[1], bda[2],  bda[3], bda[4],  bda[5]);
+
+    if (fixed_queue_is_empty(gatt_cb.srv_chg_clt_q))
+        return NULL;
+
+    list_t *list = fixed_queue_get_list(gatt_cb.srv_chg_clt_q);
+    for (const list_node_t *node = list_begin(list); node != list_end(list);
+         node = list_next(node)) {
+        tGATTS_SRV_CHG *p_buf = (tGATTS_SRV_CHG *)list_node(node);
+        if (!memcmp( bda, p_buf->bda, BD_ADDR_LEN))
+        {
+            GATT_TRACE_DEBUG("bda is in the srv chg clt list");
+            break;
+        }
+    }
+
+    return p_buf;
+}
+
+
+/*******************************************************************************
+**
+** Function         gatt_is_bda_connected
+**
+** Description
+**
+** Returns           GATT_INDEX_INVALID if not found. Otherwise index to the tcb.
+**
+*******************************************************************************/
+BOOLEAN gatt_is_bda_connected(BD_ADDR bda)
+{
+    UINT8 i = 0;
+    BOOLEAN connected=FALSE;
+
+    for ( i=0; i < GATT_MAX_PHY_CHANNEL; i ++)
+    {
+        if (gatt_cb.tcb[i].in_use &&
+            !memcmp(gatt_cb.tcb[i].peer_bda, bda, BD_ADDR_LEN))
+        {
+            connected = TRUE;
+            break;
+        }
+    }
+    return connected;
+}
+
+/*******************************************************************************
+**
+** Function         gatt_find_i_tcb_by_addr
+**
+** Description      The function searches for an empty tcb entry, and return the index.
+**
+** Returns           GATT_INDEX_INVALID if not found. Otherwise index to the tcb.
+**
+*******************************************************************************/
+UINT8 gatt_find_i_tcb_by_addr(BD_ADDR bda, tBT_TRANSPORT transport)
+{
+    UINT8 i = 0;
+
+    for ( ; i < GATT_MAX_PHY_CHANNEL; i ++)
+    {
+        if (!memcmp(gatt_cb.tcb[i].peer_bda, bda, BD_ADDR_LEN) &&
+            gatt_cb.tcb[i].transport == transport)
+        {
+            return i;
+        }
+    }
+    return GATT_INDEX_INVALID;
+}
+
+
+/*******************************************************************************
+**
+** Function         gatt_get_tcb_by_idx
+**
+** Description      The function get TCB using the TCB index
+**
+** Returns           NULL if not found. Otherwise index to the tcb.
+**
+*******************************************************************************/
+tGATT_TCB * gatt_get_tcb_by_idx(UINT8 tcb_idx)
+{
+    tGATT_TCB   *p_tcb = NULL;
+
+    if ( (tcb_idx < GATT_MAX_PHY_CHANNEL) && gatt_cb.tcb[tcb_idx].in_use)
+        p_tcb = &gatt_cb.tcb[tcb_idx];
+
+    return p_tcb;
+}
+
+/*******************************************************************************
+**
+** Function         gatt_find_tcb_by_addr
+**
+** Description      The function searches for an empty tcb entry, and return pointer.
+**
+** Returns           NULL if not found. Otherwise index to the tcb.
+**
+*******************************************************************************/
+tGATT_TCB * gatt_find_tcb_by_addr(BD_ADDR bda, tBT_TRANSPORT transport)
+{
+    tGATT_TCB   *p_tcb = NULL;
+    UINT8 i = 0;
+
+    if ((i = gatt_find_i_tcb_by_addr(bda, transport)) != GATT_INDEX_INVALID)
+        p_tcb = &gatt_cb.tcb[i];
+
+    return p_tcb;
+}
+/*******************************************************************************
+**
+** Function         gatt_find_i_tcb_free
+**
+** Description      The function searches for an empty tcb entry, and return the index.
+**
+** Returns           GATT_INDEX_INVALID if not found. Otherwise index to the tcb.
+**
+*******************************************************************************/
+UINT8 gatt_find_i_tcb_free(void)
+{
+    UINT8 i = 0, j = GATT_INDEX_INVALID;
+
+    for (i = 0; i < GATT_MAX_PHY_CHANNEL; i ++)
+    {
+        if (!gatt_cb.tcb[i].in_use)
+        {
+            j = i;
+            break;
+        }
+    }
+    return j;
+}
+/*******************************************************************************
+**
+** Function         gatt_allocate_tcb_by_bdaddr
+**
+** Description      The function locate or allocate new tcb entry for matching bda.
+**
+** Returns           GATT_INDEX_INVALID if not found. Otherwise index to the tcb.
+**
+*******************************************************************************/
+tGATT_TCB * gatt_allocate_tcb_by_bdaddr(BD_ADDR bda, tBT_TRANSPORT transport)
+{
+    UINT8 i = 0;
+    BOOLEAN allocated = FALSE;
+    tGATT_TCB    *p_tcb = NULL;
+
+    /* search for existing tcb with matching bda    */
+    i = gatt_find_i_tcb_by_addr(bda, transport);
+    /* find free tcb */
+    if (i == GATT_INDEX_INVALID)
+    {
+        i = gatt_find_i_tcb_free();
+        allocated = TRUE;
+    }
+    if (i != GATT_INDEX_INVALID)
+    {
+        p_tcb = &gatt_cb.tcb[i];
+
+        if (allocated)
+        {
+            memset(p_tcb, 0, sizeof(tGATT_TCB));
+            p_tcb->pending_enc_clcb = fixed_queue_new(SIZE_MAX);
+            p_tcb->pending_ind_q = fixed_queue_new(SIZE_MAX);
+            p_tcb->conf_timer = alarm_new("gatt.conf_timer");
+            p_tcb->ind_ack_timer = alarm_new("gatt.ind_ack_timer");
+            p_tcb->sr_cmd.multi_rsp_q = fixed_queue_new(SIZE_MAX);
+            p_tcb->in_use = TRUE;
+            p_tcb->tcb_idx = i;
+            p_tcb->transport = transport;
+        }
+        memcpy(p_tcb->peer_bda, bda, BD_ADDR_LEN);
+    }
+    return p_tcb;
+}
+
+/*******************************************************************************
+**
+** Function         gatt_convert_uuid16_to_uuid128
+**
+** Description      Convert a 16 bits UUID to be an standard 128 bits one.
+**
+** Returns          TRUE if two uuid match; FALSE otherwise.
+**
+*******************************************************************************/
+void gatt_convert_uuid16_to_uuid128(UINT8 uuid_128[LEN_UUID_128], UINT16 uuid_16)
+{
+    UINT8   *p = &uuid_128[LEN_UUID_128 - 4];
+
+    memcpy (uuid_128, base_uuid, LEN_UUID_128);
+
+    UINT16_TO_STREAM(p, uuid_16);
+}
+
+/*******************************************************************************
+**
+** Function         gatt_convert_uuid32_to_uuid128
+**
+** Description      Convert a 32 bits UUID to be an standard 128 bits one.
+**
+** Returns          TRUE if two uuid match; FALSE otherwise.
+**
+*******************************************************************************/
+void gatt_convert_uuid32_to_uuid128(UINT8 uuid_128[LEN_UUID_128], UINT32 uuid_32)
+{
+    UINT8   *p = &uuid_128[LEN_UUID_128 - 4];
+
+    memcpy (uuid_128, base_uuid, LEN_UUID_128);
+
+    UINT32_TO_STREAM(p, uuid_32);
+}
+/*******************************************************************************
+**
+** Function         gatt_uuid_compare
+**
+** Description      Compare two UUID to see if they are the same.
+**
+** Returns          TRUE if two uuid match; FALSE otherwise.
+**
+*******************************************************************************/
+BOOLEAN gatt_uuid_compare (tBT_UUID src, tBT_UUID tar)
+{
+    UINT8  su[LEN_UUID_128], tu[LEN_UUID_128];
+    UINT8  *ps, *pt;
+
+    /* any of the UUID is unspecified */
+    if (src.len == 0 || tar.len == 0)
+    {
+        return TRUE;
+    }
+
+    /* If both are 16-bit, we can do a simple compare */
+    if (src.len == LEN_UUID_16 && tar.len == LEN_UUID_16)
+    {
+        return src.uu.uuid16 == tar.uu.uuid16;
+    }
+
+    /* If both are 32-bit, we can do a simple compare */
+    if (src.len == LEN_UUID_32 && tar.len == LEN_UUID_32)
+    {
+        return src.uu.uuid32 == tar.uu.uuid32;
+    }
+
+    /* One or both of the UUIDs is 128-bit */
+    if (src.len == LEN_UUID_16)
+    {
+        /* convert a 16 bits UUID to 128 bits value */
+        gatt_convert_uuid16_to_uuid128(su, src.uu.uuid16);
+        ps = su;
+    }
+    else if (src.len == LEN_UUID_32)
+    {
+        gatt_convert_uuid32_to_uuid128(su, src.uu.uuid32);
+        ps = su;
+    }
+    else
+        ps = src.uu.uuid128;
+
+    if (tar.len == LEN_UUID_16)
+    {
+        /* convert a 16 bits UUID to 128 bits value */
+        gatt_convert_uuid16_to_uuid128(tu, tar.uu.uuid16);
+        pt = tu;
+    }
+    else if (tar.len == LEN_UUID_32)
+    {
+        /* convert a 32 bits UUID to 128 bits value */
+        gatt_convert_uuid32_to_uuid128(tu, tar.uu.uuid32);
+        pt = tu;
+    }
+    else
+        pt = tar.uu.uuid128;
+
+    return(memcmp(ps, pt, LEN_UUID_128) == 0);
+}
+
+/*******************************************************************************
+**
+** Function         gatt_build_uuid_to_stream
+**
+** Description      Add UUID into stream.
+**
+** Returns          UUID length.
+**
+*******************************************************************************/
+UINT8 gatt_build_uuid_to_stream(UINT8 **p_dst, tBT_UUID uuid)
+{
+    UINT8   *p = *p_dst;
+    UINT8   len = 0;
+
+    if (uuid.len == LEN_UUID_16)
+    {
+        UINT16_TO_STREAM (p, uuid.uu.uuid16);
+        len = LEN_UUID_16;
+    }
+    else if (uuid.len == LEN_UUID_32) /* always convert 32 bits into 128 bits as alwats */
+    {
+        gatt_convert_uuid32_to_uuid128(p, uuid.uu.uuid32);
+        p += LEN_UUID_128;
+        len = LEN_UUID_128;
+    }
+    else if (uuid.len == LEN_UUID_128)
+    {
+        ARRAY_TO_STREAM (p, uuid.uu.uuid128, LEN_UUID_128);
+        len = LEN_UUID_128;
+    }
+
+    *p_dst = p;
+    return len;
+}
+
+/*******************************************************************************
+**
+** Function         gatt_parse_uuid_from_cmd
+**
+** Description      Convert a 128 bits UUID into a 16 bits UUID.
+**
+** Returns          TRUE if command sent, otherwise FALSE.
+**
+*******************************************************************************/
+BOOLEAN gatt_parse_uuid_from_cmd(tBT_UUID *p_uuid_rec, UINT16 uuid_size, UINT8 **p_data)
+{
+    BOOLEAN is_base_uuid, ret = TRUE;
+    UINT8  xx;
+    UINT8 *p_uuid = *p_data;
+
+    memset(p_uuid_rec, 0, sizeof(tBT_UUID));
+
+    switch (uuid_size)
+    {
+        case LEN_UUID_16:
+            p_uuid_rec->len = uuid_size;
+            STREAM_TO_UINT16 (p_uuid_rec->uu.uuid16, p_uuid);
+            *p_data += LEN_UUID_16;
+            break;
+
+        case LEN_UUID_128:
+            /* See if we can compress his UUID down to 16 or 32bit UUIDs */
+            is_base_uuid = TRUE;
+            for (xx = 0; xx < LEN_UUID_128 - 4; xx++)
+            {
+                if (p_uuid[xx] != base_uuid[xx])
+                {
+                    is_base_uuid = FALSE;
+                    break;
+                }
+            }
+            if (is_base_uuid)
+            {
+                if ((p_uuid[LEN_UUID_128 - 1] == 0) && (p_uuid[LEN_UUID_128 - 2] == 0))
+                {
+                    p_uuid += (LEN_UUID_128 - 4);
+                    p_uuid_rec->len = LEN_UUID_16;
+                    STREAM_TO_UINT16(p_uuid_rec->uu.uuid16, p_uuid);
+                }
+                else
+                {
+                    p_uuid += (LEN_UUID_128 - LEN_UUID_32);
+                    p_uuid_rec->len = LEN_UUID_32;
+                    STREAM_TO_UINT32(p_uuid_rec->uu.uuid32, p_uuid);
+                }
+            }
+            if (!is_base_uuid)
+            {
+                p_uuid_rec->len = LEN_UUID_128;
+                memcpy(p_uuid_rec->uu.uuid128, p_uuid, LEN_UUID_128);
+            }
+            *p_data += LEN_UUID_128;
+            break;
+
+        /* do not allow 32 bits UUID in ATT PDU now */
+        case LEN_UUID_32:
+            GATT_TRACE_ERROR("DO NOT ALLOW 32 BITS UUID IN ATT PDU");
+        case 0:
+        default:
+            if (uuid_size != 0) ret = FALSE;
+            GATT_TRACE_WARNING("gatt_parse_uuid_from_cmd invalid uuid size");
+            break;
+    }
+
+    return( ret);
+}
+
+/*******************************************************************************
+**
+** Function         gatt_start_rsp_timer
+**
+** Description      Start a wait_for_response timer.
+**
+** Returns          void
+**
+*******************************************************************************/
+void gatt_start_rsp_timer(UINT16 clcb_idx)
+{
+    tGATT_CLCB *p_clcb = &gatt_cb.clcb[clcb_idx];
+    period_ms_t timeout_ms = GATT_WAIT_FOR_RSP_TIMEOUT_MS;
+
+    if (p_clcb->operation == GATTC_OPTYPE_DISCOVERY &&
+        p_clcb->op_subtype == GATT_DISC_SRVC_ALL) {
+        timeout_ms = GATT_WAIT_FOR_DISC_RSP_TIMEOUT_MS;
+    }
+
+    // TODO: The tGATT_CLCB memory and state management needs cleanup,
+    // and then the timers can be allocated elsewhere.
+    if (p_clcb->gatt_rsp_timer_ent == NULL) {
+        p_clcb->gatt_rsp_timer_ent = alarm_new("gatt.gatt_rsp_timer_ent");
+    }
+    alarm_set_on_queue(p_clcb->gatt_rsp_timer_ent, timeout_ms,
+                       gatt_rsp_timeout, p_clcb, btu_general_alarm_queue);
+}
+
+/*******************************************************************************
+**
+** Function         gatt_start_conf_timer
+**
+** Description      Start a wait_for_confirmation timer.
+**
+** Returns          void
+**
+*******************************************************************************/
+void gatt_start_conf_timer(tGATT_TCB *p_tcb)
+{
+    alarm_set_on_queue(p_tcb->conf_timer, GATT_WAIT_FOR_RSP_TIMEOUT_MS,
+                       gatt_indication_confirmation_timeout, p_tcb,
+                       btu_general_alarm_queue);
+}
+
+/*******************************************************************************
+**
+** Function         gatt_start_ind_ack_timer
+**
+** Description      start the application ack timer
+**
+** Returns          void
+**
+*******************************************************************************/
+void gatt_start_ind_ack_timer(tGATT_TCB *p_tcb)
+{
+    /* start notification cache timer */
+    alarm_set_on_queue(p_tcb->ind_ack_timer, GATT_WAIT_FOR_RSP_TIMEOUT_MS,
+                       gatt_ind_ack_timeout, p_tcb, btu_general_alarm_queue);
+}
+
+/*******************************************************************************
+**
+** Function         gatt_rsp_timeout
+**
+** Description      Called when GATT wait for ATT command response timer expires
+**
+** Returns          void
+**
+*******************************************************************************/
+void gatt_rsp_timeout(void *data)
+{
+    tGATT_CLCB *p_clcb = (tGATT_CLCB *)data;
+
+    if (p_clcb == NULL || p_clcb->p_tcb == NULL)
+    {
+        GATT_TRACE_WARNING("%s clcb is already deleted", __func__);
+        return;
+    }
+    if (p_clcb->operation == GATTC_OPTYPE_DISCOVERY &&
+        p_clcb->op_subtype == GATT_DISC_SRVC_ALL &&
+        p_clcb->retry_count < GATT_REQ_RETRY_LIMIT)
+    {
+        UINT8 rsp_code;
+        GATT_TRACE_WARNING("%s retry discovery primary service", __func__);
+        if (p_clcb != gatt_cmd_dequeue(p_clcb->p_tcb, &rsp_code))
+        {
+            GATT_TRACE_ERROR("%s command queue out of sync, disconnect",
+                             __func__);
+        }
+        else
+        {
+            p_clcb->retry_count++;
+            gatt_act_discovery(p_clcb);
+            return;
+        }
+    }
+
+    GATT_TRACE_WARNING("%s disconnecting...", __func__);
+    gatt_disconnect (p_clcb->p_tcb);
+}
+
+/*******************************************************************************
+**
+** Function         gatt_indication_confirmation_timeout
+**
+** Description      Called when the indication confirmation timer expires
+**
+** Returns          void
+**
+*******************************************************************************/
+void gatt_indication_confirmation_timeout(void *data)
+{
+    tGATT_TCB *p_tcb = (tGATT_TCB *)data;
+
+    GATT_TRACE_WARNING("%s disconnecting...", __func__);
+    gatt_disconnect(p_tcb);
+}
+
+/*******************************************************************************
+**
+** Function         gatt_ind_ack_timeout
+**
+** Description      Called when GATT wait for ATT handle confirmation timeout
+**
+** Returns          void
+**
+*******************************************************************************/
+void gatt_ind_ack_timeout(void *data)
+{
+    tGATT_TCB *p_tcb = (tGATT_TCB *)data;
+
+    GATT_TRACE_WARNING("%s send ack now", __func__);
+
+    if (p_tcb != NULL)
+        p_tcb->ind_count = 0;
+
+    attp_send_cl_msg(p_tcb, 0, GATT_HANDLE_VALUE_CONF, NULL);
+}
+/*******************************************************************************
+**
+** Function         gatt_sr_find_i_rcb_by_handle
+**
+** Description      The function searches for a service that owns a specific handle.
+**
+** Returns          GATT_MAX_SR_PROFILES if not found. Otherwise index of th eservice.
+**
+*******************************************************************************/
+UINT8 gatt_sr_find_i_rcb_by_handle(UINT16 handle)
+{
+    UINT8  i_rcb = 0;
+
+    for ( ; i_rcb < GATT_MAX_SR_PROFILES; i_rcb++)
+    {
+        if (gatt_cb.sr_reg[i_rcb].in_use &&
+            gatt_cb.sr_reg[i_rcb].s_hdl <= handle &&
+            gatt_cb.sr_reg[i_rcb].e_hdl >= handle )
+        {
+            break;
+        }
+    }
+    return i_rcb;
+}
+
+/*******************************************************************************
+**
+** Function         gatt_sr_find_i_rcb_by_handle
+**
+** Description      The function searches for a service that owns a specific handle.
+**
+** Returns          0 if not found. Otherwise index of th eservice.
+**
+*******************************************************************************/
+UINT8 gatt_sr_find_i_rcb_by_app_id(tBT_UUID *p_app_uuid128, tBT_UUID *p_svc_uuid, UINT16 svc_inst)
+{
+    UINT8           i_rcb = 0;
+    tGATT_SR_REG    *p_sreg;
+    tBT_UUID        *p_this_uuid;
+
+    for (i_rcb = 0, p_sreg = gatt_cb.sr_reg; i_rcb < GATT_MAX_SR_PROFILES; i_rcb++, p_sreg++)
+    {
+        if ( p_sreg->in_use )
+        {
+            p_this_uuid = gatts_get_service_uuid (p_sreg->p_db);
+
+            if (p_this_uuid &&
+                gatt_uuid_compare (*p_app_uuid128, p_sreg->app_uuid ) &&
+                gatt_uuid_compare (*p_svc_uuid, *p_this_uuid) &&
+                (svc_inst == p_sreg->service_instance))
+            {
+                GATT_TRACE_ERROR ("Active Service Found ");
+                gatt_dbg_display_uuid(*p_svc_uuid);
+
+                break;
+            }
+        }
+    }
+    return i_rcb;
+}
+/*******************************************************************************
+**
+** Function         gatt_sr_find_i_rcb_by_handle
+**
+** Description      The function searches for a service that owns a specific handle.
+**
+** Returns          0 if not found. Otherwise index of th eservice.
+**
+*******************************************************************************/
+UINT8 gatt_sr_alloc_rcb(tGATT_HDL_LIST_ELEM *p_list )
+{
+    UINT8   ii = 0;
+    tGATT_SR_REG    *p_sreg = NULL;
+
+    /*this is a new application servoce start */
+    for (ii = 0, p_sreg = gatt_cb.sr_reg; ii < GATT_MAX_SR_PROFILES; ii++, p_sreg++)
+    {
+        if (!p_sreg->in_use)
+        {
+            memset (p_sreg, 0, sizeof(tGATT_SR_REG));
+
+            p_sreg->in_use = TRUE;
+            memcpy (&p_sreg->app_uuid, &p_list->asgn_range.app_uuid128, sizeof(tBT_UUID));
+
+            p_sreg->service_instance    = p_list->asgn_range.svc_inst;
+            p_sreg->type                = p_list->asgn_range.is_primary ? GATT_UUID_PRI_SERVICE: GATT_UUID_SEC_SERVICE;
+            p_sreg->s_hdl               = p_list->asgn_range.s_handle;
+            p_sreg->e_hdl               = p_list->asgn_range.e_handle;
+            p_sreg->p_db                = &p_list->svc_db;
+
+            GATT_TRACE_DEBUG("total buffer in db [%d]",
+                             fixed_queue_length(p_sreg->p_db->svc_buffer));
+            break;
+        }
+    }
+
+    return ii;
+}
+/*******************************************************************************
+**
+** Function         gatt_sr_get_sec_info
+**
+** Description      Get the security flag and key size information for the peer
+**                  device.
+**
+** Returns          void
+**
+*******************************************************************************/
+void gatt_sr_get_sec_info(BD_ADDR rem_bda, tBT_TRANSPORT transport, UINT8 *p_sec_flag, UINT8 *p_key_size)
+{
+    UINT8           sec_flag = 0;
+
+    BTM_GetSecurityFlagsByTransport(rem_bda, &sec_flag, transport);
+
+    sec_flag &= (GATT_SEC_FLAG_LKEY_UNAUTHED | GATT_SEC_FLAG_LKEY_AUTHED | GATT_SEC_FLAG_ENCRYPTED);
+
+    *p_key_size = btm_ble_read_sec_key_size(rem_bda);
+    *p_sec_flag = sec_flag;
+}
+/*******************************************************************************
+**
+** Function         gatt_sr_send_req_callback
+**
+** Description
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void gatt_sr_send_req_callback(UINT16 conn_id,
+                               UINT32 trans_id,
+                               tGATTS_REQ_TYPE type, tGATTS_DATA *p_data)
+{
+    tGATT_IF        gatt_if = GATT_GET_GATT_IF(conn_id);
+    tGATT_REG       *p_reg = gatt_get_regcb(gatt_if);
+
+    if (!p_reg )
+    {
+        GATT_TRACE_ERROR ("p_reg not found discard request");
+        return;
+    }
+
+    if ( p_reg->in_use &&
+         p_reg->app_cb.p_req_cb)
+    {
+        (*p_reg->app_cb.p_req_cb)(conn_id, trans_id, type, p_data);
+    }
+    else
+    {
+        GATT_TRACE_WARNING("Call back not found for application conn_id=%d", conn_id);
+    }
+
+}
+
+/*******************************************************************************
+**
+** Function         gatt_send_error_rsp
+**
+** Description      This function sends an error response.
+**
+** Returns          void
+**
+*******************************************************************************/
+tGATT_STATUS gatt_send_error_rsp (tGATT_TCB *p_tcb, UINT8 err_code, UINT8 op_code,
+                                  UINT16 handle, BOOLEAN deq)
+{
+    tGATT_ERROR      error;
+    tGATT_STATUS     status;
+    BT_HDR           *p_buf;
+
+    error.cmd_code = op_code;
+    error.reason = err_code;
+    error.handle =handle;
+
+    if ((p_buf = attp_build_sr_msg(p_tcb, GATT_RSP_ERROR, (tGATT_SR_MSG *)&error)) != NULL)
+    {
+        status = attp_send_sr_msg (p_tcb, p_buf);
+    }
+    else
+        status = GATT_INSUF_RESOURCE;
+
+    if (deq)
+        gatt_dequeue_sr_cmd(p_tcb);
+
+    return status;
+}
+
+
+/*******************************************************************************
+**
+** Function         gatt_add_sdp_record
+**
+** Description      This function add a SDP record for a GATT primary service
+**
+** Returns          0 if error else sdp handle for the record.
+**
+*******************************************************************************/
+UINT32 gatt_add_sdp_record (tBT_UUID *p_uuid, UINT16 start_hdl, UINT16 end_hdl)
+{
+    tSDP_PROTOCOL_ELEM  proto_elem_list[2];
+    UINT32              sdp_handle;
+    UINT16              list = UUID_SERVCLASS_PUBLIC_BROWSE_GROUP;
+    UINT8               buff[60];
+    UINT8               *p = buff;
+
+    GATT_TRACE_DEBUG("gatt_add_sdp_record s_hdl=0x%x  s_hdl=0x%x",start_hdl, end_hdl);
+
+    if ((sdp_handle = SDP_CreateRecord()) == 0)
+        return 0;
+
+    switch (p_uuid->len)
+    {
+        case LEN_UUID_16:
+            SDP_AddServiceClassIdList(sdp_handle, 1, &p_uuid->uu.uuid16);
+            break;
+
+        case LEN_UUID_32:
+            UINT8_TO_BE_STREAM (p, (UUID_DESC_TYPE << 3) | SIZE_FOUR_BYTES);
+            UINT32_TO_BE_STREAM (p, p_uuid->uu.uuid32);
+            SDP_AddAttribute (sdp_handle, ATTR_ID_SERVICE_CLASS_ID_LIST, DATA_ELE_SEQ_DESC_TYPE,
+                              (UINT32) (p - buff), buff);
+            break;
+
+        case LEN_UUID_128:
+            UINT8_TO_BE_STREAM (p, (UUID_DESC_TYPE << 3) | SIZE_SIXTEEN_BYTES);
+            ARRAY_TO_BE_STREAM_REVERSE (p, p_uuid->uu.uuid128, LEN_UUID_128);
+            SDP_AddAttribute (sdp_handle, ATTR_ID_SERVICE_CLASS_ID_LIST, DATA_ELE_SEQ_DESC_TYPE,
+                              (UINT32) (p - buff), buff);
+            break;
+
+        default:
+            GATT_TRACE_ERROR("inavlid UUID len=%d", p_uuid->len);
+            SDP_DeleteRecord(sdp_handle);
+            return 0;
+            break;
+    }
+
+    /*** Fill out the protocol element sequence for SDP ***/
+    proto_elem_list[0].protocol_uuid = UUID_PROTOCOL_L2CAP;
+    proto_elem_list[0].num_params    = 1;
+    proto_elem_list[0].params[0]     = BT_PSM_ATT;
+    proto_elem_list[1].protocol_uuid = UUID_PROTOCOL_ATT;
+    proto_elem_list[1].num_params    = 2;
+    proto_elem_list[1].params[0]     = start_hdl;
+    proto_elem_list[1].params[1]     = end_hdl;
+
+    SDP_AddProtocolList(sdp_handle, 2, proto_elem_list);
+
+    /* Make the service browseable */
+    SDP_AddUuidSequence (sdp_handle, ATTR_ID_BROWSE_GROUP_LIST, 1, &list);
+
+    return(sdp_handle);
+}
+
+
+    #if GATT_CONFORMANCE_TESTING == TRUE
+/*******************************************************************************
+**
+** Function         gatt_set_err_rsp
+**
+** Description      This function is called to set the test confirm value
+**
+** Returns          void
+**
+*******************************************************************************/
+void gatt_set_err_rsp(BOOLEAN enable, UINT8 req_op_code, UINT8 err_status)
+{
+    GATT_TRACE_DEBUG("gatt_set_err_rsp enable=%d op_code=%d, err_status=%d", enable, req_op_code, err_status);
+    gatt_cb.enable_err_rsp  = enable;
+    gatt_cb.req_op_code     = req_op_code;
+    gatt_cb.err_status      = err_status;
+}
+    #endif
+
+
+
+/*******************************************************************************
+**
+** Function         gatt_get_regcb
+**
+** Description      The function returns the registration control block.
+**
+** Returns          pointer to the registration control block or NULL
+**
+*******************************************************************************/
+tGATT_REG *gatt_get_regcb (tGATT_IF gatt_if)
+{
+    UINT8           ii = (UINT8)gatt_if;
+    tGATT_REG       *p_reg = NULL;
+
+    if (ii < 1 || ii > GATT_MAX_APPS) {
+        GATT_TRACE_WARNING("gatt_if out of range [ = %d]", ii);
+        return NULL;
+    }
+
+    // Index for cl_rcb is always 1 less than gatt_if.
+    p_reg = &gatt_cb.cl_rcb[ii - 1];
+
+    if (!p_reg->in_use) {
+        GATT_TRACE_WARNING("gatt_if found but not in use.");
+        return NULL;
+    }
+
+    return p_reg;
+}
+
+
+/*******************************************************************************
+**
+** Function         gatt_is_clcb_allocated
+**
+** Description      The function check clcb for conn_id is allocated or not
+**
+** Returns           True already allocated
+**
+*******************************************************************************/
+
+BOOLEAN gatt_is_clcb_allocated (UINT16 conn_id)
+{
+    UINT8         i = 0;
+    BOOLEAN       is_allocated= FALSE;
+
+    for (i = 0; i < GATT_CL_MAX_LCB; i++)
+    {
+        if (gatt_cb.clcb[i].in_use && (gatt_cb.clcb[i].conn_id == conn_id))
+        {
+            is_allocated = TRUE;
+            break;
+        }
+    }
+
+    return is_allocated;
+}
+
+/*******************************************************************************
+**
+** Function         gatt_clcb_alloc
+**
+** Description      The function allocates a GATT  connection link control block
+**
+** Returns           NULL if not found. Otherwise pointer to the connection link block.
+**
+*******************************************************************************/
+tGATT_CLCB *gatt_clcb_alloc (UINT16 conn_id)
+{
+    UINT8           i = 0;
+    tGATT_CLCB      *p_clcb = NULL;
+    tGATT_IF        gatt_if=GATT_GET_GATT_IF(conn_id);
+    UINT8           tcb_idx = GATT_GET_TCB_IDX(conn_id);
+    tGATT_TCB       *p_tcb = gatt_get_tcb_by_idx(tcb_idx);
+    tGATT_REG       *p_reg = gatt_get_regcb(gatt_if);
+
+    for (i = 0; i < GATT_CL_MAX_LCB; i++)
+    {
+        if (!gatt_cb.clcb[i].in_use)
+        {
+            p_clcb = &gatt_cb.clcb[i];
+
+            p_clcb->in_use      = TRUE;
+            p_clcb->conn_id     = conn_id;
+            p_clcb->clcb_idx    = i;
+            p_clcb->p_reg       = p_reg;
+            p_clcb->p_tcb       = p_tcb;
+            break;
+        }
+    }
+    return p_clcb;
+}
+
+/*******************************************************************************
+**
+** Function         gatt_clcb_dealloc
+**
+** Description      The function de allocates a GATT  connection link control block
+**
+** Returns         None
+**
+*******************************************************************************/
+void gatt_clcb_dealloc (tGATT_CLCB *p_clcb)
+{
+    if (p_clcb && p_clcb->in_use)
+    {
+        alarm_free(p_clcb->gatt_rsp_timer_ent);
+        memset(p_clcb, 0, sizeof(tGATT_CLCB));
+    }
+}
+
+
+
+/*******************************************************************************
+**
+** Function         gatt_find_tcb_by_cid
+**
+** Description      The function searches for an empty entry
+**                   in registration info table for GATT client
+**
+** Returns           NULL if not found. Otherwise pointer to the rcb.
+**
+*******************************************************************************/
+tGATT_TCB * gatt_find_tcb_by_cid (UINT16 lcid)
+{
+    UINT16       xx = 0;
+    tGATT_TCB    *p_tcb = NULL;
+
+    for (xx = 0; xx < GATT_MAX_PHY_CHANNEL; xx++)
+    {
+        if (gatt_cb.tcb[xx].in_use && gatt_cb.tcb[xx].att_lcid == lcid)
+        {
+            p_tcb = &gatt_cb.tcb[xx];
+            break;
+        }
+    }
+    return p_tcb;
+}
+
+
+/*******************************************************************************
+**
+** Function         gatt_num_apps_hold_link
+**
+** Description      The function find the number of applcaitions is holding the link
+**
+** Returns          total number of applications holding this acl link.
+**
+*******************************************************************************/
+UINT8 gatt_num_apps_hold_link(tGATT_TCB *p_tcb)
+{
+    UINT8 i, num = 0;
+
+    for (i = 0; i < GATT_MAX_APPS; i ++)
+    {
+        if (p_tcb->app_hold_link[i])
+            num ++;
+    }
+
+    GATT_TRACE_DEBUG("gatt_num_apps_hold_link   num=%d",  num);
+    return num;
+}
+
+
+/*******************************************************************************
+**
+** Function         gatt_num_clcb_by_bd_addr
+**
+** Description      The function searches all LCB with macthing bd address
+**
+** Returns          total number of clcb found.
+**
+*******************************************************************************/
+UINT8 gatt_num_clcb_by_bd_addr(BD_ADDR bda)
+{
+    UINT8 i, num = 0;
+
+    for (i = 0; i < GATT_CL_MAX_LCB; i ++)
+    {
+        if (gatt_cb.clcb[i].in_use && memcmp(gatt_cb.clcb[i].p_tcb->peer_bda, bda, BD_ADDR_LEN) == 0)
+            num ++;
+    }
+    return num;
+}
+
+/*******************************************************************************
+**
+** Function         gatt_sr_update_cback_cnt
+**
+** Description      The function searches all LCB with macthing bd address
+**
+** Returns          total number of clcb found.
+**
+*******************************************************************************/
+void gatt_sr_copy_prep_cnt_to_cback_cnt(tGATT_TCB *p_tcb )
+{
+    UINT8 i;
+
+    if (p_tcb)
+    {
+        for (i = 0; i < GATT_MAX_APPS; i ++)
+        {
+            if (p_tcb->prep_cnt[i])
+            {
+                p_tcb->sr_cmd.cback_cnt[i]=1;
+            }
+        }
+    }
+
+}
+
+/*******************************************************************************
+**
+** Function         gatt_sr_is_cback_cnt_zero
+**
+** Description      The function searches all LCB with macthing bd address
+**
+** Returns          True if thetotal application callback count is zero
+**
+*******************************************************************************/
+BOOLEAN gatt_sr_is_cback_cnt_zero(tGATT_TCB *p_tcb )
+{
+    BOOLEAN status = TRUE;
+    UINT8   i;
+
+    if (p_tcb)
+    {
+        for (i = 0; i < GATT_MAX_APPS; i ++)
+        {
+            if (p_tcb->sr_cmd.cback_cnt[i])
+            {
+                status = FALSE;
+                break;
+            }
+        }
+    }
+    else
+    {
+        status = FALSE;
+    }
+    return status;
+}
+
+/*******************************************************************************
+**
+** Function         gatt_sr_is_prep_cnt_zero
+**
+** Description      Check the prepare write request count is zero or not
+**
+** Returns          True no prepare write request
+**
+*******************************************************************************/
+BOOLEAN gatt_sr_is_prep_cnt_zero(tGATT_TCB *p_tcb)
+{
+    BOOLEAN status = TRUE;
+    UINT8   i;
+
+    if (p_tcb)
+    {
+        for (i = 0; i < GATT_MAX_APPS; i ++)
+        {
+            if (p_tcb->prep_cnt[i])
+            {
+                status = FALSE;
+                break;
+            }
+        }
+    }
+    else
+    {
+        status = FALSE;
+    }
+    return status;
+}
+
+
+/*******************************************************************************
+**
+** Function         gatt_sr_reset_cback_cnt
+**
+** Description      Reset the application callback count to zero
+**
+** Returns         None
+**
+*******************************************************************************/
+void gatt_sr_reset_cback_cnt(tGATT_TCB *p_tcb )
+{
+    UINT8 i;
+
+    if (p_tcb)
+    {
+        for (i = 0; i < GATT_MAX_APPS; i ++)
+        {
+            p_tcb->sr_cmd.cback_cnt[i]=0;
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         gatt_sr_reset_prep_cnt
+**
+** Description     Reset the prep write count to zero
+**
+** Returns        None
+**
+*******************************************************************************/
+void gatt_sr_reset_prep_cnt(tGATT_TCB *p_tcb )
+{
+    UINT8 i;
+    if (p_tcb)
+    {
+        for (i = 0; i < GATT_MAX_APPS; i ++)
+        {
+            p_tcb->prep_cnt[i]=0;
+        }
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         gatt_sr_update_cback_cnt
+**
+** Description    Update the teh applicaiton callback count
+**
+** Returns           None
+**
+*******************************************************************************/
+void gatt_sr_update_cback_cnt(tGATT_TCB *p_tcb, tGATT_IF gatt_if, BOOLEAN is_inc, BOOLEAN is_reset_first)
+{
+
+    UINT8 idx = ((UINT8) gatt_if) - 1 ;
+
+    if (p_tcb)
+    {
+        if (is_reset_first)
+        {
+            gatt_sr_reset_cback_cnt(p_tcb);
+        }
+        if (is_inc)
+        {
+            p_tcb->sr_cmd.cback_cnt[idx]++;
+        }
+        else
+        {
+            if ( p_tcb->sr_cmd.cback_cnt[idx])
+            {
+                p_tcb->sr_cmd.cback_cnt[idx]--;
+            }
+        }
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         gatt_sr_update_prep_cnt
+**
+** Description    Update the teh prepare write request count
+**
+** Returns           None
+**
+*******************************************************************************/
+void gatt_sr_update_prep_cnt(tGATT_TCB *p_tcb, tGATT_IF gatt_if, BOOLEAN is_inc, BOOLEAN is_reset_first)
+{
+    UINT8 idx = ((UINT8) gatt_if) - 1 ;
+
+    GATT_TRACE_DEBUG("gatt_sr_update_prep_cnt tcb idx=%d gatt_if=%d is_inc=%d is_reset_first=%d",
+                      p_tcb->tcb_idx, gatt_if, is_inc, is_reset_first);
+
+    if (p_tcb)
+    {
+        if (is_reset_first)
+        {
+            gatt_sr_reset_prep_cnt(p_tcb);
+        }
+        if (is_inc)
+        {
+            p_tcb->prep_cnt[idx]++;
+        }
+        else
+        {
+            if (p_tcb->prep_cnt[idx])
+            {
+                p_tcb->prep_cnt[idx]--;
+            }
+        }
+    }
+}
+/*******************************************************************************
+**
+** Function         gatt_cancel_open
+**
+** Description      Cancel open request
+**
+** Returns         Boolean
+**
+*******************************************************************************/
+BOOLEAN gatt_cancel_open(tGATT_IF gatt_if, BD_ADDR bda)
+{
+    tGATT_TCB *p_tcb=NULL;
+    BOOLEAN status= TRUE;
+
+    p_tcb = gatt_find_tcb_by_addr(bda, BT_TRANSPORT_LE);
+
+    if (p_tcb)
+    {
+        if (gatt_get_ch_state(p_tcb) == GATT_CH_OPEN)
+        {
+            GATT_TRACE_ERROR("GATT_CancelConnect - link connected Too late to cancel");
+            status = FALSE;
+        }
+        else
+        {
+            gatt_update_app_use_link_flag(gatt_if, p_tcb, FALSE, FALSE);
+            if (!gatt_num_apps_hold_link(p_tcb))
+            {
+                gatt_disconnect(p_tcb);
+            }
+        }
+    }
+
+    return status;
+}
+
+/*******************************************************************************
+**
+** Function         gatt_find_app_hold_link
+**
+** Description      find the applicaiton that is holding the specified link
+**
+** Returns         Boolean
+**
+*******************************************************************************/
+BOOLEAN gatt_find_app_hold_link(tGATT_TCB *p_tcb, UINT8 start_idx, UINT8 *p_found_idx, tGATT_IF *p_gatt_if)
+{
+    UINT8 i;
+    BOOLEAN found= FALSE;
+
+    for (i = start_idx; i < GATT_MAX_APPS; i ++)
+    {
+        if (p_tcb->app_hold_link[i])
+        {
+            *p_gatt_if = gatt_cb.clcb[i].p_reg->gatt_if;
+            *p_found_idx = i;
+            found = TRUE;
+            break;
+        }
+    }
+    return found;
+}
+
+/*******************************************************************************
+**
+** Function         gatt_cmd_enq
+**
+** Description      Enqueue this command.
+**
+** Returns          None.
+**
+*******************************************************************************/
+BOOLEAN gatt_cmd_enq(tGATT_TCB *p_tcb, UINT16 clcb_idx, BOOLEAN to_send, UINT8 op_code, BT_HDR *p_buf)
+{
+    tGATT_CMD_Q  *p_cmd = &p_tcb->cl_cmd_q[p_tcb->next_slot_inq];
+
+    p_cmd->to_send = to_send; /* waiting to be sent */
+    p_cmd->op_code  = op_code;
+    p_cmd->p_cmd    = p_buf;
+    p_cmd->clcb_idx = clcb_idx;
+
+    if (!to_send)
+    {
+        p_tcb->pending_cl_req = p_tcb->next_slot_inq;
+    }
+
+    p_tcb->next_slot_inq ++;
+    p_tcb->next_slot_inq %= GATT_CL_MAX_LCB;
+
+    return TRUE;
+}
+
+/*******************************************************************************
+**
+** Function         gatt_cmd_dequeue
+**
+** Description      dequeue the command in the client CCB command queue.
+**
+** Returns          total number of clcb found.
+**
+*******************************************************************************/
+tGATT_CLCB * gatt_cmd_dequeue(tGATT_TCB *p_tcb, UINT8 *p_op_code)
+{
+    tGATT_CMD_Q  *p_cmd = &p_tcb->cl_cmd_q[p_tcb->pending_cl_req];
+    tGATT_CLCB *p_clcb = NULL;
+
+    if (p_tcb->pending_cl_req != p_tcb->next_slot_inq)
+    {
+        p_clcb = &gatt_cb.clcb[p_cmd->clcb_idx];
+
+        *p_op_code = p_cmd->op_code;
+
+        p_tcb->pending_cl_req ++;
+        p_tcb->pending_cl_req %= GATT_CL_MAX_LCB;
+    }
+
+    return p_clcb;
+}
+
+/*******************************************************************************
+**
+** Function         gatt_send_write_msg
+**
+** Description      This real function send out the ATT message for write.
+**
+** Returns          status code
+**
+*******************************************************************************/
+UINT8 gatt_send_write_msg (tGATT_TCB *p_tcb, UINT16 clcb_idx, UINT8 op_code,
+                           UINT16 handle, UINT16 len,
+                           UINT16 offset, UINT8 *p_data)
+{
+    tGATT_CL_MSG     msg;
+
+    msg.attr_value.handle = handle;
+    msg.attr_value.len = len;
+    msg.attr_value.offset = offset;
+
+    memcpy (msg.attr_value.value, p_data, len);
+
+    /* write by handle */
+    return attp_send_cl_msg(p_tcb, clcb_idx, op_code, &msg);
+}
+
+/*******************************************************************************
+**
+** Function         gatt_act_send_browse
+**
+** Description      This function ends a browse command request, including read
+**                  information request and read by type request.
+**
+** Returns          status code
+**
+*******************************************************************************/
+UINT8 gatt_act_send_browse(tGATT_TCB *p_tcb, UINT16 index, UINT8 op, UINT16 s_handle,
+                           UINT16 e_handle, tBT_UUID uuid)
+{
+    tGATT_CL_MSG     msg;
+
+    msg.browse.s_handle = s_handle;
+    msg.browse.e_handle   = e_handle;
+    memcpy(&msg.browse.uuid, &uuid, sizeof(tBT_UUID));
+
+    /* write by handle */
+    return attp_send_cl_msg(p_tcb, index, op, &msg);
+}
+
+/*******************************************************************************
+**
+** Function         gatt_end_operation
+**
+** Description      This function ends a discovery, send callback and finalize
+**                  some control value.
+**
+** Returns          16 bits uuid.
+**
+*******************************************************************************/
+void gatt_end_operation(tGATT_CLCB *p_clcb, tGATT_STATUS status, void *p_data)
+{
+    tGATT_CL_COMPLETE   cb_data;
+    tGATT_CMPL_CBACK    *p_cmpl_cb = (p_clcb->p_reg) ? p_clcb->p_reg->app_cb.p_cmpl_cb : NULL;
+    UINT8               op = p_clcb->operation, disc_type=GATT_DISC_MAX;
+    tGATT_DISC_CMPL_CB  *p_disc_cmpl_cb = (p_clcb->p_reg) ? p_clcb->p_reg->app_cb.p_disc_cmpl_cb : NULL;
+    UINT16              conn_id;
+    UINT8               operation;
+
+    GATT_TRACE_DEBUG ("gatt_end_operation status=%d op=%d subtype=%d",
+                       status, p_clcb->operation, p_clcb->op_subtype);
+    memset(&cb_data.att_value, 0, sizeof(tGATT_VALUE));
+
+    if (p_cmpl_cb != NULL && p_clcb->operation != 0)
+    {
+        if (p_clcb->operation == GATTC_OPTYPE_READ)
+        {
+            cb_data.att_value.handle   = p_clcb->s_handle;
+            cb_data.att_value.len      = p_clcb->counter;
+
+            if (p_data && p_clcb->counter)
+                memcpy (cb_data.att_value.value, p_data, cb_data.att_value.len);
+        }
+
+        if (p_clcb->operation == GATTC_OPTYPE_WRITE)
+        {
+            memset(&cb_data.att_value, 0, sizeof(tGATT_VALUE));
+            cb_data.handle           =
+            cb_data.att_value.handle = p_clcb->s_handle;
+            if (p_clcb->op_subtype == GATT_WRITE_PREPARE)
+            {
+                if (p_data)
+                {
+                    cb_data.att_value = *((tGATT_VALUE *) p_data);
+                }
+                else
+                {
+                    GATT_TRACE_DEBUG("Rcv Prepare write rsp but no data");
+                }
+            }
+        }
+
+        if (p_clcb->operation == GATTC_OPTYPE_CONFIG)
+            cb_data.mtu = p_clcb->p_tcb->payload_size;
+
+        if (p_clcb->operation == GATTC_OPTYPE_DISCOVERY)
+        {
+            disc_type = p_clcb->op_subtype;
+        }
+    }
+
+    osi_free_and_reset((void **)&p_clcb->p_attr_buf);
+
+    operation =  p_clcb->operation;
+    conn_id = p_clcb->conn_id;
+    alarm_cancel(p_clcb->gatt_rsp_timer_ent);
+
+    gatt_clcb_dealloc(p_clcb);
+
+    if (p_disc_cmpl_cb && (op == GATTC_OPTYPE_DISCOVERY))
+        (*p_disc_cmpl_cb)(conn_id, disc_type, status);
+    else if (p_cmpl_cb && op)
+        (*p_cmpl_cb)(conn_id, op, status, &cb_data);
+    else
+        GATT_TRACE_WARNING ("gatt_end_operation not sent out op=%d p_disc_cmpl_cb:%p p_cmpl_cb:%p",
+                             operation, p_disc_cmpl_cb, p_cmpl_cb);
+}
+
+/*******************************************************************************
+**
+** Function         gatt_cleanup_upon_disc
+**
+** Description      This function cleans up the control blocks when L2CAP channel
+**                  disconnect.
+**
+** Returns          16 bits uuid.
+**
+*******************************************************************************/
+void gatt_cleanup_upon_disc(BD_ADDR bda, UINT16 reason, tBT_TRANSPORT transport)
+{
+    tGATT_TCB       *p_tcb = NULL;
+    tGATT_CLCB      *p_clcb;
+    UINT8           i;
+    UINT16          conn_id;
+    tGATT_REG        *p_reg=NULL;
+
+
+    GATT_TRACE_DEBUG ("gatt_cleanup_upon_disc ");
+
+    if ((p_tcb = gatt_find_tcb_by_addr(bda, transport)) != NULL)
+    {
+        GATT_TRACE_DEBUG ("found p_tcb ");
+        gatt_set_ch_state(p_tcb, GATT_CH_CLOSE);
+        for (i = 0; i < GATT_CL_MAX_LCB; i ++)
+        {
+            p_clcb = &gatt_cb.clcb[i];
+            if (p_clcb->in_use && p_clcb->p_tcb == p_tcb)
+            {
+                alarm_cancel(p_clcb->gatt_rsp_timer_ent);
+                GATT_TRACE_DEBUG ("found p_clcb conn_id=%d clcb_idx=%d", p_clcb->conn_id, p_clcb->clcb_idx);
+                if (p_clcb->operation != GATTC_OPTYPE_NONE)
+                    gatt_end_operation(p_clcb, GATT_ERROR, NULL);
+
+                gatt_clcb_dealloc(p_clcb);
+
+            }
+        }
+
+        alarm_free(p_tcb->ind_ack_timer);
+        p_tcb->ind_ack_timer = NULL;
+        alarm_free(p_tcb->conf_timer);
+        p_tcb->conf_timer = NULL;
+        gatt_free_pending_ind(p_tcb);
+        gatt_free_pending_enc_queue(p_tcb);
+        fixed_queue_free(p_tcb->sr_cmd.multi_rsp_q, NULL);
+        p_tcb->sr_cmd.multi_rsp_q = NULL;
+
+        for (i = 0; i < GATT_MAX_APPS; i ++)
+        {
+            p_reg = &gatt_cb.cl_rcb[i];
+            if (p_reg->in_use && p_reg->app_cb.p_conn_cb)
+            {
+                conn_id = GATT_CREATE_CONN_ID(p_tcb->tcb_idx, p_reg->gatt_if);
+                GATT_TRACE_DEBUG ("found p_reg tcb_idx=%d gatt_if=%d  conn_id=0x%x", p_tcb->tcb_idx, p_reg->gatt_if, conn_id);
+                (*p_reg->app_cb.p_conn_cb)(p_reg->gatt_if,  bda, conn_id, FALSE, reason, transport);
+            }
+        }
+        memset(p_tcb, 0, sizeof(tGATT_TCB));
+
+    }
+    GATT_TRACE_DEBUG ("exit gatt_cleanup_upon_disc ");
+}
+/*******************************************************************************
+**
+** Function         gatt_dbg_req_op_name
+**
+** Description      Get op code description name, for debug information.
+**
+** Returns          UINT8 *: name of the operation.
+**
+*******************************************************************************/
+UINT8 * gatt_dbg_op_name(UINT8 op_code)
+{
+    UINT8 pseduo_op_code_idx = op_code & (~GATT_WRITE_CMD_MASK);
+
+    if (op_code == GATT_CMD_WRITE )
+    {
+        pseduo_op_code_idx = 0x14; /* just an index to op_code_name */
+
+    }
+
+    if (op_code == GATT_SIGN_CMD_WRITE)
+    {
+        pseduo_op_code_idx = 0x15; /* just an index to op_code_name */
+    }
+
+    if (pseduo_op_code_idx <= GATT_OP_CODE_MAX)
+        return(UINT8*) op_code_name[pseduo_op_code_idx];
+    else
+        return(UINT8 *)"Op Code Exceed Max";
+}
+
+/*******************************************************************************
+**
+** Function         gatt_dbg_display_uuid
+**
+** Description      Disaplay the UUID
+**
+** Returns          None
+**
+*******************************************************************************/
+void gatt_dbg_display_uuid(tBT_UUID bt_uuid)
+{
+    char str_buf[50];
+    int x = 0;
+
+    if (bt_uuid.len == LEN_UUID_16)
+    {
+        sprintf(str_buf, "0x%04x", bt_uuid.uu.uuid16);
+    }
+    else if (bt_uuid.len == LEN_UUID_32)
+    {
+        sprintf(str_buf, "0x%08x", (unsigned int)bt_uuid.uu.uuid32);
+    }
+    else if (bt_uuid.len == LEN_UUID_128)
+    {
+        x += sprintf(&str_buf[x], "0x%02x%02x%02x%02x%02x%02x%02x%02x",
+                     bt_uuid.uu.uuid128[15], bt_uuid.uu.uuid128[14],
+                     bt_uuid.uu.uuid128[13], bt_uuid.uu.uuid128[12],
+                     bt_uuid.uu.uuid128[11], bt_uuid.uu.uuid128[10],
+                     bt_uuid.uu.uuid128[9], bt_uuid.uu.uuid128[8]);
+        sprintf(&str_buf[x], "%02x%02x%02x%02x%02x%02x%02x%02x",
+                bt_uuid.uu.uuid128[7], bt_uuid.uu.uuid128[6],
+                bt_uuid.uu.uuid128[5], bt_uuid.uu.uuid128[4],
+                bt_uuid.uu.uuid128[3], bt_uuid.uu.uuid128[2],
+                bt_uuid.uu.uuid128[1], bt_uuid.uu.uuid128[0]);
+    }
+    else
+        strlcpy(str_buf, "Unknown UUID 0", sizeof(str_buf));
+
+    GATT_TRACE_DEBUG ("UUID=[%s]", str_buf);
+}
+
+
+/*******************************************************************************
+**
+** Function         gatt_is_bg_dev_for_app
+**
+** Description      find is this one of the background devices for the application
+**
+** Returns          TRUE this is one of the background devices for the  application
+**
+*******************************************************************************/
+BOOLEAN gatt_is_bg_dev_for_app(tGATT_BG_CONN_DEV *p_dev, tGATT_IF gatt_if)
+{
+    UINT8   i;
+
+    for (i = 0; i < GATT_MAX_APPS; i ++ )
+    {
+        if (p_dev->in_use && (p_dev->gatt_if[i] == gatt_if))
+        {
+            return TRUE;
+        }
+    }
+    return FALSE;
+}
+/*******************************************************************************
+**
+** Function         gatt_find_bg_dev
+**
+** Description      find background connection device from the list.
+**
+** Returns          pointer to the device record
+**
+*******************************************************************************/
+tGATT_BG_CONN_DEV * gatt_find_bg_dev(BD_ADDR remote_bda)
+{
+    tGATT_BG_CONN_DEV    *p_dev_list = &gatt_cb.bgconn_dev[0];
+    UINT8   i;
+
+    for (i = 0; i < GATT_MAX_BG_CONN_DEV; i ++, p_dev_list ++)
+    {
+        if (p_dev_list->in_use && !memcmp(p_dev_list->remote_bda, remote_bda, BD_ADDR_LEN))
+        {
+            return p_dev_list;
+        }
+    }
+    return NULL;
+}
+/*******************************************************************************
+**
+** Function         gatt_alloc_bg_dev
+**
+** Description      allocate a background connection device record
+**
+** Returns          pointer to the device record
+**
+*******************************************************************************/
+tGATT_BG_CONN_DEV * gatt_alloc_bg_dev(BD_ADDR remote_bda)
+{
+    tGATT_BG_CONN_DEV    *p_dev_list = &gatt_cb.bgconn_dev[0];
+    UINT8   i;
+
+    for (i = 0; i < GATT_MAX_BG_CONN_DEV; i ++, p_dev_list ++)
+    {
+        if (!p_dev_list->in_use)
+        {
+            p_dev_list->in_use = TRUE;
+            memcpy(p_dev_list->remote_bda, remote_bda, BD_ADDR_LEN);
+
+            return p_dev_list;
+        }
+    }
+    return NULL;
+}
+
+/*******************************************************************************
+**
+** Function         gatt_add_bg_dev_list
+**
+** Description      add/remove device from the back ground connection device list
+**
+** Returns          TRUE if device added to the list; FALSE failed
+**
+*******************************************************************************/
+BOOLEAN gatt_add_bg_dev_list(tGATT_REG *p_reg,  BD_ADDR bd_addr, BOOLEAN is_initator)
+{
+    tGATT_IF gatt_if =  p_reg->gatt_if;
+    tGATT_BG_CONN_DEV   *p_dev = NULL;
+    UINT8       i;
+    BOOLEAN      ret = FALSE;
+
+    if ((p_dev = gatt_find_bg_dev(bd_addr)) == NULL)
+    {
+        p_dev = gatt_alloc_bg_dev(bd_addr);
+    }
+
+    if (p_dev)
+    {
+        for (i = 0; i < GATT_MAX_APPS; i ++)
+        {
+            if (is_initator)
+            {
+                if (p_dev->gatt_if[i] == gatt_if)
+                {
+                    GATT_TRACE_ERROR("device already in iniator white list");
+                    return TRUE;
+                }
+                else if (p_dev->gatt_if[i] == 0)
+                {
+                    p_dev->gatt_if[i] = gatt_if;
+                    if (i == 0)
+                        ret = BTM_BleUpdateBgConnDev(TRUE, bd_addr);
+                    else
+                        ret = TRUE;
+                    break;
+                }
+            }
+            else
+            {
+                if (p_dev->listen_gif[i] == gatt_if)
+                {
+                    GATT_TRACE_ERROR("device already in adv white list");
+                    return TRUE;
+                }
+                else if (p_dev->listen_gif[i] == 0)
+                {
+                    if (p_reg->listening == GATT_LISTEN_TO_ALL)
+                        p_reg->listening = GATT_LISTEN_TO_NONE;
+
+                    p_reg->listening ++;
+                    p_dev->listen_gif[i] = gatt_if;
+
+                    if (i == 0)
+                        ret = BTM_BleUpdateAdvWhitelist(TRUE, bd_addr);
+                    else
+                        ret = TRUE;
+                    break;
+                }
+            }
+        }
+    }
+    else
+    {
+        GATT_TRACE_ERROR("no device record available");
+    }
+
+    return ret;
+}
+
+/*******************************************************************************
+**
+** Function         gatt_remove_bg_dev_for_app
+**
+** Description      Remove the application interface for the specified background device
+**
+** Returns          Boolean
+**
+*******************************************************************************/
+BOOLEAN gatt_remove_bg_dev_for_app(tGATT_IF gatt_if, BD_ADDR bd_addr)
+{
+    tGATT_TCB    *p_tcb = gatt_find_tcb_by_addr(bd_addr, BT_TRANSPORT_LE);
+    BOOLEAN       status;
+
+    if (p_tcb)
+        gatt_update_app_use_link_flag(gatt_if, p_tcb, FALSE, FALSE);
+    status = gatt_update_auto_connect_dev(gatt_if, FALSE, bd_addr, TRUE);
+    return status;
+}
+
+
+/*******************************************************************************
+**
+** Function         gatt_get_num_apps_for_bg_dev
+**
+** Description      Gte the number of applciations for the specified background device
+**
+** Returns          UINT8 total number fo applications
+**
+*******************************************************************************/
+UINT8 gatt_get_num_apps_for_bg_dev(BD_ADDR bd_addr)
+{
+    tGATT_BG_CONN_DEV   *p_dev = NULL;
+    UINT8   i;
+    UINT8   cnt = 0;
+
+    if ((p_dev = gatt_find_bg_dev(bd_addr)) != NULL)
+    {
+        for (i = 0; i < GATT_MAX_APPS; i ++)
+        {
+            if (p_dev->gatt_if[i])
+                cnt++;
+        }
+    }
+    return cnt;
+}
+
+/*******************************************************************************
+**
+** Function         gatt_find_app_for_bg_dev
+**
+** Description      find the application interface for the specified background device
+**
+** Returns          Boolean
+**
+*******************************************************************************/
+BOOLEAN gatt_find_app_for_bg_dev(BD_ADDR bd_addr, tGATT_IF *p_gatt_if)
+{
+    tGATT_BG_CONN_DEV   *p_dev = NULL;
+    UINT8   i;
+    BOOLEAN ret = FALSE;
+
+    if ((p_dev = gatt_find_bg_dev(bd_addr)) == NULL)
+    {
+        return ret;
+    }
+
+    for (i = 0; i < GATT_MAX_APPS; i ++)
+    {
+        if (p_dev->gatt_if[i] != 0 )
+        {
+            *p_gatt_if = p_dev->gatt_if[i];
+            ret = TRUE;
+            break;
+        }
+    }
+    return ret;
+}
+
+
+/*******************************************************************************
+**
+** Function         gatt_remove_bg_dev_from_list
+**
+** Description      add/remove device from the back ground connection device list or
+**                  listening to advertising list.
+**
+** Returns          pointer to the device record
+**
+*******************************************************************************/
+BOOLEAN gatt_remove_bg_dev_from_list(tGATT_REG *p_reg, BD_ADDR bd_addr, BOOLEAN is_initiator)
+{
+    tGATT_IF gatt_if = p_reg->gatt_if;
+    tGATT_BG_CONN_DEV   *p_dev = NULL;
+    UINT8   i, j;
+    BOOLEAN ret = FALSE;
+
+    if ((p_dev = gatt_find_bg_dev(bd_addr)) == NULL)
+    {
+        return ret;
+    }
+
+    for (i = 0; i < GATT_MAX_APPS && (p_dev->gatt_if[i] > 0 || p_dev->listen_gif[i]); i ++)
+    {
+        if (is_initiator)
+        {
+            if (p_dev->gatt_if[i] == gatt_if)
+            {
+                p_dev->gatt_if[i] = 0;
+                /* move all element behind one forward */
+                for (j = i + 1; j < GATT_MAX_APPS; j ++)
+                    p_dev->gatt_if[j - 1] = p_dev->gatt_if[j];
+
+                if (p_dev->gatt_if[0] == 0)
+                    ret = BTM_BleUpdateBgConnDev(FALSE, p_dev->remote_bda);
+                else
+                    ret = TRUE;
+
+                break;
+            }
+        }
+        else
+        {
+            if (p_dev->listen_gif[i] == gatt_if)
+            {
+                p_dev->listen_gif[i] = 0;
+                p_reg->listening --;
+                /* move all element behind one forward */
+                for (j = i + 1; j < GATT_MAX_APPS; j ++)
+                    p_dev->listen_gif[j - 1] = p_dev->listen_gif[j];
+
+                if (p_dev->listen_gif[0] == 0)
+                    ret = BTM_BleUpdateAdvWhitelist(FALSE, p_dev->remote_bda);
+                else
+                    ret = TRUE;
+                break;
+            }
+        }
+    }
+
+    if (i != GATT_MAX_APPS && p_dev->gatt_if[0] == 0 && p_dev->listen_gif[0] == 0)
+    {
+        memset(p_dev, 0, sizeof(tGATT_BG_CONN_DEV));
+    }
+
+    return ret;
+}
+/*******************************************************************************
+**
+** Function         gatt_deregister_bgdev_list
+**
+** Description      deregister all related back ground connetion device.
+**
+** Returns          pointer to the device record
+**
+*******************************************************************************/
+void gatt_deregister_bgdev_list(tGATT_IF gatt_if)
+{
+    tGATT_BG_CONN_DEV    *p_dev_list = &gatt_cb.bgconn_dev[0];
+    UINT8 i , j, k;
+    tGATT_REG       *p_reg = gatt_get_regcb(gatt_if);
+
+    /* update the BG conn device list */
+    for (i = 0 ; i <GATT_MAX_BG_CONN_DEV; i ++, p_dev_list ++ )
+    {
+        if (p_dev_list->in_use)
+        {
+            for (j = 0; j < GATT_MAX_APPS; j ++)
+            {
+                if (p_dev_list->gatt_if[j] == 0 && p_dev_list->listen_gif[j] == 0)
+                    break;
+
+                if (p_dev_list->gatt_if[j] == gatt_if)
+                {
+                    for (k = j + 1; k < GATT_MAX_APPS; k ++)
+                        p_dev_list->gatt_if[k - 1] = p_dev_list->gatt_if[k];
+
+                    if (p_dev_list->gatt_if[0] == 0)
+                        BTM_BleUpdateBgConnDev(FALSE, p_dev_list->remote_bda);
+                }
+
+                if (p_dev_list->listen_gif[j] == gatt_if)
+                {
+                    p_dev_list->listen_gif[j] = 0;
+
+                    if (p_reg != NULL && p_reg->listening > 0)
+                        p_reg->listening --;
+
+                    /* move all element behind one forward */
+                    for (k = j + 1; k < GATT_MAX_APPS; k ++)
+                        p_dev_list->listen_gif[k - 1] = p_dev_list->listen_gif[k];
+
+                    if (p_dev_list->listen_gif[0] == 0)
+                        BTM_BleUpdateAdvWhitelist(FALSE, p_dev_list->remote_bda);
+                }
+            }
+        }
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         gatt_reset_bgdev_list
+**
+** Description      reset bg device list
+**
+** Returns          pointer to the device record
+**
+*******************************************************************************/
+void gatt_reset_bgdev_list(void)
+{
+    memset(&gatt_cb.bgconn_dev, 0 , sizeof(tGATT_BG_CONN_DEV)*GATT_MAX_BG_CONN_DEV);
+
+}
+/*******************************************************************************
+**
+** Function         gatt_update_auto_connect_dev
+**
+** Description      This function add or remove a device for background connection
+**                  procedure.
+**
+** Parameters       gatt_if: Application ID.
+**                  add: add peer device
+**                  bd_addr: peer device address.
+**
+** Returns          TRUE if connection started; FALSE if connection start failure.
+**
+*******************************************************************************/
+BOOLEAN gatt_update_auto_connect_dev (tGATT_IF gatt_if, BOOLEAN add, BD_ADDR bd_addr, BOOLEAN is_initator)
+{
+    BOOLEAN         ret = FALSE;
+    tGATT_REG        *p_reg;
+    tGATT_TCB       *p_tcb = gatt_find_tcb_by_addr(bd_addr, BT_TRANSPORT_LE);
+
+    GATT_TRACE_API ("gatt_update_auto_connect_dev ");
+    /* Make sure app is registered */
+    if ((p_reg = gatt_get_regcb(gatt_if)) == NULL)
+    {
+        GATT_TRACE_ERROR("gatt_update_auto_connect_dev - gatt_if is not registered", gatt_if);
+        return(FALSE);
+    }
+
+    if (add)
+    {
+        ret = gatt_add_bg_dev_list(p_reg, bd_addr, is_initator);
+
+        if (ret && p_tcb != NULL)
+        {
+            /* if a connected device, update the link holding number */
+            gatt_update_app_use_link_flag(gatt_if, p_tcb, TRUE, TRUE);
+        }
+    }
+    else
+    {
+        ret = gatt_remove_bg_dev_from_list(p_reg, bd_addr, is_initator);
+    }
+    return ret;
+}
+
+
+
+/*******************************************************************************
+**
+** Function     gatt_add_pending_new_srv_start
+**
+** Description  Add a pending new srv start to the new service start queue
+**
+** Returns    Pointer to the new service start buffer, NULL no buffer available
+**
+*******************************************************************************/
+tGATT_PENDING_ENC_CLCB* gatt_add_pending_enc_channel_clcb(tGATT_TCB *p_tcb, tGATT_CLCB *p_clcb)
+{
+    tGATT_PENDING_ENC_CLCB *p_buf =
+        (tGATT_PENDING_ENC_CLCB *)osi_malloc(sizeof(tGATT_PENDING_ENC_CLCB));
+
+    GATT_TRACE_DEBUG ("%s", __func__);
+    GATT_TRACE_DEBUG("enqueue a new pending encryption channel clcb");
+
+    p_buf->p_clcb = p_clcb;
+    fixed_queue_enqueue(p_tcb->pending_enc_clcb, p_buf);
+
+    return p_buf;
+}
+/*******************************************************************************
+**
+** Function     gatt_update_listen_mode
+**
+** Description  update peripheral role listening mode
+**
+** Returns    Pointer to the new service start buffer, NULL no buffer available
+**
+*******************************************************************************/
+BOOLEAN gatt_update_listen_mode(void)
+{
+    UINT8           ii = 0;
+    tGATT_REG       *p_reg = &gatt_cb.cl_rcb[0];
+    UINT8           listening = 0;
+    UINT16          connectability, window, interval;
+    BOOLEAN         rt = TRUE;
+
+    for (; ii < GATT_MAX_APPS; ii ++, p_reg ++)
+    {
+        if ( p_reg->in_use && p_reg->listening > listening)
+        {
+            listening = p_reg->listening;
+        }
+    }
+
+    if (listening == GATT_LISTEN_TO_ALL ||
+        listening == GATT_LISTEN_TO_NONE)
+        BTM_BleUpdateAdvFilterPolicy (AP_SCAN_CONN_ALL);
+    else
+        BTM_BleUpdateAdvFilterPolicy (AP_SCAN_CONN_WL);
+
+    if (rt)
+    {
+        connectability = BTM_ReadConnectability (&window, &interval);
+
+        if (listening != GATT_LISTEN_TO_NONE)
+        {
+            connectability |= BTM_BLE_CONNECTABLE;
+        }
+        else
+        {
+            if ((connectability & BTM_BLE_CONNECTABLE) == 0)
+            connectability &= ~BTM_BLE_CONNECTABLE;
+        }
+        /* turning on the adv now */
+        btm_ble_set_connectability(connectability);
+    }
+
+    return rt;
+
+}
+#endif
+
+
diff --git a/rtkbt/code/bt/stack/hcic/hciblecmds.c b/rtkbt/code/bt/stack/hcic/hciblecmds.c
new file mode 100755
index 0000000..5d58449
--- /dev/null
+++ b/rtkbt/code/bt/stack/hcic/hciblecmds.c
@@ -0,0 +1,770 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains function of the HCIC unit to format and send HCI
+ *  commands.
+ *
+ ******************************************************************************/
+
+#include "bt_target.h"
+#include "bt_common.h"
+#include "hcidefs.h"
+#include "hcimsgs.h"
+#include "hcidefs.h"
+#include "btu.h"
+
+#include <stddef.h>
+#include <string.h>
+
+#if (defined BLE_INCLUDED) && (BLE_INCLUDED == TRUE)
+
+BOOLEAN btsnd_hcic_ble_set_local_used_feat (UINT8 feat_set[8])
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_SET_USED_FEAT_CMD;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_BLE_WRITE_LOCAL_SPT_FEAT);
+    ARRAY_TO_STREAM (pp, feat_set, HCIC_PARAM_SIZE_SET_USED_FEAT_CMD);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_ble_set_random_addr (BD_ADDR random_bda)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_WRITE_RANDOM_ADDR_CMD;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_BLE_WRITE_RANDOM_ADDR);
+    UINT8_TO_STREAM  (pp,  HCIC_PARAM_SIZE_WRITE_RANDOM_ADDR_CMD);
+
+    BDADDR_TO_STREAM (pp, random_bda);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_ble_write_adv_params (UINT16 adv_int_min, UINT16 adv_int_max,
+                                       UINT8 adv_type, UINT8 addr_type_own,
+                                       UINT8 addr_type_dir, BD_ADDR direct_bda,
+                                       UINT8 channel_map, UINT8 adv_filter_policy)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_BLE_WRITE_ADV_PARAMS ;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_BLE_WRITE_ADV_PARAMS);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_BLE_WRITE_ADV_PARAMS );
+
+    UINT16_TO_STREAM (pp, adv_int_min);
+    UINT16_TO_STREAM (pp, adv_int_max);
+    UINT8_TO_STREAM (pp, adv_type);
+    UINT8_TO_STREAM (pp, addr_type_own);
+    UINT8_TO_STREAM (pp, addr_type_dir);
+    BDADDR_TO_STREAM (pp, direct_bda);
+    UINT8_TO_STREAM (pp, channel_map);
+    UINT8_TO_STREAM (pp, adv_filter_policy);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+BOOLEAN btsnd_hcic_ble_read_adv_chnl_tx_power (void)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_READ_CMD;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_BLE_READ_ADV_CHNL_TX_POWER);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_READ_CMD);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+
+}
+
+BOOLEAN btsnd_hcic_ble_set_adv_data (UINT8 data_len, UINT8 *p_data)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_BLE_WRITE_ADV_DATA + 1;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_BLE_WRITE_ADV_DATA);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_BLE_WRITE_ADV_DATA + 1);
+
+    memset(pp, 0, HCIC_PARAM_SIZE_BLE_WRITE_ADV_DATA);
+
+    if (p_data != NULL && data_len > 0)
+    {
+        if (data_len > HCIC_PARAM_SIZE_BLE_WRITE_ADV_DATA)
+            data_len = HCIC_PARAM_SIZE_BLE_WRITE_ADV_DATA;
+
+        UINT8_TO_STREAM (pp, data_len);
+
+        ARRAY_TO_STREAM (pp, p_data, data_len);
+    }
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+
+    return (TRUE);
+}
+BOOLEAN btsnd_hcic_ble_set_scan_rsp_data (UINT8 data_len, UINT8 *p_scan_rsp)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_BLE_WRITE_SCAN_RSP + 1;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_BLE_WRITE_SCAN_RSP_DATA);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_BLE_WRITE_SCAN_RSP + 1);
+
+    memset(pp, 0, HCIC_PARAM_SIZE_BLE_WRITE_SCAN_RSP);
+
+    if (p_scan_rsp != NULL && data_len > 0)
+    {
+
+        if (data_len > HCIC_PARAM_SIZE_BLE_WRITE_SCAN_RSP )
+            data_len = HCIC_PARAM_SIZE_BLE_WRITE_SCAN_RSP;
+
+        UINT8_TO_STREAM (pp, data_len);
+
+        ARRAY_TO_STREAM (pp, p_scan_rsp, data_len);
+    }
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_ble_set_adv_enable (UINT8 adv_enable)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_WRITE_ADV_ENABLE;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_BLE_WRITE_ADV_ENABLE);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_WRITE_ADV_ENABLE);
+
+    UINT8_TO_STREAM (pp, adv_enable);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+BOOLEAN btsnd_hcic_ble_set_scan_params (UINT8 scan_type,
+                                          UINT16 scan_int, UINT16 scan_win,
+                                          UINT8 addr_type_own, UINT8 scan_filter_policy)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_BLE_WRITE_SCAN_PARAM;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_BLE_WRITE_SCAN_PARAMS);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_BLE_WRITE_SCAN_PARAM);
+
+    UINT8_TO_STREAM (pp, scan_type);
+    UINT16_TO_STREAM (pp, scan_int);
+    UINT16_TO_STREAM (pp, scan_win);
+    UINT8_TO_STREAM (pp, addr_type_own);
+    UINT8_TO_STREAM (pp, scan_filter_policy);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_ble_set_scan_enable (UINT8 scan_enable, UINT8 duplicate)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_BLE_WRITE_SCAN_ENABLE;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_BLE_WRITE_SCAN_ENABLE);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_BLE_WRITE_SCAN_ENABLE);
+
+    UINT8_TO_STREAM (pp, scan_enable);
+    UINT8_TO_STREAM (pp, duplicate);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+/* link layer connection management commands */
+BOOLEAN btsnd_hcic_ble_create_ll_conn (UINT16 scan_int, UINT16 scan_win,
+                                       UINT8 init_filter_policy,
+                                       UINT8 addr_type_peer, BD_ADDR bda_peer,
+                                       UINT8 addr_type_own,
+                                       UINT16 conn_int_min, UINT16 conn_int_max,
+                                       UINT16 conn_latency, UINT16 conn_timeout,
+                                       UINT16 min_ce_len, UINT16 max_ce_len)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_BLE_CREATE_LL_CONN;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_BLE_CREATE_LL_CONN);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_BLE_CREATE_LL_CONN);
+
+    UINT16_TO_STREAM (pp, scan_int);
+    UINT16_TO_STREAM (pp, scan_win);
+    UINT8_TO_STREAM (pp, init_filter_policy);
+
+    UINT8_TO_STREAM (pp, addr_type_peer);
+    BDADDR_TO_STREAM (pp, bda_peer);
+    UINT8_TO_STREAM (pp, addr_type_own);
+
+    UINT16_TO_STREAM (pp, conn_int_min);
+    UINT16_TO_STREAM (pp, conn_int_max);
+    UINT16_TO_STREAM (pp, conn_latency);
+    UINT16_TO_STREAM (pp, conn_timeout);
+
+    UINT16_TO_STREAM (pp, min_ce_len);
+    UINT16_TO_STREAM (pp, max_ce_len);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_ble_create_conn_cancel (void)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_BLE_CREATE_CONN_CANCEL;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_BLE_CREATE_CONN_CANCEL);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_BLE_CREATE_CONN_CANCEL);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_ble_clear_white_list (void)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_CLEAR_WHITE_LIST;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_BLE_CLEAR_WHITE_LIST);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_CLEAR_WHITE_LIST);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_ble_add_white_list (UINT8 addr_type, BD_ADDR bda)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_ADD_WHITE_LIST;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_BLE_ADD_WHITE_LIST);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_ADD_WHITE_LIST);
+
+    UINT8_TO_STREAM (pp, addr_type);
+    BDADDR_TO_STREAM (pp, bda);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_ble_remove_from_white_list (UINT8 addr_type, BD_ADDR bda)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_REMOVE_WHITE_LIST;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_BLE_REMOVE_WHITE_LIST);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_REMOVE_WHITE_LIST);
+
+    UINT8_TO_STREAM (pp, addr_type);
+    BDADDR_TO_STREAM (pp, bda);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_ble_upd_ll_conn_params (UINT16 handle,
+                                           UINT16 conn_int_min, UINT16 conn_int_max,
+                                           UINT16 conn_latency, UINT16 conn_timeout,
+                                           UINT16 min_ce_len, UINT16 max_ce_len)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_BLE_UPD_LL_CONN_PARAMS;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_BLE_UPD_LL_CONN_PARAMS);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_BLE_UPD_LL_CONN_PARAMS);
+
+    UINT16_TO_STREAM (pp, handle);
+
+    UINT16_TO_STREAM (pp, conn_int_min);
+    UINT16_TO_STREAM (pp, conn_int_max);
+    UINT16_TO_STREAM (pp, conn_latency);
+    UINT16_TO_STREAM (pp, conn_timeout);
+    UINT16_TO_STREAM (pp, min_ce_len);
+    UINT16_TO_STREAM (pp, max_ce_len);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_ble_set_host_chnl_class (UINT8  chnl_map[HCIC_BLE_CHNL_MAP_SIZE])
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_SET_HOST_CHNL_CLASS;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_BLE_SET_HOST_CHNL_CLASS);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_SET_HOST_CHNL_CLASS);
+
+    ARRAY_TO_STREAM (pp, chnl_map, HCIC_BLE_CHNL_MAP_SIZE);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_ble_read_chnl_map (UINT16 handle)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_READ_CHNL_MAP;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_BLE_READ_CHNL_MAP);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_READ_CHNL_MAP);
+
+    UINT16_TO_STREAM (pp, handle);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_ble_read_remote_feat (UINT16 handle)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_BLE_READ_REMOTE_FEAT;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_BLE_READ_REMOTE_FEAT);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_BLE_READ_REMOTE_FEAT);
+
+    UINT16_TO_STREAM (pp, handle);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+/* security management commands */
+BOOLEAN btsnd_hcic_ble_encrypt (UINT8 *key, UINT8 key_len,
+                                UINT8 *plain_text, UINT8 pt_len,
+                                void *p_cmd_cplt_cback)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_BLE_ENCRYPT;
+    p->offset = sizeof(void *);
+
+    *((void **)pp) = p_cmd_cplt_cback;  /* Store command complete callback in buffer */
+    pp += sizeof(void *);               /* Skip over callback pointer */
+
+
+    UINT16_TO_STREAM (pp, HCI_BLE_ENCRYPT);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_BLE_ENCRYPT);
+
+    memset(pp, 0, HCIC_PARAM_SIZE_BLE_ENCRYPT);
+
+    if (key_len > HCIC_BLE_ENCRYT_KEY_SIZE) key_len = HCIC_BLE_ENCRYT_KEY_SIZE;
+    if (pt_len > HCIC_BLE_ENCRYT_KEY_SIZE) pt_len = HCIC_BLE_ENCRYT_KEY_SIZE;
+
+    ARRAY_TO_STREAM (pp, key, key_len);
+    pp += (HCIC_BLE_ENCRYT_KEY_SIZE - key_len);
+    ARRAY_TO_STREAM (pp, plain_text, pt_len);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_ble_rand (void *p_cmd_cplt_cback)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_BLE_RAND;
+    p->offset = sizeof(void *);
+
+    *((void **)pp) = p_cmd_cplt_cback;  /* Store command complete callback in buffer */
+    pp += sizeof(void *);               /* Skip over callback pointer */
+
+    UINT16_TO_STREAM (pp, HCI_BLE_RAND);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_BLE_RAND);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_ble_start_enc (UINT16 handle, UINT8 rand[HCIC_BLE_RAND_DI_SIZE],
+                                UINT16 ediv, UINT8 ltk[HCIC_BLE_ENCRYT_KEY_SIZE])
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_BLE_START_ENC;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_BLE_START_ENC);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_BLE_START_ENC);
+
+    UINT16_TO_STREAM (pp, handle);
+    ARRAY_TO_STREAM (pp, rand, HCIC_BLE_RAND_DI_SIZE);
+    UINT16_TO_STREAM (pp, ediv);
+    ARRAY_TO_STREAM (pp, ltk, HCIC_BLE_ENCRYT_KEY_SIZE);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_ble_ltk_req_reply (UINT16 handle, UINT8 ltk[HCIC_BLE_ENCRYT_KEY_SIZE])
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_LTK_REQ_REPLY;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_BLE_LTK_REQ_REPLY);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_LTK_REQ_REPLY);
+
+    UINT16_TO_STREAM (pp, handle);
+    ARRAY_TO_STREAM (pp, ltk, HCIC_BLE_ENCRYT_KEY_SIZE);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_ble_ltk_req_neg_reply (UINT16 handle)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_LTK_REQ_NEG_REPLY;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_BLE_LTK_REQ_NEG_REPLY);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_LTK_REQ_NEG_REPLY);
+
+    UINT16_TO_STREAM (pp, handle);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_ble_receiver_test(UINT8 rx_freq)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_WRITE_PARAM1;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_BLE_RECEIVER_TEST);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_WRITE_PARAM1);
+
+    UINT8_TO_STREAM (pp, rx_freq);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_ble_transmitter_test(UINT8 tx_freq, UINT8 test_data_len, UINT8 payload)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_WRITE_PARAM3;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_BLE_TRANSMITTER_TEST);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_WRITE_PARAM3);
+
+    UINT8_TO_STREAM (pp, tx_freq);
+    UINT8_TO_STREAM (pp, test_data_len);
+    UINT8_TO_STREAM (pp, payload);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_ble_test_end(void)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_READ_CMD;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_BLE_TEST_END);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_READ_CMD);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_ble_read_host_supported (void)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_READ_CMD;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_READ_LE_HOST_SUPPORT);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_READ_CMD);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+#if (defined BLE_LLT_INCLUDED) && (BLE_LLT_INCLUDED == TRUE)
+
+BOOLEAN btsnd_hcic_ble_rc_param_req_reply(  UINT16 handle,
+                                            UINT16 conn_int_min, UINT16 conn_int_max,
+                                            UINT16 conn_latency, UINT16 conn_timeout,
+                                            UINT16 min_ce_len, UINT16 max_ce_len  )
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_BLE_RC_PARAM_REQ_REPLY;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_BLE_RC_PARAM_REQ_REPLY);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_BLE_RC_PARAM_REQ_REPLY);
+
+    UINT16_TO_STREAM (pp, handle);
+    UINT16_TO_STREAM (pp, conn_int_min);
+    UINT16_TO_STREAM (pp, conn_int_max);
+    UINT16_TO_STREAM (pp, conn_latency);
+    UINT16_TO_STREAM (pp, conn_timeout);
+    UINT16_TO_STREAM (pp, min_ce_len);
+    UINT16_TO_STREAM (pp, max_ce_len);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_ble_rc_param_req_neg_reply(UINT16 handle, UINT8 reason)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_BLE_RC_PARAM_REQ_NEG_REPLY;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_BLE_RC_PARAM_REQ_NEG_REPLY);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_BLE_RC_PARAM_REQ_NEG_REPLY);
+
+    UINT16_TO_STREAM (pp, handle);
+    UINT8_TO_STREAM (pp, reason);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+#endif
+
+BOOLEAN btsnd_hcic_ble_add_device_resolving_list (UINT8 addr_type_peer, BD_ADDR bda_peer,
+    UINT8 irk_peer[HCIC_BLE_IRK_SIZE],
+    UINT8 irk_local[HCIC_BLE_IRK_SIZE])
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_BLE_ADD_DEV_RESOLVING_LIST;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_BLE_ADD_DEV_RESOLVING_LIST);
+    UINT8_TO_STREAM (pp, HCIC_PARAM_SIZE_BLE_ADD_DEV_RESOLVING_LIST);
+    UINT8_TO_STREAM (pp, addr_type_peer);
+    BDADDR_TO_STREAM (pp, bda_peer);
+    ARRAY_TO_STREAM (pp, irk_peer, HCIC_BLE_ENCRYT_KEY_SIZE);
+    ARRAY_TO_STREAM (pp, irk_local, HCIC_BLE_ENCRYT_KEY_SIZE);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID, p);
+
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_ble_rm_device_resolving_list (UINT8 addr_type_peer, BD_ADDR bda_peer)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_BLE_RM_DEV_RESOLVING_LIST;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_BLE_RM_DEV_RESOLVING_LIST);
+    UINT8_TO_STREAM (pp, HCIC_PARAM_SIZE_BLE_RM_DEV_RESOLVING_LIST);
+    UINT8_TO_STREAM (pp, addr_type_peer);
+    BDADDR_TO_STREAM (pp, bda_peer);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID, p);
+
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_ble_clear_resolving_list (void)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_BLE_CLEAR_RESOLVING_LIST;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_BLE_CLEAR_RESOLVING_LIST);
+    UINT8_TO_STREAM (pp, HCIC_PARAM_SIZE_BLE_CLEAR_RESOLVING_LIST);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID, p);
+
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_ble_read_resolvable_addr_peer (UINT8 addr_type_peer, BD_ADDR bda_peer)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_BLE_READ_RESOLVABLE_ADDR_PEER;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_BLE_READ_RESOLVABLE_ADDR_PEER);
+    UINT8_TO_STREAM (pp, HCIC_PARAM_SIZE_BLE_READ_RESOLVABLE_ADDR_PEER);
+    UINT8_TO_STREAM (pp, addr_type_peer);
+    BDADDR_TO_STREAM (pp, bda_peer);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID, p);
+
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_ble_read_resolvable_addr_local (UINT8 addr_type_peer, BD_ADDR bda_peer)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_BLE_READ_RESOLVABLE_ADDR_LOCAL;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_BLE_READ_RESOLVABLE_ADDR_LOCAL);
+    UINT8_TO_STREAM (pp, HCIC_PARAM_SIZE_BLE_READ_RESOLVABLE_ADDR_LOCAL);
+    UINT8_TO_STREAM (pp, addr_type_peer);
+    BDADDR_TO_STREAM (pp, bda_peer);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID, p);
+
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_ble_set_addr_resolution_enable (UINT8 addr_resolution_enable)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_BLE_SET_ADDR_RESOLUTION_ENABLE;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_BLE_SET_ADDR_RESOLUTION_ENABLE);
+    UINT8_TO_STREAM (pp, HCIC_PARAM_SIZE_BLE_SET_ADDR_RESOLUTION_ENABLE);
+    UINT8_TO_STREAM (pp, addr_resolution_enable);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID, p);
+
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_ble_set_rand_priv_addr_timeout (UINT16 rpa_timout)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_BLE_SET_RAND_PRIV_ADDR_TIMOUT;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_BLE_SET_RAND_PRIV_ADDR_TIMOUT);
+    UINT8_TO_STREAM (pp, HCIC_PARAM_SIZE_BLE_SET_RAND_PRIV_ADDR_TIMOUT);
+    UINT16_TO_STREAM (pp, rpa_timout);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID, p);
+
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_ble_set_data_length(UINT16 conn_handle, UINT16 tx_octets, UINT16 tx_time)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_BLE_SET_DATA_LENGTH;
+    p->offset = 0;
+
+    UINT16_TO_STREAM(pp, HCI_BLE_SET_DATA_LENGTH);
+    UINT8_TO_STREAM(pp, HCIC_PARAM_SIZE_BLE_SET_DATA_LENGTH);
+
+    UINT16_TO_STREAM(pp, conn_handle);
+    UINT16_TO_STREAM(pp, tx_octets);
+    UINT16_TO_STREAM(pp, tx_time);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID, p);
+    return TRUE;
+}
+
+#endif
+
diff --git a/rtkbt/code/bt/stack/hcic/hcicmds.c b/rtkbt/code/bt/stack/hcic/hcicmds.c
new file mode 100755
index 0000000..34fce49
--- /dev/null
+++ b/rtkbt/code/bt/stack/hcic/hcicmds.c
@@ -0,0 +1,1447 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains function of the HCIC unit to format and send HCI
+ *  commands.
+ *
+ ******************************************************************************/
+
+#include "bt_target.h"
+#include "bt_common.h"
+#include "hcidefs.h"
+#include "hcimsgs.h"
+#include "hcidefs.h"
+#include "btu.h"
+
+#include <stddef.h>
+#include <string.h>
+
+#include "btm_int.h"    /* Included for UIPC_* macro definitions */
+
+BOOLEAN btsnd_hcic_inquiry(const LAP inq_lap, UINT8 duration, UINT8 response_cnt)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_INQUIRY;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_INQUIRY);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_INQUIRY);
+
+    LAP_TO_STREAM   (pp, inq_lap);
+    UINT8_TO_STREAM (pp, duration);
+    UINT8_TO_STREAM (pp, response_cnt);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID, p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_inq_cancel(void)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_INQ_CANCEL;
+    p->offset = 0;
+    UINT16_TO_STREAM (pp, HCI_INQUIRY_CANCEL);
+    UINT8_TO_STREAM (pp, HCIC_PARAM_SIZE_INQ_CANCEL);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID, p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_per_inq_mode (UINT16 max_period, UINT16 min_period,
+                                 const LAP inq_lap, UINT8 duration, UINT8 response_cnt)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_PER_INQ_MODE;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_PERIODIC_INQUIRY_MODE);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_PER_INQ_MODE);
+
+    UINT16_TO_STREAM (pp, max_period);
+    UINT16_TO_STREAM (pp, min_period);
+    LAP_TO_STREAM    (pp, inq_lap);
+    UINT8_TO_STREAM  (pp, duration);
+    UINT8_TO_STREAM  (pp, response_cnt);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID, p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_exit_per_inq (void)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_EXIT_PER_INQ;
+    p->offset = 0;
+    UINT16_TO_STREAM (pp, HCI_EXIT_PERIODIC_INQUIRY_MODE);
+    UINT8_TO_STREAM (pp, HCIC_PARAM_SIZE_EXIT_PER_INQ);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID, p);
+    return (TRUE);
+}
+
+
+BOOLEAN btsnd_hcic_create_conn(BD_ADDR dest, UINT16 packet_types,
+                               UINT8 page_scan_rep_mode, UINT8 page_scan_mode,
+                               UINT16 clock_offset, UINT8 allow_switch)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+#ifndef BT_10A
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_CREATE_CONN;
+#else
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_CREATE_CONN - 1;
+#endif
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_CREATE_CONNECTION);
+#ifndef BT_10A
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_CREATE_CONN);
+#else
+    UINT8_TO_STREAM  (pp, (HCIC_PARAM_SIZE_CREATE_CONN - 1));
+#endif
+    BDADDR_TO_STREAM (pp, dest);
+    UINT16_TO_STREAM (pp, packet_types);
+    UINT8_TO_STREAM  (pp, page_scan_rep_mode);
+    UINT8_TO_STREAM  (pp, page_scan_mode);
+    UINT16_TO_STREAM (pp, clock_offset);
+#if !defined (BT_10A)
+    UINT8_TO_STREAM  (pp, allow_switch);
+#endif
+    btm_acl_paging (p, dest);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_disconnect (UINT16 handle, UINT8 reason)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_DISCONNECT;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_DISCONNECT);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_DISCONNECT);
+    UINT16_TO_STREAM (pp, handle);
+    UINT8_TO_STREAM  (pp, reason);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID, p);
+    return (TRUE);
+}
+
+#if BTM_SCO_INCLUDED == TRUE
+BOOLEAN btsnd_hcic_add_SCO_conn (UINT16 handle, UINT16 packet_types)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_ADD_SCO_CONN;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_ADD_SCO_CONNECTION);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_ADD_SCO_CONN);
+
+    UINT16_TO_STREAM (pp, handle);
+    UINT16_TO_STREAM (pp, packet_types);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID, p);
+    return (TRUE);
+}
+#endif /* BTM_SCO_INCLUDED */
+
+BOOLEAN btsnd_hcic_create_conn_cancel(BD_ADDR dest)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_CREATE_CONN_CANCEL;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_CREATE_CONNECTION_CANCEL);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_CREATE_CONN_CANCEL);
+
+    BDADDR_TO_STREAM (pp, dest);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID, p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_accept_conn (BD_ADDR dest, UINT8 role)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_ACCEPT_CONN;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_ACCEPT_CONNECTION_REQUEST);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_ACCEPT_CONN);
+    BDADDR_TO_STREAM (pp, dest);
+    UINT8_TO_STREAM  (pp, role);
+
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID, p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_reject_conn (BD_ADDR dest, UINT8 reason)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_REJECT_CONN;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_REJECT_CONNECTION_REQUEST);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_REJECT_CONN);
+
+    BDADDR_TO_STREAM (pp, dest);
+    UINT8_TO_STREAM (pp, reason);
+
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID, p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_link_key_req_reply (BD_ADDR bd_addr, LINK_KEY link_key)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_LINK_KEY_REQ_REPLY;
+    p->offset = 0;
+
+    UINT16_TO_STREAM  (pp, HCI_LINK_KEY_REQUEST_REPLY);
+    UINT8_TO_STREAM   (pp, HCIC_PARAM_SIZE_LINK_KEY_REQ_REPLY);
+
+    BDADDR_TO_STREAM  (pp, bd_addr);
+    ARRAY16_TO_STREAM (pp, link_key);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID, p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_link_key_neg_reply (BD_ADDR bd_addr)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_LINK_KEY_NEG_REPLY;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_LINK_KEY_REQUEST_NEG_REPLY);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_LINK_KEY_NEG_REPLY);
+
+    BDADDR_TO_STREAM (pp, bd_addr);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID, p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_pin_code_req_reply (BD_ADDR bd_addr, UINT8 pin_code_len,
+                                    PIN_CODE pin_code)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+    int i;
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_PIN_CODE_REQ_REPLY;
+    p->offset = 0;
+
+    UINT16_TO_STREAM  (pp, HCI_PIN_CODE_REQUEST_REPLY);
+    UINT8_TO_STREAM   (pp, HCIC_PARAM_SIZE_PIN_CODE_REQ_REPLY);
+
+    BDADDR_TO_STREAM  (pp, bd_addr);
+    UINT8_TO_STREAM   (pp, pin_code_len);
+
+    for (i = 0; i < pin_code_len; i++)
+        *pp++ = *pin_code++;
+
+    for (; i < PIN_CODE_LEN; i++)
+        *pp++ = 0;
+
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID, p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_pin_code_neg_reply (BD_ADDR bd_addr)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_PIN_CODE_NEG_REPLY;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_PIN_CODE_REQUEST_NEG_REPLY);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_PIN_CODE_NEG_REPLY);
+
+    BDADDR_TO_STREAM (pp, bd_addr);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID, p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_change_conn_type (UINT16 handle, UINT16 packet_types)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_CHANGE_CONN_TYPE;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_CHANGE_CONN_PACKET_TYPE);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_CHANGE_CONN_TYPE);
+
+    UINT16_TO_STREAM (pp, handle);
+    UINT16_TO_STREAM (pp, packet_types);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID, p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_auth_request (UINT16 handle)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_CMD_HANDLE;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_AUTHENTICATION_REQUESTED);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_CMD_HANDLE);
+
+    UINT16_TO_STREAM (pp, handle);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID, p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_set_conn_encrypt (UINT16 handle, BOOLEAN enable)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_SET_CONN_ENCRYPT;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_SET_CONN_ENCRYPTION);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_SET_CONN_ENCRYPT);
+
+    UINT16_TO_STREAM (pp, handle);
+    UINT8_TO_STREAM  (pp, enable);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID, p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_rmt_name_req (BD_ADDR bd_addr, UINT8 page_scan_rep_mode,
+                                 UINT8 page_scan_mode, UINT16 clock_offset)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_RMT_NAME_REQ;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_RMT_NAME_REQUEST);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_RMT_NAME_REQ);
+
+    BDADDR_TO_STREAM (pp, bd_addr);
+    UINT8_TO_STREAM  (pp, page_scan_rep_mode);
+    UINT8_TO_STREAM  (pp, page_scan_mode);
+    UINT16_TO_STREAM (pp, clock_offset);
+
+    btm_acl_paging (p, bd_addr);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_rmt_name_req_cancel (BD_ADDR bd_addr)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_RMT_NAME_REQ_CANCEL;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_RMT_NAME_REQUEST_CANCEL);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_RMT_NAME_REQ_CANCEL);
+
+    BDADDR_TO_STREAM (pp, bd_addr);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID, p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_rmt_features_req (UINT16 handle)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_CMD_HANDLE;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_READ_RMT_FEATURES);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_CMD_HANDLE);
+
+    UINT16_TO_STREAM (pp, handle);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID, p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_rmt_ext_features (UINT16 handle, UINT8 page_num)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_RMT_EXT_FEATURES;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_READ_RMT_EXT_FEATURES);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_RMT_EXT_FEATURES);
+
+    UINT16_TO_STREAM (pp, handle);
+    UINT8_TO_STREAM (pp, page_num);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID, p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_rmt_ver_req (UINT16 handle)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_CMD_HANDLE;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_READ_RMT_VERSION_INFO);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_CMD_HANDLE);
+
+    UINT16_TO_STREAM (pp, handle);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID, p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_read_rmt_clk_offset (UINT16 handle)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_CMD_HANDLE;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_READ_RMT_CLOCK_OFFSET);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_CMD_HANDLE);
+
+    UINT16_TO_STREAM (pp, handle);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_read_lmp_handle (UINT16 handle)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_CMD_HANDLE;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_READ_LMP_HANDLE);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_CMD_HANDLE);
+
+    UINT16_TO_STREAM (pp, handle);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_setup_esco_conn (UINT16 handle, UINT32 tx_bw,
+                                    UINT32 rx_bw, UINT16 max_latency, UINT16 voice,
+                                    UINT8 retrans_effort, UINT16 packet_types)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_SETUP_ESCO;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_SETUP_ESCO_CONNECTION);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_SETUP_ESCO);
+
+    UINT16_TO_STREAM (pp, handle);
+    UINT32_TO_STREAM (pp, tx_bw);
+    UINT32_TO_STREAM (pp, rx_bw);
+    UINT16_TO_STREAM (pp, max_latency);
+    UINT16_TO_STREAM (pp, voice);
+    UINT8_TO_STREAM  (pp, retrans_effort);
+    UINT16_TO_STREAM (pp, packet_types);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_accept_esco_conn (BD_ADDR bd_addr, UINT32 tx_bw,
+                                     UINT32 rx_bw, UINT16 max_latency,
+                                     UINT16 content_fmt, UINT8 retrans_effort,
+                                     UINT16 packet_types)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_ACCEPT_ESCO;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_ACCEPT_ESCO_CONNECTION);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_ACCEPT_ESCO);
+
+    BDADDR_TO_STREAM (pp, bd_addr);
+    UINT32_TO_STREAM (pp, tx_bw);
+    UINT32_TO_STREAM (pp, rx_bw);
+    UINT16_TO_STREAM (pp, max_latency);
+    UINT16_TO_STREAM (pp, content_fmt);
+    UINT8_TO_STREAM  (pp, retrans_effort);
+    UINT16_TO_STREAM (pp, packet_types);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_reject_esco_conn (BD_ADDR bd_addr, UINT8 reason)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_REJECT_ESCO;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_REJECT_ESCO_CONNECTION);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_REJECT_ESCO);
+
+    BDADDR_TO_STREAM (pp, bd_addr);
+    UINT8_TO_STREAM  (pp, reason);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_hold_mode (UINT16 handle, UINT16 max_hold_period,
+                              UINT16 min_hold_period)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_HOLD_MODE;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_HOLD_MODE);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_HOLD_MODE);
+
+    UINT16_TO_STREAM (pp, handle);
+    UINT16_TO_STREAM (pp, max_hold_period);
+    UINT16_TO_STREAM (pp, min_hold_period);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_sniff_mode (UINT16 handle, UINT16 max_sniff_period,
+                               UINT16 min_sniff_period, UINT16 sniff_attempt,
+                               UINT16 sniff_timeout)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_SNIFF_MODE;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_SNIFF_MODE);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_SNIFF_MODE);
+
+    UINT16_TO_STREAM (pp, handle);
+    UINT16_TO_STREAM (pp, max_sniff_period);
+    UINT16_TO_STREAM (pp, min_sniff_period);
+    UINT16_TO_STREAM (pp, sniff_attempt);
+    UINT16_TO_STREAM (pp, sniff_timeout);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_exit_sniff_mode (UINT16 handle)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_CMD_HANDLE;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_EXIT_SNIFF_MODE);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_CMD_HANDLE);
+
+    UINT16_TO_STREAM (pp, handle);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return TRUE;
+}
+
+BOOLEAN btsnd_hcic_park_mode (UINT16 handle, UINT16 beacon_max_interval,
+                              UINT16 beacon_min_interval)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_PARK_MODE;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_PARK_MODE);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_PARK_MODE);
+
+    UINT16_TO_STREAM (pp, handle);
+    UINT16_TO_STREAM (pp, beacon_max_interval);
+    UINT16_TO_STREAM (pp, beacon_min_interval);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_exit_park_mode (UINT16 handle)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_CMD_HANDLE;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_EXIT_PARK_MODE);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_CMD_HANDLE);
+
+    UINT16_TO_STREAM (pp, handle);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return TRUE;
+}
+
+BOOLEAN btsnd_hcic_qos_setup (UINT16 handle, UINT8 flags, UINT8 service_type,
+                              UINT32 token_rate, UINT32 peak, UINT32 latency,
+                              UINT32 delay_var)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_QOS_SETUP;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_QOS_SETUP);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_QOS_SETUP);
+
+    UINT16_TO_STREAM (pp, handle);
+    UINT8_TO_STREAM  (pp, flags);
+    UINT8_TO_STREAM  (pp, service_type);
+    UINT32_TO_STREAM (pp, token_rate);
+    UINT32_TO_STREAM (pp, peak);
+    UINT32_TO_STREAM (pp, latency);
+    UINT32_TO_STREAM (pp, delay_var);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_switch_role (BD_ADDR bd_addr, UINT8 role)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_SWITCH_ROLE;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_SWITCH_ROLE);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_SWITCH_ROLE);
+
+    BDADDR_TO_STREAM (pp, bd_addr);
+    UINT8_TO_STREAM  (pp, role);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_write_policy_set (UINT16 handle, UINT16 settings)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_WRITE_POLICY_SET;
+    p->offset = 0;
+    UINT16_TO_STREAM (pp, HCI_WRITE_POLICY_SETTINGS);
+    UINT8_TO_STREAM (pp, HCIC_PARAM_SIZE_WRITE_POLICY_SET);
+
+    UINT16_TO_STREAM (pp, handle);
+    UINT16_TO_STREAM (pp, settings);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_write_def_policy_set (UINT16 settings)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_WRITE_DEF_POLICY_SET;
+    p->offset = 0;
+    UINT16_TO_STREAM (pp, HCI_WRITE_DEF_POLICY_SETTINGS);
+    UINT8_TO_STREAM (pp, HCIC_PARAM_SIZE_WRITE_DEF_POLICY_SET);
+
+    UINT16_TO_STREAM (pp, settings);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_set_event_filter (UINT8 filt_type, UINT8 filt_cond_type,
+                                     UINT8 *filt_cond, UINT8 filt_cond_len)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_SET_EVENT_FILTER);
+
+    if (filt_type)
+    {
+        p->len = (UINT16)(HCIC_PREAMBLE_SIZE + 2 + filt_cond_len);
+        UINT8_TO_STREAM (pp, (UINT8)(2 + filt_cond_len));
+
+        UINT8_TO_STREAM (pp, filt_type);
+        UINT8_TO_STREAM (pp, filt_cond_type);
+
+        if (filt_cond_type == HCI_FILTER_COND_DEVICE_CLASS)
+        {
+            DEVCLASS_TO_STREAM (pp, filt_cond);
+            filt_cond += DEV_CLASS_LEN;
+            DEVCLASS_TO_STREAM (pp, filt_cond);
+            filt_cond += DEV_CLASS_LEN;
+
+            filt_cond_len -= (2 * DEV_CLASS_LEN);
+        }
+        else if (filt_cond_type == HCI_FILTER_COND_BD_ADDR)
+        {
+            BDADDR_TO_STREAM (pp, filt_cond);
+            filt_cond += BD_ADDR_LEN;
+
+            filt_cond_len -= BD_ADDR_LEN;
+        }
+
+        if (filt_cond_len)
+            ARRAY_TO_STREAM (pp, filt_cond, filt_cond_len);
+    }
+    else
+    {
+        p->len = (UINT16)(HCIC_PREAMBLE_SIZE + 1);
+        UINT8_TO_STREAM (pp, 1);
+
+        UINT8_TO_STREAM (pp, filt_type);
+    }
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_write_pin_type (UINT8 type)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_WRITE_PARAM1;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_WRITE_PIN_TYPE);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_WRITE_PARAM1);
+
+    UINT8_TO_STREAM (pp, type);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_delete_stored_key (BD_ADDR bd_addr, BOOLEAN delete_all_flag)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_DELETE_STORED_KEY;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_DELETE_STORED_LINK_KEY);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_DELETE_STORED_KEY);
+
+    BDADDR_TO_STREAM (pp, bd_addr);
+    UINT8_TO_STREAM  (pp, delete_all_flag);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_change_name (BD_NAME name)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+    UINT16 len = strlen((char *)name) + 1;
+
+    memset(pp, 0, HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_CHANGE_NAME);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_CHANGE_NAME;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_CHANGE_LOCAL_NAME);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_CHANGE_NAME);
+
+    if (len > HCIC_PARAM_SIZE_CHANGE_NAME)
+        len = HCIC_PARAM_SIZE_CHANGE_NAME;
+
+    ARRAY_TO_STREAM (pp, name, len);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_read_name (void)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_READ_CMD;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_READ_LOCAL_NAME);
+    UINT8_TO_STREAM  (pp,  HCIC_PARAM_SIZE_READ_CMD);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_write_page_tout (UINT16 timeout)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_WRITE_PARAM2;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_WRITE_PAGE_TOUT);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_WRITE_PARAM2);
+
+    UINT16_TO_STREAM  (pp, timeout);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_write_scan_enable (UINT8 flag)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_WRITE_PARAM1;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_WRITE_SCAN_ENABLE);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_WRITE_PARAM1);
+
+    UINT8_TO_STREAM  (pp, flag);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_write_pagescan_cfg(UINT16 interval, UINT16 window)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_WRITE_PAGESCAN_CFG;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_WRITE_PAGESCAN_CFG);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_WRITE_PAGESCAN_CFG);
+
+    UINT16_TO_STREAM (pp, interval);
+    UINT16_TO_STREAM (pp, window);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_write_inqscan_cfg(UINT16 interval, UINT16 window)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_WRITE_INQSCAN_CFG;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_WRITE_INQUIRYSCAN_CFG);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_WRITE_INQSCAN_CFG);
+
+    UINT16_TO_STREAM (pp, interval);
+    UINT16_TO_STREAM (pp, window);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_write_auth_enable (UINT8 flag)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_WRITE_PARAM1;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_WRITE_AUTHENTICATION_ENABLE);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_WRITE_PARAM1);
+
+    UINT8_TO_STREAM (pp, flag);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_write_dev_class(DEV_CLASS dev_class)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_WRITE_PARAM3;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_WRITE_CLASS_OF_DEVICE);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_WRITE_PARAM3);
+
+    DEVCLASS_TO_STREAM (pp, dev_class);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_write_voice_settings(UINT16 flags)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_WRITE_PARAM2;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_WRITE_VOICE_SETTINGS);
+    UINT8_TO_STREAM (pp, HCIC_PARAM_SIZE_WRITE_PARAM2);
+
+    UINT16_TO_STREAM (pp, flags);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_write_auto_flush_tout (UINT16 handle, UINT16 tout)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_WRITE_AUTO_FLUSH_TOUT;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_WRITE_AUTO_FLUSH_TOUT);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_WRITE_AUTO_FLUSH_TOUT);
+
+    UINT16_TO_STREAM (pp, handle);
+    UINT16_TO_STREAM (pp, tout);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_read_tx_power (UINT16 handle, UINT8 type)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_READ_TX_POWER;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_READ_TRANSMIT_POWER_LEVEL);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_READ_TX_POWER);
+
+    UINT16_TO_STREAM (pp, handle);
+    UINT8_TO_STREAM  (pp, type);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_host_num_xmitted_pkts (UINT8 num_handles, UINT16 *handle,
+                                          UINT16 *num_pkts)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + 1 + (num_handles * 4);
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_HOST_NUM_PACKETS_DONE);
+    UINT8_TO_STREAM  (pp, p->len - HCIC_PREAMBLE_SIZE);
+
+    UINT8_TO_STREAM (pp, num_handles);
+
+    for (int i = 0; i < num_handles; i++) {
+        UINT16_TO_STREAM(pp, handle[i]);
+        UINT16_TO_STREAM(pp, num_pkts[i]);
+    }
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_write_link_super_tout (UINT8 local_controller_id, UINT16 handle, UINT16 timeout)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_WRITE_LINK_SUPER_TOUT;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_WRITE_LINK_SUPER_TOUT);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_WRITE_LINK_SUPER_TOUT);
+
+    UINT16_TO_STREAM (pp, handle);
+    UINT16_TO_STREAM (pp, timeout);
+
+    btu_hcif_send_cmd (local_controller_id,  p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_write_cur_iac_lap (UINT8 num_cur_iac, LAP * const iac_lap)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + 1 + (LAP_LEN * num_cur_iac);
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_WRITE_CURRENT_IAC_LAP);
+    UINT8_TO_STREAM  (pp, p->len - HCIC_PREAMBLE_SIZE);
+
+    UINT8_TO_STREAM (pp, num_cur_iac);
+
+    for (int i = 0; i < num_cur_iac; i++)
+        LAP_TO_STREAM (pp, iac_lap[i]);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+/******************************************
+**    Lisbon Features
+*******************************************/
+#if BTM_SSR_INCLUDED == TRUE
+
+BOOLEAN btsnd_hcic_sniff_sub_rate(UINT16 handle, UINT16 max_lat,
+                                  UINT16 min_remote_lat, UINT16 min_local_lat)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_SNIFF_SUB_RATE;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_SNIFF_SUB_RATE);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_SNIFF_SUB_RATE);
+
+    UINT16_TO_STREAM  (pp, handle);
+    UINT16_TO_STREAM  (pp, max_lat);
+    UINT16_TO_STREAM  (pp, min_remote_lat);
+    UINT16_TO_STREAM  (pp, min_local_lat);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+#endif /* BTM_SSR_INCLUDED */
+
+/**** Extended Inquiry Response Commands ****/
+void btsnd_hcic_write_ext_inquiry_response (void *buffer, UINT8 fec_req)
+{
+    BT_HDR *p = (BT_HDR *)buffer;
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_EXT_INQ_RESP;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_WRITE_EXT_INQ_RESPONSE);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_EXT_INQ_RESP);
+
+    UINT8_TO_STREAM (pp, fec_req);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+}
+
+BOOLEAN btsnd_hcic_io_cap_req_reply (BD_ADDR bd_addr, UINT8 capability,
+                                UINT8 oob_present, UINT8 auth_req)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_IO_CAP_RESP;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_IO_CAPABILITY_REQUEST_REPLY);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_IO_CAP_RESP);
+
+    BDADDR_TO_STREAM (pp, bd_addr);
+    UINT8_TO_STREAM  (pp, capability);
+    UINT8_TO_STREAM  (pp, oob_present);
+    UINT8_TO_STREAM  (pp, auth_req);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_io_cap_req_neg_reply (BD_ADDR bd_addr, UINT8 err_code)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_IO_CAP_NEG_REPLY;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_IO_CAP_REQ_NEG_REPLY);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_IO_CAP_NEG_REPLY);
+
+    BDADDR_TO_STREAM (pp, bd_addr);
+    UINT8_TO_STREAM  (pp, err_code);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_read_local_oob_data (void)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_R_LOCAL_OOB;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_READ_LOCAL_OOB_DATA);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_R_LOCAL_OOB);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_user_conf_reply (BD_ADDR bd_addr, BOOLEAN is_yes)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_UCONF_REPLY;
+    p->offset = 0;
+
+    if (!is_yes)
+    {
+        /* Negative reply */
+        UINT16_TO_STREAM (pp, HCI_USER_CONF_VALUE_NEG_REPLY);
+    }
+    else
+    {
+        /* Confirmation */
+        UINT16_TO_STREAM (pp, HCI_USER_CONF_REQUEST_REPLY);
+    }
+
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_UCONF_REPLY);
+
+    BDADDR_TO_STREAM (pp, bd_addr);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_user_passkey_reply (BD_ADDR bd_addr, UINT32 value)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_U_PKEY_REPLY;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_USER_PASSKEY_REQ_REPLY);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_U_PKEY_REPLY);
+
+    BDADDR_TO_STREAM (pp, bd_addr);
+    UINT32_TO_STREAM (pp, value);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_user_passkey_neg_reply (BD_ADDR bd_addr)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_U_PKEY_NEG_REPLY;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_USER_PASSKEY_REQ_NEG_REPLY);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_U_PKEY_NEG_REPLY);
+
+    BDADDR_TO_STREAM (pp, bd_addr);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_rem_oob_reply (BD_ADDR bd_addr, UINT8 *p_c, UINT8 *p_r)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_REM_OOB_REPLY;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_REM_OOB_DATA_REQ_REPLY);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_REM_OOB_REPLY);
+
+    BDADDR_TO_STREAM (pp, bd_addr);
+    ARRAY16_TO_STREAM (pp, p_c);
+    ARRAY16_TO_STREAM (pp, p_r);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_rem_oob_neg_reply (BD_ADDR bd_addr)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_REM_OOB_NEG_REPLY;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_REM_OOB_DATA_REQ_NEG_REPLY);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_REM_OOB_NEG_REPLY);
+
+    BDADDR_TO_STREAM (pp, bd_addr);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+
+BOOLEAN btsnd_hcic_read_inq_tx_power (void)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_R_TX_POWER;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_READ_INQ_TX_POWER_LEVEL);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_R_TX_POWER);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_send_keypress_notif (BD_ADDR bd_addr, UINT8 notif)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_SEND_KEYPRESS_NOTIF;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_SEND_KEYPRESS_NOTIF);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_SEND_KEYPRESS_NOTIF);
+
+    BDADDR_TO_STREAM (pp, bd_addr);
+    UINT8_TO_STREAM (pp, notif);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+/**** end of Simple Pairing Commands ****/
+
+#if L2CAP_NON_FLUSHABLE_PB_INCLUDED == TRUE
+BOOLEAN btsnd_hcic_enhanced_flush (UINT16 handle, UINT8 packet_type)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_ENHANCED_FLUSH;
+    p->offset = 0;
+    UINT16_TO_STREAM (pp, HCI_ENHANCED_FLUSH);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_ENHANCED_FLUSH);
+
+    UINT16_TO_STREAM (pp, handle);
+    UINT8_TO_STREAM  (pp, packet_type);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+#endif
+
+/*************************
+** End of Lisbon Commands
+**************************/
+
+BOOLEAN btsnd_hcic_get_link_quality (UINT16 handle)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_CMD_HANDLE;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_GET_LINK_QUALITY);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_CMD_HANDLE);
+
+    UINT16_TO_STREAM (pp, handle);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_read_rssi (UINT16 handle)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_CMD_HANDLE;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_READ_RSSI);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_CMD_HANDLE);
+
+    UINT16_TO_STREAM (pp, handle);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_enable_test_mode (void)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_READ_CMD;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_ENABLE_DEV_UNDER_TEST_MODE);
+    UINT8_TO_STREAM  (pp,  HCIC_PARAM_SIZE_READ_CMD);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_write_inqscan_type (UINT8 type)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_WRITE_PARAM1;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_WRITE_INQSCAN_TYPE);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_WRITE_PARAM1);
+
+    UINT8_TO_STREAM  (pp, type);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_write_inquiry_mode (UINT8 mode)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_WRITE_PARAM1;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_WRITE_INQUIRY_MODE);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_WRITE_PARAM1);
+
+    UINT8_TO_STREAM  (pp, mode);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+BOOLEAN btsnd_hcic_write_pagescan_type (UINT8 type)
+{
+    BT_HDR *p = (BT_HDR *)osi_malloc(HCI_CMD_BUF_SIZE);
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + HCIC_PARAM_SIZE_WRITE_PARAM1;
+    p->offset = 0;
+
+    UINT16_TO_STREAM (pp, HCI_WRITE_PAGESCAN_TYPE);
+    UINT8_TO_STREAM  (pp, HCIC_PARAM_SIZE_WRITE_PARAM1);
+
+    UINT8_TO_STREAM  (pp, type);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+    return (TRUE);
+}
+
+/* Must have room to store BT_HDR + max VSC length + callback pointer */
+#if (HCI_CMD_BUF_SIZE < 268)
+#error "HCI_CMD_BUF_SIZE must be larger than 268"
+#endif
+
+void btsnd_hcic_vendor_spec_cmd (void *buffer, UINT16 opcode, UINT8 len,
+                                 UINT8 *p_data, void *p_cmd_cplt_cback)
+{
+    BT_HDR *p = (BT_HDR *)buffer;
+    UINT8 *pp = (UINT8 *)(p + 1);
+
+    p->len    = HCIC_PREAMBLE_SIZE + len;
+    p->offset = sizeof(void *);
+
+    *((void **)pp) = p_cmd_cplt_cback;  /* Store command complete callback in buffer */
+    pp += sizeof(void *);               /* Skip over callback pointer */
+
+    UINT16_TO_STREAM (pp, HCI_GRP_VENDOR_SPECIFIC | opcode);
+    UINT8_TO_STREAM  (pp, len);
+    ARRAY_TO_STREAM  (pp, p_data, len);
+
+    btu_hcif_send_cmd (LOCAL_BR_EDR_CONTROLLER_ID,  p);
+}
diff --git a/rtkbt/code/bt/stack/hid/hid_conn.h b/rtkbt/code/bt/stack/hid/hid_conn.h
new file mode 100755
index 0000000..211efbd
--- /dev/null
+++ b/rtkbt/code/bt/stack/hid/hid_conn.h
@@ -0,0 +1,69 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2002-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains HID connection internal definitions
+ *
+ ******************************************************************************/
+
+#ifndef HID_CONN_H
+#define HID_CONN_H
+
+#include "osi/include/alarm.h"
+
+/* Define the HID Connection Block
+*/
+typedef struct hid_conn
+{
+#define HID_CONN_STATE_UNUSED           (0)
+#define HID_CONN_STATE_CONNECTING_CTRL  (1)
+#define HID_CONN_STATE_CONNECTING_INTR  (2)
+#define HID_CONN_STATE_CONFIG           (3)
+#define HID_CONN_STATE_CONNECTED        (4)
+#define HID_CONN_STATE_DISCONNECTING    (5)
+#define HID_CONN_STATE_SECURITY         (6)
+
+    UINT8             conn_state;
+
+#define HID_CONN_FLAGS_IS_ORIG              (0x01)
+#define HID_CONN_FLAGS_HIS_CTRL_CFG_DONE    (0x02)
+#define HID_CONN_FLAGS_MY_CTRL_CFG_DONE     (0x04)
+#define HID_CONN_FLAGS_HIS_INTR_CFG_DONE    (0x08)
+#define HID_CONN_FLAGS_MY_INTR_CFG_DONE     (0x10)
+#define HID_CONN_FLAGS_ALL_CONFIGURED       (0x1E)        /* All the config done */
+#define HID_CONN_FLAGS_CONGESTED            (0x20)
+#define HID_CONN_FLAGS_INACTIVE             (0x40)
+
+    UINT8             conn_flags;
+
+    UINT8             ctrl_id;
+    UINT16            ctrl_cid;
+    UINT16            intr_cid;
+    UINT16            rem_mtu_size;
+    UINT16            disc_reason;                       /* Reason for disconnecting (for HID_HDEV_EVT_CLOSE) */
+    alarm_t           *process_repage_timer;
+} tHID_CONN;
+
+#define HID_SEC_CHN   1
+#define HID_NOSEC_CHN 2
+
+#define HIDD_SEC_CHN    3
+#define HIDD_NOSEC_CHN  4
+
+#endif
diff --git a/rtkbt/code/bt/stack/hid/hidh_api.c b/rtkbt/code/bt/stack/hid/hidh_api.c
new file mode 100755
index 0000000..db173f1
--- /dev/null
+++ b/rtkbt/code/bt/stack/hid/hidh_api.c
@@ -0,0 +1,599 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2002-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains the HID HOST API entry points
+ *
+ ******************************************************************************/
+
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+
+#include "bt_common.h"
+#include "bt_types.h"
+#include "hiddefs.h"
+#include "hidh_api.h"
+#include "hidh_int.h"
+#include "btm_api.h"
+#include "btu.h"
+#include "btm_int.h"
+
+#if HID_DYNAMIC_MEMORY == FALSE
+tHID_HOST_CTB   hh_cb;
+#endif
+
+static void hidh_search_callback (UINT16 sdp_result);
+
+/*******************************************************************************
+**
+** Function         HID_HostGetSDPRecord
+**
+** Description      This function reads the device SDP record
+**
+** Returns          tHID_STATUS
+**
+*******************************************************************************/
+tHID_STATUS HID_HostGetSDPRecord ( BD_ADDR addr, tSDP_DISCOVERY_DB *p_db, UINT32 db_len,
+                                   tHID_HOST_SDP_CALLBACK *sdp_cback )
+{
+    tSDP_UUID   uuid_list;
+
+    if( hh_cb.sdp_busy )
+        return HID_ERR_SDP_BUSY;
+
+    uuid_list.len = 2;
+    uuid_list.uu.uuid16 = UUID_SERVCLASS_HUMAN_INTERFACE;
+
+    hh_cb.p_sdp_db = p_db;
+    SDP_InitDiscoveryDb (p_db, db_len, 1, &uuid_list, 0, NULL);
+
+    if (SDP_ServiceSearchRequest (addr, p_db, hidh_search_callback))
+    {
+        hh_cb.sdp_cback = sdp_cback ;
+        hh_cb.sdp_busy = TRUE;
+        return HID_SUCCESS;
+    }
+    else
+        return HID_ERR_NO_RESOURCES;
+}
+
+void hidh_get_str_attr( tSDP_DISC_REC *p_rec, UINT16 attr_id, UINT16 max_len, char *str )
+{
+    tSDP_DISC_ATTR          *p_attr;
+    UINT16                  name_len;
+
+    if ((p_attr = SDP_FindAttributeInRec(p_rec, attr_id)) != NULL)
+    {
+        if((name_len = SDP_DISC_ATTR_LEN(p_attr->attr_len_type)) < max_len )
+        {
+            memcpy( str, (char *) p_attr->attr_value.v.array, name_len );
+            str[name_len] = '\0';
+        }
+        else
+        {
+            memcpy( str, (char *) p_attr->attr_value.v.array, max_len-1 );
+            str[max_len-1] = '\0';
+        }
+    }
+    else
+        str[0] = '\0';
+}
+
+
+static void hidh_search_callback (UINT16 sdp_result)
+{
+    tSDP_DISCOVERY_DB       *p_db = hh_cb.p_sdp_db;
+    tSDP_DISC_REC           *p_rec;
+    tSDP_DISC_ATTR          *p_attr, *p_subattr1, *p_subattr2, *p_repdesc;
+    tBT_UUID                hid_uuid;
+    tHID_DEV_SDP_INFO       *p_nvi = &hh_cb.sdp_rec;
+    UINT16                  attr_mask = 0;
+
+    hid_uuid.len       = LEN_UUID_16;
+    hid_uuid.uu.uuid16 = UUID_SERVCLASS_HUMAN_INTERFACE;
+
+    hh_cb.sdp_busy = FALSE;
+
+    if (sdp_result != SDP_SUCCESS)
+    {
+        hh_cb.sdp_cback(sdp_result, 0, NULL);
+        return;
+    }
+
+    if ((p_rec = SDP_FindServiceUUIDInDb (p_db, &hid_uuid, NULL)) == NULL)
+    {
+        hh_cb.sdp_cback(HID_SDP_NO_SERV_UUID, 0, NULL);
+        return;
+    }
+
+    memset (&hh_cb.sdp_rec, 0, sizeof( tHID_DEV_SDP_INFO ));
+
+    /* First, verify the mandatory fields we care about */
+    if (((p_attr = SDP_FindAttributeInRec (p_rec, ATTR_ID_HID_DESCRIPTOR_LIST)) == NULL)
+     || (SDP_DISC_ATTR_TYPE(p_attr->attr_len_type) != DATA_ELE_SEQ_DESC_TYPE)
+     || ((p_subattr1 = p_attr->attr_value.v.p_sub_attr) == NULL)
+     || (SDP_DISC_ATTR_TYPE(p_subattr1->attr_len_type) != DATA_ELE_SEQ_DESC_TYPE)
+     || ((p_subattr2 = p_subattr1->attr_value.v.p_sub_attr) == NULL)
+     || ((p_repdesc = p_subattr2->p_next_attr) == NULL)
+     || (SDP_DISC_ATTR_TYPE(p_repdesc->attr_len_type) != TEXT_STR_DESC_TYPE))
+    {
+        hh_cb.sdp_cback(HID_SDP_MANDATORY_MISSING, 0, NULL);
+        return;
+    }
+
+    if ((p_nvi->dscp_info.dl_len = SDP_DISC_ATTR_LEN(p_repdesc->attr_len_type)) != 0)
+        p_nvi->dscp_info.dsc_list = (UINT8 *) &p_repdesc->attr_value;
+
+    if (((p_attr = SDP_FindAttributeInRec (p_rec, ATTR_ID_HID_VIRTUAL_CABLE)) != NULL) &&
+        (p_attr->attr_value.v.u8) )
+    {
+        attr_mask |= HID_VIRTUAL_CABLE;
+    }
+
+    if (((p_attr = SDP_FindAttributeInRec (p_rec, ATTR_ID_HID_RECONNECT_INITIATE)) != NULL) &&
+        (p_attr->attr_value.v.u8) )
+    {
+        attr_mask |= HID_RECONN_INIT;
+    }
+
+    if (((p_attr = SDP_FindAttributeInRec (p_rec, ATTR_ID_HID_NORMALLY_CONNECTABLE)) != NULL) &&
+        (p_attr->attr_value.v.u8) )
+    {
+        attr_mask |= HID_NORMALLY_CONNECTABLE;
+    }
+
+    if (((p_attr = SDP_FindAttributeInRec (p_rec, ATTR_ID_HID_SDP_DISABLE)) != NULL)&&
+        (p_attr->attr_value.v.u8) )
+    {
+        attr_mask |= HID_SDP_DISABLE;
+    }
+
+    if (((p_attr = SDP_FindAttributeInRec (p_rec, ATTR_ID_HID_BATTERY_POWER)) != NULL)&&
+        (p_attr->attr_value.v.u8) )
+    {
+        attr_mask |= HID_BATTERY_POWER;
+    }
+
+    if (((p_attr = SDP_FindAttributeInRec (p_rec, ATTR_ID_HID_REMOTE_WAKE)) != NULL)&&
+        (p_attr->attr_value.v.u8) )
+    {
+        attr_mask |= HID_REMOTE_WAKE;
+    }
+
+    hidh_get_str_attr( p_rec, ATTR_ID_SERVICE_NAME, HID_MAX_SVC_NAME_LEN, p_nvi->svc_name );
+    hidh_get_str_attr( p_rec, ATTR_ID_SERVICE_DESCRIPTION, HID_MAX_SVC_DESCR_LEN, p_nvi->svc_descr );
+    hidh_get_str_attr( p_rec, ATTR_ID_PROVIDER_NAME, HID_MAX_PROV_NAME_LEN, p_nvi->prov_name );
+
+    if (((p_attr = SDP_FindAttributeInRec (p_rec, ATTR_ID_HID_DEVICE_RELNUM)) != NULL))
+    {
+        p_nvi->rel_num = p_attr->attr_value.v.u16;
+    }
+
+    if (((p_attr = SDP_FindAttributeInRec (p_rec, ATTR_ID_HID_COUNTRY_CODE)) != NULL))
+    {
+        p_nvi->ctry_code = p_attr->attr_value.v.u8;
+    }
+
+    if (((p_attr = SDP_FindAttributeInRec (p_rec, ATTR_ID_HID_DEVICE_SUBCLASS)) != NULL))
+    {
+        p_nvi->sub_class = p_attr->attr_value.v.u8;
+    }
+
+    if (((p_attr = SDP_FindAttributeInRec (p_rec, ATTR_ID_HID_PARSER_VERSION)) != NULL))
+    {
+        p_nvi->hpars_ver = p_attr->attr_value.v.u16;
+    }
+
+    if (((p_attr = SDP_FindAttributeInRec (p_rec, ATTR_ID_HID_LINK_SUPERVISION_TO)) != NULL))
+    {
+        attr_mask |= HID_SUP_TOUT_AVLBL;
+        p_nvi->sup_timeout = p_attr->attr_value.v.u16;
+    }
+
+    if (((p_attr = SDP_FindAttributeInRec (p_rec, ATTR_ID_HID_SSR_HOST_MAX_LAT)) != NULL))
+    {
+        attr_mask |= HID_SSR_MAX_LATENCY;
+        p_nvi->ssr_max_latency = p_attr->attr_value.v.u16;
+    }
+    else
+        p_nvi->ssr_max_latency = HID_SSR_PARAM_INVALID;
+
+    if (((p_attr = SDP_FindAttributeInRec (p_rec, ATTR_ID_HID_SSR_HOST_MIN_TOUT)) != NULL))
+    {
+        attr_mask |= HID_SSR_MIN_TOUT;
+        p_nvi->ssr_min_tout = p_attr->attr_value.v.u16;
+    }
+    else
+        p_nvi->ssr_min_tout = HID_SSR_PARAM_INVALID;
+
+    hh_cb.sdp_rec.p_sdp_layer_rec = p_rec;
+    hh_cb.sdp_cback(SDP_SUCCESS, attr_mask, &hh_cb.sdp_rec);
+}
+
+
+/*******************************************************************************
+**
+** Function         HID_HostInit
+**
+** Description      This function initializes the control block and trace variable
+**
+** Returns          void
+**
+*******************************************************************************/
+void HID_HostInit (void)
+{
+    memset(&hh_cb, 0, sizeof(tHID_HOST_CTB));
+
+    for (size_t i = 0; i < HID_HOST_MAX_DEVICES; i++) {
+        hh_cb.devices[i].conn.process_repage_timer =
+          alarm_new("hid_devices_conn.process_repage_timer");
+    }
+
+#if defined(HID_INITIAL_TRACE_LEVEL)
+    hh_cb.trace_level = HID_INITIAL_TRACE_LEVEL;
+#else
+    hh_cb.trace_level = BT_TRACE_LEVEL_NONE;
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         HID_HostSetTraceLevel
+**
+** Description      This function sets the trace level for HID Host. If called with
+**                  a value of 0xFF, it simply reads the current trace level.
+**
+** Returns          the new (current) trace level
+**
+*******************************************************************************/
+UINT8 HID_HostSetTraceLevel (UINT8 new_level)
+{
+    if (new_level != 0xFF)
+        hh_cb.trace_level = new_level;
+
+    return (hh_cb.trace_level);
+}
+
+/*******************************************************************************
+**
+** Function         HID_HostRegister
+**
+** Description      This function registers HID-Host with lower layers
+**
+** Returns          tHID_STATUS
+**
+*******************************************************************************/
+tHID_STATUS HID_HostRegister (tHID_HOST_DEV_CALLBACK *dev_cback)
+{
+    tHID_STATUS st;
+
+    if( hh_cb.reg_flag )
+        return HID_ERR_ALREADY_REGISTERED;
+
+    if( dev_cback == NULL )
+        return HID_ERR_INVALID_PARAM;
+
+    /* Register with L2CAP */
+    if( (st = hidh_conn_reg()) != HID_SUCCESS )
+    {
+        return st;
+    }
+
+    hh_cb.callback = dev_cback ;
+    hh_cb.reg_flag = TRUE;
+
+    return (HID_SUCCESS);
+}
+
+/*******************************************************************************
+**
+** Function         HID_HostDeregister
+**
+** Description      This function is called when the host is about power down.
+**
+** Returns          tHID_STATUS
+**
+*******************************************************************************/
+tHID_STATUS HID_HostDeregister(void)
+{
+    UINT8 i;
+
+    if( !hh_cb.reg_flag )
+        return (HID_ERR_NOT_REGISTERED);
+
+    for( i=0; i<HID_HOST_MAX_DEVICES; i++ )
+    {
+        HID_HostRemoveDev( i ) ;
+    }
+
+    hidh_conn_dereg();
+    hh_cb.reg_flag = FALSE;
+
+    return (HID_SUCCESS) ;
+}
+
+/*******************************************************************************
+**
+** Function         HID_HostAddDev
+**
+** Description      This is called so HID-host may manage this device.
+**
+** Returns          tHID_STATUS
+**
+*******************************************************************************/
+tHID_STATUS HID_HostAddDev ( BD_ADDR addr, UINT16 attr_mask, UINT8 *handle )
+{
+    int i;
+    /* Find an entry for this device in hh_cb.devices array */
+    if( !hh_cb.reg_flag )
+        return (HID_ERR_NOT_REGISTERED);
+
+    for( i=0; i<HID_HOST_MAX_DEVICES; i++)
+    {
+        if((hh_cb.devices[i].in_use) &&
+           (!memcmp(addr, hh_cb.devices[i].addr, BD_ADDR_LEN)))
+            break;
+    }
+
+    if (i== HID_HOST_MAX_DEVICES )
+    {
+        for( i=0; i<HID_HOST_MAX_DEVICES; i++)
+        {
+            if( !hh_cb.devices[i].in_use)
+                break;
+        }
+    }
+
+    if( i==HID_HOST_MAX_DEVICES )
+        return HID_ERR_NO_RESOURCES;
+
+    if (!hh_cb.devices[i].in_use)
+    {
+        hh_cb.devices[i].in_use = TRUE;
+        memcpy( hh_cb.devices[i].addr, addr, sizeof( BD_ADDR ) ) ;
+        hh_cb.devices[i].state = HID_DEV_NO_CONN;
+        hh_cb.devices[i].conn_tries = 0 ;
+    }
+
+    if (attr_mask != HID_ATTR_MASK_IGNORE)
+        hh_cb.devices[i].attr_mask = attr_mask;
+
+    *handle = i;
+
+    return (HID_SUCCESS);
+}
+
+
+/*******************************************************************************
+**
+** Function         HID_HostRemoveDev
+**
+** Description      This removes the device from list devices that host has to manage.
+**
+** Returns          tHID_STATUS
+**
+*******************************************************************************/
+tHID_STATUS HID_HostRemoveDev ( UINT8 dev_handle )
+{
+    if( !hh_cb.reg_flag )
+        return (HID_ERR_NOT_REGISTERED);
+
+    if( (dev_handle >= HID_HOST_MAX_DEVICES) || (!hh_cb.devices[dev_handle].in_use) )
+        return HID_ERR_INVALID_PARAM;
+
+    HID_HostCloseDev( dev_handle ) ;
+    hh_cb.devices[dev_handle].in_use = FALSE;
+    hh_cb.devices[dev_handle].conn.conn_state = HID_CONN_STATE_UNUSED;
+    hh_cb.devices[dev_handle].conn.ctrl_cid = hh_cb.devices[dev_handle].conn.intr_cid = 0;
+    hh_cb.devices[dev_handle].attr_mask = 0;
+    return HID_SUCCESS;
+}
+
+/*******************************************************************************
+**
+** Function         HID_HostOpenDev
+**
+** Description      This function is called when the user wants to initiate a
+**                  connection attempt to a device.
+**
+** Returns          void
+**
+*******************************************************************************/
+tHID_STATUS HID_HostOpenDev ( UINT8 dev_handle )
+{
+    if( !hh_cb.reg_flag )
+        return (HID_ERR_NOT_REGISTERED);
+
+    if( (dev_handle >= HID_HOST_MAX_DEVICES) || (!hh_cb.devices[dev_handle].in_use) )
+        return HID_ERR_INVALID_PARAM;
+
+    if( hh_cb.devices[dev_handle].state != HID_DEV_NO_CONN )
+        return HID_ERR_ALREADY_CONN;
+
+    hh_cb.devices[dev_handle].conn_tries = 1;
+    return hidh_conn_initiate( dev_handle );
+}
+
+/*******************************************************************************
+**
+** Function         HID_HostWriteDev
+**
+** Description      This function is called when the host has a report to send.
+**
+**                  report_id: is only used on GET_REPORT transaction if is specified.
+**                              only valid when it's a non-zero value.
+**
+** Returns          void
+**
+*******************************************************************************/
+tHID_STATUS HID_HostWriteDev( UINT8 dev_handle, UINT8 t_type,
+                              UINT8 param, UINT16 data, UINT8 report_id, BT_HDR *pbuf  )
+{
+    tHID_STATUS status = HID_SUCCESS;
+
+    if( !hh_cb.reg_flag )
+    {
+        HIDH_TRACE_ERROR("HID_ERR_NOT_REGISTERED");
+        status = HID_ERR_NOT_REGISTERED;
+    }
+
+    if( (dev_handle >= HID_HOST_MAX_DEVICES) || (!hh_cb.devices[dev_handle].in_use) )
+    {
+        HIDH_TRACE_ERROR("HID_ERR_INVALID_PARAM");
+        status = HID_ERR_INVALID_PARAM;
+    }
+
+    else if( hh_cb.devices[dev_handle].state != HID_DEV_CONNECTED )
+    {
+        HIDH_TRACE_ERROR("HID_ERR_NO_CONNECTION dev_handle %d", dev_handle);
+        status = HID_ERR_NO_CONNECTION;
+    }
+
+    if (status != HID_SUCCESS)
+        osi_free(pbuf);
+    else
+        status = hidh_conn_snd_data(dev_handle, t_type, param, data, report_id, pbuf);
+
+    return status;
+}
+
+/*******************************************************************************
+**
+** Function         HID_HostCloseDev
+**
+** Description      This function disconnects the device.
+**
+** Returns          void
+**
+*******************************************************************************/
+tHID_STATUS HID_HostCloseDev( UINT8 dev_handle )
+{
+    if( !hh_cb.reg_flag )
+        return (HID_ERR_NOT_REGISTERED);
+
+    if( (dev_handle >= HID_HOST_MAX_DEVICES) || (!hh_cb.devices[dev_handle].in_use) )
+        return HID_ERR_INVALID_PARAM;
+
+    if( hh_cb.devices[dev_handle].state != HID_DEV_CONNECTED )
+        return HID_ERR_NO_CONNECTION;
+
+    alarm_cancel(hh_cb.devices[dev_handle].conn.process_repage_timer);
+    hh_cb.devices[dev_handle].conn_tries = HID_HOST_MAX_CONN_RETRY+1;
+    return hidh_conn_disconnect( dev_handle );
+}
+
+tHID_STATUS HID_HostSetSecurityLevel( char serv_name[], UINT8 sec_lvl )
+{
+    if (!BTM_SetSecurityLevel (FALSE, serv_name, BTM_SEC_SERVICE_HIDH_SEC_CTRL,
+                               sec_lvl, HID_PSM_CONTROL, BTM_SEC_PROTO_HID, HID_SEC_CHN))
+    {
+        HIDH_TRACE_ERROR ("Security Registration 1 failed");
+        return (HID_ERR_NO_RESOURCES);
+    }
+
+    if (!BTM_SetSecurityLevel (TRUE, serv_name, BTM_SEC_SERVICE_HIDH_SEC_CTRL,
+                               sec_lvl, HID_PSM_CONTROL, BTM_SEC_PROTO_HID, HID_SEC_CHN))
+    {
+        HIDH_TRACE_ERROR ("Security Registration 2 failed");
+        return (HID_ERR_NO_RESOURCES);
+    }
+
+    if (!BTM_SetSecurityLevel (FALSE, serv_name, BTM_SEC_SERVICE_HIDH_NOSEC_CTRL,
+                               BTM_SEC_NONE, HID_PSM_CONTROL, BTM_SEC_PROTO_HID, HID_NOSEC_CHN))
+    {
+        HIDH_TRACE_ERROR ("Security Registration 3 failed");
+        return (HID_ERR_NO_RESOURCES);
+    }
+
+    if (!BTM_SetSecurityLevel (TRUE, serv_name, BTM_SEC_SERVICE_HIDH_NOSEC_CTRL,
+                               BTM_SEC_NONE, HID_PSM_CONTROL, BTM_SEC_PROTO_HID, HID_NOSEC_CHN))
+    {
+        HIDH_TRACE_ERROR ("Security Registration 4 failed");
+        return (HID_ERR_NO_RESOURCES);
+    }
+
+    if (!BTM_SetSecurityLevel (TRUE, serv_name, BTM_SEC_SERVICE_HIDH_INTR,
+                               BTM_SEC_NONE, HID_PSM_INTERRUPT, BTM_SEC_PROTO_HID, 0))
+    {
+        HIDH_TRACE_ERROR ("Security Registration 5 failed");
+        return (HID_ERR_NO_RESOURCES);
+    }
+
+    if (!BTM_SetSecurityLevel (FALSE, serv_name, BTM_SEC_SERVICE_HIDH_INTR,
+                               BTM_SEC_NONE, HID_PSM_INTERRUPT, BTM_SEC_PROTO_HID, 0))
+    {
+        HIDH_TRACE_ERROR ("Security Registration 6 failed");
+        return (HID_ERR_NO_RESOURCES);
+    }
+
+    return( HID_SUCCESS );
+}
+
+/******************************************************************************
+**
+** Function         hid_known_hid_device
+**
+** Description      check if this device is  of type HID Device
+**
+** Returns          TRUE if device is HID Device else FALSE
+**
+*******************************************************************************/
+BOOLEAN hid_known_hid_device (BD_ADDR bd_addr)
+{
+    UINT8 i;
+    tBTM_INQ_INFO *p_inq_info = BTM_InqDbRead(bd_addr);
+
+     if ( !hh_cb.reg_flag )
+        return FALSE;
+
+    /* First  check for class of device , if Inq DB has information about this device*/
+    if (p_inq_info != NULL)
+    {
+        /* Check if remote major device class is of type BTM_COD_MAJOR_PERIPHERAL */
+        if ((p_inq_info->results.dev_class[1] & BTM_COD_MAJOR_CLASS_MASK)
+            == BTM_COD_MAJOR_PERIPHERAL )
+        {
+            HIDH_TRACE_DEBUG("hid_known_hid_device:dev found in InqDB & COD matches HID dev");
+            return TRUE;
+        }
+    }
+    else
+    {
+        /* Look for this device in security device DB */
+        tBTM_SEC_DEV_REC  *p_dev_rec = btm_find_dev (bd_addr);
+        if ((p_dev_rec != NULL) &&
+            ((p_dev_rec->dev_class[1] & BTM_COD_MAJOR_CLASS_MASK) == BTM_COD_MAJOR_PERIPHERAL ))
+        {
+            HIDH_TRACE_DEBUG("hid_known_hid_device:dev found in SecDevDB & COD matches HID dev");
+            return TRUE;
+        }
+    }
+
+    /* Find an entry for this device in hh_cb.devices array */
+     for ( i=0; i<HID_HOST_MAX_DEVICES; i++)
+     {
+         if ((hh_cb.devices[i].in_use) &&
+            (memcmp(bd_addr, hh_cb.devices[i].addr, BD_ADDR_LEN) == 0))
+             return TRUE;
+     }
+    /* Check if this device is marked as HID Device in IOP Dev */
+    HIDH_TRACE_DEBUG("hid_known_hid_device:remote is not HID device");
+    return FALSE;
+}
diff --git a/rtkbt/code/bt/stack/hid/hidh_conn.c b/rtkbt/code/bt/stack/hid/hidh_conn.c
new file mode 100755
index 0000000..ffbafe4
--- /dev/null
+++ b/rtkbt/code/bt/stack/hid/hidh_conn.c
@@ -0,0 +1,1111 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2002-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  this file contains the connection interface functions
+ *
+ ******************************************************************************/
+
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+
+
+#include "bt_common.h"
+#include "bt_types.h"
+
+#include "l2cdefs.h"
+#include "l2c_api.h"
+
+#include "btu.h"
+#include "btm_api.h"
+#include "btm_int.h"
+
+#include "hiddefs.h"
+
+#include "hidh_api.h"
+#include "hidh_int.h"
+#include "bt_utils.h"
+
+#include "osi/include/osi.h"
+
+
+extern fixed_queue_t *btu_general_alarm_queue;
+
+static UINT8 find_conn_by_cid (UINT16 cid);
+static void hidh_conn_retry (UINT8 dhandle);
+
+/********************************************************************************/
+/*              L O C A L    F U N C T I O N     P R O T O T Y P E S            */
+/********************************************************************************/
+static void hidh_l2cif_connect_ind (BD_ADDR  bd_addr, UINT16 l2cap_cid,
+                                    UINT16 psm, UINT8 l2cap_id);
+static void hidh_l2cif_connect_cfm (UINT16 l2cap_cid, UINT16 result);
+static void hidh_l2cif_config_ind (UINT16 l2cap_cid, tL2CAP_CFG_INFO *p_cfg);
+static void hidh_l2cif_config_cfm (UINT16 l2cap_cid, tL2CAP_CFG_INFO *p_cfg);
+static void hidh_l2cif_disconnect_ind (UINT16 l2cap_cid, BOOLEAN ack_needed);
+static void hidh_l2cif_data_ind (UINT16 l2cap_cid, BT_HDR *p_msg);
+static void hidh_l2cif_disconnect_cfm (UINT16 l2cap_cid, UINT16 result);
+static void hidh_l2cif_cong_ind (UINT16 l2cap_cid, BOOLEAN congested);
+
+static const tL2CAP_APPL_INFO hst_reg_info =
+{
+    hidh_l2cif_connect_ind,
+    hidh_l2cif_connect_cfm,
+    NULL,
+    hidh_l2cif_config_ind,
+    hidh_l2cif_config_cfm,
+    hidh_l2cif_disconnect_ind,
+    hidh_l2cif_disconnect_cfm,
+    NULL,
+    hidh_l2cif_data_ind,
+    hidh_l2cif_cong_ind,
+    NULL                        /* tL2CA_TX_COMPLETE_CB */
+};
+
+/*******************************************************************************
+**
+** Function         hidh_l2cif_reg
+**
+** Description      This function initializes the SDP unit.
+**
+** Returns          void
+**
+*******************************************************************************/
+tHID_STATUS hidh_conn_reg (void)
+{
+    int xx;
+
+    /* Initialize the L2CAP configuration. We only care about MTU and flush */
+    memset(&hh_cb.l2cap_cfg, 0, sizeof(tL2CAP_CFG_INFO));
+
+    hh_cb.l2cap_cfg.mtu_present          = TRUE;
+    hh_cb.l2cap_cfg.mtu                  = HID_HOST_MTU;
+    hh_cb.l2cap_cfg.flush_to_present     = TRUE;
+    hh_cb.l2cap_cfg.flush_to             = HID_HOST_FLUSH_TO;
+
+    /* Now, register with L2CAP */
+    if (!L2CA_Register (HID_PSM_CONTROL, (tL2CAP_APPL_INFO *) &hst_reg_info))
+    {
+        HIDH_TRACE_ERROR ("HID-Host Control Registration failed");
+        return (HID_ERR_L2CAP_FAILED) ;
+    }
+    if (!L2CA_Register (HID_PSM_INTERRUPT, (tL2CAP_APPL_INFO *) &hst_reg_info))
+    {
+        L2CA_Deregister( HID_PSM_CONTROL ) ;
+        HIDH_TRACE_ERROR ("HID-Host Interrupt Registration failed");
+        return (HID_ERR_L2CAP_FAILED) ;
+    }
+
+    for (xx = 0; xx < HID_HOST_MAX_DEVICES; xx++)
+    {
+        hh_cb.devices[xx].in_use = FALSE ;
+        hh_cb.devices[xx].conn.conn_state = HID_CONN_STATE_UNUSED;
+    }
+
+    return (HID_SUCCESS);
+}
+
+/*******************************************************************************
+**
+** Function         hidh_conn_disconnect
+**
+** Description      This function disconnects a connection.
+**
+** Returns          TRUE if disconnect started, FALSE if already disconnected
+**
+*******************************************************************************/
+tHID_STATUS hidh_conn_disconnect (UINT8 dhandle)
+{
+    tHID_CONN *p_hcon = &hh_cb.devices[dhandle].conn;
+
+    HIDH_TRACE_EVENT ("HID-Host disconnect");
+
+    if ((p_hcon->ctrl_cid != 0) || (p_hcon->intr_cid != 0))
+    {
+        p_hcon->conn_state = HID_CONN_STATE_DISCONNECTING;
+
+        /* Set l2cap idle timeout to 0 (so ACL link is disconnected
+         * immediately after last channel is closed) */
+        L2CA_SetIdleTimeoutByBdAddr(hh_cb.devices[dhandle].addr, 0, BT_TRANSPORT_BR_EDR);
+        /* Disconnect both interrupt and control channels */
+        if (p_hcon->intr_cid)
+            L2CA_DisconnectReq (p_hcon->intr_cid);
+        else if (p_hcon->ctrl_cid)
+            L2CA_DisconnectReq (p_hcon->ctrl_cid);
+    }
+    else
+    {
+        p_hcon->conn_state = HID_CONN_STATE_UNUSED;
+    }
+
+    return (HID_SUCCESS);
+}
+
+/*******************************************************************************
+**
+** Function         hidh_sec_check_complete_term
+**
+** Description      HID security check complete callback function.
+**
+** Returns          Send L2CA_ConnectRsp OK if secutiry check succeed; otherwise
+**                  send security block L2C connection response.
+**
+*******************************************************************************/
+void hidh_sec_check_complete_term (BD_ADDR bd_addr, tBT_TRANSPORT transport, void *p_ref_data, UINT8 res)
+{
+    tHID_HOST_DEV_CTB *p_dev= (tHID_HOST_DEV_CTB *) p_ref_data;
+    UNUSED(bd_addr);
+    UNUSED (transport);
+
+    if( res == BTM_SUCCESS && p_dev->conn.conn_state == HID_CONN_STATE_SECURITY )
+    {
+        p_dev->conn.disc_reason = HID_SUCCESS;  /* Authentication passed. Reset disc_reason (from HID_ERR_AUTH_FAILED) */
+
+        p_dev->conn.conn_state = HID_CONN_STATE_CONNECTING_INTR;
+
+        /* Send response to the L2CAP layer. */
+        L2CA_ConnectRsp (p_dev->addr, p_dev->conn.ctrl_id, p_dev->conn.ctrl_cid, L2CAP_CONN_OK, L2CAP_CONN_OK);
+
+        /* Send a Configuration Request. */
+        L2CA_ConfigReq (p_dev->conn.ctrl_cid, &hh_cb.l2cap_cfg);
+
+    }
+    /* security check fail */
+    else if (res != BTM_SUCCESS)
+    {
+        p_dev->conn.disc_reason = HID_ERR_AUTH_FAILED;      /* Save reason for disconnecting */
+        p_dev->conn.conn_state = HID_CONN_STATE_UNUSED;
+        L2CA_ConnectRsp (p_dev->addr, p_dev->conn.ctrl_id, p_dev->conn.ctrl_cid, L2CAP_CONN_SECURITY_BLOCK, L2CAP_CONN_OK);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         hidh_l2cif_connect_ind
+**
+** Description      This function handles an inbound connection indication
+**                  from L2CAP. This is the case where we are acting as a
+**                  server.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void hidh_l2cif_connect_ind (BD_ADDR  bd_addr, UINT16 l2cap_cid, UINT16 psm, UINT8 l2cap_id)
+{
+    tHID_CONN    *p_hcon;
+    BOOLEAN      bAccept = TRUE;
+    UINT8        i = HID_HOST_MAX_DEVICES;
+    tHID_HOST_DEV_CTB *p_dev;
+
+    HIDH_TRACE_EVENT ("HID-Host Rcvd L2CAP conn ind, PSM: 0x%04x  CID 0x%x", psm, l2cap_cid);
+
+    /* always add incoming connection device into HID database by default */
+    if (HID_HostAddDev(bd_addr, HID_SEC_REQUIRED, &i) != HID_SUCCESS)
+    {
+        L2CA_ConnectRsp (bd_addr, l2cap_id, l2cap_cid, L2CAP_CONN_SECURITY_BLOCK, 0);
+        return;
+    }
+
+    p_hcon = &hh_cb.devices[i].conn;
+    p_dev  = &hh_cb.devices[i];
+
+    /* Check we are in the correct state for this */
+    if (psm == HID_PSM_INTERRUPT)
+    {
+        if (p_hcon->ctrl_cid == 0)
+        {
+            HIDH_TRACE_WARNING ("HID-Host Rcvd INTR L2CAP conn ind, but no CTL channel");
+            bAccept = FALSE;
+        }
+        if (p_hcon->conn_state != HID_CONN_STATE_CONNECTING_INTR)
+        {
+            HIDH_TRACE_WARNING ("HID-Host Rcvd INTR L2CAP conn ind, wrong state: %d",
+                                 p_hcon->conn_state);
+            bAccept = FALSE;
+        }
+    }
+    else /* CTRL channel */
+    {
+#if defined(HID_HOST_ACPT_NEW_CONN) && (HID_HOST_ACPT_NEW_CONN == TRUE)
+        p_hcon->ctrl_cid = p_hcon->intr_cid = 0;
+        p_hcon->conn_state = HID_CONN_STATE_UNUSED;
+#else
+        if (p_hcon->conn_state != HID_CONN_STATE_UNUSED)
+        {
+            HIDH_TRACE_WARNING ("HID-Host - Rcvd CTL L2CAP conn ind, wrong state: %d",
+                                 p_hcon->conn_state);
+            bAccept = FALSE;
+        }
+#endif
+    }
+
+    if (!bAccept)
+    {
+        L2CA_ConnectRsp (bd_addr, l2cap_id, l2cap_cid, L2CAP_CONN_NO_RESOURCES, 0);
+        return;
+    }
+
+    if (psm == HID_PSM_CONTROL)
+    {
+        p_hcon->conn_flags = 0;
+        p_hcon->ctrl_cid   = l2cap_cid;
+        p_hcon->ctrl_id    = l2cap_id;
+        p_hcon->disc_reason = HID_L2CAP_CONN_FAIL;  /* In case disconnection occurs before security is completed, then set CLOSE_EVT reason code to 'connection failure' */
+
+        p_hcon->conn_state = HID_CONN_STATE_SECURITY;
+        if(btm_sec_mx_access_request (p_dev->addr, HID_PSM_CONTROL,
+            FALSE, BTM_SEC_PROTO_HID,
+            (p_dev->attr_mask & HID_SEC_REQUIRED) ? HID_SEC_CHN : HID_NOSEC_CHN,
+            &hidh_sec_check_complete_term, p_dev) == BTM_CMD_STARTED)
+        {
+            L2CA_ConnectRsp (bd_addr, l2cap_id, l2cap_cid, L2CAP_CONN_PENDING, L2CAP_CONN_OK);
+        }
+
+        return;
+    }
+
+    /* Transition to the next appropriate state, configuration */
+    p_hcon->conn_state = HID_CONN_STATE_CONFIG;
+    p_hcon->intr_cid   = l2cap_cid;
+
+    /* Send response to the L2CAP layer. */
+    L2CA_ConnectRsp (bd_addr, l2cap_id, l2cap_cid, L2CAP_CONN_OK, L2CAP_CONN_OK);
+
+    /* Send a Configuration Request. */
+    L2CA_ConfigReq (l2cap_cid, &hh_cb.l2cap_cfg);
+
+    HIDH_TRACE_EVENT ("HID-Host Rcvd L2CAP conn ind, sent config req, PSM: 0x%04x  CID 0x%x",
+                       psm, l2cap_cid);
+}
+
+void hidh_process_repage_timer_timeout(void *data)
+{
+  uint8_t dhandle = PTR_TO_UINT(data);
+  hidh_try_repage(dhandle);
+}
+
+/*******************************************************************************
+**
+** Function         hidh_try_repage
+**
+** Description      This function processes timeout (to page device).
+**
+** Returns          void
+**
+*******************************************************************************/
+void hidh_try_repage(UINT8 dhandle)
+{
+    tHID_HOST_DEV_CTB *device;
+
+    hidh_conn_initiate(dhandle);
+
+    device = &hh_cb.devices[dhandle];
+    device->conn_tries++;
+
+    hh_cb.callback(dhandle, device->addr, HID_HDEV_EVT_RETRYING,
+                   device->conn_tries, NULL ) ;
+}
+
+/*******************************************************************************
+**
+** Function         hidh_sec_check_complete_orig
+**
+** Description      This function checks to see if security procedures are being
+**                  carried out or not..
+**
+** Returns          void
+**
+*******************************************************************************/
+void hidh_sec_check_complete_orig (BD_ADDR bd_addr, tBT_TRANSPORT transport, void *p_ref_data, UINT8 res)
+{
+    tHID_HOST_DEV_CTB *p_dev = (tHID_HOST_DEV_CTB *) p_ref_data;
+    UINT8 dhandle;
+    UNUSED(bd_addr);
+    UNUSED (transport);
+
+    // TODO(armansito): This kind of math to determine a device handle is way
+    // too dirty and unnecessary. Why can't |p_dev| store it's handle?
+    dhandle = (PTR_TO_UINT(p_dev) - PTR_TO_UINT(&(hh_cb.devices[0])))/ sizeof(tHID_HOST_DEV_CTB);
+    if( res == BTM_SUCCESS && p_dev->conn.conn_state == HID_CONN_STATE_SECURITY )
+    {
+        HIDH_TRACE_EVENT ("HID-Host Originator security pass.");
+        p_dev->conn.disc_reason = HID_SUCCESS;  /* Authentication passed. Reset disc_reason (from HID_ERR_AUTH_FAILED) */
+
+        /* Transition to the next appropriate state, configuration */
+        p_dev->conn.conn_state = HID_CONN_STATE_CONFIG;
+        L2CA_ConfigReq (p_dev->conn.ctrl_cid, &hh_cb.l2cap_cfg);
+        HIDH_TRACE_EVENT ("HID-Host Got Control conn cnf, sent cfg req, CID: 0x%x", p_dev->conn.ctrl_cid);
+
+    }
+
+    if( res != BTM_SUCCESS && p_dev->conn.conn_state == HID_CONN_STATE_SECURITY )
+    {
+#if (HID_HOST_MAX_CONN_RETRY > 0)
+        if( res == BTM_DEVICE_TIMEOUT )
+        {
+            if( p_dev->conn_tries <= HID_HOST_MAX_CONN_RETRY )
+            {
+                hidh_conn_retry (dhandle);
+                return;
+            }
+        }
+#endif
+        p_dev->conn.disc_reason = HID_ERR_AUTH_FAILED;      /* Save reason for disconnecting */
+        hidh_conn_disconnect(dhandle);
+    }
+
+}
+
+/*******************************************************************************
+**
+** Function         hidh_l2cif_connect_cfm
+**
+** Description      This function handles the connect confirm events
+**                  from L2CAP. This is the case when we are acting as a
+**                  client and have sent a connect request.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void hidh_l2cif_connect_cfm (UINT16 l2cap_cid, UINT16 result)
+{
+    UINT8 dhandle;
+    tHID_CONN    *p_hcon = NULL;
+    UINT32  reason;
+    tHID_HOST_DEV_CTB *p_dev = NULL;
+
+    /* Find CCB based on CID, and verify we are in a state to accept this message */
+    if( (dhandle = find_conn_by_cid(l2cap_cid)) < HID_HOST_MAX_DEVICES )
+    {
+        p_dev = &hh_cb.devices[dhandle];
+        p_hcon = &hh_cb.devices[dhandle].conn;
+    }
+
+    if ((p_hcon == NULL)
+     || (!(p_hcon->conn_flags & HID_CONN_FLAGS_IS_ORIG))
+     || ((l2cap_cid == p_hcon->ctrl_cid) && (p_hcon->conn_state != HID_CONN_STATE_CONNECTING_CTRL))
+     || ((l2cap_cid == p_hcon->intr_cid) && (p_hcon->conn_state != HID_CONN_STATE_CONNECTING_INTR)
+     && (p_hcon->conn_state != HID_CONN_STATE_DISCONNECTING)))
+    {
+        HIDH_TRACE_WARNING ("HID-Host Rcvd unexpected conn cnf, CID 0x%x ", l2cap_cid);
+        return;
+    }
+
+    if (result != L2CAP_CONN_OK)
+    {
+        if (l2cap_cid == p_hcon->ctrl_cid)
+            p_hcon->ctrl_cid = 0;
+        else
+            p_hcon->intr_cid = 0;
+
+        hidh_conn_disconnect(dhandle);
+
+#if (HID_HOST_MAX_CONN_RETRY > 0)
+        if( (hh_cb.devices[dhandle].conn_tries <= HID_HOST_MAX_CONN_RETRY) &&
+            (result == HCI_ERR_CONNECTION_TOUT || result == HCI_ERR_UNSPECIFIED ||
+             result == HCI_ERR_PAGE_TIMEOUT) )
+        {
+            hidh_conn_retry(dhandle);
+        }
+        else
+#endif
+        {
+            reason = HID_L2CAP_CONN_FAIL | (UINT32) result ;
+            hh_cb.callback( dhandle, hh_cb.devices[dhandle].addr, HID_HDEV_EVT_CLOSE, reason, NULL ) ;
+        }
+        return;
+    }
+    /* receive Control Channel connect confirmation */
+    if (l2cap_cid == p_hcon->ctrl_cid)
+    {
+        /* check security requirement */
+        p_hcon->conn_state = HID_CONN_STATE_SECURITY;
+        p_hcon->disc_reason = HID_L2CAP_CONN_FAIL;  /* In case disconnection occurs before security is completed, then set CLOSE_EVT reason code to "connection failure" */
+
+        btm_sec_mx_access_request (p_dev->addr, HID_PSM_CONTROL,
+            TRUE, BTM_SEC_PROTO_HID,
+            (p_dev->attr_mask & HID_SEC_REQUIRED) ? HID_SEC_CHN : HID_NOSEC_CHN,
+            &hidh_sec_check_complete_orig, p_dev);
+    }
+    else
+    {
+        p_hcon->conn_state = HID_CONN_STATE_CONFIG;
+        /* Send a Configuration Request. */
+        L2CA_ConfigReq (l2cap_cid, &hh_cb.l2cap_cfg);
+        HIDH_TRACE_EVENT ("HID-Host got Interrupt conn cnf, sent cfg req, CID: 0x%x", l2cap_cid);
+    }
+
+    return;
+}
+
+/*******************************************************************************
+**
+** Function         hidh_l2cif_config_ind
+**
+** Description      This function processes the L2CAP configuration indication
+**                  event.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void hidh_l2cif_config_ind (UINT16 l2cap_cid, tL2CAP_CFG_INFO *p_cfg)
+{
+    UINT8 dhandle;
+    tHID_CONN    *p_hcon = NULL;
+    UINT32  reason;
+
+    /* Find CCB based on CID */
+    if( (dhandle = find_conn_by_cid(l2cap_cid)) < HID_HOST_MAX_DEVICES )
+    {
+        p_hcon = &hh_cb.devices[dhandle].conn;
+    }
+
+    if (p_hcon == NULL)
+    {
+        HIDH_TRACE_WARNING ("HID-Host Rcvd L2CAP cfg ind, unknown CID: 0x%x", l2cap_cid);
+        return;
+    }
+
+    HIDH_TRACE_EVENT ("HID-Host Rcvd cfg ind, sent cfg cfm, CID: 0x%x", l2cap_cid);
+
+    /* Remember the remote MTU size */
+    if ((!p_cfg->mtu_present) || (p_cfg->mtu > HID_HOST_MTU))
+        p_hcon->rem_mtu_size = HID_HOST_MTU;
+    else
+        p_hcon->rem_mtu_size = p_cfg->mtu;
+
+    /* For now, always accept configuration from the other side */
+    p_cfg->flush_to_present = FALSE;
+    p_cfg->mtu_present      = FALSE;
+    p_cfg->result           = L2CAP_CFG_OK;
+
+    L2CA_ConfigRsp (l2cap_cid, p_cfg);
+
+    if (l2cap_cid == p_hcon->ctrl_cid)
+    {
+        p_hcon->conn_flags |= HID_CONN_FLAGS_HIS_CTRL_CFG_DONE;
+        if ((p_hcon->conn_flags & HID_CONN_FLAGS_IS_ORIG) &&
+           (p_hcon->conn_flags & HID_CONN_FLAGS_MY_CTRL_CFG_DONE))
+        {
+            /* Connect interrupt channel */
+            p_hcon->disc_reason = HID_L2CAP_CONN_FAIL;	/* Reset initial reason for CLOSE_EVT: Connection Attempt was made but failed */
+            if ((p_hcon->intr_cid = L2CA_ConnectReq (HID_PSM_INTERRUPT, hh_cb.devices[dhandle].addr)) == 0)
+            {
+                HIDH_TRACE_WARNING ("HID-Host INTR Originate failed");
+                reason = HID_L2CAP_REQ_FAIL ;
+                p_hcon->conn_state = HID_CONN_STATE_UNUSED;
+                hidh_conn_disconnect (dhandle);
+                hh_cb.callback( dhandle, hh_cb.devices[dhandle].addr, HID_HDEV_EVT_CLOSE, reason, NULL ) ;
+                return;
+            }
+            else
+            {
+                /* Transition to the next appropriate state, waiting for connection confirm on interrupt channel. */
+                p_hcon->conn_state = HID_CONN_STATE_CONNECTING_INTR;
+            }
+        }
+    }
+    else
+        p_hcon->conn_flags |= HID_CONN_FLAGS_HIS_INTR_CFG_DONE;
+
+    /* If all configuration is complete, change state and tell management we are up */
+    if (((p_hcon->conn_flags & HID_CONN_FLAGS_ALL_CONFIGURED) == HID_CONN_FLAGS_ALL_CONFIGURED)
+     && (p_hcon->conn_state == HID_CONN_STATE_CONFIG))
+    {
+        p_hcon->conn_state = HID_CONN_STATE_CONNECTED;
+        /* Reset disconnect reason to success, as connection successful */
+        p_hcon->disc_reason = HID_SUCCESS;
+
+        hh_cb.devices[dhandle].state = HID_DEV_CONNECTED;
+        hh_cb.callback( dhandle,  hh_cb.devices[dhandle].addr, HID_HDEV_EVT_OPEN, 0, NULL ) ;
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         hidh_l2cif_config_cfm
+**
+** Description      This function processes the L2CAP configuration confirmation
+**                  event.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void hidh_l2cif_config_cfm (UINT16 l2cap_cid, tL2CAP_CFG_INFO *p_cfg)
+{
+    UINT8 dhandle;
+    tHID_CONN    *p_hcon = NULL;
+    UINT32  reason;
+
+    HIDH_TRACE_EVENT ("HID-Host Rcvd cfg cfm, CID: 0x%x  Result: %d", l2cap_cid, p_cfg->result);
+
+    /* Find CCB based on CID */
+    if( (dhandle = find_conn_by_cid(l2cap_cid)) < HID_HOST_MAX_DEVICES )
+        p_hcon = &hh_cb.devices[dhandle].conn;
+
+    if (p_hcon == NULL)
+    {
+        HIDH_TRACE_WARNING ("HID-Host Rcvd L2CAP cfg ind, unknown CID: 0x%x", l2cap_cid);
+        return;
+    }
+
+    /* If configuration failed, disconnect the channel(s) */
+    if (p_cfg->result != L2CAP_CFG_OK)
+    {
+        hidh_conn_disconnect (dhandle);
+        reason = HID_L2CAP_CFG_FAIL | (UINT32) p_cfg->result ;
+        hh_cb.callback( dhandle, hh_cb.devices[dhandle].addr, HID_HDEV_EVT_CLOSE, reason, NULL ) ;
+        return;
+    }
+
+    if (l2cap_cid == p_hcon->ctrl_cid)
+    {
+        p_hcon->conn_flags |= HID_CONN_FLAGS_MY_CTRL_CFG_DONE;
+        if ((p_hcon->conn_flags & HID_CONN_FLAGS_IS_ORIG) &&
+           (p_hcon->conn_flags & HID_CONN_FLAGS_HIS_CTRL_CFG_DONE))
+        {
+            /* Connect interrupt channel */
+            p_hcon->disc_reason = HID_L2CAP_CONN_FAIL;  /* Reset initial reason for CLOSE_EVT: Connection Attempt was made but failed */
+            if ((p_hcon->intr_cid = L2CA_ConnectReq (HID_PSM_INTERRUPT, hh_cb.devices[dhandle].addr)) == 0)
+            {
+                HIDH_TRACE_WARNING ("HID-Host INTR Originate failed");
+                reason = HID_L2CAP_REQ_FAIL ;
+                p_hcon->conn_state = HID_CONN_STATE_UNUSED;
+                hidh_conn_disconnect (dhandle);
+                hh_cb.callback( dhandle, hh_cb.devices[dhandle].addr, HID_HDEV_EVT_CLOSE, reason, NULL ) ;
+                return;
+            }
+            else
+            {
+                /* Transition to the next appropriate state, waiting for connection confirm on interrupt channel. */
+                p_hcon->conn_state = HID_CONN_STATE_CONNECTING_INTR;
+            }
+        }
+    }
+    else
+        p_hcon->conn_flags |= HID_CONN_FLAGS_MY_INTR_CFG_DONE;
+
+    /* If all configuration is complete, change state and tell management we are up */
+    if (((p_hcon->conn_flags & HID_CONN_FLAGS_ALL_CONFIGURED) == HID_CONN_FLAGS_ALL_CONFIGURED)
+     && (p_hcon->conn_state == HID_CONN_STATE_CONFIG))
+    {
+        p_hcon->conn_state = HID_CONN_STATE_CONNECTED;
+        /* Reset disconnect reason to success, as connection successful */
+        p_hcon->disc_reason = HID_SUCCESS;
+
+        hh_cb.devices[dhandle].state = HID_DEV_CONNECTED;
+        hh_cb.callback( dhandle, hh_cb.devices[dhandle].addr, HID_HDEV_EVT_OPEN, 0, NULL ) ;
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         hidh_l2cif_disconnect_ind
+**
+** Description      This function handles a disconnect event from L2CAP. If
+**                  requested to, we ack the disconnect before dropping the CCB
+**
+** Returns          void
+**
+*******************************************************************************/
+static void hidh_l2cif_disconnect_ind (UINT16 l2cap_cid, BOOLEAN ack_needed)
+{
+    UINT8 dhandle;
+    tHID_CONN    *p_hcon = NULL;
+    UINT16 disc_res = HCI_SUCCESS;
+    UINT16 hid_close_evt_reason;
+
+    /* Find CCB based on CID */
+    if( (dhandle = find_conn_by_cid(l2cap_cid)) < HID_HOST_MAX_DEVICES )
+        p_hcon = &hh_cb.devices[dhandle].conn;
+
+    if (p_hcon == NULL)
+    {
+        HIDH_TRACE_WARNING ("HID-Host Rcvd L2CAP disc, unknown CID: 0x%x", l2cap_cid);
+        return;
+    }
+
+    if (ack_needed)
+        L2CA_DisconnectRsp (l2cap_cid);
+
+    HIDH_TRACE_EVENT ("HID-Host Rcvd L2CAP disc, CID: 0x%x", l2cap_cid);
+
+    p_hcon->conn_state = HID_CONN_STATE_DISCONNECTING;
+
+    if (l2cap_cid == p_hcon->ctrl_cid)
+        p_hcon->ctrl_cid = 0;
+    else
+        p_hcon->intr_cid = 0;
+
+    if ((p_hcon->ctrl_cid == 0) && (p_hcon->intr_cid == 0))
+    {
+        hh_cb.devices[dhandle].state = HID_DEV_NO_CONN;
+        p_hcon->conn_state = HID_CONN_STATE_UNUSED;
+
+        if( !ack_needed )
+            disc_res = btm_get_acl_disc_reason_code();
+
+#if (HID_HOST_MAX_CONN_RETRY > 0)
+        if( (disc_res == HCI_ERR_CONNECTION_TOUT || disc_res == HCI_ERR_UNSPECIFIED) &&
+            (!(hh_cb.devices[dhandle].attr_mask & HID_RECONN_INIT)) &&
+            (hh_cb.devices[dhandle].attr_mask & HID_NORMALLY_CONNECTABLE))
+        {
+            hh_cb.devices[dhandle].conn_tries = 0;
+            period_ms_t interval_ms = HID_HOST_REPAGE_WIN * 1000;
+            alarm_set_on_queue(hh_cb.devices[dhandle].conn.process_repage_timer,
+                               interval_ms, hidh_process_repage_timer_timeout,
+                               UINT_TO_PTR(dhandle), btu_general_alarm_queue);
+            hh_cb.callback( dhandle,  hh_cb.devices[dhandle].addr, HID_HDEV_EVT_CLOSE, disc_res, NULL);
+        }
+        else
+#endif
+        {
+            /* Set reason code for HID_HDEV_EVT_CLOSE */
+            hid_close_evt_reason = p_hcon->disc_reason;
+
+            /* If we got baseband sent HCI_DISCONNECT_COMPLETE_EVT due to security failure, then set reason to HID_ERR_AUTH_FAILED */
+            if ((disc_res == HCI_ERR_AUTH_FAILURE)                        ||
+                (disc_res == HCI_ERR_KEY_MISSING)                         ||
+                (disc_res == HCI_ERR_HOST_REJECT_SECURITY)                ||
+                (disc_res == HCI_ERR_PAIRING_NOT_ALLOWED)                 ||
+                (disc_res == HCI_ERR_UNIT_KEY_USED)                       ||
+                (disc_res == HCI_ERR_PAIRING_WITH_UNIT_KEY_NOT_SUPPORTED) ||
+                (disc_res == HCI_ERR_ENCRY_MODE_NOT_ACCEPTABLE)           ||
+                (disc_res == HCI_ERR_REPEATED_ATTEMPTS))
+            {
+                hid_close_evt_reason = HID_ERR_AUTH_FAILED;
+            }
+
+            hh_cb.callback( dhandle,  hh_cb.devices[dhandle].addr, HID_HDEV_EVT_CLOSE, hid_close_evt_reason, NULL ) ;
+        }
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         hidh_l2cif_disconnect_cfm
+**
+** Description      This function handles a disconnect confirm event from L2CAP.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void hidh_l2cif_disconnect_cfm (UINT16 l2cap_cid, UINT16 result)
+{
+    UINT8 dhandle;
+    tHID_CONN    *p_hcon = NULL;
+    UNUSED(result);
+
+    /* Find CCB based on CID */
+    if( (dhandle = find_conn_by_cid(l2cap_cid)) < HID_HOST_MAX_DEVICES )
+        p_hcon = &hh_cb.devices[dhandle].conn;
+
+    if (p_hcon == NULL)
+    {
+        HIDH_TRACE_WARNING ("HID-Host Rcvd L2CAP disc cfm, unknown CID: 0x%x", l2cap_cid);
+        return;
+    }
+
+    HIDH_TRACE_EVENT ("HID-Host Rcvd L2CAP disc cfm, CID: 0x%x", l2cap_cid);
+
+    if (l2cap_cid == p_hcon->ctrl_cid)
+        p_hcon->ctrl_cid = 0;
+    else
+    {
+        p_hcon->intr_cid = 0;
+        if (p_hcon->ctrl_cid)
+        {
+            HIDH_TRACE_EVENT ("HID-Host Initiating L2CAP Ctrl disconnection");
+            L2CA_DisconnectReq (p_hcon->ctrl_cid);
+        }
+    }
+
+    if ((p_hcon->ctrl_cid == 0) && (p_hcon->intr_cid == 0))
+    {
+        hh_cb.devices[dhandle].state = HID_DEV_NO_CONN;
+        p_hcon->conn_state = HID_CONN_STATE_UNUSED;
+        hh_cb.callback( dhandle, hh_cb.devices[dhandle].addr, HID_HDEV_EVT_CLOSE, p_hcon->disc_reason, NULL ) ;
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         hidh_l2cif_cong_ind
+**
+** Description      This function handles a congestion status event from L2CAP.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void hidh_l2cif_cong_ind (UINT16 l2cap_cid, BOOLEAN congested)
+{
+    UINT8 dhandle;
+    tHID_CONN    *p_hcon = NULL;
+
+    /* Find CCB based on CID */
+    if( (dhandle = find_conn_by_cid(l2cap_cid)) < HID_HOST_MAX_DEVICES )
+        p_hcon = &hh_cb.devices[dhandle].conn;
+
+    if (p_hcon == NULL)
+    {
+        HIDH_TRACE_WARNING ("HID-Host Rcvd L2CAP congestion status, unknown CID: 0x%x", l2cap_cid);
+        return;
+    }
+
+    HIDH_TRACE_EVENT ("HID-Host Rcvd L2CAP congestion status, CID: 0x%x  Cong: %d", l2cap_cid, congested);
+
+    if (congested)
+        p_hcon->conn_flags |= HID_CONN_FLAGS_CONGESTED;
+    else
+    {
+        p_hcon->conn_flags &= ~HID_CONN_FLAGS_CONGESTED;
+
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         hidh_l2cif_data_ind
+**
+** Description      This function is called when data is received from L2CAP.
+**                  if we are the originator of the connection, we are the SDP
+**                  client, and the received message is queued up for the client.
+**
+**                  If we are the destination of the connection, we are the SDP
+**                  server, so the message is passed to the server processing
+**                  function.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void hidh_l2cif_data_ind (UINT16 l2cap_cid, BT_HDR *p_msg)
+{
+    UINT8           *p_data = (UINT8 *)(p_msg + 1) + p_msg->offset;
+    UINT8           ttype, param, rep_type, evt;
+    UINT8 dhandle;
+    tHID_CONN    *p_hcon = NULL;
+
+    HIDH_TRACE_DEBUG ("HID-Host hidh_l2cif_data_ind [l2cap_cid=0x%04x]", l2cap_cid);
+
+    /* Find CCB based on CID */
+     if ((dhandle = find_conn_by_cid(l2cap_cid)) < HID_HOST_MAX_DEVICES)
+        p_hcon = &hh_cb.devices[dhandle].conn;
+
+    if (p_hcon == NULL)
+    {
+        HIDH_TRACE_WARNING ("HID-Host Rcvd L2CAP data, unknown CID: 0x%x", l2cap_cid);
+        osi_free(p_msg);
+        return;
+    }
+
+
+    ttype    = HID_GET_TRANS_FROM_HDR(*p_data);
+    param    = HID_GET_PARAM_FROM_HDR(*p_data);
+    rep_type = param & HID_PAR_REP_TYPE_MASK;
+    p_data++;
+
+    /* Get rid of the data type */
+    p_msg->len--;
+    p_msg->offset++;
+
+    switch (ttype)
+    {
+    case HID_TRANS_HANDSHAKE:
+        hh_cb.callback(dhandle,  hh_cb.devices[dhandle].addr, HID_HDEV_EVT_HANDSHAKE, param, NULL);
+        osi_free(p_msg);
+        break;
+
+    case HID_TRANS_CONTROL:
+        switch (param)
+        {
+        case HID_PAR_CONTROL_VIRTUAL_CABLE_UNPLUG:
+            hidh_conn_disconnect( dhandle ) ;
+            /* Device is unplugging from us. Tell USB */
+            hh_cb.callback(dhandle,  hh_cb.devices[dhandle].addr, HID_HDEV_EVT_VC_UNPLUG, 0, NULL);
+            break;
+
+        default:
+            break;
+        }
+        osi_free(p_msg);
+        break;
+
+
+    case HID_TRANS_DATA:
+        evt = (hh_cb.devices[dhandle].conn.intr_cid == l2cap_cid) ?
+                    HID_HDEV_EVT_INTR_DATA : HID_HDEV_EVT_CTRL_DATA;
+        hh_cb.callback(dhandle, hh_cb.devices[dhandle].addr, evt, rep_type, p_msg);
+        break;
+
+    case HID_TRANS_DATAC:
+        evt = (hh_cb.devices[dhandle].conn.intr_cid == l2cap_cid) ?
+                    HID_HDEV_EVT_INTR_DATC : HID_HDEV_EVT_CTRL_DATC;
+        hh_cb.callback(dhandle,  hh_cb.devices[dhandle].addr, evt, rep_type, p_msg);
+        break;
+
+    default:
+        osi_free(p_msg);
+        break;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         hidh_conn_snd_data
+**
+** Description      This function is sends out data.
+**
+** Returns          tHID_STATUS
+**
+*******************************************************************************/
+tHID_STATUS hidh_conn_snd_data (UINT8 dhandle, UINT8 trans_type, UINT8 param,
+                                UINT16 data, UINT8 report_id, BT_HDR *buf)
+{
+    tHID_CONN   *p_hcon = &hh_cb.devices[dhandle].conn;
+    BT_HDR      *p_buf;
+    UINT8       *p_out;
+    UINT16      bytes_copied;
+    BOOLEAN     seg_req = FALSE;
+    UINT16      data_size;
+    UINT16      cid;
+    UINT16      buf_size;
+    UINT8       use_data = 0 ;
+    BOOLEAN     blank_datc = FALSE;
+
+    if (!BTM_IsAclConnectionUp(hh_cb.devices[dhandle].addr, BT_TRANSPORT_BR_EDR))
+    {
+        osi_free(buf);
+        return HID_ERR_NO_CONNECTION;
+    }
+
+    if (p_hcon->conn_flags & HID_CONN_FLAGS_CONGESTED)
+    {
+        osi_free(buf);
+        return HID_ERR_CONGESTED;
+    }
+
+    switch( trans_type )
+    {
+    case HID_TRANS_CONTROL:
+    case HID_TRANS_GET_REPORT:
+    case HID_TRANS_SET_REPORT:
+    case HID_TRANS_GET_PROTOCOL:
+    case HID_TRANS_SET_PROTOCOL:
+    case HID_TRANS_GET_IDLE:
+    case HID_TRANS_SET_IDLE:
+        cid = p_hcon->ctrl_cid;
+        buf_size = HID_CONTROL_BUF_SIZE;
+        break;
+    case HID_TRANS_DATA:
+        cid = p_hcon->intr_cid;
+        buf_size = HID_INTERRUPT_BUF_SIZE;
+        break;
+    default:
+        return (HID_ERR_INVALID_PARAM) ;
+    }
+
+    if( trans_type == HID_TRANS_SET_IDLE )
+        use_data = 1;
+    else if( (trans_type == HID_TRANS_GET_REPORT) && (param & 0x08) )
+        use_data = 2;
+
+    do
+    {
+        if ( buf == NULL || blank_datc )
+        {
+            p_buf = (BT_HDR *)osi_malloc(buf_size);
+
+            p_buf->offset = L2CAP_MIN_OFFSET;
+            seg_req = FALSE;
+            data_size = 0;
+            bytes_copied = 0;
+            blank_datc = FALSE;
+        }
+        else if ( (buf->len > (p_hcon->rem_mtu_size - 1)))
+        {
+            p_buf = (BT_HDR *)osi_malloc(buf_size);
+
+            p_buf->offset = L2CAP_MIN_OFFSET;
+            seg_req = TRUE;
+            data_size = buf->len;
+            bytes_copied = p_hcon->rem_mtu_size - 1;
+        }
+        else
+        {
+            p_buf = buf ;
+            p_buf->offset -= 1;
+            seg_req = FALSE;
+            data_size = buf->len;
+            bytes_copied = buf->len;
+        }
+
+        p_out         = (UINT8 *)(p_buf + 1) + p_buf->offset;
+        *p_out++      = HID_BUILD_HDR(trans_type, param);
+
+        /* If report ID required for this device */
+        if( (trans_type == HID_TRANS_GET_REPORT) && (report_id != 0) )
+        {
+            *p_out = report_id;
+            data_size = bytes_copied = 1;
+        }
+
+
+        if (seg_req)
+        {
+            memcpy (p_out, (((UINT8 *)(buf+1)) + buf->offset), bytes_copied);
+            buf->offset += bytes_copied;
+            buf->len -= bytes_copied;
+        }
+        else if( use_data == 1)
+        {
+            *(p_out+bytes_copied) = data & 0xff;
+        }
+        else if( use_data == 2 )
+        {
+            *(p_out+bytes_copied) = data & 0xff;
+            *(p_out+bytes_copied+1) = (data >> 8) & 0xff ;
+        }
+
+        p_buf->len   = bytes_copied + 1 + use_data;
+        data_size    -= bytes_copied;
+
+        /* Send the buffer through L2CAP */
+        if ((p_hcon->conn_flags & HID_CONN_FLAGS_CONGESTED) || (!L2CA_DataWrite (cid, p_buf)))
+            return (HID_ERR_CONGESTED);
+
+        if (data_size)
+            trans_type = HID_TRANS_DATAC;
+        else if( bytes_copied == (p_hcon->rem_mtu_size - 1) )
+        {
+            trans_type = HID_TRANS_DATAC;
+            blank_datc = TRUE;
+        }
+
+    } while ((data_size != 0) || blank_datc ) ;
+
+    return (HID_SUCCESS);
+}
+/*******************************************************************************
+**
+** Function         hidh_conn_initiate
+**
+** Description      This function is called by the management to create a connection.
+**
+** Returns          void
+**
+*******************************************************************************/
+tHID_STATUS hidh_conn_initiate (UINT8 dhandle)
+{
+    UINT8   service_id = BTM_SEC_SERVICE_HIDH_NOSEC_CTRL;
+    UINT32  mx_chan_id = HID_NOSEC_CHN;
+
+    tHID_HOST_DEV_CTB *p_dev = &hh_cb.devices[dhandle];
+
+    if( p_dev->conn.conn_state != HID_CONN_STATE_UNUSED )
+        return( HID_ERR_CONN_IN_PROCESS );
+
+    p_dev->conn.ctrl_cid = 0;
+    p_dev->conn.intr_cid = 0;
+    p_dev->conn.disc_reason = HID_L2CAP_CONN_FAIL;  /* Reset initial reason for CLOSE_EVT: Connection Attempt was made but failed */
+
+    /* We are the originator of this connection */
+    p_dev->conn.conn_flags = HID_CONN_FLAGS_IS_ORIG;
+
+    if(p_dev->attr_mask & HID_SEC_REQUIRED)
+    {
+        service_id = BTM_SEC_SERVICE_HIDH_SEC_CTRL;
+        mx_chan_id = HID_SEC_CHN;
+    }
+    BTM_SetOutService (p_dev->addr, service_id, mx_chan_id);
+
+    /* Check if L2CAP started the connection process */
+    if ((p_dev->conn.ctrl_cid = L2CA_ConnectReq (HID_PSM_CONTROL, p_dev->addr)) == 0)
+    {
+        HIDH_TRACE_WARNING ("HID-Host Originate failed");
+        hh_cb.callback( dhandle,  hh_cb.devices[dhandle].addr, HID_HDEV_EVT_CLOSE,
+                                HID_ERR_L2CAP_FAILED, NULL ) ;
+    }
+    else
+    {
+        /* Transition to the next appropriate state, waiting for connection confirm on control channel. */
+        p_dev->conn.conn_state = HID_CONN_STATE_CONNECTING_CTRL;
+    }
+
+    return( HID_SUCCESS );
+}
+
+
+/*******************************************************************************
+**
+** Function         find_conn_by_cid
+**
+** Description      This function finds a connection control block based on CID
+**
+** Returns          address of control block, or NULL if not found
+**
+*******************************************************************************/
+static UINT8 find_conn_by_cid (UINT16 cid)
+{
+    UINT8      xx;
+
+    for (xx = 0; xx < HID_HOST_MAX_DEVICES; xx++)
+    {
+        if ((hh_cb.devices[xx].in_use) && (hh_cb.devices[xx].conn.conn_state != HID_CONN_STATE_UNUSED)
+            && ((hh_cb.devices[xx].conn.ctrl_cid == cid) || (hh_cb.devices[xx].conn.intr_cid == cid)))
+            break;
+    }
+
+    return (xx);
+}
+
+void hidh_conn_dereg( void )
+{
+    L2CA_Deregister (HID_PSM_CONTROL);
+    L2CA_Deregister (HID_PSM_INTERRUPT);
+}
+
+/*******************************************************************************
+**
+** Function         hidh_conn_retry
+**
+** Description      This function is called to retry a failed connection.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void hidh_conn_retry(  UINT8 dhandle )
+{
+    tHID_HOST_DEV_CTB *p_dev = &hh_cb.devices[dhandle];
+
+    p_dev->conn.conn_state = HID_CONN_STATE_UNUSED;
+#if (HID_HOST_REPAGE_WIN > 0)
+    period_ms_t interval_ms = HID_HOST_REPAGE_WIN * 1000;
+    alarm_set_on_queue(p_dev->conn.process_repage_timer,
+                       interval_ms, hidh_process_repage_timer_timeout,
+                       UINT_TO_PTR(dhandle), btu_general_alarm_queue);
+#else
+    hidh_process_repage_process(dhandle);
+#endif
+}
diff --git a/rtkbt/code/bt/stack/hid/hidh_int.h b/rtkbt/code/bt/stack/hid/hidh_int.h
new file mode 100755
index 0000000..c89c330
--- /dev/null
+++ b/rtkbt/code/bt/stack/hid/hidh_int.h
@@ -0,0 +1,94 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2002-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains HID HOST internal definitions
+ *
+ ******************************************************************************/
+
+#ifndef HIDH_INT_H
+#define HIDH_INT_H
+
+#include "hidh_api.h"
+#include "hid_conn.h"
+#include "l2c_api.h"
+
+enum {
+    HID_DEV_NO_CONN,
+    HID_DEV_CONNECTED
+};
+
+typedef struct per_device_ctb
+{
+    BOOLEAN        in_use;
+    BD_ADDR        addr;  /* BD-Addr of the host device */
+    UINT16         attr_mask; /* 0x01- virtual_cable; 0x02- normally_connectable; 0x03- reconn_initiate;
+    			                 0x04- sdp_disable; */
+    UINT8          state;  /* Device state if in HOST-KNOWN mode */
+    UINT8          conn_substate;
+    UINT8          conn_tries; /* Remembers to the number of connection attempts while CONNECTING */
+
+    tHID_CONN      conn; /* L2CAP channel info */
+} tHID_HOST_DEV_CTB;
+
+typedef struct host_ctb
+{
+    tHID_HOST_DEV_CTB       devices[HID_HOST_MAX_DEVICES];
+    tHID_HOST_DEV_CALLBACK  *callback;             /* Application callbacks */
+    tL2CAP_CFG_INFO         l2cap_cfg;
+
+#define MAX_SERVICE_DB_SIZE    4000
+
+    BOOLEAN                 sdp_busy;
+    tHID_HOST_SDP_CALLBACK  *sdp_cback;
+    tSDP_DISCOVERY_DB       *p_sdp_db;
+    tHID_DEV_SDP_INFO       sdp_rec;
+    BOOLEAN                 reg_flag;
+    UINT8                   trace_level;
+} tHID_HOST_CTB;
+
+extern tHID_STATUS hidh_conn_snd_data(UINT8 dhandle, UINT8 trans_type, UINT8 param, \
+                                      UINT16 data,UINT8 rpt_id, BT_HDR *buf);
+extern tHID_STATUS hidh_conn_reg (void);
+extern void hidh_conn_dereg( void );
+extern tHID_STATUS hidh_conn_disconnect (UINT8 dhandle);
+extern tHID_STATUS hidh_conn_initiate (UINT8 dhandle);
+extern void hidh_process_repage_timer_timeout(void *data);
+extern void hidh_try_repage(UINT8 dhandle);
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+/******************************************************************************
+** Main Control Block
+*******************************************************************************/
+#if HID_DYNAMIC_MEMORY == FALSE
+extern tHID_HOST_CTB  hh_cb;
+#else
+extern tHID_HOST_CTB *hidh_cb_ptr;
+#define hh_cb (*hidh_cb_ptr)
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/rtkbt/code/bt/stack/include/a2d_api.h b/rtkbt/code/bt/stack/include/a2d_api.h
new file mode 100755
index 0000000..75d2755
--- /dev/null
+++ b/rtkbt/code/bt/stack/include/a2d_api.h
@@ -0,0 +1,256 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2000-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  nterface to A2DP Application Programming Interface
+ *
+ ******************************************************************************/
+#ifndef A2D_API_H
+#define A2D_API_H
+#include "sdp_api.h"
+
+/*****************************************************************************
+**  constants
+*****************************************************************************/
+
+/* Profile supported features */
+#define A2D_SUPF_PLAYER     0x0001
+#define A2D_SUPF_MIC        0x0002
+#define A2D_SUPF_TUNER      0x0004
+#define A2D_SUPF_MIXER      0x0008
+
+#define A2D_SUPF_HEADPHONE  0x0001
+#define A2D_SUPF_SPEAKER    0x0002
+#define A2D_SUPF_RECORDER   0x0004
+#define A2D_SUPF_AMP        0x0008
+
+/* AV Media Types */
+#define A2D_MEDIA_TYPE_AUDIO    0x00    /* audio media type + RFA */
+#define A2D_MEDIA_TYPE_VIDEO    0x10    /* video media type + RFA */
+#define A2D_MEDIA_TYPE_MULTI    0x20    /* multimedia media type + RFA */
+
+/* AV Media Codec Type (Audio Codec ID) */
+#define A2D_MEDIA_CT_SBC        0x00    /* SBC media codec type */
+#define A2D_MEDIA_CT_M12        0x01    /* MPEG-1, 2 Audio media codec type */
+#define A2D_MEDIA_CT_M24        0x02    /* MPEG-2, 4 AAC media codec type */
+#define A2D_MEDIA_CT_ATRAC      0x04    /* ATRAC family media codec type */
+
+#define A2D_SUCCESS           0     /* Success */
+#define A2D_FAIL              0x0A  /* Failed */
+#define A2D_BUSY              0x0B  /* A2D_FindService is already in progress */
+#define A2D_INVALID_PARAMS    0x0C  /* bad parameters */
+#define A2D_WRONG_CODEC       0x0D  /* wrong codec info */
+#define A2D_BAD_CODEC_TYPE    0xC1  /* Media Codec Type is not valid  */
+#define A2D_NS_CODEC_TYPE     0xC2  /* Media Codec Type is not supported */
+#define A2D_BAD_SAMP_FREQ     0xC3  /* Sampling Frequency is not valid or multiple values have been selected  */
+#define A2D_NS_SAMP_FREQ      0xC4  /* Sampling Frequency is not supported  */
+#define A2D_BAD_CH_MODE       0xC5  /* Channel Mode is not valid or multiple values have been selected  */
+#define A2D_NS_CH_MODE        0xC6  /* Channel Mode is not supported */
+#define A2D_BAD_SUBBANDS      0xC7  /* None or multiple values have been selected for Number of Subbands */
+#define A2D_NS_SUBBANDS       0xC8  /* Number of Subbands is not supported */
+#define A2D_BAD_ALLOC_MTHD    0xC9  /* None or multiple values have been selected for Allocation Method */
+#define A2D_NS_ALLOC_MTHD     0xCA  /* Allocation Method is not supported */
+#define A2D_BAD_MIN_BITPOOL   0xCB  /* Minimum Bitpool Value is not valid */
+#define A2D_NS_MIN_BITPOOL    0xCC  /* Minimum Bitpool Value is not supported */
+#define A2D_BAD_MAX_BITPOOL   0xCD  /* Maximum Bitpool Value is not valid */
+#define A2D_NS_MAX_BITPOOL    0xCE  /* Maximum Bitpool Value is not supported */
+#define A2D_BAD_LAYER         0xCF  /* None or multiple values have been selected for Layer */
+#define A2D_NS_LAYER          0xD0  /* Layer is not supported */
+#define A2D_NS_CRC            0xD1  /* CRC is not supported */
+#define A2D_NS_MPF            0xD2  /* MPF-2 is not supported */
+#define A2D_NS_VBR            0xD3  /* VBR is not supported */
+#define A2D_BAD_BIT_RATE      0xD4  /* None or multiple values have been selected for Bit Rate */
+#define A2D_NS_BIT_RATE       0xD5  /* Bit Rate is not supported */
+#define A2D_BAD_OBJ_TYPE      0xD6  /* Either 1) Object type is not valid (b3-b0) or 2) None or multiple values have been selected for Object Type */
+#define A2D_NS_OBJ_TYPE       0xD7  /* Object type is not supported */
+#define A2D_BAD_CHANNEL       0xD8  /* None or multiple values have been selected for Channels */
+#define A2D_NS_CHANNEL        0xD9  /* Channels is not supported */
+#define A2D_BAD_BLOCK_LEN     0xDD  /* None or multiple values have been selected for Block Length */
+#define A2D_BAD_CP_TYPE       0xE0  /* The requested CP Type is not supported. */
+#define A2D_BAD_CP_FORMAT     0xE1  /* The format of Content Protection Service Capability/Content Protection Scheme Dependent Data is not correct. */
+
+typedef UINT8 tA2D_STATUS;
+
+/* the return values from A2D_BitsSet() */
+#define A2D_SET_ONE_BIT         1   /* one and only one bit is set */
+#define A2D_SET_ZERO_BIT        0   /* all bits clear */
+#define A2D_SET_MULTL_BIT       2   /* multiple bits are set */
+
+/*****************************************************************************
+**  type definitions
+*****************************************************************************/
+
+/* This data type is used in A2D_FindService() to initialize the SDP database
+ * to hold the result service search. */
+typedef struct
+{
+    UINT32              db_len;  /* Length, in bytes, of the discovery database */
+    UINT16              num_attr;/* The number of attributes in p_attrs */
+    UINT16             *p_attrs; /* The attributes filter. If NULL, A2DP API sets the attribute filter
+                                  * to be ATTR_ID_SERVICE_CLASS_ID_LIST, ATTR_ID_BT_PROFILE_DESC_LIST,
+                                  * ATTR_ID_SUPPORTED_FEATURES, ATTR_ID_SERVICE_NAME and ATTR_ID_PROVIDER_NAME.
+                                  * If not NULL, the input is taken as the filter. */
+} tA2D_SDP_DB_PARAMS;
+
+/* This data type is used in tA2D_FIND_CBACK to report the result of the SDP discovery process. */
+typedef struct
+{
+    UINT16  service_len;    /* Length, in bytes, of the service name */
+    UINT16  provider_len;   /* Length, in bytes, of the provider name */
+    char *  p_service_name; /* Pointer the service name.  This character string may not be null terminated.
+                             * Use the service_len parameter to safely copy this string */
+    char *  p_provider_name;/* Pointer the provider name.  This character string may not be null terminated.
+                             * Use the provider_len parameter to safely copy this string */
+    UINT16  features;       /* Profile supported features */
+    UINT16  avdt_version;   /* AVDTP protocol version */
+} tA2D_Service;
+
+/* This is the callback to notify the result of the SDP discovery process. */
+typedef void (tA2D_FIND_CBACK)(BOOLEAN found, tA2D_Service * p_service);
+
+
+/*****************************************************************************
+**  external function declarations
+*****************************************************************************/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+/******************************************************************************
+**
+** Function         A2D_AddRecord
+**
+** Description      This function is called by a server application to add
+**                  SRC or SNK information to an SDP record.  Prior to
+**                  calling this function the application must call
+**                  SDP_CreateRecord() to create an SDP record.
+**
+**                  Input Parameters:
+**                      service_uuid:  Indicates SRC or SNK.
+**
+**                      p_service_name:  Pointer to a null-terminated character
+**                      string containing the service name.
+**
+**                      p_provider_name:  Pointer to a null-terminated character
+**                      string containing the provider name.
+**
+**                      features:  Profile supported features.
+**
+**                      sdp_handle:  SDP handle returned by SDP_CreateRecord().
+**
+**                  Output Parameters:
+**                      None.
+**
+** Returns          A2D_SUCCESS if function execution succeeded,
+**                  A2D_INVALID_PARAMS if bad parameters are given.
+**                  A2D_FAIL if function execution failed.
+**
+******************************************************************************/
+extern tA2D_STATUS A2D_AddRecord(UINT16 service_uuid, char *p_service_name, char *p_provider_name,
+        UINT16 features, UINT32 sdp_handle);
+
+/******************************************************************************
+**
+** Function         A2D_FindService
+**
+** Description      This function is called by a client application to
+**                  perform service discovery and retrieve SRC or SNK SDP
+**                  record information from a server.  Information is
+**                  returned for the first service record found on the
+**                  server that matches the service UUID.  The callback
+**                  function will be executed when service discovery is
+**                  complete.  There can only be one outstanding call to
+**                  A2D_FindService() at a time; the application must wait
+**                  for the callback before it makes another call to
+**                  the function.
+**
+**                  Input Parameters:
+**                      service_uuid:  Indicates SRC or SNK.
+**
+**                      bd_addr:  BD address of the peer device.
+**
+**                      p_db:  Pointer to the information to initialize
+**                             the discovery database.
+**
+**                      p_cback:  Pointer to the A2D_FindService()
+**                      callback function.
+**
+**                  Output Parameters:
+**                      None.
+**
+** Returns          A2D_SUCCESS if function execution succeeded,
+**                  A2D_INVALID_PARAMS if bad parameters are given.
+**                  A2D_BUSY if discovery is already in progress.
+**                  A2D_FAIL if function execution failed.
+**
+******************************************************************************/
+extern tA2D_STATUS A2D_FindService(UINT16 service_uuid, BD_ADDR bd_addr,
+                                   tA2D_SDP_DB_PARAMS *p_db, tA2D_FIND_CBACK *p_cback);
+
+/******************************************************************************
+**
+** Function         A2D_SetTraceLevel
+**
+** Description      Sets the trace level for A2D. If 0xff is passed, the
+**                  current trace level is returned.
+**
+**                  Input Parameters:
+**                      new_level:  The level to set the A2D tracing to:
+**                      0xff-returns the current setting.
+**                      0-turns off tracing.
+**                      >= 1-Errors.
+**                      >= 2-Warnings.
+**                      >= 3-APIs.
+**                      >= 4-Events.
+**                      >= 5-Debug.
+**
+** Returns          The new trace level or current trace level if
+**                  the input parameter is 0xff.
+**
+******************************************************************************/
+extern UINT8 A2D_SetTraceLevel (UINT8 new_level);
+
+/******************************************************************************
+** Function         A2D_BitsSet
+**
+** Description      Check the given num for the number of bits set
+** Returns          A2D_SET_ONE_BIT, if one and only one bit is set
+**                  A2D_SET_ZERO_BIT, if all bits clear
+**                  A2D_SET_MULTL_BIT, if multiple bits are set
+******************************************************************************/
+extern UINT8 A2D_BitsSet(UINT8 num);
+
+#ifdef __cplusplus
+}
+#endif
+
+/*******************************************************************************
+**
+** Function         A2D_Init
+**
+** Description      This function is called at stack startup to allocate the
+**                  control block (if using dynamic memory), and initializes the
+**                  control block and tracing level.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void A2D_Init(void);
+
+#endif /* A2D_API_H */
diff --git a/rtkbt/code/bt/stack/include/a2d_sbc.h b/rtkbt/code/bt/stack/include/a2d_sbc.h
new file mode 100755
index 0000000..0d26cbf
--- /dev/null
+++ b/rtkbt/code/bt/stack/include/a2d_sbc.h
@@ -0,0 +1,212 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2000-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  nterface to low complexity subband codec (SBC)
+ *
+ ******************************************************************************/
+#ifndef A2D_SBC_H
+#define A2D_SBC_H
+
+/*****************************************************************************
+**  Constants
+*****************************************************************************/
+/* the length of the SBC Media Payload header. */
+#define A2D_SBC_MPL_HDR_LEN         1
+
+/* the LOSC of SBC media codec capabilitiy */
+#define A2D_SBC_INFO_LEN            6
+
+/* for Codec Specific Information Element */
+#define A2D_SBC_IE_SAMP_FREQ_MSK    0xF0    /* b7-b4 sampling frequency */
+#define A2D_SBC_IE_SAMP_FREQ_16     0x80    /* b7:16  kHz */
+#define A2D_SBC_IE_SAMP_FREQ_32     0x40    /* b6:32  kHz */
+#define A2D_SBC_IE_SAMP_FREQ_44     0x20    /* b5:44.1kHz */
+#define A2D_SBC_IE_SAMP_FREQ_48     0x10    /* b4:48  kHz */
+
+#define A2D_SBC_IE_CH_MD_MSK        0x0F    /* b3-b0 channel mode */
+#define A2D_SBC_IE_CH_MD_MONO       0x08    /* b3: mono */
+#define A2D_SBC_IE_CH_MD_DUAL       0x04    /* b2: dual */
+#define A2D_SBC_IE_CH_MD_STEREO     0x02    /* b1: stereo */
+#define A2D_SBC_IE_CH_MD_JOINT      0x01    /* b0: joint stereo */
+
+#define A2D_SBC_IE_BLOCKS_MSK       0xF0    /* b7-b4 number of blocks */
+#define A2D_SBC_IE_BLOCKS_4         0x80    /* 4 blocks */
+#define A2D_SBC_IE_BLOCKS_8         0x40    /* 8 blocks */
+#define A2D_SBC_IE_BLOCKS_12        0x20    /* 12blocks */
+#define A2D_SBC_IE_BLOCKS_16        0x10    /* 16blocks */
+
+#define A2D_SBC_IE_SUBBAND_MSK      0x0C    /* b3-b2 number of subbands */
+#define A2D_SBC_IE_SUBBAND_4        0x08    /* b3: 4 */
+#define A2D_SBC_IE_SUBBAND_8        0x04    /* b2: 8 */
+
+#define A2D_SBC_IE_ALLOC_MD_MSK     0x03    /* b1-b0 allocation mode */
+#define A2D_SBC_IE_ALLOC_MD_S       0x02    /* b1: SNR */
+#define A2D_SBC_IE_ALLOC_MD_L       0x01    /* b0: loundess */
+
+#define A2D_SBC_IE_MIN_BITPOOL      2
+#define A2D_SBC_IE_MAX_BITPOOL      250
+
+/* for media payload header */
+#define A2D_SBC_HDR_F_MSK           0x80
+#define A2D_SBC_HDR_S_MSK           0x40
+#define A2D_SBC_HDR_L_MSK           0x20
+#define A2D_SBC_HDR_NUM_MSK         0x0F
+
+/*****************************************************************************
+**  Type Definitions
+*****************************************************************************/
+
+/* data type for the SBC Codec Information Element*/
+typedef struct
+{
+    UINT8   samp_freq;      /* Sampling frequency */
+    UINT8   ch_mode;        /* Channel mode */
+    UINT8   block_len;      /* Block length */
+    UINT8   num_subbands;   /* Number of subbands */
+    UINT8   alloc_mthd;     /* Allocation method */
+    UINT8   max_bitpool;    /* Maximum bitpool */
+    UINT8   min_bitpool;    /* Minimum bitpool */
+} tA2D_SBC_CIE;
+
+
+/*****************************************************************************
+**  External Function Declarations
+*****************************************************************************/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+/******************************************************************************
+**
+** Function         A2D_SbcChkFrInit
+**
+** Description      check if need to init the descramble control block.
+**
+** Returns          nothing.
+******************************************************************************/
+extern void A2D_SbcChkFrInit(UINT8 *p_pkt);
+
+/******************************************************************************
+**
+** Function         A2D_SbcDescramble
+**
+** Description      descramble the packet.
+**
+** Returns          nothing.
+******************************************************************************/
+extern void A2D_SbcDescramble(UINT8 *p_pkt, UINT16 len);
+
+/******************************************************************************
+**
+** Function         A2D_BldSbcInfo
+**
+** Description      This function is called by an application to build
+**                  the SBC Media Codec Capabilities byte sequence
+**                  beginning from the LOSC octet.
+**                  Input Parameters:
+**                      media_type:  Indicates Audio, or Multimedia.
+**
+**                      p_ie:  The SBC Codec Information Element information.
+**
+**                  Output Parameters:
+**                      p_result:  the resulting codec info byte sequence.
+**
+** Returns          A2D_SUCCESS if function execution succeeded.
+**                  Error status code, otherwise.
+******************************************************************************/
+extern tA2D_STATUS A2D_BldSbcInfo(UINT8 media_type, tA2D_SBC_CIE *p_ie,
+                                  UINT8 *p_result);
+
+/******************************************************************************
+**
+** Function         A2D_ParsSbcInfo
+**
+** Description      This function is called by an application to parse
+**                  the SBC Media Codec Capabilities byte sequence
+**                  beginning from the LOSC octet.
+**                  Input Parameters:
+**                      p_info:  the byte sequence to parse.
+**
+**                      for_caps:  TRUE, if the byte sequence is for get capabilities response.
+**
+**                  Output Parameters:
+**                      p_ie:  The SBC Codec Information Element information.
+**
+** Returns          A2D_SUCCESS if function execution succeeded.
+**                  Error status code, otherwise.
+******************************************************************************/
+extern tA2D_STATUS A2D_ParsSbcInfo(tA2D_SBC_CIE *p_ie, const UINT8 *p_info,
+                                   BOOLEAN for_caps);
+
+/******************************************************************************
+**
+** Function         A2D_BldSbcMplHdr
+**
+** Description      This function is called by an application to parse
+**                  the SBC Media Payload header.
+**                  Input Parameters:
+**                      frag:  1, if fragmented. 0, otherwise.
+**
+**                      start:  1, if the starting packet of a fragmented frame.
+**
+**                      last:  1, if the last packet of a fragmented frame.
+**
+**                      num:  If frag is 1, this is the number of remaining fragments
+**                            (including this fragment) of this frame.
+**                            If frag is 0, this is the number of frames in this packet.
+**
+**                  Output Parameters:
+**                      p_dst:  the resulting media payload header byte sequence.
+**
+** Returns          void.
+******************************************************************************/
+extern void A2D_BldSbcMplHdr(UINT8 *p_dst, BOOLEAN frag, BOOLEAN start,
+                             BOOLEAN last, UINT8 num);
+
+/******************************************************************************
+**
+** Function         A2D_ParsSbcMplHdr
+**
+** Description      This function is called by an application to parse
+**                  the SBC Media Payload header.
+**                  Input Parameters:
+**                      p_src:  the byte sequence to parse..
+**
+**                  Output Parameters:
+**                      frag:  1, if fragmented. 0, otherwise.
+**
+**                      start:  1, if the starting packet of a fragmented frame.
+**
+**                      last:  1, if the last packet of a fragmented frame.
+**
+**                      num:  If frag is 1, this is the number of remaining fragments
+**                            (including this fragment) of this frame.
+**                            If frag is 0, this is the number of frames in this packet.
+**
+** Returns          void.
+******************************************************************************/
+extern void A2D_ParsSbcMplHdr(UINT8 *p_src, BOOLEAN *p_frag,
+                              BOOLEAN *p_start, BOOLEAN *p_last,
+                              UINT8 *p_num);
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* A2D_SBC_H */
diff --git a/rtkbt/code/bt/stack/include/avct_api.h b/rtkbt/code/bt/stack/include/avct_api.h
new file mode 100755
index 0000000..c2713fd
--- /dev/null
+++ b/rtkbt/code/bt/stack/include/avct_api.h
@@ -0,0 +1,279 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This interface file contains the interface to the Audio Video Control
+ *  Transport Protocol (AVCTP).
+ *
+ ******************************************************************************/
+#ifndef AVCT_API_H
+#define AVCT_API_H
+
+#include "bt_types.h"
+#include "bt_target.h"
+
+/*****************************************************************************
+**  Constants
+*****************************************************************************/
+
+/* API function return value result codes. */
+#define AVCT_SUCCESS                0       /* Function successful */
+#define AVCT_NO_RESOURCES           1       /* Not enough resources */
+#define AVCT_BAD_HANDLE             2       /* Bad handle */
+#define AVCT_PID_IN_USE             3       /* PID already in use */
+#define AVCT_NOT_OPEN               4       /* Connection not open */
+
+/* PSM for AVCT. */
+#define AVCT_PSM                    0x0017
+#define AVCT_BR_PSM                 0x001B
+
+/* Protocol revision numbers */
+#define AVCT_REV_1_0                0x0100
+#define AVCT_REV_1_2                0x0102
+#define AVCT_REV_1_3                0x0103
+#define AVCT_REV_1_4                0x0104
+
+/* the layer_specific settings */
+#define AVCT_DATA_CTRL              0x0001    /* for the control channel */
+#define AVCT_DATA_BROWSE            0x0002    /* for the browsing channel */
+#define AVCT_DATA_PARTIAL           0x0100    /* Only have room for a partial message */
+
+#define AVCT_MIN_CONTROL_MTU        48  /* Per the AVRC spec, minimum MTU for the control channel */
+#define AVCT_MIN_BROWSE_MTU         335 /* Per the AVRC spec, minimum MTU for the browsing channel */
+
+/* Message offset.  The number of bytes needed by the protocol stack for the
+** protocol headers of an AVCTP message packet.
+*/
+#define AVCT_MSG_OFFSET             15
+#define AVCT_BROWSE_OFFSET          17 /* the default offset for browsing channel */
+
+/* Connection role. */
+#define AVCT_INT                    0       /* Initiator connection */
+#define AVCT_ACP                    1       /* Acceptor connection */
+
+/* Control role. */
+#define AVCT_TARGET                 1       /* target  */
+#define AVCT_CONTROL                2       /* controller  */
+#define AVCT_PASSIVE                4       /* If conflict, allow the other side to succeed  */
+
+/* Command/Response indicator. */
+#define AVCT_CMD                    0       /* Command message */
+#define AVCT_RSP                    2       /* Response message */
+#define AVCT_REJ                    3       /* Message rejected */
+
+/* Control callback events. */
+#define AVCT_CONNECT_CFM_EVT        0       /* Connection confirm */
+#define AVCT_CONNECT_IND_EVT        1       /* Connection indication */
+#define AVCT_DISCONNECT_CFM_EVT     2       /* Disconnect confirm */
+#define AVCT_DISCONNECT_IND_EVT     3       /* Disconnect indication */
+#define AVCT_CONG_IND_EVT           4       /* Congestion indication */
+#define AVCT_UNCONG_IND_EVT         5       /* Uncongestion indication */
+#define AVCT_BROWSE_CONN_CFM_EVT    6       /* Browse Connection confirm */
+#define AVCT_BROWSE_CONN_IND_EVT    7       /* Browse Connection indication */
+#define AVCT_BROWSE_DISCONN_CFM_EVT 8       /* Browse Disconnect confirm */
+#define AVCT_BROWSE_DISCONN_IND_EVT 9       /* Browse Disconnect indication */
+#define AVCT_BROWSE_CONG_IND_EVT    10      /* Congestion indication */
+#define AVCT_BROWSE_UNCONG_IND_EVT  11      /* Uncongestion indication */
+
+
+/* General purpose failure result code for callback events. */
+#define AVCT_RESULT_FAIL            5
+
+/*****************************************************************************
+**  Type Definitions
+*****************************************************************************/
+
+/* Control callback function. */
+typedef void (tAVCT_CTRL_CBACK)(UINT8 handle, UINT8 event, UINT16 result,
+                                BD_ADDR peer_addr);
+
+/* Message callback function */
+/* p_pkt->layer_specific is AVCT_DATA_CTRL or AVCT_DATA_BROWSE */
+typedef void (tAVCT_MSG_CBACK)(UINT8 handle, UINT8 label, UINT8 cr,
+                               BT_HDR *p_pkt);
+
+/* Structure used by AVCT_CreateConn. */
+typedef struct {
+    tAVCT_CTRL_CBACK    *p_ctrl_cback;      /* Control callback */
+    tAVCT_MSG_CBACK     *p_msg_cback;       /* Message callback */
+    UINT16              pid;                /* Profile ID */
+    UINT8               role;               /* Initiator/acceptor role */
+    UINT8               control;        /* Control role (Control/Target) */
+} tAVCT_CC;
+
+/*****************************************************************************
+**  External Function Declarations
+*****************************************************************************/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+/*******************************************************************************
+**
+** Function         AVCT_Register
+**
+** Description      This is the system level registration function for the
+**                  AVCTP protocol.  This function initializes AVCTP and
+**                  prepares the protocol stack for its use.  This function
+**                  must be called once by the system or platform using AVCTP
+**                  before the other functions of the API an be used.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void AVCT_Register(UINT16 mtu, UINT16 mtu_br, UINT8 sec_mask);
+
+/*******************************************************************************
+**
+** Function         AVCT_Deregister
+**
+** Description      This function is called to deregister use AVCTP protocol.
+**                  It is called when AVCTP is no longer being used by any
+**                  application in the system.  Before this function can be
+**                  called, all connections must be removed with
+**                  AVCT_RemoveConn().
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void AVCT_Deregister(void);
+
+/*******************************************************************************
+**
+** Function         AVCT_CreateConn
+**
+** Description      Create an AVCTP connection.  There are two types of
+**                  connections, initiator and acceptor, as determined by
+**                  the p_cc->role parameter.  When this function is called to
+**                  create an initiator connection, an AVCTP connection to
+**                  the peer device is initiated if one does not already exist.
+**                  If an acceptor connection is created, the connection waits
+**                  passively for an incoming AVCTP connection from a peer device.
+**
+**
+** Returns          AVCT_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+extern UINT16 AVCT_CreateConn(UINT8 *p_handle, tAVCT_CC *p_cc,
+                              BD_ADDR peer_addr);
+
+/*******************************************************************************
+**
+** Function         AVCT_RemoveConn
+**
+** Description      Remove an AVCTP connection.  This function is called when
+**                  the application is no longer using a connection.  If this
+**                  is the last connection to a peer the L2CAP channel for AVCTP
+**                  will be closed.
+**
+**
+** Returns          AVCT_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+extern UINT16 AVCT_RemoveConn(UINT8 handle);
+
+/*******************************************************************************
+**
+** Function         AVCT_CreateBrowse
+**
+** Description      Create an AVCTP connection.  There are two types of
+**                  connections, initiator and acceptor, as determined by
+**                  the p_cc->role parameter.  When this function is called to
+**                  create an initiator connection, an AVCTP connection to
+**                  the peer device is initiated if one does not already exist.
+**                  If an acceptor connection is created, the connection waits
+**                  passively for an incoming AVCTP connection from a peer device.
+**
+**
+** Returns          AVCT_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+extern UINT16 AVCT_CreateBrowse(UINT8 handle, UINT8 role);
+
+/*******************************************************************************
+**
+** Function         AVCT_RemoveBrowse
+**
+** Description      Remove an AVCTP connection.  This function is called when
+**                  the application is no longer using a connection.  If this
+**                  is the last connection to a peer the L2CAP channel for AVCTP
+**                  will be closed.
+**
+**
+** Returns          AVCT_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+extern UINT16 AVCT_RemoveBrowse(UINT8 handle);
+
+/*******************************************************************************
+**
+** Function         AVCT_GetBrowseMtu
+**
+** Description      Get the peer_mtu for the AVCTP Browse channel of the given
+**                  connection.
+**
+** Returns          the peer browsing channel MTU.
+**
+*******************************************************************************/
+extern UINT16 AVCT_GetBrowseMtu (UINT8 handle);
+
+/*******************************************************************************
+**
+** Function         AVCT_GetPeerMtu
+**
+** Description      Get the peer_mtu for the AVCTP channel of the given
+**                  connection.
+**
+** Returns          the peer MTU size.
+**
+*******************************************************************************/
+extern UINT16 AVCT_GetPeerMtu (UINT8 handle);
+
+/*******************************************************************************
+**
+** Function         AVCT_MsgReq
+**
+** Description      Send an AVCTP message to a peer device.  In calling
+**                  AVCT_MsgReq(), the application should keep track of the
+**                  congestion state of AVCTP as communicated with events
+**                  AVCT_CONG_IND_EVT and AVCT_UNCONG_IND_EVT.   If the
+**                  application calls AVCT_MsgReq() when AVCTP is congested
+**                  the message may be discarded.  The application may make its
+**                  first call to AVCT_MsgReq() after it receives an
+**                  AVCT_CONNECT_CFM_EVT or AVCT_CONNECT_IND_EVT on control channel or
+**                  AVCT_BROWSE_CONN_CFM_EVT or AVCT_BROWSE_CONN_IND_EVT on browsing channel.
+**
+**                  p_msg->layer_specific must be set to
+**                  AVCT_DATA_CTRL for control channel traffic;
+**                  AVCT_DATA_BROWSE for for browse channel traffic.
+**
+** Returns          AVCT_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+extern UINT16 AVCT_MsgReq(UINT8 handle, UINT8 label, UINT8 cr, BT_HDR *p_msg);
+
+#ifdef __cplusplus
+}
+#endif
+
+
+#endif /* AVCT_API_H */
diff --git a/rtkbt/code/bt/stack/include/avdt_api.h b/rtkbt/code/bt/stack/include/avdt_api.h
new file mode 100755
index 0000000..e10faf0
--- /dev/null
+++ b/rtkbt/code/bt/stack/include/avdt_api.h
@@ -0,0 +1,959 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2002-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This interface file contains the interface to the Audio Video
+ *  Distribution Transport Protocol (AVDTP).
+ *
+ ******************************************************************************/
+#ifndef AVDT_API_H
+#define AVDT_API_H
+
+#include "bt_types.h"
+#include "bt_target.h"
+
+/*****************************************************************************
+**  Constants
+*****************************************************************************/
+#ifndef AVDT_VERSION
+#define AVDT_VERSION                0x0102
+#endif
+#define AVDT_VERSION_SYNC           0x0103
+
+/* API function return value result codes. */
+#define AVDT_SUCCESS                0       /* Function successful */
+#define AVDT_BAD_PARAMS             1       /* Invalid parameters */
+#define AVDT_NO_RESOURCES           2       /* Not enough resources */
+#define AVDT_BAD_HANDLE             3       /* Bad handle */
+#define AVDT_BUSY                   4       /* A procedure is already in progress */
+#define AVDT_WRITE_FAIL             5       /* Write failed */
+
+/* The index to access the codec type in codec_info[]. */
+#define AVDT_CODEC_TYPE_INDEX       2
+
+/* The size in bytes of a Adaptation Layer header. */
+#define AVDT_AL_HDR_SIZE         3
+
+/* The size in bytes of a media packet header. */
+#define AVDT_MEDIA_HDR_SIZE         12
+
+/* The handle is used when reporting MULTI_AV specific events */
+#define AVDT_MULTI_AV_HANDLE        0xFF
+
+/* The number of bytes needed by the protocol stack for the protocol headers
+** of a media packet.  This is the size of the media packet header, the
+** L2CAP packet header and HCI header.
+*/
+#define AVDT_MEDIA_OFFSET           23
+
+/* The marker bit is used by the application to mark significant events such
+** as frame boundaries in the data stream.  This constant is used to check or
+** set the marker bit in the m_pt parameter of an AVDT_WriteReq()
+** or AVDT_DATA_IND_EVT.
+*/
+#define AVDT_MARKER_SET             0x80
+
+/* SEP Type.  This indicates the stream endpoint type. */
+#define AVDT_TSEP_SRC               0       /* Source SEP */
+#define AVDT_TSEP_SNK               1       /* Sink SEP */
+
+/* initiator/acceptor role for adaption */
+#define AVDT_INT                0       /* initiator */
+#define AVDT_ACP                1       /* acceptor */
+
+/* Media Type.  This indicates the media type of the stream endpoint. */
+#define AVDT_MEDIA_AUDIO            0       /* Audio SEP */
+#define AVDT_MEDIA_VIDEO            1       /* Video SEP */
+#define AVDT_MEDIA_MULTI            2       /* Multimedia SEP */
+
+/* for reporting packets */
+#define AVDT_RTCP_PT_SR         200     /* the packet type - SR (Sender Report) */
+#define AVDT_RTCP_PT_RR         201     /* the packet type - RR (Receiver Report) */
+#define AVDT_RTCP_PT_SDES       202     /* the packet type - SDES (Source Description) */
+typedef UINT8 AVDT_REPORT_TYPE;
+
+#define AVDT_RTCP_SDES_CNAME    1       /* SDES item CNAME */
+#ifndef AVDT_MAX_CNAME_SIZE
+#define AVDT_MAX_CNAME_SIZE     28
+#endif
+
+/* Protocol service capabilities.  This indicates the protocol service
+** capabilities of a stream endpoint.  This value is a mask.
+** Multiple values can be combined with a bitwise OR.
+*/
+#define AVDT_PSC_TRANS              (1<<1)  /* Media transport */
+#define AVDT_PSC_REPORT             (1<<2)  /* Reporting */
+#define AVDT_PSC_RECOV              (1<<3)  /* Recovery */
+#define AVDT_PSC_HDRCMP             (1<<5)  /* Header compression */
+#define AVDT_PSC_MUX                (1<<6)  /* Multiplexing */
+#define AVDT_PSC_DELAY_RPT          (1<<8)  /* Delay Report */
+
+/* Recovery type.  This indicates the recovery type. */
+#define AVDT_RECOV_RFC2733          1       /* RFC2733 recovery */
+
+/* Header compression capabilities.  This indicates the header compression
+** capabilities.  This value is a mask.  Multiple values can be combined
+** with a bitwise OR.
+*/
+#define AVDT_HDRCMP_MEDIA           (1<<5)  /* Available for media packets */
+#define AVDT_HDRCMP_RECOV           (1<<6)  /* Available for recovery packets */
+#define AVDT_HDRCMP_BACKCH          (1<<7)  /* Back channel supported */
+
+/* Multiplexing capabilities mask. */
+#define AVDT_MUX_FRAG               (1<<7)  /* Allow Adaptation Layer Fragmentation */
+
+/* Application service category. This indicates the application
+** service category.
+*/
+#define AVDT_ASC_PROTECT            4       /* Content protection */
+#define AVDT_ASC_CODEC              7       /* Codec */
+
+/* Error codes.  The following are error codes defined in the AVDTP and GAVDP
+** specifications.  These error codes communicate protocol errors between
+** AVDTP and the application.  More detailed descriptions of the error codes
+** and their appropriate use can be found in the AVDTP and GAVDP specifications.
+** These error codes are unrelated to the result values returned by the
+** AVDTP API functions.
+*/
+#define AVDT_ERR_HEADER             0x01    /* Bad packet header format */
+#define AVDT_ERR_LENGTH             0x11    /* Bad packet length */
+#define AVDT_ERR_SEID               0x12    /* Invalid SEID */
+#define AVDT_ERR_IN_USE             0x13    /* The SEP is in use */
+#define AVDT_ERR_NOT_IN_USE         0x14    /* The SEP is not in use */
+#define AVDT_ERR_CATEGORY           0x17    /* Bad service category */
+#define AVDT_ERR_PAYLOAD            0x18    /* Bad payload format */
+#define AVDT_ERR_NSC                0x19    /* Requested command not supported */
+#define AVDT_ERR_INVALID_CAP        0x1A    /* Reconfigure attempted invalid capabilities */
+#define AVDT_ERR_RECOV_TYPE         0x22    /* Requested recovery type not defined */
+#define AVDT_ERR_MEDIA_TRANS        0x23    /* Media transport capability not correct */
+#define AVDT_ERR_RECOV_FMT          0x25    /* Recovery service capability not correct */
+#define AVDT_ERR_ROHC_FMT           0x26    /* Header compression service capability not correct */
+#define AVDT_ERR_CP_FMT             0x27    /* Content protection service capability not correct */
+#define AVDT_ERR_MUX_FMT            0x28    /* Multiplexing service capability not correct */
+#define AVDT_ERR_UNSUP_CFG          0x29    /* Configuration not supported */
+#define AVDT_ERR_BAD_STATE          0x31    /* Message cannot be processed in this state */
+#define AVDT_ERR_REPORT_FMT         0x65    /* Report service capability not correct */
+#define AVDT_ERR_SERVICE            0x80    /* Invalid service category */
+#define AVDT_ERR_RESOURCE           0x81    /* Insufficient resources */
+#define AVDT_ERR_INVALID_MCT        0xC1    /* Invalid Media Codec Type */
+#define AVDT_ERR_UNSUP_MCT          0xC2    /* Unsupported Media Codec Type */
+#define AVDT_ERR_INVALID_LEVEL      0xC3    /* Invalid Level */
+#define AVDT_ERR_UNSUP_LEVEL        0xC4    /* Unsupported Level */
+#define AVDT_ERR_INVALID_CP         0xE0    /* Invalid Content Protection Type */
+#define AVDT_ERR_INVALID_FORMAT     0xE1    /* Invalid Content Protection format */
+
+/* Additional error codes.  This indicates error codes used by AVDTP
+** in addition to the ones defined in the specifications.
+*/
+#define AVDT_ERR_CONNECT            0x07    /* Connection failed. */
+#define AVDT_ERR_TIMEOUT            0x08    /* Response timeout. */
+
+/* Control callback events. */
+#define AVDT_DISCOVER_CFM_EVT       0       /* Discover confirm */
+#define AVDT_GETCAP_CFM_EVT         1       /* Get capabilities confirm */
+#define AVDT_OPEN_CFM_EVT           2       /* Open confirm */
+#define AVDT_OPEN_IND_EVT           3       /* Open indication */
+#define AVDT_CONFIG_IND_EVT         4       /* Configuration indication */
+#define AVDT_START_CFM_EVT          5       /* Start confirm */
+#define AVDT_START_IND_EVT          6       /* Start indication */
+#define AVDT_SUSPEND_CFM_EVT        7       /* Suspend confirm */
+#define AVDT_SUSPEND_IND_EVT        8       /* Suspend indication */
+#define AVDT_CLOSE_CFM_EVT          9       /* Close confirm */
+#define AVDT_CLOSE_IND_EVT          10      /* Close indication */
+#define AVDT_RECONFIG_CFM_EVT       11      /* Reconfiguration confirm */
+#define AVDT_RECONFIG_IND_EVT       12      /* Reconfiguration indication */
+#define AVDT_SECURITY_CFM_EVT       13      /* Security confirm */
+#define AVDT_SECURITY_IND_EVT       14      /* Security indication */
+#define AVDT_WRITE_CFM_EVT          15      /* Write confirm */
+#define AVDT_CONNECT_IND_EVT        16      /* Signaling channel connected */
+#define AVDT_DISCONNECT_IND_EVT     17      /* Signaling channel disconnected */
+#define AVDT_REPORT_CONN_EVT        18      /* Reporting channel connected */
+#define AVDT_REPORT_DISCONN_EVT     19      /* Reporting channel disconnected */
+#define AVDT_DELAY_REPORT_EVT       20      /* Delay report received */
+#define AVDT_DELAY_REPORT_CFM_EVT   21      /* Delay report response received */
+
+#define AVDT_MAX_EVT                (AVDT_DELAY_REPORT_CFM_EVT)
+
+/* PSM for AVDT */
+#define AVDT_PSM                    0x0019
+
+/* Nonsupported protocol command messages.  This value is used in tAVDT_CS */
+#define AVDT_NSC_SUSPEND            0x01    /* Suspend command not supported */
+#define AVDT_NSC_RECONFIG           0x02    /* Reconfigure command not supported */
+#define AVDT_NSC_SECURITY           0x04    /* Security command not supported */
+
+/*****************************************************************************
+**  Type Definitions
+*****************************************************************************/
+
+typedef struct
+{
+    UINT32  ntp_sec;        /* NTP time: seconds relative to 0h UTC on 1 January 1900 */
+    UINT32  ntp_frac;       /* NTP time: the fractional part */
+    UINT32  rtp_time;       /* timestamp in RTP header */
+    UINT32  pkt_count;      /* sender's packet count: since starting transmission
+                             * up until the time this SR packet was generated. */
+    UINT32  octet_count;    /* sender's octet count: same comment */
+} tAVDT_SENDER_INFO;
+
+typedef struct
+{
+    UINT8   frag_lost;      /* fraction lost since last RR */
+    UINT32  packet_lost;    /* cumulative number of packets lost since the beginning */
+    UINT32  seq_num_rcvd;   /* extended highest sequence number received */
+    UINT32  jitter;         /* interarrival jitter */
+    UINT32  lsr;            /* last SR timestamp */
+    UINT32  dlsr;           /* delay since last SR */
+} tAVDT_REPORT_BLK;
+
+typedef union
+{
+    tAVDT_SENDER_INFO   sr;
+    tAVDT_REPORT_BLK    rr;
+    UINT8               cname[AVDT_MAX_CNAME_SIZE + 1];
+} tAVDT_REPORT_DATA;
+
+/* This structure contains parameters which are set at registration. */
+typedef struct {
+    UINT16      ctrl_mtu;   /* L2CAP MTU of the AVDTP signaling channel */
+    UINT8       ret_tout;   /* AVDTP signaling retransmission timeout */
+    UINT8       sig_tout;   /* AVDTP signaling message timeout */
+    UINT8       idle_tout;  /* AVDTP idle signaling channel timeout */
+    UINT8       sec_mask;   /* Security mask for BTM_SetSecurityLevel() */
+} tAVDT_REG;
+
+/* This structure contains the SEP information.  This information is
+** transferred during the discovery procedure.
+*/
+typedef struct {
+    BOOLEAN     in_use;         /* TRUE if stream is currently in use */
+    UINT8       seid;           /* Stream endpoint identifier */
+    UINT8       media_type;     /* Media type */
+    UINT8       tsep;           /* SEP type */
+} tAVDT_SEP_INFO;
+
+/* This structure contains the SEP configuration. */
+typedef struct {
+    UINT8   codec_info[AVDT_CODEC_SIZE];        /* Codec capabilities array */
+    UINT8   protect_info[AVDT_PROTECT_SIZE];    /* Content protection capabilities */
+    UINT8   num_codec;                          /* Number of media codec information elements */
+    UINT8   num_protect;                        /* Number of content protection information elements */
+    UINT16  psc_mask;                           /* Protocol service capabilities mask */
+    UINT8   recov_type;                         /* Recovery type */
+    UINT8   recov_mrws;                         /* Maximum recovery window size */
+    UINT8   recov_mnmp;                         /* Recovery maximum number of media packets */
+    UINT8   hdrcmp_mask;                        /* Header compression capabilities */
+#if AVDT_MULTIPLEXING == TRUE
+    UINT8   mux_mask;                           /* Multiplexing capabilities. AVDT_MUX_XXX bits can be combined with a bitwise OR */
+    UINT8   mux_tsid_media;                     /* TSID for media transport session */
+    UINT8   mux_tcid_media;                     /* TCID for media transport session */
+    UINT8   mux_tsid_report;                    /* TSID for reporting transport session */
+    UINT8   mux_tcid_report;                    /* TCID for reporting transport session */
+    UINT8   mux_tsid_recov;                     /* TSID for recovery transport session */
+    UINT8   mux_tcid_recov;                     /* TCID for recovery transport session */
+#endif
+} tAVDT_CFG;
+
+/* Header structure for callback event parameters. */
+typedef struct {
+    UINT8           err_code;           /* Zero if operation succeeded; nonzero if operation failed */
+    UINT8           err_param;          /* Error parameter included for some events */
+    UINT8           label;              /* Transaction label */
+    UINT8           seid;               /* For internal use only */
+    UINT8           sig_id;             /* For internal use only */
+    UINT8           ccb_idx;            /* For internal use only */
+} tAVDT_EVT_HDR;
+
+/* This data structure is associated with the AVDT_GETCAP_CFM_EVT,
+** AVDT_RECONFIG_IND_EVT, and AVDT_RECONFIG_CFM_EVT.
+*/
+typedef struct {
+    tAVDT_EVT_HDR   hdr;                /* Event header */
+    tAVDT_CFG       *p_cfg;             /* Pointer to configuration for this SEP */
+} tAVDT_CONFIG;
+
+/* This data structure is associated with the AVDT_CONFIG_IND_EVT. */
+typedef struct {
+    tAVDT_EVT_HDR   hdr;                /* Event header */
+    tAVDT_CFG       *p_cfg;             /* Pointer to configuration for this SEP */
+    UINT8           int_seid;           /* Stream endpoint ID of stream initiating the operation */
+} tAVDT_SETCONFIG;
+
+/* This data structure is associated with the AVDT_OPEN_IND_EVT and AVDT_OPEN_CFM_EVT. */
+typedef struct {
+    tAVDT_EVT_HDR   hdr;                /* Event header */
+    UINT16          peer_mtu;           /* Transport channel L2CAP MTU of the peer */
+    UINT16          lcid;               /* L2CAP LCID for media channel */
+} tAVDT_OPEN;
+
+/* This data structure is associated with the AVDT_SECURITY_IND_EVT
+** and AVDT_SECURITY_CFM_EVT.
+*/
+typedef struct {
+    tAVDT_EVT_HDR   hdr;                /* Event header */
+    UINT8           *p_data;            /* Pointer to security data */
+    UINT16          len;                /* Length in bytes of the security data */
+} tAVDT_SECURITY;
+
+/* This data structure is associated with the AVDT_DISCOVER_CFM_EVT. */
+typedef struct {
+    tAVDT_EVT_HDR   hdr;                /* Event header */
+    tAVDT_SEP_INFO  *p_sep_info;        /* Pointer to SEP information */
+    UINT8           num_seps;           /* Number of stream endpoints */
+} tAVDT_DISCOVER;
+
+/* This data structure is associated with the AVDT_DELAY_REPORT_EVT. */
+typedef struct {
+    tAVDT_EVT_HDR   hdr;                /* Event header */
+    UINT16          delay;              /* Delay value */
+} tAVDT_DELAY_RPT;
+
+/* Union of all control callback event data structures */
+typedef union {
+    tAVDT_EVT_HDR       hdr;
+    tAVDT_DISCOVER      discover_cfm;
+    tAVDT_CONFIG        getcap_cfm;
+    tAVDT_OPEN          open_cfm;
+    tAVDT_OPEN          open_ind;
+    tAVDT_SETCONFIG     config_ind;
+    tAVDT_EVT_HDR       start_cfm;
+    tAVDT_EVT_HDR       suspend_cfm;
+    tAVDT_EVT_HDR       close_cfm;
+    tAVDT_CONFIG        reconfig_cfm;
+    tAVDT_CONFIG        reconfig_ind;
+    tAVDT_SECURITY      security_cfm;
+    tAVDT_SECURITY      security_ind;
+    tAVDT_EVT_HDR       connect_ind;
+    tAVDT_EVT_HDR       disconnect_ind;
+    tAVDT_EVT_HDR       report_conn;
+    tAVDT_DELAY_RPT     delay_rpt_cmd;
+} tAVDT_CTRL;
+
+/* This is the control callback function.  This function passes control events
+** to the application.  This function is required for all registered stream
+** endpoints and for the AVDT_DiscoverReq() and AVDT_GetCapReq() functions.
+**
+*/
+typedef void (tAVDT_CTRL_CBACK)(UINT8 handle, BD_ADDR bd_addr, UINT8 event,
+                                tAVDT_CTRL *p_data);
+
+/* This is the data callback function.  It is executed when AVDTP has a media
+** packet ready for the application.  This function is required for SNK
+** endpoints and not applicable for SRC endpoints.
+*/
+typedef void (tAVDT_DATA_CBACK)(UINT8 handle, BT_HDR *p_pkt, UINT32 time_stamp,
+                                UINT8 m_pt);
+
+#if AVDT_MULTIPLEXING == TRUE
+/* This is the second version of the data callback function. This version uses
+** application buffer assigned by AVDT_SetMediaBuf. Caller can assign different
+** buffer during callback or can leave the current buffer for further using.
+** This callback is called when AVDTP has a media packet ready for the application.
+** This function is required for SNK endpoints and not applicable for SRC endpoints.
+*/
+typedef void (tAVDT_MEDIA_CBACK)(UINT8 handle, UINT8 *p_payload, UINT32 payload_len,
+                                UINT32 time_stamp, UINT16 seq_num, UINT8 m_pt, UINT8 marker);
+#endif
+
+#if AVDT_REPORTING == TRUE
+/* This is the report callback function.  It is executed when AVDTP has a reporting
+** packet ready for the application.  This function is required for streams
+** created with AVDT_PSC_REPORT.
+*/
+typedef void (tAVDT_REPORT_CBACK)(UINT8 handle, AVDT_REPORT_TYPE type,
+                                tAVDT_REPORT_DATA *p_data);
+#endif
+
+typedef UINT16 (tAVDT_GETCAP_REQ) (BD_ADDR bd_addr, UINT8 seid, tAVDT_CFG *p_cfg, tAVDT_CTRL_CBACK *p_cback);
+
+/* This structure contains information required when a stream is created.
+** It is passed to the AVDT_CreateStream() function.
+*/
+typedef struct {
+    tAVDT_CFG           cfg;            /* SEP configuration */
+    tAVDT_CTRL_CBACK    *p_ctrl_cback;  /* Control callback function */
+    tAVDT_DATA_CBACK    *p_data_cback;  /* Data callback function */
+#if AVDT_MULTIPLEXING == TRUE
+    tAVDT_MEDIA_CBACK   *p_media_cback; /* Media callback function. It will be called only if p_data_cback is NULL */
+#endif
+#if AVDT_REPORTING == TRUE
+    tAVDT_REPORT_CBACK  *p_report_cback;/* Report callback function. */
+#endif
+    UINT16              mtu;            /* The L2CAP MTU of the transport channel */
+    UINT16              flush_to;       /* The L2CAP flush timeout of the transport channel */
+    UINT8               tsep;           /* SEP type */
+    UINT8               media_type;     /* Media type */
+    UINT16              nsc_mask;       /* Nonsupported protocol command messages */
+} tAVDT_CS;
+
+/* AVDT data option mask is used in the write request */
+#define AVDT_DATA_OPT_NONE      0x00         /* No option still add RTP header */
+#define AVDT_DATA_OPT_NO_RTP   (0x01 << 0)   /* Skip adding RTP header */
+
+typedef UINT8 tAVDT_DATA_OPT_MASK;
+
+
+
+/*****************************************************************************
+**  External Function Declarations
+*****************************************************************************/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+/*******************************************************************************
+**
+** Function         AVDT_Register
+**
+** Description      This is the system level registration function for the
+**                  AVDTP protocol.  This function initializes AVDTP and
+**                  prepares the protocol stack for its use.  This function
+**                  must be called once by the system or platform using AVDTP
+**                  before the other functions of the API an be used.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void AVDT_Register(tAVDT_REG *p_reg, tAVDT_CTRL_CBACK *p_cback);
+
+/*******************************************************************************
+**
+** Function         AVDT_Deregister
+**
+** Description      This function is called to deregister use AVDTP protocol.
+**                  It is called when AVDTP is no longer being used by any
+**                  application in the system.  Before this function can be
+**                  called, all streams must be removed with AVDT_RemoveStream().
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void AVDT_Deregister(void);
+
+
+/*******************************************************************************
+**
+** Function         AVDT_SINK_Activate
+**
+** Description      Activate SEP of A2DP Sink. In Use parameter is adjusted.
+**                  In Use will be made false in case of activation. A2DP SRC
+**                  will receive in_use as false and can open A2DP Sink
+**                  connection
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void AVDT_SINK_Activate(void);
+
+/*******************************************************************************
+**
+** Function         AVDT_SINK_Deactivate
+**
+** Description      Deactivate SEP of A2DP Sink. In Use parameter is adjusted.
+**                  In Use will be made TRUE in case of activation. A2DP SRC
+**                  will receive in_use as true and will not open A2DP Sink
+**                  connection
+**
+** Returns          void.
+**
+*******************************************************************************/
+extern void AVDT_SINK_Deactivate(void);
+
+/*******************************************************************************
+**
+** Function         AVDT_AbortReq
+**
+** Description      Trigger Abort request to pass AVDTP Abort related mandatory
+**                  PTS Test case.
+**
+** Returns          void.
+**
+*******************************************************************************/
+extern void AVDT_AbortReq(UINT8 handle);
+
+/*******************************************************************************
+**
+** Function         AVDT_CreateStream
+**
+** Description      Create a stream endpoint.  After a stream endpoint is
+**                  created an application can initiate a connection between
+**                  this endpoint and an endpoint on a peer device.  In
+**                  addition, a peer device can discover, get the capabilities,
+**                  and connect to this endpoint.
+**
+**
+** Returns          AVDT_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+extern UINT16 AVDT_CreateStream(UINT8 *p_handle, tAVDT_CS *p_cs);
+
+/*******************************************************************************
+**
+** Function         AVDT_RemoveStream
+**
+** Description      Remove a stream endpoint.  This function is called when
+**                  the application is no longer using a stream endpoint.
+**                  If this function is called when the endpoint is connected
+**                  the connection is closed and then the stream endpoint
+**                  is removed.
+**
+**
+** Returns          AVDT_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+extern UINT16 AVDT_RemoveStream(UINT8 handle);
+
+/*******************************************************************************
+**
+** Function         AVDT_DiscoverReq
+**
+** Description      This function initiates a connection to the AVDTP service
+**                  on the peer device, if not already present, and discovers
+**                  the stream endpoints on the peer device.  (Please note
+**                  that AVDTP discovery is unrelated to SDP discovery).
+**                  This function can be called at any time regardless of whether
+**                  there is an AVDTP connection to the peer device.
+**
+**                  When discovery is complete, an AVDT_DISCOVER_CFM_EVT
+**                  is sent to the application via its callback function.
+**                  The application must not call AVDT_GetCapReq() or
+**                  AVDT_DiscoverReq() again to the same device until
+**                  discovery is complete.
+**
+**                  The memory addressed by sep_info is allocated by the
+**                  application.  This memory is written to by AVDTP as part
+**                  of the discovery procedure.  This memory must remain
+**                  accessible until the application receives the
+**                  AVDT_DISCOVER_CFM_EVT.
+**
+** Returns          AVDT_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+extern UINT16 AVDT_DiscoverReq(BD_ADDR bd_addr, tAVDT_SEP_INFO *p_sep_info,
+                               UINT8 max_seps, tAVDT_CTRL_CBACK *p_cback);
+
+
+/*******************************************************************************
+**
+** Function         AVDT_GetCapReq
+**
+** Description      This function initiates a connection to the AVDTP service
+**                  on the peer device, if not already present, and gets the
+**                  capabilities of a stream endpoint on the peer device.
+**                  This function can be called at any time regardless of
+**                  whether there is an AVDTP connection to the peer device.
+**
+**                  When the procedure is complete, an AVDT_GETCAP_CFM_EVT is
+**                  sent to the application via its callback function.  The
+**                  application must not call AVDT_GetCapReq() or
+**                  AVDT_DiscoverReq() again until the procedure is complete.
+**
+**                  The memory pointed to by p_cfg is allocated by the
+**                  application.  This memory is written to by AVDTP as part
+**                  of the get capabilities procedure.  This memory must
+**                  remain accessible until the application receives
+**                  the AVDT_GETCAP_CFM_EVT.
+**
+** Returns          AVDT_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+extern UINT16 AVDT_GetCapReq(BD_ADDR bd_addr, UINT8 seid, tAVDT_CFG *p_cfg,
+                             tAVDT_CTRL_CBACK *p_cback);
+
+/*******************************************************************************
+**
+** Function         AVDT_GetAllCapReq
+**
+** Description      This function initiates a connection to the AVDTP service
+**                  on the peer device, if not already present, and gets the
+**                  capabilities of a stream endpoint on the peer device.
+**                  This function can be called at any time regardless of
+**                  whether there is an AVDTP connection to the peer device.
+**
+**                  When the procedure is complete, an AVDT_GETCAP_CFM_EVT is
+**                  sent to the application via its callback function.  The
+**                  application must not call AVDT_GetCapReq() or
+**                  AVDT_DiscoverReq() again until the procedure is complete.
+**
+**                  The memory pointed to by p_cfg is allocated by the
+**                  application.  This memory is written to by AVDTP as part
+**                  of the get capabilities procedure.  This memory must
+**                  remain accessible until the application receives
+**                  the AVDT_GETCAP_CFM_EVT.
+**
+** Returns          AVDT_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+extern UINT16 AVDT_GetAllCapReq(BD_ADDR bd_addr, UINT8 seid, tAVDT_CFG *p_cfg,
+                                tAVDT_CTRL_CBACK *p_cback);
+
+/*******************************************************************************
+**
+** Function         AVDT_DelayReport
+**
+** Description      This functions sends a Delay Report to the peer device
+**                  that is associated with a particular SEID.
+**                  This function is called by SNK device.
+**
+** Returns          AVDT_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+extern UINT16 AVDT_DelayReport(UINT8 handle, UINT8 seid, UINT16 delay);
+
+/*******************************************************************************
+**
+** Function         AVDT_OpenReq
+**
+** Description      This function initiates a connection to the AVDTP service
+**                  on the peer device, if not already present, and connects
+**                  to a stream endpoint on a peer device.  When the connection
+**                  is completed, an AVDT_OPEN_CFM_EVT is sent to the
+**                  application via the control callback function for this handle.
+**
+** Returns          AVDT_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+extern UINT16 AVDT_OpenReq(UINT8 handle, BD_ADDR bd_addr, UINT8 seid,
+                           tAVDT_CFG *p_cfg);
+
+
+/*******************************************************************************
+**
+** Function         AVDT_ConfigRsp
+**
+** Description      Respond to a configure request from the peer device.  This
+**                  function must be called if the application receives an
+**                  AVDT_CONFIG_IND_EVT through its control callback.
+**
+**
+** Returns          AVDT_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+extern UINT16 AVDT_ConfigRsp(UINT8 handle, UINT8 label, UINT8 error_code,
+                             UINT8 category);
+
+/*******************************************************************************
+**
+** Function         AVDT_StartReq
+**
+** Description      Start one or more stream endpoints.  This initiates the
+**                  transfer of media packets for the streams.  All stream
+**                  endpoints must previously be opened.  When the streams
+**                  are started, an AVDT_START_CFM_EVT is sent to the
+**                  application via the control callback function for each stream.
+**
+**
+** Returns          AVDT_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+extern UINT16 AVDT_StartReq(UINT8 *p_handles, UINT8 num_handles);
+
+/*******************************************************************************
+**
+** Function         AVDT_SuspendReq
+**
+** Description      Suspend one or more stream endpoints. This suspends the
+**                  transfer of media packets for the streams.  All stream
+**                  endpoints must previously be open and started.  When the
+**                  streams are suspended, an AVDT_SUSPEND_CFM_EVT is sent to
+**                  the application via the control callback function for
+**                  each stream.
+**
+**
+** Returns          AVDT_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+extern UINT16 AVDT_SuspendReq(UINT8 *p_handles, UINT8 num_handles);
+
+/*******************************************************************************
+**
+** Function         AVDT_CloseReq
+**
+** Description      Close a stream endpoint.  This stops the transfer of media
+**                  packets and closes the transport channel associated with
+**                  this stream endpoint.  When the stream is closed, an
+**                  AVDT_CLOSE_CFM_EVT is sent to the application via the
+**                  control callback function for this handle.
+**
+**
+** Returns          AVDT_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+extern UINT16 AVDT_CloseReq(UINT8 handle);
+
+/*******************************************************************************
+**
+** Function         AVDT_ReconfigReq
+**
+** Description      Reconfigure a stream endpoint.  This allows the application
+**                  to change the codec or content protection capabilities of
+**                  a stream endpoint after it has been opened.  This function
+**                  can only be called if the stream is opened but not started
+**                  or if the stream has been suspended.  When the procedure
+**                  is completed, an AVDT_RECONFIG_CFM_EVT is sent to the
+**                  application via the control callback function for this handle.
+**
+**
+** Returns          AVDT_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+extern UINT16 AVDT_ReconfigReq(UINT8 handle, tAVDT_CFG *p_cfg);
+
+/*******************************************************************************
+**
+** Function         AVDT_ReconfigRsp
+**
+** Description      Respond to a reconfigure request from the peer device.
+**                  This function must be called if the application receives
+**                  an AVDT_RECONFIG_IND_EVT through its control callback.
+**
+**
+** Returns          AVDT_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+extern UINT16 AVDT_ReconfigRsp(UINT8 handle, UINT8 label, UINT8 error_code,
+                               UINT8 category);
+
+/*******************************************************************************
+**
+** Function         AVDT_SecurityReq
+**
+** Description      Send a security request to the peer device.  When the
+**                  security procedure is completed, an AVDT_SECURITY_CFM_EVT
+**                  is sent to the application via the control callback function
+**                  for this handle.  (Please note that AVDTP security procedures
+**                  are unrelated to Bluetooth link level security.)
+**
+**
+** Returns          AVDT_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+extern UINT16 AVDT_SecurityReq(UINT8 handle, UINT8 *p_data, UINT16 len);
+
+/*******************************************************************************
+**
+** Function         AVDT_SecurityRsp
+**
+** Description      Respond to a security request from the peer device.
+**                  This function must be called if the application receives
+**                  an AVDT_SECURITY_IND_EVT through its control callback.
+**                  (Please note that AVDTP security procedures are unrelated
+**                  to Bluetooth link level security.)
+**
+**
+** Returns          AVDT_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+extern UINT16 AVDT_SecurityRsp(UINT8 handle, UINT8 label, UINT8 error_code,
+                               UINT8 *p_data, UINT16 len);
+
+/*******************************************************************************
+**
+** Function         AVDT_WriteReq
+**
+** Description      Send a media packet to the peer device.  The stream must
+**                  be started before this function is called.  Also, this
+**                  function can only be called if the stream is a SRC.
+**
+**                  When AVDTP has sent the media packet and is ready for the
+**                  next packet, an AVDT_WRITE_CFM_EVT is sent to the
+**                  application via the control callback.  The application must
+**                  wait for the AVDT_WRITE_CFM_EVT before it makes the next
+**                  call to AVDT_WriteReq().  If the applications calls
+**                  AVDT_WriteReq() before it receives the event the packet
+**                  will not be sent.  The application may make its first call
+**                  to AVDT_WriteReq() after it receives an AVDT_START_CFM_EVT
+**                  or AVDT_START_IND_EVT.
+**
+**                  The application passes the packet using the BT_HDR structure.
+**                  This structure is described in section 2.1.  The offset
+**                  field must be equal to or greater than AVDT_MEDIA_OFFSET.
+**                  This allows enough space in the buffer for the L2CAP and
+**                  AVDTP headers.
+**
+**                  The memory pointed to by p_pkt must be a GKI buffer
+**                  allocated by the application.  This buffer will be freed
+**                  by the protocol stack; the application must not free
+**                  this buffer.
+**
+**
+** Returns          AVDT_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+extern UINT16 AVDT_WriteReq(UINT8 handle, BT_HDR *p_pkt, UINT32 time_stamp,
+                            UINT8 m_pt);
+/*******************************************************************************
+**
+** Function         AVDT_WriteReqOpt
+**
+** Description      Send a media packet to the peer device.  The stream must
+**                  be started before this function is called.  Also, this
+**                  function can only be called if the stream is a SRC
+**
+**                  When AVDTP has sent the media packet and is ready for the
+**                  next packet, an AVDT_WRITE_CFM_EVT is sent to the
+**                  application via the control callback.  The application must
+**                  wait for the AVDT_WRITE_CFM_EVT before it makes the next
+**                  call to AVDT_WriteReq().  If the applications calls
+**                  AVDT_WriteReq() before it receives the event the packet
+**                  will not be sent.  The application may make its first call
+**                  to AVDT_WriteReq() after it receives an AVDT_START_CFM_EVT
+**                  or AVDT_START_IND_EVT.
+**
+**                  The application passes the packet using the BT_HDR structure
+**                  This structure is described in section 2.1.  The offset
+**                  field must be equal to or greater than AVDT_MEDIA_OFFSET
+**                  (if NO_RTP is specified, L2CAP_MIN_OFFSET can be used)
+**                  This allows enough space in the buffer for the L2CAP and
+**                  AVDTP headers.
+**
+**                  The memory pointed to by p_pkt must be a GKI buffer
+**                  allocated by the application.  This buffer will be freed
+**                  by the protocol stack; the application must not free
+**                  this buffer.
+**
+**                  The opt parameter allows passing specific options like:
+**                  - NO_RTP : do not add the RTP header to buffer
+**
+** Returns          AVDT_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+extern UINT16 AVDT_WriteReqOpt(UINT8 handle, BT_HDR *p_pkt, UINT32 time_stamp,
+                               UINT8 m_pt, tAVDT_DATA_OPT_MASK opt);
+
+/*******************************************************************************
+**
+** Function         AVDT_ConnectReq
+**
+** Description      This function initiates an AVDTP signaling connection
+**                  to the peer device.  When the connection is completed, an
+**                  AVDT_CONNECT_IND_EVT is sent to the application via its
+**                  control callback function.  If the connection attempt fails
+**                  an AVDT_DISCONNECT_IND_EVT is sent.  The security mask
+**                  parameter overrides the outgoing security mask set in
+**                  AVDT_Register().
+**
+** Returns          AVDT_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+extern UINT16 AVDT_ConnectReq(BD_ADDR bd_addr, UINT8 sec_mask,
+                              tAVDT_CTRL_CBACK *p_cback);
+
+/*******************************************************************************
+**
+** Function         AVDT_DisconnectReq
+**
+** Description      This function disconnect an AVDTP signaling connection
+**                  to the peer device.  When disconnected an
+**                  AVDT_DISCONNECT_IND_EVT is sent to the application via its
+**                  control callback function.
+**
+** Returns          AVDT_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+extern UINT16 AVDT_DisconnectReq(BD_ADDR bd_addr, tAVDT_CTRL_CBACK *p_cback);
+
+/*******************************************************************************
+**
+** Function         AVDT_GetL2CapChannel
+**
+** Description      Get the L2CAP CID used by the handle.
+**
+** Returns          CID if successful, otherwise 0.
+**
+*******************************************************************************/
+extern UINT16 AVDT_GetL2CapChannel(UINT8 handle);
+
+/*******************************************************************************
+**
+** Function         AVDT_GetSignalChannel
+**
+** Description      Get the L2CAP CID used by the signal channel of the given handle.
+**
+** Returns          CID if successful, otherwise 0.
+**
+*******************************************************************************/
+extern UINT16 AVDT_GetSignalChannel(UINT8 handle, BD_ADDR bd_addr);
+
+/*******************************************************************************
+**
+** Function         AVDT_SetMediaBuf
+**
+** Description      Assigns buffer for media packets or forbids using of assigned
+**                  buffer if argument p_buf is NULL. This function can only
+**                  be called if the stream is a SNK.
+**
+**                  AVDTP uses this buffer to reassemble fragmented media packets.
+**                  When AVDTP receives a complete media packet, it calls the
+**                  p_media_cback assigned by AVDT_CreateStream().
+**                  This function can be called during callback to assign a
+**                  different buffer for next media packet or can leave the current
+**                  buffer for next packet.
+**
+** Returns          AVDT_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+extern UINT16 AVDT_SetMediaBuf(UINT8 handle, UINT8 *p_buf, UINT32 buf_len);
+
+/*******************************************************************************
+**
+** Function         AVDT_SendReport
+**
+** Description
+**
+**
+**
+** Returns
+**
+*******************************************************************************/
+extern UINT16 AVDT_SendReport(UINT8 handle, AVDT_REPORT_TYPE type,
+                              tAVDT_REPORT_DATA *p_data);
+
+/******************************************************************************
+**
+** Function         AVDT_SetTraceLevel
+**
+** Description      Sets the trace level for AVDT. If 0xff is passed, the
+**                  current trace level is returned.
+**
+**                  Input Parameters:
+**                      new_level:  The level to set the AVDT tracing to:
+**                      0xff-returns the current setting.
+**                      0-turns off tracing.
+**                      >= 1-Errors.
+**                      >= 2-Warnings.
+**                      >= 3-APIs.
+**                      >= 4-Events.
+**                      >= 5-Debug.
+**
+** Returns          The new trace level or current trace level if
+**                  the input parameter is 0xff.
+**
+******************************************************************************/
+extern UINT8 AVDT_SetTraceLevel (UINT8 new_level);
+
+#ifdef __cplusplus
+}
+#endif
+
+
+#endif /* AVDT_API_H */
diff --git a/rtkbt/code/bt/stack/include/avdtc_api.h b/rtkbt/code/bt/stack/include/avdtc_api.h
new file mode 100755
index 0000000..96b20e7
--- /dev/null
+++ b/rtkbt/code/bt/stack/include/avdtc_api.h
@@ -0,0 +1,230 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2002-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This interface file contains the interface AVDTP conformance API.  These
+ *  additional API functions and callback events are provided for
+ *  conformance testing purposes only.  They are not intended to be used by
+ *  an application.
+ *
+ ******************************************************************************/
+#ifndef AVDT_CAPI_H
+#define AVDT_CAPI_H
+
+#include "avdt_api.h"
+
+/* start AVDTC events here to distinguish from AVDT events */
+#define AVDTC_EVT_BEGIN             0x80
+
+#define AVDTC_DISCOVER_IND_EVT      (0 + AVDTC_EVT_BEGIN)   /* Discover indication */
+#define AVDTC_GETCAP_IND_EVT        (1 + AVDTC_EVT_BEGIN)   /* Get capabilities indication */
+#define AVDTC_SETCONFIG_CFM_EVT     (2 + AVDTC_EVT_BEGIN)   /* Set configuration confirm */
+#define AVDTC_GETCONFIG_IND_EVT     (3 + AVDTC_EVT_BEGIN)   /* Get configuration indication */
+#define AVDTC_GETCONFIG_CFM_EVT     (4 + AVDTC_EVT_BEGIN)   /* Get configuration confirm */
+#define AVDTC_OPEN_IND_EVT          (5 + AVDTC_EVT_BEGIN)   /* Open indication */
+#define AVDTC_START_IND_EVT         (6 + AVDTC_EVT_BEGIN)   /* Start indication */
+#define AVDTC_CLOSE_IND_EVT         (7 + AVDTC_EVT_BEGIN)   /* Close indication */
+#define AVDTC_SUSPEND_IND_EVT       (8 + AVDTC_EVT_BEGIN)   /* Suspend indication */
+#define AVDTC_ABORT_IND_EVT         (9 + AVDTC_EVT_BEGIN)   /* Abort indication */
+#define AVDTC_ABORT_CFM_EVT         (10 + AVDTC_EVT_BEGIN)  /* Abort confirm */
+
+typedef struct {
+    tAVDT_EVT_HDR   hdr;                        /* Event header */
+    UINT8           seid_list[AVDT_NUM_SEPS];   /* Array of SEID values */
+    UINT8           num_seps;                   /* Number of values in array */
+} tAVDT_MULTI;
+
+/* Union of all control callback event data structures */
+typedef union {
+    tAVDT_EVT_HDR       hdr;
+    tAVDT_CONFIG        getconfig_cfm;
+    tAVDT_MULTI         start_ind;
+    tAVDT_MULTI         suspend_ind;
+} tAVDTC_CTRL;
+
+typedef void tAVDTC_CTRL_CBACK(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDTC_CTRL *p_data);
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+/*******************************************************************************
+**
+** Function         AVDTC_Init
+**
+** Description      This function is called to begin using the conformance API.
+**                  It must be called after AVDT_Register() and before any
+**                  other API or conformance API functions are called.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void AVDTC_Init(tAVDTC_CTRL_CBACK *p_cback);
+
+/*******************************************************************************
+**
+** Function         AVDTC_DiscoverRsp
+**
+** Description      Send a discover response.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void AVDTC_DiscoverRsp(BD_ADDR bd_addr, UINT8 label,
+                              tAVDT_SEP_INFO sep_info[], UINT8 num_seps);
+
+/*******************************************************************************
+**
+** Function         AVDTC_GetCapRsp
+**
+** Description     Send a get capabilities response.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void AVDTC_GetCapRsp(BD_ADDR bd_addr, UINT8 label, tAVDT_CFG *p_cap);
+
+/*******************************************************************************
+**
+** Function         AVDTC_GetAllCapRsp
+**
+** Description     Send a get all capabilities response.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void AVDTC_GetAllCapRsp(BD_ADDR bd_addr, UINT8 label, tAVDT_CFG *p_cap);
+
+/*******************************************************************************
+**
+** Function         AVDTC_GetConfigReq
+**
+** Description      Send a get configuration request.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void AVDTC_GetConfigReq(UINT8 handle);
+
+/*******************************************************************************
+**
+** Function         AVDTC_GetConfigRsp
+**
+** Description      Send a get configuration response.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void AVDTC_GetConfigRsp(UINT8 handle, UINT8 label, tAVDT_CFG *p_cfg);
+
+/*******************************************************************************
+**
+** Function         AVDTC_OpenReq
+**
+** Description      Send an open request.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void AVDTC_OpenReq(UINT8 handle);
+
+/*******************************************************************************
+**
+** Function         AVDTC_OpenRsp
+**
+** Description      Send an open response.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void AVDTC_OpenRsp(UINT8 handle, UINT8 label);
+
+/*******************************************************************************
+**
+** Function         AVDTC_StartRsp
+**
+** Description      Send a start response.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void AVDTC_StartRsp(UINT8 *p_handles, UINT8 num_handles, UINT8 label);
+
+/*******************************************************************************
+**
+** Function         AVDTC_CloseRsp
+**
+** Description      Send a close response.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void AVDTC_CloseRsp(UINT8 handle, UINT8 label);
+
+/*******************************************************************************
+**
+** Function         AVDTC_SuspendRsp
+**
+** Description      Send a suspend response.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void AVDTC_SuspendRsp(UINT8 *p_handles, UINT8 num_handles, UINT8 label);
+
+/*******************************************************************************
+**
+** Function         AVDTC_AbortReq
+**
+** Description      Send an abort request.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void AVDTC_AbortReq(UINT8 handle);
+
+/*******************************************************************************
+**
+** Function         AVDTC_AbortRsp
+**
+** Description      Send an abort response.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void AVDTC_AbortRsp(UINT8 handle, UINT8 label);
+
+/*******************************************************************************
+**
+** Function         AVDTC_Rej
+**
+** Description      Send a reject message.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void AVDTC_Rej(UINT8 handle, BD_ADDR bd_addr, UINT8 cmd, UINT8 label,
+                      UINT8 err_code, UINT8 err_param);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* AVDT_CAPI_H */
diff --git a/rtkbt/code/bt/stack/include/avrc_api.h b/rtkbt/code/bt/stack/include/avrc_api.h
new file mode 100755
index 0000000..d6fa4d9
--- /dev/null
+++ b/rtkbt/code/bt/stack/include/avrc_api.h
@@ -0,0 +1,672 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2006-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  nterface to AVRCP Application Programming Interface
+ *
+ ******************************************************************************/
+#ifndef AVRC_API_H
+#define AVRC_API_H
+#include "bt_target.h"
+#include "avct_api.h"
+#include "sdp_api.h"
+#include "avrc_defs.h"
+
+/*****************************************************************************
+**  constants
+*****************************************************************************/
+
+/* API function return value result codes. */
+#define AVRC_SUCCESS        AVCT_SUCCESS        /* 0 Function successful */
+#define AVRC_NO_RESOURCES   AVCT_NO_RESOURCES   /* 1 Not enough resources */
+#define AVRC_BAD_HANDLE     AVCT_BAD_HANDLE     /* 2 Bad handle */
+#define AVRC_PID_IN_USE     AVCT_PID_IN_USE     /* 3 PID already in use */
+#define AVRC_NOT_OPEN       AVCT_NOT_OPEN       /* 4 Connection not open */
+#define AVRC_MSG_TOO_BIG    5                   /* 5 the message length exceed the MTU of the browsing channel */
+#define AVRC_FAIL           0x10                /* 0x10 generic failure */
+#define AVRC_BAD_PARAM      0x11                /* 0x11 bad parameter   */
+
+/* Control role - same as AVCT_TARGET/AVCT_CONTROL */
+#define AVRC_CT_TARGET      1                   /* target  */
+#define AVRC_CT_CONTROL     2                   /* controller  */
+#define AVRC_CT_PASSIVE     4                   /* If conflict, allow the other side to succeed  */
+
+/* Connection role */
+#define AVRC_CONN_INT       AVCT_INT            /* initiator */
+#define AVRC_CONN_ACP       AVCT_ACP            /* Acceptor  */
+
+
+/* AVRC CTRL events */
+/* AVRC_OPEN_IND_EVT event is sent when the connection is successfully opened.
+ * This eventis sent in response to an AVRC_Open(). */
+#define AVRC_OPEN_IND_EVT       0
+
+/* AVRC_CLOSE_IND_EVT event is sent when a connection is closed.
+ * This event can result from a call to AVRC_Close() or when the peer closes
+ * the connection.  It is also sent when a connection attempted through
+ * AVRC_Open() fails. */
+#define AVRC_CLOSE_IND_EVT      1
+
+/* AVRC_CONG_IND_EVT event indicates that AVCTP is congested and cannot send
+ * any more messages. */
+#define AVRC_CONG_IND_EVT       2
+
+/* AVRC_UNCONG_IND_EVT event indicates that AVCTP is uncongested and ready to
+ * send messages. */
+#define AVRC_UNCONG_IND_EVT     3
+
+ /* AVRC_BROWSE_OPEN_IND_EVT event is sent when the browse channel is successfully opened.
+ * This eventis sent in response to an AVRC_Open() or AVRC_OpenBrowse() . */
+#define AVRC_BROWSE_OPEN_IND_EVT       4
+
+/* AVRC_BROWSE_CLOSE_IND_EVT event is sent when a browse channel is closed.
+ * This event can result from a call to AVRC_Close(), AVRC_CloseBrowse() or when the peer closes
+ * the connection.  It is also sent when a connection attempted through
+ * AVRC_OpenBrowse() fails. */
+#define AVRC_BROWSE_CLOSE_IND_EVT      5
+
+/* AVRC_BROWSE_CONG_IND_EVT event indicates that AVCTP browse channel is congested and cannot send
+ * any more messages. */
+#define AVRC_BROWSE_CONG_IND_EVT       6
+
+/* AVRC_BROWSE_UNCONG_IND_EVT event indicates that AVCTP browse channel is uncongested and ready to
+ * send messages. */
+#define AVRC_BROWSE_UNCONG_IND_EVT     7
+
+/* AVRC_CMD_TIMEOUT_EVT event indicates timeout waiting for AVRC command response from the peer */
+#define AVRC_CMD_TIMEOUT_EVT           8
+
+/* Supported categories */
+#define AVRC_SUPF_CT_CAT1               0x0001      /* Category 1 */
+#define AVRC_SUPF_CT_CAT2               0x0002      /* Category 2 */
+#define AVRC_SUPF_CT_CAT3               0x0004      /* Category 3 */
+#define AVRC_SUPF_CT_CAT4               0x0008      /* Category 4 */
+#define AVRC_SUPF_CT_APP_SETTINGS       0x0010      /* Player Application Settings */
+#define AVRC_SUPF_CT_GROUP_NAVI         0x0020      /* Group Navigation */
+#define AVRC_SUPF_CT_BROWSE             0x0040      /* Browsing */
+#define AVRC_SUPF_CT_COVER_ART_GET_IMAGE_PROP   0x0080  /* Cover Art, get image property */
+#define AVRC_SUPF_CT_COVER_ART_GET_IMAGE        0x0100  /* Cover Art, get image */
+#define AVRC_SUPF_CT_COVER_ART_GET_THUMBNAIL    0x0200  /* Cover Art, get Linked Thumbnail */
+
+#define AVRC_SUPF_TG_CAT1               0x0001      /* Category 1 */
+#define AVRC_SUPF_TG_CAT2               0x0002      /* Category 2 */
+#define AVRC_SUPF_TG_CAT3               0x0004      /* Category 3 */
+#define AVRC_SUPF_TG_CAT4               0x0008      /* Category 4 */
+#define AVRC_SUPF_TG_APP_SETTINGS       0x0010      /* Player Application Settings */
+#define AVRC_SUPF_TG_GROUP_NAVI         0x0020      /* Group Navigation */
+#define AVRC_SUPF_TG_BROWSE             0x0040      /* Browsing */
+#define AVRC_SUPF_TG_MULTI_PLAYER       0x0080      /* Muliple Media Player */
+#define AVRC_SUPF_TG_PLAYER_COVER_ART   0x0100      /* Cover Art */
+
+#define AVRC_META_SUCCESS               AVRC_SUCCESS
+#define AVRC_META_FAIL                  AVRC_FAIL
+#define AVRC_METADATA_CMD               0x0000
+#define AVRC_METADATA_RESP              0x0001
+
+
+
+/*****************************************************************************
+**  data type definitions
+*****************************************************************************/
+
+/* This data type is used in AVRC_FindService() to initialize the SDP database
+ * to hold the result service search. */
+typedef struct
+{
+    UINT32              db_len;  /* Length, in bytes, of the discovery database */
+    tSDP_DISCOVERY_DB  *p_db;    /* Pointer to the discovery database */
+    UINT16              num_attr;/* The number of attributes in p_attrs */
+    UINT16             *p_attrs; /* The attributes filter. If NULL, AVRCP API sets the attribute filter
+                                  * to be ATTR_ID_SERVICE_CLASS_ID_LIST, ATTR_ID_BT_PROFILE_DESC_LIST,
+                                  * ATTR_ID_SUPPORTED_FEATURES, ATTR_ID_SERVICE_NAME and ATTR_ID_PROVIDER_NAME.
+                                  * If not NULL, the input is taken as the filter. */
+} tAVRC_SDP_DB_PARAMS;
+
+/* This callback function returns service discovery information to the
+ * application after the AVRC_FindService() API function is called.  The
+ * implementation of this callback function must copy the p_service_name
+ * and p_provider_name parameters passed to it as they are not guaranteed
+ * to remain after the callback function exits. */
+typedef void (tAVRC_FIND_CBACK) (UINT16 status);
+
+
+/* This is the control callback function.  This function passes events
+ * listed in Table 20 to the application. */
+typedef void (tAVRC_CTRL_CBACK) (UINT8 handle, UINT8 event, UINT16 result,
+             BD_ADDR peer_addr);
+
+
+/* This is the message callback function.  It is executed when AVCTP has
+ * a message packet ready for the application.  The implementation of this
+ * callback function must copy the tAVRC_MSG structure passed to it as it
+ * is not guaranteed to remain after the callback function exits. */
+typedef void (tAVRC_MSG_CBACK) (UINT8 handle, UINT8 label, UINT8 opcode,
+             tAVRC_MSG *p_msg);
+
+typedef struct
+{
+    tAVRC_CTRL_CBACK    *p_ctrl_cback;  /* pointer to application control callback */
+    tAVRC_MSG_CBACK     *p_msg_cback;   /* pointer to application message callback */
+    UINT32              company_id;     /* the company ID  */
+    UINT8               conn;           /* Connection role (Initiator/acceptor) */
+    UINT8               control;        /* Control role (Control/Target) */
+} tAVRC_CONN_CB;
+
+
+
+/*****************************************************************************
+**  external function declarations
+*****************************************************************************/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+/******************************************************************************
+**
+** Function         AVRC_AddRecord
+**
+** Description      This function is called to build an AVRCP SDP record.
+**                  Prior to calling this function the application must
+**                  call SDP_CreateRecord() to create an SDP record.
+**
+**                  Input Parameters:
+**                      service_uuid:  Indicates TG(UUID_SERVCLASS_AV_REM_CTRL_TARGET)
+**                                            or CT(UUID_SERVCLASS_AV_REMOTE_CONTROL)
+**
+**                      p_service_name:  Pointer to a null-terminated character
+**                      string containing the service name.
+**                      If service name is not used set this to NULL.
+**
+**                      p_provider_name:  Pointer to a null-terminated character
+**                      string containing the provider name.
+**                      If provider name is not used set this to NULL.
+**
+**                      categories:  Supported categories.
+**
+**                      sdp_handle:  SDP handle returned by SDP_CreateRecord().
+**
+**                  Output Parameters:
+**                      None.
+**
+** Returns          AVRC_SUCCESS if successful.
+**                  AVRC_NO_RESOURCES if not enough resources to build the SDP record.
+**
+******************************************************************************/
+extern UINT16 AVRC_AddRecord(UINT16 service_uuid, char *p_service_name,
+                char *p_provider_name, UINT16 categories, UINT32 sdp_handle,
+                BOOLEAN browse_supported, UINT16 profile_version);
+
+/******************************************************************************
+**
+** Function         AVRC_FindService
+**
+** Description      This function is called by the application to perform service
+**                  discovery and retrieve AVRCP SDP record information from a
+**                  peer device.  Information is returned for the first service
+**                  record found on the server that matches the service UUID.
+**                  The callback function will be executed when service discovery
+**                  is complete.  There can only be one outstanding call to
+**                  AVRC_FindService() at a time; the application must wait for
+**                  the callback before it makes another call to the function.
+**                  The application is responsible for allocating memory for the
+**                  discovery database.  It is recommended that the size of the
+**                  discovery database be at least 300 bytes.  The application
+**                  can deallocate the memory after the callback function has
+**                  executed.
+**
+**                  Input Parameters:
+**                      service_uuid: Indicates TG(UUID_SERVCLASS_AV_REM_CTRL_TARGET)
+**                                           or CT(UUID_SERVCLASS_AV_REMOTE_CONTROL)
+**
+**                      bd_addr:  BD address of the peer device.
+**
+**                      p_db:  SDP discovery database parameters.
+**
+**                      p_cback:  Pointer to the callback function.
+**
+**                  Output Parameters:
+**                      None.
+**
+** Returns          AVRC_SUCCESS if successful.
+**                  AVRC_BAD_PARAMS if discovery database parameters are invalid.
+**                  AVRC_NO_RESOURCES if there are not enough resources to
+**                                    perform the service search.
+**
+******************************************************************************/
+extern UINT16 AVRC_FindService(UINT16 service_uuid, BD_ADDR bd_addr,
+                               tAVRC_SDP_DB_PARAMS *p_db, tAVRC_FIND_CBACK *p_cback);
+
+/******************************************************************************
+**
+** Function         AVRC_Open
+**
+** Description      This function is called to open a connection to AVCTP.
+**                  The connection can be either an initiator or acceptor, as
+**                  determined by the p_ccb->stream parameter.
+**                  The connection can be a target, a controller or for both role,
+**                  as determined by the p_ccb->control parameter.
+**                  By definition, a target connection is an acceptor connection
+**                  that waits for an incoming AVCTP connection from the peer.
+**                  The connection remains available to the application until
+**                  the application closes it by calling AVRC_Close().  The
+**                  application does not need to reopen the connection after an
+**                  AVRC_CLOSE_IND_EVT is received.
+**
+**                  Input Parameters:
+**                      p_ccb->company_id: Company Identifier.
+**
+**                      p_ccb->p_ctrl_cback:  Pointer to control callback function.
+**
+**                      p_ccb->p_msg_cback:  Pointer to message callback function.
+**
+**                      p_ccb->conn: AVCTP connection role.  This is set to
+**                      AVCTP_INT for initiator connections and AVCTP_ACP
+**                      for acceptor connections.
+**
+**                      p_ccb->control: Control role.  This is set to
+**                      AVRC_CT_TARGET for target connections, AVRC_CT_CONTROL
+**                      for control connections or (AVRC_CT_TARGET|AVRC_CT_CONTROL)
+**                      for connections that support both roles.
+**
+**                      peer_addr: BD address of peer device.  This value is
+**                      only used for initiator connections; for acceptor
+**                      connections it can be set to NULL.
+**
+**                  Output Parameters:
+**                      p_handle: Pointer to handle.  This parameter is only
+**                                valid if AVRC_SUCCESS is returned.
+**
+** Returns          AVRC_SUCCESS if successful.
+**                  AVRC_NO_RESOURCES if there are not enough resources to open
+**                  the connection.
+**
+******************************************************************************/
+extern UINT16 AVRC_Open(UINT8 *p_handle, tAVRC_CONN_CB *p_ccb,
+                        BD_ADDR_PTR peer_addr);
+
+/******************************************************************************
+**
+** Function         AVRC_Close
+**
+** Description      Close a connection opened with AVRC_Open().
+**                  This function is called when the
+**                  application is no longer using a connection.
+**
+**                  Input Parameters:
+**                      handle: Handle of this connection.
+**
+**                  Output Parameters:
+**                      None.
+**
+** Returns          AVRC_SUCCESS if successful.
+**                  AVRC_BAD_HANDLE if handle is invalid.
+**
+******************************************************************************/
+extern UINT16 AVRC_Close(UINT8 handle);
+
+/******************************************************************************
+**
+** Function         AVRC_OpenBrowse
+**
+** Description      This function is called to open a browsing connection to AVCTP.
+**                  The connection can be either an initiator or acceptor, as
+**                  determined by the conn_role.
+**                  The handle is returned by a previous call to AVRC_Open.
+**
+** Returns          AVRC_SUCCESS if successful.
+**                  AVRC_NO_RESOURCES if there are not enough resources to open
+**                  the connection.
+**
+******************************************************************************/
+extern UINT16 AVRC_OpenBrowse(UINT8 handle, UINT8 conn_role);
+
+/******************************************************************************
+**
+** Function         AVRC_CloseBrowse
+**
+** Description      Close a connection opened with AVRC_OpenBrowse().
+**                  This function is called when the
+**                  application is no longer using a connection.
+**
+** Returns          AVRC_SUCCESS if successful.
+**                  AVRC_BAD_HANDLE if handle is invalid.
+**
+******************************************************************************/
+extern UINT16 AVRC_CloseBrowse(UINT8 handle);
+
+/******************************************************************************
+**
+** Function         AVRC_MsgReq
+**
+** Description      This function is used to send the AVRCP byte stream in p_pkt
+**                  down to AVCTP.
+**
+**                  It is expected that p_pkt->offset is at least AVCT_MSG_OFFSET
+**                  p_pkt->layer_specific is AVCT_DATA_CTRL or AVCT_DATA_BROWSE
+**                  p_pkt->event is AVRC_OP_VENDOR, AVRC_OP_PASS_THRU or AVRC_OP_BROWSING
+**                  The above BT_HDR settings are set by the AVRC_Bld* functions.
+**
+** Returns          AVRC_SUCCESS if successful.
+**                  AVRC_BAD_HANDLE if handle is invalid.
+**
+******************************************************************************/
+extern UINT16 AVRC_MsgReq (UINT8 handle, UINT8 label, UINT8 ctype, BT_HDR *p_pkt);
+
+/******************************************************************************
+**
+** Function         AVRC_UnitCmd
+**
+** Description      Send a UNIT INFO command to the peer device.  This
+**                  function can only be called for controller role connections.
+**                  Any response message from the peer is passed back through
+**                  the tAVRC_MSG_CBACK callback function.
+**
+**                  Input Parameters:
+**                      handle: Handle of this connection.
+**
+**                      label: Transaction label.
+**
+**                  Output Parameters:
+**                      None.
+**
+** Returns          AVRC_SUCCESS if successful.
+**                  AVRC_BAD_HANDLE if handle is invalid.
+**
+******************************************************************************/
+extern UINT16 AVRC_UnitCmd(UINT8 handle, UINT8 label);
+
+/******************************************************************************
+**
+** Function         AVRC_SubCmd
+**
+** Description      Send a SUBUNIT INFO command to the peer device.  This
+**                  function can only be called for controller role connections.
+**                  Any response message from the peer is passed back through
+**                  the tAVRC_MSG_CBACK callback function.
+**
+**                  Input Parameters:
+**                      handle: Handle of this connection.
+**
+**                      label: Transaction label.
+**
+**                      page: Specifies which part of the subunit type table
+**                      is requested.  For AVRCP it is typically zero.
+**                      Value range is 0-7.
+**
+**                  Output Parameters:
+**                      None.
+**
+** Returns          AVRC_SUCCESS if successful.
+**                  AVRC_BAD_HANDLE if handle is invalid.
+**
+******************************************************************************/
+extern UINT16 AVRC_SubCmd(UINT8 handle, UINT8 label, UINT8 page);
+
+
+/******************************************************************************
+**
+** Function         AVRC_PassCmd
+**
+** Description      Send a PASS THROUGH command to the peer device.  This
+**                  function can only be called for controller role connections.
+**                  Any response message from the peer is passed back through
+**                  the tAVRC_MSG_CBACK callback function.
+**
+**                  Input Parameters:
+**                      handle: Handle of this connection.
+**
+**                      label: Transaction label.
+**
+**                      p_msg: Pointer to PASS THROUGH message structure.
+**
+**                  Output Parameters:
+**                      None.
+**
+** Returns          AVRC_SUCCESS if successful.
+**                  AVRC_BAD_HANDLE if handle is invalid.
+**
+******************************************************************************/
+extern UINT16 AVRC_PassCmd(UINT8 handle, UINT8 label, tAVRC_MSG_PASS *p_msg);
+
+/******************************************************************************
+**
+** Function         AVRC_PassRsp
+**
+** Description      Send a PASS THROUGH response to the peer device.  This
+**                  function can only be called for target role connections.
+**                  This function must be called when a PASS THROUGH command
+**                  message is received from the peer through the
+**                  tAVRC_MSG_CBACK callback function.
+**
+**                  Input Parameters:
+**                      handle: Handle of this connection.
+**
+**                      label: Transaction label.  Must be the same value as
+**                      passed with the command message in the callback function.
+**
+**                      p_msg: Pointer to PASS THROUGH message structure.
+**
+**                  Output Parameters:
+**                      None.
+**
+** Returns          AVRC_SUCCESS if successful.
+**                  AVRC_BAD_HANDLE if handle is invalid.
+**
+******************************************************************************/
+extern UINT16 AVRC_PassRsp(UINT8 handle, UINT8 label, tAVRC_MSG_PASS *p_msg);
+
+
+/******************************************************************************
+**
+** Function         AVRC_VendorCmd
+**
+** Description      Send a VENDOR DEPENDENT command to the peer device.  This
+**                  function can only be called for controller role connections.
+**                  Any response message from the peer is passed back through
+**                  the tAVRC_MSG_CBACK callback function.
+**
+**                  Input Parameters:
+**                      handle: Handle of this connection.
+**
+**                      label: Transaction label.
+**
+**                      p_msg: Pointer to VENDOR DEPENDENT message structure.
+**
+**                  Output Parameters:
+**                      None.
+**
+** Returns          AVRC_SUCCESS if successful.
+**                  AVRC_BAD_HANDLE if handle is invalid.
+**
+******************************************************************************/
+extern UINT16 AVRC_VendorCmd(UINT8  handle, UINT8  label, tAVRC_MSG_VENDOR *p_msg);
+
+
+/******************************************************************************
+**
+** Function         AVRC_VendorRsp
+**
+** Description      Send a VENDOR DEPENDENT response to the peer device.  This
+**                  function can only be called for target role connections.
+**                  This function must be called when a VENDOR DEPENDENT
+**                  command message is received from the peer through the
+**                  tAVRC_MSG_CBACK callback function.
+**
+**                  Input Parameters:
+**                      handle: Handle of this connection.
+**
+**                      label: Transaction label.  Must be the same value as
+**                      passed with the command message in the callback function.
+**
+**                      p_msg: Pointer to VENDOR DEPENDENT message structure.
+**
+**                  Output Parameters:
+**                      None.
+**
+** Returns          AVRC_SUCCESS if successful.
+**                  AVRC_BAD_HANDLE if handle is invalid.
+**
+******************************************************************************/
+extern UINT16 AVRC_VendorRsp(UINT8  handle, UINT8  label, tAVRC_MSG_VENDOR *p_msg);
+
+
+/******************************************************************************
+**
+** Function         AVRC_SetTraceLevel
+**
+** Description      Sets the trace level for AVRC. If 0xff is passed, the
+**                  current trace level is returned.
+**
+**                  Input Parameters:
+**                      new_level:  The level to set the AVRC tracing to:
+**                      0xff-returns the current setting.
+**                      0-turns off tracing.
+**                      >= 1-Errors.
+**                      >= 2-Warnings.
+**                      >= 3-APIs.
+**                      >= 4-Events.
+**                      >= 5-Debug.
+**
+** Returns          The new trace level or current trace level if
+**                  the input parameter is 0xff.
+**
+******************************************************************************/
+extern UINT8 AVRC_SetTraceLevel (UINT8 new_level);
+
+/*******************************************************************************
+**
+** Function         AVRC_Init
+**
+** Description      This function is called at stack startup to allocate the
+**                  control block (if using dynamic memory), and initializes the
+**                  control block and tracing level.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void AVRC_Init(void);
+
+/*******************************************************************************
+**
+** Function         AVRC_Ctrl_ParsCommand
+**
+** Description      This function is used to parse cmds received for CTRL
+**                  Currently it is for SetAbsVolume and Volume Change Notification..
+**
+** Returns          AVRC_STS_NO_ERROR, if the message in p_data is parsed successfully.
+**                  Otherwise, the error code defined by AVRCP 1.4
+**
+*******************************************************************************/
+extern tAVRC_STS AVRC_Ctrl_ParsCommand (tAVRC_MSG *p_msg, tAVRC_COMMAND *p_result);
+
+/*******************************************************************************
+**
+** Function         AVRC_ParsCommand
+**
+** Description      This function is used to parse the received command.
+**
+** Returns          AVRC_STS_NO_ERROR, if the message in p_data is parsed successfully.
+**                  Otherwise, the error code defined by AVRCP 1.4
+**
+*******************************************************************************/
+extern tAVRC_STS AVRC_ParsCommand (tAVRC_MSG *p_msg, tAVRC_COMMAND *p_result,
+                                   UINT8 *p_buf, UINT16 buf_len);
+
+/*******************************************************************************
+**
+** Function         AVRC_ParsResponse
+**
+** Description      This function is used to parse the received response.
+**
+** Returns          AVRC_STS_NO_ERROR, if the message in p_data is parsed successfully.
+**                  Otherwise, the error code defined by AVRCP 1.4
+**
+*******************************************************************************/
+extern tAVRC_STS AVRC_ParsResponse (tAVRC_MSG *p_msg, tAVRC_RESPONSE *p_result,
+                                    UINT8 *p_buf, UINT16 buf_len);
+
+/*******************************************************************************
+**
+** Function         AVRC_Ctrl_ParsResponse
+**
+** Description      This function is a parse response for AVRCP Controller.
+**
+** Returns          AVRC_STS_NO_ERROR, if the message in p_data is parsed successfully.
+**                  Otherwise, the error code defined by AVRCP 1.4
+**
+*******************************************************************************/
+extern tAVRC_STS AVRC_Ctrl_ParsResponse (tAVRC_MSG *p_msg, tAVRC_RESPONSE *p_result,
+   UINT8 *p_buf, UINT16* buf_len);
+
+/*******************************************************************************
+**
+** Function         AVRC_BldCommand
+**
+** Description      This function builds the given AVRCP command to the given
+**                  GKI buffer
+**
+** Returns          AVRC_STS_NO_ERROR, if the command is built successfully
+**                  Otherwise, the error code.
+**
+*******************************************************************************/
+extern tAVRC_STS AVRC_BldCommand( tAVRC_COMMAND *p_cmd, BT_HDR **pp_pkt);
+
+/*******************************************************************************
+**
+** Function         AVRC_BldResponse
+**
+** Description      This function builds the given AVRCP response to the given
+**                  GKI buffer
+**
+** Returns          AVRC_STS_NO_ERROR, if the response is built successfully
+**                  Otherwise, the error code.
+**
+*******************************************************************************/
+extern tAVRC_STS AVRC_BldResponse( UINT8 handle, tAVRC_RESPONSE *p_rsp, BT_HDR **pp_pkt);
+
+/**************************************************************************
+**
+** Function         AVRC_IsValidAvcType
+**
+** Description      Check if correct AVC type is specified
+**
+** Returns          returns TRUE if it is valid
+**
+**
+*******************************************************************************/
+extern BOOLEAN AVRC_IsValidAvcType(UINT8 pdu_id, UINT8 avc_type);
+
+/*******************************************************************************
+**
+** Function         AVRC_IsValidPlayerAttr
+**
+** Description      Check if the given attrib value is a valid one
+**
+**
+** Returns          returns TRUE if it is valid
+**
+*******************************************************************************/
+extern BOOLEAN AVRC_IsValidPlayerAttr(UINT8 attr);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* AVRC_API_H */
diff --git a/rtkbt/code/bt/stack/include/avrc_defs.h b/rtkbt/code/bt/stack/include/avrc_defs.h
new file mode 100755
index 0000000..cb6178c
--- /dev/null
+++ b/rtkbt/code/bt/stack/include/avrc_defs.h
@@ -0,0 +1,1414 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2006-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  AVRCP definition and data types
+ *
+ ******************************************************************************/
+#ifndef _AVRC_DEFS_H
+#define _AVRC_DEFS_H
+
+#include "stack/include/bt_types.h"
+
+/*****************************************************************************
+**  constants
+*****************************************************************************/
+
+/* Profile revision numbers */
+#define AVRC_REV_1_0        0x0100
+#define AVRC_REV_1_3        0x0103
+#define AVRC_REV_1_4        0x0104
+
+#define AVRC_PACKET_LEN             512 /* Per the spec, you must support 512 byte RC packets */
+
+#define AVRC_MIN_CONTROL_MTU        48  /* Per the spec, minimum MTU for the control channel */
+#define AVRC_MIN_BROWSE_MTU         335 /* Per the spec, minimum MTU for the browsing channel */
+
+#define AVRC_META_PDU_OFFSET        4
+#define AVRC_SUB_TYPE_LEN           4
+#define AVRC_UID_SIZE               8
+#define AVRC_FEATURE_MASK_SIZE      16
+
+/* command type codes */
+#define AVRC_CMD_CTRL       0   /* Instruct a target to perform an operation */
+#define AVRC_CMD_STATUS     1   /* Check a device’s current status */
+#define AVRC_CMD_SPEC_INQ   2   /* Check whether a target supports a particular
+                                   control command; all operands are included */
+#define AVRC_CMD_NOTIF      3   /* Used for receiving notification of a change in a device’s state */
+#define AVRC_CMD_GEN_INQ    4   /* Check whether a target supports a particular
+                                   control command; operands are not included */
+
+/* response type codes */
+#define AVRC_RSP_NOT_IMPL   8   /* The target does not implement the command specified
+                                   by the opcode and operand,
+                                   or doesn’t implement the specified subunit */
+#define AVRC_RSP_ACCEPT     9   /* The target executed or is executing the command */
+#define AVRC_RSP_REJ        10  /* The target implements the command specified by the
+                                   opcode but cannot respond because the current state
+                                   of the target doesn’t allow it */
+#define AVRC_RSP_IN_TRANS   11  /* The target implements the status command but it is
+                                   in a state of transition; the status command may
+                                   be retried at a future time */
+#define AVRC_RSP_IMPL_STBL  12  /* For specific inquiry or general inquiy commands,
+                                   the target implements the command; for status
+                                   commands, the target returns stable and includes
+                                   the status results */
+#define AVRC_RSP_CHANGED    13  /* The response frame contains a notification that the
+                                   target device’s state has changed */
+#define AVRC_RSP_INTERIM    15  /* For control commands, the target has accepted the
+                                   request but cannot return information within 100
+                                   milliseconds; for notify commands, the target accepted
+                                   the command, and will notify the controller of a change
+                                   of target state at a future time */
+
+/* subunit type */
+#define AVRC_SUB_MONITOR    0x00    /* Monitor */
+#define AVRC_SUB_AUDIO      0x01    /* Audio */
+#define AVRC_SUB_PRINTER    0x02    /* Printer */
+#define AVRC_SUB_DISC       0x03    /* Disc */
+#define AVRC_SUB_TAPE       0x04    /* Tape recorder/player */
+#define AVRC_SUB_TUNER      0x05    /* Tuner */
+#define AVRC_SUB_CA         0x06    /* CA */
+#define AVRC_SUB_CAMERA     0x07    /* Camera */
+#define AVRC_SUB_PANEL      0x09    /* Panel */
+#define AVRC_SUB_BB         0x0A    /* Bulletin Board */
+#define AVRC_SUB_CAM_STOR   0x0B    /* Camera Storage */
+#define AVRC_SUB_VENDOR     0x1C    /* Vendor unique */
+#define AVRC_SUB_EXT        0x1E    /* Subunit type extended to next byte */
+#define AVRC_SUB_UNIT       0x1F    /* Unit */
+
+/* opcodes - defined by 1394ta */
+#define AVRC_OP_UNIT_INFO   0x30    /* Report unit information */
+#define AVRC_OP_SUB_INFO    0x31    /* Report subunit information */
+#define AVRC_OP_VENDOR      0x00    /* Vendor-dependent commands */
+#define AVRC_OP_PASS_THRU   0x7C    /* panel subunit opcode */
+/* opcodes 80-9F and E0-FF are not used by 1394ta.Sneak one for the browsing channel */
+#define AVRC_OP_BROWSE      0xFF    /* Browsing */
+#define AVRC_OP_INVALID     0xFE    /* invalid one */
+
+/* Company ID's
+*/
+#define AVRC_CO_BLUETOOTH_SIG   0x00FFFFFF
+#define AVRC_CO_WIDCOMM         0x00000361
+#define AVRC_CO_BROADCOM        0x00001018
+#define AVRC_CO_METADATA        0x00001958  /* Unique COMPANY ID for Metadata messages */
+
+/* State flag for Passthrough commands
+*/
+#define AVRC_STATE_PRESS    0
+#define AVRC_STATE_RELEASE  1
+
+/* Operation ID list for Passthrough commands
+*/
+#define AVRC_ID_SELECT      0x00    /* select */
+#define AVRC_ID_UP          0x01    /* up */
+#define AVRC_ID_DOWN        0x02    /* down */
+#define AVRC_ID_LEFT        0x03    /* left */
+#define AVRC_ID_RIGHT       0x04    /* right */
+#define AVRC_ID_RIGHT_UP    0x05    /* right-up */
+#define AVRC_ID_RIGHT_DOWN  0x06    /* right-down */
+#define AVRC_ID_LEFT_UP     0x07    /* left-up */
+#define AVRC_ID_LEFT_DOWN   0x08    /* left-down */
+#define AVRC_ID_ROOT_MENU   0x09    /* root menu */
+#define AVRC_ID_SETUP_MENU  0x0A    /* setup menu */
+#define AVRC_ID_CONT_MENU   0x0B    /* contents menu */
+#define AVRC_ID_FAV_MENU    0x0C    /* favorite menu */
+#define AVRC_ID_EXIT        0x0D    /* exit */
+#define AVRC_ID_0           0x20    /* 0 */
+#define AVRC_ID_1           0x21    /* 1 */
+#define AVRC_ID_2           0x22    /* 2 */
+#define AVRC_ID_3           0x23    /* 3 */
+#define AVRC_ID_4           0x24    /* 4 */
+#define AVRC_ID_5           0x25    /* 5 */
+#define AVRC_ID_6           0x26    /* 6 */
+#define AVRC_ID_7           0x27    /* 7 */
+#define AVRC_ID_8           0x28    /* 8 */
+#define AVRC_ID_9           0x29    /* 9 */
+#define AVRC_ID_DOT         0x2A    /* dot */
+#define AVRC_ID_ENTER       0x2B    /* enter */
+#define AVRC_ID_CLEAR       0x2C    /* clear */
+#define AVRC_ID_CHAN_UP     0x30    /* channel up */
+#define AVRC_ID_CHAN_DOWN   0x31    /* channel down */
+#define AVRC_ID_PREV_CHAN   0x32    /* previous channel */
+#define AVRC_ID_SOUND_SEL   0x33    /* sound select */
+#define AVRC_ID_INPUT_SEL   0x34    /* input select */
+#define AVRC_ID_DISP_INFO   0x35    /* display information */
+#define AVRC_ID_HELP        0x36    /* help */
+#define AVRC_ID_PAGE_UP     0x37    /* page up */
+#define AVRC_ID_PAGE_DOWN   0x38    /* page down */
+#define AVRC_ID_POWER       0x40    /* power */
+#define AVRC_ID_VOL_UP      0x41    /* volume up */
+#define AVRC_ID_VOL_DOWN    0x42    /* volume down */
+#define AVRC_ID_MUTE        0x43    /* mute */
+#define AVRC_ID_PLAY        0x44    /* play */
+#define AVRC_ID_STOP        0x45    /* stop */
+#define AVRC_ID_PAUSE       0x46    /* pause */
+#define AVRC_ID_RECORD      0x47    /* record */
+#define AVRC_ID_REWIND      0x48    /* rewind */
+#define AVRC_ID_FAST_FOR    0x49    /* fast forward */
+#define AVRC_ID_EJECT       0x4A    /* eject */
+#define AVRC_ID_FORWARD     0x4B    /* forward */
+#define AVRC_ID_BACKWARD    0x4C    /* backward */
+#define AVRC_ID_ANGLE       0x50    /* angle */
+#define AVRC_ID_SUBPICT     0x51    /* subpicture */
+#define AVRC_ID_F1          0x71    /* F1 */
+#define AVRC_ID_F2          0x72    /* F2 */
+#define AVRC_ID_F3          0x73    /* F3 */
+#define AVRC_ID_F4          0x74    /* F4 */
+#define AVRC_ID_F5          0x75    /* F5 */
+#define AVRC_ID_VENDOR      0x7E    /* vendor unique */
+#define AVRC_KEYPRESSED_RELEASE 0x80
+
+/*****************************************************************************
+**  Metadata transfer definitions
+*****************************************************************************/
+
+/* Define the Metadata Packet types
+*/
+#define AVRC_PKT_SINGLE           0
+#define AVRC_PKT_START            1
+#define AVRC_PKT_CONTINUE         2
+#define AVRC_PKT_END              3
+#define AVRC_PKT_TYPE_MASK        3
+
+/* Define the PDUs carried in the vendor dependant data
+*/
+#define AVRC_PDU_GET_CAPABILITIES               0x10
+#define AVRC_PDU_LIST_PLAYER_APP_ATTR           0x11
+#define AVRC_PDU_LIST_PLAYER_APP_VALUES         0x12
+#define AVRC_PDU_GET_CUR_PLAYER_APP_VALUE       0x13
+#define AVRC_PDU_SET_PLAYER_APP_VALUE           0x14
+#define AVRC_PDU_GET_PLAYER_APP_ATTR_TEXT       0x15
+#define AVRC_PDU_GET_PLAYER_APP_VALUE_TEXT      0x16
+#define AVRC_PDU_INFORM_DISPLAY_CHARSET         0x17
+#define AVRC_PDU_INFORM_BATTERY_STAT_OF_CT      0x18
+#define AVRC_PDU_GET_ELEMENT_ATTR               0x20
+#define AVRC_PDU_GET_PLAY_STATUS                0x30
+#define AVRC_PDU_REGISTER_NOTIFICATION          0x31
+#define AVRC_PDU_REQUEST_CONTINUATION_RSP       0x40
+#define AVRC_PDU_ABORT_CONTINUATION_RSP         0x41
+/* added in 1.4 */
+#define AVRC_PDU_SET_ABSOLUTE_VOLUME            0x50
+#define AVRC_PDU_SET_ADDRESSED_PLAYER           0x60
+#define AVRC_PDU_SET_BROWSED_PLAYER             0x70
+#define AVRC_PDU_GET_FOLDER_ITEMS               0x71
+#define AVRC_PDU_CHANGE_PATH                    0x72
+#define AVRC_PDU_GET_ITEM_ATTRIBUTES            0x73
+#define AVRC_PDU_PLAY_ITEM                      0x74
+#define AVRC_PDU_SEARCH                         0x80
+#define AVRC_PDU_ADD_TO_NOW_PLAYING             0x90
+#define AVRC_PDU_GENERAL_REJECT                 0xA0
+
+/* Define the vendor unique id carried in the pass through data
+*/
+#define AVRC_PDU_NEXT_GROUP                     0x00
+#define AVRC_PDU_PREV_GROUP                     0x01
+/* the only pass through vendor unique commands defined by AVRC is the group navigation commands
+ * The len for vendor unique data is 5 */
+#define AVRC_PASS_THRU_GROUP_LEN                5
+
+#define AVRC_PDU_INVALID                        0xff
+/* 6.15.3 error status code for general reject */
+#define AVRC_STS_BAD_CMD        0x00    /* Invalid command, sent if TG received a PDU that it did not understand. */
+#define AVRC_STS_BAD_PARAM      0x01    /* Invalid parameter, sent if the TG received a PDU with a parameter ID that it did not understand. Sent if there is only one parameter ID in the PDU. */
+#define AVRC_STS_NOT_FOUND      0x02    /* Specified parameter not found., sent if the parameter ID is understood, but content is wrong or corrupted. */
+#define AVRC_STS_INTERNAL_ERR   0x03    /* Internal Error, sent if there are error conditions not covered by a more specific error code. */
+#define AVRC_STS_NO_ERROR       0x04    /* Operation completed without error.  This is the status that should be returned if the operation was successful. */
+#define AVRC_STS_UID_CHANGED    0x05    /* UID Changed - The UIDs on the device have changed */
+/* #define AVRC_STS_GEN_ERROR      0x06    Unknown Error - this is changed to "reserved" */
+#define AVRC_STS_BAD_DIR        0x07    /* Invalid Direction - The Direction parameter is invalid - Change Path*/
+#define AVRC_STS_NOT_DIR        0x08    /* Not a Directory - The UID provided does not refer to a folder item  Change Path*/
+#define AVRC_STS_NOT_EXIST      0x09    /* Does Not Exist - The UID provided does not refer to any item    Change Path, PlayItem, AddToNowPlaying, GetItemAttributes*/
+#define AVRC_STS_BAD_SCOPE      0x0a    /* Invalid Scope - The scope parameter is invalid  GetFolderItems, PlayItem, AddToNowPlayer, GetItemAttributes, */
+#define AVRC_STS_BAD_RANGE      0x0b    /* Range Out of Bounds - The start of range provided is not valid  GetFolderItems*/
+#define AVRC_STS_UID_IS_DIR     0x0c    /* UID is a Directory - The UID provided refers to a directory, which cannot be handled by this media player   PlayItem, AddToNowPlaying */
+#define AVRC_STS_IN_USE         0x0d    /* Media in Use - The media is not able to be used for this operation at this time PlayItem, AddToNowPlaying */
+#define AVRC_STS_NOW_LIST_FULL  0x0e    /* Now Playing List Full - No more items can be added to the Now Playing List  AddToNowPlaying*/
+#define AVRC_STS_SEARCH_NOT_SUP 0x0f    /* Search Not Supported - The Browsed Media Player does not support search Search */
+#define AVRC_STS_SEARCH_BUSY    0x10    /* Search in Progress - A search operation is already in progress  Search*/
+#define AVRC_STS_BAD_PLAYER_ID  0x11    /* Invalid Player Id - The specified Player Id does not refer to a valid player    SetAddressedPlayer, SetBrowsedPlayer*/
+#define AVRC_STS_PLAYER_N_BR    0x12    /* Player Not Browsable - The Player Id supplied refers to a Media Player which does not support browsing. SetBrowsedPlayer */
+#define AVRC_STS_PLAYER_N_ADDR  0x13    /* Player Not Addressed.  The Player Id supplied refers to a player which is not currently addressed, and the command is not able to be performed if the player is not set as addressed.   Search, SetBrowsedPlayer*/
+#define AVRC_STS_BAD_SEARCH_RES 0x14    /* No valid Search Results - The Search result list does not contain valid entries, e.g. after being invalidated due to change of browsed player   GetFolderItems */
+#define AVRC_STS_NO_AVAL_PLAYER 0x15    /* No available players ALL */
+#define AVRC_STS_ADDR_PLAYER_CHG 0x16   /* Addressed Player Changed - Register Notification */
+typedef UINT8 tAVRC_STS;
+
+/* Define the Capability IDs
+*/
+#define AVRC_CAP_COMPANY_ID                     0x02
+#define AVRC_CAP_EVENTS_SUPPORTED               0x03
+#define AVRC_COMPANY_ID_LEN                     3
+#define AVRC_CAPABILITY_OFFSET                  2
+
+/* Define the Player Application Settings IDs
+*/
+#define AVRC_PLAYER_SETTING_EQUALIZER           0x01
+#define AVRC_PLAYER_SETTING_REPEAT              0x02
+#define AVRC_PLAYER_SETTING_SHUFFLE             0x03
+#define AVRC_PLAYER_SETTING_SCAN                0x04
+#define AVRC_PLAYER_SETTING_LOW_MENU_EXT        0x80
+#define AVRC_PLAYER_SETTING_HIGH_MENU_EXT       0xff
+
+/* Define the possible values of the Player Application Settings
+*/
+#define AVRC_PLAYER_VAL_OFF                     0x01
+#define AVRC_PLAYER_VAL_ON                      0x02
+#define AVRC_PLAYER_VAL_SINGLE_REPEAT           0x02
+#define AVRC_PLAYER_VAL_ALL_REPEAT              0x03
+#define AVRC_PLAYER_VAL_GROUP_REPEAT            0x04
+#define AVRC_PLAYER_VAL_ALL_SHUFFLE             0x02
+#define AVRC_PLAYER_VAL_GROUP_SHUFFLE           0x03
+#define AVRC_PLAYER_VAL_ALL_SCAN                0x02
+#define AVRC_PLAYER_VAL_GROUP_SCAN              0x03
+
+/* Define the possible values of Battery Status PDU
+*/
+#define AVRC_BATTERY_STATUS_NORMAL              0x00
+#define AVRC_BATTERY_STATUS_WARNING             0x01
+#define AVRC_BATTERY_STATUS_CRITICAL            0x02
+#define AVRC_BATTERY_STATUS_EXTERNAL            0x03
+#define AVRC_BATTERY_STATUS_FULL_CHARGE         0x04
+typedef UINT8 tAVRC_BATTERY_STATUS;
+
+/* Define character set */
+#define AVRC_CHAR_SET_SIZE                      2
+
+/* Define the Media Attribute IDs
+*/
+#define AVRC_MEDIA_ATTR_ID_TITLE                 0x00000001
+#define AVRC_MEDIA_ATTR_ID_ARTIST                0x00000002
+#define AVRC_MEDIA_ATTR_ID_ALBUM                 0x00000003
+#define AVRC_MEDIA_ATTR_ID_TRACK_NUM             0x00000004
+#define AVRC_MEDIA_ATTR_ID_NUM_TRACKS            0x00000005
+#define AVRC_MEDIA_ATTR_ID_GENRE                 0x00000006
+#define AVRC_MEDIA_ATTR_ID_PLAYING_TIME          0x00000007        /* in miliseconds */
+#define AVRC_MAX_NUM_MEDIA_ATTR_ID               7
+
+/* Define the possible values of play state
+*/
+#define AVRC_PLAYSTATE_RESP_MSG_SIZE            9
+#define AVRC_PLAYSTATE_STOPPED                  0x00    /* Stopped */
+#define AVRC_PLAYSTATE_PLAYING                  0x01    /* Playing */
+#define AVRC_PLAYSTATE_PAUSED                   0x02    /* Paused  */
+#define AVRC_PLAYSTATE_FWD_SEEK                 0x03    /* Fwd Seek*/
+#define AVRC_PLAYSTATE_REV_SEEK                 0x04    /* Rev Seek*/
+#define AVRC_PLAYSTATE_ERROR                    0xFF    /* Error   */
+typedef UINT8 tAVRC_PLAYSTATE;
+
+/* Define the events that can be registered for notifications
+*/
+#define AVRC_EVT_PLAY_STATUS_CHANGE             0x01
+#define AVRC_EVT_TRACK_CHANGE                   0x02
+#define AVRC_EVT_TRACK_REACHED_END              0x03
+#define AVRC_EVT_TRACK_REACHED_START            0x04
+#define AVRC_EVT_PLAY_POS_CHANGED               0x05
+#define AVRC_EVT_BATTERY_STATUS_CHANGE          0x06
+#define AVRC_EVT_SYSTEM_STATUS_CHANGE           0x07
+#define AVRC_EVT_APP_SETTING_CHANGE             0x08
+/* added in AVRCP 1.4 */
+#define AVRC_EVT_NOW_PLAYING_CHANGE             0x09
+#define AVRC_EVT_AVAL_PLAYERS_CHANGE            0x0a
+#define AVRC_EVT_ADDR_PLAYER_CHANGE             0x0b
+#define AVRC_EVT_UIDS_CHANGE                    0x0c
+#define AVRC_EVT_VOLUME_CHANGE                  0x0d
+
+/* the number of events that can be registered for notifications */
+#define AVRC_NUM_NOTIF_EVENTS                   0x0d
+
+#define AVRC_EVT_MSG_LEN_1                      0x01
+#define AVRC_EVT_MSG_LEN_2                      0x02
+#define AVRC_EVT_MSG_LEN_5                      0x05
+#define AVRC_EVT_MSG_LEN_9                      0x09
+
+#define AVRC_MAX_VOLUME                         0x7F
+
+/* Define the possible values of system status
+*/
+#define AVRC_SYSTEMSTATE_PWR_ON                 0x00
+#define AVRC_SYSTEMSTATE_PWR_OFF                0x01
+#define AVRC_SYSTEMSTATE_PWR_UNPLUGGED          0x02
+typedef UINT8 tAVRC_SYSTEMSTATE;
+
+/* the frequently used character set ids */
+#define AVRC_CHARSET_ID_ASCII                  ((UINT16) 0x0003) /* ASCII */
+#define AVRC_CHARSET_ID_UTF8                   ((UINT16) 0x006a) /* UTF-8 */
+#define AVRC_CHARSET_ID_UTF16                  ((UINT16) 0x03f7) /* 1015 */
+#define AVRC_CHARSET_ID_UTF32                  ((UINT16) 0x03f9) /* 1017 */
+
+/*****************************************************************************
+**  Advanced Control
+*****************************************************************************/
+#define AVRC_ITEM_PLAYER            0x01
+#define AVRC_ITEM_FOLDER            0x02
+#define AVRC_ITEM_MEDIA             0x03
+
+#define AVRC_SCOPE_PLAYER_LIST      0x00  /* Media Player Item - Contains all available media players */
+#define AVRC_SCOPE_FILE_SYSTEM      0x01  /* Folder Item, Media Element Item
+                                             - The virtual filesystem containing the media content of the browsed player */
+#define AVRC_SCOPE_SEARCH           0x02  /* Media Element Item  The results of a search operation on the browsed player */
+#define AVRC_SCOPE_NOW_PLAYING      0x03  /* Media Element Item  The Now Playing list (or queue) of the addressed player */
+
+#define AVRC_FOLDER_ITEM_COUNT_NONE 0xFF
+
+/* folder type */
+#define AVRC_FOLDER_TYPE_MIXED      0x00
+#define AVRC_FOLDER_TYPE_TITLES     0x01
+#define AVRC_FOLDER_TYPE_ALNUMS     0x02
+#define AVRC_FOLDER_TYPE_ARTISTS    0x03
+#define AVRC_FOLDER_TYPE_GENRES     0x04
+#define AVRC_FOLDER_TYPE_PLAYLISTS  0x05
+#define AVRC_FOLDER_TYPE_YEARS      0x06
+
+/* major player type */
+#define AVRC_MJ_TYPE_AUDIO          0x01  /* Audio */
+#define AVRC_MJ_TYPE_VIDEO          0x02  /* Video */
+#define AVRC_MJ_TYPE_BC_AUDIO       0x04  /* Broadcasting Audio */
+#define AVRC_MJ_TYPE_BC_VIDEO       0x08  /* Broadcasting Video */
+#define AVRC_MJ_TYPE_INVALID        0xF0
+
+/* player sub type */
+#define AVRC_SUB_TYPE_NONE          0x00
+#define AVRC_SUB_TYPE_AUDIO_BOOK    0x01  /* Audio Book */
+#define AVRC_SUB_TYPE_PODCAST       0x02  /* Podcast */
+#define AVRC_SUB_TYPE_INVALID       0xFC
+
+/* media item - media type */
+#define AVRC_MEDIA_TYPE_AUDIO       0x00
+#define AVRC_MEDIA_TYPE_VIDEO       0x01
+
+#define AVRC_DIR_UP                 0x00  /* Folder Up */
+#define AVRC_DIR_DOWN               0x01  /* Folder Down */
+
+#define AVRC_UID_SIZE               8
+typedef UINT8 tAVRC_UID[AVRC_UID_SIZE];
+
+/*****************************************************************************
+**  player attribute - supported features
+*****************************************************************************/
+#define AVRC_PF_SELECT_BIT_NO           0
+#define AVRC_PF_SELECT_MASK             0x01
+#define AVRC_PF_SELECT_OFF              0
+#define AVRC_PF_SELECT_SUPPORTED(x)     ((x)[AVRC_PF_SELECT_OFF] & AVRC_PF_SELECT_MASK)
+
+#define AVRC_PF_UP_BIT_NO               1
+#define AVRC_PF_UP_MASK                 0x02
+#define AVRC_PF_UP_OFF                  0
+#define AVRC_PF_UP_SUPPORTED(x)         ((x)[AVRC_PF_UP_OFF] & AVRC_PF_UP_MASK)
+
+#define AVRC_PF_DOWN_BIT_NO             2
+#define AVRC_PF_DOWN_MASK               0x04
+#define AVRC_PF_DOWN_OFF                0
+#define AVRC_PF_DOWN_SUPPORTED(x)       ((x)[AVRC_PF_DOWN_OFF] & AVRC_PF_DOWN_MASK)
+
+#define AVRC_PF_LEFT_BIT_NO             3
+#define AVRC_PF_LEFT_MASK               0x08
+#define AVRC_PF_LEFT_OFF                0
+#define AVRC_PF_LEFT_SUPPORTED(x)       ((x)[AVRC_PF_LEFT_OFF] & AVRC_PF_LEFT_MASK)
+
+#define AVRC_PF_RIGHT_BIT_NO            4
+#define AVRC_PF_RIGHT_MASK              0x10
+#define AVRC_PF_RIGHT_OFF               0
+#define AVRC_PF_RIGHT_SUPPORTED(x)      ((x)[AVRC_PF_RIGHT_OFF] & AVRC_PF_RIGHT_MASK)
+
+#define AVRC_PF_RIGHTUP_BIT_NO          5
+#define AVRC_PF_RIGHTUP_MASK            0x20
+#define AVRC_PF_RIGHTUP_OFF             0
+#define AVRC_PF_RIGHTUP_SUPPORTED(x)    ((x)[AVRC_PF_RIGHTUP_OFF] & AVRC_PF_RIGHTUP_MASK)
+
+#define AVRC_PF_RIGHTDOWN_BIT_NO        6
+#define AVRC_PF_RIGHTDOWN_MASK          0x40
+#define AVRC_PF_RIGHTDOWN_OFF           0
+#define AVRC_PF_RIGHTDOWN_SUPPORTED(x)  ((x)[AVRC_PF_RIGHTDOWN_OFF] & AVRC_PF_RIGHTDOWN_MASK)
+
+#define AVRC_PF_LEFTUP_BIT_NO           7
+#define AVRC_PF_LEFTUP_MASK             0x80
+#define AVRC_PF_LEFTUP_OFF              0
+#define AVRC_PF_LEFTUP_SUPPORTED(x)     ((x)[AVRC_PF_LEFTUP_OFF] & AVRC_PF_LEFTUP_MASK)
+
+#define AVRC_PF_LEFTDOWN_BIT_NO         8
+#define AVRC_PF_LEFTDOWN_MASK           0x01
+#define AVRC_PF_LEFTDOWN_OFF            1
+#define AVRC_PF_LEFTDOWN_SUPPORTED(x)   ((x)[AVRC_PF_LEFTDOWN_OFF] & AVRC_PF_LEFTDOWN_MASK)
+
+#define AVRC_PF_ROOT_MENU_BIT_NO        9
+#define AVRC_PF_ROOT_MENU_MASK          0x02
+#define AVRC_PF_ROOT_MENU_OFF           1
+#define AVRC_PF_ROOT_MENU_SUPPORTED(x)  ((x)[AVRC_PF_ROOT_MENU_OFF] & AVRC_PF_ROOT_MENU_MASK)
+
+#define AVRC_PF_SETUP_MENU_BIT_NO       10
+#define AVRC_PF_SETUP_MENU_MASK         0x04
+#define AVRC_PF_SETUP_MENU_OFF          1
+#define AVRC_PF_SETUP_MENU_SUPPORTED(x) ((x)[AVRC_PF_SETUP_MENU_OFF] & AVRC_PF_SETUP_MENU_MASK)
+
+#define AVRC_PF_CONTENTS_MENU_BIT_NO    11
+#define AVRC_PF_CONTENTS_MENU_MASK      0x08
+#define AVRC_PF_CONTENTS_MENU_OFF       1
+#define AVRC_PF_CONTENTS_MENU_SUPPORTED(x)  ((x)[AVRC_PF_CONTENTS_MENU_OFF] & AVRC_PF_CONTENTS_MENU_MASK)
+
+#define AVRC_PF_FAVORITE_MENU_BIT_NO    12
+#define AVRC_PF_FAVORITE_MENU_MASK      0x10
+#define AVRC_PF_FAVORITE_MENU_OFF       1
+#define AVRC_PF_FAVORITE_MENU_SUPPORTED(x)  ((x)[AVRC_PF_FAVORITE_MENU_OFF] & AVRC_PF_FAVORITE_MENU_MASK)
+
+#define AVRC_PF_EXIT_BIT_NO             13
+#define AVRC_PF_EXIT_MASK               0x20
+#define AVRC_PF_EXIT_OFF                1
+#define AVRC_PF_EXIT_SUPPORTED(x)       ((x)[AVRC_PF_EXIT_OFF] & AVRC_PF_EXIT_MASK)
+
+#define AVRC_PF_0_BIT_NO                14
+#define AVRC_PF_0_MASK                  0x40
+#define AVRC_PF_0_OFF                   1
+#define AVRC_PF_0_SUPPORTED(x)          ((x)[AVRC_PF_0_OFF] & AVRC_PF_0_MASK)
+
+#define AVRC_PF_1_BIT_NO                15
+#define AVRC_PF_1_MASK                  0x80
+#define AVRC_PF_1_OFF                   1
+#define AVRC_PF_1_SUPPORTED(x)          ((x)[AVRC_PF_1_OFF] & AVRC_PF_1_MASK)
+
+#define AVRC_PF_2_BIT_NO                16
+#define AVRC_PF_2_MASK                  0x01
+#define AVRC_PF_2_OFF                   2
+#define AVRC_PF_2_SUPPORTED(x)          ((x)[AVRC_PF_2_OFF] & AVRC_PF_2_MASK)
+
+#define AVRC_PF_3_BIT_NO                17
+#define AVRC_PF_3_MASK                  0x02
+#define AVRC_PF_3_OFF                   2
+#define AVRC_PF_3_SUPPORTED(x)          ((x)[AVRC_PF_3_OFF] & AVRC_PF_3_MASK)
+
+#define AVRC_PF_4_BIT_NO                18
+#define AVRC_PF_4_MASK                  0x04
+#define AVRC_PF_4_OFF                   2
+#define AVRC_PF_4_SUPPORTED(x)          ((x)[AVRC_PF_4_OFF] & AVRC_PF_4_MASK)
+
+#define AVRC_PF_5_BIT_NO                19
+#define AVRC_PF_5_MASK                  0x08
+#define AVRC_PF_5_OFF                   2
+#define AVRC_PF_5_SUPPORTED(x)          ((x)[AVRC_PF_5_OFF] & AVRC_PF_5_MASK)
+
+#define AVRC_PF_6_BIT_NO                20
+#define AVRC_PF_6_MASK                  0x10
+#define AVRC_PF_6_OFF                   2
+#define AVRC_PF_6_SUPPORTED(x)          ((x)[AVRC_PF_6_OFF] & AVRC_PF_6_MASK)
+
+#define AVRC_PF_7_BIT_NO                21
+#define AVRC_PF_7_MASK                  0x20
+#define AVRC_PF_7_OFF                   2
+#define AVRC_PF_7_SUPPORTED(x)          ((x)[AVRC_PF_7_OFF] & AVRC_PF_7_MASK)
+
+#define AVRC_PF_8_BIT_NO                22
+#define AVRC_PF_8_MASK                  0x40
+#define AVRC_PF_8_OFF                   2
+#define AVRC_PF_8_SUPPORTED(x)          ((x)[AVRC_PF_8_OFF] & AVRC_PF_8_MASK)
+
+#define AVRC_PF_9_BIT_NO                23
+#define AVRC_PF_9_MASK                  0x80
+#define AVRC_PF_9_OFF                   2
+#define AVRC_PF_9_SUPPORTED(x)          ((x)[AVRC_PF_9_OFF] & AVRC_PF_9_MASK)
+
+#define AVRC_PF_DOT_BIT_NO              24
+#define AVRC_PF_DOT_MASK                0x01
+#define AVRC_PF_DOT_OFF                 3
+#define AVRC_PF_DOT_SUPPORTED(x)        ((x)[AVRC_PF_DOT_OFF] & AVRC_PF_DOT_MASK)
+
+#define AVRC_PF_ENTER_BIT_NO            25
+#define AVRC_PF_ENTER_MASK              0x02
+#define AVRC_PF_ENTER_OFF               3
+#define AVRC_PF_ENTER_SUPPORTED(x)      ((x)[AVRC_PF_ENTER_OFF] & AVRC_PF_ENTER_MASK)
+
+#define AVRC_PF_CLEAR_BIT_NO            26
+#define AVRC_PF_CLEAR_MASK              0x04
+#define AVRC_PF_CLEAR_OFF               3
+#define AVRC_PF_CLEAR_SUPPORTED(x)      ((x)[AVRC_PF_CLEAR_OFF] & AVRC_PF_CLEAR_MASK)
+
+#define AVRC_PF_CHNL_UP_BIT_NO          27
+#define AVRC_PF_CHNL_UP_MASK            0x08
+#define AVRC_PF_CHNL_UP_OFF             3
+#define AVRC_PF_CHNL_UP_SUPPORTED(x)    ((x)[AVRC_PF_CHNL_UP_OFF] & AVRC_PF_CHNL_UP_MASK)
+
+#define AVRC_PF_CHNL_DOWN_BIT_NO        28
+#define AVRC_PF_CHNL_DOWN_MASK          0x10
+#define AVRC_PF_CHNL_DOWN_OFF           3
+#define AVRC_PF_CHNL_DOWN_SUPPORTED(x)  ((x)[AVRC_PF_CHNL_DOWN_OFF] & AVRC_PF_CHNL_DOWN_MASK)
+
+#define AVRC_PF_PREV_CHNL_BIT_NO        29
+#define AVRC_PF_PREV_CHNL_MASK          0x20
+#define AVRC_PF_PREV_CHNL_OFF           3
+#define AVRC_PF_PREV_CHNL_SUPPORTED(x)  ((x)[AVRC_PF_PREV_CHNL_OFF] & AVRC_PF_PREV_CHNL_MASK)
+
+#define AVRC_PF_SOUND_SEL_BIT_NO        30
+#define AVRC_PF_SOUND_SEL_MASK          0x40
+#define AVRC_PF_SOUND_SEL_OFF           3
+#define AVRC_PF_SOUND_SEL_SUPPORTED(x)  ((x)[AVRC_PF_SOUND_SEL_OFF] & AVRC_PF_SOUND_SEL_MASK)
+
+#define AVRC_PF_INPUT_SEL_BIT_NO        31
+#define AVRC_PF_INPUT_SEL_MASK          0x80
+#define AVRC_PF_INPUT_SEL_OFF           3
+#define AVRC_PF_INPUT_SEL_SUPPORTED(x)  ((x)[AVRC_PF_INPUT_SEL_OFF] & AVRC_PF_INPUT_SEL_MASK)
+
+#define AVRC_PF_DISP_INFO_BIT_NO        32
+#define AVRC_PF_DISP_INFO_MASK          0x01
+#define AVRC_PF_DISP_INFO_OFF           4
+#define AVRC_PF_DISP_INFO_SUPPORTED(x)  ((x)[AVRC_PF_DISP_INFO_OFF] & AVRC_PF_DISP_INFO_MASK)
+
+#define AVRC_PF_HELP_BIT_NO             33
+#define AVRC_PF_HELP_MASK               0x02
+#define AVRC_PF_HELP_OFF                4
+#define AVRC_PF_HELP_SUPPORTED(x)       ((x)[AVRC_PF_HELP_OFF] & AVRC_PF_HELP_MASK)
+
+#define AVRC_PF_PAGE_UP_BIT_NO          34
+#define AVRC_PF_PAGE_UP_MASK            0x04
+#define AVRC_PF_PAGE_UP_OFF             4
+#define AVRC_PF_PAGE_UP_SUPPORTED(x)    ((x)[AVRC_PF_PAGE_UP_OFF] & AVRC_PF_PAGE_UP_MASK)
+
+#define AVRC_PF_PAGE_DOWN_BIT_NO        35
+#define AVRC_PF_PAGE_DOWN_MASK          0x08
+#define AVRC_PF_PAGE_DOWN_OFF           4
+#define AVRC_PF_PAGE_DOWN_SUPPORTED(x)  ((x)[AVRC_PF_PAGE_DOWN_OFF] & AVRC_PF_PAGE_DOWN_MASK)
+
+#define AVRC_PF_POWER_BIT_NO            36
+#define AVRC_PF_POWER_MASK              0x10
+#define AVRC_PF_POWER_OFF               4
+#define AVRC_PF_POWER_SUPPORTED(x)      ((x)[AVRC_PF_POWER_OFF] & AVRC_PF_POWER_MASK)
+
+#define AVRC_PF_VOL_UP_BIT_NO           37
+#define AVRC_PF_VOL_UP_MASK             0x20
+#define AVRC_PF_VOL_UP_OFF              4
+#define AVRC_PF_VOL_UP_SUPPORTED(x)     ((x)[AVRC_PF_VOL_UP_OFF] & AVRC_PF_VOL_UP_MASK)
+
+#define AVRC_PF_VOL_DOWN_BIT_NO         38
+#define AVRC_PF_VOL_DOWN_MASK           0x40
+#define AVRC_PF_VOL_DOWN_OFF            4
+#define AVRC_PF_VOL_DOWN_SUPPORTED(x)   ((x)[AVRC_PF_VOL_DOWN_OFF] & AVRC_PF_VOL_DOWN_MASK)
+
+#define AVRC_PF_MUTE_BIT_NO             39
+#define AVRC_PF_MUTE_MASK               0x80
+#define AVRC_PF_MUTE_OFF                4
+#define AVRC_PF_MUTE_SUPPORTED(x)       ((x)[AVRC_PF_MUTE_OFF] & AVRC_PF_MUTE_MASK)
+
+#define AVRC_PF_PLAY_BIT_NO             40
+#define AVRC_PF_PLAY_MASK               0x01
+#define AVRC_PF_PLAY_OFF                5
+#define AVRC_PF_PLAY_SUPPORTED(x)       ((x)[AVRC_PF_PLAY_OFF] & AVRC_PF_PLAY_MASK)
+
+#define AVRC_PF_STOP_BIT_NO             41
+#define AVRC_PF_STOP_MASK               0x02
+#define AVRC_PF_STOP_OFF                5
+#define AVRC_PF_STOP_SUPPORTED(x)       ((x)[AVRC_PF_STOP_OFF] & AVRC_PF_STOP_MASK)
+
+#define AVRC_PF_PAUSE_BIT_NO            42
+#define AVRC_PF_PAUSE_MASK              0x04
+#define AVRC_PF_PAUSE_OFF               5
+#define AVRC_PF_PAUSE_SUPPORTED(x)      ((x)[AVRC_PF_PAUSE_OFF] & AVRC_PF_PAUSE_MASK)
+
+#define AVRC_PF_RECORD_BIT_NO           43
+#define AVRC_PF_RECORD_MASK             0x08
+#define AVRC_PF_RECORD_OFF              5
+#define AVRC_PF_RECORD_SUPPORTED(x)     ((x)[AVRC_PF_RECORD_OFF] & AVRC_PF_RECORD_MASK)
+
+#define AVRC_PF_REWIND_BIT_NO           44
+#define AVRC_PF_REWIND_MASK             0x10
+#define AVRC_PF_REWIND_OFF              5
+#define AVRC_PF_REWIND_SUPPORTED(x)     ((x)[AVRC_PF_REWIND_OFF] & AVRC_PF_REWIND_MASK)
+
+#define AVRC_PF_FAST_FWD_BIT_NO         45
+#define AVRC_PF_FAST_FWD_MASK           0x20
+#define AVRC_PF_FAST_FWD_OFF            5
+#define AVRC_PF_FAST_FWD_SUPPORTED(x)   ((x)[AVRC_PF_FAST_FWD_OFF] & AVRC_PF_FAST_FWD_MASK)
+
+#define AVRC_PF_EJECT_BIT_NO            46
+#define AVRC_PF_EJECT_MASK              0x40
+#define AVRC_PF_EJECT_OFF               5
+#define AVRC_PF_EJECT_SUPPORTED(x)      ((x)[AVRC_PF_EJECT_OFF] & AVRC_PF_EJECT_MASK)
+
+#define AVRC_PF_FORWARD_BIT_NO          47
+#define AVRC_PF_FORWARD_MASK            0x80
+#define AVRC_PF_FORWARD_OFF             5
+#define AVRC_PF_FORWARD_SUPPORTED(x)    ((x)[AVRC_PF_FORWARD_OFF] & AVRC_PF_FORWARD_MASK)
+
+#define AVRC_PF_BACKWARD_BIT_NO         48
+#define AVRC_PF_BACKWARD_MASK           0x01
+#define AVRC_PF_BACKWARD_OFF            6
+#define AVRC_PF_BACKWARD_SUPPORTED(x)   ((x)[AVRC_PF_BACKWARD_OFF] & AVRC_PF_BACKWARD_MASK)
+
+#define AVRC_PF_ANGLE_BIT_NO            49
+#define AVRC_PF_ANGLE_MASK              0x02
+#define AVRC_PF_ANGLE_OFF               6
+#define AVRC_PF_ANGLE_SUPPORTED(x)      ((x)[AVRC_PF_ANGLE_OFF] & AVRC_PF_ANGLE_MASK)
+
+#define AVRC_PF_SUBPICTURE_BIT_NO       50
+#define AVRC_PF_SUBPICTURE_MASK         0x04
+#define AVRC_PF_SUBPICTURE_OFF          6
+#define AVRC_PF_SUBPICTURE_SUPPORTED(x) ((x)[AVRC_PF_SUBPICTURE_OFF] & AVRC_PF_SUBPICTURE_MASK)
+
+#define AVRC_PF_F1_BIT_NO               51
+#define AVRC_PF_F1_MASK                 0x08
+#define AVRC_PF_F1_OFF                  6
+#define AVRC_PF_F1_SUPPORTED(x)         ((x)[AVRC_PF_F1_OFF] & AVRC_PF_F1_MASK)
+
+#define AVRC_PF_F2_BIT_NO               52
+#define AVRC_PF_F2_MASK                 0x10
+#define AVRC_PF_F2_OFF                  6
+#define AVRC_PF_F2_SUPPORTED(x)         ((x)[AVRC_PF_F2_OFF] & AVRC_PF_F2_MASK)
+
+#define AVRC_PF_F3_BIT_NO               53
+#define AVRC_PF_F3_MASK                 0x20
+#define AVRC_PF_F3_OFF                  6
+#define AVRC_PF_F3_SUPPORTED(x)         ((x)[AVRC_PF_F3_OFF] & AVRC_PF_F3_MASK)
+
+#define AVRC_PF_F4_BIT_NO               54
+#define AVRC_PF_F4_MASK                 0x40
+#define AVRC_PF_F4_OFF                  6
+#define AVRC_PF_F4_SUPPORTED(x)         ((x)[AVRC_PF_F4_OFF] & AVRC_PF_F4_MASK)
+
+#define AVRC_PF_F5_BIT_NO               55
+#define AVRC_PF_F5_MASK                 0x80
+#define AVRC_PF_F5_OFF                  6
+#define AVRC_PF_F5_SUPPORTED(x)         ((x)[AVRC_PF_F5_OFF] & AVRC_PF_F5_MASK)
+
+/* Vendor unique. This PASSTHROUGH command is supported. */
+#define AVRC_PF_VENDOR_BIT_NO           56
+#define AVRC_PF_VENDOR_MASK             0x01
+#define AVRC_PF_VENDOR_OFF              7
+#define AVRC_PF_VENDOR_SUPPORTED(x)     ((x)[AVRC_PF_VENDOR_OFF] & AVRC_PF_VENDOR_MASK)
+
+/* Basic Group Navigation.  This overrules the SDP entry as it is set per player.7 */
+#define AVRC_PF_GROUP_NAVI_BIT_NO       57
+#define AVRC_PF_GROUP_NAVI_MASK         0x02
+#define AVRC_PF_GROUP_NAVI_OFF          7
+#define AVRC_PF_GROUP_NAVI_SUPPORTED(x) ((x)[AVRC_PF_GROUP_NAVI_OFF] & AVRC_PF_GROUP_NAVI_MASK)
+
+/* Advanced Control Player.  This bit is set if the player supports at least AVRCP 1.4. */
+#define AVRC_PF_ADV_CTRL_BIT_NO         58
+#define AVRC_PF_ADV_CTRL_MASK           0x04
+#define AVRC_PF_ADV_CTRL_OFF            7
+#define AVRC_PF_ADV_CTRL_SUPPORTED(x)   ((x)[AVRC_PF_ADV_CTRL_OFF] & AVRC_PF_ADV_CTRL_MASK)
+
+/* Browsing.  This bit is set if the player supports browsing. */
+#define AVRC_PF_BROWSE_BIT_NO           59
+#define AVRC_PF_BROWSE_MASK             0x08
+#define AVRC_PF_BROWSE_OFF              7
+#define AVRC_PF_BROWSE_SUPPORTED(x)     ((x)[AVRC_PF_BROWSE_OFF] & AVRC_PF_BROWSE_MASK)
+
+/* Searching. This bit is set if the player supports searching. */
+#define AVRC_PF_SEARCH_BIT_NO           60
+#define AVRC_PF_SEARCH_MASK             0x10
+#define AVRC_PF_SEARCH_OFF              7
+#define AVRC_PF_SEARCH_SUPPORTED(x)     ((x)[AVRC_PF_SEARCH_OFF] & AVRC_PF_SEARCH_MASK)
+
+/* AddToNowPlaying.  This bit is set if the player supports the AddToNowPlaying command. */
+#define AVRC_PF_ADD2NOWPLAY_BIT_NO      61
+#define AVRC_PF_ADD2NOWPLAY_MASK        0x20
+#define AVRC_PF_ADD2NOWPLAY_OFF         7
+#define AVRC_PF_ADD2NOWPLAY_SUPPORTED(x) ((x)[AVRC_PF_ADD2NOWPLAY_OFF] & AVRC_PF_ADD2NOWPLAY_MASK)
+
+/* UIDs unique in player browse tree.  This bit is set if the player is able to maintain unique UIDs across the player browse tree. */
+#define AVRC_PF_UID_UNIQUE_BIT_NO       62
+#define AVRC_PF_UID_UNIQUE_MASK         0x40
+#define AVRC_PF_UID_UNIQUE_OFF          7
+#define AVRC_PF_UID_UNIQUE_SUPPORTED(x) ((x)[AVRC_PF_UID_UNIQUE_OFF] & AVRC_PF_UID_UNIQUE_MASK)
+
+/* OnlyBrowsableWhenAddressed.  This bit is set if the player is only able to be browsed when it is set as the Addressed Player. */
+#define AVRC_PF_BR_WH_ADDR_BIT_NO       63
+#define AVRC_PF_BR_WH_ADDR_MASK         0x80
+#define AVRC_PF_BR_WH_ADDR_OFF          7
+#define AVRC_PF_BR_WH_ADDR_SUPPORTED(x) ((x)[AVRC_PF_BR_WH_ADDR_OFF] & AVRC_PF_BR_WH_ADDR_MASK)
+
+/* OnlySearchableWhenAddressed.  This bit is set if the player is only able to be searched when it is set as the Addressed player. */
+#define AVRC_PF_SEARCH_WH_ADDR_BIT_NO   64
+#define AVRC_PF_SEARCH_WH_ADDR_MASK     0x01
+#define AVRC_PF_SEARCH_WH_ADDR_OFF      8
+#define AVRC_PF_SEARCH_WH_ADDR_SUPPORTED(x) ((x)[AVRC_PF_SEARCH_WH_ADDR_OFF] & AVRC_PF_SEARCH_WH_ADDR_MASK)
+
+/* NowPlaying.  This bit is set if the player supports the NowPlaying folder.  Note that for all players that support browsing this bit shall be set */
+#define AVRC_PF_NOW_PLAY_BIT_NO         65
+#define AVRC_PF_NOW_PLAY_MASK           0x02
+#define AVRC_PF_NOW_PLAY_OFF            8
+#define AVRC_PF_NOW_PLAY_SUPPORTED(x)   ((x)[AVRC_PF_NOW_PLAY_OFF] & AVRC_PF_NOW_PLAY_MASK)
+
+/* UIDPersistency.  This bit is set if the Player is able to persist UID values between AVRCP Browse Reconnect */
+#define AVRC_PF_UID_PERSIST_BIT_NO      66
+#define AVRC_PF_UID_PERSIST_MASK        0x04
+#define AVRC_PF_UID_PERSIST_OFF         8
+#define AVRC_PF_UID_PERSIST_SUPPORTED(x) ((x)[AVRC_PF_UID_PERSIST_OFF] & AVRC_PF_UID_PERSIST_MASK)
+
+/*****************************************************************************
+**  data type definitions
+*****************************************************************************/
+
+/*
+This structure contains the header parameters of an AV/C message.
+*/
+typedef struct
+{
+    UINT8   ctype;          /* Command type.  */
+    UINT8   subunit_type;   /* Subunit type. */
+    UINT8   subunit_id;     /* Subunit ID.  This value is typically ignored in AVRCP,
+                             * except for VENDOR DEPENDENT messages when the value is
+                             * vendor-dependent.  Value range is 0-7. */
+    UINT8   opcode;         /* Op Code (passthrough, vendor, etc) */
+} tAVRC_HDR;
+
+/* This structure contains a UNIT INFO message. */
+typedef struct
+{
+    tAVRC_HDR   hdr;        /* Message header. */
+    UINT32      company_id; /* Company identifier. */
+    UINT8       unit_type;  /* Unit type.  Uses the same values as subunit type. */
+    UINT8       unit;       /* This value is vendor dependent and typically zero.  */
+} tAVRC_MSG_UNIT;
+
+/* This structure contains a SUBUNIT INFO message. */
+typedef struct
+{
+    tAVRC_HDR   hdr;        /* Message header. */
+    UINT8       subunit_type[AVRC_SUB_TYPE_LEN];
+                            /* Array containing subunit type values.  */
+    BOOLEAN     panel;      /* TRUE if the panel subunit type is in the
+                             * subunit_type array, FALSE otherwise. */
+    UINT8       page;       /* Specifies which part of the subunit type table is
+                             * returned.  For AVRCP it is typically zero.
+                             * Value range is 0-7. */
+} tAVRC_MSG_SUB;
+
+/* This structure contains a VENDOR DEPENDENT message. */
+typedef struct
+{
+    tAVRC_HDR   hdr;        /* Message header. */
+    UINT32      company_id; /* Company identifier. */
+    UINT8      *p_vendor_data;/* Pointer to vendor dependent data. */
+    UINT16      vendor_len; /* Length in bytes of vendor dependent data. */
+} tAVRC_MSG_VENDOR;
+
+/* PASS THROUGH message structure */
+typedef struct
+{
+    tAVRC_HDR   hdr;        /* hdr.ctype Unused.
+                             * hdr.subunit_type Unused.
+                             * hdr.subunit_id Unused. */
+    UINT8       op_id;      /* Operation ID.  */
+    UINT8       state;      /* Keypress state.  */
+    UINT8      *p_pass_data;/* Pointer to data.  This parameter is only valid
+                             * when the op_id is AVRC_ID_VENDOR.*/
+    UINT8       pass_len;   /* Length in bytes of data. This parameter is only
+                             * valid when the op_id is AVRC_ID_VENDOR.*/
+} tAVRC_MSG_PASS;
+
+/* Command/Response indicator. */
+#define AVRC_CMD            AVCT_CMD    /* Command message */
+#define AVRC_RSP            AVCT_RSP    /* Response message */
+
+/* Browsing channel message structure */
+typedef struct
+{
+    tAVRC_HDR   hdr;            /* hdr.ctype AVRC_CMD or AVRC_RSP.
+                                 * hdr.subunit_type Unused.
+                                 * hdr.subunit_id Unused. */
+    UINT8      *p_browse_data;  /* Pointer to data.  */
+    UINT16      browse_len;     /* Length in bytes of data. */
+    BT_HDR     *p_browse_pkt;   /* The GKI buffer received. Set to NULL, if the callback function wants to keep the buffer */
+} tAVRC_MSG_BROWSE;
+
+/* This is a union of all message type structures. */
+typedef union
+{
+    tAVRC_HDR           hdr;    /* Message header. */
+    tAVRC_MSG_UNIT      unit;   /* UNIT INFO message. */
+    tAVRC_MSG_SUB       sub;    /* SUBUNIT INFO message. */
+    tAVRC_MSG_VENDOR    vendor; /* VENDOR DEPENDENT message. */
+    tAVRC_MSG_PASS      pass;   /* PASS THROUGH message. */
+    tAVRC_MSG_BROWSE    browse; /* messages thru browsing channel */
+} tAVRC_MSG;
+
+/* macros */
+#define AVRC_IS_VALID_CAP_ID(a)           (((a == AVRC_CAP_COMPANY_ID) || (a == AVRC_CAP_EVENTS_SUPPORTED)) ? TRUE : FALSE)
+
+#define AVRC_IS_VALID_EVENT_ID(a)           (((a >= AVRC_EVT_PLAY_STATUS_CHANGE) && \
+                                              (a <= AVRC_EVT_VOLUME_CHANGE)) ? TRUE : FALSE)
+
+#define AVRC_IS_VALID_ATTRIBUTE(a)          (((((a > 0) && a <= AVRC_PLAYER_SETTING_SCAN)) || \
+					      (a >= AVRC_PLAYER_SETTING_LOW_MENU_EXT)) ? TRUE : FALSE)
+
+#define AVRC_IS_VALID_MEDIA_ATTRIBUTE(a)    ((a >= AVRC_MEDIA_ATTR_ID_TITLE) && \
+                                             (a <= AVRC_MEDIA_ATTR_ID_PLAYING_TIME) ? TRUE : FALSE)
+
+#define AVRC_IS_VALID_BATTERY_STATUS(a)    ((a <= AVRC_BATTERY_STATUS_FULL_CHARGE) ? TRUE : FALSE)
+
+#define AVRC_IS_VALID_SYSTEM_STATUS(a)    ((a <= AVRC_SYSTEMSTATE_PWR_UNPLUGGED) ? TRUE : FALSE)
+
+#define AVRC_IS_VALID_GROUP(a)    ((a <= AVRC_PDU_PREV_GROUP) ? TRUE : FALSE)
+
+/* Company ID is 24-bit integer We can not use the macros in bt_types.h */
+#define AVRC_CO_ID_TO_BE_STREAM(p, u32) {*(p)++ = (UINT8)((u32) >> 16); *(p)++ = (UINT8)((u32) >> 8); *(p)++ = (UINT8)(u32); }
+#define AVRC_BE_STREAM_TO_CO_ID(u32, p) {u32 = (((UINT32)(*((p) + 2))) + (((UINT32)(*((p) + 1))) << 8) + (((UINT32)(*(p))) << 16)); (p) += 3;}
+
+/*****************************************************************************
+**  data type definitions
+*****************************************************************************/
+#define AVRC_MAX_APP_ATTR_SIZE      16
+#define AVRC_MAX_CHARSET_SIZE       16
+#define AVRC_MAX_ELEM_ATTR_SIZE     8
+
+/*****************************************************************************
+**  Metadata transfer Building/Parsing definitions
+*****************************************************************************/
+
+typedef struct {
+    UINT16              charset_id;
+    UINT16              str_len;
+    UINT8               *p_str;
+} tAVRC_FULL_NAME;
+
+typedef struct {
+    UINT16              str_len;
+    UINT8               *p_str;
+} tAVRC_NAME;
+
+#ifndef AVRC_CAP_MAX_NUM_COMP_ID
+#define AVRC_CAP_MAX_NUM_COMP_ID    4
+#endif
+
+#ifndef AVRC_CAP_MAX_NUM_EVT_ID
+#define AVRC_CAP_MAX_NUM_EVT_ID     16
+#endif
+
+typedef union
+{
+    UINT32  company_id[AVRC_CAP_MAX_NUM_COMP_ID];
+    UINT8   event_id[AVRC_CAP_MAX_NUM_EVT_ID];
+} tAVRC_CAPS_PARAM;
+
+typedef struct
+{
+    UINT8   attr_id;
+    UINT8   attr_val;
+} tAVRC_APP_SETTING;
+
+typedef struct
+{
+    UINT8   attr_id;
+    UINT16  charset_id;
+    UINT8   str_len;
+    UINT8   *p_str;
+} tAVRC_APP_SETTING_TEXT;
+
+typedef UINT8 tAVRC_FEATURE_MASK[AVRC_FEATURE_MASK_SIZE];
+
+typedef struct
+{
+    UINT16              player_id;      /* A unique identifier for this media player.*/
+    UINT8               major_type;     /* Use AVRC_MJ_TYPE_AUDIO, AVRC_MJ_TYPE_VIDEO, AVRC_MJ_TYPE_BC_AUDIO, or AVRC_MJ_TYPE_BC_VIDEO.*/
+    UINT32              sub_type;       /* Use AVRC_SUB_TYPE_NONE, AVRC_SUB_TYPE_AUDIO_BOOK, or AVRC_SUB_TYPE_PODCAST*/
+    UINT8               play_status;    /* Use AVRC_PLAYSTATE_STOPPED, AVRC_PLAYSTATE_PLAYING, AVRC_PLAYSTATE_PAUSED, AVRC_PLAYSTATE_FWD_SEEK,
+                                            AVRC_PLAYSTATE_REV_SEEK, or AVRC_PLAYSTATE_ERROR*/
+    tAVRC_FEATURE_MASK  features;       /* Supported feature bit mask*/
+    tAVRC_FULL_NAME     name;           /* The player name, name length and character set id.*/
+} tAVRC_ITEM_PLAYER;
+
+typedef struct
+{
+    tAVRC_UID           uid;            /* The uid of this folder */
+    UINT8               type;           /* Use AVRC_FOLDER_TYPE_MIXED, AVRC_FOLDER_TYPE_TITLES,
+                                           AVRC_FOLDER_TYPE_ALNUMS, AVRC_FOLDER_TYPE_ARTISTS, AVRC_FOLDER_TYPE_GENRES,
+                                           AVRC_FOLDER_TYPE_PLAYLISTS, or AVRC_FOLDER_TYPE_YEARS.*/
+    BOOLEAN             playable;       /* TRUE, if the folder can be played. */
+    tAVRC_FULL_NAME     name;           /* The folder name, name length and character set id. */
+} tAVRC_ITEM_FOLDER;
+
+typedef struct
+{
+    UINT32              attr_id;        /* Use AVRC_MEDIA_ATTR_ID_TITLE, AVRC_MEDIA_ATTR_ID_ARTIST, AVRC_MEDIA_ATTR_ID_ALBUM,
+                                           AVRC_MEDIA_ATTR_ID_TRACK_NUM, AVRC_MEDIA_ATTR_ID_NUM_TRACKS,
+                                           AVRC_MEDIA_ATTR_ID_GENRE, AVRC_MEDIA_ATTR_ID_PLAYING_TIME */
+    tAVRC_FULL_NAME     name;           /* The attribute value, value length and character set id. */
+} tAVRC_ATTR_ENTRY;
+
+typedef struct
+{
+    tAVRC_UID           uid;            /* The uid of this media element item */
+    UINT8               type;           /* Use AVRC_MEDIA_TYPE_AUDIO or AVRC_MEDIA_TYPE_VIDEO. */
+    tAVRC_FULL_NAME     name;           /* The media name, name length and character set id. */
+    UINT8               attr_count;     /* The number of attributes in p_attr_list */
+    tAVRC_ATTR_ENTRY*   p_attr_list;    /* Attribute entry list. */
+} tAVRC_ITEM_MEDIA;
+
+typedef struct
+{
+    UINT8                   item_type;  /* AVRC_ITEM_PLAYER, AVRC_ITEM_FOLDER, or AVRC_ITEM_MEDIA */
+    union
+    {
+        tAVRC_ITEM_PLAYER   player;     /* The properties of a media player item.*/
+        tAVRC_ITEM_FOLDER   folder;     /* The properties of a folder item.*/
+        tAVRC_ITEM_MEDIA    media;      /* The properties of a media item.*/
+    } u;
+} tAVRC_ITEM;
+
+/* GetCapability */
+typedef struct
+{
+    UINT8       pdu;
+    tAVRC_STS   status;
+    UINT8       opcode;         /* Op Code (assigned by AVRC_BldCommand according to pdu) */
+    UINT8       capability_id;
+} tAVRC_GET_CAPS_CMD;
+
+/* ListPlayerAppValues */
+typedef struct
+{
+    UINT8       pdu;
+    tAVRC_STS   status;
+    UINT8       opcode;         /* Op Code (assigned by AVRC_BldCommand according to pdu) */
+    UINT8       attr_id;
+} tAVRC_LIST_APP_VALUES_CMD;
+
+/* GetCurAppValue */
+typedef struct
+{
+    UINT8       pdu;
+    tAVRC_STS   status;
+    UINT8       opcode;         /* Op Code (assigned by AVRC_BldCommand according to pdu) */
+    UINT8       num_attr;
+    UINT8       attrs[AVRC_MAX_APP_ATTR_SIZE];
+} tAVRC_GET_CUR_APP_VALUE_CMD;
+
+/* SetAppValue */
+typedef struct
+{
+    UINT8       pdu;
+    tAVRC_STS   status;
+    UINT8       opcode;         /* Op Code (assigned by AVRC_BldCommand according to pdu) */
+    UINT8       num_val;
+    tAVRC_APP_SETTING   *p_vals;
+} tAVRC_SET_APP_VALUE_CMD;
+
+/* GetAppAttrTxt */
+typedef struct
+{
+    UINT8       pdu;
+    tAVRC_STS   status;
+    UINT8       opcode;         /* Op Code (assigned by AVRC_BldCommand according to pdu) */
+    UINT8       num_attr;
+    UINT8       attrs[AVRC_MAX_APP_ATTR_SIZE];
+} tAVRC_GET_APP_ATTR_TXT_CMD;
+
+/* GetAppValueTxt */
+typedef struct
+{
+    UINT8       pdu;
+    tAVRC_STS   status;
+    UINT8       opcode;         /* Op Code (assigned by AVRC_BldCommand according to pdu) */
+    UINT8       attr_id;
+    UINT8       num_val;
+    UINT8       vals[AVRC_MAX_APP_ATTR_SIZE];
+} tAVRC_GET_APP_VAL_TXT_CMD;
+
+/* InformCharset */
+typedef struct
+{
+    UINT8       pdu;
+    tAVRC_STS   status;
+    UINT8       opcode;         /* Op Code (assigned by AVRC_BldCommand according to pdu) */
+    UINT8       num_id;
+    UINT16      charsets[AVRC_MAX_CHARSET_SIZE];
+} tAVRC_INFORM_CHARSET_CMD;
+
+/* InformBatteryStatus */
+typedef struct
+{
+    UINT8       pdu;
+    tAVRC_STS   status;
+    UINT8       opcode;         /* Op Code (assigned by AVRC_BldCommand according to pdu) */
+    UINT8       battery_status;
+} tAVRC_BATTERY_STATUS_CMD;
+
+/* GetElemAttrs */
+typedef struct
+{
+    UINT8       pdu;
+    tAVRC_STS   status;
+    UINT8       opcode;         /* Op Code (assigned by AVRC_BldCommand according to pdu) */
+    UINT8       num_attr;
+    UINT32      attrs[AVRC_MAX_ELEM_ATTR_SIZE];
+} tAVRC_GET_ELEM_ATTRS_CMD;
+
+/* RegNotify */
+typedef struct
+{
+    UINT8       pdu;
+    tAVRC_STS   status;
+    UINT8       opcode;         /* Op Code (assigned by AVRC_BldCommand according to pdu) */
+    UINT8       event_id;
+    UINT32      param;
+} tAVRC_REG_NOTIF_CMD;
+
+/* SetAddrPlayer */
+typedef struct
+{
+    UINT8       pdu;
+    tAVRC_STS   status;
+    UINT8       opcode;         /* Op Code (assigned by AVRC_BldCommand according to pdu) */
+    UINT16      player_id;
+} tAVRC_SET_ADDR_PLAYER_CMD;
+
+/* SetBrowsedPlayer */
+typedef struct
+{
+    UINT8       pdu;
+    tAVRC_STS   status;
+    UINT8       opcode;         /* Op Code (assigned by AVRC_BldCommand according to pdu) */
+    UINT16      player_id;
+} tAVRC_SET_BR_PLAYER_CMD;
+
+/* SetAbsVolume */
+typedef struct
+{
+    UINT8       pdu;
+    tAVRC_STS   status;
+    UINT8       opcode;         /* Op Code (assigned by AVRC_BldCommand according to pdu) */
+    UINT8       volume;
+} tAVRC_SET_VOLUME_CMD;
+
+/* GetFolderItems */
+typedef struct
+{
+    UINT8       pdu;
+    tAVRC_STS   status;
+    UINT8       opcode;         /* Op Code (assigned by AVRC_BldCommand according to pdu) */
+    UINT8       scope;
+    UINT32      start_item;
+    UINT32      end_item;
+    UINT8       attr_count;
+    UINT32      *p_attr_list;
+} tAVRC_GET_ITEMS_CMD;
+
+/* ChangePath */
+typedef struct
+{
+    UINT8       pdu;
+    tAVRC_STS   status;
+    UINT8       opcode;         /* Op Code (assigned by AVRC_BldCommand according to pdu) */
+    UINT16      uid_counter;
+    UINT8       direction;
+    tAVRC_UID   folder_uid;
+} tAVRC_CHG_PATH_CMD;
+
+/* GetItemAttrs */
+typedef struct
+{
+    UINT8       pdu;
+    tAVRC_STS   status;
+    UINT8       opcode;         /* Op Code (assigned by AVRC_BldCommand according to pdu) */
+    UINT8       scope;
+    tAVRC_UID   uid;
+    UINT16      uid_counter;
+    UINT8       attr_count;
+    UINT32      *p_attr_list;
+} tAVRC_GET_ATTRS_CMD;
+
+/* Search */
+typedef struct
+{
+    UINT8           pdu;
+    tAVRC_STS       status;
+    UINT8           opcode;         /* Op Code (assigned by AVRC_BldCommand according to pdu) */
+    tAVRC_FULL_NAME string;
+} tAVRC_SEARCH_CMD;
+
+/* PlayItem */
+typedef struct
+{
+    UINT8       pdu;
+    tAVRC_STS   status;
+    UINT8       opcode;         /* Op Code (assigned by AVRC_BldCommand according to pdu) */
+    UINT8       scope;
+    tAVRC_UID   uid;
+    UINT16      uid_counter;
+} tAVRC_PLAY_ITEM_CMD;
+
+/* AddToNowPlaying */
+typedef struct
+{
+    UINT8       pdu;
+    tAVRC_STS   status;
+    UINT8       opcode;         /* Op Code (assigned by AVRC_BldCommand according to pdu) */
+    UINT8       scope;
+    tAVRC_UID   uid;
+    UINT16      uid_counter;
+} tAVRC_ADD_TO_PLAY_CMD;
+
+typedef struct
+{
+    UINT8       pdu;
+    tAVRC_STS   status;
+    UINT8       opcode;         /* Op Code (assigned by AVRC_BldCommand according to pdu) */
+} tAVRC_CMD;
+
+/* Continue and Abort */
+typedef struct
+{
+    UINT8       pdu;
+    tAVRC_STS   status;
+    UINT8       opcode;         /* Op Code (assigned by AVRC_BldCommand according to pdu) */
+    UINT8       target_pdu;
+} tAVRC_NEXT_CMD;
+
+typedef union
+{
+    UINT8                       pdu;
+    tAVRC_CMD                   cmd;
+    tAVRC_GET_CAPS_CMD          get_caps;               /* GetCapability */
+    tAVRC_CMD                   list_app_attr;          /* ListPlayerAppAttr */
+    tAVRC_LIST_APP_VALUES_CMD   list_app_values;        /* ListPlayerAppValues */
+    tAVRC_GET_CUR_APP_VALUE_CMD get_cur_app_val;        /* GetCurAppValue */
+    tAVRC_SET_APP_VALUE_CMD     set_app_val;            /* SetAppValue */
+    tAVRC_GET_APP_ATTR_TXT_CMD  get_app_attr_txt;       /* GetAppAttrTxt */
+    tAVRC_GET_APP_VAL_TXT_CMD   get_app_val_txt;        /* GetAppValueTxt */
+    tAVRC_INFORM_CHARSET_CMD    inform_charset;         /* InformCharset */
+    tAVRC_BATTERY_STATUS_CMD    inform_battery_status;  /* InformBatteryStatus */
+    tAVRC_GET_ELEM_ATTRS_CMD    get_elem_attrs;         /* GetElemAttrs */
+    tAVRC_CMD                   get_play_status;        /* GetPlayStatus */
+    tAVRC_REG_NOTIF_CMD         reg_notif;              /* RegNotify */
+    tAVRC_NEXT_CMD              continu;                /* Continue */
+    tAVRC_NEXT_CMD              abort;                  /* Abort */
+
+    tAVRC_SET_ADDR_PLAYER_CMD   addr_player;            /* SetAddrPlayer */
+    tAVRC_SET_VOLUME_CMD        volume;                 /* SetAbsVolume */
+    tAVRC_SET_BR_PLAYER_CMD     br_player;              /* SetBrowsedPlayer */
+    tAVRC_GET_ITEMS_CMD         get_items;              /* GetFolderItems */
+    tAVRC_CHG_PATH_CMD          chg_path;               /* ChangePath */
+    tAVRC_GET_ATTRS_CMD         get_attrs;              /* GetItemAttrs */
+    tAVRC_SEARCH_CMD            search;                 /* Search */
+    tAVRC_PLAY_ITEM_CMD         play_item;              /* PlayItem */
+    tAVRC_ADD_TO_PLAY_CMD       add_to_play;            /* AddToNowPlaying */
+} tAVRC_COMMAND;
+
+/* GetCapability */
+typedef struct
+{
+    UINT8       pdu;
+    tAVRC_STS   status;
+    UINT8       opcode;         /* Op Code (copied from avrc_cmd.opcode by AVRC_BldResponse user. invalid one to generate according to pdu) */
+    UINT8       capability_id;
+    UINT8       count;
+    tAVRC_CAPS_PARAM param;
+} tAVRC_GET_CAPS_RSP;
+
+/* ListPlayerAppAttr */
+typedef struct
+{
+    UINT8       pdu;
+    tAVRC_STS   status;
+    UINT8       opcode;         /* Op Code (copied from avrc_cmd.opcode by AVRC_BldResponse user. invalid one to generate according to pdu) */
+    UINT8       num_attr;
+    UINT8       attrs[AVRC_MAX_APP_ATTR_SIZE];
+} tAVRC_LIST_APP_ATTR_RSP;
+
+/* ListPlayerAppValues */
+typedef struct
+{
+    UINT8       pdu;
+    tAVRC_STS   status;
+    UINT8       opcode;         /* Op Code (copied from avrc_cmd.opcode by AVRC_BldResponse user. invalid one to generate according to pdu) */
+    UINT8       num_val;
+    UINT8       vals[AVRC_MAX_APP_ATTR_SIZE];
+} tAVRC_LIST_APP_VALUES_RSP;
+
+/* GetCurAppValue */
+typedef struct
+{
+    UINT8       pdu;
+    tAVRC_STS   status;
+    UINT8       opcode;         /* Op Code (copied from avrc_cmd.opcode by AVRC_BldResponse user. invalid one to generate according to pdu) */
+    UINT8       num_val;
+    tAVRC_APP_SETTING   *p_vals;
+} tAVRC_GET_CUR_APP_VALUE_RSP;
+
+/* GetAppAttrTxt */
+typedef struct
+{
+    UINT8       pdu;
+    tAVRC_STS   status;
+    UINT8       opcode;         /* Op Code (copied from avrc_cmd.opcode by AVRC_BldResponse user. invalid one to generate according to pdu) */
+    UINT8       num_attr;
+    tAVRC_APP_SETTING_TEXT   *p_attrs;
+} tAVRC_GET_APP_ATTR_TXT_RSP;
+
+/* GetElemAttrs */
+typedef struct
+{
+    UINT8       pdu;
+    tAVRC_STS   status;
+    UINT8       opcode;         /* Op Code (copied from avrc_cmd.opcode by AVRC_BldResponse user. invalid one to generate according to pdu) */
+    UINT8       num_attr;
+    tAVRC_ATTR_ENTRY   *p_attrs;
+} tAVRC_GET_ELEM_ATTRS_RSP;
+
+/* GetPlayStatus */
+typedef struct
+{
+    UINT8       pdu;
+    tAVRC_STS   status;
+    UINT8       opcode;         /* Op Code (copied from avrc_cmd.opcode by AVRC_BldResponse user. invalid one to generate according to pdu) */
+    UINT32      song_len;
+    UINT32      song_pos;
+    UINT8       play_status;
+} tAVRC_GET_PLAY_STATUS_RSP;
+
+/* notification event parameter for AddressedPlayer change */
+typedef struct
+{
+    UINT16              player_id;
+    UINT16              uid_counter;
+} tAVRC_ADDR_PLAYER_PARAM;
+
+#ifndef AVRC_MAX_APP_SETTINGS
+#define AVRC_MAX_APP_SETTINGS    8
+#endif
+
+/* notification event parameter for Player Application setting change */
+typedef struct
+{
+    UINT8               num_attr;
+    UINT8               attr_id[AVRC_MAX_APP_SETTINGS];
+    UINT8               attr_value[AVRC_MAX_APP_SETTINGS];
+} tAVRC_PLAYER_APP_PARAM;
+
+typedef union
+{
+    tAVRC_PLAYSTATE         play_status;
+    tAVRC_UID               track;
+    UINT32                  play_pos;
+    tAVRC_BATTERY_STATUS    battery_status;
+    tAVRC_SYSTEMSTATE       system_status;
+    tAVRC_PLAYER_APP_PARAM  player_setting;
+    tAVRC_ADDR_PLAYER_PARAM addr_player;
+    UINT16                  uid_counter;
+    UINT8                   volume;
+} tAVRC_NOTIF_RSP_PARAM;
+
+/* RegNotify */
+typedef struct
+{
+    UINT8                   pdu;
+    tAVRC_STS               status;
+    UINT8                   opcode;         /* Op Code (copied from avrc_cmd.opcode by AVRC_BldResponse user. invalid one to generate according to pdu) */
+    UINT8                   event_id;
+    tAVRC_NOTIF_RSP_PARAM   param;
+} tAVRC_REG_NOTIF_RSP;
+
+/* SetAbsVolume */
+typedef struct
+{
+    UINT8               pdu;
+    tAVRC_STS           status;
+    UINT8               opcode;         /* Op Code (copied from avrc_cmd.opcode by AVRC_BldResponse user. invalid one to generate according to pdu) */
+    UINT8               volume;
+} tAVRC_SET_VOLUME_RSP;
+
+/* SetBrowsedPlayer */
+typedef struct
+{
+    UINT8               pdu;
+    tAVRC_STS           status;
+    UINT8               opcode;         /* Op Code (copied from avrc_cmd.opcode by AVRC_BldResponse user. invalid one to generate according to pdu) */
+    UINT16              uid_counter;
+    UINT32              num_items;
+    UINT16              charset_id;
+    UINT8               folder_depth;
+    tAVRC_NAME          *p_folders;
+} tAVRC_SET_BR_PLAYER_RSP;
+
+/* GetFolderItems */
+typedef struct
+{
+    UINT8               pdu;
+    tAVRC_STS           status;
+    UINT8               opcode;         /* Op Code (copied from avrc_cmd.opcode by AVRC_BldResponse user. invalid one to generate according to pdu) */
+    UINT16              uid_counter;
+    UINT16              item_count;
+    tAVRC_ITEM          *p_item_list;
+} tAVRC_GET_ITEMS_RSP;
+
+/* ChangePath */
+typedef struct
+{
+    UINT8               pdu;
+    tAVRC_STS           status;
+    UINT8               opcode;         /* Op Code (copied from avrc_cmd.opcode by AVRC_BldResponse user. invalid one to generate according to pdu) */
+    UINT32              num_items;
+} tAVRC_CHG_PATH_RSP;
+
+/* GetItemAttrs */
+typedef struct
+{
+    UINT8               pdu;
+    tAVRC_STS           status;
+    UINT8               opcode;         /* Op Code (copied from avrc_cmd.opcode by AVRC_BldResponse user. invalid one to generate according to pdu) */
+    UINT8               attr_count;
+    tAVRC_ATTR_ENTRY    *p_attr_list;
+} tAVRC_GET_ATTRS_RSP;
+
+/* Search */
+typedef struct
+{
+    UINT8               pdu;
+    tAVRC_STS           status;
+    UINT8               opcode;         /* Op Code (copied from avrc_cmd.opcode by AVRC_BldResponse user. invalid one to generate according to pdu) */
+    UINT16              uid_counter;
+    UINT32              num_items;
+} tAVRC_SEARCH_RSP;
+
+typedef struct
+{
+    UINT8       pdu;
+    tAVRC_STS   status;
+    UINT8       opcode;         /* Op Code (copied from avrc_cmd.opcode by AVRC_BldResponse user. invalid one to generate according to pdu) */
+} tAVRC_RSP;
+
+typedef union
+{
+    UINT8                           pdu;
+    tAVRC_RSP                       rsp;
+    tAVRC_GET_CAPS_RSP              get_caps;               /* GetCapability */
+    tAVRC_LIST_APP_ATTR_RSP         list_app_attr;          /* ListPlayerAppAttr */
+    tAVRC_LIST_APP_VALUES_RSP       list_app_values;        /* ListPlayerAppValues */
+    tAVRC_GET_CUR_APP_VALUE_RSP     get_cur_app_val;        /* GetCurAppValue */
+    tAVRC_RSP                       set_app_val;            /* SetAppValue */
+    tAVRC_GET_APP_ATTR_TXT_RSP      get_app_attr_txt;       /* GetAppAttrTxt */
+    tAVRC_GET_APP_ATTR_TXT_RSP      get_app_val_txt;        /* GetAppValueTxt */
+    tAVRC_RSP                       inform_charset;         /* InformCharset */
+    tAVRC_RSP                       inform_battery_status;  /* InformBatteryStatus */
+    tAVRC_GET_ELEM_ATTRS_RSP        get_elem_attrs;         /* GetElemAttrs */
+    tAVRC_GET_PLAY_STATUS_RSP       get_play_status;        /* GetPlayStatus */
+    tAVRC_REG_NOTIF_RSP             reg_notif;              /* RegNotify */
+    tAVRC_RSP                       continu;                /* Continue */
+    tAVRC_RSP                       abort;                  /* Abort */
+
+    tAVRC_RSP                       addr_player;            /* SetAddrPlayer */
+    tAVRC_SET_VOLUME_RSP            volume;                 /* SetAbsVolume */
+    tAVRC_SET_BR_PLAYER_RSP         br_player;              /* SetBrowsedPlayer */
+    tAVRC_GET_ITEMS_RSP             get_items;              /* GetFolderItems */
+    tAVRC_CHG_PATH_RSP              chg_path;               /* ChangePath */
+    tAVRC_GET_ATTRS_RSP             get_attrs;              /* GetItemAttrs */
+    tAVRC_SEARCH_RSP                search;                 /* Search */
+    tAVRC_RSP                       play_item;              /* PlayItem */
+    tAVRC_RSP                       add_to_play;            /* AddToNowPlaying */
+} tAVRC_RESPONSE;
+
+#endif
diff --git a/rtkbt/code/bt/stack/include/bnep_api.h b/rtkbt/code/bt/stack/include/bnep_api.h
new file mode 100755
index 0000000..3ca31d5
--- /dev/null
+++ b/rtkbt/code/bt/stack/include/bnep_api.h
@@ -0,0 +1,464 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2001-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This interface file contains the interface to the Bluetooth Network
+ *  Encapsilation Protocol (BNEP).
+ *
+ ******************************************************************************/
+#ifndef BNEP_API_H
+#define BNEP_API_H
+
+#include "l2c_api.h"
+
+/*****************************************************************************
+**  Constants
+*****************************************************************************/
+
+/* Define the minimum offset needed in a GKI buffer for
+** sending BNEP packets. Note, we are currently not sending
+** extension headers, but may in the future, so allow
+** space for them
+*/
+#define BNEP_MINIMUM_OFFSET        (15 + L2CAP_MIN_OFFSET)
+#define BNEP_INVALID_HANDLE         0xFFFF
+
+/*****************************************************************************
+**  Type Definitions
+*****************************************************************************/
+
+/* Define the result codes from BNEP
+*/
+enum
+{
+    BNEP_SUCCESS,                       /* Success                           */
+    BNEP_CONN_DISCONNECTED,             /* Connection terminated   */
+    BNEP_NO_RESOURCES,                  /* No resources                      */
+    BNEP_MTU_EXCEDED,                   /* Attempt to write long data        */
+    BNEP_INVALID_OFFSET,                /* Insufficient offset in GKI buffer */
+    BNEP_CONN_FAILED,                   /* Connection failed                 */
+    BNEP_CONN_FAILED_CFG,               /* Connection failed cos of config   */
+    BNEP_CONN_FAILED_SRC_UUID,          /* Connection failed wrong source UUID   */
+    BNEP_CONN_FAILED_DST_UUID,          /* Connection failed wrong destination UUID   */
+    BNEP_CONN_FAILED_UUID_SIZE,         /* Connection failed wrong size UUID   */
+    BNEP_Q_SIZE_EXCEEDED,               /* Too many buffers to dest          */
+    BNEP_TOO_MANY_FILTERS,              /* Too many local filters specified  */
+    BNEP_SET_FILTER_FAIL,               /* Set Filter failed  */
+    BNEP_WRONG_HANDLE,                  /* Wrong handle for the connection  */
+    BNEP_WRONG_STATE,                   /* Connection is in wrong state */
+    BNEP_SECURITY_FAIL,                 /* Failed because of security */
+    BNEP_IGNORE_CMD,                    /* To ignore the rcvd command */
+    BNEP_TX_FLOW_ON,                    /* tx data flow enabled */
+    BNEP_TX_FLOW_OFF                    /* tx data flow disabled */
+
+}; typedef UINT8 tBNEP_RESULT;
+
+
+/***************************
+**  Callback Functions
+****************************/
+
+/* Connection state change callback prototype. Parameters are
+**              Connection handle
+**              BD Address of remote
+**              Connection state change result
+**                  BNEP_SUCCESS indicates connection is success
+**                  All values are used to indicate the reason for failure
+**              Flag to indicate if it is just a role change
+*/
+typedef void (tBNEP_CONN_STATE_CB) (UINT16 handle,
+                                    BD_ADDR rem_bda,
+                                    tBNEP_RESULT result,
+                                    BOOLEAN is_role_change);
+
+
+
+
+/* Connection indication callback prototype. Parameters are
+**              BD Address of remote, remote UUID and local UUID
+**              and flag to indicate role change and handle to the connection
+**              When BNEP calls this function profile should
+**              use BNEP_ConnectResp call to accept or reject the request
+*/
+typedef void (tBNEP_CONNECT_IND_CB) (UINT16 handle,
+                                     BD_ADDR bd_addr,
+                                     tBT_UUID *remote_uuid,
+                                     tBT_UUID *local_uuid,
+                                     BOOLEAN is_role_change);
+
+
+
+/* Data buffer received indication callback prototype. Parameters are
+**              Handle to the connection
+**              Source BD/Ethernet Address
+**              Dest BD/Ethernet address
+**              Protocol
+**              Pointer to the buffer
+**              Flag to indicate whether extension headers to be forwarded are present
+*/
+typedef void (tBNEP_DATA_BUF_CB) (UINT16 handle,
+                                  UINT8 *src,
+                                  UINT8 *dst,
+                                  UINT16 protocol,
+                                  BT_HDR *p_buf,
+                                  BOOLEAN fw_ext_present);
+
+
+/* Data received indication callback prototype. Parameters are
+**              Handle to the connection
+**              Source BD/Ethernet Address
+**              Dest BD/Ethernet address
+**              Protocol
+**              Pointer to the beginning of the data
+**              Length of data
+**              Flag to indicate whether extension headers to be forwarded are present
+*/
+typedef void (tBNEP_DATA_IND_CB) (UINT16 handle,
+                                  UINT8 *src,
+                                  UINT8 *dst,
+                                  UINT16 protocol,
+                                  UINT8 *p_data,
+                                  UINT16 len,
+                                  BOOLEAN fw_ext_present);
+
+/* Flow control callback for TX data. Parameters are
+**              Handle to the connection
+**              Event  flow status
+*/
+typedef void (tBNEP_TX_DATA_FLOW_CB) (UINT16 handle,
+                                      tBNEP_RESULT  event);
+
+/* Filters received indication callback prototype. Parameters are
+**              Handle to the connection
+**              TRUE if the cb is called for indication
+**              Ignore this if it is indication, otherwise it is the result
+**                      for the filter set operation performed by the local
+**                      device
+**              Number of protocol filters present
+**              Pointer to the filters start. Filters are present in pairs
+**                      of start of the range and end of the range.
+**                      They will be present in big endian order. First
+**                      two bytes will be starting of the first range and
+**                      next two bytes will be ending of the range.
+*/
+typedef void (tBNEP_FILTER_IND_CB) (UINT16 handle,
+                                    BOOLEAN indication,
+                                    tBNEP_RESULT result,
+                                    UINT16 num_filters,
+                                    UINT8 *p_filters);
+
+
+
+/* Multicast Filters received indication callback prototype. Parameters are
+**              Handle to the connection
+**              TRUE if the cb is called for indication
+**              Ignore this if it is indication, otherwise it is the result
+**                      for the filter set operation performed by the local
+**                      device
+**              Number of multicast filters present
+**              Pointer to the filters start. Filters are present in pairs
+**                      of start of the range and end of the range.
+**                      First six bytes will be starting of the first range and
+**                      next six bytes will be ending of the range.
+*/
+typedef void (tBNEP_MFILTER_IND_CB) (UINT16 handle,
+                                     BOOLEAN indication,
+                                     tBNEP_RESULT result,
+                                     UINT16 num_mfilters,
+                                     UINT8 *p_mfilters);
+
+/* This is the structure used by profile to register with BNEP */
+typedef struct
+{
+    tBNEP_CONNECT_IND_CB    *p_conn_ind_cb;     /* To indicate the conn request */
+    tBNEP_CONN_STATE_CB     *p_conn_state_cb;   /* To indicate conn state change */
+    tBNEP_DATA_IND_CB       *p_data_ind_cb;     /* To pass the data received */
+    tBNEP_DATA_BUF_CB       *p_data_buf_cb;     /* To pass the data buffer received */
+    tBNEP_TX_DATA_FLOW_CB   *p_tx_data_flow_cb; /* data flow callback */
+    tBNEP_FILTER_IND_CB     *p_filter_ind_cb;   /* To indicate that peer set protocol filters */
+    tBNEP_MFILTER_IND_CB    *p_mfilter_ind_cb;  /* To indicate that peer set mcast filters */
+
+} tBNEP_REGISTER;
+
+
+
+/* This is the structure used by profile to get the status of BNEP */
+typedef struct
+{
+#define BNEP_STATUS_FAILE            0
+#define BNEP_STATUS_CONNECTED        1
+    UINT8             con_status;
+
+    UINT16            l2cap_cid;
+    BD_ADDR           rem_bda;
+    UINT16            rem_mtu_size;
+    UINT16            xmit_q_depth;
+
+    UINT16            sent_num_filters;
+    UINT16            sent_mcast_filters;
+    UINT16            rcvd_num_filters;
+    UINT16            rcvd_mcast_filters;
+    tBT_UUID          src_uuid;
+    tBT_UUID          dst_uuid;
+
+} tBNEP_STATUS;
+
+
+
+/*****************************************************************************
+**  External Function Declarations
+*****************************************************************************/
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*******************************************************************************
+**
+** Function         BNEP_Register
+**
+** Description      This function is called by the upper layer to register
+**                  its callbacks with BNEP
+**
+** Parameters:      p_reg_info - contains all callback function pointers
+**
+**
+** Returns          BNEP_SUCCESS        if registered successfully
+**                  BNEP_FAILURE        if connection state callback is missing
+**
+*******************************************************************************/
+extern tBNEP_RESULT BNEP_Register (tBNEP_REGISTER *p_reg_info);
+
+/*******************************************************************************
+**
+** Function         BNEP_Deregister
+**
+** Description      This function is called by the upper layer to de-register
+**                  its callbacks.
+**
+** Parameters:      void
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BNEP_Deregister (void);
+
+
+/*******************************************************************************
+**
+** Function         BNEP_Connect
+**
+** Description      This function creates a BNEP connection to a remote
+**                  device.
+**
+** Parameters:      p_rem_addr  - BD_ADDR of the peer
+**                  src_uuid    - source uuid for the connection
+**                  dst_uuid    - destination uuid for the connection
+**                  p_handle    - pointer to return the handle for the connection
+**
+** Returns          BNEP_SUCCESS                if connection started
+**                  BNEP_NO_RESOURCES           if no resources
+**
+*******************************************************************************/
+extern tBNEP_RESULT BNEP_Connect (BD_ADDR p_rem_bda,
+                                  tBT_UUID *src_uuid,
+                                  tBT_UUID *dst_uuid,
+                                  UINT16 *p_handle);
+
+/*******************************************************************************
+**
+** Function         BNEP_ConnectResp
+**
+** Description      This function is called in responce to connection indication
+**
+**
+** Parameters:      handle  - handle given in the connection indication
+**                  resp    - responce for the connection indication
+**
+** Returns          BNEP_SUCCESS                if connection started
+**                  BNEP_WRONG_HANDLE           if the connection is not found
+**                  BNEP_WRONG_STATE            if the responce is not expected
+**
+*******************************************************************************/
+extern tBNEP_RESULT BNEP_ConnectResp (UINT16 handle, tBNEP_RESULT resp);
+
+/*******************************************************************************
+**
+** Function         BNEP_Disconnect
+**
+** Description      This function is called to close the specified connection.
+**
+** Parameters:      handle   - handle of the connection
+**
+** Returns          BNEP_SUCCESS                if connection is disconnected
+**                  BNEP_WRONG_HANDLE           if no connection is not found
+**
+*******************************************************************************/
+extern tBNEP_RESULT BNEP_Disconnect (UINT16 handle);
+
+/*******************************************************************************
+**
+** Function         BNEP_WriteBuf
+**
+** Description      This function sends data in a GKI buffer on BNEP connection
+**
+** Parameters:      handle       - handle of the connection to write
+**                  p_dest_addr  - BD_ADDR/Ethernet addr of the destination
+**                  p_buf        - pointer to address of buffer with data
+**                  protocol     - protocol type of the packet
+**                  p_src_addr   - (optional) BD_ADDR/ethernet address of the source
+**                                 (should be NULL if it is local BD Addr)
+**                  fw_ext_present - forwarded extensions present
+**
+** Returns:         BNEP_WRONG_HANDLE       - if passed handle is not valid
+**                  BNEP_MTU_EXCEDED        - If the data length is greater than MTU
+**                  BNEP_IGNORE_CMD         - If the packet is filtered out
+**                  BNEP_Q_SIZE_EXCEEDED    - If the Tx Q is full
+**                  BNEP_SUCCESS            - If written successfully
+**
+*******************************************************************************/
+extern tBNEP_RESULT BNEP_WriteBuf (UINT16 handle,
+                                   UINT8 *p_dest_addr,
+                                   BT_HDR *p_buf,
+                                   UINT16 protocol,
+                                   UINT8 *p_src_addr,
+                                   BOOLEAN fw_ext_present);
+
+/*******************************************************************************
+**
+** Function         BNEP_Write
+**
+** Description      This function sends data over a BNEP connection
+**
+** Parameters:      handle       - handle of the connection to write
+**                  p_dest_addr  - BD_ADDR/Ethernet addr of the destination
+**                  p_data       - pointer to data start
+**                  protocol     - protocol type of the packet
+**                  p_src_addr   - (optional) BD_ADDR/ethernet address of the source
+**                                 (should be NULL if it is local BD Addr)
+**                  fw_ext_present - forwarded extensions present
+**
+** Returns:         BNEP_WRONG_HANDLE       - if passed handle is not valid
+**                  BNEP_MTU_EXCEDED        - If the data length is greater than MTU
+**                  BNEP_IGNORE_CMD         - If the packet is filtered out
+**                  BNEP_Q_SIZE_EXCEEDED    - If the Tx Q is full
+**                  BNEP_NO_RESOURCES       - If not able to allocate a buffer
+**                  BNEP_SUCCESS            - If written successfully
+**
+*******************************************************************************/
+extern tBNEP_RESULT  BNEP_Write (UINT16 handle,
+                                 UINT8 *p_dest_addr,
+                                 UINT8 *p_data,
+                                 UINT16 len,
+                                 UINT16 protocol,
+                                 UINT8 *p_src_addr,
+                                 BOOLEAN fw_ext_present);
+
+/*******************************************************************************
+**
+** Function         BNEP_SetProtocolFilters
+**
+** Description      This function sets the protocol filters on peer device
+**
+** Parameters:      handle        - Handle for the connection
+**                  num_filters   - total number of filter ranges
+**                  p_start_array - Array of beginings of all protocol ranges
+**                  p_end_array   - Array of ends of all protocol ranges
+**
+** Returns          BNEP_WRONG_HANDLE           - if the connection handle is not valid
+**                  BNEP_SET_FILTER_FAIL        - if the connection is in wrong state
+**                  BNEP_TOO_MANY_FILTERS       - if too many filters
+**                  BNEP_SUCCESS                - if request sent successfully
+**
+*******************************************************************************/
+extern tBNEP_RESULT BNEP_SetProtocolFilters (UINT16 handle,
+                                             UINT16 num_filters,
+                                             UINT16 *p_start_array,
+                                             UINT16 *p_end_array);
+
+/*******************************************************************************
+**
+** Function         BNEP_SetMulticastFilters
+**
+** Description      This function sets the filters for multicast addresses for BNEP.
+**
+** Parameters:      handle        - Handle for the connection
+**                  num_filters   - total number of filter ranges
+**                  p_start_array - Pointer to sequence of beginings of all
+**                                         multicast address ranges
+**                  p_end_array   - Pointer to sequence of ends of all
+**                                         multicast address ranges
+**
+** Returns          BNEP_WRONG_HANDLE           - if the connection handle is not valid
+**                  BNEP_SET_FILTER_FAIL        - if the connection is in wrong state
+**                  BNEP_TOO_MANY_FILTERS       - if too many filters
+**                  BNEP_SUCCESS                - if request sent successfully
+**
+*******************************************************************************/
+extern tBNEP_RESULT BNEP_SetMulticastFilters (UINT16 handle,
+                                              UINT16 num_filters,
+                                              UINT8 *p_start_array,
+                                              UINT8 *p_end_array);
+
+/*******************************************************************************
+**
+** Function         BNEP_SetTraceLevel
+**
+** Description      This function sets the trace level for BNEP. If called with
+**                  a value of 0xFF, it simply reads the current trace level.
+**
+** Returns          the new (current) trace level
+**
+*******************************************************************************/
+extern UINT8 BNEP_SetTraceLevel (UINT8 new_level);
+
+/*******************************************************************************
+**
+** Function         BNEP_Init
+**
+** Description      This function initializes the BNEP unit. It should be called
+**                  before accessing any other APIs to initialize the control block
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BNEP_Init (void);
+
+/*******************************************************************************
+**
+** Function         BNEP_GetStatus
+**
+** Description      This function gets the status information for BNEP connection
+**
+** Returns          BNEP_SUCCESS            - if the status is available
+**                  BNEP_NO_RESOURCES       - if no structure is passed for output
+**                  BNEP_WRONG_HANDLE       - if the handle is invalid
+**                  BNEP_WRONG_STATE        - if not in connected state
+**
+*******************************************************************************/
+extern tBNEP_RESULT BNEP_GetStatus (UINT16 handle, tBNEP_STATUS *p_status);
+
+
+
+#ifdef __cplusplus
+}
+#endif
+
+
+#endif
diff --git a/rtkbt/code/bt/stack/include/bt_types.h b/rtkbt/code/bt/stack/include/bt_types.h
new file mode 100755
index 0000000..34447b6
--- /dev/null
+++ b/rtkbt/code/bt/stack/include/bt_types.h
@@ -0,0 +1,794 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#ifndef BT_TYPES_H
+#define BT_TYPES_H
+
+#include <stdint.h>
+#include <stdbool.h>
+
+#ifndef FALSE
+#  define FALSE  false
+#endif
+
+#ifndef TRUE
+#  define TRUE   true
+#endif
+
+typedef uint8_t UINT8;
+typedef uint16_t UINT16;
+typedef uint32_t UINT32;
+typedef uint64_t UINT64;
+
+typedef int8_t INT8;
+typedef int16_t INT16;
+typedef int32_t INT32;
+typedef bool BOOLEAN;
+
+#ifdef __arm
+#  define PACKED  __packed
+#  define INLINE  __inline
+#else
+#  define PACKED
+#  define INLINE
+#endif
+
+/* READ WELL !!
+**
+** This section defines global events. These are events that cross layers.
+** Any event that passes between layers MUST be one of these events. Tasks
+** can use their own events internally, but a FUNDAMENTAL design issue is
+** that global events MUST be one of these events defined below.
+**
+** The convention used is the the event name contains the layer that the
+** event is going to.
+*/
+#define BT_EVT_MASK                 0xFF00
+#define BT_SUB_EVT_MASK             0x00FF
+                                                /* To Bluetooth Upper Layers        */
+                                                /************************************/
+#define BT_EVT_TO_BTU_L2C_EVT       0x0900      /* L2CAP event */
+#define BT_EVT_TO_BTU_HCI_EVT       0x1000      /* HCI Event                        */
+#define BT_EVT_TO_BTU_HCI_BR_EDR_EVT (0x0000 | BT_EVT_TO_BTU_HCI_EVT)      /* event from BR/EDR controller */
+#define BT_EVT_TO_BTU_HCI_AMP1_EVT   (0x0001 | BT_EVT_TO_BTU_HCI_EVT)      /* event from local AMP 1 controller */
+#define BT_EVT_TO_BTU_HCI_AMP2_EVT   (0x0002 | BT_EVT_TO_BTU_HCI_EVT)      /* event from local AMP 2 controller */
+#define BT_EVT_TO_BTU_HCI_AMP3_EVT   (0x0003 | BT_EVT_TO_BTU_HCI_EVT)      /* event from local AMP 3 controller */
+
+#define BT_EVT_TO_BTU_HCI_ACL       0x1100      /* ACL Data from HCI                */
+#define BT_EVT_TO_BTU_HCI_SCO       0x1200      /* SCO Data from HCI                */
+#define BT_EVT_TO_BTU_HCIT_ERR      0x1300      /* HCI Transport Error              */
+
+#define BT_EVT_TO_BTU_SP_EVT        0x1400      /* Serial Port Event                */
+#define BT_EVT_TO_BTU_SP_DATA       0x1500      /* Serial Port Data                 */
+
+#define BT_EVT_TO_BTU_HCI_CMD       0x1600      /* HCI command from upper layer     */
+
+
+#define BT_EVT_TO_BTU_L2C_SEG_XMIT  0x1900      /* L2CAP segment(s) transmitted     */
+
+#define BT_EVT_PROXY_INCOMING_MSG   0x1A00      /* BlueStackTester event: incoming message from target */
+
+#define BT_EVT_BTSIM                0x1B00      /* Insight BTSIM event */
+#define BT_EVT_BTISE                0x1C00      /* Insight Script Engine event */
+
+                                                /* To LM                            */
+                                                /************************************/
+#define BT_EVT_TO_LM_HCI_CMD        0x2000      /* HCI Command                      */
+#define BT_EVT_TO_LM_HCI_ACL        0x2100      /* HCI ACL Data                     */
+#define BT_EVT_TO_LM_HCI_SCO        0x2200      /* HCI SCO Data                     */
+#define BT_EVT_TO_LM_HCIT_ERR       0x2300      /* HCI Transport Error              */
+#define BT_EVT_TO_LM_LC_EVT         0x2400      /* LC event                         */
+#define BT_EVT_TO_LM_LC_LMP         0x2500      /* LC Received LMP command frame    */
+#define BT_EVT_TO_LM_LC_ACL         0x2600      /* LC Received ACL data             */
+#define BT_EVT_TO_LM_LC_SCO         0x2700      /* LC Received SCO data  (not used) */
+#define BT_EVT_TO_LM_LC_ACL_TX      0x2800      /* LMP data transmit complete       */
+#define BT_EVT_TO_LM_LC_LMPC_TX     0x2900      /* LMP Command transmit complete    */
+#define BT_EVT_TO_LM_LOCAL_ACL_LB   0x2a00      /* Data to be locally loopbacked    */
+#define BT_EVT_TO_LM_HCI_ACL_ACK    0x2b00      /* HCI ACL Data ack      (not used) */
+#define BT_EVT_TO_LM_DIAG           0x2c00      /* LM Diagnostics commands          */
+
+
+#define BT_EVT_TO_BTM_CMDS          0x2f00
+#define BT_EVT_TO_BTM_PM_MDCHG_EVT (0x0001 | BT_EVT_TO_BTM_CMDS)
+
+#define BT_EVT_TO_TCS_CMDS          0x3000
+
+#define BT_EVT_TO_CTP_CMDS          0x3300
+
+/* ftp events */
+#define BT_EVT_TO_FTP_SRVR_CMDS     0x3600
+#define BT_EVT_TO_FTP_CLNT_CMDS     0x3700
+
+#define BT_EVT_TO_BTU_SAP           0x3800       /* SIM Access Profile events */
+
+/* opp events */
+#define BT_EVT_TO_OPP_SRVR_CMDS     0x3900
+#define BT_EVT_TO_OPP_CLNT_CMDS     0x3a00
+
+/* gap events */
+#define BT_EVT_TO_GAP_MSG           0x3b00
+
+/* for NFC                          */
+                                                /************************************/
+#define BT_EVT_TO_NFC_NCI           0x4000      /* NCI Command, Notification or Data*/
+#define BT_EVT_TO_NFC_INIT          0x4100      /* Initialization message */
+#define BT_EVT_TO_NCI_LP            0x4200      /* Low power */
+#define BT_EVT_TO_NFC_ERR           0x4300      /* Error notification to NFC Task */
+
+#define BT_EVT_TO_NFCCSIM_NCI       0x4a00      /* events to NFCC simulation (NCI packets) */
+
+/* HCISU Events */
+
+#define BT_EVT_HCISU                0x5000
+
+#define BT_EVT_TO_HCISU_RECONFIG_EVT            (0x0001 | BT_EVT_HCISU)
+#define BT_EVT_TO_HCISU_UPDATE_BAUDRATE_EVT     (0x0002 | BT_EVT_HCISU)
+#define BT_EVT_TO_HCISU_LP_ENABLE_EVT           (0x0003 | BT_EVT_HCISU)
+#define BT_EVT_TO_HCISU_LP_DISABLE_EVT          (0x0004 | BT_EVT_HCISU)
+#define BT_EVT_TO_HCISU_LP_APP_SLEEPING_EVT     (0x0005 | BT_EVT_HCISU)
+#define BT_EVT_TO_HCISU_LP_ALLOW_BT_SLEEP_EVT   (0x0006 | BT_EVT_HCISU)
+#define BT_EVT_TO_HCISU_LP_WAKEUP_HOST_EVT      (0x0007 | BT_EVT_HCISU)
+#define BT_EVT_TO_HCISU_LP_RCV_H4IBSS_EVT       (0x0008 | BT_EVT_HCISU)
+#define BT_EVT_TO_HCISU_H5_RESET_EVT            (0x0009 | BT_EVT_HCISU)
+#define BT_EVT_HCISU_START_QUICK_TIMER          (0x000a | BT_EVT_HCISU)
+
+#define BT_EVT_DATA_TO_AMP_1        0x5100
+#define BT_EVT_DATA_TO_AMP_15       0x5f00
+
+/* HSP Events */
+
+#define BT_EVT_BTU_HSP2             0x6000
+
+#define BT_EVT_TO_BTU_HSP2_EVT     (0x0001 | BT_EVT_BTU_HSP2)
+
+/* BPP Events */
+#define BT_EVT_TO_BPP_PR_CMDS       0x6100      /* Printer Events */
+#define BT_EVT_TO_BPP_SND_CMDS      0x6200      /* BPP Sender Events */
+
+/* BIP Events */
+#define BT_EVT_TO_BIP_CMDS          0x6300
+
+/* HCRP Events */
+
+#define BT_EVT_BTU_HCRP             0x7000
+
+#define BT_EVT_TO_BTU_HCRP_EVT     (0x0001 | BT_EVT_BTU_HCRP)
+#define BT_EVT_TO_BTU_HCRPM_EVT    (0x0002 | BT_EVT_BTU_HCRP)
+
+
+#define BT_EVT_BTU_HFP              0x8000
+#define BT_EVT_TO_BTU_HFP_EVT      (0x0001 | BT_EVT_BTU_HFP)
+
+#define BT_EVT_BTU_IPC_EVT          0x9000
+#define BT_EVT_BTU_IPC_LOGMSG_EVT  (0x0000 | BT_EVT_BTU_IPC_EVT)
+#define BT_EVT_BTU_IPC_ACL_EVT     (0x0001 | BT_EVT_BTU_IPC_EVT)
+#define BT_EVT_BTU_IPC_BTU_EVT     (0x0002 | BT_EVT_BTU_IPC_EVT)
+#define BT_EVT_BTU_IPC_L2C_EVT     (0x0003 | BT_EVT_BTU_IPC_EVT)
+#define BT_EVT_BTU_IPC_L2C_MSG_EVT (0x0004 | BT_EVT_BTU_IPC_EVT)
+#define BT_EVT_BTU_IPC_BTM_EVT     (0x0005 | BT_EVT_BTU_IPC_EVT)
+#define BT_EVT_BTU_IPC_AVDT_EVT    (0x0006 | BT_EVT_BTU_IPC_EVT)
+#define BT_EVT_BTU_IPC_SLIP_EVT    (0x0007 | BT_EVT_BTU_IPC_EVT)
+#define BT_EVT_BTU_IPC_MGMT_EVT    (0x0008 | BT_EVT_BTU_IPC_EVT)
+#define BT_EVT_BTU_IPC_BTTRC_EVT   (0x0009 | BT_EVT_BTU_IPC_EVT)
+#define BT_EVT_BTU_IPC_BURST_EVT   (0x000A | BT_EVT_BTU_IPC_EVT)
+
+
+/* BTIF Events */
+#define BT_EVT_BTIF                 0xA000
+#define BT_EVT_CONTEXT_SWITCH_EVT  (0x0001 | BT_EVT_BTIF)
+
+/* Define the header of each buffer used in the Bluetooth stack.
+*/
+typedef struct
+{
+    uint16_t          event;
+    uint16_t          len;
+    uint16_t          offset;
+    uint16_t          layer_specific;
+    uint8_t           data[];
+} BT_HDR;
+
+#define BT_HDR_SIZE (sizeof (BT_HDR))
+
+#define BT_PSM_SDP                      0x0001
+#define BT_PSM_RFCOMM                   0x0003
+#define BT_PSM_TCS                      0x0005
+#define BT_PSM_CTP                      0x0007
+#define BT_PSM_BNEP                     0x000F
+#define BT_PSM_HIDC                     0x0011
+#define BT_PSM_HIDI                     0x0013
+#define BT_PSM_UPNP                     0x0015
+#define BT_PSM_AVCTP                    0x0017
+#define BT_PSM_AVDTP                    0x0019
+#define BT_PSM_AVCTP_13                 0x001B /* Advanced Control - Browsing */
+#define BT_PSM_UDI_CP                   0x001D /* Unrestricted Digital Information Profile C-Plane  */
+#define BT_PSM_ATT                      0x001F /* Attribute Protocol  */
+
+/* These macros extract the HCI opcodes from a buffer
+*/
+#define HCI_GET_CMD_HDR_OPCODE(p)    (UINT16)((*((UINT8 *)((p) + 1) + p->offset) + \
+                                              (*((UINT8 *)((p) + 1) + p->offset + 1) << 8)))
+#define HCI_GET_CMD_HDR_PARAM_LEN(p) (UINT8)  (*((UINT8 *)((p) + 1) + p->offset + 2))
+
+#define HCI_GET_EVT_HDR_OPCODE(p)    (UINT8)(*((UINT8 *)((p) + 1) + p->offset))
+#define HCI_GET_EVT_HDR_PARAM_LEN(p) (UINT8)  (*((UINT8 *)((p) + 1) + p->offset + 1))
+
+
+/********************************************************************************
+** Macros to get and put bytes to and from a stream (Little Endian format).
+*/
+#define UINT64_TO_BE_STREAM(p, u64) {*(p)++ = (UINT8)((u64) >> 56);  *(p)++ = (UINT8)((u64) >> 48); *(p)++ = (UINT8)((u64) >> 40); *(p)++ = (UINT8)((u64) >> 32); \
+                                     *(p)++ = (UINT8)((u64) >> 24);  *(p)++ = (UINT8)((u64) >> 16); *(p)++ = (UINT8)((u64) >> 8); *(p)++ = (UINT8)(u64); }
+#define UINT32_TO_STREAM(p, u32) {*(p)++ = (UINT8)(u32); *(p)++ = (UINT8)((u32) >> 8); *(p)++ = (UINT8)((u32) >> 16); *(p)++ = (UINT8)((u32) >> 24);}
+#define UINT24_TO_STREAM(p, u24) {*(p)++ = (UINT8)(u24); *(p)++ = (UINT8)((u24) >> 8); *(p)++ = (UINT8)((u24) >> 16);}
+#define UINT16_TO_STREAM(p, u16) {*(p)++ = (UINT8)(u16); *(p)++ = (UINT8)((u16) >> 8);}
+#define UINT8_TO_STREAM(p, u8)   {*(p)++ = (UINT8)(u8);}
+#define INT8_TO_STREAM(p, u8)    {*(p)++ = (INT8)(u8);}
+#define ARRAY32_TO_STREAM(p, a)  {register int ijk; for (ijk = 0; ijk < 32;           ijk++) *(p)++ = (UINT8) a[31 - ijk];}
+#define ARRAY16_TO_STREAM(p, a)  {register int ijk; for (ijk = 0; ijk < 16;           ijk++) *(p)++ = (UINT8) a[15 - ijk];}
+#define ARRAY8_TO_STREAM(p, a)   {register int ijk; for (ijk = 0; ijk < 8;            ijk++) *(p)++ = (UINT8) a[7 - ijk];}
+#define BDADDR_TO_STREAM(p, a)   {register int ijk; for (ijk = 0; ijk < BD_ADDR_LEN;  ijk++) *(p)++ = (UINT8) a[BD_ADDR_LEN - 1 - ijk];}
+#define LAP_TO_STREAM(p, a)      {register int ijk; for (ijk = 0; ijk < LAP_LEN;      ijk++) *(p)++ = (UINT8) a[LAP_LEN - 1 - ijk];}
+#define DEVCLASS_TO_STREAM(p, a) {register int ijk; for (ijk = 0; ijk < DEV_CLASS_LEN;ijk++) *(p)++ = (UINT8) a[DEV_CLASS_LEN - 1 - ijk];}
+#define ARRAY_TO_STREAM(p, a, len) {register int ijk; for (ijk = 0; ijk < len;        ijk++) *(p)++ = (UINT8) a[ijk];}
+#define REVERSE_ARRAY_TO_STREAM(p, a, len)  {register int ijk; for (ijk = 0; ijk < len; ijk++) *(p)++ = (UINT8) a[len - 1 - ijk];}
+
+#define STREAM_TO_UINT8(u8, p)   {u8 = (UINT8)(*(p)); (p) += 1;}
+#define STREAM_TO_UINT16(u16, p) {u16 = ((UINT16)(*(p)) + (((UINT16)(*((p) + 1))) << 8)); (p) += 2;}
+#define STREAM_TO_UINT24(u32, p) {u32 = (((UINT32)(*(p))) + ((((UINT32)(*((p) + 1)))) << 8) + ((((UINT32)(*((p) + 2)))) << 16) ); (p) += 3;}
+#define STREAM_TO_UINT32(u32, p) {u32 = (((UINT32)(*(p))) + ((((UINT32)(*((p) + 1)))) << 8) + ((((UINT32)(*((p) + 2)))) << 16) + ((((UINT32)(*((p) + 3)))) << 24)); (p) += 4;}
+#define STREAM_TO_BDADDR(a, p)   {register int ijk; register UINT8 *pbda = (UINT8 *)a + BD_ADDR_LEN - 1; for (ijk = 0; ijk < BD_ADDR_LEN; ijk++) *pbda-- = *p++;}
+#define STREAM_TO_ARRAY32(a, p)  {register int ijk; register UINT8 *_pa = (UINT8 *)a + 31; for (ijk = 0; ijk < 32; ijk++) *_pa-- = *p++;}
+#define STREAM_TO_ARRAY16(a, p)  {register int ijk; register UINT8 *_pa = (UINT8 *)a + 15; for (ijk = 0; ijk < 16; ijk++) *_pa-- = *p++;}
+#define STREAM_TO_ARRAY8(a, p)   {register int ijk; register UINT8 *_pa = (UINT8 *)a + 7; for (ijk = 0; ijk < 8; ijk++) *_pa-- = *p++;}
+#define STREAM_TO_DEVCLASS(a, p) {register int ijk; register UINT8 *_pa = (UINT8 *)a + DEV_CLASS_LEN - 1; for (ijk = 0; ijk < DEV_CLASS_LEN; ijk++) *_pa-- = *p++;}
+#define STREAM_TO_LAP(a, p)      {register int ijk; register UINT8 *plap = (UINT8 *)a + LAP_LEN - 1; for (ijk = 0; ijk < LAP_LEN; ijk++) *plap-- = *p++;}
+#define STREAM_TO_ARRAY(a, p, len) {register int ijk; for (ijk = 0; ijk < len; ijk++) ((UINT8 *) a)[ijk] = *p++;}
+#define REVERSE_STREAM_TO_ARRAY(a, p, len) {register int ijk; register UINT8 *_pa = (UINT8 *)a + len - 1; for (ijk = 0; ijk < len; ijk++) *_pa-- = *p++;}
+
+#define STREAM_SKIP_UINT8(p)  do { (p) += 1; } while (0)
+#define STREAM_SKIP_UINT16(p) do { (p) += 2; } while (0)
+
+/********************************************************************************
+** Macros to get and put bytes to and from a field (Little Endian format).
+** These are the same as to stream, except the pointer is not incremented.
+*/
+#define UINT32_TO_FIELD(p, u32) {*(UINT8 *)(p) = (UINT8)(u32); *((UINT8 *)(p)+1) = (UINT8)((u32) >> 8); *((UINT8 *)(p)+2) = (UINT8)((u32) >> 16); *((UINT8 *)(p)+3) = (UINT8)((u32) >> 24);}
+#define UINT24_TO_FIELD(p, u24) {*(UINT8 *)(p) = (UINT8)(u24); *((UINT8 *)(p)+1) = (UINT8)((u24) >> 8); *((UINT8 *)(p)+2) = (UINT8)((u24) >> 16);}
+#define UINT16_TO_FIELD(p, u16) {*(UINT8 *)(p) = (UINT8)(u16); *((UINT8 *)(p)+1) = (UINT8)((u16) >> 8);}
+#define UINT8_TO_FIELD(p, u8)   {*(UINT8 *)(p) = (UINT8)(u8);}
+
+
+/********************************************************************************
+** Macros to get and put bytes to and from a stream (Big Endian format)
+*/
+#define UINT32_TO_BE_STREAM(p, u32) {*(p)++ = (UINT8)((u32) >> 24);  *(p)++ = (UINT8)((u32) >> 16); *(p)++ = (UINT8)((u32) >> 8); *(p)++ = (UINT8)(u32); }
+#define UINT24_TO_BE_STREAM(p, u24) {*(p)++ = (UINT8)((u24) >> 16); *(p)++ = (UINT8)((u24) >> 8); *(p)++ = (UINT8)(u24);}
+#define UINT16_TO_BE_STREAM(p, u16) {*(p)++ = (UINT8)((u16) >> 8); *(p)++ = (UINT8)(u16);}
+#define UINT8_TO_BE_STREAM(p, u8)   {*(p)++ = (UINT8)(u8);}
+#define ARRAY_TO_BE_STREAM(p, a, len) {register int ijk; for (ijk = 0; ijk < len; ijk++) *(p)++ = (UINT8) a[ijk];}
+#define ARRAY_TO_BE_STREAM_REVERSE(p, a, len) {register int ijk; for (ijk = 0; ijk < len; ijk++) *(p)++ = (UINT8) a[len - ijk - 1];}
+
+#define BE_STREAM_TO_UINT8(u8, p)   {u8 = (UINT8)(*(p)); (p) += 1;}
+#define BE_STREAM_TO_UINT16(u16, p) {u16 = (UINT16)(((UINT16)(*(p)) << 8) + (UINT16)(*((p) + 1))); (p) += 2;}
+#define BE_STREAM_TO_UINT24(u32, p) {u32 = (((UINT32)(*((p) + 2))) + ((UINT32)(*((p) + 1)) << 8) + ((UINT32)(*(p)) << 16)); (p) += 3;}
+#define BE_STREAM_TO_UINT32(u32, p) {u32 = ((UINT32)(*((p) + 3)) + ((UINT32)(*((p) + 2)) << 8) + ((UINT32)(*((p) + 1)) << 16) + ((UINT32)(*(p)) << 24)); (p) += 4;}
+#define BE_STREAM_TO_UINT64(u64, p) {u64 = ((UINT64)(*((p) + 7)) + ((UINT64)(*((p) + 6)) << 8) + \
+                                    ((UINT64)(*((p) + 5)) << 16) + ((UINT64)(*((p) + 4)) << 24) + \
+                                    ((UINT64)(*((p) + 3)) << 32) + ((UINT64)(*((p) + 2)) << 40) + \
+                                    ((UINT64)(*((p) + 1)) << 48) + ((UINT64)(*(p)) << 56)); \
+                                    (p) += 8;}
+#define BE_STREAM_TO_ARRAY(p, a, len) {register int ijk; for (ijk = 0; ijk < len; ijk++) ((UINT8 *) a)[ijk] = *p++;}
+
+
+/********************************************************************************
+** Macros to get and put bytes to and from a field (Big Endian format).
+** These are the same as to stream, except the pointer is not incremented.
+*/
+#define UINT32_TO_BE_FIELD(p, u32) {*(UINT8 *)(p) = (UINT8)((u32) >> 24);  *((UINT8 *)(p)+1) = (UINT8)((u32) >> 16); *((UINT8 *)(p)+2) = (UINT8)((u32) >> 8); *((UINT8 *)(p)+3) = (UINT8)(u32); }
+#define UINT24_TO_BE_FIELD(p, u24) {*(UINT8 *)(p) = (UINT8)((u24) >> 16); *((UINT8 *)(p)+1) = (UINT8)((u24) >> 8); *((UINT8 *)(p)+2) = (UINT8)(u24);}
+#define UINT16_TO_BE_FIELD(p, u16) {*(UINT8 *)(p) = (UINT8)((u16) >> 8); *((UINT8 *)(p)+1) = (UINT8)(u16);}
+#define UINT8_TO_BE_FIELD(p, u8)   {*(UINT8 *)(p) = (UINT8)(u8);}
+
+
+/* Common Bluetooth field definitions */
+#define BD_ADDR_LEN     6                   /* Device address length */
+typedef UINT8 BD_ADDR[BD_ADDR_LEN];         /* Device address */
+typedef UINT8 *BD_ADDR_PTR;                 /* Pointer to Device Address */
+
+#define AMP_KEY_TYPE_GAMP       0
+#define AMP_KEY_TYPE_WIFI       1
+#define AMP_KEY_TYPE_UWB        2
+typedef UINT8 tAMP_KEY_TYPE;
+
+#define BT_OCTET8_LEN    8
+typedef UINT8 BT_OCTET8[BT_OCTET8_LEN];   /* octet array: size 16 */
+
+#define LINK_KEY_LEN    16
+typedef UINT8 LINK_KEY[LINK_KEY_LEN];       /* Link Key */
+
+#define AMP_LINK_KEY_LEN        32
+typedef UINT8 AMP_LINK_KEY[AMP_LINK_KEY_LEN];   /* Dedicated AMP and GAMP Link Keys */
+
+#define BT_OCTET16_LEN    16
+typedef UINT8 BT_OCTET16[BT_OCTET16_LEN];   /* octet array: size 16 */
+
+#define PIN_CODE_LEN    16
+typedef UINT8 PIN_CODE[PIN_CODE_LEN];       /* Pin Code (upto 128 bits) MSB is 0 */
+typedef UINT8 *PIN_CODE_PTR;                /* Pointer to Pin Code */
+
+#define BT_OCTET32_LEN    32
+typedef UINT8 BT_OCTET32[BT_OCTET32_LEN];   /* octet array: size 32 */
+
+#define DEV_CLASS_LEN   3
+typedef UINT8 DEV_CLASS[DEV_CLASS_LEN];     /* Device class */
+typedef UINT8 *DEV_CLASS_PTR;               /* Pointer to Device class */
+
+#define EXT_INQ_RESP_LEN   3
+typedef UINT8 EXT_INQ_RESP[EXT_INQ_RESP_LEN];/* Extended Inquiry Response */
+typedef UINT8 *EXT_INQ_RESP_PTR;             /* Pointer to Extended Inquiry Response */
+
+#define BD_NAME_LEN     248
+typedef UINT8 BD_NAME[BD_NAME_LEN + 1];         /* Device name */
+typedef UINT8 *BD_NAME_PTR;                 /* Pointer to Device name */
+
+#define BD_FEATURES_LEN 8
+typedef UINT8 BD_FEATURES[BD_FEATURES_LEN]; /* LMP features supported by device */
+
+#define BT_EVENT_MASK_LEN  8
+typedef UINT8 BT_EVENT_MASK[BT_EVENT_MASK_LEN];   /* Event Mask */
+
+#define LAP_LEN         3
+typedef UINT8 LAP[LAP_LEN];                 /* IAC as passed to Inquiry (LAP) */
+typedef UINT8 INQ_LAP[LAP_LEN];             /* IAC as passed to Inquiry (LAP) */
+
+#define RAND_NUM_LEN    16
+typedef UINT8 RAND_NUM[RAND_NUM_LEN];
+
+#define ACO_LEN         12
+typedef UINT8 ACO[ACO_LEN];                 /* Authenticated ciphering offset */
+
+#define COF_LEN         12
+typedef UINT8 COF[COF_LEN];                 /* ciphering offset number */
+
+typedef struct {
+    UINT8               qos_flags;          /* TBD */
+    UINT8               service_type;       /* see below */
+    UINT32              token_rate;         /* bytes/second */
+    UINT32              token_bucket_size;  /* bytes */
+    UINT32              peak_bandwidth;     /* bytes/second */
+    UINT32              latency;            /* microseconds */
+    UINT32              delay_variation;    /* microseconds */
+} FLOW_SPEC;
+
+/* Values for service_type */
+#define NO_TRAFFIC      0
+#define BEST_EFFORT     1
+#define GUARANTEED      2
+
+/* Service class of the CoD */
+#define SERV_CLASS_NETWORKING               (1 << 1)
+#define SERV_CLASS_RENDERING                (1 << 2)
+#define SERV_CLASS_CAPTURING                (1 << 3)
+#define SERV_CLASS_OBJECT_TRANSFER          (1 << 4)
+#define SERV_CLASS_OBJECT_AUDIO             (1 << 5)
+#define SERV_CLASS_OBJECT_TELEPHONY         (1 << 6)
+#define SERV_CLASS_OBJECT_INFORMATION       (1 << 7)
+
+/* Second byte */
+#define SERV_CLASS_LIMITED_DISC_MODE        (0x20)
+
+/* Field size definitions. Note that byte lengths are rounded up. */
+#define ACCESS_CODE_BIT_LEN             72
+#define ACCESS_CODE_BYTE_LEN            9
+#define SHORTENED_ACCESS_CODE_BIT_LEN   68
+
+typedef UINT8 ACCESS_CODE[ACCESS_CODE_BYTE_LEN];
+
+#define SYNTH_TX                1           /* want synth code to TRANSMIT at this freq */
+#define SYNTH_RX                2           /* want synth code to RECEIVE at this freq */
+
+#define SYNC_REPS 1             /* repeats of sync word transmitted to start of burst */
+
+#define BT_1SEC_TIMEOUT_MS              (1 * 1000)      /* 1 second */
+
+/* Maximum UUID size - 16 bytes, and structure to hold any type of UUID. */
+#define MAX_UUID_SIZE              16
+typedef struct
+{
+#define LEN_UUID_16     2
+#define LEN_UUID_32     4
+#define LEN_UUID_128    16
+
+    UINT16          len;
+
+    union
+    {
+        UINT16      uuid16;
+        UINT32      uuid32;
+        UINT8       uuid128[MAX_UUID_SIZE];
+    } uu;
+
+} tBT_UUID;
+
+#define BT_EIR_FLAGS_TYPE                       0x01
+#define BT_EIR_MORE_16BITS_UUID_TYPE            0x02
+#define BT_EIR_COMPLETE_16BITS_UUID_TYPE        0x03
+#define BT_EIR_MORE_32BITS_UUID_TYPE            0x04
+#define BT_EIR_COMPLETE_32BITS_UUID_TYPE        0x05
+#define BT_EIR_MORE_128BITS_UUID_TYPE           0x06
+#define BT_EIR_COMPLETE_128BITS_UUID_TYPE       0x07
+#define BT_EIR_SHORTENED_LOCAL_NAME_TYPE        0x08
+#define BT_EIR_COMPLETE_LOCAL_NAME_TYPE         0x09
+#define BT_EIR_TX_POWER_LEVEL_TYPE              0x0A
+#define BT_EIR_OOB_BD_ADDR_TYPE                 0x0C
+#define BT_EIR_OOB_COD_TYPE                     0x0D
+#define BT_EIR_OOB_SSP_HASH_C_TYPE              0x0E
+#define BT_EIR_OOB_SSP_RAND_R_TYPE              0x0F
+#define BT_EIR_SERVICE_DATA_TYPE                0x16
+#define BT_EIR_SERVICE_DATA_16BITS_UUID_TYPE    0x16
+#define BT_EIR_SERVICE_DATA_32BITS_UUID_TYPE    0x20
+#define BT_EIR_SERVICE_DATA_128BITS_UUID_TYPE   0x21
+#define BT_EIR_MANUFACTURER_SPECIFIC_TYPE       0xFF
+
+#define BT_OOB_COD_SIZE            3
+#define BT_OOB_HASH_C_SIZE         16
+#define BT_OOB_RAND_R_SIZE         16
+
+/* Broadcom proprietary UUIDs and reserved PSMs
+**
+** The lowest 4 bytes byte of the UUID or GUID depends on the feature. Typically,
+** the value of those bytes will be the PSM or SCN, but it is up to the features.
+*/
+#define BRCM_PROPRIETARY_UUID_BASE  0xDA, 0x23, 0x41, 0x02, 0xA3, 0xBB, 0xC1, 0x71, 0xBA, 0x09, 0x6f, 0x21
+#define BRCM_PROPRIETARY_GUID_BASE  0xda23, 0x4102, 0xa3, 0xbb, 0xc1, 0x71, 0xba, 0x09, 0x6f, 0x21
+
+/* We will not allocate a PSM in the reserved range to 3rd party apps
+*/
+#define BRCM_RESERVED_PSM_START	    0x5AE1
+#define BRCM_RESERVED_PSM_END	    0x5AFF
+
+#define BRCM_UTILITY_SERVICE_PSM    0x5AE1
+#define BRCM_MATCHER_PSM            0x5AE3
+
+/* Connection statistics
+*/
+
+/* Structure to hold connection stats */
+#ifndef BT_CONN_STATS_DEFINED
+#define BT_CONN_STATS_DEFINED
+
+/* These bits are used in the bIsConnected field */
+#define BT_CONNECTED_USING_BREDR   1
+#define BT_CONNECTED_USING_AMP     2
+
+typedef struct
+{
+    UINT32   is_connected;
+    INT32    rssi;
+    UINT32   bytes_sent;
+    UINT32   bytes_rcvd;
+    UINT32   duration;
+} tBT_CONN_STATS;
+
+#endif
+
+
+/*****************************************************************************
+**                          Low Energy definitions
+**
+** Address types
+*/
+#define BLE_ADDR_PUBLIC         0x00
+#define BLE_ADDR_RANDOM         0x01
+#define BLE_ADDR_PUBLIC_ID      0x02
+#define BLE_ADDR_RANDOM_ID      0x03
+typedef UINT8 tBLE_ADDR_TYPE;
+#define BLE_ADDR_TYPE_MASK      (BLE_ADDR_RANDOM | BLE_ADDR_PUBLIC)
+
+#define BT_TRANSPORT_INVALID   0
+#define BT_TRANSPORT_BR_EDR    1
+#define BT_TRANSPORT_LE        2
+typedef UINT8 tBT_TRANSPORT;
+
+#define BLE_ADDR_IS_STATIC(x)   ((x[0] & 0xC0) == 0xC0)
+
+typedef struct
+{
+    tBLE_ADDR_TYPE      type;
+    BD_ADDR             bda;
+} tBLE_BD_ADDR;
+
+/* Device Types
+*/
+#define BT_DEVICE_TYPE_BREDR   0x01
+#define BT_DEVICE_TYPE_BLE     0x02
+#define BT_DEVICE_TYPE_DUMO    0x03
+typedef UINT8 tBT_DEVICE_TYPE;
+/*****************************************************************************/
+
+
+/* Define trace levels */
+#define BT_TRACE_LEVEL_NONE    0          /* No trace messages to be generated    */
+#define BT_TRACE_LEVEL_ERROR   1          /* Error condition trace messages       */
+#define BT_TRACE_LEVEL_WARNING 2          /* Warning condition trace messages     */
+#define BT_TRACE_LEVEL_API     3          /* API traces                           */
+#define BT_TRACE_LEVEL_EVENT   4          /* Debug messages for events            */
+#define BT_TRACE_LEVEL_DEBUG   5          /* Full debug messages                  */
+#define BT_TRACE_LEVEL_VERBOSE 6          /* Verbose debug messages               */
+
+#define MAX_TRACE_LEVEL        6
+
+
+/* Define New Trace Type Definition */
+/* TRACE_CTRL_TYPE                  0x^^000000*/
+#define TRACE_CTRL_MASK             0xff000000
+#define TRACE_GET_CTRL(x)           ((((UINT32)(x)) & TRACE_CTRL_MASK) >> 24)
+
+#define TRACE_CTRL_GENERAL          0x00000000
+#define TRACE_CTRL_STR_RESOURCE     0x01000000
+#define TRACE_CTRL_SEQ_FLOW         0x02000000
+#define TRACE_CTRL_MAX_NUM          3
+
+/* LAYER SPECIFIC                   0x00^^0000*/
+#define TRACE_LAYER_MASK            0x00ff0000
+#define TRACE_GET_LAYER(x)          ((((UINT32)(x)) & TRACE_LAYER_MASK) >> 16)
+
+#define TRACE_LAYER_NONE            0x00000000
+#define TRACE_LAYER_USB             0x00010000
+#define TRACE_LAYER_SERIAL          0x00020000
+#define TRACE_LAYER_SOCKET          0x00030000
+#define TRACE_LAYER_RS232           0x00040000
+#define TRACE_LAYER_TRANS_MAX_NUM   5
+#define TRACE_LAYER_TRANS_ALL       0x007f0000
+#define TRACE_LAYER_LC              0x00050000
+#define TRACE_LAYER_LM              0x00060000
+#define TRACE_LAYER_HCI             0x00070000
+#define TRACE_LAYER_L2CAP           0x00080000
+#define TRACE_LAYER_RFCOMM          0x00090000
+#define TRACE_LAYER_SDP             0x000a0000
+#define TRACE_LAYER_TCS             0x000b0000
+#define TRACE_LAYER_OBEX            0x000c0000
+#define TRACE_LAYER_BTM             0x000d0000
+#define TRACE_LAYER_GAP             0x000e0000
+#define TRACE_LAYER_ICP             0x00110000
+#define TRACE_LAYER_HSP2            0x00120000
+#define TRACE_LAYER_SPP             0x00130000
+#define TRACE_LAYER_CTP             0x00140000
+#define TRACE_LAYER_BPP             0x00150000
+#define TRACE_LAYER_HCRP            0x00160000
+#define TRACE_LAYER_FTP             0x00170000
+#define TRACE_LAYER_OPP             0x00180000
+#define TRACE_LAYER_BTU             0x00190000
+#define TRACE_LAYER_GKI             0x001a0000          /* OBSOLETED */
+#define TRACE_LAYER_BNEP            0x001b0000
+#define TRACE_LAYER_PAN             0x001c0000
+#define TRACE_LAYER_HFP             0x001d0000
+#define TRACE_LAYER_HID             0x001e0000
+#define TRACE_LAYER_BIP             0x001f0000
+#define TRACE_LAYER_AVP             0x00200000
+#define TRACE_LAYER_A2D             0x00210000
+#define TRACE_LAYER_SAP             0x00220000
+#define TRACE_LAYER_AMP             0x00230000
+#define TRACE_LAYER_MCA             0x00240000
+#define TRACE_LAYER_ATT             0x00250000
+#define TRACE_LAYER_SMP             0x00260000
+#define TRACE_LAYER_NFC             0x00270000
+#define TRACE_LAYER_NCI             0x00280000
+#define TRACE_LAYER_LLCP            0x00290000
+#define TRACE_LAYER_NDEF            0x002a0000
+#define TRACE_LAYER_RW              0x002b0000
+#define TRACE_LAYER_CE              0x002c0000
+#define TRACE_LAYER_P2P             0x002d0000
+#define TRACE_LAYER_SNEP            0x002e0000
+#define TRACE_LAYER_CHO             0x002f0000
+#define TRACE_LAYER_NFA             0x00300000
+
+#define TRACE_LAYER_MAX_NUM         0x0031
+
+
+/* TRACE_ORIGINATOR                 0x0000^^00*/
+#define TRACE_ORG_MASK              0x0000ff00
+#define TRACE_GET_ORG(x)            ((((UINT32)(x)) & TRACE_ORG_MASK) >> 8)
+
+#define TRACE_ORG_STACK             0x00000000
+#define TRACE_ORG_HCI_TRANS         0x00000100
+#define TRACE_ORG_PROTO_DISP        0x00000200
+#define TRACE_ORG_RPC               0x00000300
+#define TRACE_ORG_GKI               0x00000400  /* OBSOLETED */
+#define TRACE_ORG_APPL              0x00000500
+#define TRACE_ORG_SCR_WRAPPER       0x00000600
+#define TRACE_ORG_SCR_ENGINE        0x00000700
+#define TRACE_ORG_USER_SCR          0x00000800
+#define TRACE_ORG_TESTER            0x00000900
+#define TRACE_ORG_MAX_NUM           10          /* 32-bit mask; must be < 32 */
+#define TRACE_LITE_ORG_MAX_NUM		6
+#define TRACE_ORG_ALL               0x03ff
+#define TRACE_ORG_RPC_TRANS         0x04
+
+#define TRACE_ORG_REG               0x00000909
+#define TRACE_ORG_REG_SUCCESS       0x0000090a
+
+/* TRACE_TYPE                       0x000000^^*/
+#define TRACE_TYPE_MASK             0x000000ff
+#define TRACE_GET_TYPE(x)           (((UINT32)(x)) & TRACE_TYPE_MASK)
+
+#define TRACE_TYPE_ERROR            0x00000000
+#define TRACE_TYPE_WARNING          0x00000001
+#define TRACE_TYPE_API              0x00000002
+#define TRACE_TYPE_EVENT            0x00000003
+#define TRACE_TYPE_DEBUG            0x00000004
+#define TRACE_TYPE_STACK_ONLY_MAX   TRACE_TYPE_DEBUG
+#define TRACE_TYPE_TX               0x00000005
+#define TRACE_TYPE_RX               0x00000006
+#define TRACE_TYPE_DEBUG_ASSERT     0x00000007
+#define TRACE_TYPE_GENERIC          0x00000008
+#define TRACE_TYPE_REG              0x00000009
+#define TRACE_TYPE_REG_SUCCESS      0x0000000a
+#define TRACE_TYPE_CMD_TX           0x0000000b
+#define TRACE_TYPE_EVT_TX           0x0000000c
+#define TRACE_TYPE_ACL_TX           0x0000000d
+#define TRACE_TYPE_CMD_RX           0x0000000e
+#define TRACE_TYPE_EVT_RX           0x0000000f
+#define TRACE_TYPE_ACL_RX           0x00000010
+#define TRACE_TYPE_TARGET_TRACE     0x00000011
+#define TRACE_TYPE_SCO_TX           0x00000012
+#define TRACE_TYPE_SCO_RX           0x00000013
+
+
+#define TRACE_TYPE_MAX_NUM          20
+#define TRACE_TYPE_ALL              0xffff
+
+/* Define color for script type */
+#define SCR_COLOR_DEFAULT       0
+#define SCR_COLOR_TYPE_COMMENT  1
+#define SCR_COLOR_TYPE_COMMAND  2
+#define SCR_COLOR_TYPE_EVENT    3
+#define SCR_COLOR_TYPE_SELECT   4
+
+/* Define protocol trace flag values */
+#define SCR_PROTO_TRACE_HCI_SUMMARY 0x00000001
+#define SCR_PROTO_TRACE_HCI_DATA    0x00000002
+#define SCR_PROTO_TRACE_L2CAP       0x00000004
+#define SCR_PROTO_TRACE_RFCOMM      0x00000008
+#define SCR_PROTO_TRACE_SDP         0x00000010
+#define SCR_PROTO_TRACE_TCS         0x00000020
+#define SCR_PROTO_TRACE_OBEX        0x00000040
+#define SCR_PROTO_TRACE_OAPP        0x00000080 /* OBEX Application Profile */
+#define SCR_PROTO_TRACE_AMP         0x00000100
+#define SCR_PROTO_TRACE_BNEP        0x00000200
+#define SCR_PROTO_TRACE_AVP         0x00000400
+#define SCR_PROTO_TRACE_MCA         0x00000800
+#define SCR_PROTO_TRACE_ATT         0x00001000
+#define SCR_PROTO_TRACE_SMP         0x00002000
+#define SCR_PROTO_TRACE_NCI         0x00004000
+#define SCR_PROTO_TRACE_LLCP        0x00008000
+#define SCR_PROTO_TRACE_NDEF        0x00010000
+#define SCR_PROTO_TRACE_RW          0x00020000
+#define SCR_PROTO_TRACE_CE          0x00040000
+#define SCR_PROTO_TRACE_SNEP        0x00080000
+#define SCR_PROTO_TRACE_CHO         0x00100000
+#define SCR_PROTO_TRACE_ALL         0x001fffff
+#define SCR_PROTO_TRACE_HCI_LOGGING_VSE 0x0800 /* Brcm vs event for logmsg and protocol traces */
+
+#define MAX_SCRIPT_TYPE             5
+
+#define TCS_PSM_INTERCOM        5
+#define TCS_PSM_CORDLESS        7
+#define BT_PSM_BNEP             0x000F
+/* Define PSMs HID uses */
+#define HID_PSM_CONTROL         0x0011
+#define HID_PSM_INTERRUPT       0x0013
+
+/* Define a function for logging */
+typedef void (BT_LOG_FUNC) (int trace_type, const char *fmt_str, ...);
+
+/* bd addr length and type */
+#ifndef BD_ADDR_LEN
+#define BD_ADDR_LEN     6
+typedef uint8_t BD_ADDR[BD_ADDR_LEN];
+#endif
+
+// From bd.c
+
+/*****************************************************************************
+**  Constants
+*****************************************************************************/
+
+/* global constant for "any" bd addr */
+static const BD_ADDR bd_addr_any = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
+static const BD_ADDR bd_addr_null= {0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
+
+/*****************************************************************************
+**  Functions
+*****************************************************************************/
+
+/*******************************************************************************
+**
+** Function         bdcpy
+**
+** Description      Copy bd addr b to a.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static inline void bdcpy(BD_ADDR a, const BD_ADDR b)
+{
+    int i;
+
+    for (i = BD_ADDR_LEN; i != 0; i--)
+    {
+        *a++ = *b++;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bdcmp
+**
+** Description      Compare bd addr b to a.
+**
+**
+** Returns          Zero if b==a, nonzero otherwise (like memcmp).
+**
+*******************************************************************************/
+static inline int bdcmp(const BD_ADDR a, const BD_ADDR b)
+{
+    int i;
+
+    for (i = BD_ADDR_LEN; i != 0; i--)
+    {
+        if (*a++ != *b++)
+        {
+            return -1;
+        }
+    }
+    return 0;
+}
+
+/*******************************************************************************
+**
+** Function         bdcmpany
+**
+** Description      Compare bd addr to "any" bd addr.
+**
+**
+** Returns          Zero if a equals bd_addr_any.
+**
+*******************************************************************************/
+static inline int bdcmpany(const BD_ADDR a)
+{
+    return bdcmp(a, bd_addr_any);
+}
+
+/*******************************************************************************
+**
+** Function         bdsetany
+**
+** Description      Set bd addr to "any" bd addr.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static inline void bdsetany(BD_ADDR a)
+{
+    bdcpy(a, bd_addr_any);
+}
+#endif
diff --git a/rtkbt/code/bt/stack/include/btm_api.h b/rtkbt/code/bt/stack/include/btm_api.h
new file mode 100755
index 0000000..b3232f4
--- /dev/null
+++ b/rtkbt/code/bt/stack/include/btm_api.h
@@ -0,0 +1,3960 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains the Bluetooth Manager (BTM) API function external
+ *  definitions.
+ *
+ ******************************************************************************/
+#ifndef BTM_API_H
+#define BTM_API_H
+
+#include "bt_target.h"
+#include "sdp_api.h"
+#include "hcidefs.h"
+
+#include "smp_api.h"
+/*****************************************************************************
+**  DEVICE CONTROL and COMMON
+*****************************************************************************/
+/*****************************
+**  Device Control Constants
+******************************/
+/* Maximum number of bytes allowed for vendor specific command parameters */
+#define BTM_MAX_VENDOR_SPECIFIC_LEN  HCI_COMMAND_SIZE
+
+/* BTM application return status codes */
+enum
+{
+    BTM_SUCCESS = 0,                    /* 0  Command succeeded                 */
+    BTM_CMD_STARTED,                    /* 1  Command started OK.               */
+    BTM_BUSY,                           /* 2  Device busy with another command  */
+    BTM_NO_RESOURCES,                   /* 3  No resources to issue command     */
+    BTM_MODE_UNSUPPORTED,               /* 4  Request for 1 or more unsupported modes */
+    BTM_ILLEGAL_VALUE,                  /* 5  Illegal parameter value           */
+    BTM_WRONG_MODE,                     /* 6  Device in wrong mode for request  */
+    BTM_UNKNOWN_ADDR,                   /* 7  Unknown remote BD address         */
+    BTM_DEVICE_TIMEOUT,                 /* 8  Device timeout                    */
+    BTM_BAD_VALUE_RET,                  /* 9  A bad value was received from HCI */
+    BTM_ERR_PROCESSING,                 /* 10 Generic error                     */
+    BTM_NOT_AUTHORIZED,                 /* 11 Authorization failed              */
+    BTM_DEV_RESET,                      /* 12 Device has been reset             */
+    BTM_CMD_STORED,                     /* 13 request is stored in control block */
+    BTM_ILLEGAL_ACTION,                 /* 14 state machine gets illegal command */
+    BTM_DELAY_CHECK,                    /* 15 delay the check on encryption */
+    BTM_SCO_BAD_LENGTH,                 /* 16 Bad SCO over HCI data length */
+    BTM_SUCCESS_NO_SECURITY,            /* 17 security passed, no security set  */
+    BTM_FAILED_ON_SECURITY,             /* 18 security failed                   */
+    BTM_REPEATED_ATTEMPTS,              /* 19 repeated attempts for LE security requests */
+    BTM_MODE4_LEVEL4_NOT_SUPPORTED      /* 20 Secure Connections Only Mode can't be supported */
+};
+
+typedef uint8_t tBTM_STATUS;
+
+#if (defined(BTA_HOST_INTERLEAVE_SEARCH) && BTA_HOST_INTERLEAVE_SEARCH == TRUE)
+typedef enum
+{
+    BTM_BR_ONE,                         /*0 First state or BR/EDR scan 1*/
+    BTM_BLE_ONE,                        /*1BLE scan 1*/
+    BTM_BR_TWO,                         /*2 BR/EDR scan 2*/
+    BTM_BLE_TWO,                        /*3 BLE scan 2*/
+    BTM_FINISH,                         /*4 End of Interleave Scan, or normal scan*/
+    BTM_NO_INTERLEAVING                 /*5 No Interleaving*/
+}btm_inq_state;
+#endif
+
+
+
+/*************************
+**  Device Control Types
+**************************/
+#define BTM_DEVICE_ROLE_BR      0x01
+#define BTM_DEVICE_ROLE_DUAL    0x02
+#define BTM_MAX_DEVICE_ROLE     BTM_DEVICE_ROLE_DUAL
+typedef UINT8 tBTM_DEVICE_ROLE;
+
+/* Device name of peer (may be truncated to save space in BTM database) */
+typedef UINT8 tBTM_BD_NAME[BTM_MAX_REM_BD_NAME_LEN + 1];
+
+/* Structure returned with local version information */
+typedef struct
+{
+    UINT8       hci_version;
+    UINT16      hci_revision;
+    UINT8       lmp_version;
+    UINT16      manufacturer;
+    UINT16      lmp_subversion;
+} tBTM_VERSION_INFO;
+
+/* Structure returned with Vendor Specific Command complete callback */
+typedef struct
+{
+    UINT16  opcode;
+    UINT16  param_len;
+    UINT8   *p_param_buf;
+} tBTM_VSC_CMPL;
+
+#define  BTM_VSC_CMPL_DATA_SIZE  (BTM_MAX_VENDOR_SPECIFIC_LEN + sizeof(tBTM_VSC_CMPL))
+/**************************************************
+**  Device Control and General Callback Functions
+***************************************************/
+/* Callback function for when device status changes. Appl must poll for
+** what the new state is (BTM_IsDeviceUp). The event occurs whenever the stack
+** has detected that the controller status has changed. This asynchronous event
+** is enabled/disabled by calling BTM_RegisterForDeviceStatusNotif().
+*/
+enum
+{
+    BTM_DEV_STATUS_UP,
+    BTM_DEV_STATUS_DOWN,
+    BTM_DEV_STATUS_CMD_TOUT
+};
+
+typedef UINT8 tBTM_DEV_STATUS;
+
+
+typedef void (tBTM_DEV_STATUS_CB) (tBTM_DEV_STATUS status);
+
+
+/* Callback function for when a vendor specific event occurs. The length and
+** array of returned parameter bytes are included. This asynchronous event
+** is enabled/disabled by calling BTM_RegisterForVSEvents().
+*/
+typedef void (tBTM_VS_EVT_CB) (UINT8 len, UINT8 *p);
+
+
+/* General callback function for notifying an application that a synchronous
+** BTM function is complete. The pointer contains the address of any returned data.
+*/
+typedef void (tBTM_CMPL_CB) (void *p1);
+
+/* VSC callback function for notifying an application that a synchronous
+** BTM function is complete. The pointer contains the address of any returned data.
+*/
+typedef void (tBTM_VSC_CMPL_CB) (tBTM_VSC_CMPL *p1);
+
+/* Callback for apps to check connection and inquiry filters.
+** Parameters are the BD Address of remote and the Dev Class of remote.
+** If the app returns none zero, the connection or inquiry result will be dropped.
+*/
+typedef UINT8 (tBTM_FILTER_CB) (BD_ADDR bd_addr, DEV_CLASS dc);
+
+/*****************************************************************************
+**  DEVICE DISCOVERY - Inquiry, Remote Name, Discovery, Class of Device
+*****************************************************************************/
+/*******************************
+**  Device Discovery Constants
+********************************/
+/* Discoverable modes */
+#define BTM_NON_DISCOVERABLE        0
+#define BTM_LIMITED_DISCOVERABLE    1
+#define BTM_GENERAL_DISCOVERABLE    2
+#define BTM_DISCOVERABLE_MASK       (BTM_LIMITED_DISCOVERABLE|BTM_GENERAL_DISCOVERABLE)
+#define BTM_MAX_DISCOVERABLE        BTM_GENERAL_DISCOVERABLE
+/* high byte for BLE Discoverable modes */
+#define BTM_BLE_NON_DISCOVERABLE        0x0000
+#define BTM_BLE_LIMITED_DISCOVERABLE    0x0100
+#define BTM_BLE_GENERAL_DISCOVERABLE    0x0200
+#define BTM_BLE_MAX_DISCOVERABLE        BTM_BLE_GENERAL_DISCOVERABLE
+#define BTM_BLE_DISCOVERABLE_MASK       (BTM_BLE_NON_DISCOVERABLE|BTM_BLE_LIMITED_DISCOVERABLE|BTM_BLE_GENERAL_DISCOVERABLE)
+
+/* Connectable modes */
+#define BTM_NON_CONNECTABLE         0
+#define BTM_CONNECTABLE             1
+#define BTM_CONNECTABLE_MASK        (BTM_NON_CONNECTABLE | BTM_CONNECTABLE)
+/* high byte for BLE Connectable modes */
+#define BTM_BLE_NON_CONNECTABLE      0x0000
+#define BTM_BLE_CONNECTABLE          0x0100
+#define BTM_BLE_MAX_CONNECTABLE      BTM_BLE_CONNECTABLE
+#define BTM_BLE_CONNECTABLE_MASK    (BTM_BLE_NON_CONNECTABLE | BTM_BLE_CONNECTABLE)
+
+/* Inquiry modes
+ * Note: These modes are associated with the inquiry active values (BTM_*ACTIVE) */
+#define BTM_INQUIRY_NONE            0
+#define BTM_GENERAL_INQUIRY         0x01
+#define BTM_LIMITED_INQUIRY         0x02
+#define BTM_BR_INQUIRY_MASK         (BTM_GENERAL_INQUIRY | BTM_LIMITED_INQUIRY)
+
+/* high byte of inquiry mode for BLE inquiry mode */
+#define BTM_BLE_INQUIRY_NONE         0x00
+#define BTM_BLE_GENERAL_INQUIRY      0x10
+#define BTM_BLE_LIMITED_INQUIRY      0x20
+#define BTM_BLE_INQUIRY_MASK         (BTM_BLE_GENERAL_INQUIRY|BTM_BLE_LIMITED_INQUIRY)
+
+/* BTM_IsInquiryActive return values (Bit Mask)
+ * Note: These bit masks are associated with the inquiry modes (BTM_*_INQUIRY) */
+#define BTM_INQUIRY_INACTIVE        0x0     /* no inquiry in progress */
+#define BTM_GENERAL_INQUIRY_ACTIVE  BTM_GENERAL_INQUIRY     /* a general inquiry is in progress */
+#define BTM_LIMITED_INQUIRY_ACTIVE  BTM_LIMITED_INQUIRY     /* a limited inquiry is in progress */
+#define BTM_PERIODIC_INQUIRY_ACTIVE 0x8     /* a periodic inquiry is active */
+#define BTM_SSP_INQUIRY_ACTIVE      0x4     /* SSP is active, so inquiry is disallowed (work around for FW bug) */
+#define BTM_LE_GENERAL_INQUIRY_ACTIVE  BTM_BLE_GENERAL_INQUIRY     /* a general inquiry is in progress */
+#define BTM_LE_LIMITED_INQUIRY_ACTIVE  BTM_BLE_LIMITED_INQUIRY      /* a limited inquiry is in progress */
+
+/* inquiry activity mask */
+#define BTM_BR_INQ_ACTIVE_MASK        (BTM_GENERAL_INQUIRY_ACTIVE|BTM_LIMITED_INQUIRY_ACTIVE|BTM_PERIODIC_INQUIRY_ACTIVE) /* BR/EDR inquiry activity mask */
+#define BTM_BLE_SCAN_ACTIVE_MASK      0xF0     /* LE scan activity mask */
+#define BTM_BLE_INQ_ACTIVE_MASK       (BTM_LE_GENERAL_INQUIRY_ACTIVE|BTM_LE_LIMITED_INQUIRY_ACTIVE) /* LE inquiry activity mask*/
+#define BTM_INQUIRY_ACTIVE_MASK       (BTM_BR_INQ_ACTIVE_MASK | BTM_BLE_INQ_ACTIVE_MASK) /* inquiry activity mask */
+
+/* Define scan types */
+#define BTM_SCAN_TYPE_STANDARD      0
+#define BTM_SCAN_TYPE_INTERLACED    1       /* 1.2 devices only */
+
+/* Define inquiry results mode */
+#define BTM_INQ_RESULT_STANDARD     0
+#define BTM_INQ_RESULT_WITH_RSSI    1
+#define BTM_INQ_RESULT_EXTENDED     2
+
+#define BTM_INQ_RES_IGNORE_RSSI     0x7f    /* RSSI value not supplied (ignore it) */
+
+/* Inquiry Filter Condition types (see tBTM_INQ_PARMS) */
+#define BTM_CLR_INQUIRY_FILTER          0                   /* Inquiry Filtering is turned off */
+#define BTM_FILTER_COND_DEVICE_CLASS    HCI_FILTER_COND_DEVICE_CLASS /* Filter on device class */
+#define BTM_FILTER_COND_BD_ADDR         HCI_FILTER_COND_BD_ADDR /* Filter on device addr */
+
+/* State of the remote name retrieval during inquiry operations.
+** Used in the tBTM_INQ_INFO structure, and returned in the
+** BTM_InqDbRead, BTM_InqDbFirst, and BTM_InqDbNext functions.
+** The name field is valid when the state returned is
+** BTM_INQ_RMT_NAME_DONE */
+#define BTM_INQ_RMT_NAME_EMPTY      0
+#define BTM_INQ_RMT_NAME_PENDING    1
+#define BTM_INQ_RMT_NAME_DONE       2
+#define BTM_INQ_RMT_NAME_FAILED     3
+
+/*********************************
+ *** Class of Device constants ***
+ *********************************/
+#define BTM_FORMAT_TYPE_1   0x00
+
+/****************************
+** minor device class field
+*****************************/
+
+/* 0x00 is used as unclassified for all minor device classes */
+#define BTM_COD_MINOR_UNCLASSIFIED          0x00
+
+/* minor device class field for Computer Major Class */
+/* #define BTM_COD_MINOR_UNCLASSIFIED       0x00    */
+#define BTM_COD_MINOR_DESKTOP_WORKSTATION   0x04
+#define BTM_COD_MINOR_SERVER_COMPUTER       0x08
+#define BTM_COD_MINOR_LAPTOP                0x0C
+#define BTM_COD_MINOR_HANDHELD_PC_PDA       0x10    /* clam shell */
+#define BTM_COD_MINOR_PALM_SIZE_PC_PDA      0x14
+#define BTM_COD_MINOR_WEARABLE_COMPUTER     0x18    /* watch sized */
+
+/* minor device class field for Phone Major Class */
+/* #define BTM_COD_MINOR_UNCLASSIFIED       0x00    */
+#define BTM_COD_MINOR_CELLULAR              0x04
+#define BTM_COD_MINOR_CORDLESS              0x08
+#define BTM_COD_MINOR_SMART_PHONE           0x0C
+#define BTM_COD_MINOR_WIRED_MDM_V_GTWY      0x10 /* wired modem or voice gatway */
+#define BTM_COD_MINOR_ISDN_ACCESS           0x14
+
+/* minor device class field for LAN Access Point Major Class */
+/* Load Factor Field bit 5-7 */
+#define BTM_COD_MINOR_FULLY_AVAILABLE       0x00
+#define BTM_COD_MINOR_1_17_UTILIZED         0x20
+#define BTM_COD_MINOR_17_33_UTILIZED        0x40
+#define BTM_COD_MINOR_33_50_UTILIZED        0x60
+#define BTM_COD_MINOR_50_67_UTILIZED        0x80
+#define BTM_COD_MINOR_67_83_UTILIZED        0xA0
+#define BTM_COD_MINOR_83_99_UTILIZED        0xC0
+#define BTM_COD_MINOR_NO_SERVICE_AVAILABLE  0xE0
+/* sub-Field bit 2-4 */
+/* #define BTM_COD_MINOR_UNCLASSIFIED       0x00    */
+
+/* minor device class field for Audio/Video Major Class */
+/* #define BTM_COD_MINOR_UNCLASSIFIED       0x00    */
+#define BTM_COD_MINOR_CONFM_HEADSET         0x04
+#define BTM_COD_MINOR_CONFM_HANDSFREE       0x08
+#define BTM_COD_MINOR_MICROPHONE            0x10
+#define BTM_COD_MINOR_LOUDSPEAKER           0x14
+#define BTM_COD_MINOR_HEADPHONES            0x18
+#define BTM_COD_MINOR_PORTABLE_AUDIO        0x1C
+#define BTM_COD_MINOR_CAR_AUDIO             0x20
+#define BTM_COD_MINOR_SET_TOP_BOX           0x24
+#define BTM_COD_MINOR_HIFI_AUDIO            0x28
+#define BTM_COD_MINOR_VCR                   0x2C
+#define BTM_COD_MINOR_VIDEO_CAMERA          0x30
+#define BTM_COD_MINOR_CAMCORDER             0x34
+#define BTM_COD_MINOR_VIDEO_MONITOR         0x38
+#define BTM_COD_MINOR_VIDDISP_LDSPKR        0x3C
+#define BTM_COD_MINOR_VIDEO_CONFERENCING    0x40
+#define BTM_COD_MINOR_GAMING_TOY            0x48
+
+/* minor device class field for Peripheral Major Class */
+/* Bits 6-7 independently specify mouse, keyboard, or combo mouse/keyboard */
+#define BTM_COD_MINOR_KEYBOARD              0x40
+#define BTM_COD_MINOR_POINTING              0x80
+#define BTM_COD_MINOR_COMBO                 0xC0
+/* Bits 2-5 OR'd with selection from bits 6-7 */
+/* #define BTM_COD_MINOR_UNCLASSIFIED       0x00    */
+#define BTM_COD_MINOR_JOYSTICK              0x04
+#define BTM_COD_MINOR_GAMEPAD               0x08
+#define BTM_COD_MINOR_REMOTE_CONTROL        0x0C
+#define BTM_COD_MINOR_SENSING_DEVICE        0x10
+#define BTM_COD_MINOR_DIGITIZING_TABLET     0x14
+#define BTM_COD_MINOR_CARD_READER           0x18    /* e.g. SIM card reader */
+#define BTM_COD_MINOR_DIGITAL_PAN           0x1C
+#define BTM_COD_MINOR_HAND_SCANNER          0x20
+#define BTM_COD_MINOR_HAND_GESTURAL_INPUT   0x24
+
+/* minor device class field for Imaging Major Class */
+/* Bits 5-7 independently specify display, camera, scanner, or printer */
+#define BTM_COD_MINOR_DISPLAY               0x10
+#define BTM_COD_MINOR_CAMERA                0x20
+#define BTM_COD_MINOR_SCANNER               0x40
+#define BTM_COD_MINOR_PRINTER               0x80
+/* Bits 2-3 Reserved */
+/* #define BTM_COD_MINOR_UNCLASSIFIED       0x00    */
+
+/* minor device class field for Wearable Major Class */
+/* Bits 2-7 meaningful    */
+#define BTM_COD_MINOR_WRIST_WATCH           0x04
+#define BTM_COD_MINOR_PAGER                 0x08
+#define BTM_COD_MINOR_JACKET                0x0C
+#define BTM_COD_MINOR_HELMET                0x10
+#define BTM_COD_MINOR_GLASSES               0x14
+
+/* minor device class field for Toy Major Class */
+/* Bits 2-7 meaningful    */
+#define BTM_COD_MINOR_ROBOT                 0x04
+#define BTM_COD_MINOR_VEHICLE               0x08
+#define BTM_COD_MINOR_DOLL_ACTION_FIGURE    0x0C
+#define BTM_COD_MINOR_CONTROLLER            0x10
+#define BTM_COD_MINOR_GAME                  0x14
+
+/* minor device class field for Health Major Class */
+/* Bits 2-7 meaningful    */
+#define BTM_COD_MINOR_BLOOD_MONITOR         0x04
+#define BTM_COD_MINOR_THERMOMETER           0x08
+#define BTM_COD_MINOR_WEIGHING_SCALE        0x0C
+#define BTM_COD_MINOR_GLUCOSE_METER         0x10
+#define BTM_COD_MINOR_PULSE_OXIMETER        0x14
+#define BTM_COD_MINOR_HEART_PULSE_MONITOR   0x18
+#define BTM_COD_MINOR_HEALTH_DATA_DISPLAY   0x1C
+#define BTM_COD_MINOR_STEP_COUNTER          0x20
+#define BTM_COD_MINOR_BODY_COM_ANALYZER     0x24
+#define BTM_COD_MINOR_PEAK_FLOW_MONITOR     0x28
+#define BTM_COD_MINOR_MEDICATION_MONITOR    0x2C
+#define BTM_COD_MINOR_KNEE_PROSTHESIS       0x30
+#define BTM_COD_MINOR_ANKLE_PROSTHESIS      0x34
+
+
+/***************************
+** major device class field
+****************************/
+#define BTM_COD_MAJOR_MISCELLANEOUS         0x00
+#define BTM_COD_MAJOR_COMPUTER              0x01
+#define BTM_COD_MAJOR_PHONE                 0x02
+#define BTM_COD_MAJOR_LAN_ACCESS_PT         0x03
+#define BTM_COD_MAJOR_AUDIO                 0x04
+#define BTM_COD_MAJOR_PERIPHERAL            0x05
+#define BTM_COD_MAJOR_IMAGING               0x06
+#define BTM_COD_MAJOR_WEARABLE              0x07
+#define BTM_COD_MAJOR_TOY                   0x08
+#define BTM_COD_MAJOR_HEALTH                0x09
+#define BTM_COD_MAJOR_UNCLASSIFIED          0x1F
+
+/***************************
+** service class fields
+****************************/
+#define BTM_COD_SERVICE_LMTD_DISCOVER       0x0020
+#define BTM_COD_SERVICE_POSITIONING         0x0100
+#define BTM_COD_SERVICE_NETWORKING          0x0200
+#define BTM_COD_SERVICE_RENDERING           0x0400
+#define BTM_COD_SERVICE_CAPTURING           0x0800
+#define BTM_COD_SERVICE_OBJ_TRANSFER        0x1000
+#define BTM_COD_SERVICE_AUDIO               0x2000
+#define BTM_COD_SERVICE_TELEPHONY           0x4000
+#define BTM_COD_SERVICE_INFORMATION         0x8000
+
+/* class of device field macros */
+#define BTM_COD_FORMAT_TYPE(u8, pd)         {u8  = pd[2]&0x03;}
+#define BTM_COD_MINOR_CLASS(u8, pd)         {u8  = pd[2]&0xFC;}
+#define BTM_COD_MAJOR_CLASS(u8, pd)         {u8  = pd[1]&0x1F;}
+#define BTM_COD_SERVICE_CLASS(u16, pd)      {u16 = pd[0]; u16<<=8; u16 += pd[1]&0xE0;}
+
+/* to set the fields (assumes that format type is always 0) */
+#define FIELDS_TO_COD(pd, mn, mj, sv) {pd[2] = mn; pd[1] =              \
+                                       mj+ ((sv)&BTM_COD_SERVICE_CLASS_LO_B); \
+                                       pd[0] = (sv) >> 8;}
+
+/* the COD masks */
+#define BTM_COD_FORMAT_TYPE_MASK      0x03
+#define BTM_COD_MINOR_CLASS_MASK      0xFC
+#define BTM_COD_MAJOR_CLASS_MASK      0x1F
+#define BTM_COD_SERVICE_CLASS_LO_B    0x00E0
+#define BTM_COD_SERVICE_CLASS_MASK    0xFFE0
+
+
+/* BTM service definitions
+** Used for storing EIR data to bit mask
+*/
+enum
+{
+    BTM_EIR_UUID_SERVCLASS_SERVICE_DISCOVERY_SERVER,
+/*    BTM_EIR_UUID_SERVCLASS_BROWSE_GROUP_DESCRIPTOR,   */
+/*    BTM_EIR_UUID_SERVCLASS_PUBLIC_BROWSE_GROUP,       */
+    BTM_EIR_UUID_SERVCLASS_SERIAL_PORT,
+    BTM_EIR_UUID_SERVCLASS_LAN_ACCESS_USING_PPP,
+    BTM_EIR_UUID_SERVCLASS_DIALUP_NETWORKING,
+    BTM_EIR_UUID_SERVCLASS_IRMC_SYNC,
+    BTM_EIR_UUID_SERVCLASS_OBEX_OBJECT_PUSH,
+    BTM_EIR_UUID_SERVCLASS_OBEX_FILE_TRANSFER,
+    BTM_EIR_UUID_SERVCLASS_IRMC_SYNC_COMMAND,
+    BTM_EIR_UUID_SERVCLASS_HEADSET,
+    BTM_EIR_UUID_SERVCLASS_CORDLESS_TELEPHONY,
+    BTM_EIR_UUID_SERVCLASS_AUDIO_SOURCE,
+    BTM_EIR_UUID_SERVCLASS_AUDIO_SINK,
+    BTM_EIR_UUID_SERVCLASS_AV_REM_CTRL_TARGET,
+/*    BTM_EIR_UUID_SERVCLASS_ADV_AUDIO_DISTRIBUTION,    */
+    BTM_EIR_UUID_SERVCLASS_AV_REMOTE_CONTROL,
+/*    BTM_EIR_UUID_SERVCLASS_VIDEO_CONFERENCING,        */
+    BTM_EIR_UUID_SERVCLASS_INTERCOM,
+    BTM_EIR_UUID_SERVCLASS_FAX,
+    BTM_EIR_UUID_SERVCLASS_HEADSET_AUDIO_GATEWAY,
+/*    BTM_EIR_UUID_SERVCLASS_WAP,                       */
+/*    BTM_EIR_UUID_SERVCLASS_WAP_CLIENT,                */
+    BTM_EIR_UUID_SERVCLASS_PANU,
+    BTM_EIR_UUID_SERVCLASS_NAP,
+    BTM_EIR_UUID_SERVCLASS_GN,
+    BTM_EIR_UUID_SERVCLASS_DIRECT_PRINTING,
+/*    BTM_EIR_UUID_SERVCLASS_REFERENCE_PRINTING,        */
+    BTM_EIR_UUID_SERVCLASS_IMAGING,
+    BTM_EIR_UUID_SERVCLASS_IMAGING_RESPONDER,
+    BTM_EIR_UUID_SERVCLASS_IMAGING_AUTO_ARCHIVE,
+    BTM_EIR_UUID_SERVCLASS_IMAGING_REF_OBJECTS,
+    BTM_EIR_UUID_SERVCLASS_HF_HANDSFREE,
+    BTM_EIR_UUID_SERVCLASS_AG_HANDSFREE,
+    BTM_EIR_UUID_SERVCLASS_DIR_PRT_REF_OBJ_SERVICE,
+/*    BTM_EIR_UUID_SERVCLASS_REFLECTED_UI,              */
+    BTM_EIR_UUID_SERVCLASS_BASIC_PRINTING,
+    BTM_EIR_UUID_SERVCLASS_PRINTING_STATUS,
+    BTM_EIR_UUID_SERVCLASS_HUMAN_INTERFACE,
+    BTM_EIR_UUID_SERVCLASS_CABLE_REPLACEMENT,
+    BTM_EIR_UUID_SERVCLASS_HCRP_PRINT,
+    BTM_EIR_UUID_SERVCLASS_HCRP_SCAN,
+/*    BTM_EIR_UUID_SERVCLASS_COMMON_ISDN_ACCESS,        */
+/*    BTM_EIR_UUID_SERVCLASS_VIDEO_CONFERENCING_GW,     */
+/*    BTM_EIR_UUID_SERVCLASS_UDI_MT,                    */
+/*    BTM_EIR_UUID_SERVCLASS_UDI_TA,                    */
+/*    BTM_EIR_UUID_SERVCLASS_VCP,                       */
+    BTM_EIR_UUID_SERVCLASS_SAP,
+    BTM_EIR_UUID_SERVCLASS_PBAP_PCE,
+    BTM_EIR_UUID_SERVCLASS_PBAP_PSE,
+/*    BTM_EIR_UUID_SERVCLASS_TE_PHONE_ACCESS,           */
+/*    BTM_EIR_UUID_SERVCLASS_ME_PHONE_ACCESS,           */
+    BTM_EIR_UUID_SERVCLASS_PHONE_ACCESS,
+    BTM_EIR_UUID_SERVCLASS_HEADSET_HS,
+    BTM_EIR_UUID_SERVCLASS_PNP_INFORMATION,
+/*    BTM_EIR_UUID_SERVCLASS_GENERIC_NETWORKING,        */
+/*    BTM_EIR_UUID_SERVCLASS_GENERIC_FILETRANSFER,      */
+/*    BTM_EIR_UUID_SERVCLASS_GENERIC_AUDIO,             */
+/*    BTM_EIR_UUID_SERVCLASS_GENERIC_TELEPHONY,         */
+/*    BTM_EIR_UUID_SERVCLASS_UPNP_SERVICE,              */
+/*    BTM_EIR_UUID_SERVCLASS_UPNP_IP_SERVICE,           */
+/*    BTM_EIR_UUID_SERVCLASS_ESDP_UPNP_IP_PAN,          */
+/*    BTM_EIR_UUID_SERVCLASS_ESDP_UPNP_IP_LAP,          */
+/*    BTM_EIR_UUID_SERVCLASS_ESDP_UPNP_IP_L2CAP,        */
+    BTM_EIR_UUID_SERVCLASS_VIDEO_SOURCE,
+    BTM_EIR_UUID_SERVCLASS_VIDEO_SINK,
+/*    BTM_EIR_UUID_SERVCLASS_VIDEO_DISTRIBUTION         */
+/*    BTM_EIR_UUID_SERVCLASS_HDP_PROFILE                */
+    BTM_EIR_UUID_SERVCLASS_MESSAGE_ACCESS,
+    BTM_EIR_UUID_SERVCLASS_MESSAGE_NOTIFICATION,
+    BTM_EIR_UUID_SERVCLASS_HDP_SOURCE,
+    BTM_EIR_UUID_SERVCLASS_HDP_SINK,
+    BTM_EIR_MAX_SERVICES
+};
+
+/* search result in EIR of inquiry database */
+#define BTM_EIR_FOUND           0
+#define BTM_EIR_NOT_FOUND       1
+#define BTM_EIR_UNKNOWN         2
+
+typedef UINT8 tBTM_EIR_SEARCH_RESULT;
+
+#define BTM_EIR_FLAGS_TYPE                  HCI_EIR_FLAGS_TYPE                  /* 0x01 */
+#define BTM_EIR_MORE_16BITS_UUID_TYPE       HCI_EIR_MORE_16BITS_UUID_TYPE       /* 0x02 */
+#define BTM_EIR_COMPLETE_16BITS_UUID_TYPE   HCI_EIR_COMPLETE_16BITS_UUID_TYPE   /* 0x03 */
+#define BTM_EIR_MORE_32BITS_UUID_TYPE       HCI_EIR_MORE_32BITS_UUID_TYPE       /* 0x04 */
+#define BTM_EIR_COMPLETE_32BITS_UUID_TYPE   HCI_EIR_COMPLETE_32BITS_UUID_TYPE   /* 0x05 */
+#define BTM_EIR_MORE_128BITS_UUID_TYPE      HCI_EIR_MORE_128BITS_UUID_TYPE      /* 0x06 */
+#define BTM_EIR_COMPLETE_128BITS_UUID_TYPE  HCI_EIR_COMPLETE_128BITS_UUID_TYPE  /* 0x07 */
+#define BTM_EIR_SHORTENED_LOCAL_NAME_TYPE   HCI_EIR_SHORTENED_LOCAL_NAME_TYPE   /* 0x08 */
+#define BTM_EIR_COMPLETE_LOCAL_NAME_TYPE    HCI_EIR_COMPLETE_LOCAL_NAME_TYPE    /* 0x09 */
+#define BTM_EIR_TX_POWER_LEVEL_TYPE         HCI_EIR_TX_POWER_LEVEL_TYPE         /* 0x0A */
+#define BTM_EIR_MANUFACTURER_SPECIFIC_TYPE  HCI_EIR_MANUFACTURER_SPECIFIC_TYPE  /* 0xFF */
+
+/* the following EIR tags are defined to OOB, not regular EIR data */
+#define BTM_EIR_OOB_BD_ADDR_TYPE            HCI_EIR_OOB_BD_ADDR_TYPE    /* 6 bytes */
+#define BTM_EIR_OOB_COD_TYPE                HCI_EIR_OOB_COD_TYPE        /* 3 bytes */
+#define BTM_EIR_OOB_SSP_HASH_C_TYPE         HCI_EIR_OOB_SSP_HASH_C_TYPE /* 16 bytes */
+#define BTM_EIR_OOB_SSP_RAND_R_TYPE         HCI_EIR_OOB_SSP_RAND_R_TYPE /* 16 bytes */
+
+#define BTM_OOB_MANDATORY_SIZE      8   /* include 2 bytes length & 6 bytes bd_addr */
+#define BTM_OOB_DATA_LEN_SIZE       2
+#define BTM_OOB_BD_ADDR_SIZE        6
+#define BTM_OOB_COD_SIZE            BT_OOB_COD_SIZE
+#define BTM_OOB_HASH_C_SIZE         BT_OOB_HASH_C_SIZE
+#define BTM_OOB_RAND_R_SIZE         BT_OOB_RAND_R_SIZE
+
+#define BTM_BLE_SEC_NONE                0
+#define BTM_BLE_SEC_ENCRYPT             1 /* encrypt the link using current key */
+#define BTM_BLE_SEC_ENCRYPT_NO_MITM     2
+#define BTM_BLE_SEC_ENCRYPT_MITM        3
+typedef UINT8   tBTM_BLE_SEC_ACT;
+
+/************************************************************************************************
+** BTM Services MACROS handle array of UINT32 bits for more than 32 services
+*************************************************************************************************/
+/* Determine the number of UINT32's necessary for services */
+#define BTM_EIR_ARRAY_BITS          32          /* Number of bits in each array element */
+#define BTM_EIR_SERVICE_ARRAY_SIZE  (((UINT32)BTM_EIR_MAX_SERVICES / BTM_EIR_ARRAY_BITS) + \
+                                    (((UINT32)BTM_EIR_MAX_SERVICES % BTM_EIR_ARRAY_BITS) ? 1 : 0))
+
+/* MACRO to set the service bit mask in a bit stream */
+#define BTM_EIR_SET_SERVICE(p, service)  (((UINT32 *)(p))[(((UINT32)(service)) / BTM_EIR_ARRAY_BITS)] |=  \
+                                    ((UINT32)1 << (((UINT32)(service)) % BTM_EIR_ARRAY_BITS)))
+
+
+/* MACRO to clear the service bit mask in a bit stream */
+#define BTM_EIR_CLR_SERVICE(p, service)  (((UINT32 *)(p))[(((UINT32)(service)) / BTM_EIR_ARRAY_BITS)] &=  \
+                                    ~((UINT32)1 << (((UINT32)(service)) % BTM_EIR_ARRAY_BITS)))
+
+/* MACRO to check the service bit mask in a bit stream */
+#define BTM_EIR_HAS_SERVICE(p, service)  ((((UINT32 *)(p))[(((UINT32)(service)) / BTM_EIR_ARRAY_BITS)] &  \
+                                    ((UINT32)1 << (((UINT32)(service)) % BTM_EIR_ARRAY_BITS))) >> (((UINT32)(service)) % BTM_EIR_ARRAY_BITS))
+
+/* start of EIR in HCI buffer, 4 bytes = HCI Command(2) + Length(1) + FEC_Req(1) */
+#define BTM_HCI_EIR_OFFSET          (BT_HDR_SIZE + 4)
+
+/***************************
+**  Device Discovery Types
+****************************/
+/* Definitions of the parameters passed to BTM_StartInquiry and
+** BTM_SetPeriodicInquiryMode.
+*/
+typedef struct              /* contains the two device class condition fields */
+{
+    DEV_CLASS       dev_class;
+    DEV_CLASS       dev_class_mask;
+} tBTM_COD_COND;
+
+
+typedef union               /* contains the inquiry filter condition */
+{
+    BD_ADDR         bdaddr_cond;
+    tBTM_COD_COND   cod_cond;
+} tBTM_INQ_FILT_COND;
+
+
+typedef struct              /* contains the parameters passed to the inquiry functions */
+{
+    UINT8   mode;                       /* general or limited */
+    UINT8   duration;                   /* duration of the inquiry (1.28 sec increments) */
+    UINT8   max_resps;                  /* maximum number of responses to return */
+    BOOLEAN report_dup;                 /* report duplicated inquiry response with higher RSSI value */
+    UINT8   filter_cond_type;           /* new devices, BD ADDR, COD, or No filtering */
+    tBTM_INQ_FILT_COND  filter_cond;    /* filter value based on filter cond type */
+#if (defined(BTA_HOST_INTERLEAVE_SEARCH) && BTA_HOST_INTERLEAVE_SEARCH == TRUE)
+    UINT8   intl_duration[4];              /*duration array storing the interleave scan's time portions*/
+#endif
+} tBTM_INQ_PARMS;
+
+#define BTM_INQ_RESULT_BR       0x01
+#define BTM_INQ_RESULT_BLE      0x02
+
+#if (BLE_INCLUDED == TRUE)
+#define BTM_BLE_EVT_CONN_ADV        0x00
+#define BTM_BLE_EVT_CONN_DIR_ADV    0x01
+#define BTM_BLE_EVT_DISC_ADV        0x02
+#define BTM_BLE_EVT_NON_CONN_ADV    0x03
+#define BTM_BLE_EVT_SCAN_RSP        0x04
+typedef UINT8 tBTM_BLE_EVT_TYPE;
+#endif
+
+/* These are the fields returned in each device's response to the inquiry.  It
+** is returned in the results callback if registered.
+*/
+typedef struct
+{
+    UINT16      clock_offset;
+    BD_ADDR     remote_bd_addr;
+    DEV_CLASS   dev_class;
+    UINT8       page_scan_rep_mode;
+    UINT8       page_scan_per_mode;
+    UINT8       page_scan_mode;
+    INT8        rssi;       /* Set to BTM_INQ_RES_IGNORE_RSSI if  not valid */
+    UINT32      eir_uuid[BTM_EIR_SERVICE_ARRAY_SIZE];
+    BOOLEAN     eir_complete_list;
+#if (BLE_INCLUDED == TRUE)
+    tBT_DEVICE_TYPE         device_type;
+    UINT8       inq_result_type;
+    UINT8       ble_addr_type;
+    tBTM_BLE_EVT_TYPE       ble_evt_type;
+    UINT8                   flag;
+#endif
+} tBTM_INQ_RESULTS;
+
+
+/* This is the inquiry response information held in its database by BTM, and available
+** to applications via BTM_InqDbRead, BTM_InqDbFirst, and BTM_InqDbNext.
+*/
+typedef struct
+{
+    tBTM_INQ_RESULTS    results;
+
+    BOOLEAN             appl_knows_rem_name;    /* set by application if it knows the remote name of the peer device.
+                                                   This is later used by application to determine if remote name request is
+                                                   required to be done. Having the flag here avoid duplicate store of inquiry results */
+#if ( BLE_INCLUDED == TRUE)
+    UINT16          remote_name_len;
+    tBTM_BD_NAME    remote_name;
+    UINT8           remote_name_state;
+    UINT8           remote_name_type;
+#endif
+
+} tBTM_INQ_INFO;
+
+
+/* Structure returned with inquiry complete callback */
+typedef struct
+{
+    tBTM_STATUS status;
+    UINT8       num_resp;       /* Number of results from the current inquiry */
+} tBTM_INQUIRY_CMPL;
+
+
+/* Structure returned with remote name  request */
+typedef struct
+{
+    UINT16      status;
+    BD_ADDR     bd_addr;
+    UINT16      length;
+    BD_NAME     remote_bd_name;
+} tBTM_REMOTE_DEV_NAME;
+
+typedef struct
+{
+    UINT8   pcm_intf_rate;  /* PCM interface rate: 0: 128kbps, 1: 256 kbps;
+                                2:512 bps; 3: 1024kbps; 4: 2048kbps */
+    UINT8   frame_type;     /* frame type: 0: short; 1: long */
+    UINT8   sync_mode;      /* sync mode: 0: slave; 1: master */
+    UINT8   clock_mode;     /* clock mode: 0: slave; 1: master */
+
+}tBTM_SCO_PCM_PARAM;
+
+/****************************************
+**  Device Discovery Callback Functions
+*****************************************/
+/* Callback function for asynchronous notifications when the BTM inquiry DB
+** changes. First param is inquiry database, second is if added to or removed
+** from the inquiry database.
+*/
+typedef void (tBTM_INQ_DB_CHANGE_CB) (void *p1, BOOLEAN is_new);
+
+/* Callback function for notifications when the BTM gets inquiry response.
+** First param is inquiry results database, second is pointer of EIR.
+*/
+typedef void (tBTM_INQ_RESULTS_CB) (tBTM_INQ_RESULTS *p_inq_results, UINT8 *p_eir);
+
+/*****************************************************************************
+**  ACL CHANNEL MANAGEMENT
+*****************************************************************************/
+/******************
+**  ACL Constants
+*******************/
+
+/* ACL modes */
+#define BTM_ACL_MODE_NORMAL     HCI_MODE_ACTIVE
+#define BTM_ACL_MODE_HOLD       HCI_MODE_HOLD
+#define BTM_ACL_MODE_SNIFF      HCI_MODE_SNIFF
+#define BTM_ACL_MODE_PARK       HCI_MODE_PARK
+
+/* Returned with structure in role switch callback (tBTM_ROLE_SWITCH_CMPL) */
+#define BTM_ROLE_MASTER         HCI_ROLE_MASTER
+#define BTM_ROLE_SLAVE          HCI_ROLE_SLAVE
+#define BTM_ROLE_UNDEFINED      0xff     /* undefined value (error status) */
+
+/* ACL Packet Types */
+#define BTM_ACL_PKT_TYPES_MASK_DM1      HCI_PKT_TYPES_MASK_DM1
+#define BTM_ACL_PKT_TYPES_MASK_DH1      HCI_PKT_TYPES_MASK_DH1
+#define BTM_ACL_PKT_TYPES_MASK_DM3      HCI_PKT_TYPES_MASK_DM3
+#define BTM_ACL_PKT_TYPES_MASK_DH3      HCI_PKT_TYPES_MASK_DH3
+#define BTM_ACL_PKT_TYPES_MASK_DM5      HCI_PKT_TYPES_MASK_DM5
+#define BTM_ACL_PKT_TYPES_MASK_DH5      HCI_PKT_TYPES_MASK_DH5
+#define BTM_ACL_PKT_TYPES_MASK_NO_2_DH1 HCI_PKT_TYPES_MASK_NO_2_DH1
+#define BTM_ACL_PKT_TYPES_MASK_NO_3_DH1 HCI_PKT_TYPES_MASK_NO_3_DH1
+#define BTM_ACL_PKT_TYPES_MASK_NO_2_DH3 HCI_PKT_TYPES_MASK_NO_2_DH3
+#define BTM_ACL_PKT_TYPES_MASK_NO_3_DH3 HCI_PKT_TYPES_MASK_NO_3_DH3
+#define BTM_ACL_PKT_TYPES_MASK_NO_2_DH5 HCI_PKT_TYPES_MASK_NO_2_DH5
+#define BTM_ACL_PKT_TYPES_MASK_NO_3_DH5 HCI_PKT_TYPES_MASK_NO_3_DH5
+
+/***************
+**  ACL Types
+****************/
+
+/* Structure returned with Role Switch information (in tBTM_CMPL_CB callback function)
+** in response to BTM_SwitchRole call.
+*/
+typedef struct
+{
+    UINT8   hci_status;     /* HCI status returned with the event */
+    UINT8   role;           /* BTM_ROLE_MASTER or BTM_ROLE_SLAVE */
+    BD_ADDR remote_bd_addr; /* Remote BD addr involved with the switch */
+} tBTM_ROLE_SWITCH_CMPL;
+
+/* Structure returned with QoS information (in tBTM_CMPL_CB callback function)
+** in response to BTM_SetQoS call.
+*/
+typedef struct
+{
+    FLOW_SPEC flow;
+    UINT16 handle;
+    UINT8 status;
+} tBTM_QOS_SETUP_CMPL;
+
+
+/* Structure returned with read RSSI event (in tBTM_CMPL_CB callback function)
+** in response to BTM_ReadRSSI call.
+*/
+typedef struct
+{
+    tBTM_STATUS status;
+    UINT8       hci_status;
+    INT8        rssi;
+    BD_ADDR     rem_bda;
+} tBTM_RSSI_RESULTS;
+
+/* Structure returned with read current TX power event (in tBTM_CMPL_CB callback function)
+** in response to BTM_ReadTxPower call.
+*/
+typedef struct
+{
+    tBTM_STATUS status;
+    UINT8       hci_status;
+    INT8        tx_power;
+    BD_ADDR     rem_bda;
+} tBTM_TX_POWER_RESULTS;
+
+/* Structure returned with read link quality event (in tBTM_CMPL_CB callback function)
+** in response to BTM_ReadLinkQuality call.
+*/
+typedef struct
+{
+    tBTM_STATUS status;
+    UINT8       hci_status;
+    UINT8       link_quality;
+    BD_ADDR     rem_bda;
+} tBTM_LINK_QUALITY_RESULTS;
+
+/* Structure returned with read inq tx power quality event (in tBTM_CMPL_CB callback function)
+** in response to BTM_ReadInquiryRspTxPower call.
+*/
+typedef struct
+{
+    tBTM_STATUS status;
+    UINT8       hci_status;
+    INT8        tx_power;
+} tBTM_INQ_TXPWR_RESULTS;
+
+enum
+{
+    BTM_BL_CONN_EVT,
+    BTM_BL_DISCN_EVT,
+    BTM_BL_UPDATE_EVT,
+    BTM_BL_ROLE_CHG_EVT,
+    BTM_BL_COLLISION_EVT
+};
+typedef UINT8 tBTM_BL_EVENT;
+typedef UINT16 tBTM_BL_EVENT_MASK;
+
+#define BTM_BL_CONN_MASK        0x0001
+#define BTM_BL_DISCN_MASK       0x0002
+#define BTM_BL_UPDATE_MASK      0x0004
+#define BTM_BL_ROLE_CHG_MASK    0x0008
+
+/* Device features mask definitions */
+#define BTM_FEATURE_BYTES_PER_PAGE  HCI_FEATURE_BYTES_PER_PAGE
+#define BTM_EXT_FEATURES_PAGE_MAX   HCI_EXT_FEATURES_PAGE_MAX
+
+/* the data type associated with BTM_BL_CONN_EVT */
+typedef struct
+{
+    tBTM_BL_EVENT   event;      /* The event reported. */
+    BD_ADDR_PTR     p_bda;      /* The address of the newly connected device */
+    DEV_CLASS_PTR   p_dc;       /* The device class */
+    BD_NAME_PTR     p_bdn;      /* The device name */
+    UINT8          *p_features; /* pointer to the remote device's features page[0] (supported features page) */
+#if BLE_INCLUDED == TRUE
+    UINT16          handle;     /* connection handle */
+    tBT_TRANSPORT   transport; /* link is LE or not */
+#endif
+} tBTM_BL_CONN_DATA;
+
+/* the data type associated with BTM_BL_DISCN_EVT */
+typedef struct
+{
+    tBTM_BL_EVENT   event;  /* The event reported. */
+    BD_ADDR_PTR     p_bda;  /* The address of the disconnected device */
+#if BLE_INCLUDED == TRUE
+    UINT16          handle; /* disconnected connection handle */
+    tBT_TRANSPORT   transport; /* link is LE link or not */
+#endif
+} tBTM_BL_DISCN_DATA;
+
+/* Busy-Level shall have the inquiry_paging mask set when
+ * inquiry/paging is in progress, Else the number of ACL links */
+#define BTM_BL_INQUIRY_PAGING_MASK 0x10
+#define BTM_BL_INQUIRY_STARTED   (BTM_BL_INQUIRY_PAGING_MASK | 0x1)
+#define BTM_BL_INQUIRY_CANCELLED (BTM_BL_INQUIRY_PAGING_MASK | 0x2)
+#define BTM_BL_INQUIRY_COMPLETE  (BTM_BL_INQUIRY_PAGING_MASK | 0x3)
+#define BTM_BL_PAGING_STARTED    (BTM_BL_INQUIRY_PAGING_MASK | 0x4)
+#define BTM_BL_PAGING_COMPLETE   (BTM_BL_INQUIRY_PAGING_MASK | 0x5)
+/* the data type associated with BTM_BL_UPDATE_EVT */
+typedef struct
+{
+    tBTM_BL_EVENT   event;  /* The event reported. */
+    UINT8           busy_level;/* when paging or inquiring, level is 10.
+                                * Otherwise, the number of ACL links. */
+    UINT8           busy_level_flags; /* Notifies actual inquiry/page activities */
+} tBTM_BL_UPDATE_DATA;
+
+/* the data type associated with BTM_BL_ROLE_CHG_EVT */
+typedef struct
+{
+    tBTM_BL_EVENT   event;      /* The event reported. */
+    BD_ADDR_PTR     p_bda;      /* The address of the peer connected device */
+    UINT8           new_role;
+    UINT8           hci_status; /* HCI status returned with the event */
+} tBTM_BL_ROLE_CHG_DATA;
+
+typedef union
+{
+    tBTM_BL_EVENT           event;  /* The event reported. */
+    tBTM_BL_CONN_DATA       conn;   /* The data associated with BTM_BL_CONN_EVT */
+    tBTM_BL_DISCN_DATA      discn;  /* The data associated with BTM_BL_DISCN_EVT */
+    tBTM_BL_UPDATE_DATA     update; /* The data associated with BTM_BL_UPDATE_EVT */
+    tBTM_BL_ROLE_CHG_DATA   role_chg;/*The data associated with BTM_BL_ROLE_CHG_EVT */
+} tBTM_BL_EVENT_DATA;
+
+/* Callback function for notifications when the BTM busy level
+** changes.
+*/
+typedef void (tBTM_BL_CHANGE_CB) (tBTM_BL_EVENT_DATA *p_data);
+
+/***************************
+**  ACL Callback Functions
+****************************/
+/* Callback function for notifications when the BTM ACL connection DB
+** changes. First param is BD address, second is if added or removed.
+** Registered through BTM_AclRegisterForChanges call.
+*/
+#if BLE_INCLUDED == TRUE
+typedef void (tBTM_ACL_DB_CHANGE_CB) (BD_ADDR p_bda, DEV_CLASS p_dc,
+                                      BD_NAME p_bdn, UINT8 *features,
+                                      BOOLEAN is_new, UINT16 handle,
+                                      tBT_TRANSPORT transport);
+#else
+typedef void (tBTM_ACL_DB_CHANGE_CB) (BD_ADDR p_bda, DEV_CLASS p_dc,
+                                      BD_NAME p_bdn, UINT8 *features,
+                                      BOOLEAN is_new);
+#endif
+/*****************************************************************************
+**  SCO CHANNEL MANAGEMENT
+*****************************************************************************/
+/******************
+**  SCO Constants
+*******************/
+
+/* Define an invalid SCO index and an invalid HCI handle */
+#define BTM_INVALID_SCO_INDEX       0xFFFF
+#define BTM_INVALID_HCI_HANDLE      0xFFFF
+
+/* Define an invalid SCO disconnect reason */
+#define BTM_INVALID_SCO_DISC_REASON 0xFFFF
+
+/* Define first active SCO index */
+#define BTM_FIRST_ACTIVE_SCO_INDEX  BTM_MAX_SCO_LINKS
+
+/* Define SCO packet types used in APIs */
+#define BTM_SCO_PKT_TYPES_MASK_HV1  HCI_ESCO_PKT_TYPES_MASK_HV1
+#define BTM_SCO_PKT_TYPES_MASK_HV2  HCI_ESCO_PKT_TYPES_MASK_HV2
+#define BTM_SCO_PKT_TYPES_MASK_HV3  HCI_ESCO_PKT_TYPES_MASK_HV3
+#define BTM_SCO_PKT_TYPES_MASK_EV3  HCI_ESCO_PKT_TYPES_MASK_EV3
+#define BTM_SCO_PKT_TYPES_MASK_EV4  HCI_ESCO_PKT_TYPES_MASK_EV4
+#define BTM_SCO_PKT_TYPES_MASK_EV5  HCI_ESCO_PKT_TYPES_MASK_EV5
+#define BTM_SCO_PKT_TYPES_MASK_NO_2_EV3  HCI_ESCO_PKT_TYPES_MASK_NO_2_EV3
+#define BTM_SCO_PKT_TYPES_MASK_NO_3_EV3  HCI_ESCO_PKT_TYPES_MASK_NO_3_EV3
+#define BTM_SCO_PKT_TYPES_MASK_NO_2_EV5  HCI_ESCO_PKT_TYPES_MASK_NO_2_EV5
+#define BTM_SCO_PKT_TYPES_MASK_NO_3_EV5  HCI_ESCO_PKT_TYPES_MASK_NO_3_EV5
+
+#define BTM_SCO_LINK_ONLY_MASK  (BTM_SCO_PKT_TYPES_MASK_HV1 | \
+                                 BTM_SCO_PKT_TYPES_MASK_HV2 | \
+                                 BTM_SCO_PKT_TYPES_MASK_HV3)
+
+#define BTM_ESCO_LINK_ONLY_MASK (BTM_SCO_PKT_TYPES_MASK_EV3 | \
+                                 BTM_SCO_PKT_TYPES_MASK_EV4 | \
+                                 BTM_SCO_PKT_TYPES_MASK_EV5)
+
+#define BTM_SCO_LINK_ALL_PKT_MASK   (BTM_SCO_LINK_ONLY_MASK     | \
+                                     BTM_ESCO_LINK_ONLY_MASK)
+
+#define BTM_VALID_SCO_ALL_PKT_TYPE HCI_VALID_SCO_ALL_PKT_TYPE
+
+/* Passed in BTM_CreateSco if the packet type parameter should be ignored */
+#define BTM_IGNORE_SCO_PKT_TYPE     0
+
+/***************
+**  SCO Types
+****************/
+#define BTM_LINK_TYPE_SCO           HCI_LINK_TYPE_SCO
+#define BTM_LINK_TYPE_ESCO          HCI_LINK_TYPE_ESCO
+typedef UINT8 tBTM_SCO_TYPE;
+
+
+/*******************
+** SCO Routing Path
+********************/
+#define BTM_SCO_ROUTE_PCM           HCI_BRCM_SCO_ROUTE_PCM
+#define BTM_SCO_ROUTE_HCI           HCI_BRCM_SCO_ROUTE_HCI
+typedef UINT8 tBTM_SCO_ROUTE_TYPE;
+
+
+/*******************
+** SCO Codec Types
+********************/
+// TODO(google) This should use common definitions
+// in hci/include/hci_audio.h
+#define BTM_SCO_CODEC_NONE          0x0000
+#define BTM_SCO_CODEC_CVSD          0x0001
+#define BTM_SCO_CODEC_MSBC          0x0002
+typedef UINT16 tBTM_SCO_CODEC_TYPE;
+
+
+
+/*******************
+** SCO Air Mode Types
+********************/
+#define BTM_SCO_AIR_MODE_U_LAW          0
+#define BTM_SCO_AIR_MODE_A_LAW          1
+#define BTM_SCO_AIR_MODE_CVSD           2
+#define BTM_SCO_AIR_MODE_TRANSPNT       3
+typedef UINT8 tBTM_SCO_AIR_MODE_TYPE;
+
+/*******************
+** SCO Voice Settings
+********************/
+#define BTM_VOICE_SETTING_CVSD  ((UINT16)  (HCI_INP_CODING_LINEAR          |   \
+                                            HCI_INP_DATA_FMT_2S_COMPLEMENT |   \
+                                            HCI_INP_SAMPLE_SIZE_16BIT      |   \
+                                            HCI_AIR_CODING_FORMAT_CVSD))
+
+#define BTM_VOICE_SETTING_TRANS ((UINT16)  (HCI_INP_CODING_LINEAR          |   \
+                                            HCI_INP_DATA_FMT_2S_COMPLEMENT |   \
+                                            HCI_INP_SAMPLE_SIZE_16BIT      |   \
+                                            HCI_AIR_CODING_FORMAT_TRANSPNT))
+
+/*******************
+** SCO Data Status
+********************/
+enum
+{
+    BTM_SCO_DATA_CORRECT,
+    BTM_SCO_DATA_PAR_ERR,
+    BTM_SCO_DATA_NONE,
+    BTM_SCO_DATA_PAR_LOST
+};
+typedef UINT8 tBTM_SCO_DATA_FLAG;
+
+/***************************
+**  SCO Callback Functions
+****************************/
+typedef void (tBTM_SCO_CB) (UINT16 sco_inx);
+typedef void (tBTM_SCO_DATA_CB) (UINT16 sco_inx, BT_HDR *p_data, tBTM_SCO_DATA_FLAG status);
+
+/******************
+**  eSCO Constants
+*******************/
+#define BTM_64KBITS_RATE            0x00001f40  /* 64 kbits/sec data rate */
+
+/* Retransmission effort */
+#define BTM_ESCO_RETRANS_OFF        0
+#define BTM_ESCO_RETRANS_POWER      1
+#define BTM_ESCO_RETRANS_QUALITY    2
+#define BTM_ESCO_RETRANS_DONTCARE   0xff
+
+/* Max Latency Don't Care */
+#define BTM_ESCO_MAX_LAT_DONTCARE   0xffff
+
+/***************
+**  eSCO Types
+****************/
+/* tBTM_ESCO_CBACK event types */
+#define BTM_ESCO_CHG_EVT        1
+#define BTM_ESCO_CONN_REQ_EVT   2
+typedef UINT8 tBTM_ESCO_EVT;
+
+/* Passed into BTM_SetEScoMode() */
+typedef struct
+{
+    UINT32 tx_bw;
+    UINT32 rx_bw;
+    UINT16 max_latency;
+    UINT16 voice_contfmt;  /* Voice Settings or Content Format */
+    UINT16 packet_types;
+    UINT8  retrans_effort;
+} tBTM_ESCO_PARAMS;
+
+typedef struct
+{
+    UINT16 max_latency;
+    UINT16 packet_types;
+    UINT8  retrans_effort;
+} tBTM_CHG_ESCO_PARAMS;
+
+/* Returned by BTM_ReadEScoLinkParms() */
+typedef struct
+{
+    UINT16  rx_pkt_len;
+    UINT16  tx_pkt_len;
+    BD_ADDR bd_addr;
+    UINT8   link_type;  /* BTM_LINK_TYPE_SCO or BTM_LINK_TYPE_ESCO */
+    UINT8   tx_interval;
+    UINT8   retrans_window;
+    UINT8   air_mode;
+} tBTM_ESCO_DATA;
+
+typedef struct
+{
+    UINT16  sco_inx;
+    UINT16  rx_pkt_len;
+    UINT16  tx_pkt_len;
+    BD_ADDR bd_addr;
+    UINT8   hci_status;
+    UINT8   tx_interval;
+    UINT8   retrans_window;
+} tBTM_CHG_ESCO_EVT_DATA;
+
+typedef struct
+{
+    UINT16        sco_inx;
+    BD_ADDR       bd_addr;
+    DEV_CLASS     dev_class;
+    tBTM_SCO_TYPE link_type;
+} tBTM_ESCO_CONN_REQ_EVT_DATA;
+
+typedef union
+{
+    tBTM_CHG_ESCO_EVT_DATA      chg_evt;
+    tBTM_ESCO_CONN_REQ_EVT_DATA conn_evt;
+} tBTM_ESCO_EVT_DATA;
+
+/***************************
+**  eSCO Callback Functions
+****************************/
+typedef void (tBTM_ESCO_CBACK) (tBTM_ESCO_EVT event, tBTM_ESCO_EVT_DATA *p_data);
+
+
+/*****************************************************************************
+**  SECURITY MANAGEMENT
+*****************************************************************************/
+/*******************************
+**  Security Manager Constants
+********************************/
+
+/* Security Mode (BTM_SetSecurityMode) */
+#define BTM_SEC_MODE_UNDEFINED      0
+#define BTM_SEC_MODE_NONE           1
+#define BTM_SEC_MODE_SERVICE        2
+#define BTM_SEC_MODE_LINK           3
+#define BTM_SEC_MODE_SP             4
+#define BTM_SEC_MODE_SP_DEBUG       5
+#define BTM_SEC_MODE_SC             6
+
+/* Maximum Number of BTM Security Modes */
+#define BTM_SEC_MODES_MAX           7
+
+/* Security Service Levels [bit mask] (BTM_SetSecurityLevel)
+** Encryption should not be used without authentication
+*/
+#define BTM_SEC_NONE               0x0000 /* Nothing required */
+#define BTM_SEC_IN_AUTHORIZE       0x0001 /* Inbound call requires authorization */
+#define BTM_SEC_IN_AUTHENTICATE    0x0002 /* Inbound call requires authentication */
+#define BTM_SEC_IN_ENCRYPT         0x0004 /* Inbound call requires encryption */
+#define BTM_SEC_OUT_AUTHORIZE      0x0008 /* Outbound call requires authorization */
+#define BTM_SEC_OUT_AUTHENTICATE   0x0010 /* Outbound call requires authentication */
+#define BTM_SEC_OUT_ENCRYPT        0x0020 /* Outbound call requires encryption */
+#define BTM_SEC_MODE4_LEVEL4       0x0040 /* Secure Connections Only Mode */
+#define BTM_SEC_FORCE_MASTER       0x0100 /* Need to switch connection to be master */
+#define BTM_SEC_ATTEMPT_MASTER     0x0200 /* Try to switch connection to be master */
+#define BTM_SEC_FORCE_SLAVE        0x0400 /* Need to switch connection to be master */
+#define BTM_SEC_ATTEMPT_SLAVE      0x0800 /* Try to switch connection to be slave */
+#define BTM_SEC_IN_MITM            0x1000 /* inbound Do man in the middle protection */
+#define BTM_SEC_OUT_MITM           0x2000 /* outbound Do man in the middle protection */
+#define BTM_SEC_IN_MIN_16_DIGIT_PIN 0x4000 /* enforce a minimum of 16 digit for sec mode 2 */
+
+/* Security Flags [bit mask] (BTM_GetSecurityFlags)
+*/
+#define BTM_SEC_FLAG_AUTHORIZED     0x01
+#define BTM_SEC_FLAG_AUTHENTICATED  0x02
+#define BTM_SEC_FLAG_ENCRYPTED      0x04
+#define BTM_SEC_FLAG_LKEY_KNOWN     0x10
+#define BTM_SEC_FLAG_LKEY_AUTHED    0x20
+
+/* PIN types */
+#define BTM_PIN_TYPE_VARIABLE       HCI_PIN_TYPE_VARIABLE
+#define BTM_PIN_TYPE_FIXED          HCI_PIN_TYPE_FIXED
+
+/* Link Key types used to generate the new link key.
+** returned in link key notification callback function
+*/
+#define BTM_LKEY_TYPE_COMBINATION   HCI_LKEY_TYPE_COMBINATION
+#define BTM_LKEY_TYPE_LOCAL_UNIT    HCI_LKEY_TYPE_LOCAL_UNIT
+#define BTM_LKEY_TYPE_REMOTE_UNIT   HCI_LKEY_TYPE_REMOTE_UNIT
+#define BTM_LKEY_TYPE_DEBUG_COMB    HCI_LKEY_TYPE_DEBUG_COMB
+#define BTM_LKEY_TYPE_UNAUTH_COMB   HCI_LKEY_TYPE_UNAUTH_COMB
+#define BTM_LKEY_TYPE_AUTH_COMB     HCI_LKEY_TYPE_AUTH_COMB
+#define BTM_LKEY_TYPE_CHANGED_COMB  HCI_LKEY_TYPE_CHANGED_COMB
+
+#define BTM_LKEY_TYPE_UNAUTH_COMB_P_256 HCI_LKEY_TYPE_UNAUTH_COMB_P_256
+#define BTM_LKEY_TYPE_AUTH_COMB_P_256   HCI_LKEY_TYPE_AUTH_COMB_P_256
+
+#define BTM_LTK_DERIVED_LKEY_OFFSET 0x20    /* "easy" requirements for LK derived from LTK */
+#define BTM_LKEY_TYPE_IGNORE        0xff    /* used when event is response from
+                                               hci return link keys request */
+
+typedef UINT8 tBTM_LINK_KEY_TYPE;
+
+/* Protocol level security (BTM_SetSecurityLevel) */
+#define BTM_SEC_PROTO_L2CAP         0
+#define BTM_SEC_PROTO_SDP           1
+#define BTM_SEC_PROTO_TCS           2
+#define BTM_SEC_PROTO_RFCOMM        3
+#define BTM_SEC_PROTO_OBEX          4
+#define BTM_SEC_PROTO_BNEP          5
+#define BTM_SEC_PROTO_HID           6   /* HID      */
+#define BTM_SEC_PROTO_AVDT          7
+#define BTM_SEC_PROTO_MCA           8
+
+/* Determine the number of UINT32's necessary for security services */
+#define BTM_SEC_ARRAY_BITS          32          /* Number of bits in each array element */
+#define BTM_SEC_SERVICE_ARRAY_SIZE  (((UINT32)BTM_SEC_MAX_SERVICES / BTM_SEC_ARRAY_BITS) + \
+                                    (((UINT32)BTM_SEC_MAX_SERVICES % BTM_SEC_ARRAY_BITS) ? 1 : 0))
+
+/* Security service definitions (BTM_SetSecurityLevel)
+** Used for Authorization APIs
+*/
+#define BTM_SEC_SERVICE_SDP_SERVER      0
+#define BTM_SEC_SERVICE_SERIAL_PORT     1
+#define BTM_SEC_SERVICE_LAN_ACCESS      2
+#define BTM_SEC_SERVICE_DUN             3
+#define BTM_SEC_SERVICE_IRMC_SYNC       4
+#define BTM_SEC_SERVICE_IRMC_SYNC_CMD   5
+#define BTM_SEC_SERVICE_OBEX            6
+#define BTM_SEC_SERVICE_OBEX_FTP        7
+#define BTM_SEC_SERVICE_HEADSET         8
+#define BTM_SEC_SERVICE_CORDLESS        9
+#define BTM_SEC_SERVICE_INTERCOM        10
+#define BTM_SEC_SERVICE_FAX             11
+#define BTM_SEC_SERVICE_HEADSET_AG      12
+#define BTM_SEC_SERVICE_PNP_INFO        13
+#define BTM_SEC_SERVICE_GEN_NET         14
+#define BTM_SEC_SERVICE_GEN_FILE        15
+#define BTM_SEC_SERVICE_GEN_AUDIO       16
+#define BTM_SEC_SERVICE_GEN_TEL         17
+#define BTM_SEC_SERVICE_CTP_DATA        18
+#define BTM_SEC_SERVICE_HCRP_CTRL       19
+#define BTM_SEC_SERVICE_HCRP_DATA       20
+#define BTM_SEC_SERVICE_HCRP_NOTIF      21
+#define BTM_SEC_SERVICE_BPP_JOB         22
+#define BTM_SEC_SERVICE_BPP_STATUS      23
+#define BTM_SEC_SERVICE_BPP_REF         24
+#define BTM_SEC_SERVICE_BNEP_PANU       25
+#define BTM_SEC_SERVICE_BNEP_GN         26
+#define BTM_SEC_SERVICE_BNEP_NAP        27
+#define BTM_SEC_SERVICE_HF_HANDSFREE    28
+#define BTM_SEC_SERVICE_AG_HANDSFREE    29
+#define BTM_SEC_SERVICE_TE_PHONE_ACCESS 30
+#define BTM_SEC_SERVICE_ME_PHONE_ACCESS 31
+
+#define BTM_SEC_SERVICE_HIDH_SEC_CTRL   32
+#define BTM_SEC_SERVICE_HIDH_NOSEC_CTRL 33
+#define BTM_SEC_SERVICE_HIDH_INTR       34
+#define BTM_SEC_SERVICE_BIP             35
+#define BTM_SEC_SERVICE_BIP_REF         36
+#define BTM_SEC_SERVICE_AVDTP           37
+#define BTM_SEC_SERVICE_AVDTP_NOSEC     38
+#define BTM_SEC_SERVICE_AVCTP           39
+#define BTM_SEC_SERVICE_SAP             40
+#define BTM_SEC_SERVICE_PBAP            41
+#define BTM_SEC_SERVICE_RFC_MUX         42
+#define BTM_SEC_SERVICE_AVCTP_BROWSE    43
+#define BTM_SEC_SERVICE_MAP             44
+#define BTM_SEC_SERVICE_MAP_NOTIF       45
+#define BTM_SEC_SERVICE_MCAP_CTRL       46
+#define BTM_SEC_SERVICE_MCAP_DATA       47
+#define BTM_SEC_SERVICE_HDP_SNK         48
+#define BTM_SEC_SERVICE_HDP_SRC         49
+#define BTM_SEC_SERVICE_ATT             50
+
+/* Update these as services are added */
+#define BTM_SEC_SERVICE_FIRST_EMPTY     51
+
+#ifndef BTM_SEC_MAX_SERVICES
+#define BTM_SEC_MAX_SERVICES            75
+#endif
+
+/************************************************************************************************
+** Security Services MACROS handle array of UINT32 bits for more than 32 trusted services
+*************************************************************************************************/
+/* MACRO to set the security service bit mask in a bit stream */
+#define BTM_SEC_SET_SERVICE(p, service)  (((UINT32 *)(p))[(((UINT32)(service)) / BTM_SEC_ARRAY_BITS)] |=  \
+                                    ((UINT32)1 << (((UINT32)(service)) % BTM_SEC_ARRAY_BITS)))
+
+
+/* MACRO to clear the security service bit mask in a bit stream */
+#define BTM_SEC_CLR_SERVICE(p, service)  (((UINT32 *)(p))[(((UINT32)(service)) / BTM_SEC_ARRAY_BITS)] &=  \
+                                    ~((UINT32)1 << (((UINT32)(service)) % BTM_SEC_ARRAY_BITS)))
+
+/* MACRO to check the security service bit mask in a bit stream (Returns TRUE or FALSE) */
+#define BTM_SEC_IS_SERVICE_TRUSTED(p, service)    (((((UINT32 *)(p))[(((UINT32)(service)) / BTM_SEC_ARRAY_BITS)]) &   \
+                                        (UINT32)(((UINT32)1 << (((UINT32)(service)) % BTM_SEC_ARRAY_BITS)))) ? TRUE : FALSE)
+
+/* MACRO to copy two trusted device bitmask */
+#define BTM_SEC_COPY_TRUSTED_DEVICE(p_src, p_dst)   {UINT32 trst; for (trst = 0; trst < BTM_SEC_SERVICE_ARRAY_SIZE; trst++) \
+                                                        ((UINT32 *)(p_dst))[trst] = ((UINT32 *)(p_src))[trst];}
+
+/* MACRO to clear two trusted device bitmask */
+#define BTM_SEC_CLR_TRUSTED_DEVICE(p_dst)   {UINT32 trst; for (trst = 0; trst < BTM_SEC_SERVICE_ARRAY_SIZE; trst++) \
+                                                        ((UINT32 *)(p_dst))[trst] = 0;}
+
+/* Following bits can be provided by host in the trusted_mask array */
+/* 0..31 bits of mask[0] (Least Significant Word) */
+#define BTM_SEC_TRUST_SDP_SERVER        (1 << BTM_SEC_SERVICE_SDP_SERVER)
+#define BTM_SEC_TRUST_SERIAL_PORT       (1 << BTM_SEC_SERVICE_SERIAL_PORT)
+#define BTM_SEC_TRUST_LAN_ACCESS        (1 << BTM_SEC_SERVICE_LAN_ACCESS)
+#define BTM_SEC_TRUST_DUN               (1 << BTM_SEC_SERVICE_DUN)
+#define BTM_SEC_TRUST_IRMC_SYNC         (1 << BTM_SEC_SERVICE_IRMC_SYNC)
+#define BTM_SEC_TRUST_IRMC_SYNC_CMD     (1 << BTM_SEC_SERVICE_IRMC_SYNC_CMD)
+#define BTM_SEC_TRUST_OBEX              (1 << BTM_SEC_SERVICE_OBEX)
+#define BTM_SEC_TRUST_OBEX_FTP          (1 << BTM_SEC_SERVICE_OBEX_FTP)
+#define BTM_SEC_TRUST_HEADSET           (1 << BTM_SEC_SERVICE_HEADSET)
+#define BTM_SEC_TRUST_CORDLESS          (1 << BTM_SEC_SERVICE_CORDLESS)
+#define BTM_SEC_TRUST_INTERCOM          (1 << BTM_SEC_SERVICE_INTERCOM)
+#define BTM_SEC_TRUST_FAX               (1 << BTM_SEC_SERVICE_FAX)
+#define BTM_SEC_TRUST_HEADSET_AG        (1 << BTM_SEC_SERVICE_HEADSET_AG)
+#define BTM_SEC_TRUST_PNP_INFO          (1 << BTM_SEC_SERVICE_PNP_INFO)
+#define BTM_SEC_TRUST_GEN_NET           (1 << BTM_SEC_SERVICE_GEN_NET)
+#define BTM_SEC_TRUST_GEN_FILE          (1 << BTM_SEC_SERVICE_GEN_FILE)
+#define BTM_SEC_TRUST_GEN_AUDIO         (1 << BTM_SEC_SERVICE_GEN_AUDIO)
+#define BTM_SEC_TRUST_GEN_TEL           (1 << BTM_SEC_SERVICE_GEN_TEL)
+#define BTM_SEC_TRUST_CTP_DATA          (1 << BTM_SEC_SERVICE_CTP_DATA)
+#define BTM_SEC_TRUST_HCRP_CTRL         (1 << BTM_SEC_SERVICE_HCRP_CTRL)
+#define BTM_SEC_TRUST_HCRP_DATA         (1 << BTM_SEC_SERVICE_HCRP_DATA)
+#define BTM_SEC_TRUST_HCRP_NOTIF        (1 << BTM_SEC_SERVICE_HCRP_NOTIF)
+#define BTM_SEC_TRUST_BPP_JOB           (1 << BTM_SEC_SERVICE_JOB)
+#define BTM_SEC_TRUST_BPP_STATUS        (1 << BTM_SEC_SERVICE_STATUS)
+#define BTM_SEC_TRUST_BPP_REF           (1 << BTM_SEC_SERVICE_REF)
+#define BTM_SEC_TRUST_BNEP_PANU         (1 << BTM_SEC_SERVICE_BNEP_PANU)
+#define BTM_SEC_TRUST_BNEP_GN           (1 << BTM_SEC_SERVICE_BNEP_GN)
+#define BTM_SEC_TRUST_BNEP_NAP          (1 << BTM_SEC_SERVICE_BNEP_NAP)
+#define BTM_SEC_TRUST_HFP_HF            (1 << BTM_SEC_SERVICE_HF_HANDSFREE)
+#define BTM_SEC_TRUST_HFP_AG            (1 << BTM_SEC_SERVICE_AG_HANDSFREE)
+#define BTM_SEC_TRUST_TE_PHONE_ACCESS   (1 << BTM_SEC_SERVICE_TE_PHONE_ACCESS)
+#define BTM_SEC_TRUST_ME_PHONE_ACCESS   (1 << BTM_SEC_SERVICE_ME_PHONE_ACCESS)
+
+/* 0..31 bits of mask[1] (Most Significant Word) */
+#define BTM_SEC_TRUST_HIDH_CTRL         (1 << (BTM_SEC_SERVICE_HIDH_SEC_CTRL - 32))
+#define BTM_SEC_TRUST_HIDH_NOSEC_CTRL   (1 << (BTM_SEC_SERVICE_HIDH_NOSEC_CTRL - 32))
+#define BTM_SEC_TRUST_HIDH_INTR         (1 << (BTM_SEC_SERVICE_HIDH_INTR - 32))
+#define BTM_SEC_TRUST_BIP               (1 << (BTM_SEC_SERVICE_BIP - 32))
+#define BTM_SEC_TRUST_BIP_REF           (1 << (BTM_SEC_SERVICE_BIP_REF - 32))
+#define BTM_SEC_TRUST_AVDTP             (1 << (BTM_SEC_SERVICE_AVDTP - 32))
+#define BTM_SEC_TRUST_AVDTP_NOSEC       (1 << (BTM_SEC_SERVICE_AVDTP_NOSEC - 32))
+#define BTM_SEC_TRUST_AVCTP             (1 << (BTM_SEC_SERVICE_AVCTP - 32))
+#define BTM_SEC_TRUST_SAP               (1 << (BTM_SEC_SERVICE_SAP - 32))
+#define BTM_SEC_TRUST_PBAP              (1 << (BTM_SEC_SERVICE_PBAP - 32))
+#define BTM_SEC_TRUST_RFC_MUX           (1 << (BTM_SEC_SERVICE_RFC_MUX - 32))
+#define BTM_SEC_TRUST_AVCTP_BROWSE      (1 << (BTM_SEC_SERVICE_AVCTP_BROWSE - 32))
+#define BTM_SEC_TRUST_MAP               (1 << (BTM_SEC_SERVICE_MAP - 32))
+#define BTM_SEC_TRUST_MAP_NOTIF         (1 << (BTM_SEC_SERVICE_MAP_NOTIF - 32))
+#define BTM_SEC_TRUST_MCAP_CTRL         (1 << (BTM_SEC_SERVICE_MCAP_CTRL - 32))
+#define BTM_SEC_TRUST_MCAP_DATA         (1 << (BTM_SEC_SERVICE_MCAP_DATA - 32))
+#define BTM_SEC_TRUST_HDP_SNK           (1 << (BTM_SEC_SERVICE_HDP_SNK - 32))
+#define BTM_SEC_TRUST_HDP_SRC           (1 << (BTM_SEC_SERVICE_HDP_SRC - 32))
+
+#define BTM_SEC_TRUST_ALL               0xFFFFFFFF  /* for each array element */
+
+/****************************************
+**  Security Manager Callback Functions
+*****************************************/
+/* Authorize device for service.  Parameters are
+**              BD Address of remote
+**              Device Class of remote
+**              BD Name of remote
+**              Service name
+**              Service Id (NULL - unknown service or unused
+**                                 [BTM_SEC_SERVICE_NAME_LEN set to 0])
+**              Is originator of the connection
+**              Result of the operation
+*/
+typedef UINT8 (tBTM_AUTHORIZE_CALLBACK) (BD_ADDR bd_addr, DEV_CLASS dev_class,
+                                         tBTM_BD_NAME bd_name, UINT8 *service_name,
+                                         UINT8 service_id, BOOLEAN is_originator);
+
+/* Get PIN for the connection.  Parameters are
+**              BD Address of remote
+**              Device Class of remote
+**              BD Name of remote
+**              Flag indicating the minimum pin code length to be 16 digits
+*/
+typedef UINT8 (tBTM_PIN_CALLBACK) (BD_ADDR bd_addr, DEV_CLASS dev_class,
+                                   tBTM_BD_NAME bd_name, BOOLEAN min_16_digit);
+
+/* New Link Key for the connection.  Parameters are
+**              BD Address of remote
+**              Link Key
+**              Key Type: Combination, Local Unit, or Remote Unit
+*/
+typedef UINT8 (tBTM_LINK_KEY_CALLBACK) (BD_ADDR bd_addr, DEV_CLASS dev_class,
+                                        tBTM_BD_NAME bd_name, UINT8 *key,
+                                        UINT8 key_type);
+
+
+/* Remote Name Resolved.  Parameters are
+**              BD Address of remote
+**              BD Name of remote
+*/
+typedef void (tBTM_RMT_NAME_CALLBACK) (BD_ADDR bd_addr, DEV_CLASS dc,
+                                       tBTM_BD_NAME bd_name);
+
+
+/* Authentication complete for the connection.  Parameters are
+**              BD Address of remote
+**              Device Class of remote
+**              BD Name of remote
+**
+*/
+typedef UINT8 (tBTM_AUTH_COMPLETE_CALLBACK) (BD_ADDR bd_addr, DEV_CLASS dev_class,
+                                             tBTM_BD_NAME bd_name, int result);
+
+enum
+{
+    BTM_SP_IO_REQ_EVT,      /* received IO_CAPABILITY_REQUEST event */
+    BTM_SP_IO_RSP_EVT,      /* received IO_CAPABILITY_RESPONSE event */
+    BTM_SP_CFM_REQ_EVT,     /* received USER_CONFIRMATION_REQUEST event */
+    BTM_SP_KEY_NOTIF_EVT,   /* received USER_PASSKEY_NOTIFY event */
+    BTM_SP_KEY_REQ_EVT,     /* received USER_PASSKEY_REQUEST event */
+    BTM_SP_KEYPRESS_EVT,    /* received KEYPRESS_NOTIFY event */
+    BTM_SP_LOC_OOB_EVT,     /* received result for READ_LOCAL_OOB_DATA command */
+    BTM_SP_RMT_OOB_EVT,     /* received REMOTE_OOB_DATA_REQUEST event */
+    BTM_SP_COMPLT_EVT,      /* received SIMPLE_PAIRING_COMPLETE event */
+    BTM_SP_UPGRADE_EVT      /* check if the application wants to upgrade the link key */
+};
+typedef UINT8 tBTM_SP_EVT;
+
+#define BTM_IO_CAP_OUT      0   /* DisplayOnly */
+#define BTM_IO_CAP_IO       1   /* DisplayYesNo */
+#define BTM_IO_CAP_IN       2   /* KeyboardOnly */
+#define BTM_IO_CAP_NONE     3   /* NoInputNoOutput */
+#if BLE_INCLUDED == TRUE && SMP_INCLUDED == TRUE
+#define BTM_IO_CAP_KBDISP   4   /* Keyboard display */
+#define BTM_IO_CAP_MAX      5
+#else
+#define BTM_IO_CAP_MAX      4
+#endif
+
+typedef UINT8 tBTM_IO_CAP;
+
+#define BTM_MAX_PASSKEY_VAL (999999)
+#define BTM_MIN_PASSKEY_VAL (0)
+
+#define BTM_AUTH_SP_NO      0   /* MITM Protection Not Required - Single Profile/non-bonding
+                                Numeric comparison with automatic accept allowed */
+#define BTM_AUTH_SP_YES     1   /* MITM Protection Required - Single Profile/non-bonding
+                                Use IO Capabilities to determine authentication procedure */
+#define BTM_AUTH_AP_NO      2   /* MITM Protection Not Required - All Profiles/dedicated bonding
+                                Numeric comparison with automatic accept allowed */
+#define BTM_AUTH_AP_YES     3   /* MITM Protection Required - All Profiles/dedicated bonding
+                                Use IO Capabilities to determine authentication procedure */
+#define BTM_AUTH_SPGB_NO    4   /* MITM Protection Not Required - Single Profiles/general bonding
+                                Numeric comparison with automatic accept allowed */
+#define BTM_AUTH_SPGB_YES   5   /* MITM Protection Required - Single Profiles/general bonding
+                                Use IO Capabilities to determine authentication procedure */
+#define BTM_AUTH_DD_BOND    2   /* this bit is ORed to the BTM_AUTH_SP_* when IO exchange for dedicated bonding */
+#define BTM_AUTH_GB_BIT     4   /* the genernal bonding bit */
+#define BTM_AUTH_BONDS      6   /* the general/dedicated bonding bits  */
+#define BTM_AUTH_YN_BIT     1   /* this is the Yes or No bit  */
+
+#define BTM_BLE_INITIATOR_KEY_SIZE 15
+#define BTM_BLE_RESPONDER_KEY_SIZE 15
+#define BTM_BLE_MAX_KEY_SIZE       16
+
+typedef UINT8 tBTM_AUTH_REQ;
+
+enum
+{
+    BTM_OOB_NONE,
+    BTM_OOB_PRESENT,
+    BTM_OOB_UNKNOWN
+};
+typedef UINT8 tBTM_OOB_DATA;
+
+/* data type for BTM_SP_IO_REQ_EVT */
+typedef struct
+{
+    BD_ADDR         bd_addr;        /* peer address */
+    tBTM_IO_CAP     io_cap;         /* local IO capabilities */
+    tBTM_OOB_DATA   oob_data;       /* OOB data present (locally) for the peer device */
+    tBTM_AUTH_REQ   auth_req;       /* Authentication required (for local device) */
+    BOOLEAN         is_orig;        /* TRUE, if local device initiated the SP process */
+} tBTM_SP_IO_REQ;
+
+/* data type for BTM_SP_IO_RSP_EVT */
+typedef struct
+{
+    BD_ADDR         bd_addr;        /* peer address */
+    tBTM_IO_CAP     io_cap;         /* peer IO capabilities */
+    tBTM_OOB_DATA   oob_data;       /* OOB data present at peer device for the local device */
+    tBTM_AUTH_REQ   auth_req;       /* Authentication required for peer device */
+} tBTM_SP_IO_RSP;
+
+/* data type for BTM_SP_CFM_REQ_EVT */
+typedef struct
+{
+    BD_ADDR         bd_addr;        /* peer address */
+    DEV_CLASS       dev_class;      /* peer CoD */
+    tBTM_BD_NAME    bd_name;        /* peer device name */
+    UINT32          num_val;        /* the numeric value for comparison. If just_works, do not show this number to UI */
+    BOOLEAN         just_works;     /* TRUE, if "Just Works" association model */
+    tBTM_AUTH_REQ   loc_auth_req;   /* Authentication required for local device */
+    tBTM_AUTH_REQ   rmt_auth_req;   /* Authentication required for peer device */
+    tBTM_IO_CAP     loc_io_caps;    /* IO Capabilities of the local device */
+    tBTM_IO_CAP     rmt_io_caps;    /* IO Capabilities of the remot device */
+} tBTM_SP_CFM_REQ;
+
+/* data type for BTM_SP_KEY_REQ_EVT */
+typedef struct
+{
+    BD_ADDR         bd_addr;        /* peer address */
+    DEV_CLASS       dev_class;      /* peer CoD */
+    tBTM_BD_NAME    bd_name;        /* peer device name */
+} tBTM_SP_KEY_REQ;
+
+/* data type for BTM_SP_KEY_NOTIF_EVT */
+typedef struct
+{
+    BD_ADDR         bd_addr;        /* peer address */
+    DEV_CLASS       dev_class;      /* peer CoD */
+    tBTM_BD_NAME    bd_name;        /* peer device name */
+    UINT32          passkey;        /* passkey */
+} tBTM_SP_KEY_NOTIF;
+
+enum
+{
+    BTM_SP_KEY_STARTED,         /* 0 - passkey entry started */
+    BTM_SP_KEY_ENTERED,         /* 1 - passkey digit entered */
+    BTM_SP_KEY_ERASED,          /* 2 - passkey digit erased */
+    BTM_SP_KEY_CLEARED,         /* 3 - passkey cleared */
+    BTM_SP_KEY_COMPLT,          /* 4 - passkey entry completed */
+    BTM_SP_KEY_OUT_OF_RANGE     /* 5 - out of range */
+};
+typedef UINT8   tBTM_SP_KEY_TYPE;
+
+/* data type for BTM_SP_KEYPRESS_EVT */
+typedef struct
+{
+    BD_ADDR             bd_addr;        /* peer address */
+    tBTM_SP_KEY_TYPE   notif_type;
+} tBTM_SP_KEYPRESS;
+
+/* data type for BTM_SP_LOC_OOB_EVT */
+typedef struct
+{
+    tBTM_STATUS     status;         /* */
+    BT_OCTET16      c;              /* Simple Pairing Hash C */
+    BT_OCTET16      r;              /* Simple Pairing Randomnizer R */
+} tBTM_SP_LOC_OOB;
+
+/* data type for BTM_SP_RMT_OOB_EVT */
+typedef struct
+{
+    BD_ADDR         bd_addr;        /* peer address */
+    DEV_CLASS       dev_class;      /* peer CoD */
+    tBTM_BD_NAME    bd_name;        /* peer device name */
+} tBTM_SP_RMT_OOB;
+
+
+/* data type for BTM_SP_COMPLT_EVT */
+typedef struct
+{
+    BD_ADDR         bd_addr;        /* peer address */
+    DEV_CLASS       dev_class;      /* peer CoD */
+    tBTM_BD_NAME    bd_name;        /* peer device name */
+    tBTM_STATUS     status;         /* status of the simple pairing process */
+} tBTM_SP_COMPLT;
+
+/* data type for BTM_SP_UPGRADE_EVT */
+typedef struct
+{
+    BD_ADDR         bd_addr;        /* peer address */
+    BOOLEAN         upgrade;        /* TRUE, to upgrade the link key */
+} tBTM_SP_UPGRADE;
+
+typedef union
+{
+    tBTM_SP_IO_REQ      io_req;     /* BTM_SP_IO_REQ_EVT      */
+    tBTM_SP_IO_RSP      io_rsp;     /* BTM_SP_IO_RSP_EVT      */
+    tBTM_SP_CFM_REQ     cfm_req;    /* BTM_SP_CFM_REQ_EVT     */
+    tBTM_SP_KEY_NOTIF   key_notif;  /* BTM_SP_KEY_NOTIF_EVT   */
+    tBTM_SP_KEY_REQ     key_req;    /* BTM_SP_KEY_REQ_EVT     */
+    tBTM_SP_KEYPRESS    key_press;  /* BTM_SP_KEYPRESS_EVT    */
+    tBTM_SP_LOC_OOB     loc_oob;    /* BTM_SP_LOC_OOB_EVT     */
+    tBTM_SP_RMT_OOB     rmt_oob;    /* BTM_SP_RMT_OOB_EVT     */
+    tBTM_SP_COMPLT      complt;     /* BTM_SP_COMPLT_EVT      */
+    tBTM_SP_UPGRADE     upgrade;    /* BTM_SP_UPGRADE_EVT      */
+} tBTM_SP_EVT_DATA;
+
+/* Simple Pairing Events.  Called by the stack when Simple Pairing related
+** events occur.
+*/
+typedef UINT8 (tBTM_SP_CALLBACK) (tBTM_SP_EVT event, tBTM_SP_EVT_DATA *p_data);
+
+
+typedef void (tBTM_MKEY_CALLBACK) (BD_ADDR bd_addr, UINT8 status, UINT8 key_flag) ;
+
+/* Encryption enabled/disabled complete: Optionally passed with BTM_SetEncryption.
+** Parameters are
+**              BD Address of remote
+**              optional data passed in by BTM_SetEncryption
+**              tBTM_STATUS - result of the operation
+*/
+typedef void (tBTM_SEC_CBACK) (BD_ADDR bd_addr, tBT_TRANSPORT trasnport,
+                                void *p_ref_data, tBTM_STATUS result);
+
+/* Bond Cancel complete. Parameters are
+**              Result of the cancel operation
+**
+*/
+typedef void (tBTM_BOND_CANCEL_CMPL_CALLBACK) (tBTM_STATUS result);
+
+/* LE related event and data structure
+*/
+#define BTM_LE_IO_REQ_EVT       SMP_IO_CAP_REQ_EVT     /* received IO_CAPABILITY_REQUEST event */
+#define BTM_LE_SEC_REQUEST_EVT  SMP_SEC_REQUEST_EVT    /* security request event */
+#define BTM_LE_KEY_NOTIF_EVT    SMP_PASSKEY_NOTIF_EVT  /* received USER_PASSKEY_NOTIFY event */
+#define BTM_LE_KEY_REQ_EVT      SMP_PASSKEY_REQ_EVT    /* received USER_PASSKEY_REQUEST event */
+#define BTM_LE_OOB_REQ_EVT      SMP_OOB_REQ_EVT        /* OOB data request event */
+#define BTM_LE_NC_REQ_EVT       SMP_NC_REQ_EVT          /* Numeric Comparison request event */
+#define BTM_LE_PR_KEYPR_NOT_EVT SMP_PEER_KEYPR_NOT_EVT /* Peer keypress notification recd event */
+/* SC OOB request event (both local and peer OOB data) can be expected in response */
+#define BTM_LE_SC_OOB_REQ_EVT   SMP_SC_OOB_REQ_EVT
+/* SC OOB local data set is created (as result of SMP_CrLocScOobData(...)) */
+#define BTM_LE_SC_LOC_OOB_EVT   SMP_SC_LOC_OOB_DATA_UP_EVT
+#define BTM_LE_BR_KEYS_REQ_EVT  SMP_BR_KEYS_REQ_EVT     /* SMP over BR keys request event */
+#define BTM_LE_COMPLT_EVT       SMP_COMPLT_EVT         /* SMP complete event */
+#define BTM_LE_LAST_FROM_SMP    BTM_LE_BR_KEYS_REQ_EVT
+#define BTM_LE_KEY_EVT          BTM_LE_LAST_FROM_SMP + 1 /* KEY update event */
+typedef UINT8 tBTM_LE_EVT;
+
+#define BTM_LE_KEY_NONE           0
+#define BTM_LE_KEY_PENC      SMP_SEC_KEY_TYPE_ENC        /* encryption information of peer device */
+#define BTM_LE_KEY_PID       SMP_SEC_KEY_TYPE_ID         /* identity key of the peer device */
+#define BTM_LE_KEY_PCSRK     SMP_SEC_KEY_TYPE_CSRK      /* peer SRK */
+#define BTM_LE_KEY_PLK       SMP_SEC_KEY_TYPE_LK
+#define BTM_LE_KEY_LLK       (SMP_SEC_KEY_TYPE_LK << 4)
+#define BTM_LE_KEY_LENC      (SMP_SEC_KEY_TYPE_ENC << 4)  /* master role security information:div */
+#define BTM_LE_KEY_LID       (SMP_SEC_KEY_TYPE_ID << 4)   /* master device ID key */
+#define BTM_LE_KEY_LCSRK     (SMP_SEC_KEY_TYPE_CSRK << 4) /* local CSRK has been deliver to peer */
+typedef UINT8 tBTM_LE_KEY_TYPE;
+
+#define BTM_LE_AUTH_REQ_NO_BOND SMP_AUTH_NO_BOND   /* 0 */
+#define BTM_LE_AUTH_REQ_BOND    SMP_AUTH_GEN_BOND  /* 1 << 0 */
+#define BTM_LE_AUTH_REQ_MITM    SMP_AUTH_YN_BIT    /* 1 << 2 */
+typedef UINT8 tBTM_LE_AUTH_REQ;
+#define BTM_LE_SC_SUPPORT_BIT           SMP_SC_SUPPORT_BIT     /* (1 << 3) */
+#define BTM_LE_KP_SUPPORT_BIT           SMP_KP_SUPPORT_BIT     /* (1 << 4) */
+
+#define BTM_LE_AUTH_REQ_SC_ONLY         SMP_AUTH_SC_ENC_ONLY    /* 1 << 3 */
+#define BTM_LE_AUTH_REQ_SC_BOND         SMP_AUTH_SC_GB          /* 1001 */
+#define BTM_LE_AUTH_REQ_SC_MITM         SMP_AUTH_SC_MITM_NB     /* 1100 */
+#define BTM_LE_AUTH_REQ_SC_MITM_BOND    SMP_AUTH_SC_MITM_GB     /* 1101 */
+#define BTM_LE_AUTH_REQ_MASK            SMP_AUTH_MASK           /* 0x1D */
+
+/* LE security level */
+#define BTM_LE_SEC_NONE             SMP_SEC_NONE
+#define BTM_LE_SEC_UNAUTHENTICATE   SMP_SEC_UNAUTHENTICATE      /* 1 */
+#define BTM_LE_SEC_AUTHENTICATED    SMP_SEC_AUTHENTICATED       /* 4 */
+typedef UINT8 tBTM_LE_SEC;
+
+
+typedef struct
+{
+    tBTM_IO_CAP         io_cap;         /* local IO capabilities */
+    UINT8               oob_data;       /* OOB data present (locally) for the peer device */
+    tBTM_LE_AUTH_REQ    auth_req;       /* Authentication request (for local device) contain bonding and MITM info */
+    UINT8               max_key_size;   /* max encryption key size */
+    tBTM_LE_KEY_TYPE    init_keys;      /* keys to be distributed, bit mask */
+    tBTM_LE_KEY_TYPE    resp_keys;      /* keys to be distributed, bit mask */
+} tBTM_LE_IO_REQ;
+
+#if BLE_INCLUDED == TRUE && SMP_INCLUDED == TRUE
+/* data type for tBTM_LE_COMPLT */
+typedef struct
+{
+    UINT8 reason;
+    UINT8 sec_level;
+    BOOLEAN is_pair_cancel;
+    BOOLEAN smp_over_br;
+}tBTM_LE_COMPLT;
+#endif
+
+/* BLE encryption keys */
+typedef struct
+{
+    BT_OCTET16  ltk;
+    BT_OCTET8   rand;
+    UINT16      ediv;
+    UINT8       sec_level;
+    UINT8       key_size;
+}tBTM_LE_PENC_KEYS;
+
+/* BLE CSRK keys */
+typedef struct
+{
+    UINT32          counter;
+    BT_OCTET16      csrk;
+    UINT8           sec_level;
+}tBTM_LE_PCSRK_KEYS;
+
+/* BLE Encryption reproduction keys */
+typedef struct
+{
+    BT_OCTET16  ltk;
+    UINT16      div;
+    UINT8       key_size;
+    UINT8       sec_level;
+}tBTM_LE_LENC_KEYS;
+
+/* BLE SRK keys */
+typedef struct
+{
+    UINT32          counter;
+    UINT16          div;
+    UINT8           sec_level;
+    BT_OCTET16      csrk;
+}tBTM_LE_LCSRK_KEYS;
+
+typedef struct
+{
+    BT_OCTET16          irk;
+    tBLE_ADDR_TYPE      addr_type;
+    BD_ADDR             static_addr;
+}tBTM_LE_PID_KEYS;
+
+typedef union
+{
+    tBTM_LE_PENC_KEYS   penc_key;       /* received peer encryption key */
+    tBTM_LE_PCSRK_KEYS  pcsrk_key;      /* received peer device SRK */
+    tBTM_LE_PID_KEYS    pid_key;        /* peer device ID key */
+    tBTM_LE_LENC_KEYS   lenc_key;       /* local encryption reproduction keys LTK = = d1(ER,DIV,0)*/
+    tBTM_LE_LCSRK_KEYS   lcsrk_key;     /* local device CSRK = d1(ER,DIV,1)*/
+}tBTM_LE_KEY_VALUE;
+
+typedef struct
+{
+    tBTM_LE_KEY_TYPE        key_type;
+    tBTM_LE_KEY_VALUE       *p_key_value;
+}tBTM_LE_KEY;
+
+typedef union
+{
+    tBTM_LE_IO_REQ      io_req;     /* BTM_LE_IO_REQ_EVT      */
+    UINT32              key_notif;  /* BTM_LE_KEY_NOTIF_EVT   */
+                                    /* BTM_LE_NC_REQ_EVT */
+                                    /* no callback data for BTM_LE_KEY_REQ_EVT */
+                                    /* and BTM_LE_OOB_REQ_EVT  */
+#if BLE_INCLUDED == TRUE && SMP_INCLUDED == TRUE
+    tBTM_LE_COMPLT      complt;     /* BTM_LE_COMPLT_EVT      */
+    tSMP_OOB_DATA_TYPE  req_oob_type;
+#endif
+    tBTM_LE_KEY         key;
+} tBTM_LE_EVT_DATA;
+
+/* Simple Pairing Events.  Called by the stack when Simple Pairing related
+** events occur.
+*/
+typedef UINT8 (tBTM_LE_CALLBACK) (tBTM_LE_EVT event, BD_ADDR bda, tBTM_LE_EVT_DATA *p_data);
+
+#define BTM_BLE_KEY_TYPE_ID         1
+#define BTM_BLE_KEY_TYPE_ER         2
+#define BTM_BLE_KEY_TYPE_COUNTER    3  //tobe obsolete
+
+typedef struct
+{
+    BT_OCTET16       ir;
+    BT_OCTET16       irk;
+    BT_OCTET16       dhk;
+
+}tBTM_BLE_LOCAL_ID_KEYS;
+
+typedef union
+{
+    tBTM_BLE_LOCAL_ID_KEYS  id_keys;
+    BT_OCTET16              er;
+}tBTM_BLE_LOCAL_KEYS;
+
+
+/* New LE identity key for local device.
+*/
+typedef void (tBTM_LE_KEY_CALLBACK) (UINT8 key_type, tBTM_BLE_LOCAL_KEYS *p_key);
+
+
+/***************************
+**  Security Manager Types
+****************************/
+/* Structure that applications use to register with BTM_SecRegister */
+typedef struct
+{
+    tBTM_AUTHORIZE_CALLBACK     *p_authorize_callback;
+    tBTM_PIN_CALLBACK           *p_pin_callback;
+    tBTM_LINK_KEY_CALLBACK      *p_link_key_callback;
+    tBTM_AUTH_COMPLETE_CALLBACK *p_auth_complete_callback;
+    tBTM_BOND_CANCEL_CMPL_CALLBACK *p_bond_cancel_cmpl_callback;
+    tBTM_SP_CALLBACK            *p_sp_callback;
+#if BLE_INCLUDED == TRUE
+#if SMP_INCLUDED == TRUE
+    tBTM_LE_CALLBACK            *p_le_callback;
+#endif
+    tBTM_LE_KEY_CALLBACK        *p_le_key_callback;
+#endif
+} tBTM_APPL_INFO;
+
+/* Callback function for when a link supervision timeout event occurs.
+** This asynchronous event is enabled/disabled by calling BTM_RegForLstoEvt().
+*/
+typedef void (tBTM_LSTO_CBACK) (BD_ADDR remote_bda, UINT16 timeout);
+
+/*****************************************************************************
+**  POWER MANAGEMENT
+*****************************************************************************/
+/****************************
+**  Power Manager Constants
+*****************************/
+/* BTM Power manager status codes */
+enum
+{
+    BTM_PM_STS_ACTIVE = HCI_MODE_ACTIVE,
+    BTM_PM_STS_HOLD   = HCI_MODE_HOLD,
+    BTM_PM_STS_SNIFF  = HCI_MODE_SNIFF,
+    BTM_PM_STS_PARK   = HCI_MODE_PARK,
+    BTM_PM_STS_SSR,     /* report the SSR parameters in HCI_SNIFF_SUB_RATE_EVT */
+    BTM_PM_STS_PENDING,   /* when waiting for status from controller */
+    BTM_PM_STS_ERROR   /* when HCI command status returns error */
+};
+typedef UINT8 tBTM_PM_STATUS;
+
+/* BTM Power manager modes */
+enum
+{
+    BTM_PM_MD_ACTIVE = BTM_PM_STS_ACTIVE,
+    BTM_PM_MD_HOLD   = BTM_PM_STS_HOLD,
+    BTM_PM_MD_SNIFF  = BTM_PM_STS_SNIFF,
+    BTM_PM_MD_PARK   = BTM_PM_STS_PARK,
+    BTM_PM_MD_FORCE  = 0x10 /* OR this to force ACL link to a certain mode */
+};
+typedef UINT8 tBTM_PM_MODE;
+
+#define BTM_PM_SET_ONLY_ID  0x80
+
+/* Operation codes */
+#define BTM_PM_REG_SET      1 /* The module wants to set the desired power mode */
+#define BTM_PM_REG_NOTIF    2 /* The module wants to receive mode change event */
+#define BTM_PM_DEREG        4 /* The module does not want to involve with PM anymore */
+
+/************************
+**  Power Manager Types
+*************************/
+typedef struct
+{
+    UINT16          max;
+    UINT16          min;
+    UINT16          attempt;
+    UINT16          timeout;
+    tBTM_PM_MODE    mode;
+} tBTM_PM_PWR_MD;
+
+/*************************************
+**  Power Manager Callback Functions
+**************************************/
+typedef void (tBTM_PM_STATUS_CBACK) (BD_ADDR p_bda, tBTM_PM_STATUS status,
+                                     UINT16 value, UINT8 hci_status);
+
+
+/************************
+**  Stored Linkkey Types
+*************************/
+#define BTM_CB_EVT_DELETE_STORED_LINK_KEYS  4
+
+typedef struct
+{
+    UINT8          event;
+    UINT8          status;
+    UINT16         num_keys;
+
+} tBTM_DELETE_STORED_LINK_KEY_COMPLETE;
+
+/* MIP evnets, callbacks    */
+enum
+{
+    BTM_MIP_MODE_CHG_EVT,
+    BTM_MIP_DISCONNECT_EVT,
+    BTM_MIP_PKTS_COMPL_EVT,
+    BTM_MIP_RXDATA_EVT
+};
+typedef UINT8 tBTM_MIP_EVT;
+
+typedef struct
+{
+    tBTM_MIP_EVT    event;
+    BD_ADDR         bd_addr;
+    UINT16          mip_id;
+} tBTM_MIP_MODE_CHANGE;
+
+typedef struct
+{
+    tBTM_MIP_EVT    event;
+    UINT16          mip_id;
+    UINT8           disc_reason;
+} tBTM_MIP_CONN_TIMEOUT;
+
+#define BTM_MIP_MAX_RX_LEN  17
+
+typedef struct
+{
+    tBTM_MIP_EVT    event;
+    UINT16          mip_id;
+    UINT8           rx_len;
+    UINT8           rx_data[BTM_MIP_MAX_RX_LEN];
+} tBTM_MIP_RXDATA;
+
+typedef struct
+{
+    tBTM_MIP_EVT    event;
+    BD_ADDR         bd_addr;
+    UINT8           data[11];       /* data[0] shows Vender-specific device type */
+} tBTM_MIP_EIR_HANDSHAKE;
+
+typedef struct
+{
+    tBTM_MIP_EVT    event;
+    UINT16          num_sent;       /* Number of packets completed at the controller */
+} tBTM_MIP_PKTS_COMPL;
+
+typedef union
+{
+    tBTM_MIP_EVT            event;
+    tBTM_MIP_MODE_CHANGE    mod_chg;
+    tBTM_MIP_CONN_TIMEOUT   conn_tmo;
+    tBTM_MIP_EIR_HANDSHAKE  eir;
+    tBTM_MIP_PKTS_COMPL     completed;
+    tBTM_MIP_RXDATA         rxdata;
+} tBTM_MIP_EVENT_DATA;
+
+/* MIP event callback function  */
+typedef void (tBTM_MIP_EVENTS_CB) (tBTM_MIP_EVT event, tBTM_MIP_EVENT_DATA data);
+
+/* MIP Device query callback function  */
+typedef BOOLEAN (tBTM_MIP_QUERY_CB) (BD_ADDR dev_addr, UINT8 *p_mode, LINK_KEY link_key);
+
+#define BTM_CONTRL_ACTIVE  1       /* ACL link on, SCO link ongoing, sniff mode */
+#define BTM_CONTRL_SCAN    2       /* Scan state - paging/inquiry/trying to connect*/
+#define BTM_CONTRL_IDLE    3       /* Idle state - page scan, LE advt, inquiry scan */
+
+typedef UINT8 tBTM_CONTRL_STATE;
+
+/*****************************************************************************
+**  EXTERNAL FUNCTION DECLARATIONS
+*****************************************************************************/
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*****************************************************************************
+**  DEVICE CONTROL and COMMON FUNCTIONS
+*****************************************************************************/
+
+/*******************************************************************************
+**
+** Function         BTM_DeviceReset
+**
+** Description      This function is called to reset the controller.The Callback function
+**                  if provided is called when startup of the device has
+**                  completed.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTM_DeviceReset (tBTM_CMPL_CB *p_cb);
+
+
+/*******************************************************************************
+**
+** Function         BTM_IsDeviceUp
+**
+** Description      This function is called to check if the device is up.
+**
+** Returns          TRUE if device is up, else FALSE
+**
+*******************************************************************************/
+extern BOOLEAN BTM_IsDeviceUp (void);
+
+
+/*******************************************************************************
+**
+** Function         BTM_SetLocalDeviceName
+**
+** Description      This function is called to set the local device name.
+**
+** Returns          BTM_CMD_STARTED if successful, otherwise an error
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_SetLocalDeviceName (char *p_name);
+
+/*******************************************************************************
+**
+** Function         BTM_SetDeviceClass
+**
+** Description      This function is called to set the local device class
+**
+** Returns          BTM_SUCCESS if successful, otherwise an error
+**
+*******************************************************************************/
+extern tBTM_STATUS  BTM_SetDeviceClass (DEV_CLASS dev_class);
+
+
+/*******************************************************************************
+**
+** Function         BTM_ReadLocalDeviceName
+**
+** Description      This function is called to read the local device name.
+**
+** Returns          status of the operation
+**                  If success, BTM_SUCCESS is returned and p_name points stored
+**                              local device name
+**                  If BTM doesn't store local device name, BTM_NO_RESOURCES is
+**                              is returned and p_name is set to NULL
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_ReadLocalDeviceName (char **p_name);
+
+/*******************************************************************************
+**
+** Function         BTM_ReadLocalDeviceNameFromController
+**
+** Description      Get local device name from controller. Do not use cached
+**                  name (used to get chip-id prior to btm reset complete).
+**
+** Returns          BTM_CMD_STARTED if successful, otherwise an error
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_ReadLocalDeviceNameFromController (tBTM_CMPL_CB *p_rln_cmpl_cback);
+
+/*******************************************************************************
+**
+** Function         BTM_ReadDeviceClass
+**
+** Description      This function is called to read the local device class
+**
+** Returns          pointer to the device class
+**
+*******************************************************************************/
+extern UINT8 *BTM_ReadDeviceClass (void);
+
+
+/*******************************************************************************
+**
+** Function         BTM_ReadLocalFeatures
+**
+** Description      This function is called to read the local features
+**
+** Returns          pointer to the local features string
+**
+*******************************************************************************/
+extern UINT8 *BTM_ReadLocalFeatures (void);
+
+/*******************************************************************************
+**
+** Function         BTM_RegisterForDeviceStatusNotif
+**
+** Description      This function is called to register for device status
+**                  change notifications.
+**
+** Returns          pointer to previous caller's callback function or NULL if first
+**                  registration.
+**
+*******************************************************************************/
+extern tBTM_DEV_STATUS_CB *BTM_RegisterForDeviceStatusNotif (tBTM_DEV_STATUS_CB *p_cb);
+
+
+/*******************************************************************************
+**
+** Function         BTM_RegisterForVSEvents
+**
+** Description      This function is called to register/deregister for vendor
+**                  specific HCI events.
+**
+**                  If is_register=TRUE, then the function will be registered;
+**                  if is_register=FALSE, then the function will be deregistered.
+**
+** Returns          BTM_SUCCESS if successful,
+**                  BTM_BUSY if maximum number of callbacks have already been
+**                           registered.
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_RegisterForVSEvents (tBTM_VS_EVT_CB *p_cb, BOOLEAN is_register);
+
+
+/*******************************************************************************
+**
+** Function         BTM_VendorSpecificCommand
+**
+** Description      Send a vendor specific HCI command to the controller.
+**
+** Returns
+**      BTM_SUCCESS         Command sent. Does not expect command complete
+**                              event. (command cmpl callback param is NULL)
+**      BTM_CMD_STARTED     Command sent. Waiting for command cmpl event.
+**      BTM_BUSY            Command not sent. Waiting for cmd cmpl event for
+**                              prior command.
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_VendorSpecificCommand(UINT16 opcode,
+                                             UINT8 param_len,
+                                             UINT8 *p_param_buf,
+                                             tBTM_VSC_CMPL_CB *p_cb);
+
+
+/*******************************************************************************
+**
+** Function         BTM_AllocateSCN
+**
+** Description      Look through the Server Channel Numbers for a free one to be
+**                  used with an RFCOMM connection.
+**
+** Returns          Allocated SCN number or 0 if none.
+**
+*******************************************************************************/
+extern UINT8 BTM_AllocateSCN(void);
+
+/*******************************************************************************
+**
+** Function         BTM_TryAllocateSCN
+**
+** Description      Try to allocate a fixed server channel
+**
+** Returns          Returns TRUE if server channel was available
+**
+*******************************************************************************/
+extern BOOLEAN BTM_TryAllocateSCN(UINT8 scn);
+
+
+/*******************************************************************************
+**
+** Function         BTM_FreeSCN
+**
+** Description      Free the specified SCN.
+**
+** Returns          TRUE if successful, FALSE if SCN is not in use or invalid
+**
+*******************************************************************************/
+extern BOOLEAN BTM_FreeSCN(UINT8 scn);
+
+
+/*******************************************************************************
+**
+** Function         BTM_SetTraceLevel
+**
+** Description      This function sets the trace level for BTM.  If called with
+**                  a value of 0xFF, it simply returns the current trace level.
+**
+** Returns          The new or current trace level
+**
+*******************************************************************************/
+extern UINT8 BTM_SetTraceLevel (UINT8 new_level);
+
+
+/*******************************************************************************
+**
+** Function         BTM_WritePageTimeout
+**
+** Description      Send HCI Wite Page Timeout.
+**
+** Returns
+**      BTM_SUCCESS         Command sent.
+**      BTM_NO_RESOURCES    If out of resources to send the command.
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_WritePageTimeout(UINT16 timeout);
+
+/*******************************************************************************
+**
+** Function         BTM_WriteVoiceSettings
+**
+** Description      Send HCI Write Voice Settings command.
+**                  See hcidefs.h for settings bitmask values.
+**
+** Returns
+**      BTM_SUCCESS         Command sent.
+**      BTM_NO_RESOURCES     If out of resources to send the command.
+**
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_WriteVoiceSettings(UINT16 settings);
+
+/*******************************************************************************
+**
+** Function         BTM_EnableTestMode
+**
+** Description      Send HCI the enable device under test command.
+**
+**                  Note: Controller can only be taken out of this mode by
+**                      resetting the controller.
+**
+** Returns
+**      BTM_SUCCESS         Command sent.
+**      BTM_NO_RESOURCES    If out of resources to send the command.
+**
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_EnableTestMode(void);
+
+
+/*****************************************************************************
+**  DEVICE DISCOVERY FUNCTIONS - Inquiry, Remote Name, Discovery, Class of Device
+*****************************************************************************/
+
+/*******************************************************************************
+**
+** Function         BTM_SetDiscoverability
+**
+** Description      This function is called to set the device into or out of
+**                  discoverable mode. Discoverable mode means inquiry
+**                  scans are enabled.  If a value of '0' is entered for window or
+**                  interval, the default values are used.
+**
+** Returns          BTM_SUCCESS if successful
+**                  BTM_BUSY if a setting of the filter is already in progress
+**                  BTM_NO_RESOURCES if couldn't get a memory pool buffer
+**                  BTM_ILLEGAL_VALUE if a bad parameter was detected
+**                  BTM_WRONG_MODE if the device is not up.
+**
+*******************************************************************************/
+extern tBTM_STATUS  BTM_SetDiscoverability (UINT16 inq_mode, UINT16 window,
+                                            UINT16 interval);
+
+
+/*******************************************************************************
+**
+** Function         BTM_ReadDiscoverability
+**
+** Description      This function is called to read the current discoverability
+**                  mode of the device.
+**
+** Output Params:   p_window - current inquiry scan duration
+**                  p_interval - current inquiry scan interval
+**
+** Returns          BTM_NON_DISCOVERABLE, BTM_LIMITED_DISCOVERABLE, or
+**                  BTM_GENERAL_DISCOVERABLE
+**
+*******************************************************************************/
+extern UINT16       BTM_ReadDiscoverability (UINT16 *p_window,
+                                             UINT16 *p_interval);
+
+
+/*******************************************************************************
+**
+** Function         BTM_SetPeriodicInquiryMode
+**
+** Description      This function is called to set the device periodic inquiry mode.
+**                  If the duration is zero, the periodic inquiry mode is cancelled.
+**
+** Parameters:      p_inqparms - pointer to the inquiry information
+**                      mode - GENERAL or LIMITED inquiry
+**                      duration - length in 1.28 sec intervals (If '0', the inquiry is CANCELLED)
+**                      max_resps - maximum amount of devices to search for before ending the inquiry
+**                      filter_cond_type - BTM_CLR_INQUIRY_FILTER, BTM_FILTER_COND_DEVICE_CLASS, or
+**                                         BTM_FILTER_COND_BD_ADDR
+**                      filter_cond - value for the filter (based on filter_cond_type)
+**
+**                  max_delay - maximum amount of time between successive inquiries
+**                  min_delay - minimum amount of time between successive inquiries
+**                  p_results_cb - callback returning pointer to results (tBTM_INQ_RESULTS)
+**
+** Returns          BTM_CMD_STARTED if successfully started
+**                  BTM_ILLEGAL_VALUE if a bad parameter is detected
+**                  BTM_NO_RESOURCES if could not allocate a message buffer
+**                  BTM_SUCCESS - if cancelling the periodic inquiry
+**                  BTM_BUSY - if an inquiry is already active
+**                  BTM_WRONG_MODE if the device is not up.
+**
+*******************************************************************************/
+extern tBTM_STATUS  BTM_SetPeriodicInquiryMode (tBTM_INQ_PARMS *p_inqparms,
+                                                UINT16 max_delay, UINT16 min_delay,
+                                                tBTM_INQ_RESULTS_CB *p_results_cb);
+
+
+/*******************************************************************************
+**
+** Function         BTM_StartInquiry
+**
+** Description      This function is called to start an inquiry.
+**
+** Parameters:      p_inqparms - pointer to the inquiry information
+**                      mode - GENERAL or LIMITED inquiry
+**                      duration - length in 1.28 sec intervals (If '0', the inquiry is CANCELLED)
+**                      max_resps - maximum amount of devices to search for before ending the inquiry
+**                      filter_cond_type - BTM_CLR_INQUIRY_FILTER, BTM_FILTER_COND_DEVICE_CLASS, or
+**                                         BTM_FILTER_COND_BD_ADDR
+**                      filter_cond - value for the filter (based on filter_cond_type)
+**
+**                  p_results_cb   - Pointer to the callback routine which gets called
+**                                upon receipt of an inquiry result. If this field is
+**                                NULL, the application is not notified.
+**
+**                  p_cmpl_cb   - Pointer to the callback routine which gets called
+**                                upon completion.  If this field is NULL, the
+**                                application is not notified when completed.
+** Returns          tBTM_STATUS
+**                  BTM_CMD_STARTED if successfully initiated
+**                  BTM_BUSY if already in progress
+**                  BTM_ILLEGAL_VALUE if parameter(s) are out of range
+**                  BTM_NO_RESOURCES if could not allocate resources to start the command
+**                  BTM_WRONG_MODE if the device is not up.
+**
+*******************************************************************************/
+extern tBTM_STATUS  BTM_StartInquiry (tBTM_INQ_PARMS *p_inqparms,
+                                      tBTM_INQ_RESULTS_CB *p_results_cb,
+                                      tBTM_CMPL_CB *p_cmpl_cb);
+
+
+/*******************************************************************************
+**
+** Function         BTM_IsInquiryActive
+**
+** Description      This function returns a bit mask of the current inquiry state
+**
+** Returns          BTM_INQUIRY_INACTIVE if inactive (0)
+**                  BTM_LIMITED_INQUIRY_ACTIVE if a limted inquiry is active
+**                  BTM_GENERAL_INQUIRY_ACTIVE if a general inquiry is active
+**                  BTM_PERIODIC_INQUIRY_ACTIVE if a periodic inquiry is active
+**
+*******************************************************************************/
+extern UINT16 BTM_IsInquiryActive (void);
+
+
+/*******************************************************************************
+**
+** Function         BTM_CancelInquiry
+**
+** Description      This function cancels an inquiry if active
+**
+** Returns          BTM_SUCCESS if successful
+**                  BTM_NO_RESOURCES if could not allocate a message buffer
+**                  BTM_WRONG_MODE if the device is not up.
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_CancelInquiry(void);
+
+
+/*******************************************************************************
+**
+** Function         BTM_CancelPeriodicInquiry
+**
+** Description      This function cancels a periodic inquiry
+**
+** Returns
+**                  BTM_NO_RESOURCES if could not allocate a message buffer
+**                  BTM_SUCCESS - if cancelling the periodic inquiry
+**                  BTM_WRONG_MODE if the device is not up.
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_CancelPeriodicInquiry(void);
+
+
+/*******************************************************************************
+**
+** Function         BTM_SetConnectability
+**
+** Description      This function is called to set the device into or out of
+**                  connectable mode. Discoverable mode means page scans enabled.
+**
+** Returns          BTM_SUCCESS if successful
+**                  BTM_ILLEGAL_VALUE if a bad parameter is detected
+**                  BTM_NO_RESOURCES if could not allocate a message buffer
+**                  BTM_WRONG_MODE if the device is not up.
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_SetConnectability (UINT16 page_mode, UINT16 window,
+                                          UINT16 interval);
+
+
+/*******************************************************************************
+**
+** Function         BTM_ReadConnectability
+**
+** Description      This function is called to read the current discoverability
+**                  mode of the device.
+** Output Params    p_window - current page scan duration
+**                  p_interval - current time between page scans
+**
+** Returns          BTM_NON_CONNECTABLE or BTM_CONNECTABLE
+**
+*******************************************************************************/
+extern UINT16 BTM_ReadConnectability (UINT16 *p_window, UINT16 *p_interval);
+
+
+/*******************************************************************************
+**
+** Function         BTM_SetInquiryMode
+**
+** Description      This function is called to set standard, with RSSI
+**                  mode or extended of the inquiry for local device.
+**
+** Input Params:    BTM_INQ_RESULT_STANDARD, BTM_INQ_RESULT_WITH_RSSI or
+**                  BTM_INQ_RESULT_EXTENDED
+**
+** Returns          BTM_SUCCESS if successful
+**                  BTM_NO_RESOURCES if couldn't get a memory pool buffer
+**                  BTM_ILLEGAL_VALUE if a bad parameter was detected
+**                  BTM_WRONG_MODE if the device is not up.
+**
+*******************************************************************************/
+extern tBTM_STATUS  BTM_SetInquiryMode (UINT8 mode);
+
+/*******************************************************************************
+**
+** Function         BTM_SetInquiryScanType
+**
+** Description      This function is called to set the iquiry scan-type to
+**                  standard or interlaced.
+**
+** Input Params:    BTM_SCAN_TYPE_STANDARD or BTM_SCAN_TYPE_INTERLACED
+**
+** Returns          BTM_SUCCESS if successful
+**                  BTM_MODE_UNSUPPORTED if not a 1.2 device
+**                  BTM_WRONG_MODE if the device is not up.
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_SetInquiryScanType (UINT16 scan_type);
+
+/*******************************************************************************
+**
+** Function         BTM_SetPageScanType
+**
+** Description      This function is called to set the page scan-type to
+**                  standard or interlaced.
+**
+** Input Params:    BTM_SCAN_TYPE_STANDARD or BTM_SCAN_TYPE_INTERLACED
+**
+** Returns          BTM_SUCCESS if successful
+**                  BTM_MODE_UNSUPPORTED if not a 1.2 device
+**                  BTM_WRONG_MODE if the device is not up.
+**
+*******************************************************************************/
+
+extern tBTM_STATUS BTM_SetPageScanType (UINT16 scan_type);
+
+/*******************************************************************************
+**
+** Function         BTM_ReadRemoteDeviceName
+**
+** Description      This function initiates a remote device HCI command to the
+**                  controller and calls the callback when the process has completed.
+**
+** Input Params:    remote_bda      - device address of name to retrieve
+**                  p_cb            - callback function called when BTM_CMD_STARTED
+**                                    is returned.
+**                                    A pointer to tBTM_REMOTE_DEV_NAME is passed to the
+**                                    callback.
+**
+** Returns
+**                  BTM_CMD_STARTED is returned if the request was successfully sent
+**                                  to HCI.
+**                  BTM_BUSY if already in progress
+**                  BTM_UNKNOWN_ADDR if device address is bad
+**                  BTM_NO_RESOURCES if could not allocate resources to start the command
+**                  BTM_WRONG_MODE if the device is not up.
+**
+*******************************************************************************/
+extern tBTM_STATUS  BTM_ReadRemoteDeviceName (BD_ADDR remote_bda,
+                                              tBTM_CMPL_CB *p_cb,
+                                              tBT_TRANSPORT transport);
+
+
+/*******************************************************************************
+**
+** Function         BTM_CancelRemoteDeviceName
+**
+** Description      This function initiates the cancel request for the specified
+**                  remote device.
+**
+** Input Params:    None
+**
+** Returns
+**                  BTM_CMD_STARTED is returned if the request was successfully sent
+**                                  to HCI.
+**                  BTM_NO_RESOURCES if could not allocate resources to start the command
+**                  BTM_WRONG_MODE if there is not an active remote name request.
+**
+*******************************************************************************/
+extern tBTM_STATUS  BTM_CancelRemoteDeviceName (void);
+
+/*******************************************************************************
+**
+** Function         BTM_ReadRemoteVersion
+**
+** Description      This function is called to read a remote device's version
+**
+** Returns          BTM_SUCCESS if successful, otherwise an error
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_ReadRemoteVersion (BD_ADDR addr,
+                                          UINT8 *lmp_version,
+                                          UINT16 *manufacturer,
+                                          UINT16 *lmp_sub_version);
+
+/*******************************************************************************
+**
+** Function         BTM_ReadRemoteFeatures
+**
+** Description      This function is called to read a remote device's
+**                  supported features mask (features mask located at page 0)
+**
+**                  Note: The size of device features mask page is
+**                  BTM_FEATURE_BYTES_PER_PAGE bytes.
+**
+** Returns          pointer to the remote supported features mask
+**
+*******************************************************************************/
+extern UINT8 *BTM_ReadRemoteFeatures (BD_ADDR addr);
+
+/*******************************************************************************
+**
+** Function         BTM_ReadRemoteExtendedFeatures
+**
+** Description      This function is called to read a specific extended features
+**                  page of the remote device
+**
+**                  Note1: The size of device features mask page is
+**                  BTM_FEATURE_BYTES_PER_PAGE bytes.
+**                  Note2: The valid device features mask page number depends on
+**                  the remote device capabilities. It is expected to be in the
+**                  range [0 - BTM_EXT_FEATURES_PAGE_MAX].
+
+** Returns          pointer to the remote extended features mask
+**                  or NULL if page_number is not valid
+**
+*******************************************************************************/
+extern UINT8 *BTM_ReadRemoteExtendedFeatures (BD_ADDR addr, UINT8 page_number);
+
+/*******************************************************************************
+**
+** Function         BTM_ReadNumberRemoteFeaturesPages
+**
+** Description      This function is called to retrieve the number of feature pages
+**                  read from the remote device
+**
+** Returns          number of features pages read from the remote device
+**
+*******************************************************************************/
+extern UINT8 BTM_ReadNumberRemoteFeaturesPages (BD_ADDR addr);
+
+/*******************************************************************************
+**
+** Function         BTM_ReadAllRemoteFeatures
+**
+** Description      This function is called to read all features of the remote device
+**
+** Returns          pointer to the byte[0] of the page[0] of the remote device
+**                  feature mask.
+**
+** Note:            the function returns the pointer to the array of the size
+**                  BTM_FEATURE_BYTES_PER_PAGE * (BTM_EXT_FEATURES_PAGE_MAX + 1).
+**
+*******************************************************************************/
+extern UINT8 *BTM_ReadAllRemoteFeatures (BD_ADDR addr);
+
+/*******************************************************************************
+**
+** Function         BTM_InqDbRead
+**
+** Description      This function looks through the inquiry database for a match
+**                  based on Bluetooth Device Address. This is the application's
+**                  interface to get the inquiry details of a specific BD address.
+**
+** Returns          pointer to entry, or NULL if not found
+**
+*******************************************************************************/
+extern tBTM_INQ_INFO *BTM_InqDbRead (BD_ADDR p_bda);
+
+
+/*******************************************************************************
+**
+** Function         BTM_InqDbFirst
+**
+** Description      This function looks through the inquiry database for the first
+**                  used entry, and returns that. This is used in conjunction with
+**                  BTM_InqDbNext by applications as a way to walk through the
+**                  inquiry database.
+**
+** Returns          pointer to first in-use entry, or NULL if DB is empty
+**
+*******************************************************************************/
+extern tBTM_INQ_INFO *BTM_InqDbFirst (void);
+
+
+/*******************************************************************************
+**
+** Function         BTM_InqDbNext
+**
+** Description      This function looks through the inquiry database for the next
+**                  used entry, and returns that.  If the input parameter is NULL,
+**                  the first entry is returned.
+**
+** Returns          pointer to next in-use entry, or NULL if no more found.
+**
+*******************************************************************************/
+extern tBTM_INQ_INFO *BTM_InqDbNext (tBTM_INQ_INFO *p_cur);
+
+
+/*******************************************************************************
+**
+** Function         BTM_ClearInqDb
+**
+** Description      This function is called to clear out a device or all devices
+**                  from the inquiry database.
+**
+** Parameter        p_bda - (input) BD_ADDR ->  Address of device to clear
+**                                              (NULL clears all entries)
+**
+** Returns          BTM_BUSY if an inquiry, get remote name, or event filter
+**                          is active, otherwise BTM_SUCCESS
+**
+*******************************************************************************/
+extern tBTM_STATUS  BTM_ClearInqDb (BD_ADDR p_bda);
+
+/*******************************************************************************
+**
+** Function         BTM_ReadInquiryRspTxPower
+**
+** Description      This command will read the inquiry Transmit Power level used
+**                  to transmit the FHS and EIR data packets.
+**                  This can be used directly in the Tx Power Level EIR data type.
+**
+** Returns          BTM_SUCCESS if successful
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_ReadInquiryRspTxPower (tBTM_CMPL_CB *p_cb);
+
+/*******************************************************************************
+**
+** Function         BTM_StartDiscovery
+**
+** Description      This function is called by an application (or profile)
+**                  when it wants to trigger an service discovery using the
+**                  BTM's discovery database.
+**
+** Returns          tBTM_STATUS
+**                      BTM_CMD_STARTED if the discovery was initiated
+**                      BTM_BUSY if one is already in progress
+**                      BTM_UNKNOWN_ADDR if no addresses are in the INQ DB
+**                      BTM_ERR_PROCESSING if err initiating the command
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_StartDiscovery (tBTM_CMPL_CB *p_cmpl_cb,
+                                       BD_ADDR_PTR p_rem_addr);
+
+
+/*******************************************************************************
+**
+** Function         BTM_FindAttribute
+**
+** Description      This function is called by an application (or profile)
+**                  when it wants to see if an attribute exists in the BTM
+**                  discovery database.
+**
+** Returns          Pointer to matching record, or NULL
+**
+*******************************************************************************/
+extern tSDP_DISC_REC *BTM_FindAttribute (UINT16 attr_id,
+                                         tSDP_DISC_REC *p_start_rec);
+
+
+/*******************************************************************************
+**
+** Function         BTM_FindService
+**
+** Description      This function is called by an application (or profile)
+**                  when it wants to see if a service exists in the BTM
+**                  discovery database.
+**
+** Returns          Pointer to matching record, or NULL
+**
+*******************************************************************************/
+extern tSDP_DISC_REC *BTM_FindService (UINT16 service_uuid,
+                                       tSDP_DISC_REC *p_start_rec);
+
+
+/*******************************************************************************
+**
+** Function         BTM_SetDiscoveryParams
+**
+** Description      This function is called to set the BTM default discovery parameters.
+**                  These UUID and attribute filters are used during the call to
+**                  BTM_StartDiscovery.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTM_SetDiscoveryParams (UINT16 num_uuid, tSDP_UUID *p_uuid_list,
+                                    UINT16 num_attr, UINT16 *p_attr_list);
+
+
+/*****************************************************************************
+**  ACL CHANNEL MANAGEMENT FUNCTIONS
+*****************************************************************************/
+/*******************************************************************************
+**
+** Function         BTM_SetLinkPolicy
+**
+** Description      Create and send HCI "Write Policy Set" command
+**
+** Returns          BTM_CMD_STARTED if successfully initiated, otherwise error
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_SetLinkPolicy (BD_ADDR remote_bda,
+                                      UINT16 *settings);
+
+/*******************************************************************************
+**
+** Function         BTM_SetDefaultLinkPolicy
+**
+** Description      Set the default value for HCI "Write Policy Set" command
+**                  to use when an ACL link is created.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTM_SetDefaultLinkPolicy (UINT16 settings);
+
+
+/*******************************************************************************
+**
+** Function         BTM_SetDefaultLinkSuperTout
+**
+** Description      Set the default value for HCI "Write Link Supervision Timeout"
+**                  command to use when an ACL link is created.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTM_SetDefaultLinkSuperTout (UINT16 timeout);
+
+
+/*******************************************************************************
+**
+** Function         BTM_SetLinkSuperTout
+**
+** Description      Create and send HCI "Write Link Supervision Timeout" command
+**
+** Returns          BTM_CMD_STARTED if successfully initiated, otherwise error
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_SetLinkSuperTout (BD_ADDR remote_bda,
+                                         UINT16 timeout);
+/*******************************************************************************
+**
+** Function         BTM_GetLinkSuperTout
+**
+** Description      Read the link supervision timeout value of the connection
+**
+** Returns          status of the operation
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_GetLinkSuperTout (BD_ADDR remote_bda,
+                                         UINT16 *p_timeout);
+
+/*******************************************************************************
+**
+** Function         BTM_IsAclConnectionUp
+**
+** Description      This function is called to check if an ACL connection exists
+**                  to a specific remote BD Address.
+**
+** Returns          TRUE if connection is up, else FALSE.
+**
+*******************************************************************************/
+extern BOOLEAN BTM_IsAclConnectionUp (BD_ADDR remote_bda, tBT_TRANSPORT transport);
+
+
+/*******************************************************************************
+**
+** Function         BTM_GetRole
+**
+** Description      This function is called to get the role of the local device
+**                  for the ACL connection with the specified remote device
+**
+** Returns          BTM_SUCCESS if connection exists.
+**                  BTM_UNKNOWN_ADDR if no active link with bd addr specified
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_GetRole (BD_ADDR remote_bd_addr, UINT8 *p_role);
+
+
+
+/*******************************************************************************
+**
+** Function         BTM_SwitchRole
+**
+** Description      This function is called to switch role between master and
+**                  slave.  If role is already set it will do nothing.  If the
+**                  command was initiated, the callback function is called upon
+**                  completion.
+**
+** Returns          BTM_SUCCESS if already in specified role.
+**                  BTM_CMD_STARTED if command issued to controller.
+**                  BTM_NO_RESOURCES if couldn't allocate memory to issue command
+**                  BTM_UNKNOWN_ADDR if no active link with bd addr specified
+**                  BTM_MODE_UNSUPPORTED if local device does not support role switching
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_SwitchRole (BD_ADDR remote_bd_addr,
+                                   UINT8 new_role,
+                                   tBTM_CMPL_CB *p_cb);
+
+/*******************************************************************************
+**
+** Function         BTM_ReadRSSI
+**
+** Description      This function is called to read the link policy settings.
+**                  The address of link policy results are returned in the callback.
+**                  (tBTM_RSSI_RESULTS)
+**
+** Returns          BTM_CMD_STARTED if command issued to controller.
+**                  BTM_NO_RESOURCES if couldn't allocate memory to issue command
+**                  BTM_UNKNOWN_ADDR if no active link with bd addr specified
+**                  BTM_BUSY if command is already in progress
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_ReadRSSI (BD_ADDR remote_bda, tBTM_CMPL_CB *p_cb);
+
+
+/*******************************************************************************
+**
+** Function         BTM_ReadTxPower
+**
+** Description      This function is called to read the current connection
+**                  TX power of the connection. The TX power level results
+**                  are returned in the callback.
+**                  (tBTM_RSSI_RESULTS)
+**
+** Returns          BTM_CMD_STARTED if command issued to controller.
+**                  BTM_NO_RESOURCES if couldn't allocate memory to issue command
+**                  BTM_UNKNOWN_ADDR if no active link with bd addr specified
+**                  BTM_BUSY if command is already in progress
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_ReadTxPower (BD_ADDR remote_bda,
+                                    tBT_TRANSPORT transport, tBTM_CMPL_CB *p_cb);
+
+/*******************************************************************************
+**
+** Function         BTM_ReadLinkQuality
+**
+** Description      This function is called to read the link quality.
+**                  The value of the link quality is returned in the callback.
+**                  (tBTM_LINK_QUALITY_RESULTS)
+**
+** Returns          BTM_CMD_STARTED if command issued to controller.
+**                  BTM_NO_RESOURCES if couldn't allocate memory to issue command
+**                  BTM_UNKNOWN_ADDR if no active link with bd addr specified
+**                  BTM_BUSY if command is already in progress
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_ReadLinkQuality (BD_ADDR remote_bda, tBTM_CMPL_CB *p_cb);
+
+/*******************************************************************************
+**
+** Function         BTM_RegBusyLevelNotif
+**
+** Description      This function is called to register a callback to receive
+**                  busy level change events.
+**
+** Returns          BTM_SUCCESS if successfully registered, otherwise error
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_RegBusyLevelNotif (tBTM_BL_CHANGE_CB *p_cb, UINT8 *p_level,
+                                          tBTM_BL_EVENT_MASK evt_mask);
+
+/*******************************************************************************
+**
+** Function         BTM_AclRegisterForChanges
+**
+** Description      This function is called to register a callback to receive
+**                  ACL database change events, i.e. new connection or removed.
+**
+** Returns          BTM_SUCCESS if successfully initiated, otherwise error
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_AclRegisterForChanges (tBTM_ACL_DB_CHANGE_CB *p_cb);
+
+/*******************************************************************************
+**
+** Function         BTM_GetNumAclLinks
+**
+** Description      This function is called to count the number of
+**                  ACL links that are active.
+**
+** Returns          UINT16  Number of active ACL links
+**
+*******************************************************************************/
+extern UINT16 BTM_GetNumAclLinks (void);
+
+/*******************************************************************************
+**
+** Function         BTM_SetQoS
+**
+** Description      This function is called to setup QoS
+**
+** Returns          BTM_CMD_STARTED if successfully initiated, otherwise error
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_SetQoS(BD_ADDR bd, FLOW_SPEC *p_flow,
+                              tBTM_CMPL_CB *p_cb);
+
+
+/*****************************************************************************
+**  (e)SCO CHANNEL MANAGEMENT FUNCTIONS
+*****************************************************************************/
+/*******************************************************************************
+**
+** Function         BTM_CreateSco
+**
+** Description      This function is called to create an SCO connection. If the
+**                  "is_orig" flag is TRUE, the connection will be originated,
+**                  otherwise BTM will wait for the other side to connect.
+**
+** Returns          BTM_UNKNOWN_ADDR if the ACL connection is not up
+**                  BTM_BUSY         if another SCO being set up to
+**                                   the same BD address
+**                  BTM_NO_RESOURCES if the max SCO limit has been reached
+**                  BTM_CMD_STARTED  if the connection establishment is started.
+**                                   In this case, "*p_sco_inx" is filled in
+**                                   with the sco index used for the connection.
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_CreateSco (BD_ADDR remote_bda, BOOLEAN is_orig,
+                                  UINT16 pkt_types, UINT16 *p_sco_inx,
+                                  tBTM_SCO_CB *p_conn_cb,
+                                  tBTM_SCO_CB *p_disc_cb);
+
+
+/*******************************************************************************
+**
+** Function         BTM_RemoveSco
+**
+** Description      This function is called to remove a specific SCO connection.
+**
+** Returns          BTM_CMD_STARTED if successfully initiated, otherwise error
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_RemoveSco (UINT16 sco_inx);
+
+
+/*******************************************************************************
+**
+** Function         BTM_SetScoPacketTypes
+**
+** Description      This function is called to set the packet types used for
+**                  a specific SCO connection,
+**
+** Parameters       pkt_types - One or more of the following
+**                  BTM_SCO_PKT_TYPES_MASK_HV1
+**                  BTM_SCO_PKT_TYPES_MASK_HV2
+**                  BTM_SCO_PKT_TYPES_MASK_HV3
+**                  BTM_SCO_PKT_TYPES_MASK_EV3
+**                  BTM_SCO_PKT_TYPES_MASK_EV4
+**                  BTM_SCO_PKT_TYPES_MASK_EV5
+**
+**                  BTM_SCO_LINK_ALL_MASK   - enables all supported types
+**
+** Returns          BTM_CMD_STARTED if successfully initiated, otherwise error
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_SetScoPacketTypes (UINT16 sco_inx, UINT16 pkt_types);
+
+
+/*******************************************************************************
+**
+** Function         BTM_ReadScoPacketTypes
+**
+** Description      This function is read the packet types used for a specific
+**                  SCO connection.
+**
+** Returns       One or more of the following (bitmask)
+**                  BTM_SCO_PKT_TYPES_MASK_HV1
+**                  BTM_SCO_PKT_TYPES_MASK_HV2
+**                  BTM_SCO_PKT_TYPES_MASK_HV3
+**                  BTM_SCO_PKT_TYPES_MASK_EV3
+**                  BTM_SCO_PKT_TYPES_MASK_EV4
+**                  BTM_SCO_PKT_TYPES_MASK_EV5
+**
+** Returns          packet types supported for the connection
+**
+*******************************************************************************/
+extern UINT16 BTM_ReadScoPacketTypes (UINT16 sco_inx);
+
+
+/*******************************************************************************
+**
+** Function         BTM_ReadDeviceScoPacketTypes
+**
+** Description      This function is read the SCO packet types that
+**                  the device supports.
+**
+** Returns          packet types supported by the device.
+**
+*******************************************************************************/
+extern UINT16 BTM_ReadDeviceScoPacketTypes (void);
+
+
+/*******************************************************************************
+**
+** Function         BTM_ReadScoHandle
+**
+** Description      This function is used to read the HCI handle used for a specific
+**                  SCO connection,
+**
+** Returns          handle for the connection, or 0xFFFF if invalid SCO index.
+**
+*******************************************************************************/
+extern UINT16 BTM_ReadScoHandle (UINT16 sco_inx);
+
+
+/*******************************************************************************
+**
+** Function         BTM_ReadScoBdAddr
+**
+** Description      This function is read the remote BD Address for a specific
+**                  SCO connection,
+**
+** Returns          pointer to BD address or NULL if not known
+**
+*******************************************************************************/
+extern UINT8 *BTM_ReadScoBdAddr (UINT16 sco_inx);
+
+
+/*******************************************************************************
+**
+** Function         BTM_ReadScoDiscReason
+**
+** Description      This function is returns the reason why an (e)SCO connection
+**                  has been removed. It contains the value until read, or until
+**                  another (e)SCO connection has disconnected.
+**
+** Returns          HCI reason or BTM_INVALID_SCO_DISC_REASON if not set.
+**
+*******************************************************************************/
+extern UINT16 BTM_ReadScoDiscReason (void);
+
+
+/*******************************************************************************
+**
+** Function         BTM_SetEScoMode
+**
+** Description      This function sets up the negotiated parameters for SCO or
+**                  eSCO, and sets as the default mode used for calls to
+**                  BTM_CreateSco.  It can be called only when there are no
+**                  active (e)SCO links.
+**
+** Returns          BTM_SUCCESS if the successful.
+**                  BTM_BUSY if there are one or more active (e)SCO links.
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_SetEScoMode (tBTM_SCO_TYPE sco_mode,
+                                    tBTM_ESCO_PARAMS *p_parms);
+
+/*******************************************************************************
+**
+** Function         BTM_SetWBSCodec
+**
+** Description      This function sends command to the controller to setup
+**                  WBS codec for the upcoming eSCO connection.
+**
+** Returns          BTM_SUCCESS.
+**
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_SetWBSCodec (tBTM_SCO_CODEC_TYPE codec_type);
+
+/*******************************************************************************
+**
+** Function         BTM_RegForEScoEvts
+**
+** Description      This function registers a SCO event callback with the
+**                  specified instance.  It should be used to received
+**                  connection indication events and change of link parameter
+**                  events.
+**
+** Returns          BTM_SUCCESS if the successful.
+**                  BTM_ILLEGAL_VALUE if there is an illegal sco_inx
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_RegForEScoEvts (UINT16 sco_inx,
+                                       tBTM_ESCO_CBACK *p_esco_cback);
+
+/*******************************************************************************
+**
+** Function         BTM_ReadEScoLinkParms
+**
+** Description      This function returns the current eSCO link parameters for
+**                  the specified handle.  This can be called anytime a connection
+**                  is active, but is typically called after receiving the SCO
+**                  opened callback.
+**
+**                  Note: If called over a 1.1 controller, only the packet types
+**                        field has meaning.
+**                  Note: If the upper layer doesn't know the current sco index,
+**                  BTM_FIRST_ACTIVE_SCO_INDEX can be used as the first parameter to
+**                  find the first active SCO index
+**
+** Returns          BTM_SUCCESS if returned data is valid connection.
+**                  BTM_ILLEGAL_VALUE if no connection for specified sco_inx.
+**                  BTM_MODE_UNSUPPORTED if local controller does not support
+**                      1.2 specification.
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_ReadEScoLinkParms (UINT16 sco_inx,
+                                          tBTM_ESCO_DATA *p_parms);
+
+/*******************************************************************************
+**
+** Function         BTM_ChangeEScoLinkParms
+**
+** Description      This function requests renegotiation of the parameters on
+**                  the current eSCO Link.  If any of the changes are accepted
+**                  by the controllers, the BTM_ESCO_CHG_EVT event is sent in
+**                  the tBTM_ESCO_CBACK function with the current settings of
+**                  the link. The callback is registered through the call to
+**                  BTM_SetEScoMode.
+**
+**
+** Returns          BTM_CMD_STARTED if command is successfully initiated.
+**                  BTM_ILLEGAL_VALUE if no connection for specified sco_inx.
+**                  BTM_NO_RESOURCES - not enough resources to initiate command.
+**                  BTM_MODE_UNSUPPORTED if local controller does not support
+**                      1.2 specification.
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_ChangeEScoLinkParms (UINT16 sco_inx,
+                                            tBTM_CHG_ESCO_PARAMS *p_parms);
+
+/*******************************************************************************
+**
+** Function         BTM_EScoConnRsp
+**
+** Description      This function is called upon receipt of an (e)SCO connection
+**                  request event (BTM_ESCO_CONN_REQ_EVT) to accept or reject
+**                  the request. Parameters used to negotiate eSCO links.
+**                  If p_parms is NULL, then values set through BTM_SetEScoMode
+**                  are used.
+**                  If the link type of the incoming request is SCO, then only
+**                  the tx_bw, max_latency, content format, and packet_types are
+**                  valid.  The hci_status parameter should be
+**                  ([0x0] to accept, [0x0d..0x0f] to reject)
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTM_EScoConnRsp (UINT16 sco_inx, UINT8 hci_status,
+                             tBTM_ESCO_PARAMS *p_parms);
+
+/*******************************************************************************
+**
+** Function         BTM_GetNumScoLinks
+**
+** Description      This function returns the number of active SCO links.
+**
+** Returns          UINT8
+**
+*******************************************************************************/
+extern UINT8 BTM_GetNumScoLinks (void);
+
+/*****************************************************************************
+**  SECURITY MANAGEMENT FUNCTIONS
+*****************************************************************************/
+/*******************************************************************************
+**
+** Function         BTM_SecRegister
+**
+** Description      Application manager calls this function to register for
+**                  security services.  There can be one and only one application
+**                  saving link keys.  BTM allows only first registration.
+**
+** Returns          TRUE if registered OK, else FALSE
+**
+*******************************************************************************/
+extern BOOLEAN BTM_SecRegister (tBTM_APPL_INFO *p_cb_info);
+
+/*******************************************************************************
+**
+** Function         BTM_SecRegisterLinkKeyNotificationCallback
+**
+** Description      Profiles can register to be notified when a new Link Key
+**                  is generated per connection.
+**
+** Returns          TRUE if registered OK, else FALSE
+**
+*******************************************************************************/
+extern BOOLEAN BTM_SecRegisterLinkKeyNotificationCallback(
+                                                        tBTM_LINK_KEY_CALLBACK *p_callback);
+
+/*******************************************************************************
+**
+** Function         BTM_SecAddRmtNameNotifyCallback
+**
+** Description      Profiles can register to be notified when name of the
+**                  remote device is resolved (up to BTM_SEC_MAX_RMT_NAME_CALLBACKS).
+**
+** Returns          TRUE if registered OK, else FALSE
+**
+*******************************************************************************/
+extern BOOLEAN BTM_SecAddRmtNameNotifyCallback (tBTM_RMT_NAME_CALLBACK *p_callback);
+
+
+/*******************************************************************************
+**
+** Function         BTM_SecDeleteRmtNameNotifyCallback
+**
+** Description      A profile can deregister notification when a new Link Key
+**                  is generated per connection.
+**
+** Returns          TRUE if OK, else FALSE
+**
+*******************************************************************************/
+extern BOOLEAN BTM_SecDeleteRmtNameNotifyCallback (tBTM_RMT_NAME_CALLBACK *p_callback);
+
+/*******************************************************************************
+**
+** Function         BTM_GetSecurityFlags
+**
+** Description      Get security flags for the device
+**
+** Returns          BOOLEAN TRUE or FALSE is device found
+**
+*******************************************************************************/
+extern BOOLEAN BTM_GetSecurityFlags (BD_ADDR bd_addr, UINT8 * p_sec_flags);
+
+/*******************************************************************************
+**
+** Function         BTM_GetSecurityFlagsByTransport
+**
+** Description      Get security flags for the device on a particular transport
+**
+** Parameters      bd_addr: BD address of remote device
+**                  p_sec_flags : Out parameter to be filled with security flags for the connection
+**                  transport :  Physical transport of the connection (BR/EDR or LE)
+**
+** Returns          BOOLEAN TRUE or FALSE is device found
+**
+*******************************************************************************/
+extern BOOLEAN BTM_GetSecurityFlagsByTransport (BD_ADDR bd_addr,
+                                                UINT8 * p_sec_flags, tBT_TRANSPORT transport);
+
+/*******************************************************************************
+**
+** Function         BTM_ReadTrustedMask
+**
+** Description      Get trusted mask for the device
+**
+** Returns          NULL, if the device record is not found.
+**                  otherwise, the trusted mask
+**
+*******************************************************************************/
+extern UINT32 * BTM_ReadTrustedMask (BD_ADDR bd_addr);
+
+/*******************************************************************************
+**
+** Function         BTM_SetPinType
+**
+** Description      Set PIN type for the device.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTM_SetPinType (UINT8 pin_type, PIN_CODE pin_code, UINT8 pin_code_len);
+
+
+/*******************************************************************************
+**
+** Function         BTM_SetPairableMode
+**
+** Description      Enable or disable pairing
+**
+** Parameters       allow_pairing - (TRUE or FALSE) whether or not the device
+**                      allows pairing.
+**                  connect_only_paired - (TRUE or FALSE) whether or not to
+**                      only allow paired devices to connect.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTM_SetPairableMode (BOOLEAN allow_pairing, BOOLEAN connect_only_paired);
+
+/*******************************************************************************
+**
+** Function         BTM_SetSecureConnectionsOnly
+**
+** Description      Enable or disable default treatment for Mode 4 Level 0 services
+**
+** Parameter        secure_connections_only_mode - (TRUE or FALSE)
+**                  TRUE means that the device should treat Mode 4 Level 0 services as
+**                  services of other levels.
+**                  FALSE means that the device should provide default treatment for
+**                  Mode 4 Level 0 services.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTM_SetSecureConnectionsOnly (BOOLEAN secure_connections_only_mode);
+
+/*******************************************************************************
+**
+** Function         BTM_SetSecurityLevel
+**
+** Description      Register service security level with Security Manager.  Each
+**                  service must register its requirements regardless of the
+**                  security level that is used.  This API is called once for originators
+**                  nad again for acceptors of connections.
+**
+** Returns          TRUE if registered OK, else FALSE
+**
+*******************************************************************************/
+extern BOOLEAN BTM_SetSecurityLevel (BOOLEAN is_originator, char *p_name,
+                                     UINT8 service_id, UINT16 sec_level,
+                                     UINT16 psm, UINT32 mx_proto_id,
+                                     UINT32 mx_chan_id);
+
+/*******************************************************************************
+**
+** Function         BTM_SetOutService
+**
+** Description      This function is called to set the service for
+**                  outgoing connection.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTM_SetOutService(BD_ADDR bd_addr, UINT8 service_id, UINT32 mx_chan_id);
+
+/*******************************************************************************
+**
+** Function         BTM_SecClrService
+**
+** Description      Removes specified service record(s) from the security database.
+**                  All service records with the specified name are removed.
+**                  Typically used only by devices with limited RAM so that it can
+**                  reuse an old security service record.
+**                          records (except SDP).
+**
+** Returns          Number of records that were freed.
+**
+*******************************************************************************/
+extern UINT8 BTM_SecClrService (UINT8 service_id);
+
+/*******************************************************************************
+**
+** Function         BTM_SecAddDevice
+**
+** Description      Add/modify device.  This function will be normally called
+**                  during host startup to restore all required information
+**                  stored in the NVRAM.
+**                  dev_class, bd_name, link_key, and features are NULL if unknown
+**
+** Returns          TRUE if added OK, else FALSE
+**
+*******************************************************************************/
+extern BOOLEAN BTM_SecAddDevice (BD_ADDR bd_addr, DEV_CLASS dev_class,
+                                 BD_NAME bd_name, UINT8 *features,
+                                 UINT32 trusted_mask[], LINK_KEY link_key,
+                                 UINT8 key_type, tBTM_IO_CAP io_cap, UINT8 pin_length);
+
+
+/*******************************************************************************
+**
+** Function         BTM_SecDeleteDevice
+**
+** Description      Free resources associated with the device.
+**
+** Returns          TRUE if rmoved OK, FALSE if not found
+**
+*******************************************************************************/
+extern BOOLEAN BTM_SecDeleteDevice (BD_ADDR bd_addr);
+
+
+/*******************************************************************************
+**
+** Function         BTM_SecGetDeviceLinkKey
+**
+** Description      This function is called to obtain link key for the device
+**                  it returns BTM_SUCCESS if link key is available, or
+**                  BTM_UNKNOWN_ADDR if Security Manager does not know about
+**                  the device or device record does not contain link key info
+**
+** Returns          BTM_SUCCESS if successful, otherwise error code
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_SecGetDeviceLinkKey (BD_ADDR bd_addr,
+                                            LINK_KEY link_key);
+
+
+/*******************************************************************************
+**
+** Function         BTM_SecGetDeviceLinkKeyType
+**
+** Description      This function is called to obtain link key type for the
+**                  device.
+**                  it returns BTM_SUCCESS if link key is available, or
+**                  BTM_UNKNOWN_ADDR if Security Manager does not know about
+**                  the device or device record does not contain link key info
+**
+** Returns          BTM_LKEY_TYPE_IGNORE if link key is unknown, link type
+**                  otherwise.
+**
+*******************************************************************************/
+extern tBTM_LINK_KEY_TYPE BTM_SecGetDeviceLinkKeyType (BD_ADDR bd_addr);
+
+
+/*******************************************************************************
+**
+** Function         BTM_PINCodeReply
+**
+** Description      This function is called after Security Manager submitted
+**                  PIN code request to the UI.
+**
+** Parameters:      bd_addr      - Address of the device for which PIN was requested
+**                  res          - result of the operation BTM_SUCCESS if success
+**                  pin_len      - length in bytes of the PIN Code
+**                  p_pin        - pointer to array with the PIN Code
+**                  trusted_mask - bitwise OR of trusted services (array of UINT32)
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTM_PINCodeReply (BD_ADDR bd_addr, UINT8 res, UINT8 pin_len,
+                              UINT8 *p_pin, UINT32 trusted_mask[]);
+
+
+/*******************************************************************************
+**
+** Function         BTM_SecBond
+**
+** Description      This function is called to perform bonding with peer device.
+**
+** Parameters:      bd_addr      - Address of the device to bond
+**                  pin_len      - length in bytes of the PIN Code
+**                  p_pin        - pointer to array with the PIN Code
+**                  trusted_mask - bitwise OR of trusted services (array of UINT32)
+
+** Returns          BTM_CMD_STARTED if successfully initiated, otherwise error
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_SecBond (BD_ADDR bd_addr,
+                                UINT8 pin_len, UINT8 *p_pin,
+                                UINT32 trusted_mask[]);
+
+/*******************************************************************************
+**
+** Function         BTM_SecBondByTransport
+**
+** Description      This function is called to perform bonding by designated transport
+**
+** Parameters:      bd_addr      - Address of the device to bond
+**                  pin_len      - length in bytes of the PIN Code
+**                  p_pin        - pointer to array with the PIN Code
+**                  trusted_mask - bitwise OR of trusted services (array of UINT32)
+**                  transport :  Physical transport to use for bonding (BR/EDR or LE)
+**
+** Returns          BTM_CMD_STARTED if successfully initiated, otherwise error
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_SecBondByTransport (BD_ADDR bd_addr,
+                                           tBT_TRANSPORT transport,
+                                           UINT8 pin_len, UINT8 *p_pin,
+                                           UINT32 trusted_mask[]);
+
+/*******************************************************************************
+**
+** Function         BTM_SecBondCancel
+**
+** Description      This function is called to cancel ongoing bonding process
+**                  with peer device.
+**
+** Returns          BTM_CMD_STARTED if successfully initiated, otherwise error
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_SecBondCancel (BD_ADDR bd_addr);
+
+/*******************************************************************************
+**
+** Function         BTM_SetEncryption
+**
+** Description      This function is called to ensure that connection is
+**                  encrypted.  Should be called only on an open connection.
+**                  Typically only needed for connections that first want to
+**                  bring up unencrypted links, then later encrypt them.
+**
+** Parameters:      bd_addr       - Address of the peer device
+**                  transport     - Link transport
+**                  p_callback    - Pointer to callback function called if
+**                                  this function returns PENDING after required
+**                                  procedures are completed.  Can be set to NULL
+**                                  if status is not desired.
+**                  p_ref_data    - pointer to any data the caller wishes to receive
+**                                  in the callback function upon completion.
+**                                  can be set to NULL if not used.
+**                  sec_act       - LE security action, unused for BR/EDR
+**
+** Returns          BTM_SUCCESS   - already encrypted
+**                  BTM_PENDING   - command will be returned in the callback
+**                  BTM_WRONG_MODE- connection not up.
+**                  BTM_BUSY      - security procedures are currently active
+**                  BTM_MODE_UNSUPPORTED - if security manager not linked in.
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_SetEncryption (BD_ADDR bd_addr, tBT_TRANSPORT transport,
+                                      tBTM_SEC_CBACK *p_callback,
+                                      void *p_ref_data, tBTM_BLE_SEC_ACT sec_act);
+
+/*******************************************************************************
+**
+** Function         BTM_ConfirmReqReply
+**
+** Description      This function is called to confirm the numeric value for
+**                  Simple Pairing in response to BTM_SP_CFM_REQ_EVT
+**
+** Parameters:      res           - result of the operation BTM_SUCCESS if success
+**                  bd_addr       - Address of the peer device
+**
+*******************************************************************************/
+extern void BTM_ConfirmReqReply(tBTM_STATUS res, BD_ADDR bd_addr);
+
+/*******************************************************************************
+**
+** Function         BTM_PasskeyReqReply
+**
+** Description      This function is called to provide the passkey for
+**                  Simple Pairing in response to BTM_SP_KEY_REQ_EVT
+**
+** Parameters:      res           - result of the operation BTM_SUCCESS if success
+**                  bd_addr       - Address of the peer device
+**                  passkey       - numeric value in the range of 0 - 999999(0xF423F).
+**
+*******************************************************************************/
+extern void BTM_PasskeyReqReply(tBTM_STATUS res, BD_ADDR bd_addr, UINT32 passkey);
+
+/*******************************************************************************
+**
+** Function         BTM_SendKeypressNotif
+**
+** Description      This function is used during the passkey entry model
+**                  by a device with KeyboardOnly IO capabilities
+**                  (very likely to be a HID Device).
+**                  It is called by a HID Device to inform the remote device when
+**                  a key has been entered or erased.
+**
+** Parameters:      bd_addr - Address of the peer device
+**                  type - notification type
+**
+*******************************************************************************/
+extern void BTM_SendKeypressNotif(BD_ADDR bd_addr, tBTM_SP_KEY_TYPE type);
+
+/*******************************************************************************
+**
+** Function         BTM_IoCapRsp
+**
+** Description      This function is called in response to BTM_SP_IO_REQ_EVT
+**                  When the event data io_req.oob_data is set to BTM_OOB_UNKNOWN
+**                  by the tBTM_SP_CALLBACK implementation, this function is
+**                  called to provide the actual response
+**
+** Parameters:      bd_addr - Address of the peer device
+**                  io_cap  - The IO capability of local device.
+**                  oob     - BTM_OOB_NONE or BTM_OOB_PRESENT.
+**                  auth_req- MITM protection required or not.
+**
+*******************************************************************************/
+extern void BTM_IoCapRsp(BD_ADDR bd_addr, tBTM_IO_CAP io_cap,
+                         tBTM_OOB_DATA oob, tBTM_AUTH_REQ auth_req);
+
+/*******************************************************************************
+**
+** Function         BTM_ReadLocalOobData
+**
+** Description      This function is called to read the local OOB data from
+**                  LM
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_ReadLocalOobData(void);
+
+/*******************************************************************************
+**
+** Function         BTM_RemoteOobDataReply
+**
+** Description      This function is called to provide the remote OOB data for
+**                  Simple Pairing in response to BTM_SP_RMT_OOB_EVT
+**
+** Parameters:      bd_addr     - Address of the peer device
+**                  c           - simple pairing Hash C.
+**                  r           - simple pairing Randomizer  C.
+**
+*******************************************************************************/
+extern void BTM_RemoteOobDataReply(tBTM_STATUS res, BD_ADDR bd_addr,
+                                   BT_OCTET16 c, BT_OCTET16 r);
+
+/*******************************************************************************
+**
+** Function         BTM_BuildOobData
+**
+** Description      This function is called to build the OOB data payload to
+**                  be sent over OOB (non-Bluetooth) link
+**
+** Parameters:      p_data  - the location for OOB data
+**                  max_len - p_data size.
+**                  c       - simple pairing Hash C.
+**                  r       - simple pairing Randomizer  C.
+**                  name_len- 0, local device name would not be included.
+**                            otherwise, the local device name is included for
+**                            up to this specified length
+**
+** Returns          Number of bytes in p_data.
+**
+*******************************************************************************/
+extern UINT16 BTM_BuildOobData(UINT8 *p_data, UINT16 max_len, BT_OCTET16 c,
+                               BT_OCTET16 r, UINT8 name_len);
+
+/*******************************************************************************
+**
+** Function         BTM_BothEndsSupportSecureConnections
+**
+** Description      This function is called to check if both the local device and the peer device
+**                   specified by bd_addr support BR/EDR Secure Connections.
+**
+** Parameters:      bd_addr - address of the peer
+**
+** Returns          TRUE if BR/EDR Secure Connections are supported by both local
+**                  and the remote device.
+**                  else FALSE.
+**
+*******************************************************************************/
+extern BOOLEAN BTM_BothEndsSupportSecureConnections(BD_ADDR bd_addr);
+
+/*******************************************************************************
+**
+** Function         BTM_PeerSupportsSecureConnections
+**
+** Description      This function is called to check if the peer supports
+**                  BR/EDR Secure Connections.
+**
+** Parameters:      bd_addr - address of the peer
+**
+** Returns          TRUE if BR/EDR Secure Connections are supported by the peer,
+**                  else FALSE.
+**
+*******************************************************************************/
+extern BOOLEAN BTM_PeerSupportsSecureConnections(BD_ADDR bd_addr);
+
+/*******************************************************************************
+**
+** Function         BTM_ReadOobData
+**
+** Description      This function is called to parse the OOB data payload
+**                  received over OOB (non-Bluetooth) link
+**
+** Parameters:      p_data  - the location for OOB data
+**                  eir_tag - The associated EIR tag to read the data.
+**                  *p_len(output) - the length of the data with the given tag.
+**
+** Returns          the beginning of the data with the given tag.
+**                  NULL, if the tag is not found.
+**
+*******************************************************************************/
+extern UINT8 * BTM_ReadOobData(UINT8 *p_data, UINT8 eir_tag, UINT8 *p_len);
+
+/*******************************************************************************
+**
+** Function         BTM_SecReadDevName
+**
+** Description      Looks for the device name in the security database for the
+**                  specified BD address.
+**
+** Returns          Pointer to the name or NULL
+**
+*******************************************************************************/
+extern char *BTM_SecReadDevName (BD_ADDR bd_addr);
+
+
+/*****************************************************************************
+**  POWER MANAGEMENT FUNCTIONS
+*****************************************************************************/
+/*******************************************************************************
+**
+** Function         BTM_PmRegister
+**
+** Description      register or deregister with power manager
+**
+** Returns          BTM_SUCCESS if successful,
+**                  BTM_NO_RESOURCES if no room to hold registration
+**                  BTM_ILLEGAL_VALUE
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_PmRegister (UINT8 mask, UINT8 *p_pm_id,
+                                   tBTM_PM_STATUS_CBACK *p_cb);
+
+
+/*******************************************************************************
+**
+** Function         BTM_SetPowerMode
+**
+** Description      store the mode in control block or
+**                  alter ACL connection behavior.
+**
+** Returns          BTM_SUCCESS if successful,
+**                  BTM_UNKNOWN_ADDR if bd addr is not active or bad
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_SetPowerMode (UINT8 pm_id, BD_ADDR remote_bda,
+                                     tBTM_PM_PWR_MD *p_mode);
+
+
+/*******************************************************************************
+**
+** Function         BTM_ReadPowerMode
+**
+** Description      This returns the current mode for a specific
+**                  ACL connection.
+**
+** Input Param      remote_bda - device address of desired ACL connection
+**
+** Output Param     p_mode - address where the current mode is copied into.
+**                          BTM_ACL_MODE_NORMAL
+**                          BTM_ACL_MODE_HOLD
+**                          BTM_ACL_MODE_SNIFF
+**                          BTM_ACL_MODE_PARK
+**                          (valid only if return code is BTM_SUCCESS)
+**
+** Returns          BTM_SUCCESS if successful,
+**                  BTM_UNKNOWN_ADDR if bd addr is not active or bad
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_ReadPowerMode (BD_ADDR remote_bda,
+                                      tBTM_PM_MODE *p_mode);
+
+/*******************************************************************************
+**
+** Function         BTM_SetSsrParams
+**
+** Description      This sends the given SSR parameters for the given ACL
+**                  connection if it is in ACTIVE mode.
+**
+** Input Param      remote_bda - device address of desired ACL connection
+**                  max_lat    - maximum latency (in 0.625ms)(0-0xFFFE)
+**                  min_rmt_to - minimum remote timeout
+**                  min_loc_to - minimum local timeout
+**
+**
+** Returns          BTM_SUCCESS if the HCI command is issued successful,
+**                  BTM_UNKNOWN_ADDR if bd addr is not active or bad
+**                  BTM_CMD_STORED if the command is stored
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_SetSsrParams (BD_ADDR remote_bda, UINT16 max_lat,
+                                     UINT16 min_rmt_to, UINT16 min_loc_to);
+
+/*******************************************************************************
+**
+** Function         BTM_GetHCIConnHandle
+**
+** Description      This function is called to get the handle for an ACL connection
+**                  to a specific remote BD Address.
+**
+** Returns          the handle of the connection, or 0xFFFF if none.
+**
+*******************************************************************************/
+extern UINT16 BTM_GetHCIConnHandle (BD_ADDR remote_bda, tBT_TRANSPORT transport);
+
+/*******************************************************************************
+**
+** Function         BTM_DeleteStoredLinkKey
+**
+** Description      This function is called to delete link key for the specified
+**                  device addresses from the NVRAM storage attached to the Bluetooth
+**                  controller.
+**
+** Parameters:      bd_addr      - Addresses of the devices
+**                  p_cb         - Call back function to be called to return
+**                                 the results
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_DeleteStoredLinkKey(BD_ADDR bd_addr, tBTM_CMPL_CB *p_cb);
+
+/*******************************************************************************
+**
+** Function         BTM_WriteEIR
+**
+** Description      This function is called to write EIR data to controller.
+**
+** Parameters       p_buff - allocated HCI command buffer including extended
+**                           inquriry response
+**
+** Returns          BTM_SUCCESS  - if successful
+**                  BTM_MODE_UNSUPPORTED - if local device cannot support it
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_WriteEIR( BT_HDR * p_buff );
+
+/*******************************************************************************
+**
+** Function         BTM_CheckEirData
+**
+** Description      This function is called to get EIR data from significant part.
+**
+** Parameters       p_eir - pointer of EIR significant part
+**                  type   - finding EIR data type
+**                  p_length - return the length of EIR data
+**
+** Returns          pointer of EIR data
+**
+*******************************************************************************/
+extern UINT8 *BTM_CheckEirData( UINT8 *p_eir, UINT8 type, UINT8 *p_length );
+
+/*******************************************************************************
+**
+** Function         BTM_HasEirService
+**
+** Description      This function is called to know if UUID in bit map of UUID.
+**
+** Parameters       p_eir_uuid - bit map of UUID list
+**                  uuid16 - UUID 16-bit
+**
+** Returns          TRUE - if found
+**                  FALSE - if not found
+**
+*******************************************************************************/
+extern BOOLEAN BTM_HasEirService( UINT32 *p_eir_uuid, UINT16 uuid16 );
+
+/*******************************************************************************
+**
+** Function         BTM_HasInquiryEirService
+**
+** Description      This function is called to know if UUID in bit map of UUID list.
+**
+** Parameters       p_results - inquiry results
+**                  uuid16 - UUID 16-bit
+**
+** Returns          BTM_EIR_FOUND - if found
+**                  BTM_EIR_NOT_FOUND - if not found and it is complete list
+**                  BTM_EIR_UNKNOWN - if not found and it is not complete list
+**
+*******************************************************************************/
+extern tBTM_EIR_SEARCH_RESULT BTM_HasInquiryEirService( tBTM_INQ_RESULTS *p_results,
+                                                        UINT16 uuid16 );
+
+/*******************************************************************************
+**
+** Function         BTM_AddEirService
+**
+** Description      This function is called to add a service in bit map of UUID list.
+**
+** Parameters       p_eir_uuid - bit mask of UUID list for EIR
+**                  uuid16 - UUID 16-bit
+**
+** Returns          None
+**
+*******************************************************************************/
+extern void BTM_AddEirService( UINT32 *p_eir_uuid, UINT16 uuid16 );
+
+/*******************************************************************************
+**
+** Function         BTM_RemoveEirService
+**
+** Description      This function is called to remove a service in bit map of UUID list.
+**
+** Parameters       p_eir_uuid - bit mask of UUID list for EIR
+**                  uuid16 - UUID 16-bit
+**
+** Returns          None
+**
+*******************************************************************************/
+extern void BTM_RemoveEirService( UINT32 *p_eir_uuid, UINT16 uuid16 );
+
+/*******************************************************************************
+**
+** Function         BTM_GetEirSupportedServices
+**
+** Description      This function is called to get UUID list from bit map of UUID list.
+**
+** Parameters       p_eir_uuid - bit mask of UUID list for EIR
+**                  p - reference of current pointer of EIR
+**                  max_num_uuid16 - max number of UUID can be written in EIR
+**                  num_uuid16 - number of UUID have been written in EIR
+**
+** Returns          BTM_EIR_MORE_16BITS_UUID_TYPE, if it has more than max
+**                  BTM_EIR_COMPLETE_16BITS_UUID_TYPE, otherwise
+**
+*******************************************************************************/
+extern UINT8 BTM_GetEirSupportedServices( UINT32 *p_eir_uuid,    UINT8 **p,
+                                          UINT8  max_num_uuid16, UINT8 *p_num_uuid16);
+
+/*******************************************************************************
+**
+** Function         BTM_GetEirUuidList
+**
+** Description      This function parses EIR and returns UUID list.
+**
+** Parameters       p_eir - EIR
+**                  uuid_size - LEN_UUID_16, LEN_UUID_32, LEN_UUID_128
+**                  p_num_uuid - return number of UUID in found list
+**                  p_uuid_list - return UUID 16-bit list
+**                  max_num_uuid - maximum number of UUID to be returned
+**
+** Returns          0 - if not found
+**                  BTM_EIR_COMPLETE_16BITS_UUID_TYPE
+**                  BTM_EIR_MORE_16BITS_UUID_TYPE
+**                  BTM_EIR_COMPLETE_32BITS_UUID_TYPE
+**                  BTM_EIR_MORE_32BITS_UUID_TYPE
+**                  BTM_EIR_COMPLETE_128BITS_UUID_TYPE
+**                  BTM_EIR_MORE_128BITS_UUID_TYPE
+**
+*******************************************************************************/
+extern UINT8 BTM_GetEirUuidList( UINT8 *p_eir, UINT8 uuid_size, UINT8 *p_num_uuid,
+                                 UINT8 *p_uuid_list, UINT8 max_num_uuid);
+
+/*****************************************************************************
+**  SCO OVER HCI
+*****************************************************************************/
+/*******************************************************************************
+**
+** Function         BTM_ConfigScoPath
+**
+** Description      This function enable/disable SCO over HCI and registers SCO
+**                  data callback if SCO over HCI is enabled.
+**
+** Parameter        path: SCO or HCI
+**                  p_sco_data_cb: callback function or SCO data if path is set
+**                                 to transport.
+**                  p_pcm_param: pointer to the PCM interface parameter. If a NULL
+**                               pointer is used, PCM parameter maintained in
+**                               the control block will be used; otherwise update
+**                               control block value.
+**                  err_data_rpt: Lisbon feature to enable the erronous data report
+**                                or not.
+**
+** Returns          BTM_SUCCESS if the successful.
+**                  BTM_NO_RESOURCES: no rsource to start the command.
+**                  BTM_ILLEGAL_VALUE: invalid callback function pointer.
+**                  BTM_CMD_STARTED :Command sent. Waiting for command cmpl event.
+**
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_ConfigScoPath (tBTM_SCO_ROUTE_TYPE path,
+                                      tBTM_SCO_DATA_CB *p_sco_data_cb,
+                                      tBTM_SCO_PCM_PARAM *p_pcm_param,
+                                      BOOLEAN err_data_rpt);
+
+/*******************************************************************************
+**
+** Function         BTM_WriteScoData
+**
+** Description      This function write SCO data to a specified instance. The data
+**                  to be written p_buf needs to carry an offset of
+**                  HCI_SCO_PREAMBLE_SIZE bytes, and the data length can not
+**                  exceed BTM_SCO_DATA_SIZE_MAX bytes, whose default value is set
+**                  to 60 and is configurable. Data longer than the maximum bytes
+**                  will be truncated.
+**
+** Returns          BTM_SUCCESS: data write is successful
+**                  BTM_ILLEGAL_VALUE: SCO data contains illegal offset value.
+**                  BTM_SCO_BAD_LENGTH: SCO data length exceeds the max SCO packet
+**                                      size.
+**                  BTM_NO_RESOURCES: no resources.
+**                  BTM_UNKNOWN_ADDR: unknown SCO connection handle, or SCO is not
+**                                    routed via HCI.
+**
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_WriteScoData (UINT16 sco_inx, BT_HDR *p_buf);
+
+/*******************************************************************************
+**
+** Function         BTM_SetARCMode
+**
+** Description      Send Audio Routing Control command.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTM_SetARCMode (UINT8 iface, UINT8 arc_mode, tBTM_VSC_CMPL_CB *p_arc_cb);
+
+
+/*******************************************************************************
+**
+** Function         BTM_PCM2Setup_Write
+**
+** Description      Send PCM2_Setup write command.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTM_PCM2Setup_Write (BOOLEAN clk_master, tBTM_VSC_CMPL_CB *p_arc_cb);
+
+
+/*******************************************************************************
+**
+** Function         BTM_PM_ReadControllerState
+**
+** Description      This function is called to obtain the controller state
+**
+** Returns          Controller state (BTM_CONTRL_ACTIVE, BTM_CONTRL_SCAN, and BTM_CONTRL_IDLE)
+**
+*******************************************************************************/
+extern tBTM_CONTRL_STATE BTM_PM_ReadControllerState(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* BTM_API_H */
diff --git a/rtkbt/code/bt/stack/include/btm_ble_api.h b/rtkbt/code/bt/stack/include/btm_ble_api.h
new file mode 100755
index 0000000..054d294
--- /dev/null
+++ b/rtkbt/code/bt/stack/include/btm_ble_api.h
@@ -0,0 +1,1890 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains the Bluetooth Manager (BTM) API function external
+ *  definitions.
+ *
+ ******************************************************************************/
+#ifndef BTM_BLE_API_H
+#define BTM_BLE_API_H
+
+#include "btm_api.h"
+#include "bt_common.h"
+#include "osi/include/alarm.h"
+#include <hardware/bt_common_types.h>
+
+#define CHNL_MAP_LEN    5
+typedef UINT8 tBTM_BLE_CHNL_MAP[CHNL_MAP_LEN];
+
+/* 0x00-0x04 only used for set advertising parameter command */
+#define BTM_BLE_CONNECT_EVT     0x00   /* 0x00-0x04 only used for set advertising
+                                            parameter command */
+#define BTM_BLE_CONNECT_DIR_EVT 0x01   /* Connectable directed advertising */
+#define BTM_BLE_DISCOVER_EVT    0x02  /* Scannable undirected advertising */
+#define BTM_BLE_NON_CONNECT_EVT 0x03  /* Non connectable undirected advertising */
+#define BTM_BLE_CONNECT_LO_DUTY_DIR_EVT 0x04        /* Connectable low duty
+                                                       cycle directed advertising  */
+    /* 0x00 - 0x05 can be received on adv event type */
+#define BTM_BLE_SCAN_RSP_EVT    0x04
+#define BTM_BLE_SCAN_REQ_EVT    0x05
+#define BTM_BLE_UNKNOWN_EVT     0xff
+
+#define BTM_BLE_UNKNOWN_EVT     0xff
+
+typedef UINT8 tBTM_BLE_EVT;
+typedef UINT8 tBTM_BLE_CONN_MODE;
+
+typedef UINT32 tBTM_BLE_REF_VALUE;
+
+#define BTM_BLE_SCAN_MODE_PASS      0
+#define BTM_BLE_SCAN_MODE_ACTI      1
+#define BTM_BLE_SCAN_MODE_NONE      0xff
+typedef UINT8 tBLE_SCAN_MODE;
+
+#define BTM_BLE_BATCH_SCAN_MODE_DISABLE 0
+#define BTM_BLE_BATCH_SCAN_MODE_PASS  1
+#define BTM_BLE_BATCH_SCAN_MODE_ACTI  2
+#define BTM_BLE_BATCH_SCAN_MODE_PASS_ACTI 3
+
+typedef UINT8 tBTM_BLE_BATCH_SCAN_MODE;
+
+/* advertising channel map */
+#define BTM_BLE_ADV_CHNL_37    (0x01 << 0)
+#define BTM_BLE_ADV_CHNL_38    (0x01 << 1)
+#define BTM_BLE_ADV_CHNL_39    (0x01 << 2)
+typedef UINT8 tBTM_BLE_ADV_CHNL_MAP;
+
+/*d efault advertising channel map */
+#ifndef BTM_BLE_DEFAULT_ADV_CHNL_MAP
+#define BTM_BLE_DEFAULT_ADV_CHNL_MAP   (BTM_BLE_ADV_CHNL_37| BTM_BLE_ADV_CHNL_38| BTM_BLE_ADV_CHNL_39)
+#endif
+
+/* advertising filter policy */
+#define AP_SCAN_CONN_ALL           0x00        /* default */
+#define AP_SCAN_WL_CONN_ALL        0x01
+#define AP_SCAN_ALL_CONN_WL        0x02
+#define AP_SCAN_CONN_WL            0x03
+#define AP_SCAN_CONN_POLICY_MAX    0x04
+typedef UINT8   tBTM_BLE_AFP;
+
+/* default advertising filter policy */
+#ifndef BTM_BLE_DEFAULT_AFP
+#define BTM_BLE_DEFAULT_AFP   AP_SCAN_CONN_ALL
+#endif
+
+/* scanning filter policy */
+#define SP_ADV_ALL     0x00     /* 0: accept adv packet from all, directed adv pkt not directed */
+                                /* to local device is ignored */
+#define SP_ADV_WL      0x01     /* 1: accept adv packet from device in white list, directed adv */
+                                /* packet not directed to local device is ignored */
+#define SP_ADV_ALL_RPA_DIR_ADV 0x02  /* 2: accept adv packet from all, directed adv pkt */
+                                     /* not directed to me is ignored except direct adv with RPA */
+#define SP_ADV_WL_RPA_DIR_ADV  0x03  /* 3: accept adv packet from device in white list, directed */
+                                     /* adv pkt not directed to me is ignored except direct adv */
+                                     /* with RPA */
+typedef UINT8   tBTM_BLE_SFP;
+
+#ifndef BTM_BLE_DEFAULT_SFP
+#define BTM_BLE_DEFAULT_SFP   SP_ADV_ALL
+#endif
+
+/* adv parameter boundary values */
+#define BTM_BLE_ADV_INT_MIN            0x0020
+#define BTM_BLE_ADV_INT_MAX            0x4000
+
+/* Full scan boundary values */
+#define BTM_BLE_ADV_SCAN_FULL_MIN      0x00
+#define BTM_BLE_ADV_SCAN_FULL_MAX      0x64
+
+/* Partial scan boundary values */
+#define BTM_BLE_ADV_SCAN_TRUNC_MIN      BTM_BLE_ADV_SCAN_FULL_MIN
+#define BTM_BLE_ADV_SCAN_TRUNC_MAX      BTM_BLE_ADV_SCAN_FULL_MAX
+
+/* Threshold values */
+#define BTM_BLE_ADV_SCAN_THR_MIN        BTM_BLE_ADV_SCAN_FULL_MIN
+#define BTM_BLE_ADV_SCAN_THR_MAX        BTM_BLE_ADV_SCAN_FULL_MAX
+
+/* connection parameter boundary values */
+#define BTM_BLE_SCAN_INT_MIN            0x0004
+#define BTM_BLE_SCAN_INT_MAX            0x4000
+#define BTM_BLE_SCAN_WIN_MIN            0x0004
+#define BTM_BLE_SCAN_WIN_MAX            0x4000
+#define BTM_BLE_EXT_SCAN_INT_MAX        0x00FFFFFF
+#define BTM_BLE_EXT_SCAN_WIN_MAX        0xFFFF
+#define BTM_BLE_CONN_INT_MIN            0x0006
+#define BTM_BLE_CONN_INT_MAX            0x0C80
+#define BTM_BLE_CONN_LATENCY_MAX        500
+#define BTM_BLE_CONN_SUP_TOUT_MIN       0x000A
+#define BTM_BLE_CONN_SUP_TOUT_MAX       0x0C80
+#define BTM_BLE_CONN_PARAM_UNDEF        0xffff      /* use this value when a specific value not to be overwritten */
+#define BTM_BLE_SCAN_PARAM_UNDEF        0xffffffff
+
+/* default connection parameters if not configured, use GAP recommend value for auto/selective connection */
+/* default scan interval */
+#ifndef BTM_BLE_SCAN_FAST_INT
+#define BTM_BLE_SCAN_FAST_INT    96    /* 30 ~ 60 ms (use 60)  = 96 *0.625 */
+#endif
+/* default scan window for background connection, applicable for auto connection or selective conenction */
+#ifndef BTM_BLE_SCAN_FAST_WIN
+#define BTM_BLE_SCAN_FAST_WIN   48      /* 30 ms = 48 *0.625 */
+#endif
+
+/* default scan paramter used in reduced power cycle (background scanning) */
+#ifndef BTM_BLE_SCAN_SLOW_INT_1
+#define BTM_BLE_SCAN_SLOW_INT_1    2048    /* 1.28 s   = 2048 *0.625 */
+#endif
+#ifndef BTM_BLE_SCAN_SLOW_WIN_1
+#define BTM_BLE_SCAN_SLOW_WIN_1   48      /* 30 ms = 48 *0.625 */
+#endif
+
+/* default scan paramter used in reduced power cycle (background scanning) */
+#ifndef BTM_BLE_SCAN_SLOW_INT_2
+#define BTM_BLE_SCAN_SLOW_INT_2    4096    /* 2.56 s   = 4096 *0.625 */
+#endif
+#ifndef BTM_BLE_SCAN_SLOW_WIN_2
+#define BTM_BLE_SCAN_SLOW_WIN_2   36      /* 22.5 ms = 36 *0.625 */
+#endif
+
+/* default connection interval min */
+#ifndef BTM_BLE_CONN_INT_MIN_DEF
+#define BTM_BLE_CONN_INT_MIN_DEF     24      /* recommended min: 30ms  = 24 * 1.25 */
+#endif
+
+/* default connectino interval max */
+#ifndef BTM_BLE_CONN_INT_MAX_DEF
+#define BTM_BLE_CONN_INT_MAX_DEF     40      /* recommended max: 50 ms = 56 * 1.25 */
+#endif
+
+/* default slave latency */
+#ifndef BTM_BLE_CONN_SLAVE_LATENCY_DEF
+#define BTM_BLE_CONN_SLAVE_LATENCY_DEF  0      /* 0 */
+#endif
+
+/* default supervision timeout */
+#ifndef BTM_BLE_CONN_TIMEOUT_DEF
+#define BTM_BLE_CONN_TIMEOUT_DEF    2000
+#endif
+
+/* minimum supervision timeout */
+#ifndef BTM_BLE_CONN_TIMEOUT_MIN_DEF
+#define BTM_BLE_CONN_TIMEOUT_MIN_DEF    100
+#endif
+
+/* minimum acceptable connection interval */
+#ifndef BTM_BLE_CONN_INT_MIN_LIMIT
+#ifdef BLUETOOTH_RTK
+#define BTM_BLE_CONN_INT_MIN_LIMIT     0x0006
+#else
+#define BTM_BLE_CONN_INT_MIN_LIMIT     0x0009
+#endif
+#endif
+
+#define BTM_BLE_DIR_CONN_FALLBACK_UNDIR         1
+#define BTM_BLE_DIR_CONN_FALLBACK_NO_ADV        2
+
+#ifndef BTM_BLE_DIR_CONN_FALLBACK
+#define BTM_BLE_DIR_CONN_FALLBACK   BTM_BLE_DIR_CONN_FALLBACK_UNDIR
+#endif
+
+#define BTM_CMAC_TLEN_SIZE          8                   /* 64 bits */
+#define BTM_BLE_AUTH_SIGN_LEN       12                   /* BLE data signature length 8 Bytes + 4 bytes counter*/
+typedef UINT8 BLE_SIGNATURE[BTM_BLE_AUTH_SIGN_LEN];         /* Device address */
+
+#ifndef BTM_BLE_HOST_SUPPORT
+#define BTM_BLE_HOST_SUPPORT        0x01
+#endif
+
+#ifndef BTM_BLE_SIMULTANEOUS_HOST
+#define BTM_BLE_SIMULTANEOUS_HOST   0x01
+#endif
+
+/* Appearance Values Reported with BTM_BLE_AD_TYPE_APPEARANCE */
+#define BTM_BLE_APPEARANCE_UKNOWN                  0x0000
+#define BTM_BLE_APPEARANCE_GENERIC_PHONE           0x0040
+#define BTM_BLE_APPEARANCE_GENERIC_COMPUTER        0x0080
+#define BTM_BLE_APPEARANCE_GENERIC_WATCH           0x00C0
+#define BTM_BLE_APPEARANCE_SPORTS_WATCH            0x00C1
+#define BTM_BLE_APPEARANCE_GENERIC_CLOCK           0x0100
+#define BTM_BLE_APPEARANCE_GENERIC_DISPLAY         0x0140
+#define BTM_BLE_APPEARANCE_GENERIC_REMOTE          0x0180
+#define BTM_BLE_APPEARANCE_GENERIC_EYEGLASSES      0x01C0
+#define BTM_BLE_APPEARANCE_GENERIC_TAG             0x0200
+#define BTM_BLE_APPEARANCE_GENERIC_KEYRING         0x0240
+#define BTM_BLE_APPEARANCE_GENERIC_MEDIA_PLAYER    0x0280
+#define BTM_BLE_APPEARANCE_GENERIC_BARCODE_SCANNER 0x02C0
+#define BTM_BLE_APPEARANCE_GENERIC_THERMOMETER     0x0300
+#define BTM_BLE_APPEARANCE_THERMOMETER_EAR         0x0301
+#define BTM_BLE_APPEARANCE_GENERIC_HEART_RATE      0x0340
+#define BTM_BLE_APPEARANCE_HEART_RATE_BELT         0x0341
+#define BTM_BLE_APPEARANCE_GENERIC_BLOOD_PRESSURE  0x0380
+#define BTM_BLE_APPEARANCE_BLOOD_PRESSURE_ARM      0x0381
+#define BTM_BLE_APPEARANCE_BLOOD_PRESSURE_WRIST    0x0382
+#define BTM_BLE_APPEARANCE_GENERIC_HID             0x03C0
+#define BTM_BLE_APPEARANCE_HID_KEYBOARD            0x03C1
+#define BTM_BLE_APPEARANCE_HID_MOUSE               0x03C2
+#define BTM_BLE_APPEARANCE_HID_JOYSTICK            0x03C3
+#define BTM_BLE_APPEARANCE_HID_GAMEPAD             0x03C4
+#define BTM_BLE_APPEARANCE_HID_DIGITIZER_TABLET    0x03C5
+#define BTM_BLE_APPEARANCE_HID_CARD_READER         0x03C6
+#define BTM_BLE_APPEARANCE_HID_DIGITAL_PEN         0x03C7
+#define BTM_BLE_APPEARANCE_HID_BARCODE_SCANNER     0x03C8
+#define BTM_BLE_APPEARANCE_GENERIC_GLUCOSE         0x0400
+#define BTM_BLE_APPEARANCE_GENERIC_WALKING         0x0440
+#define BTM_BLE_APPEARANCE_WALKING_IN_SHOE         0x0441
+#define BTM_BLE_APPEARANCE_WALKING_ON_SHOE         0x0442
+#define BTM_BLE_APPEARANCE_WALKING_ON_HIP          0x0443
+#define BTM_BLE_APPEARANCE_GENERIC_CYCLING         0x0480
+#define BTM_BLE_APPEARANCE_CYCLING_COMPUTER        0x0481
+#define BTM_BLE_APPEARANCE_CYCLING_SPEED           0x0482
+#define BTM_BLE_APPEARANCE_CYCLING_CADENCE         0x0483
+#define BTM_BLE_APPEARANCE_CYCLING_POWER           0x0484
+#define BTM_BLE_APPEARANCE_CYCLING_SPEED_CADENCE   0x0485
+#define BTM_BLE_APPEARANCE_GENERIC_PULSE_OXIMETER  0x0C40
+#define BTM_BLE_APPEARANCE_PULSE_OXIMETER_FINGERTIP 0x0C41
+#define BTM_BLE_APPEARANCE_PULSE_OXIMETER_WRIST    0x0C42
+#define BTM_BLE_APPEARANCE_GENERIC_WEIGHT          0x0C80
+#define BTM_BLE_APPEARANCE_GENERIC_OUTDOOR_SPORTS  0x1440
+#define BTM_BLE_APPEARANCE_OUTDOOR_SPORTS_LOCATION 0x1441
+#define BTM_BLE_APPEARANCE_OUTDOOR_SPORTS_LOCATION_AND_NAV     0x1442
+#define BTM_BLE_APPEARANCE_OUTDOOR_SPORTS_LOCATION_POD         0x1443
+#define BTM_BLE_APPEARANCE_OUTDOOR_SPORTS_LOCATION_POD_AND_NAV 0x1444
+
+
+/* Structure returned with Rand/Encrypt complete callback */
+typedef struct
+{
+    UINT8   status;
+    UINT8   param_len;
+    UINT16  opcode;
+    UINT8   param_buf[BT_OCTET16_LEN];
+} tBTM_RAND_ENC;
+
+/* General callback function for notifying an application that a synchronous
+** BTM function is complete. The pointer contains the address of any returned data.
+*/
+typedef void (tBTM_RAND_ENC_CB) (tBTM_RAND_ENC *p1);
+
+#define BTM_BLE_FILTER_TARGET_SCANNER       0x01
+#define BTM_BLE_FILTER_TARGET_ADVR          0x00
+
+#define BTM_BLE_POLICY_BLACK_ALL            0x00    /* relevant to both */
+#define BTM_BLE_POLICY_ALLOW_SCAN           0x01    /* relevant to advertiser */
+#define BTM_BLE_POLICY_ALLOW_CONN           0x02    /* relevant to advertiser */
+#define BTM_BLE_POLICY_WHITE_ALL            0x03    /* relevant to both */
+
+/* ADV data flag bit definition used for BTM_BLE_AD_TYPE_FLAG */
+#define BTM_BLE_LIMIT_DISC_FLAG         (0x01 << 0)
+#define BTM_BLE_GEN_DISC_FLAG           (0x01 << 1)
+#define BTM_BLE_BREDR_NOT_SPT           (0x01 << 2)
+/* 4.1 spec adv flag for simultaneous BR/EDR+LE connection support */
+#define BTM_BLE_DMT_CONTROLLER_SPT      (0x01 << 3)
+#define BTM_BLE_DMT_HOST_SPT            (0x01 << 4)
+#define BTM_BLE_NON_LIMIT_DISC_FLAG     (0x00 )         /* lowest bit unset */
+#define BTM_BLE_ADV_FLAG_MASK           (BTM_BLE_LIMIT_DISC_FLAG | BTM_BLE_BREDR_NOT_SPT | BTM_BLE_GEN_DISC_FLAG)
+#define BTM_BLE_LIMIT_DISC_MASK         (BTM_BLE_LIMIT_DISC_FLAG )
+
+#define BTM_BLE_AD_BIT_DEV_NAME        (0x00000001 << 0)
+#define BTM_BLE_AD_BIT_FLAGS           (0x00000001 << 1)
+#define BTM_BLE_AD_BIT_MANU            (0x00000001 << 2)
+#define BTM_BLE_AD_BIT_TX_PWR          (0x00000001 << 3)
+#define BTM_BLE_AD_BIT_INT_RANGE       (0x00000001 << 5)
+#define BTM_BLE_AD_BIT_SERVICE         (0x00000001 << 6)
+#define BTM_BLE_AD_BIT_SERVICE_SOL     (0x00000001 << 7)
+#define BTM_BLE_AD_BIT_SERVICE_DATA    (0x00000001 << 8)
+#define BTM_BLE_AD_BIT_SIGN_DATA       (0x00000001 << 9)
+#define BTM_BLE_AD_BIT_SERVICE_128SOL  (0x00000001 << 10)
+#define BTM_BLE_AD_BIT_APPEARANCE      (0x00000001 << 11)
+#define BTM_BLE_AD_BIT_PUBLIC_ADDR      (0x00000001 << 12)
+#define BTM_BLE_AD_BIT_RANDOM_ADDR       (0x00000001 << 13)
+#define BTM_BLE_AD_BIT_SERVICE_32        (0x00000001 << 4)
+#define BTM_BLE_AD_BIT_SERVICE_32SOL     (0x00000001 << 14)
+#define BTM_BLE_AD_BIT_PROPRIETARY     (0x00000001 << 15)
+#define BTM_BLE_AD_BIT_SERVICE_128      (0x00000001 << 16)      /*128-bit Service UUIDs*/
+
+typedef  UINT32  tBTM_BLE_AD_MASK;
+
+#define BTM_BLE_AD_TYPE_FLAG            HCI_EIR_FLAGS_TYPE                  /* 0x01 */
+#define BTM_BLE_AD_TYPE_16SRV_PART      HCI_EIR_MORE_16BITS_UUID_TYPE       /* 0x02 */
+#define BTM_BLE_AD_TYPE_16SRV_CMPL      HCI_EIR_COMPLETE_16BITS_UUID_TYPE   /* 0x03 */
+#define BTM_BLE_AD_TYPE_32SRV_PART      HCI_EIR_MORE_32BITS_UUID_TYPE       /* 0x04 */
+#define BTM_BLE_AD_TYPE_32SRV_CMPL      HCI_EIR_COMPLETE_32BITS_UUID_TYPE   /* 0x05 */
+#define BTM_BLE_AD_TYPE_128SRV_PART     HCI_EIR_MORE_128BITS_UUID_TYPE       /* 0x06 */
+#define BTM_BLE_AD_TYPE_128SRV_CMPL     HCI_EIR_COMPLETE_128BITS_UUID_TYPE   /* 0x07 */
+#define BTM_BLE_AD_TYPE_NAME_SHORT      HCI_EIR_SHORTENED_LOCAL_NAME_TYPE       /* 0x08 */
+#define BTM_BLE_AD_TYPE_NAME_CMPL       HCI_EIR_COMPLETE_LOCAL_NAME_TYPE        /* 0x09 */
+#define BTM_BLE_AD_TYPE_TX_PWR          HCI_EIR_TX_POWER_LEVEL_TYPE             /* 0x0A */
+#define BTM_BLE_AD_TYPE_DEV_CLASS       0x0D
+#define BTM_BLE_AD_TYPE_SM_TK           0x10
+#define BTM_BLE_AD_TYPE_SM_OOB_FLAG     0x11
+#define BTM_BLE_AD_TYPE_INT_RANGE       0x12
+#define BTM_BLE_AD_TYPE_SOL_SRV_UUID    0x14
+#define BTM_BLE_AD_TYPE_128SOL_SRV_UUID 0x15
+#define BTM_BLE_AD_TYPE_SERVICE_DATA    0x16
+#define BTM_BLE_AD_TYPE_PUBLIC_TARGET   0x17
+#define BTM_BLE_AD_TYPE_RANDOM_TARGET   0x18
+#define BTM_BLE_AD_TYPE_APPEARANCE      0x19
+#define BTM_BLE_AD_TYPE_ADV_INT         0x1a
+#define BTM_BLE_AD_TYPE_32SOL_SRV_UUID  0x1b
+#define BTM_BLE_AD_TYPE_32SERVICE_DATA  0x1c
+#define BTM_BLE_AD_TYPE_128SERVICE_DATA 0x1d
+
+#define BTM_BLE_AD_TYPE_MANU            HCI_EIR_MANUFACTURER_SPECIFIC_TYPE      /* 0xff */
+typedef UINT8   tBTM_BLE_AD_TYPE;
+
+/*  Security settings used with L2CAP LE COC */
+#define BTM_SEC_LE_LINK_ENCRYPTED           0x01
+#define BTM_SEC_LE_LINK_PAIRED_WITHOUT_MITM 0x02
+#define BTM_SEC_LE_LINK_PAIRED_WITH_MITM    0x04
+
+/*  Min/max Preferred  number of payload octets that the local Controller
+    should include in a single Link Layer Data Channel PDU. */
+#define BTM_BLE_DATA_SIZE_MAX     0x00fb
+#define BTM_BLE_DATA_SIZE_MIN     0x001b
+
+/*  Preferred maximum number of microseconds that the local Controller
+    should use to transmit a single Link Layer Data Channel PDU. */
+#define BTM_BLE_DATA_TX_TIME_MIN     0x0148
+#define BTM_BLE_DATA_TX_TIME_MAX     0x0848
+
+/* adv tx power level */
+#define BTM_BLE_ADV_TX_POWER_MIN        0           /* minimum tx power */
+#define BTM_BLE_ADV_TX_POWER_LOW        1           /* low tx power     */
+#define BTM_BLE_ADV_TX_POWER_MID        2           /* middle tx power  */
+#define BTM_BLE_ADV_TX_POWER_UPPER      3           /* upper tx power   */
+#define BTM_BLE_ADV_TX_POWER_MAX        4           /* maximum tx power */
+typedef UINT8 tBTM_BLE_ADV_TX_POWER;
+
+/* adv tx power in dBm */
+typedef struct
+{
+    UINT8 adv_inst_max;         /* max adv instance supported in controller */
+    UINT8 rpa_offloading;
+    UINT16 tot_scan_results_strg;
+    UINT8 max_irk_list_sz;
+    UINT8 filter_support;
+    UINT8 max_filter;
+    UINT8 energy_support;
+    BOOLEAN values_read;
+    UINT16 version_supported;
+    UINT16 total_trackable_advertisers;
+    UINT8 extended_scan_support;
+    UINT8 debug_logging_supported;
+}tBTM_BLE_VSC_CB;
+
+/* slave preferred connection interval range */
+typedef struct
+{
+    UINT16  low;
+    UINT16  hi;
+
+}tBTM_BLE_INT_RANGE;
+
+/* Service tag supported in the device */
+#define MAX_16BIT_SERVICES 16
+typedef struct
+{
+    UINT8       num_service;
+    BOOLEAN     list_cmpl;
+    UINT16      uuid[MAX_16BIT_SERVICES];
+}tBTM_BLE_SERVICE;
+
+/* 32 bits Service supported in the device */
+#define MAX_32BIT_SERVICES 4
+typedef struct
+{
+    UINT8       num_service;
+    BOOLEAN     list_cmpl;
+    UINT32      uuid[MAX_32BIT_SERVICES];
+}tBTM_BLE_32SERVICE;
+
+/* 128 bits Service supported in the device */
+typedef struct
+{
+    UINT8       num_service;
+    BOOLEAN     list_cmpl;
+    UINT8       uuid128[MAX_UUID_SIZE];
+}tBTM_BLE_128SERVICE;
+
+#define MAX_SIZE_MANUFACTURER_DATA 32
+typedef struct
+{
+    UINT8 len;
+    UINT8 val[MAX_SIZE_MANUFACTURER_DATA];
+}tBTM_BLE_MANU;
+
+#define MAX_SIZE_SERVICE_DATA 32
+typedef struct
+{
+    tBT_UUID    service_uuid;
+    UINT8       len;
+    UINT8       val[MAX_SIZE_SERVICE_DATA];
+}tBTM_BLE_SERVICE_DATA;
+
+#define MAX_SIZE_PROPRIETARY_ELEMENT 32
+typedef struct
+{
+    UINT8       adv_type;
+    UINT8       len;
+    UINT8       val[MAX_SIZE_PROPRIETARY_ELEMENT];     /* number of len byte */
+}tBTM_BLE_PROP_ELEM;
+
+#define MAX_PROPRIETARY_ELEMENTS 4
+typedef struct
+{
+    UINT8                   num_elem;
+    tBTM_BLE_PROP_ELEM      elem[MAX_PROPRIETARY_ELEMENTS];
+}tBTM_BLE_PROPRIETARY;
+
+typedef struct
+{
+    tBTM_BLE_INT_RANGE      int_range;      /* slave prefered conn interval range */
+    tBTM_BLE_MANU           manu;           /* manufactuer data */
+    tBTM_BLE_SERVICE        services;       /* services */
+    tBTM_BLE_128SERVICE     services_128b;  /* 128 bits service */
+    tBTM_BLE_32SERVICE      service_32b;     /* 32 bits Service UUID */
+    tBTM_BLE_SERVICE        sol_services;    /* 16 bits services Solicitation UUIDs */
+    tBTM_BLE_32SERVICE      sol_service_32b;    /* List of 32 bit Service Solicitation UUIDs */
+    tBTM_BLE_128SERVICE     sol_service_128b;    /* List of 128 bit Service Solicitation UUIDs */
+    tBTM_BLE_PROPRIETARY    proprietary;
+    tBTM_BLE_SERVICE_DATA   service_data;    /* service data */
+    UINT16                  appearance;
+    UINT8                   flag;
+    UINT8                   tx_power;
+}tBTM_BLE_ADV_DATA;
+
+#ifndef BTM_BLE_MULTI_ADV_MAX
+#define BTM_BLE_MULTI_ADV_MAX   16 /* controller returned adv_inst_max should be less
+                                      than this number */
+#endif
+
+#define BTM_BLE_MULTI_ADV_INVALID   0
+
+#define BTM_BLE_MULTI_ADV_ENB_EVT           1
+#define BTM_BLE_MULTI_ADV_DISABLE_EVT       2
+#define BTM_BLE_MULTI_ADV_PARAM_EVT         3
+#define BTM_BLE_MULTI_ADV_DATA_EVT          4
+typedef UINT8 tBTM_BLE_MULTI_ADV_EVT;
+
+#define BTM_BLE_MULTI_ADV_DEFAULT_STD 0
+
+typedef struct
+{
+    UINT16          adv_int_min;
+    UINT16          adv_int_max;
+    UINT8           adv_type;
+    tBTM_BLE_ADV_CHNL_MAP channel_map;
+    tBTM_BLE_AFP    adv_filter_policy;
+    tBTM_BLE_ADV_TX_POWER tx_power;
+}tBTM_BLE_ADV_PARAMS;
+
+typedef struct
+{
+    UINT8   *p_sub_code; /* dynamic array to store sub code */
+    UINT8   *p_inst_id;  /* dynamic array to store instance id */
+    UINT8   pending_idx;
+    UINT8   next_idx;
+}tBTM_BLE_MULTI_ADV_OPQ;
+
+typedef void (tBTM_BLE_MULTI_ADV_CBACK)(tBTM_BLE_MULTI_ADV_EVT evt, UINT8 inst_id,
+                void *p_ref, tBTM_STATUS status);
+
+typedef struct
+{
+    UINT8                       inst_id;
+    BOOLEAN                     in_use;
+    UINT8                       adv_evt;
+    BD_ADDR                     rpa;
+    alarm_t                     *adv_raddr_timer;
+    tBTM_BLE_MULTI_ADV_CBACK    *p_cback;
+    void                        *p_ref;
+    UINT8                       index;
+}tBTM_BLE_MULTI_ADV_INST;
+
+typedef struct
+{
+    UINT8 inst_index_queue[BTM_BLE_MULTI_ADV_MAX];
+    int front;
+    int rear;
+}tBTM_BLE_MULTI_ADV_INST_IDX_Q;
+
+typedef struct
+{
+    tBTM_BLE_MULTI_ADV_INST *p_adv_inst; /* dynamic array to store adv instance */
+    tBTM_BLE_MULTI_ADV_OPQ  op_q;
+}tBTM_BLE_MULTI_ADV_CB;
+
+typedef UINT8 tGATT_IF;
+
+typedef void (tBTM_BLE_SCAN_THRESHOLD_CBACK)(tBTM_BLE_REF_VALUE ref_value);
+typedef void (tBTM_BLE_SCAN_REP_CBACK)(tBTM_BLE_REF_VALUE ref_value, UINT8 report_format,
+                                       UINT8 num_records, UINT16 total_len,
+                                       UINT8* p_rep_data, UINT8 status);
+typedef void (tBTM_BLE_SCAN_SETUP_CBACK)(UINT8 evt, tBTM_BLE_REF_VALUE ref_value, UINT8 status);
+
+#ifndef BTM_BLE_BATCH_SCAN_MAX
+#define BTM_BLE_BATCH_SCAN_MAX   5
+#endif
+
+#ifndef BTM_BLE_BATCH_REP_MAIN_Q_SIZE
+#define BTM_BLE_BATCH_REP_MAIN_Q_SIZE  2
+#endif
+
+typedef enum
+{
+    BTM_BLE_SCAN_INVALID_STATE=0,
+    BTM_BLE_SCAN_ENABLE_CALLED=1,
+    BTM_BLE_SCAN_ENABLED_STATE=2,
+    BTM_BLE_SCAN_DISABLE_CALLED=3,
+    BTM_BLE_SCAN_DISABLED_STATE=4
+}tBTM_BLE_BATCH_SCAN_STATE;
+
+enum
+{
+    BTM_BLE_DISCARD_OLD_ITEMS,
+    BTM_BLE_DISCARD_LOWER_RSSI_ITEMS
+};
+typedef UINT8 tBTM_BLE_DISCARD_RULE;
+
+typedef struct
+{
+    UINT8   sub_code[BTM_BLE_BATCH_SCAN_MAX];
+    tBTM_BLE_BATCH_SCAN_STATE cur_state[BTM_BLE_BATCH_SCAN_MAX];
+    tBTM_BLE_REF_VALUE        ref_value[BTM_BLE_BATCH_SCAN_MAX];
+    UINT8   pending_idx;
+    UINT8   next_idx;
+}tBTM_BLE_BATCH_SCAN_OPQ;
+
+typedef struct
+{
+    UINT8   rep_mode[BTM_BLE_BATCH_REP_MAIN_Q_SIZE];
+    tBTM_BLE_REF_VALUE  ref_value[BTM_BLE_BATCH_REP_MAIN_Q_SIZE];
+    UINT8   num_records[BTM_BLE_BATCH_REP_MAIN_Q_SIZE];
+    UINT16  data_len[BTM_BLE_BATCH_REP_MAIN_Q_SIZE];
+    UINT8   *p_data[BTM_BLE_BATCH_REP_MAIN_Q_SIZE];
+    UINT8   pending_idx;
+    UINT8   next_idx;
+}tBTM_BLE_BATCH_SCAN_REP_Q;
+
+typedef struct
+{
+    tBTM_BLE_BATCH_SCAN_STATE      cur_state;
+    tBTM_BLE_BATCH_SCAN_MODE scan_mode;
+    UINT32                  scan_interval;
+    UINT32                  scan_window;
+    tBLE_ADDR_TYPE          addr_type;
+    tBTM_BLE_DISCARD_RULE   discard_rule;
+    tBTM_BLE_BATCH_SCAN_OPQ  op_q;
+    tBTM_BLE_BATCH_SCAN_REP_Q main_rep_q;
+    tBTM_BLE_SCAN_SETUP_CBACK     *p_setup_cback;
+    tBTM_BLE_SCAN_THRESHOLD_CBACK *p_thres_cback;
+    tBTM_BLE_SCAN_REP_CBACK       *p_scan_rep_cback;
+    tBTM_BLE_REF_VALUE             ref_value;
+}tBTM_BLE_BATCH_SCAN_CB;
+
+/* filter selection bit index  */
+#define BTM_BLE_PF_ADDR_FILTER          0
+#define BTM_BLE_PF_SRVC_DATA            1
+#define BTM_BLE_PF_SRVC_UUID            2
+#define BTM_BLE_PF_SRVC_SOL_UUID        3
+#define BTM_BLE_PF_LOCAL_NAME           4
+#define BTM_BLE_PF_MANU_DATA            5
+#define BTM_BLE_PF_SRVC_DATA_PATTERN    6
+#define BTM_BLE_PF_TYPE_ALL             7  /* when passed in payload filter type all, only clear action is applicable */
+#define BTM_BLE_PF_TYPE_MAX             8
+
+/* max number of filter spot for different filter type */
+#ifndef BTM_BLE_MAX_UUID_FILTER
+#define BTM_BLE_MAX_UUID_FILTER     8
+#endif
+#ifndef BTM_BLE_MAX_ADDR_FILTER
+#define BTM_BLE_MAX_ADDR_FILTER     8
+#endif
+#ifndef BTM_BLE_PF_STR_COND_MAX
+#define BTM_BLE_PF_STR_COND_MAX     4   /* apply to manu data , or local name */
+#endif
+#ifndef BTM_BLE_PF_STR_LEN_MAX
+#define BTM_BLE_PF_STR_LEN_MAX      29  /* match for first 29 bytes */
+#endif
+
+typedef UINT8   tBTM_BLE_PF_COND_TYPE;
+
+#define BTM_BLE_PF_LOGIC_OR              0
+#define BTM_BLE_PF_LOGIC_AND             1
+typedef UINT8 tBTM_BLE_PF_LOGIC_TYPE;
+
+#define BTM_BLE_PF_ENABLE       1
+#define BTM_BLE_PF_CONFIG       2
+typedef UINT8 tBTM_BLE_PF_ACTION;
+
+typedef UINT8 tBTM_BLE_PF_FILT_INDEX;
+
+typedef UINT8 tBTM_BLE_PF_AVBL_SPACE;
+
+#define BTM_BLE_PF_BRDCAST_ADDR_FILT  1
+#define BTM_BLE_PF_SERV_DATA_CHG_FILT 2
+#define BTM_BLE_PF_SERV_UUID          4
+#define BTM_BLE_PF_SERV_SOLC_UUID     8
+#define BTM_BLE_PF_LOC_NAME_CHECK    16
+#define BTM_BLE_PF_MANUF_NAME_CHECK  32
+#define BTM_BLE_PF_SERV_DATA_CHECK   64
+typedef UINT16 tBTM_BLE_PF_FEAT_SEL;
+
+#define BTM_BLE_PF_LIST_LOGIC_OR   1
+#define BTM_BLE_PF_LIST_LOGIC_AND  2
+typedef UINT16 tBTM_BLE_PF_LIST_LOGIC_TYPE;
+
+#define BTM_BLE_PF_FILT_LOGIC_OR   0
+#define BTM_BLE_PF_FILT_LOGIC_AND  1
+typedef UINT16 tBTM_BLE_PF_FILT_LOGIC_TYPE;
+
+typedef UINT8  tBTM_BLE_PF_RSSI_THRESHOLD;
+typedef UINT8  tBTM_BLE_PF_DELIVERY_MODE;
+typedef UINT16 tBTM_BLE_PF_TIMEOUT;
+typedef UINT8  tBTM_BLE_PF_TIMEOUT_CNT;
+typedef UINT16 tBTM_BLE_PF_ADV_TRACK_ENTRIES;
+
+typedef struct
+{
+    tBTM_BLE_PF_FEAT_SEL feat_seln;
+    tBTM_BLE_PF_LIST_LOGIC_TYPE logic_type;
+    tBTM_BLE_PF_FILT_LOGIC_TYPE filt_logic_type;
+    tBTM_BLE_PF_RSSI_THRESHOLD  rssi_high_thres;
+    tBTM_BLE_PF_RSSI_THRESHOLD  rssi_low_thres;
+    tBTM_BLE_PF_DELIVERY_MODE dely_mode;
+    tBTM_BLE_PF_TIMEOUT found_timeout;
+    tBTM_BLE_PF_TIMEOUT lost_timeout;
+    tBTM_BLE_PF_TIMEOUT_CNT found_timeout_cnt;
+    tBTM_BLE_PF_ADV_TRACK_ENTRIES num_of_tracking_entries;
+}tBTM_BLE_PF_FILT_PARAMS;
+
+enum
+{
+    BTM_BLE_SCAN_COND_ADD,
+    BTM_BLE_SCAN_COND_DELETE,
+    BTM_BLE_SCAN_COND_CLEAR = 2
+};
+typedef UINT8 tBTM_BLE_SCAN_COND_OP;
+
+enum
+{
+    BTM_BLE_FILT_ENABLE_DISABLE = 1,
+    BTM_BLE_FILT_CFG            = 2,
+    BTM_BLE_FILT_ADV_PARAM      = 3
+};
+
+typedef UINT8 tBTM_BLE_FILT_CB_EVT;
+
+/* BLE adv payload filtering config complete callback */
+typedef void (tBTM_BLE_PF_CFG_CBACK)(tBTM_BLE_PF_ACTION action, tBTM_BLE_SCAN_COND_OP cfg_op,
+                                     tBTM_BLE_PF_AVBL_SPACE avbl_space, tBTM_STATUS status,
+                                     tBTM_BLE_REF_VALUE ref_value);
+
+typedef void (tBTM_BLE_PF_CMPL_CBACK) (tBTM_BLE_PF_CFG_CBACK);
+
+/* BLE adv payload filtering status setup complete callback */
+typedef void (tBTM_BLE_PF_STATUS_CBACK) (UINT8 action, tBTM_STATUS status,
+                                        tBTM_BLE_REF_VALUE ref_value);
+
+/* BLE adv payload filtering param setup complete callback */
+typedef void (tBTM_BLE_PF_PARAM_CBACK) (tBTM_BLE_PF_ACTION action_type,
+                                        tBTM_BLE_PF_AVBL_SPACE avbl_space,
+                                        tBTM_BLE_REF_VALUE ref_value, tBTM_STATUS status);
+
+typedef union
+{
+      UINT16              uuid16_mask;
+      UINT32              uuid32_mask;
+      UINT8               uuid128_mask[LEN_UUID_128];
+}tBTM_BLE_PF_COND_MASK;
+
+typedef struct
+{
+    tBLE_BD_ADDR            *p_target_addr;     /* target address, if NULL, generic UUID filter */
+    tBT_UUID                uuid;           /* UUID condition */
+    tBTM_BLE_PF_LOGIC_TYPE  cond_logic;    /* AND/OR */
+    tBTM_BLE_PF_COND_MASK   *p_uuid_mask;           /* UUID mask */
+}tBTM_BLE_PF_UUID_COND;
+
+typedef struct
+{
+    UINT8                   data_len;       /* <= 20 bytes */
+    UINT8                   *p_data;
+}tBTM_BLE_PF_LOCAL_NAME_COND;
+
+typedef struct
+{
+    UINT16                  company_id;     /* company ID */
+    UINT8                   data_len;       /* <= 20 bytes */
+    UINT8                   *p_pattern;
+    UINT16                  company_id_mask; /* UUID value mask */
+    UINT8                   *p_pattern_mask; /* Manufacturer data matching mask,
+                                                same length as data pattern,
+                                                set to all 0xff, match exact data */
+}tBTM_BLE_PF_MANU_COND;
+
+typedef struct
+{
+    UINT16                  uuid;     /* service ID */
+    UINT8                   data_len;       /* <= 20 bytes */
+    UINT8                   *p_pattern;
+    UINT8                   *p_pattern_mask; /* Service data matching mask, same length as data pattern,
+                                                set to all 0xff, match exact data */
+}tBTM_BLE_PF_SRVC_PATTERN_COND;
+
+
+typedef union
+{
+    tBLE_BD_ADDR                            target_addr;
+    tBTM_BLE_PF_LOCAL_NAME_COND             local_name; /* lcoal name filtering */
+    tBTM_BLE_PF_MANU_COND                   manu_data;  /* manufactuer data filtering */
+    tBTM_BLE_PF_UUID_COND                   srvc_uuid;  /* service UUID filtering */
+    tBTM_BLE_PF_UUID_COND                   solicitate_uuid;   /* solicitated service UUID filtering */
+    tBTM_BLE_PF_SRVC_PATTERN_COND           srvc_data;      /* service data pattern */
+}tBTM_BLE_PF_COND_PARAM;
+
+typedef struct
+{
+    UINT8   action_ocf[BTM_BLE_PF_TYPE_MAX];
+    tBTM_BLE_REF_VALUE  ref_value[BTM_BLE_PF_TYPE_MAX];
+    tBTM_BLE_PF_PARAM_CBACK  *p_filt_param_cback[BTM_BLE_PF_TYPE_MAX];
+    tBTM_BLE_PF_CFG_CBACK *p_scan_cfg_cback[BTM_BLE_PF_TYPE_MAX];
+    UINT8   cb_evt[BTM_BLE_PF_TYPE_MAX];
+    UINT8   pending_idx;
+    UINT8   next_idx;
+}tBTM_BLE_ADV_FILTER_ADV_OPQ;
+
+#define BTM_BLE_MAX_FILTER_COUNTER  (BTM_BLE_MAX_ADDR_FILTER + 1) /* per device filter + one generic filter indexed by 0 */
+
+#ifndef BTM_CS_IRK_LIST_MAX
+#define BTM_CS_IRK_LIST_MAX 0x20
+#endif
+
+typedef struct
+{
+    BOOLEAN    in_use;
+    BD_ADDR    bd_addr;
+    UINT8      pf_counter[BTM_BLE_PF_TYPE_MAX]; /* number of filter indexed by tBTM_BLE_PF_COND_TYPE */
+}tBTM_BLE_PF_COUNT;
+
+typedef struct
+{
+    BOOLEAN             enable;
+    UINT8               op_type;
+    tBTM_BLE_PF_COUNT   *p_addr_filter_count; /* per BDA filter array */
+    tBLE_BD_ADDR        cur_filter_target;
+    tBTM_BLE_PF_STATUS_CBACK *p_filt_stat_cback;
+    tBTM_BLE_ADV_FILTER_ADV_OPQ  op_q;
+}tBTM_BLE_ADV_FILTER_CB;
+
+/* Sub codes */
+#define BTM_BLE_META_PF_ENABLE          0x00
+#define BTM_BLE_META_PF_FEAT_SEL        0x01
+#define BTM_BLE_META_PF_ADDR            0x02
+#define BTM_BLE_META_PF_UUID            0x03
+#define BTM_BLE_META_PF_SOL_UUID        0x04
+#define BTM_BLE_META_PF_LOCAL_NAME      0x05
+#define BTM_BLE_META_PF_MANU_DATA       0x06
+#define BTM_BLE_META_PF_SRVC_DATA       0x07
+#define BTM_BLE_META_PF_ALL             0x08
+
+typedef UINT8 BTM_BLE_ADV_STATE;
+typedef UINT8 BTM_BLE_ADV_INFO_PRESENT;
+typedef UINT8 BTM_BLE_RSSI_VALUE;
+typedef UINT16 BTM_BLE_ADV_INFO_TIMESTAMP;
+
+/* These are the fields returned in each device adv packet.  It
+** is returned in the results callback if registered.
+*/
+typedef struct
+{
+    UINT8               conn_mode;
+    tBTM_BLE_AD_MASK    ad_mask;        /* mask of the valid adv data field */
+    UINT8               flag;
+    UINT8               tx_power_level;
+    UINT8               remote_name_len;
+    UINT8               *p_remote_name;
+    tBTM_BLE_SERVICE    service;
+} tBTM_BLE_INQ_DATA;
+
+enum
+{
+    BTM_BLE_CONN_NONE,
+    BTM_BLE_CONN_AUTO,
+    BTM_BLE_CONN_SELECTIVE
+};
+typedef UINT8   tBTM_BLE_CONN_TYPE;
+
+#define ADV_INFO_PRESENT        0x00
+#define NO_ADV_INFO_PRESENT     0x01
+
+typedef btgatt_track_adv_info_t tBTM_BLE_TRACK_ADV_DATA;
+
+typedef void (tBTM_BLE_TRACK_ADV_CBACK)(tBTM_BLE_TRACK_ADV_DATA *p_track_adv_data);
+
+typedef UINT8 tBTM_BLE_TRACK_ADV_EVT;
+
+typedef struct
+{
+    tBTM_BLE_REF_VALUE             ref_value;
+    tBTM_BLE_TRACK_ADV_CBACK *p_track_cback;
+}tBTM_BLE_ADV_TRACK_CB;
+
+enum
+{
+    BTM_BLE_TRACK_ADV_ADD,
+    BTM_BLE_TRACK_ADV_REMOVE
+};
+
+typedef UINT8 tBTM_BLE_TRACK_ADV_ACTION;
+
+#define BTM_BLE_MULTI_ADV_INVALID   0
+
+#define BTM_BLE_BATCH_SCAN_ENABLE_EVT     1
+#define BTM_BLE_BATCH_SCAN_CFG_STRG_EVT   2
+#define BTM_BLE_BATCH_SCAN_READ_REPTS_EVT 3
+#define BTM_BLE_BATCH_SCAN_THR_EVT        4
+#define BTM_BLE_BATCH_SCAN_PARAM_EVT      5
+#define BTM_BLE_BATCH_SCAN_DISABLE_EVT    6
+
+typedef UINT8 tBTM_BLE_BATCH_SCAN_EVT;
+
+typedef UINT32 tBTM_BLE_TX_TIME_MS;
+typedef UINT32 tBTM_BLE_RX_TIME_MS;
+typedef UINT32 tBTM_BLE_IDLE_TIME_MS;
+typedef UINT32 tBTM_BLE_ENERGY_USED;
+
+typedef void (tBTM_BLE_ENERGY_INFO_CBACK)(tBTM_BLE_TX_TIME_MS tx_time, tBTM_BLE_RX_TIME_MS rx_time,
+                                          tBTM_BLE_IDLE_TIME_MS idle_time,
+                                          tBTM_BLE_ENERGY_USED  energy_used,
+                                          tBTM_STATUS status);
+
+typedef struct
+{
+    tBTM_BLE_ENERGY_INFO_CBACK *p_ener_cback;
+}tBTM_BLE_ENERGY_INFO_CB;
+
+typedef BOOLEAN (tBTM_BLE_SEL_CBACK)(BD_ADDR random_bda,     UINT8 *p_remote_name);
+typedef void (tBTM_BLE_CTRL_FEATURES_CBACK)(tBTM_STATUS status);
+
+/* callback function for SMP signing algorithm, signed data in little endian order with tlen bits long */
+typedef void (tBTM_BLE_SIGN_CBACK)(void *p_ref_data, UINT8 *p_signing_data);
+typedef void (tBTM_BLE_VERIFY_CBACK)(void *p_ref_data, BOOLEAN match);
+/* random address set complete callback */
+typedef void (tBTM_BLE_RANDOM_SET_CBACK) (BD_ADDR random_bda);
+
+typedef void (tBTM_BLE_SCAN_REQ_CBACK)(BD_ADDR remote_bda, tBLE_ADDR_TYPE addr_type, UINT8 adv_evt);
+typedef void (*tBLE_SCAN_PARAM_SETUP_CBACK)(tGATT_IF client_if, tBTM_STATUS status);
+
+tBTM_BLE_SCAN_SETUP_CBACK bta_ble_scan_setup_cb;
+
+/*****************************************************************************
+**  EXTERNAL FUNCTION DECLARATIONS
+*****************************************************************************/
+#ifdef __cplusplus
+extern "C" {
+#endif
+/*******************************************************************************
+**
+** Function         BTM_SecAddBleDevice
+**
+** Description      Add/modify device.  This function will be normally called
+**                  during host startup to restore all required information
+**                  for a LE device stored in the NVRAM.
+**
+** Parameters:      bd_addr          - BD address of the peer
+**                  bd_name          - Name of the peer device.  NULL if unknown.
+**                  dev_type         - Remote device's device type.
+**                  addr_type        - LE device address type.
+**
+** Returns          TRUE if added OK, else FALSE
+**
+*******************************************************************************/
+extern BOOLEAN BTM_SecAddBleDevice (BD_ADDR bd_addr, BD_NAME bd_name,
+                                           tBT_DEVICE_TYPE dev_type, tBLE_ADDR_TYPE addr_type);
+/*******************************************************************************
+**
+** Function         BTM_SecAddBleDeviceExtraInfo
+**
+** Description      Add/modify device.  This function will be normally called
+**                  during host startup to restore all required information
+**                  for a LE device stored in the NVRAM.
+**
+** Parameters:      bd_addr          - BD address of the peer
+**                  bd_name          - Name of the peer device.  NULL if unknown.
+**                  dev_class         - Remote device's device class.
+**
+** Returns          TRUE if added OK, else FALSE
+**
+*******************************************************************************/
+#ifdef BLUETOOTH_RTK
+extern BOOLEAN BTM_SecAddBleDeviceExtraInfo (BD_ADDR bd_addr, BD_NAME bd_name, DEV_CLASS dev_class);
+#endif
+
+/*******************************************************************************
+**
+** Function         BTM_SecAddBleKey
+**
+** Description      Add/modify LE device information.  This function will be
+**                  normally called during host startup to restore all required
+**                  information stored in the NVRAM.
+**
+** Parameters:      bd_addr          - BD address of the peer
+**                  p_le_key         - LE key values.
+**                  key_type         - LE SMP key type.
+*
+** Returns          TRUE if added OK, else FALSE
+**
+*******************************************************************************/
+extern BOOLEAN BTM_SecAddBleKey (BD_ADDR bd_addr, tBTM_LE_KEY_VALUE *p_le_key,
+                                 tBTM_LE_KEY_TYPE key_type);
+
+/*******************************************************************************
+**
+** Function         BTM_BleSetAdvParams
+**
+** Description      This function is called to set advertising parameters.
+**
+** Parameters:       None.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_BleSetAdvParams(UINT16 adv_int_min, UINT16 adv_int_max,
+                                       tBLE_BD_ADDR *p_dir_bda, tBTM_BLE_ADV_CHNL_MAP chnl_map);
+
+/*******************************************************************************
+**
+** Function         BTM_BleWriteAdvData
+**
+** Description      This function is called to write advertising data.
+**
+** Parameters:       None.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_BleWriteAdvData(tBTM_BLE_AD_MASK  data_mask,
+                                       tBTM_BLE_ADV_DATA *p_data);
+
+/*******************************************************************************
+**
+** Function         BTM_BleSetAdvParams
+**
+** Description      This function is called to set advertising parameters.
+**
+** Parameters       adv_int_min: minimum advertising interval
+**                  adv_int_max: maximum advertising interval
+**                  p_dir_bda: connectable direct initiator's LE device address
+**                  chnl_map: advertising channel map.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTM_BleReadAdvParams (UINT16 *adv_int_min, UINT16 *adv_int_max,
+                                  tBLE_BD_ADDR *p_dir_bda, tBTM_BLE_ADV_CHNL_MAP *p_chnl_map);
+
+/*******************************************************************************
+**
+** Function         BTM_BleObtainVendorCapabilities
+**
+** Description      This function is called to obatin vendor capabilties
+**
+** Parameters       p_cmn_vsc_cb - Returns the vednor capabilities
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTM_BleObtainVendorCapabilities(tBTM_BLE_VSC_CB *p_cmn_vsc_cb);
+
+/*******************************************************************************
+**
+** Function         BTM_BleSetScanParams
+**
+** Description      This function is called to set Scan parameters.
+**
+** Parameters       client_if - Client IF value
+**                  scan_interval - Scan interval
+**                  scan_window - Scan window
+**                  scan_type - Scan type
+**                  scan_setup_status_cback - Scan setup status callback
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTM_BleSetScanParams(tGATT_IF client_if, UINT32 scan_interval,
+                                 UINT32 scan_window, tBLE_SCAN_MODE scan_type,
+                                 tBLE_SCAN_PARAM_SETUP_CBACK scan_setup_status_cback);
+
+/*******************************************************************************
+**
+** Function         BTM_BleGetVendorCapabilities
+**
+** Description      This function reads local LE features
+**
+** Parameters       p_cmn_vsc_cb : Locala LE capability structure
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTM_BleGetVendorCapabilities(tBTM_BLE_VSC_CB *p_cmn_vsc_cb);
+/*******************************************************************************
+**
+** Function         BTM_BleSetStorageConfig
+**
+** Description      This function is called to setup storage configuration and setup callbacks.
+**
+** Parameters       UINT8 batch_scan_full_max -Batch scan full maximum
+                    UINT8 batch_scan_trunc_max - Batch scan truncated value maximum
+                    UINT8 batch_scan_notify_threshold - Threshold value
+                    tBTM_BLE_SCAN_SETUP_CBACK *p_setup_cback - Setup callback
+                    tBTM_BLE_SCAN_THRESHOLD_CBACK *p_thres_cback -Threshold callback
+                    void *p_ref - Reference value
+**
+** Returns          tBTM_STATUS
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_BleSetStorageConfig(UINT8 batch_scan_full_max,
+                                        UINT8 batch_scan_trunc_max,
+                                        UINT8 batch_scan_notify_threshold,
+                                        tBTM_BLE_SCAN_SETUP_CBACK *p_setup_cback,
+                                        tBTM_BLE_SCAN_THRESHOLD_CBACK *p_thres_cback,
+                                        tBTM_BLE_SCAN_REP_CBACK* p_cback,
+                                        tBTM_BLE_REF_VALUE ref_value);
+
+/*******************************************************************************
+**
+** Function         BTM_BleEnableBatchScan
+**
+** Description      This function is called to enable batch scan
+**
+** Parameters       tBTM_BLE_BATCH_SCAN_MODE scan_mode - Batch scan mode
+                    UINT32 scan_interval -Scan interval
+                    UINT32 scan_window - Scan window value
+                    tBLE_ADDR_TYPE addr_type - Address type
+                    tBTM_BLE_DISCARD_RULE discard_rule - Data discard rules
+**
+** Returns          tBTM_STATUS
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_BleEnableBatchScan(tBTM_BLE_BATCH_SCAN_MODE scan_mode,
+                                        UINT32 scan_interval, UINT32 scan_window,
+                                        tBTM_BLE_DISCARD_RULE discard_rule,
+                                        tBLE_ADDR_TYPE addr_type,
+                                        tBTM_BLE_REF_VALUE ref_value);
+
+/*******************************************************************************
+**
+** Function         BTM_BleDisableBatchScan
+**
+** Description      This function is called to disable batch scanning
+**
+** Parameters       void
+**
+** Returns          void
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_BleDisableBatchScan(tBTM_BLE_REF_VALUE ref_value);
+
+/*******************************************************************************
+**
+** Function         BTM_BleReadScanReports
+**
+** Description      This function is called to read batch scan reports
+**
+** Parameters       tBLE_SCAN_MODE scan_mode - Scan mode report to be read out
+                    tBTM_BLE_SCAN_REP_CBACK* p_cback - Reports callback
+**
+** Returns          tBTM_STATUS
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_BleReadScanReports(tBLE_SCAN_MODE scan_mode,
+                                                  tBTM_BLE_REF_VALUE ref_value);
+
+/*******************************************************************************
+**
+** Function         BTM_BleTrackAdvertiser
+**
+** Description      This function is called to read batch scan reports
+**
+** Parameters       p_track_cback - Tracking callback
+**                  ref_value - Reference value
+**
+** Returns          tBTM_STATUS
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_BleTrackAdvertiser(tBTM_BLE_TRACK_ADV_CBACK *p_track_cback,
+                                                  tBTM_BLE_REF_VALUE ref_value);
+
+/*******************************************************************************
+**
+** Function         BTM_BleWriteScanRsp
+**
+** Description      This function is called to write LE scan response.
+**
+** Parameters:      p_scan_rsp: scan response.
+**
+** Returns          status
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_BleWriteScanRsp(tBTM_BLE_AD_MASK data_mask,
+                                       tBTM_BLE_ADV_DATA *p_data);
+
+/*******************************************************************************
+**
+** Function         BTM_BleObserve
+**
+** Description      This procedure keep the device listening for advertising
+**                  events from a broadcast device.
+**
+** Parameters       start: start or stop observe.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_BleObserve(BOOLEAN start, UINT8 duration,
+                                  tBTM_INQ_RESULTS_CB *p_results_cb, tBTM_CMPL_CB *p_cmpl_cb);
+
+
+/*******************************************************************************
+**
+** Function         BTM_GetDeviceIDRoot
+**
+** Description      This function is called to read the local device identity
+**                  root.
+**
+** Returns          void
+**                  the local device ER is copied into er
+**
+*******************************************************************************/
+extern void BTM_GetDeviceIDRoot (BT_OCTET16 ir);
+
+/*******************************************************************************
+**
+** Function         BTM_GetDeviceEncRoot
+**
+** Description      This function is called to read the local device encryption
+**                  root.
+**
+** Returns          void
+**                  the local device ER is copied into er
+**
+*******************************************************************************/
+extern void BTM_GetDeviceEncRoot (BT_OCTET16 er);
+
+/*******************************************************************************
+**
+** Function         BTM_GetDeviceDHK
+**
+** Description      This function is called to read the local device DHK.
+**
+** Returns          void
+**                  the local device DHK is copied into dhk
+**
+*******************************************************************************/
+extern void BTM_GetDeviceDHK (BT_OCTET16 dhk);
+
+/*******************************************************************************
+**
+** Function         BTM_SecurityGrant
+**
+** Description      This function is called to grant security process.
+**
+** Parameters       bd_addr - peer device bd address.
+**                  res     - result of the operation BTM_SUCCESS if success.
+**                            Otherwise, BTM_REPEATED_ATTEMPTS is too many attempts.
+**
+** Returns          None
+**
+*******************************************************************************/
+extern void BTM_SecurityGrant(BD_ADDR bd_addr, UINT8 res);
+
+/*******************************************************************************
+**
+** Function         BTM_BlePasskeyReply
+**
+** Description      This function is called after Security Manager submitted
+**                  passkey request to the application.
+**
+** Parameters:      bd_addr      - Address of the device for which passkey was requested
+**                  res          - result of the operation SMP_SUCCESS if success
+**                  passkey - numeric value in the range of
+**                  BTM_MIN_PASSKEY_VAL(0) - BTM_MAX_PASSKEY_VAL(999999(0xF423F)).
+**
+*******************************************************************************/
+extern void BTM_BlePasskeyReply (BD_ADDR bd_addr, UINT8 res, UINT32 passkey);
+
+/*******************************************************************************
+**
+** Function         BTM_BleConfirmReply
+**
+** Description      This function is called after Security Manager submitted
+**                  numeric comparison request to the application.
+**
+** Parameters:      bd_addr      - Address of the device with which numeric
+**                                 comparison was requested
+**                  res          - comparison result BTM_SUCCESS if success
+**
+*******************************************************************************/
+extern void BTM_BleConfirmReply (BD_ADDR bd_addr, UINT8 res);
+
+/*******************************************************************************
+**
+** Function         BTM_LeOobDataReply
+**
+** Description      This function is called to provide the OOB data for
+**                  SMP in response to BTM_LE_OOB_REQ_EVT
+**
+** Parameters:      bd_addr     - Address of the peer device
+**                  res         - result of the operation SMP_SUCCESS if success
+**                  p_data      - simple pairing Randomizer  C.
+**
+*******************************************************************************/
+extern void BTM_BleOobDataReply(BD_ADDR bd_addr, UINT8 res, UINT8 len, UINT8 *p_data);
+
+
+/*******************************************************************************
+**
+** Function         BTM_BleDataSignature
+**
+** Description      This function is called to sign the data using AES128 CMAC
+**                  algorith.
+**
+** Parameter        bd_addr: target device the data to be signed for.
+**                  p_text: singing data
+**                  len: length of the signing data
+**                  signature: output parameter where data signature is going to
+**                             be stored.
+**
+** Returns          TRUE if signing sucessul, otherwise FALSE.
+**
+*******************************************************************************/
+extern BOOLEAN BTM_BleDataSignature (BD_ADDR bd_addr, UINT8 *p_text, UINT16 len,
+                                     BLE_SIGNATURE signature);
+
+/*******************************************************************************
+**
+** Function         BTM_BleVerifySignature
+**
+** Description      This function is called to verify the data signature
+**
+** Parameter        bd_addr: target device the data to be signed for.
+**                  p_orig:  original data before signature.
+**                  len: length of the signing data
+**                  counter: counter used when doing data signing
+**                  p_comp: signature to be compared against.
+
+** Returns          TRUE if signature verified correctly; otherwise FALSE.
+**
+*******************************************************************************/
+extern BOOLEAN BTM_BleVerifySignature (BD_ADDR bd_addr, UINT8 *p_orig,
+                                       UINT16 len, UINT32 counter,
+                                       UINT8 *p_comp);
+
+/*******************************************************************************
+**
+** Function         BTM_ReadConnectionAddr
+**
+** Description      This function is called to set the local device random address
+**                  .
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTM_ReadConnectionAddr (BD_ADDR remote_bda, BD_ADDR local_conn_addr,
+                                            tBLE_ADDR_TYPE *p_addr_type);
+
+
+
+/*******************************************************************************
+**
+** Function         BTM_ReadRemoteConnectionAddr
+**
+** Description      This function is read the remote device address currently used
+**                  .
+**
+** Returns          void
+**
+*******************************************************************************/
+extern BOOLEAN BTM_ReadRemoteConnectionAddr(BD_ADDR pseudo_addr,
+                                                    BD_ADDR conn_addr,
+                                                    tBLE_ADDR_TYPE *p_addr_type);
+
+/*******************************************************************************
+**
+** Function         BTM_BleLoadLocalKeys
+**
+** Description      Local local identity key, encryption root or sign counter.
+**
+** Parameters:      key_type: type of key, can be BTM_BLE_KEY_TYPE_ID, BTM_BLE_KEY_TYPE_ER
+**                            or BTM_BLE_KEY_TYPE_COUNTER.
+**                  p_key: pointer to the key.
+*
+** Returns          non2.
+**
+*******************************************************************************/
+extern void BTM_BleLoadLocalKeys(UINT8 key_type, tBTM_BLE_LOCAL_KEYS *p_key);
+
+
+/*******************************************************************************
+**
+** Function         BTM_BleSetBgConnType
+**
+** Description      This function is called to set BLE background connection
+**                  procedure type. It can be auto connection, or selective connection.
+**
+** Parameters       conn_type: it can be auto connection, or selective connection.
+**                  p_select_cback: callback function when selective connection procedure
+**                              is being used.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern BOOLEAN BTM_BleSetBgConnType(tBTM_BLE_CONN_TYPE   conn_type,
+                                    tBTM_BLE_SEL_CBACK   *p_select_cback);
+
+/*******************************************************************************
+**
+** Function         BTM_BleUpdateBgConnDev
+**
+** Description      This function is called to add or remove a device into/from
+**                  background connection procedure. The background connection
+*                   procedure is decided by the background connection type, it can be
+*                   auto connection, or selective connection.
+**
+** Parameters       add_remove: TRUE to add; FALSE to remove.
+**                  remote_bda: device address to add/remove.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern BOOLEAN BTM_BleUpdateBgConnDev(BOOLEAN add_remove, BD_ADDR   remote_bda);
+
+/*******************************************************************************
+**
+** Function         BTM_BleClearBgConnDev
+**
+** Description      This function is called to clear the whitelist,
+**                  end any pending whitelist connections,
+*                   and reset the local bg device list.
+**
+** Parameters       void
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTM_BleClearBgConnDev(void);
+
+/********************************************************
+**
+** Function         BTM_BleSetPrefConnParams
+**
+** Description      Set a peripheral's preferred connection parameters. When
+**                  any of the value does not want to be updated while others
+**                  do, use BTM_BLE_CONN_PARAM_UNDEF for the ones want to
+**                  leave untouched.
+**
+** Parameters:      bd_addr          - BD address of the peripheral
+**                  min_conn_int     - minimum preferred connection interval
+**                  max_conn_int     - maximum preferred connection interval
+**                  slave_latency    - preferred slave latency
+**                  supervision_tout - preferred supervision timeout
+**
+** Returns          void
+**
+*******************************************************************************/
+extern  void BTM_BleSetPrefConnParams (BD_ADDR bd_addr,
+                                               UINT16 min_conn_int,  UINT16 max_conn_int,
+                                               UINT16 slave_latency, UINT16 supervision_tout);
+
+/******************************************************************************
+**
+** Function         BTM_BleSetConnScanParams
+**
+** Description      Set scan parameters used in BLE connection request
+**
+** Parameters:      scan_interval    - scan interval
+**                  scan_window      - scan window
+**
+** Returns          void
+**
+*******************************************************************************/
+extern  void BTM_BleSetConnScanParams (UINT32 scan_interval, UINT32 scan_window);
+
+/******************************************************************************
+**
+** Function         BTM_BleReadControllerFeatures
+**
+** Description      Reads BLE specific controller features
+**
+** Parameters:      tBTM_BLE_CTRL_FEATURES_CBACK : Callback to notify when features are read
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTM_BleReadControllerFeatures(tBTM_BLE_CTRL_FEATURES_CBACK  *p_vsc_cback);
+
+/*******************************************************************************
+**
+** Function         BTM_CheckAdvData
+**
+** Description      This function is called to get ADV data for a specific type.
+**
+** Parameters       p_adv - pointer of ADV data
+**                  type   - finding ADV data type
+**                  p_length - return the length of ADV data not including type
+**
+** Returns          pointer of ADV data
+**
+*******************************************************************************/
+extern  UINT8 *BTM_CheckAdvData( UINT8 *p_adv, UINT8 type, UINT8 *p_length);
+
+/*******************************************************************************
+**
+** Function         BTM__BLEReadDiscoverability
+**
+** Description      This function is called to read the current LE discoverability
+**                  mode of the device.
+**
+** Returns          BTM_BLE_NON_DISCOVERABLE ,BTM_BLE_LIMITED_DISCOVERABLE or
+**                     BTM_BLE_GENRAL_DISCOVERABLE
+**
+*******************************************************************************/
+UINT16 BTM_BleReadDiscoverability();
+
+/*******************************************************************************
+**
+** Function         BTM__BLEReadConnectability
+**
+** Description      This function is called to read the current LE connectibility
+**                  mode of the device.
+**
+** Returns          BTM_BLE_NON_CONNECTABLE or BTM_BLE_CONNECTABLE
+**
+*******************************************************************************/
+extern UINT16 BTM_BleReadConnectability ();
+
+/*******************************************************************************
+**
+** Function         BTM_ReadDevInfo
+**
+** Description      This function is called to read the device/address type
+**                  of BD address.
+**
+** Parameter        remote_bda: remote device address
+**                  p_dev_type: output parameter to read the device type.
+**                  p_addr_type: output parameter to read the address type.
+**
+*******************************************************************************/
+extern void BTM_ReadDevInfo (BD_ADDR remote_bda, tBT_DEVICE_TYPE *p_dev_type,
+                                     tBLE_ADDR_TYPE *p_addr_type);
+
+
+/*******************************************************************************
+**
+** Function         BTM_ReadConnectedTransportAddress
+**
+** Description      This function is called to read the paired device/address type of other device paired
+**                  corresponding to the BD_address
+**
+** Parameter        remote_bda: remote device address, carry out the transport address
+**                  transport: active transport
+**
+** Return           TRUE if an active link is identified; FALSE otherwise
+**
+*******************************************************************************/
+extern BOOLEAN BTM_ReadConnectedTransportAddress(BD_ADDR remote_bda,
+                                                 tBT_TRANSPORT transport);
+
+/*******************************************************************************
+**
+** Function         BTM_BleBroadcast
+**
+** Description      This function is to start or stop broadcasting.
+**
+** Parameters       start: start or stop broadcasting.
+**
+** Returns          status.
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_BleBroadcast(BOOLEAN start);
+
+/*******************************************************************************
+**
+** Function         BTM_BleConfigPrivacy
+**
+** Description      This function is called to enable or disable the privacy in
+**                  the local device.
+**
+** Parameters       enable: TRUE to enable it; FALSE to disable it.
+**
+** Returns          BOOLEAN privacy mode set success; otherwise failed.
+**
+*******************************************************************************/
+extern BOOLEAN BTM_BleConfigPrivacy(BOOLEAN enable);
+
+/*******************************************************************************
+**
+** Function         BTM_BleLocalPrivacyEnabled
+**
+** Description        Checks if local device supports private address
+**
+** Returns          Return TRUE if local privacy is enabled else FALSE
+**
+*******************************************************************************/
+extern BOOLEAN BTM_BleLocalPrivacyEnabled(void);
+
+/*******************************************************************************
+**
+** Function         BTM_BleEnableMixedPrivacyMode
+**
+** Description      This function is called to enabled Mixed mode if privacy 1.2
+**                  is applicable in controller.
+**
+** Parameters       mixed_on:  mixed mode to be used or not.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTM_BleEnableMixedPrivacyMode(BOOLEAN mixed_on);
+
+/*******************************************************************************
+**
+** Function          BTM_BleMaxMultiAdvInstanceCount
+**
+** Description        Returns max number of multi adv instances  supported by controller
+**
+** Returns          Max multi adv instance count
+**
+*******************************************************************************/
+extern UINT8  BTM_BleMaxMultiAdvInstanceCount();
+
+/*******************************************************************************
+**
+** Function         BTM_BleSetConnectableMode
+**
+** Description      This function is called to set BLE connectable mode for a
+**                  peripheral device.
+**
+** Parameters       connectable_mode:  directed connectable mode, or non-directed.It can
+**                              be BTM_BLE_CONNECT_EVT, BTM_BLE_CONNECT_DIR_EVT or
+**                              BTM_BLE_CONNECT_LO_DUTY_DIR_EVT
+**
+** Returns          BTM_ILLEGAL_VALUE if controller does not support BLE.
+**                  BTM_SUCCESS is status set successfully; otherwise failure.
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_BleSetConnectableMode(tBTM_BLE_CONN_MODE connectable_mode);
+
+/*******************************************************************************
+**
+** Function         BTM_BleTurnOnPrivacyOnRemote
+**
+** Description      This function is called to enable or disable the privacy on the
+**                  remote device.
+**
+** Parameters       bd_addr: remote device address.
+**                  privacy_on: TRUE to enable it; FALSE to disable it.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void BTM_BleTurnOnPrivacyOnRemote(BD_ADDR bd_addr,
+                                                 BOOLEAN privacy_on);
+
+/*******************************************************************************
+**
+** Function         BTM_BleUpdateAdvWhitelist
+**
+** Description      Add or remove device from advertising white list
+**
+** Returns          void
+**
+*******************************************************************************/
+extern BOOLEAN BTM_BleUpdateAdvWhitelist(BOOLEAN add_remove, BD_ADDR emote_bda);
+
+/*******************************************************************************
+**
+** Function         BTM_BleUpdateAdvFilterPolicy
+**
+** Description      This function update the filter policy of advertiser.
+**
+** Parameter        adv_policy: advertising filter policy
+**
+** Return           void
+*******************************************************************************/
+extern void BTM_BleUpdateAdvFilterPolicy(tBTM_BLE_AFP adv_policy);
+
+/*******************************************************************************
+**
+** Function         BTM_BleReceiverTest
+**
+** Description      This function is called to start the LE Receiver test
+**
+** Parameter       rx_freq - Frequency Range
+**               p_cmd_cmpl_cback - Command Complete callback
+**
+*******************************************************************************/
+void BTM_BleReceiverTest(UINT8 rx_freq, tBTM_CMPL_CB *p_cmd_cmpl_cback);
+
+
+/*******************************************************************************
+**
+** Function         BTM_BleTransmitterTest
+**
+** Description      This function is called to start the LE Transmitter test
+**
+** Parameter       tx_freq - Frequency Range
+**                       test_data_len - Length in bytes of payload data in each packet
+**                       packet_payload - Pattern to use in the payload
+**                       p_cmd_cmpl_cback - Command Complete callback
+**
+*******************************************************************************/
+void BTM_BleTransmitterTest(UINT8 tx_freq, UINT8 test_data_len,
+                                 UINT8 packet_payload, tBTM_CMPL_CB *p_cmd_cmpl_cback);
+
+/*******************************************************************************
+**
+** Function         BTM_BleTestEnd
+**
+** Description      This function is called to stop the in-progress TX or RX test
+**
+** Parameter       p_cmd_cmpl_cback - Command complete callback
+**
+*******************************************************************************/
+void BTM_BleTestEnd(tBTM_CMPL_CB *p_cmd_cmpl_cback);
+
+/*******************************************************************************
+**
+** Function         BTM_UseLeLink
+**
+** Description      This function is to select the underneath physical link to use.
+**
+** Returns          TRUE to use LE, FALSE use BR/EDR.
+**
+*******************************************************************************/
+extern BOOLEAN BTM_UseLeLink (BD_ADDR bd_addr);
+
+/*******************************************************************************
+**
+** Function         BTM_BleStackEnable
+**
+** Description      Enable/Disable BLE functionality on stack regarless controller
+**                  capability.
+**
+** Parameters:      enable: TRUE to enable, FALSE to disable.
+**
+** Returns          TRUE if added OK, else FALSE
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_BleStackEnable (BOOLEAN enable);
+
+/*******************************************************************************
+**
+** Function         BTM_GetLeSecurityState
+**
+** Description      This function is called to get security mode 1 flags and
+**                  encryption key size for LE peer.
+**
+** Returns          BOOLEAN TRUE if LE device is found, FALSE otherwise.
+**
+*******************************************************************************/
+extern BOOLEAN BTM_GetLeSecurityState (BD_ADDR bd_addr,
+                                               UINT8 *p_le_dev_sec_flags,
+                                               UINT8 *p_le_key_size);
+
+/*******************************************************************************
+**
+** Function         BTM_BleSecurityProcedureIsRunning
+**
+** Description      This function indicates if LE security procedure is
+**                  currently running with the peer.
+**
+** Returns          BOOLEAN TRUE if security procedure is running, FALSE otherwise.
+**
+*******************************************************************************/
+extern BOOLEAN BTM_BleSecurityProcedureIsRunning (BD_ADDR bd_addr);
+
+/*******************************************************************************
+**
+** Function         BTM_BleGetSupportedKeySize
+**
+** Description      This function gets the maximum encryption key size in bytes
+**                  the local device can suport.
+**                  record.
+**
+** Returns          the key size or 0 if the size can't be retrieved.
+**
+*******************************************************************************/
+extern UINT8 BTM_BleGetSupportedKeySize (BD_ADDR bd_addr);
+
+/*******************************************************************************/
+/*                          Multi ADV API                                      */
+/*******************************************************************************
+**
+** Function         BTM_BleEnableAdvInstance
+**
+** Description      This function enable a Multi-ADV instance with the specified
+**                  adv parameters
+**
+** Parameters       p_params: pointer to the adv parameter structure, set as default
+**                            adv parameter when the instance is enabled.
+**                  p_cback: callback function for the adv instance.
+**                  p_ref:  reference data attach to the adv instance to be enabled.
+**
+** Returns          status
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_BleEnableAdvInstance (tBTM_BLE_ADV_PARAMS *p_params,
+                                      tBTM_BLE_MULTI_ADV_CBACK *p_cback,
+                                      void *p_ref);
+
+/*******************************************************************************
+**
+** Function         BTM_BleUpdateAdvInstParam
+**
+** Description      This function update a Multi-ADV instance with the specififed
+**                  adv parameters.
+**
+** Parameters       inst_id: adv instance ID
+**                  p_params: pointer to the adv parameter structure.
+**
+** Returns          status
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_BleUpdateAdvInstParam (UINT8 inst_id, tBTM_BLE_ADV_PARAMS *p_params);
+
+/*******************************************************************************
+**
+** Function         BTM_BleCfgAdvInstData
+**
+** Description      This function configure a Multi-ADV instance with the specified
+**                  adv data or scan response data.
+**
+** Parameters       inst_id: adv instance ID
+**                  is_scan_rsp: is this scacn response, if no set as adv data.
+**                  data_mask: adv data mask.
+**                  p_data: pointer to the adv data structure.
+**
+** Returns          status
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_BleCfgAdvInstData (UINT8 inst_id, BOOLEAN is_scan_rsp,
+                                    tBTM_BLE_AD_MASK data_mask,
+                                    tBTM_BLE_ADV_DATA *p_data);
+
+/*******************************************************************************
+**
+** Function         BTM_BleDisableAdvInstance
+**
+** Description      This function disable a Multi-ADV instance.
+**
+** Parameters       inst_id: adv instance ID
+**
+** Returns          status
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_BleDisableAdvInstance (UINT8 inst_id);
+
+/*******************************************************************************
+**
+** Function         BTM_BleAdvFilterParamSetup
+**
+** Description      This function is called to setup the adv data payload filter
+**                  condition.
+**
+** Parameters       p_target: enabble the filter condition on a target device; if NULL
+**                            enable the generic scan condition.
+**                  enable: enable or disable the filter condition
+**
+** Returns          void
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_BleAdvFilterParamSetup(int action,
+                                tBTM_BLE_PF_FILT_INDEX filt_index,
+                                tBTM_BLE_PF_FILT_PARAMS *p_filt_params,
+                                tBLE_BD_ADDR *p_target, tBTM_BLE_PF_PARAM_CBACK *p_cmpl_cback,
+                                tBTM_BLE_REF_VALUE ref_value);
+
+/*******************************************************************************
+**
+** Function         BTM_BleCfgFilterCondition
+**
+** Description      This function is called to configure the adv data payload filter
+**                  condition.
+**
+** Parameters       action: to read/write/clear
+**                  cond_type: filter condition type.
+**                  p_cond: filter condition paramter
+**
+** Returns          tBTM_STATUS
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_BleCfgFilterCondition(tBTM_BLE_SCAN_COND_OP action,
+                                      tBTM_BLE_PF_COND_TYPE cond_type,
+                                      tBTM_BLE_PF_FILT_INDEX filt_index,
+                                      tBTM_BLE_PF_COND_PARAM *p_cond,
+                                      tBTM_BLE_PF_CFG_CBACK *p_cmpl_cback,
+                                      tBTM_BLE_REF_VALUE ref_value);
+
+/*******************************************************************************
+**
+** Function         BTM_BleEnableDisableFilterFeature
+**
+** Description      This function is called to enable or disable the APCF feature
+**
+** Parameters       enable - TRUE - enables the APCF, FALSE - disables the APCF
+**                       ref_value - Ref value
+**
+** Returns          tBTM_STATUS
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_BleEnableDisableFilterFeature(UINT8 enable,
+                                               tBTM_BLE_PF_STATUS_CBACK *p_stat_cback,
+                                               tBTM_BLE_REF_VALUE ref_value);
+
+/*******************************************************************************
+**
+** Function         BTM_BleGetEnergyInfo
+**
+** Description      This function obtains the energy info
+**
+** Parameters       p_ener_cback - Callback pointer
+**
+** Returns          status
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_BleGetEnergyInfo(tBTM_BLE_ENERGY_INFO_CBACK *p_ener_cback);
+
+/*******************************************************************************
+**
+** Function         BTM_SetBleDataLength
+**
+** Description      This function is called to set maximum BLE transmission packet size
+**
+** Returns          BTM_SUCCESS if success; otherwise failed.
+**
+*******************************************************************************/
+extern tBTM_STATUS BTM_SetBleDataLength(BD_ADDR bd_addr, UINT16 tx_pdu_length);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/rtkbt/code/bt/stack/include/btu.h b/rtkbt/code/bt/stack/include/btu.h
new file mode 100755
index 0000000..d0415f9
--- /dev/null
+++ b/rtkbt/code/bt/stack/include/btu.h
@@ -0,0 +1,90 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  this file contains the main Bluetooth Upper Layer definitions. The Broadcom
+ *  implementations of L2CAP RFCOMM, SDP and the BTIf run as one GKI task. The
+ *  btu_task switches between them.
+ *
+ ******************************************************************************/
+
+#ifndef BTU_H
+#define BTU_H
+
+#include "bt_target.h"
+#include "bt_common.h"
+#include "osi/include/alarm.h"
+
+// HACK(zachoverflow): temporary dark magic
+#define BTU_POST_TO_TASK_NO_GOOD_HORRIBLE_HACK 0x1700 // didn't look used in bt_types...here goes nothing
+typedef struct {
+  void (*callback)(BT_HDR *);
+} post_to_task_hack_t;
+
+typedef struct {
+  void (*callback)(BT_HDR *);
+  BT_HDR *response;
+  void *context;
+} command_complete_hack_t;
+
+typedef struct {
+  void (*callback)(BT_HDR *);
+  uint8_t status;
+  BT_HDR *command;
+  void *context;
+} command_status_hack_t;
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Global BTU data */
+extern uint8_t btu_trace_level;
+
+extern const BD_ADDR        BT_BD_ANY;
+
+/* Functions provided by btu_task.c
+************************************
+*/
+
+#if (defined(HCILP_INCLUDED) && HCILP_INCLUDED == TRUE)
+extern void btu_check_bt_sleep (void);
+#endif
+
+/* Functions provided by btu_hcif.c
+************************************
+*/
+extern void  btu_hcif_process_event (UINT8 controller_id, BT_HDR *p_buf);
+extern void  btu_hcif_send_cmd (UINT8 controller_id, BT_HDR *p_msg);
+
+/* Functions provided by btu_core.c
+************************************
+*/
+extern void  btu_init_core(void);
+extern void  btu_free_core(void);
+
+void BTU_StartUp(void);
+void BTU_ShutDown(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/rtkbt/code/bt/stack/include/dyn_mem.h b/rtkbt/code/bt/stack/include/dyn_mem.h
new file mode 100755
index 0000000..de599ed
--- /dev/null
+++ b/rtkbt/code/bt/stack/include/dyn_mem.h
@@ -0,0 +1,150 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2002-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+#ifndef DYN_MEM_H
+#define DYN_MEM_H
+
+/****************************************************************************
+** Define memory usage for each CORE component (if not defined in bdroid_buildcfg.h)
+**  The default for each component is to use static memory allocations.
+*/
+#ifndef BTM_DYNAMIC_MEMORY
+#define BTM_DYNAMIC_MEMORY  FALSE
+#endif
+
+#ifndef SDP_DYNAMIC_MEMORY
+#define SDP_DYNAMIC_MEMORY  FALSE
+#endif
+
+#ifndef L2C_DYNAMIC_MEMORY
+#define L2C_DYNAMIC_MEMORY  FALSE
+#endif
+
+#ifndef RFC_DYNAMIC_MEMORY
+#define RFC_DYNAMIC_MEMORY  FALSE
+#endif
+
+#ifndef TCS_DYNAMIC_MEMORY
+#define TCS_DYNAMIC_MEMORY  FALSE
+#endif
+
+#ifndef BNEP_DYNAMIC_MEMORY
+#define BNEP_DYNAMIC_MEMORY FALSE
+#endif
+
+#ifndef AVDT_DYNAMIC_MEMORY
+#define AVDT_DYNAMIC_MEMORY FALSE
+#endif
+
+#ifndef AVCT_DYNAMIC_MEMORY
+#define AVCT_DYNAMIC_MEMORY FALSE
+#endif
+
+#ifndef MCA_DYNAMIC_MEMORY
+#define MCA_DYNAMIC_MEMORY FALSE
+#endif
+
+#ifndef GATT_DYNAMIC_MEMORY
+#define GATT_DYNAMIC_MEMORY  FALSE
+#endif
+
+#ifndef SMP_DYNAMIC_MEMORY
+#define SMP_DYNAMIC_MEMORY  FALSE
+#endif
+
+/****************************************************************************
+** Define memory usage for each PROFILE component (if not defined in bdroid_buildcfg.h)
+**  The default for each component is to use static memory allocations.
+*/
+#ifndef A2D_DYNAMIC_MEMORY
+#define A2D_DYNAMIC_MEMORY  FALSE
+#endif
+
+#ifndef VDP_DYNAMIC_MEMORY
+#define VDP_DYNAMIC_MEMORY  FALSE
+#endif
+
+#ifndef AVRC_DYNAMIC_MEMORY
+#define AVRC_DYNAMIC_MEMORY FALSE
+#endif
+
+#ifndef BIP_DYNAMIC_MEMORY
+#define BIP_DYNAMIC_MEMORY  FALSE
+#endif
+
+#ifndef BPP_DYNAMIC_MEMORY
+#define BPP_DYNAMIC_MEMORY  FALSE
+#endif
+
+#ifndef CTP_DYNAMIC_MEMORY
+#define CTP_DYNAMIC_MEMORY  FALSE
+#endif
+
+#ifndef FTP_DYNAMIC_MEMORY
+#define FTP_DYNAMIC_MEMORY  FALSE
+#endif
+
+#ifndef HCRP_DYNAMIC_MEMORY
+#define HCRP_DYNAMIC_MEMORY FALSE
+#endif
+
+#ifndef HFP_DYNAMIC_MEMORY
+#define HFP_DYNAMIC_MEMORY  FALSE
+#endif
+
+#ifndef HID_DYNAMIC_MEMORY
+#define HID_DYNAMIC_MEMORY  FALSE
+#endif
+
+#ifndef HSP2_DYNAMIC_MEMORY
+#define HSP2_DYNAMIC_MEMORY FALSE
+#endif
+
+#ifndef ICP_DYNAMIC_MEMORY
+#define ICP_DYNAMIC_MEMORY  FALSE
+#endif
+
+#ifndef OPP_DYNAMIC_MEMORY
+#define OPP_DYNAMIC_MEMORY  FALSE
+#endif
+
+#ifndef PAN_DYNAMIC_MEMORY
+#define PAN_DYNAMIC_MEMORY  FALSE
+#endif
+
+#ifndef SPP_DYNAMIC_MEMORY
+#define SPP_DYNAMIC_MEMORY  FALSE
+#endif
+
+#ifndef SLIP_DYNAMIC_MEMORY
+#define SLIP_DYNAMIC_MEMORY  FALSE
+#endif
+
+#ifndef LLCP_DYNAMIC_MEMORY
+#define LLCP_DYNAMIC_MEMORY  FALSE
+#endif
+
+/****************************************************************************
+** Define memory usage for BTA (if not defined in bdroid_buildcfg.h)
+**  The default for each component is to use static memory allocations.
+*/
+#ifndef BTA_DYNAMIC_MEMORY
+#define BTA_DYNAMIC_MEMORY FALSE
+#endif
+
+#endif  /* #ifdef DYN_MEM_H */
+
diff --git a/rtkbt/code/bt/stack/include/gap_api.h b/rtkbt/code/bt/stack/include/gap_api.h
new file mode 100755
index 0000000..e1be352
--- /dev/null
+++ b/rtkbt/code/bt/stack/include/gap_api.h
@@ -0,0 +1,382 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2013 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#ifndef GAP_API_H
+#define GAP_API_H
+
+#include "profiles_api.h"
+#include "btm_api.h"
+#include "l2c_api.h"
+
+/*****************************************************************************
+**  Constants
+*****************************************************************************/
+/*** GAP Error and Status Codes ***/
+#define GAP_UNSUPPORTED     (GAP_ERR_GRP + 0x01)    /* Unsupported call */
+#define GAP_EOINQDB         (GAP_ERR_GRP + 0x02)    /* End of inquiry database marker */
+#define GAP_ERR_BUSY        (GAP_ERR_GRP + 0x03)    /* The requested function was busy */
+#define GAP_ERR_NO_CTRL_BLK (GAP_ERR_GRP + 0x04)    /* No control blocks available */
+#define GAP_ERR_STARTING_CMD (GAP_ERR_GRP + 0x05)   /* Error occurred while initiating the command */
+#define GAP_NO_BDADDR_REC   (GAP_ERR_GRP + 0x06)    /* No Inquiry DB record for BD_ADDR */
+#define GAP_ERR_ILL_MODE    (GAP_ERR_GRP + 0x07)    /* An illegal mode parameter was detected */
+#define GAP_ERR_ILL_INQ_TIME (GAP_ERR_GRP + 0x08)   /* An illegal time parameter was detected */
+#define GAP_ERR_ILL_PARM     (GAP_ERR_GRP + 0x09)   /* An illegal parameter was detected */
+#define GAP_ERR_REM_NAME    (GAP_ERR_GRP + 0x0a)    /* Error starting the remote device name request */
+#define GAP_CMD_INITIATED   (GAP_ERR_GRP + 0x0b)    /* The GAP command was started (result pending) */
+#define GAP_DEVICE_NOT_UP   (GAP_ERR_GRP + 0x0c)    /* The device was not up; the request was not executed */
+#define GAP_BAD_BD_ADDR     (GAP_ERR_GRP + 0x0d)    /* The bd addr passed in was not found or invalid */
+
+#define GAP_ERR_BAD_HANDLE  (GAP_ERR_GRP + 0x0e)    /* Bad GAP handle                       */
+#define GAP_ERR_BUF_OFFSET  (GAP_ERR_GRP + 0x0f)    /* Buffer offset invalid                */
+#define GAP_ERR_BAD_STATE   (GAP_ERR_GRP + 0x10)    /* Connection is in invalid state       */
+#define GAP_NO_DATA_AVAIL   (GAP_ERR_GRP + 0x11)    /* No data available                    */
+#define GAP_ERR_CONGESTED   (GAP_ERR_GRP + 0x12)    /* BT stack is congested                */
+#define GAP_ERR_SECURITY    (GAP_ERR_GRP + 0x13)    /* Security failed                      */
+
+#define GAP_ERR_PROCESSING  (GAP_ERR_GRP + 0x14)    /* General error processing BTM request */
+#define GAP_ERR_TIMEOUT     (GAP_ERR_GRP + 0x15)    /* Timeout occurred while processing cmd */
+#define GAP_EVT_CONN_OPENED         0x0100
+#define GAP_EVT_CONN_CLOSED         0x0101
+#define GAP_EVT_CONN_DATA_AVAIL     0x0102
+#define GAP_EVT_CONN_CONGESTED      0x0103
+#define GAP_EVT_CONN_UNCONGESTED    0x0104
+#define GAP_EVT_TX_EMPTY            0x0105
+
+/* Values for 'chan_mode_mask' field */
+/* GAP_ConnOpen() - optional channels to negotiate */
+#define GAP_FCR_CHAN_OPT_BASIC      L2CAP_FCR_CHAN_OPT_BASIC
+#define GAP_FCR_CHAN_OPT_ERTM       L2CAP_FCR_CHAN_OPT_ERTM
+#define GAP_FCR_CHAN_OPT_STREAM     L2CAP_FCR_CHAN_OPT_STREAM
+/*** used in connection variables and functions ***/
+#define GAP_INVALID_HANDLE      0xFFFF
+
+/* This is used to change the criteria for AMP  */
+#define GAP_PROTOCOL_ID         (UUID_PROTOCOL_UDP)
+
+
+#ifndef  GAP_PREFER_CONN_INT_MAX
+#define  GAP_PREFER_CONN_INT_MAX         BTM_BLE_CONN_INT_MIN
+#endif
+
+#ifndef  GAP_PREFER_CONN_INT_MIN
+#define  GAP_PREFER_CONN_INT_MIN         BTM_BLE_CONN_INT_MIN
+#endif
+
+#ifndef  GAP_PREFER_CONN_LATENCY
+#define  GAP_PREFER_CONN_LATENCY         0
+#endif
+
+#ifndef  GAP_PREFER_CONN_SP_TOUT
+#define  GAP_PREFER_CONN_SP_TOUT         2000
+#endif
+
+/*****************************************************************************
+**  Type Definitions
+*****************************************************************************/
+/*
+** Callback function for connection services
+*/
+typedef void (tGAP_CONN_CALLBACK) (UINT16 gap_handle, UINT16 event);
+
+/*
+** Define the callback function prototypes.  Parameters are specific
+** to each event and are described below
+*/
+typedef void (tGAP_CALLBACK) (UINT16 event, void *p_data);
+
+
+/* Definition of the GAP_FindAddrByName results structure */
+typedef struct
+{
+    UINT16       status;
+    BD_ADDR      bd_addr;
+    tBTM_BD_NAME devname;
+} tGAP_FINDADDR_RESULTS;
+
+typedef struct
+{
+    UINT16      int_min;
+    UINT16      int_max;
+    UINT16      latency;
+    UINT16      sp_tout;
+}tGAP_BLE_PREF_PARAM;
+
+typedef union
+{
+    tGAP_BLE_PREF_PARAM     conn_param;
+    BD_ADDR                 reconn_bda;
+    UINT16                  icon;
+    UINT8                   *p_dev_name;
+    UINT8                   addr_resolution;
+
+}tGAP_BLE_ATTR_VALUE;
+
+typedef void (tGAP_BLE_CMPL_CBACK)(BOOLEAN status, BD_ADDR addr, UINT16 length, char *p_name);
+
+
+/*****************************************************************************
+**  External Function Declarations
+*****************************************************************************/
+
+/*** Functions for L2CAP connection interface ***/
+
+/*******************************************************************************
+**
+** Function         GAP_ConnOpen
+**
+** Description      This function is called to open a generic L2CAP connection.
+**
+** Returns          handle of the connection if successful, else GAP_INVALID_HANDLE
+**
+*******************************************************************************/
+extern UINT16 GAP_ConnOpen (char *p_serv_name, UINT8 service_id, BOOLEAN is_server,
+                                    BD_ADDR p_rem_bda, UINT16 psm, tL2CAP_CFG_INFO *p_cfg,
+                                    tL2CAP_ERTM_INFO *ertm_info,
+                                    UINT16 security, UINT8 chan_mode_mask,
+                                    tGAP_CONN_CALLBACK *p_cb, tBT_TRANSPORT transport);
+
+/*******************************************************************************
+**
+** Function         GAP_ConnClose
+**
+** Description      This function is called to close a connection.
+**
+** Returns          BT_PASS             - closed OK
+**                  GAP_ERR_BAD_HANDLE  - invalid handle
+**
+*******************************************************************************/
+extern UINT16 GAP_ConnClose (UINT16 gap_handle);
+
+/*******************************************************************************
+**
+** Function         GAP_ConnReadData
+**
+** Description      GKI buffer unaware application will call this function
+**                  after receiving GAP_EVT_RXDATA event. A data copy is made
+**                  into the receive buffer parameter.
+**
+** Returns          BT_PASS             - data read
+**                  GAP_ERR_BAD_HANDLE  - invalid handle
+**                  GAP_NO_DATA_AVAIL   - no data available
+**
+*******************************************************************************/
+extern UINT16 GAP_ConnReadData (UINT16 gap_handle, UINT8 *p_data,
+                                        UINT16 max_len, UINT16 *p_len);
+
+/*******************************************************************************
+**
+** Function         GAP_GetRxQueueCnt
+**
+** Description      This function return number of bytes on the rx queue.
+**
+** Parameters:      handle     - Handle returned in the GAP_ConnOpen
+**                  p_rx_queue_count - Pointer to return queue count in.
+**
+**
+*******************************************************************************/
+extern int GAP_GetRxQueueCnt (UINT16 handle, UINT32 *p_rx_queue_count);
+
+/*******************************************************************************
+**
+** Function         GAP_ConnBTRead
+**
+** Description      GKI buffer aware applications will call this function after
+**                  receiving an GAP_EVT_RXDATA event to process the incoming
+**                  data buffer.
+**
+** Returns          BT_PASS             - data read
+**                  GAP_ERR_BAD_HANDLE  - invalid handle
+**                  GAP_NO_DATA_AVAIL   - no data available
+**
+*******************************************************************************/
+extern UINT16 GAP_ConnBTRead (UINT16 gap_handle, BT_HDR **pp_buf);
+
+/*******************************************************************************
+**
+** Function         GAP_ConnWriteData
+**
+** Description      GKI buffer unaware application will call this function
+**                  to send data to the connection. A data copy is made into a GKI
+**                  buffer.
+**
+** Returns          BT_PASS                 - data read
+**                  GAP_ERR_BAD_HANDLE      - invalid handle
+**                  GAP_ERR_BAD_STATE       - connection not established
+**                  GAP_CONGESTION          - system is congested
+**
+*******************************************************************************/
+extern UINT16 GAP_ConnWriteData (UINT16 gap_handle, UINT8 *p_data,
+                                         UINT16 max_len, UINT16 *p_len);
+
+/*******************************************************************************
+**
+** Function         GAP_ConnReconfig
+**
+** Description      Applications can call this function to reconfigure the connection.
+**
+** Returns          BT_PASS                 - config process started
+**                  GAP_ERR_BAD_HANDLE      - invalid handle
+**
+*******************************************************************************/
+extern UINT16 GAP_ConnReconfig (UINT16 gap_handle, tL2CAP_CFG_INFO *p_cfg);
+
+/*******************************************************************************
+**
+** Function         GAP_ConnSetIdleTimeout
+**
+** Description      Higher layers call this function to set the idle timeout for
+**                  a connection, or for all future connections. The "idle timeout"
+**                  is the amount of time that a connection can remain up with
+**                  no L2CAP channels on it. A timeout of zero means that the
+**                  connection will be torn down immediately when the last channel
+**                  is removed. A timeout of 0xFFFF means no timeout. Values are
+**                  in seconds.
+**
+** Returns          BT_PASS                 - config process started
+**                  GAP_ERR_BAD_HANDLE      - invalid handle
+**
+*******************************************************************************/
+extern UINT16 GAP_ConnSetIdleTimeout (UINT16 gap_handle, UINT16 timeout);
+
+/*******************************************************************************
+**
+** Function         GAP_ConnGetRemoteAddr
+**
+** Description      This function is called to get the remote BD address
+**                  of a connection.
+**
+** Returns          BT_PASS             - closed OK
+**                  GAP_ERR_BAD_HANDLE  - invalid handle
+**
+*******************************************************************************/
+extern UINT8 *GAP_ConnGetRemoteAddr (UINT16 gap_handle);
+
+/*******************************************************************************
+**
+** Function         GAP_ConnGetRemMtuSize
+**
+** Description      Returns the remote device's MTU size.
+**
+** Returns          UINT16 - maximum size buffer that can be transmitted to the peer
+**
+*******************************************************************************/
+extern UINT16 GAP_ConnGetRemMtuSize (UINT16 gap_handle);
+
+/*******************************************************************************
+**
+** Function         GAP_ConnGetL2CAPCid
+**
+** Description      Returns the L2CAP channel id
+**
+** Parameters:      handle      - Handle of the connection
+**
+** Returns          UINT16      - The L2CAP channel id
+**                  0, if error
+**
+*******************************************************************************/
+extern UINT16 GAP_ConnGetL2CAPCid (UINT16 gap_handle);
+
+/*******************************************************************************
+**
+** Function         GAP_SetTraceLevel
+**
+** Description      This function sets the trace level for GAP.  If called with
+**                  a value of 0xFF, it simply returns the current trace level.
+**
+** Returns          The new or current trace level
+**
+*******************************************************************************/
+extern UINT8 GAP_SetTraceLevel (UINT8 new_level);
+
+/*******************************************************************************
+**
+** Function         GAP_Init
+**
+** Description      Initializes the control blocks used by GAP.
+**                  This routine should not be called except once per
+**                      stack invocation.
+**
+** Returns          Nothing
+**
+*******************************************************************************/
+extern void GAP_Init(void);
+
+#if (BLE_INCLUDED == TRUE)
+/*******************************************************************************
+**
+** Function         GAP_BleAttrDBUpdate
+**
+** Description      update GAP local BLE attribute database.
+**
+** Returns          Nothing
+**
+*******************************************************************************/
+extern void GAP_BleAttrDBUpdate(UINT16 attr_uuid, tGAP_BLE_ATTR_VALUE *p_value);
+
+
+/*******************************************************************************
+**
+** Function         GAP_BleReadPeerPrefConnParams
+**
+** Description      Start a process to read a connected peripheral's preferred
+**                  connection parameters
+**
+** Returns          TRUE if read started, else FALSE if GAP is busy
+**
+*******************************************************************************/
+extern BOOLEAN GAP_BleReadPeerPrefConnParams (BD_ADDR peer_bda);
+
+/*******************************************************************************
+**
+** Function         GAP_BleReadPeerDevName
+**
+** Description      Start a process to read a connected peripheral's device name.
+**
+** Returns          TRUE if request accepted
+**
+*******************************************************************************/
+extern BOOLEAN GAP_BleReadPeerDevName (BD_ADDR peer_bda, tGAP_BLE_CMPL_CBACK *p_cback);
+
+
+/*******************************************************************************
+**
+** Function         GAP_BleReadPeerAddressResolutionCap
+**
+** Description      Start a process to read peer address resolution capability
+**
+** Returns          TRUE if request accepted
+**
+*******************************************************************************/
+extern BOOLEAN GAP_BleReadPeerAddressResolutionCap (BD_ADDR peer_bda,
+                                                    tGAP_BLE_CMPL_CBACK *p_cback);
+
+/*******************************************************************************
+**
+** Function         GAP_BleCancelReadPeerDevName
+**
+** Description      Cancel reading a peripheral's device name.
+**
+** Returns          TRUE if request accepted
+**
+*******************************************************************************/
+extern BOOLEAN GAP_BleCancelReadPeerDevName (BD_ADDR peer_bda);
+
+
+#endif
+
+#endif  /* GAP_API_H */
diff --git a/rtkbt/code/bt/stack/include/gatt_api.h b/rtkbt/code/bt/stack/include/gatt_api.h
new file mode 100755
index 0000000..371fc16
--- /dev/null
+++ b/rtkbt/code/bt/stack/include/gatt_api.h
@@ -0,0 +1,1192 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+#ifndef GATT_API_H
+#define GATT_API_H
+
+#include "bt_target.h"
+#include "gattdefs.h"
+#include "btm_ble_api.h"
+
+/*****************************************************************************
+**  Constants
+*****************************************************************************/
+/* Success code and error codes */
+#define  GATT_SUCCESS                        0x00
+#define  GATT_INVALID_HANDLE                 0x01
+#define  GATT_READ_NOT_PERMIT                0x02
+#define  GATT_WRITE_NOT_PERMIT               0x03
+#define  GATT_INVALID_PDU                    0x04
+#define  GATT_INSUF_AUTHENTICATION           0x05
+#define  GATT_REQ_NOT_SUPPORTED              0x06
+#define  GATT_INVALID_OFFSET                 0x07
+#define  GATT_INSUF_AUTHORIZATION            0x08
+#define  GATT_PREPARE_Q_FULL                 0x09
+#define  GATT_NOT_FOUND                      0x0a
+#define  GATT_NOT_LONG                       0x0b
+#define  GATT_INSUF_KEY_SIZE                 0x0c
+#define  GATT_INVALID_ATTR_LEN               0x0d
+#define  GATT_ERR_UNLIKELY                   0x0e
+#define  GATT_INSUF_ENCRYPTION               0x0f
+#define  GATT_UNSUPPORT_GRP_TYPE             0x10
+#define  GATT_INSUF_RESOURCE                 0x11
+
+
+#define  GATT_ILLEGAL_PARAMETER              0x87
+#define  GATT_NO_RESOURCES                   0x80
+#define  GATT_INTERNAL_ERROR                 0x81
+#define  GATT_WRONG_STATE                    0x82
+#define  GATT_DB_FULL                        0x83
+#define  GATT_BUSY                           0x84
+#define  GATT_ERROR                          0x85
+#define  GATT_CMD_STARTED                    0x86
+#define  GATT_PENDING                        0x88
+#define  GATT_AUTH_FAIL                      0x89
+#define  GATT_MORE                           0x8a
+#define  GATT_INVALID_CFG                    0x8b
+#define  GATT_SERVICE_STARTED                0x8c
+#define  GATT_ENCRYPED_MITM                  GATT_SUCCESS
+#define  GATT_ENCRYPED_NO_MITM               0x8d
+#define  GATT_NOT_ENCRYPTED                  0x8e
+#define  GATT_CONGESTED                      0x8f
+
+                                             /* 0xE0 ~ 0xFC reserved for future use */
+#define  GATT_CCC_CFG_ERR                    0xFD /* Client Characteristic Configuration Descriptor Improperly Configured */
+#define  GATT_PRC_IN_PROGRESS                0xFE /* Procedure Already in progress */
+#define  GATT_OUT_OF_RANGE                   0xFF /* Attribute value out of range */
+typedef UINT8 tGATT_STATUS;
+
+
+#define  GATT_RSP_ERROR                      0x01
+#define  GATT_REQ_MTU                        0x02
+#define  GATT_RSP_MTU                        0x03
+#define  GATT_REQ_FIND_INFO                  0x04
+#define  GATT_RSP_FIND_INFO                  0x05
+#define  GATT_REQ_FIND_TYPE_VALUE            0x06
+#define  GATT_RSP_FIND_TYPE_VALUE            0x07
+#define  GATT_REQ_READ_BY_TYPE               0x08
+#define  GATT_RSP_READ_BY_TYPE               0x09
+#define  GATT_REQ_READ                       0x0A
+#define  GATT_RSP_READ                       0x0B
+#define  GATT_REQ_READ_BLOB                  0x0C
+#define  GATT_RSP_READ_BLOB                  0x0D
+#define  GATT_REQ_READ_MULTI                 0x0E
+#define  GATT_RSP_READ_MULTI                 0x0F
+#define  GATT_REQ_READ_BY_GRP_TYPE           0x10
+#define  GATT_RSP_READ_BY_GRP_TYPE           0x11
+#define  GATT_REQ_WRITE                      0x12 /*                 0001-0010 (write)*/
+#define  GATT_RSP_WRITE                      0x13
+#define  GATT_CMD_WRITE                      0x52 /* changed in V4.0 01001-0010(write cmd)*/
+#define  GATT_REQ_PREPARE_WRITE              0x16
+#define  GATT_RSP_PREPARE_WRITE              0x17
+#define  GATT_REQ_EXEC_WRITE                 0x18
+#define  GATT_RSP_EXEC_WRITE                 0x19
+#define  GATT_HANDLE_VALUE_NOTIF             0x1B
+#define  GATT_HANDLE_VALUE_IND               0x1D
+#define  GATT_HANDLE_VALUE_CONF              0x1E
+#define  GATT_SIGN_CMD_WRITE                 0xD2 /* changed in V4.0 1101-0010 (signed write)  see write cmd above*/
+#define  GATT_OP_CODE_MAX                    GATT_HANDLE_VALUE_CONF + 1 /* 0x1E = 30 + 1 = 31*/
+
+
+#define  GATT_HANDLE_IS_VALID(x) ((x) != 0)
+
+#define GATT_CONN_UNKNOWN                   0
+#define GATT_CONN_L2C_FAILURE               1                               /* general L2cap failure  */
+#define GATT_CONN_TIMEOUT                   HCI_ERR_CONNECTION_TOUT         /* 0x08 connection timeout  */
+#define GATT_CONN_TERMINATE_PEER_USER       HCI_ERR_PEER_USER               /* 0x13 connection terminate by peer user  */
+#define GATT_CONN_TERMINATE_LOCAL_HOST      HCI_ERR_CONN_CAUSE_LOCAL_HOST   /* 0x16 connectionterminated by local host  */
+#define GATT_CONN_FAIL_ESTABLISH            HCI_ERR_CONN_FAILED_ESTABLISHMENT/* 0x03E connection fail to establish  */
+#define GATT_CONN_LMP_TIMEOUT               HCI_ERR_LMP_RESPONSE_TIMEOUT     /* 0x22 connection fail for LMP response tout */
+#define GATT_CONN_CANCEL                    L2CAP_CONN_CANCEL                /* 0x0100 L2CAP connection cancelled  */
+typedef UINT16 tGATT_DISCONN_REASON;
+
+/* MAX GATT MTU size
+*/
+#ifndef GATT_MAX_MTU_SIZE
+    #define GATT_MAX_MTU_SIZE     517
+#endif
+
+/* max legth of an attribute value
+*/
+#ifndef GATT_MAX_ATTR_LEN
+    #define GATT_MAX_ATTR_LEN     600
+#endif
+
+/* default GATT MTU size over LE link
+*/
+#define GATT_DEF_BLE_MTU_SIZE       23
+
+/* invalid connection ID
+*/
+#define GATT_INVALID_CONN_ID        0xFFFF
+
+#ifndef GATT_CL_MAX_LCB
+    #define GATT_CL_MAX_LCB     22
+#endif
+
+#ifndef GATT_MAX_SCCB
+    #define GATT_MAX_SCCB       10
+#endif
+
+
+/* GATT notification caching timer, default to be three seconds
+*/
+#ifndef GATTC_NOTIF_TIMEOUT
+    #define GATTC_NOTIF_TIMEOUT   3
+#endif
+
+/*****************************************************************************
+** GATT Structure Definition
+*****************************************************************************/
+
+/* Attribute permissions
+*/
+#define GATT_PERM_READ              (1 << 0) /* bit 0 */
+#define GATT_PERM_READ_ENCRYPTED    (1 << 1) /* bit 1 */
+#define GATT_PERM_READ_ENC_MITM     (1 << 2) /* bit 2 */
+#define GATT_PERM_WRITE             (1 << 4) /* bit 4 */
+#define GATT_PERM_WRITE_ENCRYPTED   (1 << 5) /* bit 5 */
+#define GATT_PERM_WRITE_ENC_MITM    (1 << 6) /* bit 6 */
+#define GATT_PERM_WRITE_SIGNED      (1 << 7) /* bit 7 */
+#define GATT_PERM_WRITE_SIGNED_MITM (1 << 8) /* bit 8 */
+typedef UINT16 tGATT_PERM;
+
+#define GATT_ENCRYPT_KEY_SIZE_MASK  (0xF000) /* the MS nibble of tGATT_PERM; key size 7=0; size 16=9 */
+
+#define GATT_READ_ALLOWED           (GATT_PERM_READ | GATT_PERM_READ_ENCRYPTED | GATT_PERM_READ_ENC_MITM)
+#define GATT_READ_AUTH_REQUIRED     (GATT_PERM_READ_ENCRYPTED)
+#define GATT_READ_MITM_REQUIRED     (GATT_PERM_READ_ENC_MITM)
+#define GATT_READ_ENCRYPTED_REQUIRED   (GATT_PERM_READ_ENCRYPTED | GATT_PERM_READ_ENC_MITM)
+
+
+#define GATT_WRITE_ALLOWED          (GATT_PERM_WRITE | GATT_PERM_WRITE_ENCRYPTED | GATT_PERM_WRITE_ENC_MITM | \
+                                     GATT_PERM_WRITE_SIGNED | GATT_PERM_WRITE_SIGNED_MITM)
+
+#define GATT_WRITE_AUTH_REQUIRED    (GATT_PERM_WRITE_ENCRYPTED | GATT_PERM_WRITE_SIGNED)
+
+#define GATT_WRITE_MITM_REQUIRED    (GATT_PERM_WRITE_ENC_MITM | GATT_PERM_WRITE_SIGNED_MITM)
+
+#define GATT_WRITE_ENCRYPTED_PERM   (GATT_PERM_WRITE_ENCRYPTED | GATT_PERM_WRITE_ENC_MITM)
+
+#define GATT_WRITE_SIGNED_PERM      (GATT_PERM_WRITE_SIGNED | GATT_PERM_WRITE_SIGNED_MITM)
+
+
+/* Characteristic properties
+*/
+#define GATT_CHAR_PROP_BIT_BROADCAST    (1 << 0)
+#define GATT_CHAR_PROP_BIT_READ         (1 << 1)
+#define GATT_CHAR_PROP_BIT_WRITE_NR     (1 << 2)
+#define GATT_CHAR_PROP_BIT_WRITE        (1 << 3)
+#define GATT_CHAR_PROP_BIT_NOTIFY       (1 << 4)
+#define GATT_CHAR_PROP_BIT_INDICATE     (1 << 5)
+#define GATT_CHAR_PROP_BIT_AUTH         (1 << 6)
+#define GATT_CHAR_PROP_BIT_EXT_PROP     (1 << 7)
+typedef UINT8 tGATT_CHAR_PROP;
+
+
+/* Format of the value of a characteristic. enumeration type
+*/
+enum
+{
+    GATT_FORMAT_RES,            /* rfu */
+    GATT_FORMAT_BOOL,           /* 0x01 boolean */
+    GATT_FORMAT_2BITS,           /* 0x02 2 bit */
+    GATT_FORMAT_NIBBLE,         /* 0x03 nibble */
+    GATT_FORMAT_UINT8,          /* 0x04 uint8 */
+    GATT_FORMAT_UINT12,         /* 0x05 uint12 */
+    GATT_FORMAT_UINT16,         /* 0x06 uint16 */
+    GATT_FORMAT_UINT24,         /* 0x07 uint24 */
+    GATT_FORMAT_UINT32,         /* 0x08 uint32 */
+    GATT_FORMAT_UINT48,         /* 0x09 uint48 */
+    GATT_FORMAT_UINT64,         /* 0x0a uint64 */
+    GATT_FORMAT_UINT128,        /* 0x0B uint128 */
+    GATT_FORMAT_SINT8,          /* 0x0C signed 8 bit integer */
+    GATT_FORMAT_SINT12,         /* 0x0D signed 12 bit integer */
+    GATT_FORMAT_SINT16,         /* 0x0E signed 16 bit integer */
+    GATT_FORMAT_SINT24,         /* 0x0F signed 24 bit integer */
+    GATT_FORMAT_SINT32,         /* 0x10 signed 32 bit integer */
+    GATT_FORMAT_SINT48,         /* 0x11 signed 48 bit integer */
+    GATT_FORMAT_SINT64,         /* 0x12 signed 64 bit integer */
+    GATT_FORMAT_SINT128,        /* 0x13 signed 128 bit integer */
+    GATT_FORMAT_FLOAT32,        /* 0x14 float 32 */
+    GATT_FORMAT_FLOAT64,        /* 0x15 float 64*/
+    GATT_FORMAT_SFLOAT,         /* 0x16 IEEE-11073 16 bit SFLOAT */
+    GATT_FORMAT_FLOAT,          /* 0x17 IEEE-11073 32 bit SFLOAT */
+    GATT_FORMAT_DUINT16,        /* 0x18 IEEE-20601 format */
+    GATT_FORMAT_UTF8S,          /* 0x19 UTF-8 string */
+    GATT_FORMAT_UTF16S,         /* 0x1a UTF-16 string */
+    GATT_FORMAT_STRUCT,         /* 0x1b Opaque structure*/
+    GATT_FORMAT_MAX             /* 0x1c or above reserved */
+};
+typedef UINT8 tGATT_FORMAT;
+
+/* Characteristic Presentation Format Descriptor value
+*/
+typedef struct
+{
+    UINT16              unit;       /* as UUIUD defined by SIG */
+    UINT16              descr;       /* as UUID as defined by SIG */
+    tGATT_FORMAT        format;
+    INT8                exp;
+    UINT8               name_spc;   /* The name space of the description */
+} tGATT_CHAR_PRES;
+
+/* Characteristic Report reference Descriptor format
+*/
+typedef struct
+{
+    UINT8              rpt_id;       /* report ID */
+    UINT8              rpt_type;       /* report type */
+} tGATT_CHAR_RPT_REF;
+
+
+#define GATT_VALID_RANGE_MAX_SIZE       16
+typedef struct
+{
+    UINT8                   format;
+    UINT16                  len;
+    UINT8                   lower_range[GATT_VALID_RANGE_MAX_SIZE]; /* in little endian format */
+    UINT8                   upper_range[GATT_VALID_RANGE_MAX_SIZE];
+} tGATT_VALID_RANGE;
+
+/* Characteristic Aggregate Format attribute value
+*/
+#define GATT_AGGR_HANDLE_NUM_MAX        10
+typedef struct
+{
+    UINT8                   num_handle;
+    UINT16                  handle_list[GATT_AGGR_HANDLE_NUM_MAX];
+} tGATT_CHAR_AGGRE;
+
+/* Characteristic descriptor: Extended Properties value
+*/
+#define GATT_CHAR_BIT_REL_WRITE    0x0001       /* permits reliable writes of the Characteristic Value */
+#define GATT_CHAR_BIT_WRITE_AUX    0x0002       /* permits writes to the characteristic descriptor */
+
+
+/* characteristic descriptor: client configuration value
+*/
+#define GATT_CLT_CONFIG_NONE               0x0000
+#define GATT_CLT_CONFIG_NOTIFICATION       0x0001
+#define GATT_CLT_CONFIG_INDICATION         0x0002
+typedef UINT16 tGATT_CLT_CHAR_CONFIG;
+
+
+/* characteristic descriptor: server configuration value
+*/
+#define GATT_SVR_CONFIG_NONE                     0x0000
+#define GATT_SVR_CONFIG_BROADCAST                0x0001
+typedef UINT16 tGATT_SVR_CHAR_CONFIG;
+
+/* Characteristic descriptor: Extended Properties value
+*/
+#define GATT_CHAR_BIT_REL_WRITE    0x0001       /* permits reliable writes of the Characteristic Value */
+#define GATT_CHAR_BIT_WRITE_AUX    0x0002       /* permits writes to the characteristic descriptor */
+
+/* authentication requirement
+*/
+#define GATT_AUTH_REQ_NONE              0
+#define GATT_AUTH_REQ_NO_MITM           1   /* unauthenticated encryption */
+#define GATT_AUTH_REQ_MITM              2   /* authenticated encryption */
+#define GATT_AUTH_REQ_SIGNED_NO_MITM    3
+#define GATT_AUTH_REQ_SIGNED_MITM       4
+typedef UINT8 tGATT_AUTH_REQ;
+
+/* Attribute Value structure
+*/
+typedef struct
+{
+    UINT16          conn_id;
+    UINT16          handle;     /* attribute handle */
+    UINT16          offset;     /* attribute value offset, if no offfset is needed for the command, ignore it */
+    UINT16          len;        /* length of attribute value */
+    tGATT_AUTH_REQ  auth_req;   /*  authentication request */
+    UINT8           value[GATT_MAX_ATTR_LEN];  /* the actual attribute value */
+} tGATT_VALUE;
+
+/* Union of the event data which is used in the server respond API to carry the server response information
+*/
+typedef union
+{
+    /* data type            member          event   */
+    tGATT_VALUE             attr_value;     /* READ, HANDLE_VALUE_IND, PREPARE_WRITE */
+                                            /* READ_BLOB, READ_BY_TYPE */
+    UINT16                  handle;         /* WRITE, WRITE_BLOB */
+
+} tGATTS_RSP;
+
+/* Transports for the primary service  */
+#define GATT_TRANSPORT_LE           BT_TRANSPORT_LE
+#define GATT_TRANSPORT_BR_EDR       BT_TRANSPORT_BR_EDR
+#define GATT_TRANSPORT_LE_BR_EDR    (BT_TRANSPORT_LE|BT_TRANSPORT_BR_EDR)
+typedef UINT8 tGATT_TRANSPORT;
+
+#define GATT_PREP_WRITE_CANCEL   0x00
+#define GATT_PREP_WRITE_EXEC     0x01
+typedef UINT8   tGATT_EXEC_FLAG;
+
+/* read request always based on UUID */
+typedef struct
+{
+    UINT16        handle;
+    UINT16        offset;
+    BOOLEAN       is_long;
+} tGATT_READ_REQ;
+
+/* write request data */
+typedef struct
+{
+    UINT16          handle;     /* attribute handle */
+    UINT16          offset;     /* attribute value offset, if no offfset is needed for the command, ignore it */
+    UINT16          len;        /* length of attribute value */
+    UINT8           value[GATT_MAX_ATTR_LEN];  /* the actual attribute value */
+    BOOLEAN         need_rsp;   /* need write response */
+    BOOLEAN         is_prep;    /* is prepare write */
+} tGATT_WRITE_REQ;
+
+/* callback data for server access request from client */
+typedef union
+{
+    tGATT_READ_REQ         read_req;       /* read request, read by Type, read blob */
+
+    tGATT_WRITE_REQ        write_req;    /* write */
+                                         /* prepare write */
+                                         /* write blob */
+    UINT16                 handle;       /* handle value confirmation */
+    UINT16                 mtu;          /* MTU exchange request */
+    tGATT_EXEC_FLAG        exec_write;    /* execute write */
+} tGATTS_DATA;
+
+typedef UINT8 tGATT_SERV_IF;               /* GATT Service Interface */
+
+enum
+{
+    GATTS_REQ_TYPE_READ = 1,        /* Attribute read request */
+    GATTS_REQ_TYPE_WRITE,           /* Attribute write request */
+    GATTS_REQ_TYPE_WRITE_EXEC,      /* Execute write */
+    GATTS_REQ_TYPE_MTU,             /* MTU exchange information */
+    GATTS_REQ_TYPE_CONF             /* handle value confirmation */
+};
+typedef UINT8   tGATTS_REQ_TYPE;
+
+
+
+/* Client Used Data Structure
+*/
+/* definition of different discovery types */
+enum
+{
+    GATT_DISC_SRVC_ALL = 1,     /* discover all services */
+    GATT_DISC_SRVC_BY_UUID,     /* discover service of a special type */
+    GATT_DISC_INC_SRVC,         /* discover the included service within a service */
+    GATT_DISC_CHAR,             /* discover characteristics of a service with/without type requirement */
+    GATT_DISC_CHAR_DSCPT,       /* discover characteristic descriptors of a character */
+    GATT_DISC_MAX               /* maximnun discover type */
+};
+typedef UINT8   tGATT_DISC_TYPE;
+
+/* Discover parameters of different discovery types
+*/
+typedef struct
+{
+    tBT_UUID    service;
+    UINT16      s_handle;
+    UINT16      e_handle;
+}tGATT_DISC_PARAM;
+
+/* GATT read type enumeration
+*/
+enum
+{
+    GATT_READ_BY_TYPE =        1,
+    GATT_READ_BY_HANDLE,
+    GATT_READ_MULTIPLE,
+    GATT_READ_CHAR_VALUE,
+    GATT_READ_PARTIAL,
+    GATT_READ_MAX
+};
+typedef UINT8 tGATT_READ_TYPE;
+
+/* Read By Type Request (GATT_READ_BY_TYPE) Data
+*/
+typedef struct
+{
+    tGATT_AUTH_REQ      auth_req;
+    UINT16              s_handle;
+    UINT16              e_handle;
+    tBT_UUID            uuid;
+} tGATT_READ_BY_TYPE;
+
+/*   GATT_READ_MULTIPLE request data
+*/
+#define GATT_MAX_READ_MULTI_HANDLES      10           /* Max attributes to read in one request */
+typedef struct
+{
+    tGATT_AUTH_REQ          auth_req;
+    UINT16                  num_handles;                            /* number of handles to read */
+    UINT16                  handles[GATT_MAX_READ_MULTI_HANDLES];   /* handles list to be read */
+} tGATT_READ_MULTI;
+
+/*   Read By Handle Request (GATT_READ_BY_HANDLE) data */
+typedef struct
+{
+    tGATT_AUTH_REQ         auth_req;
+    UINT16                 handle;
+} tGATT_READ_BY_HANDLE;
+
+/*   READ_BT_HANDLE_Request data */
+typedef struct
+{
+    tGATT_AUTH_REQ         auth_req;
+    UINT16                 handle;
+    UINT16                 offset;
+} tGATT_READ_PARTIAL;
+
+/* Read Request Data
+*/
+typedef union
+{
+    tGATT_READ_BY_TYPE   service;
+    tGATT_READ_BY_TYPE   char_type;        /* characterisitc type */
+    tGATT_READ_MULTI     read_multiple;
+    tGATT_READ_BY_HANDLE by_handle;
+    tGATT_READ_PARTIAL   partial;
+} tGATT_READ_PARAM;
+
+/* GATT write type enumeration */
+enum
+{
+    GATT_WRITE_NO_RSP = 1,
+    GATT_WRITE ,
+    GATT_WRITE_PREPARE
+};
+typedef UINT8 tGATT_WRITE_TYPE;
+
+/* Client Operation Complete Callback Data
+*/
+typedef union
+{
+    tGATT_VALUE          att_value;
+    UINT16               mtu;
+    UINT16               handle;
+} tGATT_CL_COMPLETE;
+
+/* GATT client operation type, used in client callback function
+*/
+#define GATTC_OPTYPE_NONE                 0
+#define GATTC_OPTYPE_DISCOVERY            1
+#define GATTC_OPTYPE_READ                 2
+#define GATTC_OPTYPE_WRITE                3
+#define GATTC_OPTYPE_EXE_WRITE            4
+#define GATTC_OPTYPE_CONFIG               5
+#define GATTC_OPTYPE_NOTIFICATION         6
+#define GATTC_OPTYPE_INDICATION           7
+typedef UINT8 tGATTC_OPTYPE;
+
+/* characteristic declaration
+*/
+typedef struct
+{
+    tGATT_CHAR_PROP       char_prop;   /* characterisitc properties */
+    UINT16                val_handle;  /* characteristic value attribute handle */
+    tBT_UUID              char_uuid;   /* characteristic UUID type */
+} tGATT_CHAR_DCLR_VAL;
+
+/* primary service group data
+*/
+typedef struct
+{
+    UINT16          e_handle;       /* ending handle of the group */
+    tBT_UUID        service_type;   /* group type */
+} tGATT_GROUP_VALUE;
+
+
+/* included service attribute value
+*/
+typedef struct
+{
+    tBT_UUID    service_type;       /* included service UUID */
+    UINT16      s_handle;           /* starting handle */
+    UINT16      e_handle;           /* ending handle */
+} tGATT_INCL_SRVC;
+
+typedef union
+{
+    tGATT_INCL_SRVC     incl_service;  /* include service value */
+    tGATT_GROUP_VALUE   group_value;   /* Service UUID type.
+                                          This field is used with GATT_DISC_SRVC_ALL
+                                          or GATT_DISC_SRVC_BY_UUID
+                                          type of discovery result callback. */
+
+    UINT16              handle;        /* When used with GATT_DISC_INC_SRVC type discovery result,
+                                          it is the included service starting handle.*/
+
+    tGATT_CHAR_DCLR_VAL dclr_value;    /* Characteristic declaration value.
+                                          This field is used with GATT_DISC_CHAR type discovery.*/
+} tGATT_DISC_VALUE;
+
+/* discover result record
+*/
+typedef struct
+{
+    tBT_UUID            type;
+    UINT16              handle;
+    tGATT_DISC_VALUE    value;
+} tGATT_DISC_RES;
+
+
+#define GATT_LINK_IDLE_TIMEOUT_WHEN_NO_APP    1 /* start a idle timer for this duration
+                                                 when no application need to use the link */
+
+#define GATT_LINK_NO_IDLE_TIMEOUT            0xFFFF
+
+#define GATT_INVALID_ACL_HANDLE              0xFFFF
+/* discover result callback function */
+typedef void (tGATT_DISC_RES_CB) (UINT16 conn_id, tGATT_DISC_TYPE disc_type,
+                                    tGATT_DISC_RES *p_data);
+
+/* discover complete callback function */
+typedef void (tGATT_DISC_CMPL_CB) (UINT16 conn_id, tGATT_DISC_TYPE disc_type, tGATT_STATUS status);
+
+/* Define a callback function for when read/write/disc/config operation is completed. */
+typedef void (tGATT_CMPL_CBACK) (UINT16 conn_id, tGATTC_OPTYPE op, tGATT_STATUS status,
+                tGATT_CL_COMPLETE *p_data);
+
+/* Define a callback function when an initialized connection is established. */
+typedef void (tGATT_CONN_CBACK) (tGATT_IF gatt_if, BD_ADDR bda, UINT16 conn_id, BOOLEAN connected,
+                                    tGATT_DISCONN_REASON reason, tBT_TRANSPORT transport);
+
+/* attribute request callback for ATT server */
+typedef void  (tGATT_REQ_CBACK )(UINT16 conn_id, UINT32 trans_id, tGATTS_REQ_TYPE type,
+                                tGATTS_DATA *p_data);
+
+/* channel congestion/uncongestion callback */
+typedef void (tGATT_CONGESTION_CBACK )(UINT16 conn_id, BOOLEAN congested);
+
+/* Define a callback function when encryption is established. */
+typedef void (tGATT_ENC_CMPL_CB)(tGATT_IF gatt_if, BD_ADDR bda);
+
+
+/* Define the structure that applications use to register with
+** GATT. This structure includes callback functions. All functions
+** MUST be provided.
+*/
+typedef struct
+{
+    tGATT_CONN_CBACK                *p_conn_cb;
+    tGATT_CMPL_CBACK                *p_cmpl_cb;
+    tGATT_DISC_RES_CB               *p_disc_res_cb;
+    tGATT_DISC_CMPL_CB              *p_disc_cmpl_cb;
+    tGATT_REQ_CBACK                 *p_req_cb;
+    tGATT_ENC_CMPL_CB               *p_enc_cmpl_cb;
+    tGATT_CONGESTION_CBACK          *p_congestion_cb;
+} tGATT_CBACK;
+
+/***********************  Start Handle Management Definitions   **********************
+*/
+
+
+typedef struct
+{
+    tBT_UUID app_uuid128;
+    tBT_UUID svc_uuid;
+    UINT16   svc_inst;
+    UINT16   s_handle;
+    UINT16   e_handle;
+    BOOLEAN  is_primary;      /* primary service or secondary */
+} tGATTS_HNDL_RANGE;
+
+
+
+#define GATTS_SRV_CHG_CMD_ADD_CLIENT       1
+#define GATTS_SRV_CHG_CMD_UPDATE_CLIENT    2
+#define GATTS_SRV_CHG_CMD_REMOVE_CLIENT    3
+#define GATTS_SRV_CHG_CMD_READ_NUM_CLENTS  4
+#define GATTS_SRV_CHG_CMD_READ_CLENT       5
+typedef UINT8 tGATTS_SRV_CHG_CMD;
+
+typedef struct
+{
+    BD_ADDR         bda;
+    BOOLEAN         srv_changed;
+} tGATTS_SRV_CHG;
+
+
+typedef union
+{
+    tGATTS_SRV_CHG  srv_chg;
+    UINT8           client_read_index; /* only used for sequential reading client srv chg info */
+} tGATTS_SRV_CHG_REQ;
+
+typedef union
+{
+    tGATTS_SRV_CHG srv_chg;
+    UINT8 num_clients;
+} tGATTS_SRV_CHG_RSP;
+
+
+
+typedef struct
+{
+    tGATTS_HNDL_RANGE   *p_new_srv_start;
+} tGATTS_PENDING_NEW_SRV_START;
+
+/* Attibute server handle ranges NV storage callback functions
+*/
+typedef void  (tGATTS_NV_SAVE_CBACK)(BOOLEAN is_saved, tGATTS_HNDL_RANGE *p_hndl_range);
+typedef BOOLEAN  (tGATTS_NV_SRV_CHG_CBACK)(tGATTS_SRV_CHG_CMD cmd, tGATTS_SRV_CHG_REQ *p_req,
+                                            tGATTS_SRV_CHG_RSP *p_rsp);
+
+typedef struct
+{
+    tGATTS_NV_SAVE_CBACK       *p_nv_save_callback;
+    tGATTS_NV_SRV_CHG_CBACK    *p_srv_chg_callback;
+} tGATT_APPL_INFO;
+
+/*
+***********************  End Handle Management Definitions   **********************/
+
+/*****************************************************************************
+**  External Function Declarations
+*****************************************************************************/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+/*******************************************************************************
+**
+** Function         GATT_SetTraceLevel
+**
+** Description      This function sets the trace level.  If called with
+**                  a value of 0xFF, it simply returns the current trace level.
+**
+** Returns          The new or current trace level
+**
+*******************************************************************************/
+extern UINT8 GATT_SetTraceLevel (UINT8 new_level);
+
+
+/*******************************************************************************/
+/* GATT Profile API Functions */
+/*******************************************************************************/
+/* GATT Profile Server Functions */
+/*******************************************************************************/
+/*******************************************************************************
+**
+** Function         GATTS_AddHandleRange
+**
+** Description      This function add the allocated handles range for the specifed
+**                  application UUID, service UUID and service instance
+**
+** Parameter        p_hndl_range:   pointer to allocated handles information
+**
+** Returns          TRUE if handle range is added sucessfully; otherwise FALSE.
+**
+*******************************************************************************/
+
+extern BOOLEAN GATTS_AddHandleRange(tGATTS_HNDL_RANGE *p_hndl_range);
+
+/*******************************************************************************
+**
+** Function         GATTS_NVRegister
+**
+** Description      Application manager calls this function to register for
+**                  NV save callback function.  There can be one and only one
+**                  NV save callback function.
+**
+** Parameter        p_cb_info : callback informaiton
+**
+** Returns          TRUE if registered OK, else FALSE
+**
+*******************************************************************************/
+extern BOOLEAN  GATTS_NVRegister (tGATT_APPL_INFO *p_cb_info);
+
+
+/*******************************************************************************
+**
+** Function         GATTS_CreateService
+**
+** Description      This function is called to reserve a block of handles for a service.
+**
+**                  *** It should be called only once per service instance  ***
+**
+** Parameter        gatt_if       : application if
+**                  p_svc_uuid    : service UUID
+**                  svc_inst      : instance of the service inside the application
+**                  num_handles   : number of handles needed by the service.
+**                  is_pri        : is a primary service or not.
+**
+** Returns          service handle if sucessful, otherwise 0.
+**
+*******************************************************************************/
+extern UINT16 GATTS_CreateService (tGATT_IF gatt_if, tBT_UUID *p_svc_uuid,
+                                   UINT16 svc_inst, UINT16 num_handles, BOOLEAN is_pri);
+
+
+/*******************************************************************************
+**
+** Function         GATTS_AddIncludeService
+**
+** Description      This function is called to add an included service.
+**
+** Parameter        service_handle : To which service this included service is added to.
+**                  include_svc_handle    : included service handle.
+**
+** Returns          included service attribute handle. If 0, add included service
+**                  fail.
+**
+*******************************************************************************/
+extern UINT16 GATTS_AddIncludeService (UINT16 service_handle,
+                                       UINT16 include_svc_handle);
+
+
+/*******************************************************************************
+**
+** Function         GATTS_AddCharacteristic
+**
+** Description      This function is called to add a characteristic into a service.
+**                  It will add a characteristic declaration and characteristic
+**                  value declaration into the service database identified by the
+**                  service handle.
+**
+** Parameter        service_handle : To which service this included service is added to.
+**                  char_uuid : Characteristic UUID.
+**                  perm      : Characteristic value declaration attribute permission.
+**                  property  : Characteristic Properties
+**
+** Returns          Characteristic value declaration attribute handle. 0 if add
+**                  characteristic failed.
+**
+*******************************************************************************/
+extern UINT16 GATTS_AddCharacteristic (UINT16 service_handle, tBT_UUID *char_uuid,
+                                       tGATT_PERM perm,tGATT_CHAR_PROP property);
+
+/*******************************************************************************
+**
+** Function         GATTS_AddCharDescriptor
+**
+** Description      This function is called to add a characteristic descriptor
+**                  into a service database. Add descriptor should follow add char
+**                  to which it belongs, and next add char should be done only
+**                  after all add descriptors for the previous char.
+**
+** Parameter        service_handle  : To which service this characteristic descriptor
+**                                    is added to.
+**                  perm            : Characteristic value declaration attribute
+**                                    permission.
+**                  p_descr_uuid    : Characteristic descriptor UUID.
+**
+** Returns         Characteristic descriptor attribute handle. 0 if add
+**                 characteristic descriptor failed.
+**
+*******************************************************************************/
+extern UINT16 GATTS_AddCharDescriptor (UINT16 service_handle, tGATT_PERM perm,
+                                       tBT_UUID * p_descr_uuid);
+
+/*******************************************************************************
+**
+** Function         GATTS_DeleteService
+**
+** Description      This function is called to delete a service.
+**
+** Parameter        gatt_if       : application interface
+**                  p_svc_uuid    : service UUID
+**                  svc_inst      : instance of the service inside the application
+**
+** Returns          TRUE if operation succeed, FALSE if handle block was not found.
+**
+*******************************************************************************/
+extern BOOLEAN GATTS_DeleteService (tGATT_IF gatt_if, tBT_UUID *p_svc_uuid,
+                                    UINT16 svc_inst);
+
+/*******************************************************************************
+**
+** Function         GATTS_StartService
+**
+** Description      This function is called to start a service with GATT
+**
+** Parameter        gatt_if : service handle.
+**                  p_cback       : application service callback functions.
+**                  sup_transport : supported transport(s) for this primary service
+**
+** return           GATT_SUCCESS if sucessfully started; otherwise error code.
+**
+*******************************************************************************/
+extern tGATT_STATUS GATTS_StartService (tGATT_IF gatt_if, UINT16 service_handle,
+                                        tGATT_TRANSPORT sup_transport);
+
+
+/*******************************************************************************
+**
+** Function         GATTS_StopService
+**
+** Description      This function is called to stop a service
+**
+** Parameter         service_handle : this is the start handle of a service
+**
+** Returns          None.
+**
+*******************************************************************************/
+extern void GATTS_StopService (UINT16 service_handle);
+
+
+/*******************************************************************************
+**
+** Function         GATTs_HandleValueIndication
+**
+** Description      This function sends a handle value indication to a client.
+**
+** Parameter        conn_id: connection identifier.
+**                  attr_handle: Attribute handle of this handle value indication.
+**                  val_len: Length of the indicated attribute value.
+**                  p_val: Pointer to the indicated attribute value data.
+**
+** Returns          GATT_SUCCESS if sucessfully sent or queued; otherwise error code.
+**
+*******************************************************************************/
+extern  tGATT_STATUS GATTS_HandleValueIndication (UINT16 conn_id,
+                                                  UINT16 attr_handle,
+                                                  UINT16 val_len, UINT8 *p_val);
+
+/*******************************************************************************
+**
+** Function         GATTS_HandleValueNotification
+**
+** Description      This function sends a handle value notification to a client.
+**
+** Parameter       conn_id: connection identifier.
+**                  attr_handle: Attribute handle of this handle value indication.
+**                  val_len: Length of the indicated attribute value.
+**                  p_val: Pointer to the indicated attribute value data.
+**
+** Returns          GATT_SUCCESS if sucessfully sent; otherwise error code.
+**
+*******************************************************************************/
+extern  tGATT_STATUS GATTS_HandleValueNotification (UINT16 conn_id, UINT16 attr_handle,
+                                                    UINT16 val_len, UINT8 *p_val);
+
+
+/*******************************************************************************
+**
+** Function         GATTS_SendRsp
+**
+** Description      This function sends the server response to client.
+**
+** Parameter        conn_id: connection identifier.
+**                  trans_id: transaction id
+**                  status: response status
+**                  p_msg: pointer to message parameters structure.
+**
+** Returns          GATT_SUCCESS if sucessfully sent; otherwise error code.
+**
+*******************************************************************************/
+extern  tGATT_STATUS GATTS_SendRsp (UINT16 conn_id,  UINT32 trans_id,
+                                    tGATT_STATUS status, tGATTS_RSP *p_msg);
+
+
+/*******************************************************************************/
+/* GATT Profile Client Functions */
+/*******************************************************************************/
+
+/*******************************************************************************
+**
+** Function         GATTC_ConfigureMTU
+**
+** Description      This function is called to configure the ATT MTU size for
+**                  a connection on an LE transport.
+**
+** Parameters       conn_id: connection identifier.
+**                  mtu    - attribute MTU size..
+**
+** Returns          GATT_SUCCESS if command started successfully.
+**
+*******************************************************************************/
+extern tGATT_STATUS GATTC_ConfigureMTU (UINT16 conn_id, UINT16  mtu);
+
+/*******************************************************************************
+**
+** Function         GATTC_Discover
+**
+** Description      This function is called to do a discovery procedure on ATT server.
+**
+** Parameters       conn_id: connection identifier.
+**                  disc_type:discovery type.
+**                  p_param: parameters of discovery requirement.
+**
+** Returns          GATT_SUCCESS if command received/sent successfully.
+**
+*******************************************************************************/
+extern tGATT_STATUS GATTC_Discover (UINT16 conn_id,
+                                    tGATT_DISC_TYPE disc_type,
+                                    tGATT_DISC_PARAM *p_param );
+/*******************************************************************************
+**
+** Function         GATTC_Read
+**
+** Description      This function is called to read the value of an attribute from
+**                  the server.
+**
+** Parameters       conn_id: connection identifier.
+**                  type    - attribute read type.
+**                  p_read  - read operation parameters.
+**
+** Returns          GATT_SUCCESS if command started successfully.
+**
+*******************************************************************************/
+extern tGATT_STATUS GATTC_Read (UINT16 conn_id, tGATT_READ_TYPE type,
+                                tGATT_READ_PARAM *p_read);
+
+/*******************************************************************************
+**
+** Function         GATTC_Write
+**
+** Description      This function is called to read the value of an attribute from
+**                  the server.
+**
+** Parameters       conn_id: connection identifier.
+**                  type    - attribute write type.
+**                  p_write  - write operation parameters.
+**
+** Returns          GATT_SUCCESS if command started successfully.
+**
+*******************************************************************************/
+extern tGATT_STATUS GATTC_Write (UINT16 conn_id, tGATT_WRITE_TYPE type,
+                                 tGATT_VALUE *p_write);
+
+
+/*******************************************************************************
+**
+** Function         GATTC_ExecuteWrite
+**
+** Description      This function is called to send an Execute write request to
+**                  the server.
+**
+** Parameters       conn_id: connection identifier.
+**                  is_execute - to execute or cancel the prepare write requet(s)
+**
+** Returns          GATT_SUCCESS if command started successfully.
+**
+*******************************************************************************/
+extern tGATT_STATUS GATTC_ExecuteWrite (UINT16 conn_id, BOOLEAN is_execute);
+
+/*******************************************************************************
+**
+** Function         GATTC_SendHandleValueConfirm
+**
+** Description      This function is called to send a handle value confirmation
+**                  as response to a handle value notification from server.
+**
+** Parameters       conn_id: connection identifier.
+**                  handle: the handle of the attribute confirmation.
+**
+** Returns          GATT_SUCCESS if command started successfully.
+**
+*******************************************************************************/
+extern tGATT_STATUS GATTC_SendHandleValueConfirm (UINT16 conn_id, UINT16 handle);
+
+
+/*******************************************************************************
+**
+** Function         GATT_SetIdleTimeout
+**
+** Description      This function (common to both client and server) sets the idle
+**                  timeout for a tansport connection
+**
+** Parameter        bd_addr:   target device bd address.
+**                  idle_tout: timeout value in seconds.
+**                  transport: trasnport option.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void GATT_SetIdleTimeout (BD_ADDR bd_addr, UINT16 idle_tout,
+                                 tGATT_TRANSPORT transport);
+
+
+/*******************************************************************************
+**
+** Function         GATT_Register
+**
+** Description      This function is called to register an  application
+**                  with GATT
+**
+** Parameter        p_app_uuid128: Application UUID
+**                  p_cb_info: callback functions.
+**
+** Returns          0 for error, otherwise the index of the client registered with GATT
+**
+*******************************************************************************/
+extern  tGATT_IF GATT_Register (tBT_UUID *p_app_uuid128, tGATT_CBACK *p_cb_info);
+
+/*******************************************************************************
+**
+** Function         GATT_Deregister
+**
+** Description      This function deregistered the application from GATT.
+**
+** Parameters       gatt_if: applicaiton interface.
+**
+** Returns          None.
+**
+*******************************************************************************/
+extern void GATT_Deregister (tGATT_IF gatt_if);
+
+/*******************************************************************************
+**
+** Function         GATT_StartIf
+**
+** Description      This function is called after registration to start receiving
+**                  callbacks for registered interface.  Function may call back
+**                  with connection status and queued notifications
+**
+** Parameter        gatt_if: applicaiton interface.
+**
+** Returns          None
+**
+*******************************************************************************/
+extern  void GATT_StartIf (tGATT_IF gatt_if);
+
+/*******************************************************************************
+**
+** Function         GATT_Connect
+**
+** Description      This function initiate a connecttion to a remote device on GATT
+**                  channel.
+**
+** Parameters       gatt_if: applicaiton interface
+**                  bd_addr: peer device address.
+**                  is_direct: is a direct conenection or a background auto connection
+**                  transport : Physical transport for GATT connection (BR/EDR or LE)
+**
+** Returns          TRUE if connection started; FALSE if connection start failure.
+**
+*******************************************************************************/
+extern BOOLEAN GATT_Connect (tGATT_IF gatt_if, BD_ADDR bd_addr,
+                             BOOLEAN is_direct, tBT_TRANSPORT transport);
+
+
+/*******************************************************************************
+**
+** Function         GATT_CancelConnect
+**
+** Description      This function terminate the connection initaition to a remote
+**                  device on GATT channel.
+**
+** Parameters       gatt_if: client interface. If 0 used as unconditionally disconnect,
+**                          typically used for direct connection cancellation.
+**                  bd_addr: peer device address.
+**                  is_direct: is a direct conenection or a background auto connection
+**
+** Returns          TRUE if connection started; FALSE if connection start failure.
+**
+*******************************************************************************/
+extern BOOLEAN GATT_CancelConnect (tGATT_IF gatt_if, BD_ADDR bd_addr,
+                                   BOOLEAN is_direct);
+
+/*******************************************************************************
+**
+** Function         GATT_Disconnect
+**
+** Description      This function disconnect the GATT channel for this registered
+**                  application.
+**
+** Parameters       conn_id: connection identifier.
+**
+** Returns          GATT_SUCCESS if disconnected.
+**
+*******************************************************************************/
+extern tGATT_STATUS GATT_Disconnect (UINT16 conn_id);
+
+
+
+/*******************************************************************************
+**
+** Function         GATT_GetConnectionInfor
+**
+** Description      This function use conn_id to find its associated BD address and applciation
+**                  interface
+**
+** Parameters        conn_id: connection id  (input)
+**                   p_gatt_if: applicaiton interface (output)
+**                   bd_addr: peer device address. (output)
+**                   transport :  physical transport of the GATT connection (BR/EDR or LE)
+**
+** Returns          TRUE the ligical link information is found for conn_id
+**
+*******************************************************************************/
+extern BOOLEAN GATT_GetConnectionInfor(UINT16 conn_id, tGATT_IF *p_gatt_if,
+                                       BD_ADDR bd_addr, tBT_TRANSPORT *p_transport);
+
+
+/*******************************************************************************
+**
+** Function         GATT_GetConnIdIfConnected
+**
+** Description      This function find the conn_id if the logical link for BD address
+**                  and applciation interface is connected
+**
+** Parameters        gatt_if: applicaiton interface (input)
+**                   bd_addr: peer device address. (input)
+**                   p_conn_id: connection id  (output)
+**                   transport :  physical transport of the GATT connection (BR/EDR or LE)
+**
+** Returns          TRUE the ligical link is connected
+**
+*******************************************************************************/
+extern BOOLEAN GATT_GetConnIdIfConnected(tGATT_IF gatt_if, BD_ADDR bd_addr,
+                                         UINT16 *p_conn_id, tBT_TRANSPORT transport);
+
+
+/*******************************************************************************
+**
+** Function         GATT_Listen
+**
+** Description      This function start or stop LE advertisement and listen for
+**                  connection.
+**
+** Parameters       gatt_if: applicaiton interface
+**                  p_bd_addr: listen for specific address connection, or NULL for
+**                             listen to all device connection.
+**                  start: is a direct conenection or a background auto connection
+**
+** Returns          TRUE if advertisement is started; FALSE if adv start failure.
+**
+*******************************************************************************/
+extern BOOLEAN GATT_Listen (tGATT_IF gatt_if, BOOLEAN start, BD_ADDR_PTR bd_addr);
+
+/*******************************************************************************
+**
+** Function         GATT_ConfigServiceChangeCCC
+**
+** Description      Configure service change indication on remote device
+**
+** Returns          None.
+**
+*******************************************************************************/
+extern void GATT_ConfigServiceChangeCCC (BD_ADDR remote_bda, BOOLEAN enable,
+                                                    tBT_TRANSPORT transport);
+#ifdef BLUETOOTH_RTK
+extern tGATT_STATUS GATT_RemoveLinkFlag (UINT16 conn_id);
+#endif
+ 
+#ifdef __cplusplus
+
+}
+#endif
+
+#endif  /* GATT_API_H */
diff --git a/rtkbt/code/bt/stack/include/gattdefs.h b/rtkbt/code/bt/stack/include/gattdefs.h
new file mode 100755
index 0000000..3edfa8b
--- /dev/null
+++ b/rtkbt/code/bt/stack/include/gattdefs.h
@@ -0,0 +1,124 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains internally used ATT definitions
+ *
+ ******************************************************************************/
+
+#ifndef  _GATTDEFS_H
+#define  _GATTDEFS_H
+
+#define GATT_ILLEGAL_UUID            0
+
+/* GATT attribute types
+*/
+#define GATT_UUID_PRI_SERVICE           0x2800
+#define GATT_UUID_SEC_SERVICE           0x2801
+#define GATT_UUID_INCLUDE_SERVICE       0x2802
+#define GATT_UUID_CHAR_DECLARE          0x2803      /*  Characteristic Declaration*/
+
+#define GATT_UUID_CHAR_EXT_PROP         0x2900      /*	Characteristic Extended Properties */
+#define GATT_UUID_CHAR_DESCRIPTION      0x2901      /*  Characteristic User Description*/
+#define GATT_UUID_CHAR_CLIENT_CONFIG    0x2902      /*  Client Characteristic Configuration */
+#define GATT_UUID_CHAR_SRVR_CONFIG      0x2903      /*  Server Characteristic Configuration */
+#define GATT_UUID_CHAR_PRESENT_FORMAT   0x2904      /*  Characteristic Presentation Format*/
+#define GATT_UUID_CHAR_AGG_FORMAT       0x2905      /*  Characteristic Aggregate Format*/
+#define GATT_UUID_CHAR_VALID_RANGE       0x2906      /*  Characteristic Valid Range */
+#define GATT_UUID_EXT_RPT_REF_DESCR     0x2907
+#define GATT_UUID_RPT_REF_DESCR         0x2908
+
+
+/* GAP Profile Attributes
+*/
+#define GATT_UUID_GAP_DEVICE_NAME        0x2A00
+#define GATT_UUID_GAP_ICON               0x2A01
+#define GATT_UUID_GAP_PREF_CONN_PARAM    0x2A04
+#define GATT_UUID_GAP_CENTRAL_ADDR_RESOL 0x2AA6
+
+/* Attribute Profile Attribute UUID */
+#define GATT_UUID_GATT_SRV_CHGD          0x2A05
+/* Attribute Protocol Test */
+
+/* Link Loss Service */
+#define GATT_UUID_ALERT_LEVEL           0x2A06      /* Alert Level */
+#define GATT_UUID_TX_POWER_LEVEL        0x2A07      /* TX power level */
+
+/* Time Profile */
+/* Current Time Service */
+#define GATT_UUID_CURRENT_TIME          0x2A2B      /* Current Time */
+#define GATT_UUID_LOCAL_TIME_INFO       0x2A0F      /* Local time info */
+#define GATT_UUID_REF_TIME_INFO         0x2A14      /* reference time information */
+
+/* NwA Profile */
+#define GATT_UUID_NW_STATUS             0x2A18      /* network availability status */
+#define GATT_UUID_NW_TRIGGER            0x2A1A      /* Network availability trigger */
+
+/* phone alert */
+#define GATT_UUID_ALERT_STATUS          0x2A3F    /* alert status */
+#define GATT_UUID_RINGER_CP             0x2A40    /* ringer control point */
+#define GATT_UUID_RINGER_SETTING        0x2A41    /* ringer setting */
+
+/* Glucose Service */
+#define GATT_UUID_GM_MEASUREMENT        0x2A18
+#define GATT_UUID_GM_CONTEXT            0x2A34
+#define GATT_UUID_GM_CONTROL_POINT      0x2A52
+#define GATT_UUID_GM_FEATURE            0x2A51
+
+/* device infor characteristic */
+#define GATT_UUID_SYSTEM_ID             0x2A23
+#define GATT_UUID_MODEL_NUMBER_STR      0x2A24
+#define GATT_UUID_SERIAL_NUMBER_STR     0x2A25
+#define GATT_UUID_FW_VERSION_STR        0x2A26
+#define GATT_UUID_HW_VERSION_STR        0x2A27
+#define GATT_UUID_SW_VERSION_STR        0x2A28
+#define GATT_UUID_MANU_NAME             0x2A29
+#define GATT_UUID_IEEE_DATA             0x2A2A
+#define GATT_UUID_PNP_ID                0x2A50
+
+/* HID characteristics */
+#define GATT_UUID_HID_INFORMATION       0x2A4A
+#define GATT_UUID_HID_REPORT_MAP        0x2A4B
+#define GATT_UUID_HID_CONTROL_POINT     0x2A4C
+#define GATT_UUID_HID_REPORT            0x2A4D
+#define GATT_UUID_HID_PROTO_MODE        0x2A4E
+#define GATT_UUID_HID_BT_KB_INPUT       0x2A22
+#define GATT_UUID_HID_BT_KB_OUTPUT      0x2A32
+#define GATT_UUID_HID_BT_MOUSE_INPUT    0x2A33
+
+/* Battery Service char */
+#define GATT_UUID_BATTERY_LEVEL         0x2A19
+
+#define GATT_UUID_SC_CONTROL_POINT      0x2A55
+#define GATT_UUID_SENSOR_LOCATION       0x2A5D
+
+/* RUNNERS SPEED AND CADENCE SERVICE      */
+#define GATT_UUID_RSC_MEASUREMENT       0x2A53
+#define GATT_UUID_RSC_FEATURE           0x2A54
+
+/* CYCLING SPEED AND CADENCE SERVICE      */
+#define GATT_UUID_CSC_MEASUREMENT       0x2A5B
+#define GATT_UUID_CSC_FEATURE           0x2A5C
+
+
+/* Scan Parameter charatceristics */
+#define GATT_UUID_SCAN_INT_WINDOW       0x2A4F
+#define GATT_UUID_SCAN_REFRESH          0x2A31
+
+#endif
diff --git a/rtkbt/code/bt/stack/include/hcidefs.h b/rtkbt/code/bt/stack/include/hcidefs.h
new file mode 100755
index 0000000..576fb8c
--- /dev/null
+++ b/rtkbt/code/bt/stack/include/hcidefs.h
@@ -0,0 +1,2613 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2014 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#ifndef HCIDEFS_H
+#define HCIDEFS_H
+
+#define HCI_PROTO_VERSION     0x01      /* Version for BT spec 1.1          */
+#define HCI_PROTO_VERSION_1_2 0x02      /* Version for BT spec 1.2          */
+#define HCI_PROTO_VERSION_2_0 0x03      /* Version for BT spec 2.0          */
+#define HCI_PROTO_VERSION_2_1 0x04      /* Version for BT spec 2.1 [Lisbon] */
+#define HCI_PROTO_VERSION_3_0 0x05      /* Version for BT spec 3.0          */
+#define HCI_PROTO_VERSION_4_0 0x06      /* Version for BT spec 4.0          */
+#define HCI_PROTO_VERSION_4_1 0x07      /* Version for BT spec 4.1          */
+#define HCI_PROTO_VERSION_4_2 0x08      /* Version for BT spec 4.2          */
+
+/*
+**  Definitions for HCI groups
+*/
+#define HCI_GRP_LINK_CONTROL_CMDS       (0x01 << 10)            /* 0x0400 */
+#define HCI_GRP_LINK_POLICY_CMDS        (0x02 << 10)            /* 0x0800 */
+#define HCI_GRP_HOST_CONT_BASEBAND_CMDS (0x03 << 10)            /* 0x0C00 */
+#define HCI_GRP_INFORMATIONAL_PARAMS    (0x04 << 10)            /* 0x1000 */
+#define HCI_GRP_STATUS_PARAMS           (0x05 << 10)            /* 0x1400 */
+#define HCI_GRP_TESTING_CMDS            (0x06 << 10)            /* 0x1800 */
+
+#define HCI_GRP_VENDOR_SPECIFIC         (0x3F << 10)            /* 0xFC00 */
+
+/* Group occupies high 6 bits of the HCI command rest is opcode itself */
+#define HCI_OGF(p)  (UINT8)((0xFC00 & (p)) >> 10)
+#define HCI_OCF(p)  ( 0x3FF & (p))
+
+/*
+**  Definitions for Link Control Commands
+*/
+/* Following opcode is used only in command complete event for flow control */
+#define HCI_COMMAND_NONE                0x0000
+
+/* Commands of HCI_GRP_LINK_CONTROL_CMDS group */
+#define HCI_INQUIRY                     (0x0001 | HCI_GRP_LINK_CONTROL_CMDS)
+#define HCI_INQUIRY_CANCEL              (0x0002 | HCI_GRP_LINK_CONTROL_CMDS)
+#define HCI_PERIODIC_INQUIRY_MODE       (0x0003 | HCI_GRP_LINK_CONTROL_CMDS)
+#define HCI_EXIT_PERIODIC_INQUIRY_MODE  (0x0004 | HCI_GRP_LINK_CONTROL_CMDS)
+#define HCI_CREATE_CONNECTION           (0x0005 | HCI_GRP_LINK_CONTROL_CMDS)
+#define HCI_DISCONNECT                  (0x0006 | HCI_GRP_LINK_CONTROL_CMDS)
+#define HCI_ADD_SCO_CONNECTION          (0x0007 | HCI_GRP_LINK_CONTROL_CMDS)
+#define HCI_CREATE_CONNECTION_CANCEL    (0x0008 | HCI_GRP_LINK_CONTROL_CMDS)
+#define HCI_ACCEPT_CONNECTION_REQUEST   (0x0009 | HCI_GRP_LINK_CONTROL_CMDS)
+#define HCI_REJECT_CONNECTION_REQUEST   (0x000A | HCI_GRP_LINK_CONTROL_CMDS)
+#define HCI_LINK_KEY_REQUEST_REPLY      (0x000B | HCI_GRP_LINK_CONTROL_CMDS)
+#define HCI_LINK_KEY_REQUEST_NEG_REPLY  (0x000C | HCI_GRP_LINK_CONTROL_CMDS)
+#define HCI_PIN_CODE_REQUEST_REPLY      (0x000D | HCI_GRP_LINK_CONTROL_CMDS)
+#define HCI_PIN_CODE_REQUEST_NEG_REPLY  (0x000E | HCI_GRP_LINK_CONTROL_CMDS)
+#define HCI_CHANGE_CONN_PACKET_TYPE     (0x000F | HCI_GRP_LINK_CONTROL_CMDS)
+#define HCI_AUTHENTICATION_REQUESTED    (0x0011 | HCI_GRP_LINK_CONTROL_CMDS)
+#define HCI_SET_CONN_ENCRYPTION         (0x0013 | HCI_GRP_LINK_CONTROL_CMDS)
+#define HCI_CHANGE_CONN_LINK_KEY        (0x0015 | HCI_GRP_LINK_CONTROL_CMDS)
+#define HCI_MASTER_LINK_KEY             (0x0017 | HCI_GRP_LINK_CONTROL_CMDS)
+#define HCI_RMT_NAME_REQUEST            (0x0019 | HCI_GRP_LINK_CONTROL_CMDS)
+#define HCI_RMT_NAME_REQUEST_CANCEL     (0x001A | HCI_GRP_LINK_CONTROL_CMDS)
+#define HCI_READ_RMT_FEATURES           (0x001B | HCI_GRP_LINK_CONTROL_CMDS)
+#define HCI_READ_RMT_EXT_FEATURES       (0x001C | HCI_GRP_LINK_CONTROL_CMDS)
+#define HCI_READ_RMT_VERSION_INFO       (0x001D | HCI_GRP_LINK_CONTROL_CMDS)
+#define HCI_READ_RMT_CLOCK_OFFSET       (0x001F | HCI_GRP_LINK_CONTROL_CMDS)
+#define HCI_READ_LMP_HANDLE             (0x0020 | HCI_GRP_LINK_CONTROL_CMDS)
+#define HCI_SETUP_ESCO_CONNECTION       (0x0028 | HCI_GRP_LINK_CONTROL_CMDS)
+#define HCI_ACCEPT_ESCO_CONNECTION      (0x0029 | HCI_GRP_LINK_CONTROL_CMDS)
+#define HCI_REJECT_ESCO_CONNECTION      (0x002A | HCI_GRP_LINK_CONTROL_CMDS)
+#define HCI_IO_CAPABILITY_REQUEST_REPLY (0x002B | HCI_GRP_LINK_CONTROL_CMDS)
+#define HCI_USER_CONF_REQUEST_REPLY     (0x002C | HCI_GRP_LINK_CONTROL_CMDS)
+#define HCI_USER_CONF_VALUE_NEG_REPLY   (0x002D | HCI_GRP_LINK_CONTROL_CMDS)
+#define HCI_USER_PASSKEY_REQ_REPLY      (0x002E | HCI_GRP_LINK_CONTROL_CMDS)
+#define HCI_USER_PASSKEY_REQ_NEG_REPLY  (0x002F | HCI_GRP_LINK_CONTROL_CMDS)
+#define HCI_REM_OOB_DATA_REQ_REPLY      (0x0030 | HCI_GRP_LINK_CONTROL_CMDS)
+#define HCI_REM_OOB_DATA_REQ_NEG_REPLY  (0x0033 | HCI_GRP_LINK_CONTROL_CMDS)
+#define HCI_IO_CAP_REQ_NEG_REPLY        (0x0034 | HCI_GRP_LINK_CONTROL_CMDS)
+
+/* AMP HCI */
+#define HCI_CREATE_PHYSICAL_LINK        (0x0035 | HCI_GRP_LINK_CONTROL_CMDS)
+#define HCI_ACCEPT_PHYSICAL_LINK        (0x0036 | HCI_GRP_LINK_CONTROL_CMDS)
+#define HCI_DISCONNECT_PHYSICAL_LINK    (0x0037 | HCI_GRP_LINK_CONTROL_CMDS)
+#define HCI_CREATE_LOGICAL_LINK         (0x0038 | HCI_GRP_LINK_CONTROL_CMDS)
+#define HCI_ACCEPT_LOGICAL_LINK         (0x0039 | HCI_GRP_LINK_CONTROL_CMDS)
+#define HCI_DISCONNECT_LOGICAL_LINK     (0x003A | HCI_GRP_LINK_CONTROL_CMDS)
+#define HCI_LOGICAL_LINK_CANCEL         (0x003B | HCI_GRP_LINK_CONTROL_CMDS)
+#define HCI_FLOW_SPEC_MODIFY            (0x003C | HCI_GRP_LINK_CONTROL_CMDS)
+
+#define HCI_ENH_SETUP_ESCO_CONNECTION   (0x003D | HCI_GRP_LINK_CONTROL_CMDS)
+#define HCI_ENH_ACCEPT_ESCO_CONNECTION  (0x003E | HCI_GRP_LINK_CONTROL_CMDS)
+
+/* ConnectionLess Broadcast */
+#define HCI_TRUNCATED_PAGE              (0x003F | HCI_GRP_LINK_CONTROL_CMDS)
+#define HCI_TRUNCATED_PAGE_CANCEL       (0x0040 | HCI_GRP_LINK_CONTROL_CMDS)
+#define HCI_SET_CLB                     (0x0041 | HCI_GRP_LINK_CONTROL_CMDS)
+#define HCI_RECEIVE_CLB                 (0x0042 | HCI_GRP_LINK_CONTROL_CMDS)
+#define HCI_START_SYNC_TRAIN            (0x0043 | HCI_GRP_LINK_CONTROL_CMDS)
+#define HCI_RECEIVE_SYNC_TRAIN          (0x0044 | HCI_GRP_LINK_CONTROL_CMDS)
+
+#define HCI_LINK_CTRL_CMDS_FIRST        HCI_INQUIRY
+#define HCI_LINK_CTRL_CMDS_LAST         HCI_RECEIVE_SYNC_TRAIN
+
+/* Commands of HCI_GRP_LINK_POLICY_CMDS */
+#define HCI_HOLD_MODE                   (0x0001 | HCI_GRP_LINK_POLICY_CMDS)
+#define HCI_SNIFF_MODE                  (0x0003 | HCI_GRP_LINK_POLICY_CMDS)
+#define HCI_EXIT_SNIFF_MODE             (0x0004 | HCI_GRP_LINK_POLICY_CMDS)
+#define HCI_PARK_MODE                   (0x0005 | HCI_GRP_LINK_POLICY_CMDS)
+#define HCI_EXIT_PARK_MODE              (0x0006 | HCI_GRP_LINK_POLICY_CMDS)
+#define HCI_QOS_SETUP                   (0x0007 | HCI_GRP_LINK_POLICY_CMDS)
+#define HCI_ROLE_DISCOVERY              (0x0009 | HCI_GRP_LINK_POLICY_CMDS)
+#define HCI_SWITCH_ROLE                 (0x000B | HCI_GRP_LINK_POLICY_CMDS)
+#define HCI_READ_POLICY_SETTINGS        (0x000C | HCI_GRP_LINK_POLICY_CMDS)
+#define HCI_WRITE_POLICY_SETTINGS       (0x000D | HCI_GRP_LINK_POLICY_CMDS)
+#define HCI_READ_DEF_POLICY_SETTINGS    (0x000E | HCI_GRP_LINK_POLICY_CMDS)
+#define HCI_WRITE_DEF_POLICY_SETTINGS   (0x000F | HCI_GRP_LINK_POLICY_CMDS)
+#define HCI_FLOW_SPECIFICATION          (0x0010 | HCI_GRP_LINK_POLICY_CMDS)
+#define HCI_SNIFF_SUB_RATE              (0x0011 | HCI_GRP_LINK_POLICY_CMDS)
+
+#define HCI_LINK_POLICY_CMDS_FIRST      HCI_HOLD_MODE
+#define HCI_LINK_POLICY_CMDS_LAST       HCI_SNIFF_SUB_RATE
+
+
+/* Commands of HCI_GRP_HOST_CONT_BASEBAND_CMDS */
+#define HCI_SET_EVENT_MASK              (0x0001 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_RESET                       (0x0003 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_SET_EVENT_FILTER            (0x0005 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_FLUSH                       (0x0008 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_READ_PIN_TYPE               (0x0009 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_WRITE_PIN_TYPE              (0x000A | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_CREATE_NEW_UNIT_KEY         (0x000B | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_GET_MWS_TRANS_LAYER_CFG     (0x000C | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_READ_STORED_LINK_KEY        (0x000D | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_WRITE_STORED_LINK_KEY       (0x0011 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_DELETE_STORED_LINK_KEY      (0x0012 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_CHANGE_LOCAL_NAME           (0x0013 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_READ_LOCAL_NAME             (0x0014 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_READ_CONN_ACCEPT_TOUT       (0x0015 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_WRITE_CONN_ACCEPT_TOUT      (0x0016 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_READ_PAGE_TOUT              (0x0017 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_WRITE_PAGE_TOUT             (0x0018 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_READ_SCAN_ENABLE            (0x0019 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_WRITE_SCAN_ENABLE           (0x001A | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_READ_PAGESCAN_CFG           (0x001B | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_WRITE_PAGESCAN_CFG          (0x001C | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_READ_INQUIRYSCAN_CFG        (0x001D | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_WRITE_INQUIRYSCAN_CFG       (0x001E | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_READ_AUTHENTICATION_ENABLE  (0x001F | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_WRITE_AUTHENTICATION_ENABLE (0x0020 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_READ_ENCRYPTION_MODE        (0x0021 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_WRITE_ENCRYPTION_MODE       (0x0022 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_READ_CLASS_OF_DEVICE        (0x0023 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_WRITE_CLASS_OF_DEVICE       (0x0024 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_READ_VOICE_SETTINGS         (0x0025 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_WRITE_VOICE_SETTINGS        (0x0026 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_READ_AUTO_FLUSH_TOUT        (0x0027 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_WRITE_AUTO_FLUSH_TOUT       (0x0028 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_READ_NUM_BCAST_REXMITS      (0x0029 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_WRITE_NUM_BCAST_REXMITS     (0x002A | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_READ_HOLD_MODE_ACTIVITY     (0x002B | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_WRITE_HOLD_MODE_ACTIVITY    (0x002C | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_READ_TRANSMIT_POWER_LEVEL   (0x002D | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_READ_SCO_FLOW_CTRL_ENABLE   (0x002E | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_WRITE_SCO_FLOW_CTRL_ENABLE  (0x002F | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_SET_HC_TO_HOST_FLOW_CTRL    (0x0031 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_HOST_BUFFER_SIZE            (0x0033 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_HOST_NUM_PACKETS_DONE       (0x0035 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_READ_LINK_SUPER_TOUT        (0x0036 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_WRITE_LINK_SUPER_TOUT       (0x0037 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_READ_NUM_SUPPORTED_IAC      (0x0038 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_READ_CURRENT_IAC_LAP        (0x0039 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_WRITE_CURRENT_IAC_LAP       (0x003A | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_READ_PAGESCAN_PERIOD_MODE   (0x003B | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_WRITE_PAGESCAN_PERIOD_MODE  (0x003C | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_READ_PAGESCAN_MODE          (0x003D | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_WRITE_PAGESCAN_MODE         (0x003E | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_SET_AFH_CHANNELS            (0x003F | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+
+#define HCI_READ_INQSCAN_TYPE           (0x0042 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_WRITE_INQSCAN_TYPE          (0x0043 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_READ_INQUIRY_MODE           (0x0044 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_WRITE_INQUIRY_MODE          (0x0045 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_READ_PAGESCAN_TYPE          (0x0046 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_WRITE_PAGESCAN_TYPE         (0x0047 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_READ_AFH_ASSESSMENT_MODE    (0x0048 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_WRITE_AFH_ASSESSMENT_MODE   (0x0049 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_READ_EXT_INQ_RESPONSE       (0x0051 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_WRITE_EXT_INQ_RESPONSE      (0x0052 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_REFRESH_ENCRYPTION_KEY      (0x0053 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_READ_SIMPLE_PAIRING_MODE    (0x0055 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_WRITE_SIMPLE_PAIRING_MODE   (0x0056 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_READ_LOCAL_OOB_DATA         (0x0057 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_READ_INQ_TX_POWER_LEVEL     (0x0058 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_WRITE_INQ_TX_POWER_LEVEL    (0x0059 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_READ_ERRONEOUS_DATA_RPT     (0x005A | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_WRITE_ERRONEOUS_DATA_RPT    (0x005B | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_ENHANCED_FLUSH              (0x005F | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_SEND_KEYPRESS_NOTIF         (0x0060 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+
+
+/* AMP HCI */
+#define HCI_READ_LOGICAL_LINK_ACCEPT_TIMEOUT  (0x0061 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_WRITE_LOGICAL_LINK_ACCEPT_TIMEOUT (0x0062 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_SET_EVENT_MASK_PAGE_2             (0x0063 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_READ_LOCATION_DATA                (0x0064 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_WRITE_LOCATION_DATA               (0x0065 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_READ_FLOW_CONTROL_MODE            (0x0066 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_WRITE_FLOW_CONTROL_MODE           (0x0067 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_READ_BE_FLUSH_TOUT                (0x0069 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_WRITE_BE_FLUSH_TOUT               (0x006A | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_SHORT_RANGE_MODE                  (0x006B | HCI_GRP_HOST_CONT_BASEBAND_CMDS) /* 802.11 only */
+#define HCI_READ_LE_HOST_SUPPORT              (0x006C | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_WRITE_LE_HOST_SUPPORT             (0x006D | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+
+
+/* MWS coexistence */
+#define HCI_SET_MWS_CHANNEL_PARAMETERS          (0x006E | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_SET_EXTERNAL_FRAME_CONFIGURATION    (0x006F | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_SET_MWS_SIGNALING                   (0x0070 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_SET_MWS_TRANSPORT_LAYER             (0x0071 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_SET_MWS_SCAN_FREQUENCY_TABLE        (0x0072 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_SET_MWS_PATTERN_CONFIGURATION       (0x0073 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+
+/* Connectionless Broadcast */
+#define HCI_SET_RESERVED_LT_ADDR                (0x0074 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_DELETE_RESERVED_LT_ADDR             (0x0075 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_WRITE_CLB_DATA                      (0x0076 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_READ_SYNC_TRAIN_PARAM               (0x0077 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_WRITE_SYNC_TRAIN_PARAM              (0x0078 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+
+#define HCI_READ_SECURE_CONNS_SUPPORT           (0x0079 | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_WRITE_SECURE_CONNS_SUPPORT          (0x007A | HCI_GRP_HOST_CONT_BASEBAND_CMDS)
+#define HCI_CONT_BASEBAND_CMDS_FIRST    HCI_SET_EVENT_MASK
+#define HCI_CONT_BASEBAND_CMDS_LAST     HCI_READ_SYNC_TRAIN_PARAM
+
+
+/* Commands of HCI_GRP_INFORMATIONAL_PARAMS group */
+#define HCI_READ_LOCAL_VERSION_INFO     (0x0001 | HCI_GRP_INFORMATIONAL_PARAMS)
+#define HCI_READ_LOCAL_SUPPORTED_CMDS   (0x0002 | HCI_GRP_INFORMATIONAL_PARAMS)
+#define HCI_READ_LOCAL_FEATURES         (0x0003 | HCI_GRP_INFORMATIONAL_PARAMS)
+#define HCI_READ_LOCAL_EXT_FEATURES     (0x0004 | HCI_GRP_INFORMATIONAL_PARAMS)
+#define HCI_READ_BUFFER_SIZE            (0x0005 | HCI_GRP_INFORMATIONAL_PARAMS)
+#define HCI_READ_COUNTRY_CODE           (0x0007 | HCI_GRP_INFORMATIONAL_PARAMS)
+#define HCI_READ_BD_ADDR                (0x0009 | HCI_GRP_INFORMATIONAL_PARAMS)
+#define HCI_READ_DATA_BLOCK_SIZE        (0x000A | HCI_GRP_INFORMATIONAL_PARAMS)
+#define HCI_READ_LOCAL_SUPPORTED_CODECS (0x000B | HCI_GRP_INFORMATIONAL_PARAMS)
+
+#define HCI_INFORMATIONAL_CMDS_FIRST    HCI_READ_LOCAL_VERSION_INFO
+#define HCI_INFORMATIONAL_CMDS_LAST     HCI_READ_LOCAL_SUPPORTED_CODECS
+
+
+/* Commands of HCI_GRP_STATUS_PARAMS group */
+#define HCI_READ_FAILED_CONTACT_COUNT   (0x0001 | HCI_GRP_STATUS_PARAMS)
+#define HCI_RESET_FAILED_CONTACT_COUNT  (0x0002 | HCI_GRP_STATUS_PARAMS)
+#define HCI_GET_LINK_QUALITY            (0x0003 | HCI_GRP_STATUS_PARAMS)
+#define HCI_READ_RSSI                   (0x0005 | HCI_GRP_STATUS_PARAMS)
+#define HCI_READ_AFH_CH_MAP             (0x0006 | HCI_GRP_STATUS_PARAMS)
+#define HCI_READ_CLOCK                  (0x0007 | HCI_GRP_STATUS_PARAMS)
+#define HCI_READ_ENCR_KEY_SIZE          (0x0008 | HCI_GRP_STATUS_PARAMS)
+
+/* AMP HCI */
+#define HCI_READ_LOCAL_AMP_INFO         (0x0009 | HCI_GRP_STATUS_PARAMS)
+#define HCI_READ_LOCAL_AMP_ASSOC        (0x000A | HCI_GRP_STATUS_PARAMS)
+#define HCI_WRITE_REMOTE_AMP_ASSOC      (0x000B | HCI_GRP_STATUS_PARAMS)
+
+#define HCI_STATUS_PARAMS_CMDS_FIRST    HCI_READ_FAILED_CONTACT_COUNT
+#define HCI_STATUS_PARAMS_CMDS_LAST     HCI_WRITE_REMOTE_AMP_ASSOC
+
+/* Commands of HCI_GRP_TESTING_CMDS group */
+#define HCI_READ_LOOPBACK_MODE          (0x0001 | HCI_GRP_TESTING_CMDS)
+#define HCI_WRITE_LOOPBACK_MODE         (0x0002 | HCI_GRP_TESTING_CMDS)
+#define HCI_ENABLE_DEV_UNDER_TEST_MODE  (0x0003 | HCI_GRP_TESTING_CMDS)
+#define HCI_WRITE_SIMP_PAIR_DEBUG_MODE  (0x0004 | HCI_GRP_TESTING_CMDS)
+
+/* AMP HCI */
+#define HCI_ENABLE_AMP_RCVR_REPORTS     (0x0007 | HCI_GRP_TESTING_CMDS)
+#define HCI_AMP_TEST_END                (0x0008 | HCI_GRP_TESTING_CMDS)
+#define HCI_AMP_TEST                    (0x0009 | HCI_GRP_TESTING_CMDS)
+
+#define HCI_TESTING_CMDS_FIRST          HCI_READ_LOOPBACK_MODE
+#define HCI_TESTING_CMDS_LAST           HCI_AMP_TEST
+
+#define HCI_VENDOR_CMDS_FIRST           0x0001
+#define HCI_VENDOR_CMDS_LAST            0xFFFF
+#define HCI_VSC_MULTI_AV_HANDLE         0x0AAA
+#define HCI_VSC_BURST_MODE_HANDLE       0x0BBB
+
+/* BLE HCI */
+#define HCI_GRP_BLE_CMDS                (0x08 << 10)
+/* Commands of BLE Controller setup and configuration */
+#define HCI_BLE_SET_EVENT_MASK          (0x0001 | HCI_GRP_BLE_CMDS)
+#define HCI_BLE_READ_BUFFER_SIZE        (0x0002 | HCI_GRP_BLE_CMDS)
+#define HCI_BLE_READ_LOCAL_SPT_FEAT     (0x0003 | HCI_GRP_BLE_CMDS)
+#define HCI_BLE_WRITE_LOCAL_SPT_FEAT    (0x0004 | HCI_GRP_BLE_CMDS)
+#define HCI_BLE_WRITE_RANDOM_ADDR       (0x0005 | HCI_GRP_BLE_CMDS)
+#define HCI_BLE_WRITE_ADV_PARAMS        (0x0006 | HCI_GRP_BLE_CMDS)
+#define HCI_BLE_READ_ADV_CHNL_TX_POWER  (0x0007 | HCI_GRP_BLE_CMDS)
+#define HCI_BLE_WRITE_ADV_DATA          (0x0008 | HCI_GRP_BLE_CMDS)
+#define HCI_BLE_WRITE_SCAN_RSP_DATA     (0x0009 | HCI_GRP_BLE_CMDS)
+#define HCI_BLE_WRITE_ADV_ENABLE        (0x000A | HCI_GRP_BLE_CMDS)
+#define HCI_BLE_WRITE_SCAN_PARAMS       (0x000B | HCI_GRP_BLE_CMDS)
+#define HCI_BLE_WRITE_SCAN_ENABLE       (0x000C | HCI_GRP_BLE_CMDS)
+#define HCI_BLE_CREATE_LL_CONN          (0x000D | HCI_GRP_BLE_CMDS)
+#define HCI_BLE_CREATE_CONN_CANCEL      (0x000E | HCI_GRP_BLE_CMDS)
+#define HCI_BLE_READ_WHITE_LIST_SIZE    (0x000F | HCI_GRP_BLE_CMDS)
+#define HCI_BLE_CLEAR_WHITE_LIST        (0x0010 | HCI_GRP_BLE_CMDS)
+#define HCI_BLE_ADD_WHITE_LIST          (0x0011 | HCI_GRP_BLE_CMDS)
+#define HCI_BLE_REMOVE_WHITE_LIST       (0x0012 | HCI_GRP_BLE_CMDS)
+#define HCI_BLE_UPD_LL_CONN_PARAMS      (0x0013 | HCI_GRP_BLE_CMDS)
+#define HCI_BLE_SET_HOST_CHNL_CLASS     (0x0014 | HCI_GRP_BLE_CMDS)
+#define HCI_BLE_READ_CHNL_MAP           (0x0015 | HCI_GRP_BLE_CMDS)
+#define HCI_BLE_READ_REMOTE_FEAT        (0x0016 | HCI_GRP_BLE_CMDS)
+#define HCI_BLE_ENCRYPT                 (0x0017 | HCI_GRP_BLE_CMDS)
+#define HCI_BLE_RAND                    (0x0018 | HCI_GRP_BLE_CMDS)
+#define HCI_BLE_START_ENC               (0x0019 | HCI_GRP_BLE_CMDS)
+#define HCI_BLE_LTK_REQ_REPLY           (0x001A | HCI_GRP_BLE_CMDS)
+#define HCI_BLE_LTK_REQ_NEG_REPLY       (0x001B | HCI_GRP_BLE_CMDS)
+#define HCI_BLE_READ_SUPPORTED_STATES   (0x001C | HCI_GRP_BLE_CMDS)
+                            /*0x001D, 0x001E and 0x001F are reserved*/
+#define HCI_BLE_RECEIVER_TEST           (0x001D | HCI_GRP_BLE_CMDS)
+#define HCI_BLE_TRANSMITTER_TEST        (0x001E | HCI_GRP_BLE_CMDS)
+/* BLE TEST COMMANDS */
+#define HCI_BLE_TEST_END                (0x001F | HCI_GRP_BLE_CMDS)
+#define HCI_BLE_RC_PARAM_REQ_REPLY      (0x0020 | HCI_GRP_BLE_CMDS)
+#define HCI_BLE_RC_PARAM_REQ_NEG_REPLY  (0x0021 | HCI_GRP_BLE_CMDS)
+
+#define HCI_BLE_SET_DATA_LENGTH             (0x0022 | HCI_GRP_BLE_CMDS)
+#define HCI_BLE_READ_DEFAULT_DATA_LENGTH    (0x0023 | HCI_GRP_BLE_CMDS)
+#define HCI_BLE_WRITE_DEFAULT_DATA_LENGTH   (0x0024 | HCI_GRP_BLE_CMDS)
+
+#define HCI_BLE_ADD_DEV_RESOLVING_LIST      (0x0027 | HCI_GRP_BLE_CMDS)
+#define HCI_BLE_RM_DEV_RESOLVING_LIST       (0x0028 | HCI_GRP_BLE_CMDS)
+#define HCI_BLE_CLEAR_RESOLVING_LIST        (0x0029 | HCI_GRP_BLE_CMDS)
+#define HCI_BLE_READ_RESOLVING_LIST_SIZE    (0x002A | HCI_GRP_BLE_CMDS)
+#define HCI_BLE_READ_RESOLVABLE_ADDR_PEER   (0x002B | HCI_GRP_BLE_CMDS)
+#define HCI_BLE_READ_RESOLVABLE_ADDR_LOCAL  (0x002C | HCI_GRP_BLE_CMDS)
+#define HCI_BLE_SET_ADDR_RESOLUTION_ENABLE  (0x002D | HCI_GRP_BLE_CMDS)
+#define HCI_BLE_SET_RAND_PRIV_ADDR_TIMOUT   (0x002E | HCI_GRP_BLE_CMDS)
+
+/* LE Get Vendor Capabilities Command OCF */
+#define HCI_BLE_VENDOR_CAP_OCF    (0x0153 | HCI_GRP_VENDOR_SPECIFIC)
+
+/* Multi adv OCF */
+#define HCI_BLE_MULTI_ADV_OCF     (0x0154 | HCI_GRP_VENDOR_SPECIFIC)
+
+/* Batch scan OCF */
+#define HCI_BLE_BATCH_SCAN_OCF    (0x0156 | HCI_GRP_VENDOR_SPECIFIC)
+
+/* ADV filter OCF */
+#define HCI_BLE_ADV_FILTER_OCF    (0x0157 | HCI_GRP_VENDOR_SPECIFIC)
+
+/* Tracking OCF */
+#define HCI_BLE_TRACK_ADV_OCF     (0x0158 | HCI_GRP_VENDOR_SPECIFIC)
+
+/* Energy info OCF */
+#define HCI_BLE_ENERGY_INFO_OCF   (0x0159 | HCI_GRP_VENDOR_SPECIFIC)
+
+/* Extended BLE Scan parameters OCF */
+#define HCI_BLE_EXTENDED_SCAN_PARAMS_OCF  (0x015A | HCI_GRP_VENDOR_SPECIFIC)
+
+/* Controller debug info OCF */
+#define HCI_CONTROLLER_DEBUG_INFO_OCF     (0x015B | HCI_GRP_VENDOR_SPECIFIC)
+
+/* subcode for multi adv feature */
+#define BTM_BLE_MULTI_ADV_SET_PARAM                     0x01
+#define BTM_BLE_MULTI_ADV_WRITE_ADV_DATA                0x02
+#define BTM_BLE_MULTI_ADV_WRITE_SCAN_RSP_DATA           0x03
+#define BTM_BLE_MULTI_ADV_SET_RANDOM_ADDR               0x04
+#define BTM_BLE_MULTI_ADV_ENB                           0x05
+
+/* multi adv VSE subcode */
+#define HCI_VSE_SUBCODE_BLE_MULTI_ADV_ST_CHG       0x55 /* multi adv instance state change */
+
+/* subcode for batch scan feature */
+#define BTM_BLE_BATCH_SCAN_ENB_DISAB_CUST_FEATURE      0x01
+#define BTM_BLE_BATCH_SCAN_SET_STORAGE_PARAM           0x02
+#define BTM_BLE_BATCH_SCAN_SET_PARAMS                  0x03
+#define BTM_BLE_BATCH_SCAN_READ_RESULTS                0x04
+
+/* batch scan VSE subcode */
+#define HCI_VSE_SUBCODE_BLE_THRESHOLD_SUB_EVT      0x54 /* Threshold event */
+
+/* tracking sub event */
+#define HCI_VSE_SUBCODE_BLE_TRACKING_SUB_EVT       0x56 /* Tracking event */
+
+/* LE supported states definition */
+#define HCI_LE_ADV_STATE          0x00000001
+#define HCI_LE_SCAN_STATE         0x00000002
+#define HCI_LE_INIT_STATE         0x00000004
+#define HCI_LE_CONN_SL_STATE      0x00000008
+#define HCI_LE_ADV_SCAN_STATE     0x00000010
+#define HCI_LE_ADV_INIT_STATE     0x00000020
+#define HCI_LE_ADV_MA_STATE       0x00000040
+#define HCI_LE_ADV_SL_STATE       0x00000080
+#define HCI_LE_SCAN_INIT_STATE    0x00000100
+#define HCI_LE_SCAN_MA_STATE      0x00000200
+#define HCI_LE_SCAN_SL_STATE      0x00000400
+#define HCI_LE_INIT_MA_STATE      0x00000800
+
+/* LE Supported States */
+/* Non Connectable Adv state is supported. 0x0000000000000001 */
+#define HCI_SUPP_LE_STATES_NON_CONN_ADV_MASK          0x01
+#define HCI_SUPP_LE_STATES_NON_CONN_ADV_OFF           0
+#define HCI_LE_STATES_NON_CONN_ADV_SUPPORTED(x)      ((x)[HCI_SUPP_LE_STATES_NON_CONN_ADV_OFF] & HCI_SUPP_LE_STATES_NON_CONN_ADV_MASK)
+
+/*Scanneable Connectable Adv state  is supported. 0x0000000000000002 */
+#define HCI_SUPP_LE_STATES_SCAN_ADV_MASK          0x02
+#define HCI_SUPP_LE_STATESSCAN_ADV_OFF           0
+#define HCI_LE_STATES_SCAN_ADV_SUPPORTED(x)      ((x)[HCI_SUPP_LE_STATESSCAN_ADV_OFF] & HCI_SUPP_LE_STATES_SCAN_ADV_MASK)
+
+/* Connectable Adv state is supported. 0x0000000000000004 */
+#define HCI_SUPP_LE_STATES_CONN_ADV_MASK          0x04
+#define HCI_SUPP_LE_STATES_CONN_ADV_OFF           0
+#define HCI_LE_STATES_CONN_ADV_SUPPORTED(x)      ((x)[HCI_SUPP_LE_STATES_CONN_ADV_OFF] & HCI_SUPP_LE_STATES_CONN_ADV_MASK)
+
+/* Hi duty Cycle Directed Adv state is supported. 0x0000000000000008 */
+#define HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_MASK          0x08
+#define HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_OFF           0
+#define HCI_LE_STATES_HI_DUTY_DIR_ADV_SUPPORTED(x)      ((x)[HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_OFF] & HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_MASK)
+
+/* Passive Scan state is supported. 0x0000000000000010 */
+#define HCI_SUPP_LE_STATES_PASS_SCAN_MASK          0x10
+#define HCI_SUPP_LE_STATES_PASS_SCAN_OFF           0
+#define HCI_LE_STATES_PASS_SCAN_SUPPORTED(x)      ((x)[HCI_SUPP_LE_STATES_PASS_SCAN_OFF] & HCI_SUPP_LE_STATES_PASS_SCAN_MASK)
+
+/* Active Scan state is supported. 0x0000000000000020 */
+#define HCI_SUPP_LE_STATES_ACTIVE_SCAN_MASK          0x20
+#define HCI_SUPP_LE_STATES_ACTIVE_SCAN_OFF           0
+#define HCI_LE_STATES_ACTIVE_SCAN_SUPPORTED(x)      ((x)[HCI_SUPP_LE_STATES_ACTIVE_SCAN_OFF] & HCI_SUPP_LE_STATES_ACTIVE_SCAN_MASK)
+
+/* Initiating state is supported. 0x0000000000000040 (or connection state in master role is also supported) */
+#define HCI_SUPP_LE_STATES_INIT_MASK          0x40
+#define HCI_SUPP_LE_STATES_INIT_OFF           0
+#define HCI_LE_STATES_INIT_SUPPORTED(x)      ((x)[HCI_SUPP_LE_STATES_INIT_OFF] & HCI_SUPP_LE_STATES_INIT_MASK)
+
+/*connection state in slave  role is also supported. 0x0000000000000080 */
+#define HCI_SUPP_LE_STATES_SLAVE_MASK          0x80
+#define HCI_SUPP_LE_STATES_SLAVE_OFF           0
+#define HCI_LE_STATES_SLAVE_SUPPORTED(x)      ((x)[HCI_SUPP_LE_STATES_SLAVE_OFF] & HCI_SUPP_LE_STATES_SLAVE_MASK)
+
+/* Non Connectable Adv state and Passive Scanning State combination is supported. 0x0000000000000100 */
+#define HCI_SUPP_LE_STATES_NON_CONN_ADV_PASS_SCAN_MASK          0x01
+#define HCI_SUPP_LE_STATES_NON_CONN_ADV_PASS_SCAN_OFF           1
+#define HCI_LE_STATES_NON_CONN_ADV_PASS_SCAN_SUPPORTED(x)      ((x)[HCI_SUPP_LE_STATES_NON_CONN_ADV_PASS_SCAN_OFF] & HCI_SUPP_LE_STATES_NON_CONN_ADV_PASS_SCAN_MASK)
+
+/*Scannable Adv state and Passive Scanning State combination is supported. 0x0000000000000200 */
+#define HCI_SUPP_LE_STATES_SCAN_ADV_PASS_SCAN_MASK          0x02
+#define HCI_SUPP_LE_STATES_SCAN_ADV_PASS_SCAN_OFF           1
+#define HCI_LE_STATES_SCAN_ADV_PASS_SCAN_SUPPORTED(x)      ((x)[HCI_SUPP_LE_STATES_SCAN_ADV_PASS_SCAN_OFF] & HCI_SUPP_LE_STATES_SCAN_ADV_PASS_SCAN_MASK)
+
+/*Connectable Adv state and Passive Scanning State combination is supported. 0x0000000000000400 */
+#define HCI_SUPP_LE_STATES_CONN_ADV_PASS_SCAN_MASK          0x04
+#define HCI_SUPP_LE_STATES_CONN_ADV_PASS_SCAN_OFF           1
+#define HCI_LE_STATES_CONN_ADV_PASS_SCAN_SUPPORTED(x)      ((x)[HCI_SUPP_LE_STATES_CONN_ADV_PASS_SCAN_OFF] & HCI_SUPP_LE_STATES_CONN_ADV_PASS_SCAN_MASK)
+
+/*High Duty Cycl Directed ADv and Passive Scanning State combination is supported. 0x0000000000000800 */
+#define HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_PASS_SCAN_MASK          0x08
+#define HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_PASS_SCAN_OFF           1
+#define HCI_LE_STATES_HI_DUTY_DIR_ADV_PASS_SCAN_SUPPORTED(x)      ((x)[HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_PASS_SCAN_MASK] & HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_PASS_SCAN_OFF)
+
+/*Non Connectable Adv state and Passive Scanning State combination is supported. 0x0000000000001000 */
+#define HCI_SUPP_LE_STATES_NON_CONN_ADV_ACTIVE_SCAN_MASK          0x10
+#define HCI_SUPP_LE_STATES_NON_CONN_ADV_ACTIVE_SCAN_OFF           1
+#define HCI_LE_STATES_NON_CONN_ADV_ACTIVE_SCAN_SUPPORTED(x)      ((x)[HCI_SUPP_LE_STATES_NON_CONN_ADV_ACTIVE_SCAN_OFF] & HCI_SUPP_LE_STATES_NON_CONN_ADV_ACTIVE_SCAN_MASK)
+
+/*Scannable Adv state and Active Scanning State combination is supported. 0x0000000000002000 */
+#define HCI_SUPP_LE_STATES_SCAN_ADV_ACTIVE_SCAN_MASK          0x20
+#define HCI_SUPP_LE_STATES_SCAN_ADV_ACTIVE_SCAN_OFF           1
+#define HCI_LE_STATES_SCAN_ADV_ACTIVE_SCAN_SUPPORTED(x)      ((x)[HCI_SUPP_LE_STATES_SCAN_ADV_ACTIVE_SCAN_OFF] & HCI_SUPP_LE_STATES_SCAN_ADV_ACTIVE_SCAN_MASK)
+
+/*Connectable Adv state and Active Scanning State combination is supported. 0x0000000000004000 */
+#define HCI_SUPP_LE_STATES_CONN_ADV_ACTIVE_SCAN_MASK          0x40
+#define HCI_SUPP_LE_STATES_CONN_ADV_ACTIVE_SCAN_OFF           1
+#define HCI_LE_STATES_CONN_ADV_ACTIVE_SCAN_SUPPORTED(x)      ((x)[HCI_SUPP_LE_STATES_CONN_ADV_ACTIVE_SCAN_OFF] & HCI_SUPP_LE_STATES_CONN_ADV_ACTIVE_SCAN_MASK)
+
+/*High Duty Cycl Directed ADv and ACtive Scanning State combination is supported. 0x0000000000008000 */
+#define HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_ACTIVE_SCAN_MASK          0x80
+#define HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_ACTIVE_SCAN_OFF           1
+#define HCI_LE_STATES_HI_DUTY_DIR_ADV_ACTIVE_SCAN_SUPPORTED(x)      ((x)[HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_ACTIVE_SCAN_MASK] & HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_ACTIVE_SCAN_OFF)
+
+/*Non-Connectable Adv state and Initiating State combination is supported. 0x0000000000010000 */
+#define HCI_SUPP_LE_STATES_NON_CONN_INIT_MASK          0x01
+#define HCI_SUPP_LE_STATES_NON_CONN_INIT_OFF           2
+#define HCI_LE_STATES_NON_CONN_INIT_SUPPORTED(x)      ((x)[HCI_SUPP_LE_STATES_NON_CONN_INIT_OFF] & HCI_SUPP_LE_STATES_NON_CONN_INIT_MASK)
+
+/* Scannable Adv state and Initiating State combination is supported. 0x0000000000020000 */
+#define HCI_SUPP_LE_STATES_SCAN_ADV_INIT_MASK          0x02
+#define HCI_SUPP_LE_STATES_SCAN_ADV_INIT_OFF           2
+#define HCI_LE_STATES_SCAN_ADV_INIT_SUPPORTED(x)      ((x)[HCI_SUPP_LE_STATES_SCAN_ADV_INIT_OFF] & HCI_SUPP_LE_STATES_SCAN_ADV_INIT_MASK)
+
+/* Non-Connectable Adv state and Master Role combination is supported. 0x0000000000040000 */
+#define HCI_SUPP_LE_STATES_NON_CONN_ADV_MASTER_MASK          0x04
+#define HCI_SUPP_LE_STATES_NON_CONN_ADV_MASTER_OFF           2
+#define HCI_LE_STATES_NON_CONN_ADV_MASTER_SUPPORTED(x)      ((x)[HCI_SUPP_LE_STATES_NON_CONN_ADV_MASTER_OFF] & HCI_SUPP_LE_STATES_NON_CONN_ADV_MASTER_MASK)
+
+/*Scannable Adv state and Master Role combination is supported. 0x0000000000040000 */
+#define HCI_SUPP_LE_STATES_SCAN_ADV_MASTER_MASK          0x08
+#define HCI_SUPP_LE_STATES_SCAN_ADV_MASTER_OFF           2
+#define HCI_LE_STATES_SCAN_ADV_MASTER_SUPPORTED(x)      ((x)[HCI_SUPP_LE_STATES_SCAN_ADV_MASTER_OFF] & HCI_SUPP_LE_STATES_SCAN_ADV_MASTER_MASK)
+
+/* Non-Connectable Adv and Slave Role combination is supported. 0x000000000100000 */
+#define HCI_SUPP_LE_STATES_NON_CONN_ADV_SLAVE_MASK          0x10
+#define HCI_SUPP_LE_STATES_NON_CONN_ADV_SLAVE_OFF           2
+#define HCI_LE_STATES_NON_CONN_ADV_SLAVE_SUPPORTED(x)      ((x)[HCI_SUPP_LE_STATES_NON_CONN_ADV_SLAVE_OFF] & HCI_SUPP_LE_STATES_NON_CONN_ADV_SLAVE_MASK)
+
+/*Scannable Adv and Slave Role combination is supported. 0x000000000200000 */
+#define HCI_SUPP_LE_STATES_SCAN_ADV_SLAVE_MASK          0x20
+#define HCI_SUPP_LE_STATES_SCAN_ADV_SLAVE_OFF           2
+#define HCI_LE_STATES_SCAN_ADV_SLAVE_SUPPORTED(x)      ((x)[HCI_SUPP_LE_STATES_SCAN_ADV_SLAVE_OFF] & HCI_SUPP_LE_STATES_SCAN_ADV_SLAVE_MASK)
+
+/*Passive Scan and Initiating State combination is supported. 0x000000000400000 */
+#define HCI_SUPP_LE_STATES_PASS_SCAN_INIT_MASK          0x40
+#define HCI_SUPP_LE_STATES_PASS_SCAN_INIT_OFF           2
+#define HCI_LE_STATES_PASS_SCAN_INIT_SUPPORTED(x)      ((x)[HCI_SUPP_LE_STATES_PASS_SCAN_INIT_OFF] & HCI_SUPP_LE_STATES_PASS_SCAN_INIT_MASK)
+
+/*Active Scan and Initiating State combination is supported. 0x000000000800000 */
+#define HCI_SUPP_LE_STATES_ACTIVE_SCAN_INIT_MASK          0x80
+#define HCI_SUPP_LE_STATES_ACTIVE_SCAN_INIT_OFF           2
+#define HCI_LE_STATES_ACTIVE_SCAN_INIT_SUPPORTED(x)      ((x)[HCI_SUPP_LE_STATES_ACTIVE_SCAN_INIT_OFF] & HCI_SUPP_LE_STATES_ACTIVE_SCAN_INIT_MASK)
+
+/*Passive Scan and Master Role combination is supported. 0x000000001000000 */
+#define HCI_SUPP_LE_STATES_PASS_SCAN_MASTER_MASK          0x01
+#define HCI_SUPP_LE_STATES_PASS_SCAN_MASTER_OFF           3
+#define HCI_LE_STATES_PASS_SCAN_MASTER_SUPPORTED(x)      ((x)[HCI_SUPP_LE_STATES_PASS_SCAN_MASTER_OFF] & HCI_SUPP_LE_STATES_PASS_SCAN_MASTER_MASK)
+
+/*Active Scan and Master Role combination is supported. 0x000000002000000 */
+#define HCI_SUPP_LE_STATES_ACTIVE_SCAN_MASTER_MASK          0x02
+#define HCI_SUPP_LE_STATES_ACTIVE_SCAN_MASTER_OFF           3
+#define HCI_LE_STATES_ACTIVE_SCAN_MASTER_SUPPORTED(x)      ((x)[HCI_SUPP_LE_STATES_ACTIVE_SCAN_MASTER_OFF] & HCI_SUPP_LE_STATES_ACTIVE_SCAN_MASTER_MASK)
+
+/*Passive Scan and Slave Role combination is supported. 0x000000004000000 */
+#define HCI_SUPP_LE_STATES_PASS_SCAN_SLAVE_MASK          0x04
+#define HCI_SUPP_LE_STATES_PASS_SCAN_SLAVE_OFF           3
+#define HCI_LE_STATES_PASS_SCAN_SLAVE_SUPPORTED(x)      ((x)[HCI_SUPP_LE_STATES_PASS_SCAN_SLAVE_OFF] & HCI_SUPP_LE_STATES_PASS_SCAN_SLAVE_MASK)
+
+/*Active Scan and Slave Role combination is supported. 0x000000008000000 */
+#define HCI_SUPP_LE_STATES_ACTIVE_SCAN_SLAVE_MASK          0x08
+#define HCI_SUPP_LE_STATES_ACTIVE_SCAN_SLAVE_OFF           3
+#define HCI_LE_STATES_ACTIVE_SCAN_SLAVE_SUPPORTED(x)      ((x)[HCI_SUPP_LE_STATES_ACTIVE_SCAN_SLAVE_OFF] & HCI_SUPP_LE_STATES_ACTIVE_SCAN_SLAVE_MASK)
+
+/*Link Layer Topology Added States Combo */
+/*Initiating State and Master Role combination supported.
+  Master Role and Master Role combination is also supported. 0x0000000010000000 */
+#define HCI_SUPP_LE_STATES_INIT_MASTER_MASK          0x10
+#define HCI_SUPP_LE_STATES_INIT_MASTER_OFF           3
+#define HCI_LE_STATES_INIT_MASTER_SUPPORTED(x)      ((x)[HCI_SUPP_LE_STATES_INIT_MASTER_OFF] & HCI_SUPP_LE_STATES_INIT_MASTER_MASK)
+
+/*Low Duty Cycle Directed Advertising State . 0x0000000020000000 */
+#define HCI_SUPP_LE_STATES_LO_DUTY_DIR_ADV_MASK          0x20
+#define HCI_SUPP_LE_STATES_LO_DUTY_DIR_ADV_OFF           3
+#define HCI_LE_STATES_LOW_DUTY_DIR_ADV_SUPPORTED(x)      ((x)[HCI_SUPP_LE_STATES_LOW_DUTY_DIR_ADV_OFF] & HCI_SUPP_LE_STATES_LOW_DUTY_DIR_ADV_MASK)
+
+/*Low Duty Cycle Directed Advertising State and Passive scan combination. 0x0000000040000000 */
+#define HCI_SUPP_LE_STATES_LO_DUTY_DIR_ADV_PASS_SCAN_MASK          0x40
+#define HCI_SUPP_LE_STATES_LO_DUTY_DIR_ADV_PASS_SCAN_OFF           3
+#define HCI_LE_STATES_LO_DUTY_DIR_ADV_PASS_SCAN_SUPPORTED(x)      ((x)[HCI_SUPP_LE_STATES_LO_DUTY_DIR_ADV_PASS_SCAN_OFF] & HCI_SUPP_LE_STATES_LO_DUTY_DIR_ADV_PASS_SCAN_MASK)
+
+/*Low Duty Cycle Directed Advertising State and Active scan combination . 0x0000000080000000 */
+#define HCI_SUPP_LE_STATES_LO_DUTY_DIR_ADV_ACTIVE_SCAN_MASK          0x80
+#define HCI_SUPP_LE_STATES_LO_DUTY_DIR_ADV_ACTIVE_SCAN_OFF           3
+#define HCI_LE_STATES_LO_DUTY_DIR_ADV_ACTIVE_SCAN_SUPPORTED(x)      ((x)[HCI_SUPP_LE_STATES_LO_DUTY_DIR_ADV_ACTIVE_SCAN_OFF] & HCI_SUPP_LE_STATES_LO_DUTY_DIR_ADV_ACTIVE_SCAN_MASK)
+
+/* Connectable Advertising State and Initiating State combination supported. 0x0000000100000000 */
+#define HCI_SUPP_LE_STATES_CONN_ADV_INIT_MASK          0x01
+#define HCI_SUPP_LE_STATES_CONN_ADV_INIT_OFF           4
+#define HCI_LE_STATES_CONN_ADV_INIT_SUPPORTED(x)      ((x)[HCI_SUPP_LE_STATES_CONN_ADV_INIT_OFF] & HCI_SUPP_LE_STATES_CONN_ADV_INIT_MASK)
+
+/* High Duty Cycle Directed Advertising State and Initiating State combination supported. */
+#define HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_INIT_MASK          0x02
+#define HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_INIT_OFF           4
+#define HCI_LE_STATES_HI_DUTY_DIR_ADV_INIT_SUPPORTED(x)      ((x)[HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_INIT_OFF] & HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_INIT_MASK)
+
+/* Low Duty Cycle Directed Advertising State and Initiating State combination supported.*/
+#define HCI_SUPP_LE_STATES_LO_DUTY_DIR_ADV_INIT_MASK          0x04
+#define HCI_SUPP_LE_STATES_LO_DUTY_DIR_ADV_INIT_OFF           4
+#define HCI_LE_STATES_LO_DUTY_DIR_ADV_INIT_SUPPORTED(x)      ((x)[HCI_SUPP_LE_STATES_LO_DUTY_DIR_ADV_INIT_OFF] & HCI_SUPP_LE_STATES_LO_DUTY_DIR_ADV_INIT_MASK)
+
+/* Connectable Advertising State and Master Role combination supported.*/
+#define HCI_SUPP_LE_STATES_CONN_ADV_MASTER_MASK          0x08
+#define HCI_SUPP_LE_STATES_CONN_ADV_MASTER_OFF           4
+#define HCI_LE_STATES_CONN_ADV_MASTER_SUPPORTED(x)      ((x)[HCI_SUPP_LE_STATES_CONN_ADV_MASTER_OFF] & HCI_SUPP_LE_STATES_CONN_ADV_MASTER_MASK)
+
+/* High Duty Cycle Directed Advertising State and Master Role combination supported.*/
+#define HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_MASTER_MASK          0x10
+#define HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_MASTER_OFF           4
+#define HCI_LE_STATES_HI_DUTY_DIR_ADV_MASTER_SUPPORTED(x)      ((x)[HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_MASTER_OFF] & HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_MASTER_MASK)
+
+/* Low Duty Cycle Directed Advertising State and Master Role combination supported.*/
+#define HCI_SUPP_LE_STATES_LO_DUTY_DIR_ADV_MASTER_MASK          0x20
+#define HCI_SUPP_LE_STATES_LO_DUTY_DIR_ADV_MASTER_OFF           4
+#define HCI_LE_STATES_LO_DUTY_DIR_ADV_MASTER_SUPPORTED(x)      ((x)[HCI_SUPP_LE_STATES_LO_DUTY_DIR_ADV_MASTER_OFF] & HCI_SUPP_LE_STATES_LO_DUTY_DIR_ADV_MASTER_MASK)
+
+/* Connectable Advertising State and Slave Role combination supported. */
+#define HCI_SUPP_LE_STATES_CONN_ADV_SLAVE_MASK          0x40
+#define HCI_SUPP_LE_STATES_CONN_ADV_SLAVE_OFF           4
+#define HCI_LE_STATES_CONN_ADV_SLAVE_SUPPORTED(x)      ((x)[HCI_SUPP_LE_STATES_CONN_ADV_SLAVE_OFF] & HCI_SUPP_LE_STATES_CONN_ADV_SLAVE_MASK)
+
+/* High Duty Cycle Directed Advertising State and slave Role combination supported.*/
+#define HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_SLAVE_MASK          0x80
+#define HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_SLAVE_OFF           4
+#define HCI_LE_STATES_HI_DUTY_DIR_ADV_SLAVE_SUPPORTED(x)      ((x)[HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_SLAVE_OFF] & HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_SLAVE_MASK)
+
+/* Low Duty Cycle Directed Advertising State and slave Role combination supported.*/
+#define HCI_SUPP_LE_STATES_LO_DUTY_DIR_ADV_SLAVE_MASK          0x01
+#define HCI_SUPP_LE_STATES_LO_DUTY_DIR_ADV_SLAVE_OFF           5
+#define HCI_LE_STATES_LO_DUTY_DIR_ADV_SLAVE_SUPPORTED(x)      ((x)[HCI_SUPP_LE_STATES_LO_DUTY_DIR_ADV_SLAVE_OFF] & HCI_SUPP_LE_STATES_LO_DUTY_DIR_ADV_SLAVE_MASK)
+
+/* Initiating State and Slave Role combination supported.
+   Master Role and Slave Role combination also supported.
+ */
+#define HCI_SUPP_LE_STATES_INIT_MASTER_SLAVE_MASK          0x02
+#define HCI_SUPP_LE_STATES_INIT_MASTER_SLAVE_OFF           5
+#define HCI_LE_STATES_INIT_MASTER_SLAVE_SUPPORTED(x)      ((x)[HCI_SUPP_LE_STATES_INIT_MASTER_SLAVE_OFF] & HCI_SUPP_LE_STATES_INIT_MASTER_SLAVE_MASK)
+
+/*
+**  Definitions for HCI Events
+*/
+#define HCI_INQUIRY_COMP_EVT                0x01
+#define HCI_INQUIRY_RESULT_EVT              0x02
+#define HCI_CONNECTION_COMP_EVT             0x03
+#define HCI_CONNECTION_REQUEST_EVT          0x04
+#define HCI_DISCONNECTION_COMP_EVT          0x05
+#define HCI_AUTHENTICATION_COMP_EVT         0x06
+#define HCI_RMT_NAME_REQUEST_COMP_EVT       0x07
+#define HCI_ENCRYPTION_CHANGE_EVT           0x08
+#define HCI_CHANGE_CONN_LINK_KEY_EVT        0x09
+#define HCI_MASTER_LINK_KEY_COMP_EVT        0x0A
+#define HCI_READ_RMT_FEATURES_COMP_EVT      0x0B
+#define HCI_READ_RMT_VERSION_COMP_EVT       0x0C
+#define HCI_QOS_SETUP_COMP_EVT              0x0D
+#define HCI_COMMAND_COMPLETE_EVT            0x0E
+#define HCI_COMMAND_STATUS_EVT              0x0F
+#define HCI_HARDWARE_ERROR_EVT              0x10
+#define HCI_FLUSH_OCCURED_EVT               0x11
+#define HCI_ROLE_CHANGE_EVT                 0x12
+#define HCI_NUM_COMPL_DATA_PKTS_EVT         0x13
+#define HCI_MODE_CHANGE_EVT                 0x14
+#define HCI_RETURN_LINK_KEYS_EVT            0x15
+#define HCI_PIN_CODE_REQUEST_EVT            0x16
+#define HCI_LINK_KEY_REQUEST_EVT            0x17
+#define HCI_LINK_KEY_NOTIFICATION_EVT       0x18
+#define HCI_LOOPBACK_COMMAND_EVT            0x19
+#define HCI_DATA_BUF_OVERFLOW_EVT           0x1A
+#define HCI_MAX_SLOTS_CHANGED_EVT           0x1B
+#define HCI_READ_CLOCK_OFF_COMP_EVT         0x1C
+#define HCI_CONN_PKT_TYPE_CHANGE_EVT        0x1D
+#define HCI_QOS_VIOLATION_EVT               0x1E
+#define HCI_PAGE_SCAN_MODE_CHANGE_EVT       0x1F
+#define HCI_PAGE_SCAN_REP_MODE_CHNG_EVT     0x20
+#define HCI_FLOW_SPECIFICATION_COMP_EVT     0x21
+#define HCI_INQUIRY_RSSI_RESULT_EVT         0x22
+#define HCI_READ_RMT_EXT_FEATURES_COMP_EVT  0x23
+#define HCI_ESCO_CONNECTION_COMP_EVT        0x2C
+#define HCI_ESCO_CONNECTION_CHANGED_EVT     0x2D
+#define HCI_SNIFF_SUB_RATE_EVT              0x2E
+#define HCI_EXTENDED_INQUIRY_RESULT_EVT     0x2F
+#define HCI_ENCRYPTION_KEY_REFRESH_COMP_EVT 0x30
+#define HCI_IO_CAPABILITY_REQUEST_EVT       0x31
+#define HCI_IO_CAPABILITY_RESPONSE_EVT      0x32
+#define HCI_USER_CONFIRMATION_REQUEST_EVT   0x33
+#define HCI_USER_PASSKEY_REQUEST_EVT        0x34
+#define HCI_REMOTE_OOB_DATA_REQUEST_EVT     0x35
+#define HCI_SIMPLE_PAIRING_COMPLETE_EVT     0x36
+#define HCI_LINK_SUPER_TOUT_CHANGED_EVT     0x38
+#define HCI_ENHANCED_FLUSH_COMPLETE_EVT     0x39
+#define HCI_USER_PASSKEY_NOTIFY_EVT         0x3B
+#define HCI_KEYPRESS_NOTIFY_EVT             0x3C
+#define HCI_RMT_HOST_SUP_FEAT_NOTIFY_EVT    0x3D
+
+/*#define HCI_GENERIC_AMP_LINK_KEY_NOTIF_EVT  0x3E Removed from spec */
+#define HCI_PHYSICAL_LINK_COMP_EVT          0x40
+#define HCI_CHANNEL_SELECTED_EVT            0x41
+#define HCI_DISC_PHYSICAL_LINK_COMP_EVT     0x42
+#define HCI_PHY_LINK_LOSS_EARLY_WARNING_EVT 0x43
+#define HCI_PHY_LINK_RECOVERY_EVT           0x44
+#define HCI_LOGICAL_LINK_COMP_EVT           0x45
+#define HCI_DISC_LOGICAL_LINK_COMP_EVT      0x46
+#define HCI_FLOW_SPEC_MODIFY_COMP_EVT       0x47
+#define HCI_NUM_COMPL_DATA_BLOCKS_EVT       0x48
+#define HCI_SHORT_RANGE_MODE_COMPLETE_EVT   0x4C
+#define HCI_AMP_STATUS_CHANGE_EVT           0x4D
+#define HCI_SET_TRIGGERED_CLOCK_CAPTURE_EVT 0x4E
+#ifdef BLUETOOTH_RTK_API
+#define HCI_SL_PAGE_RESPONSE_TO_EVT         0x54
+#define HCI_CONNLESS_SL_BC_TO_EVT           0x52
+#endif
+
+/* ULP HCI Event */
+#define HCI_BLE_EVENT                       0x3e
+/* ULP Event sub code */
+#define HCI_BLE_CONN_COMPLETE_EVT           0x01
+#define HCI_BLE_ADV_PKT_RPT_EVT             0x02
+#define HCI_BLE_LL_CONN_PARAM_UPD_EVT       0x03
+#define HCI_BLE_READ_REMOTE_FEAT_CMPL_EVT   0x04
+#define HCI_BLE_LTK_REQ_EVT                 0x05
+#define HCI_BLE_RC_PARAM_REQ_EVT            0x06
+#define HCI_BLE_DATA_LENGTH_CHANGE_EVT      0x07
+#define HCI_BLE_ENHANCED_CONN_COMPLETE_EVT  0x0a
+#define HCI_BLE_DIRECT_ADV_EVT              0x0b
+
+/* Definitions for LE Channel Map */
+#define HCI_BLE_CHNL_MAP_SIZE               5
+
+#define HCI_VENDOR_SPECIFIC_EVT         0xFF  /* Vendor specific events */
+#define HCI_NAP_TRACE_EVT               0xFF  /* was define 0xFE, 0xFD, change to 0xFF
+                                                 because conflict w/ TCI_EVT and per
+                                                 specification compliant */
+
+/*
+**  Defentions for HCI Error Codes that are past in the events
+*/
+#define HCI_SUCCESS                                     0x00
+#define HCI_PENDING                                     0x00
+#define HCI_ERR_ILLEGAL_COMMAND                         0x01
+#define HCI_ERR_NO_CONNECTION                           0x02
+#define HCI_ERR_HW_FAILURE                              0x03
+#define HCI_ERR_PAGE_TIMEOUT                            0x04
+#define HCI_ERR_AUTH_FAILURE                            0x05
+#define HCI_ERR_KEY_MISSING                             0x06
+#define HCI_ERR_MEMORY_FULL                             0x07
+#define HCI_ERR_CONNECTION_TOUT                         0x08
+#define HCI_ERR_MAX_NUM_OF_CONNECTIONS                  0x09
+#define HCI_ERR_MAX_NUM_OF_SCOS                         0x0A
+#define HCI_ERR_CONNECTION_EXISTS                       0x0B
+#define HCI_ERR_COMMAND_DISALLOWED                      0x0C
+#define HCI_ERR_HOST_REJECT_RESOURCES                   0x0D
+#define HCI_ERR_HOST_REJECT_SECURITY                    0x0E
+#define HCI_ERR_HOST_REJECT_DEVICE                      0x0F
+#define HCI_ERR_HOST_TIMEOUT                            0x10
+#define HCI_ERR_UNSUPPORTED_VALUE                       0x11
+#define HCI_ERR_ILLEGAL_PARAMETER_FMT                   0x12
+#define HCI_ERR_PEER_USER                               0x13
+#define HCI_ERR_PEER_LOW_RESOURCES                      0x14
+#define HCI_ERR_PEER_POWER_OFF                          0x15
+#define HCI_ERR_CONN_CAUSE_LOCAL_HOST                   0x16
+#define HCI_ERR_REPEATED_ATTEMPTS                       0x17
+#define HCI_ERR_PAIRING_NOT_ALLOWED                     0x18
+#define HCI_ERR_UNKNOWN_LMP_PDU                         0x19
+#define HCI_ERR_UNSUPPORTED_REM_FEATURE                 0x1A
+#define HCI_ERR_SCO_OFFSET_REJECTED                     0x1B
+#define HCI_ERR_SCO_INTERVAL_REJECTED                   0x1C
+#define HCI_ERR_SCO_AIR_MODE                            0x1D
+#define HCI_ERR_INVALID_LMP_PARAM                       0x1E
+#define HCI_ERR_UNSPECIFIED                             0x1F
+#define HCI_ERR_UNSUPPORTED_LMP_FEATURE                 0x20
+#define HCI_ERR_ROLE_CHANGE_NOT_ALLOWED                 0x21
+#define HCI_ERR_LMP_RESPONSE_TIMEOUT                    0x22
+#define HCI_ERR_LMP_ERR_TRANS_COLLISION                 0x23
+#define HCI_ERR_LMP_PDU_NOT_ALLOWED                     0x24
+#define HCI_ERR_ENCRY_MODE_NOT_ACCEPTABLE               0x25
+#define HCI_ERR_UNIT_KEY_USED                           0x26
+#define HCI_ERR_QOS_NOT_SUPPORTED                       0x27
+#define HCI_ERR_INSTANT_PASSED                          0x28
+#define HCI_ERR_PAIRING_WITH_UNIT_KEY_NOT_SUPPORTED     0x29
+#define HCI_ERR_DIFF_TRANSACTION_COLLISION              0x2A
+#define HCI_ERR_UNDEFINED_0x2B                          0x2B
+#define HCI_ERR_QOS_UNACCEPTABLE_PARAM                  0x2C
+#define HCI_ERR_QOS_REJECTED                            0x2D
+#define HCI_ERR_CHAN_CLASSIF_NOT_SUPPORTED              0x2E
+#define HCI_ERR_INSUFFCIENT_SECURITY                    0x2F
+#define HCI_ERR_PARAM_OUT_OF_RANGE                      0x30
+#define HCI_ERR_UNDEFINED_0x31                          0x31
+#define HCI_ERR_ROLE_SWITCH_PENDING                     0x32
+#define HCI_ERR_UNDEFINED_0x33                          0x33
+#define HCI_ERR_RESERVED_SLOT_VIOLATION                 0x34
+#define HCI_ERR_ROLE_SWITCH_FAILED                      0x35
+#define HCI_ERR_INQ_RSP_DATA_TOO_LARGE                  0x36
+#define HCI_ERR_SIMPLE_PAIRING_NOT_SUPPORTED            0x37
+#define HCI_ERR_HOST_BUSY_PAIRING                       0x38
+#define HCI_ERR_REJ_NO_SUITABLE_CHANNEL                 0x39
+#define HCI_ERR_CONTROLLER_BUSY                         0x3A
+#define HCI_ERR_UNACCEPT_CONN_INTERVAL                  0x3B
+#define HCI_ERR_DIRECTED_ADVERTISING_TIMEOUT            0x3C
+#define HCI_ERR_CONN_TOUT_DUE_TO_MIC_FAILURE            0x3D
+#define HCI_ERR_CONN_FAILED_ESTABLISHMENT               0x3E
+#define HCI_ERR_MAC_CONNECTION_FAILED                   0x3F
+
+/* ConnectionLess Broadcast errors */
+#define HCI_ERR_LT_ADDR_ALREADY_IN_USE                  0x40
+#define HCI_ERR_LT_ADDR_NOT_ALLOCATED                   0x41
+#define HCI_ERR_CLB_NOT_ENABLED                         0x42
+#define HCI_ERR_CLB_DATA_TOO_BIG                        0x43
+
+#define HCI_ERR_MAX_ERR                                 0x43
+
+#define HCI_HINT_TO_RECREATE_AMP_PHYS_LINK              0xFF
+
+/*
+** Definitions for HCI enable event
+*/
+#define HCI_INQUIRY_COMPLETE_EV(p)          (*((UINT32 *)(p)) & 0x00000001)
+#define HCI_INQUIRY_RESULT_EV(p)            (*((UINT32 *)(p)) & 0x00000002)
+#define HCI_CONNECTION_COMPLETE_EV(p)       (*((UINT32 *)(p)) & 0x00000004)
+#define HCI_CONNECTION_REQUEST_EV(p)        (*((UINT32 *)(p)) & 0x00000008)
+#define HCI_DISCONNECTION_COMPLETE_EV(p)    (*((UINT32 *)(p)) & 0x00000010)
+#define HCI_AUTHENTICATION_COMPLETE_EV(p)   (*((UINT32 *)(p)) & 0x00000020)
+#define HCI_RMT_NAME_REQUEST_COMPL_EV(p)    (*((UINT32 *)(p)) & 0x00000040)
+#define HCI_CHANGE_CONN_ENCRPT_ENABLE_EV(p) (*((UINT32 *)(p)) & 0x00000080)
+#define HCI_CHANGE_CONN_LINK_KEY_EV(p)      (*((UINT32 *)(p)) & 0x00000100)
+#define HCI_MASTER_LINK_KEY_COMPLETE_EV(p)  (*((UINT32 *)(p)) & 0x00000200)
+#define HCI_READ_RMT_FEATURES_COMPL_EV(p)   (*((UINT32 *)(p)) & 0x00000400)
+#define HCI_READ_RMT_VERSION_COMPL_EV(p)    (*((UINT32 *)(p)) & 0x00000800)
+#define HCI_QOS_SETUP_COMPLETE_EV(p)        (*((UINT32 *)(p)) & 0x00001000)
+#define HCI_COMMAND_COMPLETE_EV(p)          (*((UINT32 *)(p)) & 0x00002000)
+#define HCI_COMMAND_STATUS_EV(p)            (*((UINT32 *)(p)) & 0x00004000)
+#define HCI_HARDWARE_ERROR_EV(p)            (*((UINT32 *)(p)) & 0x00008000)
+#define HCI_FLASH_OCCURED_EV(p)             (*((UINT32 *)(p)) & 0x00010000)
+#define HCI_ROLE_CHANGE_EV(p)               (*((UINT32 *)(p)) & 0x00020000)
+#define HCI_NUM_COMPLETED_PKTS_EV(p)        (*((UINT32 *)(p)) & 0x00040000)
+#define HCI_MODE_CHANGE_EV(p)               (*((UINT32 *)(p)) & 0x00080000)
+#define HCI_RETURN_LINK_KEYS_EV(p)          (*((UINT32 *)(p)) & 0x00100000)
+#define HCI_PIN_CODE_REQUEST_EV(p)          (*((UINT32 *)(p)) & 0x00200000)
+#define HCI_LINK_KEY_REQUEST_EV(p)          (*((UINT32 *)(p)) & 0x00400000)
+#define HCI_LINK_KEY_NOTIFICATION_EV(p)     (*((UINT32 *)(p)) & 0x00800000)
+#define HCI_LOOPBACK_COMMAND_EV(p)          (*((UINT32 *)(p)) & 0x01000000)
+#define HCI_DATA_BUF_OVERFLOW_EV(p)         (*((UINT32 *)(p)) & 0x02000000)
+#define HCI_MAX_SLOTS_CHANGE_EV(p)          (*((UINT32 *)(p)) & 0x04000000)
+#define HCI_READ_CLOCK_OFFSET_COMP_EV(p)    (*((UINT32 *)(p)) & 0x08000000)
+#define HCI_CONN_PKT_TYPE_CHANGED_EV(p)     (*((UINT32 *)(p)) & 0x10000000)
+#define HCI_QOS_VIOLATION_EV(p)             (*((UINT32 *)(p)) & 0x20000000)
+#define HCI_PAGE_SCAN_MODE_CHANGED_EV(p)    (*((UINT32 *)(p)) & 0x40000000)
+#define HCI_PAGE_SCAN_REP_MODE_CHNG_EV(p)   (*((UINT32 *)(p)) & 0x80000000)
+
+/* the default event mask for 2.1+EDR (Lisbon) does not include Lisbon events */
+#define HCI_DEFAULT_EVENT_MASK_0            0xFFFFFFFF
+#define HCI_DEFAULT_EVENT_MASK_1            0x00001FFF
+
+/* the event mask for 2.0 + EDR and later (includes Lisbon events) */
+#define HCI_LISBON_EVENT_MASK_0             0xFFFFFFFF
+#define HCI_LISBON_EVENT_MASK_1             0x1DBFFFFF
+#define HCI_LISBON_EVENT_MASK               "\x0D\xBF\xFF\xFF\xFF\xFF\xFF\xFF"
+#define HCI_LISBON_EVENT_MASK_EXT           "\x1D\xBF\xFF\xFF\xFF\xFF\xFF\xFF"
+#define HCI_DUMO_EVENT_MASK_EXT             "\x3D\xBF\xFF\xFF\xFF\xFF\xFF\xFF"
+/*  0x00001FFF FFFFFFFF Default - no Lisbon events
+    0x00000800 00000000 Synchronous Connection Complete Event
+    0x00001000 00000000 Synchronous Connection Changed Event
+    0x00002000 00000000 Sniff Subrate Event
+    0x00004000 00000000 Extended Inquiry Result Event
+    0x00008000 00000000 Encryption Key Refresh Complete Event
+    0x00010000 00000000 IO Capability Request Event
+    0x00020000 00000000 IO Capability Response Event
+    0x00040000 00000000 User Confirmation Request Event
+    0x00080000 00000000 User Passkey Request Event
+    0x00100000 00000000 Remote OOB Data Request Event
+    0x00200000 00000000 Simple Pairing Complete Event
+    0x00400000 00000000 Generic AMP Link Key Notification Event
+    0x00800000 00000000 Link Supervision Timeout Changed Event
+    0x01000000 00000000 Enhanced Flush Complete Event
+    0x04000000 00000000 User Passkey Notification Event
+    0x08000000 00000000 Keypress Notification Event
+    0x10000000 00000000 Remote Host Supported Features Notification Event
+    0x20000000 00000000 LE Meta Event
+ */
+
+
+/* the event mask for AMP controllers */
+#define HCI_AMP_EVENT_MASK_3_0               "\x00\x00\x00\x00\x00\x00\x3F\xFF"
+
+/*  0x0000000000000000 No events specified (default)
+    0x0000000000000001 Physical Link Complete Event
+    0x0000000000000002 Channel Selected Event
+    0x0000000000000004 Disconnection Physical Link Event
+    0x0000000000000008 Physical Link Loss Early Warning Event
+    0x0000000000000010 Physical Link Recovery Event
+    0x0000000000000020 Logical Link Complete Event
+    0x0000000000000040 Disconnection Logical Link Complete Event
+    0x0000000000000080 Flow Spec Modify Complete Event
+    0x0000000000000100 Number of Completed Data Blocks Event
+    0x0000000000000200 AMP Start Test Event
+    0x0000000000000400 AMP Test End Event
+    0x0000000000000800 AMP Receiver Report Event
+    0x0000000000001000 Short Range Mode Change Complete Event
+    0x0000000000002000 AMP Status Change Event
+*/
+
+/* the event mask page 2 (CLB + CSA4) for BR/EDR controller */
+#define HCI_PAGE_2_EVENT_MASK                  "\x00\x00\x00\x00\x00\x7F\xC0\x00"
+/*  0x0000000000004000 Triggered Clock Capture Event
+    0x0000000000008000 Sync Train Complete Event
+    0x0000000000010000 Sync Train Received Event
+    0x0000000000020000 Connectionless Broadcast Receive Event
+    0x0000000000040000 Connectionless Broadcast Timeout Event
+    0x0000000000080000 Truncated Page Complete Event
+    0x0000000000100000 Salve Page Response Timeout Event
+    0x0000000000200000 Connectionless Broadcast Channel Map Change Event
+    0x0000000000400000 Inquiry Response Notification Event
+*/
+#if BLE_PRIVACY_SPT == TRUE
+/* BLE event mask */
+#define HCI_BLE_EVENT_MASK_DEF               "\x00\x00\x00\x00\x00\x00\x07\xff"
+#else
+#define HCI_BLE_EVENT_MASK_DEF              "\x00\x00\x00\x00\x00\x00\x00\x7f"
+#endif
+/*
+** Definitions for packet type masks (BT1.2 and BT2.0 definitions)
+*/
+#define HCI_PKT_TYPES_MASK_NO_2_DH1         0x0002
+#define HCI_PKT_TYPES_MASK_NO_3_DH1         0x0004
+#define HCI_PKT_TYPES_MASK_DM1              0x0008
+#define HCI_PKT_TYPES_MASK_DH1              0x0010
+#define HCI_PKT_TYPES_MASK_HV1              0x0020
+#define HCI_PKT_TYPES_MASK_HV2              0x0040
+#define HCI_PKT_TYPES_MASK_HV3              0x0080
+#define HCI_PKT_TYPES_MASK_NO_2_DH3         0x0100
+#define HCI_PKT_TYPES_MASK_NO_3_DH3         0x0200
+#define HCI_PKT_TYPES_MASK_DM3              0x0400
+#define HCI_PKT_TYPES_MASK_DH3              0x0800
+#define HCI_PKT_TYPES_MASK_NO_2_DH5         0x1000
+#define HCI_PKT_TYPES_MASK_NO_3_DH5         0x2000
+#define HCI_PKT_TYPES_MASK_DM5              0x4000
+#define HCI_PKT_TYPES_MASK_DH5              0x8000
+
+/* Packet type should be one of valid but at least one should be specified */
+#define HCI_VALID_SCO_PKT_TYPE(t) (((((t) & ~(HCI_PKT_TYPES_MASK_HV1       \
+                                           |  HCI_PKT_TYPES_MASK_HV2       \
+                                           |  HCI_PKT_TYPES_MASK_HV3)) == 0)) \
+                                    && ((t) != 0))
+
+
+
+
+
+/* Packet type should not be invalid and at least one should be specified */
+#define HCI_VALID_ACL_PKT_TYPE(t) (((((t) & ~(HCI_PKT_TYPES_MASK_DM1        \
+                                           |  HCI_PKT_TYPES_MASK_DH1        \
+                                           |  HCI_PKT_TYPES_MASK_DM3        \
+                                           |  HCI_PKT_TYPES_MASK_DH3        \
+                                           |  HCI_PKT_TYPES_MASK_DM5        \
+                                           |  HCI_PKT_TYPES_MASK_DH5        \
+                                           |  HCI_PKT_TYPES_MASK_NO_2_DH1   \
+                                           |  HCI_PKT_TYPES_MASK_NO_3_DH1   \
+                                           |  HCI_PKT_TYPES_MASK_NO_2_DH3   \
+                                           |  HCI_PKT_TYPES_MASK_NO_3_DH3   \
+                                           |  HCI_PKT_TYPES_MASK_NO_2_DH5   \
+                                           |  HCI_PKT_TYPES_MASK_NO_3_DH5  )) == 0)) \
+                                    && (((t) &  (HCI_PKT_TYPES_MASK_DM1        \
+                                              |  HCI_PKT_TYPES_MASK_DH1        \
+                                              |  HCI_PKT_TYPES_MASK_DM3        \
+                                              |  HCI_PKT_TYPES_MASK_DH3        \
+                                              |  HCI_PKT_TYPES_MASK_DM5        \
+                                              |  HCI_PKT_TYPES_MASK_DH5)) != 0))
+
+/*
+** Definitions for eSCO packet type masks (BT1.2 and BT2.0 definitions)
+*/
+#define HCI_ESCO_PKT_TYPES_MASK_HV1         0x0001
+#define HCI_ESCO_PKT_TYPES_MASK_HV2         0x0002
+#define HCI_ESCO_PKT_TYPES_MASK_HV3         0x0004
+#define HCI_ESCO_PKT_TYPES_MASK_EV3         0x0008
+#define HCI_ESCO_PKT_TYPES_MASK_EV4         0x0010
+#define HCI_ESCO_PKT_TYPES_MASK_EV5         0x0020
+#define HCI_ESCO_PKT_TYPES_MASK_NO_2_EV3    0x0040
+#define HCI_ESCO_PKT_TYPES_MASK_NO_3_EV3    0x0080
+#define HCI_ESCO_PKT_TYPES_MASK_NO_2_EV5    0x0100
+#define HCI_ESCO_PKT_TYPES_MASK_NO_3_EV5    0x0200
+
+/* Packet type should be one of valid but at least one should be specified for 1.2 */
+#define HCI_VALID_ESCO_PKT_TYPE(t) (((((t) & ~(HCI_ESCO_PKT_TYPES_MASK_EV3       \
+                                           |   HCI_ESCO_PKT_TYPES_MASK_EV4       \
+                                           |   HCI_ESCO_PKT_TYPES_MASK_EV5)) == 0)) \
+                                    && ((t) != 0))/* Packet type should be one of valid but at least one should be specified */
+
+#define HCI_VALID_ESCO_SCOPKT_TYPE(t) (((((t) & ~(HCI_ESCO_PKT_TYPES_MASK_HV1       \
+                                           |      HCI_ESCO_PKT_TYPES_MASK_HV2       \
+                                           |      HCI_ESCO_PKT_TYPES_MASK_HV3)) == 0)) \
+                                    && ((t) != 0))
+
+#define HCI_VALID_SCO_ALL_PKT_TYPE(t) (((((t) & ~(HCI_ESCO_PKT_TYPES_MASK_HV1       \
+                                           |      HCI_ESCO_PKT_TYPES_MASK_HV2       \
+                                           |      HCI_ESCO_PKT_TYPES_MASK_HV3       \
+                                           |      HCI_ESCO_PKT_TYPES_MASK_EV3       \
+                                           |      HCI_ESCO_PKT_TYPES_MASK_EV4       \
+                                           |      HCI_ESCO_PKT_TYPES_MASK_EV5)) == 0)) \
+                                    && ((t) != 0))
+
+/*
+** Define parameters to allow role switch during create connection
+*/
+#define HCI_CR_CONN_NOT_ALLOW_SWITCH    0x00
+#define HCI_CR_CONN_ALLOW_SWITCH        0x01
+
+/*
+** Hold Mode command destination
+*/
+#define HOLD_MODE_DEST_LOCAL_DEVICE     0x00
+#define HOLD_MODE_DEST_RMT_DEVICE       0x01
+
+/*
+**  Definitions for different HCI parameters
+*/
+#define HCI_PER_INQ_MIN_MAX_PERIOD      0x0003
+#define HCI_PER_INQ_MAX_MAX_PERIOD      0xFFFF
+#define HCI_PER_INQ_MIN_MIN_PERIOD      0x0002
+#define HCI_PER_INQ_MAX_MIN_PERIOD      0xFFFE
+
+#define HCI_MAX_INQUIRY_LENGTH          0x30
+
+#define HCI_MIN_INQ_LAP                 0x9E8B00
+#define HCI_MAX_INQ_LAP                 0x9E8B3F
+
+/* HCI role defenitions */
+#define HCI_ROLE_MASTER                 0x00
+#define HCI_ROLE_SLAVE                  0x01
+#define HCI_ROLE_UNKNOWN                0xff
+
+/* HCI mode defenitions */
+#define HCI_MODE_ACTIVE                 0x00
+#define HCI_MODE_HOLD                   0x01
+#define HCI_MODE_SNIFF                  0x02
+#define HCI_MODE_PARK                   0x03
+
+/* HCI Flow Control Mode defenitions */
+#define HCI_PACKET_BASED_FC_MODE        0x00
+#define HCI_BLOCK_BASED_FC_MODE         0x01
+
+/* Define Packet types as requested by the Host */
+#define HCI_ACL_PKT_TYPE_NONE           0x0000
+#define HCI_ACL_PKT_TYPE_DM1            0x0008
+#define HCI_ACL_PKT_TYPE_DH1            0x0010
+#define HCI_ACL_PKT_TYPE_AUX1           0x0200
+#define HCI_ACL_PKT_TYPE_DM3            0x0400
+#define HCI_ACL_PKT_TYPE_DH3            0x0800
+#define HCI_ACL_PKT_TYPE_DM5            0x4000
+#define HCI_ACL_PKT_TYPE_DH5            0x8000
+
+/* Define key type in the Master Link Key command */
+#define HCI_USE_SEMI_PERMANENT_KEY      0x00
+#define HCI_USE_TEMPORARY_KEY           0x01
+
+/* Page scan period modes */
+#define HCI_PAGE_SCAN_REP_MODE_R0       0x00
+#define HCI_PAGE_SCAN_REP_MODE_R1       0x01
+#define HCI_PAGE_SCAN_REP_MODE_R2       0x02
+
+/* Define limits for page scan repetition modes */
+#define HCI_PAGE_SCAN_R1_LIMIT          0x0800
+#define HCI_PAGE_SCAN_R2_LIMIT          0x1000
+
+/* Page scan period modes */
+#define HCI_PAGE_SCAN_PER_MODE_P0       0x00
+#define HCI_PAGE_SCAN_PER_MODE_P1       0x01
+#define HCI_PAGE_SCAN_PER_MODE_P2       0x02
+
+/* Page scan modes */
+#define HCI_MANDATARY_PAGE_SCAN_MODE    0x00
+#define HCI_OPTIONAL_PAGE_SCAN_MODE1    0x01
+#define HCI_OPTIONAL_PAGE_SCAN_MODE2    0x02
+#define HCI_OPTIONAL_PAGE_SCAN_MODE3    0x03
+
+/* Page and inquiry scan types */
+#define HCI_SCAN_TYPE_STANDARD          0x00
+#define HCI_SCAN_TYPE_INTERLACED        0x01       /* 1.2 devices or later */
+#define HCI_DEF_SCAN_TYPE               HCI_SCAN_TYPE_STANDARD
+
+/* Definitions for quality of service service types */
+#define HCI_SERVICE_NO_TRAFFIC          0x00
+#define HCI_SERVICE_BEST_EFFORT         0x01
+#define HCI_SERVICE_GUARANTEED          0x02
+
+#define HCI_QOS_LATENCY_DO_NOT_CARE     0xFFFFFFFF
+#define HCI_QOS_DELAY_DO_NOT_CARE       0xFFFFFFFF
+
+/* Definitions for Flow Specification */
+#define HCI_FLOW_SPEC_LATENCY_DO_NOT_CARE 0xFFFFFFFF
+
+/* Definitions for AFH Channel Map */
+#define HCI_AFH_CHANNEL_MAP_LEN         10
+
+/* Definitions for Extended Inquiry Response */
+#define HCI_EXT_INQ_RESPONSE_LEN        240
+#define HCI_EIR_FLAGS_TYPE                       BT_EIR_FLAGS_TYPE
+#define HCI_EIR_MORE_16BITS_UUID_TYPE            BT_EIR_MORE_16BITS_UUID_TYPE
+#define HCI_EIR_COMPLETE_16BITS_UUID_TYPE        BT_EIR_COMPLETE_16BITS_UUID_TYPE
+#define HCI_EIR_MORE_32BITS_UUID_TYPE            BT_EIR_MORE_32BITS_UUID_TYPE
+#define HCI_EIR_COMPLETE_32BITS_UUID_TYPE        BT_EIR_COMPLETE_32BITS_UUID_TYPE
+#define HCI_EIR_MORE_128BITS_UUID_TYPE           BT_EIR_MORE_128BITS_UUID_TYPE
+#define HCI_EIR_COMPLETE_128BITS_UUID_TYPE       BT_EIR_COMPLETE_128BITS_UUID_TYPE
+#define HCI_EIR_SHORTENED_LOCAL_NAME_TYPE        BT_EIR_SHORTENED_LOCAL_NAME_TYPE
+#define HCI_EIR_COMPLETE_LOCAL_NAME_TYPE         BT_EIR_COMPLETE_LOCAL_NAME_TYPE
+#define HCI_EIR_TX_POWER_LEVEL_TYPE              BT_EIR_TX_POWER_LEVEL_TYPE
+#define HCI_EIR_MANUFACTURER_SPECIFIC_TYPE       BT_EIR_MANUFACTURER_SPECIFIC_TYPE
+#define HCI_EIR_SERVICE_DATA_TYPE                BT_EIR_SERVICE_DATA_TYPE
+#define HCI_EIR_SERVICE_DATA_16BITS_UUID_TYPE    BT_EIR_SERVICE_DATA_16BITS_UUID_TYPE
+#define HCI_EIR_SERVICE_DATA_32BITS_UUID_TYPE    BT_EIR_SERVICE_DATA_32BITS_UUID_TYPE
+#define HCI_EIR_SERVICE_DATA_128BITS_UUID_TYPE   BT_EIR_SERVICE_DATA_128BITS_UUID_TYPE
+#define HCI_EIR_OOB_BD_ADDR_TYPE                 BT_EIR_OOB_BD_ADDR_TYPE
+#define HCI_EIR_OOB_COD_TYPE                     BT_EIR_OOB_COD_TYPE
+#define HCI_EIR_OOB_SSP_HASH_C_TYPE              BT_EIR_OOB_SSP_HASH_C_TYPE
+#define HCI_EIR_OOB_SSP_RAND_R_TYPE              BT_EIR_OOB_SSP_RAND_R_TYPE
+
+/* Definitions for Write Simple Pairing Mode */
+#define HCI_SP_MODE_UNDEFINED           0x00
+#define HCI_SP_MODE_ENABLED             0x01
+
+/* Definitions for Write Simple Pairing Debug Mode */
+#define HCI_SPD_MODE_DISABLED           0x00
+#define HCI_SPD_MODE_ENABLED            0x01
+
+/* Definitions for Write Secure Connections Host Support */
+#define HCI_SC_MODE_DISABLED            0x00
+#define HCI_SC_MODE_ENABLED             0x01
+
+/* Definitions for IO Capability Response/Command */
+#define HCI_IO_CAP_DISPLAY_ONLY         0x00
+#define HCI_IO_CAP_DISPLAY_YESNO        0x01
+#define HCI_IO_CAP_KEYBOARD_ONLY        0x02
+#define HCI_IO_CAP_NO_IO                0x03
+
+#define HCI_OOB_AUTH_DATA_NOT_PRESENT   0x00
+#define HCI_OOB_REM_AUTH_DATA_PRESENT   0x01
+
+#define HCI_MITM_PROTECT_NOT_REQUIRED  0x00
+#define HCI_MITM_PROTECT_REQUIRED      0x01
+
+
+/* Policy settings status */
+#define HCI_DISABLE_ALL_LM_MODES        0x0000
+#define HCI_ENABLE_MASTER_SLAVE_SWITCH  0x0001
+#define HCI_ENABLE_HOLD_MODE            0x0002
+#define HCI_ENABLE_SNIFF_MODE           0x0004
+#define HCI_ENABLE_PARK_MODE            0x0008
+
+/* By default allow switch, because host can not allow that */
+/* that until he created the connection */
+#define HCI_DEFAULT_POLICY_SETTINGS     HCI_DISABLE_ALL_LM_MODES
+
+/* Filters that are sent in set filter command */
+#define HCI_FILTER_TYPE_CLEAR_ALL       0x00
+#define HCI_FILTER_INQUIRY_RESULT       0x01
+#define HCI_FILTER_CONNECTION_SETUP     0x02
+
+#define HCI_FILTER_COND_NEW_DEVICE      0x00
+#define HCI_FILTER_COND_DEVICE_CLASS    0x01
+#define HCI_FILTER_COND_BD_ADDR         0x02
+
+#define HCI_DO_NOT_AUTO_ACCEPT_CONNECT  1
+#define HCI_DO_AUTO_ACCEPT_CONNECT      2   /* role switch disabled */
+#define HCI_DO_AUTO_ACCEPT_CONNECT_RS   3   /* role switch enabled (1.1 errata 1115) */
+
+/* Auto accept flags */
+#define HCI_AUTO_ACCEPT_OFF             0x00
+#define HCI_AUTO_ACCEPT_ACL_CONNECTIONS 0x01
+#define HCI_AUTO_ACCEPT_SCO_CONNECTIONS 0x02
+
+/* PIN type */
+#define HCI_PIN_TYPE_VARIABLE           0
+#define HCI_PIN_TYPE_FIXED              1
+
+/* Loopback Modes */
+#define HCI_LOOPBACK_MODE_DISABLED      0
+#define HCI_LOOPBACK_MODE_LOCAL         1
+#define HCI_LOOPBACK_MODE_REMOTE        2
+
+#define SLOTS_PER_10MS                  16      /* 0.625 ms slots in a 10 ms tick */
+
+/* Maximum connection accept timeout in 0.625msec */
+#define HCI_MAX_CONN_ACCEPT_TOUT        0xB540  /* 29 sec */
+#define HCI_DEF_CONN_ACCEPT_TOUT        0x1F40  /* 5 sec */
+
+/* Page timeout is used in LC only and LC is counting down slots not using OS */
+#define HCI_DEFAULT_PAGE_TOUT           0x2000  /* 5.12 sec (in slots) */
+
+/* Scan enable flags */
+#define HCI_NO_SCAN_ENABLED             0x00
+#define HCI_INQUIRY_SCAN_ENABLED        0x01
+#define HCI_PAGE_SCAN_ENABLED           0x02
+
+/* Pagescan timer definitions in 0.625 ms */
+#define HCI_MIN_PAGESCAN_INTERVAL       0x12    /* 11.25 ms */
+#define HCI_MAX_PAGESCAN_INTERVAL       0x1000  /* 2.56 sec */
+#define HCI_DEF_PAGESCAN_INTERVAL       0x0800  /* 1.28 sec */
+
+/* Parameter for pagescan window is passed to LC and is kept in slots */
+#define HCI_MIN_PAGESCAN_WINDOW         0x11    /* 10.625 ms */
+#define HCI_MAX_PAGESCAN_WINDOW         0x1000  /* 2.56  sec */
+#define HCI_DEF_PAGESCAN_WINDOW         0x12    /* 11.25 ms  */
+
+/* Inquiryscan timer definitions in 0.625 ms */
+#define HCI_MIN_INQUIRYSCAN_INTERVAL    0x12    /* 11.25 ms */
+#define HCI_MAX_INQUIRYSCAN_INTERVAL    0x1000  /* 2.56 sec */
+#define HCI_DEF_INQUIRYSCAN_INTERVAL    0x1000  /* 2.56 sec */
+
+/* Parameter for inquiryscan window is passed to LC and is kept in slots */
+#define HCI_MIN_INQUIRYSCAN_WINDOW      0x11    /* 10.625 ms */
+#define HCI_MAX_INQUIRYSCAN_WINDOW      0x1000  /* 2.56 sec */
+#define HCI_DEF_INQUIRYSCAN_WINDOW      0x12    /* 11.25 ms */
+
+/* Encryption modes */
+#define HCI_ENCRYPT_MODE_DISABLED       0x00
+#define HCI_ENCRYPT_MODE_POINT_TO_POINT 0x01
+#define HCI_ENCRYPT_MODE_ALL            0x02
+
+/* Voice settings */
+#define HCI_INP_CODING_LINEAR           0x0000 /* 0000000000 */
+#define HCI_INP_CODING_U_LAW            0x0100 /* 0100000000 */
+#define HCI_INP_CODING_A_LAW            0x0200 /* 1000000000 */
+#define HCI_INP_CODING_MASK             0x0300 /* 1100000000 */
+
+#define HCI_INP_DATA_FMT_1S_COMPLEMENT  0x0000 /* 0000000000 */
+#define HCI_INP_DATA_FMT_2S_COMPLEMENT  0x0040 /* 0001000000 */
+#define HCI_INP_DATA_FMT_SIGN_MAGNITUDE 0x0080 /* 0010000000 */
+#define HCI_INP_DATA_FMT_UNSIGNED       0x00c0 /* 0011000000 */
+#define HCI_INP_DATA_FMT_MASK           0x00c0 /* 0011000000 */
+
+#define HCI_INP_SAMPLE_SIZE_8BIT        0x0000 /* 0000000000 */
+#define HCI_INP_SAMPLE_SIZE_16BIT       0x0020 /* 0000100000 */
+#define HCI_INP_SAMPLE_SIZE_MASK        0x0020 /* 0000100000 */
+
+#define HCI_INP_LINEAR_PCM_BIT_POS_MASK 0x001c /* 0000011100 */
+#define HCI_INP_LINEAR_PCM_BIT_POS_OFFS 2
+
+#define HCI_AIR_CODING_FORMAT_CVSD      0x0000 /* 0000000000 */
+#define HCI_AIR_CODING_FORMAT_U_LAW     0x0001 /* 0000000001 */
+#define HCI_AIR_CODING_FORMAT_A_LAW     0x0002 /* 0000000010 */
+#define HCI_AIR_CODING_FORMAT_TRANSPNT  0x0003 /* 0000000011 */
+#define HCI_AIR_CODING_FORMAT_MASK      0x0003 /* 0000000011 */
+
+/* default                                        0001100000 */
+#define HCI_DEFAULT_VOICE_SETTINGS    (HCI_INP_CODING_LINEAR \
+                                     | HCI_INP_DATA_FMT_2S_COMPLEMENT \
+                                     | HCI_INP_SAMPLE_SIZE_16BIT \
+                                     | HCI_AIR_CODING_FORMAT_CVSD)
+
+#define HCI_CVSD_SUPPORTED(x)       (((x) & HCI_AIR_CODING_FORMAT_MASK) == HCI_AIR_CODING_FORMAT_CVSD)
+#define HCI_U_LAW_SUPPORTED(x)      (((x) & HCI_AIR_CODING_FORMAT_MASK) == HCI_AIR_CODING_FORMAT_U_LAW)
+#define HCI_A_LAW_SUPPORTED(x)      (((x) & HCI_AIR_CODING_FORMAT_MASK) == HCI_AIR_CODING_FORMAT_A_LAW)
+#define HCI_TRANSPNT_SUPPORTED(x)   (((x) & HCI_AIR_CODING_FORMAT_MASK) == HCI_AIR_CODING_FORMAT_TRANSPNT)
+
+/* Retransmit timer definitions in 0.625 */
+#define HCI_MAX_AUTO_FLUSH_TOUT         0x07FF
+#define HCI_DEFAULT_AUTO_FLUSH_TOUT     0       /* No auto flush */
+
+/* Broadcast retransmitions */
+#define HCI_DEFAULT_NUM_BCAST_RETRAN    1
+
+/* Define broadcast data types as passed in the hci data packet */
+#define HCI_DATA_POINT_TO_POINT         0x00
+#define HCI_DATA_ACTIVE_BCAST           0x01
+#define HCI_DATA_PICONET_BCAST          0x02
+
+/* Hold mode activity */
+#define HCI_MAINTAIN_CUR_POWER_STATE    0x00
+#define HCI_SUSPEND_PAGE_SCAN           0x01
+#define HCI_SUSPEND_INQUIRY_SCAN        0x02
+#define HCI_SUSPEND_PERIODIC_INQUIRIES  0x04
+
+/* Default Link Supervision timeoout */
+#define HCI_DEFAULT_INACT_TOUT          0x7D00  /* BR/EDR (20 seconds) */
+#define HCI_DEFAULT_AMP_INACT_TOUT      0x3E80  /* AMP    (10 seconds) */
+
+/* Read transmit power level parameter */
+#define HCI_READ_CURRENT                0x00
+#define HCI_READ_MAXIMUM                0x01
+
+/* Link types for connection complete event */
+#define HCI_LINK_TYPE_SCO               0x00
+#define HCI_LINK_TYPE_ACL               0x01
+#define HCI_LINK_TYPE_ESCO              0x02
+
+/* Link Key Notification Event (Key Type) definitions */
+#define HCI_LKEY_TYPE_COMBINATION       0x00
+#define HCI_LKEY_TYPE_LOCAL_UNIT        0x01
+#define HCI_LKEY_TYPE_REMOTE_UNIT       0x02
+#define HCI_LKEY_TYPE_DEBUG_COMB        0x03
+#define HCI_LKEY_TYPE_UNAUTH_COMB       0x04
+#define HCI_LKEY_TYPE_AUTH_COMB         0x05
+#define HCI_LKEY_TYPE_CHANGED_COMB      0x06
+#define HCI_LKEY_TYPE_UNAUTH_COMB_P_256 0x07
+#define HCI_LKEY_TYPE_AUTH_COMB_P_256   0x08
+
+/* Internal definitions - not used over HCI */
+#define HCI_LKEY_TYPE_AMP_WIFI          0x80
+#define HCI_LKEY_TYPE_AMP_UWB           0x81
+#define HCI_LKEY_TYPE_UNKNOWN           0xff
+
+/* Read Local Version HCI Version return values (Command Complete Event) */
+#define HCI_VERSION_1_0B                0x00
+#define HCI_VERSION_1_1                 0x01
+
+/* Define an invalid value for a handle */
+#define HCI_INVALID_HANDLE              0xFFFF
+
+/* Define max ammount of data in the HCI command */
+#define HCI_COMMAND_SIZE        255
+
+/* Define the preamble length for all HCI Commands.
+** This is 2-bytes for opcode and 1 byte for length
+*/
+#define HCIC_PREAMBLE_SIZE      3
+
+/* Define the preamble length for all HCI Events
+** This is 1-byte for opcode and 1 byte for length
+*/
+#define HCIE_PREAMBLE_SIZE      2
+#define HCI_SCO_PREAMBLE_SIZE   3
+#define HCI_DATA_PREAMBLE_SIZE  4
+
+/* local Bluetooth controller id for AMP HCI */
+#define LOCAL_BR_EDR_CONTROLLER_ID      0
+
+/* controller id types for AMP HCI */
+#define HCI_CONTROLLER_TYPE_BR_EDR      0
+#define HCI_CONTROLLER_TYPE_802_11      1
+#define HCI_CONTROLLER_TYPE_ECMA        2
+#define HCI_MAX_CONTROLLER_TYPES        3
+
+/*  ConnectionLess Broadcast */
+#define HCI_CLB_DISABLE                 0x00
+#define HCI_CLB_ENABLE                  0x01
+
+/* ConnectionLess Broadcast Data fragment */
+#define HCI_CLB_FRAGMENT_CONT           0x00
+#define HCI_CLB_FRAGMENT_START          0x01
+#define HCI_CLB_FRAGMENT_END            0x02
+#define HCI_CLB_FRAGMENT_SINGLE         0x03
+
+/* AMP Controller Status codes
+*/
+#define HCI_AMP_CTRLR_PHYSICALLY_DOWN   0
+#define HCI_AMP_CTRLR_USABLE_BY_BT      1
+#define HCI_AMP_CTRLR_UNUSABLE_FOR_BT   2
+#define HCI_AMP_CTRLR_LOW_CAP_FOR_BT    3
+#define HCI_AMP_CTRLR_MED_CAP_FOR_BT    4
+#define HCI_AMP_CTRLR_HIGH_CAP_FOR_BT   5
+#define HCI_AMP_CTRLR_FULL_CAP_FOR_BT   6
+
+#define HCI_MAX_AMP_STATUS_TYPES        7
+
+
+/* Define the extended flow specification fields used by AMP */
+typedef struct
+{
+    UINT8       id;
+    UINT8       stype;
+    UINT16      max_sdu_size;
+    UINT32      sdu_inter_time;
+    UINT32      access_latency;
+    UINT32      flush_timeout;
+} tHCI_EXT_FLOW_SPEC;
+
+
+/* HCI message type definitions (for H4 messages) */
+#define HCIT_TYPE_COMMAND   1
+#define HCIT_TYPE_ACL_DATA  2
+#define HCIT_TYPE_SCO_DATA  3
+#define HCIT_TYPE_EVENT     4
+#define HCIT_TYPE_LM_DIAG   7
+#define HCIT_TYPE_NFC       16
+
+#define HCIT_LM_DIAG_LENGTH 63
+
+/* Parameter information for HCI_BRCM_SET_ACL_PRIORITY */
+#define HCI_BRCM_ACL_PRIORITY_PARAM_SIZE    3
+#define HCI_BRCM_ACL_PRIORITY_LOW           0x00
+#define HCI_BRCM_ACL_PRIORITY_HIGH          0xFF
+#define HCI_BRCM_SET_ACL_PRIORITY           (0x0057 | HCI_GRP_VENDOR_SPECIFIC)
+
+/* Define values for LMP Test Control parameters
+** Test Scenario, Hopping Mode, Power Control Mode
+*/
+#define LMP_TESTCTL_TESTSC_PAUSE        0
+#define LMP_TESTCTL_TESTSC_TXTEST_0     1
+#define LMP_TESTCTL_TESTSC_TXTEST_1     2
+#define LMP_TESTCTL_TESTSC_TXTEST_1010  3
+#define LMP_TESTCTL_TESTSC_PSRND_BITSEQ 4
+#define LMP_TESTCTL_TESTSC_CLOSEDLB_ACL 5
+#define LMP_TESTCTL_TESTSC_CLOSEDLB_SCO 6
+#define LMP_TESTCTL_TESTSC_ACL_NOWHIT   7
+#define LMP_TESTCTL_TESTSC_SCO_NOWHIT   8
+#define LMP_TESTCTL_TESTSC_TXTEST_11110000  9
+#define LMP_TESTCTL_TESTSC_EXITTESTMODE 255
+
+#define LMP_TESTCTL_HOPMOD_RXTX1FREQ    0
+#define LMP_TESTCTL_HOPMOD_HOP_EURUSA   1
+#define LMP_TESTCTL_HOPMOD_HOP_JAPAN    2
+#define LMP_TESTCTL_HOPMOD_HOP_FRANCE   3
+#define LMP_TESTCTL_HOPMOD_HOP_SPAIN    4
+#define LMP_TESTCTL_HOPMOD_REDUCED_HOP  5
+
+#define LMP_TESTCTL_POWCTL_FIXEDTX_OP   0
+#define LMP_TESTCTL_POWCTL_ADAPTIVE     1
+
+// TODO(zachoverflow): remove this once broadcom specific hacks are removed
+#define LMP_COMPID_BROADCOM             15
+
+/*
+** Define the packet types in the packet header, and a couple extra
+*/
+#define PKT_TYPE_NULL   0x00
+#define PKT_TYPE_POLL   0x01
+#define PKT_TYPE_FHS    0x02
+#define PKT_TYPE_DM1    0x03
+
+#define PKT_TYPE_DH1    0x04
+#define PKT_TYPE_HV1    0x05
+#define PKT_TYPE_HV2    0x06
+#define PKT_TYPE_HV3    0x07
+#define PKT_TYPE_DV     0x08
+#define PKT_TYPE_AUX1   0x09
+
+#define PKT_TYPE_DM3    0x0a
+#define PKT_TYPE_DH3    0x0b
+
+#define PKT_TYPE_DM5    0x0e
+#define PKT_TYPE_DH5    0x0f
+
+
+#define PKT_TYPE_ID     0x10        /* Internally used packet types */
+#define PKT_TYPE_BAD    0x11
+#define PKT_TYPE_NONE   0x12
+
+/*
+** Define packet size
+*/
+#define HCI_DM1_PACKET_SIZE         17
+#define HCI_DH1_PACKET_SIZE         27
+#define HCI_DM3_PACKET_SIZE         121
+#define HCI_DH3_PACKET_SIZE         183
+#define HCI_DM5_PACKET_SIZE         224
+#define HCI_DH5_PACKET_SIZE         339
+#define HCI_AUX1_PACKET_SIZE        29
+#define HCI_HV1_PACKET_SIZE         10
+#define HCI_HV2_PACKET_SIZE         20
+#define HCI_HV3_PACKET_SIZE         30
+#define HCI_DV_PACKET_SIZE          9
+#define HCI_EDR2_DH1_PACKET_SIZE    54
+#define HCI_EDR2_DH3_PACKET_SIZE    367
+#define HCI_EDR2_DH5_PACKET_SIZE    679
+#define HCI_EDR3_DH1_PACKET_SIZE    83
+#define HCI_EDR3_DH3_PACKET_SIZE    552
+#define HCI_EDR3_DH5_PACKET_SIZE    1021
+
+/* Feature Pages */
+#define HCI_EXT_FEATURES_PAGE_0     0       /* Extended Feature Page 0 (regular features) */
+#define HCI_EXT_FEATURES_PAGE_1     1       /* Extended Feature Page 1 */
+#define HCI_EXT_FEATURES_PAGE_2     2       /* Extended Feature Page 2 */
+#define HCI_EXT_FEATURES_PAGE_MAX   HCI_EXT_FEATURES_PAGE_2
+
+#define HCI_FEATURE_BYTES_PER_PAGE      8
+
+#define HCI_FEATURES_KNOWN(x) ((x[0] | x[1] | x[2] | x[3] | x[4] | x[5] | x[6] | x[7]) != 0)
+
+/*
+**   LMP features encoding - page 0
+*/
+#define HCI_FEATURE_3_SLOT_PACKETS_MASK 0x01
+#define HCI_FEATURE_3_SLOT_PACKETS_OFF  0
+#define HCI_3_SLOT_PACKETS_SUPPORTED(x) ((x)[HCI_FEATURE_3_SLOT_PACKETS_OFF] & HCI_FEATURE_3_SLOT_PACKETS_MASK)
+
+#define HCI_FEATURE_5_SLOT_PACKETS_MASK 0x02
+#define HCI_FEATURE_5_SLOT_PACKETS_OFF  0
+#define HCI_5_SLOT_PACKETS_SUPPORTED(x) ((x)[HCI_FEATURE_5_SLOT_PACKETS_OFF] & HCI_FEATURE_5_SLOT_PACKETS_MASK)
+
+#define HCI_FEATURE_ENCRYPTION_MASK     0x04
+#define HCI_FEATURE_ENCRYPTION_OFF      0
+#define HCI_ENCRYPTION_SUPPORTED(x)     ((x)[HCI_FEATURE_ENCRYPTION_OFF] & HCI_FEATURE_ENCRYPTION_MASK)
+
+#define HCI_FEATURE_SLOT_OFFSET_MASK    0x08
+#define HCI_FEATURE_SLOT_OFFSET_OFF     0
+#define HCI_SLOT_OFFSET_SUPPORTED(x)    ((x)[HCI_FEATURE_SLOT_OFFSET_OFF] & HCI_FEATURE_SLOT_OFFSET_MASK)
+
+#define HCI_FEATURE_TIMING_ACC_MASK     0x10
+#define HCI_FEATURE_TIMING_ACC_OFF      0
+#define HCI_TIMING_ACC_SUPPORTED(x)     ((x)[HCI_FEATURE_TIMING_ACC_OFF] & HCI_FEATURE_TIMING_ACC_MASK)
+
+#define HCI_FEATURE_SWITCH_MASK         0x20
+#define HCI_FEATURE_SWITCH_OFF          0
+#define HCI_SWITCH_SUPPORTED(x)         ((x)[HCI_FEATURE_SWITCH_OFF] & HCI_FEATURE_SWITCH_MASK)
+
+#define HCI_FEATURE_HOLD_MODE_MASK      0x40
+#define HCI_FEATURE_HOLD_MODE_OFF       0
+#define HCI_HOLD_MODE_SUPPORTED(x)      ((x)[HCI_FEATURE_HOLD_MODE_OFF] & HCI_FEATURE_HOLD_MODE_MASK)
+
+#define HCI_FEATURE_SNIFF_MODE_MASK     0x80
+#define HCI_FEATURE_SNIFF_MODE_OFF      0
+#define HCI_SNIFF_MODE_SUPPORTED(x)      ((x)[HCI_FEATURE_SNIFF_MODE_OFF] & HCI_FEATURE_SNIFF_MODE_MASK)
+
+#define HCI_FEATURE_PARK_MODE_MASK      0x01
+#define HCI_FEATURE_PARK_MODE_OFF       1
+#define HCI_PARK_MODE_SUPPORTED(x)      ((x)[HCI_FEATURE_PARK_MODE_OFF] & HCI_FEATURE_PARK_MODE_MASK)
+
+#define HCI_FEATURE_RSSI_MASK           0x02
+#define HCI_FEATURE_RSSI_OFF            1
+#define HCI_RSSI_SUPPORTED(x)           ((x)[HCI_FEATURE_RSSI_OFF] & HCI_FEATURE_RSSI_MASK)
+
+#define HCI_FEATURE_CQM_DATA_RATE_MASK  0x04
+#define HCI_FEATURE_CQM_DATA_RATE_OFF   1
+#define HCI_CQM_DATA_RATE_SUPPORTED(x)  ((x)[HCI_FEATURE_CQM_DATA_RATE_OFF] & HCI_FEATURE_CQM_DATA_RATE_MASK)
+
+#define HCI_FEATURE_SCO_LINK_MASK       0x08
+#define HCI_FEATURE_SCO_LINK_OFF        1
+#define HCI_SCO_LINK_SUPPORTED(x)       ((x)[HCI_FEATURE_SCO_LINK_OFF] & HCI_FEATURE_SCO_LINK_MASK)
+
+#define HCI_FEATURE_HV2_PACKETS_MASK    0x10
+#define HCI_FEATURE_HV2_PACKETS_OFF     1
+#define HCI_HV2_PACKETS_SUPPORTED(x)    ((x)[HCI_FEATURE_HV2_PACKETS_OFF] & HCI_FEATURE_HV2_PACKETS_MASK)
+
+#define HCI_FEATURE_HV3_PACKETS_MASK    0x20
+#define HCI_FEATURE_HV3_PACKETS_OFF     1
+#define HCI_HV3_PACKETS_SUPPORTED(x)    ((x)[HCI_FEATURE_HV3_PACKETS_OFF] & HCI_FEATURE_HV3_PACKETS_MASK)
+
+#define HCI_FEATURE_U_LAW_MASK          0x40
+#define HCI_FEATURE_U_LAW_OFF           1
+#define HCI_LMP_U_LAW_SUPPORTED(x)      ((x)[HCI_FEATURE_U_LAW_OFF] & HCI_FEATURE_U_LAW_MASK)
+
+#define HCI_FEATURE_A_LAW_MASK          0x80
+#define HCI_FEATURE_A_LAW_OFF           1
+#define HCI_LMP_A_LAW_SUPPORTED(x)      ((x)[HCI_FEATURE_A_LAW_OFF] & HCI_FEATURE_A_LAW_MASK)
+
+#define HCI_FEATURE_CVSD_MASK           0x01
+#define HCI_FEATURE_CVSD_OFF            2
+#define HCI_LMP_CVSD_SUPPORTED(x)       ((x)[HCI_FEATURE_CVSD_OFF] & HCI_FEATURE_CVSD_MASK)
+
+#define HCI_FEATURE_PAGING_SCHEME_MASK  0x02
+#define HCI_FEATURE_PAGING_SCHEME_OFF   2
+#define HCI_PAGING_SCHEME_SUPPORTED(x) ((x)[HCI_FEATURE_PAGING_SCHEME_OFF] & HCI_FEATURE_PAGING_SCHEME_MASK)
+
+#define HCI_FEATURE_POWER_CTRL_MASK     0x04
+#define HCI_FEATURE_POWER_CTRL_OFF      2
+#define HCI_POWER_CTRL_SUPPORTED(x)     ((x)[HCI_FEATURE_POWER_CTRL_OFF] & HCI_FEATURE_POWER_CTRL_MASK)
+
+#define HCI_FEATURE_TRANSPNT_MASK       0x08
+#define HCI_FEATURE_TRANSPNT_OFF        2
+#define HCI_LMP_TRANSPNT_SUPPORTED(x)   ((x)[HCI_FEATURE_TRANSPNT_OFF] & HCI_FEATURE_TRANSPNT_MASK)
+
+#define HCI_FEATURE_FLOW_CTRL_LAG_MASK  0x70
+#define HCI_FEATURE_FLOW_CTRL_LAG_OFF   2
+#define HCI_FLOW_CTRL_LAG_VALUE(x)      (((x)[HCI_FEATURE_FLOW_CTRL_LAG_OFF] & HCI_FEATURE_FLOW_CTRL_LAG_MASK) >> 4)
+
+#define HCI_FEATURE_BROADCAST_ENC_MASK  0x80
+#define HCI_FEATURE_BROADCAST_ENC_OFF   2
+#define HCI_LMP_BCAST_ENC_SUPPORTED(x)  ((x)[HCI_FEATURE_BROADCAST_ENC_OFF] & HCI_FEATURE_BROADCAST_ENC_MASK)
+
+#define HCI_FEATURE_SCATTER_MODE_MASK   0x01
+#define HCI_FEATURE_SCATTER_MODE_OFF    3
+#define HCI_LMP_SCATTER_MODE_SUPPORTED(x) ((x)[HCI_FEATURE_SCATTER_MODE_OFF] & HCI_FEATURE_SCATTER_MODE_MASK)
+
+#define HCI_FEATURE_EDR_ACL_2MPS_MASK   0x02
+#define HCI_FEATURE_EDR_ACL_2MPS_OFF    3
+#define HCI_EDR_ACL_2MPS_SUPPORTED(x)   ((x)[HCI_FEATURE_EDR_ACL_2MPS_OFF] & HCI_FEATURE_EDR_ACL_2MPS_MASK)
+
+#define HCI_FEATURE_EDR_ACL_3MPS_MASK   0x04
+#define HCI_FEATURE_EDR_ACL_3MPS_OFF    3
+#define HCI_EDR_ACL_3MPS_SUPPORTED(x)   ((x)[HCI_FEATURE_EDR_ACL_3MPS_OFF] & HCI_FEATURE_EDR_ACL_3MPS_MASK)
+
+#define HCI_FEATURE_ENHANCED_INQ_MASK   0x08
+#define HCI_FEATURE_ENHANCED_INQ_OFF    3
+#define HCI_ENHANCED_INQ_SUPPORTED(x)   ((x)[HCI_FEATURE_ENHANCED_INQ_OFF] & HCI_FEATURE_ENHANCED_INQ_MASK)
+
+#define HCI_FEATURE_INTERLACED_INQ_SCAN_MASK   0x10
+#define HCI_FEATURE_INTERLACED_INQ_SCAN_OFF    3
+#define HCI_LMP_INTERLACED_INQ_SCAN_SUPPORTED(x) ((x)[HCI_FEATURE_INTERLACED_INQ_SCAN_OFF] & HCI_FEATURE_INTERLACED_INQ_SCAN_MASK)
+
+#define HCI_FEATURE_INTERLACED_PAGE_SCAN_MASK  0x20
+#define HCI_FEATURE_INTERLACED_PAGE_SCAN_OFF   3
+#define HCI_LMP_INTERLACED_PAGE_SCAN_SUPPORTED(x) ((x)[HCI_FEATURE_INTERLACED_PAGE_SCAN_OFF] & HCI_FEATURE_INTERLACED_PAGE_SCAN_MASK)
+
+#define HCI_FEATURE_INQ_RSSI_MASK       0x40
+#define HCI_FEATURE_INQ_RSSI_OFF        3
+#define HCI_LMP_INQ_RSSI_SUPPORTED(x)   ((x)[HCI_FEATURE_INQ_RSSI_OFF] & HCI_FEATURE_INQ_RSSI_MASK)
+
+#define HCI_FEATURE_ESCO_EV3_MASK       0x80
+#define HCI_FEATURE_ESCO_EV3_OFF        3
+#define HCI_ESCO_EV3_SUPPORTED(x)       ((x)[HCI_FEATURE_ESCO_EV3_OFF] & HCI_FEATURE_ESCO_EV3_MASK)
+
+#define HCI_FEATURE_ESCO_EV4_MASK       0x01
+#define HCI_FEATURE_ESCO_EV4_OFF        4
+#define HCI_ESCO_EV4_SUPPORTED(x)       ((x)[HCI_FEATURE_ESCO_EV4_OFF] & HCI_FEATURE_ESCO_EV4_MASK)
+
+#define HCI_FEATURE_ESCO_EV5_MASK       0x02
+#define HCI_FEATURE_ESCO_EV5_OFF        4
+#define HCI_ESCO_EV5_SUPPORTED(x)       ((x)[HCI_FEATURE_ESCO_EV5_OFF] & HCI_FEATURE_ESCO_EV5_MASK)
+
+#define HCI_FEATURE_ABSENCE_MASKS_MASK  0x04
+#define HCI_FEATURE_ABSENCE_MASKS_OFF   4
+#define HCI_LMP_ABSENCE_MASKS_SUPPORTED(x) ((x)[HCI_FEATURE_ABSENCE_MASKS_OFF] & HCI_FEATURE_ABSENCE_MASKS_MASK)
+
+#define HCI_FEATURE_AFH_CAP_SLAVE_MASK  0x08
+#define HCI_FEATURE_AFH_CAP_SLAVE_OFF   4
+#define HCI_LMP_AFH_CAP_SLAVE_SUPPORTED(x) ((x)[HCI_FEATURE_AFH_CAP_SLAVE_OFF] & HCI_FEATURE_AFH_CAP_SLAVE_MASK)
+
+#define HCI_FEATURE_AFH_CLASS_SLAVE_MASK 0x10
+#define HCI_FEATURE_AFH_CLASS_SLAVE_OFF  4
+#define HCI_LMP_AFH_CLASS_SLAVE_SUPPORTED(x) ((x)[HCI_FEATURE_AFH_CLASS_SLAVE_OFF] & HCI_FEATURE_AFH_CLASS_SLAVE_MASK)
+
+#if 1
+#define HCI_FEATURE_BREDR_NOT_SPT_MASK     0x20
+#define HCI_FEATURE_BREDR_NOT_SPT_OFF      4
+#define HCI_BREDR_NOT_SPT_SUPPORTED(x) ((x)[HCI_FEATURE_BREDR_NOT_SPT_OFF] & HCI_FEATURE_BREDR_NOT_SPT_MASK)
+
+#define HCI_FEATURE_LE_SPT_MASK      0x40
+#define HCI_FEATURE_LE_SPT_OFF       4
+#define HCI_LE_SPT_SUPPORTED(x)  ((x)[HCI_FEATURE_LE_SPT_OFF] & HCI_FEATURE_LE_SPT_MASK)
+#else
+
+#define HCI_FEATURE_ALIAS_AUTH_MASK     0x20
+#define HCI_FEATURE_ALIAS_AUTH_OFF      4
+#define HCI_LMP_ALIAS_AUTH_SUPPORTED(x) ((x)[HCI_FEATURE_ALIAS_AUTH_OFF] & HCI_FEATURE_ALIAS_AUTH_MASK)
+
+#define HCI_FEATURE_ANON_MODE_MASK      0x40
+#define HCI_FEATURE_ANON_MODE_OFF       4
+#define HCI_LMP_ANON_MODE_SUPPORTED(x)  ((x)[HCI_FEATURE_ANON_MODE_OFF] & HCI_FEATURE_ANON_MODE_MASK)
+#endif
+
+#define HCI_FEATURE_3_SLOT_EDR_ACL_MASK 0x80
+#define HCI_FEATURE_3_SLOT_EDR_ACL_OFF  4
+#define HCI_3_SLOT_EDR_ACL_SUPPORTED(x) ((x)[HCI_FEATURE_3_SLOT_EDR_ACL_OFF] & HCI_FEATURE_3_SLOT_EDR_ACL_MASK)
+
+#define HCI_FEATURE_5_SLOT_EDR_ACL_MASK 0x01
+#define HCI_FEATURE_5_SLOT_EDR_ACL_OFF  5
+#define HCI_5_SLOT_EDR_ACL_SUPPORTED(x) ((x)[HCI_FEATURE_5_SLOT_EDR_ACL_OFF] & HCI_FEATURE_5_SLOT_EDR_ACL_MASK)
+
+#define HCI_FEATURE_SNIFF_SUB_RATE_MASK 0x02
+#define HCI_FEATURE_SNIFF_SUB_RATE_OFF  5
+#define HCI_SNIFF_SUB_RATE_SUPPORTED(x) ((x)[HCI_FEATURE_SNIFF_SUB_RATE_OFF] & HCI_FEATURE_SNIFF_SUB_RATE_MASK)
+
+#define HCI_FEATURE_ATOMIC_ENCRYPT_MASK 0x04
+#define HCI_FEATURE_ATOMIC_ENCRYPT_OFF  5
+#define HCI_ATOMIC_ENCRYPT_SUPPORTED(x) ((x)[HCI_FEATURE_ATOMIC_ENCRYPT_OFF] & HCI_FEATURE_ATOMIC_ENCRYPT_MASK)
+
+#define HCI_FEATURE_AFH_CAP_MASTR_MASK  0x08
+#define HCI_FEATURE_AFH_CAP_MASTR_OFF   5
+#define HCI_LMP_AFH_CAP_MASTR_SUPPORTED(x) ((x)[HCI_FEATURE_AFH_CAP_MASTR_OFF] & HCI_FEATURE_AFH_CAP_MASTR_MASK)
+
+#define HCI_FEATURE_AFH_CLASS_MASTR_MASK 0x10
+#define HCI_FEATURE_AFH_CLASS_MASTR_OFF  5
+#define HCI_LMP_AFH_CLASS_MASTR_SUPPORTED(x) ((x)[HCI_FEATURE_AFH_CLASS_MASTR_OFF] & HCI_FEATURE_AFH_CLASS_MASTR_MASK)
+
+#define HCI_FEATURE_EDR_ESCO_2MPS_MASK  0x20
+#define HCI_FEATURE_EDR_ESCO_2MPS_OFF   5
+#define HCI_EDR_ESCO_2MPS_SUPPORTED(x)  ((x)[HCI_FEATURE_EDR_ESCO_2MPS_OFF] & HCI_FEATURE_EDR_ESCO_2MPS_MASK)
+
+#define HCI_FEATURE_EDR_ESCO_3MPS_MASK  0x40
+#define HCI_FEATURE_EDR_ESCO_3MPS_OFF   5
+#define HCI_EDR_ESCO_3MPS_SUPPORTED(x)  ((x)[HCI_FEATURE_EDR_ESCO_3MPS_OFF] & HCI_FEATURE_EDR_ESCO_3MPS_MASK)
+
+#define HCI_FEATURE_3_SLOT_EDR_ESCO_MASK 0x80
+#define HCI_FEATURE_3_SLOT_EDR_ESCO_OFF  5
+#define HCI_3_SLOT_EDR_ESCO_SUPPORTED(x) ((x)[HCI_FEATURE_3_SLOT_EDR_ESCO_OFF] & HCI_FEATURE_3_SLOT_EDR_ESCO_MASK)
+
+#define HCI_FEATURE_EXT_INQ_RSP_MASK    0x01
+#define HCI_FEATURE_EXT_INQ_RSP_OFF     6
+#define HCI_EXT_INQ_RSP_SUPPORTED(x)    ((x)[HCI_FEATURE_EXT_INQ_RSP_OFF] & HCI_FEATURE_EXT_INQ_RSP_MASK)
+
+#if 1 /* TOKYO spec definition */
+#define HCI_FEATURE_SIMUL_LE_BREDR_MASK 0x02
+#define HCI_FEATURE_SIMUL_LE_BREDR_OFF  6
+#define HCI_SIMUL_LE_BREDR_SUPPORTED(x) ((x)[HCI_FEATURE_SIMUL_LE_BREDR_OFF] & HCI_FEATURE_SIMUL_LE_BREDR_MASK)
+
+#else
+#define HCI_FEATURE_ANUM_PIN_AWARE_MASK 0x02
+#define HCI_FEATURE_ANUM_PIN_AWARE_OFF  6
+#define HCI_ANUM_PIN_AWARE_SUPPORTED(x) ((x)[HCI_FEATURE_ANUM_PIN_AWARE_OFF] & HCI_FEATURE_ANUM_PIN_AWARE_MASK)
+#endif
+
+#define HCI_FEATURE_ANUM_PIN_CAP_MASK   0x04
+#define HCI_FEATURE_ANUM_PIN_CAP_OFF    6
+#define HCI_ANUM_PIN_CAP_SUPPORTED(x)   ((x)[HCI_FEATURE_ANUM_PIN_CAP_OFF] & HCI_FEATURE_ANUM_PIN_CAP_MASK)
+
+#define HCI_FEATURE_SIMPLE_PAIRING_MASK 0x08
+#define HCI_FEATURE_SIMPLE_PAIRING_OFF  6
+#define HCI_SIMPLE_PAIRING_SUPPORTED(x) ((x)[HCI_FEATURE_SIMPLE_PAIRING_OFF] & HCI_FEATURE_SIMPLE_PAIRING_MASK)
+
+#define HCI_FEATURE_ENCAP_PDU_MASK      0x10
+#define HCI_FEATURE_ENCAP_PDU_OFF       6
+#define HCI_ENCAP_PDU_SUPPORTED(x)      ((x)[HCI_FEATURE_ENCAP_PDU_OFF] & HCI_FEATURE_ENCAP_PDU_MASK)
+
+#define HCI_FEATURE_ERROR_DATA_MASK     0x20
+#define HCI_FEATURE_ERROR_DATA_OFF      6
+#define HCI_ERROR_DATA_SUPPORTED(x)     ((x)[HCI_FEATURE_ERROR_DATA_OFF] & HCI_FEATURE_ERROR_DATA_MASK)
+
+#define HCI_FEATURE_NON_FLUSHABLE_PB_MASK      0x40
+#define HCI_FEATURE_NON_FLUSHABLE_PB_OFF       6
+
+/* This feature is causing frequent link drops when doing call switch with certain av/hfp headsets */
+#define HCI_NON_FLUSHABLE_PB_SUPPORTED(x)      (0)//((x)[HCI_FEATURE_NON_FLUSHABLE_PB_OFF] & HCI_FEATURE_NON_FLUSHABLE_PB_MASK)
+
+#define HCI_FEATURE_LINK_SUP_TO_EVT_MASK 0x01
+#define HCI_FEATURE_LINK_SUP_TO_EVT_OFF  7
+#define HCI_LINK_SUP_TO_EVT_SUPPORTED(x) ((x)[HCI_FEATURE_LINK_SUP_TO_EVT_OFF] & HCI_FEATURE_LINK_SUP_TO_EVT_MASK)
+
+#define HCI_FEATURE_INQ_RESP_TX_MASK     0x02
+#define HCI_FEATURE_INQ_RESP_TX_OFF      7
+#define HCI_INQ_RESP_TX_SUPPORTED(x)     ((x)[HCI_FEATURE_INQ_RESP_TX_OFF] & HCI_FEATURE_INQ_RESP_TX_MASK)
+
+#define HCI_FEATURE_EXTENDED_MASK       0x80
+#define HCI_FEATURE_EXTENDED_OFF        7
+#define HCI_LMP_EXTENDED_SUPPORTED(x)   ((x)[HCI_FEATURE_EXTENDED_OFF] & HCI_FEATURE_EXTENDED_MASK)
+
+/*
+**   LMP features encoding - page 1
+*/
+#define HCI_EXT_FEATURE_SSP_HOST_MASK 0x01
+#define HCI_EXT_FEATURE_SSP_HOST_OFF  0
+#define HCI_SSP_HOST_SUPPORTED(x) ((x)[HCI_EXT_FEATURE_SSP_HOST_OFF] & HCI_EXT_FEATURE_SSP_HOST_MASK)
+
+#define HCI_EXT_FEATURE_LE_HOST_MASK 0x02
+#define HCI_EXT_FEATURE_LE_HOST_OFF  0
+#define HCI_LE_HOST_SUPPORTED(x) ((x)[HCI_EXT_FEATURE_LE_HOST_OFF] & HCI_EXT_FEATURE_LE_HOST_MASK)
+
+#define HCI_EXT_FEATURE_SIMUL_DUMO_HOST_MASK 0x04
+#define HCI_EXT_FEATURE_SIMUL_DUMO_HOST_OFF  0
+#define HCI_SIMUL_DUMO_HOST_SUPPORTED(x) ((x)[HCI_EXT_FEATURE_SIMUL_DUMO_HOST_OFF] & HCI_EXT_FEATURE_SIMUL_DUMO_HOST_MASK)
+
+#define HCI_EXT_FEATURE_SC_HOST_MASK 0x08
+#define HCI_EXT_FEATURE_SC_HOST_OFF  0
+#define HCI_SC_HOST_SUPPORTED(x) ((x)[HCI_EXT_FEATURE_SC_HOST_OFF] & HCI_EXT_FEATURE_SC_HOST_MASK)
+
+/*
+**   LMP features encoding - page 2
+*/
+#define HCI_EXT_FEATURE_CSB_MASTER_MASK         0x01
+#define HCI_EXT_FEATURE_CSB_MASTER_OFF          0
+#define HCI_CSB_MASTER_SUPPORTED(x) ((x)[HCI_EXT_FEATURE_CSB_MASTER_OFF] & HCI_EXT_FEATURE_CSB_MASTER_MASK)
+
+#define HCI_EXT_FEATURE_CSB_SLAVE_MASK          0x02
+#define HCI_EXT_FEATURE_CSB_SLAVE_OFF           0
+#define HCI_CSB_SLAVE_SUPPORTED(x) ((x)[HCI_EXT_FEATURE_CSB_SLAVE_OFF] & HCI_EXT_FEATURE_CSB_SLAVE_MASK)
+
+#define HCI_EXT_FEATURE_SYNC_TRAIN_MASTER_MASK  0x04
+#define HCI_EXT_FEATURE_SYNC_TRAIN_MASTER_OFF   0
+#define HCI_SYNC_TRAIN_MASTER_SUPPORTED(x) ((x)[HCI_EXT_FEATURE_SYNC_TRAIN_MASTER_OFF] & HCI_EXT_FEATURE_SYNC_TRAIN_MASTER_MASK)
+
+#define HCI_EXT_FEATURE_SYNC_SCAN_SLAVE_MASK    0x08
+#define HCI_EXT_FEATURE_SYNC_SCAN_SLAVE_OFF     0
+#define HCI_SYNC_SCAN_SLAVE_SUPPORTED(x) ((x)[HCI_EXT_FEATURE_SYNC_SCAN_SLAVE_OFF] & HCI_EXT_FEATURE_SYNC_SCAN_SLAVE_MASK)
+
+#define HCI_EXT_FEATURE_INQ_RESP_NOTIF_MASK     0x10
+#define HCI_EXT_FEATURE_INQ_RESP_NOTIF_OFF      0
+#define HCI_INQ_RESP_NOTIF_SUPPORTED(x) ((x)[HCI_EXT_FEATURE_INQ_RESP_NOTIF_OFF] & HCI_EXT_FEATURE_INQ_RESP_NOTIF_MASK)
+
+#define HCI_EXT_FEATURE_SC_CTRLR_MASK           0x01
+#define HCI_EXT_FEATURE_SC_CTRLR_OFF            1
+#define HCI_SC_CTRLR_SUPPORTED(x) ((x)[HCI_EXT_FEATURE_SC_CTRLR_OFF] & HCI_EXT_FEATURE_SC_CTRLR_MASK)
+
+#define HCI_EXT_FEATURE_PING_MASK               0x02
+#define HCI_EXT_FEATURE_PING_OFF                1
+#define HCI_PING_SUPPORTED(x) ((x)[HCI_EXT_FEATURE_PING_OFF] & HCI_EXT_FEATURE_PING_MASK)
+
+/*
+**   LE features encoding - page 0 (the only page for now)
+*/
+/* LE Encryption */
+#define HCI_LE_FEATURE_LE_ENCRYPTION_MASK       0x01
+#define HCI_LE_FEATURE_LE_ENCRYPTION_OFF        0
+#define HCI_LE_ENCRYPTION_SUPPORTED(x) ((x)[HCI_LE_FEATURE_LE_ENCRYPTION_OFF] & HCI_LE_FEATURE_LE_ENCRYPTION_MASK)
+
+/* Connection Parameters Request Procedure */
+#define HCI_LE_FEATURE_CONN_PARAM_REQ_MASK       0x02
+#define HCI_LE_FEATURE_CONN_PARAM_REQ_OFF        0
+#define HCI_LE_CONN_PARAM_REQ_SUPPORTED(x) ((x)[HCI_LE_FEATURE_CONN_PARAM_REQ_OFF] & HCI_LE_FEATURE_CONN_PARAM_REQ_MASK)
+
+/* Extended Reject Indication */
+#define HCI_LE_FEATURE_EXT_REJ_IND_MASK       0x04
+#define HCI_LE_FEATURE_EXT_REJ_IND_OFF        0
+#define HCI_LE_EXT_REJ_IND_SUPPORTED(x) ((x)[HCI_LE_FEATURE_EXT_REJ_IND_OFF] & HCI_LE_FEATURE_EXT_REJ_IND_MASK)
+
+/* Slave-initiated Features Exchange */
+#define HCI_LE_FEATURE_SLAVE_INIT_FEAT_EXC_MASK       0x08
+#define HCI_LE_FEATURE_SLAVE_INIT_FEAT_EXC_OFF        0
+#define HCI_LE_SLAVE_INIT_FEAT_EXC_SUPPORTED(x) ((x)[HCI_LE_FEATURE_SLAVE_INIT_FEAT_EXC_OFF] & HCI_LE_FEATURE_SLAVE_INIT_FEAT_EXC_MASK)
+
+/* Enhanced privacy Feature: bit 6 */
+#define HCI_LE_FEATURE_ENHANCED_PRIVACY_MASK       0x40
+#define HCI_LE_FEATURE_ENHANCED_PRIVACY_OFF        0
+#define HCI_LE_ENHANCED_PRIVACY_SUPPORTED(x) ((x)[HCI_LE_FEATURE_ENHANCED_PRIVACY_OFF] & HCI_LE_FEATURE_ENHANCED_PRIVACY_MASK)
+
+/* Extended scanner filter policy : 7 */
+#define HCI_LE_FEATURE_EXT_SCAN_FILTER_POLICY_MASK       0x80
+#define HCI_LE_FEATURE_EXT_SCAN_FILTER_POLICY_OFF        0
+#define HCI_LE_EXT_SCAN_FILTER_POLICY_SUPPORTED(x) ((x)[HCI_LE_FEATURE_EXT_SCAN_FILTER_POLICY_OFF] & HCI_LE_FEATURE_EXT_SCAN_FILTER_POLICY_MASK)
+
+/* Slave-initiated Features Exchange */
+#define HCI_LE_FEATURE_DATA_LEN_EXT_MASK       0x20
+#define HCI_LE_FEATURE_DATA_LEN_EXT_OFF        0
+#define HCI_LE_DATA_LEN_EXT_SUPPORTED(x) ((x)[HCI_LE_FEATURE_DATA_LEN_EXT_OFF] & HCI_LE_FEATURE_DATA_LEN_EXT_MASK)
+
+/*
+**   Local Supported Commands encoding
+*/
+#define HCI_NUM_SUPP_COMMANDS_BYTES           64
+
+/* Supported Commands Byte 0 */
+#define HCI_SUPP_COMMANDS_INQUIRY_MASK 0x01
+#define HCI_SUPP_COMMANDS_INQUIRY_OFF  0
+#define HCI_INQUIRY_SUPPORTED(x) ((x)[HCI_SUPP_COMMANDS_INQUIRY_OFF] & HCI_SUPP_COMMANDS_INQUIRY_MASK)
+
+#define HCI_SUPP_COMMANDS_INQUIRY_CANCEL_MASK 0x02
+#define HCI_SUPP_COMMANDS_INQUIRY_CANCEL_OFF  0
+#define HCI_INQUIRY_CANCEL_SUPPORTED(x) ((x)[HCI_SUPP_COMMANDS_INQUIRY_CANCEL_OFF] & HCI_SUPP_COMMANDS_INQUIRY_CANCEL_MASK)
+
+#define HCI_SUPP_COMMANDS_PERIODIC_INQUIRY_MASK     0x04
+#define HCI_SUPP_COMMANDS_PERIODIC_INQUIRY_OFF      0
+#define HCI_PERIODIC_INQUIRY_SUPPORTED(x)     ((x)[HCI_SUPP_COMMANDS_PERIODIC_INQUIRY_OFF] & HCI_SUPP_COMMANDS_PERIODIC_INQUIRY_MASK)
+
+#define HCI_SUPP_COMMANDS_EXIT_PERIODIC_INQUIRY_MASK    0x08
+#define HCI_SUPP_COMMANDS_EXIT_PERIODIC_INQUIRY_OFF     0
+#define HCI_EXIT_PERIODIC_INQUIRY_SUPPORTED(x)    ((x)[HCI_SUPP_COMMANDS_EXIT_PERIODIC_INQUIRY_OFF] & HCI_SUPP_COMMANDS_EXIT_PERIODIC_INQUIRY_MASK)
+
+#define HCI_SUPP_COMMANDS_CREATE_CONN_MASK     0x10
+#define HCI_SUPP_COMMANDS_CREATE_CONN_OFF      0
+#define HCI_CREATE_CONN_SUPPORTED(x)     ((x)[HCI_SUPP_COMMANDS_CREATE_CONN_OFF] & HCI_SUPP_COMMANDS_CREATE_CONN_MASK)
+
+#define HCI_SUPP_COMMANDS_DISCONNECT_MASK         0x20
+#define HCI_SUPP_COMMANDS_DISCONNECT_OFF          0
+#define HCI_DISCONNECT_SUPPORTED(x)         ((x)[HCI_SUPP_COMMANDS_DISCONNECT_OFF] & HCI_SUPP_COMMANDS_DISCONNECT_MASK)
+
+#define HCI_SUPP_COMMANDS_ADD_SCO_CONN_MASK      0x40
+#define HCI_SUPP_COMMANDS_ADD_SCO_CONN_OFF       0
+#define HCI_ADD_SCO_CONN_SUPPORTED(x)      ((x)[HCI_SUPP_COMMANDS_ADD_SCO_CONN_OFF] & HCI_SUPP_COMMANDS_ADD_SCO_CONN_MASK)
+
+#define HCI_SUPP_COMMANDS_CANCEL_CREATE_CONN_MASK     0x80
+#define HCI_SUPP_COMMANDS_CANCEL_CREATE_CONN_OFF      0
+#define HCI_CANCEL_CREATE_CONN_SUPPORTED(x)      ((x)[HCI_SUPP_COMMANDS_CANCEL_CREATE_CONN_OFF] & HCI_SUPP_COMMANDS_CANCEL_CREATE_CONN_MASK)
+
+#define HCI_SUPP_COMMANDS_ACCEPT_CONN_REQUEST_MASK      0x01
+#define HCI_SUPP_COMMANDS_ACCEPT_CONN_REQUEST_OFF       1
+#define HCI_ACCEPT_CONN_REQUEST_SUPPORTED(x)      ((x)[HCI_SUPP_COMMANDS_ACCEPT_CONN_REQUEST_OFF] & HCI_SUPP_COMMANDS_ACCEPT_CONN_REQUEST_MASK)
+
+#define HCI_SUPP_COMMANDS_REJECT_CONN_REQUEST_MASK           0x02
+#define HCI_SUPP_COMMANDS_REJECT_CONN_REQUEST_OFF            1
+#define HCI_REJECT_CONN_REQUEST_SUPPORTED(x)           ((x)[HCI_SUPP_COMMANDS_REJECT_CONN_REQUEST_OFF] & HCI_SUPP_COMMANDS_REJECT_CONN_REQUEST_MASK)
+
+#define HCI_SUPP_COMMANDS_LINK_KEY_REQUEST_REPLY_MASK  0x04
+#define HCI_SUPP_COMMANDS_LINK_KEY_REQUEST_REPLY_OFF   1
+#define HCI_LINK_KEY_REQUEST_REPLY_SUPPORTED(x)  ((x)[HCI_SUPP_COMMANDS_LINK_KEY_REQUEST_REPLY_OFF] & HCI_SUPP_COMMANDS_LINK_KEY_REQUEST_REPLY_MASK)
+
+#define HCI_SUPP_COMMANDS_LINK_KEY_REQUEST_NEG_REPLY_MASK       0x08
+#define HCI_SUPP_COMMANDS_LINK_KEY_REQUEST_NEG_REPLY_OFF        1
+#define HCI_LINK_KEY_REQUEST_NEG_REPLY_SUPPORTED(x)       ((x)[HCI_SUPP_COMMANDS_LINK_KEY_REQUEST_NEG_REPLY_OFF] & HCI_SUPP_COMMANDS_LINK_KEY_REQUEST_NEG_REPLY_MASK)
+
+#define HCI_SUPP_COMMANDS_PIN_CODE_REQUEST_REPLY_MASK    0x10
+#define HCI_SUPP_COMMANDS_PIN_CODE_REQUEST_REPLY_OFF     1
+#define HCI_PIN_CODE_REQUEST_REPLY_SUPPORTED(x)    ((x)[HCI_SUPP_COMMANDS_PIN_CODE_REQUEST_REPLY_OFF] & HCI_SUPP_COMMANDS_PIN_CODE_REQUEST_REPLY_MASK)
+
+#define HCI_SUPP_COMMANDS_PIN_CODE_REQUEST_NEG_REPLY_MASK    0x20
+#define HCI_SUPP_COMMANDS_PIN_CODE_REQUEST_NEG_REPLY_OFF     1
+#define HCI_PIN_CODE_REQUEST_NEG_REPLY_SUPPORTED(x)    ((x)[HCI_SUPP_COMMANDS_PIN_CODE_REQUEST_NEG_REPLY_OFF] & HCI_SUPP_COMMANDS_PIN_CODE_REQUEST_NEG_REPLY_MASK)
+
+#define HCI_SUPP_COMMANDS_CHANGE_CONN_PKT_TYPE_MASK          0x40
+#define HCI_SUPP_COMMANDS_CHANGE_CONN_PKT_TYPE_OFF           1
+#define HCI_CHANGE_CONN_PKT_TYPE_SUPPORTED(x)      ((x)[HCI_SUPP_COMMANDS_CHANGE_CONN_PKT_TYPE_OFF] & HCI_SUPP_COMMANDS_CHANGE_CONN_PKT_TYPE_MASK)
+
+#define HCI_SUPP_COMMANDS_AUTH_REQUEST_MASK          0x80
+#define HCI_SUPP_COMMANDS_AUTH_REQUEST_OFF           1
+#define HCI_AUTH_REQUEST_SUPPORTED(x)      ((x)[HCI_SUPP_COMMANDS_AUTH_REQUEST_OFF] & HCI_SUPP_COMMANDS_AUTH_REQUEST_MASK)
+
+#define HCI_SUPP_COMMANDS_SET_CONN_ENCRYPTION_MASK      0x01
+#define HCI_SUPP_COMMANDS_SET_CONN_ENCRYPTION_OFF       2
+#define HCI_SET_CONN_ENCRYPTION_SUPPORTED(x)      ((x)[HCI_SUPP_COMMANDS_SET_CONN_ENCRYPTION_OFF] & HCI_SUPP_COMMANDS_SET_CONN_ENCRYPTION_MASK)
+
+#define HCI_SUPP_COMMANDS_CHANGE_CONN_LINK_KEY_MASK           0x02
+#define HCI_SUPP_COMMANDS_CHANGE_CONN_LINK_KEY_OFF            2
+#define HCI_CHANGE_CONN_LINK_KEY_SUPPORTED(x)           ((x)[HCI_SUPP_COMMANDS_CHANGE_CONN_LINK_KEY_OFF] & HCI_SUPP_COMMANDS_CHANGE_CONN_LINK_KEY_MASK)
+
+#define HCI_SUPP_COMMANDS_MASTER_LINK_KEY_MASK  0x04
+#define HCI_SUPP_COMMANDS_MASTER_LINK_KEY_OFF   2
+#define HCI_MASTER_LINK_KEY_SUPPORTED(x)  ((x)[HCI_SUPP_COMMANDS_MASTER_LINK_KEY_OFF] & HCI_SUPP_COMMANDS_MASTER_LINK_KEY_MASK)
+
+#define HCI_SUPP_COMMANDS_REMOTE_NAME_REQUEST_MASK       0x08
+#define HCI_SUPP_COMMANDS_REMOTE_NAME_REQUEST_OFF        2
+#define HCI_REMOTE_NAME_REQUEST_SUPPORTED(x)       ((x)[HCI_SUPP_COMMANDS_REMOTE_NAME_REQUEST_OFF] & HCI_SUPP_COMMANDS_REMOTE_NAME_REQUEST_MASK)
+
+#define HCI_SUPP_COMMANDS_CANCEL_REMOTE_NAME_REQUEST_MASK    0x10
+#define HCI_SUPP_COMMANDS_CANCEL_REMOTE_NAME_REQUEST_OFF     2
+#define HCI_CANCEL_REMOTE_NAME_REQUEST_SUPPORTED(x)    ((x)[HCI_SUPP_COMMANDS_CANCEL_REMOTE_NAME_REQUEST_OFF] & HCI_SUPP_COMMANDS_CANCEL_REMOTE_NAME_REQUEST_MASK)
+
+#define HCI_SUPP_COMMANDS_READ_REMOTE_SUPP_FEATURES_MASK    0x20
+#define HCI_SUPP_COMMANDS_READ_REMOTE_SUPP_FEATURES_OFF     2
+#define HCI_READ_REMOTE_SUPP_FEATURES_SUPPORTED(x)    ((x)[HCI_SUPP_COMMANDS_READ_REMOTE_SUPP_FEATURES_OFF] & HCI_SUPP_COMMANDS_READ_REMOTE_SUPP_FEATURES_MASK)
+
+#define HCI_SUPP_COMMANDS_READ_REMOTE_EXT_FEATURES_MASK          0x40
+#define HCI_SUPP_COMMANDS_READ_REMOTE_EXT_FEATURES_OFF           2
+#define HCI_READ_REMOTE_EXT_FEATURES_SUPPORTED(x)      ((x)[HCI_SUPP_COMMANDS_READ_REMOTE_EXT_FEATURES_OFF] & HCI_SUPP_COMMANDS_READ_REMOTE_EXT_FEATURES_MASK)
+
+#define HCI_SUPP_COMMANDS_READ_REMOTE_VER_INFO_MASK          0x80
+#define HCI_SUPP_COMMANDS_READ_REMOTE_VER_INFO_OFF           2
+#define HCI_READ_REMOTE_VER_INFO_SUPPORTED(x)      ((x)[HCI_SUPP_COMMANDS_READ_REMOTE_VER_INFO_OFF] & HCI_SUPP_COMMANDS_READ_REMOTE_VER_INFO_MASK)
+
+#define HCI_SUPP_COMMANDS_READ_CLOCK_OFFSET_MASK           0x01
+#define HCI_SUPP_COMMANDS_READ_CLOCK_OFFSET_OFF            3
+#define HCI_READ_CLOCK_OFFSET_SUPPORTED(x)       ((x)[HCI_SUPP_COMMANDS_READ_CLOCK_OFFSET_OFF] & HCI_SUPP_COMMANDS_READ_CLOCK_OFFSET_MASK)
+
+#define HCI_SUPP_COMMANDS_READ_LMP_HANDLE_MASK  0x02
+#define HCI_SUPP_COMMANDS_READ_LMP_HANDLE_OFF   3
+#define HCI_READ_LMP_HANDLE_SUPPORTED(x) ((x)[HCI_SUPP_COMMANDS_READ_LMP_HANDLE_OFF] & HCI_SUPP_COMMANDS_READ_LMP_HANDLE_MASK)
+
+#define HCI_SUPP_COMMANDS_HOLD_MODE_CMD_MASK           0x02
+#define HCI_SUPP_COMMANDS_HOLD_MODE_CMD_OFF            4
+#define HCI_HOLD_MODE_CMD_SUPPORTED(x)           ((x)[HCI_SUPP_COMMANDS_HOLD_MODE_CMD_OFF] & HCI_SUPP_COMMANDS_HOLD_MODE_CMD_MASK)
+
+#define HCI_SUPP_COMMANDS_SNIFF_MODE_CMD_MASK  0x04
+#define HCI_SUPP_COMMANDS_SNIFF_MODE_CMD_OFF   4
+#define HCI_SNIFF_MODE_CMD_SUPPORTED(x)  ((x)[HCI_SUPP_COMMANDS_SNIFF_MODE_CMD_OFF] & HCI_SUPP_COMMANDS_SNIFF_MODE_CMD_MASK)
+
+#define HCI_SUPP_COMMANDS_EXIT_SNIFF_MODE_MASK       0x08
+#define HCI_SUPP_COMMANDS_EXIT_SNIFF_MODE_OFF        4
+#define HCI_EXIT_SNIFF_MODE_SUPPORTED(x)       ((x)[HCI_SUPP_COMMANDS_EXIT_SNIFF_MODE_OFF] & HCI_SUPP_COMMANDS_EXIT_SNIFF_MODE_MASK)
+
+#define HCI_SUPP_COMMANDS_PARK_STATE_MASK    0x10
+#define HCI_SUPP_COMMANDS_PARK_STATE_OFF     4
+#define HCI_PARK_STATE_SUPPORTED(x)    ((x)[HCI_SUPP_COMMANDS_PARK_STATE_OFF] & HCI_SUPP_COMMANDS_PARK_STATE_MASK)
+
+#define HCI_SUPP_COMMANDS_EXIT_PARK_STATE_MASK    0x20
+#define HCI_SUPP_COMMANDS_EXIT_PARK_STATE_OFF     4
+#define HCI_EXIT_PARK_STATE_SUPPORTED(x)    ((x)[HCI_SUPP_COMMANDS_EXIT_PARK_STATE_OFF] & HCI_SUPP_COMMANDS_EXIT_PARK_STATE_MASK)
+
+#define HCI_SUPP_COMMANDS_QOS_SETUP_MASK          0x40
+#define HCI_SUPP_COMMANDS_QOS_SETUP_OFF           4
+#define HCI_QOS_SETUP_SUPPORTED(x)      ((x)[HCI_SUPP_COMMANDS_QOS_SETUP_OFF] & HCI_SUPP_COMMANDS_QOS_SETUP_MASK)
+
+#define HCI_SUPP_COMMANDS_ROLE_DISCOVERY_MASK          0x80
+#define HCI_SUPP_COMMANDS_ROLE_DISCOVERY_OFF           4
+#define HCI_ROLE_DISCOVERY_SUPPORTED(x)      ((x)[HCI_SUPP_COMMANDS_ROLE_DISCOVERY_OFF] & HCI_SUPP_COMMANDS_ROLE_DISCOVERY_MASK)
+
+#define HCI_SUPP_COMMANDS_SWITCH_ROLE_MASK      0x01
+#define HCI_SUPP_COMMANDS_SWITCH_ROLE_OFF       5
+#define HCI_SWITCH_ROLE_SUPPORTED(x)      ((x)[HCI_SUPP_COMMANDS_SWITCH_ROLE_OFF] & HCI_SUPP_COMMANDS_SWITCH_ROLE_MASK)
+
+#define HCI_SUPP_COMMANDS_READ_LINK_POLICY_SET_MASK           0x02
+#define HCI_SUPP_COMMANDS_READ_LINK_POLICY_SET_OFF            5
+#define HCI_READ_LINK_POLICY_SET_SUPPORTED(x)           ((x)[HCI_SUPP_COMMANDS_READ_LINK_POLICY_SET_OFF] & HCI_SUPP_COMMANDS_READ_LINK_POLICY_SET_MASK)
+
+#define HCI_SUPP_COMMANDS_WRITE_LINK_POLICY_SET_MASK  0x04
+#define HCI_SUPP_COMMANDS_WRITE_LINK_POLICY_SET_OFF   5
+#define HCI_WRITE_LINK_POLICY_SET_SUPPORTED(x)  ((x)[HCI_SUPP_COMMANDS_WRITE_LINK_POLICY_SET_OFF] & HCI_SUPP_COMMANDS_WRITE_LINK_POLICY_SET_MASK)
+
+#define HCI_SUPP_COMMANDS_READ_DEF_LINK_POLICY_SET_MASK       0x08
+#define HCI_SUPP_COMMANDS_READ_DEF_LINK_POLICY_SET_OFF        5
+#define HCI_READ_DEF_LINK_POLICY_SET_SUPPORTED(x)       ((x)[HCI_SUPP_COMMANDS_READ_DEF_LINK_POLICY_SET_OFF] & HCI_SUPP_COMMANDS_READ_DEF_LINK_POLICY_SET_MASK)
+
+#define HCI_SUPP_COMMANDS_WRITE_DEF_LINK_POLICY_SET_MASK    0x10
+#define HCI_SUPP_COMMANDS_WRITE_DEF_LINK_POLICY_SET_OFF     5
+#define HCI_WRITE_DEF_LINK_POLICY_SET_SUPPORTED(x)    ((x)[HCI_SUPP_COMMANDS_WRITE_DEF_LINK_POLICY_SET_OFF] & HCI_SUPP_COMMANDS_WRITE_DEF_LINK_POLICY_SET_MASK)
+
+#define HCI_SUPP_COMMANDS_FLOW_SPECIFICATION_MASK    0x20
+#define HCI_SUPP_COMMANDS_FLOW_SPECIFICATION_OFF     5
+#define HCI_FLOW_SPECIFICATION_SUPPORTED(x)    ((x)[HCI_SUPP_COMMANDS_FLOW_SPECIFICATION_OFF] & HCI_SUPP_COMMANDS_FLOW_SPECIFICATION_MASK)
+
+#define HCI_SUPP_COMMANDS_SET_EVENT_MASK_MASK          0x40
+#define HCI_SUPP_COMMANDS_SET_EVENT_MASK_OFF           5
+#define HCI_SET_EVENT_MASK_SUPPORTED(x)      ((x)[HCI_SUPP_COMMANDS_SET_EVENT_MASK_OFF] & HCI_SUPP_COMMANDS_SET_EVENT_MASK_MASK)
+
+#define HCI_SUPP_COMMANDS_RESET_MASK          0x80
+#define HCI_SUPP_COMMANDS_RESET_OFF           5
+#define HCI_RESET_SUPPORTED(x)      ((x)[HCI_SUPP_COMMANDS_RESET_OFF] & HCI_SUPP_COMMANDS_RESET_MASK)
+
+#define HCI_SUPP_COMMANDS_SET_EVENT_FILTER_MASK      0x01
+#define HCI_SUPP_COMMANDS_SET_EVENT_FILTER_OFF       6
+#define HCI_SET_EVENT_FILTER_SUPPORTED(x)      ((x)[HCI_SUPP_COMMANDS_SET_EVENT_FILTER_OFF] & HCI_SUPP_COMMANDS_SET_EVENT_FILTER_MASK)
+
+#define HCI_SUPP_COMMANDS_FLUSH_MASK           0x02
+#define HCI_SUPP_COMMANDS_FLUSH_OFF            6
+#define HCI_FLUSH_SUPPORTED(x)           ((x)[HCI_SUPP_COMMANDS_FLUSH_OFF] & HCI_SUPP_COMMANDS_FLUSH_MASK)
+
+#define HCI_SUPP_COMMANDS_READ_PIN_TYPE_MASK  0x04
+#define HCI_SUPP_COMMANDS_READ_PIN_TYPE_OFF   6
+#define HCI_READ_PIN_TYPE_SUPPORTED(x)  ((x)[HCI_SUPP_COMMANDS_READ_PIN_TYPE_OFF] & HCI_SUPP_COMMANDS_READ_PIN_TYPE_MASK)
+
+#define HCI_SUPP_COMMANDS_WRITE_PIN_TYPE_MASK       0x08
+#define HCI_SUPP_COMMANDS_WRITE_PIN_TYPE_OFF        6
+#define HCI_WRITE_PIN_TYPE_SUPPORTED(x)       ((x)[HCI_SUPP_COMMANDS_WRITE_PIN_TYPE_OFF] & HCI_SUPP_COMMANDS_WRITE_PIN_TYPE_MASK)
+
+#define HCI_SUPP_COMMANDS_CREATE_NEW_UNIT_KEY_MASK    0x10
+#define HCI_SUPP_COMMANDS_CREATE_NEW_UNIT_KEY_OFF     6
+#define HCI_CREATE_NEW_UNIT_KEY_SUPPORTED(x)    ((x)[HCI_SUPP_COMMANDS_CREATE_NEW_UNIT_KEY_OFF] & HCI_SUPP_COMMANDS_CREATE_NEW_UNIT_KEY_MASK)
+
+#define HCI_SUPP_COMMANDS_READ_STORED_LINK_KEY_MASK    0x20
+#define HCI_SUPP_COMMANDS_READ_STORED_LINK_KEY_OFF     6
+#define HCI_READ_STORED_LINK_KEY_SUPPORTED(x)    ((x)[HCI_SUPP_COMMANDS_READ_STORED_LINK_KEY_OFF] & HCI_SUPP_COMMANDS_READ_STORED_LINK_KEY_MASK)
+
+#define HCI_SUPP_COMMANDS_WRITE_STORED_LINK_KEY_MASK          0x40
+#define HCI_SUPP_COMMANDS_WRITE_STORED_LINK_KEY_OFF           6
+#define HCI_WRITE_STORED_LINK_KEY_SUPPORTED(x)      ((x)[HCI_SUPP_COMMANDS_WRITE_STORED_LINK_KEY_OFF] & HCI_SUPP_COMMANDS_WRITE_STORED_LINK_KEY_MASK)
+
+#define HCI_SUPP_COMMANDS_DELETE_STORED_LINK_KEY_MASK          0x80
+#define HCI_SUPP_COMMANDS_DELETE_STORED_LINK_KEY_OFF           6
+#define HCI_DELETE_STORED_LINK_KEY_SUPPORTED(x)      ((x)[HCI_SUPP_COMMANDS_DELETE_STORED_LINK_KEY_OFF] & HCI_SUPP_COMMANDS_DELETE_STORED_LINK_KEY_MASK)
+
+#define HCI_SUPP_COMMANDS_WRITE_LOCAL_NAME_MASK      0x01
+#define HCI_SUPP_COMMANDS_WRITE_LOCAL_NAME_OFF       7
+#define HCI_WRITE_LOCAL_NAME_SUPPORTED(x)      ((x)[HCI_SUPP_COMMANDS_WRITE_LOCAL_NAME_OFF] & HCI_SUPP_COMMANDS_WRITE_LOCAL_NAME_MASK)
+
+#define HCI_SUPP_COMMANDS_READ_LOCAL_NAME_MASK           0x02
+#define HCI_SUPP_COMMANDS_READ_LOCAL_NAME_OFF            7
+#define HCI_READ_LOCAL_NAME_SUPPORTED(x)           ((x)[HCI_SUPP_COMMANDS_READ_LOCAL_NAME_OFF] & HCI_SUPP_COMMANDS_READ_LOCAL_NAME_MASK)
+
+#define HCI_SUPP_COMMANDS_READ_CONN_ACCEPT_TOUT_MASK  0x04
+#define HCI_SUPP_COMMANDS_READ_CONN_ACCEPT_TOUT_OFF   7
+#define HCI_READ_CONN_ACCEPT_TOUT_SUPPORTED(x)  ((x)[HCI_SUPP_COMMANDS_READ_CONN_ACCEPT_TOUT_OFF] & HCI_SUPP_COMMANDS_READ_CONN_ACCEPT_TOUT_MASK)
+
+#define HCI_SUPP_COMMANDS_WRITE_CONN_ACCEPT_TOUT_MASK       0x08
+#define HCI_SUPP_COMMANDS_WRITE_CONN_ACCEPT_TOUT_OFF        7
+#define HCI_WRITE_CONN_ACCEPT_TOUT_SUPPORTED(x)       ((x)[HCI_SUPP_COMMANDS_WRITE_CONN_ACCEPT_TOUT_OFF] & HCI_SUPP_COMMANDS_WRITE_CONN_ACCEPT_TOUT_MASK)
+
+#define HCI_SUPP_COMMANDS_READ_PAGE_TOUT_MASK    0x10
+#define HCI_SUPP_COMMANDS_READ_PAGE_TOUT_OFF     7
+#define HCI_READ_PAGE_TOUT_SUPPORTED(x)    ((x)[HCI_SUPP_COMMANDS_READ_PAGE_TOUT_OFF] & HCI_SUPP_COMMANDS_READ_PAGE_TOUT_MASK)
+
+#define HCI_SUPP_COMMANDS_WRITE_PAGE_TOUT_MASK    0x20
+#define HCI_SUPP_COMMANDS_WRITE_PAGE_TOUT_OFF     7
+#define HCI_WRITE_PAGE_TOUT_SUPPORTED(x)    ((x)[HCI_SUPP_COMMANDS_WRITE_PAGE_TOUT_OFF] & HCI_SUPP_COMMANDS_WRITE_PAGE_TOUT_MASK)
+
+#define HCI_SUPP_COMMANDS_READ_SCAN_ENABLE_MASK          0x40
+#define HCI_SUPP_COMMANDS_READ_SCAN_ENABLE_OFF           7
+#define HCI_READ_SCAN_ENABLE_SUPPORTED(x)      ((x)[HCI_SUPP_COMMANDS_READ_SCAN_ENABLE_OFF] & HCI_SUPP_COMMANDS_READ_SCAN_ENABLE_MASK)
+
+#define HCI_SUPP_COMMANDS_WRITE_SCAN_ENABLE_MASK          0x80
+#define HCI_SUPP_COMMANDS_WRITE_SCAN_ENABLE_OFF           7
+#define HCI_WRITE_SCAN_ENABLE_SUPPORTED(x)      ((x)[HCI_SUPP_COMMANDS_WRITE_SCAN_ENABLE_OFF] & HCI_SUPP_COMMANDS_WRITE_SCAN_ENABLE_MASK)
+
+#define HCI_SUPP_COMMANDS_READ_PAGE_SCAN_ACTIVITY_MASK      0x01
+#define HCI_SUPP_COMMANDS_READ_PAGE_SCAN_ACTIVITY_OFF       8
+#define HCI_READ_PAGE_SCAN_ACTIVITY_SUPPORTED(x)      ((x)[HCI_SUPP_COMMANDS_READ_PAGE_SCAN_ACTIVITY_OFF] & HCI_SUPP_COMMANDS_READ_PAGE_SCAN_ACTIVITY_MASK)
+
+#define HCI_SUPP_COMMANDS_WRITE_PAGE_SCAN_ACTIVITY_MASK           0x02
+#define HCI_SUPP_COMMANDS_WRITE_PAGE_SCAN_ACTIVITY_OFF            8
+#define HCI_WRITE_PAGE_SCAN_ACTIVITY_SUPPORTED(x)           ((x)[HCI_SUPP_COMMANDS_WRITE_PAGE_SCAN_ACTIVITY_OFF] & HCI_SUPP_COMMANDS_WRITE_PAGE_SCAN_ACTIVITY_MASK)
+
+#define HCI_SUPP_COMMANDS_READ_INQURIY_SCAN_ACTIVITY_MASK  0x04
+#define HCI_SUPP_COMMANDS_READ_INQURIY_SCAN_ACTIVITY_OFF   8
+#define HCI_READ_INQURIY_SCAN_ACTIVITY_SUPPORTED(x)  ((x)[HCI_SUPP_COMMANDS_READ_INQURIY_SCAN_ACTIVITY_OFF] & HCI_SUPP_COMMANDS_READ_INQURIY_SCAN_ACTIVITY_MASK)
+
+#define HCI_SUPP_COMMANDS_WRITE_INQURIY_SCAN_ACTIVITY_MASK       0x08
+#define HCI_SUPP_COMMANDS_WRITE_INQURIY_SCAN_ACTIVITY_OFF        8
+#define HCI_WRITE_INQURIY_SCAN_ACTIVITY_SUPPORTED(x)       ((x)[HCI_SUPP_COMMANDS_WRITE_INQURIY_SCAN_ACTIVITY_OFF] & HCI_SUPP_COMMANDS_WRITE_INQURIY_SCAN_ACTIVITY_MASK)
+
+#define HCI_SUPP_COMMANDS_READ_AUTH_ENABLE_MASK    0x10
+#define HCI_SUPP_COMMANDS_READ_AUTH_ENABLE_OFF     8
+#define HCI_READ_AUTH_ENABLE_SUPPORTED(x)    ((x)[HCI_SUPP_COMMANDS_READ_AUTH_ENABLE_OFF] & HCI_SUPP_COMMANDS_READ_AUTH_ENABLE_MASK)
+
+#define HCI_SUPP_COMMANDS_WRITE_AUTH_ENABLE_MASK    0x20
+#define HCI_SUPP_COMMANDS_WRITE_AUTH_ENABLE_OFF     8
+#define HCI_WRITE_AUTH_ENABLE_SUPPORTED(x)    ((x)[HCI_SUPP_COMMANDS_WRITE_AUTH_ENABLE_OFF] & HCI_SUPP_COMMANDS_WRITE_AUTH_ENABLE_MASK)
+
+#define HCI_SUPP_COMMANDS_READ_ENCRYPT_ENABLE_MASK          0x40
+#define HCI_SUPP_COMMANDS_READ_ENCRYPT_ENABLE_OFF           8
+#define HCI_READ_ENCRYPT_ENABLE_SUPPORTED(x)      ((x)[HCI_SUPP_COMMANDS_READ_ENCRYPT_ENABLE_OFF] & HCI_SUPP_COMMANDS_READ_ENCRYPT_ENABLE_MASK)
+
+#define HCI_SUPP_COMMANDS_WRITE_ENCRYPT_ENABLE_MASK          0x80
+#define HCI_SUPP_COMMANDS_WRITE_ENCRYPT_ENABLE_OFF           8
+#define HCI_WRITE_ENCRYPT_ENABLE_SUPPORTED(x)      ((x)[HCI_SUPP_COMMANDS_WRITE_ENCRYPT_ENABLE_OFF] & HCI_SUPP_COMMANDS_WRITE_ENCRYPT_ENABLE_MASK)
+
+#define HCI_SUPP_COMMANDS_READ_CLASS_DEVICE_MASK      0x01
+#define HCI_SUPP_COMMANDS_READ_CLASS_DEVICE_OFF       9
+#define HCI_READ_CLASS_DEVICE_SUPPORTED(x)      ((x)[HCI_SUPP_COMMANDS_READ_CLASS_DEVICE_OFF] & HCI_SUPP_COMMANDS_READ_CLASS_DEVICE_MASK)
+
+#define HCI_SUPP_COMMANDS_WRITE_CLASS_DEVICE_MASK           0x02
+#define HCI_SUPP_COMMANDS_WRITE_CLASS_DEVICE_OFF            9
+#define HCI_WRITE_CLASS_DEVICE_SUPPORTED(x)           ((x)[HCI_SUPP_COMMANDS_WRITE_CLASS_DEVICE_OFF] & HCI_SUPP_COMMANDS_WRITE_CLASS_DEVICE_MASK)
+
+#define HCI_SUPP_COMMANDS_READ_VOICE_SETTING_MASK  0x04
+#define HCI_SUPP_COMMANDS_READ_VOICE_SETTING_OFF   9
+#define HCI_READ_VOICE_SETTING_SUPPORTED(x)  ((x)[HCI_SUPP_COMMANDS_READ_VOICE_SETTING_OFF] & HCI_SUPP_COMMANDS_READ_VOICE_SETTING_MASK)
+
+#define HCI_SUPP_COMMANDS_WRITE_VOICE_SETTING_MASK       0x08
+#define HCI_SUPP_COMMANDS_WRITE_VOICE_SETTING_OFF        9
+#define HCI_WRITE_VOICE_SETTING_SUPPORTED(x)       ((x)[HCI_SUPP_COMMANDS_WRITE_VOICE_SETTING_OFF] & HCI_SUPP_COMMANDS_WRITE_VOICE_SETTING_MASK)
+
+#define HCI_SUPP_COMMANDS_READ_AUTO_FLUSH_TOUT_MASK    0x10
+#define HCI_SUPP_COMMANDS_READ_AUTO_FLUSH_TOUT_OFF     9
+#define HCI_READ_AUTO_FLUSH_TOUT_SUPPORTED(x)    ((x)[HCI_SUPP_COMMANDS_READ_AUTO_FLUSH_TOUT_OFF] & HCI_SUPP_COMMANDS_READ_AUTO_FLUSH_TOUT_MASK)
+
+#define HCI_SUPP_COMMANDS_WRITE_AUTO_FLUSH_TOUT_MASK    0x20
+#define HCI_SUPP_COMMANDS_WRITE_AUTO_FLUSH_TOUT_OFF     9
+#define HCI_WRITE_AUTO_FLUSH_TOUT_SUPPORTED(x)    ((x)[HCI_SUPP_COMMANDS_WRITE_AUTO_FLUSH_TOUT_OFF] & HCI_SUPP_COMMANDS_WRITE_AUTO_FLUSH_TOUT_MASK)
+
+#define HCI_SUPP_COMMANDS_READ_NUM_BROAD_RETRANS_MASK          0x40
+#define HCI_SUPP_COMMANDS_READ_NUM_BROAD_RETRANS_OFF           9
+#define HCI_READ_NUM_BROAD_RETRANS_SUPPORTED(x)      ((x)[HCI_SUPP_COMMANDS_READ_NUM_BROAD_RETRANS_OFF] & HCI_SUPP_COMMANDS_READ_NUM_BROAD_RETRANS_MASK)
+
+#define HCI_SUPP_COMMANDS_WRITE_NUM_BROAD_RETRANS_MASK          0x80
+#define HCI_SUPP_COMMANDS_WRITE_NUM_BROAD_RETRANS_OFF           9
+#define HCI_WRITE_NUM_BROAD_RETRANS_SUPPORTED(x)      ((x)[HCI_SUPP_COMMANDS_WRITE_NUM_BROAD_RETRANS_OFF] & HCI_SUPP_COMMANDS_WRITE_NUM_BROAD_RETRANS_MASK)
+
+#define HCI_SUPP_COMMANDS_READ_HOLD_MODE_ACTIVITY_MASK      0x01
+#define HCI_SUPP_COMMANDS_READ_HOLD_MODE_ACTIVITY_OFF       10
+#define HCI_READ_HOLD_MODE_ACTIVITY_SUPPORTED(x)      ((x)[HCI_SUPP_COMMANDS_READ_HOLD_MODE_ACTIVITY_OFF] & HCI_SUPP_COMMANDS_READ_HOLD_MODE_ACTIVITY_MASK)
+
+#define HCI_SUPP_COMMANDS_WRITE_HOLD_MODE_ACTIVITY_MASK           0x02
+#define HCI_SUPP_COMMANDS_WRITE_HOLD_MODE_ACTIVITY_OFF            10
+#define HCI_WRITE_HOLD_MODE_ACTIVITY_SUPPORTED(x)           ((x)[HCI_SUPP_COMMANDS_WRITE_HOLD_MODE_ACTIVITY_OFF] & HCI_SUPP_COMMANDS_WRITE_HOLD_MODE_ACTIVITY_MASK)
+
+#define HCI_SUPP_COMMANDS_READ_TRANS_PWR_LEVEL_MASK  0x04
+#define HCI_SUPP_COMMANDS_READ_TRANS_PWR_LEVEL_OFF   10
+#define HCI_READ_TRANS_PWR_LEVEL_SUPPORTED(x)  ((x)[HCI_SUPP_COMMANDS_READ_TRANS_PWR_LEVEL_OFF] & HCI_SUPP_COMMANDS_READ_TRANS_PWR_LEVEL_MASK)
+
+#define HCI_SUPP_COMMANDS_READ_SYNCH_FLOW_CTRL_ENABLE_MASK       0x08
+#define HCI_SUPP_COMMANDS_READ_SYNCH_FLOW_CTRL_ENABLE_OFF        10
+#define HCI_READ_SYNCH_FLOW_CTRL_ENABLE_SUPPORTED(x)       ((x)[HCI_SUPP_COMMANDS_READ_SYNCH_FLOW_CTRL_ENABLE_OFF] & HCI_SUPP_COMMANDS_READ_SYNCH_FLOW_CTRL_ENABLE_MASK)
+
+#define HCI_SUPP_COMMANDS_WRITE_SYNCH_FLOW_CTRL_ENABLE_MASK    0x10
+#define HCI_SUPP_COMMANDS_WRITE_SYNCH_FLOW_CTRL_ENABLE_OFF     10
+#define HCI_WRITE_SYNCH_FLOW_CTRL_ENABLE_SUPPORTED(x)    ((x)[HCI_SUPP_COMMANDS_WRITE_SYNCH_FLOW_CTRL_ENABLE_OFF] & HCI_SUPP_COMMANDS_WRITE_SYNCH_FLOW_CTRL_ENABLE_MASK)
+
+#define HCI_SUPP_COMMANDS_SET_HOST_CTRLR_TO_HOST_FC_MASK    0x20
+#define HCI_SUPP_COMMANDS_SET_HOST_CTRLR_TO_HOST_FC_OFF     10
+#define HCI_SET_HOST_CTRLR_TO_HOST_FC_SUPPORTED(x)    ((x)[HCI_SUPP_COMMANDS_SET_HOST_CTRLR_TO_HOST_FC_OFF] & HCI_SUPP_COMMANDS_SET_HOST_CTRLR_TO_HOST_FC_MASK)
+
+#define HCI_SUPP_COMMANDS_HOST_BUFFER_SIZE_MASK          0x40
+#define HCI_SUPP_COMMANDS_HOST_BUFFER_SIZE_OFF           10
+#define HCI_HOST_BUFFER_SIZE_SUPPORTED(x)      ((x)[HCI_SUPP_COMMANDS_HOST_BUFFER_SIZE_OFF] & HCI_SUPP_COMMANDS_HOST_BUFFER_SIZE_MASK)
+
+#define HCI_SUPP_COMMANDS_HOST_NUM_COMPLETED_PKTS_MASK          0x80
+#define HCI_SUPP_COMMANDS_HOST_NUM_COMPLETED_PKTS_OFF           10
+#define HCI_HOST_NUM_COMPLETED_PKTS_SUPPORTED(x)      ((x)[HCI_SUPP_COMMANDS_HOST_NUM_COMPLETED_PKTS_OFF] & HCI_SUPP_COMMANDS_HOST_NUM_COMPLETED_PKTS_MASK)
+
+#define HCI_SUPP_COMMANDS_READ_LINK_SUP_TOUT_MASK      0x01
+#define HCI_SUPP_COMMANDS_READ_LINK_SUP_TOUT_OFF       11
+#define HCI_READ_LINK_SUP_TOUT_SUPPORTED(x)      ((x)[HCI_SUPP_COMMANDS_READ_LINK_SUP_TOUT_OFF] & HCI_SUPP_COMMANDS_READ_LINK_SUP_TOUT_MASK)
+
+#define HCI_SUPP_COMMANDS_WRITE_LINK_SUP_TOUT_MASK           0x02
+#define HCI_SUPP_COMMANDS_WRITE_LINK_SUP_TOUT_OFF            11
+#define HCI_WRITE_LINK_SUP_TOUT_SUPPORTED(x)           ((x)[HCI_SUPP_COMMANDS_WRITE_LINK_SUP_TOUT_OFF] & HCI_SUPP_COMMANDS_WRITE_LINK_SUP_TOUT_MASK)
+
+#define HCI_SUPP_COMMANDS_READ_NUM_SUPP_IAC_MASK  0x04
+#define HCI_SUPP_COMMANDS_READ_NUM_SUPP_IAC_OFF   11
+#define HCI_READ_NUM_SUPP_IAC_SUPPORTED(x)  ((x)[HCI_SUPP_COMMANDS_READ_NUM_SUPP_IAC_OFF] & HCI_SUPP_COMMANDS_READ_NUM_SUPP_IAC_MASK)
+
+#define HCI_SUPP_COMMANDS_READ_CURRENT_IAC_LAP_MASK       0x08
+#define HCI_SUPP_COMMANDS_READ_CURRENT_IAC_LAP_OFF        11
+#define HCI_READ_CURRENT_IAC_LAP_SUPPORTED(x)       ((x)[HCI_SUPP_COMMANDS_READ_CURRENT_IAC_LAP_OFF] & HCI_SUPP_COMMANDS_READ_CURRENT_IAC_LAP_MASK)
+
+#define HCI_SUPP_COMMANDS_WRITE_CURRENT_IAC_LAP_MASK    0x10
+#define HCI_SUPP_COMMANDS_WRITE_CURRENT_IAC_LAP_OFF     11
+#define HCI_WRITE_CURRENT_IAC_LAP_SUPPORTED(x)    ((x)[HCI_SUPP_COMMANDS_WRITE_CURRENT_IAC_LAP_OFF] & HCI_SUPP_COMMANDS_WRITE_CURRENT_IAC_LAP_MASK)
+
+#define HCI_SUPP_COMMANDS_READ_PAGE_SCAN_PER_MODE_MASK    0x20
+#define HCI_SUPP_COMMANDS_READ_PAGE_SCAN_PER_MODE_OFF     11
+#define HCI_READ_PAGE_SCAN_PER_MODE_SUPPORTED(x)    ((x)[HCI_SUPP_COMMANDS_READ_PAGE_SCAN_PER_MODE_OFF] & HCI_SUPP_COMMANDS_READ_PAGE_SCAN_PER_MODE_MASK)
+
+#define HCI_SUPP_COMMANDS_WRITE_PAGE_SCAN_PER_MODE_MASK          0x40
+#define HCI_SUPP_COMMANDS_WRITE_PAGE_SCAN_PER_MODE_OFF           11
+#define HCI_WRITE_PAGE_SCAN_PER_MODE_SUPPORTED(x)      ((x)[HCI_SUPP_COMMANDS_WRITE_PAGE_SCAN_PER_MODE_OFF] & HCI_SUPP_COMMANDS_WRITE_PAGE_SCAN_PER_MODE_MASK)
+
+#define HCI_SUPP_COMMANDS_READ_PAGE_SCAN_MODE_MASK          0x80
+#define HCI_SUPP_COMMANDS_READ_PAGE_SCAN_MODE_OFF           11
+#define HCI_READ_PAGE_SCAN_MODE_SUPPORTED(x)      ((x)[HCI_SUPP_COMMANDS_READ_PAGE_SCAN_MODE_OFF] & HCI_SUPP_COMMANDS_READ_PAGE_SCAN_MODE_MASK)
+
+#define HCI_SUPP_COMMANDS_WRITE_PAGE_SCAN_MODE_MASK      0x01
+#define HCI_SUPP_COMMANDS_WRITE_PAGE_SCAN_MODE_OFF       12
+#define HCI_WRITE_PAGE_SCAN_MODE_SUPPORTED(x)      ((x)[HCI_SUPP_COMMANDS_WRITE_PAGE_SCAN_MODE_OFF] & HCI_SUPP_COMMANDS_WRITE_PAGE_SCAN_MODE_MASK)
+
+#define HCI_SUPP_COMMANDS_SET_AFH_CHNL_CLASS_MASK           0x02
+#define HCI_SUPP_COMMANDS_SET_AFH_CHNL_CLASS_OFF            12
+#define HCI_SET_AFH_CHNL_CLASS_SUPPORTED(x)           ((x)[HCI_SUPP_COMMANDS_SET_AFH_CHNL_CLASS_OFF] & HCI_SUPP_COMMANDS_SET_AFH_CHNL_CLASS_MASK)
+
+#define HCI_SUPP_COMMANDS_READ_INQUIRY_SCAN_TYPE_MASK    0x10
+#define HCI_SUPP_COMMANDS_READ_INQUIRY_SCAN_TYPE_OFF     12
+#define HCI_READ_INQUIRY_SCAN_TYPE_SUPPORTED(x)    ((x)[HCI_SUPP_COMMANDS_READ_INQUIRY_SCAN_TYPE_OFF] & HCI_SUPP_COMMANDS_READ_INQUIRY_SCAN_TYPE_MASK)
+
+#define HCI_SUPP_COMMANDS_WRITE_INQUIRY_SCAN_TYPE_MASK    0x20
+#define HCI_SUPP_COMMANDS_WRITE_INQUIRY_SCAN_TYPE_OFF     12
+#define HCI_WRITE_INQUIRY_SCAN_TYPE_SUPPORTED(x)    ((x)[HCI_SUPP_COMMANDS_WRITE_INQUIRY_SCAN_TYPE_OFF] & HCI_SUPP_COMMANDS_WRITE_INQUIRY_SCAN_TYPE_MASK)
+
+#define HCI_SUPP_COMMANDS_READ_INQUIRY_MODE_MASK          0x40
+#define HCI_SUPP_COMMANDS_READ_INQUIRY_MODE_OFF           12
+#define HCI_READ_INQUIRY_MODE_SUPPORTED(x)      ((x)[HCI_SUPP_COMMANDS_READ_INQUIRY_MODE_OFF] & HCI_SUPP_COMMANDS_READ_INQUIRY_MODE_MASK)
+
+#define HCI_SUPP_COMMANDS_WRITE_INQUIRY_MODE_MASK          0x80
+#define HCI_SUPP_COMMANDS_WRITE_INQUIRY_MODE_OFF           12
+#define HCI_WRITE_INQUIRY_MODE_SUPPORTED(x)      ((x)[HCI_SUPP_COMMANDS_WRITE_INQUIRY_MODE_OFF] & HCI_SUPP_COMMANDS_WRITE_INQUIRY_MODE_MASK)
+
+#define HCI_SUPP_COMMANDS_READ_PAGE_SCAN_TYPE_MASK      0x01
+#define HCI_SUPP_COMMANDS_READ_PAGE_SCAN_TYPE_OFF       13
+#define HCI_READ_PAGE_SCAN_TYPE_SUPPORTED(x)      ((x)[HCI_SUPP_COMMANDS_READ_PAGE_SCAN_TYPE_OFF] & HCI_SUPP_COMMANDS_READ_PAGE_SCAN_TYPE_MASK)
+
+#define HCI_SUPP_COMMANDS_WRITE_PAGE_SCAN_TYPE_MASK           0x02
+#define HCI_SUPP_COMMANDS_WRITE_PAGE_SCAN_TYPE_OFF            13
+#define HCI_WRITE_PAGE_SCAN_TYPE_SUPPORTED(x)           ((x)[HCI_SUPP_COMMANDS_WRITE_PAGE_SCAN_TYPE_OFF] & HCI_SUPP_COMMANDS_WRITE_PAGE_SCAN_TYPE_MASK)
+
+#define HCI_SUPP_COMMANDS_READ_AFH_CHNL_ASSESS_MODE_MASK  0x04
+#define HCI_SUPP_COMMANDS_READ_AFH_CHNL_ASSESS_MODE_OFF   13
+#define HCI_READ_AFH_CHNL_ASSESS_MODE_SUPPORTED(x)  ((x)[HCI_SUPP_COMMANDS_READ_AFH_CHNL_ASSESS_MODE_OFF] & HCI_SUPP_COMMANDS_READ_AFH_CHNL_ASSESS_MODE_MASK)
+
+#define HCI_SUPP_COMMANDS_WRITE_AFH_CHNL_ASSESS_MODE_MASK       0x08
+#define HCI_SUPP_COMMANDS_WRITE_AFH_CHNL_ASSESS_MODE_OFF        13
+#define HCI_WRITE_AFH_CHNL_ASSESS_MODE_SUPPORTED(x)       ((x)[HCI_SUPP_COMMANDS_WRITE_AFH_CHNL_ASSESS_MODE_OFF] & HCI_SUPP_COMMANDS_WRITE_AFH_CHNL_ASSESS_MODE_MASK)
+
+#define HCI_SUPP_COMMANDS_READ_LOCAL_VER_INFO_MASK       0x08
+#define HCI_SUPP_COMMANDS_READ_LOCAL_VER_INFO_OFF        14
+#define HCI_READ_LOCAL_VER_INFO_SUPPORTED(x)       ((x)[HCI_SUPP_COMMANDS_READ_LOCAL_VER_INFO_OFF] & HCI_SUPP_COMMANDS_READ_LOCAL_VER_INFO_MASK)
+
+#define HCI_SUPP_COMMANDS_READ_LOCAL_SUP_CMDS_MASK       0x10
+#define HCI_SUPP_COMMANDS_READ_LOCAL_SUP_CMDS_OFF        14
+#define HCI_READ_LOCAL_SUP_CMDS_SUPPORTED(x)       ((x)[HCI_SUPP_COMMANDS_READ_LOCAL_SUP_CMDS_OFF] & HCI_SUPP_COMMANDS_READ_LOCAL_SUP_CMDS_MASK)
+
+#define HCI_SUPP_COMMANDS_READ_LOCAL_SUPP_FEATURES_MASK    0x20
+#define HCI_SUPP_COMMANDS_READ_LOCAL_SUPP_FEATURES_OFF     14
+#define HCI_READ_LOCAL_SUPP_FEATURES_SUPPORTED(x)    ((x)[HCI_SUPP_COMMANDS_READ_LOCAL_SUPP_FEATURES_OFF] & HCI_SUPP_COMMANDS_READ_LOCAL_SUPP_FEATURES_MASK)
+
+#define HCI_SUPP_COMMANDS_READ_LOCAL_EXT_FEATURES_MASK          0x40
+#define HCI_SUPP_COMMANDS_READ_LOCAL_EXT_FEATURES_OFF           14
+#define HCI_READ_LOCAL_EXT_FEATURES_SUPPORTED(x)      ((x)[HCI_SUPP_COMMANDS_READ_LOCAL_EXT_FEATURES_OFF] & HCI_SUPP_COMMANDS_READ_LOCAL_EXT_FEATURES_MASK)
+
+#define HCI_SUPP_COMMANDS_READ_BUFFER_SIZE_MASK          0x80
+#define HCI_SUPP_COMMANDS_READ_BUFFER_SIZE_OFF           14
+#define HCI_READ_BUFFER_SIZE_SUPPORTED(x)      ((x)[HCI_SUPP_COMMANDS_READ_BUFFER_SIZE_OFF] & HCI_SUPP_COMMANDS_READ_BUFFER_SIZE_MASK)
+
+#define HCI_SUPP_COMMANDS_READ_COUNTRY_CODE_MASK      0x01
+#define HCI_SUPP_COMMANDS_READ_COUNTRY_CODE_OFF       15
+#define HCI_READ_COUNTRY_CODE_SUPPORTED(x)      ((x)[HCI_SUPP_COMMANDS_READ_COUNTRY_CODE_OFF] & HCI_SUPP_COMMANDS_READ_COUNTRY_CODE_MASK)
+
+#define HCI_SUPP_COMMANDS_READ_BD_ADDR_MASK           0x02
+#define HCI_SUPP_COMMANDS_READ_BD_ADDR_OFF            15
+#define HCI_READ_BD_ADDR_SUPPORTED(x)           ((x)[HCI_SUPP_COMMANDS_READ_BD_ADDR_OFF] & HCI_SUPP_COMMANDS_READ_BD_ADDR_MASK)
+
+#define HCI_SUPP_COMMANDS_READ_FAIL_CONTACT_CNTR_MASK  0x04
+#define HCI_SUPP_COMMANDS_READ_FAIL_CONTACT_CNTR_OFF   15
+#define HCI_READ_FAIL_CONTACT_CNTR_SUPPORTED(x)  ((x)[HCI_SUPP_COMMANDS_READ_FAIL_CONTACT_CNTR_OFF] & HCI_SUPP_COMMANDS_READ_FAIL_CONTACT_CNTR_MASK)
+
+#define HCI_SUPP_COMMANDS_RESET_FAIL_CONTACT_CNTR_MASK       0x08
+#define HCI_SUPP_COMMANDS_RESET_FAIL_CONTACT_CNTR_OFF        15
+#define HCI_RESET_FAIL_CONTACT_CNTR_SUPPORTED(x)       ((x)[HCI_SUPP_COMMANDS_RESET_FAIL_CONTACT_CNTR_OFF] & HCI_SUPP_COMMANDS_RESET_FAIL_CONTACT_CNTR_MASK)
+
+#define HCI_SUPP_COMMANDS_GET_LINK_QUALITY_MASK    0x10
+#define HCI_SUPP_COMMANDS_GET_LINK_QUALITY_OFF     15
+#define HCI_GET_LINK_QUALITY_SUPPORTED(x)    ((x)[HCI_SUPP_COMMANDS_GET_LINK_QUALITY_OFF] & HCI_SUPP_COMMANDS_GET_LINK_QUALITY_MASK)
+
+#define HCI_SUPP_COMMANDS_READ_RSSI_MASK    0x20
+#define HCI_SUPP_COMMANDS_READ_RSSI_OFF     15
+#define HCI_READ_RSSI_SUPPORTED(x)    ((x)[HCI_SUPP_COMMANDS_READ_RSSI_OFF] & HCI_SUPP_COMMANDS_READ_RSSI_MASK)
+
+#define HCI_SUPP_COMMANDS_READ_AFH_CH_MAP_MASK          0x40
+#define HCI_SUPP_COMMANDS_READ_AFH_CH_MAP_OFF           15
+#define HCI_READ_AFH_CH_MAP_SUPPORTED(x)      ((x)[HCI_SUPP_COMMANDS_READ_AFH_CH_MAP_OFF] & HCI_SUPP_COMMANDS_READ_AFH_CH_MAP_MASK)
+
+#define HCI_SUPP_COMMANDS_READ_BD_CLOCK_MASK          0x80
+#define HCI_SUPP_COMMANDS_READ_BD_CLOCK_OFF           15
+#define HCI_READ_BD_CLOCK_SUPPORTED(x)      ((x)[HCI_SUPP_COMMANDS_READ_BD_CLOCK_OFF] & HCI_SUPP_COMMANDS_READ_BD_CLOCK_MASK)
+
+#define HCI_SUPP_COMMANDS_READ_LOOPBACK_MODE_MASK      0x01
+#define HCI_SUPP_COMMANDS_READ_LOOPBACK_MODE_OFF       16
+#define HCI_READ_LOOPBACK_MODE_SUPPORTED(x)      ((x)[HCI_SUPP_COMMANDS_READ_LOOPBACK_MODE_OFF] & HCI_SUPP_COMMANDS_READ_LOOPBACK_MODE_MASK)
+
+#define HCI_SUPP_COMMANDS_WRITE_LOOPBACK_MODE_MASK           0x02
+#define HCI_SUPP_COMMANDS_WRITE_LOOPBACK_MODE_OFF            16
+#define HCI_WRITE_LOOPBACK_MODE_SUPPORTED(x)           ((x)[HCI_SUPP_COMMANDS_WRITE_LOOPBACK_MODE_OFF] & HCI_SUPP_COMMANDS_WRITE_LOOPBACK_MODE_MASK)
+
+#define HCI_SUPP_COMMANDS_ENABLE_DEV_UNDER_TEST_MASK  0x04
+#define HCI_SUPP_COMMANDS_ENABLE_DEV_UNDER_TEST_OFF   16
+#define HCI_ENABLE_DEV_UNDER_TEST_SUPPORTED(x)  ((x)[HCI_SUPP_COMMANDS_ENABLE_DEV_UNDER_TEST_OFF] & HCI_SUPP_COMMANDS_ENABLE_DEV_UNDER_TEST_MASK)
+
+#define HCI_SUPP_COMMANDS_SETUP_SYNCH_CONN_MASK       0x08
+#define HCI_SUPP_COMMANDS_SETUP_SYNCH_CONN_OFF        16
+#define HCI_SETUP_SYNCH_CONN_SUPPORTED(x)       ((x)[HCI_SUPP_COMMANDS_SETUP_SYNCH_CONN_OFF] & HCI_SUPP_COMMANDS_SETUP_SYNCH_CONN_MASK)
+
+#define HCI_SUPP_COMMANDS_ACCEPT_SYNCH_CONN_MASK    0x10
+#define HCI_SUPP_COMMANDS_ACCEPT_SYNCH_CONN_OFF     16
+#define HCI_ACCEPT_SYNCH_CONN_SUPPORTED(x)    ((x)[HCI_SUPP_COMMANDS_ACCEPT_SYNCH_CONN_OFF] & HCI_SUPP_COMMANDS_ACCEPT_SYNCH_CONN_MASK)
+
+#define HCI_SUPP_COMMANDS_REJECT_SYNCH_CONN_MASK    0x20
+#define HCI_SUPP_COMMANDS_REJECT_SYNCH_CONN_OFF     16
+#define HCI_REJECT_SYNCH_CONN_SUPPORTED(x)    ((x)[HCI_SUPP_COMMANDS_REJECT_SYNCH_CONN_OFF] & HCI_SUPP_COMMANDS_REJECT_SYNCH_CONN_MASK)
+
+#define HCI_SUPP_COMMANDS_READ_EXT_INQUIRY_RESP_MASK   0x01
+#define HCI_SUPP_COMMANDS_READ_EXT_INQUIRY_RESP_OFF    17
+#define HCI_READ_EXT_INQUIRY_RESP_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_READ_EXT_INQUIRY_RESP_OFF] & HCI_SUPP_COMMANDS_READ_EXT_INQUIRY_RESP_MASK)
+
+#define HCI_SUPP_COMMANDS_WRITE_EXT_INQUIRY_RESP_MASK  0x02
+#define HCI_SUPP_COMMANDS_WRITE_EXT_INQUIRY_RESP_OFF   17
+#define HCI_WRITE_EXT_INQUIRY_RESP_SUPPORTED(x)  ((x)[HCI_SUPP_COMMANDS_WRITE_EXT_INQUIRY_RESP_OFF] & HCI_SUPP_COMMANDS_WRITE_EXT_INQUIRY_RESP_MASK)
+
+#define HCI_SUPP_COMMANDS_REFRESH_ENCRYPTION_KEY_MASK   0x04
+#define HCI_SUPP_COMMANDS_REFRESH_ENCRYPTION_KEY_OFF    17
+#define HCI_REFRESH_ENCRYPTION_KEY_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_REFRESH_ENCRYPTION_KEY_OFF] & HCI_SUPP_COMMANDS_REFRESH_ENCRYPTION_KEY_MASK)
+
+/* Octet 17, bit 3 is reserved */
+
+#define HCI_SUPP_COMMANDS_SNIFF_SUB_RATE_MASK       0x10
+#define HCI_SUPP_COMMANDS_SNIFF_SUB_RATE_OFF        17
+#define HCI_SNIFF_SUB_RATE_CMD_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_SNIFF_SUB_RATE_OFF] & HCI_SUPP_COMMANDS_SNIFF_SUB_RATE_MASK)
+
+#define HCI_SUPP_COMMANDS_READ_SIMPLE_PAIRING_MODE_MASK   0x20
+#define HCI_SUPP_COMMANDS_READ_SIMPLE_PAIRING_MODE_OFF    17
+#define HCI_READ_SIMPLE_PAIRING_MODE_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_READ_SIMPLE_PAIRING_MODE_OFF] & HCI_SUPP_COMMANDS_READ_SIMPLE_PAIRING_MODE_MASK)
+
+#define HCI_SUPP_COMMANDS_WRITE_SIMPLE_PAIRING_MODE_MASK   0x40
+#define HCI_SUPP_COMMANDS_WRITE_SIMPLE_PAIRING_MODE_OFF    17
+#define HCI_WRITE_SIMPLE_PAIRING_MODE_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_WRITE_SIMPLE_PAIRING_MODE_OFF] & HCI_SUPP_COMMANDS_WRITE_SIMPLE_PAIRING_MODE_MASK)
+
+#define HCI_SUPP_COMMANDS_READ_LOCAL_OOB_DATA_MASK   0x80
+#define HCI_SUPP_COMMANDS_READ_LOCAL_OOB_DATA_OFF    17
+#define HCI_READ_LOCAL_OOB_DATA_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_READ_LOCAL_OOB_DATA_OFF] & HCI_SUPP_COMMANDS_READ_LOCAL_OOB_DATA_MASK)
+
+#define HCI_SUPP_COMMANDS_READ_INQUIRY_RESPONSE_TX_POWER_MASK   0x01
+#define HCI_SUPP_COMMANDS_READ_INQUIRY_RESPONSE_TX_POWER_OFF    18
+#define HCI_READ_INQUIRY_RESPONSE_TX_POWER_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_READ_INQUIRY_RESPONSE_TX_POWER_OFF] & HCI_SUPP_COMMANDS_READ_INQUIRY_RESPONSE_TX_POWER_MASK)
+
+#define HCI_SUPP_COMMANDS_WRITE_INQUIRY_RESPONSE_TX_POWER_MASK   0x02
+#define HCI_SUPP_COMMANDS_WRITE_INQUIRY_RESPONSE_TX_POWER_OFF    18
+#define HCI_WRITE_INQUIRY_RESPONSE_TX_POWER_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_WRITE_INQUIRY_RESPONSE_TX_POWER_OFF] & HCI_SUPP_COMMANDS_WRITE_INQUIRY_RESPONSE_TX_POWER_MASK)
+
+#define HCI_SUPP_COMMANDS_READ_DEFAULT_ERRONEOUS_DATA_REPORTING_MASK   0x04
+#define HCI_SUPP_COMMANDS_READ_DEFAULT_ERRONEOUS_DATA_REPORTING_OFF    18
+#define HCI_READ_DEFAULT_ERRONEOUS_DATA_REPORTING_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_READ_DEFAULT_ERRONEOUS_DATA_REPORTING_OFF] & HCI_SUPP_COMMANDS_READ_DEFAULT_ERRONEOUS_DATA_REPORTING_MASK)
+
+#define HCI_SUPP_COMMANDS_WRITE_DEFAULT_ERRONEOUS_DATA_REPORTING_MASK   0x08
+#define HCI_SUPP_COMMANDS_WRITE_DEFAULT_ERRONEOUS_DATA_REPORTING_OFF    18
+#define HCI_WRITE_DEFAULT_ERRONEOUS_DATA_REPORTING_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_WRITE_DEFAULT_ERRONEOUS_DATA_REPORTING_OFF] & HCI_SUPP_COMMANDS_WRITE_DEFAULT_ERRONEOUS_DATA_REPORTING_MASK)
+
+#define HCI_SUPP_COMMANDS_IO_CAPABILITY_REQUEST_REPLY_MASK   0x80
+#define HCI_SUPP_COMMANDS_IO_CAPABILITY_REQUEST_REPLY_OFF    18
+#define HCI_IO_CAPABILITY_REQUEST_REPLY_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_IO_CAPABILITY_REQUEST_REPLY_OFF] & HCI_SUPP_COMMANDS_IO_CAPABILITY_REQUEST_REPLY_MASK)
+
+#define HCI_SUPP_COMMANDS_USER_CONFIRMATION_REQUEST_REPLY_MASK   0x01
+#define HCI_SUPP_COMMANDS_USER_CONFIRMATION_REQUEST_REPLY_OFF    19
+#define HCI_USER_CONFIRMATION_REQUEST_REPLY_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_USER_CONFIRMATION_REQUEST_REPLY_OFF] & HCI_SUPP_COMMANDS_USER_CONFIRMATION_REQUEST_REPLY_MASK)
+
+#define HCI_SUPP_COMMANDS_USER_CONFIRMATION_REQUEST_NEG_REPLY_MASK   0x02
+#define HCI_SUPP_COMMANDS_USER_CONFIRMATION_REQUEST_NEG_REPLY_OFF    19
+#define HCI_USER_CONFIRMATION_REQUEST_NEG_REPLY_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_USER_CONFIRMATION_REQUEST_NEG_REPLY_OFF] & HCI_SUPP_COMMANDS_USER_CONFIRMATION_REQUEST_NEG_REPLY_MASK)
+
+#define HCI_SUPP_COMMANDS_USER_PASSKEY_REQUEST_REPLY_MASK   0x04
+#define HCI_SUPP_COMMANDS_USER_PASSKEY_REQUEST_REPLY_OFF    19
+#define HCI_USER_PASSKEY_REQUEST_REPLY_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_USER_PASSKEY_REQUEST_REPLY_OFF] & HCI_SUPP_COMMANDS_USER_PASSKEY_REQUEST_REPLY_MASK)
+
+#define HCI_SUPP_COMMANDS_USER_PASSKEY_REQUEST_NEG_REPLY_MASK   0x08
+#define HCI_SUPP_COMMANDS_USER_PASSKEY_REQUEST_NEG_REPLY_OFF    19
+#define HCI_USER_PASSKEY_REQUEST_NEG_REPLY_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_USER_PASSKEY_REQUEST_NEG_REPLY_OFF] & HCI_SUPP_COMMANDS_USER_PASSKEY_REQUEST_NEG_REPLY_MASK)
+
+#define HCI_SUPP_COMMANDS_REMOTE_OOB_DATA_REQUEST_REPLY_MASK   0x10
+#define HCI_SUPP_COMMANDS_REMOTE_OOB_DATA_REQUEST_REPLY_OFF    19
+#define HCI_REMOTE_OOB_DATA_REQUEST_REPLY_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_REMOTE_OOB_DATA_REQUEST_REPLY_OFF] & HCI_SUPP_COMMANDS_REMOTE_OOB_DATA_REQUEST_REPLY_MASK)
+
+#define HCI_SUPP_COMMANDS_WRITE_SIMPLE_PAIRING_DBG_MODE_MASK       0x20
+#define HCI_SUPP_COMMANDS_WRITE_SIMPLE_PAIRING_DBG_MODE_OFF        19
+#define HCI_WRITE_SIMPLE_PAIRING_DBG_MODE_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_WRITE_SIMPLE_PAIRING_DBG_MODE_OFF] & HCI_SUPP_COMMANDS_WRITE_SIMPLE_PAIRING_DBG_MODE_MASK)
+
+#define HCI_SUPP_COMMANDS_ENHANCED_FLUSH_MASK   0x40
+#define HCI_SUPP_COMMANDS_ENHANCED_FLUSH_OFF    19
+#define HCI_ENHANCED_FLUSH_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_ENHANCED_FLUSH_OFF] & HCI_SUPP_COMMANDS_ENHANCED_FLUSH_MASK)
+
+#define HCI_SUPP_COMMANDS_REMOTE_OOB_DATA_REQUEST_NEG_REPLY_MASK       0x80
+#define HCI_SUPP_COMMANDS_REMOTE_OOB_DATA_REQUEST_NEG_REPLY_OFF        19
+#define HCI_REMOTE_OOB_DATA_REQUEST_NEG_REPLY_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_REMOTE_OOB_DATA_REQUEST_NEG_REPLY_OFF] & HCI_SUPP_COMMANDS_REMOTE_OOB_DATA_REQUEST_NEG_REPLY_MASK)
+
+/* Supported Commands (Byte 20) */
+#define HCI_SUPP_COMMANDS_SEND_KEYPRESS_NOTIF_MASK       0x04
+#define HCI_SUPP_COMMANDS_SEND_KEYPRESS_NOTIF_OFF        20
+#define HCI_SEND_NOTIF_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_SEND_KEYPRESS_NOTIF_OFF] & HCI_SUPP_COMMANDS_SEND_KEYPRESS_NOTIF_MASK)
+
+#define HCI_SUPP_COMMANDS_IO_CAP_REQ_NEG_REPLY_MASK      0x08
+#define HCI_SUPP_COMMANDS_IO_CAP_REQ_NEG_REPLY_OFF       20
+#define HCI_IO_CAP_REQ_NEG_REPLY_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_IO_CAP_REQ_NEG_REPLY_OFF] & HCI_SUPP_COMMANDS_IO_CAP_REQ_NEG_REPLY_MASK)
+
+#define HCI_SUPP_COMMANDS_READ_ENCR_KEY_SIZE_MASK      0x10
+#define HCI_SUPP_COMMANDS_READ_ENCR_KEY_SIZE_OFF       20
+#define HCI_READ_ENCR_KEY_SIZE_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_READ_ENCR_KEY_SIZE_OFF] & HCI_SUPP_COMMANDS_READ_ENCR_KEY_SIZE_MASK)
+
+/* Supported Commands (Byte 21) */
+#define HCI_SUPP_COMMANDS_CREATE_PHYSICAL_LINK_MASK   0x01
+#define HCI_SUPP_COMMANDS_CREATE_PHYSICAL_LINK_OFF    21
+#define HCI_CREATE_PHYSICAL_LINK_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_CREATE_PHYSICAL_LINK_OFF] & HCI_SUPP_COMMANDS_CREATE_PHYSICAL_LINK_MASK)
+
+#define HCI_SUPP_COMMANDS_ACCEPT_PHYSICAL_LINK_MASK   0x02
+#define HCI_SUPP_COMMANDS_ACCEPT_PHYSICAL_LINK_OFF    21
+#define HCI_ACCEPT_PHYSICAL_LINK_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_ACCEPT_PHYSICAL_LINK_OFF] & HCI_SUPP_COMMANDS_ACCEPT_PHYSICAL_LINK_MASK)
+
+#define HCI_SUPP_COMMANDS_DISCONNECT_PHYSICAL_LINK_MASK   0x04
+#define HCI_SUPP_COMMANDS_DISCONNECT_PHYSICAL_LINK_OFF    21
+#define HCI_DISCONNECT_PHYSICAL_LINK_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_DISCONNECT_PHYSICAL_LINK_OFF] & HCI_SUPP_COMMANDS_DISCONNECT_PHYSICAL_LINK_MASK)
+
+#define HCI_SUPP_COMMANDS_CREATE_LOGICAL_LINK_MASK   0x08
+#define HCI_SUPP_COMMANDS_CREATE_LOGICAL_LINK_OFF    21
+#define HCI_CREATE_LOGICAL_LINK_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_CREATE_LOGICAL_LINK_OFF] & HCI_SUPP_COMMANDS_CREATE_LOGICAL_LINK_MASK)
+
+#define HCI_SUPP_COMMANDS_ACCEPT_LOGICAL_LINK_MASK   0x10
+#define HCI_SUPP_COMMANDS_ACCEPT_LOGICAL_LINK_OFF    21
+#define HCI_ACCEPT_LOGICAL_LINK_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_ACCEPT_LOGICAL_LINK_OFF] & HCI_SUPP_COMMANDS_ACCEPT_LOGICAL_LINK_MASK)
+
+#define HCI_SUPP_COMMANDS_DISCONNECT_LOGICAL_LINK_MASK   0x20
+#define HCI_SUPP_COMMANDS_DISCONNECT_LOGICAL_LINK_OFF    21
+#define HCI_DISCONNECT_LOGICAL_LINK_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_DISCONNECT_LOGICAL_LINK_OFF] & HCI_SUPP_COMMANDS_DISCONNECT_LOGICAL_LINK_MASK)
+
+#define HCI_SUPP_COMMANDS_LOGICAL_LINK_CANCEL_MASK   0x40
+#define HCI_SUPP_COMMANDS_LOGICAL_LINK_CANCEL_OFF    21
+#define HCI_LOGICAL_LINK_CANCEL_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_LOGICAL_LINK_CANCEL_OFF] & HCI_SUPP_COMMANDS_LOGICAL_LINK_CANCEL_MASK)
+
+#define HCI_SUPP_COMMANDS_FLOW_SPEC_MODIFY_MASK       0x80
+#define HCI_SUPP_COMMANDS_FLOW_SPEC_MODIFY_OFF        21
+#define HCI_FLOW_SPEC_MODIFY_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_FLOW_SPEC_MODIFY_OFF] & HCI_SUPP_COMMANDS_FLOW_SPEC_MODIFY_MASK)
+
+/* Supported Commands (Byte 22) */
+#define HCI_SUPP_COMMANDS_READ_LOGICAL_LINK_ACCEPT_TIMEOUT_MASK   0x01
+#define HCI_SUPP_COMMANDS_READ_LOGICAL_LINK_ACCEPT_TIMEOUT_OFF    22
+#define HCI_READ_LOGICAL_LINK_ACCEPT_TIMEOUT_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_READ_LOGICAL_LINK_ACCEPT_TIMEOUT_OFF] & HCI_SUPP_COMMANDS_READ_LOGICAL_LINK_ACCEPT_TIMEOUT_MASK)
+
+#define HCI_SUPP_COMMANDS_WRITE_LOGICAL_LINK_ACCEPT_TIMEOUT_MASK   0x02
+#define HCI_SUPP_COMMANDS_WRITE_LOGICAL_LINK_ACCEPT_TIMEOUT_OFF    22
+#define HCI_WRITE_LOGICAL_LINK_ACCEPT_TIMEOUT_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_WRITE_LOGICAL_LINK_ACCEPT_TIMEOUT_OFF] & HCI_SUPP_COMMANDS_WRITE_LOGICAL_LINK_ACCEPT_TIMEOUT_MASK)
+
+#define HCI_SUPP_COMMANDS_SET_EVENT_MASK_PAGE_2_MASK   0x04
+#define HCI_SUPP_COMMANDS_SET_EVENT_MASK_PAGE_2_OFF    22
+#define HCI_SET_EVENT_MASK_PAGE_2_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_SET_EVENT_MASK_PAGE_2_OFF] & HCI_SUPP_COMMANDS_SET_EVENT_MASK_PAGE_2_MASK)
+
+#define HCI_SUPP_COMMANDS_READ_LOCATION_DATA_MASK   0x08
+#define HCI_SUPP_COMMANDS_READ_LOCATION_DATA_OFF    22
+#define HCI_READ_LOCATION_DATA_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_READ_LOCATION_DATA_OFF] & HCI_SUPP_COMMANDS_READ_LOCATION_DATA_MASK)
+
+#define HCI_SUPP_COMMANDS_WRITE_LOCATION_DATA_MASK   0x10
+#define HCI_SUPP_COMMANDS_WRITE_LOCATION_DATA_OFF    22
+#define HCI_WRITE_LOCATION_DATA_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_WRITE_LOCATION_DATA_OFF] & HCI_SUPP_COMMANDS_WRITE_LOCATION_DATA_MASK)
+
+#define HCI_SUPP_COMMANDS_READ_LOCAL_AMP_INFO_MASK   0x20
+#define HCI_SUPP_COMMANDS_READ_LOCAL_AMP_INFO_OFF    22
+#define HCI_READ_LOCAL_AMP_INFO_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_READ_LOCAL_AMP_INFO_OFF] & HCI_SUPP_COMMANDS_READ_LOCAL_AMP_INFO_MASK)
+
+#define HCI_SUPP_COMMANDS_READ_LOCAL_AMP_ASSOC_MASK   0x40
+#define HCI_SUPP_COMMANDS_READ_LOCAL_AMP_ASSOC_OFF    22
+#define HCI_READ_LOCAL_AMP_ASSOC_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_READ_LOCAL_AMP_ASSOC_OFF] & HCI_SUPP_COMMANDS_READ_LOCAL_AMP_ASSOC_MASK)
+
+#define HCI_SUPP_COMMANDS_WRITE_REMOTE_AMP_ASSOC_MASK   0x80
+#define HCI_SUPP_COMMANDS_WRITE_REMOTE_AMP_ASSOC_OFF    22
+#define HCI_WRITE_REMOTE_AMP_ASSOC_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_WRITE_REMOTE_AMP_ASSOC_OFF] & HCI_SUPP_COMMANDS_WRITE_REMOTE_AMP_ASSOC_MASK)
+
+/* Supported Commands (Byte 23) */
+#define HCI_SUPP_COMMANDS_READ_FLOW_CONTROL_MODE_MASK   0x01
+#define HCI_SUPP_COMMANDS_READ_FLOW_CONTROL_MODE_OFF    23
+#define HCI_READ_FLOW_CONTROL_MODE_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_READ_FLOW_CONTROL_MODE_OFF] & HCI_SUPP_COMMANDS_READ_FLOW_CONTROL_MODE_MASK)
+
+#define HCI_SUPP_COMMANDS_WRITE_FLOW_CONTROL_MODE_MASK   0x02
+#define HCI_SUPP_COMMANDS_WRITE_FLOW_CONTROL_MODE_OFF    23
+#define HCI_WRITE_FLOW_CONTROL_MODE_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_WRITE_FLOW_CONTROL_MODE_OFF] & HCI_SUPP_COMMANDS_WRITE_FLOW_CONTROL_MODE_MASK)
+
+#define HCI_SUPP_COMMANDS_READ_DATA_BLOCK_SIZE_MASK   0x04
+#define HCI_SUPP_COMMANDS_READ_DATA_BLOCK_SIZE_OFF    23
+#define HCI_READ_DATA_BLOCK_SIZE_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_READ_DATA_BLOCK_SIZE_OFF] & HCI_SUPP_COMMANDS_READ_DATA_BLOCK_SIZE_MASK)
+
+#define HCI_SUPP_COMMANDS_ENABLE_AMP_RCVR_REPORTS_MASK   0x20
+#define HCI_SUPP_COMMANDS_ENABLE_AMP_RCVR_REPORTS_OFF    23
+#define HCI_ENABLE_AMP_RCVR_REPORTS_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_ENABLE_AMP_RCVR_REPORTS_OFF] & HCI_SUPP_COMMANDS_ENABLE_AMP_RCVR_REPORTS_MASK)
+
+#define HCI_SUPP_COMMANDS_AMP_TEST_END_MASK   0x40
+#define HCI_SUPP_COMMANDS_AMP_TEST_END_OFF    23
+#define HCI_AMP_TEST_END_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_AMP_TEST_END_OFF] & HCI_SUPP_COMMANDS_AMP_TEST_END_MASK)
+
+#define HCI_SUPP_COMMANDS_AMP_TEST_MASK   0x80
+#define HCI_SUPP_COMMANDS_AMP_TEST_OFF    23
+#define HCI_AMP_TEST_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_AMP_TEST_OFF] & HCI_SUPP_COMMANDS_AMP_TEST_MASK)
+
+/* Supported Commands (Byte 24) */
+#define HCI_SUPP_COMMANDS_READ_TRANSMIT_POWER_LEVEL_MASK   0x01
+#define HCI_SUPP_COMMANDS_READ_TRANSMIT_POWER_LEVEL_OFF    24
+#define HCI_READ_TRANSMIT_POWER_LEVEL_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_READ_TRANSMIT_POWER_LEVEL_OFF] & HCI_SUPP_COMMANDS_READ_TRANSMIT_POWER_LEVEL_MASK)
+
+#define HCI_SUPP_COMMANDS_READ_BE_FLUSH_TOUT_MASK   0x04
+#define HCI_SUPP_COMMANDS_READ_BE_FLUSH_TOUT_OFF    24
+#define HCI_READ_BE_FLUSH_TOUT_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_READ_BE_FLUSH_TOUT_OFF] & HCI_SUPP_COMMANDS_READ_BE_FLUSH_TOUT_MASK)
+
+#define HCI_SUPP_COMMANDS_WRITE_BE_FLUSH_TOUT_MASK   0x08
+#define HCI_SUPP_COMMANDS_WRITE_BE_FLUSH_TOUT_OFF    24
+#define HCI_WRITE_BE_FLUSH_TOUT_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_WRITE_BE_FLUSH_TOUT_OFF] & HCI_SUPP_COMMANDS_WRITE_BE_FLUSH_TOUT_MASK)
+
+#define HCI_SUPP_COMMANDS_SHORT_RANGE_MODE_MASK   0x10
+#define HCI_SUPP_COMMANDS_SHORT_RANGE_MODE_OFF    24
+#define HCI_SHORT_RANGE_MODE_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_SHORT_RANGE_MODE_OFF] & HCI_SUPP_COMMANDS_SHORT_RANGE_MODE_MASK)
+
+/* LE commands TBD
+** Supported Commands (Byte 24 continued)
+** Supported Commands (Byte 25)
+** Supported Commands (Byte 26)
+** Supported Commands (Byte 27)
+** Supported Commands (Byte 28)
+*/
+
+/* Supported Commands (Byte 29) */
+#define HCI_SUPP_COMMANDS_ENH_SETUP_SYNCH_CONN_MASK     0x08
+#define HCI_SUPP_COMMANDS_ENH_SETUP_SYNCH_CONN_OFF      29
+#define HCI_READ_ENH_SETUP_SYNCH_CONN_SUPPORTED(x)      ((x)[HCI_SUPP_COMMANDS_ENH_SETUP_SYNCH_CONN_OFF] & HCI_SUPP_COMMANDS_ENH_SETUP_SYNCH_CONN_MASK)
+
+#define HCI_SUPP_COMMANDS_ENH_ACCEPT_SYNCH_CONN_MASK    0x10
+#define HCI_SUPP_COMMANDS_ENH_ACCEPT_SYNCH_CONN_OFF     29
+#define HCI_READ_ENH_ACCEPT_SYNCH_CONN_SUPPORTED(x)     ((x)[HCI_SUPP_COMMANDS_ENH_ACCEPT_SYNCH_CONN_OFF] & HCI_SUPP_COMMANDS_ENH_ACCEPT_SYNCH_CONN_MASK)
+
+#define HCI_SUPP_COMMANDS_READ_LOCAL_CODECS_MASK        0x20
+#define HCI_SUPP_COMMANDS_READ_LOCAL_CODECS_OFF         29
+#define HCI_READ_LOCAL_CODECS_SUPPORTED(x)              ((x)[HCI_SUPP_COMMANDS_READ_LOCAL_CODECS_OFF] & HCI_SUPP_COMMANDS_READ_LOCAL_CODECS_MASK)
+
+#define HCI_SUPP_COMMANDS_SET_MWS_CHANN_PARAM_MASK      0x40
+#define HCI_SUPP_COMMANDS_SET_MWS_CHANN_PARAM_OFF       29
+#define HCI_SET_MWS_CHANNEL_PARAMETERS_SUPPORTED(x)     ((x)[HCI_SUPP_COMMANDS_SET_MWS_CHANN_PARAM_OFF] & HCI_SUPP_COMMANDS_SET_MWS_CHANN_PARAM_MASK)
+
+#define HCI_SUPP_COMMANDS_SET_EXT_FRAME_CONF_MASK       0x80
+#define HCI_SUPP_COMMANDS_SET_EXT_FRAME_CONF_OFF        29
+#define HCI_SET_EXTERNAL_FRAME_CONFIGURATION_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_SET_EXT_FRAME_CONF_OFF] & HCI_SUPP_COMMANDS_SET_EXT_FRAME_CONF_MASK)
+
+
+/* Supported Commands (Byte 30) */
+#define HCI_SUPP_COMMANDS_SET_MWS_SIGNALING_MASK     0x01
+#define HCI_SUPP_COMMANDS_SET_MWS_SIGNALING_OFF      30
+#define HCI_SET_MWS_SIGNALING_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_SET_MWS_SIGNALING_OFF] & HCI_SUPP_COMMANDS_SET_MWS_SIGNALING_MASK)
+
+#define HCI_SUPP_COMMANDS_SET_MWS_TRANS_LAYER_MASK   0x02
+#define HCI_SUPP_COMMANDS_SET_MWS_TRANS_LAYER_OFF    30
+#define HCI_SET_MWS_TRANSPORT_LAYER_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_SET_MWS_TRANS_LAYER_OFF] & HCI_SUPP_COMMANDS_SET_MWS_TRANS_LAYER_MASK)
+
+#define HCI_SUPP_COMMANDS_SET_MWS_SCAN_FREQ_TABLE_MASK   0x04
+#define HCI_SUPP_COMMANDS_SET_MWS_SCAN_FREQ_TABLE_OFF    30
+#define HCI_SET_MWS_SCAN_FREQUENCY_TABLE_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_SET_MWS_SCAN_FREQ_TABLE_OFF] & HCI_SUPP_COMMANDS_SET_MWS_SCAN_FREQ_TABLE_MASK)
+
+#define HCI_SUPP_COMMANDS_GET_TRANS_LAYER_CONF_MASK      0x08
+#define HCI_SUPP_COMMANDS_GET_TRANS_LAYER_CONF_OFF    30
+#define HCI_GET_MWS_TRANS_LAYER_CFG_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_GET_TRANS_LAYER_CONF_OFF] & HCI_SUPP_COMMANDS_GET_TRANS_LAYER_CONF_MASK)
+
+#define HCI_SUPP_COMMANDS_SET_MWS_PATTERN_CONF_MASK      0x10
+#define HCI_SUPP_COMMANDS_SET_MWS_PATTERN_CONF_OFF       30
+#define HCI_SET_MWS_PATTERN_CONFIGURATION_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_SET_MWS_PATTERN_CONF_OFF] & HCI_SUPP_COMMANDS_SET_MWS_PATTERN_CONF_MASK)
+
+/* Supported Commands (Byte 30 bit 5) */
+#define HCI_SUPP_COMMANDS_SET_TRIG_CLK_CAP_MASK         0x20
+#define HCI_SUPP_COMMANDS_SET_TRIG_CLK_CAP_OFF          30
+#define HCI_SET_TRIG_CLK_CAP_SUPPORTED(x)               ((x)[HCI_SUPP_COMMANDS_SET_TRIG_CLK_CAP_OFF] & HCI_SUPP_COMMANDS_SET_TRIG_CLK_CAP_MASK)
+
+
+/* Supported Commands (Byte 30 bit 6-7) */
+#define HCI_SUPP_COMMANDS_TRUNCATED_PAGE             0x06
+#define HCI_SUPP_COMMANDS_TRUNCATED_PAGE_OFF         30
+#define HCI_TRUNCATED_PAGE_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_TRUNCATED_PAGE_OFF] & HCI_SUPP_COMMANDS_TRUNCATED_PAGE)
+
+#define HCI_SUPP_COMMANDS_TRUNCATED_PAGE_CANCEL             0x07
+#define HCI_SUPP_COMMANDS_TRUNCATED_PAGE_CANCEL_OFF         30
+#define HCI_TRUNCATED_PAGE_CANCEL_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_TRUNCATED_PAGE_CANCEL_OFF] & HCI_SUPP_COMMANDS_TRUNCATED_PAGE_CANCEL)
+
+/* Supported Commands (Byte 31 bit 6-7) */
+#define HCI_SUPP_COMMANDS_SET_CONLESS_SLAVE_BRCST             0x00
+#define HCI_SUPP_COMMANDS_SET_CONLESS_SLAVE_BRCST_OFF         31
+#define HCI_SET_CONLESS_SLAVE_BRCST_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_SET_CONLESS_SLAVE_BRCST_OFF] & HCI_SUPP_COMMANDS_SET_CONLESS_SLAVE_BRCST)
+
+#define HCI_SUPP_COMMANDS_SET_CONLESS_SLAVE_BRCST_RECEIVE             0x01
+#define HCI_SUPP_COMMANDS_SET_CONLESS_SLAVE_BRCST_RECEIVE_OFF         31
+#define HCI_SET_CONLESS_SLAVE_BRCST_RECEIVE_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_SET_CONLESS_SLAVE_BRCST_RECEIVE_OFF] & HCI_SUPP_COMMANDS_SET_CONLESS_SLAVE_BRCST_RECEIVE)
+
+#define HCI_SUPP_COMMANDS_START_SYNC_TRAIN             0x02
+#define HCI_SUPP_COMMANDS_START_SYNC_TRAIN_OFF         31
+#define HCI_START_SYNC_TRAIN_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_START_SYNC_TRAIN_OFF] & HCI_SUPP_COMMANDS_START_SYNC_TRAIN)
+
+#define HCI_SUPP_COMMANDS_RECEIVE_SYNC_TRAIN             0x03
+#define HCI_SUPP_COMMANDS_RECEIVE_SYNC_TRAIN_OFF         31
+#define HCI_RECEIVE_SYNC_TRAIN_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_RECEIVE_SYNC_TRAIN_OFF] & HCI_SUPP_COMMANDS_RECEIVE_SYNC_TRAIN)
+
+#define HCI_SUPP_COMMANDS_SET_RESERVED_LT_ADDR             0x04
+#define HCI_SUPP_COMMANDS_SET_RESERVED_LT_ADDR_OFF         31
+#define HCI_SET_RESERVED_LT_ADDR_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_SET_RESERVED_LT_ADDR_OFF] & HCI_SUPP_COMMANDS_SET_RESERVED_LT_ADDR)
+
+#define HCI_SUPP_COMMANDS_DELETE_RESERVED_LT_ADDR             0x05
+#define HCI_SUPP_COMMANDS_DELETE_RESERVED_LT_ADDR_OFF         31
+#define HCI_DELETE_RESERVED_LT_ADDR_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_DELETE_RESERVED_LT_ADDR_OFF] & HCI_SUPP_COMMANDS_DELETE_RESERVED_LT_ADDR)
+
+#define HCI_SUPP_COMMANDS_SET_CONLESS_SLAVE_BRCST_DATA             0x06
+#define HCI_SUPP_COMMANDS_SET_CONLESS_SLAVE_BRCST_DATA_OFF         31
+#define HCI_SET_CONLESS_SLAVE_BRCST_DATA_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_SET_CONLESS_SLAVE_BRCST_DATA_OFF] & HCI_SUPP_COMMANDS_SET_CONLESS_SLAVE_BRCST_DATA)
+
+#define HCI_SUPP_COMMANDS_READ_SYNC_TRAIN_PARAM             0x07
+#define HCI_SUPP_COMMANDS_READ_SYNC_TRAIN_PARAM_OFF         31
+#define HCI_READ_SYNC_TRAIN_PARAM_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_READ_SYNC_TRAIN_PARAM_OFF] & HCI_SUPP_COMMANDS_READ_SYNC_TRAIN_PARAM)
+
+/* Supported Commands (Byte 32 bit 0) */
+#define HCI_SUPP_COMMANDS_WRITE_SYNC_TRAIN_PARAM             0x00
+#define HCI_SUPP_COMMANDS_WRITE_SYNC_TRAIN_PARAM_OFF         32
+#define HCI_WRITE_SYNC_TRAIN_PARAM_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_WRITE_SYNC_TRAIN_PARAM_OFF] & HCI_SUPP_COMMANDS_WRITE_SYNC_TRAIN_PARAM)
+
+#define HCI_SUPP_COMMANDS_REMOTE_OOB_EXTENDED_DATA_REQUEST_REPLY_MASK   0x02
+#define HCI_SUPP_COMMANDS_REMOTE_OOB_EXTENDED_DATA_REQUEST_REPLY_OFF    32
+#define HCI_REMOTE_OOB_EXTENDED_DATA_REQUEST_REPLY_SUPPORTED(x) ((x)[HCI_SUPP_COMMANDS_REMOTE_OOB_EXTENDED_DATA_REQUEST_REPLY_OFF] & HCI_SUPP_COMMANDS_REMOTE_OOB_EXTENDED_DATA_REQUEST_REPLY_MASK)
+
+#define HCI_SUPP_COMMANDS_READ_SECURE_CONNS_SUPPORT_MASK    0x04
+#define HCI_SUPP_COMMANDS_READ_SECURE_CONNS_SUPPORT_OFF     32
+#define HCI_READ_SECURE_CONNS_SUPPORT_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_READ_SECURE_CONNS_SUPPORT_OFF] & HCI_SUPP_COMMANDS_READ_SECURE_CONNS_SUPPORT_MASK)
+
+#define HCI_SUPP_COMMANDS_WRITE_SECURE_CONNS_SUPPORT_MASK   0x08
+#define HCI_SUPP_COMMANDS_WRITE_SECURE_CONNS_SUPPORT_OFF    32
+#define HCI_WRITE_SECURE_CONNS_SUPPORT_SUPPORTED(x)  ((x)[HCI_SUPP_COMMANDS_WRITE_SECURE_CONNS_SUPPORT_OFF] & HCI_SUPP_COMMANDS_WRITE_SECURE_CONNS_SUPPORT_MASK)
+
+#define HCI_SUPP_COMMANDS_READ_AUTHENT_PAYLOAD_TOUT_MASK    0x10
+#define HCI_SUPP_COMMANDS_READ_AUTHENT_PAYLOAD_TOUT_OFF     32
+#define HCI_READ_AUTHENT_PAYLOAD_TOUT_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_READ_AUTHENT_PAYLOAD_TOUT_OFF] & HCI_SUPP_COMMANDS_READ_AUTHENT_PAYLOAD_TOUT_MASK)
+
+#define HCI_SUPP_COMMANDS_WRITE_AUTHENT_PAYLOAD_TOUT_MASK   0x20
+#define HCI_SUPP_COMMANDS_WRITE_AUTHENT_PAYLOAD_TOUT_OFF    32
+#define HCI_WRITE_AUTHENT_PAYLOAD_TOUT_SUPPORTED(x)  ((x)[HCI_SUPP_COMMANDS_WRITE_AUTHENT_PAYLOAD_TOUT_OFF] & HCI_SUPP_COMMANDS_WRITE_AUTHENT_PAYLOAD_TOUT_MASK)
+
+#define HCI_SUPP_COMMANDS_READ_LOCAL_OOB_EXTENDED_DATA_MASK 0x40
+#define HCI_SUPP_COMMANDS_READ_LOCAL_OOB_EXTENDED_DATA_OFF  32
+#define HCI_READ_LOCAL_OOB_EXTENDED_DATA_SUPPORTED(x)   ((x)[HCI_SUPP_COMMANDS_READ_LOCAL_OOB_EXTENDED_DATA_OFF] & HCI_SUPP_COMMANDS_READ_LOCAL_OOB_EXTENDED_DATA_MASK)
+
+#define HCI_SUPP_COMMANDS_WRITE_SECURE_CONNECTIONS_TEST_MODE_MASK   0x80
+#define HCI_SUPP_COMMANDS_WRITE_SECURE_CONNECTIONS_TEST_MODE_OFF    32
+#define HCI_WRITE_SECURE_CONNECTIONS_TEST_MODE_SUPPORTED(x) ((x)[HCI_SUPP_COMMANDS_WRITE_SECURE_CONNECTIONS_TEST_MODE_OFF] & HCI_SUPP_COMMANDS_WRITE_SECURE_CONNECTIONS_TEST_MODE_MASK)
+
+/* supported LE remote control connection parameter request reply */
+#define HCI_SUPP_COMMANDS_LE_RC_CONN_PARAM_UPD_RPY_MASK          0x10
+#define HCI_SUPP_COMMANDS_LE_RC_CONN_PARAM_UPD_RPY_OFF           33
+#define HCI_LE_RC_CONN_PARAM_UPD_RPY_SUPPORTED(x)      ((x)[HCI_SUPP_COMMANDS_LE_RC_CONN_PARAM_UPD_RPY_OFF] & HCI_SUPP_COMMANDS_LE_RC_CONN_PARAM_UPD_RPY_MASK)
+
+#define HCI_SUPP_COMMANDS_RLE_RC_CONN_PARAM_UPD_NEG_RPY_MASK          0x20
+#define HCI_SUPP_COMMANDS_LE_RC_CONN_PARAM_UPD_NEG_RPY_OFF           33
+#define HCI_LE_RC_CONN_PARAM_UPD_NEG_RPY_SUPPORTED(x)      ((x)[HCI_SUPP_COMMANDS_LE_RC_CONN_PARAM_UPD_NEG_RPY_OFF] & HCI_SUPP_COMMANDS_RLE_RC_CONN_PARAM_UPD_NEG_RPY_MASK)
+
+#endif
+
diff --git a/rtkbt/code/bt/stack/include/hcimsgs.h b/rtkbt/code/bt/stack/include/hcimsgs.h
new file mode 100755
index 0000000..b59cbfa
--- /dev/null
+++ b/rtkbt/code/bt/stack/include/hcimsgs.h
@@ -0,0 +1,811 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#ifndef HCIMSGS_H
+#define HCIMSGS_H
+
+#include "bt_target.h"
+#include "hcidefs.h"
+#include "bt_types.h"
+
+void bte_main_hci_send(BT_HDR *p_msg, UINT16 event);
+void bte_main_lpm_allow_bt_device_sleep(void);
+
+/* Message by message.... */
+
+extern BOOLEAN btsnd_hcic_inquiry(const LAP inq_lap, UINT8 duration,
+                                  UINT8 response_cnt);
+
+#define HCIC_PARAM_SIZE_INQUIRY 5
+
+
+#define HCIC_INQ_INQ_LAP_OFF    0
+#define HCIC_INQ_DUR_OFF        3
+#define HCIC_INQ_RSP_CNT_OFF    4
+                                                                    /* Inquiry */
+
+                                                                    /* Inquiry Cancel */
+extern BOOLEAN btsnd_hcic_inq_cancel(void);
+
+#define HCIC_PARAM_SIZE_INQ_CANCEL   0
+
+                                                                    /* Periodic Inquiry Mode */
+extern BOOLEAN btsnd_hcic_per_inq_mode(UINT16 max_period, UINT16 min_period,
+                                       const LAP inq_lap, UINT8 duration,
+                                       UINT8 response_cnt);
+
+#define HCIC_PARAM_SIZE_PER_INQ_MODE    9
+
+#define HCI_PER_INQ_MAX_INTRVL_OFF  0
+#define HCI_PER_INQ_MIN_INTRVL_OFF  2
+#define HCI_PER_INQ_INQ_LAP_OFF     4
+#define HCI_PER_INQ_DURATION_OFF    7
+#define HCI_PER_INQ_RSP_CNT_OFF     8
+                                                                    /* Periodic Inquiry Mode */
+
+                                                                    /* Exit Periodic Inquiry Mode */
+extern BOOLEAN btsnd_hcic_exit_per_inq(void);
+
+#define HCIC_PARAM_SIZE_EXIT_PER_INQ   0
+                                                                    /* Create Connection */
+extern BOOLEAN btsnd_hcic_create_conn(BD_ADDR dest, UINT16 packet_types,
+                                      UINT8 page_scan_rep_mode,
+                                      UINT8 page_scan_mode,
+                                      UINT16 clock_offset,
+                                      UINT8 allow_switch);
+
+#define HCIC_PARAM_SIZE_CREATE_CONN  13
+
+#define HCIC_CR_CONN_BD_ADDR_OFF        0
+#define HCIC_CR_CONN_PKT_TYPES_OFF      6
+#define HCIC_CR_CONN_REP_MODE_OFF       8
+#define HCIC_CR_CONN_PAGE_SCAN_MODE_OFF 9
+#define HCIC_CR_CONN_CLK_OFF_OFF        10
+#define HCIC_CR_CONN_ALLOW_SWITCH_OFF   12
+                                                                    /* Create Connection */
+
+                                                                    /* Disconnect */
+extern BOOLEAN btsnd_hcic_disconnect(UINT16 handle, UINT8 reason);
+
+#define HCIC_PARAM_SIZE_DISCONNECT 3
+
+#define HCI_DISC_HANDLE_OFF             0
+#define HCI_DISC_REASON_OFF             2
+                                                                    /* Disconnect */
+
+#if BTM_SCO_INCLUDED == TRUE
+                                                                    /* Add SCO Connection */
+extern BOOLEAN btsnd_hcic_add_SCO_conn (UINT16 handle, UINT16 packet_types);
+#endif /* BTM_SCO_INCLUDED */
+
+#define HCIC_PARAM_SIZE_ADD_SCO_CONN    4
+
+#define HCI_ADD_SCO_HANDLE_OFF          0
+#define HCI_ADD_SCO_PACKET_TYPES_OFF    2
+                                                                    /* Add SCO Connection */
+
+                                                                    /* Create Connection Cancel */
+extern BOOLEAN btsnd_hcic_create_conn_cancel(BD_ADDR dest);
+
+#define HCIC_PARAM_SIZE_CREATE_CONN_CANCEL  6
+
+#define HCIC_CR_CONN_CANCEL_BD_ADDR_OFF     0
+                                                                    /* Create Connection Cancel */
+
+                                                                    /* Accept Connection Request */
+extern BOOLEAN btsnd_hcic_accept_conn (BD_ADDR bd_addr, UINT8 role);
+
+#define HCIC_PARAM_SIZE_ACCEPT_CONN     7
+
+#define HCI_ACC_CONN_BD_ADDR_OFF        0
+#define HCI_ACC_CONN_ROLE_OFF           6
+                                                                    /* Accept Connection Request */
+
+                                                                    /* Reject Connection Request */
+extern BOOLEAN btsnd_hcic_reject_conn (BD_ADDR bd_addr, UINT8 reason);
+
+#define HCIC_PARAM_SIZE_REJECT_CONN      7
+
+#define HCI_REJ_CONN_BD_ADDR_OFF        0
+#define HCI_REJ_CONN_REASON_OFF         6
+                                                                    /* Reject Connection Request */
+
+                                                                    /* Link Key Request Reply */
+extern BOOLEAN btsnd_hcic_link_key_req_reply (BD_ADDR bd_addr,
+                                              LINK_KEY link_key);
+
+#define HCIC_PARAM_SIZE_LINK_KEY_REQ_REPLY   22
+
+#define HCI_LINK_KEY_REPLY_BD_ADDR_OFF  0
+#define HCI_LINK_KEY_REPLY_LINK_KEY_OFF 6
+                                                                    /* Link Key Request Reply  */
+
+                                                                    /* Link Key Request Neg Reply */
+extern BOOLEAN btsnd_hcic_link_key_neg_reply (BD_ADDR bd_addr);
+
+#define HCIC_PARAM_SIZE_LINK_KEY_NEG_REPLY   6
+
+#define HCI_LINK_KEY_NEG_REP_BD_ADR_OFF 0
+                                                                    /* Link Key Request Neg Reply  */
+
+                                                                    /* PIN Code Request Reply */
+extern BOOLEAN btsnd_hcic_pin_code_req_reply (BD_ADDR bd_addr,
+                                              UINT8 pin_code_len,
+                                              PIN_CODE pin_code);
+
+#define HCIC_PARAM_SIZE_PIN_CODE_REQ_REPLY   23
+
+#define HCI_PIN_CODE_REPLY_BD_ADDR_OFF  0
+#define HCI_PIN_CODE_REPLY_PIN_LEN_OFF  6
+#define HCI_PIN_CODE_REPLY_PIN_CODE_OFF 7
+                                                                    /* PIN Code Request Reply  */
+
+                                                                    /* Link Key Request Neg Reply */
+extern BOOLEAN btsnd_hcic_pin_code_neg_reply (BD_ADDR bd_addr);
+
+#define HCIC_PARAM_SIZE_PIN_CODE_NEG_REPLY   6
+
+#define HCI_PIN_CODE_NEG_REP_BD_ADR_OFF 0
+                                                                    /* Link Key Request Neg Reply  */
+
+                                                                    /* Change Connection Type */
+extern BOOLEAN btsnd_hcic_change_conn_type (UINT16 handle, UINT16 packet_types);
+
+#define HCIC_PARAM_SIZE_CHANGE_CONN_TYPE     4
+
+#define HCI_CHNG_PKT_TYPE_HANDLE_OFF    0
+#define HCI_CHNG_PKT_TYPE_PKT_TYPE_OFF  2
+                                                                    /* Change Connection Type */
+
+#define HCIC_PARAM_SIZE_CMD_HANDLE      2
+
+#define HCI_CMD_HANDLE_HANDLE_OFF       0
+
+extern BOOLEAN btsnd_hcic_auth_request (UINT16 handle);     /* Authentication Request */
+
+                                                                    /* Set Connection Encryption */
+extern BOOLEAN btsnd_hcic_set_conn_encrypt (UINT16 handle, BOOLEAN enable);
+#define HCIC_PARAM_SIZE_SET_CONN_ENCRYPT     3
+
+
+#define HCI_SET_ENCRYPT_HANDLE_OFF      0
+#define HCI_SET_ENCRYPT_ENABLE_OFF      2
+                                                                    /* Set Connection Encryption */
+
+                                                                    /* Remote Name Request */
+extern BOOLEAN btsnd_hcic_rmt_name_req (BD_ADDR bd_addr,
+                                        UINT8 page_scan_rep_mode,
+                                        UINT8 page_scan_mode,
+                                        UINT16 clock_offset);
+
+#define HCIC_PARAM_SIZE_RMT_NAME_REQ   10
+
+#define HCI_RMT_NAME_BD_ADDR_OFF        0
+#define HCI_RMT_NAME_REP_MODE_OFF       6
+#define HCI_RMT_NAME_PAGE_SCAN_MODE_OFF 7
+#define HCI_RMT_NAME_CLK_OFF_OFF        8
+                                                                    /* Remote Name Request */
+
+                                                                    /* Remote Name Request Cancel */
+extern BOOLEAN btsnd_hcic_rmt_name_req_cancel(BD_ADDR bd_addr);
+
+#define HCIC_PARAM_SIZE_RMT_NAME_REQ_CANCEL   6
+
+#define HCI_RMT_NAME_CANCEL_BD_ADDR_OFF       0
+                                                                    /* Remote Name Request Cancel */
+
+extern BOOLEAN btsnd_hcic_rmt_features_req(UINT16 handle);      /* Remote Features Request */
+
+                                                                    /* Remote Extended Features */
+extern BOOLEAN btsnd_hcic_rmt_ext_features(UINT16 handle, UINT8 page_num);
+
+#define HCIC_PARAM_SIZE_RMT_EXT_FEATURES   3
+
+#define HCI_RMT_EXT_FEATURES_HANDLE_OFF    0
+#define HCI_RMT_EXT_FEATURES_PAGE_NUM_OFF  2
+                                                                    /* Remote Extended Features */
+
+
+extern BOOLEAN btsnd_hcic_rmt_ver_req(UINT16 handle);           /* Remote Version Info Request */
+extern BOOLEAN btsnd_hcic_read_rmt_clk_offset(UINT16 handle);   /* Remote Clock Offset */
+extern BOOLEAN btsnd_hcic_read_lmp_handle(UINT16 handle);       /* Remote LMP Handle */
+
+extern BOOLEAN btsnd_hcic_setup_esco_conn (UINT16 handle,
+                                           UINT32 tx_bw, UINT32 rx_bw,
+                                           UINT16 max_latency, UINT16 voice,
+                                           UINT8 retrans_effort,
+                                           UINT16 packet_types);
+#define HCIC_PARAM_SIZE_SETUP_ESCO      17
+
+#define HCI_SETUP_ESCO_HANDLE_OFF       0
+#define HCI_SETUP_ESCO_TX_BW_OFF        2
+#define HCI_SETUP_ESCO_RX_BW_OFF        6
+#define HCI_SETUP_ESCO_MAX_LAT_OFF      10
+#define HCI_SETUP_ESCO_VOICE_OFF        12
+#define HCI_SETUP_ESCO_RETRAN_EFF_OFF   14
+#define HCI_SETUP_ESCO_PKT_TYPES_OFF    15
+
+
+extern BOOLEAN btsnd_hcic_accept_esco_conn (BD_ADDR bd_addr,
+                                            UINT32 tx_bw, UINT32 rx_bw,
+                                            UINT16 max_latency,
+                                            UINT16 content_fmt,
+                                            UINT8 retrans_effort,
+                                            UINT16 packet_types);
+#define HCIC_PARAM_SIZE_ACCEPT_ESCO     21
+
+#define HCI_ACCEPT_ESCO_BDADDR_OFF      0
+#define HCI_ACCEPT_ESCO_TX_BW_OFF       6
+#define HCI_ACCEPT_ESCO_RX_BW_OFF       10
+#define HCI_ACCEPT_ESCO_MAX_LAT_OFF     14
+#define HCI_ACCEPT_ESCO_VOICE_OFF       16
+#define HCI_ACCEPT_ESCO_RETRAN_EFF_OFF  18
+#define HCI_ACCEPT_ESCO_PKT_TYPES_OFF   19
+
+
+extern BOOLEAN btsnd_hcic_reject_esco_conn (BD_ADDR bd_addr, UINT8 reason);
+#define HCIC_PARAM_SIZE_REJECT_ESCO     7
+
+#define HCI_REJECT_ESCO_BDADDR_OFF      0
+#define HCI_REJECT_ESCO_REASON_OFF      6
+
+/* Hold Mode */
+extern BOOLEAN btsnd_hcic_hold_mode(UINT16 handle, UINT16 max_hold_period,
+                                    UINT16 min_hold_period);
+
+#define HCIC_PARAM_SIZE_HOLD_MODE       6
+
+#define HCI_HOLD_MODE_HANDLE_OFF        0
+#define HCI_HOLD_MODE_MAX_PER_OFF       2
+#define HCI_HOLD_MODE_MIN_PER_OFF       4
+                                                                    /* Hold Mode */
+
+                                                                    /* Sniff Mode */
+extern BOOLEAN btsnd_hcic_sniff_mode(UINT16 handle,
+                                     UINT16 max_sniff_period,
+                                     UINT16 min_sniff_period,
+                                     UINT16 sniff_attempt,
+                                     UINT16 sniff_timeout);
+
+#define HCIC_PARAM_SIZE_SNIFF_MODE      10
+
+
+#define HCI_SNIFF_MODE_HANDLE_OFF       0
+#define HCI_SNIFF_MODE_MAX_PER_OFF      2
+#define HCI_SNIFF_MODE_MIN_PER_OFF      4
+#define HCI_SNIFF_MODE_ATTEMPT_OFF      6
+#define HCI_SNIFF_MODE_TIMEOUT_OFF      8
+                                                                    /* Sniff Mode */
+
+extern BOOLEAN btsnd_hcic_exit_sniff_mode(UINT16 handle);       /* Exit Sniff Mode */
+
+                                                                    /* Park Mode */
+extern BOOLEAN btsnd_hcic_park_mode (UINT16 handle,
+                                     UINT16 beacon_max_interval,
+                                     UINT16 beacon_min_interval);
+
+#define HCIC_PARAM_SIZE_PARK_MODE       6
+
+#define HCI_PARK_MODE_HANDLE_OFF        0
+#define HCI_PARK_MODE_MAX_PER_OFF       2
+#define HCI_PARK_MODE_MIN_PER_OFF       4
+                                                                    /* Park Mode */
+
+extern BOOLEAN btsnd_hcic_exit_park_mode(UINT16 handle);  /* Exit Park Mode */
+
+                                                                    /* QoS Setup */
+extern BOOLEAN btsnd_hcic_qos_setup (UINT16 handle, UINT8 flags,
+                                     UINT8 service_type,
+                                     UINT32 token_rate, UINT32 peak,
+                                     UINT32 latency, UINT32 delay_var);
+
+#define HCIC_PARAM_SIZE_QOS_SETUP       20
+
+#define HCI_QOS_HANDLE_OFF              0
+#define HCI_QOS_FLAGS_OFF               2
+#define HCI_QOS_SERVICE_TYPE_OFF        3
+#define HCI_QOS_TOKEN_RATE_OFF          4
+#define HCI_QOS_PEAK_BANDWIDTH_OFF      8
+#define HCI_QOS_LATENCY_OFF             12
+#define HCI_QOS_DELAY_VAR_OFF           16
+                                                                    /* QoS Setup */
+
+                                                                    /* Switch Role Request */
+extern BOOLEAN btsnd_hcic_switch_role (BD_ADDR bd_addr, UINT8 role);
+
+#define HCIC_PARAM_SIZE_SWITCH_ROLE  7
+
+#define HCI_SWITCH_BD_ADDR_OFF          0
+#define HCI_SWITCH_ROLE_OFF             6
+                                                                    /* Switch Role Request */
+
+                                                                    /* Write Policy Settings */
+extern BOOLEAN btsnd_hcic_write_policy_set(UINT16 handle, UINT16 settings);
+
+#define HCIC_PARAM_SIZE_WRITE_POLICY_SET     4
+
+#define HCI_WRITE_POLICY_HANDLE_OFF          0
+#define HCI_WRITE_POLICY_SETTINGS_OFF        2
+                                                                    /* Write Policy Settings */
+
+                                                                    /* Write Default Policy Settings */
+extern BOOLEAN btsnd_hcic_write_def_policy_set(UINT16 settings);
+
+#define HCIC_PARAM_SIZE_WRITE_DEF_POLICY_SET     2
+
+#define HCI_WRITE_DEF_POLICY_SETTINGS_OFF        0
+                                                                    /* Write Default Policy Settings */
+
+/******************************************
+**    Lisbon Features
+*******************************************/
+#if BTM_SSR_INCLUDED == TRUE
+                                                                    /* Sniff Subrating */
+extern BOOLEAN btsnd_hcic_sniff_sub_rate(UINT16 handle, UINT16 max_lat,
+                                         UINT16 min_remote_lat,
+                                         UINT16 min_local_lat);
+
+#define HCIC_PARAM_SIZE_SNIFF_SUB_RATE             8
+
+#define HCI_SNIFF_SUB_RATE_HANDLE_OFF              0
+#define HCI_SNIFF_SUB_RATE_MAX_LAT_OFF             2
+#define HCI_SNIFF_SUB_RATE_MIN_REM_LAT_OFF         4
+#define HCI_SNIFF_SUB_RATE_MIN_LOC_LAT_OFF         6
+                                                                    /* Sniff Subrating */
+
+#else   /* BTM_SSR_INCLUDED == FALSE */
+
+#define btsnd_hcic_sniff_sub_rate(handle, max_lat, min_remote_lat, min_local_lat) FALSE
+
+#endif  /* BTM_SSR_INCLUDED */
+
+                                                                    /* Extended Inquiry Response */
+extern void btsnd_hcic_write_ext_inquiry_response(void *buffer, UINT8 fec_req);
+
+#define HCIC_PARAM_SIZE_EXT_INQ_RESP        241
+
+#define HCIC_EXT_INQ_RESP_FEC_OFF     0
+#define HCIC_EXT_INQ_RESP_RESPONSE    1
+                                                                   /* IO Capabilities Response */
+extern BOOLEAN btsnd_hcic_io_cap_req_reply (BD_ADDR bd_addr, UINT8 capability,
+                                            UINT8 oob_present, UINT8 auth_req);
+
+#define HCIC_PARAM_SIZE_IO_CAP_RESP     9
+
+#define HCI_IO_CAP_BD_ADDR_OFF          0
+#define HCI_IO_CAPABILITY_OFF           6
+#define HCI_IO_CAP_OOB_DATA_OFF         7
+#define HCI_IO_CAP_AUTH_REQ_OFF         8
+
+                                                                    /* IO Capabilities Req Neg Reply */
+extern BOOLEAN btsnd_hcic_io_cap_req_neg_reply (BD_ADDR bd_addr, UINT8 err_code);
+
+#define HCIC_PARAM_SIZE_IO_CAP_NEG_REPLY 7
+
+#define HCI_IO_CAP_NR_BD_ADDR_OFF        0
+#define HCI_IO_CAP_NR_ERR_CODE           6
+
+                                                         /* Read Local OOB Data */
+extern BOOLEAN btsnd_hcic_read_local_oob_data (void);
+
+#define HCIC_PARAM_SIZE_R_LOCAL_OOB     0
+
+
+extern BOOLEAN btsnd_hcic_user_conf_reply (BD_ADDR bd_addr, BOOLEAN is_yes);
+
+#define HCIC_PARAM_SIZE_UCONF_REPLY     6
+
+#define HCI_USER_CONF_BD_ADDR_OFF       0
+
+
+extern BOOLEAN btsnd_hcic_user_passkey_reply (BD_ADDR bd_addr, UINT32 value);
+
+#define HCIC_PARAM_SIZE_U_PKEY_REPLY    10
+
+#define HCI_USER_PASSKEY_BD_ADDR_OFF    0
+#define HCI_USER_PASSKEY_VALUE_OFF      6
+
+
+extern BOOLEAN btsnd_hcic_user_passkey_neg_reply (BD_ADDR bd_addr);
+
+#define HCIC_PARAM_SIZE_U_PKEY_NEG_REPLY 6
+
+#define HCI_USER_PASSKEY_NEG_BD_ADDR_OFF 0
+
+                                                            /* Remote OOB Data Request Reply */
+extern BOOLEAN btsnd_hcic_rem_oob_reply (BD_ADDR bd_addr, UINT8 *p_c,
+                                         UINT8 *p_r);
+
+#define HCIC_PARAM_SIZE_REM_OOB_REPLY   38
+
+#define HCI_REM_OOB_DATA_BD_ADDR_OFF    0
+#define HCI_REM_OOB_DATA_C_OFF          6
+#define HCI_REM_OOB_DATA_R_OFF          22
+
+                                                            /* Remote OOB Data Request Negative Reply */
+extern BOOLEAN btsnd_hcic_rem_oob_neg_reply (BD_ADDR bd_addr);
+
+#define HCIC_PARAM_SIZE_REM_OOB_NEG_REPLY   6
+
+#define HCI_REM_OOB_DATA_NEG_BD_ADDR_OFF    0
+
+                                                            /* Read Tx Power Level */
+extern BOOLEAN btsnd_hcic_read_inq_tx_power (void);
+
+#define HCIC_PARAM_SIZE_R_TX_POWER      0
+
+                                                            /* Read Default Erroneous Data Reporting */
+extern BOOLEAN btsnd_hcic_read_default_erroneous_data_rpt (void);
+
+#define HCIC_PARAM_SIZE_R_ERR_DATA_RPT      0
+
+#if L2CAP_NON_FLUSHABLE_PB_INCLUDED == TRUE
+extern BOOLEAN btsnd_hcic_enhanced_flush (UINT16 handle, UINT8 packet_type);
+
+#define HCIC_PARAM_SIZE_ENHANCED_FLUSH  3
+#endif
+
+
+extern BOOLEAN btsnd_hcic_send_keypress_notif (BD_ADDR bd_addr, UINT8 notif);
+
+#define HCIC_PARAM_SIZE_SEND_KEYPRESS_NOTIF    7
+
+#define HCI_SEND_KEYPRESS_NOTIF_BD_ADDR_OFF    0
+#define HCI_SEND_KEYPRESS_NOTIF_NOTIF_OFF      6
+
+/**** end of Simple Pairing Commands ****/
+
+                                                                    /* Store Current Settings */
+#define MAX_FILT_COND   (sizeof (BD_ADDR) + 1)
+
+extern BOOLEAN btsnd_hcic_set_event_filter(UINT8 filt_type,
+                                           UINT8 filt_cond_type,
+                                           UINT8 *filt_cond,
+                                           UINT8 filt_cond_len);
+
+#define HCIC_PARAM_SIZE_SET_EVT_FILTER  9
+
+#define HCI_FILT_COND_FILT_TYPE_OFF     0
+#define HCI_FILT_COND_COND_TYPE_OFF     1
+#define HCI_FILT_COND_FILT_OFF          2
+                                                                    /* Set Event Filter */
+
+                                                                /* Delete Stored Key */
+extern BOOLEAN btsnd_hcic_delete_stored_key (BD_ADDR bd_addr, BOOLEAN delete_all_flag);
+
+#define HCIC_PARAM_SIZE_DELETE_STORED_KEY        7
+
+#define HCI_DELETE_KEY_BD_ADDR_OFF      0
+#define HCI_DELETE_KEY_ALL_FLAG_OFF     6
+                                                                /* Delete Stored Key */
+
+                                                                /* Change Local Name */
+extern BOOLEAN btsnd_hcic_change_name(BD_NAME name);
+
+#define HCIC_PARAM_SIZE_CHANGE_NAME     BD_NAME_LEN
+
+#define HCI_CHANGE_NAME_NAME_OFF        0
+                                                                /* Change Local Name */
+
+
+#define HCIC_PARAM_SIZE_READ_CMD     0
+
+#define HCIC_PARAM_SIZE_WRITE_PARAM1     1
+
+#define HCIC_WRITE_PARAM1_PARAM_OFF      0
+
+#define HCIC_PARAM_SIZE_WRITE_PARAM2     2
+
+#define HCIC_WRITE_PARAM2_PARAM_OFF      0
+
+#define HCIC_PARAM_SIZE_WRITE_PARAM3     3
+
+#define HCIC_WRITE_PARAM3_PARAM_OFF      0
+
+#define HCIC_PARAM_SIZE_SET_AFH_CHANNELS    10
+
+extern BOOLEAN btsnd_hcic_write_pin_type(UINT8 type);                   /* Write PIN Type */
+extern BOOLEAN btsnd_hcic_write_auto_accept(UINT8 flag);                /* Write Auto Accept */
+extern BOOLEAN btsnd_hcic_read_name (void);                             /* Read Local Name */
+extern BOOLEAN btsnd_hcic_write_page_tout(UINT16 timeout);              /* Write Page Timout */
+extern BOOLEAN btsnd_hcic_write_scan_enable(UINT8 flag);                /* Write Scan Enable */
+extern BOOLEAN btsnd_hcic_write_pagescan_cfg(UINT16 interval,
+                                             UINT16 window);            /* Write Page Scan Activity */
+
+#define HCIC_PARAM_SIZE_WRITE_PAGESCAN_CFG  4
+
+#define HCI_SCAN_CFG_INTERVAL_OFF       0
+#define HCI_SCAN_CFG_WINDOW_OFF         2
+                                                                /* Write Page Scan Activity */
+
+                                                                /* Write Inquiry Scan Activity */
+extern BOOLEAN btsnd_hcic_write_inqscan_cfg(UINT16 interval, UINT16 window);
+
+#define HCIC_PARAM_SIZE_WRITE_INQSCAN_CFG    4
+
+#define HCI_SCAN_CFG_INTERVAL_OFF       0
+#define HCI_SCAN_CFG_WINDOW_OFF         2
+                                                                /* Write Inquiry Scan Activity */
+
+extern BOOLEAN btsnd_hcic_write_auth_enable(UINT8 flag);                 /* Write Authentication Enable */
+extern BOOLEAN btsnd_hcic_write_dev_class(DEV_CLASS dev);                /* Write Class of Device */
+extern BOOLEAN btsnd_hcic_write_voice_settings(UINT16 flags);            /* Write Voice Settings */
+
+/* Host Controller to Host flow control */
+#define HCI_HOST_FLOW_CTRL_OFF          0
+#define HCI_HOST_FLOW_CTRL_ACL_ON       1
+#define HCI_HOST_FLOW_CTRL_SCO_ON       2
+#define HCI_HOST_FLOW_CTRL_BOTH_ON      3
+
+extern BOOLEAN btsnd_hcic_write_auto_flush_tout(UINT16 handle,
+                                                UINT16 timeout);    /* Write Retransmit Timout */
+
+#define HCIC_PARAM_SIZE_WRITE_AUTO_FLUSH_TOUT    4
+
+#define HCI_FLUSH_TOUT_HANDLE_OFF       0
+#define HCI_FLUSH_TOUT_TOUT_OFF         2
+
+extern BOOLEAN btsnd_hcic_read_tx_power(UINT16 handle, UINT8 type);     /* Read Tx Power */
+
+#define HCIC_PARAM_SIZE_READ_TX_POWER    3
+
+#define HCI_READ_TX_POWER_HANDLE_OFF    0
+#define HCI_READ_TX_POWER_TYPE_OFF      2
+
+/* Read transmit power level parameter */
+#define HCI_READ_CURRENT                0x00
+#define HCI_READ_MAXIMUM                0x01
+
+extern BOOLEAN btsnd_hcic_host_num_xmitted_pkts (UINT8 num_handles,
+                                                 UINT16 *handle,
+                                                 UINT16 *num_pkts);         /* Set Host Buffer Size */
+
+#define HCIC_PARAM_SIZE_NUM_PKTS_DONE_SIZE    sizeof(btmsg_hcic_num_pkts_done_t)
+
+#define MAX_DATA_HANDLES        10
+
+#define HCI_PKTS_DONE_NUM_HANDLES_OFF   0
+#define HCI_PKTS_DONE_HANDLE_OFF        1
+#define HCI_PKTS_DONE_NUM_PKTS_OFF      3
+
+                                                                /* Write Link Supervision Timeout */
+extern BOOLEAN btsnd_hcic_write_link_super_tout(UINT8 local_controller_id, UINT16 handle, UINT16 timeout);
+
+#define HCIC_PARAM_SIZE_WRITE_LINK_SUPER_TOUT        4
+
+#define HCI_LINK_SUPER_TOUT_HANDLE_OFF  0
+#define HCI_LINK_SUPER_TOUT_TOUT_OFF    2
+                                                                /* Write Link Supervision Timeout */
+
+extern BOOLEAN btsnd_hcic_write_cur_iac_lap (UINT8 num_cur_iac,
+                                             LAP * const iac_lap);  /* Write Current IAC LAP */
+
+#define MAX_IAC_LAPS    0x40
+
+#define HCI_WRITE_IAC_LAP_NUM_OFF       0
+#define HCI_WRITE_IAC_LAP_LAP_OFF       1
+                                                                /* Write Current IAC LAP */
+
+extern BOOLEAN btsnd_hcic_get_link_quality (UINT16 handle);            /* Get Link Quality */
+extern BOOLEAN btsnd_hcic_read_rssi (UINT16 handle);                   /* Read RSSI */
+extern BOOLEAN btsnd_hcic_enable_test_mode (void);                     /* Enable Device Under Test Mode */
+extern BOOLEAN btsnd_hcic_write_pagescan_type(UINT8 type);             /* Write Page Scan Type */
+extern BOOLEAN btsnd_hcic_write_inqscan_type(UINT8 type);              /* Write Inquiry Scan Type */
+extern BOOLEAN btsnd_hcic_write_inquiry_mode(UINT8 type);              /* Write Inquiry Mode */
+
+#define HCI_DATA_HANDLE_MASK 0x0FFF
+
+#define HCID_GET_HANDLE_EVENT(p)  (UINT16)((*((UINT8 *)((p) + 1) + p->offset) + \
+                                           (*((UINT8 *)((p) + 1) + p->offset + 1) << 8)))
+
+#define HCID_GET_HANDLE(u16) (UINT16)((u16) & HCI_DATA_HANDLE_MASK)
+
+#define HCI_DATA_EVENT_MASK   3
+#define HCI_DATA_EVENT_OFFSET 12
+#define HCID_GET_EVENT(u16)   (UINT8)(((u16) >> HCI_DATA_EVENT_OFFSET) & HCI_DATA_EVENT_MASK)
+
+#define HCI_DATA_BCAST_MASK   3
+#define HCI_DATA_BCAST_OFFSET 10
+#define HCID_GET_BCAST(u16)   (UINT8)(((u16) >> HCI_DATA_BCAST_OFFSET) & HCI_DATA_BCAST_MASK)
+
+#define HCID_GET_ACL_LEN(p)     (UINT16)((*((UINT8 *)((p) + 1) + p->offset + 2) + \
+                                         (*((UINT8 *)((p) + 1) + p->offset + 3) << 8)))
+
+#define HCID_HEADER_SIZE      4
+
+#define HCID_GET_SCO_LEN(p)  (*((UINT8 *)((p) + 1) + p->offset + 2))
+
+extern void btsnd_hcic_vendor_spec_cmd (void *buffer, UINT16 opcode,
+                                        UINT8 len, UINT8 *p_data,
+                                        void *p_cmd_cplt_cback);
+
+#if (BLE_INCLUDED == TRUE)
+/********************************************************************************
+** BLE Commands
+**      Note: "local_controller_id" is for transport, not counted in HCI message size
+*********************************************************************************/
+#define HCIC_BLE_RAND_DI_SIZE                   8
+#define HCIC_BLE_ENCRYT_KEY_SIZE                16
+#define HCIC_BLE_IRK_SIZE                       16
+
+#define HCIC_PARAM_SIZE_SET_USED_FEAT_CMD       8
+#define HCIC_PARAM_SIZE_WRITE_RANDOM_ADDR_CMD    6
+#define HCIC_PARAM_SIZE_BLE_WRITE_ADV_PARAMS    15
+#define HCIC_PARAM_SIZE_BLE_WRITE_SCAN_RSP      31
+#define HCIC_PARAM_SIZE_WRITE_ADV_ENABLE        1
+#define HCIC_PARAM_SIZE_BLE_WRITE_SCAN_PARAM    7
+#define HCIC_PARAM_SIZE_BLE_WRITE_SCAN_ENABLE   2
+#define HCIC_PARAM_SIZE_BLE_CREATE_LL_CONN      25
+#define HCIC_PARAM_SIZE_BLE_CREATE_CONN_CANCEL  0
+#define HCIC_PARAM_SIZE_CLEAR_WHITE_LIST        0
+#define HCIC_PARAM_SIZE_ADD_WHITE_LIST          7
+#define HCIC_PARAM_SIZE_REMOVE_WHITE_LIST       7
+#define HCIC_PARAM_SIZE_BLE_UPD_LL_CONN_PARAMS  14
+#define HCIC_PARAM_SIZE_SET_HOST_CHNL_CLASS     5
+#define HCIC_PARAM_SIZE_READ_CHNL_MAP         2
+#define HCIC_PARAM_SIZE_BLE_READ_REMOTE_FEAT    2
+#define HCIC_PARAM_SIZE_BLE_ENCRYPT             32
+#define HCIC_PARAM_SIZE_BLE_RAND                0
+#define HCIC_PARAM_SIZE_WRITE_LE_HOST_SUPPORTED 2
+
+#define HCIC_BLE_RAND_DI_SIZE                   8
+#define HCIC_BLE_ENCRYT_KEY_SIZE                16
+#define HCIC_PARAM_SIZE_BLE_START_ENC           (4 + HCIC_BLE_RAND_DI_SIZE + HCIC_BLE_ENCRYT_KEY_SIZE)
+#define HCIC_PARAM_SIZE_LTK_REQ_REPLY           (2 + HCIC_BLE_ENCRYT_KEY_SIZE)
+#define HCIC_PARAM_SIZE_LTK_REQ_NEG_REPLY       2
+#define HCIC_BLE_CHNL_MAP_SIZE                  5
+#define HCIC_PARAM_SIZE_BLE_WRITE_ADV_DATA      31
+
+#define HCIC_PARAM_SIZE_BLE_ADD_DEV_RESOLVING_LIST      (7 + HCIC_BLE_IRK_SIZE * 2)
+#define HCIC_PARAM_SIZE_BLE_RM_DEV_RESOLVING_LIST       7
+#define HCIC_PARAM_SIZE_BLE_CLEAR_RESOLVING_LIST        0
+#define HCIC_PARAM_SIZE_BLE_READ_RESOLVING_LIST_SIZE    0
+#define HCIC_PARAM_SIZE_BLE_READ_RESOLVABLE_ADDR_PEER   7
+#define HCIC_PARAM_SIZE_BLE_READ_RESOLVABLE_ADDR_LOCAL  7
+#define HCIC_PARAM_SIZE_BLE_SET_ADDR_RESOLUTION_ENABLE  1
+#define HCIC_PARAM_SIZE_BLE_SET_RAND_PRIV_ADDR_TIMOUT   2
+#define HCIC_PARAM_SIZE_BLE_SET_DATA_LENGTH             6
+#define HCIC_PARAM_SIZE_BLE_WRITE_EXTENDED_SCAN_PARAM  11
+
+/* ULP HCI command */
+extern BOOLEAN btsnd_hcic_ble_set_evt_mask (BT_EVENT_MASK event_mask);
+
+extern BOOLEAN btsnd_hcic_ble_read_buffer_size (void);
+
+extern BOOLEAN btsnd_hcic_ble_read_local_spt_feat (void);
+
+extern BOOLEAN btsnd_hcic_ble_set_local_used_feat (UINT8 feat_set[8]);
+
+extern BOOLEAN btsnd_hcic_ble_set_random_addr (BD_ADDR random_addr);
+
+extern BOOLEAN btsnd_hcic_ble_write_adv_params (UINT16 adv_int_min, UINT16 adv_int_max,
+                                                UINT8 adv_type, UINT8 addr_type_own,
+                                                UINT8 addr_type_dir, BD_ADDR direct_bda,
+                                                UINT8 channel_map, UINT8 adv_filter_policy);
+
+extern BOOLEAN btsnd_hcic_ble_read_adv_chnl_tx_power (void);
+
+extern BOOLEAN btsnd_hcic_ble_set_adv_data (UINT8 data_len, UINT8 *p_data);
+
+extern BOOLEAN btsnd_hcic_ble_set_scan_rsp_data (UINT8 data_len, UINT8 *p_scan_rsp);
+
+extern BOOLEAN btsnd_hcic_ble_set_adv_enable (UINT8 adv_enable);
+
+extern BOOLEAN btsnd_hcic_ble_set_scan_params (UINT8 scan_type,
+                                               UINT16 scan_int, UINT16 scan_win,
+                                               UINT8 addr_type, UINT8 scan_filter_policy);
+
+extern BOOLEAN btsnd_hcic_ble_set_scan_enable (UINT8 scan_enable, UINT8 duplicate);
+
+extern BOOLEAN btsnd_hcic_ble_create_ll_conn (UINT16 scan_int, UINT16 scan_win,
+                                              UINT8 init_filter_policy, UINT8 addr_type_peer, BD_ADDR bda_peer, UINT8 addr_type_own,
+                                              UINT16 conn_int_min, UINT16 conn_int_max, UINT16 conn_latency, UINT16 conn_timeout,
+                                              UINT16 min_ce_len, UINT16 max_ce_len);
+
+extern BOOLEAN btsnd_hcic_ble_create_conn_cancel (void);
+
+extern BOOLEAN btsnd_hcic_ble_read_white_list_size (void);
+
+extern BOOLEAN btsnd_hcic_ble_clear_white_list (void);
+
+extern BOOLEAN btsnd_hcic_ble_add_white_list (UINT8 addr_type, BD_ADDR bda);
+
+extern BOOLEAN btsnd_hcic_ble_remove_from_white_list (UINT8 addr_type, BD_ADDR bda);
+
+extern BOOLEAN btsnd_hcic_ble_upd_ll_conn_params (UINT16 handle, UINT16 conn_int_min, UINT16 conn_int_max,
+                                                  UINT16 conn_latency, UINT16 conn_timeout, UINT16 min_len, UINT16 max_len);
+
+extern BOOLEAN btsnd_hcic_ble_set_host_chnl_class (UINT8 chnl_map[HCIC_BLE_CHNL_MAP_SIZE]);
+
+extern BOOLEAN btsnd_hcic_ble_read_chnl_map (UINT16 handle);
+
+extern BOOLEAN btsnd_hcic_ble_read_remote_feat ( UINT16 handle);
+
+extern BOOLEAN btsnd_hcic_ble_encrypt (UINT8* key, UINT8 key_len, UINT8* plain_text, UINT8 pt_len, void *p_cmd_cplt_cback);
+
+extern BOOLEAN btsnd_hcic_ble_rand (void *p_cmd_cplt_cback);
+
+extern BOOLEAN btsnd_hcic_ble_start_enc ( UINT16 handle,
+                                          UINT8 rand[HCIC_BLE_RAND_DI_SIZE],
+                                          UINT16 ediv, UINT8 ltk[HCIC_BLE_ENCRYT_KEY_SIZE]);
+
+extern BOOLEAN btsnd_hcic_ble_ltk_req_reply (UINT16 handle, UINT8 ltk[HCIC_BLE_ENCRYT_KEY_SIZE]);
+
+extern BOOLEAN btsnd_hcic_ble_ltk_req_neg_reply (UINT16 handle);
+
+extern BOOLEAN btsnd_hcic_ble_read_supported_states (void);
+
+extern BOOLEAN btsnd_hcic_ble_write_host_supported (UINT8 le_host_spt, UINT8 simul_le_host_spt);
+
+extern BOOLEAN btsnd_hcic_ble_read_host_supported (void);
+
+extern BOOLEAN btsnd_hcic_ble_receiver_test(UINT8 rx_freq);
+
+extern BOOLEAN btsnd_hcic_ble_transmitter_test(UINT8 tx_freq, UINT8 test_data_len,
+                                               UINT8 payload);
+extern BOOLEAN btsnd_hcic_ble_test_end(void);
+
+#if (defined BLE_LLT_INCLUDED) && (BLE_LLT_INCLUDED == TRUE)
+
+#define HCIC_PARAM_SIZE_BLE_RC_PARAM_REQ_REPLY           14
+extern BOOLEAN btsnd_hcic_ble_rc_param_req_reply(UINT16 handle,
+                                                 UINT16 conn_int_min, UINT16 conn_int_max,
+                                                 UINT16 conn_latency, UINT16 conn_timeout,
+                                                 UINT16 min_ce_len, UINT16 max_ce_len);
+
+#define HCIC_PARAM_SIZE_BLE_RC_PARAM_REQ_NEG_REPLY       3
+extern BOOLEAN btsnd_hcic_ble_rc_param_req_neg_reply(UINT16 handle, UINT8 reason);
+
+#endif /* BLE_LLT_INCLUDED */
+
+extern BOOLEAN btsnd_hcic_ble_set_data_length(UINT16 conn_handle, UINT16 tx_octets,
+                                                      UINT16 tx_time);
+
+extern BOOLEAN btsnd_hcic_ble_add_device_resolving_list (UINT8 addr_type_peer,
+                                                               BD_ADDR bda_peer,
+                                                               UINT8 irk_peer[HCIC_BLE_IRK_SIZE],
+                                                               UINT8 irk_local[HCIC_BLE_IRK_SIZE]);
+
+extern BOOLEAN btsnd_hcic_ble_rm_device_resolving_list (UINT8 addr_type_peer,
+                                                                BD_ADDR bda_peer);
+
+extern BOOLEAN btsnd_hcic_ble_clear_resolving_list (void);
+
+extern BOOLEAN btsnd_hcic_ble_read_resolvable_addr_peer (UINT8 addr_type_peer,
+                                                                 BD_ADDR bda_peer);
+
+extern BOOLEAN btsnd_hcic_ble_read_resolvable_addr_local (UINT8 addr_type_peer,
+                                                                 BD_ADDR bda_peer);
+
+extern BOOLEAN btsnd_hcic_ble_set_addr_resolution_enable (UINT8 addr_resolution_enable);
+
+extern BOOLEAN btsnd_hcic_ble_set_rand_priv_addr_timeout (UINT16 rpa_timout);
+
+#endif /* BLE_INCLUDED */
+
+extern BOOLEAN btsnd_hcic_read_authenticated_payload_tout(UINT16 handle);
+
+extern BOOLEAN btsnd_hcic_write_authenticated_payload_tout(UINT16 handle,
+                                                                   UINT16 timeout);
+
+#define HCIC_PARAM_SIZE_WRITE_AUTHENT_PAYLOAD_TOUT  4
+
+#define HCI__WRITE_AUTHENT_PAYLOAD_TOUT_HANDLE_OFF  0
+#define HCI__WRITE_AUTHENT_PAYLOAD_TOUT_TOUT_OFF    2
+
+#endif
diff --git a/rtkbt/code/bt/stack/include/hiddefs.h b/rtkbt/code/bt/stack/include/hiddefs.h
new file mode 100755
index 0000000..bf5d021
--- /dev/null
+++ b/rtkbt/code/bt/stack/include/hiddefs.h
@@ -0,0 +1,159 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2002-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains HID protocol definitions
+ *
+ ******************************************************************************/
+
+#ifndef HIDDEFS_H
+#define HIDDEFS_H
+
+#include "sdp_api.h"
+/*
+** tHID_STATUS: HID result codes, returned by HID and device and host functions.
+*/
+enum
+{
+   HID_SUCCESS,
+   HID_ERR_NOT_REGISTERED,
+   HID_ERR_ALREADY_REGISTERED,
+   HID_ERR_NO_RESOURCES,
+   HID_ERR_NO_CONNECTION,
+   HID_ERR_INVALID_PARAM,
+   HID_ERR_UNSUPPORTED,
+   HID_ERR_UNKNOWN_COMMAND,
+   HID_ERR_CONGESTED,
+   HID_ERR_CONN_IN_PROCESS,
+   HID_ERR_ALREADY_CONN,
+   HID_ERR_DISCONNECTING,
+   HID_ERR_SET_CONNABLE_FAIL,
+   /* Device specific error codes */
+   HID_ERR_HOST_UNKNOWN,
+   HID_ERR_L2CAP_FAILED,
+   HID_ERR_AUTH_FAILED,
+   HID_ERR_SDP_BUSY,
+   HID_ERR_GATT,
+
+   HID_ERR_INVALID = 0xFF
+};
+
+typedef UINT8 tHID_STATUS;
+
+#define    HID_L2CAP_CONN_FAIL (0x0100) /* Connection Attempt was made but failed */
+#define    HID_L2CAP_REQ_FAIL  (0x0200)  /* L2CAP_ConnectReq API failed */
+#define    HID_L2CAP_CFG_FAIL  (0x0400) /* L2CAP Configuration was rejected by peer */
+
+
+
+/* Define the HID transaction types
+*/
+#define HID_TRANS_HANDSHAKE     (0)
+#define HID_TRANS_CONTROL       (1)
+#define HID_TRANS_GET_REPORT    (4)
+#define HID_TRANS_SET_REPORT    (5)
+#define HID_TRANS_GET_PROTOCOL  (6)
+#define HID_TRANS_SET_PROTOCOL  (7)
+#define HID_TRANS_GET_IDLE      (8)
+#define HID_TRANS_SET_IDLE      (9)
+#define HID_TRANS_DATA          (10)
+#define HID_TRANS_DATAC         (11)
+
+#define HID_GET_TRANS_FROM_HDR(x) ((x >> 4) & 0x0f)
+#define HID_GET_PARAM_FROM_HDR(x) (x & 0x0f)
+#define HID_BUILD_HDR(t,p)  (UINT8)((t << 4) | (p & 0x0f))
+
+
+/* Parameters for Handshake
+*/
+#define HID_PAR_HANDSHAKE_RSP_SUCCESS               (0)
+#define HID_PAR_HANDSHAKE_RSP_NOT_READY             (1)
+#define HID_PAR_HANDSHAKE_RSP_ERR_INVALID_REP_ID    (2)
+#define HID_PAR_HANDSHAKE_RSP_ERR_UNSUPPORTED_REQ   (3)
+#define HID_PAR_HANDSHAKE_RSP_ERR_INVALID_PARAM     (4)
+#define HID_PAR_HANDSHAKE_RSP_ERR_UNKNOWN           (14)
+#define HID_PAR_HANDSHAKE_RSP_ERR_FATAL             (15)
+
+
+/* Parameters for Control
+*/
+#define HID_PAR_CONTROL_NOP                         (0)
+#define HID_PAR_CONTROL_HARD_RESET                  (1)
+#define HID_PAR_CONTROL_SOFT_RESET                  (2)
+#define HID_PAR_CONTROL_SUSPEND                     (3)
+#define HID_PAR_CONTROL_EXIT_SUSPEND                (4)
+#define HID_PAR_CONTROL_VIRTUAL_CABLE_UNPLUG        (5)
+
+
+/* Different report types in get, set, data
+*/
+#define HID_PAR_REP_TYPE_MASK                       (0x03)
+#define HID_PAR_REP_TYPE_OTHER                      (0x00)
+#define HID_PAR_REP_TYPE_INPUT                      (0x01)
+#define HID_PAR_REP_TYPE_OUTPUT                     (0x02)
+#define HID_PAR_REP_TYPE_FEATURE                    (0x03)
+
+/* Parameters for Get Report
+*/
+
+/* Buffer size in two bytes after Report ID */
+#define HID_PAR_GET_REP_BUFSIZE_FOLLOWS             (0x08)
+
+
+/* Parameters for Protocol Type
+*/
+#define HID_PAR_PROTOCOL_MASK                       (0x01)
+#define HID_PAR_PROTOCOL_REPORT                     (0x01)
+#define HID_PAR_PROTOCOL_BOOT_MODE                  (0x00)
+
+#define HID_PAR_REP_TYPE_MASK                       (0x03)
+
+/* Descriptor types in the SDP record
+*/
+#define HID_SDP_DESCRIPTOR_REPORT                   (0x22)
+#define HID_SDP_DESCRIPTOR_PHYSICAL                 (0x23)
+
+typedef struct desc_info
+{
+    UINT16 dl_len;
+    UINT8 *dsc_list;
+} tHID_DEV_DSCP_INFO;
+
+#define HID_SSR_PARAM_INVALID    0xffff
+
+typedef struct sdp_info
+{
+    char svc_name[HID_MAX_SVC_NAME_LEN];   /*Service Name */
+    char svc_descr[HID_MAX_SVC_DESCR_LEN]; /*Service Description*/
+    char prov_name[HID_MAX_PROV_NAME_LEN]; /*Provider Name.*/
+    UINT16    rel_num;    /*Release Number */
+    UINT16    hpars_ver;  /*HID Parser Version.*/
+    UINT16    ssr_max_latency; /* HIDSSRHostMaxLatency value, if HID_SSR_PARAM_INVALID not used*/
+    UINT16    ssr_min_tout; /* HIDSSRHostMinTimeout value, if HID_SSR_PARAM_INVALID not used* */
+    UINT8     sub_class;    /*Device Subclass.*/
+    UINT8     ctry_code;     /*Country Code.*/
+    UINT16    sup_timeout;/* Supervisory Timeout */
+
+    tHID_DEV_DSCP_INFO  dscp_info;   /* Descriptor list and Report list to be set in the SDP record.
+                                       This parameter is used if HID_DEV_USE_GLB_SDP_REC is set to FALSE.*/
+    tSDP_DISC_REC       *p_sdp_layer_rec;
+} tHID_DEV_SDP_INFO;
+
+#endif
+
diff --git a/rtkbt/code/bt/stack/include/hidh_api.h b/rtkbt/code/bt/stack/include/hidh_api.h
new file mode 100755
index 0000000..00b8fde
--- /dev/null
+++ b/rtkbt/code/bt/stack/include/hidh_api.h
@@ -0,0 +1,236 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2002-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+#ifndef HIDH_API_H
+#define HIDH_API_H
+
+#include "hiddefs.h"
+#include "sdp_api.h"
+
+/*****************************************************************************
+**  Constants
+*****************************************************************************/
+
+enum {
+    HID_SDP_NO_SERV_UUID = (SDP_ILLEGAL_PARAMETER+1),
+    HID_SDP_MANDATORY_MISSING
+};
+
+/* Attributes mask values to be used in HID_HostAddDev API */
+#define HID_VIRTUAL_CABLE        0x0001
+#define HID_NORMALLY_CONNECTABLE 0x0002
+#define HID_RECONN_INIT          0x0004
+#define HID_SDP_DISABLE          0x0008
+#define HID_BATTERY_POWER        0x0010
+#define HID_REMOTE_WAKE          0x0020
+#define HID_SUP_TOUT_AVLBL       0x0040
+#define HID_SSR_MAX_LATENCY      0x0080
+#define HID_SSR_MIN_TOUT         0x0100
+
+#define HID_SEC_REQUIRED         0x8000
+#define HID_ATTR_MASK_IGNORE     0
+
+
+/*****************************************************************************
+**  Type Definitions
+*****************************************************************************/
+
+typedef void (tHID_HOST_SDP_CALLBACK) (UINT16 result, UINT16 attr_mask,
+                                       tHID_DEV_SDP_INFO *sdp_rec );
+
+/* HID-HOST returns the events in the following table to the application via tHID_HOST_DEV_CALLBACK
+HID_HDEV_EVT_OPEN   Connected to device with Interrupt and Control Channels in OPEN state.
+                                                        Data = NA
+HID_HDEV_EVT_CLOSE  Connection with device is closed.   Data=reason code.
+HID_HDEV_EVT_RETRYING   Lost connection is being re-connected.
+                                                        Data=Retrial number
+HID_HDEV_EVT_IN_REPORT  Device sent an input report     Data=Report Type pdata= pointer to BT_HDR
+                                                        (GKI buffer having report data.)
+HID_HDEV_EVT_HANDSHAKE  Device sent SET_REPORT          Data=Result-code pdata=NA.
+HID_HDEV_EVT_VC_UNPLUG  Device sent Virtual Unplug      Data=NA. pdata=NA.
+*/
+
+enum
+{
+    HID_HDEV_EVT_OPEN,
+    HID_HDEV_EVT_CLOSE,
+    HID_HDEV_EVT_RETRYING,
+    HID_HDEV_EVT_INTR_DATA,
+    HID_HDEV_EVT_INTR_DATC,
+    HID_HDEV_EVT_CTRL_DATA,
+    HID_HDEV_EVT_CTRL_DATC,
+    HID_HDEV_EVT_HANDSHAKE,
+    HID_HDEV_EVT_VC_UNPLUG
+};
+typedef void (tHID_HOST_DEV_CALLBACK) (UINT8 dev_handle,
+                                       BD_ADDR addr,
+                                       UINT8 event, /* Event from HID-DEVICE. */
+                                       UINT32 data, /* Integer data corresponding to the event.*/
+                                       BT_HDR *p_buf ); /* Pointer data corresponding to the event. */
+
+
+/*****************************************************************************
+**  External Function Declarations
+*****************************************************************************/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+/*******************************************************************************
+**
+** Function         HID_HostGetSDPRecord
+**
+** Description      This function reads the device SDP record.
+**
+** Returns          tHID_STATUS
+**
+*******************************************************************************/
+extern tHID_STATUS HID_HostGetSDPRecord (BD_ADDR addr,
+                                         tSDP_DISCOVERY_DB *p_db,
+                                         UINT32 db_len,
+                                         tHID_HOST_SDP_CALLBACK *sdp_cback );
+
+/*******************************************************************************
+**
+** Function         HID_HostRegister
+**
+** Description      This function registers HID-Host with lower layers.
+**
+** Returns          tHID_STATUS
+**
+*******************************************************************************/
+extern tHID_STATUS HID_HostRegister (tHID_HOST_DEV_CALLBACK *dev_cback);
+
+/*******************************************************************************
+**
+** Function         HID_HostDeregister
+**
+** Description      This function is called when the host is about power down.
+**
+** Returns          tHID_STATUS
+**
+*******************************************************************************/
+extern tHID_STATUS HID_HostDeregister(void);
+
+/*******************************************************************************
+**
+** Function         HID_HostAddDev
+**
+** Description      This is called so HID-host may manage this device.
+**
+** Returns          tHID_STATUS
+**
+*******************************************************************************/
+extern tHID_STATUS HID_HostAddDev (BD_ADDR addr, UINT16 attr_mask,
+                                   UINT8 *handle );
+
+/*******************************************************************************
+**
+** Function         HID_HostRemoveDev
+**
+** Description      This removes the device from list devices that host has to manage.
+**
+** Returns          tHID_STATUS
+**
+*******************************************************************************/
+extern tHID_STATUS HID_HostRemoveDev (UINT8 dev_handle );
+
+/*******************************************************************************
+**
+** Function         HID_HostOpenDev
+**
+** Description      This function is called when the user wants to initiate a
+**                  connection attempt to a device.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern tHID_STATUS HID_HostOpenDev (UINT8 dev_handle );
+
+/*******************************************************************************
+**
+** Function         HID_HostWriteDev
+**
+** Description      This function is called when the host has a report to send.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern tHID_STATUS HID_HostWriteDev(UINT8 dev_handle, UINT8 t_type,
+                                    UINT8 param, UINT16 data,
+                                    UINT8 report_id, BT_HDR *pbuf);
+
+/*******************************************************************************
+**
+** Function         HID_HostCloseDev
+**
+** Description      This function disconnects the device.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern tHID_STATUS HID_HostCloseDev(UINT8 dev_handle );
+
+/*******************************************************************************
+** Function         HID_HostInit
+**
+** Description      This function initializes the control block and trace variable
+**
+** Returns          void
+*******************************************************************************/
+extern void HID_HostInit(void);
+
+/*******************************************************************************
+** Function        HID_HostSetSecurityLevel
+**
+** Description     This function sets the security level for the devices which
+**                 are marked by application as requiring security
+**
+** Returns         tHID_STATUS
+*******************************************************************************/
+extern tHID_STATUS HID_HostSetSecurityLevel( char serv_name[], UINT8 sec_lvl );
+
+/*******************************************************************************
+**
+** Function         hid_known_hid_device
+**
+** Description      This function checks if this device is  of type HID Device
+**
+** Returns          TRUE if device exists else FALSE
+**
+*******************************************************************************/
+BOOLEAN hid_known_hid_device (BD_ADDR bd_addr);
+
+
+/*******************************************************************************
+**
+** Function         HID_HostSetTraceLevel
+**
+** Description      This function sets the trace level for HID Host. If called with
+**                  a value of 0xFF, it simply reads the current trace level.
+**
+** Returns          the new (current) trace level
+**
+*******************************************************************************/
+extern UINT8 HID_HostSetTraceLevel (UINT8 new_level);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif  /* HIDH_API_H */
diff --git a/rtkbt/code/bt/stack/include/l2c_api.h b/rtkbt/code/bt/stack/include/l2c_api.h
new file mode 100755
index 0000000..e8b21fe
--- /dev/null
+++ b/rtkbt/code/bt/stack/include/l2c_api.h
@@ -0,0 +1,1239 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  this file contains the L2CAP API definitions
+ *
+ ******************************************************************************/
+#ifndef L2C_API_H
+#define L2C_API_H
+
+#include <stdbool.h>
+
+#include "bt_target.h"
+#include "l2cdefs.h"
+#include "hcidefs.h"
+
+/*****************************************************************************
+**  Constants
+*****************************************************************************/
+
+/* Define the minimum offset that L2CAP needs in a buffer. This is made up of
+** HCI type(1), len(2), handle(2), L2CAP len(2) and CID(2) => 9
+*/
+#define L2CAP_MIN_OFFSET    13     /* plus control(2), SDU length(2) */
+
+#define L2CAP_LCC_SDU_LENGTH    2
+#define L2CAP_LCC_OFFSET        (L2CAP_MIN_OFFSET + L2CAP_LCC_SDU_LENGTH)  /* plus SDU length(2) */
+
+/* ping result codes */
+#define L2CAP_PING_RESULT_OK        0       /* Ping reply received OK     */
+#define L2CAP_PING_RESULT_NO_LINK   1       /* Link could not be setup    */
+#define L2CAP_PING_RESULT_NO_RESP   2       /* Remote L2CAP did not reply */
+
+/* result code for L2CA_DataWrite() */
+#define L2CAP_DW_FAILED        FALSE
+#define L2CAP_DW_SUCCESS       TRUE
+#define L2CAP_DW_CONGESTED     2
+
+/* Values for priority parameter to L2CA_SetAclPriority */
+#define L2CAP_PRIORITY_NORMAL       0
+#define L2CAP_PRIORITY_HIGH         1
+
+/* Values for priority parameter to L2CA_SetTxPriority */
+#define L2CAP_CHNL_PRIORITY_HIGH    0
+#define L2CAP_CHNL_PRIORITY_MEDIUM  1
+#define L2CAP_CHNL_PRIORITY_LOW     2
+
+typedef UINT8 tL2CAP_CHNL_PRIORITY;
+
+/* Values for Tx/Rx data rate parameter to L2CA_SetChnlDataRate */
+#define L2CAP_CHNL_DATA_RATE_HIGH       3
+#define L2CAP_CHNL_DATA_RATE_MEDIUM     2
+#define L2CAP_CHNL_DATA_RATE_LOW        1
+#define L2CAP_CHNL_DATA_RATE_NO_TRAFFIC 0
+
+typedef UINT8 tL2CAP_CHNL_DATA_RATE;
+
+/* Data Packet Flags  (bits 2-15 are reserved) */
+/* layer specific 14-15 bits are used for FCR SAR */
+#define L2CAP_FLUSHABLE_MASK        0x0003
+#define L2CAP_FLUSHABLE_CH_BASED    0x0000
+#define L2CAP_FLUSHABLE_PKT         0x0001
+#define L2CAP_NON_FLUSHABLE_PKT     0x0002
+
+
+/* L2CA_FlushChannel num_to_flush definitions */
+#define L2CAP_FLUSH_CHANS_ALL       0xffff
+#define L2CAP_FLUSH_CHANS_GET       0x0000
+
+
+/* special CID for Multi-AV for reporting congestion */
+#define L2CAP_MULTI_AV_CID          0
+
+/* length of the HCI header block */
+/* HCI header(4) + SNK count(1) + FCR bits(1) + AV data length(2) */
+#define L2CAP_MULTI_AV_HCI_HDR_LEN	8
+
+/* length of padding for 4 bytes align */
+#define L2CAP_MULTI_AV_PADDING_LEN  2
+
+/* length of the HCI header block with padding for FCR */
+/* HCI header(4) + SNK count(1) + FCR bits(1) + AV data length(2) + padding(2) */
+#define L2CAP_MULTI_AV_HCI_HDR_LEN_WITH_PADDING	10
+
+/* length of the L2CAP header block */
+/* HCI header(4) + L2CAP header(4) + padding(4) or control word(2) + FCS(2) */
+#define L2CAP_MULTI_AV_L2C_HDR_LEN	12
+
+/* definition used for L2CA_SetDesireRole */
+#define L2CAP_ROLE_SLAVE            HCI_ROLE_SLAVE
+#define L2CAP_ROLE_MASTER           HCI_ROLE_MASTER
+#define L2CAP_ROLE_ALLOW_SWITCH     0x80    /* set this bit to allow switch at create conn */
+#define L2CAP_ROLE_DISALLOW_SWITCH  0x40    /* set this bit to disallow switch at create conn */
+#define L2CAP_ROLE_CHECK_SWITCH     0xC0
+
+
+/* Values for 'allowed_modes' field passed in structure tL2CAP_ERTM_INFO
+*/
+#define L2CAP_FCR_CHAN_OPT_BASIC    (1 << L2CAP_FCR_BASIC_MODE)
+#define L2CAP_FCR_CHAN_OPT_ERTM     (1 << L2CAP_FCR_ERTM_MODE)
+#define L2CAP_FCR_CHAN_OPT_STREAM   (1 << L2CAP_FCR_STREAM_MODE)
+
+#define L2CAP_FCR_CHAN_OPT_ALL_MASK (L2CAP_FCR_CHAN_OPT_BASIC | L2CAP_FCR_CHAN_OPT_ERTM | L2CAP_FCR_CHAN_OPT_STREAM)
+
+/* Validity check for PSM.  PSM values must be odd.  Also, all PSM values must
+** be assigned such that the least significant bit of the most sigificant
+** octet equals zero.
+*/
+#define L2C_INVALID_PSM(psm)       (((psm) & 0x0101) != 0x0001)
+#define L2C_IS_VALID_PSM(psm)      (((psm) & 0x0101) == 0x0001)
+#define L2C_IS_VALID_LE_PSM(psm)   (((psm) > 0x0000) && ((psm) < 0x0100))
+
+/*****************************************************************************
+**  Type Definitions
+*****************************************************************************/
+
+typedef struct
+{
+#define L2CAP_FCR_BASIC_MODE    0x00
+#define L2CAP_FCR_ERTM_MODE     0x03
+#define L2CAP_FCR_STREAM_MODE   0x04
+#define L2CAP_FCR_LE_COC_MODE   0x05
+
+    UINT8  mode;
+
+    UINT8  tx_win_sz;
+    UINT8  max_transmit;
+    UINT16 rtrans_tout;
+    UINT16 mon_tout;
+    UINT16 mps;
+} tL2CAP_FCR_OPTS;
+
+/* Define a structure to hold the configuration parameters. Since the
+** parameters are optional, for each parameter there is a boolean to
+** use to signify its presence or absence.
+*/
+typedef struct
+{
+    UINT16      result;                 /* Only used in confirm messages */
+    BOOLEAN     mtu_present;
+    UINT16      mtu;
+    BOOLEAN     qos_present;
+    FLOW_SPEC   qos;
+    BOOLEAN     flush_to_present;
+    UINT16      flush_to;
+    BOOLEAN     fcr_present;
+    tL2CAP_FCR_OPTS fcr;
+    BOOLEAN     fcs_present;            /* Optionally bypasses FCS checks */
+    UINT8       fcs;                    /* '0' if desire is to bypass FCS, otherwise '1' */
+    BOOLEAN               ext_flow_spec_present;
+    tHCI_EXT_FLOW_SPEC    ext_flow_spec;
+    UINT16      flags;                  /* bit 0: 0-no continuation, 1-continuation */
+} tL2CAP_CFG_INFO;
+
+/* Define a structure to hold the configuration parameter for LE L2CAP connection
+** oriented channels.
+*/
+typedef struct
+{
+    UINT16  mtu;
+    UINT16  mps;
+    UINT16  credits;
+} tL2CAP_LE_CFG_INFO;
+
+/* L2CAP channel configured field bitmap */
+#define L2CAP_CH_CFG_MASK_MTU           0x0001
+#define L2CAP_CH_CFG_MASK_QOS           0x0002
+#define L2CAP_CH_CFG_MASK_FLUSH_TO      0x0004
+#define L2CAP_CH_CFG_MASK_FCR           0x0008
+#define L2CAP_CH_CFG_MASK_FCS           0x0010
+#define L2CAP_CH_CFG_MASK_EXT_FLOW_SPEC 0x0020
+
+typedef UINT16 tL2CAP_CH_CFG_BITS;
+
+/*********************************
+**  Callback Functions Prototypes
+**********************************/
+
+/* Connection indication callback prototype. Parameters are
+**              BD Address of remote
+**              Local CID assigned to the connection
+**              PSM that the remote wants to connect to
+**              Identifier that the remote sent
+*/
+typedef void (tL2CA_CONNECT_IND_CB) (BD_ADDR, UINT16, UINT16, UINT8);
+
+
+/* Connection confirmation callback prototype. Parameters are
+**              Local CID
+**              Result - 0 = connected, non-zero means failure reason
+*/
+typedef void (tL2CA_CONNECT_CFM_CB) (UINT16, UINT16);
+
+
+/* Connection pending callback prototype. Parameters are
+**              Local CID
+*/
+typedef void (tL2CA_CONNECT_PND_CB) (UINT16);
+
+
+/* Configuration indication callback prototype. Parameters are
+**              Local CID assigned to the connection
+**              Pointer to configuration info
+*/
+typedef void (tL2CA_CONFIG_IND_CB) (UINT16, tL2CAP_CFG_INFO *);
+
+
+/* Configuration confirm callback prototype. Parameters are
+**              Local CID assigned to the connection
+**              Pointer to configuration info
+*/
+typedef void (tL2CA_CONFIG_CFM_CB) (UINT16, tL2CAP_CFG_INFO *);
+
+
+/* Disconnect indication callback prototype. Parameters are
+**              Local CID
+**              Boolean whether upper layer should ack this
+*/
+typedef void (tL2CA_DISCONNECT_IND_CB) (UINT16, BOOLEAN);
+
+
+/* Disconnect confirm callback prototype. Parameters are
+**              Local CID
+**              Result
+*/
+typedef void (tL2CA_DISCONNECT_CFM_CB) (UINT16, UINT16);
+
+
+/* QOS Violation indication callback prototype. Parameters are
+**              BD Address of violating device
+*/
+typedef void (tL2CA_QOS_VIOLATION_IND_CB) (BD_ADDR);
+
+
+/* Data received indication callback prototype. Parameters are
+**              Local CID
+**              Address of buffer
+*/
+typedef void (tL2CA_DATA_IND_CB) (UINT16, BT_HDR *);
+
+
+/* Echo response callback prototype. Note that this is not included in the
+** registration information, but is passed to L2CAP as part of the API to
+** actually send an echo request. Parameters are
+**              Result
+*/
+typedef void (tL2CA_ECHO_RSP_CB) (UINT16);
+
+
+/* Callback function prototype to pass broadcom specific echo response  */
+/* to the upper layer                                                   */
+typedef void (tL2CA_ECHO_DATA_CB) (BD_ADDR, UINT16, UINT8 *);
+
+
+/* Congestion status callback protype. This callback is optional. If
+** an application tries to send data when the transmit queue is full,
+** the data will anyways be dropped. The parameter is:
+**              Local CID
+**              TRUE if congested, FALSE if uncongested
+*/
+typedef void (tL2CA_CONGESTION_STATUS_CB) (UINT16, BOOLEAN);
+
+/* Callback prototype for number of packets completed events.
+** This callback notifies the application when Number of Completed Packets
+** event has been received.
+** This callback is originally designed for 3DG devices.
+** The parameter is:
+**          peer BD_ADDR
+*/
+typedef void (tL2CA_NOCP_CB) (BD_ADDR);
+
+/* Transmit complete callback protype. This callback is optional. If
+** set, L2CAP will call it when packets are sent or flushed. If the
+** count is 0xFFFF, it means all packets are sent for that CID (eRTM
+** mode only). The parameters are:
+**              Local CID
+**              Number of SDUs sent or dropped
+*/
+typedef void (tL2CA_TX_COMPLETE_CB) (UINT16, UINT16);
+
+/* Define the structure that applications use to register with
+** L2CAP. This structure includes callback functions. All functions
+** MUST be provided, with the exception of the "connect pending"
+** callback and "congestion status" callback.
+*/
+typedef struct
+{
+    tL2CA_CONNECT_IND_CB        *pL2CA_ConnectInd_Cb;
+    tL2CA_CONNECT_CFM_CB        *pL2CA_ConnectCfm_Cb;
+    tL2CA_CONNECT_PND_CB        *pL2CA_ConnectPnd_Cb;
+    tL2CA_CONFIG_IND_CB         *pL2CA_ConfigInd_Cb;
+    tL2CA_CONFIG_CFM_CB         *pL2CA_ConfigCfm_Cb;
+    tL2CA_DISCONNECT_IND_CB     *pL2CA_DisconnectInd_Cb;
+    tL2CA_DISCONNECT_CFM_CB     *pL2CA_DisconnectCfm_Cb;
+    tL2CA_QOS_VIOLATION_IND_CB  *pL2CA_QoSViolationInd_Cb;
+    tL2CA_DATA_IND_CB           *pL2CA_DataInd_Cb;
+    tL2CA_CONGESTION_STATUS_CB  *pL2CA_CongestionStatus_Cb;
+    tL2CA_TX_COMPLETE_CB        *pL2CA_TxComplete_Cb;
+
+} tL2CAP_APPL_INFO;
+
+/* Define the structure that applications use to create or accept
+** connections with enhanced retransmission mode.
+*/
+typedef struct
+{
+    UINT8       preferred_mode;
+    UINT8       allowed_modes;
+    UINT16      user_rx_buf_size;
+    UINT16      user_tx_buf_size;
+    UINT16      fcr_rx_buf_size;
+    UINT16      fcr_tx_buf_size;
+
+} tL2CAP_ERTM_INFO;
+
+#define L2CA_REGISTER(a,b,c)              L2CA_Register(a,(tL2CAP_APPL_INFO *)b)
+#define L2CA_DEREGISTER(a)                L2CA_Deregister(a)
+#define L2CA_CONNECT_REQ(a,b,c)           L2CA_ErtmConnectReq(a,b,c)
+#define L2CA_CONNECT_RSP(a,b,c,d,e,f)     L2CA_ErtmConnectRsp(a,b,c,d,e,f)
+#define L2CA_CONFIG_REQ(a,b)              L2CA_ConfigReq(a,b)
+#define L2CA_CONFIG_RSP(a,b)              L2CA_ConfigRsp(a,b)
+#define L2CA_DISCONNECT_REQ(a)            L2CA_DisconnectReq(a)
+#define L2CA_DISCONNECT_RSP(a)            L2CA_DisconnectRsp(a)
+#define L2CA_DATA_WRITE(a, b)             L2CA_DataWrite(a, b)
+#define L2CA_REGISTER_COC(a,b,c)          L2CA_RegisterLECoc(a,(tL2CAP_APPL_INFO *)b)
+#define L2CA_DEREGISTER_COC(a)            L2CA_DeregisterLECoc(a)
+#define L2CA_CONNECT_COC_REQ(a,b,c)       L2CA_ConnectLECocReq(a,b,c)
+#define L2CA_CONNECT_COC_RSP(a,b,c,d,e,f) L2CA_ConnectLECocRsp(a,b,c,d,e,f)
+#define L2CA_GET_PEER_COC_CONFIG(a, b)    L2CA_GetPeerLECocConfig(a, b)
+
+/*****************************************************************************
+**  External Function Declarations
+*****************************************************************************/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+/*******************************************************************************
+**
+** Function         L2CA_Register
+**
+** Description      Other layers call this function to register for L2CAP
+**                  services.
+**
+** Returns          PSM to use or zero if error. Typically, the PSM returned
+**                  is the same as was passed in, but for an outgoing-only
+**                  connection to a dynamic PSM, a "virtual" PSM is returned
+**                  and should be used in the calls to L2CA_ConnectReq() and
+**                  BTM_SetSecurityLevel().
+**
+*******************************************************************************/
+extern UINT16 L2CA_Register (UINT16 psm, tL2CAP_APPL_INFO *p_cb_info);
+
+/*******************************************************************************
+**
+** Function         L2CA_Deregister
+**
+** Description      Other layers call this function to deregister for L2CAP
+**                  services.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void L2CA_Deregister (UINT16 psm);
+
+/*******************************************************************************
+**
+** Function         L2CA_AllocatePSM
+**
+** Description      Other layers call this function to find an unused PSM for L2CAP
+**                  services.
+**
+** Returns          PSM to use.
+**
+*******************************************************************************/
+extern UINT16 L2CA_AllocatePSM(void);
+
+/*******************************************************************************
+**
+** Function         L2CA_ConnectReq
+**
+** Description      Higher layers call this function to create an L2CAP connection.
+**                  Note that the connection is not established at this time, but
+**                  connection establishment gets started. The callback function
+**                  will be invoked when connection establishes or fails.
+**
+** Returns          the CID of the connection, or 0 if it failed to start
+**
+*******************************************************************************/
+extern UINT16 L2CA_ConnectReq (UINT16 psm, BD_ADDR p_bd_addr);
+
+/*******************************************************************************
+**
+** Function         L2CA_ConnectRsp
+**
+** Description      Higher layers call this function to accept an incoming
+**                  L2CAP connection, for which they had gotten an connect
+**                  indication callback.
+**
+** Returns          TRUE for success, FALSE for failure
+**
+*******************************************************************************/
+extern BOOLEAN L2CA_ConnectRsp (BD_ADDR p_bd_addr, UINT8 id, UINT16 lcid,
+                                        UINT16 result, UINT16 status);
+
+/*******************************************************************************
+**
+** Function         L2CA_ErtmConnectReq
+**
+** Description      Higher layers call this function to create an L2CAP connection
+**                  that needs to use Enhanced Retransmission Mode.
+**                  Note that the connection is not established at this time, but
+**                  connection establishment gets started. The callback function
+**                  will be invoked when connection establishes or fails.
+**
+** Returns          the CID of the connection, or 0 if it failed to start
+**
+*******************************************************************************/
+extern UINT16 L2CA_ErtmConnectReq (UINT16 psm, BD_ADDR p_bd_addr,
+                                           tL2CAP_ERTM_INFO *p_ertm_info);
+
+/*******************************************************************************
+**
+** Function         L2CA_RegisterLECoc
+**
+** Description      Other layers call this function to register for L2CAP
+**                  Connection Oriented Channel.
+**
+** Returns          PSM to use or zero if error. Typically, the PSM returned
+**                  is the same as was passed in, but for an outgoing-only
+**                  connection to a dynamic PSM, a "virtual" PSM is returned
+**                  and should be used in the calls to L2CA_ConnectLECocReq()
+**                  and BTM_SetSecurityLevel().
+**
+*******************************************************************************/
+extern UINT16 L2CA_RegisterLECoc (UINT16 psm, tL2CAP_APPL_INFO *p_cb_info);
+
+/*******************************************************************************
+**
+** Function         L2CA_DeregisterLECoc
+**
+** Description      Other layers call this function to deregister for L2CAP
+**                  Connection Oriented Channel.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void L2CA_DeregisterLECoc (UINT16 psm);
+
+/*******************************************************************************
+**
+** Function         L2CA_ConnectLECocReq
+**
+** Description      Higher layers call this function to create an L2CAP LE COC.
+**                  Note that the connection is not established at this time, but
+**                  connection establishment gets started. The callback function
+**                  will be invoked when connection establishes or fails.
+**
+** Returns          the CID of the connection, or 0 if it failed to start
+**
+*******************************************************************************/
+extern UINT16 L2CA_ConnectLECocReq (UINT16 psm, BD_ADDR p_bd_addr, tL2CAP_LE_CFG_INFO *p_cfg);
+
+/*******************************************************************************
+**
+** Function         L2CA_ConnectLECocRsp
+**
+** Description      Higher layers call this function to accept an incoming
+**                  L2CAP LE COC connection, for which they had gotten an connect
+**                  indication callback.
+**
+** Returns          TRUE for success, FALSE for failure
+**
+*******************************************************************************/
+extern BOOLEAN L2CA_ConnectLECocRsp (BD_ADDR p_bd_addr, UINT8 id, UINT16 lcid, UINT16 result,
+                                         UINT16 status, tL2CAP_LE_CFG_INFO *p_cfg);
+
+/*******************************************************************************
+**
+**  Function         L2CA_GetPeerLECocConfig
+**
+**  Description      Get peers configuration for LE Connection Oriented Channel.
+**
+**  Return value:    TRUE if peer is connected
+**
+*******************************************************************************/
+extern BOOLEAN L2CA_GetPeerLECocConfig (UINT16 lcid, tL2CAP_LE_CFG_INFO* peer_cfg);
+
+// This function sets the callback routines for the L2CAP connection referred to by
+// |local_cid|. The callback routines can only be modified for outgoing connections
+// established by |L2CA_ConnectReq| or accepted incoming connections. |callbacks|
+// must not be NULL. This function returns true if the callbacks could be updated,
+// false if not (e.g. |local_cid| was not found).
+bool L2CA_SetConnectionCallbacks(uint16_t local_cid, const tL2CAP_APPL_INFO *callbacks);
+
+/*******************************************************************************
+**
+** Function         L2CA_ErtmConnectRsp
+**
+** Description      Higher layers call this function to accept an incoming
+**                  L2CAP connection, for which they had gotten an connect
+**                  indication callback, and for which the higher layer wants
+**                  to use Enhanced Retransmission Mode.
+**
+** Returns          TRUE for success, FALSE for failure
+**
+*******************************************************************************/
+extern BOOLEAN  L2CA_ErtmConnectRsp (BD_ADDR p_bd_addr, UINT8 id, UINT16 lcid,
+                                             UINT16 result, UINT16 status,
+                                             tL2CAP_ERTM_INFO *p_ertm_info);
+
+/*******************************************************************************
+**
+** Function         L2CA_ConfigReq
+**
+** Description      Higher layers call this function to send configuration.
+**
+** Returns          TRUE if configuration sent, else FALSE
+**
+*******************************************************************************/
+extern BOOLEAN L2CA_ConfigReq (UINT16 cid, tL2CAP_CFG_INFO *p_cfg);
+
+/*******************************************************************************
+**
+** Function         L2CA_ConfigRsp
+**
+** Description      Higher layers call this function to send a configuration
+**                  response.
+**
+** Returns          TRUE if configuration response sent, else FALSE
+**
+*******************************************************************************/
+extern BOOLEAN L2CA_ConfigRsp (UINT16 cid, tL2CAP_CFG_INFO *p_cfg);
+
+/*******************************************************************************
+**
+** Function         L2CA_DisconnectReq
+**
+** Description      Higher layers call this function to disconnect a channel.
+**
+** Returns          TRUE if disconnect sent, else FALSE
+**
+*******************************************************************************/
+extern BOOLEAN L2CA_DisconnectReq (UINT16 cid);
+
+/*******************************************************************************
+**
+** Function         L2CA_DisconnectRsp
+**
+** Description      Higher layers call this function to acknowledge the
+**                  disconnection of a channel.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern BOOLEAN L2CA_DisconnectRsp (UINT16 cid);
+
+/*******************************************************************************
+**
+** Function         L2CA_DataWrite
+**
+** Description      Higher layers call this function to write data.
+**
+** Returns          L2CAP_DW_SUCCESS, if data accepted, else FALSE
+**                  L2CAP_DW_CONGESTED, if data accepted and the channel is congested
+**                  L2CAP_DW_FAILED, if error
+**
+*******************************************************************************/
+extern UINT8 L2CA_DataWrite (UINT16 cid, BT_HDR *p_data);
+
+/*******************************************************************************
+**
+** Function         L2CA_Ping
+**
+** Description      Higher layers call this function to send an echo request.
+**
+** Returns          TRUE if echo request sent, else FALSE.
+**
+*******************************************************************************/
+extern BOOLEAN L2CA_Ping (BD_ADDR p_bd_addr, tL2CA_ECHO_RSP_CB *p_cb);
+
+/*******************************************************************************
+**
+** Function         L2CA_Echo
+**
+** Description      Higher layers call this function to send an echo request
+**                  with application-specific data.
+**
+** Returns          TRUE if echo request sent, else FALSE.
+**
+*******************************************************************************/
+extern BOOLEAN  L2CA_Echo (BD_ADDR p_bd_addr, BT_HDR *p_data, tL2CA_ECHO_DATA_CB *p_callback);
+
+// Given a local channel identifier, |lcid|, this function returns the bound remote
+// channel identifier, |rcid|, and the ACL link handle, |handle|. If |lcid| is not
+// known or is invalid, this function returns false and does not modify the values
+// pointed at by |rcid| and |handle|. |rcid| and |handle| may be NULL.
+bool L2CA_GetIdentifiers(uint16_t lcid, uint16_t *rcid, uint16_t *handle);
+
+/*******************************************************************************
+**
+** Function         L2CA_SetIdleTimeout
+**
+** Description      Higher layers call this function to set the idle timeout for
+**                  a connection, or for all future connections. The "idle timeout"
+**                  is the amount of time that a connection can remain up with
+**                  no L2CAP channels on it. A timeout of zero means that the
+**                  connection will be torn down immediately when the last channel
+**                  is removed. A timeout of 0xFFFF means no timeout. Values are
+**                  in seconds.
+**
+** Returns          TRUE if command succeeded, FALSE if failed
+**
+*******************************************************************************/
+extern BOOLEAN L2CA_SetIdleTimeout (UINT16 cid, UINT16 timeout,
+                                            BOOLEAN is_global);
+
+/*******************************************************************************
+**
+** Function         L2CA_SetIdleTimeoutByBdAddr
+**
+** Description      Higher layers call this function to set the idle timeout for
+**                  a connection. The "idle timeout" is the amount of time that
+**                  a connection can remain up with no L2CAP channels on it.
+**                  A timeout of zero means that the connection will be torn
+**                  down immediately when the last channel is removed.
+**                  A timeout of 0xFFFF means no timeout. Values are in seconds.
+**                  A bd_addr is the remote BD address. If bd_addr = BT_BD_ANY,
+**                  then the idle timeouts for all active l2cap links will be
+**                  changed.
+**
+** Returns          TRUE if command succeeded, FALSE if failed
+**
+** NOTE             This timeout applies to all logical channels active on the
+**                  ACL link.
+*******************************************************************************/
+extern BOOLEAN L2CA_SetIdleTimeoutByBdAddr(BD_ADDR bd_addr, UINT16 timeout,
+                                           tBT_TRANSPORT transport);
+
+/*******************************************************************************
+**
+** Function         L2CA_SetTraceLevel
+**
+** Description      This function sets the trace level for L2CAP. If called with
+**                  a value of 0xFF, it simply reads the current trace level.
+**
+** Returns          the new (current) trace level
+**
+*******************************************************************************/
+extern UINT8 L2CA_SetTraceLevel (UINT8 trace_level);
+
+/*******************************************************************************
+**
+** Function     L2CA_SetDesireRole
+**
+** Description  This function sets the desire role for L2CAP.
+**              If the new role is L2CAP_ROLE_ALLOW_SWITCH, allow switch on
+**              HciCreateConnection.
+**              If the new role is L2CAP_ROLE_DISALLOW_SWITCH, do not allow switch on
+**              HciCreateConnection.
+**
+**              If the new role is a valid role (HCI_ROLE_MASTER or HCI_ROLE_SLAVE),
+**              the desire role is set to the new value. Otherwise, it is not changed.
+**
+** Returns      the new (current) role
+**
+*******************************************************************************/
+extern UINT8 L2CA_SetDesireRole (UINT8 new_role);
+
+/*******************************************************************************
+**
+** Function     L2CA_LocalLoopbackReq
+**
+** Description  This function sets up a CID for local loopback
+**
+** Returns      CID of 0 if none.
+**
+*******************************************************************************/
+extern UINT16 L2CA_LocalLoopbackReq (UINT16 psm, UINT16 handle, BD_ADDR p_bd_addr);
+
+/*******************************************************************************
+**
+** Function     L2CA_FlushChannel
+**
+** Description  This function flushes none, some or all buffers queued up
+**              for xmission for a particular CID. If called with
+**              L2CAP_FLUSH_CHANS_GET (0), it simply returns the number
+**              of buffers queued for that CID L2CAP_FLUSH_CHANS_ALL (0xffff)
+**              flushes all buffers.  All other values specifies the maximum
+**              buffers to flush.
+**
+** Returns      Number of buffers left queued for that CID
+**
+*******************************************************************************/
+extern UINT16   L2CA_FlushChannel (UINT16 lcid, UINT16 num_to_flush);
+
+
+/*******************************************************************************
+**
+** Function         L2CA_SetAclPriority
+**
+** Description      Sets the transmission priority for an ACL channel.
+**                  (For initial implementation only two values are valid.
+**                  L2CAP_PRIORITY_NORMAL and L2CAP_PRIORITY_HIGH).
+**
+** Returns          TRUE if a valid channel, else FALSE
+**
+*******************************************************************************/
+extern BOOLEAN L2CA_SetAclPriority (BD_ADDR bd_addr, UINT8 priority);
+
+/*******************************************************************************
+**
+** Function         L2CA_FlowControl
+**
+** Description      Higher layers call this function to flow control a channel.
+**
+**                  data_enabled - TRUE data flows, FALSE data is stopped
+**
+** Returns          TRUE if valid channel, else FALSE
+**
+*******************************************************************************/
+extern BOOLEAN L2CA_FlowControl (UINT16 cid, BOOLEAN data_enabled);
+
+/*******************************************************************************
+**
+** Function         L2CA_SendTestSFrame
+**
+** Description      Higher layers call this function to send a test S-frame.
+**
+** Returns          TRUE if valid Channel, else FALSE
+**
+*******************************************************************************/
+extern BOOLEAN L2CA_SendTestSFrame (UINT16 cid, UINT8 sup_type,
+                                            UINT8 back_track);
+
+/*******************************************************************************
+**
+** Function         L2CA_SetTxPriority
+**
+** Description      Sets the transmission priority for a channel. (FCR Mode)
+**
+** Returns          TRUE if a valid channel, else FALSE
+**
+*******************************************************************************/
+extern BOOLEAN L2CA_SetTxPriority (UINT16 cid, tL2CAP_CHNL_PRIORITY priority);
+
+/*******************************************************************************
+**
+** Function         L2CA_RegForNoCPEvt
+**
+** Description      Register callback for Number of Completed Packets event.
+**
+** Input Param      p_cb - callback for Number of completed packets event
+**                  p_bda - BT address of remote device
+**
+** Returns
+**
+*******************************************************************************/
+extern BOOLEAN L2CA_RegForNoCPEvt(tL2CA_NOCP_CB *p_cb, BD_ADDR p_bda);
+
+/*******************************************************************************
+**
+** Function         L2CA_SetChnlDataRate
+**
+** Description      Sets the tx/rx data rate for a channel.
+**
+** Returns          TRUE if a valid channel, else FALSE
+**
+*******************************************************************************/
+extern BOOLEAN L2CA_SetChnlDataRate (UINT16 cid, tL2CAP_CHNL_DATA_RATE tx, tL2CAP_CHNL_DATA_RATE rx);
+
+typedef void (tL2CA_RESERVE_CMPL_CBACK) (void);
+
+/*******************************************************************************
+**
+** Function         L2CA_SetFlushTimeout
+**
+** Description      This function set the automatic flush time out in Baseband
+**                  for ACL-U packets.
+**                  BdAddr : the remote BD address of ACL link. If it is BT_DB_ANY
+**                           then the flush time out will be applied to all ACL link.
+**                  FlushTimeout: flush time out in ms
+**                           0x0000 : No automatic flush
+**                           L2CAP_NO_RETRANSMISSION : No retransmission
+**                           0x0002 - 0xFFFE : flush time out, if (flush_tout*8)+3/5)
+**                                    <= HCI_MAX_AUTO_FLUSH_TOUT (in 625us slot).
+**                                    Otherwise, return FALSE.
+**                           L2CAP_NO_AUTOMATIC_FLUSH : No automatic flush
+**
+** Returns          TRUE if command succeeded, FALSE if failed
+**
+** NOTE             This flush timeout applies to all logical channels active on the
+**                  ACL link.
+*******************************************************************************/
+extern BOOLEAN L2CA_SetFlushTimeout (BD_ADDR bd_addr, UINT16 flush_tout);
+
+/*******************************************************************************
+**
+** Function         L2CA_DataWriteEx
+**
+** Description      Higher layers call this function to write data with extended
+**                  flags.
+**                  flags : L2CAP_FLUSHABLE_CH_BASED
+**                          L2CAP_FLUSHABLE_PKT
+**                          L2CAP_NON_FLUSHABLE_PKT
+**
+** Returns          L2CAP_DW_SUCCESS, if data accepted, else FALSE
+**                  L2CAP_DW_CONGESTED, if data accepted and the channel is congested
+**                  L2CAP_DW_FAILED, if error
+**
+*******************************************************************************/
+extern UINT8 L2CA_DataWriteEx (UINT16 cid, BT_HDR *p_data, UINT16 flags);
+
+/*******************************************************************************
+**
+** Function         L2CA_SetChnlFlushability
+**
+** Description      Higher layers call this function to set a channels
+**                  flushability flags
+**
+** Returns          TRUE if CID found, else FALSE
+**
+*******************************************************************************/
+extern BOOLEAN L2CA_SetChnlFlushability (UINT16 cid, BOOLEAN is_flushable);
+
+/*******************************************************************************
+**
+**  Function         L2CA_GetPeerFeatures
+**
+**  Description      Get a peers features and fixed channel map
+**
+**  Parameters:      BD address of the peer
+**                   Pointers to features and channel mask storage area
+**
+**  Return value:    TRUE if peer is connected
+**
+*******************************************************************************/
+extern BOOLEAN L2CA_GetPeerFeatures (BD_ADDR bd_addr, UINT32 *p_ext_feat, UINT8 *p_chnl_mask);
+
+/*******************************************************************************
+**
+**  Function         L2CA_GetBDAddrbyHandle
+**
+**  Description      Get BD address for the given HCI handle
+**
+**  Parameters:      HCI handle
+**                   BD address of the peer
+**
+**  Return value:    TRUE if found lcb for the given handle, FALSE otherwise
+**
+*******************************************************************************/
+extern BOOLEAN L2CA_GetBDAddrbyHandle (UINT16 handle, BD_ADDR bd_addr);
+
+/*******************************************************************************
+**
+**  Function         L2CA_GetChnlFcrMode
+**
+**  Description      Get the channel FCR mode
+**
+**  Parameters:      Local CID
+**
+**  Return value:    Channel mode
+**
+*******************************************************************************/
+extern UINT8 L2CA_GetChnlFcrMode (UINT16 lcid);
+
+
+/*******************************************************************************
+**
+**                      UCD callback prototypes
+**
+*******************************************************************************/
+
+/* UCD discovery. Parameters are
+**      BD Address of remote
+**      Data Type
+**      Data
+*/
+#define L2CAP_UCD_INFO_TYPE_RECEPTION   0x01
+#define L2CAP_UCD_INFO_TYPE_MTU         0x02
+
+typedef void (tL2CA_UCD_DISCOVER_CB) (BD_ADDR, UINT8, UINT32);
+
+/* UCD data received. Parameters are
+**      BD Address of remote
+**      Pointer to buffer with data
+*/
+typedef void (tL2CA_UCD_DATA_CB) (BD_ADDR, BT_HDR *);
+
+/* Congestion status callback protype. This callback is optional. If
+** an application tries to send data when the transmit queue is full,
+** the data will anyways be dropped. The parameter is:
+**              remote BD_ADDR
+**              TRUE if congested, FALSE if uncongested
+*/
+typedef void (tL2CA_UCD_CONGESTION_STATUS_CB) (BD_ADDR, BOOLEAN);
+
+/* UCD registration info (the callback addresses and PSM)
+*/
+typedef struct
+{
+    tL2CA_UCD_DISCOVER_CB           *pL2CA_UCD_Discover_Cb;
+    tL2CA_UCD_DATA_CB               *pL2CA_UCD_Data_Cb;
+    tL2CA_UCD_CONGESTION_STATUS_CB  *pL2CA_UCD_Congestion_Status_Cb;
+} tL2CAP_UCD_CB_INFO;
+
+/*******************************************************************************
+**
+**  Function        L2CA_UcdRegister
+**
+**  Description     Register PSM on UCD.
+**
+**  Parameters:     tL2CAP_UCD_CB_INFO
+**
+**  Return value:   TRUE if successs
+**
+*******************************************************************************/
+extern BOOLEAN L2CA_UcdRegister ( UINT16 psm, tL2CAP_UCD_CB_INFO *p_cb_info );
+
+/*******************************************************************************
+**
+**  Function        L2CA_UcdDeregister
+**
+**  Description     Deregister PSM on UCD.
+**
+**  Parameters:     PSM
+**
+**  Return value:   TRUE if successs
+**
+*******************************************************************************/
+extern BOOLEAN L2CA_UcdDeregister ( UINT16 psm );
+
+/*******************************************************************************
+**
+**  Function        L2CA_UcdDiscover
+**
+**  Description     Discover UCD of remote device.
+**
+**  Parameters:     PSM
+**                  BD_ADDR of remote device
+**                  info_type : L2CAP_UCD_INFO_TYPE_RECEPTION
+**                              L2CAP_UCD_INFO_TYPE_MTU
+**
+**
+**  Return value:   TRUE if successs
+**
+*******************************************************************************/
+extern BOOLEAN L2CA_UcdDiscover ( UINT16 psm, BD_ADDR rem_bda, UINT8 info_type );
+
+/*******************************************************************************
+**
+**  Function        L2CA_UcdDataWrite
+**
+**  Description     Send UCD to remote device
+**
+**  Parameters:     PSM
+**                  BD Address of remote
+**                  Pointer to buffer of type BT_HDR
+**                  flags : L2CAP_FLUSHABLE_CH_BASED
+**                          L2CAP_FLUSHABLE_PKT
+**                          L2CAP_NON_FLUSHABLE_PKT
+**
+** Return value     L2CAP_DW_SUCCESS, if data accepted
+**                  L2CAP_DW_FAILED,  if error
+**
+*******************************************************************************/
+extern UINT16 L2CA_UcdDataWrite (UINT16 psm, BD_ADDR rem_bda, BT_HDR *p_buf, UINT16 flags);
+
+/*******************************************************************************
+**
+**  Function        L2CA_UcdSetIdleTimeout
+**
+**  Description     Set UCD Idle timeout.
+**
+**  Parameters:     BD Addr
+**                  Timeout in second
+**
+**  Return value:   TRUE if successs
+**
+*******************************************************************************/
+extern BOOLEAN L2CA_UcdSetIdleTimeout ( BD_ADDR rem_bda, UINT16 timeout );
+
+/*******************************************************************************
+**
+** Function         L2CA_UCDSetTxPriority
+**
+** Description      Sets the transmission priority for a connectionless channel.
+**
+** Returns          TRUE if a valid channel, else FALSE
+**
+*******************************************************************************/
+extern BOOLEAN L2CA_UCDSetTxPriority ( BD_ADDR rem_bda, tL2CAP_CHNL_PRIORITY priority );
+
+
+/*******************************************************************************
+**
+**                      Fixed Channel callback prototypes
+**
+*******************************************************************************/
+
+/* Fixed channel connected and disconnected. Parameters are
+**      channel
+**      BD Address of remote
+**      TRUE if channel is connected, FALSE if disconnected
+**      Reason for connection failure
+**      transport : physical transport, BR/EDR or LE
+*/
+typedef void (tL2CA_FIXED_CHNL_CB) (UINT16, BD_ADDR, BOOLEAN, UINT16, tBT_TRANSPORT);
+
+/* Signalling data received. Parameters are
+**      channel
+**      BD Address of remote
+**      Pointer to buffer with data
+*/
+typedef void (tL2CA_FIXED_DATA_CB) (UINT16, BD_ADDR, BT_HDR *);
+
+/* Congestion status callback protype. This callback is optional. If
+** an application tries to send data when the transmit queue is full,
+** the data will anyways be dropped. The parameter is:
+**      remote BD_ADDR
+**      TRUE if congested, FALSE if uncongested
+*/
+typedef void (tL2CA_FIXED_CONGESTION_STATUS_CB) (BD_ADDR, BOOLEAN);
+
+/* Fixed channel registration info (the callback addresses and channel config)
+*/
+typedef struct
+{
+    tL2CA_FIXED_CHNL_CB    *pL2CA_FixedConn_Cb;
+    tL2CA_FIXED_DATA_CB    *pL2CA_FixedData_Cb;
+    tL2CA_FIXED_CONGESTION_STATUS_CB *pL2CA_FixedCong_Cb;
+    tL2CAP_FCR_OPTS         fixed_chnl_opts;
+
+    UINT16                  default_idle_tout;
+    tL2CA_TX_COMPLETE_CB    *pL2CA_FixedTxComplete_Cb; /* fixed channel tx complete callback */
+} tL2CAP_FIXED_CHNL_REG;
+
+
+#if (L2CAP_NUM_FIXED_CHNLS > 0)
+/*******************************************************************************
+**
+**  Function        L2CA_RegisterFixedChannel
+**
+**  Description     Register a fixed channel.
+**
+**  Parameters:     Fixed Channel #
+**                  Channel Callbacks and config
+**
+**  Return value:   TRUE if registered OK
+**
+*******************************************************************************/
+extern BOOLEAN  L2CA_RegisterFixedChannel (UINT16 fixed_cid, tL2CAP_FIXED_CHNL_REG *p_freg);
+
+/*******************************************************************************
+**
+**  Function        L2CA_ConnectFixedChnl
+**
+**  Description     Connect an fixed signalling channel to a remote device.
+**
+**  Parameters:     Fixed CID
+**                  BD Address of remote
+**
+**  Return value:   TRUE if connection started
+**
+*******************************************************************************/
+extern BOOLEAN L2CA_ConnectFixedChnl (UINT16 fixed_cid, BD_ADDR bd_addr);
+
+/*******************************************************************************
+**
+**  Function        L2CA_SendFixedChnlData
+**
+**  Description     Write data on a fixed signalling channel.
+**
+**  Parameters:     Fixed CID
+**                  BD Address of remote
+**                  Pointer to buffer of type BT_HDR
+**
+** Return value     L2CAP_DW_SUCCESS, if data accepted
+**                  L2CAP_DW_FAILED,  if error
+**
+*******************************************************************************/
+extern UINT16 L2CA_SendFixedChnlData (UINT16 fixed_cid, BD_ADDR rem_bda, BT_HDR *p_buf);
+
+/*******************************************************************************
+**
+**  Function        L2CA_RemoveFixedChnl
+**
+**  Description     Remove a fixed channel to a remote device.
+**
+**  Parameters:     Fixed CID
+**                  BD Address of remote
+**                  Idle timeout to use (or 0xFFFF if don't care)
+**
+**  Return value:   TRUE if channel removed
+**
+*******************************************************************************/
+extern BOOLEAN L2CA_RemoveFixedChnl (UINT16 fixed_cid, BD_ADDR rem_bda);
+
+/*******************************************************************************
+**
+** Function         L2CA_SetFixedChannelTout
+**
+** Description      Higher layers call this function to set the idle timeout for
+**                  a fixed channel. The "idle timeout" is the amount of time that
+**                  a connection can remain up with no L2CAP channels on it.
+**                  A timeout of zero means that the connection will be torn
+**                  down immediately when the last channel is removed.
+**                  A timeout of 0xFFFF means no timeout. Values are in seconds.
+**                  A bd_addr is the remote BD address. If bd_addr = BT_BD_ANY,
+**                  then the idle timeouts for all active l2cap links will be
+**                  changed.
+**
+** Returns          TRUE if command succeeded, FALSE if failed
+**
+*******************************************************************************/
+extern BOOLEAN L2CA_SetFixedChannelTout (BD_ADDR rem_bda, UINT16 fixed_cid, UINT16 idle_tout);
+
+#endif /* (L2CAP_NUM_FIXED_CHNLS > 0) */
+
+/*******************************************************************************
+**
+** Function     L2CA_GetCurrentConfig
+**
+** Description  This function returns configurations of L2CAP channel
+**              pp_our_cfg : pointer of our saved configuration options
+**              p_our_cfg_bits : valid config in bitmap
+**              pp_peer_cfg: pointer of peer's saved configuration options
+**              p_peer_cfg_bits : valid config in bitmap
+**
+** Returns      TRUE if successful
+**
+*******************************************************************************/
+extern BOOLEAN L2CA_GetCurrentConfig (UINT16 lcid,
+                                      tL2CAP_CFG_INFO **pp_our_cfg,  tL2CAP_CH_CFG_BITS *p_our_cfg_bits,
+                                      tL2CAP_CFG_INFO **pp_peer_cfg, tL2CAP_CH_CFG_BITS *p_peer_cfg_bits);
+
+/*******************************************************************************
+**
+** Function     L2CA_GetConnectionConfig
+**
+** Description  This function polulates the mtu, remote cid & lm_handle for
+**              a given local L2CAP channel
+**
+** Returns      TRUE if successful
+**
+*******************************************************************************/
+extern BOOLEAN L2CA_GetConnectionConfig(UINT16 lcid, UINT16 *mtu, UINT16 *rcid, UINT16 *handle);
+
+#if (BLE_INCLUDED == TRUE)
+/*******************************************************************************
+**
+**  Function        L2CA_CancelBleConnectReq
+**
+**  Description     Cancel a pending connection attempt to a BLE device.
+**
+**  Parameters:     BD Address of remote
+**
+**  Return value:   TRUE if connection was cancelled
+**
+*******************************************************************************/
+extern BOOLEAN L2CA_CancelBleConnectReq (BD_ADDR rem_bda);
+
+/*******************************************************************************
+**
+**  Function        L2CA_UpdateBleConnParams
+**
+**  Description     Update BLE connection parameters.
+**
+**  Parameters:     BD Address of remote
+**
+**  Return value:   TRUE if update started
+**
+*******************************************************************************/
+extern BOOLEAN L2CA_UpdateBleConnParams (BD_ADDR rem_bdRa, UINT16 min_int,
+                                         UINT16 max_int, UINT16 latency, UINT16 timeout);
+
+/*******************************************************************************
+**
+**  Function        L2CA_EnableUpdateBleConnParams
+**
+**  Description     Update BLE connection parameters.
+**
+**  Parameters:     BD Address of remote
+**                  enable flag
+**
+**  Return value:   TRUE if update started
+**
+*******************************************************************************/
+extern BOOLEAN L2CA_EnableUpdateBleConnParams (BD_ADDR rem_bda, BOOLEAN enable);
+
+/*******************************************************************************
+**
+** Function         L2CA_GetBleConnRole
+**
+** Description      This function returns the connection role.
+**
+** Returns          link role.
+**
+*******************************************************************************/
+extern UINT8 L2CA_GetBleConnRole (BD_ADDR bd_addr);
+
+/*******************************************************************************
+**
+** Function         L2CA_GetDisconnectReason
+**
+** Description      This function returns the disconnect reason code.
+**
+**  Parameters:     BD Address of remote
+**                         Physical transport for the L2CAP connection (BR/EDR or LE)
+**
+** Returns          disconnect reason
+**
+*******************************************************************************/
+extern UINT16 L2CA_GetDisconnectReason (BD_ADDR remote_bda, tBT_TRANSPORT transport);
+
+#endif /* (BLE_INCLUDED == TRUE) */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif  /* L2C_API_H */
diff --git a/rtkbt/code/bt/stack/include/l2cap_client.h b/rtkbt/code/bt/stack/include/l2cap_client.h
new file mode 100755
index 0000000..b995d5e
--- /dev/null
+++ b/rtkbt/code/bt/stack/include/l2cap_client.h
@@ -0,0 +1,74 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+#include <hardware/bluetooth.h>
+#include <stdbool.h>
+#include <stdint.h>
+
+typedef struct buffer_t buffer_t;
+typedef struct l2cap_client_t l2cap_client_t;
+
+typedef struct {
+  void (*connected)(l2cap_client_t *client, void *context);
+  void (*disconnected)(l2cap_client_t *client, void *context);
+  void (*read_ready)(l2cap_client_t *client, buffer_t *packet, void *context);
+  void (*write_ready)(l2cap_client_t *client, void *context);
+} l2cap_client_callbacks_t;
+
+// Returns a new buffer with enough space for |size| bytes of L2CAP payload.
+// |size| must be greater than zero. This function returns NULL if the buffer
+// could not be allocated. The returned buffer must be freed with |buffer_free|
+// when it is no longer needed.
+buffer_t *l2cap_buffer_new(size_t size);
+
+// Creates and returns a new L2CAP client object. |callbacks| must not be NULL and
+// must specify a set of functions that should be called back when events occur
+// on the L2CAP connection. |context| may be NULL and will be passed as the argument
+// to all callbacks in |l2cap_client_callbacks_t|. The returned object must be freed
+// with |l2cap_client_free|.
+l2cap_client_t *l2cap_client_new(const l2cap_client_callbacks_t *callbacks, void *context);
+
+// Frees the L2CAP client object allocated with |l2cap_client_new|. |client| may be NULL.
+void l2cap_client_free(l2cap_client_t *client);
+
+// Attempts to connect the |client| to a peer device specified by |remote_bdaddr|
+// using the |psm| protocol specifier. This function returns true if the connect
+// operation could be started and will indicate completion with either a 'connected'
+// callback (success) or a 'disconnected' callback (failure).
+//
+// This function must not be called while a connect operation is in progress or
+// while |l2cap_client_is_connected|. |client| and |remote_bdaddr| must not be NULL.
+// |psm| must be greater than zero.
+bool l2cap_client_connect(l2cap_client_t *client, const bt_bdaddr_t *remote_bdaddr, uint16_t psm);
+
+// Disconnects a connected |client|. This function is asynchronous and idempotent. It
+// will indicate completion with a 'disconnected' callback. |client| must not be NULL.
+void l2cap_client_disconnect(l2cap_client_t *client);
+
+// Returns true if |client| is connected and is ready to accept data written to it.
+// |client| must not be NULL.
+bool l2cap_client_is_connected(const l2cap_client_t *client);
+
+// Writes data contained in |packet| to a connected |client|. This function returns
+// true if the packet was successfully queued for delivery, false if the client cannot
+// accept more data at this time. If this function returns false, the caller must wait
+// for the 'write_ready' callback to write additional data to the client. Neither
+// |client| nor |packet| may be NULL.
+bool l2cap_client_write(l2cap_client_t *client, buffer_t *packet);
diff --git a/rtkbt/code/bt/stack/include/l2cdefs.h b/rtkbt/code/bt/stack/include/l2cdefs.h
new file mode 100755
index 0000000..4037dc7
--- /dev/null
+++ b/rtkbt/code/bt/stack/include/l2cdefs.h
@@ -0,0 +1,334 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#ifndef L2CDEFS_H
+#define L2CDEFS_H
+
+/* L2CAP command codes
+*/
+#define L2CAP_CMD_REJECT                    0x01
+#define L2CAP_CMD_CONN_REQ                  0x02
+#define L2CAP_CMD_CONN_RSP                  0x03
+#define L2CAP_CMD_CONFIG_REQ                0x04
+#define L2CAP_CMD_CONFIG_RSP                0x05
+#define L2CAP_CMD_DISC_REQ                  0x06
+#define L2CAP_CMD_DISC_RSP                  0x07
+#define L2CAP_CMD_ECHO_REQ                  0x08
+#define L2CAP_CMD_ECHO_RSP                  0x09
+#define L2CAP_CMD_INFO_REQ                  0x0A
+#define L2CAP_CMD_INFO_RSP                  0x0B
+#define L2CAP_CMD_AMP_CONN_REQ              0x0C
+#define L2CAP_CMD_AMP_CONN_RSP              0x0D
+#define L2CAP_CMD_AMP_MOVE_REQ              0x0E
+#define L2CAP_CMD_AMP_MOVE_RSP              0x0F
+#define L2CAP_CMD_AMP_MOVE_CFM              0x10
+#define L2CAP_CMD_AMP_MOVE_CFM_RSP          0x11
+#define L2CAP_CMD_BLE_UPDATE_REQ            0x12
+#define L2CAP_CMD_BLE_UPDATE_RSP            0x13
+#define L2CAP_CMD_BLE_CREDIT_BASED_CONN_REQ 0x14
+#define L2CAP_CMD_BLE_CREDIT_BASED_CONN_RES 0x15
+#define L2CAP_CMD_BLE_FLOW_CTRL_CREDIT      0x16
+
+/* Define some packet and header lengths
+*/
+#define L2CAP_PKT_OVERHEAD      4           /* Length and CID                       */
+#define L2CAP_CMD_OVERHEAD      4           /* Cmd code, Id and length              */
+#define L2CAP_CMD_REJECT_LEN    2           /* Reason (data is optional)            */
+#define L2CAP_CONN_REQ_LEN      4           /* PSM and source CID                   */
+#define L2CAP_CONN_RSP_LEN      8           /* Dest CID, source CID, reason, status */
+#define L2CAP_CONFIG_REQ_LEN    4           /* Dest CID, flags (data is optional)   */
+#define L2CAP_CONFIG_RSP_LEN    6           /* Dest CID, flags, result,data optional*/
+#define L2CAP_DISC_REQ_LEN      4           /* Dest CID, source CID                 */
+#define L2CAP_DISC_RSP_LEN      4           /* Dest CID, source CID                 */
+#define L2CAP_ECHO_REQ_LEN      0           /* Data is optional                     */
+#define L2CAP_ECHO_RSP_LEN      0           /* Data is optional                     */
+#define L2CAP_INFO_REQ_LEN      2           /* Info type                            */
+#define L2CAP_INFO_RSP_LEN      4           /* Info type, result (data is optional) */
+#define L2CAP_UCD_OVERHEAD      2           /* Additional connectionless packet overhead */
+
+#define L2CAP_AMP_CONN_REQ_LEN  5           /* PSM, CID, and remote controller ID   */
+#define L2CAP_AMP_MOVE_REQ_LEN  3           /* CID and remote controller ID         */
+#define L2CAP_AMP_MOVE_RSP_LEN  4           /* CID and result                       */
+#define L2CAP_AMP_MOVE_CFM_LEN  4           /* CID and result                       */
+#define L2CAP_AMP_MOVE_CFM_RSP_LEN  2       /* CID                                  */
+
+#define L2CAP_CMD_BLE_UPD_REQ_LEN   8       /* Min and max interval, latency, tout  */
+#define L2CAP_CMD_BLE_UPD_RSP_LEN   2       /* Result                               */
+
+#define L2CAP_CMD_BLE_CREDIT_BASED_CONN_REQ_LEN 10 /* LE_PSM, SCID, MTU, MPS, Init Credit */
+#define L2CAP_CMD_BLE_CREDIT_BASED_CONN_RES_LEN 10 /* DCID, MTU, MPS, Init credit, Result */
+#define L2CAP_CMD_BLE_FLOW_CTRL_CREDIT_LEN      4  /* CID, Credit */
+
+/* Define the packet boundary flags
+*/
+#if (L2CAP_NON_FLUSHABLE_PB_INCLUDED == TRUE)
+#define L2CAP_PKT_START_FLUSHABLE       2
+#define L2CAP_PKT_START_NON_FLUSHABLE   0
+#endif
+#define L2CAP_COMPLETE_AMP_PKT          3       /* complete L2CAP packet on AMP HCI */
+#define L2CAP_PKT_START                 2
+#define L2CAP_PKT_CONTINUE              1
+#define L2CAP_MASK_FLAG            0x0FFF
+#define L2CAP_PKT_TYPE_SHIFT            12
+#define L2CAP_PKT_TYPE_MASK             3
+
+
+/* Define the L2CAP connection result codes
+*/
+#define L2CAP_CONN_OK                0
+#define L2CAP_CONN_PENDING           1
+#define L2CAP_CONN_NO_PSM            2
+#define L2CAP_CONN_SECURITY_BLOCK    3
+#define L2CAP_CONN_NO_RESOURCES      4
+#define L2CAP_CONN_BAD_CTLR_ID       5              /* AMP related */
+#define L2CAP_CONN_TIMEOUT           0xEEEE
+#define L2CAP_CONN_AMP_FAILED        254
+#define L2CAP_CONN_NO_LINK           255        /* Add a couple of our own for internal use */
+#define L2CAP_CONN_CANCEL            256        /* L2CAP connection cancelled */
+
+/* Define the LE L2CAP connection result codes
+*/
+#define L2CAP_LE_CONN_OK                        0
+#define L2CAP_LE_NO_PSM                         2
+#define L2CAP_LE_NO_RESOURCES                   4
+#define L2CAP_LE_INSUFFICIENT_AUTHENTICATION    5
+#define L2CAP_LE_INSUFFICIENT_AUTHORIZATION     6
+#define L2CAP_LE_INSUFFICIENT_ENCRYP_KEY_SIZE   7
+#define L2CAP_LE_INSUFFICIENT_ENCRYP            8
+#define L2CAP_LE_INVALID_SOURCE_CID             9   /* We don't like peer device response */
+
+/* Define L2CAP Move Channel Response result codes
+*/
+#define L2CAP_MOVE_OK                   0
+#define L2CAP_MOVE_PENDING              1
+#define L2CAP_MOVE_CTRL_ID_NOT_SUPPORT  2
+#define L2CAP_MOVE_SAME_CTRLR_ID        3
+#define L2CAP_MOVE_CONFIG_NOT_SUPPORTED 4
+#define L2CAP_MOVE_CHAN_COLLISION       5
+#define L2CAP_MOVE_NOT_ALLOWED          6
+
+
+/* Define L2CAP Move Channel Confirmation result codes
+*/
+#define L2CAP_MOVE_CFM_OK               0
+#define L2CAP_MOVE_CFM_REFUSED          1
+
+
+/* Define the L2CAP command reject reason codes
+*/
+#define L2CAP_CMD_REJ_NOT_UNDERSTOOD    0
+#define L2CAP_CMD_REJ_MTU_EXCEEDED      1
+#define L2CAP_CMD_REJ_INVALID_CID       2
+
+
+/* L2CAP Predefined CIDs
+*/
+#define L2CAP_SIGNALLING_CID            1
+#define L2CAP_CONNECTIONLESS_CID        2
+#define L2CAP_AMP_CID                   3
+#define L2CAP_ATT_CID                   4
+#define L2CAP_BLE_SIGNALLING_CID        5
+#define L2CAP_SMP_CID                   6
+#define L2CAP_SMP_BR_CID                7
+#define L2CAP_AMP_TEST_CID              0x003F
+#define L2CAP_BASE_APPL_CID             0x0040
+#define L2CAP_BLE_CONN_MAX_CID          0x007F
+
+/* Fixed Channels mask bits */
+
+/* Signal channel supported (Mandatory) */
+#define L2CAP_FIXED_CHNL_SIG_BIT     (1 << L2CAP_SIGNALLING_CID)
+
+/* Connectionless reception */
+#define L2CAP_FIXED_CHNL_CNCTLESS_BIT (1 << L2CAP_CONNECTIONLESS_CID)
+
+/* AMP Manager supported */
+#define L2CAP_FIXED_CHNL_AMP_BIT      (1 << L2CAP_AMP_CID)
+
+/* Attribute protocol supported */
+#define L2CAP_FIXED_CHNL_ATT_BIT      (1 << L2CAP_ATT_CID)
+
+/* BLE Signalling supported */
+#define L2CAP_FIXED_CHNL_BLE_SIG_BIT  (1 << L2CAP_BLE_SIGNALLING_CID)
+
+/* BLE Security Mgr supported */
+#define L2CAP_FIXED_CHNL_SMP_BIT      (1 << L2CAP_SMP_CID)
+
+/* Security Mgr over BR supported */
+#define L2CAP_FIXED_CHNL_SMP_BR_BIT   (1 << L2CAP_SMP_BR_CID)
+
+
+
+/* Define the L2CAP configuration result codes
+*/
+#define L2CAP_CFG_OK                    0
+#define L2CAP_CFG_UNACCEPTABLE_PARAMS   1
+#define L2CAP_CFG_FAILED_NO_REASON      2
+#define L2CAP_CFG_UNKNOWN_OPTIONS       3
+#define L2CAP_CFG_PENDING               4
+#define L2CAP_CFG_FLOW_SPEC_REJECTED    5
+
+
+/* Define the L2CAP configuration option types
+*/
+#define L2CAP_CFG_TYPE_MTU              0x01
+#define L2CAP_CFG_TYPE_FLUSH_TOUT       0x02
+#define L2CAP_CFG_TYPE_QOS              0x03
+#define L2CAP_CFG_TYPE_FCR              0x04
+#define L2CAP_CFG_TYPE_FCS              0x05
+#define L2CAP_CFG_TYPE_EXT_FLOW         0x06
+#define L2CAP_CFG_TYPE_EXT_WIN_SIZE     0x07
+
+#define L2CAP_CFG_MTU_OPTION_LEN        2           /* MTU option length    */
+#define L2CAP_CFG_FLUSH_OPTION_LEN      2           /* Flush option len     */
+#define L2CAP_CFG_QOS_OPTION_LEN        22          /* QOS option length    */
+#define L2CAP_CFG_FCR_OPTION_LEN        9           /* FCR option length    */
+#define L2CAP_CFG_FCS_OPTION_LEN        1           /* FCR option length    */
+#define L2CAP_CFG_EXT_FLOW_OPTION_LEN   16          /* Extended Flow Spec   */
+#define L2CAP_CFG_EXT_WIN_SIZE_LEN      2           /* Ext window size length */
+#define L2CAP_CFG_OPTION_OVERHEAD       2           /* Type and length      */
+
+/* Configuration Cmd/Rsp Flags mask
+*/
+#define L2CAP_CFG_FLAGS_MASK_CONT       0x0001      /* Flags mask: Continuation */
+
+/* FCS Check Option values
+*/
+#define L2CAP_CFG_FCS_BYPASS            0       /* Bypass the FCS in streaming or ERTM modes */
+#define L2CAP_CFG_FCS_USE               1       /* Use the FCS in streaming or ERTM modes [default] */
+
+/* Default values for configuration
+*/
+#define L2CAP_NO_AUTOMATIC_FLUSH        0xFFFF
+#define L2CAP_NO_RETRANSMISSION         0x0001
+
+#define L2CAP_DEFAULT_MTU               (672)
+#define L2CAP_DEFAULT_FLUSH_TO          L2CAP_NO_AUTOMATIC_FLUSH
+#define L2CAP_DEFAULT_SERV_TYPE         1
+#define L2CAP_DEFAULT_TOKEN_RATE        0
+#define L2CAP_DEFAULT_BUCKET_SIZE       0
+#define L2CAP_DEFAULT_PEAK_BANDWIDTH    0
+#define L2CAP_DEFAULT_LATENCY           0xFFFFFFFF
+#define L2CAP_DEFAULT_DELAY             0xFFFFFFFF
+#define L2CAP_DEFAULT_FCS               L2CAP_CFG_FCS_USE
+
+
+/* Define the L2CAP disconnect result codes
+*/
+#define L2CAP_DISC_OK                   0
+#define L2CAP_DISC_TIMEOUT              0xEEEE
+
+/* Define the L2CAP info resp result codes
+*/
+#define L2CAP_INFO_RESP_RESULT_SUCCESS          0
+#define L2CAP_INFO_RESP_RESULT_NOT_SUPPORTED    1
+
+/* Define the info-type fields of information request & response
+*/
+#define L2CAP_CONNLESS_MTU_INFO_TYPE      0x0001
+#define L2CAP_EXTENDED_FEATURES_INFO_TYPE 0x0002    /* Used in Information Req/Response */
+#define L2CAP_FIXED_CHANNELS_INFO_TYPE    0x0003    /* Used in AMP                      */
+
+#define L2CAP_CONNLESS_MTU_INFO_SIZE           2    /* Connectionless MTU size          */
+#define L2CAP_EXTENDED_FEATURES_ARRAY_SIZE     4    /* Extended features array size     */
+#define L2CAP_FIXED_CHNL_ARRAY_SIZE            8    /* Fixed channel array size         */
+
+/* Extended features mask bits
+*/
+#define L2CAP_EXTFEA_RTRANS         0x00000001    /* Retransmission Mode (Not Supported)    */
+#define L2CAP_EXTFEA_FC             0x00000002    /* Flow Control Mode   (Not Supported)    */
+#define L2CAP_EXTFEA_QOS            0x00000004
+#define L2CAP_EXTFEA_ENH_RETRANS    0x00000008    /* Enhanced retransmission mode           */
+#define L2CAP_EXTFEA_STREAM_MODE    0x00000010    /* Streaming Mode                         */
+#define L2CAP_EXTFEA_NO_CRC         0x00000020    /* Optional FCS (if set No FCS desired)   */
+#define L2CAP_EXTFEA_EXT_FLOW_SPEC  0x00000040    /* Extended flow spec                     */
+#define L2CAP_EXTFEA_FIXED_CHNLS    0x00000080    /* Fixed channels                         */
+#define L2CAP_EXTFEA_EXT_WINDOW     0x00000100    /* Extended Window Size                   */
+#define L2CAP_EXTFEA_UCD_RECEPTION  0x00000200    /* Unicast Connectionless Data Reception  */
+
+/* Mask for locally supported features used in Information Response (default to none) */
+#ifndef L2CAP_EXTFEA_SUPPORTED_MASK
+#define L2CAP_EXTFEA_SUPPORTED_MASK 0
+#endif
+
+/* Mask for LE supported features used in Information Response (default to none) */
+#ifndef L2CAP_BLE_EXTFEA_MASK
+#define L2CAP_BLE_EXTFEA_MASK 0
+#endif
+
+/* Define a value that tells L2CAP to use the default HCI ACL buffer size */
+#define L2CAP_INVALID_ERM_BUF_SIZE      0
+/* Define a value that tells L2CAP to use the default MPS */
+#define L2CAP_DEFAULT_ERM_MPS           0x0000
+
+#define L2CAP_FCR_OVERHEAD         2   /* Control word                 */
+#define L2CAP_FCS_LEN              2   /* FCS takes 2 bytes */
+#define L2CAP_SDU_LEN_OVERHEAD     2   /* SDU length field is 2 bytes */
+#define L2CAP_SDU_LEN_OFFSET       2   /* SDU length offset is 2 bytes */
+#define L2CAP_EXT_CONTROL_OVERHEAD 4   /* Extended Control Field       */
+#define L2CAP_MAX_HEADER_FCS       (L2CAP_PKT_OVERHEAD + L2CAP_EXT_CONTROL_OVERHEAD + L2CAP_SDU_LEN_OVERHEAD + L2CAP_FCS_LEN)
+                                   /* length(2), channel(2), control(4), SDU length(2) FCS(2) */
+
+/* To optimize this, it must be a multiplum of the L2CAP PDU length AND match the 3DH5 air
+ * including the l2cap headers in each packet - to match the latter - the -5 is added
+ * Changed it to  8087 to have same value between BTIF and L2cap layers
+ */
+#define L2CAP_MAX_SDU_LENGTH     (8080 + 26 - (L2CAP_MIN_OFFSET + 6))
+#define L2CAP_MAX_BUF_SIZE      (10240 + 24)
+
+/* Part of L2CAP_MIN_OFFSET that is not part of L2CAP
+*/
+#define L2CAP_OFFSET_WO_L2HDR  (L2CAP_MIN_OFFSET-(L2CAP_PKT_OVERHEAD+L2CAP_FCR_OVERHEAD))
+
+/* SAR bits in the control word
+*/
+#define L2CAP_FCR_UNSEG_SDU    0x0000   /* Control word to begin with for unsegmented PDU*/
+#define L2CAP_FCR_START_SDU    0x4000   /* ...for Starting PDU of a semented SDU */
+#define L2CAP_FCR_END_SDU      0x8000   /* ...for ending PDU of a segmented SDU */
+#define L2CAP_FCR_CONT_SDU     0xc000   /* ...for continuation PDU of a segmented SDU */
+
+/* Supervisory frame types
+*/
+#define L2CAP_FCR_SUP_RR        0x0000   /* Supervisory frame - RR                          */
+#define L2CAP_FCR_SUP_REJ       0x0001   /* Supervisory frame - REJ                         */
+#define L2CAP_FCR_SUP_RNR       0x0002   /* Supervisory frame - RNR                         */
+#define L2CAP_FCR_SUP_SREJ      0x0003   /* Supervisory frame - SREJ                        */
+
+#define L2CAP_FCR_SAR_BITS           0xC000    /* Mask to get the SAR bits from control word */
+#define L2CAP_FCR_SAR_BITS_SHIFT     14        /* Bits to shift right to get the SAR bits from ctrl-word */
+
+#define L2CAP_FCR_S_FRAME_BIT         0x0001   /* Mask to check if a PDU is S-frame */
+#define L2CAP_FCR_REQ_SEQ_BITS        0x3F00   /* Mask to get the req-seq from control word */
+#define L2CAP_FCR_REQ_SEQ_BITS_SHIFT  8        /* Bits to shift right to get the req-seq from ctrl-word */
+#define L2CAP_FCR_TX_SEQ_BITS         0x007E   /* Mask on get the tx-seq from control word */
+#define L2CAP_FCR_TX_SEQ_BITS_SHIFT   1        /* Bits to shift right to get the tx-seq from ctrl-word */
+
+#define L2CAP_FCR_F_BIT               0x0080   /* F-bit in the control word (Sup and I frames)  */
+#define L2CAP_FCR_P_BIT               0x0010   /* P-bit in the control word (Sup frames only)   */
+
+#define L2CAP_FCR_F_BIT_SHIFT         7
+#define L2CAP_FCR_P_BIT_SHIFT         4
+
+#define L2CAP_FCR_SEG_BITS            0xC000   /* Mask to get the segmentation bits from ctrl-word */
+#define L2CAP_FCR_SUP_SHIFT           2        /* Bits to shift right to get the S-bits from ctrl-word */
+#define L2CAP_FCR_SUP_BITS            0x000C   /* Mask to get the supervisory bits from ctrl-word */
+
+#define L2CAP_FCR_INIT_CRC            0   /* Initial state of the CRC register */
+#define L2CAP_FCR_SEQ_MODULO          0x3F     /* Mask for sequence numbers (range 0 - 63) */
+
+#endif
diff --git a/rtkbt/code/bt/stack/include/mca_api.h b/rtkbt/code/bt/stack/include/mca_api.h
new file mode 100755
index 0000000..bb6919a
--- /dev/null
+++ b/rtkbt/code/bt/stack/include/mca_api.h
@@ -0,0 +1,495 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This interface file contains the interface to the Multi-Channel
+ *  Adaptation Protocol (MCAP).
+ *
+ ******************************************************************************/
+#ifndef MCA_API_H
+#define MCA_API_H
+
+#include "bt_target.h"
+#include "l2c_api.h"
+
+/* move the following to bt_target.h or other place later */
+#define MCA_NUM_TC_TBL  ((MCA_NUM_REGS)*(MCA_NUM_LINKS)*(MCA_NUM_MDLS+1))
+#define MCA_NUM_CCBS	((MCA_NUM_REGS)*(MCA_NUM_LINKS))    /* Number of control channel control blocks	*/
+#define MCA_NUM_DCBS	((MCA_NUM_REGS)*(MCA_NUM_LINKS)*(MCA_NUM_MDLS)) /* Number of data channel control blocks */
+
+
+/*****************************************************************************
+** constants
+*****************************************************************************/
+/* API function return value result codes. */
+#define MCA_SUCCESS                0       /* Function successful */
+#define MCA_BAD_PARAMS             1       /* Invalid parameters */
+#define MCA_NO_RESOURCES           2       /* Not enough resources */
+#define MCA_BAD_HANDLE             3       /* Bad handle */
+#define MCA_BUSY                   4       /* A procedure is already in progress */
+#define MCA_WRITE_FAIL             5       /* Write failed */
+#define MCA_BAD_MDL_ID             6       /* MDL ID is not valid for the current API */
+typedef UINT8 tMCA_RESULT;
+
+/* MDEP data type.  */
+#define MCA_TDEP_ECHO              0       /* MDEP for echo test  */
+#define MCA_TDEP_DATA              1       /* MDEP for normal data */
+
+/* Control callback events. */
+#define MCA_ERROR_RSP_EVT           0       /* error response */
+#define MCA_CREATE_IND_EVT          1       /* create mdl indication */
+#define MCA_CREATE_CFM_EVT          2       /* create mdl confirm */
+#define MCA_RECONNECT_IND_EVT       3       /* reconnect mdl indication */
+#define MCA_RECONNECT_CFM_EVT       4       /* reconnect mdl confirm */
+#define MCA_ABORT_IND_EVT           5       /* abort mdl indication */
+#define MCA_ABORT_CFM_EVT           6       /* abort mdl confirm */
+#define MCA_DELETE_IND_EVT          7       /* delete mdl indication */
+#define MCA_DELETE_CFM_EVT          8       /* delete mdl confirm */
+
+#define MCA_SYNC_CAP_IND_EVT        0x11   /* request sync capabilities & requirements */
+#define MCA_SYNC_CAP_CFM_EVT        0x12   /* indicate completion */
+#define MCA_SYNC_SET_IND_EVT        0x13   /* request to set the time-stamp clock */
+#define MCA_SYNC_SET_CFM_EVT        0x14   /* indicate completion */
+#define MCA_SYNC_INFO_IND_EVT       0x15   /* update of the actual time-stamp clock instant from the sync slave */
+
+#define MCA_CONNECT_IND_EVT         0x20    /* Control channel connected */
+#define MCA_DISCONNECT_IND_EVT      0x21    /* Control channel disconnected */
+#define MCA_OPEN_IND_EVT            0x22    /* Data channel open indication */
+#define MCA_OPEN_CFM_EVT            0x23    /* Data channel open confirm */
+#define MCA_CLOSE_IND_EVT           0x24    /* Data channel close indication */
+#define MCA_CLOSE_CFM_EVT           0x25    /* Data channel close confirm */
+#define MCA_CONG_CHG_EVT            0x26    /* congestion change event */
+#define MCA_RSP_TOUT_IND_EVT        0x27    /* Control channel message response timeout */
+/*****************************************************************************
+**  Type Definitions
+*****************************************************************************/
+typedef UINT8  tMCA_HANDLE; /* the handle for registration. 1 based index to rcb */
+typedef UINT8  tMCA_CL;     /* the handle for a control channel; reported at MCA_CONNECT_IND_EVT */
+typedef UINT8  tMCA_DEP;    /* the handle for MCA_CreateDep. This is also the local mdep_id */
+typedef UINT16 tMCA_DL;     /* the handle for the data channel. This is reported at MCA_OPEN_CFM_EVT or MCA_OPEN_IND_EVT */
+
+/* This is the data callback function.  It is executed when MCAP has a data
+** packet ready for the application.
+*/
+typedef void (tMCA_DATA_CBACK)(tMCA_DL mdl, BT_HDR *p_pkt);
+
+
+/* This structure contains parameters which are set at registration. */
+typedef struct {
+    UINT32      rsp_tout;   /* MCAP signaling response timeout */
+    UINT16      ctrl_psm;   /* L2CAP PSM for the MCAP control channel */
+    UINT16      data_psm;   /* L2CAP PSM for the MCAP data channel */
+    UINT16      sec_mask;   /* Security mask for BTM_SetSecurityLevel() */
+} tMCA_REG;
+
+/* This structure contains parameters to create a MDEP. */
+typedef struct {
+    UINT8           type;       /* MCA_TDEP_DATA, or MCA_TDEP_ECHO. a regiatration may have only one MCA_TDEP_ECHO MDEP */
+    UINT8           max_mdl;    /* The maximum number of MDLs for this MDEP (max is MCA_NUM_MDLS) */
+    tMCA_DATA_CBACK *p_data_cback;  /* Data callback function */
+} tMCA_CS;
+
+#define MCA_FCS_NONE        0       /* fcs_present=FALSE */
+#define MCA_FCS_BYPASS      0x10    /* fcs_present=TRUE, fcs=L2CAP_CFG_FCS_BYPASS */
+#define MCA_FCS_USE         0x11    /* fcs_present=TRUE, fcs=L2CAP_CFG_FCS_USE */
+#define MCA_FCS_PRESNT_MASK 0x10    /* fcs_present=TRUE */
+#define MCA_FCS_USE_MASK    0x01    /* mask for fcs */
+typedef UINT8 tMCA_FCS_OPT;
+
+/* This structure contains L2CAP configuration parameters for the channel. */
+typedef struct {
+    tL2CAP_FCR_OPTS fcr_opt;
+    UINT16          user_rx_buf_size;
+    UINT16          user_tx_buf_size;
+    UINT16          fcr_rx_buf_size;
+    UINT16          fcr_tx_buf_size;
+    tMCA_FCS_OPT    fcs;
+    UINT16          data_mtu;   /* L2CAP MTU of the MCAP data channel */
+} tMCA_CHNL_CFG;
+
+
+/* Header structure for callback event parameters. */
+typedef struct {
+    UINT16          mdl_id;     /* The associated MDL ID */
+    UINT8           op_code;    /* The op (request/response) code */
+} tMCA_EVT_HDR;
+
+/* Response Header structure for callback event parameters. */
+typedef struct {
+    UINT16          mdl_id;     /* The associated MDL ID */
+    UINT8           op_code;    /* The op (request/response) code */
+    UINT8           rsp_code;   /* The response code */
+} tMCA_RSP_EVT;
+
+/* This data structure is associated with the MCA_CREATE_IND_EVT. */
+typedef struct {
+    UINT16          mdl_id;     /* The associated MDL ID */
+    UINT8           op_code;    /* The op (request/response) code */
+    UINT8           dep_id;     /* MDEP ID */
+    UINT8           cfg;        /* The configuration to negotiate */
+} tMCA_CREATE_IND;
+
+/* This data structure is associated with the MCA_CREATE_CFM_EVT. */
+typedef struct {
+    UINT16          mdl_id;     /* The associated MDL ID */
+    UINT8           op_code;    /* The op (request/response) code */
+    UINT8           rsp_code;   /* The response code. */
+    UINT8           cfg;        /* The configuration to negotiate */
+} tMCA_CREATE_CFM;
+
+/* This data structure is associated with MCA_CONNECT_IND_EVT. */
+typedef struct {
+    BD_ADDR         bd_addr;    /* The peer address */
+    UINT16          mtu;        /* peer mtu */
+} tMCA_CONNECT_IND;
+
+/* This data structure is associated with MCA_DISCONNECT_IND_EVT. */
+typedef struct {
+    BD_ADDR         bd_addr;    /* The peer address */
+    UINT16          reason;     /* disconnect reason given by L2CAP */
+} tMCA_DISCONNECT_IND;
+
+/* This data structure is associated with MCA_OPEN_IND_EVT, and MCA_OPEN_CFM_EVT. */
+typedef struct {
+    UINT16          mdl_id;     /* The associated MDL ID */
+    tMCA_DL         mdl;        /* The handle for the data channel */
+    UINT16          mtu;        /* peer mtu */
+} tMCA_DL_OPEN;
+
+/* This data structure is associated with MCA_CLOSE_IND_EVT and MCA_CLOSE_CFM_EVT. */
+typedef struct {
+    UINT16          mdl_id;     /* The associated MDL ID */
+    tMCA_DL         mdl;        /* The handle for the data channel */
+    UINT16          reason;     /* disconnect reason given by L2CAP */
+} tMCA_DL_CLOSE;
+
+/* This data structure is associated with MCA_CONG_CHG_EVT. */
+typedef struct {
+    UINT16          mdl_id;     /* N/A - This is a place holder */
+    tMCA_DL	        mdl;        /* The handle for the data channel */
+    BOOLEAN         cong;       /* TRUE, if the channel is congested */
+} tMCA_CONG_CHG;
+
+/* Union of all control callback event data structures */
+typedef union {
+    tMCA_EVT_HDR        hdr;
+    tMCA_RSP_EVT        rsp;
+    tMCA_CREATE_IND     create_ind;
+    tMCA_CREATE_CFM     create_cfm;
+    tMCA_EVT_HDR        reconnect_ind;
+    tMCA_RSP_EVT        reconnect_cfm;
+    tMCA_EVT_HDR        abort_ind;
+    tMCA_RSP_EVT        abort_cfm;
+    tMCA_EVT_HDR        delete_ind;
+    tMCA_RSP_EVT        delete_cfm;
+    tMCA_CONNECT_IND    connect_ind;
+    tMCA_DISCONNECT_IND disconnect_ind;
+    tMCA_DL_OPEN        open_ind;
+    tMCA_DL_OPEN        open_cfm;
+    tMCA_DL_CLOSE       close_ind;
+    tMCA_DL_CLOSE       close_cfm;
+    tMCA_CONG_CHG       cong_chg;
+} tMCA_CTRL;
+
+/* This is the control callback function.  This function passes control events
+** to the application.
+*/
+typedef void (tMCA_CTRL_CBACK)(tMCA_HANDLE handle, tMCA_CL mcl, UINT8 event,
+                                tMCA_CTRL *p_data);
+
+
+/*******************************************************************************
+**
+** Function         MCA_Init
+**
+** Description      Initialize MCAP internal control blocks.
+**                  This function is called at stack start up.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void MCA_Init(void);
+
+/*******************************************************************************
+**
+** Function         MCA_SetTraceLevel
+**
+** Description      This function sets the debug trace level for MCA.
+**                  If 0xff is passed, the current trace level is returned.
+**
+**                  Input Parameters:
+**                      level:  The level to set the MCA tracing to:
+**                      0xff-returns the current setting.
+**                      0-turns off tracing.
+**                      >= 1-Errors.
+**                      >= 2-Warnings.
+**                      >= 3-APIs.
+**                      >= 4-Events.
+**                      >= 5-Debug.
+**
+** Returns          The new trace level or current trace level if
+**                  the input parameter is 0xff.
+**
+*******************************************************************************/
+extern UINT8 MCA_SetTraceLevel (UINT8 level);
+
+/*******************************************************************************
+**
+** Function         MCA_Register
+**
+** Description      This function registers an MCAP implementation.
+**                  It is assumed that the control channel PSM and data channel
+**                  PSM are not used by any other instances of the stack.
+**                  If the given p_reg->ctrl_psm is 0, this handle is INT only.
+**
+** Returns          0, if failed. Otherwise, the MCA handle.
+**
+*******************************************************************************/
+extern tMCA_HANDLE MCA_Register(tMCA_REG *p_reg, tMCA_CTRL_CBACK *p_cback);
+
+/*******************************************************************************
+**
+** Function         MCA_Deregister
+**
+** Description      This function is called to deregister an MCAP implementation.
+**                  Before this function can be called, all control and data
+**                  channels must be removed with MCA_DisconnectReq and MCA_CloseReq.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void MCA_Deregister(tMCA_HANDLE handle);
+
+/*******************************************************************************
+**
+** Function         MCA_CreateDep
+**
+** Description      Create a data endpoint.  If the MDEP is created successfully,
+**                  the MDEP ID is returned in *p_dep. After a data endpoint is
+**                  created, an application can initiate a connection between this
+**                  endpoint and an endpoint on a peer device.
+**
+** Returns          MCA_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+extern tMCA_RESULT MCA_CreateDep(tMCA_HANDLE handle, tMCA_DEP *p_dep, tMCA_CS *p_cs);
+
+/*******************************************************************************
+**
+** Function         MCA_DeleteDep
+**
+** Description      Delete a data endpoint.  This function is called when
+**                  the implementation is no longer using a data endpoint.
+**                  If this function is called when the endpoint is connected
+**                  the connection is closed and the data endpoint
+**                  is removed.
+**
+** Returns          MCA_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+extern tMCA_RESULT MCA_DeleteDep(tMCA_HANDLE handle, tMCA_DEP dep);
+
+/*******************************************************************************
+**
+** Function         MCA_ConnectReq
+**
+** Description      This function initiates an MCAP control channel connection
+**                  to the peer device.  When the connection is completed, an
+**                  MCA_CONNECT_IND_EVT is reported to the application via its
+**                  control callback function.
+**                  This control channel is identified by tMCA_CL.
+**                  If the connection attempt fails, an MCA_DISCONNECT_IND_EVT is
+**                  reported. The security mask parameter overrides the outgoing
+**                  security mask set in MCA_Register().
+**
+** Returns          MCA_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+extern tMCA_RESULT MCA_ConnectReq(tMCA_HANDLE handle, BD_ADDR bd_addr,
+                                  UINT16 ctrl_psm,
+                                  UINT16 sec_mask);
+
+/*******************************************************************************
+**
+** Function         MCA_DisconnectReq
+**
+** Description      This function disconnect an MCAP control channel
+**                  to the peer device.
+**                  If associated data channel exists, they are disconnected.
+**                  When the MCL is disconnected an MCA_DISCONNECT_IND_EVT is
+**                  reported to the application via its control callback function.
+**
+** Returns          MCA_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+extern tMCA_RESULT MCA_DisconnectReq(tMCA_CL mcl);
+
+/*******************************************************************************
+**
+** Function         MCA_CreateMdl
+**
+** Description      This function sends a CREATE_MDL request to the peer device.
+**                  When the response is received, a MCA_CREATE_CFM_EVT is reported
+**                  with the given MDL ID.
+**                  If the response is successful, a data channel is open
+**                  with the given p_chnl_cfg
+**                  When the data channel is open successfully, a MCA_OPEN_CFM_EVT
+**                  is reported. This data channel is identified as tMCA_DL.
+**
+** Returns          MCA_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+extern tMCA_RESULT MCA_CreateMdl(tMCA_CL mcl, tMCA_DEP dep, UINT16 data_psm,
+                                 UINT16 mdl_id, UINT8 peer_dep_id,
+                                 UINT8 cfg, const tMCA_CHNL_CFG *p_chnl_cfg);
+
+/*******************************************************************************
+**
+** Function         MCA_CreateMdlRsp
+**
+** Description      This function sends a CREATE_MDL response to the peer device
+**                  in response to a received MCA_CREATE_IND_EVT.
+**                  If the rsp_code is successful, a data channel is open
+**                  with the given p_chnl_cfg
+**                  When the data channel is open successfully, a MCA_OPEN_IND_EVT
+**                  is reported. This data channel is identified as tMCA_DL.
+**
+** Returns          MCA_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+extern tMCA_RESULT MCA_CreateMdlRsp(tMCA_CL mcl, tMCA_DEP dep,
+                                    UINT16 mdl_id, UINT8 cfg, UINT8 rsp_code,
+                                    const tMCA_CHNL_CFG *p_chnl_cfg);
+
+/*******************************************************************************
+**
+** Function         MCA_CloseReq
+**
+** Description      Close a data channel.  When the channel is closed, an
+**                  MCA_CLOSE_CFM_EVT is sent to the application via the
+**                  control callback function for this handle.
+**
+** Returns          MCA_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+extern tMCA_RESULT MCA_CloseReq(tMCA_DL mdl);
+
+/*******************************************************************************
+**
+** Function         MCA_ReconnectMdl
+**
+** Description      This function sends a RECONNECT_MDL request to the peer device.
+**                  When the response is received, a MCA_RECONNECT_CFM_EVT is reported.
+**                  If the response is successful, a data channel is open.
+**                  When the data channel is open successfully, a MCA_OPEN_CFM_EVT
+**                  is reported.
+**
+** Returns          MCA_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+extern tMCA_RESULT MCA_ReconnectMdl(tMCA_CL mcl, tMCA_DEP dep, UINT16 data_psm,
+                                    UINT16 mdl_id, const tMCA_CHNL_CFG *p_chnl_cfg);
+
+/*******************************************************************************
+**
+** Function         MCA_ReconnectMdlRsp
+**
+** Description      This function sends a RECONNECT_MDL response to the peer device
+**                  in response to a MCA_RECONNECT_IND_EVT event.
+**                  If the response is successful, a data channel is open.
+**                  When the data channel is open successfully, a MCA_OPEN_IND_EVT
+**                  is reported.
+**
+** Returns          MCA_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+extern tMCA_RESULT MCA_ReconnectMdlRsp(tMCA_CL mcl, tMCA_DEP dep,
+                                       UINT16 mdl_id, UINT8 rsp_code,
+                                       const tMCA_CHNL_CFG *p_chnl_cfg);
+
+/*******************************************************************************
+**
+** Function         MCA_DataChnlCfg
+**
+** Description      This function initiates a data channel connection toward the
+**                  connected peer device.
+**                  When the data channel is open successfully, a MCA_OPEN_CFM_EVT
+**                  is reported. This data channel is identified as tMCA_DL.
+**
+** Returns          MCA_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+extern tMCA_RESULT MCA_DataChnlCfg(tMCA_CL mcl, const tMCA_CHNL_CFG *p_chnl_cfg);
+
+/*******************************************************************************
+**
+** Function         MCA_Abort
+**
+** Description      This function sends a ABORT_MDL request to the peer device.
+**                  When the response is received, a MCA_ABORT_CFM_EVT is reported.
+**
+** Returns          MCA_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+extern tMCA_RESULT MCA_Abort(tMCA_CL mcl);
+
+/*******************************************************************************
+**
+** Function         MCA_Delete
+**
+** Description      This function sends a DELETE_MDL request to the peer device.
+**                  When the response is received, a MCA_DELETE_CFM_EVT is reported.
+**
+** Returns          MCA_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+extern tMCA_RESULT MCA_Delete(tMCA_CL mcl, UINT16 mdl_id);
+
+/*******************************************************************************
+**
+** Function         MCA_WriteReq
+**
+** Description      Send a data packet to the peer device.
+**
+**                  The application passes the packet using the BT_HDR structure.
+**                  The offset field must be equal to or greater than L2CAP_MIN_OFFSET.
+**                  This allows enough space in the buffer for the L2CAP header.
+**
+**                  The memory pointed to by p_pkt must be a GKI buffer
+**                  allocated by the application.  This buffer will be freed
+**                  by the protocol stack; the application must not free
+**                  this buffer.
+**
+** Returns          MCA_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+extern tMCA_RESULT MCA_WriteReq(tMCA_DL mdl, BT_HDR *p_pkt);
+
+/*******************************************************************************
+**
+** Function         MCA_GetL2CapChannel
+**
+** Description      Get the L2CAP CID used by the given data channel handle.
+**
+** Returns          L2CAP channel ID if successful, otherwise 0.
+**
+*******************************************************************************/
+extern UINT16 MCA_GetL2CapChannel (tMCA_DL mdl);
+
+#endif /* MCA_API_H */
diff --git a/rtkbt/code/bt/stack/include/mca_defs.h b/rtkbt/code/bt/stack/include/mca_defs.h
new file mode 100755
index 0000000..cca7fe0
--- /dev/null
+++ b/rtkbt/code/bt/stack/include/mca_defs.h
@@ -0,0 +1,87 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This contains constants definitions and other information from the MCAP
+ *  specification.
+ *
+ ******************************************************************************/
+#ifndef MCA_DEFS_H
+#define MCA_DEFS_H
+
+/*****************************************************************************
+** constants
+*****************************************************************************/
+#define MCA_MIN_MTU                 48
+
+/* standard op codes */
+#define MCA_OP_ERROR_RSP            0x00   /* invalid opcode response */
+#define MCA_OP_MDL_CREATE_REQ       0x01   /* create an MDL, wait for an associated data channel connection */
+#define MCA_OP_MDL_CREATE_RSP       0x02   /* response to above request */
+#define MCA_OP_MDL_RECONNECT_REQ    0x03   /* req to prepare to rvc a data channel conn associated with a prev MDL */
+#define MCA_OP_MDL_RECONNECT_RSP    0x04   /* response to above request */
+#define MCA_OP_MDL_ABORT_REQ        0x05   /* stop waiting for a data channel connection */
+#define MCA_OP_MDL_ABORT_RSP        0x06   /* response to above request */
+#define MCA_OP_MDL_DELETE_REQ       0x07   /* delete an MDL */
+#define MCA_OP_MDL_DELETE_RSP       0x08   /* response to above request */
+#define MCA_NUM_STANDARD_OPCODE     (1+MCA_OP_MDL_DELETE_RSP)
+
+/* clock synchronization op codes */
+#define MCA_OP_SYNC_CAP_REQ         0x11   /* request sync capabilities & requirements */
+#define MCA_OP_SYNC_CAP_RSP         0x12   /* indicate completion */
+#define MCA_OP_SYNC_SET_REQ         0x13   /* request to set the time-stamp clock */
+#define MCA_OP_SYNC_SET_RSP         0x14   /* indicate completion */
+#define MCA_OP_SYNC_INFO_IND        0x15   /* update of the actual time-stamp clock instant from the sync slave */
+
+#define MCA_FIRST_SYNC_OP          MCA_OP_SYNC_CAP_REQ
+#define MCA_LAST_SYNC_OP           MCA_OP_SYNC_INFO_IND
+
+/* response code */
+#define MCA_RSP_SUCCESS     0x00    /* The corresponding request was received and processed successfully. */
+#define MCA_RSP_BAD_OPCODE  0x01    /* The Op Code received is not valid (i.e. neither a Standard Op Code nor a Clock Synchronization Protocol Op Code). */
+#define MCA_RSP_BAD_PARAM   0x02    /* One or more of the values in the received request is invalid. */
+/* MCA_RSP_BAD_PARAM shall be used when:
+- The request length is invalid
+- Some of the parameters have invalid values and none of the other defined Response Codes are more appropriate.
+*/
+#define MCA_RSP_BAD_MDEP    0x03    /* The MDEP ID referenced does not exist on this device. */
+#define MCA_RSP_MDEP_BUSY   0x04    /* The requested MDEP currently has as many active MDLs as it can manage simultaneously. */
+#define MCA_RSP_BAD_MDL     0x05    /* The MDL ID referenced is invalid. */
+/* MCA_RSP_BAD_MDL shall be used when:
+- A reserved or invalid value for MDL ID was used.
+- The MDL ID referenced is not available (was never created, has been deleted, or was otherwise lost),
+- The MDL ID referenced in the Abort request is not the same value that was used to initiate the PENDING state
+*/
+#define MCA_RSP_MDL_BUSY    0x06    /* The device is temporarily unable to complete the request. This is intended for reasons not related to the physical sensor (e.g. communication resources unavailable). */
+#define MCA_RSP_BAD_OP      0x07    /* The received request is invalid in the current state. */
+/* MCA_RSP_BAD_OP is used when
+- Abort request was received while not in the PENDING state.
+- Create, Reconnect, or Delete request was received while in the PENDING state.
+- A response is received when a request is expected
+*/
+#define MCA_RSP_NO_RESOURCE 0x08    /* The device is temporarily unable to complete the request. This is intended for reasons relating to the physical sensor (e.g. hardware fault, low battery), or when processing resources are temporarily committed to other processes. */
+#define MCA_RSP_ERROR       0x09    /* An internal error other than those listed in this table was encountered while processing the request. */
+#define MCA_RSP_NO_SUPPORT  0x0A    /* The Op Code that was used in this request is not supported. */
+#define MCA_RSP_CFG_REJ     0x0B    /* A configuration required by a MD_CREATE_MDL or MD_RECONNECT_MDL operation has been rejected. */
+
+#define MCA_MAX_MDEP_ID     0x7F    /* the valid range for MDEP ID is 1-0x7F */
+#define MCA_IS_VALID_MDL_ID(xxx)    (((xxx)>0) && ((xxx)<=0xFEFF))
+#define MCA_ALL_MDL_ID      0xFFFF
+
+#endif /* MCA_DEFS_H */
diff --git a/rtkbt/code/bt/stack/include/pan_api.h b/rtkbt/code/bt/stack/include/pan_api.h
new file mode 100755
index 0000000..17826b5
--- /dev/null
+++ b/rtkbt/code/bt/stack/include/pan_api.h
@@ -0,0 +1,459 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2001-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  this file contains the PAN API definitions
+ *
+ ******************************************************************************/
+#ifndef PAN_API_H
+#define PAN_API_H
+
+#include "bnep_api.h"
+
+/*****************************************************************************
+**  Constants
+*****************************************************************************/
+
+/* Define the minimum offset needed in a GKI buffer for
+** sending PAN packets. Note, we are currently not sending
+** extension headers, but may in the future, so allow
+** space for them
+*/
+#define PAN_MINIMUM_OFFSET          BNEP_MINIMUM_OFFSET
+
+
+/*
+** The handle is passed from BNEP to PAN. The same handle is used
+** between PAN and application as well
+*/
+#define PAN_INVALID_HANDLE          BNEP_INVALID_HANDLE
+
+/* Bit map for PAN roles */
+#define PAN_ROLE_CLIENT         0x01     /* PANU role */
+#define PAN_ROLE_GN_SERVER      0x02     /* GN role */
+#define PAN_ROLE_NAP_SERVER     0x04     /* NAP role */
+
+/* Bitmap to indicate the usage of the Data */
+#define PAN_DATA_TO_HOST        0x01
+#define PAN_DATA_TO_LAN         0x02
+
+
+/*****************************************************************************
+**  Type Definitions
+*****************************************************************************/
+
+/* Define the result codes from PAN */
+enum
+{
+    PAN_SUCCESS,                                                /* Success                           */
+    PAN_DISCONNECTED            = BNEP_CONN_DISCONNECTED,       /* Connection terminated   */
+    PAN_CONN_FAILED             = BNEP_CONN_FAILED,             /* Connection failed                 */
+    PAN_NO_RESOURCES            = BNEP_NO_RESOURCES,            /* No resources                      */
+    PAN_MTU_EXCEDED             = BNEP_MTU_EXCEDED,             /* Attempt to write long data        */
+    PAN_INVALID_OFFSET          = BNEP_INVALID_OFFSET,          /* Insufficient offset in GKI buffer */
+    PAN_CONN_FAILED_CFG         = BNEP_CONN_FAILED_CFG,         /* Connection failed cos of config   */
+    PAN_INVALID_SRC_ROLE        = BNEP_CONN_FAILED_SRC_UUID,    /* Connection failed wrong source UUID   */
+    PAN_INVALID_DST_ROLE        = BNEP_CONN_FAILED_DST_UUID,    /* Connection failed wrong destination UUID   */
+    PAN_CONN_FAILED_UUID_SIZE   = BNEP_CONN_FAILED_UUID_SIZE,   /* Connection failed wrong size UUID   */
+    PAN_Q_SIZE_EXCEEDED         = BNEP_Q_SIZE_EXCEEDED,         /* Too many buffers to dest          */
+    PAN_TOO_MANY_FILTERS        = BNEP_TOO_MANY_FILTERS,        /* Too many local filters specified  */
+    PAN_SET_FILTER_FAIL         = BNEP_SET_FILTER_FAIL,         /* Set Filter failed  */
+    PAN_WRONG_HANDLE            = BNEP_WRONG_HANDLE,            /* Wrong handle for the connection  */
+    PAN_WRONG_STATE             = BNEP_WRONG_STATE,             /* Connection is in wrong state */
+    PAN_SECURITY_FAIL           = BNEP_SECURITY_FAIL,           /* Failed because of security */
+    PAN_IGNORE_CMD              = BNEP_IGNORE_CMD,              /* To ignore the rcvd command */
+    PAN_TX_FLOW_ON              = BNEP_TX_FLOW_ON,              /* tx data flow enabled */
+    PAN_TX_FLOW_OFF	            = BNEP_TX_FLOW_OFF,             /* tx data flow disabled */
+    PAN_FAILURE                                                 /* Failure                      */
+
+};
+typedef UINT8 tPAN_RESULT;
+
+
+/*****************************************************************
+**       Callback Function Prototypes
+*****************************************************************/
+
+/* This is call back function used to report connection status
+**      to the application. The second parameter TRUE means
+**      to create the bridge and FALSE means to remove it.
+*/
+typedef void (tPAN_CONN_STATE_CB) (UINT16 handle, BD_ADDR bd_addr, tPAN_RESULT state, BOOLEAN is_role_change,
+                                        UINT8 src_role, UINT8 dst_role);
+
+
+/* This is call back function used to create bridge for the
+**      Connected device. The parameter "state" indicates
+**      whether to create the bridge or remove it. TRUE means
+**      to create the bridge and FALSE means to remove it.
+*/
+typedef void (tPAN_BRIDGE_REQ_CB) (BD_ADDR bd_addr, BOOLEAN state);
+
+
+/* Data received indication callback prototype. Parameters are
+**              Source BD/Ethernet Address
+**              Dest BD/Ethernet address
+**              Protocol
+**              Address of buffer (or data if non-GKI)
+**              Length of data (non-GKI)
+**              ext is flag to indicate whether it has aby extension headers
+**              Flag used to indicate to forward on LAN
+**                      FALSE - Use it for internal stack
+**                      TRUE  - Send it across the ethernet as well
+*/
+typedef void (tPAN_DATA_IND_CB) (UINT16 handle,
+                                 BD_ADDR src,
+                                 BD_ADDR dst,
+                                 UINT16 protocol,
+                                 UINT8 *p_data,
+                                 UINT16 len,
+                                 BOOLEAN ext,
+                                 BOOLEAN forward);
+
+
+/* Data buffer received indication callback prototype. Parameters are
+**              Source BD/Ethernet Address
+**              Dest BD/Ethernet address
+**              Protocol
+**              pointer to the data buffer
+**              ext is flag to indicate whether it has aby extension headers
+**              Flag used to indicate to forward on LAN
+**                      FALSE - Use it for internal stack
+**                      TRUE  - Send it across the ethernet as well
+*/
+typedef void (tPAN_DATA_BUF_IND_CB) (UINT16 handle,
+                                     BD_ADDR src,
+                                     BD_ADDR dst,
+                                     UINT16 protocol,
+                                     BT_HDR *p_buf,
+                                     BOOLEAN ext,
+                                     BOOLEAN forward);
+
+
+/* Flow control callback for TX data. Parameters are
+**              Handle to the connection
+**              Event  flow status
+*/
+typedef void (tPAN_TX_DATA_FLOW_CB) (UINT16 handle,
+                                     tPAN_RESULT  event);
+
+/* Filters received indication callback prototype. Parameters are
+**              Handle to the connection
+**              TRUE if the cb is called for indication
+**              Ignore this if it is indication, otherwise it is the result
+**                      for the filter set operation performed by the local
+**                      device
+**              Number of protocol filters present
+**              Pointer to the filters start. Filters are present in pairs
+**                      of start of the range and end of the range.
+**                      They will be present in big endian order. First
+**                      two bytes will be starting of the first range and
+**                      next two bytes will be ending of the range.
+*/
+typedef void (tPAN_FILTER_IND_CB) (UINT16 handle,
+                                   BOOLEAN indication,
+                                   tBNEP_RESULT result,
+                                   UINT16 num_filters,
+                                   UINT8 *p_filters);
+
+
+
+/* Multicast Filters received indication callback prototype. Parameters are
+**              Handle to the connection
+**              TRUE if the cb is called for indication
+**              Ignore this if it is indication, otherwise it is the result
+**                      for the filter set operation performed by the local
+**                      device
+**              Number of multicast filters present
+**              Pointer to the filters start. Filters are present in pairs
+**                      of start of the range and end of the range.
+**                      First six bytes will be starting of the first range and
+**                      next six bytes will be ending of the range.
+*/
+typedef void (tPAN_MFILTER_IND_CB) (UINT16 handle,
+                                    BOOLEAN indication,
+                                    tBNEP_RESULT result,
+                                    UINT16 num_mfilters,
+                                    UINT8 *p_mfilters);
+
+
+
+
+/* This structure is used to register with PAN profile
+** It is passed as a parameter to PAN_Register call.
+*/
+typedef struct
+{
+    tPAN_CONN_STATE_CB          *pan_conn_state_cb;     /* Connection state callback */
+    tPAN_BRIDGE_REQ_CB          *pan_bridge_req_cb;     /* Bridge request callback */
+    tPAN_DATA_IND_CB            *pan_data_ind_cb;       /* Data indication callback */
+    tPAN_DATA_BUF_IND_CB        *pan_data_buf_ind_cb;   /* Data buffer indication callback */
+    tPAN_FILTER_IND_CB          *pan_pfilt_ind_cb;      /* protocol filter indication callback */
+    tPAN_MFILTER_IND_CB         *pan_mfilt_ind_cb;      /* multicast filter indication callback */
+    tPAN_TX_DATA_FLOW_CB        *pan_tx_data_flow_cb;   /* data flow callback */
+    char                        *user_service_name;     /* Service name for PANU role */
+    char                        *gn_service_name;       /* Service name for GN role */
+    char                        *nap_service_name;      /* Service name for NAP role */
+
+} tPAN_REGISTER;
+
+
+/*****************************************************************************
+**  External Function Declarations
+*****************************************************************************/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+/*******************************************************************************
+**
+** Function         PAN_Register
+**
+** Description      This function is called by the application to register
+**                  its callbacks with PAN profile. The application then
+**                  should set the PAN role explicitly.
+**
+** Parameters:      p_register - contains all callback function pointers
+**
+**
+** Returns          none
+**
+*******************************************************************************/
+extern void PAN_Register (tPAN_REGISTER *p_register);
+
+
+/*******************************************************************************
+**
+** Function         PAN_Deregister
+**
+** Description      This function is called by the application to de-register
+**                  its callbacks with PAN profile. This will make the PAN to
+**                  become inactive. This will deregister PAN services from SDP
+**                  and close all active connections
+**
+** Returns          none
+**
+*******************************************************************************/
+extern void PAN_Deregister (void);
+
+/*******************************************************************************
+**
+** Function         PAN_SetRole
+**
+** Description      This function is called by the application to set the PAN
+**                  profile role. This should be called after PAN_Register.
+**                  This can be called any time to change the PAN role
+**
+** Parameters:      role        - is bit map of roles to be active
+**                                      PAN_ROLE_CLIENT is for PANU role
+**                                      PAN_ROLE_GN_SERVER is for GN role
+**                                      PAN_ROLE_NAP_SERVER is for NAP role
+**                  sec_mask    - Security mask for different roles
+**                                      It is array of UINT8. The byte represent the
+**                                      security for roles PANU, GN and NAP in order
+**                  p_user_name - Service name for PANU role
+**                  p_gn_name   - Service name for GN role
+**                  p_nap_name  - Service name for NAP role
+**                                      Can be NULL if user wants it to be default
+**
+** Returns          PAN_SUCCESS     - if the role is set successfully
+**                  PAN_FAILURE     - if the role is not valid
+**
+*******************************************************************************/
+extern tPAN_RESULT PAN_SetRole (UINT8 role,
+                                UINT8 *sec_mask,
+                                char *p_user_name,
+                                char *p_gn_name,
+                                char *p_nap_name);
+
+/*******************************************************************************
+**
+** Function         PAN_Connect
+**
+** Description      This function is called by the application to initiate a
+**                  connection to the remote device
+**
+** Parameters:      rem_bda     - BD Addr of the remote device
+**                  src_role    - Role of the local device for the connection
+**                  dst_role    - Role of the remote device for the connection
+**                                      PAN_ROLE_CLIENT is for PANU role
+**                                      PAN_ROLE_GN_SERVER is for GN role
+**                                      PAN_ROLE_NAP_SERVER is for NAP role
+**                  *handle     - Pointer for returning Handle to the connection
+**
+** Returns          PAN_SUCCESS      - if the connection is initiated successfully
+**                  PAN_NO_RESOURCES - resources are not sufficent
+**                  PAN_FAILURE      - if the connection cannot be initiated
+**                                           this can be because of the combination of
+**                                           src and dst roles may not be valid or
+**                                           allowed at that point of time
+**
+*******************************************************************************/
+extern tPAN_RESULT PAN_Connect (BD_ADDR rem_bda, UINT8 src_role, UINT8 dst_role, UINT16 *handle);
+
+/*******************************************************************************
+**
+** Function         PAN_Disconnect
+**
+** Description      This is used to disconnect the connection
+**
+** Parameters:      handle           - handle for the connection
+**
+** Returns          PAN_SUCCESS      - if the connection is closed successfully
+**                  PAN_FAILURE      - if the connection is not found or
+**                                           there is an error in disconnecting
+**
+*******************************************************************************/
+extern tPAN_RESULT PAN_Disconnect (UINT16 handle);
+
+/*******************************************************************************
+**
+** Function         PAN_Write
+**
+** Description      This sends data over the PAN connections. If this is called
+**                  on GN or NAP side and the packet is multicast or broadcast
+**                  it will be sent on all the links. Otherwise the correct link
+**                  is found based on the destination address and forwarded on it
+**                  If the return value is not PAN_SUCCESS the application should
+**                  take care of releasing the message buffer
+**
+** Parameters:      dst      - MAC or BD Addr of the destination device
+**                  src      - MAC or BD Addr of the source who sent this packet
+**                  protocol - protocol of the ethernet packet like IP or ARP
+**                  p_data   - pointer to the data
+**                  len      - length of the data
+**                  ext      - to indicate that extension headers present
+**
+** Returns          PAN_SUCCESS       - if the data is sent successfully
+**                  PAN_FAILURE       - if the connection is not found or
+**                                           there is an error in sending data
+**
+*******************************************************************************/
+extern tPAN_RESULT PAN_Write (UINT16 handle,
+                              BD_ADDR dst,
+                              BD_ADDR src,
+                              UINT16 protocol,
+                              UINT8 *p_data,
+                              UINT16 len,
+                              BOOLEAN ext);
+
+/*******************************************************************************
+**
+** Function         PAN_WriteBuf
+**
+** Description      This sends data over the PAN connections. If this is called
+**                  on GN or NAP side and the packet is multicast or broadcast
+**                  it will be sent on all the links. Otherwise the correct link
+**                  is found based on the destination address and forwarded on it
+**                  If the return value is not PAN_SUCCESS the application should
+**                  take care of releasing the message buffer
+**
+** Parameters:      dst      - MAC or BD Addr of the destination device
+**                  src      - MAC or BD Addr of the source who sent this packet
+**                  protocol - protocol of the ethernet packet like IP or ARP
+**                  p_buf    - pointer to the data buffer
+**                  ext      - to indicate that extension headers present
+**
+** Returns          PAN_SUCCESS       - if the data is sent successfully
+**                  PAN_FAILURE       - if the connection is not found or
+**                                           there is an error in sending data
+**
+*******************************************************************************/
+extern tPAN_RESULT PAN_WriteBuf (UINT16 handle,
+                                 BD_ADDR dst,
+                                 BD_ADDR src,
+                                 UINT16 protocol,
+                                 BT_HDR *p_buf,
+                                 BOOLEAN ext);
+
+/*******************************************************************************
+**
+** Function         PAN_SetProtocolFilters
+**
+** Description      This function is used to set protocol filters on the peer
+**
+** Parameters:      handle      - handle for the connection
+**                  num_filters - number of protocol filter ranges
+**                  start       - array of starting protocol numbers
+**                  end         - array of ending protocol numbers
+**
+**
+** Returns          PAN_SUCCESS        if protocol filters are set successfully
+**                  PAN_FAILURE        if connection not found or error in setting
+**
+*******************************************************************************/
+extern tPAN_RESULT PAN_SetProtocolFilters (UINT16 handle,
+                                           UINT16 num_filters,
+                                           UINT16 *p_start_array,
+                                           UINT16 *p_end_array);
+
+/*******************************************************************************
+**
+** Function         PAN_SetMulticastFilters
+**
+** Description      This function is used to set multicast filters on the peer
+**
+** Parameters:      handle      - handle for the connection
+**                  num_filters - number of multicast filter ranges
+**                  p_start_array - Pointer to sequence of beginings of all
+**                                         multicast address ranges
+**                  p_end_array   - Pointer to sequence of ends of all
+**                                         multicast address ranges
+**
+**
+** Returns          PAN_SUCCESS        if multicast filters are set successfully
+**                  PAN_FAILURE        if connection not found or error in setting
+**
+*******************************************************************************/
+extern tBNEP_RESULT PAN_SetMulticastFilters (UINT16 handle,
+                                             UINT16 num_mcast_filters,
+                                             UINT8 *p_start_array,
+                                             UINT8 *p_end_array);
+
+/*******************************************************************************
+**
+** Function         PAN_SetTraceLevel
+**
+** Description      This function sets the trace level for PAN. If called with
+**                  a value of 0xFF, it simply reads the current trace level.
+**
+** Returns          the new (current) trace level
+**
+*******************************************************************************/
+extern UINT8 PAN_SetTraceLevel (UINT8 new_level);
+
+/*******************************************************************************
+**
+** Function         PAN_Init
+**
+** Description      This function initializes the PAN unit. It should be called
+**                  before accessing any other APIs to initialize the control
+**                  block.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void PAN_Init (void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif  /* PAN_API_H */
diff --git a/rtkbt/code/bt/stack/include/port_api.h b/rtkbt/code/bt/stack/include/port_api.h
new file mode 100755
index 0000000..f24887b
--- /dev/null
+++ b/rtkbt/code/bt/stack/include/port_api.h
@@ -0,0 +1,659 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  this file contains the PORT API definitions
+ *
+ ******************************************************************************/
+#ifndef PORT_API_H
+#define PORT_API_H
+
+#include "bt_target.h"
+
+/*****************************************************************************
+**  Constants and Types
+*****************************************************************************/
+
+/*
+** Define port settings structure send from the application in the
+** set settings request, or to the application in the set settings indication.
+*/
+typedef struct
+{
+
+#define PORT_BAUD_RATE_2400       0x00
+#define PORT_BAUD_RATE_4800       0x01
+#define PORT_BAUD_RATE_7200       0x02
+#define PORT_BAUD_RATE_9600       0x03
+#define PORT_BAUD_RATE_19200      0x04
+#define PORT_BAUD_RATE_38400      0x05
+#define PORT_BAUD_RATE_57600      0x06
+#define PORT_BAUD_RATE_115200     0x07
+#define PORT_BAUD_RATE_230400     0x08
+
+    UINT8  baud_rate;
+
+#define PORT_5_BITS               0x00
+#define PORT_6_BITS               0x01
+#define PORT_7_BITS               0x02
+#define PORT_8_BITS               0x03
+
+    UINT8  byte_size;
+
+#define PORT_ONESTOPBIT           0x00
+#define PORT_ONE5STOPBITS         0x01
+    UINT8   stop_bits;
+
+#define PORT_PARITY_NO            0x00
+#define PORT_PARITY_YES           0x01
+    UINT8   parity;
+
+#define PORT_ODD_PARITY           0x00
+#define PORT_EVEN_PARITY          0x01
+#define PORT_MARK_PARITY          0x02
+#define PORT_SPACE_PARITY         0x03
+
+    UINT8   parity_type;
+
+#define PORT_FC_OFF               0x00
+#define PORT_FC_XONXOFF_ON_INPUT  0x01
+#define PORT_FC_XONXOFF_ON_OUTPUT 0x02
+#define PORT_FC_CTS_ON_INPUT      0x04
+#define PORT_FC_CTS_ON_OUTPUT     0x08
+#define PORT_FC_DSR_ON_INPUT      0x10
+#define PORT_FC_DSR_ON_OUTPUT     0x20
+
+    UINT8 fc_type;
+
+    UINT8 rx_char1;
+
+#define PORT_XON_DC1              0x11
+    UINT8 xon_char;
+
+#define PORT_XOFF_DC3             0x13
+    UINT8 xoff_char;
+
+} tPORT_STATE;
+
+
+/*
+** Define the callback function prototypes.  Parameters are specific
+** to each event and are described bellow
+*/
+typedef int  (tPORT_DATA_CALLBACK) (UINT16 port_handle, void *p_data, UINT16 len);
+
+#define DATA_CO_CALLBACK_TYPE_INCOMING          1
+#define DATA_CO_CALLBACK_TYPE_OUTGOING_SIZE     2
+#define DATA_CO_CALLBACK_TYPE_OUTGOING          3
+typedef int  (tPORT_DATA_CO_CALLBACK) (UINT16 port_handle, UINT8* p_buf, UINT16 len, int type);
+
+typedef void (tPORT_CALLBACK) (UINT32 code, UINT16 port_handle);
+
+/*
+** Define events that registered application can receive in the callback
+*/
+
+#define PORT_EV_RXCHAR  0x00000001   /* Any Character received */
+#define PORT_EV_RXFLAG  0x00000002   /* Received certain character */
+#define PORT_EV_TXEMPTY 0x00000004   /* Transmitt Queue Empty */
+#define PORT_EV_CTS     0x00000008   /* CTS changed state */
+#define PORT_EV_DSR     0x00000010   /* DSR changed state */
+#define PORT_EV_RLSD    0x00000020   /* RLSD changed state */
+#define PORT_EV_BREAK   0x00000040   /* BREAK received */
+#define PORT_EV_ERR     0x00000080   /* Line status error occurred */
+#define PORT_EV_RING    0x00000100   /* Ring signal detected */
+#define PORT_EV_CTSS    0x00000400   /* CTS state */
+#define PORT_EV_DSRS    0x00000800   /* DSR state */
+#define PORT_EV_RLSDS   0x00001000   /* RLSD state */
+#define PORT_EV_OVERRUN 0x00002000   /* receiver buffer overrun */
+#define PORT_EV_TXCHAR  0x00004000   /* Any character transmitted */
+
+#define PORT_EV_CONNECTED    0x00000200  /* RFCOMM connection established */
+#define PORT_EV_CONNECT_ERR  0x00008000  /* Was not able to establish connection */
+                                     /* or disconnected */
+#define PORT_EV_FC      0x00010000   /* data flow enabled flag changed by remote */
+#define PORT_EV_FCS     0x00020000   /* data flow enable status true = enabled */
+
+/*
+** To register for events application should provide bitmask with
+** corresponding bit set
+*/
+
+#define PORT_MASK_ALL             (PORT_EV_RXCHAR | PORT_EV_TXEMPTY | PORT_EV_CTS | \
+                                   PORT_EV_DSR | PORT_EV_RLSD | PORT_EV_BREAK | \
+                                   PORT_EV_ERR | PORT_EV_RING | PORT_EV_CONNECT_ERR | \
+                                   PORT_EV_DSRS | PORT_EV_CTSS | PORT_EV_RLSDS | \
+                                   PORT_EV_RXFLAG | PORT_EV_TXCHAR | PORT_EV_OVERRUN | \
+                                   PORT_EV_FC | PORT_EV_FCS | PORT_EV_CONNECTED)
+
+
+/*
+** Define port result codes
+*/
+#define PORT_SUCCESS                0
+
+#define PORT_ERR_BASE               0
+
+#define PORT_UNKNOWN_ERROR          (PORT_ERR_BASE + 1)
+#define PORT_ALREADY_OPENED         (PORT_ERR_BASE + 2)
+#define PORT_CMD_PENDING            (PORT_ERR_BASE + 3)
+#define PORT_APP_NOT_REGISTERED     (PORT_ERR_BASE + 4)
+#define PORT_NO_MEM                 (PORT_ERR_BASE + 5)
+#define PORT_NO_RESOURCES           (PORT_ERR_BASE + 6)
+#define PORT_BAD_BD_ADDR            (PORT_ERR_BASE + 7)
+#define PORT_BAD_HANDLE             (PORT_ERR_BASE + 9)
+#define PORT_NOT_OPENED             (PORT_ERR_BASE + 10)
+#define PORT_LINE_ERR               (PORT_ERR_BASE + 11)
+#define PORT_START_FAILED           (PORT_ERR_BASE + 12)
+#define PORT_PAR_NEG_FAILED         (PORT_ERR_BASE + 13)
+#define PORT_PORT_NEG_FAILED        (PORT_ERR_BASE + 14)
+#define PORT_SEC_FAILED             (PORT_ERR_BASE + 15)
+#define PORT_PEER_CONNECTION_FAILED (PORT_ERR_BASE + 16)
+#define PORT_PEER_FAILED            (PORT_ERR_BASE + 17)
+#define PORT_PEER_TIMEOUT           (PORT_ERR_BASE + 18)
+#define PORT_CLOSED                 (PORT_ERR_BASE + 19)
+#define PORT_TX_FULL                (PORT_ERR_BASE + 20)
+#define PORT_LOCAL_CLOSED           (PORT_ERR_BASE + 21)
+#define PORT_LOCAL_TIMEOUT          (PORT_ERR_BASE + 22)
+#define PORT_TX_QUEUE_DISABLED      (PORT_ERR_BASE + 23)
+#define PORT_PAGE_TIMEOUT           (PORT_ERR_BASE + 24)
+#define PORT_INVALID_SCN            (PORT_ERR_BASE + 25)
+
+#define PORT_ERR_MAX                (PORT_ERR_BASE + 26)
+
+/*****************************************************************************
+**  External Function Declarations
+*****************************************************************************/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+/*******************************************************************************
+**
+** Function         RFCOMM_CreateConnection
+**
+** Description      RFCOMM_CreateConnection function is used from the application
+**                  to establish serial port connection to the peer device,
+**                  or allow RFCOMM to accept a connection from the peer
+**                  application.
+**
+** Parameters:      scn          - Service Channel Number as registered with
+**                                 the SDP (server) or obtained using SDP from
+**                                 the peer device (client).
+**                  is_server    - TRUE if requesting application is a server
+**                  mtu          - Maximum frame size the application can accept
+**                  bd_addr      - BD_ADDR of the peer (client)
+**                  mask         - specifies events to be enabled.  A value
+**                                 of zero disables all events.
+**                  p_handle     - OUT pointer to the handle.
+**                  p_mgmt_cb    - pointer to callback function to receive
+**                                 connection up/down events.
+** Notes:
+**
+** Server can call this function with the same scn parameter multiple times if
+** it is ready to accept multiple simulteneous connections.
+**
+** DLCI for the connection is (scn * 2 + 1) if client originates connection on
+** existing none initiator multiplexer channel.  Otherwise it is (scn * 2).
+** For the server DLCI can be changed later if client will be calling it using
+** (scn * 2 + 1) dlci.
+**
+*******************************************************************************/
+extern int RFCOMM_CreateConnection (UINT16 uuid, UINT8 scn,
+                                            BOOLEAN is_server, UINT16 mtu,
+                                            BD_ADDR bd_addr, UINT16 *p_handle,
+                                            tPORT_CALLBACK *p_mgmt_cb);
+
+
+/*******************************************************************************
+**
+** Function         RFCOMM_RemoveConnection
+**
+** Description      This function is called to close the specified connection.
+**
+** Parameters:      handle     - Handle of the port returned in the Open
+**
+*******************************************************************************/
+extern int RFCOMM_RemoveConnection (UINT16 handle);
+
+
+/*******************************************************************************
+**
+** Function         RFCOMM_RemoveServer
+**
+** Description      This function is called to close the server port.
+**
+** Parameters:      handle     - Handle returned in the RFCOMM_CreateConnection
+**
+*******************************************************************************/
+extern int RFCOMM_RemoveServer (UINT16 handle);
+
+
+/*******************************************************************************
+**
+** Function         PORT_SetEventCallback
+**
+** Description      Set event callback the specified connection.
+**
+** Parameters:      handle       - Handle of the port returned in the Open
+**                  p_callback   - address of the callback function which should
+**                                 be called from the RFCOMM when an event
+**                                 specified in the mask occurs.
+**
+*******************************************************************************/
+extern int PORT_SetEventCallback (UINT16 port_handle,
+                                  tPORT_CALLBACK *p_port_cb);
+
+/*******************************************************************************
+**
+** Function         PORT_ClearKeepHandleFlag
+**
+** Description      This function is called to clear the keep handle flag
+**                  which will cause not to keep the port handle open when closed
+** Parameters:      handle     - Handle returned in the RFCOMM_CreateConnection
+**
+*******************************************************************************/
+int PORT_ClearKeepHandleFlag (UINT16 port_handle);
+
+/*******************************************************************************
+**
+** Function         PORT_SetEventCallback
+**
+** Description      Set event data callback the specified connection.
+**
+** Parameters:      handle       - Handle of the port returned in the Open
+**                  p_callback   - address of the callback function which should
+**                                 be called from the RFCOMM when a data
+**                                 packet is received.
+**
+*******************************************************************************/
+extern int PORT_SetDataCallback (UINT16 port_handle,
+                                 tPORT_DATA_CALLBACK *p_cb);
+
+extern int PORT_SetDataCOCallback (UINT16 port_handle, tPORT_DATA_CO_CALLBACK *p_port_cb);
+/*******************************************************************************
+**
+** Function         PORT_SetEventMask
+**
+** Description      This function is called to close the specified connection.
+**
+** Parameters:      handle - Handle of the port returned in the Open
+**                  mask   - specifies events to be enabled.  A value
+**                           of zero disables all events.
+**
+*******************************************************************************/
+extern int PORT_SetEventMask (UINT16 port_handle, UINT32 mask);
+
+
+/*******************************************************************************
+**
+** Function         PORT_CheckConnection
+**
+** Description      This function returns PORT_SUCCESS if connection referenced
+**                  by handle is up and running
+**
+** Parameters:      handle     - Handle of the port returned in the Open
+**                  bd_addr    - OUT bd_addr of the peer
+**                  p_lcid     - OUT L2CAP's LCID
+**
+*******************************************************************************/
+extern int PORT_CheckConnection (UINT16 handle, BD_ADDR bd_addr,
+                                 UINT16 *p_lcid);
+
+/*******************************************************************************
+**
+** Function         PORT_IsOpening
+**
+** Description      This function returns TRUE if there is any RFCOMM connection
+**                  opening in process.
+**
+** Parameters:      TRUE if any connection opening is found
+**                  bd_addr    - bd_addr of the peer
+**
+*******************************************************************************/
+extern BOOLEAN PORT_IsOpening (BD_ADDR bd_addr);
+
+/*******************************************************************************
+**
+** Function         PORT_SetState
+**
+** Description      This function configures connection according to the
+**                  specifications in the tPORT_STATE structure.
+**
+** Parameters:      handle     - Handle returned in the RFCOMM_CreateConnection
+**                  p_settings - Pointer to a tPORT_STATE structure containing
+**                               configuration information for the connection.
+**
+*******************************************************************************/
+extern int PORT_SetState (UINT16 handle, tPORT_STATE *p_settings);
+
+/*******************************************************************************
+**
+** Function         PORT_GetRxQueueCnt
+**
+** Description      This function return number of buffers on the rx queue.
+**
+** Parameters:      handle     - Handle returned in the RFCOMM_CreateConnection
+**                  p_rx_queue_count - Pointer to return queue count in.
+**
+*******************************************************************************/
+extern int PORT_GetRxQueueCnt (UINT16 handle, UINT16 *p_rx_queue_count);
+
+/*******************************************************************************
+**
+** Function         PORT_GetState
+**
+** Description      This function is called to fill tPORT_STATE structure
+**                  with the current control settings for the port
+**
+** Parameters:      handle     - Handle returned in the RFCOMM_CreateConnection
+**                  p_settings - Pointer to a tPORT_STATE structure in which
+**                               configuration information is returned.
+**
+*******************************************************************************/
+extern int PORT_GetState (UINT16 handle, tPORT_STATE *p_settings);
+
+
+/*******************************************************************************
+**
+** Function         PORT_Control
+**
+** Description      This function directs a specified connection to pass control
+**                  control information to the peer device.
+**
+** Parameters:      handle     - Handle returned in the RFCOMM_CreateConnection
+**                  signal     - specify the function to be passed
+**
+*******************************************************************************/
+#define PORT_SET_DTRDSR         0x01
+#define PORT_CLR_DTRDSR         0x02
+#define PORT_SET_CTSRTS         0x03
+#define PORT_CLR_CTSRTS         0x04
+#define PORT_SET_RI             0x05        /* DCE only */
+#define PORT_CLR_RI             0x06        /* DCE only */
+#define PORT_SET_DCD            0x07        /* DCE only */
+#define PORT_CLR_DCD            0x08        /* DCE only */
+#define PORT_BREAK              0x09        /* Break event */
+
+extern int PORT_Control (UINT16 handle, UINT8 signal);
+
+
+/*******************************************************************************
+**
+** Function         PORT_FlowControl
+**
+** Description      This function directs a specified connection to pass
+**                  flow control message to the peer device.  Enable flag passed
+**                  shows if port can accept more data.
+**
+** Parameters:      handle     - Handle returned in the RFCOMM_CreateConnection
+**                  enable     - enables data flow
+**
+*******************************************************************************/
+extern int PORT_FlowControl (UINT16 handle, BOOLEAN enable);
+
+
+/*******************************************************************************
+**
+** Function         PORT_GetModemStatus
+**
+** Description      This function retrieves modem control signals.  Normally
+**                  application will call this function after a callback
+**                  function is called with notification that one of signals
+**                  has been changed.
+**
+** Parameters:      handle     - Handle returned in the RFCOMM_CreateConnection
+**                               callback.
+**                  p_signal   - specify the pointer to control signals info
+**
+*******************************************************************************/
+#define PORT_DTRDSR_ON          0x01
+#define PORT_CTSRTS_ON          0x02
+#define PORT_RING_ON            0x04
+#define PORT_DCD_ON             0x08
+
+/*
+** Define default initial local modem signals state set after connection established
+*/
+#define PORT_OBEX_DEFAULT_SIGNAL_STATE  (PORT_DTRDSR_ON | PORT_CTSRTS_ON | PORT_DCD_ON)
+#define PORT_SPP_DEFAULT_SIGNAL_STATE   (PORT_DTRDSR_ON | PORT_CTSRTS_ON | PORT_DCD_ON)
+#define PORT_PPP_DEFAULT_SIGNAL_STATE   (PORT_DTRDSR_ON | PORT_CTSRTS_ON | PORT_DCD_ON)
+#define PORT_DUN_DEFAULT_SIGNAL_STATE   (PORT_DTRDSR_ON | PORT_CTSRTS_ON)
+
+extern int PORT_GetModemStatus (UINT16 handle, UINT8 *p_control_signal);
+
+
+/*******************************************************************************
+**
+** Function         PORT_ClearError
+**
+** Description      This function retreives information about a communications
+**                  error and reports current status of a connection.  The
+**                  function should be called when an error occures to clear
+**                  the connection error flag and to enable additional read
+**                  and write operations.
+**
+** Parameters:      handle     - Handle returned in the RFCOMM_CreateConnection
+**                  p_errors   - pointer of the variable to receive error codes
+**                  p_status   - pointer to the tPORT_STATUS structur to receive
+**                               connection status
+**
+*******************************************************************************/
+
+#define PORT_ERR_BREAK      0x01    /* Break condition occured on the peer device */
+#define PORT_ERR_OVERRUN    0x02    /* Overrun is reported by peer device */
+#define PORT_ERR_FRAME      0x04    /* Framing error reported by peer device */
+#define PORT_ERR_RXOVER     0x08    /* Input queue overflow occured */
+#define PORT_ERR_TXFULL     0x10    /* Output queue overflow occured */
+
+typedef struct
+{
+#define PORT_FLAG_CTS_HOLD  0x01    /* Tx is waiting for CTS signal */
+#define PORT_FLAG_DSR_HOLD  0x02    /* Tx is waiting for DSR signal */
+#define PORT_FLAG_RLSD_HOLD 0x04    /* Tx is waiting for RLSD signal */
+
+    UINT16  flags;
+    UINT16  in_queue_size;          /* Number of bytes in the input queue */
+    UINT16  out_queue_size;         /* Number of bytes in the output queue */
+    UINT16  mtu_size;               /* peer MTU size */
+} tPORT_STATUS;
+
+
+extern int PORT_ClearError (UINT16 handle, UINT16 *p_errors,
+                            tPORT_STATUS *p_status);
+
+
+/*******************************************************************************
+**
+** Function         PORT_SendError
+**
+** Description      This function send a communications error to the peer device
+**
+** Parameters:      handle     - Handle returned in the RFCOMM_CreateConnection
+**                  errors     - receive error codes
+**
+*******************************************************************************/
+extern int PORT_SendError (UINT16 handle, UINT8 errors);
+
+
+/*******************************************************************************
+**
+** Function         PORT_GetQueueStatus
+**
+** Description      This function reports current status of a connection.
+**
+** Parameters:      handle     - Handle returned in the RFCOMM_CreateConnection
+**                  p_status   - pointer to the tPORT_STATUS structur to receive
+**                               connection status
+**
+*******************************************************************************/
+extern int PORT_GetQueueStatus (UINT16 handle, tPORT_STATUS *p_status);
+
+
+/*******************************************************************************
+**
+** Function         PORT_Purge
+**
+** Description      This function discards all the data from the output or
+**                  input queues of the specified connection.
+**
+** Parameters:      handle     - Handle returned in the RFCOMM_CreateConnection
+**                  purge_flags - specify the action to take.
+**
+*******************************************************************************/
+#define PORT_PURGE_TXCLEAR  0x01
+#define PORT_PURGE_RXCLEAR  0x02
+
+extern int PORT_Purge (UINT16 handle, UINT8 purge_flags);
+
+
+/*******************************************************************************
+**
+** Function         PORT_Read
+**
+** Description      This function returns the pointer to the buffer received
+**                  from the peer device.  Normally application will call this
+**                  function after receiving PORT_EVT_RXCHAR event.
+**                  Application calling this function is responsible to free
+**                  buffer returned.
+**
+** Parameters:      handle     - Handle returned in the RFCOMM_CreateConnection
+**                                callback.
+**                  pp_buf      - pointer to address of buffer with data,
+**
+*******************************************************************************/
+extern int PORT_Read (UINT16 handle, BT_HDR **pp_buf);
+
+
+/*******************************************************************************
+**
+** Function         PORT_ReadData
+**
+** Description      Normally application will call this function after receiving
+**                  PORT_EVT_RXCHAR event.
+**
+** Parameters:      handle     - Handle returned in the RFCOMM_CreateConnection
+**                                callback.
+**                  p_data      - Data area
+**                  max_len     - Byte count requested
+**                  p_len       - Byte count received
+**
+*******************************************************************************/
+extern int PORT_ReadData (UINT16 handle, char *p_data, UINT16 max_len,
+                          UINT16 *p_len);
+
+
+/*******************************************************************************
+**
+** Function         PORT_Write
+**
+** Description      This function to send BT buffer to the peer device.
+**                  Application should not free the buffer.
+**
+** Parameters:      handle     - Handle returned in the RFCOMM_CreateConnection
+**                  p_buf       - pointer to the buffer with data,
+**
+*******************************************************************************/
+extern int PORT_Write (UINT16 handle, BT_HDR *p_buf);
+
+
+/*******************************************************************************
+**
+** Function         PORT_WriteData
+**
+** Description      This function is called from the legacy application to
+**                  send data.
+**
+** Parameters:      handle     - Handle returned in the RFCOMM_CreateConnection
+**                  p_data      - Data area
+**                  max_len     - Byte count to write
+**                  p_len       - Bytes written
+**
+*******************************************************************************/
+extern int PORT_WriteData (UINT16 handle, char *p_data, UINT16 max_len,
+                           UINT16 *p_len);
+
+/*******************************************************************************
+**
+** Function         PORT_WriteDataCO
+**
+** Description      Normally not GKI aware application will call this function
+**                  to send data to the port by callout functions.
+**
+** Parameters:      handle     - Handle returned in the RFCOMM_CreateConnection
+**
+*******************************************************************************/
+extern int PORT_WriteDataCO (UINT16 handle, int* p_len);
+
+/*******************************************************************************
+**
+** Function         PORT_Test
+**
+** Description      Application can call this function to send RFCOMM Test frame
+**
+** Parameters:      handle      - Handle returned in the RFCOMM_CreateConnection
+**                  p_data      - Data area
+**                  max_len     - Byte count requested
+**
+*******************************************************************************/
+extern int PORT_Test (UINT16 handle, UINT8 *p_data, UINT16 len);
+
+
+/*******************************************************************************
+**
+** Function         RFCOMM_Init
+**
+** Description      This function is called to initialize RFCOMM layer
+**
+*******************************************************************************/
+extern void RFCOMM_Init (void);
+
+
+/*******************************************************************************
+**
+** Function         PORT_SetTraceLevel
+**
+** Description      This function sets the trace level for RFCOMM. If called with
+**                  a value of 0xFF, it simply reads the current trace level.
+**
+** Returns          the new (current) trace level
+**
+*******************************************************************************/
+extern UINT8 PORT_SetTraceLevel (UINT8 new_level);
+
+
+/*******************************************************************************
+**
+** Function         PORT_GetResultString
+**
+** Description      This function returns the human-readable string for a given
+**                  result code.
+**
+** Returns          a pointer to the human-readable string for the given
+**                  result. Note that the string returned must not be freed.
+**
+*******************************************************************************/
+extern const char *PORT_GetResultString (const uint8_t result_code);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif  /* PORT_API_H */
diff --git a/rtkbt/code/bt/stack/include/port_ext.h b/rtkbt/code/bt/stack/include/port_ext.h
new file mode 100755
index 0000000..b940e4e
--- /dev/null
+++ b/rtkbt/code/bt/stack/include/port_ext.h
@@ -0,0 +1,32 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains external definitions of Port Emulation entity unit
+ *
+ ******************************************************************************/
+
+#ifndef PORTEXT_H
+#define PORTEXT_H
+
+#include "bt_common.h"
+
+extern void rfcomm_port_timer_timeout(void *data);
+extern void rfcomm_mcb_timer_timeout(void *data);
+#endif
diff --git a/rtkbt/code/bt/stack/include/profiles_api.h b/rtkbt/code/bt/stack/include/profiles_api.h
new file mode 100755
index 0000000..eee0dd8
--- /dev/null
+++ b/rtkbt/code/bt/stack/include/profiles_api.h
@@ -0,0 +1,71 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2013 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#ifndef PROFILES_API_H
+#define PROFILES_API_H
+
+#include "bt_target.h"
+#include "btm_api.h"
+
+/*****************************************************************************
+**  Constants
+*****************************************************************************/
+#define BT_PASS         0   /* Used for general successful function returns */
+
+/*** Port entity passes back 8 bit errors; will use upper byte offset ***/
+#define PORT_ERR_GRP    0x0000          /* base offset for port entity */
+#define GAP_ERR_GRP     0x0100          /* base offset for GAP profile */
+#define SPP_ERR_GRP     0x0200          /* base offset for serial port profile */
+#define HCRP_ERR_GRP    0x0300          /* base offset for HCRP */
+#define HCRPM_ERR_GRP   0x0400          /* base offset for HCRPM */
+
+/* #define HSP2_ERR_GRP 0x0F00 */
+
+/* security level definitions (tBT_SECURITY) */
+#define BT_USE_DEF_SECURITY         0
+#define BT_SEC_MODE_NONE            BTM_SEC_MODE_NONE
+#define BT_SEC_MODE_SERVICE         BTM_SEC_MODE_SERVICE
+#define BT_SEC_MODE_LINK            BTM_SEC_MODE_LINK
+
+/* security mask definitions (tBT_SECURITY) */
+/* The following definitions are OR'd together to form the security requirements */
+#define BT_SEC_IN_AUTHORIZE         BTM_SEC_IN_AUTHORIZE         /* Inbound call requires authorization */
+#define BT_SEC_IN_AUTHENTICATE      BTM_SEC_IN_AUTHENTICATE      /* Inbound call requires authentication */
+#define BT_SEC_IN_ENCRYPT           BTM_SEC_IN_ENCRYPT           /* Inbound call requires encryption */
+#define BT_SEC_OUT_AUTHORIZE        BTM_SEC_OUT_AUTHORIZE        /* Outbound call requires authorization */
+#define BT_SEC_OUT_AUTHENTICATE     BTM_SEC_OUT_AUTHENTICATE     /* Outbound call requires authentication */
+#define BT_SEC_OUT_ENCRYPT          BTM_SEC_OUT_ENCRYPT          /* Outbound call requires encryption */
+
+
+/*****************************************************************************
+**  Type Definitions
+*****************************************************************************/
+
+/*
+** Security Definitions
+**      This following definitions are used to indicate the security
+**      requirements for a service.
+*/
+typedef struct
+{
+    UINT8   level;
+    UINT8   mask;
+} tBT_SECURITY;
+
+#endif  /* PROFILES_API_H */
+
diff --git a/rtkbt/code/bt/stack/include/rfcdefs.h b/rtkbt/code/bt/stack/include/rfcdefs.h
new file mode 100755
index 0000000..dcc37bc
--- /dev/null
+++ b/rtkbt/code/bt/stack/include/rfcdefs.h
@@ -0,0 +1,248 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/****************************************************************************
+ *
+ *  This file contains definitions for the RFCOMM protocol
+ *
+ ****************************************************************************/
+
+#ifndef RFCDEFS_H
+#define RFCDEFS_H
+
+#define PORT_MAX_RFC_PORTS              31
+
+/*
+**  If nothing is negotiated MTU should be 127
+*/
+#define RFCOMM_DEFAULT_MTU              127
+
+/*
+** Define used by RFCOMM TS frame types
+*/
+#define RFCOMM_SABME                    0x2F
+#define RFCOMM_UA                       0x63
+#define RFCOMM_DM                       0x0F
+#define RFCOMM_DISC                     0x43
+#define RFCOMM_UIH                      0xEF
+
+/*
+** Defenitions for the TS control frames
+*/
+#define RFCOMM_CTRL_FRAME_LEN           3
+#define RFCOMM_MIN_OFFSET               5 /* ctrl 2 , len 1 or 2 bytes, credit 1 byte */
+#define RFCOMM_DATA_OVERHEAD            (RFCOMM_MIN_OFFSET + 1)  /* add 1 for checksum */
+
+#define RFCOMM_EA                       1
+#define RFCOMM_EA_MASK                  0x01
+#define RFCOMM_CR_MASK                  0x02
+#define RFCOMM_SHIFT_CR                 1
+#define RFCOMM_SHIFT_DLCI               2
+#define RFCOMM_SHIFT_DLCI2              6
+#define RFCOMM_PF                       0x10
+#define RFCOMM_PF_MASK                  0x10
+#define RFCOMM_PF_OFFSET                4
+#define RFCOMM_SHIFT_LENGTH1            1
+#define RFCOMM_SHIFT_LENGTH2            7
+#define RFCOMM_SHIFT_MX_CTRL_TYPE       2
+
+#define RFCOMM_INITIATOR_CMD            1
+#define RFCOMM_INITIATOR_RSP            0
+#define RFCOMM_RESPONDER_CMD            0
+#define RFCOMM_RESPONDER_RSP            1
+
+#define RFCOMM_PARSE_CTRL_FIELD(ea, cr, dlci, p_data)       \
+{                                                           \
+    ea = *p_data & RFCOMM_EA;                               \
+    cr = (*p_data & RFCOMM_CR_MASK) >> RFCOMM_SHIFT_CR;     \
+    dlci = *p_data++ >> RFCOMM_SHIFT_DLCI;                  \
+    if (!ea) dlci += *p_data++ << RFCOMM_SHIFT_DLCI2;       \
+}
+
+#define RFCOMM_FORMAT_CTRL_FIELD(p_data, ea, cr, dlci)      \
+    *p_data++ = ea | cr | (dlci << RFCOMM_SHIFT_DLCI)
+
+#define RFCOMM_PARSE_TYPE_FIELD(type, pf, p_data)           \
+{                                                           \
+    type = *p_data & ~RFCOMM_PF_MASK;                       \
+    pf   = (*p_data++ & RFCOMM_PF_MASK) >> RFCOMM_PF_OFFSET;\
+}
+
+#define RFCOMM_FORMAT_TYPE_FIELD(p_data, type, pf)          \
+    *p_data++ = (type | (pf << RFCOMM_PF_OFFSET))           \
+{                                                           \
+    type = *p_data & ~RFCOMM_PF_MASK;                       \
+    pf   = (*p_data++ & RFCOMM_PF_MASK) >> RFCOMM_PF_OFFSET;\
+}
+
+#define RFCOMM_PARSE_LEN_FIELD(ea, length, p_data)          \
+{                                                           \
+    ea = (*p_data & RFCOMM_EA);                             \
+    length = (*p_data++ >> RFCOMM_SHIFT_LENGTH1);           \
+    if (!ea) length += (*p_data++ << RFCOMM_SHIFT_LENGTH2); \
+}
+
+#define RFCOMM_FRAME_IS_CMD(initiator, cr)                  \
+    (( (initiator) && !(cr)) || (!(initiator) &&  (cr)))
+
+#define RFCOMM_FRAME_IS_RSP(initiator, cr)                  \
+    (( (initiator) &&  (cr)) || (!(initiator) && !(cr)))
+
+#define RFCOMM_CR(initiator, is_command)                    \
+    (( ( (initiator) &&  (is_command))                      \
+    || (!(initiator) && !(is_command))) << 1)
+
+#define RFCOMM_I_CR(is_command) ((is_command) ? 0x02 : 0x00)
+
+#define RFCOMM_MAX_DLCI             61
+
+#define RFCOMM_VALID_DLCI(dlci)                             \
+    (((dlci) == 0) || (((dlci) >= 2) && ((dlci) <= RFCOMM_MAX_DLCI)))
+
+
+/* Port Negotiation (PN) */
+#define RFCOMM_PN_DLCI_MASK         0x3F
+
+#define RFCOMM_PN_FRAM_TYPE_UIH     0x00
+#define RFCOMM_PN_FRAME_TYPE_MASK   0x0F
+
+#define RFCOMM_PN_CONV_LAYER_MASK   0xF0
+#define RFCOMM_PN_CONV_LAYER_TYPE_1 0
+#define RFCOMM_PN_CONV_LAYER_CBFC_I 0xF0
+#define RFCOMM_PN_CONV_LAYER_CBFC_R 0xE0
+
+#define RFCOMM_PN_PRIORITY_MASK     0x3F
+#define RFCOMM_PN_PRIORITY_0        0
+
+#define RFCOMM_PN_K_MASK            0x07
+
+#define RFCOMM_T1_DSEC              0 /* None negotiable in RFCOMM */
+#define RFCOMM_N2                   0 /* Number of retransmissions */
+#define RFCOMM_K                    0 /* Window size */
+#define RFCOMM_K_MAX                7 /* Max value of K for credit based flow control */
+
+#define RFCOMM_MSC_FC               0x02          /* Flow control*/
+#define RFCOMM_MSC_RTC              0x04          /* Ready to communicate*/
+#define RFCOMM_MSC_RTR              0x08          /* Ready to receive*/
+#define RFCOMM_MSC_IC               0x40          /* Incomming call indicator*/
+#define RFCOMM_MSC_DV               0x80          /* Data Valid*/
+
+#define RFCOMM_MSC_SHIFT_BREAK          4
+#define RFCOMM_MSC_BREAK_MASK           0xF0
+#define RFCOMM_MSC_BREAK_PRESENT_MASK   0x02
+
+#define RFCOMM_BAUD_RATE_2400           0x00
+#define RFCOMM_BAUD_RATE_4800           0x01
+#define RFCOMM_BAUD_RATE_7200           0x02
+#define RFCOMM_BAUD_RATE_9600           0x03
+#define RFCOMM_BAUD_RATE_19200          0x04
+#define RFCOMM_BAUD_RATE_38400          0x05
+#define RFCOMM_BAUD_RATE_57600          0x06
+#define RFCOMM_BAUD_RATE_115200         0x07
+#define RFCOMM_BAUD_RATE_230400         0x08
+
+#define RFCOMM_5_BITS                   0x00
+#define RFCOMM_6_BITS                   0x01
+#define RFCOMM_7_BITS                   0x02
+#define RFCOMM_8_BITS                   0x03
+
+#define RFCOMM_RPN_BITS_MASK            0x03
+#define RFCOMM_RPN_BITS_SHIFT           0
+
+#define RFCOMM_ONESTOPBIT               0x00
+#define RFCOMM_ONE5STOPBITS             0x01
+
+#define RFCOMM_RPN_STOP_BITS_MASK       0x01
+#define RFCOMM_RPN_STOP_BITS_SHIFT      2
+
+#define RFCOMM_PARITY_NO                0x00
+#define RFCOMM_PARITY_YES               0x01
+#define RFCOMM_RPN_PARITY_MASK          0x01
+#define RFCOMM_RPN_PARITY_SHIFT         3
+
+#define RFCOMM_ODD_PARITY               0x00
+#define RFCOMM_EVEN_PARITY              0x01
+#define RFCOMM_MARK_PARITY              0x02
+#define RFCOMM_SPACE_PARITY             0x03
+
+#define RFCOMM_RPN_PARITY_TYPE_MASK     0x03
+#define RFCOMM_RPN_PARITY_TYPE_SHIFT    4
+
+#define RFCOMM_FC_OFF                   0x00
+#define RFCOMM_FC_XONXOFF_ON_INPUT      0x01
+#define RFCOMM_FC_XONXOFF_ON_OUTPUT     0x02
+#define RFCOMM_FC_RTR_ON_INPUT          0x04
+#define RFCOMM_FC_RTR_ON_OUTPUT         0x08
+#define RFCOMM_FC_RTC_ON_INPUT          0x10
+#define RFCOMM_FC_RTC_ON_OUTPUT         0x20
+#define RFCOMM_FC_MASK                  0x3F
+
+#define RFCOMM_RPN_PM_BIT_RATE          0x0001
+#define RFCOMM_RPN_PM_DATA_BITS         0x0002
+#define RFCOMM_RPN_PM_STOP_BITS         0x0004
+#define RFCOMM_RPN_PM_PARITY            0x0008
+#define RFCOMM_RPN_PM_PARITY_TYPE       0x0010
+#define RFCOMM_RPN_PM_XON_CHAR          0x0020
+#define RFCOMM_RPN_PM_XOFF_CHAR         0x0040
+#define RFCOMM_RPN_PM_XONXOFF_ON_INPUT  0x0100
+#define RFCOMM_RPN_PM_XONXOFF_ON_OUTPUT 0x0200
+#define RFCOMM_RPN_PM_RTR_ON_INPUT      0x0400
+#define RFCOMM_RPN_PM_RTR_ON_OUTPUT     0x0800
+#define RFCOMM_RPN_PM_RTC_ON_INPUT      0x1000
+#define RFCOMM_RPN_PM_RTC_ON_OUTPUT     0x2000
+#define RFCOMM_RPN_PM_MASK              0x3F7F
+
+#define RFCOMM_RLS_ERROR                0x01
+#define RFCOMM_RLS_OVERRUN              0x02
+#define RFCOMM_RLS_PARITY               0x04
+#define RFCOMM_RLS_FRAMING              0x08
+
+/* Multiplexor channel uses DLCI 0 */
+#define RFCOMM_MX_DLCI                  0
+
+/*
+** Define RFCOMM Multiplexer message types
+*/
+#define RFCOMM_MX_PN                    0x80
+#define RFCOMM_MX_PN_LEN                8
+
+#define RFCOMM_MX_CLD                   0xC0
+#define RFCOMM_MX_CLD_LEN               0
+
+#define RFCOMM_MX_TEST                  0x20
+
+#define RFCOMM_MX_FCON                  0xA0
+#define RFCOMM_MX_FCON_LEN              0
+
+#define RFCOMM_MX_FCOFF                 0x60
+#define RFCOMM_MX_FCOFF_LEN             0
+
+#define RFCOMM_MX_MSC                   0xE0
+#define RFCOMM_MX_MSC_LEN_NO_BREAK      2
+#define RFCOMM_MX_MSC_LEN_WITH_BREAK    3
+
+#define RFCOMM_MX_NSC                   0x10
+#define RFCOMM_MX_NSC_LEN               1
+
+#define RFCOMM_MX_RPN                   0x90
+#define RFCOMM_MX_RPN_REQ_LEN           1
+#define RFCOMM_MX_RPN_LEN               8
+
+#define RFCOMM_MX_RLS                   0x50
+#define RFCOMM_MX_RLS_LEN               2
+#endif
diff --git a/rtkbt/code/bt/stack/include/sdp_api.h b/rtkbt/code/bt/stack/include/sdp_api.h
new file mode 100755
index 0000000..16f2dbc
--- /dev/null
+++ b/rtkbt/code/bt/stack/include/sdp_api.h
@@ -0,0 +1,679 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+#ifndef SDP_API_H
+#define SDP_API_H
+
+#include "bt_target.h"
+#include "sdpdefs.h"
+
+/*****************************************************************************
+**  Constants
+*****************************************************************************/
+
+/* Success code and error codes */
+#define  SDP_SUCCESS                        0x0000
+#define  SDP_INVALID_VERSION                0x0001
+#define  SDP_INVALID_SERV_REC_HDL           0x0002
+#define  SDP_INVALID_REQ_SYNTAX             0x0003
+#define  SDP_INVALID_PDU_SIZE               0x0004
+#define  SDP_INVALID_CONT_STATE             0x0005
+#define  SDP_NO_RESOURCES                   0x0006
+#define  SDP_DI_REG_FAILED                  0x0007
+#define  SDP_DI_DISC_FAILED                 0x0008
+#define  SDP_NO_DI_RECORD_FOUND             0x0009
+#define  SDP_ERR_ATTR_NOT_PRESENT           0x000A
+#define  SDP_ILLEGAL_PARAMETER              0x000B
+
+#define  SDP_NO_RECS_MATCH                  0xFFF0
+#define  SDP_CONN_FAILED                    0xFFF1
+#define  SDP_CFG_FAILED                     0xFFF2
+#define  SDP_GENERIC_ERROR                  0xFFF3
+#define  SDP_DB_FULL                        0xFFF4
+#define  SDP_INVALID_PDU                    0xFFF5
+#define  SDP_SECURITY_ERR                   0xFFF6
+#define  SDP_CONN_REJECTED                  0xFFF7
+#define  SDP_CANCEL                         0xFFF8
+
+/* Define the PSM that SDP uses */
+#define SDP_PSM     0x0001
+
+/* Legacy #define to avoid code changes - SDP UUID is same as BT UUID */
+#define tSDP_UUID   tBT_UUID
+
+/* Masks for attr_value field of tSDP_DISC_ATTR */
+#define SDP_DISC_ATTR_LEN_MASK          0x0FFF
+#define SDP_DISC_ATTR_TYPE(len_type)    (len_type >> 12)
+#define SDP_DISC_ATTR_LEN(len_type)     (len_type & SDP_DISC_ATTR_LEN_MASK)
+
+/* Maximum number of protocol list items (list_elem in tSDP_PROTOCOL_ELEM) */
+#define SDP_MAX_LIST_ELEMS      3
+
+
+/*****************************************************************************
+**  Type Definitions
+*****************************************************************************/
+
+/* Define a callback function for when discovery is complete. */
+typedef void (tSDP_DISC_CMPL_CB) (UINT16 result);
+typedef void (tSDP_DISC_CMPL_CB2) (UINT16 result, void* user_data);
+
+typedef struct
+{
+    BD_ADDR         peer_addr;
+    UINT16          peer_mtu;
+} tSDP_DR_OPEN;
+
+typedef struct
+{
+    UINT8           *p_data;
+    UINT16          data_len;
+} tSDP_DR_DATA;
+
+typedef union
+{
+    tSDP_DR_OPEN    open;
+    tSDP_DR_DATA    data;
+} tSDP_DATA;
+
+/* Define a callback function for when discovery result is received. */
+typedef void (tSDP_DISC_RES_CB) (UINT16 event, tSDP_DATA *p_data);
+
+/* Define a structure to hold the discovered service information. */
+typedef struct
+{
+    union
+    {
+        UINT8       u8;                         /* 8-bit integer            */
+        UINT16      u16;                        /* 16-bit integer           */
+        UINT32      u32;                        /* 32-bit integer           */
+        UINT8       array[4];                   /* Variable length field    */
+        struct t_sdp_disc_attr *p_sub_attr;     /* Addr of first sub-attr (list)*/
+    } v;
+
+} tSDP_DISC_ATVAL;
+
+typedef struct t_sdp_disc_attr
+{
+    struct t_sdp_disc_attr *p_next_attr;        /* Addr of next linked attr     */
+    UINT16                  attr_id;            /* Attribute ID                 */
+    UINT16                  attr_len_type;      /* Length and type fields       */
+    tSDP_DISC_ATVAL         attr_value;         /* Variable length entry data   */
+} tSDP_DISC_ATTR;
+
+typedef struct t_sdp_disc_rec
+{
+    tSDP_DISC_ATTR          *p_first_attr;      /* First attribute of record    */
+    struct t_sdp_disc_rec   *p_next_rec;        /* Addr of next linked record   */
+    UINT32                  time_read;          /* The time the record was read */
+    BD_ADDR                 remote_bd_addr;     /* Remote BD address            */
+} tSDP_DISC_REC;
+
+typedef struct
+{
+    UINT32          mem_size;                   /* Memory size of the DB        */
+    UINT32          mem_free;                   /* Memory still available       */
+    tSDP_DISC_REC   *p_first_rec;               /* Addr of first record in DB   */
+    UINT16          num_uuid_filters;           /* Number of UUIds to filter    */
+    tSDP_UUID       uuid_filters[SDP_MAX_UUID_FILTERS]; /* UUIDs to filter      */
+    UINT16          num_attr_filters;           /* Number of attribute filters  */
+    UINT16          attr_filters[SDP_MAX_ATTR_FILTERS]; /* Attributes to filter */
+    UINT8           *p_free_mem;                /* Pointer to free memory       */
+#if (SDP_RAW_DATA_INCLUDED == TRUE)
+    UINT8           *raw_data;                  /* Received record from server. allocated/released by client  */
+    UINT32          raw_size;                   /* size of raw_data */
+    UINT32          raw_used;                   /* length of raw_data used */
+#endif
+}tSDP_DISCOVERY_DB;
+
+/* This structure is used to add protocol lists and find protocol elements */
+typedef struct
+{
+    UINT16      protocol_uuid;
+    UINT16      num_params;
+    UINT16      params[SDP_MAX_PROTOCOL_PARAMS];
+} tSDP_PROTOCOL_ELEM;
+
+typedef struct
+{
+    UINT16              num_elems;
+    tSDP_PROTOCOL_ELEM  list_elem[SDP_MAX_LIST_ELEMS];
+} tSDP_PROTO_LIST_ELEM;
+
+/* Device Identification (DI) data structure
+*/
+/* Used to set the DI record */
+typedef struct t_sdp_di_record
+{
+    UINT16       vendor;
+    UINT16       vendor_id_source;
+    UINT16       product;
+    UINT16       version;
+    BOOLEAN      primary_record;
+    char         client_executable_url[SDP_MAX_ATTR_LEN];   /* optional */
+    char         service_description[SDP_MAX_ATTR_LEN];     /* optional */
+    char         documentation_url[SDP_MAX_ATTR_LEN];       /* optional */
+}tSDP_DI_RECORD;
+
+/* Used to get the DI record */
+typedef struct t_sdp_di_get_record
+{
+    UINT16          spec_id;
+    tSDP_DI_RECORD  rec;
+}tSDP_DI_GET_RECORD;
+
+/* API into the SDP layer for service discovery. */
+
+/*******************************************************************************
+**
+** Function         SDP_InitDiscoveryDb
+**
+** Description      This function is called to initialize a discovery database.
+**
+** Returns          TRUE if successful, FALSE if one or more parameters are bad
+**
+*******************************************************************************/
+BOOLEAN SDP_InitDiscoveryDb (tSDP_DISCOVERY_DB *p_db, UINT32 len,
+                                    UINT16 num_uuid,
+                                    tSDP_UUID *p_uuid_list,
+                                    UINT16 num_attr,
+                                    UINT16 *p_attr_list);
+
+/*******************************************************************************
+**
+** Function         SDP_CancelServiceSearch
+**
+** Description      This function cancels an active query to an SDP server.
+**
+** Returns          TRUE if discovery cancelled, FALSE if a matching activity is not found.
+**
+*******************************************************************************/
+BOOLEAN SDP_CancelServiceSearch (tSDP_DISCOVERY_DB *p_db);
+
+/*******************************************************************************
+**
+** Function         SDP_ServiceSearchRequest
+**
+** Description      This function queries an SDP server for information.
+**
+** Returns          TRUE if discovery started, FALSE if failed.
+**
+*******************************************************************************/
+BOOLEAN SDP_ServiceSearchRequest (UINT8 *p_bd_addr,
+                                         tSDP_DISCOVERY_DB *p_db,
+                                         tSDP_DISC_CMPL_CB *p_cb);
+
+
+/*******************************************************************************
+**
+** Function         SDP_ServiceSearchAttributeRequest
+**
+** Description      This function queries an SDP server for information.
+**
+**                  The difference between this API function and the function
+**                  SDP_ServiceSearchRequest is that this one does a
+**                  combined ServiceSearchAttributeRequest SDP function.
+**
+** Returns          TRUE if discovery started, FALSE if failed.
+**
+*******************************************************************************/
+BOOLEAN SDP_ServiceSearchAttributeRequest (UINT8 *p_bd_addr,
+                                                  tSDP_DISCOVERY_DB *p_db,
+                                                  tSDP_DISC_CMPL_CB *p_cb);
+
+/*******************************************************************************
+**
+** Function         SDP_ServiceSearchAttributeRequest2
+**
+** Description      This function queries an SDP server for information.
+**
+**                  The difference between this API function and the function
+**                  SDP_ServiceSearchRequest is that this one does a
+**                  combined ServiceSearchAttributeRequest SDP function with the
+**                  user data piggyback
+**
+** Returns          TRUE if discovery started, FALSE if failed.
+**
+*******************************************************************************/
+BOOLEAN SDP_ServiceSearchAttributeRequest2 (UINT8 *p_bd_addr,
+                                                   tSDP_DISCOVERY_DB *p_db,
+                                                   tSDP_DISC_CMPL_CB2 *p_cb, void * user_data);
+
+/* API of utilities to find data in the local discovery database */
+
+/*******************************************************************************
+**
+** Function         SDP_FindAttributeInDb
+**
+** Description      This function queries an SDP database for a specific attribute.
+**                  If the p_start_rec pointer is NULL, it looks from the beginning
+**                  of the database, else it continues from the next record after
+**                  p_start_rec.
+**
+** Returns          Pointer to matching record, or NULL
+**
+*******************************************************************************/
+tSDP_DISC_REC *SDP_FindAttributeInDb (tSDP_DISCOVERY_DB *p_db,
+                                             UINT16 attr_id,
+                                             tSDP_DISC_REC *p_start_rec);
+
+
+/*******************************************************************************
+**
+** Function         SDP_FindAttributeInRec
+**
+** Description      This function searches an SDP discovery record for a
+**                  specific attribute.
+**
+** Returns          Pointer to matching attribute entry, or NULL
+**
+*******************************************************************************/
+tSDP_DISC_ATTR *SDP_FindAttributeInRec (tSDP_DISC_REC *p_rec,
+                                               UINT16 attr_id);
+
+
+/*******************************************************************************
+**
+** Function         SDP_FindServiceInDb
+**
+** Description      This function queries an SDP database for a specific service.
+**                  If the p_start_rec pointer is NULL, it looks from the beginning
+**                  of the database, else it continues from the next record after
+**                  p_start_rec.
+**
+** Returns          Pointer to record containing service class, or NULL
+**
+*******************************************************************************/
+tSDP_DISC_REC *SDP_FindServiceInDb (tSDP_DISCOVERY_DB *p_db,
+                                           UINT16 service_uuid,
+                                           tSDP_DISC_REC *p_start_rec);
+
+
+/*******************************************************************************
+**
+** Function         SDP_FindServiceUUIDInDb
+**
+** Description      This function queries an SDP database for a specific service.
+**                  If the p_start_rec pointer is NULL, it looks from the beginning
+**                  of the database, else it continues from the next record after
+**                  p_start_rec.
+**
+** NOTE             the only difference between this function and the previous
+**                  function "SDP_FindServiceInDb()" is that this function takes
+**                  a tBT_UUID input.
+**
+** Returns          Pointer to record containing service class, or NULL
+**
+*******************************************************************************/
+tSDP_DISC_REC *SDP_FindServiceUUIDInDb (tSDP_DISCOVERY_DB *p_db,
+                                               tBT_UUID *p_uuid,
+                                               tSDP_DISC_REC *p_start_rec);
+
+/*******************************************************************************
+**
+** Function         SDP_FindServiceUUIDInRec_128bit
+**
+** Description      This function is called to read the 128-bit service UUID within a record
+**                  if there is any.
+**
+** Parameters:      p_rec      - pointer to a SDP record.
+**                  p_uuid     - output parameter to save the UUID found.
+**
+** Returns          TRUE if found, otherwise FALSE.
+**
+*******************************************************************************/
+BOOLEAN SDP_FindServiceUUIDInRec_128bit(tSDP_DISC_REC *p_rec, tBT_UUID * p_uuid);
+
+/*******************************************************************************
+**
+** Function         SDP_FindServiceInDb_128bit
+**
+** Description      This function queries an SDP database for a specific service.
+**                  If the p_start_rec pointer is NULL, it looks from the beginning
+**                  of the database, else it continues from the next record after
+**                  p_start_rec.
+**
+** Returns          Pointer to record containing service class, or NULL
+**
+*******************************************************************************/
+tSDP_DISC_REC *SDP_FindServiceInDb_128bit(tSDP_DISCOVERY_DB *p_db,
+                                                 tSDP_DISC_REC *p_start_rec);
+
+/*******************************************************************************
+**
+** Function         SDP_FindProtocolListElemInRec
+**
+** Description      This function looks at a specific discovery record for a
+**                  protocol list element.
+**
+** Returns          TRUE if found, FALSE if not
+**                  If found, the passed protocol list element is filled in.
+**
+*******************************************************************************/
+BOOLEAN SDP_FindProtocolListElemInRec (tSDP_DISC_REC *p_rec,
+                                              UINT16 layer_uuid,
+                                              tSDP_PROTOCOL_ELEM *p_elem);
+
+
+/*******************************************************************************
+**
+** Function         SDP_FindAddProtoListsElemInRec
+**
+** Description      This function looks at a specific discovery record for a
+**                  protocol list element.
+**
+** Returns          TRUE if found, FALSE if not
+**                  If found, the passed protocol list element is filled in.
+**
+*******************************************************************************/
+BOOLEAN SDP_FindAddProtoListsElemInRec (tSDP_DISC_REC *p_rec,
+                                               UINT16 layer_uuid,
+                                               tSDP_PROTOCOL_ELEM *p_elem);
+
+
+/*******************************************************************************
+**
+** Function         SDP_FindProfileVersionInRec
+**
+** Description      This function looks at a specific discovery record for the
+**                  Profile list descriptor, and pulls out the version number.
+**                  The version number consists of an 8-bit major version and
+**                  an 8-bit minor version.
+**
+** Returns          TRUE if found, FALSE if not
+**                  If found, the major and minor version numbers that were passed
+**                  in are filled in.
+**
+*******************************************************************************/
+BOOLEAN SDP_FindProfileVersionInRec (tSDP_DISC_REC *p_rec,
+                                            UINT16 profile_uuid,
+                                            UINT16 *p_version);
+
+
+/* API into SDP for local service database updates */
+
+/*******************************************************************************
+**
+** Function         SDP_CreateRecord
+**
+** Description      This function is called to create a record in the database.
+**                  This would be through the SDP database maintenance API. The
+**                  record is created empty, teh application should then call
+**                  "add_attribute" to add the record's attributes.
+**
+** Returns          Record handle if OK, else 0.
+**
+*******************************************************************************/
+UINT32 SDP_CreateRecord (void);
+
+
+/*******************************************************************************
+**
+** Function         SDP_DeleteRecord
+**
+** Description      This function is called to add a record (or all records)
+**                  from the database. This would be through the SDP database
+**                  maintenance API.
+**
+**                  If a record handle of 0 is passed, all records are deleted.
+**
+** Returns          TRUE if succeeded, else FALSE
+**
+*******************************************************************************/
+BOOLEAN SDP_DeleteRecord (UINT32 handle);
+
+
+/*******************************************************************************
+**
+** Function         SDP_ReadRecord
+**
+** Description      This function is called to get the raw data of the record
+**                  with the given handle from the database.
+**
+** Returns          -1, if the record is not found.
+**                  Otherwise, the offset (0 or 1) to start of data in p_data.
+**
+**                  The size of data copied into p_data is in *p_data_len.
+**
+*******************************************************************************/
+INT32 SDP_ReadRecord(UINT32 handle, UINT8 *p_data, INT32 *p_data_len);
+
+/*******************************************************************************
+**
+** Function         SDP_AddAttribute
+**
+** Description      This function is called to add an attribute to a record.
+**                  This would be through the SDP database maintenance API.
+**                  If the attribute already exists in the record, it is replaced
+**                  with the new value.
+**
+** NOTE             Attribute values must be passed as a Big Endian stream.
+**
+** Returns          TRUE if added OK, else FALSE
+**
+*******************************************************************************/
+BOOLEAN SDP_AddAttribute (UINT32 handle, UINT16 attr_id,
+                                 UINT8 attr_type, UINT32 attr_len,
+                                 UINT8 *p_val);
+
+
+/*******************************************************************************
+**
+** Function         SDP_AddSequence
+**
+** Description      This function is called to add a sequence to a record.
+**                  This would be through the SDP database maintenance API.
+**                  If the sequence already exists in the record, it is replaced
+**                  with the new sequence.
+**
+** NOTE             Element values must be passed as a Big Endian stream.
+**
+** Returns          TRUE if added OK, else FALSE
+**
+*******************************************************************************/
+BOOLEAN SDP_AddSequence (UINT32 handle,  UINT16 attr_id,
+                                UINT16 num_elem, UINT8 type[],
+                                UINT8 len[], UINT8 *p_val[]);
+
+
+/*******************************************************************************
+**
+** Function         SDP_AddUuidSequence
+**
+** Description      This function is called to add a UUID sequence to a record.
+**                  This would be through the SDP database maintenance API.
+**                  If the sequence already exists in the record, it is replaced
+**                  with the new sequence.
+**
+** Returns          TRUE if added OK, else FALSE
+**
+*******************************************************************************/
+BOOLEAN SDP_AddUuidSequence (UINT32 handle,  UINT16 attr_id,
+                                    UINT16 num_uuids, UINT16 *p_uuids);
+
+
+/*******************************************************************************
+**
+** Function         SDP_AddProtocolList
+**
+** Description      This function is called to add a protocol descriptor list to
+**                  a record. This would be through the SDP database maintenance API.
+**                  If the protocol list already exists in the record, it is replaced
+**                  with the new list.
+**
+** Returns          TRUE if added OK, else FALSE
+**
+*******************************************************************************/
+BOOLEAN SDP_AddProtocolList (UINT32 handle, UINT16 num_elem,
+                                    tSDP_PROTOCOL_ELEM *p_elem_list);
+
+
+/*******************************************************************************
+**
+** Function         SDP_AddAdditionProtoLists
+**
+** Description      This function is called to add a protocol descriptor list to
+**                  a record. This would be through the SDP database maintenance API.
+**                  If the protocol list already exists in the record, it is replaced
+**                  with the new list.
+**
+** Returns          TRUE if added OK, else FALSE
+**
+*******************************************************************************/
+BOOLEAN SDP_AddAdditionProtoLists (UINT32 handle, UINT16 num_elem,
+                                          tSDP_PROTO_LIST_ELEM *p_proto_list);
+
+
+/*******************************************************************************
+**
+** Function         SDP_AddProfileDescriptorList
+**
+** Description      This function is called to add a profile descriptor list to
+**                  a record. This would be through the SDP database maintenance API.
+**                  If the version already exists in the record, it is replaced
+**                  with the new one.
+**
+** Returns          TRUE if added OK, else FALSE
+**
+*******************************************************************************/
+BOOLEAN SDP_AddProfileDescriptorList (UINT32 handle,
+                                             UINT16 profile_uuid,
+                                             UINT16 version);
+
+/*******************************************************************************
+**
+** Function         SDP_AddLanguageBaseAttrIDList
+**
+** Description      This function is called to add a language base attr list to
+**                  a record. This would be through the SDP database maintenance API.
+**                  If the version already exists in the record, it is replaced
+**                  with the new one.
+**
+** Returns          TRUE if added OK, else FALSE
+**
+*******************************************************************************/
+BOOLEAN SDP_AddLanguageBaseAttrIDList (UINT32 handle,
+                                              UINT16 lang, UINT16 char_enc,
+                                              UINT16 base_id);
+
+/*******************************************************************************
+**
+** Function         SDP_AddServiceClassIdList
+**
+** Description      This function is called to add a service list to a record.
+**                  This would be through the SDP database maintenance API.
+**                  If the service list already exists in the record, it is replaced
+**                  with the new list.
+**
+** Returns          TRUE if added OK, else FALSE
+**
+*******************************************************************************/
+BOOLEAN SDP_AddServiceClassIdList (UINT32 handle,
+                                          UINT16 num_services,
+                                          UINT16 *p_service_uuids);
+
+/*******************************************************************************
+**
+** Function         SDP_DeleteAttribute
+**
+** Description      This function is called to delete an attribute from a record.
+**                  This would be through the SDP database maintenance API.
+**
+** Returns          TRUE if deleted OK, else FALSE if not found
+**
+*******************************************************************************/
+BOOLEAN SDP_DeleteAttribute (UINT32 handle, UINT16 attr_id);
+
+/* Device Identification APIs */
+
+/*******************************************************************************
+**
+** Function         SDP_SetLocalDiRecord
+**
+** Description      This function adds a DI record to the local SDP database.
+**
+** Returns          Returns SDP_SUCCESS if record added successfully, else error
+**
+*******************************************************************************/
+UINT16 SDP_SetLocalDiRecord (tSDP_DI_RECORD *device_info,
+                                    UINT32 *p_handle);
+
+/*******************************************************************************
+**
+** Function         SDP_DiDiscover
+**
+** Description      This function queries a remote device for DI information.
+**
+** Returns          SDP_SUCCESS if query started successfully, else error
+**
+*******************************************************************************/
+UINT16 SDP_DiDiscover (BD_ADDR remote_device,
+                              tSDP_DISCOVERY_DB *p_db, UINT32 len,
+                              tSDP_DISC_CMPL_CB *p_cb);
+
+/*******************************************************************************
+**
+** Function         SDP_GetNumDiRecords
+**
+** Description      Searches specified database for DI records
+**
+** Returns          number of DI records found
+**
+*******************************************************************************/
+UINT8  SDP_GetNumDiRecords (tSDP_DISCOVERY_DB *p_db);
+
+/*******************************************************************************
+**
+** Function         SDP_GetDiRecord
+**
+** Description      This function retrieves a remote device's DI record from
+**                  the specified database.
+**
+** Returns          SDP_SUCCESS if record retrieved, else error
+**
+*******************************************************************************/
+UINT16 SDP_GetDiRecord (UINT8 getRecordIndex,
+                               tSDP_DI_GET_RECORD *device_info,
+                               tSDP_DISCOVERY_DB *p_db);
+
+/*******************************************************************************
+**
+** Function         SDP_SetTraceLevel
+**
+** Description      This function sets the trace level for SDP. If called with
+**                  a value of 0xFF, it simply reads the current trace level.
+**
+** Returns          the new (current) trace level
+**
+*******************************************************************************/
+UINT8 SDP_SetTraceLevel (UINT8 new_level);
+
+/*******************************************************************************
+**
+** Function         SDP_FindServiceUUIDInRec
+**
+** Description      This function is called to read the service UUID within a record
+**                  if there is any.
+**
+** Parameters:      p_rec      - pointer to a SDP record.
+**
+** Returns          TRUE if found, otherwise FALSE.
+**
+*******************************************************************************/
+BOOLEAN SDP_FindServiceUUIDInRec(tSDP_DISC_REC *p_rec, tBT_UUID *p_uuid);
+
+#endif  /* SDP_API_H */
diff --git a/rtkbt/code/bt/stack/include/sdpdefs.h b/rtkbt/code/bt/stack/include/sdpdefs.h
new file mode 100755
index 0000000..44d87e7
--- /dev/null
+++ b/rtkbt/code/bt/stack/include/sdpdefs.h
@@ -0,0 +1,327 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains the definitions for the SDP API
+ *
+ ******************************************************************************/
+
+#ifndef SDP_DEFS_H
+#define SDP_DEFS_H
+
+/* Define the service attribute IDs.
+*/
+#define  ATTR_ID_SERVICE_RECORD_HDL             0x0000
+#define  ATTR_ID_SERVICE_CLASS_ID_LIST          0x0001
+#define  ATTR_ID_SERVICE_RECORD_STATE           0x0002
+#define  ATTR_ID_SERVICE_ID                     0x0003
+#define  ATTR_ID_PROTOCOL_DESC_LIST             0x0004
+#define  ATTR_ID_BROWSE_GROUP_LIST              0x0005
+#define  ATTR_ID_LANGUAGE_BASE_ATTR_ID_LIST     0x0006
+#define  ATTR_ID_SERVICE_INFO_TIME_TO_LIVE      0x0007
+#define  ATTR_ID_SERVICE_AVAILABILITY           0x0008
+#define  ATTR_ID_BT_PROFILE_DESC_LIST           0x0009
+#define  ATTR_ID_DOCUMENTATION_URL              0x000A
+#define  ATTR_ID_CLIENT_EXE_URL                 0x000B
+#define  ATTR_ID_ICON_URL                       0x000C
+#define  ATTR_ID_ADDITION_PROTO_DESC_LISTS      0x000D
+
+#define  LANGUAGE_BASE_ID                       0x0100
+#define  ATTR_ID_SERVICE_NAME                   LANGUAGE_BASE_ID + 0x0000
+#define  ATTR_ID_SERVICE_DESCRIPTION            LANGUAGE_BASE_ID + 0x0001
+#define  ATTR_ID_PROVIDER_NAME                  LANGUAGE_BASE_ID + 0x0002
+
+/* Device Identification (DI)
+*/
+#define ATTR_ID_SPECIFICATION_ID                0x0200
+#define ATTR_ID_VENDOR_ID                       0x0201
+#define ATTR_ID_PRODUCT_ID                      0x0202
+#define ATTR_ID_PRODUCT_VERSION                 0x0203
+#define ATTR_ID_PRIMARY_RECORD                  0x0204
+#define ATTR_ID_VENDOR_ID_SOURCE                0x0205
+
+#define BLUETOOTH_DI_SPECIFICATION              0x0103  /* 1.3 */
+#define DI_VENDOR_ID_DEFAULT                    0xFFFF
+#define DI_VENDOR_ID_SOURCE_BTSIG               0x0001
+#define DI_VENDOR_ID_SOURCE_USBIF               0x0002
+
+
+#define  ATTR_ID_IP_SUBNET                      0x0200 /* PAN Profile (***) */
+#define  ATTR_ID_VERSION_NUMBER_LIST            0x0200
+#define  ATTR_ID_GOEP_L2CAP_PSM                 0x0200
+#define  ATTR_ID_GROUP_ID                       0x0200
+#define  ATTR_ID_SERVICE_DATABASE_STATE         0x0201
+#define  ATTR_ID_SERVICE_VERSION                0x0300
+#define  ATTR_ID_HCRP_1284ID                    0x0300
+
+#define  ATTR_ID_SUPPORTED_DATA_STORES          0x0301
+#define  ATTR_ID_NETWORK                        0x0301
+#define  ATTR_ID_EXTERNAL_NETWORK               0x0301
+#define  ATTR_ID_FAX_CLASS_1_SUPPORT            0x0302
+#define  ATTR_ID_REMOTE_AUDIO_VOLUME_CONTROL    0x0302
+#define  ATTR_ID_DEVICE_NAME                    0x0302
+#define  ATTR_ID_SUPPORTED_FORMATS_LIST         0x0303
+#define  ATTR_ID_FAX_CLASS_2_0_SUPPORT          0x0303
+#define  ATTR_ID_FAX_CLASS_2_SUPPORT            0x0304
+#define  ATTR_ID_FRIENDLY_NAME                  0x0304
+#define  ATTR_ID_AUDIO_FEEDBACK_SUPPORT         0x0305
+#define  ATTR_ID_NETWORK_ADDRESS                0x0306
+#define  ATTR_ID_DEVICE_LOCATION                0x0306
+#define  ATTR_ID_WAP_GATEWAY                    0x0307
+#define  ATTR_ID_HOME_PAGE_URL                  0x0308
+#define  ATTR_ID_WAP_STACK_TYPE                 0x0309
+#define  ATTR_ID_IMG_SUPPORTED_CAPABILITIES     0x0310 /* Imaging Profile */
+#define  ATTR_ID_SUPPORTED_FEATURES             0x0311 /* HFP, BIP */
+#define  ATTR_ID_IMG_SUPPORTED_FUNCTIONS        0x0312 /* Imaging Profile */
+#define  ATTR_ID_IMG_TOT_DATA_CAPABILITY        0x0313 /* Imaging Profile */
+#define  ATTR_ID_SUPPORTED_REPOSITORIES         0x0314 /* Phone book access Profile */
+#define  ATTR_ID_MAS_INSTANCE_ID                0x0315 /* MAP profile */
+#define  ATTR_ID_SUPPORTED_MSG_TYPE             0x0316 /* MAP profile */
+#define  ATTR_ID_MAP_SUPPORTED_FEATURES         0x0317 /* MAP profile */
+#define  ATTR_ID_PBAP_SUPPORTED_FEATURES        0x0317 /* PBAP profile */
+
+
+/* These values are for the BPP profile */
+#define ATTR_ID_DOCUMENT_FORMATS_SUPPORTED      0x0350
+#define ATTR_ID_CHARACTER_REPERTOIRES_SUPPORTED 0x0352
+#define ATTR_ID_XHTML_IMAGE_FORMATS_SUPPORTED   0x0354
+#define ATTR_ID_COLOR_SUPPORTED                 0x0356
+#define ATTR_ID_1284ID                          0x0358
+#define ATTR_ID_PRINTER_NAME                    0x035A
+#define ATTR_ID_PRINTER_LOCATION                0x035C
+#define ATTR_ID_DUPLEX_SUPPORTED                0x035E
+#define ATTR_ID_MEDIA_TYPES_SUPPORTED           0x0360
+#define ATTR_ID_MAX_MEDIA_WIDTH                 0x0362
+#define ATTR_ID_MAX_MEDIA_LENGTH                0x0364
+#define ATTR_ID_ENHANCED_LAYOUT_SUPPORTED       0x0366
+#define ATTR_ID_RUI_FORMATS_SUPPORTED           0x0368
+#define ATTR_ID_RUI_REF_PRINTING_SUPPORTED      0x0370  /* Boolean */
+#define ATTR_ID_RUI_DIRECT_PRINTING_SUPPORTED   0x0372  /* Boolean */
+#define ATTR_ID_REF_PRINTING_TOP_URL            0x0374
+#define ATTR_ID_DIRECT_PRINTING_TOP_URL         0x0376
+#define ATTR_ID_PRINTER_ADMIN_RUI_TOP_URL       0x0378
+#define ATTR_ID_BPP_DEVICE_NAME                 0x037A
+
+/* These values are for the PAN profile */
+#define  ATTR_ID_SECURITY_DESCRIPTION           0x030A
+#define  ATTR_ID_NET_ACCESS_TYPE                0x030B
+#define  ATTR_ID_MAX_NET_ACCESS_RATE            0x030C
+#define  ATTR_ID_IPV4_SUBNET                    0x030D
+#define  ATTR_ID_IPV6_SUBNET                    0x030E
+#define  ATTR_ID_PAN_SECURITY                   0x0400
+
+/* These values are for HID profile */
+#define  ATTR_ID_HID_DEVICE_RELNUM          0x0200
+#define  ATTR_ID_HID_PARSER_VERSION         0x0201
+#define  ATTR_ID_HID_DEVICE_SUBCLASS        0x0202
+#define  ATTR_ID_HID_COUNTRY_CODE           0x0203
+#define  ATTR_ID_HID_VIRTUAL_CABLE          0x0204
+#define  ATTR_ID_HID_RECONNECT_INITIATE     0x0205
+#define  ATTR_ID_HID_DESCRIPTOR_LIST        0x0206
+#define  ATTR_ID_HID_LANGUAGE_ID_BASE       0x0207
+#define  ATTR_ID_HID_SDP_DISABLE            0x0208
+#define  ATTR_ID_HID_BATTERY_POWER          0x0209
+#define  ATTR_ID_HID_REMOTE_WAKE            0x020A
+#define  ATTR_ID_HID_PROFILE_VERSION        0x020B
+#define  ATTR_ID_HID_LINK_SUPERVISION_TO    0x020C
+#define  ATTR_ID_HID_NORMALLY_CONNECTABLE   0x020D
+#define  ATTR_ID_HID_BOOT_DEVICE            0x020E
+#define  ATTR_ID_HID_SSR_HOST_MAX_LAT       0x020F
+#define  ATTR_ID_HID_SSR_HOST_MIN_TOUT      0x0210
+
+/* These values are for the HDP profile */
+#define  ATTR_ID_HDP_SUP_FEAT_LIST          0x0200  /* Supported features list */
+#define  ATTR_ID_HDP_DATA_EXCH_SPEC         0x0301  /* Data exchange specification */
+#define  ATTR_ID_HDP_MCAP_SUP_PROC          0x0302  /* MCAP supported procedures */
+
+/* Define common 16-bit protocol UUIDs
+*/
+#define UUID_PROTOCOL_SDP                    0x0001
+#define UUID_PROTOCOL_UDP                    0x0002
+#define UUID_PROTOCOL_RFCOMM                 0x0003
+#define UUID_PROTOCOL_TCP                    0x0004
+#define UUID_PROTOCOL_TCS_BIN                0x0005
+#define UUID_PROTOCOL_TCS_AT                 0x0006
+#define UUID_PROTOCOL_OBEX                   0x0008
+#define UUID_PROTOCOL_IP                     0x0009
+#define UUID_PROTOCOL_FTP                    0x000A
+#define UUID_PROTOCOL_HTTP                   0x000C
+#define UUID_PROTOCOL_WSP                    0x000E
+#define UUID_PROTOCOL_BNEP                   0x000F
+#define UUID_PROTOCOL_UPNP                   0x0010
+#define UUID_PROTOCOL_HIDP                   0x0011
+#define UUID_PROTOCOL_HCRP_CTRL              0x0012
+#define UUID_PROTOCOL_HCRP_DATA              0x0014
+#define UUID_PROTOCOL_HCRP_NOTIF             0x0016
+#define UUID_PROTOCOL_AVCTP                  0x0017
+#define UUID_PROTOCOL_AVDTP                  0x0019
+#define UUID_PROTOCOL_CMTP                   0x001B
+#define UUID_PROTOCOL_UDI                    0x001D
+#define UUID_PROTOCOL_MCAP_CTRL              0x001E
+#define UUID_PROTOCOL_MCAP_DATA              0x001F
+#define UUID_PROTOCOL_L2CAP                  0x0100
+#define UUID_PROTOCOL_ATT                    0x0007
+
+/* Define common 16-bit service class UUIDs
+*/
+#define UUID_SERVCLASS_SERVICE_DISCOVERY_SERVER 0X1000
+#define UUID_SERVCLASS_BROWSE_GROUP_DESCRIPTOR  0X1001
+#define UUID_SERVCLASS_PUBLIC_BROWSE_GROUP      0X1002
+#define UUID_SERVCLASS_SERIAL_PORT              0X1101
+#define UUID_SERVCLASS_LAN_ACCESS_USING_PPP     0X1102
+#define UUID_SERVCLASS_DIALUP_NETWORKING        0X1103
+#define UUID_SERVCLASS_IRMC_SYNC                0X1104
+#define UUID_SERVCLASS_OBEX_OBJECT_PUSH         0X1105
+#define UUID_SERVCLASS_OBEX_FILE_TRANSFER       0X1106
+#define UUID_SERVCLASS_IRMC_SYNC_COMMAND        0X1107
+#define UUID_SERVCLASS_HEADSET                  0X1108
+#define UUID_SERVCLASS_CORDLESS_TELEPHONY       0X1109
+#define UUID_SERVCLASS_AUDIO_SOURCE             0X110A
+#define UUID_SERVCLASS_AUDIO_SINK               0X110B
+#define UUID_SERVCLASS_AV_REM_CTRL_TARGET       0X110C  /* Audio/Video Control profile */
+#define UUID_SERVCLASS_ADV_AUDIO_DISTRIBUTION   0X110D  /* Advanced Audio Distribution profile */
+#define UUID_SERVCLASS_AV_REMOTE_CONTROL        0X110E  /* Audio/Video Control profile */
+#define UUID_SERVCLASS_AV_REM_CTRL_CONTROL      0X110F  /* Audio/Video Control profile */
+#define UUID_SERVCLASS_INTERCOM                 0X1110
+#define UUID_SERVCLASS_FAX                      0X1111
+#define UUID_SERVCLASS_HEADSET_AUDIO_GATEWAY    0X1112
+#define UUID_SERVCLASS_WAP                      0X1113
+#define UUID_SERVCLASS_WAP_CLIENT               0X1114
+#define UUID_SERVCLASS_PANU                     0X1115  /* PAN profile */
+#define UUID_SERVCLASS_NAP                      0X1116  /* PAN profile */
+#define UUID_SERVCLASS_GN                       0X1117  /* PAN profile */
+#define UUID_SERVCLASS_DIRECT_PRINTING          0X1118  /* BPP profile */
+#define UUID_SERVCLASS_REFERENCE_PRINTING       0X1119  /* BPP profile */
+#define UUID_SERVCLASS_IMAGING                  0X111A  /* Imaging profile */
+#define UUID_SERVCLASS_IMAGING_RESPONDER        0X111B  /* Imaging profile */
+#define UUID_SERVCLASS_IMAGING_AUTO_ARCHIVE     0X111C  /* Imaging profile */
+#define UUID_SERVCLASS_IMAGING_REF_OBJECTS      0X111D  /* Imaging profile */
+#define UUID_SERVCLASS_HF_HANDSFREE             0X111E  /* Handsfree profile */
+#define UUID_SERVCLASS_AG_HANDSFREE             0X111F  /* Handsfree profile */
+#define UUID_SERVCLASS_DIR_PRT_REF_OBJ_SERVICE  0X1120  /* BPP profile */
+#define UUID_SERVCLASS_REFLECTED_UI             0X1121  /* BPP profile */
+#define UUID_SERVCLASS_BASIC_PRINTING           0X1122  /* BPP profile */
+#define UUID_SERVCLASS_PRINTING_STATUS          0X1123  /* BPP profile */
+#define UUID_SERVCLASS_HUMAN_INTERFACE          0X1124  /* HID profile */
+#define UUID_SERVCLASS_CABLE_REPLACEMENT        0X1125  /* HCRP profile */
+#define UUID_SERVCLASS_HCRP_PRINT               0X1126  /* HCRP profile */
+#define UUID_SERVCLASS_HCRP_SCAN                0X1127  /* HCRP profile */
+#define UUID_SERVCLASS_COMMON_ISDN_ACCESS       0X1128  /* CAPI Message Transport Protocol*/
+#define UUID_SERVCLASS_VIDEO_CONFERENCING_GW    0X1129  /* Video Conferencing profile */
+#define UUID_SERVCLASS_UDI_MT                   0X112A  /* Unrestricted Digital Information profile */
+#define UUID_SERVCLASS_UDI_TA                   0X112B  /* Unrestricted Digital Information profile */
+#define UUID_SERVCLASS_VCP                      0X112C  /* Video Conferencing profile */
+#define UUID_SERVCLASS_SAP                      0X112D  /* SIM Access profile */
+#define UUID_SERVCLASS_PBAP_PCE                 0X112E  /* Phonebook Access - PCE */
+#define UUID_SERVCLASS_PBAP_PSE                 0X112F  /* Phonebook Access - PSE */
+#define UUID_SERVCLASS_PHONE_ACCESS             0x1130
+#define UUID_SERVCLASS_HEADSET_HS               0x1131  /* Headset - HS, from HSP v1.2 */
+#define UUID_SERVCLASS_PNP_INFORMATION          0X1200  /* Device Identification */
+#define UUID_SERVCLASS_GENERIC_NETWORKING       0X1201
+#define UUID_SERVCLASS_GENERIC_FILETRANSFER     0X1202
+#define UUID_SERVCLASS_GENERIC_AUDIO            0X1203
+#define UUID_SERVCLASS_GENERIC_TELEPHONY        0X1204
+#define UUID_SERVCLASS_UPNP_SERVICE             0X1205  /* UPNP_Service [ESDP] */
+#define UUID_SERVCLASS_UPNP_IP_SERVICE          0X1206  /* UPNP_IP_Service [ESDP] */
+#define UUID_SERVCLASS_ESDP_UPNP_IP_PAN         0X1300  /* UPNP_IP_PAN [ESDP] */
+#define UUID_SERVCLASS_ESDP_UPNP_IP_LAP         0X1301  /* UPNP_IP_LAP [ESDP] */
+#define UUID_SERVCLASS_ESDP_UPNP_IP_L2CAP       0X1302  /* UPNP_L2CAP [ESDP] */
+#define UUID_SERVCLASS_VIDEO_SOURCE             0X1303  /* Video Distribution Profile (VDP) */
+#define UUID_SERVCLASS_VIDEO_SINK               0X1304  /* Video Distribution Profile (VDP) */
+#define UUID_SERVCLASS_VIDEO_DISTRIBUTION       0X1305  /* Video Distribution Profile (VDP) */
+#define UUID_SERVCLASS_HDP_PROFILE              0X1400  /* Health Device profile (HDP) */
+#define UUID_SERVCLASS_HDP_SOURCE               0X1401  /* Health Device profile (HDP) */
+#define UUID_SERVCLASS_HDP_SINK                 0X1402  /* Health Device profile (HDP) */
+#define UUID_SERVCLASS_MAP_PROFILE              0X1134  /* MAP profile UUID */
+#define UUID_SERVCLASS_MESSAGE_ACCESS           0X1132  /* Message Access Service UUID */
+#define UUID_SERVCLASS_MESSAGE_NOTIFICATION     0X1133  /* Message Notification Service UUID */
+
+#define UUID_SERVCLASS_GAP_SERVER               0x1800
+#define UUID_SERVCLASS_GATT_SERVER              0x1801
+#define UUID_SERVCLASS_IMMEDIATE_ALERT          0x1802      /* immediate alert */
+#define UUID_SERVCLASS_LINKLOSS                 0x1803      /* Link Loss Alert */
+#define UUID_SERVCLASS_TX_POWER                 0x1804      /* TX power */
+#define UUID_SERVCLASS_CURRENT_TIME             0x1805      /* Link Loss Alert */
+#define UUID_SERVCLASS_DST_CHG                  0x1806      /* DST Time change */
+#define UUID_SERVCLASS_REF_TIME_UPD             0x1807      /* reference time update */
+#define UUID_SERVCLASS_THERMOMETER              0x1809      /* Thermometer UUID */
+#define UUID_SERVCLASS_DEVICE_INFO              0x180A      /* device info service */
+#define UUID_SERVCLASS_NWA                      0x180B      /* Network availability */
+#define UUID_SERVCLASS_HEART_RATE               0x180D      /* Heart Rate service */
+#define UUID_SERVCLASS_PHALERT                  0x180E      /* phone alert service */
+#define UUID_SERVCLASS_BATTERY                  0x180F     /* battery service */
+#define UUID_SERVCLASS_BPM                      0x1810      /*  blood pressure service */
+#define UUID_SERVCLASS_ALERT_NOTIFICATION       0x1811      /* alert notification service */
+#define UUID_SERVCLASS_LE_HID                   0x1812     /*  HID over LE */
+#define UUID_SERVCLASS_SCAN_PARAM               0x1813      /* Scan Parameter service */
+#define UUID_SERVCLASS_GLUCOSE                  0x1808      /* Glucose Meter Service */
+#define UUID_SERVCLASS_RSC                      0x1814      /* RUNNERS SPEED AND CADENCE SERVICE      */
+#define UUID_SERVCLASS_CSC                      0x1816      /* Cycling SPEED AND CADENCE SERVICE      */
+
+#define UUID_SERVCLASS_TEST_SERVER              0x9000      /* Test Group UUID */
+
+#if (BTM_WBS_INCLUDED == TRUE )
+#define UUID_CODEC_CVSD                         0x0001   /* CVSD */
+#define UUID_CODEC_MSBC                         0x0002   /* mSBC */
+#endif
+
+/* Define all the 'Descriptor Type' values.
+*/
+#define  NULL_DESC_TYPE                     0
+#define  UINT_DESC_TYPE                     1
+#define  TWO_COMP_INT_DESC_TYPE             2
+#define  UUID_DESC_TYPE                     3
+#define  TEXT_STR_DESC_TYPE                 4
+#define  BOOLEAN_DESC_TYPE                  5
+#define  DATA_ELE_SEQ_DESC_TYPE             6
+#define  DATA_ELE_ALT_DESC_TYPE             7
+#define  URL_DESC_TYPE                      8
+
+/* Define all the "Descriptor Size" values.
+*/
+#define  SIZE_ONE_BYTE                0
+#define  SIZE_TWO_BYTES               1
+#define  SIZE_FOUR_BYTES              2
+#define  SIZE_EIGHT_BYTES             3
+#define  SIZE_SIXTEEN_BYTES           4
+#define  SIZE_IN_NEXT_BYTE            5
+#define  SIZE_IN_NEXT_WORD            6
+#define  SIZE_IN_NEXT_LONG            7
+
+/* Language Encoding Constants */
+#define LANG_ID_CODE_ENGLISH            ((UINT16) 0x656e)   /* "en" */
+#define LANG_ID_CHAR_ENCODE_UTF8        ((UINT16) 0x006a)   /* UTF-8 */
+
+/* Constants used for display purposes only.  These define ovelapping attribute values */
+#define  ATTR_ID_VERS_OR_GRP_OR_DRELNUM_OR_IPSUB_OR_SPECID  0x0200
+#define  ATTR_ID_VEND_ID_OR_SERVICE_DB_STATE_OR_PARSE_VER   0x0201
+#define  ATTR_ID_PROD_ID_OR_HID_DEV_SUBCLASS                0x0202
+#define  ATTR_ID_PROD_VER_OR_HID_COUNTRY_CODE               0x0203
+#define  ATTR_ID_PRIMARY_REC_OR_HID_VIRTUAL_CABLE           0x0204
+#define  ATTR_ID_DI_VENDOR_ID_SOURCE_OR_HID_INIT_RECONNECT  0x0205
+#define  ATTR_ID_SERV_VERS_OR_1284ID                        0x0300
+#define  ATTR_ID_DATA_STORES_OR_NETWORK                     0x0301
+#define  ATTR_ID_FAX_1_OR_AUD_VOL_OR_DEV_NAME               0x0302
+#define  ATTR_ID_FORMATS_OR_FAX_2_0                         0x0303
+#define  ATTR_ID_FAX_CLASS_2_OR_FRIENDLY_NAME               0x0304
+#define  ATTR_ID_NETADDRESS_OR_DEVLOCATION                  0x0306
+
+#endif
+
+
diff --git a/rtkbt/code/bt/stack/include/smp_api.h b/rtkbt/code/bt/stack/include/smp_api.h
new file mode 100755
index 0000000..62ef1db
--- /dev/null
+++ b/rtkbt/code/bt/stack/include/smp_api.h
@@ -0,0 +1,494 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains the SMP API function external definitions.
+ *
+ ******************************************************************************/
+#ifndef SMP_API_H
+#define SMP_API_H
+
+#include "bt_target.h"
+
+#define SMP_PIN_CODE_LEN_MAX    PIN_CODE_LEN
+#define SMP_PIN_CODE_LEN_MIN    6
+
+#if BLE_INCLUDED == TRUE && SMP_INCLUDED == TRUE
+/* SMP command code */
+#define SMP_OPCODE_PAIRING_REQ            0x01
+#define SMP_OPCODE_PAIRING_RSP            0x02
+#define SMP_OPCODE_CONFIRM                0x03
+#define SMP_OPCODE_RAND                   0x04
+#define SMP_OPCODE_PAIRING_FAILED         0x05
+#define SMP_OPCODE_ENCRYPT_INFO           0x06
+#define SMP_OPCODE_MASTER_ID              0x07
+#define SMP_OPCODE_IDENTITY_INFO          0x08
+#define SMP_OPCODE_ID_ADDR                0x09
+#define SMP_OPCODE_SIGN_INFO              0x0A
+#define SMP_OPCODE_SEC_REQ                0x0B
+#define SMP_OPCODE_PAIR_PUBLIC_KEY        0x0C
+#define SMP_OPCODE_PAIR_DHKEY_CHECK       0x0D
+#define SMP_OPCODE_PAIR_KEYPR_NOTIF       0x0E
+#define SMP_OPCODE_MAX                    SMP_OPCODE_PAIR_KEYPR_NOTIF
+#define SMP_OPCODE_MIN                    SMP_OPCODE_PAIRING_REQ
+#define SMP_OPCODE_PAIR_COMMITM           0x0F
+#endif
+
+/* SMP event type */
+#define SMP_IO_CAP_REQ_EVT      1       /* IO capability request event */
+#define SMP_SEC_REQUEST_EVT     2       /* SMP pairing request */
+#define SMP_PASSKEY_NOTIF_EVT   3       /* passkey notification event */
+#define SMP_PASSKEY_REQ_EVT     4       /* passkey request event */
+#define SMP_OOB_REQ_EVT         5       /* OOB request event */
+#define SMP_NC_REQ_EVT          6       /* Numeric Comparison request event */
+#define SMP_COMPLT_EVT          7       /* SMP complete event */
+#define SMP_PEER_KEYPR_NOT_EVT  8       /* Peer keypress notification received event */
+#define SMP_SC_OOB_REQ_EVT      9       /* SC OOB request event (both local and peer OOB data */
+                                        /* can be expected in response) */
+#define SMP_SC_LOC_OOB_DATA_UP_EVT  10  /* SC OOB local data set is created */
+                                        /* (as result of SMP_CrLocScOobData(...)) */
+#define SMP_BR_KEYS_REQ_EVT     12      /* SMP over BR keys request event */
+typedef UINT8   tSMP_EVT;
+
+
+/* pairing failure reason code */
+#define SMP_PASSKEY_ENTRY_FAIL      0x01
+#define SMP_OOB_FAIL                0x02
+#define SMP_PAIR_AUTH_FAIL          0x03
+#define SMP_CONFIRM_VALUE_ERR       0x04
+#define SMP_PAIR_NOT_SUPPORT        0x05
+#define SMP_ENC_KEY_SIZE            0x06
+#define SMP_INVALID_CMD             0x07
+#define SMP_PAIR_FAIL_UNKNOWN       0x08
+#define SMP_REPEATED_ATTEMPTS       0x09
+#define SMP_INVALID_PARAMETERS      0x0A
+#define SMP_DHKEY_CHK_FAIL          0x0B
+#define SMP_NUMERIC_COMPAR_FAIL     0x0C
+#define SMP_BR_PARING_IN_PROGR      0x0D
+#define SMP_XTRANS_DERIVE_NOT_ALLOW 0x0E
+#define SMP_MAX_FAIL_RSN_PER_SPEC   SMP_XTRANS_DERIVE_NOT_ALLOW
+
+/* self defined error code */
+#define SMP_PAIR_INTERNAL_ERR       (SMP_MAX_FAIL_RSN_PER_SPEC + 0x01) /* 0x0E */
+
+/* 0x0F unknown IO capability, unable to decide association model */
+#define SMP_UNKNOWN_IO_CAP          (SMP_MAX_FAIL_RSN_PER_SPEC + 0x02) /* 0x0F */
+
+#define SMP_INIT_FAIL               (SMP_MAX_FAIL_RSN_PER_SPEC + 0x03) /* 0x10 */
+#define SMP_CONFIRM_FAIL            (SMP_MAX_FAIL_RSN_PER_SPEC + 0x04) /* 0x11 */
+#define SMP_BUSY                    (SMP_MAX_FAIL_RSN_PER_SPEC + 0x05) /* 0x12 */
+#define SMP_ENC_FAIL                (SMP_MAX_FAIL_RSN_PER_SPEC + 0x06) /* 0x13 */
+#define SMP_STARTED                 (SMP_MAX_FAIL_RSN_PER_SPEC + 0x07) /* 0x14 */
+#define SMP_RSP_TIMEOUT             (SMP_MAX_FAIL_RSN_PER_SPEC + 0x08) /* 0x15 */
+#define SMP_DIV_NOT_AVAIL           (SMP_MAX_FAIL_RSN_PER_SPEC + 0x09) /* 0x16 */
+
+/* 0x17 unspecified failed reason */
+#define SMP_FAIL                    (SMP_MAX_FAIL_RSN_PER_SPEC + 0x0A) /* 0x17 */
+
+#define SMP_CONN_TOUT               (SMP_MAX_FAIL_RSN_PER_SPEC + 0x0B)
+#define SMP_SUCCESS                 0
+
+typedef UINT8 tSMP_STATUS;
+
+
+/* Device IO capability */
+#define SMP_IO_CAP_OUT      BTM_IO_CAP_OUT   /* DisplayOnly */
+#define SMP_IO_CAP_IO       BTM_IO_CAP_IO   /* DisplayYesNo */
+#define SMP_IO_CAP_IN       BTM_IO_CAP_IN   /* KeyboardOnly */
+#define SMP_IO_CAP_NONE     BTM_IO_CAP_NONE   /* NoInputNoOutput */
+#define SMP_IO_CAP_KBDISP   BTM_IO_CAP_KBDISP   /* Keyboard Display */
+#define SMP_IO_CAP_MAX      BTM_IO_CAP_MAX
+typedef UINT8  tSMP_IO_CAP;
+
+#ifndef SMP_DEFAULT_IO_CAPS
+    #define SMP_DEFAULT_IO_CAPS     SMP_IO_CAP_KBDISP
+#endif
+
+/* OOB data present or not */
+enum
+{
+    SMP_OOB_NONE,
+    SMP_OOB_PRESENT,
+    SMP_OOB_UNKNOWN
+};
+typedef UINT8  tSMP_OOB_FLAG;
+
+/* type of OOB data required from application */
+enum
+{
+    SMP_OOB_INVALID_TYPE,
+    SMP_OOB_PEER,
+    SMP_OOB_LOCAL,
+    SMP_OOB_BOTH
+};
+typedef UINT8   tSMP_OOB_DATA_TYPE;
+
+#define SMP_AUTH_NO_BOND        0x00
+#define SMP_AUTH_GEN_BOND       0x01 //todo sdh change GEN_BOND to BOND
+
+/* SMP Authentication requirement */
+#define SMP_AUTH_YN_BIT         (1 << 2)
+#define SMP_SC_SUPPORT_BIT      (1 << 3)
+#define SMP_KP_SUPPORT_BIT      (1 << 4)
+
+#define SMP_AUTH_MASK    (SMP_AUTH_GEN_BOND|SMP_AUTH_YN_BIT|SMP_SC_SUPPORT_BIT|SMP_KP_SUPPORT_BIT)
+
+#define SMP_AUTH_BOND           SMP_AUTH_GEN_BOND
+
+/* no MITM, No Bonding, encryption only */
+#define SMP_AUTH_NB_ENC_ONLY    0x00 //(SMP_AUTH_MASK | BTM_AUTH_SP_NO)
+
+/* MITM, No Bonding, Use IO Capability to determine authentication procedure */
+#define SMP_AUTH_NB_IOCAP       (SMP_AUTH_NO_BOND | SMP_AUTH_YN_BIT)
+
+/* No MITM, General Bonding, Encryption only */
+#define SMP_AUTH_GB_ENC_ONLY    (SMP_AUTH_GEN_BOND )
+
+/* MITM, General Bonding, Use IO Capability to determine authentication procedure */
+#define SMP_AUTH_GB_IOCAP       (SMP_AUTH_GEN_BOND | SMP_AUTH_YN_BIT)
+
+/* Secure Connections, no MITM, no Bonding */
+#define SMP_AUTH_SC_ENC_ONLY    (SMP_SC_SUPPORT_BIT)
+
+/* Secure Connections, no MITM, Bonding */
+#define SMP_AUTH_SC_GB          (SMP_SC_SUPPORT_BIT | SMP_AUTH_GEN_BOND)
+
+/* Secure Connections, MITM, no Bonding */
+#define SMP_AUTH_SC_MITM_NB     (SMP_SC_SUPPORT_BIT | SMP_AUTH_YN_BIT | SMP_AUTH_NO_BOND)
+
+/* Secure Connections, MITM, Bonding */
+#define SMP_AUTH_SC_MITM_GB     (SMP_SC_SUPPORT_BIT | SMP_AUTH_YN_BIT | SMP_AUTH_GEN_BOND)
+
+ /* All AuthReq RFU bits are set to 1 - NOTE: reserved bit in Bonding_Flags is not set */
+#define SMP_AUTH_ALL_RFU_SET    0xF8
+
+typedef UINT8 tSMP_AUTH_REQ;
+
+#define SMP_SEC_NONE                 0
+#define SMP_SEC_UNAUTHENTICATE      (1 << 0)
+#define SMP_SEC_AUTHENTICATED       (1 << 2)
+typedef UINT8 tSMP_SEC_LEVEL;
+
+/* Maximum Encryption Key Size range */
+#define SMP_ENCR_KEY_SIZE_MIN       7
+#define SMP_ENCR_KEY_SIZE_MAX       16
+
+/* SMP key types */
+#define SMP_SEC_KEY_TYPE_ENC                (1 << 0)    /* encryption key */
+#define SMP_SEC_KEY_TYPE_ID                 (1 << 1)    /* identity key */
+#define SMP_SEC_KEY_TYPE_CSRK               (1 << 2)    /* slave CSRK */
+#define SMP_SEC_KEY_TYPE_LK                 (1 << 3)    /* BR/EDR link key */
+typedef UINT8 tSMP_KEYS;
+
+#define SMP_BR_SEC_DEFAULT_KEY   (SMP_SEC_KEY_TYPE_ENC | SMP_SEC_KEY_TYPE_ID | \
+                                  SMP_SEC_KEY_TYPE_CSRK)
+
+/* default security key distribution value */
+#define SMP_SEC_DEFAULT_KEY      (SMP_SEC_KEY_TYPE_ENC | SMP_SEC_KEY_TYPE_ID | \
+                                  SMP_SEC_KEY_TYPE_CSRK | SMP_SEC_KEY_TYPE_LK)
+
+#define SMP_SC_KEY_STARTED      0   /* passkey entry started */
+#define SMP_SC_KEY_ENTERED      1   /* passkey digit entered */
+#define SMP_SC_KEY_ERASED       2   /* passkey digit erased */
+#define SMP_SC_KEY_CLEARED      3   /* passkey cleared */
+#define SMP_SC_KEY_COMPLT       4   /* passkey entry completed */
+#define SMP_SC_KEY_OUT_OF_RANGE 5   /* out of range */
+typedef UINT8 tSMP_SC_KEY_TYPE;
+
+/* data type for BTM_SP_IO_REQ_EVT */
+typedef struct
+{
+    tSMP_IO_CAP     io_cap;         /* local IO capabilities */
+    tSMP_OOB_FLAG   oob_data;       /* OOB data present (locally) for the peer device */
+    tSMP_AUTH_REQ   auth_req;       /* Authentication required (for local device) */
+    UINT8           max_key_size;   /* max encryption key size */
+    tSMP_KEYS       init_keys;      /* initiator keys to be distributed */
+    tSMP_KEYS       resp_keys;      /* responder keys */
+} tSMP_IO_REQ;
+
+typedef struct
+{
+    tSMP_STATUS reason;
+    tSMP_SEC_LEVEL sec_level;
+    BOOLEAN is_pair_cancel;
+    BOOLEAN smp_over_br;
+} tSMP_CMPL;
+
+typedef struct
+{
+    BT_OCTET32  x;
+    BT_OCTET32  y;
+} tSMP_PUBLIC_KEY;
+
+/* the data associated with the info sent to the peer via OOB interface */
+typedef struct
+{
+    BOOLEAN         present;
+    BT_OCTET16      randomizer;
+    BT_OCTET16      commitment;
+
+    tBLE_BD_ADDR    addr_sent_to;
+    BT_OCTET32      private_key_used;   /* is used to calculate: */
+                    /* publ_key_used = P-256(private_key_used, curve_p256.G) - send it to the */
+                    /* other side */
+                    /* dhkey = P-256(private_key_used, publ key rcvd from the other side) */
+    tSMP_PUBLIC_KEY publ_key_used; /* P-256(private_key_used, curve_p256.G) */
+} tSMP_LOC_OOB_DATA;
+
+/* the data associated with the info received from the peer via OOB interface */
+typedef struct
+{
+    BOOLEAN         present;
+    BT_OCTET16      randomizer;
+    BT_OCTET16      commitment;
+    tBLE_BD_ADDR    addr_rcvd_from;
+} tSMP_PEER_OOB_DATA;
+
+typedef struct
+{
+    tSMP_LOC_OOB_DATA   loc_oob_data;
+    tSMP_PEER_OOB_DATA  peer_oob_data;
+} tSMP_SC_OOB_DATA;
+
+
+typedef union
+{
+    UINT32          passkey;
+    tSMP_IO_REQ     io_req;     /* IO request */
+    tSMP_CMPL       cmplt;
+    tSMP_OOB_DATA_TYPE  req_oob_type;
+    tSMP_LOC_OOB_DATA   loc_oob_data;
+}tSMP_EVT_DATA;
+
+
+/* AES Encryption output */
+typedef struct
+{
+    UINT8   status;
+    UINT8   param_len;
+    UINT16  opcode;
+    UINT8   param_buf[BT_OCTET16_LEN];
+} tSMP_ENC;
+
+/* Security Manager events - Called by the stack when Security Manager related events occur.*/
+typedef UINT8 (tSMP_CALLBACK) (tSMP_EVT event, BD_ADDR bd_addr, tSMP_EVT_DATA *p_data);
+
+/* callback function for CMAC algorithm
+*/
+typedef void (tCMAC_CMPL_CBACK)(UINT8 *p_mac, UINT16 tlen, UINT32 sign_counter);
+
+/*****************************************************************************
+**  External Function Declarations
+*****************************************************************************/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+/* API of SMP */
+
+/*******************************************************************************
+**
+** Function         SMP_Init
+**
+** Description      This function initializes the SMP unit.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern void SMP_Init(void);
+
+/*******************************************************************************
+**
+** Function         SMP_SetTraceLevel
+**
+** Description      This function sets the trace level for SMP.  If called with
+**                  a value of 0xFF, it simply returns the current trace level.
+**
+** Returns          The new or current trace level
+**
+*******************************************************************************/
+extern UINT8 SMP_SetTraceLevel (UINT8 new_level);
+
+/*******************************************************************************
+**
+** Function         SMP_Register
+**
+** Description      This function register for the SMP service callback.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern BOOLEAN SMP_Register (tSMP_CALLBACK *p_cback);
+
+/*******************************************************************************
+**
+** Function         SMP_Pair
+**
+** Description      This function is called to start a SMP pairing.
+**
+** Returns          SMP_STARTED if bond started, else otherwise exception.
+**
+*******************************************************************************/
+extern tSMP_STATUS SMP_Pair (BD_ADDR bd_addr);
+
+/*******************************************************************************
+**
+** Function         SMP_BR_PairWith
+**
+** Description      This function is called to start a SMP pairing over BR/EDR.
+**
+** Returns          SMP_STARTED if pairing started, otherwise reason for failure.
+**
+*******************************************************************************/
+extern tSMP_STATUS SMP_BR_PairWith (BD_ADDR bd_addr);
+
+/*******************************************************************************
+**
+** Function         SMP_PairCancel
+**
+** Description      This function is called to cancel a SMP pairing.
+**
+** Returns          TRUE - pairing cancelled
+**
+*******************************************************************************/
+extern  BOOLEAN SMP_PairCancel (BD_ADDR bd_addr);
+
+/*******************************************************************************
+**
+** Function         SMP_SecurityGrant
+**
+** Description      This function is called to grant security process.
+**
+** Parameters       bd_addr - peer device bd address.
+**                  res     - result of the operation SMP_SUCCESS if success.
+**                            Otherwise, SMP_REPEATED_ATTEMPTS is too many attempts.
+**
+** Returns          None
+**
+*******************************************************************************/
+extern void SMP_SecurityGrant(BD_ADDR bd_addr, UINT8 res);
+
+/*******************************************************************************
+**
+** Function         SMP_PasskeyReply
+**
+** Description      This function is called after Security Manager submitted
+**                  Passkey request to the application.
+**
+** Parameters:      bd_addr      - Address of the device for which PIN was requested
+**                  res          - result of the operation SMP_SUCCESS if success
+**                  passkey      - numeric value in the range of
+**                  BTM_MIN_PASSKEY_VAL(0) - BTM_MAX_PASSKEY_VAL(999999(0xF423F)).
+**
+*******************************************************************************/
+extern void SMP_PasskeyReply (BD_ADDR bd_addr, UINT8 res, UINT32 passkey);
+
+/*******************************************************************************
+**
+** Function         SMP_ConfirmReply
+**
+** Description      This function is called after Security Manager submitted
+**                  numeric comparison request to the application.
+**
+** Parameters:      bd_addr      - Address of the device with which numeric
+**                                 comparison was requested
+**                  res          - comparison result SMP_SUCCESS if success
+**
+*******************************************************************************/
+extern void SMP_ConfirmReply (BD_ADDR bd_addr, UINT8 res);
+
+/*******************************************************************************
+**
+** Function         SMP_OobDataReply
+**
+** Description      This function is called to provide the OOB data for
+**                  SMP in response to SMP_OOB_REQ_EVT
+**
+** Parameters:      bd_addr     - Address of the peer device
+**                  res         - result of the operation SMP_SUCCESS if success
+**                  p_data      - SM Randomizer  C.
+**
+*******************************************************************************/
+extern void SMP_OobDataReply(BD_ADDR bd_addr, tSMP_STATUS res, UINT8 len,
+                             UINT8 *p_data);
+
+/*******************************************************************************
+**
+** Function         SMP_SecureConnectionOobDataReply
+**
+** Description      This function is called to provide the SC OOB data for
+**                  SMP in response to SMP_SC_OOB_REQ_EVT
+**
+** Parameters:      p_data      - pointer to the data
+**
+*******************************************************************************/
+extern void SMP_SecureConnectionOobDataReply(UINT8 *p_data);
+
+/*******************************************************************************
+**
+** Function         SMP_Encrypt
+**
+** Description      This function is called to encrypt the data with the specified
+**                  key
+**
+** Parameters:      key                 - Pointer to key key[0] conatins the MSB
+**                  key_len             - key length
+**                  plain_text          - Pointer to data to be encrypted
+**                                        plain_text[0] conatins the MSB
+**                  pt_len              - plain text length
+**                  p_out               - pointer to the encrypted outputs
+**
+**  Returns         Boolean - TRUE: encryption is successful
+*******************************************************************************/
+extern BOOLEAN SMP_Encrypt (UINT8 *key, UINT8 key_len,
+                            UINT8 *plain_text, UINT8 pt_len,
+                            tSMP_ENC *p_out);
+
+/*******************************************************************************
+**
+** Function         SMP_KeypressNotification
+**
+** Description      This function is called to notify SM about Keypress Notification.
+**
+** Parameters:      bd_addr      - Address of the device to send keypress
+**                                 notification to
+**                  value        - keypress notification parameter value
+**
+*******************************************************************************/
+extern void SMP_KeypressNotification (BD_ADDR bd_addr, UINT8 value);
+
+/*******************************************************************************
+**
+** Function         SMP_CreateLocalSecureConnectionsOobData
+**
+** Description      This function is called to start creation of local SC OOB
+**                  data set (tSMP_LOC_OOB_DATA).
+**
+** Parameters:      bd_addr      - Address of the device to send OOB data block
+**                                 to.
+**
+**  Returns         Boolean - TRUE: creation of local SC OOB data set started.
+*******************************************************************************/
+extern BOOLEAN SMP_CreateLocalSecureConnectionsOobData (
+                                                                  tBLE_BD_ADDR *addr_to_send_to);
+
+#ifdef __cplusplus
+}
+#endif
+#endif /* SMP_API_H */
diff --git a/rtkbt/code/bt/stack/include/srvc_api.h b/rtkbt/code/bt/stack/include/srvc_api.h
new file mode 100755
index 0000000..09c5b3e
--- /dev/null
+++ b/rtkbt/code/bt/stack/include/srvc_api.h
@@ -0,0 +1,217 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2013 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#ifndef SRVC_DIS_API_H
+#define SRVC_DIS_API_H
+
+#include "bt_target.h"
+#include "gatt_api.h"
+#include "gattdefs.h"
+
+#define DIS_SUCCESS             GATT_SUCCESS
+#define DIS_ILLEGAL_PARAM       GATT_ILLEGAL_PARAMETER
+#define DIS_NO_RESOURCES        GATT_NO_RESOURCES
+typedef UINT8 tDIS_STATUS;
+
+
+/*****************************************************************************
+**  Data structure for DIS
+*****************************************************************************/
+
+#define DIS_ATTR_SYS_ID_BIT         0x0001
+#define DIS_ATTR_MODEL_NUM_BIT      0x0002
+#define DIS_ATTR_SERIAL_NUM_BIT     0x0004
+#define DIS_ATTR_FW_NUM_BIT         0x0008
+#define DIS_ATTR_HW_NUM_BIT         0x0010
+#define DIS_ATTR_SW_NUM_BIT         0x0020
+#define DIS_ATTR_MANU_NAME_BIT      0x0040
+#define DIS_ATTR_IEEE_DATA_BIT      0x0080
+#define DIS_ATTR_PNP_ID_BIT         0x0100
+typedef UINT16  tDIS_ATTR_MASK;
+
+#define DIS_ATTR_ALL_MASK           0xffff
+
+typedef tDIS_ATTR_MASK tDIS_ATTR_BIT ;
+
+typedef struct
+{
+    UINT16      len;
+    UINT8       *p_data;
+}tDIS_STRING;
+
+typedef struct
+{
+    UINT16       vendor_id;
+    UINT16       product_id;
+    UINT16       product_version;
+    UINT8        vendor_id_src;
+
+}tDIS_PNP_ID;
+
+typedef union
+{
+    UINT64              system_id;
+    tDIS_PNP_ID         pnp_id;
+    tDIS_STRING         data_str;
+}tDIS_ATTR;
+
+#define DIS_MAX_STRING_DATA     7
+
+typedef struct
+{
+    UINT16                  attr_mask;
+    UINT64                  system_id;
+    tDIS_PNP_ID             pnp_id;
+    UINT8                   *data_string[DIS_MAX_STRING_DATA];
+}tDIS_VALUE;
+
+
+typedef void (tDIS_READ_CBACK)(BD_ADDR addr, tDIS_VALUE *p_dis_value);
+
+/*****************************************************************************
+**  Data structure used by Battery Service
+*****************************************************************************/
+typedef struct
+{
+    BD_ADDR remote_bda;
+    BOOLEAN need_rsp;
+    UINT16  clt_cfg;
+}tBA_WRITE_DATA;
+
+#define BA_READ_CLT_CFG_REQ     1
+#define BA_READ_PRE_FMT_REQ     2
+#define BA_READ_RPT_REF_REQ     3
+#define BA_READ_LEVEL_REQ       4
+#define BA_WRITE_CLT_CFG_REQ    5
+
+typedef void (tBA_CBACK)(UINT8 app_id, UINT8 event, tBA_WRITE_DATA *p_data);
+
+#define BA_LEVEL_NOTIFY         0x01
+#define BA_LEVEL_PRE_FMT        0x02
+#define BA_LEVEL_RPT_REF        0x04
+typedef UINT8   tBA_LEVEL_DESCR;
+
+typedef struct
+{
+    BOOLEAN         is_pri;
+    tBA_LEVEL_DESCR     ba_level_descr;
+    tGATT_TRANSPORT transport;
+    tBA_CBACK       *p_cback;
+
+}tBA_REG_INFO;
+
+typedef union
+{
+    UINT8       ba_level;
+    UINT16      clt_cfg;
+    tGATT_CHAR_RPT_REF  rpt_ref;
+    tGATT_CHAR_PRES     pres_fmt;
+}tBA_RSP_DATA;
+
+/*****************************************************************************
+**  External Function Declarations
+*****************************************************************************/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+/*****************************************************************************
+**  Service Engine API
+*****************************************************************************/
+/*******************************************************************************
+**
+** Function         srvc_eng_init
+**
+** Description      Initializa the GATT Service engine, register a GATT application
+**                  as for a central service management.
+**
+*******************************************************************************/
+extern tGATT_STATUS srvc_eng_init (void);
+
+
+/*****************************************************************************
+**  DIS Server Function
+*****************************************************************************/
+
+/*******************************************************************************
+**
+** Function         DIS_SrInit
+**
+** Description      Initializa the Device Information Service Server.
+**
+*******************************************************************************/
+extern tDIS_STATUS DIS_SrInit (tDIS_ATTR_MASK dis_attr_mask);
+/*******************************************************************************
+**
+** Function         DIS_SrUpdate
+**
+** Description      Update the DIS server attribute values
+**
+*******************************************************************************/
+extern tDIS_STATUS DIS_SrUpdate(tDIS_ATTR_BIT dis_attr_bit, tDIS_ATTR *p_info);
+/*****************************************************************************
+**  DIS Client Function
+*****************************************************************************/
+/*******************************************************************************
+**
+** Function         DIS_ReadDISInfo
+**
+** Description      Read remote device DIS information.
+**
+** Returns          void
+**
+*******************************************************************************/
+extern BOOLEAN DIS_ReadDISInfo(BD_ADDR peer_bda, tDIS_READ_CBACK *p_cback,
+                               tDIS_ATTR_MASK mask);
+
+/*******************************************************************************
+**      BATTERY SERVICE API
+*******************************************************************************/
+/*******************************************************************************
+**
+** Function         Battery_Instantiate
+**
+** Description      Instantiate a Battery service
+**
+*******************************************************************************/
+extern UINT16 Battery_Instantiate (UINT8 app_id, tBA_REG_INFO *p_reg_info);
+
+/*******************************************************************************
+**
+** Function         Battery_Rsp
+**
+** Description      Respond to a battery service request
+**
+*******************************************************************************/
+extern void Battery_Rsp (UINT8 app_id, tGATT_STATUS st, UINT8 event, tBA_RSP_DATA *p_rsp);
+/*******************************************************************************
+**
+** Function         Battery_Notify
+**
+** Description      Send battery level notification
+**
+*******************************************************************************/
+extern void Battery_Notify (UINT8 app_id, BD_ADDR remote_bda, UINT8 battery_level);
+
+
+#ifdef __cplusplus
+
+}
+#endif
+
+#endif
diff --git a/rtkbt/code/bt/stack/l2cap/l2c_api.c b/rtkbt/code/bt/stack/l2cap/l2c_api.c
new file mode 100755
index 0000000..62012c6
--- /dev/null
+++ b/rtkbt/code/bt/stack/l2cap/l2c_api.c
@@ -0,0 +1,2306 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains the L2CAP API code
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_l2cap"
+
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "bt_types.h"
+#include "btm_api.h"
+#include "btu.h"
+#include "bt_common.h"
+#include "hcidefs.h"
+#include "hcimsgs.h"
+#include "l2c_int.h"
+#include "l2cdefs.h"
+#include "osi/include/allocator.h"
+#include "osi/include/log.h"
+
+
+extern fixed_queue_t *btu_general_alarm_queue;
+
+/*******************************************************************************
+**
+** Function         L2CA_Register
+**
+** Description      Other layers call this function to register for L2CAP
+**                  services.
+**
+** Returns          PSM to use or zero if error. Typically, the PSM returned
+**                  is the same as was passed in, but for an outgoing-only
+**                  connection to a dynamic PSM, a "virtual" PSM is returned
+**                  and should be used in the calls to L2CA_ConnectReq(),
+**                  L2CA_ErtmConnectReq() and L2CA_Deregister()
+**
+*******************************************************************************/
+UINT16 L2CA_Register (UINT16 psm, tL2CAP_APPL_INFO *p_cb_info)
+{
+    tL2C_RCB    *p_rcb;
+    UINT16      vpsm = psm;
+
+    L2CAP_TRACE_API ("L2CAP - L2CA_Register() called for PSM: 0x%04x", psm);
+
+    /* Verify that the required callback info has been filled in
+    **      Note:  Connection callbacks are required but not checked
+    **             for here because it is possible to be only a client
+    **             or only a server.
+    */
+    if ((!p_cb_info->pL2CA_ConfigCfm_Cb)
+     || (!p_cb_info->pL2CA_ConfigInd_Cb)
+     || (!p_cb_info->pL2CA_DataInd_Cb)
+     || (!p_cb_info->pL2CA_DisconnectInd_Cb))
+    {
+        L2CAP_TRACE_ERROR ("L2CAP - no cb registering PSM: 0x%04x", psm);
+        return (0);
+    }
+
+    /* Verify PSM is valid */
+    if (L2C_INVALID_PSM(psm))
+    {
+        L2CAP_TRACE_ERROR ("L2CAP - invalid PSM value, PSM: 0x%04x", psm);
+        return (0);
+    }
+
+    /* Check if this is a registration for an outgoing-only connection to */
+    /* a dynamic PSM. If so, allocate a "virtual" PSM for the app to use. */
+    if ( (psm >= 0x1001) && (p_cb_info->pL2CA_ConnectInd_Cb == NULL) )
+    {
+        for (vpsm = 0x1002; vpsm < 0x8000; vpsm += 2)
+        {
+            if ((p_rcb = l2cu_find_rcb_by_psm (vpsm)) == NULL)
+                break;
+        }
+
+        L2CAP_TRACE_API ("L2CA_Register - Real PSM: 0x%04x  Virtual PSM: 0x%04x", psm, vpsm);
+    }
+
+    /* If registration block already there, just overwrite it */
+    if ((p_rcb = l2cu_find_rcb_by_psm (vpsm)) == NULL)
+    {
+        if ((p_rcb = l2cu_allocate_rcb (vpsm)) == NULL)
+        {
+            L2CAP_TRACE_WARNING ("L2CAP - no RCB available, PSM: 0x%04x  vPSM: 0x%04x", psm, vpsm);
+            return (0);
+        }
+    }
+
+    p_rcb->api      = *p_cb_info;
+    p_rcb->real_psm = psm;
+
+    return (vpsm);
+}
+
+/*******************************************************************************
+**
+** Function         L2CA_Deregister
+**
+** Description      Other layers call this function to de-register for L2CAP
+**                  services.
+**
+** Returns          void
+**
+*******************************************************************************/
+void L2CA_Deregister (UINT16 psm)
+{
+    tL2C_RCB    *p_rcb;
+    tL2C_CCB    *p_ccb;
+    tL2C_LCB    *p_lcb;
+    int         ii;
+
+    L2CAP_TRACE_API ("L2CAP - L2CA_Deregister() called for PSM: 0x%04x", psm);
+
+    if ((p_rcb = l2cu_find_rcb_by_psm (psm)) != NULL)
+    {
+        p_lcb = &l2cb.lcb_pool[0];
+        for (ii = 0; ii < MAX_L2CAP_LINKS; ii++, p_lcb++)
+        {
+            if (p_lcb->in_use)
+            {
+                if (((p_ccb = p_lcb->ccb_queue.p_first_ccb) == NULL)
+                 || (p_lcb->link_state == LST_DISCONNECTING))
+                    continue;
+
+                if ((p_ccb->in_use) &&
+                    ((p_ccb->chnl_state == CST_W4_L2CAP_DISCONNECT_RSP) ||
+                     (p_ccb->chnl_state == CST_W4_L2CA_DISCONNECT_RSP)))
+                    continue;
+
+                if (p_ccb->p_rcb == p_rcb)
+                    l2c_csm_execute (p_ccb, L2CEVT_L2CA_DISCONNECT_REQ, NULL);
+            }
+        }
+        l2cu_release_rcb (p_rcb);
+    }
+    else
+    {
+        L2CAP_TRACE_WARNING ("L2CAP - PSM: 0x%04x not found for deregistration", psm);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         L2CA_AllocatePSM
+**
+** Description      Other layers call this function to find an unused PSM for L2CAP
+**                  services.
+**
+** Returns          PSM to use.
+**
+*******************************************************************************/
+UINT16 L2CA_AllocatePSM(void)
+{
+    BOOLEAN done = FALSE;
+    UINT16 psm = l2cb.dyn_psm;
+
+    L2CAP_TRACE_API( "L2CA_AllocatePSM");
+    while (!done)
+    {
+        psm += 2;
+        if (psm > 0xfeff)
+        {
+            psm = 0x1001;
+        }
+        else if (psm & 0x0100)
+        {
+            /* the upper byte must be even */
+            psm += 0x0100;
+        }
+
+        /* if psm is in range of reserved BRCM Aware features */
+        if ((BRCM_RESERVED_PSM_START <= psm)&&(psm <= BRCM_RESERVED_PSM_END))
+            continue;
+
+        /* make sure the newlly allocated psm is not used right now */
+        if ((l2cu_find_rcb_by_psm (psm)) == NULL)
+            done = TRUE;
+    }
+    l2cb.dyn_psm = psm;
+
+    return(psm);
+}
+
+/*******************************************************************************
+**
+** Function         L2CA_ConnectReq
+**
+** Description      Higher layers call this function to create an L2CAP connection.
+**                  Note that the connection is not established at this time, but
+**                  connection establishment gets started. The callback function
+**                  will be invoked when connection establishes or fails.
+**
+** Returns          the CID of the connection, or 0 if it failed to start
+**
+*******************************************************************************/
+UINT16 L2CA_ConnectReq (UINT16 psm, BD_ADDR p_bd_addr)
+{
+    return L2CA_ErtmConnectReq (psm, p_bd_addr, NULL);
+}
+
+/*******************************************************************************
+**
+** Function         L2CA_ErtmConnectReq
+**
+** Description      Higher layers call this function to create an L2CAP connection.
+**                  Note that the connection is not established at this time, but
+**                  connection establishment gets started. The callback function
+**                  will be invoked when connection establishes or fails.
+**
+**  Parameters:       PSM: L2CAP PSM for the connection
+**                    BD address of the peer
+**                   Enhaced retransmission mode configurations
+
+** Returns          the CID of the connection, or 0 if it failed to start
+**
+*******************************************************************************/
+UINT16 L2CA_ErtmConnectReq (UINT16 psm, BD_ADDR p_bd_addr, tL2CAP_ERTM_INFO *p_ertm_info)
+{
+    tL2C_LCB        *p_lcb;
+    tL2C_CCB        *p_ccb;
+    tL2C_RCB        *p_rcb;
+
+    L2CAP_TRACE_API ("L2CA_ErtmConnectReq()  PSM: 0x%04x  BDA: %08x%04x  p_ertm_info: 0x%08x allowed:0x%x preferred:%d", psm,
+                      (p_bd_addr[0]<<24)+(p_bd_addr[1]<<16)+(p_bd_addr[2]<<8)+p_bd_addr[3],
+                      (p_bd_addr[4]<<8)+p_bd_addr[5], p_ertm_info,
+                      (p_ertm_info) ? p_ertm_info->allowed_modes : 0,
+                      (p_ertm_info) ? p_ertm_info->preferred_mode : 0);
+
+    /* Fail if we have not established communications with the controller */
+    if (!BTM_IsDeviceUp())
+    {
+        L2CAP_TRACE_WARNING ("L2CAP connect req - BTU not ready");
+        return (0);
+    }
+    /* Fail if the PSM is not registered */
+    if ((p_rcb = l2cu_find_rcb_by_psm (psm)) == NULL)
+    {
+        L2CAP_TRACE_WARNING ("L2CAP - no RCB for L2CA_conn_req, PSM: 0x%04x", psm);
+        return (0);
+    }
+
+    /* First, see if we already have a link to the remote */
+    /* assume all ERTM l2cap connection is going over BR/EDR for now */
+    if ((p_lcb = l2cu_find_lcb_by_bd_addr (p_bd_addr, BT_TRANSPORT_BR_EDR)) == NULL)
+    {
+        /* No link. Get an LCB and start link establishment */
+        if ( ((p_lcb = l2cu_allocate_lcb (p_bd_addr, FALSE, BT_TRANSPORT_BR_EDR)) == NULL)
+             /* currently use BR/EDR for ERTM mode l2cap connection */
+         ||  (l2cu_create_conn(p_lcb, BT_TRANSPORT_BR_EDR) == FALSE) )
+        {
+            L2CAP_TRACE_WARNING ("L2CAP - conn not started for PSM: 0x%04x  p_lcb: 0x%08x", psm, p_lcb);
+            return (0);
+        }
+    }
+
+    /* Allocate a channel control block */
+    if ((p_ccb = l2cu_allocate_ccb (p_lcb, 0)) == NULL)
+    {
+        L2CAP_TRACE_WARNING ("L2CAP - no CCB for L2CA_conn_req, PSM: 0x%04x", psm);
+        return (0);
+    }
+
+    /* Save registration info */
+    p_ccb->p_rcb = p_rcb;
+
+    if (p_ertm_info)
+    {
+        p_ccb->ertm_info  = *p_ertm_info;
+
+        /* Replace default indicators with the actual default pool */
+        if (p_ccb->ertm_info.fcr_rx_buf_size == L2CAP_INVALID_ERM_BUF_SIZE)
+            p_ccb->ertm_info.fcr_rx_buf_size = L2CAP_FCR_RX_BUF_SIZE;
+
+        if (p_ccb->ertm_info.fcr_tx_buf_size == L2CAP_INVALID_ERM_BUF_SIZE)
+            p_ccb->ertm_info.fcr_tx_buf_size = L2CAP_FCR_TX_BUF_SIZE;
+
+        if (p_ccb->ertm_info.user_rx_buf_size == L2CAP_INVALID_ERM_BUF_SIZE)
+            p_ccb->ertm_info.user_rx_buf_size = L2CAP_USER_RX_BUF_SIZE;
+
+        if (p_ccb->ertm_info.user_tx_buf_size == L2CAP_INVALID_ERM_BUF_SIZE)
+            p_ccb->ertm_info.user_tx_buf_size = L2CAP_USER_TX_BUF_SIZE;
+
+        p_ccb->max_rx_mtu = p_ertm_info->user_rx_buf_size -
+            (L2CAP_MIN_OFFSET + L2CAP_SDU_LEN_OFFSET + L2CAP_FCS_LEN);
+    }
+
+    /* If link is up, start the L2CAP connection */
+    if (p_lcb->link_state == LST_CONNECTED)
+    {
+        l2c_csm_execute (p_ccb, L2CEVT_L2CA_CONNECT_REQ, NULL);
+    }
+
+    /* If link is disconnecting, save link info to retry after disconnect
+     * Possible Race condition when a reconnect occurs
+     * on the channel during a disconnect of link. This
+     * ccb will be automatically retried after link disconnect
+     * arrives
+     */
+    else if (p_lcb->link_state == LST_DISCONNECTING)
+    {
+        L2CAP_TRACE_DEBUG ("L2CAP API - link disconnecting: RETRY LATER");
+
+        /* Save ccb so it can be started after disconnect is finished */
+        p_lcb->p_pending_ccb = p_ccb;
+    }
+
+    L2CAP_TRACE_API ("L2CAP - L2CA_conn_req(psm: 0x%04x) returned CID: 0x%04x", psm, p_ccb->local_cid);
+
+    /* Return the local CID as our handle */
+    return (p_ccb->local_cid);
+}
+
+/*******************************************************************************
+**
+** Function         L2CA_RegisterLECoc
+**
+** Description      Other layers call this function to register for L2CAP
+**                  Connection Oriented Channel.
+**
+** Returns          PSM to use or zero if error. Typically, the PSM returned
+**                  is the same as was passed in, but for an outgoing-only
+**                  connection to a dynamic PSM, a "virtual" PSM is returned
+**                  and should be used in the calls to L2CA_ConnectLECocReq()
+**                  and L2CA_DeregisterLECoc()
+**
+*******************************************************************************/
+UINT16 L2CA_RegisterLECoc(UINT16 psm, tL2CAP_APPL_INFO *p_cb_info)
+{
+    L2CAP_TRACE_API("%s called for LE PSM: 0x%04x", __func__, psm);
+
+    /* Verify that the required callback info has been filled in
+    **      Note:  Connection callbacks are required but not checked
+    **             for here because it is possible to be only a client
+    **             or only a server.
+    */
+    if ((!p_cb_info->pL2CA_DataInd_Cb)
+     || (!p_cb_info->pL2CA_DisconnectInd_Cb))
+    {
+        L2CAP_TRACE_ERROR("%s No cb registering BLE PSM: 0x%04x", __func__, psm);
+        return 0;
+    }
+
+    /* Verify PSM is valid */
+    if (!L2C_IS_VALID_LE_PSM(psm))
+    {
+        L2CAP_TRACE_ERROR("%s Invalid BLE PSM value, PSM: 0x%04x", __func__, psm);
+        return 0;
+    }
+
+    tL2C_RCB    *p_rcb;
+    UINT16      vpsm = psm;
+
+    /* Check if this is a registration for an outgoing-only connection to */
+    /* a dynamic PSM. If so, allocate a "virtual" PSM for the app to use. */
+    if ((psm >= 0x0080) && (p_cb_info->pL2CA_ConnectInd_Cb == NULL))
+    {
+        for (vpsm = 0x0080; vpsm < 0x0100; vpsm++)
+        {
+            p_rcb = l2cu_find_ble_rcb_by_psm(vpsm);
+            if (p_rcb == NULL)
+                break;
+        }
+
+        L2CAP_TRACE_API("%s Real PSM: 0x%04x  Virtual PSM: 0x%04x", __func__, psm, vpsm);
+    }
+
+    /* If registration block already there, just overwrite it */
+    p_rcb = l2cu_find_ble_rcb_by_psm(vpsm);
+    if (p_rcb == NULL)
+    {
+        p_rcb = l2cu_allocate_ble_rcb(vpsm);
+        if (p_rcb == NULL)
+        {
+            L2CAP_TRACE_WARNING("%s No BLE RCB available, PSM: 0x%04x  vPSM: 0x%04x",
+                  __func__, psm, vpsm);
+            return 0;
+        }
+    }
+
+    p_rcb->api      = *p_cb_info;
+    p_rcb->real_psm = psm;
+
+    return vpsm;
+}
+
+/*******************************************************************************
+**
+** Function         L2CA_DeregisterLECoc
+**
+** Description      Other layers call this function to de-register for L2CAP
+**                  Connection Oriented Channel.
+**
+** Returns          void
+**
+*******************************************************************************/
+void L2CA_DeregisterLECoc(UINT16 psm)
+{
+    L2CAP_TRACE_API("%s called for PSM: 0x%04x", __func__, psm);
+
+    tL2C_RCB *p_rcb = l2cu_find_ble_rcb_by_psm(psm);
+    if (p_rcb == NULL)
+    {
+        L2CAP_TRACE_WARNING("%s PSM: 0x%04x not found for deregistration", psm);
+        return;
+    }
+
+    tL2C_LCB *p_lcb = &l2cb.lcb_pool[0];
+    for (int i = 0; i < MAX_L2CAP_LINKS; i++, p_lcb++)
+    {
+        if (!p_lcb->in_use || p_lcb->transport != BT_TRANSPORT_LE)
+            continue;
+
+        tL2C_CCB *p_ccb = p_lcb->ccb_queue.p_first_ccb;
+        if ((p_ccb == NULL) || (p_lcb->link_state == LST_DISCONNECTING))
+            continue;
+
+        if (p_ccb->in_use &&
+           (p_ccb->chnl_state == CST_W4_L2CAP_DISCONNECT_RSP ||
+            p_ccb->chnl_state == CST_W4_L2CA_DISCONNECT_RSP))
+            continue;
+
+        if (p_ccb->p_rcb == p_rcb)
+            l2c_csm_execute(p_ccb, L2CEVT_L2CA_DISCONNECT_REQ, NULL);
+    }
+
+    l2cu_release_rcb (p_rcb);
+}
+
+/*******************************************************************************
+**
+** Function         L2CA_ConnectLECocReq
+**
+** Description      Higher layers call this function to create an L2CAP connection.
+**                  Note that the connection is not established at this time, but
+**                  connection establishment gets started. The callback function
+**                  will be invoked when connection establishes or fails.
+**
+**  Parameters:     PSM: L2CAP PSM for the connection
+**                  BD address of the peer
+**                  Local Coc configurations
+
+** Returns          the CID of the connection, or 0 if it failed to start
+**
+*******************************************************************************/
+UINT16 L2CA_ConnectLECocReq(UINT16 psm, BD_ADDR p_bd_addr, tL2CAP_LE_CFG_INFO *p_cfg)
+{
+    L2CAP_TRACE_API("%s PSM: 0x%04x BDA: %02x:%02x:%02x:%02x:%02x:%02x", __func__, psm,
+        p_bd_addr[0], p_bd_addr[1], p_bd_addr[2], p_bd_addr[3], p_bd_addr[4], p_bd_addr[5]);
+
+    /* Fail if we have not established communications with the controller */
+    if (!BTM_IsDeviceUp())
+    {
+        L2CAP_TRACE_WARNING("%s BTU not ready", __func__);
+        return 0;
+    }
+
+    /* Fail if the PSM is not registered */
+    tL2C_RCB *p_rcb = l2cu_find_ble_rcb_by_psm(psm);
+    if (p_rcb == NULL)
+    {
+        L2CAP_TRACE_WARNING("%s No BLE RCB, PSM: 0x%04x", __func__, psm);
+        return 0;
+    }
+
+    /* First, see if we already have a le link to the remote */
+    tL2C_LCB *p_lcb = l2cu_find_lcb_by_bd_addr(p_bd_addr, BT_TRANSPORT_LE);
+    if (p_lcb == NULL)
+    {
+        /* No link. Get an LCB and start link establishment */
+        p_lcb = l2cu_allocate_lcb(p_bd_addr, FALSE, BT_TRANSPORT_LE);
+        if ((p_lcb == NULL)
+             /* currently use BR/EDR for ERTM mode l2cap connection */
+         || (l2cu_create_conn(p_lcb, BT_TRANSPORT_LE) == FALSE) )
+        {
+            L2CAP_TRACE_WARNING("%s conn not started for PSM: 0x%04x  p_lcb: 0x%08x",
+                __func__, psm, p_lcb);
+            return 0;
+        }
+    }
+
+    /* Allocate a channel control block */
+    tL2C_CCB *p_ccb = l2cu_allocate_ccb(p_lcb, 0);
+    if (p_ccb == NULL)
+    {
+        L2CAP_TRACE_WARNING("%s no CCB, PSM: 0x%04x", __func__, psm);
+        return 0;
+    }
+
+    /* Save registration info */
+    p_ccb->p_rcb = p_rcb;
+
+    /* Save the configuration */
+    if (p_cfg)
+        memcpy(&p_ccb->local_conn_cfg, p_cfg, sizeof(tL2CAP_LE_CFG_INFO));
+
+    /* If link is up, start the L2CAP connection */
+    if (p_lcb->link_state == LST_CONNECTED)
+    {
+        if (p_ccb->p_lcb->transport == BT_TRANSPORT_LE)
+        {
+            L2CAP_TRACE_DEBUG("%s LE Link is up", __func__);
+            l2c_csm_execute(p_ccb, L2CEVT_L2CA_CONNECT_REQ, NULL);
+        }
+    }
+
+    /* If link is disconnecting, save link info to retry after disconnect
+     * Possible Race condition when a reconnect occurs
+     * on the channel during a disconnect of link. This
+     * ccb will be automatically retried after link disconnect
+     * arrives
+     */
+    else if (p_lcb->link_state == LST_DISCONNECTING)
+    {
+        L2CAP_TRACE_DEBUG("%s link disconnecting: RETRY LATER", __func__);
+
+        /* Save ccb so it can be started after disconnect is finished */
+        p_lcb->p_pending_ccb = p_ccb;
+    }
+
+    L2CAP_TRACE_API("%s(psm: 0x%04x) returned CID: 0x%04x", __func__, psm, p_ccb->local_cid);
+
+    /* Return the local CID as our handle */
+    return p_ccb->local_cid;
+}
+
+/*******************************************************************************
+**
+** Function         L2CA_ConnectLECocRsp
+**
+** Description      Higher layers call this function to accept an incoming
+**                  L2CAP COC connection, for which they had gotten an connect
+**                  indication callback.
+**
+** Returns          TRUE for success, FALSE for failure
+**
+*******************************************************************************/
+BOOLEAN L2CA_ConnectLECocRsp (BD_ADDR p_bd_addr, UINT8 id, UINT16 lcid, UINT16 result,
+                             UINT16 status, tL2CAP_LE_CFG_INFO *p_cfg)
+{
+    L2CAP_TRACE_API("%s CID: 0x%04x Result: %d Status: %d BDA: %02x:%02x:%02x:%02x:%02x:%02x",
+        __func__, lcid, result, status,
+        p_bd_addr[0], p_bd_addr[1], p_bd_addr[2], p_bd_addr[3], p_bd_addr[4], p_bd_addr[5]);
+
+
+    /* First, find the link control block */
+    tL2C_LCB *p_lcb = l2cu_find_lcb_by_bd_addr(p_bd_addr, BT_TRANSPORT_LE);
+    if (p_lcb == NULL)
+    {
+        /* No link. Get an LCB and start link establishment */
+        L2CAP_TRACE_WARNING("%s no LCB", __func__);
+        return FALSE;
+    }
+
+    /* Now, find the channel control block */
+    tL2C_CCB *p_ccb = l2cu_find_ccb_by_cid(p_lcb, lcid);
+    if (p_ccb == NULL)
+    {
+        L2CAP_TRACE_WARNING("%s no CCB", __func__);
+        return FALSE;
+    }
+
+    /* The IDs must match */
+    if (p_ccb->remote_id != id)
+    {
+        L2CAP_TRACE_WARNING("%s bad id. Expected: %d  Got: %d", __func__, p_ccb->remote_id, id);
+        return FALSE;
+    }
+
+    if (p_cfg)
+        memcpy(&p_ccb->local_conn_cfg, p_cfg, sizeof(tL2CAP_LE_CFG_INFO));
+
+    if (result == L2CAP_CONN_OK)
+        l2c_csm_execute (p_ccb, L2CEVT_L2CA_CONNECT_RSP, NULL);
+    else
+    {
+        tL2C_CONN_INFO conn_info;
+        memcpy(conn_info.bd_addr, p_bd_addr, BD_ADDR_LEN);
+        conn_info.l2cap_result = result;
+        conn_info.l2cap_status = status;
+        l2c_csm_execute(p_ccb, L2CEVT_L2CA_CONNECT_RSP_NEG, &conn_info);
+    }
+
+    return TRUE;
+}
+
+/*******************************************************************************
+**
+**  Function         L2CA_GetPeerLECocConfig
+**
+**  Description      Get a peers configuration for LE Connection Oriented Channel.
+**
+**  Parameters:      local channel id
+**                   Pointers to peers configuration storage area
+**
+**  Return value:    TRUE if peer is connected
+**
+*******************************************************************************/
+BOOLEAN L2CA_GetPeerLECocConfig (UINT16 lcid, tL2CAP_LE_CFG_INFO* peer_cfg)
+{
+    L2CAP_TRACE_API ("%s CID: 0x%04x", __func__, lcid);
+
+    tL2C_CCB *p_ccb = l2cu_find_ccb_by_cid(NULL, lcid);
+    if (p_ccb == NULL)
+    {
+        L2CAP_TRACE_ERROR("%s No CCB for CID:0x%04x", __func__, lcid);
+        return FALSE;
+    }
+
+    if (peer_cfg != NULL)
+        memcpy(peer_cfg, &p_ccb->peer_conn_cfg, sizeof(tL2CAP_LE_CFG_INFO));
+
+    return TRUE;
+}
+
+bool L2CA_SetConnectionCallbacks(uint16_t local_cid, const tL2CAP_APPL_INFO *callbacks) {
+  assert(callbacks != NULL);
+  assert(callbacks->pL2CA_ConnectInd_Cb == NULL);
+  assert(callbacks->pL2CA_ConnectCfm_Cb != NULL);
+  assert(callbacks->pL2CA_ConfigInd_Cb != NULL);
+  assert(callbacks->pL2CA_ConfigCfm_Cb != NULL);
+  assert(callbacks->pL2CA_DisconnectInd_Cb != NULL);
+  assert(callbacks->pL2CA_DisconnectCfm_Cb != NULL);
+  assert(callbacks->pL2CA_CongestionStatus_Cb != NULL);
+  assert(callbacks->pL2CA_DataInd_Cb != NULL);
+  assert(callbacks->pL2CA_TxComplete_Cb != NULL);
+
+  tL2C_CCB *channel_control_block = l2cu_find_ccb_by_cid(NULL, local_cid);
+  if (!channel_control_block) {
+    LOG_ERROR(LOG_TAG, "%s no channel control block found for L2CAP LCID=0x%04x.", __func__, local_cid);
+    return false;
+  }
+
+  // We're making a connection-specific registration control block so we check if
+  // we already have a private one allocated to us on the heap. If not, we make a
+  // new allocation, mark it as heap-allocated, and inherit the fields from the old
+  // control block.
+  tL2C_RCB *registration_control_block = channel_control_block->p_rcb;
+  if (!channel_control_block->should_free_rcb) {
+    registration_control_block = (tL2C_RCB *)osi_calloc(sizeof(tL2C_RCB));
+
+    *registration_control_block = *channel_control_block->p_rcb;
+    channel_control_block->p_rcb = registration_control_block;
+    channel_control_block->should_free_rcb = true;
+  }
+
+  registration_control_block->api = *callbacks;
+  return true;
+}
+
+/*******************************************************************************
+**
+** Function         L2CA_ConnectRsp
+**
+** Description      Higher layers call this function to accept an incoming
+**                  L2CAP connection, for which they had gotten an connect
+**                  indication callback.
+**
+** Returns          TRUE for success, FALSE for failure
+**
+*******************************************************************************/
+BOOLEAN L2CA_ConnectRsp (BD_ADDR p_bd_addr, UINT8 id, UINT16 lcid,
+                              UINT16 result, UINT16 status)
+{
+    return L2CA_ErtmConnectRsp (p_bd_addr, id, lcid, result, status, NULL);
+}
+
+/*******************************************************************************
+**
+** Function         L2CA_ErtmConnectRsp
+**
+** Description      Higher layers call this function to accept an incoming
+**                  L2CAP connection, for which they had gotten an connect
+**                  indication callback.
+**
+** Returns          TRUE for success, FALSE for failure
+**
+*******************************************************************************/
+BOOLEAN L2CA_ErtmConnectRsp (BD_ADDR p_bd_addr, UINT8 id, UINT16 lcid, UINT16 result,
+                             UINT16 status, tL2CAP_ERTM_INFO *p_ertm_info)
+{
+    tL2C_LCB        *p_lcb;
+    tL2C_CCB        *p_ccb;
+
+    L2CAP_TRACE_API ("L2CA_ErtmConnectRsp()  CID: 0x%04x  Result: %d  Status: %d  BDA: %08x%04x  p_ertm_info:0x%08x",
+                      lcid, result, status,
+                      (p_bd_addr[0]<<24)+(p_bd_addr[1]<<16)+(p_bd_addr[2]<<8)+p_bd_addr[3],
+                      (p_bd_addr[4]<<8)+p_bd_addr[5], p_ertm_info);
+
+    /* First, find the link control block */
+    if ((p_lcb = l2cu_find_lcb_by_bd_addr (p_bd_addr, BT_TRANSPORT_BR_EDR)) == NULL)
+    {
+        /* No link. Get an LCB and start link establishment */
+        L2CAP_TRACE_WARNING ("L2CAP - no LCB for L2CA_conn_rsp");
+        return (FALSE);
+    }
+
+    /* Now, find the channel control block */
+    if ((p_ccb = l2cu_find_ccb_by_cid (p_lcb, lcid)) == NULL)
+    {
+        L2CAP_TRACE_WARNING ("L2CAP - no CCB for L2CA_conn_rsp");
+        return (FALSE);
+    }
+
+    /* The IDs must match */
+    if (p_ccb->remote_id != id)
+    {
+        L2CAP_TRACE_WARNING ("L2CAP - bad id in L2CA_conn_rsp. Exp: %d  Got: %d", p_ccb->remote_id, id);
+        return (FALSE);
+    }
+
+    if (p_ertm_info)
+    {
+        p_ccb->ertm_info  = *p_ertm_info;
+
+        /* Replace default indicators with the actual default pool */
+        if (p_ccb->ertm_info.fcr_rx_buf_size == L2CAP_INVALID_ERM_BUF_SIZE)
+            p_ccb->ertm_info.fcr_rx_buf_size = L2CAP_FCR_RX_BUF_SIZE;
+
+        if (p_ccb->ertm_info.fcr_tx_buf_size == L2CAP_INVALID_ERM_BUF_SIZE)
+            p_ccb->ertm_info.fcr_tx_buf_size = L2CAP_FCR_TX_BUF_SIZE;
+
+        if (p_ccb->ertm_info.user_rx_buf_size == L2CAP_INVALID_ERM_BUF_SIZE)
+            p_ccb->ertm_info.user_rx_buf_size = L2CAP_USER_RX_BUF_SIZE;
+
+        if (p_ccb->ertm_info.user_tx_buf_size == L2CAP_INVALID_ERM_BUF_SIZE)
+            p_ccb->ertm_info.user_tx_buf_size = L2CAP_USER_TX_BUF_SIZE;
+
+        p_ccb->max_rx_mtu = p_ertm_info->user_rx_buf_size -
+            (L2CAP_MIN_OFFSET + L2CAP_SDU_LEN_OFFSET + L2CAP_FCS_LEN);
+    }
+
+    if (result == L2CAP_CONN_OK)
+    {
+        l2c_csm_execute (p_ccb, L2CEVT_L2CA_CONNECT_RSP, NULL);
+    }
+    else
+    {
+        tL2C_CONN_INFO   conn_info;
+
+        conn_info.l2cap_result = result;
+        conn_info.l2cap_status = status;
+
+        if (result == L2CAP_CONN_PENDING)
+            l2c_csm_execute (p_ccb, L2CEVT_L2CA_CONNECT_RSP, &conn_info);
+        else
+            l2c_csm_execute (p_ccb, L2CEVT_L2CA_CONNECT_RSP_NEG, &conn_info);
+    }
+
+    return (TRUE);
+}
+
+/*******************************************************************************
+**
+** Function         L2CA_ConfigReq
+**
+** Description      Higher layers call this function to send configuration.
+**
+**                  Note:  The FCR options of p_cfg are not used.
+**
+** Returns          TRUE if configuration sent, else FALSE
+**
+*******************************************************************************/
+BOOLEAN L2CA_ConfigReq (UINT16 cid, tL2CAP_CFG_INFO *p_cfg)
+{
+    tL2C_CCB        *p_ccb;
+
+    L2CAP_TRACE_API ("L2CA_ConfigReq()  CID 0x%04x: fcr_present:%d (mode %d) mtu_present:%d (%d)",
+        cid, p_cfg->fcr_present, p_cfg->fcr.mode, p_cfg->mtu_present, p_cfg->mtu);
+
+    /* Find the channel control block. We don't know the link it is on. */
+    if ((p_ccb = l2cu_find_ccb_by_cid (NULL, cid)) == NULL)
+    {
+        L2CAP_TRACE_WARNING ("L2CAP - no CCB for L2CA_cfg_req, CID: %d", cid);
+        return (FALSE);
+    }
+
+    /* We need to have at least one mode type common with the peer */
+    if (!l2c_fcr_adj_our_req_options(p_ccb, p_cfg))
+        return (FALSE);
+
+    /* Don't adjust FCR options if not used */
+    if ((!p_cfg->fcr_present)||(p_cfg->fcr.mode == L2CAP_FCR_BASIC_MODE))
+    {
+        /* FCR and FCS options are not used in basic mode */
+        p_cfg->fcs_present = FALSE;
+        p_cfg->ext_flow_spec_present = FALSE;
+
+        if ( (p_cfg->mtu_present) && (p_cfg->mtu > L2CAP_MTU_SIZE) )
+        {
+            L2CAP_TRACE_WARNING ("L2CAP - adjust MTU: %u too large", p_cfg->mtu);
+            p_cfg->mtu = L2CAP_MTU_SIZE;
+        }
+    }
+
+    /* Save the adjusted configuration in case it needs to be used for renegotiation */
+    p_ccb->our_cfg = *p_cfg;
+
+    l2c_csm_execute (p_ccb, L2CEVT_L2CA_CONFIG_REQ, p_cfg);
+
+    return (TRUE);
+}
+
+/*******************************************************************************
+**
+** Function         L2CA_ConfigRsp
+**
+** Description      Higher layers call this function to send a configuration
+**                  response.
+**
+** Returns          TRUE if configuration response sent, else FALSE
+**
+*******************************************************************************/
+BOOLEAN L2CA_ConfigRsp (UINT16 cid, tL2CAP_CFG_INFO *p_cfg)
+{
+    tL2C_CCB        *p_ccb;
+
+    L2CAP_TRACE_API ("L2CA_ConfigRsp()  CID: 0x%04x  Result: %d MTU present:%d Flush TO:%d FCR:%d FCS:%d",
+        cid, p_cfg->result, p_cfg->mtu_present, p_cfg->flush_to_present, p_cfg->fcr_present, p_cfg->fcs_present);
+
+    /* Find the channel control block. We don't know the link it is on. */
+    if ((p_ccb = l2cu_find_ccb_by_cid (NULL, cid)) == NULL)
+    {
+        L2CAP_TRACE_WARNING ("L2CAP - no CCB for L2CA_cfg_rsp, CID: %d", cid);
+        return (FALSE);
+    }
+
+    if ( (p_cfg->result == L2CAP_CFG_OK) || (p_cfg->result == L2CAP_CFG_PENDING) )
+        l2c_csm_execute (p_ccb, L2CEVT_L2CA_CONFIG_RSP, p_cfg);
+    else
+    {
+        p_cfg->fcr_present = FALSE; /* FCR options already negotiated before this point */
+
+        /* Clear out any cached options that are being returned as an error (excluding FCR) */
+        if (p_cfg->mtu_present)
+            p_ccb->peer_cfg.mtu_present = FALSE;
+        if (p_cfg->flush_to_present)
+            p_ccb->peer_cfg.flush_to_present = FALSE;
+        if (p_cfg->qos_present)
+            p_ccb->peer_cfg.qos_present = FALSE;
+
+        l2c_csm_execute (p_ccb, L2CEVT_L2CA_CONFIG_RSP_NEG, p_cfg);
+    }
+
+    return (TRUE);
+}
+
+/*******************************************************************************
+**
+** Function         L2CA_DisconnectReq
+**
+** Description      Higher layers call this function to disconnect a channel.
+**
+** Returns          TRUE if disconnect sent, else FALSE
+**
+*******************************************************************************/
+BOOLEAN L2CA_DisconnectReq (UINT16 cid)
+{
+    tL2C_CCB        *p_ccb;
+
+    L2CAP_TRACE_API ("L2CA_DisconnectReq()  CID: 0x%04x", cid);
+
+    /* Find the channel control block. We don't know the link it is on. */
+    if ((p_ccb = l2cu_find_ccb_by_cid (NULL, cid)) == NULL)
+    {
+        L2CAP_TRACE_WARNING ("L2CAP - no CCB for L2CA_disc_req, CID: %d", cid);
+        return (FALSE);
+    }
+
+    l2c_csm_execute (p_ccb, L2CEVT_L2CA_DISCONNECT_REQ, NULL);
+
+    return (TRUE);
+}
+
+/*******************************************************************************
+**
+** Function         L2CA_DisconnectRsp
+**
+** Description      Higher layers call this function to acknowledge the
+**                  disconnection of a channel.
+**
+** Returns          void
+**
+*******************************************************************************/
+BOOLEAN L2CA_DisconnectRsp (UINT16 cid)
+{
+    tL2C_CCB        *p_ccb;
+
+    L2CAP_TRACE_API ("L2CA_DisconnectRsp()  CID: 0x%04x", cid);
+
+    /* Find the channel control block. We don't know the link it is on. */
+    if ((p_ccb = l2cu_find_ccb_by_cid (NULL, cid)) == NULL)
+    {
+        L2CAP_TRACE_WARNING ("L2CAP - no CCB for L2CA_disc_rsp, CID: %d", cid);
+        return (FALSE);
+    }
+
+    l2c_csm_execute (p_ccb, L2CEVT_L2CA_DISCONNECT_RSP, NULL);
+
+    return (TRUE);
+}
+
+/*******************************************************************************
+**
+** Function         L2CA_Ping
+**
+** Description      Higher layers call this function to send an echo request.
+**
+** Returns          TRUE if echo request sent, else FALSE.
+**
+*******************************************************************************/
+BOOLEAN  L2CA_Ping (BD_ADDR p_bd_addr, tL2CA_ECHO_RSP_CB *p_callback)
+{
+    tL2C_LCB        *p_lcb;
+
+    L2CAP_TRACE_API ("L2CA_Ping()  BDA: %02x-%02x-%02x-%02x-%02x-%02x",
+                      p_bd_addr[0], p_bd_addr[1], p_bd_addr[2], p_bd_addr[3], p_bd_addr[4], p_bd_addr[5]);
+
+    /* Fail if we have not established communications with the controller */
+    if (!BTM_IsDeviceUp())
+        return (FALSE);
+
+    /* First, see if we already have a link to the remote */
+    if ((p_lcb = l2cu_find_lcb_by_bd_addr (p_bd_addr, BT_TRANSPORT_BR_EDR)) == NULL)
+    {
+        /* No link. Get an LCB and start link establishment */
+        if ((p_lcb = l2cu_allocate_lcb (p_bd_addr, FALSE, BT_TRANSPORT_BR_EDR)) == NULL)
+        {
+            L2CAP_TRACE_WARNING ("L2CAP - no LCB for L2CA_ping");
+            return (FALSE);
+        }
+        if (l2cu_create_conn(p_lcb, BT_TRANSPORT_BR_EDR) == FALSE)
+        {
+            return (FALSE);
+        }
+
+        p_lcb->p_echo_rsp_cb = p_callback;
+
+        return (TRUE);
+    }
+
+    /* We only allow 1 ping outstanding at a time */
+    if (p_lcb->p_echo_rsp_cb != NULL)
+    {
+        L2CAP_TRACE_WARNING ("L2CAP - rejected second L2CA_ping");
+        return (FALSE);
+    }
+
+    /* Have a link control block. If link is disconnecting, tell user to retry later */
+    if (p_lcb->link_state == LST_DISCONNECTING)
+    {
+        L2CAP_TRACE_WARNING ("L2CAP - L2CA_ping rejected - link disconnecting");
+        return (FALSE);
+    }
+
+    /* Save address of callback */
+    p_lcb->p_echo_rsp_cb = p_callback;
+
+    if (p_lcb->link_state == LST_CONNECTED)
+    {
+        l2cu_adj_id(p_lcb, L2CAP_ADJ_BRCM_ID);  /* Make sure not using Broadcom ID */
+        l2cu_send_peer_echo_req (p_lcb, NULL, 0);
+        alarm_set_on_queue(p_lcb->l2c_lcb_timer,
+                           L2CAP_ECHO_RSP_TIMEOUT_MS,
+                           l2c_lcb_timer_timeout, p_lcb,
+                           btu_general_alarm_queue);
+    }
+
+    return (TRUE);
+}
+
+/*******************************************************************************
+**
+** Function         L2CA_Echo
+**
+** Description      Higher layers call this function to send an echo request
+**                  with application-specific data.
+**
+** Returns          TRUE if echo request sent, else FALSE.
+**
+*******************************************************************************/
+BOOLEAN  L2CA_Echo (BD_ADDR p_bd_addr, BT_HDR *p_data, tL2CA_ECHO_DATA_CB *p_callback)
+{
+    tL2C_LCB    *p_lcb;
+    UINT8       *pp;
+
+    L2CAP_TRACE_API ("L2CA_Echo() BDA: %08X%04X",
+            ((p_bd_addr[0] << 24) + (p_bd_addr[1] << 16) + (p_bd_addr[2] <<  8) + (p_bd_addr[3])),
+            ((p_bd_addr[4] <<  8) + (p_bd_addr[5])));
+
+    /* Fail if we have not established communications with the controller */
+    if (!BTM_IsDeviceUp())
+        return (FALSE);
+
+    if ((memcmp(BT_BD_ANY, p_bd_addr, BD_ADDR_LEN) == 0) && (p_data == NULL))
+    {
+        /* Only register callback without sending message. */
+        l2cb.p_echo_data_cb = p_callback;
+        return TRUE;
+    }
+
+    /* We assume the upper layer will call this function only when the link is established. */
+    if ((p_lcb = l2cu_find_lcb_by_bd_addr (p_bd_addr, BT_TRANSPORT_BR_EDR)) == NULL)
+    {
+        L2CAP_TRACE_ERROR ("L2CA_Echo ERROR : link not established");
+        return FALSE;
+    }
+
+    if (p_lcb->link_state != LST_CONNECTED)
+    {
+        L2CAP_TRACE_ERROR ("L2CA_Echo ERROR : link is not connected");
+        return FALSE;
+    }
+
+    /* Save address of callback */
+    l2cb.p_echo_data_cb = p_callback;
+
+    /* Set the pointer to the beginning of the data */
+    pp = (UINT8 *)(p_data + 1) + p_data->offset;
+    l2cu_adj_id(p_lcb, L2CAP_ADJ_BRCM_ID);  /* Make sure not using Broadcom ID */
+    l2cu_send_peer_echo_req (p_lcb, pp, p_data->len);
+
+    return (TRUE);
+
+}
+
+bool L2CA_GetIdentifiers(uint16_t lcid, uint16_t *rcid, uint16_t *handle) {
+  tL2C_CCB *control_block = l2cu_find_ccb_by_cid(NULL, lcid);
+  if (!control_block)
+    return false;
+
+  if (rcid)
+    *rcid = control_block->remote_cid;
+  if (handle)
+    *handle = control_block->p_lcb->handle;
+
+  return true;
+}
+
+/*******************************************************************************
+**
+** Function         L2CA_SetIdleTimeout
+**
+** Description      Higher layers call this function to set the idle timeout for
+**                  a connection, or for all future connections. The "idle timeout"
+**                  is the amount of time that a connection can remain up with
+**                  no L2CAP channels on it. A timeout of zero means that the
+**                  connection will be torn down immediately when the last channel
+**                  is removed. A timeout of 0xFFFF means no timeout. Values are
+**                  in seconds.
+**
+** Returns          TRUE if command succeeded, FALSE if failed
+**
+** NOTE             This timeout takes effect after at least 1 channel has been
+**                  established and removed. L2CAP maintains its own timer from
+**                  whan a connection is established till the first channel is
+**                  set up.
+*******************************************************************************/
+BOOLEAN L2CA_SetIdleTimeout (UINT16 cid, UINT16 timeout, BOOLEAN is_global)
+{
+    tL2C_CCB        *p_ccb;
+    tL2C_LCB        *p_lcb;
+
+    if (is_global)
+    {
+        l2cb.idle_timeout = timeout;
+    }
+    else
+    {
+        /* Find the channel control block. We don't know the link it is on. */
+        if ((p_ccb = l2cu_find_ccb_by_cid (NULL, cid)) == NULL)
+        {
+            L2CAP_TRACE_WARNING ("L2CAP - no CCB for L2CA_SetIdleTimeout, CID: %d", cid);
+            return (FALSE);
+        }
+
+        p_lcb = p_ccb->p_lcb;
+
+        if ((p_lcb) && (p_lcb->in_use) && (p_lcb->link_state == LST_CONNECTED))
+            p_lcb->idle_timeout = timeout;
+        else
+            return (FALSE);
+    }
+
+    return (TRUE);
+}
+
+/*******************************************************************************
+**
+** Function         L2CA_SetIdleTimeoutByBdAddr
+**
+** Description      Higher layers call this function to set the idle timeout for
+**                  a connection. The "idle timeout" is the amount of time that
+**                  a connection can remain up with no L2CAP channels on it.
+**                  A timeout of zero means that the connection will be torn
+**                  down immediately when the last channel is removed.
+**                  A timeout of 0xFFFF means no timeout. Values are in seconds.
+**                  A bd_addr is the remote BD address. If bd_addr = BT_BD_ANY,
+**                  then the idle timeouts for all active l2cap links will be
+**                  changed.
+**
+** Returns          TRUE if command succeeded, FALSE if failed
+**
+** NOTE             This timeout applies to all logical channels active on the
+**                  ACL link.
+*******************************************************************************/
+BOOLEAN L2CA_SetIdleTimeoutByBdAddr(BD_ADDR bd_addr, UINT16 timeout, tBT_TRANSPORT transport)
+{
+    tL2C_LCB        *p_lcb;
+
+    if (memcmp (BT_BD_ANY, bd_addr, BD_ADDR_LEN))
+    {
+        p_lcb = l2cu_find_lcb_by_bd_addr( bd_addr, transport);
+        if ((p_lcb) && (p_lcb->in_use) && (p_lcb->link_state == LST_CONNECTED))
+        {
+            p_lcb->idle_timeout = timeout;
+
+            if (!p_lcb->ccb_queue.p_first_ccb)
+                l2cu_no_dynamic_ccbs (p_lcb);
+        }
+        else
+            return FALSE;
+    }
+    else
+    {
+        int         xx;
+        tL2C_LCB    *p_lcb = &l2cb.lcb_pool[0];
+
+        for (xx = 0; xx < MAX_L2CAP_LINKS; xx++, p_lcb++)
+        {
+            if ((p_lcb->in_use) && (p_lcb->link_state == LST_CONNECTED))
+            {
+                p_lcb->idle_timeout = timeout;
+
+                if (!p_lcb->ccb_queue.p_first_ccb)
+                    l2cu_no_dynamic_ccbs (p_lcb);
+            }
+        }
+    }
+
+    return TRUE;
+}
+
+/*******************************************************************************
+**
+** Function         L2CA_SetTraceLevel
+**
+** Description      This function sets the trace level for L2CAP. If called with
+**                  a value of 0xFF, it simply reads the current trace level.
+**
+** Returns          the new (current) trace level
+**
+*******************************************************************************/
+UINT8 L2CA_SetTraceLevel (UINT8 new_level)
+{
+    if (new_level != 0xFF)
+        l2cb.l2cap_trace_level = new_level;
+
+    return (l2cb.l2cap_trace_level);
+}
+
+/*******************************************************************************
+**
+** Function     L2CA_SetDesireRole
+**
+** Description  This function sets the desire role for L2CAP.
+**              If the new role is L2CAP_ROLE_ALLOW_SWITCH, allow switch on
+**              HciCreateConnection.
+**              If the new role is L2CAP_ROLE_DISALLOW_SWITCH, do not allow switch on
+**              HciCreateConnection.
+**
+**              If the new role is a valid role (HCI_ROLE_MASTER or HCI_ROLE_SLAVE),
+**              the desire role is set to the new value. Otherwise, it is not changed.
+**
+** Returns      the new (current) role
+**
+*******************************************************************************/
+UINT8 L2CA_SetDesireRole (UINT8 new_role)
+{
+    L2CAP_TRACE_API ("L2CA_SetDesireRole() new:x%x, disallow_switch:%d",
+        new_role, l2cb.disallow_switch);
+
+    if (L2CAP_ROLE_CHECK_SWITCH != (L2CAP_ROLE_CHECK_SWITCH & new_role))
+    {
+        /* do not process the allow_switch when both bits are set */
+        if (new_role & L2CAP_ROLE_ALLOW_SWITCH)
+        {
+            l2cb.disallow_switch = FALSE;
+        }
+        if (new_role & L2CAP_ROLE_DISALLOW_SWITCH)
+        {
+            l2cb.disallow_switch = TRUE;
+        }
+    }
+
+    if (new_role == HCI_ROLE_MASTER || new_role == HCI_ROLE_SLAVE)
+        l2cb.desire_role = new_role;
+
+    return (l2cb.desire_role);
+}
+
+/*******************************************************************************
+**
+** Function     L2CA_LocalLoopbackReq
+**
+** Description  This function sets up a CID for local loopback
+**
+** Returns      CID of 0 if none.
+**
+*******************************************************************************/
+UINT16 L2CA_LocalLoopbackReq (UINT16 psm, UINT16 handle, BD_ADDR p_bd_addr)
+{
+    tL2C_LCB        *p_lcb;
+    tL2C_CCB        *p_ccb;
+    tL2C_RCB        *p_rcb;
+
+    L2CAP_TRACE_API ("L2CA_LocalLoopbackReq()  PSM: %d  Handle: 0x%04x", psm, handle);
+
+    /* Fail if we have not established communications with the controller */
+    if (!BTM_IsDeviceUp())
+    {
+        L2CAP_TRACE_WARNING ("L2CAP loop req - BTU not ready");
+        return (0);
+    }
+
+    /* Fail if the PSM is not registered */
+    if ((p_rcb = l2cu_find_rcb_by_psm (psm)) == NULL)
+    {
+        L2CAP_TRACE_WARNING ("L2CAP - no RCB for L2CA_conn_req, PSM: %d", psm);
+        return (0);
+    }
+
+    if ((p_lcb = l2cu_allocate_lcb (p_bd_addr, FALSE, BT_TRANSPORT_BR_EDR)) == NULL)
+    {
+        L2CAP_TRACE_WARNING ("L2CAP - no LCB for L2CA_conn_req");
+        return (0);
+    }
+
+    p_lcb->link_state = LST_CONNECTED;
+    p_lcb->handle     = handle;
+
+    /* Allocate a channel control block */
+    if ((p_ccb = l2cu_allocate_ccb (p_lcb, 0)) == NULL)
+    {
+        L2CAP_TRACE_WARNING ("L2CAP - no CCB for L2CA_conn_req");
+        return (0);
+    }
+
+    /* Save registration info */
+    p_ccb->p_rcb        = p_rcb;
+    p_ccb->chnl_state   = CST_OPEN;
+    p_ccb->remote_cid   = p_ccb->local_cid;
+    p_ccb->config_done  = CFG_DONE_MASK;
+
+    /* Return the local CID as our handle */
+    return (p_ccb->local_cid);
+}
+
+/*******************************************************************************
+**
+** Function         L2CA_SetAclPriority
+**
+** Description      Sets the transmission priority for a channel.
+**                  (For initial implementation only two values are valid.
+**                  L2CAP_PRIORITY_NORMAL and L2CAP_PRIORITY_HIGH).
+**
+** Returns          TRUE if a valid channel, else FALSE
+**
+*******************************************************************************/
+BOOLEAN L2CA_SetAclPriority (BD_ADDR bd_addr, UINT8 priority)
+{
+    L2CAP_TRACE_API ("L2CA_SetAclPriority()  bdaddr: %02x%02x%02x%02x%04x, priority:%d",
+                    bd_addr[0], bd_addr[1], bd_addr[2],
+                    bd_addr[3], (bd_addr[4] << 8) + bd_addr[5], priority);
+
+    return (l2cu_set_acl_priority(bd_addr, priority, FALSE));
+}
+
+/*******************************************************************************
+**
+** Function         L2CA_FlowControl
+**
+** Description      Higher layers call this function to flow control a channel.
+**
+**                  data_enabled - TRUE data flows, FALSE data is stopped
+**
+** Returns          TRUE if valid channel, else FALSE
+**
+*******************************************************************************/
+BOOLEAN L2CA_FlowControl (UINT16 cid, BOOLEAN data_enabled)
+{
+    tL2C_CCB  *p_ccb;
+    BOOLEAN   on_off = !data_enabled;
+
+    L2CAP_TRACE_API ("L2CA_FlowControl(%d)  CID: 0x%04x", on_off, cid);
+
+    /* Find the channel control block. We don't know the link it is on. */
+    if ((p_ccb = l2cu_find_ccb_by_cid (NULL, cid)) == NULL)
+    {
+        L2CAP_TRACE_WARNING ("L2CAP - no CCB for L2CA_FlowControl, CID: 0x%04x  data_enabled: %d", cid, data_enabled);
+        return (FALSE);
+    }
+
+    if (p_ccb->peer_cfg.fcr.mode != L2CAP_FCR_ERTM_MODE)
+    {
+        L2CAP_TRACE_EVENT ("L2CA_FlowControl()  invalid mode:%d", p_ccb->peer_cfg.fcr.mode);
+        return (FALSE);
+    }
+    if (p_ccb->fcrb.local_busy != on_off)
+    {
+        p_ccb->fcrb.local_busy = on_off;
+
+        if ( (p_ccb->chnl_state == CST_OPEN) && (!p_ccb->fcrb.wait_ack) )
+        {
+            if (on_off)
+                l2c_fcr_send_S_frame (p_ccb, L2CAP_FCR_SUP_RNR, 0);
+            else
+                l2c_fcr_send_S_frame (p_ccb, L2CAP_FCR_SUP_RR, L2CAP_FCR_P_BIT);
+        }
+    }
+
+    return (TRUE);
+}
+
+/*******************************************************************************
+**
+** Function         L2CA_SendTestSFrame
+**
+** Description      Higher layers call this function to send a test S-frame.
+**
+** Returns          TRUE if valid Channel, else FALSE
+**
+*******************************************************************************/
+BOOLEAN L2CA_SendTestSFrame (UINT16 cid, UINT8 sup_type, UINT8 back_track)
+{
+    tL2C_CCB        *p_ccb;
+
+    L2CAP_TRACE_API ("L2CA_SendTestSFrame()  CID: 0x%04x  Type: 0x%02x  back_track: %u", cid, sup_type, back_track);
+
+    /* Find the channel control block. We don't know the link it is on. */
+    if ((p_ccb = l2cu_find_ccb_by_cid (NULL, cid)) == NULL)
+    {
+        L2CAP_TRACE_WARNING ("L2CAP - no CCB for L2CA_SendTestSFrame, CID: %d", cid);
+        return (FALSE);
+    }
+
+    if ( (p_ccb->chnl_state != CST_OPEN) || (p_ccb->peer_cfg.fcr.mode != L2CAP_FCR_ERTM_MODE) )
+        return (FALSE);
+
+    p_ccb->fcrb.next_seq_expected -= back_track;
+
+    l2c_fcr_send_S_frame (p_ccb, (UINT16)(sup_type & 3), (UINT16)(sup_type & (L2CAP_FCR_P_BIT | L2CAP_FCR_F_BIT)));
+
+    return (TRUE);
+}
+
+/*******************************************************************************
+**
+** Function         L2CA_SetTxPriority
+**
+** Description      Sets the transmission priority for a channel.
+**
+** Returns          TRUE if a valid channel, else FALSE
+**
+*******************************************************************************/
+BOOLEAN L2CA_SetTxPriority (UINT16 cid, tL2CAP_CHNL_PRIORITY priority)
+{
+    tL2C_CCB        *p_ccb;
+
+    L2CAP_TRACE_API ("L2CA_SetTxPriority()  CID: 0x%04x, priority:%d", cid, priority);
+
+    /* Find the channel control block. We don't know the link it is on. */
+    if ((p_ccb = l2cu_find_ccb_by_cid (NULL, cid)) == NULL)
+    {
+        L2CAP_TRACE_WARNING ("L2CAP - no CCB for L2CA_SetTxPriority, CID: %d", cid);
+        return (FALSE);
+    }
+
+    /* it will update the order of CCB in LCB by priority and update round robin service variables */
+    l2cu_change_pri_ccb (p_ccb, priority);
+
+    return (TRUE);
+}
+
+/*******************************************************************************
+**
+** Function         L2CA_SetChnlDataRate
+**
+** Description      Sets the tx/rx data rate for a channel.
+**
+** Returns          TRUE if a valid channel, else FALSE
+**
+*******************************************************************************/
+BOOLEAN L2CA_SetChnlDataRate (UINT16 cid, tL2CAP_CHNL_DATA_RATE tx, tL2CAP_CHNL_DATA_RATE rx)
+{
+    tL2C_CCB        *p_ccb;
+
+    L2CAP_TRACE_API ("L2CA_SetChnlDataRate()  CID: 0x%04x, tx:%d, rx:%d", cid, tx, rx);
+
+    /* Find the channel control block. We don't know the link it is on. */
+    if ((p_ccb = l2cu_find_ccb_by_cid (NULL, cid)) == NULL)
+    {
+        L2CAP_TRACE_WARNING ("L2CAP - no CCB for L2CA_SetChnlDataRate, CID: %d", cid);
+        return (FALSE);
+    }
+
+    p_ccb->tx_data_rate = tx;
+    p_ccb->rx_data_rate = rx;
+
+    /* Adjust channel buffer allocation */
+    l2c_link_adjust_chnl_allocation ();
+
+    return(TRUE);
+}
+
+/*******************************************************************************
+**
+** Function         L2CA_SetFlushTimeout
+**
+** Description      This function set the automatic flush time out in Baseband
+**                  for ACL-U packets.
+**                  BdAddr : the remote BD address of ACL link. If it is BT_DB_ANY
+**                           then the flush time out will be applied to all ACL link.
+**                  FlushTimeout: flush time out in ms
+**                           0x0000 : No automatic flush
+**                           L2CAP_NO_RETRANSMISSION : No retransmission
+**                           0x0002 - 0xFFFE : flush time out, if (flush_tout*8)+3/5)
+**                                    <= HCI_MAX_AUTO_FLUSH_TOUT (in 625us slot).
+**                                    Otherwise, return FALSE.
+**                           L2CAP_NO_AUTOMATIC_FLUSH : No automatic flush
+**
+** Returns          TRUE if command succeeded, FALSE if failed
+**
+** NOTE             This flush timeout applies to all logical channels active on the
+**                  ACL link.
+*******************************************************************************/
+BOOLEAN L2CA_SetFlushTimeout (BD_ADDR bd_addr, UINT16 flush_tout)
+{
+    tL2C_LCB    *p_lcb;
+    UINT16      hci_flush_to;
+    UINT32      temp;
+
+    /* no automatic flush (infinite timeout) */
+    if (flush_tout == 0x0000)
+    {
+        hci_flush_to = flush_tout;
+        flush_tout   = L2CAP_NO_AUTOMATIC_FLUSH;
+    }
+    /* no retransmission */
+    else if (flush_tout == L2CAP_NO_RETRANSMISSION)
+    {
+        /* not mandatory range for controller */
+        /* Packet is flushed before getting any ACK/NACK */
+        /* To do this, flush timeout should be 1 baseband slot */
+        hci_flush_to = flush_tout;
+    }
+    /* no automatic flush (infinite timeout) */
+    else if (flush_tout == L2CAP_NO_AUTOMATIC_FLUSH)
+    {
+        hci_flush_to = 0x0000;
+    }
+    else
+    {
+        /* convert L2CAP flush_to to 0.625 ms units, with round */
+        temp = (((UINT32)flush_tout * 8) + 3) / 5;
+
+        /* if L2CAP flush_to within range of HCI, set HCI flush timeout */
+        if (temp > HCI_MAX_AUTO_FLUSH_TOUT)
+        {
+            L2CAP_TRACE_WARNING("WARNING L2CA_SetFlushTimeout timeout(0x%x) is out of range", flush_tout);
+            return FALSE;
+        }
+        else
+        {
+            hci_flush_to = (UINT16)temp;
+        }
+    }
+
+    if (memcmp (BT_BD_ANY, bd_addr, BD_ADDR_LEN))
+    {
+        p_lcb = l2cu_find_lcb_by_bd_addr (bd_addr, BT_TRANSPORT_BR_EDR);
+
+        if ((p_lcb) && (p_lcb->in_use) && (p_lcb->link_state == LST_CONNECTED))
+        {
+            if (p_lcb->link_flush_tout != flush_tout)
+            {
+                p_lcb->link_flush_tout = flush_tout;
+
+                L2CAP_TRACE_API ("L2CA_SetFlushTimeout 0x%04x ms for bd_addr [...;%02x%02x%02x]",
+                                  flush_tout, bd_addr[3], bd_addr[4], bd_addr[5]);
+
+                if (!btsnd_hcic_write_auto_flush_tout (p_lcb->handle, hci_flush_to))
+                    return (FALSE);
+            }
+        }
+        else
+        {
+            L2CAP_TRACE_WARNING ("WARNING L2CA_SetFlushTimeout No lcb for bd_addr [...;%02x%02x%02x]",
+                                  bd_addr[3], bd_addr[4], bd_addr[5]);
+            return (FALSE);
+        }
+    }
+    else
+    {
+        int   xx;
+        p_lcb = &l2cb.lcb_pool[0];
+
+        for (xx = 0; xx < MAX_L2CAP_LINKS; xx++, p_lcb++)
+        {
+            if ((p_lcb->in_use) && (p_lcb->link_state == LST_CONNECTED))
+            {
+                if (p_lcb->link_flush_tout != flush_tout)
+                {
+                    p_lcb->link_flush_tout = flush_tout;
+
+                    L2CAP_TRACE_API ("L2CA_SetFlushTimeout 0x%04x ms for bd_addr [...;%02x%02x%02x]",
+                                      flush_tout, p_lcb->remote_bd_addr[3],
+                                      p_lcb->remote_bd_addr[4], p_lcb->remote_bd_addr[5]);
+
+                    if (!btsnd_hcic_write_auto_flush_tout(p_lcb->handle, hci_flush_to))
+                        return (FALSE);
+                }
+            }
+        }
+    }
+
+    return (TRUE);
+}
+
+/*******************************************************************************
+**
+**  Function         L2CA_GetPeerFeatures
+**
+**  Description      Get a peers features and fixed channel map
+**
+**  Parameters:      BD address of the peer
+**                   Pointers to features and channel mask storage area
+**
+**  Return value:    TRUE if peer is connected
+**
+*******************************************************************************/
+BOOLEAN L2CA_GetPeerFeatures (BD_ADDR bd_addr, UINT32 *p_ext_feat, UINT8 *p_chnl_mask)
+{
+    tL2C_LCB        *p_lcb;
+
+    /* We must already have a link to the remote */
+    if ((p_lcb = l2cu_find_lcb_by_bd_addr (bd_addr, BT_TRANSPORT_BR_EDR)) == NULL)
+    {
+        L2CAP_TRACE_WARNING ("L2CA_GetPeerFeatures() No BDA: %08x%04x",
+                              (bd_addr[0]<<24)+(bd_addr[1]<<16)+(bd_addr[2]<<8)+bd_addr[3],
+                              (bd_addr[4]<<8)+bd_addr[5]);
+        return (FALSE);
+    }
+
+    L2CAP_TRACE_API ("L2CA_GetPeerFeatures() BDA: %08x%04x  ExtFea: 0x%08x  Chnl_Mask[0]: 0x%02x",
+                      (bd_addr[0]<<24)+(bd_addr[1]<<16)+(bd_addr[2]<<8)+bd_addr[3],
+                      (bd_addr[4]<<8)+bd_addr[5], p_lcb->peer_ext_fea, p_lcb->peer_chnl_mask[0]);
+
+    *p_ext_feat = p_lcb->peer_ext_fea;
+
+    memcpy (p_chnl_mask, p_lcb->peer_chnl_mask, L2CAP_FIXED_CHNL_ARRAY_SIZE);
+
+    return (TRUE);
+}
+
+/*******************************************************************************
+**
+**  Function         L2CA_GetBDAddrbyHandle
+**
+**  Description      Get BD address for the given HCI handle
+**
+**  Parameters:      HCI handle
+**                   BD address of the peer
+**
+**  Return value:    TRUE if found lcb for the given handle, FALSE otherwise
+**
+*******************************************************************************/
+BOOLEAN L2CA_GetBDAddrbyHandle (UINT16 handle, BD_ADDR bd_addr)
+{
+    tL2C_LCB *p_lcb = NULL;
+    BOOLEAN found_dev = FALSE;
+
+    p_lcb = l2cu_find_lcb_by_handle (handle);
+    if (p_lcb)
+    {
+        found_dev = TRUE;
+        memcpy (bd_addr, p_lcb->remote_bd_addr, BD_ADDR_LEN);
+    }
+
+    return found_dev;
+}
+
+/*******************************************************************************
+**
+**  Function         L2CA_GetChnlFcrMode
+**
+**  Description      Get the channel FCR mode
+**
+**  Parameters:      Local CID
+**
+**  Return value:    Channel mode
+**
+*******************************************************************************/
+UINT8 L2CA_GetChnlFcrMode (UINT16 lcid)
+{
+    tL2C_CCB    *p_ccb = l2cu_find_ccb_by_cid (NULL, lcid);
+
+    if (p_ccb)
+    {
+        L2CAP_TRACE_API ("L2CA_GetChnlFcrMode() returns mode %d", p_ccb->peer_cfg.fcr.mode);
+        return (p_ccb->peer_cfg.fcr.mode);
+    }
+
+    L2CAP_TRACE_API ("L2CA_GetChnlFcrMode() returns mode L2CAP_FCR_BASIC_MODE");
+    return (L2CAP_FCR_BASIC_MODE);
+}
+
+#if (L2CAP_NUM_FIXED_CHNLS > 0)
+/*******************************************************************************
+**
+**  Function        L2CA_RegisterFixedChannel
+**
+**  Description     Register a fixed channel.
+**
+**  Parameters:     Fixed Channel #
+**                  Channel Callbacks and config
+**
+**  Return value:   -
+**
+*******************************************************************************/
+BOOLEAN  L2CA_RegisterFixedChannel (UINT16 fixed_cid, tL2CAP_FIXED_CHNL_REG *p_freg)
+{
+    if ( (fixed_cid < L2CAP_FIRST_FIXED_CHNL) || (fixed_cid > L2CAP_LAST_FIXED_CHNL) )
+    {
+        L2CAP_TRACE_ERROR ("L2CA_RegisterFixedChannel()  Invalid CID: 0x%04x", fixed_cid);
+
+        return (FALSE);
+    }
+
+    l2cb.fixed_reg[fixed_cid - L2CAP_FIRST_FIXED_CHNL] = *p_freg;
+    return (TRUE);
+}
+
+/*******************************************************************************
+**
+**  Function        L2CA_ConnectFixedChnl
+**
+**  Description     Connect an fixed signalling channel to a remote device.
+**
+**  Parameters:     Fixed CID
+**                  BD Address of remote
+**
+**  Return value:   TRUE if connection started
+**
+*******************************************************************************/
+BOOLEAN L2CA_ConnectFixedChnl (UINT16 fixed_cid, BD_ADDR rem_bda)
+{
+    tL2C_LCB *p_lcb;
+    tBT_TRANSPORT transport = BT_TRANSPORT_BR_EDR;
+
+    L2CAP_TRACE_API  ("%s() CID: 0x%04x  BDA: %08x%04x", __func__, fixed_cid,
+          (rem_bda[0]<<24)+(rem_bda[1]<<16)+(rem_bda[2]<<8)+rem_bda[3], (rem_bda[4]<<8)+rem_bda[5]);
+
+    // Check CID is valid and registered
+    if ( (fixed_cid < L2CAP_FIRST_FIXED_CHNL) || (fixed_cid > L2CAP_LAST_FIXED_CHNL)
+     ||  (l2cb.fixed_reg[fixed_cid - L2CAP_FIRST_FIXED_CHNL].pL2CA_FixedData_Cb == NULL) )
+    {
+        L2CAP_TRACE_ERROR ("%s() Invalid CID: 0x%04x", __func__, fixed_cid);
+        return (FALSE);
+    }
+
+    // Fail if BT is not yet up
+    if (!BTM_IsDeviceUp())
+    {
+        L2CAP_TRACE_WARNING ("%s(0x%04x) - BTU not ready", __func__, fixed_cid);
+        return (FALSE);
+    }
+
+#if BLE_INCLUDED == TRUE
+    if (fixed_cid >= L2CAP_ATT_CID && fixed_cid <= L2CAP_SMP_CID)
+        transport = BT_TRANSPORT_LE;
+#endif
+
+    tL2C_BLE_FIXED_CHNLS_MASK peer_channel_mask;
+
+    // If we already have a link to the remote, check if it supports that CID
+    if ((p_lcb = l2cu_find_lcb_by_bd_addr (rem_bda, transport)) != NULL)
+    {
+        // Fixed channels are mandatory on LE transports so ignore the received
+        // channel mask and use the locally cached LE channel mask.
+
+#if BLE_INCLUDED == TRUE
+        if (transport == BT_TRANSPORT_LE)
+            peer_channel_mask = l2cb.l2c_ble_fixed_chnls_mask;
+        else
+#endif
+            peer_channel_mask = p_lcb->peer_chnl_mask[0];
+
+        // Check for supported channel
+        if (!(peer_channel_mask & (1 << fixed_cid)))
+        {
+            L2CAP_TRACE_EVENT  ("%s() CID:0x%04x  BDA: %08x%04x not supported", __func__,
+                fixed_cid,(rem_bda[0]<<24)+(rem_bda[1]<<16)+(rem_bda[2]<<8)+rem_bda[3],
+                (rem_bda[4]<<8)+rem_bda[5]);
+            return FALSE;
+        }
+
+        // Get a CCB and link the lcb to it
+        if (!l2cu_initialize_fixed_ccb (p_lcb, fixed_cid,
+            &l2cb.fixed_reg[fixed_cid - L2CAP_FIRST_FIXED_CHNL].fixed_chnl_opts))
+        {
+            L2CAP_TRACE_WARNING ("%s(0x%04x) - LCB but no CCB", __func__, fixed_cid);
+            return FALSE;
+        }
+
+        // racing with disconnecting, queue the connection request
+        if (p_lcb->link_state == LST_DISCONNECTING)
+        {
+            L2CAP_TRACE_DEBUG ("$s() - link disconnecting: RETRY LATER", __func__);
+            /* Save ccb so it can be started after disconnect is finished */
+            p_lcb->p_pending_ccb = p_lcb->p_fixed_ccbs[fixed_cid - L2CAP_FIRST_FIXED_CHNL];
+            return TRUE;
+        }
+
+#if BLE_INCLUDED == TRUE
+        (*l2cb.fixed_reg[fixed_cid - L2CAP_FIRST_FIXED_CHNL].pL2CA_FixedConn_Cb)
+        (fixed_cid,p_lcb->remote_bd_addr, TRUE, 0, p_lcb->transport);
+#else
+        (*l2cb.fixed_reg[fixed_cid - L2CAP_FIRST_FIXED_CHNL].pL2CA_FixedConn_Cb)
+        (fixed_cid, p_lcb->remote_bd_addr, TRUE, 0, BT_TRANSPORT_BR_EDR);
+#endif
+        return TRUE;
+    }
+
+    // No link. Get an LCB and start link establishment
+    if ((p_lcb = l2cu_allocate_lcb (rem_bda, FALSE, transport)) == NULL)
+    {
+        L2CAP_TRACE_WARNING ("%s(0x%04x) - no LCB", __func__, fixed_cid);
+        return FALSE;
+    }
+
+    // Get a CCB and link the lcb to it
+    if (!l2cu_initialize_fixed_ccb (p_lcb, fixed_cid,
+        &l2cb.fixed_reg[fixed_cid - L2CAP_FIRST_FIXED_CHNL].fixed_chnl_opts))
+    {
+        p_lcb->disc_reason = L2CAP_CONN_NO_RESOURCES;
+        L2CAP_TRACE_WARNING ("%s(0x%04x) - no CCB", __func__, fixed_cid);
+        l2cu_release_lcb (p_lcb);
+        return FALSE;
+    }
+
+    if (!l2cu_create_conn(p_lcb, transport))
+    {
+        L2CAP_TRACE_WARNING ("%s() - create_conn failed", __func__);
+        l2cu_release_lcb (p_lcb);
+        return FALSE;
+    }
+    return TRUE;
+}
+
+/*******************************************************************************
+**
+**  Function        L2CA_SendFixedChnlData
+**
+**  Description     Write data on a fixed channel.
+**
+**  Parameters:     Fixed CID
+**                  BD Address of remote
+**                  Pointer to buffer of type BT_HDR
+**
+** Return value     L2CAP_DW_SUCCESS, if data accepted
+**                  L2CAP_DW_FAILED,  if error
+**
+*******************************************************************************/
+UINT16 L2CA_SendFixedChnlData (UINT16 fixed_cid, BD_ADDR rem_bda, BT_HDR *p_buf)
+{
+    tL2C_LCB        *p_lcb;
+    tBT_TRANSPORT   transport = BT_TRANSPORT_BR_EDR;
+
+    L2CAP_TRACE_API ("L2CA_SendFixedChnlData()  CID: 0x%04x  BDA: %08x%04x", fixed_cid,
+                     (rem_bda[0]<<24)+(rem_bda[1]<<16)+(rem_bda[2]<<8)+rem_bda[3], (rem_bda[4]<<8)+rem_bda[5]);
+
+#if BLE_INCLUDED == TRUE
+    if (fixed_cid >= L2CAP_ATT_CID && fixed_cid <= L2CAP_SMP_CID)
+        transport = BT_TRANSPORT_LE;
+#endif
+
+    // Check CID is valid and registered
+    if ( (fixed_cid < L2CAP_FIRST_FIXED_CHNL) || (fixed_cid > L2CAP_LAST_FIXED_CHNL)
+     ||  (l2cb.fixed_reg[fixed_cid - L2CAP_FIRST_FIXED_CHNL].pL2CA_FixedData_Cb == NULL) )
+    {
+        L2CAP_TRACE_ERROR ("L2CA_SendFixedChnlData()  Invalid CID: 0x%04x", fixed_cid);
+        osi_free(p_buf);
+        return (L2CAP_DW_FAILED);
+    }
+
+    // Fail if BT is not yet up
+    if (!BTM_IsDeviceUp())
+    {
+        L2CAP_TRACE_WARNING ("L2CA_SendFixedChnlData(0x%04x) - BTU not ready", fixed_cid);
+        osi_free(p_buf);
+        return (L2CAP_DW_FAILED);
+    }
+
+    // We need to have a link up
+    if ((p_lcb = l2cu_find_lcb_by_bd_addr (rem_bda, transport)) == NULL ||
+        /* if link is disconnecting, also report data sending failure */
+        p_lcb->link_state == LST_DISCONNECTING)
+    {
+        L2CAP_TRACE_WARNING ("L2CA_SendFixedChnlData(0x%04x) - no LCB", fixed_cid);
+        osi_free(p_buf);
+        return (L2CAP_DW_FAILED);
+    }
+
+    tL2C_BLE_FIXED_CHNLS_MASK peer_channel_mask;
+
+    // Select peer channels mask to use depending on transport
+#if BLE_INCLUDED == TRUE
+    if (transport == BT_TRANSPORT_LE)
+        peer_channel_mask = l2cb.l2c_ble_fixed_chnls_mask;
+    else
+#endif
+        peer_channel_mask = p_lcb->peer_chnl_mask[0];
+
+    if ((peer_channel_mask & (1 << fixed_cid)) == 0)
+    {
+        L2CAP_TRACE_WARNING ("L2CA_SendFixedChnlData() - peer does not support fixed chnl: 0x%04x", fixed_cid);
+        osi_free(p_buf);
+        return (L2CAP_DW_FAILED);
+    }
+
+    p_buf->event = 0;
+    p_buf->layer_specific = L2CAP_FLUSHABLE_CH_BASED;
+
+    if (!p_lcb->p_fixed_ccbs[fixed_cid - L2CAP_FIRST_FIXED_CHNL])
+    {
+        if (!l2cu_initialize_fixed_ccb (p_lcb, fixed_cid, &l2cb.fixed_reg[fixed_cid - L2CAP_FIRST_FIXED_CHNL].fixed_chnl_opts))
+        {
+            L2CAP_TRACE_WARNING ("L2CA_SendFixedChnlData() - no CCB for chnl: 0x%4x", fixed_cid);
+            osi_free(p_buf);
+            return (L2CAP_DW_FAILED);
+        }
+    }
+
+    // If already congested, do not accept any more packets
+    if (p_lcb->p_fixed_ccbs[fixed_cid - L2CAP_FIRST_FIXED_CHNL]->cong_sent)
+    {
+        L2CAP_TRACE_ERROR ("L2CAP - CID: 0x%04x cannot send, already congested \
+            xmit_hold_q.count: %u buff_quota: %u", fixed_cid,
+            fixed_queue_length(p_lcb->p_fixed_ccbs[fixed_cid - L2CAP_FIRST_FIXED_CHNL]->xmit_hold_q),
+            p_lcb->p_fixed_ccbs[fixed_cid - L2CAP_FIRST_FIXED_CHNL]->buff_quota);
+        osi_free(p_buf);
+        return (L2CAP_DW_FAILED);
+    }
+
+    l2c_enqueue_peer_data (p_lcb->p_fixed_ccbs[fixed_cid - L2CAP_FIRST_FIXED_CHNL], p_buf);
+
+    l2c_link_check_send_pkts (p_lcb, NULL, NULL);
+
+    // If there is no dynamic CCB on the link, restart the idle timer each time something is sent
+    if (p_lcb->in_use && p_lcb->link_state == LST_CONNECTED && !p_lcb->ccb_queue.p_first_ccb)
+    {
+        l2cu_no_dynamic_ccbs (p_lcb);
+    }
+
+    if (p_lcb->p_fixed_ccbs[fixed_cid - L2CAP_FIRST_FIXED_CHNL]->cong_sent)
+        return (L2CAP_DW_CONGESTED);
+
+    return (L2CAP_DW_SUCCESS);
+}
+
+/*******************************************************************************
+**
+**  Function        L2CA_RemoveFixedChnl
+**
+**  Description     Remove a fixed channel to a remote device.
+**
+**  Parameters:     Fixed CID
+**                  BD Address of remote
+**                  Idle timeout to use (or 0xFFFF if don't care)
+**
+**  Return value:   TRUE if channel removed
+**
+*******************************************************************************/
+BOOLEAN L2CA_RemoveFixedChnl (UINT16 fixed_cid, BD_ADDR rem_bda)
+{
+    tL2C_LCB    *p_lcb;
+    tL2C_CCB    *p_ccb;
+    tBT_TRANSPORT   transport = BT_TRANSPORT_BR_EDR;
+
+    /* Check CID is valid and registered */
+    if ( (fixed_cid < L2CAP_FIRST_FIXED_CHNL) || (fixed_cid > L2CAP_LAST_FIXED_CHNL)
+     ||  (l2cb.fixed_reg[fixed_cid - L2CAP_FIRST_FIXED_CHNL].pL2CA_FixedData_Cb == NULL) )
+    {
+        L2CAP_TRACE_ERROR ("L2CA_RemoveFixedChnl()  Invalid CID: 0x%04x", fixed_cid);
+        return (FALSE);
+    }
+
+#if BLE_INCLUDED == TRUE
+    if (fixed_cid >= L2CAP_ATT_CID && fixed_cid <= L2CAP_SMP_CID)
+        transport = BT_TRANSPORT_LE;
+#endif
+
+    /* Is a fixed channel connected to the remote BDA ?*/
+    p_lcb = l2cu_find_lcb_by_bd_addr (rem_bda, transport);
+
+    if ( ((p_lcb) == NULL) || (!p_lcb->p_fixed_ccbs[fixed_cid - L2CAP_FIRST_FIXED_CHNL]) )
+    {
+        L2CAP_TRACE_WARNING ("L2CA_RemoveFixedChnl()  CID: 0x%04x  BDA: %08x%04x not connected", fixed_cid,
+                             (rem_bda[0]<<24)+(rem_bda[1]<<16)+(rem_bda[2]<<8)+rem_bda[3], (rem_bda[4]<<8)+rem_bda[5]);
+        return (FALSE);
+    }
+
+    L2CAP_TRACE_API ("L2CA_RemoveFixedChnl()  CID: 0x%04x  BDA: %08x%04x", fixed_cid,
+                      (rem_bda[0]<<24)+(rem_bda[1]<<16)+(rem_bda[2]<<8)+rem_bda[3], (rem_bda[4]<<8)+rem_bda[5]);
+
+    /* Release the CCB, starting an inactivity timeout on the LCB if no other CCBs exist */
+    p_ccb = p_lcb->p_fixed_ccbs[fixed_cid - L2CAP_FIRST_FIXED_CHNL];
+
+    p_lcb->p_fixed_ccbs[fixed_cid - L2CAP_FIRST_FIXED_CHNL] = NULL;
+    p_lcb->disc_reason = HCI_ERR_CONN_CAUSE_LOCAL_HOST;
+
+#if BLE_INCLUDED == TRUE
+    // Retain the link for a few more seconds after SMP pairing is done, since the Android
+    // platform always does service discovery after pairing is complete. This will avoid
+    // the link down (pairing is complete) and an immediate re-connection for service
+    // discovery.
+    // Some devices do not do auto advertising when link is dropped, thus fail the second
+    // connection and service discovery.
+    if ((fixed_cid == L2CAP_ATT_CID ) && !p_lcb->ccb_queue.p_first_ccb)
+        p_lcb->idle_timeout = 0;
+#endif
+
+    l2cu_release_ccb (p_ccb);
+
+    return (TRUE);
+}
+
+/*******************************************************************************
+**
+** Function         L2CA_SetFixedChannelTout
+**
+** Description      Higher layers call this function to set the idle timeout for
+**                  a fixed channel. The "idle timeout" is the amount of time that
+**                  a connection can remain up with no L2CAP channels on it.
+**                  A timeout of zero means that the connection will be torn
+**                  down immediately when the last channel is removed.
+**                  A timeout of 0xFFFF means no timeout. Values are in seconds.
+**                  A bd_addr is the remote BD address. If bd_addr = BT_BD_ANY,
+**                  then the idle timeouts for all active l2cap links will be
+**                  changed.
+**
+** Returns          TRUE if command succeeded, FALSE if failed
+**
+*******************************************************************************/
+BOOLEAN L2CA_SetFixedChannelTout (BD_ADDR rem_bda, UINT16 fixed_cid, UINT16 idle_tout)
+{
+    tL2C_LCB        *p_lcb;
+    tBT_TRANSPORT   transport = BT_TRANSPORT_BR_EDR;
+
+#if BLE_INCLUDED == TRUE
+    if (fixed_cid >= L2CAP_ATT_CID && fixed_cid <= L2CAP_SMP_CID)
+        transport = BT_TRANSPORT_LE;
+#endif
+
+    /* Is a fixed channel connected to the remote BDA ?*/
+    p_lcb = l2cu_find_lcb_by_bd_addr (rem_bda, transport);
+    if ( ((p_lcb) == NULL) || (!p_lcb->p_fixed_ccbs[fixed_cid - L2CAP_FIRST_FIXED_CHNL]) )
+    {
+        L2CAP_TRACE_WARNING ("L2CA_SetFixedChannelTout()  CID: 0x%04x  BDA: %08x%04x not connected", fixed_cid,
+                             (rem_bda[0]<<24)+(rem_bda[1]<<16)+(rem_bda[2]<<8)+rem_bda[3], (rem_bda[4]<<8)+rem_bda[5]);
+        return (FALSE);
+    }
+
+    p_lcb->p_fixed_ccbs[fixed_cid - L2CAP_FIRST_FIXED_CHNL]->fixed_chnl_idle_tout = idle_tout;
+
+    if (p_lcb->in_use && p_lcb->link_state == LST_CONNECTED && !p_lcb->ccb_queue.p_first_ccb)
+    {
+        /* If there are no dynamic CCBs, (re)start the idle timer in case we changed it */
+        l2cu_no_dynamic_ccbs (p_lcb);
+    }
+
+    return TRUE;
+}
+
+#endif /* #if (L2CAP_NUM_FIXED_CHNLS > 0) */
+
+/*******************************************************************************
+**
+** Function     L2CA_GetCurrentConfig
+**
+** Description  This function returns configurations of L2CAP channel
+**              pp_our_cfg : pointer of our saved configuration options
+**              p_our_cfg_bits : valid config in bitmap
+**              pp_peer_cfg: pointer of peer's saved configuration options
+**              p_peer_cfg_bits : valid config in bitmap
+**
+** Returns      TRUE if successful
+**
+*******************************************************************************/
+BOOLEAN L2CA_GetCurrentConfig (UINT16 lcid,
+                               tL2CAP_CFG_INFO **pp_our_cfg,  tL2CAP_CH_CFG_BITS *p_our_cfg_bits,
+                               tL2CAP_CFG_INFO **pp_peer_cfg, tL2CAP_CH_CFG_BITS *p_peer_cfg_bits)
+{
+    tL2C_CCB    *p_ccb;
+
+    L2CAP_TRACE_API ("L2CA_GetCurrentConfig()  CID: 0x%04x", lcid);
+
+    p_ccb = l2cu_find_ccb_by_cid(NULL, lcid);
+
+    if (p_ccb)
+    {
+        *pp_our_cfg  = &(p_ccb->our_cfg);
+
+        /* convert valid config items into bitmap */
+        *p_our_cfg_bits = 0;
+        if (p_ccb->our_cfg.mtu_present)
+            *p_our_cfg_bits |= L2CAP_CH_CFG_MASK_MTU;
+        if (p_ccb->our_cfg.qos_present)
+            *p_our_cfg_bits |= L2CAP_CH_CFG_MASK_QOS;
+        if (p_ccb->our_cfg.flush_to_present)
+            *p_our_cfg_bits |= L2CAP_CH_CFG_MASK_FLUSH_TO;
+        if (p_ccb->our_cfg.fcr_present)
+            *p_our_cfg_bits |= L2CAP_CH_CFG_MASK_FCR;
+        if (p_ccb->our_cfg.fcs_present)
+            *p_our_cfg_bits |= L2CAP_CH_CFG_MASK_FCS;
+        if (p_ccb->our_cfg.ext_flow_spec_present)
+            *p_our_cfg_bits |= L2CAP_CH_CFG_MASK_EXT_FLOW_SPEC;
+
+        *pp_peer_cfg = &(p_ccb->peer_cfg);
+        *p_peer_cfg_bits = p_ccb->peer_cfg_bits;
+
+        return TRUE;
+    }
+    else
+    {
+        L2CAP_TRACE_ERROR ("No CCB for CID:0x%04x", lcid);
+        return FALSE;
+    }
+}
+
+/*******************************************************************************
+**
+** Function      L2CA_GetConnectionConfig
+**
+** Description  This function returns configurations of L2CAP channel
+**              pp_l2c_ccb : pointer to this channels L2CAP ccb data.
+**
+** Returns      TRUE if successful
+**
+*******************************************************************************/
+BOOLEAN L2CA_GetConnectionConfig(UINT16 lcid, UINT16 *mtu, UINT16 *rcid, UINT16 *handle)
+{
+    tL2C_CCB *p_ccb = l2cu_find_ccb_by_cid(NULL, lcid);;
+
+    L2CAP_TRACE_API ("%s CID: 0x%04x", __func__, lcid);
+
+    if (p_ccb)
+    {
+        *mtu = L2CAP_MTU_SIZE;
+        if (p_ccb->our_cfg.mtu_present)
+            *mtu = p_ccb->our_cfg.mtu;
+
+        *rcid  = p_ccb->remote_cid;
+        *handle= p_ccb->p_lcb->handle;
+        return TRUE;
+    }
+
+    L2CAP_TRACE_ERROR ("%s No CCB for CID:0x%04x", __func__, lcid);
+    return FALSE;
+}
+
+/*******************************************************************************
+**
+** Function         L2CA_RegForNoCPEvt
+**
+** Description      Register callback for Number of Completed Packets event.
+**
+** Input Param      p_cb - callback for Number of completed packets event
+**                  p_bda - BT address of remote device
+**
+** Returns          TRUE if registered OK, else FALSE
+**
+*******************************************************************************/
+BOOLEAN L2CA_RegForNoCPEvt(tL2CA_NOCP_CB *p_cb, BD_ADDR p_bda)
+{
+    tL2C_LCB        *p_lcb;
+
+    /* Find the link that is associated with this remote bdaddr */
+    p_lcb = l2cu_find_lcb_by_bd_addr (p_bda, BT_TRANSPORT_BR_EDR);
+
+    /* If no link for this handle, nothing to do. */
+    if (!p_lcb)
+        return FALSE;
+
+    p_lcb->p_nocp_cb = p_cb;
+
+    return TRUE;
+}
+
+/*******************************************************************************
+**
+** Function         L2CA_DataWrite
+**
+** Description      Higher layers call this function to write data.
+**
+** Returns          L2CAP_DW_SUCCESS, if data accepted, else FALSE
+**                  L2CAP_DW_CONGESTED, if data accepted and the channel is congested
+**                  L2CAP_DW_FAILED, if error
+**
+*******************************************************************************/
+UINT8 L2CA_DataWrite (UINT16 cid, BT_HDR *p_data)
+{
+    L2CAP_TRACE_API ("L2CA_DataWrite()  CID: 0x%04x  Len: %d", cid, p_data->len);
+    return l2c_data_write (cid, p_data, L2CAP_FLUSHABLE_CH_BASED);
+}
+
+/*******************************************************************************
+**
+** Function         L2CA_SetChnlFlushability
+**
+** Description      Higher layers call this function to set a channels
+**                  flushability flags
+**
+** Returns          TRUE if CID found, else FALSE
+**
+*******************************************************************************/
+BOOLEAN L2CA_SetChnlFlushability (UINT16 cid, BOOLEAN is_flushable)
+{
+#if (L2CAP_NON_FLUSHABLE_PB_INCLUDED == TRUE)
+
+    tL2C_CCB        *p_ccb;
+
+    /* Find the channel control block. We don't know the link it is on. */
+    if ((p_ccb = l2cu_find_ccb_by_cid (NULL, cid)) == NULL)
+    {
+        L2CAP_TRACE_WARNING ("L2CAP - no CCB for L2CA_SetChnlFlushability, CID: %d", cid);
+        return (FALSE);
+    }
+
+    p_ccb->is_flushable = is_flushable;
+
+    L2CAP_TRACE_API ("L2CA_SetChnlFlushability()  CID: 0x%04x  is_flushable: %d", cid, is_flushable);
+
+#endif
+
+    return (TRUE);
+}
+
+/*******************************************************************************
+**
+** Function         L2CA_DataWriteEx
+**
+** Description      Higher layers call this function to write data with extended
+**                  flags.
+**                  flags : L2CAP_FLUSHABLE_CH_BASED
+**                          L2CAP_FLUSHABLE_PKT
+**                          L2CAP_NON_FLUSHABLE_PKT
+**
+** Returns          L2CAP_DW_SUCCESS, if data accepted, else FALSE
+**                  L2CAP_DW_CONGESTED, if data accepted and the channel is congested
+**                  L2CAP_DW_FAILED, if error
+**
+*******************************************************************************/
+UINT8 L2CA_DataWriteEx (UINT16 cid, BT_HDR *p_data, UINT16 flags)
+{
+    L2CAP_TRACE_API ("L2CA_DataWriteEx()  CID: 0x%04x  Len: %d Flags:0x%04X",
+                       cid, p_data->len, flags);
+    return l2c_data_write (cid, p_data, flags);
+}
+
+/*******************************************************************************
+**
+** Function     L2CA_FlushChannel
+**
+** Description  This function flushes none, some or all buffers queued up
+**              for xmission for a particular CID. If called with
+**              L2CAP_FLUSH_CHANS_GET (0), it simply returns the number
+**              of buffers queued for that CID L2CAP_FLUSH_CHANS_ALL (0xffff)
+**              flushes all buffers.  All other values specifies the maximum
+**              buffers to flush.
+**
+** Returns      Number of buffers left queued for that CID
+**
+*******************************************************************************/
+UINT16 L2CA_FlushChannel (UINT16 lcid, UINT16 num_to_flush)
+{
+    tL2C_CCB        *p_ccb;
+    tL2C_LCB        *p_lcb;
+    UINT16          num_left = 0,
+                    num_flushed1 = 0,
+                    num_flushed2 = 0;
+
+    p_ccb = l2cu_find_ccb_by_cid(NULL, lcid);
+
+    if ( !p_ccb || ((p_lcb = p_ccb->p_lcb) == NULL) )
+    {
+        L2CAP_TRACE_WARNING ("L2CA_FlushChannel()  abnormally returning 0  CID: 0x%04x", lcid);
+        return (0);
+    }
+
+    if (num_to_flush != L2CAP_FLUSH_CHANS_GET)
+    {
+        L2CAP_TRACE_API ("L2CA_FlushChannel (FLUSH)  CID: 0x%04x  NumToFlush: %d  QC: %u  pFirst: 0x%08x",
+                         lcid, num_to_flush,
+                         fixed_queue_length(p_ccb->xmit_hold_q),
+                         fixed_queue_try_peek_first(p_ccb->xmit_hold_q));
+    }
+    else
+    {
+        L2CAP_TRACE_API ("L2CA_FlushChannel (QUERY)  CID: 0x%04x", lcid);
+    }
+
+    /* Cannot flush eRTM buffers once they have a sequence number */
+    if (p_ccb->peer_cfg.fcr.mode != L2CAP_FCR_ERTM_MODE)
+    {
+#if L2CAP_NON_FLUSHABLE_PB_INCLUDED == TRUE
+        if (num_to_flush != L2CAP_FLUSH_CHANS_GET)
+        {
+            /* If the controller supports enhanced flush, flush the data queued at the controller */
+            if ( (HCI_NON_FLUSHABLE_PB_SUPPORTED(BTM_ReadLocalFeatures ()))
+             && (BTM_GetNumScoLinks() == 0) )
+            {
+                if ( l2cb.is_flush_active == FALSE )
+                {
+                    l2cb.is_flush_active = TRUE;
+
+                    /* The only packet type defined - 0 - Automatically-Flushable Only */
+                    btsnd_hcic_enhanced_flush (p_lcb->handle, 0);
+                }
+            }
+        }
+#endif
+
+        // Iterate though list and flush the amount requested from
+        // the transmit data queue that satisfy the layer and event conditions.
+        for (const list_node_t *node = list_begin(p_lcb->link_xmit_data_q);
+            (num_to_flush > 0) && node != list_end(p_lcb->link_xmit_data_q);) {
+          BT_HDR *p_buf = (BT_HDR *)list_node(node);
+          node = list_next(node);
+          if ((p_buf->layer_specific == 0) && (p_buf->event == lcid)) {
+            num_to_flush--;
+            num_flushed1++;
+
+            list_remove(p_lcb->link_xmit_data_q, p_buf);
+            osi_free(p_buf);
+          }
+        }
+    }
+
+    /* If needed, flush buffers in the CCB xmit hold queue */
+    while ( (num_to_flush != 0) && (!fixed_queue_is_empty(p_ccb->xmit_hold_q)))
+    {
+        BT_HDR *p_buf = (BT_HDR *)fixed_queue_try_dequeue(p_ccb->xmit_hold_q);
+        osi_free(p_buf);
+        num_to_flush--;
+        num_flushed2++;
+    }
+
+    /* If app needs to track all packets, call him */
+    if ( (p_ccb->p_rcb) && (p_ccb->p_rcb->api.pL2CA_TxComplete_Cb) && (num_flushed2) )
+        (*p_ccb->p_rcb->api.pL2CA_TxComplete_Cb)(p_ccb->local_cid, num_flushed2);
+
+    /* Now count how many are left */
+    for (const list_node_t *node = list_begin(p_lcb->link_xmit_data_q);
+        node != list_end(p_lcb->link_xmit_data_q);
+        node = list_next(node)) {
+
+      BT_HDR *p_buf = (BT_HDR *)list_node(node);
+      if (p_buf->event == lcid)
+        num_left++;
+    }
+
+    /* Add in the number in the CCB xmit queue */
+    num_left += fixed_queue_length(p_ccb->xmit_hold_q);
+
+    /* Return the local number of buffers left for the CID */
+    L2CAP_TRACE_DEBUG ("L2CA_FlushChannel()  flushed: %u + %u,  num_left: %u", num_flushed1, num_flushed2, num_left);
+
+    /* If we were congested, and now we are not, tell the app */
+    l2cu_check_channel_congestion (p_ccb);
+
+    return (num_left);
+}
+
diff --git a/rtkbt/code/bt/stack/l2cap/l2c_ble.c b/rtkbt/code/bt/stack/l2cap/l2c_ble.c
new file mode 100755
index 0000000..1dbda6f
--- /dev/null
+++ b/rtkbt/code/bt/stack/l2cap/l2c_ble.c
@@ -0,0 +1,1518 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  this file contains functions relating to BLE management.
+ *
+ ******************************************************************************/
+
+#include <string.h>
+#include "bt_target.h"
+#include "bt_utils.h"
+#include "l2cdefs.h"
+#include "l2c_int.h"
+#include "btu.h"
+#include "btm_int.h"
+#include "hcimsgs.h"
+#include "device/include/controller.h"
+#include "stack_config.h"
+
+#if (BLE_INCLUDED == TRUE)
+
+extern fixed_queue_t *btu_general_alarm_queue;
+
+static void l2cble_start_conn_update (tL2C_LCB *p_lcb);
+
+/*******************************************************************************
+**
+**  Function        L2CA_CancelBleConnectReq
+**
+**  Description     Cancel a pending connection attempt to a BLE device.
+**
+**  Parameters:     BD Address of remote
+**
+**  Return value:   TRUE if connection was cancelled
+**
+*******************************************************************************/
+BOOLEAN L2CA_CancelBleConnectReq (BD_ADDR rem_bda)
+{
+    tL2C_LCB *p_lcb;
+
+    /* There can be only one BLE connection request outstanding at a time */
+    if (btm_ble_get_conn_st() == BLE_CONN_IDLE)
+    {
+        L2CAP_TRACE_WARNING ("L2CA_CancelBleConnectReq - no connection pending");
+        return(FALSE);
+    }
+
+    if (memcmp (rem_bda, l2cb.ble_connecting_bda, BD_ADDR_LEN))
+    {
+        L2CAP_TRACE_WARNING ("L2CA_CancelBleConnectReq - different  BDA Connecting: %08x%04x  Cancel: %08x%04x",
+                              (l2cb.ble_connecting_bda[0]<<24)+(l2cb.ble_connecting_bda[1]<<16)+(l2cb.ble_connecting_bda[2]<<8)+l2cb.ble_connecting_bda[3],
+                              (l2cb.ble_connecting_bda[4]<<8)+l2cb.ble_connecting_bda[5],
+                              (rem_bda[0]<<24)+(rem_bda[1]<<16)+(rem_bda[2]<<8)+rem_bda[3], (rem_bda[4]<<8)+rem_bda[5]);
+
+        return(FALSE);
+    }
+
+    if (btsnd_hcic_ble_create_conn_cancel())
+    {
+        p_lcb = l2cu_find_lcb_by_bd_addr(rem_bda, BT_TRANSPORT_LE);
+        /* Do not remove lcb if an LE link is already up as a peripheral */
+        if (p_lcb != NULL &&
+            !(p_lcb->link_role == HCI_ROLE_SLAVE && BTM_ACL_IS_CONNECTED(rem_bda)))
+        {
+            p_lcb->disc_reason = L2CAP_CONN_CANCEL;
+            l2cu_release_lcb (p_lcb);
+        }
+        /* update state to be cancel, wait for connection cancel complete */
+        btm_ble_set_conn_st (BLE_CONN_CANCEL);
+
+        return(TRUE);
+    }
+    else
+        return(FALSE);
+}
+
+/*******************************************************************************
+**
+**  Function        L2CA_UpdateBleConnParams
+**
+**  Description     Update BLE connection parameters.
+**
+**  Parameters:     BD Address of remote
+**
+**  Return value:   TRUE if update started
+**
+*******************************************************************************/
+BOOLEAN L2CA_UpdateBleConnParams (BD_ADDR rem_bda, UINT16 min_int, UINT16 max_int,
+                                            UINT16 latency, UINT16 timeout)
+{
+    tL2C_LCB            *p_lcb;
+    tACL_CONN           *p_acl_cb = btm_bda_to_acl(rem_bda, BT_TRANSPORT_LE);
+
+    /* See if we have a link control block for the remote device */
+    p_lcb = l2cu_find_lcb_by_bd_addr (rem_bda, BT_TRANSPORT_LE);
+
+    /* If we don't have one, create one and accept the connection. */
+    if (!p_lcb || !p_acl_cb)
+    {
+        L2CAP_TRACE_WARNING ("L2CA_UpdateBleConnParams - unknown BD_ADDR %08x%04x",
+                              (rem_bda[0]<<24)+(rem_bda[1]<<16)+(rem_bda[2]<<8)+rem_bda[3],
+                              (rem_bda[4]<<8)+rem_bda[5]);
+        return(FALSE);
+    }
+
+    if (p_lcb->transport != BT_TRANSPORT_LE)
+    {
+        L2CAP_TRACE_WARNING ("L2CA_UpdateBleConnParams - BD_ADDR %08x%04x not LE",
+                              (rem_bda[0]<<24)+(rem_bda[1]<<16)+(rem_bda[2]<<8)+rem_bda[3],
+                              (rem_bda[4]<<8)+rem_bda[5]);
+        return(FALSE);
+    }
+
+    p_lcb->min_interval = min_int;
+    p_lcb->max_interval = max_int;
+    p_lcb->latency = latency;
+    p_lcb->timeout = timeout;
+    p_lcb->conn_update_mask |= L2C_BLE_NEW_CONN_PARAM;
+
+    l2cble_start_conn_update(p_lcb);
+
+    return(TRUE);
+}
+
+
+/*******************************************************************************
+**
+**  Function        L2CA_EnableUpdateBleConnParams
+**
+**  Description     Enable or disable update based on the request from the peer
+**
+**  Parameters:     BD Address of remote
+**
+**  Return value:   TRUE if update started
+**
+*******************************************************************************/
+BOOLEAN L2CA_EnableUpdateBleConnParams (BD_ADDR rem_bda, BOOLEAN enable)
+{
+    if (stack_config_get_interface()->get_pts_conn_updates_disabled())
+        return false;
+
+    tL2C_LCB            *p_lcb;
+
+    /* See if we have a link control block for the remote device */
+    p_lcb = l2cu_find_lcb_by_bd_addr (rem_bda, BT_TRANSPORT_LE);
+
+    if (!p_lcb)
+    {
+        L2CAP_TRACE_WARNING ("L2CA_EnableUpdateBleConnParams - unknown BD_ADDR %08x%04x",
+            (rem_bda[0]<<24)+(rem_bda[1]<<16)+(rem_bda[2]<<8)+rem_bda[3],
+            (rem_bda[4]<<8)+rem_bda[5]);
+        return (FALSE);
+    }
+
+    L2CAP_TRACE_API ("%s - BD_ADDR %08x%04x enable %d current upd state 0x%02x",__FUNCTION__,
+        (rem_bda[0]<<24)+(rem_bda[1]<<16)+(rem_bda[2]<<8)+rem_bda[3],
+        (rem_bda[4]<<8)+rem_bda[5], enable, p_lcb->conn_update_mask);
+
+    if (p_lcb->transport != BT_TRANSPORT_LE)
+    {
+        L2CAP_TRACE_WARNING ("%s - BD_ADDR %08x%04x not LE (link role %d)", __FUNCTION__,
+                              (rem_bda[0]<<24)+(rem_bda[1]<<16)+(rem_bda[2]<<8)+rem_bda[3],
+                              (rem_bda[4]<<8)+rem_bda[5], p_lcb->link_role);
+        return (FALSE);
+    }
+
+    if (enable)
+        p_lcb->conn_update_mask &= ~L2C_BLE_CONN_UPDATE_DISABLE;
+    else
+        p_lcb->conn_update_mask |= L2C_BLE_CONN_UPDATE_DISABLE;
+
+    l2cble_start_conn_update(p_lcb);
+
+    return (TRUE);
+}
+
+
+/*******************************************************************************
+**
+** Function         L2CA_GetBleConnRole
+**
+** Description      This function returns the connection role.
+**
+** Returns          link role.
+**
+*******************************************************************************/
+UINT8 L2CA_GetBleConnRole (BD_ADDR bd_addr)
+{
+    UINT8       role = HCI_ROLE_UNKNOWN;
+
+    tL2C_LCB *p_lcb;
+
+    if ((p_lcb = l2cu_find_lcb_by_bd_addr (bd_addr, BT_TRANSPORT_LE)) != NULL)
+        role = p_lcb->link_role;
+
+    return role;
+}
+/*******************************************************************************
+**
+** Function         L2CA_GetDisconnectReason
+**
+** Description      This function returns the disconnect reason code.
+**
+** Returns          disconnect reason
+**
+*******************************************************************************/
+UINT16 L2CA_GetDisconnectReason (BD_ADDR remote_bda, tBT_TRANSPORT transport)
+{
+    tL2C_LCB            *p_lcb;
+    UINT16              reason = 0;
+
+    if ((p_lcb = l2cu_find_lcb_by_bd_addr (remote_bda, transport)) != NULL)
+        reason = p_lcb->disc_reason;
+
+    L2CAP_TRACE_DEBUG ("L2CA_GetDisconnectReason=%d ",reason);
+
+    return reason;
+}
+
+void l2cble_use_preferred_conn_params(BD_ADDR bda) {
+    tL2C_LCB *p_lcb = l2cu_find_lcb_by_bd_addr (bda, BT_TRANSPORT_LE);
+    tBTM_SEC_DEV_REC    *p_dev_rec = btm_find_or_alloc_dev (bda);
+
+    /* If there are any preferred connection parameters, set them now */
+    if ( (p_dev_rec->conn_params.min_conn_int     >= BTM_BLE_CONN_INT_MIN ) &&
+         (p_dev_rec->conn_params.min_conn_int     <= BTM_BLE_CONN_INT_MAX ) &&
+         (p_dev_rec->conn_params.max_conn_int     >= BTM_BLE_CONN_INT_MIN ) &&
+         (p_dev_rec->conn_params.max_conn_int     <= BTM_BLE_CONN_INT_MAX ) &&
+         (p_dev_rec->conn_params.slave_latency    <= BTM_BLE_CONN_LATENCY_MAX ) &&
+         (p_dev_rec->conn_params.supervision_tout >= BTM_BLE_CONN_SUP_TOUT_MIN) &&
+         (p_dev_rec->conn_params.supervision_tout <= BTM_BLE_CONN_SUP_TOUT_MAX) &&
+         ((p_lcb->min_interval < p_dev_rec->conn_params.min_conn_int &&
+          p_dev_rec->conn_params.min_conn_int != BTM_BLE_CONN_PARAM_UNDEF) ||
+          (p_lcb->min_interval > p_dev_rec->conn_params.max_conn_int) ||
+          (p_lcb->latency > p_dev_rec->conn_params.slave_latency) ||
+          (p_lcb->timeout > p_dev_rec->conn_params.supervision_tout)))
+    {
+        L2CAP_TRACE_DEBUG ("%s: HANDLE=%d min_conn_int=%d max_conn_int=%d slave_latency=%d supervision_tout=%d", __func__,
+                            p_lcb->handle, p_dev_rec->conn_params.min_conn_int, p_dev_rec->conn_params.max_conn_int,
+                            p_dev_rec->conn_params.slave_latency, p_dev_rec->conn_params.supervision_tout);
+
+        p_lcb->min_interval = p_dev_rec->conn_params.min_conn_int;
+        p_lcb->max_interval = p_dev_rec->conn_params.max_conn_int;
+        p_lcb->timeout      = p_dev_rec->conn_params.supervision_tout;
+        p_lcb->latency      = p_dev_rec->conn_params.slave_latency;
+
+        btsnd_hcic_ble_upd_ll_conn_params (p_lcb->handle,
+                                           p_dev_rec->conn_params.min_conn_int,
+                                           p_dev_rec->conn_params.max_conn_int,
+                                           p_dev_rec->conn_params.slave_latency,
+                                           p_dev_rec->conn_params.supervision_tout,
+                                           0, 0);
+    }
+}
+
+/*******************************************************************************
+**
+** Function l2cble_notify_le_connection
+**
+** Description This function notifiy the l2cap connection to the app layer
+**
+** Returns none
+**
+*******************************************************************************/
+void l2cble_notify_le_connection (BD_ADDR bda)
+{
+    tL2C_LCB *p_lcb = l2cu_find_lcb_by_bd_addr (bda, BT_TRANSPORT_LE);
+    tACL_CONN *p_acl = btm_bda_to_acl(bda, BT_TRANSPORT_LE) ;
+    tL2C_CCB *p_ccb;
+
+    if (p_lcb != NULL && p_acl != NULL && p_lcb->link_state != LST_CONNECTED)
+    {
+        /* update link status */
+        btm_establish_continue(p_acl);
+        /* update l2cap link status and send callback */
+        p_lcb->link_state = LST_CONNECTED;
+        l2cu_process_fixed_chnl_resp (p_lcb);
+    }
+
+    /* For all channels, send the event through their FSMs */
+    for (p_ccb = p_lcb->ccb_queue.p_first_ccb; p_ccb; p_ccb = p_ccb->p_next_ccb)
+    {
+        if (p_ccb->chnl_state == CST_CLOSED)
+            l2c_csm_execute (p_ccb, L2CEVT_LP_CONNECT_CFM, NULL);
+    }
+
+    l2cble_use_preferred_conn_params(bda);
+}
+
+/*******************************************************************************
+**
+** Function         l2cble_scanner_conn_comp
+**
+** Description      This function is called when an HCI Connection Complete
+**                  event is received while we are a scanner (so we are master).
+**
+** Returns          void
+**
+*******************************************************************************/
+void l2cble_scanner_conn_comp (UINT16 handle, BD_ADDR bda, tBLE_ADDR_TYPE type,
+                               UINT16 conn_interval, UINT16 conn_latency, UINT16 conn_timeout)
+{
+    tL2C_LCB            *p_lcb;
+    tBTM_SEC_DEV_REC    *p_dev_rec = btm_find_or_alloc_dev (bda);
+
+    L2CAP_TRACE_DEBUG ("l2cble_scanner_conn_comp: HANDLE=%d addr_type=%d conn_interval=%d slave_latency=%d supervision_tout=%d",
+                        handle,  type, conn_interval, conn_latency, conn_timeout);
+
+    l2cb.is_ble_connecting = FALSE;
+
+    /* See if we have a link control block for the remote device */
+    p_lcb = l2cu_find_lcb_by_bd_addr (bda, BT_TRANSPORT_LE);
+
+    /* If we don't have one, create one. this is auto connection complete. */
+    if (!p_lcb)
+    {
+        p_lcb = l2cu_allocate_lcb (bda, FALSE, BT_TRANSPORT_LE);
+        if (!p_lcb)
+        {
+            btm_sec_disconnect (handle, HCI_ERR_NO_CONNECTION);
+            L2CAP_TRACE_ERROR ("l2cble_scanner_conn_comp - failed to allocate LCB");
+            return;
+        }
+        else
+        {
+            if (!l2cu_initialize_fixed_ccb (p_lcb, L2CAP_ATT_CID, &l2cb.fixed_reg[L2CAP_ATT_CID - L2CAP_FIRST_FIXED_CHNL].fixed_chnl_opts))
+            {
+                btm_sec_disconnect (handle, HCI_ERR_NO_CONNECTION);
+                L2CAP_TRACE_WARNING ("l2cble_scanner_conn_comp - LCB but no CCB");
+                return ;
+            }
+        }
+    }
+    else if (p_lcb->link_state != LST_CONNECTING)
+    {
+        L2CAP_TRACE_ERROR ("L2CAP got BLE scanner conn_comp in bad state: %d", p_lcb->link_state);
+        return;
+    }
+    alarm_cancel(p_lcb->l2c_lcb_timer);
+
+    /* Save the handle */
+    p_lcb->handle = handle;
+
+    /* Connected OK. Change state to connected, we were scanning so we are master */
+    p_lcb->link_role  = HCI_ROLE_MASTER;
+    p_lcb->transport  = BT_TRANSPORT_LE;
+
+    /* update link parameter, set slave link as non-spec default upon link up */
+    p_lcb->min_interval =  p_lcb->max_interval = conn_interval;
+    p_lcb->timeout      =  conn_timeout;
+    p_lcb->latency      =  conn_latency;
+    p_lcb->conn_update_mask = L2C_BLE_NOT_DEFAULT_PARAM;
+
+    /* Tell BTM Acl management about the link */
+    btm_acl_created (bda, NULL, p_dev_rec->sec_bd_name, handle, p_lcb->link_role, BT_TRANSPORT_LE);
+
+    p_lcb->peer_chnl_mask[0] = L2CAP_FIXED_CHNL_ATT_BIT | L2CAP_FIXED_CHNL_BLE_SIG_BIT | L2CAP_FIXED_CHNL_SMP_BIT;
+
+    btm_ble_set_conn_st(BLE_CONN_IDLE);
+
+#if BLE_PRIVACY_SPT == TRUE
+    btm_ble_disable_resolving_list(BTM_BLE_RL_INIT, TRUE);
+#endif
+}
+
+
+/*******************************************************************************
+**
+** Function         l2cble_advertiser_conn_comp
+**
+** Description      This function is called when an HCI Connection Complete
+**                  event is received while we are an advertiser (so we are slave).
+**
+** Returns          void
+**
+*******************************************************************************/
+void l2cble_advertiser_conn_comp (UINT16 handle, BD_ADDR bda, tBLE_ADDR_TYPE type,
+                                  UINT16 conn_interval, UINT16 conn_latency, UINT16 conn_timeout)
+{
+    tL2C_LCB            *p_lcb;
+    tBTM_SEC_DEV_REC    *p_dev_rec;
+    UNUSED(type);
+    UNUSED(conn_interval);
+    UNUSED(conn_latency);
+    UNUSED(conn_timeout);
+
+    /* See if we have a link control block for the remote device */
+    p_lcb = l2cu_find_lcb_by_bd_addr (bda, BT_TRANSPORT_LE);
+
+    /* If we don't have one, create one and accept the connection. */
+    if (!p_lcb)
+    {
+        p_lcb = l2cu_allocate_lcb (bda, FALSE, BT_TRANSPORT_LE);
+        if (!p_lcb)
+        {
+            btm_sec_disconnect (handle, HCI_ERR_NO_CONNECTION);
+            L2CAP_TRACE_ERROR ("l2cble_advertiser_conn_comp - failed to allocate LCB");
+            return;
+        }
+        else
+        {
+            if (!l2cu_initialize_fixed_ccb (p_lcb, L2CAP_ATT_CID, &l2cb.fixed_reg[L2CAP_ATT_CID - L2CAP_FIRST_FIXED_CHNL].fixed_chnl_opts))
+            {
+                btm_sec_disconnect (handle, HCI_ERR_NO_CONNECTION);
+                L2CAP_TRACE_WARNING ("l2cble_scanner_conn_comp - LCB but no CCB");
+                return ;
+            }
+        }
+    }
+
+    /* Save the handle */
+    p_lcb->handle = handle;
+
+    /* Connected OK. Change state to connected, we were advertising, so we are slave */
+    p_lcb->link_role  = HCI_ROLE_SLAVE;
+    p_lcb->transport  = BT_TRANSPORT_LE;
+
+    /* update link parameter, set slave link as non-spec default upon link up */
+    p_lcb->min_interval = p_lcb->max_interval = conn_interval;
+    p_lcb->timeout      =  conn_timeout;
+    p_lcb->latency      =  conn_latency;
+    p_lcb->conn_update_mask = L2C_BLE_NOT_DEFAULT_PARAM;
+
+    /* Tell BTM Acl management about the link */
+    p_dev_rec = btm_find_or_alloc_dev (bda);
+
+    btm_acl_created (bda, NULL, p_dev_rec->sec_bd_name, handle, p_lcb->link_role, BT_TRANSPORT_LE);
+
+#if BLE_PRIVACY_SPT == TRUE
+    btm_ble_disable_resolving_list(BTM_BLE_RL_ADV, TRUE);
+#endif
+
+    p_lcb->peer_chnl_mask[0] = L2CAP_FIXED_CHNL_ATT_BIT | L2CAP_FIXED_CHNL_BLE_SIG_BIT | L2CAP_FIXED_CHNL_SMP_BIT;
+
+    if (!HCI_LE_SLAVE_INIT_FEAT_EXC_SUPPORTED(controller_get_interface()->get_features_ble()->as_array))
+    {
+        p_lcb->link_state = LST_CONNECTED;
+        l2cu_process_fixed_chnl_resp (p_lcb);
+    }
+
+    /* when adv and initiating are both active, cancel the direct connection */
+    if (l2cb.is_ble_connecting && memcmp(bda, l2cb.ble_connecting_bda, BD_ADDR_LEN) == 0)
+    {
+        L2CA_CancelBleConnectReq(bda);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         l2cble_conn_comp
+**
+** Description      This function is called when an HCI Connection Complete
+**                  event is received.
+**
+** Returns          void
+**
+*******************************************************************************/
+void l2cble_conn_comp(UINT16 handle, UINT8 role, BD_ADDR bda, tBLE_ADDR_TYPE type,
+                      UINT16 conn_interval, UINT16 conn_latency, UINT16 conn_timeout)
+{
+    btm_ble_update_link_topology_mask(role, TRUE);
+
+    if (role == HCI_ROLE_MASTER)
+    {
+        l2cble_scanner_conn_comp(handle, bda, type, conn_interval, conn_latency, conn_timeout);
+    }
+    else
+    {
+        l2cble_advertiser_conn_comp(handle, bda, type, conn_interval, conn_latency, conn_timeout);
+    }
+}
+
+/*******************************************************************************
+**
+**  Function        l2cble_start_conn_update
+**
+**  Description     start BLE connection parameter update process based on status
+**
+**  Parameters:     lcb : l2cap link control block
+**
+**  Return value:   none
+**
+*******************************************************************************/
+static void l2cble_start_conn_update (tL2C_LCB *p_lcb)
+{
+    UINT16 min_conn_int, max_conn_int, slave_latency, supervision_tout;
+    tACL_CONN *p_acl_cb = btm_bda_to_acl(p_lcb->remote_bd_addr, BT_TRANSPORT_LE);
+
+    // TODO(armansito): The return value of this call wasn't being used but the
+    // logic of this function might be depending on its side effects. We should
+    // verify if this call is needed at all and remove it otherwise.
+    btm_find_or_alloc_dev(p_lcb->remote_bd_addr);
+
+    if (p_lcb->conn_update_mask & L2C_BLE_UPDATE_PENDING) return;
+
+    if (p_lcb->conn_update_mask & L2C_BLE_CONN_UPDATE_DISABLE)
+    {
+        /* application requests to disable parameters update.
+           If parameters are already updated, lets set them
+           up to what has been requested during connection establishement */
+        if (p_lcb->conn_update_mask & L2C_BLE_NOT_DEFAULT_PARAM &&
+            /* current connection interval is greater than default min */
+            p_lcb->min_interval > BTM_BLE_CONN_INT_MIN)
+        {
+            /* use 7.5 ms as fast connection parameter, 0 slave latency */
+            min_conn_int = max_conn_int = BTM_BLE_CONN_INT_MIN;
+            slave_latency = BTM_BLE_CONN_SLAVE_LATENCY_DEF;
+            supervision_tout = BTM_BLE_CONN_TIMEOUT_DEF;
+
+            /* if both side 4.1, or we are master device, send HCI command */
+            if (p_lcb->link_role == HCI_ROLE_MASTER
+#if (defined BLE_LLT_INCLUDED) && (BLE_LLT_INCLUDED == TRUE)
+                || (HCI_LE_CONN_PARAM_REQ_SUPPORTED(controller_get_interface()->get_features_ble()->as_array) &&
+                    HCI_LE_CONN_PARAM_REQ_SUPPORTED(p_acl_cb->peer_le_features))
+#endif
+                 )
+            {
+                btsnd_hcic_ble_upd_ll_conn_params(p_lcb->handle, min_conn_int, max_conn_int,
+                                                  slave_latency, supervision_tout, 0, 0);
+                p_lcb->conn_update_mask |= L2C_BLE_UPDATE_PENDING;
+            }
+            else
+            {
+                l2cu_send_peer_ble_par_req (p_lcb, min_conn_int, max_conn_int, slave_latency, supervision_tout);
+            }
+            p_lcb->conn_update_mask &= ~L2C_BLE_NOT_DEFAULT_PARAM;
+            p_lcb->conn_update_mask |=  L2C_BLE_NEW_CONN_PARAM;
+         }
+    }
+    else
+    {
+        /* application allows to do update, if we were delaying one do it now */
+        if (p_lcb->conn_update_mask & L2C_BLE_NEW_CONN_PARAM)
+        {
+             /* if both side 4.1, or we are master device, send HCI command */
+            if (p_lcb->link_role == HCI_ROLE_MASTER
+#if (defined BLE_LLT_INCLUDED) && (BLE_LLT_INCLUDED == TRUE)
+                || (HCI_LE_CONN_PARAM_REQ_SUPPORTED(controller_get_interface()->get_features_ble()->as_array) &&
+                    HCI_LE_CONN_PARAM_REQ_SUPPORTED(p_acl_cb->peer_le_features))
+#endif
+                 )
+            {
+                btsnd_hcic_ble_upd_ll_conn_params(p_lcb->handle, p_lcb->min_interval,
+                    p_lcb->max_interval, p_lcb->latency, p_lcb->timeout, 0, 0);
+                p_lcb->conn_update_mask |= L2C_BLE_UPDATE_PENDING;
+            }
+            else
+            {
+                l2cu_send_peer_ble_par_req (p_lcb, p_lcb->min_interval, p_lcb->max_interval,
+                                            p_lcb->latency, p_lcb->timeout);
+            }
+            p_lcb->conn_update_mask &= ~L2C_BLE_NEW_CONN_PARAM;
+            p_lcb->conn_update_mask |= L2C_BLE_NOT_DEFAULT_PARAM;
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         l2cble_process_conn_update_evt
+**
+** Description      This function enables the connection update request from remote
+**                  after a successful connection update response is received.
+**
+** Returns          void
+**
+*******************************************************************************/
+void l2cble_process_conn_update_evt (UINT16 handle, UINT8 status)
+{
+    tL2C_LCB *p_lcb;
+
+    L2CAP_TRACE_DEBUG("l2cble_process_conn_update_evt");
+
+    /* See if we have a link control block for the remote device */
+    p_lcb = l2cu_find_lcb_by_handle(handle);
+    if (!p_lcb)
+    {
+        L2CAP_TRACE_WARNING("l2cble_process_conn_update_evt: Invalid handle: %d", handle);
+        return;
+    }
+
+    p_lcb->conn_update_mask &= ~L2C_BLE_UPDATE_PENDING;
+
+    if (status != HCI_SUCCESS)
+    {
+        L2CAP_TRACE_WARNING("l2cble_process_conn_update_evt: Error status: %d", status);
+    }
+
+    l2cble_start_conn_update(p_lcb);
+
+    L2CAP_TRACE_DEBUG("l2cble_process_conn_update_evt: conn_update_mask=%d", p_lcb->conn_update_mask);
+}
+/*******************************************************************************
+**
+** Function         l2cble_process_sig_cmd
+**
+** Description      This function is called when a signalling packet is received
+**                  on the BLE signalling CID
+**
+** Returns          void
+**
+*******************************************************************************/
+void l2cble_process_sig_cmd (tL2C_LCB *p_lcb, UINT8 *p, UINT16 pkt_len)
+{
+    UINT8           *p_pkt_end;
+    UINT8           cmd_code, id;
+    UINT16          cmd_len;
+    UINT16          min_interval, max_interval, latency, timeout;
+    tL2C_CONN_INFO  con_info;
+    UINT16          lcid = 0, rcid = 0, mtu = 0, mps = 0, initial_credit = 0;
+    tL2C_CCB        *p_ccb = NULL, *temp_p_ccb = NULL;
+    tL2C_RCB        *p_rcb;
+    UINT16          credit;
+    p_pkt_end = p + pkt_len;
+
+    STREAM_TO_UINT8  (cmd_code, p);
+    STREAM_TO_UINT8  (id, p);
+    STREAM_TO_UINT16 (cmd_len, p);
+
+    /* Check command length does not exceed packet length */
+    if ((p + cmd_len) > p_pkt_end)
+    {
+        L2CAP_TRACE_WARNING ("L2CAP - LE - format error, pkt_len: %d  cmd_len: %d  code: %d", pkt_len, cmd_len, cmd_code);
+        return;
+    }
+
+    switch (cmd_code)
+    {
+        case L2CAP_CMD_REJECT:
+            p += 2;
+            break;
+
+        case L2CAP_CMD_ECHO_REQ:
+        case L2CAP_CMD_ECHO_RSP:
+        case L2CAP_CMD_INFO_RSP:
+        case L2CAP_CMD_INFO_REQ:
+            l2cu_send_peer_cmd_reject (p_lcb, L2CAP_CMD_REJ_NOT_UNDERSTOOD, id, 0, 0);
+            break;
+
+        case L2CAP_CMD_BLE_UPDATE_REQ:
+            STREAM_TO_UINT16 (min_interval, p); /* 0x0006 - 0x0C80 */
+            STREAM_TO_UINT16 (max_interval, p); /* 0x0006 - 0x0C80 */
+            STREAM_TO_UINT16 (latency, p);  /* 0x0000 - 0x03E8 */
+            STREAM_TO_UINT16 (timeout, p);  /* 0x000A - 0x0C80 */
+            /* If we are a master, the slave wants to update the parameters */
+            if (p_lcb->link_role == HCI_ROLE_MASTER)
+            {
+                if (min_interval < BTM_BLE_CONN_INT_MIN_LIMIT)
+                    min_interval = BTM_BLE_CONN_INT_MIN_LIMIT;
+
+                if (min_interval < BTM_BLE_CONN_INT_MIN || min_interval > BTM_BLE_CONN_INT_MAX ||
+                    max_interval < BTM_BLE_CONN_INT_MIN || max_interval > BTM_BLE_CONN_INT_MAX ||
+                    latency  > BTM_BLE_CONN_LATENCY_MAX ||
+                    /*(timeout >= max_interval && latency > (timeout * 10/(max_interval * 1.25) - 1)) ||*/
+                    timeout < BTM_BLE_CONN_SUP_TOUT_MIN || timeout > BTM_BLE_CONN_SUP_TOUT_MAX ||
+                    max_interval < min_interval)
+                {
+                    l2cu_send_peer_ble_par_rsp (p_lcb, L2CAP_CFG_UNACCEPTABLE_PARAMS, id);
+                }
+                else
+                {
+
+                    l2cu_send_peer_ble_par_rsp (p_lcb, L2CAP_CFG_OK, id);
+
+                     p_lcb->min_interval = min_interval;
+                     p_lcb->max_interval = max_interval;
+                     p_lcb->latency = latency;
+                     p_lcb->timeout = timeout;
+                     p_lcb->conn_update_mask |= L2C_BLE_NEW_CONN_PARAM;
+
+                     l2cble_start_conn_update(p_lcb);
+                }
+            }
+            else
+                l2cu_send_peer_cmd_reject (p_lcb, L2CAP_CMD_REJ_NOT_UNDERSTOOD, id, 0, 0);
+            break;
+
+        case L2CAP_CMD_BLE_UPDATE_RSP:
+            p += 2;
+            break;
+
+        case L2CAP_CMD_BLE_CREDIT_BASED_CONN_REQ:
+            STREAM_TO_UINT16 (con_info.psm, p);
+            STREAM_TO_UINT16 (rcid, p);
+            STREAM_TO_UINT16 (mtu, p);
+            STREAM_TO_UINT16 (mps, p);
+            STREAM_TO_UINT16 (initial_credit, p);
+
+            L2CAP_TRACE_DEBUG ("Recv L2CAP_CMD_BLE_CREDIT_BASED_CONN_REQ with "
+                    "mtu = %d, "
+                    "mps = %d, "
+                    "initial credit = %d", mtu, mps, initial_credit);
+
+            if ((p_rcb = l2cu_find_ble_rcb_by_psm (con_info.psm)) == NULL)
+            {
+                L2CAP_TRACE_WARNING ("L2CAP - rcvd conn req for unknown PSM: 0x%04x", con_info.psm);
+                l2cu_reject_ble_connection (p_lcb, id, L2CAP_LE_NO_PSM);
+                break;
+            }
+            else
+            {
+                if (!p_rcb->api.pL2CA_ConnectInd_Cb)
+                {
+                    L2CAP_TRACE_WARNING ("L2CAP - rcvd conn req for outgoing-only connection PSM: %d", con_info.psm);
+                    l2cu_reject_ble_connection (p_lcb, id, L2CAP_CONN_NO_PSM);
+                    break;
+                }
+            }
+
+            /* Allocate a ccb for this.*/
+            if ((p_ccb = l2cu_allocate_ccb (p_lcb, 0)) == NULL)
+            {
+                L2CAP_TRACE_ERROR ("L2CAP - unable to allocate CCB");
+                l2cu_reject_ble_connection (p_lcb, id, L2CAP_CONN_NO_RESOURCES);
+                break;
+            }
+
+            /* validate the parameters */
+            if (mtu < L2CAP_LE_MIN_MTU || mps < L2CAP_LE_MIN_MPS || mps > L2CAP_LE_MAX_MPS)
+            {
+                L2CAP_TRACE_ERROR ("L2CAP don't like the params");
+                l2cu_reject_ble_connection (p_lcb, id, L2CAP_CONN_NO_RESOURCES);
+                break;
+            }
+
+            p_ccb->remote_id = id;
+            p_ccb->p_rcb = p_rcb;
+            p_ccb->remote_cid = rcid;
+
+            p_ccb->peer_conn_cfg.mtu = mtu;
+            p_ccb->peer_conn_cfg.mps = mps;
+            p_ccb->peer_conn_cfg.credits = initial_credit;
+
+            p_ccb->tx_mps = mps;
+            p_ccb->ble_sdu = NULL;
+            p_ccb->ble_sdu_length = 0;
+            p_ccb->is_first_seg = TRUE;
+            p_ccb->peer_cfg.fcr.mode = L2CAP_FCR_LE_COC_MODE;
+
+            l2c_csm_execute(p_ccb, L2CEVT_L2CAP_CONNECT_REQ, &con_info);
+            break;
+
+        case L2CAP_CMD_BLE_CREDIT_BASED_CONN_RES:
+            L2CAP_TRACE_DEBUG ("Recv L2CAP_CMD_BLE_CREDIT_BASED_CONN_RES");
+            /* For all channels, see whose identifier matches this id */
+            for (temp_p_ccb = p_lcb->ccb_queue.p_first_ccb; temp_p_ccb; temp_p_ccb = temp_p_ccb->p_next_ccb)
+            {
+                if (temp_p_ccb->local_id == id)
+                {
+                    p_ccb = temp_p_ccb;
+                    break;
+                }
+            }
+            if (p_ccb)
+            {
+                L2CAP_TRACE_DEBUG ("I remember the connection req");
+                STREAM_TO_UINT16 (p_ccb->remote_cid, p);
+                STREAM_TO_UINT16 (p_ccb->peer_conn_cfg.mtu, p);
+                STREAM_TO_UINT16 (p_ccb->peer_conn_cfg.mps, p);
+                STREAM_TO_UINT16 (p_ccb->peer_conn_cfg.credits, p);
+                STREAM_TO_UINT16 (con_info.l2cap_result, p);
+                con_info.remote_cid = p_ccb->remote_cid;
+
+                L2CAP_TRACE_DEBUG ("remote_cid = %d, "
+                        "mtu = %d, "
+                        "mps = %d, "
+                        "initial_credit = %d, "
+                        "con_info.l2cap_result = %d",
+                        p_ccb->remote_cid, p_ccb->peer_conn_cfg.mtu, p_ccb->peer_conn_cfg.mps,
+                        p_ccb->peer_conn_cfg.credits, con_info.l2cap_result);
+
+                /* validate the parameters */
+                if (p_ccb->peer_conn_cfg.mtu < L2CAP_LE_MIN_MTU ||
+                        p_ccb->peer_conn_cfg.mps < L2CAP_LE_MIN_MPS ||
+                        p_ccb->peer_conn_cfg.mps > L2CAP_LE_MAX_MPS)
+                {
+                    L2CAP_TRACE_ERROR ("L2CAP don't like the params");
+                    con_info.l2cap_result = L2CAP_LE_NO_RESOURCES;
+                    l2c_csm_execute(p_ccb, L2CEVT_L2CAP_CONNECT_RSP_NEG, &con_info);
+                    break;
+                }
+
+                p_ccb->tx_mps = p_ccb->peer_conn_cfg.mps;
+                p_ccb->ble_sdu = NULL;
+                p_ccb->ble_sdu_length = 0;
+                p_ccb->is_first_seg = TRUE;
+                p_ccb->peer_cfg.fcr.mode = L2CAP_FCR_LE_COC_MODE;
+
+                if (con_info.l2cap_result == L2CAP_LE_CONN_OK)
+                    l2c_csm_execute(p_ccb, L2CEVT_L2CAP_CONNECT_RSP, &con_info);
+                else
+                    l2c_csm_execute(p_ccb, L2CEVT_L2CAP_CONNECT_RSP_NEG, &con_info);
+            }
+            else
+            {
+                L2CAP_TRACE_DEBUG ("I DO NOT remember the connection req");
+                con_info.l2cap_result = L2CAP_LE_INVALID_SOURCE_CID;
+                l2c_csm_execute(p_ccb, L2CEVT_L2CAP_CONNECT_RSP_NEG, &con_info);
+            }
+            break;
+
+        case L2CAP_CMD_BLE_FLOW_CTRL_CREDIT:
+            STREAM_TO_UINT16(lcid, p);
+            if((p_ccb = l2cu_find_ccb_by_remote_cid(p_lcb, lcid)) == NULL)
+            {
+                L2CAP_TRACE_DEBUG ("%s Credit received for unknown channel id %d", __func__, lcid);
+                break;
+            }
+
+            STREAM_TO_UINT16(credit ,p);
+            l2c_csm_execute(p_ccb, L2CEVT_L2CAP_RECV_FLOW_CONTROL_CREDIT, &credit);
+            L2CAP_TRACE_DEBUG ("%s Credit received", __func__);
+            break;
+
+        case L2CAP_CMD_DISC_REQ:
+            STREAM_TO_UINT16 (lcid, p);
+            STREAM_TO_UINT16 (rcid, p);
+
+            if ((p_ccb = l2cu_find_ccb_by_cid (p_lcb, lcid)) != NULL)
+            {
+                if (p_ccb->remote_cid == rcid)
+                {
+                    p_ccb->remote_id = id;
+                    l2c_csm_execute (p_ccb, L2CEVT_L2CAP_DISCONNECT_REQ, NULL);
+                }
+            }
+            else
+                l2cu_send_peer_disc_rsp (p_lcb, id, lcid, rcid);
+
+            break;
+
+         case L2CAP_CMD_DISC_RSP:
+            STREAM_TO_UINT16 (rcid, p);
+            STREAM_TO_UINT16 (lcid, p);
+
+            if ((p_ccb = l2cu_find_ccb_by_cid (p_lcb, lcid)) != NULL)
+            {
+                if ((p_ccb->remote_cid == rcid) && (p_ccb->local_id == id))
+                    l2c_csm_execute (p_ccb, L2CEVT_L2CAP_DISCONNECT_RSP, NULL);
+            }
+            break;
+
+        default:
+            L2CAP_TRACE_WARNING ("L2CAP - LE - unknown cmd code: %d", cmd_code);
+            l2cu_send_peer_cmd_reject (p_lcb, L2CAP_CMD_REJ_NOT_UNDERSTOOD, id, 0, 0);
+            break;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         l2cble_init_direct_conn
+**
+** Description      This function is to initate a direct connection
+**
+** Returns          TRUE connection initiated, FALSE otherwise.
+**
+*******************************************************************************/
+BOOLEAN l2cble_init_direct_conn (tL2C_LCB *p_lcb)
+{
+    tBTM_SEC_DEV_REC *p_dev_rec = btm_find_or_alloc_dev (p_lcb->remote_bd_addr);
+    tBTM_BLE_CB *p_cb = &btm_cb.ble_ctr_cb;
+    UINT16 scan_int;
+    UINT16 scan_win;
+    BD_ADDR peer_addr;
+    UINT8 peer_addr_type = BLE_ADDR_PUBLIC;
+    UINT8 own_addr_type = BLE_ADDR_PUBLIC;
+
+    /* There can be only one BLE connection request outstanding at a time */
+    if (p_dev_rec == NULL)
+    {
+        L2CAP_TRACE_WARNING ("unknown device, can not initate connection");
+        return(FALSE);
+    }
+
+    scan_int = (p_cb->scan_int == BTM_BLE_SCAN_PARAM_UNDEF) ? BTM_BLE_SCAN_FAST_INT : p_cb->scan_int;
+    scan_win = (p_cb->scan_win == BTM_BLE_SCAN_PARAM_UNDEF) ? BTM_BLE_SCAN_FAST_WIN : p_cb->scan_win;
+
+    peer_addr_type = p_lcb->ble_addr_type;
+    memcpy(peer_addr, p_lcb->remote_bd_addr, BD_ADDR_LEN);
+
+#if ( (defined BLE_PRIVACY_SPT) && (BLE_PRIVACY_SPT == TRUE))
+    own_addr_type = btm_cb.ble_ctr_cb.privacy_mode ? BLE_ADDR_RANDOM : BLE_ADDR_PUBLIC;
+    if (p_dev_rec->ble.in_controller_list & BTM_RESOLVING_LIST_BIT)
+    {
+        if (btm_cb.ble_ctr_cb.privacy_mode >=  BTM_PRIVACY_1_2)
+            own_addr_type |= BLE_ADDR_TYPE_ID_BIT;
+
+        btm_ble_enable_resolving_list(BTM_BLE_RL_INIT);
+        btm_random_pseudo_to_identity_addr(peer_addr, &peer_addr_type);
+    } else {
+        btm_ble_disable_resolving_list(BTM_BLE_RL_INIT, TRUE);
+
+        // If we have a current RPA, use that instead.
+        if (!bdaddr_is_empty((const bt_bdaddr_t *)p_dev_rec->ble.cur_rand_addr)) {
+            memcpy(peer_addr, p_dev_rec->ble.cur_rand_addr, BD_ADDR_LEN);
+        }
+    }
+#endif
+
+    if (!btm_ble_topology_check(BTM_BLE_STATE_INIT))
+    {
+        l2cu_release_lcb (p_lcb);
+        L2CAP_TRACE_ERROR("initate direct connection fail, topology limitation");
+        return FALSE;
+    }
+
+    if (!btsnd_hcic_ble_create_ll_conn (scan_int,/* UINT16 scan_int      */
+                                        scan_win, /* UINT16 scan_win      */
+                                        FALSE,                   /* UINT8 white_list     */
+                                        peer_addr_type,          /* UINT8 addr_type_peer */
+                                        peer_addr,               /* BD_ADDR bda_peer     */
+                                        own_addr_type,         /* UINT8 addr_type_own  */
+        (UINT16) ((p_dev_rec->conn_params.min_conn_int != BTM_BLE_CONN_PARAM_UNDEF) ?
+        p_dev_rec->conn_params.min_conn_int : BTM_BLE_CONN_INT_MIN_DEF),  /* UINT16 conn_int_min  */
+        (UINT16) ((p_dev_rec->conn_params.max_conn_int != BTM_BLE_CONN_PARAM_UNDEF) ?
+        p_dev_rec->conn_params.max_conn_int : BTM_BLE_CONN_INT_MAX_DEF),  /* UINT16 conn_int_max  */
+        (UINT16) ((p_dev_rec->conn_params.slave_latency != BTM_BLE_CONN_PARAM_UNDEF) ?
+        p_dev_rec->conn_params.slave_latency : BTM_BLE_CONN_SLAVE_LATENCY_DEF), /* UINT16 conn_latency  */
+        (UINT16) ((p_dev_rec->conn_params.supervision_tout != BTM_BLE_CONN_PARAM_UNDEF) ?
+        p_dev_rec->conn_params.supervision_tout : BTM_BLE_CONN_TIMEOUT_DEF), /* conn_timeout */
+                                        0,                       /* UINT16 min_len       */
+                                        0))                      /* UINT16 max_len       */
+    {
+        l2cu_release_lcb (p_lcb);
+        L2CAP_TRACE_ERROR("initate direct connection fail, no resources");
+        return (FALSE);
+    }
+    else
+    {
+        p_lcb->link_state = LST_CONNECTING;
+        l2cb.is_ble_connecting = TRUE;
+        memcpy (l2cb.ble_connecting_bda, p_lcb->remote_bd_addr, BD_ADDR_LEN);
+        alarm_set_on_queue(p_lcb->l2c_lcb_timer,
+                           L2CAP_BLE_LINK_CONNECT_TIMEOUT_MS,
+                           l2c_lcb_timer_timeout, p_lcb,
+                           btu_general_alarm_queue);
+        btm_ble_set_conn_st (BLE_DIR_CONN);
+
+        return (TRUE);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         l2cble_create_conn
+**
+** Description      This function initiates an acl connection via HCI
+**
+** Returns          TRUE if successful, FALSE if connection not started.
+**
+*******************************************************************************/
+BOOLEAN l2cble_create_conn (tL2C_LCB *p_lcb)
+{
+    tBTM_BLE_CONN_ST     conn_st = btm_ble_get_conn_st();
+    BOOLEAN         rt = FALSE;
+
+    /* There can be only one BLE connection request outstanding at a time */
+    if (conn_st == BLE_CONN_IDLE)
+    {
+        rt = l2cble_init_direct_conn(p_lcb);
+    }
+    else
+    {
+        L2CAP_TRACE_WARNING ("L2CAP - LE - cannot start new connection at conn st: %d", conn_st);
+
+        btm_ble_enqueue_direct_conn_req(p_lcb);
+
+        if (conn_st == BLE_BG_CONN)
+            btm_ble_suspend_bg_conn();
+
+        rt = TRUE;
+    }
+    return rt;
+}
+
+/*******************************************************************************
+**
+** Function         l2c_link_processs_ble_num_bufs
+**
+** Description      This function is called when a "controller buffer size"
+**                  event is first received from the controller. It updates
+**                  the L2CAP values.
+**
+** Returns          void
+**
+*******************************************************************************/
+void l2c_link_processs_ble_num_bufs (UINT16 num_lm_ble_bufs)
+{
+    if (num_lm_ble_bufs == 0)
+    {
+        num_lm_ble_bufs = L2C_DEF_NUM_BLE_BUF_SHARED;
+        l2cb.num_lm_acl_bufs -= L2C_DEF_NUM_BLE_BUF_SHARED;
+    }
+
+    l2cb.num_lm_ble_bufs = l2cb.controller_le_xmit_window = num_lm_ble_bufs;
+}
+
+/*******************************************************************************
+**
+** Function         l2c_ble_link_adjust_allocation
+**
+** Description      This function is called when a link is created or removed
+**                  to calculate the amount of packets each link may send to
+**                  the HCI without an ack coming back.
+**
+**                  Currently, this is a simple allocation, dividing the
+**                  number of Controller Packets by the number of links. In
+**                  the future, QOS configuration should be examined.
+**
+** Returns          void
+**
+*******************************************************************************/
+void l2c_ble_link_adjust_allocation (void)
+{
+    UINT16      qq, yy, qq_remainder;
+    tL2C_LCB    *p_lcb;
+    UINT16      hi_quota, low_quota;
+    UINT16      num_lowpri_links = 0;
+    UINT16      num_hipri_links  = 0;
+    UINT16      controller_xmit_quota = l2cb.num_lm_ble_bufs;
+    UINT16      high_pri_link_quota = L2CAP_HIGH_PRI_MIN_XMIT_QUOTA_A;
+
+    /* If no links active, reset buffer quotas and controller buffers */
+    if (l2cb.num_ble_links_active == 0)
+    {
+        l2cb.controller_le_xmit_window = l2cb.num_lm_ble_bufs;
+        l2cb.ble_round_robin_quota = l2cb.ble_round_robin_unacked = 0;
+        return;
+    }
+
+    /* First, count the links */
+    for (yy = 0, p_lcb = &l2cb.lcb_pool[0]; yy < MAX_L2CAP_LINKS; yy++, p_lcb++)
+    {
+        if (p_lcb->in_use && p_lcb->transport == BT_TRANSPORT_LE)
+        {
+            if (p_lcb->acl_priority == L2CAP_PRIORITY_HIGH)
+                num_hipri_links++;
+            else
+                num_lowpri_links++;
+        }
+    }
+
+    /* now adjust high priority link quota */
+    low_quota = num_lowpri_links ? 1 : 0;
+    while ( (num_hipri_links * high_pri_link_quota + low_quota) > controller_xmit_quota )
+        high_pri_link_quota--;
+
+
+    /* Work out the xmit quota and buffer quota high and low priorities */
+    hi_quota  = num_hipri_links * high_pri_link_quota;
+    low_quota = (hi_quota < controller_xmit_quota) ? controller_xmit_quota - hi_quota : 1;
+
+    /* Work out and save the HCI xmit quota for each low priority link */
+
+    /* If each low priority link cannot have at least one buffer */
+    if (num_lowpri_links > low_quota)
+    {
+        l2cb.ble_round_robin_quota = low_quota;
+        qq = qq_remainder = 0;
+    }
+    /* If each low priority link can have at least one buffer */
+    else if (num_lowpri_links > 0)
+    {
+        l2cb.ble_round_robin_quota = 0;
+        l2cb.ble_round_robin_unacked = 0;
+        qq = low_quota / num_lowpri_links;
+        qq_remainder = low_quota % num_lowpri_links;
+    }
+    /* If no low priority link */
+    else
+    {
+        l2cb.ble_round_robin_quota = 0;
+        l2cb.ble_round_robin_unacked = 0;
+        qq = qq_remainder = 0;
+    }
+    L2CAP_TRACE_EVENT ("l2c_ble_link_adjust_allocation  num_hipri: %u  num_lowpri: %u  low_quota: %u  round_robin_quota: %u  qq: %u",
+                        num_hipri_links, num_lowpri_links, low_quota,
+                        l2cb.ble_round_robin_quota, qq);
+
+    /* Now, assign the quotas to each link */
+    for (yy = 0, p_lcb = &l2cb.lcb_pool[0]; yy < MAX_L2CAP_LINKS; yy++, p_lcb++)
+    {
+        if (p_lcb->in_use && p_lcb->transport == BT_TRANSPORT_LE)
+        {
+            if (p_lcb->acl_priority == L2CAP_PRIORITY_HIGH)
+            {
+                p_lcb->link_xmit_quota   = high_pri_link_quota;
+            }
+            else
+            {
+                /* Safety check in case we switched to round-robin with something outstanding */
+                /* if sent_not_acked is added into round_robin_unacked then don't add it again */
+                /* l2cap keeps updating sent_not_acked for exiting from round robin */
+                if (( p_lcb->link_xmit_quota > 0 )&&( qq == 0 ))
+                    l2cb.ble_round_robin_unacked += p_lcb->sent_not_acked;
+
+                p_lcb->link_xmit_quota   = qq;
+                if (qq_remainder > 0)
+                {
+                    p_lcb->link_xmit_quota++;
+                    qq_remainder--;
+                }
+            }
+
+            L2CAP_TRACE_EVENT("l2c_ble_link_adjust_allocation LCB %d   Priority: %d  XmitQuota: %d",
+                                yy, p_lcb->acl_priority, p_lcb->link_xmit_quota);
+
+            L2CAP_TRACE_EVENT("        SentNotAcked: %d  RRUnacked: %d",
+                                p_lcb->sent_not_acked, l2cb.round_robin_unacked);
+
+            /* There is a special case where we have readjusted the link quotas and  */
+            /* this link may have sent anything but some other link sent packets so  */
+            /* so we may need a timer to kick off this link's transmissions.         */
+            if ( (p_lcb->link_state == LST_CONNECTED)
+              && (!list_is_empty(p_lcb->link_xmit_data_q))
+                 && (p_lcb->sent_not_acked < p_lcb->link_xmit_quota) ) {
+                alarm_set_on_queue(p_lcb->l2c_lcb_timer,
+                                   L2CAP_LINK_FLOW_CONTROL_TIMEOUT_MS,
+                                   l2c_lcb_timer_timeout, p_lcb,
+                                   btu_general_alarm_queue);
+            }
+        }
+    }
+}
+
+#if (defined BLE_LLT_INCLUDED) && (BLE_LLT_INCLUDED == TRUE)
+/*******************************************************************************
+**
+** Function         l2cble_process_rc_param_request_evt
+**
+** Description      process LE Remote Connection Parameter Request Event.
+**
+** Returns          void
+**
+*******************************************************************************/
+void l2cble_process_rc_param_request_evt(UINT16 handle, UINT16 int_min, UINT16 int_max,
+                                     UINT16 latency, UINT16 timeout)
+{
+    tL2C_LCB    *p_lcb = l2cu_find_lcb_by_handle (handle);
+
+    if (p_lcb != NULL)
+    {
+        p_lcb->min_interval = int_min;
+        p_lcb->max_interval = int_max;
+        p_lcb->latency = latency;
+        p_lcb->timeout = timeout;
+
+        /* if update is enabled, always accept connection parameter update */
+        if ((p_lcb->conn_update_mask & L2C_BLE_CONN_UPDATE_DISABLE) == 0)
+        {
+            btsnd_hcic_ble_rc_param_req_reply(handle, int_min, int_max, latency, timeout, 0, 0);
+        }
+        else
+        {
+            L2CAP_TRACE_EVENT ("L2CAP - LE - update currently disabled");
+            p_lcb->conn_update_mask |= L2C_BLE_NEW_CONN_PARAM;
+            btsnd_hcic_ble_rc_param_req_neg_reply (handle,HCI_ERR_UNACCEPT_CONN_INTERVAL);
+        }
+
+    }
+    else
+    {
+        L2CAP_TRACE_WARNING("No link to update connection parameter")
+    }
+}
+#endif
+
+/*******************************************************************************
+**
+** Function         l2cble_update_data_length
+**
+** Description      This function update link tx data length if applicable
+**
+** Returns          void
+**
+*******************************************************************************/
+void l2cble_update_data_length(tL2C_LCB *p_lcb)
+{
+    UINT16 tx_mtu = 0;
+    UINT16 i = 0;
+
+    L2CAP_TRACE_DEBUG("%s", __FUNCTION__);
+
+    /* See if we have a link control block for the connection */
+    if (p_lcb == NULL)
+        return;
+
+    for (i = 0; i < L2CAP_NUM_FIXED_CHNLS; i++)
+    {
+        if (i + L2CAP_FIRST_FIXED_CHNL != L2CAP_BLE_SIGNALLING_CID)
+        {
+            if ((p_lcb->p_fixed_ccbs[i] != NULL) &&
+                    (tx_mtu < (p_lcb->p_fixed_ccbs[i]->tx_data_len + L2CAP_PKT_OVERHEAD)))
+                tx_mtu = p_lcb->p_fixed_ccbs[i]->tx_data_len + L2CAP_PKT_OVERHEAD;
+        }
+    }
+
+    if (tx_mtu > BTM_BLE_DATA_SIZE_MAX)
+        tx_mtu = BTM_BLE_DATA_SIZE_MAX;
+
+    /* update TX data length if changed */
+    if (p_lcb->tx_data_len != tx_mtu)
+        BTM_SetBleDataLength(p_lcb->remote_bd_addr, tx_mtu);
+
+}
+
+/*******************************************************************************
+**
+** Function         l2cble_process_data_length_change_evt
+**
+** Description      This function process the data length change event
+**
+** Returns          void
+**
+*******************************************************************************/
+void l2cble_process_data_length_change_event(UINT16 handle, UINT16 tx_data_len, UINT16 rx_data_len)
+{
+    tL2C_LCB *p_lcb = l2cu_find_lcb_by_handle(handle);
+
+    L2CAP_TRACE_DEBUG("%s TX data len = %d", __FUNCTION__, tx_data_len);
+    if (p_lcb == NULL)
+        return;
+
+    if (tx_data_len > 0)
+        p_lcb->tx_data_len = tx_data_len;
+
+    /* ignore rx_data len for now */
+}
+
+/*******************************************************************************
+**
+** Function         l2cble_set_fixed_channel_tx_data_length
+**
+** Description      This function update max fixed channel tx data length if applicable
+**
+** Returns          void
+**
+*******************************************************************************/
+void l2cble_set_fixed_channel_tx_data_length(BD_ADDR remote_bda, UINT16 fix_cid, UINT16 tx_mtu)
+{
+    tL2C_LCB *p_lcb = l2cu_find_lcb_by_bd_addr(remote_bda, BT_TRANSPORT_LE);
+    UINT16 cid = fix_cid - L2CAP_FIRST_FIXED_CHNL;
+
+    L2CAP_TRACE_DEBUG("%s TX MTU = %d", __FUNCTION__, tx_mtu);
+
+    if (!controller_get_interface()->supports_ble_packet_extension())
+    {
+        L2CAP_TRACE_WARNING("%s, request not supported", __FUNCTION__);
+        return;
+    }
+
+    /* See if we have a link control block for the connection */
+    if (p_lcb == NULL)
+        return;
+
+    if (p_lcb->p_fixed_ccbs[cid] != NULL)
+    {
+        if (tx_mtu > BTM_BLE_DATA_SIZE_MAX)
+            tx_mtu = BTM_BLE_DATA_SIZE_MAX;
+
+        p_lcb->p_fixed_ccbs[cid]->tx_data_len = tx_mtu;
+    }
+
+    l2cble_update_data_length(p_lcb);
+}
+
+/*******************************************************************************
+**
+** Function         l2cble_credit_based_conn_req
+**
+** Description      This function sends LE Credit Based Connection Request for
+**                  LE connection oriented channels.
+**
+** Returns          void
+**
+*******************************************************************************/
+void l2cble_credit_based_conn_req (tL2C_CCB *p_ccb)
+{
+    if (!p_ccb)
+        return;
+
+    if (p_ccb->p_lcb && p_ccb->p_lcb->transport != BT_TRANSPORT_LE)
+    {
+        L2CAP_TRACE_WARNING ("LE link doesn't exist");
+        return;
+    }
+
+    l2cu_send_peer_ble_credit_based_conn_req (p_ccb);
+    return;
+}
+
+/*******************************************************************************
+**
+** Function         l2cble_credit_based_conn_res
+**
+** Description      This function sends LE Credit Based Connection Response for
+**                  LE connection oriented channels.
+**
+** Returns          void
+**
+*******************************************************************************/
+void l2cble_credit_based_conn_res (tL2C_CCB *p_ccb, UINT16 result)
+{
+    if (!p_ccb)
+        return;
+
+    if (p_ccb->p_lcb && p_ccb->p_lcb->transport != BT_TRANSPORT_LE)
+    {
+        L2CAP_TRACE_WARNING ("LE link doesn't exist");
+        return;
+    }
+
+    l2cu_send_peer_ble_credit_based_conn_res (p_ccb, result);
+    return;
+}
+
+/*******************************************************************************
+**
+** Function         l2cble_send_flow_control_credit
+**
+** Description      This function sends flow control credits for
+**                  LE connection oriented channels.
+**
+** Returns          void
+**
+*******************************************************************************/
+void l2cble_send_flow_control_credit(tL2C_CCB *p_ccb, UINT16 credit_value)
+{
+    if (!p_ccb)
+        return;
+
+    if (p_ccb->p_lcb && p_ccb->p_lcb->transport != BT_TRANSPORT_LE)
+    {
+        L2CAP_TRACE_WARNING ("LE link doesn't exist");
+        return;
+    }
+
+    l2cu_send_peer_ble_flow_control_credit(p_ccb, credit_value);
+    return;
+
+}
+
+/*******************************************************************************
+**
+** Function         l2cble_send_peer_disc_req
+**
+** Description      This function sends disconnect request
+**                  to the peer LE device
+**
+** Returns          void
+**
+*******************************************************************************/
+void l2cble_send_peer_disc_req(tL2C_CCB *p_ccb)
+{
+    L2CAP_TRACE_DEBUG ("%s",__func__);
+    if (!p_ccb)
+        return;
+
+    if (p_ccb->p_lcb && p_ccb->p_lcb->transport != BT_TRANSPORT_LE)
+    {
+        L2CAP_TRACE_WARNING ("LE link doesn't exist");
+        return;
+    }
+
+    l2cu_send_peer_ble_credit_based_disconn_req(p_ccb);
+    return;
+}
+
+/*******************************************************************************
+**
+** Function         l2cble_sec_comp
+**
+** Description      This function is called when security procedure for an LE COC
+**                  link is done
+**
+** Returns          void
+**
+*******************************************************************************/
+void  l2cble_sec_comp(BD_ADDR p_bda, tBT_TRANSPORT transport, void *p_ref_data, UINT8 status)
+{
+    tL2C_LCB *p_lcb = l2cu_find_lcb_by_bd_addr(p_bda, BT_TRANSPORT_LE);
+    tL2CAP_SEC_DATA *p_buf = NULL;
+    UINT8 sec_flag;
+    UINT8 sec_act;
+
+    if (!p_lcb)
+    {
+        L2CAP_TRACE_WARNING ("%s security complete for unknown device", __func__);
+        return;
+    }
+
+    sec_act = p_lcb->sec_act;
+    p_lcb->sec_act = 0;
+
+    if (!fixed_queue_is_empty(p_lcb->le_sec_pending_q))
+    {
+        p_buf = (tL2CAP_SEC_DATA*) fixed_queue_dequeue(p_lcb->le_sec_pending_q);
+        if (!p_buf)
+        {
+            L2CAP_TRACE_WARNING ("%s Security complete for request not initiated from L2CAP",
+                    __func__);
+            return;
+        }
+
+        if (status != BTM_SUCCESS)
+        {
+            (*(p_buf->p_callback))(p_bda, BT_TRANSPORT_LE, p_buf->p_ref_data, status);
+        }
+        else
+        {
+            if (sec_act == BTM_SEC_ENCRYPT_MITM)
+            {
+                BTM_GetSecurityFlagsByTransport(p_bda, &sec_flag, transport);
+                if (sec_flag & BTM_SEC_FLAG_LKEY_AUTHED)
+                    (*(p_buf->p_callback))(p_bda, BT_TRANSPORT_LE, p_buf->p_ref_data, status);
+                else
+                {
+                    L2CAP_TRACE_DEBUG ("%s MITM Protection Not present", __func__);
+                    (*(p_buf->p_callback))(p_bda, BT_TRANSPORT_LE, p_buf->p_ref_data,
+                            BTM_FAILED_ON_SECURITY);
+                }
+            }
+            else
+            {
+                L2CAP_TRACE_DEBUG ("%s MITM Protection not required sec_act = %d",
+                        __func__, p_lcb->sec_act);
+
+                (*(p_buf->p_callback))(p_bda, BT_TRANSPORT_LE, p_buf->p_ref_data, status);
+            }
+        }
+    }
+    else
+    {
+        L2CAP_TRACE_WARNING ("%s Security complete for request not initiated from L2CAP", __func__);
+        return;
+    }
+    osi_free(p_buf);
+
+    while (!fixed_queue_is_empty(p_lcb->le_sec_pending_q))
+    {
+        p_buf = (tL2CAP_SEC_DATA*) fixed_queue_dequeue(p_lcb->le_sec_pending_q);
+
+        if (status != BTM_SUCCESS)
+            (*(p_buf->p_callback))(p_bda, BT_TRANSPORT_LE, p_buf->p_ref_data, status);
+        else
+            l2ble_sec_access_req(p_bda, p_buf->psm, p_buf->is_originator,
+                    p_buf->p_callback, p_buf->p_ref_data);
+
+       osi_free(p_buf);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         l2ble_sec_access_req
+**
+** Description      This function is called by LE COC link to meet the
+**                  security requirement for the link
+**
+** Returns          TRUE - security procedures are started
+**                  FALSE - failure
+**
+*******************************************************************************/
+BOOLEAN l2ble_sec_access_req(BD_ADDR bd_addr, UINT16 psm, BOOLEAN is_originator, tL2CAP_SEC_CBACK *p_callback, void *p_ref_data)
+{
+    L2CAP_TRACE_DEBUG ("%s", __func__);
+    BOOLEAN status;
+    tL2C_LCB *p_lcb = NULL;
+
+    if (!p_callback)
+    {
+        L2CAP_TRACE_ERROR("%s No callback function", __func__);
+        return FALSE;
+    }
+
+    p_lcb = l2cu_find_lcb_by_bd_addr(bd_addr, BT_TRANSPORT_LE);
+
+    if (!p_lcb)
+    {
+        L2CAP_TRACE_ERROR ("%s Security check for unknown device", __func__);
+        p_callback(bd_addr, BT_TRANSPORT_LE, p_ref_data, BTM_UNKNOWN_ADDR);
+        return FALSE;
+    }
+
+    tL2CAP_SEC_DATA *p_buf = (tL2CAP_SEC_DATA*) osi_malloc((UINT16)sizeof(tL2CAP_SEC_DATA));
+    if (!p_buf)
+    {
+        p_callback(bd_addr, BT_TRANSPORT_LE, p_ref_data, BTM_NO_RESOURCES);
+        return FALSE;
+    }
+
+    p_buf->psm = psm;
+    p_buf->is_originator = is_originator;
+    p_buf->p_callback = p_callback;
+    p_buf->p_ref_data = p_ref_data;
+    fixed_queue_enqueue(p_lcb->le_sec_pending_q, p_buf);
+    status = btm_ble_start_sec_check(bd_addr, psm, is_originator, &l2cble_sec_comp, p_ref_data);
+
+    return status;
+}
+#endif /* (BLE_INCLUDED == TRUE) */
diff --git a/rtkbt/code/bt/stack/l2cap/l2c_csm.c b/rtkbt/code/bt/stack/l2cap/l2c_csm.c
new file mode 100755
index 0000000..dedffc8
--- /dev/null
+++ b/rtkbt/code/bt/stack/l2cap/l2c_csm.c
@@ -0,0 +1,1523 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains the L2CAP channel state machine
+ *
+ ******************************************************************************/
+
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+
+#include "bt_target.h"
+#include "bt_common.h"
+#include "hcidefs.h"
+#include "hcimsgs.h"
+#include "l2cdefs.h"
+#include "l2c_int.h"
+#include "btm_int.h"
+#include "btu.h"
+#include "hcimsgs.h"
+
+
+extern fixed_queue_t *btu_general_alarm_queue;
+
+/********************************************************************************/
+/*              L O C A L    F U N C T I O N     P R O T O T Y P E S            */
+/********************************************************************************/
+static void l2c_csm_closed (tL2C_CCB *p_ccb, UINT16 event, void *p_data);
+static void l2c_csm_orig_w4_sec_comp (tL2C_CCB *p_ccb, UINT16 event, void *p_data);
+static void l2c_csm_term_w4_sec_comp (tL2C_CCB *p_ccb, UINT16 event, void *p_data);
+static void l2c_csm_w4_l2cap_connect_rsp (tL2C_CCB *p_ccb, UINT16 event, void *p_data);
+static void l2c_csm_w4_l2ca_connect_rsp (tL2C_CCB *p_ccb, UINT16 event, void *p_data);
+static void l2c_csm_config (tL2C_CCB *p_ccb, UINT16 event, void *p_data);
+static void l2c_csm_open (tL2C_CCB *p_ccb, UINT16 event, void *p_data);
+static void l2c_csm_w4_l2cap_disconnect_rsp (tL2C_CCB *p_ccb, UINT16 event, void *p_data);
+static void l2c_csm_w4_l2ca_disconnect_rsp (tL2C_CCB *p_ccb, UINT16 event, void *p_data);
+
+#if (BT_TRACE_VERBOSE == TRUE)
+static char *l2c_csm_get_event_name (UINT16 event);
+#endif
+
+/*******************************************************************************
+**
+** Function         l2c_csm_execute
+**
+** Description      This function executes the state machine.
+**
+** Returns          void
+**
+*******************************************************************************/
+void l2c_csm_execute (tL2C_CCB *p_ccb, UINT16 event, void *p_data)
+{
+    switch (p_ccb->chnl_state)
+    {
+    case CST_CLOSED:
+        l2c_csm_closed (p_ccb, event, p_data);
+        break;
+
+    case CST_ORIG_W4_SEC_COMP:
+        l2c_csm_orig_w4_sec_comp (p_ccb, event, p_data);
+        break;
+
+    case CST_TERM_W4_SEC_COMP:
+        l2c_csm_term_w4_sec_comp (p_ccb, event, p_data);
+        break;
+
+    case CST_W4_L2CAP_CONNECT_RSP:
+        l2c_csm_w4_l2cap_connect_rsp (p_ccb, event, p_data);
+        break;
+
+    case CST_W4_L2CA_CONNECT_RSP:
+        l2c_csm_w4_l2ca_connect_rsp (p_ccb, event, p_data);
+        break;
+
+    case CST_CONFIG:
+        l2c_csm_config (p_ccb, event, p_data);
+        break;
+
+    case CST_OPEN:
+        l2c_csm_open (p_ccb, event, p_data);
+        break;
+
+    case CST_W4_L2CAP_DISCONNECT_RSP:
+        l2c_csm_w4_l2cap_disconnect_rsp (p_ccb, event, p_data);
+        break;
+
+    case CST_W4_L2CA_DISCONNECT_RSP:
+        l2c_csm_w4_l2ca_disconnect_rsp (p_ccb, event, p_data);
+        break;
+
+    default:
+        L2CAP_TRACE_DEBUG("Unhandled event! event = %d",event);
+        break;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         l2c_csm_closed
+**
+** Description      This function handles events when the channel is in
+**                  CLOSED state. This state exists only when the link is
+**                  being initially established.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void l2c_csm_closed (tL2C_CCB *p_ccb, UINT16 event, void *p_data)
+{
+    tL2C_CONN_INFO          *p_ci = (tL2C_CONN_INFO *)p_data;
+    UINT16                  local_cid = p_ccb->local_cid;
+    tL2CA_DISCONNECT_IND_CB *disconnect_ind;
+    tL2CA_CONNECT_CFM_CB    *connect_cfm;
+
+    if (p_ccb->p_rcb == NULL)
+    {
+#if (BT_TRACE_VERBOSE == TRUE)
+        L2CAP_TRACE_ERROR ("L2CAP - LCID: 0x%04x  st: CLOSED  evt: %s p_rcb == NULL", p_ccb->local_cid, l2c_csm_get_event_name (event));
+#else
+        L2CAP_TRACE_ERROR ("L2CAP - LCID: 0x%04x  st: CLOSED  evt: 0x%04x p_rcb == NULL", p_ccb->local_cid, event);
+#endif
+        return;
+    }
+
+#if (L2CAP_UCD_INCLUDED == TRUE)
+    if ( local_cid == L2CAP_CONNECTIONLESS_CID )
+    {
+        /* check if this event can be processed by UCD */
+        if ( l2c_ucd_process_event (p_ccb, event, p_data) )
+        {
+            /* The event is processed by UCD state machine */
+            return;
+        }
+    }
+#endif
+
+    disconnect_ind = p_ccb->p_rcb->api.pL2CA_DisconnectInd_Cb;
+    connect_cfm    = p_ccb->p_rcb->api.pL2CA_ConnectCfm_Cb;
+
+#if (BT_TRACE_VERBOSE == TRUE)
+    L2CAP_TRACE_EVENT ("L2CAP - LCID: 0x%04x  st: CLOSED  evt: %s", p_ccb->local_cid, l2c_csm_get_event_name (event));
+#else
+    L2CAP_TRACE_EVENT ("L2CAP - st: CLOSED evt: %d", event);
+#endif
+
+    switch (event)
+    {
+    case L2CEVT_LP_DISCONNECT_IND:                  /* Link was disconnected */
+        L2CAP_TRACE_API ("L2CAP - Calling Disconnect_Ind_Cb(), CID: 0x%04x  No Conf Needed", p_ccb->local_cid);
+        l2cu_release_ccb (p_ccb);
+        (*disconnect_ind)(local_cid, FALSE);
+        break;
+
+    case L2CEVT_LP_CONNECT_CFM:                         /* Link came up         */
+        if (p_ccb->p_lcb->transport == BT_TRANSPORT_LE)
+        {
+            p_ccb->chnl_state = CST_ORIG_W4_SEC_COMP;
+            l2ble_sec_access_req(p_ccb->p_lcb->remote_bd_addr, p_ccb->p_rcb->psm, TRUE,
+                    &l2c_link_sec_comp, p_ccb);
+        }
+        else
+        {
+            p_ccb->chnl_state = CST_ORIG_W4_SEC_COMP;
+            btm_sec_l2cap_access_req (p_ccb->p_lcb->remote_bd_addr, p_ccb->p_rcb->psm,
+                                      p_ccb->p_lcb->handle, TRUE, &l2c_link_sec_comp, p_ccb);
+        }
+        break;
+
+    case L2CEVT_LP_CONNECT_CFM_NEG:                     /* Link failed          */
+        /* Disconnect unless ACL collision and upper layer wants to handle it */
+        if (p_ci->status != HCI_ERR_CONNECTION_EXISTS
+            || !btm_acl_notif_conn_collision(p_ccb->p_lcb->remote_bd_addr))
+        {
+            L2CAP_TRACE_API ("L2CAP - Calling ConnectCfm_Cb(), CID: 0x%04x  Status: %d", p_ccb->local_cid, p_ci->status);
+            l2cu_release_ccb (p_ccb);
+            (*connect_cfm)(local_cid, p_ci->status);
+        }
+        break;
+
+    case L2CEVT_L2CA_CONNECT_REQ:                       /* API connect request  */
+        if (p_ccb->p_lcb->transport == BT_TRANSPORT_LE)
+        {
+            p_ccb->chnl_state = CST_ORIG_W4_SEC_COMP;
+            l2ble_sec_access_req(p_ccb->p_lcb->remote_bd_addr, p_ccb->p_rcb->psm, TRUE,
+                    &l2c_link_sec_comp, p_ccb);
+        }
+        else
+        {
+            /* Cancel sniff mode if needed */
+            {
+                tBTM_PM_PWR_MD settings;
+                memset((void*)&settings, 0, sizeof(settings));
+                settings.mode = BTM_PM_MD_ACTIVE;
+/* COVERITY
+Event uninit_use_in_call: Using uninitialized value "settings" (field "settings".timeout uninitialized) in call to function "BTM_SetPowerMode" [details]
+Event uninit_use_in_call: Using uninitialized value "settings.max" in call to function "BTM_SetPowerMode" [details]
+Event uninit_use_in_call: Using uninitialized value "settings.min" in call to function "BTM_SetPowerMode"
+// FALSE-POSITIVE error from Coverity test-tool. Please do NOT remove following comment.
+// coverity[uninit_use_in_call] False-positive: setting the mode to BTM_PM_MD_ACTIVE only uses settings.mode the other data members of tBTM_PM_PWR_MD are ignored
+*/
+                BTM_SetPowerMode (BTM_PM_SET_ONLY_ID, p_ccb->p_lcb->remote_bd_addr, &settings);
+            }
+
+            /* If sec access does not result in started SEC_COM or COMP_NEG are already processed */
+            if (btm_sec_l2cap_access_req (p_ccb->p_lcb->remote_bd_addr, p_ccb->p_rcb->psm,
+                                          p_ccb->p_lcb->handle, TRUE, &l2c_link_sec_comp, p_ccb) == BTM_CMD_STARTED)
+                p_ccb->chnl_state = CST_ORIG_W4_SEC_COMP;
+        }
+        break;
+
+    case L2CEVT_SEC_COMP:
+        p_ccb->chnl_state = CST_W4_L2CAP_CONNECT_RSP;
+
+        /* Wait for the info resp in this state before sending connect req (if needed) */
+        if (!p_ccb->p_lcb->w4_info_rsp)
+        {
+            /* Need to have at least one compatible channel to continue */
+            if (!l2c_fcr_chk_chan_modes(p_ccb))
+            {
+                l2cu_release_ccb (p_ccb);
+                (*p_ccb->p_rcb->api.pL2CA_ConnectCfm_Cb)(local_cid, L2CAP_CONN_NO_LINK);
+            }
+            else
+            {
+                l2cu_send_peer_connect_req (p_ccb);
+                alarm_set_on_queue(p_ccb->l2c_ccb_timer,
+                                   L2CAP_CHNL_CONNECT_TIMEOUT_MS,
+                                   l2c_ccb_timer_timeout, p_ccb,
+                                   btu_general_alarm_queue);
+            }
+        }
+        break;
+
+    case L2CEVT_SEC_COMP_NEG:                           /* something is really bad with security */
+        L2CAP_TRACE_API ("L2CAP - Calling ConnectCfm_Cb(), CID: 0x%04x  Status: %d", p_ccb->local_cid, L2CAP_CONN_TIMEOUT);
+        l2cu_release_ccb (p_ccb);
+        (*connect_cfm)(local_cid, L2CAP_CONN_SECURITY_BLOCK);
+        break;
+
+    case L2CEVT_L2CAP_CONNECT_REQ:                      /* Peer connect request */
+        /* stop link timer to avoid race condition between A2MP, Security, and L2CAP */
+        alarm_cancel(p_ccb->p_lcb->l2c_lcb_timer);
+
+        if (p_ccb->p_lcb->transport == BT_TRANSPORT_LE)
+        {
+            p_ccb->chnl_state = CST_TERM_W4_SEC_COMP;
+             l2ble_sec_access_req(p_ccb->p_lcb->remote_bd_addr, p_ccb->p_rcb->psm, FALSE,
+                    &l2c_link_sec_comp, p_ccb);
+        }
+        else
+        {
+            /* Cancel sniff mode if needed */
+            {
+                tBTM_PM_PWR_MD settings;
+                memset((void*)&settings, 0, sizeof(settings));
+                settings.mode = BTM_PM_MD_ACTIVE;
+/* COVERITY
+Event uninit_use_in_call: Using uninitialized value "settings" (field "settings".timeout uninitialized) in call to function "BTM_SetPowerMode" [details]
+Event uninit_use_in_call: Using uninitialized value "settings.max" in call to function "BTM_SetPowerMode" [details]
+Event uninit_use_in_call: Using uninitialized value "settings.min" in call to function "BTM_SetPowerMode"
+// FALSE-POSITIVE error from Coverity test-tool. Please do NOT remove following comment.
+// coverity[uninit_use_in_call] False-positive: setting the mode to BTM_PM_MD_ACTIVE only uses settings.mode the other data members of tBTM_PM_PWR_MD are ignored
+*/
+                BTM_SetPowerMode (BTM_PM_SET_ONLY_ID, p_ccb->p_lcb->remote_bd_addr, &settings);
+            }
+
+            p_ccb->chnl_state = CST_TERM_W4_SEC_COMP;
+            if (btm_sec_l2cap_access_req (p_ccb->p_lcb->remote_bd_addr, p_ccb->p_rcb->psm,
+                                      p_ccb->p_lcb->handle, FALSE, &l2c_link_sec_comp, p_ccb) == BTM_CMD_STARTED)
+            {
+                /* started the security process, tell the peer to set a longer timer */
+                l2cu_send_peer_connect_rsp(p_ccb, L2CAP_CONN_PENDING, 0);
+            }
+        }
+        break;
+
+    case L2CEVT_TIMEOUT:
+        L2CAP_TRACE_API ("L2CAP - Calling ConnectCfm_Cb(), CID: 0x%04x  Status: %d", p_ccb->local_cid, L2CAP_CONN_TIMEOUT);
+        l2cu_release_ccb (p_ccb);
+        (*connect_cfm)(local_cid, L2CAP_CONN_TIMEOUT);
+        break;
+
+    case L2CEVT_L2CAP_DATA:                         /* Peer data packet rcvd    */
+    case L2CEVT_L2CA_DATA_WRITE:                    /* Upper layer data to send */
+        osi_free(p_data);
+        break;
+
+    case L2CEVT_L2CA_DISCONNECT_REQ:                 /* Upper wants to disconnect */
+        l2cu_release_ccb (p_ccb);
+        break;
+
+    case L2CEVT_L2CA_SEND_FLOW_CONTROL_CREDIT:
+    case L2CEVT_L2CAP_RECV_FLOW_CONTROL_CREDIT:
+        osi_free(p_data);
+        break;
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         l2c_csm_orig_w4_sec_comp
+**
+** Description      This function handles events when the channel is in
+**                  CST_ORIG_W4_SEC_COMP state.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void l2c_csm_orig_w4_sec_comp (tL2C_CCB *p_ccb, UINT16 event, void *p_data)
+{
+    tL2CA_DISCONNECT_IND_CB *disconnect_ind = p_ccb->p_rcb->api.pL2CA_DisconnectInd_Cb;
+    tL2CA_CONNECT_CFM_CB    *connect_cfm = p_ccb->p_rcb->api.pL2CA_ConnectCfm_Cb;
+    UINT16                  local_cid = p_ccb->local_cid;
+
+#if (BT_TRACE_VERBOSE == TRUE)
+    L2CAP_TRACE_EVENT ("L2CAP - LCID: 0x%04x  st: ORIG_W4_SEC_COMP  evt: %s", p_ccb->local_cid, l2c_csm_get_event_name (event));
+#else
+    L2CAP_TRACE_EVENT ("L2CAP - st: ORIG_W4_SEC_COMP evt: %d", event);
+#endif
+
+#if (L2CAP_UCD_INCLUDED == TRUE)
+    if ( local_cid == L2CAP_CONNECTIONLESS_CID )
+    {
+        /* check if this event can be processed by UCD */
+        if ( l2c_ucd_process_event (p_ccb, event, p_data) )
+        {
+            /* The event is processed by UCD state machine */
+            return;
+        }
+    }
+#endif
+
+    switch (event)
+    {
+    case L2CEVT_LP_DISCONNECT_IND:                   /* Link was disconnected */
+        L2CAP_TRACE_API ("L2CAP - Calling Disconnect_Ind_Cb(), CID: 0x%04x  No Conf Needed", p_ccb->local_cid);
+        l2cu_release_ccb (p_ccb);
+        (*disconnect_ind)(local_cid, FALSE);
+        break;
+
+    case L2CEVT_SEC_RE_SEND_CMD:                    /* BTM has enough info to proceed */
+    case L2CEVT_LP_CONNECT_CFM:                     /* Link came up         */
+        if (p_ccb->p_lcb->transport == BT_TRANSPORT_LE)
+        {
+             l2ble_sec_access_req(p_ccb->p_lcb->remote_bd_addr, p_ccb->p_rcb->psm, FALSE,
+                    &l2c_link_sec_comp, p_ccb);
+        }
+        else
+        {
+            btm_sec_l2cap_access_req (p_ccb->p_lcb->remote_bd_addr, p_ccb->p_rcb->psm,
+                                  p_ccb->p_lcb->handle, TRUE, &l2c_link_sec_comp, p_ccb);
+        }
+        break;
+
+    case L2CEVT_SEC_COMP:                            /* Security completed success */
+        /* Wait for the info resp in this state before sending connect req (if needed) */
+        p_ccb->chnl_state = CST_W4_L2CAP_CONNECT_RSP;
+        if (p_ccb->p_lcb->transport == BT_TRANSPORT_LE)
+        {
+            alarm_set_on_queue(p_ccb->l2c_ccb_timer,
+                               L2CAP_CHNL_CONNECT_TIMEOUT_MS,
+                               l2c_ccb_timer_timeout, p_ccb,
+                               btu_general_alarm_queue);
+            l2cble_credit_based_conn_req (p_ccb);          /* Start Connection     */
+        }
+        else
+        {
+            if (!p_ccb->p_lcb->w4_info_rsp)
+            {
+                /* Need to have at least one compatible channel to continue */
+                if (!l2c_fcr_chk_chan_modes(p_ccb))
+                {
+                    l2cu_release_ccb (p_ccb);
+                    (*connect_cfm)(local_cid, L2CAP_CONN_NO_LINK);
+                }
+                else
+                {
+                    alarm_set_on_queue(p_ccb->l2c_ccb_timer,
+                                       L2CAP_CHNL_CONNECT_TIMEOUT_MS,
+                                       l2c_ccb_timer_timeout, p_ccb,
+                                       btu_general_alarm_queue);
+                    l2cu_send_peer_connect_req (p_ccb);          /* Start Connection     */
+                }
+            }
+        }
+        break;
+
+    case L2CEVT_SEC_COMP_NEG:
+        L2CAP_TRACE_API ("L2CAP - Calling ConnectCfm_Cb(), CID: 0x%04x  Status: %d", p_ccb->local_cid, HCI_ERR_AUTH_FAILURE);
+
+        /* If last channel immediately disconnect the ACL for better security.
+           Also prevents a race condition between BTM and L2CAP */
+        if ( (p_ccb == p_ccb->p_lcb->ccb_queue.p_first_ccb) && (p_ccb == p_ccb->p_lcb->ccb_queue.p_last_ccb) )
+        {
+            p_ccb->p_lcb->idle_timeout = 0;
+        }
+
+        l2cu_release_ccb (p_ccb);
+        (*connect_cfm)(local_cid, HCI_ERR_AUTH_FAILURE);
+        break;
+
+    case L2CEVT_L2CA_DATA_WRITE:                    /* Upper layer data to send */
+    case L2CEVT_L2CAP_DATA:                         /* Peer data packet rcvd    */
+        osi_free(p_data);
+        break;
+
+    case L2CEVT_L2CA_DISCONNECT_REQ:                 /* Upper wants to disconnect */
+        /* Tell security manager to abort */
+        btm_sec_abort_access_req (p_ccb->p_lcb->remote_bd_addr);
+
+        l2cu_release_ccb (p_ccb);
+        break;
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         l2c_csm_term_w4_sec_comp
+**
+** Description      This function handles events when the channel is in
+**                  CST_TERM_W4_SEC_COMP state.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void l2c_csm_term_w4_sec_comp (tL2C_CCB *p_ccb, UINT16 event, void *p_data)
+{
+#if (BT_TRACE_VERBOSE == TRUE)
+    L2CAP_TRACE_EVENT ("L2CAP - LCID: 0x%04x  st: TERM_W4_SEC_COMP  evt: %s", p_ccb->local_cid, l2c_csm_get_event_name (event));
+#else
+    L2CAP_TRACE_EVENT ("L2CAP - st: TERM_W4_SEC_COMP evt: %d", event);
+#endif
+
+#if (L2CAP_UCD_INCLUDED == TRUE)
+    if ( p_ccb->local_cid == L2CAP_CONNECTIONLESS_CID )
+    {
+        /* check if this event can be processed by UCD */
+        if ( l2c_ucd_process_event (p_ccb, event, p_data) )
+        {
+            /* The event is processed by UCD state machine */
+            return;
+        }
+    }
+#endif
+
+    switch (event)
+    {
+    case L2CEVT_LP_DISCONNECT_IND:                  /* Link was disconnected */
+        /* Tell security manager to abort */
+        btm_sec_abort_access_req (p_ccb->p_lcb->remote_bd_addr);
+
+        l2cu_release_ccb (p_ccb);
+        break;
+
+    case L2CEVT_SEC_COMP:
+        p_ccb->chnl_state = CST_W4_L2CA_CONNECT_RSP;
+
+        /* Wait for the info resp in next state before sending connect ind (if needed) */
+        if (!p_ccb->p_lcb->w4_info_rsp)
+        {
+            /* Don't need to get info from peer or already retrieved so continue */
+            alarm_set_on_queue(p_ccb->l2c_ccb_timer,
+                               L2CAP_CHNL_CONNECT_TIMEOUT_MS,
+                               l2c_ccb_timer_timeout, p_ccb,
+                               btu_general_alarm_queue);
+            L2CAP_TRACE_API ("L2CAP - Calling Connect_Ind_Cb(), CID: 0x%04x", p_ccb->local_cid);
+
+            (*p_ccb->p_rcb->api.pL2CA_ConnectInd_Cb) (p_ccb->p_lcb->remote_bd_addr, p_ccb->local_cid,
+                                                      p_ccb->p_rcb->psm, p_ccb->remote_id);
+        }
+        else
+        {
+            /*
+            ** L2CAP Connect Response will be sent out by 3 sec timer expiration
+            ** because Bluesoleil doesn't respond to L2CAP Information Request.
+            ** Bluesoleil seems to disconnect ACL link as failure case, because
+            ** it takes too long (4~7secs) to get response.
+            ** product version : Bluesoleil 2.1.1.0 EDR Release 060123
+            ** stack version   : 05.04.11.20060119
+            */
+
+            /* Waiting for the info resp, tell the peer to set a longer timer */
+            l2cu_send_peer_connect_rsp(p_ccb, L2CAP_CONN_PENDING, 0);
+        }
+        break;
+
+    case L2CEVT_SEC_COMP_NEG:
+        if (((tL2C_CONN_INFO *)p_data)->status == BTM_DELAY_CHECK)
+        {
+            /* start a timer - encryption change not received before L2CAP connect req */
+            alarm_set_on_queue(p_ccb->l2c_ccb_timer,
+                               L2CAP_DELAY_CHECK_SM4_TIMEOUT_MS,
+                               l2c_ccb_timer_timeout, p_ccb,
+                               btu_general_alarm_queue);
+        }
+        else
+        {
+            if (p_ccb->p_lcb->transport == BT_TRANSPORT_LE)
+                l2cu_reject_ble_connection(p_ccb->p_lcb, p_ccb->remote_id, L2CAP_LE_INSUFFICIENT_AUTHENTICATION);
+            else
+                l2cu_send_peer_connect_rsp (p_ccb, L2CAP_CONN_SECURITY_BLOCK, 0);
+            l2cu_release_ccb (p_ccb);
+        }
+        break;
+
+    case L2CEVT_L2CA_DATA_WRITE:                    /* Upper layer data to send */
+    case L2CEVT_L2CAP_DATA:                         /* Peer data packet rcvd    */
+        osi_free(p_data);
+        break;
+
+    case L2CEVT_L2CA_DISCONNECT_REQ:                 /* Upper wants to disconnect */
+        l2cu_release_ccb (p_ccb);
+        break;
+
+    case L2CEVT_L2CAP_DISCONNECT_REQ:                  /* Peer disconnected request */
+        l2cu_send_peer_disc_rsp (p_ccb->p_lcb, p_ccb->remote_id, p_ccb->local_cid, p_ccb->remote_cid);
+
+        /* Tell security manager to abort */
+        btm_sec_abort_access_req (p_ccb->p_lcb->remote_bd_addr);
+
+        l2cu_release_ccb (p_ccb);
+        break;
+
+    case L2CEVT_TIMEOUT:
+        /* SM4 related. */
+        if (!btsnd_hcic_disconnect (p_ccb->p_lcb->handle, HCI_ERR_AUTH_FAILURE))
+        {
+            L2CAP_TRACE_API ("L2CAP - Calling btsnd_hcic_disconnect for handle %i failed", p_ccb->p_lcb->handle);
+            alarm_set_on_queue(p_ccb->l2c_ccb_timer, BT_1SEC_TIMEOUT_MS,
+                               l2c_ccb_timer_timeout, p_ccb,
+                               btu_general_alarm_queue);
+        }
+        break;
+
+    case L2CEVT_SEC_RE_SEND_CMD:                    /* BTM has enough info to proceed */
+        btm_sec_l2cap_access_req (p_ccb->p_lcb->remote_bd_addr, p_ccb->p_rcb->psm,
+                                  p_ccb->p_lcb->handle, FALSE, &l2c_link_sec_comp, p_ccb);
+        break;
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         l2c_csm_w4_l2cap_connect_rsp
+**
+** Description      This function handles events when the channel is in
+**                  CST_W4_L2CAP_CONNECT_RSP state.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void l2c_csm_w4_l2cap_connect_rsp (tL2C_CCB *p_ccb, UINT16 event, void *p_data)
+{
+    tL2C_CONN_INFO          *p_ci = (tL2C_CONN_INFO *)p_data;
+    tL2CA_DISCONNECT_IND_CB *disconnect_ind = p_ccb->p_rcb->api.pL2CA_DisconnectInd_Cb;
+    tL2CA_CONNECT_CFM_CB    *connect_cfm = p_ccb->p_rcb->api.pL2CA_ConnectCfm_Cb;
+    UINT16                  local_cid = p_ccb->local_cid;
+
+#if (BT_TRACE_VERBOSE == TRUE)
+    L2CAP_TRACE_EVENT ("L2CAP - LCID: 0x%04x  st: W4_L2CAP_CON_RSP  evt: %s", p_ccb->local_cid, l2c_csm_get_event_name (event));
+#else
+    L2CAP_TRACE_EVENT ("L2CAP - st: W4_L2CAP_CON_RSP evt: %d", event);
+#endif
+
+    switch (event)
+    {
+    case L2CEVT_LP_DISCONNECT_IND:                  /* Link was disconnected */
+        /* Send disc indication unless peer to peer race condition AND normal disconnect */
+        /* *((UINT8 *)p_data) != HCI_ERR_PEER_USER happens when peer device try to disconnect for normal reason */
+        p_ccb->chnl_state = CST_CLOSED;
+        if ((p_ccb->flags & CCB_FLAG_NO_RETRY) || !p_data || (*((UINT8 *)p_data) != HCI_ERR_PEER_USER))
+        {
+            L2CAP_TRACE_API ("L2CAP - Calling Disconnect_Ind_Cb(), CID: 0x%04x  No Conf Needed",
+                              p_ccb->local_cid);
+            l2cu_release_ccb (p_ccb);
+            (*disconnect_ind)(local_cid, FALSE);
+        }
+        p_ccb->flags |= CCB_FLAG_NO_RETRY;
+        break;
+
+    case L2CEVT_L2CAP_CONNECT_RSP:                  /* Got peer connect confirm */
+        p_ccb->remote_cid = p_ci->remote_cid;
+        if (p_ccb->p_lcb->transport == BT_TRANSPORT_LE)
+        {
+            /* Connection is completed */
+            alarm_cancel(p_ccb->l2c_ccb_timer);
+            p_ccb->chnl_state = CST_OPEN;
+        }
+        else
+        {
+            p_ccb->chnl_state = CST_CONFIG;
+            alarm_set_on_queue(p_ccb->l2c_ccb_timer, L2CAP_CHNL_CFG_TIMEOUT_MS,
+                               l2c_ccb_timer_timeout, p_ccb,
+                               btu_general_alarm_queue);
+        }
+        L2CAP_TRACE_API ("L2CAP - Calling Connect_Cfm_Cb(), CID: 0x%04x, Success", p_ccb->local_cid);
+
+        (*p_ccb->p_rcb->api.pL2CA_ConnectCfm_Cb)(local_cid, L2CAP_CONN_OK);
+        break;
+
+    case L2CEVT_L2CAP_CONNECT_RSP_PND:              /* Got peer connect pending */
+        p_ccb->remote_cid = p_ci->remote_cid;
+        alarm_set_on_queue(p_ccb->l2c_ccb_timer,
+                           L2CAP_CHNL_CONNECT_EXT_TIMEOUT_MS,
+                           l2c_ccb_timer_timeout, p_ccb,
+                           btu_general_alarm_queue);
+        if (p_ccb->p_rcb->api.pL2CA_ConnectPnd_Cb)
+        {
+            L2CAP_TRACE_API ("L2CAP - Calling Connect_Pnd_Cb(), CID: 0x%04x", p_ccb->local_cid);
+            (*p_ccb->p_rcb->api.pL2CA_ConnectPnd_Cb)(p_ccb->local_cid);
+        }
+        break;
+
+    case L2CEVT_L2CAP_CONNECT_RSP_NEG:              /* Peer rejected connection */
+        L2CAP_TRACE_API ("L2CAP - Calling Connect_Cfm_Cb(), CID: 0x%04x, Failure Code: %d", p_ccb->local_cid, p_ci->l2cap_result);
+        l2cu_release_ccb (p_ccb);
+        (*connect_cfm)(local_cid, p_ci->l2cap_result);
+        break;
+
+    case L2CEVT_TIMEOUT:
+        L2CAP_TRACE_API ("L2CAP - Calling Connect_Cfm_Cb(), CID: 0x%04x, Timeout", p_ccb->local_cid);
+        l2cu_release_ccb (p_ccb);
+        (*connect_cfm)(local_cid, L2CAP_CONN_TIMEOUT);
+        break;
+
+    case L2CEVT_L2CA_DISCONNECT_REQ:                 /* Upper wants to disconnect */
+        /* If we know peer CID from connect pending, we can send disconnect */
+        if (p_ccb->remote_cid != 0)
+        {
+            l2cu_send_peer_disc_req (p_ccb);
+            p_ccb->chnl_state = CST_W4_L2CAP_DISCONNECT_RSP;
+            alarm_set_on_queue(p_ccb->l2c_ccb_timer,
+                               L2CAP_CHNL_DISCONNECT_TIMEOUT_MS,
+                               l2c_ccb_timer_timeout, p_ccb,
+                               btu_general_alarm_queue);
+        }
+        else
+            l2cu_release_ccb (p_ccb);
+        break;
+
+    case L2CEVT_L2CA_DATA_WRITE:                    /* Upper layer data to send */
+    case L2CEVT_L2CAP_DATA:                         /* Peer data packet rcvd    */
+        osi_free(p_data);
+        break;
+
+    case L2CEVT_L2CAP_INFO_RSP:
+        /* Need to have at least one compatible channel to continue */
+        if (!l2c_fcr_chk_chan_modes(p_ccb))
+        {
+            l2cu_release_ccb (p_ccb);
+            (*connect_cfm)(local_cid, L2CAP_CONN_NO_LINK);
+        }
+        else
+        {
+            /* We have feature info, so now send peer connect request */
+            alarm_set_on_queue(p_ccb->l2c_ccb_timer,
+                               L2CAP_CHNL_CONNECT_TIMEOUT_MS,
+                               l2c_ccb_timer_timeout, p_ccb,
+                               btu_general_alarm_queue);
+            l2cu_send_peer_connect_req (p_ccb);          /* Start Connection     */
+        }
+        break;
+
+    case L2CEVT_L2CA_SEND_FLOW_CONTROL_CREDIT:
+    case L2CEVT_L2CAP_RECV_FLOW_CONTROL_CREDIT:
+        osi_free(p_data);
+        break;
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         l2c_csm_w4_l2ca_connect_rsp
+**
+** Description      This function handles events when the channel is in
+**                  CST_W4_L2CA_CONNECT_RSP state.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void l2c_csm_w4_l2ca_connect_rsp (tL2C_CCB *p_ccb, UINT16 event, void *p_data)
+{
+    tL2C_CONN_INFO          *p_ci;
+    tL2CA_DISCONNECT_IND_CB *disconnect_ind = p_ccb->p_rcb->api.pL2CA_DisconnectInd_Cb;
+    UINT16                  local_cid = p_ccb->local_cid;
+
+#if (BT_TRACE_VERBOSE == TRUE)
+    L2CAP_TRACE_EVENT ("L2CAP - LCID: 0x%04x  st: W4_L2CA_CON_RSP  evt: %s", p_ccb->local_cid, l2c_csm_get_event_name (event));
+#else
+    L2CAP_TRACE_EVENT ("L2CAP - st: W4_L2CA_CON_RSP evt: %d", event);
+#endif
+
+    switch (event)
+    {
+    case L2CEVT_LP_DISCONNECT_IND:                  /* Link was disconnected */
+        L2CAP_TRACE_API ("L2CAP - Calling Disconnect_Ind_Cb(), CID: 0x%04x  No Conf Needed", p_ccb->local_cid);
+        l2cu_release_ccb (p_ccb);
+        (*disconnect_ind)(local_cid, FALSE);
+        break;
+
+    case L2CEVT_L2CA_CONNECT_RSP:
+        p_ci = (tL2C_CONN_INFO *)p_data;
+        if (p_ccb->p_lcb->transport == BT_TRANSPORT_LE)
+        {
+            /* Result should be OK or Reject */
+            if ((!p_ci) || (p_ci->l2cap_result == L2CAP_CONN_OK))
+            {
+                l2cble_credit_based_conn_res (p_ccb, L2CAP_CONN_OK);
+                p_ccb->chnl_state = CST_OPEN;
+                alarm_cancel(p_ccb->l2c_ccb_timer);
+            }
+            else
+            {
+                l2cble_credit_based_conn_res (p_ccb, p_ci->l2cap_result);
+                l2cu_release_ccb (p_ccb);
+            }
+        }
+        else
+        {
+            /* Result should be OK or PENDING */
+            if ((!p_ci) || (p_ci->l2cap_result == L2CAP_CONN_OK))
+            {
+                l2cu_send_peer_connect_rsp (p_ccb, L2CAP_CONN_OK, 0);
+                p_ccb->chnl_state = CST_CONFIG;
+                alarm_set_on_queue(p_ccb->l2c_ccb_timer,
+                                   L2CAP_CHNL_CFG_TIMEOUT_MS,
+                                   l2c_ccb_timer_timeout, p_ccb,
+                                   btu_general_alarm_queue);
+            }
+            else
+            {
+                /* If pending, stay in same state and start extended timer */
+                l2cu_send_peer_connect_rsp (p_ccb, p_ci->l2cap_result, p_ci->l2cap_status);
+                alarm_set_on_queue(p_ccb->l2c_ccb_timer,
+                                   L2CAP_CHNL_CONNECT_EXT_TIMEOUT_MS,
+                                   l2c_ccb_timer_timeout, p_ccb,
+                                   btu_general_alarm_queue);
+            }
+        }
+        break;
+
+    case L2CEVT_L2CA_CONNECT_RSP_NEG:
+        p_ci = (tL2C_CONN_INFO *)p_data;
+        if (p_ccb->p_lcb->transport == BT_TRANSPORT_LE)
+            l2cble_credit_based_conn_res (p_ccb, p_ci->l2cap_result);
+        else
+            l2cu_send_peer_connect_rsp (p_ccb, p_ci->l2cap_result, p_ci->l2cap_status);
+        l2cu_release_ccb (p_ccb);
+        break;
+
+    case L2CEVT_TIMEOUT:
+        l2cu_send_peer_connect_rsp (p_ccb, L2CAP_CONN_NO_PSM, 0);
+        L2CAP_TRACE_API ("L2CAP - Calling Disconnect_Ind_Cb(), CID: 0x%04x  No Conf Needed", p_ccb->local_cid);
+        l2cu_release_ccb (p_ccb);
+        (*disconnect_ind)(local_cid, FALSE);
+        break;
+
+    case L2CEVT_L2CA_DATA_WRITE:                    /* Upper layer data to send */
+    case L2CEVT_L2CAP_DATA:                         /* Peer data packet rcvd    */
+        osi_free(p_data);
+        break;
+
+    case L2CEVT_L2CA_DISCONNECT_REQ:                 /* Upper wants to disconnect */
+        l2cu_send_peer_disc_req (p_ccb);
+        p_ccb->chnl_state = CST_W4_L2CAP_DISCONNECT_RSP;
+        alarm_set_on_queue(p_ccb->l2c_ccb_timer,
+                           L2CAP_CHNL_DISCONNECT_TIMEOUT_MS,
+                           l2c_ccb_timer_timeout, p_ccb,
+                           btu_general_alarm_queue);
+        break;
+
+    case L2CEVT_L2CAP_INFO_RSP:
+        /* We have feature info, so now give the upper layer connect IND */
+        alarm_set_on_queue(p_ccb->l2c_ccb_timer,
+                           L2CAP_CHNL_CONNECT_TIMEOUT_MS,
+                           l2c_ccb_timer_timeout, p_ccb,
+                           btu_general_alarm_queue);
+        L2CAP_TRACE_API ("L2CAP - Calling Connect_Ind_Cb(), CID: 0x%04x", p_ccb->local_cid);
+
+        (*p_ccb->p_rcb->api.pL2CA_ConnectInd_Cb) (p_ccb->p_lcb->remote_bd_addr,
+                                                  p_ccb->local_cid,
+                                                  p_ccb->p_rcb->psm,
+                                                  p_ccb->remote_id);
+        break;
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         l2c_csm_config
+**
+** Description      This function handles events when the channel is in
+**                  CONFIG state.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void l2c_csm_config (tL2C_CCB *p_ccb, UINT16 event, void *p_data)
+{
+    tL2CAP_CFG_INFO         *p_cfg = (tL2CAP_CFG_INFO *)p_data;
+    tL2CA_DISCONNECT_IND_CB *disconnect_ind = p_ccb->p_rcb->api.pL2CA_DisconnectInd_Cb;
+    UINT16                  local_cid = p_ccb->local_cid;
+    UINT8                   cfg_result;
+
+#if (BT_TRACE_VERBOSE == TRUE)
+    L2CAP_TRACE_EVENT ("L2CAP - LCID: 0x%04x  st: CONFIG  evt: %s", p_ccb->local_cid, l2c_csm_get_event_name (event));
+#else
+    L2CAP_TRACE_EVENT ("L2CAP - st: CONFIG evt: %d", event);
+#endif
+
+    switch (event)
+    {
+    case L2CEVT_LP_DISCONNECT_IND:                  /* Link was disconnected */
+        L2CAP_TRACE_API ("L2CAP - Calling Disconnect_Ind_Cb(), CID: 0x%04x  No Conf Needed", p_ccb->local_cid);
+        l2cu_release_ccb (p_ccb);
+        (*disconnect_ind)(local_cid, FALSE);
+        break;
+
+    case L2CEVT_L2CAP_CONFIG_REQ:                  /* Peer config request   */
+
+        if ((cfg_result = l2cu_process_peer_cfg_req (p_ccb, p_cfg)) == L2CAP_PEER_CFG_OK)
+        {
+            L2CAP_TRACE_EVENT ("L2CAP - Calling Config_Req_Cb(), CID: 0x%04x, C-bit %d",
+                                p_ccb->local_cid, (p_cfg->flags & L2CAP_CFG_FLAGS_MASK_CONT));
+            (*p_ccb->p_rcb->api.pL2CA_ConfigInd_Cb)(p_ccb->local_cid, p_cfg);
+        }
+        else if (cfg_result == L2CAP_PEER_CFG_DISCONNECT)
+        {
+            /* Disconnect if channels are incompatible */
+            L2CAP_TRACE_EVENT ("L2CAP - incompatible configurations disconnect");
+            l2cu_disconnect_chnl (p_ccb);
+        }
+        else /* Return error to peer so he can renegotiate if possible */
+        {
+            L2CAP_TRACE_EVENT ("L2CAP - incompatible configurations trying reconfig");
+            l2cu_send_peer_config_rsp (p_ccb, p_cfg);
+        }
+        break;
+
+    case L2CEVT_L2CAP_CONFIG_RSP:                  /* Peer config response  */
+         l2cu_process_peer_cfg_rsp (p_ccb, p_cfg);
+
+         if (p_cfg->result != L2CAP_CFG_PENDING)
+         {
+             /* TBD: When config options grow beyong minimum MTU (48 bytes)
+              *      logic needs to be added to handle responses with
+              *      continuation bit set in flags field.
+              *       1. Send additional config request out until C-bit is cleared in response
+              */
+             p_ccb->config_done |= OB_CFG_DONE;
+
+             if (p_ccb->config_done & IB_CFG_DONE)
+             {
+                /* Verify two sides are in compatible modes before continuing */
+                if (p_ccb->our_cfg.fcr.mode != p_ccb->peer_cfg.fcr.mode)
+                {
+                    l2cu_send_peer_disc_req (p_ccb);
+                    L2CAP_TRACE_WARNING ("L2CAP - Calling Disconnect_Ind_Cb(Incompatible CFG), CID: 0x%04x  No Conf Needed", p_ccb->local_cid);
+                    l2cu_release_ccb (p_ccb);
+                    (*disconnect_ind)(local_cid, FALSE);
+                    break;
+                }
+
+                p_ccb->config_done |= RECONFIG_FLAG;
+                p_ccb->chnl_state = CST_OPEN;
+                l2c_link_adjust_chnl_allocation ();
+                alarm_cancel(p_ccb->l2c_ccb_timer);
+
+                /* If using eRTM and waiting for an ACK, restart the ACK timer */
+                if (p_ccb->fcrb.wait_ack)
+                    l2c_fcr_start_timer(p_ccb);
+
+                /*
+                ** check p_ccb->our_cfg.fcr.mon_tout and p_ccb->our_cfg.fcr.rtrans_tout
+                ** we may set them to zero when sending config request during renegotiation
+                */
+                if ((p_ccb->our_cfg.fcr.mode == L2CAP_FCR_ERTM_MODE)
+                   &&((p_ccb->our_cfg.fcr.mon_tout == 0)||(p_ccb->our_cfg.fcr.rtrans_tout)))
+                {
+                    l2c_fcr_adj_monitor_retran_timeout (p_ccb);
+                }
+
+#if (L2CAP_ERTM_STATS == TRUE)
+                p_ccb->fcrb.connect_tick_count = time_get_os_boottime_ms();
+#endif
+                /* See if we can forward anything on the hold queue */
+                if (!fixed_queue_is_empty(p_ccb->xmit_hold_q))
+                {
+                    l2c_link_check_send_pkts (p_ccb->p_lcb, NULL, NULL);
+                }
+            }
+        }
+
+        L2CAP_TRACE_API ("L2CAP - Calling Config_Rsp_Cb(), CID: 0x%04x", p_ccb->local_cid);
+        (*p_ccb->p_rcb->api.pL2CA_ConfigCfm_Cb)(p_ccb->local_cid, p_cfg);
+        break;
+
+    case L2CEVT_L2CAP_CONFIG_RSP_NEG:              /* Peer config error rsp */
+        /* Disable the Timer */
+         alarm_cancel(p_ccb->l2c_ccb_timer);
+
+        /* If failure was channel mode try to renegotiate */
+        if (l2c_fcr_renegotiate_chan(p_ccb, p_cfg) == FALSE)
+        {
+            L2CAP_TRACE_API ("L2CAP - Calling Config_Rsp_Cb(), CID: 0x%04x, Failure: %d", p_ccb->local_cid, p_cfg->result);
+            (*p_ccb->p_rcb->api.pL2CA_ConfigCfm_Cb)(p_ccb->local_cid, p_cfg);
+        }
+        break;
+
+    case L2CEVT_L2CAP_DISCONNECT_REQ:                  /* Peer disconnected request */
+        alarm_set_on_queue(p_ccb->l2c_ccb_timer,
+                           L2CAP_CHNL_DISCONNECT_TIMEOUT_MS,
+                           l2c_ccb_timer_timeout, p_ccb,
+                           btu_general_alarm_queue);
+        p_ccb->chnl_state = CST_W4_L2CA_DISCONNECT_RSP;
+        L2CAP_TRACE_API ("L2CAP - Calling Disconnect_Ind_Cb(), CID: 0x%04x  Conf Needed", p_ccb->local_cid);
+        (*p_ccb->p_rcb->api.pL2CA_DisconnectInd_Cb)(p_ccb->local_cid, TRUE);
+        break;
+
+    case L2CEVT_L2CA_CONFIG_REQ:                   /* Upper layer config req   */
+        l2cu_process_our_cfg_req (p_ccb, p_cfg);
+        l2cu_send_peer_config_req (p_ccb, p_cfg);
+        alarm_set_on_queue(p_ccb->l2c_ccb_timer,
+                           L2CAP_CHNL_CFG_TIMEOUT_MS,
+                           l2c_ccb_timer_timeout, p_ccb,
+                           btu_general_alarm_queue);
+        break;
+
+    case L2CEVT_L2CA_CONFIG_RSP:                   /* Upper layer config rsp   */
+        l2cu_process_our_cfg_rsp (p_ccb, p_cfg);
+
+        /* Not finished if continuation flag is set */
+        if ( (p_cfg->flags & L2CAP_CFG_FLAGS_MASK_CONT) || (p_cfg->result == L2CAP_CFG_PENDING) )
+        {
+            /* Send intermediate response; remain in cfg state */
+            l2cu_send_peer_config_rsp (p_ccb, p_cfg);
+            break;
+        }
+
+        /* Local config done; clear cached configuration in case reconfig takes place later */
+        p_ccb->peer_cfg.mtu_present = FALSE;
+        p_ccb->peer_cfg.flush_to_present = FALSE;
+        p_ccb->peer_cfg.qos_present = FALSE;
+
+        p_ccb->config_done |= IB_CFG_DONE;
+
+        if (p_ccb->config_done & OB_CFG_DONE)
+        {
+            /* Verify two sides are in compatible modes before continuing */
+            if (p_ccb->our_cfg.fcr.mode != p_ccb->peer_cfg.fcr.mode)
+            {
+                l2cu_send_peer_disc_req (p_ccb);
+                L2CAP_TRACE_WARNING ("L2CAP - Calling Disconnect_Ind_Cb(Incompatible CFG), CID: 0x%04x  No Conf Needed", p_ccb->local_cid);
+                l2cu_release_ccb (p_ccb);
+                (*disconnect_ind)(local_cid, FALSE);
+                break;
+            }
+
+            p_ccb->config_done |= RECONFIG_FLAG;
+            p_ccb->chnl_state = CST_OPEN;
+            l2c_link_adjust_chnl_allocation ();
+            alarm_cancel(p_ccb->l2c_ccb_timer);
+        }
+
+        l2cu_send_peer_config_rsp (p_ccb, p_cfg);
+
+        /* If using eRTM and waiting for an ACK, restart the ACK timer */
+        if (p_ccb->fcrb.wait_ack)
+            l2c_fcr_start_timer(p_ccb);
+
+#if (L2CAP_ERTM_STATS == TRUE)
+        p_ccb->fcrb.connect_tick_count = time_get_os_boottime_ms();
+#endif
+
+        /* See if we can forward anything on the hold queue */
+        if ( (p_ccb->chnl_state == CST_OPEN) &&
+             (!fixed_queue_is_empty(p_ccb->xmit_hold_q)))
+        {
+            l2c_link_check_send_pkts (p_ccb->p_lcb, NULL, NULL);
+        }
+        break;
+
+    case L2CEVT_L2CA_CONFIG_RSP_NEG:               /* Upper layer config reject */
+        l2cu_send_peer_config_rsp (p_ccb, p_cfg);
+        alarm_set_on_queue(p_ccb->l2c_ccb_timer,
+                           L2CAP_CHNL_CFG_TIMEOUT_MS,
+                           l2c_ccb_timer_timeout, p_ccb,
+                           btu_general_alarm_queue);
+        break;
+
+    case L2CEVT_L2CA_DISCONNECT_REQ:                 /* Upper wants to disconnect */
+        l2cu_send_peer_disc_req (p_ccb);
+        p_ccb->chnl_state = CST_W4_L2CAP_DISCONNECT_RSP;
+        alarm_set_on_queue(p_ccb->l2c_ccb_timer,
+                           L2CAP_CHNL_DISCONNECT_TIMEOUT_MS,
+                           l2c_ccb_timer_timeout, p_ccb,
+                           btu_general_alarm_queue);
+        break;
+
+    case L2CEVT_L2CAP_DATA:                        /* Peer data packet rcvd    */
+        L2CAP_TRACE_API ("L2CAP - Calling DataInd_Cb(), CID: 0x%04x", p_ccb->local_cid);
+#if (L2CAP_NUM_FIXED_CHNLS > 0)
+        if (p_ccb->local_cid >= L2CAP_FIRST_FIXED_CHNL &&
+                p_ccb->local_cid <= L2CAP_LAST_FIXED_CHNL)
+        {
+            if (p_ccb->local_cid < L2CAP_BASE_APPL_CID)
+            {
+                if (l2cb.fixed_reg[p_ccb->local_cid - L2CAP_FIRST_FIXED_CHNL].pL2CA_FixedData_Cb)
+                    (*l2cb.fixed_reg[p_ccb->local_cid - L2CAP_FIRST_FIXED_CHNL].pL2CA_FixedData_Cb)
+                        (p_ccb->local_cid, p_ccb->p_lcb->remote_bd_addr,(BT_HDR *)p_data);
+                else
+                    osi_free(p_data);
+            break;
+            }
+        }
+#endif
+        (*p_ccb->p_rcb->api.pL2CA_DataInd_Cb)(p_ccb->local_cid, (BT_HDR *)p_data);
+        break;
+
+    case L2CEVT_L2CA_DATA_WRITE:                   /* Upper layer data to send */
+        if (p_ccb->config_done & OB_CFG_DONE)
+            l2c_enqueue_peer_data (p_ccb, (BT_HDR *)p_data);
+        else
+            osi_free(p_data);
+        break;
+
+    case L2CEVT_TIMEOUT:
+        l2cu_send_peer_disc_req (p_ccb);
+        L2CAP_TRACE_API ("L2CAP - Calling Disconnect_Ind_Cb(), CID: 0x%04x  No Conf Needed",
+                p_ccb->local_cid);
+        l2cu_release_ccb (p_ccb);
+        (*disconnect_ind)(local_cid, FALSE);
+        break;
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         l2c_csm_open
+**
+** Description      This function handles events when the channel is in
+**                  OPEN state.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void l2c_csm_open (tL2C_CCB *p_ccb, UINT16 event, void *p_data)
+{
+    UINT16                  local_cid = p_ccb->local_cid;
+    tL2CAP_CFG_INFO         *p_cfg;
+    tL2C_CHNL_STATE         tempstate;
+    UINT8                   tempcfgdone;
+    UINT8                   cfg_result;
+    UINT16                  *credit;
+
+#if (BT_TRACE_VERBOSE == TRUE)
+    L2CAP_TRACE_EVENT ("L2CAP - LCID: 0x%04x  st: OPEN  evt: %s",
+            p_ccb->local_cid, l2c_csm_get_event_name (event));
+#else
+    L2CAP_TRACE_EVENT ("L2CAP - st: OPEN evt: %d", event);
+#endif
+
+#if (L2CAP_UCD_INCLUDED == TRUE)
+    if ( local_cid == L2CAP_CONNECTIONLESS_CID )
+    {
+        /* check if this event can be processed by UCD */
+        if ( l2c_ucd_process_event (p_ccb, event, p_data) )
+        {
+            /* The event is processed by UCD state machine */
+            return;
+        }
+    }
+#endif
+
+    switch (event)
+    {
+    case L2CEVT_LP_DISCONNECT_IND:                  /* Link was disconnected */
+        L2CAP_TRACE_API ("L2CAP - Calling Disconnect_Ind_Cb(), CID: 0x%04x  No Conf Needed",
+                p_ccb->local_cid);
+        l2cu_release_ccb (p_ccb);
+        if (p_ccb->p_rcb)
+            (*p_ccb->p_rcb->api.pL2CA_DisconnectInd_Cb)(local_cid, FALSE);
+        break;
+
+    case L2CEVT_LP_QOS_VIOLATION_IND:               /* QOS violation         */
+        /* Tell upper layer. If service guaranteed, then clear the channel   */
+        if (p_ccb->p_rcb->api.pL2CA_QoSViolationInd_Cb)
+            (*p_ccb->p_rcb->api.pL2CA_QoSViolationInd_Cb)(p_ccb->p_lcb->remote_bd_addr);
+        break;
+
+    case L2CEVT_L2CAP_CONFIG_REQ:                  /* Peer config request   */
+        p_cfg = (tL2CAP_CFG_INFO *)p_data;
+
+        tempstate = p_ccb->chnl_state;
+        tempcfgdone = p_ccb->config_done;
+        p_ccb->chnl_state = CST_CONFIG;
+        p_ccb->config_done &= ~CFG_DONE_MASK;
+
+        alarm_set_on_queue(p_ccb->l2c_ccb_timer,
+                           L2CAP_CHNL_CFG_TIMEOUT_MS,
+                           l2c_ccb_timer_timeout, p_ccb,
+                           btu_general_alarm_queue);
+
+        if ((cfg_result = l2cu_process_peer_cfg_req (p_ccb, p_cfg)) == L2CAP_PEER_CFG_OK)
+        {
+            (*p_ccb->p_rcb->api.pL2CA_ConfigInd_Cb)(p_ccb->local_cid, p_cfg);
+        }
+
+        /* Error in config parameters: reset state and config flag */
+        else if (cfg_result == L2CAP_PEER_CFG_UNACCEPTABLE)
+        {
+            alarm_cancel(p_ccb->l2c_ccb_timer);
+            p_ccb->chnl_state = tempstate;
+            p_ccb->config_done = tempcfgdone;
+            l2cu_send_peer_config_rsp (p_ccb, p_cfg);
+        }
+        else    /* L2CAP_PEER_CFG_DISCONNECT */
+        {
+            /* Disconnect if channels are incompatible
+             * Note this should not occur if reconfigure
+             * since this should have never passed original config.
+             */
+            l2cu_disconnect_chnl (p_ccb);
+        }
+        break;
+
+    case L2CEVT_L2CAP_DISCONNECT_REQ:                  /* Peer disconnected request */
+        if (p_ccb->p_lcb->transport != BT_TRANSPORT_LE)
+        {
+        /* Make sure we are not in sniff mode */
+            {
+                tBTM_PM_PWR_MD settings;
+                memset((void*)&settings, 0, sizeof(settings));
+                settings.mode = BTM_PM_MD_ACTIVE;
+                BTM_SetPowerMode (BTM_PM_SET_ONLY_ID, p_ccb->p_lcb->remote_bd_addr, &settings);
+            }
+        }
+
+        p_ccb->chnl_state = CST_W4_L2CA_DISCONNECT_RSP;
+        alarm_set_on_queue(p_ccb->l2c_ccb_timer,
+                           L2CAP_CHNL_DISCONNECT_TIMEOUT_MS,
+                           l2c_ccb_timer_timeout, p_ccb,
+                           btu_general_alarm_queue);
+        L2CAP_TRACE_API ("L2CAP - Calling Disconnect_Ind_Cb(), CID: 0x%04x  Conf Needed", p_ccb->local_cid);
+        (*p_ccb->p_rcb->api.pL2CA_DisconnectInd_Cb)(p_ccb->local_cid, TRUE);
+        break;
+
+    case L2CEVT_L2CAP_DATA:                         /* Peer data packet rcvd    */
+        if ((p_ccb->p_rcb) && (p_ccb->p_rcb->api.pL2CA_DataInd_Cb))
+            (*p_ccb->p_rcb->api.pL2CA_DataInd_Cb)(p_ccb->local_cid, (BT_HDR *)p_data);
+        break;
+
+    case L2CEVT_L2CA_DISCONNECT_REQ:                 /* Upper wants to disconnect */
+        if (p_ccb->p_lcb->transport != BT_TRANSPORT_LE)
+        {
+            /* Make sure we are not in sniff mode */
+            {
+                tBTM_PM_PWR_MD settings;
+                memset((void*)&settings, 0, sizeof(settings));
+                settings.mode = BTM_PM_MD_ACTIVE;
+                BTM_SetPowerMode (BTM_PM_SET_ONLY_ID, p_ccb->p_lcb->remote_bd_addr, &settings);
+            }
+        }
+
+        if (p_ccb->p_lcb->transport == BT_TRANSPORT_LE)
+            l2cble_send_peer_disc_req (p_ccb);
+        else
+            l2cu_send_peer_disc_req (p_ccb);
+
+        p_ccb->chnl_state = CST_W4_L2CAP_DISCONNECT_RSP;
+        alarm_set_on_queue(p_ccb->l2c_ccb_timer,
+                           L2CAP_CHNL_DISCONNECT_TIMEOUT_MS,
+                           l2c_ccb_timer_timeout, p_ccb,
+                           btu_general_alarm_queue);
+        break;
+
+    case L2CEVT_L2CA_DATA_WRITE:                    /* Upper layer data to send */
+        l2c_enqueue_peer_data (p_ccb, (BT_HDR *)p_data);
+        l2c_link_check_send_pkts (p_ccb->p_lcb, NULL, NULL);
+        break;
+
+    case L2CEVT_L2CA_CONFIG_REQ:                   /* Upper layer config req   */
+        p_ccb->chnl_state = CST_CONFIG;
+        p_ccb->config_done &= ~CFG_DONE_MASK;
+        l2cu_process_our_cfg_req (p_ccb, (tL2CAP_CFG_INFO *)p_data);
+        l2cu_send_peer_config_req (p_ccb, (tL2CAP_CFG_INFO *)p_data);
+        alarm_set_on_queue(p_ccb->l2c_ccb_timer,
+                           L2CAP_CHNL_CFG_TIMEOUT_MS,
+                           l2c_ccb_timer_timeout, p_ccb,
+                           btu_general_alarm_queue);
+        break;
+
+    case L2CEVT_TIMEOUT:
+        /* Process the monitor/retransmission time-outs in flow control/retrans mode */
+        if (p_ccb->peer_cfg.fcr.mode == L2CAP_FCR_ERTM_MODE)
+            l2c_fcr_proc_tout (p_ccb);
+        break;
+
+    case L2CEVT_ACK_TIMEOUT:
+        l2c_fcr_proc_ack_tout (p_ccb);
+        break;
+
+    case L2CEVT_L2CA_SEND_FLOW_CONTROL_CREDIT:
+        L2CAP_TRACE_DEBUG("%s Sending credit",__func__);
+        credit = (UINT16*)p_data;
+        l2cble_send_flow_control_credit(p_ccb, *credit);
+        break;
+
+    case L2CEVT_L2CAP_RECV_FLOW_CONTROL_CREDIT:
+        credit = (UINT16*)p_data;
+        L2CAP_TRACE_DEBUG("%s Credits received %d",__func__, *credit);
+        if((p_ccb->peer_conn_cfg.credits + *credit) > L2CAP_LE_MAX_CREDIT)
+        {
+            /* we have received credits more than max coc credits,
+             * so disconnecting the Le Coc Channel
+             */
+            l2cble_send_peer_disc_req (p_ccb);
+        }
+        else
+        {
+            p_ccb->peer_conn_cfg.credits += *credit;
+            l2c_link_check_send_pkts (p_ccb->p_lcb, NULL, NULL);
+        }
+        break;
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         l2c_csm_w4_l2cap_disconnect_rsp
+**
+** Description      This function handles events when the channel is in
+**                  CST_W4_L2CAP_DISCONNECT_RSP state.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void l2c_csm_w4_l2cap_disconnect_rsp (tL2C_CCB *p_ccb, UINT16 event, void *p_data)
+{
+    tL2CA_DISCONNECT_CFM_CB *disconnect_cfm = p_ccb->p_rcb->api.pL2CA_DisconnectCfm_Cb;
+    UINT16                  local_cid = p_ccb->local_cid;
+
+#if (BT_TRACE_VERBOSE == TRUE)
+    L2CAP_TRACE_EVENT ("L2CAP - LCID: 0x%04x  st: W4_L2CAP_DISC_RSP  evt: %s", p_ccb->local_cid, l2c_csm_get_event_name (event));
+#else
+    L2CAP_TRACE_EVENT ("L2CAP - st: W4_L2CAP_DISC_RSP evt: %d", event);
+#endif
+
+    switch (event)
+    {
+    case L2CEVT_L2CAP_DISCONNECT_RSP:                /* Peer disconnect response */
+        l2cu_release_ccb (p_ccb);
+        if (disconnect_cfm)
+        {
+            L2CAP_TRACE_API ("L2CAP - Calling DisconnectCfm_Cb(), CID: 0x%04x", local_cid);
+            (*disconnect_cfm)(local_cid, L2CAP_DISC_OK);
+        }
+        break;
+
+    case L2CEVT_L2CAP_DISCONNECT_REQ:                /* Peer disconnect request  */
+        l2cu_send_peer_disc_rsp (p_ccb->p_lcb, p_ccb->remote_id, p_ccb->local_cid, p_ccb->remote_cid);
+        l2cu_release_ccb (p_ccb);
+        if (disconnect_cfm)
+        {
+            L2CAP_TRACE_API ("L2CAP - Calling DisconnectCfm_Cb(), CID: 0x%04x", local_cid);
+            (*disconnect_cfm)(local_cid, L2CAP_DISC_OK);
+        }
+       break;
+
+    case L2CEVT_LP_DISCONNECT_IND:                  /* Link was disconnected */
+    case L2CEVT_TIMEOUT:                            /* Timeout */
+        l2cu_release_ccb (p_ccb);
+        if (disconnect_cfm)
+        {
+            L2CAP_TRACE_API ("L2CAP - Calling DisconnectCfm_Cb(), CID: 0x%04x", local_cid);
+            (*disconnect_cfm)(local_cid, L2CAP_DISC_TIMEOUT);
+        }
+        break;
+
+    case L2CEVT_L2CAP_DATA:                         /* Peer data packet rcvd    */
+    case L2CEVT_L2CA_DATA_WRITE:                    /* Upper layer data to send */
+        osi_free(p_data);
+        break;
+
+    case L2CEVT_L2CA_SEND_FLOW_CONTROL_CREDIT:
+    case L2CEVT_L2CAP_RECV_FLOW_CONTROL_CREDIT:
+        osi_free(p_data);
+        break;
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         l2c_csm_w4_l2ca_disconnect_rsp
+**
+** Description      This function handles events when the channel is in
+**                  CST_W4_L2CA_DISCONNECT_RSP state.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void l2c_csm_w4_l2ca_disconnect_rsp (tL2C_CCB *p_ccb, UINT16 event, void *p_data)
+{
+    tL2CA_DISCONNECT_IND_CB *disconnect_ind = p_ccb->p_rcb->api.pL2CA_DisconnectInd_Cb;
+    UINT16                  local_cid = p_ccb->local_cid;
+
+#if (BT_TRACE_VERBOSE == TRUE)
+    L2CAP_TRACE_EVENT ("L2CAP - LCID: 0x%04x  st: W4_L2CA_DISC_RSP  evt: %s", p_ccb->local_cid, l2c_csm_get_event_name (event));
+#else
+    L2CAP_TRACE_EVENT ("L2CAP - st: W4_L2CA_DISC_RSP evt: %d", event);
+#endif
+
+    switch (event)
+    {
+    case L2CEVT_LP_DISCONNECT_IND:                  /* Link was disconnected */
+        L2CAP_TRACE_API ("L2CAP - Calling Disconnect_Ind_Cb(), CID: 0x%04x  No Conf Needed", p_ccb->local_cid);
+        l2cu_release_ccb (p_ccb);
+        (*disconnect_ind)(local_cid, FALSE);
+        break;
+
+    case L2CEVT_TIMEOUT:
+        l2cu_send_peer_disc_rsp (p_ccb->p_lcb, p_ccb->remote_id, p_ccb->local_cid, p_ccb->remote_cid);
+        L2CAP_TRACE_API ("L2CAP - Calling Disconnect_Ind_Cb(), CID: 0x%04x  No Conf Needed", p_ccb->local_cid);
+        l2cu_release_ccb (p_ccb);
+        (*disconnect_ind)(local_cid, FALSE);
+        break;
+
+    case L2CEVT_L2CA_DISCONNECT_REQ:                /* Upper disconnect request */
+    case L2CEVT_L2CA_DISCONNECT_RSP:                /* Upper disconnect response */
+        l2cu_send_peer_disc_rsp (p_ccb->p_lcb, p_ccb->remote_id, p_ccb->local_cid, p_ccb->remote_cid);
+        l2cu_release_ccb (p_ccb);
+        break;
+
+    case L2CEVT_L2CAP_DATA:                         /* Peer data packet rcvd    */
+    case L2CEVT_L2CA_DATA_WRITE:                    /* Upper layer data to send */
+        osi_free(p_data);
+        break;
+    }
+}
+
+
+#if (BT_TRACE_VERBOSE == TRUE)
+/*******************************************************************************
+**
+** Function         l2c_csm_get_event_name
+**
+** Description      This function returns the event name.
+**
+** NOTE             conditionally compiled to save memory.
+**
+** Returns          pointer to the name
+**
+*******************************************************************************/
+static char *l2c_csm_get_event_name (UINT16 event)
+{
+    switch (event)
+    {
+    case L2CEVT_LP_CONNECT_CFM:                  /* Lower layer connect confirm          */
+        return ("LOWER_LAYER_CONNECT_CFM");
+    case L2CEVT_LP_CONNECT_CFM_NEG:              /* Lower layer connect confirm (failed) */
+        return ("LOWER_LAYER_CONNECT_CFM_NEG");
+    case L2CEVT_LP_CONNECT_IND:                  /* Lower layer connect indication       */
+        return ("LOWER_LAYER_CONNECT_IND");
+    case L2CEVT_LP_DISCONNECT_IND:               /* Lower layer disconnect indication    */
+        return ("LOWER_LAYER_DISCONNECT_IND");
+    case L2CEVT_LP_QOS_CFM:                      /* Lower layer QOS confirmation         */
+        return ("LOWER_LAYER_QOS_CFM");
+    case L2CEVT_LP_QOS_CFM_NEG:                  /* Lower layer QOS confirmation (failed)*/
+        return ("LOWER_LAYER_QOS_CFM_NEG");
+    case L2CEVT_LP_QOS_VIOLATION_IND:            /* Lower layer QOS violation indication */
+        return ("LOWER_LAYER_QOS_VIOLATION_IND");
+
+    case L2CEVT_SEC_COMP:                        /* Security cleared successfully        */
+        return ("SECURITY_COMPLETE");
+    case L2CEVT_SEC_COMP_NEG:                    /* Security procedure failed            */
+        return ("SECURITY_COMPLETE_NEG");
+
+    case L2CEVT_L2CAP_CONNECT_REQ:               /* Peer connection request              */
+        return ("PEER_CONNECT_REQ");
+    case L2CEVT_L2CAP_CONNECT_RSP:               /* Peer connection response             */
+        return ("PEER_CONNECT_RSP");
+    case L2CEVT_L2CAP_CONNECT_RSP_PND:           /* Peer connection response pending     */
+        return ("PEER_CONNECT_RSP_PND");
+    case L2CEVT_L2CAP_CONNECT_RSP_NEG:           /* Peer connection response (failed)    */
+        return ("PEER_CONNECT_RSP_NEG");
+    case L2CEVT_L2CAP_CONFIG_REQ:                /* Peer configuration request           */
+        return ("PEER_CONFIG_REQ");
+    case L2CEVT_L2CAP_CONFIG_RSP:                /* Peer configuration response          */
+        return ("PEER_CONFIG_RSP");
+    case L2CEVT_L2CAP_CONFIG_RSP_NEG:            /* Peer configuration response (failed) */
+        return ("PEER_CONFIG_RSP_NEG");
+    case L2CEVT_L2CAP_DISCONNECT_REQ:            /* Peer disconnect request              */
+        return ("PEER_DISCONNECT_REQ");
+    case L2CEVT_L2CAP_DISCONNECT_RSP:            /* Peer disconnect response             */
+        return ("PEER_DISCONNECT_RSP");
+    case L2CEVT_L2CAP_DATA:                      /* Peer data                            */
+        return ("PEER_DATA");
+
+    case L2CEVT_L2CA_CONNECT_REQ:                /* Upper layer connect request          */
+        return ("UPPER_LAYER_CONNECT_REQ");
+    case L2CEVT_L2CA_CONNECT_RSP:                /* Upper layer connect response         */
+        return ("UPPER_LAYER_CONNECT_RSP");
+    case L2CEVT_L2CA_CONNECT_RSP_NEG:            /* Upper layer connect response (failed)*/
+        return ("UPPER_LAYER_CONNECT_RSP_NEG");
+    case L2CEVT_L2CA_CONFIG_REQ:                 /* Upper layer config request           */
+        return ("UPPER_LAYER_CONFIG_REQ");
+    case L2CEVT_L2CA_CONFIG_RSP:                 /* Upper layer config response          */
+        return ("UPPER_LAYER_CONFIG_RSP");
+    case L2CEVT_L2CA_CONFIG_RSP_NEG:             /* Upper layer config response (failed) */
+        return ("UPPER_LAYER_CONFIG_RSP_NEG");
+    case L2CEVT_L2CA_DISCONNECT_REQ:             /* Upper layer disconnect request       */
+        return ("UPPER_LAYER_DISCONNECT_REQ");
+    case L2CEVT_L2CA_DISCONNECT_RSP:             /* Upper layer disconnect response      */
+        return ("UPPER_LAYER_DISCONNECT_RSP");
+    case L2CEVT_L2CA_DATA_READ:                  /* Upper layer data read                */
+        return ("UPPER_LAYER_DATA_READ");
+    case L2CEVT_L2CA_DATA_WRITE:                 /* Upper layer data write               */
+        return ("UPPER_LAYER_DATA_WRITE");
+    case L2CEVT_TIMEOUT:                         /* Timeout                              */
+        return ("TIMEOUT");
+    case L2CEVT_SEC_RE_SEND_CMD:
+        return ("SEC_RE_SEND_CMD");
+    case L2CEVT_L2CAP_INFO_RSP:                  /* Peer information response            */
+        return ("L2CEVT_L2CAP_INFO_RSP");
+    case L2CEVT_ACK_TIMEOUT:
+        return ("L2CEVT_ACK_TIMEOUT");
+    case L2CEVT_L2CA_SEND_FLOW_CONTROL_CREDIT:   /* Upper layer send credit packet       */
+        return ("SEND_FLOW_CONTROL_CREDIT");
+    case L2CEVT_L2CAP_RECV_FLOW_CONTROL_CREDIT:  /* Peer send credit packet              */
+        return ("RECV_FLOW_CONTROL_CREDIT");
+
+    default:
+        return ("???? UNKNOWN EVENT");
+    }
+}
+#endif /* (BT_TRACE_VERBOSE == TRUE) */
+
+
+/*******************************************************************************
+**
+** Function         l2c_enqueue_peer_data
+**
+** Description      Enqueues data destined for the peer in the ccb. Handles
+**                  FCR segmentation and checks for congestion.
+**
+** Returns          void
+**
+*******************************************************************************/
+void l2c_enqueue_peer_data (tL2C_CCB *p_ccb, BT_HDR *p_buf)
+{
+    UINT8       *p;
+
+    if (p_ccb->peer_cfg.fcr.mode != L2CAP_FCR_BASIC_MODE)
+    {
+        p_buf->event = 0;
+    }
+    else
+    {
+        /* Save the channel ID for faster counting */
+        p_buf->event = p_ccb->local_cid;
+
+        /* Step back to add the L2CAP header */
+        p_buf->offset -= L2CAP_PKT_OVERHEAD;
+        p_buf->len    += L2CAP_PKT_OVERHEAD;
+
+        /* Set the pointer to the beginning of the data */
+        p = (UINT8 *)(p_buf + 1) + p_buf->offset;
+
+        /* Now the L2CAP header */
+        UINT16_TO_STREAM (p, p_buf->len - L2CAP_PKT_OVERHEAD);
+        UINT16_TO_STREAM (p, p_ccb->remote_cid);
+    }
+
+    if (p_ccb->xmit_hold_q == NULL) {
+      L2CAP_TRACE_ERROR("%s: empty queue: p_ccb = %p p_ccb->in_use = %d p_ccb->chnl_state = %d p_ccb->local_cid = %u p_ccb->remote_cid = %u",
+                        __func__, p_ccb, p_ccb->in_use, p_ccb->chnl_state,
+                        p_ccb->local_cid, p_ccb->remote_cid);
+    }
+    fixed_queue_enqueue(p_ccb->xmit_hold_q, p_buf);
+
+    l2cu_check_channel_congestion (p_ccb);
+
+#if (L2CAP_ROUND_ROBIN_CHANNEL_SERVICE == TRUE)
+    /* if new packet is higher priority than serving ccb and it is not overrun */
+    if (( p_ccb->p_lcb->rr_pri > p_ccb->ccb_priority )
+      &&( p_ccb->p_lcb->rr_serv[p_ccb->ccb_priority].quota > 0))
+    {
+        /* send out higher priority packet */
+        p_ccb->p_lcb->rr_pri = p_ccb->ccb_priority;
+    }
+#endif
+
+    /* if we are doing a round robin scheduling, set the flag */
+    if (p_ccb->p_lcb->link_xmit_quota == 0)
+        l2cb.check_round_robin = TRUE;
+}
+
+
diff --git a/rtkbt/code/bt/stack/l2cap/l2c_fcr.c b/rtkbt/code/bt/stack/l2cap/l2c_fcr.c
new file mode 100755
index 0000000..5ba8b56
--- /dev/null
+++ b/rtkbt/code/bt/stack/l2cap/l2c_fcr.c
@@ -0,0 +1,2522 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2004-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains the L2CAP 1.2 Flow Control and retransmissions
+ *  functions
+ *
+ ******************************************************************************/
+
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "bt_types.h"
+#include "bt_common.h"
+#include "hcimsgs.h"
+#include "l2c_api.h"
+#include "l2c_int.h"
+#include "l2cdefs.h"
+#include "btm_api.h"
+#include "btm_int.h"
+#include "btu.h"
+
+
+extern fixed_queue_t *btu_general_alarm_queue;
+
+/* Flag passed to retransmit_i_frames() when all packets should be retransmitted */
+#define L2C_FCR_RETX_ALL_PKTS   0xFF
+
+/* this is the minimal offset required by OBX to process incoming packets */
+static const uint16_t OBX_BUF_MIN_OFFSET = 4;
+
+#if BT_TRACE_VERBOSE == TRUE
+static char *SAR_types[] = { "Unsegmented", "Start", "End", "Continuation" };
+static char *SUP_types[] = { "RR", "REJ", "RNR", "SREJ" };
+#endif
+
+/* Look-up table for the CRC calculation */
+static const unsigned short crctab[256] = {
+    0x0000, 0xc0c1, 0xc181, 0x0140, 0xc301, 0x03c0, 0x0280, 0xc241,
+    0xc601, 0x06c0, 0x0780, 0xc741, 0x0500, 0xc5c1, 0xc481, 0x0440,
+    0xcc01, 0x0cc0, 0x0d80, 0xcd41, 0x0f00, 0xcfc1, 0xce81, 0x0e40,
+    0x0a00, 0xcac1, 0xcb81, 0x0b40, 0xc901, 0x09c0, 0x0880, 0xc841,
+    0xd801, 0x18c0, 0x1980, 0xd941, 0x1b00, 0xdbc1, 0xda81, 0x1a40,
+    0x1e00, 0xdec1, 0xdf81, 0x1f40, 0xdd01, 0x1dc0, 0x1c80, 0xdc41,
+    0x1400, 0xd4c1, 0xd581, 0x1540, 0xd701, 0x17c0, 0x1680, 0xd641,
+    0xd201, 0x12c0, 0x1380, 0xd341, 0x1100, 0xd1c1, 0xd081, 0x1040,
+    0xf001, 0x30c0, 0x3180, 0xf141, 0x3300, 0xf3c1, 0xf281, 0x3240,
+    0x3600, 0xf6c1, 0xf781, 0x3740, 0xf501, 0x35c0, 0x3480, 0xf441,
+    0x3c00, 0xfcc1, 0xfd81, 0x3d40, 0xff01, 0x3fc0, 0x3e80, 0xfe41,
+    0xfa01, 0x3ac0, 0x3b80, 0xfb41, 0x3900, 0xf9c1, 0xf881, 0x3840,
+    0x2800, 0xe8c1, 0xe981, 0x2940, 0xeb01, 0x2bc0, 0x2a80, 0xea41,
+    0xee01, 0x2ec0, 0x2f80, 0xef41, 0x2d00, 0xedc1, 0xec81, 0x2c40,
+    0xe401, 0x24c0, 0x2580, 0xe541, 0x2700, 0xe7c1, 0xe681, 0x2640,
+    0x2200, 0xe2c1, 0xe381, 0x2340, 0xe101, 0x21c0, 0x2080, 0xe041,
+    0xa001, 0x60c0, 0x6180, 0xa141, 0x6300, 0xa3c1, 0xa281, 0x6240,
+    0x6600, 0xa6c1, 0xa781, 0x6740, 0xa501, 0x65c0, 0x6480, 0xa441,
+    0x6c00, 0xacc1, 0xad81, 0x6d40, 0xaf01, 0x6fc0, 0x6e80, 0xae41,
+    0xaa01, 0x6ac0, 0x6b80, 0xab41, 0x6900, 0xa9c1, 0xa881, 0x6840,
+    0x7800, 0xb8c1, 0xb981, 0x7940, 0xbb01, 0x7bc0, 0x7a80, 0xba41,
+    0xbe01, 0x7ec0, 0x7f80, 0xbf41, 0x7d00, 0xbdc1, 0xbc81, 0x7c40,
+    0xb401, 0x74c0, 0x7580, 0xb541, 0x7700, 0xb7c1, 0xb681, 0x7640,
+    0x7200, 0xb2c1, 0xb381, 0x7340, 0xb101, 0x71c0, 0x7080, 0xb041,
+    0x5000, 0x90c1, 0x9181, 0x5140, 0x9301, 0x53c0, 0x5280, 0x9241,
+    0x9601, 0x56c0, 0x5780, 0x9741, 0x5500, 0x95c1, 0x9481, 0x5440,
+    0x9c01, 0x5cc0, 0x5d80, 0x9d41, 0x5f00, 0x9fc1, 0x9e81, 0x5e40,
+    0x5a00, 0x9ac1, 0x9b81, 0x5b40, 0x9901, 0x59c0, 0x5880, 0x9841,
+    0x8801, 0x48c0, 0x4980, 0x8941, 0x4b00, 0x8bc1, 0x8a81, 0x4a40,
+    0x4e00, 0x8ec1, 0x8f81, 0x4f40, 0x8d01, 0x4dc0, 0x4c80, 0x8c41,
+    0x4400, 0x84c1, 0x8581, 0x4540, 0x8701, 0x47c0, 0x4680, 0x8641,
+    0x8201, 0x42c0, 0x4380, 0x8341, 0x4100, 0x81c1, 0x8081, 0x4040,
+};
+
+
+/*******************************************************************************
+**  Static local functions
+*/
+static BOOLEAN process_reqseq (tL2C_CCB *p_ccb, UINT16 ctrl_word);
+static void    process_s_frame (tL2C_CCB *p_ccb, BT_HDR *p_buf, UINT16 ctrl_word);
+static void    process_i_frame (tL2C_CCB *p_ccb, BT_HDR *p_buf, UINT16 ctrl_word, BOOLEAN delay_ack);
+static BOOLEAN retransmit_i_frames (tL2C_CCB *p_ccb, UINT8 tx_seq);
+static void    prepare_I_frame (tL2C_CCB *p_ccb, BT_HDR *p_buf, BOOLEAN is_retransmission);
+static void    process_stream_frame (tL2C_CCB *p_ccb, BT_HDR *p_buf);
+static BOOLEAN do_sar_reassembly (tL2C_CCB *p_ccb, BT_HDR *p_buf, UINT16 ctrl_word);
+
+#if (L2CAP_ERTM_STATS == TRUE)
+static void l2c_fcr_collect_ack_delay (tL2C_CCB *p_ccb, UINT8 num_bufs_acked);
+#endif
+
+/*******************************************************************************
+**
+** Function         l2c_fcr_updcrc
+**
+** Description      This function computes the CRC using the look-up table.
+**
+** Returns          CRC
+**
+*******************************************************************************/
+static unsigned short l2c_fcr_updcrc(unsigned short icrc, unsigned char *icp, int icnt)
+{
+    register unsigned short crc = icrc;
+    register unsigned char  *cp = icp;
+    register          int   cnt = icnt;
+
+    while (cnt--)
+    {
+        crc = ((crc >> 8) & 0xff) ^ crctab[(crc & 0xff) ^ *cp++];
+    }
+
+    return(crc);
+}
+
+
+/*******************************************************************************
+**
+** Function         l2c_fcr_tx_get_fcs
+**
+** Description      This function computes the CRC for a frame to be TXed.
+**
+** Returns          CRC
+**
+*******************************************************************************/
+static UINT16 l2c_fcr_tx_get_fcs (BT_HDR *p_buf)
+{
+    UINT8   *p = ((UINT8 *) (p_buf + 1)) + p_buf->offset;
+
+    return (l2c_fcr_updcrc (L2CAP_FCR_INIT_CRC, p, p_buf->len));
+}
+
+/*******************************************************************************
+**
+** Function         l2c_fcr_rx_get_fcs
+**
+** Description      This function computes the CRC for a received frame.
+**
+** Returns          CRC
+**
+*******************************************************************************/
+static UINT16 l2c_fcr_rx_get_fcs (BT_HDR *p_buf)
+{
+    UINT8   *p = ((UINT8 *) (p_buf + 1)) + p_buf->offset;
+
+    /* offset points past the L2CAP header, but the CRC check includes it */
+    p -= L2CAP_PKT_OVERHEAD;
+
+    return (l2c_fcr_updcrc (L2CAP_FCR_INIT_CRC, p, p_buf->len + L2CAP_PKT_OVERHEAD));
+}
+
+/*******************************************************************************
+**
+** Function         l2c_fcr_start_timer
+**
+** Description      This function starts the (monitor or retransmission) timer.
+**
+** Returns          -
+**
+*******************************************************************************/
+void l2c_fcr_start_timer (tL2C_CCB *p_ccb)
+{
+    assert(p_ccb != NULL);
+    UINT32  tout;
+
+    /* The timers which are in milliseconds */
+    if (p_ccb->fcrb.wait_ack)
+    {
+        tout = (UINT32)p_ccb->our_cfg.fcr.mon_tout;
+    }
+    else
+    {
+        tout = (UINT32)p_ccb->our_cfg.fcr.rtrans_tout;
+    }
+
+    /* Only start a timer that was not started */
+    if (!alarm_is_scheduled(p_ccb->fcrb.mon_retrans_timer)) {
+        alarm_set_on_queue(p_ccb->fcrb.mon_retrans_timer, tout,
+                           l2c_ccb_timer_timeout, p_ccb,
+                           btu_general_alarm_queue);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         l2c_fcr_stop_timer
+**
+** Description      This function stops the (monitor or transmission) timer.
+**
+** Returns          -
+**
+*******************************************************************************/
+void l2c_fcr_stop_timer (tL2C_CCB *p_ccb)
+{
+    assert(p_ccb != NULL);
+    alarm_cancel(p_ccb->fcrb.mon_retrans_timer);
+}
+
+/*******************************************************************************
+**
+** Function         l2c_fcr_cleanup
+**
+** Description      This function cleans up the variable used for flow-control/retrans.
+**
+** Returns          -
+**
+*******************************************************************************/
+void l2c_fcr_cleanup (tL2C_CCB *p_ccb)
+{
+    assert(p_ccb != NULL);
+    tL2C_FCRB *p_fcrb = &p_ccb->fcrb;
+
+    alarm_free(p_fcrb->mon_retrans_timer);
+    p_fcrb->mon_retrans_timer = NULL;
+    alarm_free(p_fcrb->ack_timer);
+    p_fcrb->ack_timer = NULL;
+
+    osi_free_and_reset((void **)&p_fcrb->p_rx_sdu);
+
+    fixed_queue_free(p_fcrb->waiting_for_ack_q, osi_free);
+    p_fcrb->waiting_for_ack_q = NULL;
+
+    fixed_queue_free(p_fcrb->srej_rcv_hold_q, osi_free);
+    p_fcrb->srej_rcv_hold_q = NULL;
+
+    fixed_queue_free(p_fcrb->retrans_q, osi_free);
+    p_fcrb->retrans_q = NULL;
+
+#if (L2CAP_ERTM_STATS == TRUE)
+    if ( (p_ccb->local_cid >= L2CAP_BASE_APPL_CID) && (p_ccb->peer_cfg.fcr.mode == L2CAP_FCR_ERTM_MODE) )
+    {
+        UINT32  dur = time_get_os_boottime_ms() - p_ccb->fcrb.connect_tick_count;
+        char    *p_str = (char *)osi_malloc(120);
+        UINT16  i;
+        UINT32  throughput_avg, ack_delay_avg, ack_q_count_avg;
+
+        BT_TRACE(TRACE_CTRL_GENERAL | TRACE_LAYER_GKI | TRACE_ORG_GKI , TRACE_TYPE_GENERIC,
+                   "---  L2CAP ERTM  Stats for CID: 0x%04x   Duration: %08ums", p_ccb->local_cid, dur);
+        BT_TRACE(TRACE_CTRL_GENERAL | TRACE_LAYER_GKI | TRACE_ORG_GKI , TRACE_TYPE_GENERIC,
+                   "Retransmissions:%08u Times Flow Controlled:%08u Retrans Touts:%08u Ack Touts:%08u",
+                    p_ccb->fcrb.pkts_retransmitted, p_ccb->fcrb.xmit_window_closed, p_ccb->fcrb.retrans_touts, p_ccb->fcrb.xmit_ack_touts);
+        BT_TRACE(TRACE_CTRL_GENERAL | TRACE_LAYER_GKI | TRACE_ORG_GKI , TRACE_TYPE_GENERIC,
+                   "Times there is less than 2 packets in controller when flow controlled:%08u", p_ccb->fcrb.controller_idle);
+        BT_TRACE(TRACE_CTRL_GENERAL | TRACE_LAYER_GKI | TRACE_ORG_GKI , TRACE_TYPE_GENERIC,
+                   "max_held_acks:%08u, in_cfg.fcr.tx_win_sz:%08u", p_ccb->fcrb.max_held_acks, p_ccb->peer_cfg.fcr.tx_win_sz );
+
+        sprintf(p_str, "Sent Pkts:%08u Bytes:%10u(%06u/sec) RR:%08u REJ:%08u RNR:%08u SREJ:%08u",
+                p_ccb->fcrb.ertm_pkt_counts[0], p_ccb->fcrb.ertm_byte_counts[0],
+                (dur >= 10 ? (p_ccb->fcrb.ertm_byte_counts[0] * 100) / (dur / 10) : 0),
+                p_ccb->fcrb.s_frames_sent[0], p_ccb->fcrb.s_frames_sent[1], p_ccb->fcrb.s_frames_sent[2], p_ccb->fcrb.s_frames_sent[3]);
+
+        BT_TRACE(TRACE_CTRL_GENERAL | TRACE_LAYER_GKI | TRACE_ORG_GKI , TRACE_TYPE_GENERIC, "%s", p_str);
+
+        sprintf(p_str, "Rcvd Pkts:%08u Bytes:%10u(%06u/sec) RR:%08u REJ:%08u RNR:%08u SREJ:%08u",
+                p_ccb->fcrb.ertm_pkt_counts[1], p_ccb->fcrb.ertm_byte_counts[1],
+                (dur >= 10 ? (p_ccb->fcrb.ertm_byte_counts[1] * 100) / (dur / 10) : 0),
+                p_ccb->fcrb.s_frames_rcvd[0], p_ccb->fcrb.s_frames_rcvd[1], p_ccb->fcrb.s_frames_rcvd[2], p_ccb->fcrb.s_frames_rcvd[3]);
+
+        BT_TRACE(TRACE_CTRL_GENERAL | TRACE_LAYER_GKI | TRACE_ORG_GKI , TRACE_TYPE_GENERIC, "%s", p_str);
+
+        throughput_avg = 0;
+        ack_delay_avg = 0;
+        ack_q_count_avg = 0;
+
+        for (i = 0; i < L2CAP_ERTM_STATS_NUM_AVG; i++) {
+            if (i == p_ccb->fcrb.ack_delay_avg_index) {
+                BT_TRACE(TRACE_CTRL_GENERAL | TRACE_LAYER_GKI | TRACE_ORG_GKI , TRACE_TYPE_GENERIC,
+                         "[%02u] collecting data ...", i );
+                continue;
+            }
+
+            sprintf(p_str, "[%02u] throughput: %5u, ack_delay avg:%3u, min:%3u, max:%3u, ack_q_count avg:%3u, min:%3u, max:%3u",
+                    i, p_ccb->fcrb.throughput[i],
+                    p_ccb->fcrb.ack_delay_avg[i], p_ccb->fcrb.ack_delay_min[i], p_ccb->fcrb.ack_delay_max[i],
+                    p_ccb->fcrb.ack_q_count_avg[i], p_ccb->fcrb.ack_q_count_min[i], p_ccb->fcrb.ack_q_count_max[i] );
+
+            BT_TRACE(TRACE_CTRL_GENERAL | TRACE_LAYER_GKI | TRACE_ORG_GKI , TRACE_TYPE_GENERIC, "%s", p_str);
+
+            throughput_avg  += p_ccb->fcrb.throughput[i];
+            ack_delay_avg   += p_ccb->fcrb.ack_delay_avg[i];
+            ack_q_count_avg += p_ccb->fcrb.ack_q_count_avg[i];
+        }
+
+        throughput_avg  /= (L2CAP_ERTM_STATS_NUM_AVG - 1);
+        ack_delay_avg   /= (L2CAP_ERTM_STATS_NUM_AVG - 1);
+        ack_q_count_avg /= (L2CAP_ERTM_STATS_NUM_AVG - 1);
+
+        BT_TRACE(TRACE_CTRL_GENERAL | TRACE_LAYER_GKI | TRACE_ORG_GKI , TRACE_TYPE_GENERIC,
+                 "throughput_avg: %8u (kbytes/sec), ack_delay_avg: %8u ms, ack_q_count_avg: %8u",
+                 throughput_avg, ack_delay_avg, ack_q_count_avg );
+
+        osi_free(p_str);
+
+        BT_TRACE(TRACE_CTRL_GENERAL | TRACE_LAYER_GKI | TRACE_ORG_GKI , TRACE_TYPE_GENERIC,
+                   "---");
+    }
+#endif
+
+    memset (p_fcrb, 0, sizeof (tL2C_FCRB));
+}
+
+/*******************************************************************************
+**
+** Function         l2c_fcr_clone_buf
+**
+** Description      This function allocates and copies requested part of a buffer
+**                  at a new-offset.
+**
+** Returns          pointer to new buffer
+**
+*******************************************************************************/
+BT_HDR *l2c_fcr_clone_buf(BT_HDR *p_buf, UINT16 new_offset, UINT16 no_of_bytes)
+{
+    assert(p_buf != NULL);
+    /*
+     * NOTE: We allocate extra L2CAP_FCS_LEN octets, in case we need to put
+     * the FCS (Frame Check Sequence) at the end of the buffer.
+     */
+    uint16_t buf_size = no_of_bytes + sizeof(BT_HDR) + new_offset + L2CAP_FCS_LEN;
+#if (L2CAP_ERTM_STATS == TRUE)
+    /*
+     * NOTE: If L2CAP_ERTM_STATS is enabled, we need 4 extra octets at the
+     * end for a timestamp at the end of an I-frame.
+     */
+    buf_size += sizeof(uint32_t);
+#endif
+    BT_HDR *p_buf2 = (BT_HDR *)osi_malloc(buf_size);
+
+    p_buf2->offset = new_offset;
+    p_buf2->len = no_of_bytes;
+    memcpy(((UINT8 *)(p_buf2 + 1)) + p_buf2->offset,
+           ((UINT8 *)(p_buf + 1))  + p_buf->offset,
+           no_of_bytes);
+
+    return (p_buf2);
+}
+
+/*******************************************************************************
+**
+** Function         l2c_fcr_is_flow_controlled
+**
+** Description      This function checks if the CCB is flow controlled by peer.
+**
+** Returns          The control word
+**
+*******************************************************************************/
+BOOLEAN l2c_fcr_is_flow_controlled (tL2C_CCB *p_ccb)
+{
+    assert(p_ccb != NULL);
+    if (p_ccb->peer_cfg.fcr.mode == L2CAP_FCR_ERTM_MODE)
+    {
+        /* Check if remote side flowed us off or the transmit window is full */
+        if ( (p_ccb->fcrb.remote_busy == TRUE)
+         ||  (fixed_queue_length(p_ccb->fcrb.waiting_for_ack_q) >= p_ccb->peer_cfg.fcr.tx_win_sz) )
+        {
+#if (L2CAP_ERTM_STATS == TRUE)
+            if (!fixed_queue_is_empty(p_ccb->xmit_hold_q))
+            {
+                p_ccb->fcrb.xmit_window_closed++;
+
+                if ((p_ccb->p_lcb->sent_not_acked < 2)&&(l2cb.controller_xmit_window > 0))
+                    p_ccb->fcrb.controller_idle++;
+            }
+#endif
+            return (TRUE);
+        }
+    }
+    return (FALSE);
+}
+
+/*******************************************************************************
+**
+** Function         prepare_I_frame
+**
+** Description      This function sets the FCR variables in an I-frame that is
+**                  about to be sent to HCI for transmission. This may be the
+**                  first time the I-frame is sent, or a retransmission
+**
+** Returns          -
+**
+*******************************************************************************/
+static void prepare_I_frame (tL2C_CCB *p_ccb, BT_HDR *p_buf, BOOLEAN is_retransmission)
+{
+    assert(p_ccb != NULL);
+    assert(p_buf != NULL);
+    tL2C_FCRB   *p_fcrb = &p_ccb->fcrb;
+    UINT8       *p;
+    UINT16      fcs;
+    UINT16      ctrl_word;
+    BOOLEAN     set_f_bit = p_fcrb->send_f_rsp;
+
+    p_fcrb->send_f_rsp = FALSE;
+
+    if (is_retransmission)
+    {
+        /* Get the old control word and clear out the old req_seq and F bits */
+        p = ((UINT8 *) (p_buf+1)) + p_buf->offset + L2CAP_PKT_OVERHEAD;
+
+        STREAM_TO_UINT16 (ctrl_word, p);
+
+        ctrl_word  &= ~(L2CAP_FCR_REQ_SEQ_BITS + L2CAP_FCR_F_BIT);
+    }
+    else
+    {
+        ctrl_word  = p_buf->layer_specific & L2CAP_FCR_SEG_BITS;                /* SAR bits */
+        ctrl_word |= (p_fcrb->next_tx_seq << L2CAP_FCR_TX_SEQ_BITS_SHIFT);      /* Tx Seq */
+
+        p_fcrb->next_tx_seq = (p_fcrb->next_tx_seq + 1) & L2CAP_FCR_SEQ_MODULO;
+    }
+
+    /* Set the F-bit and reqseq only if using re-transmission mode */
+    if (p_ccb->peer_cfg.fcr.mode == L2CAP_FCR_ERTM_MODE)
+    {
+        if (set_f_bit)
+            ctrl_word |= L2CAP_FCR_F_BIT;
+
+        ctrl_word |= (p_fcrb->next_seq_expected) << L2CAP_FCR_REQ_SEQ_BITS_SHIFT;
+
+        p_fcrb->last_ack_sent = p_ccb->fcrb.next_seq_expected;
+
+        alarm_cancel(p_ccb->fcrb.ack_timer);
+    }
+
+    /* Set the control word */
+    p = ((UINT8 *) (p_buf+1)) + p_buf->offset + L2CAP_PKT_OVERHEAD;
+
+    UINT16_TO_STREAM (p, ctrl_word);
+
+    /* Compute the FCS and add to the end of the buffer if not bypassed */
+    if (p_ccb->bypass_fcs != L2CAP_BYPASS_FCS)
+    {
+        /* length field in l2cap header has to include FCS length */
+        p = ((UINT8 *) (p_buf+1)) + p_buf->offset;
+        UINT16_TO_STREAM (p, p_buf->len + L2CAP_FCS_LEN - L2CAP_PKT_OVERHEAD);
+
+        /* Calculate the FCS */
+        fcs = l2c_fcr_tx_get_fcs(p_buf);
+
+        /* Point to the end of the buffer and put the FCS there */
+        /*
+         * NOTE: Here we assume the allocated buffer is large enough
+         * to include extra L2CAP_FCS_LEN octets at the end.
+         */
+        p = ((UINT8 *) (p_buf+1)) + p_buf->offset + p_buf->len;
+
+        UINT16_TO_STREAM (p, fcs);
+
+        p_buf->len += L2CAP_FCS_LEN;
+    }
+
+#if BT_TRACE_VERBOSE == TRUE
+    if (is_retransmission)
+    {
+        L2CAP_TRACE_EVENT ("L2CAP eRTM ReTx I-frame  CID: 0x%04x  Len: %u  SAR: %s  TxSeq: %u  ReqSeq: %u  F: %u",
+                            p_ccb->local_cid, p_buf->len,
+                            SAR_types[(ctrl_word & L2CAP_FCR_SAR_BITS) >> L2CAP_FCR_SAR_BITS_SHIFT],
+                            (ctrl_word & L2CAP_FCR_TX_SEQ_BITS) >> L2CAP_FCR_TX_SEQ_BITS_SHIFT,
+                            (ctrl_word & L2CAP_FCR_REQ_SEQ_BITS) >> L2CAP_FCR_REQ_SEQ_BITS_SHIFT,
+                            (ctrl_word & L2CAP_FCR_F_BIT) >> L2CAP_FCR_F_BIT_SHIFT);
+    }
+    else
+    {
+        L2CAP_TRACE_EVENT ("L2CAP eRTM Tx I-frame CID: 0x%04x  Len: %u  SAR: %-12s  TxSeq: %u  ReqSeq: %u  F: %u",
+                            p_ccb->local_cid, p_buf->len,
+                            SAR_types[(ctrl_word & L2CAP_FCR_SAR_BITS) >> L2CAP_FCR_SAR_BITS_SHIFT],
+                            (ctrl_word & L2CAP_FCR_TX_SEQ_BITS) >> L2CAP_FCR_TX_SEQ_BITS_SHIFT,
+                            (ctrl_word & L2CAP_FCR_REQ_SEQ_BITS) >> L2CAP_FCR_REQ_SEQ_BITS_SHIFT,
+                            (ctrl_word & L2CAP_FCR_F_BIT) >> L2CAP_FCR_F_BIT_SHIFT);
+    }
+#endif
+
+    /* Start the retransmission timer if not already running */
+    if (p_ccb->peer_cfg.fcr.mode == L2CAP_FCR_ERTM_MODE)
+        l2c_fcr_start_timer (p_ccb);
+}
+
+/*******************************************************************************
+**
+** Function         l2c_fcr_send_S_frame
+**
+** Description      This function formats and sends an S-frame for transmission.
+**
+** Returns          -
+**
+*******************************************************************************/
+void l2c_fcr_send_S_frame (tL2C_CCB *p_ccb, UINT16 function_code, UINT16 pf_bit)
+{
+    assert(p_ccb != NULL);
+    UINT8       *p;
+    UINT16      ctrl_word;
+    UINT16      fcs;
+
+    if ((!p_ccb->in_use) || (p_ccb->chnl_state != CST_OPEN))
+        return;
+
+#if (L2CAP_ERTM_STATS == TRUE)
+     p_ccb->fcrb.s_frames_sent[function_code]++;
+#endif
+
+    if (pf_bit == L2CAP_FCR_P_BIT)
+    {
+        p_ccb->fcrb.wait_ack = TRUE;
+
+        l2c_fcr_stop_timer (p_ccb);         /* Restart the monitor timer */
+        l2c_fcr_start_timer (p_ccb);
+    }
+
+    /* Create the control word to use */
+    ctrl_word = (function_code << L2CAP_FCR_SUP_SHIFT) | L2CAP_FCR_S_FRAME_BIT;
+    ctrl_word |= (p_ccb->fcrb.next_seq_expected << L2CAP_FCR_REQ_SEQ_BITS_SHIFT);
+    ctrl_word |= pf_bit;
+
+    BT_HDR *p_buf = (BT_HDR *)osi_malloc(L2CAP_CMD_BUF_SIZE);
+    p_buf->offset = HCI_DATA_PREAMBLE_SIZE;
+    p_buf->len    = L2CAP_PKT_OVERHEAD + L2CAP_FCR_OVERHEAD;
+
+    /* Set the pointer to the beginning of the data */
+    p = (UINT8 *)(p_buf + 1) + p_buf->offset;
+
+    /* Put in the L2CAP header */
+    UINT16_TO_STREAM(p, L2CAP_FCR_OVERHEAD + L2CAP_FCS_LEN);
+    UINT16_TO_STREAM(p, p_ccb->remote_cid);
+    UINT16_TO_STREAM(p, ctrl_word);
+
+    /* Compute the FCS and add to the end of the buffer if not bypassed */
+    if (p_ccb->bypass_fcs != L2CAP_BYPASS_FCS) {
+        fcs = l2c_fcr_tx_get_fcs (p_buf);
+
+        UINT16_TO_STREAM (p, fcs);
+        p_buf->len += L2CAP_FCS_LEN;
+    } else {
+        /* rewrite the length without FCS length */
+        p -= 6;
+        UINT16_TO_STREAM (p, L2CAP_FCR_OVERHEAD);
+    }
+
+    /* Now, the HCI transport header */
+    p_buf->layer_specific = L2CAP_NON_FLUSHABLE_PKT;
+    l2cu_set_acl_hci_header (p_buf, p_ccb);
+
+#if BT_TRACE_VERBOSE == TRUE
+    if ((((ctrl_word & L2CAP_FCR_SUP_BITS) >> L2CAP_FCR_SUP_SHIFT) == 1)
+        || (((ctrl_word & L2CAP_FCR_SUP_BITS) >> L2CAP_FCR_SUP_SHIFT) == 3)) {
+        L2CAP_TRACE_WARNING("L2CAP eRTM Tx S-frame  CID: 0x%04x  ctrlword: 0x%04x  Type: %s  ReqSeq: %u  P: %u  F: %u",
+                            p_ccb->local_cid, ctrl_word,
+                            SUP_types[(ctrl_word & L2CAP_FCR_SUP_BITS) >> L2CAP_FCR_SUP_SHIFT],
+                            (ctrl_word & L2CAP_FCR_REQ_SEQ_BITS) >> L2CAP_FCR_REQ_SEQ_BITS_SHIFT,
+                            (ctrl_word & L2CAP_FCR_P_BIT) >> L2CAP_FCR_P_BIT_SHIFT,
+                            (ctrl_word & L2CAP_FCR_F_BIT) >> L2CAP_FCR_F_BIT_SHIFT);
+        L2CAP_TRACE_WARNING ("                  Buf Len: %u", p_buf->len);
+    } else {
+        L2CAP_TRACE_EVENT("L2CAP eRTM Tx S-frame  CID: 0x%04x  ctrlword: 0x%04x  Type: %s  ReqSeq: %u  P: %u  F: %u",
+                          p_ccb->local_cid, ctrl_word,
+                          SUP_types[(ctrl_word & L2CAP_FCR_SUP_BITS) >> L2CAP_FCR_SUP_SHIFT],
+                          (ctrl_word & L2CAP_FCR_REQ_SEQ_BITS) >> L2CAP_FCR_REQ_SEQ_BITS_SHIFT,
+                          (ctrl_word & L2CAP_FCR_P_BIT) >> L2CAP_FCR_P_BIT_SHIFT,
+                          (ctrl_word & L2CAP_FCR_F_BIT) >> L2CAP_FCR_F_BIT_SHIFT);
+        L2CAP_TRACE_EVENT("                  Buf Len: %u", p_buf->len);
+    }
+#endif  /* BT_TRACE_VERBOSE */
+
+    l2c_link_check_send_pkts (p_ccb->p_lcb, NULL, p_buf);
+
+    p_ccb->fcrb.last_ack_sent = p_ccb->fcrb.next_seq_expected;
+
+    alarm_cancel(p_ccb->fcrb.ack_timer);
+}
+
+
+/*******************************************************************************
+**
+** Function         l2c_fcr_proc_pdu
+**
+** Description      This function is the entry point for processing of a
+**                  received PDU when in flow control and/or retransmission modes.
+**
+** Returns          -
+**
+*******************************************************************************/
+void l2c_fcr_proc_pdu (tL2C_CCB *p_ccb, BT_HDR *p_buf)
+{
+    assert(p_ccb != NULL);
+    assert(p_buf != NULL);
+    UINT8       *p;
+    UINT16      fcs;
+    UINT16      min_pdu_len;
+    UINT16      ctrl_word;
+
+    /* Check the length */
+    min_pdu_len = (p_ccb->bypass_fcs == L2CAP_BYPASS_FCS) ?
+                  (UINT16)L2CAP_FCR_OVERHEAD : (UINT16)(L2CAP_FCS_LEN + L2CAP_FCR_OVERHEAD);
+
+    if (p_buf->len < min_pdu_len)
+    {
+        L2CAP_TRACE_WARNING ("Rx L2CAP PDU: CID: 0x%04x  Len too short: %u", p_ccb->local_cid, p_buf->len);
+        osi_free(p_buf);
+        return;
+    }
+
+    if (p_ccb->peer_cfg.fcr.mode == L2CAP_FCR_STREAM_MODE)
+    {
+        process_stream_frame (p_ccb, p_buf);
+        return;
+    }
+
+#if BT_TRACE_VERBOSE == TRUE
+    /* Get the control word */
+    p = ((UINT8 *)(p_buf+1)) + p_buf->offset;
+    STREAM_TO_UINT16 (ctrl_word, p);
+
+    if (ctrl_word & L2CAP_FCR_S_FRAME_BIT)
+    {
+        if ((((ctrl_word & L2CAP_FCR_SUP_BITS) >> L2CAP_FCR_SUP_SHIFT) == 1)
+         || (((ctrl_word & L2CAP_FCR_SUP_BITS) >> L2CAP_FCR_SUP_SHIFT) == 3))
+        {
+            /* REJ or SREJ */
+            L2CAP_TRACE_WARNING ("L2CAP eRTM Rx S-frame: cid: 0x%04x  Len: %u  Type: %s  ReqSeq: %u  P: %u  F: %u",
+                            p_ccb->local_cid, p_buf->len,
+                            SUP_types[(ctrl_word & L2CAP_FCR_SUP_BITS) >> L2CAP_FCR_SUP_SHIFT],
+                            (ctrl_word & L2CAP_FCR_REQ_SEQ_BITS) >> L2CAP_FCR_REQ_SEQ_BITS_SHIFT,
+                            (ctrl_word & L2CAP_FCR_P_BIT) >> L2CAP_FCR_P_BIT_SHIFT,
+                            (ctrl_word & L2CAP_FCR_F_BIT) >> L2CAP_FCR_F_BIT_SHIFT);
+        }
+        else
+        {
+            L2CAP_TRACE_EVENT ("L2CAP eRTM Rx S-frame: cid: 0x%04x  Len: %u  Type: %s  ReqSeq: %u  P: %u  F: %u",
+                            p_ccb->local_cid, p_buf->len,
+                            SUP_types[(ctrl_word & L2CAP_FCR_SUP_BITS) >> L2CAP_FCR_SUP_SHIFT],
+                            (ctrl_word & L2CAP_FCR_REQ_SEQ_BITS) >> L2CAP_FCR_REQ_SEQ_BITS_SHIFT,
+                            (ctrl_word & L2CAP_FCR_P_BIT) >> L2CAP_FCR_P_BIT_SHIFT,
+                            (ctrl_word & L2CAP_FCR_F_BIT) >> L2CAP_FCR_F_BIT_SHIFT);
+        }
+    }
+    else
+    {
+        L2CAP_TRACE_EVENT ("L2CAP eRTM Rx I-frame: cid: 0x%04x  Len: %u  SAR: %-12s  TxSeq: %u  ReqSeq: %u  F: %u",
+                            p_ccb->local_cid, p_buf->len,
+                            SAR_types[(ctrl_word & L2CAP_FCR_SAR_BITS) >> L2CAP_FCR_SAR_BITS_SHIFT],
+                            (ctrl_word & L2CAP_FCR_TX_SEQ_BITS) >> L2CAP_FCR_TX_SEQ_BITS_SHIFT,
+                            (ctrl_word & L2CAP_FCR_REQ_SEQ_BITS) >> L2CAP_FCR_REQ_SEQ_BITS_SHIFT,
+                            (ctrl_word & L2CAP_FCR_F_BIT) >> L2CAP_FCR_F_BIT_SHIFT);
+    }
+
+    L2CAP_TRACE_EVENT ("      eRTM Rx Nxt_tx_seq %u, Lst_rx_ack %u, Nxt_seq_exp %u, Lst_ack_snt %u, wt_q.cnt %u, tries %u",
+                       p_ccb->fcrb.next_tx_seq, p_ccb->fcrb.last_rx_ack,
+                       p_ccb->fcrb.next_seq_expected,
+                       p_ccb->fcrb.last_ack_sent,
+                       fixed_queue_length(p_ccb->fcrb.waiting_for_ack_q),
+                       p_ccb->fcrb.num_tries);
+
+#endif /* BT_TRACE_VERBOSE */
+
+    /* Verify FCS if using */
+    if (p_ccb->bypass_fcs != L2CAP_BYPASS_FCS)
+    {
+        p = ((UINT8 *)(p_buf+1)) + p_buf->offset + p_buf->len - L2CAP_FCS_LEN;
+
+        /* Extract and drop the FCS from the packet */
+        STREAM_TO_UINT16 (fcs, p);
+        p_buf->len -= L2CAP_FCS_LEN;
+
+        if (l2c_fcr_rx_get_fcs(p_buf) != fcs)
+        {
+            L2CAP_TRACE_WARNING ("Rx L2CAP PDU: CID: 0x%04x  BAD FCS", p_ccb->local_cid);
+            osi_free(p_buf);
+            return;
+        }
+    }
+
+    /* Get the control word */
+    p = ((UINT8 *)(p_buf+1)) + p_buf->offset;
+
+    STREAM_TO_UINT16 (ctrl_word, p);
+
+    p_buf->len    -= L2CAP_FCR_OVERHEAD;
+    p_buf->offset += L2CAP_FCR_OVERHEAD;
+
+    /* If we had a poll bit outstanding, check if we got a final response */
+    if (p_ccb->fcrb.wait_ack)
+    {
+        /* If final bit not set, ignore the frame unless it is a polled S-frame */
+        if ( !(ctrl_word & L2CAP_FCR_F_BIT) )
+        {
+            if ( (ctrl_word & L2CAP_FCR_P_BIT) && (ctrl_word & L2CAP_FCR_S_FRAME_BIT) )
+            {
+                if (p_ccb->fcrb.srej_sent)
+                    l2c_fcr_send_S_frame (p_ccb, L2CAP_FCR_SUP_SREJ, L2CAP_FCR_F_BIT);
+                else if (p_ccb->fcrb.local_busy)
+                    l2c_fcr_send_S_frame (p_ccb, L2CAP_FCR_SUP_RNR, L2CAP_FCR_F_BIT);
+                else
+                    l2c_fcr_send_S_frame (p_ccb, L2CAP_FCR_SUP_RR, L2CAP_FCR_F_BIT);
+
+                /* Got a poll while in wait_ack state, so re-start our timer with 1-second */
+                /* This is a small optimization... the monitor timer is 12 secs, but we saw */
+                /* that if the other side sends us a poll when we are waiting for a final,  */
+                /* then it speeds up recovery significantly if we poll him back soon after his poll. */
+                alarm_set_on_queue(p_ccb->fcrb.mon_retrans_timer,
+                                   BT_1SEC_TIMEOUT_MS,
+                                   l2c_ccb_timer_timeout, p_ccb,
+                                   btu_general_alarm_queue);
+            }
+            osi_free(p_buf);
+            return;
+        }
+
+        p_ccb->fcrb.wait_ack  = FALSE;
+
+        /* P and F are mutually exclusive */
+        if (ctrl_word & L2CAP_FCR_S_FRAME_BIT)
+            ctrl_word &= ~L2CAP_FCR_P_BIT;
+
+        if (fixed_queue_is_empty(p_ccb->fcrb.waiting_for_ack_q))
+            p_ccb->fcrb.num_tries = 0;
+
+        l2c_fcr_stop_timer (p_ccb);
+    }
+    else
+    {
+        /* Otherwise, ensure the final bit is ignored */
+        ctrl_word &= ~L2CAP_FCR_F_BIT;
+    }
+
+    /* Process receive sequence number */
+    if (!process_reqseq (p_ccb, ctrl_word))
+    {
+        osi_free(p_buf);
+        return;
+    }
+
+     /* Process based on whether it is an S-frame or an I-frame */
+    if (ctrl_word & L2CAP_FCR_S_FRAME_BIT)
+        process_s_frame (p_ccb, p_buf, ctrl_word);
+    else
+        process_i_frame (p_ccb, p_buf, ctrl_word, FALSE);
+
+    /* Return if the channel got disconnected by a bad packet or max retransmissions */
+    if ( (!p_ccb->in_use) || (p_ccb->chnl_state != CST_OPEN) )
+        return;
+
+    /* If we have some buffers held while doing SREJ, and SREJ has cleared, process them now */
+    if ( (!p_ccb->fcrb.local_busy) && (!p_ccb->fcrb.srej_sent) &&
+         (!fixed_queue_is_empty(p_ccb->fcrb.srej_rcv_hold_q)))
+    {
+        fixed_queue_t *temp_q = p_ccb->fcrb.srej_rcv_hold_q;
+        p_ccb->fcrb.srej_rcv_hold_q = fixed_queue_new(SIZE_MAX);
+
+        while ((p_buf = (BT_HDR *)fixed_queue_try_dequeue(temp_q)) != NULL)
+        {
+            if (p_ccb->in_use && (p_ccb->chnl_state == CST_OPEN))
+            {
+                /* Get the control word */
+                p = ((UINT8 *)(p_buf+1)) + p_buf->offset - L2CAP_FCR_OVERHEAD;
+
+                STREAM_TO_UINT16 (ctrl_word, p);
+
+                L2CAP_TRACE_DEBUG ("l2c_fcr_proc_pdu() CID: 0x%04x  Process Buffer from SREJ_Hold_Q   TxSeq: %u  Expected_Seq: %u",
+                                    p_ccb->local_cid, (ctrl_word & L2CAP_FCR_TX_SEQ_BITS) >> L2CAP_FCR_TX_SEQ_BITS_SHIFT,
+                                    p_ccb->fcrb.next_seq_expected);
+
+                /* Process the SREJ held I-frame, but do not send an RR for each individual frame */
+                process_i_frame (p_ccb, p_buf, ctrl_word, TRUE);
+            }
+            else
+                osi_free(p_buf);
+
+            /* If more frames were lost during SREJ, send a REJ */
+            if (p_ccb->fcrb.rej_after_srej)
+            {
+                p_ccb->fcrb.rej_after_srej = FALSE;
+                p_ccb->fcrb.rej_sent       = TRUE;
+
+                l2c_fcr_send_S_frame (p_ccb, L2CAP_FCR_SUP_REJ, 0);
+            }
+        }
+        fixed_queue_free(temp_q, NULL);
+
+        /* Now, if needed, send one RR for the whole held queue */
+        if ( (!p_ccb->fcrb.local_busy) && (!p_ccb->fcrb.rej_sent) && (!p_ccb->fcrb.srej_sent)
+         &&  (p_ccb->fcrb.next_seq_expected != p_ccb->fcrb.last_ack_sent) )
+            l2c_fcr_send_S_frame (p_ccb, L2CAP_FCR_SUP_RR, 0);
+        else
+        {
+            L2CAP_TRACE_DEBUG ("l2c_fcr_proc_pdu() not sending RR CID: 0x%04x  local_busy:%d rej_sent:%d srej_sent:%d Expected_Seq:%u Last_Ack:%u",
+                                p_ccb->local_cid, p_ccb->fcrb.local_busy, p_ccb->fcrb.rej_sent, p_ccb->fcrb.srej_sent, p_ccb->fcrb.next_seq_expected,
+                                p_ccb->fcrb.last_ack_sent);
+        }
+    }
+
+    /* If a window has opened, check if we can send any more packets */
+    if ( (!fixed_queue_is_empty(p_ccb->fcrb.retrans_q) ||
+          !fixed_queue_is_empty(p_ccb->xmit_hold_q))
+      && (p_ccb->fcrb.wait_ack == FALSE)
+      && (l2c_fcr_is_flow_controlled (p_ccb) == FALSE) )
+    {
+        l2c_link_check_send_pkts (p_ccb->p_lcb, NULL, NULL);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         l2c_lcc_proc_pdu
+**
+** Description      This function is the entry point for processing of a
+**                  received PDU when in LE Coc flow control modes.
+**
+** Returns          -
+**
+*******************************************************************************/
+void l2c_lcc_proc_pdu(tL2C_CCB *p_ccb, BT_HDR *p_buf)
+{
+
+    assert(p_ccb != NULL);
+    assert(p_buf != NULL);
+    UINT8  *p = (UINT8*)(p_buf + 1) + p_buf->offset;
+    UINT16 sdu_length;
+    BT_HDR *p_data = NULL;
+
+    /* Buffer length should not exceed local mps */
+    if (p_buf->len > p_ccb->local_conn_cfg.mps)
+    {
+        /* Discard the buffer */
+        osi_free(p_buf);
+        return;
+    }
+
+    if (p_ccb->is_first_seg)
+    {
+        STREAM_TO_UINT16(sdu_length, p);
+        /* Check the SDU Length with local MTU size */
+        if (sdu_length > p_ccb->local_conn_cfg.mtu)
+        {
+            /* Discard the buffer */
+            osi_free(p_buf);
+            return;
+        }
+
+
+        if ((p_data = (BT_HDR *) osi_malloc(L2CAP_MAX_BUF_SIZE)) == NULL)
+        {
+            osi_free(p_buf);
+            return;
+        }
+
+        p_ccb->ble_sdu = p_data;
+        p_data->len = 0;
+        p_ccb->ble_sdu_length = sdu_length;
+        L2CAP_TRACE_DEBUG ("%s SDU Length = %d",__func__,sdu_length);
+        p_buf->len -= sizeof(sdu_length);
+        p_buf->offset += sizeof(sdu_length);
+        p_data->offset = 0;
+
+    }
+    else
+        p_data = p_ccb->ble_sdu;
+
+    memcpy((UINT8*)(p_data + 1) + p_data->offset + p_data->len, (UINT8*)(p_buf + 1) + p_buf->offset, p_buf->len);
+    p_data->len += p_buf->len;
+    p = (UINT8*)(p_data+1) + p_data->offset;
+    if (p_data->len == p_ccb->ble_sdu_length)
+    {
+        l2c_csm_execute (p_ccb, L2CEVT_L2CAP_DATA, p_data);
+        p_ccb->is_first_seg = TRUE;
+        p_ccb->ble_sdu = NULL;
+        p_ccb->ble_sdu_length = 0;
+    }
+    else if (p_data->len < p_ccb->ble_sdu_length)
+    {
+        p_ccb->is_first_seg = FALSE;
+    }
+    else
+    {
+        L2CAP_TRACE_ERROR ("%s Length in the SDU messed up",__func__);
+        // TODO: reset every thing may be???
+    }
+
+    osi_free(p_buf);
+    return;
+}
+
+/*******************************************************************************
+**
+** Function         l2c_fcr_proc_tout
+**
+** Description      Handle a timeout. We should be in error recovery state.
+**
+** Returns          -
+**
+*******************************************************************************/
+void l2c_fcr_proc_tout (tL2C_CCB *p_ccb)
+{
+    assert(p_ccb != NULL);
+    L2CAP_TRACE_DEBUG ("l2c_fcr_proc_tout:  CID: 0x%04x  num_tries: %u (max: %u)  wait_ack: %u  ack_q_count: %u",
+                       p_ccb->local_cid, p_ccb->fcrb.num_tries,
+                       p_ccb->peer_cfg.fcr.max_transmit,
+                       p_ccb->fcrb.wait_ack,
+                       fixed_queue_length(p_ccb->fcrb.waiting_for_ack_q));
+
+#if (L2CAP_ERTM_STATS == TRUE)
+    p_ccb->fcrb.retrans_touts++;
+#endif
+
+    if ( (p_ccb->peer_cfg.fcr.max_transmit != 0) && (++p_ccb->fcrb.num_tries > p_ccb->peer_cfg.fcr.max_transmit) )
+    {
+        l2cu_disconnect_chnl (p_ccb);
+    }
+    else
+    {
+        if (!p_ccb->fcrb.srej_sent && !p_ccb->fcrb.rej_sent)
+        {
+            if (p_ccb->fcrb.local_busy)
+                l2c_fcr_send_S_frame (p_ccb, L2CAP_FCR_SUP_RNR, L2CAP_FCR_P_BIT);
+            else
+                l2c_fcr_send_S_frame (p_ccb, L2CAP_FCR_SUP_RR, L2CAP_FCR_P_BIT);
+        }
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         l2c_fcr_proc_ack_tout
+**
+** Description      Send RR/RNR if we have not acked I frame
+**
+** Returns          -
+**
+*******************************************************************************/
+void l2c_fcr_proc_ack_tout (tL2C_CCB *p_ccb)
+{
+    assert(p_ccb != NULL);
+    L2CAP_TRACE_DEBUG ("l2c_fcr_proc_ack_tout:  CID: 0x%04x State: %u  Wack:%u  Rq:%d  Acked:%d", p_ccb->local_cid,
+                        p_ccb->chnl_state, p_ccb->fcrb.wait_ack, p_ccb->fcrb.next_seq_expected, p_ccb->fcrb.last_ack_sent);
+
+    if ( (p_ccb->chnl_state == CST_OPEN) && (!p_ccb->fcrb.wait_ack)
+      && (p_ccb->fcrb.last_ack_sent != p_ccb->fcrb.next_seq_expected) )
+    {
+#if (L2CAP_ERTM_STATS == TRUE)
+        p_ccb->fcrb.xmit_ack_touts++;
+#endif
+        if (p_ccb->fcrb.local_busy)
+            l2c_fcr_send_S_frame (p_ccb, L2CAP_FCR_SUP_RNR, 0);
+        else
+            l2c_fcr_send_S_frame (p_ccb, L2CAP_FCR_SUP_RR, 0);
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         process_reqseq
+**
+** Description      Handle receive sequence number
+**
+** Returns          -
+**
+*******************************************************************************/
+static BOOLEAN process_reqseq (tL2C_CCB *p_ccb, UINT16 ctrl_word)
+{
+    assert(p_ccb != NULL);
+    tL2C_FCRB   *p_fcrb = &p_ccb->fcrb;
+    UINT8       req_seq, num_bufs_acked, xx;
+    UINT16      ls;
+    UINT16      full_sdus_xmitted;
+
+    /* Receive sequence number does not ack anything for SREJ with P-bit set to zero */
+    if ( (ctrl_word & L2CAP_FCR_S_FRAME_BIT)
+     &&  ((ctrl_word & L2CAP_FCR_SUP_BITS) == (L2CAP_FCR_SUP_SREJ << L2CAP_FCR_SUP_SHIFT))
+     &&  ((ctrl_word & L2CAP_FCR_P_BIT) == 0) )
+    {
+        /* If anything still waiting for ack, restart the timer if it was stopped */
+        if (!fixed_queue_is_empty(p_fcrb->waiting_for_ack_q))
+            l2c_fcr_start_timer(p_ccb);
+
+        return (TRUE);
+    }
+
+    /* Extract the receive sequence number from the control word */
+    req_seq = (ctrl_word & L2CAP_FCR_REQ_SEQ_BITS) >> L2CAP_FCR_REQ_SEQ_BITS_SHIFT;
+
+    num_bufs_acked = (req_seq - p_fcrb->last_rx_ack) & L2CAP_FCR_SEQ_MODULO;
+
+    /* Verify the request sequence is in range before proceeding */
+    if (num_bufs_acked > fixed_queue_length(p_fcrb->waiting_for_ack_q))
+    {
+        /* The channel is closed if ReqSeq is not in range */
+        L2CAP_TRACE_WARNING ("L2CAP eRTM Frame BAD Req_Seq - ctrl_word: 0x%04x  req_seq 0x%02x  last_rx_ack: 0x%02x  QCount: %u",
+                             ctrl_word, req_seq, p_fcrb->last_rx_ack,
+                             fixed_queue_length(p_fcrb->waiting_for_ack_q));
+
+        l2cu_disconnect_chnl (p_ccb);
+        return (FALSE);
+    }
+
+    p_fcrb->last_rx_ack = req_seq;
+
+    /* Now we can release all acknowledged frames, and restart the retransmission timer if needed */
+    if (num_bufs_acked != 0)
+    {
+        p_fcrb->num_tries = 0;
+        full_sdus_xmitted = 0;
+
+#if (L2CAP_ERTM_STATS == TRUE)
+        l2c_fcr_collect_ack_delay (p_ccb, num_bufs_acked);
+#endif
+
+        for (xx = 0; xx < num_bufs_acked; xx++)
+        {
+            BT_HDR *p_tmp = (BT_HDR *)fixed_queue_try_dequeue(p_fcrb->waiting_for_ack_q);
+            ls = p_tmp->layer_specific & L2CAP_FCR_SAR_BITS;
+
+            if ( (ls == L2CAP_FCR_UNSEG_SDU) || (ls == L2CAP_FCR_END_SDU) )
+                full_sdus_xmitted++;
+
+            osi_free(p_tmp);
+        }
+
+        /* If we are still in a wait_ack state, do not mess with the timer */
+        if (!p_ccb->fcrb.wait_ack)
+            l2c_fcr_stop_timer (p_ccb);
+
+        /* Check if we need to call the "packet_sent" callback */
+        if ( (p_ccb->p_rcb) && (p_ccb->p_rcb->api.pL2CA_TxComplete_Cb) && (full_sdus_xmitted) )
+        {
+            /* Special case for eRTM, if all packets sent, send 0xFFFF */
+            if (fixed_queue_is_empty(p_fcrb->waiting_for_ack_q) &&
+                fixed_queue_is_empty(p_ccb->xmit_hold_q)) {
+                full_sdus_xmitted = 0xFFFF;
+            }
+
+            (*p_ccb->p_rcb->api.pL2CA_TxComplete_Cb)(p_ccb->local_cid, full_sdus_xmitted);
+        }
+    }
+
+    /* If anything still waiting for ack, restart the timer if it was stopped */
+    if (!fixed_queue_is_empty(p_fcrb->waiting_for_ack_q))
+        l2c_fcr_start_timer(p_ccb);
+    return (TRUE);
+}
+
+
+/*******************************************************************************
+**
+** Function         process_s_frame
+**
+** Description      Process an S frame
+**
+** Returns          -
+**
+*******************************************************************************/
+static void process_s_frame (tL2C_CCB *p_ccb, BT_HDR *p_buf, UINT16 ctrl_word)
+{
+    assert(p_ccb != NULL);
+    assert(p_buf != NULL);
+
+    tL2C_FCRB   *p_fcrb      = &p_ccb->fcrb;
+    UINT16      s_frame_type = (ctrl_word & L2CAP_FCR_SUP_BITS) >> L2CAP_FCR_SUP_SHIFT;
+    BOOLEAN     remote_was_busy;
+    BOOLEAN     all_ok = TRUE;
+
+    if (p_buf->len != 0)
+    {
+        L2CAP_TRACE_WARNING ("Incorrect S-frame Length (%d)", p_buf->len);
+    }
+
+    L2CAP_TRACE_DEBUG ("process_s_frame ctrl_word 0x%04x fcrb_remote_busy:%d", ctrl_word, p_fcrb->remote_busy);
+
+#if (L2CAP_ERTM_STATS == TRUE)
+    p_ccb->fcrb.s_frames_rcvd[s_frame_type]++;
+#endif
+
+    if (ctrl_word & L2CAP_FCR_P_BIT)
+    {
+        p_fcrb->rej_sent   = FALSE;             /* After checkpoint, we can send anoher REJ */
+        p_fcrb->send_f_rsp = TRUE;              /* Set a flag in case an I-frame is pending */
+    }
+
+    switch (s_frame_type)
+    {
+    case L2CAP_FCR_SUP_RR:
+        remote_was_busy     = p_fcrb->remote_busy;
+        p_fcrb->remote_busy = FALSE;
+
+        if ( (ctrl_word & L2CAP_FCR_F_BIT) || (remote_was_busy) )
+            all_ok = retransmit_i_frames (p_ccb, L2C_FCR_RETX_ALL_PKTS);
+        break;
+
+    case L2CAP_FCR_SUP_REJ:
+        p_fcrb->remote_busy = FALSE;
+        all_ok = retransmit_i_frames (p_ccb, L2C_FCR_RETX_ALL_PKTS);
+        break;
+
+    case L2CAP_FCR_SUP_RNR:
+        p_fcrb->remote_busy = TRUE;
+        l2c_fcr_stop_timer (p_ccb);
+        break;
+
+    case L2CAP_FCR_SUP_SREJ:
+        p_fcrb->remote_busy = FALSE;
+        all_ok = retransmit_i_frames (p_ccb, (UINT8)((ctrl_word & L2CAP_FCR_REQ_SEQ_BITS) >> L2CAP_FCR_REQ_SEQ_BITS_SHIFT));
+        break;
+    }
+
+    if (all_ok)
+    {
+        /* If polled, we need to respond with F-bit. Note, we may have sent a I-frame with the F-bit */
+        if (p_fcrb->send_f_rsp)
+        {
+            if (p_fcrb->srej_sent)
+                l2c_fcr_send_S_frame (p_ccb, L2CAP_FCR_SUP_SREJ, L2CAP_FCR_F_BIT);
+            else if (p_fcrb->local_busy)
+                l2c_fcr_send_S_frame (p_ccb, L2CAP_FCR_SUP_RNR, L2CAP_FCR_F_BIT);
+            else
+                l2c_fcr_send_S_frame (p_ccb, L2CAP_FCR_SUP_RR, L2CAP_FCR_F_BIT);
+
+            p_fcrb->send_f_rsp = FALSE;
+        }
+    }
+    else
+    {
+        L2CAP_TRACE_DEBUG ("process_s_frame hit_max_retries");
+    }
+
+    osi_free(p_buf);
+}
+
+
+/*******************************************************************************
+**
+** Function         process_i_frame
+**
+** Description      Process an I frame
+**
+** Returns          -
+**
+*******************************************************************************/
+static void process_i_frame (tL2C_CCB *p_ccb, BT_HDR *p_buf, UINT16 ctrl_word, BOOLEAN delay_ack)
+{
+    assert(p_ccb != NULL);
+    assert(p_buf != NULL);
+
+    tL2C_FCRB   *p_fcrb = &p_ccb->fcrb;
+    UINT8       tx_seq, num_lost, num_to_ack, next_srej;
+
+    /* If we were doing checkpoint recovery, first retransmit all unacked I-frames */
+    if (ctrl_word & L2CAP_FCR_F_BIT)
+    {
+        if (!retransmit_i_frames (p_ccb, L2C_FCR_RETX_ALL_PKTS))
+        {
+            osi_free(p_buf);
+            return;
+        }
+    }
+
+#if (L2CAP_ERTM_STATS == TRUE)
+    p_ccb->fcrb.ertm_pkt_counts[1]++;
+    p_ccb->fcrb.ertm_byte_counts[1] += p_buf->len;
+#endif
+
+    /* Extract the sequence number */
+    tx_seq = (ctrl_word & L2CAP_FCR_TX_SEQ_BITS) >> L2CAP_FCR_TX_SEQ_BITS_SHIFT;
+
+    /* If we have flow controlled the peer, ignore any bad I-frames from him */
+    if ( (tx_seq != p_fcrb->next_seq_expected) && (p_fcrb->local_busy) )
+    {
+        L2CAP_TRACE_WARNING ("Dropping bad I-Frame since we flowed off, tx_seq:%u", tx_seq);
+        l2c_fcr_send_S_frame (p_ccb, L2CAP_FCR_SUP_RNR, 0);
+        osi_free(p_buf);
+        return;
+    }
+
+    /* Check if tx-sequence is the expected one */
+    if (tx_seq != p_fcrb->next_seq_expected)
+    {
+        num_lost = (tx_seq - p_fcrb->next_seq_expected) & L2CAP_FCR_SEQ_MODULO;
+
+        /* Is the frame a duplicate ? If so, just drop it */
+        if (num_lost >= p_ccb->our_cfg.fcr.tx_win_sz)
+        {
+            /* Duplicate - simply drop it */
+            L2CAP_TRACE_WARNING ("process_i_frame() Dropping Duplicate Frame tx_seq:%u  ExpectedTxSeq %u", tx_seq, p_fcrb->next_seq_expected);
+            osi_free(p_buf);
+        }
+        else
+        {
+            L2CAP_TRACE_WARNING ("process_i_frame() CID: 0x%04x  Lost: %u  tx_seq:%u  ExpTxSeq %u  Rej: %u  SRej: %u",
+                                 p_ccb->local_cid, num_lost, tx_seq, p_fcrb->next_seq_expected, p_fcrb->rej_sent, p_fcrb->srej_sent);
+
+            if (p_fcrb->srej_sent)
+            {
+                /* If SREJ sent, save the frame for later processing as long as it is in sequence */
+                next_srej = (((BT_HDR *)fixed_queue_try_peek_last(p_fcrb->srej_rcv_hold_q))->layer_specific + 1) & L2CAP_FCR_SEQ_MODULO;
+
+                if ( (tx_seq == next_srej) && (fixed_queue_length(p_fcrb->srej_rcv_hold_q) < p_ccb->our_cfg.fcr.tx_win_sz) )
+                {
+                    /* If user gave us a pool for held rx buffers, use that */
+                    /* TODO: Could that happen? Get rid of this code. */
+                    if (p_ccb->ertm_info.fcr_rx_buf_size != L2CAP_FCR_RX_BUF_SIZE)
+                    {
+                        BT_HDR *p_buf2;
+
+                        /* Adjust offset and len so that control word is copied */
+                        p_buf->offset -= L2CAP_FCR_OVERHEAD;
+                        p_buf->len    += L2CAP_FCR_OVERHEAD;
+
+                        p_buf2 = l2c_fcr_clone_buf(p_buf, p_buf->offset, p_buf->len);
+
+                        if (p_buf2)
+                        {
+                            osi_free(p_buf);
+                            p_buf = p_buf2;
+                        }
+                        p_buf->offset += L2CAP_FCR_OVERHEAD;
+                        p_buf->len -= L2CAP_FCR_OVERHEAD;
+                    }
+                    L2CAP_TRACE_DEBUG ("process_i_frame() Lost: %u  tx_seq:%u  ExpTxSeq %u  Rej: %u  SRej1",
+                                         num_lost, tx_seq, p_fcrb->next_seq_expected, p_fcrb->rej_sent);
+
+                    p_buf->layer_specific = tx_seq;
+                    fixed_queue_enqueue(p_fcrb->srej_rcv_hold_q, p_buf);
+                }
+                else
+                {
+                    L2CAP_TRACE_WARNING ("process_i_frame() CID: 0x%04x  frame dropped in Srej Sent next_srej:%u  hold_q.count:%u  win_sz:%u",
+                                         p_ccb->local_cid, next_srej, fixed_queue_length(p_fcrb->srej_rcv_hold_q), p_ccb->our_cfg.fcr.tx_win_sz);
+
+                    p_fcrb->rej_after_srej = TRUE;
+                    osi_free(p_buf);
+                }
+            }
+            else if (p_fcrb->rej_sent)
+            {
+                L2CAP_TRACE_WARNING ("process_i_frame() CID: 0x%04x  Lost: %u  tx_seq:%u  ExpTxSeq %u  Rej: 1  SRej: %u",
+                                     p_ccb->local_cid, num_lost, tx_seq, p_fcrb->next_seq_expected, p_fcrb->srej_sent);
+
+                /* If REJ sent, just drop the frame */
+                osi_free(p_buf);
+            }
+            else
+            {
+                L2CAP_TRACE_DEBUG ("process_i_frame() CID: 0x%04x  tx_seq:%u  ExpTxSeq %u  Rej: %u",
+                                     p_ccb->local_cid, tx_seq, p_fcrb->next_seq_expected, p_fcrb->rej_sent);
+
+                /* If only one lost, we will send SREJ, otherwise we will send REJ */
+                if (num_lost > 1)
+                {
+                    osi_free(p_buf);
+                    p_fcrb->rej_sent = TRUE;
+                    l2c_fcr_send_S_frame (p_ccb, L2CAP_FCR_SUP_REJ, 0);
+                }
+                else
+                {
+                    if (!fixed_queue_is_empty(p_fcrb->srej_rcv_hold_q))
+                    {
+                        L2CAP_TRACE_ERROR ("process_i_frame() CID: 0x%04x  sending SREJ tx_seq:%d hold_q.count:%u",
+                                             p_ccb->local_cid, tx_seq, fixed_queue_length(p_fcrb->srej_rcv_hold_q));
+                    }
+                    p_buf->layer_specific = tx_seq;
+                    fixed_queue_enqueue(p_fcrb->srej_rcv_hold_q, p_buf);
+                    p_fcrb->srej_sent = TRUE;
+                    l2c_fcr_send_S_frame (p_ccb, L2CAP_FCR_SUP_SREJ, 0);
+                }
+                alarm_cancel(p_ccb->fcrb.ack_timer);
+            }
+        }
+        return;
+    }
+
+    /* Seq number is the next expected. Clear possible reject exception in case it occured */
+    p_fcrb->rej_sent = p_fcrb->srej_sent = FALSE;
+
+    /* Adjust the next_seq, so that if the upper layer sends more data in the callback
+       context, the received frame is acked by an I-frame. */
+    p_fcrb->next_seq_expected = (tx_seq + 1) & L2CAP_FCR_SEQ_MODULO;
+
+    /* If any SAR problem in eRTM mode, spec says disconnect. */
+    if (!do_sar_reassembly (p_ccb, p_buf, ctrl_word))
+    {
+        L2CAP_TRACE_WARNING ("process_i_frame() CID: 0x%04x  reassembly failed", p_ccb->local_cid);
+        l2cu_disconnect_chnl (p_ccb);
+        return;
+    }
+
+    /* RR optimization - if peer can still send us more, then start an ACK timer */
+    num_to_ack = (p_fcrb->next_seq_expected - p_fcrb->last_ack_sent) & L2CAP_FCR_SEQ_MODULO;
+
+    if ( (num_to_ack < p_ccb->fcrb.max_held_acks) && (!p_fcrb->local_busy) )
+        delay_ack = TRUE;
+
+    /* We should neve never ack frame if we are not in OPEN state */
+    if ((num_to_ack != 0) && p_ccb->in_use && (p_ccb->chnl_state == CST_OPEN))
+    {
+        /* If no frames are awaiting transmission or are held, send an RR or RNR S-frame for ack */
+        if (delay_ack)
+        {
+            /* If it is the first I frame we did not ack, start ack timer */
+            if (!alarm_is_scheduled(p_ccb->fcrb.ack_timer)) {
+                alarm_set_on_queue(p_ccb->fcrb.ack_timer,
+                                   L2CAP_FCR_ACK_TIMEOUT_MS,
+                                   l2c_fcrb_ack_timer_timeout, p_ccb,
+                                   btu_general_alarm_queue);
+            }
+        }
+        else if ((fixed_queue_is_empty(p_ccb->xmit_hold_q) ||
+                  l2c_fcr_is_flow_controlled(p_ccb))
+                 && fixed_queue_is_empty(p_ccb->fcrb.srej_rcv_hold_q))
+        {
+            if (p_fcrb->local_busy)
+                l2c_fcr_send_S_frame (p_ccb, L2CAP_FCR_SUP_RNR, 0);
+            else
+                l2c_fcr_send_S_frame (p_ccb, L2CAP_FCR_SUP_RR, 0);
+        }
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         process_stream_frame
+**
+** Description      This function processes frames in streaming mode
+**
+** Returns          -
+**
+*******************************************************************************/
+static void process_stream_frame (tL2C_CCB *p_ccb, BT_HDR *p_buf)
+{
+    assert(p_ccb != NULL);
+    assert(p_buf != NULL);
+
+    UINT16      ctrl_word;
+    UINT16      fcs;
+    UINT8       *p;
+    UINT8       tx_seq;
+
+    /* Verify FCS if using */
+    if (p_ccb->bypass_fcs != L2CAP_BYPASS_FCS)
+    {
+        p = ((UINT8 *)(p_buf+1)) + p_buf->offset + p_buf->len - L2CAP_FCS_LEN;
+
+        /* Extract and drop the FCS from the packet */
+        STREAM_TO_UINT16 (fcs, p);
+        p_buf->len -= L2CAP_FCS_LEN;
+
+        if (l2c_fcr_rx_get_fcs(p_buf) != fcs)
+        {
+            L2CAP_TRACE_WARNING ("Rx L2CAP PDU: CID: 0x%04x  BAD FCS", p_ccb->local_cid);
+            osi_free(p_buf);
+            return;
+        }
+    }
+
+    /* Get the control word */
+    p = ((UINT8 *)(p_buf+1)) + p_buf->offset;
+
+    STREAM_TO_UINT16 (ctrl_word, p);
+
+    p_buf->len    -= L2CAP_FCR_OVERHEAD;
+    p_buf->offset += L2CAP_FCR_OVERHEAD;
+
+    /* Make sure it is an I-frame */
+    if (ctrl_word & L2CAP_FCR_S_FRAME_BIT)
+    {
+        L2CAP_TRACE_WARNING ("Rx L2CAP PDU: CID: 0x%04x  BAD S-frame in streaming mode  ctrl_word: 0x%04x", p_ccb->local_cid, ctrl_word);
+        osi_free(p_buf);
+        return;
+    }
+
+#if BT_TRACE_VERBOSE == TRUE
+    L2CAP_TRACE_EVENT ("L2CAP eRTM Rx I-frame: cid: 0x%04x  Len: %u  SAR: %-12s  TxSeq: %u  ReqSeq: %u  F: %u",
+                        p_ccb->local_cid, p_buf->len,
+                        SAR_types[(ctrl_word & L2CAP_FCR_SAR_BITS) >> L2CAP_FCR_SAR_BITS_SHIFT],
+                        (ctrl_word & L2CAP_FCR_TX_SEQ_BITS) >> L2CAP_FCR_TX_SEQ_BITS_SHIFT,
+                        (ctrl_word & L2CAP_FCR_REQ_SEQ_BITS) >> L2CAP_FCR_REQ_SEQ_BITS_SHIFT,
+                        (ctrl_word & L2CAP_FCR_F_BIT) >> L2CAP_FCR_F_BIT_SHIFT);
+#endif
+
+    /* Extract the sequence number */
+    tx_seq = (ctrl_word & L2CAP_FCR_TX_SEQ_BITS) >> L2CAP_FCR_TX_SEQ_BITS_SHIFT;
+
+    /* Check if tx-sequence is the expected one */
+    if (tx_seq != p_ccb->fcrb.next_seq_expected)
+    {
+        L2CAP_TRACE_WARNING ("Rx L2CAP PDU: CID: 0x%04x  Lost frames Exp: %u  Got: %u  p_rx_sdu: 0x%08x",
+                                p_ccb->local_cid, p_ccb->fcrb.next_seq_expected, tx_seq, p_ccb->fcrb.p_rx_sdu);
+
+        /* Lost one or more packets, so flush the SAR queue */
+        osi_free_and_reset((void **)&p_ccb->fcrb.p_rx_sdu);
+    }
+
+    p_ccb->fcrb.next_seq_expected = (tx_seq + 1) & L2CAP_FCR_SEQ_MODULO;
+
+    if (!do_sar_reassembly (p_ccb, p_buf, ctrl_word))
+    {
+        /* Some sort of SAR error, so flush the SAR queue */
+        osi_free_and_reset((void **)&p_ccb->fcrb.p_rx_sdu);
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         do_sar_reassembly
+**
+** Description      Process SAR bits and re-assemble frame
+**
+** Returns          TRUE if all OK, else FALSE
+**
+*******************************************************************************/
+static BOOLEAN do_sar_reassembly (tL2C_CCB *p_ccb, BT_HDR *p_buf, UINT16 ctrl_word)
+{
+    assert(p_ccb != NULL);
+    assert(p_buf != NULL);
+
+    tL2C_FCRB   *p_fcrb = &p_ccb->fcrb;
+    UINT16      sar_type = ctrl_word & L2CAP_FCR_SEG_BITS;
+    BOOLEAN     packet_ok = TRUE;
+    UINT8       *p;
+
+    /* Check if the SAR state is correct */
+    if ((sar_type == L2CAP_FCR_UNSEG_SDU) || (sar_type == L2CAP_FCR_START_SDU))
+    {
+        if (p_fcrb->p_rx_sdu != NULL)
+        {
+            L2CAP_TRACE_WARNING ("SAR - got unexpected unsegmented or start SDU  Expected len: %u  Got so far: %u",
+                                  p_fcrb->rx_sdu_len, p_fcrb->p_rx_sdu->len);
+
+            packet_ok = FALSE;
+        }
+        /* Check the length of the packet */
+        if ( (sar_type == L2CAP_FCR_START_SDU) && (p_buf->len < L2CAP_SDU_LEN_OVERHEAD) )
+        {
+            L2CAP_TRACE_WARNING ("SAR start packet too short: %u", p_buf->len);
+            packet_ok = FALSE;
+        }
+    }
+    else
+    {
+        if (p_fcrb->p_rx_sdu == NULL)
+        {
+            L2CAP_TRACE_WARNING ("SAR - got unexpected cont or end SDU");
+            packet_ok = FALSE;
+        }
+    }
+
+    if ( (packet_ok) && (sar_type != L2CAP_FCR_UNSEG_SDU) )
+    {
+        p = ((UINT8 *)(p_buf + 1)) + p_buf->offset;
+
+        /* For start SDU packet, extract the SDU length */
+        if (sar_type == L2CAP_FCR_START_SDU)
+        {
+            /* Get the SDU length */
+            STREAM_TO_UINT16 (p_fcrb->rx_sdu_len, p);
+            p_buf->offset += 2;
+            p_buf->len    -= 2;
+
+            if (p_fcrb->rx_sdu_len > p_ccb->max_rx_mtu)
+            {
+                L2CAP_TRACE_WARNING ("SAR - SDU len: %u  larger than MTU: %u", p_fcrb->rx_sdu_len, p_fcrb->rx_sdu_len);
+                packet_ok = FALSE;
+            } else {
+                p_fcrb->p_rx_sdu = (BT_HDR *)osi_malloc(L2CAP_MAX_BUF_SIZE);
+                p_fcrb->p_rx_sdu->offset = OBX_BUF_MIN_OFFSET;
+                p_fcrb->p_rx_sdu->len = 0;
+            }
+        }
+
+        if (packet_ok)
+        {
+            if ((p_fcrb->p_rx_sdu->len + p_buf->len) > p_fcrb->rx_sdu_len)
+            {
+                L2CAP_TRACE_ERROR ("SAR - SDU len exceeded  Type: %u   Lengths: %u %u %u",
+                                    sar_type, p_fcrb->p_rx_sdu->len, p_buf->len, p_fcrb->rx_sdu_len);
+                packet_ok = FALSE;
+            }
+            else if ( (sar_type == L2CAP_FCR_END_SDU) && ((p_fcrb->p_rx_sdu->len + p_buf->len) != p_fcrb->rx_sdu_len) )
+            {
+                L2CAP_TRACE_WARNING ("SAR - SDU end rcvd but SDU incomplete: %u %u %u",
+                                      p_fcrb->p_rx_sdu->len, p_buf->len, p_fcrb->rx_sdu_len);
+                packet_ok = FALSE;
+            }
+            else
+            {
+                memcpy (((UINT8 *) (p_fcrb->p_rx_sdu + 1)) + p_fcrb->p_rx_sdu->offset + p_fcrb->p_rx_sdu->len, p, p_buf->len);
+
+                p_fcrb->p_rx_sdu->len += p_buf->len;
+
+                osi_free(p_buf);
+                p_buf = NULL;
+
+                if (sar_type == L2CAP_FCR_END_SDU)
+                {
+                    p_buf            = p_fcrb->p_rx_sdu;
+                    p_fcrb->p_rx_sdu = NULL;
+                }
+            }
+        }
+    }
+
+    if (packet_ok == FALSE)
+    {
+        osi_free(p_buf);
+    }
+    else if (p_buf != NULL)
+    {
+#if (L2CAP_NUM_FIXED_CHNLS > 0)
+        if (p_ccb->local_cid < L2CAP_BASE_APPL_CID &&
+            (p_ccb->local_cid >= L2CAP_FIRST_FIXED_CHNL && p_ccb->local_cid <= L2CAP_LAST_FIXED_CHNL))
+        {
+            if (l2cb.fixed_reg[p_ccb->local_cid - L2CAP_FIRST_FIXED_CHNL].pL2CA_FixedData_Cb)
+                (*l2cb.fixed_reg[p_ccb->local_cid - L2CAP_FIRST_FIXED_CHNL].pL2CA_FixedData_Cb)
+                    (p_ccb->local_cid, p_ccb->p_lcb->remote_bd_addr, p_buf);
+        }
+        else
+#endif
+            l2c_csm_execute (p_ccb, L2CEVT_L2CAP_DATA, p_buf);
+    }
+
+    return (packet_ok);
+}
+
+
+/*******************************************************************************
+**
+** Function         retransmit_i_frames
+**
+** Description      This function retransmits i-frames awaiting acks.
+**
+** Returns          BOOLEAN - TRUE if retransmitted
+**
+*******************************************************************************/
+static BOOLEAN retransmit_i_frames (tL2C_CCB *p_ccb, UINT8 tx_seq)
+{
+    assert(p_ccb != NULL);
+
+    BT_HDR      *p_buf = NULL;
+    UINT8       *p;
+    UINT8       buf_seq;
+    UINT16      ctrl_word;
+
+    if ( (!fixed_queue_is_empty(p_ccb->fcrb.waiting_for_ack_q))
+     &&  (p_ccb->peer_cfg.fcr.max_transmit != 0)
+     &&  (p_ccb->fcrb.num_tries >= p_ccb->peer_cfg.fcr.max_transmit) )
+    {
+        L2CAP_TRACE_EVENT ("Max Tries Exceeded:  (last_acq: %d  CID: 0x%04x  num_tries: %u (max: %u) ack_q_count: %u",
+                p_ccb->fcrb.last_rx_ack, p_ccb->local_cid, p_ccb->fcrb.num_tries, p_ccb->peer_cfg.fcr.max_transmit,
+                fixed_queue_length(p_ccb->fcrb.waiting_for_ack_q));
+
+        l2cu_disconnect_chnl (p_ccb);
+        return (FALSE);
+    }
+
+    /* tx_seq indicates whether to retransmit a specific sequence or all (if == L2C_FCR_RETX_ALL_PKTS) */
+    list_t *list_ack = NULL;
+    const list_node_t *node_ack = NULL;
+    if (! fixed_queue_is_empty(p_ccb->fcrb.waiting_for_ack_q)) {
+        list_ack = fixed_queue_get_list(p_ccb->fcrb.waiting_for_ack_q);
+        node_ack = list_begin(list_ack);
+    }
+    if (tx_seq != L2C_FCR_RETX_ALL_PKTS)
+    {
+        /* If sending only one, the sequence number tells us which one. Look for it.
+        */
+        if (list_ack != NULL) {
+            for ( ; node_ack != list_end(list_ack); node_ack = list_next(node_ack)) {
+                p_buf = (BT_HDR *)list_node(node_ack);
+                /* Get the old control word */
+                p = ((UINT8 *) (p_buf+1)) + p_buf->offset + L2CAP_PKT_OVERHEAD;
+
+                STREAM_TO_UINT16 (ctrl_word, p);
+
+                buf_seq = (ctrl_word & L2CAP_FCR_TX_SEQ_BITS) >> L2CAP_FCR_TX_SEQ_BITS_SHIFT;
+
+                L2CAP_TRACE_DEBUG ("retransmit_i_frames()   cur seq: %u  looking for: %u", buf_seq, tx_seq);
+
+                if (tx_seq == buf_seq)
+                    break;
+            }
+        }
+
+        if (!p_buf)
+        {
+            L2CAP_TRACE_ERROR ("retransmit_i_frames() UNKNOWN seq: %u  q_count: %u",
+                               tx_seq,
+                               fixed_queue_length(p_ccb->fcrb.waiting_for_ack_q));
+            return (TRUE);
+        }
+    }
+    else
+    {
+        // Iterate though list and flush the amount requested from
+        // the transmit data queue that satisfy the layer and event conditions.
+        for (list_node_t *node_tmp = list_begin(p_ccb->p_lcb->link_xmit_data_q);
+            node_tmp != list_end(p_ccb->p_lcb->link_xmit_data_q);) {
+          BT_HDR *p_tmp = (BT_HDR *)list_node(node_tmp);
+          node_tmp = list_next(node_tmp);
+
+            /* Do not flush other CIDs or partial segments */
+          if ((p_tmp->layer_specific == 0) && (p_tmp->event == p_ccb->local_cid)) {
+            list_remove(p_ccb->p_lcb->link_xmit_data_q, p_tmp);
+            osi_free(p_tmp);
+          }
+        }
+
+        /* Also flush our retransmission queue */
+        while (!fixed_queue_is_empty(p_ccb->fcrb.retrans_q))
+            osi_free(fixed_queue_try_dequeue(p_ccb->fcrb.retrans_q));
+
+        if (list_ack != NULL)
+            node_ack = list_begin(list_ack);
+    }
+
+    if (list_ack != NULL) {
+        while (node_ack != list_end(list_ack))
+        {
+            p_buf = (BT_HDR *)list_node(node_ack);
+            node_ack = list_next(node_ack);
+
+            BT_HDR *p_buf2 = l2c_fcr_clone_buf(p_buf, p_buf->offset, p_buf->len);
+            if (p_buf2)
+            {
+                p_buf2->layer_specific = p_buf->layer_specific;
+
+                fixed_queue_enqueue(p_ccb->fcrb.retrans_q, p_buf2);
+            }
+
+            if ( (tx_seq != L2C_FCR_RETX_ALL_PKTS) || (p_buf2 == NULL) )
+                break;
+        }
+    }
+
+    l2c_link_check_send_pkts (p_ccb->p_lcb, NULL, NULL);
+
+    if (fixed_queue_length(p_ccb->fcrb.waiting_for_ack_q))
+    {
+        p_ccb->fcrb.num_tries++;
+        l2c_fcr_start_timer (p_ccb);
+    }
+
+    return (TRUE);
+}
+
+
+/*******************************************************************************
+**
+** Function         l2c_fcr_get_next_xmit_sdu_seg
+**
+** Description      Get the next SDU segment to transmit.
+**
+** Returns          pointer to buffer with segment or NULL
+**
+*******************************************************************************/
+BT_HDR *l2c_fcr_get_next_xmit_sdu_seg (tL2C_CCB *p_ccb, UINT16 max_packet_length)
+{
+    assert(p_ccb != NULL);
+
+    BOOLEAN     first_seg    = FALSE,       /* The segment is the first part of data  */
+                mid_seg      = FALSE,       /* The segment is the middle part of data */
+                last_seg     = FALSE;       /* The segment is the last part of data   */
+    UINT16      sdu_len = 0;
+    BT_HDR      *p_buf, *p_xmit;
+    UINT8       *p;
+    UINT16      max_pdu = p_ccb->tx_mps /* Needed? - L2CAP_MAX_HEADER_FCS*/;
+
+    /* If there is anything in the retransmit queue, that goes first
+    */
+    p_buf = (BT_HDR *)fixed_queue_try_dequeue(p_ccb->fcrb.retrans_q);
+    if (p_buf != NULL)
+    {
+        /* Update Rx Seq and FCS if we acked some packets while this one was queued */
+        prepare_I_frame (p_ccb, p_buf, TRUE);
+
+        p_buf->event = p_ccb->local_cid;
+
+#if (L2CAP_ERTM_STATS == TRUE)
+        p_ccb->fcrb.pkts_retransmitted++;
+        p_ccb->fcrb.ertm_pkt_counts[0]++;
+        p_ccb->fcrb.ertm_byte_counts[0] += (p_buf->len - 8);
+#endif
+        return (p_buf);
+    }
+
+    /* For BD/EDR controller, max_packet_length is set to 0             */
+    /* For AMP controller, max_packet_length is set by available blocks */
+    if ( (max_packet_length > L2CAP_MAX_HEADER_FCS)
+      && (max_pdu + L2CAP_MAX_HEADER_FCS > max_packet_length) )
+    {
+        max_pdu = max_packet_length - L2CAP_MAX_HEADER_FCS;
+    }
+
+    p_buf = (BT_HDR *)fixed_queue_try_peek_first(p_ccb->xmit_hold_q);
+
+    /* If there is more data than the MPS, it requires segmentation */
+    if (p_buf->len > max_pdu)
+    {
+        /* We are using the "event" field to tell is if we already started segmentation */
+        if (p_buf->event == 0)
+        {
+            first_seg = TRUE;
+            sdu_len   = p_buf->len;
+        }
+        else
+            mid_seg = TRUE;
+
+        /* Get a new buffer and copy the data that can be sent in a PDU */
+        p_xmit = l2c_fcr_clone_buf(p_buf, L2CAP_MIN_OFFSET + L2CAP_SDU_LEN_OFFSET,
+                                   max_pdu);
+
+        if (p_xmit != NULL)
+        {
+            p_buf->event  = p_ccb->local_cid;
+            p_xmit->event = p_ccb->local_cid;
+
+            p_buf->len    -= max_pdu;
+            p_buf->offset += max_pdu;
+
+            /* copy PBF setting */
+            p_xmit->layer_specific = p_buf->layer_specific;
+        }
+        else /* Should never happen if the application has configured buffers correctly */
+        {
+            L2CAP_TRACE_ERROR ("L2CAP - cannot get buffer for segmentation, max_pdu: %u", max_pdu);
+            return (NULL);
+        }
+    }
+    else    /* Use the original buffer if no segmentation, or the last segment */
+    {
+        p_xmit = (BT_HDR *)fixed_queue_try_dequeue(p_ccb->xmit_hold_q);
+
+        if (p_xmit->event != 0)
+            last_seg = TRUE;
+
+        p_xmit->event = p_ccb->local_cid;
+    }
+
+    /* Step back to add the L2CAP headers */
+    p_xmit->offset -= (L2CAP_PKT_OVERHEAD + L2CAP_FCR_OVERHEAD);
+    p_xmit->len    += L2CAP_PKT_OVERHEAD + L2CAP_FCR_OVERHEAD;
+
+    if (first_seg)
+    {
+        p_xmit->offset -= L2CAP_SDU_LEN_OVERHEAD;
+        p_xmit->len    += L2CAP_SDU_LEN_OVERHEAD;
+    }
+
+    /* Set the pointer to the beginning of the data */
+    p = (UINT8 *)(p_xmit + 1) + p_xmit->offset;
+
+    /* Now the L2CAP header */
+
+    /* Note: if FCS has to be included then the length is recalculated later */
+    UINT16_TO_STREAM (p, p_xmit->len - L2CAP_PKT_OVERHEAD);
+
+    UINT16_TO_STREAM (p, p_ccb->remote_cid);
+
+    if (first_seg)
+    {
+        /* Skip control word and add SDU length */
+        p += 2;
+        UINT16_TO_STREAM (p, sdu_len);
+
+        /* We will store the SAR type in layer-specific */
+        /* layer_specific is shared with flushable flag(bits 0-1), don't clear it */
+        p_xmit->layer_specific |= L2CAP_FCR_START_SDU;
+
+        first_seg = FALSE;
+    }
+    else if (mid_seg)
+        p_xmit->layer_specific |= L2CAP_FCR_CONT_SDU;
+    else if (last_seg)
+        p_xmit->layer_specific |= L2CAP_FCR_END_SDU;
+    else
+        p_xmit->layer_specific |= L2CAP_FCR_UNSEG_SDU;
+
+    prepare_I_frame (p_ccb, p_xmit, FALSE);
+
+    if (p_ccb->peer_cfg.fcr.mode == L2CAP_FCR_ERTM_MODE)
+    {
+        BT_HDR *p_wack = l2c_fcr_clone_buf(p_xmit, HCI_DATA_PREAMBLE_SIZE, p_xmit->len);
+
+        if (!p_wack)
+        {
+            L2CAP_TRACE_ERROR("L2CAP - no buffer for xmit cloning, CID: 0x%04x  Length: %u",
+                              p_ccb->local_cid, p_xmit->len);
+
+            /* We will not save the FCS in case we reconfigure and change options */
+            if (p_ccb->bypass_fcs != L2CAP_BYPASS_FCS)
+                p_xmit->len -= L2CAP_FCS_LEN;
+
+            /* Pretend we sent it and it got lost */
+            fixed_queue_enqueue(p_ccb->fcrb.waiting_for_ack_q, p_xmit);
+            return (NULL);
+        }
+        else
+        {
+#if (L2CAP_ERTM_STATS == TRUE)
+            /* set timestamp at the end of tx I-frame to get acking delay */
+            /*
+             * NOTE: Here we assume the allocate buffer is large enough
+             * to include extra 4 octets at the end.
+             */
+            p = ((UINT8 *) (p_wack+1)) + p_wack->offset + p_wack->len;
+            UINT32_TO_STREAM (p, time_get_os_boottime_ms());
+#endif
+            /* We will not save the FCS in case we reconfigure and change options */
+            if (p_ccb->bypass_fcs != L2CAP_BYPASS_FCS)
+                p_wack->len -= L2CAP_FCS_LEN;
+
+            p_wack->layer_specific = p_xmit->layer_specific;
+            fixed_queue_enqueue(p_ccb->fcrb.waiting_for_ack_q, p_wack);
+        }
+
+#if (L2CAP_ERTM_STATS == TRUE)
+        p_ccb->fcrb.ertm_pkt_counts[0]++;
+        p_ccb->fcrb.ertm_byte_counts[0] += (p_xmit->len - 8);
+#endif
+
+    }
+
+    return (p_xmit);
+}
+
+/*******************************************************************************
+**
+** Function         l2c_lcc_get_next_xmit_sdu_seg
+**
+** Description      Get the next SDU segment to transmit for LE connection oriented channel
+**
+** Returns          pointer to buffer with segment or NULL
+**
+*******************************************************************************/
+BT_HDR *l2c_lcc_get_next_xmit_sdu_seg (tL2C_CCB *p_ccb, UINT16 max_packet_length)
+{
+    BOOLEAN     first_seg    = FALSE;       /* The segment is the first part of data  */
+    BOOLEAN     last_seg     = FALSE;       /* The segment is the last part of data  */
+    UINT16      no_of_bytes_to_send = 0;
+    UINT16      sdu_len = 0;
+    BT_HDR      *p_buf, *p_xmit;
+    UINT8       *p;
+    UINT16      max_pdu = p_ccb->peer_conn_cfg.mps;
+
+    p_buf = (BT_HDR *)fixed_queue_try_peek_first(p_ccb->xmit_hold_q);
+
+    /* We are using the "event" field to tell is if we already started segmentation */
+    if (p_buf->event == 0)
+    {
+        first_seg = TRUE;
+        sdu_len   = p_buf->len;
+        if (p_buf->len <= (max_pdu - L2CAP_LCC_SDU_LENGTH))
+        {
+            last_seg = TRUE;
+            no_of_bytes_to_send = p_buf->len;
+        }
+        else
+            no_of_bytes_to_send = max_pdu - L2CAP_LCC_SDU_LENGTH;
+    }
+    else if (p_buf->len <= max_pdu)
+    {
+        last_seg = TRUE;
+        no_of_bytes_to_send = p_buf->len;
+    }
+    else
+    {
+        /* Middle Packet */
+        no_of_bytes_to_send = max_pdu;
+    }
+
+    /* Get a new buffer and copy the data that can be sent in a PDU */
+    if (first_seg == TRUE)
+        p_xmit = l2c_fcr_clone_buf (p_buf, L2CAP_LCC_OFFSET,
+                    no_of_bytes_to_send);
+    else
+        p_xmit = l2c_fcr_clone_buf (p_buf, L2CAP_MIN_OFFSET,
+                   no_of_bytes_to_send);
+
+    if (p_xmit != NULL)
+    {
+        p_buf->event  = p_ccb->local_cid;
+        p_xmit->event = p_ccb->local_cid;
+
+        if (first_seg == TRUE)
+        {
+            p_xmit->offset -= L2CAP_LCC_SDU_LENGTH;  /* for writing the SDU length. */
+            p = (UINT8 *)(p_xmit + 1) + p_xmit->offset;
+            UINT16_TO_STREAM(p, sdu_len);
+            p_xmit->len += L2CAP_LCC_SDU_LENGTH;
+        }
+
+        p_buf->len    -= no_of_bytes_to_send;
+        p_buf->offset += no_of_bytes_to_send;
+
+        /* copy PBF setting */
+        p_xmit->layer_specific = p_buf->layer_specific;
+
+    }
+    else /* Should never happen if the application has configured buffers correctly */
+    {
+        L2CAP_TRACE_ERROR ("L2CAP - cannot get buffer, for segmentation");
+        return (NULL);
+    }
+
+    if (last_seg == TRUE)
+    {
+        p_buf = (BT_HDR *)fixed_queue_try_dequeue(p_ccb->xmit_hold_q);
+        osi_free(p_buf);
+    }
+
+    /* Step back to add the L2CAP headers */
+    p_xmit->offset -= L2CAP_PKT_OVERHEAD;
+    p_xmit->len    += L2CAP_PKT_OVERHEAD ;
+
+    /* Set the pointer to the beginning of the data */
+    p = (UINT8 *)(p_xmit + 1) + p_xmit->offset;
+
+    /* Note: if FCS has to be included then the length is recalculated later */
+    UINT16_TO_STREAM (p, p_xmit->len - L2CAP_PKT_OVERHEAD);
+    UINT16_TO_STREAM (p, p_ccb->remote_cid);
+    return (p_xmit);
+
+}
+
+/*******************************************************************************
+** Configuration negotiation functions
+**
+** The following functions are used in negotiating channel modes during
+** configuration
+********************************************************************************/
+
+/*******************************************************************************
+**
+** Function         l2c_fcr_chk_chan_modes
+**
+** Description      Validates and adjusts if necessary, the FCR options
+**                  based on remote EXT features.
+**
+**                  Note: This assumes peer EXT Features have been received.
+**                      Basic mode is used if FCR Options have not been received
+**
+** Returns          UINT8 - nonzero if can continue, '0' if no compatible channels
+**
+*******************************************************************************/
+UINT8 l2c_fcr_chk_chan_modes (tL2C_CCB *p_ccb)
+{
+    assert(p_ccb != NULL);
+
+    /* Remove nonbasic options that the peer does not support */
+    if (!(p_ccb->p_lcb->peer_ext_fea & L2CAP_EXTFEA_ENH_RETRANS))
+        p_ccb->ertm_info.allowed_modes &= ~L2CAP_FCR_CHAN_OPT_ERTM;
+
+    if (!(p_ccb->p_lcb->peer_ext_fea & L2CAP_EXTFEA_STREAM_MODE))
+        p_ccb->ertm_info.allowed_modes &= ~L2CAP_FCR_CHAN_OPT_STREAM;
+
+    /* At least one type needs to be set (Basic, ERTM, STM) to continue */
+    if (!p_ccb->ertm_info.allowed_modes)
+    {
+        L2CAP_TRACE_WARNING ("L2CAP - Peer does not support our desired channel types");
+    }
+
+    return (p_ccb->ertm_info.allowed_modes);
+}
+
+/*******************************************************************************
+**
+** Function         l2c_fcr_adj_our_req_options
+**
+** Description      Validates and sets up the FCR options passed in from
+**                  L2CA_ConfigReq based on remote device's features.
+**
+** Returns          TRUE if no errors, Otherwise FALSE
+**
+*******************************************************************************/
+BOOLEAN l2c_fcr_adj_our_req_options (tL2C_CCB *p_ccb, tL2CAP_CFG_INFO *p_cfg)
+{
+    assert(p_ccb != NULL);
+    assert(p_cfg != NULL);
+
+    tL2CAP_FCR_OPTS *p_fcr = &p_cfg->fcr;
+
+    if (p_fcr->mode != p_ccb->ertm_info.preferred_mode)
+    {
+        L2CAP_TRACE_WARNING ("l2c_fcr_adj_our_req_options - preferred_mode (%d), does not match mode (%d)",
+                            p_ccb->ertm_info.preferred_mode, p_fcr->mode);
+
+        /* The preferred mode is passed in through tL2CAP_ERTM_INFO, so override this one */
+        p_fcr->mode = p_ccb->ertm_info.preferred_mode;
+    }
+
+    /* If upper layer did not request eRTM mode, BASIC must be used */
+    if (p_ccb->ertm_info.allowed_modes == L2CAP_FCR_CHAN_OPT_BASIC)
+    {
+        if (p_cfg->fcr_present && p_fcr->mode != L2CAP_FCR_BASIC_MODE)
+        {
+            L2CAP_TRACE_WARNING ("l2c_fcr_adj_our_req_options (mode %d): ERROR: No FCR options set using BASIC mode", p_fcr->mode);
+        }
+        p_fcr->mode = L2CAP_FCR_BASIC_MODE;
+    }
+
+    /* Process the FCR options if initial channel bring-up (not a reconfig request)
+    ** Determine initial channel mode to try based on our options and remote's features
+    */
+    if (p_cfg->fcr_present && !(p_ccb->config_done & RECONFIG_FLAG))
+    {
+        /* We need to have at least one mode type common with the peer */
+        if (!l2c_fcr_chk_chan_modes(p_ccb))
+        {
+            /* Two channels have incompatible supported types */
+            l2cu_disconnect_chnl (p_ccb);
+            return (FALSE);
+        }
+
+        /* Basic is the only common channel mode between the two devices */
+        else if (p_ccb->ertm_info.allowed_modes == L2CAP_FCR_CHAN_OPT_BASIC)
+        {
+            /* We only want to try Basic, so bypass sending the FCR options entirely */
+            p_cfg->fcr_present = FALSE;
+            p_cfg->fcs_present = FALSE;             /* Illegal to use FCS option in basic mode */
+            p_cfg->ext_flow_spec_present = FALSE;   /* Illegal to use extended flow spec in basic mode */
+        }
+
+        /* We have at least one non-basic mode available
+         * Override mode from available mode options based on preference, if needed
+         */
+        else
+        {
+            /* If peer does not support STREAMING, try ERTM */
+            if (p_fcr->mode == L2CAP_FCR_STREAM_MODE && !(p_ccb->ertm_info.allowed_modes & L2CAP_FCR_CHAN_OPT_STREAM))
+            {
+                L2CAP_TRACE_DEBUG ("L2C CFG: mode is STREAM, but peer does not support; Try ERTM");
+                p_fcr->mode = L2CAP_FCR_ERTM_MODE;
+            }
+
+            /* If peer does not support ERTM, try BASIC (will support this if made it here in the code) */
+            if (p_fcr->mode == L2CAP_FCR_ERTM_MODE && !(p_ccb->ertm_info.allowed_modes & L2CAP_FCR_CHAN_OPT_ERTM))
+            {
+                L2CAP_TRACE_DEBUG ("L2C CFG: mode is ERTM, but peer does not support; Try BASIC");
+                p_fcr->mode = L2CAP_FCR_BASIC_MODE;
+            }
+        }
+
+        if (p_fcr->mode != L2CAP_FCR_BASIC_MODE)
+        {
+            /* MTU must be smaller than buffer size */
+            if ( (p_cfg->mtu_present) && (p_cfg->mtu > p_ccb->max_rx_mtu) )
+            {
+                L2CAP_TRACE_WARNING ("L2CAP - MTU: %u  larger than buf size: %u", p_cfg->mtu, p_ccb->max_rx_mtu);
+                return (FALSE);
+            }
+
+            /* application want to use the default MPS */
+            if (p_fcr->mps == L2CAP_DEFAULT_ERM_MPS)
+            {
+                p_fcr->mps = L2CAP_MPS_OVER_BR_EDR;
+            }
+            /* MPS must be less than MTU */
+            else if (p_fcr->mps > p_ccb->max_rx_mtu)
+            {
+                L2CAP_TRACE_WARNING ("L2CAP - MPS  %u  invalid  MTU: %u", p_fcr->mps, p_ccb->max_rx_mtu);
+                return (FALSE);
+            }
+
+            /* We always initially read into the HCI buffer pool, so make sure it fits */
+            if (p_fcr->mps > (L2CAP_MTU_SIZE - L2CAP_MAX_HEADER_FCS))
+                p_fcr->mps = L2CAP_MTU_SIZE - L2CAP_MAX_HEADER_FCS;
+        }
+        else
+        {
+            p_cfg->fcs_present = FALSE;             /* Illegal to use FCS option in basic mode */
+            p_cfg->ext_flow_spec_present = FALSE;   /* Illegal to use extended flow spec in basic mode */
+        }
+
+        p_ccb->our_cfg.fcr = *p_fcr;
+    }
+    else    /* Not sure how to send a reconfiguration(??) should fcr be included? */
+    {
+        p_ccb->our_cfg.fcr_present = FALSE;
+    }
+
+    return (TRUE);
+}
+
+
+/*******************************************************************************
+**
+** Function         l2c_fcr_adj_monitor_retran_timeout
+**
+** Description      Overrides monitor/retrans timer value based on controller
+**
+** Returns          None
+**
+*******************************************************************************/
+void l2c_fcr_adj_monitor_retran_timeout (tL2C_CCB *p_ccb)
+{
+    assert(p_ccb != NULL);
+
+    /* adjust our monitor/retran timeout */
+    if (p_ccb->out_cfg_fcr_present)
+    {
+        /*
+        ** if we requestd ERTM or accepted ERTM
+        ** We may accept ERTM even if we didn't request ERTM, in case of requesting STREAM
+        */
+        if ((p_ccb->our_cfg.fcr.mode == L2CAP_FCR_ERTM_MODE)
+          ||(p_ccb->peer_cfg.fcr.mode == L2CAP_FCR_ERTM_MODE))
+        {
+            /* upper layer setting is ignored */
+            p_ccb->our_cfg.fcr.mon_tout    = L2CAP_MIN_MONITOR_TOUT;
+            p_ccb->our_cfg.fcr.rtrans_tout = L2CAP_MIN_RETRANS_TOUT;
+        }
+        else
+        {
+            p_ccb->our_cfg.fcr.mon_tout    = 0;
+            p_ccb->our_cfg.fcr.rtrans_tout = 0;
+        }
+
+        L2CAP_TRACE_DEBUG ("l2c_fcr_adj_monitor_retran_timeout: mon_tout:%d, rtrans_tout:%d",
+                             p_ccb->our_cfg.fcr.mon_tout, p_ccb->our_cfg.fcr.rtrans_tout);
+    }
+}
+/*******************************************************************************
+**
+** Function         l2c_fcr_adj_our_rsp_options
+**
+** Description      Overrides any neccesary FCR options passed in from
+**                  L2CA_ConfigRsp based on our FCR options.
+**                  Only makes adjustments if channel is in ERTM mode.
+**
+** Returns          None
+**
+*******************************************************************************/
+void l2c_fcr_adj_our_rsp_options (tL2C_CCB *p_ccb, tL2CAP_CFG_INFO *p_cfg)
+{
+    assert(p_ccb != NULL);
+    assert(p_cfg != NULL);
+
+    /* adjust our monitor/retran timeout */
+    l2c_fcr_adj_monitor_retran_timeout(p_ccb);
+
+    p_cfg->fcr_present = p_ccb->out_cfg_fcr_present;
+
+    if (p_cfg->fcr_present)
+    {
+        /* Temporary - until a better algorithm is implemented */
+        /* If peer's tx_wnd_sz requires too many buffers for us to support, then adjust it. For now, respond with our own tx_wnd_sz. */
+        /* Note: peer is not guaranteed to obey our adjustment */
+        if (p_ccb->peer_cfg.fcr.tx_win_sz > p_ccb->our_cfg.fcr.tx_win_sz)
+        {
+            L2CAP_TRACE_DEBUG ("%s: adjusting requested tx_win_sz from %i to %i", __FUNCTION__, p_ccb->peer_cfg.fcr.tx_win_sz, p_ccb->our_cfg.fcr.tx_win_sz);
+            p_ccb->peer_cfg.fcr.tx_win_sz = p_ccb->our_cfg.fcr.tx_win_sz;
+        }
+
+        p_cfg->fcr.mode         = p_ccb->peer_cfg.fcr.mode;
+        p_cfg->fcr.tx_win_sz    = p_ccb->peer_cfg.fcr.tx_win_sz;
+        p_cfg->fcr.max_transmit = p_ccb->peer_cfg.fcr.max_transmit;
+        p_cfg->fcr.mps          = p_ccb->peer_cfg.fcr.mps;
+        p_cfg->fcr.rtrans_tout  = p_ccb->our_cfg.fcr.rtrans_tout;
+        p_cfg->fcr.mon_tout     = p_ccb->our_cfg.fcr.mon_tout;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         l2c_fcr_renegotiate_chan
+**
+** Description      Called upon unsuccessful peer response to config request.
+**                  If the error is because of the channel mode, it will try
+**                  to resend using another supported optional channel.
+**
+** Returns          TRUE if resent configuration, False if channel matches or
+**                  cannot match.
+**
+*******************************************************************************/
+BOOLEAN l2c_fcr_renegotiate_chan(tL2C_CCB *p_ccb, tL2CAP_CFG_INFO *p_cfg)
+{
+    assert(p_ccb != NULL);
+    assert(p_cfg != NULL);
+
+    UINT8   peer_mode = p_ccb->our_cfg.fcr.mode;
+    BOOLEAN can_renegotiate;
+
+    /* Skip if this is a reconfiguration from OPEN STATE or if FCR is not returned */
+    if (!p_cfg->fcr_present || (p_ccb->config_done & RECONFIG_FLAG))
+        return (FALSE);
+
+    /* Only retry if there are more channel options to try */
+    if (p_cfg->result == L2CAP_CFG_UNACCEPTABLE_PARAMS)
+    {
+        peer_mode = (p_cfg->fcr_present) ? p_cfg->fcr.mode : L2CAP_FCR_BASIC_MODE;
+
+        if (p_ccb->our_cfg.fcr.mode != peer_mode)
+        {
+
+            if ((--p_ccb->fcr_cfg_tries) == 0)
+            {
+                p_cfg->result = L2CAP_CFG_FAILED_NO_REASON;
+                L2CAP_TRACE_WARNING ("l2c_fcr_renegotiate_chan (Max retries exceeded)");
+            }
+
+            can_renegotiate = FALSE;
+
+            /* Try another supported mode if available based on our last attempted channel */
+            switch (p_ccb->our_cfg.fcr.mode)
+            {
+                /* Our Streaming mode request was unnacceptable; try ERTM or Basic */
+            case L2CAP_FCR_STREAM_MODE:
+                /* Peer wants ERTM and we support it */
+                if ( (peer_mode == L2CAP_FCR_ERTM_MODE) && (p_ccb->ertm_info.allowed_modes & L2CAP_FCR_CHAN_OPT_ERTM) )
+                {
+                    L2CAP_TRACE_DEBUG ("l2c_fcr_renegotiate_chan(Trying ERTM)");
+                    p_ccb->our_cfg.fcr.mode = L2CAP_FCR_ERTM_MODE;
+                    can_renegotiate = TRUE;
+                }
+                else    /* Falls through */
+
+            case L2CAP_FCR_ERTM_MODE:
+                {
+                    /* We can try basic for any other peer mode if we support it */
+                    if (p_ccb->ertm_info.allowed_modes & L2CAP_FCR_CHAN_OPT_BASIC)
+                    {
+                        L2CAP_TRACE_DEBUG ("l2c_fcr_renegotiate_chan(Trying Basic)");
+                        can_renegotiate = TRUE;
+                        p_ccb->our_cfg.fcr.mode = L2CAP_FCR_BASIC_MODE;
+                    }
+                }
+                break;
+
+            default:
+                /* All other scenarios cannot be renegotiated */
+                break;
+            }
+
+            if (can_renegotiate)
+            {
+                p_ccb->our_cfg.fcr_present = TRUE;
+
+                if (p_ccb->our_cfg.fcr.mode == L2CAP_FCR_BASIC_MODE)
+                {
+                    p_ccb->our_cfg.fcs_present = FALSE;
+                    p_ccb->our_cfg.ext_flow_spec_present = FALSE;
+
+                    /* Basic Mode uses ACL Data Pool, make sure the MTU fits */
+                    if ( (p_cfg->mtu_present) && (p_cfg->mtu > L2CAP_MTU_SIZE) )
+                    {
+                        L2CAP_TRACE_WARNING ("L2CAP - adjust MTU: %u too large", p_cfg->mtu);
+                        p_cfg->mtu = L2CAP_MTU_SIZE;
+                    }
+                }
+
+                l2cu_process_our_cfg_req (p_ccb, &p_ccb->our_cfg);
+                l2cu_send_peer_config_req (p_ccb, &p_ccb->our_cfg);
+                alarm_set_on_queue(p_ccb->l2c_ccb_timer,
+                                   L2CAP_CHNL_CFG_TIMEOUT_MS,
+                                   l2c_ccb_timer_timeout, p_ccb,
+                                   btu_general_alarm_queue);
+                return (TRUE);
+            }
+        }
+    }
+
+    /* Disconnect if the channels do not match */
+    if (p_ccb->our_cfg.fcr.mode != peer_mode)
+    {
+        L2CAP_TRACE_WARNING ("L2C CFG:  Channels incompatible (local %d, peer %d)",
+                              p_ccb->our_cfg.fcr.mode, peer_mode);
+        l2cu_disconnect_chnl (p_ccb);
+    }
+
+    return (FALSE);
+}
+
+
+/*******************************************************************************
+**
+** Function         l2c_fcr_process_peer_cfg_req
+**
+** Description      This function is called to process the FCR options passed
+**                  in the peer's configuration request.
+**
+** Returns          UINT8 - L2CAP_PEER_CFG_OK, L2CAP_PEER_CFG_UNACCEPTABLE,
+**                          or L2CAP_PEER_CFG_DISCONNECT.
+**
+*******************************************************************************/
+UINT8 l2c_fcr_process_peer_cfg_req(tL2C_CCB *p_ccb, tL2CAP_CFG_INFO *p_cfg)
+{
+    assert(p_ccb != NULL);
+    assert(p_cfg != NULL);
+
+    UINT16 max_retrans_size;
+    UINT8  fcr_ok = L2CAP_PEER_CFG_OK;
+
+    p_ccb->p_lcb->w4_info_rsp = FALSE;      /* Handles T61x SonyEricsson Bug in Info Request */
+
+    L2CAP_TRACE_EVENT ("l2c_fcr_process_peer_cfg_req() CFG fcr_present:%d fcr.mode:%d CCB FCR mode:%d preferred: %u allowed:%u",
+                        p_cfg->fcr_present, p_cfg->fcr.mode, p_ccb->our_cfg.fcr.mode, p_ccb->ertm_info.preferred_mode,
+                        p_ccb->ertm_info.allowed_modes);
+
+    /* If Peer wants basic, we are done (accept it or disconnect) */
+    if (p_cfg->fcr.mode == L2CAP_FCR_BASIC_MODE)
+    {
+        /* If we do not allow basic, disconnect */
+        if ( !(p_ccb->ertm_info.allowed_modes & L2CAP_FCR_CHAN_OPT_BASIC) )
+            fcr_ok = L2CAP_PEER_CFG_DISCONNECT;
+    }
+
+    /* Need to negotiate if our modes are not the same */
+    else if (p_cfg->fcr.mode != p_ccb->ertm_info.preferred_mode)
+    {
+        /* If peer wants a mode that we don't support then retry our mode (ex. rtx/flc), OR
+        ** If we want ERTM and they wanted streaming retry our mode.
+        ** Note: If we have already determined they support our mode previously
+        **       from their EXF mask.
+        */
+        if ( (((1 << p_cfg->fcr.mode) & L2CAP_FCR_CHAN_OPT_ALL_MASK) == 0)
+            || (p_ccb->ertm_info.preferred_mode == L2CAP_FCR_ERTM_MODE) )
+        {
+            p_cfg->fcr.mode = p_ccb->our_cfg.fcr.mode;
+            p_cfg->fcr.tx_win_sz = p_ccb->our_cfg.fcr.tx_win_sz;
+            p_cfg->fcr.max_transmit = p_ccb->our_cfg.fcr.max_transmit;
+            fcr_ok = L2CAP_PEER_CFG_UNACCEPTABLE;
+        }
+
+        /* If we wanted basic, then try to renegotiate it */
+        else if (p_ccb->ertm_info.preferred_mode == L2CAP_FCR_BASIC_MODE)
+        {
+            p_cfg->fcr.mode = L2CAP_FCR_BASIC_MODE;
+            p_cfg->fcr.max_transmit = p_cfg->fcr.tx_win_sz = 0;
+            p_cfg->fcr.rtrans_tout = p_cfg->fcr.mon_tout = p_cfg->fcr.mps = 0;
+            p_ccb->our_cfg.fcr.rtrans_tout = p_ccb->our_cfg.fcr.mon_tout = p_ccb->our_cfg.fcr.mps = 0;
+            fcr_ok = L2CAP_PEER_CFG_UNACCEPTABLE;
+        }
+
+        /* Only other valid case is if they want ERTM and we wanted STM which should be
+           accepted if we support it; otherwise the channel should be disconnected */
+        else if ( (p_cfg->fcr.mode != L2CAP_FCR_ERTM_MODE)
+              || !(p_ccb->ertm_info.allowed_modes & L2CAP_FCR_CHAN_OPT_ERTM) )
+        {
+            fcr_ok = L2CAP_PEER_CFG_DISCONNECT;
+        }
+    }
+
+    /* Configuration for FCR channels so make any adjustments and fwd to upper layer */
+    if (fcr_ok == L2CAP_PEER_CFG_OK)
+    {
+        /* by default don't need to send params in the response */
+        p_ccb->out_cfg_fcr_present = FALSE;
+
+        /* Make any needed adjustments for the response to the peer */
+        if (p_cfg->fcr_present && p_cfg->fcr.mode != L2CAP_FCR_BASIC_MODE)
+        {
+            /* Peer desires to bypass FCS check, and streaming or ERTM mode */
+            if (p_cfg->fcs_present)
+            {
+                p_ccb->peer_cfg.fcs = p_cfg->fcs;
+                p_ccb->peer_cfg_bits |= L2CAP_CH_CFG_MASK_FCS;
+                if( p_cfg->fcs == L2CAP_CFG_FCS_BYPASS)
+                    p_ccb->bypass_fcs |= L2CAP_CFG_FCS_PEER;
+            }
+
+            max_retrans_size = p_ccb->ertm_info.fcr_tx_buf_size - sizeof(BT_HDR)
+                                            - L2CAP_MIN_OFFSET - L2CAP_SDU_LEN_OFFSET - L2CAP_FCS_LEN;
+
+            /* Ensure the MPS is not bigger than the MTU */
+            if ( (p_cfg->fcr.mps == 0) || (p_cfg->fcr.mps > p_ccb->peer_cfg.mtu) )
+            {
+                p_cfg->fcr.mps = p_ccb->peer_cfg.mtu;
+                p_ccb->out_cfg_fcr_present = TRUE;
+            }
+
+            /* Ensure the MPS is not bigger than our retransmission buffer */
+            if (p_cfg->fcr.mps > max_retrans_size)
+            {
+                L2CAP_TRACE_DEBUG("CFG: Overriding MPS to %d (orig %d)", max_retrans_size, p_cfg->fcr.mps);
+
+                p_cfg->fcr.mps = max_retrans_size;
+                p_ccb->out_cfg_fcr_present = TRUE;
+            }
+
+            if (p_cfg->fcr.mode == L2CAP_FCR_ERTM_MODE || p_cfg->fcr.mode == L2CAP_FCR_STREAM_MODE)
+            {
+                /* Always respond with FCR ERTM parameters */
+                p_ccb->out_cfg_fcr_present = TRUE;
+            }
+        }
+
+        /* Everything ok, so save the peer's adjusted fcr options */
+        p_ccb->peer_cfg.fcr = p_cfg->fcr;
+
+        if (p_cfg->fcr_present)
+            p_ccb->peer_cfg_bits |= L2CAP_CH_CFG_MASK_FCR;
+    }
+    else if (fcr_ok == L2CAP_PEER_CFG_UNACCEPTABLE)
+    {
+        /* Allow peer only one retry for mode */
+        if (p_ccb->peer_cfg_already_rejected)
+            fcr_ok = L2CAP_PEER_CFG_DISCONNECT;
+        else
+            p_ccb->peer_cfg_already_rejected = TRUE;
+    }
+
+    return (fcr_ok);
+}
+
+#if (L2CAP_ERTM_STATS == TRUE)
+/*******************************************************************************
+**
+** Function         l2c_fcr_collect_ack_delay
+**
+** Description      collect throughput, delay, queue size of waiting ack
+**
+** Parameters
+**                  tL2C_CCB
+**
+** Returns          void
+**
+*******************************************************************************/
+static void l2c_fcr_collect_ack_delay (tL2C_CCB *p_ccb, UINT8 num_bufs_acked)
+{
+    UINT32  index;
+    BT_HDR *p_buf;
+    UINT8  *p;
+    UINT32  timestamp, delay;
+    UINT8   xx;
+    UINT8   str[120];
+
+    index = p_ccb->fcrb.ack_delay_avg_index;
+
+    /* update sum, max and min of waiting for ack queue size */
+    p_ccb->fcrb.ack_q_count_avg[index] +=
+        fixed_queue_length(p_ccb->fcrb.waiting_for_ack_q);
+
+    if (fixed_queue_length(p_ccb->fcrb.waiting_for_ack_q) > p_ccb->fcrb.ack_q_count_max[index])
+        p_ccb->fcrb.ack_q_count_max[index] = fixed_queue_length(p_ccb->fcrb.waiting_for_ack_q);
+
+    if (fixed_queue_length(p_ccb->fcrb.waiting_for_ack_q) < p_ccb->fcrb.ack_q_count_min[index])
+        p_ccb->fcrb.ack_q_count_min[index] = fixed_queue_length(p_ccb->fcrb.waiting_for_ack_q);
+
+    /* update sum, max and min of round trip delay of acking */
+    list_t *list = NULL;
+    if (! fixed_queue_is_empty(p_ccb->fcrb.waiting_for_ack_q))
+        list = fixed_queue_get_list(p_ccb->fcrb.waiting_for_ack_q);
+    if (list != NULL) {
+        for (const list_node_t *node = list_begin(list), xx = 0;
+             (node != list_end(list)) && (xx < num_bufs_acked);
+             node = list_next(node), xx++) {
+            p_buf = list_node(node);
+            /* adding up length of acked I-frames to get throughput */
+            p_ccb->fcrb.throughput[index] += p_buf->len - 8;
+
+            if ( xx == num_bufs_acked - 1 )
+            {
+                /* get timestamp from tx I-frame that receiver is acking */
+                p = ((UINT8 *) (p_buf+1)) + p_buf->offset + p_buf->len;
+                if (p_ccb->bypass_fcs != L2CAP_BYPASS_FCS)
+                {
+                    p += L2CAP_FCS_LEN;
+                }
+
+                STREAM_TO_UINT32(timestamp, p);
+                delay = time_get_os_boottime_ms() - timestamp;
+
+                p_ccb->fcrb.ack_delay_avg[index] += delay;
+                if ( delay > p_ccb->fcrb.ack_delay_max[index] )
+                    p_ccb->fcrb.ack_delay_max[index] = delay;
+                if ( delay < p_ccb->fcrb.ack_delay_min[index] )
+                    p_ccb->fcrb.ack_delay_min[index] = delay;
+            }
+        }
+    }
+
+    p_ccb->fcrb.ack_delay_avg_count++;
+
+    /* calculate average and initialize next avg, min and max */
+    if (p_ccb->fcrb.ack_delay_avg_count > L2CAP_ERTM_STATS_AVG_NUM_SAMPLES)
+    {
+        p_ccb->fcrb.ack_delay_avg_count = 0;
+
+        p_ccb->fcrb.ack_q_count_avg[index] /= L2CAP_ERTM_STATS_AVG_NUM_SAMPLES;
+        p_ccb->fcrb.ack_delay_avg[index] /= L2CAP_ERTM_STATS_AVG_NUM_SAMPLES;
+
+        /* calculate throughput */
+        timestamp = time_get_os_boottime_ms();
+        if (timestamp - p_ccb->fcrb.throughput_start > 0)
+            p_ccb->fcrb.throughput[index] /= (timestamp - p_ccb->fcrb.throughput_start);
+
+        p_ccb->fcrb.throughput_start = timestamp;
+
+        sprintf(str, "[%02u] throughput: %5u, ack_delay avg:%3u, min:%3u, max:%3u, ack_q_count avg:%3u, min:%3u, max:%3u",
+                index, p_ccb->fcrb.throughput[index],
+                p_ccb->fcrb.ack_delay_avg[index], p_ccb->fcrb.ack_delay_min[index], p_ccb->fcrb.ack_delay_max[index],
+                p_ccb->fcrb.ack_q_count_avg[index], p_ccb->fcrb.ack_q_count_min[index], p_ccb->fcrb.ack_q_count_max[index] );
+
+        BT_TRACE(TRACE_CTRL_GENERAL | TRACE_LAYER_GKI | TRACE_ORG_GKI , TRACE_TYPE_GENERIC, "%s", str);
+
+        index = (index + 1) % L2CAP_ERTM_STATS_NUM_AVG;
+        p_ccb->fcrb.ack_delay_avg_index = index;
+
+        p_ccb->fcrb.ack_q_count_max[index] = 0;
+        p_ccb->fcrb.ack_q_count_min[index] = 0xFFFFFFFF;
+        p_ccb->fcrb.ack_q_count_avg[index] = 0;
+
+
+        p_ccb->fcrb.ack_delay_max[index] = 0;
+        p_ccb->fcrb.ack_delay_min[index] = 0xFFFFFFFF;
+        p_ccb->fcrb.ack_delay_avg[index] = 0;
+
+        p_ccb->fcrb.throughput[index] = 0;
+    }
+}
+#endif
diff --git a/rtkbt/code/bt/stack/l2cap/l2c_int.h b/rtkbt/code/bt/stack/l2cap/l2c_int.h
new file mode 100755
index 0000000..54e1f03
--- /dev/null
+++ b/rtkbt/code/bt/stack/l2cap/l2c_int.h
@@ -0,0 +1,796 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains L2CAP internal definitions
+ *
+ ******************************************************************************/
+#ifndef L2C_INT_H
+#define L2C_INT_H
+
+#include <stdbool.h>
+
+#include "osi/include/alarm.h"
+#include "osi/include/fixed_queue.h"
+#include "osi/include/list.h"
+#include "btm_api.h"
+#include "bt_common.h"
+#include "l2c_api.h"
+#include "l2cdefs.h"
+
+#define L2CAP_MIN_MTU   48      /* Minimum acceptable MTU is 48 bytes */
+
+/* LE credit based L2CAP connection parameters */
+#define L2CAP_LE_MIN_MTU            23
+#define L2CAP_LE_MIN_MPS            23
+#define L2CAP_LE_MAX_MPS            65533
+#define L2CAP_LE_MIN_CREDIT         0
+#define L2CAP_LE_MAX_CREDIT         65535
+#define L2CAP_LE_DEFAULT_MTU        512
+#define L2CAP_LE_DEFAULT_MPS        23
+#define L2CAP_LE_DEFAULT_CREDIT     1
+
+/*
+ * Timeout values (in milliseconds).
+ */
+#define L2CAP_LINK_ROLE_SWITCH_TIMEOUT_MS  (10 * 1000)  /* 10 seconds */
+#define L2CAP_LINK_CONNECT_TIMEOUT_MS      (60 * 1000)  /* 30 seconds */
+#define L2CAP_LINK_CONNECT_EXT_TIMEOUT_MS (120 * 1000)  /* 120 seconds */
+#define L2CAP_ECHO_RSP_TIMEOUT_MS          (30 * 1000)  /* 30 seconds */
+#define L2CAP_LINK_FLOW_CONTROL_TIMEOUT_MS  (2 * 1000)  /* 2 seconds */
+#define L2CAP_LINK_DISCONNECT_TIMEOUT_MS   (30 * 1000)  /* 30 seconds */
+#define L2CAP_CHNL_CONNECT_TIMEOUT_MS      (60 * 1000)  /* 60 seconds */
+#define L2CAP_CHNL_CONNECT_EXT_TIMEOUT_MS (120 * 1000)  /* 120 seconds */
+#define L2CAP_CHNL_CFG_TIMEOUT_MS          (30 * 1000)  /* 30 seconds */
+#define L2CAP_CHNL_DISCONNECT_TIMEOUT_MS   (10 * 1000)  /* 10 seconds */
+#define L2CAP_DELAY_CHECK_SM4_TIMEOUT_MS    (2 * 1000)  /* 2 seconds */
+#define L2CAP_WAIT_INFO_RSP_TIMEOUT_MS      (3 * 1000)  /* 3 seconds */
+#define L2CAP_BLE_LINK_CONNECT_TIMEOUT_MS  (30 * 1000)  /* 30 seconds */
+#define L2CAP_FCR_ACK_TIMEOUT_MS                  200   /* 200 milliseconds */
+
+/* Define the possible L2CAP channel states. The names of
+** the states may seem a bit strange, but they are taken from
+** the Bluetooth specification.
+*/
+typedef enum
+{
+    CST_CLOSED,                           /* Channel is in closed state           */
+    CST_ORIG_W4_SEC_COMP,                 /* Originator waits security clearence  */
+    CST_TERM_W4_SEC_COMP,                 /* Acceptor waits security clearence    */
+    CST_W4_L2CAP_CONNECT_RSP,             /* Waiting for peer conenct response    */
+    CST_W4_L2CA_CONNECT_RSP,              /* Waiting for upper layer connect rsp  */
+    CST_CONFIG,                           /* Negotiating configuration            */
+    CST_OPEN,                             /* Data transfer state                  */
+    CST_W4_L2CAP_DISCONNECT_RSP,          /* Waiting for peer disconnect rsp      */
+    CST_W4_L2CA_DISCONNECT_RSP            /* Waiting for upper layer disc rsp     */
+} tL2C_CHNL_STATE;
+
+/* Define the possible L2CAP link states
+*/
+typedef enum
+{
+    LST_DISCONNECTED,
+    LST_CONNECT_HOLDING,
+    LST_CONNECTING_WAIT_SWITCH,
+    LST_CONNECTING,
+    LST_CONNECTED,
+    LST_DISCONNECTING
+} tL2C_LINK_STATE;
+
+
+
+/* Define input events to the L2CAP link and channel state machines. The names
+** of the events may seem a bit strange, but they are taken from
+** the Bluetooth specification.
+*/
+#define L2CEVT_LP_CONNECT_CFM          0          /* Lower layer connect confirm          */
+#define L2CEVT_LP_CONNECT_CFM_NEG      1          /* Lower layer connect confirm (failed) */
+#define L2CEVT_LP_CONNECT_IND          2          /* Lower layer connect indication       */
+#define L2CEVT_LP_DISCONNECT_IND       3          /* Lower layer disconnect indication    */
+#define L2CEVT_LP_QOS_CFM              4          /* Lower layer QOS confirmation         */
+#define L2CEVT_LP_QOS_CFM_NEG          5          /* Lower layer QOS confirmation (failed)*/
+#define L2CEVT_LP_QOS_VIOLATION_IND    6          /* Lower layer QOS violation indication */
+
+#define L2CEVT_SEC_COMP                7          /* Security cleared successfully        */
+#define L2CEVT_SEC_COMP_NEG            8          /* Security procedure failed            */
+
+#define L2CEVT_L2CAP_CONNECT_REQ      10          /* Peer connection request              */
+#define L2CEVT_L2CAP_CONNECT_RSP      11          /* Peer connection response             */
+#define L2CEVT_L2CAP_CONNECT_RSP_PND  12          /* Peer connection response pending     */
+#define L2CEVT_L2CAP_CONNECT_RSP_NEG  13          /* Peer connection response (failed)    */
+#define L2CEVT_L2CAP_CONFIG_REQ       14          /* Peer configuration request           */
+#define L2CEVT_L2CAP_CONFIG_RSP       15          /* Peer configuration response          */
+#define L2CEVT_L2CAP_CONFIG_RSP_NEG   16          /* Peer configuration response (failed) */
+#define L2CEVT_L2CAP_DISCONNECT_REQ   17          /* Peer disconnect request              */
+#define L2CEVT_L2CAP_DISCONNECT_RSP   18          /* Peer disconnect response             */
+#define L2CEVT_L2CAP_INFO_RSP         19          /* Peer information response            */
+#define L2CEVT_L2CAP_DATA             20          /* Peer data                            */
+
+#define L2CEVT_L2CA_CONNECT_REQ       21          /* Upper layer connect request          */
+#define L2CEVT_L2CA_CONNECT_RSP       22          /* Upper layer connect response         */
+#define L2CEVT_L2CA_CONNECT_RSP_NEG   23          /* Upper layer connect response (failed)*/
+#define L2CEVT_L2CA_CONFIG_REQ        24          /* Upper layer config request           */
+#define L2CEVT_L2CA_CONFIG_RSP        25          /* Upper layer config response          */
+#define L2CEVT_L2CA_CONFIG_RSP_NEG    26          /* Upper layer config response (failed) */
+#define L2CEVT_L2CA_DISCONNECT_REQ    27          /* Upper layer disconnect request       */
+#define L2CEVT_L2CA_DISCONNECT_RSP    28          /* Upper layer disconnect response      */
+#define L2CEVT_L2CA_DATA_READ         29          /* Upper layer data read                */
+#define L2CEVT_L2CA_DATA_WRITE        30          /* Upper layer data write               */
+#define L2CEVT_L2CA_FLUSH_REQ         31          /* Upper layer flush                    */
+
+#define L2CEVT_TIMEOUT                32          /* Timeout                              */
+#define L2CEVT_SEC_RE_SEND_CMD        33          /* btm_sec has enough info to proceed   */
+
+#define L2CEVT_ACK_TIMEOUT            34          /* RR delay timeout                     */
+
+#define L2CEVT_L2CA_SEND_FLOW_CONTROL_CREDIT     35    /* Upper layer credit packet */
+#define L2CEVT_L2CAP_RECV_FLOW_CONTROL_CREDIT    36    /* Peer credit packet */
+
+/* Bitmask to skip over Broadcom feature reserved (ID) to avoid sending two
+   successive ID values, '0' id only or both */
+#define L2CAP_ADJ_BRCM_ID           0x1
+#define L2CAP_ADJ_ZERO_ID           0x2
+#define L2CAP_ADJ_ID                0x3
+
+/* Return values for l2cu_process_peer_cfg_req() */
+#define L2CAP_PEER_CFG_UNACCEPTABLE     0
+#define L2CAP_PEER_CFG_OK               1
+#define L2CAP_PEER_CFG_DISCONNECT       2
+
+/* eL2CAP option constants */
+#define L2CAP_MIN_RETRANS_TOUT          2000    /* Min retransmission timeout if no flush timeout or PBF */
+#define L2CAP_MIN_MONITOR_TOUT          12000   /* Min monitor timeout if no flush timeout or PBF */
+
+#define L2CAP_MAX_FCR_CFG_TRIES         2       /* Config attempts before disconnecting */
+
+typedef uint8_t tL2C_BLE_FIXED_CHNLS_MASK;
+
+typedef struct
+{
+    UINT8       next_tx_seq;                /* Next sequence number to be Tx'ed         */
+    UINT8       last_rx_ack;                /* Last sequence number ack'ed by the peer  */
+    UINT8       next_seq_expected;          /* Next peer sequence number expected       */
+    UINT8       last_ack_sent;              /* Last peer sequence number ack'ed         */
+    UINT8       num_tries;                  /* Number of retries to send a packet       */
+    UINT8       max_held_acks;              /* Max acks we can hold before sending      */
+
+    BOOLEAN     remote_busy;                /* TRUE if peer has flowed us off           */
+    BOOLEAN     local_busy;                 /* TRUE if we have flowed off the peer      */
+
+    BOOLEAN     rej_sent;                   /* Reject was sent                          */
+    BOOLEAN     srej_sent;                  /* Selective Reject was sent                */
+    BOOLEAN     wait_ack;                   /* Transmitter is waiting ack (poll sent)   */
+    BOOLEAN     rej_after_srej;             /* Send a REJ when SREJ clears              */
+
+    BOOLEAN     send_f_rsp;                 /* We need to send an F-bit response        */
+
+    UINT16      rx_sdu_len;                 /* Length of the SDU being received         */
+    BT_HDR      *p_rx_sdu;                  /* Buffer holding the SDU being received    */
+    fixed_queue_t *waiting_for_ack_q;       /* Buffers sent and waiting for peer to ack */
+    fixed_queue_t *srej_rcv_hold_q;         /* Buffers rcvd but held pending SREJ rsp   */
+    fixed_queue_t *retrans_q;               /* Buffers being retransmitted              */
+
+    alarm_t       *ack_timer;                /* Timer delaying RR                        */
+    alarm_t       *mon_retrans_timer;       /* Timer Monitor or Retransmission          */
+
+#if (L2CAP_ERTM_STATS == TRUE)
+    UINT32      connect_tick_count;         /* Time channel was established             */
+    UINT32      ertm_pkt_counts[2];         /* Packets sent and received                */
+    UINT32      ertm_byte_counts[2];        /* Bytes   sent and received                */
+    UINT32      s_frames_sent[4];           /* S-frames sent (RR, REJ, RNR, SREJ)       */
+    UINT32      s_frames_rcvd[4];           /* S-frames rcvd (RR, REJ, RNR, SREJ)       */
+    UINT32      xmit_window_closed;         /* # of times the xmit window was closed    */
+    UINT32      controller_idle;            /* # of times less than 2 packets in controller */
+                                            /* when the xmit window was closed          */
+    UINT32      pkts_retransmitted;         /* # of packets that were retransmitted     */
+    UINT32      retrans_touts;              /* # of retransmission timouts              */
+    UINT32      xmit_ack_touts;             /* # of xmit ack timouts                    */
+
+#define L2CAP_ERTM_STATS_NUM_AVG 10
+#define L2CAP_ERTM_STATS_AVG_NUM_SAMPLES 100
+    UINT32      ack_delay_avg_count;
+    UINT32      ack_delay_avg_index;
+    UINT32      throughput_start;
+    UINT32      throughput[L2CAP_ERTM_STATS_NUM_AVG];
+    UINT32      ack_delay_avg[L2CAP_ERTM_STATS_NUM_AVG];
+    UINT32      ack_delay_min[L2CAP_ERTM_STATS_NUM_AVG];
+    UINT32      ack_delay_max[L2CAP_ERTM_STATS_NUM_AVG];
+    UINT32      ack_q_count_avg[L2CAP_ERTM_STATS_NUM_AVG];
+    UINT32      ack_q_count_min[L2CAP_ERTM_STATS_NUM_AVG];
+    UINT32      ack_q_count_max[L2CAP_ERTM_STATS_NUM_AVG];
+#endif
+} tL2C_FCRB;
+
+
+/* Define a registration control block. Every application (e.g. RFCOMM, SDP,
+** TCS etc) that registers with L2CAP is assigned one of these.
+*/
+#if (L2CAP_UCD_INCLUDED == TRUE)
+#define L2C_UCD_RCB_ID              0x00
+#define L2C_UCD_STATE_UNUSED        0x00
+#define L2C_UCD_STATE_W4_DATA       0x01
+#define L2C_UCD_STATE_W4_RECEPTION  0x02
+#define L2C_UCD_STATE_W4_MTU        0x04
+
+typedef struct
+{
+    UINT8               state;
+    tL2CAP_UCD_CB_INFO  cb_info;
+} tL2C_UCD_REG;
+#endif
+
+typedef struct
+{
+    BOOLEAN                 in_use;
+    UINT16                  psm;
+    UINT16                  real_psm;               /* This may be a dummy RCB for an o/b connection but */
+                                                    /* this is the real PSM that we need to connect to   */
+#if (L2CAP_UCD_INCLUDED == TRUE)
+    tL2C_UCD_REG            ucd;
+#endif
+
+    tL2CAP_APPL_INFO        api;
+} tL2C_RCB;
+
+
+#ifndef L2CAP_CBB_DEFAULT_DATA_RATE_BUFF_QUOTA
+#define L2CAP_CBB_DEFAULT_DATA_RATE_BUFF_QUOTA 100
+#endif
+
+typedef void (tL2CAP_SEC_CBACK) (BD_ADDR bd_addr, tBT_TRANSPORT trasnport,
+                                void *p_ref_data, tBTM_STATUS result);
+
+typedef struct
+{
+    UINT16                  psm;
+    tBT_TRANSPORT           transport;
+    BOOLEAN                 is_originator;
+    tL2CAP_SEC_CBACK        *p_callback;
+    void                    *p_ref_data;
+}tL2CAP_SEC_DATA;
+
+/* Define a channel control block (CCB). There may be many channel control blocks
+** between the same two Bluetooth devices (i.e. on the same link).
+** Each CCB has unique local and remote CIDs. All channel control blocks on
+** the same physical link and are chained together.
+*/
+typedef struct t_l2c_ccb
+{
+    BOOLEAN             in_use;                 /* TRUE when in use, FALSE when not */
+    tL2C_CHNL_STATE     chnl_state;             /* Channel state                    */
+    tL2CAP_LE_CFG_INFO  local_conn_cfg;         /* Our config for ble conn oriented channel */
+    tL2CAP_LE_CFG_INFO  peer_conn_cfg;          /* Peer device config ble conn oriented channel */
+    BOOLEAN             is_first_seg;           /* Dtermine whether the received packet is the first segment or not */
+    BT_HDR*             ble_sdu;                /* Buffer for storing unassembled sdu*/
+    UINT16              ble_sdu_length;         /* Length of unassembled sdu length*/
+    struct t_l2c_ccb    *p_next_ccb;            /* Next CCB in the chain            */
+    struct t_l2c_ccb    *p_prev_ccb;            /* Previous CCB in the chain        */
+    struct t_l2c_linkcb *p_lcb;                 /* Link this CCB is assigned to     */
+
+    UINT16              local_cid;              /* Local CID                        */
+    UINT16              remote_cid;             /* Remote CID                       */
+
+    alarm_t             *l2c_ccb_timer;         /* CCB Timer Entry */
+
+    tL2C_RCB            *p_rcb;                 /* Registration CB for this Channel */
+    bool                should_free_rcb;        /* True if RCB was allocated on the heap */
+
+#define IB_CFG_DONE     0x01
+#define OB_CFG_DONE     0x02
+#define RECONFIG_FLAG   0x04                    /* True after initial configuration */
+#define CFG_DONE_MASK   (IB_CFG_DONE | OB_CFG_DONE)
+
+    UINT8               config_done;            /* Configuration flag word         */
+    UINT8               local_id;               /* Transaction ID for local trans  */
+    UINT8               remote_id;              /* Transaction ID for local  */
+
+#define CCB_FLAG_NO_RETRY       0x01            /* no more retry */
+#define CCB_FLAG_SENT_PENDING   0x02            /* already sent pending response */
+    UINT8               flags;
+
+    tL2CAP_CFG_INFO     our_cfg;                /* Our saved configuration options    */
+    tL2CAP_CH_CFG_BITS  peer_cfg_bits;          /* Store what peer wants to configure */
+    tL2CAP_CFG_INFO     peer_cfg;               /* Peer's saved configuration options */
+
+    fixed_queue_t       *xmit_hold_q;            /* Transmit data hold queue         */
+    BOOLEAN             cong_sent;              /* Set when congested status sent   */
+    UINT16              buff_quota;             /* Buffer quota before sending congestion   */
+
+    tL2CAP_CHNL_PRIORITY ccb_priority;          /* Channel priority                 */
+    tL2CAP_CHNL_DATA_RATE tx_data_rate;         /* Channel Tx data rate             */
+    tL2CAP_CHNL_DATA_RATE rx_data_rate;         /* Channel Rx data rate             */
+
+    /* Fields used for eL2CAP */
+    tL2CAP_ERTM_INFO    ertm_info;
+    tL2C_FCRB           fcrb;
+    UINT16              tx_mps;                 /* TX MPS adjusted based on current controller */
+    UINT16              max_rx_mtu;
+    UINT8               fcr_cfg_tries;          /* Max number of negotiation attempts */
+    BOOLEAN             peer_cfg_already_rejected; /* If mode rejected once, set to TRUE */
+    BOOLEAN             out_cfg_fcr_present;    /* TRUE if cfg response shoulkd include fcr options */
+
+#define L2CAP_CFG_FCS_OUR   0x01                /* Our desired config FCS option */
+#define L2CAP_CFG_FCS_PEER  0x02                /* Peer's desired config FCS option */
+#define L2CAP_BYPASS_FCS    (L2CAP_CFG_FCS_OUR | L2CAP_CFG_FCS_PEER)
+    UINT8               bypass_fcs;
+
+#if (L2CAP_NON_FLUSHABLE_PB_INCLUDED == TRUE)
+    BOOLEAN             is_flushable;                   /* TRUE if channel is flushable     */
+#endif
+
+#if (L2CAP_NUM_FIXED_CHNLS > 0) || (L2CAP_UCD_INCLUDED == TRUE)
+    UINT16              fixed_chnl_idle_tout;   /* Idle timeout to use for the fixed channel       */
+#endif
+    UINT16              tx_data_len;
+} tL2C_CCB;
+
+/***********************************************************************
+** Define a queue of linked CCBs.
+*/
+typedef struct
+{
+    tL2C_CCB        *p_first_ccb;               /* The first channel in this queue */
+    tL2C_CCB        *p_last_ccb;                /* The last  channel in this queue */
+} tL2C_CCB_Q;
+
+#if (L2CAP_ROUND_ROBIN_CHANNEL_SERVICE == TRUE)
+
+/* Round-Robin service for the same priority channels */
+#define L2CAP_NUM_CHNL_PRIORITY     3           /* Total number of priority group (high, medium, low)*/
+#define L2CAP_CHNL_PRIORITY_WEIGHT  5           /* weight per priority for burst transmission quota */
+#define L2CAP_GET_PRIORITY_QUOTA(pri) ((L2CAP_NUM_CHNL_PRIORITY - (pri)) * L2CAP_CHNL_PRIORITY_WEIGHT)
+
+/* CCBs within the same LCB are served in round robin with priority                       */
+/* It will make sure that low priority channel (for example, HF signaling on RFCOMM)      */
+/* can be sent to headset even if higher priority channel (for example, AV media channel) */
+/* is congested.                                                                          */
+
+typedef struct
+{
+    tL2C_CCB        *p_serve_ccb;               /* current serving ccb within priority group */
+    tL2C_CCB        *p_first_ccb;               /* first ccb of priority group */
+    UINT8           num_ccb;                    /* number of channels in priority group */
+    UINT8           quota;                      /* burst transmission quota */
+} tL2C_RR_SERV;
+
+#endif /* (L2CAP_ROUND_ROBIN_CHANNEL_SERVICE == TRUE) */
+
+/* Define a link control block. There is one link control block between
+** this device and any other device (i.e. BD ADDR).
+*/
+typedef struct t_l2c_linkcb
+{
+    BOOLEAN             in_use;                     /* TRUE when in use, FALSE when not */
+    tL2C_LINK_STATE     link_state;
+
+    alarm_t             *l2c_lcb_timer;             /* Timer entry for timeout evt */
+    UINT16              handle;                     /* The handle used with LM          */
+
+    tL2C_CCB_Q          ccb_queue;                  /* Queue of CCBs on this LCB        */
+
+    tL2C_CCB            *p_pending_ccb;             /* ccb of waiting channel during link disconnect */
+    alarm_t             *info_resp_timer;           /* Timer entry for info resp timeout evt */
+    BD_ADDR             remote_bd_addr;             /* The BD address of the remote     */
+
+    UINT8               link_role;                  /* Master or slave                  */
+    UINT8               id;
+    UINT8               cur_echo_id;                /* Current id value for echo request */
+    tL2CA_ECHO_RSP_CB   *p_echo_rsp_cb;             /* Echo response callback           */
+    UINT16              idle_timeout;               /* Idle timeout                     */
+    BOOLEAN             is_bonding;                 /* True - link active only for bonding */
+
+    UINT16              link_flush_tout;            /* Flush timeout used               */
+
+    UINT16              link_xmit_quota;            /* Num outstanding pkts allowed     */
+    UINT16              sent_not_acked;             /* Num packets sent but not acked   */
+
+    BOOLEAN             partial_segment_being_sent; /* Set TRUE when a partial segment  */
+                                                    /* is being sent.                   */
+    BOOLEAN             w4_info_rsp;                /* TRUE when info request is active */
+    UINT8               info_rx_bits;               /* set 1 if received info type */
+    UINT32              peer_ext_fea;               /* Peer's extended features mask    */
+    list_t              *link_xmit_data_q;          /* Link transmit data buffer queue  */
+
+    UINT8               peer_chnl_mask[L2CAP_FIXED_CHNL_ARRAY_SIZE];
+#if (L2CAP_UCD_INCLUDED == TRUE)
+    UINT16              ucd_mtu;                    /* peer MTU on UCD */
+    fixed_queue_t       *ucd_out_sec_pending_q;     /* Security pending outgoing UCD packet  */
+    fixed_queue_t       *ucd_in_sec_pending_q;       /* Security pending incoming UCD packet  */
+#endif
+
+    BT_HDR              *p_hcit_rcv_acl;            /* Current HCIT ACL buf being rcvd  */
+    UINT16              idle_timeout_sv;            /* Save current Idle timeout        */
+    UINT8               acl_priority;               /* L2C_PRIORITY_NORMAL or L2C_PRIORITY_HIGH */
+    tL2CA_NOCP_CB       *p_nocp_cb;                 /* Num Cmpl pkts callback           */
+
+#if (L2CAP_NUM_FIXED_CHNLS > 0)
+    tL2C_CCB            *p_fixed_ccbs[L2CAP_NUM_FIXED_CHNLS];
+    UINT16              disc_reason;
+#endif
+
+    tBT_TRANSPORT       transport;
+#if (BLE_INCLUDED == TRUE)
+    tBLE_ADDR_TYPE      ble_addr_type;
+    UINT16              tx_data_len;            /* tx data length used in data length extension */
+    fixed_queue_t       *le_sec_pending_q;      /* LE coc channels waiting for security check completion */
+    UINT8               sec_act;
+#define L2C_BLE_CONN_UPDATE_DISABLE 0x1  /* disable update connection parameters */
+#define L2C_BLE_NEW_CONN_PARAM      0x2  /* new connection parameter to be set */
+#define L2C_BLE_UPDATE_PENDING      0x4  /* waiting for connection update finished */
+#define L2C_BLE_NOT_DEFAULT_PARAM   0x8  /* not using default connection parameters */
+    UINT8               conn_update_mask;
+
+    UINT16              min_interval; /* parameters as requested by peripheral */
+    UINT16              max_interval;
+    UINT16              latency;
+    UINT16              timeout;
+
+#endif
+
+#if (L2CAP_ROUND_ROBIN_CHANNEL_SERVICE == TRUE)
+    /* each priority group is limited burst transmission  */
+    /* round robin service for the same priority channels */
+    tL2C_RR_SERV        rr_serv[L2CAP_NUM_CHNL_PRIORITY];
+    UINT8               rr_pri;                             /* current serving priority group */
+#endif
+
+} tL2C_LCB;
+
+/* Define the L2CAP control structure
+*/
+typedef struct
+{
+    UINT8           l2cap_trace_level;
+    UINT16          controller_xmit_window;         /* Total ACL window for all links   */
+
+    UINT16          round_robin_quota;              /* Round-robin link quota           */
+    UINT16          round_robin_unacked;            /* Round-robin unacked              */
+    BOOLEAN         check_round_robin;              /* Do a round robin check           */
+
+    BOOLEAN         is_cong_cback_context;
+
+    tL2C_LCB        lcb_pool[MAX_L2CAP_LINKS];      /* Link Control Block pool          */
+    tL2C_CCB        ccb_pool[MAX_L2CAP_CHANNELS];   /* Channel Control Block pool       */
+    tL2C_RCB        rcb_pool[MAX_L2CAP_CLIENTS];    /* Registration info pool           */
+
+    tL2C_CCB        *p_free_ccb_first;              /* Pointer to first free CCB        */
+    tL2C_CCB        *p_free_ccb_last;               /* Pointer to last  free CCB        */
+
+    UINT8           desire_role;                    /* desire to be master/slave when accepting a connection */
+    BOOLEAN         disallow_switch;                /* FALSE, to allow switch at create conn */
+    UINT16          num_lm_acl_bufs;                /* # of ACL buffers on controller   */
+    UINT16          idle_timeout;                   /* Idle timeout                     */
+
+    list_t          *rcv_pending_q;                 /* Recv pending queue               */
+    alarm_t         *receive_hold_timer;            /* Timer entry for rcv hold    */
+
+    tL2C_LCB        *p_cur_hcit_lcb;                /* Current HCI Transport buffer     */
+    UINT16          num_links_active;               /* Number of links active           */
+
+#if (L2CAP_NON_FLUSHABLE_PB_INCLUDED == TRUE)
+    UINT16          non_flushable_pbf;              /* L2CAP_PKT_START_NON_FLUSHABLE if controller supports */
+                                                    /* Otherwise, L2CAP_PKT_START */
+    BOOLEAN         is_flush_active;                /* TRUE if an HCI_Enhanced_Flush has been sent */
+#endif
+
+#if L2CAP_CONFORMANCE_TESTING == TRUE
+    UINT32          test_info_resp;                 /* Conformance testing needs a dynamic response */
+#endif
+
+#if (L2CAP_NUM_FIXED_CHNLS > 0)
+    tL2CAP_FIXED_CHNL_REG   fixed_reg[L2CAP_NUM_FIXED_CHNLS];   /* Reg info for fixed channels */
+#endif
+
+#if (BLE_INCLUDED == TRUE)
+    UINT16                   num_ble_links_active;               /* Number of LE links active           */
+    BOOLEAN                  is_ble_connecting;
+    BD_ADDR                  ble_connecting_bda;
+    UINT16                   controller_le_xmit_window;         /* Total ACL window for all links   */
+    tL2C_BLE_FIXED_CHNLS_MASK l2c_ble_fixed_chnls_mask;         // LE fixed channels mask
+    UINT16                   num_lm_ble_bufs;                   /* # of ACL buffers on controller   */
+    UINT16                   ble_round_robin_quota;              /* Round-robin link quota           */
+    UINT16                   ble_round_robin_unacked;            /* Round-robin unacked              */
+    BOOLEAN                  ble_check_round_robin;              /* Do a round robin check           */
+    tL2C_RCB                 ble_rcb_pool[BLE_MAX_L2CAP_CLIENTS]; /* Registration info pool           */
+#endif
+
+    tL2CA_ECHO_DATA_CB      *p_echo_data_cb;                /* Echo data callback */
+
+#if (defined(L2CAP_HIGH_PRI_CHAN_QUOTA_IS_CONFIGURABLE) && (L2CAP_HIGH_PRI_CHAN_QUOTA_IS_CONFIGURABLE == TRUE))
+    UINT16              high_pri_min_xmit_quota;    /* Minimum number of ACL credit for high priority link */
+#endif /* (L2CAP_HIGH_PRI_CHAN_QUOTA_IS_CONFIGURABLE == TRUE) */
+
+    UINT16          dyn_psm;
+} tL2C_CB;
+
+
+
+/* Define a structure that contains the information about a connection.
+** This structure is used to pass between functions, and not all the
+** fields will always be filled in.
+*/
+typedef struct
+{
+    BD_ADDR         bd_addr;                        /* Remote BD address        */
+    UINT8           status;                         /* Connection status        */
+    UINT16          psm;                            /* PSM of the connection    */
+    UINT16          l2cap_result;                   /* L2CAP result             */
+    UINT16          l2cap_status;                   /* L2CAP status             */
+    UINT16          remote_cid;                     /* Remote CID               */
+} tL2C_CONN_INFO;
+
+
+typedef void (tL2C_FCR_MGMT_EVT_HDLR) (UINT8, tL2C_CCB *);
+
+/* The offset in a buffer that L2CAP will use when building commands.
+*/
+#define L2CAP_SEND_CMD_OFFSET       0
+
+
+/* Number of ACL buffers to use for high priority channel
+*/
+#if (!defined(L2CAP_HIGH_PRI_CHAN_QUOTA_IS_CONFIGURABLE) || (L2CAP_HIGH_PRI_CHAN_QUOTA_IS_CONFIGURABLE == FALSE))
+#define L2CAP_HIGH_PRI_MIN_XMIT_QUOTA_A     (L2CAP_HIGH_PRI_MIN_XMIT_QUOTA)
+#else
+#define L2CAP_HIGH_PRI_MIN_XMIT_QUOTA_A     (l2cb.high_pri_min_xmit_quota)
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/* L2CAP global data
+************************************
+*/
+#if (!defined L2C_DYNAMIC_MEMORY) || (L2C_DYNAMIC_MEMORY == FALSE)
+extern tL2C_CB  l2cb;
+#else
+extern tL2C_CB *l2c_cb_ptr;
+#define l2cb (*l2c_cb_ptr)
+#endif
+
+
+/* Functions provided by l2c_main.c
+************************************
+*/
+void l2c_init(void);
+void l2c_free(void);
+
+extern void     l2c_receive_hold_timer_timeout(void *data);
+extern void     l2c_ccb_timer_timeout(void *data);
+extern void     l2c_lcb_timer_timeout(void *data);
+extern void     l2c_fcrb_ack_timer_timeout(void *data);
+extern UINT8    l2c_data_write (UINT16 cid, BT_HDR *p_data, UINT16 flag);
+extern void     l2c_rcv_acl_data (BT_HDR *p_msg);
+extern void     l2c_process_held_packets (BOOLEAN timed_out);
+
+/* Functions provided by l2c_utils.c
+************************************
+*/
+extern tL2C_LCB *l2cu_allocate_lcb (BD_ADDR p_bd_addr, BOOLEAN is_bonding, tBT_TRANSPORT transport);
+extern BOOLEAN  l2cu_start_post_bond_timer (UINT16 handle);
+extern void     l2cu_release_lcb (tL2C_LCB *p_lcb);
+extern tL2C_LCB *l2cu_find_lcb_by_bd_addr (BD_ADDR p_bd_addr, tBT_TRANSPORT transport);
+extern tL2C_LCB *l2cu_find_lcb_by_handle (UINT16 handle);
+extern void     l2cu_update_lcb_4_bonding (BD_ADDR p_bd_addr, BOOLEAN is_bonding);
+
+extern UINT8    l2cu_get_conn_role (tL2C_LCB *p_this_lcb);
+extern BOOLEAN  l2cu_set_acl_priority (BD_ADDR bd_addr, UINT8 priority, BOOLEAN reset_after_rs);
+
+extern void     l2cu_enqueue_ccb (tL2C_CCB *p_ccb);
+extern void     l2cu_dequeue_ccb (tL2C_CCB *p_ccb);
+extern void     l2cu_change_pri_ccb (tL2C_CCB *p_ccb, tL2CAP_CHNL_PRIORITY priority);
+
+extern tL2C_CCB *l2cu_allocate_ccb (tL2C_LCB *p_lcb, UINT16 cid);
+extern void     l2cu_release_ccb (tL2C_CCB *p_ccb);
+extern tL2C_CCB *l2cu_find_ccb_by_cid (tL2C_LCB *p_lcb, UINT16 local_cid);
+extern tL2C_CCB *l2cu_find_ccb_by_remote_cid (tL2C_LCB *p_lcb, UINT16 remote_cid);
+extern void     l2cu_adj_id (tL2C_LCB *p_lcb, UINT8 adj_mask);
+extern BOOLEAN  l2c_is_cmd_rejected (UINT8 cmd_code, UINT8 id, tL2C_LCB *p_lcb);
+
+extern void     l2cu_send_peer_cmd_reject (tL2C_LCB *p_lcb, UINT16 reason,
+                                           UINT8 rem_id,UINT16 p1, UINT16 p2);
+extern void     l2cu_send_peer_connect_req (tL2C_CCB *p_ccb);
+extern void     l2cu_send_peer_connect_rsp (tL2C_CCB *p_ccb, UINT16 result, UINT16 status);
+extern void     l2cu_send_peer_config_req (tL2C_CCB *p_ccb, tL2CAP_CFG_INFO *p_cfg);
+extern void     l2cu_send_peer_config_rsp (tL2C_CCB *p_ccb, tL2CAP_CFG_INFO *p_cfg);
+extern void     l2cu_send_peer_config_rej (tL2C_CCB *p_ccb, UINT8 *p_data, UINT16 data_len, UINT16 rej_len);
+extern void     l2cu_send_peer_disc_req (tL2C_CCB *p_ccb);
+extern void     l2cu_send_peer_disc_rsp (tL2C_LCB *p_lcb, UINT8 remote_id, UINT16 local_cid, UINT16 remote_cid);
+extern void     l2cu_send_peer_echo_req (tL2C_LCB *p_lcb, UINT8 *p_data, UINT16 data_len);
+extern void     l2cu_send_peer_echo_rsp (tL2C_LCB *p_lcb, UINT8 id, UINT8 *p_data, UINT16 data_len);
+extern void     l2cu_send_peer_info_rsp (tL2C_LCB *p_lcb, UINT8 id, UINT16 info_type);
+extern void     l2cu_reject_connection (tL2C_LCB *p_lcb, UINT16 remote_cid, UINT8 rem_id, UINT16 result);
+extern void     l2cu_send_peer_info_req (tL2C_LCB *p_lcb, UINT16 info_type);
+extern void     l2cu_set_acl_hci_header (BT_HDR *p_buf, tL2C_CCB *p_ccb);
+extern void     l2cu_check_channel_congestion (tL2C_CCB *p_ccb);
+extern void     l2cu_disconnect_chnl (tL2C_CCB *p_ccb);
+
+#if (L2CAP_NON_FLUSHABLE_PB_INCLUDED == TRUE)
+extern void     l2cu_set_non_flushable_pbf(BOOLEAN);
+#endif
+
+#if (BLE_INCLUDED == TRUE)
+extern void l2cu_send_peer_ble_par_req (tL2C_LCB *p_lcb, UINT16 min_int, UINT16 max_int, UINT16 latency, UINT16 timeout);
+extern void l2cu_send_peer_ble_par_rsp (tL2C_LCB *p_lcb, UINT16 reason, UINT8 rem_id);
+extern void l2cu_reject_ble_connection (tL2C_LCB *p_lcb, UINT8 rem_id, UINT16 result);
+extern void l2cu_send_peer_ble_credit_based_conn_res (tL2C_CCB *p_ccb, UINT16 result);
+extern void l2cu_send_peer_ble_credit_based_conn_req (tL2C_CCB *p_ccb);
+extern void l2cu_send_peer_ble_flow_control_credit(tL2C_CCB *p_ccb, UINT16 credit_value);
+extern void l2cu_send_peer_ble_credit_based_disconn_req(tL2C_CCB *p_ccb);
+#endif
+
+extern BOOLEAN l2cu_initialize_fixed_ccb (tL2C_LCB *p_lcb, UINT16 fixed_cid, tL2CAP_FCR_OPTS *p_fcr);
+extern void    l2cu_no_dynamic_ccbs (tL2C_LCB *p_lcb);
+extern void    l2cu_process_fixed_chnl_resp (tL2C_LCB *p_lcb);
+
+/* Functions provided by l2c_ucd.c
+************************************
+*/
+#if (L2CAP_UCD_INCLUDED == TRUE)
+void l2c_ucd_delete_sec_pending_q(tL2C_LCB  *p_lcb);
+void l2c_ucd_enqueue_pending_out_sec_q(tL2C_CCB  *p_ccb, void *p_data);
+BOOLEAN l2c_ucd_check_pending_info_req(tL2C_CCB  *p_ccb);
+BOOLEAN l2c_ucd_check_pending_out_sec_q(tL2C_CCB  *p_ccb);
+void l2c_ucd_send_pending_out_sec_q(tL2C_CCB  *p_ccb);
+void l2c_ucd_discard_pending_out_sec_q(tL2C_CCB  *p_ccb);
+BOOLEAN l2c_ucd_check_pending_in_sec_q(tL2C_CCB  *p_ccb);
+void l2c_ucd_send_pending_in_sec_q(tL2C_CCB  *p_ccb);
+void l2c_ucd_discard_pending_in_sec_q(tL2C_CCB  *p_ccb);
+BOOLEAN l2c_ucd_check_rx_pkts(tL2C_LCB  *p_lcb, BT_HDR *p_msg);
+BOOLEAN l2c_ucd_process_event(tL2C_CCB *p_ccb, UINT16 event, void *p_data);
+#endif
+
+/* Functions provided for Broadcom Aware
+****************************************
+*/
+extern BOOLEAN  l2cu_check_feature_req (tL2C_LCB *p_lcb, UINT8 id, UINT8 *p_data, UINT16 data_len);
+extern void     l2cu_check_feature_rsp (tL2C_LCB *p_lcb, UINT8 id, UINT8 *p_data, UINT16 data_len);
+extern void     l2cu_send_feature_req (tL2C_CCB *p_ccb);
+
+extern tL2C_RCB *l2cu_allocate_rcb (UINT16 psm);
+extern tL2C_RCB *l2cu_find_rcb_by_psm (UINT16 psm);
+extern void     l2cu_release_rcb (tL2C_RCB *p_rcb);
+extern tL2C_RCB *l2cu_allocate_ble_rcb (UINT16 psm);
+extern tL2C_RCB *l2cu_find_ble_rcb_by_psm (UINT16 psm);
+
+extern UINT8    l2cu_process_peer_cfg_req (tL2C_CCB *p_ccb, tL2CAP_CFG_INFO *p_cfg);
+extern void     l2cu_process_peer_cfg_rsp (tL2C_CCB *p_ccb, tL2CAP_CFG_INFO *p_cfg);
+extern void     l2cu_process_our_cfg_req (tL2C_CCB *p_ccb, tL2CAP_CFG_INFO *p_cfg);
+extern void     l2cu_process_our_cfg_rsp (tL2C_CCB *p_ccb, tL2CAP_CFG_INFO *p_cfg);
+
+extern void     l2cu_device_reset (void);
+extern tL2C_LCB *l2cu_find_lcb_by_state (tL2C_LINK_STATE state);
+extern BOOLEAN  l2cu_lcb_disconnecting (void);
+
+extern BOOLEAN l2cu_create_conn (tL2C_LCB *p_lcb, tBT_TRANSPORT transport);
+extern BOOLEAN l2cu_create_conn_after_switch (tL2C_LCB *p_lcb);
+extern BT_HDR *l2cu_get_next_buffer_to_send (tL2C_LCB *p_lcb);
+extern void    l2cu_resubmit_pending_sec_req (BD_ADDR p_bda);
+extern void    l2cu_initialize_amp_ccb (tL2C_LCB *p_lcb);
+extern void    l2cu_adjust_out_mps (tL2C_CCB *p_ccb);
+
+/* Functions provided by l2c_link.c
+************************************
+*/
+extern BOOLEAN  l2c_link_hci_conn_req (BD_ADDR bd_addr);
+extern BOOLEAN  l2c_link_hci_conn_comp (UINT8 status, UINT16 handle, BD_ADDR p_bda);
+extern BOOLEAN  l2c_link_hci_disc_comp (UINT16 handle, UINT8 reason);
+extern BOOLEAN  l2c_link_hci_qos_violation (UINT16 handle);
+extern void     l2c_link_timeout (tL2C_LCB *p_lcb);
+extern void     l2c_info_resp_timer_timeout(void *data);
+extern void     l2c_link_check_send_pkts (tL2C_LCB *p_lcb, tL2C_CCB *p_ccb, BT_HDR *p_buf);
+extern void     l2c_link_adjust_allocation (void);
+extern void     l2c_link_process_num_completed_pkts (UINT8 *p);
+extern void     l2c_link_process_num_completed_blocks (UINT8 controller_id, UINT8 *p, UINT16 evt_len);
+extern void     l2c_link_processs_num_bufs (UINT16 num_lm_acl_bufs);
+extern UINT8    l2c_link_pkts_rcvd (UINT16 *num_pkts, UINT16 *handles);
+extern void     l2c_link_role_changed (BD_ADDR bd_addr, UINT8 new_role, UINT8 hci_status);
+extern void     l2c_link_sec_comp (BD_ADDR p_bda, tBT_TRANSPORT trasnport, void *p_ref_data, UINT8 status);
+extern void     l2c_link_segments_xmitted (BT_HDR *p_msg);
+extern void     l2c_pin_code_request (BD_ADDR bd_addr);
+extern void     l2c_link_adjust_chnl_allocation (void);
+
+#if (BLE_INCLUDED == TRUE)
+extern void     l2c_link_processs_ble_num_bufs (UINT16 num_lm_acl_bufs);
+#endif
+
+#if L2CAP_WAKE_PARKED_LINK == TRUE
+extern BOOLEAN  l2c_link_check_power_mode ( tL2C_LCB *p_lcb );
+#define L2C_LINK_CHECK_POWER_MODE(x) l2c_link_check_power_mode ((x))
+#else  // L2CAP_WAKE_PARKED_LINK
+#define L2C_LINK_CHECK_POWER_MODE(x) (FALSE)
+#endif  // L2CAP_WAKE_PARKED_LINK
+
+#if L2CAP_CONFORMANCE_TESTING == TRUE
+/* Used only for conformance testing */
+extern void l2cu_set_info_rsp_mask (UINT32 mask);
+#endif
+
+/* Functions provided by l2c_csm.c
+************************************
+*/
+extern void l2c_csm_execute (tL2C_CCB *p_ccb, UINT16 event, void *p_data);
+
+extern void l2c_enqueue_peer_data (tL2C_CCB *p_ccb, BT_HDR *p_buf);
+
+
+/* Functions provided by l2c_fcr.c
+************************************
+*/
+extern void     l2c_fcr_cleanup (tL2C_CCB *p_ccb);
+extern void     l2c_fcr_proc_pdu (tL2C_CCB *p_ccb, BT_HDR *p_buf);
+extern void     l2c_fcr_proc_tout (tL2C_CCB *p_ccb);
+extern void     l2c_fcr_proc_ack_tout (tL2C_CCB *p_ccb);
+extern void     l2c_fcr_send_S_frame (tL2C_CCB *p_ccb, UINT16 function_code, UINT16 pf_bit);
+extern BT_HDR   *l2c_fcr_clone_buf(BT_HDR *p_buf, UINT16 new_offset, UINT16 no_of_bytes);
+extern BOOLEAN  l2c_fcr_is_flow_controlled (tL2C_CCB *p_ccb);
+extern BT_HDR   *l2c_fcr_get_next_xmit_sdu_seg (tL2C_CCB *p_ccb, UINT16 max_packet_length);
+extern void     l2c_fcr_start_timer (tL2C_CCB *p_ccb);
+extern void     l2c_lcc_proc_pdu (tL2C_CCB *p_ccb, BT_HDR *p_buf);
+extern BT_HDR   *l2c_lcc_get_next_xmit_sdu_seg (tL2C_CCB *p_ccb, UINT16 max_packet_length);
+
+/* Configuration negotiation */
+extern UINT8    l2c_fcr_chk_chan_modes (tL2C_CCB *p_ccb);
+extern BOOLEAN  l2c_fcr_adj_our_req_options (tL2C_CCB *p_ccb, tL2CAP_CFG_INFO *p_cfg);
+extern void     l2c_fcr_adj_our_rsp_options (tL2C_CCB *p_ccb, tL2CAP_CFG_INFO *p_peer_cfg);
+extern BOOLEAN  l2c_fcr_renegotiate_chan(tL2C_CCB *p_ccb, tL2CAP_CFG_INFO *p_cfg);
+extern UINT8    l2c_fcr_process_peer_cfg_req(tL2C_CCB *p_ccb, tL2CAP_CFG_INFO *p_cfg);
+extern void     l2c_fcr_adj_monitor_retran_timeout (tL2C_CCB *p_ccb);
+extern void     l2c_fcr_stop_timer (tL2C_CCB *p_ccb);
+
+/* Functions provided by l2c_ble.c
+************************************
+*/
+#if (BLE_INCLUDED == TRUE)
+extern BOOLEAN l2cble_create_conn (tL2C_LCB *p_lcb);
+extern void l2cble_process_sig_cmd (tL2C_LCB *p_lcb, UINT8 *p, UINT16 pkt_len);
+extern void l2cble_conn_comp (UINT16 handle, UINT8 role, BD_ADDR bda, tBLE_ADDR_TYPE type,
+                              UINT16 conn_interval, UINT16 conn_latency, UINT16 conn_timeout);
+extern BOOLEAN l2cble_init_direct_conn (tL2C_LCB *p_lcb);
+extern void l2cble_notify_le_connection (BD_ADDR bda);
+extern void l2c_ble_link_adjust_allocation (void);
+extern void l2cble_process_conn_update_evt (UINT16 handle, UINT8 status);
+
+extern void l2cble_credit_based_conn_req (tL2C_CCB *p_ccb);
+extern void l2cble_credit_based_conn_res (tL2C_CCB *p_ccb, UINT16 result);
+extern void l2cble_send_peer_disc_req(tL2C_CCB *p_ccb);
+extern void l2cble_send_flow_control_credit(tL2C_CCB *p_ccb, UINT16 credit_value);
+extern BOOLEAN l2ble_sec_access_req(BD_ADDR bd_addr, UINT16 psm, BOOLEAN is_originator, tL2CAP_SEC_CBACK *p_callback, void *p_ref_data);
+
+#if (defined BLE_LLT_INCLUDED) && (BLE_LLT_INCLUDED == TRUE)
+extern void l2cble_process_rc_param_request_evt(UINT16 handle, UINT16 int_min, UINT16 int_max,
+                                                        UINT16 latency, UINT16 timeout);
+#endif
+
+extern void l2cble_update_data_length(tL2C_LCB *p_lcb);
+extern void l2cble_set_fixed_channel_tx_data_length(BD_ADDR remote_bda, UINT16 fix_cid,
+                                                                UINT16 tx_mtu);
+extern void l2cble_process_data_length_change_event(UINT16 handle, UINT16 tx_data_len,
+                                                                UINT16 rx_data_len);
+
+#endif
+extern void l2cu_process_fixed_disc_cback (tL2C_LCB *p_lcb);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/rtkbt/code/bt/stack/l2cap/l2c_link.c b/rtkbt/code/bt/stack/l2cap/l2c_link.c
new file mode 100755
index 0000000..2fefd13
--- /dev/null
+++ b/rtkbt/code/bt/stack/l2cap/l2c_link.c
@@ -0,0 +1,1554 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  this file contains the functions relating to link management. A "link"
+ *  is a connection between this device and another device. Only ACL links
+ *  are managed.
+ *
+ ******************************************************************************/
+
+#include <assert.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+
+#include "device/include/controller.h"
+#include "bt_common.h"
+#include "bt_types.h"
+#include "bt_utils.h"
+#include "hcimsgs.h"
+#include "l2cdefs.h"
+#include "l2c_int.h"
+#include "l2c_api.h"
+#include "btu.h"
+#include "btm_api.h"
+#include "btm_int.h"
+#include "btcore/include/bdaddr.h"
+
+
+extern fixed_queue_t *btu_general_alarm_queue;
+
+static BOOLEAN l2c_link_send_to_lower (tL2C_LCB *p_lcb, BT_HDR *p_buf);
+
+/*******************************************************************************
+**
+** Function         l2c_link_hci_conn_req
+**
+** Description      This function is called when an HCI Connection Request
+**                  event is received.
+**
+** Returns          TRUE, if accept conn
+**
+*******************************************************************************/
+BOOLEAN l2c_link_hci_conn_req (BD_ADDR bd_addr)
+{
+    tL2C_LCB        *p_lcb;
+    tL2C_LCB        *p_lcb_cur;
+    int             xx;
+    BOOLEAN         no_links;
+
+    /* See if we have a link control block for the remote device */
+    p_lcb = l2cu_find_lcb_by_bd_addr (bd_addr, BT_TRANSPORT_BR_EDR);
+
+    /* If we don't have one, create one and accept the connection. */
+    if (!p_lcb)
+    {
+        p_lcb = l2cu_allocate_lcb (bd_addr, FALSE, BT_TRANSPORT_BR_EDR);
+        if (!p_lcb)
+        {
+            btsnd_hcic_reject_conn (bd_addr, HCI_ERR_HOST_REJECT_RESOURCES);
+            L2CAP_TRACE_ERROR ("L2CAP failed to allocate LCB");
+            return FALSE;
+        }
+
+        no_links = TRUE;
+
+        /* If we already have connection, accept as a master */
+        for (xx = 0, p_lcb_cur = &l2cb.lcb_pool[0]; xx < MAX_L2CAP_LINKS; xx++, p_lcb_cur++)
+        {
+            if (p_lcb_cur == p_lcb)
+                continue;
+
+            if (p_lcb_cur->in_use)
+            {
+                no_links = FALSE;
+                p_lcb->link_role = HCI_ROLE_MASTER;
+                break;
+            }
+        }
+
+        if (no_links)
+        {
+            if (!btm_dev_support_switch (bd_addr))
+                p_lcb->link_role = HCI_ROLE_SLAVE;
+            else
+                p_lcb->link_role = l2cu_get_conn_role(p_lcb);
+        }
+
+
+        /* Tell the other side we accept the connection */
+        btsnd_hcic_accept_conn (bd_addr, p_lcb->link_role);
+
+        p_lcb->link_state = LST_CONNECTING;
+
+        /* Start a timer waiting for connect complete */
+        alarm_set_on_queue(p_lcb->l2c_lcb_timer, L2CAP_LINK_CONNECT_TIMEOUT_MS,
+                           l2c_lcb_timer_timeout, p_lcb,
+                           btu_general_alarm_queue);
+        return (TRUE);
+    }
+
+    /* We already had a link control block to the guy. Check what state it is in */
+    if ((p_lcb->link_state == LST_CONNECTING) || (p_lcb->link_state == LST_CONNECT_HOLDING))
+    {
+        /* Connection collision. Accept the connection anyways. */
+
+        if (!btm_dev_support_switch (bd_addr))
+            p_lcb->link_role = HCI_ROLE_SLAVE;
+        else
+            p_lcb->link_role = l2cu_get_conn_role(p_lcb);
+
+        btsnd_hcic_accept_conn (bd_addr, p_lcb->link_role);
+
+        p_lcb->link_state = LST_CONNECTING;
+        return (TRUE);
+    }
+    else if (p_lcb->link_state == LST_DISCONNECTING)
+    {
+        /* In disconnecting state, reject the connection. */
+        btsnd_hcic_reject_conn (bd_addr, HCI_ERR_HOST_REJECT_DEVICE);
+    }
+    else
+    {
+        L2CAP_TRACE_ERROR("L2CAP got conn_req while connected (state:%d). Reject it",
+                p_lcb->link_state);
+        /* Reject the connection with ACL Connection Already exist reason */
+        btsnd_hcic_reject_conn (bd_addr, HCI_ERR_CONNECTION_EXISTS);
+    }
+    return (FALSE);
+}
+
+/*******************************************************************************
+**
+** Function         l2c_link_hci_conn_comp
+**
+** Description      This function is called when an HCI Connection Complete
+**                  event is received.
+**
+** Returns          void
+**
+*******************************************************************************/
+BOOLEAN l2c_link_hci_conn_comp (UINT8 status, UINT16 handle, BD_ADDR p_bda)
+{
+    tL2C_CONN_INFO       ci;
+    tL2C_LCB            *p_lcb;
+    tL2C_CCB            *p_ccb;
+    tBTM_SEC_DEV_REC    *p_dev_info = NULL;
+
+    btm_acl_update_busy_level (BTM_BLI_PAGE_DONE_EVT);
+
+    /* Save the parameters */
+    ci.status       = status;
+    memcpy (ci.bd_addr, p_bda, BD_ADDR_LEN);
+
+    /* See if we have a link control block for the remote device */
+    p_lcb = l2cu_find_lcb_by_bd_addr (ci.bd_addr, BT_TRANSPORT_BR_EDR);
+
+    /* If we don't have one, this is an error */
+    if (!p_lcb)
+    {
+        L2CAP_TRACE_WARNING ("L2CAP got conn_comp for unknown BD_ADDR");
+        return (FALSE);
+    }
+
+    if (p_lcb->link_state != LST_CONNECTING)
+    {
+        L2CAP_TRACE_ERROR ("L2CAP got conn_comp in bad state: %d  status: 0x%d", p_lcb->link_state, status);
+
+        if (status != HCI_SUCCESS)
+            l2c_link_hci_disc_comp (p_lcb->handle, status);
+
+        return (FALSE);
+    }
+
+    /* Save the handle */
+    p_lcb->handle = handle;
+
+    if (ci.status == HCI_SUCCESS)
+    {
+        /* Connected OK. Change state to connected */
+        p_lcb->link_state = LST_CONNECTED;
+
+        /* Get the peer information if the l2cap flow-control/rtrans is supported */
+        l2cu_send_peer_info_req (p_lcb, L2CAP_EXTENDED_FEATURES_INFO_TYPE);
+
+        /* Tell BTM Acl management about the link */
+        if ((p_dev_info = btm_find_dev (p_bda)) != NULL)
+            btm_acl_created (ci.bd_addr, p_dev_info->dev_class,
+                             p_dev_info->sec_bd_name, handle,
+                             p_lcb->link_role, BT_TRANSPORT_BR_EDR);
+        else
+            btm_acl_created (ci.bd_addr, NULL, NULL, handle, p_lcb->link_role, BT_TRANSPORT_BR_EDR);
+
+        BTM_SetLinkSuperTout (ci.bd_addr, btm_cb.btm_def_link_super_tout);
+
+        /* If dedicated bonding do not process any further */
+        if (p_lcb->is_bonding)
+        {
+            if (l2cu_start_post_bond_timer(handle))
+                return (TRUE);
+        }
+
+        /* Update the timeouts in the hold queue */
+        l2c_process_held_packets(FALSE);
+
+        alarm_cancel(p_lcb->l2c_lcb_timer);
+
+        /* For all channels, send the event through their FSMs */
+        for (p_ccb = p_lcb->ccb_queue.p_first_ccb; p_ccb; p_ccb = p_ccb->p_next_ccb)
+        {
+            l2c_csm_execute (p_ccb, L2CEVT_LP_CONNECT_CFM, &ci);
+        }
+
+        if (p_lcb->p_echo_rsp_cb)
+        {
+            l2cu_send_peer_echo_req (p_lcb, NULL, 0);
+            alarm_set_on_queue(p_lcb->l2c_lcb_timer,
+                               L2CAP_ECHO_RSP_TIMEOUT_MS,
+                               l2c_lcb_timer_timeout, p_lcb,
+                               btu_general_alarm_queue);
+        }
+        else if (!p_lcb->ccb_queue.p_first_ccb)
+        {
+            period_ms_t timeout_ms = L2CAP_LINK_STARTUP_TOUT * 1000;
+            alarm_set_on_queue(p_lcb->l2c_lcb_timer, timeout_ms,
+                               l2c_lcb_timer_timeout, p_lcb,
+                               btu_general_alarm_queue);
+        }
+    }
+    /* Max number of acl connections.                          */
+    /* If there's an lcb disconnecting set this one to holding */
+    else if ((ci.status == HCI_ERR_MAX_NUM_OF_CONNECTIONS) && l2cu_lcb_disconnecting())
+    {
+        p_lcb->link_state = LST_CONNECT_HOLDING;
+        p_lcb->handle = HCI_INVALID_HANDLE;
+    }
+    else
+    {
+        /* Just in case app decides to try again in the callback context */
+        p_lcb->link_state = LST_DISCONNECTING;
+
+        /* Connection failed. For all channels, send the event through */
+        /* their FSMs. The CCBs should remove themselves from the LCB  */
+        for (p_ccb = p_lcb->ccb_queue.p_first_ccb; p_ccb; )
+        {
+            tL2C_CCB *pn = p_ccb->p_next_ccb;
+
+            l2c_csm_execute (p_ccb, L2CEVT_LP_CONNECT_CFM_NEG, &ci);
+
+            p_ccb = pn;
+        }
+
+        p_lcb->disc_reason = status;
+        /* Release the LCB */
+        if (p_lcb->ccb_queue.p_first_ccb == NULL)
+            l2cu_release_lcb (p_lcb);
+        else                              /* there are any CCBs remaining */
+        {
+            if (ci.status == HCI_ERR_CONNECTION_EXISTS)
+            {
+                /* we are in collision situation, wait for connecttion request from controller */
+                p_lcb->link_state = LST_CONNECTING;
+            }
+            else
+            {
+                l2cu_create_conn(p_lcb, BT_TRANSPORT_BR_EDR);
+            }
+        }
+    }
+    return (TRUE);
+}
+
+
+/*******************************************************************************
+**
+** Function         l2c_link_sec_comp
+**
+** Description      This function is called when required security procedures
+**                  are completed.
+**
+** Returns          void
+**
+*******************************************************************************/
+void l2c_link_sec_comp (BD_ADDR p_bda, tBT_TRANSPORT transport, void *p_ref_data, UINT8 status)
+{
+    tL2C_CONN_INFO  ci;
+    tL2C_LCB        *p_lcb;
+    tL2C_CCB        *p_ccb;
+    tL2C_CCB        *p_next_ccb;
+    UINT8           event;
+
+    UNUSED(transport);
+
+    L2CAP_TRACE_DEBUG ("l2c_link_sec_comp: %d, 0x%x", status, p_ref_data);
+
+    if (status == BTM_SUCCESS_NO_SECURITY)
+        status = BTM_SUCCESS;
+
+    /* Save the parameters */
+    ci.status       = status;
+    memcpy (ci.bd_addr, p_bda, BD_ADDR_LEN);
+
+    p_lcb = l2cu_find_lcb_by_bd_addr (p_bda, transport);
+
+    /* If we don't have one, this is an error */
+    if (!p_lcb)
+    {
+        L2CAP_TRACE_WARNING ("L2CAP got sec_comp for unknown BD_ADDR");
+        return;
+    }
+
+    /* Match p_ccb with p_ref_data returned by sec manager */
+    for (p_ccb = p_lcb->ccb_queue.p_first_ccb; p_ccb; p_ccb = p_next_ccb)
+    {
+        p_next_ccb = p_ccb->p_next_ccb;
+
+        if (p_ccb == p_ref_data)
+        {
+            switch(status)
+            {
+            case BTM_SUCCESS:
+                event = L2CEVT_SEC_COMP;
+                break;
+
+            case BTM_DELAY_CHECK:
+                /* start a timer - encryption change not received before L2CAP connect req */
+                alarm_set_on_queue(p_ccb->l2c_ccb_timer,
+                                   L2CAP_DELAY_CHECK_SM4_TIMEOUT_MS,
+                                   l2c_ccb_timer_timeout, p_ccb,
+                                   btu_general_alarm_queue);
+                return;
+
+            default:
+                event = L2CEVT_SEC_COMP_NEG;
+            }
+            l2c_csm_execute (p_ccb, event, &ci);
+            break;
+        }
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         l2c_link_hci_disc_comp
+**
+** Description      This function is called when an HCI Disconnect Complete
+**                  event is received.
+**
+** Returns          TRUE if the link is known about, else FALSE
+**
+*******************************************************************************/
+BOOLEAN l2c_link_hci_disc_comp (UINT16 handle, UINT8 reason)
+{
+    tL2C_LCB    *p_lcb;
+    tL2C_CCB    *p_ccb;
+    BOOLEAN     status = TRUE;
+    BOOLEAN     lcb_is_free = TRUE;
+    tBT_TRANSPORT   transport = BT_TRANSPORT_BR_EDR;
+
+    /* See if we have a link control block for the connection */
+    p_lcb = l2cu_find_lcb_by_handle (handle);
+
+    /* If we don't have one, maybe an SCO link. Send to MM */
+    if (!p_lcb)
+    {
+        status = FALSE;
+    }
+    else
+    {
+        /* There can be a case when we rejected PIN code authentication */
+        /* otherwise save a new reason */
+        if (btm_cb.acl_disc_reason != HCI_ERR_HOST_REJECT_SECURITY)
+            btm_cb.acl_disc_reason = reason;
+
+        p_lcb->disc_reason = btm_cb.acl_disc_reason;
+
+        /* Just in case app decides to try again in the callback context */
+        p_lcb->link_state = LST_DISCONNECTING;
+
+#if (BLE_INCLUDED == TRUE)
+        /* Check for BLE and handle that differently */
+        if (p_lcb->transport == BT_TRANSPORT_LE)
+            btm_ble_update_link_topology_mask(p_lcb->link_role, FALSE);
+#endif
+        /* Link is disconnected. For all channels, send the event through */
+        /* their FSMs. The CCBs should remove themselves from the LCB     */
+        for (p_ccb = p_lcb->ccb_queue.p_first_ccb; p_ccb; )
+        {
+            tL2C_CCB *pn = p_ccb->p_next_ccb;
+
+            /* Keep connect pending control block (if exists)
+             * Possible Race condition when a reconnect occurs
+             * on the channel during a disconnect of link. This
+             * ccb will be automatically retried after link disconnect
+             * arrives
+             */
+            if (p_ccb != p_lcb->p_pending_ccb)
+            {
+                l2c_csm_execute (p_ccb, L2CEVT_LP_DISCONNECT_IND, &reason);
+            }
+            p_ccb = pn;
+        }
+
+#if (BTM_SCO_INCLUDED == TRUE)
+#if (BLE_INCLUDED == TRUE)
+        if (p_lcb->transport == BT_TRANSPORT_BR_EDR)
+#endif
+            /* Tell SCO management to drop any SCOs on this ACL */
+            btm_sco_acl_removed (p_lcb->remote_bd_addr);
+#endif
+
+        /* If waiting for disconnect and reconnect is pending start the reconnect now
+           race condition where layer above issued connect request on link that was
+           disconnecting
+         */
+        if (p_lcb->ccb_queue.p_first_ccb != NULL || p_lcb->p_pending_ccb)
+        {
+            L2CAP_TRACE_DEBUG("l2c_link_hci_disc_comp: Restarting pending ACL request");
+            transport = p_lcb->transport;
+#if BLE_INCLUDED == TRUE
+            /* for LE link, always drop and re-open to ensure to get LE remote feature */
+            if (p_lcb->transport == BT_TRANSPORT_LE)
+            {
+                l2cb.is_ble_connecting = FALSE;
+                btm_acl_removed (p_lcb->remote_bd_addr, p_lcb->transport);
+                /* Release any held buffers */
+                BT_HDR *p_buf;
+                while (!list_is_empty(p_lcb->link_xmit_data_q))
+                {
+                    p_buf = list_front(p_lcb->link_xmit_data_q);
+                    list_remove(p_lcb->link_xmit_data_q, p_buf);
+                    osi_free(p_buf);
+                }
+            }
+            else
+#endif
+       {
+#if (L2CAP_NUM_FIXED_CHNLS > 0)
+          /* If we are going to re-use the LCB without dropping it, release all fixed channels
+          here */
+          int xx;
+          for (xx = 0; xx < L2CAP_NUM_FIXED_CHNLS; xx++)
+          {
+              if (p_lcb->p_fixed_ccbs[xx] && p_lcb->p_fixed_ccbs[xx] != p_lcb->p_pending_ccb)
+              {
+#if BLE_INCLUDED == TRUE
+                  (*l2cb.fixed_reg[xx].pL2CA_FixedConn_Cb)(xx + L2CAP_FIRST_FIXED_CHNL,
+                          p_lcb->remote_bd_addr, FALSE, p_lcb->disc_reason, p_lcb->transport);
+#else
+                  (*l2cb.fixed_reg[xx].pL2CA_FixedConn_Cb)(xx + L2CAP_FIRST_FIXED_CHNL,
+                          p_lcb->remote_bd_addr, FALSE, p_lcb->disc_reason, BT_TRANSPORT_BR_EDR);
+#endif
+                    if (p_lcb->p_fixed_ccbs[xx] == NULL) {
+                      bdstr_t bd_addr_str = {0};
+                      L2CAP_TRACE_ERROR("%s: unexpected p_fixed_ccbs[%d] is NULL remote_bd_addr = %s p_lcb = %p in_use = %d link_state = %d handle = %d link_role = %d is_bonding = %d disc_reason = %d transport = %d",
+                                        __func__, xx,
+                                        bdaddr_to_string((bt_bdaddr_t *)&p_lcb->remote_bd_addr,
+                                                         bd_addr_str,
+                                                         sizeof(bd_addr_str)),
+                                        p_lcb, p_lcb->in_use,
+                                        p_lcb->link_state, p_lcb->handle,
+                                        p_lcb->link_role, p_lcb->is_bonding,
+                                        p_lcb->disc_reason, p_lcb->transport);
+                    }
+                    assert(p_lcb->p_fixed_ccbs[xx] != NULL);
+                    l2cu_release_ccb (p_lcb->p_fixed_ccbs[xx]);
+
+                    p_lcb->p_fixed_ccbs[xx] = NULL;
+              }
+          }
+#endif
+        }
+            if (l2cu_create_conn(p_lcb, transport))
+                lcb_is_free = FALSE; /* still using this lcb */
+        }
+
+        p_lcb->p_pending_ccb = NULL;
+
+        /* Release the LCB */
+        if (lcb_is_free)
+            l2cu_release_lcb (p_lcb);
+    }
+
+    /* Now that we have a free acl connection, see if any lcbs are pending */
+    if (lcb_is_free && ((p_lcb = l2cu_find_lcb_by_state(LST_CONNECT_HOLDING)) != NULL))
+    {
+        /* we found one-- create a connection */
+        l2cu_create_conn(p_lcb, BT_TRANSPORT_BR_EDR);
+    }
+
+    return status;
+}
+
+
+/*******************************************************************************
+**
+** Function         l2c_link_hci_qos_violation
+**
+** Description      This function is called when an HCI QOS Violation
+**                  event is received.
+**
+** Returns          TRUE if the link is known about, else FALSE
+**
+*******************************************************************************/
+BOOLEAN l2c_link_hci_qos_violation (UINT16 handle)
+{
+    tL2C_LCB        *p_lcb;
+    tL2C_CCB        *p_ccb;
+
+    /* See if we have a link control block for the connection */
+    p_lcb = l2cu_find_lcb_by_handle (handle);
+
+    /* If we don't have one, maybe an SCO link. */
+    if (!p_lcb)
+        return (FALSE);
+
+    /* For all channels, tell the upper layer about it */
+    for (p_ccb = p_lcb->ccb_queue.p_first_ccb; p_ccb; p_ccb = p_ccb->p_next_ccb)
+    {
+        if (p_ccb->p_rcb->api.pL2CA_QoSViolationInd_Cb)
+            l2c_csm_execute (p_ccb, L2CEVT_LP_QOS_VIOLATION_IND, NULL);
+    }
+
+    return (TRUE);
+}
+
+
+
+/*******************************************************************************
+**
+** Function         l2c_link_timeout
+**
+** Description      This function is called when a link timer expires
+**
+** Returns          void
+**
+*******************************************************************************/
+void l2c_link_timeout (tL2C_LCB *p_lcb)
+{
+    tL2C_CCB   *p_ccb;
+    tBTM_STATUS rc;
+
+     L2CAP_TRACE_EVENT ("L2CAP - l2c_link_timeout() link state %d first CCB %p is_bonding:%d",
+         p_lcb->link_state, p_lcb->ccb_queue.p_first_ccb, p_lcb->is_bonding);
+
+    /* If link was connecting or disconnecting, clear all channels and drop the LCB */
+    if ((p_lcb->link_state == LST_CONNECTING_WAIT_SWITCH) ||
+        (p_lcb->link_state == LST_CONNECTING) ||
+        (p_lcb->link_state == LST_CONNECT_HOLDING) ||
+        (p_lcb->link_state == LST_DISCONNECTING))
+    {
+        p_lcb->p_pending_ccb = NULL;
+
+        /* For all channels, send a disconnect indication event through */
+        /* their FSMs. The CCBs should remove themselves from the LCB   */
+        for (p_ccb = p_lcb->ccb_queue.p_first_ccb; p_ccb; )
+        {
+            tL2C_CCB *pn = p_ccb->p_next_ccb;
+
+            l2c_csm_execute (p_ccb, L2CEVT_LP_DISCONNECT_IND, NULL);
+
+            p_ccb = pn;
+        }
+#if (BLE_INCLUDED == TRUE)
+        if (p_lcb->link_state == LST_CONNECTING &&
+            l2cb.is_ble_connecting == TRUE)
+        {
+            L2CA_CancelBleConnectReq(l2cb.ble_connecting_bda);
+        }
+#endif
+        /* Release the LCB */
+        l2cu_release_lcb (p_lcb);
+    }
+
+    /* If link is connected, check for inactivity timeout */
+    if (p_lcb->link_state == LST_CONNECTED)
+    {
+        /* Check for ping outstanding */
+        if (p_lcb->p_echo_rsp_cb)
+        {
+            tL2CA_ECHO_RSP_CB *p_cb = p_lcb->p_echo_rsp_cb;
+
+            /* Zero out the callback in case app immediately calls us again */
+            p_lcb->p_echo_rsp_cb = NULL;
+
+            (*p_cb) (L2CAP_PING_RESULT_NO_RESP);
+
+             L2CAP_TRACE_WARNING ("L2CAP - ping timeout");
+
+            /* For all channels, send a disconnect indication event through */
+            /* their FSMs. The CCBs should remove themselves from the LCB   */
+            for (p_ccb = p_lcb->ccb_queue.p_first_ccb; p_ccb; )
+            {
+                tL2C_CCB *pn = p_ccb->p_next_ccb;
+
+                l2c_csm_execute (p_ccb, L2CEVT_LP_DISCONNECT_IND, NULL);
+
+                p_ccb = pn;
+            }
+        }
+
+        /* If no channels in use, drop the link. */
+        if (!p_lcb->ccb_queue.p_first_ccb)
+        {
+            period_ms_t timeout_ms;
+            bool start_timeout = true;
+
+            rc = btm_sec_disconnect (p_lcb->handle, HCI_ERR_PEER_USER);
+
+            if (rc == BTM_CMD_STORED)
+            {
+                /* Security Manager will take care of disconnecting, state will be updated at that time */
+                start_timeout = false;
+            }
+            else if (rc == BTM_CMD_STARTED)
+            {
+                p_lcb->link_state = LST_DISCONNECTING;
+                timeout_ms = L2CAP_LINK_DISCONNECT_TIMEOUT_MS;
+            }
+            else if (rc == BTM_SUCCESS)
+            {
+                l2cu_process_fixed_disc_cback(p_lcb);
+                /* BTM SEC will make sure that link is release (probably after pairing is done) */
+                p_lcb->link_state = LST_DISCONNECTING;
+                start_timeout = false;
+            }
+            else if (rc == BTM_BUSY)
+            {
+                /* BTM is still executing security process. Let lcb stay as connected */
+                start_timeout = false;
+            }
+            else if ((p_lcb->is_bonding)
+                  && (btsnd_hcic_disconnect (p_lcb->handle, HCI_ERR_PEER_USER)))
+            {
+                l2cu_process_fixed_disc_cback(p_lcb);
+                p_lcb->link_state = LST_DISCONNECTING;
+                timeout_ms = L2CAP_LINK_DISCONNECT_TIMEOUT_MS;
+            }
+            else
+            {
+                /* probably no buffer to send disconnect */
+                timeout_ms = BT_1SEC_TIMEOUT_MS;
+            }
+
+            if (start_timeout) {
+                alarm_set_on_queue(p_lcb->l2c_lcb_timer, timeout_ms,
+                                   l2c_lcb_timer_timeout, p_lcb,
+                                   btu_general_alarm_queue);
+            }
+        }
+        else
+        {
+            /* Check in case we were flow controlled */
+            l2c_link_check_send_pkts (p_lcb, NULL, NULL);
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         l2c_info_resp_timer_timeout
+**
+** Description      This function is called when an info request times out
+**
+** Returns          void
+**
+*******************************************************************************/
+void l2c_info_resp_timer_timeout(void *data)
+{
+    tL2C_LCB *p_lcb = (tL2C_LCB *)data;
+    tL2C_CCB   *p_ccb;
+    tL2C_CONN_INFO  ci;
+
+    /* If we timed out waiting for info response, just continue using basic if allowed */
+    if (p_lcb->w4_info_rsp)
+    {
+        /* If waiting for security complete, restart the info response timer */
+        for (p_ccb = p_lcb->ccb_queue.p_first_ccb; p_ccb; p_ccb = p_ccb->p_next_ccb)
+        {
+            if ( (p_ccb->chnl_state == CST_ORIG_W4_SEC_COMP) || (p_ccb->chnl_state == CST_TERM_W4_SEC_COMP) )
+            {
+                alarm_set_on_queue(p_lcb->info_resp_timer,
+                                   L2CAP_WAIT_INFO_RSP_TIMEOUT_MS,
+                                   l2c_info_resp_timer_timeout, p_lcb,
+                                   btu_general_alarm_queue);
+                return;
+            }
+        }
+
+        p_lcb->w4_info_rsp = FALSE;
+
+        /* If link is in process of being brought up */
+        if ((p_lcb->link_state != LST_DISCONNECTED) &&
+            (p_lcb->link_state != LST_DISCONNECTING))
+        {
+            /* Notify active channels that peer info is finished */
+            if (p_lcb->ccb_queue.p_first_ccb)
+            {
+                ci.status = HCI_SUCCESS;
+                memcpy (ci.bd_addr, p_lcb->remote_bd_addr, sizeof(BD_ADDR));
+
+                for (p_ccb = p_lcb->ccb_queue.p_first_ccb; p_ccb; p_ccb = p_ccb->p_next_ccb)
+                {
+                    l2c_csm_execute (p_ccb, L2CEVT_L2CAP_INFO_RSP, &ci);
+                }
+            }
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         l2c_link_adjust_allocation
+**
+** Description      This function is called when a link is created or removed
+**                  to calculate the amount of packets each link may send to
+**                  the HCI without an ack coming back.
+**
+**                  Currently, this is a simple allocation, dividing the
+**                  number of Controller Packets by the number of links. In
+**                  the future, QOS configuration should be examined.
+**
+** Returns          void
+**
+*******************************************************************************/
+void l2c_link_adjust_allocation (void)
+{
+    UINT16      qq, yy, qq_remainder;
+    tL2C_LCB    *p_lcb;
+    UINT16      hi_quota, low_quota;
+    UINT16      num_lowpri_links = 0;
+    UINT16      num_hipri_links  = 0;
+    UINT16      controller_xmit_quota = l2cb.num_lm_acl_bufs;
+    UINT16      high_pri_link_quota = L2CAP_HIGH_PRI_MIN_XMIT_QUOTA_A;
+
+    /* If no links active, reset buffer quotas and controller buffers */
+    if (l2cb.num_links_active == 0)
+    {
+        l2cb.controller_xmit_window = l2cb.num_lm_acl_bufs;
+        l2cb.round_robin_quota = l2cb.round_robin_unacked = 0;
+        return;
+    }
+
+    /* First, count the links */
+    for (yy = 0, p_lcb = &l2cb.lcb_pool[0]; yy < MAX_L2CAP_LINKS; yy++, p_lcb++)
+    {
+        if (p_lcb->in_use)
+        {
+            if (p_lcb->acl_priority == L2CAP_PRIORITY_HIGH)
+                num_hipri_links++;
+            else
+                num_lowpri_links++;
+        }
+    }
+
+    /* now adjust high priority link quota */
+    low_quota = num_lowpri_links ? 1 : 0;
+    while ( (num_hipri_links * high_pri_link_quota + low_quota) > controller_xmit_quota )
+        high_pri_link_quota--;
+
+    /* Work out the xmit quota and buffer quota high and low priorities */
+    hi_quota  = num_hipri_links * high_pri_link_quota;
+    low_quota = (hi_quota < controller_xmit_quota) ? controller_xmit_quota - hi_quota : 1;
+
+    /* Work out and save the HCI xmit quota for each low priority link */
+
+    /* If each low priority link cannot have at least one buffer */
+    if (num_lowpri_links > low_quota)
+    {
+        l2cb.round_robin_quota = low_quota;
+        qq = qq_remainder = 1;
+    }
+    /* If each low priority link can have at least one buffer */
+    else if (num_lowpri_links > 0)
+    {
+        l2cb.round_robin_quota = 0;
+        l2cb.round_robin_unacked = 0;
+        qq = low_quota / num_lowpri_links;
+        qq_remainder = low_quota % num_lowpri_links;
+    }
+    /* If no low priority link */
+    else
+    {
+        l2cb.round_robin_quota = 0;
+        l2cb.round_robin_unacked = 0;
+        qq = qq_remainder = 1;
+    }
+
+    L2CAP_TRACE_EVENT ("l2c_link_adjust_allocation  num_hipri: %u  num_lowpri: %u  low_quota: %u  round_robin_quota: %u  qq: %u",
+                        num_hipri_links, num_lowpri_links, low_quota,
+                        l2cb.round_robin_quota, qq);
+
+    /* Now, assign the quotas to each link */
+    for (yy = 0, p_lcb = &l2cb.lcb_pool[0]; yy < MAX_L2CAP_LINKS; yy++, p_lcb++)
+    {
+        if (p_lcb->in_use)
+        {
+            if (p_lcb->acl_priority == L2CAP_PRIORITY_HIGH)
+            {
+                p_lcb->link_xmit_quota   = high_pri_link_quota;
+            }
+            else
+            {
+                /* Safety check in case we switched to round-robin with something outstanding */
+                /* if sent_not_acked is added into round_robin_unacked then don't add it again */
+                /* l2cap keeps updating sent_not_acked for exiting from round robin */
+                if (( p_lcb->link_xmit_quota > 0 )&&( qq == 0 ))
+                    l2cb.round_robin_unacked += p_lcb->sent_not_acked;
+
+                p_lcb->link_xmit_quota   = qq;
+                if (qq_remainder > 0)
+                {
+                    p_lcb->link_xmit_quota++;
+                    qq_remainder--;
+                }
+            }
+
+            L2CAP_TRACE_EVENT ("l2c_link_adjust_allocation LCB %d   Priority: %d  XmitQuota: %d",
+                                yy, p_lcb->acl_priority, p_lcb->link_xmit_quota);
+
+            L2CAP_TRACE_EVENT ("        SentNotAcked: %d  RRUnacked: %d",
+                                p_lcb->sent_not_acked, l2cb.round_robin_unacked);
+
+            /* There is a special case where we have readjusted the link quotas and  */
+            /* this link may have sent anything but some other link sent packets so  */
+            /* so we may need a timer to kick off this link's transmissions.         */
+            if ( (p_lcb->link_state == LST_CONNECTED)
+              && (!list_is_empty(p_lcb->link_xmit_data_q))
+                 && (p_lcb->sent_not_acked < p_lcb->link_xmit_quota) ) {
+                alarm_set_on_queue(p_lcb->l2c_lcb_timer,
+                                   L2CAP_LINK_FLOW_CONTROL_TIMEOUT_MS,
+                                   l2c_lcb_timer_timeout, p_lcb,
+                                   btu_general_alarm_queue);
+            }
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         l2c_link_adjust_chnl_allocation
+**
+** Description      This function is called to calculate the amount of packets each
+**                  non-F&EC channel may have outstanding.
+**
+**                  Currently, this is a simple allocation, dividing the number
+**                  of packets allocated to the link by the number of channels. In
+**                  the future, QOS configuration should be examined.
+**
+** Returns          void
+**
+*******************************************************************************/
+void l2c_link_adjust_chnl_allocation (void)
+{
+    UINT8       xx;
+
+    L2CAP_TRACE_DEBUG("%s", __func__);
+
+    /* assign buffer quota to each channel based on its data rate requirement */
+    for (xx = 0; xx < MAX_L2CAP_CHANNELS; xx++)
+    {
+        tL2C_CCB *p_ccb = l2cb.ccb_pool + xx;
+
+        if (!p_ccb->in_use)
+            continue;
+
+        tL2CAP_CHNL_DATA_RATE data_rate = p_ccb->tx_data_rate + p_ccb->rx_data_rate;
+        p_ccb->buff_quota = L2CAP_CBB_DEFAULT_DATA_RATE_BUFF_QUOTA * data_rate;
+        L2CAP_TRACE_EVENT("CID:0x%04x FCR Mode:%u Priority:%u TxDataRate:%u RxDataRate:%u Quota:%u",
+                          p_ccb->local_cid, p_ccb->peer_cfg.fcr.mode,
+                          p_ccb->ccb_priority, p_ccb->tx_data_rate,
+                          p_ccb->rx_data_rate, p_ccb->buff_quota);
+
+        /* quota may be change so check congestion */
+        l2cu_check_channel_congestion(p_ccb);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         l2c_link_processs_num_bufs
+**
+** Description      This function is called when a "controller buffer size"
+**                  event is first received from the controller. It updates
+**                  the L2CAP values.
+**
+** Returns          void
+**
+*******************************************************************************/
+void l2c_link_processs_num_bufs (UINT16 num_lm_acl_bufs)
+{
+    l2cb.num_lm_acl_bufs = l2cb.controller_xmit_window = num_lm_acl_bufs;
+
+}
+
+/*******************************************************************************
+**
+** Function         l2c_link_pkts_rcvd
+**
+** Description      This function is called from the HCI transport when it is time
+**                  tto send a "Host ready for packets" command. This is only when
+**                  host to controller flow control is used. If fills in the arrays
+**                  of numbers of packets and handles.
+**
+** Returns          count of number of entries filled in
+**
+*******************************************************************************/
+UINT8 l2c_link_pkts_rcvd (UINT16 *num_pkts, UINT16 *handles)
+{
+    UINT8       num_found = 0;
+
+    UNUSED(num_pkts);
+    UNUSED(handles);
+
+    return (num_found);
+}
+
+/*******************************************************************************
+**
+** Function         l2c_link_role_changed
+**
+** Description      This function is called whan a link's master/slave role change
+**                  event is received. It simply updates the link control block.
+**
+** Returns          void
+**
+*******************************************************************************/
+void l2c_link_role_changed (BD_ADDR bd_addr, UINT8 new_role, UINT8 hci_status)
+{
+    tL2C_LCB *p_lcb;
+    int      xx;
+
+    /* Make sure not called from HCI Command Status (bd_addr and new_role are invalid) */
+    if (bd_addr)
+    {
+        /* If here came form hci role change event */
+        p_lcb = l2cu_find_lcb_by_bd_addr (bd_addr, BT_TRANSPORT_BR_EDR);
+        if (p_lcb)
+        {
+            p_lcb->link_role = new_role;
+
+            /* Reset high priority link if needed */
+            if (hci_status == HCI_SUCCESS)
+                l2cu_set_acl_priority(bd_addr, p_lcb->acl_priority, TRUE);
+        }
+    }
+
+    /* Check if any LCB was waiting for switch to be completed */
+    for (xx = 0, p_lcb = &l2cb.lcb_pool[0]; xx < MAX_L2CAP_LINKS; xx++, p_lcb++)
+    {
+        if ((p_lcb->in_use) && (p_lcb->link_state == LST_CONNECTING_WAIT_SWITCH))
+        {
+            l2cu_create_conn_after_switch (p_lcb);
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         l2c_pin_code_request
+**
+** Description      This function is called whan a pin-code request is received
+**                  on a connection. If there are no channels active yet on the
+**                  link, it extends the link first connection timer.  Make sure
+**                  that inactivity timer is not extended if PIN code happens
+**                  to be after last ccb released.
+**
+** Returns          void
+**
+*******************************************************************************/
+void l2c_pin_code_request (BD_ADDR bd_addr)
+{
+    tL2C_LCB *p_lcb = l2cu_find_lcb_by_bd_addr (bd_addr, BT_TRANSPORT_BR_EDR);
+
+    if ( (p_lcb) && (!p_lcb->ccb_queue.p_first_ccb) )
+    {
+        alarm_set_on_queue(p_lcb->l2c_lcb_timer,
+                           L2CAP_LINK_CONNECT_EXT_TIMEOUT_MS,
+                           l2c_lcb_timer_timeout, p_lcb,
+                           btu_general_alarm_queue);
+    }
+}
+
+#if L2CAP_WAKE_PARKED_LINK == TRUE
+/*******************************************************************************
+**
+** Function         l2c_link_check_power_mode
+**
+** Description      This function is called to check power mode.
+**
+** Returns          TRUE if link is going to be active from park
+**                  FALSE if nothing to send or not in park mode
+**
+*******************************************************************************/
+BOOLEAN l2c_link_check_power_mode (tL2C_LCB *p_lcb)
+{
+    tBTM_PM_MODE     mode;
+    tL2C_CCB    *p_ccb;
+    BOOLEAN need_to_active = FALSE;
+
+    /*
+     * We only switch park to active only if we have unsent packets
+     */
+    if (list_is_empty(p_lcb->link_xmit_data_q))
+    {
+        for (p_ccb = p_lcb->ccb_queue.p_first_ccb; p_ccb; p_ccb = p_ccb->p_next_ccb)
+        {
+            if (!fixed_queue_is_empty(p_ccb->xmit_hold_q))
+            {
+                need_to_active = TRUE;
+                break;
+            }
+        }
+    }
+    else
+        need_to_active = TRUE;
+
+    /* if we have packets to send */
+    if ( need_to_active )
+    {
+        /* check power mode */
+        if (BTM_ReadPowerMode(p_lcb->remote_bd_addr, &mode) == BTM_SUCCESS)
+        {
+            if ( mode == BTM_PM_STS_PENDING )
+            {
+                L2CAP_TRACE_DEBUG ("LCB(0x%x) is in PM pending state", p_lcb->handle);
+
+                return TRUE;
+            }
+        }
+    }
+    return FALSE;
+}
+#endif /* L2CAP_WAKE_PARKED_LINK == TRUE) */
+
+/*******************************************************************************
+**
+** Function         l2c_link_check_send_pkts
+**
+** Description      This function is called to check if it can send packets
+**                  to the Host Controller. It may be passed the address of
+**                  a packet to send.
+**
+** Returns          void
+**
+*******************************************************************************/
+void l2c_link_check_send_pkts (tL2C_LCB *p_lcb, tL2C_CCB *p_ccb, BT_HDR *p_buf)
+{
+    int         xx;
+    BOOLEAN     single_write = FALSE;
+
+    /* Save the channel ID for faster counting */
+    if (p_buf)
+    {
+        if (p_ccb != NULL)
+        {
+            p_buf->event = p_ccb->local_cid;
+            single_write = TRUE;
+        }
+        else
+            p_buf->event = 0;
+
+        p_buf->layer_specific = 0;
+        list_append(p_lcb->link_xmit_data_q, p_buf);
+
+        if (p_lcb->link_xmit_quota == 0)
+        {
+#if BLE_INCLUDED == TRUE
+            if (p_lcb->transport == BT_TRANSPORT_LE)
+                l2cb.ble_check_round_robin = TRUE;
+            else
+#endif
+                l2cb.check_round_robin = TRUE;
+        }
+    }
+
+    /* If this is called from uncongested callback context break recursive calling.
+    ** This LCB will be served when receiving number of completed packet event.
+    */
+    if (l2cb.is_cong_cback_context)
+        return;
+
+    /* If we are in a scenario where there are not enough buffers for each link to
+    ** have at least 1, then do a round-robin for all the LCBs
+    */
+    if ( (p_lcb == NULL) || (p_lcb->link_xmit_quota == 0) )
+    {
+        if (p_lcb == NULL)
+            p_lcb = l2cb.lcb_pool;
+        else if (!single_write)
+            p_lcb++;
+
+        /* Loop through, starting at the next */
+        for (xx = 0; xx < MAX_L2CAP_LINKS; xx++, p_lcb++)
+        {
+            /* If controller window is full, nothing to do */
+            if (((l2cb.controller_xmit_window == 0 ||
+                  (l2cb.round_robin_unacked >= l2cb.round_robin_quota))
+#if (BLE_INCLUDED == TRUE)
+                && (p_lcb->transport == BT_TRANSPORT_BR_EDR)
+                )
+              || (p_lcb->transport == BT_TRANSPORT_LE &&
+                 (l2cb.ble_round_robin_unacked >= l2cb.ble_round_robin_quota ||
+                  l2cb.controller_le_xmit_window == 0 )))
+#else
+                ))
+#endif
+            break;
+
+
+            /* Check for wraparound */
+            if (p_lcb == &l2cb.lcb_pool[MAX_L2CAP_LINKS])
+                p_lcb = &l2cb.lcb_pool[0];
+
+            if ( (!p_lcb->in_use)
+               || (p_lcb->partial_segment_being_sent)
+               || (p_lcb->link_state != LST_CONNECTED)
+               || (p_lcb->link_xmit_quota != 0)
+               || (L2C_LINK_CHECK_POWER_MODE (p_lcb)) )
+                continue;
+
+            /* See if we can send anything from the Link Queue */
+            if (!list_is_empty(p_lcb->link_xmit_data_q)) {
+                p_buf = (BT_HDR *)list_front(p_lcb->link_xmit_data_q);
+                list_remove(p_lcb->link_xmit_data_q, p_buf);
+                l2c_link_send_to_lower (p_lcb, p_buf);
+            }
+            else if (single_write)
+            {
+                /* If only doing one write, break out */
+                break;
+            }
+            /* If nothing on the link queue, check the channel queue */
+            else if ((p_buf = l2cu_get_next_buffer_to_send (p_lcb)) != NULL)
+            {
+                l2c_link_send_to_lower (p_lcb, p_buf);
+            }
+        }
+
+        /* If we finished without using up our quota, no need for a safety check */
+        if ( (l2cb.controller_xmit_window > 0)
+          && (l2cb.round_robin_unacked < l2cb.round_robin_quota)
+#if (BLE_INCLUDED == TRUE)
+          && (p_lcb->transport == BT_TRANSPORT_BR_EDR)
+#endif
+          )
+            l2cb.check_round_robin = FALSE;
+
+#if (BLE_INCLUDED == TRUE)
+        if ( (l2cb.controller_le_xmit_window > 0)
+          && (l2cb.ble_round_robin_unacked < l2cb.ble_round_robin_quota)
+          && (p_lcb->transport == BT_TRANSPORT_LE))
+            l2cb.ble_check_round_robin = FALSE;
+#endif
+    }
+    else /* if this is not round-robin service */
+    {
+        /* If a partial segment is being sent, can't send anything else */
+        if ( (p_lcb->partial_segment_being_sent)
+          || (p_lcb->link_state != LST_CONNECTED)
+          || (L2C_LINK_CHECK_POWER_MODE (p_lcb)) )
+            return;
+
+        /* See if we can send anything from the link queue */
+#if (BLE_INCLUDED == TRUE)
+        while ( ((l2cb.controller_xmit_window != 0 && (p_lcb->transport == BT_TRANSPORT_BR_EDR)) ||
+                 (l2cb.controller_le_xmit_window != 0 && (p_lcb->transport == BT_TRANSPORT_LE)))
+             && (p_lcb->sent_not_acked < p_lcb->link_xmit_quota))
+#else
+        while ( (l2cb.controller_xmit_window != 0)
+             && (p_lcb->sent_not_acked < p_lcb->link_xmit_quota))
+#endif
+        {
+            if (list_is_empty(p_lcb->link_xmit_data_q))
+                break;
+
+            p_buf = (BT_HDR *)list_front(p_lcb->link_xmit_data_q);
+            list_remove(p_lcb->link_xmit_data_q, p_buf);
+            if (!l2c_link_send_to_lower (p_lcb, p_buf))
+                break;
+        }
+
+        if (!single_write)
+        {
+            /* See if we can send anything for any channel */
+#if (BLE_INCLUDED == TRUE)
+            while ( ((l2cb.controller_xmit_window != 0 && (p_lcb->transport == BT_TRANSPORT_BR_EDR)) ||
+                    (l2cb.controller_le_xmit_window != 0 && (p_lcb->transport == BT_TRANSPORT_LE)))
+                    && (p_lcb->sent_not_acked < p_lcb->link_xmit_quota))
+#else
+            while ((l2cb.controller_xmit_window != 0) && (p_lcb->sent_not_acked < p_lcb->link_xmit_quota))
+#endif
+            {
+                if ((p_buf = l2cu_get_next_buffer_to_send (p_lcb)) == NULL)
+                    break;
+
+                if (!l2c_link_send_to_lower (p_lcb, p_buf))
+                    break;
+            }
+        }
+
+        /* There is a special case where we have readjusted the link quotas and  */
+        /* this link may have sent anything but some other link sent packets so  */
+        /* so we may need a timer to kick off this link's transmissions.         */
+        if ( (!list_is_empty(p_lcb->link_xmit_data_q)) && (p_lcb->sent_not_acked < p_lcb->link_xmit_quota) ) {
+            alarm_set_on_queue(p_lcb->l2c_lcb_timer,
+                               L2CAP_LINK_FLOW_CONTROL_TIMEOUT_MS,
+                               l2c_lcb_timer_timeout, p_lcb,
+                               btu_general_alarm_queue);
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         l2c_link_send_to_lower
+**
+** Description      This function queues the buffer for HCI transmission
+**
+** Returns          TRUE for success, FALSE for fail
+**
+*******************************************************************************/
+static BOOLEAN l2c_link_send_to_lower (tL2C_LCB *p_lcb, BT_HDR *p_buf)
+{
+    UINT16      num_segs;
+    UINT16      xmit_window, acl_data_size;
+    const controller_t *controller = controller_get_interface();
+
+    if ((p_buf->len <= controller->get_acl_packet_size_classic()
+#if (BLE_INCLUDED == TRUE)
+        && (p_lcb->transport == BT_TRANSPORT_BR_EDR)) ||
+        ((p_lcb->transport == BT_TRANSPORT_LE) && (p_buf->len <= controller->get_acl_packet_size_ble()))
+#else
+        )
+#endif
+        )
+    {
+        if (p_lcb->link_xmit_quota == 0)
+        {
+#if (BLE_INCLUDED == TRUE)
+            if (p_lcb->transport == BT_TRANSPORT_LE)
+                l2cb.ble_round_robin_unacked++;
+            else
+#endif
+                l2cb.round_robin_unacked++;
+        }
+        p_lcb->sent_not_acked++;
+        p_buf->layer_specific = 0;
+
+#if (BLE_INCLUDED == TRUE)
+        if (p_lcb->transport == BT_TRANSPORT_LE)
+        {
+            l2cb.controller_le_xmit_window--;
+            bte_main_hci_send(p_buf, (UINT16)(BT_EVT_TO_LM_HCI_ACL|LOCAL_BLE_CONTROLLER_ID));
+        }
+        else
+#endif
+        {
+            l2cb.controller_xmit_window--;
+            bte_main_hci_send(p_buf, BT_EVT_TO_LM_HCI_ACL);
+        }
+    }
+    else
+    {
+#if BLE_INCLUDED == TRUE
+        if (p_lcb->transport == BT_TRANSPORT_LE)
+        {
+            acl_data_size = controller->get_acl_data_size_ble();
+            xmit_window = l2cb.controller_le_xmit_window;
+
+        }
+        else
+#endif
+        {
+            acl_data_size = controller->get_acl_data_size_classic();
+            xmit_window = l2cb.controller_xmit_window;
+        }
+        num_segs = (p_buf->len - HCI_DATA_PREAMBLE_SIZE + acl_data_size - 1) / acl_data_size;
+
+
+        /* If doing round-robin, then only 1 segment each time */
+        if (p_lcb->link_xmit_quota == 0)
+        {
+            num_segs = 1;
+            p_lcb->partial_segment_being_sent = TRUE;
+        }
+        else
+        {
+            /* Multi-segment packet. Make sure it can fit */
+            if (num_segs > xmit_window)
+            {
+                num_segs = xmit_window;
+                p_lcb->partial_segment_being_sent = TRUE;
+            }
+
+            if (num_segs > (p_lcb->link_xmit_quota - p_lcb->sent_not_acked))
+            {
+                num_segs = (p_lcb->link_xmit_quota - p_lcb->sent_not_acked);
+                p_lcb->partial_segment_being_sent = TRUE;
+            }
+        }
+
+        p_buf->layer_specific        = num_segs;
+#if BLE_INCLUDED == TRUE
+        if (p_lcb->transport == BT_TRANSPORT_LE)
+        {
+            l2cb.controller_le_xmit_window -= num_segs;
+            if (p_lcb->link_xmit_quota == 0)
+                l2cb.ble_round_robin_unacked += num_segs;
+        }
+        else
+#endif
+        {
+            l2cb.controller_xmit_window -= num_segs;
+
+            if (p_lcb->link_xmit_quota == 0)
+                l2cb.round_robin_unacked += num_segs;
+        }
+
+        p_lcb->sent_not_acked += num_segs;
+#if BLE_INCLUDED == TRUE
+        if (p_lcb->transport == BT_TRANSPORT_LE)
+        {
+            bte_main_hci_send(p_buf, (UINT16)(BT_EVT_TO_LM_HCI_ACL|LOCAL_BLE_CONTROLLER_ID));
+        }
+        else
+#endif
+        {
+            bte_main_hci_send(p_buf, BT_EVT_TO_LM_HCI_ACL);
+        }
+    }
+
+#if (L2CAP_HCI_FLOW_CONTROL_DEBUG == TRUE)
+#if (BLE_INCLUDED == TRUE)
+    if (p_lcb->transport == BT_TRANSPORT_LE)
+    {
+        L2CAP_TRACE_DEBUG ("TotalWin=%d,Hndl=0x%x,Quota=%d,Unack=%d,RRQuota=%d,RRUnack=%d",
+                l2cb.controller_le_xmit_window,
+                p_lcb->handle,
+                p_lcb->link_xmit_quota, p_lcb->sent_not_acked,
+                l2cb.ble_round_robin_quota, l2cb.ble_round_robin_unacked);
+    }
+    else
+#endif
+    {
+        L2CAP_TRACE_DEBUG ("TotalWin=%d,Hndl=0x%x,Quota=%d,Unack=%d,RRQuota=%d,RRUnack=%d",
+                l2cb.controller_xmit_window,
+                p_lcb->handle,
+                p_lcb->link_xmit_quota, p_lcb->sent_not_acked,
+                l2cb.round_robin_quota, l2cb.round_robin_unacked);
+    }
+#endif
+
+    return TRUE;
+}
+
+/*******************************************************************************
+**
+** Function         l2c_link_process_num_completed_pkts
+**
+** Description      This function is called when a "number-of-completed-packets"
+**                  event is received from the controller. It updates all the
+**                  LCB transmit counts.
+**
+** Returns          void
+**
+*******************************************************************************/
+void l2c_link_process_num_completed_pkts (UINT8 *p)
+{
+    UINT8       num_handles, xx;
+    UINT16      handle;
+    UINT16      num_sent;
+    tL2C_LCB    *p_lcb;
+
+    STREAM_TO_UINT8 (num_handles, p);
+
+    for (xx = 0; xx < num_handles; xx++)
+    {
+        STREAM_TO_UINT16 (handle, p);
+        STREAM_TO_UINT16 (num_sent, p);
+
+        p_lcb = l2cu_find_lcb_by_handle (handle);
+
+        /* Callback for number of completed packet event    */
+        /* Originally designed for [3DSG]                   */
+        if((p_lcb != NULL) && (p_lcb->p_nocp_cb))
+        {
+            L2CAP_TRACE_DEBUG ("L2CAP - calling NoCP callback");
+            (*p_lcb->p_nocp_cb)(p_lcb->remote_bd_addr);
+        }
+
+        if (p_lcb)
+        {
+#if (BLE_INCLUDED == TRUE)
+        if (p_lcb && (p_lcb->transport == BT_TRANSPORT_LE))
+            l2cb.controller_le_xmit_window += num_sent;
+        else
+#endif
+            {
+                /* Maintain the total window to the controller */
+                l2cb.controller_xmit_window += num_sent;
+            }
+            /* If doing round-robin, adjust communal counts */
+            if (p_lcb->link_xmit_quota == 0)
+            {
+#if BLE_INCLUDED == TRUE
+                if (p_lcb->transport == BT_TRANSPORT_LE)
+                {
+                   /* Don't go negative */
+                    if (l2cb.ble_round_robin_unacked > num_sent)
+                        l2cb.ble_round_robin_unacked -= num_sent;
+                    else
+                        l2cb.ble_round_robin_unacked = 0;
+                }
+                else
+#endif
+                {
+                    /* Don't go negative */
+                    if (l2cb.round_robin_unacked > num_sent)
+                        l2cb.round_robin_unacked -= num_sent;
+                    else
+                        l2cb.round_robin_unacked = 0;
+                }
+            }
+
+            /* Don't go negative */
+            if (p_lcb->sent_not_acked > num_sent)
+                p_lcb->sent_not_acked -= num_sent;
+            else
+                p_lcb->sent_not_acked = 0;
+
+            l2c_link_check_send_pkts (p_lcb, NULL, NULL);
+
+            /* If we were doing round-robin for low priority links, check 'em */
+            if ( (p_lcb->acl_priority == L2CAP_PRIORITY_HIGH)
+              && (l2cb.check_round_robin)
+              && (l2cb.round_robin_unacked < l2cb.round_robin_quota) )
+            {
+              l2c_link_check_send_pkts (NULL, NULL, NULL);
+            }
+#if BLE_INCLUDED == TRUE
+            if ((p_lcb->transport == BT_TRANSPORT_LE)
+                && (p_lcb->acl_priority == L2CAP_PRIORITY_HIGH)
+                && ((l2cb.ble_check_round_robin)
+                && (l2cb.ble_round_robin_unacked < l2cb.ble_round_robin_quota)))
+            {
+              l2c_link_check_send_pkts (NULL, NULL, NULL);
+            }
+#endif
+        }
+
+#if (L2CAP_HCI_FLOW_CONTROL_DEBUG == TRUE)
+        if (p_lcb)
+        {
+#if (BLE_INCLUDED == TRUE)
+            if (p_lcb->transport == BT_TRANSPORT_LE)
+            {
+                L2CAP_TRACE_DEBUG ("TotalWin=%d,LinkUnack(0x%x)=%d,RRCheck=%d,RRUnack=%d",
+                    l2cb.controller_le_xmit_window,
+                    p_lcb->handle, p_lcb->sent_not_acked,
+                    l2cb.ble_check_round_robin, l2cb.ble_round_robin_unacked);
+            }
+            else
+#endif
+            {
+                L2CAP_TRACE_DEBUG ("TotalWin=%d,LinkUnack(0x%x)=%d,RRCheck=%d,RRUnack=%d",
+                    l2cb.controller_xmit_window,
+                    p_lcb->handle, p_lcb->sent_not_acked,
+                    l2cb.check_round_robin, l2cb.round_robin_unacked);
+
+            }
+        }
+        else
+        {
+#if (BLE_INCLUDED == TRUE)
+            L2CAP_TRACE_DEBUG ("TotalWin=%d  LE_Win: %d, Handle=0x%x, RRCheck=%d, RRUnack=%d",
+                l2cb.controller_xmit_window,
+                l2cb.controller_le_xmit_window,
+                handle,
+                l2cb.ble_check_round_robin, l2cb.ble_round_robin_unacked);
+#else
+            L2CAP_TRACE_DEBUG ("TotalWin=%d  Handle=0x%x  RRCheck=%d  RRUnack=%d",
+                l2cb.controller_xmit_window,
+                handle,
+                l2cb.check_round_robin, l2cb.round_robin_unacked);
+#endif
+        }
+#endif
+    }
+
+#if (defined(HCILP_INCLUDED) && HCILP_INCLUDED == TRUE)
+    /* only full stack can enable sleep mode */
+    btu_check_bt_sleep ();
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         l2c_link_segments_xmitted
+**
+** Description      This function is called from the HCI Interface when an ACL
+**                  data packet segment is transmitted.
+**
+** Returns          void
+**
+*******************************************************************************/
+void l2c_link_segments_xmitted (BT_HDR *p_msg)
+{
+    UINT8       *p = (UINT8 *)(p_msg + 1) + p_msg->offset;
+    UINT16      handle;
+    tL2C_LCB    *p_lcb;
+
+    /* Extract the handle */
+    STREAM_TO_UINT16 (handle, p);
+    handle   = HCID_GET_HANDLE (handle);
+
+    /* Find the LCB based on the handle */
+    if ((p_lcb = l2cu_find_lcb_by_handle (handle)) == NULL)
+    {
+        L2CAP_TRACE_WARNING ("L2CAP - rcvd segment complete, unknown handle: %d", handle);
+        osi_free(p_msg);
+        return;
+    }
+
+    if (p_lcb->link_state == LST_CONNECTED)
+    {
+        /* Enqueue the buffer to the head of the transmit queue, and see */
+        /* if we can transmit anything more.                             */
+        list_prepend(p_lcb->link_xmit_data_q, p_msg);
+
+        p_lcb->partial_segment_being_sent = FALSE;
+
+        l2c_link_check_send_pkts (p_lcb, NULL, NULL);
+    }
+    else
+        osi_free(p_msg);
+}
diff --git a/rtkbt/code/bt/stack/l2cap/l2c_main.c b/rtkbt/code/bt/stack/l2cap/l2c_main.c
new file mode 100755
index 0000000..dab56a2
--- /dev/null
+++ b/rtkbt/code/bt/stack/l2cap/l2c_main.c
@@ -0,0 +1,954 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains the main L2CAP entry points
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_l2c_main"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "bt_target.h"
+#include "btm_int.h"
+#include "btu.h"
+#include "device/include/controller.h"
+#include "bt_common.h"
+#include "hcimsgs.h"
+#include "l2c_api.h"
+#include "l2c_int.h"
+#include "l2cdefs.h"
+#include "osi/include/log.h"
+
+
+extern fixed_queue_t *btu_general_alarm_queue;
+
+/********************************************************************************/
+/*              L O C A L    F U N C T I O N     P R O T O T Y P E S            */
+/********************************************************************************/
+static void process_l2cap_cmd (tL2C_LCB *p_lcb, UINT8 *p, UINT16 pkt_len);
+
+/********************************************************************************/
+/*                 G L O B A L      L 2 C A P       D A T A                     */
+/********************************************************************************/
+#if L2C_DYNAMIC_MEMORY == FALSE
+tL2C_CB l2cb;
+#endif
+
+/*******************************************************************************
+**
+** Function         l2c_rcv_acl_data
+**
+** Description      This function is called from the HCI Interface when an ACL
+**                  data packet is received.
+**
+** Returns          void
+**
+*******************************************************************************/
+void l2c_rcv_acl_data (BT_HDR *p_msg)
+{
+    UINT8       *p = (UINT8 *)(p_msg + 1) + p_msg->offset;
+    UINT16      handle, hci_len;
+    UINT8       pkt_type;
+    tL2C_LCB    *p_lcb;
+    tL2C_CCB    *p_ccb = NULL;
+    UINT16      l2cap_len, rcv_cid, psm;
+    UINT16      credit;
+
+    /* Extract the handle */
+    STREAM_TO_UINT16 (handle, p);
+    pkt_type = HCID_GET_EVENT (handle);
+    handle   = HCID_GET_HANDLE (handle);
+
+    /* Since the HCI Transport is putting segmented packets back together, we */
+    /* should never get a valid packet with the type set to "continuation"    */
+    if (pkt_type != L2CAP_PKT_CONTINUE)
+    {
+        /* Find the LCB based on the handle */
+        if ((p_lcb = l2cu_find_lcb_by_handle (handle)) == NULL)
+        {
+            UINT8       cmd_code;
+
+            /* There is a slight possibility (specifically with USB) that we get an */
+            /* L2CAP connection request before we get the HCI connection complete.  */
+            /* So for these types of messages, hold them for up to 2 seconds.       */
+            STREAM_TO_UINT16 (hci_len, p);
+            STREAM_TO_UINT16 (l2cap_len, p);
+            STREAM_TO_UINT16 (rcv_cid, p);
+            STREAM_TO_UINT8  (cmd_code, p);
+
+            if ((p_msg->layer_specific == 0) && (rcv_cid == L2CAP_SIGNALLING_CID)
+                    && (cmd_code == L2CAP_CMD_INFO_REQ || cmd_code == L2CAP_CMD_CONN_REQ)) {
+                L2CAP_TRACE_WARNING ("L2CAP - holding ACL for unknown handle:%d ls:%d"
+                        "  cid:%d opcode:%d cur count:%d", handle, p_msg->layer_specific,
+                        rcv_cid, cmd_code, list_length(l2cb.rcv_pending_q));
+                p_msg->layer_specific = 2;
+                list_append(l2cb.rcv_pending_q, p_msg);
+
+                if (list_length(l2cb.rcv_pending_q) == 1) {
+                    alarm_set_on_queue(l2cb.receive_hold_timer,
+                                       BT_1SEC_TIMEOUT_MS,
+                                       l2c_receive_hold_timer_timeout, NULL,
+                                       btu_general_alarm_queue);
+                }
+
+                return;
+            } else {
+                L2CAP_TRACE_ERROR ("L2CAP - rcvd ACL for unknown handle:%d ls:%d cid:%d"
+                        " opcode:%d cur count:%d", handle, p_msg->layer_specific, rcv_cid,
+                        cmd_code, list_length(l2cb.rcv_pending_q));
+            }
+            osi_free(p_msg);
+            return;
+        }
+    }
+    else
+    {
+        L2CAP_TRACE_WARNING ("L2CAP - expected pkt start or complete, got: %d", pkt_type);
+        osi_free(p_msg);
+        return;
+    }
+
+    /* Extract the length and update the buffer header */
+    STREAM_TO_UINT16 (hci_len, p);
+    p_msg->offset += 4;
+
+    /* Extract the length and CID */
+    STREAM_TO_UINT16 (l2cap_len, p);
+    STREAM_TO_UINT16 (rcv_cid, p);
+
+#if BLE_INCLUDED == TRUE
+   /* for BLE channel, always notify connection when ACL data received on the link */
+   if (p_lcb && p_lcb->transport == BT_TRANSPORT_LE && p_lcb->link_state != LST_DISCONNECTING)
+      /* only process fixed channel data as channel open indication when link is not in disconnecting mode */
+        l2cble_notify_le_connection(p_lcb->remote_bd_addr);
+#endif
+
+    /* Find the CCB for this CID */
+    if (rcv_cid >= L2CAP_BASE_APPL_CID)
+    {
+        if ((p_ccb = l2cu_find_ccb_by_cid (p_lcb, rcv_cid)) == NULL)
+        {
+            L2CAP_TRACE_WARNING ("L2CAP - unknown CID: 0x%04x", rcv_cid);
+            osi_free(p_msg);
+            return;
+        }
+    }
+
+    if (hci_len >= L2CAP_PKT_OVERHEAD)  /* Must receive at least the L2CAP length and CID.*/
+    {
+        p_msg->len    = hci_len - L2CAP_PKT_OVERHEAD;
+        p_msg->offset += L2CAP_PKT_OVERHEAD;
+    }
+    else
+    {
+        L2CAP_TRACE_WARNING ("L2CAP - got incorrect hci header" );
+        osi_free(p_msg);
+        return;
+    }
+
+    if (l2cap_len != p_msg->len)
+    {
+        L2CAP_TRACE_WARNING ("L2CAP - bad length in pkt. Exp: %d  Act: %d",
+                              l2cap_len, p_msg->len);
+
+        osi_free(p_msg);
+        return;
+    }
+
+    /* Send the data through the channel state machine */
+    if (rcv_cid == L2CAP_SIGNALLING_CID)
+    {
+        process_l2cap_cmd (p_lcb, p, l2cap_len);
+        osi_free(p_msg);
+    }
+    else if (rcv_cid == L2CAP_CONNECTIONLESS_CID)
+    {
+        /* process_connectionless_data (p_lcb); */
+        STREAM_TO_UINT16 (psm, p);
+        L2CAP_TRACE_DEBUG( "GOT CONNECTIONLESS DATA PSM:%d", psm ) ;
+
+#if (L2CAP_UCD_INCLUDED == TRUE)
+        /* if it is not broadcast, check UCD registration */
+        if ( l2c_ucd_check_rx_pkts( p_lcb, p_msg ) )
+        {
+            /* nothing to do */
+        }
+        else
+#endif
+            osi_free(p_msg);
+    }
+#if (BLE_INCLUDED == TRUE)
+    else if (rcv_cid == L2CAP_BLE_SIGNALLING_CID)
+    {
+        l2cble_process_sig_cmd (p_lcb, p, l2cap_len);
+        osi_free(p_msg);
+    }
+#endif
+#if (L2CAP_NUM_FIXED_CHNLS > 0)
+    else if ((rcv_cid >= L2CAP_FIRST_FIXED_CHNL) && (rcv_cid <= L2CAP_LAST_FIXED_CHNL) &&
+             (l2cb.fixed_reg[rcv_cid - L2CAP_FIRST_FIXED_CHNL].pL2CA_FixedData_Cb != NULL) )
+    {
+        /* If no CCB for this channel, allocate one */
+        if (p_lcb &&
+            /* only process fixed channel data when link is open or wait for data indication */
+            (p_lcb->link_state != LST_DISCONNECTING) &&
+            l2cu_initialize_fixed_ccb (p_lcb, rcv_cid, &l2cb.fixed_reg[rcv_cid - L2CAP_FIRST_FIXED_CHNL].fixed_chnl_opts))
+        {
+            p_ccb = p_lcb->p_fixed_ccbs[rcv_cid - L2CAP_FIRST_FIXED_CHNL];
+
+            if (p_ccb->peer_cfg.fcr.mode != L2CAP_FCR_BASIC_MODE)
+                l2c_fcr_proc_pdu (p_ccb, p_msg);
+            else
+                (*l2cb.fixed_reg[rcv_cid - L2CAP_FIRST_FIXED_CHNL].pL2CA_FixedData_Cb)
+                    (rcv_cid, p_lcb->remote_bd_addr, p_msg);
+        }
+        else
+            osi_free(p_msg);
+    }
+#endif
+
+    else
+    {
+        if (p_ccb == NULL)
+            osi_free(p_msg);
+        else
+        {
+            if (p_lcb->transport == BT_TRANSPORT_LE)
+            {
+               l2c_lcc_proc_pdu(p_ccb,p_msg);
+               // Got a pkt, valid send out credits to the peer device
+               credit = L2CAP_LE_DEFAULT_CREDIT;
+               l2c_csm_execute(p_ccb, L2CEVT_L2CA_SEND_FLOW_CONTROL_CREDIT, &credit);
+            }
+            else
+            {
+                /* Basic mode packets go straight to the state machine */
+                if (p_ccb->peer_cfg.fcr.mode == L2CAP_FCR_BASIC_MODE)
+                    l2c_csm_execute (p_ccb, L2CEVT_L2CAP_DATA, p_msg);
+                else
+                {
+                    /* eRTM or streaming mode, so we need to validate states first */
+                    if ((p_ccb->chnl_state == CST_OPEN) || (p_ccb->chnl_state == CST_CONFIG))
+                        l2c_fcr_proc_pdu (p_ccb, p_msg);
+                    else
+                        osi_free (p_msg);
+                }
+            }
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         process_l2cap_cmd
+**
+** Description      This function is called when a packet is received on the
+**                  L2CAP signalling CID
+**
+** Returns          void
+**
+*******************************************************************************/
+static void process_l2cap_cmd (tL2C_LCB *p_lcb, UINT8 *p, UINT16 pkt_len)
+{
+    UINT8           *p_pkt_end, *p_next_cmd, *p_cfg_end, *p_cfg_start;
+    UINT8           cmd_code, cfg_code, cfg_len, id;
+    tL2C_CONN_INFO  con_info;
+    tL2CAP_CFG_INFO cfg_info;
+    UINT16          rej_reason, rej_mtu, lcid, rcid, info_type;
+    tL2C_CCB        *p_ccb;
+    tL2C_RCB        *p_rcb;
+    BOOLEAN         cfg_rej, pkt_size_rej = FALSE;
+    UINT16          cfg_rej_len, cmd_len;
+    UINT16          result;
+    tL2C_CONN_INFO  ci;
+
+#if (defined BLE_INCLUDED && BLE_INCLUDED == TRUE)
+    /* if l2cap command received in CID 1 on top of an LE link, ignore this command */
+    if (p_lcb->transport == BT_TRANSPORT_LE)
+        return;
+#endif
+
+    /* Reject the packet if it exceeds the default Signalling Channel MTU */
+    if (pkt_len > L2CAP_DEFAULT_MTU)
+    {
+        /* Core Spec requires a single response to the first command found in a multi-command
+        ** L2cap packet.  If only responses in the packet, then it will be ignored.
+        ** Here we simply mark the bad packet and decide which cmd ID to reject later
+        */
+        pkt_size_rej = TRUE;
+        L2CAP_TRACE_ERROR ("L2CAP SIG MTU Pkt Len Exceeded (672) -> pkt_len: %d", pkt_len);
+    }
+
+    p_next_cmd = p;
+    p_pkt_end  = p + pkt_len;
+
+    memset (&cfg_info, 0, sizeof(cfg_info));
+
+    /* An L2CAP packet may contain multiple commands */
+    while (TRUE)
+    {
+        /* Smallest command is 4 bytes */
+        if ((p = p_next_cmd) > (p_pkt_end - 4))
+            break;
+
+        STREAM_TO_UINT8  (cmd_code, p);
+        STREAM_TO_UINT8  (id, p);
+        STREAM_TO_UINT16 (cmd_len, p);
+
+        /* Check command length does not exceed packet length */
+        if ((p_next_cmd = p + cmd_len) > p_pkt_end)
+        {
+            L2CAP_TRACE_WARNING ("Command len bad  pkt_len: %d  cmd_len: %d  code: %d",
+                                  pkt_len, cmd_len, cmd_code);
+            break;
+        }
+
+        L2CAP_TRACE_DEBUG ("cmd_code: %d, id:%d, cmd_len:%d", cmd_code, id, cmd_len);
+
+        /* Bad L2CAP packet length, look or cmd to reject */
+        if (pkt_size_rej)
+        {
+            /* If command found rejected it and we're done, otherwise keep looking */
+            if (l2c_is_cmd_rejected(cmd_code, id, p_lcb))
+                return;
+            else
+                continue; /* Look for next cmd/response in current packet */
+        }
+
+        switch (cmd_code)
+        {
+        case L2CAP_CMD_REJECT:
+            STREAM_TO_UINT16 (rej_reason, p);
+            if (rej_reason == L2CAP_CMD_REJ_MTU_EXCEEDED)
+            {
+                STREAM_TO_UINT16 (rej_mtu, p);
+                /* What to do with the MTU reject ? We have negotiated an MTU. For now */
+                /* we will ignore it and let a higher protocol timeout take care of it */
+
+                L2CAP_TRACE_WARNING ("L2CAP - MTU rej Handle: %d MTU: %d", p_lcb->handle, rej_mtu);
+            }
+            if (rej_reason == L2CAP_CMD_REJ_INVALID_CID)
+            {
+                STREAM_TO_UINT16 (rcid, p);
+                STREAM_TO_UINT16 (lcid, p);
+
+                L2CAP_TRACE_WARNING ("L2CAP - rej with CID invalid, LCID: 0x%04x RCID: 0x%04x", lcid, rcid);
+
+                /* Remote CID invalid. Treat as a disconnect */
+                if (((p_ccb = l2cu_find_ccb_by_cid (p_lcb, lcid)) != NULL)
+                 && (p_ccb->remote_cid == rcid))
+                {
+                    /* Fake link disconnect - no reply is generated */
+                    l2c_csm_execute (p_ccb, L2CEVT_LP_DISCONNECT_IND, NULL);
+                }
+            }
+
+            /* SonyEricsson Info request Bug workaround (Continue connection) */
+            else if (rej_reason == L2CAP_CMD_REJ_NOT_UNDERSTOOD && p_lcb->w4_info_rsp)
+            {
+                alarm_cancel(p_lcb->info_resp_timer);
+
+                p_lcb->w4_info_rsp = FALSE;
+                ci.status = HCI_SUCCESS;
+                memcpy (ci.bd_addr, p_lcb->remote_bd_addr, sizeof(BD_ADDR));
+
+                /* For all channels, send the event through their FSMs */
+                for (p_ccb = p_lcb->ccb_queue.p_first_ccb; p_ccb; p_ccb = p_ccb->p_next_ccb)
+                {
+                    l2c_csm_execute (p_ccb, L2CEVT_L2CAP_INFO_RSP, &ci);
+                }
+            }
+            break;
+
+        case L2CAP_CMD_CONN_REQ:
+            STREAM_TO_UINT16 (con_info.psm, p);
+            STREAM_TO_UINT16 (rcid, p);
+            if ((p_rcb = l2cu_find_rcb_by_psm (con_info.psm)) == NULL)
+            {
+                L2CAP_TRACE_WARNING ("L2CAP - rcvd conn req for unknown PSM: %d", con_info.psm);
+                l2cu_reject_connection (p_lcb, rcid, id, L2CAP_CONN_NO_PSM);
+                break;
+            }
+            else
+            {
+                if (!p_rcb->api.pL2CA_ConnectInd_Cb)
+                {
+                    L2CAP_TRACE_WARNING ("L2CAP - rcvd conn req for outgoing-only connection PSM: %d", con_info.psm);
+                    l2cu_reject_connection (p_lcb, rcid, id, L2CAP_CONN_NO_PSM);
+                    break;
+                }
+            }
+            if ((p_ccb = l2cu_allocate_ccb (p_lcb, 0)) == NULL)
+            {
+                L2CAP_TRACE_ERROR ("L2CAP - unable to allocate CCB");
+                l2cu_reject_connection (p_lcb, rcid, id, L2CAP_CONN_NO_RESOURCES);
+                break;
+            }
+            p_ccb->remote_id = id;
+            p_ccb->p_rcb = p_rcb;
+            p_ccb->remote_cid = rcid;
+
+            l2c_csm_execute(p_ccb, L2CEVT_L2CAP_CONNECT_REQ, &con_info);
+            break;
+
+        case L2CAP_CMD_CONN_RSP:
+            STREAM_TO_UINT16 (con_info.remote_cid, p);
+            STREAM_TO_UINT16 (lcid, p);
+            STREAM_TO_UINT16 (con_info.l2cap_result, p);
+            STREAM_TO_UINT16 (con_info.l2cap_status, p);
+
+            if ((p_ccb = l2cu_find_ccb_by_cid (p_lcb, lcid)) == NULL)
+            {
+                L2CAP_TRACE_WARNING ("L2CAP - no CCB for conn rsp, LCID: %d RCID: %d",
+                                      lcid, con_info.remote_cid);
+                break;
+            }
+            if (p_ccb->local_id != id)
+            {
+                L2CAP_TRACE_WARNING ("L2CAP - con rsp - bad ID. Exp: %d Got: %d",
+                                      p_ccb->local_id, id);
+                break;
+            }
+
+            if (con_info.l2cap_result == L2CAP_CONN_OK)
+                l2c_csm_execute(p_ccb, L2CEVT_L2CAP_CONNECT_RSP, &con_info);
+            else if (con_info.l2cap_result == L2CAP_CONN_PENDING)
+                l2c_csm_execute(p_ccb, L2CEVT_L2CAP_CONNECT_RSP_PND, &con_info);
+            else
+                l2c_csm_execute(p_ccb, L2CEVT_L2CAP_CONNECT_RSP_NEG, &con_info);
+
+            break;
+
+        case L2CAP_CMD_CONFIG_REQ:
+            p_cfg_end = p + cmd_len;
+            cfg_rej = FALSE;
+            cfg_rej_len = 0;
+
+            STREAM_TO_UINT16 (lcid, p);
+            STREAM_TO_UINT16 (cfg_info.flags, p);
+
+            p_cfg_start = p;
+
+            cfg_info.flush_to_present = cfg_info.mtu_present = cfg_info.qos_present =
+                cfg_info.fcr_present = cfg_info.fcs_present = FALSE;
+
+            while (p < p_cfg_end)
+            {
+                STREAM_TO_UINT8 (cfg_code, p);
+                STREAM_TO_UINT8 (cfg_len, p);
+
+                switch (cfg_code & 0x7F)
+                {
+                case L2CAP_CFG_TYPE_MTU:
+                    cfg_info.mtu_present = TRUE;
+                    STREAM_TO_UINT16 (cfg_info.mtu, p);
+                    break;
+
+                case L2CAP_CFG_TYPE_FLUSH_TOUT:
+                    cfg_info.flush_to_present = TRUE;
+                    STREAM_TO_UINT16 (cfg_info.flush_to, p);
+                    break;
+
+                case L2CAP_CFG_TYPE_QOS:
+                    cfg_info.qos_present = TRUE;
+                    STREAM_TO_UINT8  (cfg_info.qos.qos_flags, p);
+                    STREAM_TO_UINT8  (cfg_info.qos.service_type, p);
+                    STREAM_TO_UINT32 (cfg_info.qos.token_rate, p);
+                    STREAM_TO_UINT32 (cfg_info.qos.token_bucket_size, p);
+                    STREAM_TO_UINT32 (cfg_info.qos.peak_bandwidth, p);
+                    STREAM_TO_UINT32 (cfg_info.qos.latency, p);
+                    STREAM_TO_UINT32 (cfg_info.qos.delay_variation, p);
+                    break;
+
+                case L2CAP_CFG_TYPE_FCR:
+                    cfg_info.fcr_present = TRUE;
+                    STREAM_TO_UINT8 (cfg_info.fcr.mode, p);
+                    STREAM_TO_UINT8 (cfg_info.fcr.tx_win_sz, p);
+                    STREAM_TO_UINT8 (cfg_info.fcr.max_transmit, p);
+                    STREAM_TO_UINT16 (cfg_info.fcr.rtrans_tout, p);
+                    STREAM_TO_UINT16 (cfg_info.fcr.mon_tout, p);
+                    STREAM_TO_UINT16 (cfg_info.fcr.mps, p);
+                    break;
+
+                case L2CAP_CFG_TYPE_FCS:
+                    cfg_info.fcs_present = TRUE;
+                    STREAM_TO_UINT8 (cfg_info.fcs, p);
+                    break;
+
+                case L2CAP_CFG_TYPE_EXT_FLOW:
+                    cfg_info.ext_flow_spec_present = TRUE;
+                    STREAM_TO_UINT8  (cfg_info.ext_flow_spec.id, p);
+                    STREAM_TO_UINT8  (cfg_info.ext_flow_spec.stype, p);
+                    STREAM_TO_UINT16 (cfg_info.ext_flow_spec.max_sdu_size, p);
+                    STREAM_TO_UINT32 (cfg_info.ext_flow_spec.sdu_inter_time, p);
+                    STREAM_TO_UINT32 (cfg_info.ext_flow_spec.access_latency, p);
+                    STREAM_TO_UINT32 (cfg_info.ext_flow_spec.flush_timeout, p);
+                    break;
+
+                default:
+                    /* sanity check option length */
+                    if ((cfg_len + L2CAP_CFG_OPTION_OVERHEAD) <= cmd_len)
+                    {
+                        p += cfg_len;
+                        if ((cfg_code & 0x80) == 0)
+                        {
+                            cfg_rej_len += cfg_len + L2CAP_CFG_OPTION_OVERHEAD;
+                            cfg_rej = TRUE;
+                        }
+                    }
+                    /* bad length; force loop exit */
+                    else
+                    {
+                        p = p_cfg_end;
+                        cfg_rej = TRUE;
+                    }
+                    break;
+                }
+            }
+
+            if ((p_ccb = l2cu_find_ccb_by_cid (p_lcb, lcid)) != NULL)
+            {
+                p_ccb->remote_id = id;
+                if (cfg_rej)
+                {
+                    l2cu_send_peer_config_rej (p_ccb, p_cfg_start, (UINT16) (cmd_len - L2CAP_CONFIG_REQ_LEN), cfg_rej_len);
+                }
+                else
+                {
+                    l2c_csm_execute (p_ccb, L2CEVT_L2CAP_CONFIG_REQ, &cfg_info);
+                }
+            }
+            else
+            {
+                /* updated spec says send command reject on invalid cid */
+                l2cu_send_peer_cmd_reject (p_lcb, L2CAP_CMD_REJ_INVALID_CID, id, 0, 0);
+            }
+            break;
+
+        case L2CAP_CMD_CONFIG_RSP:
+            p_cfg_end = p + cmd_len;
+            STREAM_TO_UINT16 (lcid, p);
+            STREAM_TO_UINT16 (cfg_info.flags, p);
+            STREAM_TO_UINT16 (cfg_info.result, p);
+
+            cfg_info.flush_to_present = cfg_info.mtu_present = cfg_info.qos_present =
+                cfg_info.fcr_present = cfg_info.fcs_present = FALSE;
+
+            while (p < p_cfg_end)
+            {
+                STREAM_TO_UINT8 (cfg_code, p);
+                STREAM_TO_UINT8 (cfg_len, p);
+
+                switch (cfg_code & 0x7F)
+                {
+                case L2CAP_CFG_TYPE_MTU:
+                    cfg_info.mtu_present = TRUE;
+                    STREAM_TO_UINT16 (cfg_info.mtu, p);
+                    break;
+
+                case L2CAP_CFG_TYPE_FLUSH_TOUT:
+                    cfg_info.flush_to_present = TRUE;
+                    STREAM_TO_UINT16 (cfg_info.flush_to, p);
+                    break;
+
+                case L2CAP_CFG_TYPE_QOS:
+                    cfg_info.qos_present = TRUE;
+                    STREAM_TO_UINT8  (cfg_info.qos.qos_flags, p);
+                    STREAM_TO_UINT8  (cfg_info.qos.service_type, p);
+                    STREAM_TO_UINT32 (cfg_info.qos.token_rate, p);
+                    STREAM_TO_UINT32 (cfg_info.qos.token_bucket_size, p);
+                    STREAM_TO_UINT32 (cfg_info.qos.peak_bandwidth, p);
+                    STREAM_TO_UINT32 (cfg_info.qos.latency, p);
+                    STREAM_TO_UINT32 (cfg_info.qos.delay_variation, p);
+                    break;
+
+                case L2CAP_CFG_TYPE_FCR:
+                    cfg_info.fcr_present = TRUE;
+                    STREAM_TO_UINT8 (cfg_info.fcr.mode, p);
+                    STREAM_TO_UINT8 (cfg_info.fcr.tx_win_sz, p);
+                    STREAM_TO_UINT8 (cfg_info.fcr.max_transmit, p);
+                    STREAM_TO_UINT16 (cfg_info.fcr.rtrans_tout, p);
+                    STREAM_TO_UINT16 (cfg_info.fcr.mon_tout, p);
+                    STREAM_TO_UINT16 (cfg_info.fcr.mps, p);
+                    break;
+
+                case L2CAP_CFG_TYPE_FCS:
+                    cfg_info.fcs_present = TRUE;
+                    STREAM_TO_UINT8 (cfg_info.fcs, p);
+                    break;
+
+                case L2CAP_CFG_TYPE_EXT_FLOW:
+                    cfg_info.ext_flow_spec_present = TRUE;
+                    STREAM_TO_UINT8  (cfg_info.ext_flow_spec.id, p);
+                    STREAM_TO_UINT8  (cfg_info.ext_flow_spec.stype, p);
+                    STREAM_TO_UINT16 (cfg_info.ext_flow_spec.max_sdu_size, p);
+                    STREAM_TO_UINT32 (cfg_info.ext_flow_spec.sdu_inter_time, p);
+                    STREAM_TO_UINT32 (cfg_info.ext_flow_spec.access_latency, p);
+                    STREAM_TO_UINT32 (cfg_info.ext_flow_spec.flush_timeout, p);
+                    break;
+                }
+            }
+
+            if ((p_ccb = l2cu_find_ccb_by_cid (p_lcb, lcid)) != NULL)
+            {
+                if (p_ccb->local_id != id)
+                {
+                    L2CAP_TRACE_WARNING ("L2CAP - cfg rsp - bad ID. Exp: %d Got: %d",
+                                          p_ccb->local_id, id);
+                    break;
+                }
+                if ( (cfg_info.result == L2CAP_CFG_OK) || (cfg_info.result == L2CAP_CFG_PENDING) )
+                    l2c_csm_execute (p_ccb, L2CEVT_L2CAP_CONFIG_RSP, &cfg_info);
+                else
+                    l2c_csm_execute (p_ccb, L2CEVT_L2CAP_CONFIG_RSP_NEG, &cfg_info);
+            }
+            else
+            {
+                L2CAP_TRACE_WARNING ("L2CAP - rcvd cfg rsp for unknown CID: 0x%04x", lcid);
+            }
+            break;
+
+        case L2CAP_CMD_DISC_REQ:
+            STREAM_TO_UINT16 (lcid, p);
+            STREAM_TO_UINT16 (rcid, p);
+
+            if ((p_ccb = l2cu_find_ccb_by_cid (p_lcb, lcid)) != NULL)
+            {
+                if (p_ccb->remote_cid == rcid)
+                {
+                    p_ccb->remote_id = id;
+                    l2c_csm_execute (p_ccb, L2CEVT_L2CAP_DISCONNECT_REQ, &con_info);
+                }
+            }
+            else
+                l2cu_send_peer_disc_rsp (p_lcb, id, lcid, rcid);
+
+            break;
+
+        case L2CAP_CMD_DISC_RSP:
+            STREAM_TO_UINT16 (rcid, p);
+            STREAM_TO_UINT16 (lcid, p);
+
+            if ((p_ccb = l2cu_find_ccb_by_cid (p_lcb, lcid)) != NULL)
+            {
+                if ((p_ccb->remote_cid == rcid) && (p_ccb->local_id == id))
+                {
+                    l2c_csm_execute (p_ccb, L2CEVT_L2CAP_DISCONNECT_RSP, &con_info);
+                }
+            }
+            break;
+
+        case L2CAP_CMD_ECHO_REQ:
+            l2cu_send_peer_echo_rsp (p_lcb, id, NULL, 0);
+            break;
+
+        case L2CAP_CMD_ECHO_RSP:
+            if (p_lcb->p_echo_rsp_cb)
+            {
+                tL2CA_ECHO_RSP_CB *p_cb = p_lcb->p_echo_rsp_cb;
+
+                /* Zero out the callback in case app immediately calls us again */
+                p_lcb->p_echo_rsp_cb = NULL;
+
+                (*p_cb) (L2CAP_PING_RESULT_OK);
+            }
+            break;
+
+        case L2CAP_CMD_INFO_REQ:
+            STREAM_TO_UINT16 (info_type, p);
+            l2cu_send_peer_info_rsp (p_lcb, id, info_type);
+            break;
+
+        case L2CAP_CMD_INFO_RSP:
+            /* Stop the link connect timer if sent before L2CAP connection is up */
+            if (p_lcb->w4_info_rsp)
+            {
+                alarm_cancel(p_lcb->info_resp_timer);
+                p_lcb->w4_info_rsp = FALSE;
+            }
+
+            STREAM_TO_UINT16 (info_type, p);
+            STREAM_TO_UINT16 (result, p);
+
+            p_lcb->info_rx_bits |= (1 << info_type);
+
+            if ( (info_type == L2CAP_EXTENDED_FEATURES_INFO_TYPE)
+              && (result == L2CAP_INFO_RESP_RESULT_SUCCESS) )
+            {
+                STREAM_TO_UINT32( p_lcb->peer_ext_fea, p );
+
+#if (L2CAP_NUM_FIXED_CHNLS > 0)
+                if (p_lcb->peer_ext_fea & L2CAP_EXTFEA_FIXED_CHNLS)
+                {
+                    l2cu_send_peer_info_req (p_lcb, L2CAP_FIXED_CHANNELS_INFO_TYPE);
+                    break;
+                }
+                else
+                {
+                    l2cu_process_fixed_chnl_resp (p_lcb);
+                }
+#endif
+            }
+
+#if (L2CAP_NUM_FIXED_CHNLS > 0)
+            if (info_type == L2CAP_FIXED_CHANNELS_INFO_TYPE)
+            {
+                if (result == L2CAP_INFO_RESP_RESULT_SUCCESS)
+                {
+                    memcpy (p_lcb->peer_chnl_mask, p, L2CAP_FIXED_CHNL_ARRAY_SIZE);
+                }
+
+                l2cu_process_fixed_chnl_resp (p_lcb);
+            }
+#endif
+#if (L2CAP_UCD_INCLUDED == TRUE)
+            else if (info_type == L2CAP_CONNLESS_MTU_INFO_TYPE)
+            {
+                if (result == L2CAP_INFO_RESP_RESULT_SUCCESS)
+                {
+                    STREAM_TO_UINT16 (p_lcb->ucd_mtu, p);
+                }
+            }
+#endif
+
+            ci.status = HCI_SUCCESS;
+            memcpy (ci.bd_addr, p_lcb->remote_bd_addr, sizeof(BD_ADDR));
+            for (p_ccb = p_lcb->ccb_queue.p_first_ccb; p_ccb; p_ccb = p_ccb->p_next_ccb)
+            {
+                l2c_csm_execute (p_ccb, L2CEVT_L2CAP_INFO_RSP, &ci);
+            }
+            break;
+
+        default:
+            L2CAP_TRACE_WARNING ("L2CAP - bad cmd code: %d", cmd_code);
+            l2cu_send_peer_cmd_reject (p_lcb, L2CAP_CMD_REJ_NOT_UNDERSTOOD, id, 0, 0);
+            return;
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         l2c_process_held_packets
+**
+** Description      This function processes any L2CAP packets that arrived before
+**                  the HCI connection complete arrived. It is a work around for
+**                  badly behaved controllers.
+**
+** Returns          void
+**
+*******************************************************************************/
+void l2c_process_held_packets(BOOLEAN timed_out) {
+    if (list_is_empty(l2cb.rcv_pending_q))
+        return;
+
+    if (!timed_out) {
+        alarm_cancel(l2cb.receive_hold_timer);
+        L2CAP_TRACE_WARNING("L2CAP HOLD CONTINUE");
+    } else {
+        L2CAP_TRACE_WARNING("L2CAP HOLD TIMEOUT");
+    }
+
+    for (const list_node_t *node = list_begin(l2cb.rcv_pending_q);
+        node != list_end(l2cb.rcv_pending_q);)  {
+        BT_HDR *p_buf = list_node(node);
+        node = list_next(node);
+        if (!timed_out || (!p_buf->layer_specific) || (--p_buf->layer_specific == 0)) {
+            list_remove(l2cb.rcv_pending_q, p_buf);
+            p_buf->layer_specific = 0xFFFF;
+            l2c_rcv_acl_data(p_buf);
+        }
+    }
+
+    /* If anyone still in the queue, restart the timeout */
+    if (!list_is_empty(l2cb.rcv_pending_q)) {
+        alarm_set_on_queue(l2cb.receive_hold_timer, BT_1SEC_TIMEOUT_MS,
+                           l2c_receive_hold_timer_timeout, NULL,
+                           btu_general_alarm_queue);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         l2c_init
+**
+** Description      This function is called once at startup to initialize
+**                  all the L2CAP structures
+**
+** Returns          void
+**
+*******************************************************************************/
+void l2c_init (void)
+{
+    INT16  xx;
+
+    memset (&l2cb, 0, sizeof (tL2C_CB));
+    /* the psm is increased by 2 before being used */
+    l2cb.dyn_psm = 0xFFF;
+
+    /* Put all the channel control blocks on the free queue */
+    for (xx = 0; xx < MAX_L2CAP_CHANNELS - 1; xx++)
+    {
+        l2cb.ccb_pool[xx].p_next_ccb = &l2cb.ccb_pool[xx + 1];
+    }
+
+#if (L2CAP_NON_FLUSHABLE_PB_INCLUDED == TRUE)
+    /* it will be set to L2CAP_PKT_START_NON_FLUSHABLE if controller supports */
+    l2cb.non_flushable_pbf = L2CAP_PKT_START << L2CAP_PKT_TYPE_SHIFT;
+#endif
+
+    l2cb.p_free_ccb_first = &l2cb.ccb_pool[0];
+    l2cb.p_free_ccb_last  = &l2cb.ccb_pool[MAX_L2CAP_CHANNELS - 1];
+
+#ifdef L2CAP_DESIRED_LINK_ROLE
+    l2cb.desire_role      = L2CAP_DESIRED_LINK_ROLE;
+#else
+    l2cb.desire_role      = HCI_ROLE_SLAVE;
+#endif
+
+    /* Set the default idle timeout */
+    l2cb.idle_timeout = L2CAP_LINK_INACTIVITY_TOUT;
+
+#if defined(L2CAP_INITIAL_TRACE_LEVEL)
+    l2cb.l2cap_trace_level = L2CAP_INITIAL_TRACE_LEVEL;
+#else
+    l2cb.l2cap_trace_level = BT_TRACE_LEVEL_NONE;    /* No traces */
+#endif
+
+#if L2CAP_CONFORMANCE_TESTING == TRUE
+     /* Conformance testing needs a dynamic response */
+    l2cb.test_info_resp = L2CAP_EXTFEA_SUPPORTED_MASK;
+#endif
+
+    /* Number of ACL buffers to use for high priority channel */
+#if (defined(L2CAP_HIGH_PRI_CHAN_QUOTA_IS_CONFIGURABLE) && (L2CAP_HIGH_PRI_CHAN_QUOTA_IS_CONFIGURABLE == TRUE))
+    l2cb.high_pri_min_xmit_quota = L2CAP_HIGH_PRI_MIN_XMIT_QUOTA;
+#endif
+
+#if BLE_INCLUDED == TRUE
+    l2cb.l2c_ble_fixed_chnls_mask =
+         L2CAP_FIXED_CHNL_ATT_BIT | L2CAP_FIXED_CHNL_BLE_SIG_BIT | L2CAP_FIXED_CHNL_SMP_BIT;
+#endif
+
+    l2cb.rcv_pending_q = list_new(NULL);
+    if (l2cb.rcv_pending_q == NULL)
+        LOG_ERROR(LOG_TAG, "%s unable to allocate memory for link layer control block", __func__);
+    l2cb.receive_hold_timer = alarm_new("l2c.receive_hold_timer");
+}
+
+void l2c_free(void) {
+    list_free(l2cb.rcv_pending_q);
+    l2cb.rcv_pending_q = NULL;
+}
+
+void l2c_receive_hold_timer_timeout(UNUSED_ATTR void *data)
+{
+    /* Update the timeouts in the hold queue */
+    l2c_process_held_packets(TRUE);
+}
+
+void l2c_ccb_timer_timeout(void *data)
+{
+    tL2C_CCB *p_ccb = (tL2C_CCB *)data;
+
+    l2c_csm_execute(p_ccb, L2CEVT_TIMEOUT, NULL);
+}
+
+void l2c_fcrb_ack_timer_timeout(void *data)
+{
+    tL2C_CCB *p_ccb = (tL2C_CCB *)data;
+
+    l2c_csm_execute(p_ccb, L2CEVT_ACK_TIMEOUT, NULL);
+}
+
+void l2c_lcb_timer_timeout(void *data)
+{
+    tL2C_LCB *p_lcb = (tL2C_LCB *)data;
+
+    l2c_link_timeout(p_lcb);
+}
+
+/*******************************************************************************
+**
+** Function         l2c_data_write
+**
+** Description      API functions call this function to write data.
+**
+** Returns          L2CAP_DW_SUCCESS, if data accepted, else FALSE
+**                  L2CAP_DW_CONGESTED, if data accepted and the channel is congested
+**                  L2CAP_DW_FAILED, if error
+**
+*******************************************************************************/
+UINT8 l2c_data_write (UINT16 cid, BT_HDR *p_data, UINT16 flags)
+{
+    tL2C_CCB        *p_ccb;
+
+    /* Find the channel control block. We don't know the link it is on. */
+    if ((p_ccb = l2cu_find_ccb_by_cid (NULL, cid)) == NULL)
+    {
+        L2CAP_TRACE_WARNING ("L2CAP - no CCB for L2CA_DataWrite, CID: %d", cid);
+        osi_free(p_data);
+        return (L2CAP_DW_FAILED);
+    }
+
+#ifndef TESTER /* Tester may send any amount of data. otherwise sending message
+                  bigger than mtu size of peer is a violation of protocol */
+    UINT16 mtu;
+
+    if (p_ccb->p_lcb->transport == BT_TRANSPORT_LE)
+        mtu = p_ccb->peer_conn_cfg.mtu;
+    else
+        mtu = p_ccb->peer_cfg.mtu;
+
+    if (p_data->len > mtu)
+    {
+        L2CAP_TRACE_WARNING ("L2CAP - CID: 0x%04x  cannot send message bigger than peer's mtu size", cid);
+        osi_free(p_data);
+        return (L2CAP_DW_FAILED);
+    }
+#endif
+
+    /* channel based, packet based flushable or non-flushable */
+    p_data->layer_specific = flags;
+
+    /* If already congested, do not accept any more packets */
+    if (p_ccb->cong_sent)
+    {
+        L2CAP_TRACE_ERROR ("L2CAP - CID: 0x%04x cannot send, already congested  xmit_hold_q.count: %u  buff_quota: %u",
+                           p_ccb->local_cid,
+                           fixed_queue_length(p_ccb->xmit_hold_q),
+                           p_ccb->buff_quota);
+
+        osi_free(p_data);
+        return (L2CAP_DW_FAILED);
+    }
+
+
+    l2c_csm_execute (p_ccb, L2CEVT_L2CA_DATA_WRITE, p_data);
+
+    if (p_ccb->cong_sent)
+        return (L2CAP_DW_CONGESTED);
+
+    return (L2CAP_DW_SUCCESS);
+}
+
diff --git a/rtkbt/code/bt/stack/l2cap/l2c_ucd.c b/rtkbt/code/bt/stack/l2cap/l2c_ucd.c
new file mode 100755
index 0000000..6a4c3ec
--- /dev/null
+++ b/rtkbt/code/bt/stack/l2cap/l2c_ucd.c
@@ -0,0 +1,1175 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains the L2CAP UCD code
+ *
+ ******************************************************************************/
+
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+
+#include "bt_common.h"
+#include "bt_types.h"
+#include "hcidefs.h"
+#include "hcimsgs.h"
+#include "l2cdefs.h"
+#include "l2c_int.h"
+#include "btu.h"
+#include "btm_api.h"
+#include "btm_int.h"
+
+#if (L2CAP_UCD_INCLUDED == TRUE)
+
+extern fixed_queue_t *btu_bta_alarm_queue;
+
+static BOOLEAN l2c_ucd_connect ( BD_ADDR rem_bda );
+
+/*******************************************************************************
+**
+** Function         l2c_ucd_discover_cback
+**
+** Description      UCD Discover callback
+**
+** Returns          void
+**
+*******************************************************************************/
+static void l2c_ucd_discover_cback (BD_ADDR rem_bda, UINT8 info_type, UINT32 data)
+{
+    tL2C_RCB    *p_rcb = &l2cb.rcb_pool[0];
+    UINT16      xx;
+
+    L2CAP_TRACE_DEBUG ("L2CAP - l2c_ucd_discover_cback");
+
+    for (xx = 0; xx < MAX_L2CAP_CLIENTS; xx++, p_rcb++)
+    {
+        if (p_rcb->in_use)
+        {
+            /* if this application is waiting UCD reception info */
+            if (( info_type == L2CAP_UCD_INFO_TYPE_RECEPTION )
+                && ( p_rcb->ucd.state & L2C_UCD_STATE_W4_RECEPTION ))
+            {
+                p_rcb->ucd.cb_info.pL2CA_UCD_Discover_Cb (rem_bda, info_type, data);
+                p_rcb->ucd.state &= ~(L2C_UCD_STATE_W4_RECEPTION);
+            }
+
+            /* if this application is waiting UCD MTU info */
+            if (( info_type == L2CAP_UCD_INFO_TYPE_MTU )
+                && ( p_rcb->ucd.state & L2C_UCD_STATE_W4_MTU ))
+            {
+                p_rcb->ucd.cb_info.pL2CA_UCD_Discover_Cb (rem_bda, info_type, data);
+                p_rcb->ucd.state &= ~(L2C_UCD_STATE_W4_MTU);
+            }
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         l2c_ucd_data_ind_cback
+**
+** Description      UCD Data callback
+**
+** Returns          void
+**
+*******************************************************************************/
+static void l2c_ucd_data_ind_cback (BD_ADDR rem_bda, BT_HDR *p_buf)
+{
+    UINT8 *p;
+    UINT16 psm;
+    tL2C_RCB    *p_rcb;
+
+    L2CAP_TRACE_DEBUG ("L2CAP - l2c_ucd_data_ind_cback");
+
+    p = (UINT8 *)(p_buf + 1) + p_buf->offset;
+    STREAM_TO_UINT16(psm, p)
+
+    p_buf->offset += L2CAP_UCD_OVERHEAD;
+    p_buf->len    -= L2CAP_UCD_OVERHEAD;
+
+    if ((p_rcb = l2cu_find_rcb_by_psm (psm)) == NULL)
+    {
+        L2CAP_TRACE_ERROR ("L2CAP - no RCB for l2c_ucd_data_ind_cback, PSM: 0x%04x", psm);
+        osi_free(p_buf);
+    }
+    else
+    {
+        p_rcb->ucd.cb_info.pL2CA_UCD_Data_Cb(rem_bda, p_buf);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         l2c_ucd_congestion_status_cback
+**
+** Description      UCD Congestion Status callback
+**
+** Returns          void
+**
+*******************************************************************************/
+static void l2c_ucd_congestion_status_cback (BD_ADDR rem_bda, BOOLEAN is_congested)
+{
+    tL2C_RCB    *p_rcb = &l2cb.rcb_pool[0];
+    UINT16      xx;
+
+    L2CAP_TRACE_DEBUG ("L2CAP - l2c_ucd_congestion_status_cback");
+
+    for (xx = 0; xx < MAX_L2CAP_CLIENTS; xx++, p_rcb++)
+    {
+        if (( p_rcb->in_use )
+          &&( p_rcb->ucd.state != L2C_UCD_STATE_UNUSED ))
+        {
+            if ( p_rcb->ucd.cb_info.pL2CA_UCD_Congestion_Status_Cb )
+            {
+                L2CAP_TRACE_DEBUG ("L2CAP - Calling UCDCongestionStatus_Cb (%d), PSM=0x%04x, BDA: %08x%04x,",
+                                    is_congested, p_rcb->psm,
+                                    (rem_bda[0]<<24)+(rem_bda[1]<<16)+(rem_bda[2]<<8)+rem_bda[3],
+                                    (rem_bda[4]<<8)+rem_bda[5]);
+
+                p_rcb->ucd.cb_info.pL2CA_UCD_Congestion_Status_Cb ( rem_bda, is_congested );
+            }
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         l2c_ucd_disconnect_ind_cback
+**
+** Description      UCD disconnect callback (This prevent to access null pointer)
+**
+** Returns          void
+**
+*******************************************************************************/
+static void l2c_ucd_disconnect_ind_cback (UINT16 cid, BOOLEAN result)
+{
+    /* do nothing */
+}
+
+/*******************************************************************************
+**
+** Function         l2c_ucd_config_ind_cback
+**
+** Description      UCD config callback (This prevent to access null pointer)
+**
+** Returns          void
+**
+*******************************************************************************/
+static void l2c_ucd_config_ind_cback (UINT16 cid, tL2CAP_CFG_INFO *p_cfg)
+{
+    /* do nothing */
+}
+
+/*******************************************************************************
+**
+** Function         l2c_ucd_config_cfm_cback
+**
+** Description      UCD config callback (This prevent to access null pointer)
+**
+** Returns          void
+**
+*******************************************************************************/
+static void l2c_ucd_config_cfm_cback (UINT16 cid, tL2CAP_CFG_INFO *p_cfg)
+{
+    /* do nothing */
+}
+
+/*******************************************************************************
+**
+**  Function        L2CA_UcdRegister
+**
+**  Description     Register PSM on UCD.
+**
+**  Parameters:     tL2CAP_UCD_CB_INFO
+**
+**  Return value:   TRUE if successs
+**
+*******************************************************************************/
+BOOLEAN L2CA_UcdRegister ( UINT16 psm, tL2CAP_UCD_CB_INFO *p_cb_info )
+{
+    tL2C_RCB             *p_rcb;
+
+    L2CAP_TRACE_API  ("L2CA_UcdRegister()  PSM: 0x%04x", psm);
+
+    if ((!p_cb_info->pL2CA_UCD_Discover_Cb)
+     || (!p_cb_info->pL2CA_UCD_Data_Cb))
+    {
+        L2CAP_TRACE_ERROR ("L2CAP - no callback registering PSM(0x%04x) on UCD", psm);
+        return (FALSE);
+    }
+
+    if ((p_rcb = l2cu_find_rcb_by_psm (psm)) == NULL)
+    {
+        L2CAP_TRACE_ERROR ("L2CAP - no RCB for L2CA_UcdRegister, PSM: 0x%04x", psm);
+        return (FALSE);
+    }
+
+    p_rcb->ucd.state   = L2C_UCD_STATE_W4_DATA;
+    p_rcb->ucd.cb_info = *p_cb_info;
+
+    /* check if master rcb is created for UCD */
+    if ((p_rcb = l2cu_find_rcb_by_psm (L2C_UCD_RCB_ID)) == NULL)
+    {
+        if ((p_rcb = l2cu_allocate_rcb (L2C_UCD_RCB_ID)) == NULL)
+        {
+            L2CAP_TRACE_ERROR ("L2CAP - no RCB available for L2CA_UcdRegister");
+            return (FALSE);
+        }
+        else
+        {
+            /* these callback functions will forward data to each UCD application */
+            p_rcb->ucd.cb_info.pL2CA_UCD_Discover_Cb            = l2c_ucd_discover_cback;
+            p_rcb->ucd.cb_info.pL2CA_UCD_Data_Cb                = l2c_ucd_data_ind_cback;
+            p_rcb->ucd.cb_info.pL2CA_UCD_Congestion_Status_Cb   = l2c_ucd_congestion_status_cback;
+
+            memset (&p_rcb->api, 0, sizeof(tL2CAP_APPL_INFO));
+            p_rcb->api.pL2CA_DisconnectInd_Cb        = l2c_ucd_disconnect_ind_cback;
+
+            /* This will make L2CAP check UCD congestion callback */
+            p_rcb->api.pL2CA_CongestionStatus_Cb     = NULL;
+
+            /* do nothing but prevent crash */
+            p_rcb->api.pL2CA_ConfigInd_Cb            = l2c_ucd_config_ind_cback;
+            p_rcb->api.pL2CA_ConfigCfm_Cb            = l2c_ucd_config_cfm_cback;
+        }
+    }
+
+    return (TRUE);
+}
+
+/*******************************************************************************
+**
+**  Function        L2CA_UcdDeregister
+**
+**  Description     Deregister PSM on UCD.
+**
+**  Parameters:     PSM
+**
+**  Return value:   TRUE if successs
+**
+*******************************************************************************/
+BOOLEAN L2CA_UcdDeregister ( UINT16 psm )
+{
+    tL2C_CCB    *p_ccb;
+    tL2C_RCB    *p_rcb;
+    UINT16      xx;
+
+    L2CAP_TRACE_API  ("L2CA_UcdDeregister()  PSM: 0x%04x", psm);
+
+    if ((p_rcb = l2cu_find_rcb_by_psm (psm)) == NULL)
+    {
+        L2CAP_TRACE_ERROR ("L2CAP - no RCB for L2CA_UcdDeregister, PSM: 0x%04x", psm);
+        return (FALSE);
+    }
+
+    p_rcb->ucd.state = L2C_UCD_STATE_UNUSED;
+
+    /* check this was the last UCD registration */
+    p_rcb = &l2cb.rcb_pool[0];
+
+    for (xx = 0; xx < MAX_L2CAP_CLIENTS; xx++, p_rcb++)
+    {
+        if ((p_rcb->in_use) && (p_rcb->ucd.state != L2C_UCD_STATE_UNUSED))
+            return (TRUE);
+    }
+
+    /* delete master rcb for UCD */
+    if ((p_rcb = l2cu_find_rcb_by_psm (L2C_UCD_RCB_ID)) != NULL)
+    {
+        l2cu_release_rcb (p_rcb);
+    }
+
+    /* delete CCB for UCD */
+    p_ccb = l2cb.ccb_pool;
+    for ( xx = 0; xx < MAX_L2CAP_CHANNELS; xx++ )
+    {
+        if (( p_ccb->in_use )
+          &&( p_ccb->local_cid == L2CAP_CONNECTIONLESS_CID ))
+        {
+            l2cu_release_ccb (p_ccb);
+        }
+        p_ccb++;
+    }
+
+    return (TRUE);
+}
+
+/*******************************************************************************
+**
+**  Function        L2CA_UcdDiscover
+**
+**  Description     Discover UCD of remote device.
+**
+**  Parameters:     PSM
+**                  BD_ADDR of remote device
+**                  info_type : L2CAP_UCD_INFO_TYPE_RECEPTION
+**                              L2CAP_UCD_INFO_TYPE_MTU
+**
+**
+**  Return value:   TRUE if successs
+**
+*******************************************************************************/
+BOOLEAN L2CA_UcdDiscover ( UINT16 psm, BD_ADDR rem_bda, UINT8 info_type )
+{
+    tL2C_LCB        *p_lcb;
+    tL2C_CCB        *p_ccb;
+    tL2C_RCB        *p_rcb;
+
+    L2CAP_TRACE_API ("L2CA_UcdDiscover()  PSM: 0x%04x  BDA: %08x%04x, InfoType=0x%02x", psm,
+                      (rem_bda[0]<<24)+(rem_bda[1]<<16)+(rem_bda[2]<<8)+rem_bda[3],
+                      (rem_bda[4]<<8)+rem_bda[5], info_type);
+
+    /* Fail if the PSM is not registered */
+    if (((p_rcb = l2cu_find_rcb_by_psm (psm)) == NULL)
+        ||( p_rcb->ucd.state == L2C_UCD_STATE_UNUSED ))
+    {
+        L2CAP_TRACE_WARNING ("L2CAP - no RCB for L2CA_UcdDiscover, PSM: 0x%04x", psm);
+        return (FALSE);
+    }
+
+    /* First, see if we already have a link to the remote */
+    /* then find the channel control block for UCD. */
+    if (((p_lcb = l2cu_find_lcb_by_bd_addr (rem_bda, BT_TRANSPORT_BR_EDR)) == NULL)
+      ||((p_ccb = l2cu_find_ccb_by_cid (p_lcb, L2CAP_CONNECTIONLESS_CID)) == NULL))
+    {
+        if ( l2c_ucd_connect (rem_bda) == FALSE )
+        {
+            return (FALSE);
+        }
+    }
+
+    /* set waiting flags in rcb */
+
+    if ( info_type & L2CAP_UCD_INFO_TYPE_RECEPTION )
+        p_rcb->ucd.state |= L2C_UCD_STATE_W4_RECEPTION;
+
+    if ( info_type & L2CAP_UCD_INFO_TYPE_MTU )
+        p_rcb->ucd.state |= L2C_UCD_STATE_W4_MTU;
+
+    /* if link is already established */
+    if ((p_lcb)&&(p_lcb->link_state == LST_CONNECTED))
+    {
+        if (!p_ccb)
+        {
+            p_ccb = l2cu_find_ccb_by_cid (p_lcb, L2CAP_CONNECTIONLESS_CID);
+        }
+        l2c_ucd_check_pending_info_req(p_ccb);
+    }
+    return (TRUE);
+}
+
+/*******************************************************************************
+**
+**  Function        L2CA_UcdDataWrite
+**
+**  Description     Send UCD to remote device
+**
+**  Parameters:     PSM
+**                  BD Address of remote
+**                  Pointer to buffer of type BT_HDR
+**                  flags : L2CAP_FLUSHABLE_CH_BASED
+**                          L2CAP_FLUSHABLE_PKT
+**                          L2CAP_NON_FLUSHABLE_PKT
+**
+** Return value     L2CAP_DW_SUCCESS, if data accepted
+**                  L2CAP_DW_FAILED,  if error
+**
+*******************************************************************************/
+UINT16 L2CA_UcdDataWrite (UINT16 psm, BD_ADDR rem_bda, BT_HDR *p_buf, UINT16 flags)
+{
+    tL2C_LCB        *p_lcb;
+    tL2C_CCB        *p_ccb;
+    tL2C_RCB        *p_rcb;
+    UINT8           *p;
+
+    L2CAP_TRACE_API ("L2CA_UcdDataWrite()  PSM: 0x%04x  BDA: %08x%04x", psm,
+                      (rem_bda[0]<<24)+(rem_bda[1]<<16)+(rem_bda[2]<<8)+rem_bda[3],
+                      (rem_bda[4]<<8)+rem_bda[5]);
+
+    /* Fail if the PSM is not registered */
+    if (((p_rcb = l2cu_find_rcb_by_psm (psm)) == NULL)
+        ||( p_rcb->ucd.state == L2C_UCD_STATE_UNUSED ))
+    {
+        L2CAP_TRACE_WARNING ("L2CAP - no RCB for L2CA_UcdDataWrite, PSM: 0x%04x", psm);
+        osi_free(p_buf);
+        return (L2CAP_DW_FAILED);
+    }
+
+    /* First, see if we already have a link to the remote */
+    /*  then find the channel control block for UCD */
+    if (((p_lcb = l2cu_find_lcb_by_bd_addr (rem_bda, BT_TRANSPORT_BR_EDR)) == NULL)
+      ||((p_ccb = l2cu_find_ccb_by_cid (p_lcb, L2CAP_CONNECTIONLESS_CID)) == NULL))
+    {
+        if ( l2c_ucd_connect (rem_bda) == FALSE )
+        {
+            osi_free(p_buf);
+            return (L2CAP_DW_FAILED);
+        }
+
+        /* If we still don't have lcb and ccb after connect attempt, then can't proceed */
+        if (((p_lcb = l2cu_find_lcb_by_bd_addr (rem_bda, BT_TRANSPORT_BR_EDR)) == NULL)
+            || ((p_ccb = l2cu_find_ccb_by_cid (p_lcb, L2CAP_CONNECTIONLESS_CID)) == NULL))
+        {
+            osi_free(p_buf);
+            return (L2CAP_DW_FAILED);
+        }
+    }
+
+    /* write PSM */
+    p_buf->offset -= L2CAP_UCD_OVERHEAD;
+    p_buf->len += L2CAP_UCD_OVERHEAD;
+    p = (UINT8 *)(p_buf + 1) + p_buf->offset;
+
+    UINT16_TO_STREAM (p, psm);
+
+    /* UCD MTU check */
+    if ((p_lcb->ucd_mtu) && (p_buf->len > p_lcb->ucd_mtu))
+    {
+        L2CAP_TRACE_WARNING ("L2CAP - Handle: 0x%04x  UCD bigger than peer's UCD mtu size cannot be sent", p_lcb->handle);
+        osi_free(p_buf);
+        return (L2CAP_DW_FAILED);
+    }
+
+    /* If already congested, do not accept any more packets */
+    if (p_ccb->cong_sent)
+    {
+        L2CAP_TRACE_ERROR ("L2CAP - Handle: 0x%04x UCD cannot be sent, already congested count: %u  buff_quota: %u",
+                           p_lcb->handle,
+                           (fixed_queue_length(p_ccb->xmit_hold_q) +
+                            fixed_queue_length(p_lcb->ucd_out_sec_pending_q)),
+                           p_ccb->buff_quota);
+
+        osi_free(p_buf);
+        return (L2CAP_DW_FAILED);
+    }
+
+    /* channel based, packet based flushable or non-flushable */
+    p_buf->layer_specific = flags;
+
+    l2c_csm_execute (p_ccb, L2CEVT_L2CA_DATA_WRITE, p_buf);
+
+    if (p_ccb->cong_sent)
+        return (L2CAP_DW_CONGESTED);
+    else
+        return (L2CAP_DW_SUCCESS);
+}
+
+/*******************************************************************************
+**
+**  Function        L2CA_UcdSetIdleTimeout
+**
+**  Description     Set UCD Idle timeout.
+**
+**  Parameters:     BD Addr
+**                  Timeout in second
+**
+**  Return value:   TRUE if successs
+**
+*******************************************************************************/
+BOOLEAN L2CA_UcdSetIdleTimeout ( BD_ADDR rem_bda, UINT16 timeout )
+{
+    tL2C_LCB        *p_lcb;
+    tL2C_CCB        *p_ccb;
+
+    L2CAP_TRACE_API ("L2CA_UcdSetIdleTimeout()  Timeout: 0x%04x  BDA: %08x%04x", timeout,
+                      (rem_bda[0]<<24)+(rem_bda[1]<<16)+(rem_bda[2]<<8)+rem_bda[3],
+                      (rem_bda[4]<<8)+rem_bda[5]);
+
+    /* First, see if we already have a link to the remote */
+    /* then find the channel control block. */
+    if (((p_lcb = l2cu_find_lcb_by_bd_addr (rem_bda, BT_TRANSPORT_BR_EDR)) == NULL)
+      ||((p_ccb = l2cu_find_ccb_by_cid (p_lcb, L2CAP_CONNECTIONLESS_CID)) == NULL))
+    {
+        L2CAP_TRACE_WARNING ("L2CAP - no UCD channel");
+        return (FALSE);
+    }
+    else
+    {
+        p_ccb->fixed_chnl_idle_tout = timeout;
+        return (TRUE);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         L2CA_UCDSetTxPriority
+**
+** Description      Sets the transmission priority for a connectionless channel.
+**
+** Returns          TRUE if a valid channel, else FALSE
+**
+*******************************************************************************/
+BOOLEAN L2CA_UCDSetTxPriority ( BD_ADDR rem_bda, tL2CAP_CHNL_PRIORITY priority )
+{
+    tL2C_LCB        *p_lcb;
+    tL2C_CCB        *p_ccb;
+
+    L2CAP_TRACE_API ("L2CA_UCDSetTxPriority()  priority: 0x%02x  BDA: %08x%04x", priority,
+                      (rem_bda[0]<<24)+(rem_bda[1]<<16)+(rem_bda[2]<<8)+rem_bda[3],
+                      (rem_bda[4]<<8)+rem_bda[5]);
+
+    if ((p_lcb = l2cu_find_lcb_by_bd_addr (rem_bda, BT_TRANSPORT_BR_EDR)) == NULL)
+    {
+        L2CAP_TRACE_WARNING ("L2CAP - no LCB for L2CA_UCDSetTxPriority");
+        return (FALSE);
+    }
+
+    /* Find the channel control block */
+    if ((p_ccb = l2cu_find_ccb_by_cid (p_lcb, L2CAP_CONNECTIONLESS_CID)) == NULL)
+    {
+        L2CAP_TRACE_WARNING ("L2CAP - no CCB for L2CA_UCDSetTxPriority");
+        return (FALSE);
+    }
+
+    /* it will update the order of CCB in LCB by priority and update round robin service variables */
+    l2cu_change_pri_ccb (p_ccb, priority);
+
+    return (TRUE);
+}
+
+/*******************************************************************************
+**
+**  Function        l2c_ucd_connect
+**
+**  Description     Connect UCD to remote device.
+**
+**  Parameters:     BD_ADDR of remote device
+**
+**  Return value:   TRUE if successs
+**
+*******************************************************************************/
+static BOOLEAN l2c_ucd_connect ( BD_ADDR rem_bda )
+{
+    tL2C_LCB        *p_lcb;
+    tL2C_CCB        *p_ccb;
+    tL2C_RCB        *p_rcb;
+
+    L2CAP_TRACE_DEBUG ("l2c_ucd_connect()  BDA: %08x%04x",
+                      (rem_bda[0]<<24)+(rem_bda[1]<<16)+(rem_bda[2]<<8)+rem_bda[3],
+                      (rem_bda[4]<<8)+rem_bda[5]);
+
+    /* Fail if we have not established communications with the controller */
+    if (!BTM_IsDeviceUp())
+    {
+        L2CAP_TRACE_WARNING ("l2c_ucd_connect - BTU not ready");
+        return (FALSE);
+    }
+
+    /* First, see if we already have a link to the remote */
+    if ((p_lcb = l2cu_find_lcb_by_bd_addr (rem_bda, BT_TRANSPORT_BR_EDR)) == NULL)
+    {
+        /* No link. Get an LCB and start link establishment */
+        if ( ((p_lcb = l2cu_allocate_lcb (rem_bda, FALSE, BT_TRANSPORT_BR_EDR)) == NULL)
+         ||  (l2cu_create_conn(p_lcb, BT_TRANSPORT_BR_EDR) == FALSE) )
+        {
+            L2CAP_TRACE_WARNING ("L2CAP - conn not started l2c_ucd_connect");
+            return (FALSE);
+        }
+    }
+    else if ( p_lcb->info_rx_bits & (1 << L2CAP_EXTENDED_FEATURES_INFO_TYPE) )
+    {
+        if (!(p_lcb->peer_ext_fea & L2CAP_EXTFEA_UCD_RECEPTION))
+        {
+            L2CAP_TRACE_WARNING ("L2CAP - UCD is not supported by peer, l2c_ucd_connect");
+            return (FALSE);
+        }
+    }
+
+    /* Find the channel control block. */
+    if ((p_ccb = l2cu_find_ccb_by_cid (p_lcb, L2CAP_CONNECTIONLESS_CID)) == NULL)
+    {
+        /* Allocate a channel control block */
+        if ((p_ccb = l2cu_allocate_ccb (p_lcb, 0)) == NULL)
+        {
+            L2CAP_TRACE_WARNING ("L2CAP - no CCB for l2c_ucd_connect");
+            return (FALSE);
+        }
+        else
+        {
+            /* Set CID for the connection */
+            p_ccb->local_cid  = L2CAP_CONNECTIONLESS_CID;
+            p_ccb->remote_cid = L2CAP_CONNECTIONLESS_CID;
+
+            /* Set the default idle timeout value to use */
+            p_ccb->fixed_chnl_idle_tout = L2CAP_UCD_IDLE_TIMEOUT;
+
+            /* Set the default channel priority value to use */
+            l2cu_change_pri_ccb (p_ccb, L2CAP_UCD_CH_PRIORITY);
+
+            if ((p_rcb = l2cu_find_rcb_by_psm (L2C_UCD_RCB_ID)) == NULL)
+            {
+                L2CAP_TRACE_WARNING ("L2CAP - no UCD registered, l2c_ucd_connect");
+                return (FALSE);
+            }
+            /* Save UCD registration info */
+            p_ccb->p_rcb = p_rcb;
+
+            /* There is no configuration, so if the link is up, the channel is up */
+            if (p_lcb->link_state == LST_CONNECTED)
+            {
+                p_ccb->chnl_state = CST_OPEN;
+            }
+        }
+    }
+
+    return (TRUE);
+}
+
+/*******************************************************************************
+**
+**  Function        l2c_ucd_delete_sec_pending_q
+**
+** Description      discard all of UCD packets in security pending queue
+**
+** Returns          None
+**
+*******************************************************************************/
+void l2c_ucd_delete_sec_pending_q(tL2C_LCB  *p_lcb)
+{
+    /* clean up any security pending UCD */
+    while (! fixed_queue_is_empty(p_lcb->ucd_out_sec_pending_q))
+        osi_free(fixed_queue_try_dequeue(p_lcb->ucd_out_sec_pending_q));
+    fixed_queue_free(p_lcb->ucd_out_sec_pending_q, NULL);
+    p_lcb->ucd_out_sec_pending_q = NULL;
+
+    while (! fixed_queue_is_empty(p_lcb->ucd_in_sec_pending_q))
+        osi_free(fixed_queue_try_dequeue(p_lcb->ucd_in_sec_pending_q));
+    fixed_queue_free(p_lcb->ucd_in_sec_pending_q);
+    p_lcb->ucd_in_sec_pending_q = NULL;
+}
+
+/*******************************************************************************
+**
+**  Function        l2c_ucd_check_pending_info_req
+**
+** Description      check if any application is waiting for UCD information
+**
+**  Return          TRUE if any pending UCD info request
+**
+*******************************************************************************/
+BOOLEAN l2c_ucd_check_pending_info_req(tL2C_CCB  *p_ccb)
+{
+    tL2C_RCB    *p_rcb = &l2cb.rcb_pool[0];
+    UINT16      xx;
+    BOOLEAN     pending = FALSE;
+
+    if (p_ccb == NULL)
+    {
+        L2CAP_TRACE_ERROR ("L2CAP - NULL p_ccb in l2c_ucd_check_pending_info_req");
+        return (FALSE);
+    }
+
+    for (xx = 0; xx < MAX_L2CAP_CLIENTS; xx++, p_rcb++)
+    {
+        if (p_rcb->in_use)
+        {
+            /* if application is waiting UCD reception info */
+            if (p_rcb->ucd.state & L2C_UCD_STATE_W4_RECEPTION)
+            {
+                /* if this information is available */
+                if ( p_ccb->p_lcb->info_rx_bits & (1 << L2CAP_EXTENDED_FEATURES_INFO_TYPE) )
+                {
+                    if (!(p_ccb->p_lcb->peer_ext_fea & L2CAP_EXTFEA_UCD_RECEPTION))
+                    {
+                        L2CAP_TRACE_WARNING ("L2CAP - UCD is not supported by peer, l2c_ucd_check_pending_info_req");
+
+                        l2c_ucd_delete_sec_pending_q(p_ccb->p_lcb);
+                        l2cu_release_ccb (p_ccb);
+                    }
+
+                    p_ccb->p_rcb->ucd.cb_info.pL2CA_UCD_Discover_Cb (p_ccb->p_lcb->remote_bd_addr,
+                                                                     L2CAP_UCD_INFO_TYPE_RECEPTION,
+                                                                     p_ccb->p_lcb->peer_ext_fea & L2CAP_EXTFEA_UCD_RECEPTION);
+                }
+                else
+                {
+                    pending = TRUE;
+                    if (p_ccb->p_lcb->w4_info_rsp == FALSE)
+                    {
+                        l2cu_send_peer_info_req (p_ccb->p_lcb, L2CAP_EXTENDED_FEATURES_INFO_TYPE);
+                    }
+                }
+            }
+
+            /* if application is waiting for UCD MTU */
+            if (p_rcb->ucd.state & L2C_UCD_STATE_W4_MTU)
+            {
+                /* if this information is available */
+                if ( p_ccb->p_lcb->info_rx_bits & (1 << L2CAP_CONNLESS_MTU_INFO_TYPE))
+                {
+                    p_ccb->p_rcb->ucd.cb_info.pL2CA_UCD_Discover_Cb (p_ccb->p_lcb->remote_bd_addr,
+                                                                     L2CAP_UCD_INFO_TYPE_MTU,
+                                                                     p_ccb->p_lcb->ucd_mtu);
+                }
+                else
+                {
+                    pending = TRUE;
+                    if (p_ccb->p_lcb->w4_info_rsp == FALSE)
+                    {
+                        l2cu_send_peer_info_req (p_ccb->p_lcb, L2CAP_CONNLESS_MTU_INFO_TYPE);
+                    }
+                }
+            }
+        }
+    }
+    return (pending);
+}
+
+/*******************************************************************************
+**
+**  Function        l2c_ucd_enqueue_pending_out_sec_q
+**
+**  Description     enqueue outgoing UCD packet into security pending queue
+**                  and check congestion
+**
+**  Return          None
+**
+*******************************************************************************/
+void l2c_ucd_enqueue_pending_out_sec_q(tL2C_CCB  *p_ccb, void *p_data)
+{
+    fixed_queue_enqueue(p_ccb->p_lcb->ucd_out_sec_pending_q, p_data);
+    l2cu_check_channel_congestion (p_ccb);
+}
+
+/*******************************************************************************
+**
+**  Function        l2c_ucd_check_pending_out_sec_q
+**
+**  Description     check outgoing security
+**
+**  Return          TRUE if any UCD packet for security
+**
+*******************************************************************************/
+BOOLEAN l2c_ucd_check_pending_out_sec_q(tL2C_CCB  *p_ccb)
+{
+    BT_HDR *p_buf = (BT_HDR*)fixed_queue_try_peek_first(p_ccb->p_lcb->ucd_out_sec_pending_q);
+
+    if (p_buf != NULL)
+    {
+        UINT16 psm;
+        UINT8 *p = (UINT8 *)(p_buf + 1) + p_buf->offset;
+
+        STREAM_TO_UINT16(psm, p)
+
+        p_ccb->chnl_state = CST_ORIG_W4_SEC_COMP;
+        btm_sec_l2cap_access_req (p_ccb->p_lcb->remote_bd_addr, psm,
+                                  p_ccb->p_lcb->handle, CONNLESS_ORIG, &l2c_link_sec_comp, p_ccb);
+
+        return (TRUE);
+    }
+    return (FALSE);
+}
+
+/*******************************************************************************
+**
+**  Function        l2c_ucd_send_pending_out_sec_q
+**
+**  Description     dequeue UCD packet from security pending queue and
+**                  enqueue it into CCB
+**
+**  Return          None
+**
+*******************************************************************************/
+void l2c_ucd_send_pending_out_sec_q(tL2C_CCB  *p_ccb)
+{
+    BT_HDR *p_buf = (BT_HDR*)fixed_queue_try_dequeue(p_ccb->p_lcb->ucd_out_sec_pending_q);
+
+    if (p_buf != NULL)
+    {
+        l2c_enqueue_peer_data (p_ccb, (BT_HDR *)p_buf);
+        l2c_link_check_send_pkts (p_ccb->p_lcb, NULL, NULL);
+    }
+}
+
+/*******************************************************************************
+**
+**  Function        l2c_ucd_discard_pending_out_sec_q
+**
+**  Description     dequeue UCD packet from security pending queue and
+**                  discard it.
+**
+**  Return          None
+**
+*******************************************************************************/
+void l2c_ucd_discard_pending_out_sec_q(tL2C_CCB  *p_ccb)
+{
+    BT_HDR *p_buf = (BT_HDR*)fixed_queue_try_dequeue(p_ccb->p_lcb->ucd_out_sec_pending_q);
+
+    /* we may need to report to application */
+    osi_free(p_buf);
+}
+
+/*******************************************************************************
+**
+**  Function        l2c_ucd_check_pending_in_sec_q
+**
+**  Description     check incoming security
+**
+**  Return          TRUE if any UCD packet for security
+**
+*******************************************************************************/
+BOOLEAN l2c_ucd_check_pending_in_sec_q(tL2C_CCB  *p_ccb)
+{
+    BT_HDR *p_buf = (BT_HDR*)fixed_queue_try_dequeue(p_ccb->p_lcb->ucd_in_sec_pending_q);
+
+    if (p_buf != NULL)
+    {
+        UINT16 psm;
+        UINT8 *p = (UINT8 *)(p_buf + 1) + p_buf->offset;
+        STREAM_TO_UINT16(psm, p)
+
+        p_ccb->chnl_state = CST_TERM_W4_SEC_COMP;
+        btm_sec_l2cap_access_req (p_ccb->p_lcb->remote_bd_addr, psm,
+                                  p_ccb->p_lcb->handle, CONNLESS_TERM, &l2c_link_sec_comp, p_ccb);
+
+        return (TRUE);
+    }
+    return (FALSE);
+}
+
+/*******************************************************************************
+**
+**  Function        l2c_ucd_send_pending_in_sec_q
+**
+**  Description     dequeue UCD packet from security pending queue and
+**                  send it to application
+**
+**  Return          None
+**
+*******************************************************************************/
+void l2c_ucd_send_pending_in_sec_q(tL2C_CCB  *p_ccb)
+{
+    BT_HDR *p_buf = (BT_HDR*)fixed_queue_try_dequeue(p_ccb->p_lcb->ucd_in_sec_pending_q)
+
+    if (p_buf != NULL)
+    {
+        p_ccb->p_rcb->ucd.cb_info.pL2CA_UCD_Data_Cb(p_ccb->p_lcb->remote_bd_addr, (BT_HDR *)p_buf);
+    }
+}
+
+/*******************************************************************************
+**
+**  Function        l2c_ucd_discard_pending_in_sec_q
+**
+**  Description     dequeue UCD packet from security pending queue and
+**                  discard it.
+**
+**  Return          None
+**
+*******************************************************************************/
+void l2c_ucd_discard_pending_in_sec_q(tL2C_CCB  *p_ccb)
+{
+    BT_HDR *p_buf = (BT_HDR*)fixed_queue_try_dequeue(p_ccb->p_lcb->ucd_in_sec_pending_q);
+    osi_free(p_buf);
+}
+
+/*******************************************************************************
+**
+**  Function        l2c_ucd_check_rx_pkts
+**
+**  Description     Check if UCD reception is registered.
+**                  Process received UCD packet if application is expecting.
+**
+**  Return          TRUE if UCD reception is registered
+**
+*******************************************************************************/
+BOOLEAN l2c_ucd_check_rx_pkts(tL2C_LCB  *p_lcb, BT_HDR *p_msg)
+{
+    tL2C_CCB   *p_ccb;
+    tL2C_RCB   *p_rcb;
+
+    if (((p_ccb = l2cu_find_ccb_by_cid (p_lcb, L2CAP_CONNECTIONLESS_CID)) != NULL)
+      ||((p_rcb = l2cu_find_rcb_by_psm (L2C_UCD_RCB_ID)) != NULL))
+    {
+        if (p_ccb == NULL)
+        {
+            /* Allocate a channel control block */
+            if ((p_ccb = l2cu_allocate_ccb (p_lcb, 0)) == NULL)
+            {
+                L2CAP_TRACE_WARNING ("L2CAP - no CCB for UCD reception");
+                osi_free(p_msg);
+                return TRUE;
+            }
+            else
+            {
+                /* Set CID for the connection */
+                p_ccb->local_cid  = L2CAP_CONNECTIONLESS_CID;
+                p_ccb->remote_cid = L2CAP_CONNECTIONLESS_CID;
+
+                /* Set the default idle timeout value to use */
+                p_ccb->fixed_chnl_idle_tout = L2CAP_UCD_IDLE_TIMEOUT;
+
+                /* Set the default channel priority value to use */
+                l2cu_change_pri_ccb (p_ccb, L2CAP_UCD_CH_PRIORITY);
+
+                /* Save registration info */
+                p_ccb->p_rcb = p_rcb;
+
+                p_ccb->chnl_state = CST_OPEN;
+            }
+        }
+        l2c_csm_execute(p_ccb, L2CEVT_L2CAP_DATA, p_msg);
+        return TRUE;
+    }
+    else
+        return FALSE;
+}
+
+/*******************************************************************************
+**
+**  Function        l2c_ucd_process_event
+**
+**  Description     This is called from main state machine when LCID is connectionless
+**                  Process the event if it is for UCD.
+**
+**  Return          TRUE if the event is consumed by UCD
+**                  FALSE if the event needs to be processed by main state machine
+**
+*******************************************************************************/
+BOOLEAN l2c_ucd_process_event(tL2C_CCB *p_ccb, UINT16 event, void *p_data)
+{
+    /* if the event is not processed by this function, this variable will be set to FALSE */
+    BOOLEAN done = TRUE;
+
+    switch (p_ccb->chnl_state)
+    {
+    case CST_CLOSED:
+        switch (event)
+        {
+        case L2CEVT_LP_CONNECT_CFM:     /* Link came up         */
+            /* check if waiting for UCD info */
+            if (!l2c_ucd_check_pending_info_req (p_ccb))
+            {
+                /* check if any outgoing UCD packet is waiting security check */
+                if (!l2c_ucd_check_pending_out_sec_q(p_ccb))
+                {
+                    p_ccb->chnl_state = CST_OPEN;
+                }
+            }
+            break;
+
+        case L2CEVT_L2CAP_DATA:         /* Peer data packet rcvd    */
+            fixed_queue_enqueue(p_ccb->p_lcb->ucd_in_sec_pending_q, p_data);
+            break;
+
+        case L2CEVT_L2CA_DATA_WRITE:    /* Upper layer data to send */
+            l2c_ucd_enqueue_pending_out_sec_q(p_ccb, p_data);
+            break;
+
+        case L2CEVT_L2CAP_INFO_RSP:
+            /* check if waiting for UCD info */
+            if (!l2c_ucd_check_pending_info_req (p_ccb))
+            {
+                /* check if any outgoing UCD packet is waiting security check */
+                if (!l2c_ucd_check_pending_out_sec_q(p_ccb))
+                {
+                    p_ccb->chnl_state = CST_OPEN;
+                }
+            }
+            break;
+
+        default:
+            done = FALSE;   /* main state machine continues to process event */
+            break;
+        }
+        break;
+
+    case CST_ORIG_W4_SEC_COMP:
+        switch (event)
+        {
+        case L2CEVT_SEC_RE_SEND_CMD:    /* BTM has enough info to proceed */
+            /* check if any outgoing UCD packet is waiting security check */
+            if (!l2c_ucd_check_pending_out_sec_q(p_ccb))
+            {
+                p_ccb->chnl_state = CST_OPEN;
+            }
+            break;
+
+        case L2CEVT_SEC_COMP:           /* Security completed success */
+            p_ccb->chnl_state = CST_OPEN;
+            l2c_ucd_send_pending_out_sec_q(p_ccb);
+
+            if (! fixed_queue_is_empty(p_ccb->p_lcb->ucd_out_sec_pending_q))
+            {
+                /* start a timer to send next UCD packet in OPEN state */
+                /* it will prevent stack overflow */
+                alarm_set_on_queue(p_ccb->l2c_ccb_timer, 0,
+                                   l2c_ccb_timer_timeout, p_ccb,
+                                   btu_general_alarm_queue);
+            }
+            else
+            {
+                /* start a timer for idle timeout of UCD */
+                period_ms_t timeout_ms = p_ccb->fixed_chnl_idle_tout * 1000;
+                alarm_set_on_queue(p_ccb->l2c_ccb_timer, timeout_ms,
+                                   l2c_ccb_timer_timeout, p_ccb,
+                                   btu_general_alarm_queue);
+            }
+            break;
+
+        case L2CEVT_SEC_COMP_NEG:
+            p_ccb->chnl_state = CST_OPEN;
+            l2c_ucd_discard_pending_out_sec_q(p_ccb);
+
+            /* start a timer for idle timeout of UCD */
+            period_ms_t timeout_ms = p_ccb->fixed_chnl_idle_tout * 1000;
+            alarm_set_on_queue(p_ccb->l2c_ccb_timer, timeout_ms,
+                               l2c_ccb_timer_timeout, p_ccb,
+                               btu_general_alarm_queue);
+            break;
+
+        case L2CEVT_L2CA_DATA_WRITE:    /* Upper layer data to send */
+            l2c_ucd_enqueue_pending_out_sec_q(p_ccb, p_data);
+            break;
+
+        case L2CEVT_L2CAP_DATA:         /* Peer data packet rcvd    */
+            fixed_queue_enqueue(p_ccb->p_lcb->ucd_in_sec_pending_q, p_data);
+            break;
+
+        case L2CEVT_L2CAP_INFO_RSP:
+            /* check if waiting for UCD info */
+            l2c_ucd_check_pending_info_req (p_ccb);
+            break;
+
+        default:
+            done = FALSE;   /* main state machine continues to process event */
+            break;
+        }
+        break;
+
+
+    case CST_TERM_W4_SEC_COMP:
+        switch (event)
+        {
+        case L2CEVT_SEC_COMP:
+            p_ccb->chnl_state = CST_OPEN;
+            l2c_ucd_send_pending_in_sec_q (p_ccb);
+
+            if (! fixed_queue_is_empty(p_ccb->p_lcb->ucd_in_sec_pending_q))
+            {
+                /* start a timer to check next UCD packet in OPEN state */
+                /* it will prevent stack overflow */
+              alarm_set_on_queue(p_ccb->l2c_ccb_timer, 0,
+                               l2c_ccb_timer_timeout, p_ccb,
+                               btu_general_alarm_queue);
+            }
+            else
+            {
+                /* start a timer for idle timeout of UCD */
+                period_ms_t timeout_ms = p_ccb->fixed_chnl_idle_tout * 1000;
+                alarm_set_on_queue(p_ccb->l2c_ccb_timer, timeout_ms,
+                                   l2c_ccb_timer_timeout, p_ccb,
+                                   btu_general_alarm_queue);
+            }
+            break;
+
+        case L2CEVT_SEC_COMP_NEG:
+            if (((tL2C_CONN_INFO *)p_data)->status == BTM_DELAY_CHECK)
+            {
+                done = FALSE;
+                break;
+            }
+            p_ccb->chnl_state = CST_OPEN;
+            l2c_ucd_discard_pending_in_sec_q (p_ccb);
+
+            /* start a timer for idle timeout of UCD */
+            period_ms_t timeout_ms = p_ccb->fixed_chnl_idle_tout * 1000;
+            alarm_set_on_queue(p_ccb->l2c_ccb_timer, timeout_ms,
+                               l2c_ccb_timer_timeout, p_ccb,
+                               btu_general_alarm_queue);
+            break;
+
+        case L2CEVT_L2CA_DATA_WRITE:        /* Upper layer data to send */
+            l2c_ucd_enqueue_pending_out_sec_q(p_ccb, p_data);
+            break;
+
+        case L2CEVT_L2CAP_DATA:             /* Peer data packet rcvd    */
+            fixed_queue_enqueue(p_ccb->p_lcb->ucd_in_sec_pending_q, p_data);
+            break;
+
+        case L2CEVT_SEC_RE_SEND_CMD:        /* BTM has enough info to proceed */
+            /* check if any incoming UCD packet is waiting security check */
+            if (!l2c_ucd_check_pending_in_sec_q(p_ccb))
+            {
+                p_ccb->chnl_state = CST_OPEN;
+            }
+            break;
+
+        case L2CEVT_L2CAP_INFO_RSP:
+            /* check if waiting for UCD info */
+            l2c_ucd_check_pending_info_req (p_ccb);
+            break;
+
+        default:
+            done = FALSE;   /* main state machine continues to process event */
+            break;
+        }
+        break;
+
+    case CST_OPEN:
+        switch (event)
+        {
+        case L2CEVT_L2CAP_DATA:             /* Peer data packet rcvd    */
+            /* stop idle timer of UCD */
+            alarm_cancel(p_ccb->l2c_ccb_timer);
+
+            fixed_queue_enqueue(p_ccb->p_lcb->ucd_in_sec_pending_q, p_data);
+            l2c_ucd_check_pending_in_sec_q (p_ccb);
+            break;
+
+        case L2CEVT_L2CA_DATA_WRITE:        /* Upper layer data to send */
+            /* stop idle timer of UCD */
+            alarm_cancel(p_ccb->l2c_ccb_timer);
+
+            l2c_ucd_enqueue_pending_out_sec_q(p_ccb, p_data);
+
+            /* coverity[check_return] */ /* coverity[unchecked_value] */
+            /* success changes state, failure stays in current state */
+            l2c_ucd_check_pending_out_sec_q (p_ccb);
+            break;
+
+        case L2CEVT_TIMEOUT:
+            /* check if any UCD packet is waiting security check */
+            if ((!l2c_ucd_check_pending_in_sec_q(p_ccb))
+              &&(!l2c_ucd_check_pending_out_sec_q(p_ccb)))
+            {
+                l2cu_release_ccb (p_ccb);
+            }
+            break;
+
+        case L2CEVT_L2CAP_INFO_RSP:
+            /* check if waiting for UCD info */
+            l2c_ucd_check_pending_info_req (p_ccb);
+            break;
+
+        default:
+            done = FALSE;   /* main state machine continues to process event */
+            break;
+        }
+        break;
+
+    default:
+        done = FALSE;   /* main state machine continues to process event */
+        break;
+    }
+
+    return done;
+}
+#endif /* (L2CAP_UCD_INCLUDED == TRUE) */
diff --git a/rtkbt/code/bt/stack/l2cap/l2c_utils.c b/rtkbt/code/bt/stack/l2cap/l2c_utils.c
new file mode 100755
index 0000000..b955095
--- /dev/null
+++ b/rtkbt/code/bt/stack/l2cap/l2c_utils.c
@@ -0,0 +1,3830 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains L2CAP utility functions
+ *
+ ******************************************************************************/
+
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+
+#include "device/include/controller.h"
+#include "bt_common.h"
+#include "bt_types.h"
+#include "hcimsgs.h"
+#include "l2cdefs.h"
+#include "l2c_int.h"
+#include "hcidefs.h"
+#include "btu.h"
+#include "btm_api.h"
+#include "btm_int.h"
+#include "hcidefs.h"
+#include "bt_utils.h"
+#include "osi/include/allocator.h"
+
+extern fixed_queue_t *btu_general_alarm_queue;
+
+/*******************************************************************************
+**
+** Function         l2cu_allocate_lcb
+**
+** Description      Look for an unused LCB
+**
+** Returns          LCB address or NULL if none found
+**
+*******************************************************************************/
+tL2C_LCB *l2cu_allocate_lcb (BD_ADDR p_bd_addr, BOOLEAN is_bonding, tBT_TRANSPORT transport)
+{
+    int         xx;
+    tL2C_LCB    *p_lcb = &l2cb.lcb_pool[0];
+
+    for (xx = 0; xx < MAX_L2CAP_LINKS; xx++, p_lcb++)
+    {
+        if (!p_lcb->in_use)
+        {
+            alarm_free(p_lcb->l2c_lcb_timer);
+            alarm_free(p_lcb->info_resp_timer);
+            memset (p_lcb, 0, sizeof (tL2C_LCB));
+
+            memcpy (p_lcb->remote_bd_addr, p_bd_addr, BD_ADDR_LEN);
+
+            p_lcb->in_use          = TRUE;
+            p_lcb->link_state      = LST_DISCONNECTED;
+            p_lcb->handle          = HCI_INVALID_HANDLE;
+            p_lcb->link_flush_tout = 0xFFFF;
+            p_lcb->l2c_lcb_timer   = alarm_new("l2c_lcb.l2c_lcb_timer");
+            p_lcb->info_resp_timer = alarm_new("l2c_lcb.info_resp_timer");
+            p_lcb->idle_timeout    = l2cb.idle_timeout;
+            p_lcb->id              = 1;                     /* spec does not allow '0' */
+            p_lcb->is_bonding      = is_bonding;
+#if (BLE_INCLUDED == TRUE)
+            p_lcb->transport       = transport;
+            p_lcb->tx_data_len     = controller_get_interface()->get_ble_default_data_packet_length();
+            p_lcb->le_sec_pending_q = fixed_queue_new(SIZE_MAX);
+
+            if (transport == BT_TRANSPORT_LE)
+            {
+                l2cb.num_ble_links_active++;
+                l2c_ble_link_adjust_allocation();
+            }
+            else
+#endif
+            {
+                l2cb.num_links_active++;
+                l2c_link_adjust_allocation();
+            }
+#if (L2CAP_UCD_INCLUDED == TRUE)
+            p_lcb->ucd_out_sec_pending_q = fixed_queue_new(SIZE_MAX);
+            p_lcb->ucd_in_sec_pending_q = fixed_queue_new(SIZE_MAX);
+#endif
+            p_lcb->link_xmit_data_q = list_new(NULL);
+            return (p_lcb);
+        }
+    }
+
+    /* If here, no free LCB found */
+    return (NULL);
+}
+
+/*******************************************************************************
+**
+** Function         l2cu_update_lcb_4_bonding
+**
+** Description      Mark the lcb for bonding. Used when bonding takes place on
+**                  an existing ACL connection.  (Pre-Lisbon devices)
+**
+** Returns          Nothing
+**
+*******************************************************************************/
+void l2cu_update_lcb_4_bonding (BD_ADDR p_bd_addr, BOOLEAN is_bonding)
+{
+    tL2C_LCB    *p_lcb = l2cu_find_lcb_by_bd_addr (p_bd_addr, BT_TRANSPORT_BR_EDR);
+
+    if (p_lcb)
+    {
+        L2CAP_TRACE_DEBUG ("l2cu_update_lcb_4_bonding  BDA: %08x%04x is_bonding: %d",
+                          (p_bd_addr[0]<<24)+(p_bd_addr[1]<<16)+(p_bd_addr[2]<<8)+p_bd_addr[3],
+                          (p_bd_addr[4]<<8)+p_bd_addr[5], is_bonding);
+        p_lcb->is_bonding = is_bonding;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         l2cu_release_lcb
+**
+** Description      Release an LCB. All timers will be stopped and freed,
+**                  channels dropped, buffers returned etc.
+**
+** Returns          void
+**
+*******************************************************************************/
+void l2cu_release_lcb (tL2C_LCB *p_lcb)
+{
+    tL2C_CCB    *p_ccb;
+
+    p_lcb->in_use     = FALSE;
+    p_lcb->is_bonding = FALSE;
+
+    /* Stop and free timers */
+    alarm_free(p_lcb->l2c_lcb_timer);
+    p_lcb->l2c_lcb_timer = NULL;
+    alarm_free(p_lcb->info_resp_timer);
+    p_lcb->info_resp_timer = NULL;
+
+    /* Release any unfinished L2CAP packet on this link */
+    osi_free_and_reset((void **)&p_lcb->p_hcit_rcv_acl);
+
+#if BTM_SCO_INCLUDED == TRUE
+#if (BLE_INCLUDED == TRUE)
+        if (p_lcb->transport == BT_TRANSPORT_BR_EDR)
+#endif
+        /* Release all SCO links */
+        btm_remove_sco_links(p_lcb->remote_bd_addr);
+#endif
+
+    if (p_lcb->sent_not_acked > 0)
+    {
+#if (BLE_INCLUDED == TRUE)
+        if (p_lcb->transport == BT_TRANSPORT_LE)
+        {
+            l2cb.controller_le_xmit_window += p_lcb->sent_not_acked;
+            if (l2cb.controller_le_xmit_window > l2cb.num_lm_ble_bufs)
+            {
+                l2cb.controller_le_xmit_window = l2cb.num_lm_ble_bufs;
+            }
+        }
+        else
+#endif
+        {
+            l2cb.controller_xmit_window += p_lcb->sent_not_acked;
+            if (l2cb.controller_xmit_window > l2cb.num_lm_acl_bufs)
+            {
+                l2cb.controller_xmit_window = l2cb.num_lm_acl_bufs;
+            }
+        }
+    }
+
+#if (BLE_INCLUDED == TRUE)
+    // Reset BLE connecting flag only if the address matches
+    if (!memcmp(l2cb.ble_connecting_bda, p_lcb->remote_bd_addr, BD_ADDR_LEN))
+        l2cb.is_ble_connecting = FALSE;
+#endif
+
+#if (L2CAP_NUM_FIXED_CHNLS > 0)
+    l2cu_process_fixed_disc_cback(p_lcb);
+#endif
+
+    /* Ensure no CCBs left on this LCB */
+    for (p_ccb = p_lcb->ccb_queue.p_first_ccb; p_ccb; p_ccb = p_lcb->ccb_queue.p_first_ccb)
+    {
+        l2cu_release_ccb (p_ccb);
+    }
+
+    /* Tell BTM Acl management the link was removed */
+    if ((p_lcb->link_state == LST_CONNECTED) || (p_lcb->link_state == LST_DISCONNECTING))
+#if (BLE_INCLUDED == TRUE)
+        btm_acl_removed (p_lcb->remote_bd_addr, p_lcb->transport);
+#else
+        btm_acl_removed (p_lcb->remote_bd_addr, BT_TRANSPORT_BR_EDR);
+#endif
+
+    /* Release any held buffers */
+    if (p_lcb->link_xmit_data_q)
+    {
+        while (!list_is_empty(p_lcb->link_xmit_data_q)) {
+            BT_HDR *p_buf = list_front(p_lcb->link_xmit_data_q);
+            list_remove(p_lcb->link_xmit_data_q, p_buf);
+            osi_free(p_buf);
+        }
+        list_free(p_lcb->link_xmit_data_q);
+        p_lcb->link_xmit_data_q = NULL;
+    }
+
+#if (L2CAP_UCD_INCLUDED == TRUE)
+    /* clean up any security pending UCD */
+    l2c_ucd_delete_sec_pending_q(p_lcb);
+#endif
+
+#if BLE_INCLUDED == TRUE
+    /* Re-adjust flow control windows make sure it does not go negative */
+    if (p_lcb->transport == BT_TRANSPORT_LE)
+    {
+        if (l2cb.num_ble_links_active >= 1)
+            l2cb.num_ble_links_active--;
+
+        l2c_ble_link_adjust_allocation();
+    }
+    else
+#endif
+    {
+        if (l2cb.num_links_active >= 1)
+            l2cb.num_links_active--;
+
+        l2c_link_adjust_allocation();
+    }
+
+    /* Check for ping outstanding */
+    if (p_lcb->p_echo_rsp_cb)
+    {
+        tL2CA_ECHO_RSP_CB *p_cb = p_lcb->p_echo_rsp_cb;
+
+        /* Zero out the callback in case app immediately calls us again */
+        p_lcb->p_echo_rsp_cb = NULL;
+
+        (*p_cb) (L2CAP_PING_RESULT_NO_LINK);
+    }
+
+    /* Check and release all the LE COC connections waiting for security */
+    if (p_lcb->le_sec_pending_q)
+    {
+        while (!fixed_queue_is_empty(p_lcb->le_sec_pending_q))
+        {
+            tL2CAP_SEC_DATA *p_buf = (tL2CAP_SEC_DATA*) fixed_queue_try_dequeue(p_lcb->le_sec_pending_q);
+            if (p_buf->p_callback)
+                p_buf->p_callback(p_lcb->remote_bd_addr, p_lcb->transport, p_buf->p_ref_data, BTM_DEV_RESET);
+            osi_free(p_buf);
+        }
+        fixed_queue_free(p_lcb->le_sec_pending_q, NULL);
+        p_lcb->le_sec_pending_q = NULL;
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         l2cu_find_lcb_by_bd_addr
+**
+** Description      Look through all active LCBs for a match based on the
+**                  remote BD address.
+**
+** Returns          pointer to matched LCB, or NULL if no match
+**
+*******************************************************************************/
+tL2C_LCB  *l2cu_find_lcb_by_bd_addr (BD_ADDR p_bd_addr, tBT_TRANSPORT transport)
+{
+    int         xx;
+    tL2C_LCB    *p_lcb = &l2cb.lcb_pool[0];
+
+    for (xx = 0; xx < MAX_L2CAP_LINKS; xx++, p_lcb++)
+    {
+        if ((p_lcb->in_use) &&
+#if BLE_INCLUDED == TRUE
+            p_lcb->transport == transport &&
+#endif
+            (!memcmp (p_lcb->remote_bd_addr, p_bd_addr, BD_ADDR_LEN)))
+        {
+            return (p_lcb);
+        }
+    }
+
+    /* If here, no match found */
+    return (NULL);
+}
+
+/*******************************************************************************
+**
+** Function         l2cu_get_conn_role
+**
+** Description      Determine the desired role (master or slave) of a link.
+**                  If already got a slave link, this one must be a master. If
+**                  already got at least 1 link where we are the master, make this
+**                  also a master.
+**
+** Returns          HCI_ROLE_MASTER or HCI_ROLE_SLAVE
+**
+*******************************************************************************/
+UINT8 l2cu_get_conn_role (tL2C_LCB *p_this_lcb)
+{
+    return l2cb.desire_role;
+}
+
+/*******************************************************************************
+**
+** Function         l2c_is_cmd_rejected
+**
+** Description      Checks if cmd_code is command or response
+**                  If a command it will be rejected per spec.
+**                  This function is used when a illegal packet length is detected
+**
+** Returns          BOOLEAN - TRUE if cmd_code is a command and it is rejected,
+**                            FALSE if response code. (command not rejected)
+**
+*******************************************************************************/
+BOOLEAN l2c_is_cmd_rejected (UINT8 cmd_code, UINT8 id, tL2C_LCB *p_lcb)
+{
+    switch(cmd_code)
+    {
+    case L2CAP_CMD_CONN_REQ:
+    case L2CAP_CMD_CONFIG_REQ:
+    case L2CAP_CMD_DISC_REQ:
+    case L2CAP_CMD_ECHO_REQ:
+    case L2CAP_CMD_INFO_REQ:
+    case L2CAP_CMD_AMP_CONN_REQ:
+    case L2CAP_CMD_AMP_MOVE_REQ:
+    case L2CAP_CMD_BLE_UPDATE_REQ:
+        l2cu_send_peer_cmd_reject (p_lcb, L2CAP_CMD_REJ_MTU_EXCEEDED, id, L2CAP_DEFAULT_MTU, 0);
+        L2CAP_TRACE_WARNING ("Dumping first Command (%d)", cmd_code);
+        return TRUE;
+
+    default:    /* Otherwise a response */
+        return FALSE;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         l2cu_build_header
+**
+** Description      Builds the L2CAP command packet header
+**
+** Returns          Pointer to allocated packet or NULL if no resources
+**
+*******************************************************************************/
+BT_HDR *l2cu_build_header (tL2C_LCB *p_lcb, UINT16 len, UINT8 cmd, UINT8 id)
+{
+    BT_HDR  *p_buf = (BT_HDR *)osi_malloc(L2CAP_CMD_BUF_SIZE);
+    UINT8   *p;
+
+    p_buf->offset = L2CAP_SEND_CMD_OFFSET;
+    p_buf->len = len + HCI_DATA_PREAMBLE_SIZE + L2CAP_PKT_OVERHEAD + L2CAP_CMD_OVERHEAD;
+    p = (UINT8 *)(p_buf + 1) + L2CAP_SEND_CMD_OFFSET;
+
+    /* Put in HCI header - handle + pkt boundary */
+#if (BLE_INCLUDED == TRUE)
+    if (p_lcb->transport == BT_TRANSPORT_LE)
+    {
+        UINT16_TO_STREAM (p, (p_lcb->handle | (L2CAP_PKT_START_NON_FLUSHABLE << L2CAP_PKT_TYPE_SHIFT)));
+    }
+    else
+#endif
+    {
+#if (L2CAP_NON_FLUSHABLE_PB_INCLUDED == TRUE)
+        UINT16_TO_STREAM (p, p_lcb->handle | l2cb.non_flushable_pbf);
+#else
+        UINT16_TO_STREAM (p, (p_lcb->handle | (L2CAP_PKT_START << L2CAP_PKT_TYPE_SHIFT)));
+#endif
+    }
+
+    UINT16_TO_STREAM (p, len + L2CAP_PKT_OVERHEAD + L2CAP_CMD_OVERHEAD);
+    UINT16_TO_STREAM (p, len + L2CAP_CMD_OVERHEAD);
+
+#if (BLE_INCLUDED == TRUE)
+    if (p_lcb->transport == BT_TRANSPORT_LE)
+    {
+
+        UINT16_TO_STREAM (p, L2CAP_BLE_SIGNALLING_CID);
+    }
+    else
+#endif
+    {
+        UINT16_TO_STREAM (p, L2CAP_SIGNALLING_CID);
+    }
+
+    /* Put in L2CAP command header */
+    UINT8_TO_STREAM  (p, cmd);
+    UINT8_TO_STREAM  (p, id);
+    UINT16_TO_STREAM (p, len);
+
+    return (p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         l2cu_adj_id
+**
+** Description      Checks for valid ID based on specified mask
+**                  and adjusts the id if invalid.
+**
+** Returns          void
+**
+*******************************************************************************/
+void l2cu_adj_id (tL2C_LCB *p_lcb, UINT8 adj_mask)
+{
+    if ((adj_mask & L2CAP_ADJ_ZERO_ID) && !p_lcb->id)
+    {
+        p_lcb->id++;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         l2cu_send_peer_cmd_reject
+**
+** Description      Build and send an L2CAP "command reject" message
+**                  to the peer.
+**
+** Returns          void
+**
+*******************************************************************************/
+void l2cu_send_peer_cmd_reject (tL2C_LCB *p_lcb, UINT16 reason, UINT8 rem_id,
+                                UINT16 p1, UINT16 p2)
+{
+    UINT16  param_len;
+    BT_HDR  *p_buf;
+    UINT8   *p;
+
+    /* Put in L2CAP packet header */
+    if (reason == L2CAP_CMD_REJ_MTU_EXCEEDED)
+        param_len = 2;
+    else if (reason == L2CAP_CMD_REJ_INVALID_CID)
+        param_len = 4;
+    else
+        param_len = 0;
+
+    if ((p_buf = l2cu_build_header (p_lcb, (UINT16) (L2CAP_CMD_REJECT_LEN + param_len), L2CAP_CMD_REJECT, rem_id)) == NULL )
+    {
+        L2CAP_TRACE_WARNING ("L2CAP - no buffer cmd_rej");
+        return;
+    }
+
+    p = (UINT8 *)(p_buf + 1) + L2CAP_SEND_CMD_OFFSET + HCI_DATA_PREAMBLE_SIZE +
+                               L2CAP_PKT_OVERHEAD + L2CAP_CMD_OVERHEAD;
+
+    UINT16_TO_STREAM (p, reason);
+
+    if (param_len >= 2)
+        UINT16_TO_STREAM (p, p1);
+
+    if (param_len >= 4)
+        UINT16_TO_STREAM (p, p2);
+
+    l2c_link_check_send_pkts (p_lcb, NULL, p_buf);
+}
+
+
+/*******************************************************************************
+**
+** Function         l2cu_send_peer_connect_req
+**
+** Description      Build and send an L2CAP "connection request" message
+**                  to the peer.
+**
+** Returns          void
+**
+*******************************************************************************/
+void l2cu_send_peer_connect_req (tL2C_CCB *p_ccb)
+{
+    BT_HDR  *p_buf;
+    UINT8   *p;
+
+    /* Create an identifier for this packet */
+    p_ccb->p_lcb->id++;
+    l2cu_adj_id(p_ccb->p_lcb, L2CAP_ADJ_ID);
+
+    p_ccb->local_id = p_ccb->p_lcb->id;
+
+    if ((p_buf = l2cu_build_header (p_ccb->p_lcb, L2CAP_CONN_REQ_LEN, L2CAP_CMD_CONN_REQ,
+                                    p_ccb->local_id)) == NULL)
+    {
+        L2CAP_TRACE_WARNING ("L2CAP - no buffer for conn_req");
+        return;
+    }
+
+    p = (UINT8 *)(p_buf + 1) + L2CAP_SEND_CMD_OFFSET+HCI_DATA_PREAMBLE_SIZE +
+        L2CAP_PKT_OVERHEAD + L2CAP_CMD_OVERHEAD;
+
+    UINT16_TO_STREAM (p, p_ccb->p_rcb->real_psm);
+    UINT16_TO_STREAM (p, p_ccb->local_cid);
+
+    l2c_link_check_send_pkts (p_ccb->p_lcb, NULL, p_buf);
+}
+
+
+/*******************************************************************************
+**
+** Function         l2cu_send_peer_connect_rsp
+**
+** Description      Build and send an L2CAP "connection response" message
+**                  to the peer.
+**
+** Returns          void
+**
+*******************************************************************************/
+void l2cu_send_peer_connect_rsp (tL2C_CCB *p_ccb, UINT16 result, UINT16 status)
+{
+    BT_HDR  *p_buf;
+    UINT8   *p;
+
+    if (result == L2CAP_CONN_PENDING)
+    {
+        /* if we already sent pending response */
+        if (p_ccb->flags & CCB_FLAG_SENT_PENDING)
+            return;
+        else
+            p_ccb->flags |= CCB_FLAG_SENT_PENDING;
+    }
+
+    if ((p_buf=l2cu_build_header(p_ccb->p_lcb, L2CAP_CONN_RSP_LEN, L2CAP_CMD_CONN_RSP, p_ccb->remote_id)) == NULL)
+    {
+        L2CAP_TRACE_WARNING ("L2CAP - no buffer for conn_rsp");
+        return;
+    }
+
+    p = (UINT8 *)(p_buf + 1) + L2CAP_SEND_CMD_OFFSET+HCI_DATA_PREAMBLE_SIZE +
+        L2CAP_PKT_OVERHEAD + L2CAP_CMD_OVERHEAD;
+
+    UINT16_TO_STREAM (p, p_ccb->local_cid);
+    UINT16_TO_STREAM (p, p_ccb->remote_cid);
+    UINT16_TO_STREAM (p, result);
+    UINT16_TO_STREAM (p, status);
+
+    l2c_link_check_send_pkts (p_ccb->p_lcb, NULL, p_buf);
+}
+
+
+/*******************************************************************************
+**
+** Function         l2cu_reject_connection
+**
+** Description      Build and send an L2CAP "connection response neg" message
+**                  to the peer. This function is called when there is no peer
+**                  CCB (non-existant PSM or no resources).
+**
+** Returns          void
+**
+*******************************************************************************/
+void l2cu_reject_connection (tL2C_LCB *p_lcb, UINT16 remote_cid, UINT8 rem_id, UINT16 result)
+{
+    BT_HDR  *p_buf;
+    UINT8   *p;
+
+    if ((p_buf = l2cu_build_header(p_lcb, L2CAP_CONN_RSP_LEN, L2CAP_CMD_CONN_RSP, rem_id)) == NULL )
+    {
+        L2CAP_TRACE_WARNING ("L2CAP - no buffer for conn_req");
+        return;
+    }
+
+    p = (UINT8 *)(p_buf + 1) + L2CAP_SEND_CMD_OFFSET+HCI_DATA_PREAMBLE_SIZE + L2CAP_PKT_OVERHEAD + L2CAP_CMD_OVERHEAD;
+
+    UINT16_TO_STREAM (p, 0);                    /* Local CID of 0   */
+    UINT16_TO_STREAM (p, remote_cid);
+    UINT16_TO_STREAM (p, result);
+    UINT16_TO_STREAM (p, 0);                    /* Status of 0      */
+
+    l2c_link_check_send_pkts (p_lcb, NULL, p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         l2cu_send_peer_config_req
+**
+** Description      Build and send an L2CAP "configuration request" message
+**                  to the peer.
+**
+** Returns          void
+**
+*******************************************************************************/
+void l2cu_send_peer_config_req (tL2C_CCB *p_ccb, tL2CAP_CFG_INFO *p_cfg)
+{
+    BT_HDR  *p_buf;
+    UINT16  cfg_len=0;
+    UINT8   *p;
+
+    /* Create an identifier for this packet */
+    p_ccb->p_lcb->id++;
+    l2cu_adj_id(p_ccb->p_lcb, L2CAP_ADJ_ID);
+
+    p_ccb->local_id = p_ccb->p_lcb->id;
+
+    if (p_cfg->mtu_present)
+        cfg_len += L2CAP_CFG_MTU_OPTION_LEN + L2CAP_CFG_OPTION_OVERHEAD;
+    if (p_cfg->flush_to_present)
+        cfg_len += L2CAP_CFG_FLUSH_OPTION_LEN + L2CAP_CFG_OPTION_OVERHEAD;
+    if (p_cfg->qos_present)
+        cfg_len += L2CAP_CFG_QOS_OPTION_LEN + L2CAP_CFG_OPTION_OVERHEAD;
+    if (p_cfg->fcr_present)
+        cfg_len += L2CAP_CFG_FCR_OPTION_LEN + L2CAP_CFG_OPTION_OVERHEAD;
+    if (p_cfg->fcs_present)
+        cfg_len += L2CAP_CFG_FCS_OPTION_LEN + L2CAP_CFG_OPTION_OVERHEAD;
+    if (p_cfg->ext_flow_spec_present)
+        cfg_len += L2CAP_CFG_EXT_FLOW_OPTION_LEN + L2CAP_CFG_OPTION_OVERHEAD;
+
+    if ((p_buf = l2cu_build_header (p_ccb->p_lcb, (UINT16) (L2CAP_CONFIG_REQ_LEN + cfg_len),
+        L2CAP_CMD_CONFIG_REQ, p_ccb->local_id)) == NULL )
+    {
+        L2CAP_TRACE_WARNING ("L2CAP - no buffer for conn_req");
+        return;
+    }
+
+    p = (UINT8 *)(p_buf + 1) + L2CAP_SEND_CMD_OFFSET + HCI_DATA_PREAMBLE_SIZE +
+                               L2CAP_PKT_OVERHEAD + L2CAP_CMD_OVERHEAD;
+
+    UINT16_TO_STREAM (p, p_ccb->remote_cid);
+    UINT16_TO_STREAM (p, p_cfg->flags);                    /* Flags (continuation) */
+
+    /* Now, put the options */
+    if (p_cfg->mtu_present)
+    {
+        UINT8_TO_STREAM  (p, L2CAP_CFG_TYPE_MTU);
+        UINT8_TO_STREAM  (p, L2CAP_CFG_MTU_OPTION_LEN);
+        UINT16_TO_STREAM (p, p_cfg->mtu);
+    }
+    if (p_cfg->flush_to_present)
+    {
+        UINT8_TO_STREAM  (p, L2CAP_CFG_TYPE_FLUSH_TOUT);
+        UINT8_TO_STREAM  (p, L2CAP_CFG_FLUSH_OPTION_LEN);
+        UINT16_TO_STREAM (p, p_cfg->flush_to);
+    }
+    if (p_cfg->qos_present)
+    {
+        UINT8_TO_STREAM  (p, L2CAP_CFG_TYPE_QOS);
+        UINT8_TO_STREAM  (p, L2CAP_CFG_QOS_OPTION_LEN);
+        UINT8_TO_STREAM  (p, p_cfg->qos.qos_flags);
+        UINT8_TO_STREAM  (p, p_cfg->qos.service_type);
+        UINT32_TO_STREAM (p, p_cfg->qos.token_rate);
+        UINT32_TO_STREAM (p, p_cfg->qos.token_bucket_size);
+        UINT32_TO_STREAM (p, p_cfg->qos.peak_bandwidth);
+        UINT32_TO_STREAM (p, p_cfg->qos.latency);
+        UINT32_TO_STREAM (p, p_cfg->qos.delay_variation);
+    }
+    if (p_cfg->fcr_present)
+    {
+        UINT8_TO_STREAM  (p, L2CAP_CFG_TYPE_FCR);
+        UINT8_TO_STREAM  (p, L2CAP_CFG_FCR_OPTION_LEN);
+        UINT8_TO_STREAM  (p, p_cfg->fcr.mode);
+        UINT8_TO_STREAM  (p, p_cfg->fcr.tx_win_sz);
+        UINT8_TO_STREAM  (p, p_cfg->fcr.max_transmit);
+        UINT16_TO_STREAM (p, p_cfg->fcr.rtrans_tout);
+        UINT16_TO_STREAM (p, p_cfg->fcr.mon_tout);
+        UINT16_TO_STREAM (p, p_cfg->fcr.mps);
+    }
+
+    if (p_cfg->fcs_present)
+    {
+        UINT8_TO_STREAM  (p, L2CAP_CFG_TYPE_FCS);
+        UINT8_TO_STREAM  (p, L2CAP_CFG_FCS_OPTION_LEN);
+        UINT8_TO_STREAM  (p, p_cfg->fcs);
+    }
+
+    if (p_cfg->ext_flow_spec_present)
+    {
+        UINT8_TO_STREAM  (p, L2CAP_CFG_TYPE_EXT_FLOW);
+        UINT8_TO_STREAM  (p, L2CAP_CFG_EXT_FLOW_OPTION_LEN);
+        UINT8_TO_STREAM  (p, p_cfg->ext_flow_spec.id);
+        UINT8_TO_STREAM  (p, p_cfg->ext_flow_spec.stype);
+        UINT16_TO_STREAM (p, p_cfg->ext_flow_spec.max_sdu_size);
+        UINT32_TO_STREAM (p, p_cfg->ext_flow_spec.sdu_inter_time);
+        UINT32_TO_STREAM (p, p_cfg->ext_flow_spec.access_latency);
+        UINT32_TO_STREAM (p, p_cfg->ext_flow_spec.flush_timeout);
+    }
+
+    l2c_link_check_send_pkts (p_ccb->p_lcb, NULL, p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         l2cu_send_peer_config_rsp
+**
+** Description      Build and send an L2CAP "configuration response" message
+**                  to the peer.
+**
+** Returns          void
+**
+*******************************************************************************/
+void l2cu_send_peer_config_rsp (tL2C_CCB *p_ccb, tL2CAP_CFG_INFO *p_cfg)
+{
+    BT_HDR  *p_buf;
+    UINT16  cfg_len = 0;
+    UINT8   *p;
+
+    /* Create an identifier for this packet */
+    if (p_cfg->mtu_present)
+        cfg_len += L2CAP_CFG_MTU_OPTION_LEN + L2CAP_CFG_OPTION_OVERHEAD;
+    if (p_cfg->flush_to_present)
+        cfg_len += L2CAP_CFG_FLUSH_OPTION_LEN + L2CAP_CFG_OPTION_OVERHEAD;
+    if (p_cfg->qos_present)
+        cfg_len += L2CAP_CFG_QOS_OPTION_LEN + L2CAP_CFG_OPTION_OVERHEAD;
+    if (p_cfg->fcr_present)
+        cfg_len += L2CAP_CFG_FCR_OPTION_LEN + L2CAP_CFG_OPTION_OVERHEAD;
+    if (p_cfg->ext_flow_spec_present)
+        cfg_len += L2CAP_CFG_EXT_FLOW_OPTION_LEN + L2CAP_CFG_OPTION_OVERHEAD;
+
+    if ((p_buf = l2cu_build_header (p_ccb->p_lcb, (UINT16)(L2CAP_CONFIG_RSP_LEN + cfg_len),
+                                    L2CAP_CMD_CONFIG_RSP, p_ccb->remote_id)) == NULL )
+    {
+        L2CAP_TRACE_WARNING ("L2CAP - no buffer for conn_req");
+        return;
+    }
+
+    p = (UINT8 *)(p_buf + 1) + L2CAP_SEND_CMD_OFFSET+HCI_DATA_PREAMBLE_SIZE + L2CAP_PKT_OVERHEAD + L2CAP_CMD_OVERHEAD;
+
+    UINT16_TO_STREAM (p, p_ccb->remote_cid);
+    UINT16_TO_STREAM (p, p_cfg->flags);           /* Flags (continuation) Must match request */
+    UINT16_TO_STREAM (p, p_cfg->result);
+
+    /* Now, put the options */
+    if (p_cfg->mtu_present)
+    {
+        UINT8_TO_STREAM  (p, L2CAP_CFG_TYPE_MTU);
+        UINT8_TO_STREAM  (p, L2CAP_CFG_MTU_OPTION_LEN);
+        UINT16_TO_STREAM (p, p_cfg->mtu);
+    }
+    if (p_cfg->flush_to_present)
+    {
+        UINT8_TO_STREAM  (p, L2CAP_CFG_TYPE_FLUSH_TOUT);
+        UINT8_TO_STREAM  (p, L2CAP_CFG_FLUSH_OPTION_LEN);
+        UINT16_TO_STREAM (p, p_cfg->flush_to);
+    }
+    if (p_cfg->qos_present)
+    {
+        UINT8_TO_STREAM  (p, L2CAP_CFG_TYPE_QOS);
+        UINT8_TO_STREAM  (p, L2CAP_CFG_QOS_OPTION_LEN);
+        UINT8_TO_STREAM  (p, p_cfg->qos.qos_flags);
+        UINT8_TO_STREAM  (p, p_cfg->qos.service_type);
+        UINT32_TO_STREAM (p, p_cfg->qos.token_rate);
+        UINT32_TO_STREAM (p, p_cfg->qos.token_bucket_size);
+        UINT32_TO_STREAM (p, p_cfg->qos.peak_bandwidth);
+        UINT32_TO_STREAM (p, p_cfg->qos.latency);
+        UINT32_TO_STREAM (p, p_cfg->qos.delay_variation);
+    }
+    if (p_cfg->fcr_present)
+    {
+        UINT8_TO_STREAM  (p, L2CAP_CFG_TYPE_FCR);
+        UINT8_TO_STREAM  (p, L2CAP_CFG_FCR_OPTION_LEN);
+        UINT8_TO_STREAM  (p, p_cfg->fcr.mode);
+        UINT8_TO_STREAM  (p, p_cfg->fcr.tx_win_sz);
+        UINT8_TO_STREAM  (p, p_cfg->fcr.max_transmit);
+        UINT16_TO_STREAM (p, p_ccb->our_cfg.fcr.rtrans_tout);
+        UINT16_TO_STREAM (p, p_ccb->our_cfg.fcr.mon_tout);
+        UINT16_TO_STREAM (p, p_cfg->fcr.mps);
+    }
+
+    if (p_cfg->ext_flow_spec_present)
+    {
+        UINT8_TO_STREAM  (p, L2CAP_CFG_TYPE_EXT_FLOW);
+        UINT8_TO_STREAM  (p, L2CAP_CFG_EXT_FLOW_OPTION_LEN);
+        UINT8_TO_STREAM  (p, p_cfg->ext_flow_spec.id);
+        UINT8_TO_STREAM  (p, p_cfg->ext_flow_spec.stype);
+        UINT16_TO_STREAM (p, p_cfg->ext_flow_spec.max_sdu_size);
+        UINT32_TO_STREAM (p, p_cfg->ext_flow_spec.sdu_inter_time);
+        UINT32_TO_STREAM (p, p_cfg->ext_flow_spec.access_latency);
+        UINT32_TO_STREAM (p, p_cfg->ext_flow_spec.flush_timeout);
+    }
+
+    l2c_link_check_send_pkts (p_ccb->p_lcb, NULL, p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         l2cu_send_peer_config_rej
+**
+** Description      Build and send an L2CAP "configuration reject" message
+**                  to the peer.
+**
+** Returns          void
+**
+*******************************************************************************/
+void l2cu_send_peer_config_rej (tL2C_CCB *p_ccb, UINT8 *p_data, UINT16 data_len, UINT16 rej_len)
+{
+    UINT16  len, cfg_len, buf_space, len1;
+    UINT8   *p, *p_hci_len, *p_data_end;
+    UINT8   cfg_code;
+
+    L2CAP_TRACE_DEBUG("l2cu_send_peer_config_rej: data_len=%d, rej_len=%d", data_len, rej_len);
+
+
+    len = BT_HDR_SIZE + HCI_DATA_PREAMBLE_SIZE + L2CAP_PKT_OVERHEAD + L2CAP_CMD_OVERHEAD + L2CAP_CONFIG_RSP_LEN;
+    len1 = 0xFFFF - len;
+    if (rej_len > len1)
+    {
+        L2CAP_TRACE_ERROR ("L2CAP - cfg_rej pkt size exceeds buffer design max limit.");
+        return;
+    }
+
+    BT_HDR *p_buf = (BT_HDR *)osi_malloc(len + rej_len);
+    p_buf->offset = L2CAP_SEND_CMD_OFFSET;
+    p = (UINT8 *)(p_buf + 1) + L2CAP_SEND_CMD_OFFSET;
+
+    /* Put in HCI header - handle + pkt boundary */
+#if (L2CAP_NON_FLUSHABLE_PB_INCLUDED == TRUE)
+    if (HCI_NON_FLUSHABLE_PB_SUPPORTED(BTM_ReadLocalFeatures ()))
+    {
+        UINT16_TO_STREAM (p, (p_ccb->p_lcb->handle | (L2CAP_PKT_START_NON_FLUSHABLE << L2CAP_PKT_TYPE_SHIFT)));
+    }
+    else
+#endif
+    {
+        UINT16_TO_STREAM (p, (p_ccb->p_lcb->handle | (L2CAP_PKT_START << L2CAP_PKT_TYPE_SHIFT)));
+    }
+
+    /* Remember the HCI header length position, and save space for it */
+    p_hci_len = p;
+    p += 2;
+
+    /* Put in L2CAP packet header */
+    UINT16_TO_STREAM (p, L2CAP_CMD_OVERHEAD + L2CAP_CONFIG_RSP_LEN + rej_len);
+    UINT16_TO_STREAM (p, L2CAP_SIGNALLING_CID);
+
+    /* Put in L2CAP command header */
+    UINT8_TO_STREAM  (p, L2CAP_CMD_CONFIG_RSP);
+    UINT8_TO_STREAM  (p, p_ccb->remote_id);
+
+    UINT16_TO_STREAM (p, L2CAP_CONFIG_RSP_LEN + rej_len);
+
+    UINT16_TO_STREAM (p, p_ccb->remote_cid);
+    UINT16_TO_STREAM (p, 0);                    /* Flags = 0 (no continuation) */
+    UINT16_TO_STREAM (p, L2CAP_CFG_UNKNOWN_OPTIONS);
+
+    buf_space = rej_len;
+
+    /* Now, put the rejected options */
+    p_data_end = p_data + data_len;
+    while (p_data < p_data_end)
+    {
+        cfg_code = *p_data;
+        cfg_len = *(p_data + 1);
+
+        switch (cfg_code & 0x7F)
+        {
+            /* skip known options */
+            case L2CAP_CFG_TYPE_MTU:
+            case L2CAP_CFG_TYPE_FLUSH_TOUT:
+            case L2CAP_CFG_TYPE_QOS:
+                p_data += cfg_len + L2CAP_CFG_OPTION_OVERHEAD;
+                break;
+
+            /* unknown options; copy into rsp if not hints */
+            default:
+                /* sanity check option length */
+                if ((cfg_len + L2CAP_CFG_OPTION_OVERHEAD) <= data_len)
+                {
+                    if ((cfg_code & 0x80) == 0)
+                    {
+                        if (buf_space >= (cfg_len + L2CAP_CFG_OPTION_OVERHEAD))
+                        {
+                            memcpy(p, p_data, cfg_len + L2CAP_CFG_OPTION_OVERHEAD);
+                            p += cfg_len + L2CAP_CFG_OPTION_OVERHEAD;
+                            buf_space -= (cfg_len + L2CAP_CFG_OPTION_OVERHEAD);
+                        }
+                        else
+                        {
+                            L2CAP_TRACE_WARNING("L2CAP - cfg_rej exceeds allocated buffer");
+                            p_data = p_data_end; /* force loop exit */
+                            break;
+                        }
+                    }
+                    p_data += cfg_len + L2CAP_CFG_OPTION_OVERHEAD;
+                }
+                /* bad length; force loop exit */
+                else
+                {
+                    p_data = p_data_end;
+                }
+                break;
+        }
+    }
+
+    len = (UINT16) (p - p_hci_len - 2);
+    UINT16_TO_STREAM (p_hci_len, len);
+
+    p_buf->len = len + 4;
+
+    L2CAP_TRACE_DEBUG ("L2CAP - cfg_rej pkt hci_len=%d, l2cap_len=%d",
+                        len, (L2CAP_CMD_OVERHEAD+L2CAP_CONFIG_RSP_LEN+rej_len));
+
+    l2c_link_check_send_pkts (p_ccb->p_lcb, NULL, p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         l2cu_send_peer_disc_req
+**
+** Description      Build and send an L2CAP "disconnect request" message
+**                  to the peer.
+**
+** Returns          void
+**
+*******************************************************************************/
+void l2cu_send_peer_disc_req (tL2C_CCB *p_ccb)
+{
+    BT_HDR  *p_buf, *p_buf2;
+    UINT8   *p;
+
+    if ((!p_ccb) || (p_ccb->p_lcb == NULL))
+    {
+        L2CAP_TRACE_ERROR ("%s L2CAP - ccb or lcb invalid", __func__);
+        return;
+    }
+
+    /* Create an identifier for this packet */
+    p_ccb->p_lcb->id++;
+    l2cu_adj_id(p_ccb->p_lcb, L2CAP_ADJ_ID);
+
+    p_ccb->local_id = p_ccb->p_lcb->id;
+
+    if ((p_buf = l2cu_build_header(p_ccb->p_lcb, L2CAP_DISC_REQ_LEN, L2CAP_CMD_DISC_REQ, p_ccb->local_id)) == NULL)
+    {
+        L2CAP_TRACE_WARNING ("L2CAP - no buffer for disc_req");
+        return;
+    }
+
+    p = (UINT8 *)(p_buf + 1) + L2CAP_SEND_CMD_OFFSET + HCI_DATA_PREAMBLE_SIZE + L2CAP_PKT_OVERHEAD + L2CAP_CMD_OVERHEAD;
+
+    UINT16_TO_STREAM (p, p_ccb->remote_cid);
+    UINT16_TO_STREAM (p, p_ccb->local_cid);
+
+    /* Move all queued data packets to the LCB. In FCR mode, assume the higher
+       layer checks that all buffers are sent before disconnecting.
+    */
+    if (p_ccb->peer_cfg.fcr.mode == L2CAP_FCR_BASIC_MODE)
+    {
+        while ((p_buf2 = (BT_HDR *)fixed_queue_try_dequeue(p_ccb->xmit_hold_q)) != NULL)
+        {
+            l2cu_set_acl_hci_header (p_buf2, p_ccb);
+            l2c_link_check_send_pkts (p_ccb->p_lcb, p_ccb, p_buf2);
+        }
+    }
+
+    l2c_link_check_send_pkts (p_ccb->p_lcb, NULL, p_buf);
+}
+
+
+/*******************************************************************************
+**
+** Function         l2cu_send_peer_disc_rsp
+**
+** Description      Build and send an L2CAP "disconnect response" message
+**                  to the peer.
+**
+**                  This function is passed the parameters for the disconnect
+**                  response instead of the CCB address, as it may be called
+**                  to send a disconnect response when there is no CCB.
+**
+** Returns          void
+**
+*******************************************************************************/
+void l2cu_send_peer_disc_rsp (tL2C_LCB *p_lcb, UINT8 remote_id, UINT16 local_cid,
+                              UINT16 remote_cid)
+{
+    BT_HDR  *p_buf;
+    UINT8   *p;
+
+    if ((p_buf=l2cu_build_header(p_lcb, L2CAP_DISC_RSP_LEN, L2CAP_CMD_DISC_RSP, remote_id)) == NULL)
+    {
+        L2CAP_TRACE_WARNING ("L2CAP - no buffer for disc_rsp");
+        return;
+    }
+
+    p = (UINT8 *)(p_buf + 1) + L2CAP_SEND_CMD_OFFSET + HCI_DATA_PREAMBLE_SIZE + L2CAP_PKT_OVERHEAD + L2CAP_CMD_OVERHEAD;
+
+    UINT16_TO_STREAM (p, local_cid);
+    UINT16_TO_STREAM (p, remote_cid);
+
+    l2c_link_check_send_pkts (p_lcb, NULL, p_buf);
+}
+
+
+/*******************************************************************************
+**
+** Function         l2cu_send_peer_echo_req
+**
+** Description      Build and send an L2CAP "echo request" message
+**                  to the peer. Note that we do not currently allow
+**                  data in the echo request.
+**
+** Returns          void
+**
+*******************************************************************************/
+void l2cu_send_peer_echo_req (tL2C_LCB *p_lcb, UINT8 *p_data, UINT16 data_len)
+{
+    BT_HDR  *p_buf;
+    UINT8   *p;
+
+    p_lcb->id++;
+    l2cu_adj_id(p_lcb, L2CAP_ADJ_ZERO_ID);  /* check for wrap to '0' */
+
+    if ((p_buf = l2cu_build_header(p_lcb, (UINT16) (L2CAP_ECHO_REQ_LEN + data_len), L2CAP_CMD_ECHO_REQ, p_lcb->id)) == NULL)
+    {
+        L2CAP_TRACE_WARNING ("L2CAP - no buffer for echo_req");
+        return;
+    }
+
+    p = (UINT8 *)(p_buf + 1) + L2CAP_SEND_CMD_OFFSET + HCI_DATA_PREAMBLE_SIZE + L2CAP_PKT_OVERHEAD + L2CAP_CMD_OVERHEAD;
+
+    if (data_len)
+    {
+        ARRAY_TO_STREAM  (p, p_data, data_len);
+    }
+
+    l2c_link_check_send_pkts (p_lcb, NULL, p_buf);
+}
+
+
+/*******************************************************************************
+**
+** Function         l2cu_send_peer_echo_rsp
+**
+** Description      Build and send an L2CAP "echo response" message
+**                  to the peer.
+**
+** Returns          void
+**
+*******************************************************************************/
+void l2cu_send_peer_echo_rsp (tL2C_LCB *p_lcb, UINT8 id, UINT8 *p_data, UINT16 data_len)
+{
+    BT_HDR  *p_buf;
+    UINT8   *p;
+    UINT16   maxlen;
+    /* Filter out duplicate IDs or if available buffers are low (intruder checking) */
+    if (!id || id == p_lcb->cur_echo_id)
+    {
+        /* Dump this request since it is illegal */
+        L2CAP_TRACE_WARNING ("L2CAP ignoring duplicate echo request (%d)", id);
+        return;
+    }
+    else
+        p_lcb->cur_echo_id = id;
+
+    uint16_t acl_data_size = controller_get_interface()->get_acl_data_size_classic();
+    uint16_t acl_packet_size = controller_get_interface()->get_acl_packet_size_classic();
+    /* Don't return data if it does not fit in ACL and L2CAP MTU */
+    maxlen = (L2CAP_CMD_BUF_SIZE > acl_packet_size) ?
+               acl_data_size : (UINT16)L2CAP_CMD_BUF_SIZE;
+    maxlen -= (UINT16)(BT_HDR_SIZE + HCI_DATA_PREAMBLE_SIZE + L2CAP_PKT_OVERHEAD +
+                L2CAP_CMD_OVERHEAD + L2CAP_ECHO_RSP_LEN);
+
+    if (data_len > maxlen)
+        data_len = 0;
+
+    if ((p_buf = l2cu_build_header (p_lcb, (UINT16)(L2CAP_ECHO_RSP_LEN + data_len), L2CAP_CMD_ECHO_RSP, id)) == NULL)
+    {
+        L2CAP_TRACE_WARNING ("L2CAP - no buffer for echo_rsp");
+        return;
+    }
+
+    p = (UINT8 *)(p_buf + 1) + L2CAP_SEND_CMD_OFFSET + HCI_DATA_PREAMBLE_SIZE +
+                               L2CAP_PKT_OVERHEAD + L2CAP_CMD_OVERHEAD;
+
+    if (data_len)
+    {
+        ARRAY_TO_STREAM  (p, p_data, data_len);
+    }
+
+    l2c_link_check_send_pkts (p_lcb, NULL, p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         l2cu_send_peer_info_req
+**
+** Description      Build and send an L2CAP "info request" message
+**                  to the peer.
+** Returns          void
+**
+*******************************************************************************/
+void l2cu_send_peer_info_req (tL2C_LCB *p_lcb, UINT16 info_type)
+{
+    BT_HDR  *p_buf;
+    UINT8   *p;
+
+    /* check for wrap and/or BRCM ID */
+    p_lcb->id++;
+    l2cu_adj_id(p_lcb, L2CAP_ADJ_ID);
+
+    if ((p_buf = l2cu_build_header(p_lcb, 2, L2CAP_CMD_INFO_REQ, p_lcb->id)) == NULL)
+    {
+        L2CAP_TRACE_WARNING ("L2CAP - no buffer for info_req");
+        return;
+    }
+
+    L2CAP_TRACE_EVENT ("l2cu_send_peer_info_req: type 0x%04x", info_type);
+
+    p = (UINT8 *)(p_buf + 1) + L2CAP_SEND_CMD_OFFSET+HCI_DATA_PREAMBLE_SIZE +
+        L2CAP_PKT_OVERHEAD + L2CAP_CMD_OVERHEAD;
+
+    UINT16_TO_STREAM (p, info_type);
+
+    p_lcb->w4_info_rsp = TRUE;
+    alarm_set_on_queue(p_lcb->info_resp_timer, L2CAP_WAIT_INFO_RSP_TIMEOUT_MS,
+                       l2c_info_resp_timer_timeout, p_lcb,
+                       btu_general_alarm_queue);
+
+    l2c_link_check_send_pkts (p_lcb, NULL, p_buf);
+}
+
+
+/*******************************************************************************
+**
+** Function         l2cu_send_peer_info_rsp
+**
+** Description      Build and send an L2CAP "info response" message
+**                  to the peer.
+**
+** Returns          void
+**
+*******************************************************************************/
+void l2cu_send_peer_info_rsp (tL2C_LCB *p_lcb, UINT8 remote_id, UINT16 info_type)
+{
+    BT_HDR  *p_buf;
+    UINT8   *p;
+    UINT16   len = L2CAP_INFO_RSP_LEN;
+
+#if (L2CAP_CONFORMANCE_TESTING == TRUE)
+    if ((info_type == L2CAP_EXTENDED_FEATURES_INFO_TYPE)
+        && (l2cb.test_info_resp & (L2CAP_EXTFEA_ENH_RETRANS   | L2CAP_EXTFEA_STREAM_MODE |
+                                   L2CAP_EXTFEA_NO_CRC | L2CAP_EXTFEA_EXT_FLOW_SPEC |
+                                   L2CAP_EXTFEA_FIXED_CHNLS | L2CAP_EXTFEA_EXT_WINDOW |
+                                   L2CAP_EXTFEA_UCD_RECEPTION )) )
+#else
+    if ((info_type == L2CAP_EXTENDED_FEATURES_INFO_TYPE)
+        && (L2CAP_EXTFEA_SUPPORTED_MASK & (L2CAP_EXTFEA_ENH_RETRANS | L2CAP_EXTFEA_STREAM_MODE |
+                                           L2CAP_EXTFEA_NO_CRC |L2CAP_EXTFEA_FIXED_CHNLS |
+                                           L2CAP_EXTFEA_UCD_RECEPTION )) != 0 )
+#endif
+    {
+        len += L2CAP_EXTENDED_FEATURES_ARRAY_SIZE;
+    }
+    else if (info_type == L2CAP_FIXED_CHANNELS_INFO_TYPE)
+    {
+        len += L2CAP_FIXED_CHNL_ARRAY_SIZE;
+    }
+    else if (info_type == L2CAP_CONNLESS_MTU_INFO_TYPE)
+    {
+        len += L2CAP_CONNLESS_MTU_INFO_SIZE;
+    }
+
+    if ((p_buf = l2cu_build_header(p_lcb, len, L2CAP_CMD_INFO_RSP, remote_id)) == NULL)
+    {
+        L2CAP_TRACE_WARNING ("L2CAP - no buffer for info_rsp");
+        return;
+    }
+
+    p = (UINT8 *)(p_buf + 1) + L2CAP_SEND_CMD_OFFSET + HCI_DATA_PREAMBLE_SIZE +
+                               L2CAP_PKT_OVERHEAD + L2CAP_CMD_OVERHEAD;
+
+    UINT16_TO_STREAM (p, info_type);
+
+#if (L2CAP_CONFORMANCE_TESTING == TRUE)
+    if ((info_type == L2CAP_EXTENDED_FEATURES_INFO_TYPE)
+        && (l2cb.test_info_resp & ( L2CAP_EXTFEA_ENH_RETRANS | L2CAP_EXTFEA_STREAM_MODE
+                                  | L2CAP_EXTFEA_UCD_RECEPTION )) )
+#else
+    if ((info_type == L2CAP_EXTENDED_FEATURES_INFO_TYPE)
+        && (L2CAP_EXTFEA_SUPPORTED_MASK & ( L2CAP_EXTFEA_ENH_RETRANS | L2CAP_EXTFEA_STREAM_MODE
+                                          | L2CAP_EXTFEA_UCD_RECEPTION )) != 0 )
+#endif
+    {
+        UINT16_TO_STREAM (p, L2CAP_INFO_RESP_RESULT_SUCCESS);
+#if (BLE_INCLUDED == TRUE)
+        if (p_lcb->transport == BT_TRANSPORT_LE)
+        {
+            /* optional data are not added for now */
+            UINT32_TO_STREAM (p, L2CAP_BLE_EXTFEA_MASK);
+        }
+        else
+#endif
+        {
+#if L2CAP_CONFORMANCE_TESTING == TRUE
+        UINT32_TO_STREAM (p, l2cb.test_info_resp);
+#else
+#if (L2CAP_NUM_FIXED_CHNLS > 0)
+        UINT32_TO_STREAM (p, L2CAP_EXTFEA_SUPPORTED_MASK | L2CAP_EXTFEA_FIXED_CHNLS);
+#else
+        UINT32_TO_STREAM (p, L2CAP_EXTFEA_SUPPORTED_MASK);
+#endif
+#endif
+        }
+    }
+    else if (info_type == L2CAP_FIXED_CHANNELS_INFO_TYPE)
+    {
+        UINT16_TO_STREAM (p, L2CAP_INFO_RESP_RESULT_SUCCESS);
+        memset (p, 0, L2CAP_FIXED_CHNL_ARRAY_SIZE);
+
+        p[0] = L2CAP_FIXED_CHNL_SIG_BIT;
+
+        if ( L2CAP_EXTFEA_SUPPORTED_MASK & L2CAP_EXTFEA_UCD_RECEPTION )
+        	p[0] |= L2CAP_FIXED_CHNL_CNCTLESS_BIT;
+
+#if (L2CAP_NUM_FIXED_CHNLS > 0)
+        {
+            int xx;
+
+            for (xx = 0; xx < L2CAP_NUM_FIXED_CHNLS; xx++)
+            {
+                /* Skip fixed channels not used on BR/EDR-ACL link */
+                if((xx >= L2CAP_ATT_CID - L2CAP_FIRST_FIXED_CHNL) &&
+                    (xx <= L2CAP_SMP_CID - L2CAP_FIRST_FIXED_CHNL))
+                    continue;
+
+                if (l2cb.fixed_reg[xx].pL2CA_FixedConn_Cb != NULL)
+                   p[(xx + L2CAP_FIRST_FIXED_CHNL) / 8] |= 1 << ((xx + L2CAP_FIRST_FIXED_CHNL) % 8);
+            }
+        }
+#endif
+    }
+    else if (info_type == L2CAP_CONNLESS_MTU_INFO_TYPE)
+    {
+        UINT16_TO_STREAM (p, L2CAP_INFO_RESP_RESULT_SUCCESS);
+        UINT16_TO_STREAM (p, L2CAP_UCD_MTU);
+    }
+    else
+    {
+        UINT16_TO_STREAM (p, L2CAP_INFO_RESP_RESULT_NOT_SUPPORTED);  /* 'not supported' */
+    }
+
+    l2c_link_check_send_pkts (p_lcb, NULL, p_buf);
+}
+
+/******************************************************************************
+**
+** Function         l2cu_enqueue_ccb
+**
+** Description      queue CCB by priority. The first CCB is highest priority and
+**                  is served at first. The CCB is queued to an LLCB or an LCB.
+**
+** Returns          None
+**
+*******************************************************************************/
+void l2cu_enqueue_ccb (tL2C_CCB *p_ccb)
+{
+    tL2C_CCB        *p_ccb1;
+    tL2C_CCB_Q      *p_q = NULL;
+
+    /* Find out which queue the channel is on
+    */
+    if (p_ccb->p_lcb != NULL)
+        p_q = &p_ccb->p_lcb->ccb_queue;
+
+    if ( (!p_ccb->in_use) || (p_q == NULL) )
+    {
+        L2CAP_TRACE_ERROR ("l2cu_enqueue_ccb  CID: 0x%04x ERROR in_use: %u  p_lcb: 0x%08x",
+                            p_ccb->local_cid, p_ccb->in_use, p_ccb->p_lcb);
+        return;
+    }
+
+    L2CAP_TRACE_DEBUG ("l2cu_enqueue_ccb CID: 0x%04x  priority: %d",
+                        p_ccb->local_cid, p_ccb->ccb_priority);
+
+    /* If the queue is empty, we go at the front */
+    if (!p_q->p_first_ccb)
+    {
+        p_q->p_first_ccb  = p_q->p_last_ccb   = p_ccb;
+        p_ccb->p_next_ccb = p_ccb->p_prev_ccb = NULL;
+    }
+    else
+    {
+        p_ccb1 = p_q->p_first_ccb;
+
+        while (p_ccb1 != NULL)
+        {
+            /* Insert new ccb at the end of the same priority. Lower number, higher priority */
+            if (p_ccb->ccb_priority < p_ccb1->ccb_priority)
+            {
+                /* Are we at the head of the queue ? */
+                if (p_ccb1 == p_q->p_first_ccb)
+                    p_q->p_first_ccb = p_ccb;
+                else
+                    p_ccb1->p_prev_ccb->p_next_ccb  = p_ccb;
+
+                p_ccb->p_next_ccb  = p_ccb1;
+                p_ccb->p_prev_ccb  = p_ccb1->p_prev_ccb;
+                p_ccb1->p_prev_ccb = p_ccb;
+                break;
+            }
+
+            p_ccb1 = p_ccb1->p_next_ccb;
+        }
+
+        /* If we are lower then anyone in the list, we go at the end */
+        if (!p_ccb1)
+        {
+            /* add new ccb at the end of the list */
+            p_q->p_last_ccb->p_next_ccb = p_ccb;
+
+            p_ccb->p_next_ccb   = NULL;
+            p_ccb->p_prev_ccb   = p_q->p_last_ccb;
+            p_q->p_last_ccb = p_ccb;
+        }
+    }
+
+#if (L2CAP_ROUND_ROBIN_CHANNEL_SERVICE == TRUE)
+    /* Adding CCB into round robin service table of its LCB */
+    if (p_ccb->p_lcb != NULL)
+    {
+        /* if this is the first channel in this priority group */
+        if (p_ccb->p_lcb->rr_serv[p_ccb->ccb_priority].num_ccb == 0 )
+        {
+        	/* Set the first channel to this CCB */
+            p_ccb->p_lcb->rr_serv[p_ccb->ccb_priority].p_first_ccb = p_ccb;
+        	/* Set the next serving channel in this group to this CCB */
+            p_ccb->p_lcb->rr_serv[p_ccb->ccb_priority].p_serve_ccb = p_ccb;
+        	/* Initialize quota of this priority group based on its priority */
+            p_ccb->p_lcb->rr_serv[p_ccb->ccb_priority].quota = L2CAP_GET_PRIORITY_QUOTA(p_ccb->ccb_priority);
+        }
+        /* increase number of channels in this group */
+        p_ccb->p_lcb->rr_serv[p_ccb->ccb_priority].num_ccb++;
+    }
+#endif
+
+}
+
+/******************************************************************************
+**
+** Function         l2cu_dequeue_ccb
+**
+** Description      dequeue CCB from a queue
+**
+** Returns          -
+**
+*******************************************************************************/
+void l2cu_dequeue_ccb (tL2C_CCB *p_ccb)
+{
+    tL2C_CCB_Q      *p_q = NULL;
+
+    L2CAP_TRACE_DEBUG ("l2cu_dequeue_ccb  CID: 0x%04x", p_ccb->local_cid);
+
+    /* Find out which queue the channel is on
+    */
+    if (p_ccb->p_lcb != NULL)
+        p_q = &p_ccb->p_lcb->ccb_queue;
+
+    if ( (!p_ccb->in_use) || (p_q == NULL) || (p_q->p_first_ccb == NULL) )
+    {
+        L2CAP_TRACE_ERROR ("l2cu_dequeue_ccb  CID: 0x%04x ERROR in_use: %u  p_lcb: 0x%08x  p_q: 0x%08x  p_q->p_first_ccb: 0x%08x",
+                            p_ccb->local_cid, p_ccb->in_use, p_ccb->p_lcb, p_q, p_q ? p_q->p_first_ccb : 0);
+        return;
+    }
+
+#if (L2CAP_ROUND_ROBIN_CHANNEL_SERVICE == TRUE)
+    /* Removing CCB from round robin service table of its LCB */
+    if (p_ccb->p_lcb != NULL)
+    {
+        /* decrease number of channels in this priority group */
+        p_ccb->p_lcb->rr_serv[p_ccb->ccb_priority].num_ccb--;
+
+        /* if it was the last channel in the priority group */
+        if (p_ccb->p_lcb->rr_serv[p_ccb->ccb_priority].num_ccb == 0 )
+        {
+            p_ccb->p_lcb->rr_serv[p_ccb->ccb_priority].p_first_ccb = NULL;
+            p_ccb->p_lcb->rr_serv[p_ccb->ccb_priority].p_serve_ccb = NULL;
+        }
+        else
+        {
+            /* if it is the first channel of this group */
+            if ( p_ccb->p_lcb->rr_serv[p_ccb->ccb_priority].p_first_ccb == p_ccb )
+            {
+                p_ccb->p_lcb->rr_serv[p_ccb->ccb_priority].p_first_ccb = p_ccb->p_next_ccb;
+            }
+            /* if it is the next serving channel of this group */
+            if ( p_ccb->p_lcb->rr_serv[p_ccb->ccb_priority].p_serve_ccb == p_ccb )
+            {
+                /* simply, start serving from the first channel */
+                p_ccb->p_lcb->rr_serv[p_ccb->ccb_priority].p_serve_ccb
+                    = p_ccb->p_lcb->rr_serv[p_ccb->ccb_priority].p_first_ccb;
+            }
+        }
+    }
+#endif
+
+    if (p_ccb == p_q->p_first_ccb)
+    {
+        /* We are removing the first in a queue */
+        p_q->p_first_ccb = p_ccb->p_next_ccb;
+
+        if (p_q->p_first_ccb)
+            p_q->p_first_ccb->p_prev_ccb = NULL;
+        else
+            p_q->p_last_ccb = NULL;
+    }
+    else if (p_ccb == p_q->p_last_ccb)
+    {
+        /* We are removing the last in a queue */
+        p_q->p_last_ccb = p_ccb->p_prev_ccb;
+        p_q->p_last_ccb->p_next_ccb = NULL;
+    }
+    else
+    {
+        /* In the middle of a chain. */
+        p_ccb->p_prev_ccb->p_next_ccb = p_ccb->p_next_ccb;
+        p_ccb->p_next_ccb->p_prev_ccb = p_ccb->p_prev_ccb;
+    }
+
+    p_ccb->p_next_ccb = p_ccb->p_prev_ccb = NULL;
+}
+
+/******************************************************************************
+**
+** Function         l2cu_change_pri_ccb
+**
+** Description
+**
+** Returns          -
+**
+*******************************************************************************/
+void l2cu_change_pri_ccb (tL2C_CCB *p_ccb, tL2CAP_CHNL_PRIORITY priority)
+{
+    if (p_ccb->ccb_priority != priority)
+    {
+        /* If CCB is not the only guy on the queue */
+        if ( (p_ccb->p_next_ccb != NULL) || (p_ccb->p_prev_ccb != NULL) )
+        {
+            L2CAP_TRACE_DEBUG ("Update CCB list in logical link");
+
+            /* Remove CCB from queue and re-queue it at new priority */
+            l2cu_dequeue_ccb (p_ccb);
+
+            p_ccb->ccb_priority = priority;
+            l2cu_enqueue_ccb (p_ccb);
+        }
+#if (L2CAP_ROUND_ROBIN_CHANNEL_SERVICE == TRUE)
+        else
+        {
+        	/* If CCB is the only guy on the queue, no need to re-enqueue */
+            /* update only round robin service data */
+            p_ccb->p_lcb->rr_serv[p_ccb->ccb_priority].num_ccb = 0;
+            p_ccb->p_lcb->rr_serv[p_ccb->ccb_priority].p_first_ccb = NULL;
+            p_ccb->p_lcb->rr_serv[p_ccb->ccb_priority].p_serve_ccb = NULL;
+
+            p_ccb->ccb_priority = priority;
+
+            p_ccb->p_lcb->rr_serv[p_ccb->ccb_priority].p_first_ccb = p_ccb;
+            p_ccb->p_lcb->rr_serv[p_ccb->ccb_priority].p_serve_ccb = p_ccb;
+            p_ccb->p_lcb->rr_serv[p_ccb->ccb_priority].quota = L2CAP_GET_PRIORITY_QUOTA(p_ccb->ccb_priority);
+            p_ccb->p_lcb->rr_serv[p_ccb->ccb_priority].num_ccb = 1;
+        }
+#endif
+    }
+}
+
+/*******************************************************************************
+**
+** Function         l2cu_allocate_ccb
+**
+** Description      This function allocates a Channel Control Block and
+**                  attaches it to a link control block. The local CID
+**                  is also assigned.
+**
+** Returns          pointer to CCB, or NULL if none
+**
+*******************************************************************************/
+tL2C_CCB *l2cu_allocate_ccb (tL2C_LCB *p_lcb, UINT16 cid)
+{
+    tL2C_CCB    *p_ccb;
+    tL2C_CCB    *p_prev;
+
+    L2CAP_TRACE_DEBUG ("l2cu_allocate_ccb: cid 0x%04x", cid);
+
+    if (!l2cb.p_free_ccb_first)
+        return (NULL);
+
+    /* If a CID was passed in, use that, else take the first free one */
+    if (cid == 0)
+    {
+        p_ccb = l2cb.p_free_ccb_first;
+        l2cb.p_free_ccb_first = p_ccb->p_next_ccb;
+    }
+    else
+    {
+        p_prev = NULL;
+
+        p_ccb = &l2cb.ccb_pool[cid - L2CAP_BASE_APPL_CID];
+
+        if (p_ccb == l2cb.p_free_ccb_first)
+            l2cb.p_free_ccb_first = p_ccb->p_next_ccb;
+        else
+        {
+            for (p_prev = l2cb.p_free_ccb_first; p_prev != NULL; p_prev = p_prev->p_next_ccb)
+            {
+                if (p_prev->p_next_ccb == p_ccb)
+                {
+                    p_prev->p_next_ccb = p_ccb->p_next_ccb;
+
+                    if (p_ccb == l2cb.p_free_ccb_last)
+                        l2cb.p_free_ccb_last = p_prev;
+
+                    break;
+                }
+            }
+            if (p_prev == NULL)
+            {
+                L2CAP_TRACE_ERROR ("l2cu_allocate_ccb: could not find CCB for CID 0x%04x in the free list", cid);
+                return NULL;
+            }
+        }
+    }
+
+    p_ccb->p_next_ccb = p_ccb->p_prev_ccb = NULL;
+
+    p_ccb->in_use = TRUE;
+
+    /* Get a CID for the connection */
+    p_ccb->local_cid = L2CAP_BASE_APPL_CID + (UINT16)(p_ccb - l2cb.ccb_pool);
+
+    p_ccb->p_lcb = p_lcb;
+    p_ccb->p_rcb = NULL;
+    p_ccb->should_free_rcb = false;
+
+    /* Set priority then insert ccb into LCB queue (if we have an LCB) */
+    p_ccb->ccb_priority = L2CAP_CHNL_PRIORITY_LOW;
+
+    if (p_lcb)
+        l2cu_enqueue_ccb (p_ccb);
+
+    /* clear what peer wants to configure */
+    p_ccb->peer_cfg_bits = 0;
+
+    /* Put in default values for configuration */
+    memset (&p_ccb->our_cfg, 0, sizeof(tL2CAP_CFG_INFO));
+    memset (&p_ccb->peer_cfg, 0, sizeof(tL2CAP_CFG_INFO));
+
+    /* Put in default values for local/peer configurations */
+    p_ccb->our_cfg.flush_to              = p_ccb->peer_cfg.flush_to              = L2CAP_DEFAULT_FLUSH_TO;
+    p_ccb->our_cfg.mtu                   = p_ccb->peer_cfg.mtu                   = L2CAP_DEFAULT_MTU;
+    p_ccb->our_cfg.qos.service_type      = p_ccb->peer_cfg.qos.service_type      = L2CAP_DEFAULT_SERV_TYPE;
+    p_ccb->our_cfg.qos.token_rate        = p_ccb->peer_cfg.qos.token_rate        = L2CAP_DEFAULT_TOKEN_RATE;
+    p_ccb->our_cfg.qos.token_bucket_size = p_ccb->peer_cfg.qos.token_bucket_size = L2CAP_DEFAULT_BUCKET_SIZE;
+    p_ccb->our_cfg.qos.peak_bandwidth    = p_ccb->peer_cfg.qos.peak_bandwidth    = L2CAP_DEFAULT_PEAK_BANDWIDTH;
+    p_ccb->our_cfg.qos.latency           = p_ccb->peer_cfg.qos.latency           = L2CAP_DEFAULT_LATENCY;
+    p_ccb->our_cfg.qos.delay_variation   = p_ccb->peer_cfg.qos.delay_variation   = L2CAP_DEFAULT_DELAY;
+
+    p_ccb->bypass_fcs = 0;
+    memset (&p_ccb->ertm_info, 0, sizeof(tL2CAP_ERTM_INFO));
+    p_ccb->peer_cfg_already_rejected = FALSE;
+    p_ccb->fcr_cfg_tries         = L2CAP_MAX_FCR_CFG_TRIES;
+
+    alarm_free(p_ccb->fcrb.ack_timer);
+    p_ccb->fcrb.ack_timer = alarm_new("l2c_fcrb.ack_timer");
+
+   /*  CSP408639 Fix: When L2CAP send amp move channel request or receive
+     * L2CEVT_AMP_MOVE_REQ do following sequence. Send channel move
+     * request -> Stop retrans/monitor timer -> Change channel state to CST_AMP_MOVING. */
+    alarm_free(p_ccb->fcrb.mon_retrans_timer);
+    p_ccb->fcrb.mon_retrans_timer = alarm_new("l2c_fcrb.mon_retrans_timer");
+
+    p_ccb->ertm_info.preferred_mode  = L2CAP_FCR_BASIC_MODE;        /* Default mode for channel is basic mode */
+    p_ccb->ertm_info.allowed_modes   = L2CAP_FCR_CHAN_OPT_BASIC;    /* Default mode for channel is basic mode */
+    p_ccb->ertm_info.fcr_rx_buf_size = L2CAP_FCR_RX_BUF_SIZE;
+    p_ccb->ertm_info.fcr_tx_buf_size = L2CAP_FCR_TX_BUF_SIZE;
+    p_ccb->ertm_info.user_rx_buf_size = L2CAP_USER_RX_BUF_SIZE;
+    p_ccb->ertm_info.user_tx_buf_size = L2CAP_USER_TX_BUF_SIZE;
+    p_ccb->max_rx_mtu                = L2CAP_MTU_SIZE;
+    p_ccb->tx_mps                    = L2CAP_FCR_TX_BUF_SIZE - 32;
+
+    p_ccb->xmit_hold_q  = fixed_queue_new(SIZE_MAX);
+    p_ccb->fcrb.srej_rcv_hold_q = fixed_queue_new(SIZE_MAX);
+    p_ccb->fcrb.retrans_q = fixed_queue_new(SIZE_MAX);
+    p_ccb->fcrb.waiting_for_ack_q = fixed_queue_new(SIZE_MAX);
+
+    p_ccb->cong_sent    = FALSE;
+    p_ccb->buff_quota   = 2;                /* This gets set after config */
+
+    /* If CCB was reserved Config_Done can already have some value */
+    if (cid == 0)
+        p_ccb->config_done  = 0;
+    else
+    {
+        L2CAP_TRACE_DEBUG ("l2cu_allocate_ccb: cid 0x%04x config_done:0x%x", cid, p_ccb->config_done);
+    }
+
+    p_ccb->chnl_state   = CST_CLOSED;
+    p_ccb->flags        = 0;
+    p_ccb->tx_data_rate = L2CAP_CHNL_DATA_RATE_LOW;
+    p_ccb->rx_data_rate = L2CAP_CHNL_DATA_RATE_LOW;
+
+#if (L2CAP_NON_FLUSHABLE_PB_INCLUDED == TRUE)
+    p_ccb->is_flushable = FALSE;
+#endif
+
+    alarm_free(p_ccb->l2c_ccb_timer);
+    p_ccb->l2c_ccb_timer = alarm_new("l2c.l2c_ccb_timer");
+
+    l2c_link_adjust_chnl_allocation ();
+
+    return (p_ccb);
+}
+
+/*******************************************************************************
+**
+** Function         l2cu_start_post_bond_timer
+**
+** Description      This function starts the ACL Link inactivity timer after
+**                  dedicated bonding
+**                  This timer can be longer than the normal link inactivity
+**                  timer for some platforms.
+**
+** Returns          BOOLEAN  - TRUE if idle timer started or disconnect initiated
+**                             FALSE if there's one or more pending CCB's exist
+**
+*******************************************************************************/
+BOOLEAN l2cu_start_post_bond_timer (UINT16 handle)
+{
+    tL2C_LCB *p_lcb = l2cu_find_lcb_by_handle(handle);
+
+    if (!p_lcb)
+        return (TRUE);
+
+    p_lcb->is_bonding = FALSE;
+
+    /* Only start timer if no control blocks allocated */
+    if (p_lcb->ccb_queue.p_first_ccb != NULL)
+        return (FALSE);
+
+    /* If no channels on the connection, start idle timeout */
+    if ((p_lcb->link_state == LST_CONNECTED) ||
+        (p_lcb->link_state == LST_CONNECTING) ||
+        (p_lcb->link_state == LST_DISCONNECTING)) {
+        period_ms_t timeout_ms = L2CAP_BONDING_TIMEOUT * 1000;
+
+        if (p_lcb->idle_timeout == 0) {
+            if (btsnd_hcic_disconnect (p_lcb->handle, HCI_ERR_PEER_USER)) {
+                p_lcb->link_state = LST_DISCONNECTING;
+                timeout_ms = L2CAP_LINK_DISCONNECT_TIMEOUT_MS;
+            } else {
+                timeout_ms = BT_1SEC_TIMEOUT_MS;
+            }
+        }
+        alarm_set_on_queue(p_lcb->l2c_lcb_timer, timeout_ms,
+                           l2c_lcb_timer_timeout, p_lcb,
+                           btu_general_alarm_queue);
+        return (TRUE);
+    }
+
+    return (FALSE);
+}
+
+/*******************************************************************************
+**
+** Function         l2cu_release_ccb
+**
+** Description      This function releases a Channel Control Block. The timer
+**                  is stopped, any attached buffers freed, and the CCB is removed
+**                  from the link control block.
+**
+** Returns          void
+**
+*******************************************************************************/
+void l2cu_release_ccb (tL2C_CCB *p_ccb)
+{
+    tL2C_LCB    *p_lcb = p_ccb->p_lcb;
+    tL2C_RCB    *p_rcb = p_ccb->p_rcb;
+
+    L2CAP_TRACE_DEBUG ("l2cu_release_ccb: cid 0x%04x  in_use: %u", p_ccb->local_cid, p_ccb->in_use);
+
+    /* If already released, could be race condition */
+    if (!p_ccb->in_use)
+        return;
+
+    if (p_rcb && (p_rcb->psm != p_rcb->real_psm))
+    {
+        btm_sec_clr_service_by_psm(p_rcb->psm);
+    }
+
+    if (p_ccb->should_free_rcb)
+    {
+        osi_free(p_rcb);
+        p_ccb->p_rcb = NULL;
+        p_ccb->should_free_rcb = false;
+    }
+
+    btm_sec_clr_temp_auth_service (p_lcb->remote_bd_addr);
+
+    /* Free the timer */
+    alarm_free(p_ccb->l2c_ccb_timer);
+    p_ccb->l2c_ccb_timer = NULL;
+
+    fixed_queue_free(p_ccb->xmit_hold_q, osi_free);
+    p_ccb->xmit_hold_q = NULL;
+
+    l2c_fcr_cleanup (p_ccb);
+
+    /* Channel may not be assigned to any LCB if it was just pre-reserved */
+    if ( (p_lcb) &&
+         ( (p_ccb->local_cid >= L2CAP_BASE_APPL_CID)
+#if (L2CAP_UCD_INCLUDED == TRUE)
+         ||(p_ccb->local_cid == L2CAP_CONNECTIONLESS_CID)
+#endif
+         )
+       )
+    {
+        l2cu_dequeue_ccb (p_ccb);
+
+        /* Delink the CCB from the LCB */
+        p_ccb->p_lcb = NULL;
+    }
+
+    /* Put the CCB back on the free pool */
+    if (!l2cb.p_free_ccb_first)
+    {
+        l2cb.p_free_ccb_first = p_ccb;
+        l2cb.p_free_ccb_last  = p_ccb;
+        p_ccb->p_next_ccb     = NULL;
+        p_ccb->p_prev_ccb     = NULL;
+    }
+    else
+    {
+        p_ccb->p_next_ccb  = NULL;
+        p_ccb->p_prev_ccb  = l2cb.p_free_ccb_last;
+        l2cb.p_free_ccb_last->p_next_ccb = p_ccb;
+        l2cb.p_free_ccb_last  = p_ccb;
+    }
+
+    /* Flag as not in use */
+    p_ccb->in_use = FALSE;
+
+    /* If no channels on the connection, start idle timeout */
+    if ((p_lcb) && p_lcb->in_use && (p_lcb->link_state == LST_CONNECTED))
+    {
+        if (!p_lcb->ccb_queue.p_first_ccb)
+        {
+            l2cu_no_dynamic_ccbs (p_lcb);
+        }
+        else
+        {
+            /* Link is still active, adjust channel quotas. */
+            l2c_link_adjust_chnl_allocation ();
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         l2cu_find_ccb_by_remote_cid
+**
+** Description      Look through all active CCBs on a link for a match based
+**                  on the remote CID.
+**
+** Returns          pointer to matched CCB, or NULL if no match
+**
+*******************************************************************************/
+tL2C_CCB *l2cu_find_ccb_by_remote_cid (tL2C_LCB *p_lcb, UINT16 remote_cid)
+{
+    tL2C_CCB    *p_ccb;
+
+    /* If LCB is NULL, look through all active links */
+    if (!p_lcb)
+    {
+        return NULL;
+    }
+    else
+    {
+        for (p_ccb = p_lcb->ccb_queue.p_first_ccb; p_ccb; p_ccb = p_ccb->p_next_ccb)
+            if ((p_ccb->in_use) && (p_ccb->remote_cid == remote_cid))
+                return (p_ccb);
+    }
+
+    /* If here, no match found */
+    return (NULL);
+}
+
+/*******************************************************************************
+**
+** Function         l2cu_allocate_rcb
+**
+** Description      Look through the Registration Control Blocks for a free
+**                  one.
+**
+** Returns          Pointer to the RCB or NULL if not found
+**
+*******************************************************************************/
+tL2C_RCB *l2cu_allocate_rcb (UINT16 psm)
+{
+    tL2C_RCB    *p_rcb = &l2cb.rcb_pool[0];
+    UINT16      xx;
+
+    for (xx = 0; xx < MAX_L2CAP_CLIENTS; xx++, p_rcb++)
+    {
+        if (!p_rcb->in_use)
+        {
+            p_rcb->in_use = TRUE;
+            p_rcb->psm    = psm;
+#if (L2CAP_UCD_INCLUDED == TRUE)
+            p_rcb->ucd.state = L2C_UCD_STATE_UNUSED;
+#endif
+            return (p_rcb);
+        }
+    }
+
+    /* If here, no free RCB found */
+    return (NULL);
+}
+
+/*******************************************************************************
+**
+** Function         l2cu_allocate_ble_rcb
+**
+** Description      Look through the BLE Registration Control Blocks for a free
+**                  one.
+**
+** Returns          Pointer to the BLE RCB or NULL if not found
+**
+*******************************************************************************/
+tL2C_RCB *l2cu_allocate_ble_rcb (UINT16 psm)
+{
+    tL2C_RCB    *p_rcb = &l2cb.ble_rcb_pool[0];
+    UINT16      xx;
+
+    for (xx = 0; xx < BLE_MAX_L2CAP_CLIENTS; xx++, p_rcb++)
+    {
+        if (!p_rcb->in_use)
+        {
+            p_rcb->in_use = TRUE;
+            p_rcb->psm    = psm;
+#if (L2CAP_UCD_INCLUDED == TRUE)
+            p_rcb->ucd.state = L2C_UCD_STATE_UNUSED;
+#endif
+            return (p_rcb);
+        }
+    }
+
+    /* If here, no free RCB found */
+    return (NULL);
+}
+
+/*******************************************************************************
+**
+** Function         l2cu_release_rcb
+**
+** Description      Mark an RCB as no longet in use
+**
+** Returns          void
+**
+*******************************************************************************/
+void l2cu_release_rcb (tL2C_RCB *p_rcb)
+{
+    p_rcb->in_use = FALSE;
+    p_rcb->psm    = 0;
+}
+
+
+/*******************************************************************************
+**
+** Function         l2cu_disconnect_chnl
+**
+** Description      Disconnect a channel. Typically, this is due to either
+**                  receiving a bad configuration,  bad packet or max_retries expiring.
+**
+*******************************************************************************/
+void l2cu_disconnect_chnl (tL2C_CCB *p_ccb)
+{
+    UINT16      local_cid = p_ccb->local_cid;
+
+    if (local_cid >= L2CAP_BASE_APPL_CID)
+    {
+        tL2CA_DISCONNECT_IND_CB   *p_disc_cb = p_ccb->p_rcb->api.pL2CA_DisconnectInd_Cb;
+
+        L2CAP_TRACE_WARNING ("L2CAP - disconnect_chnl CID: 0x%04x", local_cid);
+
+        l2cu_send_peer_disc_req (p_ccb);
+
+        l2cu_release_ccb (p_ccb);
+
+        (*p_disc_cb)(local_cid, FALSE);
+    }
+    else
+    {
+        /* failure on the AMP channel, probably need to disconnect ACL */
+        L2CAP_TRACE_ERROR ("L2CAP - disconnect_chnl CID: 0x%04x Ignored", local_cid);
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         l2cu_find_rcb_by_psm
+**
+** Description      Look through the Registration Control Blocks to see if
+**                  anyone registered to handle the PSM in question
+**
+** Returns          Pointer to the RCB or NULL if not found
+**
+*******************************************************************************/
+tL2C_RCB *l2cu_find_rcb_by_psm (UINT16 psm)
+{
+    tL2C_RCB    *p_rcb = &l2cb.rcb_pool[0];
+    UINT16      xx;
+
+    for (xx = 0; xx < MAX_L2CAP_CLIENTS; xx++, p_rcb++)
+    {
+        if ((p_rcb->in_use) && (p_rcb->psm == psm))
+            return (p_rcb);
+    }
+
+    /* If here, no match found */
+    return (NULL);
+}
+
+/*******************************************************************************
+**
+** Function         l2cu_find_ble_rcb_by_psm
+**
+** Description      Look through the BLE Registration Control Blocks to see if
+**                  anyone registered to handle the PSM in question
+**
+** Returns          Pointer to the BLE RCB or NULL if not found
+**
+*******************************************************************************/
+tL2C_RCB *l2cu_find_ble_rcb_by_psm (UINT16 psm)
+{
+    tL2C_RCB    *p_rcb = &l2cb.ble_rcb_pool[0];
+    UINT16      xx;
+
+    for (xx = 0; xx < BLE_MAX_L2CAP_CLIENTS; xx++, p_rcb++)
+    {
+        if ((p_rcb->in_use) && (p_rcb->psm == psm))
+            return (p_rcb);
+    }
+
+    /* If here, no match found */
+    return (NULL);
+}
+
+/*******************************************************************************
+**
+** Function         l2cu_process_peer_cfg_req
+**
+** Description      This function is called when the peer sends us a "config request"
+**                  message. It extracts the configuration of interest and saves
+**                  it in the CCB.
+**
+**                  Note:  Negotiation of the FCR channel type is handled internally,
+**                         all others are passed to the upper layer.
+**
+** Returns          UINT8 - L2CAP_PEER_CFG_OK if passed to upper layer,
+**                          L2CAP_PEER_CFG_UNACCEPTABLE if automatically responded to
+**                              because parameters are unnacceptable from a specification
+**                              point of view.
+**                          L2CAP_PEER_CFG_DISCONNECT if no compatible channel modes
+**                              between the two devices, and shall be closed.
+**
+*******************************************************************************/
+UINT8 l2cu_process_peer_cfg_req (tL2C_CCB *p_ccb, tL2CAP_CFG_INFO *p_cfg)
+{
+    BOOLEAN  mtu_ok      = TRUE;
+    BOOLEAN  qos_type_ok = TRUE;
+    BOOLEAN  flush_to_ok = TRUE;
+    BOOLEAN  fcr_ok      = TRUE;
+    UINT8    fcr_status;
+
+    /* Ignore FCR parameters for basic mode */
+    if (!p_cfg->fcr_present)
+        p_cfg->fcr.mode = L2CAP_FCR_BASIC_MODE;
+
+    /* Save the MTU that our peer can receive */
+    if (p_cfg->mtu_present)
+    {
+        /* Make sure MTU is at least the minimum */
+        if (p_cfg->mtu >= L2CAP_MIN_MTU)
+        {
+            /* In basic mode, limit the MTU to our buffer size */
+            if ( (p_cfg->fcr_present == FALSE) && (p_cfg->mtu > L2CAP_MTU_SIZE) )
+                p_cfg->mtu = L2CAP_MTU_SIZE;
+
+            /* Save the accepted value in case of renegotiation */
+            p_ccb->peer_cfg.mtu = p_cfg->mtu;
+            p_ccb->peer_cfg.mtu_present = TRUE;
+            p_ccb->peer_cfg_bits |= L2CAP_CH_CFG_MASK_MTU;
+        }
+        else    /* Illegal MTU value */
+        {
+            p_cfg->mtu = L2CAP_MIN_MTU;
+            mtu_ok     = FALSE;
+        }
+    }
+    /* Reload mtu from a previously accepted config request */
+    else if (p_ccb->peer_cfg.mtu_present)
+    {
+        p_cfg->mtu_present = TRUE;
+        p_cfg->mtu = p_ccb->peer_cfg.mtu;
+    }
+
+    /* Verify that the flush timeout is a valid value (0 is illegal) */
+    if (p_cfg->flush_to_present)
+    {
+        if (!p_cfg->flush_to)
+        {
+            p_cfg->flush_to = 0xFFFF;   /* Infinite retransmissions (spec default) */
+            flush_to_ok     = FALSE;
+        }
+        else    /* Save the accepted value in case of renegotiation */
+        {
+            p_ccb->peer_cfg.flush_to_present = TRUE;
+            p_ccb->peer_cfg.flush_to = p_cfg->flush_to;
+            p_ccb->peer_cfg_bits |= L2CAP_CH_CFG_MASK_FLUSH_TO;
+        }
+    }
+    /* Reload flush_to from a previously accepted config request */
+    else if (p_ccb->peer_cfg.flush_to_present)
+    {
+        p_cfg->flush_to_present = TRUE;
+        p_cfg->flush_to = p_ccb->peer_cfg.flush_to;
+    }
+
+    /* Save the QOS settings the the peer is using */
+    if (p_cfg->qos_present)
+    {
+        /* Make sure service type is not a reserved value; otherwise let upper
+           layer decide if acceptable
+        */
+        if (p_cfg->qos.service_type <= GUARANTEED)
+        {
+            p_ccb->peer_cfg.qos         = p_cfg->qos;
+            p_ccb->peer_cfg.qos_present = TRUE;
+            p_ccb->peer_cfg_bits |= L2CAP_CH_CFG_MASK_QOS;
+        }
+        else    /* Illegal service type value */
+        {
+            p_cfg->qos.service_type = BEST_EFFORT;
+            qos_type_ok             = FALSE;
+        }
+    }
+    /* Reload QOS from a previously accepted config request */
+    else if (p_ccb->peer_cfg.qos_present)
+    {
+        p_cfg->qos_present = TRUE;
+        p_cfg->qos         = p_ccb->peer_cfg.qos;
+    }
+
+    if ((fcr_status = l2c_fcr_process_peer_cfg_req (p_ccb, p_cfg)) == L2CAP_PEER_CFG_DISCONNECT)
+    {
+        /* Notify caller to disconnect the channel (incompatible modes) */
+        p_cfg->result = L2CAP_CFG_FAILED_NO_REASON;
+        p_cfg->mtu_present = p_cfg->qos_present = p_cfg->flush_to_present = 0;
+
+        return (L2CAP_PEER_CFG_DISCONNECT);
+    }
+
+    fcr_ok = (fcr_status == L2CAP_PEER_CFG_OK);
+
+    /* Return any unacceptable parameters */
+    if (mtu_ok && flush_to_ok && qos_type_ok && fcr_ok)
+    {
+        l2cu_adjust_out_mps (p_ccb);
+        return (L2CAP_PEER_CFG_OK);
+    }
+    else
+    {
+        p_cfg->result = L2CAP_CFG_UNACCEPTABLE_PARAMS;
+
+        if (mtu_ok)
+            p_cfg->mtu_present = FALSE;
+        if (flush_to_ok)
+            p_cfg->flush_to_present = FALSE;
+        if (qos_type_ok)
+            p_cfg->qos_present = FALSE;
+        if (fcr_ok)
+            p_cfg->fcr_present = FALSE;
+
+        return (L2CAP_PEER_CFG_UNACCEPTABLE);
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         l2cu_process_peer_cfg_rsp
+**
+** Description      This function is called when the peer sends us a "config response"
+**                  message. It extracts the configuration of interest and saves
+**                  it in the CCB.
+**
+** Returns          void
+**
+*******************************************************************************/
+void l2cu_process_peer_cfg_rsp (tL2C_CCB *p_ccb, tL2CAP_CFG_INFO *p_cfg)
+{
+    /* If we wanted QoS and the peer sends us a positive response with QoS, use his values */
+    if ( (p_cfg->qos_present) && (p_ccb->our_cfg.qos_present) )
+        p_ccb->our_cfg.qos = p_cfg->qos;
+
+    if (p_cfg->fcr_present)
+    {
+        /* Save the retransmission and monitor timeout values */
+        if (p_cfg->fcr.mode == L2CAP_FCR_ERTM_MODE)
+        {
+            p_ccb->peer_cfg.fcr.rtrans_tout = p_cfg->fcr.rtrans_tout;
+            p_ccb->peer_cfg.fcr.mon_tout = p_cfg->fcr.mon_tout;
+        }
+
+        /* Calculate the max number of packets for which we can delay sending an ack */
+        if (p_cfg->fcr.tx_win_sz < p_ccb->our_cfg.fcr.tx_win_sz)
+            p_ccb->fcrb.max_held_acks = p_cfg->fcr.tx_win_sz / 3;
+        else
+            p_ccb->fcrb.max_held_acks = p_ccb->our_cfg.fcr.tx_win_sz / 3;
+
+        L2CAP_TRACE_DEBUG ("l2cu_process_peer_cfg_rsp(): peer tx_win_sz: %d, our tx_win_sz: %d, max_held_acks: %d",
+                             p_cfg->fcr.tx_win_sz, p_ccb->our_cfg.fcr.tx_win_sz, p_ccb->fcrb.max_held_acks);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         l2cu_process_our_cfg_req
+**
+** Description      This function is called when we send a "config request"
+**                  message. It extracts the configuration of interest and saves
+**                  it in the CCB.
+**
+** Returns          void
+**
+*******************************************************************************/
+void l2cu_process_our_cfg_req (tL2C_CCB *p_ccb, tL2CAP_CFG_INFO *p_cfg)
+{
+    tL2C_LCB    *p_lcb;
+    UINT16      hci_flush_to;
+
+    /* Save the QOS settings we are using for transmit */
+    if (p_cfg->qos_present)
+    {
+        p_ccb->our_cfg.qos_present = TRUE;
+        p_ccb->our_cfg.qos         = p_cfg->qos;
+    }
+
+    if (p_cfg->fcr_present)
+    {
+        /* Override FCR options if attempting streaming or basic */
+        if (p_cfg->fcr.mode == L2CAP_FCR_BASIC_MODE)
+            memset(&p_cfg->fcr, 0, sizeof(tL2CAP_FCR_OPTS));
+        else
+        {
+            /* On BR/EDR, timer values are zero in config request */
+            /* On class 2 AMP, timer value in config request shall be non-0 processing time */
+            /*                 timer value in config response shall be greater than received processing time */
+            p_cfg->fcr.mon_tout = p_cfg->fcr.rtrans_tout = 0;
+
+            if (p_cfg->fcr.mode == L2CAP_FCR_STREAM_MODE)
+                p_cfg->fcr.max_transmit = p_cfg->fcr.tx_win_sz = 0;
+        }
+
+        /* Set the threshold to send acks (may be updated in the cfg response) */
+        p_ccb->fcrb.max_held_acks = p_cfg->fcr.tx_win_sz / 3;
+
+        /* Include FCS option only if peer can handle it */
+        if (p_ccb->p_lcb->peer_ext_fea & L2CAP_EXTFEA_NO_CRC)
+        {
+            /* FCS check can be bypassed if peer also desires to bypass */
+            if (p_cfg->fcs_present && p_cfg->fcs == L2CAP_CFG_FCS_BYPASS)
+                p_ccb->bypass_fcs |= L2CAP_CFG_FCS_OUR;
+        }
+        else
+            p_cfg->fcs_present = FALSE;
+    }
+    else
+    {
+        p_cfg->fcr.mode = L2CAP_FCR_BASIC_MODE;
+    }
+
+    p_ccb->our_cfg.fcr.mode    = p_cfg->fcr.mode;
+    p_ccb->our_cfg.fcr_present = p_cfg->fcr_present;
+
+    /* Check the flush timeout. If it is lower than the current one used */
+    /* then we need to adjust the flush timeout sent to the controller   */
+    if (p_cfg->flush_to_present)
+    {
+        if ((p_cfg->flush_to == 0)||(p_cfg->flush_to == L2CAP_NO_AUTOMATIC_FLUSH))
+        {
+            /* don't send invalid flush timeout */
+            /* SPEC: The sender of the Request shall specify its flush timeout value */
+            /*       if it differs from the default value of 0xFFFF                  */
+            p_cfg->flush_to_present = FALSE;
+        }
+        else
+        {
+            p_ccb->our_cfg.flush_to = p_cfg->flush_to;
+            p_lcb = p_ccb->p_lcb;
+
+            if (p_cfg->flush_to < p_lcb->link_flush_tout)
+            {
+                p_lcb->link_flush_tout = p_cfg->flush_to;
+
+                /* If the timeout is within range of HCI, set the flush timeout */
+                if (p_cfg->flush_to <= ((HCI_MAX_AUTO_FLUSH_TOUT * 5) / 8))
+                {
+                    /* Convert flush timeout to 0.625 ms units, with round */
+                    hci_flush_to = ((p_cfg->flush_to * 8) + 3) / 5;
+                    btsnd_hcic_write_auto_flush_tout (p_lcb->handle, hci_flush_to);
+                }
+            }
+        }
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         l2cu_process_our_cfg_rsp
+**
+** Description      This function is called when we send the peer a "config response"
+**                  message. It extracts the configuration of interest and saves
+**                  it in the CCB.
+**
+** Returns          void
+**
+*******************************************************************************/
+void l2cu_process_our_cfg_rsp (tL2C_CCB *p_ccb, tL2CAP_CFG_INFO *p_cfg)
+{
+    /* If peer wants QoS, we are allowed to change the values in a positive response */
+    if ( (p_cfg->qos_present) && (p_ccb->peer_cfg.qos_present) )
+        p_ccb->peer_cfg.qos = p_cfg->qos;
+    else
+        p_cfg->qos_present = FALSE;
+
+    l2c_fcr_adj_our_rsp_options (p_ccb, p_cfg);
+}
+
+
+/*******************************************************************************
+**
+** Function         l2cu_device_reset
+**
+** Description      This function is called when reset of the device is
+**                  completed.  For all active connection simulate HCI_DISC
+**
+** Returns          void
+**
+*******************************************************************************/
+void l2cu_device_reset (void)
+{
+    int         xx;
+    tL2C_LCB    *p_lcb = &l2cb.lcb_pool[0];
+
+    for (xx = 0; xx < MAX_L2CAP_LINKS; xx++, p_lcb++)
+    {
+        if ((p_lcb->in_use) && (p_lcb->handle != HCI_INVALID_HANDLE))
+        {
+            l2c_link_hci_disc_comp (p_lcb->handle, (UINT8) -1);
+        }
+    }
+#if (BLE_INCLUDED == TRUE)
+    l2cb.is_ble_connecting = FALSE;
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         l2cu_create_conn
+**
+** Description      This function initiates an acl connection via HCI
+**
+** Returns          TRUE if successful, FALSE if get buffer fails.
+**
+*******************************************************************************/
+BOOLEAN l2cu_create_conn (tL2C_LCB *p_lcb, tBT_TRANSPORT transport)
+{
+    int             xx;
+    tL2C_LCB        *p_lcb_cur = &l2cb.lcb_pool[0];
+#if BTM_SCO_INCLUDED == TRUE
+    BOOLEAN         is_sco_active;
+#endif
+
+#if (BLE_INCLUDED == TRUE)
+    tBT_DEVICE_TYPE     dev_type;
+    tBLE_ADDR_TYPE      addr_type;
+
+
+    BTM_ReadDevInfo(p_lcb->remote_bd_addr, &dev_type, &addr_type);
+
+    if (transport == BT_TRANSPORT_LE)
+    {
+        if (!controller_get_interface()->supports_ble())
+            return FALSE;
+
+        p_lcb->ble_addr_type = addr_type;
+        p_lcb->transport = BT_TRANSPORT_LE;
+
+        return (l2cble_create_conn(p_lcb));
+    }
+#endif
+
+    /* If there is a connection where we perform as a slave, try to switch roles
+       for this connection */
+    for (xx = 0, p_lcb_cur = &l2cb.lcb_pool[0]; xx < MAX_L2CAP_LINKS; xx++, p_lcb_cur++)
+    {
+        if (p_lcb_cur == p_lcb)
+            continue;
+
+        if ((p_lcb_cur->in_use) && (p_lcb_cur->link_role == HCI_ROLE_SLAVE))
+        {
+
+#if BTM_SCO_INCLUDED == TRUE
+            /* The LMP_switch_req shall be sent only if the ACL logical transport
+            is in active mode, when encryption is disabled, and all synchronous
+            logical transports on the same physical link are disabled." */
+
+            /* Check if there is any SCO Active on this BD Address */
+            is_sco_active = btm_is_sco_active_by_bdaddr(p_lcb_cur->remote_bd_addr);
+
+            L2CAP_TRACE_API ("l2cu_create_conn - btm_is_sco_active_by_bdaddr() is_sco_active = %s", \
+                (is_sco_active == TRUE) ? "TRUE":"FALSE");
+
+            if (is_sco_active == TRUE)
+                continue; /* No Master Slave switch not allowed when SCO Active */
+#endif
+            /*4_1_TODO check  if btm_cb.devcb.local_features to be used instead */
+            if (HCI_SWITCH_SUPPORTED(BTM_ReadLocalFeatures()))
+            {
+                /* mark this lcb waiting for switch to be completed and
+                   start switch on the other one */
+                p_lcb->link_state = LST_CONNECTING_WAIT_SWITCH;
+                p_lcb->link_role  = HCI_ROLE_MASTER;
+
+                if (BTM_SwitchRole (p_lcb_cur->remote_bd_addr, HCI_ROLE_MASTER, NULL) == BTM_CMD_STARTED)
+                {
+                    alarm_set_on_queue(p_lcb->l2c_lcb_timer,
+                                       L2CAP_LINK_ROLE_SWITCH_TIMEOUT_MS,
+                                       l2c_lcb_timer_timeout, p_lcb,
+                                       btu_general_alarm_queue);
+                    return (TRUE);
+                }
+            }
+        }
+    }
+
+    p_lcb->link_state = LST_CONNECTING;
+
+    return (l2cu_create_conn_after_switch (p_lcb));
+}
+
+/*******************************************************************************
+**
+** Function         l2cu_get_num_hi_priority
+**
+** Description      Gets the number of high priority channels.
+**
+** Returns
+**
+*******************************************************************************/
+UINT8 l2cu_get_num_hi_priority (void)
+{
+    UINT8       no_hi = 0;
+    int         xx;
+    tL2C_LCB    *p_lcb = &l2cb.lcb_pool[0];
+
+    for (xx = 0; xx < MAX_L2CAP_LINKS; xx++, p_lcb++)
+    {
+        if ((p_lcb->in_use) && (p_lcb->acl_priority == L2CAP_PRIORITY_HIGH))
+        {
+            no_hi++;
+        }
+    }
+    return no_hi;
+}
+
+
+/*******************************************************************************
+**
+** Function         l2cu_create_conn_after_switch
+**
+** Description      This function initiates an acl connection via HCI
+**                  If switch required to create connection it is already done.
+**
+** Returns          TRUE if successful, FALSE if get buffer fails.
+**
+*******************************************************************************/
+
+BOOLEAN l2cu_create_conn_after_switch (tL2C_LCB *p_lcb)
+{
+    UINT8            allow_switch = HCI_CR_CONN_ALLOW_SWITCH;
+    tBTM_INQ_INFO    *p_inq_info;
+    UINT8            page_scan_rep_mode;
+    UINT8            page_scan_mode;
+    UINT16           clock_offset;
+    UINT8            *p_features;
+    UINT16           num_acl = BTM_GetNumAclLinks();
+    tBTM_SEC_DEV_REC *p_dev_rec = btm_find_dev (p_lcb->remote_bd_addr);
+    UINT8            no_hi_prio_chs = l2cu_get_num_hi_priority();
+
+    p_features = BTM_ReadLocalFeatures();
+
+    L2CAP_TRACE_DEBUG ("l2cu_create_conn_after_switch :%d num_acl:%d no_hi: %d is_bonding:%d",
+        l2cb.disallow_switch, num_acl, no_hi_prio_chs, p_lcb->is_bonding);
+    /* FW team says that we can participant in 4 piconets
+     * typically 3 piconet + 1 for scanning.
+     * We can enhance the code to count the number of piconets later. */
+    if ( ((!l2cb.disallow_switch && (num_acl < 3)) || (p_lcb->is_bonding && (no_hi_prio_chs==0)))
+        && HCI_SWITCH_SUPPORTED(p_features))
+        allow_switch = HCI_CR_CONN_ALLOW_SWITCH;
+    else
+        allow_switch = HCI_CR_CONN_NOT_ALLOW_SWITCH;
+
+    p_lcb->link_state = LST_CONNECTING;
+
+    /* Check with the BT manager if details about remote device are known */
+    if ((p_inq_info = BTM_InqDbRead(p_lcb->remote_bd_addr)) != NULL)
+    {
+        page_scan_rep_mode = p_inq_info->results.page_scan_rep_mode;
+        page_scan_mode = p_inq_info->results.page_scan_mode;
+        clock_offset = (UINT16)(p_inq_info->results.clock_offset);
+    }
+    else
+    {
+        /* No info known. Use default settings */
+        page_scan_rep_mode = HCI_PAGE_SCAN_REP_MODE_R1;
+        page_scan_mode = HCI_MANDATARY_PAGE_SCAN_MODE;
+
+        clock_offset = (p_dev_rec) ? p_dev_rec->clock_offset : 0;
+    }
+
+    if (!btsnd_hcic_create_conn (p_lcb->remote_bd_addr,
+                                 ( HCI_PKT_TYPES_MASK_DM1 | HCI_PKT_TYPES_MASK_DH1
+                                 | HCI_PKT_TYPES_MASK_DM3 | HCI_PKT_TYPES_MASK_DH3
+                                 | HCI_PKT_TYPES_MASK_DM5 | HCI_PKT_TYPES_MASK_DH5 ),
+                                 page_scan_rep_mode,
+                                 page_scan_mode,
+                                 clock_offset,
+                                 allow_switch))
+
+    {
+        L2CAP_TRACE_ERROR ("L2CAP - no buffer for l2cu_create_conn");
+        l2cu_release_lcb (p_lcb);
+        return (FALSE);
+    }
+
+    btm_acl_update_busy_level (BTM_BLI_PAGE_EVT);
+
+    alarm_set_on_queue(p_lcb->l2c_lcb_timer,
+                       L2CAP_LINK_CONNECT_TIMEOUT_MS,
+                       l2c_lcb_timer_timeout, p_lcb,
+                       btu_general_alarm_queue);
+
+    return (TRUE);
+}
+
+
+/*******************************************************************************
+**
+** Function         l2cu_find_lcb_by_state
+**
+** Description      Look through all active LCBs for a match based on the
+**                  LCB state.
+**
+** Returns          pointer to first matched LCB, or NULL if no match
+**
+*******************************************************************************/
+tL2C_LCB *l2cu_find_lcb_by_state (tL2C_LINK_STATE state)
+{
+    UINT16      i;
+    tL2C_LCB    *p_lcb = &l2cb.lcb_pool[0];
+
+    for (i = 0; i < MAX_L2CAP_LINKS; i++, p_lcb++)
+    {
+        if ((p_lcb->in_use) && (p_lcb->link_state == state))
+        {
+            return (p_lcb);
+        }
+    }
+
+    /* If here, no match found */
+    return (NULL);
+}
+
+
+/*******************************************************************************
+**
+** Function         l2cu_lcb_disconnecting
+**
+** Description      On each active lcb, check if the lcb is in disconnecting
+**                  state, or if there are no ccb's on the lcb (implying
+                    idle timeout is running), or if last ccb on the link
+                    is in disconnecting state.
+**
+** Returns          TRUE if any of above conditions met, FALSE otherwise
+**
+*******************************************************************************/
+BOOLEAN l2cu_lcb_disconnecting (void)
+{
+    tL2C_LCB    *p_lcb;
+    tL2C_CCB    *p_ccb;
+    UINT16      i;
+    BOOLEAN     status = FALSE;
+
+    p_lcb = &l2cb.lcb_pool[0];
+
+    for (i = 0; i < MAX_L2CAP_LINKS; i++, p_lcb++)
+    {
+        if (p_lcb->in_use)
+        {
+            /* no ccbs on lcb, or lcb is in disconnecting state */
+            if ((!p_lcb->ccb_queue.p_first_ccb) || (p_lcb->link_state == LST_DISCONNECTING))
+            {
+                status = TRUE;
+                break;
+            }
+            /* only one ccb left on lcb */
+            else if (p_lcb->ccb_queue.p_first_ccb == p_lcb->ccb_queue.p_last_ccb)
+            {
+                p_ccb = p_lcb->ccb_queue.p_first_ccb;
+
+                if ((p_ccb->in_use) &&
+                    ((p_ccb->chnl_state == CST_W4_L2CAP_DISCONNECT_RSP) ||
+                     (p_ccb->chnl_state == CST_W4_L2CA_DISCONNECT_RSP)))
+                {
+                    status = TRUE;
+                    break;
+                }
+            }
+        }
+    }
+    return status;
+}
+
+
+/*******************************************************************************
+**
+** Function         l2cu_set_acl_priority
+**
+** Description      Sets the transmission priority for a channel.
+**                  (For initial implementation only two values are valid.
+**                  L2CAP_PRIORITY_NORMAL and L2CAP_PRIORITY_HIGH).
+**
+** Returns          TRUE if a valid channel, else FALSE
+**
+*******************************************************************************/
+
+BOOLEAN l2cu_set_acl_priority (BD_ADDR bd_addr, UINT8 priority, BOOLEAN reset_after_rs)
+{
+    tL2C_LCB            *p_lcb;
+    UINT8               *pp;
+    UINT8                command[HCI_BRCM_ACL_PRIORITY_PARAM_SIZE];
+    UINT8                vs_param;
+
+    APPL_TRACE_EVENT("SET ACL PRIORITY %d", priority);
+
+    /* Find the link control block for the acl channel */
+    if ((p_lcb = l2cu_find_lcb_by_bd_addr(bd_addr, BT_TRANSPORT_BR_EDR)) == NULL)
+    {
+        L2CAP_TRACE_WARNING ("L2CAP - no LCB for L2CA_SetAclPriority");
+        return (FALSE);
+    }
+
+#ifndef BLUETOOTH_RTK_COEX
+    if (BTM_IS_BRCM_CONTROLLER())
+#endif
+    {
+        /* Called from above L2CAP through API; send VSC if changed */
+        if ((!reset_after_rs && (priority != p_lcb->acl_priority)) ||
+              /* Called because of a master/slave role switch; if high resend VSC */
+            ( reset_after_rs && p_lcb->acl_priority == L2CAP_PRIORITY_HIGH))
+        {
+            pp = command;
+
+            vs_param = (priority == L2CAP_PRIORITY_HIGH) ? HCI_BRCM_ACL_PRIORITY_HIGH : HCI_BRCM_ACL_PRIORITY_LOW;
+
+            UINT16_TO_STREAM (pp, p_lcb->handle);
+            UINT8_TO_STREAM  (pp, vs_param);
+
+#ifndef BLUETOOTH_RTK_COEX
+            BTM_VendorSpecificCommand (HCI_BRCM_SET_ACL_PRIORITY, HCI_BRCM_ACL_PRIORITY_PARAM_SIZE, command, NULL);
+#endif
+            /* Adjust lmp buffer allocation for this channel if priority changed */
+            if (p_lcb->acl_priority != priority)
+            {
+                p_lcb->acl_priority = priority;
+                l2c_link_adjust_allocation();
+            }
+        }
+    }
+    return(TRUE);
+}
+
+#if (L2CAP_NON_FLUSHABLE_PB_INCLUDED == TRUE)
+/******************************************************************************
+**
+** Function         l2cu_set_non_flushable_pbf
+**
+** Description      set L2CAP_PKT_START_NON_FLUSHABLE if controller supoorts
+**
+** Returns          void
+**
+*******************************************************************************/
+void l2cu_set_non_flushable_pbf (BOOLEAN is_supported)
+{
+    if (is_supported)
+        l2cb.non_flushable_pbf = (L2CAP_PKT_START_NON_FLUSHABLE << L2CAP_PKT_TYPE_SHIFT);
+    else
+        l2cb.non_flushable_pbf = (L2CAP_PKT_START << L2CAP_PKT_TYPE_SHIFT);
+}
+#endif
+
+/*******************************************************************************
+**
+** Function         l2cu_resubmit_pending_sec_req
+**
+** Description      This function is called when required security procedures
+**                  are completed and any pending requests can be re-submitted.
+**
+** Returns          void
+**
+*******************************************************************************/
+void l2cu_resubmit_pending_sec_req (BD_ADDR p_bda)
+{
+    tL2C_LCB        *p_lcb;
+    tL2C_CCB        *p_ccb;
+    tL2C_CCB        *p_next_ccb;
+    int             xx;
+
+    L2CAP_TRACE_DEBUG ("l2cu_resubmit_pending_sec_req  p_bda: 0x%08x", p_bda);
+
+    /* If we are called with a BDA, only resubmit for that BDA */
+    if (p_bda)
+    {
+        p_lcb = l2cu_find_lcb_by_bd_addr (p_bda, BT_TRANSPORT_BR_EDR);
+
+        /* If we don't have one, this is an error */
+        if (p_lcb)
+        {
+            /* For all channels, send the event through their FSMs */
+            for (p_ccb = p_lcb->ccb_queue.p_first_ccb; p_ccb; p_ccb = p_next_ccb)
+            {
+                p_next_ccb = p_ccb->p_next_ccb;
+                l2c_csm_execute (p_ccb, L2CEVT_SEC_RE_SEND_CMD, NULL);
+            }
+        }
+        else
+        {
+            L2CAP_TRACE_WARNING ("l2cu_resubmit_pending_sec_req - unknown BD_ADDR");
+        }
+    }
+    else
+    {
+        /* No BDA pasesed in, so check all links */
+        for (xx = 0, p_lcb = &l2cb.lcb_pool[0]; xx < MAX_L2CAP_LINKS; xx++, p_lcb++)
+        {
+            if (p_lcb->in_use)
+            {
+                /* For all channels, send the event through their FSMs */
+                for (p_ccb = p_lcb->ccb_queue.p_first_ccb; p_ccb; p_ccb = p_next_ccb)
+                {
+                    p_next_ccb = p_ccb->p_next_ccb;
+                    l2c_csm_execute (p_ccb, L2CEVT_SEC_RE_SEND_CMD, NULL);
+                }
+            }
+        }
+    }
+}
+
+#if L2CAP_CONFORMANCE_TESTING == TRUE
+/*******************************************************************************
+**
+** Function         l2cu_set_info_rsp_mask
+**
+** Description      This function allows the script wrapper to change the
+**                  info resp mask for conformance testing.
+**
+** Returns          pointer to CCB, or NULL if none
+**
+*******************************************************************************/
+void l2cu_set_info_rsp_mask (UINT32 mask)
+{
+    l2cb.test_info_resp = mask;
+}
+#endif  /* L2CAP_CONFORMANCE_TESTING */
+
+/*******************************************************************************
+**
+** Function         l2cu_adjust_out_mps
+**
+** Description      Sets our MPS based on current controller capabilities
+**
+** Returns          void
+**
+*******************************************************************************/
+void l2cu_adjust_out_mps (tL2C_CCB *p_ccb)
+{
+    UINT16 packet_size;
+
+    /* on the tx side MTU is selected based on packet size of the controller */
+    packet_size = btm_get_max_packet_size (p_ccb->p_lcb->remote_bd_addr);
+
+    if (packet_size <= (L2CAP_PKT_OVERHEAD + L2CAP_FCR_OVERHEAD + L2CAP_SDU_LEN_OVERHEAD + L2CAP_FCS_LEN))
+    {
+        /* something is very wrong */
+        L2CAP_TRACE_ERROR ("l2cu_adjust_out_mps bad packet size: %u  will use MPS: %u", packet_size, p_ccb->peer_cfg.fcr.mps);
+        p_ccb->tx_mps = p_ccb->peer_cfg.fcr.mps;
+    }
+    else
+    {
+        packet_size -= (L2CAP_PKT_OVERHEAD + L2CAP_FCR_OVERHEAD + L2CAP_SDU_LEN_OVERHEAD + L2CAP_FCS_LEN);
+
+        /* We try to negotiate MTU that each packet can be split into whole
+        number of max packets.  For example if link is 1.2 max packet size is 339 bytes.
+        At first calculate how many whole packets it is.  MAX L2CAP is 1691 + 4 overhead.
+        1695, that will be 5 Dh5 packets.  Now maximum L2CAP packet is
+        5 * 339 = 1695. Minus 4 bytes L2CAP header 1691.
+
+        For EDR 2.0 packet size is 1027.  So we better send RFCOMM packet as 1 3DH5 packet
+        1 * 1027 = 1027.  Minus 4 bytes L2CAP header 1023.  */
+        if (p_ccb->peer_cfg.fcr.mps >= packet_size)
+            p_ccb->tx_mps = p_ccb->peer_cfg.fcr.mps / packet_size * packet_size;
+        else
+            p_ccb->tx_mps = p_ccb->peer_cfg.fcr.mps;
+
+        L2CAP_TRACE_DEBUG ("l2cu_adjust_out_mps use %d   Based on peer_cfg.fcr.mps: %u  packet_size: %u",
+                            p_ccb->tx_mps, p_ccb->peer_cfg.fcr.mps, packet_size);
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         l2cu_initialize_fixed_ccb
+**
+** Description      Initialize a fixed channel's CCB
+**
+** Returns          TRUE or FALSE
+**
+*******************************************************************************/
+BOOLEAN l2cu_initialize_fixed_ccb (tL2C_LCB *p_lcb, UINT16 fixed_cid, tL2CAP_FCR_OPTS *p_fcr)
+{
+#if (L2CAP_NUM_FIXED_CHNLS > 0)
+    tL2C_CCB    *p_ccb;
+
+    /* If we already have a CCB, then simply return */
+    p_ccb = p_lcb->p_fixed_ccbs[fixed_cid - L2CAP_FIRST_FIXED_CHNL];
+    if ((p_ccb != NULL) && p_ccb->in_use) {
+        /*
+         * NOTE: The "in_use" check is needed to ignore leftover entries
+         * that have been already released by l2cu_release_ccb().
+         */
+        return (TRUE);
+    }
+
+    if ((p_ccb = l2cu_allocate_ccb (NULL, 0)) == NULL)
+        return (FALSE);
+
+    alarm_cancel(p_lcb->l2c_lcb_timer);
+
+    /* Set CID for the connection */
+    p_ccb->local_cid  = fixed_cid;
+    p_ccb->remote_cid = fixed_cid;
+
+    p_ccb->is_flushable = FALSE;
+
+    if (p_fcr)
+    {
+        /* Set the FCR parameters. For now, we will use default pools */
+        p_ccb->our_cfg.fcr = p_ccb->peer_cfg.fcr = *p_fcr;
+
+        p_ccb->ertm_info.fcr_rx_buf_size  = L2CAP_FCR_RX_BUF_SIZE;
+        p_ccb->ertm_info.fcr_tx_buf_size  = L2CAP_FCR_TX_BUF_SIZE;
+        p_ccb->ertm_info.user_rx_buf_size = L2CAP_USER_RX_BUF_SIZE;
+        p_ccb->ertm_info.user_tx_buf_size = L2CAP_USER_TX_BUF_SIZE;
+
+        p_ccb->fcrb.max_held_acks = p_fcr->tx_win_sz / 3;
+    }
+
+    /* Link ccb to lcb and lcb to ccb */
+    p_lcb->p_fixed_ccbs[fixed_cid - L2CAP_FIRST_FIXED_CHNL] = p_ccb;
+    p_ccb->p_lcb = p_lcb;
+
+    /* There is no configuration, so if the link is up, the channel is up */
+    if (p_lcb->link_state == LST_CONNECTED)
+        p_ccb->chnl_state = CST_OPEN;
+
+    /* Set the default idle timeout value to use */
+    p_ccb->fixed_chnl_idle_tout = l2cb.fixed_reg[fixed_cid - L2CAP_FIRST_FIXED_CHNL].default_idle_tout;
+#endif
+    return (TRUE);
+}
+
+/*******************************************************************************
+**
+** Function         l2cu_no_dynamic_ccbs
+**
+** Description      Handles the case when there are no more dynamic CCBs. If there
+**                  are any fixed CCBs, start the longest of the fixed CCB timeouts,
+**                  otherwise start the default link idle timeout or disconnect.
+**
+** Returns          void
+**
+*******************************************************************************/
+void l2cu_no_dynamic_ccbs (tL2C_LCB *p_lcb)
+{
+    tBTM_STATUS     rc;
+    period_ms_t     timeout_ms = p_lcb->idle_timeout * 1000;
+    bool            start_timeout = true;
+
+#if (L2CAP_NUM_FIXED_CHNLS > 0)
+    int         xx;
+
+    for (xx = 0; xx < L2CAP_NUM_FIXED_CHNLS; xx++)
+    {
+        if ((p_lcb->p_fixed_ccbs[xx] != NULL) &&
+            (p_lcb->p_fixed_ccbs[xx]->fixed_chnl_idle_tout * 1000 > timeout_ms)) {
+            timeout_ms = p_lcb->p_fixed_ccbs[xx]->fixed_chnl_idle_tout * 1000;
+        }
+    }
+#endif
+
+    /* If the link is pairing, do not mess with the timeouts */
+    if (p_lcb->is_bonding)
+        return;
+
+    if (timeout_ms == 0)
+    {
+        L2CAP_TRACE_DEBUG ("l2cu_no_dynamic_ccbs() IDLE timer 0, disconnecting link");
+
+        rc = btm_sec_disconnect (p_lcb->handle, HCI_ERR_PEER_USER);
+        if (rc == BTM_CMD_STARTED)
+        {
+            l2cu_process_fixed_disc_cback(p_lcb);
+            p_lcb->link_state = LST_DISCONNECTING;
+            timeout_ms = L2CAP_LINK_DISCONNECT_TIMEOUT_MS;
+        }
+        else if (rc == BTM_SUCCESS)
+        {
+            l2cu_process_fixed_disc_cback(p_lcb);
+            /* BTM SEC will make sure that link is release (probably after pairing is done) */
+            p_lcb->link_state = LST_DISCONNECTING;
+            start_timeout = false;
+        }
+        else if ( (p_lcb->is_bonding)
+            &&   (btsnd_hcic_disconnect (p_lcb->handle, HCI_ERR_PEER_USER)) )
+        {
+            l2cu_process_fixed_disc_cback(p_lcb);
+            p_lcb->link_state = LST_DISCONNECTING;
+            timeout_ms = L2CAP_LINK_DISCONNECT_TIMEOUT_MS;
+        }
+        else
+        {
+            /* probably no buffer to send disconnect */
+            timeout_ms = BT_1SEC_TIMEOUT_MS;
+        }
+    }
+
+    if (start_timeout) {
+        L2CAP_TRACE_DEBUG("%s starting IDLE timeout: %d ms", __func__,
+                          timeout_ms);
+        alarm_set_on_queue(p_lcb->l2c_lcb_timer, timeout_ms,
+                           l2c_lcb_timer_timeout, p_lcb,
+                           btu_general_alarm_queue);
+    } else {
+        alarm_cancel(p_lcb->l2c_lcb_timer);
+    }
+}
+
+#if (L2CAP_NUM_FIXED_CHNLS > 0)
+/*******************************************************************************
+**
+** Function         l2cu_process_fixed_chnl_resp
+**
+** Description      handle a fixed channel response (or lack thereof)
+**                  if the link failed, or a fixed channel response was
+**                  not received, the bitfield is all zeros.
+**
+*******************************************************************************/
+void l2cu_process_fixed_chnl_resp (tL2C_LCB *p_lcb)
+{
+#if (BLE_INCLUDED == TRUE)
+     if (p_lcb->transport == BT_TRANSPORT_BR_EDR)
+     {
+         /* ignore all not assigned BR/EDR channels */
+         p_lcb->peer_chnl_mask[0] &= (L2CAP_FIXED_CHNL_SIG_BIT| \
+                                      L2CAP_FIXED_CHNL_CNCTLESS_BIT| \
+                                      L2CAP_FIXED_CHNL_SMP_BR_BIT);
+     }
+     else
+         p_lcb->peer_chnl_mask[0] = l2cb.l2c_ble_fixed_chnls_mask;
+#endif
+
+    /* Tell all registered fixed channels about the connection */
+    for (int xx = 0; xx < L2CAP_NUM_FIXED_CHNLS; xx++)
+    {
+#if BLE_INCLUDED == TRUE
+        /* skip sending LE fix channel callbacks on BR/EDR links */
+        if (p_lcb->transport == BT_TRANSPORT_BR_EDR &&
+            xx + L2CAP_FIRST_FIXED_CHNL >= L2CAP_ATT_CID &&
+            xx + L2CAP_FIRST_FIXED_CHNL <= L2CAP_SMP_CID)
+            continue;
+#endif
+        if (l2cb.fixed_reg[xx].pL2CA_FixedConn_Cb != NULL)
+        {
+            if (p_lcb->peer_chnl_mask[(xx + L2CAP_FIRST_FIXED_CHNL) / 8]
+                    & (1 << ((xx + L2CAP_FIRST_FIXED_CHNL) % 8)))
+            {
+                if (p_lcb->p_fixed_ccbs[xx])
+                    p_lcb->p_fixed_ccbs[xx]->chnl_state = CST_OPEN;
+#if BLE_INCLUDED == TRUE
+                (*l2cb.fixed_reg[xx].pL2CA_FixedConn_Cb)(xx + L2CAP_FIRST_FIXED_CHNL,
+                        p_lcb->remote_bd_addr, TRUE, 0, p_lcb->transport);
+#else
+                (*l2cb.fixed_reg[xx].pL2CA_FixedConn_Cb)(xx + L2CAP_FIRST_FIXED_CHNL,
+                        p_lcb->remote_bd_addr, TRUE, 0, BT_TRANSPORT_BR_EDR);
+#endif
+            }
+            else
+            {
+#if BLE_INCLUDED == TRUE
+                (*l2cb.fixed_reg[xx].pL2CA_FixedConn_Cb)(xx + L2CAP_FIRST_FIXED_CHNL,
+                        p_lcb->remote_bd_addr, FALSE, p_lcb->disc_reason, p_lcb->transport);
+#else
+                (*l2cb.fixed_reg[xx].pL2CA_FixedConn_Cb)(xx + L2CAP_FIRST_FIXED_CHNL,
+                        p_lcb->remote_bd_addr, FALSE, p_lcb->disc_reason, BT_TRANSPORT_BR_EDR);
+#endif
+
+                if (p_lcb->p_fixed_ccbs[xx])
+                {
+                    l2cu_release_ccb (p_lcb->p_fixed_ccbs[xx]);
+                    p_lcb->p_fixed_ccbs[xx] = NULL;
+                }
+            }
+        }
+    }
+}
+#endif
+
+
+/*******************************************************************************
+**
+** Function         l2cu_process_fixed_disc_cback
+**
+** Description      send l2cap fixed channel disconnection callback to application
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void l2cu_process_fixed_disc_cback (tL2C_LCB *p_lcb)
+{
+#if (L2CAP_NUM_FIXED_CHNLS > 0)
+
+    /* Select peer channels mask to use depending on transport */
+    UINT8 peer_channel_mask = p_lcb->peer_chnl_mask[0];
+
+    // For LE, reset the stored peer channel mask
+    if (p_lcb->transport == BT_TRANSPORT_LE)
+        p_lcb->peer_chnl_mask[0] = 0;
+
+    for (int xx = 0; xx < L2CAP_NUM_FIXED_CHNLS; xx++)
+    {
+        if (p_lcb->p_fixed_ccbs[xx])
+        {
+            if (p_lcb->p_fixed_ccbs[xx] != p_lcb->p_pending_ccb)
+            {
+                tL2C_CCB *p_l2c_chnl_ctrl_block;
+                p_l2c_chnl_ctrl_block = p_lcb->p_fixed_ccbs[xx];
+                p_lcb->p_fixed_ccbs[xx] = NULL;
+                l2cu_release_ccb(p_l2c_chnl_ctrl_block);
+#if BLE_INCLUDED == TRUE
+            (*l2cb.fixed_reg[xx].pL2CA_FixedConn_Cb)(xx + L2CAP_FIRST_FIXED_CHNL,
+                    p_lcb->remote_bd_addr, FALSE, p_lcb->disc_reason, p_lcb->transport);
+#else
+            (*l2cb.fixed_reg[xx].pL2CA_FixedConn_Cb)(xx + L2CAP_FIRST_FIXED_CHNL,
+                    p_lcb->remote_bd_addr, FALSE, p_lcb->disc_reason, BT_TRANSPORT_BR_EDR);
+#endif
+           }
+        }
+        else if ( (peer_channel_mask & (1 << (xx + L2CAP_FIRST_FIXED_CHNL)))
+               && (l2cb.fixed_reg[xx].pL2CA_FixedConn_Cb != NULL) )
+#if BLE_INCLUDED == TRUE
+            (*l2cb.fixed_reg[xx].pL2CA_FixedConn_Cb)(xx + L2CAP_FIRST_FIXED_CHNL,
+                    p_lcb->remote_bd_addr, FALSE, p_lcb->disc_reason, p_lcb->transport);
+#else
+            (*l2cb.fixed_reg[xx].pL2CA_FixedConn_Cb)(xx + L2CAP_FIRST_FIXED_CHNL,
+                    p_lcb->remote_bd_addr, FALSE, p_lcb->disc_reason, BT_TRANSPORT_BR_EDR);
+#endif
+    }
+#endif
+}
+
+#if (BLE_INCLUDED == TRUE)
+/*******************************************************************************
+**
+** Function         l2cu_send_peer_ble_par_req
+**
+** Description      Build and send a BLE parameter update request message
+**                  to the peer.
+**
+** Returns          void
+**
+*******************************************************************************/
+void l2cu_send_peer_ble_par_req (tL2C_LCB *p_lcb, UINT16 min_int, UINT16 max_int,
+        UINT16 latency, UINT16 timeout)
+{
+    BT_HDR  *p_buf;
+    UINT8   *p;
+
+    /* Create an identifier for this packet */
+    p_lcb->id++;
+    l2cu_adj_id (p_lcb, L2CAP_ADJ_ID);
+
+    if ((p_buf = l2cu_build_header (p_lcb, L2CAP_CMD_BLE_UPD_REQ_LEN,
+                    L2CAP_CMD_BLE_UPDATE_REQ, p_lcb->id)) == NULL )
+    {
+        L2CAP_TRACE_WARNING ("l2cu_send_peer_ble_par_req - no buffer");
+        return;
+    }
+
+    p = (UINT8 *)(p_buf + 1) + L2CAP_SEND_CMD_OFFSET + HCI_DATA_PREAMBLE_SIZE +
+                               L2CAP_PKT_OVERHEAD + L2CAP_CMD_OVERHEAD;
+
+    UINT16_TO_STREAM (p, min_int);
+    UINT16_TO_STREAM (p, max_int);
+    UINT16_TO_STREAM (p, latency);
+    UINT16_TO_STREAM (p, timeout);
+
+    l2c_link_check_send_pkts (p_lcb, NULL, p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         l2cu_send_peer_ble_par_rsp
+**
+** Description      Build and send a BLE parameter update response message
+**                  to the peer.
+**
+** Returns          void
+**
+*******************************************************************************/
+void l2cu_send_peer_ble_par_rsp (tL2C_LCB *p_lcb, UINT16 reason, UINT8 rem_id)
+{
+    BT_HDR  *p_buf;
+    UINT8   *p;
+
+    if ((p_buf = l2cu_build_header (p_lcb, L2CAP_CMD_BLE_UPD_RSP_LEN,
+                    L2CAP_CMD_BLE_UPDATE_RSP, rem_id)) == NULL )
+    {
+        L2CAP_TRACE_WARNING ("l2cu_send_peer_ble_par_rsp - no buffer");
+        return;
+    }
+
+    p = (UINT8 *)(p_buf + 1) + L2CAP_SEND_CMD_OFFSET + HCI_DATA_PREAMBLE_SIZE +
+                               L2CAP_PKT_OVERHEAD + L2CAP_CMD_OVERHEAD;
+
+    UINT16_TO_STREAM (p, reason);
+
+    l2c_link_check_send_pkts (p_lcb, NULL, p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         l2cu_send_peer_ble_credit_based_conn_req
+**
+** Description      Build and send a BLE packet to establish LE connection oriented
+**                  L2CAP channel.
+**
+** Returns          void
+**
+*******************************************************************************/
+void l2cu_send_peer_ble_credit_based_conn_req (tL2C_CCB *p_ccb)
+{
+    BT_HDR  *p_buf;
+    UINT8   *p;
+    tL2C_LCB *p_lcb = NULL;
+    UINT16 mtu;
+    UINT16 mps;
+    UINT16 initial_credit;
+
+    if (!p_ccb)
+        return;
+    p_lcb = p_ccb->p_lcb;
+
+    /* Create an identifier for this packet */
+    p_ccb->p_lcb->id++;
+    l2cu_adj_id(p_ccb->p_lcb, L2CAP_ADJ_ID);
+
+    p_ccb->local_id = p_ccb->p_lcb->id;
+
+    if ((p_buf = l2cu_build_header (p_lcb, L2CAP_CMD_BLE_CREDIT_BASED_CONN_REQ_LEN,
+                    L2CAP_CMD_BLE_CREDIT_BASED_CONN_REQ, p_lcb->id)) == NULL )
+    {
+        L2CAP_TRACE_WARNING ("l2cu_send_peer_ble_credit_based_conn_req - no buffer");
+        return;
+    }
+
+    p = (UINT8 *)(p_buf + 1) + L2CAP_SEND_CMD_OFFSET + HCI_DATA_PREAMBLE_SIZE +
+                               L2CAP_PKT_OVERHEAD + L2CAP_CMD_OVERHEAD;
+
+    mtu = p_ccb->local_conn_cfg.mtu;
+    mps = p_ccb->local_conn_cfg.mps;
+    initial_credit = p_ccb->local_conn_cfg.credits;
+
+    L2CAP_TRACE_DEBUG ("l2cu_send_peer_ble_credit_based_conn_req PSM:0x%04x local_cid:%d\
+                mtu:%d mps:%d initial_credit:%d", p_ccb->p_rcb->real_psm,\
+                p_ccb->local_cid, mtu, mps, initial_credit);
+
+    UINT16_TO_STREAM (p, p_ccb->p_rcb->real_psm);
+    UINT16_TO_STREAM (p, p_ccb->local_cid);
+    UINT16_TO_STREAM (p, mtu);
+    UINT16_TO_STREAM (p, mps);
+    UINT16_TO_STREAM (p, initial_credit);
+
+    l2c_link_check_send_pkts (p_lcb, NULL, p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         l2cu_reject_ble_connection
+**
+** Description      Build and send an L2CAP "Credit based connection res" message
+**                  to the peer. This function is called for non-success cases.
+**
+** Returns          void
+**
+*******************************************************************************/
+void l2cu_reject_ble_connection (tL2C_LCB *p_lcb, UINT8 rem_id, UINT16 result)
+{
+    BT_HDR  *p_buf;
+    UINT8   *p;
+
+    if ((p_buf = l2cu_build_header(p_lcb, L2CAP_CMD_BLE_CREDIT_BASED_CONN_RES_LEN,
+                    L2CAP_CMD_BLE_CREDIT_BASED_CONN_RES, rem_id)) == NULL )
+    {
+        L2CAP_TRACE_WARNING ("l2cu_reject_ble_connection - no buffer");
+        return;
+    }
+
+    p = (UINT8 *)(p_buf + 1) + L2CAP_SEND_CMD_OFFSET + HCI_DATA_PREAMBLE_SIZE +
+                               L2CAP_PKT_OVERHEAD + L2CAP_CMD_OVERHEAD;
+
+    UINT16_TO_STREAM (p, 0);                    /* Local CID of 0   */
+    UINT16_TO_STREAM (p, 0);                    /* MTU */
+    UINT16_TO_STREAM (p, 0);                    /* MPS */
+    UINT16_TO_STREAM (p, 0);                    /* initial credit */
+    UINT16_TO_STREAM (p, result);
+
+    l2c_link_check_send_pkts (p_lcb, NULL, p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         l2cu_send_peer_ble_credit_based_conn_res
+**
+** Description      Build and send an L2CAP "Credit based connection res" message
+**                  to the peer. This function is called in case of success.
+**
+** Returns          void
+**
+*******************************************************************************/
+void l2cu_send_peer_ble_credit_based_conn_res (tL2C_CCB *p_ccb, UINT16 result)
+{
+    BT_HDR  *p_buf;
+    UINT8   *p;
+
+    L2CAP_TRACE_DEBUG ("l2cu_send_peer_ble_credit_based_conn_res");
+    if ((p_buf = l2cu_build_header(p_ccb->p_lcb, L2CAP_CMD_BLE_CREDIT_BASED_CONN_RES_LEN,
+                    L2CAP_CMD_BLE_CREDIT_BASED_CONN_RES, p_ccb->remote_id)) == NULL )
+    {
+        L2CAP_TRACE_WARNING ("l2cu_send_peer_ble_credit_based_conn_res - no buffer");
+        return;
+    }
+
+    p = (UINT8 *)(p_buf + 1) + L2CAP_SEND_CMD_OFFSET + HCI_DATA_PREAMBLE_SIZE +
+                               L2CAP_PKT_OVERHEAD + L2CAP_CMD_OVERHEAD;
+
+    UINT16_TO_STREAM (p, p_ccb->local_cid);                      /* Local CID */
+    UINT16_TO_STREAM (p, p_ccb->local_conn_cfg.mtu);             /* MTU */
+    UINT16_TO_STREAM (p, p_ccb->local_conn_cfg.mps);             /* MPS */
+    UINT16_TO_STREAM (p, p_ccb->local_conn_cfg.credits);         /* initial credit */
+    UINT16_TO_STREAM (p, result);
+
+    l2c_link_check_send_pkts (p_ccb->p_lcb, NULL, p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         l2cu_send_peer_ble_flow_control_credit
+**
+** Description      Build and send a BLE packet to give credits to peer device
+**                  for LE connection oriented L2CAP channel.
+**
+** Returns          void
+**
+*******************************************************************************/
+void l2cu_send_peer_ble_flow_control_credit(tL2C_CCB *p_ccb, UINT16 credit_value)
+{
+    BT_HDR  *p_buf;
+    UINT8   *p;
+    tL2C_LCB *p_lcb = NULL;
+
+    if (!p_ccb)
+        return;
+    p_lcb = p_ccb->p_lcb;
+
+    /* Create an identifier for this packet */
+    p_ccb->p_lcb->id++;
+    l2cu_adj_id(p_ccb->p_lcb, L2CAP_ADJ_ID);
+
+    p_ccb->local_id = p_ccb->p_lcb->id;
+
+    if ((p_buf = l2cu_build_header (p_lcb, L2CAP_CMD_BLE_FLOW_CTRL_CREDIT_LEN,
+                    L2CAP_CMD_BLE_FLOW_CTRL_CREDIT, p_lcb->id)) == NULL )
+    {
+        L2CAP_TRACE_WARNING ("l2cu_send_peer_ble_credit_based_conn_req - no buffer");
+        return;
+    }
+
+    p = (UINT8 *)(p_buf + 1) + L2CAP_SEND_CMD_OFFSET + HCI_DATA_PREAMBLE_SIZE +
+                               L2CAP_PKT_OVERHEAD + L2CAP_CMD_OVERHEAD;
+
+    UINT16_TO_STREAM (p, p_ccb->local_cid);
+    UINT16_TO_STREAM (p, credit_value);
+
+    l2c_link_check_send_pkts (p_lcb, NULL, p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         l2cu_send_peer_ble_credit_based_conn_req
+**
+** Description      Build and send a BLE packet to disconnect LE connection oriented
+**                  L2CAP channel.
+**
+** Returns          void
+**
+*******************************************************************************/
+void l2cu_send_peer_ble_credit_based_disconn_req(tL2C_CCB *p_ccb)
+{
+    BT_HDR  *p_buf;
+    UINT8   *p;
+    tL2C_LCB *p_lcb = NULL;
+    L2CAP_TRACE_DEBUG ("%s",__func__);
+
+    if (!p_ccb)
+        return;
+    p_lcb = p_ccb->p_lcb;
+
+    /* Create an identifier for this packet */
+    p_ccb->p_lcb->id++;
+    l2cu_adj_id(p_ccb->p_lcb, L2CAP_ADJ_ID);
+
+    p_ccb->local_id = p_ccb->p_lcb->id;
+     if ((p_buf = l2cu_build_header (p_lcb, L2CAP_DISC_REQ_LEN,
+                    L2CAP_CMD_DISC_REQ, p_lcb->id)) == NULL )
+    {
+        L2CAP_TRACE_WARNING ("l2cu_send_peer_ble_credit_based_disconn_req - no buffer");
+        return;
+    }
+
+    p = (UINT8 *)(p_buf + 1) + L2CAP_SEND_CMD_OFFSET + HCI_DATA_PREAMBLE_SIZE +
+                               L2CAP_PKT_OVERHEAD + L2CAP_CMD_OVERHEAD;
+
+    UINT16_TO_STREAM (p, p_ccb->remote_cid);
+    UINT16_TO_STREAM (p,p_ccb->local_cid);
+
+    l2c_link_check_send_pkts (p_lcb, NULL, p_buf);
+}
+#endif /* BLE_INCLUDED == TRUE */
+
+
+/*******************************************************************************
+** Functions used by both Full and Light Stack
+********************************************************************************/
+
+/*******************************************************************************
+**
+** Function         l2cu_find_lcb_by_handle
+**
+** Description      Look through all active LCBs for a match based on the
+**                  HCI handle.
+**
+** Returns          pointer to matched LCB, or NULL if no match
+**
+*******************************************************************************/
+tL2C_LCB  *l2cu_find_lcb_by_handle (UINT16 handle)
+{
+    int         xx;
+    tL2C_LCB    *p_lcb = &l2cb.lcb_pool[0];
+
+    for (xx = 0; xx < MAX_L2CAP_LINKS; xx++, p_lcb++)
+    {
+        if ((p_lcb->in_use) && (p_lcb->handle == handle))
+        {
+            return (p_lcb);
+        }
+    }
+
+    /* If here, no match found */
+    return (NULL);
+}
+
+/*******************************************************************************
+**
+** Function         l2cu_find_ccb_by_cid
+**
+** Description      Look through all active CCBs on a link for a match based
+**                  on the local CID. If passed the link pointer is NULL, all
+**                  active links are searched.
+**
+** Returns          pointer to matched CCB, or NULL if no match
+**
+*******************************************************************************/
+tL2C_CCB *l2cu_find_ccb_by_cid (tL2C_LCB *p_lcb, UINT16 local_cid)
+{
+    tL2C_CCB    *p_ccb = NULL;
+#if (L2CAP_UCD_INCLUDED == TRUE)
+    UINT8 xx;
+#endif
+
+    if (local_cid >= L2CAP_BASE_APPL_CID)
+    {
+        /* find the associated CCB by "index" */
+        local_cid -= L2CAP_BASE_APPL_CID;
+
+        if (local_cid >= MAX_L2CAP_CHANNELS)
+            return NULL;
+
+        p_ccb = l2cb.ccb_pool + local_cid;
+
+        /* make sure the CCB is in use */
+        if (!p_ccb->in_use)
+        {
+            p_ccb = NULL;
+        }
+        /* make sure it's for the same LCB */
+        else if (p_lcb && p_lcb != p_ccb->p_lcb)
+        {
+            p_ccb = NULL;
+        }
+    }
+#if (L2CAP_UCD_INCLUDED == TRUE)
+    else
+    {
+        /* searching fixed channel */
+        p_ccb = l2cb.ccb_pool;
+        for ( xx = 0; xx < MAX_L2CAP_CHANNELS; xx++ )
+        {
+            if ((p_ccb->local_cid == local_cid)
+              &&(p_ccb->in_use)
+              &&(p_lcb == p_ccb->p_lcb))
+                break;
+            else
+                p_ccb++;
+        }
+        if ( xx >= MAX_L2CAP_CHANNELS )
+            return NULL;
+    }
+#endif
+
+    return (p_ccb);
+}
+
+#if (L2CAP_ROUND_ROBIN_CHANNEL_SERVICE == TRUE)
+
+/******************************************************************************
+**
+** Function         l2cu_get_next_channel_in_rr
+**
+** Description      get the next channel to send on a link. It also adjusts the
+**                  CCB queue to do a basic priority and round-robin scheduling.
+**
+** Returns          pointer to CCB or NULL
+**
+*******************************************************************************/
+static tL2C_CCB *l2cu_get_next_channel_in_rr(tL2C_LCB *p_lcb)
+{
+    tL2C_CCB    *p_serve_ccb = NULL;
+    tL2C_CCB    *p_ccb;
+
+    int i, j;
+
+    /* scan all of priority until finding a channel to serve */
+    for ( i = 0; (i < L2CAP_NUM_CHNL_PRIORITY)&&(!p_serve_ccb); i++ )
+    {
+        /* scan all channel within serving priority group until finding a channel to serve */
+        for ( j = 0; (j < p_lcb->rr_serv[p_lcb->rr_pri].num_ccb)&&(!p_serve_ccb); j++)
+        {
+            /* scaning from next serving channel */
+            p_ccb = p_lcb->rr_serv[p_lcb->rr_pri].p_serve_ccb;
+
+            if (!p_ccb)
+            {
+                L2CAP_TRACE_ERROR("p_serve_ccb is NULL, rr_pri=%d", p_lcb->rr_pri);
+                return NULL;
+            }
+
+            L2CAP_TRACE_DEBUG("RR scan pri=%d, lcid=0x%04x, q_cout=%d",
+                              p_ccb->ccb_priority, p_ccb->local_cid,
+                              fixed_queue_length(p_ccb->xmit_hold_q));
+
+            /* store the next serving channel */
+            /* this channel is the last channel of its priority group */
+            if (( p_ccb->p_next_ccb == NULL )
+              ||( p_ccb->p_next_ccb->ccb_priority != p_ccb->ccb_priority ))
+            {
+                /* next serving channel is set to the first channel in the group */
+                p_lcb->rr_serv[p_lcb->rr_pri].p_serve_ccb = p_lcb->rr_serv[p_lcb->rr_pri].p_first_ccb;
+            }
+            else
+            {
+                /* next serving channel is set to the next channel in the group */
+                p_lcb->rr_serv[p_lcb->rr_pri].p_serve_ccb = p_ccb->p_next_ccb;
+            }
+
+            if (p_ccb->chnl_state != CST_OPEN)
+                continue;
+
+            if (p_ccb->p_lcb->transport == BT_TRANSPORT_LE)
+            {
+                L2CAP_TRACE_DEBUG("%s : Connection oriented channel",__func__);
+                if (fixed_queue_is_empty(p_ccb->xmit_hold_q))
+                    continue;
+
+            }
+            else
+            {
+                /* eL2CAP option in use */
+                if (p_ccb->peer_cfg.fcr.mode != L2CAP_FCR_BASIC_MODE)
+                {
+                    if (p_ccb->fcrb.wait_ack || p_ccb->fcrb.remote_busy)
+                        continue;
+
+                    if (fixed_queue_is_empty(p_ccb->fcrb.retrans_q))
+                    {
+                        if (fixed_queue_is_empty(p_ccb->xmit_hold_q))
+                            continue;
+
+                        /* If in eRTM mode, check for window closure */
+                        if ( (p_ccb->peer_cfg.fcr.mode == L2CAP_FCR_ERTM_MODE) && (l2c_fcr_is_flow_controlled (p_ccb)) )
+                            continue;
+                    }
+                }
+                else
+                {
+                    if (fixed_queue_is_empty(p_ccb->xmit_hold_q))
+                        continue;
+                }
+            }
+
+            /* found a channel to serve */
+            p_serve_ccb = p_ccb;
+            /* decrease quota of its priority group */
+            p_lcb->rr_serv[p_lcb->rr_pri].quota--;
+        }
+
+        /* if there is no more quota of the priority group or no channel to have data to send */
+        if ((p_lcb->rr_serv[p_lcb->rr_pri].quota == 0)||(!p_serve_ccb))
+        {
+            /* serve next priority group */
+            p_lcb->rr_pri = (p_lcb->rr_pri + 1) % L2CAP_NUM_CHNL_PRIORITY;
+            /* initialize its quota */
+            p_lcb->rr_serv[p_lcb->rr_pri].quota = L2CAP_GET_PRIORITY_QUOTA(p_lcb->rr_pri);
+        }
+    }
+
+    if (p_serve_ccb)
+    {
+        L2CAP_TRACE_DEBUG("RR service pri=%d, quota=%d, lcid=0x%04x",
+                            p_serve_ccb->ccb_priority,
+                            p_lcb->rr_serv[p_serve_ccb->ccb_priority].quota,
+                            p_serve_ccb->local_cid );
+    }
+
+    return p_serve_ccb;
+}
+
+#else /* (L2CAP_ROUND_ROBIN_CHANNEL_SERVICE == TRUE) */
+
+/******************************************************************************
+**
+** Function         l2cu_get_next_channel
+**
+** Description      get the next channel to send on a link bassed on priority
+**                  scheduling.
+**
+** Returns          pointer to CCB or NULL
+**
+*******************************************************************************/
+static tL2C_CCB *l2cu_get_next_channel(tL2C_LCB *p_lcb)
+{
+    tL2C_CCB    *p_ccb;
+
+    /* Get the first CCB with data to send.
+    */
+    for (p_ccb = p_lcb->ccb_queue.p_first_ccb; p_ccb; p_ccb = p_ccb->p_next_ccb)
+    {
+        if (p_ccb->chnl_state != CST_OPEN)
+            continue;
+
+        if (p_ccb->fcrb.wait_ack || p_ccb->fcrb.remote_busy)
+            continue;
+
+        if (!fixed_queue_is_empty(p_ccb->fcrb.retrans_q))
+            return p_ccb;
+
+        if (fixed_queue_is_empty(p_ccb->xmit_hold_q))
+            continue;
+
+        /* If in eRTM mode, check for window closure */
+        if ( (p_ccb->peer_cfg.fcr.mode == L2CAP_FCR_ERTM_MODE) && (l2c_fcr_is_flow_controlled (p_ccb)) )
+            continue;
+
+        /* If here, we found someone */
+        return p_ccb;
+    }
+
+    return NULL;
+}
+#endif /* (L2CAP_ROUND_ROBIN_CHANNEL_SERVICE == TRUE) */
+
+/******************************************************************************
+**
+** Function         l2cu_get_next_buffer_to_send
+**
+** Description      get the next buffer to send on a link. It also adjusts the
+**                  CCB queue to do a basic priority and round-robin scheduling.
+**
+** Returns          pointer to buffer or NULL
+**
+*******************************************************************************/
+BT_HDR *l2cu_get_next_buffer_to_send (tL2C_LCB *p_lcb)
+{
+    tL2C_CCB    *p_ccb;
+    BT_HDR      *p_buf;
+
+    /* Highest priority are fixed channels */
+#if (L2CAP_NUM_FIXED_CHNLS > 0)
+    int         xx;
+
+    for (xx = 0; xx < L2CAP_NUM_FIXED_CHNLS; xx++)
+    {
+        if ((p_ccb = p_lcb->p_fixed_ccbs[xx]) == NULL)
+            continue;
+
+        /* eL2CAP option in use */
+        if (p_ccb->peer_cfg.fcr.mode != L2CAP_FCR_BASIC_MODE)
+        {
+            if (p_ccb->fcrb.wait_ack || p_ccb->fcrb.remote_busy)
+                continue;
+
+            /* No more checks needed if sending from the reatransmit queue */
+            if (fixed_queue_is_empty(p_ccb->fcrb.retrans_q))
+            {
+                if (fixed_queue_is_empty(p_ccb->xmit_hold_q))
+                    continue;
+
+                /* If in eRTM mode, check for window closure */
+                if ( (p_ccb->peer_cfg.fcr.mode == L2CAP_FCR_ERTM_MODE) && (l2c_fcr_is_flow_controlled (p_ccb)) )
+                    continue;
+            }
+
+            if ((p_buf = l2c_fcr_get_next_xmit_sdu_seg(p_ccb, 0)) != NULL)
+            {
+                l2cu_check_channel_congestion (p_ccb);
+                l2cu_set_acl_hci_header (p_buf, p_ccb);
+                return (p_buf);
+            }
+        }
+        else
+        {
+            if (!fixed_queue_is_empty(p_ccb->xmit_hold_q))
+            {
+                p_buf = (BT_HDR *)fixed_queue_try_dequeue(p_ccb->xmit_hold_q);
+                if(NULL == p_buf)
+                {
+                    L2CAP_TRACE_ERROR("l2cu_get_buffer_to_send: No data to be sent");
+                    return (NULL);
+                }
+                /* send tx complete */
+                if (l2cb.fixed_reg[xx].pL2CA_FixedTxComplete_Cb)
+                    (*l2cb.fixed_reg[xx].pL2CA_FixedTxComplete_Cb)(p_ccb->local_cid, 1);
+
+                l2cu_check_channel_congestion (p_ccb);
+                l2cu_set_acl_hci_header (p_buf, p_ccb);
+                return (p_buf);
+            }
+        }
+    }
+#endif
+
+#if (L2CAP_ROUND_ROBIN_CHANNEL_SERVICE == TRUE)
+    /* get next serving channel in round-robin */
+    p_ccb  = l2cu_get_next_channel_in_rr( p_lcb );
+#else
+    p_ccb  = l2cu_get_next_channel( p_lcb );
+#endif
+
+    /* Return if no buffer */
+    if (p_ccb == NULL)
+        return (NULL);
+
+    if (p_ccb->p_lcb->transport == BT_TRANSPORT_LE)
+    {
+        /* Check credits */
+        if(p_ccb->peer_conn_cfg.credits == 0)
+        {
+            L2CAP_TRACE_DEBUG("%s No credits to send packets",__func__);
+            return NULL;
+        }
+        if ((p_buf = l2c_lcc_get_next_xmit_sdu_seg(p_ccb, 0)) == NULL)
+            return (NULL);
+
+        p_ccb->peer_conn_cfg.credits--;
+    }
+    else
+    {
+        if (p_ccb->peer_cfg.fcr.mode != L2CAP_FCR_BASIC_MODE)
+        {
+            if ((p_buf = l2c_fcr_get_next_xmit_sdu_seg(p_ccb, 0)) == NULL)
+                return (NULL);
+        }
+        else
+        {
+            p_buf = (BT_HDR *)fixed_queue_try_dequeue(p_ccb->xmit_hold_q);
+            if(NULL == p_buf)
+            {
+                L2CAP_TRACE_ERROR("l2cu_get_buffer_to_send() #2: No data to be sent");
+                return (NULL);
+            }
+        }
+    }
+
+    if ( p_ccb->p_rcb && p_ccb->p_rcb->api.pL2CA_TxComplete_Cb && (p_ccb->peer_cfg.fcr.mode != L2CAP_FCR_ERTM_MODE) )
+        (*p_ccb->p_rcb->api.pL2CA_TxComplete_Cb)(p_ccb->local_cid, 1);
+
+
+    l2cu_check_channel_congestion (p_ccb);
+
+    l2cu_set_acl_hci_header (p_buf, p_ccb);
+
+    return (p_buf);
+}
+
+/******************************************************************************
+**
+** Function         l2cu_set_acl_hci_header
+**
+** Description      Set HCI handle for ACL packet
+**
+** Returns          None
+**
+*******************************************************************************/
+void l2cu_set_acl_hci_header (BT_HDR *p_buf, tL2C_CCB *p_ccb)
+{
+    UINT8       *p;
+
+    /* Set the pointer to the beginning of the data minus 4 bytes for the packet header */
+    p = (UINT8 *)(p_buf + 1) + p_buf->offset - HCI_DATA_PREAMBLE_SIZE;
+
+#if (BLE_INCLUDED == TRUE)
+    if (p_ccb->p_lcb->transport == BT_TRANSPORT_LE)
+    {
+        UINT16_TO_STREAM (p, p_ccb->p_lcb->handle | (L2CAP_PKT_START_NON_FLUSHABLE << L2CAP_PKT_TYPE_SHIFT));
+
+        uint16_t acl_data_size = controller_get_interface()->get_acl_data_size_ble();
+        /* The HCI transport will segment the buffers. */
+        if (p_buf->len > acl_data_size)
+        {
+            UINT16_TO_STREAM (p, acl_data_size);
+        }
+        else
+        {
+            UINT16_TO_STREAM (p, p_buf->len);
+        }
+    } /* (BLE_INCLUDED == TRUE) */
+    else
+#endif
+    {
+#if (L2CAP_NON_FLUSHABLE_PB_INCLUDED == TRUE)
+        if ( (((p_buf->layer_specific & L2CAP_FLUSHABLE_MASK) == L2CAP_FLUSHABLE_CH_BASED) && (p_ccb->is_flushable))
+                || ((p_buf->layer_specific & L2CAP_FLUSHABLE_MASK) == L2CAP_FLUSHABLE_PKT) )
+        {
+            UINT16_TO_STREAM (p, p_ccb->p_lcb->handle | (L2CAP_PKT_START << L2CAP_PKT_TYPE_SHIFT));
+        }
+        else
+        {
+            UINT16_TO_STREAM (p, p_ccb->p_lcb->handle | l2cb.non_flushable_pbf);
+        }
+#else
+        UINT16_TO_STREAM (p, p_ccb->p_lcb->handle | (L2CAP_PKT_START << L2CAP_PKT_TYPE_SHIFT));
+#endif
+
+        uint16_t acl_data_size = controller_get_interface()->get_acl_data_size_classic();
+        /* The HCI transport will segment the buffers. */
+        if (p_buf->len > acl_data_size)
+        {
+            UINT16_TO_STREAM (p, acl_data_size);
+        }
+        else
+        {
+            UINT16_TO_STREAM (p, p_buf->len);
+        }
+    }
+    p_buf->offset -= HCI_DATA_PREAMBLE_SIZE;
+    p_buf->len    += HCI_DATA_PREAMBLE_SIZE;
+}
+
+/******************************************************************************
+**
+** Function         l2cu_check_channel_congestion
+**
+** Description      check if any change in congestion status
+**
+** Returns          None
+**
+*******************************************************************************/
+void l2cu_check_channel_congestion (tL2C_CCB *p_ccb)
+{
+    size_t q_count = fixed_queue_length(p_ccb->xmit_hold_q);
+
+#if (L2CAP_UCD_INCLUDED == TRUE)
+    if ( p_ccb->local_cid == L2CAP_CONNECTIONLESS_CID )
+    {
+        q_count += fixed_queue_length(p_ccb->p_lcb->ucd_out_sec_pending_q);
+    }
+#endif
+    /* If the CCB queue limit is subject to a quota, check for congestion */
+    /* if this channel has outgoing traffic */
+    if (p_ccb->buff_quota != 0)
+    {
+        /* If this channel was congested */
+        if ( p_ccb->cong_sent )
+        {
+            /* If the channel is not congested now, tell the app */
+            if (q_count <= (p_ccb->buff_quota / 2))
+            {
+                p_ccb->cong_sent = FALSE;
+                if (p_ccb->p_rcb && p_ccb->p_rcb->api.pL2CA_CongestionStatus_Cb)
+                {
+                    L2CAP_TRACE_DEBUG ("L2CAP - Calling CongestionStatus_Cb (FALSE), CID: 0x%04x  xmit_hold_q.count: %u  buff_quota: %u",
+                                      p_ccb->local_cid, q_count, p_ccb->buff_quota);
+
+                    /* Prevent recursive calling */
+                    l2cb.is_cong_cback_context = TRUE;
+                    (*p_ccb->p_rcb->api.pL2CA_CongestionStatus_Cb)(p_ccb->local_cid, FALSE);
+                    l2cb.is_cong_cback_context = FALSE;
+                }
+#if (L2CAP_UCD_INCLUDED == TRUE)
+                else if ( p_ccb->p_rcb && p_ccb->local_cid == L2CAP_CONNECTIONLESS_CID )
+                {
+                    if ( p_ccb->p_rcb->ucd.cb_info.pL2CA_UCD_Congestion_Status_Cb )
+                    {
+                        L2CAP_TRACE_DEBUG ("L2CAP - Calling UCD CongestionStatus_Cb (FALSE), SecPendingQ:%u,XmitQ:%u,Quota:%u",
+                                           fixed_queue_length(p_ccb->p_lcb->ucd_out_sec_pending_q),
+                                           fixed_queue_length(p_ccb->xmit_hold_q),
+                                           p_ccb->buff_quota);
+                        p_ccb->p_rcb->ucd.cb_info.pL2CA_UCD_Congestion_Status_Cb( p_ccb->p_lcb->remote_bd_addr, FALSE );
+                    }
+                }
+#endif
+#if (L2CAP_NUM_FIXED_CHNLS > 0)
+                else
+                {
+                    UINT8 xx;
+                    for (xx = 0; xx < L2CAP_NUM_FIXED_CHNLS; xx ++)
+                    {
+                        if (p_ccb->p_lcb->p_fixed_ccbs[xx] == p_ccb)
+                        {
+                            if (l2cb.fixed_reg[xx].pL2CA_FixedCong_Cb != NULL)
+                                (* l2cb.fixed_reg[xx].pL2CA_FixedCong_Cb)(p_ccb->p_lcb->remote_bd_addr, FALSE);
+                            break;
+                        }
+                    }
+                }
+#endif
+            }
+        }
+        else
+        {
+            /* If this channel was not congested but it is congested now, tell the app */
+            if (q_count > p_ccb->buff_quota)
+            {
+                p_ccb->cong_sent = TRUE;
+                if (p_ccb->p_rcb && p_ccb->p_rcb->api.pL2CA_CongestionStatus_Cb)
+                {
+                    L2CAP_TRACE_DEBUG ("L2CAP - Calling CongestionStatus_Cb (TRUE),CID:0x%04x,XmitQ:%u,Quota:%u",
+                        p_ccb->local_cid, q_count, p_ccb->buff_quota);
+
+                    (*p_ccb->p_rcb->api.pL2CA_CongestionStatus_Cb)(p_ccb->local_cid, TRUE);
+                }
+#if (L2CAP_UCD_INCLUDED == TRUE)
+                else if ( p_ccb->p_rcb && p_ccb->local_cid == L2CAP_CONNECTIONLESS_CID )
+                {
+                    if ( p_ccb->p_rcb->ucd.cb_info.pL2CA_UCD_Congestion_Status_Cb )
+                    {
+                        L2CAP_TRACE_DEBUG("L2CAP - Calling UCD CongestionStatus_Cb (TRUE), SecPendingQ:%u,XmitQ:%u,Quota:%u",
+                                          fixed_queue_length(p_ccb->p_lcb->ucd_out_sec_pending_q),
+                                          fixed_queue_length(p_ccb->xmit_hold_q),
+                                          p_ccb->buff_quota);
+                        p_ccb->p_rcb->ucd.cb_info.pL2CA_UCD_Congestion_Status_Cb( p_ccb->p_lcb->remote_bd_addr, TRUE );
+                    }
+                }
+#endif
+#if (L2CAP_NUM_FIXED_CHNLS > 0)
+                else
+                {
+                    UINT8 xx;
+                    for (xx = 0; xx < L2CAP_NUM_FIXED_CHNLS; xx ++)
+                    {
+                        if (p_ccb->p_lcb->p_fixed_ccbs[xx] == p_ccb)
+                        {
+                            if (l2cb.fixed_reg[xx].pL2CA_FixedCong_Cb != NULL)
+                                (* l2cb.fixed_reg[xx].pL2CA_FixedCong_Cb)(p_ccb->p_lcb->remote_bd_addr, TRUE);
+                            break;
+                        }
+                    }
+                }
+#endif
+            }
+        }
+    }
+}
+
diff --git a/rtkbt/code/bt/stack/l2cap/l2cap_client.c b/rtkbt/code/bt/stack/l2cap/l2cap_client.c
new file mode 100755
index 0000000..7e8b3cb
--- /dev/null
+++ b/rtkbt/code/bt/stack/l2cap/l2cap_client.c
@@ -0,0 +1,433 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_l2cap_client"
+
+#include "stack/include/l2cap_client.h"
+
+#include <assert.h>
+#include <string.h>
+
+#include "btcore/include/bdaddr.h"
+#include "osi/include/allocator.h"
+#include "osi/include/buffer.h"
+#include "osi/include/list.h"
+#include "osi/include/log.h"
+#include "osi/include/osi.h"
+#include "stack/include/l2c_api.h"
+
+struct l2cap_client_t {
+  l2cap_client_callbacks_t callbacks;
+  void *context;
+
+  uint16_t local_channel_id;
+  uint16_t remote_mtu;
+  bool configured_self;
+  bool configured_peer;
+  bool is_congested;
+  list_t *outbound_fragments;
+};
+
+static void connect_completed_cb(uint16_t local_channel_id, uint16_t error_code);
+static void config_request_cb(uint16_t local_channel_id, tL2CAP_CFG_INFO *requested_parameters);
+static void config_completed_cb(uint16_t local_channel_id, tL2CAP_CFG_INFO *negotiated_parameters);
+static void disconnect_request_cb(uint16_t local_channel_id, bool ack_required);
+static void disconnect_completed_cb(uint16_t local_channel_id, uint16_t error_code);
+static void congestion_cb(uint16_t local_channel_id, bool is_congested);
+static void read_ready_cb(uint16_t local_channel_id, BT_HDR *packet);
+static void write_completed_cb(uint16_t local_channel_id, uint16_t packets_completed);
+
+static void fragment_packet(l2cap_client_t *client, buffer_t *packet);
+static void dispatch_fragments(l2cap_client_t *client);
+static l2cap_client_t *find(uint16_t local_channel_id);
+
+// From the Bluetooth Core specification.
+static const uint16_t L2CAP_MTU_DEFAULT = 672;
+static const uint16_t L2CAP_MTU_MINIMUM = 48;
+
+static const tL2CAP_APPL_INFO l2cap_callbacks = {
+  .pL2CA_ConnectCfm_Cb       = connect_completed_cb,
+  .pL2CA_ConfigInd_Cb        = config_request_cb,
+  .pL2CA_ConfigCfm_Cb        = config_completed_cb,
+  .pL2CA_DisconnectInd_Cb    = disconnect_request_cb,
+  .pL2CA_DisconnectCfm_Cb    = disconnect_completed_cb,
+  .pL2CA_CongestionStatus_Cb = congestion_cb,
+  .pL2CA_DataInd_Cb          = read_ready_cb,
+  .pL2CA_TxComplete_Cb       = write_completed_cb,
+};
+
+static list_t *l2cap_clients;  // A list of l2cap_client_t. Container does not own objects.
+
+buffer_t *l2cap_buffer_new(size_t size) {
+  buffer_t *buf = buffer_new(size + L2CAP_MIN_OFFSET);
+  buffer_t *slice = NULL;
+  if (buf)
+    slice = buffer_new_slice(buf, size);
+  buffer_free(buf);
+  return slice;
+}
+
+l2cap_client_t *l2cap_client_new(const l2cap_client_callbacks_t *callbacks, void *context) {
+  assert(callbacks != NULL);
+  assert(callbacks->connected != NULL);
+  assert(callbacks->disconnected != NULL);
+  assert(callbacks->read_ready != NULL);
+  assert(callbacks->write_ready != NULL);
+
+  if (!l2cap_clients) {
+    l2cap_clients = list_new(NULL);
+    if (!l2cap_clients) {
+      LOG_ERROR(LOG_TAG, "%s unable to allocate space for L2CAP client list.", __func__);
+      return NULL;
+    }
+  }
+
+  l2cap_client_t *ret = (l2cap_client_t *)osi_calloc(sizeof(l2cap_client_t));
+
+  ret->callbacks = *callbacks;
+  ret->context = context;
+
+  ret->remote_mtu = L2CAP_MTU_DEFAULT;
+  ret->outbound_fragments = list_new(NULL);
+  if (!ret) {
+    LOG_ERROR(LOG_TAG, "%s unable to allocate outbound L2CAP fragment list.", __func__);
+    goto error;
+  }
+
+  list_append(l2cap_clients, ret);
+
+  return ret;
+
+error:;
+  osi_free(ret);
+  return NULL;
+}
+
+void l2cap_client_free(l2cap_client_t *client) {
+  if (!client)
+    return;
+
+  list_remove(l2cap_clients, client);
+  l2cap_client_disconnect(client);
+  list_free(client->outbound_fragments);
+  osi_free(client);
+}
+
+bool l2cap_client_connect(l2cap_client_t *client, const bt_bdaddr_t *remote_bdaddr, uint16_t psm) {
+  assert(client != NULL);
+  assert(remote_bdaddr != NULL);
+  assert(psm != 0);
+  assert(!bdaddr_is_empty(remote_bdaddr));
+  assert(client->local_channel_id == 0);
+  assert(!client->configured_self);
+  assert(!client->configured_peer);
+  assert(!L2C_INVALID_PSM(psm));
+
+  client->local_channel_id = L2CA_ConnectReq(psm, (uint8_t *)remote_bdaddr);
+  if (!client->local_channel_id) {
+    LOG_ERROR(LOG_TAG, "%s unable to create L2CAP connection.", __func__);
+    return false;
+  }
+
+  L2CA_SetConnectionCallbacks(client->local_channel_id, &l2cap_callbacks);
+  return true;
+}
+
+void l2cap_client_disconnect(l2cap_client_t *client) {
+  assert(client != NULL);
+
+  if (client->local_channel_id && !L2CA_DisconnectReq(client->local_channel_id))
+    LOG_ERROR(LOG_TAG, "%s unable to send disconnect message for LCID 0x%04x.", __func__, client->local_channel_id);
+
+  client->local_channel_id = 0;
+  client->remote_mtu = L2CAP_MTU_DEFAULT;
+  client->configured_self = false;
+  client->configured_peer = false;
+  client->is_congested = false;
+
+  for (const list_node_t *node = list_begin(client->outbound_fragments); node != list_end(client->outbound_fragments); node = list_next(node))
+    osi_free(list_node(node));
+
+  list_clear(client->outbound_fragments);
+}
+
+bool l2cap_client_is_connected(const l2cap_client_t *client) {
+  assert(client != NULL);
+
+  return client->local_channel_id != 0 && client->configured_self && client->configured_peer;
+}
+
+bool l2cap_client_write(l2cap_client_t *client, buffer_t *packet) {
+  assert(client != NULL);
+  assert(packet != NULL);
+  assert(l2cap_client_is_connected(client));
+
+  if (client->is_congested)
+    return false;
+
+  fragment_packet(client, packet);
+  dispatch_fragments(client);
+  return true;
+}
+
+static void connect_completed_cb(uint16_t local_channel_id, uint16_t error_code) {
+  assert(local_channel_id != 0);
+
+  l2cap_client_t *client = find(local_channel_id);
+  if (!client) {
+    LOG_ERROR(LOG_TAG, "%s unable to find L2CAP client for LCID 0x%04x.", __func__, local_channel_id);
+    return;
+  }
+
+  if (error_code != L2CAP_CONN_OK) {
+    LOG_ERROR(LOG_TAG, "%s error connecting L2CAP channel: %d.", __func__, error_code);
+    client->callbacks.disconnected(client, client->context);
+    return;
+  }
+
+  // Use default L2CAP parameters.
+  tL2CAP_CFG_INFO desired_parameters;
+  memset(&desired_parameters, 0, sizeof(desired_parameters));
+  if (!L2CA_ConfigReq(local_channel_id, &desired_parameters)) {
+    LOG_ERROR(LOG_TAG, "%s error sending L2CAP config parameters.", __func__);
+    client->callbacks.disconnected(client, client->context);
+  }
+}
+
+static void config_request_cb(uint16_t local_channel_id, tL2CAP_CFG_INFO *requested_parameters) {
+  tL2CAP_CFG_INFO response;
+  l2cap_client_t *client = find(local_channel_id);
+
+  if (!client) {
+    LOG_ERROR(LOG_TAG, "%s unable to find L2CAP client matching LCID 0x%04x.", __func__, local_channel_id);
+    return;
+  }
+
+  memset(&response, 0, sizeof(response));
+  response.result = L2CAP_CFG_OK;
+
+  if (requested_parameters->mtu_present) {
+    // Make sure the peer chose an MTU at least as large as the minimum L2CAP MTU defined
+    // by the Bluetooth Core spec.
+    if (requested_parameters->mtu < L2CAP_MTU_MINIMUM) {
+      response.mtu = L2CAP_MTU_MINIMUM;
+      response.mtu_present = true;
+      response.result = L2CAP_CFG_UNACCEPTABLE_PARAMS;
+    } else {
+      client->remote_mtu = requested_parameters->mtu;
+    }
+  }
+
+  if (requested_parameters->fcr_present) {
+    if (requested_parameters->fcr.mode != L2CAP_FCR_BASIC_MODE) {
+      response.fcr_present = true;
+      response.fcr = requested_parameters->fcr;
+      response.fcr.mode = L2CAP_FCR_BASIC_MODE;
+      response.result = L2CAP_CFG_UNACCEPTABLE_PARAMS;
+    }
+  }
+
+  if (!L2CA_ConfigRsp(local_channel_id, &response)) {
+    LOG_ERROR(LOG_TAG, "%s unable to send config response for LCID 0x%04x.", __func__, local_channel_id);
+    l2cap_client_disconnect(client);
+    return;
+  }
+
+  // If we've configured both endpoints, let the listener know we've connected.
+  client->configured_peer = true;
+  if (l2cap_client_is_connected(client))
+    client->callbacks.connected(client, client->context);
+}
+
+static void config_completed_cb(uint16_t local_channel_id, tL2CAP_CFG_INFO *negotiated_parameters) {
+  l2cap_client_t *client = find(local_channel_id);
+
+  if (!client) {
+    LOG_ERROR(LOG_TAG, "%s unable to find L2CAP client matching LCID 0x%04x.", __func__, local_channel_id);
+    return;
+  }
+
+  switch (negotiated_parameters->result) {
+    // We'll get another configuration response later.
+    case L2CAP_CFG_PENDING:
+      break;
+
+    case L2CAP_CFG_UNACCEPTABLE_PARAMS:
+      // TODO: see if we can renegotiate parameters instead of dropping the connection.
+      LOG_WARN(LOG_TAG, "%s dropping L2CAP connection due to unacceptable config parameters.", __func__);
+      l2cap_client_disconnect(client);
+      break;
+
+    case L2CAP_CFG_OK:
+      // If we've configured both endpoints, let the listener know we've connected.
+      client->configured_self = true;
+      if (l2cap_client_is_connected(client))
+        client->callbacks.connected(client, client->context);
+      break;
+
+    // Failure, no further parameter negotiation possible.
+    default:
+      LOG_WARN(LOG_TAG, "%s L2CAP parameter negotiation failed with error code %d.", __func__, negotiated_parameters->result);
+      l2cap_client_disconnect(client);
+      break;
+  }
+}
+
+static void disconnect_request_cb(uint16_t local_channel_id, bool ack_required) {
+  l2cap_client_t *client = find(local_channel_id);
+  if (!client) {
+    LOG_ERROR(LOG_TAG, "%s unable to find L2CAP client with LCID 0x%04x.", __func__, local_channel_id);
+    return;
+  }
+
+  if (ack_required)
+    L2CA_DisconnectRsp(local_channel_id);
+
+  // We already sent a disconnect response so this LCID is now invalid.
+  client->local_channel_id = 0;
+  l2cap_client_disconnect(client);
+
+  client->callbacks.disconnected(client, client->context);
+}
+
+static void disconnect_completed_cb(uint16_t local_channel_id, UNUSED_ATTR uint16_t error_code) {
+  assert(local_channel_id != 0);
+
+  l2cap_client_t *client = find(local_channel_id);
+  if (!client) {
+    LOG_ERROR(LOG_TAG, "%s unable to find L2CAP client with LCID 0x%04x.", __func__, local_channel_id);
+    return;
+  }
+
+  client->local_channel_id = 0;
+  l2cap_client_disconnect(client);
+
+  client->callbacks.disconnected(client, client->context);
+}
+
+static void congestion_cb(uint16_t local_channel_id, bool is_congested) {
+  assert(local_channel_id != 0);
+
+  l2cap_client_t *client = find(local_channel_id);
+  if (!client) {
+    LOG_ERROR(LOG_TAG, "%s unable to find L2CAP client matching LCID 0x%04x.", __func__, local_channel_id);
+    return;
+  }
+
+  client->is_congested = is_congested;
+
+  if (!is_congested) {
+    // If we just decongested, dispatch whatever we have left over in our queue.
+    // Once that's done, if we're still decongested, notify the listener so it
+    // can start writing again.
+    dispatch_fragments(client);
+    if (!client->is_congested)
+      client->callbacks.write_ready(client, client->context);
+  }
+}
+
+static void read_ready_cb(uint16_t local_channel_id, BT_HDR *packet) {
+  assert(local_channel_id != 0);
+
+  l2cap_client_t *client = find(local_channel_id);
+  if (!client) {
+    LOG_ERROR(LOG_TAG, "%s unable to find L2CAP client matching LCID 0x%04x.", __func__, local_channel_id);
+    return;
+  }
+
+  // TODO(sharvil): eliminate copy from BT_HDR.
+  buffer_t *buffer = buffer_new(packet->len);
+  memcpy(buffer_ptr(buffer), packet->data + packet->offset, packet->len);
+  osi_free(packet);
+
+  client->callbacks.read_ready(client, buffer, client->context);
+  buffer_free(buffer);
+}
+
+static void write_completed_cb(UNUSED_ATTR uint16_t local_channel_id, UNUSED_ATTR uint16_t packets_completed) {
+  // Do nothing. We update congestion state based on the congestion callback
+  // and we've already removed items from outbound_fragments list so we don't
+  // really care how many packets were successfully dispatched.
+}
+
+static void fragment_packet(l2cap_client_t *client, buffer_t *packet) {
+  assert(client != NULL);
+  assert(packet != NULL);
+
+  // TODO(sharvil): eliminate copy into BT_HDR.
+  BT_HDR *bt_packet = osi_malloc(buffer_length(packet) + L2CAP_MIN_OFFSET);
+  bt_packet->offset = L2CAP_MIN_OFFSET;
+  bt_packet->len = buffer_length(packet);
+  memcpy(bt_packet->data + bt_packet->offset, buffer_ptr(packet), buffer_length(packet));
+
+  for (;;) {
+    if (bt_packet->len <= client->remote_mtu) {
+      if (bt_packet->len > 0)
+        list_append(client->outbound_fragments, bt_packet);
+      else
+        osi_free(bt_packet);
+      break;
+    }
+
+    BT_HDR *fragment = osi_malloc(client->remote_mtu + L2CAP_MIN_OFFSET);
+    fragment->offset = L2CAP_MIN_OFFSET;
+    fragment->len = client->remote_mtu;
+    memcpy(fragment->data + fragment->offset, bt_packet->data + bt_packet->offset, client->remote_mtu);
+
+    list_append(client->outbound_fragments, fragment);
+
+    bt_packet->offset += client->remote_mtu;
+    bt_packet->len -= client->remote_mtu;
+  }
+}
+
+static void dispatch_fragments(l2cap_client_t *client) {
+  assert(client != NULL);
+  assert(!client->is_congested);
+
+  while (!list_is_empty(client->outbound_fragments)) {
+    BT_HDR *packet = (BT_HDR *)list_front(client->outbound_fragments);
+    list_remove(client->outbound_fragments, packet);
+
+    switch (L2CA_DataWrite(client->local_channel_id, packet)) {
+      case L2CAP_DW_CONGESTED:
+        client->is_congested = true;
+        return;
+
+      case L2CAP_DW_FAILED:
+        LOG_ERROR(LOG_TAG, "%s error writing data to L2CAP connection LCID 0x%04x; disconnecting.", __func__, client->local_channel_id);
+        l2cap_client_disconnect(client);
+        return;
+
+      case L2CAP_DW_SUCCESS:
+        break;
+    }
+  }
+}
+
+static l2cap_client_t *find(uint16_t local_channel_id) {
+  assert(local_channel_id != 0);
+
+  for (const list_node_t *node = list_begin(l2cap_clients); node != list_end(l2cap_clients); node = list_next(node)) {
+    l2cap_client_t *client = (l2cap_client_t *)list_node(node);
+    if (client->local_channel_id == local_channel_id)
+      return client;
+  }
+
+  return NULL;
+}
diff --git a/rtkbt/code/bt/stack/mcap/mca_api.c b/rtkbt/code/bt/stack/mcap/mca_api.c
new file mode 100755
index 0000000..21c3640
--- /dev/null
+++ b/rtkbt/code/bt/stack/mcap/mca_api.c
@@ -0,0 +1,906 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the API implementation file for the Multi-Channel Adaptation
+ *  Protocol (MCAP).
+ *
+ ******************************************************************************/
+#include <assert.h>
+#include <string.h>
+
+#include "bt_target.h"
+#include "btm_api.h"
+#include "btm_int.h"
+#include "mca_api.h"
+#include "mca_defs.h"
+#include "mca_int.h"
+
+#include "btu.h"
+
+
+/*******************************************************************************
+**
+** Function         mca_process_timeout
+**
+** Description      This function is called by BTU when an MCA timer
+**                  expires.
+**
+**                  This function is for use internal to the stack only.
+**
+** Returns          void
+**
+*******************************************************************************/
+void mca_ccb_timer_timeout(void *data)
+{
+    tMCA_CCB *p_ccb = (tMCA_CCB *)data;
+
+    mca_ccb_event(p_ccb, MCA_CCB_RSP_TOUT_EVT, NULL);
+}
+
+/*******************************************************************************
+**
+** Function         MCA_Init
+**
+** Description      Initialize MCAP main control block.
+**                  This function is called at stack start up.
+**
+** Returns          void
+**
+*******************************************************************************/
+void MCA_Init(void)
+{
+    memset(&mca_cb, 0, sizeof(tMCA_CB));
+
+#if defined(MCA_INITIAL_TRACE_LEVEL)
+    mca_cb.trace_level = MCA_INITIAL_TRACE_LEVEL;
+#else
+    mca_cb.trace_level = BT_TRACE_LEVEL_NONE;
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         MCA_SetTraceLevel
+**
+** Description      This function sets the debug trace level for MCA.
+**                  If 0xff is passed, the current trace level is returned.
+**
+**                  Input Parameters:
+**                      level:  The level to set the MCA tracing to:
+**                      0xff-returns the current setting.
+**                      0-turns off tracing.
+**                      >= 1-Errors.
+**                      >= 2-Warnings.
+**                      >= 3-APIs.
+**                      >= 4-Events.
+**                      >= 5-Debug.
+**
+** Returns          The new trace level or current trace level if
+**                  the input parameter is 0xff.
+**
+*******************************************************************************/
+UINT8 MCA_SetTraceLevel (UINT8 level)
+{
+    if (level != 0xFF)
+        mca_cb.trace_level = level;
+
+    return (mca_cb.trace_level);
+}
+
+/*******************************************************************************
+**
+** Function         MCA_Register
+**
+** Description      This function registers an MCAP implementation.
+**                  It is assumed that the control channel PSM and data channel
+**                  PSM are not used by any other instances of the stack.
+**                  If the given p_reg->ctrl_psm is 0, this handle is INT only.
+**
+** Returns          0, if failed. Otherwise, the MCA handle.
+**
+*******************************************************************************/
+tMCA_HANDLE MCA_Register(tMCA_REG *p_reg, tMCA_CTRL_CBACK *p_cback)
+{
+    tMCA_RCB    *p_rcb;
+    tMCA_HANDLE handle = 0;
+    tL2CAP_APPL_INFO l2c_cacp_appl;
+    tL2CAP_APPL_INFO l2c_dacp_appl;
+
+    assert(p_reg != NULL );
+    assert(p_cback != NULL );
+
+    MCA_TRACE_API ("MCA_Register: ctrl_psm:0x%x, data_psm:0x%x", p_reg->ctrl_psm, p_reg->data_psm);
+
+    if ( (p_rcb = mca_rcb_alloc (p_reg)) != NULL)
+    {
+        if (p_reg->ctrl_psm)
+        {
+            if (L2C_INVALID_PSM(p_reg->ctrl_psm) || L2C_INVALID_PSM(p_reg->data_psm))
+            {
+                MCA_TRACE_ERROR ("INVALID_PSM");
+                return 0;
+            }
+
+            l2c_cacp_appl = *(tL2CAP_APPL_INFO *)&mca_l2c_int_appl;
+            l2c_cacp_appl.pL2CA_ConnectCfm_Cb = NULL;
+            l2c_dacp_appl = *(tL2CAP_APPL_INFO *)&l2c_cacp_appl;
+            l2c_cacp_appl.pL2CA_ConnectInd_Cb = mca_l2c_cconn_ind_cback;
+            l2c_dacp_appl.pL2CA_ConnectInd_Cb = mca_l2c_dconn_ind_cback;
+            if (L2CA_Register(p_reg->ctrl_psm, (tL2CAP_APPL_INFO *) &l2c_cacp_appl) &&
+                L2CA_Register(p_reg->data_psm, (tL2CAP_APPL_INFO *) &l2c_dacp_appl))
+            {
+                /* set security level */
+                BTM_SetSecurityLevel(FALSE, "", BTM_SEC_SERVICE_MCAP_CTRL, p_reg->sec_mask,
+                    p_reg->ctrl_psm, BTM_SEC_PROTO_MCA, MCA_CTRL_TCID);
+
+                /* in theory, we do not need this one for data_psm
+                 * If we don't, L2CAP rejects with security block (3),
+                 * which is different reject code from what MCAP spec suggests.
+                 * we set this one, so mca_l2c_dconn_ind_cback can reject /w no resources (4) */
+                BTM_SetSecurityLevel(FALSE, "", BTM_SEC_SERVICE_MCAP_DATA, p_reg->sec_mask,
+                    p_reg->data_psm, BTM_SEC_PROTO_MCA, MCA_CTRL_TCID);
+            }
+            else
+            {
+                MCA_TRACE_ERROR ("Failed to register to L2CAP");
+                return 0;
+            }
+        }
+        else
+            p_rcb->reg.data_psm = 0;
+        handle = mca_rcb_to_handle (p_rcb);
+        p_rcb->p_cback = p_cback;
+        p_rcb->reg.rsp_tout = p_reg->rsp_tout;
+    }
+    return handle;
+}
+
+
+/*******************************************************************************
+**
+** Function         MCA_Deregister
+**
+** Description      This function is called to deregister an MCAP implementation.
+**                  Before this function can be called, all control and data
+**                  channels must be removed with MCA_DisconnectReq and MCA_CloseReq.
+**
+** Returns          void
+**
+*******************************************************************************/
+void MCA_Deregister(tMCA_HANDLE handle)
+{
+    tMCA_RCB *p_rcb = mca_rcb_by_handle(handle);
+
+    MCA_TRACE_API ("MCA_Deregister: %d", handle);
+    if (p_rcb && p_rcb->reg.ctrl_psm)
+    {
+        L2CA_Deregister(p_rcb->reg.ctrl_psm);
+        L2CA_Deregister(p_rcb->reg.data_psm);
+        btm_sec_clr_service_by_psm (p_rcb->reg.ctrl_psm);
+        btm_sec_clr_service_by_psm (p_rcb->reg.data_psm);
+    }
+    mca_rcb_dealloc(handle);
+}
+
+
+/*******************************************************************************
+**
+** Function         MCA_CreateDep
+**
+** Description      Create a data endpoint.  If the MDEP is created successfully,
+**                  the MDEP ID is returned in *p_dep. After a data endpoint is
+**                  created, an application can initiate a connection between this
+**                  endpoint and an endpoint on a peer device.
+**
+** Returns          MCA_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+tMCA_RESULT MCA_CreateDep(tMCA_HANDLE handle, tMCA_DEP *p_dep, tMCA_CS *p_cs)
+{
+    tMCA_RESULT result = MCA_BAD_HANDLE;
+    int       i;
+    tMCA_RCB *p_rcb = mca_rcb_by_handle(handle);
+    tMCA_CS  *p_depcs;
+
+    assert(p_dep != NULL );
+    assert(p_cs != NULL );
+    assert(p_cs->p_data_cback != NULL );
+
+    MCA_TRACE_API ("MCA_CreateDep: %d", handle);
+    if (p_rcb)
+    {
+        if (p_cs->max_mdl > MCA_NUM_MDLS)
+        {
+            MCA_TRACE_ERROR ("max_mdl: %d is too big", p_cs->max_mdl );
+            result = MCA_BAD_PARAMS;
+        }
+        else
+        {
+            p_depcs = p_rcb->dep;
+            if (p_cs->type == MCA_TDEP_ECHO)
+            {
+                if (p_depcs->p_data_cback)
+                {
+                    MCA_TRACE_ERROR ("Already has ECHO MDEP");
+                    return MCA_NO_RESOURCES;
+                }
+                memcpy (p_depcs, p_cs, sizeof (tMCA_CS));
+                *p_dep = 0;
+                result = MCA_SUCCESS;
+            }
+            else
+            {
+                result = MCA_NO_RESOURCES;
+                /* non-echo MDEP starts from 1 */
+                p_depcs++;
+                for (i=1; i<MCA_NUM_DEPS; i++, p_depcs++)
+                {
+                    if (p_depcs->p_data_cback == NULL)
+                    {
+                        memcpy (p_depcs, p_cs, sizeof (tMCA_CS));
+                        /* internally use type as the mdep id */
+                        p_depcs->type = i;
+                        *p_dep = i;
+                        result = MCA_SUCCESS;
+                        break;
+                    }
+                }
+            }
+        }
+    }
+    return result;
+}
+
+
+/*******************************************************************************
+**
+** Function         MCA_DeleteDep
+**
+** Description      Delete a data endpoint.  This function is called when
+**                  the implementation is no longer using a data endpoint.
+**                  If this function is called when the endpoint is connected
+**                  the connection is closed and the data endpoint
+**                  is removed.
+**
+** Returns          MCA_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+tMCA_RESULT MCA_DeleteDep(tMCA_HANDLE handle, tMCA_DEP dep)
+{
+    tMCA_RESULT result = MCA_BAD_HANDLE;
+    tMCA_RCB *p_rcb = mca_rcb_by_handle(handle);
+    tMCA_DCB *p_dcb;
+    int      i, max;
+    tMCA_CS  *p_depcs;
+
+    MCA_TRACE_API ("MCA_DeleteDep: %d dep:%d", handle, dep);
+    if (p_rcb)
+    {
+        if (dep < MCA_NUM_DEPS && p_rcb->dep[dep].p_data_cback)
+        {
+            result = MCA_SUCCESS;
+            p_rcb->dep[dep].p_data_cback = NULL;
+            p_depcs = &(p_rcb->dep[dep]);
+            i = handle - 1;
+            max = MCA_NUM_MDLS*MCA_NUM_LINKS;
+            p_dcb = &mca_cb.dcb[i*max];
+            /* make sure no MDL exists for this MDEP */
+            for (i=0; i<max; i++, p_dcb++)
+            {
+                if (p_dcb->state && p_dcb->p_cs == p_depcs)
+                {
+                    mca_dcb_event(p_dcb, MCA_DCB_API_CLOSE_EVT, NULL);
+                }
+            }
+        }
+    }
+    return result;
+}
+
+/*******************************************************************************
+**
+** Function         MCA_ConnectReq
+**
+** Description      This function initiates an MCAP control channel connection
+**                  to the peer device.  When the connection is completed, an
+**                  MCA_CONNECT_IND_EVT is reported to the application via its
+**                  control callback function.
+**                  This control channel is identified by the tMCA_CL.
+**                  If the connection attempt fails, an MCA_DISCONNECT_IND_EVT is
+**                  reported. The security mask parameter overrides the outgoing
+**                  security mask set in MCA_Register().
+**
+** Returns          MCA_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+tMCA_RESULT MCA_ConnectReq(tMCA_HANDLE handle, BD_ADDR bd_addr,
+                           UINT16 ctrl_psm, UINT16 sec_mask)
+{
+    tMCA_RESULT result = MCA_BAD_HANDLE;
+    tMCA_CCB    *p_ccb;
+    tMCA_TC_TBL *p_tbl;
+
+    MCA_TRACE_API ("MCA_ConnectReq: %d psm:0x%x", handle, ctrl_psm);
+    if ((p_ccb = mca_ccb_by_bd(handle, bd_addr)) == NULL)
+        p_ccb = mca_ccb_alloc(handle, bd_addr);
+    else
+    {
+        MCA_TRACE_ERROR ("control channel already exists");
+        return MCA_BUSY;
+    }
+
+    if (p_ccb)
+    {
+        p_ccb->ctrl_vpsm = L2CA_Register (ctrl_psm, (tL2CAP_APPL_INFO *)&mca_l2c_int_appl);
+        result = MCA_NO_RESOURCES;
+        if (p_ccb->ctrl_vpsm)
+        {
+            BTM_SetSecurityLevel(TRUE, "", BTM_SEC_SERVICE_MCAP_CTRL, sec_mask,
+                p_ccb->ctrl_vpsm, BTM_SEC_PROTO_MCA, MCA_CTRL_TCID);
+            p_ccb->lcid = mca_l2c_open_req(bd_addr, p_ccb->ctrl_vpsm, NULL);
+            if (p_ccb->lcid)
+            {
+                p_tbl = mca_tc_tbl_calloc(p_ccb);
+                if (p_tbl)
+                {
+                    p_tbl->state = MCA_TC_ST_CONN;
+                    p_ccb->sec_mask = sec_mask;
+                    result = MCA_SUCCESS;
+                }
+            }
+        }
+        if (result != MCA_SUCCESS)
+            mca_ccb_dealloc (p_ccb, NULL);
+    }
+    return result;
+}
+
+
+/*******************************************************************************
+**
+** Function         MCA_DisconnectReq
+**
+** Description      This function disconnect an MCAP control channel
+**                  to the peer device.
+**                  If associated data channel exists, they are disconnected.
+**                  When the MCL is disconnected an MCA_DISCONNECT_IND_EVT is
+**                  reported to the application via its control callback function.
+**
+** Returns          MCA_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+tMCA_RESULT MCA_DisconnectReq(tMCA_CL mcl)
+{
+    tMCA_RESULT result = MCA_BAD_HANDLE;
+    tMCA_CCB *p_ccb = mca_ccb_by_hdl(mcl);
+
+    MCA_TRACE_API ("MCA_DisconnectReq: %d ", mcl);
+    if (p_ccb)
+    {
+        result = MCA_SUCCESS;
+        mca_ccb_event (p_ccb, MCA_CCB_API_DISCONNECT_EVT, NULL);
+    }
+    return result;
+}
+
+
+/*******************************************************************************
+**
+** Function         MCA_CreateMdl
+**
+** Description      This function sends a CREATE_MDL request to the peer device.
+**                  When the response is received, a MCA_CREATE_CFM_EVT is reported
+**                  with the given MDL ID.
+**                  If the response is successful, a data channel is open
+**                  with the given p_chnl_cfg
+**                  If p_chnl_cfg is NULL, the data channel is not initiated until
+**                  MCA_DataChnlCfg is called to provide the p_chnl_cfg.
+**                  When the data channel is open successfully, a MCA_OPEN_CFM_EVT
+**                  is reported. This data channel is identified as tMCA_DL.
+**
+** Returns          MCA_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+tMCA_RESULT MCA_CreateMdl(tMCA_CL mcl, tMCA_DEP dep, UINT16 data_psm,
+                                         UINT16 mdl_id, UINT8 peer_dep_id,
+                                         UINT8 cfg, const tMCA_CHNL_CFG *p_chnl_cfg)
+{
+    tMCA_RESULT     result = MCA_BAD_HANDLE;
+    tMCA_CCB        *p_ccb = mca_ccb_by_hdl(mcl);
+    tMCA_DCB        *p_dcb;
+
+    MCA_TRACE_API ("MCA_CreateMdl: %d dep=%d mdl_id=%d peer_dep_id=%d", mcl, dep, mdl_id, peer_dep_id);
+    if (p_ccb)
+    {
+        if (p_ccb->p_tx_req || p_ccb->p_rx_msg || p_ccb->cong)
+        {
+            MCA_TRACE_ERROR ("pending req");
+            return MCA_BUSY;
+        }
+
+        if ((peer_dep_id > MCA_MAX_MDEP_ID) || (!MCA_IS_VALID_MDL_ID(mdl_id)))
+        {
+            MCA_TRACE_ERROR ("bad peer dep id:%d or bad mdl id: %d ", peer_dep_id, mdl_id);
+            return MCA_BAD_PARAMS;
+        }
+
+        if (mca_ccb_uses_mdl_id(p_ccb, mdl_id))
+        {
+            MCA_TRACE_ERROR ("mdl id: %d is used in the control link", mdl_id);
+            return MCA_BAD_MDL_ID;
+        }
+
+        p_dcb = mca_dcb_alloc(p_ccb, dep);
+        result = MCA_NO_RESOURCES;
+        if (p_dcb)
+        {
+            /* save the info required by dcb connection */
+            p_dcb->p_chnl_cfg       = p_chnl_cfg;
+            p_dcb->mdl_id           = mdl_id;
+            tMCA_CCB_MSG *p_evt_data =
+                (tMCA_CCB_MSG *)osi_malloc(sizeof(tMCA_CCB_MSG));
+            if (!p_ccb->data_vpsm)
+                p_ccb->data_vpsm = L2CA_Register (data_psm, (tL2CAP_APPL_INFO *)&mca_l2c_int_appl);
+            if (p_ccb->data_vpsm) {
+                p_evt_data->dcb_idx     = mca_dcb_to_hdl (p_dcb);
+                p_evt_data->mdep_id     = peer_dep_id;
+                p_evt_data->mdl_id      = mdl_id;
+                p_evt_data->param       = cfg;
+                p_evt_data->op_code     = MCA_OP_MDL_CREATE_REQ;
+                p_evt_data->hdr.event   = MCA_CCB_API_REQ_EVT;
+                p_evt_data->hdr.layer_specific   = FALSE;
+                mca_ccb_event(p_ccb, MCA_CCB_API_REQ_EVT, (tMCA_CCB_EVT *)p_evt_data);
+                return MCA_SUCCESS;
+            } else {
+                osi_free(p_evt_data);
+            }
+
+            mca_dcb_dealloc(p_dcb, NULL);
+        }
+    }
+    return result;
+}
+
+
+/*******************************************************************************
+**
+** Function         MCA_CreateMdlRsp
+**
+** Description      This function sends a CREATE_MDL response to the peer device
+**                  in response to a received MCA_CREATE_IND_EVT.
+**                  If the rsp_code is successful, a data channel is open
+**                  with the given p_chnl_cfg
+**                  When the data channel is open successfully, a MCA_OPEN_IND_EVT
+**                  is reported. This data channel is identified as tMCA_DL.
+**
+** Returns          MCA_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+tMCA_RESULT MCA_CreateMdlRsp(tMCA_CL mcl, tMCA_DEP dep,
+                                            UINT16 mdl_id, UINT8 cfg, UINT8 rsp_code,
+                                            const tMCA_CHNL_CFG *p_chnl_cfg)
+{
+    tMCA_RESULT     result = MCA_BAD_HANDLE;
+    tMCA_CCB        *p_ccb = mca_ccb_by_hdl(mcl);
+    tMCA_CCB_MSG    evt_data;
+    tMCA_DCB        *p_dcb;
+
+    MCA_TRACE_API ("MCA_CreateMdlRsp: %d dep=%d mdl_id=%d cfg=%d rsp_code=%d", mcl, dep, mdl_id, cfg, rsp_code);
+    assert(p_chnl_cfg != NULL );
+    if (p_ccb)
+    {
+        if (p_ccb->cong)
+        {
+            MCA_TRACE_ERROR ("congested");
+            return MCA_BUSY;
+        }
+        if (p_ccb->p_rx_msg && (p_ccb->p_rx_msg->mdep_id == dep )
+            && (p_ccb->p_rx_msg->mdl_id == mdl_id) && (p_ccb->p_rx_msg->op_code == MCA_OP_MDL_CREATE_REQ))
+        {
+            result = MCA_SUCCESS;
+            evt_data.dcb_idx    = 0;
+            if (rsp_code == MCA_RSP_SUCCESS)
+            {
+                p_dcb = mca_dcb_alloc(p_ccb, dep);
+                if (p_dcb)
+                {
+                    evt_data.dcb_idx    = mca_dcb_to_hdl(p_dcb);
+                    p_dcb->p_chnl_cfg   = p_chnl_cfg;
+                    p_dcb->mdl_id       = mdl_id;
+                }
+                else
+                {
+                    rsp_code = MCA_RSP_MDEP_BUSY;
+                    result = MCA_NO_RESOURCES;
+                }
+            }
+
+            if (result == MCA_SUCCESS)
+            {
+                evt_data.mdl_id     = mdl_id;
+                evt_data.param      = cfg;
+                evt_data.rsp_code   = rsp_code;
+                evt_data.op_code    = MCA_OP_MDL_CREATE_RSP;
+                mca_ccb_event(p_ccb, MCA_CCB_API_RSP_EVT, (tMCA_CCB_EVT *)&evt_data);
+            }
+        }
+        else
+        {
+            MCA_TRACE_ERROR ("The given MCL is not expecting a MCA_CreateMdlRsp with the given parameters" );
+            result = MCA_BAD_PARAMS;
+        }
+    }
+    return result;
+}
+
+/*******************************************************************************
+**
+** Function         MCA_CloseReq
+**
+** Description      Close a data channel.  When the channel is closed, an
+**                  MCA_CLOSE_CFM_EVT is sent to the application via the
+**                  control callback function for this handle.
+**
+** Returns          MCA_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+tMCA_RESULT MCA_CloseReq(tMCA_DL mdl)
+{
+    tMCA_RESULT     result = MCA_BAD_HANDLE;
+    tMCA_DCB *p_dcb = mca_dcb_by_hdl(mdl);
+
+    MCA_TRACE_API ("MCA_CloseReq: %d ", mdl);
+    if (p_dcb)
+    {
+        result = MCA_SUCCESS;
+        mca_dcb_event(p_dcb, MCA_DCB_API_CLOSE_EVT, NULL);
+    }
+    return result;
+}
+
+
+/*******************************************************************************
+**
+** Function         MCA_ReconnectMdl
+**
+** Description      This function sends a RECONNECT_MDL request to the peer device.
+**                  When the response is received, a MCA_RECONNECT_CFM_EVT is reported.
+**                  If p_chnl_cfg is NULL, the data channel is not initiated until
+**                  MCA_DataChnlCfg is called to provide the p_chnl_cfg.
+**                  If the response is successful, a data channel is open.
+**                  When the data channel is open successfully, a MCA_OPEN_CFM_EVT
+**                  is reported.
+**
+** Returns          MCA_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+tMCA_RESULT MCA_ReconnectMdl(tMCA_CL mcl, tMCA_DEP dep, UINT16 data_psm,
+                                            UINT16 mdl_id, const tMCA_CHNL_CFG *p_chnl_cfg)
+{
+    tMCA_RESULT     result = MCA_BAD_HANDLE;
+    tMCA_CCB        *p_ccb = mca_ccb_by_hdl(mcl);
+    tMCA_DCB        *p_dcb;
+
+    MCA_TRACE_API ("MCA_ReconnectMdl: %d ", mcl);
+    assert(p_chnl_cfg != NULL );
+    if (p_ccb)
+    {
+        if (p_ccb->p_tx_req || p_ccb->p_rx_msg || p_ccb->cong)
+        {
+            MCA_TRACE_ERROR ("pending req");
+            return MCA_BUSY;
+        }
+
+        if (!MCA_IS_VALID_MDL_ID(mdl_id))
+        {
+            MCA_TRACE_ERROR ("bad mdl id: %d ", mdl_id);
+            return MCA_BAD_PARAMS;
+        }
+
+        if (mca_ccb_uses_mdl_id(p_ccb, mdl_id))
+        {
+            MCA_TRACE_ERROR ("mdl id: %d is used in the control link", mdl_id);
+            return MCA_BAD_MDL_ID;
+        }
+
+        p_dcb = mca_dcb_alloc(p_ccb, dep);
+        result = MCA_NO_RESOURCES;
+        if (p_dcb) {
+            tMCA_CCB_MSG *p_evt_data =
+                (tMCA_CCB_MSG *)osi_malloc(sizeof(tMCA_CCB_MSG));
+
+            p_dcb->p_chnl_cfg       = p_chnl_cfg;
+            p_dcb->mdl_id           = mdl_id;
+            if (!p_ccb->data_vpsm)
+                p_ccb->data_vpsm = L2CA_Register (data_psm, (tL2CAP_APPL_INFO *)&mca_l2c_int_appl);
+            p_evt_data->dcb_idx     = mca_dcb_to_hdl(p_dcb);
+            p_evt_data->mdl_id      = mdl_id;
+            p_evt_data->op_code     = MCA_OP_MDL_RECONNECT_REQ;
+            p_evt_data->hdr.event   = MCA_CCB_API_REQ_EVT;
+            mca_ccb_event(p_ccb, MCA_CCB_API_REQ_EVT, (tMCA_CCB_EVT *)p_evt_data);
+            return MCA_SUCCESS;
+        }
+    }
+    return result;
+}
+
+
+/*******************************************************************************
+**
+** Function         MCA_ReconnectMdlRsp
+**
+** Description      This function sends a RECONNECT_MDL response to the peer device
+**                  in response to a MCA_RECONNECT_IND_EVT event.
+**                  If the response is successful, a data channel is open.
+**                  When the data channel is open successfully, a MCA_OPEN_IND_EVT
+**                  is reported.
+**
+** Returns          MCA_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+tMCA_RESULT MCA_ReconnectMdlRsp(tMCA_CL mcl, tMCA_DEP dep,
+                                               UINT16 mdl_id, UINT8 rsp_code,
+                                               const tMCA_CHNL_CFG *p_chnl_cfg)
+{
+    tMCA_RESULT     result = MCA_BAD_HANDLE;
+    tMCA_CCB        *p_ccb = mca_ccb_by_hdl(mcl);
+    tMCA_CCB_MSG    evt_data;
+    tMCA_DCB        *p_dcb;
+
+    MCA_TRACE_API ("MCA_ReconnectMdlRsp: %d ", mcl);
+    assert(p_chnl_cfg != NULL );
+    if (p_ccb)
+    {
+        if (p_ccb->cong)
+        {
+            MCA_TRACE_ERROR ("congested");
+            return MCA_BUSY;
+        }
+        if (p_ccb->p_rx_msg && (p_ccb->p_rx_msg->mdl_id == mdl_id) &&
+            (p_ccb->p_rx_msg->op_code == MCA_OP_MDL_RECONNECT_REQ))
+        {
+            result = MCA_SUCCESS;
+            evt_data.dcb_idx    = 0;
+            if (rsp_code == MCA_RSP_SUCCESS)
+            {
+                p_dcb = mca_dcb_alloc(p_ccb, dep);
+                if (p_dcb)
+                {
+                    evt_data.dcb_idx    = mca_dcb_to_hdl(p_dcb);
+                    p_dcb->p_chnl_cfg   = p_chnl_cfg;
+                    p_dcb->mdl_id       = mdl_id;
+                }
+                else
+                {
+                    MCA_TRACE_ERROR ("Out of MDL for this MDEP");
+                    rsp_code = MCA_RSP_MDEP_BUSY;
+                    result = MCA_NO_RESOURCES;
+                }
+            }
+
+            evt_data.mdl_id     = mdl_id;
+            evt_data.rsp_code   = rsp_code;
+            evt_data.op_code    = MCA_OP_MDL_RECONNECT_RSP;
+            mca_ccb_event(p_ccb, MCA_CCB_API_RSP_EVT, (tMCA_CCB_EVT *)&evt_data);
+        }
+        else
+        {
+            MCA_TRACE_ERROR ("The given MCL is not expecting a MCA_ReconnectMdlRsp with the given parameters" );
+            result = MCA_BAD_PARAMS;
+        }
+    }
+    return result;
+}
+
+
+/*******************************************************************************
+**
+** Function         MCA_DataChnlCfg
+**
+** Description      This function initiates a data channel connection toward the
+**                  connected peer device.
+**                  When the data channel is open successfully, a MCA_OPEN_CFM_EVT
+**                  is reported. This data channel is identified as tMCA_DL.
+**
+** Returns          MCA_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+tMCA_RESULT MCA_DataChnlCfg(tMCA_CL mcl, const tMCA_CHNL_CFG *p_chnl_cfg)
+{
+    tMCA_RESULT     result = MCA_BAD_HANDLE;
+    tMCA_CCB        *p_ccb = mca_ccb_by_hdl(mcl);
+    tMCA_DCB        *p_dcb;
+    tMCA_TC_TBL *p_tbl;
+
+    MCA_TRACE_API ("MCA_DataChnlCfg: %d ", mcl);
+    assert(p_chnl_cfg != NULL );
+    if (p_ccb)
+    {
+        result = MCA_NO_RESOURCES;
+        if ((p_ccb->p_tx_req == NULL) || (p_ccb->status != MCA_CCB_STAT_PENDING) ||
+            ((p_dcb = mca_dcb_by_hdl(p_ccb->p_tx_req->dcb_idx)) == NULL))
+        {
+            MCA_TRACE_ERROR ("The given MCL is not expecting this API:%d", p_ccb->status);
+            return result;
+        }
+
+        p_dcb->p_chnl_cfg       = p_chnl_cfg;
+        BTM_SetSecurityLevel(TRUE, "", BTM_SEC_SERVICE_MCAP_DATA, p_ccb->sec_mask,
+            p_ccb->data_vpsm, BTM_SEC_PROTO_MCA, p_ccb->p_tx_req->dcb_idx);
+        p_dcb->lcid = mca_l2c_open_req(p_ccb->peer_addr, p_ccb->data_vpsm, p_dcb->p_chnl_cfg);
+        if (p_dcb->lcid)
+        {
+            p_tbl = mca_tc_tbl_dalloc(p_dcb);
+            if (p_tbl)
+            {
+                p_tbl->state = MCA_TC_ST_CONN;
+                result = MCA_SUCCESS;
+            }
+        }
+    }
+    return result;
+}
+
+
+/*******************************************************************************
+**
+** Function         MCA_Abort
+**
+** Description      This function sends a ABORT_MDL request to the peer device.
+**                  When the response is received, a MCA_ABORT_CFM_EVT is reported.
+**
+** Returns          MCA_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+tMCA_RESULT MCA_Abort(tMCA_CL mcl)
+{
+    tMCA_RESULT     result = MCA_BAD_HANDLE;
+    tMCA_CCB        *p_ccb = mca_ccb_by_hdl(mcl);
+    tMCA_DCB        *p_dcb;
+
+    MCA_TRACE_API ("MCA_Abort: %d", mcl);
+    if (p_ccb)
+    {
+        result = MCA_NO_RESOURCES;
+        /* verify that we are waiting for data channel to come up with the given mdl */
+        if ((p_ccb->p_tx_req == NULL) || (p_ccb->status != MCA_CCB_STAT_PENDING) ||
+            ((p_dcb = mca_dcb_by_hdl(p_ccb->p_tx_req->dcb_idx)) == NULL))
+        {
+            MCA_TRACE_ERROR ("The given MCL is not expecting this API:%d", p_ccb->status);
+            return result;
+        }
+
+        if (p_ccb->cong)
+        {
+            MCA_TRACE_ERROR ("congested");
+            return MCA_BUSY;
+        }
+
+        tMCA_CCB_MSG *p_evt_data =
+            (tMCA_CCB_MSG *)osi_malloc(sizeof(tMCA_CCB_MSG));
+        result = MCA_SUCCESS;
+        p_evt_data->op_code     = MCA_OP_MDL_ABORT_REQ;
+        p_evt_data->hdr.event   = MCA_CCB_API_REQ_EVT;
+        mca_ccb_event(p_ccb, MCA_CCB_API_REQ_EVT, (tMCA_CCB_EVT *)p_evt_data);
+    }
+    return result;
+}
+
+
+/*******************************************************************************
+**
+** Function         MCA_Delete
+**
+** Description      This function sends a DELETE_MDL request to the peer device.
+**                  When the response is received, a MCA_DELETE_CFM_EVT is reported.
+**
+** Returns          MCA_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+tMCA_RESULT MCA_Delete(tMCA_CL mcl, UINT16 mdl_id)
+{
+    tMCA_RESULT     result = MCA_BAD_HANDLE;
+    tMCA_CCB        *p_ccb = mca_ccb_by_hdl(mcl);
+
+    MCA_TRACE_API ("MCA_Delete: %d ", mcl);
+    if (p_ccb)
+    {
+        if (p_ccb->cong)
+        {
+            MCA_TRACE_ERROR ("congested");
+            return MCA_BUSY;
+        }
+        if (!MCA_IS_VALID_MDL_ID(mdl_id) && (mdl_id != MCA_ALL_MDL_ID))
+        {
+            MCA_TRACE_ERROR ("bad mdl id: %d ", mdl_id);
+            return MCA_BAD_PARAMS;
+        }
+
+        tMCA_CCB_MSG *p_evt_data = (tMCA_CCB_MSG *)osi_malloc(sizeof(tMCA_CCB_MSG));
+        result = MCA_SUCCESS;
+        p_evt_data->mdl_id      = mdl_id;
+        p_evt_data->op_code     = MCA_OP_MDL_DELETE_REQ;
+        p_evt_data->hdr.event   = MCA_CCB_API_REQ_EVT;
+        mca_ccb_event(p_ccb, MCA_CCB_API_REQ_EVT, (tMCA_CCB_EVT *)p_evt_data);
+    }
+    return result;
+}
+
+/*******************************************************************************
+**
+** Function         MCA_WriteReq
+**
+** Description      Send a data packet to the peer device.
+**
+**                  The application passes the packet using the BT_HDR structure.
+**                  The offset field must be equal to or greater than L2CAP_MIN_OFFSET.
+**                  This allows enough space in the buffer for the L2CAP header.
+**
+**                  The memory pointed to by p_pkt must be a GKI buffer
+**                  allocated by the application.  This buffer will be freed
+**                  by the protocol stack; the application must not free
+**                  this buffer.
+**
+** Returns          MCA_SUCCESS if successful, otherwise error.
+**
+*******************************************************************************/
+tMCA_RESULT MCA_WriteReq(tMCA_DL mdl, BT_HDR *p_pkt)
+{
+    tMCA_RESULT     result = MCA_BAD_HANDLE;
+    tMCA_DCB *p_dcb = mca_dcb_by_hdl(mdl);
+    tMCA_DCB_EVT    evt_data;
+
+    MCA_TRACE_API ("MCA_WriteReq: %d ", mdl);
+    if (p_dcb)
+    {
+        if (p_dcb->cong)
+        {
+            result = MCA_BUSY;
+        }
+        else
+        {
+            evt_data.p_pkt  = p_pkt;
+            result = MCA_SUCCESS;
+            mca_dcb_event(p_dcb, MCA_DCB_API_WRITE_EVT, &evt_data);
+        }
+    }
+    return result;
+}
+
+/*******************************************************************************
+**
+** Function         MCA_GetL2CapChannel
+**
+** Description      Get the L2CAP CID used by the given data channel handle.
+**
+** Returns          L2CAP channel ID if successful, otherwise 0.
+**
+*******************************************************************************/
+UINT16 MCA_GetL2CapChannel (tMCA_DL mdl)
+{
+    UINT16  lcid = 0;
+    tMCA_DCB *p_dcb = mca_dcb_by_hdl(mdl);
+
+    MCA_TRACE_API ("MCA_GetL2CapChannel: %d ", mdl);
+    if (p_dcb)
+        lcid = p_dcb->lcid;
+    return lcid;
+}
+
diff --git a/rtkbt/code/bt/stack/mcap/mca_cact.c b/rtkbt/code/bt/stack/mcap/mca_cact.c
new file mode 100755
index 0000000..583a342
--- /dev/null
+++ b/rtkbt/code/bt/stack/mcap/mca_cact.c
@@ -0,0 +1,580 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the implementation file for the MCAP Control Channel Action
+ *  Functions.
+ *
+ ******************************************************************************/
+#include <string.h>
+#include "bt_target.h"
+#include "bt_utils.h"
+#include "bt_common.h"
+#include "btm_api.h"
+#include "mca_api.h"
+#include "mca_defs.h"
+#include "mca_int.h"
+
+
+#include  "btu.h"
+
+extern fixed_queue_t *btu_general_alarm_queue;
+
+/*****************************************************************************
+** constants
+*****************************************************************************/
+/*******************************************************************************
+**
+** Function         mca_ccb_rsp_tout
+**
+** Description      This function processes the response timeout.
+**
+** Returns          void.
+**
+*******************************************************************************/
+void mca_ccb_rsp_tout(tMCA_CCB *p_ccb, tMCA_CCB_EVT *p_data)
+{
+   tMCA_CTRL   evt_data;
+   UNUSED(p_data);
+
+   mca_ccb_report_event(p_ccb, MCA_RSP_TOUT_IND_EVT, &evt_data);
+}
+
+/*******************************************************************************
+**
+** Function         mca_ccb_report_event
+**
+** Description      This function reports the given event.
+**
+** Returns          void.
+**
+*******************************************************************************/
+void mca_ccb_report_event(tMCA_CCB *p_ccb, UINT8 event, tMCA_CTRL *p_data)
+{
+    if (p_ccb && p_ccb->p_rcb && p_ccb->p_rcb->p_cback)
+        (*p_ccb->p_rcb->p_cback)(mca_rcb_to_handle(p_ccb->p_rcb), mca_ccb_to_hdl(p_ccb), event, p_data);
+}
+
+/*******************************************************************************
+**
+** Function         mca_ccb_free_msg
+**
+** Description      This function frees the received message.
+**
+** Returns          void.
+**
+*******************************************************************************/
+void mca_ccb_free_msg(tMCA_CCB *p_ccb, tMCA_CCB_EVT *p_data)
+{
+    UNUSED(p_ccb);
+    osi_free(p_data);
+}
+
+/*******************************************************************************
+**
+** Function         mca_ccb_snd_req
+**
+** Description      This function builds a request and sends it to the peer.
+**
+** Returns          void.
+**
+*******************************************************************************/
+void mca_ccb_snd_req(tMCA_CCB *p_ccb, tMCA_CCB_EVT *p_data)
+{
+    tMCA_CCB_MSG *p_msg = (tMCA_CCB_MSG *)p_data;
+    UINT8   *p, *p_start;
+    BOOLEAN is_abort = FALSE;
+    tMCA_DCB *p_dcb;
+
+    MCA_TRACE_DEBUG ("mca_ccb_snd_req cong=%d req=%d", p_ccb->cong, p_msg->op_code);
+    /* check for abort request */
+    if ((p_ccb->status == MCA_CCB_STAT_PENDING) && (p_msg->op_code == MCA_OP_MDL_ABORT_REQ))
+    {
+        p_dcb = mca_dcb_by_hdl(p_ccb->p_tx_req->dcb_idx);
+        /* the Abort API does not have the associated mdl_id.
+         * Get the mdl_id in dcb to compose the request */
+        p_msg->mdl_id = p_dcb->mdl_id;
+        mca_dcb_event(p_dcb, MCA_DCB_API_CLOSE_EVT, NULL);
+        osi_free_and_reset((void **)&p_ccb->p_tx_req);
+        p_ccb->status = MCA_CCB_STAT_NORM;
+        is_abort = TRUE;
+    }
+
+    /* no pending outgoing messages or it's an abort request for a pending data channel */
+    if ((!p_ccb->p_tx_req) || is_abort)
+    {
+        p_ccb->p_tx_req = p_msg;
+        if (!p_ccb->cong)
+        {
+            BT_HDR *p_pkt = (BT_HDR *)osi_malloc(MCA_CTRL_MTU);
+
+            p_pkt->offset = L2CAP_MIN_OFFSET;
+            p = p_start = (UINT8*)(p_pkt + 1) + L2CAP_MIN_OFFSET;
+            *p++ = p_msg->op_code;
+            UINT16_TO_BE_STREAM (p, p_msg->mdl_id);
+            if (p_msg->op_code == MCA_OP_MDL_CREATE_REQ) {
+                *p++ = p_msg->mdep_id;
+                *p++ = p_msg->param;
+            }
+            p_msg->hdr.layer_specific = TRUE;   /* mark this message as sent */
+            p_pkt->len = p - p_start;
+            L2CA_DataWrite (p_ccb->lcid, p_pkt);
+            period_ms_t interval_ms = p_ccb->p_rcb->reg.rsp_tout * 1000;
+            alarm_set_on_queue(p_ccb->mca_ccb_timer, interval_ms,
+                               mca_ccb_timer_timeout, p_ccb,
+                               btu_general_alarm_queue);
+        }
+        /* else the L2CAP channel is congested. keep the message to be sent later */
+    }
+    else
+    {
+        MCA_TRACE_WARNING ("dropping api req");
+        osi_free(p_data);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         mca_ccb_snd_rsp
+**
+** Description      This function builds a response and sends it to
+**                  the peer.
+**
+** Returns          void.
+**
+*******************************************************************************/
+void mca_ccb_snd_rsp(tMCA_CCB *p_ccb, tMCA_CCB_EVT *p_data)
+{
+    tMCA_CCB_MSG *p_msg = (tMCA_CCB_MSG *)p_data;
+    UINT8   *p, *p_start;
+    BOOLEAN chk_mdl = FALSE;
+    BT_HDR *p_pkt = (BT_HDR *)osi_malloc(MCA_CTRL_MTU);
+
+    MCA_TRACE_DEBUG("%s cong=%d req=%d", __func__, p_ccb->cong, p_msg->op_code);
+    /* assume that API functions verified the parameters */
+
+    p_pkt->offset = L2CAP_MIN_OFFSET;
+    p = p_start = (UINT8*)(p_pkt + 1) + L2CAP_MIN_OFFSET;
+    *p++ = p_msg->op_code;
+    *p++ = p_msg->rsp_code;
+    UINT16_TO_BE_STREAM (p, p_msg->mdl_id);
+    if (p_msg->op_code == MCA_OP_MDL_CREATE_RSP) {
+        *p++ = p_msg->param;
+        chk_mdl = TRUE;
+    }
+    else if (p_msg->op_code == MCA_OP_MDL_RECONNECT_RSP) {
+        chk_mdl = TRUE;
+    }
+
+    if (chk_mdl && p_msg->rsp_code == MCA_RSP_SUCCESS) {
+        mca_dcb_by_hdl(p_msg->dcb_idx);
+        BTM_SetSecurityLevel(FALSE, "", BTM_SEC_SERVICE_MCAP_DATA,
+                             p_ccb->sec_mask,
+                             p_ccb->p_rcb->reg.data_psm, BTM_SEC_PROTO_MCA,
+                             p_msg->dcb_idx);
+        p_ccb->status = MCA_CCB_STAT_PENDING;
+        /* set p_tx_req to block API_REQ/API_RSP before DL is up */
+        osi_free_and_reset((void **)&p_ccb->p_tx_req);
+        p_ccb->p_tx_req = p_ccb->p_rx_msg;
+        p_ccb->p_rx_msg = NULL;
+        p_ccb->p_tx_req->dcb_idx = p_msg->dcb_idx;
+    }
+    osi_free_and_reset((void **)&p_ccb->p_rx_msg);
+    p_pkt->len = p - p_start;
+    L2CA_DataWrite(p_ccb->lcid, p_pkt);
+}
+
+/*******************************************************************************
+**
+** Function         mca_ccb_do_disconn
+**
+** Description      This function closes a control channel.
+**
+** Returns          void.
+**
+*******************************************************************************/
+void mca_ccb_do_disconn (tMCA_CCB *p_ccb, tMCA_CCB_EVT *p_data)
+{
+    UNUSED(p_data);
+
+    mca_dcb_close_by_mdl_id (p_ccb, MCA_ALL_MDL_ID);
+    L2CA_DisconnectReq(p_ccb->lcid);
+}
+
+/*******************************************************************************
+**
+** Function         mca_ccb_cong
+**
+** Description      This function sets the congestion state for the CCB.
+**
+** Returns          void.
+**
+*******************************************************************************/
+void mca_ccb_cong(tMCA_CCB *p_ccb, tMCA_CCB_EVT *p_data)
+{
+    MCA_TRACE_DEBUG ("mca_ccb_cong cong=%d/%d", p_ccb->cong, p_data->llcong);
+    p_ccb->cong = p_data->llcong;
+    if (!p_ccb->cong)
+    {
+        /* if there's a held packet, send it now */
+        if (p_ccb->p_tx_req && !p_ccb->p_tx_req->hdr.layer_specific)
+        {
+            p_data = (tMCA_CCB_EVT *)p_ccb->p_tx_req;
+            p_ccb->p_tx_req = NULL;
+            mca_ccb_snd_req (p_ccb, p_data);
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         mca_ccb_hdl_req
+**
+** Description      This function is called when a MCAP request is received from
+**                  the peer. It calls the application callback function to
+**                  report the event.
+**
+** Returns          void.
+**
+*******************************************************************************/
+void mca_ccb_hdl_req(tMCA_CCB *p_ccb, tMCA_CCB_EVT *p_data)
+{
+    BT_HDR  *p_pkt = &p_data->hdr;
+    UINT8   *p, *p_start;
+    tMCA_DCB    *p_dcb;
+    tMCA_CTRL       evt_data;
+    tMCA_CCB_MSG    *p_rx_msg = NULL;
+    UINT8           reject_code = MCA_RSP_NO_RESOURCE;
+    BOOLEAN         send_rsp = FALSE;
+    BOOLEAN         check_req = FALSE;
+    UINT8           reject_opcode;
+
+    MCA_TRACE_DEBUG ("mca_ccb_hdl_req status:%d", p_ccb->status);
+    p_rx_msg = (tMCA_CCB_MSG *)p_pkt;
+    p = (UINT8 *)(p_pkt + 1) + p_pkt->offset;
+    evt_data.hdr.op_code = *p++;
+    BE_STREAM_TO_UINT16 (evt_data.hdr.mdl_id, p);
+    reject_opcode = evt_data.hdr.op_code+1;
+
+    MCA_TRACE_DEBUG ("received mdl id: %d ", evt_data.hdr.mdl_id);
+    if (p_ccb->status == MCA_CCB_STAT_PENDING)
+    {
+        MCA_TRACE_DEBUG ("received req inpending state");
+        /* allow abort in pending state */
+        if ((p_ccb->status == MCA_CCB_STAT_PENDING) && (evt_data.hdr.op_code == MCA_OP_MDL_ABORT_REQ))
+        {
+            reject_code = MCA_RSP_SUCCESS;
+            send_rsp = TRUE;
+            /* clear the pending status */
+            p_ccb->status = MCA_CCB_STAT_NORM;
+            if (p_ccb->p_tx_req && ((p_dcb = mca_dcb_by_hdl(p_ccb->p_tx_req->dcb_idx))!= NULL))
+            {
+                mca_dcb_dealloc(p_dcb, NULL);
+                osi_free_and_reset((void **)&p_ccb->p_tx_req);
+            }
+        }
+        else
+            reject_code = MCA_RSP_BAD_OP;
+    }
+    else if (p_ccb->p_rx_msg)
+    {
+        MCA_TRACE_DEBUG ("still handling prev req");
+        /* still holding previous message, reject this new one ?? */
+
+    }
+    else if (p_ccb->p_tx_req)
+    {
+        MCA_TRACE_DEBUG ("still waiting for a response ctrl_vpsm:0x%x", p_ccb->ctrl_vpsm);
+        /* sent a request; waiting for response */
+        if (p_ccb->ctrl_vpsm == 0)
+        {
+            MCA_TRACE_DEBUG ("local is ACP. accept the cmd from INT");
+            /* local is acceptor, need to handle the request */
+            check_req = TRUE;
+            reject_code = MCA_RSP_SUCCESS;
+            /* drop the previous request */
+            if ((p_ccb->p_tx_req->op_code == MCA_OP_MDL_CREATE_REQ) &&
+                ((p_dcb = mca_dcb_by_hdl(p_ccb->p_tx_req->dcb_idx)) != NULL))
+            {
+                mca_dcb_dealloc(p_dcb, NULL);
+            }
+            osi_free_and_reset((void **)&p_ccb->p_tx_req);
+            mca_stop_timer(p_ccb);
+        }
+        else
+        {
+            /*  local is initiator, ignore the req */
+            osi_free(p_pkt);
+            return;
+        }
+    }
+    else if (p_pkt->layer_specific != MCA_RSP_SUCCESS)
+    {
+
+        reject_code = (UINT8)p_pkt->layer_specific;
+        if (((evt_data.hdr.op_code >= MCA_NUM_STANDARD_OPCODE) &&
+            (evt_data.hdr.op_code < MCA_FIRST_SYNC_OP)) ||
+            (evt_data.hdr.op_code > MCA_LAST_SYNC_OP))
+        {
+            /* invalid op code */
+            reject_opcode = MCA_OP_ERROR_RSP;
+            evt_data.hdr.mdl_id = 0;
+        }
+    }
+    else
+    {
+        check_req = TRUE;
+        reject_code = MCA_RSP_SUCCESS;
+    }
+
+    if (check_req)
+    {
+        if (reject_code == MCA_RSP_SUCCESS)
+        {
+            reject_code = MCA_RSP_BAD_MDL;
+            if (MCA_IS_VALID_MDL_ID(evt_data.hdr.mdl_id) ||
+                ((evt_data.hdr.mdl_id == MCA_ALL_MDL_ID) && (evt_data.hdr.op_code == MCA_OP_MDL_DELETE_REQ)))
+            {
+                reject_code = MCA_RSP_SUCCESS;
+                /* mdl_id is valid according to the spec */
+                switch (evt_data.hdr.op_code)
+                {
+                case MCA_OP_MDL_CREATE_REQ:
+                    evt_data.create_ind.dep_id = *p++;
+                    evt_data.create_ind.cfg = *p++;
+                    p_rx_msg->mdep_id = evt_data.create_ind.dep_id;
+                    if (!mca_is_valid_dep_id(p_ccb->p_rcb, p_rx_msg->mdep_id))
+                    {
+                        MCA_TRACE_ERROR ("not a valid local mdep id");
+                        reject_code = MCA_RSP_BAD_MDEP;
+                    }
+                    else if (mca_ccb_uses_mdl_id(p_ccb, evt_data.hdr.mdl_id))
+                    {
+                        MCA_TRACE_DEBUG ("the mdl_id is currently used in the CL(create)");
+                        mca_dcb_close_by_mdl_id(p_ccb, evt_data.hdr.mdl_id);
+                    }
+                    else
+                    {
+                        /* check if this dep still have MDL available */
+                        if (mca_dep_free_mdl(p_ccb, evt_data.create_ind.dep_id) == 0)
+                        {
+                            MCA_TRACE_ERROR ("the mdep is currently using max_mdl");
+                            reject_code = MCA_RSP_MDEP_BUSY;
+                        }
+                    }
+                    break;
+
+                case MCA_OP_MDL_RECONNECT_REQ:
+                    if (mca_ccb_uses_mdl_id(p_ccb, evt_data.hdr.mdl_id))
+                    {
+                        MCA_TRACE_ERROR ("the mdl_id is currently used in the CL(reconn)");
+                        reject_code = MCA_RSP_MDL_BUSY;
+                    }
+                    break;
+
+                case MCA_OP_MDL_ABORT_REQ:
+                    reject_code = MCA_RSP_BAD_OP;
+                    break;
+
+                case MCA_OP_MDL_DELETE_REQ:
+                    /* delete the associated mdl */
+                    mca_dcb_close_by_mdl_id(p_ccb, evt_data.hdr.mdl_id);
+                    send_rsp = TRUE;
+                    break;
+                }
+            }
+        }
+    }
+
+    if (((reject_code != MCA_RSP_SUCCESS) && (evt_data.hdr.op_code != MCA_OP_SYNC_INFO_IND))
+        || send_rsp) {
+        BT_HDR *p_buf = (BT_HDR *)osi_malloc(MCA_CTRL_MTU);
+        p_buf->offset = L2CAP_MIN_OFFSET;
+        p = p_start = (UINT8*)(p_buf + 1) + L2CAP_MIN_OFFSET;
+        *p++ = reject_opcode;
+        *p++ = reject_code;
+        UINT16_TO_BE_STREAM(p, evt_data.hdr.mdl_id);
+        /*
+          if (((*p_start) == MCA_OP_MDL_CREATE_RSP) && (reject_code == MCA_RSP_SUCCESS))
+          {
+          *p++ = evt_data.create_ind.cfg;
+          }
+        */
+
+        p_buf->len = p - p_start;
+        L2CA_DataWrite (p_ccb->lcid, p_buf);
+    }
+
+    if (reject_code == MCA_RSP_SUCCESS)
+    {
+        /* use the received GKI buffer to store information to double check response API */
+        p_rx_msg->op_code = evt_data.hdr.op_code;
+        p_rx_msg->mdl_id = evt_data.hdr.mdl_id;
+        p_ccb->p_rx_msg = p_rx_msg;
+        if (send_rsp)
+        {
+            osi_free(p_pkt);
+            p_ccb->p_rx_msg = NULL;
+        }
+        mca_ccb_report_event(p_ccb, evt_data.hdr.op_code, &evt_data);
+    }
+    else
+        osi_free(p_pkt);
+}
+
+/*******************************************************************************
+**
+** Function         mca_ccb_hdl_rsp
+**
+** Description      This function is called when a MCAP response is received from
+**                  the peer.  It calls the application callback function with
+**                  the results.
+**
+** Returns          void.
+**
+*******************************************************************************/
+void mca_ccb_hdl_rsp(tMCA_CCB *p_ccb, tMCA_CCB_EVT *p_data)
+{
+    BT_HDR  *p_pkt = &p_data->hdr;
+    UINT8   *p;
+    tMCA_CTRL   evt_data;
+    BOOLEAN     chk_mdl = FALSE;
+    tMCA_DCB    *p_dcb;
+    tMCA_RESULT result = MCA_BAD_HANDLE;
+    tMCA_TC_TBL *p_tbl;
+
+    if (p_ccb->p_tx_req)
+    {
+        /* verify that the received response matches the sent request */
+        p = (UINT8 *)(p_pkt + 1) + p_pkt->offset;
+        evt_data.hdr.op_code = *p++;
+        if ((evt_data.hdr.op_code == 0) ||
+            ((p_ccb->p_tx_req->op_code + 1) == evt_data.hdr.op_code))
+        {
+            evt_data.rsp.rsp_code = *p++;
+            mca_stop_timer(p_ccb);
+            BE_STREAM_TO_UINT16 (evt_data.hdr.mdl_id, p);
+            if (evt_data.hdr.op_code == MCA_OP_MDL_CREATE_RSP)
+            {
+                evt_data.create_cfm.cfg = *p++;
+                chk_mdl = TRUE;
+            }
+            else if (evt_data.hdr.op_code == MCA_OP_MDL_RECONNECT_RSP)
+                    chk_mdl = TRUE;
+
+            if (chk_mdl)
+            {
+                p_dcb = mca_dcb_by_hdl(p_ccb->p_tx_req->dcb_idx);
+                if (evt_data.rsp.rsp_code == MCA_RSP_SUCCESS)
+                {
+                    if (evt_data.hdr.mdl_id != p_dcb->mdl_id)
+                    {
+                        MCA_TRACE_ERROR ("peer's mdl_id=%d != our mdl_id=%d", evt_data.hdr.mdl_id, p_dcb->mdl_id);
+                        /* change the response code to be an error */
+                        if (evt_data.rsp.rsp_code == MCA_RSP_SUCCESS)
+                        {
+                            evt_data.rsp.rsp_code = MCA_RSP_BAD_MDL;
+                            /* send Abort */
+                            p_ccb->status = MCA_CCB_STAT_PENDING;
+                            MCA_Abort(mca_ccb_to_hdl(p_ccb));
+                        }
+                    }
+                    else if (p_dcb->p_chnl_cfg)
+                    {
+                        /* the data channel configuration is known. Proceed with data channel initiation */
+                        BTM_SetSecurityLevel(TRUE, "", BTM_SEC_SERVICE_MCAP_DATA, p_ccb->sec_mask,
+                            p_ccb->data_vpsm, BTM_SEC_PROTO_MCA, p_ccb->p_tx_req->dcb_idx);
+                        p_dcb->lcid = mca_l2c_open_req(p_ccb->peer_addr, p_ccb->data_vpsm, p_dcb->p_chnl_cfg);
+                        if (p_dcb->lcid)
+                        {
+                            p_tbl = mca_tc_tbl_dalloc(p_dcb);
+                            if (p_tbl)
+                            {
+                                p_tbl->state = MCA_TC_ST_CONN;
+                                p_ccb->status = MCA_CCB_STAT_PENDING;
+                                result = MCA_SUCCESS;
+                            }
+                        }
+                    }
+                    else
+                    {
+                        /* mark this MCL as pending and wait for MCA_DataChnlCfg */
+                        p_ccb->status = MCA_CCB_STAT_PENDING;
+                        result = MCA_SUCCESS;
+                    }
+                }
+
+                if (result != MCA_SUCCESS && p_dcb)
+                {
+                    mca_dcb_dealloc(p_dcb, NULL);
+                }
+            } /* end of chk_mdl */
+
+            if (p_ccb->status != MCA_CCB_STAT_PENDING)
+                osi_free_and_reset((void **)&p_ccb->p_tx_req);
+            mca_ccb_report_event(p_ccb, evt_data.hdr.op_code, &evt_data);
+        }
+        /* else a bad response is received */
+    }
+    else
+    {
+        /* not expecting any response. drop it */
+        MCA_TRACE_WARNING ("dropping received rsp (not expecting a response)");
+    }
+    osi_free(p_data);
+}
+
+/*******************************************************************************
+**
+** Function         mca_ccb_ll_open
+**
+** Description      This function is called to report MCA_CONNECT_IND_EVT event.
+**                  It also clears the congestion flag (ccb.cong).
+**
+** Returns          void.
+**
+*******************************************************************************/
+void mca_ccb_ll_open (tMCA_CCB *p_ccb, tMCA_CCB_EVT *p_data)
+{
+    tMCA_CTRL    evt_data;
+    p_ccb->cong  = FALSE;
+    evt_data.connect_ind.mtu = p_data->open.peer_mtu;
+    memcpy (evt_data.connect_ind.bd_addr, p_ccb->peer_addr, BD_ADDR_LEN);
+    mca_ccb_report_event (p_ccb, MCA_CONNECT_IND_EVT, &evt_data);
+}
+
+/*******************************************************************************
+**
+** Function         mca_ccb_dl_open
+**
+** Description      This function is called when data channel is open.
+**                  It clears p_tx_req to allow other message exchage on this CL.
+**
+** Returns          void.
+**
+*******************************************************************************/
+void mca_ccb_dl_open (tMCA_CCB *p_ccb, tMCA_CCB_EVT *p_data)
+{
+    UNUSED(p_data);
+
+    osi_free_and_reset((void **)&p_ccb->p_tx_req);
+    osi_free_and_reset((void **)&p_ccb->p_rx_msg);
+    p_ccb->status = MCA_CCB_STAT_NORM;
+}
+
diff --git a/rtkbt/code/bt/stack/mcap/mca_csm.c b/rtkbt/code/bt/stack/mcap/mca_csm.c
new file mode 100755
index 0000000..1ded765
--- /dev/null
+++ b/rtkbt/code/bt/stack/mcap/mca_csm.c
@@ -0,0 +1,383 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the implementation file for the MCAP Control channel state
+ *  machine.
+ *
+ ******************************************************************************/
+#include <string.h>
+
+#include "bt_target.h"
+#include "mca_api.h"
+#include "mca_defs.h"
+#include "mca_int.h"
+#include  "btu.h"
+
+/*****************************************************************************
+** data channel state machine constants and types
+*****************************************************************************/
+enum
+{
+    MCA_CCB_FREE_MSG,
+    MCA_CCB_SND_REQ,
+    MCA_CCB_SND_RSP,
+    MCA_CCB_DO_DISCONN,
+    MCA_CCB_CONG,
+    MCA_CCB_HDL_REQ,
+    MCA_CCB_HDL_RSP,
+    MCA_CCB_LL_OPEN,
+    MCA_CCB_DL_OPEN,
+    MCA_CCB_DEALLOC,
+    MCA_CCB_RSP_TOUT,
+    MCA_CCB_NUM_ACTIONS
+};
+#define MCA_CCB_IGNORE     MCA_CCB_NUM_ACTIONS
+
+/* action function list */
+const tMCA_CCB_ACTION mca_ccb_action[] = {
+    mca_ccb_free_msg,
+    mca_ccb_snd_req,
+    mca_ccb_snd_rsp,
+    mca_ccb_do_disconn,
+    mca_ccb_cong,
+    mca_ccb_hdl_req,
+    mca_ccb_hdl_rsp,
+    mca_ccb_ll_open,
+    mca_ccb_dl_open,
+    mca_ccb_dealloc,
+    mca_ccb_rsp_tout,
+};
+
+/* state table information */
+#define MCA_CCB_ACTIONS            1       /* number of actions */
+#define MCA_CCB_ACT_COL            0       /* position of action function */
+#define MCA_CCB_NEXT_STATE         1       /* position of next state */
+#define MCA_CCB_NUM_COLS           2       /* number of columns in state tables */
+
+/* state table for opening state */
+const UINT8 mca_ccb_st_opening[][MCA_CCB_NUM_COLS] = {
+/* Event                            Action              Next State */
+/* MCA_CCB_API_CONNECT_EVT    */   {MCA_CCB_IGNORE,     MCA_CCB_OPENING_ST},
+/* MCA_CCB_API_DISCONNECT_EVT */   {MCA_CCB_DO_DISCONN, MCA_CCB_CLOSING_ST},
+/* MCA_CCB_API_REQ_EVT        */   {MCA_CCB_FREE_MSG,   MCA_CCB_OPENING_ST},
+/* MCA_CCB_API_RSP_EVT        */   {MCA_CCB_IGNORE,     MCA_CCB_OPENING_ST},
+/* MCA_CCB_MSG_REQ_EVT        */   {MCA_CCB_FREE_MSG,   MCA_CCB_OPENING_ST},
+/* MCA_CCB_MSG_RSP_EVT        */   {MCA_CCB_FREE_MSG,   MCA_CCB_OPENING_ST},
+/* MCA_CCB_DL_OPEN_EVT        */   {MCA_CCB_IGNORE,     MCA_CCB_OPENING_ST},
+/* MCA_CCB_LL_OPEN_EVT        */   {MCA_CCB_LL_OPEN,    MCA_CCB_OPEN_ST},
+/* MCA_CCB_LL_CLOSE_EVT       */   {MCA_CCB_DEALLOC,    MCA_CCB_NULL_ST},
+/* MCA_CCB_LL_CONG_EVT        */   {MCA_CCB_CONG,       MCA_CCB_OPENING_ST},
+/* MCA_CCB_RSP_TOUT_EVT       */   {MCA_CCB_IGNORE,     MCA_CCB_OPENING_ST}
+};
+
+/* state table for open state */
+const UINT8 mca_ccb_st_open[][MCA_CCB_NUM_COLS] = {
+/* Event                            Action              Next State */
+/* MCA_CCB_API_CONNECT_EVT    */   {MCA_CCB_IGNORE,     MCA_CCB_OPEN_ST},
+/* MCA_CCB_API_DISCONNECT_EVT */   {MCA_CCB_DO_DISCONN, MCA_CCB_CLOSING_ST},
+/* MCA_CCB_API_REQ_EVT        */   {MCA_CCB_SND_REQ,    MCA_CCB_OPEN_ST},
+/* MCA_CCB_API_RSP_EVT        */   {MCA_CCB_SND_RSP,    MCA_CCB_OPEN_ST},
+/* MCA_CCB_MSG_REQ_EVT        */   {MCA_CCB_HDL_REQ,    MCA_CCB_OPEN_ST},
+/* MCA_CCB_MSG_RSP_EVT        */   {MCA_CCB_HDL_RSP,    MCA_CCB_OPEN_ST},
+/* MCA_CCB_DL_OPEN_EVT        */   {MCA_CCB_DL_OPEN,    MCA_CCB_OPEN_ST},
+/* MCA_CCB_LL_OPEN_EVT        */   {MCA_CCB_IGNORE,     MCA_CCB_OPEN_ST},
+/* MCA_CCB_LL_CLOSE_EVT       */   {MCA_CCB_DEALLOC,    MCA_CCB_NULL_ST},
+/* MCA_CCB_LL_CONG_EVT        */   {MCA_CCB_CONG,       MCA_CCB_OPEN_ST},
+/* MCA_CCB_RSP_TOUT_EVT       */   {MCA_CCB_RSP_TOUT,   MCA_CCB_OPEN_ST}
+};
+
+/* state table for closing state */
+const UINT8 mca_ccb_st_closing[][MCA_CCB_NUM_COLS] = {
+/* Event                            Action              Next State */
+/* MCA_CCB_API_CONNECT_EVT    */   {MCA_CCB_IGNORE,     MCA_CCB_CLOSING_ST},
+/* MCA_CCB_API_DISCONNECT_EVT */   {MCA_CCB_IGNORE,     MCA_CCB_CLOSING_ST},
+/* MCA_CCB_API_REQ_EVT        */   {MCA_CCB_FREE_MSG,   MCA_CCB_CLOSING_ST},
+/* MCA_CCB_API_RSP_EVT        */   {MCA_CCB_IGNORE,     MCA_CCB_CLOSING_ST},
+/* MCA_CCB_MSG_REQ_EVT        */   {MCA_CCB_FREE_MSG,   MCA_CCB_CLOSING_ST},
+/* MCA_CCB_MSG_RSP_EVT        */   {MCA_CCB_FREE_MSG,   MCA_CCB_CLOSING_ST},
+/* MCA_CCB_DL_OPEN_EVT        */   {MCA_CCB_IGNORE,     MCA_CCB_CLOSING_ST},
+/* MCA_CCB_LL_OPEN_EVT        */   {MCA_CCB_IGNORE,     MCA_CCB_CLOSING_ST},
+/* MCA_CCB_LL_CLOSE_EVT       */   {MCA_CCB_DEALLOC,    MCA_CCB_NULL_ST},
+/* MCA_CCB_LL_CONG_EVT        */   {MCA_CCB_IGNORE,     MCA_CCB_CLOSING_ST},
+/* MCA_CCB_RSP_TOUT_EVT       */   {MCA_CCB_IGNORE,     MCA_CCB_CLOSING_ST}
+};
+
+/* type for state table */
+typedef const UINT8 (*tMCA_CCB_ST_TBL)[MCA_CCB_NUM_COLS];
+
+/* state table */
+const tMCA_CCB_ST_TBL mca_ccb_st_tbl[] = {
+    mca_ccb_st_opening,
+    mca_ccb_st_open,
+    mca_ccb_st_closing
+};
+
+#if (BT_TRACE_VERBOSE == TRUE)
+/* verbose event strings for trace */
+static const char * const mca_ccb_evt_str[] = {
+    "API_CONNECT_EVT",
+    "API_DISCONNECT_EVT",
+    "API_REQ_EVT",
+    "API_RSP_EVT",
+    "MSG_REQ_EVT",
+    "MSG_RSP_EVT",
+    "DL_OPEN_EVT",
+    "LL_OPEN_EVT",
+    "LL_CLOSE_EVT",
+    "LL_CONG_EVT",
+    "RSP_TOUT_EVT"
+};
+/* verbose state strings for trace */
+static const char * const mca_ccb_st_str[] = {
+    "NULL_ST",
+    "OPENING_ST",
+    "OPEN_ST",
+    "CLOSING_ST"
+};
+#endif
+
+/*******************************************************************************
+**
+** Function         mca_stop_timer
+**
+** Description      This function is stop a MCAP timer
+**
+**                  This function is for use internal to MCAP only.
+**
+** Returns          void
+**
+*******************************************************************************/
+void mca_stop_timer(tMCA_CCB *p_ccb)
+{
+    alarm_cancel(p_ccb->mca_ccb_timer);
+}
+
+/*******************************************************************************
+**
+** Function         mca_ccb_event
+**
+** Description      This function is the CCB state machine main function.
+**                  It uses the state and action function tables to execute
+**                  action functions.
+**
+** Returns          void.
+**
+*******************************************************************************/
+void mca_ccb_event(tMCA_CCB *p_ccb, UINT8 event, tMCA_CCB_EVT *p_data)
+{
+    tMCA_CCB_ST_TBL    state_table;
+    UINT8              action;
+
+#if (BT_TRACE_VERBOSE == TRUE)
+    MCA_TRACE_EVENT("CCB ccb=%d event=%s state=%s", mca_ccb_to_hdl(p_ccb), mca_ccb_evt_str[event], mca_ccb_st_str[p_ccb->state]);
+#else
+    MCA_TRACE_EVENT("CCB ccb=%d event=%d state=%d", mca_ccb_to_hdl(p_ccb), event, p_ccb->state);
+#endif
+
+    /* look up the state table for the current state */
+    state_table = mca_ccb_st_tbl[p_ccb->state - 1];
+
+    /* set next state */
+    p_ccb->state = state_table[event][MCA_CCB_NEXT_STATE];
+
+    /* execute action functions */
+    if ((action = state_table[event][MCA_CCB_ACT_COL]) != MCA_CCB_IGNORE)
+    {
+        (*mca_ccb_action[action])(p_ccb, p_data);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         mca_ccb_by_bd
+**
+** Description      This function looks up the CCB based on the BD address.
+**                  It returns a pointer to the CCB.
+**                  If no CCB is found it returns NULL.
+**
+** Returns          void.
+**
+*******************************************************************************/
+tMCA_CCB *mca_ccb_by_bd(tMCA_HANDLE handle, BD_ADDR bd_addr)
+{
+    tMCA_CCB *p_ccb = NULL;
+    tMCA_RCB *p_rcb = mca_rcb_by_handle(handle);
+    tMCA_CCB *p_ccb_tmp;
+    int       i;
+
+    if (p_rcb)
+    {
+        i = handle-1;
+        p_ccb_tmp = &mca_cb.ccb[i*MCA_NUM_LINKS];
+        for (i=0; i<MCA_NUM_LINKS; i++, p_ccb_tmp++)
+        {
+            if (p_ccb_tmp->state != MCA_CCB_NULL_ST && memcmp(p_ccb_tmp->peer_addr, bd_addr, BD_ADDR_LEN) == 0)
+            {
+                p_ccb = p_ccb_tmp;
+                break;
+            }
+        }
+    }
+    return p_ccb;
+}
+
+/*******************************************************************************
+**
+** Function         mca_ccb_alloc
+**
+** Description      This function allocates a CCB and copies the BD address to
+**                  the CCB.  It returns a pointer to the CCB.  If no CCB can
+**                  be allocated it returns NULL.
+**
+** Returns          void.
+**
+*******************************************************************************/
+tMCA_CCB *mca_ccb_alloc(tMCA_HANDLE handle, BD_ADDR bd_addr)
+{
+    tMCA_CCB *p_ccb = NULL;
+    tMCA_RCB *p_rcb = mca_rcb_by_handle(handle);
+    tMCA_CCB *p_ccb_tmp;
+    int       i;
+
+    MCA_TRACE_DEBUG("mca_ccb_alloc handle:0x%x", handle);
+    if (p_rcb)
+    {
+        i = handle-1;
+        p_ccb_tmp = &mca_cb.ccb[i*MCA_NUM_LINKS];
+        for (i=0; i<MCA_NUM_LINKS; i++, p_ccb_tmp++)
+        {
+            if (p_ccb_tmp->state == MCA_CCB_NULL_ST)
+            {
+                p_ccb_tmp->p_rcb = p_rcb;
+                p_ccb_tmp->mca_ccb_timer = alarm_new("mca.mca_ccb_timer");
+                p_ccb_tmp->state = MCA_CCB_OPENING_ST;
+                p_ccb_tmp->cong  = TRUE;
+                memcpy(p_ccb_tmp->peer_addr, bd_addr, BD_ADDR_LEN);
+                p_ccb = p_ccb_tmp;
+                break;
+            }
+        }
+    }
+    return p_ccb;
+}
+
+
+/*******************************************************************************
+**
+** Function         mca_ccb_dealloc
+**
+** Description      This function deallocates a CCB.
+**
+** Returns          void.
+**
+*******************************************************************************/
+void mca_ccb_dealloc(tMCA_CCB *p_ccb, tMCA_CCB_EVT *p_data)
+{
+    tMCA_CTRL   evt_data;
+
+    MCA_TRACE_DEBUG("mca_ccb_dealloc ctrl_vpsm:0x%x", p_ccb->ctrl_vpsm);
+    mca_dcb_close_by_mdl_id (p_ccb, MCA_ALL_MDL_ID);
+    if (p_ccb->ctrl_vpsm)
+    {
+        L2CA_Deregister (p_ccb->ctrl_vpsm);
+    }
+    if (p_ccb->data_vpsm)
+    {
+        L2CA_Deregister (p_ccb->data_vpsm);
+    }
+    osi_free_and_reset((void **)&p_ccb->p_rx_msg);
+    osi_free_and_reset((void **)&p_ccb->p_tx_req);
+    mca_stop_timer(p_ccb);
+
+    if (p_data)
+    {
+        /* non-NULL -> an action function -> report disconnect event */
+        memcpy (evt_data.disconnect_ind.bd_addr, p_ccb->peer_addr, BD_ADDR_LEN);
+        evt_data.disconnect_ind.reason = p_data->close.reason;
+        mca_ccb_report_event(p_ccb, MCA_DISCONNECT_IND_EVT, &evt_data);
+    }
+    mca_free_tc_tbl_by_lcid (p_ccb->lcid);
+    alarm_free(p_ccb->mca_ccb_timer);
+    memset(p_ccb, 0, sizeof(tMCA_CCB));
+}
+
+/*******************************************************************************
+**
+** Function         mca_ccb_to_hdl
+**
+** Description      This function converts a pointer to a CCB to a tMCA_CL
+**                  and returns the value.
+**
+** Returns          void.
+**
+*******************************************************************************/
+tMCA_CL mca_ccb_to_hdl(tMCA_CCB *p_ccb)
+{
+    return (UINT8) (p_ccb - mca_cb.ccb + 1);
+}
+
+/*******************************************************************************
+**
+** Function         mca_ccb_by_hdl
+**
+** Description      This function converts an index value to a CCB.  It returns
+**                  a pointer to the CCB.  If no valid CCB matches the index it
+**                  returns NULL.
+**
+** Returns          void.
+**
+*******************************************************************************/
+tMCA_CCB *mca_ccb_by_hdl(tMCA_CL mcl)
+{
+    tMCA_CCB * p_ccb = NULL;
+    if (mcl && mcl <= MCA_NUM_CCBS && mca_cb.ccb[mcl-1].state)
+        p_ccb = &mca_cb.ccb[mcl-1];
+    return p_ccb;
+}
+
+
+/*******************************************************************************
+**
+** Function         mca_ccb_uses_mdl_id
+**
+** Description      This function checkes if a given mdl_id is in use.
+**
+** Returns          TRUE, if the given mdl_id is currently used in the MCL.
+**
+*******************************************************************************/
+BOOLEAN mca_ccb_uses_mdl_id(tMCA_CCB *p_ccb, UINT16 mdl_id)
+{
+    BOOLEAN uses = FALSE;
+    tMCA_DCB *p_dcb;
+    int       i;
+
+    i = mca_ccb_to_hdl(p_ccb)-1;
+    p_dcb = &mca_cb.dcb[i*MCA_NUM_MDLS];
+    for (i=0; i<MCA_NUM_MDLS; i++, p_dcb++)
+    {
+        if (p_dcb->state != MCA_DCB_NULL_ST && p_dcb->mdl_id == mdl_id)
+        {
+            uses = TRUE;
+            break;
+        }
+    }
+
+    return uses;
+}
diff --git a/rtkbt/code/bt/stack/mcap/mca_dact.c b/rtkbt/code/bt/stack/mcap/mca_dact.c
new file mode 100755
index 0000000..63e9ad2
--- /dev/null
+++ b/rtkbt/code/bt/stack/mcap/mca_dact.c
@@ -0,0 +1,168 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the implementation file for the MCAP Data Channel Action
+ *  Functions.
+ *
+ ******************************************************************************/
+
+#include <stddef.h>
+#include "bt_target.h"
+#include "bt_utils.h"
+#include "bt_common.h"
+#include "mca_api.h"
+#include "mca_int.h"
+
+/*******************************************************************************
+**
+** Function         mca_dcb_report_cong
+**
+** Description      This function is called to report the congestion flag.
+**
+** Returns          void.
+**
+*******************************************************************************/
+void mca_dcb_report_cong (tMCA_DCB *p_dcb)
+{
+    tMCA_CTRL   evt_data;
+
+    evt_data.cong_chg.cong   = p_dcb->cong;
+    evt_data.cong_chg.mdl    = mca_dcb_to_hdl(p_dcb);
+    evt_data.cong_chg.mdl_id = p_dcb->mdl_id;
+    mca_ccb_report_event (p_dcb->p_ccb, MCA_CONG_CHG_EVT, &evt_data);
+}
+
+/*******************************************************************************
+**
+** Function         mca_dcb_tc_open
+**
+** Description      This function is called to report MCA_OPEN_IND_EVT or
+**                  MCA_OPEN_CFM_EVT event.
+**                  It also clears the congestion flag (dcb.cong).
+**
+** Returns          void.
+**
+*******************************************************************************/
+void mca_dcb_tc_open (tMCA_DCB *p_dcb, tMCA_DCB_EVT *p_data)
+{
+    tMCA_CTRL   evt_data;
+    tMCA_CCB    *p_ccb = p_dcb->p_ccb;
+    UINT8       event = MCA_OPEN_IND_EVT;
+
+    if (p_data->open.param == MCA_INT)
+        event = MCA_OPEN_CFM_EVT;
+    p_dcb->cong  = FALSE;
+    evt_data.open_cfm.mtu       = p_data->open.peer_mtu;
+    evt_data.open_cfm.mdl_id    = p_dcb->mdl_id;
+    evt_data.open_cfm.mdl       = mca_dcb_to_hdl(p_dcb);
+    mca_ccb_event (p_ccb, MCA_CCB_DL_OPEN_EVT, NULL);
+    mca_ccb_report_event (p_ccb, event, &evt_data);
+}
+
+/*******************************************************************************
+**
+** Function         mca_dcb_cong
+**
+** Description      This function sets the congestion state for the DCB.
+**
+** Returns          void.
+**
+*******************************************************************************/
+void mca_dcb_cong (tMCA_DCB *p_dcb, tMCA_DCB_EVT *p_data)
+{
+    p_dcb->cong  = p_data->llcong;
+    mca_dcb_report_cong(p_dcb);
+}
+
+/*******************************************************************************
+**
+** Function         mca_dcb_free_data
+**
+** Description      This function frees the received message.
+**
+** Returns          void.
+**
+*******************************************************************************/
+void mca_dcb_free_data(tMCA_DCB *p_dcb, tMCA_DCB_EVT *p_data)
+{
+    UNUSED(p_dcb);
+    osi_free(p_data);
+}
+
+/*******************************************************************************
+**
+** Function         mca_dcb_do_disconn
+**
+** Description      This function closes a data channel.
+**
+** Returns          void.
+**
+*******************************************************************************/
+void mca_dcb_do_disconn (tMCA_DCB *p_dcb, tMCA_DCB_EVT *p_data)
+{
+    tMCA_CLOSE  close;
+    UNUSED(p_data);
+
+    if ((p_dcb->lcid == 0) || (L2CA_DisconnectReq(p_dcb->lcid) == FALSE))
+    {
+        close.param  = MCA_INT;
+        close.reason = L2CAP_DISC_OK;
+        close.lcid   = 0;
+        mca_dcb_event(p_dcb, MCA_DCB_TC_CLOSE_EVT, (tMCA_DCB_EVT *) &close);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         mca_dcb_snd_data
+**
+** Description      This function sends the data from application to the peer device.
+**
+** Returns          void.
+**
+*******************************************************************************/
+void mca_dcb_snd_data (tMCA_DCB *p_dcb, tMCA_DCB_EVT *p_data)
+{
+    UINT8   status;
+
+    /* do not need to check cong, because API already checked the status */
+    status = L2CA_DataWrite (p_dcb->lcid, p_data->p_pkt);
+    if (status == L2CAP_DW_CONGESTED)
+    {
+        p_dcb->cong = TRUE;
+        mca_dcb_report_cong(p_dcb);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         mca_dcb_hdl_data
+**
+** Description      This function reports the received data through the data
+**                  callback function.
+**
+** Returns          void.
+**
+*******************************************************************************/
+void mca_dcb_hdl_data (tMCA_DCB *p_dcb, tMCA_DCB_EVT *p_data)
+{
+    (*p_dcb->p_cs->p_data_cback) (mca_dcb_to_hdl(p_dcb), (BT_HDR *)p_data);
+}
+
diff --git a/rtkbt/code/bt/stack/mcap/mca_dsm.c b/rtkbt/code/bt/stack/mcap/mca_dsm.c
new file mode 100755
index 0000000..c76e020
--- /dev/null
+++ b/rtkbt/code/bt/stack/mcap/mca_dsm.c
@@ -0,0 +1,346 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the implementation file for the MCAP Data chahnel state machine.
+ *
+ ******************************************************************************/
+#include <string.h>
+
+#include "bt_target.h"
+#include "mca_api.h"
+#include "mca_defs.h"
+#include "mca_int.h"
+
+/*****************************************************************************
+** data channel state machine constants and types
+*****************************************************************************/
+enum
+{
+    MCA_DCB_TC_OPEN,
+    MCA_DCB_CONG,
+    MCA_DCB_FREE_DATA,
+    MCA_DCB_DEALLOC,
+    MCA_DCB_DO_DISCONN,
+    MCA_DCB_SND_DATA,
+    MCA_DCB_HDL_DATA,
+    MCA_DCB_NUM_ACTIONS
+};
+#define MCA_DCB_IGNORE     MCA_DCB_NUM_ACTIONS
+
+/* action function list */
+const tMCA_DCB_ACTION mca_dcb_action[] = {
+    mca_dcb_tc_open,
+    mca_dcb_cong,
+    mca_dcb_free_data,
+    mca_dcb_dealloc,
+    mca_dcb_do_disconn,
+    mca_dcb_snd_data,
+    mca_dcb_hdl_data
+};
+
+/* state table information */
+#define MCA_DCB_ACTIONS            1       /* number of actions */
+#define MCA_DCB_ACT_COL            0       /* position of action function */
+#define MCA_DCB_NEXT_STATE         1       /* position of next state */
+#define MCA_DCB_NUM_COLS           2       /* number of columns in state tables */
+
+/* state table for opening state */
+const UINT8 mca_dcb_st_opening[][MCA_DCB_NUM_COLS] = {
+/* Event                            Action              Next State */
+/* MCA_DCB_API_CLOSE_EVT    */   {MCA_DCB_DO_DISCONN,   MCA_DCB_CLOSING_ST},
+/* MCA_DCB_API_WRITE_EVT    */   {MCA_DCB_IGNORE,       MCA_DCB_OPENING_ST},
+/* MCA_DCB_TC_OPEN_EVT      */   {MCA_DCB_TC_OPEN,      MCA_DCB_OPEN_ST},
+/* MCA_DCB_TC_CLOSE_EVT     */   {MCA_DCB_DEALLOC,      MCA_DCB_NULL_ST},
+/* MCA_DCB_TC_CONG_EVT      */   {MCA_DCB_CONG,         MCA_DCB_OPENING_ST},
+/* MCA_DCB_TC_DATA_EVT      */   {MCA_DCB_FREE_DATA,    MCA_DCB_OPENING_ST}
+};
+
+/* state table for open state */
+const UINT8 mca_dcb_st_open[][MCA_DCB_NUM_COLS] = {
+/* Event                            Action              Next State */
+/* MCA_DCB_API_CLOSE_EVT    */   {MCA_DCB_DO_DISCONN,   MCA_DCB_CLOSING_ST},
+/* MCA_DCB_API_WRITE_EVT    */   {MCA_DCB_SND_DATA,     MCA_DCB_OPEN_ST},
+/* MCA_DCB_TC_OPEN_EVT      */   {MCA_DCB_IGNORE,       MCA_DCB_OPEN_ST},
+/* MCA_DCB_TC_CLOSE_EVT     */   {MCA_DCB_DEALLOC,      MCA_DCB_NULL_ST},
+/* MCA_DCB_TC_CONG_EVT      */   {MCA_DCB_CONG,         MCA_DCB_OPEN_ST},
+/* MCA_DCB_TC_DATA_EVT      */   {MCA_DCB_HDL_DATA,     MCA_DCB_OPEN_ST}
+};
+
+/* state table for closing state */
+const UINT8 mca_dcb_st_closing[][MCA_DCB_NUM_COLS] = {
+/* Event                            Action              Next State */
+/* MCA_DCB_API_CLOSE_EVT    */   {MCA_DCB_IGNORE,       MCA_DCB_CLOSING_ST},
+/* MCA_DCB_API_WRITE_EVT    */   {MCA_DCB_IGNORE,       MCA_DCB_CLOSING_ST},
+/* MCA_DCB_TC_OPEN_EVT      */   {MCA_DCB_TC_OPEN,      MCA_DCB_OPEN_ST},
+/* MCA_DCB_TC_CLOSE_EVT     */   {MCA_DCB_DEALLOC,      MCA_DCB_NULL_ST},
+/* MCA_DCB_TC_CONG_EVT      */   {MCA_DCB_IGNORE,       MCA_DCB_CLOSING_ST},
+/* MCA_DCB_TC_DATA_EVT      */   {MCA_DCB_FREE_DATA,    MCA_DCB_CLOSING_ST}
+};
+
+/* type for state table */
+typedef const UINT8 (*tMCA_DCB_ST_TBL)[MCA_DCB_NUM_COLS];
+
+/* state table */
+const tMCA_DCB_ST_TBL mca_dcb_st_tbl[] = {
+    mca_dcb_st_opening,
+    mca_dcb_st_open,
+    mca_dcb_st_closing
+};
+
+#if (BT_TRACE_VERBOSE == TRUE)
+/* verbose event strings for trace */
+const char * const mca_dcb_evt_str[] = {
+    "API_CLOSE_EVT",
+    "API_WRITE_EVT",
+    "TC_OPEN_EVT",
+    "TC_CLOSE_EVT",
+    "TC_CONG_EVT",
+    "TC_DATA_EVT"
+};
+/* verbose state strings for trace */
+const char * const mca_dcb_st_str[] = {
+    "NULL_ST",
+    "OPENING_ST",
+    "OPEN_ST",
+    "CLOSING_ST"
+};
+#endif
+
+/*******************************************************************************
+**
+** Function         mca_dcb_event
+**
+** Description      This function is the DCB state machine main function.
+**                  It uses the state and action function tables to execute
+**                  action functions.
+**
+** Returns          void.
+**
+*******************************************************************************/
+void mca_dcb_event(tMCA_DCB *p_dcb, UINT8 event, tMCA_DCB_EVT *p_data)
+{
+    tMCA_DCB_ST_TBL    state_table;
+    UINT8              action;
+
+    if (p_dcb == NULL)
+        return;
+#if (BT_TRACE_VERBOSE == TRUE)
+    MCA_TRACE_EVENT("DCB dcb=%d event=%s state=%s", mca_dcb_to_hdl(p_dcb), mca_dcb_evt_str[event], mca_dcb_st_str[p_dcb->state]);
+#else
+    MCA_TRACE_EVENT("DCB dcb=%d event=%d state=%d", mca_dcb_to_hdl(p_dcb), event, p_dcb->state);
+#endif
+
+    /* look up the state table for the current state */
+    state_table = mca_dcb_st_tbl[p_dcb->state - 1];
+
+    /* set next state */
+    p_dcb->state = state_table[event][MCA_DCB_NEXT_STATE];
+
+    /* execute action functions */
+    if ((action = state_table[event][MCA_DCB_ACT_COL]) != MCA_DCB_IGNORE)
+    {
+        (*mca_dcb_action[action])(p_dcb, p_data);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         mca_dcb_alloc
+**
+** Description      This function is called to allocate an DCB.
+**                  It initializes the DCB with the data passed to the function.
+**
+** Returns          tMCA_DCB *
+**
+*******************************************************************************/
+tMCA_DCB *mca_dcb_alloc(tMCA_CCB*p_ccb, tMCA_DEP dep)
+{
+    tMCA_DCB *p_dcb = NULL, *p_dcb_tmp;
+    tMCA_RCB *p_rcb = p_ccb->p_rcb;
+    tMCA_CS  *p_cs;
+    int       i, max;
+
+    if (dep < MCA_NUM_DEPS)
+    {
+        p_cs = &p_rcb->dep[dep];
+        i = mca_ccb_to_hdl(p_ccb)-1;
+        p_dcb_tmp = &mca_cb.dcb[i*MCA_NUM_MDLS];
+        /* make sure p_cs->max_mdl is smaller than MCA_NUM_MDLS at MCA_CreateDep */
+        max = p_cs->max_mdl;
+        for (i=0; i<max; i++, p_dcb_tmp++)
+        {
+            if (p_dcb_tmp->state == MCA_DCB_NULL_ST)
+            {
+                p_dcb_tmp->p_ccb = p_ccb;
+                p_dcb_tmp->state = MCA_DCB_OPENING_ST;
+                p_dcb_tmp->cong  = TRUE;
+                p_dcb_tmp->p_cs  = p_cs;
+                p_dcb = p_dcb_tmp;
+                break;
+            }
+        }
+    }
+    return p_dcb;
+}
+
+/*******************************************************************************
+**
+** Function         mca_dep_free_mdl
+**
+** Description      This function is called to check the number of free mdl for
+**                  the given dep.
+**
+** Returns          the number of free mdl for the given dep
+**
+*******************************************************************************/
+UINT8 mca_dep_free_mdl(tMCA_CCB *p_ccb, tMCA_DEP dep)
+{
+    tMCA_DCB *p_dcb;
+    tMCA_RCB *p_rcb = p_ccb->p_rcb;
+    tMCA_CS  *p_cs;
+    int       i, max;
+    UINT8   count = 0;
+    UINT8   left;
+
+    if (dep < MCA_NUM_DEPS)
+    {
+        p_cs = &p_rcb->dep[dep];
+        i = mca_ccb_to_hdl(p_ccb)-1;
+        p_dcb = &mca_cb.dcb[i * MCA_NUM_MDLS];
+        /* make sure p_cs->max_mdl is smaller than MCA_NUM_MDLS at MCA_CreateDep */
+        max = p_cs->max_mdl;
+        for (i=0; i<max; i++, p_dcb++)
+        {
+            if ((p_dcb->state != MCA_DCB_NULL_ST) && (p_dcb->p_cs == p_cs))
+            {
+                count++;
+                break;
+            }
+        }
+    }
+    else
+    {
+        max = 0;
+        MCA_TRACE_WARNING("Invalid Dep ID");
+    }
+    left = max - count;
+    return left;
+}
+
+/*******************************************************************************
+**
+** Function         mca_dcb_dealloc
+**
+** Description      This function deallocates an DCB.
+**
+** Returns          void.
+**
+*******************************************************************************/
+void mca_dcb_dealloc(tMCA_DCB *p_dcb, tMCA_DCB_EVT *p_data)
+{
+    tMCA_CCB *p_ccb = p_dcb->p_ccb;
+    UINT8    event = MCA_CLOSE_IND_EVT;
+    tMCA_CTRL   evt_data;
+
+    MCA_TRACE_DEBUG("mca_dcb_dealloc");
+    osi_free_and_reset((void **)&p_dcb->p_data);
+    if (p_data)
+    {
+        /* non-NULL -> an action function -> report disconnect event */
+        evt_data.close_cfm.mdl      = mca_dcb_to_hdl(p_dcb);
+        evt_data.close_cfm.reason   = p_data->close.reason;
+        evt_data.close_cfm.mdl_id   = p_dcb->mdl_id;
+        if (p_data->close.param == MCA_INT)
+            event = MCA_CLOSE_CFM_EVT;
+        if (p_data->close.lcid)
+            mca_ccb_report_event(p_ccb, event, &evt_data);
+    }
+    mca_free_tc_tbl_by_lcid (p_dcb->lcid);
+    memset (p_dcb, 0, sizeof (tMCA_DCB));
+}
+
+/*******************************************************************************
+**
+** Function         mca_dcb_to_hdl
+**
+** Description      This function converts a pointer to an DCB to a handle (tMCA_DL).
+**                  It returns the handle.
+**
+** Returns          tMCA_DL.
+**
+*******************************************************************************/
+tMCA_DL mca_dcb_to_hdl(tMCA_DCB *p_dcb)
+{
+    return (UINT8) (p_dcb - mca_cb.dcb + 1);
+}
+
+/*******************************************************************************
+**
+** Function         mca_dcb_by_hdl
+**
+** Description      This function finds the DCB for a handle (tMCA_DL).
+**                  It returns a pointer to the DCB.
+**                  If no DCB matches the handle it returns NULL.
+**
+** Returns          tMCA_DCB *
+**
+*******************************************************************************/
+tMCA_DCB *mca_dcb_by_hdl(tMCA_DL hdl)
+{
+    tMCA_DCB * p_dcb = NULL;
+    if (hdl && hdl <= MCA_NUM_DCBS && mca_cb.dcb[hdl-1].state)
+        p_dcb = &mca_cb.dcb[hdl-1];
+    return p_dcb;
+}
+
+/*******************************************************************************
+**
+** Function         mca_dcb_close_by_mdl_id
+**
+** Description      This function finds the DCB for a mdl_id and
+**                  disconnect the mdl
+**
+** Returns          void
+**
+*******************************************************************************/
+void mca_dcb_close_by_mdl_id(tMCA_CCB*p_ccb, UINT16 mdl_id)
+{
+    tMCA_DCB *p_dcb;
+    int       i;
+
+    MCA_TRACE_DEBUG("mca_dcb_close_by_mdl_id mdl_id=%d", mdl_id);
+    i = mca_ccb_to_hdl(p_ccb)-1;
+    p_dcb = &mca_cb.dcb[i*MCA_NUM_MDLS];
+    for (i=0; i<MCA_NUM_MDLS; i++, p_dcb++)
+    {
+        if (p_dcb->state)
+        {
+            if (p_dcb->mdl_id == mdl_id)
+            {
+                mca_dcb_event(p_dcb, MCA_DCB_API_CLOSE_EVT, NULL);
+                break;
+            }
+            else if (mdl_id == MCA_ALL_MDL_ID)
+            {
+                mca_dcb_event(p_dcb, MCA_DCB_API_CLOSE_EVT, NULL);
+            }
+        }
+    }
+}
diff --git a/rtkbt/code/bt/stack/mcap/mca_int.h b/rtkbt/code/bt/stack/mcap/mca_int.h
new file mode 100755
index 0000000..8546335
--- /dev/null
+++ b/rtkbt/code/bt/stack/mcap/mca_int.h
@@ -0,0 +1,365 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains interfaces which are internal to MCAP.
+ *
+ ******************************************************************************/
+#ifndef MCA_INT_H
+#define MCA_INT_H
+#include "bt_common.h"
+#include "osi/include/alarm.h"
+#include "mca_api.h"
+
+/*****************************************************************************
+** constants
+*****************************************************************************/
+
+/* INT initiates the L2CAP channel */
+#define MCA_ACP     0
+#define MCA_INT     1
+
+/*****************************************************************************
+**  Type Definitions
+*****************************************************************************/
+
+/* Header structure for api/received request/response. */
+typedef struct {
+    BT_HDR          hdr;        /* layer specific information */
+    UINT8           op_code;    /* the request/response opcode */
+    UINT8           rsp_code;   /* valid only if op_code is a response */
+    UINT16          mdl_id;     /* the MDL ID associated with this request/response */
+    UINT8           param;      /* other parameter */
+    UINT8           mdep_id;    /* the MDEP ID associated with this request/response */
+    /* tMCA_HANDLE     rcb_idx;    For internal use only */
+    /* tMCA_CL         ccb_idx;    For internal use only */
+    tMCA_DL         dcb_idx;    /* For internal use only */
+} tMCA_CCB_MSG;
+
+/* This data structure is associated with the AVDT_OPEN_IND_EVT and AVDT_OPEN_CFM_EVT. */
+typedef struct {
+    BT_HDR          hdr;                /* Event header */
+    UINT16          peer_mtu;           /* Transport channel L2CAP MTU of the peer */
+    UINT16          lcid;               /* L2CAP LCID  */
+    UINT8           param;
+} tMCA_OPEN;
+
+typedef struct {
+    UINT16          reason;     /* disconnect reason from L2CAP */
+    UINT8           param;      /* MCA_INT or MCA_ACP */
+    UINT16          lcid;       /* L2CAP LCID  */
+} tMCA_CLOSE;
+
+/* Header structure for state machine event parameters. */
+typedef union {
+    BT_HDR          hdr;        /* layer specific information */
+    tMCA_CCB_MSG    api;
+    BOOLEAN         llcong;
+    UINT8           param;
+    tMCA_OPEN       open;
+    tMCA_CLOSE      close;
+} tMCA_CCB_EVT;
+
+/* control channel states */
+enum
+{
+    MCA_CCB_NULL_ST,        /* not allocated */
+    MCA_CCB_OPENING_ST,
+    MCA_CCB_OPEN_ST,        /* open */
+    MCA_CCB_CLOSING_ST,		/* disconnecting */
+    MCA_CCB_MAX_ST
+};
+typedef UINT8 tMCA_CCB_STATE;
+
+/* control channel events */
+enum
+{
+    MCA_CCB_API_CONNECT_EVT,    /* application initiates a connect request. */
+    MCA_CCB_API_DISCONNECT_EVT, /* application initiates a disconnect request. */
+    MCA_CCB_API_REQ_EVT,        /* application initiates a request. The request may be create_mdl, delete_mdl, reconnect_mdl or abort_mdl. */
+    MCA_CCB_API_RSP_EVT,        /* application initiates a create_mdl or reconnect_mdl response. */
+    MCA_CCB_MSG_REQ_EVT,        /* a create_mdl, delete_mdl, reconnect_mdl or abort_mdl request message is received from the peer. */
+    MCA_CCB_MSG_RSP_EVT,        /* Response received event.  This event is sent whenever a response message is received for an outstanding request message. */
+    MCA_CCB_DL_OPEN_EVT,        /* data channel open. */
+    MCA_CCB_LL_OPEN_EVT,        /* Lower layer open.  This event is sent when the lower layer channel is open.  */
+    MCA_CCB_LL_CLOSE_EVT,       /* Lower layer close.  This event is sent when the lower layer channel is closed. */
+    MCA_CCB_LL_CONG_EVT,        /* Lower layer congestion.  This event is sent when the lower layer is congested. */
+    MCA_CCB_RSP_TOUT_EVT        /* time out for waiting the message response on the control channel */
+};
+
+/* Header structure for callback event parameters. */
+typedef union {
+    tMCA_OPEN       open;
+    tMCA_CLOSE      close;
+    BT_HDR          hdr;        /* layer specific information */
+    BT_HDR          *p_pkt;
+    BOOLEAN         llcong;
+    UINT16          mdl_id;     /* the MDL ID associated with this request/response */
+    /* tMCA_HANDLE     rcb_idx;    For internal use only */
+    /* tMCA_CL         ccb_idx;    For internal use only */
+    /* tMCA_DL         dcb_idx;    For internal use only */
+} tMCA_DCB_EVT;
+
+/* data channel states */
+enum
+{
+    MCA_DCB_NULL_ST,        /* not allocated */
+    MCA_DCB_OPENING_ST,     /* create/reconnect sequence is successful, waiting for data channel connection */
+    MCA_DCB_OPEN_ST,        /* open */
+    MCA_DCB_CLOSING_ST,     /* disconnecting */
+    MCA_DCB_MAX_ST
+};
+typedef UINT8 tMCA_DCB_STATE;
+
+/* data channel events */
+enum
+{
+    MCA_DCB_API_CLOSE_EVT,      /* This event is sent when the application wants to disconnect the data channel.*/
+    MCA_DCB_API_WRITE_EVT,      /* This event is sent when the application wants to send a data packet to the peer.*/
+    MCA_DCB_TC_OPEN_EVT,        /* Transport Channel open.  This event is sent when the channel is open.*/
+    MCA_DCB_TC_CLOSE_EVT,       /* Transport Channel close.*/
+    MCA_DCB_TC_CONG_EVT,        /* Transport Channel congestion status.*/
+    MCA_DCB_TC_DATA_EVT         /* This event is sent when a data packet is received from the peer.*/
+};
+
+
+
+
+/* "states" used in transport channel table */
+#define MCA_TC_ST_UNUSED   0       /* Unused - unallocated */
+#define MCA_TC_ST_IDLE     1       /* No connection */
+#define MCA_TC_ST_ACP      2       /* Waiting to accept a connection */
+#define MCA_TC_ST_INT      3       /* Initiating a connection */
+#define MCA_TC_ST_CONN     4       /* Waiting for connection confirm */
+#define MCA_TC_ST_CFG      5       /* Waiting for configuration complete */
+#define MCA_TC_ST_OPEN     6       /* Channel opened */
+#define MCA_TC_ST_SEC_INT  7       /* Security process as INT */
+#define MCA_TC_ST_SEC_ACP  8       /* Security process as ACP */
+
+/* Configuration flags. tMCA_TC_TBL.cfg_flags */
+#define MCA_L2C_CFG_IND_DONE   (1<<0)
+#define MCA_L2C_CFG_CFM_DONE   (1<<1)
+#define MCA_L2C_CFG_CONN_INT   (1<<2)
+#define MCA_L2C_CFG_CONN_ACP   (1<<3)
+#define MCA_L2C_CFG_DISCN_INT  (1<<4)
+#define MCA_L2C_CFG_DISCN_ACP  (1<<5)
+
+
+#define MCA_CTRL_TCID       0   /* to identify control channel by tMCA_TC_TBL.tcid */
+
+/* transport channel table */
+typedef struct {
+    UINT16  peer_mtu;       /* L2CAP mtu of the peer device */
+    UINT16  my_mtu;         /* Our MTU for this channel */
+    UINT16  lcid;           /* L2CAP LCID */
+    UINT8   tcid;           /* transport channel id (0, for control channel. (MDEP ID + 1) for data channel) */
+    tMCA_DL cb_idx;         /* 1-based index to ccb or dcb */
+    UINT8   state;          /* transport channel state */
+    UINT8   cfg_flags;      /* L2CAP configuration flags */
+    UINT8   id;             /* L2CAP id sent by peer device (need this to handle security pending) */
+} tMCA_TC_TBL;
+
+/* transport control block */
+typedef struct {
+    tMCA_TC_TBL     tc_tbl[MCA_NUM_TC_TBL];
+    UINT8           lcid_tbl[MAX_L2CAP_CHANNELS];   /* map LCID to tc_tbl index */
+} tMCA_TC;
+
+/* registration control block */
+typedef struct {
+    tMCA_REG        reg;                /* the parameter at register */
+    tMCA_CS         dep[MCA_NUM_DEPS];  /* the registration info for each MDEP */
+    tMCA_CTRL_CBACK *p_cback;           /* control callback function */
+} tMCA_RCB;
+
+enum
+{
+    MCA_CCB_STAT_NORM,      /* normal operation (based on ccb state) */
+    MCA_CCB_STAT_PENDING,   /* waiting for data channel  */
+    MCA_CCB_STAT_RECONN,    /* reinitiate connection after transitioning from CLOSING to IDLE state  */
+    MCA_CCB_STAT_DISC       /* MCA_DisconnectReq or MCA_Deregister is called. waiting for all associated CL and DL to detach */
+};
+typedef UINT8 tMCA_CCB_STAT;
+
+/* control channel control block */
+/* the ccbs association with the rcbs
+ * ccb[0]              ...ccb[MCA_NUM_LINKS*1-1] -> rcb[0]
+ * ccb[MCA_NUM_LINKS*1]...ccb[MCA_NUM_LINKS*2-1] -> rcb[1]
+ * ccb[MCA_NUM_LINKS*2]...ccb[MCA_NUM_LINKS*3-1] -> rcb[2]
+ */
+typedef struct {
+    tMCA_RCB        *p_rcb;             /* the associated registration control block */
+    alarm_t         *mca_ccb_timer;     /* MCA CCB timer entry */
+    tMCA_CCB_MSG    *p_tx_req;          /* Current request being sent/awaiting response */
+    tMCA_CCB_MSG    *p_rx_msg;          /* Current message received/being processed */
+    BD_ADDR         peer_addr;          /* BD address of peer */
+    UINT16          sec_mask;           /* Security mask for connections as initiator */
+    UINT16          ctrl_vpsm;          /* The virtual PSM that peer is listening for control channel */
+    UINT16          data_vpsm;          /* The virtual PSM that peer is listening for data channel. */
+    UINT16          lcid;               /* L2CAP lcid for this control channel */
+    UINT8           state;              /* The CCB state machine state */
+    BOOLEAN         cong;               /* Whether control channel is congested */
+    tMCA_CCB_STAT   status;             /* see tMCA_CCB_STAT */
+} tMCA_CCB;
+typedef void (*tMCA_CCB_ACTION)(tMCA_CCB *p_ccb, tMCA_CCB_EVT *p_data);
+
+enum
+{
+    MCA_DCB_STAT_NORM,      /* normal operation (based on dcb state) */
+    MCA_DCB_STAT_DEL,       /* MCA_Delete is called. waiting for the DL to detach */
+    MCA_DCB_STAT_DISC       /* MCA_CloseReq is called. waiting for the DL to detach */
+};
+typedef UINT8 tMCA_DCB_STAT;
+
+/* data channel control block */
+/* the dcbs association with the ccbs
+ * dcb[0]             ...dcb[MCA_NUM_MDLS*1-1] -> ccb[0]
+ * dcb[MCA_NUM_MDLS*1]...dcb[MCA_NUM_MDLS*2-1] -> ccb[1]
+ * dcb[MCA_NUM_MDLS*2]...dcb[MCA_NUM_MDLS*3-1] -> ccb[2]
+ *
+ * the dcbs association with the rcbs
+ * dcb[0]                             ...dcb[MCA_NUM_MDLS*1*MCA_NUM_LINKS*1-1] -> rcb[0]
+ * dcb[MCA_NUM_MDLS*1*MCA_NUM_LINKS*1]...dcb[MCA_NUM_MDLS*2*MCA_NUM_LINKS*2-1] -> rcb[1]
+ * dcb[MCA_NUM_MDLS*2*MCA_NUM_LINKS*2]...dcb[MCA_NUM_MDLS*3*MCA_NUM_LINKS*3-1] -> rcb[2]
+ */
+typedef struct {
+    tMCA_CCB            *p_ccb;         /* the associated control control block */
+    BT_HDR              *p_data;        /* data packet held due to L2CAP channel congestion */
+    tMCA_CS             *p_cs;          /* the associated MDEP info. p_cs->type is the mdep id(internal use) */
+    const tMCA_CHNL_CFG *p_chnl_cfg;    /* cfg params for L2CAP channel */
+    UINT16              mdl_id;         /* the MDL ID for this data channel */
+    UINT16              lcid;           /* L2CAP lcid */
+    UINT8               state;          /* The DCB state machine state */
+    BOOLEAN             cong;           /* Whether data channel is congested */
+    tMCA_DCB_STAT       status;         /* see tMCA_DCB_STAT */
+} tMCA_DCB;
+
+typedef void (*tMCA_DCB_ACTION)(tMCA_DCB *p_ccb, tMCA_DCB_EVT *p_data);
+
+/* Control block for MCA */
+typedef struct {
+    tMCA_RCB        rcb[MCA_NUM_REGS];  /* registration control block */
+    tMCA_CCB        ccb[MCA_NUM_CCBS];  /* control channel control blocks */
+    tMCA_DCB        dcb[MCA_NUM_DCBS];  /* data channel control blocks */
+    tMCA_TC         tc;                 /* transport control block */
+    UINT8           trace_level;        /* trace level */
+} tMCA_CB;
+
+/* csm functions */
+extern void mca_ccb_event(tMCA_CCB *p_ccb, UINT8 event, tMCA_CCB_EVT *p_data);
+extern tMCA_CCB *mca_ccb_by_bd(tMCA_HANDLE handle, BD_ADDR bd_addr);
+extern tMCA_CCB *mca_ccb_alloc(tMCA_HANDLE handle, BD_ADDR bd_addr);
+extern void mca_ccb_rsp_tout(tMCA_CCB *p_ccb, tMCA_CCB_EVT *p_data);
+extern void mca_ccb_dealloc(tMCA_CCB *p_ccb, tMCA_CCB_EVT *p_data);
+extern tMCA_CL mca_ccb_to_hdl(tMCA_CCB *p_ccb);
+extern tMCA_CCB *mca_ccb_by_hdl(tMCA_CL mcl);
+extern BOOLEAN mca_ccb_uses_mdl_id(tMCA_CCB *p_ccb, UINT16 mdl_id);
+
+/* cact functions */
+extern void mca_ccb_report_event(tMCA_CCB *p_ccb, UINT8 event, tMCA_CTRL *p_data);
+extern void mca_ccb_free_msg(tMCA_CCB *p_ccb, tMCA_CCB_EVT *p_data);
+extern void mca_ccb_snd_req(tMCA_CCB *p_ccb, tMCA_CCB_EVT *p_data);
+extern void mca_ccb_snd_rsp(tMCA_CCB *p_ccb, tMCA_CCB_EVT *p_data);
+extern void mca_ccb_do_disconn (tMCA_CCB *p_ccb, tMCA_CCB_EVT *p_data);
+extern void mca_ccb_cong(tMCA_CCB *p_ccb, tMCA_CCB_EVT *p_data);
+extern void mca_ccb_hdl_req(tMCA_CCB *p_ccb, tMCA_CCB_EVT *p_data);
+extern void mca_ccb_hdl_rsp(tMCA_CCB *p_ccb, tMCA_CCB_EVT *p_data);
+extern void mca_ccb_ll_open (tMCA_CCB *p_ccb, tMCA_CCB_EVT *p_data);
+extern void mca_ccb_dl_open (tMCA_CCB *p_ccb, tMCA_CCB_EVT *p_data);
+
+/* dsm functions */
+extern void mca_dcb_event(tMCA_DCB *p_dcb, UINT8 event, tMCA_DCB_EVT *p_data);
+extern tMCA_DCB *mca_dcb_alloc(tMCA_CCB*p_ccb, tMCA_DEP dep);
+extern UINT8 mca_dep_free_mdl(tMCA_CCB*p_ccb, tMCA_DEP dep);
+extern void mca_dcb_dealloc(tMCA_DCB *p_dcb, tMCA_DCB_EVT *p_data);
+extern tMCA_DL mca_dcb_to_hdl(tMCA_DCB *p_dcb);
+extern tMCA_DCB *mca_dcb_by_hdl(tMCA_DL hdl);
+extern void mca_dcb_close_by_mdl_id(tMCA_CCB*p_ccb, UINT16 mdl_id);
+
+/* dact functions */
+extern void mca_dcb_tc_open (tMCA_DCB *p_dcb, tMCA_DCB_EVT *p_data);
+extern void mca_dcb_cong (tMCA_DCB *p_dcb, tMCA_DCB_EVT *p_data);
+extern void mca_dcb_free_data (tMCA_DCB *p_dcb, tMCA_DCB_EVT *p_data);
+extern void mca_dcb_do_disconn (tMCA_DCB *p_dcb, tMCA_DCB_EVT *p_data);
+extern void mca_dcb_snd_data (tMCA_DCB *p_dcb, tMCA_DCB_EVT *p_data);
+extern void mca_dcb_hdl_data (tMCA_DCB *p_dcb, tMCA_DCB_EVT *p_data);
+
+
+/* main/utils functions */
+extern tMCA_HANDLE mca_handle_by_cpsm(UINT16 psm);
+extern tMCA_HANDLE mca_handle_by_dpsm(UINT16 psm);
+extern tMCA_TC_TBL * mca_tc_tbl_calloc(tMCA_CCB *p_ccb);
+extern tMCA_TC_TBL * mca_tc_tbl_dalloc(tMCA_DCB *p_dcb);
+extern tMCA_TC_TBL * mca_tc_tbl_by_lcid(UINT16 lcid);
+extern void mca_free_tc_tbl_by_lcid(UINT16 lcid);
+extern void mca_set_cfg_by_tbl(tL2CAP_CFG_INFO *p_cfg, tMCA_TC_TBL *p_tbl);
+extern void mca_tc_close_ind(tMCA_TC_TBL *p_tbl, UINT16 reason);
+extern void mca_tc_open_ind(tMCA_TC_TBL *p_tbl);
+extern void mca_tc_cong_ind(tMCA_TC_TBL *p_tbl, BOOLEAN is_congested);
+extern void mca_tc_data_ind(tMCA_TC_TBL *p_tbl, BT_HDR *p_buf);
+extern tMCA_RCB * mca_rcb_alloc(tMCA_REG *p_reg);
+extern void mca_rcb_dealloc(tMCA_HANDLE handle);
+extern tMCA_HANDLE mca_rcb_to_handle(tMCA_RCB *p_rcb);
+extern tMCA_RCB *mca_rcb_by_handle(tMCA_HANDLE handle);
+extern BOOLEAN mca_is_valid_dep_id(tMCA_RCB *p_rcb, tMCA_DEP dep);
+extern void mca_ccb_timer_timeout(void *data);
+extern void mca_stop_timer(tMCA_CCB *p_ccb);
+
+/* l2c functions */
+extern UINT16 mca_l2c_open_req(BD_ADDR bd_addr, UINT16 PSM, const tMCA_CHNL_CFG *p_chnl_cfg);
+
+/* callback function declarations */
+extern void mca_l2c_cconn_ind_cback(BD_ADDR bd_addr, UINT16 lcid, UINT16 psm, UINT8 id);
+extern void mca_l2c_dconn_ind_cback(BD_ADDR bd_addr, UINT16 lcid, UINT16 psm, UINT8 id);
+extern void mca_l2c_connect_cfm_cback(UINT16 lcid, UINT16 result);
+extern void mca_l2c_config_cfm_cback(UINT16 lcid, tL2CAP_CFG_INFO *p_cfg);
+extern void mca_l2c_config_ind_cback(UINT16 lcid, tL2CAP_CFG_INFO *p_cfg);
+extern void mca_l2c_disconnect_ind_cback(UINT16 lcid, BOOLEAN ack_needed);
+extern void mca_l2c_disconnect_cfm_cback(UINT16 lcid, UINT16 result);
+extern void mca_l2c_congestion_ind_cback(UINT16 lcid, BOOLEAN is_congested);
+extern void mca_l2c_data_ind_cback(UINT16 lcid, BT_HDR *p_buf);
+
+/*****************************************************************************
+** global data
+*****************************************************************************/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+/******************************************************************************
+** Main Control Block
+*******************************************************************************/
+#if MCA_DYNAMIC_MEMORY == FALSE
+extern tMCA_CB  mca_cb;
+#else
+extern tMCA_CB *mca_cb_ptr;
+#define mca_cb (*mca_cb_ptr)
+#endif
+
+/* L2CAP callback registration structure */
+extern const tL2CAP_APPL_INFO mca_l2c_int_appl;
+extern const tL2CAP_FCR_OPTS mca_l2c_fcr_opts_def;
+extern const UINT8 mca_std_msg_len[];
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* MCA_INT_H */
diff --git a/rtkbt/code/bt/stack/mcap/mca_l2c.c b/rtkbt/code/bt/stack/mcap/mca_l2c.c
new file mode 100755
index 0000000..62caf78
--- /dev/null
+++ b/rtkbt/code/bt/stack/mcap/mca_l2c.c
@@ -0,0 +1,587 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the implementation file for the MCAP at L2CAP Interface.
+ *
+ ******************************************************************************/
+#include <string.h>
+
+#include "bt_target.h"
+#include "bt_utils.h"
+#include "btm_api.h"
+#include "btm_int.h"
+#include "mca_api.h"
+#include "mca_defs.h"
+#include "mca_int.h"
+
+
+/* L2CAP callback function structure */
+const tL2CAP_APPL_INFO mca_l2c_int_appl =
+{
+    NULL,
+    mca_l2c_connect_cfm_cback,
+    NULL,
+    mca_l2c_config_ind_cback,
+    mca_l2c_config_cfm_cback,
+    mca_l2c_disconnect_ind_cback,
+    mca_l2c_disconnect_cfm_cback,
+    NULL,
+    mca_l2c_data_ind_cback,
+    mca_l2c_congestion_ind_cback,
+	NULL
+};
+
+/* Control channel eL2CAP default options */
+const tL2CAP_FCR_OPTS mca_l2c_fcr_opts_def =
+{
+    L2CAP_FCR_ERTM_MODE,            /* Mandatory for MCAP */
+    MCA_FCR_OPT_TX_WINDOW_SIZE,     /* Tx window size */
+    MCA_FCR_OPT_MAX_TX_B4_DISCNT,   /* Maximum transmissions before disconnecting */
+    MCA_FCR_OPT_RETX_TOUT,          /* Retransmission timeout (2 secs) */
+    MCA_FCR_OPT_MONITOR_TOUT,       /* Monitor timeout (12 secs) */
+    MCA_FCR_OPT_MPS_SIZE            /* MPS segment size */
+};
+
+
+/*******************************************************************************
+**
+** Function         mca_sec_check_complete_term
+**
+** Description      The function called when Security Manager finishes
+**                  verification of the service side connection
+**
+** Returns          void
+**
+*******************************************************************************/
+static void mca_sec_check_complete_term (BD_ADDR bd_addr, tBT_TRANSPORT transport, void *p_ref_data, UINT8 res)
+{
+    tMCA_TC_TBL     *p_tbl = (tMCA_TC_TBL *)p_ref_data;
+    tL2CAP_CFG_INFO cfg;
+    tL2CAP_ERTM_INFO ertm_info;
+
+    UNUSED(transport);
+
+    MCA_TRACE_DEBUG("mca_sec_check_complete_term res: %d", res);
+
+    if ( res == BTM_SUCCESS )
+    {
+        MCA_TRACE_DEBUG ("lcid:x%x id:x%x", p_tbl->lcid, p_tbl->id);
+        /* Set the FCR options: control channel mandates ERTM */
+        ertm_info.preferred_mode    = mca_l2c_fcr_opts_def.mode;
+        ertm_info.allowed_modes     = L2CAP_FCR_CHAN_OPT_ERTM;
+        ertm_info.user_rx_buf_size  = MCA_USER_RX_BUF_SIZE;
+        ertm_info.user_tx_buf_size  = MCA_USER_TX_BUF_SIZE;
+        ertm_info.fcr_rx_buf_size   = MCA_FCR_RX_BUF_SIZE;
+        ertm_info.fcr_tx_buf_size   = MCA_FCR_TX_BUF_SIZE;
+        /* Send response to the L2CAP layer. */
+        L2CA_ErtmConnectRsp (bd_addr, p_tbl->id, p_tbl->lcid, L2CAP_CONN_OK, L2CAP_CONN_OK, &ertm_info);
+
+        /* transition to configuration state */
+        p_tbl->state = MCA_TC_ST_CFG;
+
+        /* Send L2CAP config req */
+        mca_set_cfg_by_tbl (&cfg, p_tbl);
+        L2CA_ConfigReq(p_tbl->lcid, &cfg);
+    }
+    else
+    {
+        L2CA_ConnectRsp (bd_addr, p_tbl->id, p_tbl->lcid, L2CAP_CONN_SECURITY_BLOCK, L2CAP_CONN_OK);
+        mca_tc_close_ind(p_tbl, L2CAP_CONN_SECURITY_BLOCK);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         mca_sec_check_complete_orig
+**
+** Description      The function called when Security Manager finishes
+**                  verification of the service side connection
+**
+** Returns          void
+**
+*******************************************************************************/
+static void mca_sec_check_complete_orig (BD_ADDR bd_addr, tBT_TRANSPORT transport, void *p_ref_data, UINT8 res)
+{
+    tMCA_TC_TBL     *p_tbl = (tMCA_TC_TBL *)p_ref_data;
+    tL2CAP_CFG_INFO cfg;
+    UNUSED(bd_addr);
+    UNUSED(transport);
+
+    MCA_TRACE_DEBUG("mca_sec_check_complete_orig res: %d", res);
+
+    if ( res == BTM_SUCCESS )
+    {
+        /* set channel state */
+        p_tbl->state = MCA_TC_ST_CFG;
+
+        /* Send L2CAP config req */
+        mca_set_cfg_by_tbl (&cfg, p_tbl);
+        L2CA_ConfigReq(p_tbl->lcid, &cfg);
+    }
+    else
+    {
+        L2CA_DisconnectReq (p_tbl->lcid);
+        mca_tc_close_ind(p_tbl, L2CAP_CONN_SECURITY_BLOCK);
+    }
+}
+/*******************************************************************************
+**
+** Function         mca_l2c_cconn_ind_cback
+**
+** Description      This is the L2CAP connect indication callback function.
+**
+** Returns          void
+**
+*******************************************************************************/
+void mca_l2c_cconn_ind_cback(BD_ADDR bd_addr, UINT16 lcid, UINT16 psm, UINT8 id)
+{
+    tMCA_HANDLE handle = mca_handle_by_cpsm(psm);
+    tMCA_CCB    *p_ccb;
+    tMCA_TC_TBL *p_tbl = NULL;
+    UINT16      result = L2CAP_CONN_NO_RESOURCES;
+    tBTM_STATUS rc;
+    tL2CAP_ERTM_INFO ertm_info, *p_ertm_info = NULL;
+    tL2CAP_CFG_INFO  cfg;
+
+    MCA_TRACE_EVENT ("mca_l2c_cconn_ind_cback: lcid:x%x psm:x%x id:x%x", lcid, psm, id);
+
+    /* do we already have a control channel for this peer? */
+    if ((p_ccb = mca_ccb_by_bd(handle, bd_addr)) == NULL)
+    {
+        /* no, allocate ccb */
+        if ((p_ccb = mca_ccb_alloc(handle, bd_addr)) != NULL)
+        {
+            /* allocate and set up entry */
+            p_ccb->lcid     = lcid;
+            p_tbl           = mca_tc_tbl_calloc(p_ccb);
+            p_tbl->id       = id;
+            p_tbl->cfg_flags= MCA_L2C_CFG_CONN_ACP;
+            /* proceed with connection */
+            /* Check the security */
+            rc = btm_sec_mx_access_request (bd_addr, psm, FALSE, BTM_SEC_PROTO_MCA, 0,
+                                            &mca_sec_check_complete_term, p_tbl);
+            if (rc == BTM_CMD_STARTED)
+            {
+                /* Set the FCR options: control channel mandates ERTM */
+                ertm_info.preferred_mode    = mca_l2c_fcr_opts_def.mode;
+                ertm_info.allowed_modes     = L2CAP_FCR_CHAN_OPT_ERTM;
+                ertm_info.user_rx_buf_size  = MCA_USER_RX_BUF_SIZE;
+                ertm_info.user_tx_buf_size  = MCA_USER_TX_BUF_SIZE;
+                ertm_info.fcr_rx_buf_size   = MCA_FCR_RX_BUF_SIZE;
+                ertm_info.fcr_tx_buf_size   = MCA_FCR_TX_BUF_SIZE;
+                p_ertm_info = &ertm_info;
+                result = L2CAP_CONN_PENDING;
+            }
+            else
+                result = L2CAP_CONN_OK;
+        }
+
+        /*  deal with simultaneous control channel connect case */
+    }
+    /* else reject their connection */
+
+    if (!p_tbl || (p_tbl->state != MCA_TC_ST_CFG))
+    {
+        /* Send L2CAP connect rsp */
+        L2CA_ErtmConnectRsp (bd_addr, id, lcid, result, L2CAP_CONN_OK, p_ertm_info);
+
+        /* if result ok, proceed with connection and send L2CAP
+           config req */
+        if (result == L2CAP_CONN_OK)
+        {
+            /* set channel state */
+            p_tbl->state = MCA_TC_ST_CFG;
+
+            /* Send L2CAP config req */
+            mca_set_cfg_by_tbl (&cfg, p_tbl);
+            L2CA_ConfigReq(p_tbl->lcid, &cfg);
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         mca_l2c_dconn_ind_cback
+**
+** Description      This is the L2CAP connect indication callback function.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void mca_l2c_dconn_ind_cback(BD_ADDR bd_addr, UINT16 lcid, UINT16 psm, UINT8 id)
+{
+    tMCA_HANDLE handle = mca_handle_by_dpsm(psm);
+    tMCA_CCB    *p_ccb;
+    tMCA_DCB       *p_dcb;
+    tMCA_TC_TBL    *p_tbl = NULL;
+    UINT16          result;
+    tL2CAP_CFG_INFO cfg;
+    tL2CAP_ERTM_INFO *p_ertm_info = NULL, ertm_info;
+    const tMCA_CHNL_CFG   *p_chnl_cfg;
+
+    MCA_TRACE_EVENT ("mca_l2c_dconn_ind_cback: lcid:x%x psm:x%x ", lcid, psm);
+
+    if (((p_ccb = mca_ccb_by_bd(handle, bd_addr)) != NULL) && /* find the CCB */
+        (p_ccb->status == MCA_CCB_STAT_PENDING) &&  /* this CCB is expecting a MDL */
+        (p_ccb->p_tx_req && (p_dcb = mca_dcb_by_hdl(p_ccb->p_tx_req->dcb_idx)) != NULL))
+    {
+        /* found the associated dcb in listening mode */
+        /* proceed with connection */
+        p_dcb->lcid     = lcid;
+        p_tbl           = mca_tc_tbl_dalloc(p_dcb);
+        p_tbl->id       = id;
+        p_tbl->cfg_flags= MCA_L2C_CFG_CONN_ACP;
+        p_chnl_cfg = p_dcb->p_chnl_cfg;
+        /* assume that control channel has verified the security requirement */
+        /* Set the FCR options: control channel mandates ERTM */
+        ertm_info.preferred_mode    = p_chnl_cfg->fcr_opt.mode;
+        ertm_info.allowed_modes     = (1 << p_chnl_cfg->fcr_opt.mode);
+        ertm_info.user_rx_buf_size  = p_chnl_cfg->user_rx_buf_size;
+        ertm_info.user_tx_buf_size  = p_chnl_cfg->user_tx_buf_size;
+        ertm_info.fcr_rx_buf_size   = p_chnl_cfg->fcr_rx_buf_size;
+        ertm_info.fcr_tx_buf_size   = p_chnl_cfg->fcr_tx_buf_size;
+        p_ertm_info = &ertm_info;
+        result = L2CAP_CONN_OK;
+    }
+    else
+    {
+        /* else we're not listening for traffic channel; reject
+         * (this error code is specified by MCAP spec) */
+        result = L2CAP_CONN_NO_RESOURCES;
+    }
+
+    /* Send L2CAP connect rsp */
+    L2CA_ErtmConnectRsp (bd_addr, id, lcid, result, result, p_ertm_info);
+
+    /* if result ok, proceed with connection */
+    if (result == L2CAP_CONN_OK)
+    {
+        /* transition to configuration state */
+        p_tbl->state = MCA_TC_ST_CFG;
+
+        /* Send L2CAP config req */
+        mca_set_cfg_by_tbl (&cfg, p_tbl);
+        L2CA_ConfigReq(lcid, &cfg);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         mca_l2c_connect_cfm_cback
+**
+** Description      This is the L2CAP connect confirm callback function.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void mca_l2c_connect_cfm_cback(UINT16 lcid, UINT16 result)
+{
+    tMCA_TC_TBL    *p_tbl;
+    tL2CAP_CFG_INFO cfg;
+    tMCA_CCB *p_ccb;
+
+    MCA_TRACE_DEBUG("mca_l2c_connect_cfm_cback lcid: x%x, result: %d",
+                     lcid, result);
+    /* look up info for this channel */
+    if ((p_tbl = mca_tc_tbl_by_lcid(lcid)) != NULL)
+    {
+        MCA_TRACE_DEBUG("p_tbl state: %d, tcid: %d", p_tbl->state, p_tbl->tcid);
+        /* if in correct state */
+        if (p_tbl->state == MCA_TC_ST_CONN)
+        {
+            /* if result successful */
+            if (result == L2CAP_CONN_OK)
+            {
+                if (p_tbl->tcid != 0)
+                {
+                    /* set channel state */
+                    p_tbl->state = MCA_TC_ST_CFG;
+
+                    /* Send L2CAP config req */
+                    mca_set_cfg_by_tbl (&cfg, p_tbl);
+                    L2CA_ConfigReq(lcid, &cfg);
+                }
+                else
+                {
+                    p_ccb = mca_ccb_by_hdl((tMCA_CL)p_tbl->cb_idx);
+                    if (p_ccb == NULL)
+                    {
+                        result = L2CAP_CONN_NO_RESOURCES;
+                    }
+                    else
+                    {
+                        /* set channel state */
+                        p_tbl->state    = MCA_TC_ST_SEC_INT;
+                        p_tbl->lcid     = lcid;
+                        p_tbl->cfg_flags= MCA_L2C_CFG_CONN_INT;
+
+                        /* Check the security */
+                        btm_sec_mx_access_request (p_ccb->peer_addr, p_ccb->ctrl_vpsm,
+                                                   TRUE, BTM_SEC_PROTO_MCA,
+                                                   p_tbl->tcid,
+                                                   &mca_sec_check_complete_orig, p_tbl);
+                    }
+                }
+            }
+
+            /* failure; notify adaption that channel closed */
+            if (result != L2CAP_CONN_OK)
+            {
+                p_tbl->cfg_flags |= MCA_L2C_CFG_DISCN_INT;
+                mca_tc_close_ind(p_tbl, result);
+            }
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         mca_l2c_config_cfm_cback
+**
+** Description      This is the L2CAP config confirm callback function.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void mca_l2c_config_cfm_cback(UINT16 lcid, tL2CAP_CFG_INFO *p_cfg)
+{
+    tMCA_TC_TBL    *p_tbl;
+
+    /* look up info for this channel */
+    if ((p_tbl = mca_tc_tbl_by_lcid(lcid)) != NULL)
+    {
+        /* if in correct state */
+        if (p_tbl->state == MCA_TC_ST_CFG)
+        {
+            /* if result successful */
+            if (p_cfg->result == L2CAP_CONN_OK)
+            {
+                /* update cfg_flags */
+                p_tbl->cfg_flags |= MCA_L2C_CFG_CFM_DONE;
+
+                /* if configuration complete */
+                if (p_tbl->cfg_flags & MCA_L2C_CFG_IND_DONE)
+                {
+                    mca_tc_open_ind(p_tbl);
+                }
+            }
+            /* else failure */
+            else
+            {
+                /* Send L2CAP disconnect req */
+                L2CA_DisconnectReq(lcid);
+            }
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         mca_l2c_config_ind_cback
+**
+** Description      This is the L2CAP config indication callback function.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void mca_l2c_config_ind_cback(UINT16 lcid, tL2CAP_CFG_INFO *p_cfg)
+{
+    tMCA_TC_TBL    *p_tbl;
+    UINT16          result = L2CAP_CFG_OK;
+
+    /* look up info for this channel */
+    if ((p_tbl = mca_tc_tbl_by_lcid(lcid)) != NULL)
+    {
+        /* store the mtu in tbl */
+        if (p_cfg->mtu_present)
+        {
+            p_tbl->peer_mtu = p_cfg->mtu;
+            if (p_tbl->peer_mtu < MCA_MIN_MTU)
+            {
+                result = L2CAP_CFG_UNACCEPTABLE_PARAMS;
+            }
+        }
+        else
+        {
+            p_tbl->peer_mtu = L2CAP_DEFAULT_MTU;
+        }
+        MCA_TRACE_DEBUG("peer_mtu: %d, lcid: x%x mtu_present:%d",p_tbl->peer_mtu, lcid, p_cfg->mtu_present);
+
+        /* send L2CAP configure response */
+        memset(p_cfg, 0, sizeof(tL2CAP_CFG_INFO));
+        p_cfg->result = result;
+        L2CA_ConfigRsp(lcid, p_cfg);
+
+        /* if first config ind */
+        if ((p_tbl->cfg_flags & MCA_L2C_CFG_IND_DONE) == 0)
+        {
+            /* update cfg_flags */
+            p_tbl->cfg_flags |= MCA_L2C_CFG_IND_DONE;
+
+            /* if configuration complete */
+            if (p_tbl->cfg_flags & MCA_L2C_CFG_CFM_DONE)
+            {
+                mca_tc_open_ind(p_tbl);
+            }
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         mca_l2c_disconnect_ind_cback
+**
+** Description      This is the L2CAP disconnect indication callback function.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void mca_l2c_disconnect_ind_cback(UINT16 lcid, BOOLEAN ack_needed)
+{
+    tMCA_TC_TBL    *p_tbl;
+    UINT16         reason = L2CAP_DISC_TIMEOUT;
+
+    MCA_TRACE_DEBUG("mca_l2c_disconnect_ind_cback lcid: %d, ack_needed: %d",
+                     lcid, ack_needed);
+    /* look up info for this channel */
+    if ((p_tbl = mca_tc_tbl_by_lcid(lcid)) != NULL)
+    {
+        if (ack_needed)
+        {
+            /* send L2CAP disconnect response */
+            L2CA_DisconnectRsp(lcid);
+        }
+
+        p_tbl->cfg_flags = MCA_L2C_CFG_DISCN_ACP;
+        if (ack_needed)
+            reason = L2CAP_DISC_OK;
+        mca_tc_close_ind(p_tbl, reason);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         mca_l2c_disconnect_cfm_cback
+**
+** Description      This is the L2CAP disconnect confirm callback function.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void mca_l2c_disconnect_cfm_cback(UINT16 lcid, UINT16 result)
+{
+    tMCA_TC_TBL    *p_tbl;
+
+    MCA_TRACE_DEBUG("mca_l2c_disconnect_cfm_cback lcid: x%x, result: %d",
+                     lcid, result);
+    /* look up info for this channel */
+    if ((p_tbl = mca_tc_tbl_by_lcid(lcid)) != NULL)
+    {
+        p_tbl->cfg_flags = MCA_L2C_CFG_DISCN_INT;
+        mca_tc_close_ind(p_tbl, result);
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         mca_l2c_congestion_ind_cback
+**
+** Description      This is the L2CAP congestion indication callback function.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void mca_l2c_congestion_ind_cback(UINT16 lcid, BOOLEAN is_congested)
+{
+    tMCA_TC_TBL    *p_tbl;
+
+    /* look up info for this channel */
+    if ((p_tbl = mca_tc_tbl_by_lcid(lcid)) != NULL)
+    {
+        mca_tc_cong_ind(p_tbl, is_congested);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         mca_l2c_data_ind_cback
+**
+** Description      This is the L2CAP data indication callback function.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void mca_l2c_data_ind_cback(UINT16 lcid, BT_HDR *p_buf)
+{
+    tMCA_TC_TBL    *p_tbl;
+
+    /* look up info for this channel */
+    if ((p_tbl = mca_tc_tbl_by_lcid(lcid)) != NULL)
+    {
+        mca_tc_data_ind(p_tbl, p_buf);
+    }
+    else /* prevent buffer leak */
+        osi_free(p_buf);
+}
+
+
+/*******************************************************************************
+**
+** Function         mca_l2c_open_req
+**
+** Description      This function calls L2CA_ConnectReq() to initiate a L2CAP channel.
+**
+** Returns          void.
+**
+*******************************************************************************/
+UINT16 mca_l2c_open_req(BD_ADDR bd_addr, UINT16 psm, const tMCA_CHNL_CFG *p_chnl_cfg)
+{
+    tL2CAP_ERTM_INFO ertm_info;
+
+    if (p_chnl_cfg)
+    {
+        ertm_info.preferred_mode    = p_chnl_cfg->fcr_opt.mode;
+        ertm_info.allowed_modes     = (1 << p_chnl_cfg->fcr_opt.mode);
+        ertm_info.user_rx_buf_size  = p_chnl_cfg->user_rx_buf_size;
+        ertm_info.user_tx_buf_size  = p_chnl_cfg->user_tx_buf_size;
+        ertm_info.fcr_rx_buf_size   = p_chnl_cfg->fcr_rx_buf_size;
+        ertm_info.fcr_tx_buf_size   = p_chnl_cfg->fcr_tx_buf_size;
+    }
+    else
+    {
+        ertm_info.preferred_mode    = mca_l2c_fcr_opts_def.mode;
+        ertm_info.allowed_modes     = L2CAP_FCR_CHAN_OPT_ERTM;
+        ertm_info.user_rx_buf_size  = MCA_USER_RX_BUF_SIZE;
+        ertm_info.user_tx_buf_size  = MCA_USER_TX_BUF_SIZE;
+        ertm_info.fcr_rx_buf_size   = MCA_FCR_RX_BUF_SIZE;
+        ertm_info.fcr_tx_buf_size   = MCA_FCR_TX_BUF_SIZE;
+    }
+    return L2CA_ErtmConnectReq (psm, bd_addr, &ertm_info);
+}
+
diff --git a/rtkbt/code/bt/stack/mcap/mca_main.c b/rtkbt/code/bt/stack/mcap/mca_main.c
new file mode 100755
index 0000000..d1591b3
--- /dev/null
+++ b/rtkbt/code/bt/stack/mcap/mca_main.c
@@ -0,0 +1,631 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This is the implementation file for the MCAP Main Control Block and
+ *  Utility functions.
+ *
+ ******************************************************************************/
+#include <assert.h>
+#include <string.h>
+
+#include "bt_target.h"
+#include "bt_common.h"
+#include "mca_api.h"
+#include "mca_defs.h"
+#include "mca_int.h"
+#include "l2c_api.h"
+
+/* Main Control block for MCA */
+#if MCA_DYNAMIC_MEMORY == FALSE
+tMCA_CB mca_cb;
+#endif
+
+/*****************************************************************************
+** constants
+*****************************************************************************/
+
+/* table of standard opcode message size */
+const UINT8 mca_std_msg_len[MCA_NUM_STANDARD_OPCODE] = {
+    4,          /* MCA_OP_ERROR_RSP         */
+    5,          /* MCA_OP_MDL_CREATE_REQ    */
+    5,          /* MCA_OP_MDL_CREATE_RSP    */
+    3,          /* MCA_OP_MDL_RECONNECT_REQ */
+    4,          /* MCA_OP_MDL_RECONNECT_RSP */
+    3,          /* MCA_OP_MDL_ABORT_REQ     */
+    4,          /* MCA_OP_MDL_ABORT_RSP     */
+    3,          /* MCA_OP_MDL_DELETE_REQ    */
+    4           /* MCA_OP_MDL_DELETE_RSP    */
+};
+
+
+/*******************************************************************************
+**
+** Function         mca_handle_by_cpsm
+**
+** Description      This function returns the handle for the given control
+**                  channel PSM. 0, if not found.
+**
+** Returns          the MCA handle.
+**
+*******************************************************************************/
+tMCA_HANDLE mca_handle_by_cpsm(UINT16 psm)
+{
+    int     i;
+    tMCA_HANDLE handle = 0;
+    tMCA_RCB *p_rcb = &mca_cb.rcb[0];
+
+    for (i=0; i<MCA_NUM_REGS; i++, p_rcb++)
+    {
+        if (p_rcb->p_cback && p_rcb->reg.ctrl_psm == psm)
+        {
+            handle = i+1;
+            break;
+        }
+    }
+    return handle;
+}
+
+/*******************************************************************************
+**
+** Function         mca_handle_by_dpsm
+**
+** Description      This function returns the handle for the given data
+**                  channel PSM. 0, if not found.
+**
+** Returns          the MCA handle.
+**
+*******************************************************************************/
+tMCA_HANDLE mca_handle_by_dpsm(UINT16 psm)
+{
+    int     i;
+    tMCA_HANDLE handle = 0;
+    tMCA_RCB *p_rcb = &mca_cb.rcb[0];
+
+    for (i=0; i<MCA_NUM_REGS; i++, p_rcb++)
+    {
+        if (p_rcb->p_cback && p_rcb->reg.data_psm == psm)
+        {
+            handle = i+1;
+            break;
+        }
+    }
+    return handle;
+}
+
+/*******************************************************************************
+**
+** Function         mca_tc_tbl_calloc
+**
+** Description      This function allocates a transport table for the given
+**                  control channel.
+**
+** Returns          The tranport table.
+**
+*******************************************************************************/
+tMCA_TC_TBL * mca_tc_tbl_calloc(tMCA_CCB *p_ccb)
+{
+    tMCA_TC_TBL *p_tbl = mca_cb.tc.tc_tbl;
+    int             i;
+
+    /* find next free entry in tc table */
+    for (i = 0; i < MCA_NUM_TC_TBL; i++, p_tbl++)
+    {
+        if (p_tbl->state == MCA_TC_ST_UNUSED)
+        {
+            break;
+        }
+    }
+
+    /* sanity check */
+    assert(i != MCA_NUM_TC_TBL);
+
+    /* initialize entry */
+    p_tbl->peer_mtu = L2CAP_DEFAULT_MTU;
+    p_tbl->cfg_flags= 0;
+    p_tbl->cb_idx   = mca_ccb_to_hdl(p_ccb);
+    p_tbl->tcid     = MCA_CTRL_TCID;
+    p_tbl->my_mtu   = MCA_CTRL_MTU;
+    p_tbl->state    = MCA_TC_ST_IDLE;
+    p_tbl->lcid     = p_ccb->lcid;
+    mca_cb.tc.lcid_tbl[p_ccb->lcid - L2CAP_BASE_APPL_CID] = i;
+
+    MCA_TRACE_DEBUG("%s() - cb_idx: %d", __func__, p_tbl->cb_idx);
+    return p_tbl;
+}
+
+/*******************************************************************************
+**
+** Function         mca_tc_tbl_dalloc
+**
+** Description      This function allocates a transport table for the given
+**                  data channel.
+**
+** Returns          The tranport table.
+**
+*******************************************************************************/
+tMCA_TC_TBL * mca_tc_tbl_dalloc(tMCA_DCB *p_dcb)
+{
+    tMCA_TC_TBL *p_tbl = mca_cb.tc.tc_tbl;
+    int             i;
+
+    /* find next free entry in tc table */
+    for (i = 0; i < MCA_NUM_TC_TBL; i++, p_tbl++)
+    {
+        if (p_tbl->state == MCA_TC_ST_UNUSED)
+        {
+            break;
+        }
+    }
+
+    /* sanity check */
+    assert(i != MCA_NUM_TC_TBL);
+
+    /* initialize entry */
+    p_tbl->peer_mtu = L2CAP_DEFAULT_MTU;
+    p_tbl->cfg_flags= 0;
+    p_tbl->cb_idx   = mca_dcb_to_hdl(p_dcb);
+    p_tbl->tcid     = p_dcb->p_cs->type + 1;
+    p_tbl->my_mtu   = p_dcb->p_chnl_cfg->data_mtu;
+    p_tbl->state    = MCA_TC_ST_IDLE;
+    p_tbl->lcid     = p_dcb->lcid;
+    mca_cb.tc.lcid_tbl[p_dcb->lcid - L2CAP_BASE_APPL_CID] = i;
+
+    MCA_TRACE_DEBUG("%s() - tcid: %d, cb_idx: %d", __func__, p_tbl->tcid, p_tbl->cb_idx);
+    return p_tbl;
+}
+
+/*******************************************************************************
+**
+** Function         mca_tc_tbl_by_lcid
+**
+** Description      Find the transport channel table entry by LCID.
+**
+**
+** Returns          The tranport table.
+**
+*******************************************************************************/
+tMCA_TC_TBL *mca_tc_tbl_by_lcid(UINT16 lcid)
+{
+    UINT8 idx;
+
+    if (lcid)
+    {
+        idx = mca_cb.tc.lcid_tbl[lcid - L2CAP_BASE_APPL_CID];
+
+        if (idx < MCA_NUM_TC_TBL)
+        {
+            return &mca_cb.tc.tc_tbl[idx];
+        }
+    }
+    return NULL;
+}
+
+/*******************************************************************************
+**
+** Function         mca_free_tc_tbl_by_lcid
+**
+** Description      Find the  transport table entry by LCID
+**                  and free the tc_tbl
+**
+** Returns          void.
+**
+*******************************************************************************/
+void mca_free_tc_tbl_by_lcid(UINT16 lcid)
+{
+    UINT8 idx;
+
+    if (lcid)
+    {
+        idx = mca_cb.tc.lcid_tbl[lcid - L2CAP_BASE_APPL_CID];
+
+        if (idx < MCA_NUM_TC_TBL)
+        {
+            mca_cb.tc.tc_tbl[idx].state = MCA_TC_ST_UNUSED;
+        }
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         mca_set_cfg_by_tbl
+**
+** Description      Set the L2CAP configuration information
+**
+** Returns          none.
+**
+*******************************************************************************/
+void mca_set_cfg_by_tbl(tL2CAP_CFG_INFO *p_cfg, tMCA_TC_TBL *p_tbl)
+{
+    tMCA_DCB   *p_dcb;
+    const tL2CAP_FCR_OPTS *p_opt;
+    tMCA_FCS_OPT    fcs = MCA_FCS_NONE;
+
+    if (p_tbl->tcid == MCA_CTRL_TCID)
+    {
+        p_opt = &mca_l2c_fcr_opts_def;
+    }
+    else
+    {
+        p_dcb = mca_dcb_by_hdl(p_tbl->cb_idx);
+        if (p_dcb)
+        {
+            p_opt = &p_dcb->p_chnl_cfg->fcr_opt;
+            fcs   = p_dcb->p_chnl_cfg->fcs;
+        }
+    }
+    memset(p_cfg, 0, sizeof(tL2CAP_CFG_INFO));
+    p_cfg->mtu_present = TRUE;
+    p_cfg->mtu = p_tbl->my_mtu;
+    p_cfg->fcr_present = TRUE;
+    memcpy(&p_cfg->fcr, p_opt, sizeof (tL2CAP_FCR_OPTS));
+    if (fcs & MCA_FCS_PRESNT_MASK)
+    {
+        p_cfg->fcs_present = TRUE;
+        p_cfg->fcs = (fcs & MCA_FCS_USE_MASK);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         mca_tc_close_ind
+**
+** Description      This function is called by the L2CAP interface when the
+**                  L2CAP channel is closed.  It looks up the CCB or DCB for
+**                  the channel and sends it a close event.  The reason
+**                  parameter is the same value passed by the L2CAP
+**                  callback function.
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void mca_tc_close_ind(tMCA_TC_TBL *p_tbl, UINT16 reason)
+{
+    tMCA_CCB   *p_ccb;
+    tMCA_DCB   *p_dcb;
+    tMCA_CLOSE  close;
+
+    close.param  = MCA_ACP;
+    close.reason = reason;
+    close.lcid   = p_tbl->lcid;
+
+    MCA_TRACE_DEBUG("%s() - tcid: %d, cb_idx:%d, old: %d", __func__, 
+                     p_tbl->tcid, p_tbl->cb_idx, p_tbl->state);
+
+    /* Check if the transport channel is in use */
+    if (p_tbl->state == MCA_TC_ST_UNUSED)
+        return;
+
+    /* clear mca_tc_tbl entry */
+    if (p_tbl->cfg_flags&MCA_L2C_CFG_DISCN_INT)
+        close.param = MCA_INT;
+    p_tbl->cfg_flags = 0;
+    p_tbl->peer_mtu = L2CAP_DEFAULT_MTU;
+
+    /* if control channel, notify ccb that channel close */
+    if (p_tbl->tcid == MCA_CTRL_TCID)
+    {
+        p_ccb = mca_ccb_by_hdl((tMCA_CL)p_tbl->cb_idx);
+        mca_ccb_event(p_ccb, MCA_CCB_LL_CLOSE_EVT, (tMCA_CCB_EVT *)&close);
+    }
+    /* notify dcb that channel close */
+    else
+    {
+        /* look up dcb  */
+        p_dcb = mca_dcb_by_hdl(p_tbl->cb_idx);
+        if (p_dcb != NULL)
+        {
+            mca_dcb_event(p_dcb, MCA_DCB_TC_CLOSE_EVT, (tMCA_DCB_EVT *) &close);
+        }
+    }
+    p_tbl->state = MCA_TC_ST_UNUSED;
+}
+
+/*******************************************************************************
+**
+** Function         mca_tc_open_ind
+**
+** Description      This function is called by the L2CAP interface when
+**                  the L2CAP channel is opened.  It looks up the CCB or DCB
+**                  for the channel and sends it an open event.
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void mca_tc_open_ind(tMCA_TC_TBL *p_tbl)
+{
+    tMCA_CCB   *p_ccb;
+    tMCA_DCB   *p_dcb;
+    tMCA_OPEN  open;
+
+    MCA_TRACE_DEBUG("mca_tc_open_ind tcid: %d, cb_idx: %d", p_tbl->tcid, p_tbl->cb_idx);
+    p_tbl->state = MCA_TC_ST_OPEN;
+
+    open.peer_mtu = p_tbl->peer_mtu;
+    open.lcid = p_tbl->lcid;
+    /* use param to indicate the role of connection.
+     * MCA_ACP, if ACP */
+    open.param = MCA_INT;
+    if (p_tbl->cfg_flags & MCA_L2C_CFG_CONN_ACP)
+    {
+        open.param = MCA_ACP;
+    }
+
+    /* if control channel, notify ccb that channel open */
+    if (p_tbl->tcid == MCA_CTRL_TCID)
+    {
+        p_ccb = mca_ccb_by_hdl((tMCA_CL)p_tbl->cb_idx);
+
+        mca_ccb_event(p_ccb, MCA_CCB_LL_OPEN_EVT, (tMCA_CCB_EVT *)&open);
+    }
+    /* must be data channel, notify dcb that channel open */
+    else
+    {
+        /* look up dcb */
+        p_dcb = mca_dcb_by_hdl(p_tbl->cb_idx);
+
+        /* put lcid in event data */
+        if (p_dcb != NULL)
+        {
+            mca_dcb_event(p_dcb, MCA_DCB_TC_OPEN_EVT, (tMCA_DCB_EVT *) &open);
+        }
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         mca_tc_cong_ind
+**
+** Description      This function is called by the L2CAP interface layer when
+**                  L2CAP calls the congestion callback.  It looks up the CCB
+**                  or DCB for the channel and sends it a congestion event.
+**                  The is_congested parameter is the same value passed by
+**                  the L2CAP callback function.
+**
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void mca_tc_cong_ind(tMCA_TC_TBL *p_tbl, BOOLEAN is_congested)
+{
+    tMCA_CCB   *p_ccb;
+    tMCA_DCB   *p_dcb;
+
+    MCA_TRACE_DEBUG("%s() - tcid: %d, cb_idx: %d", __func__, p_tbl->tcid, p_tbl->cb_idx);
+
+    /* if control channel, notify ccb of congestion */
+    if (p_tbl->tcid == MCA_CTRL_TCID)
+    {
+        p_ccb = mca_ccb_by_hdl((tMCA_CL)p_tbl->cb_idx);
+        mca_ccb_event(p_ccb, MCA_CCB_LL_CONG_EVT, (tMCA_CCB_EVT *) &is_congested);
+    }
+    /* notify dcb that channel open */
+    else
+    {
+        /* look up dcb by cb_idx */
+        p_dcb = mca_dcb_by_hdl(p_tbl->cb_idx);
+        if (p_dcb != NULL)
+        {
+            mca_dcb_event(p_dcb, MCA_DCB_TC_CONG_EVT, (tMCA_DCB_EVT *) &is_congested);
+        }
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         mca_tc_data_ind
+**
+** Description      This function is called by the L2CAP interface layer when
+**                  incoming data is received from L2CAP.  It looks up the CCB
+**                  or DCB for the channel and routes the data accordingly.
+**
+** Returns          Nothing.
+**
+*******************************************************************************/
+void mca_tc_data_ind(tMCA_TC_TBL *p_tbl, BT_HDR *p_buf)
+{
+    tMCA_CCB   *p_ccb;
+    tMCA_DCB   *p_dcb;
+    UINT8       event = MCA_CCB_MSG_RSP_EVT;
+    UINT8       *p;
+    UINT8       rej_rsp_code = MCA_RSP_SUCCESS;
+
+    MCA_TRACE_DEBUG("%s() - tcid: %d, cb_idx: %d", __func__, p_tbl->tcid, p_tbl->cb_idx);
+
+    /* if control channel, handle control message */
+    if (p_tbl->tcid == MCA_CTRL_TCID)
+    {
+        p_ccb = mca_ccb_by_hdl((tMCA_CL)p_tbl->cb_idx);
+        if (p_ccb)
+        {
+            p = (UINT8*)(p_buf+1) + p_buf->offset;
+            /* all the request opcode has bit 0 set. response code has bit 0 clear */
+            if ((*p) & 0x01)
+                event = MCA_CCB_MSG_REQ_EVT;
+
+            if (*p < MCA_NUM_STANDARD_OPCODE)
+            {
+                if (p_buf->len != mca_std_msg_len[*p])
+                {
+                    MCA_TRACE_ERROR ("$s() - opcode: %d required len: %d, got len: %d"
+                      , __func__, *p, mca_std_msg_len[*p], p_buf->len);
+                    rej_rsp_code = MCA_RSP_BAD_PARAM;
+                }
+            }
+            else if ((*p >= MCA_FIRST_SYNC_OP) && (*p <= MCA_LAST_SYNC_OP))
+            {
+                MCA_TRACE_ERROR ("%s() - unsupported SYNC opcode: %d len:%d"
+                    , __func__, *p, p_buf->len);
+                /* reject unsupported request */
+                rej_rsp_code = MCA_RSP_NO_SUPPORT;
+            }
+            else
+            {
+                MCA_TRACE_ERROR ("%s() - bad opcode: %d len:%d", __func__, *p, p_buf->len);
+                /* reject unsupported request */
+                rej_rsp_code = MCA_RSP_BAD_OPCODE;
+            }
+
+            p_buf->layer_specific = rej_rsp_code;
+            /* forward the request/response to state machine */
+            mca_ccb_event(p_ccb, event, (tMCA_CCB_EVT *) p_buf);
+        } /* got a valid ccb */
+        else
+            osi_free(p_buf);
+    }
+    /* else send event to dcb */
+    else
+    {
+        p_dcb = mca_dcb_by_hdl(p_tbl->cb_idx);
+        if (p_dcb != NULL)
+        {
+            mca_dcb_event(p_dcb, MCA_DCB_TC_DATA_EVT, (tMCA_DCB_EVT *) p_buf);
+        }
+        else
+            osi_free(p_buf);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         mca_rcb_alloc
+**
+** Description      This function allocates a registration control block.
+**                  If no free RCB is available, it returns NULL.
+**
+** Returns          tMCA_RCB *
+**
+*******************************************************************************/
+tMCA_RCB * mca_rcb_alloc(tMCA_REG *p_reg)
+{
+    int     i;
+    tMCA_RCB *p_rcb = NULL;
+
+    for (i=0; i<MCA_NUM_REGS; i++)
+    {
+        if (mca_cb.rcb[i].p_cback == NULL)
+        {
+            p_rcb = &mca_cb.rcb[i];
+            memcpy (&p_rcb->reg, p_reg, sizeof(tMCA_REG));
+            break;
+        }
+    }
+    return p_rcb;
+}
+
+/*******************************************************************************
+**
+** Function         mca_rcb_dealloc
+**
+** Description      This function deallocates the RCB with the given handle.
+**
+** Returns          void.
+**
+*******************************************************************************/
+void mca_rcb_dealloc(tMCA_HANDLE handle)
+{
+    int      i;
+    BOOLEAN  done = TRUE;
+    tMCA_RCB *p_rcb;
+    tMCA_CCB *p_ccb;
+
+    if (handle && (handle<=MCA_NUM_REGS))
+    {
+        handle--;
+        p_rcb = &mca_cb.rcb[handle];
+        if (p_rcb->p_cback)
+        {
+            p_ccb = &mca_cb.ccb[handle*MCA_NUM_LINKS];
+            /* check if all associated CCB are disconnected */
+            for (i=0; i<MCA_NUM_LINKS; i++, p_ccb++)
+            {
+                if (p_ccb->p_rcb)
+                {
+                    done = FALSE;
+                    mca_ccb_event (p_ccb, MCA_CCB_API_DISCONNECT_EVT, NULL);
+                }
+            }
+
+            if (done)
+            {
+                memset (p_rcb, 0, sizeof(tMCA_RCB));
+                MCA_TRACE_DEBUG("%s() - reset MCA_RCB index=%d", __func__, handle);
+            }
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         mca_rcb_to_handle
+**
+** Description      This function converts a pointer to an RCB to
+**                  a handle (tMCA_HANDLE).  It returns the handle.
+**
+** Returns          void.
+**
+*******************************************************************************/
+tMCA_HANDLE mca_rcb_to_handle(tMCA_RCB *p_rcb)
+{
+    return(UINT8) (p_rcb - mca_cb.rcb + 1);
+}
+
+/*******************************************************************************
+**
+** Function         mca_rcb_by_handle
+**
+** Description      This function finds the RCB for a handle (tMCA_HANDLE).
+**                  It returns a pointer to the RCB.  If no RCB matches the
+**                  handle it returns NULL.
+**
+** Returns          tMCA_RCB *
+**
+*******************************************************************************/
+tMCA_RCB *mca_rcb_by_handle(tMCA_HANDLE handle)
+{
+    tMCA_RCB *p_rcb = NULL;
+
+    if (handle && (handle<=MCA_NUM_REGS) && mca_cb.rcb[handle-1].p_cback)
+    {
+        p_rcb = &mca_cb.rcb[handle-1];
+    }
+    return p_rcb;
+}
+
+/*******************************************************************************
+**
+** Function         mca_is_valid_dep_id
+**
+** Description      This function checks if the given dep_id is valid.
+**
+** Returns          TRUE, if this is a valid local dep_id
+**
+*******************************************************************************/
+BOOLEAN mca_is_valid_dep_id(tMCA_RCB *p_rcb, tMCA_DEP dep)
+{
+    BOOLEAN valid = FALSE;
+    if (dep < MCA_NUM_DEPS && p_rcb->dep[dep].p_data_cback)
+    {
+        valid = TRUE;
+    }
+    return valid;
+}
diff --git a/rtkbt/code/bt/stack/pan/pan_api.c b/rtkbt/code/bt/stack/pan/pan_api.c
new file mode 100755
index 0000000..a20ed57
--- /dev/null
+++ b/rtkbt/code/bt/stack/pan/pan_api.c
@@ -0,0 +1,768 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/*****************************************************************************
+ *
+ *  This file contains main functions to support PAN profile
+ *  commands and events.
+ *
+ *****************************************************************************/
+
+#include <string.h>
+#include "bt_common.h"
+#include "bt_types.h"
+#include "bnep_api.h"
+#include "pan_api.h"
+#include "pan_int.h"
+#include "sdp_api.h"
+#include "sdpdefs.h"
+#include "l2c_api.h"
+#include "hcidefs.h"
+#include "btm_api.h"
+#include "bta_sys.h"
+
+
+/*******************************************************************************
+**
+** Function         PAN_Register
+**
+** Description      This function is called by the application to register
+**                  its callbacks with PAN profile. The application then
+**                  should set the PAN role explicitly.
+**
+** Parameters:      p_register - contains all callback function pointers
+**
+**
+** Returns          none
+**
+*******************************************************************************/
+void PAN_Register (tPAN_REGISTER *p_register)
+{
+    BTM_SetDiscoverability (BTM_GENERAL_DISCOVERABLE, 0, 0);
+    BTM_SetConnectability (BTM_CONNECTABLE, 0, 0);
+
+    pan_register_with_bnep ();
+
+    if (!p_register)
+        return;
+
+    pan_cb.pan_conn_state_cb    = p_register->pan_conn_state_cb;
+    pan_cb.pan_bridge_req_cb    = p_register->pan_bridge_req_cb;
+    pan_cb.pan_data_buf_ind_cb  = p_register->pan_data_buf_ind_cb;
+    pan_cb.pan_data_ind_cb      = p_register->pan_data_ind_cb;
+    pan_cb.pan_pfilt_ind_cb     = p_register->pan_pfilt_ind_cb;
+    pan_cb.pan_mfilt_ind_cb     = p_register->pan_mfilt_ind_cb;
+    pan_cb.pan_tx_data_flow_cb  = p_register->pan_tx_data_flow_cb;
+
+    return;
+}
+
+
+
+/*******************************************************************************
+**
+** Function         PAN_Deregister
+**
+** Description      This function is called by the application to de-register
+**                  its callbacks with PAN profile. This will make the PAN to
+**                  become inactive. This will deregister PAN services from SDP
+**                  and close all active connections
+**
+** Parameters:      none
+**
+**
+** Returns          none
+**
+*******************************************************************************/
+void PAN_Deregister (void)
+{
+    pan_cb.pan_bridge_req_cb    = NULL;
+    pan_cb.pan_data_buf_ind_cb  = NULL;
+    pan_cb.pan_data_ind_cb      = NULL;
+    pan_cb.pan_conn_state_cb    = NULL;
+    pan_cb.pan_pfilt_ind_cb     = NULL;
+    pan_cb.pan_mfilt_ind_cb     = NULL;
+
+    PAN_SetRole (PAN_ROLE_INACTIVE, NULL, NULL, NULL, NULL);
+    BNEP_Deregister ();
+
+    return;
+}
+
+
+
+
+/*******************************************************************************
+**
+** Function         PAN_SetRole
+**
+** Description      This function is called by the application to set the PAN
+**                  profile role. This should be called after PAN_Register.
+**                  This can be called any time to change the PAN role
+**
+** Parameters:      role        - is bit map of roles to be active
+**                                      PAN_ROLE_CLIENT is for PANU role
+**                                      PAN_ROLE_GN_SERVER is for GN role
+**                                      PAN_ROLE_NAP_SERVER is for NAP role
+**                  sec_mask    - Security mask for different roles
+**                                      It is array of UINT8. The byte represent the
+**                                      security for roles PANU, GN and NAP in order
+**                  p_user_name - Service name for PANU role
+**                  p_gn_name   - Service name for GN role
+**                  p_nap_name  - Service name for NAP role
+**                                      Can be NULL if user wants it to be default
+**
+** Returns          PAN_SUCCESS     - if the role is set successfully
+**                  PAN_FAILURE     - if the role is not valid
+**
+*******************************************************************************/
+tPAN_RESULT PAN_SetRole (UINT8 role,
+                         UINT8 *sec_mask,
+                         char *p_user_name,
+                         char *p_gn_name,
+                         char *p_nap_name)
+{
+    char                *p_desc;
+    UINT8               security[3] = {PAN_PANU_SECURITY_LEVEL,
+                                       PAN_GN_SECURITY_LEVEL,
+                                       PAN_NAP_SECURITY_LEVEL};
+    UINT8               *p_sec;
+
+    /* If the role is not a valid combination reject it */
+    if ((!(role & (PAN_ROLE_CLIENT | PAN_ROLE_GN_SERVER | PAN_ROLE_NAP_SERVER))) &&
+        role != PAN_ROLE_INACTIVE)
+    {
+        PAN_TRACE_ERROR ("PAN role %d is invalid", role);
+        return PAN_FAILURE;
+    }
+
+    /* If the current active role is same as the role being set do nothing */
+    if (pan_cb.role == role)
+    {
+        PAN_TRACE_EVENT ("PAN role already was set to: %d", role);
+        return PAN_SUCCESS;
+    }
+
+    if (!sec_mask)
+        p_sec = security;
+    else
+        p_sec = sec_mask;
+
+    /* Register all the roles with SDP */
+    PAN_TRACE_API ("PAN_SetRole() called with role 0x%x", role);
+#if (defined (PAN_SUPPORTS_ROLE_NAP) && PAN_SUPPORTS_ROLE_NAP == TRUE)
+    /* Check the service name */
+    if ((p_nap_name == NULL) || (*p_nap_name == 0))
+        p_nap_name = PAN_NAP_DEFAULT_SERVICE_NAME;
+
+    if (role & PAN_ROLE_NAP_SERVER)
+    {
+        /* Registering for NAP service with SDP */
+        p_desc = PAN_NAP_DEFAULT_DESCRIPTION;
+
+        if (pan_cb.pan_nap_sdp_handle != 0)
+            SDP_DeleteRecord (pan_cb.pan_nap_sdp_handle);
+
+        pan_cb.pan_nap_sdp_handle = pan_register_with_sdp (UUID_SERVCLASS_NAP, p_sec[2], p_nap_name, p_desc);
+        bta_sys_add_uuid(UUID_SERVCLASS_NAP);
+    }
+    /* If the NAP role is already active and now being cleared delete the record */
+    else if (pan_cb.role & PAN_ROLE_NAP_SERVER)
+    {
+        if (pan_cb.pan_nap_sdp_handle != 0)
+        {
+            SDP_DeleteRecord (pan_cb.pan_nap_sdp_handle);
+            pan_cb.pan_nap_sdp_handle = 0;
+            bta_sys_remove_uuid(UUID_SERVCLASS_NAP);
+        }
+    }
+#endif
+
+#if (defined (PAN_SUPPORTS_ROLE_GN) && PAN_SUPPORTS_ROLE_GN == TRUE)
+    /* Check the service name */
+    if ((p_gn_name == NULL) || (*p_gn_name == 0))
+        p_gn_name = PAN_GN_DEFAULT_SERVICE_NAME;
+
+    if (role & PAN_ROLE_GN_SERVER)
+    {
+        /* Registering for GN service with SDP */
+        p_desc = PAN_GN_DEFAULT_DESCRIPTION;
+
+        if (pan_cb.pan_gn_sdp_handle != 0)
+            SDP_DeleteRecord (pan_cb.pan_gn_sdp_handle);
+
+        pan_cb.pan_gn_sdp_handle = pan_register_with_sdp (UUID_SERVCLASS_GN, p_sec[1], p_gn_name, p_desc);
+        bta_sys_add_uuid(UUID_SERVCLASS_GN);
+    }
+    /* If the GN role is already active and now being cleared delete the record */
+    else if (pan_cb.role & PAN_ROLE_GN_SERVER)
+    {
+        if (pan_cb.pan_gn_sdp_handle != 0)
+        {
+            SDP_DeleteRecord (pan_cb.pan_gn_sdp_handle);
+            pan_cb.pan_gn_sdp_handle = 0;
+            bta_sys_remove_uuid(UUID_SERVCLASS_GN);
+        }
+    }
+#endif
+
+#if (defined (PAN_SUPPORTS_ROLE_PANU) && PAN_SUPPORTS_ROLE_PANU == TRUE)
+    /* Check the service name */
+    if ((p_user_name == NULL) || (*p_user_name == 0))
+        p_user_name = PAN_PANU_DEFAULT_SERVICE_NAME;
+
+    if (role & PAN_ROLE_CLIENT)
+    {
+        /* Registering for PANU service with SDP */
+        p_desc = PAN_PANU_DEFAULT_DESCRIPTION;
+        if (pan_cb.pan_user_sdp_handle != 0)
+            SDP_DeleteRecord (pan_cb.pan_user_sdp_handle);
+
+        pan_cb.pan_user_sdp_handle = pan_register_with_sdp (UUID_SERVCLASS_PANU, p_sec[0], p_user_name, p_desc);
+        bta_sys_add_uuid(UUID_SERVCLASS_PANU);
+    }
+    /* If the PANU role is already active and now being cleared delete the record */
+    else if (pan_cb.role & PAN_ROLE_CLIENT)
+    {
+        if (pan_cb.pan_user_sdp_handle != 0)
+        {
+            SDP_DeleteRecord (pan_cb.pan_user_sdp_handle);
+            pan_cb.pan_user_sdp_handle = 0;
+            bta_sys_remove_uuid(UUID_SERVCLASS_PANU);
+        }
+    }
+#endif
+
+    /* Check if it is a shutdown request */
+    if (role == PAN_ROLE_INACTIVE)
+        pan_close_all_connections ();
+
+    pan_cb.role = role;
+    PAN_TRACE_EVENT ("PAN role set to: %d", role);
+    return PAN_SUCCESS;
+}
+
+
+
+/*******************************************************************************
+**
+** Function         PAN_Connect
+**
+** Description      This function is called by the application to initiate a
+**                  connection to the remote device
+**
+** Parameters:      rem_bda     - BD Addr of the remote device
+**                  src_role    - Role of the local device for the connection
+**                  dst_role    - Role of the remote device for the connection
+**                                      PAN_ROLE_CLIENT is for PANU role
+**                                      PAN_ROLE_GN_SERVER is for GN role
+**                                      PAN_ROLE_NAP_SERVER is for NAP role
+**                  *handle     - Pointer for returning Handle to the connection
+**
+** Returns          PAN_SUCCESS      - if the connection is initiated successfully
+**                  PAN_NO_RESOURCES - resources are not sufficent
+**                  PAN_FAILURE      - if the connection cannot be initiated
+**                                           this can be because of the combination of
+**                                           src and dst roles may not be valid or
+**                                           allowed at that point of time
+**
+*******************************************************************************/
+tPAN_RESULT PAN_Connect (BD_ADDR rem_bda, UINT8 src_role, UINT8 dst_role, UINT16 *handle)
+{
+    tPAN_CONN       *pcb;
+    tBNEP_RESULT    result;
+    tBT_UUID        src_uuid, dst_uuid;
+    UINT32 mx_chan_id;
+
+    /*
+    ** Initialize the handle so that in case of failure return values
+    ** the profile will not get confused
+    */
+    *handle = BNEP_INVALID_HANDLE;
+
+    /* Check if PAN is active or not */
+    if (!(pan_cb.role & src_role))
+    {
+        PAN_TRACE_ERROR ("PAN is not active for the role %d", src_role);
+        return PAN_FAILURE;
+    }
+
+    /* Validate the parameters before proceeding */
+    if ((src_role != PAN_ROLE_CLIENT && src_role != PAN_ROLE_GN_SERVER && src_role != PAN_ROLE_NAP_SERVER) ||
+        (dst_role != PAN_ROLE_CLIENT && dst_role != PAN_ROLE_GN_SERVER && dst_role != PAN_ROLE_NAP_SERVER))
+    {
+        PAN_TRACE_ERROR ("Either source %d or destination role %d is invalid", src_role, dst_role);
+        return PAN_FAILURE;
+    }
+
+    /* Check if connection exists for this remote device */
+    pcb = pan_get_pcb_by_addr (rem_bda);
+
+    /* If we are PANU for this role validate destination role */
+    if (src_role == PAN_ROLE_CLIENT)
+    {
+        if ((pan_cb.num_conns > 1) || (pan_cb.num_conns && (!pcb)))
+        {
+            /*
+            ** If the request is not for existing connection reject it
+            ** because if there is already a connection we cannot accept
+            ** another connection in PANU role
+            */
+            PAN_TRACE_ERROR ("Cannot make PANU connections when there are more than one connection");
+            return PAN_INVALID_SRC_ROLE;
+        }
+
+        src_uuid.uu.uuid16 = UUID_SERVCLASS_PANU;
+        if (dst_role == PAN_ROLE_CLIENT)
+        {
+            dst_uuid.uu.uuid16 = UUID_SERVCLASS_PANU;
+        }
+        else if (dst_role == PAN_ROLE_GN_SERVER)
+        {
+            dst_uuid.uu.uuid16 = UUID_SERVCLASS_GN;
+        }
+        else
+        {
+            dst_uuid.uu.uuid16 = UUID_SERVCLASS_NAP;
+        }
+        mx_chan_id = dst_uuid.uu.uuid16;
+    }
+    /* If destination is PANU role validate source role */
+    else if (dst_role == PAN_ROLE_CLIENT)
+    {
+        if (pan_cb.num_conns && pan_cb.active_role == PAN_ROLE_CLIENT && !pcb)
+        {
+            PAN_TRACE_ERROR ("Device already have a connection in PANU role");
+            return PAN_INVALID_SRC_ROLE;
+        }
+
+        dst_uuid.uu.uuid16 = UUID_SERVCLASS_PANU;
+        if (src_role == PAN_ROLE_GN_SERVER)
+        {
+            src_uuid.uu.uuid16 = UUID_SERVCLASS_GN;
+        }
+        else
+        {
+            src_uuid.uu.uuid16 = UUID_SERVCLASS_NAP;
+        }
+        mx_chan_id = src_uuid.uu.uuid16;
+    }
+    /* The role combination is not valid */
+    else
+    {
+        PAN_TRACE_ERROR ("Source %d and Destination roles %d are not valid combination",
+            src_role, dst_role);
+        return PAN_FAILURE;
+    }
+
+    /* Allocate control block and initiate connection */
+    if (!pcb)
+        pcb = pan_allocate_pcb (rem_bda, BNEP_INVALID_HANDLE);
+    if (!pcb)
+    {
+        PAN_TRACE_ERROR ("PAN Connection failed because of no resources");
+        return PAN_NO_RESOURCES;
+    }
+    BTM_SetOutService(rem_bda, BTM_SEC_SERVICE_BNEP_PANU, mx_chan_id);
+
+    PAN_TRACE_API ("PAN_Connect() for BD Addr %x.%x.%x.%x.%x.%x",
+        rem_bda[0], rem_bda[1], rem_bda[2], rem_bda[3], rem_bda[4], rem_bda[5]);
+    if (pcb->con_state == PAN_STATE_IDLE)
+    {
+        pan_cb.num_conns++;
+    }
+    else if (pcb->con_state == PAN_STATE_CONNECTED)
+    {
+        pcb->con_flags |= PAN_FLAGS_CONN_COMPLETED;
+    }
+    else
+        /* PAN connection is still in progress */
+        return PAN_WRONG_STATE;
+
+    pcb->con_state = PAN_STATE_CONN_START;
+    pcb->prv_src_uuid = pcb->src_uuid;
+    pcb->prv_dst_uuid = pcb->dst_uuid;
+
+    pcb->src_uuid     = src_uuid.uu.uuid16;
+    pcb->dst_uuid     = dst_uuid.uu.uuid16;
+
+    src_uuid.len      = 2;
+    dst_uuid.len      = 2;
+
+    result = BNEP_Connect (rem_bda, &src_uuid, &dst_uuid, &(pcb->handle));
+    if (result != BNEP_SUCCESS)
+    {
+        pan_release_pcb (pcb);
+        return result;
+    }
+
+    PAN_TRACE_DEBUG ("PAN_Connect() current active role set to %d", src_role);
+    pan_cb.prv_active_role = pan_cb.active_role;
+    pan_cb.active_role = src_role;
+    *handle = pcb->handle;
+    return PAN_SUCCESS;
+}
+
+
+
+
+/*******************************************************************************
+**
+** Function         PAN_Disconnect
+**
+** Description      This is used to disconnect the connection
+**
+** Parameters:      handle           - handle for the connection
+**
+** Returns          PAN_SUCCESS      - if the connection is closed successfully
+**                  PAN_FAILURE      - if the connection is not found or
+**                                           there is an error in disconnecting
+**
+*******************************************************************************/
+tPAN_RESULT PAN_Disconnect (UINT16 handle)
+{
+    tPAN_CONN       *pcb;
+    tBNEP_RESULT    result;
+
+    /* Check if the connection exists */
+    pcb = pan_get_pcb_by_handle (handle);
+    if(!pcb)
+    {
+        PAN_TRACE_ERROR ("PAN connection not found for the handle %d", handle);
+        return PAN_FAILURE;
+    }
+
+    result = BNEP_Disconnect (pcb->handle);
+    if (pcb->con_state != PAN_STATE_IDLE)
+        pan_cb.num_conns--;
+
+    if (pan_cb.pan_bridge_req_cb && pcb->src_uuid == UUID_SERVCLASS_NAP)
+        (*pan_cb.pan_bridge_req_cb) (pcb->rem_bda, FALSE);
+
+    pan_release_pcb (pcb);
+
+    if (result != BNEP_SUCCESS)
+    {
+        PAN_TRACE_EVENT ("Error in closing PAN connection");
+        return PAN_FAILURE;
+    }
+
+    PAN_TRACE_EVENT ("PAN connection closed");
+    return PAN_SUCCESS;
+}
+
+
+/*******************************************************************************
+**
+** Function         PAN_Write
+**
+** Description      This sends data over the PAN connections. If this is called
+**                  on GN or NAP side and the packet is multicast or broadcast
+**                  it will be sent on all the links. Otherwise the correct link
+**                  is found based on the destination address and forwarded on it.
+**
+** Parameters:      handle   - handle for the connection
+**                  dst      - MAC or BD Addr of the destination device
+**                  src      - MAC or BD Addr of the source who sent this packet
+**                  protocol - protocol of the ethernet packet like IP or ARP
+**                  p_data   - pointer to the data
+**                  len      - length of the data
+**                  ext      - to indicate that extension headers present
+**
+** Returns          PAN_SUCCESS       - if the data is sent successfully
+**                  PAN_FAILURE       - if the connection is not found or
+**                                           there is an error in sending data
+**
+*******************************************************************************/
+tPAN_RESULT PAN_Write(UINT16 handle, BD_ADDR dst, BD_ADDR src, UINT16 protocol, UINT8 *p_data, UINT16 len, BOOLEAN ext)
+{
+    if (pan_cb.role == PAN_ROLE_INACTIVE || !pan_cb.num_conns) {
+        PAN_TRACE_ERROR("%s PAN is not active, data write failed.", __func__);
+        return PAN_FAILURE;
+    }
+
+    // If the packet is broadcast or multicast, we're going to have to create
+    // a copy of the packet for each connection. We can save one extra copy
+    // by fast-pathing here and calling BNEP_Write instead of placing the packet
+    // in a BT_HDR buffer, calling BNEP_Write, and then freeing the buffer.
+    if (dst[0] & 0x01) {
+        int i;
+        for (i = 0; i < MAX_PAN_CONNS; ++i) {
+            if (pan_cb.pcb[i].con_state == PAN_STATE_CONNECTED)
+                BNEP_Write (pan_cb.pcb[i].handle, dst, p_data, len, protocol, src, ext);
+        }
+        return PAN_SUCCESS;
+    }
+
+    BT_HDR *buffer = (BT_HDR *)osi_malloc(PAN_BUF_SIZE);
+    buffer->len = len;
+    buffer->offset = PAN_MINIMUM_OFFSET;
+    memcpy((UINT8 *)buffer + sizeof(BT_HDR) + buffer->offset, p_data, buffer->len);
+
+    return PAN_WriteBuf(handle, dst, src, protocol, buffer, ext);
+}
+
+
+/*******************************************************************************
+**
+** Function         PAN_WriteBuf
+**
+** Description      This sends data over the PAN connections. If this is called
+**                  on GN or NAP side and the packet is multicast or broadcast
+**                  it will be sent on all the links. Otherwise the correct link
+**                  is found based on the destination address and forwarded on it
+**                  If the return value is not PAN_SUCCESS the application should
+**                  take care of releasing the message buffer
+**
+** Parameters:      handle   - handle for the connection
+**                  dst      - MAC or BD Addr of the destination device
+**                  src      - MAC or BD Addr of the source who sent this packet
+**                  protocol - protocol of the ethernet packet like IP or ARP
+**                  p_buf    - pointer to the data buffer
+**                  ext      - to indicate that extension headers present
+**
+** Returns          PAN_SUCCESS       - if the data is sent successfully
+**                  PAN_FAILURE       - if the connection is not found or
+**                                           there is an error in sending data
+**
+*******************************************************************************/
+tPAN_RESULT PAN_WriteBuf (UINT16 handle, BD_ADDR dst, BD_ADDR src, UINT16 protocol, BT_HDR *p_buf, BOOLEAN ext)
+{
+    tPAN_CONN       *pcb;
+    UINT16          i;
+    tBNEP_RESULT    result;
+
+    if (pan_cb.role == PAN_ROLE_INACTIVE || (!(pan_cb.num_conns)))
+    {
+        PAN_TRACE_ERROR ("PAN is not active Data write failed");
+        osi_free(p_buf);
+        return PAN_FAILURE;
+    }
+
+    /* Check if it is broadcast or multicast packet */
+    if (dst[0] & 0x01)
+    {
+        UINT8 *data = (UINT8 *)p_buf + sizeof(BT_HDR) + p_buf->offset;
+        for (i = 0; i < MAX_PAN_CONNS; ++i) {
+            if (pan_cb.pcb[i].con_state == PAN_STATE_CONNECTED)
+                BNEP_Write(pan_cb.pcb[i].handle, dst, data, p_buf->len, protocol, src, ext);
+        }
+        osi_free(p_buf);
+        return PAN_SUCCESS;
+    }
+
+    /* Check if the data write is on PANU side */
+    if (pan_cb.active_role == PAN_ROLE_CLIENT)
+    {
+        /* Data write is on PANU connection */
+        for (i=0; i<MAX_PAN_CONNS; i++)
+        {
+            if (pan_cb.pcb[i].con_state == PAN_STATE_CONNECTED &&
+                pan_cb.pcb[i].src_uuid == UUID_SERVCLASS_PANU)
+                break;
+        }
+
+        if (i == MAX_PAN_CONNS)
+        {
+            PAN_TRACE_ERROR ("PAN Don't have any user connections");
+            osi_free(p_buf);
+            return PAN_FAILURE;
+        }
+
+        result = BNEP_WriteBuf (pan_cb.pcb[i].handle, dst, p_buf, protocol, src, ext);
+        if (result == BNEP_IGNORE_CMD)
+        {
+            PAN_TRACE_DEBUG ("PAN ignored data write for PANU connection");
+            return result;
+        }
+        else if (result != BNEP_SUCCESS)
+        {
+            PAN_TRACE_ERROR ("PAN failed to write data for the PANU connection");
+            return result;
+        }
+
+        PAN_TRACE_DEBUG ("PAN successfully wrote data for the PANU connection");
+        return PAN_SUCCESS;
+    }
+
+    /* findout to which connection the data is meant for */
+    pcb = pan_get_pcb_by_handle (handle);
+    if (!pcb)
+    {
+        PAN_TRACE_ERROR ("PAN Buf write for wrong handle");
+        osi_free(p_buf);
+        return PAN_FAILURE;
+    }
+
+    if (pcb->con_state != PAN_STATE_CONNECTED)
+    {
+        PAN_TRACE_ERROR ("PAN Buf write when conn is not active");
+        osi_free(p_buf);
+        return PAN_FAILURE;
+    }
+
+    result = BNEP_WriteBuf (pcb->handle, dst, p_buf, protocol, src, ext);
+    if (result == BNEP_IGNORE_CMD)
+    {
+        PAN_TRACE_DEBUG ("PAN ignored data buf write to PANU");
+        return result;
+    }
+    else if (result != BNEP_SUCCESS)
+    {
+        PAN_TRACE_ERROR ("PAN failed to send data buf to the PANU");
+        return result;
+    }
+
+    PAN_TRACE_DEBUG ("PAN successfully sent data buf to the PANU");
+    return PAN_SUCCESS;
+}
+
+
+/*******************************************************************************
+**
+** Function         PAN_SetProtocolFilters
+**
+** Description      This function is used to set protocol filters on the peer
+**
+** Parameters:      handle      - handle for the connection
+**                  num_filters - number of protocol filter ranges
+**                  start       - array of starting protocol numbers
+**                  end         - array of ending protocol numbers
+**
+**
+** Returns          PAN_SUCCESS        if protocol filters are set successfully
+**                  PAN_FAILURE        if connection not found or error in setting
+**
+*******************************************************************************/
+tPAN_RESULT PAN_SetProtocolFilters (UINT16 handle,
+                                    UINT16 num_filters,
+                                    UINT16 *p_start_array,
+                                    UINT16 *p_end_array)
+{
+    tPAN_CONN       *pcb;
+    tPAN_RESULT     result;
+
+    /* Check if the connection exists */
+    pcb = pan_get_pcb_by_handle (handle);
+    if(!pcb)
+    {
+        PAN_TRACE_ERROR ("PAN connection not found for the handle %d", handle);
+        return PAN_FAILURE;
+    }
+
+    result = BNEP_SetProtocolFilters (pcb->handle, num_filters, p_start_array, p_end_array);
+    if (result != BNEP_SUCCESS)
+    {
+        PAN_TRACE_ERROR ("PAN failed to set protocol filters for handle %d", handle);
+        return result;
+    }
+
+    PAN_TRACE_API ("PAN successfully sent protocol filters for handle %d", handle);
+    return PAN_SUCCESS;
+}
+
+
+
+/*******************************************************************************
+**
+** Function         PAN_SetMulticastFilters
+**
+** Description      This function is used to set multicast filters on the peer
+**
+** Parameters:      handle      - handle for the connection
+**                  num_filters - number of multicast filter ranges
+**                  start       - array of starting multicast filter addresses
+**                  end         - array of ending multicast filter addresses
+**
+**
+** Returns          PAN_SUCCESS        if multicast filters are set successfully
+**                  PAN_FAILURE        if connection not found or error in setting
+**
+*******************************************************************************/
+tBNEP_RESULT PAN_SetMulticastFilters (UINT16 handle,
+                                      UINT16 num_mcast_filters,
+                                      UINT8 *p_start_array,
+                                      UINT8 *p_end_array)
+{
+    tPAN_CONN       *pcb;
+    tPAN_RESULT     result;
+
+    /* Check if the connection exists */
+    pcb = pan_get_pcb_by_handle (handle);
+    if(!pcb)
+    {
+        PAN_TRACE_ERROR ("PAN connection not found for the handle %d", handle);
+        return PAN_FAILURE;
+    }
+
+    result = BNEP_SetMulticastFilters (pcb->handle,
+                            num_mcast_filters, p_start_array, p_end_array);
+    if (result != BNEP_SUCCESS)
+    {
+        PAN_TRACE_ERROR ("PAN failed to set multicast filters for handle %d", handle);
+        return result;
+    }
+
+    PAN_TRACE_API ("PAN successfully sent multicast filters for handle %d", handle);
+    return PAN_SUCCESS;
+}
+
+
+/*******************************************************************************
+**
+** Function         PAN_SetTraceLevel
+**
+** Description      This function sets the trace level for PAN. If called with
+**                  a value of 0xFF, it simply reads the current trace level.
+**
+** Returns          the new (current) trace level
+**
+*******************************************************************************/
+UINT8 PAN_SetTraceLevel (UINT8 new_level)
+{
+    if (new_level != 0xFF)
+        pan_cb.trace_level = new_level;
+    else
+        pan_dump_status ();
+
+    return (pan_cb.trace_level);
+}
+
+/*******************************************************************************
+**
+** Function         PAN_Init
+**
+** Description      This function initializes the PAN module variables
+**
+** Parameters:      none
+**
+** Returns          none
+**
+*******************************************************************************/
+void PAN_Init (void)
+{
+    memset (&pan_cb, 0, sizeof (tPAN_CB));
+
+#if defined(PAN_INITIAL_TRACE_LEVEL)
+    pan_cb.trace_level = PAN_INITIAL_TRACE_LEVEL;
+#else
+    pan_cb.trace_level = BT_TRACE_LEVEL_NONE;    /* No traces */
+#endif
+}
+
+
diff --git a/rtkbt/code/bt/stack/pan/pan_int.h b/rtkbt/code/bt/stack/pan/pan_int.h
new file mode 100755
index 0000000..4e463e6
--- /dev/null
+++ b/rtkbt/code/bt/stack/pan/pan_int.h
@@ -0,0 +1,156 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2001-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains internally used PAN definitions
+ *
+ ******************************************************************************/
+
+#ifndef  PAN_INT_H
+#define  PAN_INT_H
+
+#include "pan_api.h"
+
+/*
+** This role is used to shutdown the profile. Used internally
+** Applications should call PAN_Deregister to shutdown the profile
+*/
+#define PAN_ROLE_INACTIVE      0
+
+/* Protocols supported by the host internal stack, are registered with SDP */
+#define PAN_PROTOCOL_IP        0x0800
+#define PAN_PROTOCOL_ARP       0x0806
+
+#define PAN_PROFILE_VERSION    0x0100   /* Version 1.00 */
+
+/* Define the PAN Connection Control Block
+*/
+typedef struct
+{
+#define PAN_STATE_IDLE              0
+#define PAN_STATE_CONN_START        1
+#define PAN_STATE_CONNECTED         2
+    UINT8             con_state;
+
+#define PAN_FLAGS_CONN_COMPLETED    0x01
+    UINT8             con_flags;
+
+    UINT16            handle;
+    BD_ADDR           rem_bda;
+
+    UINT16            bad_pkts_rcvd;
+    UINT16            src_uuid;
+    UINT16            dst_uuid;
+    UINT16            prv_src_uuid;
+    UINT16            prv_dst_uuid;
+    UINT16            ip_addr_known;
+    UINT32            ip_addr;
+
+} tPAN_CONN;
+
+
+/*  The main PAN control block
+*/
+typedef struct
+{
+    UINT8                       role;
+    UINT8                       active_role;
+    UINT8                       prv_active_role;
+    tPAN_CONN                   pcb[MAX_PAN_CONNS];
+
+    tPAN_CONN_STATE_CB          *pan_conn_state_cb;     /* Connection state callback */
+    tPAN_BRIDGE_REQ_CB          *pan_bridge_req_cb;
+    tPAN_DATA_IND_CB            *pan_data_ind_cb;
+    tPAN_DATA_BUF_IND_CB        *pan_data_buf_ind_cb;
+    tPAN_FILTER_IND_CB          *pan_pfilt_ind_cb;      /* protocol filter indication callback */
+    tPAN_MFILTER_IND_CB         *pan_mfilt_ind_cb;      /* multicast filter indication callback */
+    tPAN_TX_DATA_FLOW_CB        *pan_tx_data_flow_cb;
+
+    char                        *user_service_name;
+    char                        *gn_service_name;
+    char                        *nap_service_name;
+    UINT32                      pan_user_sdp_handle;
+    UINT32                      pan_gn_sdp_handle;
+    UINT32                      pan_nap_sdp_handle;
+    UINT8                       num_conns;
+    UINT8                       trace_level;
+} tPAN_CB;
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Global PAN data
+*/
+#if PAN_DYNAMIC_MEMORY == FALSE
+extern tPAN_CB  pan_cb;
+#else
+extern tPAN_CB  *pan_cb_ptr;
+#define pan_cb (*pan_cb_ptr)
+#endif
+
+/*******************************************************************************/
+extern void pan_register_with_bnep (void);
+extern void pan_conn_ind_cb (UINT16 handle,
+                             BD_ADDR p_bda,
+                             tBT_UUID *remote_uuid,
+                             tBT_UUID *local_uuid,
+                             BOOLEAN is_role_change);
+extern void pan_connect_state_cb (UINT16 handle, BD_ADDR rem_bda, tBNEP_RESULT result, BOOLEAN is_role_change);
+extern void pan_data_ind_cb (UINT16 handle,
+                             UINT8 *src,
+                             UINT8 *dst,
+                             UINT16 protocol,
+                             UINT8 *p_data,
+                             UINT16 len,
+                             BOOLEAN fw_ext_present);
+extern void pan_data_buf_ind_cb (UINT16 handle,
+                                 UINT8 *src,
+                                 UINT8 *dst,
+                                 UINT16 protocol,
+                                 BT_HDR *p_buf,
+                                 BOOLEAN ext);
+extern void pan_tx_data_flow_cb (UINT16 handle,
+                            tBNEP_RESULT  event);
+void pan_proto_filt_ind_cb (UINT16 handle,
+                            BOOLEAN indication,
+                            tBNEP_RESULT result,
+                            UINT16 num_filters,
+                            UINT8 *p_filters);
+void pan_mcast_filt_ind_cb (UINT16 handle,
+                            BOOLEAN indication,
+                            tBNEP_RESULT result,
+                            UINT16 num_filters,
+                            UINT8 *p_filters);
+extern UINT32 pan_register_with_sdp (UINT16 uuid, UINT8 sec_mask, char *p_name, char *p_desc);
+extern tPAN_CONN *pan_allocate_pcb (BD_ADDR p_bda, UINT16 handle);
+extern tPAN_CONN *pan_get_pcb_by_handle (UINT16 handle);
+extern tPAN_CONN *pan_get_pcb_by_addr (BD_ADDR p_bda);
+extern void pan_close_all_connections (void);
+extern void pan_release_pcb (tPAN_CONN *p_pcb);
+extern void pan_dump_status (void);
+
+/********************************************************************************/
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/rtkbt/code/bt/stack/pan/pan_main.c b/rtkbt/code/bt/stack/pan/pan_main.c
new file mode 100755
index 0000000..5c3a367
--- /dev/null
+++ b/rtkbt/code/bt/stack/pan/pan_main.c
@@ -0,0 +1,724 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains main functions to support PAN profile
+ *  commands and events.
+ *
+ ******************************************************************************/
+
+#include <string.h>
+#include "bt_common.h"
+#include "bt_types.h"
+#include "bt_utils.h"
+#include "bnep_api.h"
+#include "pan_api.h"
+#include "pan_int.h"
+#include "sdp_api.h"
+#include "sdpdefs.h"
+#include "l2c_api.h"
+#include "hcidefs.h"
+
+
+#if PAN_DYNAMIC_MEMORY == FALSE
+tPAN_CB  pan_cb;
+#endif
+
+#define UUID_CONSTANT_PART  12
+UINT8 constant_pan_uuid[UUID_CONSTANT_PART] = {0, 0, 0x10, 0, 0x80, 0x00, 0x00, 0x80, 0x5f, 0x9b, 0x34, 0xfb};
+
+
+/*******************************************************************************
+**
+** Function         pan_register_with_bnep
+**
+** Description      This function registers PAN profile with BNEP
+**
+** Parameters:      none
+**
+** Returns          none
+**
+*******************************************************************************/
+void pan_register_with_bnep (void)
+{
+    tBNEP_REGISTER      reg_info;
+
+    memset (&reg_info, 0, sizeof (tBNEP_REGISTER));
+
+    reg_info.p_conn_ind_cb      = pan_conn_ind_cb;
+    reg_info.p_conn_state_cb    = pan_connect_state_cb;
+    reg_info.p_data_buf_cb      = pan_data_buf_ind_cb;
+    reg_info.p_data_ind_cb      = NULL;
+    reg_info.p_tx_data_flow_cb  = pan_tx_data_flow_cb;
+    reg_info.p_filter_ind_cb    = pan_proto_filt_ind_cb;
+    reg_info.p_mfilter_ind_cb   = pan_mcast_filt_ind_cb;
+
+    BNEP_Register (&reg_info);
+}
+
+
+/*******************************************************************************
+**
+** Function         pan_conn_ind_cb
+**
+** Description      This function is registered with BNEP as connection indication
+**                  callback. BNEP will call this when there is connection
+**                  request from the peer. PAN should call BNEP_ConnectResp to
+**                  indicate whether to accept the connection or reject
+**
+** Parameters:      handle          - handle for the connection
+**                  p_bda           - BD Addr of the peer requesting the connection
+**                  remote_uuid     - UUID of the source role (peer device role)
+**                  local_uuid      - UUID of the destination role (local device role)
+**                  is_role_change  - Flag to indicate that it is a role change
+**
+** Returns          none
+**
+*******************************************************************************/
+void pan_conn_ind_cb (UINT16 handle,
+                      BD_ADDR p_bda,
+                      tBT_UUID *remote_uuid,
+                      tBT_UUID *local_uuid,
+                      BOOLEAN is_role_change)
+{
+    tPAN_CONN       *pcb;
+    UINT8           req_role;
+    BOOLEAN         wrong_uuid;
+
+    /*
+    ** If we are in GN or NAP role and have one or more
+    ** active connections and the received connection is
+    ** for user role reject it.
+    ** If we are in user role with one connection active
+    ** reject the connection.
+    ** Allocate PCB and store the parameters
+    ** Make bridge request to the host system if connection
+    ** is for NAP
+    */
+    wrong_uuid = FALSE;
+    if (remote_uuid->len == 16)
+    {
+        /*
+        ** If the UUID is 16 bytes forst two bytes should be zeros
+        ** and last 12 bytes should match the spec defined constant value
+        */
+        if (memcmp (constant_pan_uuid, remote_uuid->uu.uuid128 + 4, UUID_CONSTANT_PART))
+            wrong_uuid = TRUE;
+
+        if (remote_uuid->uu.uuid128[0] || remote_uuid->uu.uuid128[1])
+            wrong_uuid = TRUE;
+
+        /* Extract the 16 bit equivalent of the UUID */
+        remote_uuid->uu.uuid16 = (UINT16)((remote_uuid->uu.uuid128[2] << 8) | remote_uuid->uu.uuid128[3]);
+        remote_uuid->len = 2;
+    }
+    if (remote_uuid->len == 4)
+    {
+        /* First two bytes should be zeros */
+        if (remote_uuid->uu.uuid32 & 0xFFFF0000)
+            wrong_uuid = TRUE;
+
+        remote_uuid->uu.uuid16 = (UINT16)remote_uuid->uu.uuid32;
+        remote_uuid->len = 2;
+    }
+
+    if (wrong_uuid)
+    {
+        PAN_TRACE_ERROR ("PAN Connection failed because of wrong remote UUID ");
+        BNEP_ConnectResp (handle, BNEP_CONN_FAILED_SRC_UUID);
+        return;
+    }
+
+    wrong_uuid = FALSE;
+    if (local_uuid->len == 16)
+    {
+        /*
+        ** If the UUID is 16 bytes forst two bytes should be zeros
+        ** and last 12 bytes should match the spec defined constant value
+        */
+        if (memcmp (constant_pan_uuid, local_uuid->uu.uuid128 + 4, UUID_CONSTANT_PART))
+            wrong_uuid = TRUE;
+
+        if (local_uuid->uu.uuid128[0] || local_uuid->uu.uuid128[1])
+            wrong_uuid = TRUE;
+
+        /* Extract the 16 bit equivalent of the UUID */
+        local_uuid->uu.uuid16 = (UINT16)((local_uuid->uu.uuid128[2] << 8) | local_uuid->uu.uuid128[3]);
+        local_uuid->len = 2;
+    }
+    if (local_uuid->len == 4)
+    {
+        /* First two bytes should be zeros */
+        if (local_uuid->uu.uuid32 & 0xFFFF0000)
+            wrong_uuid = TRUE;
+
+        local_uuid->uu.uuid16 = (UINT16)local_uuid->uu.uuid32;
+        local_uuid->len = 2;
+    }
+
+    if (wrong_uuid)
+    {
+        PAN_TRACE_ERROR ("PAN Connection failed because of wrong local UUID ");
+        BNEP_ConnectResp (handle, BNEP_CONN_FAILED_DST_UUID);
+        return;
+    }
+
+    PAN_TRACE_EVENT ("pan_conn_ind_cb - for handle %d, current role %d, dst uuid 0x%x, src uuid 0x%x, role change %s",
+        handle, pan_cb.role, local_uuid->uu.uuid16, remote_uuid->uu.uuid16, is_role_change?"YES":"NO");
+    /* The acceptable UUID size is only 2 */
+    if (remote_uuid->len != 2)
+    {
+        PAN_TRACE_ERROR ("PAN Connection failed because of wrong UUID size %d", remote_uuid->len);
+        BNEP_ConnectResp (handle, BNEP_CONN_FAILED_UUID_SIZE);
+        return;
+    }
+
+    /* Check if the source UUID is a valid one */
+    if (remote_uuid->uu.uuid16 != UUID_SERVCLASS_PANU &&
+        remote_uuid->uu.uuid16 != UUID_SERVCLASS_NAP &&
+        remote_uuid->uu.uuid16 != UUID_SERVCLASS_GN)
+    {
+        PAN_TRACE_ERROR ("Src UUID 0x%x is not valid", remote_uuid->uu.uuid16);
+        BNEP_ConnectResp (handle, BNEP_CONN_FAILED_SRC_UUID);
+        return;
+    }
+
+    /* Check if the destination UUID is a valid one */
+    if (local_uuid->uu.uuid16 != UUID_SERVCLASS_PANU &&
+        local_uuid->uu.uuid16 != UUID_SERVCLASS_NAP &&
+        local_uuid->uu.uuid16 != UUID_SERVCLASS_GN)
+    {
+        PAN_TRACE_ERROR ("Dst UUID 0x%x is not valid", remote_uuid->uu.uuid16);
+        BNEP_ConnectResp (handle, BNEP_CONN_FAILED_DST_UUID);
+        return;
+    }
+
+    /* Check if currently we support the destination role requested */
+    if (((!(pan_cb.role & UUID_SERVCLASS_PANU))
+        && local_uuid->uu.uuid16 == UUID_SERVCLASS_PANU) ||
+        ((!(pan_cb.role & UUID_SERVCLASS_GN))
+        && local_uuid->uu.uuid16 == UUID_SERVCLASS_GN) ||
+        ((!(pan_cb.role & UUID_SERVCLASS_NAP))
+        && local_uuid->uu.uuid16 == UUID_SERVCLASS_NAP))
+    {
+        PAN_TRACE_ERROR ("PAN Connection failed because of unsupported destination UUID 0x%x", local_uuid->uu.uuid16);
+        BNEP_ConnectResp (handle, BNEP_CONN_FAILED_DST_UUID);
+        return;
+    }
+
+    /* Requested destination role is */
+    if (local_uuid->uu.uuid16 == UUID_SERVCLASS_PANU)
+        req_role = PAN_ROLE_CLIENT;
+    else if (local_uuid->uu.uuid16 == UUID_SERVCLASS_GN)
+        req_role = PAN_ROLE_GN_SERVER;
+    else
+        req_role = PAN_ROLE_NAP_SERVER;
+
+    /* If the connection indication is for the existing connection
+    ** Check if the new destination role is acceptable
+    */
+    pcb = pan_get_pcb_by_handle (handle);
+    if (pcb)
+    {
+        if (pan_cb.num_conns > 1 && local_uuid->uu.uuid16 == UUID_SERVCLASS_PANU)
+        {
+            /* There are connections other than this one
+            ** so we cann't accept PANU role. Reject
+            */
+            PAN_TRACE_ERROR ("Dst UUID should be either GN or NAP only because there are other connections");
+            BNEP_ConnectResp (handle, BNEP_CONN_FAILED_DST_UUID);
+            return;
+        }
+
+        /* If it is already in connected state check for bridging status */
+        if (pcb->con_state == PAN_STATE_CONNECTED)
+        {
+            PAN_TRACE_EVENT ("PAN Role changing New Src 0x%x Dst 0x%x",
+                remote_uuid->uu.uuid16, local_uuid->uu.uuid16);
+
+            pcb->prv_src_uuid = pcb->src_uuid;
+            pcb->prv_dst_uuid = pcb->dst_uuid;
+
+            if (pcb->src_uuid == UUID_SERVCLASS_NAP &&
+                local_uuid->uu.uuid16 != UUID_SERVCLASS_NAP)
+            {
+                /* Remove bridging */
+                if (pan_cb.pan_bridge_req_cb)
+                    (*pan_cb.pan_bridge_req_cb) (pcb->rem_bda, FALSE);
+            }
+        }
+        /* Set the latest active PAN role */
+        pan_cb.active_role = req_role;
+        pcb->src_uuid = local_uuid->uu.uuid16;
+        pcb->dst_uuid = remote_uuid->uu.uuid16;
+        BNEP_ConnectResp (handle, BNEP_SUCCESS);
+        return;
+    }
+    else
+    {
+        /* If this a new connection and destination is PANU role and
+        ** we already have a connection then reject the request.
+        ** If we have a connection in PANU role then reject it
+        */
+        if (pan_cb.num_conns &&
+            (local_uuid->uu.uuid16 == UUID_SERVCLASS_PANU ||
+            pan_cb.active_role == PAN_ROLE_CLIENT))
+        {
+            PAN_TRACE_ERROR ("PAN already have a connection and can't be user");
+            BNEP_ConnectResp (handle, BNEP_CONN_FAILED_DST_UUID);
+            return;
+        }
+    }
+
+    /* This is a new connection */
+    PAN_TRACE_DEBUG ("New connection indication for handle %d", handle);
+    pcb = pan_allocate_pcb (p_bda, handle);
+    if (!pcb)
+    {
+        PAN_TRACE_ERROR ("PAN no control block for new connection");
+        BNEP_ConnectResp (handle, BNEP_CONN_FAILED);
+        return;
+    }
+
+    PAN_TRACE_EVENT ("PAN connection destination UUID is 0x%x", local_uuid->uu.uuid16);
+    /* Set the latest active PAN role */
+    pan_cb.active_role = req_role;
+    pcb->src_uuid = local_uuid->uu.uuid16;
+    pcb->dst_uuid = remote_uuid->uu.uuid16;
+    pcb->con_state = PAN_STATE_CONN_START;
+    pan_cb.num_conns++;
+
+    BNEP_ConnectResp (handle, BNEP_SUCCESS);
+    return;
+}
+
+
+/*******************************************************************************
+**
+** Function         pan_connect_state_cb
+**
+** Description      This function is registered with BNEP as connection state
+**                  change callback. BNEP will call this when the connection
+**                  is established successfully or terminated
+**
+** Parameters:      handle      - handle for the connection given in the connection
+**                                      indication callback
+**                  rem_bda     - remote device bd addr
+**                  result      - indicates whether the connection is up or down
+**                                      BNEP_SUCCESS if the connection is up
+**                                      all other values indicates appropriate errors
+**                  is_role_change - flag to indicate that it is a role change
+**
+** Returns          none
+**
+*******************************************************************************/
+void pan_connect_state_cb (UINT16 handle, BD_ADDR rem_bda, tBNEP_RESULT result, BOOLEAN is_role_change)
+{
+    tPAN_CONN       *pcb;
+    UINT8            peer_role;
+    UNUSED(rem_bda);
+
+    PAN_TRACE_EVENT ("pan_connect_state_cb - for handle %d, result %d", handle, result);
+    pcb = pan_get_pcb_by_handle (handle);
+    if (!pcb)
+    {
+        PAN_TRACE_ERROR ("PAN State change indication for wrong handle %d", handle);
+        return;
+    }
+
+    /* If the connection is getting terminated remove bridging */
+    if (result != BNEP_SUCCESS)
+    {
+        /* Inform the application that connection is down */
+        if (pan_cb.pan_conn_state_cb)
+            (*pan_cb.pan_conn_state_cb) (pcb->handle, pcb->rem_bda, result, is_role_change, PAN_ROLE_INACTIVE, PAN_ROLE_INACTIVE);
+
+        /* Check if this failure is for role change only */
+        if (pcb->con_state != PAN_STATE_CONNECTED &&
+            (pcb->con_flags & PAN_FLAGS_CONN_COMPLETED))
+        {
+            /* restore the original values */
+            PAN_TRACE_EVENT ("restoring the connection state to active");
+            pcb->con_state = PAN_STATE_CONNECTED;
+            pcb->con_flags &= (~PAN_FLAGS_CONN_COMPLETED);
+
+            pcb->src_uuid = pcb->prv_src_uuid;
+            pcb->dst_uuid = pcb->prv_dst_uuid;
+            pan_cb.active_role = pan_cb.prv_active_role;
+
+            if ((pcb->src_uuid == UUID_SERVCLASS_NAP) && pan_cb.pan_bridge_req_cb)
+                (*pan_cb.pan_bridge_req_cb) (pcb->rem_bda, TRUE);
+
+            return;
+        }
+
+        if (pcb->con_state == PAN_STATE_CONNECTED)
+        {
+            /* If the connections destination role is NAP remove bridging */
+            if ((pcb->src_uuid == UUID_SERVCLASS_NAP) && pan_cb.pan_bridge_req_cb)
+                (*pan_cb.pan_bridge_req_cb) (pcb->rem_bda, FALSE);
+        }
+
+        pan_cb.num_conns--;
+        pan_release_pcb (pcb);
+        return;
+    }
+
+    /* Requested destination role is */
+    if (pcb->src_uuid == UUID_SERVCLASS_PANU)
+        pan_cb.active_role = PAN_ROLE_CLIENT;
+    else if (pcb->src_uuid == UUID_SERVCLASS_GN)
+        pan_cb.active_role = PAN_ROLE_GN_SERVER;
+    else
+        pan_cb.active_role = PAN_ROLE_NAP_SERVER;
+
+    if (pcb->dst_uuid == UUID_SERVCLASS_PANU)
+        peer_role = PAN_ROLE_CLIENT;
+    else if (pcb->dst_uuid == UUID_SERVCLASS_GN)
+        peer_role = PAN_ROLE_GN_SERVER;
+    else
+        peer_role = PAN_ROLE_NAP_SERVER;
+
+    pcb->con_state = PAN_STATE_CONNECTED;
+
+    /* Inform the application that connection is down */
+    if (pan_cb.pan_conn_state_cb)
+        (*pan_cb.pan_conn_state_cb) (pcb->handle, pcb->rem_bda, PAN_SUCCESS, is_role_change, pan_cb.active_role, peer_role);
+
+    /* Create bridge if the destination role is NAP */
+    if (pan_cb.pan_bridge_req_cb && pcb->src_uuid == UUID_SERVCLASS_NAP)
+    {
+        PAN_TRACE_EVENT ("PAN requesting for bridge");
+        (*pan_cb.pan_bridge_req_cb) (pcb->rem_bda, TRUE);
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         pan_data_ind_cb
+**
+** Description      This function is registered with BNEP as data indication
+**                  callback. BNEP will call this when the peer sends any data
+**                  on this connection
+**
+** Parameters:      handle      - handle for the connection
+**                  src         - source BD Addr
+**                  dst         - destination BD Addr
+**                  protocol    - Network protocol of the Eth packet
+**                  p_data      - pointer to the data
+**                  len         - length of the data
+**                  fw_ext_present - to indicate whether the data contains any
+**                                         extension headers before the payload
+**
+** Returns          none
+**
+*******************************************************************************/
+void pan_data_ind_cb (UINT16 handle,
+                      UINT8 *src,
+                      UINT8 *dst,
+                      UINT16 protocol,
+                      UINT8 *p_data,
+                      UINT16 len,
+                      BOOLEAN ext)
+{
+    tPAN_CONN       *pcb;
+    UINT16          i;
+    BOOLEAN         forward;
+
+    /*
+    ** Check the connection status
+    ** If the destination address is MAC broadcast send on all links
+    ** except on the one received
+    ** If the destination uuid is for NAP send to host system also
+    ** If the destination address is one of the devices connected
+    ** send the packet to over that link
+    ** If the destination address is unknown and destination uuid is NAP
+    ** send it to the host system
+    */
+
+    PAN_TRACE_EVENT ("pan_data_ind_cb - for handle %d", handle);
+    pcb = pan_get_pcb_by_handle (handle);
+    if (!pcb)
+    {
+        PAN_TRACE_ERROR ("PAN Data indication for wrong handle %d", handle);
+        return;
+    }
+
+    if (pcb->con_state != PAN_STATE_CONNECTED)
+    {
+        PAN_TRACE_ERROR ("PAN Data indication in wrong state %d for handle %d",
+            pcb->con_state, handle);
+        return;
+    }
+
+    /* Check if it is broadcast packet */
+    if (dst[0] & 0x01)
+    {
+        PAN_TRACE_DEBUG ("PAN received broadcast packet on handle %d, src uuid 0x%x",
+            handle, pcb->src_uuid);
+        for (i=0; i<MAX_PAN_CONNS; i++)
+        {
+            if (pan_cb.pcb[i].con_state == PAN_STATE_CONNECTED &&
+                pan_cb.pcb[i].handle != handle &&
+                pcb->src_uuid == pan_cb.pcb[i].src_uuid)
+            {
+                BNEP_Write (pan_cb.pcb[i].handle, dst, p_data, len, protocol, src, ext);
+            }
+        }
+
+        if (pan_cb.pan_data_ind_cb)
+            (*pan_cb.pan_data_ind_cb) (pcb->handle, src, dst, protocol, p_data, len, ext, TRUE);
+
+        return;
+    }
+
+    /* Check if it is for any other PAN connection */
+    for (i=0; i<MAX_PAN_CONNS; i++)
+    {
+        if (pan_cb.pcb[i].con_state == PAN_STATE_CONNECTED &&
+            pcb->src_uuid == pan_cb.pcb[i].src_uuid)
+        {
+            if (memcmp (pan_cb.pcb[i].rem_bda, dst, BD_ADDR_LEN) == 0)
+            {
+                BNEP_Write (pan_cb.pcb[i].handle, dst, p_data, len, protocol, src, ext);
+                return;
+            }
+        }
+    }
+
+   if (pcb->src_uuid == UUID_SERVCLASS_NAP)
+       forward = TRUE;
+   else
+       forward = FALSE;
+
+    /* Send it over the LAN or give it to host software */
+    if (pan_cb.pan_data_ind_cb)
+        (*pan_cb.pan_data_ind_cb) (pcb->handle, src, dst, protocol, p_data, len, ext, forward);
+
+    return;
+}
+
+
+/*******************************************************************************
+**
+** Function         pan_data_buf_ind_cb
+**
+** Description      This function is registered with BNEP as data buffer indication
+**                  callback. BNEP will call this when the peer sends any data
+**                  on this connection. PAN is responsible to release the buffer
+**
+** Parameters:      handle      - handle for the connection
+**                  src         - source BD Addr
+**                  dst         - destination BD Addr
+**                  protocol    - Network protocol of the Eth packet
+**                  p_buf       - pointer to the data buffer
+**                  ext         - to indicate whether the data contains any
+**                                         extension headers before the payload
+**
+** Returns          none
+**
+*******************************************************************************/
+void pan_data_buf_ind_cb (UINT16 handle,
+                          UINT8 *src,
+                          UINT8 *dst,
+                          UINT16 protocol,
+                          BT_HDR *p_buf,
+                          BOOLEAN ext)
+{
+    tPAN_CONN       *pcb, *dst_pcb;
+    tBNEP_RESULT    result;
+    UINT16          i, len;
+    UINT8           *p_data;
+    BOOLEAN         forward = FALSE;
+
+    /* Check if the connection is in right state */
+    pcb = pan_get_pcb_by_handle (handle);
+    if (!pcb)
+    {
+        PAN_TRACE_ERROR ("PAN Data buffer indication for wrong handle %d", handle);
+        osi_free(p_buf);
+        return;
+    }
+
+    if (pcb->con_state != PAN_STATE_CONNECTED)
+    {
+        PAN_TRACE_ERROR ("PAN Data indication in wrong state %d for handle %d",
+            pcb->con_state, handle);
+        osi_free(p_buf);
+        return;
+    }
+
+    p_data = (UINT8 *)(p_buf + 1) + p_buf->offset;
+    len    = p_buf->len;
+
+    PAN_TRACE_EVENT ("pan_data_buf_ind_cb - for handle %d, protocol 0x%x, length %d, ext %d",
+        handle, protocol, len, ext);
+
+   if (pcb->src_uuid == UUID_SERVCLASS_NAP)
+       forward = TRUE;
+   else
+       forward = FALSE;
+
+    /* Check if it is broadcast or multicast packet */
+    if (pcb->src_uuid != UUID_SERVCLASS_PANU)
+    {
+        if (dst[0] & 0x01)
+        {
+            PAN_TRACE_DEBUG ("PAN received broadcast packet on handle %d, src uuid 0x%x",
+                handle, pcb->src_uuid);
+            for (i=0; i<MAX_PAN_CONNS; i++)
+            {
+                if (pan_cb.pcb[i].con_state == PAN_STATE_CONNECTED &&
+                    pan_cb.pcb[i].handle != handle &&
+                    pcb->src_uuid == pan_cb.pcb[i].src_uuid)
+                {
+                    BNEP_Write (pan_cb.pcb[i].handle, dst, p_data, len, protocol, src, ext);
+                }
+            }
+
+            if (pan_cb.pan_data_buf_ind_cb)
+                (*pan_cb.pan_data_buf_ind_cb) (pcb->handle, src, dst, protocol, p_buf, ext, forward);
+            else if (pan_cb.pan_data_ind_cb)
+            {
+                (*pan_cb.pan_data_ind_cb) (pcb->handle, src, dst, protocol, p_data, len, ext, forward);
+                osi_free(p_buf);
+            }
+
+            return;
+        }
+
+        /* Check if it is for any other PAN connection */
+        dst_pcb = pan_get_pcb_by_addr (dst);
+        if (dst_pcb)
+        {
+            PAN_TRACE_EVENT ("%s - destination PANU found on handle %d and sending data, len: %d",
+                __func__, dst_pcb->handle, len);
+
+            result = BNEP_Write (dst_pcb->handle, dst, p_data, len, protocol, src, ext);
+            if (result != BNEP_SUCCESS && result != BNEP_IGNORE_CMD)
+                PAN_TRACE_ERROR ("Failed to write data for PAN connection handle %d", dst_pcb->handle);
+            osi_free(p_buf);
+            return;
+        }
+    }
+
+    /* Send it over the LAN or give it to host software */
+    if (pan_cb.pan_data_buf_ind_cb)
+        (*pan_cb.pan_data_buf_ind_cb) (pcb->handle, src, dst, protocol, p_buf, ext, forward);
+    else if (pan_cb.pan_data_ind_cb)
+    {
+        (*pan_cb.pan_data_ind_cb) (pcb->handle, src, dst, protocol, p_data, len, ext, forward);
+        osi_free(p_buf);
+    }
+    else
+        osi_free(p_buf);
+
+    return;
+}
+
+/*******************************************************************************
+**
+** Function         pan_proto_filt_ind_cb
+**
+** Description      This function is registered with BNEP to receive tx data
+**					flow status
+**
+** Parameters:      handle      - handle for the connection
+**					event       - flow status
+**
+** Returns          none
+**
+*******************************************************************************/
+void pan_tx_data_flow_cb (UINT16 handle,
+                            tBNEP_RESULT  event)
+{
+
+    if (pan_cb.pan_tx_data_flow_cb)
+        (*pan_cb.pan_tx_data_flow_cb) (handle, event);
+
+    return;
+}
+
+/*******************************************************************************
+**
+** Function         pan_proto_filt_ind_cb
+**
+** Description      This function is registered with BNEP as proto filter indication
+**                  callback. BNEP will call this when the peer sends any protocol
+**                  filter set for the connection or to indicate the result of the
+**                  protocol filter set by the local device
+**
+** Parameters:      handle      - handle for the connection
+**                  indication  - TRUE if this is indication
+**                                FALSE if it is called to give the result of local
+**                                      device protocol filter set
+**                  result      - This gives the result of the filter set operation
+**                  num_filters - number of filters set by the peer device
+**                  p_filters   - pointer to the filters set by the peer device
+**
+** Returns          none
+**
+*******************************************************************************/
+void pan_proto_filt_ind_cb (UINT16 handle,
+                            BOOLEAN indication,
+                            tBNEP_RESULT result,
+                            UINT16 num_filters,
+                            UINT8 *p_filters)
+{
+    PAN_TRACE_EVENT ("pan_proto_filt_ind_cb - called for handle %d with ind %d, result %d, num %d",
+                            handle, indication, result, num_filters);
+
+    if (pan_cb.pan_pfilt_ind_cb)
+        (*pan_cb.pan_pfilt_ind_cb) (handle, indication, result, num_filters, p_filters);
+}
+
+
+/*******************************************************************************
+**
+** Function         pan_mcast_filt_ind_cb
+**
+** Description      This function is registered with BNEP as mcast filter indication
+**                  callback. BNEP will call this when the peer sends any multicast
+**                  filter set for the connection or to indicate the result of the
+**                  multicast filter set by the local device
+**
+** Parameters:      handle      - handle for the connection
+**                  indication  - TRUE if this is indication
+**                                FALSE if it is called to give the result of local
+**                                      device multicast filter set
+**                  result      - This gives the result of the filter set operation
+**                  num_filters - number of filters set by the peer device
+**                  p_filters   - pointer to the filters set by the peer device
+**
+** Returns          none
+**
+*******************************************************************************/
+void pan_mcast_filt_ind_cb (UINT16 handle,
+                            BOOLEAN indication,
+                            tBNEP_RESULT result,
+                            UINT16 num_filters,
+                            UINT8 *p_filters)
+{
+    PAN_TRACE_EVENT ("pan_mcast_filt_ind_cb - called for handle %d with ind %d, result %d, num %d",
+                            handle, indication, result, num_filters);
+
+    if (pan_cb.pan_mfilt_ind_cb)
+        (*pan_cb.pan_mfilt_ind_cb) (handle, indication, result, num_filters, p_filters);
+}
diff --git a/rtkbt/code/bt/stack/pan/pan_utils.c b/rtkbt/code/bt/stack/pan/pan_utils.c
new file mode 100755
index 0000000..0059074
--- /dev/null
+++ b/rtkbt/code/bt/stack/pan/pan_utils.c
@@ -0,0 +1,348 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/*****************************************************************************
+ *
+ *  This file contains main functions to support PAN profile
+ *  commands and events.
+ *
+ *****************************************************************************/
+
+#include <string.h>
+#include <stdio.h>
+#include "bt_common.h"
+#include "bnep_api.h"
+#include "pan_api.h"
+#include "pan_int.h"
+#include "sdp_api.h"
+#include "sdpdefs.h"
+#include "l2c_api.h"
+#include "hcidefs.h"
+#include "btm_api.h"
+
+
+static const UINT8 pan_proto_elem_data[]   = {
+                                   0x35, 0x18,          /* data element sequence of length 0x18 bytes */
+                                   0x35, 0x06,          /* data element sequence for L2CAP descriptor */
+                                   0x19, 0x01, 0x00,    /* UUID for L2CAP - 0x0100 */
+                                   0x09, 0x00, 0x0F,    /* PSM for BNEP - 0x000F */
+                                   0x35, 0x0E,          /* data element seqence for BNEP descriptor */
+                                   0x19, 0x00, 0x0F,    /* UUID for BNEP - 0x000F */
+                                   0x09, 0x01, 0x00,    /* BNEP specific parameter 0 -- Version of BNEP = version 1 = 0x0001 */
+                                   0x35, 0x06,          /* BNEP specific parameter 1 -- Supported network packet type list */
+                                   0x09, 0x08, 0x00,    /* network packet type IPv4 = 0x0800 */
+                                   0x09, 0x08, 0x06     /* network packet type ARP  = 0x0806 */
+};
+
+/*******************************************************************************
+**
+** Function         pan_register_with_sdp
+**
+** Description
+**
+** Returns
+**
+*******************************************************************************/
+UINT32 pan_register_with_sdp (UINT16 uuid, UINT8 sec_mask, char *p_name, char *p_desc)
+{
+    UINT32  sdp_handle;
+    UINT16  browse_list = UUID_SERVCLASS_PUBLIC_BROWSE_GROUP;
+    UINT16  security = 0;
+    UINT32  proto_len = (UINT32)pan_proto_elem_data[1];
+
+    /* Create a record */
+    sdp_handle = SDP_CreateRecord ();
+
+    if (sdp_handle == 0)
+    {
+        PAN_TRACE_ERROR ("PAN_SetRole - could not create SDP record");
+        return 0;
+    }
+
+    /* Service Class ID List */
+    SDP_AddServiceClassIdList (sdp_handle, 1, &uuid);
+
+    /* Add protocol element sequence from the constant string */
+    SDP_AddAttribute (sdp_handle, ATTR_ID_PROTOCOL_DESC_LIST, DATA_ELE_SEQ_DESC_TYPE,
+                      proto_len, (UINT8 *)(pan_proto_elem_data+2));
+
+#if 0
+    availability = 0xFF;
+    SDP_AddAttribute (sdp_handle, ATTR_ID_SERVICE_AVAILABILITY, UINT_DESC_TYPE, 1, &availability);
+#endif
+
+    /* Language base */
+    SDP_AddLanguageBaseAttrIDList (sdp_handle, LANG_ID_CODE_ENGLISH, LANG_ID_CHAR_ENCODE_UTF8, LANGUAGE_BASE_ID);
+
+    /* Profile descriptor list */
+    SDP_AddProfileDescriptorList (sdp_handle, uuid, PAN_PROFILE_VERSION);
+
+    /* Service Name */
+    SDP_AddAttribute (sdp_handle, ATTR_ID_SERVICE_NAME, TEXT_STR_DESC_TYPE,
+                        (UINT8) (strlen(p_name) + 1), (UINT8 *)p_name);
+
+    /* Service description */
+    SDP_AddAttribute (sdp_handle, ATTR_ID_SERVICE_DESCRIPTION, TEXT_STR_DESC_TYPE,
+                        (UINT8) (strlen(p_desc) + 1), (UINT8 *)p_desc);
+
+    /* Security description */
+    if (sec_mask)
+    {
+        UINT16_TO_BE_FIELD(&security, 0x0001);
+    }
+    SDP_AddAttribute (sdp_handle, ATTR_ID_SECURITY_DESCRIPTION, UINT_DESC_TYPE, 2, (UINT8 *)&security);
+
+#if (defined (PAN_SUPPORTS_ROLE_NAP) && PAN_SUPPORTS_ROLE_NAP == TRUE)
+    if (uuid == UUID_SERVCLASS_NAP)
+    {
+        UINT16  NetAccessType = 0x0005;      /* Ethernet */
+        UINT32  NetAccessRate = 0x0001312D0; /* 10Mb/sec */
+        UINT8   array[10], *p;
+
+        /* Net access type. */
+        p = array;
+        UINT16_TO_BE_STREAM (p, NetAccessType);
+        SDP_AddAttribute (sdp_handle, ATTR_ID_NET_ACCESS_TYPE, UINT_DESC_TYPE, 2, array);
+
+        /* Net access rate. */
+        p = array;
+        UINT32_TO_BE_STREAM (p, NetAccessRate);
+        SDP_AddAttribute (sdp_handle, ATTR_ID_MAX_NET_ACCESS_RATE, UINT_DESC_TYPE, 4, array);
+
+        /* Register with Security Manager for the specific security level */
+        if ((!BTM_SetSecurityLevel (TRUE, p_name, BTM_SEC_SERVICE_BNEP_NAP,
+                                    sec_mask, BT_PSM_BNEP, BTM_SEC_PROTO_BNEP, UUID_SERVCLASS_NAP))
+         || (!BTM_SetSecurityLevel (FALSE, p_name, BTM_SEC_SERVICE_BNEP_NAP,
+                                    sec_mask, BT_PSM_BNEP, BTM_SEC_PROTO_BNEP, UUID_SERVCLASS_NAP)))
+        {
+            PAN_TRACE_ERROR ("PAN Security Registration failed for PANU");
+        }
+    }
+#endif
+#if (defined (PAN_SUPPORTS_ROLE_GN) && PAN_SUPPORTS_ROLE_GN == TRUE)
+    if (uuid == UUID_SERVCLASS_GN)
+    {
+        if ((!BTM_SetSecurityLevel (TRUE, p_name, BTM_SEC_SERVICE_BNEP_GN,
+                                    sec_mask, BT_PSM_BNEP, BTM_SEC_PROTO_BNEP, UUID_SERVCLASS_GN))
+         || (!BTM_SetSecurityLevel (FALSE, p_name, BTM_SEC_SERVICE_BNEP_GN,
+                                    sec_mask, BT_PSM_BNEP, BTM_SEC_PROTO_BNEP, UUID_SERVCLASS_GN)))
+        {
+            PAN_TRACE_ERROR ("PAN Security Registration failed for GN");
+        }
+    }
+#endif
+#if (defined (PAN_SUPPORTS_ROLE_PANU) && PAN_SUPPORTS_ROLE_PANU == TRUE)
+    if (uuid == UUID_SERVCLASS_PANU)
+    {
+        if ((!BTM_SetSecurityLevel (TRUE, p_name, BTM_SEC_SERVICE_BNEP_PANU,
+                                    sec_mask, BT_PSM_BNEP, BTM_SEC_PROTO_BNEP, UUID_SERVCLASS_PANU))
+         || (!BTM_SetSecurityLevel (FALSE, p_name, BTM_SEC_SERVICE_BNEP_PANU,
+                                    sec_mask, BT_PSM_BNEP, BTM_SEC_PROTO_BNEP, UUID_SERVCLASS_PANU)))
+        {
+            PAN_TRACE_ERROR ("PAN Security Registration failed for PANU");
+        }
+    }
+#endif
+
+    /* Make the service browsable */
+    SDP_AddUuidSequence (sdp_handle,  ATTR_ID_BROWSE_GROUP_LIST, 1, &browse_list);
+
+
+    return sdp_handle;
+}
+
+
+
+/*******************************************************************************
+**
+** Function         pan_allocate_pcb
+**
+** Description
+**
+** Returns
+**
+*******************************************************************************/
+tPAN_CONN *pan_allocate_pcb (BD_ADDR p_bda, UINT16 handle)
+{
+    UINT16      i;
+
+    for (i=0; i<MAX_PAN_CONNS; i++)
+    {
+        if (pan_cb.pcb[i].con_state != PAN_STATE_IDLE &&
+            pan_cb.pcb[i].handle == handle)
+            return NULL;
+    }
+
+    for (i=0; i<MAX_PAN_CONNS; i++)
+    {
+        if (pan_cb.pcb[i].con_state != PAN_STATE_IDLE &&
+            memcmp (pan_cb.pcb[i].rem_bda, p_bda, BD_ADDR_LEN) == 0)
+            return NULL;
+    }
+
+    for (i=0; i<MAX_PAN_CONNS; i++)
+    {
+        if (pan_cb.pcb[i].con_state == PAN_STATE_IDLE)
+        {
+            memset (&(pan_cb.pcb[i]), 0, sizeof (tPAN_CONN));
+            memcpy (pan_cb.pcb[i].rem_bda, p_bda, BD_ADDR_LEN);
+            pan_cb.pcb[i].handle = handle;
+            return &(pan_cb.pcb[i]);
+        }
+    }
+    return NULL;
+}
+
+
+/*******************************************************************************
+**
+** Function         pan_get_pcb_by_handle
+**
+** Description
+**
+** Returns
+**
+*******************************************************************************/
+tPAN_CONN *pan_get_pcb_by_handle (UINT16 handle)
+{
+    UINT16      i;
+
+    for (i=0; i<MAX_PAN_CONNS; i++)
+    {
+        if (pan_cb.pcb[i].con_state != PAN_STATE_IDLE &&
+            pan_cb.pcb[i].handle == handle)
+            return &(pan_cb.pcb[i]);
+    }
+
+    return NULL;
+}
+
+
+/*******************************************************************************
+**
+** Function         pan_get_pcb_by_addr
+**
+** Description
+**
+** Returns
+**
+*******************************************************************************/
+tPAN_CONN *pan_get_pcb_by_addr (BD_ADDR p_bda)
+{
+    UINT16      i;
+
+    for (i=0; i<MAX_PAN_CONNS; i++)
+    {
+        if (pan_cb.pcb[i].con_state == PAN_STATE_IDLE)
+            continue;
+
+        if (memcmp (pan_cb.pcb[i].rem_bda, p_bda, BD_ADDR_LEN) == 0)
+            return &(pan_cb.pcb[i]);
+
+        /*
+        if (pan_cb.pcb[i].mfilter_present &&
+            (memcmp (p_bda, pan_cb.pcb[i].multi_cast_bridge, BD_ADDR_LEN) == 0))
+            return &(pan_cb.pcb[i]);
+        */
+    }
+
+    return NULL;
+}
+
+
+
+
+/*******************************************************************************
+**
+** Function         pan_close_all_connections
+**
+** Description
+**
+** Returns          void
+**
+*******************************************************************************/
+void pan_close_all_connections (void)
+{
+    UINT16      i;
+
+    for (i=0; i<MAX_PAN_CONNS; i++)
+    {
+        if (pan_cb.pcb[i].con_state != PAN_STATE_IDLE)
+        {
+            BNEP_Disconnect (pan_cb.pcb[i].handle);
+            pan_cb.pcb[i].con_state = PAN_STATE_IDLE;
+        }
+    }
+
+    pan_cb.active_role = PAN_ROLE_INACTIVE;
+    pan_cb.num_conns   = 0;
+    return;
+}
+
+
+/*******************************************************************************
+**
+** Function         pan_release_pcb
+**
+** Description      This function releases a PCB.
+**
+** Returns          void
+**
+*******************************************************************************/
+void pan_release_pcb (tPAN_CONN *p_pcb)
+{
+    /* Drop any response pointer we may be holding */
+    memset (p_pcb, 0, sizeof (tPAN_CONN));
+    p_pcb->con_state = PAN_STATE_IDLE;
+}
+
+
+/*******************************************************************************
+**
+** Function         pan_dump_status
+**
+** Description      This function dumps the pan control block and connection
+**                  blocks information
+**
+** Returns          none
+**
+*******************************************************************************/
+void pan_dump_status (void)
+{
+#if (defined (PAN_SUPPORTS_DEBUG_DUMP) && PAN_SUPPORTS_DEBUG_DUMP == TRUE)
+    UINT16          i;
+    char            buff[200];
+    tPAN_CONN      *p_pcb;
+
+    PAN_TRACE_DEBUG ("PAN role %x, active role %d, num_conns %d",
+        pan_cb.role, pan_cb.active_role, pan_cb.num_conns);
+
+    for (i = 0, p_pcb = pan_cb.pcb; i < MAX_PAN_CONNS; i++, p_pcb++)
+    {
+        sprintf (buff, "%d state %d, handle %d, src 0x%x, dst 0x%x, BD %x.%x.%x.%x.%x.%x",
+            i, p_pcb->con_state, p_pcb->handle, p_pcb->src_uuid, p_pcb->dst_uuid,
+            p_pcb->rem_bda[0], p_pcb->rem_bda[1], p_pcb->rem_bda[2],
+            p_pcb->rem_bda[3], p_pcb->rem_bda[4], p_pcb->rem_bda[5]);
+
+        PAN_TRACE_DEBUG (buff);
+    }
+#endif
+}
+
+
+
diff --git a/rtkbt/code/bt/stack/rfcomm/port_api.c b/rtkbt/code/bt/stack/rfcomm/port_api.c
new file mode 100755
index 0000000..13457f9
--- /dev/null
+++ b/rtkbt/code/bt/stack/rfcomm/port_api.c
@@ -0,0 +1,1868 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  this file contains the Serial Port API code
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_port_api"
+
+#include <string.h>
+
+#include "osi/include/log.h"
+#include "osi/include/mutex.h"
+
+#include "btm_api.h"
+#include "btm_int.h"
+#include "bt_common.h"
+#include "l2c_api.h"
+#include "port_api.h"
+#include "port_int.h"
+#include "rfc_int.h"
+#include "rfcdefs.h"
+#include "sdp_api.h"
+
+/* duration of break in 200ms units */
+#define PORT_BREAK_DURATION     1
+
+#define info(fmt, ...)  LOG_INFO(LOG_TAG, "%s: " fmt,__FUNCTION__,  ## __VA_ARGS__)
+#define debug(fmt, ...) LOG_DEBUG(LOG_TAG, "%s: " fmt,__FUNCTION__,  ## __VA_ARGS__)
+#define error(fmt, ...) LOG_ERROR(LOG_TAG, "## ERROR : %s: " fmt "##",__FUNCTION__,  ## __VA_ARGS__)
+#define asrt(s) if(!(s)) LOG_ERROR(LOG_TAG, "## %s assert %s failed at line:%d ##",__FUNCTION__, #s, __LINE__)
+
+/* Mapping from PORT_* result codes to human readable strings. */
+static const char *result_code_strings[] = {
+  "Success",
+  "Unknown error",
+  "Already opened",
+  "Command pending",
+  "App not registered",
+  "No memory",
+  "No resources",
+  "Bad BD address",
+  "Unspecified error",
+  "Bad handle",
+  "Not opened",
+  "Line error",
+  "Start failed",
+  "Parameter negotiation failed",
+  "Port negotiation failed",
+  "Sec failed",
+  "Peer connection failed",
+  "Peer failed",
+  "Peer timeout",
+  "Closed",
+  "TX full",
+  "Local closed",
+  "Local timeout",
+  "TX queue disabled",
+  "Page timeout",
+  "Invalid SCN",
+  "Unknown result code"
+};
+
+/*******************************************************************************
+**
+** Function         RFCOMM_CreateConnection
+**
+** Description      RFCOMM_CreateConnection function is used from the application
+**                  to establish serial port connection to the peer device,
+**                  or allow RFCOMM to accept a connection from the peer
+**                  application.
+**
+** Parameters:      scn          - Service Channel Number as registered with
+**                                 the SDP (server) or obtained using SDP from
+**                                 the peer device (client).
+**                  is_server    - TRUE if requesting application is a server
+**                  mtu          - Maximum frame size the application can accept
+**                  bd_addr      - BD_ADDR of the peer (client)
+**                  mask         - specifies events to be enabled.  A value
+**                                 of zero disables all events.
+**                  p_handle     - OUT pointer to the handle.
+**                  p_mgmt_cb    - pointer to callback function to receive
+**                                 connection up/down events.
+** Notes:
+**
+** Server can call this function with the same scn parameter multiple times if
+** it is ready to accept multiple simulteneous connections.
+**
+** DLCI for the connection is (scn * 2 + 1) if client originates connection on
+** existing none initiator multiplexer channel.  Otherwise it is (scn * 2).
+** For the server DLCI can be changed later if client will be calling it using
+** (scn * 2 + 1) dlci.
+**
+*******************************************************************************/
+int RFCOMM_CreateConnection (UINT16 uuid, UINT8 scn, BOOLEAN is_server,
+                             UINT16 mtu, BD_ADDR bd_addr, UINT16 *p_handle,
+                             tPORT_CALLBACK *p_mgmt_cb)
+{
+    tPORT      *p_port;
+    int        i;
+    UINT8      dlci;
+    tRFC_MCB   *p_mcb = port_find_mcb (bd_addr);
+    UINT16     rfcomm_mtu;
+
+
+    RFCOMM_TRACE_API ("RFCOMM_CreateConnection()  BDA: %02x-%02x-%02x-%02x-%02x-%02x",
+                       bd_addr[0], bd_addr[1], bd_addr[2], bd_addr[3], bd_addr[4], bd_addr[5]);
+
+    *p_handle = 0;
+
+    if (( scn == 0 )||(scn >= PORT_MAX_RFC_PORTS ))
+    {
+        /* Server Channel Number(SCN) should be in range 1...30 */
+        RFCOMM_TRACE_ERROR ("RFCOMM_CreateConnection - invalid SCN");
+        return (PORT_INVALID_SCN);
+    }
+
+    /* For client that originate connection on the existing none initiator */
+    /* multiplexer channel DLCI should be odd */
+    if (p_mcb && !p_mcb->is_initiator && !is_server)
+        dlci = (scn << 1) + 1;
+    else
+        dlci = (scn << 1);
+    RFCOMM_TRACE_API("RFCOMM_CreateConnection(): scn:%d, dlci:%d, is_server:%d mtu:%d, p_mcb:%p",
+                       scn, dlci, is_server, mtu, p_mcb);
+
+    /* For the server side always allocate a new port.  On the client side */
+    /* do not allow the same (dlci, bd_addr) to be opened twice by application */
+    if (!is_server && ((p_port = port_find_port (dlci, bd_addr)) != NULL))
+    {
+        /* if existing port is also a client port */
+        if (p_port->is_server == FALSE)
+        {
+            RFCOMM_TRACE_ERROR ("RFCOMM_CreateConnection - already opened state:%d, RFC state:%d, MCB state:%d",
+                p_port->state, p_port->rfc.state, p_port->rfc.p_mcb ? p_port->rfc.p_mcb->state : 0);
+            *p_handle = p_port->inx;
+            return (PORT_ALREADY_OPENED);
+        }
+    }
+
+    if ((p_port = port_allocate_port (dlci, bd_addr)) == NULL)
+    {
+        RFCOMM_TRACE_WARNING ("RFCOMM_CreateConnection - no resources");
+        return (PORT_NO_RESOURCES);
+    }
+   RFCOMM_TRACE_API("RFCOMM_CreateConnection(): scn:%d, dlci:%d, is_server:%d mtu:%d, p_mcb:%p, p_port:%p",
+                       scn, dlci, is_server, mtu, p_mcb, p_port);
+
+    p_port->default_signal_state = (PORT_DTRDSR_ON | PORT_CTSRTS_ON | PORT_DCD_ON);
+
+    switch (uuid)
+    {
+    case UUID_PROTOCOL_OBEX:
+        p_port->default_signal_state = PORT_OBEX_DEFAULT_SIGNAL_STATE;
+        break;
+    case UUID_SERVCLASS_SERIAL_PORT:
+        p_port->default_signal_state = PORT_SPP_DEFAULT_SIGNAL_STATE;
+        break;
+    case UUID_SERVCLASS_LAN_ACCESS_USING_PPP:
+        p_port->default_signal_state = PORT_PPP_DEFAULT_SIGNAL_STATE;
+        break;
+    case UUID_SERVCLASS_DIALUP_NETWORKING:
+    case UUID_SERVCLASS_FAX:
+        p_port->default_signal_state = PORT_DUN_DEFAULT_SIGNAL_STATE;
+        break;
+    }
+
+    RFCOMM_TRACE_EVENT ("RFCOMM_CreateConnection dlci:%d signal state:0x%x", dlci, p_port->default_signal_state);
+
+    *p_handle = p_port->inx;
+
+    p_port->state        = PORT_STATE_OPENING;
+    p_port->uuid         = uuid;
+    p_port->is_server    = is_server;
+    p_port->scn          = scn;
+    p_port->ev_mask      = 0;
+
+    /* If the MTU is not specified (0), keep MTU decision until the
+     * PN frame has to be send
+     * at that time connection should be established and we
+     * will know for sure our prefered MTU
+     */
+
+    rfcomm_mtu = L2CAP_MTU_SIZE - RFCOMM_DATA_OVERHEAD;
+
+    if (mtu)
+        p_port->mtu      = (mtu < rfcomm_mtu) ? mtu : rfcomm_mtu;
+    else
+        p_port->mtu      = rfcomm_mtu;
+
+    /* server doesn't need to release port when closing */
+    if( is_server )
+    {
+        p_port->keep_port_handle = TRUE;
+
+        /* keep mtu that user asked, p_port->mtu could be updated during param negotiation */
+        p_port->keep_mtu         = p_port->mtu;
+    }
+
+    p_port->local_ctrl.modem_signal = p_port->default_signal_state;
+    p_port->local_ctrl.fc           = FALSE;
+
+    p_port->p_mgmt_callback = p_mgmt_cb;
+
+    for (i = 0; i < BD_ADDR_LEN; i++)
+        p_port->bd_addr[i] = bd_addr[i];
+
+    /* If this is not initiator of the connection need to just wait */
+    if (p_port->is_server)
+    {
+        return (PORT_SUCCESS);
+    }
+
+    /* Open will be continued after security checks are passed */
+    return port_open_continue (p_port);
+}
+
+/*******************************************************************************
+**
+** Function         RFCOMM_RemoveConnection
+**
+** Description      This function is called to close the specified connection.
+**
+** Parameters:      handle     - Handle returned in the RFCOMM_CreateConnection
+**
+*******************************************************************************/
+int RFCOMM_RemoveConnection (UINT16 handle)
+{
+    tPORT      *p_port;
+
+
+    RFCOMM_TRACE_API ("RFCOMM_RemoveConnection() handle:%d", handle);
+
+    /* Check if handle is valid to avoid crashing */
+    if ((handle == 0) || (handle > MAX_RFC_PORTS))
+    {
+        RFCOMM_TRACE_ERROR ("RFCOMM_RemoveConnection() BAD handle:%d", handle);
+        return (PORT_BAD_HANDLE);
+    }
+    p_port = &rfc_cb.port.port[handle - 1];
+
+    if (!p_port->in_use || (p_port->state == PORT_STATE_CLOSED))
+    {
+        RFCOMM_TRACE_EVENT ("RFCOMM_RemoveConnection() Not opened:%d", handle);
+        return (PORT_SUCCESS);
+    }
+
+    p_port->state = PORT_STATE_CLOSING;
+
+    port_start_close (p_port);
+
+    return (PORT_SUCCESS);
+}
+
+/*******************************************************************************
+**
+** Function         RFCOMM_RemoveServer
+**
+** Description      This function is called to close the server port.
+**
+** Parameters:      handle     - Handle returned in the RFCOMM_CreateConnection
+**
+*******************************************************************************/
+int RFCOMM_RemoveServer (UINT16 handle)
+{
+    tPORT      *p_port;
+
+    RFCOMM_TRACE_API ("RFCOMM_RemoveServer() handle:%d", handle);
+
+    /* Check if handle is valid to avoid crashing */
+    if ((handle == 0) || (handle > MAX_RFC_PORTS))
+    {
+        RFCOMM_TRACE_ERROR ("RFCOMM_RemoveServer() BAD handle:%d", handle);
+        return (PORT_BAD_HANDLE);
+    }
+    p_port = &rfc_cb.port.port[handle - 1];
+
+    /* Do not report any events to the client any more. */
+    p_port->p_mgmt_callback = NULL;
+
+    if (!p_port->in_use || (p_port->state == PORT_STATE_CLOSED))
+    {
+        RFCOMM_TRACE_EVENT ("RFCOMM_RemoveServer() Not opened:%d", handle);
+        return (PORT_SUCCESS);
+    }
+
+    /* this port will be deallocated after closing */
+    p_port->keep_port_handle = FALSE;
+    p_port->state = PORT_STATE_CLOSING;
+
+    port_start_close (p_port);
+
+    return (PORT_SUCCESS);
+}
+
+/*******************************************************************************
+**
+** Function         PORT_SetEventCallback
+**
+** Description      This function is called to provide an address of the
+**                  function which will be called when one of the events
+**                  specified in the mask occures.
+**
+** Parameters:      handle     - Handle returned in the RFCOMM_CreateConnection
+**                  p_callback - address of the callback function which should
+**                               be called from the RFCOMM when an event
+**                               specified in the mask occures.
+**
+**
+*******************************************************************************/
+int PORT_SetEventCallback (UINT16 port_handle, tPORT_CALLBACK *p_port_cb)
+{
+    tPORT  *p_port;
+
+    /* Check if handle is valid to avoid crashing */
+    if ((port_handle == 0) || (port_handle > MAX_RFC_PORTS))
+    {
+        return (PORT_BAD_HANDLE);
+    }
+
+    p_port = &rfc_cb.port.port[port_handle - 1];
+
+    if (!p_port->in_use || (p_port->state == PORT_STATE_CLOSED))
+    {
+        return (PORT_NOT_OPENED);
+    }
+
+    RFCOMM_TRACE_API ("PORT_SetEventCallback() handle:%d", port_handle);
+
+    p_port->p_callback = p_port_cb;
+
+    return (PORT_SUCCESS);
+}
+/*******************************************************************************
+**
+** Function         PORT_ClearKeepHandleFlag
+**
+** Description      This function is called to clear the keep handle flag
+**                  which will cause not to keep the port handle open when closed
+** Parameters:      handle     - Handle returned in the RFCOMM_CreateConnection
+**
+*******************************************************************************/
+
+int PORT_ClearKeepHandleFlag (UINT16 port_handle)
+{
+    tPORT  *p_port;
+
+    /* Check if handle is valid to avoid crashing */
+    if ((port_handle == 0) || (port_handle > MAX_RFC_PORTS))
+    {
+        return (PORT_BAD_HANDLE);
+    }
+
+    p_port = &rfc_cb.port.port[port_handle - 1];
+    p_port->keep_port_handle = 0;
+    return (PORT_SUCCESS);
+}
+
+/*******************************************************************************
+**
+** Function         PORT_SetDataCallback
+**
+** Description      This function is when a data packet is received
+**
+** Parameters:      handle     - Handle returned in the RFCOMM_CreateConnection
+**                  p_callback - address of the callback function which should
+**                               be called from the RFCOMM when data packet
+**                               is received.
+**
+**
+*******************************************************************************/
+int PORT_SetDataCallback (UINT16 port_handle, tPORT_DATA_CALLBACK *p_port_cb)
+{
+    tPORT  *p_port;
+
+    RFCOMM_TRACE_API ("PORT_SetDataCallback() handle:%d cb 0x%x", port_handle, p_port_cb);
+
+    /* Check if handle is valid to avoid crashing */
+    if ((port_handle == 0) || (port_handle > MAX_RFC_PORTS))
+    {
+        return (PORT_BAD_HANDLE);
+    }
+
+    p_port = &rfc_cb.port.port[port_handle - 1];
+
+    if (!p_port->in_use || (p_port->state == PORT_STATE_CLOSED))
+    {
+        return (PORT_NOT_OPENED);
+    }
+
+    p_port->p_data_callback = p_port_cb;
+
+    return (PORT_SUCCESS);
+}
+/*******************************************************************************
+**
+** Function         PORT_SetCODataCallback
+**
+** Description      This function is when a data packet is received
+**
+** Parameters:      handle     - Handle returned in the RFCOMM_CreateConnection
+**                  p_callback - address of the callback function which should
+**                               be called from the RFCOMM when data packet
+**                               is received.
+**
+**
+*******************************************************************************/
+int PORT_SetDataCOCallback (UINT16 port_handle, tPORT_DATA_CO_CALLBACK *p_port_cb)
+{
+    tPORT  *p_port;
+
+    RFCOMM_TRACE_API ("PORT_SetDataCOCallback() handle:%d cb 0x%x", port_handle, p_port_cb);
+
+    /* Check if handle is valid to avoid crashing */
+    if ((port_handle == 0) || (port_handle > MAX_RFC_PORTS))
+    {
+        return (PORT_BAD_HANDLE);
+    }
+
+    p_port = &rfc_cb.port.port[port_handle - 1];
+
+    if (!p_port->in_use || (p_port->state == PORT_STATE_CLOSED))
+    {
+        return (PORT_NOT_OPENED);
+    }
+
+    p_port->p_data_co_callback = p_port_cb;
+
+    return (PORT_SUCCESS);
+}
+
+/*******************************************************************************
+**
+** Function         PORT_SetEventMask
+**
+** Description      This function is called to close the specified connection.
+**
+** Parameters:      handle     - Handle returned in the RFCOMM_CreateConnection
+**                  mask   - Bitmask of the events the host is interested in
+**
+*******************************************************************************/
+int PORT_SetEventMask (UINT16 port_handle, UINT32 mask)
+{
+    tPORT  *p_port;
+
+    RFCOMM_TRACE_API ("PORT_SetEventMask() handle:%d mask:0x%x", port_handle, mask);
+
+    /* Check if handle is valid to avoid crashing */
+    if ((port_handle == 0) || (port_handle > MAX_RFC_PORTS))
+    {
+        return (PORT_BAD_HANDLE);
+    }
+
+    p_port = &rfc_cb.port.port[port_handle - 1];
+
+    if (!p_port->in_use || (p_port->state == PORT_STATE_CLOSED))
+    {
+        return (PORT_NOT_OPENED);
+    }
+
+    p_port->ev_mask = mask;
+
+    return (PORT_SUCCESS);
+}
+
+/*******************************************************************************
+**
+** Function         PORT_CheckConnection
+**
+** Description      This function returns PORT_SUCCESS if connection referenced
+**                  by handle is up and running
+**
+** Parameters:      handle     - Handle returned in the RFCOMM_CreateConnection
+**                  bd_addr    - OUT bd_addr of the peer
+**                  p_lcid     - OUT L2CAP's LCID
+**
+*******************************************************************************/
+int PORT_CheckConnection (UINT16 handle, BD_ADDR bd_addr, UINT16 *p_lcid)
+{
+    tPORT      *p_port;
+
+    RFCOMM_TRACE_API ("PORT_CheckConnection() handle:%d", handle);
+
+    /* Check if handle is valid to avoid crashing */
+    if ((handle == 0) || (handle > MAX_RFC_PORTS))
+    {
+        return (PORT_BAD_HANDLE);
+    }
+
+    p_port = &rfc_cb.port.port[handle - 1];
+
+    if (!p_port->in_use || (p_port->state == PORT_STATE_CLOSED))
+    {
+        return (PORT_NOT_OPENED);
+    }
+
+    if (!p_port->rfc.p_mcb
+     || !p_port->rfc.p_mcb->peer_ready
+     || (p_port->rfc.state != RFC_STATE_OPENED))
+    {
+        return (PORT_LINE_ERR);
+    }
+
+    memcpy (bd_addr, p_port->rfc.p_mcb->bd_addr, BD_ADDR_LEN);
+    if (p_lcid)
+        *p_lcid = p_port->rfc.p_mcb->lcid;
+
+    return (PORT_SUCCESS);
+}
+
+/*******************************************************************************
+**
+** Function         PORT_IsOpening
+**
+** Description      This function returns TRUE if there is any RFCOMM connection
+**                  opening in process.
+**
+** Parameters:      TRUE if any connection opening is found
+**                  bd_addr    - bd_addr of the peer
+**
+*******************************************************************************/
+BOOLEAN PORT_IsOpening (BD_ADDR bd_addr)
+{
+    UINT8   xx, yy;
+    tRFC_MCB *p_mcb = NULL;
+    tPORT  *p_port;
+    BOOLEAN found_port;
+
+    /* Check for any rfc_mcb which is in the middle of opening. */
+    for (xx = 0; xx < MAX_BD_CONNECTIONS; xx++)
+    {
+        if ((rfc_cb.port.rfc_mcb[xx].state > RFC_MX_STATE_IDLE) &&
+            (rfc_cb.port.rfc_mcb[xx].state < RFC_MX_STATE_CONNECTED))
+        {
+            memcpy (bd_addr, rfc_cb.port.rfc_mcb[xx].bd_addr, BD_ADDR_LEN);
+            return TRUE;
+        }
+
+        if (rfc_cb.port.rfc_mcb[xx].state == RFC_MX_STATE_CONNECTED)
+        {
+            found_port = FALSE;
+            p_mcb = &rfc_cb.port.rfc_mcb[xx];
+            p_port = &rfc_cb.port.port[0];
+
+            for (yy = 0; yy < MAX_RFC_PORTS; yy++, p_port++)
+            {
+                if (p_port->rfc.p_mcb == p_mcb)
+                {
+                    found_port = TRUE;
+                    break;
+                }
+            }
+
+            if ((!found_port) ||
+                (found_port && (p_port->rfc.state < RFC_STATE_OPENED)))
+            {
+                /* Port is not established yet. */
+                memcpy (bd_addr, rfc_cb.port.rfc_mcb[xx].bd_addr, BD_ADDR_LEN);
+                return TRUE;
+            }
+        }
+    }
+
+    return FALSE;
+}
+
+/*******************************************************************************
+**
+** Function         PORT_SetState
+**
+** Description      This function configures connection according to the
+**                  specifications in the tPORT_STATE structure.
+**
+** Parameters:      handle     - Handle returned in the RFCOMM_CreateConnection
+**                  p_settings - Pointer to a tPORT_STATE structure containing
+**                               configuration information for the connection.
+**
+**
+*******************************************************************************/
+int PORT_SetState (UINT16 handle, tPORT_STATE *p_settings)
+{
+    tPORT      *p_port;
+    UINT8       baud_rate;
+
+    RFCOMM_TRACE_API ("PORT_SetState() handle:%d", handle);
+
+    /* Check if handle is valid to avoid crashing */
+    if ((handle == 0) || (handle > MAX_RFC_PORTS))
+    {
+        return (PORT_BAD_HANDLE);
+    }
+
+    p_port = &rfc_cb.port.port[handle - 1];
+
+    if (!p_port->in_use || (p_port->state == PORT_STATE_CLOSED))
+    {
+        return (PORT_NOT_OPENED);
+    }
+
+    if (p_port->line_status)
+    {
+        return (PORT_LINE_ERR);
+    }
+
+    RFCOMM_TRACE_API ("PORT_SetState() handle:%d FC_TYPE:0x%x", handle,
+                       p_settings->fc_type);
+
+    baud_rate = p_port->user_port_pars.baud_rate;
+    p_port->user_port_pars = *p_settings;
+
+    /* for now we've been asked to pass only baud rate */
+    if (baud_rate != p_settings->baud_rate)
+    {
+        port_start_par_neg (p_port);
+    }
+    return (PORT_SUCCESS);
+}
+
+/*******************************************************************************
+**
+** Function         PORT_GetRxQueueCnt
+**
+** Description      This function return number of buffers on the rx queue.
+**
+** Parameters:      handle     - Handle returned in the RFCOMM_CreateConnection
+**                  p_rx_queue_count - Pointer to return queue count in.
+**
+*******************************************************************************/
+int PORT_GetRxQueueCnt (UINT16 handle, UINT16 *p_rx_queue_count)
+{
+    tPORT      *p_port;
+
+    RFCOMM_TRACE_API ("PORT_GetRxQueueCnt() handle:%d", handle);
+
+    /* Check if handle is valid to avoid crashing */
+    if ((handle == 0) || (handle > MAX_RFC_PORTS))
+    {
+        return (PORT_BAD_HANDLE);
+    }
+
+    p_port = &rfc_cb.port.port[handle - 1];
+
+    if (!p_port->in_use || (p_port->state == PORT_STATE_CLOSED))
+    {
+        return (PORT_NOT_OPENED);
+    }
+
+    if (p_port->line_status)
+    {
+        return (PORT_LINE_ERR);
+    }
+
+    *p_rx_queue_count = p_port->rx.queue_size;
+
+	RFCOMM_TRACE_API ("PORT_GetRxQueueCnt() p_rx_queue_count:%d, p_port->rx.queue.count = %d",
+		                                     *p_rx_queue_count, p_port->rx.queue_size);
+
+    return (PORT_SUCCESS);
+}
+
+/*******************************************************************************
+**
+** Function         PORT_GetState
+**
+** Description      This function is called to fill tPORT_STATE structure
+**                  with the curremt control settings for the port
+**
+** Parameters:      handle     - Handle returned in the RFCOMM_CreateConnection
+**                  p_settings - Pointer to a tPORT_STATE structure in which
+**                               configuration information is returned.
+**
+*******************************************************************************/
+int PORT_GetState (UINT16 handle, tPORT_STATE *p_settings)
+{
+    tPORT      *p_port;
+
+    RFCOMM_TRACE_API ("PORT_GetState() handle:%d", handle);
+
+    /* Check if handle is valid to avoid crashing */
+    if ((handle == 0) || (handle > MAX_RFC_PORTS))
+    {
+        return (PORT_BAD_HANDLE);
+    }
+
+    p_port = &rfc_cb.port.port[handle - 1];
+
+    if (!p_port->in_use || (p_port->state == PORT_STATE_CLOSED))
+    {
+        return (PORT_NOT_OPENED);
+    }
+
+    if (p_port->line_status)
+    {
+        return (PORT_LINE_ERR);
+    }
+
+    *p_settings = p_port->user_port_pars;
+    return (PORT_SUCCESS);
+}
+
+/*******************************************************************************
+**
+** Function         PORT_Control
+**
+** Description      This function directs a specified connection to pass control
+**                  control information to the peer device.
+**
+** Parameters:      handle     - Handle returned in the RFCOMM_CreateConnection
+**                  signal     = specify the function to be passed
+**
+*******************************************************************************/
+int PORT_Control (UINT16 handle, UINT8 signal)
+{
+    tPORT      *p_port;
+    UINT8      old_modem_signal;
+
+    RFCOMM_TRACE_API ("PORT_Control() handle:%d signal:0x%x", handle, signal);
+
+    /* Check if handle is valid to avoid crashing */
+    if ((handle == 0) || (handle > MAX_RFC_PORTS))
+    {
+        return (PORT_BAD_HANDLE);
+    }
+
+    p_port = &rfc_cb.port.port[handle - 1];
+
+    if (!p_port->in_use || (p_port->state == PORT_STATE_CLOSED))
+    {
+        return (PORT_NOT_OPENED);
+    }
+
+    old_modem_signal = p_port->local_ctrl.modem_signal;
+    p_port->local_ctrl.break_signal = 0;
+
+    switch (signal)
+    {
+    case PORT_SET_CTSRTS:
+        p_port->local_ctrl.modem_signal |= PORT_CTSRTS_ON;
+        break;
+
+    case PORT_CLR_CTSRTS:
+        p_port->local_ctrl.modem_signal &= ~PORT_CTSRTS_ON;
+        break;
+
+    case PORT_SET_DTRDSR:
+        p_port->local_ctrl.modem_signal |= PORT_DTRDSR_ON;
+        break;
+
+    case PORT_CLR_DTRDSR:
+        p_port->local_ctrl.modem_signal &= ~PORT_DTRDSR_ON;
+        break;
+
+    case PORT_SET_RI:
+        p_port->local_ctrl.modem_signal |= PORT_RING_ON;
+        break;
+
+    case PORT_CLR_RI:
+        p_port->local_ctrl.modem_signal &= ~PORT_RING_ON;
+        break;
+
+    case PORT_SET_DCD:
+        p_port->local_ctrl.modem_signal |= PORT_DCD_ON;
+        break;
+
+    case PORT_CLR_DCD:
+        p_port->local_ctrl.modem_signal &= ~PORT_DCD_ON;
+        break;
+    }
+
+    if (signal == PORT_BREAK)
+        p_port->local_ctrl.break_signal = PORT_BREAK_DURATION;
+    else if (p_port->local_ctrl.modem_signal == old_modem_signal)
+        return (PORT_SUCCESS);
+
+    port_start_control (p_port);
+
+    RFCOMM_TRACE_EVENT ("PORT_Control DTR_DSR : %d, RTS_CTS : %d, RI : %d, DCD : %d",
+        ((p_port->local_ctrl.modem_signal & MODEM_SIGNAL_DTRDSR) ? 1 : 0),
+        ((p_port->local_ctrl.modem_signal & MODEM_SIGNAL_RTSCTS) ? 1 : 0),
+        ((p_port->local_ctrl.modem_signal & MODEM_SIGNAL_RI) ? 1 : 0),
+        ((p_port->local_ctrl.modem_signal & MODEM_SIGNAL_DCD) ? 1 : 0));
+
+    return (PORT_SUCCESS);
+}
+
+/*******************************************************************************
+**
+** Function         PORT_FlowControl
+**
+** Description      This function directs a specified connection to pass
+**                  flow control message to the peer device.  Enable flag passed
+**                  shows if port can accept more data.
+**
+** Parameters:      handle     - Handle returned in the RFCOMM_CreateConnection
+**                  enable     - enables data flow
+**
+*******************************************************************************/
+int PORT_FlowControl (UINT16 handle, BOOLEAN enable)
+{
+    tPORT      *p_port;
+    BOOLEAN    old_fc;
+    UINT32     events;
+
+    RFCOMM_TRACE_API ("PORT_FlowControl() handle:%d enable: %d", handle, enable);
+
+    /* Check if handle is valid to avoid crashing */
+    if ((handle == 0) || (handle > MAX_RFC_PORTS))
+    {
+        return (PORT_BAD_HANDLE);
+    }
+
+    p_port = &rfc_cb.port.port[handle - 1];
+
+    if (!p_port->in_use || (p_port->state == PORT_STATE_CLOSED))
+    {
+        return (PORT_NOT_OPENED);
+    }
+
+    if (!p_port->rfc.p_mcb)
+    {
+        return (PORT_NOT_OPENED);
+    }
+
+    p_port->rx.user_fc = !enable;
+
+    if (p_port->rfc.p_mcb->flow == PORT_FC_CREDIT)
+    {
+        if (!p_port->rx.user_fc)
+        {
+            port_flow_control_peer(p_port, TRUE, 0);
+        }
+    }
+    else
+    {
+        old_fc = p_port->local_ctrl.fc;
+
+        /* FC is set if user is set or peer is set */
+        p_port->local_ctrl.fc = (p_port->rx.user_fc | p_port->rx.peer_fc);
+
+        if (p_port->local_ctrl.fc != old_fc)
+            port_start_control (p_port);
+    }
+
+    /* Need to take care of the case when we could not deliver events */
+    /* to the application because we were flow controlled */
+    if (enable && (p_port->rx.queue_size != 0))
+    {
+        events = PORT_EV_RXCHAR;
+        if (p_port->rx_flag_ev_pending)
+        {
+            p_port->rx_flag_ev_pending = FALSE;
+            events |= PORT_EV_RXFLAG;
+        }
+
+        events &= p_port->ev_mask;
+        if (p_port->p_callback && events)
+        {
+            p_port->p_callback (events, p_port->inx);
+        }
+    }
+    return (PORT_SUCCESS);
+}
+/*******************************************************************************
+**
+** Function         PORT_FlowControl_MaxCredit
+**
+** Description      This function directs a specified connection to pass
+**                  flow control message to the peer device.  Enable flag passed
+**                  shows if port can accept more data. It also sends max credit
+**                  when data flow enabled
+**
+** Parameters:      handle     - Handle returned in the RFCOMM_CreateConnection
+**                  enable     - enables data flow
+**
+*******************************************************************************/
+
+int PORT_FlowControl_MaxCredit (UINT16 handle, BOOLEAN enable)
+{
+    tPORT      *p_port;
+    BOOLEAN    old_fc;
+    UINT32     events;
+
+    RFCOMM_TRACE_API ("PORT_FlowControl() handle:%d enable: %d", handle, enable);
+
+    /* Check if handle is valid to avoid crashing */
+    if ((handle == 0) || (handle > MAX_RFC_PORTS))
+    {
+        return (PORT_BAD_HANDLE);
+    }
+
+    p_port = &rfc_cb.port.port[handle - 1];
+
+    if (!p_port->in_use || (p_port->state == PORT_STATE_CLOSED))
+    {
+        return (PORT_NOT_OPENED);
+    }
+
+    if (!p_port->rfc.p_mcb)
+    {
+        return (PORT_NOT_OPENED);
+    }
+
+    p_port->rx.user_fc = !enable;
+
+    if (p_port->rfc.p_mcb->flow == PORT_FC_CREDIT)
+    {
+        if (!p_port->rx.user_fc)
+        {
+            port_flow_control_peer(p_port, TRUE, p_port->credit_rx);
+        }
+    }
+    else
+    {
+        old_fc = p_port->local_ctrl.fc;
+
+        /* FC is set if user is set or peer is set */
+        p_port->local_ctrl.fc = (p_port->rx.user_fc | p_port->rx.peer_fc);
+
+        if (p_port->local_ctrl.fc != old_fc)
+            port_start_control (p_port);
+    }
+
+    /* Need to take care of the case when we could not deliver events */
+    /* to the application because we were flow controlled */
+    if (enable && (p_port->rx.queue_size != 0))
+    {
+        events = PORT_EV_RXCHAR;
+        if (p_port->rx_flag_ev_pending)
+        {
+            p_port->rx_flag_ev_pending = FALSE;
+            events |= PORT_EV_RXFLAG;
+        }
+
+        events &= p_port->ev_mask;
+        if (p_port->p_callback && events)
+        {
+            p_port->p_callback (events, p_port->inx);
+        }
+    }
+    return (PORT_SUCCESS);
+}
+
+/*******************************************************************************
+**
+** Function         PORT_GetModemStatus
+**
+** Description      This function retrieves modem control signals.  Normally
+**                  application will call this function after a callback
+**                  function is called with notification that one of signals
+**                  has been changed.
+**
+** Parameters:      handle     - Handle returned in the RFCOMM_CreateConnection
+**                  p_signal   - specify the pointer to control signals info
+**
+*******************************************************************************/
+int PORT_GetModemStatus (UINT16 handle, UINT8 *p_signal)
+{
+    tPORT      *p_port;
+
+    if ((handle == 0) || (handle > MAX_RFC_PORTS))
+    {
+        return (PORT_BAD_HANDLE);
+    }
+
+    p_port = &rfc_cb.port.port[handle - 1];
+
+    if (!p_port->in_use || (p_port->state == PORT_STATE_CLOSED))
+    {
+        return (PORT_NOT_OPENED);
+    }
+
+    *p_signal = p_port->peer_ctrl.modem_signal;
+
+    RFCOMM_TRACE_API ("PORT_GetModemStatus() handle:%d signal:%x", handle, *p_signal);
+
+    return (PORT_SUCCESS);
+}
+
+/*******************************************************************************
+**
+** Function         PORT_ClearError
+**
+** Description      This function retreives information about a communications
+**                  error and reports current status of a connection.  The
+**                  function should be called when an error occures to clear
+**                  the connection error flag and to enable additional read
+**                  and write operations.
+**
+** Parameters:      handle     - Handle returned in the RFCOMM_CreateConnection
+**                  p_errors   - pointer of the variable to receive error codes
+**                  p_status   - pointer to the tPORT_STATUS structur to receive
+**                               connection status
+**
+*******************************************************************************/
+int PORT_ClearError (UINT16 handle, UINT16 *p_errors, tPORT_STATUS *p_status)
+{
+    tPORT  *p_port;
+
+    RFCOMM_TRACE_API ("PORT_ClearError() handle:%d", handle);
+
+    if ((handle == 0) || (handle > MAX_RFC_PORTS))
+    {
+        return (PORT_BAD_HANDLE);
+    }
+
+    p_port = &rfc_cb.port.port[handle - 1];
+
+    if (!p_port->in_use || (p_port->state == PORT_STATE_CLOSED))
+    {
+        return (PORT_NOT_OPENED);
+    }
+
+    *p_errors = p_port->line_status;
+
+    /* This is the only call to clear error status.  We can not clear */
+    /* connection failed status.  To clean it port should be closed and reopened */
+    p_port->line_status = (p_port->line_status & LINE_STATUS_FAILED);
+
+    PORT_GetQueueStatus (handle, p_status);
+    return (PORT_SUCCESS);
+}
+
+/*******************************************************************************
+**
+** Function         PORT_SendError
+**
+** Description      This function send a communications error to the peer device
+**
+** Parameters:      handle     - Handle returned in the RFCOMM_CreateConnection
+**                  errors     - receive error codes
+**
+*******************************************************************************/
+int PORT_SendError (UINT16 handle, UINT8 errors)
+{
+    tPORT      *p_port;
+
+    RFCOMM_TRACE_API ("PORT_SendError() handle:%d errors:0x%x", handle, errors);
+
+    if ((handle == 0) || (handle > MAX_RFC_PORTS))
+    {
+        return (PORT_BAD_HANDLE);
+    }
+
+    p_port = &rfc_cb.port.port[handle - 1];
+
+    if (!p_port->in_use || (p_port->state == PORT_STATE_CLOSED))
+    {
+        return (PORT_NOT_OPENED);
+    }
+
+    if (!p_port->rfc.p_mcb)
+    {
+        return (PORT_NOT_OPENED);
+    }
+
+    RFCOMM_LineStatusReq (p_port->rfc.p_mcb, p_port->dlci, errors);
+    return (PORT_SUCCESS);
+}
+
+/*******************************************************************************
+**
+** Function         PORT_GetQueueStatus
+**
+** Description      This function reports current status of a connection.
+**
+** Parameters:      handle     - Handle returned in the RFCOMM_CreateConnection
+**                  p_status   - pointer to the tPORT_STATUS structur to receive
+**                               connection status
+**
+*******************************************************************************/
+int PORT_GetQueueStatus (UINT16 handle, tPORT_STATUS *p_status)
+{
+    tPORT      *p_port;
+
+    /* RFCOMM_TRACE_API ("PORT_GetQueueStatus() handle:%d", handle); */
+
+    if ((handle == 0) || (handle > MAX_RFC_PORTS))
+    {
+        return (PORT_BAD_HANDLE);
+    }
+
+    p_port = &rfc_cb.port.port[handle - 1];
+
+    if (!p_port->in_use || (p_port->state == PORT_STATE_CLOSED))
+    {
+        return (PORT_NOT_OPENED);
+    }
+
+    p_status->in_queue_size  = (UINT16) p_port->rx.queue_size;
+    p_status->out_queue_size = (UINT16) p_port->tx.queue_size;
+
+    p_status->mtu_size = (UINT16) p_port->peer_mtu;
+
+    p_status->flags = 0;
+
+    if (!(p_port->peer_ctrl.modem_signal & PORT_CTSRTS_ON))
+        p_status->flags |= PORT_FLAG_CTS_HOLD;
+
+    if (!(p_port->peer_ctrl.modem_signal & PORT_DTRDSR_ON))
+        p_status->flags |= PORT_FLAG_DSR_HOLD;
+
+    if (!(p_port->peer_ctrl.modem_signal & PORT_DCD_ON))
+        p_status->flags |= PORT_FLAG_RLSD_HOLD;
+
+    return (PORT_SUCCESS);
+}
+
+/*******************************************************************************
+**
+** Function         PORT_Purge
+**
+** Description      This function discards all the data from the output or
+**                  input queues of the specified connection.
+**
+** Parameters:      handle     - Handle returned in the RFCOMM_CreateConnection
+**                  purge_flags - specify the action to take.
+**
+*******************************************************************************/
+int PORT_Purge (UINT16 handle, UINT8 purge_flags)
+{
+    tPORT      *p_port;
+    BT_HDR     *p_buf;
+    UINT16      count;
+    UINT32     events;
+
+    RFCOMM_TRACE_API ("PORT_Purge() handle:%d flags:0x%x", handle, purge_flags);
+
+    /* Check if handle is valid to avoid crashing */
+    if ((handle == 0) || (handle > MAX_RFC_PORTS))
+    {
+        return (PORT_BAD_HANDLE);
+    }
+
+    p_port = &rfc_cb.port.port[handle - 1];
+
+    if (!p_port->in_use || (p_port->state == PORT_STATE_CLOSED))
+    {
+        return (PORT_NOT_OPENED);
+    }
+
+    if (purge_flags & PORT_PURGE_RXCLEAR)
+    {
+        mutex_global_lock();    /* to prevent missing credit */
+
+        count = fixed_queue_length(p_port->rx.queue);
+
+        while ((p_buf = (BT_HDR *)fixed_queue_try_dequeue(p_port->rx.queue)) != NULL)
+            osi_free(p_buf);
+
+        p_port->rx.queue_size = 0;
+
+        mutex_global_unlock();
+
+        /* If we flowed controlled peer based on rx_queue size enable data again */
+        if (count)
+            port_flow_control_peer (p_port, TRUE, count);
+    }
+
+    if (purge_flags & PORT_PURGE_TXCLEAR)
+    {
+        mutex_global_lock(); /* to prevent tx.queue_size from being negative */
+
+        while ((p_buf = (BT_HDR *)fixed_queue_try_dequeue(p_port->tx.queue)) != NULL)
+            osi_free(p_buf);
+
+        p_port->tx.queue_size = 0;
+
+        mutex_global_unlock();
+
+        events = PORT_EV_TXEMPTY;
+
+        events |= port_flow_control_user (p_port);
+
+        events &= p_port->ev_mask;
+
+        if ((p_port->p_callback != NULL) && events)
+            (p_port->p_callback)(events, p_port->inx);
+    }
+
+    return (PORT_SUCCESS);
+}
+
+/*******************************************************************************
+**
+** Function         PORT_ReadData
+**
+** Description      Normally not GKI aware application will call this function
+**                  after receiving PORT_EV_RXCHAR event.
+**
+** Parameters:      handle     - Handle returned in the RFCOMM_CreateConnection
+**                  p_data      - Data area
+**                  max_len     - Byte count requested
+**                  p_len       - Byte count received
+**
+*******************************************************************************/
+int PORT_ReadData (UINT16 handle, char *p_data, UINT16 max_len, UINT16 *p_len)
+{
+    tPORT      *p_port;
+    BT_HDR     *p_buf;
+    UINT16      count;
+
+    RFCOMM_TRACE_API ("PORT_ReadData() handle:%d max_len:%d", handle, max_len);
+
+    /* Initialize this in case of an error */
+    *p_len = 0;
+
+    /* Check if handle is valid to avoid crashing */
+    if ((handle == 0) || (handle > MAX_RFC_PORTS))
+    {
+        return (PORT_BAD_HANDLE);
+    }
+
+    p_port = &rfc_cb.port.port[handle - 1];
+
+    if (!p_port->in_use || (p_port->state == PORT_STATE_CLOSED))
+    {
+        return (PORT_NOT_OPENED);
+    }
+
+    if (p_port->line_status)
+    {
+        return (PORT_LINE_ERR);
+    }
+
+    if (fixed_queue_is_empty(p_port->rx.queue))
+        return (PORT_SUCCESS);
+
+    count = 0;
+
+    while (max_len)
+    {
+        p_buf = (BT_HDR *)fixed_queue_try_peek_first(p_port->rx.queue);
+        if (p_buf == NULL)
+            break;
+
+        if (p_buf->len > max_len)
+        {
+            memcpy (p_data, (UINT8 *)(p_buf + 1) + p_buf->offset, max_len);
+            p_buf->offset += max_len;
+            p_buf->len    -= max_len;
+
+            *p_len += max_len;
+
+            mutex_global_lock();
+
+            p_port->rx.queue_size -= max_len;
+
+            mutex_global_unlock();
+
+            break;
+        }
+        else
+        {
+            memcpy (p_data, (UINT8 *)(p_buf + 1) + p_buf->offset, p_buf->len);
+
+            *p_len  += p_buf->len;
+            max_len -= p_buf->len;
+
+            mutex_global_lock();
+
+            p_port->rx.queue_size -= p_buf->len;
+
+            if (max_len)
+            {
+                p_data  += p_buf->len;
+            }
+
+            osi_free(fixed_queue_try_dequeue(p_port->rx.queue));
+
+            mutex_global_unlock();
+
+            count++;
+        }
+    }
+
+    if (*p_len == 1)
+    {
+        RFCOMM_TRACE_EVENT ("PORT_ReadData queue:%d returned:%d %x", p_port->rx.queue_size, *p_len, (p_data[0]));
+    }
+    else
+    {
+        RFCOMM_TRACE_EVENT ("PORT_ReadData queue:%d returned:%d", p_port->rx.queue_size, *p_len);
+    }
+
+    /* If rfcomm suspended traffic from the peer based on the rx_queue_size */
+    /* check if it can be resumed now */
+    port_flow_control_peer (p_port, TRUE, count);
+
+    return (PORT_SUCCESS);
+}
+
+/*******************************************************************************
+**
+** Function         PORT_Read
+**
+** Description      Normally application will call this function after receiving
+**                  PORT_EV_RXCHAR event.
+**
+** Parameters:      handle     - Handle returned in the RFCOMM_CreateConnection
+**                  pp_buf      - pointer to address of buffer with data,
+**
+*******************************************************************************/
+int PORT_Read (UINT16 handle, BT_HDR **pp_buf)
+{
+    tPORT      *p_port;
+    BT_HDR     *p_buf;
+
+    RFCOMM_TRACE_API ("PORT_Read() handle:%d", handle);
+
+    /* Check if handle is valid to avoid crashing */
+    if ((handle == 0) || (handle > MAX_RFC_PORTS))
+    {
+        return (PORT_BAD_HANDLE);
+    }
+    p_port = &rfc_cb.port.port[handle - 1];
+
+    if (!p_port->in_use || (p_port->state == PORT_STATE_CLOSED))
+    {
+        return (PORT_NOT_OPENED);
+    }
+
+    if (p_port->line_status)
+    {
+        return (PORT_LINE_ERR);
+    }
+
+    mutex_global_lock();
+
+    p_buf = (BT_HDR *)fixed_queue_try_dequeue(p_port->rx.queue);
+    if (p_buf)
+    {
+        p_port->rx.queue_size -= p_buf->len;
+
+        mutex_global_unlock();
+
+        /* If rfcomm suspended traffic from the peer based on the rx_queue_size */
+        /* check if it can be resumed now */
+        port_flow_control_peer (p_port, TRUE, 1);
+    }
+    else
+    {
+        mutex_global_unlock();
+    }
+
+    *pp_buf = p_buf;
+    return (PORT_SUCCESS);
+}
+
+/*******************************************************************************
+**
+** Function         port_write
+**
+** Description      This function when a data packet is received from the apper
+**                  layer task.
+**
+** Parameters:      p_port     - pointer to address of port control block
+**                  p_buf      - pointer to address of buffer with data,
+**
+*******************************************************************************/
+static int port_write (tPORT *p_port, BT_HDR *p_buf)
+{
+    /* We should not allow to write data in to server port when connection is not opened */
+    if (p_port->is_server && (p_port->rfc.state != RFC_STATE_OPENED))
+    {
+        osi_free(p_buf);
+        return (PORT_CLOSED);
+    }
+
+    /* Keep the data in pending queue if peer does not allow data, or */
+    /* Peer is not ready or Port is not yet opened or initial port control */
+    /* command has not been sent */
+    if (p_port->tx.peer_fc
+     || !p_port->rfc.p_mcb
+     || !p_port->rfc.p_mcb->peer_ready
+     || (p_port->rfc.state != RFC_STATE_OPENED)
+     || ((p_port->port_ctrl & (PORT_CTRL_REQ_SENT | PORT_CTRL_IND_RECEIVED)) !=
+                              (PORT_CTRL_REQ_SENT | PORT_CTRL_IND_RECEIVED)))
+    {
+        if ((p_port->tx.queue_size  > PORT_TX_CRITICAL_WM)
+         || (fixed_queue_length(p_port->tx.queue) > PORT_TX_BUF_CRITICAL_WM))
+        {
+            RFCOMM_TRACE_WARNING ("PORT_Write: Queue size: %d",
+                                   p_port->tx.queue_size);
+
+            osi_free(p_buf);
+
+            if ((p_port->p_callback != NULL) && (p_port->ev_mask & PORT_EV_ERR))
+                  p_port->p_callback (PORT_EV_ERR, p_port->inx);
+
+            return (PORT_TX_FULL);
+        }
+
+        RFCOMM_TRACE_EVENT ("PORT_Write : Data is enqued. flow disabled %d peer_ready %d state %d ctrl_state %x",
+                             p_port->tx.peer_fc,
+                             (p_port->rfc.p_mcb && p_port->rfc.p_mcb->peer_ready),
+                             p_port->rfc.state,
+                             p_port->port_ctrl);
+
+        fixed_queue_enqueue(p_port->tx.queue, p_buf);
+        p_port->tx.queue_size += p_buf->len;
+
+        return (PORT_CMD_PENDING);
+    }
+    else
+    {
+        RFCOMM_TRACE_EVENT ("PORT_Write : Data is being sent");
+
+        RFCOMM_DataReq (p_port->rfc.p_mcb, p_port->dlci, p_buf);
+        return (PORT_SUCCESS);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         PORT_Write
+**
+** Description      This function when a data packet is received from the apper
+**                  layer task.
+**
+** Parameters:      handle     - Handle returned in the RFCOMM_CreateConnection
+**                  pp_buf      - pointer to address of buffer with data,
+**
+*******************************************************************************/
+int PORT_Write (UINT16 handle, BT_HDR *p_buf)
+{
+    tPORT  *p_port;
+    UINT32 event = 0;
+    int    rc;
+
+    RFCOMM_TRACE_API ("PORT_Write() handle:%d", handle);
+
+    /* Check if handle is valid to avoid crashing */
+    if ((handle == 0) || (handle > MAX_RFC_PORTS))
+    {
+        osi_free(p_buf);
+        return (PORT_BAD_HANDLE);
+    }
+
+    p_port = &rfc_cb.port.port[handle - 1];
+
+    if (!p_port->in_use || (p_port->state == PORT_STATE_CLOSED))
+    {
+        osi_free(p_buf);
+        return (PORT_NOT_OPENED);
+    }
+
+    if (p_port->line_status)
+    {
+        RFCOMM_TRACE_WARNING ("PORT_Write: Data dropped line_status:0x%x",
+                               p_port->line_status);
+        osi_free(p_buf);
+        return (PORT_LINE_ERR);
+    }
+
+    rc = port_write (p_port, p_buf);
+    event |= port_flow_control_user (p_port);
+
+    switch (rc)
+    {
+    case PORT_TX_FULL:
+        event |= PORT_EV_ERR;
+        break;
+
+    case PORT_SUCCESS:
+        event |= (PORT_EV_TXCHAR | PORT_EV_TXEMPTY);
+        break;
+    }
+    /* Mask out all events that are not of interest to user */
+    event &= p_port->ev_mask;
+
+    /* Send event to the application */
+    if (p_port->p_callback && event)
+        (p_port->p_callback)(event, p_port->inx);
+
+    return (PORT_SUCCESS);
+}
+/*******************************************************************************
+**
+** Function         PORT_WriteDataCO
+**
+** Description      Normally not GKI aware application will call this function
+**                  to send data to the port by callout functions
+**
+** Parameters:      handle     - Handle returned in the RFCOMM_CreateConnection
+**                  fd         - socket fd
+**                  p_len      - Byte count returned
+**
+*******************************************************************************/
+int PORT_WriteDataCO (UINT16 handle, int* p_len)
+{
+
+    tPORT      *p_port;
+    BT_HDR     *p_buf;
+    UINT32     event = 0;
+    int        rc = 0;
+    UINT16     length;
+
+    RFCOMM_TRACE_API ("PORT_WriteDataCO() handle:%d", handle);
+    *p_len = 0;
+
+    /* Check if handle is valid to avoid crashing */
+    if ((handle == 0) || (handle > MAX_RFC_PORTS))
+    {
+        return (PORT_BAD_HANDLE);
+    }
+    p_port = &rfc_cb.port.port[handle - 1];
+
+    if (!p_port->in_use || (p_port->state == PORT_STATE_CLOSED))
+    {
+        RFCOMM_TRACE_WARNING ("PORT_WriteDataByFd() no port state:%d", p_port->state);
+        return (PORT_NOT_OPENED);
+    }
+
+    if (!p_port->peer_mtu)
+    {
+        RFCOMM_TRACE_ERROR ("PORT_WriteDataByFd() peer_mtu:%d", p_port->peer_mtu);
+        return (PORT_UNKNOWN_ERROR);
+    }
+    int available = 0;
+    //if(ioctl(fd, FIONREAD, &available) < 0)
+    if(p_port->p_data_co_callback(handle, (UINT8*)&available, sizeof(available),
+                                DATA_CO_CALLBACK_TYPE_OUTGOING_SIZE) == FALSE)
+    {
+        RFCOMM_TRACE_ERROR("p_data_co_callback DATA_CO_CALLBACK_TYPE_INCOMING_SIZE failed, available:%d", available);
+        return (PORT_UNKNOWN_ERROR);
+    }
+    if(available == 0)
+        return PORT_SUCCESS;
+    /* Length for each buffer is the smaller of GKI buffer, peer MTU, or max_len */
+    length = RFCOMM_DATA_BUF_SIZE -
+            (UINT16)(sizeof(BT_HDR) + L2CAP_MIN_OFFSET + RFCOMM_DATA_OVERHEAD);
+
+    /* If there are buffers scheduled for transmission check if requested */
+    /* data fits into the end of the queue */
+    mutex_global_lock();
+
+    if (((p_buf = (BT_HDR *)fixed_queue_try_peek_last(p_port->tx.queue)) != NULL)
+     && (((int)p_buf->len + available) <= (int)p_port->peer_mtu)
+     && (((int)p_buf->len + available) <= (int)length))
+    {
+        //if(recv(fd, (UINT8 *)(p_buf + 1) + p_buf->offset + p_buf->len, available, 0) != available)
+        if(p_port->p_data_co_callback(handle, (UINT8 *)(p_buf + 1) + p_buf->offset + p_buf->len,
+                                    available, DATA_CO_CALLBACK_TYPE_OUTGOING) == FALSE)
+
+        {
+            error("p_data_co_callback DATA_CO_CALLBACK_TYPE_OUTGOING failed, available:%d", available);
+            mutex_global_unlock();
+            return (PORT_UNKNOWN_ERROR);
+        }
+        //memcpy ((UINT8 *)(p_buf + 1) + p_buf->offset + p_buf->len, p_data, max_len);
+        p_port->tx.queue_size += (UINT16)available;
+
+        *p_len = available;
+        p_buf->len += (UINT16)available;
+
+        mutex_global_unlock();
+
+        return (PORT_SUCCESS);
+    }
+
+    mutex_global_unlock();
+
+    //int max_read = length < p_port->peer_mtu ? length : p_port->peer_mtu;
+
+    //max_read = available < max_read ? available : max_read;
+
+    while (available)
+    {
+        /* if we're over buffer high water mark, we're done */
+        if ((p_port->tx.queue_size  > PORT_TX_HIGH_WM)
+         || (fixed_queue_length(p_port->tx.queue) > PORT_TX_BUF_HIGH_WM))
+        {
+            port_flow_control_user(p_port);
+            event |= PORT_EV_FC;
+            RFCOMM_TRACE_EVENT ("tx queue is full,tx.queue_size:%d,tx.queue.count:%d,available:%d",
+                    p_port->tx.queue_size, fixed_queue_length(p_port->tx.queue), available);
+            break;
+         }
+
+        /* continue with rfcomm data write */
+        p_buf = (BT_HDR *)osi_malloc(RFCOMM_DATA_BUF_SIZE);
+        p_buf->offset         = L2CAP_MIN_OFFSET + RFCOMM_MIN_OFFSET;
+        p_buf->layer_specific = handle;
+
+        if (p_port->peer_mtu < length)
+            length = p_port->peer_mtu;
+        if (available < (int)length)
+            length = (UINT16)available;
+        p_buf->len = length;
+        p_buf->event          = BT_EVT_TO_BTU_SP_DATA;
+
+        //memcpy ((UINT8 *)(p_buf + 1) + p_buf->offset, p_data, length);
+        //if(recv(fd, (UINT8 *)(p_buf + 1) + p_buf->offset, (int)length, 0) != (int)length)
+        if(p_port->p_data_co_callback(handle, (UINT8 *)(p_buf + 1) + p_buf->offset, length,
+                                      DATA_CO_CALLBACK_TYPE_OUTGOING) == FALSE)
+        {
+            error("p_data_co_callback DATA_CO_CALLBACK_TYPE_OUTGOING failed, length:%d", length);
+            return (PORT_UNKNOWN_ERROR);
+        }
+
+        RFCOMM_TRACE_EVENT ("PORT_WriteData %d bytes", length);
+
+        rc = port_write (p_port, p_buf);
+
+        /* If queue went below the threashold need to send flow control */
+        event |= port_flow_control_user (p_port);
+
+        if (rc == PORT_SUCCESS)
+            event |= PORT_EV_TXCHAR;
+
+        if ((rc != PORT_SUCCESS) && (rc != PORT_CMD_PENDING))
+            break;
+
+        *p_len  += length;
+        available -= (int)length;
+    }
+    if (!available && (rc != PORT_CMD_PENDING) && (rc != PORT_TX_QUEUE_DISABLED))
+        event |= PORT_EV_TXEMPTY;
+
+    /* Mask out all events that are not of interest to user */
+    event &= p_port->ev_mask;
+
+    /* Send event to the application */
+    if (p_port->p_callback && event)
+        (p_port->p_callback)(event, p_port->inx);
+
+    return (PORT_SUCCESS);
+}
+
+/*******************************************************************************
+**
+** Function         PORT_WriteData
+**
+** Description      Normally not GKI aware application will call this function
+**                  to send data to the port.
+**
+** Parameters:      handle     - Handle returned in the RFCOMM_CreateConnection
+**                  p_data      - Data area
+**                  max_len     - Byte count requested
+**                  p_len       - Byte count received
+**
+*******************************************************************************/
+int PORT_WriteData (UINT16 handle, char *p_data, UINT16 max_len, UINT16 *p_len)
+{
+    tPORT      *p_port;
+    BT_HDR     *p_buf;
+    UINT32     event = 0;
+    int        rc = 0;
+    UINT16     length;
+
+    RFCOMM_TRACE_API ("PORT_WriteData() max_len:%d", max_len);
+
+    *p_len = 0;
+
+    /* Check if handle is valid to avoid crashing */
+    if ((handle == 0) || (handle > MAX_RFC_PORTS))
+    {
+        return (PORT_BAD_HANDLE);
+    }
+    p_port = &rfc_cb.port.port[handle - 1];
+
+    if (!p_port->in_use || (p_port->state == PORT_STATE_CLOSED))
+    {
+        RFCOMM_TRACE_WARNING ("PORT_WriteData() no port state:%d", p_port->state);
+        return (PORT_NOT_OPENED);
+    }
+
+    if (!max_len || !p_port->peer_mtu)
+    {
+        RFCOMM_TRACE_ERROR ("PORT_WriteData() peer_mtu:%d", p_port->peer_mtu);
+        return (PORT_UNKNOWN_ERROR);
+    }
+
+    /* Length for each buffer is the smaller of GKI buffer, peer MTU, or max_len */
+    length = RFCOMM_DATA_BUF_SIZE -
+            (UINT16)(sizeof(BT_HDR) + L2CAP_MIN_OFFSET + RFCOMM_DATA_OVERHEAD);
+
+    /* If there are buffers scheduled for transmission check if requested */
+    /* data fits into the end of the queue */
+    mutex_global_lock();
+
+    if (((p_buf = (BT_HDR *)fixed_queue_try_peek_last(p_port->tx.queue)) != NULL)
+     && ((p_buf->len + max_len) <= p_port->peer_mtu)
+     && ((p_buf->len + max_len) <= length))
+    {
+        memcpy ((UINT8 *)(p_buf + 1) + p_buf->offset + p_buf->len, p_data, max_len);
+        p_port->tx.queue_size += max_len;
+
+        *p_len = max_len;
+        p_buf->len += max_len;
+
+        mutex_global_unlock();
+
+        return (PORT_SUCCESS);
+    }
+
+    mutex_global_unlock();
+
+    while (max_len)
+    {
+        /* if we're over buffer high water mark, we're done */
+        if ((p_port->tx.queue_size  > PORT_TX_HIGH_WM)
+         || (fixed_queue_length(p_port->tx.queue) > PORT_TX_BUF_HIGH_WM))
+            break;
+
+        /* continue with rfcomm data write */
+        p_buf = (BT_HDR *)osi_malloc(RFCOMM_DATA_BUF_SIZE);
+        p_buf->offset         = L2CAP_MIN_OFFSET + RFCOMM_MIN_OFFSET;
+        p_buf->layer_specific = handle;
+
+        if (p_port->peer_mtu < length)
+            length = p_port->peer_mtu;
+        if (max_len < length)
+            length = max_len;
+        p_buf->len = length;
+        p_buf->event          = BT_EVT_TO_BTU_SP_DATA;
+
+        memcpy ((UINT8 *)(p_buf + 1) + p_buf->offset, p_data, length);
+
+        RFCOMM_TRACE_EVENT ("PORT_WriteData %d bytes", length);
+
+        rc = port_write (p_port, p_buf);
+
+        /* If queue went below the threashold need to send flow control */
+        event |= port_flow_control_user (p_port);
+
+        if (rc == PORT_SUCCESS)
+            event |= PORT_EV_TXCHAR;
+
+        if ((rc != PORT_SUCCESS) && (rc != PORT_CMD_PENDING))
+            break;
+
+        *p_len  += length;
+        max_len -= length;
+        p_data  += length;
+
+    }
+    if (!max_len && (rc != PORT_CMD_PENDING) && (rc != PORT_TX_QUEUE_DISABLED))
+        event |= PORT_EV_TXEMPTY;
+
+    /* Mask out all events that are not of interest to user */
+    event &= p_port->ev_mask;
+
+    /* Send event to the application */
+    if (p_port->p_callback && event)
+        (p_port->p_callback)(event, p_port->inx);
+
+    return (PORT_SUCCESS);
+}
+
+/*******************************************************************************
+**
+** Function         PORT_Test
+**
+** Description      Application can call this function to send RFCOMM Test frame
+**
+** Parameters:      handle      - Handle returned in the RFCOMM_CreateConnection
+**                  p_data      - Data area
+**                  max_len     - Byte count requested
+**
+*******************************************************************************/
+int PORT_Test (UINT16 handle, UINT8 *p_data, UINT16 len)
+{
+    tPORT    *p_port;
+
+    RFCOMM_TRACE_API ("PORT_Test() len:%d", len);
+
+    if ((handle == 0) || (handle > MAX_RFC_PORTS))
+    {
+        return (PORT_BAD_HANDLE);
+    }
+    p_port = &rfc_cb.port.port[handle - 1];
+
+    if (!p_port->in_use || (p_port->state == PORT_STATE_CLOSED))
+    {
+        return (PORT_NOT_OPENED);
+    }
+
+    if (len > ((p_port->mtu == 0) ? RFCOMM_DEFAULT_MTU : p_port->mtu))
+    {
+        return (PORT_UNKNOWN_ERROR);
+    }
+
+    BT_HDR *p_buf = (BT_HDR *)osi_malloc(RFCOMM_CMD_BUF_SIZE);
+    p_buf->offset  = L2CAP_MIN_OFFSET + RFCOMM_MIN_OFFSET + 2;
+    p_buf->len = len;
+
+    memcpy((UINT8 *)(p_buf + 1) + p_buf->offset, p_data, p_buf->len);
+
+    rfc_send_test(p_port->rfc.p_mcb, TRUE, p_buf);
+
+    return (PORT_SUCCESS);
+}
+
+/*******************************************************************************
+**
+** Function         RFCOMM_Init
+**
+** Description      This function is called to initialize RFCOMM layer
+**
+*******************************************************************************/
+void RFCOMM_Init (void)
+{
+    memset (&rfc_cb, 0, sizeof (tRFC_CB));  /* Init RFCOMM control block */
+
+    rfc_cb.rfc.last_mux = MAX_BD_CONNECTIONS;
+
+#if defined(RFCOMM_INITIAL_TRACE_LEVEL)
+    rfc_cb.trace_level = RFCOMM_INITIAL_TRACE_LEVEL;
+#else
+    rfc_cb.trace_level = BT_TRACE_LEVEL_NONE;    /* No traces */
+#endif
+
+    rfcomm_l2cap_if_init ();
+}
+
+/*******************************************************************************
+**
+** Function         PORT_SetTraceLevel
+**
+** Description      This function sets the trace level for RFCOMM. If called with
+**                  a value of 0xFF, it simply reads the current trace level.
+**
+** Returns          the new (current) trace level
+**
+*******************************************************************************/
+UINT8 PORT_SetTraceLevel (UINT8 new_level)
+{
+    if (new_level != 0xFF)
+        rfc_cb.trace_level = new_level;
+
+    return (rfc_cb.trace_level);
+}
+
+/*******************************************************************************
+**
+** Function         PORT_GetResultString
+**
+** Description      This function returns the human-readable string for a given
+**                  result code.
+**
+** Returns          a pointer to the human-readable string for the given result.
+**
+*******************************************************************************/
+const char *PORT_GetResultString (const uint8_t result_code) {
+  if (result_code > PORT_ERR_MAX) {
+    return result_code_strings[PORT_ERR_MAX];
+  }
+
+  return result_code_strings[result_code];
+}
diff --git a/rtkbt/code/bt/stack/rfcomm/port_int.h b/rtkbt/code/bt/stack/rfcomm/port_int.h
new file mode 100755
index 0000000..72bdeb1
--- /dev/null
+++ b/rtkbt/code/bt/stack/rfcomm/port_int.h
@@ -0,0 +1,251 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/*****************************************************************************
+ *
+ *  This file contains definitions internal to the PORT unit
+ *
+ *****************************************************************************/
+
+#ifndef PORT_INT_H
+#define PORT_INT_H
+
+#include "bt_target.h"
+#include "osi/include/alarm.h"
+#include "osi/include/fixed_queue.h"
+#include "bt_common.h"
+#include "rfcdefs.h"
+#include "port_api.h"
+
+/* Local events passed when application event is sent from the api to PORT */
+/* ???*/
+#define PORT_EVENT_OPEN         (1  | BT_EVT_TO_BTU_SP_EVT)
+#define PORT_EVENT_CONTROL      (2  | BT_EVT_TO_BTU_SP_EVT)
+#define PORT_EVENT_SET_STATE    (3  | BT_EVT_TO_BTU_SP_EVT)
+#define PORT_EVENT_SET_CALLBACK (5  | BT_EVT_TO_BTU_SP_EVT)
+#define PORT_EVENT_WRITE        (6  | BT_EVT_TO_BTU_SP_EVT)
+#define PORT_EVENT_PURGE        (7  | BT_EVT_TO_BTU_SP_EVT)
+#define PORT_EVENT_SEND_ERROR   (8  | BT_EVT_TO_BTU_SP_EVT)
+#define PORT_EVENT_FLOW_CONTROL (9  | BT_EVT_TO_BTU_SP_EVT)
+
+/*
+** Flow control configuration values for the mux
+*/
+#define PORT_FC_UNDEFINED       0   /* mux flow control mechanism not defined yet */
+#define PORT_FC_TS710           1   /* use TS 07.10 flow control  */
+#define PORT_FC_CREDIT          2   /* use RFCOMM credit based flow control */
+
+/*
+** Define Port Data Transfere control block
+*/
+typedef struct
+{
+    fixed_queue_t *queue;   /* Queue of buffers waiting to be sent */
+    BOOLEAN  peer_fc;       /* TRUE if flow control is set based on peer's request */
+    BOOLEAN  user_fc;       /* TRUE if flow control is set based on user's request  */
+    UINT32   queue_size;    /* Number of data bytes in the queue */
+    tPORT_CALLBACK *p_callback;  /* Address of the callback function */
+} tPORT_DATA;
+
+/*
+** Port control structure used to pass modem info
+*/
+typedef struct
+{
+#define MODEM_SIGNAL_DTRDSR        0x01
+#define MODEM_SIGNAL_RTSCTS        0x02
+#define MODEM_SIGNAL_RI            0x04
+#define MODEM_SIGNAL_DCD           0x08
+
+    UINT8   modem_signal;       /* [DTR/DSR | RTS/CTS | RI | DCD ] */
+
+    UINT8   break_signal;       /* 0-3 s in steps of 200 ms */
+
+    UINT8   discard_buffers;    /* 0 - do not discard, 1 - discard */
+
+#define RFCOMM_CTRL_BREAK_ASAP      0
+#define RFCOMM_CTRL_BREAK_IN_SEQ    1
+
+    UINT8   break_signal_seq;   /* as soon as possible | in sequence (default) */
+
+    BOOLEAN fc;                 /* TRUE when the device is unable to accept frames */
+} tPORT_CTRL;
+
+
+/*
+** RFCOMM multiplexer Control Block
+*/
+typedef struct
+{
+    alarm_t *mcb_timer;       /* MCB timer */
+    fixed_queue_t *cmd_q;     /* Queue for command messages on this mux */
+    UINT8     port_inx[RFCOMM_MAX_DLCI + 1];  /* Array for quick access to  */
+                                              /* tPORT based on dlci        */
+    BD_ADDR   bd_addr;        /* BD ADDR of the peer if initiator */
+    UINT16    lcid;           /* Local cid used for this channel */
+    UINT16    peer_l2cap_mtu; /* Max frame that can be sent to peer L2CAP */
+    UINT8     state;          /* Current multiplexer channel state */
+    UINT8     is_initiator;   /* TRUE if this side sends SABME (dlci=0) */
+    BOOLEAN   local_cfg_sent;
+    BOOLEAN   peer_cfg_rcvd;
+    BOOLEAN   restart_required; /* TRUE if has to restart channel after disc */
+    BOOLEAN   peer_ready;      /* True if other side can accept frames */
+    UINT8     flow;            /* flow control mechanism for this mux */
+    BOOLEAN   l2cap_congested; /* TRUE if L2CAP is congested */
+    BOOLEAN   is_disc_initiator; /* TRUE if initiated disc of port */
+    UINT16    pending_lcid;    /* store LCID for incoming connection while connecting */
+    UINT8     pending_id;      /* store l2cap ID for incoming connection while connecting */
+} tRFC_MCB;
+
+
+/*
+** RFCOMM Port Connection Control Block
+*/
+typedef struct {
+#define RFC_PORT_STATE_IDLE          0
+#define RFC_PORT_STATE_WAIT_START    1
+#define RFC_PORT_STATE_OPENING       2
+#define RFC_PORT_STATE_OPENED        3
+#define RFC_PORT_STATE_CLOSING       4
+
+    UINT8     state;          /* Current state of the connection */
+
+#define RFC_RSP_PN                  0x01
+#define RFC_RSP_RPN_REPLY           0x02
+#define RFC_RSP_RPN                 0x04
+#define RFC_RSP_MSC                 0x08
+#define RFC_RSP_RLS                 0x10
+
+    UINT8    expected_rsp;
+
+    tRFC_MCB *p_mcb;
+
+    alarm_t  *port_timer;
+} tRFC_PORT;
+
+
+/*
+** Define control block containing information about PORT connection
+*/
+typedef struct
+{
+    UINT8   inx;            /* Index of this control block in the port_info array */
+    BOOLEAN in_use;         /* True when structure is allocated */
+
+#define PORT_STATE_CLOSED   0
+#define PORT_STATE_OPENING  1
+#define PORT_STATE_OPENED   2
+#define PORT_STATE_CLOSING  3
+
+    UINT8   state;          /* State of the application */
+
+    UINT8   scn;            /* Service channel number */
+    UINT16  uuid;           /* Service UUID */
+
+    BD_ADDR bd_addr;        /* BD ADDR of the device for the multiplexer channel */
+    BOOLEAN is_server;      /* TRUE if the server application */
+    UINT8   dlci;           /* DLCI of the connection */
+
+    UINT8   error;          /* Last error detected */
+
+    UINT8   line_status;    /* Line status as reported by peer */
+
+    UINT8   default_signal_state; /* Initial signal state depending on uuid */
+
+    UINT16  mtu;            /* Max MTU that port can receive */
+    UINT16  peer_mtu;       /* Max MTU that port can send */
+
+    tPORT_DATA tx;          /* Control block for data from app to peer */
+    tPORT_DATA rx;          /* Control block for data from peer to app */
+
+    tPORT_STATE user_port_pars;  /* Port parameters for user connection */
+    tPORT_STATE peer_port_pars;  /* Port parameters for user connection */
+
+    tPORT_CTRL  local_ctrl;
+    tPORT_CTRL  peer_ctrl;
+
+#define PORT_CTRL_REQ_SENT          0x01
+#define PORT_CTRL_REQ_CONFIRMED     0x02
+#define PORT_CTRL_IND_RECEIVED      0x04
+#define PORT_CTRL_IND_RESPONDED     0x08
+
+    UINT8       port_ctrl;                  /* Modem Status Command  */
+
+    BOOLEAN     rx_flag_ev_pending;         /* RXFLAG Character is received */
+
+    tRFC_PORT   rfc;                        /* RFCOMM port control block */
+
+    UINT32      ev_mask;                    /* Event mask for the callback */
+    tPORT_CALLBACK      *p_callback;        /* Pointer to users callback function */
+    tPORT_CALLBACK      *p_mgmt_callback;   /* Callback function to receive connection up/down */
+    tPORT_DATA_CALLBACK *p_data_callback;   /* Callback function to receive data indications */
+    tPORT_DATA_CO_CALLBACK *p_data_co_callback;   /* Callback function with callouts and flowctrl */
+    UINT16      credit_tx;                  /* Flow control credits for tx path */
+    UINT16      credit_rx;                  /* Flow control credits for rx path, this is */
+                                            /* number of buffers peer is allowed to sent */
+    UINT16      credit_rx_max;              /* Max number of credits we will allow this guy to sent */
+    UINT16      credit_rx_low;              /* Number of credits when we send credit update */
+    UINT16      rx_buf_critical;            /* port receive queue critical watermark level */
+    BOOLEAN     keep_port_handle;           /* TRUE if port is not deallocated when closing */
+                                            /* it is set to TRUE for server when allocating port */
+    UINT16      keep_mtu;                   /* Max MTU that port can receive by server */
+} tPORT;
+
+
+/* Define the PORT/RFCOMM control structure
+*/
+typedef struct
+{
+    tPORT        port[MAX_RFC_PORTS];            /* Port info pool */
+    tRFC_MCB     rfc_mcb[MAX_BD_CONNECTIONS];    /* RFCOMM bd_connections pool */
+} tPORT_CB;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+** Functions provided by the port_utils.c
+*/
+extern tPORT    *port_allocate_port (UINT8 dlci, BD_ADDR bd_addr);
+extern void     port_set_defaults (tPORT *p_port);
+extern void     port_select_mtu (tPORT *p_port);
+extern void     port_release_port (tPORT *p_port);
+extern tPORT    *port_find_mcb_dlci_port (tRFC_MCB *p_mcb, UINT8 dlci);
+extern tRFC_MCB *port_find_mcb (BD_ADDR bd_addr);
+extern tPORT    *port_find_dlci_port (UINT8 dlci);
+extern tPORT    *port_find_port (UINT8 dlci, BD_ADDR bd_addr);
+extern UINT32   port_get_signal_changes (tPORT *p_port, UINT8 old_signals, UINT8 signal);
+extern UINT32   port_flow_control_user (tPORT *p_port);
+extern void     port_flow_control_peer(tPORT *p_port, BOOLEAN enable, UINT16 count);
+
+/*
+** Functions provided by the port_rfc.c
+*/
+extern int  port_open_continue (tPORT *p_port);
+extern void port_start_port_open (tPORT *p_port);
+extern void port_start_par_neg (tPORT *p_port);
+extern void port_start_control (tPORT *p_port);
+extern void port_start_close (tPORT *p_port);
+extern void port_rfc_closed (tPORT *p_port, UINT8 res);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/rtkbt/code/bt/stack/rfcomm/port_rfc.c b/rtkbt/code/bt/stack/rfcomm/port_rfc.c
new file mode 100755
index 0000000..aaad62a
--- /dev/null
+++ b/rtkbt/code/bt/stack/rfcomm/port_rfc.c
@@ -0,0 +1,1121 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This module contains functions for port emulation entity and RFCOMM
+ *  communications
+ *
+ ******************************************************************************/
+#include <string.h>
+
+#include "osi/include/mutex.h"
+
+#include "bt_common.h"
+#include "bt_target.h"
+#include "bt_utils.h"
+#include "btm_api.h"
+#include "btm_int.h"
+#include "port_api.h"
+#include "port_int.h"
+#include "rfc_int.h"
+#include "rfcdefs.h"
+
+/*
+** Local function definitions
+*/
+UINT32 port_rfc_send_tx_data (tPORT *p_port);
+void   port_rfc_closed (tPORT *p_port, UINT8 res);
+void   port_get_credits (tPORT *p_port, UINT8 k);
+
+
+/*******************************************************************************
+**
+** Function         port_open_continue
+**
+** Description      This function is called after security manager completes
+**                  required security checks.
+**
+** Returns          void
+**
+*******************************************************************************/
+int port_open_continue (tPORT *p_port)
+{
+    tRFC_MCB *p_mcb;
+
+    RFCOMM_TRACE_EVENT ("port_open_continue, p_port:%p", p_port);
+
+    /* Check if multiplexer channel has already been established */
+    if ((p_mcb = rfc_alloc_multiplexer_channel (p_port->bd_addr, TRUE)) == NULL)
+    {
+        RFCOMM_TRACE_WARNING ("port_open_continue no mx channel");
+        port_release_port (p_port);
+        return (PORT_NO_RESOURCES);
+    }
+
+    p_port->rfc.p_mcb = p_mcb;
+
+    p_mcb->port_inx[p_port->dlci] = p_port->inx;
+
+    /* Connection is up and we know local and remote features, select MTU */
+    port_select_mtu (p_port);
+
+    if (p_mcb->state == RFC_MX_STATE_CONNECTED)
+    {
+        RFCOMM_ParNegReq (p_mcb, p_port->dlci, p_port->mtu);
+    }
+    else if ((p_mcb->state == RFC_MX_STATE_IDLE)
+           ||(p_mcb->state == RFC_MX_STATE_DISC_WAIT_UA))
+    {
+        /* In RFC_MX_STATE_IDLE state, MX state machine will create connection           */
+        /* In RFC_MX_STATE_DISC_WAIT_UA state, MX state machine will recreate connection */
+        /*    after disconnecting is completed                                           */
+        RFCOMM_StartReq (p_mcb);
+    }
+    else
+    {
+        /* MX state machine ignores RFC_MX_EVENT_START_REQ in these states */
+        /* When it enters RFC_MX_STATE_CONNECTED, it will check any openning ports */
+        RFCOMM_TRACE_DEBUG ("port_open_continue: mx state(%d) mx channel is openning", p_mcb->state);
+    }
+    return (PORT_SUCCESS);
+}
+
+
+/*******************************************************************************
+**
+** Function         port_start_control
+**
+** Description      This function is called in the BTU_TASK context to
+**                  send control information
+**
+** Returns          void
+**
+*******************************************************************************/
+void port_start_control (tPORT *p_port)
+{
+    tRFC_MCB *p_mcb = p_port->rfc.p_mcb;
+
+    if (p_mcb == NULL)
+        return;
+
+    RFCOMM_ControlReq (p_mcb, p_port->dlci, &p_port->local_ctrl);
+}
+
+
+/*******************************************************************************
+**
+** Function         port_start_par_neg
+**
+** Description      This function is called in the BTU_TASK context to
+**                  send configuration information
+**
+** Returns          void
+**
+*******************************************************************************/
+void port_start_par_neg (tPORT *p_port)
+{
+    tRFC_MCB *p_mcb = p_port->rfc.p_mcb;
+
+    if (p_mcb == NULL)
+        return;
+
+    RFCOMM_PortNegReq (p_mcb, p_port->dlci, &p_port->user_port_pars);
+}
+
+
+/*******************************************************************************
+**
+** Function         port_start_close
+**
+** Description      This function is called in the BTU_TASK context to
+**                  release DLC
+**
+** Returns          void
+**
+*******************************************************************************/
+void port_start_close (tPORT *p_port)
+{
+    tRFC_MCB *p_mcb = p_port->rfc.p_mcb;
+    UINT8  old_signals;
+    UINT32 events = 0;
+
+    /* At first indicate to the user that signals on the connection were dropped */
+    p_port->line_status |= LINE_STATUS_FAILED;
+    old_signals = p_port->peer_ctrl.modem_signal;
+
+    p_port->peer_ctrl.modem_signal &= ~(PORT_DTRDSR_ON | PORT_CTSRTS_ON | PORT_DCD_ON);
+
+    events |= port_get_signal_changes (p_port, old_signals, p_port->peer_ctrl.modem_signal);
+
+    if(p_port->ev_mask & PORT_EV_CONNECT_ERR)
+        events |= PORT_EV_CONNECT_ERR;
+
+    if(p_port->ev_mask & PORT_EV_ERR)
+        events |= PORT_EV_ERR;
+
+    if ((p_port->p_callback != NULL) && events)
+        p_port->p_callback (events, p_port->inx);
+
+
+    /* Check if RFCOMM side has been closed while the message was queued */
+    if ((p_mcb == NULL) || (p_port->rfc.state == RFC_STATE_CLOSED))
+    {
+        /* Call management callback function before calling port_release_port() to clear tPort */
+        if (p_port->p_mgmt_callback)
+            p_port->p_mgmt_callback (PORT_CLOSED, p_port->inx);
+
+        port_release_port (p_port);
+    }
+    else
+    {
+        RFCOMM_DlcReleaseReq (p_mcb, p_port->dlci);
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         PORT_StartCnf
+**
+** Description      This function is called from the RFCOMM layer when
+**                  establishing of the multiplexer channel is completed.
+**                  Continue establishing of the connection for all ports that
+**                  are in the OPENING state
+**
+*******************************************************************************/
+void PORT_StartCnf (tRFC_MCB *p_mcb, UINT16 result)
+{
+    tPORT   *p_port;
+    int     i;
+    BOOLEAN no_ports_up = TRUE;
+
+    RFCOMM_TRACE_EVENT ("PORT_StartCnf result:%d", result);
+
+    p_port = &rfc_cb.port.port[0];
+    for (i = 0; i < MAX_RFC_PORTS; i++, p_port++)
+    {
+        if (p_port->rfc.p_mcb == p_mcb)
+        {
+            no_ports_up = FALSE;
+
+            if (result == RFCOMM_SUCCESS)
+                RFCOMM_ParNegReq (p_mcb, p_port->dlci, p_port->mtu);
+            else
+            {
+                RFCOMM_TRACE_WARNING ("PORT_StartCnf failed result:%d", result);
+
+                /* Warning: result is also set to 4 when l2cap connection
+                   fails due to l2cap connect cnf (no_resources) */
+                if( result == HCI_ERR_PAGE_TIMEOUT )
+                    p_port->error = PORT_PAGE_TIMEOUT;
+                else
+                    p_port->error = PORT_START_FAILED;
+
+                rfc_release_multiplexer_channel (p_mcb);
+
+                /* Send event to the application */
+                if (p_port->p_callback && (p_port->ev_mask & PORT_EV_CONNECT_ERR))
+                    (p_port->p_callback)(PORT_EV_CONNECT_ERR, p_port->inx);
+
+                if (p_port->p_mgmt_callback)
+                    p_port->p_mgmt_callback (PORT_START_FAILED, p_port->inx);
+
+                port_release_port (p_port);
+            }
+        }
+    }
+
+    /* There can be a situation when after starting connection, user closes the */
+    /* port, we can catch it here to close multiplexor channel */
+    if (no_ports_up)
+    {
+        rfc_check_mcb_active (p_mcb);
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         PORT_StartInd
+**
+** Description      This function is called from the RFCOMM layer when
+**                  some peer device wants to establish a multiplexer
+**                  connection.  Check if there are any ports open with this
+**                  or not assigned multiplexer.
+**
+*******************************************************************************/
+void PORT_StartInd (tRFC_MCB *p_mcb)
+{
+    tPORT *p_port;
+    int   i;
+
+    RFCOMM_TRACE_EVENT ("PORT_StartInd");
+
+    p_port = &rfc_cb.port.port[0];
+    for (i = 0; i < MAX_RFC_PORTS; i++, p_port++)
+    {
+        if ((p_port->rfc.p_mcb == NULL)
+         || (p_port->rfc.p_mcb == p_mcb))
+        {
+            RFCOMM_TRACE_DEBUG("PORT_StartInd, RFCOMM_StartRsp RFCOMM_SUCCESS: p_mcb:%p", p_mcb);
+            RFCOMM_StartRsp (p_mcb, RFCOMM_SUCCESS);
+            return;
+        }
+    }
+    RFCOMM_StartRsp (p_mcb, RFCOMM_ERROR);
+}
+
+
+/*******************************************************************************
+**
+** Function         PORT_ParNegInd
+**
+** Description      This function is called from the RFCOMM layer to change
+**                  DLCI parameters (currently only MTU is negotiated).
+**                  If can not find the port do not accept the request.
+**                  Otherwise save the MTU size supported by the peer.
+**
+*******************************************************************************/
+void PORT_ParNegInd (tRFC_MCB *p_mcb, UINT8 dlci, UINT16 mtu, UINT8 cl, UINT8 k)
+{
+    tPORT *p_port = port_find_mcb_dlci_port (p_mcb, dlci);
+    UINT8 our_cl;
+    UINT8 our_k;
+
+    RFCOMM_TRACE_EVENT ("PORT_ParNegInd dlci:%d mtu:%d", dlci, mtu);
+
+    if (!p_port)
+    {
+        /* This can be a first request for this port */
+        p_port = port_find_dlci_port (dlci);
+        if (!p_port)
+        {
+            /* If the port cannot be opened, send a DM.  Per Errata 1205 */
+            rfc_send_dm(p_mcb, dlci, FALSE);
+            /* check if this is the last port open, some headsets have
+            problem, they don't disconnect if we send DM */
+            rfc_check_mcb_active( p_mcb );
+            RFCOMM_TRACE_EVENT( "PORT_ParNegInd: port not found" );
+            return;
+        }
+        p_mcb->port_inx[dlci] = p_port->inx;
+    }
+
+    memcpy (p_port->bd_addr, p_mcb->bd_addr, BD_ADDR_LEN);
+
+    /* Connection is up and we know local and remote features, select MTU */
+    port_select_mtu (p_port);
+
+    p_port->rfc.p_mcb   = p_mcb;
+    p_port->mtu         = (p_port->mtu < mtu) ? p_port->mtu : mtu;
+    p_port->peer_mtu    = p_port->mtu;
+
+    /* Negotiate the flow control mechanism.  If flow control mechanism for */
+    /* mux has not been set yet, set it now.  If either we or peer wants TS 07.10, */
+    /* use that.  Otherwise both must want credit based, so use that. If flow is */
+    /* already defined for this mux, we respond with that value. */
+    if (p_mcb->flow == PORT_FC_UNDEFINED)
+    {
+        if ((PORT_FC_DEFAULT == PORT_FC_TS710) || (cl == RFCOMM_PN_CONV_LAYER_TYPE_1))
+        {
+            p_mcb->flow = PORT_FC_TS710;
+        }
+        else
+        {
+            p_mcb->flow = PORT_FC_CREDIT;
+        }
+    }
+
+    /* Regardless of our flow control mechanism, if the PN cl is zero, we must */
+    /* respond with zero.  "A responding implementation must set this field to 14 */
+    /* if (and only if) the PN request was 15."  This could happen if a PN is sent */
+    /* after the DLCI is already established-- the PN in that case must have cl = 0. */
+    /* See RFCOMM spec 5.5.3 */
+    if (cl == RFCOMM_PN_CONV_LAYER_TYPE_1)
+    {
+        our_cl = RFCOMM_PN_CONV_LAYER_TYPE_1;
+        our_k = 0;
+    }
+    else if (p_mcb->flow == PORT_FC_CREDIT)
+    {
+        /* get credits */
+        port_get_credits (p_port, k);
+
+        /* Set convergence layer and number of credits (k) */
+        our_cl = RFCOMM_PN_CONV_LAYER_CBFC_R;
+        our_k = (p_port->credit_rx_max < RFCOMM_K_MAX) ? p_port->credit_rx_max : RFCOMM_K_MAX;
+        p_port->credit_rx = our_k;
+    }
+    else
+    {
+        /* must not be using credit based flow control; use TS 7.10 */
+        our_cl = RFCOMM_PN_CONV_LAYER_TYPE_1;
+        our_k = 0;
+    }
+    RFCOMM_ParNegRsp (p_mcb, dlci, p_port->mtu, our_cl, our_k);
+}
+
+
+/*******************************************************************************
+**
+** Function         PORT_ParNegCnf
+**
+** Description      This function is called from the RFCOMM layer to change
+**                  DLCI parameters (currently only MTU is negotiated).
+**                  Save the MTU size supported by the peer.
+**                  If the confirmation is received during the port opening
+**                  procedure send EstablishRequest to continue.
+**
+*******************************************************************************/
+void PORT_ParNegCnf (tRFC_MCB *p_mcb, UINT8 dlci, UINT16 mtu, UINT8 cl, UINT8 k)
+{
+    tPORT   *p_port = port_find_mcb_dlci_port (p_mcb, dlci);
+
+    RFCOMM_TRACE_EVENT ("PORT_ParNegCnf dlci:%d mtu:%d cl: %d k: %d", dlci, mtu, cl, k);
+
+    if (!p_port)
+        return;
+
+    /* Flow control mechanism not set yet.  Negotiate flow control mechanism. */
+    if (p_mcb->flow == PORT_FC_UNDEFINED)
+    {
+        /* Our stack is configured for TS07.10 and they responded with credit-based. */
+        /* This is illegal-- negotiation fails. */
+        if ((PORT_FC_DEFAULT == PORT_FC_TS710) && (cl == RFCOMM_PN_CONV_LAYER_CBFC_R))
+        {
+            rfc_send_disc (p_mcb, p_port->dlci);
+            rfc_port_closed (p_port);
+            return;
+        }
+        /* Our stack is configured for credit-based and they responded with credit-based. */
+        else if (cl == RFCOMM_PN_CONV_LAYER_CBFC_R)
+        {
+            p_mcb->flow = PORT_FC_CREDIT;
+        }
+        /* They responded with any other value.  Treat this as negotiation to TS07.10. */
+        else
+        {
+            p_mcb->flow = PORT_FC_TS710;
+        }
+    }
+    /* If mux flow control mechanism set, we honor that setting regardless of */
+    /* the CL value in their response.  This allows us to gracefully accept any */
+    /* illegal PN negotiation scenarios. */
+
+    p_port->mtu         = (p_port->mtu < mtu) ? p_port->mtu : mtu;
+    p_port->peer_mtu    = p_port->mtu;
+
+    if (p_mcb->flow == PORT_FC_CREDIT)
+    {
+        port_get_credits (p_port, k);
+    }
+
+    if (p_port->state == PORT_STATE_OPENING)
+        RFCOMM_DlcEstablishReq (p_mcb, p_port->dlci, p_port->mtu);
+}
+
+
+/*******************************************************************************
+**
+** Function         PORT_DlcEstablishInd
+**
+** Description      This function is called from the RFCOMM layer when peer
+**                  device wants to establish a new DLC.  If this is not the
+**                  first message in the establishment procedure port_handle
+**                  has a handle to the port control block otherwise the control
+**                  block should be found based on the muliplexer channel and
+**                  dlci.  The block should be allocated allocated before
+**                  meaning that application already made open.
+**
+*******************************************************************************/
+void PORT_DlcEstablishInd (tRFC_MCB *p_mcb, UINT8 dlci, UINT16 mtu)
+{
+    tPORT *p_port = port_find_mcb_dlci_port (p_mcb, dlci);
+
+    RFCOMM_TRACE_DEBUG ("PORT_DlcEstablishInd p_mcb:%p, dlci:%d mtu:%di, p_port:%p", p_mcb, dlci, mtu, p_port);
+    RFCOMM_TRACE_DEBUG ("PORT_DlcEstablishInd p_mcb addr:%02x:%02x:%02x:%02x:%02x:%02x",
+                         p_mcb->bd_addr[0], p_mcb->bd_addr[1], p_mcb->bd_addr[2],
+                         p_mcb->bd_addr[3], p_mcb->bd_addr[4], p_mcb->bd_addr[5]);
+
+    if (!p_port)
+    {
+        /* This can be a first request for this port */
+        p_port = port_find_dlci_port (dlci);
+        if (!p_port)
+        {
+            RFCOMM_DlcEstablishRsp (p_mcb, dlci, 0, RFCOMM_ERROR);
+            return;
+        }
+        p_mcb->port_inx[dlci] = p_port->inx;
+    }
+
+    /* If L2CAP's mtu less then RFCOMM's take it */
+    if (mtu && (mtu < p_port->peer_mtu))
+        p_port->peer_mtu = mtu;
+
+    /* If there was an inactivity timer running for MCB stop it */
+    rfc_timer_stop (p_mcb);
+
+    RFCOMM_DlcEstablishRsp (p_mcb, dlci, p_port->mtu, RFCOMM_SUCCESS);
+
+    /* This is the server side.  If application wants to know when connection */
+    /* is established, thats the place */
+    if (p_port->p_callback && (p_port->ev_mask & PORT_EV_CONNECTED))
+        (p_port->p_callback)(PORT_EV_CONNECTED, p_port->inx);
+
+    if (p_port->p_mgmt_callback)
+        p_port->p_mgmt_callback (PORT_SUCCESS, p_port->inx);
+
+    p_port->state = PORT_STATE_OPENED;
+}
+
+
+/*******************************************************************************
+**
+** Function         PORT_DlcEstablishCnf
+**
+** Description      This function is called from the RFCOMM layer when peer
+**                  acknowledges establish procedure (SABME/UA).  Send reply
+**                  to the user and set state to OPENED if result was
+**                  successfull.
+**
+*******************************************************************************/
+void PORT_DlcEstablishCnf (tRFC_MCB *p_mcb, UINT8 dlci, UINT16 mtu, UINT16 result)
+{
+    tPORT  *p_port = port_find_mcb_dlci_port (p_mcb, dlci);
+
+    RFCOMM_TRACE_EVENT ("PORT_DlcEstablishCnf dlci:%d mtu:%d result:%d", dlci, mtu, result);
+
+    if (!p_port)
+        return;
+
+    if (result != RFCOMM_SUCCESS)
+    {
+        p_port->error = PORT_START_FAILED;
+        port_rfc_closed (p_port, PORT_START_FAILED);
+        return;
+    }
+
+    /* If L2CAP's mtu less then RFCOMM's take it */
+    if (mtu && (mtu < p_port->peer_mtu))
+        p_port->peer_mtu = mtu;
+
+    /* If there was an inactivity timer running for MCB stop it */
+    rfc_timer_stop (p_mcb);
+
+    if (p_port->p_callback && (p_port->ev_mask & PORT_EV_CONNECTED))
+        (p_port->p_callback)(PORT_EV_CONNECTED, p_port->inx);
+
+    if (p_port->p_mgmt_callback)
+        p_port->p_mgmt_callback (PORT_SUCCESS, p_port->inx);
+
+    p_port->state = PORT_STATE_OPENED;
+
+    /* RPN is required only if we want to tell DTE how the port should be opened */
+    if ((p_port->uuid == UUID_SERVCLASS_DIALUP_NETWORKING)
+     || (p_port->uuid == UUID_SERVCLASS_FAX))
+        RFCOMM_PortNegReq (p_port->rfc.p_mcb, p_port->dlci, NULL);
+    else
+        RFCOMM_ControlReq (p_port->rfc.p_mcb, p_port->dlci, &p_port->local_ctrl);
+}
+
+
+/*******************************************************************************
+**
+** Function         PORT_PortNegInd
+**
+** Description      This function is called from the RFCOMM layer when peer
+**                  device wants to set parameters of the port.  As per the spec
+**                  this message has to be sent before the first data packet
+**                  and can be sent before establish.  The block should be
+**                  allocated before meaning that application already made open.
+**
+*******************************************************************************/
+void PORT_PortNegInd (tRFC_MCB *p_mcb, UINT8 dlci, tPORT_STATE *p_pars,
+                      UINT16 param_mask)
+{
+    tPORT *p_port = port_find_mcb_dlci_port (p_mcb, dlci);
+
+    RFCOMM_TRACE_EVENT ("PORT_PortNegInd");
+
+    if (!p_port)
+    {
+        /* This can be a first request for this port */
+        p_port = port_find_dlci_port (dlci);
+        if (!p_port)
+        {
+            RFCOMM_PortNegRsp (p_mcb, dlci, p_pars, 0);
+            return;
+        }
+        p_mcb->port_inx[dlci] = p_port->inx;
+    }
+
+    /* Check if the flow control is acceptable on local side */
+    p_port->peer_port_pars = *p_pars;
+    RFCOMM_PortNegRsp (p_mcb, dlci, p_pars, param_mask);
+}
+
+
+/*******************************************************************************
+**
+** Function         PORT_PortNegCnf
+**
+** Description      This function is called from the RFCOMM layer to change
+**                  state for the port.  Propagate change to the user.
+**
+*******************************************************************************/
+void PORT_PortNegCnf (tRFC_MCB *p_mcb, UINT8 dlci, tPORT_STATE *p_pars, UINT16 result)
+{
+    tPORT  *p_port = port_find_mcb_dlci_port (p_mcb, dlci);
+    UNUSED(p_pars);
+
+    RFCOMM_TRACE_EVENT ("PORT_PortNegCnf");
+
+    if (!p_port)
+    {
+        RFCOMM_TRACE_WARNING ("PORT_PortNegCnf no port");
+        return;
+    }
+    /* Port negotiation failed. Drop the connection */
+    if (result != RFCOMM_SUCCESS)
+    {
+        p_port->error = PORT_PORT_NEG_FAILED;
+
+        RFCOMM_DlcReleaseReq (p_mcb, p_port->dlci);
+
+        port_rfc_closed (p_port, PORT_PORT_NEG_FAILED);
+        return;
+    }
+
+    if (!(p_port->port_ctrl & PORT_CTRL_REQ_SENT))
+    {
+        RFCOMM_ControlReq (p_port->rfc.p_mcb, p_port->dlci, &p_port->local_ctrl);
+    }
+    else
+    {
+        RFCOMM_TRACE_WARNING ("PORT_PortNegCnf Control Already sent");
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         PORT_ControlInd
+**
+** Description      This function is called from the RFCOMM layer on the modem
+**                  signal change.  Propagate change to the user.
+**
+*******************************************************************************/
+void PORT_ControlInd (tRFC_MCB *p_mcb, UINT8 dlci, tPORT_CTRL *p_pars)
+{
+    tPORT  *p_port = port_find_mcb_dlci_port (p_mcb, dlci);
+    UINT32 event;
+    UINT8  old_signals;
+
+    RFCOMM_TRACE_EVENT ("PORT_ControlInd");
+
+    if (!p_port)
+        return;
+
+    old_signals = p_port->peer_ctrl.modem_signal;
+
+    event = port_get_signal_changes (p_port, old_signals, p_pars->modem_signal);
+
+    p_port->peer_ctrl = *p_pars;
+
+    if (!(p_port->port_ctrl & PORT_CTRL_REQ_SENT))
+        RFCOMM_ControlReq (p_port->rfc.p_mcb, p_port->dlci, &p_port->local_ctrl);
+    else
+    {
+        /* If this is the first time we received control RFCOMM is connected */
+        if (!(p_port->port_ctrl & PORT_CTRL_IND_RECEIVED))
+        {
+            event |= (PORT_EV_CONNECTED & p_port->ev_mask);
+        }
+
+        if (p_port->port_ctrl & PORT_CTRL_REQ_CONFIRMED)
+        {
+            event |= port_rfc_send_tx_data(p_port);
+        }
+    }
+
+    p_port->port_ctrl |= (PORT_CTRL_IND_RECEIVED | PORT_CTRL_IND_RESPONDED);
+
+    if (p_pars->break_signal)
+        event |= (PORT_EV_BREAK & p_port->ev_mask);
+
+    /* execute call back function only if the application is registered for events */
+    if (event && p_port->p_callback)
+        (p_port->p_callback)(event, p_port->inx);
+
+    RFCOMM_TRACE_EVENT ("PORT_ControlInd DTR_DSR : %d, RTS_CTS : %d, RI : %d, DCD : %d",
+        ((p_port->peer_ctrl.modem_signal & MODEM_SIGNAL_DTRDSR) ? 1 : 0),
+        ((p_port->peer_ctrl.modem_signal & MODEM_SIGNAL_RTSCTS) ? 1 : 0),
+        ((p_port->peer_ctrl.modem_signal & MODEM_SIGNAL_RI) ? 1 : 0),
+        ((p_port->peer_ctrl.modem_signal & MODEM_SIGNAL_DCD) ? 1 : 0));
+
+}
+
+
+/*******************************************************************************
+**
+** Function         PORT_ControlCnf
+**
+** Description      This function is called from the RFCOMM layer when
+**                  peer acknowleges change of the modem signals.
+**
+*******************************************************************************/
+void PORT_ControlCnf (tRFC_MCB *p_mcb, UINT8 dlci, tPORT_CTRL *p_pars)
+{
+    tPORT *p_port = port_find_mcb_dlci_port (p_mcb, dlci);
+    UINT32 event = 0;
+    UNUSED(p_pars);
+
+    RFCOMM_TRACE_EVENT ("PORT_ControlCnf");
+
+    if (!p_port)
+        return;
+
+    if (!(p_port->port_ctrl & PORT_CTRL_REQ_CONFIRMED))
+    {
+        p_port->port_ctrl |= PORT_CTRL_REQ_CONFIRMED;
+
+        if (p_port->port_ctrl & PORT_CTRL_IND_RECEIVED)
+            event = (p_port->ev_mask & PORT_EV_CONNECTED);
+    }
+
+    if (p_port->port_ctrl & PORT_CTRL_IND_RECEIVED)
+    {
+        event |= port_rfc_send_tx_data(p_port);
+    }
+
+    /* execute call back function only if the application is registered for events */
+    if (event && p_port->p_callback)
+        (p_port->p_callback)(event, p_port->inx);
+}
+
+
+/*******************************************************************************
+**
+** Function         PORT_LineStatusInd
+**
+** Description      This function is called from the RFCOMM layer when
+**                  peer indicates change in the line status
+**
+*******************************************************************************/
+void PORT_LineStatusInd (tRFC_MCB *p_mcb, UINT8 dlci, UINT8 line_status)
+{
+    tPORT  *p_port = port_find_mcb_dlci_port (p_mcb, dlci);
+    UINT32 event = 0;
+
+    RFCOMM_TRACE_EVENT ("PORT_LineStatusInd");
+
+    if (!p_port)
+        return;
+
+    p_port->line_status |= line_status;
+
+    if (line_status & PORT_ERR_OVERRUN)
+        event |= PORT_EV_OVERRUN;
+
+    if (line_status & PORT_ERR_BREAK)
+        event |= PORT_EV_BREAK;
+
+    if (line_status & ~(PORT_ERR_OVERRUN | PORT_ERR_BREAK))
+        event |= PORT_EV_ERR;
+
+    if ((p_port->p_callback != NULL) && (p_port->ev_mask & event))
+          p_port->p_callback ((p_port->ev_mask & event), p_port->inx);
+}
+
+
+/*******************************************************************************
+**
+** Function         PORT_DlcReleaseInd
+**
+** Description      This function is called from the RFCOMM layer when
+**                  DLC connection is released.
+**
+*******************************************************************************/
+void PORT_DlcReleaseInd (tRFC_MCB *p_mcb, UINT8 dlci)
+{
+    tPORT  *p_port = port_find_mcb_dlci_port (p_mcb, dlci);
+
+    RFCOMM_TRACE_EVENT ("PORT_DlcReleaseInd");
+
+    if (!p_port)
+        return;
+
+    port_rfc_closed (p_port, PORT_CLOSED);
+}
+
+
+/*******************************************************************************
+**
+** Function         PORT_CloseInd
+**
+** Description      This function is called from the RFCOMM layer when
+**                  multiplexer connection is released.
+**
+*******************************************************************************/
+void PORT_CloseInd (tRFC_MCB *p_mcb)
+{
+    tPORT  *p_port;
+    int    i;
+
+    RFCOMM_TRACE_EVENT ("PORT_CloseInd");
+
+    p_port = &rfc_cb.port.port[0];
+    for (i = 0; i < MAX_RFC_PORTS; i++, p_port++)
+    {
+        if (p_port->rfc.p_mcb == p_mcb)
+        {
+            port_rfc_closed (p_port, PORT_PEER_CONNECTION_FAILED);
+        }
+    }
+    rfc_release_multiplexer_channel (p_mcb);
+}
+
+/*******************************************************************************
+**
+** Function         Port_TimeOutCloseMux
+**
+** Description      This function is called when RFCOMM timesout on a command
+**                  as a result multiplexer connection is closed.
+**
+*******************************************************************************/
+void Port_TimeOutCloseMux (tRFC_MCB *p_mcb)
+{
+    tPORT  *p_port;
+    int    i;
+
+    RFCOMM_TRACE_EVENT ("Port_TimeOutCloseMux");
+
+    p_port = &rfc_cb.port.port[0];
+    for (i = 0; i < MAX_RFC_PORTS; i++, p_port++)
+    {
+        if (p_port->rfc.p_mcb == p_mcb)
+        {
+            port_rfc_closed (p_port, PORT_PEER_TIMEOUT);
+        }
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         PORT_DataInd
+**
+** Description      This function is called from the RFCOMM layer when data
+**                  buffer is received from the peer.
+**
+*******************************************************************************/
+void PORT_DataInd (tRFC_MCB *p_mcb, UINT8 dlci, BT_HDR *p_buf)
+{
+    tPORT  *p_port = port_find_mcb_dlci_port (p_mcb, dlci);
+    UINT8  rx_char1;
+    UINT32 events = 0;
+    UINT8  *p;
+    int    i;
+
+    RFCOMM_TRACE_EVENT("PORT_DataInd with data length %d, p_mcb:%p,p_port:%p,dlci:%d",
+                        p_buf->len, p_mcb, p_port, dlci);
+    if (!p_port)
+    {
+        osi_free(p_buf);
+        return;
+    }
+    /* If client registered callout callback with flow control we can just deliver receive data */
+    if (p_port->p_data_co_callback)
+    {
+        /* Another packet is delivered to user.  Send credits to peer if required */
+
+        if(p_port->p_data_co_callback(p_port->inx, (UINT8*)p_buf, -1, DATA_CO_CALLBACK_TYPE_INCOMING))
+            port_flow_control_peer(p_port, TRUE, 1);
+        else port_flow_control_peer(p_port, FALSE, 0);
+        //osi_free(p_buf);
+        return;
+    }
+    else RFCOMM_TRACE_ERROR("PORT_DataInd, p_port:%p, p_data_co_callback is null", p_port);
+    /* If client registered callback we can just deliver receive data */
+    if (p_port->p_data_callback)
+    {
+        /* Another packet is delivered to user.  Send credits to peer if required */
+        port_flow_control_peer(p_port, TRUE, 1);
+
+        p_port->p_data_callback (p_port->inx, (UINT8 *)(p_buf + 1) + p_buf->offset, p_buf->len);
+        osi_free(p_buf);
+        return;
+    }
+
+    /* Check if rx queue exceeds the limit */
+    if ((p_port->rx.queue_size + p_buf->len > PORT_RX_CRITICAL_WM)
+     || (fixed_queue_length(p_port->rx.queue) + 1 > p_port->rx_buf_critical))
+    {
+        RFCOMM_TRACE_EVENT ("PORT_DataInd. Buffer over run. Dropping the buffer");
+        osi_free(p_buf);
+
+        RFCOMM_LineStatusReq (p_mcb, dlci, LINE_STATUS_OVERRUN);
+        return;
+    }
+
+    /* If user registered to receive notification when a particular byte is */
+    /* received we mast check all received bytes */
+    if (((rx_char1 = p_port->user_port_pars.rx_char1) != 0)
+     && (p_port->ev_mask & PORT_EV_RXFLAG))
+    {
+        for (i = 0, p = (UINT8 *)(p_buf + 1) + p_buf->offset; i < p_buf->len; i++)
+        {
+            if (*p++ == rx_char1)
+            {
+                events |= PORT_EV_RXFLAG;
+                break;
+            }
+        }
+    }
+
+    mutex_global_lock();
+
+    fixed_queue_enqueue(p_port->rx.queue, p_buf);
+    p_port->rx.queue_size += p_buf->len;
+
+    mutex_global_unlock();
+
+    /* perform flow control procedures if necessary */
+    port_flow_control_peer(p_port, FALSE, 0);
+
+    /* If user indicated flow control can not deliver any notifications to him */
+    if (p_port->rx.user_fc)
+    {
+        if (events & PORT_EV_RXFLAG)
+            p_port->rx_flag_ev_pending = TRUE;
+
+        return;
+    }
+
+    events |= PORT_EV_RXCHAR;
+
+    /* Mask out all events that are not of interest to user */
+    events &= p_port->ev_mask;
+
+    if (p_port->p_callback && events)
+        p_port->p_callback (events, p_port->inx);
+}
+
+
+/*******************************************************************************
+**
+** Function         PORT_FlowInd
+**
+** Description      This function is called from the RFCOMM layer on the flow
+**                  control signal change.  Propagate change to the user.
+**
+*******************************************************************************/
+void PORT_FlowInd (tRFC_MCB *p_mcb, UINT8 dlci, BOOLEAN enable_data)
+{
+    tPORT  *p_port = (tPORT *)NULL;
+    UINT32 events = 0;
+    int    i;
+
+    RFCOMM_TRACE_EVENT ("PORT_FlowInd fc:%d", enable_data);
+
+    if (dlci == 0)
+    {
+        p_mcb->peer_ready = enable_data;
+    }
+    else
+    {
+        if ((p_port = port_find_mcb_dlci_port (p_mcb, dlci)) == NULL)
+            return;
+
+        p_port->tx.peer_fc = !enable_data;
+    }
+
+    for (i = 0; i < MAX_RFC_PORTS; i++)
+    {
+        /* If DLCI is 0 event applies to all ports */
+        if (dlci == 0)
+        {
+            p_port = &rfc_cb.port.port[i];
+            if (!p_port->in_use
+             || (p_port->rfc.p_mcb != p_mcb)
+             || (p_port->rfc.state != RFC_STATE_OPENED))
+                continue;
+        }
+        events = 0;
+
+        /* Check if flow of data is still enabled */
+        events |= port_flow_control_user (p_port);
+
+        /* Check if data can be sent and send it */
+        events |= port_rfc_send_tx_data (p_port);
+
+        /* Mask out all events that are not of interest to user */
+        events &= p_port->ev_mask;
+
+        /* Send event to the application */
+        if (p_port->p_callback && events)
+            (p_port->p_callback)(events, p_port->inx);
+
+        /* If DLCI is not 0 event applies to one port only */
+        if (dlci != 0)
+            break;
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         port_rfc_send_tx_data
+**
+** Description      This function is when forward data can be sent to the peer
+**
+*******************************************************************************/
+UINT32 port_rfc_send_tx_data (tPORT *p_port)
+{
+    UINT32 events = 0;
+    BT_HDR *p_buf;
+
+    /* if there is data to be sent */
+    if (p_port->tx.queue_size > 0)
+    {
+        /* while the rfcomm peer is not flow controlling us, and peer is ready */
+        while (!p_port->tx.peer_fc && p_port->rfc.p_mcb && p_port->rfc.p_mcb->peer_ready)
+        {
+            /* get data from tx queue and send it */
+            mutex_global_lock();
+
+            if ((p_buf = (BT_HDR *)fixed_queue_try_dequeue(p_port->tx.queue)) != NULL)
+            {
+                p_port->tx.queue_size -= p_buf->len;
+
+                mutex_global_unlock();
+
+                RFCOMM_TRACE_DEBUG ("Sending RFCOMM_DataReq tx.queue_size=%d", p_port->tx.queue_size);
+
+                RFCOMM_DataReq (p_port->rfc.p_mcb, p_port->dlci, p_buf);
+
+                events |= PORT_EV_TXCHAR;
+
+                if (p_port->tx.queue_size == 0)
+                {
+                    events |= PORT_EV_TXEMPTY;
+                    break;
+                }
+            }
+            /* queue is empty-- all data sent */
+            else
+            {
+                mutex_global_unlock();
+
+                events |= PORT_EV_TXEMPTY;
+                break;
+            }
+        }
+        /* If we flow controlled user based on the queue size enable data again */
+        events |= port_flow_control_user (p_port);
+    }
+    return (events & p_port->ev_mask);
+}
+
+
+/*******************************************************************************
+**
+** Function         port_rfc_closed
+**
+** Description      This function when RFCOMM side of port is closed
+**
+*******************************************************************************/
+void port_rfc_closed (tPORT *p_port, UINT8 res)
+{
+    UINT8     old_signals;
+    UINT32    events = 0;
+    tRFC_MCB *p_mcb = p_port->rfc.p_mcb;
+
+    if ((p_port->state == PORT_STATE_OPENING) && (p_port->is_server))
+    {
+        /* The servr side has not been informed that connection is up, ignore */
+        RFCOMM_TRACE_EVENT ("port_rfc_closed in OPENING state ignored");
+
+        rfc_port_timer_stop (p_port);
+        p_port->rfc.state = RFC_STATE_CLOSED;
+
+        if (p_mcb)
+        {
+            p_mcb->port_inx[p_port->dlci] = 0;
+
+            /* If there are no more ports opened on this MCB release it */
+            rfc_check_mcb_active (p_mcb);
+            p_port->rfc.p_mcb = NULL;
+        }
+
+        /* Need to restore DLCI to listening state
+         * if the server was on the initiating RFC
+         */
+        p_port->dlci &= 0xfe;
+
+        return;
+    }
+
+    if ((p_port->state != PORT_STATE_CLOSING) && (p_port->state != PORT_STATE_CLOSED))
+    {
+        p_port->line_status |= LINE_STATUS_FAILED;
+
+        old_signals = p_port->peer_ctrl.modem_signal;
+
+        p_port->peer_ctrl.modem_signal &= ~(PORT_DTRDSR_ON | PORT_CTSRTS_ON | PORT_DCD_ON);
+
+        events |= port_get_signal_changes (p_port, old_signals, p_port->peer_ctrl.modem_signal);
+
+        if(p_port->ev_mask & PORT_EV_CONNECT_ERR)
+            events |= PORT_EV_CONNECT_ERR;
+    }
+    RFCOMM_TRACE_EVENT ("port_rfc_closed state:%d sending events:%x", p_port->state, events);
+
+    if ((p_port->p_callback != NULL) && events)
+        p_port->p_callback (events, p_port->inx);
+
+    if (p_port->p_mgmt_callback)
+        p_port->p_mgmt_callback (res, p_port->inx);
+
+    p_port->rfc.state = RFC_STATE_CLOSED;
+
+    RFCOMM_TRACE_WARNING ("%s RFCOMM connection in state %d closed: %s (res: %d)",
+                          __func__, p_port->state, PORT_GetResultString(res), res);
+
+    port_release_port (p_port);
+}
+
+
+/*******************************************************************************
+**
+** Function         port_get_credits
+**
+** Description      Set initial values for credits.
+**                  Adjust max number of rx credits based on negotiated MTU.
+**                  Check max allowed num of bytes, max allowed num buffers,
+**                  should be less then 255
+**
+*******************************************************************************/
+void port_get_credits (tPORT *p_port, UINT8 k)
+{
+    p_port->credit_tx = k;
+    if (p_port->credit_tx == 0)
+        p_port->tx.peer_fc = TRUE;
+}
diff --git a/rtkbt/code/bt/stack/rfcomm/port_utils.c b/rtkbt/code/bt/stack/rfcomm/port_utils.c
new file mode 100755
index 0000000..3a8ff6c
--- /dev/null
+++ b/rtkbt/code/bt/stack/rfcomm/port_utils.c
@@ -0,0 +1,592 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  Port Emulation entity utilities
+ *
+ ******************************************************************************/
+#include <string.h>
+
+#include "osi/include/mutex.h"
+
+#include "bt_target.h"
+#include "bt_common.h"
+#include "btm_int.h"
+#include "btu.h"
+#include "l2cdefs.h"
+#include "port_api.h"
+#include "port_int.h"
+#include "rfc_int.h"
+#include "rfcdefs.h"
+
+static const tPORT_STATE default_port_pars =
+{
+    PORT_BAUD_RATE_9600,
+    PORT_8_BITS,
+    PORT_ONESTOPBIT,
+    PORT_PARITY_NO,
+    PORT_ODD_PARITY,
+    PORT_FC_OFF,
+    0,                      /* No rx_char */
+    PORT_XON_DC1,
+    PORT_XOFF_DC3,
+};
+
+
+
+/*******************************************************************************
+**
+** Function         port_allocate_port
+**
+** Description      Look through the Port Control Blocks for a free one.  Note
+**                  that one server can open several ports with the same SCN
+**                  if it can support simulteneous requests from different
+**                  clients.
+**
+** Returns          Pointer to the PORT or NULL if not found
+**
+*******************************************************************************/
+tPORT *port_allocate_port (UINT8 dlci, BD_ADDR bd_addr)
+{
+    tPORT  *p_port = &rfc_cb.port.port[0];
+    UINT8  xx, yy;
+
+    for (xx = 0, yy = rfc_cb.rfc.last_port + 1; xx < MAX_RFC_PORTS; xx++, yy++)
+    {
+        if (yy >= MAX_RFC_PORTS)
+            yy = 0;
+
+        p_port = &rfc_cb.port.port[yy];
+        if (!p_port->in_use)
+        {
+            memset(p_port, 0, sizeof (tPORT));
+
+            p_port->in_use = TRUE;
+            p_port->inx    = yy + 1;
+
+            /* During the open set default state for the port connection */
+            port_set_defaults (p_port);
+
+            p_port->rfc.port_timer = alarm_new("rfcomm_port.port_timer");
+            rfc_cb.rfc.last_port = yy;
+
+            p_port->dlci   = dlci;
+            memcpy (p_port->bd_addr, bd_addr, BD_ADDR_LEN);
+
+            RFCOMM_TRACE_DEBUG("rfc_cb.port.port[%d]:%p allocated, last_port:%d", yy, p_port, rfc_cb.rfc.last_port);
+            RFCOMM_TRACE_DEBUG("port_allocate_port:bd_addr:%02x:%02x:%02x:%02x:%02x:%02x",
+                                bd_addr[0], bd_addr[1], bd_addr[2], bd_addr[3], bd_addr[4], bd_addr[5]);
+            return (p_port);
+        }
+    }
+
+    /* If here, no free PORT found */
+    return (NULL);
+}
+
+
+/*******************************************************************************
+**
+** Function         port_set_defaults
+**
+** Description      Set defualt port parameters
+**
+**
+*******************************************************************************/
+void port_set_defaults (tPORT *p_port)
+{
+    p_port->ev_mask        = 0;
+    p_port->p_callback     = NULL;
+    p_port->port_ctrl      = 0;
+    p_port->error          = 0;
+    p_port->line_status    = 0;
+    p_port->rx_flag_ev_pending = FALSE;
+    p_port->peer_mtu       = RFCOMM_DEFAULT_MTU;
+
+    p_port->user_port_pars = default_port_pars;
+    p_port->peer_port_pars = default_port_pars;
+
+    p_port->credit_tx      = 0;
+    p_port->credit_rx      = 0;
+
+    memset (&p_port->local_ctrl, 0, sizeof (p_port->local_ctrl));
+    memset (&p_port->peer_ctrl, 0, sizeof (p_port->peer_ctrl));
+    memset (&p_port->rx, 0, sizeof (p_port->rx));
+    memset (&p_port->tx, 0, sizeof (p_port->tx));
+
+    p_port->tx.queue = fixed_queue_new(SIZE_MAX);
+    p_port->rx.queue = fixed_queue_new(SIZE_MAX);
+}
+
+/*******************************************************************************
+**
+** Function         port_select_mtu
+**
+** Description      Select MTU which will best serve connection from our
+**                  point of view.
+**                  If our device is 1.2 or lower we calculate how many DH5s
+**                  fit into 1 RFCOMM buffer.
+**
+**
+*******************************************************************************/
+void port_select_mtu (tPORT *p_port)
+{
+    UINT16 packet_size;
+
+    /* Will select MTU only if application did not setup something */
+    if (p_port->mtu == 0)
+    {
+        /* find packet size which connection supports */
+        packet_size = btm_get_max_packet_size (p_port->bd_addr);
+        if (packet_size == 0)
+        {
+            /* something is very wrong */
+            RFCOMM_TRACE_WARNING ("port_select_mtu bad packet size");
+            p_port->mtu = RFCOMM_DEFAULT_MTU;
+        }
+        else
+        {
+            /* We try to negotiate MTU that each packet can be split into whole
+            number of max packets.  For example if link is 1.2 max packet size is 339 bytes.
+            At first calculate how many whole packets it is.  MAX L2CAP is 1691 + 4 overhead.
+            1695, that will be 5 Dh5 packets.  Now maximum RFCOMM packet is
+            5 * 339 = 1695. Minus 4 bytes L2CAP header 1691.  Minus RFCOMM 6 bytes header overhead 1685
+
+            For EDR 2.0 packet size is 1027.  So we better send RFCOMM packet as 1 3DH5 packet
+            1 * 1027 = 1027.  Minus 4 bytes L2CAP header 1023.  Minus RFCOMM 6 bytes header overhead 1017 */
+            if ((L2CAP_MTU_SIZE + L2CAP_PKT_OVERHEAD) >= packet_size)
+            {
+                p_port->mtu = ((L2CAP_MTU_SIZE + L2CAP_PKT_OVERHEAD) / packet_size * packet_size) - RFCOMM_DATA_OVERHEAD - L2CAP_PKT_OVERHEAD;
+                RFCOMM_TRACE_DEBUG ("port_select_mtu selected %d based on connection speed", p_port->mtu);
+            }
+            else
+            {
+                p_port->mtu = L2CAP_MTU_SIZE - RFCOMM_DATA_OVERHEAD;
+                RFCOMM_TRACE_DEBUG ("port_select_mtu selected %d based on l2cap PDU size", p_port->mtu);
+            }
+        }
+    }
+    else
+    {
+        RFCOMM_TRACE_DEBUG ("port_select_mtu application selected %d", p_port->mtu);
+    }
+    p_port->credit_rx_max  = (PORT_RX_HIGH_WM / p_port->mtu);
+    if( p_port->credit_rx_max > PORT_RX_BUF_HIGH_WM )
+        p_port->credit_rx_max = PORT_RX_BUF_HIGH_WM;
+    p_port->credit_rx_low  = (PORT_RX_LOW_WM / p_port->mtu);
+    if( p_port->credit_rx_low > PORT_RX_BUF_LOW_WM )
+        p_port->credit_rx_low = PORT_RX_BUF_LOW_WM;
+    p_port->rx_buf_critical = (PORT_RX_CRITICAL_WM / p_port->mtu);
+    if( p_port->rx_buf_critical > PORT_RX_BUF_CRITICAL_WM )
+        p_port->rx_buf_critical = PORT_RX_BUF_CRITICAL_WM;
+    RFCOMM_TRACE_DEBUG ("port_select_mtu credit_rx_max %d, credit_rx_low %d, rx_buf_critical %d",
+                          p_port->credit_rx_max, p_port->credit_rx_low, p_port->rx_buf_critical);
+}
+
+/*******************************************************************************
+**
+** Function         port_release_port
+**
+** Description      Release port control block.
+**
+** Returns          Pointer to the PORT or NULL if not found
+**
+*******************************************************************************/
+void port_release_port(tPORT *p_port)
+{
+    RFCOMM_TRACE_DEBUG("%s p_port: %p state: %d keep_handle: %d", __func__,
+        p_port, p_port->rfc.state, p_port->keep_port_handle);
+
+    mutex_global_lock();
+    BT_HDR *p_buf;
+    while ((p_buf = (BT_HDR *)fixed_queue_try_dequeue(p_port->rx.queue)) != NULL)
+        osi_free(p_buf);
+    p_port->rx.queue_size = 0;
+
+    while ((p_buf = (BT_HDR *)fixed_queue_try_dequeue(p_port->tx.queue)) != NULL)
+        osi_free(p_buf);
+    p_port->tx.queue_size = 0;
+    mutex_global_unlock();
+
+    alarm_cancel(p_port->rfc.port_timer);
+
+    p_port->state = PORT_STATE_CLOSED;
+
+    if (p_port->rfc.state == RFC_STATE_CLOSED)
+    {
+        if (p_port->rfc.p_mcb)
+        {
+            p_port->rfc.p_mcb->port_inx[p_port->dlci] = 0;
+
+            /* If there are no more ports opened on this MCB release it */
+            rfc_check_mcb_active(p_port->rfc.p_mcb);
+        }
+
+        rfc_port_timer_stop (p_port);
+        fixed_queue_free(p_port->tx.queue, NULL);
+        p_port->tx.queue = NULL;
+        fixed_queue_free(p_port->rx.queue, NULL);
+        p_port->rx.queue = NULL;
+
+        if (p_port->keep_port_handle)
+        {
+            RFCOMM_TRACE_DEBUG("%s Re-initialize handle: %d", __func__, p_port->inx);
+
+            /* save event mask and callback */
+            UINT32 mask = p_port->ev_mask;
+            tPORT_CALLBACK *p_port_cb = p_port->p_callback;
+            tPORT_STATE user_port_pars = p_port->user_port_pars;
+
+            port_set_defaults(p_port);
+
+            /* restore */
+            p_port->ev_mask         = mask;
+            p_port->p_callback      = p_port_cb;
+            p_port->user_port_pars  = user_port_pars;
+            p_port->mtu             = p_port->keep_mtu;
+
+            p_port->state           = PORT_STATE_OPENING;
+            p_port->rfc.p_mcb       = NULL;
+            if (p_port->is_server)
+                p_port->dlci       &= 0xfe;
+
+            p_port->local_ctrl.modem_signal = p_port->default_signal_state;
+            memcpy (p_port->bd_addr, BT_BD_ANY, BD_ADDR_LEN);
+        } else {
+            RFCOMM_TRACE_DEBUG("%s Clean-up handle: %d", __func__, p_port->inx);
+            alarm_free(p_port->rfc.port_timer);
+            memset (p_port, 0, sizeof (tPORT));
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         port_find_mcb
+**
+** Description      This function checks if connection exists to device with
+**                  the BD_ADDR.
+**
+*******************************************************************************/
+tRFC_MCB *port_find_mcb (BD_ADDR bd_addr)
+{
+    int      i;
+
+    for (i = 0; i < MAX_BD_CONNECTIONS; i++)
+    {
+        if ((rfc_cb.port.rfc_mcb[i].state != RFC_MX_STATE_IDLE)
+         && !memcmp (rfc_cb.port.rfc_mcb[i].bd_addr, bd_addr, BD_ADDR_LEN))
+        {
+            /* Multiplexer channel found do not change anything */
+            RFCOMM_TRACE_DEBUG("port_find_mcb: found  bd_addr:%02x:%02x:%02x:%02x:%02x:%02x",
+                                bd_addr[0], bd_addr[1], bd_addr[2], bd_addr[3], bd_addr[4], bd_addr[5]);
+            RFCOMM_TRACE_DEBUG("port_find_mcb: rfc_cb.port.rfc_mcb:index:%d, %p, lcid:%d",
+                                i, &rfc_cb.port.rfc_mcb[i], rfc_cb.port.rfc_mcb[i].lcid);
+            return (&rfc_cb.port.rfc_mcb[i]);
+        }
+    }
+    RFCOMM_TRACE_DEBUG("port_find_mcb: not found, bd_addr:%02x:%02x:%02x:%02x:%02x:%02x",
+                         bd_addr[0], bd_addr[1], bd_addr[2], bd_addr[3], bd_addr[4], bd_addr[5]);
+    return (NULL);
+}
+
+
+/*******************************************************************************
+**
+** Function         port_find_mcb_dlci_port
+**
+** Description      Find port on the multiplexer channel based on DLCI.  If
+**                  this port with DLCI not found try to use even DLCI.  This
+**                  is for the case when client is establishing connection on
+**                  none-initiator MCB.
+**
+** Returns          Pointer to the PORT or NULL if not found
+**
+*******************************************************************************/
+tPORT *port_find_mcb_dlci_port (tRFC_MCB *p_mcb, UINT8 dlci)
+{
+    UINT8 inx;
+
+    if (!p_mcb)
+        return (NULL);
+
+    if (dlci > RFCOMM_MAX_DLCI)
+        return (NULL);
+
+    inx = p_mcb->port_inx[dlci];
+    if (inx == 0)
+    {
+        RFCOMM_TRACE_DEBUG("port_find_mcb_dlci_port: p_mcb:%p, port_inx[dlci:%d] is 0", p_mcb, dlci);
+        return (NULL);
+    }
+    else
+        return (&rfc_cb.port.port[inx - 1]);
+}
+
+
+/*******************************************************************************
+**
+** Function         port_find_dlci_port
+**
+** Description      Find port with DLCI not assigned to multiplexer channel
+**
+** Returns          Pointer to the PORT or NULL if not found
+**
+*******************************************************************************/
+tPORT *port_find_dlci_port (UINT8 dlci)
+{
+    UINT16 i;
+    tPORT  *p_port;
+
+    for (i = 0; i < MAX_RFC_PORTS; i++)
+    {
+        p_port = &rfc_cb.port.port[i];
+
+        if (p_port->in_use && (p_port->rfc.p_mcb == NULL))
+        {
+            if (p_port->dlci == dlci)
+            {
+                return (p_port);
+            }
+            else if ((dlci & 0x01) && (p_port->dlci == (dlci - 1)))
+            {
+                p_port->dlci++;
+                return (p_port);
+            }
+        }
+    }
+    return (NULL);
+}
+
+
+/*******************************************************************************
+**
+** Function         port_find_port
+**
+** Description      Find port with DLCI, BD_ADDR
+**
+** Returns          Pointer to the PORT or NULL if not found
+**
+*******************************************************************************/
+tPORT *port_find_port (UINT8 dlci, BD_ADDR bd_addr)
+{
+    UINT16 i;
+    tPORT  *p_port;
+
+    for (i = 0; i < MAX_RFC_PORTS; i++)
+    {
+        p_port = &rfc_cb.port.port[i];
+        if (p_port->in_use
+         && (p_port->dlci == dlci)
+         && !memcmp (p_port->bd_addr, bd_addr, BD_ADDR_LEN))
+        {
+            return (p_port);
+        }
+    }
+    return (NULL);
+}
+
+
+/*******************************************************************************
+**
+** Function         port_flow_control_user
+**
+** Description      Check the current user flow control and if necessary return
+**                  events to be send to the user based on the user's specified
+**                  flow control type.
+**
+** Returns          event mask to be returned to the application
+**
+*******************************************************************************/
+UINT32 port_flow_control_user (tPORT *p_port)
+{
+    UINT32 event = 0;
+
+    /* Flow control to the user can be caused by flow controlling by the peer */
+    /* (FlowInd, or flow control by the peer RFCOMM (Fcon) or internally if */
+    /* tx_queue is full */
+    BOOLEAN fc = p_port->tx.peer_fc
+              || !p_port->rfc.p_mcb
+              || !p_port->rfc.p_mcb->peer_ready
+              || (p_port->tx.queue_size > PORT_TX_HIGH_WM)
+              || (fixed_queue_length(p_port->tx.queue) > PORT_TX_BUF_HIGH_WM);
+
+    if (p_port->tx.user_fc == fc)
+        return (0);
+
+    p_port->tx.user_fc = fc;
+
+    if (fc)
+        event = PORT_EV_FC;
+    else
+        event = PORT_EV_FC | PORT_EV_FCS;
+
+    return (event);
+}
+
+
+/*******************************************************************************
+**
+** Function         port_get_signal_changes
+**
+** Description      Check modem signals that has been changed
+**
+** Returns          event mask to be returned to the application
+**
+*******************************************************************************/
+UINT32 port_get_signal_changes (tPORT *p_port, UINT8 old_signals, UINT8 signal)
+{
+    UINT8  changed_signals = (signal ^ old_signals);
+    UINT32 events = 0;
+
+    if (changed_signals & PORT_DTRDSR_ON)
+    {
+        events |= PORT_EV_DSR;
+
+        if (signal & PORT_DTRDSR_ON)
+            events |= PORT_EV_DSRS;
+    }
+
+    if (changed_signals & PORT_CTSRTS_ON)
+    {
+        events |= PORT_EV_CTS;
+
+        if (signal & PORT_CTSRTS_ON)
+            events |= PORT_EV_CTSS;
+    }
+
+    if (changed_signals & PORT_RING_ON)
+        events |= PORT_EV_RING;
+
+    if (changed_signals & PORT_DCD_ON)
+    {
+        events |= PORT_EV_RLSD;
+
+        if (signal & PORT_DCD_ON)
+            events |= PORT_EV_RLSDS;
+    }
+
+    return (p_port->ev_mask & events);
+}
+
+/*******************************************************************************
+**
+** Function         port_flow_control_peer
+**
+** Description      Send flow control messages to the peer for both enabling
+**                  and disabling flow control, for both credit-based and
+**                  TS 07.10 flow control mechanisms.
+**
+** Returns          nothing
+**
+*******************************************************************************/
+void port_flow_control_peer(tPORT *p_port, BOOLEAN enable, UINT16 count)
+{
+    if (!p_port->rfc.p_mcb)
+        return;
+
+    /* If using credit based flow control */
+    if (p_port->rfc.p_mcb->flow == PORT_FC_CREDIT)
+    {
+        /* if want to enable flow from peer */
+        if (enable)
+        {
+            /* update rx credits */
+            if (count > p_port->credit_rx)
+            {
+                p_port->credit_rx = 0;
+            }
+            else
+            {
+                p_port->credit_rx -= count;
+            }
+
+            /* If credit count is less than low credit watermark, and user */
+            /* did not force flow control, send a credit update */
+            /* There might be a special case when we just adjusted rx_max */
+            if ((p_port->credit_rx <= p_port->credit_rx_low)
+             && !p_port->rx.user_fc
+             && (p_port->credit_rx_max > p_port->credit_rx))
+            {
+                rfc_send_credit(p_port->rfc.p_mcb, p_port->dlci,
+                                (UINT8) (p_port->credit_rx_max - p_port->credit_rx));
+
+                p_port->credit_rx = p_port->credit_rx_max;
+
+                p_port->rx.peer_fc = FALSE;
+            }
+        }
+        /* else want to disable flow from peer */
+        else
+        {
+            /* if client registered data callback, just do what they want */
+            if (p_port->p_data_callback || p_port->p_data_co_callback)
+            {
+                p_port->rx.peer_fc = TRUE;
+            }
+            /* if queue count reached credit rx max, set peer fc */
+            else if (fixed_queue_length(p_port->rx.queue) >= p_port->credit_rx_max)
+            {
+                p_port->rx.peer_fc = TRUE;
+            }
+        }
+    }
+    /* else using TS 07.10 flow control */
+    else
+    {
+        /* if want to enable flow from peer */
+        if (enable)
+        {
+            /* If rfcomm suspended traffic from the peer based on the rx_queue_size */
+            /* check if it can be resumed now */
+            if (p_port->rx.peer_fc
+             && (p_port->rx.queue_size < PORT_RX_LOW_WM)
+             && (fixed_queue_length(p_port->rx.queue) < PORT_RX_BUF_LOW_WM))
+            {
+                p_port->rx.peer_fc = FALSE;
+
+                /* If user did not force flow control allow traffic now */
+                if (!p_port->rx.user_fc)
+                    RFCOMM_FlowReq (p_port->rfc.p_mcb, p_port->dlci, TRUE);
+            }
+        }
+        /* else want to disable flow from peer */
+        else
+        {
+            /* if client registered data callback, just do what they want */
+            if (p_port->p_data_callback || p_port->p_data_co_callback)
+            {
+                p_port->rx.peer_fc = TRUE;
+                RFCOMM_FlowReq (p_port->rfc.p_mcb, p_port->dlci, FALSE);
+            }
+            /* Check the size of the rx queue.  If it exceeds certain */
+            /* level and flow control has not been sent to the peer do it now */
+            else if ( ((p_port->rx.queue_size > PORT_RX_HIGH_WM)
+                     || (fixed_queue_length(p_port->rx.queue) > PORT_RX_BUF_HIGH_WM))
+                     && !p_port->rx.peer_fc)
+            {
+                RFCOMM_TRACE_EVENT ("PORT_DataInd Data reached HW. Sending FC set.");
+
+                p_port->rx.peer_fc = TRUE;
+                RFCOMM_FlowReq (p_port->rfc.p_mcb, p_port->dlci, FALSE);
+            }
+        }
+    }
+}
+
diff --git a/rtkbt/code/bt/stack/rfcomm/rfc_int.h b/rtkbt/code/bt/stack/rfcomm/rfc_int.h
new file mode 100755
index 0000000..de6a6ab
--- /dev/null
+++ b/rtkbt/code/bt/stack/rfcomm/rfc_int.h
@@ -0,0 +1,384 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/*****************************************************************************
+ *
+ *  This file contains definitions internal to the RFC unit
+ *
+ *****************************************************************************/
+
+#ifndef RFC_INT_H
+#define RFC_INT_H
+
+#include "l2c_api.h"
+#include "port_int.h"
+
+/*
+** Define RFCOMM result codes
+*/
+#define RFCOMM_SUCCESS          0
+#define RFCOMM_ERROR            1
+#define RFCOMM_LOW_RESOURCES    2
+#define RFCOMM_TRY_LATER        3
+
+#define RFCOMM_USER_ERR         111
+#define RFCOMM_SECURITY_ERR     112
+
+/*
+** Define max and min RFCOMM MTU (N1)
+*/
+#define RFCOMM_MIN_MTU          23
+#define RFCOMM_MAX_MTU          32767
+
+extern void RFCOMM_StartReq (tRFC_MCB *p_mcb);
+extern void RFCOMM_StartRsp (tRFC_MCB *p_mcb, UINT16 result);
+
+extern void RFCOMM_DlcEstablishReq (tRFC_MCB *p_mcb, UINT8 dlci, UINT16 mtu);
+extern void RFCOMM_DlcEstablishRsp (tRFC_MCB *p_mcb, UINT8 dlci, UINT16 mtu, UINT16 result);
+
+extern void RFCOMM_DataReq (tRFC_MCB *p_mcb, UINT8 dlci, BT_HDR *p_buf);
+
+extern void RFCOMM_DlcReleaseReq (tRFC_MCB *p_mcb, UINT8 dlci);
+
+extern void RFCOMM_ParNegReq (tRFC_MCB *p_mcb, UINT8 dlci, UINT16 mtu);
+extern void RFCOMM_ParNegRsp (tRFC_MCB *p_mcb, UINT8 dlci, UINT16 mtu, UINT8 cl, UINT8 k);
+
+extern void RFCOMM_TestReq (UINT8 *p_data, UINT16 len);
+
+#define RFCOMM_FLOW_STATE_DISABLE       0
+#define RFCOMM_FLOW_STATE_ENABLE        1
+
+extern void RFCOMM_FlowReq (tRFC_MCB *p_mcb, UINT8 dlci, UINT8 state);
+
+extern void RFCOMM_PortNegReq (tRFC_MCB *p_mcb, UINT8 dlci, tPORT_STATE *p_pars);
+extern void RFCOMM_PortNegRsp (tRFC_MCB *p_mcb, UINT8 dlci, tPORT_STATE *p_pars, UINT16 param_mask);
+
+extern void RFCOMM_ControlReq (tRFC_MCB *p_mcb, UINT8 dlci, tPORT_CTRL *p_pars);
+extern void RFCOMM_ControlRsp (tRFC_MCB *p_mcb, UINT8 dlci, tPORT_CTRL *p_pars);
+
+extern void RFCOMM_LineStatusReq (tRFC_MCB *p_mcb, UINT8 dlci, UINT8 line_status);
+/*
+** Define logical struct used for sending and decoding MX frames
+*/
+typedef struct
+{
+    UINT8   dlci;
+    UINT8   type;
+    UINT8   cr;
+    UINT8   ea;
+    UINT8   pf;
+    UINT8   credit;
+
+    union
+    {
+        struct
+        {
+            UINT8 dlci;
+            UINT8 frame_type;
+            UINT8 conv_layer;
+            UINT8 priority;
+            UINT8 t1;
+            UINT16 mtu;
+            UINT8 n2;
+            UINT8 k;
+        } pn;
+        struct
+        {
+            UINT8   *p_data;
+            UINT16  data_len;
+        } test;
+        struct
+        {
+            UINT8 dlci;
+            UINT8 signals;
+            UINT8 break_present;
+            UINT8 break_duration;
+        } msc;
+        struct
+        {
+            UINT8 ea;
+            UINT8 cr;
+            UINT8 type;
+        } nsc;
+        struct
+        {
+            UINT8 dlci;
+            UINT8 is_request;
+            UINT8 baud_rate;
+            UINT8 byte_size;
+            UINT8 stop_bits;
+            UINT8 parity;
+            UINT8 parity_type;
+            UINT8 fc_type;
+            UINT8 xon_char;
+            UINT8 xoff_char;
+            UINT16 param_mask;
+        } rpn;
+        struct
+        {
+            UINT8 dlci;
+            UINT8 line_status;
+        } rls;
+    } u;
+} MX_FRAME;
+
+#define LINE_STATUS_NO_ERROR       0x00
+#define LINE_STATUS_OVERRUN        0x02  /* Receive Overrun Error   */
+#define LINE_STATUS_RXPARITY       0x04  /* Receive Parity Error    */
+#define LINE_STATUS_FRAME          0x08  /* Receive Framing error   */
+#define LINE_STATUS_FAILED         0x10  /* Connection Failed       */
+
+/*
+** Define states and events for the RFC multiplexer state machine
+*/
+#define RFC_MX_STATE_IDLE           0
+#define RFC_MX_STATE_WAIT_CONN_CNF  1
+#define RFC_MX_STATE_CONFIGURE      2
+#define RFC_MX_STATE_SABME_WAIT_UA  3
+#define RFC_MX_STATE_WAIT_SABME     4
+#define RFC_MX_STATE_CONNECTED      5
+#define RFC_MX_STATE_DISC_WAIT_UA   6
+
+/*
+** Define port states
+*/
+#define RFC_STATE_CLOSED                0
+#define RFC_STATE_SABME_WAIT_UA         1
+#define RFC_STATE_ORIG_WAIT_SEC_CHECK   2
+#define RFC_STATE_TERM_WAIT_SEC_CHECK   3
+#define RFC_STATE_OPENED                4
+#define RFC_STATE_DISC_WAIT_UA          5
+
+/*
+** Events that can be received by multiplexer as well as port state machines
+*/
+#define RFC_EVENT_SABME                 0
+#define RFC_EVENT_UA                    1
+#define RFC_EVENT_DM                    2
+#define RFC_EVENT_DISC                  3
+#define RFC_EVENT_UIH                   4
+#define RFC_EVENT_TIMEOUT               5
+#define RFC_EVENT_BAD_FRAME             50
+/*
+** Multiplexer events
+*/
+#define RFC_MX_EVENT_START_REQ          6
+#define RFC_MX_EVENT_START_RSP          7
+#define RFC_MX_EVENT_CLOSE_REQ          8
+#define RFC_MX_EVENT_CONN_CNF           9
+#define RFC_MX_EVENT_CONN_IND           10
+#define RFC_MX_EVENT_CONF_CNF           11
+#define RFC_MX_EVENT_CONF_IND           12
+#define RFC_MX_EVENT_QOS_VIOLATION_IND  13
+#define RFC_MX_EVENT_DISC_IND           14
+#define RFC_MX_EVENT_TEST_CMD           15
+#define RFC_MX_EVENT_TEST_RSP           16
+#define RFC_MX_EVENT_FCON_CMD           17
+#define RFC_MX_EVENT_FCOFF_CMD          18
+#define RFC_MX_EVENT_NSC                19
+#define RFC_MX_EVENT_NSC_RSP            20
+
+/*
+** Port events
+*/
+#define RFC_EVENT_OPEN                  9
+#define RFC_EVENT_ESTABLISH_RSP         11
+#define RFC_EVENT_CLOSE                 12
+#define RFC_EVENT_CLEAR                 13
+#define RFC_EVENT_DATA                  14
+#define RFC_EVENT_SEC_COMPLETE          15
+
+#define RFC_T1_TIMEOUT                  20   /* seconds to wait for reply with Poll bit */
+#define RFC_PORT_T1_TIMEOUT             60   /* seconds to wait for reply with Poll bit other than MX */
+#define RFC_T2_TIMEOUT                  20   /* timeout to wait for Mx UIH */
+#define RFC_DISC_TIMEOUT                3    /* If something goes wrong and we send DISC we should not wait for min */
+#define RFC_CLOSE_TIMEOUT               10
+#define RFCOMM_CONN_TIMEOUT            120   /* first connection to be established on Mx */
+
+
+/* Define RFComm control block
+*/
+typedef struct
+{
+    MX_FRAME  rx_frame;
+    tL2CAP_APPL_INFO  reg_info;              /* L2CAP Registration info */
+    tRFC_MCB *p_rfc_lcid_mcb[MAX_L2CAP_CHANNELS];     /* MCB based on the L2CAP's lcid */
+    BOOLEAN   peer_rx_disabled;              /* If TRUE peer sent FCOFF */
+    UINT8     last_mux;                      /* Last mux allocated */
+    UINT8     last_port;                     /* Last port allocated */
+} tRFCOMM_CB;
+
+/* Main Control Block for the RFCOMM Layer (PORT and RFC) */
+typedef struct
+{
+    tRFCOMM_CB  rfc;
+    tPORT_CB    port;
+    UINT8       trace_level;
+} tRFC_CB;
+
+
+#if RFC_DYNAMIC_MEMORY == FALSE
+extern tRFC_CB  rfc_cb;
+#else
+extern tRFC_CB *rfc_cb_ptr;
+#define rfc_cb (*rfc_cb_ptr)
+#endif
+
+/* Timer running on the multiplexor channel while no DLCI connection is opened */
+#define RFC_MCB_INIT_INACT_TIMER    60  /* in seconds */
+
+/* Timer running on the multiplexor channel after last DLCI is released */
+#define RFC_MCB_RELEASE_INACT_TIMER 2   /* in seconds */
+
+/*
+** Define RFCOMM frame processing errors
+*/
+#define RFCOMM_ERR_BAD_SABME        1
+#define RFCOMM_ERR_BAD_UA           2
+#define RFCOMM_ERR_BAD_DM           3
+#define RFCOMM_ERR_BAD_DISC         4
+#define RFCOMM_ERR_BAD_UIH          5
+
+#ifdef RFCOMM_PRECALC_FCS
+
+#define RFCOMM_SABME_FCS(p_data, cr, dlci) rfc_sabme_fcs[cr][dlci]
+#define RFCOMM_UA_FCS(p_data, cr, dlci)    rfc_ua_fcs[cr][dlci]
+#define RFCOMM_DM_FCS(p_data, cr, dlci)    rfc_dm_fcs[cr][dlci]
+#define RFCOMM_DISC_FCS(p_data, cr, dlci)  rfc_disc_fcs[cr][dlci]
+#define RFCOMM_UIH_FCS(p_data, dlci)       rfc_uih_fcs[dlci]
+
+#else
+
+extern  UINT8 rfc_calc_fcs (UINT16 len, UINT8 *p);
+
+#define RFCOMM_SABME_FCS(p_data, cr, dlci) rfc_calc_fcs(3, p_data)
+#define RFCOMM_UA_FCS(p_data, cr, dlci)    rfc_calc_fcs(3, p_data)
+#define RFCOMM_DM_FCS(p_data, cr, dlci)    rfc_calc_fcs(3, p_data)
+#define RFCOMM_DISC_FCS(p_data, cr, dlci)  rfc_calc_fcs(3, p_data)
+#define RFCOMM_UIH_FCS(p_data, dlci)       rfc_calc_fcs(2, p_data)
+
+#endif
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern void rfc_mx_sm_execute (tRFC_MCB *p_mcb, UINT16 event, void *p_data);
+
+/*
+** Functions provided by the rfc_port_fsm.c
+*/
+extern void rfc_port_sm_execute (tPORT *p_port, UINT16 event, void *p_data);
+
+
+extern void rfc_process_pn (tRFC_MCB *p_rfc_mcb, BOOLEAN is_command, MX_FRAME *p_frame);
+extern void rfc_process_msc (tRFC_MCB *p_rfc_mcb, BOOLEAN is_command, MX_FRAME *p_frame);
+extern void rfc_process_rpn (tRFC_MCB *p_rfc_mcb, BOOLEAN is_command, BOOLEAN is_request, MX_FRAME *p_frame);
+extern void rfc_process_rls (tRFC_MCB *p_rfc_mcb, BOOLEAN is_command, MX_FRAME *p_frame);
+extern void rfc_process_nsc (tRFC_MCB *p_rfc_mcb, MX_FRAME *p_frame);
+extern void rfc_process_test_rsp (tRFC_MCB *p_rfc_mcb, BT_HDR *p_buf);
+extern void rfc_process_fcon (tRFC_MCB *p_rfc_mcb, BOOLEAN is_command);
+extern void rfc_process_fcoff (tRFC_MCB *p_rfc_mcb, BOOLEAN is_command);
+extern void rfc_process_l2cap_congestion (tRFC_MCB *p_mcb, BOOLEAN is_congested);
+
+/*
+** Functions provided by the rfc_utils.c
+*/
+tRFC_MCB  *rfc_alloc_multiplexer_channel (BD_ADDR bd_addr, BOOLEAN is_initiator);
+extern void      rfc_release_multiplexer_channel (tRFC_MCB *p_rfc_mcb);
+extern void      rfc_timer_start (tRFC_MCB *p_rfc_mcb, UINT16 timeout);
+extern void      rfc_timer_stop (tRFC_MCB *p_rfc_mcb);
+extern void      rfc_port_timer_start (tPORT *p_port, UINT16 tout);
+extern void      rfc_port_timer_stop (tPORT *p_port);
+
+BOOLEAN   rfc_check_uih_fcs (UINT8 dlci, UINT8 received_fcs);
+BOOLEAN   rfc_check_fcs (UINT16 len, UINT8 *p, UINT8 received_fcs);
+tRFC_MCB  *rfc_find_lcid_mcb (UINT16 lcid);
+extern void      rfc_save_lcid_mcb (tRFC_MCB *p_rfc_mcb, UINT16 lcid);
+extern void      rfc_check_mcb_active (tRFC_MCB *p_mcb);
+extern void      rfc_port_closed (tPORT *p_port);
+extern void      rfc_sec_check_complete (BD_ADDR bd_addr, tBT_TRANSPORT transport,void *p_ref_data, UINT8 res);
+extern void      rfc_inc_credit (tPORT *p_port, UINT8 credit);
+extern void      rfc_dec_credit (tPORT *p_port);
+extern void      rfc_check_send_cmd(tRFC_MCB *p_mcb, BT_HDR *p_buf);
+
+/*
+** Functions provided by the rfc_ts_frames.c
+*/
+extern void     rfc_send_sabme (tRFC_MCB *p_rfc_mcb, UINT8 dlci);
+extern void     rfc_send_ua (tRFC_MCB *p_rfc_mcb, UINT8 dlci);
+extern void     rfc_send_dm (tRFC_MCB *p_rfc_mcb, UINT8 dlci, BOOLEAN pf);
+extern void     rfc_send_disc (tRFC_MCB *p_rfc_mcb, UINT8 dlci);
+extern void     rfc_send_pn (tRFC_MCB *p_mcb, UINT8 dlci, BOOLEAN is_command, UINT16 mtu,
+                             UINT8 cl, UINT8 k);
+extern void     rfc_send_test (tRFC_MCB *p_rfc_mcb, BOOLEAN is_command, BT_HDR *p_buf);
+extern void     rfc_send_msc (tRFC_MCB *p_mcb, UINT8 dlci, BOOLEAN is_command,
+                              tPORT_CTRL *p_pars);
+extern void     rfc_send_rls (tRFC_MCB *p_mcb, UINT8 dlci, BOOLEAN is_command, UINT8 status);
+extern void     rfc_send_rpn (tRFC_MCB *p_mcb, UINT8 dlci, BOOLEAN is_command,
+                              tPORT_STATE *p_pars, UINT16 mask);
+extern void     rfc_send_fcon (tRFC_MCB *p_mcb, BOOLEAN is_command);
+extern void     rfc_send_fcoff (tRFC_MCB *p_mcb, BOOLEAN is_command);
+extern void     rfc_send_buf_uih (tRFC_MCB *p_rfc_mcb, UINT8 dlci, BT_HDR *p_buf);
+extern void     rfc_send_credit(tRFC_MCB *p_mcb, UINT8 dlci, UINT8 credit);
+extern void     rfc_process_mx_message (tRFC_MCB *p_rfc_mcb, BT_HDR *p_buf);
+extern UINT8    rfc_parse_data (tRFC_MCB *p_rfc_mcb, MX_FRAME *p_frame, BT_HDR *p_buf);
+
+/*
+** Functions provided by the rfc_disp.c
+*/
+
+
+
+/* Call back functions from RFCOMM */
+extern void rfcomm_l2cap_if_init (void);
+
+extern void PORT_StartInd (tRFC_MCB *p_mcb);
+extern void PORT_StartCnf (tRFC_MCB *p_mcb, UINT16 result);
+
+extern void PORT_CloseInd (tRFC_MCB *p_mcb);
+extern void Port_TimeOutCloseMux (tRFC_MCB *p_mcb);
+
+extern void PORT_DlcEstablishInd (tRFC_MCB *p_mcb, UINT8 dlci, UINT16 mtu);
+extern void PORT_DlcEstablishCnf (tRFC_MCB *p_mcb, UINT8 dlci, UINT16 mtu, UINT16 result);
+
+extern void PORT_DataInd (tRFC_MCB *p_mcb, UINT8 dlci, BT_HDR *p_buf);
+
+extern void PORT_DlcReleaseInd (tRFC_MCB *p_mcb, UINT8 dlci);
+
+extern void PORT_ParNegInd (tRFC_MCB *p_mcb, UINT8 dlci, UINT16 mtu, UINT8 cl, UINT8 k);
+extern void PORT_ParNegCnf (tRFC_MCB *p_mcb, UINT8 dlci, UINT16 mtu, UINT8 cl, UINT8 k);
+
+extern void PORT_TestCnf (tRFC_MCB *p_mcb, UINT8 *p_data, UINT16 len);
+
+extern void PORT_FlowInd (tRFC_MCB *p_mcb, UINT8 dlci, BOOLEAN fc);
+
+extern void PORT_PortNegInd (tRFC_MCB *p_mcb, UINT8 dlci, tPORT_STATE *p_pars, UINT16 param_mask);
+extern void PORT_PortNegCnf (tRFC_MCB *p_mcb, UINT8 dlci, tPORT_STATE *p_pars, UINT16 result);
+
+extern void PORT_ControlInd (tRFC_MCB *p_mcb, UINT8 dlci, tPORT_CTRL *p_pars);
+extern void PORT_ControlCnf (tRFC_MCB *p_mcb, UINT8 dlci, tPORT_CTRL *p_pars);
+
+extern void PORT_LineStatusInd (tRFC_MCB *p_mcb, UINT8 dlci, UINT8 line_status);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/rtkbt/code/bt/stack/rfcomm/rfc_l2cap_if.c b/rtkbt/code/bt/stack/rfcomm/rfc_l2cap_if.c
new file mode 100755
index 0000000..05f4994
--- /dev/null
+++ b/rtkbt/code/bt/stack/rfcomm/rfc_l2cap_if.c
@@ -0,0 +1,452 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains L2CAP interface functions
+ *
+ ******************************************************************************/
+
+#include <stddef.h>
+#include "bt_target.h"
+
+#include "osi/include/time.h"
+#include "bt_common.h"
+
+#include "rfcdefs.h"
+#include "port_api.h"
+#include "port_int.h"
+#include "l2c_api.h"
+#include "l2cdefs.h"
+#include "rfc_int.h"
+#include "bt_utils.h"
+
+
+/*
+** Define Callback functions to be called by L2CAP
+*/
+static void RFCOMM_ConnectInd (BD_ADDR bd_addr, UINT16 lcid, UINT16 psm, UINT8 id);
+static void RFCOMM_ConnectCnf (UINT16  lcid, UINT16 err);
+static void RFCOMM_ConfigInd (UINT16 lcid, tL2CAP_CFG_INFO *p_cfg);
+static void RFCOMM_ConfigCnf (UINT16 lcid, tL2CAP_CFG_INFO *p_cfg);
+static void RFCOMM_DisconnectInd (UINT16 lcid, BOOLEAN is_clear);
+static void RFCOMM_QoSViolationInd (BD_ADDR bd_addr);
+static void RFCOMM_BufDataInd (UINT16 lcid, BT_HDR *p_buf);
+static void RFCOMM_CongestionStatusInd (UINT16 lcid, BOOLEAN is_congested);
+
+
+/*******************************************************************************
+**
+** Function         rfcomm_l2cap_if_init
+**
+** Description      This function is called during the RFCOMM task startup
+**                  to register interface functions with L2CAP.
+**
+*******************************************************************************/
+void rfcomm_l2cap_if_init (void)
+{
+    tL2CAP_APPL_INFO *p_l2c = &rfc_cb.rfc.reg_info;
+
+    p_l2c->pL2CA_ConnectInd_Cb       = RFCOMM_ConnectInd;
+    p_l2c->pL2CA_ConnectCfm_Cb       = RFCOMM_ConnectCnf;
+    p_l2c->pL2CA_ConnectPnd_Cb       = NULL;
+    p_l2c->pL2CA_ConfigInd_Cb        = RFCOMM_ConfigInd;
+    p_l2c->pL2CA_ConfigCfm_Cb        = RFCOMM_ConfigCnf;
+    p_l2c->pL2CA_DisconnectInd_Cb    = RFCOMM_DisconnectInd;
+    p_l2c->pL2CA_DisconnectCfm_Cb    = NULL;
+    p_l2c->pL2CA_QoSViolationInd_Cb  = RFCOMM_QoSViolationInd;
+    p_l2c->pL2CA_DataInd_Cb          = RFCOMM_BufDataInd;
+    p_l2c->pL2CA_CongestionStatus_Cb = RFCOMM_CongestionStatusInd;
+    p_l2c->pL2CA_TxComplete_Cb       = NULL;
+
+
+    L2CA_Register (BT_PSM_RFCOMM, p_l2c);
+}
+
+
+/*******************************************************************************
+**
+** Function         RFCOMM_ConnectInd
+**
+** Description      This is a callback function called by L2CAP when
+**                  L2CA_ConnectInd received.  Allocate multiplexer control block
+**                  and dispatch the event to it.
+**
+*******************************************************************************/
+void RFCOMM_ConnectInd (BD_ADDR bd_addr, UINT16 lcid, UINT16 psm, UINT8 id)
+{
+    tRFC_MCB *p_mcb = rfc_alloc_multiplexer_channel(bd_addr, FALSE);
+    UNUSED(psm);
+
+    if ((p_mcb)&&(p_mcb->state != RFC_MX_STATE_IDLE))
+    {
+        /* if this is collision case */
+        if ((p_mcb->is_initiator)&&(p_mcb->state == RFC_MX_STATE_WAIT_CONN_CNF))
+        {
+            p_mcb->pending_lcid = lcid;
+            p_mcb->pending_id   = id;
+
+            /* wait random timeout (2 - 12) to resolve collision */
+            /* if peer gives up then local device rejects incoming connection and continues as initiator */
+            /* if timeout, local device disconnects outgoing connection and continues as acceptor */
+            RFCOMM_TRACE_DEBUG ("RFCOMM_ConnectInd start timer for collision, initiator's LCID(0x%x), acceptor's LCID(0x%x)",
+                                  p_mcb->lcid, p_mcb->pending_lcid);
+
+            rfc_timer_start(p_mcb, (UINT16)(time_get_os_boottime_ms() % 10 + 2));
+            return;
+        }
+        else
+        {
+            /* we cannot accept connection request from peer at this state */
+            /* don't update lcid */
+            p_mcb = NULL;
+        }
+    }
+    else
+    {
+        /* store mcb even if null */
+        rfc_save_lcid_mcb (p_mcb, lcid);
+    }
+
+    if (p_mcb == NULL)
+    {
+        L2CA_ConnectRsp (bd_addr, id, lcid, L2CAP_CONN_NO_RESOURCES, 0);
+        return;
+    }
+    p_mcb->lcid     = lcid;
+
+    rfc_mx_sm_execute (p_mcb, RFC_MX_EVENT_CONN_IND, &id);
+}
+
+
+/*******************************************************************************
+**
+** Function         RFCOMM_ConnectCnf
+**
+** Description      This is a callback function called by L2CAP when
+**                  L2CA_ConnectCnf received.  Save L2CAP handle and dispatch
+**                  event to the FSM.
+**
+*******************************************************************************/
+void RFCOMM_ConnectCnf (UINT16 lcid, UINT16 result)
+{
+    tRFC_MCB *p_mcb = rfc_find_lcid_mcb (lcid);
+
+    if (!p_mcb)
+    {
+        RFCOMM_TRACE_ERROR ("RFCOMM_ConnectCnf LCID:0x%x", lcid);
+        return;
+    }
+
+    if (p_mcb->pending_lcid)
+    {
+        /* if peer rejects our connect request but peer's connect request is pending */
+        if (result != L2CAP_CONN_OK )
+        {
+            UINT16 i;
+            UINT8  idx;
+
+            RFCOMM_TRACE_DEBUG ("RFCOMM_ConnectCnf retry as acceptor on pending LCID(0x%x)", p_mcb->pending_lcid);
+
+            /* remove mcb from mapping table */
+            rfc_save_lcid_mcb (NULL, p_mcb->lcid);
+
+            p_mcb->lcid         = p_mcb->pending_lcid;
+            p_mcb->is_initiator = FALSE;
+            p_mcb->state        = RFC_MX_STATE_IDLE;
+
+            /* store mcb into mapping table */
+            rfc_save_lcid_mcb (p_mcb, p_mcb->lcid);
+
+            /* update direction bit */
+            for (i = 0; i < RFCOMM_MAX_DLCI; i += 2)
+            {
+                if ((idx = p_mcb->port_inx[i]) != 0)
+                {
+                    p_mcb->port_inx[i] = 0;
+                    p_mcb->port_inx[i+1] = idx;
+                    rfc_cb.port.port[idx - 1].dlci += 1;
+                    RFCOMM_TRACE_DEBUG ("RFCOMM MX - DLCI:%d -> %d", i, rfc_cb.port.port[idx - 1].dlci);
+                }
+            }
+
+            rfc_mx_sm_execute (p_mcb, RFC_MX_EVENT_CONN_IND, &(p_mcb->pending_id));
+            return;
+        }
+        else
+        {
+            RFCOMM_TRACE_DEBUG ("RFCOMM_ConnectCnf peer gave up pending LCID(0x%x)", p_mcb->pending_lcid);
+
+            /* Peer gave up his connection request, make sure cleaning up L2CAP channel */
+            L2CA_ConnectRsp (p_mcb->bd_addr, p_mcb->pending_id, p_mcb->pending_lcid, L2CAP_CONN_NO_RESOURCES, 0);
+
+            p_mcb->pending_lcid = 0;
+        }
+    }
+
+    /* Save LCID to be used in all consecutive calls to L2CAP */
+    p_mcb->lcid         = lcid;
+
+    rfc_mx_sm_execute (p_mcb, RFC_MX_EVENT_CONN_CNF, &result);
+}
+
+
+/*******************************************************************************
+**
+** Function         RFCOMM_ConfigInd
+**
+** Description      This is a callback function called by L2CAP when
+**                  L2CA_ConfigInd received.  Save parameters in the control
+**                  block and dispatch event to the FSM.
+**
+*******************************************************************************/
+void RFCOMM_ConfigInd (UINT16 lcid, tL2CAP_CFG_INFO *p_cfg)
+{
+    tRFC_MCB *p_mcb = rfc_find_lcid_mcb (lcid);
+
+    if (!p_mcb)
+    {
+        RFCOMM_TRACE_ERROR ("RFCOMM_ConfigInd LCID:0x%x", lcid);
+        return;
+    }
+
+    rfc_mx_sm_execute (p_mcb, RFC_MX_EVENT_CONF_IND, (void *)p_cfg);
+}
+
+
+/*******************************************************************************
+**
+** Function         RFCOMM_ConfigCnf
+**
+** Description      This is a callback function called by L2CAP when
+**                  L2CA_ConfigCnf received.  Save L2CAP handle and dispatch
+**                  event to the FSM.
+**
+*******************************************************************************/
+void RFCOMM_ConfigCnf (UINT16 lcid, tL2CAP_CFG_INFO *p_cfg)
+{
+    tRFC_MCB *p_mcb = rfc_find_lcid_mcb (lcid);
+
+    if (!p_mcb)
+    {
+        RFCOMM_TRACE_ERROR ("RFCOMM_ConfigCnf no MCB LCID:0x%x", lcid);
+        return;
+    }
+
+    rfc_mx_sm_execute (p_mcb, RFC_MX_EVENT_CONF_CNF, (void *)p_cfg);
+}
+
+
+/*******************************************************************************
+**
+** Function         RFCOMM_QoSViolationInd
+**
+** Description      This is a callback function called by L2CAP when
+**                  L2CA_QoSViolationIndInd received.  Dispatch event to the FSM.
+**
+*******************************************************************************/
+void RFCOMM_QoSViolationInd (BD_ADDR bd_addr)
+{
+    UNUSED(bd_addr);
+}
+
+
+/*******************************************************************************
+**
+** Function         RFCOMM_DisconnectInd
+**
+** Description      This is a callback function called by L2CAP when
+**                  L2CA_DisconnectInd received.  Dispatch event to the FSM.
+**
+*******************************************************************************/
+void RFCOMM_DisconnectInd (UINT16 lcid, BOOLEAN is_conf_needed)
+{
+    tRFC_MCB *p_mcb = rfc_find_lcid_mcb (lcid);
+
+    if (is_conf_needed)
+    {
+        L2CA_DisconnectRsp (lcid);
+    }
+
+    if (!p_mcb)
+    {
+        RFCOMM_TRACE_WARNING ("RFCOMM_DisconnectInd LCID:0x%x", lcid);
+        return;
+    }
+
+    rfc_mx_sm_execute (p_mcb, RFC_MX_EVENT_DISC_IND, NULL);
+}
+
+
+/*******************************************************************************
+**
+** Function         RFCOMM_BufDataInd
+**
+** Description      This is a callback function called by L2CAP when
+**                  data RFCOMM frame is received.  Parse the frames, check
+**                  the checksum and dispatch event to multiplexer or port
+**                  state machine depending on the frame destination.
+**
+*******************************************************************************/
+void RFCOMM_BufDataInd (UINT16 lcid, BT_HDR *p_buf)
+{
+    tRFC_MCB *p_mcb = rfc_find_lcid_mcb (lcid);
+    tPORT    *p_port;
+    UINT8    event;
+
+
+    if (!p_mcb)
+    {
+        RFCOMM_TRACE_WARNING ("RFCOMM_BufDataInd LCID:0x%x", lcid);
+        osi_free(p_buf);
+        return;
+    }
+
+    event = rfc_parse_data (p_mcb, &rfc_cb.rfc.rx_frame, p_buf);
+
+    /* If the frame did not pass validation just ignore it */
+    if (event == RFC_EVENT_BAD_FRAME)
+    {
+        osi_free(p_buf);
+        return;
+    }
+
+    if (rfc_cb.rfc.rx_frame.dlci == RFCOMM_MX_DLCI)
+    {
+        /* Take special care of the Multiplexer Control Messages */
+        if (event == RFC_EVENT_UIH)
+        {
+            rfc_process_mx_message (p_mcb, p_buf);
+            return;
+        }
+
+        /* Other multiplexer events go to state machine */
+        rfc_mx_sm_execute (p_mcb, event, NULL);
+        osi_free(p_buf);
+        return;
+    }
+
+    /* The frame was received on the data channel DLCI, verify that DLC exists */
+    if (((p_port = port_find_mcb_dlci_port (p_mcb, rfc_cb.rfc.rx_frame.dlci)) == NULL)
+     || (!p_port->rfc.p_mcb))
+    {
+        /* If this is a SABME on the new port, check if any appl is waiting for it */
+        if (event != RFC_EVENT_SABME)
+        {
+            if (( p_mcb->is_initiator && !rfc_cb.rfc.rx_frame.cr)
+             || (!p_mcb->is_initiator &&  rfc_cb.rfc.rx_frame.cr))
+                rfc_send_dm (p_mcb, rfc_cb.rfc.rx_frame.dlci, rfc_cb.rfc.rx_frame.pf);
+            osi_free(p_buf);
+            return;
+        }
+
+        if ((p_port = port_find_dlci_port (rfc_cb.rfc.rx_frame.dlci)) == NULL)
+        {
+            rfc_send_dm (p_mcb, rfc_cb.rfc.rx_frame.dlci, TRUE);
+            osi_free(p_buf);
+            return;
+        }
+        p_mcb->port_inx[rfc_cb.rfc.rx_frame.dlci] = p_port->inx;
+        p_port->rfc.p_mcb = p_mcb;
+    }
+
+    if (event == RFC_EVENT_UIH)
+    {
+
+        if (p_buf->len > 0)
+            rfc_port_sm_execute (p_port, event, p_buf);
+        else
+            osi_free(p_buf);
+
+        if (rfc_cb.rfc.rx_frame.credit != 0)
+            rfc_inc_credit (p_port, rfc_cb.rfc.rx_frame.credit);
+
+        return;
+    }
+    rfc_port_sm_execute (p_port, event,  NULL);
+    osi_free(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         RFCOMM_CongestionStatusInd
+**
+** Description      This is a callback function called by L2CAP when
+**                  data RFCOMM L2CAP congestion status changes
+**
+*******************************************************************************/
+void RFCOMM_CongestionStatusInd (UINT16 lcid, BOOLEAN is_congested)
+{
+    tRFC_MCB *p_mcb = rfc_find_lcid_mcb (lcid);
+
+    if (!p_mcb)
+    {
+        RFCOMM_TRACE_ERROR ("RFCOMM_CongestionStatusInd dropped LCID:0x%x", lcid);
+        return;
+    }
+    else
+    {
+        RFCOMM_TRACE_EVENT ("RFCOMM_CongestionStatusInd LCID:0x%x", lcid);
+    }
+    rfc_process_l2cap_congestion (p_mcb, is_congested);
+}
+
+/*******************************************************************************
+**
+** Function         rfc_find_lcid_mcb
+**
+** Description      This function returns MCB block supporting local cid
+**
+*******************************************************************************/
+tRFC_MCB *rfc_find_lcid_mcb (UINT16 lcid)
+{
+    tRFC_MCB *p_mcb;
+
+    if (lcid - L2CAP_BASE_APPL_CID >= MAX_L2CAP_CHANNELS)
+    {
+        RFCOMM_TRACE_ERROR ("rfc_find_lcid_mcb LCID:0x%x", lcid);
+        return (NULL);
+    }
+    else
+    {
+        if ((p_mcb = rfc_cb.rfc.p_rfc_lcid_mcb[lcid - L2CAP_BASE_APPL_CID]) != NULL)
+        {
+            if (p_mcb->lcid != lcid)
+            {
+                RFCOMM_TRACE_WARNING ("rfc_find_lcid_mcb LCID reused LCID:0x%x current:0x%x", lcid, p_mcb->lcid);
+                return (NULL);
+            }
+        }
+    }
+    return (p_mcb);
+}
+
+
+/*******************************************************************************
+**
+** Function         rfc_save_lcid_mcb
+**
+** Description      This function returns MCB block supporting local cid
+**
+*******************************************************************************/
+void rfc_save_lcid_mcb(tRFC_MCB *p_mcb, UINT16 lcid)
+{
+    if (lcid < L2CAP_BASE_APPL_CID)
+        return;
+    rfc_cb.rfc.p_rfc_lcid_mcb[lcid - L2CAP_BASE_APPL_CID] = p_mcb;
+}
diff --git a/rtkbt/code/bt/stack/rfcomm/rfc_mx_fsm.c b/rtkbt/code/bt/stack/rfcomm/rfc_mx_fsm.c
new file mode 100755
index 0000000..a12ae96
--- /dev/null
+++ b/rtkbt/code/bt/stack/rfcomm/rfc_mx_fsm.c
@@ -0,0 +1,679 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains state machine and action routines for multiplexer
+ *  channel of the RFCOMM unit
+ *
+ ******************************************************************************/
+#include <string.h>
+#include "bt_common.h"
+#include "bt_types.h"
+#include "rfcdefs.h"
+#include "l2cdefs.h"
+#include "port_api.h"
+#include "port_int.h"
+#include "l2c_api.h"
+#include "rfc_int.h"
+#include "bt_utils.h"
+
+#define L2CAP_SUCCESS   0
+#define L2CAP_ERROR     1
+
+
+/********************************************************************************/
+/*              L O C A L    F U N C T I O N     P R O T O T Y P E S            */
+/********************************************************************************/
+static void rfc_mx_sm_state_idle (tRFC_MCB *p_mcb, UINT16 event, void *p_data);
+static void rfc_mx_sm_state_wait_conn_cnf (tRFC_MCB *p_mcb, UINT16 event, void *p_data);
+static void rfc_mx_sm_state_configure (tRFC_MCB *p_mcb, UINT16 event, void *p_data);
+static void rfc_mx_sm_sabme_wait_ua (tRFC_MCB *p_mcb, UINT16 event, void *p_data);
+static void rfc_mx_sm_state_wait_sabme (tRFC_MCB *p_mcb, UINT16 event, void *p_data);
+static void rfc_mx_sm_state_connected (tRFC_MCB *p_mcb, UINT16 event, void *p_data);
+static void rfc_mx_sm_state_disc_wait_ua (tRFC_MCB *p_mcb, UINT16 event, void *p_data);
+
+static void rfc_mx_send_config_req (tRFC_MCB *p_mcb);
+static void rfc_mx_conf_ind (tRFC_MCB *p_mcb, tL2CAP_CFG_INFO *p_cfg);
+static void rfc_mx_conf_cnf (tRFC_MCB *p_mcb, tL2CAP_CFG_INFO *p_cfg);
+
+
+
+/*******************************************************************************
+**
+** Function         rfc_mx_sm_execute
+**
+** Description      This function sends multiplexor events through the state
+**                  machine.
+**
+** Returns          void
+**
+*******************************************************************************/
+void rfc_mx_sm_execute (tRFC_MCB *p_mcb, UINT16 event, void *p_data)
+{
+    switch (p_mcb->state)
+    {
+    case RFC_MX_STATE_IDLE:
+        rfc_mx_sm_state_idle (p_mcb, event, p_data);
+        break;
+
+    case RFC_MX_STATE_WAIT_CONN_CNF:
+        rfc_mx_sm_state_wait_conn_cnf (p_mcb, event, p_data);
+        break;
+
+    case RFC_MX_STATE_CONFIGURE:
+        rfc_mx_sm_state_configure (p_mcb, event, p_data);
+        break;
+
+    case RFC_MX_STATE_SABME_WAIT_UA:
+        rfc_mx_sm_sabme_wait_ua (p_mcb, event, p_data);
+        break;
+
+    case RFC_MX_STATE_WAIT_SABME:
+        rfc_mx_sm_state_wait_sabme (p_mcb, event, p_data);
+        break;
+
+    case RFC_MX_STATE_CONNECTED:
+        rfc_mx_sm_state_connected (p_mcb, event, p_data);
+        break;
+
+    case RFC_MX_STATE_DISC_WAIT_UA:
+        rfc_mx_sm_state_disc_wait_ua (p_mcb, event, p_data);
+        break;
+
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         rfc_mx_sm_state_idle
+**
+** Description      This function handles events when the multiplexer is in
+**                  IDLE state. This state exists when connection is being
+**                  initially established.
+**
+** Returns          void
+**
+*******************************************************************************/
+void rfc_mx_sm_state_idle (tRFC_MCB *p_mcb, UINT16 event, void *p_data)
+{
+    RFCOMM_TRACE_EVENT ("rfc_mx_sm_state_idle - evt:%d", event);
+    switch (event)
+    {
+    case RFC_MX_EVENT_START_REQ:
+
+        /* Initialize L2CAP MTU */
+        p_mcb->peer_l2cap_mtu = L2CAP_DEFAULT_MTU - RFCOMM_MIN_OFFSET - 1;
+
+        UINT16 lcid = L2CA_ConnectReq(BT_PSM_RFCOMM, p_mcb->bd_addr);
+        if (lcid == 0) {
+            rfc_save_lcid_mcb(NULL, p_mcb->lcid);
+            p_mcb->lcid = 0;
+            PORT_StartCnf(p_mcb, RFCOMM_ERROR);
+            return;
+        }
+        p_mcb->lcid = lcid;
+        /* Save entry for quicker access to mcb based on the LCID */
+        rfc_save_lcid_mcb (p_mcb, p_mcb->lcid);
+
+        p_mcb->state = RFC_MX_STATE_WAIT_CONN_CNF;
+        return;
+
+    case RFC_MX_EVENT_START_RSP:
+    case RFC_MX_EVENT_CONN_CNF:
+    case RFC_MX_EVENT_CONF_IND:
+    case RFC_MX_EVENT_CONF_CNF:
+        RFCOMM_TRACE_ERROR ("Mx error state %d event %d", p_mcb->state, event);
+        return;
+
+    case RFC_MX_EVENT_CONN_IND:
+
+        rfc_timer_start (p_mcb, RFCOMM_CONN_TIMEOUT);
+        L2CA_ConnectRsp (p_mcb->bd_addr, *((UINT8 *)p_data), p_mcb->lcid, L2CAP_CONN_OK, 0);
+
+        rfc_mx_send_config_req (p_mcb);
+
+        p_mcb->state = RFC_MX_STATE_CONFIGURE;
+        return;
+
+    case RFC_EVENT_SABME:
+        break;
+
+    case RFC_EVENT_UA:
+    case RFC_EVENT_DM:
+        return;
+
+    case RFC_EVENT_DISC:
+        rfc_send_dm (p_mcb, RFCOMM_MX_DLCI, TRUE);
+        return;
+
+    case RFC_EVENT_UIH:
+        rfc_send_dm (p_mcb, RFCOMM_MX_DLCI, FALSE);
+        return;
+    }
+    RFCOMM_TRACE_EVENT ("RFCOMM MX ignored - evt:%d in state:%d", event, p_mcb->state);
+}
+
+
+/*******************************************************************************
+**
+** Function         rfc_mx_sm_state_wait_conn_cnf
+**
+** Description      This function handles events when the multiplexer is
+**                  waiting for Connection Confirm from L2CAP.
+**
+** Returns          void
+**
+*******************************************************************************/
+void rfc_mx_sm_state_wait_conn_cnf (tRFC_MCB *p_mcb, UINT16 event, void *p_data)
+{
+    RFCOMM_TRACE_EVENT ("rfc_mx_sm_state_wait_conn_cnf - evt:%d", event);
+    switch (event)
+    {
+    case RFC_MX_EVENT_START_REQ:
+        RFCOMM_TRACE_ERROR ("Mx error state %d event %d", p_mcb->state, event);
+        return;
+
+    /* There is some new timing so that Config Ind comes before security is completed
+       so we are still waiting fo the confirmation. */
+    case RFC_MX_EVENT_CONF_IND:
+        rfc_mx_conf_ind (p_mcb, (tL2CAP_CFG_INFO *)p_data);
+        return;
+
+    case RFC_MX_EVENT_CONN_CNF:
+        if (*((UINT16 *)p_data) != L2CAP_SUCCESS)
+        {
+            p_mcb->state = RFC_MX_STATE_IDLE;
+
+            PORT_StartCnf (p_mcb, *((UINT16 *)p_data));
+            return;
+        }
+        p_mcb->state = RFC_MX_STATE_CONFIGURE;
+        rfc_mx_send_config_req (p_mcb);
+        return;
+
+    case RFC_MX_EVENT_DISC_IND:
+        p_mcb->state = RFC_MX_STATE_IDLE;
+        PORT_CloseInd (p_mcb);
+        return;
+
+    case RFC_EVENT_TIMEOUT:
+        p_mcb->state = RFC_MX_STATE_IDLE;
+        L2CA_DisconnectReq (p_mcb->lcid);
+
+        /* we gave up outgoing connection request then try peer's request */
+        if (p_mcb->pending_lcid)
+        {
+            UINT16 i;
+            UINT8  idx;
+
+            RFCOMM_TRACE_DEBUG ("RFCOMM MX retry as acceptor in collision case - evt:%d in state:%d", event, p_mcb->state);
+
+            rfc_save_lcid_mcb (NULL, p_mcb->lcid);
+            p_mcb->lcid = p_mcb->pending_lcid;
+            rfc_save_lcid_mcb (p_mcb, p_mcb->lcid);
+
+            p_mcb->is_initiator = FALSE;
+
+            /* update direction bit */
+            for (i = 0; i < RFCOMM_MAX_DLCI; i += 2)
+            {
+                if ((idx = p_mcb->port_inx[i]) != 0)
+                {
+                    p_mcb->port_inx[i] = 0;
+                    p_mcb->port_inx[i+1] = idx;
+                    rfc_cb.port.port[idx - 1].dlci += 1;
+                    RFCOMM_TRACE_DEBUG ("RFCOMM MX - DLCI:%d -> %d", i, rfc_cb.port.port[idx - 1].dlci);
+                }
+            }
+
+            rfc_mx_sm_execute (p_mcb, RFC_MX_EVENT_CONN_IND, &(p_mcb->pending_id));
+        }
+        else
+        {
+            PORT_CloseInd (p_mcb);
+        }
+        return;
+    }
+    RFCOMM_TRACE_EVENT ("RFCOMM MX ignored - evt:%d in state:%d", event, p_mcb->state);
+}
+
+
+/*******************************************************************************
+**
+** Function         rfc_mx_sm_state_configure
+**
+** Description      This function handles events when the multiplexer in the
+**                  configuration state.
+**
+** Returns          void
+**
+*******************************************************************************/
+void rfc_mx_sm_state_configure (tRFC_MCB *p_mcb, UINT16 event, void *p_data)
+{
+    RFCOMM_TRACE_EVENT ("rfc_mx_sm_state_configure - evt:%d", event);
+    switch (event)
+    {
+    case RFC_MX_EVENT_START_REQ:
+    case RFC_MX_EVENT_CONN_CNF:
+
+        RFCOMM_TRACE_ERROR ("Mx error state %d event %d", p_mcb->state, event);
+        return;
+
+    case RFC_MX_EVENT_CONF_IND:
+        rfc_mx_conf_ind (p_mcb, (tL2CAP_CFG_INFO *)p_data);
+        return;
+
+    case RFC_MX_EVENT_CONF_CNF:
+        rfc_mx_conf_cnf (p_mcb, (tL2CAP_CFG_INFO *)p_data);
+        return;
+
+    case RFC_MX_EVENT_DISC_IND:
+        p_mcb->state = RFC_MX_STATE_IDLE;
+        PORT_CloseInd (p_mcb);
+        return;
+
+    case RFC_EVENT_TIMEOUT:
+        p_mcb->state = RFC_MX_STATE_IDLE;
+        L2CA_DisconnectReq (p_mcb->lcid);
+
+        PORT_StartCnf (p_mcb, RFCOMM_ERROR);
+        return;
+    }
+    RFCOMM_TRACE_EVENT ("RFCOMM MX ignored - evt:%d in state:%d", event, p_mcb->state);
+}
+
+
+/*******************************************************************************
+**
+** Function         rfc_mx_sm_sabme_wait_ua
+**
+** Description      This function handles events when the multiplexer sent
+**                  SABME and is waiting for UA reply.
+**
+** Returns          void
+**
+*******************************************************************************/
+void rfc_mx_sm_sabme_wait_ua (tRFC_MCB *p_mcb, UINT16 event, void *p_data)
+{
+    UNUSED(p_data);
+
+    RFCOMM_TRACE_EVENT ("rfc_mx_sm_sabme_wait_ua - evt:%d", event);
+    switch (event)
+    {
+    case RFC_MX_EVENT_START_REQ:
+    case RFC_MX_EVENT_CONN_CNF:
+        RFCOMM_TRACE_ERROR ("Mx error state %d event %d", p_mcb->state, event);
+        return;
+
+    /* workaround: we don't support reconfig */
+    /* commented out until we support reconfig
+    case RFC_MX_EVENT_CONF_IND:
+        rfc_mx_conf_ind (p_mcb, (tL2CAP_CFG_INFO *)p_data);
+        return;
+
+    case RFC_MX_EVENT_CONF_CNF:
+        rfc_mx_conf_cnf (p_mcb, (tL2CAP_CFG_INFO *)p_data);
+        return;
+    */
+
+    case RFC_MX_EVENT_DISC_IND:
+        p_mcb->state = RFC_MX_STATE_IDLE;
+        PORT_CloseInd (p_mcb);
+        return;
+
+    case RFC_EVENT_UA:
+        rfc_timer_stop (p_mcb);
+
+        p_mcb->state      = RFC_MX_STATE_CONNECTED;
+        p_mcb->peer_ready = TRUE;
+
+        PORT_StartCnf (p_mcb, RFCOMM_SUCCESS);
+        return;
+
+    case RFC_EVENT_DM:
+        rfc_timer_stop (p_mcb);
+        /* Case falls through */
+
+    case RFC_MX_EVENT_CONF_IND: /* workaround: we don't support reconfig */
+    case RFC_MX_EVENT_CONF_CNF: /* workaround: we don't support reconfig */
+    case RFC_EVENT_TIMEOUT:
+        p_mcb->state = RFC_MX_STATE_IDLE;
+        L2CA_DisconnectReq (p_mcb->lcid);
+
+        PORT_StartCnf (p_mcb, RFCOMM_ERROR);
+        return;
+    }
+    RFCOMM_TRACE_EVENT ("RFCOMM MX ignored - evt:%d in state:%d", event, p_mcb->state);
+}
+
+/*******************************************************************************
+**
+** Function         rfc_mx_sm_state_wait_sabme
+**
+** Description      This function handles events when the multiplexer is
+**                  waiting for SABME on the acceptor side after configuration
+**
+** Returns          void
+**
+*******************************************************************************/
+void rfc_mx_sm_state_wait_sabme (tRFC_MCB *p_mcb, UINT16 event, void *p_data)
+{
+    RFCOMM_TRACE_EVENT ("rfc_mx_sm_state_wait_sabme - evt:%d", event);
+    switch (event)
+    {
+    case RFC_MX_EVENT_DISC_IND:
+        p_mcb->state = RFC_MX_STATE_IDLE;
+        PORT_CloseInd (p_mcb);
+        return;
+
+    case RFC_EVENT_SABME:
+        /* if we gave up outgoing connection request */
+        if (p_mcb->pending_lcid)
+        {
+            p_mcb->pending_lcid = 0;
+
+            rfc_send_ua (p_mcb, RFCOMM_MX_DLCI);
+
+            rfc_timer_stop (p_mcb);
+            p_mcb->state      = RFC_MX_STATE_CONNECTED;
+            p_mcb->peer_ready = TRUE;
+
+            /* MX channel collision has been resolved, continue to open ports */
+            PORT_StartCnf (p_mcb, RFCOMM_SUCCESS);
+        }
+        else
+        {
+            rfc_timer_stop (p_mcb);
+            PORT_StartInd (p_mcb);
+        }
+        return;
+
+    case RFC_MX_EVENT_START_RSP:
+        if (*((UINT16 *)p_data) != RFCOMM_SUCCESS)
+            rfc_send_dm (p_mcb, RFCOMM_MX_DLCI, TRUE);
+        else
+        {
+            rfc_send_ua (p_mcb, RFCOMM_MX_DLCI);
+
+            p_mcb->state      = RFC_MX_STATE_CONNECTED;
+            p_mcb->peer_ready = TRUE;
+            PORT_StartCnf (p_mcb, RFCOMM_SUCCESS);
+        }
+        return;
+
+    case RFC_MX_EVENT_CONF_IND: /* workaround: we don't support reconfig */
+    case RFC_MX_EVENT_CONF_CNF: /* workaround: we don't support reconfig */
+    case RFC_EVENT_TIMEOUT:
+        p_mcb->state = RFC_MX_STATE_IDLE;
+        L2CA_DisconnectReq (p_mcb->lcid);
+
+        PORT_CloseInd (p_mcb);
+        return;
+    }
+    RFCOMM_TRACE_EVENT ("RFCOMM MX ignored - evt:%d in state:%d", event, p_mcb->state);
+}
+
+
+/*******************************************************************************
+**
+** Function         rfc_mx_sm_state_connected
+**
+** Description      This function handles events when the multiplexer is
+**                  in the CONNECTED state
+**
+** Returns          void
+**
+*******************************************************************************/
+void rfc_mx_sm_state_connected (tRFC_MCB *p_mcb, UINT16 event, void *p_data)
+{
+    UNUSED(p_data);
+
+    RFCOMM_TRACE_EVENT ("rfc_mx_sm_state_connected - evt:%d", event);
+
+    switch (event)
+    {
+    case RFC_EVENT_TIMEOUT:
+    case RFC_MX_EVENT_CLOSE_REQ:
+        rfc_timer_start (p_mcb, RFC_DISC_TIMEOUT);
+        p_mcb->state = RFC_MX_STATE_DISC_WAIT_UA;
+        rfc_send_disc (p_mcb, RFCOMM_MX_DLCI);
+        return;
+
+    case RFC_MX_EVENT_DISC_IND:
+        p_mcb->state = RFC_MX_STATE_IDLE;
+        PORT_CloseInd (p_mcb);
+        return;
+
+    case RFC_EVENT_DISC:
+        /* Reply with UA.  If initiator bring down L2CAP connection */
+        /* If server wait for some time if client decide to reinitiate channel */
+        rfc_send_ua (p_mcb, RFCOMM_MX_DLCI);
+        if (p_mcb->is_initiator)
+        {
+            L2CA_DisconnectReq (p_mcb->lcid);
+        }
+        /* notify all ports that connection is gone */
+        PORT_CloseInd (p_mcb);
+        return;
+    }
+    RFCOMM_TRACE_EVENT ("RFCOMM MX ignored - evt:%d in state:%d", event, p_mcb->state);
+}
+
+
+/*******************************************************************************
+**
+** Function         rfc_mx_sm_state_disc_wait_ua
+**
+** Description      This function handles events when the multiplexer sent
+**                  DISC and is waiting for UA reply.
+**
+** Returns          void
+**
+*******************************************************************************/
+void rfc_mx_sm_state_disc_wait_ua (tRFC_MCB *p_mcb, UINT16 event, void *p_data)
+{
+    BT_HDR *p_buf;
+
+    RFCOMM_TRACE_EVENT ("rfc_mx_sm_state_disc_wait_ua - evt:%d", event);
+    switch (event)
+    {
+    case RFC_EVENT_UA:
+    case RFC_EVENT_DM:
+    case RFC_EVENT_TIMEOUT:
+        L2CA_DisconnectReq (p_mcb->lcid);
+
+        if (p_mcb->restart_required)
+        {
+            /* Start Request was received while disconnecting.  Execute it again */
+            UINT16 lcid = L2CA_ConnectReq(BT_PSM_RFCOMM, p_mcb->bd_addr);
+            if (lcid == 0) {
+                rfc_save_lcid_mcb(NULL, p_mcb->lcid);
+                p_mcb->lcid = 0;
+                PORT_StartCnf(p_mcb, RFCOMM_ERROR);
+                return;
+            }
+            p_mcb->lcid = lcid;
+            /* Save entry for quicker access to mcb based on the LCID */
+            rfc_save_lcid_mcb (p_mcb, p_mcb->lcid);
+
+            /* clean up before reuse it */
+            while ((p_buf = (BT_HDR *)fixed_queue_try_dequeue(p_mcb->cmd_q)) != NULL)
+                osi_free(p_buf);
+
+            rfc_timer_start (p_mcb, RFC_MCB_INIT_INACT_TIMER);
+
+            p_mcb->is_initiator     = TRUE;
+            p_mcb->restart_required = FALSE;
+            p_mcb->local_cfg_sent   = FALSE;
+            p_mcb->peer_cfg_rcvd    = FALSE;
+
+            p_mcb->state = RFC_MX_STATE_WAIT_CONN_CNF;
+            return;
+        }
+        rfc_release_multiplexer_channel (p_mcb);
+        return;
+
+    case RFC_EVENT_DISC:
+        rfc_send_ua (p_mcb, RFCOMM_MX_DLCI);
+        return;
+
+    case RFC_EVENT_UIH:
+        osi_free(p_data);
+        rfc_send_dm (p_mcb, RFCOMM_MX_DLCI, FALSE);
+        return;
+
+    case RFC_MX_EVENT_START_REQ:
+        p_mcb->restart_required = TRUE;
+        return;
+
+    case RFC_MX_EVENT_DISC_IND:
+        p_mcb->state = RFC_MX_STATE_IDLE;
+        PORT_CloseInd (p_mcb);
+        return;
+
+    case RFC_MX_EVENT_CLOSE_REQ:
+        return;
+
+    case RFC_MX_EVENT_QOS_VIOLATION_IND:
+        break;
+    }
+    RFCOMM_TRACE_EVENT ("RFCOMM MX ignored - evt:%d in state:%d", event, p_mcb->state);
+}
+
+
+/*******************************************************************************
+**
+** Function         rfc_mx_send_config_req
+**
+** Description      This function handles L2CA_ConnectInd message from the
+**                  L2CAP.  Accept connection.
+**
+*******************************************************************************/
+static void rfc_mx_send_config_req (tRFC_MCB *p_mcb)
+{
+    tL2CAP_CFG_INFO cfg;
+
+    RFCOMM_TRACE_EVENT ("rfc_mx_send_config_req");
+
+    memset (&cfg, 0, sizeof (tL2CAP_CFG_INFO));
+
+    cfg.mtu_present      = TRUE;
+    cfg.mtu              = L2CAP_MTU_SIZE;
+
+/* Defaults set by memset
+    cfg.flush_to_present = FALSE;
+    cfg.qos_present      = FALSE;
+    cfg.fcr_present      = FALSE;
+    cfg.fcr.mode         = L2CAP_FCR_BASIC_MODE;
+    cfg.fcs_present      = FALSE;
+    cfg.fcs              = N/A when fcs_present is FALSE;
+*/
+    L2CA_ConfigReq (p_mcb->lcid, &cfg);
+}
+
+
+/*******************************************************************************
+**
+** Function         rfc_mx_conf_cnf
+**
+** Description      This function handles L2CA_ConfigCnf message from the
+**                  L2CAP.  If result is not success tell upper layer that
+**                  start has not been accepted.  If initiator send SABME
+**                  on DLCI 0.  T1 is still running.
+**
+*******************************************************************************/
+static void rfc_mx_conf_cnf (tRFC_MCB *p_mcb, tL2CAP_CFG_INFO *p_cfg)
+{
+    RFCOMM_TRACE_EVENT ("rfc_mx_conf_cnf p_cfg:%08x res:%d ", p_cfg, (p_cfg) ? p_cfg->result : 0);
+
+    if (p_cfg->result != L2CAP_CFG_OK)
+    {
+        if (p_mcb->is_initiator)
+        {
+            PORT_StartCnf (p_mcb, p_cfg->result);
+            L2CA_DisconnectReq (p_mcb->lcid);
+        }
+        rfc_release_multiplexer_channel (p_mcb);
+        return;
+    }
+
+    p_mcb->local_cfg_sent = TRUE;
+    if ((p_mcb->state == RFC_MX_STATE_CONFIGURE) && p_mcb->peer_cfg_rcvd)
+    {
+        if (p_mcb->is_initiator)
+        {
+            p_mcb->state = RFC_MX_STATE_SABME_WAIT_UA;
+            rfc_send_sabme (p_mcb, RFCOMM_MX_DLCI);
+            rfc_timer_start (p_mcb, RFC_T1_TIMEOUT);
+        }
+        else
+        {
+            p_mcb->state = RFC_MX_STATE_WAIT_SABME;
+            rfc_timer_start (p_mcb, RFCOMM_CONN_TIMEOUT); /* - increased from T2=20 to CONN=120
+                                                to allow the user more than 10 sec to type in the
+                                                pin which can be e.g. 16 digits */
+        }
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         rfc_mx_conf_ind
+**
+** Description      This function handles L2CA_ConfigInd message from the
+**                  L2CAP.  Send the L2CA_ConfigRsp message.
+**
+*******************************************************************************/
+static void rfc_mx_conf_ind (tRFC_MCB *p_mcb, tL2CAP_CFG_INFO *p_cfg)
+{
+    /* Save peer L2CAP MTU if present */
+    /* RFCOMM adds 3-4 bytes in the beginning and 1 bytes FCS */
+    if (p_cfg->mtu_present)
+        p_mcb->peer_l2cap_mtu = p_cfg->mtu - RFCOMM_MIN_OFFSET - 1;
+    else
+        p_mcb->peer_l2cap_mtu = L2CAP_DEFAULT_MTU - RFCOMM_MIN_OFFSET - 1;
+
+    p_cfg->mtu_present      = FALSE;
+    p_cfg->flush_to_present = FALSE;
+    p_cfg->qos_present      = FALSE;
+
+    p_cfg->result = L2CAP_CFG_OK;
+
+    L2CA_ConfigRsp (p_mcb->lcid, p_cfg);
+
+    p_mcb->peer_cfg_rcvd = TRUE;
+    if ((p_mcb->state == RFC_MX_STATE_CONFIGURE) && p_mcb->local_cfg_sent)
+    {
+        if (p_mcb->is_initiator)
+        {
+            p_mcb->state = RFC_MX_STATE_SABME_WAIT_UA;
+            rfc_send_sabme (p_mcb, RFCOMM_MX_DLCI);
+            rfc_timer_start (p_mcb, RFC_T1_TIMEOUT);
+        }
+        else
+        {
+            p_mcb->state = RFC_MX_STATE_WAIT_SABME;
+            rfc_timer_start (p_mcb, RFCOMM_CONN_TIMEOUT); /* - increased from T2=20 to CONN=120
+                                                to allow the user more than 10 sec to type in the
+                                                pin which can be e.g. 16 digits */
+        }
+    }
+}
diff --git a/rtkbt/code/bt/stack/rfcomm/rfc_port_fsm.c b/rtkbt/code/bt/stack/rfcomm/rfc_port_fsm.c
new file mode 100755
index 0000000..5f9e48c
--- /dev/null
+++ b/rtkbt/code/bt/stack/rfcomm/rfc_port_fsm.c
@@ -0,0 +1,918 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains state machine and action routines for a port of the
+ *  RFCOMM unit
+ *
+ ******************************************************************************/
+#include <string.h>
+#include "bt_target.h"
+#include "bt_common.h"
+#include "rfcdefs.h"
+#include "btm_api.h"
+#include "btm_int.h"
+#include "port_api.h"
+#include "port_int.h"
+#include "rfc_int.h"
+#include "bt_utils.h"
+
+/********************************************************************************/
+/*              L O C A L    F U N C T I O N     P R O T O T Y P E S            */
+/********************************************************************************/
+static void rfc_port_sm_state_closed (tPORT *p_port, UINT16 event, void *p_data);
+static void rfc_port_sm_sabme_wait_ua (tPORT *p_port, UINT16 event, void *p_data);
+static void rfc_port_sm_opened (tPORT *p_port, UINT16 event, void *p_data);
+static void rfc_port_sm_orig_wait_sec_check (tPORT *p_port, UINT16 event, void *p_data);
+static void rfc_port_sm_term_wait_sec_check (tPORT *p_port, UINT16 event, void *p_data);
+static void rfc_port_sm_disc_wait_ua (tPORT *p_port, UINT16 event, void *p_data);
+
+static void rfc_port_uplink_data (tPORT *p_port, BT_HDR *p_buf);
+
+static void rfc_set_port_state(tPORT_STATE *port_pars, MX_FRAME *p_frame);
+
+
+/*******************************************************************************
+**
+** Function         rfc_port_sm_execute
+**
+** Description      This function sends port events through the state
+**                  machine.
+**
+** Returns          void
+**
+*******************************************************************************/
+void rfc_port_sm_execute (tPORT *p_port, UINT16 event, void *p_data)
+{
+    if (!p_port)
+    {
+        RFCOMM_TRACE_WARNING ("NULL port event %d", event);
+        return;
+    }
+
+    switch (p_port->rfc.state)
+    {
+    case RFC_STATE_CLOSED:
+        rfc_port_sm_state_closed (p_port, event, p_data);
+        break;
+
+    case RFC_STATE_SABME_WAIT_UA:
+        rfc_port_sm_sabme_wait_ua (p_port, event, p_data);
+        break;
+
+    case RFC_STATE_ORIG_WAIT_SEC_CHECK:
+        rfc_port_sm_orig_wait_sec_check (p_port, event, p_data);
+        break;
+
+    case RFC_STATE_TERM_WAIT_SEC_CHECK:
+        rfc_port_sm_term_wait_sec_check (p_port, event, p_data);
+        break;
+
+    case RFC_STATE_OPENED:
+        rfc_port_sm_opened (p_port, event, p_data);
+        break;
+
+    case RFC_STATE_DISC_WAIT_UA:
+        rfc_port_sm_disc_wait_ua (p_port, event, p_data);
+        break;
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         rfc_port_sm_state_closed
+**
+** Description      This function handles events when the port is in
+**                  CLOSED state. This state exists when port is
+**                  being initially established.
+**
+** Returns          void
+**
+*******************************************************************************/
+void rfc_port_sm_state_closed (tPORT *p_port, UINT16 event, void *p_data)
+{
+    switch (event)
+    {
+    case RFC_EVENT_OPEN:
+        p_port->rfc.state = RFC_STATE_ORIG_WAIT_SEC_CHECK;
+        btm_sec_mx_access_request (p_port->rfc.p_mcb->bd_addr, BT_PSM_RFCOMM, TRUE,
+                                   BTM_SEC_PROTO_RFCOMM, (UINT32)(p_port->dlci / 2),
+                                   &rfc_sec_check_complete, p_port);
+        return;
+
+    case RFC_EVENT_CLOSE:
+        break;
+
+    case RFC_EVENT_CLEAR:
+        return;
+
+    case RFC_EVENT_DATA:
+        osi_free(p_data);
+        break;
+
+    case RFC_EVENT_SABME:
+        /* make sure the multiplexer disconnect timer is not running (reconnect case) */
+        rfc_timer_stop(p_port->rfc.p_mcb );
+
+        /* Open will be continued after security checks are passed */
+        p_port->rfc.state = RFC_STATE_TERM_WAIT_SEC_CHECK;
+        btm_sec_mx_access_request (p_port->rfc.p_mcb->bd_addr, BT_PSM_RFCOMM, FALSE,
+                                   BTM_SEC_PROTO_RFCOMM, (UINT32)(p_port->dlci / 2),
+                                   &rfc_sec_check_complete, p_port);
+        return;
+
+    case RFC_EVENT_UA:
+        return;
+
+    case RFC_EVENT_DM:
+        rfc_port_closed (p_port);
+        return;
+
+    case RFC_EVENT_UIH:
+        osi_free(p_data);
+        rfc_send_dm (p_port->rfc.p_mcb, p_port->dlci, FALSE);
+        return;
+
+    case RFC_EVENT_DISC:
+        rfc_send_dm (p_port->rfc.p_mcb, p_port->dlci, FALSE);
+        return;
+
+    case RFC_EVENT_TIMEOUT:
+        Port_TimeOutCloseMux( p_port->rfc.p_mcb ) ;
+        RFCOMM_TRACE_ERROR ("Port error state %d event %d", p_port->rfc.state, event);
+        return;
+    }
+
+    RFCOMM_TRACE_WARNING ("Port state closed Event ignored %d", event);
+    return;
+}
+
+/*******************************************************************************
+**
+** Function         rfc_port_sm_sabme_wait_ua
+**
+** Description      This function handles events when SABME on the DLC was
+**                  sent and SM is waiting for UA or DM.
+**
+** Returns          void
+**
+*******************************************************************************/
+void rfc_port_sm_sabme_wait_ua (tPORT *p_port, UINT16 event, void *p_data)
+{
+    switch (event)
+    {
+    case RFC_EVENT_OPEN:
+    case RFC_EVENT_ESTABLISH_RSP:
+        RFCOMM_TRACE_ERROR ("Port error state %d event %d", p_port->rfc.state, event);
+        return;
+
+    case RFC_EVENT_CLOSE:
+        rfc_port_timer_start (p_port, RFC_DISC_TIMEOUT);
+        rfc_send_disc (p_port->rfc.p_mcb, p_port->dlci);
+        p_port->rfc.expected_rsp = 0;
+        p_port->rfc.state = RFC_STATE_DISC_WAIT_UA;
+        return;
+
+    case RFC_EVENT_CLEAR:
+        rfc_port_closed (p_port);
+        return;
+
+    case RFC_EVENT_DATA:
+        osi_free(p_data);
+        break;
+
+    case RFC_EVENT_UA:
+        rfc_port_timer_stop (p_port);
+        p_port->rfc.state = RFC_STATE_OPENED;
+        PORT_DlcEstablishCnf (p_port->rfc.p_mcb, p_port->dlci, p_port->rfc.p_mcb->peer_l2cap_mtu, RFCOMM_SUCCESS);
+        return;
+
+    case RFC_EVENT_DM:
+        p_port->rfc.p_mcb->is_disc_initiator = TRUE;
+        PORT_DlcEstablishCnf (p_port->rfc.p_mcb, p_port->dlci, p_port->rfc.p_mcb->peer_l2cap_mtu, RFCOMM_ERROR);
+        rfc_port_closed (p_port);
+        return;
+
+    case RFC_EVENT_DISC:
+        rfc_send_ua (p_port->rfc.p_mcb, p_port->dlci);
+        PORT_DlcEstablishCnf (p_port->rfc.p_mcb, p_port->dlci, p_port->rfc.p_mcb->peer_l2cap_mtu, RFCOMM_ERROR);
+        rfc_port_closed (p_port);
+        return;
+
+    case RFC_EVENT_SABME:
+        /* Continue to wait for the UA the SABME this side sent */
+        rfc_send_ua (p_port->rfc.p_mcb, p_port->dlci);
+        return;
+
+    case RFC_EVENT_UIH:
+        osi_free(p_data);
+        return;
+
+    case RFC_EVENT_TIMEOUT:
+        p_port->rfc.state = RFC_STATE_CLOSED;
+        PORT_DlcEstablishCnf (p_port->rfc.p_mcb, p_port->dlci, p_port->rfc.p_mcb->peer_l2cap_mtu, RFCOMM_ERROR);
+        return;
+    }
+    RFCOMM_TRACE_WARNING ("Port state sabme_wait_ua Event ignored %d", event);
+}
+
+
+/*******************************************************************************
+**
+** Function         rfc_port_sm_term_wait_sec_check
+**
+** Description      This function handles events for the port in the
+**                  WAIT_SEC_CHECK state.  SABME has been received from the
+**                  peer and Security Manager verifes BD_ADDR, before we can
+**                  send ESTABLISH_IND to the Port entity
+**
+** Returns          void
+**
+*******************************************************************************/
+void rfc_port_sm_term_wait_sec_check (tPORT *p_port, UINT16 event, void *p_data)
+{
+    switch (event)
+    {
+    case RFC_EVENT_SEC_COMPLETE:
+        if (*((UINT8 *)p_data) != BTM_SUCCESS)
+        {
+            /* Authentication/authorization failed.  If link is still  */
+            /* up send DM and check if we need to start inactive timer */
+            if (p_port->rfc.p_mcb)
+            {
+                rfc_send_dm (p_port->rfc.p_mcb, p_port->dlci, TRUE);
+                p_port->rfc.p_mcb->is_disc_initiator = TRUE;
+                port_rfc_closed (p_port, PORT_SEC_FAILED);
+            }
+        }
+        else
+        {
+            PORT_DlcEstablishInd (p_port->rfc.p_mcb, p_port->dlci, p_port->rfc.p_mcb->peer_l2cap_mtu);
+        }
+        return;
+
+    case RFC_EVENT_OPEN:
+    case RFC_EVENT_CLOSE:
+        RFCOMM_TRACE_ERROR ("Port error state %d event %d", p_port->rfc.state, event);
+        return;
+
+    case RFC_EVENT_CLEAR:
+        btm_sec_abort_access_req (p_port->rfc.p_mcb->bd_addr);
+        rfc_port_closed (p_port);
+        return;
+
+    case RFC_EVENT_DATA:
+        RFCOMM_TRACE_ERROR ("Port error state Term Wait Sec event Data");
+        osi_free(p_data);
+        return;
+
+    case RFC_EVENT_SABME:
+        /* Ignore SABME retransmission if client dares to do so */
+        return;
+
+    case RFC_EVENT_DISC:
+        btm_sec_abort_access_req (p_port->rfc.p_mcb->bd_addr);
+        p_port->rfc.state = RFC_STATE_CLOSED;
+        rfc_send_ua (p_port->rfc.p_mcb, p_port->dlci);
+
+        PORT_DlcReleaseInd (p_port->rfc.p_mcb, p_port->dlci);
+        return;
+
+    case RFC_EVENT_UIH:
+        osi_free(p_data);
+        return;
+
+    case RFC_EVENT_ESTABLISH_RSP:
+        if (*((UINT8 *)p_data) != RFCOMM_SUCCESS)
+        {
+            if (p_port->rfc.p_mcb)
+                rfc_send_dm (p_port->rfc.p_mcb, p_port->dlci, TRUE);
+        }
+        else
+        {
+            rfc_send_ua (p_port->rfc.p_mcb, p_port->dlci);
+            p_port->rfc.state = RFC_STATE_OPENED;
+        }
+        return;
+    }
+    RFCOMM_TRACE_WARNING ("Port state term_wait_sec_check Event ignored %d", event);
+}
+
+
+/*******************************************************************************
+**
+** Function         rfc_port_sm_orig_wait_sec_check
+**
+** Description      This function handles events for the port in the
+**                  ORIG_WAIT_SEC_CHECK state.  RFCOMM is waiting for Security
+**                  manager to finish before sending SABME to the peer
+**
+** Returns          void
+**
+*******************************************************************************/
+void rfc_port_sm_orig_wait_sec_check (tPORT *p_port, UINT16 event, void *p_data)
+{
+    switch (event)
+    {
+    case RFC_EVENT_SEC_COMPLETE:
+        if (*((UINT8 *)p_data) != BTM_SUCCESS)
+        {
+            p_port->rfc.p_mcb->is_disc_initiator = TRUE;
+            PORT_DlcEstablishCnf (p_port->rfc.p_mcb, p_port->dlci, 0, RFCOMM_SECURITY_ERR);
+            rfc_port_closed (p_port);
+            return;
+        }
+        rfc_send_sabme (p_port->rfc.p_mcb, p_port->dlci);
+        rfc_port_timer_start (p_port, RFC_PORT_T1_TIMEOUT);
+        p_port->rfc.state = RFC_STATE_SABME_WAIT_UA;
+        return;
+
+    case RFC_EVENT_OPEN:
+    case RFC_EVENT_SABME:       /* Peer should not use the same dlci */
+        RFCOMM_TRACE_ERROR ("Port error state %d event %d", p_port->rfc.state, event);
+        return;
+
+    case RFC_EVENT_CLOSE:
+        btm_sec_abort_access_req (p_port->rfc.p_mcb->bd_addr);
+        rfc_port_closed (p_port);
+        return;
+
+    case RFC_EVENT_DATA:
+        RFCOMM_TRACE_ERROR ("Port error state Orig Wait Sec event Data");
+        osi_free(p_data);
+        return;
+
+    case RFC_EVENT_UIH:
+        osi_free(p_data);
+        return;
+    }
+    RFCOMM_TRACE_WARNING ("Port state orig_wait_sec_check Event ignored %d", event);
+}
+
+
+/*******************************************************************************
+**
+** Function         rfc_port_sm_opened
+**
+** Description      This function handles events for the port in the OPENED
+**                  state
+**
+** Returns          void
+**
+*******************************************************************************/
+void rfc_port_sm_opened (tPORT *p_port, UINT16 event, void *p_data)
+{
+    switch (event)
+    {
+    case RFC_EVENT_OPEN:
+        RFCOMM_TRACE_ERROR ("Port error state %d event %d", p_port->rfc.state, event);
+        return;
+
+    case RFC_EVENT_CLOSE:
+        rfc_port_timer_start (p_port, RFC_DISC_TIMEOUT);
+        rfc_send_disc (p_port->rfc.p_mcb, p_port->dlci);
+        p_port->rfc.expected_rsp = 0;
+        p_port->rfc.state = RFC_STATE_DISC_WAIT_UA;
+        return;
+
+    case RFC_EVENT_CLEAR:
+        rfc_port_closed (p_port);
+        return;
+
+    case RFC_EVENT_DATA:
+        /* Send credits in the frame.  Pass them in the layer specific member of the hdr. */
+        /* There might be an initial case when we reduced rx_max and credit_rx is still */
+        /* bigger.  Make sure that we do not send 255 */
+        if ((p_port->rfc.p_mcb->flow == PORT_FC_CREDIT)
+         && (((BT_HDR *)p_data)->len < p_port->peer_mtu)
+         && (!p_port->rx.user_fc)
+         && (p_port->credit_rx_max > p_port->credit_rx))
+        {
+            ((BT_HDR *)p_data)->layer_specific = (UINT8) (p_port->credit_rx_max - p_port->credit_rx);
+            p_port->credit_rx = p_port->credit_rx_max;
+        }
+        else
+        {
+            ((BT_HDR *)p_data)->layer_specific = 0;
+        }
+        rfc_send_buf_uih (p_port->rfc.p_mcb, p_port->dlci, (BT_HDR *)p_data);
+        rfc_dec_credit (p_port);
+        return;
+
+    case RFC_EVENT_UA:
+        return;
+
+    case RFC_EVENT_SABME:
+        rfc_send_ua (p_port->rfc.p_mcb, p_port->dlci);
+        return;
+
+    case RFC_EVENT_DM:
+        PORT_DlcReleaseInd (p_port->rfc.p_mcb, p_port->dlci);
+        rfc_port_closed (p_port);
+        return;
+
+    case RFC_EVENT_DISC:
+        p_port->rfc.state = RFC_STATE_CLOSED;
+        rfc_send_ua (p_port->rfc.p_mcb, p_port->dlci);
+        if(! fixed_queue_is_empty(p_port->rx.queue))
+        {
+            /* give a chance to upper stack to close port properly */
+            RFCOMM_TRACE_DEBUG("port queue is not empty");
+            rfc_port_timer_start (p_port, RFC_DISC_TIMEOUT);
+        }
+        else
+            PORT_DlcReleaseInd (p_port->rfc.p_mcb, p_port->dlci);
+        return;
+
+    case RFC_EVENT_UIH:
+        rfc_port_uplink_data (p_port, (BT_HDR *)p_data);
+        return;
+
+    case RFC_EVENT_TIMEOUT:
+        Port_TimeOutCloseMux( p_port->rfc.p_mcb ) ;
+        RFCOMM_TRACE_ERROR ("Port error state %d event %d", p_port->rfc.state, event);
+        return;
+    }
+    RFCOMM_TRACE_WARNING ("Port state opened Event ignored %d", event);
+}
+
+
+/*******************************************************************************
+**
+** Function         rfc_port_sm_disc_wait_ua
+**
+** Description      This function handles events when DISC on the DLC was
+**                  sent and SM is waiting for UA or DM.
+**
+** Returns          void
+**
+*******************************************************************************/
+void rfc_port_sm_disc_wait_ua (tPORT *p_port, UINT16 event, void *p_data)
+{
+    switch (event)
+    {
+    case RFC_EVENT_OPEN:
+    case RFC_EVENT_ESTABLISH_RSP:
+        RFCOMM_TRACE_ERROR ("Port error state %d event %d", p_port->rfc.state, event);
+        return;
+
+    case RFC_EVENT_CLEAR:
+        rfc_port_closed (p_port);
+        return;
+
+    case RFC_EVENT_DATA:
+        osi_free(p_data);
+        return;
+
+    case RFC_EVENT_UA:
+        p_port->rfc.p_mcb->is_disc_initiator = TRUE;
+        /* Case falls through */
+
+   case RFC_EVENT_DM:
+        rfc_port_closed (p_port);
+        return;
+
+    case RFC_EVENT_SABME:
+        rfc_send_dm (p_port->rfc.p_mcb, p_port->dlci, TRUE);
+        return;
+
+    case RFC_EVENT_DISC:
+        rfc_send_dm (p_port->rfc.p_mcb, p_port->dlci, TRUE);
+        return;
+
+    case RFC_EVENT_UIH:
+        osi_free(p_data);
+        rfc_send_dm (p_port->rfc.p_mcb, p_port->dlci, FALSE);
+        return;
+
+    case RFC_EVENT_TIMEOUT:
+        rfc_port_closed (p_port);
+        return;
+    }
+
+    RFCOMM_TRACE_WARNING ("Port state disc_wait_ua Event ignored %d", event);
+}
+
+
+/*******************************************************************************
+**
+** Function         rfc_port_uplink_data
+**
+** Description      This function handles uplink information data frame.
+**
+*******************************************************************************/
+void rfc_port_uplink_data (tPORT *p_port, BT_HDR *p_buf)
+{
+    PORT_DataInd (p_port->rfc.p_mcb, p_port->dlci, p_buf);
+}
+
+
+/*******************************************************************************
+**
+** Function         rfc_process_pn
+**
+** Description      This function handles DLC parameter negotiation frame.
+**                  Record MTU and pass indication to the upper layer.
+**
+*******************************************************************************/
+void rfc_process_pn (tRFC_MCB *p_mcb, BOOLEAN is_command, MX_FRAME *p_frame)
+{
+    tPORT *p_port;
+    UINT8 dlci = p_frame->dlci;
+
+    if (is_command)
+    {
+        /* Ignore if Multiplexer is being shut down */
+        if (p_mcb->state != RFC_MX_STATE_DISC_WAIT_UA)
+        {
+            PORT_ParNegInd (p_mcb, dlci, p_frame->u.pn.mtu,
+                        p_frame->u.pn.conv_layer, p_frame->u.pn.k);
+        }
+        else
+        {
+            rfc_send_dm(p_mcb, dlci, FALSE);
+            RFCOMM_TRACE_WARNING("***** MX PN while disconnecting *****");
+        }
+
+        return;
+    }
+    /* If we are not awaiting response just ignore it */
+    p_port = port_find_mcb_dlci_port (p_mcb, dlci);
+    if ((p_port == NULL) || !(p_port->rfc.expected_rsp & RFC_RSP_PN))
+        return;
+
+    p_port->rfc.expected_rsp &= ~RFC_RSP_PN;
+
+    rfc_port_timer_stop (p_port);
+
+    PORT_ParNegCnf (p_mcb, dlci, p_frame->u.pn.mtu,
+                    p_frame->u.pn.conv_layer, p_frame->u.pn.k);
+}
+
+
+/*******************************************************************************
+**
+** Function         rfc_process_rpn
+**
+** Description      This function handles Remote DLC parameter negotiation
+**                  command/response.  Pass command to the user.
+**
+*******************************************************************************/
+void rfc_process_rpn (tRFC_MCB *p_mcb, BOOLEAN is_command,
+                      BOOLEAN is_request, MX_FRAME *p_frame)
+{
+    tPORT_STATE port_pars;
+    tPORT       *p_port;
+
+    if ((p_port = port_find_mcb_dlci_port (p_mcb, p_frame->dlci)) == NULL)
+    {
+        /* This is the first command on the port */
+        if (is_command)
+        {
+
+            memset(&port_pars, 0, sizeof(tPORT_STATE));
+            rfc_set_port_state(&port_pars, p_frame);
+
+            PORT_PortNegInd(p_mcb, p_frame->dlci, &port_pars, p_frame->u.rpn.param_mask);
+        }
+        return;
+    }
+
+    if (is_command && is_request)
+    {
+        /* This is the special situation when peer just request local pars */
+        port_pars = p_port->peer_port_pars;
+        rfc_send_rpn (p_mcb, p_frame->dlci, FALSE, &p_port->peer_port_pars, 0);
+        return;
+    }
+
+    port_pars = p_port->peer_port_pars;
+
+    rfc_set_port_state(&port_pars, p_frame);
+
+    if (is_command)
+    {
+        PORT_PortNegInd (p_mcb, p_frame->dlci, &port_pars, p_frame->u.rpn.param_mask);
+        return;
+    }
+
+    /* If we are not awaiting response just ignore it */
+    p_port = port_find_mcb_dlci_port (p_mcb, p_frame->dlci);
+    if ((p_port == NULL) || !(p_port->rfc.expected_rsp & (RFC_RSP_RPN | RFC_RSP_RPN_REPLY)))
+        return;
+
+    /* If we sent a request for port parameters to the peer he is replying with */
+    /* mask 0. */
+    rfc_port_timer_stop (p_port);
+
+    if (p_port->rfc.expected_rsp & RFC_RSP_RPN_REPLY)
+    {
+        p_port->rfc.expected_rsp &= ~RFC_RSP_RPN_REPLY;
+
+        p_port->peer_port_pars = port_pars;
+
+        if ((port_pars.fc_type == (RFCOMM_FC_RTR_ON_INPUT | RFCOMM_FC_RTR_ON_OUTPUT))
+         || (port_pars.fc_type == (RFCOMM_FC_RTC_ON_INPUT | RFCOMM_FC_RTC_ON_OUTPUT)))
+        {
+            /* This is satisfactory port parameters.  Set mask as it was Ok */
+            p_frame->u.rpn.param_mask = RFCOMM_RPN_PM_MASK;
+        }
+        else
+        {
+            /* Current peer parameters are not good, try to fix them */
+            p_port->peer_port_pars.fc_type = (RFCOMM_FC_RTR_ON_INPUT | RFCOMM_FC_RTR_ON_OUTPUT);
+
+            p_port->rfc.expected_rsp |= RFC_RSP_RPN;
+            rfc_send_rpn (p_mcb, p_frame->dlci, TRUE, &p_port->peer_port_pars,
+                          RFCOMM_RPN_PM_RTR_ON_INPUT | RFCOMM_RPN_PM_RTR_ON_OUTPUT);
+            rfc_port_timer_start (p_port, RFC_T2_TIMEOUT) ;
+            return;
+        }
+    }
+    else
+        p_port->rfc.expected_rsp &= ~RFC_RSP_RPN;
+
+    /* Check if all suggested parameters were accepted */
+    if (((p_frame->u.rpn.param_mask & (RFCOMM_RPN_PM_RTR_ON_INPUT | RFCOMM_RPN_PM_RTR_ON_OUTPUT)) ==
+        (RFCOMM_RPN_PM_RTR_ON_INPUT | RFCOMM_RPN_PM_RTR_ON_OUTPUT))
+     || ((p_frame->u.rpn.param_mask & (RFCOMM_RPN_PM_RTC_ON_INPUT | RFCOMM_RPN_PM_RTC_ON_OUTPUT)) ==
+        (RFCOMM_RPN_PM_RTC_ON_INPUT | RFCOMM_RPN_PM_RTC_ON_OUTPUT)))
+    {
+        PORT_PortNegCnf (p_mcb, p_port->dlci, &port_pars, RFCOMM_SUCCESS);
+        return;
+    }
+
+    /* If we were proposing RTR flow control try RTC flow control */
+    /* If we were proposing RTC flow control try no flow control */
+    /* otherwise drop the connection */
+    if (p_port->peer_port_pars.fc_type == (RFCOMM_FC_RTR_ON_INPUT | RFCOMM_FC_RTR_ON_OUTPUT))
+    {
+        /* Current peer parameters are not good, try to fix them */
+        p_port->peer_port_pars.fc_type = (RFCOMM_FC_RTC_ON_INPUT | RFCOMM_FC_RTC_ON_OUTPUT);
+
+        p_port->rfc.expected_rsp |= RFC_RSP_RPN;
+
+        rfc_send_rpn (p_mcb, p_frame->dlci, TRUE, &p_port->peer_port_pars,
+                      RFCOMM_RPN_PM_RTC_ON_INPUT | RFCOMM_RPN_PM_RTC_ON_OUTPUT);
+        rfc_port_timer_start (p_port, RFC_T2_TIMEOUT) ;
+        return;
+    }
+
+    /* Other side does not support flow control */
+    if (p_port->peer_port_pars.fc_type == (RFCOMM_FC_RTC_ON_INPUT | RFCOMM_FC_RTC_ON_OUTPUT))
+    {
+        p_port->peer_port_pars.fc_type = RFCOMM_FC_OFF;
+        PORT_PortNegCnf (p_mcb, p_port->dlci, &port_pars, RFCOMM_SUCCESS);
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         rfc_process_msc
+**
+** Description      This function handles Modem Status Command.
+**                  Pass command to the user.
+**
+*******************************************************************************/
+void rfc_process_msc (tRFC_MCB *p_mcb, BOOLEAN is_command, MX_FRAME *p_frame)
+{
+    tPORT_CTRL pars;
+    tPORT      *p_port;
+    UINT8      modem_signals = p_frame->u.msc.signals;
+    BOOLEAN    new_peer_fc = FALSE;
+
+    p_port = port_find_mcb_dlci_port (p_mcb, p_frame->dlci);
+    if (p_port == NULL)
+        return;
+
+    pars.modem_signal = 0;
+
+    if (modem_signals & RFCOMM_MSC_RTC)
+        pars.modem_signal |= MODEM_SIGNAL_DTRDSR;
+
+    if (modem_signals & RFCOMM_MSC_RTR)
+        pars.modem_signal |= MODEM_SIGNAL_RTSCTS;
+
+    if (modem_signals & RFCOMM_MSC_IC)
+        pars.modem_signal |= MODEM_SIGNAL_RI;
+
+    if (modem_signals & RFCOMM_MSC_DV)
+        pars.modem_signal |= MODEM_SIGNAL_DCD;
+
+    pars.fc = ((modem_signals & RFCOMM_MSC_FC) == RFCOMM_MSC_FC);
+
+    pars.break_signal     = (p_frame->u.msc.break_present) ?
+                             p_frame->u.msc.break_duration : 0;
+    pars.discard_buffers  = 0;
+    pars.break_signal_seq = RFCOMM_CTRL_BREAK_IN_SEQ;   /* this is default */
+
+    /* Check if this command is passed only to indicate flow control */
+    if (is_command)
+    {
+        rfc_send_msc (p_mcb, p_frame->dlci, FALSE, &pars);
+
+        if (p_port->rfc.p_mcb->flow != PORT_FC_CREDIT)
+        {
+            /* Spec 1.1 indicates that only FC bit is used for flow control */
+            p_port->peer_ctrl.fc = new_peer_fc = pars.fc;
+
+            if (new_peer_fc != p_port->tx.peer_fc)
+                PORT_FlowInd (p_mcb, p_frame->dlci, (BOOLEAN)!new_peer_fc);
+        }
+
+        PORT_ControlInd (p_mcb, p_frame->dlci, &pars);
+
+        return;
+    }
+
+    /* If we are not awaiting response just ignore it */
+    if (!(p_port->rfc.expected_rsp & RFC_RSP_MSC))
+        return;
+
+    p_port->rfc.expected_rsp &= ~RFC_RSP_MSC;
+
+    rfc_port_timer_stop (p_port);
+
+    PORT_ControlCnf (p_port->rfc.p_mcb, p_port->dlci, &pars);
+}
+
+
+/*******************************************************************************
+**
+** Function         rfc_process_rls
+**
+** Description      This function handles Remote Line Status command.
+**                  Pass command to the user.
+**
+*******************************************************************************/
+void rfc_process_rls (tRFC_MCB *p_mcb, BOOLEAN is_command, MX_FRAME *p_frame)
+{
+    tPORT *p_port;
+
+    if (is_command)
+    {
+        PORT_LineStatusInd (p_mcb, p_frame->dlci, p_frame->u.rls.line_status);
+        rfc_send_rls (p_mcb, p_frame->dlci, FALSE, p_frame->u.rls.line_status);
+    }
+    else
+    {
+        p_port = port_find_mcb_dlci_port (p_mcb, p_frame->dlci);
+
+        /* If we are not awaiting response just ignore it */
+        if (!p_port || !(p_port->rfc.expected_rsp & RFC_RSP_RLS))
+            return;
+
+        p_port->rfc.expected_rsp &= ~RFC_RSP_RLS;
+
+        rfc_port_timer_stop (p_port);
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         rfc_process_nsc
+**
+** Description      This function handles None Supported Command frame.
+**
+*******************************************************************************/
+void rfc_process_nsc (tRFC_MCB *p_mcb, MX_FRAME *p_frame)
+{
+    UNUSED(p_mcb);
+    UNUSED(p_frame);
+}
+
+
+/*******************************************************************************
+**
+** Function         rfc_process_test
+**
+** Description      This function handles Test frame.  If this is a command
+**                  reply to it.  Otherwise pass response to the user.
+**
+*******************************************************************************/
+void rfc_process_test_rsp(tRFC_MCB *p_mcb, BT_HDR *p_buf)
+{
+    UNUSED(p_mcb);
+    osi_free(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         rfc_process_fcon
+**
+** Description      This function handles FCON frame.  The peer entity is able
+**                  to receive new information
+**
+*******************************************************************************/
+void rfc_process_fcon (tRFC_MCB *p_mcb, BOOLEAN is_command)
+{
+    if (is_command)
+    {
+        rfc_cb.rfc.peer_rx_disabled = FALSE;
+
+        rfc_send_fcon (p_mcb, FALSE);
+
+        if (!p_mcb->l2cap_congested)
+            PORT_FlowInd (p_mcb, 0, TRUE);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         rfc_process_fcoff
+**
+** Description      This function handles FCOFF frame.  The peer entity is unable
+**                  to receive new information
+**
+*******************************************************************************/
+void rfc_process_fcoff (tRFC_MCB *p_mcb, BOOLEAN is_command)
+{
+    if (is_command)
+    {
+        rfc_cb.rfc.peer_rx_disabled = TRUE;
+
+        if (!p_mcb->l2cap_congested)
+            PORT_FlowInd (p_mcb, 0, FALSE);
+
+        rfc_send_fcoff (p_mcb, FALSE);
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         rfc_process_l2cap_congestion
+**
+** Description      This function handles L2CAP congestion messages
+**
+*******************************************************************************/
+void rfc_process_l2cap_congestion (tRFC_MCB *p_mcb, BOOLEAN is_congested)
+{
+    p_mcb->l2cap_congested = is_congested;
+
+    if (!is_congested)
+    {
+        rfc_check_send_cmd(p_mcb, NULL);
+    }
+
+    if (!rfc_cb.rfc.peer_rx_disabled)
+    {
+        if (!is_congested)
+            PORT_FlowInd (p_mcb, 0, TRUE);
+        else
+            PORT_FlowInd (p_mcb, 0, FALSE);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         rfc_set_port_pars
+**
+** Description      This function sets the tPORT_STATE structure given a p_frame.
+**
+*******************************************************************************/
+
+void rfc_set_port_state(tPORT_STATE *port_pars, MX_FRAME *p_frame)
+{
+    if (p_frame->u.rpn.param_mask & RFCOMM_RPN_PM_BIT_RATE)
+        port_pars->baud_rate   = p_frame->u.rpn.baud_rate;
+    if (p_frame->u.rpn.param_mask & RFCOMM_RPN_PM_DATA_BITS)
+        port_pars->byte_size   = p_frame->u.rpn.byte_size;
+    if (p_frame->u.rpn.param_mask & RFCOMM_RPN_PM_STOP_BITS)
+        port_pars->stop_bits   = p_frame->u.rpn.stop_bits;
+    if (p_frame->u.rpn.param_mask & RFCOMM_RPN_PM_PARITY)
+        port_pars->parity      = p_frame->u.rpn.parity;
+    if (p_frame->u.rpn.param_mask & RFCOMM_RPN_PM_PARITY_TYPE)
+        port_pars->parity_type = p_frame->u.rpn.parity_type;
+    if (p_frame->u.rpn.param_mask & (RFCOMM_RPN_PM_XONXOFF_ON_INPUT |
+                                     RFCOMM_RPN_PM_XONXOFF_ON_OUTPUT |
+                                     RFCOMM_RPN_PM_RTR_ON_INPUT |
+                                     RFCOMM_RPN_PM_RTR_ON_OUTPUT |
+                                     RFCOMM_RPN_PM_RTC_ON_INPUT |
+                                     RFCOMM_RPN_PM_RTC_ON_OUTPUT))
+        port_pars->fc_type     = p_frame->u.rpn.fc_type;
+    if (p_frame->u.rpn.param_mask & RFCOMM_RPN_PM_XON_CHAR)
+        port_pars->xon_char    = p_frame->u.rpn.xon_char;
+    if (p_frame->u.rpn.param_mask & RFCOMM_RPN_PM_XOFF_CHAR)
+        port_pars->xoff_char   = p_frame->u.rpn.xoff_char;
+}
+
diff --git a/rtkbt/code/bt/stack/rfcomm/rfc_port_if.c b/rtkbt/code/bt/stack/rfcomm/rfc_port_if.c
new file mode 100755
index 0000000..d2ef9b2
--- /dev/null
+++ b/rtkbt/code/bt/stack/rfcomm/rfc_port_if.c
@@ -0,0 +1,376 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/*****************************************************************************
+ *
+ * This file contains functions callable by an application
+ * running on top of RFCOMM
+ *
+ *****************************************************************************/
+
+#include <string.h>
+#include "bt_target.h"
+#include "bt_common.h"
+#include "rfcdefs.h"
+#include "port_api.h"
+#include "l2c_api.h"
+#include "port_int.h"
+#include "rfc_int.h"
+#include "bt_utils.h"
+
+#if RFC_DYNAMIC_MEMORY == FALSE
+tRFC_CB rfc_cb;
+#endif
+
+/*******************************************************************************
+**
+** Function         RFCOMM_StartReq
+**
+** Description      This function handles Start Request from the upper layer.
+**                  If RFCOMM multiplexer channel can not be allocated
+**                  send start not accepted confirmation.  Otherwise dispatch
+**                  start event to the state machine.
+**
+*******************************************************************************/
+void RFCOMM_StartReq (tRFC_MCB *p_mcb)
+{
+    rfc_mx_sm_execute (p_mcb, RFC_MX_EVENT_START_REQ, NULL);
+}
+
+
+/*******************************************************************************
+**
+** Function         RFCOMM_StartRsp
+**
+** Description      This function handles Start Response from the upper layer.
+**                  Save upper layer handle and result of the Start Indication
+**                  in the control block and dispatch event to the FSM.
+**
+*******************************************************************************/
+void RFCOMM_StartRsp (tRFC_MCB *p_mcb, UINT16 result)
+{
+    rfc_mx_sm_execute (p_mcb, RFC_MX_EVENT_START_RSP, &result);
+}
+
+
+/*******************************************************************************
+**
+** Function         RFCOMM_DlcEstablishReq
+**
+** Description      This function is called by the user app to establish
+**                  connection with the specific dlci on a specific bd device.
+**                  It will allocate RFCOMM connection control block if not
+**                  allocated before and dispatch open event to the state
+**                  machine.
+**
+*******************************************************************************/
+void RFCOMM_DlcEstablishReq (tRFC_MCB *p_mcb, UINT8 dlci, UINT16 mtu)
+{
+    UNUSED(mtu);
+    if (p_mcb->state != RFC_MX_STATE_CONNECTED)
+    {
+        PORT_DlcEstablishCnf (p_mcb, dlci, 0, RFCOMM_ERROR);
+        return;
+    }
+
+    tPORT *p_port = port_find_mcb_dlci_port(p_mcb, dlci);
+    if (p_port == NULL) {
+        RFCOMM_TRACE_WARNING("%s Unable to find DLCI port dlci:%d", __func__,
+                dlci);
+        return;
+    }
+
+    rfc_port_sm_execute(p_port, RFC_EVENT_OPEN, NULL);
+}
+
+
+/*******************************************************************************
+**
+** Function         RFCOMM_DlcEstablishRsp
+**
+** Description      This function is called by the port emulation entity
+**                  acks Establish Indication.
+**
+*******************************************************************************/
+void RFCOMM_DlcEstablishRsp (tRFC_MCB *p_mcb, UINT8 dlci, UINT16 mtu, UINT16 result)
+{
+    UNUSED(mtu);
+    if ((p_mcb->state != RFC_MX_STATE_CONNECTED) && (result == RFCOMM_SUCCESS))
+    {
+        PORT_DlcReleaseInd (p_mcb, dlci);
+        return;
+    }
+
+    tPORT *p_port = port_find_mcb_dlci_port (p_mcb, dlci);
+    if (p_port == NULL) {
+        RFCOMM_TRACE_WARNING("%s Unable to find DLCI port dlci:%d", __func__,
+                dlci);
+        return;
+    }
+    rfc_port_sm_execute(p_port, RFC_EVENT_ESTABLISH_RSP, &result);
+}
+
+
+/*******************************************************************************
+**
+** Function         RFCOMM_ParNegReq
+**
+** Description      This function is called by the user app to start
+**                  DLC parameter negotiation.  Port emulation can send this
+**                  request before actually establishing the DLC.  In this
+**                  case the function will allocate RFCOMM connection control
+**                  block.
+**
+*******************************************************************************/
+void RFCOMM_ParNegReq (tRFC_MCB *p_mcb, UINT8 dlci, UINT16 mtu)
+{
+    UINT8 flow;
+    UINT8 cl;
+    UINT8 k;
+
+    tPORT *p_port = port_find_mcb_dlci_port(p_mcb, dlci);
+    if (p_port == NULL) {
+        RFCOMM_TRACE_WARNING("%s Unable to find DLCI port dlci:%d", __func__,
+                dlci);
+        return;
+    }
+
+    if (p_mcb->state != RFC_MX_STATE_CONNECTED)
+    {
+        p_port->error = PORT_PAR_NEG_FAILED;
+        return;
+    }
+
+    /* Negotiate the flow control mechanism.  If flow control mechanism for */
+    /* mux has not been set yet, use our default value.  If it has been set, */
+    /* use that value. */
+    flow = (p_mcb->flow == PORT_FC_UNDEFINED) ? PORT_FC_DEFAULT : p_mcb->flow;
+
+    /* Set convergence layer and number of credits (k) */
+    if (flow == PORT_FC_CREDIT)
+    {
+        cl = RFCOMM_PN_CONV_LAYER_CBFC_I;
+        k = (p_port->credit_rx_max < RFCOMM_K_MAX) ? p_port->credit_rx_max : RFCOMM_K_MAX;
+        p_port->credit_rx = k;
+    }
+    else
+    {
+        cl = RFCOMM_PN_CONV_LAYER_TYPE_1;
+        k = 0;
+    }
+
+    /* Send Parameter Negotiation Command UIH frame */
+    p_port->rfc.expected_rsp |= RFC_RSP_PN;
+
+    rfc_send_pn (p_mcb, dlci, TRUE, mtu, cl, k);
+
+    rfc_port_timer_start (p_port, RFC_T2_TIMEOUT) ;
+}
+
+
+/*******************************************************************************
+**
+** Function         RFCOMM_ParNegRsp
+**
+** Description      This function is called by the user app to acknowledge
+**                  DLC parameter negotiation.
+**
+*******************************************************************************/
+void RFCOMM_ParNegRsp (tRFC_MCB *p_mcb, UINT8 dlci, UINT16 mtu, UINT8 cl, UINT8 k)
+{
+    if (p_mcb->state != RFC_MX_STATE_CONNECTED)
+        return;
+
+    /* Send Parameter Negotiation Response UIH frame */
+    rfc_send_pn (p_mcb, dlci, FALSE, mtu, cl, k);
+}
+
+
+/*******************************************************************************
+**
+** Function         RFCOMM_PortNegReq
+**
+** Description      This function is called by the user app to start
+**                  Remote Port parameter negotiation.  Port emulation can
+**                  send this request before actually establishing the DLC.
+**                  In this case the function will allocate RFCOMM connection
+**                  control block.
+**
+*******************************************************************************/
+void RFCOMM_PortNegReq (tRFC_MCB *p_mcb, UINT8 dlci, tPORT_STATE *p_pars)
+{
+    if (p_mcb->state != RFC_MX_STATE_CONNECTED)
+    {
+        PORT_PortNegCnf (p_mcb, dlci, NULL, RFCOMM_ERROR);
+        return;
+    }
+
+    tPORT *p_port = port_find_mcb_dlci_port(p_mcb, dlci);
+    if (p_port == NULL) {
+        RFCOMM_TRACE_WARNING("%s Unable to find DLCI port dlci:%d", __func__,
+                dlci);
+        return;
+    }
+
+    /* Send Parameter Negotiation Command UIH frame */
+    if (!p_pars)
+        p_port->rfc.expected_rsp |= RFC_RSP_RPN_REPLY;
+    else
+        p_port->rfc.expected_rsp |= RFC_RSP_RPN;
+
+    rfc_send_rpn (p_mcb, dlci, TRUE, p_pars, RFCOMM_RPN_PM_MASK);
+    rfc_port_timer_start (p_port, RFC_T2_TIMEOUT) ;
+
+}
+
+
+/*******************************************************************************
+**
+** Function         RFCOMM_PortNegRsp
+**
+** Description      This function is called by the user app to acknowledge
+**                  Port parameters negotiation.
+**
+*******************************************************************************/
+void RFCOMM_PortNegRsp (tRFC_MCB *p_mcb, UINT8 dlci, tPORT_STATE *p_pars,
+                        UINT16 param_mask)
+{
+    if (p_mcb->state != RFC_MX_STATE_CONNECTED)
+        return;
+
+   rfc_send_rpn (p_mcb, dlci, FALSE, p_pars, param_mask);
+}
+
+
+/*******************************************************************************
+**
+** Function         RFCOMM_ControlReq
+**
+** Description      This function is called by the port entity to send control
+**                  parameters to remote port emulation entity.
+**
+*******************************************************************************/
+void RFCOMM_ControlReq (tRFC_MCB *p_mcb, UINT8 dlci, tPORT_CTRL *p_pars)
+{
+    tPORT *p_port = port_find_mcb_dlci_port(p_mcb, dlci);
+    if (p_port == NULL) {
+        RFCOMM_TRACE_WARNING("%s Unable to find DLCI port dlci:%d", __func__,
+                dlci);
+        return;
+    }
+
+    if ((p_port->state != PORT_STATE_OPENED)
+     || (p_port->rfc.state  != RFC_STATE_OPENED))
+        return;
+
+    p_port->port_ctrl |= PORT_CTRL_REQ_SENT;
+
+    p_port->rfc.expected_rsp |= RFC_RSP_MSC;
+
+    rfc_send_msc (p_mcb, dlci, TRUE, p_pars);
+    rfc_port_timer_start (p_port, RFC_T2_TIMEOUT) ;
+
+}
+
+
+/*******************************************************************************
+**
+** Function         RFCOMM_FlowReq
+**
+** Description      This function is called by the port entity when flow
+**                  control state has changed.  Enable flag passed shows if
+**                  port can accept more data.
+**
+*******************************************************************************/
+void RFCOMM_FlowReq (tRFC_MCB *p_mcb, UINT8 dlci, UINT8 enable)
+{
+    tPORT *p_port = port_find_mcb_dlci_port(p_mcb, dlci);
+    if (p_port == NULL) {
+        RFCOMM_TRACE_WARNING("%s Unable to find DLCI port dlci:%d", __func__,
+                dlci);
+        return;
+    }
+
+    if ((p_port->state != PORT_STATE_OPENED)
+     || (p_port->rfc.state  != RFC_STATE_OPENED))
+        return;
+
+    p_port->local_ctrl.fc = !enable;
+
+    p_port->rfc.expected_rsp |= RFC_RSP_MSC;
+
+    rfc_send_msc (p_mcb, dlci, TRUE, &p_port->local_ctrl);
+    rfc_port_timer_start (p_port, RFC_T2_TIMEOUT) ;
+
+}
+
+
+/*******************************************************************************
+**
+** Function         RFCOMM_LineStatusReq
+**
+** Description      This function is called by the port entity when line
+**                  status should be delivered to the peer.
+**
+*******************************************************************************/
+void RFCOMM_LineStatusReq (tRFC_MCB *p_mcb, UINT8 dlci, UINT8 status)
+{
+    tPORT *p_port = port_find_mcb_dlci_port(p_mcb, dlci);
+    if (p_port == NULL) {
+        RFCOMM_TRACE_WARNING("%s Unable to find DLCI port dlci:%d", __func__,
+                dlci);
+        return;
+    }
+
+    if ((p_port->state != PORT_STATE_OPENED)
+     || (p_port->rfc.state  != RFC_STATE_OPENED))
+        return;
+
+    p_port->rfc.expected_rsp |= RFC_RSP_RLS;
+
+    rfc_send_rls (p_mcb, dlci, TRUE, status);
+    rfc_port_timer_start (p_port, RFC_T2_TIMEOUT);
+}
+
+
+/*******************************************************************************
+**
+** Function         RFCOMM_DlcReleaseReq
+**
+** Description      This function is called by the PORT unit to close DLC
+**
+*******************************************************************************/
+void RFCOMM_DlcReleaseReq (tRFC_MCB *p_mcb, UINT8 dlci)
+{
+    rfc_port_sm_execute(port_find_mcb_dlci_port (p_mcb, dlci), RFC_EVENT_CLOSE, 0);
+}
+
+
+/*******************************************************************************
+**
+** Function         RFCOMM_DataReq
+**
+** Description      This function is called by the user app to send data buffer
+**
+*******************************************************************************/
+void RFCOMM_DataReq (tRFC_MCB *p_mcb, UINT8 dlci, BT_HDR *p_buf)
+{
+    rfc_port_sm_execute(port_find_mcb_dlci_port (p_mcb, dlci), RFC_EVENT_DATA, p_buf);
+}
+
+
diff --git a/rtkbt/code/bt/stack/rfcomm/rfc_ts_frames.c b/rtkbt/code/bt/stack/rfcomm/rfc_ts_frames.c
new file mode 100755
index 0000000..739469f
--- /dev/null
+++ b/rtkbt/code/bt/stack/rfcomm/rfc_ts_frames.c
@@ -0,0 +1,876 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains functions to send TS 07.10 frames
+ *
+ ******************************************************************************/
+
+#include <stddef.h>
+#include "bt_target.h"
+#include "bt_common.h"
+#include "rfcdefs.h"
+#include "port_api.h"
+#include "l2c_api.h"
+#include "port_int.h"
+#include "rfc_int.h"
+
+/*******************************************************************************
+**
+** Function         rfc_send_sabme
+**
+** Description      This function sends SABME frame.
+**
+*******************************************************************************/
+void rfc_send_sabme (tRFC_MCB *p_mcb, UINT8 dlci)
+{
+    UINT8   *p_data;
+    UINT8   cr = RFCOMM_CR(p_mcb->is_initiator, TRUE);
+    BT_HDR  *p_buf = (BT_HDR *)osi_malloc(RFCOMM_CMD_BUF_SIZE);
+
+    p_buf->offset = L2CAP_MIN_OFFSET;
+    p_data = (UINT8 *)(p_buf + 1) + L2CAP_MIN_OFFSET;
+
+    /* SABME frame, command, PF = 1, dlci */
+    *p_data++ = RFCOMM_EA | cr | (dlci << RFCOMM_SHIFT_DLCI);
+    *p_data++ = RFCOMM_SABME | RFCOMM_PF;
+    *p_data++ = RFCOMM_EA | 0;
+
+    *p_data   = RFCOMM_SABME_FCS ((UINT8 *)(p_buf + 1) + L2CAP_MIN_OFFSET, cr, dlci);
+
+    p_buf->len = 4;
+
+    rfc_check_send_cmd(p_mcb, p_buf);
+}
+
+
+/*******************************************************************************
+**
+** Function         rfc_send_ua
+**
+** Description      This function sends UA frame.
+**
+*******************************************************************************/
+void rfc_send_ua (tRFC_MCB *p_mcb, UINT8 dlci)
+{
+    UINT8   *p_data;
+    UINT8   cr = RFCOMM_CR(p_mcb->is_initiator, FALSE);
+    BT_HDR  *p_buf = (BT_HDR *)osi_malloc(RFCOMM_CMD_BUF_SIZE);
+
+    p_buf->offset = L2CAP_MIN_OFFSET;
+    p_data = (UINT8 *)(p_buf + 1) + L2CAP_MIN_OFFSET;
+
+    /* ua frame, response, PF = 1, dlci */
+    *p_data++ = RFCOMM_EA | cr | (dlci << RFCOMM_SHIFT_DLCI);
+    *p_data++ = RFCOMM_UA | RFCOMM_PF;
+    *p_data++ = RFCOMM_EA | 0;
+
+    *p_data   = RFCOMM_UA_FCS ((UINT8 *)(p_buf + 1) + L2CAP_MIN_OFFSET, cr, dlci);
+
+    p_buf->len = 4;
+
+    rfc_check_send_cmd(p_mcb, p_buf);
+}
+
+
+/*******************************************************************************
+**
+** Function         rfc_send_dm
+**
+** Description      This function sends DM frame.
+**
+*******************************************************************************/
+void rfc_send_dm (tRFC_MCB *p_mcb, UINT8 dlci, BOOLEAN pf)
+{
+    UINT8   *p_data;
+    UINT8   cr = RFCOMM_CR(p_mcb->is_initiator, FALSE);
+    BT_HDR  *p_buf = (BT_HDR *)osi_malloc(RFCOMM_CMD_BUF_SIZE);
+
+    p_buf->offset = L2CAP_MIN_OFFSET;
+    p_data = (UINT8 *)(p_buf + 1) + L2CAP_MIN_OFFSET;
+
+    /* DM frame, response, PF = 1, dlci */
+    *p_data++ = RFCOMM_EA | cr | (dlci << RFCOMM_SHIFT_DLCI);
+    *p_data++ = RFCOMM_DM | ((pf) ? RFCOMM_PF : 0);
+    *p_data++ = RFCOMM_EA | 0;
+
+    *p_data   = RFCOMM_DM_FCS ((UINT8 *)(p_buf + 1) + L2CAP_MIN_OFFSET, cr, dlci);
+
+    p_buf->len = 4;
+
+    rfc_check_send_cmd(p_mcb, p_buf);
+}
+
+
+/*******************************************************************************
+**
+** Function         rfc_send_disc
+**
+** Description      This function sends DISC frame.
+**
+*******************************************************************************/
+void rfc_send_disc (tRFC_MCB *p_mcb, UINT8 dlci)
+{
+    UINT8   *p_data;
+    UINT8   cr = RFCOMM_CR(p_mcb->is_initiator, TRUE);
+    BT_HDR  *p_buf = (BT_HDR *)osi_malloc(RFCOMM_CMD_BUF_SIZE);
+
+    p_buf->offset = L2CAP_MIN_OFFSET;
+    p_data = (UINT8 *)(p_buf + 1) + L2CAP_MIN_OFFSET;
+
+    /* DISC frame, command, PF = 1, dlci */
+    *p_data++ = RFCOMM_EA | cr | (dlci << RFCOMM_SHIFT_DLCI);
+    *p_data++ = RFCOMM_DISC | RFCOMM_PF;
+    *p_data++ = RFCOMM_EA | 0;
+
+    *p_data   = RFCOMM_DISC_FCS ((UINT8 *)(p_buf + 1) + L2CAP_MIN_OFFSET, cr, dlci);
+
+    p_buf->len = 4;
+
+    rfc_check_send_cmd(p_mcb, p_buf);
+}
+
+
+/*******************************************************************************
+**
+** Function         rfc_send_buf_uih
+**
+** Description      This function sends UIH frame.
+**
+*******************************************************************************/
+void rfc_send_buf_uih (tRFC_MCB *p_mcb, UINT8 dlci, BT_HDR *p_buf)
+{
+    UINT8   *p_data;
+    UINT8   cr = RFCOMM_CR(p_mcb->is_initiator, TRUE);
+    UINT8   credits;
+
+    p_buf->offset -= RFCOMM_CTRL_FRAME_LEN;
+    if (p_buf->len > 127)
+        p_buf->offset--;
+
+    if (dlci)
+        credits = (UINT8)p_buf->layer_specific;
+    else
+        credits = 0;
+
+    if (credits)
+        p_buf->offset--;
+
+    p_data = (UINT8 *)(p_buf + 1) + p_buf->offset;
+
+    /* UIH frame, command, PF = 0, dlci */
+    *p_data++ = RFCOMM_EA | cr | (dlci << RFCOMM_SHIFT_DLCI);
+    *p_data++ = RFCOMM_UIH | ((credits) ? RFCOMM_PF : 0);
+    if (p_buf->len <= 127)
+    {
+        *p_data++   = RFCOMM_EA | (p_buf->len << 1);
+        p_buf->len += 3;
+    }
+    else
+    {
+        *p_data++   = (p_buf->len & 0x7f) << 1;
+        *p_data++   = p_buf->len >> RFCOMM_SHIFT_LENGTH2;
+        p_buf->len += 4;
+    }
+
+    if (credits)
+    {
+        *p_data++ = credits;
+        p_buf->len++;
+    }
+
+    p_data  = (UINT8 *)(p_buf + 1) + p_buf->offset + p_buf->len++;
+
+    *p_data = RFCOMM_UIH_FCS ((UINT8 *)(p_buf + 1) + p_buf->offset, dlci);
+
+    if (dlci == RFCOMM_MX_DLCI)
+    {
+        rfc_check_send_cmd(p_mcb, p_buf);
+    }
+    else
+    {
+        L2CA_DataWrite (p_mcb->lcid, p_buf);
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         rfc_send_pn
+**
+** Description      This function sends DLC Parameters Negotiation Frame.
+**
+*******************************************************************************/
+void rfc_send_pn (tRFC_MCB *p_mcb, UINT8 dlci, BOOLEAN is_command, UINT16 mtu, UINT8 cl, UINT8 k)
+{
+    UINT8    *p_data;
+    BT_HDR   *p_buf = (BT_HDR *)osi_malloc(RFCOMM_CMD_BUF_SIZE);
+
+    p_buf->offset = L2CAP_MIN_OFFSET + RFCOMM_CTRL_FRAME_LEN;
+    p_data = (UINT8 *)(p_buf + 1) + p_buf->offset;
+
+    *p_data++ = RFCOMM_EA | RFCOMM_I_CR(is_command) | RFCOMM_MX_PN;
+    *p_data++ = RFCOMM_EA | (RFCOMM_MX_PN_LEN << 1);
+
+    *p_data++ = dlci;
+    *p_data++ = RFCOMM_PN_FRAM_TYPE_UIH | cl;
+
+    /* It appeared that we need to reply with the same priority bits as we received.
+    ** We will use the fact that we reply in the same context so rx_frame can still be used.
+    */
+    if (is_command)
+        *p_data++ = RFCOMM_PN_PRIORITY_0;
+    else
+        *p_data++ = rfc_cb.rfc.rx_frame.u.pn.priority;
+
+    *p_data++ = RFCOMM_T1_DSEC;
+    *p_data++ = mtu & 0xFF;
+    *p_data++ = mtu >> 8;
+    *p_data++ = RFCOMM_N2;
+    *p_data   = k;
+
+    /* Total length is sizeof PN data + mx header 2 */
+    p_buf->len = RFCOMM_MX_PN_LEN + 2;
+
+    rfc_send_buf_uih (p_mcb, RFCOMM_MX_DLCI, p_buf);
+}
+
+
+/*******************************************************************************
+**
+** Function         rfc_send_fcon
+**
+** Description      This function sends Flow Control On Command.
+**
+*******************************************************************************/
+void rfc_send_fcon (tRFC_MCB *p_mcb, BOOLEAN is_command)
+{
+    UINT8   *p_data;
+    BT_HDR  *p_buf = (BT_HDR *)osi_malloc(RFCOMM_CMD_BUF_SIZE);
+
+    p_buf->offset = L2CAP_MIN_OFFSET + RFCOMM_CTRL_FRAME_LEN;
+    p_data = (UINT8 *)(p_buf + 1) + p_buf->offset;
+
+    *p_data++ = RFCOMM_EA | RFCOMM_I_CR(is_command) | RFCOMM_MX_FCON;
+    *p_data++ = RFCOMM_EA | (RFCOMM_MX_FCON_LEN << 1);
+
+    /* Total length is sizeof FCON data + mx header 2 */
+    p_buf->len = RFCOMM_MX_FCON_LEN + 2;
+
+    rfc_send_buf_uih (p_mcb, RFCOMM_MX_DLCI, p_buf);
+}
+
+
+/*******************************************************************************
+**
+** Function         rfc_send_fcoff
+**
+** Description      This function sends Flow Control Off Command.
+**
+*******************************************************************************/
+void rfc_send_fcoff (tRFC_MCB *p_mcb, BOOLEAN is_command)
+{
+    UINT8   *p_data;
+    BT_HDR  *p_buf = (BT_HDR *)osi_malloc(RFCOMM_CMD_BUF_SIZE);
+
+    p_buf->offset = L2CAP_MIN_OFFSET + RFCOMM_CTRL_FRAME_LEN;
+    p_data = (UINT8 *)(p_buf + 1) + p_buf->offset;
+
+    *p_data++ = RFCOMM_EA | RFCOMM_I_CR(is_command) | RFCOMM_MX_FCOFF;
+    *p_data++ = RFCOMM_EA | (RFCOMM_MX_FCOFF_LEN << 1);
+
+    /* Total length is sizeof FCOFF data + mx header 2 */
+    p_buf->len = RFCOMM_MX_FCOFF_LEN + 2;
+
+    rfc_send_buf_uih (p_mcb, RFCOMM_MX_DLCI, p_buf);
+}
+
+
+/*******************************************************************************
+**
+** Function         rfc_send_msc
+**
+** Description      This function sends Modem Status Command Frame.
+**
+*******************************************************************************/
+void rfc_send_msc (tRFC_MCB *p_mcb, UINT8 dlci, BOOLEAN is_command,
+                   tPORT_CTRL *p_pars)
+{
+    UINT8   *p_data;
+    UINT8   signals;
+    UINT8   break_duration;
+    UINT8   len;
+    BT_HDR  *p_buf = (BT_HDR *)osi_malloc(RFCOMM_CMD_BUF_SIZE);
+
+    signals        = p_pars->modem_signal;
+    break_duration = p_pars->break_signal;
+
+    p_buf->offset = L2CAP_MIN_OFFSET + RFCOMM_CTRL_FRAME_LEN;
+    p_data = (UINT8 *)(p_buf + 1) + p_buf->offset;
+
+    if (break_duration)
+        len = RFCOMM_MX_MSC_LEN_WITH_BREAK;
+    else
+        len = RFCOMM_MX_MSC_LEN_NO_BREAK;
+
+    *p_data++ = RFCOMM_EA | RFCOMM_I_CR(is_command) | RFCOMM_MX_MSC;
+    *p_data++ = RFCOMM_EA | (len << 1);
+
+    *p_data++ = RFCOMM_EA | RFCOMM_CR_MASK | (dlci << RFCOMM_SHIFT_DLCI);
+    *p_data++ = RFCOMM_EA |
+                ((p_pars->fc)                    ? RFCOMM_MSC_FC : 0)  |
+                ((signals & MODEM_SIGNAL_DTRDSR) ? RFCOMM_MSC_RTC : 0) |
+                ((signals & MODEM_SIGNAL_RTSCTS) ? RFCOMM_MSC_RTR : 0) |
+                ((signals & MODEM_SIGNAL_RI)     ? RFCOMM_MSC_IC : 0)  |
+                ((signals & MODEM_SIGNAL_DCD)    ? RFCOMM_MSC_DV : 0);
+
+    if (break_duration)
+    {
+        *p_data++ = RFCOMM_EA | RFCOMM_MSC_BREAK_PRESENT_MASK |
+                    (break_duration << RFCOMM_MSC_SHIFT_BREAK);
+    }
+
+    /* Total length is sizeof MSC data + mx header 2 */
+    p_buf->len = len + 2;
+
+    rfc_send_buf_uih (p_mcb, RFCOMM_MX_DLCI, p_buf);
+}
+
+
+/*******************************************************************************
+**
+** Function         rfc_send_rls
+**
+** Description      This function sends Remote Line Status Command Frame.
+**
+*******************************************************************************/
+void rfc_send_rls (tRFC_MCB *p_mcb, UINT8 dlci, BOOLEAN is_command, UINT8 status)
+{
+    UINT8   *p_data;
+    BT_HDR  *p_buf = (BT_HDR *)osi_malloc(RFCOMM_CMD_BUF_SIZE);
+
+    p_buf->offset = L2CAP_MIN_OFFSET + RFCOMM_CTRL_FRAME_LEN;
+    p_data = (UINT8 *)(p_buf + 1) + p_buf->offset;
+
+    *p_data++ = RFCOMM_EA | RFCOMM_I_CR(is_command) | RFCOMM_MX_RLS;
+    *p_data++ = RFCOMM_EA | (RFCOMM_MX_RLS_LEN << 1);
+
+    *p_data++ = RFCOMM_EA | RFCOMM_CR_MASK | (dlci << RFCOMM_SHIFT_DLCI);
+    *p_data++ = RFCOMM_RLS_ERROR | status;
+
+    /* Total length is sizeof RLS data + mx header 2 */
+    p_buf->len = RFCOMM_MX_RLS_LEN + 2;
+
+    rfc_send_buf_uih (p_mcb, RFCOMM_MX_DLCI, p_buf);
+}
+
+
+/*******************************************************************************
+**
+** Function         rfc_send_nsc
+**
+** Description      This function sends Non Supported Command Response.
+**
+*******************************************************************************/
+void rfc_send_nsc (tRFC_MCB *p_mcb)
+{
+    UINT8   *p_data;
+    BT_HDR  *p_buf = (BT_HDR *)osi_malloc(RFCOMM_CMD_BUF_SIZE);
+
+    p_buf->offset = L2CAP_MIN_OFFSET + RFCOMM_CTRL_FRAME_LEN;
+    p_data = (UINT8 *)(p_buf + 1) + p_buf->offset;
+
+    *p_data++ = RFCOMM_EA | RFCOMM_I_CR(FALSE) | RFCOMM_MX_NSC;
+    *p_data++ = RFCOMM_EA | (RFCOMM_MX_NSC_LEN << 1);
+
+    *p_data++ =  rfc_cb.rfc.rx_frame.ea |
+                (rfc_cb.rfc.rx_frame.cr << RFCOMM_SHIFT_CR) |
+                 rfc_cb.rfc.rx_frame.type;
+
+    /* Total length is sizeof NSC data + mx header 2 */
+    p_buf->len = RFCOMM_MX_NSC_LEN + 2;
+
+    rfc_send_buf_uih (p_mcb, RFCOMM_MX_DLCI, p_buf);
+}
+
+
+/*******************************************************************************
+**
+** Function         rfc_send_rpn
+**
+** Description      This function sends Remote Port Negotiation Command
+**
+*******************************************************************************/
+void rfc_send_rpn (tRFC_MCB *p_mcb, UINT8 dlci, BOOLEAN is_command,
+                   tPORT_STATE *p_pars, UINT16 mask)
+{
+    UINT8    *p_data;
+    BT_HDR   *p_buf = (BT_HDR *)osi_malloc(RFCOMM_CMD_BUF_SIZE);
+
+    p_buf->offset = L2CAP_MIN_OFFSET + RFCOMM_CTRL_FRAME_LEN;
+    p_data = (UINT8 *)(p_buf + 1) + p_buf->offset;
+
+    *p_data++ = RFCOMM_EA | RFCOMM_I_CR(is_command) | RFCOMM_MX_RPN;
+
+    if (!p_pars)
+    {
+        *p_data++ = RFCOMM_EA | (RFCOMM_MX_RPN_REQ_LEN << 1);
+
+        *p_data++ = RFCOMM_EA | RFCOMM_CR_MASK | (dlci << RFCOMM_SHIFT_DLCI);
+
+        p_buf->len = RFCOMM_MX_RPN_REQ_LEN + 2;
+    }
+    else
+    {
+        *p_data++ = RFCOMM_EA | (RFCOMM_MX_RPN_LEN << 1);
+
+        *p_data++ = RFCOMM_EA | RFCOMM_CR_MASK | (dlci << RFCOMM_SHIFT_DLCI);
+        *p_data++ = p_pars->baud_rate;
+        *p_data++ =  (p_pars->byte_size << RFCOMM_RPN_BITS_SHIFT)
+                   | (p_pars->stop_bits << RFCOMM_RPN_STOP_BITS_SHIFT)
+                   | (p_pars->parity << RFCOMM_RPN_PARITY_SHIFT)
+                   | (p_pars->parity_type << RFCOMM_RPN_PARITY_TYPE_SHIFT);
+        *p_data++ = p_pars->fc_type;
+        *p_data++ = p_pars->xon_char;
+        *p_data++ = p_pars->xoff_char;
+        *p_data++ = (mask & 0xFF);
+        *p_data++ = (mask >> 8);
+
+        /* Total length is sizeof RPN data + mx header 2 */
+        p_buf->len = RFCOMM_MX_RPN_LEN + 2;
+    }
+
+    rfc_send_buf_uih (p_mcb, RFCOMM_MX_DLCI, p_buf);
+}
+
+
+/*******************************************************************************
+**
+** Function         rfc_send_test
+**
+** Description      This function sends Test frame.
+**
+*******************************************************************************/
+void rfc_send_test (tRFC_MCB *p_mcb, BOOLEAN is_command, BT_HDR *p_buf)
+{
+    /* Shift buffer to give space for header */
+    if (p_buf->offset < (L2CAP_MIN_OFFSET + RFCOMM_MIN_OFFSET + 2))
+    {
+        UINT8 *p_src  = (UINT8 *) (p_buf + 1) + p_buf->offset + p_buf->len - 1;
+        BT_HDR *p_new_buf = (BT_HDR *) osi_malloc(p_buf->len + (L2CAP_MIN_OFFSET +
+                            RFCOMM_MIN_OFFSET + 2 + sizeof(BT_HDR) + 1));
+
+        p_new_buf->offset = L2CAP_MIN_OFFSET + RFCOMM_MIN_OFFSET + 2;
+        p_new_buf->len = p_buf->len;
+
+        UINT8 *p_dest = (UINT8 *) (p_new_buf + 1) + p_new_buf->offset + p_new_buf->len - 1;
+
+        for (UINT16 xx = 0; xx < p_buf->len; xx++)
+            *p_dest-- = *p_src--;
+
+        osi_free(p_buf);
+        p_buf = p_new_buf;
+    }
+
+    /* Adjust offset by number of bytes we are going to fill */
+    p_buf->offset -= 2;
+    UINT8 *p_data = (UINT8 *)(p_buf + 1) + p_buf->offset;
+
+    *p_data++ = RFCOMM_EA | RFCOMM_I_CR(is_command) | RFCOMM_MX_TEST;
+    *p_data++ = RFCOMM_EA | (p_buf->len << 1);
+
+    p_buf->len += 2;
+
+    rfc_send_buf_uih (p_mcb, RFCOMM_MX_DLCI, p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         rfc_send_credit
+**
+** Description      This function sends a flow control credit in UIH frame.
+**
+*******************************************************************************/
+void rfc_send_credit(tRFC_MCB *p_mcb, UINT8 dlci, UINT8 credit)
+{
+    UINT8    *p_data;
+    UINT8    cr = RFCOMM_CR(p_mcb->is_initiator, TRUE);
+    BT_HDR   *p_buf = (BT_HDR *)osi_malloc(RFCOMM_CMD_BUF_SIZE);
+
+    p_buf->offset = L2CAP_MIN_OFFSET;
+    p_data = (UINT8 *)(p_buf + 1) + p_buf->offset;
+
+    *p_data++ = RFCOMM_EA | cr | (dlci << RFCOMM_SHIFT_DLCI);
+    *p_data++ = RFCOMM_UIH | RFCOMM_PF;
+    *p_data++ = RFCOMM_EA | 0;
+    *p_data++ = credit;
+    *p_data   = RFCOMM_UIH_FCS ((UINT8 *)(p_buf + 1) + p_buf->offset, dlci);
+
+    p_buf->len = 5;
+
+    rfc_check_send_cmd(p_mcb, p_buf);
+}
+
+
+/*******************************************************************************
+**
+** Function         rfc_parse_data
+**
+** Description      This function processes data packet received from L2CAP
+**
+*******************************************************************************/
+UINT8 rfc_parse_data (tRFC_MCB *p_mcb, MX_FRAME *p_frame, BT_HDR *p_buf)
+{
+    UINT8     ead, eal, fcs;
+    UINT8     *p_data = (UINT8 *)(p_buf + 1) + p_buf->offset;
+    UINT8     *p_start = p_data;
+    UINT16    len;
+
+    if (p_buf->len < RFCOMM_CTRL_FRAME_LEN)
+    {
+        RFCOMM_TRACE_ERROR ("Bad Length1: %d", p_buf->len);
+        return (RFC_EVENT_BAD_FRAME);
+    }
+
+    RFCOMM_PARSE_CTRL_FIELD (ead, p_frame->cr, p_frame->dlci, p_data);
+    if( !ead )
+    {
+        RFCOMM_TRACE_ERROR ("Bad Address(EA must be 1)");
+        return (RFC_EVENT_BAD_FRAME);
+    }
+    RFCOMM_PARSE_TYPE_FIELD (p_frame->type, p_frame->pf, p_data);
+    RFCOMM_PARSE_LEN_FIELD (eal, len, p_data);
+
+    p_buf->len      -= (3 + !ead + !eal + 1);  /* Additional 1 for FCS */
+    p_buf->offset   += (3 + !ead + !eal);
+
+    /* handle credit if credit based flow control */
+    if ((p_mcb->flow == PORT_FC_CREDIT) && (p_frame->type == RFCOMM_UIH) &&
+        (p_frame->dlci != RFCOMM_MX_DLCI) && (p_frame->pf == 1))
+    {
+        p_frame->credit = *p_data++;
+        p_buf->len--;
+        p_buf->offset++;
+    }
+    else
+        p_frame->credit = 0;
+
+    if (p_buf->len != len)
+    {
+        RFCOMM_TRACE_ERROR ("Bad Length2 %d %d", p_buf->len, len);
+        return (RFC_EVENT_BAD_FRAME);
+    }
+
+    fcs = *(p_data + len);
+
+    /* All control frames that we are sending are sent with P=1, expect */
+    /* reply with F=1 */
+    /* According to TS 07.10 spec ivalid frames are discarded without */
+    /* notification to the sender */
+    switch (p_frame->type)
+    {
+    case RFCOMM_SABME:
+        if (RFCOMM_FRAME_IS_RSP(p_mcb->is_initiator, p_frame->cr)
+         || !p_frame->pf || len || !RFCOMM_VALID_DLCI (p_frame->dlci)
+         || !rfc_check_fcs (RFCOMM_CTRL_FRAME_LEN, p_start, fcs))
+        {
+            RFCOMM_TRACE_ERROR ("Bad SABME");
+            return (RFC_EVENT_BAD_FRAME);
+        }
+        else
+            return (RFC_EVENT_SABME);
+
+    case RFCOMM_UA:
+        if (RFCOMM_FRAME_IS_CMD(p_mcb->is_initiator, p_frame->cr)
+          || !p_frame->pf || len || !RFCOMM_VALID_DLCI (p_frame->dlci)
+          || !rfc_check_fcs (RFCOMM_CTRL_FRAME_LEN, p_start, fcs))
+        {
+            RFCOMM_TRACE_ERROR ("Bad UA");
+            return (RFC_EVENT_BAD_FRAME);
+        }
+        else
+            return (RFC_EVENT_UA);
+
+    case RFCOMM_DM:
+        if (RFCOMM_FRAME_IS_CMD(p_mcb->is_initiator, p_frame->cr)
+         || len || !RFCOMM_VALID_DLCI(p_frame->dlci)
+         || !rfc_check_fcs (RFCOMM_CTRL_FRAME_LEN, p_start, fcs))
+        {
+            RFCOMM_TRACE_ERROR ("Bad DM");
+            return (RFC_EVENT_BAD_FRAME);
+        }
+        else
+            return (RFC_EVENT_DM);
+
+    case RFCOMM_DISC:
+        if (RFCOMM_FRAME_IS_RSP(p_mcb->is_initiator, p_frame->cr)
+          || !p_frame->pf || len || !RFCOMM_VALID_DLCI(p_frame->dlci)
+          || !rfc_check_fcs (RFCOMM_CTRL_FRAME_LEN, p_start, fcs))
+        {
+            RFCOMM_TRACE_ERROR ("Bad DISC");
+            return (RFC_EVENT_BAD_FRAME);
+        }
+        else
+            return (RFC_EVENT_DISC);
+
+    case RFCOMM_UIH:
+        if (!RFCOMM_VALID_DLCI(p_frame->dlci))
+        {
+            RFCOMM_TRACE_ERROR ("Bad UIH - invalid DLCI");
+            return (RFC_EVENT_BAD_FRAME);
+        }
+        else if (!rfc_check_fcs (2, p_start, fcs))
+        {
+            RFCOMM_TRACE_ERROR ("Bad UIH - FCS");
+            return (RFC_EVENT_BAD_FRAME);
+        }
+        else if (RFCOMM_FRAME_IS_RSP(p_mcb->is_initiator, p_frame->cr))
+        {
+            /* we assume that this is ok to allow bad implementations to work */
+            RFCOMM_TRACE_ERROR ("Bad UIH - response");
+            return (RFC_EVENT_UIH);
+        }
+        else
+            return (RFC_EVENT_UIH);
+    }
+
+    return (RFC_EVENT_BAD_FRAME);
+}
+
+
+/*******************************************************************************
+**
+** Function         rfc_process_mx_message
+**
+** Description      This function processes UIH frames received on the
+**                  multiplexer control channel.
+**
+*******************************************************************************/
+void rfc_process_mx_message (tRFC_MCB *p_mcb, BT_HDR *p_buf)
+{
+    UINT8       *p_data = (UINT8 *)(p_buf + 1) + p_buf->offset;
+    MX_FRAME    *p_rx_frame = &rfc_cb.rfc.rx_frame;
+    UINT16       length  = p_buf->len;
+    UINT8        ea, cr, mx_len;
+    BOOLEAN      is_command;
+
+    p_rx_frame->ea   = *p_data & RFCOMM_EA;
+    p_rx_frame->cr   = (*p_data & RFCOMM_CR_MASK) >> RFCOMM_SHIFT_CR;
+    p_rx_frame->type = *p_data++ & ~(RFCOMM_CR_MASK | RFCOMM_EA_MASK);
+
+    if (!p_rx_frame->ea || !length)
+    {
+        RFCOMM_TRACE_ERROR ("Illegal MX Frame ea:%d len:%d", p_rx_frame->ea, length);
+        osi_free(p_buf);
+        return;
+    }
+
+    length--;
+
+    is_command = p_rx_frame->cr;
+
+    ea = *p_data & RFCOMM_EA;
+
+    mx_len = *p_data++ >> RFCOMM_SHIFT_LENGTH1;
+    length--;
+
+    if (!ea)
+    {
+        mx_len += *p_data++ << RFCOMM_SHIFT_LENGTH2;
+        length --;
+    }
+
+    if (mx_len != length)
+    {
+        RFCOMM_TRACE_ERROR ("Bad MX frame");
+        osi_free(p_buf);
+        return;
+    }
+
+    switch (p_rx_frame->type)
+    {
+    case RFCOMM_MX_PN:
+        if (length != RFCOMM_MX_PN_LEN)
+            break;
+
+        p_rx_frame->dlci            = *p_data++ & RFCOMM_PN_DLCI_MASK;
+        p_rx_frame->u.pn.frame_type = *p_data & RFCOMM_PN_FRAME_TYPE_MASK;
+        p_rx_frame->u.pn.conv_layer = *p_data++ & RFCOMM_PN_CONV_LAYER_MASK;
+        p_rx_frame->u.pn.priority   = *p_data++ & RFCOMM_PN_PRIORITY_MASK;
+        p_rx_frame->u.pn.t1         = *p_data++;
+        p_rx_frame->u.pn.mtu        = *p_data + (*(p_data + 1) << 8);
+        p_data += 2;
+        p_rx_frame->u.pn.n2         = *p_data++;
+        p_rx_frame->u.pn.k          = *p_data++ & RFCOMM_PN_K_MASK;
+
+        if (!p_rx_frame->dlci
+         || !RFCOMM_VALID_DLCI (p_rx_frame->dlci)
+         || (p_rx_frame->u.pn.mtu < RFCOMM_MIN_MTU)
+         || (p_rx_frame->u.pn.mtu > RFCOMM_MAX_MTU))
+        {
+            RFCOMM_TRACE_ERROR ("Bad PN frame");
+            break;
+        }
+
+        osi_free(p_buf);
+
+        rfc_process_pn (p_mcb, is_command, p_rx_frame);
+        return;
+
+    case RFCOMM_MX_TEST:
+        if (!length)
+            break;
+
+        p_rx_frame->u.test.p_data   = p_data;
+        p_rx_frame->u.test.data_len = length;
+
+        p_buf->offset += 2;
+        p_buf->len    -= 2;
+
+        if (is_command)
+            rfc_send_test (p_mcb, FALSE, p_buf);
+        else
+            rfc_process_test_rsp (p_mcb, p_buf);
+        return;
+
+    case RFCOMM_MX_FCON:
+        if (length != RFCOMM_MX_FCON_LEN)
+            break;
+
+        osi_free(p_buf);
+
+        rfc_process_fcon (p_mcb, is_command);
+        return;
+
+    case RFCOMM_MX_FCOFF:
+        if (length != RFCOMM_MX_FCOFF_LEN)
+            break;
+
+        osi_free(p_buf);
+
+        rfc_process_fcoff (p_mcb, is_command);
+        return;
+
+    case RFCOMM_MX_MSC:
+
+        ea                   = *p_data & RFCOMM_EA;
+        cr                   = (*p_data & RFCOMM_CR_MASK) >> RFCOMM_SHIFT_CR;
+        p_rx_frame->dlci = *p_data++ >> RFCOMM_SHIFT_DLCI;
+
+        if (!ea || !cr || !p_rx_frame->dlci
+         || !RFCOMM_VALID_DLCI (p_rx_frame->dlci))
+        {
+            RFCOMM_TRACE_ERROR ("Bad MSC frame");
+            break;
+        }
+
+        p_rx_frame->u.msc.signals        = *p_data++;
+
+        if (mx_len == RFCOMM_MX_MSC_LEN_WITH_BREAK)
+        {
+            p_rx_frame->u.msc.break_present  = *p_data & RFCOMM_MSC_BREAK_PRESENT_MASK;
+            p_rx_frame->u.msc.break_duration = (*p_data & RFCOMM_MSC_BREAK_MASK) >> RFCOMM_MSC_SHIFT_BREAK;
+        }
+        else
+        {
+            p_rx_frame->u.msc.break_present  = FALSE;
+            p_rx_frame->u.msc.break_duration = 0;
+        }
+        osi_free(p_buf);
+
+        rfc_process_msc (p_mcb, is_command, p_rx_frame);
+        return;
+
+    case RFCOMM_MX_NSC:
+        if ((length != RFCOMM_MX_NSC_LEN) || !is_command)
+            break;
+
+        p_rx_frame->u.nsc.ea   = *p_data & RFCOMM_EA;
+        p_rx_frame->u.nsc.cr   = (*p_data & RFCOMM_CR_MASK) >> RFCOMM_SHIFT_CR;
+        p_rx_frame->u.nsc.type = *p_data++ >> RFCOMM_SHIFT_DLCI;
+
+        osi_free(p_buf);
+
+        rfc_process_nsc (p_mcb, p_rx_frame);
+        return;
+
+    case RFCOMM_MX_RPN:
+        if ((length != RFCOMM_MX_RPN_REQ_LEN) && (length != RFCOMM_MX_RPN_LEN))
+            break;
+
+        ea                   = *p_data & RFCOMM_EA;
+        cr                   = (*p_data & RFCOMM_CR_MASK) >> RFCOMM_SHIFT_CR;
+        p_rx_frame->dlci = *p_data++ >> RFCOMM_SHIFT_DLCI;
+
+        if (!ea || !cr || !p_rx_frame->dlci
+         || !RFCOMM_VALID_DLCI (p_rx_frame->dlci))
+        {
+            RFCOMM_TRACE_ERROR ("Bad RPN frame");
+            break;
+        }
+
+        p_rx_frame->u.rpn.is_request  = (length == RFCOMM_MX_RPN_REQ_LEN);
+
+        if (!p_rx_frame->u.rpn.is_request)
+        {
+            p_rx_frame->u.rpn.baud_rate   = *p_data++;
+            p_rx_frame->u.rpn.byte_size   = (*p_data >> RFCOMM_RPN_BITS_SHIFT) & RFCOMM_RPN_BITS_MASK;
+            p_rx_frame->u.rpn.stop_bits   = (*p_data >> RFCOMM_RPN_STOP_BITS_SHIFT) & RFCOMM_RPN_STOP_BITS_MASK;
+            p_rx_frame->u.rpn.parity      = (*p_data >> RFCOMM_RPN_PARITY_SHIFT) & RFCOMM_RPN_PARITY_MASK;
+            p_rx_frame->u.rpn.parity_type = (*p_data++ >> RFCOMM_RPN_PARITY_TYPE_SHIFT) & RFCOMM_RPN_PARITY_TYPE_MASK;
+
+            p_rx_frame->u.rpn.fc_type     = *p_data++ & RFCOMM_FC_MASK;
+            p_rx_frame->u.rpn.xon_char    = *p_data++;
+            p_rx_frame->u.rpn.xoff_char   = *p_data++;
+            p_rx_frame->u.rpn.param_mask  = (*p_data + (*(p_data + 1) << 8)) & RFCOMM_RPN_PM_MASK;
+        }
+        osi_free(p_buf);
+
+        rfc_process_rpn (p_mcb, is_command, p_rx_frame->u.rpn.is_request, p_rx_frame);
+        return;
+
+    case RFCOMM_MX_RLS:
+        if (length != RFCOMM_MX_RLS_LEN)
+            break;
+
+        ea = *p_data & RFCOMM_EA;
+        cr = (*p_data & RFCOMM_CR_MASK) >> RFCOMM_SHIFT_CR;
+
+        p_rx_frame->dlci              = *p_data++ >> RFCOMM_SHIFT_DLCI;
+        p_rx_frame->u.rls.line_status = (*p_data & ~0x01);
+
+        if (!ea || !cr || !p_rx_frame->dlci
+         || !RFCOMM_VALID_DLCI (p_rx_frame->dlci))
+        {
+            RFCOMM_TRACE_ERROR ("Bad RPN frame");
+            break;
+        }
+
+        osi_free(p_buf);
+
+        rfc_process_rls (p_mcb, is_command, p_rx_frame);
+        return;
+    }
+
+    osi_free(p_buf);
+
+    if (is_command)
+        rfc_send_nsc (p_mcb);
+}
+
diff --git a/rtkbt/code/bt/stack/rfcomm/rfc_utils.c b/rtkbt/code/bt/stack/rfcomm/rfc_utils.c
new file mode 100755
index 0000000..2fa7ca8
--- /dev/null
+++ b/rtkbt/code/bt/stack/rfcomm/rfc_utils.c
@@ -0,0 +1,474 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/*****************************************************************************
+ *
+ *  This file contains collection of utility functions used the RFCOMM unit
+ *
+ *****************************************************************************/
+
+#include "bt_target.h"
+#include "bt_common.h"
+
+#include "btm_api.h"
+#include "btm_int.h"
+#include "rfcdefs.h"
+#include "port_api.h"
+#include "port_ext.h"
+#include "port_int.h"
+#include "rfc_int.h"
+#include "btu.h"
+#include "bt_utils.h"
+
+#include <string.h>
+
+extern fixed_queue_t *btu_general_alarm_queue;
+
+/*******************************************************************************
+**
+** Function         rfc_calc_fcs
+**
+** Description      Reversed CRC Table , 8-bit, poly=0x07
+**                  (GSM 07.10 TS 101 369 V6.3.0)
+*******************************************************************************/
+static const UINT8 rfc_crctable[] =
+{
+    0x00, 0x91, 0xE3, 0x72, 0x07, 0x96, 0xE4, 0x75,  0x0E, 0x9F, 0xED, 0x7C, 0x09, 0x98, 0xEA, 0x7B,
+    0x1C, 0x8D, 0xFF, 0x6E, 0x1B, 0x8A, 0xF8, 0x69,  0x12, 0x83, 0xF1, 0x60, 0x15, 0x84, 0xF6, 0x67,
+    0x38, 0xA9, 0xDB, 0x4A, 0x3F, 0xAE, 0xDC, 0x4D,  0x36, 0xA7, 0xD5, 0x44, 0x31, 0xA0, 0xD2, 0x43,
+    0x24, 0xB5, 0xC7, 0x56, 0x23, 0xB2, 0xC0, 0x51,  0x2A, 0xBB, 0xC9, 0x58, 0x2D, 0xBC, 0xCE, 0x5F,
+
+    0x70, 0xE1, 0x93, 0x02, 0x77, 0xE6, 0x94, 0x05,  0x7E, 0xEF, 0x9D, 0x0C, 0x79, 0xE8, 0x9A, 0x0B,
+    0x6C, 0xFD, 0x8F, 0x1E, 0x6B, 0xFA, 0x88, 0x19,  0x62, 0xF3, 0x81, 0x10, 0x65, 0xF4, 0x86, 0x17,
+    0x48, 0xD9, 0xAB, 0x3A, 0x4F, 0xDE, 0xAC, 0x3D,  0x46, 0xD7, 0xA5, 0x34, 0x41, 0xD0, 0xA2, 0x33,
+    0x54, 0xC5, 0xB7, 0x26, 0x53, 0xC2, 0xB0, 0x21,  0x5A, 0xCB, 0xB9, 0x28, 0x5D, 0xCC, 0xBE, 0x2F,
+
+    0xE0, 0x71, 0x03, 0x92, 0xE7, 0x76, 0x04, 0x95,  0xEE, 0x7F, 0x0D, 0x9C, 0xE9, 0x78, 0x0A, 0x9B,
+    0xFC, 0x6D, 0x1F, 0x8E, 0xFB, 0x6A, 0x18, 0x89,  0xF2, 0x63, 0x11, 0x80, 0xF5, 0x64, 0x16, 0x87,
+    0xD8, 0x49, 0x3B, 0xAA, 0xDF, 0x4E, 0x3C, 0xAD,  0xD6, 0x47, 0x35, 0xA4, 0xD1, 0x40, 0x32, 0xA3,
+    0xC4, 0x55, 0x27, 0xB6, 0xC3, 0x52, 0x20, 0xB1,  0xCA, 0x5B, 0x29, 0xB8, 0xCD, 0x5C, 0x2E, 0xBF,
+
+    0x90, 0x01, 0x73, 0xE2, 0x97, 0x06, 0x74, 0xE5,  0x9E, 0x0F, 0x7D, 0xEC, 0x99, 0x08, 0x7A, 0xEB,
+    0x8C, 0x1D, 0x6F, 0xFE, 0x8B, 0x1A, 0x68, 0xF9,  0x82, 0x13, 0x61, 0xF0, 0x85, 0x14, 0x66, 0xF7,
+    0xA8, 0x39, 0x4B, 0xDA, 0xAF, 0x3E, 0x4C, 0xDD,  0xA6, 0x37, 0x45, 0xD4, 0xA1, 0x30, 0x42, 0xD3,
+    0xB4, 0x25, 0x57, 0xC6, 0xB3, 0x22, 0x50, 0xC1,  0xBA, 0x2B, 0x59, 0xC8, 0xBD, 0x2C, 0x5E, 0xCF
+};
+
+
+/*******************************************************************************
+**
+** Function         rfc_calc_fcs
+**
+** Description      This function calculate FCS for the RFCOMM frame
+**                  (GSM 07.10 TS 101 369 V6.3.0)
+**
+** Input            len - number of bytes in the message
+**                  p   - points to message
+**
+*******************************************************************************/
+UINT8 rfc_calc_fcs (UINT16 len, UINT8 *p)
+{
+    UINT8  fcs = 0xFF;
+
+    while (len--)
+    {
+        fcs = rfc_crctable[fcs ^ *p++];
+    }
+
+    /* Ones compliment */
+    return (0xFF - fcs);
+}
+
+
+/*******************************************************************************
+**
+** Function         rfc_check_fcs
+**
+** Description      This function checks FCS for the RFCOMM frame
+**                  (GSM 07.10 TS 101 369 V6.3.0)
+**
+** Input            len          - number of bytes in the message
+**                  p            - points to message
+**                  received_fcs - received FCS
+**
+*******************************************************************************/
+BOOLEAN rfc_check_fcs (UINT16 len, UINT8 *p, UINT8 received_fcs)
+{
+    UINT8  fcs = 0xFF;
+
+    while (len--)
+    {
+        fcs = rfc_crctable[fcs ^ *p++];
+    }
+
+    /* Ones compliment */
+    fcs = rfc_crctable[fcs ^ received_fcs];
+
+    /*0xCF is the reversed order of 11110011.*/
+    return (fcs == 0xCF);
+}
+
+
+/*******************************************************************************
+**
+** Function         rfc_alloc_multiplexer_channel
+**
+** Description      This function returns existing or new control block for
+**                  the BD_ADDR.
+**
+*******************************************************************************/
+tRFC_MCB *rfc_alloc_multiplexer_channel (BD_ADDR bd_addr, BOOLEAN is_initiator)
+{
+    int i, j;
+    tRFC_MCB *p_mcb = NULL;
+    RFCOMM_TRACE_DEBUG("rfc_alloc_multiplexer_channel: bd_addr:%02x:%02x:%02x:%02x:%02x:%02x",
+                                bd_addr[0], bd_addr[1], bd_addr[2], bd_addr[3], bd_addr[4], bd_addr[5]);
+    RFCOMM_TRACE_DEBUG("rfc_alloc_multiplexer_channel:is_initiator:%d", is_initiator);
+
+    for (i = 0; i < MAX_BD_CONNECTIONS; i++)
+    {
+        RFCOMM_TRACE_DEBUG("rfc_alloc_multiplexer_channel rfc_cb.port.rfc_mcb[%d].state:%d",
+                            i, rfc_cb.port.rfc_mcb[i].state);
+        RFCOMM_TRACE_DEBUG("(rfc_cb.port.rfc_mcb[i].bd_addr:%02x:%02x:%02x:%02x:%02x:%02x",
+                                rfc_cb.port.rfc_mcb[i].bd_addr[0], rfc_cb.port.rfc_mcb[i].bd_addr[1],
+                                rfc_cb.port.rfc_mcb[i].bd_addr[2], rfc_cb.port.rfc_mcb[i].bd_addr[3],
+                                rfc_cb.port.rfc_mcb[i].bd_addr[4], rfc_cb.port.rfc_mcb[i].bd_addr[5]);
+
+        if ((rfc_cb.port.rfc_mcb[i].state != RFC_MX_STATE_IDLE)
+         && (!memcmp (rfc_cb.port.rfc_mcb[i].bd_addr, bd_addr, BD_ADDR_LEN)))
+        {
+            /* Multiplexer channel found do not change anything */
+            /* If there was an inactivity timer running stop it now */
+            if (rfc_cb.port.rfc_mcb[i].state == RFC_MX_STATE_CONNECTED)
+                rfc_timer_stop (&rfc_cb.port.rfc_mcb[i]);
+            RFCOMM_TRACE_DEBUG("rfc_alloc_multiplexer_channel:is_initiator:%d, found, state:%d, p_mcb:%p",
+                                is_initiator, rfc_cb.port.rfc_mcb[i].state, &rfc_cb.port.rfc_mcb[i]);
+            return (&rfc_cb.port.rfc_mcb[i]);
+        }
+    }
+
+    /* connection with bd_addr does not exist */
+    for (i = 0, j = rfc_cb.rfc.last_mux + 1; i < MAX_BD_CONNECTIONS; i++, j++)
+    {
+        if (j >= MAX_BD_CONNECTIONS)
+            j = 0;
+
+        p_mcb = &rfc_cb.port.rfc_mcb[j];
+        if (rfc_cb.port.rfc_mcb[j].state == RFC_MX_STATE_IDLE)
+        {
+            /* New multiplexer control block */
+            alarm_free(p_mcb->mcb_timer);
+            fixed_queue_free(p_mcb->cmd_q, NULL);
+            memset (p_mcb, 0, sizeof (tRFC_MCB));
+            memcpy (p_mcb->bd_addr, bd_addr, BD_ADDR_LEN);
+            RFCOMM_TRACE_DEBUG("rfc_alloc_multiplexer_channel:is_initiator:%d, create new p_mcb:%p, index:%d",
+                                is_initiator, &rfc_cb.port.rfc_mcb[j], j);
+
+            p_mcb->mcb_timer = alarm_new("rfcomm_mcb.mcb_timer");
+            p_mcb->cmd_q = fixed_queue_new(SIZE_MAX);
+
+            p_mcb->is_initiator = is_initiator;
+
+            rfc_timer_start (p_mcb, RFC_MCB_INIT_INACT_TIMER);
+
+            rfc_cb.rfc.last_mux = (UINT8) j;
+            return (p_mcb);
+        }
+    }
+    return (NULL);
+}
+
+
+/*******************************************************************************
+**
+** Function         rfc_release_multiplexer_channel
+**
+** Description      Release a multiplexer control block
+**
+*******************************************************************************/
+void rfc_release_multiplexer_channel (tRFC_MCB *p_mcb)
+{
+    /* Remove the MCB from the mapping table */
+    rfc_save_lcid_mcb(NULL, p_mcb->lcid);
+
+    /* Remove the MCB from the ports */
+    for (int i = 0; i < MAX_RFC_PORTS; i++) {
+        if (rfc_cb.port.port[i].rfc.p_mcb == p_mcb)
+            rfc_cb.port.port[i].rfc.p_mcb = NULL;
+    }
+
+    rfc_timer_stop (p_mcb);
+    alarm_free(p_mcb->mcb_timer);
+
+    fixed_queue_free(p_mcb->cmd_q, osi_free);
+
+    memset (p_mcb, 0, sizeof (tRFC_MCB));
+    p_mcb->state = RFC_MX_STATE_IDLE;
+}
+
+
+/*******************************************************************************
+**
+** Function         rfc_timer_start
+**
+** Description      Start RFC Timer
+**
+*******************************************************************************/
+void rfc_timer_start(tRFC_MCB *p_mcb, UINT16 timeout)
+{
+    RFCOMM_TRACE_EVENT ("%s - timeout:%d seconds", __func__, timeout);
+
+    period_ms_t interval_ms = timeout * 1000;
+    alarm_set_on_queue(p_mcb->mcb_timer, interval_ms,
+                       rfcomm_mcb_timer_timeout, p_mcb,
+                       btu_general_alarm_queue);
+}
+
+
+/*******************************************************************************
+**
+** Function         rfc_timer_stop
+**
+** Description      Stop RFC Timer
+**
+*******************************************************************************/
+void rfc_timer_stop(tRFC_MCB *p_mcb)
+{
+    RFCOMM_TRACE_EVENT("%s", __func__);
+
+    alarm_cancel(p_mcb->mcb_timer);
+}
+
+
+/*******************************************************************************
+**
+** Function         rfc_port_timer_start
+**
+** Description      Start RFC Timer
+**
+*******************************************************************************/
+void rfc_port_timer_start(tPORT *p_port, UINT16 timeout)
+{
+    RFCOMM_TRACE_EVENT("%s - timeout:%d seconds", __func__, timeout);
+
+    period_ms_t interval_ms = timeout * 1000;
+    alarm_set_on_queue(p_port->rfc.port_timer, interval_ms,
+                       rfcomm_port_timer_timeout, p_port,
+                       btu_general_alarm_queue);
+}
+
+/*******************************************************************************
+**
+** Function         rfc_port_timer_stop
+**
+** Description      Stop RFC Timer
+**
+*******************************************************************************/
+void rfc_port_timer_stop(tPORT *p_port)
+{
+    RFCOMM_TRACE_EVENT ("%s", __func__);
+
+    alarm_cancel(p_port->rfc.port_timer);
+}
+
+
+/*******************************************************************************
+**
+** Function         rfc_check_mcb_active
+**
+** Description      Check if there are any opened ports on the MCB if not
+**                  start MCB Inact timer.
+**
+** Returns          void
+**
+*******************************************************************************/
+void rfc_check_mcb_active (tRFC_MCB *p_mcb)
+{
+    UINT16 i;
+
+    for (i = 0; i < RFCOMM_MAX_DLCI; i++)
+    {
+        if (p_mcb->port_inx[i] != 0)
+        {
+            p_mcb->is_disc_initiator = FALSE;
+            return;
+        }
+    }
+    /* The last port was DISCed.  On the client side start disconnecting Mx */
+    /* On the server side start inactivity timer */
+    if (p_mcb->is_disc_initiator)
+    {
+        p_mcb->is_disc_initiator = FALSE;
+        rfc_mx_sm_execute (p_mcb, RFC_MX_EVENT_CLOSE_REQ, NULL);
+    }
+    else
+        rfc_timer_start (p_mcb, RFC_MCB_RELEASE_INACT_TIMER);
+}
+
+void rfcomm_port_timer_timeout(void *data)
+{
+    tPORT *p_port = (tPORT *)data;
+
+    rfc_port_sm_execute(p_port, RFC_EVENT_TIMEOUT, NULL);
+}
+
+void rfcomm_mcb_timer_timeout(void *data)
+{
+    tRFC_MCB *p_mcb = (tRFC_MCB *)data;
+
+    rfc_mx_sm_execute(p_mcb, RFC_EVENT_TIMEOUT, NULL);
+}
+
+/*******************************************************************************
+**
+** Function         rfc_sec_check_complete
+**
+** Description      The function called when Security Manager finishes
+**                  verification of the service side connection
+**
+** Returns          void
+**
+*******************************************************************************/
+void rfc_sec_check_complete (BD_ADDR bd_addr, tBT_TRANSPORT transport, void *p_ref_data, UINT8 res)
+{
+    tPORT *p_port = (tPORT *)p_ref_data;
+    UNUSED(bd_addr);
+    UNUSED(transport);
+
+    /* Verify that PORT is still waiting for Security to complete */
+    if (!p_port->in_use
+     || ((p_port->rfc.state != RFC_STATE_ORIG_WAIT_SEC_CHECK)
+      && (p_port->rfc.state != RFC_STATE_TERM_WAIT_SEC_CHECK)))
+        return;
+
+    rfc_port_sm_execute ((tPORT *)p_ref_data, RFC_EVENT_SEC_COMPLETE, &res);
+}
+
+
+/*******************************************************************************
+**
+** Function         rfc_port_closed
+**
+** Description      The function is called when port is released based on the
+**                  event received from the lower layer, typically L2CAP
+**                  connection down, DISC, or DM frame.
+**
+** Returns          void
+**
+*******************************************************************************/
+void rfc_port_closed (tPORT *p_port)
+{
+    tRFC_MCB *p_mcb = p_port->rfc.p_mcb;
+
+    RFCOMM_TRACE_DEBUG ("rfc_port_closed");
+
+    rfc_port_timer_stop (p_port);
+
+    p_port->rfc.state = RFC_STATE_CLOSED;
+
+    /* If multiplexer channel was up mark it as down */
+    if (p_mcb)
+    {
+        p_mcb->port_inx[p_port->dlci] = 0;
+
+        /* If there are no more ports opened on this MCB release it */
+        rfc_check_mcb_active (p_mcb);
+    }
+
+    /* Notify port that RFC connection is gone */
+    port_rfc_closed (p_port, PORT_CLOSED);
+}
+
+/*******************************************************************************
+**
+** Function         rfc_inc_credit
+**
+** Description      The function is called when a credit is received in a UIH
+**                  frame.  It increments the TX credit count, and if data
+**                  flow had halted, it restarts it.
+**
+** Returns          void
+**
+*******************************************************************************/
+void rfc_inc_credit (tPORT *p_port, UINT8 credit)
+{
+    if (p_port->rfc.p_mcb->flow == PORT_FC_CREDIT)
+    {
+        p_port->credit_tx += credit;
+
+        RFCOMM_TRACE_EVENT ("rfc_inc_credit:%d", p_port->credit_tx);
+
+        if (p_port->tx.peer_fc == TRUE)
+            PORT_FlowInd(p_port->rfc.p_mcb, p_port->dlci, TRUE);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         rfc_dec_credit
+**
+** Description      The function is called when a UIH frame of user data is
+**                  sent.  It decrements the credit count.  If credit count
+**                  Reaches zero, peer_fc is set.
+**
+** Returns          void
+**
+*******************************************************************************/
+void rfc_dec_credit (tPORT *p_port)
+{
+    if (p_port->rfc.p_mcb->flow == PORT_FC_CREDIT)
+    {
+        if (p_port->credit_tx > 0)
+            p_port->credit_tx--;
+
+        if (p_port->credit_tx == 0)
+            p_port->tx.peer_fc = TRUE;
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         rfc_check_send_cmd
+**
+** Description      This function is called to send an RFCOMM command message
+**                  or to handle the RFCOMM command message queue.
+**
+** Returns          void
+**
+*******************************************************************************/
+void rfc_check_send_cmd(tRFC_MCB *p_mcb, BT_HDR *p_buf)
+{
+    /* if passed a buffer queue it */
+    if (p_buf != NULL) {
+        if (p_mcb->cmd_q == NULL) {
+            RFCOMM_TRACE_ERROR("%s: empty queue: p_mcb = %p p_mcb->lcid = %u cached p_mcb = %p",
+                               __func__, p_mcb, p_mcb->lcid,
+                               rfc_find_lcid_mcb(p_mcb->lcid));
+        }
+        fixed_queue_enqueue(p_mcb->cmd_q, p_buf);
+    }
+
+    /* handle queue if L2CAP not congested */
+    while (p_mcb->l2cap_congested == FALSE) {
+        BT_HDR *p = (BT_HDR *)fixed_queue_try_dequeue(p_mcb->cmd_q);
+        if (p == NULL)
+            break;
+        L2CA_DataWrite(p_mcb->lcid, p);
+    }
+}
diff --git a/rtkbt/code/bt/stack/sdp/sdp_api.c b/rtkbt/code/bt/stack/sdp/sdp_api.c
new file mode 100755
index 0000000..f5033cf
--- /dev/null
+++ b/rtkbt/code/bt/stack/sdp/sdp_api.c
@@ -0,0 +1,1277 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  this file contains SDP interface functions
+ *
+ ******************************************************************************/
+
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+
+#include "bt_target.h"
+#include "bt_utils.h"
+#include "bt_common.h"
+#include "l2cdefs.h"
+#include "hcidefs.h"
+#include "hcimsgs.h"
+
+#include "sdp_api.h"
+#include "sdpint.h"
+#include "btu.h"
+
+#include "osi/include/osi.h"
+
+/**********************************************************************
+**   C L I E N T    F U N C T I O N    P R O T O T Y P E S            *
+***********************************************************************/
+
+/*******************************************************************************
+**
+** Function         SDP_InitDiscoveryDb
+**
+** Description      This function is called to initialize a discovery database.
+**
+** Parameters:      p_db        - (input) address of an area of memory where the
+**                                        discovery database is managed.
+**                  len         - (input) size (in bytes) of the memory
+**                                  NOTE: This must be larger than sizeof(tSDP_DISCOVERY_DB)
+**                  num_uuid    - (input) number of UUID filters applied
+**                  p_uuid_list - (input) list of UUID filters
+**                  num_attr    - (input) number of attribute filters applied
+**                  p_attr_list - (input) list of attribute filters
+**
+**
+** Returns          BOOLEAN
+**                          TRUE if successful
+**                          FALSE if one or more parameters are bad
+**
+*******************************************************************************/
+BOOLEAN SDP_InitDiscoveryDb (tSDP_DISCOVERY_DB *p_db, UINT32 len, UINT16 num_uuid,
+                             tSDP_UUID *p_uuid_list, UINT16 num_attr, UINT16 *p_attr_list)
+{
+#if SDP_CLIENT_ENABLED == TRUE
+    UINT16  xx;
+
+    /* verify the parameters */
+    if (p_db == NULL || (sizeof (tSDP_DISCOVERY_DB) > len) ||
+        num_attr > SDP_MAX_ATTR_FILTERS || num_uuid > SDP_MAX_UUID_FILTERS)
+    {
+        SDP_TRACE_ERROR("SDP_InitDiscoveryDb Illegal param: p_db 0x%x, len %d, num_uuid %d, num_attr %d",
+                        PTR_TO_UINT(p_db), len, num_uuid, num_attr);
+
+        return(FALSE);
+    }
+
+    memset (p_db, 0, (size_t)len);
+
+    p_db->mem_size = len - sizeof (tSDP_DISCOVERY_DB);
+    p_db->mem_free = p_db->mem_size;
+    p_db->p_first_rec = NULL;
+    p_db->p_free_mem = (UINT8 *)(p_db + 1);
+
+    for (xx = 0; xx < num_uuid; xx++)
+        p_db->uuid_filters[xx] = *p_uuid_list++;
+
+    p_db->num_uuid_filters = num_uuid;
+
+    for (xx = 0; xx < num_attr; xx++)
+        p_db->attr_filters[xx] = *p_attr_list++;
+
+    /* sort attributes */
+    sdpu_sort_attr_list( num_attr, p_db );
+
+    p_db->num_attr_filters = num_attr;
+#endif
+    return(TRUE);
+}
+
+
+
+/*******************************************************************************
+**
+** Function         SDP_CancelServiceSearch
+**
+** Description      This function cancels an active query to an SDP server.
+**
+** Returns          TRUE if discovery cancelled, FALSE if a matching activity is not found.
+**
+*******************************************************************************/
+BOOLEAN SDP_CancelServiceSearch (tSDP_DISCOVERY_DB *p_db)
+{
+#if SDP_CLIENT_ENABLED == TRUE
+    tCONN_CB     *p_ccb = sdpu_find_ccb_by_db (p_db);
+    if (!p_ccb)
+        return(FALSE);
+
+    sdp_disconnect (p_ccb, SDP_CANCEL);
+    p_ccb->disc_state = SDP_DISC_WAIT_CANCEL;
+#endif
+    return(TRUE);
+}
+
+
+
+/*******************************************************************************
+**
+** Function         SDP_ServiceSearchRequest
+**
+** Description      This function queries an SDP server for information.
+**
+** Returns          TRUE if discovery started, FALSE if failed.
+**
+*******************************************************************************/
+BOOLEAN SDP_ServiceSearchRequest (UINT8 *p_bd_addr, tSDP_DISCOVERY_DB *p_db,
+                                  tSDP_DISC_CMPL_CB *p_cb)
+{
+#if SDP_CLIENT_ENABLED == TRUE
+    tCONN_CB     *p_ccb;
+
+    /* Specific BD address */
+    p_ccb = sdp_conn_originate (p_bd_addr);
+
+    if (!p_ccb)
+        return(FALSE);
+
+    p_ccb->disc_state = SDP_DISC_WAIT_CONN;
+    p_ccb->p_db       = p_db;
+    p_ccb->p_cb       = p_cb;
+
+    return(TRUE);
+#else
+    return(FALSE);
+#endif
+}
+
+
+/*******************************************************************************
+**
+** Function         SDP_ServiceSearchAttributeRequest
+**
+** Description      This function queries an SDP server for information.
+**
+**                  The difference between this API function and the function
+**                  SDP_ServiceSearchRequest is that this one does a
+**                  combined ServiceSearchAttributeRequest SDP function.
+**                  (This is for Unplug Testing)
+**
+** Returns          TRUE if discovery started, FALSE if failed.
+**
+*******************************************************************************/
+BOOLEAN SDP_ServiceSearchAttributeRequest (UINT8 *p_bd_addr, tSDP_DISCOVERY_DB *p_db,
+                                           tSDP_DISC_CMPL_CB *p_cb)
+{
+#if SDP_CLIENT_ENABLED == TRUE
+    tCONN_CB     *p_ccb;
+
+    /* Specific BD address */
+    p_ccb = sdp_conn_originate (p_bd_addr);
+
+    if (!p_ccb)
+        return(FALSE);
+
+    p_ccb->disc_state = SDP_DISC_WAIT_CONN;
+    p_ccb->p_db       = p_db;
+    p_ccb->p_cb       = p_cb;
+
+    p_ccb->is_attr_search = TRUE;
+
+    return(TRUE);
+#else
+    return(FALSE);
+#endif
+}
+/*******************************************************************************
+**
+** Function         SDP_ServiceSearchAttributeRequest2
+**
+** Description      This function queries an SDP server for information.
+**
+**                  The difference between this API function and the function
+**                  SDP_ServiceSearchRequest is that this one does a
+**                  combined ServiceSearchAttributeRequest SDP function.
+**                  (This is for Unplug Testing)
+**
+** Returns          TRUE if discovery started, FALSE if failed.
+**
+*******************************************************************************/
+BOOLEAN SDP_ServiceSearchAttributeRequest2 (UINT8 *p_bd_addr, tSDP_DISCOVERY_DB *p_db,
+                                            tSDP_DISC_CMPL_CB2 *p_cb2, void * user_data)
+{
+#if SDP_CLIENT_ENABLED == TRUE
+    tCONN_CB     *p_ccb;
+
+    /* Specific BD address */
+    p_ccb = sdp_conn_originate (p_bd_addr);
+
+    if (!p_ccb)
+        return(FALSE);
+
+    p_ccb->disc_state = SDP_DISC_WAIT_CONN;
+    p_ccb->p_db       = p_db;
+    p_ccb->p_cb2       = p_cb2;
+
+    p_ccb->is_attr_search = TRUE;
+    p_ccb->user_data = user_data;
+
+    return(TRUE);
+#else
+    return(FALSE);
+#endif
+}
+
+#if SDP_CLIENT_ENABLED == TRUE
+void SDP_SetIdleTimeout (BD_ADDR addr, UINT16 timeout)
+{
+    UNUSED(addr);
+    UNUSED(timeout);
+}
+#endif
+
+/*******************************************************************************
+**
+** Function         SDP_FindAttributeInDb
+**
+** Description      This function queries an SDP database for a specific attribute.
+**                  If the p_start_rec pointer is NULL, it looks from the beginning
+**                  of the database, else it continues from the next record after
+**                  p_start_rec.
+**
+** Returns          Pointer to matching record, or NULL
+**
+*******************************************************************************/
+tSDP_DISC_REC *SDP_FindAttributeInDb (tSDP_DISCOVERY_DB *p_db, UINT16 attr_id,
+                                      tSDP_DISC_REC *p_start_rec)
+{
+#if SDP_CLIENT_ENABLED == TRUE
+    tSDP_DISC_REC   *p_rec;
+    tSDP_DISC_ATTR  *p_attr;
+
+    /* Must have a valid database */
+    if (p_db == NULL)
+        return(NULL);
+
+    if (!p_start_rec)
+        p_rec = p_db->p_first_rec;
+    else
+        p_rec = p_start_rec->p_next_rec;
+
+    while (p_rec)
+    {
+        p_attr = p_rec->p_first_attr;
+        while (p_attr)
+        {
+            if (p_attr->attr_id == attr_id)
+                return(p_rec);
+
+            p_attr = p_attr->p_next_attr;
+        }
+
+        p_rec = p_rec->p_next_rec;
+    }
+#endif
+    /* If here, no matching attribute found */
+    return(NULL);
+}
+
+
+/*******************************************************************************
+**
+** Function         SDP_FindAttributeInRec
+**
+** Description      This function searches an SDP discovery record for a specific
+**                  attribute.
+**
+** Returns          Pointer to matching attribute entry, or NULL
+**
+*******************************************************************************/
+tSDP_DISC_ATTR *SDP_FindAttributeInRec (tSDP_DISC_REC *p_rec, UINT16 attr_id)
+{
+#if SDP_CLIENT_ENABLED == TRUE
+    tSDP_DISC_ATTR  *p_attr;
+
+    p_attr = p_rec->p_first_attr;
+    while (p_attr)
+    {
+        if (p_attr->attr_id == attr_id)
+            return(p_attr);
+
+        p_attr = p_attr->p_next_attr;
+    }
+#endif
+    /* If here, no matching attribute found */
+    return(NULL);
+}
+
+/*******************************************************************************
+**
+** Function         SDP_FindServiceUUIDInRec
+**
+** Description      This function is called to read the service UUID within a record
+**                  if there is any.
+**
+** Parameters:      p_rec      - pointer to a SDP record.
+**                  p_uuid     - output parameter to save the UUID found.
+**
+** Returns          TRUE if found, otherwise FALSE.
+**
+*******************************************************************************/
+BOOLEAN SDP_FindServiceUUIDInRec(tSDP_DISC_REC *p_rec, tBT_UUID * p_uuid)
+{
+#if SDP_CLIENT_ENABLED == TRUE
+    tSDP_DISC_ATTR  *p_attr, *p_sattr, *p_extra_sattr;
+
+    p_attr = p_rec->p_first_attr;
+
+    while (p_attr)
+    {
+        if ((p_attr->attr_id == ATTR_ID_SERVICE_CLASS_ID_LIST)
+            && (SDP_DISC_ATTR_TYPE(p_attr->attr_len_type) == DATA_ELE_SEQ_DESC_TYPE))
+        {
+            for (p_sattr = p_attr->attr_value.v.p_sub_attr; p_sattr; p_sattr = p_sattr->p_next_attr)
+            {
+                if (SDP_DISC_ATTR_TYPE(p_sattr->attr_len_type) == UUID_DESC_TYPE)
+                {
+                    if (SDP_DISC_ATTR_LEN(p_sattr->attr_len_type) == LEN_UUID_16)
+                    {
+                        p_uuid->len = LEN_UUID_16;
+                        p_uuid->uu.uuid16 = p_sattr->attr_value.v.u16;
+                    }
+                    else if (SDP_DISC_ATTR_LEN(p_sattr->attr_len_type) == LEN_UUID_128)
+                    {
+                        p_uuid->len = LEN_UUID_128;
+                        for (uint8_t i = 0; i != LEN_UUID_128; ++i)
+                            p_uuid->uu.uuid128[i] = p_sattr->attr_value.v.array[LEN_UUID_128-i-1];
+                    }
+                    else if (SDP_DISC_ATTR_LEN(p_sattr->attr_len_type) == LEN_UUID_32)
+                    {
+                        p_uuid->len = LEN_UUID_32;
+                        p_uuid->uu.uuid32 = p_sattr->attr_value.v.u32;
+                    }
+
+                    return(TRUE);
+                }
+
+                /* Checking for Toyota G Block Car Kit:
+                **  This car kit puts an extra data element sequence
+                **  where the UUID is suppose to be!!!
+                */
+                else
+                {
+                    if (SDP_DISC_ATTR_TYPE(p_sattr->attr_len_type) == DATA_ELE_SEQ_DESC_TYPE)
+                    {
+                        /* Look through data element sequence until no more UUIDs */
+                        for (p_extra_sattr = p_sattr->attr_value.v.p_sub_attr; p_extra_sattr; p_extra_sattr = p_extra_sattr->p_next_attr)
+                        {
+                            /* Increment past this to see if the next attribut is UUID */
+                            if ((SDP_DISC_ATTR_TYPE(p_extra_sattr->attr_len_type) == UUID_DESC_TYPE)
+                                /* only support 16 bits UUID for now */
+                                && (SDP_DISC_ATTR_LEN(p_extra_sattr->attr_len_type) == 2))
+                            {
+                                p_uuid->len = 2;
+                                p_uuid->uu.uuid16 = p_extra_sattr->attr_value.v.u16;
+                                return(TRUE);
+                            }
+                        }
+                    }
+                }
+            }
+            break;
+        }
+        else if (p_attr->attr_id == ATTR_ID_SERVICE_ID)
+        {
+            if ((SDP_DISC_ATTR_TYPE(p_attr->attr_len_type) == UUID_DESC_TYPE)
+                /* only support 16 bits UUID for now */
+                && (SDP_DISC_ATTR_LEN(p_attr->attr_len_type) == 2))
+            {
+                p_uuid->len = 2;
+                p_uuid->uu.uuid16 = p_attr->attr_value.v.u16;
+                return(TRUE);
+            }
+        }
+        p_attr = p_attr->p_next_attr;
+    }
+    return FALSE;
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         SDP_FindServiceUUIDInRec_128bit
+**
+** Description      This function is called to read the 128-bit service UUID within a record
+**                  if there is any.
+**
+** Parameters:      p_rec      - pointer to a SDP record.
+**                  p_uuid     - output parameter to save the UUID found.
+**
+** Returns          TRUE if found, otherwise FALSE.
+**
+*******************************************************************************/
+BOOLEAN SDP_FindServiceUUIDInRec_128bit(tSDP_DISC_REC *p_rec, tBT_UUID * p_uuid)
+{
+#if SDP_CLIENT_ENABLED == TRUE
+    tSDP_DISC_ATTR  *p_attr = p_rec->p_first_attr;
+    while (p_attr)
+    {
+        if ((p_attr->attr_id == ATTR_ID_SERVICE_CLASS_ID_LIST)
+            && (SDP_DISC_ATTR_TYPE(p_attr->attr_len_type) == DATA_ELE_SEQ_DESC_TYPE))
+        {
+            tSDP_DISC_ATTR *p_sattr = p_attr->attr_value.v.p_sub_attr;
+            while (p_sattr)
+            {
+                if (SDP_DISC_ATTR_TYPE(p_sattr->attr_len_type) == UUID_DESC_TYPE)
+                {
+                    /* only support 128 bits UUID for now */
+                    if (SDP_DISC_ATTR_LEN(p_sattr->attr_len_type) == 16)
+                    {
+                        p_uuid->len = LEN_UUID_128;
+                        for (uint8_t i = 0; i != LEN_UUID_128; ++i)
+                            p_uuid->uu.uuid128[i] = p_sattr->attr_value.v.array[LEN_UUID_128-i-1];
+                    }
+                    return(TRUE);
+                }
+
+                p_sattr = p_sattr->p_next_attr;
+            }
+            break;
+        }
+        else if (p_attr->attr_id == ATTR_ID_SERVICE_ID)
+        {
+            if ((SDP_DISC_ATTR_TYPE(p_attr->attr_len_type) == UUID_DESC_TYPE)
+                /* only support 128 bits UUID for now */
+                && (SDP_DISC_ATTR_LEN(p_attr->attr_len_type) == 16))
+            {
+                p_uuid->len = LEN_UUID_128;
+                for (uint8_t i = 0; i != LEN_UUID_128; ++i)
+                    p_uuid->uu.uuid128[i] = p_attr->attr_value.v.array[LEN_UUID_128-i-1];
+                return(TRUE);
+            }
+        }
+        p_attr = p_attr->p_next_attr;
+    }
+    return FALSE;
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         SDP_FindServiceInDb
+**
+** Description      This function queries an SDP database for a specific service.
+**                  If the p_start_rec pointer is NULL, it looks from the beginning
+**                  of the database, else it continues from the next record after
+**                  p_start_rec.
+**
+** Returns          Pointer to record containing service class, or NULL
+**
+*******************************************************************************/
+tSDP_DISC_REC *SDP_FindServiceInDb (tSDP_DISCOVERY_DB *p_db, UINT16 service_uuid, tSDP_DISC_REC *p_start_rec)
+{
+#if SDP_CLIENT_ENABLED == TRUE
+    tSDP_DISC_REC   *p_rec;
+    tSDP_DISC_ATTR  *p_attr, *p_sattr, *p_extra_sattr;
+
+    /* Must have a valid database */
+    if (p_db == NULL)
+        return(NULL);
+
+    if (!p_start_rec)
+        p_rec = p_db->p_first_rec;
+    else
+        p_rec = p_start_rec->p_next_rec;
+
+    while (p_rec)
+    {
+        p_attr = p_rec->p_first_attr;
+        while (p_attr)
+        {
+            if ((p_attr->attr_id == ATTR_ID_SERVICE_CLASS_ID_LIST)
+                && (SDP_DISC_ATTR_TYPE(p_attr->attr_len_type) == DATA_ELE_SEQ_DESC_TYPE))
+            {
+                for (p_sattr = p_attr->attr_value.v.p_sub_attr; p_sattr; p_sattr = p_sattr->p_next_attr)
+                {
+
+                    if ((SDP_DISC_ATTR_TYPE(p_sattr->attr_len_type) == UUID_DESC_TYPE)
+                     && (SDP_DISC_ATTR_LEN(p_sattr->attr_len_type) == 2) ) {
+                        SDP_TRACE_DEBUG("SDP_FindServiceInDb - p_sattr value = 0x%x serviceuuid = 0x%x\r\n",
+                                        p_sattr->attr_value.v.u16, service_uuid);
+                        if(service_uuid == UUID_SERVCLASS_HDP_PROFILE)
+                        {
+                            if( (p_sattr->attr_value.v.u16==UUID_SERVCLASS_HDP_SOURCE) || ( p_sattr->attr_value.v.u16==UUID_SERVCLASS_HDP_SINK))
+                            {
+                                SDP_TRACE_DEBUG("SDP_FindServiceInDb found HDP source or sink\n" );
+                                return (p_rec);
+                            }
+                        }
+
+                    }
+
+                    if (SDP_DISC_ATTR_TYPE(p_sattr->attr_len_type) == UUID_DESC_TYPE && (service_uuid == 0
+                        || (SDP_DISC_ATTR_LEN(p_sattr->attr_len_type) == 2
+                            && p_sattr->attr_value.v.u16 == service_uuid)))
+                        /* for a specific uuid, or any one */
+                    {
+                        return(p_rec);
+                    }
+
+                    /* Checking for Toyota G Block Car Kit:
+                    **  This car kit puts an extra data element sequence
+                    **  where the UUID is suppose to be!!!
+                    */
+                    else
+                    {
+                        if (SDP_DISC_ATTR_TYPE(p_sattr->attr_len_type) == DATA_ELE_SEQ_DESC_TYPE)
+                        {
+                            /* Look through data element sequence until no more UUIDs */
+                            for (p_extra_sattr = p_sattr->attr_value.v.p_sub_attr; p_extra_sattr; p_extra_sattr = p_extra_sattr->p_next_attr)
+                            {
+                                /* Increment past this to see if the next attribut is UUID */
+                                if ((SDP_DISC_ATTR_TYPE(p_extra_sattr->attr_len_type) == UUID_DESC_TYPE)
+                                    && (SDP_DISC_ATTR_LEN(p_extra_sattr->attr_len_type) == 2)
+                                    /* for a specific uuid, or any one */
+                                    && ((p_extra_sattr->attr_value.v.u16 == service_uuid) || (service_uuid == 0)))
+                                {
+                                    return(p_rec);
+                                }
+                            }
+                        }
+                    }
+                }
+                break;
+            }
+            else if (p_attr->attr_id == ATTR_ID_SERVICE_ID)
+            {
+                if ((SDP_DISC_ATTR_TYPE(p_attr->attr_len_type) == UUID_DESC_TYPE)
+                    && (SDP_DISC_ATTR_LEN(p_attr->attr_len_type) == 2)
+                    /* find a specific UUID or anyone */
+                    && ((p_attr->attr_value.v.u16 == service_uuid) || service_uuid == 0))
+                    return(p_rec);
+            }
+
+            p_attr = p_attr->p_next_attr;
+        }
+
+        p_rec = p_rec->p_next_rec;
+    }
+#endif
+    /* If here, no matching UUID found */
+    return(NULL);
+}
+
+/*******************************************************************************
+**
+** Function         SDP_FindServiceInDb_128bit
+**
+** Description      This function queries an SDP database for a specific service.
+**                  If the p_start_rec pointer is NULL, it looks from the beginning
+**                  of the database, else it continues from the next record after
+**                  p_start_rec.
+**
+**                  This function is kept separate from SDP_FindServiceInDb since
+**                  that API is expected to return only 16-bit UUIDs
+**
+** Returns          Pointer to record containing service class, or NULL
+**
+*******************************************************************************/
+tSDP_DISC_REC *SDP_FindServiceInDb_128bit(tSDP_DISCOVERY_DB *p_db, tSDP_DISC_REC *p_start_rec)
+{
+#if SDP_CLIENT_ENABLED == TRUE
+    tSDP_DISC_REC   *p_rec;
+    tSDP_DISC_ATTR  *p_attr, *p_sattr;
+
+    /* Must have a valid database */
+    if (p_db == NULL)
+        return(NULL);
+
+    if (!p_start_rec)
+        p_rec = p_db->p_first_rec;
+    else
+        p_rec = p_start_rec->p_next_rec;
+
+    while (p_rec)
+    {
+        p_attr = p_rec->p_first_attr;
+        while (p_attr)
+        {
+            if ((p_attr->attr_id == ATTR_ID_SERVICE_CLASS_ID_LIST)
+                && (SDP_DISC_ATTR_TYPE(p_attr->attr_len_type) == DATA_ELE_SEQ_DESC_TYPE))
+            {
+                for (p_sattr = p_attr->attr_value.v.p_sub_attr; p_sattr; p_sattr = p_sattr->p_next_attr)
+                {
+                    if ((SDP_DISC_ATTR_TYPE(p_sattr->attr_len_type) == UUID_DESC_TYPE)
+                        && (SDP_DISC_ATTR_LEN(p_sattr->attr_len_type) == 16))
+                    {
+                        return(p_rec);
+                    }
+                }
+                break;
+            }
+            else if (p_attr->attr_id == ATTR_ID_SERVICE_ID)
+            {
+                if ((SDP_DISC_ATTR_TYPE(p_attr->attr_len_type) == UUID_DESC_TYPE)
+                    && (SDP_DISC_ATTR_LEN(p_attr->attr_len_type) == 16))
+                    return(p_rec);
+            }
+
+            p_attr = p_attr->p_next_attr;
+        }
+
+        p_rec = p_rec->p_next_rec;
+    }
+#endif
+    /* If here, no matching UUID found */
+    return(NULL);
+}
+
+
+/*******************************************************************************
+**
+** Function         SDP_FindServiceUUIDInDb
+**
+** Description      This function queries an SDP database for a specific service.
+**                  If the p_start_rec pointer is NULL, it looks from the beginning
+**                  of the database, else it continues from the next record after
+**                  p_start_rec.
+**
+** NOTE             the only difference between this function and the previous function
+**                  "SDP_FindServiceInDb()" is that this function takes a tBT_UUID input
+**
+** Returns          Pointer to record containing service class, or NULL
+**
+*******************************************************************************/
+tSDP_DISC_REC *SDP_FindServiceUUIDInDb (tSDP_DISCOVERY_DB *p_db, tBT_UUID *p_uuid, tSDP_DISC_REC *p_start_rec)
+{
+#if SDP_CLIENT_ENABLED == TRUE
+    tSDP_DISC_REC   *p_rec;
+    tSDP_DISC_ATTR  *p_attr, *p_sattr;
+
+    /* Must have a valid database */
+    if (p_db == NULL)
+        return(NULL);
+
+    if (!p_start_rec)
+        p_rec = p_db->p_first_rec;
+    else
+        p_rec = p_start_rec->p_next_rec;
+
+    while (p_rec)
+    {
+        p_attr = p_rec->p_first_attr;
+        while (p_attr)
+        {
+            if ((p_attr->attr_id == ATTR_ID_SERVICE_CLASS_ID_LIST)
+                && (SDP_DISC_ATTR_TYPE(p_attr->attr_len_type) == DATA_ELE_SEQ_DESC_TYPE))
+            {
+                for (p_sattr = p_attr->attr_value.v.p_sub_attr; p_sattr; p_sattr = p_sattr->p_next_attr)
+                {
+                    if (SDP_DISC_ATTR_TYPE(p_sattr->attr_len_type) == UUID_DESC_TYPE)
+                    {
+                        if (sdpu_compare_uuid_with_attr (p_uuid, p_sattr))
+                            return(p_rec);
+                    }
+                }
+                break;
+            }
+            else if (p_attr->attr_id == ATTR_ID_SERVICE_ID)
+            {
+                if (SDP_DISC_ATTR_TYPE(p_attr->attr_len_type) == UUID_DESC_TYPE )
+                {
+                    if (sdpu_compare_uuid_with_attr (p_uuid, p_attr))
+                        return(p_rec);
+                }
+            }
+
+            p_attr = p_attr->p_next_attr;
+        }
+
+        p_rec = p_rec->p_next_rec;
+    }
+#endif  /* CLIENT_ENABLED == TRUE */
+    /* If here, no matching UUID found */
+    return(NULL);
+}
+
+#if SDP_CLIENT_ENABLED == TRUE
+/*******************************************************************************
+**
+** Function         sdp_fill_proto_elem
+**
+** Description      This function retrieves the protocol element.
+**
+** Returns          TRUE if found, FALSE if not
+**                  If found, the passed protocol list element is filled in.
+**
+*******************************************************************************/
+static BOOLEAN sdp_fill_proto_elem( tSDP_DISC_ATTR  *p_attr, UINT16 layer_uuid,
+                                    tSDP_PROTOCOL_ELEM *p_elem)
+{
+    tSDP_DISC_ATTR  *p_sattr;
+
+    /* Walk through the protocol descriptor list */
+    for (p_attr = p_attr->attr_value.v.p_sub_attr; p_attr; p_attr = p_attr->p_next_attr)
+    {
+        /* Safety check - each entry should itself be a sequence */
+        if (SDP_DISC_ATTR_TYPE(p_attr->attr_len_type) != DATA_ELE_SEQ_DESC_TYPE)
+            return(FALSE);
+
+        /* Now, see if the entry contains the layer we are interested in */
+        for (p_sattr = p_attr->attr_value.v.p_sub_attr; p_sattr; p_sattr = p_sattr->p_next_attr)
+        {
+            /* SDP_TRACE_DEBUG ("SDP - p_sattr 0x%x, layer_uuid:0x%x, u16:0x%x####",
+                p_sattr, layer_uuid, p_sattr->attr_value.v.u16); */
+
+            if ((SDP_DISC_ATTR_TYPE(p_sattr->attr_len_type) == UUID_DESC_TYPE)
+                && (SDP_DISC_ATTR_LEN(p_sattr->attr_len_type) == 2)
+                && (p_sattr->attr_value.v.u16 == layer_uuid))
+            {
+                /* Bingo. Now fill in the passed element */
+                p_elem->protocol_uuid = layer_uuid;
+                p_elem->num_params = 0;
+
+                /* Store the parameters, if any */
+                for (p_sattr = p_sattr->p_next_attr; p_sattr; p_sattr = p_sattr->p_next_attr)
+                {
+                    if (SDP_DISC_ATTR_TYPE(p_sattr->attr_len_type) != UINT_DESC_TYPE)
+                        break;
+
+                    if (SDP_DISC_ATTR_LEN(p_sattr->attr_len_type) == 2)
+                        p_elem->params[p_elem->num_params++] = p_sattr->attr_value.v.u16;
+                    else
+                        p_elem->params[p_elem->num_params++] = p_sattr->attr_value.v.u8;
+
+                    if (p_elem->num_params >= SDP_MAX_PROTOCOL_PARAMS)
+                        break;
+                }
+                return(TRUE);
+            }
+        }
+    }
+
+    return(FALSE);
+}
+#endif  /* CLIENT_ENABLED == TRUE */
+
+/*******************************************************************************
+**
+** Function         SDP_FindProtocolListElemInRec
+**
+** Description      This function looks at a specific discovery record for a protocol
+**                  list element.
+**
+** Returns          TRUE if found, FALSE if not
+**                  If found, the passed protocol list element is filled in.
+**
+*******************************************************************************/
+BOOLEAN SDP_FindProtocolListElemInRec (tSDP_DISC_REC *p_rec, UINT16 layer_uuid, tSDP_PROTOCOL_ELEM *p_elem)
+{
+#if SDP_CLIENT_ENABLED == TRUE
+    tSDP_DISC_ATTR  *p_attr;
+
+    p_attr = p_rec->p_first_attr;
+    while (p_attr)
+    {
+        /* Find the protocol descriptor list */
+        if ((p_attr->attr_id == ATTR_ID_PROTOCOL_DESC_LIST)
+            && (SDP_DISC_ATTR_TYPE(p_attr->attr_len_type) == DATA_ELE_SEQ_DESC_TYPE))
+        {
+            return sdp_fill_proto_elem(p_attr, layer_uuid, p_elem);
+        }
+        p_attr = p_attr->p_next_attr;
+    }
+#endif
+    /* If here, no match found */
+    return(FALSE);
+}
+
+
+/*******************************************************************************
+**
+** Function         SDP_FindAddProtoListsElemInRec
+**
+** Description      This function looks at a specific discovery record for a protocol
+**                  list element.
+**
+** Returns          TRUE if found, FALSE if not
+**                  If found, the passed protocol list element is filled in.
+**
+*******************************************************************************/
+BOOLEAN SDP_FindAddProtoListsElemInRec (tSDP_DISC_REC *p_rec, UINT16 layer_uuid, tSDP_PROTOCOL_ELEM *p_elem)
+{
+#if SDP_CLIENT_ENABLED == TRUE
+    tSDP_DISC_ATTR  *p_attr, *p_sattr;
+    BOOLEAN         ret = FALSE;
+
+    p_attr = p_rec->p_first_attr;
+    while (p_attr)
+    {
+        /* Find the additional protocol descriptor list attribute */
+        if ((p_attr->attr_id == ATTR_ID_ADDITION_PROTO_DESC_LISTS)
+            && (SDP_DISC_ATTR_TYPE(p_attr->attr_len_type) == DATA_ELE_SEQ_DESC_TYPE))
+        {
+            for (p_sattr = p_attr->attr_value.v.p_sub_attr; p_sattr; p_sattr = p_sattr->p_next_attr)
+            {
+                /* Safety check - each entry should itself be a sequence */
+                if (SDP_DISC_ATTR_TYPE(p_sattr->attr_len_type) == DATA_ELE_SEQ_DESC_TYPE)
+                {
+                    if ( (ret = sdp_fill_proto_elem(p_sattr, layer_uuid, p_elem)) == TRUE)
+                        break;
+                }
+            }
+            return ret;
+        }
+        p_attr = p_attr->p_next_attr;
+    }
+#endif
+    /* If here, no match found */
+    return(FALSE);
+}
+
+
+/*******************************************************************************
+**
+** Function         SDP_FindProfileVersionInRec
+**
+** Description      This function looks at a specific discovery record for the
+**                  Profile list descriptor, and pulls out the version number.
+**                  The version number consists of an 8-bit major version and
+**                  an 8-bit minor version.
+**
+** Returns          TRUE if found, FALSE if not
+**                  If found, the major and minor version numbers that were passed
+**                  in are filled in.
+**
+*******************************************************************************/
+BOOLEAN SDP_FindProfileVersionInRec (tSDP_DISC_REC *p_rec, UINT16 profile_uuid, UINT16 *p_version)
+{
+#if SDP_CLIENT_ENABLED == TRUE
+    tSDP_DISC_ATTR  *p_attr, *p_sattr;
+
+    p_attr = p_rec->p_first_attr;
+    while (p_attr)
+    {
+        /* Find the profile descriptor list */
+        if ((p_attr->attr_id == ATTR_ID_BT_PROFILE_DESC_LIST)
+            && (SDP_DISC_ATTR_TYPE(p_attr->attr_len_type) == DATA_ELE_SEQ_DESC_TYPE))
+        {
+            /* Walk through the protocol descriptor list */
+            for (p_attr = p_attr->attr_value.v.p_sub_attr; p_attr; p_attr = p_attr->p_next_attr)
+            {
+                /* Safety check - each entry should itself be a sequence */
+                if (SDP_DISC_ATTR_TYPE(p_attr->attr_len_type) != DATA_ELE_SEQ_DESC_TYPE)
+                    return(FALSE);
+
+                /* Now, see if the entry contains the profile UUID we are interested in */
+                for (p_sattr = p_attr->attr_value.v.p_sub_attr; p_sattr; p_sattr = p_sattr->p_next_attr)
+                {
+                    if ((SDP_DISC_ATTR_TYPE(p_sattr->attr_len_type) == UUID_DESC_TYPE)
+                        && (SDP_DISC_ATTR_LEN(p_sattr->attr_len_type) == 2)  /* <- This is bytes, not size code! */
+                        && (p_sattr->attr_value.v.u16 == profile_uuid))
+                    {
+                        /* Now fill in the major and minor numbers */
+                        /* if the attribute matches the description for version (type UINT, size 2 bytes) */
+                        p_sattr = p_sattr->p_next_attr;
+
+                        if ((SDP_DISC_ATTR_TYPE(p_sattr->attr_len_type) == UINT_DESC_TYPE) &&
+                            (SDP_DISC_ATTR_LEN(p_sattr->attr_len_type) == 2))
+                        {
+                            /* The high order 8 bits is the major number, low order is the minor number (big endian) */
+                            *p_version = p_sattr->attr_value.v.u16;
+
+                            return(TRUE);
+                        }
+                        else
+                            return(FALSE);  /* The type and/or size was not valid for the profile list version */
+                    }
+                }
+            }
+
+            return(FALSE);
+        }
+        p_attr = p_attr->p_next_attr;
+    }
+#endif  /* CLIENT_ENABLED == TRUE */
+
+    /* If here, no match found */
+    return(FALSE);
+}
+
+/*******************************************************************************
+**                   Device Identification (DI) Client Functions
+*******************************************************************************/
+
+/*******************************************************************************
+**
+** Function         SDP_DiDiscover
+**
+** Description      This function queries a remote device for DI information.
+**
+** Returns          SDP_SUCCESS if query started successfully, else error
+**
+*******************************************************************************/
+UINT16 SDP_DiDiscover( BD_ADDR remote_device, tSDP_DISCOVERY_DB *p_db,
+                       UINT32 len, tSDP_DISC_CMPL_CB *p_cb )
+{
+#if SDP_CLIENT_ENABLED == TRUE
+    UINT16  result   = SDP_DI_DISC_FAILED;
+    UINT16  num_uuids = 1;
+    UINT16  di_uuid   = UUID_SERVCLASS_PNP_INFORMATION;
+
+    /* build uuid for db init */
+    tSDP_UUID init_uuid;
+    init_uuid.len = 2;
+    init_uuid.uu.uuid16 = di_uuid;
+
+    if ( SDP_InitDiscoveryDb(p_db, len, num_uuids, &init_uuid, 0, NULL) )
+        if ( SDP_ServiceSearchRequest(remote_device, p_db, p_cb) )
+            result = SDP_SUCCESS;
+
+    return result;
+#else
+    return SDP_DI_DISC_FAILED;
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         SDP_GetNumDiRecords
+**
+** Description      Searches specified database for DI records
+**
+** Returns          number of DI records found
+**
+*******************************************************************************/
+UINT8 SDP_GetNumDiRecords( tSDP_DISCOVERY_DB *p_db )
+{
+#if SDP_CLIENT_ENABLED == TRUE
+    UINT8   num_records = 0;
+    tSDP_DISC_REC *p_curr_record = NULL;
+
+    do
+    {
+        p_curr_record = SDP_FindServiceInDb( p_db, UUID_SERVCLASS_PNP_INFORMATION,
+                                             p_curr_record );
+        if ( p_curr_record )
+            num_records++;
+    }while ( p_curr_record );
+
+    return num_records;
+#else
+    return 0;
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         SDP_AttrStringCopy
+**
+** Description      This function copy given attribute to specified buffer as a string
+**
+** Returns          none
+**
+*******************************************************************************/
+static void SDP_AttrStringCopy(char *dst, tSDP_DISC_ATTR *p_attr, UINT16 dst_size)
+{
+    if ( dst == NULL ) return;
+    if ( p_attr )
+    {
+        UINT16 len = SDP_DISC_ATTR_LEN(p_attr->attr_len_type);
+        if ( len > dst_size - 1 )
+        {
+            len = dst_size - 1;
+        }
+        memcpy(dst, (char *)p_attr->attr_value.v.array, len);
+        dst[len] = '\0';
+    }
+    else
+    {
+        dst[0] = '\0';
+    }
+}
+
+/*******************************************************************************
+**
+** Function         SDP_GetDiRecord
+**
+** Description      This function retrieves a remote device's DI record from
+**                  the specified database.
+**
+** Returns          SDP_SUCCESS if record retrieved, else error
+**
+*******************************************************************************/
+UINT16 SDP_GetDiRecord( UINT8 get_record_index, tSDP_DI_GET_RECORD *p_device_info,
+                        tSDP_DISCOVERY_DB *p_db )
+{
+#if SDP_CLIENT_ENABLED == TRUE
+    UINT16  result = SDP_NO_DI_RECORD_FOUND;
+    UINT8  curr_record_index = 1;
+
+    tSDP_DISC_REC *p_curr_record = NULL;
+
+    /* find the requested SDP record in the discovery database */
+    do
+    {
+        p_curr_record = SDP_FindServiceInDb( p_db, UUID_SERVCLASS_PNP_INFORMATION,
+                                             p_curr_record );
+        if ( p_curr_record )
+        {
+            if ( curr_record_index++ == get_record_index )
+            {
+                result = SDP_SUCCESS;
+                break;
+            }
+        }
+    }while ( p_curr_record );
+
+    if ( result == SDP_SUCCESS )
+    {
+        /* copy the information from the SDP record to the DI record */
+        tSDP_DISC_ATTR *p_curr_attr = NULL;
+
+        /* ClientExecutableURL is optional */
+        p_curr_attr = SDP_FindAttributeInRec( p_curr_record, ATTR_ID_CLIENT_EXE_URL );
+        SDP_AttrStringCopy( p_device_info->rec.client_executable_url, p_curr_attr,
+                            SDP_MAX_ATTR_LEN );
+
+        /* Service Description is optional */
+        p_curr_attr = SDP_FindAttributeInRec( p_curr_record, ATTR_ID_SERVICE_DESCRIPTION );
+        SDP_AttrStringCopy( p_device_info->rec.service_description, p_curr_attr, SDP_MAX_ATTR_LEN );
+
+        /* DocumentationURL is optional */
+        p_curr_attr = SDP_FindAttributeInRec( p_curr_record, ATTR_ID_DOCUMENTATION_URL );
+        SDP_AttrStringCopy( p_device_info->rec.documentation_url, p_curr_attr, SDP_MAX_ATTR_LEN );
+
+        p_curr_attr = SDP_FindAttributeInRec( p_curr_record, ATTR_ID_SPECIFICATION_ID );
+        if ( p_curr_attr )
+            p_device_info->spec_id = p_curr_attr->attr_value.v.u16;
+        else
+            result = SDP_ERR_ATTR_NOT_PRESENT;
+
+        p_curr_attr = SDP_FindAttributeInRec( p_curr_record, ATTR_ID_VENDOR_ID );
+        if ( p_curr_attr )
+            p_device_info->rec.vendor = p_curr_attr->attr_value.v.u16;
+        else
+            result = SDP_ERR_ATTR_NOT_PRESENT;
+
+        p_curr_attr = SDP_FindAttributeInRec( p_curr_record, ATTR_ID_VENDOR_ID_SOURCE );
+        if ( p_curr_attr )
+            p_device_info->rec.vendor_id_source = p_curr_attr->attr_value.v.u16;
+        else
+            result = SDP_ERR_ATTR_NOT_PRESENT;
+
+        p_curr_attr = SDP_FindAttributeInRec( p_curr_record, ATTR_ID_PRODUCT_ID );
+        if ( p_curr_attr )
+            p_device_info->rec.product = p_curr_attr->attr_value.v.u16;
+        else
+            result = SDP_ERR_ATTR_NOT_PRESENT;
+
+        p_curr_attr = SDP_FindAttributeInRec( p_curr_record, ATTR_ID_PRODUCT_VERSION );
+        if ( p_curr_attr )
+            p_device_info->rec.version = p_curr_attr->attr_value.v.u16;
+        else
+            result = SDP_ERR_ATTR_NOT_PRESENT;
+
+        p_curr_attr = SDP_FindAttributeInRec( p_curr_record, ATTR_ID_PRIMARY_RECORD );
+        if ( p_curr_attr )
+            p_device_info->rec.primary_record = (BOOLEAN)p_curr_attr->attr_value.v.u8;
+        else
+            result = SDP_ERR_ATTR_NOT_PRESENT;
+    }
+
+    return result;
+#else   /* SDP_CLIENT_ENABLED is FALSE */
+    return SDP_NO_DI_RECORD_FOUND;
+#endif
+}
+
+/*******************************************************************************
+**                   Device Identification (DI) Server Functions
+*******************************************************************************/
+
+/*******************************************************************************
+**
+** Function         SDP_SetLocalDiRecord
+**
+** Description      This function adds a DI record to the local SDP database.
+**
+**
+**
+** Returns          Returns SDP_SUCCESS if record added successfully, else error
+**
+*******************************************************************************/
+UINT16 SDP_SetLocalDiRecord( tSDP_DI_RECORD *p_device_info, UINT32 *p_handle )
+{
+#if SDP_SERVER_ENABLED == TRUE
+    UINT16  result = SDP_SUCCESS;
+    UINT32  handle;
+    UINT16  di_uuid = UUID_SERVCLASS_PNP_INFORMATION;
+    UINT16  di_specid = BLUETOOTH_DI_SPECIFICATION;
+    UINT8   temp_u16[2];
+    UINT8   *p_temp;
+    UINT8   u8;
+
+    *p_handle = 0;
+    if ( p_device_info == NULL )
+        return SDP_ILLEGAL_PARAMETER;
+
+    /* if record is to be primary record, get handle to replace old primary */
+    if ( p_device_info->primary_record == TRUE && sdp_cb.server_db.di_primary_handle )
+        handle = sdp_cb.server_db.di_primary_handle;
+    else
+    {
+        if ( (handle = SDP_CreateRecord()) == 0 )
+            return SDP_NO_RESOURCES;
+    }
+
+    *p_handle = handle;
+
+    /* build the SDP entry */
+    /* Add the UUID to the Service Class ID List */
+    if ((SDP_AddServiceClassIdList(handle, 1, &di_uuid)) == FALSE)
+        result = SDP_DI_REG_FAILED;
+
+    /* mandatory */
+    if ( result == SDP_SUCCESS)
+    {
+        p_temp = temp_u16;
+        UINT16_TO_BE_STREAM(p_temp, di_specid);
+        if ( !(SDP_AddAttribute(handle, ATTR_ID_SPECIFICATION_ID,
+                                UINT_DESC_TYPE, sizeof(di_specid),
+                                temp_u16)) )
+            result = SDP_DI_REG_FAILED;
+    }
+
+    /* optional - if string is null, do not add attribute */
+    if ( result == SDP_SUCCESS )
+    {
+        if ( p_device_info->client_executable_url[0] != '\0' )
+        {
+            if ( !((strlen(p_device_info->client_executable_url)+1 <= SDP_MAX_ATTR_LEN) &&
+                   SDP_AddAttribute(handle, ATTR_ID_CLIENT_EXE_URL, URL_DESC_TYPE,
+                                    (UINT32)(strlen(p_device_info->client_executable_url)+1),
+                                    (UINT8 *)p_device_info->client_executable_url)) )
+                result = SDP_DI_REG_FAILED;
+        }
+    }
+
+    /* optional - if string is null, do not add attribute */
+    if ( result == SDP_SUCCESS )
+    {
+        if ( p_device_info->service_description[0] != '\0' )
+        {
+            if ( !((strlen(p_device_info->service_description)+1 <= SDP_MAX_ATTR_LEN) &&
+                   SDP_AddAttribute(handle, ATTR_ID_SERVICE_DESCRIPTION,
+                                    TEXT_STR_DESC_TYPE,
+                                    (UINT32)(strlen(p_device_info->service_description)+1),
+                                    (UINT8 *)p_device_info->service_description)) )
+                result = SDP_DI_REG_FAILED;
+        }
+    }
+
+    /* optional - if string is null, do not add attribute */
+    if ( result == SDP_SUCCESS )
+    {
+        if ( p_device_info->documentation_url[0] != '\0' )
+        {
+            if ( !((strlen(p_device_info->documentation_url)+1 <= SDP_MAX_ATTR_LEN) &&
+                   SDP_AddAttribute(handle, ATTR_ID_DOCUMENTATION_URL, URL_DESC_TYPE,
+                                    (UINT32)(strlen(p_device_info->documentation_url)+1),
+                                    (UINT8 *)p_device_info->documentation_url)) )
+                result = SDP_DI_REG_FAILED;
+        }
+    }
+
+    /* mandatory */
+    if ( result == SDP_SUCCESS)
+    {
+        p_temp = temp_u16;
+        UINT16_TO_BE_STREAM(p_temp, p_device_info->vendor);
+        if ( !(SDP_AddAttribute(handle, ATTR_ID_VENDOR_ID, UINT_DESC_TYPE,
+                                sizeof(p_device_info->vendor), temp_u16)) )
+            result = SDP_DI_REG_FAILED;
+    }
+
+    /* mandatory */
+    if ( result == SDP_SUCCESS)
+    {
+        p_temp = temp_u16;
+        UINT16_TO_BE_STREAM (p_temp, p_device_info->product);
+        if ( !(SDP_AddAttribute(handle, ATTR_ID_PRODUCT_ID,
+                                UINT_DESC_TYPE, sizeof(p_device_info->product), temp_u16)) )
+            result = SDP_DI_REG_FAILED;
+    }
+
+    /* mandatory */
+    if ( result == SDP_SUCCESS)
+    {
+        p_temp = temp_u16;
+        UINT16_TO_BE_STREAM (p_temp, p_device_info->version);
+        if ( !(SDP_AddAttribute(handle, ATTR_ID_PRODUCT_VERSION, UINT_DESC_TYPE,
+                                sizeof(p_device_info->version), temp_u16)) )
+            result = SDP_DI_REG_FAILED;
+    }
+
+    /* mandatory */
+    if ( result == SDP_SUCCESS)
+    {
+        u8 = (UINT8)p_device_info->primary_record;
+        if ( !(SDP_AddAttribute(handle, ATTR_ID_PRIMARY_RECORD,
+                                BOOLEAN_DESC_TYPE, 1, &u8)) )
+            result = SDP_DI_REG_FAILED;
+    }
+
+    /* mandatory */
+    if ( result == SDP_SUCCESS)
+    {
+        p_temp = temp_u16;
+        UINT16_TO_BE_STREAM(p_temp, p_device_info->vendor_id_source);
+        if ( !(SDP_AddAttribute(handle, ATTR_ID_VENDOR_ID_SOURCE, UINT_DESC_TYPE,
+                                sizeof(p_device_info->vendor_id_source), temp_u16)) )
+            result = SDP_DI_REG_FAILED;
+    }
+
+    if ( result != SDP_SUCCESS )
+        SDP_DeleteRecord( handle );
+    else if (p_device_info->primary_record == TRUE)
+        sdp_cb.server_db.di_primary_handle = handle;
+
+    return result;
+#else   /* SDP_SERVER_ENABLED is FALSE */
+    return SDP_DI_REG_FAILED;
+#endif  /* if SDP_SERVER_ENABLED */
+}
+
+/*******************************************************************************
+**
+** Function         SDP_SetTraceLevel
+**
+** Description      This function sets the trace level for SDP. If called with
+**                  a value of 0xFF, it simply reads the current trace level.
+**
+** Returns          the new (current) trace level
+**
+*******************************************************************************/
+UINT8 SDP_SetTraceLevel (UINT8 new_level)
+{
+    if (new_level != 0xFF)
+        sdp_cb.trace_level = new_level;
+
+    return(sdp_cb.trace_level);
+}
diff --git a/rtkbt/code/bt/stack/sdp/sdp_db.c b/rtkbt/code/bt/stack/sdp/sdp_db.c
new file mode 100755
index 0000000..8546536
--- /dev/null
+++ b/rtkbt/code/bt/stack/sdp/sdp_db.c
@@ -0,0 +1,980 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  this file contains functions that handle the database
+ *
+ ******************************************************************************/
+
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+
+#include "bt_target.h"
+
+#include "bt_common.h"
+
+#include "l2cdefs.h"
+#include "hcidefs.h"
+#include "hcimsgs.h"
+
+#include "sdp_api.h"
+#include "sdpint.h"
+
+#if SDP_SERVER_ENABLED == TRUE
+/********************************************************************************/
+/*              L O C A L    F U N C T I O N     P R O T O T Y P E S            */
+/********************************************************************************/
+static BOOLEAN find_uuid_in_seq (UINT8 *p , UINT32 seq_len, UINT8 *p_his_uuid,
+                                 UINT16 his_len, int nest_level);
+
+
+/*******************************************************************************
+**
+** Function         sdp_db_service_search
+**
+** Description      This function searches for a record that contains the
+**                  specified UIDs. It is passed either NULL to start at the
+**                  beginning, or the previous record found.
+**
+** Returns          Pointer to the record, or NULL if not found.
+**
+*******************************************************************************/
+tSDP_RECORD *sdp_db_service_search (tSDP_RECORD *p_rec, tSDP_UUID_SEQ *p_seq)
+{
+    UINT16          xx, yy;
+    tSDP_ATTRIBUTE *p_attr;
+    tSDP_RECORD     *p_end = &sdp_cb.server_db.record[sdp_cb.server_db.num_records];
+
+    /* If NULL, start at the beginning, else start at the first specified record */
+    if (!p_rec)
+        p_rec = &sdp_cb.server_db.record[0];
+    else
+        p_rec++;
+
+    /* Look through the records. The spec says that a match occurs if */
+    /* the record contains all the passed UUIDs in it.                */
+    for ( ; p_rec < p_end; p_rec++)
+    {
+        for (yy = 0; yy < p_seq->num_uids; yy++)
+        {
+            p_attr = &p_rec->attribute[0];
+            for (xx = 0; xx < p_rec->num_attributes; xx++, p_attr++)
+            {
+                if (p_attr->type == UUID_DESC_TYPE)
+                {
+                    if (sdpu_compare_uuid_arrays (p_attr->value_ptr, p_attr->len,
+                                                  &p_seq->uuid_entry[yy].value[0],
+                                                  p_seq->uuid_entry[yy].len))
+                        break;
+                }
+                else if (p_attr->type == DATA_ELE_SEQ_DESC_TYPE)
+                {
+                    if (find_uuid_in_seq (p_attr->value_ptr, p_attr->len,
+                                          &p_seq->uuid_entry[yy].value[0],
+                                          p_seq->uuid_entry[yy].len, 0))
+                        break;
+                }
+            }
+            /* If any UUID was not found,  on to the next record */
+            if (xx == p_rec->num_attributes)
+                break;
+        }
+
+        /* If every UUID was found in the record, return the record */
+        if (yy == p_seq->num_uids)
+            return (p_rec);
+    }
+
+    /* If here, no more records found */
+    return (NULL);
+}
+
+/*******************************************************************************
+**
+** Function         find_uuid_in_seq
+**
+** Description      This function searches a data element sequenct for a UUID.
+**
+** Returns          TRUE if found, else FALSE
+**
+*******************************************************************************/
+static BOOLEAN find_uuid_in_seq (UINT8 *p , UINT32 seq_len, UINT8 *p_uuid,
+                                 UINT16 uuid_len, int nest_level)
+{
+    UINT8   *p_end = p + seq_len;
+    UINT8   type;
+    UINT32  len;
+
+    /* A little safety check to avoid excessive recursion */
+    if (nest_level > 3)
+        return (FALSE);
+
+    while (p < p_end)
+    {
+        type = *p++;
+        p = sdpu_get_len_from_type (p, type, &len);
+        type = type >> 3;
+        if (type == UUID_DESC_TYPE)
+        {
+            if (sdpu_compare_uuid_arrays (p, len, p_uuid, uuid_len))
+                return (TRUE);
+        }
+        else if (type == DATA_ELE_SEQ_DESC_TYPE)
+        {
+            if (find_uuid_in_seq (p, len, p_uuid, uuid_len, nest_level + 1))
+                return (TRUE);
+        }
+        p = p + len;
+    }
+
+    /* If here, failed to match */
+    return (FALSE);
+}
+
+/*******************************************************************************
+**
+** Function         sdp_db_find_record
+**
+** Description      This function searches for a record with a specific handle
+**                  It is passed the handle of the record.
+**
+** Returns          Pointer to the record, or NULL if not found.
+**
+*******************************************************************************/
+tSDP_RECORD *sdp_db_find_record (UINT32 handle)
+{
+    tSDP_RECORD     *p_rec;
+    tSDP_RECORD     *p_end = &sdp_cb.server_db.record[sdp_cb.server_db.num_records];
+
+    /* Look through the records for the caller's handle */
+    for (p_rec = &sdp_cb.server_db.record[0]; p_rec < p_end; p_rec++)
+    {
+        if (p_rec->record_handle == handle)
+            return (p_rec);
+    }
+
+    /* Record with that handle not found. */
+    return (NULL);
+}
+
+/*******************************************************************************
+**
+** Function         sdp_db_find_attr_in_rec
+**
+** Description      This function searches a record for specific attributes.
+**                  It is passed a pointer to the record. If the record contains
+**                  the specified attribute, (the caller may specify be a range
+**                  of attributes), the attribute is returned.
+**
+** Returns          Pointer to the attribute, or NULL if not found.
+**
+*******************************************************************************/
+tSDP_ATTRIBUTE *sdp_db_find_attr_in_rec (tSDP_RECORD *p_rec, UINT16 start_attr,
+                                         UINT16 end_attr)
+{
+    tSDP_ATTRIBUTE  *p_at;
+    UINT16          xx;
+
+    /* Note that the attributes in a record are assumed to be in sorted order */
+    for (xx = 0, p_at = &p_rec->attribute[0]; xx < p_rec->num_attributes;
+         xx++, p_at++)
+    {
+        if ((p_at->id >= start_attr) && (p_at->id <= end_attr))
+            return (p_at);
+    }
+
+    /* No matching attribute found */
+    return (NULL);
+}
+
+
+/*******************************************************************************
+**
+** Function         sdp_compose_proto_list
+**
+** Description      This function is called to compose a data sequence from
+**                  protocol element list struct pointer
+**
+** Returns          the length of the data sequence
+**
+*******************************************************************************/
+static int sdp_compose_proto_list( UINT8 *p, UINT16 num_elem,
+                                  tSDP_PROTOCOL_ELEM *p_elem_list)
+{
+    UINT16          xx, yy, len;
+    BOOLEAN            is_rfcomm_scn;
+    UINT8           *p_head = p;
+    UINT8            *p_len;
+
+    /* First, build the protocol list. This consists of a set of data element
+    ** sequences, one for each layer. Each layer sequence consists of layer's
+    ** UUID and optional parameters
+    */
+    for (xx = 0; xx < num_elem; xx++, p_elem_list++)
+    {
+        len = 3 + (p_elem_list->num_params * 3);
+        UINT8_TO_BE_STREAM  (p, (DATA_ELE_SEQ_DESC_TYPE << 3) | SIZE_IN_NEXT_BYTE);
+
+        p_len = p;
+        *p++ = (UINT8) len;
+
+        UINT8_TO_BE_STREAM  (p, (UUID_DESC_TYPE << 3) | SIZE_TWO_BYTES);
+        UINT16_TO_BE_STREAM (p, p_elem_list->protocol_uuid);
+
+        if (p_elem_list->protocol_uuid == UUID_PROTOCOL_RFCOMM)
+            is_rfcomm_scn = TRUE;
+        else
+            is_rfcomm_scn = FALSE;
+
+        for (yy = 0; yy < p_elem_list->num_params; yy++)
+        {
+            if (is_rfcomm_scn)
+            {
+                UINT8_TO_BE_STREAM  (p, (UINT_DESC_TYPE << 3) | SIZE_ONE_BYTE);
+                UINT8_TO_BE_STREAM (p, p_elem_list->params[yy]);
+
+                *p_len -= 1;
+            }
+            else
+            {
+                UINT8_TO_BE_STREAM  (p, (UINT_DESC_TYPE << 3) | SIZE_TWO_BYTES);
+                UINT16_TO_BE_STREAM (p, p_elem_list->params[yy]);
+            }
+        }
+    }
+    return (p - p_head);
+}
+
+#endif  /* SDP_SERVER_ENABLED == TRUE */
+
+/*******************************************************************************
+**
+** Function         SDP_CreateRecord
+**
+** Description      This function is called to create a record in the database.
+**                  This would be through the SDP database maintenance API. The
+**                  record is created empty, teh application should then call
+**                  "add_attribute" to add the record's attributes.
+**
+** Returns          Record handle if OK, else 0.
+**
+*******************************************************************************/
+UINT32 SDP_CreateRecord (void)
+{
+#if SDP_SERVER_ENABLED == TRUE
+    UINT32    handle;
+    UINT8     buf[4];
+    tSDP_DB  *p_db = &sdp_cb.server_db;
+
+    /* First, check if there is a free record */
+    if (p_db->num_records < SDP_MAX_RECORDS)
+    {
+        memset (&p_db->record[p_db->num_records], 0,
+                sizeof (tSDP_RECORD));
+
+        /* We will use a handle of the first unreserved handle plus last record
+        ** number + 1 */
+        if (p_db->num_records)
+            handle = p_db->record[p_db->num_records - 1].record_handle + 1;
+        else
+            handle = 0x10000;
+
+        p_db->record[p_db->num_records].record_handle = handle;
+
+        p_db->num_records++;
+        SDP_TRACE_DEBUG("SDP_CreateRecord ok, num_records:%d", p_db->num_records);
+        /* Add the first attribute (the handle) automatically */
+        UINT32_TO_BE_FIELD (buf, handle);
+        SDP_AddAttribute (handle, ATTR_ID_SERVICE_RECORD_HDL, UINT_DESC_TYPE,
+                          4, buf);
+
+        return (p_db->record[p_db->num_records - 1].record_handle);
+    }
+    else SDP_TRACE_ERROR("SDP_CreateRecord fail, exceed maximum records:%d", SDP_MAX_RECORDS);
+#endif
+        return (0);
+}
+
+
+/*******************************************************************************
+**
+** Function         SDP_DeleteRecord
+**
+** Description      This function is called to add a record (or all records)
+**                  from the database. This would be through the SDP database
+**                  maintenance API.
+**
+**                  If a record handle of 0 is passed, all records are deleted.
+**
+** Returns          TRUE if succeeded, else FALSE
+**
+*******************************************************************************/
+BOOLEAN SDP_DeleteRecord (UINT32 handle)
+{
+#if SDP_SERVER_ENABLED == TRUE
+    UINT16          xx, yy, zz;
+    tSDP_RECORD     *p_rec = &sdp_cb.server_db.record[0];
+
+    if (handle == 0 || sdp_cb.server_db.num_records == 0)
+    {
+        /* Delete all records in the database */
+        sdp_cb.server_db.num_records = 0;
+
+        /* require new DI record to be created in SDP_SetLocalDiRecord */
+        sdp_cb.server_db.di_primary_handle = 0;
+
+        return (TRUE);
+    }
+    else
+    {
+        /* Find the record in the database */
+        for (xx = 0; xx < sdp_cb.server_db.num_records; xx++, p_rec++)
+        {
+            if (p_rec->record_handle == handle)
+            {
+                /* Found it. Shift everything up one */
+                for (yy = xx; yy < sdp_cb.server_db.num_records; yy++, p_rec++)
+                {
+                    *p_rec = *(p_rec + 1);
+
+                    /* Adjust the attribute value pointer for each attribute */
+                    for (zz = 0; zz < p_rec->num_attributes; zz++)
+                        p_rec->attribute[zz].value_ptr -= sizeof(tSDP_RECORD);
+                }
+
+                sdp_cb.server_db.num_records--;
+
+                SDP_TRACE_DEBUG("SDP_DeleteRecord ok, num_records:%d", sdp_cb.server_db.num_records);
+                /* if we're deleting the primary DI record, clear the */
+                /* value in the control block */
+                if( sdp_cb.server_db.di_primary_handle == handle )
+                {
+                    sdp_cb.server_db.di_primary_handle = 0;
+                }
+
+                return (TRUE);
+            }
+        }
+    }
+#endif
+    return (FALSE);
+}
+
+
+/*******************************************************************************
+**
+** Function         SDP_AddAttribute
+**
+** Description      This function is called to add an attribute to a record.
+**                  This would be through the SDP database maintenance API.
+**                  If the attribute already exists in the record, it is replaced
+**                  with the new value.
+**
+** NOTE             Attribute values must be passed as a Big Endian stream.
+**
+** Returns          TRUE if added OK, else FALSE
+**
+*******************************************************************************/
+BOOLEAN SDP_AddAttribute (UINT32 handle, UINT16 attr_id, UINT8 attr_type,
+                          UINT32 attr_len, UINT8 *p_val)
+{
+#if SDP_SERVER_ENABLED == TRUE
+    UINT16          xx, yy, zz;
+    tSDP_RECORD     *p_rec = &sdp_cb.server_db.record[0];
+
+#if (BT_TRACE_VERBOSE == TRUE)
+    if (sdp_cb.trace_level >= BT_TRACE_LEVEL_DEBUG)
+    {
+        if ((attr_type == UINT_DESC_TYPE) ||
+            (attr_type == TWO_COMP_INT_DESC_TYPE) ||
+            (attr_type == UUID_DESC_TYPE) ||
+            (attr_type == DATA_ELE_SEQ_DESC_TYPE) ||
+            (attr_type == DATA_ELE_ALT_DESC_TYPE))
+        {
+            UINT8 num_array[400];
+            UINT32 i;
+            UINT32 len = (attr_len > 200) ? 200 : attr_len;
+
+            num_array[0] ='\0';
+            for (i = 0; i < len; i++)
+            {
+                sprintf((char *)&num_array[i*2],"%02X",(UINT8)(p_val[i]));
+            }
+            SDP_TRACE_DEBUG("SDP_AddAttribute: handle:%X, id:%04X, type:%d, len:%d, p_val:%p, *p_val:%s",
+                            handle,attr_id,attr_type,attr_len,p_val,num_array);
+        }
+        else if (attr_type == BOOLEAN_DESC_TYPE)
+        {
+            SDP_TRACE_DEBUG("SDP_AddAttribute: handle:%X, id:%04X, type:%d, len:%d, p_val:%p, *p_val:%d",
+                             handle,attr_id,attr_type,attr_len,p_val,*p_val);
+        }
+        else
+        {
+            SDP_TRACE_DEBUG("SDP_AddAttribute: handle:%X, id:%04X, type:%d, len:%d, p_val:%p, *p_val:%s",
+                handle,attr_id,attr_type,attr_len,p_val,p_val);
+        }
+    }
+#endif
+
+    /* Find the record in the database */
+    for (zz = 0; zz < sdp_cb.server_db.num_records; zz++, p_rec++)
+    {
+        if (p_rec->record_handle == handle)
+        {
+            tSDP_ATTRIBUTE  *p_attr = &p_rec->attribute[0];
+
+            /* Found the record. Now, see if the attribute already exists */
+            for (xx = 0; xx < p_rec->num_attributes; xx++, p_attr++)
+            {
+                /* The attribute exists. replace it */
+                if (p_attr->id == attr_id)
+                {
+                    SDP_DeleteAttribute (handle, attr_id);
+                    break;
+                }
+                if (p_attr->id > attr_id)
+                    break;
+            }
+
+            if (p_rec->num_attributes == SDP_MAX_REC_ATTR)
+                return (FALSE);
+
+            /* If not found, see if we can allocate a new entry */
+            if (xx == p_rec->num_attributes)
+                p_attr = &p_rec->attribute[p_rec->num_attributes];
+            else
+            {
+                /* Since the attributes are kept in sorted order, insert ours here */
+                for (yy = p_rec->num_attributes; yy > xx; yy--)
+                    p_rec->attribute[yy] = p_rec->attribute[yy - 1];
+            }
+
+            p_attr->id   = attr_id;
+            p_attr->type = attr_type;
+            p_attr->len  = attr_len;
+
+            if (p_rec->free_pad_ptr + attr_len >= SDP_MAX_PAD_LEN)
+            {
+                /* do truncate only for text string type descriptor */
+                if (attr_type == TEXT_STR_DESC_TYPE)
+                {
+                    SDP_TRACE_WARNING("SDP_AddAttribute: attr_len:%d too long. truncate to (%d)",
+                        attr_len, SDP_MAX_PAD_LEN - p_rec->free_pad_ptr );
+
+                    attr_len = SDP_MAX_PAD_LEN - p_rec->free_pad_ptr;
+                    p_val[SDP_MAX_PAD_LEN - p_rec->free_pad_ptr] = '\0';
+                    p_val[SDP_MAX_PAD_LEN - p_rec->free_pad_ptr+1] = '\0';
+                }
+                else
+                    attr_len = 0;
+            }
+
+            if ((attr_len > 0) && (p_val != 0))
+            {
+                p_attr->len  = attr_len;
+                memcpy (&p_rec->attr_pad[p_rec->free_pad_ptr], p_val, (size_t)attr_len);
+                p_attr->value_ptr = &p_rec->attr_pad[p_rec->free_pad_ptr];
+                p_rec->free_pad_ptr += attr_len;
+            }
+            else if ((attr_len == 0 && p_attr->len != 0) || /* if truncate to 0 length, simply don't add */
+                      p_val == 0)
+            {
+                SDP_TRACE_ERROR("SDP_AddAttribute fail, length exceed maximum: ID %d: attr_len:%d ",
+                    attr_id, attr_len );
+                p_attr->id   = p_attr->type = p_attr->len  = 0;
+                return (FALSE);
+            }
+            p_rec->num_attributes++;
+            return (TRUE);
+        }
+    }
+#endif
+    return (FALSE);
+}
+
+
+/*******************************************************************************
+**
+** Function         SDP_AddSequence
+**
+** Description      This function is called to add a sequence to a record.
+**                  This would be through the SDP database maintenance API.
+**                  If the sequence already exists in the record, it is replaced
+**                  with the new sequence.
+**
+** NOTE             Element values must be passed as a Big Endian stream.
+**
+** Returns          TRUE if added OK, else FALSE
+**
+*******************************************************************************/
+BOOLEAN SDP_AddSequence (UINT32 handle,  UINT16 attr_id, UINT16 num_elem,
+                         UINT8 type[], UINT8 len[], UINT8 *p_val[])
+{
+#if SDP_SERVER_ENABLED == TRUE
+    UINT16 xx;
+    UINT8 *p;
+    UINT8 *p_head;
+    BOOLEAN result;
+    UINT8 *p_buff = (UINT8 *)osi_malloc(sizeof(UINT8) * SDP_MAX_ATTR_LEN * 2);
+
+    p = p_buff;
+
+    /* First, build the sequence */
+    for (xx = 0; xx < num_elem; xx++)
+    {
+        p_head = p;
+        switch (len[xx])
+        {
+        case 1:
+            UINT8_TO_BE_STREAM (p, (type[xx] << 3) | SIZE_ONE_BYTE);
+            break;
+        case 2:
+            UINT8_TO_BE_STREAM  (p, (type[xx] << 3) | SIZE_TWO_BYTES);
+            break;
+        case 4:
+            UINT8_TO_BE_STREAM  (p, (type[xx] << 3) | SIZE_FOUR_BYTES);
+            break;
+        case 8:
+            UINT8_TO_BE_STREAM  (p, (type[xx] << 3) | SIZE_EIGHT_BYTES);
+            break;
+        case 16:
+            UINT8_TO_BE_STREAM  (p, (type[xx] << 3) | SIZE_SIXTEEN_BYTES);
+            break;
+        default:
+            UINT8_TO_BE_STREAM (p, (type[xx] << 3) | SIZE_IN_NEXT_BYTE);
+            UINT8_TO_BE_STREAM (p, len[xx]);
+            break;
+        }
+
+        ARRAY_TO_BE_STREAM (p, p_val[xx], len[xx]);
+
+        if (p - p_buff > SDP_MAX_ATTR_LEN)
+        {
+            /* go back to before we add this element */
+            p = p_head;
+            if(p_head == p_buff)
+            {
+                /* the first element exceed the max length */
+                SDP_TRACE_ERROR ("SDP_AddSequence - too long(attribute is not added)!!");
+                osi_free(p_buff);
+                return FALSE;
+            }
+            else
+                SDP_TRACE_ERROR ("SDP_AddSequence - too long, add %d elements of %d", xx, num_elem);
+            break;
+        }
+    }
+    result = SDP_AddAttribute (handle, attr_id, DATA_ELE_SEQ_DESC_TYPE,(UINT32) (p - p_buff), p_buff);
+    osi_free(p_buff);
+    return result;
+#else   /* SDP_SERVER_ENABLED == FALSE */
+    return (FALSE);
+#endif
+}
+
+
+/*******************************************************************************
+**
+** Function         SDP_AddUuidSequence
+**
+** Description      This function is called to add a UUID sequence to a record.
+**                  This would be through the SDP database maintenance API.
+**                  If the sequence already exists in the record, it is replaced
+**                  with the new sequence.
+**
+** Returns          TRUE if added OK, else FALSE
+**
+*******************************************************************************/
+BOOLEAN SDP_AddUuidSequence (UINT32 handle,  UINT16 attr_id, UINT16 num_uuids,
+                             UINT16 *p_uuids)
+{
+#if SDP_SERVER_ENABLED == TRUE
+    UINT16 xx;
+    UINT8 *p;
+    INT32 max_len = SDP_MAX_ATTR_LEN -3;
+    BOOLEAN result;
+    UINT8 *p_buff = (UINT8 *)osi_malloc(sizeof(UINT8) * SDP_MAX_ATTR_LEN * 2);
+
+    p = p_buff;
+
+    /* First, build the sequence */
+    for (xx = 0; xx < num_uuids ; xx++, p_uuids++)
+    {
+        UINT8_TO_BE_STREAM  (p, (UUID_DESC_TYPE << 3) | SIZE_TWO_BYTES);
+        UINT16_TO_BE_STREAM (p, *p_uuids);
+
+        if((p - p_buff) > max_len)
+        {
+            SDP_TRACE_WARNING ("SDP_AddUuidSequence - too long, add %d uuids of %d", xx, num_uuids);
+            break;
+        }
+    }
+
+    result = SDP_AddAttribute (handle, attr_id, DATA_ELE_SEQ_DESC_TYPE,(UINT32) (p - p_buff), p_buff);
+    osi_free(p_buff);
+    return result;
+#else   /* SDP_SERVER_ENABLED == FALSE */
+    return (FALSE);
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         SDP_AddProtocolList
+**
+** Description      This function is called to add a protocol descriptor list to
+**                  a record. This would be through the SDP database maintenance API.
+**                  If the protocol list already exists in the record, it is replaced
+**                  with the new list.
+**
+** Returns          TRUE if added OK, else FALSE
+**
+*******************************************************************************/
+BOOLEAN SDP_AddProtocolList (UINT32 handle, UINT16 num_elem,
+                             tSDP_PROTOCOL_ELEM *p_elem_list)
+{
+#if SDP_SERVER_ENABLED == TRUE
+    int offset;
+    BOOLEAN result;
+    UINT8 *p_buff = (UINT8 *)osi_malloc(sizeof(UINT8) * SDP_MAX_ATTR_LEN * 2);
+
+    offset = sdp_compose_proto_list(p_buff, num_elem, p_elem_list);
+    result = SDP_AddAttribute (handle, ATTR_ID_PROTOCOL_DESC_LIST,DATA_ELE_SEQ_DESC_TYPE, (UINT32) offset, p_buff);
+    osi_free(p_buff);
+    return result;
+#else   /* SDP_SERVER_ENABLED == FALSE */
+    return (FALSE);
+#endif
+}
+
+
+/*******************************************************************************
+**
+** Function         SDP_AddAdditionProtoLists
+**
+** Description      This function is called to add a protocol descriptor list to
+**                  a record. This would be through the SDP database maintenance API.
+**                  If the protocol list already exists in the record, it is replaced
+**                  with the new list.
+**
+** Returns          TRUE if added OK, else FALSE
+**
+*******************************************************************************/
+BOOLEAN SDP_AddAdditionProtoLists (UINT32 handle, UINT16 num_elem,
+                                   tSDP_PROTO_LIST_ELEM *p_proto_list)
+{
+#if SDP_SERVER_ENABLED == TRUE
+    UINT16 xx;
+    UINT8 *p;
+    UINT8 *p_len;
+    int offset;
+    BOOLEAN result;
+    UINT8 *p_buff = (UINT8 *)osi_malloc(sizeof(UINT8) * SDP_MAX_ATTR_LEN * 2);
+
+    p = p_buff;
+
+    /* for each ProtocolDescriptorList */
+    for (xx = 0; xx < num_elem; xx++, p_proto_list++)
+    {
+        UINT8_TO_BE_STREAM  (p, (DATA_ELE_SEQ_DESC_TYPE << 3) | SIZE_IN_NEXT_BYTE);
+        p_len = p++;
+
+        offset = sdp_compose_proto_list(p, p_proto_list->num_elems,
+                                        p_proto_list->list_elem);
+        p += offset;
+
+        *p_len  = (UINT8)(p - p_len - 1);
+    }
+    result = SDP_AddAttribute (handle, ATTR_ID_ADDITION_PROTO_DESC_LISTS,DATA_ELE_SEQ_DESC_TYPE,
+	                           (UINT32) (p - p_buff), p_buff);
+    osi_free(p_buff);
+    return result;
+
+#else   /* SDP_SERVER_ENABLED == FALSE */
+    return (FALSE);
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         SDP_AddProfileDescriptorList
+**
+** Description      This function is called to add a profile descriptor list to
+**                  a record. This would be through the SDP database maintenance API.
+**                  If the version already exists in the record, it is replaced
+**                  with the new one.
+**
+** Returns          TRUE if added OK, else FALSE
+**
+*******************************************************************************/
+BOOLEAN SDP_AddProfileDescriptorList (UINT32 handle, UINT16 profile_uuid,
+                                      UINT16 version)
+{
+#if SDP_SERVER_ENABLED == TRUE
+    UINT8 *p;
+    BOOLEAN result;
+    UINT8 *p_buff = (UINT8 *)osi_malloc(sizeof(UINT8) * SDP_MAX_ATTR_LEN);
+
+    p = p_buff + 2;
+
+    /* First, build the profile descriptor list. This consists of a data element sequence. */
+    /* The sequence consists of profile's UUID and version number  */
+    UINT8_TO_BE_STREAM  (p, (UUID_DESC_TYPE << 3) | SIZE_TWO_BYTES);
+    UINT16_TO_BE_STREAM (p, profile_uuid);
+
+    UINT8_TO_BE_STREAM  (p, (UINT_DESC_TYPE << 3) | SIZE_TWO_BYTES);
+    UINT16_TO_BE_STREAM (p, version);
+
+    /* Add in type and length fields */
+    *p_buff = (UINT8) ((DATA_ELE_SEQ_DESC_TYPE << 3) | SIZE_IN_NEXT_BYTE);
+    *(p_buff+1) = (UINT8) (p - (p_buff+2));
+
+    result = SDP_AddAttribute (handle, ATTR_ID_BT_PROFILE_DESC_LIST,DATA_ELE_SEQ_DESC_TYPE, (UINT32) (p - p_buff), p_buff);
+    osi_free(p_buff);
+    return result;
+
+#else   /* SDP_SERVER_ENABLED == FALSE */
+    return (FALSE);
+#endif
+}
+
+
+/*******************************************************************************
+**
+** Function         SDP_AddLanguageBaseAttrIDList
+**
+** Description      This function is called to add a language base attr list to
+**                  a record. This would be through the SDP database maintenance API.
+**                  If the version already exists in the record, it is replaced
+**                  with the new one.
+**
+** Returns          TRUE if added OK, else FALSE
+**
+*******************************************************************************/
+BOOLEAN SDP_AddLanguageBaseAttrIDList (UINT32 handle, UINT16 lang,
+                                       UINT16 char_enc, UINT16 base_id)
+{
+#if SDP_SERVER_ENABLED == TRUE
+    UINT8 *p;
+    BOOLEAN result;
+    UINT8 *p_buff = (UINT8 *) osi_malloc(sizeof(UINT8) * SDP_MAX_ATTR_LEN);
+
+    p = p_buff;
+
+    /* First, build the language base descriptor list. This consists of a data */
+    /* element sequence. The sequence consists of 9 bytes (3 UINt16 fields)    */
+    UINT8_TO_BE_STREAM  (p, (UINT_DESC_TYPE << 3) | SIZE_TWO_BYTES);
+    UINT16_TO_BE_STREAM (p, lang);
+
+    UINT8_TO_BE_STREAM  (p, (UINT_DESC_TYPE << 3) | SIZE_TWO_BYTES);
+    UINT16_TO_BE_STREAM (p, char_enc);
+
+    UINT8_TO_BE_STREAM  (p, (UINT_DESC_TYPE << 3) | SIZE_TWO_BYTES);
+    UINT16_TO_BE_STREAM (p, base_id);
+
+    result = SDP_AddAttribute (handle, ATTR_ID_LANGUAGE_BASE_ATTR_ID_LIST,DATA_ELE_SEQ_DESC_TYPE,
+	                           (UINT32) (p - p_buff), p_buff);
+    osi_free(p_buff);
+    return result;
+#else   /* SDP_SERVER_ENABLED == FALSE */
+    return (FALSE);
+#endif
+}
+
+
+/*******************************************************************************
+**
+** Function         SDP_AddServiceClassIdList
+**
+** Description      This function is called to add a service list to a record.
+**                  This would be through the SDP database maintenance API.
+**                  If the service list already exists in the record, it is replaced
+**                  with the new list.
+**
+** Returns          TRUE if added OK, else FALSE
+**
+*******************************************************************************/
+BOOLEAN SDP_AddServiceClassIdList (UINT32 handle, UINT16 num_services,
+                                   UINT16 *p_service_uuids)
+{
+#if SDP_SERVER_ENABLED == TRUE
+    UINT16 xx;
+    UINT8 *p;
+    BOOLEAN result;
+    UINT8 *p_buff = (UINT8 *) osi_malloc(sizeof(UINT8) * SDP_MAX_ATTR_LEN * 2);
+
+    p = p_buff;
+
+    for (xx = 0; xx < num_services; xx++, p_service_uuids++)
+    {
+        UINT8_TO_BE_STREAM  (p, (UUID_DESC_TYPE << 3) | SIZE_TWO_BYTES);
+        UINT16_TO_BE_STREAM (p, *p_service_uuids);
+    }
+
+    result = SDP_AddAttribute (handle, ATTR_ID_SERVICE_CLASS_ID_LIST,DATA_ELE_SEQ_DESC_TYPE,
+	                           (UINT32) (p - p_buff), p_buff);
+    osi_free(p_buff);
+    return result;
+#else   /* SDP_SERVER_ENABLED == FALSE */
+    return (FALSE);
+#endif
+}
+
+
+/*******************************************************************************
+**
+** Function         SDP_DeleteAttribute
+**
+** Description      This function is called to delete an attribute from a record.
+**                  This would be through the SDP database maintenance API.
+**
+** Returns          TRUE if deleted OK, else FALSE if not found
+**
+*******************************************************************************/
+BOOLEAN SDP_DeleteAttribute (UINT32 handle, UINT16 attr_id)
+{
+#if SDP_SERVER_ENABLED == TRUE
+    UINT16          xx, yy;
+    tSDP_RECORD     *p_rec = &sdp_cb.server_db.record[0];
+    UINT8           *pad_ptr;
+    UINT32  len;                        /* Number of bytes in the entry */
+
+    /* Find the record in the database */
+    for (xx = 0; xx < sdp_cb.server_db.num_records; xx++, p_rec++)
+    {
+        if (p_rec->record_handle == handle)
+        {
+            tSDP_ATTRIBUTE  *p_attr = &p_rec->attribute[0];
+
+            SDP_TRACE_API("Deleting attr_id 0x%04x for handle 0x%x", attr_id, handle);
+            /* Found it. Now, find the attribute */
+            for (xx = 0; xx < p_rec->num_attributes; xx++, p_attr++)
+            {
+                if (p_attr->id == attr_id)
+                {
+                    pad_ptr = p_attr->value_ptr;
+                    len = p_attr->len;
+
+                    if (len)
+                    {
+                        for (yy = 0; yy < p_rec->num_attributes; yy++)
+                        {
+                            if( p_rec->attribute[yy].value_ptr > pad_ptr )
+                                p_rec->attribute[yy].value_ptr -= len;
+                        }
+                    }
+
+                    /* Found it. Shift everything up one */
+                    p_rec->num_attributes--;
+
+                    for (yy = xx; yy < p_rec->num_attributes; yy++, p_attr++)
+                    {
+                        *p_attr = *(p_attr + 1);
+                    }
+
+                    /* adjust attribute values if needed */
+                    if (len)
+                    {
+                        xx = (p_rec->free_pad_ptr - ((pad_ptr+len) -
+                                                  &p_rec->attr_pad[0]));
+                        for( yy=0; yy<xx; yy++, pad_ptr++)
+                            *pad_ptr = *(pad_ptr+len);
+                        p_rec->free_pad_ptr -= len;
+                    }
+                    return (TRUE);
+                }
+            }
+        }
+    }
+#endif
+    /* If here, not found */
+    return (FALSE);
+}
+
+/*******************************************************************************
+**
+** Function         SDP_ReadRecord
+**
+** Description      This function is called to get the raw data of the record
+**                  with the given handle from the database.
+**
+** Returns          -1, if the record is not found.
+**                  Otherwise, the offset (0 or 1) to start of data in p_data.
+**
+**                  The size of data copied into p_data is in *p_data_len.
+**
+*******************************************************************************/
+#if (SDP_RAW_DATA_INCLUDED == TRUE)
+INT32 SDP_ReadRecord(UINT32 handle, UINT8 *p_data, INT32 *p_data_len)
+{
+    INT32           len = 0;                        /* Number of bytes in the entry */
+    INT32           offset = -1; /* default to not found */
+#if SDP_SERVER_ENABLED == TRUE
+    tSDP_RECORD     *p_rec;
+    UINT16          start = 0;
+    UINT16          end = 0xffff;
+    tSDP_ATTRIBUTE  *p_attr;
+    UINT16          rem_len;
+    UINT8           *p_rsp;
+
+    /* Find the record in the database */
+    p_rec = sdp_db_find_record(handle);
+    if(p_rec && p_data && p_data_len)
+    {
+        p_rsp = &p_data[3];
+        while ( (p_attr = sdp_db_find_attr_in_rec (p_rec, start, end)) != NULL)
+        {
+            /* Check if attribute fits. Assume 3-byte value type/length */
+            rem_len = *p_data_len - (UINT16) (p_rsp - p_data);
+
+            if (p_attr->len > (UINT32)(rem_len - 6))
+                break;
+
+            p_rsp = sdpu_build_attrib_entry (p_rsp, p_attr);
+
+            /* next attr id */
+            start = p_attr->id + 1;
+        }
+        len = (INT32) (p_rsp - p_data);
+
+        /* Put in the sequence header (2 or 3 bytes) */
+        if (len > 255)
+        {
+            offset = 0;
+            p_data[0] = (UINT8) ((DATA_ELE_SEQ_DESC_TYPE << 3) | SIZE_IN_NEXT_WORD);
+            p_data[1] = (UINT8) ((len - 3) >> 8);
+            p_data[2] = (UINT8) (len - 3);
+        }
+        else
+        {
+            offset = 1;
+
+            p_data[1] = (UINT8) ((DATA_ELE_SEQ_DESC_TYPE << 3) | SIZE_IN_NEXT_BYTE);
+            p_data[2] = (UINT8) (len - 3);
+
+            len--;
+        }
+        *p_data_len = len;
+    }
+#endif
+    /* If here, not found */
+    return (offset);
+}
+#endif
diff --git a/rtkbt/code/bt/stack/sdp/sdp_discovery.c b/rtkbt/code/bt/stack/sdp/sdp_discovery.c
new file mode 100755
index 0000000..a610e22
--- /dev/null
+++ b/rtkbt/code/bt/stack/sdp/sdp_discovery.c
@@ -0,0 +1,1064 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  this file contains SDP discovery functions
+ *
+ ******************************************************************************/
+
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+
+#include "bt_target.h"
+#include "bt_common.h"
+#include "l2cdefs.h"
+#include "hcidefs.h"
+#include "hcimsgs.h"
+#include "sdp_api.h"
+#include "sdpint.h"
+#include "btu.h"
+#include "btm_api.h"
+
+
+#ifndef SDP_DEBUG_RAW
+#define SDP_DEBUG_RAW       FALSE
+#endif
+
+/********************************************************************************/
+/*              L O C A L    F U N C T I O N     P R O T O T Y P E S            */
+/********************************************************************************/
+#if SDP_CLIENT_ENABLED == TRUE
+static void          process_service_search_rsp (tCONN_CB *p_ccb, UINT8 *p_reply);
+static void          process_service_attr_rsp (tCONN_CB *p_ccb, UINT8 *p_reply);
+static void          process_service_search_attr_rsp (tCONN_CB *p_ccb, UINT8 *p_reply);
+static UINT8         *save_attr_seq (tCONN_CB *p_ccb, UINT8 *p, UINT8 *p_msg_end);
+static tSDP_DISC_REC *add_record (tSDP_DISCOVERY_DB *p_db, BD_ADDR p_bda);
+static UINT8         *add_attr (UINT8 *p, tSDP_DISCOVERY_DB *p_db, tSDP_DISC_REC *p_rec,
+                                UINT16 attr_id, tSDP_DISC_ATTR *p_parent_attr, UINT8 nest_level);
+
+/* Safety check in case we go crazy */
+#define MAX_NEST_LEVELS     5
+
+extern fixed_queue_t *btu_general_alarm_queue;
+
+/*******************************************************************************
+**
+** Function         sdpu_build_uuid_seq
+**
+** Description      This function builds a UUID sequence from the list of
+**                  passed UUIDs. It is also passed the address of the output
+**                  buffer.
+**
+** Returns          Pointer to next byte in the output buffer.
+**
+*******************************************************************************/
+static UINT8 *sdpu_build_uuid_seq (UINT8 *p_out, UINT16 num_uuids, tSDP_UUID *p_uuid_list)
+{
+    UINT16  xx;
+    UINT8   *p_len;
+
+    /* First thing is the data element header */
+    UINT8_TO_BE_STREAM  (p_out, (DATA_ELE_SEQ_DESC_TYPE << 3) | SIZE_IN_NEXT_BYTE);
+
+    /* Remember where the length goes. Leave space for it. */
+    p_len = p_out;
+    p_out += 1;
+
+    /* Now, loop through and put in all the UUID(s) */
+    for (xx = 0; xx < num_uuids; xx++, p_uuid_list++)
+    {
+        if (p_uuid_list->len == 2)
+        {
+            UINT8_TO_BE_STREAM  (p_out, (UUID_DESC_TYPE << 3) | SIZE_TWO_BYTES);
+            UINT16_TO_BE_STREAM (p_out, p_uuid_list->uu.uuid16);
+        }
+        else if (p_uuid_list->len == 4)
+        {
+            UINT8_TO_BE_STREAM  (p_out, (UUID_DESC_TYPE << 3) | SIZE_FOUR_BYTES);
+            UINT32_TO_BE_STREAM (p_out, p_uuid_list->uu.uuid32);
+        }
+        else
+        {
+            UINT8_TO_BE_STREAM (p_out, (UUID_DESC_TYPE << 3) | SIZE_SIXTEEN_BYTES);
+            ARRAY_TO_BE_STREAM (p_out, p_uuid_list->uu.uuid128, p_uuid_list->len);
+        }
+    }
+
+    /* Now, put in the length */
+    xx = (UINT16)(p_out - p_len - 1);
+    UINT8_TO_BE_STREAM (p_len, xx);
+
+    return (p_out);
+}
+
+/*******************************************************************************
+**
+** Function         sdp_snd_service_search_req
+**
+** Description      Send a service search request to the SDP server.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void sdp_snd_service_search_req(tCONN_CB *p_ccb, UINT8 cont_len, UINT8 * p_cont)
+{
+    UINT8           *p, *p_start, *p_param_len;
+    BT_HDR          *p_cmd = (BT_HDR *) osi_malloc(SDP_DATA_BUF_SIZE);
+    UINT16          param_len;
+
+    /* Prepare the buffer for sending the packet to L2CAP */
+    p_cmd->offset = L2CAP_MIN_OFFSET;
+    p = p_start = (UINT8 *)(p_cmd + 1) + L2CAP_MIN_OFFSET;
+
+    /* Build a service search request packet */
+    UINT8_TO_BE_STREAM  (p, SDP_PDU_SERVICE_SEARCH_REQ);
+    UINT16_TO_BE_STREAM (p, p_ccb->transaction_id);
+    p_ccb->transaction_id++;
+
+    /* Skip the length, we need to add it at the end */
+    p_param_len = p;
+    p += 2;
+
+    /* Build the UID sequence. */
+#if (defined(SDP_BROWSE_PLUS) && SDP_BROWSE_PLUS == TRUE)
+    p = sdpu_build_uuid_seq (p, 1, &p_ccb->p_db->uuid_filters[p_ccb->cur_uuid_idx]);
+#else
+    p = sdpu_build_uuid_seq (p, p_ccb->p_db->num_uuid_filters, p_ccb->p_db->uuid_filters);
+#endif
+
+    /* Set max service record count */
+    UINT16_TO_BE_STREAM (p, sdp_cb.max_recs_per_search);
+
+    /* Set continuation state */
+    UINT8_TO_BE_STREAM (p, cont_len);
+
+    /* if this is not the first request */
+    if(cont_len && p_cont)
+    {
+        memcpy(p, p_cont, cont_len);
+        p += cont_len;
+    }
+
+    /* Go back and put the parameter length into the buffer */
+    param_len = (UINT16)(p - p_param_len - 2);
+    UINT16_TO_BE_STREAM (p_param_len, param_len);
+
+    p_ccb->disc_state = SDP_DISC_WAIT_HANDLES;
+
+    /* Set the length of the SDP data in the buffer */
+    p_cmd->len = (UINT16)(p - p_start);
+
+#if (SDP_DEBUG_RAW == TRUE)
+    SDP_TRACE_WARNING("sdp_snd_service_search_req cont_len :%d disc_state:%d",cont_len, p_ccb->disc_state);
+#endif
+
+
+    L2CA_DataWrite (p_ccb->connection_id, p_cmd);
+
+    /* Start inactivity timer */
+    alarm_set_on_queue(p_ccb->sdp_conn_timer, SDP_INACT_TIMEOUT_MS,
+                       sdp_conn_timer_timeout, p_ccb, btu_general_alarm_queue);
+}
+
+/*******************************************************************************
+**
+** Function         sdp_disc_connected
+**
+** Description      This function is called when an SDP discovery attempt is
+**                  connected.
+**
+** Returns          void
+**
+*******************************************************************************/
+void sdp_disc_connected (tCONN_CB *p_ccb)
+{
+    if (p_ccb->is_attr_search)
+    {
+        p_ccb->disc_state = SDP_DISC_WAIT_SEARCH_ATTR;
+
+        process_service_search_attr_rsp (p_ccb, NULL);
+    }
+    else
+    {
+        /* First step is to get a list of the handles from the server. */
+        /* We are not searching for a specific attribute, so we will   */
+        /* first search for the service, then get all attributes of it */
+
+        p_ccb->num_handles = 0;
+        sdp_snd_service_search_req(p_ccb, 0, NULL);
+    }
+
+}
+
+/*******************************************************************************
+**
+** Function         sdp_disc_server_rsp
+**
+** Description      This function is called when there is a response from
+**                  the server.
+**
+** Returns          void
+**
+*******************************************************************************/
+void sdp_disc_server_rsp (tCONN_CB *p_ccb, BT_HDR *p_msg)
+{
+    UINT8           *p, rsp_pdu;
+    BOOLEAN         invalid_pdu = TRUE;
+
+#if (SDP_DEBUG_RAW == TRUE)
+    SDP_TRACE_WARNING("sdp_disc_server_rsp disc_state:%d", p_ccb->disc_state);
+#endif
+
+    /* stop inactivity timer when we receive a response */
+    alarm_cancel(p_ccb->sdp_conn_timer);
+
+    /* Got a reply!! Check what we got back */
+    p = (UINT8 *)(p_msg + 1) + p_msg->offset;
+
+    BE_STREAM_TO_UINT8 (rsp_pdu, p);
+
+    p_msg->len--;
+
+    switch (rsp_pdu)
+    {
+    case SDP_PDU_SERVICE_SEARCH_RSP:
+        if (p_ccb->disc_state == SDP_DISC_WAIT_HANDLES)
+        {
+            process_service_search_rsp (p_ccb, p);
+            invalid_pdu = FALSE;
+        }
+        break;
+
+    case SDP_PDU_SERVICE_ATTR_RSP:
+        if (p_ccb->disc_state == SDP_DISC_WAIT_ATTR)
+        {
+            process_service_attr_rsp (p_ccb, p);
+            invalid_pdu = FALSE;
+        }
+        break;
+
+    case SDP_PDU_SERVICE_SEARCH_ATTR_RSP:
+        if (p_ccb->disc_state == SDP_DISC_WAIT_SEARCH_ATTR)
+        {
+            process_service_search_attr_rsp (p_ccb, p);
+            invalid_pdu = FALSE;
+        }
+        break;
+    }
+
+    if (invalid_pdu)
+    {
+        SDP_TRACE_WARNING ("SDP - Unexp. PDU: %d in state: %d", rsp_pdu, p_ccb->disc_state);
+        sdp_disconnect (p_ccb, SDP_GENERIC_ERROR);
+    }
+}
+
+/******************************************************************************
+**
+** Function         process_service_search_rsp
+**
+** Description      This function is called when there is a search response from
+**                  the server.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void process_service_search_rsp (tCONN_CB *p_ccb, UINT8 *p_reply)
+{
+    UINT16      xx;
+    UINT16      total, cur_handles, orig;
+    UINT8       cont_len;
+
+    /* Skip transaction, and param len */
+    p_reply += 4;
+    BE_STREAM_TO_UINT16 (total, p_reply);
+    BE_STREAM_TO_UINT16 (cur_handles, p_reply);
+
+    orig = p_ccb->num_handles;
+    p_ccb->num_handles += cur_handles;
+    if (p_ccb->num_handles == 0)
+    {
+        SDP_TRACE_WARNING ("SDP - Rcvd ServiceSearchRsp, no matches");
+        sdp_disconnect (p_ccb, SDP_NO_RECS_MATCH);
+        return;
+    }
+
+    /* Save the handles that match. We will can only process a certain number. */
+    if (total > sdp_cb.max_recs_per_search)
+        total = sdp_cb.max_recs_per_search;
+    if (p_ccb->num_handles > sdp_cb.max_recs_per_search)
+        p_ccb->num_handles = sdp_cb.max_recs_per_search;
+
+    for (xx = orig; xx < p_ccb->num_handles; xx++)
+        BE_STREAM_TO_UINT32 (p_ccb->handles[xx], p_reply);
+
+    BE_STREAM_TO_UINT8 (cont_len, p_reply);
+    if(cont_len != 0)
+    {
+        if(cont_len > SDP_MAX_CONTINUATION_LEN)
+        {
+            sdp_disconnect (p_ccb, SDP_INVALID_CONT_STATE);
+            return;
+        }
+        /* stay in the same state */
+        sdp_snd_service_search_req(p_ccb, cont_len, p_reply);
+    }
+    else
+    {
+        /* change state */
+        p_ccb->disc_state = SDP_DISC_WAIT_ATTR;
+
+        /* Kick off the first attribute request */
+        process_service_attr_rsp (p_ccb, NULL);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         sdp_copy_raw_data
+**
+** Description      copy the raw data
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+#if (SDP_RAW_DATA_INCLUDED == TRUE)
+static void sdp_copy_raw_data (tCONN_CB *p_ccb, BOOLEAN offset)
+{
+    unsigned int    cpy_len;
+    UINT32          list_len;
+    UINT8           *p;
+    UINT8           type;
+
+#if (SDP_DEBUG_RAW == TRUE)
+    UINT8 num_array[SDP_MAX_LIST_BYTE_COUNT];
+    UINT32 i;
+
+    for (i = 0; i < p_ccb->list_len; i++)
+    {
+        sprintf((char *)&num_array[i*2],"%02X",(UINT8)(p_ccb->rsp_list[i]));
+    }
+    SDP_TRACE_WARNING("result :%s",num_array);
+#endif
+
+    if(p_ccb->p_db->raw_data)
+    {
+        cpy_len = p_ccb->p_db->raw_size - p_ccb->p_db->raw_used;
+        list_len = p_ccb->list_len;
+        p = &p_ccb->rsp_list[0];
+
+        if(offset)
+        {
+            type = *p++;
+            p = sdpu_get_len_from_type (p, type, &list_len);
+        }
+        if(list_len && list_len < cpy_len )
+        {
+            cpy_len = list_len;
+        }
+#if (SDP_DEBUG_RAW == TRUE)
+        SDP_TRACE_WARNING("list_len :%d cpy_len:%d raw_size:%d raw_used:%d",
+            list_len, cpy_len, p_ccb->p_db->raw_size, p_ccb->p_db->raw_used);
+#endif
+        memcpy (&p_ccb->p_db->raw_data[p_ccb->p_db->raw_used], p, cpy_len);
+        p_ccb->p_db->raw_used += cpy_len;
+    }
+}
+#endif
+
+/*******************************************************************************
+**
+** Function         process_service_attr_rsp
+**
+** Description      This function is called when there is a attribute response from
+**                  the server.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void process_service_attr_rsp (tCONN_CB *p_ccb, UINT8 *p_reply)
+{
+    UINT8           *p_start, *p_param_len;
+    UINT16          param_len, list_byte_count;
+    BOOLEAN         cont_request_needed = FALSE;
+
+#if (SDP_DEBUG_RAW == TRUE)
+    SDP_TRACE_WARNING("process_service_attr_rsp raw inc:%d",
+        SDP_RAW_DATA_INCLUDED);
+#endif
+    /* If p_reply is NULL, we were called after the records handles were read */
+    if (p_reply)
+    {
+#if (SDP_DEBUG_RAW == TRUE)
+        SDP_TRACE_WARNING("ID & len: 0x%02x-%02x-%02x-%02x",
+            p_reply[0], p_reply[1], p_reply[2], p_reply[3]);
+#endif
+        /* Skip transaction ID and length */
+        p_reply += 4;
+
+        BE_STREAM_TO_UINT16 (list_byte_count, p_reply);
+#if (SDP_DEBUG_RAW == TRUE)
+        SDP_TRACE_WARNING("list_byte_count:%d", list_byte_count);
+#endif
+
+        /* Copy the response to the scratchpad. First, a safety check on the length */
+        if ((p_ccb->list_len + list_byte_count) > SDP_MAX_LIST_BYTE_COUNT)
+        {
+            sdp_disconnect (p_ccb, SDP_INVALID_PDU_SIZE);
+            return;
+        }
+
+#if (SDP_DEBUG_RAW == TRUE)
+        SDP_TRACE_WARNING("list_len: %d, list_byte_count: %d",
+            p_ccb->list_len, list_byte_count);
+#endif
+        if (p_ccb->rsp_list == NULL)
+            p_ccb->rsp_list = (UINT8 *)osi_malloc(SDP_MAX_LIST_BYTE_COUNT);
+        memcpy(&p_ccb->rsp_list[p_ccb->list_len], p_reply, list_byte_count);
+        p_ccb->list_len += list_byte_count;
+        p_reply         += list_byte_count;
+#if (SDP_DEBUG_RAW == TRUE)
+        SDP_TRACE_WARNING("list_len: %d(attr_rsp)", p_ccb->list_len);
+
+        /* Check if we need to request a continuation */
+        SDP_TRACE_WARNING("*p_reply:%d(%d)", *p_reply, SDP_MAX_CONTINUATION_LEN);
+#endif
+        if (*p_reply)
+        {
+            if (*p_reply > SDP_MAX_CONTINUATION_LEN)
+            {
+                sdp_disconnect (p_ccb, SDP_INVALID_CONT_STATE);
+                return;
+            }
+            cont_request_needed = TRUE;
+        }
+        else
+        {
+
+#if (SDP_RAW_DATA_INCLUDED == TRUE)
+            SDP_TRACE_WARNING("process_service_attr_rsp");
+            sdp_copy_raw_data (p_ccb, FALSE);
+#endif
+
+            /* Save the response in the database. Stop on any error */
+            if (!save_attr_seq (p_ccb, &p_ccb->rsp_list[0], &p_ccb->rsp_list[p_ccb->list_len]))
+            {
+                sdp_disconnect (p_ccb, SDP_DB_FULL);
+                return;
+            }
+            p_ccb->list_len = 0;
+            p_ccb->cur_handle++;
+        }
+    }
+
+    /* Now, ask for the next handle. Re-use the buffer we just got. */
+    if (p_ccb->cur_handle < p_ccb->num_handles)
+    {
+        BT_HDR  *p_msg = (BT_HDR *)osi_malloc(SDP_DATA_BUF_SIZE);
+        UINT8   *p;
+
+        p_msg->offset = L2CAP_MIN_OFFSET;
+        p = p_start = (UINT8 *)(p_msg + 1) + L2CAP_MIN_OFFSET;
+
+        /* Get all the attributes from the server */
+        UINT8_TO_BE_STREAM  (p, SDP_PDU_SERVICE_ATTR_REQ);
+        UINT16_TO_BE_STREAM (p, p_ccb->transaction_id);
+        p_ccb->transaction_id++;
+
+        /* Skip the length, we need to add it at the end */
+        p_param_len = p;
+        p += 2;
+
+        UINT32_TO_BE_STREAM (p, p_ccb->handles[p_ccb->cur_handle]);
+
+        /* Max attribute byte count */
+        UINT16_TO_BE_STREAM (p, sdp_cb.max_attr_list_size);
+
+        /* If no attribute filters, build a wildcard attribute sequence */
+        if (p_ccb->p_db->num_attr_filters)
+            p = sdpu_build_attrib_seq (p, p_ccb->p_db->attr_filters, p_ccb->p_db->num_attr_filters);
+        else
+            p = sdpu_build_attrib_seq (p, NULL, 0);
+
+        /* Was this a continuation request ? */
+        if (cont_request_needed)
+        {
+            memcpy (p, p_reply, *p_reply + 1);
+            p += *p_reply + 1;
+        }
+        else
+            UINT8_TO_BE_STREAM (p, 0);
+
+        /* Go back and put the parameter length into the buffer */
+        param_len = (UINT16)(p - p_param_len - 2);
+        UINT16_TO_BE_STREAM (p_param_len, param_len);
+
+        /* Set the length of the SDP data in the buffer */
+        p_msg->len = (UINT16)(p - p_start);
+
+
+        L2CA_DataWrite (p_ccb->connection_id, p_msg);
+
+        /* Start inactivity timer */
+        alarm_set_on_queue(p_ccb->sdp_conn_timer, SDP_INACT_TIMEOUT_MS,
+                           sdp_conn_timer_timeout, p_ccb,
+                           btu_general_alarm_queue);
+    }
+    else
+    {
+        sdp_disconnect (p_ccb, SDP_SUCCESS);
+        return;
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         process_service_search_attr_rsp
+**
+** Description      This function is called when there is a search attribute
+**                  response from the server.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void process_service_search_attr_rsp (tCONN_CB *p_ccb, UINT8 *p_reply)
+{
+    UINT8           *p, *p_start, *p_end, *p_param_len;
+    UINT8           type;
+    UINT32          seq_len;
+    UINT16          param_len, lists_byte_count = 0;
+    BOOLEAN         cont_request_needed = FALSE;
+
+#if (SDP_DEBUG_RAW == TRUE)
+    SDP_TRACE_WARNING("process_service_search_attr_rsp");
+#endif
+    /* If p_reply is NULL, we were called for the initial read */
+    if (p_reply)
+    {
+#if (SDP_DEBUG_RAW == TRUE)
+        SDP_TRACE_WARNING("ID & len: 0x%02x-%02x-%02x-%02x",
+            p_reply[0], p_reply[1], p_reply[2], p_reply[3]);
+#endif
+        /* Skip transaction ID and length */
+        p_reply += 4;
+
+        BE_STREAM_TO_UINT16 (lists_byte_count, p_reply);
+#if (SDP_DEBUG_RAW == TRUE)
+        SDP_TRACE_WARNING("lists_byte_count:%d", lists_byte_count);
+#endif
+
+        /* Copy the response to the scratchpad. First, a safety check on the length */
+        if ((p_ccb->list_len + lists_byte_count) > SDP_MAX_LIST_BYTE_COUNT)
+        {
+            sdp_disconnect (p_ccb, SDP_INVALID_PDU_SIZE);
+            return;
+        }
+
+#if (SDP_DEBUG_RAW == TRUE)
+        SDP_TRACE_WARNING("list_len: %d, list_byte_count: %d",
+            p_ccb->list_len, lists_byte_count);
+#endif
+        if (p_ccb->rsp_list == NULL)
+            p_ccb->rsp_list = (UINT8 *)osi_malloc(SDP_MAX_LIST_BYTE_COUNT);
+        memcpy (&p_ccb->rsp_list[p_ccb->list_len], p_reply, lists_byte_count);
+        p_ccb->list_len += lists_byte_count;
+        p_reply         += lists_byte_count;
+#if (SDP_DEBUG_RAW == TRUE)
+        SDP_TRACE_WARNING("list_len: %d(search_attr_rsp)", p_ccb->list_len);
+
+        /* Check if we need to request a continuation */
+        SDP_TRACE_WARNING("*p_reply:%d(%d)", *p_reply, SDP_MAX_CONTINUATION_LEN);
+#endif
+        if (*p_reply)
+        {
+            if (*p_reply > SDP_MAX_CONTINUATION_LEN)
+            {
+                sdp_disconnect (p_ccb, SDP_INVALID_CONT_STATE);
+                return;
+            }
+
+            cont_request_needed = TRUE;
+        }
+    }
+
+#if (SDP_DEBUG_RAW == TRUE)
+    SDP_TRACE_WARNING("cont_request_needed:%d", cont_request_needed);
+#endif
+    /* If continuation request (or first time request) */
+    if ((cont_request_needed) || (!p_reply))
+    {
+        BT_HDR  *p_msg = (BT_HDR *)osi_malloc(SDP_DATA_BUF_SIZE);
+        UINT8   *p;
+
+        p_msg->offset = L2CAP_MIN_OFFSET;
+        p = p_start = (UINT8 *)(p_msg + 1) + L2CAP_MIN_OFFSET;
+
+        /* Build a service search request packet */
+        UINT8_TO_BE_STREAM  (p, SDP_PDU_SERVICE_SEARCH_ATTR_REQ);
+        UINT16_TO_BE_STREAM (p, p_ccb->transaction_id);
+        p_ccb->transaction_id++;
+
+        /* Skip the length, we need to add it at the end */
+        p_param_len = p;
+        p += 2;
+
+        /* Build the UID sequence. */
+#if (defined(SDP_BROWSE_PLUS) && SDP_BROWSE_PLUS == TRUE)
+        p = sdpu_build_uuid_seq (p, 1, &p_ccb->p_db->uuid_filters[p_ccb->cur_uuid_idx]);
+#else
+        p = sdpu_build_uuid_seq (p, p_ccb->p_db->num_uuid_filters, p_ccb->p_db->uuid_filters);
+#endif
+
+        /* Max attribute byte count */
+        UINT16_TO_BE_STREAM (p, sdp_cb.max_attr_list_size);
+
+        /* If no attribute filters, build a wildcard attribute sequence */
+        if (p_ccb->p_db->num_attr_filters)
+            p = sdpu_build_attrib_seq (p, p_ccb->p_db->attr_filters, p_ccb->p_db->num_attr_filters);
+        else
+            p = sdpu_build_attrib_seq (p, NULL, 0);
+
+        /* No continuation for first request */
+        if (p_reply)
+        {
+            memcpy (p, p_reply, *p_reply + 1);
+            p += *p_reply + 1;
+        }
+        else
+            UINT8_TO_BE_STREAM (p, 0);
+
+        /* Go back and put the parameter length into the buffer */
+        param_len = p - p_param_len - 2;
+        UINT16_TO_BE_STREAM (p_param_len, param_len);
+
+        /* Set the length of the SDP data in the buffer */
+        p_msg->len = p - p_start;
+
+
+        L2CA_DataWrite (p_ccb->connection_id, p_msg);
+
+        /* Start inactivity timer */
+        alarm_set_on_queue(p_ccb->sdp_conn_timer, SDP_INACT_TIMEOUT_MS,
+                           sdp_conn_timer_timeout, p_ccb,
+                           btu_general_alarm_queue);
+
+        return;
+    }
+
+
+    /*******************************************************************/
+    /* We now have the full response, which is a sequence of sequences */
+    /*******************************************************************/
+
+#if (SDP_RAW_DATA_INCLUDED == TRUE)
+    SDP_TRACE_WARNING("process_service_search_attr_rsp");
+    sdp_copy_raw_data (p_ccb, TRUE);
+#endif
+
+    p = &p_ccb->rsp_list[0];
+
+    /* The contents is a sequence of attribute sequences */
+    type = *p++;
+
+    if ((type >> 3) != DATA_ELE_SEQ_DESC_TYPE)
+    {
+        SDP_TRACE_WARNING ("SDP - Wrong type: 0x%02x in attr_rsp", type);
+        return;
+    }
+    p = sdpu_get_len_from_type (p, type, &seq_len);
+
+    p_end = &p_ccb->rsp_list[p_ccb->list_len];
+
+    if ((p + seq_len) != p_end)
+    {
+        sdp_disconnect (p_ccb, SDP_INVALID_CONT_STATE);
+        return;
+    }
+
+    while (p < p_end)
+    {
+        p = save_attr_seq (p_ccb, p, &p_ccb->rsp_list[p_ccb->list_len]);
+        if (!p)
+        {
+            sdp_disconnect (p_ccb, SDP_DB_FULL);
+            return;
+        }
+    }
+
+    /* Since we got everything we need, disconnect the call */
+    sdp_disconnect (p_ccb, SDP_SUCCESS);
+}
+
+/*******************************************************************************
+**
+** Function         save_attr_seq
+**
+** Description      This function is called when there is a response from
+**                  the server.
+**
+** Returns          pointer to next byte or NULL if error
+**
+*******************************************************************************/
+static UINT8 *save_attr_seq (tCONN_CB *p_ccb, UINT8 *p, UINT8 *p_msg_end)
+{
+    UINT32      seq_len, attr_len;
+    UINT16      attr_id;
+    UINT8       type, *p_seq_end;
+    tSDP_DISC_REC *p_rec;
+
+    type = *p++;
+
+    if ((type >> 3) != DATA_ELE_SEQ_DESC_TYPE)
+    {
+        SDP_TRACE_WARNING ("SDP - Wrong type: 0x%02x in attr_rsp", type);
+        return (NULL);
+    }
+
+    p = sdpu_get_len_from_type (p, type, &seq_len);
+    if ((p + seq_len) > p_msg_end)
+    {
+        SDP_TRACE_WARNING ("SDP - Bad len in attr_rsp %d", seq_len);
+        return (NULL);
+    }
+
+    /* Create a record */
+    p_rec = add_record (p_ccb->p_db, p_ccb->device_address);
+    if (!p_rec)
+    {
+        SDP_TRACE_WARNING ("SDP - DB full add_record");
+        return (NULL);
+    }
+
+    p_seq_end = p + seq_len;
+
+    while (p < p_seq_end)
+    {
+        /* First get the attribute ID */
+        type = *p++;
+        p = sdpu_get_len_from_type (p, type, &attr_len);
+        if (((type >> 3) != UINT_DESC_TYPE) || (attr_len != 2))
+        {
+            SDP_TRACE_WARNING ("SDP - Bad type: 0x%02x or len: %d in attr_rsp", type, attr_len);
+            return (NULL);
+        }
+        BE_STREAM_TO_UINT16 (attr_id, p);
+
+        /* Now, add the attribute value */
+        p = add_attr (p, p_ccb->p_db, p_rec, attr_id, NULL, 0);
+
+        if (!p)
+        {
+            SDP_TRACE_WARNING ("SDP - DB full add_attr");
+            return (NULL);
+        }
+    }
+
+    return (p);
+}
+
+
+/*******************************************************************************
+**
+** Function         add_record
+**
+** Description      This function allocates space for a record from the DB.
+**
+** Returns          pointer to next byte in data stream
+**
+*******************************************************************************/
+tSDP_DISC_REC *add_record (tSDP_DISCOVERY_DB *p_db, BD_ADDR p_bda)
+{
+    tSDP_DISC_REC   *p_rec;
+
+    /* See if there is enough space in the database */
+    if (p_db->mem_free < sizeof (tSDP_DISC_REC))
+        return (NULL);
+
+    p_rec = (tSDP_DISC_REC *) p_db->p_free_mem;
+    p_db->p_free_mem += sizeof (tSDP_DISC_REC);
+    p_db->mem_free   -= sizeof (tSDP_DISC_REC);
+
+    p_rec->p_first_attr = NULL;
+    p_rec->p_next_rec   = NULL;
+
+    memcpy (p_rec->remote_bd_addr, p_bda, BD_ADDR_LEN);
+
+    /* Add the record to the end of chain */
+    if (!p_db->p_first_rec)
+        p_db->p_first_rec = p_rec;
+    else
+    {
+        tSDP_DISC_REC   *p_rec1 = p_db->p_first_rec;
+
+        while (p_rec1->p_next_rec)
+            p_rec1 = p_rec1->p_next_rec;
+
+        p_rec1->p_next_rec = p_rec;
+    }
+
+    return (p_rec);
+}
+
+#define SDP_ADDITIONAL_LIST_MASK        0x80
+/*******************************************************************************
+**
+** Function         add_attr
+**
+** Description      This function allocates space for an attribute from the DB
+**                  and copies the data into it.
+**
+** Returns          pointer to next byte in data stream
+**
+*******************************************************************************/
+static UINT8 *add_attr (UINT8 *p, tSDP_DISCOVERY_DB *p_db, tSDP_DISC_REC *p_rec,
+                        UINT16 attr_id, tSDP_DISC_ATTR *p_parent_attr, UINT8 nest_level)
+{
+    tSDP_DISC_ATTR  *p_attr;
+    UINT32          attr_len;
+    UINT32          total_len;
+    UINT16          attr_type;
+    UINT16          id;
+    UINT8           type;
+    UINT8           *p_end;
+    UINT8           is_additional_list = nest_level & SDP_ADDITIONAL_LIST_MASK;
+
+    nest_level &= ~(SDP_ADDITIONAL_LIST_MASK);
+
+    type = *p++;
+    p = sdpu_get_len_from_type (p, type, &attr_len);
+
+    attr_len &= SDP_DISC_ATTR_LEN_MASK;
+    attr_type = (type >> 3) & 0x0f;
+
+    /* See if there is enough space in the database */
+    if (attr_len > 4)
+        total_len = attr_len - 4 + (UINT16)sizeof (tSDP_DISC_ATTR);
+    else
+        total_len = sizeof (tSDP_DISC_ATTR);
+
+    /* Ensure it is a multiple of 4 */
+    total_len = (total_len + 3) & ~3;
+
+    /* See if there is enough space in the database */
+    if (p_db->mem_free < total_len)
+        return (NULL);
+
+    p_attr                = (tSDP_DISC_ATTR *) p_db->p_free_mem;
+    p_attr->attr_id       = attr_id;
+    p_attr->attr_len_type = (UINT16)attr_len | (attr_type << 12);
+    p_attr->p_next_attr = NULL;
+
+    /* Store the attribute value */
+    switch (attr_type)
+    {
+    case UINT_DESC_TYPE:
+        if( (is_additional_list != 0) && (attr_len == 2) )
+        {
+            BE_STREAM_TO_UINT16 (id, p);
+            if(id != ATTR_ID_PROTOCOL_DESC_LIST)
+                p -= 2;
+            else
+            {
+                /* Reserve the memory for the attribute now, as we need to add sub-attributes */
+                p_db->p_free_mem += sizeof (tSDP_DISC_ATTR);
+                p_db->mem_free   -= sizeof (tSDP_DISC_ATTR);
+                p_end             = p + attr_len;
+                total_len         = 0;
+
+                /* SDP_TRACE_DEBUG ("SDP - attr nest level:%d(list)", nest_level); */
+                if (nest_level >= MAX_NEST_LEVELS)
+                {
+                    SDP_TRACE_ERROR ("SDP - attr nesting too deep");
+                    return (p_end);
+                }
+
+                /* Now, add the list entry */
+                p = add_attr (p, p_db, p_rec, ATTR_ID_PROTOCOL_DESC_LIST, p_attr, (UINT8)(nest_level + 1));
+
+                break;
+            }
+        }
+        /* Case falls through */
+
+    case TWO_COMP_INT_DESC_TYPE:
+        switch (attr_len)
+        {
+        case 1:
+            p_attr->attr_value.v.u8 = *p++;
+            break;
+        case 2:
+            BE_STREAM_TO_UINT16 (p_attr->attr_value.v.u16, p);
+            break;
+        case 4:
+            BE_STREAM_TO_UINT32 (p_attr->attr_value.v.u32, p);
+            break;
+        default:
+            BE_STREAM_TO_ARRAY (p, p_attr->attr_value.v.array, (INT32)attr_len);
+            break;
+        }
+        break;
+
+    case UUID_DESC_TYPE:
+        switch (attr_len)
+        {
+        case 2:
+            BE_STREAM_TO_UINT16 (p_attr->attr_value.v.u16, p);
+            break;
+        case 4:
+            BE_STREAM_TO_UINT32 (p_attr->attr_value.v.u32, p);
+            if (p_attr->attr_value.v.u32 < 0x10000)
+            {
+                attr_len = 2;
+                p_attr->attr_len_type = (UINT16)attr_len | (attr_type << 12);
+                p_attr->attr_value.v.u16 = (UINT16) p_attr->attr_value.v.u32;
+
+            }
+            break;
+        case 16:
+            /* See if we can compress his UUID down to 16 or 32bit UUIDs */
+            if (sdpu_is_base_uuid (p))
+            {
+                if ((p[0] == 0) && (p[1] == 0))
+                {
+                    p_attr->attr_len_type = (p_attr->attr_len_type & ~SDP_DISC_ATTR_LEN_MASK) | 2;
+                    p += 2;
+                    BE_STREAM_TO_UINT16 (p_attr->attr_value.v.u16, p);
+                    p += MAX_UUID_SIZE - 4;
+                }
+                else
+                {
+                    p_attr->attr_len_type = (p_attr->attr_len_type & ~SDP_DISC_ATTR_LEN_MASK) | 4;
+                    BE_STREAM_TO_UINT32 (p_attr->attr_value.v.u32, p);
+                    p += MAX_UUID_SIZE - 4;
+                }
+            }
+            else
+            {
+                 /* coverity[overrun-local] */
+                 /*
+                    Event overrun-local: Overrun of static array "p_attr->attr_value.v.array" of size 4 at position 15 with index variable "ijk"
+                    False-positive: SDP uses scratch buffer to hold the attribute value.
+                    The actual size of tSDP_DISC_ATVAL does not matter.
+                    If the array size in tSDP_DISC_ATVAL is increase, we would increase the system RAM usage unnecessarily
+                */
+                BE_STREAM_TO_ARRAY (p, p_attr->attr_value.v.array, (INT32)attr_len);
+            }
+            break;
+        default:
+            SDP_TRACE_WARNING ("SDP - bad len in UUID attr: %d", attr_len);
+            return (p + attr_len);
+        }
+        break;
+
+    case DATA_ELE_SEQ_DESC_TYPE:
+    case DATA_ELE_ALT_DESC_TYPE:
+        /* Reserve the memory for the attribute now, as we need to add sub-attributes */
+        p_db->p_free_mem += sizeof (tSDP_DISC_ATTR);
+        p_db->mem_free   -= sizeof (tSDP_DISC_ATTR);
+        p_end             = p + attr_len;
+        total_len         = 0;
+
+        /* SDP_TRACE_DEBUG ("SDP - attr nest level:%d", nest_level); */
+        if (nest_level >= MAX_NEST_LEVELS)
+        {
+            SDP_TRACE_ERROR ("SDP - attr nesting too deep");
+            return (p_end);
+        }
+        if(is_additional_list != 0 || attr_id == ATTR_ID_ADDITION_PROTO_DESC_LISTS)
+            nest_level |= SDP_ADDITIONAL_LIST_MASK;
+        /* SDP_TRACE_DEBUG ("SDP - attr nest level:0x%x(finish)", nest_level); */
+
+        while (p < p_end)
+        {
+            /* Now, add the list entry */
+            p = add_attr (p, p_db, p_rec, 0, p_attr, (UINT8)(nest_level + 1));
+
+            if (!p)
+                return (NULL);
+        }
+        break;
+
+    case TEXT_STR_DESC_TYPE:
+    case URL_DESC_TYPE:
+        BE_STREAM_TO_ARRAY (p, p_attr->attr_value.v.array, (INT32)attr_len);
+        break;
+
+    case BOOLEAN_DESC_TYPE:
+        switch (attr_len)
+        {
+        case 1:
+            p_attr->attr_value.v.u8 = *p++;
+            break;
+        default:
+            SDP_TRACE_WARNING ("SDP - bad len in boolean attr: %d", attr_len);
+            return (p + attr_len);
+        }
+        break;
+
+    default:    /* switch (attr_type) */
+        break;
+    }
+
+    p_db->p_free_mem += total_len;
+    p_db->mem_free   -= total_len;
+
+    /* Add the attribute to the end of the chain */
+    if (!p_parent_attr)
+    {
+        if (!p_rec->p_first_attr)
+            p_rec->p_first_attr = p_attr;
+        else
+        {
+            tSDP_DISC_ATTR  *p_attr1 = p_rec->p_first_attr;
+
+            while (p_attr1->p_next_attr)
+                p_attr1 = p_attr1->p_next_attr;
+
+            p_attr1->p_next_attr = p_attr;
+        }
+    }
+    else
+    {
+        if (!p_parent_attr->attr_value.v.p_sub_attr)
+        {
+            p_parent_attr->attr_value.v.p_sub_attr = p_attr;
+            /* SDP_TRACE_DEBUG ("parent:0x%x(id:%d), ch:0x%x(id:%d)",
+                p_parent_attr, p_parent_attr->attr_id, p_attr, p_attr->attr_id); */
+        }
+        else
+        {
+            tSDP_DISC_ATTR  *p_attr1 = p_parent_attr->attr_value.v.p_sub_attr;
+            /* SDP_TRACE_DEBUG ("parent:0x%x(id:%d), ch1:0x%x(id:%d)",
+                p_parent_attr, p_parent_attr->attr_id, p_attr1, p_attr1->attr_id); */
+
+            while (p_attr1->p_next_attr)
+                p_attr1 = p_attr1->p_next_attr;
+
+            p_attr1->p_next_attr = p_attr;
+            /* SDP_TRACE_DEBUG ("new ch:0x%x(id:%d)", p_attr, p_attr->attr_id); */
+        }
+    }
+
+    return (p);
+}
+
+#endif  /* CLIENT_ENABLED == TRUE */
diff --git a/rtkbt/code/bt/stack/sdp/sdp_main.c b/rtkbt/code/bt/stack/sdp/sdp_main.c
new file mode 100755
index 0000000..c888817
--- /dev/null
+++ b/rtkbt/code/bt/stack/sdp/sdp_main.c
@@ -0,0 +1,729 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains the main SDP functions
+ *
+ ******************************************************************************/
+
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+
+#include "bt_target.h"
+#include "bt_utils.h"
+#include "bt_common.h"
+#include "l2cdefs.h"
+#include "hcidefs.h"
+#include "hcimsgs.h"
+
+#include "l2c_api.h"
+#include "l2cdefs.h"
+
+#include "btu.h"
+#include "btm_api.h"
+
+#include "sdp_api.h"
+#include "sdpint.h"
+
+
+extern fixed_queue_t *btu_general_alarm_queue;
+
+/********************************************************************************/
+/*                       G L O B A L      S D P       D A T A                   */
+/********************************************************************************/
+#if SDP_DYNAMIC_MEMORY == FALSE
+tSDP_CB  sdp_cb;
+#endif
+
+/********************************************************************************/
+/*              L O C A L    F U N C T I O N     P R O T O T Y P E S            */
+/********************************************************************************/
+static void sdp_connect_ind (BD_ADDR  bd_addr, UINT16 l2cap_cid, UINT16 psm,
+                             UINT8 l2cap_id);
+static void sdp_config_ind (UINT16 l2cap_cid, tL2CAP_CFG_INFO *p_cfg);
+static void sdp_config_cfm (UINT16 l2cap_cid, tL2CAP_CFG_INFO *p_cfg);
+static void sdp_disconnect_ind (UINT16 l2cap_cid, BOOLEAN ack_needed);
+static void sdp_data_ind (UINT16 l2cap_cid, BT_HDR *p_msg);
+
+#if SDP_CLIENT_ENABLED == TRUE
+static void sdp_connect_cfm (UINT16 l2cap_cid, UINT16 result);
+static void sdp_disconnect_cfm (UINT16 l2cap_cid, UINT16 result);
+#else
+#define sdp_connect_cfm     NULL
+#define sdp_disconnect_cfm  NULL
+#endif
+
+
+/*******************************************************************************
+**
+** Function         sdp_init
+**
+** Description      This function initializes the SDP unit.
+**
+** Returns          void
+**
+*******************************************************************************/
+void sdp_init (void)
+{
+    /* Clears all structures and local SDP database (if Server is enabled) */
+    memset (&sdp_cb, 0, sizeof (tSDP_CB));
+
+    /* Initialize the L2CAP configuration. We only care about MTU and flush */
+    sdp_cb.l2cap_my_cfg.mtu_present       = TRUE;
+    sdp_cb.l2cap_my_cfg.mtu               = SDP_MTU_SIZE;
+    sdp_cb.l2cap_my_cfg.flush_to_present  = TRUE;
+    sdp_cb.l2cap_my_cfg.flush_to          = SDP_FLUSH_TO;
+
+    sdp_cb.max_attr_list_size             = SDP_MTU_SIZE - 16;
+    sdp_cb.max_recs_per_search            = SDP_MAX_DISC_SERVER_RECS;
+
+#if SDP_SERVER_ENABLED == TRUE
+    /* Register with Security Manager for the specific security level */
+    if (!BTM_SetSecurityLevel (FALSE, SDP_SERVICE_NAME, BTM_SEC_SERVICE_SDP_SERVER,
+                               SDP_SECURITY_LEVEL, SDP_PSM, 0, 0))
+    {
+        SDP_TRACE_ERROR ("Security Registration Server failed");
+        return;
+    }
+#endif
+
+#if SDP_CLIENT_ENABLED == TRUE
+    /* Register with Security Manager for the specific security level */
+    if (!BTM_SetSecurityLevel (TRUE, SDP_SERVICE_NAME, BTM_SEC_SERVICE_SDP_SERVER,
+                               SDP_SECURITY_LEVEL, SDP_PSM, 0, 0))
+    {
+        SDP_TRACE_ERROR ("Security Registration for Client failed");
+        return;
+    }
+#endif
+
+#if defined(SDP_INITIAL_TRACE_LEVEL)
+    sdp_cb.trace_level = SDP_INITIAL_TRACE_LEVEL;
+#else
+    sdp_cb.trace_level = BT_TRACE_LEVEL_NONE;    /* No traces */
+#endif
+
+    sdp_cb.reg_info.pL2CA_ConnectInd_Cb = sdp_connect_ind;
+    sdp_cb.reg_info.pL2CA_ConnectCfm_Cb = sdp_connect_cfm;
+    sdp_cb.reg_info.pL2CA_ConnectPnd_Cb = NULL;
+    sdp_cb.reg_info.pL2CA_ConfigInd_Cb  = sdp_config_ind;
+    sdp_cb.reg_info.pL2CA_ConfigCfm_Cb  = sdp_config_cfm;
+    sdp_cb.reg_info.pL2CA_DisconnectInd_Cb = sdp_disconnect_ind;
+    sdp_cb.reg_info.pL2CA_DisconnectCfm_Cb = sdp_disconnect_cfm;
+    sdp_cb.reg_info.pL2CA_QoSViolationInd_Cb = NULL;
+    sdp_cb.reg_info.pL2CA_DataInd_Cb = sdp_data_ind;
+    sdp_cb.reg_info.pL2CA_CongestionStatus_Cb = NULL;
+    sdp_cb.reg_info.pL2CA_TxComplete_Cb       = NULL;
+
+    /* Now, register with L2CAP */
+    if (!L2CA_Register (SDP_PSM, &sdp_cb.reg_info))
+    {
+        SDP_TRACE_ERROR ("SDP Registration failed");
+    }
+}
+
+#if (defined(SDP_DEBUG) && SDP_DEBUG == TRUE)
+/*******************************************************************************
+**
+** Function         sdp_set_max_attr_list_size
+**
+** Description      This function sets the max attribute list size to use
+**
+** Returns          void
+**
+*******************************************************************************/
+UINT16 sdp_set_max_attr_list_size (UINT16 max_size)
+{
+    if (max_size > (sdp_cb.l2cap_my_cfg.mtu - 16) )
+        max_size = sdp_cb.l2cap_my_cfg.mtu - 16;
+
+    sdp_cb.max_attr_list_size  = max_size;
+
+    return sdp_cb.max_attr_list_size;
+}
+#endif
+
+/*******************************************************************************
+**
+** Function         sdp_connect_ind
+**
+** Description      This function handles an inbound connection indication
+**                  from L2CAP. This is the case where we are acting as a
+**                  server.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void sdp_connect_ind (BD_ADDR  bd_addr, UINT16 l2cap_cid, UINT16 psm, UINT8 l2cap_id)
+{
+    UNUSED(psm);
+#if SDP_SERVER_ENABLED == TRUE
+    tCONN_CB    *p_ccb;
+
+    /* Allocate a new CCB. Return if none available. */
+    if ((p_ccb = sdpu_allocate_ccb()) == NULL)
+        return;
+
+    /* Transition to the next appropriate state, waiting for config setup. */
+    p_ccb->con_state = SDP_STATE_CFG_SETUP;
+
+    /* Save the BD Address and Channel ID. */
+    memcpy (&p_ccb->device_address[0], bd_addr, sizeof (BD_ADDR));
+    p_ccb->connection_id = l2cap_cid;
+
+    /* Send response to the L2CAP layer. */
+    L2CA_ConnectRsp (bd_addr, l2cap_id, l2cap_cid, L2CAP_CONN_OK, L2CAP_CONN_OK);
+    {
+        tL2CAP_CFG_INFO cfg = sdp_cb.l2cap_my_cfg;
+
+        if (cfg.fcr_present)
+        {
+            SDP_TRACE_DEBUG("sdp_connect_ind:  mode %u, txwinsz %u, max_trans %u, rtrans_tout %u, mon_tout %u, mps %u",
+                        cfg.fcr.mode, cfg.fcr.tx_win_sz, cfg.fcr.max_transmit,
+                        cfg.fcr.rtrans_tout,cfg.fcr.mon_tout, cfg.fcr.mps);
+        }
+
+        if ((!L2CA_ConfigReq (l2cap_cid, &cfg)) && cfg.fcr_present
+             && cfg.fcr.mode != L2CAP_FCR_BASIC_MODE)
+        {
+            /* FCR not desired; try again in basic mode */
+            cfg.fcr.mode = L2CAP_FCR_BASIC_MODE;
+            cfg.fcr_present = FALSE;
+            L2CA_ConfigReq (l2cap_cid, &cfg);
+        }
+    }
+
+    SDP_TRACE_EVENT ("SDP - Rcvd L2CAP conn ind, sent config req, CID 0x%x", p_ccb->connection_id);
+#else   /* No server */
+    /* Reject the connection */
+    L2CA_ConnectRsp (bd_addr, l2cap_id, l2cap_cid, L2CAP_CONN_NO_PSM, 0);
+#endif
+}
+
+#if SDP_CLIENT_ENABLED == TRUE
+/*******************************************************************************
+**
+** Function         sdp_connect_cfm
+**
+** Description      This function handles the connect confirm events
+**                  from L2CAP. This is the case when we are acting as a
+**                  client and have sent a connect request.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void sdp_connect_cfm (UINT16 l2cap_cid, UINT16 result)
+{
+    tCONN_CB    *p_ccb;
+    tL2CAP_CFG_INFO cfg;
+
+    /* Find CCB based on CID */
+    if ((p_ccb = sdpu_find_ccb_by_cid (l2cap_cid)) == NULL)
+    {
+        SDP_TRACE_WARNING ("SDP - Rcvd conn cnf for unknown CID 0x%x", l2cap_cid);
+        return;
+    }
+
+    /* If the connection response contains success status, then */
+    /* Transition to the next state and startup the timer.      */
+    if ((result == L2CAP_CONN_OK) && (p_ccb->con_state == SDP_STATE_CONN_SETUP))
+    {
+        p_ccb->con_state = SDP_STATE_CFG_SETUP;
+
+        cfg = sdp_cb.l2cap_my_cfg;
+
+        if (cfg.fcr_present)
+        {
+            SDP_TRACE_DEBUG("sdp_connect_cfm:  mode %u, txwinsz %u, max_trans %u, rtrans_tout %u, mon_tout %u, mps %u",
+                        cfg.fcr.mode, cfg.fcr.tx_win_sz, cfg.fcr.max_transmit,
+                        cfg.fcr.rtrans_tout,cfg.fcr.mon_tout, cfg.fcr.mps);
+        }
+
+        if ((!L2CA_ConfigReq (l2cap_cid, &cfg)) && cfg.fcr_present
+             && cfg.fcr.mode != L2CAP_FCR_BASIC_MODE)
+        {
+            /* FCR not desired; try again in basic mode */
+            cfg.fcr_present = FALSE;
+            cfg.fcr.mode = L2CAP_FCR_BASIC_MODE;
+            L2CA_ConfigReq (l2cap_cid, &cfg);
+        }
+
+        SDP_TRACE_EVENT ("SDP - got conn cnf, sent cfg req, CID: 0x%x", p_ccb->connection_id);
+    }
+    else
+    {
+        SDP_TRACE_WARNING ("SDP - Rcvd conn cnf with error: 0x%x  CID 0x%x", result, p_ccb->connection_id);
+
+        /* Tell the user if he has a callback */
+        if (p_ccb->p_cb || p_ccb->p_cb2)
+        {
+            UINT16 err = -1;
+            if ((result == HCI_ERR_HOST_REJECT_SECURITY)
+             || (result == HCI_ERR_AUTH_FAILURE)
+             || (result == HCI_ERR_PAIRING_NOT_ALLOWED)
+             || (result == HCI_ERR_PAIRING_WITH_UNIT_KEY_NOT_SUPPORTED)
+             || (result == HCI_ERR_KEY_MISSING))
+                err = SDP_SECURITY_ERR;
+            else if (result == HCI_ERR_HOST_REJECT_DEVICE)
+                err = SDP_CONN_REJECTED;
+            else
+                err = SDP_CONN_FAILED;
+            if(p_ccb->p_cb)
+                (*p_ccb->p_cb)(err);
+            else if(p_ccb->p_cb2)
+                (*p_ccb->p_cb2)(err, p_ccb->user_data);
+
+        }
+        sdpu_release_ccb (p_ccb);
+    }
+}
+#endif  /* SDP_CLIENT_ENABLED == TRUE */
+
+
+/*******************************************************************************
+**
+** Function         sdp_config_ind
+**
+** Description      This function processes the L2CAP configuration indication
+**                  event.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void sdp_config_ind (UINT16 l2cap_cid, tL2CAP_CFG_INFO *p_cfg)
+{
+    tCONN_CB    *p_ccb;
+
+    /* Find CCB based on CID */
+    if ((p_ccb = sdpu_find_ccb_by_cid (l2cap_cid)) == NULL)
+    {
+        SDP_TRACE_WARNING ("SDP - Rcvd L2CAP cfg ind, unknown CID: 0x%x", l2cap_cid);
+        return;
+    }
+
+    /* Remember the remote MTU size */
+    if (!p_cfg->mtu_present)
+    {
+        /* use min(L2CAP_DEFAULT_MTU,SDP_MTU_SIZE) for GKI buffer size reasons */
+        p_ccb->rem_mtu_size = (L2CAP_DEFAULT_MTU > SDP_MTU_SIZE)?SDP_MTU_SIZE:L2CAP_DEFAULT_MTU;
+    }
+    else
+    {
+        if (p_cfg->mtu > SDP_MTU_SIZE)
+            p_ccb->rem_mtu_size = SDP_MTU_SIZE;
+        else
+            p_ccb->rem_mtu_size = p_cfg->mtu;
+    }
+
+    /* For now, always accept configuration from the other side */
+    p_cfg->flush_to_present = FALSE;
+    p_cfg->mtu_present      = FALSE;
+    p_cfg->result           = L2CAP_CFG_OK;
+
+    /* Check peer config request against our rfcomm configuration */
+    if (p_cfg->fcr_present)
+    {
+        /* Reject the window size if it is bigger than we want it to be */
+        if (p_cfg->fcr.mode != L2CAP_FCR_BASIC_MODE)
+        {
+            if (sdp_cb.l2cap_my_cfg.fcr.mode != L2CAP_FCR_BASIC_MODE
+                && p_cfg->fcr.tx_win_sz > sdp_cb.l2cap_my_cfg.fcr.tx_win_sz)
+            {
+                p_cfg->fcr.tx_win_sz = sdp_cb.l2cap_my_cfg.fcr.tx_win_sz;
+                p_cfg->result = L2CAP_CFG_UNACCEPTABLE_PARAMS;
+                SDP_TRACE_DEBUG("sdp_config_ind(CONFIG) -> Please try again with SMALLER TX WINDOW");
+            }
+
+            /* Reject if locally we want basic and they don't */
+            if (sdp_cb.l2cap_my_cfg.fcr.mode == L2CAP_FCR_BASIC_MODE)
+            {
+                /* Ask for a new setup */
+                p_cfg->fcr.mode = L2CAP_FCR_BASIC_MODE;
+                p_cfg->result = L2CAP_CFG_UNACCEPTABLE_PARAMS;
+                SDP_TRACE_DEBUG("sdp_config_ind(CONFIG) -> Please try again with BASIC mode");
+            }
+            /* Remain in configure state and give the peer our desired configuration */
+            if (p_cfg->result != L2CAP_CFG_OK)
+            {
+                SDP_TRACE_WARNING ("SDP - Rcvd cfg ind, Unacceptable Parameters sent cfg cfm, CID: 0x%x", l2cap_cid);
+                L2CA_ConfigRsp (l2cap_cid, p_cfg);
+                return;
+            }
+        }
+        else    /* We agree with peer's request */
+            p_cfg->fcr_present = FALSE;
+    }
+
+    L2CA_ConfigRsp (l2cap_cid, p_cfg);
+
+    SDP_TRACE_EVENT ("SDP - Rcvd cfg ind, sent cfg cfm, CID: 0x%x", l2cap_cid);
+
+    p_ccb->con_flags |= SDP_FLAGS_HIS_CFG_DONE;
+
+    if (p_ccb->con_flags & SDP_FLAGS_MY_CFG_DONE)
+    {
+        p_ccb->con_state = SDP_STATE_CONNECTED;
+
+        if (p_ccb->con_flags & SDP_FLAGS_IS_ORIG) {
+            sdp_disc_connected (p_ccb);
+        } else {
+            /* Start inactivity timer */
+            alarm_set_on_queue(p_ccb->sdp_conn_timer, SDP_INACT_TIMEOUT_MS,
+                               sdp_conn_timer_timeout, p_ccb,
+                               btu_general_alarm_queue);
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         sdp_config_cfm
+**
+** Description      This function processes the L2CAP configuration confirmation
+**                  event.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void sdp_config_cfm (UINT16 l2cap_cid, tL2CAP_CFG_INFO *p_cfg)
+{
+    tCONN_CB    *p_ccb;
+
+    SDP_TRACE_EVENT ("SDP - Rcvd cfg cfm, CID: 0x%x  Result: %d", l2cap_cid, p_cfg->result);
+
+    /* Find CCB based on CID */
+    if ((p_ccb = sdpu_find_ccb_by_cid (l2cap_cid)) == NULL)
+    {
+        SDP_TRACE_WARNING ("SDP - Rcvd L2CAP cfg ind, unknown CID: 0x%x", l2cap_cid);
+        return;
+    }
+
+    /* For now, always accept configuration from the other side */
+    if (p_cfg->result == L2CAP_CFG_OK)
+    {
+        p_ccb->con_flags |= SDP_FLAGS_MY_CFG_DONE;
+
+        if (p_ccb->con_flags & SDP_FLAGS_HIS_CFG_DONE)
+        {
+            p_ccb->con_state = SDP_STATE_CONNECTED;
+
+            if (p_ccb->con_flags & SDP_FLAGS_IS_ORIG) {
+                sdp_disc_connected (p_ccb);
+            } else {
+                /* Start inactivity timer */
+                alarm_set_on_queue(p_ccb->sdp_conn_timer, SDP_INACT_TIMEOUT_MS,
+                                   sdp_conn_timer_timeout, p_ccb,
+                                   btu_general_alarm_queue);
+            }
+        }
+    }
+    else
+    {
+        /* If peer has rejected FCR and suggested basic then try basic */
+        if (p_cfg->fcr_present)
+        {
+            tL2CAP_CFG_INFO cfg = sdp_cb.l2cap_my_cfg;
+            cfg.fcr_present = FALSE;
+            L2CA_ConfigReq (l2cap_cid, &cfg);
+
+            /* Remain in configure state */
+            return;
+        }
+
+#if SDP_CLIENT_ENABLED == TRUE
+        sdp_disconnect(p_ccb, SDP_CFG_FAILED);
+#endif
+    }
+}
+
+/*******************************************************************************
+**
+** Function         sdp_disconnect_ind
+**
+** Description      This function handles a disconnect event from L2CAP. If
+**                  requested to, we ack the disconnect before dropping the CCB
+**
+** Returns          void
+**
+*******************************************************************************/
+static void sdp_disconnect_ind (UINT16 l2cap_cid, BOOLEAN ack_needed)
+{
+    tCONN_CB    *p_ccb;
+
+    /* Find CCB based on CID */
+    if ((p_ccb = sdpu_find_ccb_by_cid (l2cap_cid)) == NULL)
+    {
+        SDP_TRACE_WARNING ("SDP - Rcvd L2CAP disc, unknown CID: 0x%x", l2cap_cid);
+        return;
+    }
+
+    if (ack_needed)
+        L2CA_DisconnectRsp (l2cap_cid);
+
+    SDP_TRACE_EVENT ("SDP - Rcvd L2CAP disc, CID: 0x%x", l2cap_cid);
+#if SDP_CLIENT_ENABLED == TRUE
+    /* Tell the user if he has a callback */
+    if (p_ccb->p_cb)
+        (*p_ccb->p_cb) ((UINT16) ((p_ccb->con_state == SDP_STATE_CONNECTED) ?
+                        SDP_SUCCESS : SDP_CONN_FAILED));
+    else if (p_ccb->p_cb2)
+        (*p_ccb->p_cb2) ((UINT16) ((p_ccb->con_state == SDP_STATE_CONNECTED) ?
+                        SDP_SUCCESS : SDP_CONN_FAILED), p_ccb->user_data);
+
+#endif
+    sdpu_release_ccb (p_ccb);
+}
+
+/*******************************************************************************
+**
+** Function         sdp_data_ind
+**
+** Description      This function is called when data is received from L2CAP.
+**                  if we are the originator of the connection, we are the SDP
+**                  client, and the received message is queued up for the client.
+**
+**                  If we are the destination of the connection, we are the SDP
+**                  server, so the message is passed to the server processing
+**                  function.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void sdp_data_ind (UINT16 l2cap_cid, BT_HDR *p_msg)
+{
+    tCONN_CB    *p_ccb;
+
+    /* Find CCB based on CID */
+    if ((p_ccb = sdpu_find_ccb_by_cid (l2cap_cid)) != NULL)
+    {
+        if (p_ccb->con_state == SDP_STATE_CONNECTED)
+        {
+            if (p_ccb->con_flags & SDP_FLAGS_IS_ORIG)
+                sdp_disc_server_rsp (p_ccb, p_msg);
+            else
+                sdp_server_handle_client_req (p_ccb, p_msg);
+        }
+        else
+        {
+            SDP_TRACE_WARNING ("SDP - Ignored L2CAP data while in state: %d, CID: 0x%x",
+                                p_ccb->con_state, l2cap_cid);
+        }
+    }
+    else
+    {
+        SDP_TRACE_WARNING ("SDP - Rcvd L2CAP data, unknown CID: 0x%x", l2cap_cid);
+    }
+
+    osi_free(p_msg);
+}
+
+
+#if SDP_CLIENT_ENABLED == TRUE
+/*******************************************************************************
+**
+** Function         sdp_conn_originate
+**
+** Description      This function is called from the API to originate a
+**                  connection.
+**
+** Returns          void
+**
+*******************************************************************************/
+tCONN_CB* sdp_conn_originate (UINT8 *p_bd_addr)
+{
+    tCONN_CB              *p_ccb;
+    UINT16                cid;
+
+    /* Allocate a new CCB. Return if none available. */
+    if ((p_ccb = sdpu_allocate_ccb()) == NULL)
+    {
+        SDP_TRACE_WARNING ("SDP - no spare CCB for orig");
+        return (NULL);
+    }
+
+    SDP_TRACE_EVENT ("SDP - Originate started");
+
+    /* We are the originator of this connection */
+    p_ccb->con_flags |= SDP_FLAGS_IS_ORIG;
+
+    /* Save the BD Address and Channel ID. */
+    memcpy (&p_ccb->device_address[0], p_bd_addr, sizeof (BD_ADDR));
+
+    /* Transition to the next appropriate state, waiting for connection confirm. */
+    p_ccb->con_state = SDP_STATE_CONN_SETUP;
+
+    cid = L2CA_ConnectReq (SDP_PSM, p_bd_addr);
+
+    /* Check if L2CAP started the connection process */
+    if (cid != 0)
+    {
+        p_ccb->connection_id = cid;
+
+        return (p_ccb);
+    }
+    else
+    {
+        SDP_TRACE_WARNING ("SDP - Originate failed");
+        sdpu_release_ccb (p_ccb);
+        return (NULL);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         sdp_disconnect
+**
+** Description      This function disconnects a connection.
+**
+** Returns          void
+**
+*******************************************************************************/
+void sdp_disconnect (tCONN_CB*p_ccb, UINT16 reason)
+{
+#if (defined(SDP_BROWSE_PLUS) && SDP_BROWSE_PLUS == TRUE)
+
+    /* If we are browsing for multiple UUIDs ... */
+    if ((p_ccb->con_state == SDP_STATE_CONNECTED)
+     && (p_ccb->con_flags & SDP_FLAGS_IS_ORIG)
+     && ((reason == SDP_SUCCESS) || (reason == SDP_NO_RECS_MATCH)))
+    {
+        /* If the browse found something, do no more searching */
+        if ((p_ccb->cur_uuid_idx == 0) && (p_ccb->p_db->p_first_rec))
+            p_ccb->cur_uuid_idx = p_ccb->p_db->num_uuid_filters;
+
+        while (++p_ccb->cur_uuid_idx < p_ccb->p_db->num_uuid_filters)
+        {
+            /* Check we have not already found the UUID (maybe through browse) */
+            if ((p_ccb->p_db->uuid_filters[p_ccb->cur_uuid_idx].len == 2)
+                && (SDP_FindServiceInDb (p_ccb->p_db,
+                        p_ccb->p_db->uuid_filters[p_ccb->cur_uuid_idx].uu.uuid16,
+                        NULL)))
+                continue;
+
+            if ((p_ccb->p_db->uuid_filters[p_ccb->cur_uuid_idx].len > 2)
+                && (SDP_FindServiceUUIDInDb (p_ccb->p_db,
+                        &p_ccb->p_db->uuid_filters[p_ccb->cur_uuid_idx], NULL)))
+                continue;
+
+            p_ccb->cur_handle = 0;
+
+            SDP_TRACE_EVENT ("SDP - looking for for more,  CID: 0x%x",
+                              p_ccb->connection_id);
+
+            sdp_disc_connected (p_ccb);
+            return;
+        }
+    }
+
+    if ((reason == SDP_NO_RECS_MATCH) && (p_ccb->p_db->p_first_rec))
+        reason = SDP_SUCCESS;
+
+#endif
+
+    SDP_TRACE_EVENT ("SDP - disconnect  CID: 0x%x", p_ccb->connection_id);
+
+    /* Check if we have a connection ID */
+    if (p_ccb->connection_id != 0)
+    {
+        L2CA_DisconnectReq (p_ccb->connection_id);
+        p_ccb->disconnect_reason = reason;
+    }
+
+    /* If at setup state, we may not get callback ind from L2CAP */
+    /* Call user callback immediately */
+    if (p_ccb->con_state == SDP_STATE_CONN_SETUP)
+    {
+        /* Tell the user if he has a callback */
+        if (p_ccb->p_cb)
+            (*p_ccb->p_cb) (reason);
+        else if (p_ccb->p_cb2)
+            (*p_ccb->p_cb2) (reason, p_ccb->user_data);
+
+        sdpu_release_ccb (p_ccb);
+    }
+
+}
+
+/*******************************************************************************
+**
+** Function         sdp_disconnect_cfm
+**
+** Description      This function handles a disconnect confirm event from L2CAP.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void sdp_disconnect_cfm (UINT16 l2cap_cid, UINT16 result)
+{
+    tCONN_CB    *p_ccb;
+    UNUSED(result);
+
+    /* Find CCB based on CID */
+    if ((p_ccb = sdpu_find_ccb_by_cid (l2cap_cid)) == NULL)
+    {
+        SDP_TRACE_WARNING ("SDP - Rcvd L2CAP disc cfm, unknown CID: 0x%x", l2cap_cid);
+        return;
+    }
+
+    SDP_TRACE_EVENT ("SDP - Rcvd L2CAP disc cfm, CID: 0x%x", l2cap_cid);
+
+    /* Tell the user if he has a callback */
+    if (p_ccb->p_cb)
+        (*p_ccb->p_cb) (p_ccb->disconnect_reason);
+    else if (p_ccb->p_cb2)
+        (*p_ccb->p_cb2) (p_ccb->disconnect_reason, p_ccb->user_data);
+
+
+    sdpu_release_ccb (p_ccb);
+}
+
+#endif  /* SDP_CLIENT_ENABLED == TRUE */
+
+/*******************************************************************************
+**
+** Function         sdp_conn_timer_timeout
+**
+** Description      This function processes a timeout. Currently, we simply send
+**                  a disconnect request to L2CAP.
+**
+** Returns          void
+**
+*******************************************************************************/
+void sdp_conn_timer_timeout(void *data)
+{
+    tCONN_CB *p_ccb = (tCONN_CB *)data;
+
+    SDP_TRACE_EVENT ("SDP - CCB timeout in state: %d  CID: 0x%x",
+                      p_ccb->con_state, p_ccb->connection_id);
+
+    L2CA_DisconnectReq (p_ccb->connection_id);
+#if SDP_CLIENT_ENABLED == TRUE
+    /* Tell the user if he has a callback */
+    if (p_ccb->p_cb)
+        (*p_ccb->p_cb) (SDP_CONN_FAILED);
+    else if (p_ccb->p_cb2)
+        (*p_ccb->p_cb2) (SDP_CONN_FAILED, p_ccb->user_data);
+#endif
+    sdpu_release_ccb (p_ccb);
+}
+
+
+
+
diff --git a/rtkbt/code/bt/stack/sdp/sdp_server.c b/rtkbt/code/bt/stack/sdp/sdp_server.c
new file mode 100755
index 0000000..627f4cf
--- /dev/null
+++ b/rtkbt/code/bt/stack/sdp/sdp_server.c
@@ -0,0 +1,830 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains functions that handle the SDP server functions.
+ *  This is mainly dealing with client requests
+ *
+ ******************************************************************************/
+
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+
+#include "bt_common.h"
+#include "bt_types.h"
+#include "bt_utils.h"
+#include "btu.h"
+
+#include "l2cdefs.h"
+#include "hcidefs.h"
+#include "hcimsgs.h"
+
+#include "sdp_api.h"
+#include "sdpint.h"
+
+
+#if SDP_SERVER_ENABLED == TRUE
+
+extern fixed_queue_t *btu_general_alarm_queue;
+
+/* Maximum number of bytes to reserve out of SDP MTU for response data */
+#define SDP_MAX_SERVICE_RSPHDR_LEN      12
+#define SDP_MAX_SERVATTR_RSPHDR_LEN     10
+#define SDP_MAX_ATTR_RSPHDR_LEN         10
+
+/********************************************************************************/
+/*              L O C A L    F U N C T I O N     P R O T O T Y P E S            */
+/********************************************************************************/
+static void process_service_search (tCONN_CB *p_ccb, UINT16 trans_num,
+                                    UINT16 param_len, UINT8 *p_req,
+                                    UINT8 *p_req_end);
+
+static void process_service_attr_req (tCONN_CB *p_ccb, UINT16 trans_num,
+                                      UINT16 param_len, UINT8 *p_req,
+                                      UINT8 *p_req_end);
+
+static void process_service_search_attr_req (tCONN_CB *p_ccb, UINT16 trans_num,
+                                             UINT16 param_len, UINT8 *p_req,
+                                             UINT8 *p_req_end);
+
+
+/********************************************************************************/
+/*                  E R R O R   T E X T   S T R I N G S                         */
+/*                                                                              */
+/* The default is to have no text string, but we allow the strings to be        */
+/* configured in target.h if people want them.                                  */
+/********************************************************************************/
+#ifndef SDP_TEXT_BAD_HEADER
+#define SDP_TEXT_BAD_HEADER     NULL
+#endif
+
+#ifndef SDP_TEXT_BAD_PDU
+#define SDP_TEXT_BAD_PDU        NULL
+#endif
+
+#ifndef SDP_TEXT_BAD_UUID_LIST
+#define SDP_TEXT_BAD_UUID_LIST  NULL
+#endif
+
+#ifndef SDP_TEXT_BAD_HANDLE
+#define SDP_TEXT_BAD_HANDLE     NULL
+#endif
+
+#ifndef SDP_TEXT_BAD_ATTR_LIST
+#define SDP_TEXT_BAD_ATTR_LIST  NULL
+#endif
+
+#ifndef SDP_TEXT_BAD_CONT_LEN
+#define SDP_TEXT_BAD_CONT_LEN   NULL
+#endif
+
+#ifndef SDP_TEXT_BAD_CONT_INX
+#define SDP_TEXT_BAD_CONT_INX   NULL
+#endif
+
+#ifndef SDP_TEXT_BAD_MAX_RECORDS_LIST
+#define SDP_TEXT_BAD_MAX_RECORDS_LIST   NULL
+#endif
+
+/*******************************************************************************
+**
+** Function         sdp_server_handle_client_req
+**
+** Description      This is the main dispatcher of the SDP server. It is called
+**                  when any data is received from L2CAP, and dispatches the
+**                  request to the appropriate handler.
+**
+** Returns          void
+**
+*******************************************************************************/
+void sdp_server_handle_client_req (tCONN_CB *p_ccb, BT_HDR *p_msg)
+{
+    UINT8   *p_req     = (UINT8 *) (p_msg + 1) + p_msg->offset;
+    UINT8   *p_req_end = p_req + p_msg->len;
+    UINT8   pdu_id;
+    UINT16  trans_num, param_len;
+
+
+    /* Start inactivity timer */
+    alarm_set_on_queue(p_ccb->sdp_conn_timer, SDP_INACT_TIMEOUT_MS,
+                       sdp_conn_timer_timeout, p_ccb, btu_general_alarm_queue);
+
+    /* The first byte in the message is the pdu type */
+    pdu_id = *p_req++;
+
+    /* Extract the transaction number and parameter length */
+    BE_STREAM_TO_UINT16 (trans_num, p_req);
+    BE_STREAM_TO_UINT16 (param_len, p_req);
+
+    if ((p_req + param_len) != p_req_end)
+    {
+        sdpu_build_n_send_error (p_ccb, trans_num, SDP_INVALID_PDU_SIZE, SDP_TEXT_BAD_HEADER);
+        return;
+    }
+
+    switch (pdu_id)
+    {
+    case SDP_PDU_SERVICE_SEARCH_REQ:
+        process_service_search (p_ccb, trans_num, param_len, p_req, p_req_end);
+        break;
+
+    case SDP_PDU_SERVICE_ATTR_REQ:
+        process_service_attr_req (p_ccb, trans_num, param_len, p_req, p_req_end);
+        break;
+
+    case SDP_PDU_SERVICE_SEARCH_ATTR_REQ:
+        process_service_search_attr_req (p_ccb, trans_num, param_len, p_req, p_req_end);
+        break;
+
+    default:
+        sdpu_build_n_send_error (p_ccb, trans_num, SDP_INVALID_REQ_SYNTAX, SDP_TEXT_BAD_PDU);
+        SDP_TRACE_WARNING ("SDP - server got unknown PDU: 0x%x", pdu_id);
+        break;
+    }
+}
+
+
+
+/*******************************************************************************
+**
+** Function         process_service_search
+**
+** Description      This function handles a service search request from the
+**                  client. It builds a reply message with info from the database,
+**                  and sends the reply back to the client.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void process_service_search (tCONN_CB *p_ccb, UINT16 trans_num,
+                                    UINT16 param_len, UINT8 *p_req,
+                                    UINT8 *p_req_end)
+{
+    UINT16          max_replies, cur_handles, rem_handles, cont_offset;
+    tSDP_UUID_SEQ   uid_seq;
+    UINT8           *p_rsp, *p_rsp_start, *p_rsp_param_len;
+    UINT16          rsp_param_len, num_rsp_handles, xx;
+    UINT32          rsp_handles[SDP_MAX_RECORDS] = {0};
+    tSDP_RECORD    *p_rec = NULL;
+    BOOLEAN         is_cont = FALSE;
+    UNUSED(p_req_end);
+
+    p_req = sdpu_extract_uid_seq (p_req, param_len, &uid_seq);
+
+    if ((!p_req) || (!uid_seq.num_uids))
+    {
+        sdpu_build_n_send_error (p_ccb, trans_num, SDP_INVALID_REQ_SYNTAX, SDP_TEXT_BAD_UUID_LIST);
+        return;
+    }
+
+    /* Get the max replies we can send. Cap it at our max anyways. */
+    BE_STREAM_TO_UINT16 (max_replies, p_req);
+
+    if (max_replies > SDP_MAX_RECORDS)
+        max_replies = SDP_MAX_RECORDS;
+
+
+    if ((!p_req) || (p_req > p_req_end))
+    {
+        sdpu_build_n_send_error (p_ccb, trans_num, SDP_INVALID_REQ_SYNTAX, SDP_TEXT_BAD_MAX_RECORDS_LIST);
+        return;
+    }
+
+
+    /* Get a list of handles that match the UUIDs given to us */
+    for (num_rsp_handles = 0; num_rsp_handles < max_replies; )
+    {
+        p_rec = sdp_db_service_search (p_rec, &uid_seq);
+
+        if (p_rec)
+            rsp_handles[num_rsp_handles++] = p_rec->record_handle;
+        else
+            break;
+    }
+
+    /* Check if this is a continuation request */
+    if (*p_req)
+    {
+        if (*p_req++ != SDP_CONTINUATION_LEN || (p_req >= p_req_end))
+        {
+            sdpu_build_n_send_error (p_ccb, trans_num, SDP_INVALID_CONT_STATE,
+                                     SDP_TEXT_BAD_CONT_LEN);
+            return;
+        }
+        BE_STREAM_TO_UINT16 (cont_offset, p_req);
+
+        if (cont_offset != p_ccb->cont_offset)
+        {
+            sdpu_build_n_send_error (p_ccb, trans_num, SDP_INVALID_CONT_STATE,
+                                     SDP_TEXT_BAD_CONT_INX);
+            return;
+        }
+
+        rem_handles = num_rsp_handles - cont_offset;    /* extract the remaining handles */
+    }
+    else
+    {
+        rem_handles = num_rsp_handles;
+        cont_offset = 0;
+        p_ccb->cont_offset = 0;
+    }
+
+    /* Calculate how many handles will fit in one PDU */
+    cur_handles = (UINT16)((p_ccb->rem_mtu_size - SDP_MAX_SERVICE_RSPHDR_LEN) / 4);
+
+    if (rem_handles <= cur_handles)
+        cur_handles = rem_handles;
+    else /* Continuation is set */
+    {
+        p_ccb->cont_offset += cur_handles;
+        is_cont = TRUE;
+    }
+
+    /* Get a buffer to use to build the response */
+    BT_HDR *p_buf = (BT_HDR *)osi_malloc(SDP_DATA_BUF_SIZE);
+    p_buf->offset = L2CAP_MIN_OFFSET;
+    p_rsp = p_rsp_start = (UINT8 *)(p_buf + 1) + L2CAP_MIN_OFFSET;
+
+    /* Start building a rsponse */
+    UINT8_TO_BE_STREAM  (p_rsp, SDP_PDU_SERVICE_SEARCH_RSP);
+    UINT16_TO_BE_STREAM (p_rsp, trans_num);
+
+    /* Skip the length, we need to add it at the end */
+    p_rsp_param_len = p_rsp;
+    p_rsp += 2;
+
+    /* Put in total and current number of handles, and handles themselves */
+    UINT16_TO_BE_STREAM (p_rsp, num_rsp_handles);
+    UINT16_TO_BE_STREAM (p_rsp, cur_handles);
+
+/*    SDP_TRACE_DEBUG("SDP Service Rsp: tothdl %d, curhdlr %d, start %d, end %d, cont %d",
+                     num_rsp_handles, cur_handles, cont_offset,
+                     cont_offset + cur_handles-1, is_cont); */
+    for (xx = cont_offset; xx < cont_offset + cur_handles; xx++)
+        UINT32_TO_BE_STREAM (p_rsp, rsp_handles[xx]);
+
+    if (is_cont)
+    {
+        UINT8_TO_BE_STREAM  (p_rsp, SDP_CONTINUATION_LEN);
+        UINT16_TO_BE_STREAM (p_rsp, p_ccb->cont_offset);
+    }
+    else
+        UINT8_TO_BE_STREAM (p_rsp, 0);
+
+    /* Go back and put the parameter length into the buffer */
+    rsp_param_len = p_rsp - p_rsp_param_len - 2;
+    UINT16_TO_BE_STREAM (p_rsp_param_len, rsp_param_len);
+
+    /* Set the length of the SDP data in the buffer */
+    p_buf->len = p_rsp - p_rsp_start;
+
+
+    /* Send the buffer through L2CAP */
+    L2CA_DataWrite (p_ccb->connection_id, p_buf);
+}
+
+
+/*******************************************************************************
+**
+** Function         process_service_attr_req
+**
+** Description      This function handles an attribute request from the client.
+**                  It builds a reply message with info from the database,
+**                  and sends the reply back to the client.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void process_service_attr_req (tCONN_CB *p_ccb, UINT16 trans_num,
+                                      UINT16 param_len, UINT8 *p_req,
+                                      UINT8 *p_req_end)
+{
+    UINT16          max_list_len, len_to_send, cont_offset;
+    INT16           rem_len;
+    tSDP_ATTR_SEQ   attr_seq, attr_seq_sav;
+    UINT8           *p_rsp, *p_rsp_start, *p_rsp_param_len;
+    UINT16          rsp_param_len, xx;
+    UINT32          rec_handle;
+    tSDP_RECORD     *p_rec;
+    tSDP_ATTRIBUTE  *p_attr;
+    BOOLEAN         is_cont = FALSE;
+    UINT16          attr_len;
+
+    /* Extract the record handle */
+    BE_STREAM_TO_UINT32 (rec_handle, p_req);
+
+    if (p_req > p_req_end)
+    {
+        sdpu_build_n_send_error (p_ccb, trans_num, SDP_INVALID_SERV_REC_HDL, SDP_TEXT_BAD_HANDLE);
+        return;
+    }
+
+    /* Get the max list length we can send. Cap it at MTU size minus overhead */
+    BE_STREAM_TO_UINT16 (max_list_len, p_req);
+
+    if (max_list_len > (p_ccb->rem_mtu_size - SDP_MAX_ATTR_RSPHDR_LEN))
+        max_list_len = p_ccb->rem_mtu_size - SDP_MAX_ATTR_RSPHDR_LEN;
+
+    p_req = sdpu_extract_attr_seq (p_req, param_len, &attr_seq);
+
+    if ((!p_req) || (!attr_seq.num_attr) || (p_req > p_req_end))
+    {
+        sdpu_build_n_send_error (p_ccb, trans_num, SDP_INVALID_REQ_SYNTAX, SDP_TEXT_BAD_ATTR_LIST);
+        return;
+    }
+
+    memcpy(&attr_seq_sav, &attr_seq, sizeof(tSDP_ATTR_SEQ)) ;
+
+    /* Find a record with the record handle */
+    p_rec = sdp_db_find_record (rec_handle);
+    if (!p_rec)
+    {
+        sdpu_build_n_send_error (p_ccb, trans_num, SDP_INVALID_SERV_REC_HDL, SDP_TEXT_BAD_HANDLE);
+        return;
+    }
+
+    /* Free and reallocate buffer */
+    osi_free(p_ccb->rsp_list);
+    p_ccb->rsp_list = (UINT8 *)osi_malloc(max_list_len);
+
+    /* Check if this is a continuation request */
+    if (*p_req) {
+        if (*p_req++ != SDP_CONTINUATION_LEN) {
+            sdpu_build_n_send_error(p_ccb, trans_num, SDP_INVALID_CONT_STATE,
+                                    SDP_TEXT_BAD_CONT_LEN);
+            return;
+        }
+        BE_STREAM_TO_UINT16(cont_offset, p_req);
+
+        if (cont_offset != p_ccb->cont_offset) {
+            sdpu_build_n_send_error(p_ccb, trans_num, SDP_INVALID_CONT_STATE,
+                                    SDP_TEXT_BAD_CONT_INX);
+            return;
+        }
+        is_cont = TRUE;
+
+        /* Initialise for continuation response */
+        p_rsp = &p_ccb->rsp_list[0];
+        attr_seq.attr_entry[p_ccb->cont_info.next_attr_index].start =
+            p_ccb->cont_info.next_attr_start_id;
+    } else {
+        p_ccb->cont_offset = 0;
+        p_rsp = &p_ccb->rsp_list[3];    /* Leave space for data elem descr */
+
+        /* Reset continuation parameters in p_ccb */
+        p_ccb->cont_info.prev_sdp_rec = NULL;
+        p_ccb->cont_info.next_attr_index = 0;
+        p_ccb->cont_info.attr_offset = 0;
+    }
+
+    /* Search for attributes that match the list given to us */
+    for (xx = p_ccb->cont_info.next_attr_index; xx < attr_seq.num_attr; xx++)
+    {
+        p_attr = sdp_db_find_attr_in_rec (p_rec, attr_seq.attr_entry[xx].start, attr_seq.attr_entry[xx].end);
+
+        if (p_attr)
+        {
+            /* Check if attribute fits. Assume 3-byte value type/length */
+            rem_len = max_list_len - (INT16) (p_rsp - &p_ccb->rsp_list[0]);
+
+            /* just in case */
+            if (rem_len <= 0)
+            {
+                p_ccb->cont_info.next_attr_index = xx;
+                p_ccb->cont_info.next_attr_start_id = p_attr->id;
+                break;
+            }
+
+            attr_len = sdpu_get_attrib_entry_len(p_attr);
+            /* if there is a partial attribute pending to be sent */
+            if (p_ccb->cont_info.attr_offset)
+            {
+                p_rsp = sdpu_build_partial_attrib_entry (p_rsp, p_attr, rem_len,
+                                                         &p_ccb->cont_info.attr_offset);
+
+                /* If the partial attrib could not been fully added yet */
+                if (p_ccb->cont_info.attr_offset != attr_len)
+                    break;
+                else /* If the partial attrib has been added in full by now */
+                    p_ccb->cont_info.attr_offset = 0; /* reset attr_offset */
+            }
+            else if (rem_len < attr_len) /* Not enough space for attr... so add partially */
+            {
+                if (attr_len >= SDP_MAX_ATTR_LEN)
+                {
+                    SDP_TRACE_ERROR("SDP attr too big: max_list_len=%d,attr_len=%d", max_list_len, attr_len);
+                    sdpu_build_n_send_error (p_ccb, trans_num, SDP_NO_RESOURCES, NULL);
+                    return;
+                }
+
+                /* add the partial attribute if possible */
+                p_rsp = sdpu_build_partial_attrib_entry (p_rsp, p_attr, (UINT16)rem_len,
+                                                         &p_ccb->cont_info.attr_offset);
+
+                p_ccb->cont_info.next_attr_index = xx;
+                p_ccb->cont_info.next_attr_start_id = p_attr->id;
+                break;
+            }
+            else /* build the whole attribute */
+                p_rsp = sdpu_build_attrib_entry (p_rsp, p_attr);
+
+            /* If doing a range, stick with this one till no more attributes found */
+            if (attr_seq.attr_entry[xx].start != attr_seq.attr_entry[xx].end)
+            {
+                /* Update for next time through */
+                attr_seq.attr_entry[xx].start = p_attr->id + 1;
+
+                xx--;
+            }
+        }
+    }
+    /* If all the attributes have been accomodated in p_rsp,
+       reset next_attr_index */
+    if (xx == attr_seq.num_attr)
+        p_ccb->cont_info.next_attr_index = 0;
+
+    len_to_send = (UINT16) (p_rsp - &p_ccb->rsp_list[0]);
+    cont_offset = 0;
+
+    if (!is_cont)
+    {
+        p_ccb->list_len = sdpu_get_attrib_seq_len(p_rec, &attr_seq_sav) + 3;
+        /* Put in the sequence header (2 or 3 bytes) */
+        if (p_ccb->list_len > 255)
+        {
+            p_ccb->rsp_list[0] = (UINT8) ((DATA_ELE_SEQ_DESC_TYPE << 3) | SIZE_IN_NEXT_WORD);
+            p_ccb->rsp_list[1] = (UINT8) ((p_ccb->list_len - 3) >> 8);
+            p_ccb->rsp_list[2] = (UINT8) (p_ccb->list_len - 3);
+        }
+        else
+        {
+            cont_offset = 1;
+
+            p_ccb->rsp_list[1] = (UINT8) ((DATA_ELE_SEQ_DESC_TYPE << 3) | SIZE_IN_NEXT_BYTE);
+            p_ccb->rsp_list[2] = (UINT8) (p_ccb->list_len - 3);
+
+            p_ccb->list_len--;
+            len_to_send--;
+        }
+    }
+
+    /* Get a buffer to use to build the response */
+    BT_HDR *p_buf = (BT_HDR *)osi_malloc(SDP_DATA_BUF_SIZE);
+    p_buf->offset = L2CAP_MIN_OFFSET;
+    p_rsp = p_rsp_start = (UINT8 *)(p_buf + 1) + L2CAP_MIN_OFFSET;
+
+    /* Start building a rsponse */
+    UINT8_TO_BE_STREAM  (p_rsp, SDP_PDU_SERVICE_ATTR_RSP);
+    UINT16_TO_BE_STREAM (p_rsp, trans_num);
+
+    /* Skip the parameter length, add it when we know the length */
+    p_rsp_param_len = p_rsp;
+    p_rsp += 2;
+
+    UINT16_TO_BE_STREAM (p_rsp, len_to_send);
+
+    memcpy (p_rsp, &p_ccb->rsp_list[cont_offset], len_to_send);
+    p_rsp += len_to_send;
+
+    p_ccb->cont_offset += len_to_send;
+
+    /* If anything left to send, continuation needed */
+    if (p_ccb->cont_offset < p_ccb->list_len)
+    {
+        is_cont = TRUE;
+
+        UINT8_TO_BE_STREAM  (p_rsp, SDP_CONTINUATION_LEN);
+        UINT16_TO_BE_STREAM (p_rsp, p_ccb->cont_offset);
+    }
+    else
+        UINT8_TO_BE_STREAM (p_rsp, 0);
+
+    /* Go back and put the parameter length into the buffer */
+    rsp_param_len = p_rsp - p_rsp_param_len - 2;
+    UINT16_TO_BE_STREAM (p_rsp_param_len, rsp_param_len);
+
+    /* Set the length of the SDP data in the buffer */
+    p_buf->len = p_rsp - p_rsp_start;
+
+
+    /* Send the buffer through L2CAP */
+    L2CA_DataWrite (p_ccb->connection_id, p_buf);
+}
+
+
+
+/*******************************************************************************
+**
+** Function         process_service_search_attr_req
+**
+** Description      This function handles a combined service search and attribute
+**                  read request from the client. It builds a reply message with
+**                  info from the database, and sends the reply back to the client.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void process_service_search_attr_req (tCONN_CB *p_ccb, UINT16 trans_num,
+                                             UINT16 param_len, UINT8 *p_req,
+                                             UINT8 *p_req_end)
+{
+    UINT16         max_list_len;
+    INT16          rem_len;
+    UINT16         len_to_send, cont_offset;
+    tSDP_UUID_SEQ   uid_seq;
+    UINT8           *p_rsp, *p_rsp_start, *p_rsp_param_len;
+    UINT16          rsp_param_len, xx;
+    tSDP_RECORD    *p_rec;
+    tSDP_ATTR_SEQ   attr_seq, attr_seq_sav;
+    tSDP_ATTRIBUTE *p_attr;
+    BOOLEAN         maxxed_out = FALSE, is_cont = FALSE;
+    UINT8           *p_seq_start;
+    UINT16          seq_len, attr_len;
+    UNUSED(p_req_end);
+
+    /* Extract the UUID sequence to search for */
+    p_req = sdpu_extract_uid_seq (p_req, param_len, &uid_seq);
+
+    if ((!p_req) || (!uid_seq.num_uids))
+    {
+        sdpu_build_n_send_error (p_ccb, trans_num, SDP_INVALID_REQ_SYNTAX, SDP_TEXT_BAD_UUID_LIST);
+        return;
+    }
+
+    /* Get the max list length we can send. Cap it at our max list length. */
+    BE_STREAM_TO_UINT16 (max_list_len, p_req);
+
+    if (max_list_len > (p_ccb->rem_mtu_size - SDP_MAX_SERVATTR_RSPHDR_LEN))
+        max_list_len = p_ccb->rem_mtu_size - SDP_MAX_SERVATTR_RSPHDR_LEN;
+
+    p_req = sdpu_extract_attr_seq (p_req, param_len, &attr_seq);
+
+    if ((!p_req) || (!attr_seq.num_attr))
+    {
+        sdpu_build_n_send_error (p_ccb, trans_num, SDP_INVALID_REQ_SYNTAX, SDP_TEXT_BAD_ATTR_LIST);
+        return;
+    }
+
+    memcpy(&attr_seq_sav, &attr_seq, sizeof(tSDP_ATTR_SEQ)) ;
+
+    /* Free and reallocate buffer */
+    osi_free(p_ccb->rsp_list);
+    p_ccb->rsp_list = (UINT8 *)osi_malloc(max_list_len);
+
+    /* Check if this is a continuation request */
+    if (*p_req) {
+        if (*p_req++ != SDP_CONTINUATION_LEN) {
+            sdpu_build_n_send_error(p_ccb, trans_num, SDP_INVALID_CONT_STATE,
+                                    SDP_TEXT_BAD_CONT_LEN);
+            return;
+        }
+        BE_STREAM_TO_UINT16(cont_offset, p_req);
+
+        if (cont_offset != p_ccb->cont_offset) {
+            sdpu_build_n_send_error (p_ccb, trans_num, SDP_INVALID_CONT_STATE,
+                                     SDP_TEXT_BAD_CONT_INX);
+            return;
+        }
+        is_cont = TRUE;
+
+        /* Initialise for continuation response */
+        p_rsp = &p_ccb->rsp_list[0];
+        attr_seq.attr_entry[p_ccb->cont_info.next_attr_index].start =
+            p_ccb->cont_info.next_attr_start_id;
+    } else {
+        p_ccb->cont_offset = 0;
+        p_rsp = &p_ccb->rsp_list[3];    /* Leave space for data elem descr */
+
+        /* Reset continuation parameters in p_ccb */
+        p_ccb->cont_info.prev_sdp_rec = NULL;
+        p_ccb->cont_info.next_attr_index = 0;
+        p_ccb->cont_info.last_attr_seq_desc_sent = FALSE;
+        p_ccb->cont_info.attr_offset = 0;
+    }
+
+    /* Get a list of handles that match the UUIDs given to us */
+    for (p_rec = sdp_db_service_search (p_ccb->cont_info.prev_sdp_rec, &uid_seq); p_rec; p_rec = sdp_db_service_search (p_rec, &uid_seq))
+    {
+        /* Allow space for attribute sequence type and length */
+        p_seq_start = p_rsp;
+        if (p_ccb->cont_info.last_attr_seq_desc_sent == FALSE)
+        {
+            /* See if there is enough room to include a new service in the current response */
+            rem_len = max_list_len - (INT16) (p_rsp - &p_ccb->rsp_list[0]);
+            if (rem_len < 3)
+            {
+                /* Not enough room. Update continuation info for next response */
+                p_ccb->cont_info.next_attr_index = 0;
+                p_ccb->cont_info.next_attr_start_id = attr_seq.attr_entry[0].start;
+                break;
+            }
+            p_rsp += 3;
+        }
+
+        /* Get a list of handles that match the UUIDs given to us */
+        for (xx = p_ccb->cont_info.next_attr_index; xx < attr_seq.num_attr; xx++)
+        {
+            p_attr = sdp_db_find_attr_in_rec (p_rec, attr_seq.attr_entry[xx].start, attr_seq.attr_entry[xx].end);
+
+            if (p_attr)
+            {
+                /* Check if attribute fits. Assume 3-byte value type/length */
+                rem_len = max_list_len - (INT16) (p_rsp - &p_ccb->rsp_list[0]);
+
+                /* just in case */
+                if (rem_len <= 0)
+                {
+                    p_ccb->cont_info.next_attr_index = xx;
+                    p_ccb->cont_info.next_attr_start_id = p_attr->id;
+                    maxxed_out = TRUE;
+                    break;
+                }
+
+                attr_len = sdpu_get_attrib_entry_len(p_attr);
+                /* if there is a partial attribute pending to be sent */
+                if (p_ccb->cont_info.attr_offset)
+                {
+                    p_rsp = sdpu_build_partial_attrib_entry (p_rsp, p_attr, rem_len,
+                                                             &p_ccb->cont_info.attr_offset);
+
+                    /* If the partial attrib could not been fully added yet */
+                    if (p_ccb->cont_info.attr_offset != attr_len)
+                    {
+                        maxxed_out = TRUE;
+                        break;
+                    }
+                    else /* If the partial attrib has been added in full by now */
+                        p_ccb->cont_info.attr_offset = 0; /* reset attr_offset */
+                }
+                else if (rem_len < attr_len) /* Not enough space for attr... so add partially */
+                {
+                    if (attr_len >= SDP_MAX_ATTR_LEN)
+                    {
+                        SDP_TRACE_ERROR("SDP attr too big: max_list_len=%d,attr_len=%d", max_list_len, attr_len);
+                        sdpu_build_n_send_error (p_ccb, trans_num, SDP_NO_RESOURCES, NULL);
+                        return;
+                    }
+
+                    /* add the partial attribute if possible */
+                    p_rsp = sdpu_build_partial_attrib_entry (p_rsp, p_attr, (UINT16)rem_len,
+                                                             &p_ccb->cont_info.attr_offset);
+
+                    p_ccb->cont_info.next_attr_index = xx;
+                    p_ccb->cont_info.next_attr_start_id = p_attr->id;
+                    maxxed_out = TRUE;
+                    break;
+                }
+                else /* build the whole attribute */
+                    p_rsp = sdpu_build_attrib_entry (p_rsp, p_attr);
+
+                /* If doing a range, stick with this one till no more attributes found */
+                if (attr_seq.attr_entry[xx].start != attr_seq.attr_entry[xx].end)
+                {
+                    /* Update for next time through */
+                    attr_seq.attr_entry[xx].start = p_attr->id + 1;
+
+                    xx--;
+                }
+            }
+        }
+
+        /* Go back and put the type and length into the buffer */
+        if (p_ccb->cont_info.last_attr_seq_desc_sent == FALSE)
+        {
+            seq_len = sdpu_get_attrib_seq_len(p_rec, &attr_seq_sav);
+            if (seq_len != 0)
+            {
+                UINT8_TO_BE_STREAM  (p_seq_start, (DATA_ELE_SEQ_DESC_TYPE << 3) | SIZE_IN_NEXT_WORD);
+                UINT16_TO_BE_STREAM (p_seq_start, seq_len);
+
+                if (maxxed_out)
+                    p_ccb->cont_info.last_attr_seq_desc_sent = TRUE;
+            }
+            else
+                p_rsp = p_seq_start;
+        }
+
+        if (maxxed_out)
+            break;
+
+        /* Restore the attr_seq to look for in the next sdp record */
+        memcpy(&attr_seq, &attr_seq_sav, sizeof(tSDP_ATTR_SEQ)) ;
+
+        /* Reset the next attr index */
+        p_ccb->cont_info.next_attr_index = 0;
+        p_ccb->cont_info.prev_sdp_rec = p_rec;
+        p_ccb->cont_info.last_attr_seq_desc_sent = FALSE;
+    }
+
+    /* response length */
+    len_to_send = (UINT16) (p_rsp - &p_ccb->rsp_list[0]);
+    cont_offset = 0;
+
+    // The current SDP server design has a critical flaw where it can run into an infinite
+    // request/response loop with the client. Here's the scenario:
+    // - client makes SDP request
+    // - server returns the first fragment of the response with a continuation token
+    // - an SDP record is deleted from the server
+    // - client issues another request with previous continuation token
+    // - server has nothing to send back because the record is unavailable but in the
+    //   first fragment, it had specified more response bytes than are now available
+    // - server sends back no additional response bytes and returns the same continuation token
+    // - client issues another request with the continuation token, and the process repeats
+    //
+    // We work around this design flaw here by checking if we will make forward progress
+    // (i.e. we will send > 0 response bytes) on a continued request. If not, we must have
+    // run into the above situation and we tell the peer an error occurred.
+    //
+    // TODO(sharvil): rewrite SDP server.
+    if (is_cont && len_to_send == 0) {
+      sdpu_build_n_send_error(p_ccb, trans_num, SDP_INVALID_CONT_STATE, NULL);
+      return;
+    }
+
+    /* If first response, insert sequence header */
+    if (!is_cont)
+    {
+        /* Get the total list length for requested uid and attribute sequence */
+        p_ccb->list_len = sdpu_get_list_len(&uid_seq, &attr_seq_sav) + 3;
+        /* Put in the sequence header (2 or 3 bytes) */
+        if (p_ccb->list_len > 255)
+        {
+            p_ccb->rsp_list[0] = (UINT8) ((DATA_ELE_SEQ_DESC_TYPE << 3) | SIZE_IN_NEXT_WORD);
+            p_ccb->rsp_list[1] = (UINT8) ((p_ccb->list_len - 3) >> 8);
+            p_ccb->rsp_list[2] = (UINT8) (p_ccb->list_len - 3);
+        }
+        else
+        {
+            cont_offset = 1;
+
+            p_ccb->rsp_list[1] = (UINT8) ((DATA_ELE_SEQ_DESC_TYPE << 3) | SIZE_IN_NEXT_BYTE);
+            p_ccb->rsp_list[2] = (UINT8) (p_ccb->list_len - 3);
+
+            p_ccb->list_len--;
+            len_to_send--;
+        }
+    }
+
+    /* Get a buffer to use to build the response */
+    BT_HDR *p_buf = (BT_HDR *)osi_malloc(SDP_DATA_BUF_SIZE);
+    p_buf->offset = L2CAP_MIN_OFFSET;
+    p_rsp = p_rsp_start = (UINT8 *)(p_buf + 1) + L2CAP_MIN_OFFSET;
+
+    /* Start building a rsponse */
+    UINT8_TO_BE_STREAM  (p_rsp, SDP_PDU_SERVICE_SEARCH_ATTR_RSP);
+    UINT16_TO_BE_STREAM (p_rsp, trans_num);
+
+    /* Skip the parameter length, add it when we know the length */
+    p_rsp_param_len = p_rsp;
+    p_rsp += 2;
+
+    /* Stream the list length to send */
+    UINT16_TO_BE_STREAM (p_rsp, len_to_send);
+
+    /* copy from rsp_list to the actual buffer to be sent */
+    memcpy (p_rsp, &p_ccb->rsp_list[cont_offset], len_to_send);
+    p_rsp += len_to_send;
+
+    p_ccb->cont_offset += len_to_send;
+
+    /* If anything left to send, continuation needed */
+    if (p_ccb->cont_offset < p_ccb->list_len)
+    {
+        is_cont = TRUE;
+
+        UINT8_TO_BE_STREAM  (p_rsp, SDP_CONTINUATION_LEN);
+        UINT16_TO_BE_STREAM (p_rsp, p_ccb->cont_offset);
+    }
+    else
+        UINT8_TO_BE_STREAM (p_rsp, 0);
+
+    /* Go back and put the parameter length into the buffer */
+    rsp_param_len = p_rsp - p_rsp_param_len - 2;
+    UINT16_TO_BE_STREAM (p_rsp_param_len, rsp_param_len);
+
+    /* Set the length of the SDP data in the buffer */
+    p_buf->len = p_rsp - p_rsp_start;
+
+
+    /* Send the buffer through L2CAP */
+    L2CA_DataWrite (p_ccb->connection_id, p_buf);
+}
+
+#endif  /* SDP_SERVER_ENABLED == TRUE */
diff --git a/rtkbt/code/bt/stack/sdp/sdp_utils.c b/rtkbt/code/bt/stack/sdp/sdp_utils.c
new file mode 100755
index 0000000..a6f0ba6
--- /dev/null
+++ b/rtkbt/code/bt/stack/sdp/sdp_utils.c
@@ -0,0 +1,1043 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains SDP utility functions
+ *
+ ******************************************************************************/
+
+#include <stdlib.h>
+#include <string.h>
+#include <netinet/in.h>
+#include <stdio.h>
+
+#include "bt_common.h"
+#include "bt_types.h"
+
+#include "l2cdefs.h"
+#include "hcidefs.h"
+#include "hcimsgs.h"
+
+#include "sdp_api.h"
+#include "sdpint.h"
+
+#include "btu.h"
+
+
+static const UINT8  sdp_base_uuid[] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00,
+                                       0x80, 0x00, 0x00, 0x80, 0x5F, 0x9B, 0x34, 0xFB};
+
+/*******************************************************************************
+**
+** Function         sdpu_find_ccb_by_cid
+**
+** Description      This function searches the CCB table for an entry with the
+**                  passed CID.
+**
+** Returns          the CCB address, or NULL if not found.
+**
+*******************************************************************************/
+tCONN_CB *sdpu_find_ccb_by_cid (UINT16 cid)
+{
+    UINT16       xx;
+    tCONN_CB     *p_ccb;
+
+    /* Look through each connection control block */
+    for (xx = 0, p_ccb = sdp_cb.ccb; xx < SDP_MAX_CONNECTIONS; xx++, p_ccb++)
+    {
+        if ((p_ccb->con_state != SDP_STATE_IDLE) && (p_ccb->connection_id == cid))
+            return (p_ccb);
+    }
+
+    /* If here, not found */
+    return (NULL);
+}
+
+
+/*******************************************************************************
+**
+** Function         sdpu_find_ccb_by_db
+**
+** Description      This function searches the CCB table for an entry with the
+**                  passed discovery db.
+**
+** Returns          the CCB address, or NULL if not found.
+**
+*******************************************************************************/
+tCONN_CB *sdpu_find_ccb_by_db (tSDP_DISCOVERY_DB *p_db)
+{
+#if SDP_CLIENT_ENABLED == TRUE
+    UINT16       xx;
+    tCONN_CB     *p_ccb;
+
+    if (p_db)
+    {
+        /* Look through each connection control block */
+        for (xx = 0, p_ccb = sdp_cb.ccb; xx < SDP_MAX_CONNECTIONS; xx++, p_ccb++)
+        {
+            if ((p_ccb->con_state != SDP_STATE_IDLE) && (p_ccb->p_db == p_db))
+                return (p_ccb);
+        }
+    }
+#endif
+    /* If here, not found */
+    return (NULL);
+}
+
+
+/*******************************************************************************
+**
+** Function         sdpu_allocate_ccb
+**
+** Description      This function allocates a new CCB.
+**
+** Returns          CCB address, or NULL if none available.
+**
+*******************************************************************************/
+tCONN_CB *sdpu_allocate_ccb (void)
+{
+    UINT16       xx;
+    tCONN_CB     *p_ccb;
+
+    /* Look through each connection control block for a free one */
+    for (xx = 0, p_ccb = sdp_cb.ccb; xx < SDP_MAX_CONNECTIONS; xx++, p_ccb++)
+    {
+        if (p_ccb->con_state == SDP_STATE_IDLE)
+        {
+            memset(p_ccb, 0, sizeof(tCONN_CB));
+            p_ccb->sdp_conn_timer = alarm_new("sdp.sdp_conn_timer");
+            return (p_ccb);
+        }
+    }
+
+    /* If here, no free CCB found */
+    return (NULL);
+}
+
+
+/*******************************************************************************
+**
+** Function         sdpu_release_ccb
+**
+** Description      This function releases a CCB.
+**
+** Returns          void
+**
+*******************************************************************************/
+void sdpu_release_ccb (tCONN_CB *p_ccb)
+{
+    /* Ensure timer is stopped */
+    alarm_free(p_ccb->sdp_conn_timer);
+    p_ccb->sdp_conn_timer = NULL;
+
+    /* Drop any response pointer we may be holding */
+    p_ccb->con_state = SDP_STATE_IDLE;
+#if SDP_CLIENT_ENABLED == TRUE
+    p_ccb->is_attr_search = FALSE;
+#endif
+
+    /* Free the response buffer */
+    if (p_ccb->rsp_list)
+        SDP_TRACE_DEBUG("releasing SDP rsp_list");
+    osi_free_and_reset((void **)&p_ccb->rsp_list);
+}
+
+
+/*******************************************************************************
+**
+** Function         sdpu_build_attrib_seq
+**
+** Description      This function builds an attribute sequence from the list of
+**                  passed attributes. It is also passed the address of the output
+**                  buffer.
+**
+** Returns          Pointer to next byte in the output buffer.
+**
+*******************************************************************************/
+UINT8 *sdpu_build_attrib_seq (UINT8 *p_out, UINT16 *p_attr, UINT16 num_attrs)
+{
+    UINT16  xx;
+
+    /* First thing is the data element header. See if the length fits 1 byte */
+    /* If no attributes, assume a 4-byte wildcard */
+    if (!p_attr)
+        xx = 5;
+    else
+        xx = num_attrs * 3;
+
+    if (xx > 255)
+    {
+        UINT8_TO_BE_STREAM  (p_out, (DATA_ELE_SEQ_DESC_TYPE << 3) | SIZE_IN_NEXT_WORD);
+        UINT16_TO_BE_STREAM (p_out, xx);
+    }
+    else
+    {
+        UINT8_TO_BE_STREAM (p_out, (DATA_ELE_SEQ_DESC_TYPE << 3) | SIZE_IN_NEXT_BYTE);
+        UINT8_TO_BE_STREAM (p_out, xx);
+    }
+
+    /* If there are no attributes specified, assume caller wants wildcard */
+    if (!p_attr)
+    {
+        UINT8_TO_BE_STREAM  (p_out, (UINT_DESC_TYPE << 3) | SIZE_FOUR_BYTES);
+        UINT16_TO_BE_STREAM (p_out, 0);
+        UINT16_TO_BE_STREAM (p_out, 0xFFFF);
+    }
+    else
+    {
+        /* Loop through and put in all the attributes(s) */
+        for (xx = 0; xx < num_attrs; xx++, p_attr++)
+        {
+            UINT8_TO_BE_STREAM  (p_out, (UINT_DESC_TYPE << 3) | SIZE_TWO_BYTES);
+            UINT16_TO_BE_STREAM (p_out, *p_attr);
+        }
+    }
+
+    return (p_out);
+}
+
+
+/*******************************************************************************
+**
+** Function         sdpu_build_attrib_entry
+**
+** Description      This function builds an attribute entry from the passed
+**                  attribute record. It is also passed the address of the output
+**                  buffer.
+**
+** Returns          Pointer to next byte in the output buffer.
+**
+*******************************************************************************/
+UINT8 *sdpu_build_attrib_entry (UINT8 *p_out, tSDP_ATTRIBUTE *p_attr)
+{
+    /* First, store the attribute ID. Goes as a UINT */
+    UINT8_TO_BE_STREAM  (p_out, (UINT_DESC_TYPE << 3) | SIZE_TWO_BYTES);
+    UINT16_TO_BE_STREAM (p_out, p_attr->id);
+
+    /* the attribute is in the db record.
+     * assuming the attribute len is less than SDP_MAX_ATTR_LEN */
+    switch(p_attr->type)
+    {
+    case TEXT_STR_DESC_TYPE:    /* 4 */
+    case DATA_ELE_SEQ_DESC_TYPE:/* 6 */
+    case DATA_ELE_ALT_DESC_TYPE:/* 7 */
+    case URL_DESC_TYPE:         /* 8 */
+#if (SDP_MAX_ATTR_LEN > 0xFFFF)
+        if(p_attr->len > 0xFFFF)
+        {
+            UINT8_TO_BE_STREAM (p_out, (p_attr->type << 3) | SIZE_IN_NEXT_LONG);
+            UINT32_TO_BE_STREAM (p_out, p_attr->len);
+        }
+        else
+
+#endif /* 0xFFFF - 0xFF */
+#if (SDP_MAX_ATTR_LEN > 0xFF)
+        if(p_attr->len > 0xFF)
+        {
+            UINT8_TO_BE_STREAM (p_out, (p_attr->type << 3) | SIZE_IN_NEXT_WORD);
+            UINT16_TO_BE_STREAM (p_out, p_attr->len);
+        }
+        else
+
+#endif /* 0xFF and less*/
+        {
+            UINT8_TO_BE_STREAM (p_out, (p_attr->type << 3) | SIZE_IN_NEXT_BYTE);
+            UINT8_TO_BE_STREAM (p_out, p_attr->len);
+        }
+
+        if (p_attr->value_ptr != NULL) {
+            ARRAY_TO_BE_STREAM (p_out, p_attr->value_ptr, (int)p_attr->len);
+        }
+
+        return (p_out);
+    }
+
+    /* Now, store the attribute value */
+    switch (p_attr->len)
+    {
+    case 1:
+        UINT8_TO_BE_STREAM (p_out, (p_attr->type << 3) | SIZE_ONE_BYTE);
+        break;
+    case 2:
+        UINT8_TO_BE_STREAM  (p_out, (p_attr->type << 3) | SIZE_TWO_BYTES);
+        break;
+    case 4:
+        UINT8_TO_BE_STREAM  (p_out, (p_attr->type << 3) | SIZE_FOUR_BYTES);
+        break;
+    case 8:
+        UINT8_TO_BE_STREAM  (p_out, (p_attr->type << 3) | SIZE_EIGHT_BYTES);
+        break;
+    case 16:
+        UINT8_TO_BE_STREAM  (p_out, (p_attr->type << 3) | SIZE_SIXTEEN_BYTES);
+        break;
+    default:
+        UINT8_TO_BE_STREAM (p_out, (p_attr->type << 3) | SIZE_IN_NEXT_BYTE);
+        UINT8_TO_BE_STREAM (p_out, p_attr->len);
+        break;
+    }
+
+    if (p_attr->value_ptr != NULL) {
+        ARRAY_TO_BE_STREAM (p_out, p_attr->value_ptr, (int)p_attr->len);
+    }
+
+    return (p_out);
+}
+
+
+/*******************************************************************************
+**
+** Function         sdpu_build_n_send_error
+**
+** Description      This function builds and sends an error packet.
+**
+** Returns          void
+**
+*******************************************************************************/
+void sdpu_build_n_send_error (tCONN_CB *p_ccb, UINT16 trans_num, UINT16 error_code, char *p_error_text)
+{
+    UINT8           *p_rsp, *p_rsp_start, *p_rsp_param_len;
+    UINT16          rsp_param_len;
+    BT_HDR          *p_buf = (BT_HDR *)osi_malloc(SDP_DATA_BUF_SIZE);
+
+
+    SDP_TRACE_WARNING ("SDP - sdpu_build_n_send_error  code: 0x%x  CID: 0x%x",
+                        error_code, p_ccb->connection_id);
+
+    /* Send the packet to L2CAP */
+    p_buf->offset = L2CAP_MIN_OFFSET;
+    p_rsp = p_rsp_start = (UINT8 *)(p_buf + 1) + L2CAP_MIN_OFFSET;
+
+    UINT8_TO_BE_STREAM(p_rsp, SDP_PDU_ERROR_RESPONSE);
+    UINT16_TO_BE_STREAM(p_rsp, trans_num);
+
+    /* Skip the parameter length, we need to add it at the end */
+    p_rsp_param_len = p_rsp;
+    p_rsp += 2;
+
+    UINT16_TO_BE_STREAM  (p_rsp, error_code);
+
+    /* Unplugfest example traces do not have any error text */
+    if (p_error_text)
+        ARRAY_TO_BE_STREAM(p_rsp, p_error_text, (int)strlen(p_error_text));
+
+    /* Go back and put the parameter length into the buffer */
+    rsp_param_len = p_rsp - p_rsp_param_len - 2;
+    UINT16_TO_BE_STREAM(p_rsp_param_len, rsp_param_len);
+
+    /* Set the length of the SDP data in the buffer */
+    p_buf->len = p_rsp - p_rsp_start;
+
+    /* Send the buffer through L2CAP */
+    L2CA_DataWrite(p_ccb->connection_id, p_buf);
+}
+
+
+
+/*******************************************************************************
+**
+** Function         sdpu_extract_uid_seq
+**
+** Description      This function extracts a UUID sequence from the passed input
+**                  buffer, and puts it into the passed output list.
+**
+** Returns          Pointer to next byte in the input buffer after the sequence.
+**
+*******************************************************************************/
+UINT8 *sdpu_extract_uid_seq (UINT8 *p, UINT16 param_len, tSDP_UUID_SEQ *p_seq)
+{
+    UINT8   *p_seq_end;
+    UINT8   descr, type, size;
+    UINT32  seq_len, uuid_len;
+
+    /* Assume none found */
+    p_seq->num_uids = 0;
+
+    /* A UID sequence is composed of a bunch of UIDs. */
+
+    BE_STREAM_TO_UINT8 (descr, p);
+    type = descr >> 3;
+    size = descr & 7;
+
+    if (type != DATA_ELE_SEQ_DESC_TYPE)
+        return (NULL);
+
+    switch (size)
+    {
+    case SIZE_TWO_BYTES:
+        seq_len = 2;
+        break;
+    case SIZE_FOUR_BYTES:
+        seq_len = 4;
+        break;
+    case SIZE_SIXTEEN_BYTES:
+        seq_len = 16;
+        break;
+    case SIZE_IN_NEXT_BYTE:
+        BE_STREAM_TO_UINT8 (seq_len, p);
+        break;
+    case SIZE_IN_NEXT_WORD:
+        BE_STREAM_TO_UINT16 (seq_len, p);
+        break;
+    case SIZE_IN_NEXT_LONG:
+        BE_STREAM_TO_UINT32 (seq_len, p);
+        break;
+    default:
+        return (NULL);
+    }
+
+    if (seq_len >= param_len)
+        return (NULL);
+
+    p_seq_end = p + seq_len;
+
+    /* Loop through, extracting the UIDs */
+    for ( ; p < p_seq_end ; )
+    {
+        BE_STREAM_TO_UINT8 (descr, p);
+        type = descr >> 3;
+        size = descr & 7;
+
+        if (type != UUID_DESC_TYPE)
+            return (NULL);
+
+        switch (size)
+        {
+        case SIZE_TWO_BYTES:
+            uuid_len = 2;
+            break;
+        case SIZE_FOUR_BYTES:
+            uuid_len = 4;
+            break;
+        case SIZE_SIXTEEN_BYTES:
+            uuid_len = 16;
+            break;
+        case SIZE_IN_NEXT_BYTE:
+            BE_STREAM_TO_UINT8 (uuid_len, p);
+            break;
+        case SIZE_IN_NEXT_WORD:
+            BE_STREAM_TO_UINT16 (uuid_len, p);
+            break;
+        case SIZE_IN_NEXT_LONG:
+            BE_STREAM_TO_UINT32 (uuid_len, p);
+            break;
+        default:
+            return (NULL);
+        }
+
+        /* If UUID length is valid, copy it across */
+        if ((uuid_len == 2) || (uuid_len == 4) || (uuid_len == 16))
+        {
+            p_seq->uuid_entry[p_seq->num_uids].len = (UINT16) uuid_len;
+            BE_STREAM_TO_ARRAY (p, p_seq->uuid_entry[p_seq->num_uids].value, (int)uuid_len);
+            p_seq->num_uids++;
+        }
+        else
+            return (NULL);
+
+        /* We can only do so many */
+        if (p_seq->num_uids >= MAX_UUIDS_PER_SEQ)
+            return (NULL);
+    }
+
+    if (p != p_seq_end)
+        return (NULL);
+
+    return (p);
+}
+
+
+
+/*******************************************************************************
+**
+** Function         sdpu_extract_attr_seq
+**
+** Description      This function extracts an attribute sequence from the passed
+**                  input buffer, and puts it into the passed output list.
+**
+** Returns          Pointer to next byte in the input buffer after the sequence.
+**
+*******************************************************************************/
+UINT8 *sdpu_extract_attr_seq (UINT8 *p, UINT16 param_len, tSDP_ATTR_SEQ *p_seq)
+{
+    UINT8   *p_end_list;
+    UINT8   descr, type, size;
+    UINT32  list_len, attr_len;
+
+    /* Assume none found */
+    p_seq->num_attr = 0;
+
+    /* Get attribute sequence info */
+    BE_STREAM_TO_UINT8 (descr, p);
+    type = descr >> 3;
+    size = descr & 7;
+
+    if (type != DATA_ELE_SEQ_DESC_TYPE)
+        return (p);
+
+    switch (size)
+    {
+    case SIZE_IN_NEXT_BYTE:
+        BE_STREAM_TO_UINT8 (list_len, p);
+        break;
+
+    case SIZE_IN_NEXT_WORD:
+        BE_STREAM_TO_UINT16 (list_len, p);
+        break;
+
+    case SIZE_IN_NEXT_LONG:
+        BE_STREAM_TO_UINT32 (list_len, p);
+        break;
+
+    default:
+        return (p);
+    }
+
+    if (list_len > param_len)
+        return (p);
+
+    p_end_list = p + list_len;
+
+    /* Loop through, extracting the attribute IDs */
+    for ( ; p < p_end_list ; )
+    {
+        BE_STREAM_TO_UINT8 (descr, p);
+        type = descr >> 3;
+        size = descr & 7;
+
+        if (type != UINT_DESC_TYPE)
+            return (p);
+
+        switch (size)
+        {
+        case SIZE_TWO_BYTES:
+            attr_len = 2;
+            break;
+        case SIZE_FOUR_BYTES:
+            attr_len = 4;
+            break;
+        case SIZE_IN_NEXT_BYTE:
+            BE_STREAM_TO_UINT8 (attr_len, p);
+            break;
+        case SIZE_IN_NEXT_WORD:
+            BE_STREAM_TO_UINT16 (attr_len, p);
+            break;
+        case SIZE_IN_NEXT_LONG:
+            BE_STREAM_TO_UINT32 (attr_len, p);
+            break;
+        default:
+            return (NULL);
+            break;
+        }
+
+        /* Attribute length must be 2-bytes or 4-bytes for a paired entry. */
+        if (attr_len == 2)
+        {
+            BE_STREAM_TO_UINT16 (p_seq->attr_entry[p_seq->num_attr].start, p);
+            p_seq->attr_entry[p_seq->num_attr].end = p_seq->attr_entry[p_seq->num_attr].start;
+        }
+        else if (attr_len == 4)
+        {
+            BE_STREAM_TO_UINT16 (p_seq->attr_entry[p_seq->num_attr].start, p);
+            BE_STREAM_TO_UINT16 (p_seq->attr_entry[p_seq->num_attr].end, p);
+        }
+        else
+            return (NULL);
+
+        /* We can only do so many */
+        if (++p_seq->num_attr >= MAX_ATTR_PER_SEQ)
+            return (NULL);
+    }
+
+    return (p);
+}
+
+
+/*******************************************************************************
+**
+** Function         sdpu_get_len_from_type
+**
+** Description      This function gets the length
+**
+** Returns          void
+**
+*******************************************************************************/
+UINT8 *sdpu_get_len_from_type (UINT8 *p, UINT8 type, UINT32 *p_len)
+{
+    UINT8   u8;
+    UINT16  u16;
+    UINT32  u32;
+
+    switch (type & 7)
+    {
+    case SIZE_ONE_BYTE:
+        *p_len = 1;
+        break;
+    case SIZE_TWO_BYTES:
+        *p_len = 2;
+        break;
+    case SIZE_FOUR_BYTES:
+        *p_len = 4;
+        break;
+    case SIZE_EIGHT_BYTES:
+        *p_len = 8;
+        break;
+    case SIZE_SIXTEEN_BYTES:
+        *p_len = 16;
+        break;
+    case SIZE_IN_NEXT_BYTE:
+        BE_STREAM_TO_UINT8 (u8, p);
+        *p_len = u8;
+        break;
+    case SIZE_IN_NEXT_WORD:
+        BE_STREAM_TO_UINT16 (u16, p);
+        *p_len = u16;
+        break;
+    case SIZE_IN_NEXT_LONG:
+        BE_STREAM_TO_UINT32 (u32, p);
+        *p_len = (UINT16) u32;
+        break;
+    }
+
+    return (p);
+}
+
+
+/*******************************************************************************
+**
+** Function         sdpu_is_base_uuid
+**
+** Description      This function checks a 128-bit UUID with the base to see if
+**                  it matches. Only the last 12 bytes are compared.
+**
+** Returns          TRUE if matched, else FALSE
+**
+*******************************************************************************/
+BOOLEAN sdpu_is_base_uuid (UINT8 *p_uuid)
+{
+    UINT16    xx;
+
+    for (xx = 4; xx < MAX_UUID_SIZE; xx++)
+        if (p_uuid[xx] != sdp_base_uuid[xx])
+            return (FALSE);
+
+    /* If here, matched */
+    return (TRUE);
+}
+
+
+/*******************************************************************************
+**
+** Function         sdpu_compare_uuid_arrays
+**
+** Description      This function compares 2 BE UUIDs. If needed, they are expanded
+**                  to 128-bit UUIDs, then compared.
+**
+** NOTE             it is assumed that the arrays are in Big Endian format
+**
+** Returns          TRUE if matched, else FALSE
+**
+*******************************************************************************/
+BOOLEAN sdpu_compare_uuid_arrays (UINT8 *p_uuid1, UINT32 len1, UINT8 *p_uuid2, UINT16 len2)
+{
+    UINT8       nu1[MAX_UUID_SIZE];
+    UINT8       nu2[MAX_UUID_SIZE];
+
+    if( ((len1 != 2) && (len1 != 4) && (len1 != 16)) ||
+        ((len2 != 2) && (len2 != 4) && (len2 != 16)) )
+    {
+        SDP_TRACE_ERROR("%s: invalid length", __func__);
+        return FALSE;
+    }
+
+    /* If lengths match, do a straight compare */
+    if (len1 == len2)
+    {
+        if (len1 == 2)
+            return ((p_uuid1[0] == p_uuid2[0]) && (p_uuid1[1] == p_uuid2[1]));
+        if (len1 == 4)
+            return (  (p_uuid1[0] == p_uuid2[0]) && (p_uuid1[1] == p_uuid2[1])
+                   && (p_uuid1[2] == p_uuid2[2]) && (p_uuid1[3] == p_uuid2[3]) );
+        else
+            return (memcmp (p_uuid1, p_uuid2, (size_t)len1) == 0);
+    }
+    else if (len1 > len2)
+    {
+        /* If the len1 was 4-byte, (so len2 is 2-byte), compare on the fly */
+        if (len1 == 4)
+        {
+            return ( (p_uuid1[0] == 0) && (p_uuid1[1] == 0)
+                  && (p_uuid1[2] == p_uuid2[0]) && (p_uuid1[3] == p_uuid2[1]) );
+        }
+        else
+        {
+            /* Normalize UUIDs to 16-byte form, then compare. Len1 must be 16 */
+            memcpy (nu1, p_uuid1,       MAX_UUID_SIZE);
+            memcpy (nu2, sdp_base_uuid, MAX_UUID_SIZE);
+
+            if (len2 == 4)
+                memcpy (nu2, p_uuid2, len2);
+            else if (len2 == 2)
+                memcpy (nu2 + 2, p_uuid2, len2);
+
+            return (memcmp (nu1, nu2, MAX_UUID_SIZE) == 0);
+        }
+    }
+    else
+    {
+        /* len2 is greater than len1 */
+        /* If the len2 was 4-byte, (so len1 is 2-byte), compare on the fly */
+        if (len2 == 4)
+        {
+            return ( (p_uuid2[0] == 0) && (p_uuid2[1] == 0)
+                  && (p_uuid2[2] == p_uuid1[0]) && (p_uuid2[3] == p_uuid1[1]) );
+        }
+        else
+        {
+            /* Normalize UUIDs to 16-byte form, then compare. Len1 must be 16 */
+            memcpy (nu2, p_uuid2,       MAX_UUID_SIZE);
+            memcpy (nu1, sdp_base_uuid, MAX_UUID_SIZE);
+
+            if (len1 == 4)
+                memcpy (nu1, p_uuid1, (size_t)len1);
+            else if (len1 == 2)
+                memcpy (nu1 + 2, p_uuid1, (size_t)len1);
+
+            return (memcmp (nu1, nu2, MAX_UUID_SIZE) == 0);
+        }
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         sdpu_compare_bt_uuids
+**
+** Description      This function compares 2 BT UUID structures.
+**
+** NOTE             it is assumed that BT UUID structures are compressed to the
+**                  smallest possible UUIDs (by removing the base SDP UUID)
+**
+** Returns          TRUE if matched, else FALSE
+**
+*******************************************************************************/
+BOOLEAN sdpu_compare_bt_uuids (tBT_UUID *p_uuid1, tBT_UUID *p_uuid2)
+{
+    /* Lengths must match for BT UUIDs to match */
+    if (p_uuid1->len == p_uuid2->len)
+    {
+        if (p_uuid1->len == 2)
+            return (p_uuid1->uu.uuid16 == p_uuid2->uu.uuid16);
+        else if (p_uuid1->len == 4)
+            return (p_uuid1->uu.uuid32 == p_uuid2->uu.uuid32);
+        else if (!memcmp (p_uuid1->uu.uuid128, p_uuid2->uu.uuid128, 16))
+            return (TRUE);
+    }
+
+    return (FALSE);
+}
+
+
+/*******************************************************************************
+**
+** Function         sdpu_compare_uuid_with_attr
+**
+** Description      This function compares a BT UUID structure with the UUID in an
+**                  SDP attribute record. If needed, they are expanded to 128-bit
+**                  UUIDs, then compared.
+**
+** NOTE           - it is assumed that BT UUID structures are compressed to the
+**                  smallest possible UUIDs (by removing the base SDP UUID).
+**                - it is also assumed that the discovery atribute is compressed
+**                  to the smallest possible
+**
+** Returns          TRUE if matched, else FALSE
+**
+*******************************************************************************/
+BOOLEAN sdpu_compare_uuid_with_attr (tBT_UUID *p_btuuid, tSDP_DISC_ATTR *p_attr)
+{
+    UINT16      attr_len = SDP_DISC_ATTR_LEN (p_attr->attr_len_type);
+
+    /* Since both UUIDs are compressed, lengths must match  */
+    if (p_btuuid->len != attr_len)
+        return (FALSE);
+
+    if (p_btuuid->len == 2)
+        return (BOOLEAN)(p_btuuid->uu.uuid16 == p_attr->attr_value.v.u16);
+    else if (p_btuuid->len == 4)
+        return (BOOLEAN)(p_btuuid->uu.uuid32 == p_attr->attr_value.v.u32);
+    /* coverity[overrun-buffer-arg] */
+    /*
+       Event overrun-buffer-arg: Overrun of static array "&p_attr->attr_value.v.array" of size 4 bytes by passing it to a function which indexes it with argument "16U" at byte position 15
+       FALSE-POSITIVE error from Coverity test tool. Please do NOT remove following comment.
+       False-positive: SDP uses scratch buffer to hold the attribute value.
+       The actual size of tSDP_DISC_ATVAL does not matter.
+       If the array size in tSDP_DISC_ATVAL is increase, we would increase the system RAM usage unnecessarily
+    */
+    else if (!memcmp (p_btuuid->uu.uuid128,(void*) p_attr->attr_value.v.array, MAX_UUID_SIZE))
+        return (TRUE);
+
+    return (FALSE);
+}
+
+/*******************************************************************************
+**
+** Function         sdpu_sort_attr_list
+**
+** Description      sorts a list of attributes in numeric order from lowest to
+**                  highest to conform to SDP specification
+**
+** Returns          void
+**
+*******************************************************************************/
+void sdpu_sort_attr_list( UINT16 num_attr, tSDP_DISCOVERY_DB *p_db )
+{
+    UINT16 i;
+    UINT16 x;
+
+    /* Done if no attributes to sort */
+    if (num_attr <= 1)
+    {
+        return;
+    }
+    else if (num_attr > SDP_MAX_ATTR_FILTERS)
+    {
+        num_attr = SDP_MAX_ATTR_FILTERS;
+    }
+
+    num_attr--; /* for the for-loop */
+    for( i = 0; i < num_attr; )
+    {
+        if( p_db->attr_filters[i] > p_db->attr_filters[i+1] )
+        {
+            /* swap the attribute IDs and start from the beginning */
+            x = p_db->attr_filters[i];
+            p_db->attr_filters[i] = p_db->attr_filters[i+1];
+            p_db->attr_filters[i+1] = x;
+
+            i = 0;
+        }
+        else
+            i++;
+    }
+}
+
+
+/*******************************************************************************
+**
+** Function         sdpu_get_list_len
+**
+** Description      gets the total list length in the sdp database for a given
+**                  uid sequence and attr sequence
+**
+** Returns          void
+**
+*******************************************************************************/
+UINT16 sdpu_get_list_len(tSDP_UUID_SEQ *uid_seq, tSDP_ATTR_SEQ *attr_seq)
+{
+    tSDP_RECORD    *p_rec;
+    UINT16 len = 0;
+    UINT16 len1;
+
+    for (p_rec = sdp_db_service_search (NULL, uid_seq); p_rec; p_rec = sdp_db_service_search (p_rec, uid_seq))
+    {
+        len += 3;
+
+        len1 = sdpu_get_attrib_seq_len(p_rec, attr_seq );
+
+        if (len1 != 0)
+            len += len1;
+        else
+            len -= 3;
+    }
+    return len;
+}
+
+/*******************************************************************************
+**
+** Function         sdpu_get_attrib_seq_len
+**
+** Description      gets the length of the specific attributes in a given
+**                  sdp record
+**
+** Returns          void
+**
+*******************************************************************************/
+UINT16 sdpu_get_attrib_seq_len(tSDP_RECORD *p_rec, tSDP_ATTR_SEQ *attr_seq)
+{
+    tSDP_ATTRIBUTE *p_attr;
+    UINT16 len1 = 0;
+    UINT16 xx;
+    BOOLEAN is_range = FALSE;
+    UINT16 start_id=0, end_id=0;
+
+    for (xx = 0; xx < attr_seq->num_attr; xx++)
+    {
+        if (is_range == FALSE)
+        {
+            start_id = attr_seq->attr_entry[xx].start;
+            end_id = attr_seq->attr_entry[xx].end;
+        }
+        p_attr = sdp_db_find_attr_in_rec (p_rec,
+                                          start_id,
+                                          end_id);
+        if (p_attr)
+        {
+            len1 += sdpu_get_attrib_entry_len (p_attr);
+
+            /* If doing a range, stick with this one till no more attributes found */
+            if (start_id != end_id)
+            {
+                /* Update for next time through */
+                start_id = p_attr->id + 1;
+                xx--;
+                is_range = TRUE;
+            }
+            else
+                is_range = FALSE;
+        }
+        else
+            is_range = FALSE;
+    }
+    return len1;
+}
+
+/*******************************************************************************
+**
+** Function         sdpu_get_attrib_entry_len
+**
+** Description      gets the length of a specific attribute
+**
+** Returns          void
+**
+*******************************************************************************/
+UINT16 sdpu_get_attrib_entry_len(tSDP_ATTRIBUTE *p_attr)
+{
+    UINT16 len = 3;
+
+    /* the attribute is in the db record.
+     * assuming the attribute len is less than SDP_MAX_ATTR_LEN */
+    switch(p_attr->type)
+    {
+    case TEXT_STR_DESC_TYPE:    /* 4 */
+    case DATA_ELE_SEQ_DESC_TYPE:/* 6 */
+    case DATA_ELE_ALT_DESC_TYPE:/* 7 */
+    case URL_DESC_TYPE:         /* 8 */
+#if (SDP_MAX_ATTR_LEN > 0xFFFF)
+        if(p_attr->len > 0xFFFF)
+        {
+            len += 5;
+        }
+        else
+
+#endif/* 0xFFFF - 0xFF */
+#if (SDP_MAX_ATTR_LEN > 0xFF)
+        if(p_attr->len > 0xFF)
+        {
+            len += 3;
+        }
+        else
+
+#endif /* 0xFF and less*/
+        {
+            len += 2;
+        }
+        len += p_attr->len;
+        return len;
+	}
+
+    /* Now, the attribute value */
+    switch (p_attr->len)
+    {
+    case 1:
+    case 2:
+    case 4:
+    case 8:
+    case 16:
+        len += 1;
+        break;
+    default:
+        len += 2;
+        break;
+    }
+
+    len += p_attr->len;
+    return len;
+}
+
+
+/*******************************************************************************
+**
+** Function         sdpu_build_partial_attrib_entry
+**
+** Description      This function fills a buffer with partial attribute. It is
+**                  assumed that the maximum size of any attribute is 256 bytes.
+**
+**                  p_out: output buffer
+**                  p_attr: attribute to be copied partially into p_out
+**                  rem_len: num bytes to copy into p_out
+**                  offset: current start offset within the attr that needs to be copied
+**
+** Returns          Pointer to next byte in the output buffer.
+**                  offset is also updated
+**
+*******************************************************************************/
+UINT8 *sdpu_build_partial_attrib_entry (UINT8 *p_out, tSDP_ATTRIBUTE *p_attr, UINT16 len, UINT16 *offset)
+{
+    UINT8 *p_attr_buff = (UINT8 *)osi_malloc(sizeof(UINT8) * SDP_MAX_ATTR_LEN);
+    sdpu_build_attrib_entry(p_attr_buff, p_attr);
+
+    UINT16 attr_len = sdpu_get_attrib_entry_len(p_attr);
+
+    if (len > SDP_MAX_ATTR_LEN)
+    {
+        SDP_TRACE_ERROR("%s len %d exceeds SDP_MAX_ATTR_LEN", __func__, len);
+        len = SDP_MAX_ATTR_LEN;
+    }
+
+    size_t len_to_copy = ((attr_len - *offset) < len) ? (attr_len - *offset) : len;
+    memcpy(p_out, &p_attr_buff[*offset], len_to_copy);
+
+    p_out = &p_out[len_to_copy];
+    *offset += len_to_copy;
+
+    osi_free(p_attr_buff);
+    return p_out;
+}
+
+/*******************************************************************************
+**
+** Function         sdpu_uuid16_to_uuid128
+**
+** Description      This function converts UUID-16 to UUID-128 by including the base UUID
+**
+**                  uuid16: 2-byte UUID
+**                  p_uuid128: Expanded 128-bit UUID
+**
+** Returns          None
+**
+*******************************************************************************/
+void sdpu_uuid16_to_uuid128(UINT16 uuid16, UINT8* p_uuid128)
+{
+    UINT16 uuid16_bo;
+    memset(p_uuid128, 0, 16);
+
+    memcpy(p_uuid128, sdp_base_uuid, MAX_UUID_SIZE);
+    uuid16_bo = ntohs(uuid16);
+    memcpy(p_uuid128+ 2, &uuid16_bo, sizeof(uint16_t));
+}
diff --git a/rtkbt/code/bt/stack/sdp/sdpint.h b/rtkbt/code/bt/stack/sdp/sdpint.h
new file mode 100755
index 0000000..05414cd
--- /dev/null
+++ b/rtkbt/code/bt/stack/sdp/sdpint.h
@@ -0,0 +1,324 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains internally used SDP definitions
+ *
+ ******************************************************************************/
+
+#ifndef  SDP_INT_H
+#define  SDP_INT_H
+
+#include "bt_target.h"
+#include "osi/include/alarm.h"
+#include "sdp_api.h"
+#include "l2c_api.h"
+
+
+/* Continuation length - we use a 2-byte offset */
+#define SDP_CONTINUATION_LEN        2
+#define SDP_MAX_CONTINUATION_LEN    16          /* As per the spec */
+
+/* Timeout definitions. */
+#define SDP_INACT_TIMEOUT_MS  (30 * 1000)    /* Inactivity timeout (in ms) */
+
+
+/* Define the Out-Flow default values. */
+#define  SDP_OFLOW_QOS_FLAG                 0
+#define  SDP_OFLOW_SERV_TYPE                0
+#define  SDP_OFLOW_TOKEN_RATE               0
+#define  SDP_OFLOW_TOKEN_BUCKET_SIZE        0
+#define  SDP_OFLOW_PEAK_BANDWIDTH           0
+#define  SDP_OFLOW_LATENCY                  0
+#define  SDP_OFLOW_DELAY_VARIATION          0
+
+/* Define the In-Flow default values. */
+#define  SDP_IFLOW_QOS_FLAG                 0
+#define  SDP_IFLOW_SERV_TYPE                0
+#define  SDP_IFLOW_TOKEN_RATE               0
+#define  SDP_IFLOW_TOKEN_BUCKET_SIZE        0
+#define  SDP_IFLOW_PEAK_BANDWIDTH           0
+#define  SDP_IFLOW_LATENCY                  0
+#define  SDP_IFLOW_DELAY_VARIATION          0
+
+#define  SDP_LINK_TO                        0
+
+/* Define the type of device notification. */
+/* (Inquiry Scan and Page Scan)            */
+#define  SDP_DEVICE_NOTI_LEN                sizeof (BT_HDR) +           \
+                                            HCIC_PREAMBLE_SIZE +        \
+                                            HCIC_PARAM_SIZE_WRITE_PARAM1
+
+#define  SDP_DEVICE_NOTI_FLAG               0x03
+
+/* Define the Protocol Data Unit (PDU) types.
+*/
+#define  SDP_PDU_ERROR_RESPONSE                 0x01
+#define  SDP_PDU_SERVICE_SEARCH_REQ             0x02
+#define  SDP_PDU_SERVICE_SEARCH_RSP             0x03
+#define  SDP_PDU_SERVICE_ATTR_REQ               0x04
+#define  SDP_PDU_SERVICE_ATTR_RSP               0x05
+#define  SDP_PDU_SERVICE_SEARCH_ATTR_REQ        0x06
+#define  SDP_PDU_SERVICE_SEARCH_ATTR_RSP        0x07
+
+/* Max UUIDs and attributes we support per sequence */
+#define     MAX_UUIDS_PER_SEQ       16
+#define     MAX_ATTR_PER_SEQ        16
+
+/* Max length we support for any attribute */
+#ifdef SDP_MAX_ATTR_LEN
+#define MAX_ATTR_LEN SDP_MAX_ATTR_LEN
+#else
+#define     MAX_ATTR_LEN            256
+#endif
+
+/* Internal UUID sequence representation */
+typedef struct
+{
+    UINT16     len;
+    UINT8      value[MAX_UUID_SIZE];
+} tUID_ENT;
+
+typedef struct
+{
+    UINT16      num_uids;
+    tUID_ENT    uuid_entry[MAX_UUIDS_PER_SEQ];
+} tSDP_UUID_SEQ;
+
+
+/* Internal attribute sequence definitions */
+typedef struct
+{
+    UINT16      start;
+    UINT16      end;
+} tATT_ENT;
+
+typedef struct
+{
+    UINT16      num_attr;
+    tATT_ENT    attr_entry[MAX_ATTR_PER_SEQ];
+} tSDP_ATTR_SEQ;
+
+
+/* Define the attribute element of the SDP database record */
+typedef struct
+{
+    UINT32  len;           /* Number of bytes in the entry */
+    UINT8   *value_ptr;    /* Points to attr_pad */
+    UINT16  id;
+    UINT8   type;
+} tSDP_ATTRIBUTE;
+
+/* An SDP record consists of a handle, and 1 or more attributes */
+typedef struct
+{
+    UINT32              record_handle;
+    UINT32              free_pad_ptr;
+    UINT16              num_attributes;
+    tSDP_ATTRIBUTE      attribute[SDP_MAX_REC_ATTR];
+    UINT8               attr_pad[SDP_MAX_PAD_LEN];
+} tSDP_RECORD;
+
+
+/* Define the SDP database */
+typedef struct
+{
+    UINT32         di_primary_handle;       /* Device ID Primary record or NULL if nonexistent */
+    UINT16         num_records;
+    tSDP_RECORD    record[SDP_MAX_RECORDS];
+} tSDP_DB;
+
+enum
+{
+    SDP_IS_SEARCH,
+    SDP_IS_ATTR_SEARCH,
+};
+
+#if SDP_SERVER_ENABLED == TRUE
+/* Continuation information for the SDP server response */
+typedef struct
+{
+    UINT16            next_attr_index; /* attr index for next continuation response */
+    UINT16            next_attr_start_id;  /* attr id to start with for the attr index in next cont. response */
+    tSDP_RECORD       *prev_sdp_rec; /* last sdp record that was completely sent in the response */
+    BOOLEAN           last_attr_seq_desc_sent; /* whether attr seq length has been sent previously */
+    UINT16            attr_offset; /* offset within the attr to keep trak of partial attributes in the responses */
+} tSDP_CONT_INFO;
+#endif  /* SDP_SERVER_ENABLED == TRUE */
+
+/* Define the SDP Connection Control Block */
+typedef struct
+{
+#define SDP_STATE_IDLE              0
+#define SDP_STATE_CONN_SETUP        1
+#define SDP_STATE_CFG_SETUP         2
+#define SDP_STATE_CONNECTED         3
+    UINT8             con_state;
+
+#define SDP_FLAGS_IS_ORIG           0x01
+#define SDP_FLAGS_HIS_CFG_DONE      0x02
+#define SDP_FLAGS_MY_CFG_DONE       0x04
+    UINT8             con_flags;
+
+    BD_ADDR           device_address;
+    alarm_t           *sdp_conn_timer;
+    UINT16            rem_mtu_size;
+    UINT16            connection_id;
+    UINT16            list_len;                 /* length of the response in the GKI buffer */
+    UINT8             *rsp_list;                /* pointer to GKI buffer holding response */
+
+#if SDP_CLIENT_ENABLED == TRUE
+    tSDP_DISCOVERY_DB *p_db;                    /* Database to save info into   */
+    tSDP_DISC_CMPL_CB *p_cb;                    /* Callback for discovery done  */
+    tSDP_DISC_CMPL_CB2 *p_cb2;                   /* Callback for discovery done piggy back with the user data */
+    void               *user_data;              /* piggy back user data */
+    UINT32            handles[SDP_MAX_DISC_SERVER_RECS]; /* Discovered server record handles */
+    UINT16            num_handles;              /* Number of server handles     */
+    UINT16            cur_handle;               /* Current handle being processed */
+    UINT16            transaction_id;
+    UINT16            disconnect_reason;        /* Disconnect reason            */
+#if (defined(SDP_BROWSE_PLUS) && SDP_BROWSE_PLUS == TRUE)
+    UINT16            cur_uuid_idx;
+#endif
+
+#define SDP_DISC_WAIT_CONN          0
+#define SDP_DISC_WAIT_HANDLES       1
+#define SDP_DISC_WAIT_ATTR          2
+#define SDP_DISC_WAIT_SEARCH_ATTR   3
+#define SDP_DISC_WAIT_CANCEL        5
+
+    UINT8             disc_state;
+    UINT8             is_attr_search;
+#endif  /* SDP_CLIENT_ENABLED == TRUE */
+
+#if SDP_SERVER_ENABLED == TRUE
+    UINT16            cont_offset;              /* Continuation state data in the server response */
+    tSDP_CONT_INFO    cont_info;                /* structure to hold continuation information for the server response */
+#endif  /* SDP_SERVER_ENABLED == TRUE */
+
+} tCONN_CB;
+
+
+/*  The main SDP control block */
+typedef struct
+{
+    tL2CAP_CFG_INFO   l2cap_my_cfg;             /* My L2CAP config     */
+    tCONN_CB          ccb[SDP_MAX_CONNECTIONS];
+#if SDP_SERVER_ENABLED == TRUE
+    tSDP_DB           server_db;
+#endif
+    tL2CAP_APPL_INFO  reg_info;                 /* L2CAP Registration info */
+    UINT16            max_attr_list_size;       /* Max attribute list size to use   */
+    UINT16            max_recs_per_search;      /* Max records we want per seaarch  */
+    UINT8             trace_level;
+} tSDP_CB;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+/* Global SDP data */
+#if SDP_DYNAMIC_MEMORY == FALSE
+extern tSDP_CB  sdp_cb;
+#else
+extern tSDP_CB *sdp_cb_ptr;
+#define sdp_cb (*sdp_cb_ptr)
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+/* Functions provided by sdp_main.c */
+extern void     sdp_init (void);
+extern void     sdp_disconnect (tCONN_CB*p_ccb, UINT16 reason);
+
+#if (defined(SDP_DEBUG) && SDP_DEBUG == TRUE)
+extern UINT16 sdp_set_max_attr_list_size (UINT16 max_size);
+#endif
+
+/* Functions provided by sdp_conn.c
+*/
+extern void sdp_conn_rcv_l2e_conn_ind (BT_HDR *p_msg);
+extern void sdp_conn_rcv_l2e_conn_cfm (BT_HDR *p_msg);
+extern void sdp_conn_rcv_l2e_disc (BT_HDR *p_msg);
+extern void sdp_conn_rcv_l2e_config_ind (BT_HDR *p_msg);
+extern void sdp_conn_rcv_l2e_config_cfm (BT_HDR *p_msg);
+extern void sdp_conn_rcv_l2e_conn_failed (BT_HDR *p_msg);
+extern void sdp_conn_rcv_l2e_connected (BT_HDR *p_msg);
+extern void sdp_conn_rcv_l2e_conn_failed (BT_HDR *p_msg);
+extern void sdp_conn_rcv_l2e_data (BT_HDR *p_msg);
+extern void sdp_conn_timer_timeout(void *data);
+
+extern tCONN_CB *sdp_conn_originate (UINT8 *p_bd_addr);
+
+/* Functions provided by sdp_utils.c
+*/
+extern tCONN_CB *sdpu_find_ccb_by_cid (UINT16 cid);
+extern tCONN_CB *sdpu_find_ccb_by_db (tSDP_DISCOVERY_DB *p_db);
+extern tCONN_CB *sdpu_allocate_ccb (void);
+extern void      sdpu_release_ccb (tCONN_CB *p_ccb);
+
+extern UINT8    *sdpu_build_attrib_seq (UINT8 *p_out, UINT16 *p_attr, UINT16 num_attrs);
+extern UINT8    *sdpu_build_attrib_entry (UINT8 *p_out, tSDP_ATTRIBUTE *p_attr);
+extern void      sdpu_build_n_send_error (tCONN_CB *p_ccb, UINT16 trans_num, UINT16 error_code, char *p_error_text);
+
+extern UINT8    *sdpu_extract_attr_seq (UINT8 *p, UINT16 param_len, tSDP_ATTR_SEQ *p_seq);
+extern UINT8    *sdpu_extract_uid_seq (UINT8 *p, UINT16 param_len, tSDP_UUID_SEQ *p_seq);
+
+extern UINT8    *sdpu_get_len_from_type (UINT8 *p, UINT8 type, UINT32 *p_len);
+extern BOOLEAN  sdpu_is_base_uuid (UINT8 *p_uuid);
+extern BOOLEAN  sdpu_compare_uuid_arrays (UINT8 *p_uuid1, UINT32 len1, UINT8 *p_uuid2, UINT16 len2);
+extern BOOLEAN  sdpu_compare_bt_uuids (tBT_UUID *p_uuid1, tBT_UUID *p_uuid2);
+extern BOOLEAN  sdpu_compare_uuid_with_attr (tBT_UUID *p_btuuid, tSDP_DISC_ATTR *p_attr);
+
+extern void     sdpu_sort_attr_list( UINT16 num_attr, tSDP_DISCOVERY_DB *p_db );
+extern UINT16 sdpu_get_list_len( tSDP_UUID_SEQ   *uid_seq, tSDP_ATTR_SEQ   *attr_seq );
+extern UINT16 sdpu_get_attrib_seq_len(tSDP_RECORD *p_rec, tSDP_ATTR_SEQ *attr_seq);
+extern UINT16 sdpu_get_attrib_entry_len(tSDP_ATTRIBUTE *p_attr);
+extern UINT8 *sdpu_build_partial_attrib_entry (UINT8 *p_out, tSDP_ATTRIBUTE *p_attr, UINT16 len, UINT16 *offset);
+extern void sdpu_uuid16_to_uuid128(UINT16 uuid16, UINT8* p_uuid128);
+
+/* Functions provided by sdp_db.c
+*/
+extern tSDP_RECORD    *sdp_db_service_search (tSDP_RECORD *p_rec, tSDP_UUID_SEQ *p_seq);
+extern tSDP_RECORD    *sdp_db_find_record (UINT32 handle);
+extern tSDP_ATTRIBUTE *sdp_db_find_attr_in_rec (tSDP_RECORD *p_rec, UINT16 start_attr, UINT16 end_attr);
+
+
+/* Functions provided by sdp_server.c
+*/
+#if SDP_SERVER_ENABLED == TRUE
+extern void     sdp_server_handle_client_req (tCONN_CB *p_ccb, BT_HDR *p_msg);
+#else
+#define sdp_server_handle_client_req(p_ccb, p_msg)
+#endif
+
+/* Functions provided by sdp_discovery.c
+*/
+#if SDP_CLIENT_ENABLED == TRUE
+extern void sdp_disc_connected (tCONN_CB *p_ccb);
+extern void sdp_disc_server_rsp (tCONN_CB *p_ccb, BT_HDR *p_msg);
+#else
+#define sdp_disc_connected(p_ccb)
+#define sdp_disc_server_rsp(p_ccb, p_msg)
+#endif
+
+
+
+#endif
diff --git a/rtkbt/code/bt/stack/smp/aes.c b/rtkbt/code/bt/stack/smp/aes.c
new file mode 100755
index 0000000..54bcda6
--- /dev/null
+++ b/rtkbt/code/bt/stack/smp/aes.c
@@ -0,0 +1,934 @@
+/*
+ ---------------------------------------------------------------------------
+ Copyright (c) 1998-2008, Brian Gladman, Worcester, UK. All rights reserved.
+
+ LICENSE TERMS
+
+ The redistribution and use of this software (with or without changes)
+ is allowed without the payment of fees or royalties provided that:
+
+  1. source code distributions include the above copyright notice, this
+     list of conditions and the following disclaimer;
+
+  2. binary distributions include the above copyright notice, this list
+     of conditions and the following disclaimer in their documentation;
+
+  3. the name of the copyright holder is not used to endorse products
+     built using this software without specific written permission.
+
+ DISCLAIMER
+
+ This software is provided 'as is' with no explicit or implied warranties
+ in respect of its properties, including, but not limited to, correctness
+ and/or fitness for purpose.
+ ---------------------------------------------------------------------------
+ Issue 09/09/2006
+
+ This is an AES implementation that uses only 8-bit byte operations on the
+ cipher state (there are options to use 32-bit types if available).
+
+ The combination of mix columns and byte substitution used here is based on
+ that developed by Karl Malbrain. His contribution is acknowledged.
+ */
+
+/* define if you have a fast memcpy function on your system */
+#if 1
+#  define HAVE_MEMCPY
+#  include <string.h>
+#if 0
+#  if defined( _MSC_VER )
+#    include <intrin.h>
+#    pragma intrinsic( memcpy )
+#  endif
+#endif
+#endif
+
+#include <stdlib.h>
+
+/* add the target configuration to allow using internal data types and compilation options */
+#include "bt_target.h"
+
+/* define if you have fast 32-bit types on your system */
+#if 1
+#  define HAVE_UINT_32T
+#endif
+
+/* define if you don't want any tables */
+#if 1
+#  define USE_TABLES
+#endif
+
+/*  On Intel Core 2 duo VERSION_1 is faster */
+
+/* alternative versions (test for performance on your system) */
+#if 1
+#  define VERSION_1
+#endif
+
+#include "aes.h"
+
+#if defined( HAVE_UINT_32T )
+  typedef UINT32 uint_32t;
+#endif
+
+/* functions for finite field multiplication in the AES Galois field    */
+
+#define WPOLY   0x011b
+#define BPOLY     0x1b
+#define DPOLY   0x008d
+
+#define f1(x)   (x)
+#define f2(x)   ((x << 1) ^ (((x >> 7) & 1) * WPOLY))
+#define f4(x)   ((x << 2) ^ (((x >> 6) & 1) * WPOLY) ^ (((x >> 6) & 2) * WPOLY))
+#define f8(x)   ((x << 3) ^ (((x >> 5) & 1) * WPOLY) ^ (((x >> 5) & 2) * WPOLY) \
+                          ^ (((x >> 5) & 4) * WPOLY))
+#define d2(x)   (((x) >> 1) ^ ((x) & 1 ? DPOLY : 0))
+
+#define f3(x)   (f2(x) ^ x)
+#define f9(x)   (f8(x) ^ x)
+#define fb(x)   (f8(x) ^ f2(x) ^ x)
+#define fd(x)   (f8(x) ^ f4(x) ^ x)
+#define fe(x)   (f8(x) ^ f4(x) ^ f2(x))
+
+#if defined( USE_TABLES )
+
+#define sb_data(w) {    /* S Box data values */                            \
+    w(0x63), w(0x7c), w(0x77), w(0x7b), w(0xf2), w(0x6b), w(0x6f), w(0xc5),\
+    w(0x30), w(0x01), w(0x67), w(0x2b), w(0xfe), w(0xd7), w(0xab), w(0x76),\
+    w(0xca), w(0x82), w(0xc9), w(0x7d), w(0xfa), w(0x59), w(0x47), w(0xf0),\
+    w(0xad), w(0xd4), w(0xa2), w(0xaf), w(0x9c), w(0xa4), w(0x72), w(0xc0),\
+    w(0xb7), w(0xfd), w(0x93), w(0x26), w(0x36), w(0x3f), w(0xf7), w(0xcc),\
+    w(0x34), w(0xa5), w(0xe5), w(0xf1), w(0x71), w(0xd8), w(0x31), w(0x15),\
+    w(0x04), w(0xc7), w(0x23), w(0xc3), w(0x18), w(0x96), w(0x05), w(0x9a),\
+    w(0x07), w(0x12), w(0x80), w(0xe2), w(0xeb), w(0x27), w(0xb2), w(0x75),\
+    w(0x09), w(0x83), w(0x2c), w(0x1a), w(0x1b), w(0x6e), w(0x5a), w(0xa0),\
+    w(0x52), w(0x3b), w(0xd6), w(0xb3), w(0x29), w(0xe3), w(0x2f), w(0x84),\
+    w(0x53), w(0xd1), w(0x00), w(0xed), w(0x20), w(0xfc), w(0xb1), w(0x5b),\
+    w(0x6a), w(0xcb), w(0xbe), w(0x39), w(0x4a), w(0x4c), w(0x58), w(0xcf),\
+    w(0xd0), w(0xef), w(0xaa), w(0xfb), w(0x43), w(0x4d), w(0x33), w(0x85),\
+    w(0x45), w(0xf9), w(0x02), w(0x7f), w(0x50), w(0x3c), w(0x9f), w(0xa8),\
+    w(0x51), w(0xa3), w(0x40), w(0x8f), w(0x92), w(0x9d), w(0x38), w(0xf5),\
+    w(0xbc), w(0xb6), w(0xda), w(0x21), w(0x10), w(0xff), w(0xf3), w(0xd2),\
+    w(0xcd), w(0x0c), w(0x13), w(0xec), w(0x5f), w(0x97), w(0x44), w(0x17),\
+    w(0xc4), w(0xa7), w(0x7e), w(0x3d), w(0x64), w(0x5d), w(0x19), w(0x73),\
+    w(0x60), w(0x81), w(0x4f), w(0xdc), w(0x22), w(0x2a), w(0x90), w(0x88),\
+    w(0x46), w(0xee), w(0xb8), w(0x14), w(0xde), w(0x5e), w(0x0b), w(0xdb),\
+    w(0xe0), w(0x32), w(0x3a), w(0x0a), w(0x49), w(0x06), w(0x24), w(0x5c),\
+    w(0xc2), w(0xd3), w(0xac), w(0x62), w(0x91), w(0x95), w(0xe4), w(0x79),\
+    w(0xe7), w(0xc8), w(0x37), w(0x6d), w(0x8d), w(0xd5), w(0x4e), w(0xa9),\
+    w(0x6c), w(0x56), w(0xf4), w(0xea), w(0x65), w(0x7a), w(0xae), w(0x08),\
+    w(0xba), w(0x78), w(0x25), w(0x2e), w(0x1c), w(0xa6), w(0xb4), w(0xc6),\
+    w(0xe8), w(0xdd), w(0x74), w(0x1f), w(0x4b), w(0xbd), w(0x8b), w(0x8a),\
+    w(0x70), w(0x3e), w(0xb5), w(0x66), w(0x48), w(0x03), w(0xf6), w(0x0e),\
+    w(0x61), w(0x35), w(0x57), w(0xb9), w(0x86), w(0xc1), w(0x1d), w(0x9e),\
+    w(0xe1), w(0xf8), w(0x98), w(0x11), w(0x69), w(0xd9), w(0x8e), w(0x94),\
+    w(0x9b), w(0x1e), w(0x87), w(0xe9), w(0xce), w(0x55), w(0x28), w(0xdf),\
+    w(0x8c), w(0xa1), w(0x89), w(0x0d), w(0xbf), w(0xe6), w(0x42), w(0x68),\
+    w(0x41), w(0x99), w(0x2d), w(0x0f), w(0xb0), w(0x54), w(0xbb), w(0x16) }
+
+#define isb_data(w) {   /* inverse S Box data values */                    \
+    w(0x52), w(0x09), w(0x6a), w(0xd5), w(0x30), w(0x36), w(0xa5), w(0x38),\
+    w(0xbf), w(0x40), w(0xa3), w(0x9e), w(0x81), w(0xf3), w(0xd7), w(0xfb),\
+    w(0x7c), w(0xe3), w(0x39), w(0x82), w(0x9b), w(0x2f), w(0xff), w(0x87),\
+    w(0x34), w(0x8e), w(0x43), w(0x44), w(0xc4), w(0xde), w(0xe9), w(0xcb),\
+    w(0x54), w(0x7b), w(0x94), w(0x32), w(0xa6), w(0xc2), w(0x23), w(0x3d),\
+    w(0xee), w(0x4c), w(0x95), w(0x0b), w(0x42), w(0xfa), w(0xc3), w(0x4e),\
+    w(0x08), w(0x2e), w(0xa1), w(0x66), w(0x28), w(0xd9), w(0x24), w(0xb2),\
+    w(0x76), w(0x5b), w(0xa2), w(0x49), w(0x6d), w(0x8b), w(0xd1), w(0x25),\
+    w(0x72), w(0xf8), w(0xf6), w(0x64), w(0x86), w(0x68), w(0x98), w(0x16),\
+    w(0xd4), w(0xa4), w(0x5c), w(0xcc), w(0x5d), w(0x65), w(0xb6), w(0x92),\
+    w(0x6c), w(0x70), w(0x48), w(0x50), w(0xfd), w(0xed), w(0xb9), w(0xda),\
+    w(0x5e), w(0x15), w(0x46), w(0x57), w(0xa7), w(0x8d), w(0x9d), w(0x84),\
+    w(0x90), w(0xd8), w(0xab), w(0x00), w(0x8c), w(0xbc), w(0xd3), w(0x0a),\
+    w(0xf7), w(0xe4), w(0x58), w(0x05), w(0xb8), w(0xb3), w(0x45), w(0x06),\
+    w(0xd0), w(0x2c), w(0x1e), w(0x8f), w(0xca), w(0x3f), w(0x0f), w(0x02),\
+    w(0xc1), w(0xaf), w(0xbd), w(0x03), w(0x01), w(0x13), w(0x8a), w(0x6b),\
+    w(0x3a), w(0x91), w(0x11), w(0x41), w(0x4f), w(0x67), w(0xdc), w(0xea),\
+    w(0x97), w(0xf2), w(0xcf), w(0xce), w(0xf0), w(0xb4), w(0xe6), w(0x73),\
+    w(0x96), w(0xac), w(0x74), w(0x22), w(0xe7), w(0xad), w(0x35), w(0x85),\
+    w(0xe2), w(0xf9), w(0x37), w(0xe8), w(0x1c), w(0x75), w(0xdf), w(0x6e),\
+    w(0x47), w(0xf1), w(0x1a), w(0x71), w(0x1d), w(0x29), w(0xc5), w(0x89),\
+    w(0x6f), w(0xb7), w(0x62), w(0x0e), w(0xaa), w(0x18), w(0xbe), w(0x1b),\
+    w(0xfc), w(0x56), w(0x3e), w(0x4b), w(0xc6), w(0xd2), w(0x79), w(0x20),\
+    w(0x9a), w(0xdb), w(0xc0), w(0xfe), w(0x78), w(0xcd), w(0x5a), w(0xf4),\
+    w(0x1f), w(0xdd), w(0xa8), w(0x33), w(0x88), w(0x07), w(0xc7), w(0x31),\
+    w(0xb1), w(0x12), w(0x10), w(0x59), w(0x27), w(0x80), w(0xec), w(0x5f),\
+    w(0x60), w(0x51), w(0x7f), w(0xa9), w(0x19), w(0xb5), w(0x4a), w(0x0d),\
+    w(0x2d), w(0xe5), w(0x7a), w(0x9f), w(0x93), w(0xc9), w(0x9c), w(0xef),\
+    w(0xa0), w(0xe0), w(0x3b), w(0x4d), w(0xae), w(0x2a), w(0xf5), w(0xb0),\
+    w(0xc8), w(0xeb), w(0xbb), w(0x3c), w(0x83), w(0x53), w(0x99), w(0x61),\
+    w(0x17), w(0x2b), w(0x04), w(0x7e), w(0xba), w(0x77), w(0xd6), w(0x26),\
+    w(0xe1), w(0x69), w(0x14), w(0x63), w(0x55), w(0x21), w(0x0c), w(0x7d) }
+
+#define mm_data(w) {    /* basic data for forming finite field tables */   \
+    w(0x00), w(0x01), w(0x02), w(0x03), w(0x04), w(0x05), w(0x06), w(0x07),\
+    w(0x08), w(0x09), w(0x0a), w(0x0b), w(0x0c), w(0x0d), w(0x0e), w(0x0f),\
+    w(0x10), w(0x11), w(0x12), w(0x13), w(0x14), w(0x15), w(0x16), w(0x17),\
+    w(0x18), w(0x19), w(0x1a), w(0x1b), w(0x1c), w(0x1d), w(0x1e), w(0x1f),\
+    w(0x20), w(0x21), w(0x22), w(0x23), w(0x24), w(0x25), w(0x26), w(0x27),\
+    w(0x28), w(0x29), w(0x2a), w(0x2b), w(0x2c), w(0x2d), w(0x2e), w(0x2f),\
+    w(0x30), w(0x31), w(0x32), w(0x33), w(0x34), w(0x35), w(0x36), w(0x37),\
+    w(0x38), w(0x39), w(0x3a), w(0x3b), w(0x3c), w(0x3d), w(0x3e), w(0x3f),\
+    w(0x40), w(0x41), w(0x42), w(0x43), w(0x44), w(0x45), w(0x46), w(0x47),\
+    w(0x48), w(0x49), w(0x4a), w(0x4b), w(0x4c), w(0x4d), w(0x4e), w(0x4f),\
+    w(0x50), w(0x51), w(0x52), w(0x53), w(0x54), w(0x55), w(0x56), w(0x57),\
+    w(0x58), w(0x59), w(0x5a), w(0x5b), w(0x5c), w(0x5d), w(0x5e), w(0x5f),\
+    w(0x60), w(0x61), w(0x62), w(0x63), w(0x64), w(0x65), w(0x66), w(0x67),\
+    w(0x68), w(0x69), w(0x6a), w(0x6b), w(0x6c), w(0x6d), w(0x6e), w(0x6f),\
+    w(0x70), w(0x71), w(0x72), w(0x73), w(0x74), w(0x75), w(0x76), w(0x77),\
+    w(0x78), w(0x79), w(0x7a), w(0x7b), w(0x7c), w(0x7d), w(0x7e), w(0x7f),\
+    w(0x80), w(0x81), w(0x82), w(0x83), w(0x84), w(0x85), w(0x86), w(0x87),\
+    w(0x88), w(0x89), w(0x8a), w(0x8b), w(0x8c), w(0x8d), w(0x8e), w(0x8f),\
+    w(0x90), w(0x91), w(0x92), w(0x93), w(0x94), w(0x95), w(0x96), w(0x97),\
+    w(0x98), w(0x99), w(0x9a), w(0x9b), w(0x9c), w(0x9d), w(0x9e), w(0x9f),\
+    w(0xa0), w(0xa1), w(0xa2), w(0xa3), w(0xa4), w(0xa5), w(0xa6), w(0xa7),\
+    w(0xa8), w(0xa9), w(0xaa), w(0xab), w(0xac), w(0xad), w(0xae), w(0xaf),\
+    w(0xb0), w(0xb1), w(0xb2), w(0xb3), w(0xb4), w(0xb5), w(0xb6), w(0xb7),\
+    w(0xb8), w(0xb9), w(0xba), w(0xbb), w(0xbc), w(0xbd), w(0xbe), w(0xbf),\
+    w(0xc0), w(0xc1), w(0xc2), w(0xc3), w(0xc4), w(0xc5), w(0xc6), w(0xc7),\
+    w(0xc8), w(0xc9), w(0xca), w(0xcb), w(0xcc), w(0xcd), w(0xce), w(0xcf),\
+    w(0xd0), w(0xd1), w(0xd2), w(0xd3), w(0xd4), w(0xd5), w(0xd6), w(0xd7),\
+    w(0xd8), w(0xd9), w(0xda), w(0xdb), w(0xdc), w(0xdd), w(0xde), w(0xdf),\
+    w(0xe0), w(0xe1), w(0xe2), w(0xe3), w(0xe4), w(0xe5), w(0xe6), w(0xe7),\
+    w(0xe8), w(0xe9), w(0xea), w(0xeb), w(0xec), w(0xed), w(0xee), w(0xef),\
+    w(0xf0), w(0xf1), w(0xf2), w(0xf3), w(0xf4), w(0xf5), w(0xf6), w(0xf7),\
+    w(0xf8), w(0xf9), w(0xfa), w(0xfb), w(0xfc), w(0xfd), w(0xfe), w(0xff) }
+
+static const uint_8t sbox[256]  =  sb_data(f1);
+static const uint_8t isbox[256] = isb_data(f1);
+
+static const uint_8t gfm2_sbox[256] = sb_data(f2);
+static const uint_8t gfm3_sbox[256] = sb_data(f3);
+
+static const uint_8t gfmul_9[256] = mm_data(f9);
+static const uint_8t gfmul_b[256] = mm_data(fb);
+static const uint_8t gfmul_d[256] = mm_data(fd);
+static const uint_8t gfmul_e[256] = mm_data(fe);
+
+#define s_box(x)     sbox[(x)]
+#define is_box(x)    isbox[(x)]
+#define gfm2_sb(x)   gfm2_sbox[(x)]
+#define gfm3_sb(x)   gfm3_sbox[(x)]
+#define gfm_9(x)     gfmul_9[(x)]
+#define gfm_b(x)     gfmul_b[(x)]
+#define gfm_d(x)     gfmul_d[(x)]
+#define gfm_e(x)     gfmul_e[(x)]
+
+#else
+
+/* this is the high bit of x right shifted by 1 */
+/* position. Since the starting polynomial has  */
+/* 9 bits (0x11b), this right shift keeps the   */
+/* values of all top bits within a byte         */
+
+static uint_8t hibit(const uint_8t x)
+{   uint_8t r = (uint_8t)((x >> 1) | (x >> 2));
+
+    r |= (r >> 2);
+    r |= (r >> 4);
+    return (r + 1) >> 1;
+}
+
+/* return the inverse of the finite field element x */
+
+static uint_8t gf_inv(const uint_8t x)
+{   uint_8t p1 = x, p2 = BPOLY, n1 = hibit(x), n2 = 0x80, v1 = 1, v2 = 0;
+
+    if(x < 2)
+        return x;
+
+    for( ; ; )
+    {
+        if(n1)
+            while(n2 >= n1)             /* divide polynomial p2 by p1    */
+            {
+                n2 /= n1;               /* shift smaller polynomial left */
+                p2 ^= (p1 * n2) & 0xff; /* and remove from larger one    */
+                v2 ^= (v1 * n2);        /* shift accumulated value and   */
+                n2 = hibit(p2);         /* add into result               */
+            }
+        else
+            return v1;
+
+        if(n2)                          /* repeat with values swapped    */
+            while(n1 >= n2)
+            {
+                n1 /= n2;
+                p1 ^= p2 * n1;
+                v1 ^= v2 * n1;
+                n1 = hibit(p1);
+            }
+        else
+            return v2;
+    }
+}
+
+/* The forward and inverse affine transformations used in the S-box */
+uint_8t fwd_affine(const uint_8t x)
+{
+#if defined( HAVE_UINT_32T )
+    uint_32t w = x;
+    w ^= (w << 1) ^ (w << 2) ^ (w << 3) ^ (w << 4);
+    return 0x63 ^ ((w ^ (w >> 8)) & 0xff);
+#else
+    return 0x63 ^ x ^ (x << 1) ^ (x << 2) ^ (x << 3) ^ (x << 4)
+                    ^ (x >> 7) ^ (x >> 6) ^ (x >> 5) ^ (x >> 4);
+#endif
+}
+
+uint_8t inv_affine(const uint_8t x)
+{
+#if defined( HAVE_UINT_32T )
+    uint_32t w = x;
+    w = (w << 1) ^ (w << 3) ^ (w << 6);
+    return 0x05 ^ ((w ^ (w >> 8)) & 0xff);
+#else
+    return 0x05 ^ (x << 1) ^ (x << 3) ^ (x << 6)
+                ^ (x >> 7) ^ (x >> 5) ^ (x >> 2);
+#endif
+}
+
+#define s_box(x)   fwd_affine(gf_inv(x))
+#define is_box(x)  gf_inv(inv_affine(x))
+#define gfm2_sb(x) f2(s_box(x))
+#define gfm3_sb(x) f3(s_box(x))
+#define gfm_9(x)   f9(x)
+#define gfm_b(x)   fb(x)
+#define gfm_d(x)   fd(x)
+#define gfm_e(x)   fe(x)
+
+#endif
+
+#if defined( HAVE_MEMCPY )
+#  define block_copy_nn(d, s, l)    memcpy(d, s, l)
+#  define block_copy(d, s)          memcpy(d, s, N_BLOCK)
+#else
+#  define block_copy_nn(d, s, l)    copy_block_nn(d, s, l)
+#  define block_copy(d, s)          copy_block(d, s)
+#endif
+
+#if !defined( HAVE_MEMCPY )
+static void copy_block( void *d, const void *s )
+{
+#if defined( HAVE_UINT_32T )
+    ((uint_32t*)d)[ 0] = ((uint_32t*)s)[ 0];
+    ((uint_32t*)d)[ 1] = ((uint_32t*)s)[ 1];
+    ((uint_32t*)d)[ 2] = ((uint_32t*)s)[ 2];
+    ((uint_32t*)d)[ 3] = ((uint_32t*)s)[ 3];
+#else
+    ((uint_8t*)d)[ 0] = ((uint_8t*)s)[ 0];
+    ((uint_8t*)d)[ 1] = ((uint_8t*)s)[ 1];
+    ((uint_8t*)d)[ 2] = ((uint_8t*)s)[ 2];
+    ((uint_8t*)d)[ 3] = ((uint_8t*)s)[ 3];
+    ((uint_8t*)d)[ 4] = ((uint_8t*)s)[ 4];
+    ((uint_8t*)d)[ 5] = ((uint_8t*)s)[ 5];
+    ((uint_8t*)d)[ 6] = ((uint_8t*)s)[ 6];
+    ((uint_8t*)d)[ 7] = ((uint_8t*)s)[ 7];
+    ((uint_8t*)d)[ 8] = ((uint_8t*)s)[ 8];
+    ((uint_8t*)d)[ 9] = ((uint_8t*)s)[ 9];
+    ((uint_8t*)d)[10] = ((uint_8t*)s)[10];
+    ((uint_8t*)d)[11] = ((uint_8t*)s)[11];
+    ((uint_8t*)d)[12] = ((uint_8t*)s)[12];
+    ((uint_8t*)d)[13] = ((uint_8t*)s)[13];
+    ((uint_8t*)d)[14] = ((uint_8t*)s)[14];
+    ((uint_8t*)d)[15] = ((uint_8t*)s)[15];
+#endif
+}
+
+static void copy_block_nn( void * d, const void *s, uint_8t nn )
+{
+    while( nn-- )
+        *((uint_8t*)d)++ = *((uint_8t*)s)++;
+}
+#endif
+
+static void xor_block( void *d, const void *s )
+{
+#if defined( HAVE_UINT_32T )
+    ((uint_32t*)d)[ 0] ^= ((uint_32t*)s)[ 0];
+    ((uint_32t*)d)[ 1] ^= ((uint_32t*)s)[ 1];
+    ((uint_32t*)d)[ 2] ^= ((uint_32t*)s)[ 2];
+    ((uint_32t*)d)[ 3] ^= ((uint_32t*)s)[ 3];
+#else
+    ((uint_8t*)d)[ 0] ^= ((uint_8t*)s)[ 0];
+    ((uint_8t*)d)[ 1] ^= ((uint_8t*)s)[ 1];
+    ((uint_8t*)d)[ 2] ^= ((uint_8t*)s)[ 2];
+    ((uint_8t*)d)[ 3] ^= ((uint_8t*)s)[ 3];
+    ((uint_8t*)d)[ 4] ^= ((uint_8t*)s)[ 4];
+    ((uint_8t*)d)[ 5] ^= ((uint_8t*)s)[ 5];
+    ((uint_8t*)d)[ 6] ^= ((uint_8t*)s)[ 6];
+    ((uint_8t*)d)[ 7] ^= ((uint_8t*)s)[ 7];
+    ((uint_8t*)d)[ 8] ^= ((uint_8t*)s)[ 8];
+    ((uint_8t*)d)[ 9] ^= ((uint_8t*)s)[ 9];
+    ((uint_8t*)d)[10] ^= ((uint_8t*)s)[10];
+    ((uint_8t*)d)[11] ^= ((uint_8t*)s)[11];
+    ((uint_8t*)d)[12] ^= ((uint_8t*)s)[12];
+    ((uint_8t*)d)[13] ^= ((uint_8t*)s)[13];
+    ((uint_8t*)d)[14] ^= ((uint_8t*)s)[14];
+    ((uint_8t*)d)[15] ^= ((uint_8t*)s)[15];
+#endif
+}
+
+static void copy_and_key( void *d, const void *s, const void *k )
+{
+#if defined( HAVE_UINT_32T )
+    ((uint_32t*)d)[ 0] = ((uint_32t*)s)[ 0] ^ ((uint_32t*)k)[ 0];
+    ((uint_32t*)d)[ 1] = ((uint_32t*)s)[ 1] ^ ((uint_32t*)k)[ 1];
+    ((uint_32t*)d)[ 2] = ((uint_32t*)s)[ 2] ^ ((uint_32t*)k)[ 2];
+    ((uint_32t*)d)[ 3] = ((uint_32t*)s)[ 3] ^ ((uint_32t*)k)[ 3];
+#elif 1
+    ((uint_8t*)d)[ 0] = ((uint_8t*)s)[ 0] ^ ((uint_8t*)k)[ 0];
+    ((uint_8t*)d)[ 1] = ((uint_8t*)s)[ 1] ^ ((uint_8t*)k)[ 1];
+    ((uint_8t*)d)[ 2] = ((uint_8t*)s)[ 2] ^ ((uint_8t*)k)[ 2];
+    ((uint_8t*)d)[ 3] = ((uint_8t*)s)[ 3] ^ ((uint_8t*)k)[ 3];
+    ((uint_8t*)d)[ 4] = ((uint_8t*)s)[ 4] ^ ((uint_8t*)k)[ 4];
+    ((uint_8t*)d)[ 5] = ((uint_8t*)s)[ 5] ^ ((uint_8t*)k)[ 5];
+    ((uint_8t*)d)[ 6] = ((uint_8t*)s)[ 6] ^ ((uint_8t*)k)[ 6];
+    ((uint_8t*)d)[ 7] = ((uint_8t*)s)[ 7] ^ ((uint_8t*)k)[ 7];
+    ((uint_8t*)d)[ 8] = ((uint_8t*)s)[ 8] ^ ((uint_8t*)k)[ 8];
+    ((uint_8t*)d)[ 9] = ((uint_8t*)s)[ 9] ^ ((uint_8t*)k)[ 9];
+    ((uint_8t*)d)[10] = ((uint_8t*)s)[10] ^ ((uint_8t*)k)[10];
+    ((uint_8t*)d)[11] = ((uint_8t*)s)[11] ^ ((uint_8t*)k)[11];
+    ((uint_8t*)d)[12] = ((uint_8t*)s)[12] ^ ((uint_8t*)k)[12];
+    ((uint_8t*)d)[13] = ((uint_8t*)s)[13] ^ ((uint_8t*)k)[13];
+    ((uint_8t*)d)[14] = ((uint_8t*)s)[14] ^ ((uint_8t*)k)[14];
+    ((uint_8t*)d)[15] = ((uint_8t*)s)[15] ^ ((uint_8t*)k)[15];
+#else
+    block_copy(d, s);
+    xor_block(d, k);
+#endif
+}
+
+static void add_round_key( uint_8t d[N_BLOCK], const uint_8t k[N_BLOCK] )
+{
+    xor_block(d, k);
+}
+
+static void shift_sub_rows( uint_8t st[N_BLOCK] )
+{   uint_8t tt;
+
+    st[ 0] = s_box(st[ 0]); st[ 4] = s_box(st[ 4]);
+    st[ 8] = s_box(st[ 8]); st[12] = s_box(st[12]);
+
+    tt = st[1]; st[ 1] = s_box(st[ 5]); st[ 5] = s_box(st[ 9]);
+    st[ 9] = s_box(st[13]); st[13] = s_box( tt );
+
+    tt = st[2]; st[ 2] = s_box(st[10]); st[10] = s_box( tt );
+    tt = st[6]; st[ 6] = s_box(st[14]); st[14] = s_box( tt );
+
+    tt = st[15]; st[15] = s_box(st[11]); st[11] = s_box(st[ 7]);
+    st[ 7] = s_box(st[ 3]); st[ 3] = s_box( tt );
+}
+
+static void inv_shift_sub_rows( uint_8t st[N_BLOCK] )
+{   uint_8t tt;
+
+    st[ 0] = is_box(st[ 0]); st[ 4] = is_box(st[ 4]);
+    st[ 8] = is_box(st[ 8]); st[12] = is_box(st[12]);
+
+    tt = st[13]; st[13] = is_box(st[9]); st[ 9] = is_box(st[5]);
+    st[ 5] = is_box(st[1]); st[ 1] = is_box( tt );
+
+    tt = st[2]; st[ 2] = is_box(st[10]); st[10] = is_box( tt );
+    tt = st[6]; st[ 6] = is_box(st[14]); st[14] = is_box( tt );
+
+    tt = st[3]; st[ 3] = is_box(st[ 7]); st[ 7] = is_box(st[11]);
+    st[11] = is_box(st[15]); st[15] = is_box( tt );
+}
+
+#if defined( VERSION_1 )
+  static void mix_sub_columns( uint_8t dt[N_BLOCK] )
+  { uint_8t st[N_BLOCK];
+    block_copy(st, dt);
+#else
+  static void mix_sub_columns( uint_8t dt[N_BLOCK], uint_8t st[N_BLOCK] )
+  {
+#endif
+    dt[ 0] = gfm2_sb(st[0]) ^ gfm3_sb(st[5]) ^ s_box(st[10]) ^ s_box(st[15]);
+    dt[ 1] = s_box(st[0]) ^ gfm2_sb(st[5]) ^ gfm3_sb(st[10]) ^ s_box(st[15]);
+    dt[ 2] = s_box(st[0]) ^ s_box(st[5]) ^ gfm2_sb(st[10]) ^ gfm3_sb(st[15]);
+    dt[ 3] = gfm3_sb(st[0]) ^ s_box(st[5]) ^ s_box(st[10]) ^ gfm2_sb(st[15]);
+
+    dt[ 4] = gfm2_sb(st[4]) ^ gfm3_sb(st[9]) ^ s_box(st[14]) ^ s_box(st[3]);
+    dt[ 5] = s_box(st[4]) ^ gfm2_sb(st[9]) ^ gfm3_sb(st[14]) ^ s_box(st[3]);
+    dt[ 6] = s_box(st[4]) ^ s_box(st[9]) ^ gfm2_sb(st[14]) ^ gfm3_sb(st[3]);
+    dt[ 7] = gfm3_sb(st[4]) ^ s_box(st[9]) ^ s_box(st[14]) ^ gfm2_sb(st[3]);
+
+    dt[ 8] = gfm2_sb(st[8]) ^ gfm3_sb(st[13]) ^ s_box(st[2]) ^ s_box(st[7]);
+    dt[ 9] = s_box(st[8]) ^ gfm2_sb(st[13]) ^ gfm3_sb(st[2]) ^ s_box(st[7]);
+    dt[10] = s_box(st[8]) ^ s_box(st[13]) ^ gfm2_sb(st[2]) ^ gfm3_sb(st[7]);
+    dt[11] = gfm3_sb(st[8]) ^ s_box(st[13]) ^ s_box(st[2]) ^ gfm2_sb(st[7]);
+
+    dt[12] = gfm2_sb(st[12]) ^ gfm3_sb(st[1]) ^ s_box(st[6]) ^ s_box(st[11]);
+    dt[13] = s_box(st[12]) ^ gfm2_sb(st[1]) ^ gfm3_sb(st[6]) ^ s_box(st[11]);
+    dt[14] = s_box(st[12]) ^ s_box(st[1]) ^ gfm2_sb(st[6]) ^ gfm3_sb(st[11]);
+    dt[15] = gfm3_sb(st[12]) ^ s_box(st[1]) ^ s_box(st[6]) ^ gfm2_sb(st[11]);
+  }
+
+#if defined( VERSION_1 )
+  static void inv_mix_sub_columns( uint_8t dt[N_BLOCK] )
+  { uint_8t st[N_BLOCK];
+    block_copy(st, dt);
+#else
+  static void inv_mix_sub_columns( uint_8t dt[N_BLOCK], uint_8t st[N_BLOCK] )
+  {
+#endif
+    dt[ 0] = is_box(gfm_e(st[ 0]) ^ gfm_b(st[ 1]) ^ gfm_d(st[ 2]) ^ gfm_9(st[ 3]));
+    dt[ 5] = is_box(gfm_9(st[ 0]) ^ gfm_e(st[ 1]) ^ gfm_b(st[ 2]) ^ gfm_d(st[ 3]));
+    dt[10] = is_box(gfm_d(st[ 0]) ^ gfm_9(st[ 1]) ^ gfm_e(st[ 2]) ^ gfm_b(st[ 3]));
+    dt[15] = is_box(gfm_b(st[ 0]) ^ gfm_d(st[ 1]) ^ gfm_9(st[ 2]) ^ gfm_e(st[ 3]));
+
+    dt[ 4] = is_box(gfm_e(st[ 4]) ^ gfm_b(st[ 5]) ^ gfm_d(st[ 6]) ^ gfm_9(st[ 7]));
+    dt[ 9] = is_box(gfm_9(st[ 4]) ^ gfm_e(st[ 5]) ^ gfm_b(st[ 6]) ^ gfm_d(st[ 7]));
+    dt[14] = is_box(gfm_d(st[ 4]) ^ gfm_9(st[ 5]) ^ gfm_e(st[ 6]) ^ gfm_b(st[ 7]));
+    dt[ 3] = is_box(gfm_b(st[ 4]) ^ gfm_d(st[ 5]) ^ gfm_9(st[ 6]) ^ gfm_e(st[ 7]));
+
+    dt[ 8] = is_box(gfm_e(st[ 8]) ^ gfm_b(st[ 9]) ^ gfm_d(st[10]) ^ gfm_9(st[11]));
+    dt[13] = is_box(gfm_9(st[ 8]) ^ gfm_e(st[ 9]) ^ gfm_b(st[10]) ^ gfm_d(st[11]));
+    dt[ 2] = is_box(gfm_d(st[ 8]) ^ gfm_9(st[ 9]) ^ gfm_e(st[10]) ^ gfm_b(st[11]));
+    dt[ 7] = is_box(gfm_b(st[ 8]) ^ gfm_d(st[ 9]) ^ gfm_9(st[10]) ^ gfm_e(st[11]));
+
+    dt[12] = is_box(gfm_e(st[12]) ^ gfm_b(st[13]) ^ gfm_d(st[14]) ^ gfm_9(st[15]));
+    dt[ 1] = is_box(gfm_9(st[12]) ^ gfm_e(st[13]) ^ gfm_b(st[14]) ^ gfm_d(st[15]));
+    dt[ 6] = is_box(gfm_d(st[12]) ^ gfm_9(st[13]) ^ gfm_e(st[14]) ^ gfm_b(st[15]));
+    dt[11] = is_box(gfm_b(st[12]) ^ gfm_d(st[13]) ^ gfm_9(st[14]) ^ gfm_e(st[15]));
+  }
+
+#if defined( AES_ENC_PREKEYED ) || defined( AES_DEC_PREKEYED )
+
+/*  Set the cipher key for the pre-keyed version */
+/*  NOTE: If the length_type used for the key length is an
+    unsigned 8-bit character, a key length of 256 bits must
+    be entered as a length in bytes (valid inputs are hence
+    128, 192, 16, 24 and 32).
+*/
+
+return_type aes_set_key( const unsigned char key[], length_type keylen, aes_context ctx[1] )
+{
+    uint_8t cc, rc, hi;
+
+    switch( keylen )
+    {
+    case 16:
+    case 128:           /* length in bits (128 = 8*16) */
+        keylen = 16;
+        break;
+    case 24:
+    case 192:           /* length in bits (192 = 8*24) */
+        keylen = 24;
+        break;
+    case 32:
+/*    case 256:           length in bits (256 = 8*32) */
+        keylen = 32;
+        break;
+    default:
+        ctx->rnd = 0;
+        return (return_type)-1;
+    }
+    block_copy_nn(ctx->ksch, key, keylen);
+    hi = (keylen + 28) << 2;
+    ctx->rnd = (hi >> 4) - 1;
+    for( cc = keylen, rc = 1; cc < hi; cc += 4 )
+    {   uint_8t tt, t0, t1, t2, t3;
+
+        t0 = ctx->ksch[cc - 4];
+        t1 = ctx->ksch[cc - 3];
+        t2 = ctx->ksch[cc - 2];
+        t3 = ctx->ksch[cc - 1];
+        if( cc % keylen == 0 )
+        {
+            tt = t0;
+            t0 = s_box(t1) ^ rc;
+            t1 = s_box(t2);
+            t2 = s_box(t3);
+            t3 = s_box(tt);
+            rc = f2(rc);
+        }
+        else if( keylen > 24 && cc % keylen == 16 )
+        {
+            t0 = s_box(t0);
+            t1 = s_box(t1);
+            t2 = s_box(t2);
+            t3 = s_box(t3);
+        }
+        tt = cc - keylen;
+        ctx->ksch[cc + 0] = ctx->ksch[tt + 0] ^ t0;
+        ctx->ksch[cc + 1] = ctx->ksch[tt + 1] ^ t1;
+        ctx->ksch[cc + 2] = ctx->ksch[tt + 2] ^ t2;
+        ctx->ksch[cc + 3] = ctx->ksch[tt + 3] ^ t3;
+    }
+    return 0;
+}
+
+#endif
+
+#if defined( AES_ENC_PREKEYED )
+
+/*  Encrypt a single block of 16 bytes */
+
+return_type aes_encrypt( const unsigned char in[N_BLOCK], unsigned char  out[N_BLOCK], const aes_context ctx[1] )
+{
+    if( ctx->rnd )
+    {
+        uint_8t s1[N_BLOCK], r;
+        copy_and_key( s1, in, ctx->ksch );
+
+        for( r = 1 ; r < ctx->rnd ; ++r )
+#if defined( VERSION_1 )
+        {
+            mix_sub_columns( s1 );
+            add_round_key( s1, ctx->ksch + r * N_BLOCK);
+        }
+#else
+        {   uint_8t s2[N_BLOCK];
+            mix_sub_columns( s2, s1 );
+            copy_and_key( s1, s2, ctx->ksch + r * N_BLOCK);
+        }
+#endif
+        shift_sub_rows( s1 );
+        copy_and_key( out, s1, ctx->ksch + r * N_BLOCK );
+    }
+    else
+        return (return_type)-1;
+    return 0;
+}
+
+/* CBC encrypt a number of blocks (input and return an IV) */
+
+return_type aes_cbc_encrypt( const unsigned char *in, unsigned char *out,
+                         int n_block, unsigned char iv[N_BLOCK], const aes_context ctx[1] )
+{
+
+    while(n_block--)
+    {
+        xor_block(iv, in);
+        if(aes_encrypt(iv, iv, ctx) != EXIT_SUCCESS)
+			return EXIT_FAILURE;
+        memcpy(out, iv, N_BLOCK);
+        in += N_BLOCK;
+        out += N_BLOCK;
+    }
+    return EXIT_SUCCESS;
+}
+
+#endif
+
+#if defined( AES_DEC_PREKEYED )
+
+/*  Decrypt a single block of 16 bytes */
+
+return_type aes_decrypt( const unsigned char in[N_BLOCK], unsigned char out[N_BLOCK], const aes_context ctx[1] )
+{
+    if( ctx->rnd )
+    {
+        uint_8t s1[N_BLOCK], r;
+        copy_and_key( s1, in, ctx->ksch + ctx->rnd * N_BLOCK );
+        inv_shift_sub_rows( s1 );
+
+        for( r = ctx->rnd ; --r ; )
+#if defined( VERSION_1 )
+        {
+            add_round_key( s1, ctx->ksch + r * N_BLOCK );
+            inv_mix_sub_columns( s1 );
+        }
+#else
+        {   uint_8t s2[N_BLOCK];
+            copy_and_key( s2, s1, ctx->ksch + r * N_BLOCK );
+            inv_mix_sub_columns( s1, s2 );
+        }
+#endif
+        copy_and_key( out, s1, ctx->ksch );
+    }
+    else
+        return (return_type)-1;
+    return 0;
+}
+
+/* CBC decrypt a number of blocks (input and return an IV) */
+
+return_type aes_cbc_decrypt( const unsigned char *in, unsigned char *out,
+                         int n_block, unsigned char iv[N_BLOCK], const aes_context ctx[1] )
+{
+    while(n_block--)
+    {   uint_8t tmp[N_BLOCK];
+
+        memcpy(tmp, in, N_BLOCK);
+        if(aes_decrypt(in, out, ctx) != EXIT_SUCCESS)
+			return EXIT_FAILURE;
+        xor_block(out, iv);
+        memcpy(iv, tmp, N_BLOCK);
+        in += N_BLOCK;
+        out += N_BLOCK;
+    }
+    return EXIT_SUCCESS;
+}
+
+#endif
+
+#if defined( AES_ENC_128_OTFK )
+
+/*  The 'on the fly' encryption key update for for 128 bit keys */
+
+static void update_encrypt_key_128( uint_8t k[N_BLOCK], uint_8t *rc )
+{   uint_8t cc;
+
+    k[0] ^= s_box(k[13]) ^ *rc;
+    k[1] ^= s_box(k[14]);
+    k[2] ^= s_box(k[15]);
+    k[3] ^= s_box(k[12]);
+    *rc = f2( *rc );
+
+    for(cc = 4; cc < 16; cc += 4 )
+    {
+        k[cc + 0] ^= k[cc - 4];
+        k[cc + 1] ^= k[cc - 3];
+        k[cc + 2] ^= k[cc - 2];
+        k[cc + 3] ^= k[cc - 1];
+    }
+}
+
+/*  Encrypt a single block of 16 bytes with 'on the fly' 128 bit keying */
+
+void aes_encrypt_128( const unsigned char in[N_BLOCK], unsigned char out[N_BLOCK],
+                     const unsigned char key[N_BLOCK], unsigned char o_key[N_BLOCK] )
+{   uint_8t s1[N_BLOCK], r, rc = 1;
+
+    if(o_key != key)
+        block_copy( o_key, key );
+    copy_and_key( s1, in, o_key );
+
+    for( r = 1 ; r < 10 ; ++r )
+#if defined( VERSION_1 )
+    {
+        mix_sub_columns( s1 );
+        update_encrypt_key_128( o_key, &rc );
+        add_round_key( s1, o_key );
+    }
+#else
+    {   uint_8t s2[N_BLOCK];
+        mix_sub_columns( s2, s1 );
+        update_encrypt_key_128( o_key, &rc );
+        copy_and_key( s1, s2, o_key );
+    }
+#endif
+
+    shift_sub_rows( s1 );
+    update_encrypt_key_128( o_key, &rc );
+    copy_and_key( out, s1, o_key );
+}
+
+#endif
+
+#if defined( AES_DEC_128_OTFK )
+
+/*  The 'on the fly' decryption key update for for 128 bit keys */
+
+static void update_decrypt_key_128( uint_8t k[N_BLOCK], uint_8t *rc )
+{   uint_8t cc;
+
+    for( cc = 12; cc > 0; cc -= 4 )
+    {
+        k[cc + 0] ^= k[cc - 4];
+        k[cc + 1] ^= k[cc - 3];
+        k[cc + 2] ^= k[cc - 2];
+        k[cc + 3] ^= k[cc - 1];
+    }
+    *rc = d2(*rc);
+    k[0] ^= s_box(k[13]) ^ *rc;
+    k[1] ^= s_box(k[14]);
+    k[2] ^= s_box(k[15]);
+    k[3] ^= s_box(k[12]);
+}
+
+/*  Decrypt a single block of 16 bytes with 'on the fly' 128 bit keying */
+
+void aes_decrypt_128( const unsigned char in[N_BLOCK], unsigned char out[N_BLOCK],
+                      const unsigned char key[N_BLOCK], unsigned char o_key[N_BLOCK] )
+{
+    uint_8t s1[N_BLOCK], r, rc = 0x6c;
+    if(o_key != key)
+        block_copy( o_key, key );
+
+    copy_and_key( s1, in, o_key );
+    inv_shift_sub_rows( s1 );
+
+    for( r = 10 ; --r ; )
+#if defined( VERSION_1 )
+    {
+        update_decrypt_key_128( o_key, &rc );
+        add_round_key( s1, o_key );
+        inv_mix_sub_columns( s1 );
+    }
+#else
+    {   uint_8t s2[N_BLOCK];
+        update_decrypt_key_128( o_key, &rc );
+        copy_and_key( s2, s1, o_key );
+        inv_mix_sub_columns( s1, s2 );
+    }
+#endif
+    update_decrypt_key_128( o_key, &rc );
+    copy_and_key( out, s1, o_key );
+}
+
+#endif
+
+#if defined( AES_ENC_256_OTFK )
+
+/*  The 'on the fly' encryption key update for for 256 bit keys */
+
+static void update_encrypt_key_256( uint_8t k[2 * N_BLOCK], uint_8t *rc )
+{   uint_8t cc;
+
+    k[0] ^= s_box(k[29]) ^ *rc;
+    k[1] ^= s_box(k[30]);
+    k[2] ^= s_box(k[31]);
+    k[3] ^= s_box(k[28]);
+    *rc = f2( *rc );
+
+    for(cc = 4; cc < 16; cc += 4)
+    {
+        k[cc + 0] ^= k[cc - 4];
+        k[cc + 1] ^= k[cc - 3];
+        k[cc + 2] ^= k[cc - 2];
+        k[cc + 3] ^= k[cc - 1];
+    }
+
+    k[16] ^= s_box(k[12]);
+    k[17] ^= s_box(k[13]);
+    k[18] ^= s_box(k[14]);
+    k[19] ^= s_box(k[15]);
+
+    for( cc = 20; cc < 32; cc += 4 )
+    {
+        k[cc + 0] ^= k[cc - 4];
+        k[cc + 1] ^= k[cc - 3];
+        k[cc + 2] ^= k[cc - 2];
+        k[cc + 3] ^= k[cc - 1];
+    }
+}
+
+/*  Encrypt a single block of 16 bytes with 'on the fly' 256 bit keying */
+
+void aes_encrypt_256( const unsigned char in[N_BLOCK], unsigned char out[N_BLOCK],
+                      const unsigned char key[2 * N_BLOCK], unsigned char o_key[2 * N_BLOCK] )
+{
+    uint_8t s1[N_BLOCK], r, rc = 1;
+    if(o_key != key)
+    {
+        block_copy( o_key, key );
+        block_copy( o_key + 16, key + 16 );
+    }
+    copy_and_key( s1, in, o_key );
+
+    for( r = 1 ; r < 14 ; ++r )
+#if defined( VERSION_1 )
+    {
+        mix_sub_columns(s1);
+        if( r & 1 )
+            add_round_key( s1, o_key + 16 );
+        else
+        {
+            update_encrypt_key_256( o_key, &rc );
+            add_round_key( s1, o_key );
+        }
+    }
+#else
+    {   uint_8t s2[N_BLOCK];
+        mix_sub_columns( s2, s1 );
+        if( r & 1 )
+            copy_and_key( s1, s2, o_key + 16 );
+        else
+        {
+            update_encrypt_key_256( o_key, &rc );
+            copy_and_key( s1, s2, o_key );
+        }
+    }
+#endif
+
+    shift_sub_rows( s1 );
+    update_encrypt_key_256( o_key, &rc );
+    copy_and_key( out, s1, o_key );
+}
+
+#endif
+
+#if defined( AES_DEC_256_OTFK )
+
+/*  The 'on the fly' encryption key update for for 256 bit keys */
+
+static void update_decrypt_key_256( uint_8t k[2 * N_BLOCK], uint_8t *rc )
+{   uint_8t cc;
+
+    for(cc = 28; cc > 16; cc -= 4)
+    {
+        k[cc + 0] ^= k[cc - 4];
+        k[cc + 1] ^= k[cc - 3];
+        k[cc + 2] ^= k[cc - 2];
+        k[cc + 3] ^= k[cc - 1];
+    }
+
+    k[16] ^= s_box(k[12]);
+    k[17] ^= s_box(k[13]);
+    k[18] ^= s_box(k[14]);
+    k[19] ^= s_box(k[15]);
+
+    for(cc = 12; cc > 0; cc -= 4)
+    {
+        k[cc + 0] ^= k[cc - 4];
+        k[cc + 1] ^= k[cc - 3];
+        k[cc + 2] ^= k[cc - 2];
+        k[cc + 3] ^= k[cc - 1];
+    }
+
+    *rc = d2(*rc);
+    k[0] ^= s_box(k[29]) ^ *rc;
+    k[1] ^= s_box(k[30]);
+    k[2] ^= s_box(k[31]);
+    k[3] ^= s_box(k[28]);
+}
+
+/*  Decrypt a single block of 16 bytes with 'on the fly'
+    256 bit keying
+*/
+void aes_decrypt_256( const unsigned char in[N_BLOCK], unsigned char out[N_BLOCK],
+                      const unsigned char key[2 * N_BLOCK], unsigned char o_key[2 * N_BLOCK] )
+{
+    uint_8t s1[N_BLOCK], r, rc = 0x80;
+
+    if(o_key != key)
+    {
+        block_copy( o_key, key );
+        block_copy( o_key + 16, key + 16 );
+    }
+
+    copy_and_key( s1, in, o_key );
+    inv_shift_sub_rows( s1 );
+
+    for( r = 14 ; --r ; )
+#if defined( VERSION_1 )
+    {
+        if( ( r & 1 ) )
+        {
+            update_decrypt_key_256( o_key, &rc );
+            add_round_key( s1, o_key + 16 );
+        }
+        else
+            add_round_key( s1, o_key );
+        inv_mix_sub_columns( s1 );
+    }
+#else
+    {   uint_8t s2[N_BLOCK];
+        if( ( r & 1 ) )
+        {
+            update_decrypt_key_256( o_key, &rc );
+            copy_and_key( s2, s1, o_key + 16 );
+        }
+        else
+            copy_and_key( s2, s1, o_key );
+        inv_mix_sub_columns( s1, s2 );
+    }
+#endif
+    copy_and_key( out, s1, o_key );
+}
+
+#endif
diff --git a/rtkbt/code/bt/stack/smp/aes.h b/rtkbt/code/bt/stack/smp/aes.h
new file mode 100755
index 0000000..dcfde93
--- /dev/null
+++ b/rtkbt/code/bt/stack/smp/aes.h
@@ -0,0 +1,162 @@
+/*
+ ---------------------------------------------------------------------------
+ Copyright (c) 1998-2008, Brian Gladman, Worcester, UK. All rights reserved.
+
+ LICENSE TERMS
+
+ The redistribution and use of this software (with or without changes)
+ is allowed without the payment of fees or royalties provided that:
+
+  1. source code distributions include the above copyright notice, this
+     list of conditions and the following disclaimer;
+
+  2. binary distributions include the above copyright notice, this list
+     of conditions and the following disclaimer in their documentation;
+
+  3. the name of the copyright holder is not used to endorse products
+     built using this software without specific written permission.
+
+ DISCLAIMER
+
+ This software is provided 'as is' with no explicit or implied warranties
+ in respect of its properties, including, but not limited to, correctness
+ and/or fitness for purpose.
+ ---------------------------------------------------------------------------
+ Issue 09/09/2006
+
+ This is an AES implementation that uses only 8-bit byte operations on the
+ cipher state.
+ */
+
+#ifndef AES_H
+#define AES_H
+
+#if 1
+#  define AES_ENC_PREKEYED  /* AES encryption with a precomputed key schedule  */
+#endif
+#if 1
+#  define AES_DEC_PREKEYED  /* AES decryption with a precomputed key schedule  */
+#endif
+#if 1
+#  define AES_ENC_128_OTFK  /* AES encryption with 'on the fly' 128 bit keying */
+#endif
+#if 1
+#  define AES_DEC_128_OTFK  /* AES decryption with 'on the fly' 128 bit keying */
+#endif
+#if 1
+#  define AES_ENC_256_OTFK  /* AES encryption with 'on the fly' 256 bit keying */
+#endif
+#if 1
+#  define AES_DEC_256_OTFK  /* AES decryption with 'on the fly' 256 bit keying */
+#endif
+
+#define N_ROW                   4
+#define N_COL                   4
+#define N_BLOCK   (N_ROW * N_COL)
+#define N_MAX_ROUNDS           14
+
+typedef unsigned char uint_8t;
+
+typedef uint_8t return_type;
+
+/*  Warning: The key length for 256 bit keys overflows a byte
+    (see comment below)
+*/
+
+typedef uint_8t length_type;
+
+typedef struct
+{   uint_8t ksch[(N_MAX_ROUNDS + 1) * N_BLOCK];
+    uint_8t rnd;
+} aes_context;
+
+/*  The following calls are for a precomputed key schedule
+
+    NOTE: If the length_type used for the key length is an
+    unsigned 8-bit character, a key length of 256 bits must
+    be entered as a length in bytes (valid inputs are hence
+    128, 192, 16, 24 and 32).
+*/
+
+#if defined( AES_ENC_PREKEYED ) || defined( AES_DEC_PREKEYED )
+
+return_type aes_set_key( const unsigned char key[],
+                         length_type keylen,
+                         aes_context ctx[1] );
+#endif
+
+#if defined( AES_ENC_PREKEYED )
+
+return_type aes_encrypt( const unsigned char in[N_BLOCK],
+                         unsigned char out[N_BLOCK],
+                         const aes_context ctx[1] );
+
+return_type aes_cbc_encrypt( const unsigned char *in,
+                         unsigned char *out,
+                         int n_block,
+                         unsigned char iv[N_BLOCK],
+                         const aes_context ctx[1] );
+#endif
+
+#if defined( AES_DEC_PREKEYED )
+
+return_type aes_decrypt( const unsigned char in[N_BLOCK],
+                         unsigned char out[N_BLOCK],
+                         const aes_context ctx[1] );
+
+return_type aes_cbc_decrypt( const unsigned char *in,
+                         unsigned char *out,
+                         int n_block,
+                         unsigned char iv[N_BLOCK],
+                         const aes_context ctx[1] );
+#endif
+
+/*  The following calls are for 'on the fly' keying.  In this case the
+    encryption and decryption keys are different.
+
+    The encryption subroutines take a key in an array of bytes in
+    key[L] where L is 16, 24 or 32 bytes for key lengths of 128,
+    192, and 256 bits respectively.  They then encrypts the input
+    data, in[] with this key and put the reult in the output array
+    out[].  In addition, the second key array, o_key[L], is used
+    to output the key that is needed by the decryption subroutine
+    to reverse the encryption operation.  The two key arrays can
+    be the same array but in this case the original key will be
+    overwritten.
+
+    In the same way, the decryption subroutines output keys that
+    can be used to reverse their effect when used for encryption.
+
+    Only 128 and 256 bit keys are supported in these 'on the fly'
+    modes.
+*/
+
+#if defined( AES_ENC_128_OTFK )
+void aes_encrypt_128( const unsigned char in[N_BLOCK],
+                      unsigned char out[N_BLOCK],
+                      const unsigned char key[N_BLOCK],
+                      uint_8t o_key[N_BLOCK] );
+#endif
+
+#if defined( AES_DEC_128_OTFK )
+void aes_decrypt_128( const unsigned char in[N_BLOCK],
+                      unsigned char out[N_BLOCK],
+                      const unsigned char key[N_BLOCK],
+                      unsigned char o_key[N_BLOCK] );
+#endif
+
+#if defined( AES_ENC_256_OTFK )
+void aes_encrypt_256( const unsigned char in[N_BLOCK],
+                      unsigned char out[N_BLOCK],
+                      const unsigned char key[2 * N_BLOCK],
+                      unsigned char o_key[2 * N_BLOCK] );
+#endif
+
+#if defined( AES_DEC_256_OTFK )
+void aes_decrypt_256( const unsigned char in[N_BLOCK],
+                      unsigned char out[N_BLOCK],
+                      const unsigned char key[2 * N_BLOCK],
+                      unsigned char o_key[2 * N_BLOCK] );
+#endif
+
+#endif
diff --git a/rtkbt/code/bt/stack/smp/p_256_curvepara.c b/rtkbt/code/bt/stack/smp/p_256_curvepara.c
new file mode 100755
index 0000000..131e769
--- /dev/null
+++ b/rtkbt/code/bt/stack/smp/p_256_curvepara.c
@@ -0,0 +1,80 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2006-2015 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+ /******************************************************************************
+  *
+  *  This file contains simple pairing algorithms
+  *
+  ******************************************************************************/
+
+#include <string.h>
+#include "p_256_ecc_pp.h"
+
+void p_256_init_curve(UINT32 keyLength)
+{
+    elliptic_curve_t *ec;
+
+    if(keyLength == KEY_LENGTH_DWORDS_P256)
+    {
+        ec = &curve_p256;
+
+        ec->p[7] = 0xFFFFFFFF;
+        ec->p[6] = 0x00000001;
+        ec->p[5] = 0x0;
+        ec->p[4] = 0x0;
+        ec->p[3] = 0x0;
+        ec->p[2] = 0xFFFFFFFF;
+        ec->p[1] = 0xFFFFFFFF;
+        ec->p[0] = 0xFFFFFFFF;
+
+        memset(ec->omega, 0, KEY_LENGTH_DWORDS_P256);
+        memset(ec->a, 0, KEY_LENGTH_DWORDS_P256);
+
+        ec->a_minus3 = TRUE;
+
+        //b
+        ec->b[7] =  0x5ac635d8;
+        ec->b[6] =  0xaa3a93e7;
+        ec->b[5] =  0xb3ebbd55;
+        ec->b[4] =  0x769886bc;
+        ec->b[3] =  0x651d06b0;
+        ec->b[2] =  0xcc53b0f6;
+        ec->b[1] =  0x3bce3c3e;
+        ec->b[0] =  0x27d2604b;
+
+        //base point
+        ec->G.x[7] =  0x6b17d1f2;
+        ec->G.x[6] =  0xe12c4247;
+        ec->G.x[5] =  0xf8bce6e5;
+        ec->G.x[4] =  0x63a440f2;
+        ec->G.x[3] =  0x77037d81;
+        ec->G.x[2] =  0x2deb33a0;
+        ec->G.x[1] =  0xf4a13945;
+        ec->G.x[0] =  0xd898c296;
+
+        ec->G.y[7] =  0x4fe342e2;
+        ec->G.y[6] =  0xfe1a7f9b;
+        ec->G.y[5] =  0x8ee7eb4a;
+        ec->G.y[4] =  0x7c0f9e16;
+        ec->G.y[3] =  0x2bce3357;
+        ec->G.y[2] =  0x6b315ece;
+        ec->G.y[1] =  0xcbb64068;
+        ec->G.y[0] =  0x37bf51f5;
+    }
+}
+
diff --git a/rtkbt/code/bt/stack/smp/p_256_ecc_pp.c b/rtkbt/code/bt/stack/smp/p_256_ecc_pp.c
new file mode 100755
index 0000000..2eaebd4
--- /dev/null
+++ b/rtkbt/code/bt/stack/smp/p_256_ecc_pp.c
@@ -0,0 +1,262 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2006-2015 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+ /******************************************************************************
+  *
+  *  This file contains simple pairing algorithms using Elliptic Curve Cryptography for private public key
+  *
+  ******************************************************************************/
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "p_256_ecc_pp.h"
+#include "p_256_multprecision.h"
+
+elliptic_curve_t curve;
+elliptic_curve_t curve_p256;
+
+static void p_256_init_point(Point *q)
+{
+    memset(q, 0, sizeof(Point));
+}
+
+static void p_256_copy_point(Point *q, Point *p)
+{
+    memcpy(q, p, sizeof(Point));
+}
+
+// q=2q
+static void ECC_Double(Point *q, Point *p, uint32_t keyLength)
+{
+    DWORD t1[KEY_LENGTH_DWORDS_P256];
+    DWORD t2[KEY_LENGTH_DWORDS_P256];
+    DWORD t3[KEY_LENGTH_DWORDS_P256];
+    DWORD *x1;
+    DWORD *x3;
+    DWORD *y1;
+    DWORD *y3;
+    DWORD *z1;
+    DWORD *z3;
+
+    if (multiprecision_iszero(p->z, keyLength))
+    {
+        multiprecision_init(q->z, keyLength);
+        return;                                     // return infinity
+    }
+
+    x1=p->x; y1=p->y; z1=p->z;
+    x3=q->x; y3=q->y; z3=q->z;
+
+    multiprecision_mersenns_squa_mod(t1, z1, keyLength);  // t1=z1^2
+    multiprecision_sub_mod(t2, x1, t1, keyLength);  // t2=x1-t1
+    multiprecision_add_mod(t1, x1, t1, keyLength);  // t1=x1+t1
+    multiprecision_mersenns_mult_mod(t2, t1, t2, keyLength);  // t2=t2*t1
+    multiprecision_lshift_mod(t3, t2, keyLength);
+    multiprecision_add_mod(t2, t3, t2, keyLength);  // t2=3t2
+
+    multiprecision_mersenns_mult_mod(z3, y1, z1, keyLength);  // z3=y1*z1
+    multiprecision_lshift_mod(z3, z3, keyLength);
+
+    multiprecision_mersenns_squa_mod(y3, y1, keyLength);  // y3=y1^2
+    multiprecision_lshift_mod(y3, y3, keyLength);
+    multiprecision_mersenns_mult_mod(t3, y3, x1, keyLength);  // t3=y3*x1=x1*y1^2
+    multiprecision_lshift_mod(t3, t3, keyLength);
+    multiprecision_mersenns_squa_mod(y3, y3, keyLength);  // y3=y3^2=y1^4
+    multiprecision_lshift_mod(y3, y3, keyLength);
+
+    multiprecision_mersenns_squa_mod(x3, t2, keyLength);  // x3=t2^2
+    multiprecision_lshift_mod(t1, t3, keyLength);                // t1=2t3
+    multiprecision_sub_mod(x3, x3, t1, keyLength);               // x3=x3-t1
+    multiprecision_sub_mod(t1, t3, x3, keyLength);               // t1=t3-x3
+    multiprecision_mersenns_mult_mod(t1, t1, t2, keyLength);  // t1=t1*t2
+    multiprecision_sub_mod(y3, t1, y3, keyLength);               // y3=t1-y3
+}
+
+// q=q+p,     zp must be 1
+static void ECC_Add(Point *r, Point *p, Point *q, uint32_t keyLength)
+{
+    DWORD t1[KEY_LENGTH_DWORDS_P256];
+    DWORD t2[KEY_LENGTH_DWORDS_P256];
+    DWORD *x1;
+    DWORD *x2;
+    DWORD *x3;
+    DWORD *y1;
+    DWORD *y2;
+    DWORD *y3;
+    DWORD *z1;
+    DWORD *z2;
+    DWORD *z3;
+
+    x1=p->x; y1=p->y; z1=p->z;
+    x2=q->x; y2=q->y; z2=q->z;
+    x3=r->x; y3=r->y; z3=r->z;
+
+    // if Q=infinity, return p
+    if (multiprecision_iszero(z2, keyLength))
+    {
+        p_256_copy_point(r, p);
+        return;
+    }
+
+    // if P=infinity, return q
+    if (multiprecision_iszero(z1, keyLength))
+    {
+        p_256_copy_point(r, q);
+        return;
+    }
+
+    multiprecision_mersenns_squa_mod(t1, z1, keyLength);      // t1=z1^2
+    multiprecision_mersenns_mult_mod(t2, z1, t1, keyLength);  // t2=t1*z1
+    multiprecision_mersenns_mult_mod(t1, x2, t1, keyLength);  // t1=t1*x2
+    multiprecision_mersenns_mult_mod(t2, y2, t2, keyLength);  // t2=t2*y2
+
+    multiprecision_sub_mod(t1, t1, x1, keyLength);  // t1=t1-x1
+    multiprecision_sub_mod(t2, t2, y1, keyLength);  // t2=t2-y1
+
+    if (multiprecision_iszero(t1, keyLength))
+    {
+        if (multiprecision_iszero(t2, keyLength))
+        {
+            ECC_Double(r, q, keyLength) ;
+            return;
+        }
+        else
+        {
+            multiprecision_init(z3, keyLength);
+            return;                             // return infinity
+        }
+    }
+
+    multiprecision_mersenns_mult_mod(z3, z1, t1, keyLength);  // z3=z1*t1
+    multiprecision_mersenns_squa_mod(y3, t1, keyLength);      // t3=t1^2
+    multiprecision_mersenns_mult_mod(z1, y3, t1, keyLength);  // t4=t3*t1
+    multiprecision_mersenns_mult_mod(y3, y3, x1, keyLength);  // t3=t3*x1
+    multiprecision_lshift_mod(t1, y3, keyLength);            // t1=2*t3
+    multiprecision_mersenns_squa_mod(x3, t2, keyLength);      // x3=t2^2
+    multiprecision_sub_mod(x3, x3, t1, keyLength);           // x3=x3-t1
+    multiprecision_sub_mod(x3, x3, z1, keyLength);           // x3=x3-t4
+    multiprecision_sub_mod(y3, y3, x3, keyLength);           // t3=t3-x3
+    multiprecision_mersenns_mult_mod(y3, y3, t2, keyLength);  // t3=t3*t2
+    multiprecision_mersenns_mult_mod(z1, z1, y1, keyLength);  // t4=t4*t1
+    multiprecision_sub_mod(y3, y3, z1, keyLength);
+}
+
+// Computing the Non-Adjacent Form of a positive integer
+static void ECC_NAF(uint8_t *naf, uint32_t *NumNAF, DWORD *k, uint32_t keyLength)
+{
+    uint32_t sign;
+    int i=0;
+    int j;
+    uint32_t var;
+
+    while ((var = multiprecision_most_signbits(k, keyLength))>=1)
+    {
+        if (k[0] & 0x01)  // k is odd
+        {
+            sign = (k[0] & 0x03);  // 1 or 3
+
+            // k = k-naf[i]
+            if (sign == 1)
+                k[0] = k[0] & 0xFFFFFFFE;
+            else
+            {
+                k[0] = k[0] + 1;
+                if (k[0] == 0)  //overflow
+                {
+                    j = 1;
+                    do
+                    {
+                        k[j]++;
+                    } while (k[j++]==0);  //overflow
+                }
+            }
+        }
+        else
+            sign = 0;
+
+        multiprecision_rshift(k, k, keyLength);
+        naf[i / 4] |= (sign) << ((i % 4) * 2);
+        i++;
+    }
+
+    *NumNAF=i;
+}
+
+// Binary Non-Adjacent Form for point multiplication
+void ECC_PointMult_Bin_NAF(Point *q, Point *p, DWORD *n, uint32_t keyLength)
+{
+    uint32_t sign;
+    UINT8 naf[256 / 4 +1];
+    uint32_t NumNaf;
+    Point minus_p;
+    Point r;
+    DWORD *modp;
+
+    if (keyLength == KEY_LENGTH_DWORDS_P256)
+    {
+        modp = curve_p256.p;
+    }
+    else
+    {
+        modp = curve.p;
+    }
+
+    p_256_init_point(&r);
+    multiprecision_init(p->z, keyLength);
+    p->z[0] = 1;
+
+    // initialization
+    p_256_init_point(q);
+
+    // -p
+    multiprecision_copy(minus_p.x, p->x, keyLength);
+    multiprecision_sub(minus_p.y, modp, p->y, keyLength);
+
+    multiprecision_init(minus_p.z, keyLength);
+    minus_p.z[0]=1;
+
+    // NAF
+    memset(naf, 0, sizeof(naf));
+    ECC_NAF(naf, &NumNaf, n, keyLength);
+
+    for (int i = NumNaf - 1; i >= 0; i--)
+    {
+        p_256_copy_point(&r, q);
+        ECC_Double(q, &r, keyLength);
+        sign = (naf[i / 4] >> ((i % 4) * 2)) & 0x03;
+
+        if (sign == 1)
+        {
+            p_256_copy_point(&r, q);
+            ECC_Add(q, &r, p, keyLength);
+        }
+        else if (sign == 3)
+        {
+            p_256_copy_point(&r, q);
+            ECC_Add(q, &r, &minus_p, keyLength);
+        }
+    }
+
+    multiprecision_inv_mod(minus_p.x, q->z, keyLength);
+    multiprecision_mersenns_squa_mod(q->z, minus_p.x, keyLength);
+    multiprecision_mersenns_mult_mod(q->x, q->x, q->z, keyLength);
+    multiprecision_mersenns_mult_mod(q->z, q->z, minus_p.x, keyLength);
+    multiprecision_mersenns_mult_mod(q->y, q->y, q->z, keyLength);
+}
+
+
diff --git a/rtkbt/code/bt/stack/smp/p_256_ecc_pp.h b/rtkbt/code/bt/stack/smp/p_256_ecc_pp.h
new file mode 100755
index 0000000..fd3dc64
--- /dev/null
+++ b/rtkbt/code/bt/stack/smp/p_256_ecc_pp.h
@@ -0,0 +1,65 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2006-2015 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+ /******************************************************************************
+  *
+  *  This file contains simple pairing algorithms using Elliptic Curve Cryptography for private public key
+  *
+  ******************************************************************************/
+
+#pragma once
+
+#include "p_256_multprecision.h"
+
+typedef unsigned long  DWORD;
+
+typedef struct {
+    DWORD x[KEY_LENGTH_DWORDS_P256];
+    DWORD y[KEY_LENGTH_DWORDS_P256];
+    DWORD z[KEY_LENGTH_DWORDS_P256];
+} Point;
+
+typedef struct {
+    // curve's coefficients
+    DWORD a[KEY_LENGTH_DWORDS_P256];
+    DWORD b[KEY_LENGTH_DWORDS_P256];
+
+    //whether a is -3
+    int a_minus3;
+
+    // prime modulus
+    DWORD p[KEY_LENGTH_DWORDS_P256];
+
+    // Omega, p = 2^m -omega
+    DWORD omega[KEY_LENGTH_DWORDS_P256];
+
+    // base point, a point on E of order r
+    Point G;
+
+} elliptic_curve_t;
+
+extern elliptic_curve_t curve;
+extern elliptic_curve_t curve_p256;
+
+void ECC_PointMult_Bin_NAF(Point *q, Point *p, DWORD *n, uint32_t keyLength);
+
+#define ECC_PointMult(q, p, n, keyLength)  ECC_PointMult_Bin_NAF(q, p, n, keyLength)
+
+void p_256_init_curve(UINT32 keyLength);
+
+
diff --git a/rtkbt/code/bt/stack/smp/p_256_multprecision.c b/rtkbt/code/bt/stack/smp/p_256_multprecision.c
new file mode 100755
index 0000000..f939809
--- /dev/null
+++ b/rtkbt/code/bt/stack/smp/p_256_multprecision.c
@@ -0,0 +1,704 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2006-2015 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+ /******************************************************************************
+  *
+  *  This file contains simple pairing algorithms
+  *
+  ******************************************************************************/
+
+#include <string.h>
+#include "bt_target.h"
+#include "p_256_ecc_pp.h"
+#include "p_256_multprecision.h"
+
+void multiprecision_init(DWORD *c, uint32_t keyLength)
+{
+    for (uint32_t i = 0; i < keyLength; i++)
+        c[i] = 0;
+}
+
+void multiprecision_copy(DWORD *c, DWORD *a, uint32_t keyLength)
+{
+    for (uint32_t i = 0; i < keyLength; i++)
+        c[i] = a[i];
+}
+
+int multiprecision_compare(DWORD *a, DWORD *b, uint32_t keyLength)
+{
+    for (int i = keyLength - 1; i >= 0; i--)
+    {
+        if (a[i] > b[i])
+            return 1;
+        if (a[i] < b[i])
+            return -1;
+    }
+    return 0;
+}
+
+int multiprecision_iszero(DWORD *a, uint32_t keyLength)
+{
+    for (uint32_t i = 0; i < keyLength; i++)
+        if (a[i])
+            return 0;
+
+    return 1;
+}
+
+UINT32 multiprecision_dword_bits(DWORD a)
+{
+    uint32_t i;
+    for (i = 0; i < DWORD_BITS; i++, a >>= 1)
+        if (a == 0)
+            break;
+
+    return i;
+}
+
+UINT32 multiprecision_most_signdwords(DWORD *a, uint32_t keyLength)
+{
+    int  i;
+    for (i = keyLength - 1; i >= 0; i--)
+        if (a[i])
+           break;
+    return (i + 1);
+}
+
+UINT32 multiprecision_most_signbits(DWORD *a, uint32_t keyLength)
+{
+    int aMostSignDWORDs;
+
+    aMostSignDWORDs = multiprecision_most_signdwords(a, keyLength);
+    if (aMostSignDWORDs == 0)
+        return 0;
+
+    return (((aMostSignDWORDs-1) << DWORD_BITS_SHIFT) +
+            multiprecision_dword_bits(a[aMostSignDWORDs-1]) );
+}
+
+DWORD multiprecision_add(DWORD *c, DWORD *a, DWORD *b, uint32_t keyLength)
+{
+    DWORD carrier;
+    DWORD temp;
+
+    carrier=0;
+    for (uint32_t i = 0; i < keyLength; i++)
+    {
+        temp = a[i] + carrier;
+        carrier = (temp < carrier);
+        temp += b[i];
+        carrier |= (temp < b[i]);
+        c[i]=temp;
+    }
+
+    return carrier;
+}
+
+//c=a-b
+DWORD multiprecision_sub(DWORD *c, DWORD *a, DWORD *b, uint32_t keyLength)
+{
+    DWORD borrow;
+    DWORD temp;
+
+    borrow=0;
+    for (uint32_t i=0; i < keyLength; i++)
+    {
+        temp = a[i] - borrow;
+        borrow = (temp > a[i]);
+        c[i] = temp - b[i];
+        borrow |= (c[i] > temp);
+    }
+
+    return borrow;
+}
+
+// c = a << 1
+void multiprecision_lshift_mod(DWORD * c, DWORD * a, uint32_t keyLength)
+{
+    DWORD carrier;
+    DWORD *modp;
+
+    if (keyLength == KEY_LENGTH_DWORDS_P192)
+    {
+        modp = curve.p;
+    }
+    else if (keyLength == KEY_LENGTH_DWORDS_P256)
+    {
+        modp = curve_p256.p;
+    }
+    else
+        return;
+
+    carrier = multiprecision_lshift(c, a, keyLength);
+    if (carrier)
+    {
+        multiprecision_sub(c, c, modp, keyLength);
+    }
+    else if (multiprecision_compare(c, modp, keyLength)>=0)
+    {
+        multiprecision_sub(c, c, modp, keyLength);
+    }
+}
+
+// c=a>>1
+void multiprecision_rshift(DWORD * c, DWORD * a, uint32_t keyLength)
+{
+    int j;
+    DWORD b = 1;
+
+    j = DWORD_BITS - b;
+
+    DWORD carrier = 0;
+    DWORD temp;
+    for (int i = keyLength-1; i >= 0; i--)
+    {
+        temp = a[i]; // in case of c==a
+        c[i] = (temp >> b) | carrier;
+        carrier = temp << j;
+    }
+}
+
+// Curve specific optimization when p is a pseudo-Mersenns prime, p=2^(KEY_LENGTH_BITS)-omega
+void multiprecision_mersenns_mult_mod(DWORD *c, DWORD *a, DWORD *b, uint32_t keyLength)
+{
+    DWORD cc[2*KEY_LENGTH_DWORDS_P256];
+
+    multiprecision_mult(cc, a, b, keyLength);
+    if (keyLength == 6)
+    {
+        multiprecision_fast_mod(c, cc);
+    }
+    else if (keyLength == 8)
+    {
+        multiprecision_fast_mod_P256(c, cc);
+    }
+}
+
+// Curve specific optimization when p is a pseudo-Mersenns prime
+void multiprecision_mersenns_squa_mod(DWORD *c, DWORD *a, uint32_t keyLength)
+{
+    multiprecision_mersenns_mult_mod(c, a, a, keyLength);
+}
+
+// c=(a+b) mod p, b<p, a<p
+void multiprecision_add_mod(DWORD *c, DWORD *a, DWORD *b, uint32_t keyLength)
+{
+    DWORD carrier;
+    DWORD *modp;
+
+    if (keyLength == KEY_LENGTH_DWORDS_P192)
+    {
+        modp = curve.p;
+    }
+    else if (keyLength == KEY_LENGTH_DWORDS_P256)
+    {
+        modp = curve_p256.p;
+    }
+    else
+        return;
+
+    carrier = multiprecision_add(c, a, b, keyLength);
+    if (carrier)
+    {
+        multiprecision_sub(c, c, modp, keyLength);
+    }
+    else if (multiprecision_compare(c, modp, keyLength) >= 0)
+    {
+        multiprecision_sub(c, c, modp, keyLength);
+    }
+}
+
+// c=(a-b) mod p, a<p, b<p
+void multiprecision_sub_mod(DWORD *c, DWORD *a, DWORD *b, uint32_t keyLength)
+{
+    DWORD borrow;
+    DWORD *modp;
+
+    if (keyLength == KEY_LENGTH_DWORDS_P192)
+    {
+        modp = curve.p;
+    }
+    else if(keyLength == KEY_LENGTH_DWORDS_P256)
+    {
+        modp = curve_p256.p;
+    }
+    else
+        return;
+
+    borrow = multiprecision_sub(c, a, b, keyLength);
+    if(borrow)
+        multiprecision_add(c, c, modp, keyLength);
+}
+
+// c=a<<b, b<DWORD_BITS, c has a buffer size of NumDWORDs+1
+DWORD multiprecision_lshift(DWORD * c, DWORD * a, uint32_t keyLength)
+{
+    int j;
+    uint32_t b = 1;
+    j = DWORD_BITS - b;
+
+    DWORD carrier = 0;
+    DWORD temp;
+
+    for (uint32_t i = 0; i < keyLength; i++)
+    {
+        temp = a[i];  // in case c==a
+        c[i] = (temp << b) | carrier;
+        carrier = temp >> j;
+    }
+
+    return carrier;
+}
+
+// c=a*b; c must have a buffer of 2*Key_LENGTH_DWORDS, c != a != b
+void multiprecision_mult(DWORD *c, DWORD *a, DWORD *b, uint32_t keyLength)
+{
+    DWORD W;
+    DWORD U;
+    DWORD V;
+
+    U = V = W = 0;
+    multiprecision_init(c, keyLength);
+
+    //assume little endian right now
+    for (uint32_t i = 0; i < keyLength; i++)
+    {
+        U = 0;
+        for (uint32_t j = 0; j < keyLength; j++)
+        {
+            uint64_t result;
+            result = ((UINT64)a[i]) * ((uint64_t) b[j]);
+            W = result >> 32;
+            V = a[i] * b[j];
+            V = V + U;
+            U = (V < U);
+            U += W;
+            V = V + c[i+j];
+            U += (V < c[i+j]);
+            c[i+j] = V;
+        }
+        c[i+keyLength] = U;
+    }
+}
+
+void multiprecision_fast_mod(DWORD *c, DWORD *a)
+{
+    DWORD U;
+    DWORD V;
+    DWORD *modp = curve.p;
+
+    c[0] = a[0] + a[6];
+    U=c[0] < a[0];
+    c[0] += a[10];
+    U += c[0] < a[10];
+
+    c[1] = a[1] + U;
+    U = c[1] < a[1];
+    c[1] += a[7];
+    U += c[1] < a[7];
+    c[1] += a[11];
+    U += c[1]< a[11];
+
+    c[2] = a[2] + U;
+    U = c[2] < a[2];
+    c[2] += a[6];
+    U += c[2] < a[6];
+    c[2] += a[8];
+    U += c[2] < a[8];
+    c[2] += a[10];
+    U += c[2] < a[10];
+
+    c[3] = a[3]+U;
+    U = c[3] < a[3];
+    c[3] += a[7];
+    U += c[3] < a[7];
+    c[3] += a[9];
+    U += c[3] < a[9];
+    c[3] += a[11];
+    U += c[3] < a[11];
+
+    c[4] = a[4]+U;
+    U = c[4] < a[4];
+    c[4] += a[8];
+    U += c[4] < a[8];
+    c[4] += a[10];
+    U += c[4] < a[10];
+
+    c[5] = a[5]+U;
+    U = c[5] < a[5];
+    c[5] += a[9];
+    U += c[5] < a[9];
+    c[5] += a[11];
+    U += c[5] < a[11];
+
+    c[0] += U;
+    V = c[0] < U;
+    c[1] += V;
+    V = c[1] < V;
+    c[2] += V;
+    V = c[2] < V;
+    c[2] += U;
+    V = c[2] < U;
+    c[3] += V;
+    V = c[3] < V;
+    c[4] += V;
+    V = c[4] < V;
+    c[5] += V;
+    V = c[5] < V;
+
+    if (V)
+    {
+        multiprecision_sub(c, c, modp, KEY_LENGTH_DWORDS_P192);
+    }
+    else if(multiprecision_compare(c, modp, KEY_LENGTH_DWORDS_P192) >= 0)
+    {
+        multiprecision_sub(c, c, modp, KEY_LENGTH_DWORDS_P192);
+    }
+}
+
+void multiprecision_fast_mod_P256(DWORD *c, DWORD *a)
+{
+    DWORD A;
+    DWORD B;
+    DWORD C;
+    DWORD D;
+    DWORD E;
+    DWORD F;
+    DWORD G;
+    uint8_t UA;
+    uint8_t UB;
+    uint8_t UC;
+    uint8_t UD;
+    uint8_t UE;
+    uint8_t UF;
+    uint8_t UG;
+    DWORD U;
+    DWORD *modp = curve_p256.p;
+
+    // C = a[13] + a[14] + a[15];
+    C = a[13];
+    C += a[14];
+    UC = (C < a[14]);
+    C += a[15];
+    UC += (C < a[15]);
+
+    // E = a[8] + a[9];
+    E = a[8];
+    E += a[9];
+    UE = (E < a[9]);
+
+    // F = a[9] + a[10];
+    F = a[9];
+    F += a[10];
+    UF = (F < a[10]);
+
+    // G = a[10] + a[11]
+    G = a[10];
+    G += a[11];
+    UG = (G < a[11]);
+
+    // B = a[12] + a[13] + a[14] + a[15] == C + a[12]
+    B = C;
+    UB = UC;
+    B += a[12];
+    UB += (B < a[12]);
+
+    // A = a[11] + a[12] + a[13] + a[14] == B + a[11] - a[15]
+    A = B;
+    UA = UB;
+    A += a[11];
+    UA += (A < a[11]);
+    UA -= (A < a[15]);
+    A -= a[15];
+
+    // D = a[10] + a[11] + a[12] + a[13] == A + a[10] - a[14]
+    D = A;
+    UD = UA;
+    D += a[10];
+    UD += (D < a[10]);
+    UD -= (D < a[14]);
+    D -= a[14];
+
+    c[0] = a[0];
+    c[0] += E;
+    U = (c[0] < E);
+    U += UE;
+    U -= (c[0] < A);
+    U -= UA;
+    c[0] -= A;
+
+    if (U & 0x80000000)
+    {
+        DWORD UU;
+        UU = 0 - U;
+        U = (a[1] < UU);
+        c[1] = a[1] - UU;
+    }
+    else
+    {
+        c[1] = a[1] + U;
+        U = (c[1] < a[1]);
+    }
+
+    c[1] += F;
+    U += (c[1] < F);
+    U += UF;
+    U -= (c[1] < B);
+    U -= UB;
+    c[1] -= B;
+
+    if (U & 0x80000000)
+    {
+        DWORD UU;
+        UU = 0 - U;
+        U = (a[2] < UU);
+        c[2] = a[2] - UU;
+    }
+    else
+    {
+        c[2] = a[2] + U;
+        U = (c[2] < a[2]);
+    }
+
+    c[2] += G;
+    U += (c[2] < G);
+    U += UG;
+    U -= (c[2] < C);
+    U -= UC;
+    c[2] -= C;
+
+    if (U & 0x80000000)
+    {
+        DWORD UU;
+        UU = 0 - U;
+        U = (a[3] < UU);
+        c[3] = a[3] - UU;
+    }
+    else
+    {
+        c[3] = a[3] + U;
+        U = (c[3] < a[3]);
+    }
+
+    c[3] += A;
+    U += (c[3] < A);
+    U += UA;
+    c[3] += a[11];
+    U += (c[3] < a[11]);
+    c[3] += a[12];
+    U += (c[3] < a[12]);
+    U -= (c[3] < a[14]);
+    c[3] -= a[14];
+    U -= (c[3] < a[15]);
+    c[3] -= a[15];
+    U -= (c[3] < E);
+    U -= UE;
+    c[3] -= E;
+
+    if (U & 0x80000000)
+    {
+        DWORD UU;
+        UU = 0 - U;
+        U = (a[4] < UU);
+        c[4] = a[4] - UU;
+    }
+    else
+    {
+        c[4] = a[4] + U;
+        U = (c[4] < a[4]);
+    }
+
+    c[4] += B;
+    U += (c[4] < B);
+    U += UB;
+    U -= (c[4] < a[15]);
+    c[4] -= a[15];
+    c[4] += a[12];
+    U += (c[4] < a[12]);
+    c[4] += a[13];
+    U += (c[4] < a[13]);
+    U -= (c[4] < F);
+    U -= UF;
+    c[4] -= F;
+
+    if (U & 0x80000000)
+    {
+        DWORD UU;
+        UU = 0 - U;
+        U = (a[5] < UU);
+        c[5] = a[5] - UU;
+    }
+    else
+    {
+        c[5] = a[5] + U;
+        U = (c[5] < a[5]);
+    }
+
+    c[5] += C;
+    U += (c[5] < C);
+    U += UC;
+    c[5] += a[13];
+    U += (c[5] < a[13]);
+    c[5] += a[14];
+    U += (c[5] < a[14]);
+    U -= (c[5] < G);
+    U -= UG;
+    c[5] -= G;
+
+    if (U & 0x80000000)
+    {
+        DWORD UU;
+        UU = 0 - U;
+        U = (a[6] < UU);
+        c[6] = a[6] - UU;
+    }
+    else
+    {
+        c[6] = a[6] + U;
+        U = (c[6] < a[6]);
+    }
+
+    c[6] += C;
+    U += (c[6] < C);
+    U += UC;
+    c[6] += a[14];
+    U += (c[6] < a[14]);
+    c[6] += a[14];
+    U += (c[6] < a[14]);
+    c[6] += a[15];
+    U += (c[6] < a[15]);
+    U -= (c[6] < E);
+    U -= UE;
+    c[6] -= E;
+
+    if (U & 0x80000000)
+    {
+        DWORD UU;
+        UU = 0 - U;
+        U = (a[7] < UU);
+        c[7] = a[7] - UU;
+    }
+    else
+    {
+        c[7] = a[7] + U;
+        U = (c[7] < a[7]);
+    }
+
+    c[7] += a[15];
+    U += (c[7] < a[15]);
+    c[7] += a[15];
+    U += (c[7] < a[15]);
+    c[7] += a[15];
+    U += (c[7] < a[15]);
+    c[7] += a[8];
+    U += (c[7] < a[8]);
+    U -= (c[7] < D);
+    U -= UD;
+    c[7] -= D;
+
+    if (U & 0x80000000)
+    {
+        while (U)
+        {
+            multiprecision_add(c, c, modp, KEY_LENGTH_DWORDS_P256);
+            U++;
+        }
+    }
+    else if (U)
+    {
+        while (U)
+        {
+            multiprecision_sub(c, c, modp, KEY_LENGTH_DWORDS_P256);
+            U--;
+        }
+    }
+
+    if (multiprecision_compare(c, modp, KEY_LENGTH_DWORDS_P256)>=0)
+        multiprecision_sub(c, c, modp, KEY_LENGTH_DWORDS_P256);
+
+}
+
+void multiprecision_inv_mod(DWORD *aminus, DWORD *u, uint32_t keyLength)
+{
+    DWORD v[KEY_LENGTH_DWORDS_P256];
+    DWORD A[KEY_LENGTH_DWORDS_P256+1];
+    DWORD C[KEY_LENGTH_DWORDS_P256+1];
+    DWORD *modp;
+
+    if(keyLength == KEY_LENGTH_DWORDS_P256)
+    {
+        modp = curve_p256.p;
+    }
+    else
+    {
+        modp = curve.p;
+    }
+
+    multiprecision_copy(v, modp, keyLength);
+    multiprecision_init(A, keyLength);
+    multiprecision_init(C, keyLength);
+    A[0] = 1;
+
+    while (!multiprecision_iszero(u, keyLength))
+    {
+        while (!(u[0] & 0x01))  // u is even
+        {
+            multiprecision_rshift(u, u, keyLength);
+            if(!(A[0] & 0x01))  // A is even
+                multiprecision_rshift(A, A, keyLength);
+            else
+            {
+                A[keyLength]=multiprecision_add(A, A, modp, keyLength); // A =A+p
+                multiprecision_rshift(A, A, keyLength);
+                A[keyLength-1] |= (A[keyLength]<<31);
+            }
+        }
+
+        while (!(v[0] & 0x01))  // v is even
+        {
+            multiprecision_rshift(v, v, keyLength);
+            if (!(C[0] & 0x01))  // C is even
+            {
+                multiprecision_rshift(C, C, keyLength);
+            }
+            else
+            {
+                C[keyLength] = multiprecision_add(C, C, modp, keyLength); // C =C+p
+                multiprecision_rshift(C, C, keyLength);
+                C[keyLength-1] |= (C[keyLength] << 31);
+            }
+        }
+
+        if (multiprecision_compare(u, v, keyLength) >= 0)
+        {
+            multiprecision_sub(u, u, v, keyLength);
+            multiprecision_sub_mod(A, A, C, keyLength);
+        }
+        else
+        {
+            multiprecision_sub(v, v, u, keyLength);
+            multiprecision_sub_mod(C, C, A, keyLength);
+        }
+    }
+
+    if (multiprecision_compare(C, modp, keyLength) >= 0)
+        multiprecision_sub(aminus, C, modp, keyLength);
+    else
+        multiprecision_copy(aminus, C, keyLength);
+}
+
diff --git a/rtkbt/code/bt/stack/smp/p_256_multprecision.h b/rtkbt/code/bt/stack/smp/p_256_multprecision.h
new file mode 100755
index 0000000..0d1a964
--- /dev/null
+++ b/rtkbt/code/bt/stack/smp/p_256_multprecision.h
@@ -0,0 +1,62 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2006-2015 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+ /******************************************************************************
+  *
+  *  This file contains simple pairing algorithms
+  *
+  ******************************************************************************/
+#pragma once
+
+#include "bt_types.h"
+
+/* Type definitions */
+typedef unsigned long  DWORD;
+
+#define DWORD_BITS      32
+#define DWORD_BYTES     4
+#define DWORD_BITS_SHIFT 5
+
+#define KEY_LENGTH_DWORDS_P192 6
+#define KEY_LENGTH_DWORDS_P256 8
+/* Arithmetic Operations */
+
+int multiprecision_compare(DWORD *a, DWORD *b, uint32_t keyLength);
+int multiprecision_iszero(DWORD *a, uint32_t keyLength);
+void multiprecision_init(DWORD *c, uint32_t keyLength);
+void multiprecision_copy(DWORD *c, DWORD *a, uint32_t keyLength);
+UINT32 multiprecision_dword_bits (DWORD a);
+UINT32 multiprecision_most_signdwords(DWORD *a, uint32_t keyLength);
+UINT32 multiprecision_most_signbits(DWORD *a, uint32_t keyLength);
+void multiprecision_inv_mod(DWORD *aminus, DWORD *a, uint32_t keyLength);
+DWORD multiprecision_add(DWORD *c, DWORD *a, DWORD *b, uint32_t keyLength); // c=a+b
+void multiprecision_add_mod(DWORD *c, DWORD *a, DWORD *b, uint32_t keyLength);
+DWORD multiprecision_sub(DWORD *c, DWORD *a, DWORD *b, uint32_t keyLength); // c=a-b
+void multiprecision_sub_mod(DWORD *c, DWORD *a, DWORD *b, uint32_t keyLength);
+void multiprecision_rshift(DWORD * c, DWORD * a, uint32_t keyLength);  // c=a>>1, return carrier
+void multiprecision_lshift_mod(DWORD * c, DWORD * a, uint32_t keyLength); // c=a<<b, return carrier
+DWORD multiprecision_lshift(DWORD * c, DWORD * a, uint32_t keyLength);  // c=a<<b, return carrier
+void multiprecision_mult(DWORD *c, DWORD *a, DWORD *b, uint32_t keyLength); // c=a*b
+void multiprecision_mersenns_mult_mod(DWORD *c, DWORD *a, DWORD *b, uint32_t keyLength);
+void multiprecision_mersenns_squa_mod(DWORD *c, DWORD *a, uint32_t keyLength);
+DWORD multiprecision_lshift(DWORD * c, DWORD * a, uint32_t keyLength);
+void multiprecision_mult(DWORD *c, DWORD *a, DWORD *b, uint32_t keyLength);
+void multiprecision_fast_mod(DWORD *c, DWORD *a);
+void multiprecision_fast_mod_P256(DWORD *c, DWORD *a);
+
+
diff --git a/rtkbt/code/bt/stack/smp/smp_act.c b/rtkbt/code/bt/stack/smp/smp_act.c
new file mode 100755
index 0000000..5afd833
--- /dev/null
+++ b/rtkbt/code/bt/stack/smp/smp_act.c
@@ -0,0 +1,2194 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#include <string.h>
+#include "device/include/interop.h"
+#include "include/bt_target.h"
+#include "stack/btm/btm_int.h"
+#include "stack/include/l2c_api.h"
+#include "stack/smp/smp_int.h"
+#include "utils/include/bt_utils.h"
+
+#if SMP_INCLUDED == TRUE
+const UINT8 smp_association_table[2][SMP_IO_CAP_MAX][SMP_IO_CAP_MAX] =
+{
+    /* initiator */
+    {{SMP_MODEL_ENCRYPTION_ONLY, SMP_MODEL_ENCRYPTION_ONLY, SMP_MODEL_PASSKEY,   SMP_MODEL_ENCRYPTION_ONLY, SMP_MODEL_PASSKEY}, /* Display Only */
+        {SMP_MODEL_ENCRYPTION_ONLY,  SMP_MODEL_ENCRYPTION_ONLY, SMP_MODEL_PASSKEY, SMP_MODEL_ENCRYPTION_ONLY, SMP_MODEL_PASSKEY}, /* SMP_CAP_IO = 1 */
+        {SMP_MODEL_KEY_NOTIF, SMP_MODEL_KEY_NOTIF,  SMP_MODEL_PASSKEY,   SMP_MODEL_ENCRYPTION_ONLY, SMP_MODEL_KEY_NOTIF}, /* keyboard only */
+        {SMP_MODEL_ENCRYPTION_ONLY,  SMP_MODEL_ENCRYPTION_ONLY,   SMP_MODEL_ENCRYPTION_ONLY,  SMP_MODEL_ENCRYPTION_ONLY,    SMP_MODEL_ENCRYPTION_ONLY},/* No Input No Output */
+        {SMP_MODEL_KEY_NOTIF, SMP_MODEL_KEY_NOTIF,  SMP_MODEL_PASSKEY,   SMP_MODEL_ENCRYPTION_ONLY, SMP_MODEL_KEY_NOTIF}}, /* keyboard display */
+    /* responder */
+    {{SMP_MODEL_ENCRYPTION_ONLY, SMP_MODEL_ENCRYPTION_ONLY,   SMP_MODEL_KEY_NOTIF, SMP_MODEL_ENCRYPTION_ONLY,    SMP_MODEL_KEY_NOTIF}, /* Display Only */
+        {SMP_MODEL_ENCRYPTION_ONLY,  SMP_MODEL_ENCRYPTION_ONLY,   SMP_MODEL_KEY_NOTIF,   SMP_MODEL_ENCRYPTION_ONLY,    SMP_MODEL_KEY_NOTIF}, /* SMP_CAP_IO = 1 */
+        {SMP_MODEL_PASSKEY,   SMP_MODEL_PASSKEY,    SMP_MODEL_PASSKEY,   SMP_MODEL_ENCRYPTION_ONLY,    SMP_MODEL_PASSKEY}, /* keyboard only */
+        {SMP_MODEL_ENCRYPTION_ONLY,  SMP_MODEL_ENCRYPTION_ONLY,   SMP_MODEL_ENCRYPTION_ONLY,  SMP_MODEL_ENCRYPTION_ONLY, SMP_MODEL_ENCRYPTION_ONLY},/* No Input No Output */
+        {SMP_MODEL_PASSKEY,   SMP_MODEL_PASSKEY,    SMP_MODEL_KEY_NOTIF, SMP_MODEL_ENCRYPTION_ONLY, SMP_MODEL_PASSKEY}} /* keyboard display */
+    /* display only */    /*SMP_CAP_IO = 1 */  /* keyboard only */   /* No InputOutput */  /* keyboard display */
+};
+
+#define SMP_KEY_DIST_TYPE_MAX       4
+const tSMP_ACT smp_distribute_act [] =
+{
+    smp_generate_ltk,
+    smp_send_id_info,
+    smp_generate_csrk,
+    smp_set_derive_link_key
+};
+
+static bool lmp_version_below(BD_ADDR bda, uint8_t version)
+{
+    tACL_CONN *acl = btm_bda_to_acl(bda, BT_TRANSPORT_LE);
+    if (acl == NULL || acl->lmp_version == 0)
+    {
+        SMP_TRACE_WARNING("%s cannot retrieve LMP version...", __func__);
+        return false;
+    }
+    SMP_TRACE_WARNING("%s LMP version %d < %d", __func__, acl->lmp_version, version);
+    return acl->lmp_version < version;
+}
+
+static bool pts_test_send_authentication_complete_failure(tSMP_CB *p_cb)
+{
+    uint8_t reason = 0;
+
+    if (p_cb->cert_failure < 2 || p_cb->cert_failure > 6)
+        return false;
+
+    SMP_TRACE_ERROR("%s failure case = %d", __func__, p_cb->cert_failure);
+
+    switch (p_cb->cert_failure)
+    {
+        case 2:
+            reason = SMP_PAIR_AUTH_FAIL;
+            smp_sm_event(p_cb, SMP_AUTH_CMPL_EVT, &reason);
+            break;
+        case 3:
+            reason = SMP_PAIR_FAIL_UNKNOWN;
+            smp_sm_event(p_cb, SMP_AUTH_CMPL_EVT, &reason);
+            break;
+        case 4:
+            reason = SMP_PAIR_NOT_SUPPORT;
+            smp_sm_event(p_cb, SMP_AUTH_CMPL_EVT, &reason);
+            break;
+        case 5:
+            reason = SMP_PASSKEY_ENTRY_FAIL;
+            smp_sm_event(p_cb, SMP_AUTH_CMPL_EVT, &reason);
+            break;
+        case 6:
+            reason = SMP_REPEATED_ATTEMPTS;
+            smp_sm_event(p_cb, SMP_AUTH_CMPL_EVT, &reason);
+            break;
+    }
+
+    return true;;
+}
+
+/*******************************************************************************
+** Function         smp_update_key_mask
+** Description      This function updates the key mask for sending or receiving.
+*******************************************************************************/
+static void smp_update_key_mask (tSMP_CB *p_cb, UINT8 key_type, BOOLEAN recv)
+{
+    SMP_TRACE_DEBUG("%s before update role=%d recv=%d local_i_key = %02x, local_r_key = %02x",
+        __func__, p_cb->role, recv, p_cb->local_i_key, p_cb->local_r_key);
+
+    if (((p_cb->le_secure_connections_mode_is_used) ||
+        (p_cb->smp_over_br)) &&
+        ((key_type == SMP_SEC_KEY_TYPE_ENC) || (key_type == SMP_SEC_KEY_TYPE_LK)))
+    {
+        /* in LE SC mode LTK, CSRK and BR/EDR LK are derived locally instead of
+        ** being exchanged with the peer */
+        p_cb->local_i_key &= ~key_type;
+        p_cb->local_r_key &= ~key_type;
+    }
+    else
+    if (p_cb->role == HCI_ROLE_SLAVE)
+    {
+        if (recv)
+            p_cb->local_i_key &= ~key_type;
+        else
+            p_cb->local_r_key &= ~key_type;
+    }
+    else
+    {
+        if (recv)
+            p_cb->local_r_key &= ~key_type;
+        else
+            p_cb->local_i_key &= ~key_type;
+    }
+
+    SMP_TRACE_DEBUG("updated local_i_key = %02x, local_r_key = %02x", p_cb->local_i_key,
+                      p_cb->local_r_key);
+}
+
+/*******************************************************************************
+** Function     smp_send_app_cback
+** Description  notifies application about the events the application is interested in
+*******************************************************************************/
+void smp_send_app_cback(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    tSMP_EVT_DATA   cb_data;
+    tSMP_STATUS callback_rc;
+    SMP_TRACE_DEBUG("%s p_cb->cb_evt=%d", __func__, p_cb->cb_evt);
+    if (p_cb->p_callback && p_cb->cb_evt != 0)
+    {
+        switch (p_cb->cb_evt)
+        {
+            case SMP_IO_CAP_REQ_EVT:
+                cb_data.io_req.auth_req = p_cb->peer_auth_req;
+                cb_data.io_req.oob_data = SMP_OOB_NONE;
+                cb_data.io_req.io_cap = SMP_DEFAULT_IO_CAPS;
+                cb_data.io_req.max_key_size = SMP_MAX_ENC_KEY_SIZE;
+                cb_data.io_req.init_keys = p_cb->local_i_key ;
+                cb_data.io_req.resp_keys = p_cb->local_r_key ;
+                SMP_TRACE_WARNING ( "io_cap = %d",cb_data.io_req.io_cap);
+                break;
+
+            case SMP_NC_REQ_EVT:
+                cb_data.passkey = p_data->passkey;
+                break;
+            case SMP_SC_OOB_REQ_EVT:
+                cb_data.req_oob_type = p_data->req_oob_type;
+                break;
+            case SMP_SC_LOC_OOB_DATA_UP_EVT:
+                cb_data.loc_oob_data = p_cb->sc_oob_data.loc_oob_data;
+                break;
+
+            case SMP_BR_KEYS_REQ_EVT:
+                cb_data.io_req.auth_req = 0;
+                cb_data.io_req.oob_data = SMP_OOB_NONE;
+                cb_data.io_req.io_cap = 0;
+                cb_data.io_req.max_key_size = SMP_MAX_ENC_KEY_SIZE;
+                cb_data.io_req.init_keys = SMP_BR_SEC_DEFAULT_KEY;
+                cb_data.io_req.resp_keys = SMP_BR_SEC_DEFAULT_KEY;
+                break;
+
+            default:
+                break;
+        }
+
+        callback_rc = (*p_cb->p_callback)(p_cb->cb_evt, p_cb->pairing_bda, &cb_data);
+
+        SMP_TRACE_DEBUG("callback_rc=%d  p_cb->cb_evt=%d",callback_rc, p_cb->cb_evt );
+
+        if (callback_rc == SMP_SUCCESS)
+        {
+            switch (p_cb->cb_evt)
+            {
+                case SMP_IO_CAP_REQ_EVT:
+                    p_cb->loc_auth_req   = cb_data.io_req.auth_req;
+                    p_cb->local_io_capability  = cb_data.io_req.io_cap;
+                    p_cb->loc_oob_flag = cb_data.io_req.oob_data;
+                    p_cb->loc_enc_size = cb_data.io_req.max_key_size;
+                    p_cb->local_i_key = cb_data.io_req.init_keys;
+                    p_cb->local_r_key = cb_data.io_req.resp_keys;
+
+                    if (!(p_cb->loc_auth_req & SMP_AUTH_BOND))
+                    {
+                        SMP_TRACE_WARNING ("Non bonding: No keys will be exchanged");
+                        p_cb->local_i_key = 0;
+                        p_cb->local_r_key = 0;
+                    }
+
+                    SMP_TRACE_WARNING ( "rcvd auth_req: 0x%02x, io_cap: %d \
+                        loc_oob_flag: %d loc_enc_size: %d,"
+                        "local_i_key: 0x%02x, local_r_key: 0x%02x",
+                        p_cb->loc_auth_req, p_cb->local_io_capability, p_cb->loc_oob_flag,
+                        p_cb->loc_enc_size, p_cb->local_i_key, p_cb->local_r_key);
+
+                    p_cb->secure_connections_only_mode_required =
+                        (btm_cb.security_mode == BTM_SEC_MODE_SC) ? TRUE : FALSE;
+
+                    if (p_cb->secure_connections_only_mode_required)
+                    {
+                        p_cb->loc_auth_req |= SMP_SC_SUPPORT_BIT;
+                    }
+
+                    if (!(p_cb->loc_auth_req & SMP_SC_SUPPORT_BIT)
+                        || lmp_version_below(p_cb->pairing_bda, HCI_PROTO_VERSION_4_2)
+                        || interop_match_addr(INTEROP_DISABLE_LE_SECURE_CONNECTIONS,
+                            (const bt_bdaddr_t *)&p_cb->pairing_bda))
+                    {
+                        p_cb->loc_auth_req &= ~SMP_KP_SUPPORT_BIT;
+                        p_cb->local_i_key &= ~SMP_SEC_KEY_TYPE_LK;
+                        p_cb->local_r_key &= ~SMP_SEC_KEY_TYPE_LK;
+                    }
+
+                    SMP_TRACE_WARNING("set auth_req: 0x%02x, local_i_key: 0x%02x, local_r_key: 0x%02x",
+                        p_cb->loc_auth_req, p_cb->local_i_key, p_cb->local_r_key);
+
+                    smp_sm_event(p_cb, SMP_IO_RSP_EVT, NULL);
+                    break;
+
+                case SMP_BR_KEYS_REQ_EVT:
+                    p_cb->loc_enc_size = cb_data.io_req.max_key_size;
+                    p_cb->local_i_key = cb_data.io_req.init_keys;
+                    p_cb->local_r_key = cb_data.io_req.resp_keys;
+
+                    p_cb->local_i_key &= ~SMP_SEC_KEY_TYPE_LK;
+                    p_cb->local_r_key &= ~SMP_SEC_KEY_TYPE_LK;
+
+                    SMP_TRACE_WARNING ( "for SMP over BR max_key_size: 0x%02x,\
+                        local_i_key: 0x%02x, local_r_key: 0x%02x",
+                        p_cb->loc_enc_size, p_cb->local_i_key, p_cb->local_r_key);
+
+                    smp_br_state_machine_event(p_cb, SMP_BR_KEYS_RSP_EVT, NULL);
+                    break;
+            }
+        }
+    }
+
+    if (!p_cb->cb_evt && p_cb->discard_sec_req)
+    {
+        p_cb->discard_sec_req = FALSE;
+        smp_sm_event(p_cb, SMP_DISCARD_SEC_REQ_EVT, NULL);
+    }
+
+    SMP_TRACE_DEBUG("%s return", __func__);
+}
+
+/*******************************************************************************
+** Function     smp_send_pair_fail
+** Description  pairing failure to peer device if needed.
+*******************************************************************************/
+void smp_send_pair_fail(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    p_cb->status = *(UINT8 *)p_data;
+    p_cb->failure = *(UINT8 *)p_data;
+
+    SMP_TRACE_DEBUG("%s status=%d failure=%d ", __func__, p_cb->status, p_cb->failure);
+
+    if (p_cb->status <= SMP_MAX_FAIL_RSN_PER_SPEC && p_cb->status != SMP_SUCCESS)
+    {
+        smp_send_cmd(SMP_OPCODE_PAIRING_FAILED, p_cb);
+        p_cb->wait_for_authorization_complete = TRUE;
+    }
+}
+
+/*******************************************************************************
+** Function     smp_send_pair_req
+** Description  actions related to sending pairing request
+*******************************************************************************/
+void smp_send_pair_req(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    tBTM_SEC_DEV_REC *p_dev_rec = btm_find_dev (p_cb->pairing_bda);
+    SMP_TRACE_DEBUG("%s", __func__);
+
+    /* erase all keys when master sends pairing req*/
+    if (p_dev_rec)
+        btm_sec_clear_ble_keys(p_dev_rec);
+    /* do not manipulate the key, let app decide,
+       leave out to BTM to mandate key distribution for bonding case */
+    smp_send_cmd(SMP_OPCODE_PAIRING_REQ, p_cb);
+}
+
+/*******************************************************************************
+** Function     smp_send_pair_rsp
+** Description  actions related to sending pairing response
+*******************************************************************************/
+void smp_send_pair_rsp(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    SMP_TRACE_DEBUG("%s", __func__);
+
+    p_cb->local_i_key &= p_cb->peer_i_key;
+    p_cb->local_r_key &= p_cb->peer_r_key;
+
+    if (smp_send_cmd (SMP_OPCODE_PAIRING_RSP, p_cb))
+    {
+        if (p_cb->selected_association_model == SMP_MODEL_SEC_CONN_OOB)
+            smp_use_oob_private_key(p_cb, NULL);
+        else
+            smp_decide_association_model(p_cb, NULL);
+    }
+}
+
+/*******************************************************************************
+** Function     smp_send_confirm
+** Description  send confirmation to the peer
+*******************************************************************************/
+void smp_send_confirm(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    SMP_TRACE_DEBUG("%s", __func__);
+    smp_send_cmd(SMP_OPCODE_CONFIRM, p_cb);
+}
+
+/*******************************************************************************
+** Function     smp_send_init
+** Description  process pairing initializer to slave device
+*******************************************************************************/
+void smp_send_init(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    SMP_TRACE_DEBUG("%s", __func__);
+    smp_send_cmd(SMP_OPCODE_INIT, p_cb);
+}
+
+/*******************************************************************************
+** Function     smp_send_rand
+** Description  send pairing random to the peer
+*******************************************************************************/
+void smp_send_rand(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    SMP_TRACE_DEBUG("%s", __func__);
+    smp_send_cmd(SMP_OPCODE_RAND, p_cb);
+}
+
+/*******************************************************************************
+** Function     smp_send_pair_public_key
+** Description  send pairing public key command to the peer
+*******************************************************************************/
+void smp_send_pair_public_key(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    SMP_TRACE_DEBUG("%s", __func__);
+    smp_send_cmd(SMP_OPCODE_PAIR_PUBLIC_KEY, p_cb);
+}
+
+/*******************************************************************************
+** Function     SMP_SEND_COMMITMENT
+** Description send commitment command to the peer
+*******************************************************************************/
+void smp_send_commitment(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    SMP_TRACE_DEBUG("%s", __func__);
+    smp_send_cmd(SMP_OPCODE_PAIR_COMMITM, p_cb);
+}
+
+/*******************************************************************************
+** Function     smp_send_dhkey_check
+** Description send DHKey Check command to the peer
+*******************************************************************************/
+void smp_send_dhkey_check(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    SMP_TRACE_DEBUG("%s", __func__);
+    smp_send_cmd(SMP_OPCODE_PAIR_DHKEY_CHECK, p_cb);
+}
+
+/*******************************************************************************
+** Function     smp_send_keypress_notification
+** Description send Keypress Notification command to the peer
+*******************************************************************************/
+void smp_send_keypress_notification(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    p_cb->local_keypress_notification = *(UINT8 *) p_data;
+    smp_send_cmd(SMP_OPCODE_PAIR_KEYPR_NOTIF, p_cb);
+}
+
+/*******************************************************************************
+** Function     smp_send_enc_info
+** Description  send encryption information command.
+*******************************************************************************/
+void smp_send_enc_info(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    tBTM_LE_LENC_KEYS   le_key;
+
+    SMP_TRACE_DEBUG("%s p_cb->loc_enc_size = %d", __func__, p_cb->loc_enc_size);
+    smp_update_key_mask (p_cb, SMP_SEC_KEY_TYPE_ENC, FALSE);
+
+    smp_send_cmd(SMP_OPCODE_ENCRYPT_INFO, p_cb);
+    smp_send_cmd(SMP_OPCODE_MASTER_ID, p_cb);
+
+    /* save the DIV and key size information when acting as slave device */
+    memcpy(le_key.ltk, p_cb->ltk, BT_OCTET16_LEN);
+    le_key.div =  p_cb->div;
+    le_key.key_size = p_cb->loc_enc_size;
+    le_key.sec_level = p_cb->sec_level;
+
+    if ((p_cb->peer_auth_req & SMP_AUTH_BOND) && (p_cb->loc_auth_req & SMP_AUTH_BOND))
+        btm_sec_save_le_key(p_cb->pairing_bda, BTM_LE_KEY_LENC,
+                            (tBTM_LE_KEY_VALUE *)&le_key, TRUE);
+
+    SMP_TRACE_WARNING ("%s", __func__);
+
+    smp_key_distribution(p_cb, NULL);
+}
+
+/*******************************************************************************
+** Function     smp_send_id_info
+** Description  send ID information command.
+*******************************************************************************/
+void smp_send_id_info(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    tBTM_LE_KEY_VALUE   le_key;
+    SMP_TRACE_DEBUG("%s", __func__);
+    smp_update_key_mask (p_cb, SMP_SEC_KEY_TYPE_ID, FALSE);
+
+    smp_send_cmd(SMP_OPCODE_IDENTITY_INFO, p_cb);
+    smp_send_cmd(SMP_OPCODE_ID_ADDR, p_cb);
+
+    if ((p_cb->peer_auth_req & SMP_AUTH_BOND) && (p_cb->loc_auth_req & SMP_AUTH_BOND))
+        btm_sec_save_le_key(p_cb->pairing_bda, BTM_LE_KEY_LID,
+                            &le_key, TRUE);
+
+    SMP_TRACE_WARNING ("%s", __func__);
+    smp_key_distribution_by_transport(p_cb, NULL);
+}
+
+/*******************************************************************************
+** Function     smp_send_csrk_info
+** Description  send CSRK command.
+*******************************************************************************/
+void smp_send_csrk_info(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    tBTM_LE_LCSRK_KEYS  key;
+    SMP_TRACE_DEBUG("%s", __func__);
+    smp_update_key_mask (p_cb, SMP_SEC_KEY_TYPE_CSRK, FALSE);
+
+    if (smp_send_cmd(SMP_OPCODE_SIGN_INFO, p_cb))
+    {
+        key.div = p_cb->div;
+        key.sec_level = p_cb->sec_level;
+        key.counter = 0; /* initialize the local counter */
+        memcpy (key.csrk, p_cb->csrk, BT_OCTET16_LEN);
+        btm_sec_save_le_key(p_cb->pairing_bda, BTM_LE_KEY_LCSRK, (tBTM_LE_KEY_VALUE *)&key, TRUE);
+    }
+
+    smp_key_distribution_by_transport(p_cb, NULL);
+}
+
+/*******************************************************************************
+** Function     smp_send_ltk_reply
+** Description  send LTK reply
+*******************************************************************************/
+void smp_send_ltk_reply(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    SMP_TRACE_DEBUG("%s", __func__);
+    /* send stk as LTK response */
+    btm_ble_ltk_request_reply(p_cb->pairing_bda, TRUE, p_data->key.p_data);
+}
+
+/*******************************************************************************
+** Function     smp_proc_sec_req
+** Description  process security request.
+*******************************************************************************/
+void smp_proc_sec_req(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    tBTM_LE_AUTH_REQ auth_req = *(tBTM_LE_AUTH_REQ *)p_data;
+    tBTM_BLE_SEC_REQ_ACT sec_req_act;
+    UINT8 reason;
+
+    SMP_TRACE_DEBUG("%s auth_req=0x%x", __func__, auth_req);
+
+    p_cb->cb_evt = 0;
+
+    btm_ble_link_sec_check(p_cb->pairing_bda, auth_req,  &sec_req_act);
+
+    SMP_TRACE_DEBUG("%s sec_req_act=0x%x", __func__, sec_req_act);
+
+    switch (sec_req_act)
+    {
+        case  BTM_BLE_SEC_REQ_ACT_ENCRYPT:
+            SMP_TRACE_DEBUG("%s BTM_BLE_SEC_REQ_ACT_ENCRYPT", __func__);
+            smp_sm_event(p_cb, SMP_ENC_REQ_EVT, NULL);
+            break;
+
+        case BTM_BLE_SEC_REQ_ACT_PAIR:
+            p_cb->secure_connections_only_mode_required =
+                    (btm_cb.security_mode == BTM_SEC_MODE_SC) ? TRUE : FALSE;
+
+            /* respond to non SC pairing request as failure in SC only mode */
+            if (p_cb->secure_connections_only_mode_required &&
+                (auth_req & SMP_SC_SUPPORT_BIT) == 0)
+            {
+                reason = SMP_PAIR_AUTH_FAIL;
+                smp_sm_event(p_cb, SMP_AUTH_CMPL_EVT, &reason);
+            }
+            else
+            {
+                /* initialize local i/r key to be default keys */
+                p_cb->peer_auth_req = auth_req;
+                p_cb->local_r_key = p_cb->local_i_key = SMP_SEC_DEFAULT_KEY ;
+                p_cb->cb_evt = SMP_SEC_REQUEST_EVT;
+            }
+            break;
+
+        case BTM_BLE_SEC_REQ_ACT_DISCARD:
+            p_cb->discard_sec_req = TRUE;
+            break;
+
+        default:
+            /* do nothing */
+            break;
+    }
+}
+
+/*******************************************************************************
+** Function     smp_proc_sec_grant
+** Description  process security grant.
+*******************************************************************************/
+void smp_proc_sec_grant(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    UINT8 res= *(UINT8 *)p_data;
+    SMP_TRACE_DEBUG("%s", __func__);
+    if (res != SMP_SUCCESS)
+    {
+        smp_sm_event(p_cb, SMP_AUTH_CMPL_EVT, p_data);
+    }
+    else /*otherwise, start pairing */
+    {
+        /* send IO request callback */
+        p_cb->cb_evt = SMP_IO_CAP_REQ_EVT;
+    }
+}
+
+/*******************************************************************************
+** Function     smp_proc_pair_fail
+** Description  process pairing failure from peer device
+*******************************************************************************/
+void smp_proc_pair_fail(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    SMP_TRACE_DEBUG("%s", __func__);
+    p_cb->status = *(UINT8 *)p_data;
+}
+
+/*******************************************************************************
+** Function     smp_proc_pair_cmd
+** Description  Process the SMP pairing request/response from peer device
+*******************************************************************************/
+void smp_proc_pair_cmd(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    UINT8   *p = (UINT8 *)p_data;
+    UINT8   reason = SMP_ENC_KEY_SIZE;
+    tBTM_SEC_DEV_REC *p_dev_rec = btm_find_dev (p_cb->pairing_bda);
+
+    SMP_TRACE_DEBUG("%s", __func__);
+    /* erase all keys if it is slave proc pairing req*/
+    if (p_dev_rec && (p_cb->role == HCI_ROLE_SLAVE))
+        btm_sec_clear_ble_keys(p_dev_rec);
+
+    p_cb->flags |= SMP_PAIR_FLAG_ENC_AFTER_PAIR;
+
+    STREAM_TO_UINT8(p_cb->peer_io_caps, p);
+    STREAM_TO_UINT8(p_cb->peer_oob_flag, p);
+    STREAM_TO_UINT8(p_cb->peer_auth_req, p);
+    STREAM_TO_UINT8(p_cb->peer_enc_size, p);
+    STREAM_TO_UINT8(p_cb->peer_i_key, p);
+    STREAM_TO_UINT8(p_cb->peer_r_key, p);
+
+    if (smp_command_has_invalid_parameters(p_cb))
+    {
+        reason = SMP_INVALID_PARAMETERS;
+        smp_sm_event(p_cb, SMP_AUTH_CMPL_EVT, &reason);
+        return;
+    }
+
+    // PTS Testing failure modes
+    if (pts_test_send_authentication_complete_failure(p_cb))
+        return;
+
+    if (p_cb->role == HCI_ROLE_SLAVE)
+    {
+        if (!(p_cb->flags & SMP_PAIR_FLAGS_WE_STARTED_DD))
+        {
+            /* peer (master) started pairing sending Pairing Request */
+            p_cb->local_i_key = p_cb->peer_i_key;
+            p_cb->local_r_key = p_cb->peer_r_key;
+
+            p_cb->cb_evt = SMP_SEC_REQUEST_EVT;
+        }
+        else /* update local i/r key according to pairing request */
+        {
+            /* pairing started with this side (slave) sending Security Request */
+            p_cb->local_i_key &= p_cb->peer_i_key;
+            p_cb->local_r_key &= p_cb->peer_r_key;
+            p_cb->selected_association_model = smp_select_association_model(p_cb);
+
+            if (p_cb->secure_connections_only_mode_required &&
+                (!(p_cb->le_secure_connections_mode_is_used) ||
+               (p_cb->selected_association_model == SMP_MODEL_SEC_CONN_JUSTWORKS)))
+            {
+                SMP_TRACE_ERROR("%s pairing failed - slave requires secure connection only mode",
+                    __func__);
+                reason = SMP_PAIR_AUTH_FAIL;
+                smp_sm_event(p_cb, SMP_AUTH_CMPL_EVT, &reason);
+                return;
+            }
+
+            if (p_cb->selected_association_model == SMP_MODEL_SEC_CONN_OOB)
+            {
+                if (smp_request_oob_data(p_cb)) return;
+            }
+            else
+            {
+                smp_send_pair_rsp(p_cb, NULL);
+            }
+        }
+    }
+    else /* Master receives pairing response */
+    {
+        p_cb->selected_association_model = smp_select_association_model(p_cb);
+
+        if (p_cb->secure_connections_only_mode_required &&
+            (!(p_cb->le_secure_connections_mode_is_used) ||
+           (p_cb->selected_association_model == SMP_MODEL_SEC_CONN_JUSTWORKS)))
+        {
+            SMP_TRACE_ERROR ("Master requires secure connection only mode \
+                but it can't be provided -> Master fails pairing");
+            reason = SMP_PAIR_AUTH_FAIL;
+            smp_sm_event(p_cb, SMP_AUTH_CMPL_EVT, &reason);
+            return;
+        }
+
+        if (p_cb->selected_association_model == SMP_MODEL_SEC_CONN_OOB)
+        {
+            if (smp_request_oob_data(p_cb)) return;
+        }
+        else
+        {
+            smp_decide_association_model(p_cb, NULL);
+        }
+    }
+}
+
+/*******************************************************************************
+** Function     smp_proc_confirm
+** Description  process pairing confirm from peer device
+*******************************************************************************/
+void smp_proc_confirm(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    UINT8 *p = (UINT8 *)p_data;
+    UINT8 reason = SMP_INVALID_PARAMETERS;
+
+    SMP_TRACE_DEBUG("%s", __func__);
+
+    if (smp_command_has_invalid_parameters(p_cb))
+    {
+        smp_sm_event(p_cb, SMP_AUTH_CMPL_EVT, &reason);
+        return;
+    }
+
+    if (p != NULL)
+    {
+        /* save the SConfirm for comparison later */
+        STREAM_TO_ARRAY(p_cb->rconfirm, p, BT_OCTET16_LEN);
+    }
+
+    p_cb->flags |= SMP_PAIR_FLAGS_CMD_CONFIRM;
+}
+
+/*******************************************************************************
+** Function     smp_proc_init
+** Description  process pairing initializer from peer device
+*******************************************************************************/
+void smp_proc_init(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    UINT8 *p = (UINT8 *)p_data;
+    UINT8 reason = SMP_INVALID_PARAMETERS;
+
+    SMP_TRACE_DEBUG("%s", __func__);
+
+    if (smp_command_has_invalid_parameters(p_cb))
+    {
+        smp_sm_event(p_cb, SMP_AUTH_CMPL_EVT, &reason);
+        return;
+    }
+
+    /* save the SRand for comparison */
+    STREAM_TO_ARRAY(p_cb->rrand, p, BT_OCTET16_LEN);
+}
+
+/*******************************************************************************
+** Function     smp_proc_rand
+** Description  process pairing random (nonce) from peer device
+*******************************************************************************/
+void smp_proc_rand(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    UINT8 *p = (UINT8 *)p_data;
+    UINT8 reason = SMP_INVALID_PARAMETERS;
+
+    SMP_TRACE_DEBUG("%s", __func__);
+
+    if (smp_command_has_invalid_parameters(p_cb))
+    {
+        smp_sm_event(p_cb, SMP_AUTH_CMPL_EVT, &reason);
+        return;
+    }
+
+    /* save the SRand for comparison */
+    STREAM_TO_ARRAY(p_cb->rrand, p, BT_OCTET16_LEN);
+}
+
+/*******************************************************************************
+** Function     smp_process_pairing_public_key
+** Description  process pairing public key command from the peer device
+**              - saves the peer public key;
+**              - sets the flag indicating that the peer public key is received;
+**              - calls smp_wait_for_both_public_keys(...).
+**
+*******************************************************************************/
+void smp_process_pairing_public_key(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    UINT8 *p = (UINT8 *)p_data;
+    UINT8 reason = SMP_INVALID_PARAMETERS;
+
+    SMP_TRACE_DEBUG("%s", __func__);
+
+    if (smp_command_has_invalid_parameters(p_cb))
+    {
+        smp_sm_event(p_cb, SMP_AUTH_CMPL_EVT, &reason);
+        return;
+    }
+
+    STREAM_TO_ARRAY(p_cb->peer_publ_key.x, p, BT_OCTET32_LEN);
+    STREAM_TO_ARRAY(p_cb->peer_publ_key.y, p, BT_OCTET32_LEN);
+    p_cb->flags |= SMP_PAIR_FLAG_HAVE_PEER_PUBL_KEY;
+
+    smp_wait_for_both_public_keys(p_cb, NULL);
+}
+
+/*******************************************************************************
+** Function     smp_process_pairing_commitment
+** Description  process pairing commitment from peer device
+*******************************************************************************/
+void smp_process_pairing_commitment(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    UINT8 *p = (UINT8 *)p_data;
+    UINT8 reason = SMP_INVALID_PARAMETERS;
+
+    SMP_TRACE_DEBUG("%s", __func__);
+
+    if (smp_command_has_invalid_parameters(p_cb))
+    {
+        smp_sm_event(p_cb, SMP_AUTH_CMPL_EVT, &reason);
+        return;
+    }
+
+    p_cb->flags |= SMP_PAIR_FLAG_HAVE_PEER_COMM;
+
+    if (p != NULL)
+    {
+        STREAM_TO_ARRAY(p_cb->remote_commitment, p, BT_OCTET16_LEN);
+    }
+}
+
+/*******************************************************************************
+** Function     smp_process_dhkey_check
+** Description  process DHKey Check from peer device
+*******************************************************************************/
+void smp_process_dhkey_check(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    UINT8 *p = (UINT8 *)p_data;
+    UINT8 reason = SMP_INVALID_PARAMETERS;
+
+    SMP_TRACE_DEBUG("%s", __func__);
+
+    if (smp_command_has_invalid_parameters(p_cb))
+    {
+        smp_sm_event(p_cb, SMP_AUTH_CMPL_EVT, &reason);
+        return;
+    }
+
+    if (p != NULL)
+    {
+        STREAM_TO_ARRAY(p_cb->remote_dhkey_check, p, BT_OCTET16_LEN);
+    }
+
+    p_cb->flags |= SMP_PAIR_FLAG_HAVE_PEER_DHK_CHK;
+}
+
+/*******************************************************************************
+** Function     smp_process_keypress_notification
+** Description  process pairing keypress notification from peer device
+*******************************************************************************/
+void smp_process_keypress_notification(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    UINT8 *p = (UINT8 *)p_data;
+    UINT8 reason = SMP_INVALID_PARAMETERS;
+
+    SMP_TRACE_DEBUG("%s", __func__);
+    p_cb->status = *(UINT8 *)p_data;
+
+    if (smp_command_has_invalid_parameters(p_cb))
+    {
+        smp_sm_event(p_cb, SMP_AUTH_CMPL_EVT, &reason);
+        return;
+    }
+
+    if (p != NULL)
+    {
+        STREAM_TO_UINT8(p_cb->peer_keypress_notification, p);
+    }
+    else
+    {
+        p_cb->peer_keypress_notification = BTM_SP_KEY_OUT_OF_RANGE;
+    }
+    p_cb->cb_evt = SMP_PEER_KEYPR_NOT_EVT;
+}
+
+/*******************************************************************************
+** Function     smp_br_process_pairing_command
+** Description  Process the SMP pairing request/response from peer device via
+**              BR/EDR transport.
+*******************************************************************************/
+void smp_br_process_pairing_command(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    UINT8   *p = (UINT8 *)p_data;
+    UINT8   reason = SMP_ENC_KEY_SIZE;
+    tBTM_SEC_DEV_REC *p_dev_rec = btm_find_dev (p_cb->pairing_bda);
+
+    SMP_TRACE_DEBUG("%s", __func__);
+    /* rejecting BR pairing request over non-SC BR link */
+    if (!p_dev_rec->new_encryption_key_is_p256 && p_cb->role == HCI_ROLE_SLAVE)
+    {
+        reason = SMP_XTRANS_DERIVE_NOT_ALLOW;
+        smp_br_state_machine_event(p_cb, SMP_BR_AUTH_CMPL_EVT, &reason);
+        return;
+    }
+
+    /* erase all keys if it is slave proc pairing req*/
+    if (p_dev_rec && (p_cb->role == HCI_ROLE_SLAVE))
+        btm_sec_clear_ble_keys(p_dev_rec);
+
+    p_cb->flags |= SMP_PAIR_FLAG_ENC_AFTER_PAIR;
+
+    STREAM_TO_UINT8(p_cb->peer_io_caps, p);
+    STREAM_TO_UINT8(p_cb->peer_oob_flag, p);
+    STREAM_TO_UINT8(p_cb->peer_auth_req, p);
+    STREAM_TO_UINT8(p_cb->peer_enc_size, p);
+    STREAM_TO_UINT8(p_cb->peer_i_key, p);
+    STREAM_TO_UINT8(p_cb->peer_r_key, p);
+
+    if (smp_command_has_invalid_parameters(p_cb))
+    {
+        reason = SMP_INVALID_PARAMETERS;
+        smp_br_state_machine_event(p_cb, SMP_BR_AUTH_CMPL_EVT, &reason);
+        return;
+    }
+
+    /* peer (master) started pairing sending Pairing Request */
+    /* or being master device always use received i/r key as keys to distribute */
+    p_cb->local_i_key = p_cb->peer_i_key;
+    p_cb->local_r_key = p_cb->peer_r_key;
+
+    if (p_cb->role == HCI_ROLE_SLAVE)
+    {
+        p_dev_rec->new_encryption_key_is_p256 = FALSE;
+        /* shortcut to skip Security Grant step */
+        p_cb->cb_evt = SMP_BR_KEYS_REQ_EVT;
+    }
+    else /* Master receives pairing response */
+    {
+        SMP_TRACE_DEBUG("%s master rcvs valid PAIRING RESPONSE."
+                          " Supposed to move to key distribution phase. ", __func__);
+    }
+
+    /* auth_req received via BR/EDR SM channel is set to 0,
+       but everything derived/exchanged has to be saved */
+    p_cb->peer_auth_req |= SMP_AUTH_BOND;
+    p_cb->loc_auth_req |= SMP_AUTH_BOND;
+}
+
+/*******************************************************************************
+** Function     smp_br_process_security_grant
+** Description  process security grant in case of pairing over BR/EDR transport.
+*******************************************************************************/
+void smp_br_process_security_grant(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    UINT8 res= *(UINT8 *)p_data;
+    SMP_TRACE_DEBUG("%s", __func__);
+    if (res != SMP_SUCCESS)
+    {
+        smp_br_state_machine_event(p_cb, SMP_BR_AUTH_CMPL_EVT, p_data);
+    }
+    else /*otherwise, start pairing */
+    {
+        /* send IO request callback */
+        p_cb->cb_evt = SMP_BR_KEYS_REQ_EVT;
+    }
+}
+
+/*******************************************************************************
+** Function     smp_br_check_authorization_request
+** Description  sets the SMP kes to be derived/distribute over BR/EDR transport
+**              before starting the distribution/derivation
+*******************************************************************************/
+void smp_br_check_authorization_request(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    UINT8 reason = SMP_SUCCESS;
+
+    SMP_TRACE_DEBUG("%s rcvs i_keys=0x%x r_keys=0x%x "
+                      "(i-initiator r-responder)", __FUNCTION__, p_cb->local_i_key,
+                      p_cb->local_r_key);
+
+    /* In LE SC mode LK field is ignored when BR/EDR transport is used */
+    p_cb->local_i_key &= ~SMP_SEC_KEY_TYPE_LK;
+    p_cb->local_r_key &= ~SMP_SEC_KEY_TYPE_LK;
+
+    /* In LE SC mode only IRK, IAI, CSRK are exchanged with the peer.
+    ** Set local_r_key on master to expect only these keys. */
+    if (p_cb->role == HCI_ROLE_MASTER)
+    {
+        p_cb->local_r_key &= (SMP_SEC_KEY_TYPE_ID | SMP_SEC_KEY_TYPE_CSRK);
+    }
+
+    SMP_TRACE_DEBUG("%s rcvs upgrades: i_keys=0x%x r_keys=0x%x "
+                      "(i-initiator r-responder)", __FUNCTION__, p_cb->local_i_key,
+                      p_cb->local_r_key);
+
+    if (/*((p_cb->peer_auth_req & SMP_AUTH_BOND) ||
+            (p_cb->loc_auth_req & SMP_AUTH_BOND)) &&*/
+        (p_cb->local_i_key || p_cb->local_r_key))
+    {
+        smp_br_state_machine_event(p_cb, SMP_BR_BOND_REQ_EVT, NULL);
+
+        /* if no peer key is expected, start master key distribution */
+        if (p_cb->role == HCI_ROLE_MASTER && p_cb->local_r_key == 0)
+            smp_key_distribution_by_transport(p_cb, NULL);
+    }
+    else
+    {
+        smp_br_state_machine_event(p_cb, SMP_BR_AUTH_CMPL_EVT, &reason);
+    }
+}
+
+/*******************************************************************************
+** Function     smp_br_select_next_key
+** Description  selects the next key to derive/send when BR/EDR transport is
+**              used.
+*******************************************************************************/
+void smp_br_select_next_key(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    UINT8   reason = SMP_SUCCESS;
+    SMP_TRACE_DEBUG("%s role=%d (0-master) r_keys=0x%x i_keys=0x%x",
+                       __func__, p_cb->role, p_cb->local_r_key, p_cb->local_i_key);
+
+    if (p_cb->role == HCI_ROLE_SLAVE||
+        (!p_cb->local_r_key && p_cb->role == HCI_ROLE_MASTER))
+    {
+        smp_key_pick_key(p_cb, p_data);
+    }
+
+    if (!p_cb->local_i_key && !p_cb->local_r_key)
+    {
+        /* state check to prevent re-entrance */
+        if (smp_get_br_state() == SMP_BR_STATE_BOND_PENDING)
+        {
+            if (p_cb->total_tx_unacked == 0)
+                smp_br_state_machine_event(p_cb, SMP_BR_AUTH_CMPL_EVT, &reason);
+            else
+                p_cb->wait_for_authorization_complete = TRUE;
+        }
+    }
+}
+
+/*******************************************************************************
+** Function     smp_proc_enc_info
+** Description  process encryption information from peer device
+*******************************************************************************/
+void smp_proc_enc_info(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    UINT8   *p = (UINT8 *)p_data;
+
+    SMP_TRACE_DEBUG("%s", __func__);
+    STREAM_TO_ARRAY(p_cb->ltk, p, BT_OCTET16_LEN);
+
+    smp_key_distribution(p_cb, NULL);
+}
+/*******************************************************************************
+** Function     smp_proc_master_id
+** Description  process master ID from slave device
+*******************************************************************************/
+void smp_proc_master_id(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    UINT8   *p = (UINT8 *)p_data;
+    tBTM_LE_PENC_KEYS   le_key;
+
+    SMP_TRACE_DEBUG("%s", __func__);
+    smp_update_key_mask (p_cb, SMP_SEC_KEY_TYPE_ENC, TRUE);
+
+    STREAM_TO_UINT16(le_key.ediv, p);
+    STREAM_TO_ARRAY(le_key.rand, p, BT_OCTET8_LEN );
+
+    /* store the encryption keys from peer device */
+    memcpy(le_key.ltk, p_cb->ltk, BT_OCTET16_LEN);
+    le_key.sec_level = p_cb->sec_level;
+    le_key.key_size  = p_cb->loc_enc_size;
+
+    if ((p_cb->peer_auth_req & SMP_AUTH_BOND) && (p_cb->loc_auth_req & SMP_AUTH_BOND))
+        btm_sec_save_le_key(p_cb->pairing_bda,
+                            BTM_LE_KEY_PENC,
+                            (tBTM_LE_KEY_VALUE *)&le_key, TRUE);
+
+    smp_key_distribution(p_cb, NULL);
+}
+
+/*******************************************************************************
+** Function     smp_proc_enc_info
+** Description  process identity information from peer device
+*******************************************************************************/
+void smp_proc_id_info(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    UINT8   *p = (UINT8 *)p_data;
+
+    SMP_TRACE_DEBUG("%s", __func__);
+    STREAM_TO_ARRAY (p_cb->tk, p, BT_OCTET16_LEN);   /* reuse TK for IRK */
+    smp_key_distribution_by_transport(p_cb, NULL);
+}
+
+/*******************************************************************************
+** Function     smp_proc_id_addr
+** Description  process identity address from peer device
+*******************************************************************************/
+void smp_proc_id_addr(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    UINT8   *p = (UINT8 *)p_data;
+    tBTM_LE_PID_KEYS    pid_key;
+
+    SMP_TRACE_DEBUG("%s", __func__);
+    smp_update_key_mask (p_cb, SMP_SEC_KEY_TYPE_ID, TRUE);
+
+    STREAM_TO_UINT8(pid_key.addr_type, p);
+    STREAM_TO_BDADDR(pid_key.static_addr, p);
+    memcpy(pid_key.irk, p_cb->tk, BT_OCTET16_LEN);
+
+    /* to use as BD_ADDR for lk derived from ltk */
+    p_cb->id_addr_rcvd = TRUE;
+    p_cb->id_addr_type = pid_key.addr_type;
+    memcpy(p_cb->id_addr, pid_key.static_addr, BD_ADDR_LEN);
+
+    /* store the ID key from peer device */
+    if ((p_cb->peer_auth_req & SMP_AUTH_BOND) && (p_cb->loc_auth_req & SMP_AUTH_BOND))
+        btm_sec_save_le_key(p_cb->pairing_bda, BTM_LE_KEY_PID,
+                            (tBTM_LE_KEY_VALUE *)&pid_key, TRUE);
+    smp_key_distribution_by_transport(p_cb, NULL);
+}
+
+/*******************************************************************************
+** Function     smp_proc_srk_info
+** Description  process security information from peer device
+*******************************************************************************/
+void smp_proc_srk_info(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    tBTM_LE_PCSRK_KEYS   le_key;
+#ifdef BLUETOOTH_RTK
+    UINT8   *p = (UINT8 *)p_data;
+#endif  
+    SMP_TRACE_DEBUG("%s", __func__);
+    smp_update_key_mask (p_cb, SMP_SEC_KEY_TYPE_CSRK, TRUE);
+
+    /* save CSRK to security record */
+    le_key.sec_level = p_cb->sec_level;
+#ifdef BLUETOOTH_RTK
+    memcpy (le_key.csrk, p,BT_OCTET16_LEN);   /* get peer CSRK */
+#else
+    memcpy (le_key.csrk, p_data,BT_OCTET16_LEN);   /* get peer CSRK */
+#endif
+    le_key.counter = 0; /* initialize the peer counter */
+
+    if ((p_cb->peer_auth_req & SMP_AUTH_BOND) && (p_cb->loc_auth_req & SMP_AUTH_BOND))
+        btm_sec_save_le_key(p_cb->pairing_bda,
+                            BTM_LE_KEY_PCSRK,
+                            (tBTM_LE_KEY_VALUE *)&le_key, TRUE);
+    smp_key_distribution_by_transport(p_cb, NULL);
+}
+
+/*******************************************************************************
+** Function     smp_proc_compare
+** Description  process compare value
+*******************************************************************************/
+void smp_proc_compare(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    UINT8   reason;
+
+    SMP_TRACE_DEBUG("%s", __func__);
+    if (!memcmp(p_cb->rconfirm, p_data->key.p_data, BT_OCTET16_LEN))
+    {
+        /* compare the max encryption key size, and save the smaller one for the link */
+        if ( p_cb->peer_enc_size < p_cb->loc_enc_size)
+            p_cb->loc_enc_size = p_cb->peer_enc_size;
+
+        if (p_cb->role == HCI_ROLE_SLAVE)
+            smp_sm_event(p_cb, SMP_RAND_EVT, NULL);
+        else
+        {
+            /* master device always use received i/r key as keys to distribute */
+            p_cb->local_i_key = p_cb->peer_i_key;
+            p_cb->local_r_key = p_cb->peer_r_key;
+
+            smp_sm_event(p_cb, SMP_ENC_REQ_EVT, NULL);
+        }
+
+    }
+    else
+    {
+        reason = p_cb->failure = SMP_CONFIRM_VALUE_ERR;
+        smp_sm_event(p_cb, SMP_AUTH_CMPL_EVT, &reason);
+    }
+}
+
+/*******************************************************************************
+** Function     smp_proc_sl_key
+** Description  process key ready events.
+*******************************************************************************/
+void smp_proc_sl_key(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    UINT8 key_type = p_data->key.key_type;
+
+    SMP_TRACE_DEBUG("%s", __func__);
+    if (key_type == SMP_KEY_TYPE_TK)
+    {
+        smp_generate_srand_mrand_confirm(p_cb, NULL);
+    }
+    else if (key_type == SMP_KEY_TYPE_CFM)
+    {
+        smp_set_state(SMP_STATE_WAIT_CONFIRM);
+
+        if (p_cb->flags & SMP_PAIR_FLAGS_CMD_CONFIRM)
+            smp_sm_event(p_cb, SMP_CONFIRM_EVT, NULL);
+    }
+}
+
+/*******************************************************************************
+** Function     smp_start_enc
+** Description  start encryption
+*******************************************************************************/
+void smp_start_enc(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    tBTM_STATUS cmd;
+    UINT8 reason = SMP_ENC_FAIL;
+
+    SMP_TRACE_DEBUG("%s", __func__);
+    if (p_data != NULL)
+        cmd = btm_ble_start_encrypt(p_cb->pairing_bda, TRUE, p_data->key.p_data);
+    else
+        cmd = btm_ble_start_encrypt(p_cb->pairing_bda, FALSE, NULL);
+
+    if (cmd != BTM_CMD_STARTED && cmd != BTM_BUSY)
+        smp_sm_event(p_cb, SMP_AUTH_CMPL_EVT, &reason);
+}
+
+/*******************************************************************************
+** Function     smp_proc_discard
+** Description   processing for discard security request
+*******************************************************************************/
+void smp_proc_discard(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    SMP_TRACE_DEBUG("%s", __func__);
+    if (!(p_cb->flags & SMP_PAIR_FLAGS_WE_STARTED_DD))
+        smp_reset_control_value(p_cb);
+}
+
+/*******************************************************************************
+** Function     smp_enc_cmpl
+** Description   encryption success
+*******************************************************************************/
+void smp_enc_cmpl(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    UINT8 enc_enable = *(UINT8 *)p_data;
+    UINT8 reason = enc_enable ? SMP_SUCCESS : SMP_ENC_FAIL;
+
+    SMP_TRACE_DEBUG("%s", __func__);
+    smp_sm_event(p_cb, SMP_AUTH_CMPL_EVT, &reason);
+}
+
+/*******************************************************************************
+** Function     smp_check_auth_req
+** Description  check authentication request
+*******************************************************************************/
+void smp_check_auth_req(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    UINT8 enc_enable = *(UINT8 *)p_data;
+    UINT8 reason = enc_enable ? SMP_SUCCESS : SMP_ENC_FAIL;
+
+    SMP_TRACE_DEBUG("%s rcvs enc_enable=%d i_keys=0x%x r_keys=0x%x "
+                      "(i-initiator r-responder)",
+                      __func__, enc_enable, p_cb->local_i_key, p_cb->local_r_key);
+    if (enc_enable == 1)
+    {
+        if (p_cb->le_secure_connections_mode_is_used)
+        {
+            /* In LE SC mode LTK is used instead of STK and has to be always saved */
+            p_cb->local_i_key |= SMP_SEC_KEY_TYPE_ENC;
+            p_cb->local_r_key |= SMP_SEC_KEY_TYPE_ENC;
+
+           /* In LE SC mode LK is derived from LTK only if both sides request it */
+           if (!(p_cb->local_i_key & SMP_SEC_KEY_TYPE_LK) ||
+               !(p_cb->local_r_key & SMP_SEC_KEY_TYPE_LK))
+            {
+                p_cb->local_i_key &= ~SMP_SEC_KEY_TYPE_LK;
+                p_cb->local_r_key &= ~SMP_SEC_KEY_TYPE_LK;
+            }
+
+            /* In LE SC mode only IRK, IAI, CSRK are exchanged with the peer.
+            ** Set local_r_key on master to expect only these keys.
+            */
+            if (p_cb->role == HCI_ROLE_MASTER)
+            {
+                p_cb->local_r_key &= (SMP_SEC_KEY_TYPE_ID | SMP_SEC_KEY_TYPE_CSRK);
+            }
+        }
+        else
+        {
+            /* in legacy mode derivation of BR/EDR LK is not supported */
+            p_cb->local_i_key &= ~SMP_SEC_KEY_TYPE_LK;
+            p_cb->local_r_key &= ~SMP_SEC_KEY_TYPE_LK;
+        }
+        SMP_TRACE_DEBUG("%s rcvs upgrades: i_keys=0x%x r_keys=0x%x "
+                          "(i-initiator r-responder)",
+                          __func__, p_cb->local_i_key, p_cb->local_r_key);
+
+        if (/*((p_cb->peer_auth_req & SMP_AUTH_BOND) ||
+             (p_cb->loc_auth_req & SMP_AUTH_BOND)) &&*/
+            (p_cb->local_i_key || p_cb->local_r_key))
+        {
+            smp_sm_event(p_cb, SMP_BOND_REQ_EVT, NULL);
+        }
+        else
+            smp_sm_event(p_cb, SMP_AUTH_CMPL_EVT, &reason);
+    }
+    else if (enc_enable == 0)
+    {
+        /* if failed for encryption after pairing, send callback */
+        if (p_cb->flags & SMP_PAIR_FLAG_ENC_AFTER_PAIR)
+            smp_sm_event(p_cb, SMP_AUTH_CMPL_EVT, &reason);
+        /* if enc failed for old security information */
+        /* if master device, clean up and abck to idle; slave device do nothing */
+        else if (p_cb->role == HCI_ROLE_MASTER)
+        {
+            smp_sm_event(p_cb, SMP_AUTH_CMPL_EVT, &reason);
+        }
+    }
+}
+
+/*******************************************************************************
+** Function     smp_key_pick_key
+** Description  Pick a key distribution function based on the key mask.
+*******************************************************************************/
+void smp_key_pick_key(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    UINT8   key_to_dist = (p_cb->role == HCI_ROLE_SLAVE) ? p_cb->local_r_key : p_cb->local_i_key;
+    UINT8   i = 0;
+
+    SMP_TRACE_DEBUG("%s key_to_dist=0x%x", __func__, key_to_dist);
+    while (i < SMP_KEY_DIST_TYPE_MAX)
+    {
+        SMP_TRACE_DEBUG("key to send = %02x, i = %d",  key_to_dist, i);
+
+        if (key_to_dist & (1 << i))
+        {
+            SMP_TRACE_DEBUG("smp_distribute_act[%d]", i);
+            (* smp_distribute_act[i])(p_cb, p_data);
+            break;
+        }
+        i ++;
+    }
+}
+/*******************************************************************************
+** Function     smp_key_distribution
+** Description  start key distribution if required.
+*******************************************************************************/
+void smp_key_distribution(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    UINT8   reason = SMP_SUCCESS;
+    SMP_TRACE_DEBUG("%s role=%d (0-master) r_keys=0x%x i_keys=0x%x",
+                      __func__, p_cb->role, p_cb->local_r_key, p_cb->local_i_key);
+
+    if (p_cb->role == HCI_ROLE_SLAVE ||
+       (!p_cb->local_r_key && p_cb->role == HCI_ROLE_MASTER))
+    {
+        smp_key_pick_key(p_cb, p_data);
+    }
+
+    if (!p_cb->local_i_key && !p_cb->local_r_key)
+    {
+        /* state check to prevent re-entrant */
+        if (smp_get_state() == SMP_STATE_BOND_PENDING)
+        {
+            if (p_cb->derive_lk)
+            {
+                smp_derive_link_key_from_long_term_key(p_cb, NULL);
+                p_cb->derive_lk = FALSE;
+            }
+
+            if (p_cb->total_tx_unacked == 0)
+                smp_sm_event(p_cb, SMP_AUTH_CMPL_EVT, &reason);
+            else
+                p_cb->wait_for_authorization_complete = TRUE;
+        }
+    }
+}
+
+/*******************************************************************************
+** Function         smp_decide_association_model
+** Description      This function is called to select assoc model to be used for
+**                  STK generation and to start STK generation process.
+**
+*******************************************************************************/
+void smp_decide_association_model(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    UINT8   failure = SMP_UNKNOWN_IO_CAP;
+    UINT8 int_evt = 0;
+    tSMP_KEY key;
+    tSMP_INT_DATA   *p = NULL;
+
+    SMP_TRACE_DEBUG("%s Association Model = %d", __func__, p_cb->selected_association_model);
+
+    switch (p_cb->selected_association_model)
+    {
+        case SMP_MODEL_ENCRYPTION_ONLY:  /* TK = 0, go calculate Confirm */
+            if (p_cb->role == HCI_ROLE_MASTER &&
+                ((p_cb->peer_auth_req & SMP_AUTH_YN_BIT) != 0) &&
+                ((p_cb->loc_auth_req & SMP_AUTH_YN_BIT) == 0))
+            {
+                SMP_TRACE_ERROR ("IO capability does not meet authentication requirement");
+                failure = SMP_PAIR_AUTH_FAIL;
+                p = (tSMP_INT_DATA *)&failure;
+                int_evt = SMP_AUTH_CMPL_EVT;
+            }
+            else
+            {
+                p_cb->sec_level = SMP_SEC_UNAUTHENTICATE;
+                SMP_TRACE_EVENT ("p_cb->sec_level =%d (SMP_SEC_UNAUTHENTICATE) ", p_cb->sec_level );
+
+                key.key_type = SMP_KEY_TYPE_TK;
+                key.p_data = p_cb->tk;
+                p = (tSMP_INT_DATA *)&key;
+
+                memset(p_cb->tk, 0, BT_OCTET16_LEN);
+                /* TK, ready  */
+                int_evt = SMP_KEY_READY_EVT;
+            }
+            break;
+
+        case SMP_MODEL_PASSKEY:
+            p_cb->sec_level = SMP_SEC_AUTHENTICATED;
+            SMP_TRACE_EVENT ("p_cb->sec_level =%d (SMP_SEC_AUTHENTICATED) ", p_cb->sec_level );
+
+            p_cb->cb_evt = SMP_PASSKEY_REQ_EVT;
+            int_evt = SMP_TK_REQ_EVT;
+            break;
+
+        case SMP_MODEL_OOB:
+            SMP_TRACE_ERROR ("Association Model = SMP_MODEL_OOB");
+            p_cb->sec_level = SMP_SEC_AUTHENTICATED;
+            SMP_TRACE_EVENT ("p_cb->sec_level =%d (SMP_SEC_AUTHENTICATED) ", p_cb->sec_level );
+
+            p_cb->cb_evt = SMP_OOB_REQ_EVT;
+            int_evt = SMP_TK_REQ_EVT;
+            break;
+
+        case SMP_MODEL_KEY_NOTIF:
+            p_cb->sec_level = SMP_SEC_AUTHENTICATED;
+            SMP_TRACE_DEBUG("Need to generate Passkey");
+
+            /* generate passkey and notify application */
+            smp_generate_passkey(p_cb, NULL);
+            break;
+
+        case SMP_MODEL_SEC_CONN_JUSTWORKS:
+        case SMP_MODEL_SEC_CONN_NUM_COMP:
+        case SMP_MODEL_SEC_CONN_PASSKEY_ENT:
+        case SMP_MODEL_SEC_CONN_PASSKEY_DISP:
+        case SMP_MODEL_SEC_CONN_OOB:
+            int_evt = SMP_PUBL_KEY_EXCH_REQ_EVT;
+            break;
+
+        case SMP_MODEL_OUT_OF_RANGE:
+            SMP_TRACE_ERROR("Association Model = SMP_MODEL_OUT_OF_RANGE (failed)");
+            p = (tSMP_INT_DATA *)&failure;
+            int_evt = SMP_AUTH_CMPL_EVT;
+            break;
+
+        default:
+            SMP_TRACE_ERROR("Association Model = %d (SOMETHING IS WRONG WITH THE CODE)",
+                             p_cb->selected_association_model);
+            p = (tSMP_INT_DATA *)&failure;
+            int_evt = SMP_AUTH_CMPL_EVT;
+    }
+
+    SMP_TRACE_EVENT ("sec_level=%d ", p_cb->sec_level );
+    if (int_evt)
+        smp_sm_event(p_cb, int_evt, p);
+}
+
+/*******************************************************************************
+** Function     smp_process_io_response
+** Description  process IO response for a slave device.
+*******************************************************************************/
+void smp_process_io_response(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    uint8_t reason = SMP_PAIR_AUTH_FAIL;
+
+    SMP_TRACE_DEBUG("%s", __func__);
+    if (p_cb->flags & SMP_PAIR_FLAGS_WE_STARTED_DD)
+    {
+        /* pairing started by local (slave) Security Request */
+        smp_set_state(SMP_STATE_SEC_REQ_PENDING);
+        smp_send_cmd(SMP_OPCODE_SEC_REQ, p_cb);
+    }
+    else /* plan to send pairing respond */
+    {
+        /* pairing started by peer (master) Pairing Request */
+        p_cb->selected_association_model = smp_select_association_model(p_cb);
+
+        if (p_cb->secure_connections_only_mode_required &&
+            (!(p_cb->le_secure_connections_mode_is_used) ||
+            (p_cb->selected_association_model == SMP_MODEL_SEC_CONN_JUSTWORKS)))
+        {
+            SMP_TRACE_ERROR ("Slave requires secure connection only mode \
+                              but it can't be provided -> Slave fails pairing");
+            smp_sm_event(p_cb, SMP_AUTH_CMPL_EVT, &reason);
+            return;
+        }
+
+        if (p_cb->selected_association_model == SMP_MODEL_SEC_CONN_OOB)
+        {
+            if (smp_request_oob_data(p_cb)) return;
+        }
+
+        // PTS Testing failure modes
+        if (pts_test_send_authentication_complete_failure(p_cb))
+            return;
+
+        smp_send_pair_rsp(p_cb, NULL);
+    }
+}
+
+/*******************************************************************************
+** Function     smp_br_process_slave_keys_response
+** Description  process application keys response for a slave device
+**              (BR/EDR transport).
+*******************************************************************************/
+void smp_br_process_slave_keys_response(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    smp_br_send_pair_response(p_cb, NULL);
+}
+
+/*******************************************************************************
+** Function     smp_br_send_pair_response
+** Description  actions related to sending pairing response over BR/EDR transport.
+*******************************************************************************/
+void smp_br_send_pair_response(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    SMP_TRACE_DEBUG("%s", __func__);
+
+    p_cb->local_i_key &= p_cb->peer_i_key;
+    p_cb->local_r_key &= p_cb->peer_r_key;
+
+    smp_send_cmd (SMP_OPCODE_PAIRING_RSP, p_cb);
+}
+
+/*******************************************************************************
+** Function         smp_pairing_cmpl
+** Description      This function is called to send the pairing complete callback
+**                  and remove the connection if needed.
+*******************************************************************************/
+void smp_pairing_cmpl(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    if (p_cb->total_tx_unacked == 0)
+    {
+        /* update connection parameter to remote preferred */
+        L2CA_EnableUpdateBleConnParams(p_cb->pairing_bda, TRUE);
+        /* process the pairing complete */
+        smp_proc_pairing_cmpl(p_cb);
+    }
+}
+
+/*******************************************************************************
+** Function         smp_pair_terminate
+** Description      This function is called to send the pairing complete callback
+**                  and remove the connection if needed.
+*******************************************************************************/
+void smp_pair_terminate(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    SMP_TRACE_DEBUG("%s", __func__);
+    p_cb->status = SMP_CONN_TOUT;
+    smp_proc_pairing_cmpl(p_cb);
+}
+
+/*******************************************************************************
+** Function         smp_idle_terminate
+** Description      This function calledin idle state to determine to send authentication
+**                  complete or not.
+*******************************************************************************/
+void smp_idle_terminate(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    if (p_cb->flags & SMP_PAIR_FLAGS_WE_STARTED_DD)
+    {
+        SMP_TRACE_DEBUG("Pairing terminated at IDLE state.");
+        p_cb->status = SMP_FAIL;
+        smp_proc_pairing_cmpl(p_cb);
+    }
+}
+
+/*******************************************************************************
+** Function     smp_fast_conn_param
+** Description  apply default connection parameter for pairing process
+*******************************************************************************/
+void smp_fast_conn_param(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    /* disable connection parameter update */
+    L2CA_EnableUpdateBleConnParams(p_cb->pairing_bda, FALSE);
+}
+
+/*******************************************************************************
+** Function     smp_both_have_public_keys
+** Description  The function is called when both local and peer public keys are
+**              saved.
+**              Actions:
+**              - invokes DHKey computation;
+**              - on slave side invokes sending local public key to the peer.
+**              - invokes SC phase 1 process.
+*******************************************************************************/
+void smp_both_have_public_keys(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    SMP_TRACE_DEBUG("%s",__func__);
+
+    /* invokes DHKey computation */
+    smp_compute_dhkey(p_cb);
+
+    /* on slave side invokes sending local public key to the peer */
+    if (p_cb->role == HCI_ROLE_SLAVE)
+        smp_send_pair_public_key(p_cb, NULL);
+
+    smp_sm_event(p_cb, SMP_SC_DHKEY_CMPLT_EVT, NULL);
+}
+
+/*******************************************************************************
+** Function     smp_start_secure_connection_phase1
+** Description  The function starts Secure Connection phase1 i.e. invokes initialization of Secure Connection
+**              phase 1 parameters and starts building/sending to the peer
+**              messages appropriate for the role and association model.
+*******************************************************************************/
+void smp_start_secure_connection_phase1(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    SMP_TRACE_DEBUG("%s", __func__);
+
+    if (p_cb->selected_association_model == SMP_MODEL_SEC_CONN_JUSTWORKS)
+    {
+        p_cb->sec_level = SMP_SEC_UNAUTHENTICATE;
+        SMP_TRACE_EVENT ("p_cb->sec_level =%d (SMP_SEC_UNAUTHENTICATE) ", p_cb->sec_level );
+    }
+    else
+    {
+        p_cb->sec_level = SMP_SEC_AUTHENTICATED;
+        SMP_TRACE_EVENT ("p_cb->sec_level =%d (SMP_SEC_AUTHENTICATED) ", p_cb->sec_level );
+    }
+
+    switch(p_cb->selected_association_model)
+    {
+        case SMP_MODEL_SEC_CONN_JUSTWORKS:
+        case SMP_MODEL_SEC_CONN_NUM_COMP:
+            memset(p_cb->local_random, 0, BT_OCTET16_LEN);
+            smp_start_nonce_generation(p_cb);
+            break;
+        case SMP_MODEL_SEC_CONN_PASSKEY_ENT:
+            /* user has to provide passkey */
+            p_cb->cb_evt = SMP_PASSKEY_REQ_EVT;
+            smp_sm_event(p_cb, SMP_TK_REQ_EVT, NULL);
+            break;
+        case SMP_MODEL_SEC_CONN_PASSKEY_DISP:
+            /* passkey has to be provided to user */
+            SMP_TRACE_DEBUG("Need to generate SC Passkey");
+            smp_generate_passkey(p_cb, NULL);
+            break;
+        case SMP_MODEL_SEC_CONN_OOB:
+            /* use the available OOB information */
+            smp_process_secure_connection_oob_data(p_cb, NULL);
+            break;
+        default:
+            SMP_TRACE_ERROR ("Association Model = %d is not used in LE SC",
+                              p_cb->selected_association_model);
+            break;
+    }
+}
+
+/*******************************************************************************
+** Function     smp_process_local_nonce
+** Description  The function processes new local nonce.
+**
+** Note         It is supposed to be called in SC phase1.
+*******************************************************************************/
+void smp_process_local_nonce(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    SMP_TRACE_DEBUG("%s", __func__);
+
+    switch(p_cb->selected_association_model)
+    {
+        case SMP_MODEL_SEC_CONN_JUSTWORKS:
+        case SMP_MODEL_SEC_CONN_NUM_COMP:
+            if (p_cb->role == HCI_ROLE_SLAVE)
+            {
+                /* slave calculates and sends local commitment */
+                smp_calculate_local_commitment(p_cb);
+                smp_send_commitment(p_cb, NULL);
+                /* slave has to wait for peer nonce */
+                smp_set_state(SMP_STATE_WAIT_NONCE);
+            }
+            else    /* i.e. master */
+            {
+                if (p_cb->flags & SMP_PAIR_FLAG_HAVE_PEER_COMM)
+                {
+                    /* slave commitment is already received, send local nonce, wait for remote nonce*/
+                    SMP_TRACE_DEBUG("master in assoc mode = %d \
+                    already rcvd slave commitment - race condition",
+                                      p_cb->selected_association_model);
+                    p_cb->flags &= ~SMP_PAIR_FLAG_HAVE_PEER_COMM;
+                    smp_send_rand(p_cb, NULL);
+                    smp_set_state(SMP_STATE_WAIT_NONCE);
+                }
+            }
+            break;
+        case SMP_MODEL_SEC_CONN_PASSKEY_ENT:
+        case SMP_MODEL_SEC_CONN_PASSKEY_DISP:
+            smp_calculate_local_commitment(p_cb);
+
+            if (p_cb->role == HCI_ROLE_MASTER)
+            {
+                smp_send_commitment(p_cb, NULL);
+            }
+            else    /* slave */
+            {
+                if (p_cb->flags & SMP_PAIR_FLAG_HAVE_PEER_COMM)
+                {
+                    /* master commitment is already received */
+                    smp_send_commitment(p_cb, NULL);
+                    smp_set_state(SMP_STATE_WAIT_NONCE);
+                }
+            }
+            break;
+        case SMP_MODEL_SEC_CONN_OOB:
+            if (p_cb->role == HCI_ROLE_MASTER)
+            {
+                smp_send_rand(p_cb, NULL);
+            }
+
+            smp_set_state(SMP_STATE_WAIT_NONCE);
+            break;
+        default:
+            SMP_TRACE_ERROR ("Association Model = %d is not used in LE SC",
+                              p_cb->selected_association_model);
+            break;
+    }
+}
+
+/*******************************************************************************
+** Function     smp_process_peer_nonce
+** Description  The function processes newly received and saved in CB peer nonce.
+**              The actions depend on the selected association model and the role.
+**
+** Note         It is supposed to be called in SC phase1.
+*******************************************************************************/
+void smp_process_peer_nonce(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    UINT8   reason;
+
+    SMP_TRACE_DEBUG("%s start ", __func__);
+
+    // PTS Testing failure modes
+    if (p_cb->cert_failure == 1) {
+        SMP_TRACE_ERROR("%s failure case = %d", __func__, p_cb->cert_failure);
+        reason = p_cb->failure = SMP_CONFIRM_VALUE_ERR;
+        smp_sm_event(p_cb, SMP_AUTH_CMPL_EVT, &reason);
+        return;
+    }
+
+    switch(p_cb->selected_association_model)
+    {
+        case SMP_MODEL_SEC_CONN_JUSTWORKS:
+        case SMP_MODEL_SEC_CONN_NUM_COMP:
+            /* in these models only master receives commitment */
+            if (p_cb->role == HCI_ROLE_MASTER)
+            {
+                if (!smp_check_commitment(p_cb))
+                {
+                    reason = p_cb->failure = SMP_CONFIRM_VALUE_ERR;
+                    smp_sm_event(p_cb, SMP_AUTH_CMPL_EVT, &reason);
+                    break;
+                }
+            }
+            else
+            {
+                /* slave sends local nonce */
+                smp_send_rand(p_cb, NULL);
+            }
+
+            if(p_cb->selected_association_model == SMP_MODEL_SEC_CONN_JUSTWORKS)
+            {
+                /* go directly to phase 2 */
+                smp_sm_event(p_cb, SMP_SC_PHASE1_CMPLT_EVT, NULL);
+            }
+            else    /* numeric comparison */
+            {
+                smp_set_state(SMP_STATE_WAIT_NONCE);
+                smp_sm_event(p_cb, SMP_SC_CALC_NC_EVT, NULL);
+            }
+            break;
+        case SMP_MODEL_SEC_CONN_PASSKEY_ENT:
+        case SMP_MODEL_SEC_CONN_PASSKEY_DISP:
+            if (!smp_check_commitment(p_cb) && p_cb->cert_failure != 9)
+            {
+                reason = p_cb->failure = SMP_CONFIRM_VALUE_ERR;
+                smp_sm_event(p_cb, SMP_AUTH_CMPL_EVT, &reason);
+                break;
+            }
+
+            if (p_cb->role == HCI_ROLE_SLAVE)
+            {
+                smp_send_rand(p_cb, NULL);
+            }
+
+            if (++p_cb->round < 20)
+            {
+                smp_set_state(SMP_STATE_SEC_CONN_PHS1_START);
+                p_cb->flags &= ~SMP_PAIR_FLAG_HAVE_PEER_COMM;
+                smp_start_nonce_generation(p_cb);
+                break;
+            }
+
+            smp_sm_event(p_cb, SMP_SC_PHASE1_CMPLT_EVT, NULL);
+            break;
+        case SMP_MODEL_SEC_CONN_OOB:
+            if (p_cb->role == HCI_ROLE_SLAVE)
+            {
+                smp_send_rand(p_cb, NULL);
+            }
+
+            smp_sm_event(p_cb, SMP_SC_PHASE1_CMPLT_EVT, NULL);
+            break;
+        default:
+            SMP_TRACE_ERROR ("Association Model = %d is not used in LE SC",
+                              p_cb->selected_association_model);
+            break;
+    }
+
+    SMP_TRACE_DEBUG("%s end ",__FUNCTION__);
+}
+
+/*******************************************************************************
+** Function     smp_match_dhkey_checks
+** Description  checks if the calculated peer DHKey Check value is the same as
+**              received from the peer DHKey check value.
+*******************************************************************************/
+void smp_match_dhkey_checks(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    UINT8 reason = SMP_DHKEY_CHK_FAIL;
+
+    SMP_TRACE_DEBUG("%s", __func__);
+
+    if (memcmp(p_data->key.p_data, p_cb->remote_dhkey_check, BT_OCTET16_LEN))
+    {
+        SMP_TRACE_WARNING ("dhkey chcks do no match");
+        p_cb->failure = reason;
+        smp_sm_event(p_cb, SMP_AUTH_CMPL_EVT, &reason);
+        return;
+    }
+
+    SMP_TRACE_EVENT ("dhkey chcks match");
+
+    /* compare the max encryption key size, and save the smaller one for the link */
+    if (p_cb->peer_enc_size < p_cb->loc_enc_size)
+        p_cb->loc_enc_size = p_cb->peer_enc_size;
+
+    if (p_cb->role == HCI_ROLE_SLAVE)
+    {
+        smp_sm_event(p_cb, SMP_PAIR_DHKEY_CHCK_EVT, NULL);
+    }
+    else
+    {
+        /* master device always use received i/r key as keys to distribute */
+        p_cb->local_i_key = p_cb->peer_i_key;
+        p_cb->local_r_key = p_cb->peer_r_key;
+        smp_sm_event(p_cb, SMP_ENC_REQ_EVT, NULL);
+    }
+}
+
+/*******************************************************************************
+** Function     smp_move_to_secure_connections_phase2
+** Description  Signal State Machine to start SC phase 2 initialization (to
+**              compute local DHKey Check value).
+**
+** Note         SM is supposed to be in the state SMP_STATE_SEC_CONN_PHS2_START.
+*******************************************************************************/
+void smp_move_to_secure_connections_phase2(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    SMP_TRACE_DEBUG("%s",__func__);
+    smp_sm_event(p_cb, SMP_SC_PHASE1_CMPLT_EVT, NULL);
+}
+
+/*******************************************************************************
+** Function     smp_phase_2_dhkey_checks_are_present
+** Description  generates event if dhkey check from the peer is already received.
+**
+** Note         It is supposed to be used on slave to prevent race condition.
+**              It is supposed to be called after slave dhkey check is calculated.
+*******************************************************************************/
+void smp_phase_2_dhkey_checks_are_present(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    SMP_TRACE_DEBUG("%s",__func__);
+
+    if (p_cb->flags & SMP_PAIR_FLAG_HAVE_PEER_DHK_CHK)
+        smp_sm_event(p_cb, SMP_SC_2_DHCK_CHKS_PRES_EVT, NULL);
+}
+
+/*******************************************************************************
+** Function     smp_wait_for_both_public_keys
+** Description  generates SMP_BOTH_PUBL_KEYS_RCVD_EVT event when both local and master
+**              public keys are available.
+**
+** Note         on the slave it is used to prevent race condition.
+**
+*******************************************************************************/
+void smp_wait_for_both_public_keys(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    SMP_TRACE_DEBUG("%s",__func__);
+
+    if ((p_cb->flags & SMP_PAIR_FLAG_HAVE_PEER_PUBL_KEY) &&
+        (p_cb->flags & SMP_PAIR_FLAG_HAVE_LOCAL_PUBL_KEY))
+    {
+        if ((p_cb->role == HCI_ROLE_SLAVE) &&
+            ((p_cb->req_oob_type == SMP_OOB_LOCAL) || (p_cb->req_oob_type == SMP_OOB_BOTH)))
+        {
+            smp_set_state(SMP_STATE_PUBLIC_KEY_EXCH);
+        }
+        smp_sm_event(p_cb, SMP_BOTH_PUBL_KEYS_RCVD_EVT, NULL);
+    }
+}
+
+/*******************************************************************************
+** Function     smp_start_passkey_verification
+** Description  Starts SC passkey entry verification.
+*******************************************************************************/
+void smp_start_passkey_verification(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    UINT8 *p = NULL;
+
+    SMP_TRACE_DEBUG("%s", __func__);
+    p = p_cb->local_random;
+    UINT32_TO_STREAM(p, p_data->passkey);
+
+    p = p_cb->peer_random;
+    UINT32_TO_STREAM(p, p_data->passkey);
+
+    p_cb->round = 0;
+    smp_start_nonce_generation(p_cb);
+}
+
+/*******************************************************************************
+** Function     smp_process_secure_connection_oob_data
+** Description  Processes local/peer SC OOB data received from somewhere.
+*******************************************************************************/
+void smp_process_secure_connection_oob_data(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    SMP_TRACE_DEBUG("%s", __func__);
+
+    tSMP_SC_OOB_DATA *p_sc_oob_data = &p_cb->sc_oob_data;
+    if (p_sc_oob_data->loc_oob_data.present)
+    {
+        memcpy(p_cb->local_random, p_sc_oob_data->loc_oob_data.randomizer,
+               sizeof(p_cb->local_random));
+    }
+    else
+    {
+        SMP_TRACE_EVENT ("local OOB randomizer is absent");
+        memset(p_cb->local_random, 0, sizeof (p_cb->local_random));
+    }
+
+    if (!p_sc_oob_data->peer_oob_data.present)
+    {
+        SMP_TRACE_EVENT ("peer OOB data is absent");
+        memset(p_cb->peer_random, 0, sizeof (p_cb->peer_random));
+    }
+    else
+    {
+        memcpy(p_cb->peer_random, p_sc_oob_data->peer_oob_data.randomizer,
+               sizeof(p_cb->peer_random));
+        memcpy(p_cb->remote_commitment, p_sc_oob_data->peer_oob_data.commitment,
+               sizeof(p_cb->remote_commitment));
+
+        UINT8 reason = SMP_CONFIRM_VALUE_ERR;
+        /* check commitment */
+        if (!smp_check_commitment(p_cb))
+        {
+            p_cb->failure = reason;
+            smp_sm_event(p_cb, SMP_AUTH_CMPL_EVT, &reason);
+            return;
+        }
+
+        if (p_cb->peer_oob_flag != SMP_OOB_PRESENT)
+        {
+            /* the peer doesn't have local randomiser */
+            SMP_TRACE_EVENT ("peer didn't receive local OOB data, set local randomizer to 0");
+            memset(p_cb->local_random, 0, sizeof (p_cb->local_random));
+        }
+    }
+
+    print128(p_cb->local_random, (const UINT8 *)"local OOB randomizer");
+    print128(p_cb->peer_random, (const UINT8 *)"peer OOB randomizer");
+    smp_start_nonce_generation(p_cb);
+}
+
+/*******************************************************************************
+** Function     smp_set_local_oob_keys
+** Description  Saves calculated private/public keys in sc_oob_data.loc_oob_data,
+**              starts nonce generation
+**              (to be saved in sc_oob_data.loc_oob_data.randomizer).
+*******************************************************************************/
+void smp_set_local_oob_keys(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    SMP_TRACE_DEBUG("%s", __func__);
+
+    memcpy(p_cb->sc_oob_data.loc_oob_data.private_key_used, p_cb->private_key,
+           BT_OCTET32_LEN);
+    p_cb->sc_oob_data.loc_oob_data.publ_key_used = p_cb->loc_publ_key;
+    smp_start_nonce_generation(p_cb);
+}
+
+/*******************************************************************************
+** Function     smp_set_local_oob_random_commitment
+** Description  Saves calculated randomizer and commitment in sc_oob_data.loc_oob_data,
+**              passes sc_oob_data.loc_oob_data up for safekeeping.
+*******************************************************************************/
+void smp_set_local_oob_random_commitment(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    SMP_TRACE_DEBUG("%s", __func__);
+    memcpy(p_cb->sc_oob_data.loc_oob_data.randomizer, p_cb->rand,
+           BT_OCTET16_LEN);
+
+    smp_calculate_f4(p_cb->sc_oob_data.loc_oob_data.publ_key_used.x,
+                     p_cb->sc_oob_data.loc_oob_data.publ_key_used.x,
+                     p_cb->sc_oob_data.loc_oob_data.randomizer, 0,
+                     p_cb->sc_oob_data.loc_oob_data.commitment);
+
+#if SMP_DEBUG == TRUE
+    UINT8   *p_print = NULL;
+    SMP_TRACE_DEBUG("local SC OOB data set:");
+    p_print = (UINT8*) &p_cb->sc_oob_data.loc_oob_data.addr_sent_to;
+    smp_debug_print_nbyte_little_endian (p_print, (const UINT8 *)"addr_sent_to",
+                                         sizeof(tBLE_BD_ADDR));
+    p_print = (UINT8*) &p_cb->sc_oob_data.loc_oob_data.private_key_used;
+    smp_debug_print_nbyte_little_endian (p_print, (const UINT8 *)"private_key_used",
+                                         BT_OCTET32_LEN);
+    p_print = (UINT8*) &p_cb->sc_oob_data.loc_oob_data.publ_key_used.x;
+    smp_debug_print_nbyte_little_endian (p_print, (const UINT8 *)"publ_key_used.x",
+                                         BT_OCTET32_LEN);
+    p_print = (UINT8*) &p_cb->sc_oob_data.loc_oob_data.publ_key_used.y;
+    smp_debug_print_nbyte_little_endian (p_print, (const UINT8 *)"publ_key_used.y",
+                                         BT_OCTET32_LEN);
+    p_print = (UINT8*) &p_cb->sc_oob_data.loc_oob_data.randomizer;
+    smp_debug_print_nbyte_little_endian (p_print, (const UINT8 *)"randomizer",
+                                         BT_OCTET16_LEN);
+    p_print = (UINT8*) &p_cb->sc_oob_data.loc_oob_data.commitment;
+    smp_debug_print_nbyte_little_endian (p_print,(const UINT8 *) "commitment",
+                                         BT_OCTET16_LEN);
+    SMP_TRACE_DEBUG("");
+#endif
+
+    /* pass created OOB data up */
+    p_cb->cb_evt = SMP_SC_LOC_OOB_DATA_UP_EVT;
+    smp_send_app_cback(p_cb, NULL);
+
+    smp_cb_cleanup(p_cb);
+}
+
+/*******************************************************************************
+**
+** Function         smp_link_encrypted
+**
+** Description      This function is called when link is encrypted and notified to
+**                  slave device. Proceed to to send LTK, DIV and ER to master if
+**                  bonding the devices.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void smp_link_encrypted(BD_ADDR bda, UINT8 encr_enable)
+{
+    tSMP_CB *p_cb = &smp_cb;
+
+    SMP_TRACE_DEBUG("%s encr_enable=%d", __func__, encr_enable);
+
+    if (memcmp(&smp_cb.pairing_bda[0], bda, BD_ADDR_LEN) == 0)
+    {
+        /* encryption completed with STK, remmeber the key size now, could be overwite
+        *  when key exchange happens                                        */
+        if (p_cb->loc_enc_size != 0 && encr_enable)
+        {
+            /* update the link encryption key size if a SMP pairing just performed */
+            btm_ble_update_sec_key_size(bda, p_cb->loc_enc_size);
+        }
+
+        smp_sm_event(&smp_cb, SMP_ENCRYPTED_EVT, &encr_enable);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         smp_proc_ltk_request
+**
+** Description      This function is called when LTK request is received from
+**                  controller.
+**
+** Returns          void
+**
+*******************************************************************************/
+BOOLEAN smp_proc_ltk_request(BD_ADDR bda)
+{
+    SMP_TRACE_DEBUG("%s state = %d",  __func__, smp_cb.state);
+    BOOLEAN match = FALSE;
+
+    if (!memcmp(bda, smp_cb.pairing_bda, BD_ADDR_LEN))
+    {
+        match = TRUE;
+    } else {
+        BD_ADDR dummy_bda = {0};
+        tBTM_SEC_DEV_REC *p_dev_rec = btm_find_dev(bda);
+        if (p_dev_rec != NULL &&
+            0 == memcmp(p_dev_rec->ble.pseudo_addr, smp_cb.pairing_bda, BD_ADDR_LEN) &&
+            0 != memcmp(p_dev_rec->ble.pseudo_addr, dummy_bda, BD_ADDR_LEN))
+        {
+            match = TRUE;
+        }
+    }
+
+    if (match && smp_cb.state == SMP_STATE_ENCRYPTION_PENDING)
+    {
+        smp_sm_event(&smp_cb, SMP_ENC_REQ_EVT, NULL);
+        return TRUE;
+    }
+
+    return FALSE;
+}
+
+/*******************************************************************************
+**
+** Function         smp_process_secure_connection_long_term_key
+**
+** Description      This function is called to process SC LTK.
+**                  SC LTK is calculated and used instead of STK.
+**                  Here SC LTK is saved in BLE DB.
+**
+** Returns          void
+**
+*******************************************************************************/
+void smp_process_secure_connection_long_term_key(void)
+{
+    tSMP_CB     *p_cb = &smp_cb;
+
+    SMP_TRACE_DEBUG("%s", __func__);
+    smp_save_secure_connections_long_term_key(p_cb);
+
+    smp_update_key_mask (p_cb, SMP_SEC_KEY_TYPE_ENC, FALSE);
+    smp_key_distribution(p_cb, NULL);
+}
+
+/*******************************************************************************
+**
+** Function         smp_set_derive_link_key
+**
+** Description      This function is called to set flag that indicates that
+**                  BR/EDR LK has to be derived from LTK after all keys are
+**                  distributed.
+**
+** Returns          void
+**
+*******************************************************************************/
+void smp_set_derive_link_key(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    SMP_TRACE_DEBUG ("%s", __func__);
+    p_cb->derive_lk = TRUE;
+    smp_update_key_mask (p_cb, SMP_SEC_KEY_TYPE_LK, FALSE);
+    smp_key_distribution(p_cb, NULL);
+}
+
+/*******************************************************************************
+**
+** Function         smp_derive_link_key_from_long_term_key
+**
+** Description      This function is called to derive BR/EDR LK from LTK.
+**
+** Returns          void
+**
+*******************************************************************************/
+void smp_derive_link_key_from_long_term_key(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    tSMP_STATUS status = SMP_PAIR_FAIL_UNKNOWN;
+
+    SMP_TRACE_DEBUG("%s", __func__);
+    if (!smp_calculate_link_key_from_long_term_key(p_cb))
+    {
+        SMP_TRACE_ERROR("%s failed", __FUNCTION__);
+        smp_sm_event(p_cb, SMP_AUTH_CMPL_EVT, &status);
+        return;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         smp_br_process_link_key
+**
+** Description      This function is called to process BR/EDR LK:
+**                  - to derive SMP LTK from BR/EDR LK;
+*8                  - to save SMP LTK.
+**
+** Returns          void
+**
+*******************************************************************************/
+void smp_br_process_link_key(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    tSMP_STATUS status = SMP_PAIR_FAIL_UNKNOWN;
+
+    SMP_TRACE_DEBUG("%s", __func__);
+    if (!smp_calculate_long_term_key_from_link_key(p_cb))
+    {
+        SMP_TRACE_ERROR ("%s failed",__FUNCTION__);
+        smp_sm_event(p_cb, SMP_BR_AUTH_CMPL_EVT, &status);
+        return;
+    }
+
+    SMP_TRACE_DEBUG("%s: LTK derivation from LK successfully completed", __FUNCTION__);
+    smp_save_secure_connections_long_term_key(p_cb);
+    smp_update_key_mask (p_cb, SMP_SEC_KEY_TYPE_ENC, FALSE);
+    smp_br_select_next_key(p_cb, NULL);
+}
+
+/*******************************************************************************
+** Function     smp_key_distribution_by_transport
+** Description  depending on the transport used at the moment calls either
+**              smp_key_distribution(...) or smp_br_key_distribution(...).
+*******************************************************************************/
+void smp_key_distribution_by_transport(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    SMP_TRACE_DEBUG("%s", __func__);
+    if (p_cb->smp_over_br)
+    {
+        smp_br_select_next_key(p_cb, NULL);
+    }
+    else
+    {
+        smp_key_distribution(p_cb, NULL);
+    }
+}
+
+/*******************************************************************************
+** Function         smp_br_pairing_complete
+** Description      This function is called to send the pairing complete callback
+**                  and remove the connection if needed.
+*******************************************************************************/
+void smp_br_pairing_complete(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    SMP_TRACE_DEBUG("%s", __func__);
+
+    if (p_cb->total_tx_unacked == 0)
+    {
+        /* process the pairing complete */
+        smp_proc_pairing_cmpl(p_cb);
+    }
+}
+
+#endif
diff --git a/rtkbt/code/bt/stack/smp/smp_api.c b/rtkbt/code/bt/stack/smp/smp_api.c
new file mode 100755
index 0000000..b3373b5
--- /dev/null
+++ b/rtkbt/code/bt/stack/smp/smp_api.c
@@ -0,0 +1,621 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2008-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains the implementation of the SMP interface used by
+ *  applications that can run over an SMP.
+ *
+ ******************************************************************************/
+#include <string.h>
+
+#include "bt_target.h"
+#include "bt_utils.h"
+#include "stack_config.h"
+
+#if SMP_INCLUDED == TRUE
+    #include "smp_int.h"
+    #include "smp_api.h"
+    #include "l2cdefs.h"
+    #include "l2c_int.h"
+    #include "btm_int.h"
+    #include "hcimsgs.h"
+
+    #include "btu.h"
+    #include "p_256_ecc_pp.h"
+
+/*******************************************************************************
+**
+** Function         SMP_Init
+**
+** Description      This function initializes the SMP unit.
+**
+** Returns          void
+**
+*******************************************************************************/
+void SMP_Init(void)
+{
+    memset(&smp_cb, 0, sizeof(tSMP_CB));
+    smp_cb.smp_rsp_timer_ent = alarm_new("smp.smp_rsp_timer_ent");
+
+#if defined(SMP_INITIAL_TRACE_LEVEL)
+    smp_cb.trace_level = SMP_INITIAL_TRACE_LEVEL;
+#else
+    smp_cb.trace_level = BT_TRACE_LEVEL_NONE;    /* No traces */
+#endif
+    SMP_TRACE_EVENT ("%s", __FUNCTION__);
+
+    smp_l2cap_if_init();
+    /* initialization of P-256 parameters */
+    p_256_init_curve(KEY_LENGTH_DWORDS_P256);
+
+    /* Initialize failure case for certification */
+    smp_cb.cert_failure = stack_config_get_interface()->get_pts_smp_failure_case();
+    if (smp_cb.cert_failure)
+        SMP_TRACE_ERROR ("%s PTS FAILURE MODE IN EFFECT (CASE %d)", __func__, smp_cb.cert_failure);
+}
+
+
+/*******************************************************************************
+**
+** Function         SMP_SetTraceLevel
+**
+** Description      This function sets the trace level for SMP.  If called with
+**                  a value of 0xFF, it simply returns the current trace level.
+**
+**                  Input Parameters:
+**                      level:  The level to set the GATT tracing to:
+**                      0xff-returns the current setting.
+**                      0-turns off tracing.
+**                      >= 1-Errors.
+**                      >= 2-Warnings.
+**                      >= 3-APIs.
+**                      >= 4-Events.
+**                      >= 5-Debug.
+**
+** Returns          The new or current trace level
+**
+*******************************************************************************/
+extern UINT8 SMP_SetTraceLevel (UINT8 new_level)
+{
+    if (new_level != 0xFF)
+        smp_cb.trace_level = new_level;
+
+    return(smp_cb.trace_level);
+}
+
+
+/*******************************************************************************
+**
+** Function         SMP_Register
+**
+** Description      This function register for the SMP services callback.
+**
+** Returns          void
+**
+*******************************************************************************/
+BOOLEAN SMP_Register (tSMP_CALLBACK *p_cback)
+{
+    SMP_TRACE_EVENT ("SMP_Register state=%d", smp_cb.state);
+
+    if (smp_cb.p_callback != NULL)
+    {
+        SMP_TRACE_ERROR ("SMP_Register: duplicate registration, overwrite it");
+    }
+    smp_cb.p_callback = p_cback;
+
+    return(TRUE);
+
+}
+
+/*******************************************************************************
+**
+** Function         SMP_Pair
+**
+** Description      This function call to perform a SMP pairing with peer device.
+**                  Device support one SMP pairing at one time.
+**
+** Parameters       bd_addr - peer device bd address.
+**
+** Returns          None
+**
+*******************************************************************************/
+tSMP_STATUS SMP_Pair (BD_ADDR bd_addr)
+{
+    tSMP_CB   *p_cb = &smp_cb;
+    UINT8     status = SMP_PAIR_INTERNAL_ERR;
+
+    SMP_TRACE_EVENT ("%s state=%d br_state=%d flag=0x%x ",
+                      __FUNCTION__, p_cb->state, p_cb->br_state, p_cb->flags);
+    if (p_cb->state != SMP_STATE_IDLE || p_cb->flags & SMP_PAIR_FLAGS_WE_STARTED_DD ||
+        p_cb->smp_over_br)
+    {
+        /* pending security on going, reject this one */
+        return SMP_BUSY;
+    }
+    else
+    {
+        p_cb->flags = SMP_PAIR_FLAGS_WE_STARTED_DD;
+
+        memcpy (p_cb->pairing_bda, bd_addr, BD_ADDR_LEN);
+
+        if (!L2CA_ConnectFixedChnl (L2CAP_SMP_CID, bd_addr))
+        {
+            SMP_TRACE_ERROR("%s: L2C connect fixed channel failed.", __FUNCTION__);
+            smp_sm_event(p_cb, SMP_AUTH_CMPL_EVT, &status);
+            return status;
+        }
+
+        return SMP_STARTED;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         SMP_BR_PairWith
+**
+** Description      This function is called to start a SMP pairing over BR/EDR.
+**                  Device support one SMP pairing at one time.
+**
+** Parameters       bd_addr - peer device bd address.
+**
+** Returns          SMP_STARTED if pairing started, otherwise reason for failure.
+**
+*******************************************************************************/
+tSMP_STATUS SMP_BR_PairWith (BD_ADDR bd_addr)
+{
+    tSMP_CB   *p_cb = &smp_cb;
+    UINT8     status = SMP_PAIR_INTERNAL_ERR;
+
+    SMP_TRACE_EVENT ("%s state=%d br_state=%d flag=0x%x ",
+                      __func__, p_cb->state, p_cb->br_state, p_cb->flags);
+
+    if (p_cb->state != SMP_STATE_IDLE ||
+        p_cb->smp_over_br ||
+        p_cb->flags & SMP_PAIR_FLAGS_WE_STARTED_DD)
+    {
+        /* pending security on going, reject this one */
+        return SMP_BUSY;
+    }
+
+    p_cb->role = HCI_ROLE_MASTER;
+    p_cb->flags = SMP_PAIR_FLAGS_WE_STARTED_DD;
+    p_cb->smp_over_br = TRUE;
+
+    memcpy (p_cb->pairing_bda, bd_addr, BD_ADDR_LEN);
+
+    if (!L2CA_ConnectFixedChnl (L2CAP_SMP_BR_CID, bd_addr))
+    {
+        SMP_TRACE_ERROR("%s: L2C connect fixed channel failed.",__FUNCTION__);
+        smp_br_state_machine_event(p_cb, SMP_BR_AUTH_CMPL_EVT, &status);
+        return status;
+    }
+
+    return SMP_STARTED;
+}
+
+/*******************************************************************************
+**
+** Function         SMP_PairCancel
+**
+** Description      This function call to cancel a SMP pairing with peer device.
+**
+** Parameters       bd_addr - peer device bd address.
+**
+** Returns          TRUE - Pairining is cancelled
+**
+*******************************************************************************/
+BOOLEAN SMP_PairCancel (BD_ADDR bd_addr)
+{
+    tSMP_CB   *p_cb = &smp_cb;
+    UINT8     err_code = SMP_PAIR_FAIL_UNKNOWN;
+    BOOLEAN   status = FALSE;
+
+    // PTS SMP failure test cases
+    if (p_cb->cert_failure == 7)
+        err_code = SMP_PASSKEY_ENTRY_FAIL;
+    else if (p_cb->cert_failure == 8)
+        err_code = SMP_NUMERIC_COMPAR_FAIL;
+
+    BTM_TRACE_EVENT ("SMP_CancelPair state=%d flag=0x%x ", p_cb->state, p_cb->flags);
+    if ( (p_cb->state != SMP_STATE_IDLE)  &&
+         (!memcmp (p_cb->pairing_bda, bd_addr, BD_ADDR_LEN)) )
+    {
+        p_cb->is_pair_cancel = TRUE;
+        SMP_TRACE_DEBUG("Cancel Pairing: set fail reason Unknown");
+        smp_sm_event(p_cb, SMP_AUTH_CMPL_EVT, &err_code);
+        status = TRUE;
+    }
+
+    return status;
+}
+/*******************************************************************************
+**
+** Function         SMP_SecurityGrant
+**
+** Description      This function is called to grant security process.
+**
+** Parameters       bd_addr - peer device bd address.
+**                  res     - result of the operation SMP_SUCCESS if success.
+**                            Otherwise, SMP_REPEATED_ATTEMPTS is too many attempts.
+**
+** Returns          None
+**
+*******************************************************************************/
+void SMP_SecurityGrant(BD_ADDR bd_addr, UINT8 res)
+{
+    SMP_TRACE_EVENT ("SMP_SecurityGrant ");
+
+    if (smp_cb.smp_over_br)
+    {
+        if (smp_cb.br_state != SMP_BR_STATE_WAIT_APP_RSP ||
+            smp_cb.cb_evt != SMP_SEC_REQUEST_EVT ||
+            memcmp (smp_cb.pairing_bda, bd_addr, BD_ADDR_LEN))
+        {
+            return;
+        }
+
+        /* clear the SMP_SEC_REQUEST_EVT event after get grant */
+        /* avoid generating duplicate pair request */
+        smp_cb.cb_evt = 0;
+        smp_br_state_machine_event(&smp_cb, SMP_BR_API_SEC_GRANT_EVT, &res);
+        return;
+    }
+
+    if (smp_cb.state != SMP_STATE_WAIT_APP_RSP ||
+        smp_cb.cb_evt != SMP_SEC_REQUEST_EVT ||
+        memcmp (smp_cb.pairing_bda, bd_addr, BD_ADDR_LEN))
+        return;
+    /* clear the SMP_SEC_REQUEST_EVT event after get grant */
+    /* avoid generate duplicate pair request */
+    smp_cb.cb_evt = 0;
+    smp_sm_event(&smp_cb, SMP_API_SEC_GRANT_EVT, &res);
+}
+
+/*******************************************************************************
+**
+** Function         SMP_PasskeyReply
+**
+** Description      This function is called after Security Manager submitted
+**                  passkey request to the application.
+**
+** Parameters:      bd_addr      - Address of the device for which passkey was requested
+**                  res          - result of the operation SMP_SUCCESS if success
+**                  passkey - numeric value in the range of
+**                  BTM_MIN_PASSKEY_VAL(0) - BTM_MAX_PASSKEY_VAL(999999(0xF423F)).
+**
+*******************************************************************************/
+void SMP_PasskeyReply (BD_ADDR bd_addr, UINT8 res, UINT32 passkey)
+{
+    tSMP_CB *p_cb = & smp_cb;
+    UINT8   failure = SMP_PASSKEY_ENTRY_FAIL;
+
+    SMP_TRACE_EVENT ("SMP_PasskeyReply: Key: %d  Result:%d",
+                      passkey, res);
+
+    /* If timeout already expired or has been canceled, ignore the reply */
+    if (p_cb->cb_evt != SMP_PASSKEY_REQ_EVT)
+    {
+        SMP_TRACE_WARNING ("SMP_PasskeyReply() - Wrong State: %d", p_cb->state);
+        return;
+    }
+
+    if (memcmp (bd_addr, p_cb->pairing_bda, BD_ADDR_LEN) != 0)
+    {
+        SMP_TRACE_ERROR ("SMP_PasskeyReply() - Wrong BD Addr");
+        return;
+    }
+
+    if (btm_find_dev (bd_addr) == NULL)
+    {
+        SMP_TRACE_ERROR ("SMP_PasskeyReply() - no dev CB");
+        return;
+    }
+
+    if (passkey > BTM_MAX_PASSKEY_VAL || res != SMP_SUCCESS)
+    {
+        SMP_TRACE_WARNING ("SMP_PasskeyReply() - Wrong key len: %d or passkey entry fail", passkey);
+        /* send pairing failure */
+        smp_sm_event(p_cb, SMP_AUTH_CMPL_EVT, &failure);
+
+    }
+    else if (p_cb->selected_association_model == SMP_MODEL_SEC_CONN_PASSKEY_ENT)
+    {
+        smp_sm_event(&smp_cb, SMP_SC_KEY_READY_EVT, &passkey);
+    }
+    else
+    {
+        smp_convert_string_to_tk(p_cb->tk, passkey);
+    }
+
+    return;
+}
+
+/*******************************************************************************
+**
+** Function         SMP_ConfirmReply
+**
+** Description      This function is called after Security Manager submitted
+**                  numeric comparison request to the application.
+**
+** Parameters:      bd_addr      - Address of the device with which numeric
+**                                 comparison was requested
+**                  res          - comparison result SMP_SUCCESS if success
+**
+*******************************************************************************/
+void SMP_ConfirmReply (BD_ADDR bd_addr, UINT8 res)
+{
+    tSMP_CB *p_cb = & smp_cb;
+    UINT8   failure = SMP_NUMERIC_COMPAR_FAIL;
+
+    SMP_TRACE_EVENT ("%s: Result:%d", __FUNCTION__, res);
+
+    /* If timeout already expired or has been canceled, ignore the reply */
+    if (p_cb->cb_evt != SMP_NC_REQ_EVT)
+    {
+        SMP_TRACE_WARNING ("%s() - Wrong State: %d", __FUNCTION__,p_cb->state);
+        return;
+    }
+
+    if (memcmp (bd_addr, p_cb->pairing_bda, BD_ADDR_LEN) != 0)
+    {
+        SMP_TRACE_ERROR ("%s() - Wrong BD Addr",__FUNCTION__);
+        return;
+    }
+
+    if (btm_find_dev (bd_addr) == NULL)
+    {
+        SMP_TRACE_ERROR ("%s() - no dev CB",__FUNCTION__);
+        return;
+    }
+
+    if (res != SMP_SUCCESS)
+    {
+        SMP_TRACE_WARNING ("%s() - Numeric Comparison fails",__FUNCTION__);
+        /* send pairing failure */
+        smp_sm_event(p_cb, SMP_AUTH_CMPL_EVT, &failure);
+    }
+    else
+    {
+        smp_sm_event(p_cb, SMP_SC_NC_OK_EVT, NULL);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         SMP_OobDataReply
+**
+** Description      This function is called to provide the OOB data for
+**                  SMP in response to SMP_OOB_REQ_EVT
+**
+** Parameters:      bd_addr     - Address of the peer device
+**                  res         - result of the operation SMP_SUCCESS if success
+**                  p_data      - simple pairing Randomizer  C.
+**
+*******************************************************************************/
+void SMP_OobDataReply(BD_ADDR bd_addr, tSMP_STATUS res, UINT8 len, UINT8 *p_data)
+{
+    tSMP_CB *p_cb = & smp_cb;
+    UINT8   failure = SMP_OOB_FAIL;
+    tSMP_KEY        key;
+
+    SMP_TRACE_EVENT ("%s State: %d  res:%d", __FUNCTION__, smp_cb.state, res);
+
+    /* If timeout already expired or has been canceled, ignore the reply */
+    if (p_cb->state != SMP_STATE_WAIT_APP_RSP || p_cb->cb_evt != SMP_OOB_REQ_EVT)
+        return;
+
+    if (res != SMP_SUCCESS || len == 0 || !p_data)
+    {
+        smp_sm_event(p_cb, SMP_AUTH_CMPL_EVT, &failure);
+    }
+    else
+    {
+        if (len > BT_OCTET16_LEN)
+            len = BT_OCTET16_LEN;
+
+        memcpy(p_cb->tk, p_data, len);
+
+        key.key_type    = SMP_KEY_TYPE_TK;
+        key.p_data      = p_cb->tk;
+
+        smp_sm_event(&smp_cb, SMP_KEY_READY_EVT, &key);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         SMP_SecureConnectionOobDataReply
+**
+** Description      This function is called to provide the SC OOB data for
+**                  SMP in response to SMP_SC_OOB_REQ_EVT
+**
+** Parameters:      p_data      - pointer to the data
+**
+*******************************************************************************/
+void SMP_SecureConnectionOobDataReply(UINT8 *p_data)
+{
+    tSMP_CB  *p_cb = &smp_cb;
+
+    UINT8  failure = SMP_OOB_FAIL;
+    tSMP_SC_OOB_DATA  *p_oob = (tSMP_SC_OOB_DATA *) p_data;
+    if (!p_oob)
+    {
+        SMP_TRACE_ERROR("%s received no data",__FUNCTION__);
+        smp_sm_event(p_cb, SMP_AUTH_CMPL_EVT, &failure);
+        return;
+    }
+
+    SMP_TRACE_EVENT ("%s req_oob_type: %d, loc_oob_data.present: %d, "
+                       "peer_oob_data.present: %d",
+                       __FUNCTION__, p_cb->req_oob_type, p_oob->loc_oob_data.present,
+                       p_oob->peer_oob_data.present);
+
+    if (p_cb->state != SMP_STATE_WAIT_APP_RSP || p_cb->cb_evt != SMP_SC_OOB_REQ_EVT)
+        return;
+
+    BOOLEAN  data_missing = FALSE;
+    switch (p_cb->req_oob_type)
+    {
+        case SMP_OOB_PEER:
+            if (!p_oob->peer_oob_data.present)
+                data_missing = TRUE;
+            break;
+        case SMP_OOB_LOCAL:
+            if (!p_oob->loc_oob_data.present)
+                data_missing = TRUE;
+            break;
+        case SMP_OOB_BOTH:
+            if (!p_oob->loc_oob_data.present || !p_oob->peer_oob_data.present)
+                data_missing = TRUE;
+            break;
+        default:
+            SMP_TRACE_EVENT ("Unexpected OOB data type requested. Fail OOB");
+            data_missing = TRUE;
+            break;
+    }
+
+    if (data_missing)
+    {
+        smp_sm_event(p_cb, SMP_AUTH_CMPL_EVT, &failure);
+        return;
+    }
+
+    p_cb->sc_oob_data = *p_oob;
+
+    smp_sm_event(&smp_cb, SMP_SC_OOB_DATA_EVT, p_data);
+}
+
+/*******************************************************************************
+**
+** Function         SMP_Encrypt
+**
+** Description      This function is called to encrypt the data with the specified
+**                  key
+**
+** Parameters:      key                 - Pointer to key key[0] conatins the MSB
+**                  key_len             - key length
+**                  plain_text          - Pointer to data to be encrypted
+**                                        plain_text[0] conatins the MSB
+**                  pt_len              - plain text length
+**                  p_out                - output of the encrypted texts
+**
+**  Returns         Boolean - request is successful
+*******************************************************************************/
+BOOLEAN SMP_Encrypt (UINT8 *key, UINT8 key_len,
+                     UINT8 *plain_text, UINT8 pt_len,
+                     tSMP_ENC *p_out)
+
+{
+    BOOLEAN status=FALSE;
+    status = smp_encrypt_data(key, key_len, plain_text, pt_len, p_out);
+    return status;
+}
+
+/*******************************************************************************
+**
+** Function         SMP_KeypressNotification
+**
+** Description      This function is called to notify Security Manager about Keypress Notification.
+**
+** Parameters:     bd_addr      Address of the device to send keypress notification to
+**                 value        Keypress notification parameter value
+**
+*******************************************************************************/
+void SMP_KeypressNotification (BD_ADDR bd_addr, UINT8 value)
+{
+    tSMP_CB   *p_cb = &smp_cb;
+
+    SMP_TRACE_EVENT ("%s: Value: %d", __FUNCTION__,value);
+
+    if (memcmp (bd_addr, p_cb->pairing_bda, BD_ADDR_LEN) != 0)
+    {
+        SMP_TRACE_ERROR ("%s() - Wrong BD Addr",__FUNCTION__);
+        return;
+    }
+
+    if (btm_find_dev (bd_addr) == NULL)
+    {
+        SMP_TRACE_ERROR ("%s() - no dev CB",__FUNCTION__);
+        return;
+    }
+
+    /* Keypress Notification is used by a device with KeyboardOnly IO capabilities */
+    /* during the passkey entry protocol */
+    if (p_cb->local_io_capability != SMP_IO_CAP_IN)
+    {
+        SMP_TRACE_ERROR ("%s() - wrong local IO capabilities %d",
+                          __FUNCTION__, p_cb->local_io_capability);
+        return;
+    }
+
+    if (p_cb->selected_association_model != SMP_MODEL_SEC_CONN_PASSKEY_ENT)
+    {
+        SMP_TRACE_ERROR ("%s() - wrong protocol %d", __FUNCTION__,
+                         p_cb->selected_association_model);
+        return;
+    }
+
+    smp_sm_event(p_cb, SMP_KEYPRESS_NOTIFICATION_EVENT, &value);
+}
+
+/*******************************************************************************
+**
+** Function         SMP_CreateLocalSecureConnectionsOobData
+**
+** Description      This function is called to start creation of local SC OOB
+**                  data set (tSMP_LOC_OOB_DATA).
+**
+** Parameters:      bd_addr      - Address of the device to send OOB data block to
+**
+**  Returns         Boolean - TRUE: creation of local SC OOB data set started.
+*******************************************************************************/
+BOOLEAN SMP_CreateLocalSecureConnectionsOobData (tBLE_BD_ADDR *addr_to_send_to)
+{
+    tSMP_CB *p_cb = &smp_cb;
+    UINT8   *bd_addr;
+
+    if (addr_to_send_to == NULL)
+    {
+        SMP_TRACE_ERROR ("%s addr_to_send_to is not provided",__FUNCTION__);
+        return FALSE;
+    }
+
+    bd_addr = addr_to_send_to->bda;
+
+    SMP_TRACE_EVENT ("%s addr type: %u,  BDA: %08x%04x,  state: %u, br_state: %u",
+                      __FUNCTION__, addr_to_send_to->type,
+                      (bd_addr[0]<<24)+(bd_addr[1]<<16)+(bd_addr[2]<<8) + bd_addr[3],
+                      (bd_addr[4]<<8)+bd_addr[5],
+                      p_cb->state,
+                      p_cb->br_state);
+
+    if ((p_cb->state != SMP_STATE_IDLE) || (p_cb->smp_over_br))
+    {
+        SMP_TRACE_WARNING ("%s creation of local OOB data set "\
+            "starts only in IDLE state",__FUNCTION__);
+        return FALSE;
+    }
+
+    p_cb->sc_oob_data.loc_oob_data.addr_sent_to = *addr_to_send_to;
+    smp_sm_event(p_cb, SMP_CR_LOC_SC_OOB_DATA_EVT, NULL);
+
+    return TRUE;
+}
+
+#endif /* SMP_INCLUDED */
diff --git a/rtkbt/code/bt/stack/smp/smp_br_main.c b/rtkbt/code/bt/stack/smp/smp_br_main.c
new file mode 100755
index 0000000..11039ec
--- /dev/null
+++ b/rtkbt/code/bt/stack/smp/smp_br_main.c
@@ -0,0 +1,399 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014-2015 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#include "bt_target.h"
+
+#include <string.h>
+#include "smp_int.h"
+
+#if BLE_INCLUDED == TRUE
+
+const char *const smp_br_state_name [SMP_BR_STATE_MAX+1] =
+{
+    "SMP_BR_STATE_IDLE",
+    "SMP_BR_STATE_WAIT_APP_RSP",
+    "SMP_BR_STATE_PAIR_REQ_RSP",
+    "SMP_BR_STATE_BOND_PENDING",
+    "SMP_BR_STATE_OUT_OF_RANGE"
+};
+
+const char *const smp_br_event_name [SMP_BR_MAX_EVT] =
+{
+    "BR_PAIRING_REQ_EVT",
+    "BR_PAIRING_RSP_EVT",
+    "BR_CONFIRM_EVT",
+    "BR_RAND_EVT",
+    "BR_PAIRING_FAILED_EVT",
+    "BR_ENCRPTION_INFO_EVT",
+    "BR_MASTER_ID_EVT",
+    "BR_ID_INFO_EVT",
+    "BR_ID_ADDR_EVT",
+    "BR_SIGN_INFO_EVT",
+    "BR_SECURITY_REQ_EVT",
+    "BR_PAIR_PUBLIC_KEY_EVT",
+    "BR_PAIR_DHKEY_CHCK_EVT",
+    "BR_PAIR_KEYPR_NOTIF_EVT",
+    "BR_KEY_READY_EVT",
+    "BR_ENCRYPTED_EVT",
+    "BR_L2CAP_CONN_EVT",
+    "BR_L2CAP_DISCONN_EVT",
+    "BR_KEYS_RSP_EVT",
+    "BR_API_SEC_GRANT_EVT",
+    "BR_TK_REQ_EVT",
+    "BR_AUTH_CMPL_EVT",
+    "BR_ENC_REQ_EVT",
+    "BR_BOND_REQ_EVT",
+    "BR_DISCARD_SEC_REQ_EVT",
+    "BR_OUT_OF_RANGE_EVT"
+};
+
+const char *smp_get_br_event_name(tSMP_BR_EVENT event);
+const char *smp_get_br_state_name(tSMP_BR_STATE state);
+
+#define SMP_BR_SM_IGNORE       0
+#define SMP_BR_NUM_ACTIONS     2
+#define SMP_BR_SME_NEXT_STATE  2
+#define SMP_BR_SM_NUM_COLS     3
+typedef const UINT8 (*tSMP_BR_SM_TBL)[SMP_BR_SM_NUM_COLS];
+
+enum
+{
+    SMP_SEND_PAIR_REQ,
+    SMP_BR_SEND_PAIR_RSP,
+    SMP_SEND_PAIR_FAIL,
+    SMP_SEND_ID_INFO,
+    SMP_BR_PROC_PAIR_CMD,
+    SMP_PROC_PAIR_FAIL,
+    SMP_PROC_ID_INFO,
+    SMP_PROC_ID_ADDR,
+    SMP_PROC_SRK_INFO,
+    SMP_BR_PROC_SEC_GRANT,
+    SMP_BR_PROC_SL_KEYS_RSP,
+    SMP_BR_KEY_DISTRIBUTION,
+    SMP_BR_PAIRING_COMPLETE,
+    SMP_SEND_APP_CBACK,
+    SMP_BR_CHECK_AUTH_REQ,
+    SMP_PAIR_TERMINATE,
+    SMP_IDLE_TERMINATE,
+    SMP_BR_SM_NO_ACTION
+};
+
+static const tSMP_ACT smp_br_sm_action[] =
+{
+    smp_send_pair_req,
+    smp_br_send_pair_response,
+    smp_send_pair_fail,
+    smp_send_id_info,
+    smp_br_process_pairing_command,
+    smp_proc_pair_fail,
+    smp_proc_id_info,
+    smp_proc_id_addr,
+    smp_proc_srk_info,
+    smp_br_process_security_grant,
+    smp_br_process_slave_keys_response,
+    smp_br_select_next_key,
+    smp_br_pairing_complete,
+    smp_send_app_cback,
+    smp_br_check_authorization_request,
+    smp_pair_terminate,
+    smp_idle_terminate
+};
+
+static const UINT8 smp_br_all_table[][SMP_BR_SM_NUM_COLS] =
+{
+/*                               Event                    Action           Next State */
+/* BR_PAIRING_FAILED        */  {SMP_PROC_PAIR_FAIL,  SMP_BR_PAIRING_COMPLETE, SMP_BR_STATE_IDLE},
+/* BR_AUTH_CMPL             */  {SMP_SEND_PAIR_FAIL,  SMP_BR_PAIRING_COMPLETE, SMP_BR_STATE_IDLE},
+/* BR_L2CAP_DISCONN         */  {SMP_PAIR_TERMINATE,  SMP_BR_SM_NO_ACTION, SMP_BR_STATE_IDLE}
+};
+
+/************ SMP Master FSM State/Event Indirection Table **************/
+static const UINT8 smp_br_master_entry_map[][SMP_BR_STATE_MAX] =
+{
+/* br_state name:               Idle      WaitApp  Pair    Bond
+                                          Rsp      ReqRsp  Pend       */
+/* BR_PAIRING_REQ           */  { 0,       0,       0,      0     },
+/* BR_PAIRING_RSP           */  { 0,       0,       1,      0     },
+/* BR_CONFIRM               */  { 0,       0,       0,      0     },
+/* BR_RAND                  */  { 0,       0,       0,      0     },
+/* BR_PAIRING_FAILED        */  { 0,       0x81,    0x81,   0     },
+/* BR_ENCRPTION_INFO        */  { 0,       0,       0,      0     },
+/* BR_MASTER_ID             */  { 0,       0,       0,      0     },
+/* BR_ID_INFO               */  { 0,       0,       0,      1     },
+/* BR_ID_ADDR               */  { 0,       0,       0,      2     },
+/* BR_SIGN_INFO             */  { 0,       0,       0,      3     },
+/* BR_SECURITY_REQ          */  { 0,       0,       0,      0     },
+/* BR_PAIR_PUBLIC_KEY_EVT   */  { 0,       0,       0,      0     },
+/* BR_PAIR_DHKEY_CHCK_EVT   */  { 0,       0,       0,      0     },
+/* BR_PAIR_KEYPR_NOTIF_EVT  */  { 0,       0,       0,      0     },
+/* BR_KEY_READY             */  { 0,       0,       0,      0     },
+/* BR_ENCRYPTED             */  { 0,       0,       0,      0     },
+/* BR_L2CAP_CONN            */  { 1,       0,       0,      0     },
+/* BR_L2CAP_DISCONN         */  { 2,       0x83,    0x83,   0x83  },
+/* BR_KEYS_RSP              */  { 0,       1,       0,      0     },
+/* BR_API_SEC_GRANT         */  { 0,       0,       0,      0     },
+/* BR_TK_REQ                */  { 0,       0,       0,      0     },
+/* BR_AUTH_CMPL             */  { 0,       0x82,    0x82,   0x82  },
+/* BR_ENC_REQ               */  { 0,       0,       0,      0     },
+/* BR_BOND_REQ              */  { 0,       0,       2,      0     },
+/* BR_DISCARD_SEC_REQ       */  { 0,       0,       0,      0     }
+};
+
+static const UINT8 smp_br_master_idle_table[][SMP_BR_SM_NUM_COLS] =
+{
+/*                                Event               Action               Next State */
+/* BR_L2CAP_CONN        */  {SMP_SEND_APP_CBACK, SMP_BR_SM_NO_ACTION, SMP_BR_STATE_WAIT_APP_RSP},
+/* BR_L2CAP_DISCONN   */  {SMP_IDLE_TERMINATE,  SMP_BR_SM_NO_ACTION, SMP_BR_STATE_IDLE}
+};
+
+static const UINT8 smp_br_master_wait_appln_response_table[][SMP_BR_SM_NUM_COLS] =
+{
+/*                                Event               Action              Next State */
+/* BR_KEYS_RSP           */{SMP_SEND_PAIR_REQ, SMP_BR_SM_NO_ACTION, SMP_BR_STATE_PAIR_REQ_RSP}
+};
+
+static const UINT8 smp_br_master_pair_request_response_table [][SMP_BR_SM_NUM_COLS] =
+{
+/*                        Event               Action                  Next State */
+/* BR_PAIRING_RSP   */  {SMP_BR_PROC_PAIR_CMD, SMP_BR_CHECK_AUTH_REQ, SMP_BR_STATE_PAIR_REQ_RSP},
+/* BR_BOND_REQ      */  {SMP_BR_SM_NO_ACTION, SMP_BR_SM_NO_ACTION, SMP_BR_STATE_BOND_PENDING}
+};
+
+static const UINT8 smp_br_master_bond_pending_table[][SMP_BR_SM_NUM_COLS] =
+{
+/*                                Event               Action              Next State */
+/* BR_ID_INFO               */{SMP_PROC_ID_INFO, SMP_BR_SM_NO_ACTION, SMP_BR_STATE_BOND_PENDING},
+/* BR_ID_ADDR               */{SMP_PROC_ID_ADDR, SMP_BR_SM_NO_ACTION, SMP_BR_STATE_BOND_PENDING},
+/* BR_SIGN_INFO             */{SMP_PROC_SRK_INFO, SMP_BR_SM_NO_ACTION, SMP_BR_STATE_BOND_PENDING}
+};
+
+static const UINT8 smp_br_slave_entry_map[][SMP_BR_STATE_MAX] =
+{
+/* br_state name:               Idle      WaitApp  Pair    Bond
+                                          Rsp      ReqRsp  Pend      */
+/* BR_PAIRING_REQ           */  { 1,       0,       0,      0    },
+/* BR_PAIRING_RSP           */  { 0,       0,       0,      0    },
+/* BR_CONFIRM               */  { 0,       0,       0,      0    },
+/* BR_RAND                  */  { 0,       0,       0,      0    },
+/* BR_PAIRING_FAILED        */  { 0,       0x81,    0x81,   0x81 },
+/* BR_ENCRPTION_INFO        */  { 0,       0,       0,      0    },
+/* BR_MASTER_ID             */  { 0,       0,       0,      0    },
+/* BR_ID_INFO               */  { 0,       0,       0,      1    },
+/* BR_ID_ADDR               */  { 0,       0,       0,      2    },
+/* BR_SIGN_INFO             */  { 0,       0,       0,      3    },
+/* BR_SECURITY_REQ          */  { 0,       0,       0,      0    },
+/* BR_PAIR_PUBLIC_KEY_EVT   */  { 0,       0,       0,      0    },
+/* BR_PAIR_DHKEY_CHCK_EVT   */  { 0,       0,       0,      0    },
+/* BR_PAIR_KEYPR_NOTIF_EVT  */  { 0,       0,       0,      0    },
+/* BR_KEY_READY             */  { 0,       0,       0,      0    },
+/* BR_ENCRYPTED             */  { 0,       0,       0,      0    },
+/* BR_L2CAP_CONN            */  { 0,       0,       0,      0    },
+/* BR_L2CAP_DISCONN         */  { 0,       0x83,    0x83,   0x83 },
+/* BR_KEYS_RSP              */  { 0,       2,       0,      0    },
+/* BR_API_SEC_GRANT         */  { 0,       1,       0,      0    },
+/* BR_TK_REQ                */  { 0,       0,       0,      0    },
+/* BR_AUTH_CMPL             */  { 0,       0x82,    0x82,   0x82 },
+/* BR_ENC_REQ               */  { 0,       0,       0,      0    },
+/* BR_BOND_REQ              */  { 0,       3,       0,      0    },
+/* BR_DISCARD_SEC_REQ       */  { 0,       0,       0,      0    }
+};
+
+static const UINT8 smp_br_slave_idle_table[][SMP_BR_SM_NUM_COLS] =
+{
+/*                               Event                Action              Next State */
+/* BR_PAIRING_REQ    */ {SMP_BR_PROC_PAIR_CMD, SMP_SEND_APP_CBACK, SMP_BR_STATE_WAIT_APP_RSP}
+};
+
+static const UINT8 smp_br_slave_wait_appln_response_table [][SMP_BR_SM_NUM_COLS] =
+{
+/*                               Event                 Action             Next State */
+/* BR_API_SEC_GRANT */ {SMP_BR_PROC_SEC_GRANT, SMP_SEND_APP_CBACK, SMP_BR_STATE_WAIT_APP_RSP},
+/* BR_KEYS_RSP     */{SMP_BR_PROC_SL_KEYS_RSP, SMP_BR_CHECK_AUTH_REQ,SMP_BR_STATE_WAIT_APP_RSP},
+/* BR_BOND_REQ        */ {SMP_BR_KEY_DISTRIBUTION, SMP_BR_SM_NO_ACTION, SMP_BR_STATE_BOND_PENDING}
+};
+
+static const UINT8 smp_br_slave_bond_pending_table[][SMP_BR_SM_NUM_COLS] =
+{
+/*                                Event               Action               Next State */
+/* BR_ID_INFO               */  {SMP_PROC_ID_INFO, SMP_BR_SM_NO_ACTION, SMP_BR_STATE_BOND_PENDING},
+/* BR_ID_ADDR               */  {SMP_PROC_ID_ADDR, SMP_BR_SM_NO_ACTION, SMP_BR_STATE_BOND_PENDING},
+/* BR_SIGN_INFO             */  {SMP_PROC_SRK_INFO, SMP_BR_SM_NO_ACTION, SMP_BR_STATE_BOND_PENDING}
+};
+
+static const tSMP_BR_SM_TBL smp_br_state_table[][2] =
+{
+    /* SMP_BR_STATE_IDLE */
+    {smp_br_master_idle_table, smp_br_slave_idle_table},
+
+    /* SMP_BR_STATE_WAIT_APP_RSP */
+    {smp_br_master_wait_appln_response_table, smp_br_slave_wait_appln_response_table},
+
+    /* SMP_BR_STATE_PAIR_REQ_RSP */
+    {smp_br_master_pair_request_response_table, NULL},
+
+    /* SMP_BR_STATE_BOND_PENDING */
+    {smp_br_master_bond_pending_table, smp_br_slave_bond_pending_table},
+};
+
+typedef const UINT8 (*tSMP_BR_ENTRY_TBL)[SMP_BR_STATE_MAX];
+
+static const tSMP_BR_ENTRY_TBL smp_br_entry_table[] =
+{
+    smp_br_master_entry_map,
+    smp_br_slave_entry_map
+};
+
+#define SMP_BR_ALL_TABLE_MASK  0x80
+
+/*******************************************************************************
+** Function     smp_set_br_state
+** Returns      None
+*******************************************************************************/
+void smp_set_br_state(tSMP_BR_STATE br_state)
+{
+    if (br_state < SMP_BR_STATE_MAX)
+    {
+        SMP_TRACE_DEBUG( "BR_State change: %s(%d) ==> %s(%d)",
+                          smp_get_br_state_name(smp_cb.br_state), smp_cb.br_state,
+                          smp_get_br_state_name(br_state), br_state );
+        smp_cb.br_state = br_state;
+    }
+    else
+    {
+        SMP_TRACE_DEBUG("%s invalid br_state =%d", __FUNCTION__,br_state );
+    }
+}
+
+/*******************************************************************************
+** Function     smp_get_br_state
+** Returns      The smp_br state
+*******************************************************************************/
+tSMP_BR_STATE smp_get_br_state(void)
+{
+    return smp_cb.br_state;
+}
+
+/*******************************************************************************
+** Function     smp_get_br_state_name
+** Returns      The smp_br state name.
+*******************************************************************************/
+const char *smp_get_br_state_name(tSMP_BR_STATE br_state)
+{
+    const char *p_str = smp_br_state_name[SMP_BR_STATE_MAX];
+
+    if (br_state < SMP_BR_STATE_MAX)
+        p_str = smp_br_state_name[br_state];
+
+    return p_str;
+}
+/*******************************************************************************
+** Function     smp_get_br_event_name
+** Returns      The smp_br event name.
+*******************************************************************************/
+const char * smp_get_br_event_name(tSMP_BR_EVENT event)
+{
+    const char * p_str = smp_br_event_name[SMP_BR_MAX_EVT - 1];
+
+    if (event < SMP_BR_MAX_EVT)
+    {
+        p_str = smp_br_event_name[event- 1];
+    }
+    return p_str;
+}
+
+/*******************************************************************************
+**
+** Function     smp_br_state_machine_event
+**
+** Description  Handle events to the state machine. It looks up the entry
+**              in the smp_br_entry_table array.
+**              If it is a valid entry, it gets the state table.Set the next state,
+**              if not NULL state. Execute the action function according to the
+**              state table. If the state returned by action function is not NULL
+**              state, adjust the new state to the returned state.
+**
+** Returns      void.
+**
+*******************************************************************************/
+void smp_br_state_machine_event(tSMP_CB *p_cb, tSMP_BR_EVENT event, void *p_data)
+{
+    tSMP_BR_STATE       curr_state = p_cb->br_state;
+    tSMP_BR_SM_TBL      state_table;
+    UINT8               action, entry;
+    tSMP_BR_ENTRY_TBL   entry_table =  smp_br_entry_table[p_cb->role];
+
+    SMP_TRACE_EVENT("main %s", __func__);
+    if (curr_state >= SMP_BR_STATE_MAX)
+    {
+        SMP_TRACE_DEBUG( "Invalid br_state: %d", curr_state) ;
+        return;
+    }
+
+    SMP_TRACE_DEBUG( "SMP Role: %s State: [%s (%d)], Event: [%s (%d)]",
+                      (p_cb->role == HCI_ROLE_SLAVE) ? "Slave" : "Master",
+                      smp_get_br_state_name( p_cb->br_state),
+                      p_cb->br_state, smp_get_br_event_name(event), event) ;
+
+    /* look up the state table for the current state */
+    /* lookup entry / w event & curr_state */
+    /* If entry is ignore, return.
+     * Otherwise, get state table (according to curr_state or all_state) */
+    if ((event <= SMP_BR_MAX_EVT) && ( (entry = entry_table[event - 1][curr_state])
+        != SMP_BR_SM_IGNORE ))
+    {
+        if (entry & SMP_BR_ALL_TABLE_MASK)
+        {
+            entry &= ~SMP_BR_ALL_TABLE_MASK;
+            state_table = smp_br_all_table;
+        }
+        else
+        {
+            state_table = smp_br_state_table[curr_state][p_cb->role];
+        }
+    }
+    else
+    {
+        SMP_TRACE_DEBUG( "Ignore event [%s (%d)] in state [%s (%d)]",
+                          smp_get_br_event_name(event), event,
+                          smp_get_br_state_name(curr_state), curr_state);
+        return;
+    }
+
+    /* Get possible next state from state table. */
+
+    smp_set_br_state(state_table[entry - 1][SMP_BR_SME_NEXT_STATE]);
+
+    /* If action is not ignore, clear param, exec action and get next state.
+     * The action function may set the Param for cback.
+     * Depending on param, call cback or free buffer. */
+    /* execute action functions */
+    for (UINT8 i = 0; i < SMP_BR_NUM_ACTIONS; i++)
+    {
+        if ((action = state_table[entry - 1][i]) != SMP_BR_SM_NO_ACTION)
+        {
+            (*smp_br_sm_action[action])(p_cb, (tSMP_INT_DATA *)p_data);
+        }
+        else
+        {
+            break;
+        }
+    }
+    SMP_TRACE_DEBUG( "result state = %s", smp_get_br_state_name( p_cb->br_state ) ) ;
+}
+
+#endif
diff --git a/rtkbt/code/bt/stack/smp/smp_cmac.c b/rtkbt/code/bt/stack/smp/smp_cmac.c
new file mode 100755
index 0000000..b164669
--- /dev/null
+++ b/rtkbt/code/bt/stack/smp/smp_cmac.c
@@ -0,0 +1,374 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2008-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains the implementation of the AES128 CMAC algorithm.
+ *
+ ******************************************************************************/
+
+#include "bt_target.h"
+
+#if SMP_INCLUDED == TRUE
+    #include <stdio.h>
+    #include <string.h>
+
+    #include "btm_ble_api.h"
+    #include "smp_int.h"
+    #include "hcimsgs.h"
+
+typedef struct
+{
+    UINT8               *text;
+    UINT16              len;
+    UINT16              round;
+}tCMAC_CB;
+
+tCMAC_CB    cmac_cb;
+
+/* Rb for AES-128 as block cipher, LSB as [0] */
+BT_OCTET16 const_Rb = {
+    0x87, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+};
+
+void print128(BT_OCTET16 x, const UINT8 *key_name)
+{
+#if SMP_DEBUG == TRUE && SMP_DEBUG_VERBOSE == TRUE
+    UINT8  *p = (UINT8 *)x;
+    UINT8  i;
+
+    SMP_TRACE_WARNING("%s(MSB ~ LSB) = ", key_name);
+
+    for (i = 0; i < 4; i ++)
+    {
+        SMP_TRACE_WARNING("%02x %02x %02x %02x",
+                           p[BT_OCTET16_LEN - i*4 -1], p[BT_OCTET16_LEN - i*4 -2],
+                           p[BT_OCTET16_LEN - i*4 -3], p[BT_OCTET16_LEN - i*4 -4]);
+    }
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         padding
+**
+** Description      utility function to padding the given text to be a 128 bits
+**                  data. The parameter dest is input and output parameter, it
+**                  must point to a BT_OCTET16_LEN memory space; where include
+**                  length bytes valid data.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void padding ( BT_OCTET16 dest, UINT8 length )
+{
+    UINT8   i, *p = dest;
+    /* original last block */
+    for ( i = length ; i < BT_OCTET16_LEN; i++ )
+        p[BT_OCTET16_LEN - i - 1] = ( i == length ) ? 0x80 : 0;
+}
+/*******************************************************************************
+**
+** Function         leftshift_onebit
+**
+** Description      utility function to left shift one bit for a 128 bits value.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void leftshift_onebit(UINT8 *input, UINT8 *output)
+{
+    UINT8   i, overflow = 0 , next_overflow = 0;
+    SMP_TRACE_EVENT ("leftshift_onebit ");
+    /* input[0] is LSB */
+    for ( i = 0; i < BT_OCTET16_LEN ; i ++ )
+    {
+        next_overflow = (input[i] & 0x80) ? 1:0;
+        output[i] = (input[i] << 1) | overflow;
+        overflow = next_overflow;
+    }
+    return;
+}
+/*******************************************************************************
+**
+** Function         cmac_aes_cleanup
+**
+** Description      clean up function for AES_CMAC algorithm.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void cmac_aes_cleanup(void)
+{
+    osi_free(cmac_cb.text);
+    memset(&cmac_cb, 0, sizeof(tCMAC_CB));
+}
+
+/*******************************************************************************
+**
+** Function         cmac_aes_k_calculate
+**
+** Description      This function is the calculation of block cipher using AES-128.
+**
+** Returns          void
+**
+*******************************************************************************/
+static BOOLEAN cmac_aes_k_calculate(BT_OCTET16 key, UINT8 *p_signature, UINT16 tlen)
+{
+    tSMP_ENC output;
+    UINT8    i = 1, err = 0;
+    UINT8    x[16] = {0};
+    UINT8   *p_mac;
+
+    SMP_TRACE_EVENT ("cmac_aes_k_calculate ");
+
+    while (i <= cmac_cb.round)
+    {
+        smp_xor_128(&cmac_cb.text[(cmac_cb.round - i)*BT_OCTET16_LEN], x); /* Mi' := Mi (+) X  */
+
+        if (!SMP_Encrypt(key, BT_OCTET16_LEN, &cmac_cb.text[(cmac_cb.round - i)*BT_OCTET16_LEN], BT_OCTET16_LEN, &output))
+        {
+            err = 1;
+            break;
+        }
+
+        memcpy(x, output.param_buf, BT_OCTET16_LEN);
+        i ++;
+    }
+
+    if (!err)
+    {
+        p_mac = output.param_buf + (BT_OCTET16_LEN - tlen);
+        memcpy(p_signature, p_mac, tlen);
+
+        SMP_TRACE_DEBUG("tlen = %d p_mac = %d", tlen, p_mac);
+        SMP_TRACE_DEBUG("p_mac[0] = 0x%02x p_mac[1] = 0x%02x p_mac[2] = 0x%02x p_mac[3] = 0x%02x",
+                         *p_mac, *(p_mac + 1), *(p_mac + 2), *(p_mac + 3));
+        SMP_TRACE_DEBUG("p_mac[4] = 0x%02x p_mac[5] = 0x%02x p_mac[6] = 0x%02x p_mac[7] = 0x%02x",
+                         *(p_mac + 4), *(p_mac + 5), *(p_mac + 6), *(p_mac + 7));
+
+        return TRUE;
+
+    }
+    else
+        return FALSE;
+}
+/*******************************************************************************
+**
+** Function         cmac_prepare_last_block
+**
+** Description      This function proceeed to prepare the last block of message
+**                  Mn depending on the size of the message.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void cmac_prepare_last_block (BT_OCTET16 k1, BT_OCTET16 k2)
+{
+//    UINT8       x[16] = {0};
+    BOOLEAN      flag;
+
+    SMP_TRACE_EVENT ("cmac_prepare_last_block ");
+    /* last block is a complete block set flag to 1 */
+    flag = ((cmac_cb.len % BT_OCTET16_LEN) == 0 && cmac_cb.len != 0)  ? TRUE : FALSE;
+
+    SMP_TRACE_WARNING("flag = %d round = %d", flag, cmac_cb.round);
+
+    if ( flag )
+    { /* last block is complete block */
+        smp_xor_128(&cmac_cb.text[0], k1);
+    }
+    else /* padding then xor with k2 */
+    {
+        padding(&cmac_cb.text[0], (UINT8)(cmac_cb.len % 16));
+
+        smp_xor_128(&cmac_cb.text[0], k2);
+    }
+}
+/*******************************************************************************
+**
+** Function         cmac_subkey_cont
+**
+** Description      This is the callback function when CIPHk(0[128]) is completed.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void cmac_subkey_cont(tSMP_ENC *p)
+{
+    UINT8 k1[BT_OCTET16_LEN], k2[BT_OCTET16_LEN];
+    UINT8 *pp = p->param_buf;
+    SMP_TRACE_EVENT ("cmac_subkey_cont ");
+    print128(pp, (const UINT8 *)"K1 before shift");
+
+    /* If MSB(L) = 0, then K1 = L << 1 */
+    if ( (pp[BT_OCTET16_LEN - 1] & 0x80) != 0 )
+    {
+        /* Else K1 = ( L << 1 ) (+) Rb */
+        leftshift_onebit(pp, k1);
+        smp_xor_128(k1, const_Rb);
+    }
+    else
+    {
+        leftshift_onebit(pp, k1);
+    }
+
+    if ( (k1[BT_OCTET16_LEN - 1] & 0x80) != 0 )
+    {
+        /* K2 =  (K1 << 1) (+) Rb */
+        leftshift_onebit(k1, k2);
+        smp_xor_128(k2, const_Rb);
+    }
+    else
+    {
+        /* If MSB(K1) = 0, then K2 = K1 << 1 */
+        leftshift_onebit(k1, k2);
+    }
+
+    print128(k1, (const UINT8 *)"K1");
+    print128(k2, (const UINT8 *)"K2");
+
+    cmac_prepare_last_block (k1, k2);
+}
+/*******************************************************************************
+**
+** Function         cmac_generate_subkey
+**
+** Description      This is the function to generate the two subkeys.
+**
+** Parameters       key - CMAC key, expect SRK when used by SMP.
+**
+** Returns          void
+**
+*******************************************************************************/
+static BOOLEAN cmac_generate_subkey(BT_OCTET16 key)
+{
+    BT_OCTET16 z = {0};
+    BOOLEAN     ret = TRUE;
+    tSMP_ENC output;
+    SMP_TRACE_EVENT (" cmac_generate_subkey");
+
+    if (SMP_Encrypt(key, BT_OCTET16_LEN, z, BT_OCTET16_LEN, &output))
+    {
+        cmac_subkey_cont(&output);;
+    }
+    else
+        ret = FALSE;
+
+    return ret;
+}
+/*******************************************************************************
+**
+** Function         aes_cipher_msg_auth_code
+**
+** Description      This is the AES-CMAC Generation Function with tlen implemented.
+**
+** Parameters       key - CMAC key in little endian order, expect SRK when used by SMP.
+**                  input - text to be signed in little endian byte order.
+**                  length - length of the input in byte.
+**                  tlen - lenth of mac desired
+**                  p_signature - data pointer to where signed data to be stored, tlen long.
+**
+** Returns          FALSE if out of resources, TRUE in other cases.
+**
+*******************************************************************************/
+BOOLEAN aes_cipher_msg_auth_code(BT_OCTET16 key, UINT8 *input, UINT16 length,
+                                 UINT16 tlen, UINT8 *p_signature)
+{
+    UINT16  len, diff;
+    UINT16  n = (length + BT_OCTET16_LEN - 1) / BT_OCTET16_LEN;       /* n is number of rounds */
+    BOOLEAN ret = FALSE;
+
+    SMP_TRACE_EVENT ("%s", __func__);
+
+    if (n == 0)  n = 1;
+    len = n * BT_OCTET16_LEN;
+
+    SMP_TRACE_WARNING("AES128_CMAC started, allocate buffer size = %d", len);
+    /* allocate a memory space of multiple of 16 bytes to hold text  */
+    cmac_cb.text = (UINT8 *)osi_calloc(len);
+    cmac_cb.round = n;
+    diff = len - length;
+
+    if (input != NULL && length > 0) {
+        memcpy(&cmac_cb.text[diff] , input, (int)length);
+        cmac_cb.len = length;
+    } else {
+        cmac_cb.len = 0;
+    }
+
+    /* prepare calculation for subkey s and last block of data */
+    if (cmac_generate_subkey(key)) {
+        /* start calculation */
+        ret = cmac_aes_k_calculate(key, p_signature, tlen);
+    }
+    /* clean up */
+    cmac_aes_cleanup();
+
+    return ret;
+}
+
+    #if 0 /* testing code, sample data from spec */
+void test_cmac_cback(UINT8 *p_mac, UINT16 tlen)
+{
+    SMP_TRACE_EVENT ("test_cmac_cback ");
+    SMP_TRACE_ERROR("test_cmac_cback");
+}
+
+void test_cmac(void)
+{
+    SMP_TRACE_EVENT ("test_cmac ");
+    UINT8 M[64] = {
+        0x6b, 0xc1, 0xbe, 0xe2, 0x2e, 0x40, 0x9f, 0x96,
+        0xe9, 0x3d, 0x7e, 0x11, 0x73, 0x93, 0x17, 0x2a,
+        0xae, 0x2d, 0x8a, 0x57, 0x1e, 0x03, 0xac, 0x9c,
+        0x9e, 0xb7, 0x6f, 0xac, 0x45, 0xaf, 0x8e, 0x51,
+        0x30, 0xc8, 0x1c, 0x46, 0xa3, 0x5c, 0xe4, 0x11,
+        0xe5, 0xfb, 0xc1, 0x19, 0x1a, 0x0a, 0x52, 0xef,
+        0xf6, 0x9f, 0x24, 0x45, 0xdf, 0x4f, 0x9b, 0x17,
+        0xad, 0x2b, 0x41, 0x7b, 0xe6, 0x6c, 0x37, 0x10
+    };
+
+    UINT8 key[16] = {
+        0x3c, 0x4f, 0xcf, 0x09, 0x88, 0x15, 0xf7, 0xab,
+        0xa6, 0xd2, 0xae, 0x28, 0x16, 0x15, 0x7e, 0x2b
+    };
+    UINT8 i =0, tmp;
+    UINT16 len;
+
+    len = 64;
+
+    for (i = 0; i < len/2; i ++)
+    {
+        tmp = M[i];
+        M[i] = M[len -1 - i];
+        M[len -1 - i] = tmp;
+    }
+
+
+    memset(&cmac_cb, 0, sizeof(tCMAC_CB));
+
+    SMP_TRACE_WARNING("\n Example 1: len = %d\n", len);
+
+    aes_cipher_msg_auth_code(key, M, len, 128, test_cmac_cback, 0);
+
+}
+    #endif
+#endif
+
diff --git a/rtkbt/code/bt/stack/smp/smp_int.h b/rtkbt/code/bt/stack/smp/smp_int.h
new file mode 100755
index 0000000..fbb4289
--- /dev/null
+++ b/rtkbt/code/bt/stack/smp/smp_int.h
@@ -0,0 +1,544 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains internally used SMP definitions
+ *
+ ******************************************************************************/
+#ifndef  SMP_INT_H
+#define  SMP_INT_H
+
+#if BLE_INCLUDED == TRUE
+
+#include "btu.h"
+#include "btm_ble_api.h"
+#include "btm_api.h"
+#include "smp_api.h"
+
+#define SMP_MODEL_ENCRYPTION_ONLY  0   /* Legacy mode, Just Works model */
+#define SMP_MODEL_PASSKEY       1   /* Legacy mode, Passkey Entry model, this side inputs the key */
+#define SMP_MODEL_OOB           2   /* Legacy mode, OOB model */
+#define SMP_MODEL_KEY_NOTIF     3   /* Legacy mode, Passkey Entry model, this side displays the key */
+#define SMP_MODEL_SEC_CONN_JUSTWORKS  4  /* Secure Connections mode, Just Works model */
+#define SMP_MODEL_SEC_CONN_NUM_COMP   5  /* Secure Connections mode, Numeric Comparison model */
+#define SMP_MODEL_SEC_CONN_PASSKEY_ENT 6 /* Secure Connections mode, Passkey Entry model, */
+                                    /* this side inputs the key */
+#define SMP_MODEL_SEC_CONN_PASSKEY_DISP 7   /* Secure Connections mode, Passkey Entry model, */
+                                    /* this side displays the key */
+#define SMP_MODEL_SEC_CONN_OOB  8   /* Secure Connections mode, OOB model */
+#define SMP_MODEL_OUT_OF_RANGE  9
+typedef UINT8   tSMP_ASSO_MODEL;
+
+
+#ifndef SMP_MAX_CONN
+    #define SMP_MAX_CONN    2
+#endif
+
+#define SMP_WAIT_FOR_RSP_TIMEOUT_MS      (30 * 1000)
+
+#define SMP_OPCODE_INIT                   0x04
+
+/* SMP events */
+#define SMP_PAIRING_REQ_EVT             SMP_OPCODE_PAIRING_REQ
+#define SMP_PAIRING_RSP_EVT             SMP_OPCODE_PAIRING_RSP
+#define SMP_CONFIRM_EVT                 SMP_OPCODE_CONFIRM
+#define SMP_RAND_EVT                    SMP_OPCODE_RAND
+#define SMP_PAIRING_FAILED_EVT          SMP_OPCODE_PAIRING_FAILED
+#define SMP_ENCRPTION_INFO_EVT          SMP_OPCODE_ENCRYPT_INFO
+#define SMP_MASTER_ID_EVT               SMP_OPCODE_MASTER_ID
+#define SMP_ID_INFO_EVT                 SMP_OPCODE_IDENTITY_INFO
+#define SMP_ID_ADDR_EVT                 SMP_OPCODE_ID_ADDR
+#define SMP_SIGN_INFO_EVT               SMP_OPCODE_SIGN_INFO
+#define SMP_SECURITY_REQ_EVT            SMP_OPCODE_SEC_REQ
+
+#define SMP_PAIR_PUBLIC_KEY_EVT         SMP_OPCODE_PAIR_PUBLIC_KEY
+#define SMP_PAIR_KEYPRESS_NOTIFICATION_EVT SMP_OPCODE_PAIR_KEYPR_NOTIF
+
+#define SMP_PAIR_COMMITM_EVT            SMP_OPCODE_PAIR_COMMITM
+
+#define SMP_SELF_DEF_EVT                (SMP_PAIR_COMMITM_EVT + 1)
+#define SMP_KEY_READY_EVT               (SMP_SELF_DEF_EVT)
+#define SMP_ENCRYPTED_EVT               (SMP_SELF_DEF_EVT + 1)
+#define SMP_L2CAP_CONN_EVT              (SMP_SELF_DEF_EVT + 2)
+#define SMP_L2CAP_DISCONN_EVT           (SMP_SELF_DEF_EVT + 3)
+#define SMP_IO_RSP_EVT                  (SMP_SELF_DEF_EVT + 4)
+#define SMP_API_SEC_GRANT_EVT           (SMP_SELF_DEF_EVT + 5)
+#define SMP_TK_REQ_EVT                  (SMP_SELF_DEF_EVT + 6)
+#define SMP_AUTH_CMPL_EVT               (SMP_SELF_DEF_EVT + 7)
+#define SMP_ENC_REQ_EVT                 (SMP_SELF_DEF_EVT + 8)
+#define SMP_BOND_REQ_EVT                (SMP_SELF_DEF_EVT + 9)
+#define SMP_DISCARD_SEC_REQ_EVT         (SMP_SELF_DEF_EVT + 10)
+
+#define SMP_PAIR_DHKEY_CHCK_EVT         SMP_OPCODE_PAIR_DHKEY_CHECK
+
+#define SMP_PUBL_KEY_EXCH_REQ_EVT       (SMP_SELF_DEF_EVT + 11) /* request to start public */
+                                                                /* key exchange */
+
+#define SMP_LOC_PUBL_KEY_CRTD_EVT       (SMP_SELF_DEF_EVT + 12) /* local public key created */
+
+#define SMP_BOTH_PUBL_KEYS_RCVD_EVT     (SMP_SELF_DEF_EVT + 13) /* both local and peer public */
+                                                                /* keys are saved in cb */
+
+#define SMP_SC_DHKEY_CMPLT_EVT          (SMP_SELF_DEF_EVT + 14) /* DHKey computation is completed,*/
+                                                                /* time to start SC phase1 */
+
+#define SMP_HAVE_LOC_NONCE_EVT          (SMP_SELF_DEF_EVT + 15) /* new local nonce is generated */
+                                                                /*and saved in p_cb->rand */
+
+#define SMP_SC_PHASE1_CMPLT_EVT         (SMP_SELF_DEF_EVT + 16) /* time to start SC phase2 */
+
+#define SMP_SC_CALC_NC_EVT              (SMP_SELF_DEF_EVT + 17) /* request to calculate number */
+                                                             /* for user check. Used only in the */
+                                                             /* numeric compare protocol */
+
+/* Request to display the number for user check to the user.*/
+/* Used only in the numeric compare protocol */
+#define SMP_SC_DSPL_NC_EVT              (SMP_SELF_DEF_EVT + 18)
+
+#define SMP_SC_NC_OK_EVT                (SMP_SELF_DEF_EVT + 19) /* user confirms 'OK' numeric */
+                                                                /*comparison request */
+
+/* both local and peer DHKey Checks are already present - it is used on slave to prevent race condition */
+#define SMP_SC_2_DHCK_CHKS_PRES_EVT     (SMP_SELF_DEF_EVT + 20)
+
+/* same meaning as SMP_KEY_READY_EVT to separate between SC and legacy actions */
+#define SMP_SC_KEY_READY_EVT            (SMP_SELF_DEF_EVT + 21)
+#define SMP_KEYPRESS_NOTIFICATION_EVENT (SMP_SELF_DEF_EVT + 22)
+
+#define SMP_SC_OOB_DATA_EVT             (SMP_SELF_DEF_EVT + 23) /* SC OOB data from some */
+                                                                /* repository is provided */
+
+#define SMP_CR_LOC_SC_OOB_DATA_EVT      (SMP_SELF_DEF_EVT + 24)
+#define SMP_MAX_EVT                      SMP_CR_LOC_SC_OOB_DATA_EVT
+
+typedef UINT8 tSMP_EVENT;
+
+/* Assumption it's only using the low 8 bits, if bigger than that, need to expand it to 16 bits */
+#define SMP_SEC_KEY_MASK                    0x00ff
+
+/* SMP pairing state */
+enum
+{
+    SMP_STATE_IDLE,
+    SMP_STATE_WAIT_APP_RSP,
+    SMP_STATE_SEC_REQ_PENDING,
+    SMP_STATE_PAIR_REQ_RSP,
+    SMP_STATE_WAIT_CONFIRM,
+    SMP_STATE_CONFIRM,
+    SMP_STATE_RAND,
+    SMP_STATE_PUBLIC_KEY_EXCH,
+    SMP_STATE_SEC_CONN_PHS1_START,
+    SMP_STATE_WAIT_COMMITMENT,
+    SMP_STATE_WAIT_NONCE,
+    SMP_STATE_SEC_CONN_PHS2_START,
+    SMP_STATE_WAIT_DHK_CHECK,
+    SMP_STATE_DHK_CHECK,
+    SMP_STATE_ENCRYPTION_PENDING,
+    SMP_STATE_BOND_PENDING,
+    SMP_STATE_CREATE_LOCAL_SEC_CONN_OOB_DATA,
+    SMP_STATE_MAX
+};
+typedef UINT8 tSMP_STATE;
+
+/* SMP over BR/EDR events */
+#define SMP_BR_PAIRING_REQ_EVT              SMP_OPCODE_PAIRING_REQ
+#define SMP_BR_PAIRING_RSP_EVT              SMP_OPCODE_PAIRING_RSP
+#define SMP_BR_CONFIRM_EVT                  SMP_OPCODE_CONFIRM    /* not expected over BR/EDR */
+#define SMP_BR_RAND_EVT                     SMP_OPCODE_RAND       /* not expected over BR/EDR */
+#define SMP_BR_PAIRING_FAILED_EVT           SMP_OPCODE_PAIRING_FAILED
+#define SMP_BR_ENCRPTION_INFO_EVT           SMP_OPCODE_ENCRYPT_INFO /* not expected over BR/EDR */
+#define SMP_BR_MASTER_ID_EVT                SMP_OPCODE_MASTER_ID    /* not expected over BR/EDR */
+#define SMP_BR_ID_INFO_EVT                  SMP_OPCODE_IDENTITY_INFO
+#define SMP_BR_ID_ADDR_EVT                  SMP_OPCODE_ID_ADDR
+#define SMP_BR_SIGN_INFO_EVT                SMP_OPCODE_SIGN_INFO
+#define SMP_BR_SECURITY_REQ_EVT          SMP_OPCODE_SEC_REQ          /* not expected over BR/EDR */
+#define SMP_BR_PAIR_PUBLIC_KEY_EVT       SMP_OPCODE_PAIR_PUBLIC_KEY  /* not expected over BR/EDR */
+#define SMP_BR_PAIR_DHKEY_CHCK_EVT       SMP_OPCODE_PAIR_DHKEY_CHECK /* not expected over BR/EDR */
+#define SMP_BR_PAIR_KEYPR_NOTIF_EVT      SMP_OPCODE_PAIR_KEYPR_NOTIF /* not expected over BR/EDR */
+#define SMP_BR_SELF_DEF_EVT              SMP_BR_PAIR_KEYPR_NOTIF_EVT
+#define SMP_BR_KEY_READY_EVT                (SMP_BR_SELF_DEF_EVT + 1)
+#define SMP_BR_ENCRYPTED_EVT                (SMP_BR_SELF_DEF_EVT + 2)
+#define SMP_BR_L2CAP_CONN_EVT               (SMP_BR_SELF_DEF_EVT + 3)
+#define SMP_BR_L2CAP_DISCONN_EVT            (SMP_BR_SELF_DEF_EVT + 4)
+#define SMP_BR_KEYS_RSP_EVT                 (SMP_BR_SELF_DEF_EVT + 5)
+#define SMP_BR_API_SEC_GRANT_EVT            (SMP_BR_SELF_DEF_EVT + 6)
+#define SMP_BR_TK_REQ_EVT                   (SMP_BR_SELF_DEF_EVT + 7)
+#define SMP_BR_AUTH_CMPL_EVT                (SMP_BR_SELF_DEF_EVT + 8)
+#define SMP_BR_ENC_REQ_EVT                  (SMP_BR_SELF_DEF_EVT + 9)
+#define SMP_BR_BOND_REQ_EVT                 (SMP_BR_SELF_DEF_EVT + 10)
+#define SMP_BR_DISCARD_SEC_REQ_EVT          (SMP_BR_SELF_DEF_EVT + 11)
+#define SMP_BR_MAX_EVT                      (SMP_BR_SELF_DEF_EVT + 12)
+typedef UINT8 tSMP_BR_EVENT;
+
+/* SMP over BR/EDR pairing states */
+enum
+{
+    SMP_BR_STATE_IDLE = SMP_STATE_IDLE,
+    SMP_BR_STATE_WAIT_APP_RSP,
+    SMP_BR_STATE_PAIR_REQ_RSP,
+    SMP_BR_STATE_BOND_PENDING,
+    SMP_BR_STATE_MAX
+};
+typedef UINT8 tSMP_BR_STATE;
+
+/* random and encrption activity state */
+enum
+{
+    SMP_GEN_COMPARE = 1,
+    SMP_GEN_CONFIRM,
+
+    SMP_GEN_DIV_LTK,
+    SMP_GEN_DIV_CSRK,
+    SMP_GEN_RAND_V,
+    SMP_GEN_TK,
+    SMP_GEN_SRAND_MRAND,
+    SMP_GEN_SRAND_MRAND_CONT,
+    SMP_GENERATE_PRIVATE_KEY_0_7,
+    SMP_GENERATE_PRIVATE_KEY_8_15,
+    SMP_GENERATE_PRIVATE_KEY_16_23,
+    SMP_GENERATE_PRIVATE_KEY_24_31,
+    SMP_GEN_NONCE_0_7,
+    SMP_GEN_NONCE_8_15
+};
+
+enum
+{
+    SMP_KEY_TYPE_TK,
+    SMP_KEY_TYPE_CFM,
+    SMP_KEY_TYPE_CMP,
+    SMP_KEY_TYPE_PEER_DHK_CHCK,
+    SMP_KEY_TYPE_STK,
+    SMP_KEY_TYPE_LTK
+};
+typedef struct
+{
+    UINT8   key_type;
+    UINT8*  p_data;
+}tSMP_KEY;
+
+typedef union
+{
+    UINT8       *p_data;    /* UINT8 type data pointer */
+    tSMP_KEY    key;
+    UINT16      reason;
+    UINT32      passkey;
+    tSMP_OOB_DATA_TYPE  req_oob_type;
+}tSMP_INT_DATA;
+
+/* internal status mask */
+#define SMP_PAIR_FLAGS_WE_STARTED_DD           (1)
+#define SMP_PAIR_FLAGS_PEER_STARTED_DD         (1 << 1)
+#define SMP_PAIR_FLAGS_CMD_CONFIRM             (1 << SMP_OPCODE_CONFIRM) /* 1 << 3 */
+#define SMP_PAIR_FLAG_ENC_AFTER_PAIR           (1 << 4)
+#define SMP_PAIR_FLAG_HAVE_PEER_DHK_CHK   (1 << 5) /* used on slave to resolve race condition */
+#define SMP_PAIR_FLAG_HAVE_PEER_PUBL_KEY  (1 << 6) /* used on slave to resolve race condition */
+#define SMP_PAIR_FLAG_HAVE_PEER_COMM      (1 << 7) /* used to resolve race condition */
+#define SMP_PAIR_FLAG_HAVE_LOCAL_PUBL_KEY (1 << 8) /* used on slave to resolve race condition */
+
+/* check if authentication requirement need MITM protection */
+#define SMP_NO_MITM_REQUIRED(x)  (((x) & SMP_AUTH_YN_BIT) == 0)
+
+#define SMP_ENCRYT_KEY_SIZE                16
+#define SMP_ENCRYT_DATA_SIZE               16
+#define SMP_ECNCRPYT_STATUS                HCI_SUCCESS
+
+typedef struct
+{
+    BD_ADDR bd_addr;
+    BT_HDR* p_copy;
+} tSMP_REQ_Q_ENTRY;
+
+/* SMP control block */
+typedef struct
+{
+    tSMP_CALLBACK   *p_callback;
+    alarm_t         *smp_rsp_timer_ent;
+    UINT8           trace_level;
+    BD_ADDR         pairing_bda;
+    tSMP_STATE      state;
+    BOOLEAN         derive_lk;
+    BOOLEAN         id_addr_rcvd;
+    tBLE_ADDR_TYPE  id_addr_type;
+    BD_ADDR         id_addr;
+    BOOLEAN         smp_over_br;
+    tSMP_BR_STATE   br_state;           /* if SMP over BR/ERD has priority over SMP */
+    UINT8           failure;
+    UINT8           status;
+    UINT8           role;
+    UINT16          flags;
+    UINT8           cb_evt;
+    tSMP_SEC_LEVEL  sec_level;
+    BOOLEAN         connect_initialized;
+    BT_OCTET16      confirm;
+    BT_OCTET16      rconfirm;
+    BT_OCTET16      rrand;                      /* for SC this is peer nonce */
+    BT_OCTET16      rand;                       /* for SC this is local nonce */
+    BT_OCTET32      private_key;
+    BT_OCTET32      dhkey;
+    BT_OCTET16      commitment;
+    BT_OCTET16      remote_commitment;
+    BT_OCTET16      local_random;               /* local randomizer - passkey or OOB randomizer */
+    BT_OCTET16      peer_random;                /* peer randomizer - passkey or OOB randomizer */
+    BT_OCTET16      dhkey_check;
+    BT_OCTET16      remote_dhkey_check;
+    tSMP_PUBLIC_KEY loc_publ_key;
+    tSMP_PUBLIC_KEY peer_publ_key;
+    tSMP_OOB_DATA_TYPE  req_oob_type;
+    tSMP_SC_OOB_DATA    sc_oob_data;
+    tSMP_IO_CAP     peer_io_caps;
+    tSMP_IO_CAP     local_io_capability;
+    tSMP_OOB_FLAG   peer_oob_flag;
+    tSMP_OOB_FLAG   loc_oob_flag;
+    tSMP_AUTH_REQ   peer_auth_req;
+    tSMP_AUTH_REQ   loc_auth_req;
+    BOOLEAN         secure_connections_only_mode_required;/* TRUE if locally SM is required to operate */
+                                            /* either in Secure Connections mode or not at all */
+    tSMP_ASSO_MODEL selected_association_model;
+    BOOLEAN         le_secure_connections_mode_is_used;
+    BOOLEAN le_sc_kp_notif_is_used;
+    tSMP_SC_KEY_TYPE local_keypress_notification;
+    tSMP_SC_KEY_TYPE peer_keypress_notification;
+    UINT8           round;       /* authentication stage 1 round for passkey association model */
+    UINT32          number_to_display;
+    BT_OCTET16      mac_key;
+    UINT8           peer_enc_size;
+    UINT8           loc_enc_size;
+    UINT8           peer_i_key;
+    UINT8           peer_r_key;
+    UINT8           local_i_key;
+    UINT8           local_r_key;
+
+    BT_OCTET16      tk;
+    BT_OCTET16      ltk;
+    UINT16          div;
+    BT_OCTET16      csrk;  /* storage for local CSRK */
+    UINT16          ediv;
+    BT_OCTET8       enc_rand;
+    UINT8           rand_enc_proc_state;
+    UINT8           addr_type;
+    BD_ADDR         local_bda;
+    BOOLEAN         is_pair_cancel;
+    BOOLEAN         discard_sec_req;
+    UINT8           rcvd_cmd_code;
+    UINT8           rcvd_cmd_len;
+    UINT16          total_tx_unacked;
+    BOOLEAN         wait_for_authorization_complete;
+    UINT8           cert_failure; /*failure case for certification */
+} tSMP_CB;
+
+/* Server Action functions are of this type */
+typedef void (*tSMP_ACT)(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+#if SMP_DYNAMIC_MEMORY == FALSE
+extern tSMP_CB  smp_cb;
+#else
+extern tSMP_CB *smp_cb_ptr;
+#define smp_cb (*smp_cb_ptr)
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+/* Functions provided by att_main.c */
+extern void smp_init (void);
+
+/* smp main */
+extern void smp_sm_event(tSMP_CB *p_cb, tSMP_EVENT event, void *p_data);
+
+extern void smp_proc_sec_request(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void  smp_set_fail_nc (BOOLEAN enable);
+extern void  smp_set_fail_conf (BOOLEAN enable);
+extern void  smp_set_passk_entry_fail(BOOLEAN enable);
+extern void  smp_set_oob_fail(BOOLEAN enable);
+extern void  smp_set_peer_sc_notif(BOOLEAN enable);
+extern void smp_aes_cmac_rfc4493_chk (UINT8 *key, UINT8 *msg, UINT8 msg_len,
+                                              UINT8 mac_len, UINT8 *mac);
+extern void smp_f4_calc_chk (UINT8 *U, UINT8 *V, UINT8 *X, UINT8 *Z, UINT8 *mac);
+extern void smp_g2_calc_chk (UINT8 *U, UINT8 *V, UINT8 *X, UINT8 *Y);
+extern void smp_h6_calc_chk (UINT8 *key, UINT8 *key_id, UINT8 *mac);
+extern void smp_f5_key_calc_chk (UINT8 *w, UINT8 *mac);
+extern void smp_f5_mackey_or_ltk_calc_chk(UINT8 *t, UINT8 *counter,
+                                                  UINT8 *key_id, UINT8 *n1,
+                                                  UINT8 *n2, UINT8 *a1, UINT8 *a2,
+                                                  UINT8 *length, UINT8 *mac);
+extern void smp_f5_calc_chk (UINT8 *w, UINT8 *n1, UINT8 *n2, UINT8 *a1, UINT8 *a2,
+                                    UINT8 *mac_key, UINT8 *ltk);
+extern void smp_f6_calc_chk (UINT8 *w, UINT8 *n1, UINT8 *n2, UINT8 *r,
+                                     UINT8 *iocap, UINT8 *a1, UINT8 *a2, UINT8 *mac);
+/* smp_main */
+extern void         smp_sm_event(tSMP_CB *p_cb, tSMP_EVENT event, void *p_data);
+extern tSMP_STATE   smp_get_state(void);
+extern void         smp_set_state(tSMP_STATE state);
+
+/* smp_br_main */
+extern void smp_br_state_machine_event(tSMP_CB *p_cb, tSMP_BR_EVENT event, void *p_data);
+extern tSMP_BR_STATE    smp_get_br_state(void);
+extern void             smp_set_br_state(tSMP_BR_STATE state);
+
+
+/* smp_act.c */
+extern void smp_send_pair_req(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_send_confirm(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_send_pair_fail(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_send_rand(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_send_pair_public_key(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_send_commitment(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_send_dhkey_check(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_send_keypress_notification(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_proc_pair_fail(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_proc_confirm(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_proc_rand(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_process_pairing_public_key(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_proc_enc_info(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_proc_master_id(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_proc_id_info(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_proc_id_addr(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_proc_sec_grant(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_proc_sec_req(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_proc_sl_key(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_start_enc(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_enc_cmpl(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_proc_discard(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_pairing_cmpl(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_decide_association_model(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_send_app_cback(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_proc_compare(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_check_auth_req(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_process_io_response(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_send_id_info(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_send_enc_info(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_send_csrk_info(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_send_ltk_reply(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_proc_pair_cmd(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_pair_terminate(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_idle_terminate(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_send_pair_rsp(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_key_distribution(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_proc_srk_info(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_generate_csrk(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_fast_conn_param(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_key_pick_key(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_both_have_public_keys(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_start_secure_connection_phase1(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_process_local_nonce(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_process_pairing_commitment(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_process_peer_nonce(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_process_dhkey_check(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_match_dhkey_checks(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_process_keypress_notification(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_move_to_secure_connections_phase2(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_phase_2_dhkey_checks_are_present(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_wait_for_both_public_keys(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_start_passkey_verification(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_process_secure_connection_oob_data(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_process_secure_connection_long_term_key(void);
+extern void smp_set_local_oob_keys(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_set_local_oob_random_commitment(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_set_derive_link_key(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_derive_link_key_from_long_term_key(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_br_process_pairing_command(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_br_process_security_grant(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_br_process_slave_keys_response(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_br_send_pair_response(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_br_check_authorization_request(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_br_select_next_key(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_br_process_link_key(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_key_distribution_by_transport(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_br_pairing_complete(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+
+/* smp_l2c */
+extern void smp_l2cap_if_init (void);
+extern void smp_data_ind (BD_ADDR bd_addr, BT_HDR *p_buf);
+
+/* smp_util.c */
+extern BOOLEAN smp_send_cmd(UINT8 cmd_code, tSMP_CB *p_cb);
+extern void smp_cb_cleanup(tSMP_CB *p_cb);
+extern void smp_reset_control_value(tSMP_CB *p_cb);
+extern void smp_proc_pairing_cmpl(tSMP_CB *p_cb);
+extern void smp_convert_string_to_tk(BT_OCTET16 tk, UINT32 passkey);
+extern void smp_mask_enc_key(UINT8 loc_enc_size, UINT8 * p_data);
+extern void smp_rsp_timeout(void *data);
+extern void smp_xor_128(BT_OCTET16 a, BT_OCTET16 b);
+extern BOOLEAN smp_encrypt_data (UINT8 *key, UINT8 key_len,
+                                 UINT8 *plain_text, UINT8 pt_len,
+                                 tSMP_ENC *p_out);
+extern BOOLEAN smp_command_has_invalid_parameters(tSMP_CB *p_cb);
+extern void smp_reject_unexpected_pairing_command(BD_ADDR bd_addr);
+extern tSMP_ASSO_MODEL smp_select_association_model(tSMP_CB *p_cb);
+extern void smp_reverse_array(UINT8 *arr, UINT8 len);
+extern UINT8 smp_calculate_random_input(UINT8 *random, UINT8 round);
+extern void smp_collect_local_io_capabilities(UINT8 *iocap, tSMP_CB *p_cb);
+extern void smp_collect_peer_io_capabilities(UINT8 *iocap, tSMP_CB *p_cb);
+extern void smp_collect_local_ble_address(UINT8 *le_addr, tSMP_CB *p_cb);
+extern void smp_collect_peer_ble_address(UINT8 *le_addr, tSMP_CB *p_cb);
+extern BOOLEAN smp_check_commitment(tSMP_CB *p_cb);
+extern void smp_save_secure_connections_long_term_key(tSMP_CB *p_cb);
+extern BOOLEAN smp_calculate_f5_mackey_and_long_term_key(tSMP_CB *p_cb);
+extern void smp_remove_fixed_channel(tSMP_CB *p_cb);
+extern BOOLEAN smp_request_oob_data(tSMP_CB *p_cb);
+
+/* smp_keys.c */
+extern void smp_generate_srand_mrand_confirm (tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_generate_compare (tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_generate_stk (tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_generate_ltk(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_generate_passkey (tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_generate_rand_cont(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_create_private_key(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_use_oob_private_key(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_compute_dhkey(tSMP_CB *p_cb);
+extern void smp_calculate_local_commitment(tSMP_CB *p_cb);
+extern void smp_calculate_peer_commitment(tSMP_CB *p_cb, BT_OCTET16 output_buf);
+extern void smp_calculate_numeric_comparison_display_number(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_calculate_local_dhkey_check(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_calculate_peer_dhkey_check(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+extern void smp_start_nonce_generation(tSMP_CB *p_cb);
+extern BOOLEAN smp_calculate_link_key_from_long_term_key(tSMP_CB *p_cb);
+extern BOOLEAN smp_calculate_long_term_key_from_link_key(tSMP_CB *p_cb);
+extern void smp_calculate_f4(UINT8 *u, UINT8 *v, UINT8 *x, UINT8 z, UINT8 *c);
+extern UINT32 smp_calculate_g2(UINT8 *u, UINT8 *v, UINT8 *x, UINT8 *y);
+extern BOOLEAN smp_calculate_f5(UINT8 *w, UINT8 *n1, UINT8 *n2, UINT8 *a1, UINT8 *a2,
+                           UINT8 *mac_key, UINT8 *ltk);
+extern BOOLEAN smp_calculate_f5_mackey_or_long_term_key(UINT8 *t, UINT8 *counter,
+                                         UINT8 *key_id, UINT8 *n1, UINT8 *n2, UINT8 *a1,
+                                         UINT8 *a2, UINT8 *length, UINT8 *mac);
+extern BOOLEAN smp_calculate_f5_key(UINT8 *w, UINT8 *t);
+extern BOOLEAN smp_calculate_f6(UINT8 *w, UINT8 *n1, UINT8 *n2, UINT8 *r, UINT8 *iocap,
+                               UINT8 *a1, UINT8 *a2, UINT8 *f3);
+extern BOOLEAN smp_calculate_h6(UINT8 *w, UINT8 *keyid, UINT8 *h2);
+#if SMP_DEBUG == TRUE
+extern void smp_debug_print_nbyte_little_endian (UINT8 *p, const UINT8 *key_name,
+                                                 UINT8 len);
+#endif
+
+/* smp_cmac.c */
+extern BOOLEAN aes_cipher_msg_auth_code(BT_OCTET16 key, UINT8 *input, UINT16 length,
+                                                 UINT16 tlen, UINT8 *p_signature);
+extern void print128(BT_OCTET16 x, const UINT8 *key_name);
+
+#endif
+
+#endif /* SMP_INT_H */
diff --git a/rtkbt/code/bt/stack/smp/smp_keys.c b/rtkbt/code/bt/stack/smp/smp_keys.c
new file mode 100755
index 0000000..a985f97
--- /dev/null
+++ b/rtkbt/code/bt/stack/smp/smp_keys.c
@@ -0,0 +1,2272 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains security manager protocol utility functions
+ *
+ ******************************************************************************/
+#include "bt_target.h"
+
+#if SMP_INCLUDED == TRUE
+#if SMP_DEBUG == TRUE
+    #include <stdio.h>
+#endif
+#include <string.h>
+#include "bt_utils.h"
+#include "btm_ble_api.h"
+#include "smp_int.h"
+#include "btm_int.h"
+#include "btm_ble_int.h"
+#include "hcimsgs.h"
+#include "aes.h"
+#include "p_256_ecc_pp.h"
+#include "device/include/controller.h"
+
+#ifndef SMP_MAX_ENC_REPEAT
+  #define SMP_MAX_ENC_REPEAT  3
+#endif
+
+static void smp_rand_back(tBTM_RAND_ENC *p);
+static void smp_generate_confirm(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+static void smp_generate_ltk_cont(tSMP_CB *p_cb, tSMP_INT_DATA *p_data);
+static void smp_generate_y(tSMP_CB *p_cb, tSMP_INT_DATA *p);
+static void smp_generate_rand_vector (tSMP_CB *p_cb, tSMP_INT_DATA *p);
+static void smp_process_stk(tSMP_CB *p_cb, tSMP_ENC *p);
+static void smp_calculate_comfirm_cont(tSMP_CB *p_cb, tSMP_ENC *p);
+static void smp_process_confirm(tSMP_CB *p_cb, tSMP_ENC *p);
+static void smp_process_compare(tSMP_CB *p_cb, tSMP_ENC *p);
+static void smp_process_ediv(tSMP_CB *p_cb, tSMP_ENC *p);
+static BOOLEAN smp_calculate_legacy_short_term_key(tSMP_CB *p_cb, tSMP_ENC *output);
+static void smp_continue_private_key_creation(tSMP_CB *p_cb, tBTM_RAND_ENC *p);
+static void smp_process_private_key(tSMP_CB *p_cb);
+static void smp_finish_nonce_generation(tSMP_CB *p_cb);
+static void smp_process_new_nonce(tSMP_CB *p_cb);
+
+#define SMP_PASSKEY_MASK    0xfff00000
+
+void smp_debug_print_nbyte_little_endian(UINT8 *p, const UINT8 *key_name, UINT8 len)
+{
+#if SMP_DEBUG == TRUE
+    int     ind, x;
+    int     col_count = 32;
+    int     row_count;
+    UINT8   p_buf[512];
+
+    SMP_TRACE_WARNING("%s(LSB ~ MSB):", key_name);
+    memset(p_buf, 0, sizeof(p_buf));
+    row_count = len % col_count ? len / col_count + 1: len / col_count;
+
+    ind = 0;
+    for (int row = 0; row <  row_count; row++)
+    {
+        for (int column = 0, x = 0; (ind < len) && (column < col_count); column++, ind++)
+        {
+            x += sprintf((char *)&p_buf[x], "%02x ", p[ind]);
+        }
+        SMP_TRACE_WARNING("  [%03d]: %s", row * col_count, p_buf);
+    }
+#endif
+}
+
+void smp_debug_print_nbyte_big_endian (UINT8 *p, const UINT8 *key_name, UINT8 len)
+{
+#if SMP_DEBUG == TRUE
+    UINT8  p_buf[512];
+
+    SMP_TRACE_WARNING("%s(MSB ~ LSB):", key_name);
+    memset(p_buf, 0, sizeof(p_buf));
+
+    int ind = 0;
+    int  ncols = 32; /* num entries in one line */
+    int  nrows;      /* num lines */
+    int  x;
+
+    nrows = len % ncols ? len / ncols + 1: len / ncols;
+    for (int row = 0; row <  nrows; row++)
+    {
+        for (int col = 0, x = 0; (ind < len) && (col < ncols); col++, ind++)
+        {
+            x += sprintf ((char *)&p_buf[len-x-1], "%02x ", p[ind]);
+        }
+        SMP_TRACE_WARNING("[%03d]: %s", row * ncols, p_buf);
+    }
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         smp_encrypt_data
+**
+** Description      This function is called to encrypt data.
+**                  It uses AES-128 encryption algorithm.
+**                  Plain_text is encrypted using key, the result is at p_out.
+**
+** Returns          void
+**
+*******************************************************************************/
+BOOLEAN smp_encrypt_data (UINT8 *key, UINT8 key_len,
+                          UINT8 *plain_text, UINT8 pt_len,
+                          tSMP_ENC *p_out)
+{
+    aes_context ctx;
+    UINT8 *p_start = NULL;
+    UINT8 *p = NULL;
+    UINT8 *p_rev_data = NULL;    /* input data in big endilan format */
+    UINT8 *p_rev_key = NULL;     /* input key in big endilan format */
+    UINT8 *p_rev_output = NULL;  /* encrypted output in big endilan format */
+
+    SMP_TRACE_DEBUG ("%s", __func__);
+    if ( (p_out == NULL ) || (key_len != SMP_ENCRYT_KEY_SIZE) )
+    {
+        SMP_TRACE_ERROR ("%s failed", __func__);
+        return FALSE;
+    }
+
+    p_start = (UINT8 *)osi_calloc(SMP_ENCRYT_DATA_SIZE * 4);
+
+    if (pt_len > SMP_ENCRYT_DATA_SIZE)
+        pt_len = SMP_ENCRYT_DATA_SIZE;
+
+    p = p_start;
+    ARRAY_TO_STREAM (p, plain_text, pt_len); /* byte 0 to byte 15 */
+    p_rev_data = p = p_start + SMP_ENCRYT_DATA_SIZE; /* start at byte 16 */
+    REVERSE_ARRAY_TO_STREAM (p, p_start, SMP_ENCRYT_DATA_SIZE);  /* byte 16 to byte 31 */
+    p_rev_key = p; /* start at byte 32 */
+    REVERSE_ARRAY_TO_STREAM (p, key, SMP_ENCRYT_KEY_SIZE); /* byte 32 to byte 47 */
+
+#if SMP_DEBUG == TRUE && SMP_DEBUG_VERBOSE == TRUE
+    smp_debug_print_nbyte_little_endian(key, (const UINT8 *)"Key", SMP_ENCRYT_KEY_SIZE);
+    smp_debug_print_nbyte_little_endian(p_start, (const UINT8 *)"Plain text", SMP_ENCRYT_DATA_SIZE);
+#endif
+    p_rev_output = p;
+    aes_set_key(p_rev_key, SMP_ENCRYT_KEY_SIZE, &ctx);
+    aes_encrypt(p_rev_data, p, &ctx);  /* outputs in byte 48 to byte 63 */
+
+    p = p_out->param_buf;
+    REVERSE_ARRAY_TO_STREAM (p, p_rev_output, SMP_ENCRYT_DATA_SIZE);
+#if SMP_DEBUG == TRUE && SMP_DEBUG_VERBOSE == TRUE
+    smp_debug_print_nbyte_little_endian(p_out->param_buf, (const UINT8 *)"Encrypted text", SMP_ENCRYT_KEY_SIZE);
+#endif
+
+    p_out->param_len = SMP_ENCRYT_KEY_SIZE;
+    p_out->status = HCI_SUCCESS;
+    p_out->opcode =  HCI_BLE_ENCRYPT;
+
+    osi_free(p_start);
+
+    return TRUE;
+}
+
+/*******************************************************************************
+**
+** Function         smp_generate_passkey
+**
+** Description      This function is called to generate passkey.
+**
+** Returns          void
+**
+*******************************************************************************/
+void smp_generate_passkey(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    UNUSED(p_data);
+
+    SMP_TRACE_DEBUG ("%s", __func__);
+    p_cb->rand_enc_proc_state = SMP_GEN_TK;
+
+    /* generate MRand or SRand */
+    if (!btsnd_hcic_ble_rand((void *)smp_rand_back))
+        smp_rand_back(NULL);
+}
+
+/*******************************************************************************
+**
+** Function         smp_proc_passkey
+**
+** Description      This function is called to process a passkey.
+**
+** Returns          void
+**
+*******************************************************************************/
+void smp_proc_passkey(tSMP_CB *p_cb , tBTM_RAND_ENC *p)
+{
+    UINT8   *tt = p_cb->tk;
+    tSMP_KEY    key;
+    UINT32  passkey; /* 19655 test number; */
+    UINT8 *pp = p->param_buf;
+
+    SMP_TRACE_DEBUG ("%s", __func__);
+    STREAM_TO_UINT32(passkey, pp);
+    passkey &= ~SMP_PASSKEY_MASK;
+
+    /* truncate by maximum value */
+    while (passkey > BTM_MAX_PASSKEY_VAL)
+        passkey >>= 1;
+
+    /* save the TK */
+    memset(p_cb->tk, 0, BT_OCTET16_LEN);
+    UINT32_TO_STREAM(tt, passkey);
+
+    key.key_type = SMP_KEY_TYPE_TK;
+    key.p_data  = p_cb->tk;
+
+    if (p_cb->p_callback)
+    {
+        (*p_cb->p_callback)(SMP_PASSKEY_NOTIF_EVT, p_cb->pairing_bda, (tSMP_EVT_DATA *)&passkey);
+    }
+
+    if (p_cb->selected_association_model == SMP_MODEL_SEC_CONN_PASSKEY_DISP)
+    {
+        smp_sm_event(&smp_cb, SMP_KEY_READY_EVT, &passkey);
+    }
+    else
+    {
+        smp_sm_event(p_cb, SMP_KEY_READY_EVT, (tSMP_INT_DATA *)&key);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         smp_generate_stk
+**
+** Description      This function is called to generate STK calculated by running
+**                  AES with the TK value as key and a concatenation of the random
+**                  values.
+**
+** Returns          void
+**
+*******************************************************************************/
+void smp_generate_stk(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    UNUSED(p_data);
+
+    tSMP_ENC output;
+    tSMP_STATUS status = SMP_PAIR_FAIL_UNKNOWN;
+
+    SMP_TRACE_DEBUG ("%s", __func__);
+
+    if (p_cb->le_secure_connections_mode_is_used)
+    {
+        SMP_TRACE_WARNING ("FOR LE SC LTK IS USED INSTEAD OF STK");
+        output.param_len = SMP_ENCRYT_KEY_SIZE;
+        output.status = HCI_SUCCESS;
+        output.opcode =  HCI_BLE_ENCRYPT;
+        memcpy(output.param_buf, p_cb->ltk, SMP_ENCRYT_DATA_SIZE);
+    }
+    else if (!smp_calculate_legacy_short_term_key(p_cb, &output))
+    {
+        SMP_TRACE_ERROR("%s failed", __func__);
+        smp_sm_event(p_cb, SMP_AUTH_CMPL_EVT, &status);
+        return;
+    }
+
+    smp_process_stk(p_cb, &output);
+}
+
+/*******************************************************************************
+**
+** Function         smp_generate_srand_mrand_confirm
+**
+** Description      This function is called to start the second pairing phase by
+**                  start generating random number.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void smp_generate_srand_mrand_confirm(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    UNUSED(p_data);
+
+    SMP_TRACE_DEBUG ("%s", __func__);
+    p_cb->rand_enc_proc_state = SMP_GEN_SRAND_MRAND;
+    /* generate MRand or SRand */
+    if (!btsnd_hcic_ble_rand((void *)smp_rand_back))
+        smp_rand_back(NULL);
+}
+
+/*******************************************************************************
+**
+** Function         smp_generate_rand_cont
+**
+** Description      This function is called to generate another 64 bits random for
+**                  MRand or Srand.
+**
+** Returns          void
+**
+*******************************************************************************/
+void smp_generate_rand_cont(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    UNUSED(p_data);
+
+    SMP_TRACE_DEBUG ("%s", __func__);
+    p_cb->rand_enc_proc_state = SMP_GEN_SRAND_MRAND_CONT;
+    /* generate 64 MSB of MRand or SRand */
+    if (!btsnd_hcic_ble_rand((void *)smp_rand_back))
+        smp_rand_back(NULL);
+}
+
+/*******************************************************************************
+**
+** Function         smp_generate_ltk
+**
+** Description      This function is called:
+**                  - in legacy pairing - to calculate LTK, starting with DIV
+**                    generation;
+**                  - in LE Secure Connections pairing over LE transport - to process LTK
+**                    already generated to encrypt LE link;
+**                  - in LE Secure Connections pairing over BR/EDR transport - to start
+**                    BR/EDR Link Key processing.
+**
+** Returns          void
+**
+*******************************************************************************/
+void smp_generate_ltk(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    UNUSED(p_data);
+
+    BOOLEAN div_status;
+    SMP_TRACE_DEBUG ("%s", __FUNCTION__);
+    if (smp_get_br_state() == SMP_BR_STATE_BOND_PENDING)
+    {
+        smp_br_process_link_key(p_cb, NULL);
+        return;
+    }
+    else if (p_cb->le_secure_connections_mode_is_used)
+    {
+        smp_process_secure_connection_long_term_key();
+        return;
+    }
+
+    div_status = btm_get_local_div(p_cb->pairing_bda, &p_cb->div);
+
+    if (div_status)
+    {
+        smp_generate_ltk_cont(p_cb, NULL);
+    }
+    else
+    {
+        SMP_TRACE_DEBUG ("Generate DIV for LTK");
+        p_cb->rand_enc_proc_state = SMP_GEN_DIV_LTK;
+        /* generate MRand or SRand */
+        if (!btsnd_hcic_ble_rand((void *)smp_rand_back))
+            smp_rand_back(NULL);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         smp_compute_csrk
+**
+** Description      This function is called to calculate CSRK
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void smp_compute_csrk(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    UNUSED(p_data);
+
+    BT_OCTET16  er;
+    UINT8       buffer[4]; /* for (r || DIV)  r=1*/
+    UINT16      r=1;
+    UINT8       *p=buffer;
+    tSMP_ENC    output;
+    tSMP_STATUS   status = SMP_PAIR_FAIL_UNKNOWN;
+
+    SMP_TRACE_DEBUG ("smp_compute_csrk div=%x", p_cb->div);
+    BTM_GetDeviceEncRoot(er);
+    /* CSRK = d1(ER, DIV, 1) */
+    UINT16_TO_STREAM(p, p_cb->div);
+    UINT16_TO_STREAM(p, r);
+
+    if (!SMP_Encrypt(er, BT_OCTET16_LEN, buffer, 4, &output))
+    {
+        SMP_TRACE_ERROR("smp_generate_csrk failed");
+        if (p_cb->smp_over_br)
+        {
+            smp_br_state_machine_event(p_cb, SMP_BR_AUTH_CMPL_EVT, &status);
+        }
+        else
+        {
+            smp_sm_event(p_cb, SMP_AUTH_CMPL_EVT, &status);
+        }
+    }
+    else
+    {
+        memcpy((void *)p_cb->csrk, output.param_buf, BT_OCTET16_LEN);
+        smp_send_csrk_info(p_cb, NULL);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         smp_generate_csrk
+**
+** Description      This function is called to calculate CSRK, starting with DIV
+**                  generation.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void smp_generate_csrk(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    UNUSED(p_data);
+
+    BOOLEAN     div_status;
+
+    SMP_TRACE_DEBUG ("smp_generate_csrk");
+
+    div_status = btm_get_local_div(p_cb->pairing_bda, &p_cb->div);
+    if (div_status)
+    {
+        smp_compute_csrk(p_cb, NULL);
+    }
+    else
+    {
+        SMP_TRACE_DEBUG ("Generate DIV for CSRK");
+        p_cb->rand_enc_proc_state = SMP_GEN_DIV_CSRK;
+        if (!btsnd_hcic_ble_rand((void *)smp_rand_back))
+            smp_rand_back(NULL);
+    }
+}
+
+/*******************************************************************************
+** Function         smp_concatenate_peer
+**                  add pairing command sent from local device into p1.
+*******************************************************************************/
+void smp_concatenate_local( tSMP_CB *p_cb, UINT8 **p_data, UINT8 op_code)
+{
+    UINT8   *p = *p_data;
+
+    SMP_TRACE_DEBUG ("%s", __func__);
+    UINT8_TO_STREAM(p, op_code);
+    UINT8_TO_STREAM(p, p_cb->local_io_capability);
+    UINT8_TO_STREAM(p, p_cb->loc_oob_flag);
+    UINT8_TO_STREAM(p, p_cb->loc_auth_req);
+    UINT8_TO_STREAM(p, p_cb->loc_enc_size);
+    UINT8_TO_STREAM(p, p_cb->local_i_key);
+    UINT8_TO_STREAM(p, p_cb->local_r_key);
+
+    *p_data = p;
+}
+
+/*******************************************************************************
+** Function         smp_concatenate_peer
+**                  add pairing command received from peer device into p1.
+*******************************************************************************/
+void smp_concatenate_peer( tSMP_CB *p_cb, UINT8 **p_data, UINT8 op_code)
+{
+    UINT8   *p = *p_data;
+
+    SMP_TRACE_DEBUG ("smp_concatenate_peer ");
+    UINT8_TO_STREAM(p, op_code);
+    UINT8_TO_STREAM(p, p_cb->peer_io_caps);
+    UINT8_TO_STREAM(p, p_cb->peer_oob_flag);
+    UINT8_TO_STREAM(p, p_cb->peer_auth_req);
+    UINT8_TO_STREAM(p, p_cb->peer_enc_size);
+    UINT8_TO_STREAM(p, p_cb->peer_i_key);
+    UINT8_TO_STREAM(p, p_cb->peer_r_key);
+
+    *p_data = p;
+}
+
+/*******************************************************************************
+**
+** Function         smp_gen_p1_4_confirm
+**
+** Description      Generate Confirm/Compare Step1:
+**                  p1 = pres || preq || rat' || iat'
+**
+** Returns          void
+**
+*******************************************************************************/
+void smp_gen_p1_4_confirm( tSMP_CB *p_cb, BT_OCTET16 p1)
+{
+    UINT8 *p = (UINT8 *)p1;
+    tBLE_ADDR_TYPE    addr_type = 0;
+    BD_ADDR           remote_bda;
+
+    SMP_TRACE_DEBUG ("smp_gen_p1_4_confirm");
+
+    if (!BTM_ReadRemoteConnectionAddr(p_cb->pairing_bda, remote_bda, &addr_type))
+    {
+        SMP_TRACE_ERROR("can not generate confirm for unknown device");
+        return;
+    }
+
+    BTM_ReadConnectionAddr( p_cb->pairing_bda, p_cb->local_bda, &p_cb->addr_type);
+
+    if (p_cb->role == HCI_ROLE_MASTER)
+    {
+        /* LSB : rat': initiator's(local) address type */
+        UINT8_TO_STREAM(p, p_cb->addr_type);
+        /* LSB : iat': responder's address type */
+        UINT8_TO_STREAM(p, addr_type);
+        /* concatinate preq */
+        smp_concatenate_local(p_cb, &p, SMP_OPCODE_PAIRING_REQ);
+        /* concatinate pres */
+        smp_concatenate_peer(p_cb, &p, SMP_OPCODE_PAIRING_RSP);
+    }
+    else
+    {
+        /* LSB : iat': initiator's address type */
+        UINT8_TO_STREAM(p, addr_type);
+        /* LSB : rat': responder's(local) address type */
+        UINT8_TO_STREAM(p, p_cb->addr_type);
+        /* concatinate preq */
+        smp_concatenate_peer(p_cb, &p, SMP_OPCODE_PAIRING_REQ);
+        /* concatinate pres */
+        smp_concatenate_local(p_cb, &p, SMP_OPCODE_PAIRING_RSP);
+    }
+#if SMP_DEBUG == TRUE
+    SMP_TRACE_DEBUG("p1 = pres || preq || rat' || iat'");
+    smp_debug_print_nbyte_little_endian ((UINT8 *)p1, (const UINT8 *)"P1", 16);
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         smp_gen_p2_4_confirm
+**
+** Description      Generate Confirm/Compare Step2:
+**                  p2 = padding || ia || ra
+**
+** Returns          void
+**
+*******************************************************************************/
+void smp_gen_p2_4_confirm( tSMP_CB *p_cb, BT_OCTET16 p2)
+{
+    UINT8       *p = (UINT8 *)p2;
+    BD_ADDR     remote_bda;
+    tBLE_ADDR_TYPE  addr_type = 0;
+
+    if (!BTM_ReadRemoteConnectionAddr(p_cb->pairing_bda, remote_bda, &addr_type))
+    {
+        SMP_TRACE_ERROR("can not generate confirm p2 for unknown device");
+        return;
+    }
+
+    SMP_TRACE_DEBUG ("smp_gen_p2_4_confirm");
+
+    memset(p, 0, sizeof(BT_OCTET16));
+
+    if (p_cb->role == HCI_ROLE_MASTER)
+    {
+        /* LSB ra */
+        BDADDR_TO_STREAM(p, remote_bda);
+        /* ia */
+        BDADDR_TO_STREAM(p, p_cb->local_bda);
+    }
+    else
+    {
+        /* LSB ra */
+        BDADDR_TO_STREAM(p, p_cb->local_bda);
+        /* ia */
+        BDADDR_TO_STREAM(p, remote_bda);
+    }
+#if SMP_DEBUG == TRUE
+    SMP_TRACE_DEBUG("p2 = padding || ia || ra");
+    smp_debug_print_nbyte_little_endian(p2, (const UINT8 *)"p2", 16);
+#endif
+}
+
+/*******************************************************************************
+**
+** Function         smp_calculate_comfirm
+**
+** Description      This function is called to calculate Confirm value.
+**
+** Returns          void
+**
+*******************************************************************************/
+void smp_calculate_comfirm (tSMP_CB *p_cb, BT_OCTET16 rand, BD_ADDR bda)
+{
+    UNUSED(bda);
+
+    BT_OCTET16      p1;
+    tSMP_ENC       output;
+    tSMP_STATUS     status = SMP_PAIR_FAIL_UNKNOWN;
+
+    SMP_TRACE_DEBUG ("smp_calculate_comfirm ");
+    /* generate p1 = pres || preq || rat' || iat' */
+    smp_gen_p1_4_confirm(p_cb, p1);
+
+    /* p1 = rand XOR p1 */
+    smp_xor_128(p1, rand);
+
+    smp_debug_print_nbyte_little_endian ((UINT8 *)p1, (const UINT8 *)"P1' = r XOR p1", 16);
+
+    /* calculate e(k, r XOR p1), where k = TK */
+    if (!SMP_Encrypt(p_cb->tk, BT_OCTET16_LEN, p1, BT_OCTET16_LEN, &output))
+    {
+        SMP_TRACE_ERROR("smp_generate_csrk failed");
+        smp_sm_event(p_cb, SMP_AUTH_CMPL_EVT, &status);
+    }
+    else
+    {
+        smp_calculate_comfirm_cont(p_cb, &output);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         smp_calculate_comfirm_cont
+**
+** Description      This function is called when SConfirm/MConfirm is generated
+**                  proceed to send the Confirm request/response to peer device.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void smp_calculate_comfirm_cont(tSMP_CB *p_cb, tSMP_ENC *p)
+{
+    BT_OCTET16    p2;
+    tSMP_ENC      output;
+    tSMP_STATUS     status = SMP_PAIR_FAIL_UNKNOWN;
+
+    SMP_TRACE_DEBUG ("smp_calculate_comfirm_cont ");
+#if SMP_DEBUG == TRUE
+    SMP_TRACE_DEBUG("Confirm step 1 p1' = e(k, r XOR p1)  Generated");
+    smp_debug_print_nbyte_little_endian (p->param_buf, (const UINT8 *)"C1", 16);
+#endif
+
+    smp_gen_p2_4_confirm(p_cb, p2);
+
+    /* calculate p2 = (p1' XOR p2) */
+    smp_xor_128(p2, p->param_buf);
+    smp_debug_print_nbyte_little_endian ((UINT8 *)p2, (const UINT8 *)"p2' = C1 xor p2", 16);
+
+    /* calculate: Confirm = E(k, p1' XOR p2) */
+    if (!SMP_Encrypt(p_cb->tk, BT_OCTET16_LEN, p2, BT_OCTET16_LEN, &output))
+    {
+        SMP_TRACE_ERROR("smp_calculate_comfirm_cont failed");
+        smp_sm_event(p_cb, SMP_AUTH_CMPL_EVT, &status);
+    }
+    else
+    {
+        switch (p_cb->rand_enc_proc_state)
+        {
+            case SMP_GEN_CONFIRM:
+                smp_process_confirm(p_cb, &output);
+                break;
+
+            case SMP_GEN_COMPARE:
+                smp_process_compare(p_cb, &output);
+                break;
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         smp_generate_confirm
+**
+** Description      This function is called when a 48 bits random number is generated
+**                  as SRand or MRand, continue to calculate Sconfirm or MConfirm.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void smp_generate_confirm(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    UNUSED(p_data);
+
+    SMP_TRACE_DEBUG ("%s", __func__);
+    p_cb->rand_enc_proc_state = SMP_GEN_CONFIRM;
+    smp_debug_print_nbyte_little_endian ((UINT8 *)p_cb->rand,  (const UINT8 *)"local rand", 16);
+    smp_calculate_comfirm(p_cb, p_cb->rand, p_cb->pairing_bda);
+}
+
+/*******************************************************************************
+**
+** Function         smp_generate_compare
+**
+** Description      This function is called to generate SConfirm for Slave device,
+**                  or MSlave for Master device. This function can be also used for
+**                  generating Compare number for confirm value check.
+**
+** Returns          void
+**
+*******************************************************************************/
+void smp_generate_compare (tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    UNUSED(p_data);
+
+    SMP_TRACE_DEBUG ("smp_generate_compare ");
+    p_cb->rand_enc_proc_state = SMP_GEN_COMPARE;
+    smp_debug_print_nbyte_little_endian ((UINT8 *)p_cb->rrand,  (const UINT8 *)"peer rand", 16);
+    smp_calculate_comfirm(p_cb, p_cb->rrand, p_cb->local_bda);
+}
+
+/*******************************************************************************
+**
+** Function         smp_process_confirm
+**
+** Description      This function is called when SConfirm/MConfirm is generated
+**                  proceed to send the Confirm request/response to peer device.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void smp_process_confirm(tSMP_CB *p_cb, tSMP_ENC *p)
+{
+    tSMP_KEY    key;
+
+    SMP_TRACE_DEBUG ("%s", __FUNCTION__);
+    memcpy(p_cb->confirm, p->param_buf, BT_OCTET16_LEN);
+
+#if (SMP_DEBUG == TRUE)
+    SMP_TRACE_DEBUG("Confirm  Generated");
+    smp_debug_print_nbyte_little_endian ((UINT8 *)p_cb->confirm,  (const UINT8 *)"Confirm", 16);
+#endif
+
+    key.key_type = SMP_KEY_TYPE_CFM;
+    key.p_data = p->param_buf;
+    smp_sm_event(p_cb, SMP_KEY_READY_EVT, &key);
+}
+
+/*******************************************************************************
+**
+** Function         smp_process_compare
+**
+** Description      This function is called when Compare is generated using the
+**                  RRand and local BDA, TK information.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void smp_process_compare(tSMP_CB *p_cb, tSMP_ENC *p)
+{
+    tSMP_KEY    key;
+
+    SMP_TRACE_DEBUG ("smp_process_compare ");
+#if (SMP_DEBUG == TRUE)
+    SMP_TRACE_DEBUG("Compare Generated");
+    smp_debug_print_nbyte_little_endian (p->param_buf,  (const UINT8 *)"Compare", 16);
+#endif
+    key.key_type = SMP_KEY_TYPE_CMP;
+    key.p_data   = p->param_buf;
+
+    smp_sm_event(p_cb, SMP_KEY_READY_EVT, &key);
+}
+
+/*******************************************************************************
+**
+** Function         smp_process_stk
+**
+** Description      This function is called when STK is generated
+**                  proceed to send the encrypt the link using STK.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void smp_process_stk(tSMP_CB *p_cb, tSMP_ENC *p)
+{
+    tSMP_KEY    key;
+
+    SMP_TRACE_DEBUG ("smp_process_stk ");
+#if (SMP_DEBUG == TRUE)
+    SMP_TRACE_ERROR("STK Generated");
+#endif
+    smp_mask_enc_key(p_cb->loc_enc_size, p->param_buf);
+
+    key.key_type = SMP_KEY_TYPE_STK;
+    key.p_data   = p->param_buf;
+
+    smp_sm_event(p_cb, SMP_KEY_READY_EVT, &key);
+}
+
+/*******************************************************************************
+**
+** Function         smp_generate_ltk_cont
+**
+** Description      This function is to calculate LTK = d1(ER, DIV, 0)= e(ER, DIV)
+**
+** Returns          void
+**
+*******************************************************************************/
+static void smp_generate_ltk_cont(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    UNUSED(p_data);
+
+    BT_OCTET16  er;
+    tSMP_ENC    output;
+    tSMP_STATUS     status = SMP_PAIR_FAIL_UNKNOWN;
+
+    SMP_TRACE_DEBUG ("%s", __func__);
+    BTM_GetDeviceEncRoot(er);
+
+    /* LTK = d1(ER, DIV, 0)= e(ER, DIV)*/
+    if (!SMP_Encrypt(er, BT_OCTET16_LEN, (UINT8 *)&p_cb->div,
+                     sizeof(UINT16), &output))
+    {
+        SMP_TRACE_ERROR("%s failed", __func__);
+        smp_sm_event(p_cb, SMP_AUTH_CMPL_EVT, &status);
+    }
+    else
+    {
+        /* mask the LTK */
+        smp_mask_enc_key(p_cb->loc_enc_size, output.param_buf);
+        memcpy((void *)p_cb->ltk, output.param_buf, BT_OCTET16_LEN);
+        smp_generate_rand_vector(p_cb, NULL);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         smp_generate_y
+**
+** Description      This function is to proceed generate Y = E(DHK, Rand)
+**
+** Returns          void
+**
+*******************************************************************************/
+static void smp_generate_y(tSMP_CB *p_cb, tSMP_INT_DATA *p)
+{
+    UNUSED(p);
+
+    BT_OCTET16  dhk;
+    tSMP_ENC   output;
+    tSMP_STATUS     status = SMP_PAIR_FAIL_UNKNOWN;
+
+
+    SMP_TRACE_DEBUG ("smp_generate_y ");
+    BTM_GetDeviceDHK(dhk);
+
+    if (!SMP_Encrypt(dhk, BT_OCTET16_LEN, p_cb->enc_rand,
+                     BT_OCTET8_LEN, &output))
+    {
+        SMP_TRACE_ERROR("smp_generate_y failed");
+        smp_sm_event(p_cb, SMP_AUTH_CMPL_EVT, &status);
+    }
+    else
+    {
+        smp_process_ediv(p_cb, &output);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         smp_generate_rand_vector
+**
+** Description      This function is called when LTK is generated, send state machine
+**                  event to SMP.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void smp_generate_rand_vector (tSMP_CB *p_cb, tSMP_INT_DATA *p)
+{
+    UNUSED(p);
+
+    /* generate EDIV and rand now */
+    /* generate random vector */
+    SMP_TRACE_DEBUG ("smp_generate_rand_vector ");
+    p_cb->rand_enc_proc_state = SMP_GEN_RAND_V;
+    if (!btsnd_hcic_ble_rand((void *)smp_rand_back))
+        smp_rand_back(NULL);
+}
+
+/*******************************************************************************
+**
+** Function         smp_process_ediv
+**
+** Description      This function is to calculate EDIV = Y xor DIV
+**
+** Returns          void
+**
+*******************************************************************************/
+static void smp_process_ediv(tSMP_CB *p_cb, tSMP_ENC *p)
+{
+    tSMP_KEY    key;
+    UINT8 *pp= p->param_buf;
+    UINT16  y;
+
+    SMP_TRACE_DEBUG ("smp_process_ediv ");
+    STREAM_TO_UINT16(y, pp);
+
+    /* EDIV = Y xor DIV */
+    p_cb->ediv = p_cb->div ^ y;
+    /* send LTK ready */
+    SMP_TRACE_ERROR("LTK ready");
+    key.key_type = SMP_KEY_TYPE_LTK;
+    key.p_data   = p->param_buf;
+
+    smp_sm_event(p_cb, SMP_KEY_READY_EVT, &key);
+}
+
+/*******************************************************************************
+**
+** Function         smp_calculate_legacy_short_term_key
+**
+** Description      The function calculates legacy STK.
+**
+** Returns          FALSE if out of resources, TRUE in other cases.
+**
+*******************************************************************************/
+BOOLEAN smp_calculate_legacy_short_term_key(tSMP_CB *p_cb, tSMP_ENC *output)
+{
+    BT_OCTET16 ptext;
+    UINT8 *p = ptext;
+
+    SMP_TRACE_DEBUG ("%s", __func__);
+    memset(p, 0, BT_OCTET16_LEN);
+    if (p_cb->role == HCI_ROLE_MASTER)
+    {
+        memcpy(p, p_cb->rand, BT_OCTET8_LEN);
+        memcpy(&p[BT_OCTET8_LEN], p_cb->rrand, BT_OCTET8_LEN);
+    }
+    else
+    {
+        memcpy(p, p_cb->rrand, BT_OCTET8_LEN);
+        memcpy(&p[BT_OCTET8_LEN], p_cb->rand, BT_OCTET8_LEN);
+    }
+
+    BOOLEAN encrypted;
+    /* generate STK = Etk(rand|rrand)*/
+    encrypted = SMP_Encrypt( p_cb->tk, BT_OCTET16_LEN, ptext, BT_OCTET16_LEN, output);
+    if (!encrypted)
+    {
+        SMP_TRACE_ERROR("%s failed", __func__);
+    }
+    return encrypted;
+}
+
+/*******************************************************************************
+**
+** Function         smp_create_private_key
+**
+** Description      This function is called to create private key used to
+**                  calculate public key and DHKey.
+**                  The function starts private key creation requesting controller
+**                  to generate [0-7] octets of private key.
+**
+** Returns          void
+**
+*******************************************************************************/
+void smp_create_private_key(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    SMP_TRACE_DEBUG ("%s",__FUNCTION__);
+    p_cb->rand_enc_proc_state = SMP_GENERATE_PRIVATE_KEY_0_7;
+    if (!btsnd_hcic_ble_rand((void *)smp_rand_back))
+        smp_rand_back(NULL);
+}
+
+/*******************************************************************************
+**
+** Function         smp_use_oob_private_key
+**
+** Description      This function is called
+**                  - to save the secret key used to calculate the public key used
+**                    in calculations of commitment sent OOB to a peer
+**                  - to use this secret key to recalculate the public key and
+**                    start the process of sending this public key to the peer
+**                  if secret/public keys have to be reused.
+**                  If the keys aren't supposed to be reused, continue from the
+**                  point from which request for OOB data was issued.
+**
+** Returns          void
+**
+*******************************************************************************/
+void smp_use_oob_private_key(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    SMP_TRACE_DEBUG ("%s req_oob_type: %d, role: %d",
+                      __func__, p_cb->req_oob_type, p_cb->role);
+
+    switch (p_cb->req_oob_type)
+    {
+        case SMP_OOB_BOTH:
+        case SMP_OOB_LOCAL:
+            SMP_TRACE_DEBUG("%s restore secret key", __func__)
+            memcpy(p_cb->private_key, p_cb->sc_oob_data.loc_oob_data.private_key_used, BT_OCTET32_LEN);
+            smp_process_private_key(p_cb);
+            break;
+        default:
+            SMP_TRACE_DEBUG("%s create secret key anew", __func__);
+            smp_set_state(SMP_STATE_PAIR_REQ_RSP);
+            smp_decide_association_model(p_cb, NULL);
+            break;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         smp_continue_private_key_creation
+**
+** Description      This function is used to continue private key creation.
+**
+** Returns          void
+**
+*******************************************************************************/
+void smp_continue_private_key_creation (tSMP_CB *p_cb, tBTM_RAND_ENC *p)
+{
+    UINT8   state = p_cb->rand_enc_proc_state & ~0x80;
+    SMP_TRACE_DEBUG ("%s state=0x%x", __func__, state);
+
+    switch (state)
+    {
+        case SMP_GENERATE_PRIVATE_KEY_0_7:
+            memcpy((void *)p_cb->private_key, p->param_buf, p->param_len);
+            p_cb->rand_enc_proc_state = SMP_GENERATE_PRIVATE_KEY_8_15;
+            if (!btsnd_hcic_ble_rand((void *)smp_rand_back))
+                smp_rand_back(NULL);
+            break;
+
+        case SMP_GENERATE_PRIVATE_KEY_8_15:
+            memcpy((void *)&p_cb->private_key[8], p->param_buf, p->param_len);
+            p_cb->rand_enc_proc_state = SMP_GENERATE_PRIVATE_KEY_16_23;
+            if (!btsnd_hcic_ble_rand((void *)smp_rand_back))
+                smp_rand_back(NULL);
+            break;
+
+        case SMP_GENERATE_PRIVATE_KEY_16_23:
+            memcpy((void *)&p_cb->private_key[16], p->param_buf, p->param_len);
+            p_cb->rand_enc_proc_state = SMP_GENERATE_PRIVATE_KEY_24_31;
+            if (!btsnd_hcic_ble_rand((void *)smp_rand_back))
+                smp_rand_back(NULL);
+            break;
+
+        case SMP_GENERATE_PRIVATE_KEY_24_31:
+            memcpy((void *)&p_cb->private_key[24], p->param_buf, p->param_len);
+            smp_process_private_key (p_cb);
+            break;
+
+        default:
+            break;
+    }
+
+    return;
+}
+
+/*******************************************************************************
+**
+** Function         smp_process_private_key
+**
+** Description      This function processes private key.
+**                  It calculates public key and notifies SM that private key /
+**                  public key pair is created.
+**
+** Returns          void
+**
+*******************************************************************************/
+void smp_process_private_key(tSMP_CB *p_cb)
+{
+    Point       public_key;
+    BT_OCTET32  private_key;
+
+    SMP_TRACE_DEBUG ("%s", __FUNCTION__);
+
+    memcpy(private_key, p_cb->private_key, BT_OCTET32_LEN);
+    ECC_PointMult(&public_key, &(curve_p256.G), (DWORD*) private_key, KEY_LENGTH_DWORDS_P256);
+    memcpy(p_cb->loc_publ_key.x, public_key.x, BT_OCTET32_LEN);
+    memcpy(p_cb->loc_publ_key.y, public_key.y, BT_OCTET32_LEN);
+
+    smp_debug_print_nbyte_little_endian (p_cb->private_key, (const UINT8 *)"private",
+                                         BT_OCTET32_LEN);
+    smp_debug_print_nbyte_little_endian (p_cb->loc_publ_key.x, (const UINT8 *)"local public(x)",
+                                         BT_OCTET32_LEN);
+    smp_debug_print_nbyte_little_endian (p_cb->loc_publ_key.y, (const UINT8 *)"local public(y)",
+                                         BT_OCTET32_LEN);
+    p_cb->flags |= SMP_PAIR_FLAG_HAVE_LOCAL_PUBL_KEY;
+    smp_sm_event(p_cb, SMP_LOC_PUBL_KEY_CRTD_EVT, NULL);
+}
+
+/*******************************************************************************
+**
+** Function         smp_compute_dhkey
+**
+** Description      The function:
+**                  - calculates a new public key using as input local private
+**                    key and peer public key;
+**                  - saves the new public key x-coordinate as DHKey.
+**
+** Returns          void
+**
+*******************************************************************************/
+void smp_compute_dhkey (tSMP_CB *p_cb)
+{
+    Point       peer_publ_key, new_publ_key;
+    BT_OCTET32  private_key;
+
+    SMP_TRACE_DEBUG ("%s", __FUNCTION__);
+
+    memcpy(private_key, p_cb->private_key, BT_OCTET32_LEN);
+    memcpy(peer_publ_key.x, p_cb->peer_publ_key.x, BT_OCTET32_LEN);
+    memcpy(peer_publ_key.y, p_cb->peer_publ_key.y, BT_OCTET32_LEN);
+
+    ECC_PointMult(&new_publ_key, &peer_publ_key, (DWORD*) private_key, KEY_LENGTH_DWORDS_P256);
+
+    memcpy(p_cb->dhkey, new_publ_key.x, BT_OCTET32_LEN);
+
+    smp_debug_print_nbyte_little_endian (p_cb->dhkey, (const UINT8 *)"Old DHKey",
+                                         BT_OCTET32_LEN);
+
+    smp_debug_print_nbyte_little_endian (p_cb->private_key, (const UINT8 *)"private",
+                                         BT_OCTET32_LEN);
+    smp_debug_print_nbyte_little_endian (p_cb->peer_publ_key.x, (const UINT8 *)"rem public(x)",
+                                         BT_OCTET32_LEN);
+    smp_debug_print_nbyte_little_endian (p_cb->peer_publ_key.y, (const UINT8 *)"rem public(y)",
+                                         BT_OCTET32_LEN);
+    smp_debug_print_nbyte_little_endian (p_cb->dhkey, (const UINT8 *)"Reverted DHKey",
+                                         BT_OCTET32_LEN);
+}
+
+/*******************************************************************************
+**
+** Function         smp_calculate_local_commitment
+**
+** Description      The function calculates and saves local commmitment in CB.
+**
+** Returns          void
+**
+*******************************************************************************/
+void smp_calculate_local_commitment(tSMP_CB *p_cb)
+{
+    UINT8 random_input;
+
+    SMP_TRACE_DEBUG("%s", __FUNCTION__);
+
+    switch (p_cb->selected_association_model)
+    {
+        case SMP_MODEL_SEC_CONN_JUSTWORKS:
+        case SMP_MODEL_SEC_CONN_NUM_COMP:
+            if (p_cb->role  == HCI_ROLE_MASTER)
+                SMP_TRACE_WARNING ("local commitment calc on master is not expected \
+                                    for Just Works/Numeric Comparison models");
+            smp_calculate_f4(p_cb->loc_publ_key.x, p_cb->peer_publ_key.x, p_cb->rand, 0,
+                             p_cb->commitment);
+            break;
+        case SMP_MODEL_SEC_CONN_PASSKEY_ENT:
+        case SMP_MODEL_SEC_CONN_PASSKEY_DISP:
+            random_input = smp_calculate_random_input(p_cb->local_random, p_cb->round);
+            smp_calculate_f4(p_cb->loc_publ_key.x, p_cb->peer_publ_key.x, p_cb->rand,
+                             random_input, p_cb->commitment);
+            break;
+        case SMP_MODEL_SEC_CONN_OOB:
+            SMP_TRACE_WARNING ("local commitment calc is expected for OOB model BEFORE pairing");
+            smp_calculate_f4(p_cb->loc_publ_key.x, p_cb->loc_publ_key.x, p_cb->local_random, 0,
+                             p_cb->commitment);
+            break;
+        default:
+            SMP_TRACE_ERROR("Association Model = %d is not used in LE SC",
+                             p_cb->selected_association_model);
+            return;
+    }
+
+    SMP_TRACE_EVENT ("local commitment calculation is completed");
+}
+
+/*******************************************************************************
+**
+** Function         smp_calculate_peer_commitment
+**
+** Description      The function calculates and saves peer commmitment at the
+**                  provided output buffer.
+**
+** Returns          void
+**
+*******************************************************************************/
+void smp_calculate_peer_commitment(tSMP_CB *p_cb, BT_OCTET16 output_buf)
+{
+    UINT8 ri;
+
+    SMP_TRACE_DEBUG ("%s", __FUNCTION__);
+
+    switch (p_cb->selected_association_model)
+    {
+        case SMP_MODEL_SEC_CONN_JUSTWORKS:
+        case SMP_MODEL_SEC_CONN_NUM_COMP:
+            if (p_cb->role  == HCI_ROLE_SLAVE)
+                SMP_TRACE_WARNING ("peer commitment calc on slave is not expected \
+                for Just Works/Numeric Comparison models");
+            smp_calculate_f4(p_cb->peer_publ_key.x, p_cb->loc_publ_key.x, p_cb->rrand, 0,
+                             output_buf);
+            break;
+        case SMP_MODEL_SEC_CONN_PASSKEY_ENT:
+        case SMP_MODEL_SEC_CONN_PASSKEY_DISP:
+            ri = smp_calculate_random_input(p_cb->peer_random, p_cb->round);
+            smp_calculate_f4(p_cb->peer_publ_key.x, p_cb->loc_publ_key.x, p_cb->rrand, ri,
+                             output_buf);
+            break;
+        case SMP_MODEL_SEC_CONN_OOB:
+            smp_calculate_f4(p_cb->peer_publ_key.x, p_cb->peer_publ_key.x, p_cb->peer_random, 0,
+                             output_buf);
+            break;
+        default:
+            SMP_TRACE_ERROR("Association Model = %d is not used in LE SC",
+                             p_cb->selected_association_model);
+            return;
+    }
+
+    SMP_TRACE_EVENT ("peer commitment calculation is completed");
+}
+
+/*******************************************************************************
+**
+** Function         smp_calculate_f4
+**
+** Description      The function calculates
+**                  C = f4(U, V, X, Z) = AES-CMAC (U||V||Z)
+**                                               X
+**                  where
+**                  input:  U is 256 bit,
+**                          V is 256 bit,
+**                          X is 128 bit,
+**                          Z is 8 bit,
+**                  output: C is 128 bit.
+**
+** Returns          void
+**
+** Note             The LSB is the first octet, the MSB is the last octet of
+**                  the AES-CMAC input/output stream.
+**
+*******************************************************************************/
+void smp_calculate_f4(UINT8 *u, UINT8 *v, UINT8 *x, UINT8 z, UINT8 *c)
+{
+    UINT8   msg_len = BT_OCTET32_LEN /* U size */ + BT_OCTET32_LEN /* V size */ + 1 /* Z size */;
+    UINT8   msg[BT_OCTET32_LEN + BT_OCTET32_LEN + 1];
+    UINT8   key[BT_OCTET16_LEN];
+    UINT8   cmac[BT_OCTET16_LEN];
+    UINT8   *p = NULL;
+#if SMP_DEBUG == TRUE
+    UINT8   *p_prnt = NULL;
+#endif
+
+    SMP_TRACE_DEBUG ("%s", __FUNCTION__);
+
+#if SMP_DEBUG == TRUE
+    p_prnt = u;
+    smp_debug_print_nbyte_little_endian (p_prnt, (const UINT8 *)"U", BT_OCTET32_LEN);
+    p_prnt = v;
+    smp_debug_print_nbyte_little_endian (p_prnt, (const UINT8 *)"V", BT_OCTET32_LEN);
+    p_prnt = x;
+    smp_debug_print_nbyte_little_endian (p_prnt, (const UINT8 *)"X", BT_OCTET16_LEN);
+    p_prnt = &z;
+    smp_debug_print_nbyte_little_endian (p_prnt, (const UINT8 *)"Z", 1);
+#endif
+
+    p = msg;
+    UINT8_TO_STREAM(p, z);
+    ARRAY_TO_STREAM(p, v, BT_OCTET32_LEN);
+    ARRAY_TO_STREAM(p, u, BT_OCTET32_LEN);
+#if SMP_DEBUG == TRUE
+    p_prnt = msg;
+    smp_debug_print_nbyte_little_endian (p_prnt, (const UINT8 *)"M", msg_len);
+#endif
+
+    p = key;
+    ARRAY_TO_STREAM(p, x, BT_OCTET16_LEN);
+#if SMP_DEBUG == TRUE
+    p_prnt = key;
+    smp_debug_print_nbyte_little_endian (p_prnt, (const UINT8 *)"K", BT_OCTET16_LEN);
+#endif
+
+    aes_cipher_msg_auth_code(key, msg, msg_len, BT_OCTET16_LEN, cmac);
+#if SMP_DEBUG == TRUE
+    p_prnt = cmac;
+    smp_debug_print_nbyte_little_endian (p_prnt, (const UINT8 *)"AES_CMAC", BT_OCTET16_LEN);
+#endif
+
+    p = c;
+    ARRAY_TO_STREAM(p, cmac, BT_OCTET16_LEN);
+}
+
+/*******************************************************************************
+**
+** Function         smp_calculate_numeric_comparison_display_number
+**
+** Description      The function calculates and saves number to display in numeric
+**                  comparison association mode.
+**
+** Returns          void
+**
+*******************************************************************************/
+void smp_calculate_numeric_comparison_display_number(tSMP_CB *p_cb,
+                                                     tSMP_INT_DATA *p_data)
+{
+    SMP_TRACE_DEBUG ("%s", __func__);
+
+    if (p_cb->role == HCI_ROLE_MASTER)
+    {
+        p_cb->number_to_display =
+            smp_calculate_g2(p_cb->loc_publ_key.x, p_cb->peer_publ_key.x, p_cb->rand,
+                             p_cb->rrand);
+    }
+    else
+    {
+        p_cb->number_to_display =
+            smp_calculate_g2(p_cb->peer_publ_key.x, p_cb->loc_publ_key.x, p_cb->rrand,
+                             p_cb->rand);
+    }
+
+    if (p_cb->number_to_display >= (BTM_MAX_PASSKEY_VAL + 1))
+    {
+        UINT8 reason;
+        reason = p_cb->failure = SMP_PAIR_FAIL_UNKNOWN;
+        smp_sm_event(p_cb, SMP_AUTH_CMPL_EVT, &reason);
+        return;
+    }
+
+    SMP_TRACE_EVENT("Number to display in numeric comparison = %d", p_cb->number_to_display);
+    p_cb->cb_evt = SMP_NC_REQ_EVT;
+    smp_sm_event(p_cb, SMP_SC_DSPL_NC_EVT, &p_cb->number_to_display);
+    return;
+}
+
+/*******************************************************************************
+**
+** Function         smp_calculate_g2
+**
+** Description      The function calculates
+**                  g2(U, V, X, Y) = AES-CMAC (U||V||Y) mod 2**32 mod 10**6
+**                                           X
+**                  and
+**                  Vres = g2(U, V, X, Y) mod 10**6
+**                  where
+**                  input:  U     is 256 bit,
+**                          V     is 256 bit,
+**                          X     is 128 bit,
+**                          Y     is 128 bit,
+**
+** Returns          Vres.
+**                  Expected value has to be in the range [0 - 999999] i.e. [0 - 0xF423F].
+**                  Vres = 1000000 means that the calculation fails.
+**
+** Note             The LSB is the first octet, the MSB is the last octet of
+**                  the AES-CMAC input/output stream.
+**
+*******************************************************************************/
+UINT32 smp_calculate_g2(UINT8 *u, UINT8 *v, UINT8 *x, UINT8 *y)
+{
+    UINT8   msg_len = BT_OCTET32_LEN /* U size */ + BT_OCTET32_LEN /* V size */
+                      + BT_OCTET16_LEN /* Y size */;
+    UINT8   msg[BT_OCTET32_LEN + BT_OCTET32_LEN + BT_OCTET16_LEN];
+    UINT8   key[BT_OCTET16_LEN];
+    UINT8   cmac[BT_OCTET16_LEN];
+    UINT8   *p = NULL;
+    UINT32  vres;
+#if SMP_DEBUG == TRUE
+    UINT8   *p_prnt = NULL;
+#endif
+
+    SMP_TRACE_DEBUG ("%s", __FUNCTION__);
+
+    p = msg;
+    ARRAY_TO_STREAM(p, y, BT_OCTET16_LEN);
+    ARRAY_TO_STREAM(p, v, BT_OCTET32_LEN);
+    ARRAY_TO_STREAM(p, u, BT_OCTET32_LEN);
+#if SMP_DEBUG == TRUE
+    p_prnt = u;
+    smp_debug_print_nbyte_little_endian (p_prnt, (const UINT8 *)"U", BT_OCTET32_LEN);
+    p_prnt = v;
+    smp_debug_print_nbyte_little_endian (p_prnt, (const UINT8 *)"V", BT_OCTET32_LEN);
+    p_prnt = x;
+    smp_debug_print_nbyte_little_endian (p_prnt, (const UINT8 *)"X", BT_OCTET16_LEN);
+    p_prnt = y;
+    smp_debug_print_nbyte_little_endian (p_prnt, (const UINT8 *)"Y", BT_OCTET16_LEN);
+#endif
+
+    p = key;
+    ARRAY_TO_STREAM(p, x, BT_OCTET16_LEN);
+#if SMP_DEBUG == TRUE
+    p_prnt = key;
+    smp_debug_print_nbyte_little_endian (p_prnt, (const UINT8 *)"K", BT_OCTET16_LEN);
+#endif
+
+    if(!aes_cipher_msg_auth_code(key, msg, msg_len, BT_OCTET16_LEN, cmac))
+    {
+        SMP_TRACE_ERROR("%s failed",__FUNCTION__);
+        return (BTM_MAX_PASSKEY_VAL + 1);
+    }
+
+#if SMP_DEBUG == TRUE
+    p_prnt = cmac;
+    smp_debug_print_nbyte_little_endian (p_prnt, (const UINT8 *)"AES-CMAC", BT_OCTET16_LEN);
+#endif
+
+    /* vres = cmac mod 2**32 mod 10**6 */
+    p = &cmac[0];
+    STREAM_TO_UINT32(vres, p);
+#if SMP_DEBUG == TRUE
+    p_prnt = (UINT8 *) &vres;
+    smp_debug_print_nbyte_little_endian (p_prnt, (const UINT8 *)"cmac mod 2**32", 4);
+#endif
+
+    while (vres > BTM_MAX_PASSKEY_VAL)
+        vres -= (BTM_MAX_PASSKEY_VAL + 1);
+#if SMP_DEBUG == TRUE
+    p_prnt = (UINT8 *) &vres;
+    smp_debug_print_nbyte_little_endian (p_prnt, (const UINT8 *)"cmac mod 2**32 mod 10**6", 4);
+#endif
+
+    SMP_TRACE_ERROR("Value for numeric comparison = %d", vres);
+    return vres;
+}
+
+/*******************************************************************************
+**
+** Function         smp_calculate_f5
+**
+** Description      The function provides two AES-CMAC that are supposed to be used as
+**                  - MacKey (MacKey is used in pairing DHKey check calculation);
+**                  - LTK (LTK is used to ecrypt the link after completion of Phase 2
+**                    and on reconnection, to derive BR/EDR LK).
+**                  The function inputs are W, N1, N2, A1, A2.
+**                  F5 rules:
+**                  - the value used as key in MacKey/LTK (T) is calculated
+**                    (function smp_calculate_f5_key(...));
+**                    The formula is:
+**                          T = AES-CMAC    (W)
+**                                      salt
+**                    where salt is internal parameter of smp_calculate_f5_key(...).
+**                  - MacKey and LTK are calculated as AES-MAC values received with the
+**                    key T calculated in the previous step and the plaintext message
+**                    built from the external parameters N1, N2, A1, A2 and the internal
+**                    parameters counter, keyID, length.
+**                    The function smp_calculate_f5_mackey_or_long_term_key(...) is used in the
+**                    calculations.
+**                    The same formula is used in calculation of MacKey and LTK and the
+**                    same parameter values except the value of the internal parameter
+**                    counter:
+**                    - in MacKey calculations the value is 0;
+**                    - in LTK calculations the value is 1.
+**                      MacKey  = AES-CMAC (Counter=0||keyID||N1||N2||A1||A2||Length=256)
+**                                        T
+**                      LTK     = AES-CMAC (Counter=1||keyID||N1||N2||A1||A2||Length=256)
+**                                        T
+**                  The parameters are
+**                  input:
+**                          W       is 256 bits,
+**                          N1      is 128 bits,
+**                          N2      is 128 bits,
+**                          A1 is 56 bit,
+**                          A2 is 56 bit.
+**                  internal:
+**                          Counter is 8 bits,  its value is 0 for MacKey,
+**                                                          1 for LTK;
+**                          KeyId   is 32 bits, its value is
+**                                              0x62746c65 (MSB~LSB);
+**                          Length  is 16 bits, its value is 0x0100
+**                                              (MSB~LSB).
+**                  output:
+**                          MacKey  is 128 bits;
+**                          LTK     is 128 bits
+**
+** Returns          FALSE if out of resources, TRUE in other cases.
+**
+** Note             The LSB is the first octet, the MSB is the last octet of
+**                  the AES-CMAC input/output stream.
+**
+*******************************************************************************/
+BOOLEAN smp_calculate_f5(UINT8 *w, UINT8 *n1, UINT8 *n2, UINT8 *a1, UINT8 *a2,
+                         UINT8 *mac_key, UINT8 *ltk)
+{
+    BT_OCTET16  t;    /* AES-CMAC output in smp_calculate_f5_key(...), key in */
+                      /* smp_calculate_f5_mackey_or_long_term_key(...) */
+#if SMP_DEBUG == TRUE
+    UINT8   *p_prnt = NULL;
+#endif
+    /* internal parameters: */
+
+    /*
+        counter is 0 for MacKey,
+                is 1 for LTK
+    */
+    UINT8   counter_mac_key[1]  = {0};
+    UINT8   counter_ltk[1]      = {1};
+    /*
+        keyID   62746c65
+    */
+    UINT8   key_id[4] = {0x65, 0x6c, 0x74, 0x62};
+    /*
+        length  0100
+    */
+    UINT8   length[2] = {0x00, 0x01};
+
+    SMP_TRACE_DEBUG ("%s", __FUNCTION__);
+#if SMP_DEBUG == TRUE
+    p_prnt = w;
+    smp_debug_print_nbyte_little_endian (p_prnt, (const UINT8 *)"W", BT_OCTET32_LEN);
+    p_prnt = n1;
+    smp_debug_print_nbyte_little_endian (p_prnt, (const UINT8 *)"N1", BT_OCTET16_LEN);
+    p_prnt = n2;
+    smp_debug_print_nbyte_little_endian (p_prnt, (const UINT8 *)"N2", BT_OCTET16_LEN);
+    p_prnt = a1;
+    smp_debug_print_nbyte_little_endian (p_prnt, (const UINT8 *)"A1", 7);
+    p_prnt = a2;
+    smp_debug_print_nbyte_little_endian (p_prnt,(const UINT8 *) "A2", 7);
+#endif
+
+    if (!smp_calculate_f5_key(w, t))
+    {
+        SMP_TRACE_ERROR("%s failed to calc T",__FUNCTION__);
+        return FALSE;
+    }
+#if SMP_DEBUG == TRUE
+    p_prnt = t;
+    smp_debug_print_nbyte_little_endian (p_prnt, (const UINT8 *)"T", BT_OCTET16_LEN);
+#endif
+
+    if (!smp_calculate_f5_mackey_or_long_term_key(t, counter_mac_key, key_id, n1, n2, a1, a2,
+                                                  length, mac_key))
+    {
+        SMP_TRACE_ERROR("%s failed to calc MacKey", __FUNCTION__);
+        return FALSE;
+    }
+#if SMP_DEBUG == TRUE
+    p_prnt = mac_key;
+    smp_debug_print_nbyte_little_endian (p_prnt, (const UINT8 *)"MacKey", BT_OCTET16_LEN);
+#endif
+
+    if (!smp_calculate_f5_mackey_or_long_term_key(t, counter_ltk, key_id, n1, n2, a1, a2,
+                                                  length, ltk))
+    {
+        SMP_TRACE_ERROR("%s failed to calc LTK",__FUNCTION__);
+        return FALSE;
+    }
+#if SMP_DEBUG == TRUE
+    p_prnt = ltk;
+    smp_debug_print_nbyte_little_endian (p_prnt, (const UINT8 *)"LTK", BT_OCTET16_LEN);
+#endif
+
+    return TRUE;
+}
+
+/*******************************************************************************
+**
+** Function         smp_calculate_f5_mackey_or_long_term_key
+**
+** Description      The function calculates the value of MacKey or LTK by the rules
+**                  defined for f5 function.
+**                  At the moment exactly the same formula is used to calculate
+**                  LTK and MacKey.
+**                  The difference is the value of input parameter Counter:
+**                  - in MacKey calculations the value is 0;
+**                  - in LTK calculations the value is 1.
+**                  The formula:
+**                  mac = AES-CMAC (Counter||keyID||N1||N2||A1||A2||Length)
+**                                T
+**                  where
+**                  input:      T       is 256 bits;
+**                              Counter is 8 bits, its value is 0 for MacKey,
+**                                                              1 for LTK;
+**                              keyID   is 32 bits, its value is 0x62746c65;
+**                              N1      is 128 bits;
+**                              N2      is 128 bits;
+**                              A1      is 56 bits;
+**                              A2      is 56 bits;
+**                              Length  is 16 bits, its value is 0x0100
+**                  output:     LTK     is 128 bit.
+**
+** Returns          FALSE if out of resources, TRUE in other cases.
+**
+** Note             The LSB is the first octet, the MSB is the last octet of
+**                  the AES-CMAC input/output stream.
+**
+*******************************************************************************/
+BOOLEAN smp_calculate_f5_mackey_or_long_term_key(UINT8 *t, UINT8 *counter,
+                                  UINT8 *key_id, UINT8 *n1, UINT8 *n2, UINT8 *a1, UINT8 *a2,
+                                  UINT8 *length, UINT8 *mac)
+{
+    UINT8   *p = NULL;
+    UINT8   cmac[BT_OCTET16_LEN];
+    UINT8   key[BT_OCTET16_LEN];
+    UINT8   msg_len = 1 /* Counter size */ + 4 /* keyID size */ +
+            BT_OCTET16_LEN /* N1 size */ + BT_OCTET16_LEN /* N2 size */ +
+            7 /* A1 size*/ + 7 /* A2 size*/ + 2 /* Length size */;
+    UINT8   msg[1 + 4 + BT_OCTET16_LEN + BT_OCTET16_LEN + 7 + 7 + 2];
+    BOOLEAN ret = TRUE;
+#if SMP_DEBUG == TRUE
+    UINT8   *p_prnt = NULL;
+#endif
+
+    SMP_TRACE_DEBUG ("%s", __FUNCTION__);
+#if SMP_DEBUG == TRUE
+    p_prnt = t;
+    smp_debug_print_nbyte_little_endian (p_prnt, (const UINT8 *)"T", BT_OCTET16_LEN);
+    p_prnt = counter;
+    smp_debug_print_nbyte_little_endian (p_prnt, (const UINT8 *)"Counter", 1);
+    p_prnt = key_id;
+    smp_debug_print_nbyte_little_endian (p_prnt, (const UINT8 *)"KeyID", 4);
+    p_prnt = n1;
+    smp_debug_print_nbyte_little_endian (p_prnt, (const UINT8 *)"N1", BT_OCTET16_LEN);
+    p_prnt = n2;
+    smp_debug_print_nbyte_little_endian (p_prnt, (const UINT8 *)"N2", BT_OCTET16_LEN);
+    p_prnt = a1;
+    smp_debug_print_nbyte_little_endian (p_prnt, (const UINT8 *)"A1", 7);
+    p_prnt = a2;
+    smp_debug_print_nbyte_little_endian (p_prnt, (const UINT8 *)"A2", 7);
+    p_prnt = length;
+    smp_debug_print_nbyte_little_endian (p_prnt, (const UINT8 *)"Length", 2);
+#endif
+
+    p = key;
+    ARRAY_TO_STREAM(p, t, BT_OCTET16_LEN);
+#if SMP_DEBUG == TRUE
+    p_prnt = key;
+    smp_debug_print_nbyte_little_endian (p_prnt, (const UINT8 *)"K", BT_OCTET16_LEN);
+#endif
+    p = msg;
+    ARRAY_TO_STREAM(p, length, 2);
+    ARRAY_TO_STREAM(p, a2, 7);
+    ARRAY_TO_STREAM(p, a1, 7);
+    ARRAY_TO_STREAM(p, n2, BT_OCTET16_LEN);
+    ARRAY_TO_STREAM(p, n1, BT_OCTET16_LEN);
+    ARRAY_TO_STREAM(p, key_id, 4);
+    ARRAY_TO_STREAM(p, counter, 1);
+#if SMP_DEBUG == TRUE
+    p_prnt = msg;
+    smp_debug_print_nbyte_little_endian (p_prnt, (const UINT8 *)"M", msg_len);
+#endif
+
+    if (!aes_cipher_msg_auth_code(key, msg, msg_len, BT_OCTET16_LEN, cmac))
+    {
+        SMP_TRACE_ERROR("%s failed", __FUNCTION__);
+        ret = FALSE;
+    }
+
+#if SMP_DEBUG == TRUE
+    p_prnt = cmac;
+    smp_debug_print_nbyte_little_endian (p_prnt, (const UINT8 *)"AES-CMAC", BT_OCTET16_LEN);
+#endif
+
+    p = mac;
+    ARRAY_TO_STREAM(p, cmac, BT_OCTET16_LEN);
+    return ret;
+}
+
+/*******************************************************************************
+**
+** Function         smp_calculate_f5_key
+**
+** Description      The function calculates key T used in calculation of
+**                  MacKey and LTK (f5 output is defined as MacKey || LTK).
+**                  T = AES-CMAC    (W)
+**                              salt
+**                  where
+**                  Internal:   salt    is 128 bit.
+**                  input:      W       is 256 bit.
+**                  Output:     T       is 128 bit.
+**
+** Returns          FALSE if out of resources, TRUE in other cases.
+**
+** Note             The LSB is the first octet, the MSB is the last octet of
+**                  the AES-CMAC input/output stream.
+**
+*******************************************************************************/
+BOOLEAN smp_calculate_f5_key(UINT8 *w, UINT8 *t)
+{
+    UINT8 *p = NULL;
+    /* Please see 2.2.7 LE Secure Connections Key Generation Function f5 */
+    /*
+        salt:   6C88 8391 AAF5 A538 6037 0BDB 5A60 83BE
+    */
+    BT_OCTET16  salt = {
+        0xBE, 0x83, 0x60, 0x5A, 0xDB, 0x0B, 0x37, 0x60,
+        0x38, 0xA5, 0xF5, 0xAA, 0x91, 0x83, 0x88, 0x6C
+    };
+#if SMP_DEBUG == TRUE
+    UINT8   *p_prnt = NULL;
+#endif
+
+    SMP_TRACE_DEBUG ("%s", __FUNCTION__);
+#if SMP_DEBUG == TRUE
+    p_prnt = salt;
+    smp_debug_print_nbyte_little_endian (p_prnt, (const UINT8 *)"salt", BT_OCTET16_LEN);
+    p_prnt = w;
+    smp_debug_print_nbyte_little_endian (p_prnt, (const UINT8 *)"W", BT_OCTET32_LEN);
+#endif
+
+    BT_OCTET16 key;
+    BT_OCTET32 msg;
+
+    p = key;
+    ARRAY_TO_STREAM(p, salt, BT_OCTET16_LEN);
+    p = msg;
+    ARRAY_TO_STREAM(p, w, BT_OCTET32_LEN);
+#if SMP_DEBUG == TRUE
+    p_prnt = key;
+    smp_debug_print_nbyte_little_endian (p_prnt, (const UINT8 *)"K", BT_OCTET16_LEN);
+    p_prnt = msg;
+    smp_debug_print_nbyte_little_endian (p_prnt, (const UINT8 *)"M", BT_OCTET32_LEN);
+#endif
+
+    BT_OCTET16 cmac;
+    BOOLEAN ret = TRUE;
+    if (!aes_cipher_msg_auth_code(key, msg, BT_OCTET32_LEN, BT_OCTET16_LEN, cmac))
+    {
+        SMP_TRACE_ERROR("%s failed", __FUNCTION__);
+        ret = FALSE;
+    }
+
+#if SMP_DEBUG == TRUE
+    p_prnt = cmac;
+    smp_debug_print_nbyte_little_endian (p_prnt, (const UINT8 *)"AES-CMAC", BT_OCTET16_LEN);
+#endif
+
+    p = t;
+    ARRAY_TO_STREAM(p, cmac, BT_OCTET16_LEN);
+    return ret;
+}
+
+/*******************************************************************************
+**
+** Function         smp_calculate_local_dhkey_check
+**
+** Description      The function calculates and saves local device DHKey check
+**                  value in CB.
+**                  Before doing this it calls smp_calculate_f5_mackey_and_long_term_key(...).
+**                  to calculate MacKey and LTK.
+**                  MacKey is used in dhkey calculation.
+**
+** Returns          void
+**
+*******************************************************************************/
+void smp_calculate_local_dhkey_check(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    UINT8   iocap[3], a[7], b[7];
+
+    SMP_TRACE_DEBUG ("%s", __FUNCTION__);
+
+    smp_calculate_f5_mackey_and_long_term_key(p_cb);
+
+    smp_collect_local_io_capabilities(iocap, p_cb);
+
+    smp_collect_local_ble_address(a, p_cb);
+    smp_collect_peer_ble_address(b, p_cb);
+    smp_calculate_f6(p_cb->mac_key, p_cb->rand, p_cb->rrand, p_cb->peer_random, iocap, a, b,
+                     p_cb->dhkey_check);
+
+    SMP_TRACE_EVENT ("local DHKey check calculation is completed");
+}
+
+/*******************************************************************************
+**
+** Function         smp_calculate_peer_dhkey_check
+**
+** Description      The function calculates peer device DHKey check value.
+**
+** Returns          void
+**
+*******************************************************************************/
+void smp_calculate_peer_dhkey_check(tSMP_CB *p_cb, tSMP_INT_DATA *p_data)
+{
+    UINT8       iocap[3], a[7], b[7];
+    BT_OCTET16  param_buf;
+    BOOLEAN     ret;
+    tSMP_KEY    key;
+    tSMP_STATUS status = SMP_PAIR_FAIL_UNKNOWN;
+
+    SMP_TRACE_DEBUG ("%s", __FUNCTION__);
+
+    smp_collect_peer_io_capabilities(iocap, p_cb);
+
+    smp_collect_local_ble_address(a, p_cb);
+    smp_collect_peer_ble_address(b, p_cb);
+    ret = smp_calculate_f6(p_cb->mac_key, p_cb->rrand, p_cb->rand, p_cb->local_random, iocap,
+                           b, a, param_buf);
+
+    if (ret)
+    {
+        SMP_TRACE_EVENT ("peer DHKey check calculation is completed");
+#if (SMP_DEBUG == TRUE)
+        smp_debug_print_nbyte_little_endian (param_buf, (const UINT8 *)"peer DHKey check",
+                                             BT_OCTET16_LEN);
+#endif
+        key.key_type = SMP_KEY_TYPE_PEER_DHK_CHCK;
+        key.p_data   = param_buf;
+        smp_sm_event(p_cb, SMP_SC_KEY_READY_EVT, &key);
+    }
+    else
+    {
+        SMP_TRACE_EVENT ("peer DHKey check calculation failed");
+        smp_sm_event(p_cb, SMP_AUTH_CMPL_EVT, &status);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         smp_calculate_f6
+**
+** Description      The function calculates
+**                  C = f6(W, N1, N2, R, IOcap, A1, A2) = AES-CMAC (N1||N2||R||IOcap||A1||A2)
+**                                                                W
+**                  where
+**                  input:  W is 128 bit,
+**                          N1 is 128 bit,
+**                          N2 is 128 bit,
+**                          R is 128 bit,
+**                          IOcap is 24 bit,
+**                          A1 is 56 bit,
+**                          A2 is 56 bit,
+**                  output: C is 128 bit.
+**
+** Returns          FALSE if out of resources, TRUE in other cases.
+**
+** Note             The LSB is the first octet, the MSB is the last octet of
+**                  the AES-CMAC input/output stream.
+**
+*******************************************************************************/
+BOOLEAN smp_calculate_f6(UINT8 *w, UINT8 *n1, UINT8 *n2, UINT8 *r, UINT8 *iocap, UINT8 *a1,
+                         UINT8 *a2, UINT8 *c)
+{
+    UINT8   *p = NULL;
+    UINT8   msg_len = BT_OCTET16_LEN /* N1 size */ + BT_OCTET16_LEN /* N2 size */ +
+                      BT_OCTET16_LEN /* R size */ + 3 /* IOcap size */ + 7 /* A1 size*/
+                      + 7 /* A2 size*/;
+    UINT8   msg[BT_OCTET16_LEN + BT_OCTET16_LEN + BT_OCTET16_LEN + 3 + 7 + 7];
+#if SMP_DEBUG == TRUE
+    UINT8   *p_print = NULL;
+#endif
+
+    SMP_TRACE_DEBUG ("%s", __FUNCTION__);
+#if SMP_DEBUG == TRUE
+    p_print = w;
+    smp_debug_print_nbyte_little_endian (p_print, (const UINT8 *)"W", BT_OCTET16_LEN);
+    p_print = n1;
+    smp_debug_print_nbyte_little_endian (p_print, (const UINT8 *)"N1", BT_OCTET16_LEN);
+    p_print = n2;
+    smp_debug_print_nbyte_little_endian (p_print, (const UINT8 *)"N2", BT_OCTET16_LEN);
+    p_print = r;
+    smp_debug_print_nbyte_little_endian (p_print, (const UINT8 *)"R", BT_OCTET16_LEN);
+    p_print = iocap;
+    smp_debug_print_nbyte_little_endian (p_print, (const UINT8 *)"IOcap", 3);
+    p_print = a1;
+    smp_debug_print_nbyte_little_endian (p_print, (const UINT8 *)"A1", 7);
+    p_print = a2;
+    smp_debug_print_nbyte_little_endian (p_print, (const UINT8 *)"A2", 7);
+#endif
+
+    UINT8 cmac[BT_OCTET16_LEN];
+    UINT8 key[BT_OCTET16_LEN];
+
+    p = key;
+    ARRAY_TO_STREAM(p, w, BT_OCTET16_LEN);
+#if SMP_DEBUG == TRUE
+    p_print = key;
+    smp_debug_print_nbyte_little_endian (p_print, (const UINT8 *)"K", BT_OCTET16_LEN);
+#endif
+
+    p = msg;
+    ARRAY_TO_STREAM(p, a2, 7);
+    ARRAY_TO_STREAM(p, a1, 7);
+    ARRAY_TO_STREAM(p, iocap, 3);
+    ARRAY_TO_STREAM(p, r, BT_OCTET16_LEN);
+    ARRAY_TO_STREAM(p, n2, BT_OCTET16_LEN);
+    ARRAY_TO_STREAM(p, n1, BT_OCTET16_LEN);
+#if SMP_DEBUG == TRUE
+    p_print = msg;
+    smp_debug_print_nbyte_little_endian (p_print, (const UINT8 *)"M", msg_len);
+#endif
+
+    BOOLEAN ret = TRUE;
+    if(!aes_cipher_msg_auth_code(key, msg, msg_len, BT_OCTET16_LEN, cmac))
+    {
+        SMP_TRACE_ERROR("%s failed", __FUNCTION__);
+        ret = FALSE;
+    }
+
+#if SMP_DEBUG == TRUE
+    p_print = cmac;
+    smp_debug_print_nbyte_little_endian (p_print, (const UINT8 *)"AES-CMAC", BT_OCTET16_LEN);
+#endif
+
+    p = c;
+    ARRAY_TO_STREAM(p, cmac, BT_OCTET16_LEN);
+    return ret;
+}
+
+/*******************************************************************************
+**
+** Function         smp_calculate_link_key_from_long_term_key
+**
+** Description      The function calculates and saves BR/EDR link key derived from
+**                  LE SC LTK.
+**
+** Returns          FALSE if out of resources, TRUE in other cases.
+**
+*******************************************************************************/
+BOOLEAN smp_calculate_link_key_from_long_term_key(tSMP_CB *p_cb)
+{
+    tBTM_SEC_DEV_REC *p_dev_rec;
+    BD_ADDR bda_for_lk;
+    tBLE_ADDR_TYPE conn_addr_type;
+
+    SMP_TRACE_DEBUG ("%s", __func__);
+
+    if (p_cb->id_addr_rcvd && p_cb->id_addr_type == BLE_ADDR_PUBLIC)
+    {
+        SMP_TRACE_DEBUG ("Use rcvd identity address as BD_ADDR of LK rcvd identity address");
+        memcpy(bda_for_lk, p_cb->id_addr, BD_ADDR_LEN);
+    }
+    else if ((BTM_ReadRemoteConnectionAddr(p_cb->pairing_bda, bda_for_lk, &conn_addr_type)) &&
+              conn_addr_type == BLE_ADDR_PUBLIC)
+    {
+        SMP_TRACE_DEBUG ("Use rcvd connection address as BD_ADDR of LK");
+    }
+    else
+    {
+        SMP_TRACE_WARNING ("Don't have peer public address to associate with LK");
+        return FALSE;
+    }
+
+    if ((p_dev_rec = btm_find_dev (p_cb->pairing_bda)) == NULL)
+    {
+        SMP_TRACE_ERROR("%s failed to find Security Record", __func__);
+        return FALSE;
+    }
+
+    BT_OCTET16 intermediate_link_key;
+    BOOLEAN ret = TRUE;
+
+    ret = smp_calculate_h6(p_cb->ltk, (UINT8 *)"1pmt" /* reversed "tmp1" */,intermediate_link_key);
+    if (!ret)
+    {
+        SMP_TRACE_ERROR("%s failed to derive intermediate_link_key", __func__);
+        return ret;
+    }
+
+    BT_OCTET16 link_key;
+    ret = smp_calculate_h6(intermediate_link_key, (UINT8 *) "rbel" /* reversed "lebr" */, link_key);
+    if (!ret)
+    {
+        SMP_TRACE_ERROR("%s failed", __func__);
+    }
+    else
+    {
+        UINT8 link_key_type;
+        if (btm_cb.security_mode == BTM_SEC_MODE_SC)
+        {
+            /* Secure Connections Only Mode */
+            link_key_type = BTM_LKEY_TYPE_AUTH_COMB_P_256;
+        }
+        else if (controller_get_interface()->supports_secure_connections())
+        {
+            /* both transports are SC capable */
+            if (p_cb->sec_level == SMP_SEC_AUTHENTICATED)
+                link_key_type = BTM_LKEY_TYPE_AUTH_COMB_P_256;
+            else
+                link_key_type = BTM_LKEY_TYPE_UNAUTH_COMB_P_256;
+        }
+        else if (btm_cb.security_mode == BTM_SEC_MODE_SP)
+        {
+            /* BR/EDR transport is SSP capable */
+            if (p_cb->sec_level == SMP_SEC_AUTHENTICATED)
+                link_key_type = BTM_LKEY_TYPE_AUTH_COMB;
+            else
+                link_key_type = BTM_LKEY_TYPE_UNAUTH_COMB;
+        }
+        else
+        {
+            SMP_TRACE_ERROR ("%s failed to update link_key. Sec Mode = %d, sm4 = 0x%02x",
+                 __func__, btm_cb.security_mode, p_dev_rec->sm4);
+            return FALSE;
+        }
+
+        link_key_type += BTM_LTK_DERIVED_LKEY_OFFSET;
+
+        UINT8 *p;
+        BT_OCTET16 notif_link_key;
+        p = notif_link_key;
+        ARRAY16_TO_STREAM(p, link_key);
+
+        btm_sec_link_key_notification (bda_for_lk, notif_link_key, link_key_type);
+
+        SMP_TRACE_EVENT ("%s is completed", __func__);
+    }
+
+    return ret;
+}
+
+/*******************************************************************************
+**
+** Function         smp_calculate_long_term_key_from_link_key
+**
+** Description      The function calculates and saves SC LTK derived from BR/EDR
+**                  link key.
+**
+** Returns          FALSE if out of resources, TRUE in other cases.
+**
+*******************************************************************************/
+BOOLEAN smp_calculate_long_term_key_from_link_key(tSMP_CB *p_cb)
+{
+    BOOLEAN ret = TRUE;
+    tBTM_SEC_DEV_REC *p_dev_rec;
+    UINT8 rev_link_key[16];
+
+    SMP_TRACE_DEBUG ("%s", __FUNCTION__);
+
+    if ((p_dev_rec = btm_find_dev (p_cb->pairing_bda)) == NULL)
+    {
+        SMP_TRACE_ERROR("%s failed to find Security Record",__FUNCTION__);
+        return FALSE;
+    }
+
+    UINT8 br_link_key_type;
+    if ((br_link_key_type = BTM_SecGetDeviceLinkKeyType (p_cb->pairing_bda))
+        == BTM_LKEY_TYPE_IGNORE)
+    {
+        SMP_TRACE_ERROR("%s failed to retrieve BR link type",__FUNCTION__);
+        return FALSE;
+    }
+
+    if ((br_link_key_type != BTM_LKEY_TYPE_AUTH_COMB_P_256) &&
+        (br_link_key_type != BTM_LKEY_TYPE_UNAUTH_COMB_P_256))
+    {
+        SMP_TRACE_ERROR("%s LE SC LTK can't be derived from LK %d",
+                         __FUNCTION__, br_link_key_type);
+        return FALSE;
+    }
+
+    UINT8 *p1;
+    UINT8 *p2;
+    p1 = rev_link_key;
+    p2 = p_dev_rec->link_key;
+    REVERSE_ARRAY_TO_STREAM(p1, p2, 16);
+
+    BT_OCTET16 intermediate_long_term_key;
+    /* "tmp2" obtained from the spec */
+    ret = smp_calculate_h6(rev_link_key, (UINT8 *) "2pmt" /* reversed "tmp2" */,
+                           intermediate_long_term_key);
+
+    if (!ret)
+    {
+        SMP_TRACE_ERROR("%s failed to derive intermediate_long_term_key",__FUNCTION__);
+        return ret;
+    }
+
+    /* "brle" obtained from the spec */
+    ret = smp_calculate_h6(intermediate_long_term_key, (UINT8 *) "elrb" /* reversed "brle" */,
+                           p_cb->ltk);
+
+    if (!ret)
+    {
+        SMP_TRACE_ERROR("%s failed",__FUNCTION__);
+    }
+    else
+    {
+        p_cb->sec_level = (br_link_key_type == BTM_LKEY_TYPE_AUTH_COMB_P_256)
+                           ? SMP_SEC_AUTHENTICATED : SMP_SEC_UNAUTHENTICATE;
+        SMP_TRACE_EVENT ("%s is completed",__FUNCTION__);
+    }
+
+    return ret;
+}
+
+/*******************************************************************************
+**
+** Function         smp_calculate_h6
+**
+** Description      The function calculates
+**                  C = h6(W, KeyID) = AES-CMAC (KeyID)
+**                                             W
+**                  where
+**                  input:  W is 128 bit,
+**                          KeyId is 32 bit,
+**                  output: C is 128 bit.
+**
+** Returns          FALSE if out of resources, TRUE in other cases.
+**
+** Note             The LSB is the first octet, the MSB is the last octet of
+**                  the AES-CMAC input/output stream.
+**
+*******************************************************************************/
+BOOLEAN smp_calculate_h6(UINT8 *w, UINT8 *keyid, UINT8 *c)
+{
+#if SMP_DEBUG == TRUE
+    UINT8   *p_print = NULL;
+#endif
+
+    SMP_TRACE_DEBUG ("%s",__FUNCTION__);
+#if SMP_DEBUG == TRUE
+    p_print = w;
+    smp_debug_print_nbyte_little_endian (p_print, (const UINT8 *)"W", BT_OCTET16_LEN);
+    p_print = keyid;
+    smp_debug_print_nbyte_little_endian (p_print, (const UINT8 *)"keyID", 4);
+#endif
+
+    UINT8 *p = NULL;
+    UINT8 key[BT_OCTET16_LEN];
+
+    p = key;
+    ARRAY_TO_STREAM(p, w, BT_OCTET16_LEN);
+
+#if SMP_DEBUG == TRUE
+    p_print = key;
+    smp_debug_print_nbyte_little_endian (p_print, (const UINT8 *)"K", BT_OCTET16_LEN);
+#endif
+
+    UINT8 msg_len = 4 /* KeyID size */;
+    UINT8 msg[4];
+
+    p = msg;
+    ARRAY_TO_STREAM(p, keyid, 4);
+
+#if SMP_DEBUG == TRUE
+    p_print = msg;
+    smp_debug_print_nbyte_little_endian (p_print,(const UINT8 *) "M", msg_len);
+#endif
+
+    BOOLEAN ret = TRUE;
+    UINT8 cmac[BT_OCTET16_LEN];
+    if (!aes_cipher_msg_auth_code(key, msg, msg_len, BT_OCTET16_LEN, cmac))
+    {
+        SMP_TRACE_ERROR("%s failed",__FUNCTION__);
+        ret = FALSE;
+    }
+
+#if SMP_DEBUG == TRUE
+    p_print = cmac;
+    smp_debug_print_nbyte_little_endian (p_print, (const UINT8 *)"AES-CMAC", BT_OCTET16_LEN);
+#endif
+
+    p = c;
+    ARRAY_TO_STREAM(p, cmac, BT_OCTET16_LEN);
+    return ret;
+}
+
+/*******************************************************************************
+**
+** Function         smp_start_nonce_generation
+**
+** Description      This function starts nonce generation.
+**
+** Returns          void
+**
+*******************************************************************************/
+void smp_start_nonce_generation(tSMP_CB *p_cb)
+{
+    SMP_TRACE_DEBUG("%s", __FUNCTION__);
+    p_cb->rand_enc_proc_state = SMP_GEN_NONCE_0_7;
+    if (!btsnd_hcic_ble_rand((void *)smp_rand_back))
+        smp_rand_back(NULL);
+}
+
+/*******************************************************************************
+**
+** Function         smp_finish_nonce_generation
+**
+** Description      This function finishes nonce generation.
+**
+** Returns          void
+**
+*******************************************************************************/
+void smp_finish_nonce_generation(tSMP_CB *p_cb)
+{
+    SMP_TRACE_DEBUG("%s", __FUNCTION__);
+    p_cb->rand_enc_proc_state = SMP_GEN_NONCE_8_15;
+    if (!btsnd_hcic_ble_rand((void *)smp_rand_back))
+        smp_rand_back(NULL);
+}
+
+/*******************************************************************************
+**
+** Function         smp_process_new_nonce
+**
+** Description      This function notifies SM that it has new nonce.
+**
+** Returns          void
+**
+*******************************************************************************/
+void smp_process_new_nonce(tSMP_CB *p_cb)
+{
+    SMP_TRACE_DEBUG ("%s round %d", __FUNCTION__, p_cb->round);
+    smp_sm_event(p_cb, SMP_HAVE_LOC_NONCE_EVT, NULL);
+}
+
+/*******************************************************************************
+**
+** Function         smp_rand_back
+**
+** Description      This function is to process the rand command finished,
+**                  process the random/encrypted number for further action.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void smp_rand_back(tBTM_RAND_ENC *p)
+{
+    tSMP_CB *p_cb = &smp_cb;
+    UINT8   *pp = p->param_buf;
+    UINT8   failure = SMP_PAIR_FAIL_UNKNOWN;
+    UINT8   state = p_cb->rand_enc_proc_state & ~0x80;
+
+    SMP_TRACE_DEBUG ("%s state=0x%x", __FUNCTION__, state);
+    if (p && p->status == HCI_SUCCESS)
+    {
+        switch (state)
+        {
+            case SMP_GEN_SRAND_MRAND:
+                memcpy((void *)p_cb->rand, p->param_buf, p->param_len);
+                smp_generate_rand_cont(p_cb, NULL);
+                break;
+
+            case SMP_GEN_SRAND_MRAND_CONT:
+                memcpy((void *)&p_cb->rand[8], p->param_buf, p->param_len);
+                smp_generate_confirm(p_cb, NULL);
+                break;
+
+            case SMP_GEN_DIV_LTK:
+                STREAM_TO_UINT16(p_cb->div, pp);
+                smp_generate_ltk_cont(p_cb, NULL);
+                break;
+
+            case SMP_GEN_DIV_CSRK:
+                STREAM_TO_UINT16(p_cb->div, pp);
+                smp_compute_csrk(p_cb, NULL);
+                break;
+
+            case SMP_GEN_TK:
+                smp_proc_passkey(p_cb, p);
+                break;
+
+            case SMP_GEN_RAND_V:
+                memcpy(p_cb->enc_rand, p->param_buf, BT_OCTET8_LEN);
+                smp_generate_y(p_cb, NULL);
+                break;
+
+            case SMP_GENERATE_PRIVATE_KEY_0_7:
+            case SMP_GENERATE_PRIVATE_KEY_8_15:
+            case SMP_GENERATE_PRIVATE_KEY_16_23:
+            case SMP_GENERATE_PRIVATE_KEY_24_31:
+                smp_continue_private_key_creation(p_cb, p);
+                break;
+
+            case SMP_GEN_NONCE_0_7:
+                memcpy((void *)p_cb->rand, p->param_buf, p->param_len);
+                smp_finish_nonce_generation(p_cb);
+                break;
+
+            case SMP_GEN_NONCE_8_15:
+                memcpy((void *)&p_cb->rand[8], p->param_buf, p->param_len);
+                smp_process_new_nonce(p_cb);
+                break;
+        }
+
+        return;
+    }
+
+    SMP_TRACE_ERROR("%s key generation failed: (%d)", __FUNCTION__, p_cb->rand_enc_proc_state);
+    smp_sm_event(p_cb, SMP_AUTH_CMPL_EVT, &failure);
+}
+
+#endif
+
diff --git a/rtkbt/code/bt/stack/smp/smp_l2c.c b/rtkbt/code/bt/stack/smp/smp_l2c.c
new file mode 100755
index 0000000..d401136
--- /dev/null
+++ b/rtkbt/code/bt/stack/smp/smp_l2c.c
@@ -0,0 +1,345 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains functions for the SMP L2Cap interface
+ *
+ ******************************************************************************/
+
+#include "bt_target.h"
+
+#if SMP_INCLUDED == TRUE
+
+#include <string.h>
+#include "btm_ble_api.h"
+#include "l2c_api.h"
+
+#include "smp_int.h"
+
+
+extern fixed_queue_t *btu_general_alarm_queue;
+
+static void smp_tx_complete_callback(UINT16 cid, UINT16 num_pkt);
+
+static void smp_connect_callback(UINT16 channel, BD_ADDR bd_addr, BOOLEAN connected, UINT16 reason,
+                               tBT_TRANSPORT transport);
+static void smp_data_received(UINT16 channel, BD_ADDR bd_addr, BT_HDR *p_buf);
+
+static void smp_br_connect_callback(UINT16 channel, BD_ADDR bd_addr, BOOLEAN connected, UINT16 reason,
+                                    tBT_TRANSPORT transport);
+static void smp_br_data_received(UINT16 channel, BD_ADDR bd_addr, BT_HDR *p_buf);
+
+/*******************************************************************************
+**
+** Function         smp_l2cap_if_init
+**
+** Description      This function is called during the SMP task startup
+**                  to register interface functions with L2CAP.
+**
+*******************************************************************************/
+void smp_l2cap_if_init (void)
+{
+    tL2CAP_FIXED_CHNL_REG  fixed_reg;
+    SMP_TRACE_EVENT ("SMDBG l2c %s", __func__);
+    fixed_reg.fixed_chnl_opts.mode         = L2CAP_FCR_BASIC_MODE;
+    fixed_reg.fixed_chnl_opts.max_transmit = 0;
+    fixed_reg.fixed_chnl_opts.rtrans_tout  = 0;
+    fixed_reg.fixed_chnl_opts.mon_tout     = 0;
+    fixed_reg.fixed_chnl_opts.mps          = 0;
+    fixed_reg.fixed_chnl_opts.tx_win_sz    = 0;
+
+    fixed_reg.pL2CA_FixedConn_Cb = smp_connect_callback;
+    fixed_reg.pL2CA_FixedData_Cb = smp_data_received;
+    fixed_reg.pL2CA_FixedTxComplete_Cb = smp_tx_complete_callback;
+
+    fixed_reg.pL2CA_FixedCong_Cb = NULL;    /* do not handle congestion on this channel */
+    fixed_reg.default_idle_tout  = 60;      /* set 60 seconds timeout, 0xffff default idle timeout */
+
+    L2CA_RegisterFixedChannel (L2CAP_SMP_CID, &fixed_reg);
+
+    fixed_reg.pL2CA_FixedConn_Cb = smp_br_connect_callback;
+    fixed_reg.pL2CA_FixedData_Cb = smp_br_data_received;
+
+    L2CA_RegisterFixedChannel (L2CAP_SMP_BR_CID, &fixed_reg);
+}
+
+/*******************************************************************************
+**
+** Function         smp_connect_callback
+**
+** Description      This callback function is called by L2CAP to indicate that
+**                  SMP channel is
+**                      connected (conn = TRUE)/disconnected (conn = FALSE).
+**
+*******************************************************************************/
+static void smp_connect_callback (UINT16 channel, BD_ADDR bd_addr, BOOLEAN connected, UINT16 reason,
+                                  tBT_TRANSPORT transport)
+{
+    tSMP_CB   *p_cb = &smp_cb;
+    tSMP_INT_DATA   int_data;
+    BD_ADDR dummy_bda = {0};
+
+    SMP_TRACE_EVENT ("SMDBG l2c %s", __FUNCTION__);
+
+    if (transport == BT_TRANSPORT_BR_EDR || memcmp(bd_addr, dummy_bda, BD_ADDR_LEN) == 0)
+        return;
+
+    if (memcmp(bd_addr, p_cb->pairing_bda, BD_ADDR_LEN) == 0)
+    {
+        SMP_TRACE_EVENT ("%s()  for pairing BDA: %08x%04x  Event: %s",
+                        __FUNCTION__,
+                        (bd_addr[0]<<24)+(bd_addr[1]<<16)+(bd_addr[2]<<8) + bd_addr[3],
+                        (bd_addr[4]<<8)+bd_addr[5],
+                        (connected) ? "connected" : "disconnected");
+
+        if (connected)
+        {
+            if(!p_cb->connect_initialized)
+            {
+                p_cb->connect_initialized = TRUE;
+                /* initiating connection established */
+                p_cb->role = L2CA_GetBleConnRole(bd_addr);
+
+                /* initialize local i/r key to be default keys */
+                p_cb->local_r_key = p_cb->local_i_key =  SMP_SEC_DEFAULT_KEY;
+                p_cb->loc_auth_req = p_cb->peer_auth_req = SMP_DEFAULT_AUTH_REQ;
+                p_cb->cb_evt = SMP_IO_CAP_REQ_EVT;
+                smp_sm_event(p_cb, SMP_L2CAP_CONN_EVT, NULL);
+            }
+        }
+        else
+        {
+            int_data.reason = reason;
+            /* Disconnected while doing security */
+            smp_sm_event(p_cb, SMP_L2CAP_DISCONN_EVT, &int_data);
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         smp_data_received
+**
+** Description      This function is called when data is received from L2CAP on
+**                  SMP channel.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+static void smp_data_received(UINT16 channel, BD_ADDR bd_addr, BT_HDR *p_buf)
+{
+    tSMP_CB *p_cb = &smp_cb;
+    UINT8   *p = (UINT8 *)(p_buf + 1) + p_buf->offset;
+    UINT8   cmd ;
+    SMP_TRACE_EVENT ("SMDBG l2c %s", __FUNCTION__);
+
+    STREAM_TO_UINT8(cmd, p);
+
+    /* sanity check */
+    if ((SMP_OPCODE_MAX < cmd) || (SMP_OPCODE_MIN > cmd))
+    {
+        SMP_TRACE_WARNING( "Ignore received command with RESERVED code 0x%02x", cmd);
+        osi_free(p_buf);
+        return;
+    }
+
+    /* reject the pairing request if there is an on-going SMP pairing */
+    if (SMP_OPCODE_PAIRING_REQ == cmd || SMP_OPCODE_SEC_REQ == cmd)
+    {
+        if ((p_cb->state == SMP_STATE_IDLE) && (p_cb->br_state == SMP_BR_STATE_IDLE) &&
+            !(p_cb->flags & SMP_PAIR_FLAGS_WE_STARTED_DD))
+        {
+            p_cb->role = L2CA_GetBleConnRole(bd_addr);
+            memcpy(&p_cb->pairing_bda[0], bd_addr, BD_ADDR_LEN);
+        }
+        else if (memcmp(&bd_addr[0], p_cb->pairing_bda, BD_ADDR_LEN))
+        {
+            osi_free(p_buf);
+            smp_reject_unexpected_pairing_command(bd_addr);
+            return;
+        }
+        /* else, out of state pairing request/security request received, passed into SM */
+    }
+
+    if (memcmp(&bd_addr[0], p_cb->pairing_bda, BD_ADDR_LEN) == 0)
+    {
+        alarm_set_on_queue(p_cb->smp_rsp_timer_ent,
+                           SMP_WAIT_FOR_RSP_TIMEOUT_MS, smp_rsp_timeout, NULL,
+                           btu_general_alarm_queue);
+
+        if (cmd == SMP_OPCODE_CONFIRM)
+        {
+            SMP_TRACE_DEBUG ("in %s cmd = 0x%02x, peer_auth_req = 0x%02x,"
+                              "loc_auth_req = 0x%02x",
+                              __FUNCTION__, cmd, p_cb->peer_auth_req, p_cb->loc_auth_req);
+
+            if ((p_cb->peer_auth_req  & SMP_SC_SUPPORT_BIT) &&
+                (p_cb->loc_auth_req & SMP_SC_SUPPORT_BIT))
+            {
+                cmd = SMP_OPCODE_PAIR_COMMITM;
+            }
+        }
+
+        p_cb->rcvd_cmd_code = cmd;
+        p_cb->rcvd_cmd_len = (UINT8) p_buf->len;
+        smp_sm_event(p_cb, cmd, p);
+    }
+
+    osi_free(p_buf);
+}
+
+/*******************************************************************************
+**
+** Function         smp_tx_complete_callback
+**
+** Description      SMP channel tx complete callback
+**
+*******************************************************************************/
+static void smp_tx_complete_callback (UINT16 cid, UINT16 num_pkt)
+{
+    tSMP_CB *p_cb = &smp_cb;
+
+    if (p_cb->total_tx_unacked >= num_pkt)
+        p_cb->total_tx_unacked -= num_pkt;
+    else
+        SMP_TRACE_ERROR("Unexpected %s: num_pkt = %d", __func__,num_pkt);
+
+    UINT8 reason = SMP_SUCCESS;
+    if (p_cb->total_tx_unacked == 0 && p_cb->wait_for_authorization_complete)
+    {
+        if (cid == L2CAP_SMP_CID)
+            smp_sm_event(p_cb, SMP_AUTH_CMPL_EVT, &reason);
+        else
+            smp_br_state_machine_event(p_cb, SMP_BR_AUTH_CMPL_EVT, &reason);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         smp_br_connect_callback
+**
+** Description      This callback function is called by L2CAP to indicate that
+**                  SMP BR channel is
+**                      connected (conn = TRUE)/disconnected (conn = FALSE).
+**
+*******************************************************************************/
+static void smp_br_connect_callback(UINT16 channel, BD_ADDR bd_addr, BOOLEAN connected,
+                                    UINT16 reason, tBT_TRANSPORT transport)
+{
+    tSMP_CB *p_cb = &smp_cb;
+    tSMP_INT_DATA int_data;
+
+    SMP_TRACE_EVENT ("%s", __func__);
+
+    if (transport != BT_TRANSPORT_BR_EDR)
+    {
+        SMP_TRACE_WARNING("%s is called on unexpected transport %d",
+                           __func__, transport);
+        return;
+    }
+
+    if (!(memcmp(bd_addr, p_cb->pairing_bda, BD_ADDR_LEN) == 0))
+        return;
+
+    SMP_TRACE_EVENT ("%s for pairing BDA: %08x%04x  Event: %s",
+                     __func__,
+                     (bd_addr[0]<<24)+(bd_addr[1]<<16)+(bd_addr[2]<<8) + bd_addr[3],
+                     (bd_addr[4]<<8)+bd_addr[5],
+                     (connected) ? "connected" : "disconnected");
+
+    if (connected)
+    {
+        if(!p_cb->connect_initialized)
+        {
+            p_cb->connect_initialized = TRUE;
+            /* initialize local i/r key to be default keys */
+            p_cb->local_r_key = p_cb->local_i_key =  SMP_BR_SEC_DEFAULT_KEY;
+            p_cb->loc_auth_req = p_cb->peer_auth_req = 0;
+            p_cb->cb_evt = SMP_BR_KEYS_REQ_EVT;
+            smp_br_state_machine_event(p_cb, SMP_BR_L2CAP_CONN_EVT, NULL);
+        }
+    }
+    else
+    {
+        int_data.reason = reason;
+        /* Disconnected while doing security */
+        smp_br_state_machine_event(p_cb, SMP_BR_L2CAP_DISCONN_EVT, &int_data);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         smp_br_data_received
+**
+** Description      This function is called when data is received from L2CAP on
+**                  SMP BR channel.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void smp_br_data_received(UINT16 channel, BD_ADDR bd_addr, BT_HDR *p_buf)
+{
+    tSMP_CB *p_cb = &smp_cb;
+    UINT8   *p = (UINT8 *)(p_buf + 1) + p_buf->offset;
+    UINT8   cmd ;
+    SMP_TRACE_EVENT ("SMDBG l2c %s", __func__);
+
+    STREAM_TO_UINT8(cmd, p);
+
+    /* sanity check */
+    if ((SMP_OPCODE_MAX < cmd) || (SMP_OPCODE_MIN > cmd))
+    {
+        SMP_TRACE_WARNING( "Ignore received command with RESERVED code 0x%02x", cmd);
+        osi_free(p_buf);
+        return;
+    }
+
+    /* reject the pairing request if there is an on-going SMP pairing */
+    if (SMP_OPCODE_PAIRING_REQ == cmd)
+    {
+        if ((p_cb->state == SMP_STATE_IDLE) && (p_cb->br_state == SMP_BR_STATE_IDLE))
+        {
+            p_cb->role = HCI_ROLE_SLAVE;
+            p_cb->smp_over_br = TRUE;
+            memcpy(&p_cb->pairing_bda[0], bd_addr, BD_ADDR_LEN);
+        }
+        else if (memcmp(&bd_addr[0], p_cb->pairing_bda, BD_ADDR_LEN))
+        {
+            osi_free(p_buf);
+            smp_reject_unexpected_pairing_command(bd_addr);
+            return;
+        }
+        /* else, out of state pairing request received, passed into State Machine */
+    }
+
+    if (memcmp(&bd_addr[0], p_cb->pairing_bda, BD_ADDR_LEN) == 0)
+    {
+        alarm_set_on_queue(p_cb->smp_rsp_timer_ent,
+                           SMP_WAIT_FOR_RSP_TIMEOUT_MS, smp_rsp_timeout, NULL,
+                           btu_general_alarm_queue);
+
+        p_cb->rcvd_cmd_code = cmd;
+        p_cb->rcvd_cmd_len = (UINT8) p_buf->len;
+        smp_br_state_machine_event(p_cb, cmd, p);
+    }
+
+    osi_free(p_buf);
+}
+#endif /* SMP_INCLUDED == TRUE */
diff --git a/rtkbt/code/bt/stack/smp/smp_main.c b/rtkbt/code/bt/stack/smp/smp_main.c
new file mode 100755
index 0000000..2d80343
--- /dev/null
+++ b/rtkbt/code/bt/stack/smp/smp_main.c
@@ -0,0 +1,862 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2003-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#include "bt_target.h"
+
+#if SMP_INCLUDED == TRUE
+
+#include <string.h>
+#include "smp_int.h"
+
+const char *const smp_state_name [] =
+{
+    "SMP_STATE_IDLE",
+    "SMP_STATE_WAIT_APP_RSP",
+    "SMP_STATE_SEC_REQ_PENDING",
+    "SMP_STATE_PAIR_REQ_RSP",
+    "SMP_STATE_WAIT_CONFIRM",
+    "SMP_STATE_CONFIRM",
+    "SMP_STATE_RAND",
+    "SMP_STATE_PUBLIC_KEY_EXCH",
+    "SMP_STATE_SEC_CONN_PHS1_START",
+    "SMP_STATE_WAIT_COMMITMENT",
+    "SMP_STATE_WAIT_NONCE",
+    "SMP_STATE_SEC_CONN_PHS2_START",
+    "SMP_STATE_WAIT_DHK_CHECK",
+    "SMP_STATE_DHK_CHECK",
+    "SMP_STATE_ENCRYPTION_PENDING",
+    "SMP_STATE_BOND_PENDING",
+    "SMP_STATE_CREATE_LOCAL_SEC_CONN_OOB_DATA",
+    "SMP_STATE_MAX"
+};
+
+const char *const smp_event_name [] =
+{
+    "PAIRING_REQ_EVT",
+    "PAIRING_RSP_EVT",
+    "CONFIRM_EVT",
+    "RAND_EVT",
+    "PAIRING_FAILED_EVT",
+    "ENC_INFO_EVT",
+    "MASTER_ID_EVT",
+    "ID_INFO_EVT",
+    "ID_ADDR_EVT",
+    "SIGN_INFO_EVT",
+    "SECURITY_REQ_EVT",
+    "PAIR_PUBLIC_KEY_EVT",
+    "PAIR_DHKEY_CHECK_EVT",
+    "PAIR_KEYPRESS_NOTIFICATION_EVT",
+    "PAIR_COMMITMENT_EVT",
+    "KEY_READY_EVT",
+    "ENCRYPTED_EVT",
+    "L2CAP_CONN_EVT",
+    "L2CAP_DISCONN_EVT",
+    "API_IO_RSP_EVT",
+    "API_SEC_GRANT_EVT",
+    "TK_REQ_EVT",
+    "AUTH_CMPL_EVT",
+    "ENC_REQ_EVT",
+    "BOND_REQ_EVT",
+    "DISCARD_SEC_REQ_EVT",
+    "PUBLIC_KEY_EXCHANGE_REQ_EVT",
+    "LOCAL_PUBLIC_KEY_CRTD_EVT",
+    "BOTH_PUBLIC_KEYS_RCVD_EVT",
+    "SEC_CONN_DHKEY_COMPLETE_EVT",
+    "HAVE_LOCAL_NONCE_EVT",
+    "SEC_CONN_PHASE1_CMPLT_EVT",
+    "SEC_CONN_CALC_NC_EVT",
+    "SEC_CONN_DISPLAY_NC_EVT",
+    "SEC_CONN_OK_EVT",
+    "SEC_CONN_2_DHCK_CHECKS_PRESENT_EVT",
+    "SEC_CONN_KEY_READY_EVT",
+    "KEYPRESS_NOTIFICATION_EVT",
+    "SEC_CONN_OOB_DATA_EVT",
+    "CREATE_LOCAL_SEC_CONN_OOB_DATA_EVT",
+    "OUT_OF_RANGE_EVT"
+};
+
+const char *smp_get_event_name(tSMP_EVENT event);
+const char *smp_get_state_name(tSMP_STATE state);
+
+#define SMP_SM_IGNORE       0
+#define SMP_NUM_ACTIONS     2
+#define SMP_SME_NEXT_STATE  2
+#define SMP_SM_NUM_COLS     3
+
+typedef const UINT8(*tSMP_SM_TBL)[SMP_SM_NUM_COLS];
+
+enum
+{
+    SMP_PROC_SEC_REQ,
+    SMP_SEND_PAIR_REQ,
+    SMP_SEND_PAIR_RSP,
+    SMP_SEND_CONFIRM,
+    SMP_SEND_PAIR_FAIL,
+    SMP_SEND_RAND,
+    SMP_SEND_ENC_INFO,
+    SMP_SEND_ID_INFO,
+    SMP_SEND_LTK_REPLY,
+    SMP_PROC_PAIR_CMD,
+    SMP_PROC_PAIR_FAIL,
+    SMP_PROC_CONFIRM,
+    SMP_PROC_RAND,
+    SMP_PROC_ENC_INFO,
+    SMP_PROC_MASTER_ID,
+    SMP_PROC_ID_INFO,
+    SMP_PROC_ID_ADDR,
+    SMP_PROC_SRK_INFO,
+    SMP_PROC_SEC_GRANT,
+    SMP_PROC_SL_KEY,
+    SMP_PROC_COMPARE,
+    SMP_PROC_IO_RSP,
+    SMP_GENERATE_COMPARE,
+    SMP_GENERATE_CONFIRM,
+    SMP_GENERATE_STK,
+    SMP_KEY_DISTRIBUTE,
+    SMP_START_ENC,
+    SMP_PAIRING_CMPL,
+    SMP_DECIDE_ASSO_MODEL,
+    SMP_SEND_APP_CBACK,
+    SMP_CHECK_AUTH_REQ,
+    SMP_PAIR_TERMINATE,
+    SMP_ENC_CMPL,
+    SMP_PROC_DISCARD,
+    SMP_CREATE_PRIVATE_KEY,
+    SMP_USE_OOB_PRIVATE_KEY,
+    SMP_SEND_PAIR_PUBLIC_KEY,
+    SMP_PROCESS_PAIR_PUBLIC_KEY,
+    SMP_HAVE_BOTH_PUBLIC_KEYS,
+    SMP_START_SEC_CONN_PHASE1,
+    SMP_PROCESS_LOCAL_NONCE,
+    SMP_SEND_COMMITMENT,
+    SMP_PROCESS_PAIRING_COMMITMENT,
+    SMP_PROCESS_PEER_NONCE,
+    SMP_CALCULATE_LOCAL_DHKEY_CHECK,
+    SMP_SEND_DHKEY_CHECK,
+    SMP_PROCESS_DHKEY_CHECK,
+    SMP_CALCULATE_PEER_DHKEY_CHECK,
+    SMP_MATCH_DHKEY_CHECKS,
+    SMP_CALCULATE_NUMERIC_COMPARISON_DISPLAY_NUMBER,
+    SMP_MOVE_TO_SEC_CONN_PHASE2,
+    SMP_PH2_DHKEY_CHECKS_ARE_PRESENT,
+    SMP_WAIT_FOR_BOTH_PUBLIC_KEYS,
+    SMP_START_PASSKEY_VERIFICATION,
+    SMP_SEND_KEYPRESS_NOTIFICATION,
+    SMP_PROCESS_KEYPRESS_NOTIFICATION,
+    SMP_PROCESS_SECURE_CONNECTION_OOB_DATA,
+    SMP_SET_LOCAL_OOB_KEYS,
+    SMP_SET_LOCAL_OOB_RAND_COMMITMENT,
+    SMP_IDLE_TERMINATE,
+    SMP_FAST_CONN_PARAM,
+    SMP_SM_NO_ACTION
+};
+
+static const tSMP_ACT smp_sm_action[] =
+{
+    smp_proc_sec_req,
+    smp_send_pair_req,
+    smp_send_pair_rsp,
+    smp_send_confirm,
+    smp_send_pair_fail,
+    smp_send_rand,
+    smp_send_enc_info,
+    smp_send_id_info,
+    smp_send_ltk_reply,
+    smp_proc_pair_cmd,
+    smp_proc_pair_fail,
+    smp_proc_confirm,
+    smp_proc_rand,
+    smp_proc_enc_info,
+    smp_proc_master_id,
+    smp_proc_id_info,
+    smp_proc_id_addr,
+    smp_proc_srk_info,
+    smp_proc_sec_grant,
+    smp_proc_sl_key,
+    smp_proc_compare,
+    smp_process_io_response,
+    smp_generate_compare,
+    smp_generate_srand_mrand_confirm,
+    smp_generate_stk,
+    smp_key_distribution,
+    smp_start_enc,
+    smp_pairing_cmpl,
+    smp_decide_association_model,
+    smp_send_app_cback,
+    smp_check_auth_req,
+    smp_pair_terminate,
+    smp_enc_cmpl,
+    smp_proc_discard,
+    smp_create_private_key,
+    smp_use_oob_private_key,
+    smp_send_pair_public_key,
+    smp_process_pairing_public_key,
+    smp_both_have_public_keys,
+    smp_start_secure_connection_phase1,
+    smp_process_local_nonce,
+    smp_send_commitment,
+    smp_process_pairing_commitment,
+    smp_process_peer_nonce,
+    smp_calculate_local_dhkey_check,
+    smp_send_dhkey_check,
+    smp_process_dhkey_check,
+    smp_calculate_peer_dhkey_check,
+    smp_match_dhkey_checks,
+    smp_calculate_numeric_comparison_display_number,
+    smp_move_to_secure_connections_phase2,
+    smp_phase_2_dhkey_checks_are_present,
+    smp_wait_for_both_public_keys,
+    smp_start_passkey_verification,
+    smp_send_keypress_notification,
+    smp_process_keypress_notification,
+    smp_process_secure_connection_oob_data,
+    smp_set_local_oob_keys,
+    smp_set_local_oob_random_commitment,
+    smp_idle_terminate,
+    smp_fast_conn_param
+};
+
+/************ SMP Master FSM State/Event Indirection Table **************/
+static const UINT8 smp_master_entry_map[][SMP_STATE_MAX] =
+{
+/* state name:             Idle WaitApp SecReq Pair   Wait Confirm Rand PublKey SCPhs1  Wait  Wait  SCPhs2  Wait   DHKChk Enc   Bond  CrLocSc
+                                 Rsp    Pend   ReqRsp Cfm               Exch    Strt    Cmtm  Nonce Strt    DHKChk        Pend  Pend  OobData   */
+/* PAIR_REQ             */{ 0,    0,     0,      0,     0,   0,    0,   0,      0,      0,    0,    0,      0,     0,     0,    0,     0   },
+/* PAIR_RSP             */{ 0,    0,     0,      1,     0,   0,    0,   0,      0,      0,    0,    0,      0,     0,     0,    0,     0   },
+/* CONFIRM              */{ 0,    0,     0,      0,     0,   1,    0,   0,      0,      0,    0,    0,      0,     0,     0,    0,     0   },
+/* RAND                 */{ 0,    0,     0,      0,     0,   0,    1,   0,      0,      0,    1,    0,      0,     0,     0,    0,     0   },
+/* PAIR_FAIL            */{ 0,    0x81,  0,      0x81,  0x81,0x81, 0x81,0x81,   0x81,   0x81, 0x81, 0x81,   0x81,  0x81,  0,    0,     0   },
+/* ENC_INFO             */{ 0,    0,     0,      0,     0,   0,    0,   0,      0,      0,    0,    0,      0,     0,     0,    1,     0   },
+/* MASTER_ID            */{ 0,    0,     0,      0,     0,   0,    0,   0,      0,      0,    0,    0,      0,     0,     0,    4,     0   },
+/* ID_INFO              */{ 0,    0,     0,      0,     0,   0,    0,   0,      0,      0,    0,    0,      0,     0,     0,    2,     0   },
+/* ID_ADDR              */{ 0,    0,     0,      0,     0,   0,    0,   0,      0,      0,    0,    0,      0,     0,     0,    5,     0   },
+/* SIGN_INFO            */{ 0,    0,     0,      0,     0,   0,    0,   0,      0,      0,    0,    0,      0,     0,     0,    3,     0   },
+/* SEC_REQ              */{ 2,    0,     0,      0,     0,   0,    0,   0,      0,      0,    0,    0,      0,     0,     0,    0,     0   },
+/* PAIR_PUBLIC_KEY      */{ 0,    0,     0,      0,     0,   0,    0,   2,      0,      0,    0,    0,      0,     0,     0,    0,     0   },
+/* PAIR_DHKEY_CHCK      */{ 0,    0,     0,      0,     0,   0,    0,   0,      0,      0,    0,    0,      1,     0,     0,    0,     0   },
+/* PAIR_KEYPR_NOTIF     */{ 0,    8,     0,      0,     0,   0,    0,   0,      5,      2,    0,    0,      0,     0,     0,    0,     0   },
+/* PAIR_COMMITM         */{ 0,    0,     0,      0,     0,   0,    0,   0,      6,      1,    0,    0,      0,     0,     0,    0,     0   },
+/* KEY_READY            */{ 0,    3,     0,      3,     1,   0,    2,   0,      4,      0,    0,    0,      0,     0,     1,    6,     0   },
+/* ENC_CMPL             */{ 0,    0,     0,      0,     0,   0,    0,   0,      0,      0,    0,    0,      0,     0,     2,    0,     0   },
+/* L2C_CONN             */{ 1,    0,     0,      0,     0,   0,    0,   0,      0,      0,    0,    0,      0,     0,     0,    0,     0   },
+/* L2C_DISC             */{ 3,    0x83,  0,      0x83,  0x83,0x83, 0x83,0x83,   0x83,   0x83, 0x83, 0x83,   0x83,  0x83,  0x83, 0x83,  0   },
+/* IO_RSP               */{ 0,    2,     0,      0,     0,   0,    0,   0,      0,      0,    0,    0,      0,     0,     0,    0,     0   },
+/* SEC_GRANT            */{ 0,    1,     0,      0,     0,   0,    0,   0,      0,      0,    0,    0,      0,     0,     0,    0,     0   },
+/* TK_REQ               */{ 0,    0,     0,      2,     0,   0,    0,   0,      3,      0,    0,    0,      0,     0,     0,    0,     0   },
+/* AUTH_CMPL            */{ 4,    0x82,  0,      0x82,  0x82,0x82, 0x82,0x82,   0x82,   0x82, 0x82, 0x82,   0x82,  0x82,  0x82, 0x82,  0   },
+/* ENC_REQ              */{ 0,    4,     0,      0,     0,   0,    3,   0,      0,      0,    0,    0,      0,     2,     0,    0,     0   },
+/* BOND_REQ             */{ 0,    0,     0,      0,     0,   0,    0,   0,      0,      0,    0,    0,      0,     0,     3,    0,     0   },
+/* DISCARD_SEC_REQ      */{ 0,    5,     0,      0,     0,   0,    0,   0,      0,      0,    0,    0,      0,     0,     3,    0,     0   },
+/* PUBL_KEY_EXCH_REQ    */{ 0,    0,     0,      4,     0,   0,    0,   0,      0,      0,    0,    0,      0,     0,     0,    0,     0   },
+/* LOC_PUBL_KEY_CRTD    */{ 0,    0,     0,      0,     0,   0,    0,   1,      0,      0,    0,    0,      0,     0,     0,    0,     1   },
+/* BOTH_PUBL_KEYS_RCVD  */{ 0,    0,     0,      0,     0,   0,    0,   3,      0,      0,    0,    0,      0,     0,     0,    0,     0   },
+/* SC_DHKEY_CMPLT       */{ 0,    0,     0,      0,     0,   0,    0,   0,      1,      0,    0,    0,      0,     0,     0,    0,     0   },
+/* HAVE_LOC_NONCE       */{ 0,    0,     0,      0,     0,   0,    0,   0,      2,      0,    0,    0,      0,     0,     0,    0,     2   },
+/* SC_PHASE1_CMPLT      */{ 0,    0,     0,      0,     0,   0,    0,   0,      0,      0,    0,    1,      0,     0,     0,    0,     0   },
+/* SC_CALC_NC           */{ 0,    0,     0,      0,     0,   0,    0,   0,      0,      0,    2,    0,      0,     0,     0,    0,     0   },
+/* SC_DSPL_NC           */{ 0,    0,     0,      0,     0,   0,    0,   0,      0,      0,    3,    0,      0,     0,     0,    0,     0   },
+/* SC_NC_OK             */{ 0,    6,     0,      0,     0,   0,    0,   0,      0,      0,    0,    0,      0,     0,     0,    0,     0   },
+/* SC_2_DHCK_CHKS_PRES  */{ 0,    0,     0,      0,     0,   0,    0,   0,      0,      0,    0,    0,      0,     0,     0,    0,     0   },
+/* SC_KEY_READY         */{ 0,    7,     0,      0,     0,   0,    0,   0,      0,      0,    0,    0,      0,     1,     0,    0,     0   },
+/* KEYPR_NOTIF          */{ 0,    9,     0,      0,     0,   0,    0,   0,      0,      0,    0,    0,      0,     0,     0,    0,     0   },
+/* SC_OOB_DATA          */{ 0,    10,    0,      0,     0,   0,    0,   0,      0,      0,    0,    0,      0,     0,     0,    0,     0   },
+/* CR_LOC_SC_OOB_DATA   */{ 5,    0,     0,      0,     0,   0,    0,   0,      0,      0,    0,    0,      0,     0,     0,    0,     0   },
+};
+
+static const UINT8 smp_all_table[][SMP_SM_NUM_COLS] =
+{
+/*                       Event                     Action                 Next State */
+/* PAIR_FAIL */          {SMP_PROC_PAIR_FAIL,      SMP_PAIRING_CMPL, SMP_STATE_IDLE},
+/* AUTH_CMPL */          {SMP_SEND_PAIR_FAIL,      SMP_PAIRING_CMPL, SMP_STATE_IDLE},
+/* L2C_DISC  */          {SMP_PAIR_TERMINATE,      SMP_SM_NO_ACTION, SMP_STATE_IDLE}
+};
+
+static const UINT8 smp_master_idle_table[][SMP_SM_NUM_COLS] =
+{
+/*                   Event                  Action               Next State */
+/* L2C_CONN */      {SMP_SEND_APP_CBACK,     SMP_SM_NO_ACTION,   SMP_STATE_WAIT_APP_RSP},
+/* SEC_REQ  */      {SMP_PROC_SEC_REQ,       SMP_SEND_APP_CBACK, SMP_STATE_WAIT_APP_RSP},
+/* L2C_DISC  */     {SMP_IDLE_TERMINATE,     SMP_SM_NO_ACTION, SMP_STATE_IDLE},
+/* AUTH_CMPL */     {SMP_PAIRING_CMPL,       SMP_SM_NO_ACTION, SMP_STATE_IDLE}
+/* CR_LOC_SC_OOB_DATA   */ ,{SMP_CREATE_PRIVATE_KEY, SMP_SM_NO_ACTION, SMP_STATE_CREATE_LOCAL_SEC_CONN_OOB_DATA}
+
+};
+
+static const UINT8 smp_master_wait_for_app_response_table[][SMP_SM_NUM_COLS] =
+{
+/*                            Event                Action               Next State */
+/* SEC_GRANT            */ {SMP_PROC_SEC_GRANT, SMP_SEND_APP_CBACK, SMP_STATE_WAIT_APP_RSP},
+/* IO_RSP               */ {SMP_SEND_PAIR_REQ, SMP_FAST_CONN_PARAM, SMP_STATE_PAIR_REQ_RSP},
+
+                    /* TK ready */
+/* KEY_READY            */ {SMP_GENERATE_CONFIRM, SMP_SM_NO_ACTION,   SMP_STATE_WAIT_CONFIRM},
+
+                    /* start enc mode setup */
+/* ENC_REQ              */ { SMP_START_ENC, SMP_FAST_CONN_PARAM, SMP_STATE_ENCRYPTION_PENDING},
+/* DISCARD_SEC_REQ      */ { SMP_PROC_DISCARD, SMP_SM_NO_ACTION, SMP_STATE_IDLE}
+/* user confirms NC 'OK', i.e. phase 1 is completed */
+/* SC_NC_OK             */,{ SMP_MOVE_TO_SEC_CONN_PHASE2, SMP_SM_NO_ACTION, SMP_STATE_SEC_CONN_PHS2_START},
+/* user-provided passkey is rcvd */
+/* SC_KEY_READY  */ { SMP_START_PASSKEY_VERIFICATION, SMP_SM_NO_ACTION, SMP_STATE_SEC_CONN_PHS1_START},
+/* PAIR_KEYPR_NOTIF */ { SMP_PROCESS_KEYPRESS_NOTIFICATION, SMP_SEND_APP_CBACK, SMP_STATE_WAIT_APP_RSP},
+/* KEYPR_NOTIF          */ { SMP_SEND_KEYPRESS_NOTIFICATION, SMP_SM_NO_ACTION, SMP_STATE_WAIT_APP_RSP},
+/* SC_OOB_DATA      */ { SMP_USE_OOB_PRIVATE_KEY, SMP_SM_NO_ACTION, SMP_STATE_PUBLIC_KEY_EXCH}
+};
+
+static const UINT8 smp_master_pair_request_response_table[][SMP_SM_NUM_COLS] =
+{
+/*               Event                  Action                  Next State */
+/* PAIR_RSP */ { SMP_PROC_PAIR_CMD,     SMP_SM_NO_ACTION, SMP_STATE_PAIR_REQ_RSP},
+/* TK_REQ   */ { SMP_SEND_APP_CBACK,    SMP_SM_NO_ACTION, SMP_STATE_WAIT_APP_RSP},
+
+                    /* TK ready */
+/* KEY_READY */{ SMP_GENERATE_CONFIRM,  SMP_SM_NO_ACTION, SMP_STATE_WAIT_CONFIRM}
+/* PUBL_KEY_EXCH_REQ    */,{ SMP_CREATE_PRIVATE_KEY, SMP_SM_NO_ACTION, SMP_STATE_PUBLIC_KEY_EXCH}
+};
+
+static const UINT8 smp_master_wait_for_confirm_table[][SMP_SM_NUM_COLS] =
+{
+/*              Event                   Action          Next State */
+/* KEY_READY*/ {SMP_SEND_CONFIRM,     SMP_SM_NO_ACTION, SMP_STATE_CONFIRM}/* CONFIRM ready */
+};
+
+static const UINT8 smp_master_confirm_table[][SMP_SM_NUM_COLS] =
+{
+/*               Event                  Action                 Next State */
+/* CONFIRM  */ { SMP_PROC_CONFIRM, SMP_SEND_RAND, SMP_STATE_RAND}
+};
+
+static const UINT8 smp_master_rand_table[][SMP_SM_NUM_COLS] =
+{
+/*               Event                  Action                   Next State */
+/* RAND     */ { SMP_PROC_RAND,         SMP_GENERATE_COMPARE, SMP_STATE_RAND},
+/* KEY_READY*/ { SMP_PROC_COMPARE,      SMP_SM_NO_ACTION,   SMP_STATE_RAND},  /* Compare ready */
+/* ENC_REQ  */ { SMP_GENERATE_STK,      SMP_SM_NO_ACTION, SMP_STATE_ENCRYPTION_PENDING}
+};
+
+static const UINT8 smp_master_public_key_exchange_table[][SMP_SM_NUM_COLS] =
+{
+/*                          Event                        Action              Next State */
+/* LOC_PUBL_KEY_CRTD    */{ SMP_SEND_PAIR_PUBLIC_KEY, SMP_SM_NO_ACTION, SMP_STATE_PUBLIC_KEY_EXCH},
+/* PAIR_PUBLIC_KEY      */{ SMP_PROCESS_PAIR_PUBLIC_KEY, SMP_SM_NO_ACTION, SMP_STATE_PUBLIC_KEY_EXCH},
+/* BOTH_PUBL_KEYS_RCVD  */{ SMP_HAVE_BOTH_PUBLIC_KEYS, SMP_SM_NO_ACTION, SMP_STATE_SEC_CONN_PHS1_START},
+};
+
+static const UINT8 smp_master_sec_conn_phs1_start_table[][SMP_SM_NUM_COLS] =
+{
+/*                          Event                  Action                Next State */
+/* SC_DHKEY_CMPLT       */{ SMP_START_SEC_CONN_PHASE1, SMP_SM_NO_ACTION, SMP_STATE_SEC_CONN_PHS1_START},
+/* HAVE_LOC_NONCE       */{ SMP_PROCESS_LOCAL_NONCE, SMP_SM_NO_ACTION, SMP_STATE_WAIT_COMMITMENT},
+/* TK_REQ               */{ SMP_SEND_APP_CBACK,    SMP_SM_NO_ACTION, SMP_STATE_WAIT_APP_RSP},
+/* SMP_MODEL_SEC_CONN_PASSKEY_DISP model, passkey is sent up to display,*/
+/* It's time to start commitment calculation */
+/* KEY_READY            */{ SMP_START_PASSKEY_VERIFICATION, SMP_SM_NO_ACTION, SMP_STATE_SEC_CONN_PHS1_START},
+/* PAIR_KEYPR_NOTIF  */{ SMP_PROCESS_KEYPRESS_NOTIFICATION,  SMP_SEND_APP_CBACK, SMP_STATE_SEC_CONN_PHS1_START},
+/* PAIR_COMMITM  */{ SMP_PROCESS_PAIRING_COMMITMENT, SMP_SM_NO_ACTION, SMP_STATE_SEC_CONN_PHS1_START},
+};
+
+static const UINT8 smp_master_wait_commitment_table[][SMP_SM_NUM_COLS] =
+{
+/*                          Event                  Action                 Next State */
+/* PAIR_COMMITM         */{ SMP_PROCESS_PAIRING_COMMITMENT, SMP_SEND_RAND, SMP_STATE_WAIT_NONCE},
+/* PAIR_KEYPR_NOTIF */{ SMP_PROCESS_KEYPRESS_NOTIFICATION, SMP_SEND_APP_CBACK, SMP_STATE_WAIT_COMMITMENT},
+};
+
+static const UINT8 smp_master_wait_nonce_table[][SMP_SM_NUM_COLS] =
+{
+/*                          Event                  Action                 Next State */
+/* peer nonce is received */
+/* RAND                 */{SMP_PROC_RAND,  SMP_PROCESS_PEER_NONCE, SMP_STATE_SEC_CONN_PHS2_START},
+/* NC model, time to calculate number for NC */
+/* SC_CALC_NC           */{SMP_CALCULATE_NUMERIC_COMPARISON_DISPLAY_NUMBER, SMP_SM_NO_ACTION, SMP_STATE_WAIT_NONCE},
+/* NC model, time to display calculated number for NC to the user */
+/* SC_DSPL_NC           */{SMP_SEND_APP_CBACK, SMP_SM_NO_ACTION, SMP_STATE_WAIT_APP_RSP},
+};
+
+static const UINT8 smp_master_sec_conn_phs2_start_table[][SMP_SM_NUM_COLS] =
+{
+/*                          Event                  Action                 Next State */
+/* SC_PHASE1_CMPLT */{SMP_CALCULATE_LOCAL_DHKEY_CHECK, SMP_SEND_DHKEY_CHECK, SMP_STATE_WAIT_DHK_CHECK},
+};
+
+static const UINT8 smp_master_wait_dhk_check_table[][SMP_SM_NUM_COLS] =
+{
+/*                          Event                  Action                 Next State */
+/* PAIR_DHKEY_CHCK  */{SMP_PROCESS_DHKEY_CHECK, SMP_CALCULATE_PEER_DHKEY_CHECK, SMP_STATE_DHK_CHECK},
+};
+
+static const UINT8 smp_master_dhk_check_table[][SMP_SM_NUM_COLS] =
+{
+/*                          Event                  Action                 Next State */
+/* locally calculated peer dhkey check is ready -> compare it withs DHKey Check actually received from peer */
+/* SC_KEY_READY         */{SMP_MATCH_DHKEY_CHECKS, SMP_SM_NO_ACTION, SMP_STATE_DHK_CHECK},
+/* locally calculated peer dhkey check is ready -> calculate STK, go to sending */
+/* HCI LE Start Encryption command */
+/* ENC_REQ              */{SMP_GENERATE_STK, SMP_SM_NO_ACTION, SMP_STATE_ENCRYPTION_PENDING},
+};
+
+static const UINT8 smp_master_enc_pending_table[][SMP_SM_NUM_COLS] =
+{
+/*                          Event                  Action                 Next State */
+/* STK ready */
+/* KEY_READY */ { SMP_START_ENC,        SMP_SM_NO_ACTION, SMP_STATE_ENCRYPTION_PENDING},
+/* ENCRYPTED */ { SMP_CHECK_AUTH_REQ,   SMP_SM_NO_ACTION, SMP_STATE_ENCRYPTION_PENDING},
+/* BOND_REQ  */ { SMP_KEY_DISTRIBUTE,   SMP_SM_NO_ACTION, SMP_STATE_BOND_PENDING}
+};
+static const UINT8 smp_master_bond_pending_table[][SMP_SM_NUM_COLS] =
+{
+/*                          Event                  Action                 Next State */
+/* ENC_INFO */ { SMP_PROC_ENC_INFO,     SMP_SM_NO_ACTION, SMP_STATE_BOND_PENDING},
+/* ID_INFO  */ { SMP_PROC_ID_INFO,      SMP_SM_NO_ACTION, SMP_STATE_BOND_PENDING},
+/* SIGN_INFO*/ { SMP_PROC_SRK_INFO,     SMP_SM_NO_ACTION, SMP_STATE_BOND_PENDING},
+/* MASTER_ID*/ { SMP_PROC_MASTER_ID,    SMP_SM_NO_ACTION, SMP_STATE_BOND_PENDING},
+/* ID_ADDR  */ { SMP_PROC_ID_ADDR,      SMP_SM_NO_ACTION, SMP_STATE_BOND_PENDING},
+/* KEY_READY */{SMP_SEND_ENC_INFO,      SMP_SM_NO_ACTION, SMP_STATE_BOND_PENDING} /* LTK ready */
+};
+
+static const UINT8 smp_master_create_local_sec_conn_oob_data[][SMP_SM_NUM_COLS] =
+{
+/*                       Event                   Action            Next State */
+/* LOC_PUBL_KEY_CRTD */ {SMP_SET_LOCAL_OOB_KEYS,   SMP_SM_NO_ACTION, SMP_STATE_CREATE_LOCAL_SEC_CONN_OOB_DATA},
+/* HAVE_LOC_NONCE    */ {SMP_SET_LOCAL_OOB_RAND_COMMITMENT, SMP_SM_NO_ACTION, SMP_STATE_IDLE}
+};
+
+
+/************ SMP Slave FSM State/Event Indirection Table **************/
+static const UINT8 smp_slave_entry_map[][SMP_STATE_MAX] =
+{
+/* state name:             Idle WaitApp SecReq Pair   Wait Confirm Rand PublKey SCPhs1  Wait  Wait  SCPhs2  Wait   DHKChk Enc   Bond  CrLocSc
+                                 Rsp    Pend   ReqRsp Cfm               Exch    Strt    Cmtm  Nonce Strt    DHKChk        Pend  Pend  OobData   */
+/* PAIR_REQ             */{ 2,    0,     1,      0,     0,   0,    0,   0,      0,      0,    0,    0,      0,     0,     0,    0,     0   },
+/* PAIR_RSP             */{ 0,    0,     0,      0,     0,   0,    0,   0,      0,      0,    0,    0,      0,     0,     0,    0,     0   },
+/* CONFIRM              */{ 0,    4,     0,      1,     1,   0,    0,   0,      0,      0,    0,    0,      0,     0,     0,    0,     0   },
+/* RAND                 */{ 0,    0,     0,      0,     0,   1,    2,   0,      0,      0,    1,    0,      0,     0,     0,    0,     0   },
+/* PAIR_FAIL            */{ 0,    0x81,  0x81,   0x81,  0x81,0x81, 0x81,0x81,   0x81,   0x81, 0x81, 0x81,   0x81,  0x81,  0x81, 0,     0   },
+/* ENC_INFO             */{ 0,    0,     0,      0,     0,   0,    0,   0,      0,      0,    0,    0,      0,     0,     0,    3,     0   },
+/* MASTER_ID            */{ 0,    0,     0,      0,     0,   0,    0,   0,      0,      0,    0,    0,      0,     0,     0,    5,     0   },
+/* ID_INFO              */{ 0,    0,     0,      0,     0,   0,    0,   0,      0,      0,    0,    0,      0,     0,     0,    4,     0   },
+/* ID_ADDR              */{ 0,    0,     0,      0,     0,   0,    0,   0,      0,      0,    0,    0,      0,     0,     0,    6,     0   },
+/* SIGN_INFO            */{ 0,    0,     0,      0,     0,   0,    0,   0,      0,      0,    0,    0,      0,     0,     0,    2,     0   },
+/* SEC_REQ              */{ 0,    0,     0,      0,     0,   0,    0,   0,      0,      0,    0,    0,      0,     0,     0,    0,     0   },
+/* PAIR_PUBLIC_KEY      */{ 0,    0,     0,      5,     0,   0,    0,   2,      0,      0,    0,    0,      0,     0,     0,    0,     0   },
+/* PAIR_DHKEY_CHCK      */{ 0,    5,     0,      0,     0,   0,    0,   0,      0,      0,    0,    2,      1,     2,     0,    0,     0   },
+/* PAIR_KEYPR_NOTIF     */{ 0,    9,     0,      0,     0,   0,    0,   0,      5,      2,    0,    0,      0,     0,     0,    0,     0   },
+/* PAIR_COMMITM         */{ 0,    8,     0,      0,     0,   0,    0,   0,      6,      1,    0,    0,      0,     0,     0,    0,     0   },
+/* KEY_READY            */{ 0,    3,     0,      3,     2,   2,    1,   0,      4,      0,    0,    0,      0,     0,     2,    1,     0   },
+/* ENC_CMPL             */{ 0,    0,     2,      0,     0,   0,    0,   0,      0,      0,    0,    0,      0,     0,     3,    0,     0   },
+/* L2C_CONN             */{ 1,    0,     0,      0,     0,   0,    0,   0,      0,      0,    0,    0,      0,     0,     0,    0,     0   },
+/* L2C_DISC             */{ 0,    0x83,  0x83,   0x83,  0x83,0x83, 0x83,0x83,   0x83,   0x83, 0x83, 0x83,   0x83,  0x83,  0x83, 0x83,  0   },
+/* IO_RSP               */{ 0,    1,     0,      0,     0,   0,    0,   0,      0,      0,    0,    0,      0,     0,     0,    0,     0   },
+/* SEC_GRANT            */{ 0,    2,     0,      0,     0,   0,    0,   0,      0,      0,    0,    0,      0,     0,     0,    0,     0   },
+/* TK_REQ               */{ 0,    0,     0,      2,     0,   0,    0,   0,      3,      0,    0,    0,      0,     0,     0,    0,     0   },
+/* AUTH_CMPL            */{ 0,    0x82,  0x82,   0x82,  0x82,0x82, 0x82,0x82,   0x82,   0x82, 0x82, 0x82,   0x82,  0x82,  0x82, 0x82,  0   },
+/* ENC_REQ              */{ 0,    0,     0,      0,     0,   0,    0,   0,      0,      0,    0,    0,      0,     0,     1,    0,     0   },
+/* BOND_REQ             */{ 0,    0,     0,      0,     0,   0,    0,   0,      0,      0,    0,    0,      0,     0,     4,    0,     0   },
+/* DISCARD_SEC_REQ      */{ 0,    0,     0,      0,     0,   0,    0,   0,      0,      0,    0,    0,      0,     0,     0,    0,     0   },
+/* PUBL_KEY_EXCH_REQ    */{ 0,    0,     0,      4,     0,   0,    0,   0,      0,      0,    0,    0,      0,     0,     0,    0,     0   },
+/* LOC_PUBL_KEY_CRTD    */{ 0,    0,     0,      0,     0,   0,    0,   1,      0,      0,    0,    0,      0,     0,     0,    0,     1   },
+/* BOTH_PUBL_KEYS_RCVD  */{ 0,    0,     0,      0,     0,   0,    0,   3,      0,      0,    0,    0,      0,     0,     0,    0,     0   },
+/* SC_DHKEY_CMPLT       */{ 0,    0,     0,      0,     0,   0,    0,   0,      1,      0,    0,    0,      0,     0,     0,    0,     0   },
+/* HAVE_LOC_NONCE       */{ 0,    0,     0,      0,     0,   0,    0,   0,      2,      0,    0,    0,      0,     0,     0,    0,     2   },
+/* SC_PHASE1_CMPLT      */{ 0,    0,     0,      0,     0,   0,    0,   0,      0,      0,    0,    1,      0,     0,     0,    0,     0   },
+/* SC_CALC_NC           */{ 0,    0,     0,      0,     0,   0,    0,   0,      0,      0,    2,    0,      0,     0,     0,    0,     0   },
+/* SC_DSPL_NC           */{ 0,    0,     0,      0,     0,   0,    0,   0,      0,      0,    3,    0,      0,     0,     0,    0,     0   },
+/* SC_NC_OK             */{ 0,    6,     0,      0,     0,   0,    0,   0,      0,      0,    0,    0,      0,     0,     0,    0,     0   },
+/* SC_2_DHCK_CHKS_PRES  */{ 0,    0,     0,      0,     0,   0,    0,   0,      0,      0,    0,    0,      2,     0,     0,    0,     0   },
+/* SC_KEY_READY         */{ 0,    7,     0,      0,     0,   0,    0,   0,      0,      0,    0,    0,      0,     1,     0,    0,     0   },
+/* KEYPR_NOTIF          */{ 0,    10,    0,      0,     0,   0,    0,   0,      0,      0,    0,    0,      0,     0,     0,    0,     0   },
+/* SC_OOB_DATA          */{ 0,    11,    0,      0,     0,   0,    0,   0,      0,      0,    0,    0,      0,     0,     0,    0,     0   },
+/* CR_LOC_SC_OOB_DATA   */{ 3,    0,     0,      0,     0,   0,    0,   0,      0,      0,    0,    0,      0,     0,     0,    0,     0   },
+};
+
+static const UINT8 smp_slave_idle_table[][SMP_SM_NUM_COLS] =
+{
+/*                   Event                 Action                Next State */
+/* L2C_CONN */      {SMP_SEND_APP_CBACK,  SMP_SM_NO_ACTION,      SMP_STATE_WAIT_APP_RSP},
+/* PAIR_REQ */      {SMP_PROC_PAIR_CMD,   SMP_SEND_APP_CBACK,     SMP_STATE_WAIT_APP_RSP}
+/* CR_LOC_SC_OOB_DATA   */ ,{SMP_CREATE_PRIVATE_KEY, SMP_SM_NO_ACTION, SMP_STATE_CREATE_LOCAL_SEC_CONN_OOB_DATA}
+};
+
+static const UINT8 smp_slave_wait_for_app_response_table [][SMP_SM_NUM_COLS] =
+{
+/*               Event                   Action                 Next State */
+/* IO_RSP    */ {SMP_PROC_IO_RSP,       SMP_FAST_CONN_PARAM, SMP_STATE_PAIR_REQ_RSP},
+/* SEC_GRANT */ {SMP_PROC_SEC_GRANT,    SMP_SEND_APP_CBACK, SMP_STATE_WAIT_APP_RSP},
+
+                        /* TK ready */
+/* KEY_READY */ {SMP_PROC_SL_KEY,   SMP_SM_NO_ACTION, SMP_STATE_WAIT_APP_RSP},
+/* CONFIRM   */ {SMP_PROC_CONFIRM,   SMP_SM_NO_ACTION, SMP_STATE_CONFIRM}
+/* DHKey Check from master is received before phase 1 is completed - race */
+/* PAIR_DHKEY_CHCK      */,{SMP_PROCESS_DHKEY_CHECK, SMP_SM_NO_ACTION,  SMP_STATE_WAIT_APP_RSP},
+/* user confirms NC 'OK', i.e. phase 1 is completed */
+/* SC_NC_OK             */ {SMP_MOVE_TO_SEC_CONN_PHASE2, SMP_SM_NO_ACTION,  SMP_STATE_SEC_CONN_PHS2_START},
+/* user-provided passkey is rcvd */
+/* SC_KEY_READY   */ {SMP_START_PASSKEY_VERIFICATION, SMP_SM_NO_ACTION, SMP_STATE_SEC_CONN_PHS1_START},
+/* PAIR_COMMITM   */ {SMP_PROCESS_PAIRING_COMMITMENT, SMP_SM_NO_ACTION, SMP_STATE_WAIT_APP_RSP},
+/* PAIR_KEYPR_NOTIF */ {SMP_PROCESS_KEYPRESS_NOTIFICATION, SMP_SEND_APP_CBACK, SMP_STATE_WAIT_APP_RSP},
+/* KEYPR_NOTIF */ {SMP_SEND_KEYPRESS_NOTIFICATION, SMP_SM_NO_ACTION, SMP_STATE_WAIT_APP_RSP},
+/* SC_OOB_DATA          */ {SMP_SEND_PAIR_RSP,    SMP_SM_NO_ACTION,    SMP_STATE_PAIR_REQ_RSP},
+};
+
+static const UINT8 smp_slave_sec_request_table[][SMP_SM_NUM_COLS] =
+{
+/*                          Event                  Action                 Next State */
+/* PAIR_REQ */{SMP_PROC_PAIR_CMD,       SMP_SM_NO_ACTION,       SMP_STATE_PAIR_REQ_RSP},
+/* ENCRYPTED*/{SMP_ENC_CMPL,            SMP_SM_NO_ACTION,       SMP_STATE_PAIR_REQ_RSP},
+};
+
+static const UINT8 smp_slave_pair_request_response_table[][SMP_SM_NUM_COLS] =
+{
+/*                          Event                  Action                 Next State */
+/* CONFIRM  */ {SMP_PROC_CONFIRM,       SMP_SM_NO_ACTION,   SMP_STATE_CONFIRM},
+/* TK_REQ   */ {SMP_SEND_APP_CBACK,     SMP_SM_NO_ACTION,   SMP_STATE_WAIT_APP_RSP},
+
+                    /* TK/Confirm ready */
+/* KEY_READY */{SMP_PROC_SL_KEY,        SMP_SM_NO_ACTION,   SMP_STATE_PAIR_REQ_RSP}
+/* PUBL_KEY_EXCH_REQ    */,{ SMP_CREATE_PRIVATE_KEY, SMP_SM_NO_ACTION, SMP_STATE_PUBLIC_KEY_EXCH},
+/* PAIR_PUBLIC_KEY      */ { SMP_PROCESS_PAIR_PUBLIC_KEY, SMP_SM_NO_ACTION,   SMP_STATE_PAIR_REQ_RSP},
+};
+
+static const UINT8 smp_slave_wait_confirm_table[][SMP_SM_NUM_COLS] =
+{
+/*                          Event                  Action                 Next State */
+/* CONFIRM  */ {SMP_PROC_CONFIRM,       SMP_SEND_CONFIRM,   SMP_STATE_CONFIRM},
+/* KEY_READY*/ {SMP_PROC_SL_KEY,        SMP_SM_NO_ACTION,   SMP_STATE_WAIT_CONFIRM}
+};
+
+static const UINT8 smp_slave_confirm_table[][SMP_SM_NUM_COLS] =
+{
+/*                          Event                  Action                 Next State */
+/* RAND     */ {SMP_PROC_RAND,          SMP_GENERATE_COMPARE,   SMP_STATE_RAND},
+
+                    /* TK/Confirm ready */
+/* KEY_READY*/ {SMP_PROC_SL_KEY,        SMP_SM_NO_ACTION,       SMP_STATE_CONFIRM}
+};
+
+static const UINT8 smp_slave_rand_table[][SMP_SM_NUM_COLS] =
+{
+/*                          Event                  Action                 Next State */
+/* KEY_READY */ {SMP_PROC_COMPARE,      SMP_SM_NO_ACTION,   SMP_STATE_RAND}, /* compare match */
+/* RAND      */ {SMP_SEND_RAND,         SMP_SM_NO_ACTION, SMP_STATE_ENCRYPTION_PENDING}
+};
+
+static const UINT8 smp_slave_public_key_exch_table[][SMP_SM_NUM_COLS] =
+{
+/*                          Event                  Action                 Next State */
+/* LOC_PUBL_KEY_CRTD  */{ SMP_WAIT_FOR_BOTH_PUBLIC_KEYS, SMP_SM_NO_ACTION, SMP_STATE_PUBLIC_KEY_EXCH},
+/* PAIR_PUBLIC_KEY      */{ SMP_PROCESS_PAIR_PUBLIC_KEY, SMP_SM_NO_ACTION, SMP_STATE_PUBLIC_KEY_EXCH},
+/* BOTH_PUBL_KEYS_RCVD */{ SMP_HAVE_BOTH_PUBLIC_KEYS, SMP_SM_NO_ACTION, SMP_STATE_SEC_CONN_PHS1_START},
+};
+
+static const UINT8 smp_slave_sec_conn_phs1_start_table[][SMP_SM_NUM_COLS] =
+{
+/*                          Event                  Action                 Next State */
+/* SC_DHKEY_CMPLT       */{ SMP_START_SEC_CONN_PHASE1, SMP_SM_NO_ACTION, SMP_STATE_SEC_CONN_PHS1_START},
+/* HAVE_LOC_NONCE       */{ SMP_PROCESS_LOCAL_NONCE,SMP_SM_NO_ACTION, SMP_STATE_WAIT_COMMITMENT},
+/* TK_REQ               */{ SMP_SEND_APP_CBACK,      SMP_SM_NO_ACTION, SMP_STATE_WAIT_APP_RSP},
+/* SMP_MODEL_SEC_CONN_PASSKEY_DISP model, passkey is sent up to display, it's time to start */
+/* commitment calculation */
+/* KEY_READY */{ SMP_START_PASSKEY_VERIFICATION, SMP_SM_NO_ACTION, SMP_STATE_SEC_CONN_PHS1_START},
+/* PAIR_KEYPR_NOTIF  */{ SMP_PROCESS_KEYPRESS_NOTIFICATION,SMP_SEND_APP_CBACK, SMP_STATE_SEC_CONN_PHS1_START},
+/*COMMIT*/{SMP_PROCESS_PAIRING_COMMITMENT, SMP_SM_NO_ACTION, SMP_STATE_SEC_CONN_PHS1_START},
+};
+
+static const UINT8 smp_slave_wait_commitment_table[][SMP_SM_NUM_COLS] =
+{
+/*                          Event                  Action                 Next State */
+/* PAIR_COMMITM  */{SMP_PROCESS_PAIRING_COMMITMENT, SMP_SEND_COMMITMENT,  SMP_STATE_WAIT_NONCE},
+/* PAIR_KEYPR_NOTIF */{SMP_PROCESS_KEYPRESS_NOTIFICATION, SMP_SEND_APP_CBACK, SMP_STATE_WAIT_COMMITMENT},
+};
+
+static const UINT8 smp_slave_wait_nonce_table[][SMP_SM_NUM_COLS] =
+{
+/*                          Event                  Action                 Next State */
+/* peer nonce is received */
+/* RAND           */{SMP_PROC_RAND, SMP_PROCESS_PEER_NONCE, SMP_STATE_SEC_CONN_PHS2_START},
+/* NC model, time to calculate number for NC */
+/* SC_CALC_NC  */{SMP_CALCULATE_NUMERIC_COMPARISON_DISPLAY_NUMBER, SMP_SM_NO_ACTION, SMP_STATE_WAIT_NONCE},
+/* NC model, time to display calculated number for NC to the user */
+/* SC_DSPL_NC   */{SMP_SEND_APP_CBACK, SMP_SM_NO_ACTION, SMP_STATE_WAIT_APP_RSP},
+};
+
+static const UINT8 smp_slave_sec_conn_phs2_start_table[][SMP_SM_NUM_COLS] =
+{
+/*                          Event                  Action                 Next State */
+/* SC_PHASE1_CMPLT */{SMP_CALCULATE_LOCAL_DHKEY_CHECK, SMP_PH2_DHKEY_CHECKS_ARE_PRESENT, SMP_STATE_WAIT_DHK_CHECK},
+/* DHKey Check from master is received before slave DHKey calculation is completed - race */
+/* PAIR_DHKEY_CHCK  */{SMP_PROCESS_DHKEY_CHECK, SMP_SM_NO_ACTION, SMP_STATE_SEC_CONN_PHS2_START},
+};
+
+static const UINT8 smp_slave_wait_dhk_check_table[][SMP_SM_NUM_COLS] =
+{
+/*                          Event                  Action                 Next State */
+/* PAIR_DHKEY_CHCK      */{SMP_PROCESS_DHKEY_CHECK, SMP_CALCULATE_PEER_DHKEY_CHECK, SMP_STATE_DHK_CHECK},
+/* DHKey Check from master was received before slave came to this state */
+/* SC_2_DHCK_CHKS_PRES  */{SMP_CALCULATE_PEER_DHKEY_CHECK, SMP_SM_NO_ACTION, SMP_STATE_DHK_CHECK},
+};
+
+static const UINT8 smp_slave_dhk_check_table[][SMP_SM_NUM_COLS] =
+{
+/*                          Event                  Action                 Next State */
+
+/* locally calculated peer dhkey check is ready -> compare it withs DHKey Check */
+/* actually received from peer */
+/* SC_KEY_READY         */{SMP_MATCH_DHKEY_CHECKS, SMP_SM_NO_ACTION, SMP_STATE_DHK_CHECK},
+
+/* dhkey checks match -> send local dhkey check to master, go to wait for HCI LE */
+/* Long Term Key Request Event */
+/* PAIR_DHKEY_CHCK      */{SMP_SEND_DHKEY_CHECK, SMP_SM_NO_ACTION, SMP_STATE_ENCRYPTION_PENDING},
+};
+
+static const UINT8 smp_slave_enc_pending_table[][SMP_SM_NUM_COLS] =
+{
+/*                          Event                  Action                 Next State */
+/* ENC_REQ   */ {SMP_GENERATE_STK,      SMP_SM_NO_ACTION, SMP_STATE_ENCRYPTION_PENDING},
+
+                    /* STK ready */
+/* KEY_READY */ {SMP_SEND_LTK_REPLY,    SMP_SM_NO_ACTION, SMP_STATE_ENCRYPTION_PENDING},
+/* ENCRYPTED */ {SMP_CHECK_AUTH_REQ,    SMP_SM_NO_ACTION, SMP_STATE_ENCRYPTION_PENDING},
+/* BOND_REQ  */ {SMP_KEY_DISTRIBUTE,    SMP_SM_NO_ACTION, SMP_STATE_BOND_PENDING}
+};
+static const UINT8 smp_slave_bond_pending_table[][SMP_SM_NUM_COLS] =
+{
+/*                          Event                  Action                 Next State */
+
+                /* LTK ready */
+/* KEY_READY */{ SMP_SEND_ENC_INFO,     SMP_SM_NO_ACTION, SMP_STATE_BOND_PENDING},
+
+                /* rev SRK */
+/* SIGN_INFO */{ SMP_PROC_SRK_INFO,     SMP_SM_NO_ACTION, SMP_STATE_BOND_PENDING},
+/* ENC_INFO */ { SMP_PROC_ENC_INFO,     SMP_SM_NO_ACTION, SMP_STATE_BOND_PENDING},
+/* ID_INFO  */ { SMP_PROC_ID_INFO,      SMP_SM_NO_ACTION,  SMP_STATE_BOND_PENDING},
+/* MASTER_ID*/ { SMP_PROC_MASTER_ID,    SMP_SM_NO_ACTION, SMP_STATE_BOND_PENDING},
+/* ID_ADDR  */ { SMP_PROC_ID_ADDR,      SMP_SM_NO_ACTION, SMP_STATE_BOND_PENDING}
+
+};
+
+static const UINT8 smp_slave_create_local_sec_conn_oob_data[][SMP_SM_NUM_COLS] =
+{
+/*                          Event                  Action                 Next State */
+/* LOC_PUBL_KEY_CRTD */ {SMP_SET_LOCAL_OOB_KEYS, SMP_SM_NO_ACTION, SMP_STATE_CREATE_LOCAL_SEC_CONN_OOB_DATA},
+/* HAVE_LOC_NONCE    */ {SMP_SET_LOCAL_OOB_RAND_COMMITMENT, SMP_SM_NO_ACTION, SMP_STATE_IDLE}
+};
+
+static const tSMP_SM_TBL smp_state_table[][2] =
+{
+    /* SMP_STATE_IDLE */
+    {smp_master_idle_table, smp_slave_idle_table},
+
+    /* SMP_STATE_WAIT_APP_RSP */
+    {smp_master_wait_for_app_response_table, smp_slave_wait_for_app_response_table},
+
+    /* SMP_STATE_SEC_REQ_PENDING */
+    {NULL, smp_slave_sec_request_table},
+
+    /* SMP_STATE_PAIR_REQ_RSP */
+    {smp_master_pair_request_response_table, smp_slave_pair_request_response_table},
+
+    /* SMP_STATE_WAIT_CONFIRM */
+    {smp_master_wait_for_confirm_table, smp_slave_wait_confirm_table},
+
+    /* SMP_STATE_CONFIRM */
+    {smp_master_confirm_table, smp_slave_confirm_table},
+
+    /* SMP_STATE_RAND */
+    {smp_master_rand_table, smp_slave_rand_table},
+
+    /* SMP_STATE_PUBLIC_KEY_EXCH */
+    {smp_master_public_key_exchange_table,smp_slave_public_key_exch_table},
+
+    /* SMP_STATE_SEC_CONN_PHS1_START */
+    {smp_master_sec_conn_phs1_start_table, smp_slave_sec_conn_phs1_start_table},
+
+    /* SMP_STATE_WAIT_COMMITMENT */
+    {smp_master_wait_commitment_table, smp_slave_wait_commitment_table},
+
+    /* SMP_STATE_WAIT_NONCE */
+    {smp_master_wait_nonce_table, smp_slave_wait_nonce_table},
+
+     /* SMP_STATE_SEC_CONN_PHS2_START */
+    {smp_master_sec_conn_phs2_start_table, smp_slave_sec_conn_phs2_start_table},
+
+    /* SMP_STATE_WAIT_DHK_CHECK */
+    {smp_master_wait_dhk_check_table, smp_slave_wait_dhk_check_table},
+
+    /* SMP_STATE_DHK_CHECK */
+    {smp_master_dhk_check_table, smp_slave_dhk_check_table},
+
+    /* SMP_STATE_ENCRYPTION_PENDING */
+    {smp_master_enc_pending_table, smp_slave_enc_pending_table},
+
+     /* SMP_STATE_BOND_PENDING */
+    {smp_master_bond_pending_table, smp_slave_bond_pending_table},
+
+    /* SMP_STATE_CREATE_LOCAL_SEC_CONN_OOB_DATA */
+    {smp_master_create_local_sec_conn_oob_data, smp_slave_create_local_sec_conn_oob_data}
+};
+
+typedef const UINT8 (*tSMP_ENTRY_TBL)[SMP_STATE_MAX];
+static const tSMP_ENTRY_TBL smp_entry_table[] =
+{
+    smp_master_entry_map,
+    smp_slave_entry_map
+};
+
+#if SMP_DYNAMIC_MEMORY == FALSE
+tSMP_CB  smp_cb;
+#endif
+#define SMP_ALL_TBL_MASK        0x80
+
+/*******************************************************************************
+** Function     smp_set_state
+** Returns      None
+*******************************************************************************/
+void smp_set_state(tSMP_STATE state)
+{
+    if (state < SMP_STATE_MAX)
+    {
+        SMP_TRACE_DEBUG( "State change: %s(%d) ==> %s(%d)",
+                          smp_get_state_name(smp_cb.state), smp_cb.state,
+                          smp_get_state_name(state), state );
+        smp_cb.state = state;
+    }
+    else
+    {
+        SMP_TRACE_DEBUG("smp_set_state invalid state =%d", state );
+    }
+}
+
+/*******************************************************************************
+** Function     smp_get_state
+** Returns      The smp state
+*******************************************************************************/
+tSMP_STATE smp_get_state(void)
+{
+    return smp_cb.state;
+}
+
+/*******************************************************************************
+**
+** Function     smp_sm_event
+**
+** Description  Handle events to the state machine. It looks up the entry
+**              in the smp_entry_table array.
+**              If it is a valid entry, it gets the state table.Set the next state,
+**              if not NULL state.Execute the action function according to the
+**              state table. If the state returned by action function is not NULL
+**              state, adjust the new state to the returned state.If (api_evt != MAX),
+**              call callback function.
+**
+** Returns      void.
+**
+*******************************************************************************/
+void smp_sm_event(tSMP_CB *p_cb, tSMP_EVENT event, void *p_data)
+{
+    UINT8           curr_state = p_cb->state;
+    tSMP_SM_TBL     state_table;
+    UINT8           action, entry, i;
+    tSMP_ENTRY_TBL  entry_table =  smp_entry_table[p_cb->role];
+
+    SMP_TRACE_EVENT("main smp_sm_event");
+    if (curr_state >= SMP_STATE_MAX)
+    {
+        SMP_TRACE_DEBUG( "Invalid state: %d", curr_state) ;
+        return;
+    }
+
+    SMP_TRACE_DEBUG( "SMP Role: %s State: [%s (%d)], Event: [%s (%d)]",\
+                      (p_cb->role == 0x01) ?"Slave" : "Master", smp_get_state_name( p_cb->state),
+                      p_cb->state, smp_get_event_name(event), event) ;
+
+    /* look up the state table for the current state */
+    /* lookup entry /w event & curr_state */
+    /* If entry is ignore, return.
+     * Otherwise, get state table (according to curr_state or all_state) */
+    if ((event <= SMP_MAX_EVT) && ( (entry = entry_table[event - 1][curr_state]) != SMP_SM_IGNORE ))
+    {
+        if (entry & SMP_ALL_TBL_MASK)
+        {
+            entry &= ~SMP_ALL_TBL_MASK;
+            state_table = smp_all_table;
+        }
+        else
+            state_table = smp_state_table[curr_state][p_cb->role];
+    }
+    else
+    {
+        SMP_TRACE_DEBUG( "Ignore event [%s (%d)] in state [%s (%d)]",
+                          smp_get_event_name(event), event, smp_get_state_name(curr_state),
+                          curr_state);
+        return;
+    }
+
+    /* Get possible next state from state table. */
+
+    smp_set_state(state_table[entry-1][SMP_SME_NEXT_STATE]);
+
+    /* If action is not ignore, clear param, exec action and get next state.
+     * The action function may set the Param for cback.
+     * Depending on param, call cback or free buffer. */
+    /* execute action */
+    /* execute action functions */
+    for (i = 0; i < SMP_NUM_ACTIONS; i++)
+    {
+        if ((action = state_table[entry-1][i]) != SMP_SM_NO_ACTION)
+        {
+            (*smp_sm_action[action])(p_cb, (tSMP_INT_DATA *)p_data);
+        }
+        else
+        {
+            break;
+        }
+    }
+    SMP_TRACE_DEBUG( "result state = %s", smp_get_state_name( p_cb->state ) ) ;
+}
+
+/*******************************************************************************
+** Function     smp_get_state_name
+** Returns      The smp state name.
+*******************************************************************************/
+const char * smp_get_state_name(tSMP_STATE state)
+{
+    const char *p_str = smp_state_name[SMP_STATE_MAX];
+
+    if (state < SMP_STATE_MAX)
+    {
+        p_str = smp_state_name[state];
+    }
+    return p_str;
+}
+
+/*******************************************************************************
+** Function     smp_get_event_name
+** Returns      The smp event name.
+*******************************************************************************/
+const char * smp_get_event_name(tSMP_EVENT event)
+{
+    const char *p_str = smp_event_name[SMP_MAX_EVT];
+
+    if (event <= SMP_MAX_EVT)
+    {
+        p_str = smp_event_name[event- 1];
+    }
+    return p_str;
+}
+
+#endif
+
diff --git a/rtkbt/code/bt/stack/smp/smp_utils.c b/rtkbt/code/bt/stack/smp/smp_utils.c
new file mode 100755
index 0000000..0be94c4
--- /dev/null
+++ b/rtkbt/code/bt/stack/smp/smp_utils.c
@@ -0,0 +1,1547 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+******************************************************************************/
+
+/******************************************************************************
+ *
+ *  This file contains functions for the SMP L2CAP utility functions
+ *
+ ******************************************************************************/
+#include "bt_target.h"
+
+#if SMP_INCLUDED == TRUE
+
+#include "bt_types.h"
+#include "bt_utils.h"
+#include <string.h>
+#include <ctype.h>
+#include "hcidefs.h"
+#include "btm_ble_api.h"
+#include "l2c_api.h"
+#include "l2c_int.h"
+#include "smp_int.h"
+#include "device/include/controller.h"
+#include "btm_int.h"
+
+
+extern fixed_queue_t *btu_general_alarm_queue;
+
+#define SMP_PAIRING_REQ_SIZE    7
+#define SMP_CONFIRM_CMD_SIZE    (BT_OCTET16_LEN + 1)
+#define SMP_RAND_CMD_SIZE       (BT_OCTET16_LEN + 1)
+#define SMP_INIT_CMD_SIZE       (BT_OCTET16_LEN + 1)
+#define SMP_ENC_INFO_SIZE       (BT_OCTET16_LEN + 1)
+#define SMP_MASTER_ID_SIZE      (BT_OCTET8_LEN + 2 + 1)
+#define SMP_ID_INFO_SIZE        (BT_OCTET16_LEN + 1)
+#define SMP_ID_ADDR_SIZE        (BD_ADDR_LEN + 1 + 1)
+#define SMP_SIGN_INFO_SIZE      (BT_OCTET16_LEN + 1)
+#define SMP_PAIR_FAIL_SIZE      2
+#define SMP_SECURITY_REQUEST_SIZE  2
+#define SMP_PAIR_PUBL_KEY_SIZE  (1 /* opcode */ + (2*BT_OCTET32_LEN))
+#define SMP_PAIR_COMMITM_SIZE           (1 /* opcode */ + BT_OCTET16_LEN /*Commitment*/)
+#define SMP_PAIR_DHKEY_CHECK_SIZE       (1 /* opcode */ + BT_OCTET16_LEN /*DHKey Check*/)
+#define SMP_PAIR_KEYPR_NOTIF_SIZE       (1 /* opcode */ + 1 /*Notif Type*/)
+
+/* SMP command sizes per spec */
+static const UINT8 smp_cmd_size_per_spec[] =
+{
+    0,
+    SMP_PAIRING_REQ_SIZE,       /* 0x01: pairing request */
+    SMP_PAIRING_REQ_SIZE,       /* 0x02: pairing response */
+    SMP_CONFIRM_CMD_SIZE,       /* 0x03: pairing confirm */
+    SMP_RAND_CMD_SIZE,          /* 0x04: pairing random */
+    SMP_PAIR_FAIL_SIZE,         /* 0x05: pairing failed */
+    SMP_ENC_INFO_SIZE,          /* 0x06: encryption information */
+    SMP_MASTER_ID_SIZE,         /* 0x07: master identification */
+    SMP_ID_INFO_SIZE,           /* 0x08: identity information */
+    SMP_ID_ADDR_SIZE,           /* 0x09: identity address information */
+    SMP_SIGN_INFO_SIZE,         /* 0x0A: signing information */
+    SMP_SECURITY_REQUEST_SIZE,  /* 0x0B: security request */
+    SMP_PAIR_PUBL_KEY_SIZE,     /* 0x0C: pairing public key */
+    SMP_PAIR_DHKEY_CHECK_SIZE,  /* 0x0D: pairing dhkey check */
+    SMP_PAIR_KEYPR_NOTIF_SIZE,  /* 0x0E: pairing keypress notification */
+    SMP_PAIR_COMMITM_SIZE       /* 0x0F: pairing commitment */
+};
+
+static BOOLEAN smp_parameter_unconditionally_valid(tSMP_CB *p_cb);
+static BOOLEAN smp_parameter_unconditionally_invalid(tSMP_CB *p_cb);
+
+/* type for SMP command length validation functions */
+typedef BOOLEAN (*tSMP_CMD_LEN_VALID)(tSMP_CB *p_cb);
+
+static BOOLEAN smp_command_has_valid_fixed_length(tSMP_CB *p_cb);
+
+static const tSMP_CMD_LEN_VALID smp_cmd_len_is_valid[] =
+{
+    smp_parameter_unconditionally_invalid,
+    smp_command_has_valid_fixed_length, /* 0x01: pairing request */
+    smp_command_has_valid_fixed_length, /* 0x02: pairing response */
+    smp_command_has_valid_fixed_length, /* 0x03: pairing confirm */
+    smp_command_has_valid_fixed_length, /* 0x04: pairing random */
+    smp_command_has_valid_fixed_length, /* 0x05: pairing failed */
+    smp_command_has_valid_fixed_length, /* 0x06: encryption information */
+    smp_command_has_valid_fixed_length, /* 0x07: master identification */
+    smp_command_has_valid_fixed_length, /* 0x08: identity information */
+    smp_command_has_valid_fixed_length, /* 0x09: identity address information */
+    smp_command_has_valid_fixed_length, /* 0x0A: signing information */
+    smp_command_has_valid_fixed_length, /* 0x0B: security request */
+    smp_command_has_valid_fixed_length, /* 0x0C: pairing public key */
+    smp_command_has_valid_fixed_length, /* 0x0D: pairing dhkey check */
+    smp_command_has_valid_fixed_length, /* 0x0E: pairing keypress notification */
+    smp_command_has_valid_fixed_length  /* 0x0F: pairing commitment */
+};
+
+/* type for SMP command parameter ranges validation functions */
+typedef BOOLEAN (*tSMP_CMD_PARAM_RANGES_VALID)(tSMP_CB *p_cb);
+
+static BOOLEAN smp_pairing_request_response_parameters_are_valid(tSMP_CB *p_cb);
+static BOOLEAN smp_pairing_keypress_notification_is_valid(tSMP_CB *p_cb);
+
+static const tSMP_CMD_PARAM_RANGES_VALID smp_cmd_param_ranges_are_valid[] =
+{
+    smp_parameter_unconditionally_invalid,
+    smp_pairing_request_response_parameters_are_valid, /* 0x01: pairing request */
+    smp_pairing_request_response_parameters_are_valid, /* 0x02: pairing response */
+    smp_parameter_unconditionally_valid, /* 0x03: pairing confirm */
+    smp_parameter_unconditionally_valid, /* 0x04: pairing random */
+    smp_parameter_unconditionally_valid, /* 0x05: pairing failed */
+    smp_parameter_unconditionally_valid, /* 0x06: encryption information */
+    smp_parameter_unconditionally_valid, /* 0x07: master identification */
+    smp_parameter_unconditionally_valid, /* 0x08: identity information */
+    smp_parameter_unconditionally_valid, /* 0x09: identity address information */
+    smp_parameter_unconditionally_valid, /* 0x0A: signing information */
+    smp_parameter_unconditionally_valid, /* 0x0B: security request */
+    smp_parameter_unconditionally_valid, /* 0x0C: pairing public key */
+    smp_parameter_unconditionally_valid, /* 0x0D: pairing dhkey check */
+    smp_pairing_keypress_notification_is_valid, /* 0x0E: pairing keypress notification */
+    smp_parameter_unconditionally_valid /* 0x0F: pairing commitment */
+};
+
+/* type for action functions */
+typedef BT_HDR * (*tSMP_CMD_ACT)(UINT8 cmd_code, tSMP_CB *p_cb);
+
+static BT_HDR *smp_build_pairing_cmd(UINT8 cmd_code, tSMP_CB *p_cb);
+static BT_HDR *smp_build_confirm_cmd(UINT8 cmd_code, tSMP_CB *p_cb);
+static BT_HDR *smp_build_rand_cmd(UINT8 cmd_code, tSMP_CB *p_cb);
+static BT_HDR *smp_build_pairing_fail(UINT8 cmd_code, tSMP_CB *p_cb);
+static BT_HDR *smp_build_identity_info_cmd(UINT8 cmd_code, tSMP_CB *p_cb);
+static BT_HDR *smp_build_encrypt_info_cmd(UINT8 cmd_code, tSMP_CB *p_cb);
+static BT_HDR *smp_build_security_request(UINT8 cmd_code, tSMP_CB *p_cb);
+static BT_HDR *smp_build_signing_info_cmd(UINT8 cmd_code, tSMP_CB *p_cb);
+static BT_HDR *smp_build_master_id_cmd(UINT8 cmd_code, tSMP_CB *p_cb);
+static BT_HDR *smp_build_id_addr_cmd(UINT8 cmd_code, tSMP_CB *p_cb);
+static BT_HDR *smp_build_pair_public_key_cmd(UINT8 cmd_code, tSMP_CB *p_cb);
+static BT_HDR *smp_build_pairing_commitment_cmd(UINT8 cmd_code, tSMP_CB *p_cb);
+static BT_HDR *smp_build_pair_dhkey_check_cmd(UINT8 cmd_code, tSMP_CB *p_cb);
+static BT_HDR *smp_build_pairing_keypress_notification_cmd(UINT8 cmd_code, tSMP_CB *p_cb);
+
+static const tSMP_CMD_ACT smp_cmd_build_act[] =
+{
+    NULL,
+    smp_build_pairing_cmd,          /* 0x01: pairing request */
+    smp_build_pairing_cmd,          /* 0x02: pairing response */
+    smp_build_confirm_cmd,          /* 0x03: pairing confirm */
+    smp_build_rand_cmd,             /* 0x04: pairing random */
+    smp_build_pairing_fail,         /* 0x05: pairing failure */
+    smp_build_encrypt_info_cmd,     /* 0x06: encryption information */
+    smp_build_master_id_cmd,        /* 0x07: master identification */
+    smp_build_identity_info_cmd,    /* 0x08: identity information */
+    smp_build_id_addr_cmd,          /* 0x09: identity address information */
+    smp_build_signing_info_cmd,     /* 0x0A: signing information */
+    smp_build_security_request,     /* 0x0B: security request */
+    smp_build_pair_public_key_cmd,  /* 0x0C: pairing public key */
+    smp_build_pair_dhkey_check_cmd, /* 0x0D: pairing DHKey check */
+    smp_build_pairing_keypress_notification_cmd, /* 0x0E: pairing keypress notification */
+    smp_build_pairing_commitment_cmd /* 0x0F: pairing commitment */
+};
+
+static const UINT8 smp_association_table[2][SMP_IO_CAP_MAX][SMP_IO_CAP_MAX] =
+{
+    /* display only */    /* Display Yes/No */   /* keyboard only */
+                       /* No Input/Output */ /* keyboard display */
+
+     /* initiator */
+     /* model = tbl[peer_io_caps][loc_io_caps] */
+     /* Display Only */
+    {{SMP_MODEL_ENCRYPTION_ONLY, SMP_MODEL_ENCRYPTION_ONLY, SMP_MODEL_PASSKEY,
+                                 SMP_MODEL_ENCRYPTION_ONLY, SMP_MODEL_PASSKEY},
+
+     /* Display Yes/No */
+     {SMP_MODEL_ENCRYPTION_ONLY, SMP_MODEL_ENCRYPTION_ONLY, SMP_MODEL_PASSKEY,
+                                 SMP_MODEL_ENCRYPTION_ONLY, SMP_MODEL_PASSKEY},
+
+     /* Keyboard only */
+     {SMP_MODEL_KEY_NOTIF, SMP_MODEL_KEY_NOTIF, SMP_MODEL_PASSKEY,
+                           SMP_MODEL_ENCRYPTION_ONLY, SMP_MODEL_KEY_NOTIF},
+
+     /* No Input No Output */
+     {SMP_MODEL_ENCRYPTION_ONLY, SMP_MODEL_ENCRYPTION_ONLY, SMP_MODEL_ENCRYPTION_ONLY,
+                                 SMP_MODEL_ENCRYPTION_ONLY, SMP_MODEL_ENCRYPTION_ONLY},
+
+     /* keyboard display */
+     {SMP_MODEL_KEY_NOTIF, SMP_MODEL_KEY_NOTIF, SMP_MODEL_PASSKEY,
+                           SMP_MODEL_ENCRYPTION_ONLY, SMP_MODEL_KEY_NOTIF}},
+
+     /* responder */
+     /* model = tbl[loc_io_caps][peer_io_caps] */
+     /* Display Only */
+    {{SMP_MODEL_ENCRYPTION_ONLY, SMP_MODEL_ENCRYPTION_ONLY, SMP_MODEL_KEY_NOTIF,
+                                 SMP_MODEL_ENCRYPTION_ONLY, SMP_MODEL_KEY_NOTIF},
+
+      /* Display Yes/No */
+     {SMP_MODEL_ENCRYPTION_ONLY, SMP_MODEL_ENCRYPTION_ONLY, SMP_MODEL_KEY_NOTIF,
+                                 SMP_MODEL_ENCRYPTION_ONLY, SMP_MODEL_KEY_NOTIF},
+
+      /* keyboard only */
+     {SMP_MODEL_PASSKEY, SMP_MODEL_PASSKEY, SMP_MODEL_PASSKEY,
+                         SMP_MODEL_ENCRYPTION_ONLY, SMP_MODEL_PASSKEY},
+
+      /* No Input No Output */
+     {SMP_MODEL_ENCRYPTION_ONLY, SMP_MODEL_ENCRYPTION_ONLY, SMP_MODEL_ENCRYPTION_ONLY,
+                                 SMP_MODEL_ENCRYPTION_ONLY, SMP_MODEL_ENCRYPTION_ONLY},
+
+      /* keyboard display */
+     {SMP_MODEL_PASSKEY, SMP_MODEL_PASSKEY, SMP_MODEL_KEY_NOTIF,
+                         SMP_MODEL_ENCRYPTION_ONLY, SMP_MODEL_PASSKEY}}
+};
+
+static const UINT8 smp_association_table_sc[2][SMP_IO_CAP_MAX][SMP_IO_CAP_MAX] =
+{
+     /* display only */    /* Display Yes/No */   /* keyboard only */
+                                             /* No InputOutput */  /* keyboard display */
+
+     /* initiator */
+     /* model = tbl[peer_io_caps][loc_io_caps] */
+
+     /* Display Only */
+    {{SMP_MODEL_SEC_CONN_JUSTWORKS, SMP_MODEL_SEC_CONN_JUSTWORKS, SMP_MODEL_SEC_CONN_PASSKEY_ENT,
+                                    SMP_MODEL_SEC_CONN_JUSTWORKS, SMP_MODEL_SEC_CONN_PASSKEY_ENT},
+
+     /* Display Yes/No */
+     {SMP_MODEL_SEC_CONN_JUSTWORKS, SMP_MODEL_SEC_CONN_NUM_COMP, SMP_MODEL_SEC_CONN_PASSKEY_ENT,
+                                    SMP_MODEL_SEC_CONN_JUSTWORKS, SMP_MODEL_SEC_CONN_NUM_COMP},
+
+     /* keyboard only */
+     {SMP_MODEL_SEC_CONN_PASSKEY_DISP, SMP_MODEL_SEC_CONN_PASSKEY_DISP, SMP_MODEL_SEC_CONN_PASSKEY_ENT,
+                                       SMP_MODEL_SEC_CONN_JUSTWORKS, SMP_MODEL_SEC_CONN_PASSKEY_DISP},
+
+     /* No Input No Output */
+     {SMP_MODEL_SEC_CONN_JUSTWORKS, SMP_MODEL_SEC_CONN_JUSTWORKS, SMP_MODEL_SEC_CONN_JUSTWORKS,
+                                    SMP_MODEL_SEC_CONN_JUSTWORKS, SMP_MODEL_SEC_CONN_JUSTWORKS},
+
+     /* keyboard display */
+     {SMP_MODEL_SEC_CONN_PASSKEY_DISP, SMP_MODEL_SEC_CONN_NUM_COMP, SMP_MODEL_SEC_CONN_PASSKEY_ENT,
+                                       SMP_MODEL_SEC_CONN_JUSTWORKS, SMP_MODEL_SEC_CONN_NUM_COMP}},
+
+     /* responder */
+     /* model = tbl[loc_io_caps][peer_io_caps] */
+
+     /* Display Only */
+    {{SMP_MODEL_SEC_CONN_JUSTWORKS, SMP_MODEL_SEC_CONN_JUSTWORKS, SMP_MODEL_SEC_CONN_PASSKEY_DISP,
+                                    SMP_MODEL_SEC_CONN_JUSTWORKS, SMP_MODEL_SEC_CONN_PASSKEY_DISP},
+
+     /* Display Yes/No */
+     {SMP_MODEL_SEC_CONN_JUSTWORKS, SMP_MODEL_SEC_CONN_NUM_COMP, SMP_MODEL_SEC_CONN_PASSKEY_DISP,
+                                    SMP_MODEL_SEC_CONN_JUSTWORKS, SMP_MODEL_SEC_CONN_NUM_COMP},
+
+     /* keyboard only */
+     {SMP_MODEL_SEC_CONN_PASSKEY_ENT, SMP_MODEL_SEC_CONN_PASSKEY_ENT, SMP_MODEL_SEC_CONN_PASSKEY_ENT,
+                                      SMP_MODEL_SEC_CONN_JUSTWORKS, SMP_MODEL_SEC_CONN_PASSKEY_ENT},
+
+     /* No Input No Output */
+     {SMP_MODEL_SEC_CONN_JUSTWORKS, SMP_MODEL_SEC_CONN_JUSTWORKS, SMP_MODEL_SEC_CONN_JUSTWORKS,
+                                    SMP_MODEL_SEC_CONN_JUSTWORKS, SMP_MODEL_SEC_CONN_JUSTWORKS},
+
+     /* keyboard display */
+     {SMP_MODEL_SEC_CONN_PASSKEY_ENT, SMP_MODEL_SEC_CONN_NUM_COMP, SMP_MODEL_SEC_CONN_PASSKEY_DISP,
+                       SMP_MODEL_SEC_CONN_JUSTWORKS, SMP_MODEL_SEC_CONN_NUM_COMP}}
+};
+
+static tSMP_ASSO_MODEL smp_select_legacy_association_model(tSMP_CB *p_cb);
+static tSMP_ASSO_MODEL smp_select_association_model_secure_connections(tSMP_CB *p_cb);
+
+/*******************************************************************************
+**
+** Function         smp_send_msg_to_L2CAP
+**
+** Description      Send message to L2CAP.
+**
+*******************************************************************************/
+BOOLEAN  smp_send_msg_to_L2CAP(BD_ADDR rem_bda, BT_HDR *p_toL2CAP)
+{
+    UINT16 l2cap_ret;
+    UINT16 fixed_cid = L2CAP_SMP_CID;
+
+    if (smp_cb.smp_over_br)
+    {
+        fixed_cid = L2CAP_SMP_BR_CID;
+    }
+
+    SMP_TRACE_EVENT("%s", __FUNCTION__);
+    smp_cb.total_tx_unacked += 1;
+
+    if ((l2cap_ret = L2CA_SendFixedChnlData (fixed_cid, rem_bda, p_toL2CAP)) == L2CAP_DW_FAILED)
+    {
+        smp_cb.total_tx_unacked -= 1;
+        SMP_TRACE_ERROR("SMP   failed to pass msg:0x%0x to L2CAP",
+                         *((UINT8 *)(p_toL2CAP + 1) + p_toL2CAP->offset));
+        return FALSE;
+    }
+    else
+        return TRUE;
+}
+
+/*******************************************************************************
+**
+** Function         smp_send_cmd
+**
+** Description      send a SMP command on L2CAP channel.
+**
+*******************************************************************************/
+BOOLEAN smp_send_cmd(UINT8 cmd_code, tSMP_CB *p_cb)
+{
+    BT_HDR *p_buf;
+    BOOLEAN sent = FALSE;
+    UINT8 failure = SMP_PAIR_INTERNAL_ERR;
+    SMP_TRACE_EVENT("smp_send_cmd on l2cap cmd_code=0x%x", cmd_code);
+    if ( cmd_code <= (SMP_OPCODE_MAX + 1 /* for SMP_OPCODE_PAIR_COMMITM */) &&
+         smp_cmd_build_act[cmd_code] != NULL)
+    {
+        p_buf = (*smp_cmd_build_act[cmd_code])(cmd_code, p_cb);
+
+        if (p_buf != NULL &&
+            smp_send_msg_to_L2CAP(p_cb->pairing_bda, p_buf))
+        {
+            sent = TRUE;
+            alarm_set_on_queue(p_cb->smp_rsp_timer_ent,
+                               SMP_WAIT_FOR_RSP_TIMEOUT_MS, smp_rsp_timeout,
+                               NULL, btu_general_alarm_queue);
+        }
+    }
+
+    if (!sent)
+    {
+        if (p_cb->smp_over_br)
+        {
+            smp_br_state_machine_event(p_cb, SMP_BR_AUTH_CMPL_EVT, &failure);
+        }
+        else
+        {
+            smp_sm_event(p_cb, SMP_AUTH_CMPL_EVT, &failure);
+        }
+    }
+    return sent;
+}
+
+/*******************************************************************************
+**
+** Function         smp_rsp_timeout
+**
+** Description      Called when SMP wait for SMP command response timer expires
+**
+** Returns          void
+**
+*******************************************************************************/
+void smp_rsp_timeout(UNUSED_ATTR void *data)
+{
+    tSMP_CB   *p_cb = &smp_cb;
+    UINT8 failure = SMP_RSP_TIMEOUT;
+
+    SMP_TRACE_EVENT("%s state:%d br_state:%d", __FUNCTION__, p_cb->state, p_cb->br_state);
+
+    if (p_cb->smp_over_br)
+    {
+        smp_br_state_machine_event(p_cb, SMP_BR_AUTH_CMPL_EVT, &failure);
+    }
+    else
+    {
+        smp_sm_event(p_cb, SMP_AUTH_CMPL_EVT, &failure);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         smp_build_pairing_req_cmd
+**
+** Description      Build pairing request command.
+**
+*******************************************************************************/
+BT_HDR * smp_build_pairing_cmd(UINT8 cmd_code, tSMP_CB *p_cb)
+{
+    UINT8 *p;
+    BT_HDR *p_buf = (BT_HDR *)osi_malloc(sizeof(BT_HDR) +
+                        SMP_PAIRING_REQ_SIZE + L2CAP_MIN_OFFSET);
+
+    SMP_TRACE_EVENT("%s", __func__);
+
+    p = (UINT8 *)(p_buf + 1) + L2CAP_MIN_OFFSET;
+    UINT8_TO_STREAM(p, cmd_code);
+    UINT8_TO_STREAM(p, p_cb->local_io_capability);
+    UINT8_TO_STREAM(p, p_cb->loc_oob_flag);
+    UINT8_TO_STREAM(p, p_cb->loc_auth_req);
+    UINT8_TO_STREAM(p, p_cb->loc_enc_size);
+    UINT8_TO_STREAM(p, p_cb->local_i_key);
+    UINT8_TO_STREAM(p, p_cb->local_r_key);
+
+    p_buf->offset = L2CAP_MIN_OFFSET;
+    /* 1B ERR_RSP op code + 1B cmd_op_code + 2B handle + 1B status */
+    p_buf->len = SMP_PAIRING_REQ_SIZE;
+
+    return p_buf;
+}
+
+/*******************************************************************************
+**
+** Function         smp_build_confirm_cmd
+**
+** Description      Build confirm request command.
+**
+*******************************************************************************/
+static BT_HDR * smp_build_confirm_cmd(UINT8 cmd_code, tSMP_CB *p_cb)
+{
+    UINT8 *p;
+    BT_HDR *p_buf = (BT_HDR *)osi_malloc(sizeof(BT_HDR) +
+                        SMP_CONFIRM_CMD_SIZE + L2CAP_MIN_OFFSET);
+
+    UNUSED(cmd_code);
+    SMP_TRACE_EVENT("%s", __func__);
+
+    p = (UINT8 *)(p_buf + 1) + L2CAP_MIN_OFFSET;
+
+    UINT8_TO_STREAM(p, SMP_OPCODE_CONFIRM);
+    ARRAY_TO_STREAM(p, p_cb->confirm, BT_OCTET16_LEN);
+
+    p_buf->offset = L2CAP_MIN_OFFSET;
+    p_buf->len = SMP_CONFIRM_CMD_SIZE;
+
+    return p_buf;
+}
+
+/*******************************************************************************
+**
+** Function         smp_build_rand_cmd
+**
+** Description      Build Random command.
+**
+*******************************************************************************/
+static BT_HDR * smp_build_rand_cmd(UINT8 cmd_code, tSMP_CB *p_cb)
+{
+    UINT8 *p;
+    BT_HDR *p_buf = (BT_HDR *)osi_malloc(sizeof(BT_HDR) +
+                        SMP_RAND_CMD_SIZE + L2CAP_MIN_OFFSET);
+
+    UNUSED(cmd_code);
+    SMP_TRACE_EVENT("%s", __func__);
+
+    p = (UINT8 *)(p_buf + 1) + L2CAP_MIN_OFFSET;
+    UINT8_TO_STREAM(p, SMP_OPCODE_RAND);
+    ARRAY_TO_STREAM(p, p_cb->rand, BT_OCTET16_LEN);
+
+    p_buf->offset = L2CAP_MIN_OFFSET;
+    p_buf->len = SMP_RAND_CMD_SIZE;
+
+    return p_buf;
+}
+
+/*******************************************************************************
+**
+** Function         smp_build_encrypt_info_cmd
+**
+** Description      Build security information command.
+**
+*******************************************************************************/
+static BT_HDR * smp_build_encrypt_info_cmd(UINT8 cmd_code, tSMP_CB *p_cb)
+{
+    UINT8 *p;
+    BT_HDR *p_buf = (BT_HDR *)osi_malloc(sizeof(BT_HDR) +
+                        SMP_ENC_INFO_SIZE + L2CAP_MIN_OFFSET);
+
+    UNUSED(cmd_code);
+    SMP_TRACE_EVENT("%s", __func__);
+
+    p = (UINT8 *)(p_buf + 1) + L2CAP_MIN_OFFSET;
+    UINT8_TO_STREAM(p, SMP_OPCODE_ENCRYPT_INFO);
+    ARRAY_TO_STREAM(p, p_cb->ltk, BT_OCTET16_LEN);
+
+    p_buf->offset = L2CAP_MIN_OFFSET;
+    p_buf->len = SMP_ENC_INFO_SIZE;
+
+    return p_buf;
+}
+
+/*******************************************************************************
+**
+** Function         smp_build_master_id_cmd
+**
+** Description      Build security information command.
+**
+*******************************************************************************/
+static BT_HDR * smp_build_master_id_cmd(UINT8 cmd_code, tSMP_CB *p_cb)
+{
+    UINT8 *p;
+    BT_HDR *p_buf = (BT_HDR *)osi_malloc(sizeof(BT_HDR) +
+                        SMP_MASTER_ID_SIZE + L2CAP_MIN_OFFSET);
+
+    UNUSED(cmd_code);
+    SMP_TRACE_EVENT("%s", __func__);
+
+    p = (UINT8 *)(p_buf + 1) + L2CAP_MIN_OFFSET;
+    UINT8_TO_STREAM(p, SMP_OPCODE_MASTER_ID);
+    UINT16_TO_STREAM(p, p_cb->ediv);
+    ARRAY_TO_STREAM(p, p_cb->enc_rand, BT_OCTET8_LEN);
+
+    p_buf->offset = L2CAP_MIN_OFFSET;
+    p_buf->len = SMP_MASTER_ID_SIZE;
+
+    return p_buf;
+}
+
+/*******************************************************************************
+**
+** Function         smp_build_identity_info_cmd
+**
+** Description      Build identity information command.
+**
+*******************************************************************************/
+static BT_HDR * smp_build_identity_info_cmd(UINT8 cmd_code, tSMP_CB *p_cb)
+{
+    UINT8 *p;
+    BT_OCTET16 irk;
+    BT_HDR *p_buf = (BT_HDR *)osi_malloc(sizeof(BT_HDR) +
+                        SMP_ID_INFO_SIZE + L2CAP_MIN_OFFSET);
+
+    UNUSED(cmd_code);
+    UNUSED(p_cb);
+    SMP_TRACE_EVENT("%s", __func__);
+
+    p = (UINT8 *)(p_buf + 1) + L2CAP_MIN_OFFSET;
+
+    BTM_GetDeviceIDRoot(irk);
+
+    UINT8_TO_STREAM(p, SMP_OPCODE_IDENTITY_INFO);
+    ARRAY_TO_STREAM(p,  irk, BT_OCTET16_LEN);
+
+    p_buf->offset = L2CAP_MIN_OFFSET;
+    p_buf->len = SMP_ID_INFO_SIZE;
+
+    return p_buf;
+}
+
+/*******************************************************************************
+**
+** Function         smp_build_id_addr_cmd
+**
+** Description      Build identity address information command.
+**
+*******************************************************************************/
+static BT_HDR * smp_build_id_addr_cmd(UINT8 cmd_code, tSMP_CB *p_cb)
+{
+    UINT8 *p;
+    BT_HDR *p_buf = (BT_HDR *)osi_malloc(sizeof(BT_HDR) +
+                        SMP_ID_ADDR_SIZE + L2CAP_MIN_OFFSET);
+
+    UNUSED(cmd_code);
+    UNUSED(p_cb);
+    SMP_TRACE_EVENT("%s", __func__);
+
+    p = (UINT8 *)(p_buf + 1) + L2CAP_MIN_OFFSET;
+    UINT8_TO_STREAM(p, SMP_OPCODE_ID_ADDR);
+    UINT8_TO_STREAM(p, 0);
+    BDADDR_TO_STREAM(p, controller_get_interface()->get_address()->address);
+
+    p_buf->offset = L2CAP_MIN_OFFSET;
+    p_buf->len = SMP_ID_ADDR_SIZE;
+
+    return p_buf;
+}
+
+/*******************************************************************************
+**
+** Function         smp_build_signing_info_cmd
+**
+** Description      Build signing information command.
+**
+*******************************************************************************/
+static BT_HDR * smp_build_signing_info_cmd(UINT8 cmd_code, tSMP_CB *p_cb)
+{
+    UINT8 *p;
+    BT_HDR *p_buf = (BT_HDR *)osi_malloc(sizeof(BT_HDR) +
+                        SMP_SIGN_INFO_SIZE + L2CAP_MIN_OFFSET);
+
+    UNUSED(cmd_code);
+    SMP_TRACE_EVENT("%s", __func__);
+
+    p = (UINT8 *)(p_buf + 1) + L2CAP_MIN_OFFSET;
+    UINT8_TO_STREAM(p, SMP_OPCODE_SIGN_INFO);
+    ARRAY_TO_STREAM(p, p_cb->csrk, BT_OCTET16_LEN);
+
+    p_buf->offset = L2CAP_MIN_OFFSET;
+    p_buf->len = SMP_SIGN_INFO_SIZE;
+
+    return p_buf;
+}
+
+/*******************************************************************************
+**
+** Function         smp_build_pairing_fail
+**
+** Description      Build Pairing Fail command.
+**
+*******************************************************************************/
+static BT_HDR * smp_build_pairing_fail(UINT8 cmd_code, tSMP_CB *p_cb)
+{
+    UINT8 *p;
+    BT_HDR *p_buf = (BT_HDR *)osi_malloc(sizeof(BT_HDR) +
+                        SMP_PAIR_FAIL_SIZE + L2CAP_MIN_OFFSET);
+
+    UNUSED(cmd_code);
+    SMP_TRACE_EVENT("%s", __func__);
+
+    p = (UINT8 *)(p_buf + 1) + L2CAP_MIN_OFFSET;
+    UINT8_TO_STREAM(p, SMP_OPCODE_PAIRING_FAILED);
+    UINT8_TO_STREAM(p, p_cb->failure);
+
+    p_buf->offset = L2CAP_MIN_OFFSET;
+    p_buf->len = SMP_PAIR_FAIL_SIZE;
+
+    return p_buf;
+}
+
+/*******************************************************************************
+**
+** Function         smp_build_security_request
+**
+** Description      Build security request command.
+**
+*******************************************************************************/
+static BT_HDR *smp_build_security_request(UINT8 cmd_code, tSMP_CB *p_cb)
+{
+    UINT8 *p;
+    BT_HDR *p_buf = (BT_HDR *)osi_malloc(sizeof(BT_HDR) +
+                        2 + L2CAP_MIN_OFFSET);
+
+    UNUSED(cmd_code);
+    SMP_TRACE_EVENT("%s", __func__);
+
+    p = (UINT8 *)(p_buf + 1) + L2CAP_MIN_OFFSET;
+    UINT8_TO_STREAM(p, SMP_OPCODE_SEC_REQ);
+    UINT8_TO_STREAM(p, p_cb->loc_auth_req);
+
+    p_buf->offset = L2CAP_MIN_OFFSET;
+    p_buf->len = SMP_SECURITY_REQUEST_SIZE;
+
+    SMP_TRACE_EVENT("opcode=%d auth_req=0x%x",SMP_OPCODE_SEC_REQ,  p_cb->loc_auth_req );
+
+    return p_buf;
+}
+
+/*******************************************************************************
+**
+** Function         smp_build_pair_public_key_cmd
+**
+** Description      Build pairing public key command.
+**
+*******************************************************************************/
+static BT_HDR *smp_build_pair_public_key_cmd(UINT8 cmd_code, tSMP_CB *p_cb)
+{
+    UINT8   *p;
+    UINT8   publ_key[2*BT_OCTET32_LEN];
+    UINT8   *p_publ_key = publ_key;
+    BT_HDR  *p_buf = (BT_HDR *)osi_malloc(sizeof(BT_HDR) +
+                        SMP_PAIR_PUBL_KEY_SIZE + L2CAP_MIN_OFFSET);
+
+    UNUSED(cmd_code);
+    SMP_TRACE_EVENT("%s", __func__);
+
+    memcpy(p_publ_key, p_cb->loc_publ_key.x, BT_OCTET32_LEN);
+    memcpy(p_publ_key + BT_OCTET32_LEN, p_cb->loc_publ_key.y, BT_OCTET32_LEN);
+
+    p = (UINT8 *)(p_buf + 1) + L2CAP_MIN_OFFSET;
+    UINT8_TO_STREAM(p, SMP_OPCODE_PAIR_PUBLIC_KEY);
+    ARRAY_TO_STREAM(p, p_publ_key, 2*BT_OCTET32_LEN);
+
+    p_buf->offset = L2CAP_MIN_OFFSET;
+    p_buf->len = SMP_PAIR_PUBL_KEY_SIZE;
+
+    return p_buf;
+}
+
+/*******************************************************************************
+**
+** Function         smp_build_pairing_commitment_cmd
+**
+** Description      Build pairing commitment command.
+**
+*******************************************************************************/
+static BT_HDR *smp_build_pairing_commitment_cmd(UINT8 cmd_code, tSMP_CB *p_cb)
+{
+    UINT8 *p;
+    BT_HDR *p_buf = (BT_HDR *)osi_malloc(sizeof(BT_HDR) +
+                        SMP_PAIR_COMMITM_SIZE + L2CAP_MIN_OFFSET);
+
+    UNUSED(cmd_code);
+    SMP_TRACE_EVENT("%s", __func__);
+
+    p = (UINT8 *)(p_buf + 1) + L2CAP_MIN_OFFSET;
+    UINT8_TO_STREAM(p, SMP_OPCODE_CONFIRM);
+    ARRAY_TO_STREAM(p, p_cb->commitment, BT_OCTET16_LEN);
+
+    p_buf->offset = L2CAP_MIN_OFFSET;
+    p_buf->len = SMP_PAIR_COMMITM_SIZE;
+
+    return p_buf;
+}
+
+/*******************************************************************************
+**
+** Function         smp_build_pair_dhkey_check_cmd
+**
+** Description      Build pairing DHKey check command.
+**
+*******************************************************************************/
+static BT_HDR *smp_build_pair_dhkey_check_cmd(UINT8 cmd_code, tSMP_CB *p_cb)
+{
+    UINT8 *p;
+    BT_HDR *p_buf = (BT_HDR *)osi_malloc(sizeof(BT_HDR) +
+                        SMP_PAIR_DHKEY_CHECK_SIZE + L2CAP_MIN_OFFSET);
+
+    UNUSED(cmd_code);
+    SMP_TRACE_EVENT("%s", __func__);
+
+    p = (UINT8 *)(p_buf + 1) + L2CAP_MIN_OFFSET;
+    UINT8_TO_STREAM(p, SMP_OPCODE_PAIR_DHKEY_CHECK);
+    ARRAY_TO_STREAM(p, p_cb->dhkey_check, BT_OCTET16_LEN);
+
+    p_buf->offset = L2CAP_MIN_OFFSET;
+    p_buf->len = SMP_PAIR_DHKEY_CHECK_SIZE;
+
+    return p_buf;
+}
+
+/*******************************************************************************
+**
+** Function         smp_build_pairing_keypress_notification_cmd
+**
+** Description      Build keypress notification command.
+**
+*******************************************************************************/
+static BT_HDR * smp_build_pairing_keypress_notification_cmd(UINT8 cmd_code, tSMP_CB *p_cb)
+{
+    UINT8       *p;
+    BT_HDR *p_buf = (BT_HDR *)osi_malloc(sizeof(BT_HDR) +
+                        SMP_PAIR_KEYPR_NOTIF_SIZE + L2CAP_MIN_OFFSET);
+
+    UNUSED(cmd_code);
+    SMP_TRACE_EVENT("%s", __func__);
+
+    p = (UINT8 *)(p_buf + 1) + L2CAP_MIN_OFFSET;
+    UINT8_TO_STREAM(p, SMP_OPCODE_PAIR_KEYPR_NOTIF);
+    UINT8_TO_STREAM(p, p_cb->local_keypress_notification);
+
+    p_buf->offset = L2CAP_MIN_OFFSET;
+    p_buf->len = SMP_PAIR_KEYPR_NOTIF_SIZE;
+
+    return p_buf;
+}
+
+/*******************************************************************************
+**
+** Function         smp_convert_string_to_tk
+**
+** Description      This function is called to convert a 6 to 16 digits numeric
+**                  character string into SMP TK.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void smp_convert_string_to_tk(BT_OCTET16 tk, UINT32 passkey)
+{
+    UINT8   *p = tk;
+    tSMP_KEY    key;
+    SMP_TRACE_EVENT("smp_convert_string_to_tk");
+    UINT32_TO_STREAM(p, passkey);
+
+    key.key_type    = SMP_KEY_TYPE_TK;
+    key.p_data      = tk;
+
+    smp_sm_event(&smp_cb, SMP_KEY_READY_EVT, &key);
+}
+
+/*******************************************************************************
+**
+** Function         smp_mask_enc_key
+**
+** Description      This function is called to mask off the encryption key based
+**                  on the maximum encryption key size.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void smp_mask_enc_key(UINT8 loc_enc_size, UINT8 * p_data)
+{
+    SMP_TRACE_EVENT("smp_mask_enc_key");
+    if (loc_enc_size < BT_OCTET16_LEN)
+    {
+        for (; loc_enc_size < BT_OCTET16_LEN; loc_enc_size ++)
+            * (p_data + loc_enc_size) = 0;
+    }
+    return;
+}
+
+/*******************************************************************************
+**
+** Function         smp_xor_128
+**
+** Description      utility function to do an biteise exclusive-OR of two bit
+**                  strings of the length of BT_OCTET16_LEN.
+**
+** Returns          void
+**
+*******************************************************************************/
+void smp_xor_128(BT_OCTET16 a, BT_OCTET16 b)
+{
+    UINT8 i, *aa = a, *bb = b;
+
+    SMP_TRACE_EVENT("smp_xor_128");
+    for (i = 0; i < BT_OCTET16_LEN; i++)
+    {
+        aa[i] = aa[i] ^ bb[i];
+    }
+}
+
+/*******************************************************************************
+**
+** Function         smp_cb_cleanup
+**
+** Description      Clean up SMP control block
+**
+** Returns          void
+**
+*******************************************************************************/
+void smp_cb_cleanup(tSMP_CB   *p_cb)
+{
+    tSMP_CALLBACK   *p_callback = p_cb->p_callback;
+    UINT8           trace_level = p_cb->trace_level;
+
+    SMP_TRACE_EVENT("smp_cb_cleanup");
+
+    alarm_free(p_cb->smp_rsp_timer_ent);
+    memset(p_cb, 0, sizeof(tSMP_CB));
+    p_cb->p_callback = p_callback;
+    p_cb->trace_level = trace_level;
+    p_cb->smp_rsp_timer_ent = alarm_new("smp.smp_rsp_timer_ent");
+}
+
+/*******************************************************************************
+**
+** Function         smp_remove_fixed_channel
+**
+** Description      This function is called to remove the fixed channel
+**
+** Returns          void
+**
+*******************************************************************************/
+void smp_remove_fixed_channel(tSMP_CB *p_cb)
+{
+    SMP_TRACE_DEBUG("%s", __func__);
+
+    if (p_cb->smp_over_br)
+        L2CA_RemoveFixedChnl (L2CAP_SMP_BR_CID, p_cb->pairing_bda);
+    else
+        L2CA_RemoveFixedChnl (L2CAP_SMP_CID, p_cb->pairing_bda);
+}
+
+/*******************************************************************************
+**
+** Function         smp_reset_control_value
+**
+** Description      This function is called to reset the control block value when
+**                  pairing procedure finished.
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void smp_reset_control_value(tSMP_CB *p_cb)
+{
+    SMP_TRACE_EVENT("%s", __func__);
+
+    alarm_cancel(p_cb->smp_rsp_timer_ent);
+    p_cb->flags = 0;
+    /* set the link idle timer to drop the link when pairing is done
+       usually service discovery will follow authentication complete, to avoid
+       racing condition for a link down/up, set link idle timer to be
+       SMP_LINK_TOUT_MIN to guarantee SMP key exchange */
+    L2CA_SetIdleTimeoutByBdAddr(p_cb->pairing_bda, SMP_LINK_TOUT_MIN, BT_TRANSPORT_LE);
+
+    /* We can tell L2CAP to remove the fixed channel (if it has one) */
+    smp_remove_fixed_channel(p_cb);
+    smp_cb_cleanup(p_cb);
+}
+
+/*******************************************************************************
+**
+** Function         smp_proc_pairing_cmpl
+**
+** Description      This function is called to process pairing complete
+**
+**
+** Returns          void
+**
+*******************************************************************************/
+void smp_proc_pairing_cmpl(tSMP_CB *p_cb)
+{
+    tSMP_EVT_DATA   evt_data = {0};
+    tSMP_CALLBACK   *p_callback = p_cb->p_callback;
+    BD_ADDR         pairing_bda;
+
+    SMP_TRACE_DEBUG ("smp_proc_pairing_cmpl ");
+
+    evt_data.cmplt.reason = p_cb->status;
+    evt_data.cmplt.smp_over_br = p_cb->smp_over_br;
+
+    if (p_cb->status == SMP_SUCCESS)
+        evt_data.cmplt.sec_level = p_cb->sec_level;
+
+    evt_data.cmplt.is_pair_cancel  = FALSE;
+
+    if (p_cb->is_pair_cancel)
+        evt_data.cmplt.is_pair_cancel = TRUE;
+
+
+    SMP_TRACE_DEBUG ("send SMP_COMPLT_EVT reason=0x%0x sec_level=0x%0x",
+                      evt_data.cmplt.reason,
+                      evt_data.cmplt.sec_level );
+
+    memcpy (pairing_bda, p_cb->pairing_bda, BD_ADDR_LEN);
+
+    smp_reset_control_value(p_cb);
+
+    if (p_callback)
+        (*p_callback) (SMP_COMPLT_EVT, pairing_bda, &evt_data);
+}
+
+/*******************************************************************************
+**
+** Function         smp_command_has_invalid_parameters
+**
+** Description      Checks if the received SMP command has invalid parameters i.e.
+**                  if the command length is valid and the command parameters are
+**                  inside specified range.
+**                  It returns TRUE if the command has invalid parameters.
+**
+** Returns          TRUE if the command has invalid parameters, FALSE otherwise.
+**
+*******************************************************************************/
+BOOLEAN smp_command_has_invalid_parameters(tSMP_CB *p_cb)
+{
+    UINT8 cmd_code = p_cb->rcvd_cmd_code;
+
+    SMP_TRACE_DEBUG("%s for cmd code 0x%02x", __func__, cmd_code);
+
+    if ((cmd_code > (SMP_OPCODE_MAX + 1 /* for SMP_OPCODE_PAIR_COMMITM */)) ||
+        (cmd_code < SMP_OPCODE_MIN))
+    {
+        SMP_TRACE_WARNING("Somehow received command with the RESERVED code 0x%02x", cmd_code);
+        return TRUE;
+    }
+
+    if (!(*smp_cmd_len_is_valid[cmd_code])(p_cb))
+        return TRUE;
+
+    if (!(*smp_cmd_param_ranges_are_valid[cmd_code])(p_cb))
+        return TRUE;
+
+    return FALSE;
+}
+
+/*******************************************************************************
+**
+** Function         smp_command_has_valid_fixed_length
+**
+** Description      Checks if the received command size is equal to the size
+**                  according to specs.
+**
+** Returns          TRUE if the command size is as expected, FALSE otherwise.
+**
+** Note             The command is expected to have fixed length.
+*******************************************************************************/
+BOOLEAN smp_command_has_valid_fixed_length(tSMP_CB *p_cb)
+{
+    UINT8   cmd_code = p_cb->rcvd_cmd_code;
+
+    SMP_TRACE_DEBUG("%s for cmd code 0x%02x", __func__, cmd_code);
+
+    if (p_cb->rcvd_cmd_len != smp_cmd_size_per_spec[cmd_code])
+    {
+        SMP_TRACE_WARNING("Rcvd from the peer cmd 0x%02x with invalid length\
+            0x%02x (per spec the length is 0x%02x).",
+            cmd_code, p_cb->rcvd_cmd_len, smp_cmd_size_per_spec[cmd_code]);
+        return FALSE;
+    }
+
+    return TRUE;
+}
+
+/*******************************************************************************
+**
+** Function         smp_pairing_request_response_parameters_are_valid
+**
+** Description      Validates parameter ranges in the received SMP command
+**                  pairing request or pairing response.
+**                  The parameters to validate:
+**                  IO capability,
+**                  OOB data flag,
+**                  Bonding_flags in AuthReq
+**                  Maximum encryption key size.
+**                  Returns FALSE if at least one of these parameters is out of range.
+**
+*******************************************************************************/
+BOOLEAN smp_pairing_request_response_parameters_are_valid(tSMP_CB *p_cb)
+{
+    UINT8   io_caps = p_cb->peer_io_caps;
+    UINT8   oob_flag = p_cb->peer_oob_flag;
+    UINT8   bond_flag = p_cb->peer_auth_req & 0x03; //0x03 is gen bond with appropriate mask
+    UINT8   enc_size = p_cb->peer_enc_size;
+
+    SMP_TRACE_DEBUG("%s for cmd code 0x%02x", __func__, p_cb->rcvd_cmd_code);
+
+    if (io_caps >= BTM_IO_CAP_MAX)
+    {
+        SMP_TRACE_WARNING("Rcvd from the peer cmd 0x%02x with IO Capabilty \
+            value (0x%02x) out of range).",
+            p_cb->rcvd_cmd_code, io_caps);
+        return FALSE;
+    }
+
+    if (!((oob_flag == SMP_OOB_NONE) || (oob_flag == SMP_OOB_PRESENT)))
+    {
+        SMP_TRACE_WARNING("Rcvd from the peer cmd 0x%02x with OOB data flag value \
+            (0x%02x) out of range).",
+             p_cb->rcvd_cmd_code, oob_flag);
+        return FALSE;
+    }
+
+    if (!((bond_flag == SMP_AUTH_NO_BOND) || (bond_flag == SMP_AUTH_BOND)))
+    {
+        SMP_TRACE_WARNING("Rcvd from the peer cmd 0x%02x with Bonding_Flags value (0x%02x)\
+                           out of range).",
+                           p_cb->rcvd_cmd_code, bond_flag);
+        return FALSE;
+    }
+
+    if ((enc_size < SMP_ENCR_KEY_SIZE_MIN) || (enc_size > SMP_ENCR_KEY_SIZE_MAX))
+    {
+        SMP_TRACE_WARNING("Rcvd from the peer cmd 0x%02x with Maximum Encryption \
+            Key value (0x%02x) out of range).",
+            p_cb->rcvd_cmd_code, enc_size);
+        return FALSE;
+    }
+
+    return TRUE;
+}
+
+/*******************************************************************************
+**
+** Function         smp_pairing_keypress_notification_is_valid
+**
+** Description      Validates Notification Type parameter range in the received SMP command
+**                  pairing keypress notification.
+**                  Returns FALSE if this parameter is out of range.
+**
+*******************************************************************************/
+BOOLEAN smp_pairing_keypress_notification_is_valid(tSMP_CB *p_cb)
+{
+    tBTM_SP_KEY_TYPE keypress_notification = p_cb->peer_keypress_notification;
+
+    SMP_TRACE_DEBUG("%s for cmd code 0x%02x", __func__, p_cb->rcvd_cmd_code);
+
+    if (keypress_notification >= BTM_SP_KEY_OUT_OF_RANGE)
+    {
+        SMP_TRACE_WARNING("Rcvd from the peer cmd 0x%02x with Pairing Keypress \
+            Notification value (0x%02x) out of range).",
+            p_cb->rcvd_cmd_code, keypress_notification);
+        return FALSE;
+    }
+
+    return TRUE;
+}
+
+/*******************************************************************************
+**
+** Function         smp_parameter_unconditionally_valid
+**
+** Description      Always returns TRUE.
+**
+*******************************************************************************/
+BOOLEAN smp_parameter_unconditionally_valid(UNUSED_ATTR tSMP_CB *p_cb)
+{
+    return TRUE;
+}
+
+/*******************************************************************************
+**
+** Function         smp_parameter_unconditionally_invalid
+**
+** Description      Always returns FALSE.
+**
+*******************************************************************************/
+BOOLEAN smp_parameter_unconditionally_invalid(UNUSED_ATTR tSMP_CB *p_cb)
+{
+    return FALSE;
+}
+
+/*******************************************************************************
+**
+** Function         smp_reject_unexpected_pairing_command
+**
+** Description      send pairing failure to an unexpected pairing command during
+**                  an active pairing process.
+**
+** Returns          void
+**
+*******************************************************************************/
+void smp_reject_unexpected_pairing_command(BD_ADDR bd_addr)
+{
+    UINT8 *p;
+    BT_HDR *p_buf = (BT_HDR *)osi_malloc(sizeof(BT_HDR) +
+                        SMP_PAIR_FAIL_SIZE + L2CAP_MIN_OFFSET);
+
+    SMP_TRACE_DEBUG("%s", __func__);
+
+    p = (UINT8 *)(p_buf + 1) + L2CAP_MIN_OFFSET;
+    UINT8_TO_STREAM(p, SMP_OPCODE_PAIRING_FAILED);
+    UINT8_TO_STREAM(p, SMP_PAIR_NOT_SUPPORT);
+
+    p_buf->offset = L2CAP_MIN_OFFSET;
+    p_buf->len = SMP_PAIR_FAIL_SIZE;
+
+    smp_send_msg_to_L2CAP(bd_addr, p_buf);
+}
+
+/*******************************************************************************
+** Function         smp_select_association_model
+**
+** Description      This function selects association model to use for STK
+**                  generation. Selection is based on both sides' io capability,
+**                  oob data flag and authentication request.
+**
+** Note             If Secure Connections Only mode is required locally then we
+**                  come to this point only if both sides support Secure Connections
+**                  mode, i.e. if p_cb->secure_connections_only_mode_required = TRUE then we come
+**                  to this point only if
+**                      (p_cb->peer_auth_req & SMP_SC_SUPPORT_BIT) ==
+**                      (p_cb->loc_auth_req & SMP_SC_SUPPORT_BIT) ==
+**                      SMP_SC_SUPPORT_BIT
+**
+*******************************************************************************/
+tSMP_ASSO_MODEL smp_select_association_model(tSMP_CB *p_cb)
+{
+    tSMP_ASSO_MODEL model = SMP_MODEL_OUT_OF_RANGE;
+    p_cb->le_secure_connections_mode_is_used = FALSE;
+
+    SMP_TRACE_EVENT("%s", __FUNCTION__);
+    SMP_TRACE_DEBUG("%s p_cb->peer_io_caps = %d p_cb->local_io_capability = %d",
+                       __FUNCTION__, p_cb->peer_io_caps, p_cb->local_io_capability);
+    SMP_TRACE_DEBUG("%s p_cb->peer_oob_flag = %d p_cb->loc_oob_flag = %d",
+                       __FUNCTION__, p_cb->peer_oob_flag, p_cb->loc_oob_flag);
+    SMP_TRACE_DEBUG("%s p_cb->peer_auth_req = 0x%02x p_cb->loc_auth_req = 0x%02x",
+                       __FUNCTION__, p_cb->peer_auth_req, p_cb->loc_auth_req);
+    SMP_TRACE_DEBUG("%s p_cb->secure_connections_only_mode_required = %s",
+                       __FUNCTION__, p_cb->secure_connections_only_mode_required ?
+                                    "TRUE" : "FALSE");
+
+    if ((p_cb->peer_auth_req & SMP_SC_SUPPORT_BIT) && (p_cb->loc_auth_req & SMP_SC_SUPPORT_BIT))
+    {
+        p_cb->le_secure_connections_mode_is_used = TRUE;
+    }
+
+    SMP_TRACE_DEBUG("use_sc_process = %d", p_cb->le_secure_connections_mode_is_used);
+
+    if (p_cb->le_secure_connections_mode_is_used)
+    {
+        model = smp_select_association_model_secure_connections(p_cb);
+    }
+    else
+    {
+        model = smp_select_legacy_association_model(p_cb);
+    }
+    return model;
+}
+
+/*******************************************************************************
+** Function         smp_select_legacy_association_model
+**
+** Description      This function is called to select association mode if at least
+**                  one side doesn't support secure connections.
+**
+*******************************************************************************/
+tSMP_ASSO_MODEL smp_select_legacy_association_model(tSMP_CB *p_cb)
+{
+    tSMP_ASSO_MODEL model = SMP_MODEL_OUT_OF_RANGE;
+
+    SMP_TRACE_DEBUG("%s", __func__);
+    /* if OOB data is present on both devices, then use OOB association model */
+    if (p_cb->peer_oob_flag == SMP_OOB_PRESENT && p_cb->loc_oob_flag == SMP_OOB_PRESENT)
+        return SMP_MODEL_OOB;
+
+    /* else if neither device requires MITM, then use Just Works association model */
+    if (SMP_NO_MITM_REQUIRED (p_cb->peer_auth_req) && SMP_NO_MITM_REQUIRED(p_cb->loc_auth_req))
+        return SMP_MODEL_ENCRYPTION_ONLY;
+
+    /* otherwise use IO capability to select association model */
+    if (p_cb->peer_io_caps < SMP_IO_CAP_MAX && p_cb->local_io_capability < SMP_IO_CAP_MAX)
+    {
+        if (p_cb->role == HCI_ROLE_MASTER)
+        {
+            model = smp_association_table[p_cb->role][p_cb->peer_io_caps]
+                                         [p_cb->local_io_capability];
+        }
+        else
+        {
+            model = smp_association_table[p_cb->role][p_cb->local_io_capability]
+                                         [p_cb->peer_io_caps];
+        }
+    }
+
+    return model;
+}
+
+/*******************************************************************************
+** Function         smp_select_association_model_secure_connections
+**
+** Description      This function is called to select association mode if both
+**                  sides support secure connections.
+**
+*******************************************************************************/
+tSMP_ASSO_MODEL smp_select_association_model_secure_connections(tSMP_CB *p_cb)
+{
+    tSMP_ASSO_MODEL model = SMP_MODEL_OUT_OF_RANGE;
+
+    SMP_TRACE_DEBUG("%s", __func__);
+    /* if OOB data is present on at least one device, then use OOB association model */
+    if (p_cb->peer_oob_flag == SMP_OOB_PRESENT || p_cb->loc_oob_flag == SMP_OOB_PRESENT)
+        return SMP_MODEL_SEC_CONN_OOB;
+
+    /* else if neither device requires MITM, then use Just Works association model */
+    if (SMP_NO_MITM_REQUIRED (p_cb->peer_auth_req) && SMP_NO_MITM_REQUIRED(p_cb->loc_auth_req))
+        return SMP_MODEL_SEC_CONN_JUSTWORKS;
+
+    /* otherwise use IO capability to select association model */
+    if (p_cb->peer_io_caps < SMP_IO_CAP_MAX && p_cb->local_io_capability < SMP_IO_CAP_MAX)
+    {
+        if (p_cb->role == HCI_ROLE_MASTER)
+        {
+            model = smp_association_table_sc[p_cb->role][p_cb->peer_io_caps]
+                                            [p_cb->local_io_capability];
+        }
+        else
+        {
+            model = smp_association_table_sc[p_cb->role][p_cb->local_io_capability]
+                                            [p_cb->peer_io_caps];
+        }
+    }
+
+    return model;
+}
+
+/*******************************************************************************
+** Function         smp_reverse_array
+**
+** Description      This function reverses array bytes
+**
+*******************************************************************************/
+void smp_reverse_array(UINT8 *arr, UINT8 len)
+{
+    UINT8 i =0, tmp;
+
+    SMP_TRACE_DEBUG("smp_reverse_array");
+
+    for (i = 0; i < len/2; i ++)
+    {
+        tmp = arr[i];
+        arr[i] = arr[len -1 - i];
+        arr[len -1 - i] = tmp;
+    }
+}
+
+/*******************************************************************************
+** Function         smp_calculate_random_input
+**
+** Description      This function returns random input value to be used in commitment
+**                  calculation for SC passkey entry association mode
+**                  (if bit["round"] in "random" array == 1 then returns 0x81
+**                   else returns 0x80).
+**
+** Returns          ri value
+**
+*******************************************************************************/
+UINT8 smp_calculate_random_input(UINT8 *random, UINT8 round)
+{
+    UINT8 i = round/8;
+    UINT8 j = round%8;
+    UINT8 ri;
+
+    SMP_TRACE_DEBUG("random: 0x%02x, round: %d, i: %d, j: %d", random[i], round, i, j);
+    ri = ((random[i] >> j) & 1) | 0x80;
+    SMP_TRACE_DEBUG("%s ri=0x%02x", __func__, ri);
+    return ri;
+}
+
+/*******************************************************************************
+** Function         smp_collect_local_io_capabilities
+**
+** Description      This function puts into IOcap array local device
+**                  IOCapability, OOB data, AuthReq.
+**
+** Returns          void
+**
+*******************************************************************************/
+void smp_collect_local_io_capabilities(UINT8 *iocap, tSMP_CB *p_cb)
+{
+    SMP_TRACE_DEBUG("%s", __func__);
+
+    iocap[0] = p_cb->local_io_capability;
+    iocap[1] = p_cb->loc_oob_flag;
+    iocap[2] = p_cb->loc_auth_req;
+}
+
+/*******************************************************************************
+** Function         smp_collect_peer_io_capabilities
+**
+** Description      This function puts into IOcap array peer device
+**                  IOCapability, OOB data, AuthReq.
+**
+** Returns          void
+**
+*******************************************************************************/
+void smp_collect_peer_io_capabilities(UINT8 *iocap, tSMP_CB *p_cb)
+{
+    SMP_TRACE_DEBUG("%s", __func__);
+
+    iocap[0] = p_cb->peer_io_caps;
+    iocap[1] = p_cb->peer_oob_flag;
+    iocap[2] = p_cb->peer_auth_req;
+}
+
+/*******************************************************************************
+** Function         smp_collect_local_ble_address
+**
+** Description      This function puts into le_addr array local device le address:
+**                  le_addr[0-5] = local BD ADDR,
+**                  le_addr[6] = local le address type (PUBLIC/RANDOM).
+**
+** Returns          void
+**
+*******************************************************************************/
+void smp_collect_local_ble_address(UINT8 *le_addr, tSMP_CB *p_cb)
+{
+    tBLE_ADDR_TYPE  addr_type = 0;
+    BD_ADDR         bda;
+    UINT8           *p = le_addr;
+
+    SMP_TRACE_DEBUG("%s", __func__);
+
+    BTM_ReadConnectionAddr( p_cb->pairing_bda, bda, &addr_type);
+    BDADDR_TO_STREAM(p, bda);
+    UINT8_TO_STREAM(p, addr_type);
+}
+
+/*******************************************************************************
+** Function         smp_collect_peer_ble_address
+**
+** Description      This function puts into le_addr array peer device le address:
+**                  le_addr[0-5] = peer BD ADDR,
+**                  le_addr[6] = peer le address type (PUBLIC/RANDOM).
+**
+** Returns          void
+**
+*******************************************************************************/
+void smp_collect_peer_ble_address(UINT8 *le_addr, tSMP_CB *p_cb)
+{
+    tBLE_ADDR_TYPE  addr_type = 0;
+    BD_ADDR         bda;
+    UINT8           *p = le_addr;
+
+    SMP_TRACE_DEBUG("%s", __func__);
+
+    if (!BTM_ReadRemoteConnectionAddr(p_cb->pairing_bda, bda, &addr_type))
+    {
+        SMP_TRACE_ERROR("can not collect peer le addr information for unknown device");
+        return;
+    }
+
+    BDADDR_TO_STREAM(p, bda);
+    UINT8_TO_STREAM(p, addr_type);
+}
+
+/*******************************************************************************
+** Function         smp_check_commitment
+**
+** Description      This function compares peer commitment values:
+**                  - expected (i.e. calculated locally),
+**                  - received from the peer.
+**
+** Returns          TRUE  if the values are the same
+**                  FALSE otherwise
+**
+*******************************************************************************/
+BOOLEAN smp_check_commitment(tSMP_CB *p_cb)
+{
+    BT_OCTET16 expected;
+
+    SMP_TRACE_DEBUG("%s", __func__);
+
+    smp_calculate_peer_commitment(p_cb, expected);
+    print128(expected, (const UINT8 *)"calculated peer commitment");
+    print128(p_cb->remote_commitment, (const UINT8 *)"received peer commitment");
+
+    if (memcmp(p_cb->remote_commitment, expected, BT_OCTET16_LEN))
+    {
+        SMP_TRACE_WARNING("Commitment check fails");
+        return FALSE;
+    }
+
+    SMP_TRACE_DEBUG("Commitment check succeeds");
+    return TRUE;
+}
+
+/*******************************************************************************
+**
+** Function         smp_save_secure_connections_long_term_key
+**
+** Description      The function saves SC LTK as BLE key for future use as local
+**                  and/or peer key.
+**
+** Returns          void
+**
+*******************************************************************************/
+void smp_save_secure_connections_long_term_key(tSMP_CB *p_cb)
+{
+    tBTM_LE_LENC_KEYS   lle_key;
+    tBTM_LE_PENC_KEYS   ple_key;
+
+    SMP_TRACE_DEBUG("%s-Save LTK as local LTK key", __func__);
+    memcpy(lle_key.ltk, p_cb->ltk, BT_OCTET16_LEN);
+    lle_key.div = 0;
+    lle_key.key_size = p_cb->loc_enc_size;
+    lle_key.sec_level = p_cb->sec_level;
+    btm_sec_save_le_key(p_cb->pairing_bda, BTM_LE_KEY_LENC, (tBTM_LE_KEY_VALUE *)&lle_key, TRUE);
+
+    SMP_TRACE_DEBUG("%s-Save LTK as peer LTK key", __func__);
+    ple_key.ediv = 0;
+    memset(ple_key.rand, 0, BT_OCTET8_LEN);
+    memcpy(ple_key.ltk, p_cb->ltk, BT_OCTET16_LEN);
+    ple_key.sec_level = p_cb->sec_level;
+    ple_key.key_size  = p_cb->loc_enc_size;
+    btm_sec_save_le_key(p_cb->pairing_bda, BTM_LE_KEY_PENC, (tBTM_LE_KEY_VALUE *)&ple_key, TRUE);
+}
+
+/*******************************************************************************
+**
+** Function         smp_calculate_f5_mackey_and_long_term_key
+**
+** Description      The function calculates MacKey and LTK and saves them in CB.
+**                  To calculate MacKey and LTK it calls smp_calc_f5(...).
+**                  MacKey is used in dhkey calculation, LTK is used to encrypt
+**                  the link.
+**
+** Returns          FALSE if out of resources, TRUE otherwise.
+**
+*******************************************************************************/
+BOOLEAN smp_calculate_f5_mackey_and_long_term_key(tSMP_CB *p_cb)
+{
+    UINT8 a[7];
+    UINT8 b[7];
+    UINT8 *p_na;
+    UINT8 *p_nb;
+
+    SMP_TRACE_DEBUG("%s", __func__);
+
+    if (p_cb->role == HCI_ROLE_MASTER)
+    {
+        smp_collect_local_ble_address(a, p_cb);
+        smp_collect_peer_ble_address(b, p_cb);
+        p_na = p_cb->rand;
+        p_nb = p_cb->rrand;
+    }
+    else
+    {
+        smp_collect_local_ble_address(b, p_cb);
+        smp_collect_peer_ble_address(a, p_cb);
+        p_na = p_cb->rrand;
+        p_nb = p_cb->rand;
+    }
+
+    if(!smp_calculate_f5(p_cb->dhkey, p_na, p_nb, a, b, p_cb->mac_key, p_cb->ltk))
+    {
+        SMP_TRACE_ERROR("%s failed", __func__);
+        return FALSE;
+    }
+
+    SMP_TRACE_EVENT ("%s is completed", __func__);
+    return TRUE;
+}
+
+/*******************************************************************************
+**
+** Function         smp_request_oob_data
+**
+** Description      Requests application to provide OOB data.
+**
+** Returns          TRUE - OOB data has to be provided by application
+**                  FALSE - otherwise (unexpected)
+**
+*******************************************************************************/
+BOOLEAN smp_request_oob_data(tSMP_CB *p_cb)
+{
+    tSMP_OOB_DATA_TYPE req_oob_type = SMP_OOB_INVALID_TYPE;
+
+    SMP_TRACE_DEBUG("%s", __func__);
+
+    if (p_cb->peer_oob_flag == SMP_OOB_PRESENT && p_cb->loc_oob_flag == SMP_OOB_PRESENT)
+    {
+        /* both local and peer rcvd data OOB */
+        req_oob_type = SMP_OOB_BOTH;
+    }
+    else if (p_cb->peer_oob_flag == SMP_OOB_PRESENT)
+    {
+        /* peer rcvd OOB local data, local didn't receive OOB peer data */
+        req_oob_type = SMP_OOB_LOCAL;
+    }
+    else if (p_cb->loc_oob_flag == SMP_OOB_PRESENT)
+    {
+        req_oob_type = SMP_OOB_PEER;
+    }
+
+    SMP_TRACE_DEBUG("req_oob_type = %d", req_oob_type);
+
+    if (req_oob_type == SMP_OOB_INVALID_TYPE)
+        return FALSE;
+
+    p_cb->req_oob_type = req_oob_type;
+    p_cb->cb_evt = SMP_SC_OOB_REQ_EVT;
+    smp_sm_event(p_cb, SMP_TK_REQ_EVT, &req_oob_type);
+
+    return TRUE;
+}
+
+
+#endif
+
diff --git a/rtkbt/code/bt/stack/srvc/srvc_battery.c b/rtkbt/code/bt/stack/srvc/srvc_battery.c
new file mode 100755
index 0000000..90632df
--- /dev/null
+++ b/rtkbt/code/bt/stack/srvc/srvc_battery.c
@@ -0,0 +1,408 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2013 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#include "bt_target.h"
+#include "bt_utils.h"
+#include "gatt_api.h"
+#include "gatt_int.h"
+#include "srvc_eng_int.h"
+#include "srvc_battery_int.h"
+
+#if BLE_INCLUDED == TRUE
+
+#define BA_MAX_CHAR_NUM          1
+#define BA_MAX_ATTR_NUM          (BA_MAX_CHAR_NUM * 5 + 1) /* max 3 descriptors, 1 desclration and 1 value */
+
+#ifndef BATTER_LEVEL_PROP
+#define BATTER_LEVEL_PROP           (GATT_CHAR_PROP_BIT_READ|GATT_CHAR_PROP_BIT_NOTIFY)
+#endif
+
+
+#ifndef BATTER_LEVEL_PERM
+#define BATTER_LEVEL_PERM           (GATT_PERM_READ)
+#endif
+
+tBATTERY_CB battery_cb;
+
+
+/*******************************************************************************
+**   battery_valid_handle_range
+**
+**   validate a handle to be a DIS attribute handle or not.
+*******************************************************************************/
+BOOLEAN battery_valid_handle_range(UINT16 handle)
+{
+    UINT8       i = 0;
+    tBA_INST    *p_inst = &battery_cb.battery_inst[0];
+
+    for (;i < BA_MAX_INT_NUM; i ++, p_inst++)
+    {
+        if (handle == p_inst->ba_level_hdl ||
+            handle == p_inst->clt_cfg_hdl ||
+            handle == p_inst->rpt_ref_hdl ||
+            handle == p_inst->pres_fmt_hdl )
+        {
+            return TRUE;
+        }
+    }
+    return FALSE;
+}
+/*******************************************************************************
+**   battery_s_write_attr_value
+**
+**   Process write DIS attribute request.
+*******************************************************************************/
+UINT8 battery_s_write_attr_value(UINT8 clcb_idx, tGATT_WRITE_REQ * p_value,
+                                 tGATT_STATUS *p_status)
+{
+    UINT8       *p = p_value->value, i;
+    UINT16      handle = p_value->handle;
+    tBA_INST    *p_inst = &battery_cb.battery_inst[0];
+    tGATT_STATUS    st = GATT_NOT_FOUND;
+    tBA_WRITE_DATA   cfg;
+    UINT8       act = SRVC_ACT_RSP;
+
+    for (i = 0; i < BA_MAX_INT_NUM; i ++, p_inst ++)
+    {
+        /* read battery level */
+        if (handle == p_inst->clt_cfg_hdl)
+        {
+            memcpy(cfg.remote_bda, srvc_eng_cb.clcb[clcb_idx].bda, BD_ADDR_LEN);
+            STREAM_TO_UINT16(cfg.clt_cfg, p);
+
+            if (p_inst->p_cback)
+            {
+                p_inst->pending_clcb_idx = clcb_idx;
+                p_inst->pending_evt = BA_WRITE_CLT_CFG_REQ;
+                p_inst->pending_handle = handle;
+                cfg.need_rsp = p_value->need_rsp;
+                act = SRVC_ACT_PENDING;
+
+                (* p_inst->p_cback)(p_inst->app_id, BA_WRITE_CLT_CFG_REQ, &cfg);
+            }
+        }
+        else /* all other handle is not writable */
+        {
+            st = GATT_WRITE_NOT_PERMIT;
+            break;
+        }
+    }
+    *p_status = st;
+
+    return act;
+}
+/*******************************************************************************
+**   BA Attributes Database Server Request callback
+*******************************************************************************/
+UINT8 battery_s_read_attr_value (UINT8 clcb_idx, UINT16 handle, tGATT_VALUE *p_value, BOOLEAN is_long, tGATT_STATUS* p_status)
+{
+    UINT8       i;
+    tBA_INST    *p_inst = &battery_cb.battery_inst[0];
+    tGATT_STATUS    st = GATT_NOT_FOUND;
+    UINT8       act = SRVC_ACT_RSP;
+    UNUSED(p_value);
+
+    for (i = 0; i < BA_MAX_INT_NUM; i ++, p_inst ++)
+    {
+        /* read battery level */
+        if (handle == p_inst->ba_level_hdl ||
+            handle == p_inst->clt_cfg_hdl ||
+            handle == p_inst->rpt_ref_hdl ||
+            handle == p_inst->pres_fmt_hdl)
+            {
+            if (is_long)
+                st = GATT_NOT_LONG;
+
+                if (p_inst->p_cback)
+                {
+                if (handle == p_inst->ba_level_hdl) p_inst->pending_evt = BA_READ_LEVEL_REQ;
+                if (handle == p_inst->clt_cfg_hdl) p_inst->pending_evt = BA_READ_CLT_CFG_REQ;
+                if (handle == p_inst->pres_fmt_hdl) p_inst->pending_evt = BA_READ_PRE_FMT_REQ;
+                if (handle == p_inst->rpt_ref_hdl) p_inst->pending_evt = BA_READ_RPT_REF_REQ ;
+
+                    p_inst->pending_clcb_idx = clcb_idx;
+                    p_inst->pending_handle = handle;
+                    act = SRVC_ACT_PENDING;
+
+                (* p_inst->p_cback)(p_inst->app_id, p_inst->pending_evt, NULL);
+                }
+            else /* application is not registered */
+                st = GATT_ERR_UNLIKELY;
+                break;
+            }
+        /* else attribute not found */
+    }
+
+
+    *p_status = st;
+    return act;
+}
+
+
+/*******************************************************************************
+**
+** Function         battery_gatt_c_read_ba_req
+**
+** Description      Read remote device BA level attribute request.
+**
+** Returns          void
+**
+*******************************************************************************/
+BOOLEAN battery_gatt_c_read_ba_req(UINT16 conn_id)
+{
+    UNUSED(conn_id);
+    return TRUE;
+}
+
+/*******************************************************************************
+**
+** Function         battery_c_cmpl_cback
+**
+** Description      Client operation complete callback.
+**
+** Returns          void
+**
+*******************************************************************************/
+void battery_c_cmpl_cback (tSRVC_CLCB *p_clcb, tGATTC_OPTYPE op,
+                              tGATT_STATUS status, tGATT_CL_COMPLETE *p_data)
+{
+    UNUSED(p_clcb);
+    UNUSED(op);
+    UNUSED(status);
+    UNUSED(p_data);
+}
+
+
+/*******************************************************************************
+**
+** Function         Battery_Instantiate
+**
+** Description      Instantiate a Battery service
+**
+*******************************************************************************/
+UINT16 Battery_Instantiate (UINT8 app_id, tBA_REG_INFO *p_reg_info)
+{
+    tBT_UUID            uuid = {LEN_UUID_16, {UUID_SERVCLASS_BATTERY}};
+    UINT16              srvc_hdl;
+    tGATT_STATUS        status = GATT_ERROR;
+    tBA_INST            *p_inst;
+    tGATT_CHAR_PROP     prop = GATT_CHAR_PROP_BIT_READ;
+
+    if (battery_cb.inst_id == BA_MAX_INT_NUM)
+    {
+        GATT_TRACE_ERROR("MAX battery service has been reached");
+        return 0;
+    }
+
+    p_inst = &battery_cb.battery_inst[battery_cb.inst_id];
+
+    srvc_hdl = GATTS_CreateService (srvc_eng_cb.gatt_if ,
+                                            &uuid,
+                                            battery_cb.inst_id ,
+                                            BA_MAX_ATTR_NUM,
+                                            p_reg_info->is_pri);
+
+    if (srvc_hdl == 0)
+    {
+        GATT_TRACE_ERROR("Can not create service, Battery_Instantiate() failed!");
+        return 0;
+    }
+
+    battery_cb.inst_id ++;
+
+    p_inst->app_id  =   app_id;
+    p_inst->p_cback =   p_reg_info->p_cback;
+
+    /* add battery level
+    */
+    uuid.uu.uuid16 = GATT_UUID_BATTERY_LEVEL;
+
+    if (p_reg_info->ba_level_descr & BA_LEVEL_NOTIFY)
+        prop |= GATT_CHAR_PROP_BIT_NOTIFY;
+
+    if ((p_inst->ba_level_hdl  = GATTS_AddCharacteristic(srvc_hdl,
+                                                &uuid,
+                                                BATTER_LEVEL_PERM,
+                                                prop)) == 0)
+    {
+        GATT_TRACE_ERROR("Can not add Battery Level, Battery_Instantiate() failed!");
+        status = GATT_ERROR;
+    }
+    else
+    {
+        if (p_reg_info->ba_level_descr & BA_LEVEL_NOTIFY)
+        {
+            uuid.uu.uuid16 = GATT_UUID_CHAR_CLIENT_CONFIG;
+            p_inst->clt_cfg_hdl  = GATTS_AddCharDescriptor(srvc_hdl,
+                                                           (GATT_PERM_READ|GATT_PERM_WRITE),
+                                                           &uuid);
+            if (p_inst->clt_cfg_hdl == 0)
+            {
+                GATT_TRACE_ERROR("Add battery level client notification FAILED!");
+            }
+        }
+        /* need presentation format descriptor? */
+        if (p_reg_info->ba_level_descr & BA_LEVEL_PRE_FMT)
+        {
+            uuid.uu.uuid16 = GATT_UUID_CHAR_PRESENT_FORMAT;
+            if ( (p_inst->pres_fmt_hdl = GATTS_AddCharDescriptor(srvc_hdl,
+                                                                 GATT_PERM_READ,
+                                                                 &uuid))
+                                       == 0)
+            {
+                GATT_TRACE_ERROR("Add battery level presentation format descriptor FAILED!");
+            }
+
+        }
+        /* need presentation format descriptor? */
+        if (p_reg_info->ba_level_descr & BA_LEVEL_RPT_REF)
+        {
+            uuid.uu.uuid16 = GATT_UUID_RPT_REF_DESCR;
+            if ( (p_inst->rpt_ref_hdl = GATTS_AddCharDescriptor(srvc_hdl,
+                                                                GATT_PERM_READ,
+                                                                &uuid))
+                                       == 0)
+            {
+                GATT_TRACE_ERROR("Add battery level report reference descriptor FAILED!");
+            }
+
+        }
+        /* start service
+        */
+        status = GATTS_StartService (srvc_eng_cb.gatt_if, srvc_hdl, p_reg_info->transport);
+    }
+
+    if (status != GATT_SUCCESS)
+    {
+        battery_cb.inst_id --;
+        uuid.uu.uuid16 = UUID_SERVCLASS_BATTERY;
+        GATTS_DeleteService(srvc_eng_cb.gatt_if, &uuid, battery_cb.inst_id);
+        srvc_hdl = 0;
+    }
+
+    return srvc_hdl;
+}
+/*******************************************************************************
+**
+** Function         Battery_Rsp
+**
+** Description      Respond to a battery service request
+**
+*******************************************************************************/
+void Battery_Rsp (UINT8 app_id, tGATT_STATUS st, UINT8 event, tBA_RSP_DATA *p_rsp)
+{
+    tBA_INST *p_inst = &battery_cb.battery_inst[0];
+    tGATTS_RSP  rsp;
+    UINT8   *pp;
+
+    UINT8   i = 0;
+    while (i < BA_MAX_INT_NUM)
+    {
+        if (p_inst->app_id == app_id && p_inst->ba_level_hdl != 0)
+            break;
+        i ++;
+    }
+
+    if (i == BA_MAX_INT_NUM)
+        return;
+
+    memset(&rsp, 0, sizeof(tGATTS_RSP));
+
+    if (p_inst->pending_evt == event)
+    {
+        switch (event)
+        {
+        case BA_READ_CLT_CFG_REQ:
+            rsp.attr_value.handle = p_inst->pending_handle;
+            rsp.attr_value.len = 2;
+            pp = rsp.attr_value.value;
+            UINT16_TO_STREAM(pp, p_rsp->clt_cfg);
+            srvc_sr_rsp(p_inst->pending_clcb_idx, st, &rsp);
+            break;
+
+        case BA_READ_LEVEL_REQ:
+            rsp.attr_value.handle = p_inst->pending_handle;
+            rsp.attr_value.len = 1;
+            pp = rsp.attr_value.value;
+            UINT8_TO_STREAM(pp, p_rsp->ba_level);
+            srvc_sr_rsp(p_inst->pending_clcb_idx, st, &rsp);
+            break;
+
+        case BA_WRITE_CLT_CFG_REQ:
+            srvc_sr_rsp(p_inst->pending_clcb_idx, st, NULL);
+            break;
+
+        case BA_READ_RPT_REF_REQ:
+            rsp.attr_value.handle = p_inst->pending_handle;
+            rsp.attr_value.len = 2;
+            pp = rsp.attr_value.value;
+            UINT8_TO_STREAM(pp, p_rsp->rpt_ref.rpt_id);
+            UINT8_TO_STREAM(pp, p_rsp->rpt_ref.rpt_type);
+            srvc_sr_rsp(p_inst->pending_clcb_idx, st, &rsp);
+            break;
+
+        default:
+            break;
+        }
+        p_inst->pending_clcb_idx = 0;
+        p_inst->pending_evt = 0;
+        p_inst->pending_handle = 0;
+    }
+    return;
+}
+/*******************************************************************************
+**
+** Function         Battery_Notify
+**
+** Description      Send battery level notification
+**
+*******************************************************************************/
+void Battery_Notify (UINT8 app_id, BD_ADDR remote_bda, UINT8 battery_level)
+{
+    tBA_INST *p_inst = &battery_cb.battery_inst[0];
+    UINT8    i = 0;
+
+    while (i < BA_MAX_INT_NUM)
+    {
+        if (p_inst->app_id == app_id && p_inst->ba_level_hdl != 0)
+            break;
+        i ++;
+    }
+
+    if (i == BA_MAX_INT_NUM || p_inst->clt_cfg_hdl == 0)
+        return;
+
+    srvc_sr_notify(remote_bda, p_inst->ba_level_hdl, 1, &battery_level);
+
+}
+/*******************************************************************************
+**
+** Function         Battery_ReadBatteryLevel
+**
+** Description      Read remote device Battery Level information.
+**
+** Returns          void
+**
+*******************************************************************************/
+BOOLEAN Battery_ReadBatteryLevel(BD_ADDR peer_bda)
+{
+    UNUSED(peer_bda);
+    /* to be implemented */
+    return TRUE;
+}
+#endif  /* BLE_INCLUDED */
diff --git a/rtkbt/code/bt/stack/srvc/srvc_battery_int.h b/rtkbt/code/bt/stack/srvc/srvc_battery_int.h
new file mode 100755
index 0000000..a9f81ae
--- /dev/null
+++ b/rtkbt/code/bt/stack/srvc/srvc_battery_int.h
@@ -0,0 +1,81 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#ifndef SRVC_BATTERY_INT_H
+#define SRVC_BATTERY_INT_H
+
+#include "bt_target.h"
+#include "srvc_api.h"
+#include "gatt_api.h"
+
+#ifndef BA_MAX_INT_NUM
+#define BA_MAX_INT_NUM     4
+#endif
+
+#define BATTERY_LEVEL_SIZE      1
+
+
+typedef struct
+{
+    UINT8           app_id;
+    UINT16          ba_level_hdl;
+    UINT16          clt_cfg_hdl;
+    UINT16          rpt_ref_hdl;
+    UINT16          pres_fmt_hdl;
+
+    tBA_CBACK       *p_cback;
+
+    UINT16          pending_handle;
+    UINT8           pending_clcb_idx;
+    UINT8           pending_evt;
+
+}tBA_INST;
+
+typedef struct
+{
+    tBA_INST                battery_inst[BA_MAX_INT_NUM];
+    UINT8                   inst_id;
+    BOOLEAN                 enabled;
+
+}tBATTERY_CB;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Global GATT data */
+#if GATT_DYNAMIC_MEMORY == FALSE
+extern tBATTERY_CB battery_cb;
+#else
+extern tBATTERY_CB *battery_cb_ptr;
+#define battery_cb (*battery_cb_ptr)
+#endif
+
+
+extern BOOLEAN battery_valid_handle_range(UINT16 handle);
+
+extern UINT8 battery_s_write_attr_value(UINT8 clcb_idx, tGATT_WRITE_REQ * p_value,
+                                 tGATT_STATUS *p_status);
+extern UINT8 battery_s_read_attr_value (UINT8 clcb_idx, UINT16 handle, tGATT_VALUE *p_value, BOOLEAN is_long, tGATT_STATUS* p_status);
+
+
+
+#ifdef __cplusplus
+}
+#endif
+#endif
diff --git a/rtkbt/code/bt/stack/srvc/srvc_dis.c b/rtkbt/code/bt/stack/srvc/srvc_dis.c
new file mode 100755
index 0000000..c17c660
--- /dev/null
+++ b/rtkbt/code/bt/stack/srvc/srvc_dis.c
@@ -0,0 +1,482 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2013 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_srvc"
+
+#include "bt_target.h"
+#include "bt_utils.h"
+#include "gatt_api.h"
+#include "gatt_int.h"
+#include "osi/include/log.h"
+#include "srvc_dis_int.h"
+#include "srvc_eng_int.h"
+
+#if BLE_INCLUDED == TRUE
+
+#define DIS_MAX_NUM_INC_SVR       0
+#define DIS_MAX_CHAR_NUM          9
+#define DIS_MAX_ATTR_NUM          (DIS_MAX_CHAR_NUM * 2 + DIS_MAX_NUM_INC_SVR + 1)
+
+#ifndef DIS_ATTR_DB_SIZE
+#define DIS_ATTR_DB_SIZE      GATT_DB_MEM_SIZE(DIS_MAX_NUM_INC_SVR, DIS_MAX_CHAR_NUM, 0)
+#endif
+
+#define UINT64_TO_STREAM(p, u64) {*(p)++ = (UINT8)(u64);       *(p)++ = (UINT8)((u64) >> 8);*(p)++ = (UINT8)((u64) >> 16); *(p)++ = (UINT8)((u64) >> 24); \
+                                    *(p)++ = (UINT8)((u64) >> 32); *(p)++ = (UINT8)((u64) >> 40);*(p)++ = (UINT8)((u64) >> 48); *(p)++ = (UINT8)((u64) >> 56);}
+
+#define STREAM_TO_UINT64(u64, p) {u64 = (((UINT64)(*(p))) + ((((UINT64)(*((p) + 1)))) << 8) + ((((UINT64)(*((p) + 2)))) << 16) + ((((UINT64)(*((p) + 3)))) << 24) \
+                                  + ((((UINT64)(*((p) + 4)))) << 32) + ((((UINT64)(*((p) + 5)))) << 40) + ((((UINT64)(*((p) + 6)))) << 48) + ((((UINT64)(*((p) + 7)))) << 56)); (p) += 8;}
+
+static const UINT16  dis_attr_uuid[DIS_MAX_CHAR_NUM] =
+{
+    GATT_UUID_SYSTEM_ID,
+    GATT_UUID_MODEL_NUMBER_STR,
+    GATT_UUID_SERIAL_NUMBER_STR,
+    GATT_UUID_FW_VERSION_STR,
+    GATT_UUID_HW_VERSION_STR,
+    GATT_UUID_SW_VERSION_STR,
+    GATT_UUID_MANU_NAME,
+    GATT_UUID_IEEE_DATA,
+    GATT_UUID_PNP_ID
+};
+
+tDIS_CB dis_cb;
+
+static tDIS_ATTR_MASK dis_uuid_to_attr(UINT16 uuid)
+{
+    switch (uuid)
+    {
+        case GATT_UUID_SYSTEM_ID:
+            return DIS_ATTR_SYS_ID_BIT;
+        case GATT_UUID_MODEL_NUMBER_STR:
+            return DIS_ATTR_MODEL_NUM_BIT;
+        case GATT_UUID_SERIAL_NUMBER_STR:
+            return DIS_ATTR_SERIAL_NUM_BIT;
+        case GATT_UUID_FW_VERSION_STR:
+            return DIS_ATTR_FW_NUM_BIT;
+        case GATT_UUID_HW_VERSION_STR:
+            return DIS_ATTR_HW_NUM_BIT;
+        case GATT_UUID_SW_VERSION_STR:
+            return DIS_ATTR_SW_NUM_BIT;
+        case GATT_UUID_MANU_NAME:
+            return DIS_ATTR_MANU_NAME_BIT;
+        case GATT_UUID_IEEE_DATA:
+            return DIS_ATTR_IEEE_DATA_BIT;
+        case GATT_UUID_PNP_ID:
+            return DIS_ATTR_PNP_ID_BIT;
+        default:
+            return 0;
+    };
+}
+
+/*******************************************************************************
+**   dis_valid_handle_range
+**
+**   validate a handle to be a DIS attribute handle or not.
+*******************************************************************************/
+BOOLEAN dis_valid_handle_range(UINT16 handle)
+{
+    if (handle >= dis_cb.service_handle && handle <= dis_cb.max_handle)
+        return TRUE;
+    else
+        return FALSE;
+}
+/*******************************************************************************
+**   dis_write_attr_value
+**
+**   Process write DIS attribute request.
+*******************************************************************************/
+UINT8 dis_write_attr_value(tGATT_WRITE_REQ * p_data, tGATT_STATUS *p_status)
+{
+    UNUSED(p_data);
+
+    *p_status = GATT_WRITE_NOT_PERMIT;
+    return SRVC_ACT_RSP;
+}
+/*******************************************************************************
+**   DIS Attributes Database Server Request callback
+*******************************************************************************/
+UINT8 dis_read_attr_value (UINT8 clcb_idx, UINT16 handle, tGATT_VALUE *p_value,
+                           BOOLEAN is_long, tGATT_STATUS *p_status)
+{
+    tDIS_DB_ENTRY   *p_db_attr = dis_cb.dis_attr;
+    UINT8           *p = p_value->value, i, *pp;
+    UINT16          offset = p_value->offset;
+    UINT8           act = SRVC_ACT_RSP;
+    tGATT_STATUS    st = GATT_NOT_FOUND;
+    UNUSED(clcb_idx);
+
+    for (i = 0; i < DIS_MAX_CHAR_NUM; i ++, p_db_attr ++)
+    {
+        if (handle == p_db_attr->handle)
+        {
+            if ((p_db_attr->uuid == GATT_UUID_PNP_ID || p_db_attr->uuid == GATT_UUID_SYSTEM_ID)&&
+                is_long == TRUE)
+            {
+                st = GATT_NOT_LONG;
+                break;
+            }
+            st = GATT_SUCCESS;
+
+            switch (p_db_attr->uuid)
+            {
+                case GATT_UUID_MANU_NAME:
+                case GATT_UUID_MODEL_NUMBER_STR:
+                case GATT_UUID_SERIAL_NUMBER_STR:
+                case GATT_UUID_FW_VERSION_STR:
+                case GATT_UUID_HW_VERSION_STR:
+                case GATT_UUID_SW_VERSION_STR:
+                case GATT_UUID_IEEE_DATA:
+                    pp = dis_cb.dis_value.data_string[p_db_attr->uuid - GATT_UUID_MODEL_NUMBER_STR];
+                    if (pp != NULL)
+                    {
+                        if (strlen ((char *)pp) > GATT_MAX_ATTR_LEN)
+                            p_value->len = GATT_MAX_ATTR_LEN;
+                        else
+                            p_value->len = (UINT16)strlen ((char *)pp);
+                    }
+                    else
+                        p_value->len = 0;
+
+                    if (offset > p_value->len)
+                    {
+                        st = GATT_INVALID_OFFSET;
+                        break;
+                    }
+                    else
+                    {
+                        p_value->len -= offset;
+                        pp += offset;
+                        ARRAY_TO_STREAM(p, pp, p_value->len);
+                        GATT_TRACE_EVENT("GATT_UUID_MANU_NAME len=0x%04x", p_value->len);
+                    }
+                    break;
+
+                case GATT_UUID_SYSTEM_ID:
+                    UINT64_TO_STREAM(p, dis_cb.dis_value.system_id); /* int_min */
+                    p_value->len = DIS_SYSTEM_ID_SIZE;
+                    break;
+
+                case  GATT_UUID_PNP_ID:
+                    UINT8_TO_STREAM(p, dis_cb.dis_value.pnp_id.vendor_id_src);
+                    UINT16_TO_STREAM(p, dis_cb.dis_value.pnp_id.vendor_id);
+                    UINT16_TO_STREAM(p, dis_cb.dis_value.pnp_id.product_id);
+                    UINT16_TO_STREAM(p, dis_cb.dis_value.pnp_id.product_version);
+                    p_value->len = DIS_PNP_ID_SIZE;
+                    break;
+
+            }
+            break;
+        }
+    }
+    *p_status = st;
+    return act;
+}
+
+/*******************************************************************************
+**
+** Function         dis_gatt_c_read_dis_value_cmpl
+**
+** Description      Client read DIS database complete callback.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void dis_gatt_c_read_dis_value_cmpl(UINT16 conn_id)
+{
+    tSRVC_CLCB *p_clcb = srvc_eng_find_clcb_by_conn_id(conn_id);
+
+    dis_cb.dis_read_uuid_idx = 0xff;
+
+    srvc_eng_release_channel(conn_id);
+
+    if (dis_cb.p_read_dis_cback && p_clcb)
+    {
+        LOG_INFO(LOG_TAG, "%s conn_id:%d attr_mask = 0x%04x", __func__, conn_id,
+                p_clcb->dis_value.attr_mask);
+
+        (*dis_cb.p_read_dis_cback)(p_clcb->bda, &p_clcb->dis_value);
+        dis_cb.p_read_dis_cback = NULL;
+    }
+}
+
+/*******************************************************************************
+**
+** Function         dis_gatt_c_read_dis_req
+**
+** Description      Read remote device DIS attribute request.
+**
+** Returns          void
+**
+*******************************************************************************/
+BOOLEAN dis_gatt_c_read_dis_req(UINT16 conn_id)
+{
+    tGATT_READ_PARAM   param;
+
+    memset(&param, 0, sizeof(tGATT_READ_PARAM));
+
+    param.service.uuid.len       = LEN_UUID_16;
+    param.service.s_handle       = 1;
+    param.service.e_handle       = 0xFFFF;
+    param.service.auth_req       = 0;
+
+    while (dis_cb.dis_read_uuid_idx < DIS_MAX_CHAR_NUM)
+    {
+        if (dis_uuid_to_attr(dis_attr_uuid[dis_cb.dis_read_uuid_idx]) &
+                dis_cb.request_mask)
+        {
+             param.service.uuid.uu.uuid16 = dis_attr_uuid[dis_cb.dis_read_uuid_idx];
+
+             if (GATTC_Read(conn_id, GATT_READ_BY_TYPE, &param) == GATT_SUCCESS)
+                 return TRUE;
+
+            GATT_TRACE_ERROR ("Read DISInfo: 0x%04x GATT_Read Failed", param.service.uuid.uu.uuid16);
+        }
+
+        dis_cb.dis_read_uuid_idx++;
+    }
+
+    dis_gatt_c_read_dis_value_cmpl(conn_id);
+
+    return(FALSE);
+}
+
+/*******************************************************************************
+**
+** Function         dis_c_cmpl_cback
+**
+** Description      Client operation complete callback.
+**
+** Returns          void
+**
+*******************************************************************************/
+void dis_c_cmpl_cback (tSRVC_CLCB *p_clcb, tGATTC_OPTYPE op,
+                              tGATT_STATUS status, tGATT_CL_COMPLETE *p_data)
+{
+    UINT16      read_type = dis_attr_uuid[dis_cb.dis_read_uuid_idx];
+    UINT8       *pp = NULL, *p_str;
+    UINT16      conn_id = p_clcb->conn_id;
+
+    GATT_TRACE_EVENT ("dis_c_cmpl_cback() - op_code: 0x%02x  status: 0x%02x  \
+                        read_type: 0x%04x", op, status, read_type);
+
+    if (op != GATTC_OPTYPE_READ)
+        return;
+
+    if (p_data != NULL && status == GATT_SUCCESS)
+    {
+        pp = p_data->att_value.value;
+
+        switch (read_type)
+        {
+            case GATT_UUID_SYSTEM_ID:
+                GATT_TRACE_EVENT ("DIS_ATTR_SYS_ID_BIT");
+                if (p_data->att_value.len == DIS_SYSTEM_ID_SIZE)
+                {
+                    p_clcb->dis_value.attr_mask |= DIS_ATTR_SYS_ID_BIT;
+                    /* save system ID*/
+                    STREAM_TO_UINT64 (p_clcb->dis_value.system_id, pp);
+                }
+                break;
+
+            case GATT_UUID_PNP_ID:
+                if (p_data->att_value.len == DIS_PNP_ID_SIZE)
+                {
+                    p_clcb->dis_value.attr_mask |= DIS_ATTR_PNP_ID_BIT;
+                    STREAM_TO_UINT8 (p_clcb->dis_value.pnp_id.vendor_id_src, pp);
+                    STREAM_TO_UINT16 (p_clcb->dis_value.pnp_id.vendor_id, pp);
+                    STREAM_TO_UINT16 (p_clcb->dis_value.pnp_id.product_id, pp);
+                    STREAM_TO_UINT16 (p_clcb->dis_value.pnp_id.product_version, pp);
+                }
+                break;
+
+            case GATT_UUID_MODEL_NUMBER_STR:
+            case GATT_UUID_SERIAL_NUMBER_STR:
+            case GATT_UUID_FW_VERSION_STR:
+            case GATT_UUID_HW_VERSION_STR:
+            case GATT_UUID_SW_VERSION_STR:
+            case GATT_UUID_MANU_NAME:
+            case GATT_UUID_IEEE_DATA:
+                p_str = p_clcb->dis_value.data_string[read_type - GATT_UUID_MODEL_NUMBER_STR];
+                osi_free(p_str);
+                p_str = (UINT8 *)osi_malloc(p_data->att_value.len + 1);
+                p_clcb->dis_value.attr_mask |= dis_uuid_to_attr(read_type);
+                memcpy(p_str, p_data->att_value.value, p_data->att_value.len);
+                p_str[p_data->att_value.len] = 0;
+                p_clcb->dis_value.data_string[read_type - GATT_UUID_MODEL_NUMBER_STR] = p_str;
+                break;
+
+            default:
+                    break;
+
+                break;
+        }/* end switch */
+    }/* end if */
+
+    dis_cb.dis_read_uuid_idx ++;
+
+    dis_gatt_c_read_dis_req(conn_id);
+}
+
+/*******************************************************************************
+**
+** Function         DIS_SrInit
+**
+** Description      Initialize the Device Information Service Server.
+**
+*******************************************************************************/
+tDIS_STATUS DIS_SrInit (tDIS_ATTR_MASK dis_attr_mask)
+{
+    tBT_UUID          uuid = {LEN_UUID_16, {UUID_SERVCLASS_DEVICE_INFO}};
+    UINT16            i = 0;
+    tGATT_STATUS      status;
+    tDIS_DB_ENTRY        *p_db_attr = &dis_cb.dis_attr[0];
+
+    if (dis_cb.enabled)
+    {
+        GATT_TRACE_ERROR("DIS already initalized");
+        return DIS_SUCCESS;
+    }
+
+    memset(&dis_cb, 0, sizeof(tDIS_CB));
+
+    dis_cb.service_handle = GATTS_CreateService (srvc_eng_cb.gatt_if , &uuid, 0, DIS_MAX_ATTR_NUM, TRUE);
+
+    if (dis_cb.service_handle == 0)
+    {
+        GATT_TRACE_ERROR("Can not create service, DIS_Init failed!");
+        return GATT_ERROR;
+    }
+    dis_cb.max_handle = dis_cb.service_handle + DIS_MAX_ATTR_NUM;
+
+    while (dis_attr_mask != 0 && i < DIS_MAX_CHAR_NUM)
+    {
+        /* add Manufacturer name
+        */
+        uuid.uu.uuid16 = p_db_attr->uuid = dis_attr_uuid[i];
+        p_db_attr->handle  = GATTS_AddCharacteristic(dis_cb.service_handle, &uuid, GATT_PERM_READ, GATT_CHAR_PROP_BIT_READ);
+        GATT_TRACE_DEBUG ("DIS_SrInit:  handle of new attribute 0x%04 = x%d", uuid.uu.uuid16, p_db_attr->handle  );
+        p_db_attr ++;
+        i ++;
+        dis_attr_mask >>= 1;
+    }
+
+    /* start service
+    */
+    status = GATTS_StartService (srvc_eng_cb.gatt_if, dis_cb.service_handle, GATT_TRANSPORT_LE_BR_EDR);
+
+    dis_cb.enabled = TRUE;
+
+    return (tDIS_STATUS) status;
+}
+/*******************************************************************************
+**
+** Function         DIS_SrUpdate
+**
+** Description      Update the DIS server attribute values
+**
+*******************************************************************************/
+tDIS_STATUS DIS_SrUpdate(tDIS_ATTR_BIT dis_attr_bit, tDIS_ATTR *p_info)
+{
+    UINT8           i = 1;
+    tDIS_STATUS     st = DIS_SUCCESS;
+
+    if (dis_attr_bit & DIS_ATTR_SYS_ID_BIT)
+    {
+        dis_cb.dis_value.system_id = p_info->system_id;
+    }
+    else if (dis_attr_bit & DIS_ATTR_PNP_ID_BIT)
+    {
+        dis_cb.dis_value.pnp_id.vendor_id         = p_info->pnp_id.vendor_id;
+        dis_cb.dis_value.pnp_id.vendor_id_src     = p_info->pnp_id.vendor_id_src;
+        dis_cb.dis_value.pnp_id.product_id        = p_info->pnp_id.product_id;
+        dis_cb.dis_value.pnp_id.product_version   = p_info->pnp_id.product_version;
+    }
+    else
+    {
+        st = DIS_ILLEGAL_PARAM;
+
+        while (dis_attr_bit && i < (DIS_MAX_CHAR_NUM -1 ))
+        {
+            if (dis_attr_bit & (UINT16)(1 << i))
+            {
+                osi_free(dis_cb.dis_value.data_string[i - 1]);
+/* coverity[OVERRUN-STATIC] False-positive : when i = 8, (1 << i) == DIS_ATTR_PNP_ID_BIT, and it will never come down here
+CID 49902: Out-of-bounds read (OVERRUN_STATIC)
+Overrunning static array "dis_cb.dis_value.data_string", with 7 elements, at position 7 with index variable "i".
+*/
+                dis_cb.dis_value.data_string[i - 1] = (UINT8 *)osi_malloc(p_info->data_str.len + 1);
+                memcpy(dis_cb.dis_value.data_string[i - 1], p_info->data_str.p_data, p_info->data_str.len);
+                dis_cb.dis_value.data_string[i - 1][p_info->data_str.len] = 0; /* make sure null terminate */
+                st = DIS_SUCCESS;
+
+                break;
+            }
+            i ++;
+        }
+    }
+    return st;
+}
+/*******************************************************************************
+**
+** Function         DIS_ReadDISInfo
+**
+** Description      Read remote device DIS information.
+**
+** Returns          void
+**
+*******************************************************************************/
+BOOLEAN DIS_ReadDISInfo(BD_ADDR peer_bda, tDIS_READ_CBACK *p_cback, tDIS_ATTR_MASK mask)
+{
+    UINT16             conn_id;
+
+    /* Initialize the DIS client if it hasn't been initialized already. */
+    srvc_eng_init();
+
+    /* For now we only handle one at a time */
+    if (dis_cb.dis_read_uuid_idx != 0xff)
+        return(FALSE);
+
+    if (p_cback == NULL)
+        return(FALSE);
+
+    dis_cb.p_read_dis_cback = p_cback;
+    /* Mark currently active operation */
+    dis_cb.dis_read_uuid_idx = 0;
+
+    dis_cb.request_mask = mask;
+
+    GATT_TRACE_EVENT ("DIS_ReadDISInfo() - BDA: %08x%04x  cl_read_uuid: 0x%04x",
+                      (peer_bda[0]<<24)+(peer_bda[1]<<16)+(peer_bda[2]<<8)+peer_bda[3],
+                      (peer_bda[4]<<8)+peer_bda[5], dis_attr_uuid[dis_cb.dis_read_uuid_idx]);
+
+    GATT_GetConnIdIfConnected(srvc_eng_cb.gatt_if, peer_bda, &conn_id, BT_TRANSPORT_LE);
+
+    /* need to enhance it as multiple service is needed */
+    srvc_eng_request_channel(peer_bda, SRVC_ID_DIS);
+
+    if (conn_id == GATT_INVALID_CONN_ID)
+    {
+        return GATT_Connect(srvc_eng_cb.gatt_if, peer_bda, TRUE, BT_TRANSPORT_LE);
+    }
+
+    return dis_gatt_c_read_dis_req(conn_id);
+
+}
+#endif  /* BLE_INCLUDED */
+
diff --git a/rtkbt/code/bt/stack/srvc/srvc_dis_int.h b/rtkbt/code/bt/stack/srvc/srvc_dis_int.h
new file mode 100755
index 0000000..67a6468
--- /dev/null
+++ b/rtkbt/code/bt/stack/srvc/srvc_dis_int.h
@@ -0,0 +1,78 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#ifndef SRVC_DIS_INT_H
+#define SRVC_DIS_INT_H
+
+#include "bt_target.h"
+#include "gatt_api.h"
+#include "srvc_api.h"
+#include "srvc_eng_int.h"
+
+#define DIS_MAX_CHAR_NUM            9
+
+typedef struct
+{
+    UINT16      uuid;
+    UINT16      handle;
+}tDIS_DB_ENTRY;
+
+#define DIS_SYSTEM_ID_SIZE      8
+#define DIS_PNP_ID_SIZE         7
+
+typedef struct
+{
+    tDIS_DB_ENTRY           dis_attr[DIS_MAX_CHAR_NUM];
+    tDIS_VALUE              dis_value;
+
+    tDIS_READ_CBACK         *p_read_dis_cback;
+
+    UINT16                  service_handle;
+    UINT16                  max_handle;
+
+    BOOLEAN                 enabled;
+
+    UINT8                   dis_read_uuid_idx;
+
+    tDIS_ATTR_MASK          request_mask;
+}tDIS_CB;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Global GATT data */
+#if GATT_DYNAMIC_MEMORY == FALSE
+extern tDIS_CB dis_cb;
+#else
+extern tDIS_CB *dis_cb_ptr;
+#define dis_cb (*dis_cb_ptr)
+#endif
+
+extern BOOLEAN dis_valid_handle_range(UINT16 handle);
+extern UINT8 dis_read_attr_value (UINT8 clcb_idx, UINT16 handle, tGATT_VALUE *p_value,
+                           BOOLEAN is_long, tGATT_STATUS *p_status);
+extern UINT8 dis_write_attr_value(tGATT_WRITE_REQ * p_data, tGATT_STATUS *p_status);
+
+extern void dis_c_cmpl_cback (tSRVC_CLCB *p_clcb, tGATTC_OPTYPE op,
+                                    tGATT_STATUS status, tGATT_CL_COMPLETE *p_data);
+
+#ifdef __cplusplus
+}
+#endif
+#endif
diff --git a/rtkbt/code/bt/stack/srvc/srvc_eng.c b/rtkbt/code/bt/stack/srvc/srvc_eng.c
new file mode 100755
index 0000000..1b85981
--- /dev/null
+++ b/rtkbt/code/bt/stack/srvc/srvc_eng.c
@@ -0,0 +1,484 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2013 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#include "bt_target.h"
+#include "bt_utils.h"
+#include "gatt_api.h"
+#include "gatt_int.h"
+#include "srvc_eng_int.h"
+
+#if BLE_INCLUDED == TRUE
+
+//#if DIS_INCLUDED == TRUE
+#include "srvc_dis_int.h"
+//#endif
+#include "srvc_battery_int.h"
+
+#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
+
+static void srvc_eng_s_request_cback (UINT16 conn_id, UINT32 trans_id, UINT8 op_code, tGATTS_DATA *p_data);
+static void srvc_eng_connect_cback (tGATT_IF gatt_if, BD_ADDR bda, UINT16 conn_id, BOOLEAN connected,
+                                          tGATT_DISCONN_REASON reason, tBT_TRANSPORT transport);
+static void srvc_eng_c_cmpl_cback (UINT16 conn_id, tGATTC_OPTYPE op, tGATT_STATUS status, tGATT_CL_COMPLETE *p_data);
+
+static tGATT_CBACK srvc_gatt_cback =
+{
+    srvc_eng_connect_cback,
+    srvc_eng_c_cmpl_cback,
+    NULL,
+    NULL,
+    srvc_eng_s_request_cback,
+    NULL,
+    NULL
+} ;
+/* type for action functions */
+typedef void (*tSRVC_ENG_C_CMPL_ACTION)(tSRVC_CLCB *p_clcb, tGATTC_OPTYPE op,
+                                    tGATT_STATUS status, tGATT_CL_COMPLETE *p_data);
+
+const tSRVC_ENG_C_CMPL_ACTION srvc_eng_c_cmpl_act[SRVC_ID_MAX] =
+{
+    dis_c_cmpl_cback,
+};
+
+tSRVC_ENG_CB srvc_eng_cb;
+
+/*******************************************************************************
+**
+** Function         srvc_eng_find_conn_id_by_bd_addr
+**
+** Description      The function searches all LCB with macthing bd address
+**
+** Returns          total number of clcb found.
+**
+*******************************************************************************/
+UINT16 srvc_eng_find_conn_id_by_bd_addr(BD_ADDR bda)
+{
+    UINT8 i_clcb;
+    tSRVC_CLCB    *p_clcb = NULL;
+
+    for (i_clcb = 0, p_clcb= srvc_eng_cb.clcb; i_clcb < SRVC_MAX_APPS; i_clcb++, p_clcb++)
+    {
+        if (p_clcb->in_use && p_clcb->connected && !memcmp(p_clcb->bda, bda, BD_ADDR_LEN))
+        {
+            return p_clcb->conn_id;
+        }
+    }
+
+    return GATT_INVALID_CONN_ID;
+}
+
+/*******************************************************************************
+**
+** Function         srvc_eng_find_clcb_by_bd_addr
+**
+** Description      The function searches all LCBs with macthing bd address.
+**
+** Returns          Pointer to the found link conenction control block.
+**
+*******************************************************************************/
+tSRVC_CLCB *srvc_eng_find_clcb_by_bd_addr(BD_ADDR bda)
+{
+    UINT8 i_clcb;
+    tSRVC_CLCB    *p_clcb = NULL;
+
+    for (i_clcb = 0, p_clcb= srvc_eng_cb.clcb; i_clcb < SRVC_MAX_APPS; i_clcb++, p_clcb++)
+    {
+        if (p_clcb->in_use && p_clcb->connected && !memcmp(p_clcb->bda, bda, BD_ADDR_LEN))
+        {
+            return p_clcb;
+        }
+    }
+
+    return NULL;
+}
+/*******************************************************************************
+**
+** Function         srvc_eng_find_clcb_by_conn_id
+**
+** Description      The function searches all LCBs with macthing connection ID.
+**
+** Returns          Pointer to the found link conenction control block.
+**
+*******************************************************************************/
+tSRVC_CLCB *srvc_eng_find_clcb_by_conn_id(UINT16 conn_id)
+{
+    UINT8 i_clcb;
+    tSRVC_CLCB    *p_clcb = NULL;
+
+    for (i_clcb = 0, p_clcb= srvc_eng_cb.clcb; i_clcb < SRVC_MAX_APPS; i_clcb++, p_clcb++)
+    {
+        if (p_clcb->in_use && p_clcb->connected && p_clcb->conn_id == conn_id)
+        {
+            return p_clcb;
+        }
+    }
+
+    return NULL;
+}
+/*******************************************************************************
+**
+** Function         srvc_eng_find_clcb_by_conn_id
+**
+** Description      The function searches all LCBs with macthing connection ID.
+**
+** Returns          Pointer to the found link conenction control block.
+**
+*******************************************************************************/
+UINT8 srvc_eng_find_clcb_idx_by_conn_id(UINT16 conn_id)
+{
+    UINT8 i_clcb;
+    tSRVC_CLCB    *p_clcb = NULL;
+
+    for (i_clcb = 0, p_clcb= srvc_eng_cb.clcb; i_clcb < SRVC_MAX_APPS; i_clcb++, p_clcb++)
+    {
+        if (p_clcb->in_use && p_clcb->connected && p_clcb->conn_id == conn_id)
+        {
+            return i_clcb;
+        }
+    }
+
+    return SRVC_MAX_APPS;
+}
+/*******************************************************************************
+**
+** Function         srvc_eng_clcb_alloc
+**
+** Description      The function allocates a GATT profile  connection link control block
+**
+** Returns           NULL if not found. Otherwise pointer to the connection link block.
+**
+*******************************************************************************/
+tSRVC_CLCB *srvc_eng_clcb_alloc (UINT16 conn_id, BD_ADDR bda)
+{
+    UINT8                   i_clcb = 0;
+    tSRVC_CLCB      *p_clcb = NULL;
+
+    for (i_clcb = 0, p_clcb= srvc_eng_cb.clcb; i_clcb < SRVC_MAX_APPS; i_clcb++, p_clcb++)
+    {
+        if (!p_clcb->in_use)
+        {
+            p_clcb->in_use      = TRUE;
+            p_clcb->conn_id     = conn_id;
+            p_clcb->connected   = TRUE;
+            memcpy (p_clcb->bda, bda, BD_ADDR_LEN);
+            break;
+        }
+    }
+    return p_clcb;
+}
+/*******************************************************************************
+**
+** Function         srvc_eng_clcb_dealloc
+**
+** Description      The function deallocates a GATT profile  connection link control block
+**
+** Returns           True the deallocation is successful
+**
+*******************************************************************************/
+BOOLEAN srvc_eng_clcb_dealloc (UINT16 conn_id)
+{
+    UINT8                   i_clcb = 0;
+    tSRVC_CLCB      *p_clcb = NULL;
+
+    for (i_clcb = 0, p_clcb= srvc_eng_cb.clcb; i_clcb < SRVC_MAX_APPS; i_clcb++, p_clcb++)
+    {
+        if (p_clcb->in_use && p_clcb->connected && (p_clcb->conn_id == conn_id))
+        {
+            unsigned j;
+            for (j = 0; j < ARRAY_SIZE(p_clcb->dis_value.data_string); j++)
+                osi_free(p_clcb->dis_value.data_string[j]);
+
+            memset(p_clcb, 0, sizeof(tSRVC_CLCB));
+            return TRUE;
+        }
+    }
+    return FALSE;
+}
+/*******************************************************************************
+**   Service Engine Server Attributes Database Read/Read Blob Request process
+*******************************************************************************/
+UINT8 srvc_eng_process_read_req (UINT8 clcb_idx, tGATT_READ_REQ *p_data, tGATTS_RSP *p_rsp, tGATT_STATUS *p_status)
+{
+    tGATT_STATUS    status = GATT_NOT_FOUND;
+    UINT8       act = SRVC_ACT_RSP;
+
+    if (p_data->is_long)
+        p_rsp->attr_value.offset = p_data->offset;
+
+    p_rsp->attr_value.handle = p_data->handle;
+
+    if (dis_valid_handle_range(p_data->handle))
+        act = dis_read_attr_value(clcb_idx, p_data->handle, &p_rsp->attr_value, p_data->is_long, p_status);
+
+    else if (battery_valid_handle_range(p_data->handle))
+        act = battery_s_read_attr_value(clcb_idx, p_data->handle, &p_rsp->attr_value, p_data->is_long, p_status);
+
+    else
+        *p_status = status;
+    return act;
+}
+/*******************************************************************************
+**   Service Engine Server Attributes Database write Request process
+*******************************************************************************/
+UINT8 srvc_eng_process_write_req (UINT8 clcb_idx, tGATT_WRITE_REQ *p_data, tGATTS_RSP *p_rsp, tGATT_STATUS *p_status)
+{
+    UINT8       act = SRVC_ACT_RSP;
+    UNUSED(p_rsp);
+
+    if (dis_valid_handle_range(p_data->handle))
+    {
+        act = dis_write_attr_value(p_data, p_status);
+    }
+    else if (battery_valid_handle_range(p_data->handle))
+    {
+        act = battery_s_write_attr_value(clcb_idx, p_data, p_status);
+    }
+    else
+        *p_status = GATT_NOT_FOUND;
+
+    return act;
+}
+
+/*******************************************************************************
+**
+** Function         srvc_eng_s_request_cback
+**
+** Description      GATT DIS attribute access request callback.
+**
+** Returns          void.
+**
+*******************************************************************************/
+static void srvc_eng_s_request_cback (UINT16 conn_id, UINT32 trans_id, tGATTS_REQ_TYPE type,
+                                        tGATTS_DATA *p_data)
+{
+    UINT8       status = GATT_INVALID_PDU;
+    tGATTS_RSP  rsp_msg ;
+    UINT8       act = SRVC_ACT_IGNORE;
+    UINT8   clcb_idx = srvc_eng_find_clcb_idx_by_conn_id(conn_id);
+
+    GATT_TRACE_EVENT("srvc_eng_s_request_cback : recv type (0x%02x)", type);
+
+    memset(&rsp_msg, 0, sizeof(tGATTS_RSP));
+
+    srvc_eng_cb.clcb[clcb_idx].trans_id = trans_id;
+
+    switch (type)
+    {
+        case GATTS_REQ_TYPE_READ:
+            act = srvc_eng_process_read_req(clcb_idx, &p_data->read_req, &rsp_msg, &status);
+            break;
+
+        case GATTS_REQ_TYPE_WRITE:
+            act = srvc_eng_process_write_req(clcb_idx, &p_data->write_req, &rsp_msg, &status);
+            if (!p_data->write_req.need_rsp)
+                act = SRVC_ACT_IGNORE;
+            break;
+
+        case GATTS_REQ_TYPE_WRITE_EXEC:
+            GATT_TRACE_EVENT("Ignore GATT_REQ_EXEC_WRITE/WRITE_CMD" );
+            break;
+
+        case GATTS_REQ_TYPE_MTU:
+            GATT_TRACE_EVENT("Get MTU exchange new mtu size: %d", p_data->mtu);
+            break;
+
+        default:
+            GATT_TRACE_EVENT("Unknown/unexpected LE GAP ATT request: 0x%02x", type);
+            break;
+    }
+
+    srvc_eng_cb.clcb[clcb_idx].trans_id = 0;
+
+    if (act == SRVC_ACT_RSP)
+        GATTS_SendRsp (conn_id, trans_id, status, &rsp_msg);
+
+
+}
+
+
+/*******************************************************************************
+**
+** Function         srvc_eng_c_cmpl_cback
+**
+** Description      Client operation complete callback.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void srvc_eng_c_cmpl_cback (UINT16 conn_id, tGATTC_OPTYPE op, tGATT_STATUS status,
+                                   tGATT_CL_COMPLETE *p_data)
+{
+    tSRVC_CLCB   *p_clcb = srvc_eng_find_clcb_by_conn_id(conn_id);
+
+    GATT_TRACE_EVENT ("srvc_eng_c_cmpl_cback() - op_code: 0x%02x  status: 0x%02x ", op, status);
+
+    if (p_clcb == NULL)
+    {
+        GATT_TRACE_ERROR("srvc_eng_c_cmpl_cback received for unknown connection");
+        return;
+    }
+
+    if (p_clcb->cur_srvc_id != SRVC_ID_NONE &&
+        p_clcb->cur_srvc_id <= SRVC_ID_MAX)
+        srvc_eng_c_cmpl_act[p_clcb->cur_srvc_id - 1](p_clcb, op, status, p_data);
+}
+
+
+/*******************************************************************************
+**
+** Function         srvc_eng_connect_cback
+**
+** Description      Gatt profile connection callback.
+**
+** Returns          void
+**
+*******************************************************************************/
+static void srvc_eng_connect_cback (tGATT_IF gatt_if, BD_ADDR bda, UINT16 conn_id,
+                                        BOOLEAN connected, tGATT_DISCONN_REASON reason,  tBT_TRANSPORT transport)
+{
+    UNUSED(gatt_if);
+    UNUSED (transport);
+
+    GATT_TRACE_EVENT ("srvc_eng_connect_cback: from %08x%04x connected:%d conn_id=%d reason = 0x%04x",
+                       (bda[0]<<24)+(bda[1]<<16)+(bda[2]<<8)+bda[3],
+                       (bda[4]<<8)+bda[5], connected, conn_id, reason);
+
+    if (connected)
+    {
+        if (srvc_eng_clcb_alloc(conn_id, bda) == NULL)
+        {
+            GATT_TRACE_ERROR ("srvc_eng_connect_cback: no_resource");
+            return;
+        }
+    }
+    else
+    {
+        srvc_eng_clcb_dealloc(conn_id);
+    }
+
+}
+/*******************************************************************************
+**
+** Function         srvc_eng_c_cmpl_cback
+**
+** Description      Client operation complete callback.
+**
+** Returns          void
+**
+*******************************************************************************/
+BOOLEAN srvc_eng_request_channel (BD_ADDR remote_bda, UINT8 srvc_id )
+{
+    BOOLEAN set = TRUE;
+    tSRVC_CLCB  *p_clcb = srvc_eng_find_clcb_by_bd_addr(remote_bda);
+
+    if (p_clcb == NULL)
+        p_clcb = srvc_eng_clcb_alloc(0, remote_bda);
+
+    if (p_clcb && p_clcb->cur_srvc_id == SRVC_ID_NONE)
+        p_clcb->cur_srvc_id = srvc_id;
+    else
+        set = FALSE;
+
+    return set;
+}
+/*******************************************************************************
+**
+** Function         srvc_eng_release_channel
+**
+** Description      Client operation complete callback.
+**
+** Returns          void
+**
+*******************************************************************************/
+void srvc_eng_release_channel (UINT16 conn_id)
+{
+    tSRVC_CLCB *p_clcb =  srvc_eng_find_clcb_by_conn_id(conn_id);
+
+    if (p_clcb == NULL)
+    {
+        GATT_TRACE_ERROR("%s: invalid connection id %d", __FUNCTION__, conn_id);
+        return;
+    }
+
+    p_clcb->cur_srvc_id = SRVC_ID_NONE;
+
+    /* check pending request */
+    GATT_Disconnect(p_clcb->conn_id);
+}
+/*******************************************************************************
+**
+** Function         srvc_eng_init
+**
+** Description      Initializa the GATT Service engine.
+**
+*******************************************************************************/
+tGATT_STATUS srvc_eng_init (void)
+{
+    tBT_UUID          app_uuid = {LEN_UUID_16, {UUID_SERVCLASS_DEVICE_INFO}};
+
+    if (srvc_eng_cb.enabled)
+    {
+        GATT_TRACE_ERROR("DIS already initalized");
+    }
+    else
+    {
+#ifdef BLUETOOTH_RTK
+        memset(&srvc_eng_cb, 0, sizeof(tSRVC_ENG_CB));
+#else
+        memset(&srvc_eng_cb, 0, sizeof(tDIS_CB));
+#endif
+        /* Create a GATT profile service */
+        srvc_eng_cb.gatt_if = GATT_Register(&app_uuid, &srvc_gatt_cback);
+        GATT_StartIf(srvc_eng_cb.gatt_if);
+
+        GATT_TRACE_DEBUG ("Srvc_Init:  gatt_if=%d  ", srvc_eng_cb.gatt_if);
+
+        srvc_eng_cb.enabled = TRUE;
+//#if DIS_INCLUDED == TRUE
+        dis_cb.dis_read_uuid_idx = 0xff;
+//#endif
+    }
+    return GATT_SUCCESS;
+}
+
+void srvc_sr_rsp(UINT8 clcb_idx, tGATT_STATUS st, tGATTS_RSP *p_rsp)
+{
+    if (srvc_eng_cb.clcb[clcb_idx].trans_id != 0)
+    {
+        GATTS_SendRsp(srvc_eng_cb.clcb[clcb_idx].conn_id,
+                  srvc_eng_cb.clcb[clcb_idx].trans_id,
+                  st,
+                  p_rsp);
+
+        srvc_eng_cb.clcb[clcb_idx].trans_id = 0;
+    }
+}
+void srvc_sr_notify(BD_ADDR remote_bda, UINT16 handle, UINT16 len, UINT8 *p_value)
+{
+    UINT16 conn_id = srvc_eng_find_conn_id_by_bd_addr(remote_bda);
+
+    if (conn_id != GATT_INVALID_CONN_ID)
+    {
+        GATTS_HandleValueNotification( conn_id, handle, len, p_value);
+    }
+}
+
+#endif
+
+
+
diff --git a/rtkbt/code/bt/stack/srvc/srvc_eng_int.h b/rtkbt/code/bt/stack/srvc/srvc_eng_int.h
new file mode 100755
index 0000000..edd9763
--- /dev/null
+++ b/rtkbt/code/bt/stack/srvc/srvc_eng_int.h
@@ -0,0 +1,88 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 1999-2013 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#ifndef SRVC_ENG_INT_H
+#define SRVC_ENG_INT_H
+
+#include "bt_target.h"
+#include "gatt_api.h"
+#include "srvc_api.h"
+
+#define SRVC_MAX_APPS                  GATT_CL_MAX_LCB
+
+#define SRVC_ID_NONE            0
+#define SRVC_ID_DIS             1
+#define SRVC_ID_MAX             SRVC_ID_DIS
+
+#define SRVC_ACT_IGNORE     0
+#define SRVC_ACT_RSP        1
+#define SRVC_ACT_PENDING    2
+
+typedef struct
+{
+    BOOLEAN         in_use;
+    UINT16          conn_id;
+    BOOLEAN         connected;
+    BD_ADDR         bda;
+    UINT32          trans_id;
+    UINT8           cur_srvc_id;
+
+    tDIS_VALUE      dis_value;
+
+}tSRVC_CLCB;
+
+
+/* service engine control block */
+typedef struct
+{
+    tSRVC_CLCB              clcb[SRVC_MAX_APPS]; /* connection link*/
+    tGATT_IF                gatt_if;
+    BOOLEAN                 enabled;
+
+}tSRVC_ENG_CB;
+
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Global GATT data */
+#if GATT_DYNAMIC_MEMORY == FALSE
+extern tSRVC_ENG_CB srvc_eng_cb;
+#else
+extern tSRVC_ENG_CB srvc_eng_cb_ptr;
+#define srvc_eng_cb (*srvc_eng_cb_ptr)
+
+#endif
+
+extern tSRVC_CLCB *srvc_eng_find_clcb_by_conn_id(UINT16 conn_id);
+extern tSRVC_CLCB *srvc_eng_find_clcb_by_bd_addr(BD_ADDR bda);
+extern UINT16 srvc_eng_find_conn_id_by_bd_addr(BD_ADDR bda);
+
+
+extern void srvc_eng_release_channel (UINT16 conn_id) ;
+extern BOOLEAN srvc_eng_request_channel (BD_ADDR remote_bda, UINT8 srvc_id );
+extern void srvc_sr_rsp(UINT8 clcb_idx, tGATT_STATUS st, tGATTS_RSP *p_rsp);
+extern void srvc_sr_notify(BD_ADDR remote_bda, UINT16 handle, UINT16 len, UINT8 *p_value);
+
+
+#ifdef __cplusplus
+}
+#endif
+#endif
diff --git a/rtkbt/code/bt/test/Android.mk b/rtkbt/code/bt/test/Android.mk
new file mode 100755
index 0000000..5053e7d
--- /dev/null
+++ b/rtkbt/code/bt/test/Android.mk
@@ -0,0 +1 @@
+include $(call all-subdir-makefiles)
diff --git a/rtkbt/code/bt/test/run_unit_tests.sh b/rtkbt/code/bt/test/run_unit_tests.sh
new file mode 100755
index 0000000..9a4420b
--- /dev/null
+++ b/rtkbt/code/bt/test/run_unit_tests.sh
@@ -0,0 +1,120 @@
+#!/bin/sh
+
+known_tests=(
+  bluetoothtbd_test
+  net_test_bluetooth
+  net_test_btcore
+  net_test_device
+  net_test_hci
+  net_test_osi
+  net_test_btif
+)
+
+usage() {
+  binary="$(basename "$0")"
+  echo "Usage: ${binary} --help"
+  echo "       ${binary} [-i <iterations>] [-s <specific device>] [--all] [<test name>[.<filter>] ...] [--<arg> ...]"
+  echo
+  echo "Unknown long arguments are passed to the test."
+  echo
+  echo "Known test names:"
+
+  for name in "${known_tests[@]}"
+  do
+    echo "    ${name}"
+  done
+}
+
+iterations=1
+device=
+tests=()
+test_args=()
+while [ $# -gt 0 ]
+do
+  case "$1" in
+    -h|--help)
+      usage
+      exit 0
+      ;;
+    -i)
+      shift
+      if [ $# -eq 0 ]; then
+        echo "error: number of iterations expected" 1>&2
+        usage
+        exit 2
+      fi
+      iterations=$(( $1 ))
+      shift
+      ;;
+    -s)
+      shift
+      if [ $# -eq 0 ]; then
+        echo "error: no device specified" 1>&2
+        usage
+        exit 2
+      fi
+      device="$1"
+      shift
+      ;;
+    --all)
+      tests+=( "${known_tests[@]}" )
+      shift
+      ;;
+    --*)
+      test_args+=( "$1" )
+      shift
+      ;;
+    *)
+      tests+=( "$1" )
+      shift
+      ;;
+  esac
+done
+
+if [ "${#tests[@]}" -eq 0 ]; then
+  tests+=( "${known_tests[@]}" )
+fi
+
+adb=( "adb" )
+if [ -n "${device}" ]; then
+  adb+=( "-s" "${device}" )
+fi
+
+failed_tests=()
+for spec in "${tests[@]}"
+do
+  name="${spec%%.*}"
+  binary="/data/nativetest/${name}/${name}"
+
+  push_command=( "${adb[@]}" push {"${ANDROID_PRODUCT_OUT}",}"${binary}" )
+  test_command=( "${adb[@]}" shell "${binary}" )
+  if [ "${name}" != "${spec}" ]; then
+    filter="${spec#*.}"
+    test_command+=( "--gtest_filter=${filter}" )
+  fi
+  test_command+=( "${test_args[@]}" )
+
+  echo "--- ${name} ---"
+  echo "pushing..."
+  "${push_command[@]}"
+  echo "running..."
+  failed_count=0
+  for i in $(seq 1 ${iterations})
+  do
+    "${test_command[@]}" || failed_count=$(( $failed_count + 1 ))
+  done
+
+  if [ $failed_count != 0 ]; then
+    failed_tests+=( "${name} ${failed_count}/${iterations}" )
+  fi
+done
+
+if [ "${#failed_tests[@]}" -ne 0 ]; then
+  for failed_test in "${failed_tests[@]}"
+  do
+    echo "!!! FAILED TEST: ${failed_test} !!!"
+  done
+  exit 1
+fi
+
+exit 0
diff --git a/rtkbt/code/bt/test/suite/Android.mk.disabled b/rtkbt/code/bt/test/suite/Android.mk.disabled
new file mode 100755
index 0000000..aa9d98b
--- /dev/null
+++ b/rtkbt/code/bt/test/suite/Android.mk.disabled
@@ -0,0 +1,59 @@
+#
+#  Copyright (C) 2015 Google, Inc.
+#
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at:
+#
+#  http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+#
+
+LOCAL_PATH := $(call my-dir)
+
+# Bluetooth test suite for target
+# ========================================================
+include $(CLEAR_VARS)
+
+LOCAL_MODULE_TAGS := optional
+LOCAL_MODULE := net_test_bluetooth
+
+# These tests use the bluetoothtbd HAL wrappers in order to easily interact
+# with the interface using C++
+# TODO: Make the bluetoothtbd HAL a static library
+bluetoothHalSrc := \
+  ../../service/hal/bluetooth_gatt_interface.cpp \
+  ../../service/hal/bluetooth_interface.cpp \
+  ../../service/logging_helpers.cpp
+
+LOCAL_C_INCLUDES += \
+    $(LOCAL_PATH)/../../
+
+LOCAL_SRC_FILES := \
+    adapter/adapter_unittest.cpp \
+    adapter/bluetooth_test.cpp \
+    gatt/gatt_test.cpp \
+    gatt/gatt_unittest.cpp \
+    $(bluetoothHalSrc)
+
+LOCAL_SHARED_LIBRARIES += \
+    liblog \
+    libhardware \
+    libhardware_legacy \
+    libcutils \
+    libchrome
+
+LOCAL_STATIC_LIBRARIES += \
+  libbtcore \
+  libosi
+
+LOCAL_CFLAGS += $(bluetooth_CFLAGS)
+LOCAL_CONLYFLAGS += $(bluetooth_CONLYFLAGS)
+LOCAL_CPPFLAGS += $(bluetooth_CPPFLAGS)
+
+include $(BUILD_NATIVE_TEST)
diff --git a/rtkbt/code/bt/test/suite/BUILD.gn b/rtkbt/code/bt/test/suite/BUILD.gn
new file mode 100755
index 0000000..7218852
--- /dev/null
+++ b/rtkbt/code/bt/test/suite/BUILD.gn
@@ -0,0 +1,44 @@
+#
+#  Copyright (C) 2015 Google, Inc.
+#
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at:
+#
+#  http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+#
+
+executable("net_test_bluetooth") {
+  testonly = true
+  sources = [
+    "adapter/adapter_unittest.cpp",
+    "adapter/bluetooth_test.cpp",
+  ]
+
+  include_dirs = [
+    "//",
+    "//test/suite",
+  ]
+
+  deps = [
+    "//btcore",
+    "//main:bluetooth.default",
+    "//service:service",
+    "//service:service_unittests",
+    "//third_party/libchrome:base",
+    "//osi",
+    "//third_party/googletest:gtest_main",
+  ]
+
+  libs = [
+    "-lpthread",
+    "-lrt",
+    "-ldl",
+  ]
+}
diff --git a/rtkbt/code/bt/test/suite/adapter/adapter_unittest.cpp b/rtkbt/code/bt/test/suite/adapter/adapter_unittest.cpp
new file mode 100755
index 0000000..1f78b21
--- /dev/null
+++ b/rtkbt/code/bt/test/suite/adapter/adapter_unittest.cpp
@@ -0,0 +1,174 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2015 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#include "adapter/bluetooth_test.h"
+
+extern "C" {
+#include "btcore/include/property.h"
+#include "stack/include/bt_types.h"
+}
+
+namespace {
+
+// Each iteration of the test takes about 2 seconds to run, so choose a value
+// that matches your time constraints. For example, 5 iterations would take
+// about 10 seconds to run
+const int kTestRepeatCount = 5;
+
+}  // namespace
+
+namespace bttest {
+
+TEST_F(BluetoothTest, AdapterEnableDisable) {
+  EXPECT_EQ(GetState(), BT_STATE_OFF) <<
+    "Test should be run with Adapter disabled";
+
+  EXPECT_EQ(bt_interface()->enable(false), BT_STATUS_SUCCESS);
+  semaphore_wait(adapter_state_changed_callback_sem_);
+  EXPECT_EQ(GetState(), BT_STATE_ON) <<  "Adapter did not turn on.";
+
+  EXPECT_EQ(bt_interface()->disable(), BT_STATUS_SUCCESS);
+  semaphore_wait(adapter_state_changed_callback_sem_);
+  EXPECT_EQ(GetState(), BT_STATE_OFF) << "Adapter did not turn off.";
+}
+
+TEST_F(BluetoothTest, AdapterRepeatedEnableDisable) {
+  EXPECT_EQ(GetState(), BT_STATE_OFF)
+    << "Test should be run with Adapter disabled";
+
+  for (int i = 0; i < kTestRepeatCount; ++i) {
+    EXPECT_EQ(bt_interface()->enable(false), BT_STATUS_SUCCESS);
+    semaphore_wait(adapter_state_changed_callback_sem_);
+    EXPECT_EQ(GetState(), BT_STATE_ON) <<  "Adapter did not turn on.";
+
+    EXPECT_EQ(bt_interface()->disable(), BT_STATUS_SUCCESS);
+    semaphore_wait(adapter_state_changed_callback_sem_);
+    EXPECT_EQ(GetState(), BT_STATE_OFF) << "Adapter did not turn off.";
+  }
+}
+
+TEST_F(BluetoothTest, AdapterSetGetName) {
+  bt_property_t *new_name = property_new_name("BluetoothTestName1");
+
+  EXPECT_EQ(bt_interface()->enable(false), BT_STATUS_SUCCESS);
+  semaphore_wait(adapter_state_changed_callback_sem_);
+  EXPECT_EQ(GetState(), BT_STATE_ON)
+    << "Test should be run with Adapter enabled";
+
+  // Enabling the interface will call the properties callback twice before
+  // ever reaching this point.
+  ClearSemaphore(adapter_properties_callback_sem_);
+
+  EXPECT_EQ(bt_interface()->get_adapter_property(BT_PROPERTY_BDNAME),
+      BT_STATUS_SUCCESS);
+  semaphore_wait(adapter_properties_callback_sem_);
+  EXPECT_GT(GetPropertiesChangedCount(), 0)
+    << "Expected at least one adapter property to change";
+  bt_property_t *name_property = GetProperty(BT_PROPERTY_BDNAME);
+  EXPECT_NE(name_property, nullptr);
+  if (property_equals(name_property, new_name)) {
+    property_free(new_name);
+    new_name = property_new_name("BluetoothTestName2");
+  }
+  std::string old_name((const char *)property_as_name(name_property)->name);
+
+  EXPECT_EQ(bt_interface()->set_adapter_property(new_name), BT_STATUS_SUCCESS);
+  semaphore_wait(adapter_properties_callback_sem_);
+  EXPECT_GT(GetPropertiesChangedCount(), 0)
+    << "Expected at least one adapter property to change";
+  EXPECT_TRUE(GetProperty(BT_PROPERTY_BDNAME))
+    << "The Bluetooth name property did not change.";
+  EXPECT_TRUE(property_equals(GetProperty(BT_PROPERTY_BDNAME), new_name))
+    << "Bluetooth name "
+    << property_as_name(GetProperty(BT_PROPERTY_BDNAME))->name
+    << " does not match test value " << property_as_name(new_name)->name;
+
+
+  bt_property_t *old_name_property = property_new_name(old_name.c_str());
+  EXPECT_EQ(bt_interface()->set_adapter_property(old_name_property), BT_STATUS_SUCCESS);
+  semaphore_wait(adapter_properties_callback_sem_);
+  EXPECT_TRUE(property_equals(GetProperty(BT_PROPERTY_BDNAME), old_name_property))
+    << "Bluetooth name "
+    << property_as_name(GetProperty(BT_PROPERTY_BDNAME))->name
+    << " does not match original name" << old_name;
+
+  EXPECT_EQ(bt_interface()->disable(), BT_STATUS_SUCCESS);
+  semaphore_wait(adapter_state_changed_callback_sem_);
+  EXPECT_EQ(GetState(), BT_STATE_OFF) << "Adapter did not turn off.";
+  property_free(new_name);
+  property_free(old_name_property);
+}
+
+TEST_F(BluetoothTest, AdapterStartDiscovery) {
+  EXPECT_EQ(bt_interface()->enable(false), BT_STATUS_SUCCESS);
+  semaphore_wait(adapter_state_changed_callback_sem_);
+  EXPECT_EQ(GetState(), BT_STATE_ON)
+    << "Test should be run with Adapter enabled";
+
+  EXPECT_EQ(bt_interface()->start_discovery(), BT_STATUS_SUCCESS);
+  semaphore_wait(discovery_state_changed_callback_sem_);
+  EXPECT_EQ(GetDiscoveryState(), BT_DISCOVERY_STARTED)
+    << "Unable to start discovery.";
+
+  EXPECT_EQ(bt_interface()->disable(), BT_STATUS_SUCCESS);
+  semaphore_wait(adapter_state_changed_callback_sem_);
+  EXPECT_EQ(GetState(), BT_STATE_OFF) << "Adapter did not turn off.";
+}
+
+TEST_F(BluetoothTest, AdapterCancelDiscovery) {
+  EXPECT_EQ(bt_interface()->enable(false), BT_STATUS_SUCCESS);
+  semaphore_wait(adapter_state_changed_callback_sem_);
+  EXPECT_EQ(GetState(), BT_STATE_ON)
+    << "Test should be run with Adapter enabled";
+
+  EXPECT_EQ(bt_interface()->start_discovery(), BT_STATUS_SUCCESS);
+  semaphore_wait(discovery_state_changed_callback_sem_);
+  EXPECT_EQ(bt_interface()->cancel_discovery(), BT_STATUS_SUCCESS);
+  semaphore_wait(discovery_state_changed_callback_sem_);
+
+  EXPECT_EQ(GetDiscoveryState(), BT_DISCOVERY_STOPPED)
+    << "Unable to stop discovery.";
+
+  EXPECT_EQ(bt_interface()->disable(), BT_STATUS_SUCCESS);
+  semaphore_wait(adapter_state_changed_callback_sem_);
+  EXPECT_EQ(GetState(), BT_STATE_OFF) << "Adapter did not turn off.";
+}
+
+TEST_F(BluetoothTest, AdapterDisableDuringBonding) {
+  EXPECT_EQ(GetState(), BT_STATE_OFF)
+    << "Test should be run with Adapter disabled";
+
+  bt_bdaddr_t bdaddr = { { 0x22, 0x22, 0x22, 0x22, 0x22, 0x22 } };
+
+  for (int i = 0; i < kTestRepeatCount; ++i) {
+    EXPECT_EQ(bt_interface()->enable(false), BT_STATUS_SUCCESS);
+    semaphore_wait(adapter_state_changed_callback_sem_);
+    EXPECT_EQ(GetState(), BT_STATE_ON) <<  "Adapter did not turn on.";
+
+    EXPECT_EQ(bt_interface()->create_bond(&bdaddr, BT_TRANSPORT_BR_EDR),
+              BT_STATUS_SUCCESS);
+
+    EXPECT_EQ(bt_interface()->cancel_bond(&bdaddr), BT_STATUS_SUCCESS);
+
+    EXPECT_EQ(bt_interface()->disable(), BT_STATUS_SUCCESS);
+    semaphore_wait(adapter_state_changed_callback_sem_);
+    EXPECT_EQ(GetState(), BT_STATE_OFF) << "Adapter did not turn off.";
+  }
+}
+
+}  // bttest
diff --git a/rtkbt/code/bt/test/suite/adapter/bluetooth_test.cpp b/rtkbt/code/bt/test/suite/adapter/bluetooth_test.cpp
new file mode 100755
index 0000000..91229db
--- /dev/null
+++ b/rtkbt/code/bt/test/suite/adapter/bluetooth_test.cpp
@@ -0,0 +1,130 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2015 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#include "adapter/bluetooth_test.h"
+
+#include <mutex>
+
+extern "C" {
+#include "btcore/include/property.h"
+}
+
+namespace {
+
+// Mutex lock used by callbacks to protect |callback_semaphores_| from
+// racey behaviour caused when Wait and Notify are called at the same time
+std::mutex callback_lock;
+
+}  // namespace
+
+namespace bttest {
+
+void BluetoothTest::SetUp() {
+  bt_interface_ = nullptr;
+  state_ = BT_STATE_OFF;
+  properties_changed_count_ = 0;
+  last_changed_properties_ = nullptr;
+  discovery_state_ = BT_DISCOVERY_STOPPED;
+  acl_state_ = BT_ACL_STATE_DISCONNECTED;
+  bond_state_ = BT_BOND_STATE_NONE;
+
+  adapter_properties_callback_sem_ = semaphore_new(0);
+  adapter_state_changed_callback_sem_ = semaphore_new(0);
+  discovery_state_changed_callback_sem_ = semaphore_new(0);
+
+  bluetooth::hal::BluetoothInterface::Initialize();
+  ASSERT_TRUE(bluetooth::hal::BluetoothInterface::IsInitialized());
+  auto bt_hal_interface = bluetooth::hal::BluetoothInterface::Get();
+  bt_hal_interface->AddObserver(this);
+  bt_interface_ = bt_hal_interface->GetHALInterface();
+  ASSERT_NE(nullptr, bt_interface_) << "bt_interface is null.";
+}
+
+void BluetoothTest::TearDown() {
+  semaphore_free(adapter_properties_callback_sem_);
+  semaphore_free(adapter_state_changed_callback_sem_);
+  semaphore_free(discovery_state_changed_callback_sem_);
+
+  auto bt_hal_interface = bluetooth::hal::BluetoothInterface::Get();
+  bt_hal_interface->RemoveObserver(this);
+  bt_hal_interface->CleanUp();
+  ASSERT_FALSE(bt_hal_interface->IsInitialized());
+}
+
+void BluetoothTest::ClearSemaphore(semaphore_t* sem) {
+  while (semaphore_try_wait(sem));
+}
+
+const bt_interface_t* BluetoothTest::bt_interface() {
+  return bt_interface_;
+}
+
+bt_state_t BluetoothTest::GetState() {
+  return state_;
+}
+
+int BluetoothTest::GetPropertiesChangedCount() {
+  return properties_changed_count_;
+}
+
+bt_property_t* BluetoothTest::GetProperty(bt_property_type_t type) {
+  for (int i = 0; i < properties_changed_count_; ++i) {
+    if (last_changed_properties_[i].type == type) {
+      return &last_changed_properties_[i];
+    }
+  }
+  return nullptr;
+}
+
+bt_discovery_state_t BluetoothTest::GetDiscoveryState() {
+  return discovery_state_;
+}
+
+bt_acl_state_t BluetoothTest::GetAclState() {
+  return acl_state_;
+}
+
+// Returns the device bond state.
+bt_bond_state_t BluetoothTest::GetBondState() {
+  return bond_state_;
+}
+
+// callback
+void BluetoothTest::AdapterStateChangedCallback(bt_state_t new_state) {
+  state_ = new_state;
+  semaphore_post(adapter_state_changed_callback_sem_);
+}
+
+// callback
+void BluetoothTest::AdapterPropertiesCallback(
+    bt_status_t status,
+    int num_properties,
+    bt_property_t* new_properties) {
+  property_free_array(last_changed_properties_, properties_changed_count_);
+  last_changed_properties_ = property_copy_array(new_properties, num_properties);
+  properties_changed_count_ = num_properties;
+  semaphore_post(adapter_properties_callback_sem_);
+}
+
+// callback
+void BluetoothTest::DiscoveryStateChangedCallback(bt_discovery_state_t state) {
+  discovery_state_ = state;
+  semaphore_post(discovery_state_changed_callback_sem_);
+}
+
+} // bttest
diff --git a/rtkbt/code/bt/test/suite/adapter/bluetooth_test.h b/rtkbt/code/bt/test/suite/adapter/bluetooth_test.h
new file mode 100755
index 0000000..4871d25
--- /dev/null
+++ b/rtkbt/code/bt/test/suite/adapter/bluetooth_test.h
@@ -0,0 +1,113 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2015 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#pragma once
+
+#include "service/hal/bluetooth_interface.h"
+
+#include <gtest/gtest.h>
+#include <map>
+#include <string>
+
+extern "C" {
+#include <hardware/bluetooth.h>
+#include <hardware/bt_gatt.h>
+#include <hardware/bt_pan.h>
+#include <hardware/bt_sock.h>
+#include <hardware/hardware.h>
+#include <signal.h>
+#include <time.h>
+
+#include "osi/include/semaphore.h"
+}
+
+namespace bttest {
+
+// This class represents the Bluetooth testing framework and provides
+// helpers and callbacks for GUnit to use for testing.
+class BluetoothTest : public ::testing::Test,
+                      public bluetooth::hal::BluetoothInterface::Observer {
+ protected:
+  BluetoothTest() = default;
+  virtual ~BluetoothTest() = default;
+
+  // Getter for the bt_interface
+  const bt_interface_t* bt_interface();
+
+  // Gets the current state of the Bluetooth Interface
+  bt_state_t GetState();
+
+  // Get the number of properties that have changed on the
+  // Adapter Properties callback
+  int GetPropertiesChangedCount();
+
+  // Get the value of a specific property
+  bt_property_t* GetProperty(bt_property_type_t type);
+
+  // Get the current discovery state
+  bt_discovery_state_t GetDiscoveryState();
+
+  // Get the current Acl State
+  bt_acl_state_t GetAclState();
+
+  // Get the current Bond State
+  bt_bond_state_t GetBondState();
+
+  // Reset a semaphores count to 0
+  void ClearSemaphore(semaphore_t* sem);
+
+  // SetUp initializes the Bluetooth interface and registers the callbacks
+  // before running every test
+  void SetUp() override;
+
+  // TearDown cleans up the stack and interface at the end of every test
+  void TearDown() override;
+
+  // A callback that is called when a property changes
+  void AdapterPropertiesCallback(
+      bt_status_t status,
+      int num_properties,
+      bt_property_t *properties);
+
+  // A callback that is called when the adapter state changes
+  void AdapterStateChangedCallback(bt_state_t state);
+
+  // A callback that is called when the Discovery state changes
+  void DiscoveryStateChangedCallback(bt_discovery_state_t state);
+
+  // Semaphores used to wait for specific callback execution. Each callback
+  // has its own semaphore associated with it.
+  semaphore_t* adapter_properties_callback_sem_;
+  semaphore_t* adapter_state_changed_callback_sem_;
+  semaphore_t* discovery_state_changed_callback_sem_;
+
+ private:
+  // The bluetooth interface that all the tests use to interact with the HAL
+  const bt_interface_t* bt_interface_;
+
+  bt_state_t state_;
+  int properties_changed_count_;
+  bt_property_t *last_changed_properties_;
+  bt_discovery_state_t discovery_state_;
+  bt_acl_state_t acl_state_;
+  bt_bond_state_t bond_state_;
+
+  DISALLOW_COPY_AND_ASSIGN(BluetoothTest);
+};
+
+}  // bttest
diff --git a/rtkbt/code/bt/test/suite/gatt/gatt_test.cpp b/rtkbt/code/bt/test/suite/gatt/gatt_test.cpp
new file mode 100755
index 0000000..a7912bb
--- /dev/null
+++ b/rtkbt/code/bt/test/suite/gatt/gatt_test.cpp
@@ -0,0 +1,190 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2015 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#include "adapter/bluetooth_test.h"
+#include "gatt/gatt_test.h"
+
+extern "C" {
+#include "btcore/include/bdaddr.h"
+}
+
+namespace bttest {
+
+void GattTest::SetUp() {
+  gatt_client_interface_ = nullptr;
+  gatt_server_interface_ = nullptr;
+
+  client_interface_id_ = 0;
+  server_interface_id_ = 0;
+  service_handle_ = 0;
+  characteristic_handle_ = 0;
+  descriptor_handle_ = 0;
+  status_ = 0;
+
+  BluetoothTest::SetUp();
+  ASSERT_EQ(bt_interface()->enable(false), BT_STATUS_SUCCESS);
+  semaphore_wait(adapter_state_changed_callback_sem_);
+  EXPECT_TRUE(GetState() == BT_STATE_ON);
+
+  register_client_callback_sem_ = semaphore_new(0);
+  scan_result_callback_sem_ = semaphore_new(0);
+  listen_callback_sem_ = semaphore_new(0);
+
+  register_server_callback_sem_ = semaphore_new(0);
+  service_added_callback_sem_ = semaphore_new(0);
+  characteristic_added_callback_sem_ = semaphore_new(0);
+  descriptor_added_callback_sem_ = semaphore_new(0);
+  service_started_callback_sem_ = semaphore_new(0);
+  service_stopped_callback_sem_ = semaphore_new(0);
+  service_deleted_callback_sem_ = semaphore_new(0);
+
+  bluetooth::hal::BluetoothGattInterface::Initialize();
+  ASSERT_TRUE(bluetooth::hal::BluetoothGattInterface::IsInitialized());
+  auto gatt_interface = bluetooth::hal::BluetoothGattInterface::Get();
+  gatt_interface->AddClientObserver(this);
+  gatt_interface->AddServerObserver(this);
+
+  gatt_client_interface_ = gatt_interface->GetClientHALInterface();
+  gatt_server_interface_ = gatt_interface->GetServerHALInterface();
+
+  ASSERT_NE(nullptr, gatt_client_interface_);
+  ASSERT_NE(nullptr, gatt_server_interface_);
+}
+
+void GattTest::TearDown() {
+  gatt_client_interface_ = nullptr;
+  gatt_server_interface_ = nullptr;
+
+  semaphore_free(register_client_callback_sem_);
+  semaphore_free(scan_result_callback_sem_);
+  semaphore_free(listen_callback_sem_);
+
+  semaphore_free(register_server_callback_sem_);
+  semaphore_free(service_added_callback_sem_);
+  semaphore_free(characteristic_added_callback_sem_);
+  semaphore_free(descriptor_added_callback_sem_);
+  semaphore_free(service_started_callback_sem_);
+  semaphore_free(service_stopped_callback_sem_);
+  semaphore_free(service_deleted_callback_sem_);
+
+  bluetooth::hal::BluetoothGattInterface::CleanUp();
+
+  ASSERT_EQ(bt_interface()->disable(), BT_STATUS_SUCCESS);
+  semaphore_wait(adapter_state_changed_callback_sem_);
+  BluetoothTest::TearDown();
+}
+
+const btgatt_client_interface_t* GattTest::gatt_client_interface() {
+  return gatt_client_interface_;
+}
+
+const btgatt_server_interface_t* GattTest::gatt_server_interface() {
+  return gatt_server_interface_;
+}
+
+void GattTest::RegisterClientCallback(
+    bluetooth::hal::BluetoothGattInterface* /* unused */,
+    int status, int clientIf, const bt_uuid_t& app_uuid) {
+  status_ = status;
+  client_interface_id_ = clientIf;
+  semaphore_post(register_client_callback_sem_);
+}
+
+void GattTest::ScanResultCallback(
+    bluetooth::hal::BluetoothGattInterface* /* unused */,
+    const bt_bdaddr_t& bda, int rssi, uint8_t* adv_data) {
+  semaphore_post(scan_result_callback_sem_);
+}
+
+void GattTest::ListenCallback(
+    bluetooth::hal::BluetoothGattInterface* /* unused */,
+    int status, int client_if) {
+  status_ = status;
+  client_interface_id_ = client_if;
+  semaphore_post(listen_callback_sem_);
+}
+
+// GATT server callbacks
+void GattTest::RegisterServerCallback(
+    bluetooth::hal::BluetoothGattInterface* /* unused */,
+    int status, int server_if, const bt_uuid_t& uuid) {
+  status_ = status;
+  server_interface_id_ = server_if;
+  semaphore_post(register_server_callback_sem_);
+}
+
+void GattTest::ServiceAddedCallback(
+    bluetooth::hal::BluetoothGattInterface* /* unused */,
+    int status, int server_if, const btgatt_srvc_id_t& srvc_id,
+    int srvc_handle) {
+  status_ = status;
+  server_interface_id_ = server_if;
+  service_handle_ = srvc_handle;
+  semaphore_post(service_added_callback_sem_);
+}
+
+void GattTest::CharacteristicAddedCallback(
+    bluetooth::hal::BluetoothGattInterface* /* unused */,
+    int status, int server_if, const bt_uuid_t& char_id,
+    int srvc_handle, int char_handle) {
+  status_ = status;
+  server_interface_id_ = server_if;
+  service_handle_ = srvc_handle;
+  characteristic_handle_ = char_handle;
+  semaphore_post(characteristic_added_callback_sem_);
+}
+
+void GattTest::DescriptorAddedCallback(
+    bluetooth::hal::BluetoothGattInterface* /* unused */,
+    int status, int server_if, const bt_uuid_t& descr_id,
+    int srvc_handle, int descr_handle) {
+  status_ = status;
+  server_interface_id_ = server_if;
+  service_handle_ = srvc_handle;
+  descriptor_handle_ = descr_handle;
+  semaphore_post(descriptor_added_callback_sem_);
+}
+
+void GattTest::ServiceStartedCallback(
+    bluetooth::hal::BluetoothGattInterface* /* unused */,
+    int status, int server_if, int srvc_handle) {
+  status_ = status;
+  server_interface_id_ = server_if;
+  service_handle_ = srvc_handle;
+  semaphore_post(service_started_callback_sem_);
+}
+
+void GattTest::ServiceStoppedCallback(
+    bluetooth::hal::BluetoothGattInterface* /* unused */,
+    int status, int server_if, int srvc_handle) {
+  status_ = status;
+  server_interface_id_ = server_if;
+  service_handle_ = srvc_handle;
+  semaphore_post(service_stopped_callback_sem_);
+}
+
+void GattTest::ServiceDeletedCallback(
+    bluetooth::hal::BluetoothGattInterface* /* unused */,
+    int status, int server_if, int srvc_handle) {
+  status_ = status;
+  server_interface_id_ = server_if;
+  service_handle_ = srvc_handle;
+  semaphore_post(service_deleted_callback_sem_);
+}
+
+}  // bttest
diff --git a/rtkbt/code/bt/test/suite/gatt/gatt_test.h b/rtkbt/code/bt/test/suite/gatt/gatt_test.h
new file mode 100755
index 0000000..f3525fe
--- /dev/null
+++ b/rtkbt/code/bt/test/suite/gatt/gatt_test.h
@@ -0,0 +1,137 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2015 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#include "adapter/bluetooth_test.h"
+#include "service/hal/bluetooth_gatt_interface.h"
+
+namespace bttest {
+
+// This class represents the Bluetooth GATT testing framework and provides
+// helpers and callbacks for GUnit to use for testing gatt.
+class GattTest : public BluetoothTest,
+                 public bluetooth::hal::BluetoothGattInterface::ClientObserver,
+                 public bluetooth::hal::BluetoothGattInterface::ServerObserver {
+ protected:
+  GattTest() = default;
+  virtual ~GattTest() = default;
+
+  // Gets the gatt_client_interface
+  const btgatt_client_interface_t* gatt_client_interface();
+
+  // Gets the gatt_server_interface
+  const btgatt_server_interface_t* gatt_server_interface();
+
+  // Getters for variables that track GATT-related state
+  int client_interface_id() const { return client_interface_id_; }
+  int server_interface_id() const { return server_interface_id_; }
+  int service_handle() const { return service_handle_; }
+  int characteristic_handle() const { return characteristic_handle_; }
+  int descriptor_handle() const { return descriptor_handle_; }
+  int status() const { return status_; }
+
+  // SetUp initializes the Bluetooth interfaces and the GATT Interface as well
+  // as registers the callbacks and initializes the semaphores before every test
+  virtual void SetUp();
+
+  // TearDown cleans up the Bluetooth and GATT interfaces and destroys the
+  // callback semaphores at the end of every test
+  virtual void TearDown();
+
+  // bluetooth::hal::BluetoothGattInterface::ClientObserver overrides
+  void RegisterClientCallback(
+      bluetooth::hal::BluetoothGattInterface* /* unused */,
+      int status, int clientIf, const bt_uuid_t& app_uuid) override;
+  void ScanResultCallback(
+      bluetooth::hal::BluetoothGattInterface* /* unused */,
+      const bt_bdaddr_t& bda, int rssi, uint8_t* adv_data) override;
+  void ListenCallback(
+      bluetooth::hal::BluetoothGattInterface* /* unused */,
+      int status, int client_if) override;
+
+  // bluetooth::hal::BluetoothGattInterface::ServerObserver overrides
+  void RegisterServerCallback(
+      bluetooth::hal::BluetoothGattInterface* /* unused */,
+      int status, int server_if, const bt_uuid_t& uuid) override;
+  void ServiceAddedCallback(
+      bluetooth::hal::BluetoothGattInterface* /* unused */,
+      int status, int server_if, const btgatt_srvc_id_t& srvc_id,
+      int srvc_handle) override;
+  void CharacteristicAddedCallback(
+      bluetooth::hal::BluetoothGattInterface* /* unused */,
+      int status, int server_if, const bt_uuid_t& char_id,
+      int srvc_handle, int char_handle) override;
+  void DescriptorAddedCallback(
+      bluetooth::hal::BluetoothGattInterface* /* unused */,
+      int status, int server_if, const bt_uuid_t& descr_id,
+      int srvc_handle, int descr_handle) override;
+  void ServiceStartedCallback(
+      bluetooth::hal::BluetoothGattInterface* /* unused */,
+      int status, int server_if, int srvc_handle) override;
+  void ServiceStoppedCallback(
+      bluetooth::hal::BluetoothGattInterface* /* unused */,
+      int status, int server_if, int srvc_handle) override;
+  void ServiceDeletedCallback(
+      bluetooth::hal::BluetoothGattInterface* /* unused */,
+      int status, int server_if, int srvc_handle) override;
+
+  // Semaphores used to wait for specific callback execution. Each callback
+  // has its own semaphore associated with it
+  semaphore_t* register_client_callback_sem_;
+  semaphore_t* scan_result_callback_sem_;
+  semaphore_t* listen_callback_sem_;
+
+  semaphore_t* register_server_callback_sem_;
+  semaphore_t* service_added_callback_sem_;
+  semaphore_t* characteristic_added_callback_sem_;
+  semaphore_t* descriptor_added_callback_sem_;
+  semaphore_t* service_started_callback_sem_;
+  semaphore_t* service_stopped_callback_sem_;
+  semaphore_t* service_deleted_callback_sem_;
+
+ private:
+  // The gatt_client_interface that all the tests use to interact with the HAL
+  const btgatt_client_interface_t* gatt_client_interface_;
+
+  // The gatt_server_interface that all the tests use to interact with the HAL
+  const btgatt_server_interface_t* gatt_server_interface_;
+
+  // No mutex needed for these as the semaphores should ensure
+  // synchronous access
+
+  // An ID that is used as a handle for each gatt client.
+  int client_interface_id_;
+
+  // An ID that is used as a handle for each gatt server.
+  int server_interface_id_;
+
+  // A handle to the last used service.
+  int service_handle_;
+
+  // A handle to the last characteristic added.
+  int characteristic_handle_;
+
+  // A handle to the last descriptor added.
+  int descriptor_handle_;
+
+  // The status of the last callback. Is BT_STATUS_SUCCESS if no issues.
+  int status_;
+
+  DISALLOW_COPY_AND_ASSIGN(GattTest);
+};
+
+}  // bttest
diff --git a/rtkbt/code/bt/test/suite/gatt/gatt_unittest.cpp b/rtkbt/code/bt/test/suite/gatt/gatt_unittest.cpp
new file mode 100755
index 0000000..e731634
--- /dev/null
+++ b/rtkbt/code/bt/test/suite/gatt/gatt_unittest.cpp
@@ -0,0 +1,163 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2015 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#include <stdlib.h>
+#include <time.h>
+#include <unistd.h>
+
+#include "gatt/gatt_test.h"
+
+#define DEFAULT_RANDOM_SEED 42
+
+namespace {
+
+static void create_random_uuid(bt_uuid_t *uuid, int seed) {
+  srand(seed < 0 ? time(NULL) : seed);
+  for (int i = 0; i < 16; ++i) {
+    uuid->uu[i] = (uint8_t) (rand() % 256);
+  }
+}
+
+}  // namespace
+
+namespace bttest {
+
+TEST_F(GattTest, GattClientRegister) {
+  // Registers gatt client.
+  bt_uuid_t gatt_client_uuid;
+  create_random_uuid(&gatt_client_uuid, DEFAULT_RANDOM_SEED);
+  gatt_client_interface()->register_client(&gatt_client_uuid);
+  semaphore_wait(register_client_callback_sem_);
+  EXPECT_TRUE(status() == BT_STATUS_SUCCESS)
+    << "Error registering GATT client app callback.";
+
+  // Unregisters gatt client. No callback is expected.
+  gatt_client_interface()->unregister_client(client_interface_id());
+}
+
+TEST_F(GattTest, GattClientScanRemoteDevice) {
+  // Starts BLE scan. NB: This test assumes there is a BLE beacon advertising nearby.
+  gatt_client_interface()->scan(true);
+  semaphore_wait(scan_result_callback_sem_);
+
+  // Ends BLE scan. No callback is expected.
+  gatt_client_interface()->scan(false);
+}
+
+TEST_F(GattTest, GattClientAdvertise) {
+  // Registers a new client app.
+  bt_uuid_t gatt_client_uuid;
+  create_random_uuid(&gatt_client_uuid, DEFAULT_RANDOM_SEED);
+  gatt_client_interface()->register_client(&gatt_client_uuid);
+  semaphore_wait(register_client_callback_sem_);
+  EXPECT_TRUE(status() == BT_STATUS_SUCCESS)
+    << "Error registering GATT client app callback.";
+
+  // Starts advertising.
+  gatt_client_interface()->listen(client_interface_id(), true);
+  semaphore_wait(listen_callback_sem_);
+  EXPECT_TRUE(status() == BT_STATUS_SUCCESS)
+    << "Error starting BLE advertisement.";
+
+  // Stops advertising.
+  gatt_client_interface()->listen(client_interface_id(), false);
+  semaphore_wait(listen_callback_sem_);
+  EXPECT_TRUE(status() == BT_STATUS_SUCCESS)
+    << "Error stopping BLE advertisement.";
+
+  // Unregisters gatt server. No callback is expected.
+  gatt_client_interface()->unregister_client(client_interface_id());
+}
+
+TEST_F(GattTest, GattServerRegister) {
+  // Registers gatt server.
+  bt_uuid_t gatt_server_uuid;
+  create_random_uuid(&gatt_server_uuid, DEFAULT_RANDOM_SEED);
+  gatt_server_interface()->register_server(&gatt_server_uuid);
+  semaphore_wait(register_server_callback_sem_);
+  EXPECT_TRUE(status() == BT_STATUS_SUCCESS)
+    << "Error registering GATT server app callback.";
+
+  // Unregisters gatt server. No callback is expected.
+  gatt_server_interface()->unregister_server(server_interface_id());
+}
+
+TEST_F(GattTest, GattServerBuild) {
+  // Registers gatt server.
+  bt_uuid_t gatt_server_uuid;
+  create_random_uuid(&gatt_server_uuid, DEFAULT_RANDOM_SEED);
+  gatt_server_interface()->register_server(&gatt_server_uuid);
+  semaphore_wait(register_server_callback_sem_);
+  EXPECT_TRUE(status() == BT_STATUS_SUCCESS)
+    << "Error registering GATT server app callback.";
+
+  // Service UUID.
+  btgatt_srvc_id_t srvc_id;
+  srvc_id.id.inst_id = 0;   // there is only one instance of this service.
+  srvc_id.is_primary = 1;   // this service is primary.
+  create_random_uuid(&srvc_id.id.uuid, -1);
+
+  // Characteristics UUID.
+  bt_uuid_t char_uuid;
+  create_random_uuid(&char_uuid, -1);
+
+  // Descriptor UUID.
+  bt_uuid_t desc_uuid;
+  create_random_uuid(&desc_uuid, -1);
+
+  // Adds service.
+  int server_if = server_interface_id();
+  gatt_server_interface()->add_service(server_if, &srvc_id, 4 /* # handles */);
+  semaphore_wait(service_added_callback_sem_);
+  EXPECT_TRUE(status() == BT_STATUS_SUCCESS) << "Error adding service.";
+
+  // Adds characteristics.
+  int srvc_handle = service_handle();
+  gatt_server_interface()->add_characteristic(server_if, srvc_handle,
+      &char_uuid, 0x10 /* notification */, 0x01 /* read only */);
+  semaphore_wait(characteristic_added_callback_sem_);
+  EXPECT_TRUE(status() == BT_STATUS_SUCCESS)
+      << "Error adding characteristics.";
+
+  // Adds descriptor.
+  gatt_server_interface()->add_descriptor(server_if, srvc_handle,
+                                          &desc_uuid, 0x01);
+  semaphore_wait(descriptor_added_callback_sem_);
+  EXPECT_TRUE(status() == BT_STATUS_SUCCESS)
+      << "Error adding descriptor.";
+
+  // Starts server.
+  gatt_server_interface()->start_service(server_if, srvc_handle, 2 /*BREDR/LE*/);
+  semaphore_wait(service_started_callback_sem_);
+  EXPECT_TRUE(status() == BT_STATUS_SUCCESS) << "Error starting server.";
+
+  // Stops server.
+  gatt_server_interface()->stop_service(server_if, srvc_handle);
+  semaphore_wait(service_stopped_callback_sem_);
+  EXPECT_TRUE(status() == BT_STATUS_SUCCESS) << "Error stopping server.";
+
+  // Deletes service.
+  gatt_server_interface()->delete_service(server_if, srvc_handle);
+  semaphore_wait(service_deleted_callback_sem_);
+  EXPECT_TRUE(status() == BT_STATUS_SUCCESS) << "Error deleting service.";
+
+  // Unregisters gatt server. No callback is expected.
+  gatt_server_interface()->unregister_server(server_if);
+}
+
+}  // bttest
diff --git a/rtkbt/code/bt/tools/Android.mk.disabled b/rtkbt/code/bt/tools/Android.mk.disabled
new file mode 100755
index 0000000..5053e7d
--- /dev/null
+++ b/rtkbt/code/bt/tools/Android.mk.disabled
@@ -0,0 +1 @@
+include $(call all-subdir-makefiles)
diff --git a/rtkbt/code/bt/tools/bdtool/Android.mk.disabled b/rtkbt/code/bt/tools/bdtool/Android.mk.disabled
new file mode 100755
index 0000000..af04746
--- /dev/null
+++ b/rtkbt/code/bt/tools/bdtool/Android.mk.disabled
@@ -0,0 +1,49 @@
+#
+# Copyright (C) 2014 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+LOCAL_PATH := $(call my-dir)
+
+# Bluetooth tools for target
+# ========================================================
+include $(CLEAR_VARS)
+
+LOCAL_MODULE_TAGS := optional
+LOCAL_MODULE := net_bdtool
+
+LOCAL_SRC_FILES := \
+  adapter.c \
+  bdtool.c \
+  ../../test/suite/support/callbacks.c \
+  ../../test/suite/support/gatt.c \
+  ../../test/suite/support/hal.c \
+  ../../test/suite/support/pan.c
+
+LOCAL_STATIC_LIBRARIES := \
+  libbtcore \
+  libosi
+
+LOCAL_C_INCLUDES := \
+  $(LOCAL_PATH)/../../test/suite \
+  $(LOCAL_PATH)/../..
+
+LOCAL_SHARED_LIBRARIES += \
+  libhardware liblog
+
+LOCAL_CFLAGS += $(bluetooth_CFLAGS)
+LOCAL_CONLYFLAGS += $(bluetooth_CONLYFLAGS)
+LOCAL_CPPFLAGS += $(bluetooth_CPPFLAGS)
+
+include $(BUILD_EXECUTABLE)
diff --git a/rtkbt/code/bt/tools/bdtool/adapter.c b/rtkbt/code/bt/tools/bdtool/adapter.c
new file mode 100755
index 0000000..dde8d41
--- /dev/null
+++ b/rtkbt/code/bt/tools/bdtool/adapter.c
@@ -0,0 +1,306 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#include "base.h"
+#include "btcore/include/bdaddr.h"
+#include "btcore/include/property.h"
+#include "support/adapter.h"
+#include "support/callbacks.h"
+
+static bt_state_t state;
+static int property_count = 0;
+static bt_property_t *properties = NULL;
+static bt_discovery_state_t discovery_state;
+static bt_acl_state_t acl_state;
+static bt_bond_state_t bond_state;
+
+static void parse_properties(int num_properties, bt_property_t *property);
+
+// Returns the current adapter state.
+bt_state_t adapter_get_state() {
+  return state;
+}
+
+// Returns the number of adapter properties.
+int adapter_get_property_count() {
+  return property_count;
+}
+
+// Returns the specified property.
+bt_property_t *adapter_get_property(bt_property_type_t type) {
+  for (int i = 0; i < property_count; ++i) {
+    if (properties[i].type == type) {
+      return &properties[i];
+    }
+  }
+
+  return NULL;
+}
+
+// Returns the device discovery state.
+bt_discovery_state_t adapter_get_discovery_state() {
+  return discovery_state;
+}
+
+// Returns the device acl state.
+bt_acl_state_t adapter_get_acl_state() {
+  return acl_state;
+}
+
+// Returns the device bond state.
+bt_bond_state_t adapter_get_bond_state() {
+  return bond_state;
+}
+
+// callback
+void acl_state_changed(bt_status_t status, bt_bdaddr_t *remote_bd_addr, bt_acl_state_t state) {
+  acl_state = state;
+  CALLBACK_RET();
+}
+
+// callback
+void adapter_properties(bt_status_t status,
+    int num_properties,
+    bt_property_t *new_properties) {
+  property_free_array(properties, property_count);
+  properties = property_copy_array(new_properties, num_properties);
+  property_count = num_properties;
+
+  CALLBACK_RET();
+}
+
+// callback
+void adapter_state_changed(bt_state_t new_state) {
+  state = new_state;
+  CALLBACK_RET();
+}
+
+// callback
+void bond_state_changed(bt_status_t status,
+    bt_bdaddr_t *bdaddr,
+    bt_bond_state_t state) {
+  char buf[18];
+  bond_state = state;
+
+  const char *state_name = "Bond state unknown";
+  switch (bond_state) {
+    case BT_BOND_STATE_NONE:
+      state_name = "Bond state none";
+      break;
+
+    case BT_BOND_STATE_BONDING:
+      state_name = "Bond state bonding";
+      break;
+
+    case BT_BOND_STATE_BONDED:
+      state_name = "Bond state bonded";
+      break;
+
+      // default none
+  }
+  fprintf(stdout, "Bond state changed callback addr:%s state:%s\n", bdaddr_to_string(bdaddr, buf, sizeof(buf)), state_name);
+
+  CALLBACK_RET();
+}
+
+// callback
+void device_found(int num_properties, bt_property_t *property) {
+  fprintf(stdout, "Device found num_properties:%d\n", num_properties);
+  parse_properties(num_properties, property);
+
+  CALLBACK_RET();
+}
+
+// callback
+void discovery_state_changed(bt_discovery_state_t state) {
+  const char *state_name = "Unknown";
+  discovery_state = state;
+
+  switch (discovery_state) {
+    case BT_DISCOVERY_STOPPED:
+      state_name = "Discovery stopped";
+      break;
+
+    case BT_DISCOVERY_STARTED:
+      state_name = "Discovery started";
+      break;
+
+      // default omitted
+  }
+  fprintf(stdout, "Discover state %s\n", state_name);
+
+  CALLBACK_RET();
+}
+
+// callback
+void remote_device_properties(bt_status_t status,
+    bt_bdaddr_t *bdaddr,
+    int num_properties,
+    bt_property_t *properties) {
+  char buf[18];
+  fprintf(stdout, "Device found bdaddr:%s num_properties:%d\n",
+      bdaddr_to_string(bdaddr, buf, sizeof(buf)), num_properties);
+
+  parse_properties(num_properties, properties);
+
+  CALLBACK_RET();
+}
+
+// callback
+void ssp_request(
+    bt_bdaddr_t *remote_bd_addr,
+    bt_bdname_t *bd_name,
+    uint32_t cod,
+    bt_ssp_variant_t pairing_variant,
+    uint32_t pass_key) {
+  char *pairing_variant_name = "Unknown";
+
+  switch (pairing_variant) {
+    case BT_SSP_VARIANT_PASSKEY_CONFIRMATION:
+      pairing_variant_name = "Passkey confirmation";
+      break;
+    case BT_SSP_VARIANT_PASSKEY_ENTRY:
+      pairing_variant_name = "Passkey entry";
+      break;
+
+    case BT_SSP_VARIANT_CONSENT:
+      pairing_variant_name = "Passkey consent";
+      break;
+
+    case BT_SSP_VARIANT_PASSKEY_NOTIFICATION:
+      pairing_variant_name = "Passkey notification";
+      break;
+  }
+
+  fprintf(stdout, "Got ssp request device_class:%u passkey:%x pairing_variant:%s\n", cod, pass_key, pairing_variant_name);
+  char buf[18];
+  fprintf(stdout, "Device found:%s %s\n", bdaddr_to_string(remote_bd_addr, buf, sizeof(buf)), bd_name->name);
+
+
+  fprintf(stdout, "auto-accepting bond\n");
+  bool accept = true;
+  int rc = bt_interface->ssp_reply(remote_bd_addr, pairing_variant,
+      (uint8_t)accept, pass_key);
+  CALLBACK_RET();
+}
+
+// callback
+void thread_evt(bt_cb_thread_evt evt) {
+  CALLBACK_RET();
+}
+
+static void parse_properties(int num_properties, bt_property_t *property) {
+  while (num_properties-- > 0) {
+    switch(property->type) {
+      case BT_PROPERTY_BDNAME:
+        {
+          const bt_bdname_t *name = property_as_name(property);
+          if (name)
+            fprintf(stdout, " name:%s\n", name->name);
+        }
+        break;
+
+      case BT_PROPERTY_BDADDR:
+        {
+          char buf[18];
+          const bt_bdaddr_t *addr = property_as_addr(property);
+          if (addr)
+            fprintf(stdout, " addr:%s\n", bdaddr_to_string(addr, buf, sizeof(buf)));
+        }
+        break;
+
+      case BT_PROPERTY_UUIDS:
+        {
+          size_t num_uuid;
+          const bt_uuid_t *uuid = property_as_uuids(property, &num_uuid);
+          if (uuid) {
+            for (size_t i = 0; i < num_uuid; i++) {
+              fprintf(stdout, " uuid:%zd: ", i);
+              for (size_t j = 0; j < sizeof(uuid); j++) {
+                fprintf(stdout, "%02x", uuid->uu[j]);
+              }
+              fprintf(stdout, "\n");
+            }
+          }
+        }
+        break;
+
+      case BT_PROPERTY_TYPE_OF_DEVICE:
+        {
+          bt_device_type_t device_type = property_as_device_type(property);
+          if (device_type) {
+            const struct {
+              const char * device_type;
+            } device_type_lookup[] = {
+              { "Unknown" },
+              { "Classic Only" },
+              { "BLE Only" },
+              { "Both Classic and BLE" },
+            };
+            int idx = (int)device_type;
+            if (idx > BT_DEVICE_DEVTYPE_DUAL)
+              idx = 0;
+            fprintf(stdout, " device_type:%s\n", device_type_lookup[idx].device_type);
+          }
+        }
+        break;
+
+      case BT_PROPERTY_CLASS_OF_DEVICE:
+        {
+          const bt_device_class_t *dc = property_as_device_class(property);
+          int dc_int = device_class_to_int(dc);
+          fprintf(stdout, " device_class:0x%x\n", dc_int);
+        }
+        break;
+
+      case BT_PROPERTY_REMOTE_RSSI:
+        {
+          int8_t rssi = property_as_rssi(property);
+          fprintf(stdout, " rssi:%d\n", rssi);
+        }
+        break;
+
+      case BT_PROPERTY_REMOTE_FRIENDLY_NAME:
+        {
+          const bt_bdname_t *name = property_as_name(property);
+          if (name)
+            fprintf(stdout, " remote_name:%s\n", name->name);
+        }
+        break;
+
+      case BT_PROPERTY_SERVICE_RECORD:
+      case BT_PROPERTY_ADAPTER_SCAN_MODE:
+      case BT_PROPERTY_ADAPTER_BONDED_DEVICES:
+      case BT_PROPERTY_ADAPTER_DISCOVERY_TIMEOUT:
+      case BT_PROPERTY_REMOTE_VERSION_INFO:
+      case BT_PROPERTY_LOCAL_LE_FEATURES:
+      case BT_PROPERTY_REMOTE_DEVICE_TIMESTAMP:
+      default:
+        {
+          fprintf(stderr, "Unhandled property type:%d len:%d\n", property->type, property->len);
+          uint8_t *p = (uint8_t *)property->val;
+          for (int i = 0; i < property->len; ++i, p++) {
+            fprintf(stderr, " %02x", *p);
+          }
+          if (property->len != 0)
+            fprintf(stderr, "\n");
+        }
+    }
+    property++;
+  }
+}
diff --git a/rtkbt/code/bt/tools/bdtool/bdtool.c b/rtkbt/code/bt/tools/bdtool/bdtool.c
new file mode 100755
index 0000000..0f81685
--- /dev/null
+++ b/rtkbt/code/bt/tools/bdtool/bdtool.c
@@ -0,0 +1,336 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 Google, Inc.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#include <getopt.h>
+#include <signal.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include "btcore/include/bdaddr.h"
+#include "btcore/include/property.h"
+#include "osi/include/osi.h"
+#include "test/suite/support/callbacks.h"
+#include "test/suite/support/hal.h"
+
+static const bt_uuid_t HFP_UUID = {{ 0x00, 0x00, 0x11, 0x1E, 0x00, 0x00, 0x10, 0x00, 0x80, 0x00, 0x00, 0x80, 0x5F, 0x9B, 0x34, 0xFB }};
+static const bt_uuid_t HFP_AG_UUID = {{ 0x00, 0x00, 0x11, 0x1F, 0x00, 0x00, 0x10, 0x00, 0x80, 0x00, 0x00, 0x80, 0x5F, 0x9B, 0x34, 0xFB }};
+
+const bt_interface_t *bt_interface;
+
+bt_bdaddr_t bt_remote_bdaddr;
+
+static int f_verbose;
+static bool discover = false;
+static bool discoverable = false;
+static bool bond = false;
+static bool up = false;
+static bool get_name = false;
+static bool set_name = false;
+static bool sco_listen = false;
+static bool sco_connect = false;
+
+static int timeout_in_sec = 30;
+static char *bd_name;
+
+static struct option long_options[] = {
+  {"bdaddr", required_argument, 0, 0 },
+  {"discover", no_argument, 0, 0 },
+  {"discoverable", no_argument, 0, 0 },
+  {"time", required_argument, 0, 0 },
+  {"bond", no_argument, 0, 0 },
+  {"up", no_argument, 0, 0 },
+  {"verbose", no_argument, 0, 0 },
+  {"get_name", no_argument, 0, 0 },
+  {"set_name", required_argument, 0, 0 },
+  {"sco_listen", no_argument, 0, 0 },
+  {"sco_connect", no_argument, 0, 0 },
+  {0, 0, 0, 0 }
+};
+
+static void usage(const char *name);
+static bool parse_args(int argc, char **argv);
+static void sig_handler(int signo);
+
+bt_property_t *adapter_get_property(bt_property_type_t type);
+
+int main(int argc, char **argv) {
+  if (!parse_args(argc, argv)) {
+    usage(argv[0]);
+  }
+
+  if (bond && discoverable) {
+    fprintf(stderr, "Can only select either bond or discoverable, not both\n");
+    usage(argv[0]);
+  }
+
+  if (sco_listen && sco_connect) {
+    fprintf(stderr, "Can only select either sco_listen or sco_connect, not both\n");
+    usage(argv[0]);
+  }
+
+  if (!bond && !discover && !discoverable && !up && !get_name && !set_name && !sco_listen && !sco_connect) {
+    fprintf(stderr, "Must specify one command\n");
+    usage(argv[0]);
+  }
+
+  if (signal(SIGINT, sig_handler) == SIG_ERR) {
+    fprintf(stderr, "Will be unable to catch signals\n");
+  }
+
+  fprintf(stdout, "Bringing up bluetooth adapter\n");
+  if (!hal_open(callbacks_get_adapter_struct())) {
+    fprintf(stderr, "Unable to open Bluetooth HAL.\n");
+    return 1;
+  }
+
+  if (discover) {
+    CALL_AND_WAIT(bt_interface->enable(), adapter_state_changed);
+    fprintf(stdout, "BT adapter is up\n");
+
+    fprintf(stdout, "Starting to start discovery\n");
+    CALL_AND_WAIT(bt_interface->start_discovery(), discovery_state_changed);
+    fprintf(stdout, "Started discovery for %d seconds\n", timeout_in_sec);
+
+    sleep(timeout_in_sec);
+
+    fprintf(stdout, "Starting to cancel discovery\n");
+    CALL_AND_WAIT(bt_interface->cancel_discovery(), discovery_state_changed);
+    fprintf(stdout, "Cancelled discovery after %d seconds\n", timeout_in_sec);
+  }
+
+  if (discoverable) {
+    CALL_AND_WAIT(bt_interface->enable(), adapter_state_changed);
+    fprintf(stdout, "BT adapter is up\n");
+
+    bt_property_t *property = property_new_scan_mode(BT_SCAN_MODE_CONNECTABLE_DISCOVERABLE);
+
+    int rc = bt_interface->set_adapter_property(property);
+    fprintf(stdout, "Set rc:%d device as discoverable for %d seconds\n", rc, timeout_in_sec);
+
+    sleep(timeout_in_sec);
+
+    property_free(property);
+  }
+
+   if (bond) {
+    if (bdaddr_is_empty(&bt_remote_bdaddr)) {
+      fprintf(stderr, "Must specify a remote device address [ --bdaddr=xx:yy:zz:aa:bb:cc ]\n");
+      exit(1);
+    }
+
+    CALL_AND_WAIT(bt_interface->enable(), adapter_state_changed);
+    fprintf(stdout, "BT adapter is up\n");
+
+    int rc = bt_interface->create_bond(&bt_remote_bdaddr, 0 /* UNKNOWN; Currently not documented :( */);
+    fprintf(stdout, "Started bonding:%d for %d seconds\n", rc, timeout_in_sec);
+
+    sleep(timeout_in_sec);
+  }
+
+  if (up) {
+    CALL_AND_WAIT(bt_interface->enable(), adapter_state_changed);
+    fprintf(stdout, "BT adapter is up\n");
+
+    fprintf(stdout, "Waiting for %d seconds\n", timeout_in_sec);
+    sleep(timeout_in_sec);
+  }
+
+  if (get_name) {
+    CALL_AND_WAIT(bt_interface->enable(), adapter_state_changed);
+    fprintf(stdout, "BT adapter is up\n");
+    int error;
+    CALL_AND_WAIT(error = bt_interface->get_adapter_property(BT_PROPERTY_BDNAME), adapter_properties);
+    if (error != BT_STATUS_SUCCESS) {
+      fprintf(stderr, "Unable to get adapter property\n");
+      exit(1);
+    }
+    bt_property_t *property = adapter_get_property(BT_PROPERTY_BDNAME);
+    const bt_bdname_t *name = property_as_name(property);
+    if (name)
+      printf("Queried bluetooth device name:%s\n", name->name);
+    else
+      printf("No name\n");
+  }
+
+  if (set_name) {
+    CALL_AND_WAIT(bt_interface->enable(), adapter_state_changed);
+    fprintf(stdout, "BT adapter is up\n");
+
+    bt_property_t *property = property_new_name(bd_name);
+    printf("Setting bluetooth device name to:%s\n", bd_name);
+    int error;
+    CALL_AND_WAIT(error = bt_interface->set_adapter_property(property), adapter_properties);
+    if (error != BT_STATUS_SUCCESS) {
+      fprintf(stderr, "Unable to set adapter property\n");
+      exit(1);
+    }
+    CALL_AND_WAIT(error = bt_interface->get_adapter_property(BT_PROPERTY_BDNAME), adapter_properties);
+    if (error != BT_STATUS_SUCCESS) {
+      fprintf(stderr, "Unable to get adapter property\n");
+      exit(1);
+    }
+    property_free(property);
+    sleep(timeout_in_sec);
+  }
+
+  const int app_uid = 0;
+
+  if (sco_listen) {
+    CALL_AND_WAIT(bt_interface->enable(), adapter_state_changed);
+    fprintf(stdout, "BT adapter is up\n");
+
+    bt_property_t *property = property_new_scan_mode(BT_SCAN_MODE_CONNECTABLE_DISCOVERABLE);
+    CALL_AND_WAIT(bt_interface->set_adapter_property(property), adapter_properties);
+    property_free(property);
+
+    const btsock_interface_t *sock = bt_interface->get_profile_interface(BT_PROFILE_SOCKETS_ID);
+
+    int rfcomm_fd = INVALID_FD;
+    int error = sock->listen(BTSOCK_RFCOMM, "meow", (const uint8_t *)&HFP_AG_UUID, 0, &rfcomm_fd, 0, app_uid);
+    if (error != BT_STATUS_SUCCESS) {
+      fprintf(stderr, "Unable to listen for incoming RFCOMM socket: %d\n", error);
+      exit(1);
+    }
+
+    int sock_fd = INVALID_FD;
+    error = sock->listen(BTSOCK_SCO, NULL, NULL, 5, &sock_fd, 0, app_uid);
+    if (error != BT_STATUS_SUCCESS) {
+      fprintf(stderr, "Unable to listen for incoming SCO sockets: %d\n", error);
+      exit(1);
+    }
+    fprintf(stdout, "Waiting for incoming SCO connections...\n");
+    sleep(timeout_in_sec);
+  }
+
+  if (sco_connect) {
+    if (bdaddr_is_empty(&bt_remote_bdaddr)) {
+      fprintf(stderr, "Must specify a remote device address [ --bdaddr=xx:yy:zz:aa:bb:cc ]\n");
+      exit(1);
+    }
+
+    CALL_AND_WAIT(bt_interface->enable(), adapter_state_changed);
+    fprintf(stdout, "BT adapter is up\n");
+
+    const btsock_interface_t *sock = bt_interface->get_profile_interface(BT_PROFILE_SOCKETS_ID);
+
+    int rfcomm_fd = INVALID_FD;
+    int error = sock->connect(&bt_remote_bdaddr, BTSOCK_RFCOMM, (const uint8_t *)&HFP_AG_UUID, 0, &rfcomm_fd, 0, app_uid);
+    if (error != BT_STATUS_SUCCESS) {
+      fprintf(stderr, "Unable to connect to RFCOMM socket: %d.\n", error);
+      exit(1);
+    }
+
+    WAIT(acl_state_changed);
+
+    fprintf(stdout, "Establishing SCO connection...\n");
+
+    int sock_fd = INVALID_FD;
+    error = sock->connect(&bt_remote_bdaddr, BTSOCK_SCO, NULL, 5, &sock_fd, 0, app_uid);
+    if (error != BT_STATUS_SUCCESS) {
+      fprintf(stderr, "Unable to connect to SCO socket: %d.\n", error);
+      exit(1);
+    }
+    sleep(timeout_in_sec);
+  }
+
+  CALL_AND_WAIT(bt_interface->disable(), adapter_state_changed);
+  fprintf(stdout, "BT adapter is down\n");
+}
+
+static void sig_handler(int signo) {
+  if (signo == SIGINT) {
+    fprintf(stderr, "Received SIGINT\n");
+    CALL_AND_WAIT(bt_interface->disable(), adapter_state_changed);
+    fprintf(stderr, "BT adapter is down\n");
+    exit(1);
+  }
+}
+
+static void usage(const char *name) {
+  fprintf(stderr, "Usage: %s [--bond|--discover|--discoverable|--up|--sco_listen|--sco_connect] [--bdaddr=<bdaddr>] [--time=<time_in_sec>] --verbose\n", name);
+  fprintf(stderr, "     bond: Discover actively advertising devices\n");
+  fprintf(stderr, "     discover: Discover actively advertising devices\n");
+  fprintf(stderr, "     discoverable: Set into a connectable and discoverable mode\n");
+  fprintf(stderr, "     up: Only bring up stack\n");
+  fprintf(stderr, "     sco_listen: Listen for incoming SCO connections\n");
+  fprintf(stderr, "     sco_connect: Establish a SCO connection with another device\n");
+  fprintf(stderr, "     time: Time to hold in the specified mode\n");
+  exit(1);
+}
+
+static bool parse_args(int argc, char **argv) {
+  while (1) {
+    int option_index = 0;
+    int c = getopt_long_only(argc, argv, "", long_options, &option_index);
+    if (c != 0)
+      break;
+
+    switch (c) {
+      case 0:
+        if (option_index == 0) {
+          if (!string_to_bdaddr(optarg, &bt_remote_bdaddr)) {
+            return false;
+          }
+        }
+        if (option_index == 1) {
+          discover = true;
+        }
+        if (option_index == 2) {
+          discoverable = true;
+        }
+        if (option_index == 3) {
+          timeout_in_sec = atoi(optarg);
+        }
+        if (option_index == 4) {
+          bond  = true;
+        }
+        if (option_index == 5) {
+          up = true;
+        }
+        if (option_index == 6) {
+          f_verbose++;
+        }
+        if (option_index == 7) {
+          get_name = true;
+        }
+        if (option_index == 8) {
+          bd_name = (char *)optarg;
+          set_name = true;
+        }
+        if (option_index == 9) {
+          sco_listen = true;
+        }
+        if (option_index == 10) {
+          sco_connect = true;
+        }
+        break;
+
+      default:
+        fprintf(stderr, "?? getopt returned character code 0%o ??\n", c);
+    }
+  }
+
+  if (optind < argc) {
+    fprintf(stderr, "non-option ARGV-elements: ");
+    while (optind < argc)
+      fprintf(stderr, "%s ", argv[optind++]);
+    fprintf(stderr, "\n");
+    return false;
+  }
+  return true;
+}
diff --git a/rtkbt/code/bt/tools/hci/Android.mk.disabled b/rtkbt/code/bt/tools/hci/Android.mk.disabled
new file mode 100755
index 0000000..3e2286a
--- /dev/null
+++ b/rtkbt/code/bt/tools/hci/Android.mk.disabled
@@ -0,0 +1,34 @@
+#
+# Copyright (C) 2014 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+LOCAL_PATH := $(call my-dir)
+
+# Bluetooth HCI tools for target
+# ========================================================
+include $(CLEAR_VARS)
+
+LOCAL_MODULE_TAGS := optional
+LOCAL_MODULE := net_hci
+
+LOCAL_SRC_FILES := main.c
+LOCAL_STATIC_LIBRARIES := libosi
+LOCAL_C_INCLUDES := $(LOCAL_PATH)/../../
+
+LOCAL_CFLAGS += $(bluetooth_CFLAGS)
+LOCAL_CONLYFLAGS += $(bluetooth_CONLYFLAGS)
+LOCAL_CPPFLAGS += $(bluetooth_CPPFLAGS)
+
+include $(BUILD_EXECUTABLE)
diff --git a/rtkbt/code/bt/tools/hci/main.c b/rtkbt/code/bt/tools/hci/main.c
new file mode 100755
index 0000000..4fbb457
--- /dev/null
+++ b/rtkbt/code/bt/tools/hci/main.c
@@ -0,0 +1,215 @@
+#include <hardware/bluetooth.h>
+#include <netinet/in.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include "osi/include/osi.h"
+
+typedef int (*handler_t)(int argc, char **argv);
+
+typedef enum {
+  HCI_PACKET_COMMAND  = 1,
+  HCI_PACKET_ACL_DATA = 2,
+  HCI_PACKET_SCO_DATA = 3,
+  HCI_PACKET_EVENT    = 4,
+} hci_packet_t;
+
+typedef struct {
+  const char *name;
+  const char *help;
+  handler_t handler;
+} command_t;
+
+static int help(int argc, char **argv);
+static int set_discoverable(int argc, char **argv);
+static int set_name(int argc, char **argv);
+static int set_pcm_loopback(int argc, char **argv);
+static int set_sco_route(int argc, char **argv);
+
+static bool write_hci_command(hci_packet_t type, const void *packet, size_t length);
+static const command_t *find_command(const char *name);
+static void usage(const char *name);
+
+static const command_t commands[] = {
+  { "help", "<command> - shows help text for <command>.", help },
+  { "setDiscoverable", "(true|false) - whether the controller should be discoverable.", set_discoverable },
+  { "setName", "<name> - sets the device's Bluetooth name to <name>.", set_name },
+  { "setPcmLoopback", "(true|false) - enables or disables PCM loopback on the controller.", set_pcm_loopback },
+  { "setScoRoute", "(pcm|i2s|uart) - sets the SCO packet route to one of the specified buses.", set_sco_route },
+};
+
+static int help(int argc, char **argv) {
+  if (!argc) {
+    printf("No help command specified.\n");
+    return 1;
+  }
+
+  const command_t *command = find_command(argv[0]);
+  if (!command) {
+    printf("No command named '%s'.\n", argv[0]);
+    return 2;
+  }
+
+  printf("%s %s\n", argv[0], command->help);
+  return 0;
+}
+
+static int set_discoverable(int argc, char **argv) {
+  if (argc != 1) {
+    printf("Discoverable mode not specified.\n");
+    return 1;
+  }
+
+  if (strcmp(argv[0], "true") && strcmp(argv[0], "false")) {
+    printf("Invalid discoverable mode '%s'.\n", argv[0]);
+    return 2;
+  }
+
+  uint8_t packet[] = { 0x1A, 0x0C, 0x01, 0x00 };
+  if (argv[0][0] == 't')
+    packet[ARRAY_SIZE(packet) - 1] = 0x03;
+
+  return !write_hci_command(HCI_PACKET_COMMAND, packet, ARRAY_SIZE(packet));
+}
+
+static int set_name(int argc, char **argv) {
+  if (argc != 1) {
+    printf("Device name not specified.\n");
+    return 1;
+  }
+
+  size_t len = strlen(argv[0]);
+  if (len > 247) {
+    printf("Device name cannot exceed 247 bytes.\n");
+    return 2;
+  }
+
+  uint8_t packet[251] = { 0x13, 0x0C, 248 };
+  memcpy(&packet[3], argv[0], len + 1);
+
+  if (!write_hci_command(HCI_PACKET_COMMAND, packet, sizeof(packet)))
+    return 1;
+
+  memset(&packet[0], 0, sizeof(packet));
+  packet[0] = 0x52;
+  packet[1] = 0x0C;
+  packet[2] = 0xF1;  // HCI command packet length.
+  packet[3] = 0x01;  // FEC required.
+  packet[4] = len + 1;
+  packet[5] = 0x09;  // Device name field tag.
+  memcpy(&packet[6], argv[0], len);
+  return !write_hci_command(HCI_PACKET_COMMAND, packet, 0xF4);
+}
+
+static int set_pcm_loopback(int argc, char **argv) {
+  if (argc != 1) {
+    printf("PCM loopback mode not specified.\n");
+    return 1;
+  }
+
+  if (strcmp(argv[0], "true") && strcmp(argv[0], "false")) {
+    printf("Invalid PCM mode '%s'.\n", argv[0]);
+    return 2;
+  }
+
+  uint8_t packet[] = { 0x24, 0xFC, 0x01, 0x00 };
+  if (argv[0][0] == 't')
+    packet[ARRAY_SIZE(packet) - 1] = 0x01;
+
+  return !write_hci_command(HCI_PACKET_COMMAND, packet, ARRAY_SIZE(packet));
+}
+
+static int set_sco_route(int argc, char **argv) {
+  if (argc != 1) {
+    printf("SCO route parameter must be specified.\n");
+    return 1;
+  }
+
+  uint8_t route = 0xFF;
+  if (!strcmp(argv[0], "pcm"))
+    route = 0;
+  else if (!strcmp(argv[0], "i2s"))
+    route = 3;
+  else if (!strcmp(argv[0], "uart"))
+    route = 1;
+
+  if (route == 0xFF) {
+    printf("Invalid SCO route specified: %s\n", argv[0]);
+    return 2;
+  }
+
+  uint8_t packet[] = { 0x1C, 0xFC, 0x05, 0x00, 0x02, 0x00, 0x00, 0x00 };
+  packet[3] = route;
+
+  return !write_hci_command(HCI_PACKET_COMMAND, packet, ARRAY_SIZE(packet));
+}
+
+int main(int argc, char **argv) {
+  if (argc < 2) {
+    usage(argv[0]);
+    return -1;
+  }
+
+  const command_t *command = find_command(argv[1]);
+  if (!command) {
+    printf("Unrecognized command '%s'.\n", argv[1]);
+    return -2;
+  }
+
+  if (!command->handler) {
+    printf("Unhandled command '%s'.\n", argv[1]);
+    return -3;
+  }
+
+  return command->handler(argc - 2, &argv[2]);
+}
+
+static bool write_hci_command(hci_packet_t type, const void *packet, size_t length) {
+  int sock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
+  if (sock == INVALID_FD)
+    goto error;
+
+  struct sockaddr_in addr;
+  addr.sin_family = AF_INET;
+  addr.sin_addr.s_addr = htonl(0x7F000001);
+  addr.sin_port = htons(8873);
+  int ret;
+  OSI_NO_INTR(ret = connect(sock, (const struct sockaddr *)&addr,
+                            sizeof(addr)));
+  if (ret == -1)
+    goto error;
+
+  if (send(sock, &type, 1, 0) != 1)
+    goto error;
+
+  if (send(sock, &length, 2, 0) != 2)
+    goto error;
+
+  if (send(sock, packet, length, 0) != (ssize_t)length)
+    goto error;
+
+  close(sock);
+  return true;
+
+error:;
+  close(sock);
+  return false;
+}
+
+static const command_t *find_command(const char *name) {
+  for (size_t i = 0; i < ARRAY_SIZE(commands); ++i)
+    if (!strcmp(commands[i].name, name))
+      return &commands[i];
+  return NULL;
+}
+
+static void usage(const char *name) {
+  printf("Usage: %s <command> [options]\n", name);
+  printf("Commands:\n");
+  for (size_t i = 0; i < ARRAY_SIZE(commands); ++i)
+    printf("  %s\n", commands[i].name);
+  printf("For detailed help on a command, run '%s help <command>'.\n", name);
+}
diff --git a/rtkbt/code/bt/tools/scripts/btsnooz.py b/rtkbt/code/bt/tools/scripts/btsnooz.py
new file mode 100755
index 0000000..6e0e112
--- /dev/null
+++ b/rtkbt/code/bt/tools/scripts/btsnooz.py
@@ -0,0 +1,167 @@
+#!/usr/bin/env python
+"""
+This script extracts btsnooz content from bugreports and generates
+a valid btsnoop log file which can be viewed using standard tools
+like Wireshark.
+
+btsnooz is a custom format designed to be included in bugreports.
+It can be described as:
+
+base64 {
+  file_header
+  deflate {
+    repeated {
+      record_header
+      record_data
+    }
+  }
+}
+
+where the file_header and record_header are modified versions of
+the btsnoop headers.
+"""
+
+
+import base64
+import fileinput
+import struct
+import sys
+import zlib
+
+
+# Enumeration of the values the 'type' field can take in a btsnooz
+# header. These values come from the Bluetooth stack's internal
+# representation of packet types.
+TYPE_IN_EVT = 0x10
+TYPE_IN_ACL = 0x11
+TYPE_IN_SCO = 0x12
+TYPE_OUT_CMD = 0x20
+TYPE_OUT_ACL = 0x21
+TYPE_OUT_SCO = 0x22
+
+
+def type_to_direction(type):
+  """
+  Returns the inbound/outbound direction of a packet given its type.
+  0 = sent packet
+  1 = received packet
+  """
+  if type in [TYPE_IN_EVT, TYPE_IN_ACL, TYPE_IN_SCO]:
+    return 1
+  return 0
+
+
+def type_to_hci(type):
+  """
+  Returns the HCI type of a packet given its btsnooz type.
+  """
+  if type == TYPE_OUT_CMD:
+    return '\x01'
+  if type == TYPE_IN_ACL or type == TYPE_OUT_ACL:
+    return '\x02'
+  if type == TYPE_IN_SCO or type == TYPE_OUT_SCO:
+    return '\x03'
+  if type == TYPE_IN_EVT:
+    return '\x04'
+
+
+def decode_snooz(snooz):
+  """
+  Decodes all known versions of a btsnooz file into a btsnoop file.
+  """
+  version, last_timestamp_ms = struct.unpack_from('=bQ', snooz)
+
+  if version != 1 and version != 2:
+    sys.stderr.write('Unsupported btsnooz version: %s\n' % version)
+    exit(1)
+
+  # Oddly, the file header (9 bytes) is not compressed, but the rest is.
+  decompressed = zlib.decompress(snooz[9:])
+
+  sys.stdout.write('btsnoop\x00\x00\x00\x00\x01\x00\x00\x03\xea')
+
+  if version == 1:
+    decode_snooz_v1(decompressed, last_timestamp_ms)
+  elif version == 2:
+    decode_snooz_v2(decompressed, last_timestamp_ms)
+
+
+def decode_snooz_v1(decompressed, last_timestamp_ms):
+  """
+  Decodes btsnooz v1 files into a btsnoop file.
+  """
+  # An unfortunate consequence of the file format design: we have to do a
+  # pass of the entire file to determine the timestamp of the first packet.
+  first_timestamp_ms = last_timestamp_ms + 0x00dcddb30f2f8000
+  offset = 0
+  while offset < len(decompressed):
+    length, delta_time_ms, type = struct.unpack_from('=HIb', decompressed, offset)
+    offset += 7 + length - 1
+    first_timestamp_ms -= delta_time_ms
+
+  # Second pass does the actual writing out to stdout.
+  offset = 0
+  while offset < len(decompressed):
+    length, delta_time_ms, type = struct.unpack_from('=HIb', decompressed, offset)
+    first_timestamp_ms += delta_time_ms
+    offset += 7
+    sys.stdout.write(struct.pack('>II', length, length))
+    sys.stdout.write(struct.pack('>II', type_to_direction(type), 0))
+    sys.stdout.write(struct.pack('>II', (first_timestamp_ms >> 32), (first_timestamp_ms & 0xFFFFFFFF)))
+    sys.stdout.write(type_to_hci(type))
+    sys.stdout.write(decompressed[offset : offset + length - 1])
+    offset += length - 1
+
+
+def decode_snooz_v2(decompressed, last_timestamp_ms):
+  """
+  Decodes btsnooz v2 files into a btsnoop file.
+  """
+  # An unfortunate consequence of the file format design: we have to do a
+  # pass of the entire file to determine the timestamp of the first packet.
+  first_timestamp_ms = last_timestamp_ms + 0x00dcddb30f2f8000
+  offset = 0
+  while offset < len(decompressed):
+    length, packet_length, delta_time_ms, snooz_type = struct.unpack_from('=HHIb', decompressed, offset)
+    offset += 9 + length - 1
+    first_timestamp_ms -= delta_time_ms
+
+  # Second pass does the actual writing out to stdout.
+  offset = 0
+  while offset < len(decompressed):
+    length, packet_length, delta_time_ms, snooz_type = struct.unpack_from('=HHIb', decompressed, offset)
+    first_timestamp_ms += delta_time_ms
+    offset += 9
+    sys.stdout.write(struct.pack('>II', packet_length, length))
+    sys.stdout.write(struct.pack('>II', type_to_direction(snooz_type), 0))
+    sys.stdout.write(struct.pack('>II', (first_timestamp_ms >> 32), (first_timestamp_ms & 0xFFFFFFFF)))
+    sys.stdout.write(type_to_hci(snooz_type))
+    sys.stdout.write(decompressed[offset : offset + length - 1])
+    offset += length - 1
+
+
+def main():
+  if len(sys.argv) > 2:
+    sys.stderr.write('Usage: %s [bugreport]\n' % sys.argv[0])
+    exit(1)
+
+  iterator = fileinput.input()
+  found = False
+  base64_string = ""
+  for line in iterator:
+    if found:
+      if line.find('--- END:BTSNOOP_LOG_SUMMARY') != -1:
+        decode_snooz(base64.standard_b64decode(base64_string))
+        sys.exit(0)
+      base64_string += line.strip()
+
+    if line.find('--- BEGIN:BTSNOOP_LOG_SUMMARY') != -1:
+      found = True
+
+  if not found:
+    sys.stderr.write('No btsnooz section found in bugreport.\n')
+    sys.exit(1)
+
+
+if __name__ == '__main__':
+  main()
diff --git a/rtkbt/code/bt/tools/scripts/change_types.sh b/rtkbt/code/bt/tools/scripts/change_types.sh
new file mode 100755
index 0000000..f9b7009
--- /dev/null
+++ b/rtkbt/code/bt/tools/scripts/change_types.sh
@@ -0,0 +1,77 @@
+#!/bin/bash
+
+# This script will recursively search all |FILES| from the current
+# directory and replace all |TYPES| according to the list below.
+
+# NOTE 1:
+# If this script is run from .../system/bt (as it's intended to be),
+# please edit stack/include/bt_types.h next and remove the typedef's
+# near the top and restore the definitions of TRUE and FALSE. These
+# are still used in the vnd_* files and device specific repositories.
+
+# NOTE 2:
+# The list of files to be modified also includes "*.patch", which means
+# this script can be used to help cherry-picking changes from older
+# branches. Follow this workflow outline:
+#  1. git format-patch [-1] <your sha1>
+#  2. Run change_type script on patch[es]
+#  3. git apply / git am
+
+
+# Regular expression matching the file name
+FILES="\.h$|\.c$|\.cpp$|\.cc$|\.patch$"
+
+# Search/replace terms, separated by ":"
+TYPES=(
+  "UINT8:uint8_t"
+  "UINT16:uint16_t"
+  "UINT32:uint32_t"
+  "UINT64:uint64_t"
+  "INT8:int8_t"
+  "INT16:int16_t"
+  "INT32:int32_t"
+  "INT64:int64_t"
+  "BOOLEAN:bool"
+  "TRUE:true"
+  "FALSE:false"
+  "__FUNCTION__:__func__"
+)
+
+function process_file
+{
+  echo -n "Processing file $1 "
+
+  for tt in "${TYPES[@]}" ;
+  do
+    before=${tt%%:*}
+    after=${tt#*:}
+
+    echo -n "."
+    sed -i -e "s/\b${before}\b/${after}/g" "$1"
+  done
+  echo
+}
+
+function process_files
+{
+  until [ -z "$1" ]
+  do
+    process_file "$1"
+    shift
+  done
+}
+
+
+# Let's do this ...
+process_files `find ./ | grep -E "${FILES}"`
+
+# All done ...
+echo
+echo "All done."
+
+# Try to be helpful ...
+PWD=`pwd`
+if [[ "${PWD}" == */system/bt ]]
+then
+  echo "Please edit ${PWD}/stack/include/bt_types.h next."
+fi
diff --git a/rtkbt/code/bt/udrv/BUILD.gn b/rtkbt/code/bt/udrv/BUILD.gn
new file mode 100755
index 0000000..90c84b5
--- /dev/null
+++ b/rtkbt/code/bt/udrv/BUILD.gn
@@ -0,0 +1,31 @@
+#
+#  Copyright (C) 2015 Google, Inc.
+#
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at:
+#
+#  http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+#
+
+source_set("udrv") {
+  sources = [
+    "ulinux/uipc.c",
+  ]
+
+  include_dirs = [
+    "include",
+    "uipc",
+    "//",
+    "//audio_a2dp_hw",
+    "//include",
+    "//stack/include",
+    "//utils/include",
+  ]
+}
diff --git a/rtkbt/code/bt/udrv/include/uipc.h b/rtkbt/code/bt/udrv/include/uipc.h
new file mode 100755
index 0000000..e48a3e8
--- /dev/null
+++ b/rtkbt/code/bt/udrv/include/uipc.h
@@ -0,0 +1,140 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2007-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+#ifndef UIPC_H
+#define UIPC_H
+
+#define UIPC_CH_ID_AV_CTRL  0
+#define UIPC_CH_ID_AV_AUDIO 1
+#ifdef BLUETOOTH_RTK_API
+#define UIPC_CH_ID_RTKBT_CHANNEL_1 2
+#define UIPC_CH_ID_RTKBT_CHANNEL_2 3
+#define UIPC_CH_ID_RTKBT_CHANNEL_3 4
+#define UIPC_CH_ID_RTKBT_CHANNEL_4 5
+#define UIPC_CH_ID_RTKBT_CHANNEL_5 6
+#define UIPC_CH_ID_RTKBT_CHANNEL_6 7
+#define UIPC_CH_NUM         8
+#define UIPC_CH_ID_ALL      9   /* used to address all the ch id at once */
+#else
+#define UIPC_CH_NUM         2
+
+#define UIPC_CH_ID_ALL      3   /* used to address all the ch id at once */
+#endif
+
+
+#define DEFAULT_READ_POLL_TMO_MS 100
+
+typedef UINT8 tUIPC_CH_ID;
+
+/* Events generated */
+typedef enum {
+    UIPC_OPEN_EVT           = 0x0001,
+    UIPC_CLOSE_EVT          = 0x0002,
+    UIPC_RX_DATA_EVT        = 0x0004,
+    UIPC_RX_DATA_READY_EVT  = 0x0008,
+    UIPC_TX_DATA_READY_EVT  = 0x0010
+} tUIPC_EVENT;
+
+/*
+ * UIPC IOCTL Requests
+ */
+
+#define UIPC_REQ_RX_FLUSH               1
+#define UIPC_REG_CBACK                  2
+#define UIPC_REG_REMOVE_ACTIVE_READSET  3
+#define UIPC_SET_READ_POLL_TMO          4
+#ifdef BLUETOOTH_RTK_API
+#define UIPC_SET_SNDBUFSIZE  5
+#endif
+
+typedef void (tUIPC_RCV_CBACK)(tUIPC_CH_ID ch_id, tUIPC_EVENT event); /* points to BT_HDR which describes event type and length of data; len contains the number of bytes of entire message (sizeof(BT_HDR) + offset + size of data) */
+
+const char* dump_uipc_event(tUIPC_EVENT event);
+
+/*******************************************************************************
+**
+** Function         UIPC_Init
+**
+** Description      Initialize UIPC module
+**
+** Returns          void
+**
+*******************************************************************************/
+void UIPC_Init(void *);
+
+/*******************************************************************************
+**
+** Function         UIPC_Open
+**
+** Description      Open UIPC interface
+**
+** Returns          void
+**
+*******************************************************************************/
+BOOLEAN UIPC_Open(tUIPC_CH_ID ch_id, tUIPC_RCV_CBACK *p_cback);
+
+/*******************************************************************************
+**
+** Function         UIPC_Close
+**
+** Description      Close UIPC interface
+**
+** Returns          void
+**
+*******************************************************************************/
+void UIPC_Close(tUIPC_CH_ID ch_id);
+
+/*******************************************************************************
+**
+** Function         UIPC_Send
+**
+** Description      Called to transmit a message over UIPC.
+**
+** Returns          void
+**
+*******************************************************************************/
+BOOLEAN UIPC_Send(tUIPC_CH_ID ch_id, UINT16 msg_evt, UINT8 *p_buf, UINT16 msglen);
+#ifdef BLUETOOTH_RTK_API
+INT32 UIPC_Send_noblock(tUIPC_CH_ID ch_id, UINT16 msg_evt, UINT8 *p_buf, UINT16 msglen);
+#endif
+
+/*******************************************************************************
+**
+** Function         UIPC_Read
+**
+** Description      Called to read a message from UIPC.
+**
+** Returns          void
+**
+*******************************************************************************/
+UINT32 UIPC_Read(tUIPC_CH_ID ch_id, UINT16 *p_msg_evt, UINT8 *p_buf, UINT32 len);
+#ifdef BLUETOOTH_RTK_API
+extern INT32 UIPC_Read_noblock(tUIPC_CH_ID ch_id, UINT16 *p_msg_evt, UINT8 *p_buf, UINT32 len);
+#endif
+
+/*******************************************************************************
+**
+** Function         UIPC_Ioctl
+**
+** Description      Called to control UIPC.
+**
+** Returns          void
+**
+*******************************************************************************/
+BOOLEAN UIPC_Ioctl(tUIPC_CH_ID ch_id, UINT32 request, void *param);
+
+#endif  /* UIPC_H */
diff --git a/rtkbt/code/bt/udrv/ulinux/uipc.c b/rtkbt/code/bt/udrv/ulinux/uipc.c
new file mode 100755
index 0000000..c3d7fae
--- /dev/null
+++ b/rtkbt/code/bt/udrv/ulinux/uipc.c
@@ -0,0 +1,993 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/*****************************************************************************
+ *
+ *  Filename:      uipc.c
+ *
+ *  Description:   UIPC implementation for bluedroid
+ *
+ *****************************************************************************/
+
+#include <errno.h>
+#include <fcntl.h>
+#include <pthread.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/mman.h>
+#include <sys/poll.h>
+#include <sys/prctl.h>
+#include <sys/select.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/un.h>
+#include <unistd.h>
+
+#include "audio_a2dp_hw.h"
+#include "bt_types.h"
+#include "bt_utils.h"
+#include "bt_common.h"
+#include "osi/include/osi.h"
+#include "osi/include/socket_utils/sockets.h"
+#include "uipc.h"
+#ifdef BLUETOOTH_RTK_API
+#include "rtkbt_api.h"
+volatile BOOLEAN uipc_inited = FALSE;
+extern char * rtkbt_api_GetUipcPath(int ch_id);
+#endif
+/*****************************************************************************
+**  Constants & Macros
+******************************************************************************/
+
+#define PCM_FILENAME "/data/test.pcm"
+
+#define MAX(a,b) ((a)>(b)?(a):(b))
+
+#define CASE_RETURN_STR(const) case const: return #const;
+
+#define UIPC_DISCONNECTED (-1)
+
+#define UIPC_LOCK() /*BTIF_TRACE_EVENT(" %s lock", __FUNCTION__);*/ pthread_mutex_lock(&uipc_main.mutex);
+#define UIPC_UNLOCK() /*BTIF_TRACE_EVENT("%s unlock", __FUNCTION__);*/ pthread_mutex_unlock(&uipc_main.mutex);
+
+#define SAFE_FD_ISSET(fd, set) (((fd) == -1) ? FALSE : FD_ISSET((fd), (set)))
+
+#define UIPC_FLUSH_BUFFER_SIZE 1024
+
+/*****************************************************************************
+**  Local type definitions
+******************************************************************************/
+
+typedef enum {
+    UIPC_TASK_FLAG_DISCONNECT_CHAN = 0x1,
+} tUIPC_TASK_FLAGS;
+
+typedef struct {
+    int srvfd;
+    int fd;
+    int read_poll_tmo_ms;
+    int task_evt_flags;   /* event flags pending to be processed in read task */
+    tUIPC_EVENT cond_flags;
+    pthread_mutex_t cond_mutex;
+    pthread_cond_t  cond;
+    tUIPC_RCV_CBACK *cback;
+} tUIPC_CHAN;
+
+typedef struct {
+    pthread_t tid; /* main thread id */
+    int running;
+    pthread_mutex_t mutex;
+
+    fd_set active_set;
+    fd_set read_set;
+    int max_fd;
+    int signal_fds[2];
+
+    tUIPC_CHAN ch[UIPC_CH_NUM];
+} tUIPC_MAIN;
+
+
+/*****************************************************************************
+**  Static variables
+******************************************************************************/
+
+static tUIPC_MAIN uipc_main;
+
+
+/*****************************************************************************
+**  Static functions
+******************************************************************************/
+
+static int uipc_close_ch_locked(tUIPC_CH_ID ch_id);
+
+/*****************************************************************************
+**  Externs
+******************************************************************************/
+
+
+/*****************************************************************************
+**   Helper functions
+******************************************************************************/
+
+
+const char* dump_uipc_event(tUIPC_EVENT event)
+{
+    switch(event)
+    {
+        CASE_RETURN_STR(UIPC_OPEN_EVT)
+        CASE_RETURN_STR(UIPC_CLOSE_EVT)
+        CASE_RETURN_STR(UIPC_RX_DATA_EVT)
+        CASE_RETURN_STR(UIPC_RX_DATA_READY_EVT)
+        CASE_RETURN_STR(UIPC_TX_DATA_READY_EVT)
+        default:
+            return "UNKNOWN MSG ID";
+    }
+}
+
+/*****************************************************************************
+**   socket helper functions
+*****************************************************************************/
+
+static inline int create_server_socket(const char* name)
+{
+    int s = socket(AF_LOCAL, SOCK_STREAM, 0);
+    if (s < 0)
+        return -1;
+
+    BTIF_TRACE_EVENT("create_server_socket %s", name);
+
+    if(osi_socket_local_server_bind(s, name, ANDROID_SOCKET_NAMESPACE_ABSTRACT) < 0)
+    {
+        BTIF_TRACE_EVENT("socket failed to create (%s)", strerror(errno));
+        close(s);
+        return -1;
+    }
+
+    if(listen(s, 5) < 0)
+    {
+        BTIF_TRACE_EVENT("listen failed", strerror(errno));
+        close(s);
+        return -1;
+    }
+
+    BTIF_TRACE_EVENT("created socket fd %d", s);
+    return s;
+}
+
+static int accept_server_socket(int sfd)
+{
+    struct sockaddr_un remote;
+    struct pollfd pfd;
+    int fd;
+    socklen_t len = sizeof(struct sockaddr_un);
+
+    BTIF_TRACE_EVENT("accept fd %d", sfd);
+
+    /* make sure there is data to process */
+    pfd.fd = sfd;
+    pfd.events = POLLIN;
+
+    int poll_ret;
+    OSI_NO_INTR(poll_ret = poll(&pfd, 1, 0));
+    if (poll_ret == 0)
+    {
+        BTIF_TRACE_WARNING("accept poll timeout");
+        return -1;
+    }
+
+    //BTIF_TRACE_EVENT("poll revents 0x%x", pfd.revents);
+
+    OSI_NO_INTR(fd = accept(sfd, (struct sockaddr *)&remote, &len));
+    if (fd == -1) {
+         BTIF_TRACE_ERROR("sock accept failed (%s)", strerror(errno));
+         return -1;
+    }
+
+    // match socket buffer size option with client
+    const int size = AUDIO_STREAM_OUTPUT_BUFFER_SZ;
+    int ret = setsockopt(fd, SOL_SOCKET, SO_RCVBUF, (char*)&size, (int)sizeof(size));
+    if (ret < 0) {
+        BTIF_TRACE_ERROR("setsockopt failed (%s)", strerror(errno));
+    }
+
+    //BTIF_TRACE_EVENT("new fd %d", fd);
+
+    return fd;
+}
+
+/*****************************************************************************
+**
+**   uipc helper functions
+**
+*****************************************************************************/
+
+static int uipc_main_init(void)
+{
+    int i;
+    pthread_mutexattr_t attr;
+    pthread_mutexattr_init(&attr);
+    pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
+    pthread_mutex_init(&uipc_main.mutex, &attr);
+
+    BTIF_TRACE_EVENT("### uipc_main_init ###");
+
+    /* setup interrupt socket pair */
+    if (socketpair(AF_UNIX, SOCK_STREAM, 0, uipc_main.signal_fds) < 0)
+    {
+        return -1;
+    }
+
+    FD_SET(uipc_main.signal_fds[0], &uipc_main.active_set);
+    uipc_main.max_fd = MAX(uipc_main.max_fd, uipc_main.signal_fds[0]);
+
+    for (i=0; i< UIPC_CH_NUM; i++)
+    {
+        tUIPC_CHAN *p = &uipc_main.ch[i];
+        p->srvfd = UIPC_DISCONNECTED;
+        p->fd = UIPC_DISCONNECTED;
+        p->task_evt_flags = 0;
+        pthread_cond_init(&p->cond, NULL);
+        pthread_mutex_init(&p->cond_mutex, NULL);
+        p->cback = NULL;
+    }
+
+    return 0;
+}
+
+void uipc_main_cleanup(void)
+{
+    int i;
+
+    BTIF_TRACE_EVENT("uipc_main_cleanup");
+
+    close(uipc_main.signal_fds[0]);
+    close(uipc_main.signal_fds[1]);
+
+    /* close any open channels */
+    for (i=0; i<UIPC_CH_NUM; i++)
+        uipc_close_ch_locked(i);
+}
+
+
+
+/* check pending events in read task */
+static void uipc_check_task_flags_locked(void)
+{
+    int i;
+
+    for (i=0; i<UIPC_CH_NUM; i++)
+    {
+        //BTIF_TRACE_EVENT("CHECK TASK FLAGS %x %x",  uipc_main.ch[i].task_evt_flags, UIPC_TASK_FLAG_DISCONNECT_CHAN);
+        if (uipc_main.ch[i].task_evt_flags & UIPC_TASK_FLAG_DISCONNECT_CHAN)
+        {
+            uipc_main.ch[i].task_evt_flags &= ~UIPC_TASK_FLAG_DISCONNECT_CHAN;
+            uipc_close_ch_locked(i);
+        }
+
+        /* add here */
+
+    }
+}
+
+
+static int uipc_check_fd_locked(tUIPC_CH_ID ch_id)
+{
+    if (ch_id >= UIPC_CH_NUM)
+        return -1;
+
+    //BTIF_TRACE_EVENT("CHECK SRVFD %d (ch %d)", uipc_main.ch[ch_id].srvfd, ch_id);
+
+    if (SAFE_FD_ISSET(uipc_main.ch[ch_id].srvfd, &uipc_main.read_set))
+    {
+        BTIF_TRACE_EVENT("INCOMING CONNECTION ON CH %d", ch_id);
+
+        uipc_main.ch[ch_id].fd = accept_server_socket(uipc_main.ch[ch_id].srvfd);
+
+        BTIF_TRACE_EVENT("NEW FD %d", uipc_main.ch[ch_id].fd);
+
+        if ((uipc_main.ch[ch_id].fd > 0) && uipc_main.ch[ch_id].cback)
+        {
+            /*  if we have a callback we should add this fd to the active set
+                and notify user with callback event */
+            BTIF_TRACE_EVENT("ADD FD %d TO ACTIVE SET", uipc_main.ch[ch_id].fd);
+            FD_SET(uipc_main.ch[ch_id].fd, &uipc_main.active_set);
+            uipc_main.max_fd = MAX(uipc_main.max_fd, uipc_main.ch[ch_id].fd);
+        }
+
+        if (uipc_main.ch[ch_id].fd < 0)
+        {
+            BTIF_TRACE_ERROR("FAILED TO ACCEPT CH %d (%s)", ch_id, strerror(errno));
+            return -1;
+        }
+
+        if (uipc_main.ch[ch_id].cback)
+            uipc_main.ch[ch_id].cback(ch_id, UIPC_OPEN_EVT);
+    }
+
+    //BTIF_TRACE_EVENT("CHECK FD %d (ch %d)", uipc_main.ch[ch_id].fd, ch_id);
+
+    if (SAFE_FD_ISSET(uipc_main.ch[ch_id].fd, &uipc_main.read_set))
+    {
+        //BTIF_TRACE_EVENT("INCOMING DATA ON CH %d", ch_id);
+
+        if (uipc_main.ch[ch_id].cback)
+            uipc_main.ch[ch_id].cback(ch_id, UIPC_RX_DATA_READY_EVT);
+    }
+    return 0;
+}
+
+static void uipc_check_interrupt_locked(void)
+{
+    if (SAFE_FD_ISSET(uipc_main.signal_fds[0], &uipc_main.read_set))
+    {
+        char sig_recv = 0;
+        OSI_NO_INTR(recv(uipc_main.signal_fds[0], &sig_recv, sizeof(sig_recv),
+                         MSG_WAITALL));
+    }
+}
+
+static inline void uipc_wakeup_locked(void)
+{
+    char sig_on = 1;
+    BTIF_TRACE_EVENT("UIPC SEND WAKE UP");
+
+    OSI_NO_INTR(send(uipc_main.signal_fds[1], &sig_on, sizeof(sig_on), 0));
+}
+
+static int uipc_setup_server_locked(tUIPC_CH_ID ch_id, char *name, tUIPC_RCV_CBACK *cback)
+{
+    int fd;
+
+    BTIF_TRACE_EVENT("SETUP CHANNEL SERVER %d", ch_id);
+
+    if (ch_id >= UIPC_CH_NUM)
+        return -1;
+
+    UIPC_LOCK();
+
+    fd = create_server_socket(name);
+
+    if (fd < 0)
+    {
+        BTIF_TRACE_ERROR("failed to setup %s", name, strerror(errno));
+        UIPC_UNLOCK();
+         return -1;
+    }
+
+    BTIF_TRACE_EVENT("ADD SERVER FD TO ACTIVE SET %d", fd);
+    FD_SET(fd, &uipc_main.active_set);
+    uipc_main.max_fd = MAX(uipc_main.max_fd, fd);
+
+    uipc_main.ch[ch_id].srvfd = fd;
+    uipc_main.ch[ch_id].cback = cback;
+    uipc_main.ch[ch_id].read_poll_tmo_ms = DEFAULT_READ_POLL_TMO_MS;
+
+    /* trigger main thread to update read set */
+    uipc_wakeup_locked();
+
+    UIPC_UNLOCK();
+
+    return 0;
+}
+
+static void uipc_flush_ch_locked(tUIPC_CH_ID ch_id)
+{
+    char buf[UIPC_FLUSH_BUFFER_SIZE];
+    struct pollfd pfd;
+
+    pfd.events = POLLIN;
+    pfd.fd = uipc_main.ch[ch_id].fd;
+
+    if (uipc_main.ch[ch_id].fd == UIPC_DISCONNECTED)
+    {
+        BTIF_TRACE_EVENT("%s() - fd disconnected. Exiting", __FUNCTION__);
+        return;
+    }
+
+    while (1)
+    {
+        int ret;
+        OSI_NO_INTR(ret = poll(&pfd, 1, 1));
+        if (ret == 0) {
+            BTIF_TRACE_VERBOSE("%s(): poll() timeout - nothing to do. Exiting",
+                               __func__);
+            return;
+        }
+        if (ret < 0) {
+            BTIF_TRACE_WARNING("%s() - poll() failed: return %d errno %d (%s). Exiting",
+                               __func__, ret, errno, strerror(errno));
+            return;
+        }
+        BTIF_TRACE_VERBOSE("%s() - polling fd %d, revents: 0x%x, ret %d",
+                __FUNCTION__, pfd.fd, pfd.revents, ret);
+        if (pfd.revents & (POLLERR|POLLHUP))
+        {
+            BTIF_TRACE_WARNING("%s() - POLLERR or POLLHUP. Exiting", __FUNCTION__);
+            return;
+        }
+
+        /* read sufficiently large buffer to ensure flush empties socket faster than
+           it is getting refilled */
+        read(pfd.fd, &buf, UIPC_FLUSH_BUFFER_SIZE);
+    }
+}
+
+
+static void uipc_flush_locked(tUIPC_CH_ID ch_id)
+{
+    if (ch_id >= UIPC_CH_NUM)
+        return;
+
+    switch(ch_id)
+    {
+        case UIPC_CH_ID_AV_CTRL:
+            uipc_flush_ch_locked(UIPC_CH_ID_AV_CTRL);
+            break;
+
+        case UIPC_CH_ID_AV_AUDIO:
+            uipc_flush_ch_locked(UIPC_CH_ID_AV_AUDIO);
+            break;
+	#ifdef BLUETOOTH_RTK_API
+        case UIPC_CH_ID_RTKBT_CHANNEL_1:
+        case UIPC_CH_ID_RTKBT_CHANNEL_2:
+        case UIPC_CH_ID_RTKBT_CHANNEL_3:
+        case UIPC_CH_ID_RTKBT_CHANNEL_4:
+        case UIPC_CH_ID_RTKBT_CHANNEL_5:
+        case UIPC_CH_ID_RTKBT_CHANNEL_6:
+            uipc_flush_ch_locked(ch_id);
+            break;
+    #endif
+    }
+}
+
+
+static int uipc_close_ch_locked(tUIPC_CH_ID ch_id)
+{
+    int wakeup = 0;
+
+    BTIF_TRACE_EVENT("CLOSE CHANNEL %d", ch_id);
+
+    if (ch_id >= UIPC_CH_NUM)
+        return -1;
+
+    if (uipc_main.ch[ch_id].srvfd != UIPC_DISCONNECTED)
+    {
+        BTIF_TRACE_EVENT("CLOSE SERVER (FD %d)", uipc_main.ch[ch_id].srvfd);
+        close(uipc_main.ch[ch_id].srvfd);
+        FD_CLR(uipc_main.ch[ch_id].srvfd, &uipc_main.active_set);
+        uipc_main.ch[ch_id].srvfd = UIPC_DISCONNECTED;
+        wakeup = 1;
+    }
+
+    if (uipc_main.ch[ch_id].fd != UIPC_DISCONNECTED)
+    {
+        BTIF_TRACE_EVENT("CLOSE CONNECTION (FD %d)", uipc_main.ch[ch_id].fd);
+        close(uipc_main.ch[ch_id].fd);
+        FD_CLR(uipc_main.ch[ch_id].fd, &uipc_main.active_set);
+        uipc_main.ch[ch_id].fd = UIPC_DISCONNECTED;
+        wakeup = 1;
+    }
+
+    /* notify this connection is closed */
+    if (uipc_main.ch[ch_id].cback)
+        uipc_main.ch[ch_id].cback(ch_id, UIPC_CLOSE_EVT);
+
+    /* trigger main thread update if something was updated */
+    if (wakeup)
+        uipc_wakeup_locked();
+
+    return 0;
+}
+
+
+void uipc_close_locked(tUIPC_CH_ID ch_id)
+{
+    if (uipc_main.ch[ch_id].srvfd == UIPC_DISCONNECTED)
+    {
+        BTIF_TRACE_EVENT("CHANNEL %d ALREADY CLOSED", ch_id);
+        return;
+    }
+
+    /* schedule close on this channel */
+    uipc_main.ch[ch_id].task_evt_flags |= UIPC_TASK_FLAG_DISCONNECT_CHAN;
+    uipc_wakeup_locked();
+}
+
+
+static void uipc_read_task(void *arg)
+{
+    int ch_id;
+    int result;
+    UNUSED(arg);
+
+    prctl(PR_SET_NAME, (unsigned long)"uipc-main", 0, 0, 0);
+
+    raise_priority_a2dp(TASK_UIPC_READ);
+
+    while (uipc_main.running)
+    {
+        uipc_main.read_set = uipc_main.active_set;
+
+        result = select(uipc_main.max_fd+1, &uipc_main.read_set, NULL, NULL, NULL);
+
+        if (result == 0) {
+            BTIF_TRACE_EVENT("select timeout");
+            continue;
+        }
+        if (result < 0) {
+            if (errno != EINTR)
+                BTIF_TRACE_EVENT("select failed %s", strerror(errno));
+            continue;
+        }
+
+        UIPC_LOCK();
+
+        /* clear any wakeup interrupt */
+        uipc_check_interrupt_locked();
+
+        /* check pending task events */
+        uipc_check_task_flags_locked();
+
+        /* make sure we service audio channel first */
+        uipc_check_fd_locked(UIPC_CH_ID_AV_AUDIO);
+
+        /* check for other connections */
+        for (ch_id = 0; ch_id < UIPC_CH_NUM; ch_id++)
+        {
+            if (ch_id != UIPC_CH_ID_AV_AUDIO)
+                uipc_check_fd_locked(ch_id);
+        }
+
+        UIPC_UNLOCK();
+    }
+
+    BTIF_TRACE_EVENT("UIPC READ THREAD EXITING");
+
+    uipc_main_cleanup();
+
+    uipc_main.tid = 0;
+
+    BTIF_TRACE_EVENT("UIPC READ THREAD DONE");
+}
+
+
+int uipc_start_main_server_thread(void)
+{
+    uipc_main.running = 1;
+
+    if (pthread_create(&uipc_main.tid, (const pthread_attr_t *) NULL, (void*)uipc_read_task, NULL) < 0)
+    {
+        BTIF_TRACE_ERROR("uipc_thread_create pthread_create failed:%d", errno);
+        return -1;
+    }
+
+    return 0;
+}
+
+/* blocking call */
+void uipc_stop_main_server_thread(void)
+{
+    /* request shutdown of read thread */
+    UIPC_LOCK();
+    uipc_main.running = 0;
+    uipc_wakeup_locked();
+    UIPC_UNLOCK();
+
+    /* wait until read thread is fully terminated */
+    /* tid might hold pointer value where it's value
+       is negative vaule with singed bit is set, so
+       corrected the logic to check zero or non zero */
+    if (uipc_main.tid)
+        pthread_join(uipc_main.tid, NULL);
+}
+
+/*******************************************************************************
+ **
+ ** Function         UIPC_Init
+ **
+ ** Description      Initialize UIPC module
+ **
+ ** Returns          void
+ **
+ *******************************************************************************/
+
+void UIPC_Init(void *p_data)
+{
+    UNUSED(p_data);
+
+    BTIF_TRACE_DEBUG("UIPC_Init");
+#ifdef BLUETOOTH_RTK_API
+    if (uipc_inited == TRUE)
+    {
+        return;
+    }
+    uipc_inited = TRUE;
+#endif
+
+    memset(&uipc_main, 0, sizeof(tUIPC_MAIN));
+
+    uipc_main_init();
+
+    uipc_start_main_server_thread();
+}
+
+/*******************************************************************************
+ **
+ ** Function         UIPC_Open
+ **
+ ** Description      Open UIPC interface
+ **
+ ** Returns          TRUE in case of success, FALSE in case of failure.
+ **
+ *******************************************************************************/
+BOOLEAN UIPC_Open(tUIPC_CH_ID ch_id, tUIPC_RCV_CBACK *p_cback)
+{
+    BTIF_TRACE_DEBUG("UIPC_Open : ch_id %d, p_cback %x", ch_id, p_cback);
+
+    UIPC_LOCK();
+
+    if (ch_id >= UIPC_CH_NUM)
+    {
+        UIPC_UNLOCK();
+        return FALSE;
+    }
+
+    if (uipc_main.ch[ch_id].srvfd != UIPC_DISCONNECTED)
+    {
+        BTIF_TRACE_EVENT("CHANNEL %d ALREADY OPEN", ch_id);
+#ifdef BLUETOOTH_RTK_API
+        if(uipc_main.ch[ch_id].fd > 0)
+        {
+            BTIF_TRACE_EVENT("the client socket is not disconnect");
+        }
+#endif
+        UIPC_UNLOCK();
+        return 0;
+    }
+
+    switch(ch_id)
+    {
+        case UIPC_CH_ID_AV_CTRL:
+            uipc_setup_server_locked(ch_id, A2DP_CTRL_PATH, p_cback);
+            break;
+
+        case UIPC_CH_ID_AV_AUDIO:
+            uipc_setup_server_locked(ch_id, A2DP_DATA_PATH, p_cback);
+            break;
+#ifdef BLUETOOTH_RTK_API
+        case UIPC_CH_ID_RTKBT_CHANNEL_1:
+        case UIPC_CH_ID_RTKBT_CHANNEL_2:
+        case UIPC_CH_ID_RTKBT_CHANNEL_3:
+        case UIPC_CH_ID_RTKBT_CHANNEL_4:
+        case UIPC_CH_ID_RTKBT_CHANNEL_5:
+        case UIPC_CH_ID_RTKBT_CHANNEL_6:
+            uipc_setup_server_locked(ch_id, rtkbt_api_GetUipcPath(ch_id), p_cback);
+            break;
+#endif
+    }
+
+    UIPC_UNLOCK();
+
+    return TRUE;
+}
+
+/*******************************************************************************
+ **
+ ** Function         UIPC_Close
+ **
+ ** Description      Close UIPC interface
+ **
+ ** Returns          void
+ **
+ *******************************************************************************/
+
+void UIPC_Close(tUIPC_CH_ID ch_id)
+{
+    BTIF_TRACE_DEBUG("UIPC_Close : ch_id %d", ch_id);
+
+    /* special case handling uipc shutdown */
+    if (ch_id != UIPC_CH_ID_ALL)
+    {
+        UIPC_LOCK();
+        uipc_close_locked(ch_id);
+        UIPC_UNLOCK();
+    }
+    else
+    {
+#ifdef BLUETOOTH_RTK
+        int i;
+        for (i=0; i<UIPC_CH_NUM; i++)
+            uipc_close_ch_locked(i);
+#endif
+        BTIF_TRACE_DEBUG("UIPC_Close : waiting for shutdown to complete");
+        uipc_stop_main_server_thread();
+        BTIF_TRACE_DEBUG("UIPC_Close : shutdown complete");
+    }
+}
+
+/*******************************************************************************
+ **
+ ** Function         UIPC_Send
+ **
+ ** Description      Called to transmit a message over UIPC.
+ **
+ ** Returns          TRUE in case of success, FALSE in case of failure.
+ **
+ *******************************************************************************/
+BOOLEAN UIPC_Send(tUIPC_CH_ID ch_id, UINT16 msg_evt, UINT8 *p_buf,
+        UINT16 msglen)
+{
+    UNUSED(msg_evt);
+
+    BTIF_TRACE_DEBUG("UIPC_Send : ch_id:%d %d bytes", ch_id, msglen);
+
+    UIPC_LOCK();
+
+    ssize_t ret;
+    OSI_NO_INTR(ret = write(uipc_main.ch[ch_id].fd, p_buf, msglen));
+    if (ret < 0) {
+        BTIF_TRACE_ERROR("failed to write (%s)", strerror(errno));
+#ifdef BLUETOOTH_RTK_API
+        ret = errno;
+#endif
+    }
+
+    UIPC_UNLOCK();
+
+#ifdef BLUETOOTH_RTK_API
+    return ret;
+#else
+    return FALSE;
+#endif
+}
+#ifdef BLUETOOTH_RTK_API
+INT32 UIPC_Send_noblock(tUIPC_CH_ID ch_id, UINT16 msg_evt, UINT8 *p_buf, UINT16 msglen)
+{
+    INT32 res = 0;
+    struct pollfd pfd;
+    int fd = uipc_main.ch[ch_id].fd;
+
+    UIPC_LOCK();
+
+    pfd.fd = fd;
+    pfd.events = POLLOUT|POLLHUP;
+    if (poll(&pfd, 1, 0) == 0)
+    {
+        goto unlock;
+    }
+
+    if (pfd.revents & (POLLHUP|POLLNVAL) )
+    {
+        BTIF_TRACE_EVENT("poll : channel detached remotely");
+        uipc_close_locked(ch_id);
+        goto unlock;
+    }
+
+    res = send(uipc_main.ch[ch_id].fd, p_buf, msglen, MSG_DONTWAIT);
+    if (res < 0)
+    {
+        BTIF_TRACE_ERROR("failed to write (%s)", strerror(errno));
+    }
+
+unlock:
+    UIPC_UNLOCK();
+
+    return res;
+}
+#endif
+
+#ifdef BLUETOOTH_RTK_API
+INT32 UIPC_Read_noblock(tUIPC_CH_ID ch_id, UINT16 *p_msg_evt, UINT8 *p_buf, UINT32 len)
+{
+    int n_read = 0;
+    int fd = uipc_main.ch[ch_id].fd;
+    struct pollfd pfd;
+
+    if (ch_id >= UIPC_CH_NUM)
+    {
+        BTIF_TRACE_ERROR("UIPC_Read_noblock : invalid ch id %d", ch_id);
+        return 0;
+    }
+
+    if (fd == UIPC_DISCONNECTED)
+    {
+        BTIF_TRACE_ERROR("UIPC_Read_noblock : channel %d closed", ch_id);
+        return 0;
+    }
+
+    pfd.fd = fd;
+    pfd.events = POLLIN|POLLHUP;
+
+    if (poll(&pfd, 1, 0) == 0)
+    {
+        return 0;
+    }
+
+    if (pfd.revents & (POLLHUP|POLLNVAL) )
+    {
+        BTIF_TRACE_EVENT("poll : channel detached remotely");
+        UIPC_LOCK();
+        uipc_close_locked(ch_id);
+        UIPC_UNLOCK();
+        return 0;
+    }
+
+    n_read = recv(fd, p_buf, len, MSG_DONTWAIT|MSG_NOSIGNAL);
+
+    return n_read;
+}
+#endif
+
+/*******************************************************************************
+ **
+ ** Function         UIPC_Read
+ **
+ ** Description      Called to read a message from UIPC.
+ **
+ ** Returns          return the number of bytes read.
+ **
+ *******************************************************************************/
+
+UINT32 UIPC_Read(tUIPC_CH_ID ch_id, UINT16 *p_msg_evt, UINT8 *p_buf, UINT32 len)
+{
+    int n_read = 0;
+    int fd = uipc_main.ch[ch_id].fd;
+    struct pollfd pfd;
+    UNUSED(p_msg_evt);
+
+    if (ch_id >= UIPC_CH_NUM)
+    {
+        BTIF_TRACE_ERROR("UIPC_Read : invalid ch id %d", ch_id);
+        return 0;
+    }
+
+    if (fd == UIPC_DISCONNECTED)
+    {
+        BTIF_TRACE_ERROR("UIPC_Read : channel %d closed", ch_id);
+        return 0;
+    }
+
+    //BTIF_TRACE_DEBUG("UIPC_Read : ch_id %d, len %d, fd %d, polltmo %d", ch_id, len,
+    //        fd, uipc_main.ch[ch_id].read_poll_tmo_ms);
+
+    while (n_read < (int)len)
+    {
+        pfd.fd = fd;
+        pfd.events = POLLIN|POLLHUP;
+
+        /* make sure there is data prior to attempting read to avoid blocking
+           a read for more than poll timeout */
+
+        int poll_ret;
+        OSI_NO_INTR(poll_ret = poll(&pfd, 1,
+                                    uipc_main.ch[ch_id].read_poll_tmo_ms));
+        if (poll_ret == 0)
+        {
+            BTIF_TRACE_WARNING("poll timeout (%d ms)", uipc_main.ch[ch_id].read_poll_tmo_ms);
+            break;
+        }
+        if (poll_ret < 0) {
+            BTIF_TRACE_ERROR("%s(): poll() failed: return %d errno %d (%s)",
+                           __func__, poll_ret, errno, strerror(errno));
+            break;
+        }
+
+        //BTIF_TRACE_EVENT("poll revents %x", pfd.revents);
+
+        if (pfd.revents & (POLLHUP|POLLNVAL) )
+        {
+            BTIF_TRACE_WARNING("poll : channel detached remotely");
+            UIPC_LOCK();
+            uipc_close_locked(ch_id);
+            UIPC_UNLOCK();
+            return 0;
+        }
+
+        ssize_t n;
+        OSI_NO_INTR(n = recv(fd, p_buf+n_read, len-n_read, 0));
+
+        //BTIF_TRACE_EVENT("read %d bytes", n);
+
+        if (n == 0)
+        {
+            BTIF_TRACE_WARNING("UIPC_Read : channel detached remotely");
+            UIPC_LOCK();
+            uipc_close_locked(ch_id);
+            UIPC_UNLOCK();
+            return 0;
+        }
+
+        if (n < 0)
+        {
+            BTIF_TRACE_WARNING("UIPC_Read : read failed (%s)", strerror(errno));
+            return 0;
+        }
+
+        n_read+=n;
+
+    }
+
+    return n_read;
+}
+
+/*******************************************************************************
+**
+** Function         UIPC_Ioctl
+**
+** Description      Called to control UIPC.
+**
+** Returns          void
+**
+*******************************************************************************/
+
+extern BOOLEAN UIPC_Ioctl(tUIPC_CH_ID ch_id, UINT32 request, void *param)
+{
+    BTIF_TRACE_DEBUG("#### UIPC_Ioctl : ch_id %d, request %d ####", ch_id, request);
+
+    UIPC_LOCK();
+
+    switch(request)
+    {
+        case UIPC_REQ_RX_FLUSH:
+            uipc_flush_locked(ch_id);
+            break;
+
+        case UIPC_REG_CBACK:
+            //BTIF_TRACE_EVENT("register callback ch %d srvfd %d, fd %d", ch_id, uipc_main.ch[ch_id].srvfd, uipc_main.ch[ch_id].fd);
+            uipc_main.ch[ch_id].cback = (tUIPC_RCV_CBACK*)param;
+            break;
+
+        case UIPC_REG_REMOVE_ACTIVE_READSET:
+
+            /* user will read data directly and not use select loop */
+            if (uipc_main.ch[ch_id].fd != UIPC_DISCONNECTED)
+            {
+                /* remove this channel from active set */
+                FD_CLR(uipc_main.ch[ch_id].fd, &uipc_main.active_set);
+
+                /* refresh active set */
+                uipc_wakeup_locked();
+            }
+            break;
+
+        case UIPC_SET_READ_POLL_TMO:
+            uipc_main.ch[ch_id].read_poll_tmo_ms = (intptr_t)param;
+            BTIF_TRACE_EVENT("UIPC_SET_READ_POLL_TMO : CH %d, TMO %d ms", ch_id, uipc_main.ch[ch_id].read_poll_tmo_ms );
+            break;
+#ifdef BLUETOOTH_RTK_API
+        case UIPC_SET_SNDBUFSIZE:
+            BTIF_TRACE_EVENT("UIPC_SET_SNDBUFSIZE : CH %d, size %d", ch_id, (int)param);
+            if (uipc_main.ch[ch_id].fd != UIPC_DISCONNECTED)
+            {
+                setsockopt(uipc_main.ch[ch_id].fd , SOL_SOCKET, SO_SNDBUF, (char*)&param, (int)sizeof(int));
+            }
+            break;
+#endif
+
+        default:
+            BTIF_TRACE_EVENT("UIPC_Ioctl : request not handled (%d)", request);
+            break;
+    }
+
+    UIPC_UNLOCK();
+
+    return FALSE;
+}
+
diff --git a/rtkbt/code/bt/udrv/ulinux/uipc_linux.h b/rtkbt/code/bt/udrv/ulinux/uipc_linux.h
new file mode 100755
index 0000000..c2ca3fa
--- /dev/null
+++ b/rtkbt/code/bt/udrv/ulinux/uipc_linux.h
@@ -0,0 +1,42 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2007-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+#ifndef _UIPC_LINUX_H_
+#define _UIPC_LINUX_H_
+
+typedef int SOCKET;
+#define INVALID_SOCKET  (SOCKET)(-1)
+#define SOCKET_ERROR            (-1)
+
+/* tcp/ip socket configuration */
+typedef struct {
+    char            *p_address;
+    unsigned int    port;
+} tUIPC_LINUX_CFG_TCP ;
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Socket configuration for GLGPS interface */
+extern tUIPC_LINUX_CFG_TCP uipc_linux_cfg_glgps;
+
+#ifdef __cplusplus
+}
+#endif
+#endif /* _UIPC_LINUX_H_ */
diff --git a/rtkbt/code/bt/utils/Android.mk b/rtkbt/code/bt/utils/Android.mk
new file mode 100755
index 0000000..739589e
--- /dev/null
+++ b/rtkbt/code/bt/utils/Android.mk
@@ -0,0 +1,25 @@
+LOCAL_PATH := $(call my-dir)
+
+# Utils static library for target
+# ========================================================
+include $(CLEAR_VARS)
+
+LOCAL_C_INCLUDES := \
+	$(LOCAL_PATH)/include \
+	$(LOCAL_PATH)/../btcore/include \
+	$(LOCAL_PATH)/../stack/include \
+	$(LOCAL_PATH)/../ \
+	$(bluetooth_C_INCLUDES)
+
+LOCAL_SRC_FILES := \
+	./src/bt_utils.c
+
+LOCAL_MODULE := libbt-utils-rtk
+LOCAL_MODULE_TAGS := optional
+LOCAL_MODULE_CLASS := STATIC_LIBRARIES
+
+LOCAL_CFLAGS += $(bluetooth_CFLAGS)
+LOCAL_CONLYFLAGS += $(bluetooth_CONLYFLAGS)
+LOCAL_CPPFLAGS += $(bluetooth_CPPFLAGS)
+
+include $(BUILD_STATIC_LIBRARY)
diff --git a/rtkbt/code/bt/utils/BUILD.gn b/rtkbt/code/bt/utils/BUILD.gn
new file mode 100755
index 0000000..e7a5315
--- /dev/null
+++ b/rtkbt/code/bt/utils/BUILD.gn
@@ -0,0 +1,27 @@
+#
+#  Copyright (C) 2015 Google, Inc.
+#
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at:
+#
+#  http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+#
+
+static_library("utils") {
+  sources = [
+    "src/bt_utils.c",
+  ]
+
+  include_dirs = [
+    "include",
+    "//",
+    "//stack/include",
+  ]
+}
diff --git a/rtkbt/code/bt/utils/include/bt_utils.h b/rtkbt/code/bt/utils/include/bt_utils.h
new file mode 100755
index 0000000..fa397f9
--- /dev/null
+++ b/rtkbt/code/bt/utils/include/bt_utils.h
@@ -0,0 +1,46 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+#ifndef BT_UTILS_H
+#define BT_UTILS_H
+
+static const char BT_UTILS_MODULE[] = "bt_utils_module";
+
+/*******************************************************************************
+**  Type definitions
+********************************************************************************/
+
+typedef enum {
+    TASK_HIGH_MEDIA = 0,
+    TASK_HIGH_GKI_TIMER,
+    TASK_HIGH_BTU,
+    TASK_HIGH_HCI_WORKER,
+    TASK_HIGH_USERIAL_READ,
+    TASK_UIPC_READ,
+    TASK_JAVA_ALARM,
+    TASK_HIGH_MAX
+} tHIGH_PRIORITY_TASK;
+
+/*******************************************************************************
+**  Functions
+********************************************************************************/
+
+void raise_priority_a2dp(tHIGH_PRIORITY_TASK high_task);
+void adjust_priority_a2dp(int start);
+#define UNUSED(x) (void)(x)
+#endif /* BT_UTILS_H */
diff --git a/rtkbt/code/bt/utils/src/bt_utils.c b/rtkbt/code/bt/utils/src/bt_utils.c
new file mode 100755
index 0000000..2c3422a
--- /dev/null
+++ b/rtkbt/code/bt/utils/src/bt_utils.c
@@ -0,0 +1,183 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/************************************************************************************
+ *
+ *  Filename:      bt_utils.c
+ *
+ *  Description:   Miscellaneous helper functions
+ *
+ *
+ ***********************************************************************************/
+
+#define LOG_TAG "bt_utils"
+
+#include "bt_utils.h"
+
+#include <errno.h>
+#include <pthread.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/resource.h>
+#include <unistd.h>
+
+#include <utils/ThreadDefs.h>
+#include <cutils/sched_policy.h>
+
+#include "bt_types.h"
+#include "btcore/include/module.h"
+#include "osi/include/compat.h"
+#include "osi/include/log.h"
+#include "osi/include/properties.h"
+
+/*******************************************************************************
+**  Type definitions for callback functions
+********************************************************************************/
+static pthread_once_t g_DoSchedulingGroupOnce[TASK_HIGH_MAX];
+static BOOLEAN g_DoSchedulingGroup[TASK_HIGH_MAX];
+static pthread_mutex_t         gIdxLock;
+static int g_TaskIdx;
+static int g_TaskIDs[TASK_HIGH_MAX];
+#define INVALID_TASK_ID  (-1)
+
+static future_t *init(void) {
+  int i;
+  pthread_mutexattr_t lock_attr;
+
+  for(i = 0; i < TASK_HIGH_MAX; i++) {
+    g_DoSchedulingGroupOnce[i] = PTHREAD_ONCE_INIT;
+    g_DoSchedulingGroup[i] = TRUE;
+    g_TaskIDs[i] = INVALID_TASK_ID;
+  }
+
+  pthread_mutexattr_init(&lock_attr);
+  pthread_mutex_init(&gIdxLock, &lock_attr);
+  return NULL;
+}
+
+static future_t *clean_up(void) {
+  pthread_mutex_destroy(&gIdxLock);
+  return NULL;
+}
+
+EXPORT_SYMBOL const module_t bt_utils_module = {
+  .name = BT_UTILS_MODULE,
+  .init = init,
+  .start_up = NULL,
+  .shut_down = NULL,
+  .clean_up = clean_up,
+  .dependencies = {
+    NULL
+  }
+};
+
+/*****************************************************************************
+**
+** Function        check_do_scheduling_group
+**
+** Description     check if it is ok to change schedule group
+**
+** Returns         void
+**
+*******************************************************************************/
+static void check_do_scheduling_group(void) {
+    char buf[PROPERTY_VALUE_MAX];
+    int len = osi_property_get("debug.sys.noschedgroups", buf, "");
+    if (len > 0) {
+        int temp;
+        if (sscanf(buf, "%d", &temp) == 1) {
+            g_DoSchedulingGroup[g_TaskIdx] = temp == 0;
+        }
+    }
+}
+
+/*****************************************************************************
+**
+** Function        raise_priority_a2dp
+**
+** Description     Raise task priority for A2DP streaming
+**
+** Returns         void
+**
+*******************************************************************************/
+void raise_priority_a2dp(tHIGH_PRIORITY_TASK high_task) {
+    int rc = 0;
+    int tid = gettid();
+    int priority = ANDROID_PRIORITY_AUDIO;
+
+    pthread_mutex_lock(&gIdxLock);
+    g_TaskIdx = high_task;
+
+    // TODO(armansito): Remove this conditional check once we find a solution
+    // for system/core on non-Android platforms.
+#if defined(OS_GENERIC)
+    rc = -1;
+#else  // !defined(OS_GENERIC)
+    pthread_once(&g_DoSchedulingGroupOnce[g_TaskIdx], check_do_scheduling_group);
+    if (g_DoSchedulingGroup[g_TaskIdx]) {
+        // set_sched_policy does not support tid == 0
+        rc = set_sched_policy(tid, SP_AUDIO_SYS);
+    }
+#endif  // defined(OS_GENERIC)
+
+    g_TaskIDs[high_task] = tid;
+    pthread_mutex_unlock(&gIdxLock);
+
+    if (rc) {
+        LOG_WARN(LOG_TAG, "failed to change sched policy, tid %d, err: %d", tid, errno);
+    }
+
+    // always use urgent priority for HCI worker thread until we can adjust
+    // its prio individually. All other threads can be dynamically adjusted voa
+    // adjust_priority_a2dp()
+
+    priority = ANDROID_PRIORITY_URGENT_AUDIO;
+
+    if (setpriority(PRIO_PROCESS, tid, priority) < 0) {
+        LOG_WARN(LOG_TAG, "failed to change priority tid: %d to %d", tid, priority);
+    }
+}
+
+/*****************************************************************************
+**
+** Function        adjust_priority_a2dp
+**
+** Description     increase the a2dp consumer task priority temporarily when start
+**                 audio playing, to avoid overflow the audio packet queue, restore
+**                 the a2dp consumer task priority when stop audio playing.
+**
+** Returns         void
+**
+*******************************************************************************/
+void adjust_priority_a2dp(int start) {
+    int priority = start ? ANDROID_PRIORITY_URGENT_AUDIO : ANDROID_PRIORITY_AUDIO;
+    int tid;
+    int i;
+
+    for (i = 0; i < TASK_HIGH_MAX; i++)
+    {
+        tid = g_TaskIDs[i];
+        if (tid != INVALID_TASK_ID)
+        {
+            if (setpriority(PRIO_PROCESS, tid, priority) < 0)
+            {
+                LOG_WARN(LOG_TAG, "failed to change priority tid: %d to %d", tid, priority);
+            }
+        }
+    }
+}
diff --git a/rtkbt/code/bt/vendor_libs/BUILD.gn b/rtkbt/code/bt/vendor_libs/BUILD.gn
new file mode 100755
index 0000000..2a12558
--- /dev/null
+++ b/rtkbt/code/bt/vendor_libs/BUILD.gn
@@ -0,0 +1,23 @@
+#
+#  Copyright (C) 2015 Google, Inc.
+#
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at:
+#
+#  http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+#
+
+group("vendor-libs") {
+  deps = [
+    "linux:bt-vendor-linux",
+    #TODO(jpawlowski): uncomment when building fixed
+    #    "test_vendor_lib:test_vendor_lib",
+  ]
+}
diff --git a/rtkbt/code/bt/vendor_libs/linux/Android.mk b/rtkbt/code/bt/vendor_libs/linux/Android.mk
new file mode 100755
index 0000000..c5b120d
--- /dev/null
+++ b/rtkbt/code/bt/vendor_libs/linux/Android.mk
@@ -0,0 +1,43 @@
+#
+#  Copyright (C) 2015 Intel Corporation
+#
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at:
+#
+#  http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+#
+
+LOCAL_PATH := $(call my-dir)
+
+ifeq ($(BOARD_HAVE_BLUETOOTH_LINUX), true)
+
+# libbt-vendor shared library for target
+# ========================================================
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES := \
+        bt_vendor_linux.c
+
+LOCAL_C_INCLUDES += \
+        $(LOCAL_PATH)/../../
+
+LOCAL_SHARED_LIBRARIES := \
+        libcutils
+
+LOCAL_MODULE := libbt-vendor
+LOCAL_MODULE_TAGS := optional
+
+LOCAL_CFLAGS += $(bluetooth_CFLAGS)
+LOCAL_CONLYFLAGS += $(bluetooth_CONLYFLAGS)
+LOCAL_CPPFLAGS += $(bluetooth_CPPFLAGS)
+
+include $(BUILD_SHARED_LIBRARY)
+
+endif  # BOARD_HAVE_BLUETOOTH_LINUX
diff --git a/rtkbt/code/bt/vendor_libs/linux/BUILD.gn b/rtkbt/code/bt/vendor_libs/linux/BUILD.gn
new file mode 100755
index 0000000..be0c4b4
--- /dev/null
+++ b/rtkbt/code/bt/vendor_libs/linux/BUILD.gn
@@ -0,0 +1,33 @@
+#
+#  Copyright (C) 2015 Google, Inc.
+#
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at:
+#
+#  http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+#
+
+shared_library("bt-vendor-linux") {
+  output_name = "libbt-vendor"
+  sources = [
+    "bt_vendor_linux.c",
+  ]
+
+  deps = [
+   "//osi",
+  ]
+
+  cflags_c = [
+    "-Lobj/osi",
+    "-losi",
+  ]
+
+  include_dirs = [ "//" ]
+}
diff --git a/rtkbt/code/bt/vendor_libs/linux/bt_vendor_linux.c b/rtkbt/code/bt/vendor_libs/linux/bt_vendor_linux.c
new file mode 100755
index 0000000..eec3e01
--- /dev/null
+++ b/rtkbt/code/bt/vendor_libs/linux/bt_vendor_linux.c
@@ -0,0 +1,423 @@
+/**********************************************************************
+ *
+ *  Copyright (C) 2015 Intel Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+ *  implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ **********************************************************************/
+
+#define LOG_TAG "bt_vendor"
+
+#include <errno.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <stdint.h>
+#include <string.h>
+#include <poll.h>
+
+#include <sys/socket.h>
+#include <sys/ioctl.h>
+
+#include "hci/include/bt_vendor_lib.h"
+#include "osi/include/log.h"
+#include "osi/include/properties.h"
+
+#define BTPROTO_HCI     1
+#define HCI_CHANNEL_USER        1
+#define HCI_CHANNEL_CONTROL     3
+#define HCI_DEV_NONE    0xffff
+
+#define RFKILL_TYPE_BLUETOOTH   2
+#define RFKILL_OP_CHANGE_ALL    3
+
+#define MGMT_OP_INDEX_LIST      0x0003
+#define MGMT_EV_INDEX_ADDED     0x0004
+#define MGMT_EV_COMMAND_COMP    0x0001
+#define MGMT_EV_SIZE_MAX        1024
+#define MGMT_EV_POLL_TIMEOUT    3000 /* 3000ms */
+
+#define IOCTL_HCIDEVDOWN        _IOW('H', 202, int)
+
+struct sockaddr_hci {
+  sa_family_t    hci_family;
+  unsigned short hci_dev;
+  unsigned short hci_channel;
+};
+
+struct rfkill_event {
+  uint32_t idx;
+  uint8_t  type;
+  uint8_t  op;
+  uint8_t  soft, hard;
+} __attribute__((packed));
+
+struct mgmt_pkt {
+  uint16_t opcode;
+  uint16_t index;
+  uint16_t len;
+  uint8_t data[MGMT_EV_SIZE_MAX];
+} __attribute__((packed));
+
+struct mgmt_event_read_index {
+  uint16_t cc_opcode;
+  uint8_t status;
+  uint16_t num_intf;
+  uint16_t index[0];
+} __attribute__((packed));
+
+static const bt_vendor_callbacks_t *bt_vendor_callbacks;
+static unsigned char bt_vendor_local_bdaddr[6];
+static int bt_vendor_fd = -1;
+static int hci_interface;
+static int rfkill_en;
+static int bt_hwcfg_en;
+
+static int bt_vendor_init(const bt_vendor_callbacks_t *p_cb,
+                          unsigned char *local_bdaddr)
+{
+  char prop_value[PROPERTY_VALUE_MAX];
+
+  LOG_INFO(LOG_TAG, "%s", __func__);
+
+  if (p_cb == NULL) {
+    LOG_ERROR(LOG_TAG, "init failed with no user callbacks!");
+    return -1;
+  }
+
+  bt_vendor_callbacks = p_cb;
+
+  memcpy(bt_vendor_local_bdaddr, local_bdaddr,
+         sizeof(bt_vendor_local_bdaddr));
+
+  osi_property_get("bluetooth.interface", prop_value, "0");
+
+  errno = 0;
+  if (memcmp(prop_value, "hci", 3))
+    hci_interface = strtol(prop_value, NULL, 10);
+  else
+    hci_interface = strtol(prop_value + 3, NULL, 10);
+  if (errno)
+    hci_interface = 0;
+
+  LOG_INFO(LOG_TAG, "Using interface hci%d", hci_interface);
+
+  osi_property_get("bluetooth.rfkill", prop_value, "0");
+
+  rfkill_en = atoi(prop_value);
+  if (rfkill_en)
+    LOG_INFO(LOG_TAG, "RFKILL enabled");
+
+  bt_hwcfg_en = osi_property_get("bluetooth.hwcfg",
+                             prop_value, NULL) > 0 ? 1 : 0;
+  if (bt_hwcfg_en)
+    LOG_INFO(LOG_TAG, "HWCFG enabled");
+
+  return 0;
+}
+
+static int bt_vendor_hw_cfg(int stop)
+{
+  if (!bt_hwcfg_en)
+    return 0;
+
+  if (stop) {
+    if (osi_property_set("bluetooth.hwcfg", "stop") < 0) {
+      LOG_ERROR(LOG_TAG, "%s cannot stop btcfg service via prop", __func__);
+      return 1;
+    }
+  } else {
+    if (osi_property_set("bluetooth.hwcfg", "start") < 0) {
+      LOG_ERROR(LOG_TAG, "%s cannot start btcfg service via prop", __func__);
+      return 1;
+    }
+  }
+  return 0;
+}
+
+static int bt_vendor_wait_hcidev(void)
+{
+  struct sockaddr_hci addr;
+  struct pollfd fds[1];
+  struct mgmt_pkt ev;
+  int fd;
+  int ret = 0;
+
+  LOG_INFO(LOG_TAG, "%s", __func__);
+
+  fd = socket(PF_BLUETOOTH, SOCK_RAW, BTPROTO_HCI);
+  if (fd < 0) {
+    LOG_ERROR(LOG_TAG, "Bluetooth socket error: %s", strerror(errno));
+    return -1;
+  }
+
+  memset(&addr, 0, sizeof(addr));
+  addr.hci_family = AF_BLUETOOTH;
+  addr.hci_dev = HCI_DEV_NONE;
+  addr.hci_channel = HCI_CHANNEL_CONTROL;
+
+  if (bind(fd, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
+    LOG_ERROR(LOG_TAG, "HCI Channel Control: %s", strerror(errno));
+    close(fd);
+    return -1;
+  }
+
+  fds[0].fd = fd;
+  fds[0].events = POLLIN;
+
+  /* Read Controller Index List Command */
+  ev.opcode = MGMT_OP_INDEX_LIST;
+  ev.index = HCI_DEV_NONE;
+  ev.len = 0;
+
+  ssize_t wrote;
+  OSI_NO_INTR(wrote = write(fd, &ev, 6));
+  if (wrote != 6) {
+    LOG_ERROR(LOG_TAG, "Unable to write mgmt command: %s", strerror(errno));
+    ret = -1;
+    goto end;
+  }
+
+  while (1) {
+    int n;
+    OSI_NO_INTR(n = poll(fds, 1, MGMT_EV_POLL_TIMEOUT));
+    if (n == -1) {
+      LOG_ERROR(LOG_TAG, "Poll error: %s", strerror(errno));
+      ret = -1;
+      break;
+    } else if (n == 0) {
+      LOG_ERROR(LOG_TAG, "Timeout, no HCI device detected");
+      ret = -1;
+      break;
+    }
+
+    if (fds[0].revents & POLLIN) {
+      n = read(fd, &ev, sizeof(struct mgmt_pkt));
+      if (n < 0) {
+        LOG_ERROR(LOG_TAG,
+                  "Error reading control channel");
+        ret = -1;
+        break;
+      }
+
+      if (ev.opcode == MGMT_EV_INDEX_ADDED && ev.index == hci_interface) {
+        goto end;
+      } else if (ev.opcode == MGMT_EV_COMMAND_COMP) {
+        struct mgmt_event_read_index *cc;
+        int i;
+
+        cc = (struct mgmt_event_read_index *)ev.data;
+
+        if (cc->cc_opcode != MGMT_OP_INDEX_LIST || cc->status != 0)
+          continue;
+
+        for (i = 0; i < cc->num_intf; i++) {
+          if (cc->index[i] == hci_interface)
+            goto end;
+        }
+      }
+    }
+  }
+
+end:
+  close(fd);
+  return ret;
+}
+
+static int bt_vendor_open(void *param)
+{
+  int (*fd_array)[] = (int (*)[]) param;
+  int fd;
+
+  LOG_INFO(LOG_TAG, "%s", __func__);
+
+  fd = socket(AF_BLUETOOTH, SOCK_RAW, BTPROTO_HCI);
+  if (fd < 0) {
+    LOG_ERROR(LOG_TAG, "socket create error %s", strerror(errno));
+    return -1;
+  }
+
+  (*fd_array)[CH_CMD] = fd;
+  (*fd_array)[CH_EVT] = fd;
+  (*fd_array)[CH_ACL_OUT] = fd;
+  (*fd_array)[CH_ACL_IN] = fd;
+
+  bt_vendor_fd = fd;
+
+  LOG_INFO(LOG_TAG, "%s returning %d", __func__, bt_vendor_fd);
+
+  return 1;
+}
+
+static int bt_vendor_close(void *param)
+{
+  (void)(param);
+
+  LOG_INFO(LOG_TAG, "%s", __func__);
+
+  if (bt_vendor_fd != -1) {
+    close(bt_vendor_fd);
+    bt_vendor_fd = -1;
+  }
+
+  return 0;
+}
+
+static int bt_vendor_rfkill(int block)
+{
+  struct rfkill_event event;
+  int fd;
+
+  LOG_INFO(LOG_TAG, "%s", __func__);
+
+  fd = open("/dev/rfkill", O_WRONLY);
+  if (fd < 0) {
+    LOG_ERROR(LOG_TAG, "Unable to open /dev/rfkill");
+    return -1;
+  }
+
+  memset(&event, 0, sizeof(struct rfkill_event));
+  event.op = RFKILL_OP_CHANGE_ALL;
+  event.type = RFKILL_TYPE_BLUETOOTH;
+  event.hard = block;
+  event.soft = block;
+
+  ssize_t len;
+  OSI_NO_INTR(len = write(fd, &event, sizeof(event)));
+  if (len < 0) {
+    LOG_ERROR(LOG_TAG, "Failed to change rfkill state");
+    close(fd);
+    return 1;
+  }
+
+  close(fd);
+  return 0;
+}
+
+/* TODO: fw config should thread the device waiting and return immedialty */
+static void bt_vendor_fw_cfg(void)
+{
+  struct sockaddr_hci addr;
+  int fd = bt_vendor_fd;
+
+  LOG_INFO(LOG_TAG, "%s", __func__);
+
+  if (fd == -1) {
+    LOG_ERROR(LOG_TAG, "bt_vendor_fd: %s", strerror(EBADF));
+    goto failure;
+  }
+
+  memset(&addr, 0, sizeof(addr));
+  addr.hci_family = AF_BLUETOOTH;
+  addr.hci_dev = hci_interface;
+  addr.hci_channel = HCI_CHANNEL_USER;
+
+  if (bt_vendor_wait_hcidev()) {
+    LOG_ERROR(LOG_TAG, "HCI interface (%d) not found", hci_interface);
+    goto failure;
+  }
+
+  if (bind(fd, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
+    LOG_ERROR(LOG_TAG, "socket bind error %s", strerror(errno));
+    goto failure;
+  }
+
+  LOG_INFO(LOG_TAG, "HCI device ready");
+
+  bt_vendor_callbacks->fwcfg_cb(BT_VND_OP_RESULT_SUCCESS);
+
+  return;
+
+failure:
+  LOG_ERROR(LOG_TAG, "Hardware Config Error");
+  bt_vendor_callbacks->fwcfg_cb(BT_VND_OP_RESULT_FAIL);
+}
+
+static int bt_vendor_op(bt_vendor_opcode_t opcode, void *param)
+{
+  int retval = 0;
+
+  LOG_INFO(LOG_TAG, "%s op %d", __func__, opcode);
+
+  switch (opcode) {
+  case BT_VND_OP_POWER_CTRL:
+    if (!rfkill_en || !param)
+      break;
+
+    if (*((int *)param) == BT_VND_PWR_ON) {
+      retval = bt_vendor_rfkill(0);
+      if (!retval)
+        retval = bt_vendor_hw_cfg(0);
+    } else {
+      retval = bt_vendor_hw_cfg(1);
+      if (!retval)
+        retval = bt_vendor_rfkill(1);
+    }
+
+    break;
+
+  case BT_VND_OP_FW_CFG:
+    bt_vendor_fw_cfg();
+    break;
+
+  case BT_VND_OP_SCO_CFG:
+    bt_vendor_callbacks->scocfg_cb(BT_VND_OP_RESULT_SUCCESS);
+    break;
+
+  case BT_VND_OP_USERIAL_OPEN:
+    retval = bt_vendor_open(param);
+    break;
+
+  case BT_VND_OP_USERIAL_CLOSE:
+    retval = bt_vendor_close(param);
+    break;
+
+  case BT_VND_OP_GET_LPM_IDLE_TIMEOUT:
+    *((uint32_t *)param) = 3000;
+    retval = 0;
+    break;
+
+  case BT_VND_OP_LPM_SET_MODE:
+    bt_vendor_callbacks->lpm_cb(BT_VND_OP_RESULT_SUCCESS);
+    break;
+
+  case BT_VND_OP_LPM_WAKE_SET_STATE:
+    break;
+
+  case BT_VND_OP_SET_AUDIO_STATE:
+    bt_vendor_callbacks->audio_state_cb(BT_VND_OP_RESULT_SUCCESS);
+    break;
+
+  case BT_VND_OP_EPILOG:
+    bt_vendor_callbacks->epilog_cb(BT_VND_OP_RESULT_SUCCESS);
+    break;
+  }
+
+  LOG_INFO(LOG_TAG, "%s op %d retval %d", __func__, opcode, retval);
+
+  return retval;
+}
+
+static void bt_vendor_cleanup(void)
+{
+  LOG_INFO(LOG_TAG, "%s", __func__);
+
+  bt_vendor_callbacks = NULL;
+}
+
+EXPORT_SYMBOL const bt_vendor_interface_t BLUETOOTH_VENDOR_LIB_INTERFACE = {
+  sizeof(bt_vendor_interface_t),
+  bt_vendor_init,
+  bt_vendor_op,
+  bt_vendor_cleanup,
+};
diff --git a/rtkbt/code/bt/vendor_libs/test_vendor_lib/Android.mk b/rtkbt/code/bt/vendor_libs/test_vendor_lib/Android.mk
new file mode 100755
index 0000000..7f1f349
--- /dev/null
+++ b/rtkbt/code/bt/vendor_libs/test_vendor_lib/Android.mk
@@ -0,0 +1,77 @@
+LOCAL_PATH := $(call my-dir)
+
+# test-vendor shared library for target
+# ========================================================
+include $(CLEAR_VARS)
+
+BT_DIR := $(TOP_DIR)system/bt
+
+LOCAL_SRC_FILES := \
+    src/bt_vendor.cc \
+    src/command_packet.cc \
+    src/dual_mode_controller.cc \
+    src/event_packet.cc \
+    src/hci_transport.cc \
+    src/packet.cc \
+    src/packet_stream.cc \
+    src/test_channel_transport.cc \
+    src/vendor_manager.cc
+
+# We pull in gtest because base/files/file_util.h, which is used to read the
+# controller properties file, needs gtest/gtest_prod.h.
+LOCAL_C_INCLUDES := \
+    $(LOCAL_PATH)/include \
+    $(BT_DIR) \
+    $(BT_DIR)/hci/include \
+    $(BT_DIR)/stack/include \
+    $(BT_DIR)/third_party/gtest/include
+
+LOCAL_SHARED_LIBRARIES := \
+    liblog \
+    libchrome
+
+LOCAL_CPP_EXTENSION := .cc
+LOCAL_MODULE := test-vendor-rtk
+LOCAL_MODULE_TAGS := optional
+LOCAL_MODULE_CLASS := SHARED_LIBRARIES
+
+LOCAL_CFLAGS += $(bluetooth_CFLAGS)
+LOCAL_CONLYFLAGS += $(bluetooth_CONLYFLAGS)
+LOCAL_CPPFLAGS += $(bluetooth_CPPFLAGS)
+
+include $(BUILD_SHARED_LIBRARY)
+
+## test-vendor unit tests for host
+## ========================================================
+#ifeq ($(HOST_OS), linux)
+#include $(CLEAR_VARS)
+#
+#LOCAL_SRC_FILES := \
+#    src/command_packet.cc \
+#    src/event_packet.cc \
+#    src/hci_transport.cc \
+#    src/packet.cc \
+#    src/packet_stream.cc \
+#    test/hci_transport_unittest.cc \
+#    test/packet_stream_unittest.cc
+#
+#LOCAL_C_INCLUDES := \
+#    $(LOCAL_PATH)/include \
+#    $(BT_DIR) \
+#    $(BT_DIR)/hci/include \
+#    $(BT_DIR)/stack/include
+#
+#LOCAL_SHARED_LIBRARIES := \
+#    liblog \
+#    libchrome
+#
+#LOCAL_CPP_EXTENSION := .cc
+#LOCAL_MODULE := test-vendor_test_host
+#LOCAL_MODULE_TAGS := tests
+#
+#LOCAL_CFLAGS += $(bluetooth_CFLAGS)
+#LOCAL_CONLYFLAGS += $(bluetooth_CONLYFLAGS)
+#LOCAL_CPPFLAGS += $(bluetooth_CPPFLAGS)
+#
+#include $(BUILD_HOST_NATIVE_TEST)
+#endif
diff --git a/rtkbt/code/bt/vendor_libs/test_vendor_lib/BUILD.gn b/rtkbt/code/bt/vendor_libs/test_vendor_lib/BUILD.gn
new file mode 100755
index 0000000..76f4651
--- /dev/null
+++ b/rtkbt/code/bt/vendor_libs/test_vendor_lib/BUILD.gn
@@ -0,0 +1,55 @@
+shared_library("test_vendor_lib") {
+  sources = [
+    "src/bt_vendor.cc",
+    "src/command_packet.cc",
+    "src/dual_mode_controller.cc",
+    "src/event_packet.cc",
+    "src/hci_transport.cc",
+    "src/packet.cc",
+    "src/packet_stream.cc",
+    "src/test_channel_transport.cc",
+    "src/vendor_manager.cc",
+  ]
+
+  include_dirs = [
+    "include",
+    "//",
+
+    # TODO(dennischeng): Ideally we should need to have the lines below for
+    # indirect includes.
+    "//stack/include",
+    "//third_party/libchrome:base",
+  ]
+}
+
+executable("test_vendor_lib_test") {
+  testonly = true
+  sources = [
+    "src/command_packet.cc",
+    "src/event_packet.cc",
+    "src/packet.cc",
+    "src/packet_stream.cc",
+    "test/hci_transport_unittest.cc",
+    "test/packet_stream_unittest.cc",
+  ]
+
+  include_dirs = [
+    "include",
+    "//",
+    "//btcore/include",
+    "//hci/include",
+    "//stack/include",
+  ]
+
+  deps = [
+    "//third_party/googletest:gtest_main",
+    "//third_party/libchrome:base",
+    "//vendor_libs/test_vendor_lib",
+  ]
+
+  libs = [
+    "-lpthread",
+    "-lrt",
+    "-ldl",
+  ]
+}
diff --git a/rtkbt/code/bt/vendor_libs/test_vendor_lib/data/controller_properties.json b/rtkbt/code/bt/vendor_libs/test_vendor_lib/data/controller_properties.json
new file mode 100755
index 0000000..32adc52
--- /dev/null
+++ b/rtkbt/code/bt/vendor_libs/test_vendor_lib/data/controller_properties.json
@@ -0,0 +1,13 @@
+{
+  "AclDataPacketSize": "1024",
+  "ScoDataPacketSize": "255",
+  "NumAclDataPackets": "10",
+  "NumScoDataPackets": "10",
+  "Version": "4",
+  "Revision": "0",
+  "LmpPalVersion": "0",
+  "ManufacturerName": "0",
+  "LmpPalSubversion": "0",
+  "MaximumPageNumber": "0",
+  "BdAddress": "123456"
+}
diff --git a/rtkbt/code/bt/vendor_libs/test_vendor_lib/include/command_packet.h b/rtkbt/code/bt/vendor_libs/test_vendor_lib/include/command_packet.h
new file mode 100755
index 0000000..a3ff664
--- /dev/null
+++ b/rtkbt/code/bt/vendor_libs/test_vendor_lib/include/command_packet.h
@@ -0,0 +1,80 @@
+//
+// Copyright 2015 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#pragma once
+
+#include <cstdint>
+#include <vector>
+
+#include "base/macros.h"
+#include "vendor_libs/test_vendor_lib/include/packet.h"
+
+namespace test_vendor_lib {
+
+// The following is specified in the Bluetooth Core Specification Version 4.2,
+// Volume 2, Part E, Section 5.4.1 (page 470). Command Packets begin with a 3
+// octet header formatted as follows:
+// - Opcode: 2 octets
+//   - Opcode Group Field (OGF): Upper bits 10-15
+//   - Opcode Command Field (OCF): Lower bits 0-9
+// - Payload size (in octets): 1 octet
+// The header is followed by the payload, which contains command specific
+// parameters and has a maximum size of 255 octets. Valid command opcodes are
+// defined in stack/include/hcidefs.h. The OGF ranges from 0x00 to 0x3F, with
+// 0x3F reserved for vendor-specific debug functions. The OCF ranges from
+// 0x0000 to 0x03FF. Note that the payload size is the size in octets of the
+// command parameters and not the number of parameters. Finally, although the
+// parameters contained in the payload are command specific (including the size
+// and number of parameters), each parameter will be an integer number of octets
+// in size.
+class CommandPacket : public Packet {
+ public:
+  CommandPacket();
+
+  virtual ~CommandPacket() override = default;
+
+  // Returns the command opcode as defined in stack/include/hcidefs.h.
+  // See the Bluetooth Core Specification Version 4.2, Volume 2, Part E,
+  // Section 7 for more information about each HCI commands and for a listing
+  // of their specific opcodes/OGF and OCF values.
+  uint16_t GetOpcode() const;
+
+  // Returns the 6 bit opcode group field that specifies the general category of
+  // the command. The OGF can be one of seven values:
+  // - 0x01: Link control commands
+  // - 0x02: Link policy commands
+  // - 0x03: Controller and baseband commands
+  // - 0x04: Informational parameters commands
+  // - 0x05: Status parameters commands
+  // - 0x06: Testing commands
+  // - 0x08: Low energy controller commands
+  // The upper 2 bits will be zero filled.
+  uint8_t GetOGF() const;
+
+  // Returns the 10 bit opcode command field that specifies an exact command
+  // within an opcode group field. The upper 6 bits will be zero filled.
+  uint16_t GetOCF() const;
+
+  // Size in octets of a command packet header, which consists of a 2 octet
+  // opcode and a 1 octet payload size.
+  static const size_t kCommandHeaderSize = 3;
+
+ private:
+  // Disallow any copies of the singleton to be made.
+  DISALLOW_COPY_AND_ASSIGN(CommandPacket);
+};
+
+}  // namespace test_vendor_lib
diff --git a/rtkbt/code/bt/vendor_libs/test_vendor_lib/include/dual_mode_controller.h b/rtkbt/code/bt/vendor_libs/test_vendor_lib/include/dual_mode_controller.h
new file mode 100755
index 0000000..c2c7aa5
--- /dev/null
+++ b/rtkbt/code/bt/vendor_libs/test_vendor_lib/include/dual_mode_controller.h
@@ -0,0 +1,369 @@
+//
+// Copyright 2015 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#pragma once
+
+#include <cstdint>
+#include <memory>
+#include <string>
+#include <vector>
+#include <unordered_map>
+
+#include "base/json/json_value_converter.h"
+#include "base/time/time.h"
+#include "vendor_libs/test_vendor_lib/include/command_packet.h"
+#include "vendor_libs/test_vendor_lib/include/hci_transport.h"
+#include "vendor_libs/test_vendor_lib/include/test_channel_transport.h"
+
+namespace test_vendor_lib {
+
+// Emulates a dual mode BR/EDR + LE controller by maintaining the link layer
+// state machine detailed in the Bluetooth Core Specification Version 4.2,
+// Volume 6, Part B, Section 1.1 (page 30). Provides methods corresponding to
+// commands sent by the HCI. These methods will be registered as callbacks from
+// a controller instance with the HciHandler. To implement a new Bluetooth
+// command, simply add the method declaration below, with return type void and a
+// single const std::vector<uint8_t>& argument. After implementing the
+// method, simply register it with the HciHandler using the SET_HANDLER macro in
+// the controller's default constructor. Be sure to name your method after the
+// corresponding Bluetooth command in the Core Specification with the prefix
+// "Hci" to distinguish it as a controller command.
+class DualModeController {
+ public:
+  class Properties {
+   public:
+    // TODO(dennischeng): Add default initialization and use that to instantiate
+    // a default configured controller if the config file is invalid or not
+    // provided.
+    Properties(const std::string& file_name);
+
+    // Aggregates and returns the result for the Read Local Extended Features
+    // command. This result contains the |maximum_page_number_| property (among
+    // other things not in the Properties object). See the Bluetooth Core
+    // Specification Version 4.2, Volume 2, Part E, Section 7.4.4 (page 792).
+    const std::vector<uint8_t> GetBdAddress();
+
+    // Aggregates and returns the result for the Read Buffer Size command. This
+    // result consists of the |acl_data_packet_size_|, |sco_data_packet_size_|,
+    // |num_acl_data_packets_|, and |num_sco_data_packets_| properties. See the
+    // Bluetooth Core Specification Version 4.2, Volume 2, Part E, Section 7.4.5
+    // (page 794).
+    const std::vector<uint8_t> GetBufferSize();
+
+    // Returns the result for the Read BD_ADDR command. This result is the
+    // |bd_address_| property. See the Bluetooth Core Specification Version
+    // 4.2, Volume 2, Part E, Section 7.4.6 (page 796).
+    const std::vector<uint8_t> GetLocalExtendedFeatures(uint8_t page_number);
+
+    // Returns the result for the Read Local Name command. See the Bluetooth
+    // Core Specification Version 4.2, Volume 2, Part E, Section 7.3.12
+    // (page 664).
+    const std::vector<uint8_t> GetLocalName();
+
+    // Returns the result for the Read Local Supported Commands command. See the
+    // Bluetooth Core Specification Version 4.2, Volume 2, Part E, Section 7.4.2
+    // (page 790).
+    const std::vector<uint8_t> GetLocalSupportedCommands();
+
+    // Aggregates and returns the Read Local Version Information result. This
+    // consists of the |version_|, |revision_|, |lmp_pal_version_|,
+    // |manufacturer_name_|, and |lmp_pal_subversion_|. See the Bluetooth Core
+    // Specification Version 4.2, Volume 2, Part E, Section 7.4.1 (page 788).
+    const std::vector<uint8_t> GetLocalVersionInformation();
+
+    static void RegisterJSONConverter(
+        base::JSONValueConverter<Properties>* converter);
+
+   private:
+    uint16_t acl_data_packet_size_;
+    uint8_t sco_data_packet_size_;
+    uint16_t num_acl_data_packets_;
+    uint16_t num_sco_data_packets_;
+    uint8_t version_;
+    uint16_t revision_;
+    uint8_t lmp_pal_version_;
+    uint16_t manufacturer_name_;
+    uint16_t lmp_pal_subversion_;
+    uint8_t maximum_page_number_;
+    uint8_t local_supported_commands_size_;
+    uint8_t local_name_size_;
+    std::vector<uint8_t> bd_address_;
+  };
+
+  // Sets all of the methods to be used as callbacks in the HciHandler.
+  DualModeController();
+
+  ~DualModeController() = default;
+
+  // Preprocesses the command, primarily checking testh channel hooks. If
+  // possible, dispatches the corresponding controller method corresponding to
+  // carry out the command.
+  void HandleCommand(std::unique_ptr<CommandPacket> command_packet);
+
+  // Dispatches the test channel action corresponding to the command specified
+  // by |name|.
+  void HandleTestChannelCommand(const std::string& name,
+                                const std::vector<std::string>& args);
+
+  // Sets the controller Handle* methods as callbacks for the transport to call
+  // when data is received.
+  void RegisterHandlersWithHciTransport(HciTransport& transport);
+
+  // Sets the test channel handler with the transport dedicated to test channel
+  // communications.
+  void RegisterHandlersWithTestChannelTransport(
+      TestChannelTransport& transport);
+
+  // Sets the callback to be used for sending events back to the HCI.
+  // TODO(dennischeng): Once PostDelayedTask works, get rid of this and only use
+  // |RegisterDelayedEventChannel|.
+  void RegisterEventChannel(
+      std::function<void(std::unique_ptr<EventPacket>)> send_event);
+
+  void RegisterDelayedEventChannel(
+      std::function<void(std::unique_ptr<EventPacket>, base::TimeDelta)>
+          send_event);
+
+  // Controller commands. For error codes, see the Bluetooth Core Specification,
+  // Version 4.2, Volume 2, Part D (page 370).
+
+  // OGF: 0x0003
+  // OCF: 0x0003
+  // Bluetooth Core Specification Version 4.2 Volume 2 Part E 7.3.2
+  void HciReset(const std::vector<uint8_t>& args);
+
+  // OGF: 0x0004
+  // OGF: 0x0005
+  // Bluetooth Core Specification Version 4.2 Volume 2 Part E 7.4.5
+  void HciReadBufferSize(const std::vector<uint8_t>& args);
+
+  // OGF: 0x0003
+  // OCF: 0x0033
+  // Bluetooth Core Specification Version 4.2 Volume 2 Part E 7.3.39
+  void HciHostBufferSize(const std::vector<uint8_t>& args);
+
+  // OGF: 0x0004
+  // OCF: 0x0001
+  // Bluetooth Core Specification Version 4.2 Volume 2 Part E 7.4.1
+  void HciReadLocalVersionInformation(const std::vector<uint8_t>& args);
+
+  // OGF: 0x0004
+  // OCF: 0x0009
+  // Bluetooth Core Specification Version 4.2 Volume 2 Part E 7.4.6
+  void HciReadBdAddr(const std::vector<uint8_t>& args);
+
+  // OGF: 0x0004
+  // OCF: 0x0002
+  // Bluetooth Core Specification Version 4.2 Volume 2 Part E 7.4.2
+  void HciReadLocalSupportedCommands(const std::vector<uint8_t>& args);
+
+  // OGF: 0x0004
+  // OCF: 0x0004
+  // Bluetooth Core Specification Version 4.2 Volume 2 Part E 7.4.4
+  void HciReadLocalExtendedFeatures(const std::vector<uint8_t>& args);
+
+  // OGF: 0x0003
+  // OCF: 0x0056
+  // Bluetooth Core Specification Version 4.2 Volume 2 Part E 7.3.59
+  void HciWriteSimplePairingMode(const std::vector<uint8_t>& args);
+
+  // OGF: 0x0003
+  // OCF: 0x006D
+  // Bluetooth Core Specification Version 4.2 Volume 2 Part E 7.3.79
+  void HciWriteLeHostSupport(const std::vector<uint8_t>& args);
+
+  // OGF: 0x0003
+  // OCF: 0x0001
+  // Bluetooth Core Specification Version 4.2 Volume 2 Part E 7.3.1
+  void HciSetEventMask(const std::vector<uint8_t>& args);
+
+  // OGF: 0x0003
+  // OCF: 0x0045
+  // Bluetooth Core Specification Version 4.2 Volume 2 Part E 7.3.50
+   void HciWriteInquiryMode(const std::vector<uint8_t>& args);
+
+  // OGF: 0x0003
+  // OCF: 0x0047
+  // Bluetooth Core Specification Version 4.2 Volume 2 Part E 7.3.52
+   void HciWritePageScanType(const std::vector<uint8_t>& args);
+
+  // OGF: 0x0003
+  // OCF: 0x0043
+  // Bluetooth Core Specification Version 4.2 Volume 2 Part E 7.3.48
+  void HciWriteInquiryScanType(const std::vector<uint8_t>& args);
+
+  // OGF: 0x0003
+  // OCF: 0x0024
+  // Bluetooth Core Specification Version 4.2 Volume 2 Part E 7.3.26
+  void HciWriteClassOfDevice(const std::vector<uint8_t>& args);
+
+  // OGF: 0x0003
+  // OCF: 0x0018
+  // Bluetooth Core Specification Version 4.2 Volume 2 Part E 7.3.16
+  void HciWritePageTimeout(const std::vector<uint8_t>& args);
+
+  // OGF: 0x0002
+  // OCF: 0x000F
+  // Bluetooth Core Specification Version 4.2 Volume 2 Part E 7.2.12
+  void HciWriteDefaultLinkPolicySettings(const std::vector<uint8_t>& args);
+
+  // OGF: 0x0003
+  // OCF: 0x0014
+  // Bluetooth Core Specification Version 4.2 Volume 2 Part E 7.3.12
+  void HciReadLocalName(const std::vector<uint8_t>& args);
+
+  // OGF: 0x0003
+  // OCF: 0x0013
+  // Bluetooth Core Specification Version 4.2 Volume 2 Part E 7.3.11
+  void HciWriteLocalName(const std::vector<uint8_t>& args);
+
+  // OGF: 0x0003
+  // OCF: 0x0052
+  // Bluetooth Core Specification Version 4.2 Volume 2 Part E 7.3.56
+  void HciWriteExtendedInquiryResponse(const std::vector<uint8_t>& args);
+
+  // OGF: 0x0003
+  // OCF: 0x0026
+  // Bluetooth Core Specification Version 4.2 Volume 2 Part E 7.3.28
+  void HciWriteVoiceSetting(const std::vector<uint8_t>& args);
+
+  // OGF: 0x0003
+  // OCF: 0x003A
+  // Bluetooth Core Specification Version 4.2 Volume 2 Part E 7.3.45
+    void HciWriteCurrentIacLap(const std::vector<uint8_t>& args);
+
+  // OGF: 0x0003
+  // OCF: 0x001E
+  // Bluetooth Core Specification Version 4.2 Volume 2 Part E 7.3.22
+   void HciWriteInquiryScanActivity(const std::vector<uint8_t>& args);
+
+  // OGF: 0x0003
+  // OCF: 0x001A
+  // Bluetooth Core Specification Version 4.2 Volume 2 Part E 7.3.18
+  void HciWriteScanEnable(const std::vector<uint8_t>& args);
+
+  // OGF: 0x0003
+  // OCF: 0x0005
+  // Bluetooth Core Specification Version 4.2 Volume 2 Part E 7.3.3
+  void HciSetEventFilter(const std::vector<uint8_t>& args);
+
+  // OGF: 0x0001
+  // OCF: 0x0001
+  // Bluetooth Core Specification Version 4.2 Volume 2 Part E 7.1.1
+  void HciInquiry(const std::vector<uint8_t>& args);
+
+  // OGF: 0x0001
+  // OCF: 0x0002
+  // Bluetooth Core Specification Version 4.2 Volume 2 Part E 7.1.2
+  void HciInquiryCancel(const std::vector<uint8_t>& args);
+
+  // OGF: 0x0003
+  // OCF: 0x0012
+  // Bluetooth Core Specification Version 4.2 Volume 2 Part E 7.3.10
+  void HciDeleteStoredLinkKey(const std::vector<uint8_t>& args);
+
+  // OGF: 0x0001
+  // OCF: 0x0019
+  // Bluetooth Core Specification Version 4.2 Volume 2 Part E 7.1.19
+  void HciRemoteNameRequest(const std::vector<uint8_t>& args);
+
+  // Test Channel commands:
+
+  // Clears all test channel modifications.
+  void TestChannelClear(const std::vector<std::string>& args);
+
+  // Sets the response delay for events to 0.
+  void TestChannelClearEventDelay(const std::vector<std::string>& args);
+
+  // Discovers a fake device.
+  void TestChannelDiscover(const std::vector<std::string>& args);
+
+  // Causes events to be sent after a delay.
+  void TestChannelSetEventDelay(const std::vector<std::string>& args);
+
+  // Causes all future HCI commands to timeout.
+  void TestChannelTimeoutAll(const std::vector<std::string>& args);
+
+ private:
+  // Current link layer state of the controller.
+  enum State {
+    kStandby,  // Not receiving/transmitting any packets from/to other devices.
+    kInquiry,  // The controller is discovering other nearby devices.
+  };
+
+  enum TestChannelState {
+    kNone,  // The controller is running normally.
+    kTimeoutAll,  // All commands should time out, i.e. send no response.
+    kDelayedResponse,  // Event responses are sent after a delay.
+  };
+
+  // Creates a command complete event and sends it back to the HCI.
+  void SendCommandComplete(uint16_t command_opcode,
+                           const std::vector<uint8_t>& return_parameters) const;
+
+  // Sends a command complete event with no return parameters. This event is
+  // typically sent for commands that can be completed immediately.
+  void SendCommandCompleteSuccess(uint16_t command_opcode) const;
+
+  // Creates a command status event and sends it back to the HCI.
+  void SendCommandStatus(uint8_t status, uint16_t command_opcode) const;
+
+  // Sends a command status event with default event parameters.
+  void SendCommandStatusSuccess(uint16_t command_opcode) const;
+
+  // Sends an inquiry response for a fake device.
+  void SendInquiryResult() const;
+
+  // Sends an extended inquiry response for a fake device.
+  void SendExtendedInquiryResult(const std::string& name,
+                                 const std::string& address) const;
+
+  void SetEventDelay(int64_t delay);
+
+  // Callback provided to send events from the controller back to the HCI.
+  std::function<void(std::unique_ptr<EventPacket>)> send_event_;
+
+  std::function<void(std::unique_ptr<EventPacket>, base::TimeDelta)>
+      send_delayed_event_;
+
+  // Maintains the commands to be registered and used in the HciHandler object.
+  // Keys are command opcodes and values are the callbacks to handle each
+  // command.
+  std::unordered_map<uint16_t, std::function<void(const std::vector<uint8_t>&)>>
+      active_hci_commands_;
+
+  std::unordered_map<std::string,
+                     std::function<void(const std::vector<std::string>&)>>
+      active_test_channel_commands_;
+
+  // Specifies the format of Inquiry Result events to be returned during the
+  // Inquiry command.
+  // 0x00: Standard Inquiry Result event format (default).
+  // 0x01: Inquiry Result format with RSSI.
+  // 0x02 Inquiry Result with RSSI format or Extended Inquiry Result format.
+  // 0x03-0xFF: Reserved.
+  uint8_t inquiry_mode_;
+
+  State state_;
+
+  Properties properties_;
+
+  TestChannelState test_channel_state_;
+
+  DISALLOW_COPY_AND_ASSIGN(DualModeController);
+};
+
+}  // namespace test_vendor_lib
diff --git a/rtkbt/code/bt/vendor_libs/test_vendor_lib/include/event_packet.h b/rtkbt/code/bt/vendor_libs/test_vendor_lib/include/event_packet.h
new file mode 100755
index 0000000..30e9224
--- /dev/null
+++ b/rtkbt/code/bt/vendor_libs/test_vendor_lib/include/event_packet.h
@@ -0,0 +1,161 @@
+//
+// Copyright 2015 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#pragma once
+
+#include <cstdint>
+#include <memory>
+#include <vector>
+
+#include "base/logging.h"
+#include "vendor_libs/test_vendor_lib/include/packet.h"
+
+namespace test_vendor_lib {
+
+// The following is specified in the Bluetooth Core Specification Version 4.2,
+// Volume 2, Part E, Section 5.4.4 (page 477). Event Packets begin with a 2
+// octet header formatted as follows:
+// - Event code: 1 octet
+// - Payload size (in octets): 1 octet
+// The header is followed by the payload, which contains event specific
+// parameters and has a maximum size of 255 octets. Valid event codes are
+// listed in stack/include/hcidefs.h. They can range from 0x00 to 0xFF, with
+// 0xFF reserved for vendor specific debug events. Note the payload size
+// describes the total size of the event parameters and not the number of
+// parameters. The event parameters contained in the payload will be an integer
+// number of octets in size. Each flavor of event packet is created via a static
+// factory function that takes the event type-specific parameters and returns an
+// initialized event packet from that data.
+class EventPacket : public Packet {
+ public:
+  virtual ~EventPacket() override = default;
+
+  uint8_t GetEventCode() const;
+
+  // Static functions for creating event packets:
+
+  // Creates and returns a command complete event packet. See the Bluetooth
+  // Core Specification Version 4.2, Volume 2, Part E, Section 7.7.14 (page 861)
+  // for more information about the command complete event.
+  // Event Parameters:
+  //   |num_hci_command_packets|
+  //     Indicates the number of HCI command packets the host can send to the
+  //     controller. If |num_hci_command_packets| is 0, the controller would
+  //     like to stop receiving commands from the host (to indicate
+  //     readiness again, the controller sends a command complete event with
+  //     |command_opcode| to 0x0000 (no op) and |num_hci_command_packets| > 1).
+  //   |command_opcode|
+  //     The opcode of the command that caused this event.
+  //   |return_parameters|
+  //     Contains any event specific parameters that should
+  //     be sent to the host.
+  static std::unique_ptr<EventPacket> CreateCommandCompleteEvent(
+      uint8_t num_hci_command_packets, uint16_t command_opcode,
+      const std::vector<uint8_t>& event_return_parameters);
+
+  // Creates and returns a command complete event packet. See the Bluetooth
+  // Core Specification Version 4.2, Volume 2, Part E, Section 7.7.15 (page 862)
+  // for more information about the command complete event.
+  // Event Parameters:
+  //   Status
+  //     0x00: Command currently in pending.
+  //     0x01-0xFF: Command failed.
+  //   |num_hci_command_packets|
+  //     Indicates the number of HCI command packets the host can send to the
+  //     controller. If |num_hci_command_packets| is 0, the controller would
+  //     like to stop receiving commands from the host (to indicate
+  //     readiness again, the controller sends a command complete event with
+  //     |command_opcode| to 0x0000 (no op) and |num_hci_command_packets| > 1).
+  //   |command_opcode|
+  //     The opcode of the command that caused this event.
+  static std::unique_ptr<EventPacket> CreateCommandStatusEvent(
+      uint8_t status, uint8_t num_hci_command_packets, uint16_t command_opcode);
+
+  // Creates and returns an inquiry result event packet. See the Bluetooth
+  // Core Specification Version 4.2, Volume 2, Part E, Section 7.7.2 (page 844)
+  // for more information about the command complete event.
+  // Event Parameters:
+  //   Num Responses (1 octet)
+  //     0xXX: Number of responses from the inquiry.
+  //   Bd Addresses (6 octets * Num Responses)
+  //     0xXXXXXXXXXXX: Bd Address for each device which responded.
+  //   Page Scan Repetition Mode (1 octet * Num Responses)
+  //     0x00: R0
+  //     0x01: R1
+  //     0x02: R2
+  //     0x03-0xFF: Reserved.
+  //   Reserved 1 (1 octet * Num Responses)
+  //     Originally Page Scan Period Mode parameter. No longer in use.
+  //   Reserved 2 (1 octet * Num Responses)
+  //     Originally Page Scan Mode parameter. No longer in use.
+  //   Class of Device (3 octet * Num Responses)
+  //     0xXXXXXX: Class of device.
+  //   Clock Offset (2 octet * Num Responses)
+  //     Bits 14-0: Bits 16-2 of CLKNslave-CLK.
+  //     Bits 15: Reserved.
+  static std::unique_ptr<EventPacket> CreateInquiryResultEvent(
+      uint8_t num_responses, const std::vector<uint8_t>& bd_addresses,
+      const std::vector<uint8_t>& page_scan_repetition_mode,
+      const std::vector<uint8_t>& page_scan_period_mode,
+      const std::vector<uint8_t>& page_scan_mode,
+      const std::vector<uint8_t>& class_of_device,
+      const std::vector<uint8_t>& clock_offset);
+
+  // Creates and returns an inquiry result event packet. See the Bluetooth
+  // Core Specification Version 4.2, Volume 2, Part E, Section 7.7.38 (page 896)
+  // for more information about the command complete event.
+  // Event Parameters:
+  //   Num Responses (1 octet)
+  //     0x01: Always contains a single response.
+  //   Bd Addresses (6 octets * Num Responses)
+  //     0xXXXXXXXXXXX: Bd Address for each device which responded.
+  //   Page Scan Repetition Mode (1 octet * Num Responses)
+  //     0x00: R0
+  //     0x01: R1
+  //     0x02: R2
+  //     0x03-0xFF: Reserved.
+  //   Reserved 1 (1 octet * Num Responses)
+  //     Originally Page Scan Period Mode parameter. No longer in use.
+  //   Class of Device (3 octet * Num Responses)
+  //     0xXXXXXX: Class of device.
+  //   Clock Offset (2 octet * Num Responses)
+  //     Bits 14-0: Bits 16-2 of CLKNslave-CLK.
+  //     Bits 15: Reserved.
+  //   RSSI (1 octet)
+  //     0xXX: Ranges from -127 to +20. Units are dBm.
+  //  Extended Inquiry Response (240 octets)
+  //    Defined in Volumne 2, Part C, Section 8. Also see the Supplement to the
+  //    Bluetooth Core Specificiation for data type definitions and formats.
+  static std::unique_ptr<EventPacket> CreateExtendedInquiryResultEvent(
+      const std::vector<uint8_t>& bd_address,
+      const std::vector<uint8_t>& page_scan_repetition_mode,
+      const std::vector<uint8_t>& page_scan_period_mode,
+      const std::vector<uint8_t>& class_of_device,
+      const std::vector<uint8_t>& clock_offset,
+      const std::vector<uint8_t>& rssi,
+      const std::vector<uint8_t>& extended_inquiry_response);
+
+  // Size in octets of a data packet header, which consists of a 1 octet
+  // event code and a 1 octet payload size.
+  static const size_t kEventHeaderSize = 2;
+
+ private:
+  // Takes in the event parameters in |payload|. These parameters vary by event
+  // and are detailed in the Bluetooth Core Specification.
+  EventPacket(uint8_t event_code, const std::vector<uint8_t>& payload);
+};
+
+}  // namespace test_vendor_lib
diff --git a/rtkbt/code/bt/vendor_libs/test_vendor_lib/include/hci_transport.h b/rtkbt/code/bt/vendor_libs/test_vendor_lib/include/hci_transport.h
new file mode 100755
index 0000000..6668aab
--- /dev/null
+++ b/rtkbt/code/bt/vendor_libs/test_vendor_lib/include/hci_transport.h
@@ -0,0 +1,134 @@
+//
+// Copyright 2015 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#pragma once
+
+#include <functional>
+#include <memory>
+#include <list>
+
+extern "C" {
+#include <sys/epoll.h>
+}  // extern "C"
+
+#include "base/files/scoped_file.h"
+#include "base/memory/weak_ptr.h"
+#include "base/message_loop/message_loop.h"
+#include "base/time/time.h"
+#include "vendor_libs/test_vendor_lib/include/command_packet.h"
+#include "vendor_libs/test_vendor_lib/include/event_packet.h"
+#include "vendor_libs/test_vendor_lib/include/packet.h"
+#include "vendor_libs/test_vendor_lib/include/packet_stream.h"
+
+namespace test_vendor_lib {
+
+// Manages communication channel between HCI and the controller by providing the
+// socketing mechanisms for reading/writing between the HCI and the controller.
+class HciTransport : public base::MessageLoopForIO::Watcher {
+ public:
+  HciTransport();
+
+  virtual ~HciTransport() = default;
+
+  void CloseHciFd();
+
+  void CloseVendorFd();
+
+  int GetHciFd() const;
+
+  int GetVendorFd() const;
+
+  // Creates the underlying socketpair to be used as a communication channel
+  // between the HCI and the vendor library/controller. Returns false if an
+  // error occurs.
+  bool SetUp();
+
+  // Sets the callback that is run when command packets are received.
+  void RegisterCommandHandler(
+      std::function<void(std::unique_ptr<CommandPacket>)> callback);
+
+  // Posts the event onto |outbound_events_| to be written sometime in the
+  // future when the vendor file descriptor is ready for writing.
+  void PostEventResponse(std::unique_ptr<EventPacket> event);
+
+  // Posts the event onto |outbound_events_| after |delay| ms. A call to
+  // |PostEventResponse| with |delay| 0 is equivalent to a call to |PostEvent|.
+  void PostDelayedEventResponse(std::unique_ptr<EventPacket> event,
+                                base::TimeDelta delay);
+
+ private:
+  // Wrapper class for sending events on a delay. The TimeStampedEvent object
+  // takes ownership of a given event packet.
+  class TimeStampedEvent {
+   public:
+    TimeStampedEvent(std::unique_ptr<EventPacket> event, base::TimeDelta delay);
+
+    // Using this constructor is equivalent to calling the 2-argument
+    // constructor with a |delay| of 0. It is used to generate event responses
+    // with no delay.
+    TimeStampedEvent(std::unique_ptr<EventPacket> event);
+
+    const base::TimeTicks& GetTimeStamp() const;
+
+    const EventPacket& GetEvent();
+
+   private:
+    std::shared_ptr<EventPacket> event_;
+
+    // The time associated with the event, indicating the earliest time at which
+    // |event_| will be sent.
+    base::TimeTicks time_stamp_;
+  };
+
+  // base::MessageLoopForIO::Watcher overrides:
+  void OnFileCanReadWithoutBlocking(int fd) override;
+
+  void OnFileCanWriteWithoutBlocking(int fd) override;
+
+  // Reads in a command packet and calls the command ready callback,
+  // |command_handler_|, passing ownership of the command packet to the handler.
+  void ReceiveReadyCommand() const;
+
+  void AddEventToOutboundEvents(std::unique_ptr<TimeStampedEvent> event);
+
+  // Write queue for sending events to the HCI. Event packets are removed from
+  // the queue and written when write-readiness is signalled by the message
+  // loop. After being written, the event packets are destructed.
+  std::list<std::unique_ptr<TimeStampedEvent>> outbound_events_;
+
+  // Callback executed in ReceiveReadyCommand() to pass the incoming command
+  // over to the handler for further processing.
+  std::function<void(std::unique_ptr<CommandPacket>)> command_handler_;
+
+  // For performing packet-based IO.
+  PacketStream packet_stream_;
+
+  // The two ends of the socketpair. |hci_fd_| is handed back to the HCI in
+  // bt_vendor.cc and |vendor_fd_| is used by |packet_stream_| to receive/send
+  // data from/to the HCI. Both file descriptors are owned and managed by the
+  // transport object, although |hci_fd_| can be closed by the HCI in
+  // TestVendorOp().
+  std::unique_ptr<base::ScopedFD> hci_fd_;
+  std::unique_ptr<base::ScopedFD> vendor_fd_;
+
+  // This should remain the last member so it'll be destroyed and invalidate
+  // its weak pointers before any other members are destroyed.
+  base::WeakPtrFactory<HciTransport> weak_ptr_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(HciTransport);
+};
+
+}  // namespace test_vendor_lib
diff --git a/rtkbt/code/bt/vendor_libs/test_vendor_lib/include/packet.h b/rtkbt/code/bt/vendor_libs/test_vendor_lib/include/packet.h
new file mode 100755
index 0000000..9b3978c
--- /dev/null
+++ b/rtkbt/code/bt/vendor_libs/test_vendor_lib/include/packet.h
@@ -0,0 +1,78 @@
+//
+// Copyright 2015 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#pragma once
+
+#include <cstdint>
+#include <vector>
+
+extern "C" {
+#include "hci/include/hci_hal.h"
+}  // extern "C"
+
+namespace test_vendor_lib {
+
+// Abstract base class that is subclassed to provide type-specifc accessors on
+// data. Manages said data's memory and guarantees the data's persistence for IO
+// operations.
+class Packet {
+ public:
+  virtual ~Packet() = default;
+
+  // Returns the size in octets of the entire packet, which consists of the type
+  // octet, the header, and the payload.
+  size_t GetPacketSize() const;
+
+  const std::vector<uint8_t>& GetPayload() const;
+
+  uint8_t GetPayloadSize() const;
+
+  const std::vector<uint8_t>& GetHeader() const;
+
+  uint8_t GetHeaderSize() const;
+
+  serial_data_type_t GetType() const;
+
+  // Validates the packet by checking that the payload size in the header is
+  // accurate. If the size is not valid, returns false. Otherwise, the data in
+  // |header| and |payload| is copied into |header_| and |payload_|
+  // respectively. If an error occurs while the data is being copied, the
+  // contents of |header| and |payload| are guaranteed to be preserved. The
+  // packet object will assume ownership of the copied data for its entire
+  // lifetime.
+  bool Encode(const std::vector<uint8_t>& header,
+              const std::vector<uint8_t>& payload);
+
+ protected:
+  // Constructs an empty packet of type |type|. A call to Encode() shall be made
+  // to check and fill in the packet's data.
+  Packet(serial_data_type_t type);
+
+ private:
+  // Underlying containers for storing the actual packet, broken down into the
+  // packet header and the packet payload. Data is copied into the vectors
+  // during the constructor and becomes accessible (read only) to children
+  // through GetHeader() and GetPayload().
+  std::vector<uint8_t> header_;
+
+  std::vector<uint8_t> payload_;
+
+  // The packet type is one of DATA_TYPE_ACL, DATA_TYPE_COMMAND,
+  // DATA_TYPE_EVENT, or DATA_TYPE_SCO.
+  serial_data_type_t type_;
+};
+
+}  // namespace test_vendor_lib
diff --git a/rtkbt/code/bt/vendor_libs/test_vendor_lib/include/packet_stream.h b/rtkbt/code/bt/vendor_libs/test_vendor_lib/include/packet_stream.h
new file mode 100755
index 0000000..de0d570
--- /dev/null
+++ b/rtkbt/code/bt/vendor_libs/test_vendor_lib/include/packet_stream.h
@@ -0,0 +1,66 @@
+//
+// Copyright 2015 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#pragma once
+
+#include <cstdint>
+#include <vector>
+#include <memory>
+
+#include "vendor_libs/test_vendor_lib/include/command_packet.h"
+#include "vendor_libs/test_vendor_lib/include/event_packet.h"
+#include "vendor_libs/test_vendor_lib/include/packet.h"
+
+namespace test_vendor_lib {
+
+// Provides abstractions for IO with Packet objects. Used to receive commands
+// and data from the HCI and to send controller events back to the host.
+class PacketStream {
+ public:
+  PacketStream() = default;
+
+  virtual ~PacketStream() = default;
+
+  // Reads a command packet from the file descriptor at |fd| and returns the
+  // packet back to the caller, along with the responsibility of managing the
+  // packet.
+  std::unique_ptr<CommandPacket> ReceiveCommand(int fd) const;
+
+  // Reads a single octet from |fd| and interprets it as a packet type octet.
+  // Validates the type octet for correctness.
+  serial_data_type_t ReceivePacketType(int fd) const;
+
+  // Sends an event to file descriptor |fd|. The ownership of the event is left
+  // with the caller.
+  bool SendEvent(const EventPacket& event, int fd) const;
+
+ private:
+  // Checks if |type| is in the valid range from DATA_TYPE_COMMAND to
+  // DATA_TYPE_SCO.
+  bool ValidateTypeOctet(serial_data_type_t type) const;
+
+  // Attempts to receive |num_octets_to_receive| into |destination| from |fd|,
+  // returning false if an error occurs.
+  bool ReceiveAll(std::vector<uint8_t>& destination,
+                  size_t num_octets_to_receive, int fd) const;
+
+  // Attempts to send |num_octets_to_send| from |source| to |fd|, returning
+  // false if an error occurs.
+  bool SendAll(const std::vector<uint8_t>& source, size_t num_octets_to_send,
+               int fd) const;
+};
+
+}  // namespace test_vendor_lib
diff --git a/rtkbt/code/bt/vendor_libs/test_vendor_lib/include/test_channel_transport.h b/rtkbt/code/bt/vendor_libs/test_vendor_lib/include/test_channel_transport.h
new file mode 100755
index 0000000..600e932
--- /dev/null
+++ b/rtkbt/code/bt/vendor_libs/test_vendor_lib/include/test_channel_transport.h
@@ -0,0 +1,77 @@
+//
+// Copyright 2015 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#pragma once
+
+#include <string>
+#include <memory>
+
+#include "base/files/scoped_file.h"
+#include "base/message_loop/message_loop.h"
+
+namespace test_vendor_lib {
+
+// Manages communications between test channel and the controller. Mirrors the
+// HciTransport for the test channel.
+class TestChannelTransport : public base::MessageLoopForIO::Watcher {
+ public:
+  TestChannelTransport(bool enabled, int port);
+
+  ~TestChannelTransport() = default;
+
+  // Waits for a connection request from the test channel program and
+  // allocates the file descriptor to watch for run-time parameters at. This
+  // file descriptor gets stored in |fd_|.
+  bool SetUp();
+
+  int GetFd();
+
+  // Because it imposes a different flow of work, the test channel must be
+  // actively enabled to be used. |enabled_| is set by the vendor manager.
+  bool IsEnabled();
+
+  // Turns the test channel off for use in circumstances where an error occurs
+  // and leaving the channel on would crash Bluetooth (e.g. if the test channel
+  // is unable to bind to its socket, Bluetooth should still start without the
+  // channel enabled).
+  void Disable();
+
+  // Sets the callback that fires when data is read in
+  // |OnFileCanReadWithoutBlocking|.
+  void RegisterCommandHandler(
+      std::function<void(const std::string&, const std::vector<std::string>&)>
+          callback);
+
+ private:
+  // base::MessageLoopForIO::Watcher overrides:
+  void OnFileCanReadWithoutBlocking(int fd) override;
+
+  void OnFileCanWriteWithoutBlocking(int fd) override;
+
+  std::function<void(const std::string&, const std::vector<std::string>&)>
+      command_handler_;
+
+  // File descriptor to watch for test hook data.
+  std::unique_ptr<base::ScopedFD> fd_;
+
+  // TODO(dennischeng): Get port and enabled flag from a config file.
+  int port_;
+  bool enabled_;
+
+  DISALLOW_COPY_AND_ASSIGN(TestChannelTransport);
+};
+
+}  // namespace test_vendor_lib
diff --git a/rtkbt/code/bt/vendor_libs/test_vendor_lib/include/vendor_manager.h b/rtkbt/code/bt/vendor_libs/test_vendor_lib/include/vendor_manager.h
new file mode 100755
index 0000000..7190d5e
--- /dev/null
+++ b/rtkbt/code/bt/vendor_libs/test_vendor_lib/include/vendor_manager.h
@@ -0,0 +1,118 @@
+//
+// Copyright 2015 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#include "base/macros.h"
+#include "base/memory/weak_ptr.h"
+#include "base/threading/thread.h"
+#include "base/time/time.h"
+#include "hci/include/bt_vendor_lib.h"
+#include "vendor_libs/test_vendor_lib/include/dual_mode_controller.h"
+#include "vendor_libs/test_vendor_lib/include/event_packet.h"
+#include "vendor_libs/test_vendor_lib/include/hci_transport.h"
+#include "vendor_libs/test_vendor_lib/include/test_channel_transport.h"
+
+#include <memory>
+
+namespace test_vendor_lib {
+
+// Contains the three core objects that make up the test vendor library: the
+// HciTransport for communication, the HciHandler for processing commands, and
+// the Controller for actual command implementations. The VendorManager shall
+// operate as a global singleton and be used in bt_vendor.cc to perform vendor
+// specific operations, via |vendor_callbacks_|, and to provide access to the
+// test controller by setting up a message loop (on another thread) that the HCI
+// will talk to and controller methods will execute on.
+class VendorManager {
+ public:
+  // Functions that operate on the global manager instance. Initialize()
+  // is called by the vendor library's TestVendorInitialize() function to create
+  // the global manager and must be called before Get() and CleanUp().
+  // CleanUp() should be called when a call to TestVendorCleanUp() is made
+  // since the global manager should live throughout the entire time the test
+  // vendor library is in use.
+  static void CleanUp();
+
+  static VendorManager* Get();
+
+  static void Initialize();
+
+  void CloseHciFd();
+
+  int GetHciFd() const;
+
+  const bt_vendor_callbacks_t& GetVendorCallbacks() const;
+
+  // Stores a copy of the vendor specific configuration callbacks passed into
+  // the vendor library from the HCI in TestVendorInit().
+  void SetVendorCallbacks(const bt_vendor_callbacks_t& callbacks);
+
+  // Returns true if |thread_| is able to be started and the
+  // StartingWatchingOnThread() task has been posted to the task runner.
+  bool Run();
+
+ private:
+  VendorManager();
+
+  ~VendorManager() = default;
+
+  // Posts a callback to |thread_|'s task runner. Equivalent to calling
+  // |PostDelayedTask| with a delay of 0.
+  bool PostTask(const base::Closure& task);
+
+  // Posts a callback to be run after |delay| ms (or longer) have passed.
+  bool PostDelayedTask(const base::Closure& task, base::TimeDelta delay);
+
+  // Starts watching for incoming data from the HCI and the test hook.
+  void StartWatchingOnThread();
+
+  // Creates the HCI's communication channel and overrides IO callbacks to
+  // receive and send packets.
+  HciTransport transport_;
+
+  // The controller object that provides implementations of Bluetooth commands.
+  DualModeController controller_;
+
+  // The two test channel objects that perform functions corresponding to the
+  // HciTransport and HciHandler.
+  TestChannelTransport test_channel_transport_;
+
+  // Configuration callbacks provided by the HCI for use in TestVendorOp().
+  bt_vendor_callbacks_t vendor_callbacks_;
+
+  // True if the underlying message loop (in |thread_|) is running.
+  bool running_;
+
+  // Dedicated thread for managing the message loop to receive and send packets
+  // from the HCI and to receive additional parameters from the test hook file
+  // descriptor.
+  base::Thread thread_;
+
+  // Used to handle further watching of the vendor's/test channel's file
+  // descriptor after WatchFileDescriptor() is called.
+  base::MessageLoopForIO::FileDescriptorWatcher hci_watcher_;
+
+  // Used to handle further watching of the test channel's file descriptor after
+  // WatchFileDescriptor() is called.
+  base::MessageLoopForIO::FileDescriptorWatcher test_channel_watcher_;
+
+  // This should remain the last member so it'll be destroyed and invalidate
+  // its weak pointers before any other members are destroyed.
+  base::WeakPtrFactory<VendorManager> weak_ptr_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(VendorManager);
+};
+
+}  // namespace test_vendor_lib
diff --git a/rtkbt/code/bt/vendor_libs/test_vendor_lib/scripts/build_and_run.sh b/rtkbt/code/bt/vendor_libs/test_vendor_lib/scripts/build_and_run.sh
new file mode 100755
index 0000000..34e0cfe
--- /dev/null
+++ b/rtkbt/code/bt/vendor_libs/test_vendor_lib/scripts/build_and_run.sh
@@ -0,0 +1,127 @@
+#!/bin/bash
+
+#
+# Copyright 2015 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+# Builds and pushes the test vendor library to a connected device and starts
+# logcat with project-specific tag filters. If the --test-channel flag is set,
+# logcat is started in a separate process and the test channel is run in the
+# current shell. The kTestChannelEnabled flag must be set in the vendor manager
+# if the test channel is to be used. Also ensure that 'lunch' has been run for
+# the appropriate device.
+
+if [[ "$#" -ne 2 && "$#" -ne 4 ]]; then
+  echo "Usage:"
+  echo "./build_and_run.sh [/path/to/aosp] [device_name] or"
+  echo "./build_and_run.sh [/path/to/aosp] [device_name] --test-channel [port]"
+  exit 1
+fi
+
+# Exit the script if any command fails.
+set -e
+
+# The home directory for AOSP.
+AOSP_ABS=$1
+# The name of the device to build for.
+DEVICE=$2
+
+# The location of Bluetooth within AOSP.
+BT_REL=/system/bt
+BT_ABS=${AOSP_ABS}${BT_REL}
+
+# The location of the test vendor library.
+TEST_VENDOR_LIB_REL=/vendor_libs/test_vendor_lib
+TEST_VENDOR_LIB_ABS=${BT_ABS}${TEST_VENDOR_LIB_REL}
+
+DEVICE_TARGET_REL=/out/target/product
+DEVICE_TARGET_ABS=${AOSP_ABS}${DEVICE_TARGET_REL}
+
+VENDOR_SYMBOLS_REL=/symbols/system/vendor/lib
+VENDOR_SYMBOLS_ABS=${DEVICE_TARGET_ABS}/${DEVICE}/${VENDOR_SYMBOLS_REL}
+
+# The name of the object built by the test vendor library.
+TEST_VENDOR_LIB=test-vendor.so
+# The name of the regular vendor object to be replaced by $TEST_VENDOR_LIB.
+VENDOR_LIB=libbt-vendor.so
+# The config file specifying controller properties.
+CONTROLLER_PROPERTIES=controller_properties.json
+
+if [[ "$#" -eq 4 && $3 == "--test-channel" ]]; then
+  TEST_CHANNEL_PORT=$4
+  TEST_CHANNEL_REL=/scripts
+  TEST_CHANNEL_ABS=${TEST_VENDOR_LIB_ABS}${TEST_CHANNEL_REL}
+
+  # Start logcat in a subshell.
+  x-terminal-emulator -e "scripts/build_and_run.sh ${AOSP_ABS} ${DEVICE}"
+
+  echo "Setting up build environment."
+  cd ${AOSP_ABS}
+  source build/envsetup.sh
+
+  # Forward local port to the same port on the device.
+  echo "Forwarding port ${TEST_CHANNEL_PORT} to device."
+  adb forward tcp:${TEST_CHANNEL_PORT} tcp:${TEST_CHANNEL_PORT}
+
+  # Turn Bluetooth on. Requires user approval via a dialog on the device.
+  echo "Enabling Bluetooth. Please see dialog on device."
+  adb shell am start -a android.bluetooth.adapter.action.REQUEST_ENABLE
+
+  # Start the test channel once Bluetooth is on and logcat has started.
+  read -p "Press [ENTER] once Bluetooth is enabling AND logcat has started."
+
+  # Start the test channel.
+  python ${TEST_CHANNEL_ABS}/test_channel.py localhost ${TEST_CHANNEL_PORT}
+else
+  echo "Setting up build environment."
+  cd ${AOSP_ABS}
+  source build/envsetup.sh
+
+  echo "Navigating to test vendor library: ${TEST_VENDOR_LIB_ABS}"
+  cd ${TEST_VENDOR_LIB_ABS}
+
+  echo "Building test vendor library."
+  mm
+
+  echo "Remounting device rootfs."
+  adb shell mount -o remount,rw /
+  adb remount
+
+  # Replace the actual vendor library with the test vendor library.
+  mv ${DEVICE_TARGET_ABS}/${DEVICE}/system/lib/${TEST_VENDOR_LIB} \
+    ${VENDOR_SYMBOLS_ABS}/${VENDOR_LIB}
+
+  # Push the test vendor library to the device.
+  echo "Pushing the test vendor library to device: $DEVICE"
+  adb push ${VENDOR_SYMBOLS_ABS}/${VENDOR_LIB} /vendor/lib
+
+  echo "Pushing controller properties."
+  adb push ${TEST_VENDOR_LIB_ABS}/data/${CONTROLLER_PROPERTIES} /etc/bluetooth/
+
+  echo "Pushing libevent."
+  adb push ${DEVICE_TARGET_ABS}/${DEVICE}/system/lib/libevent.so /system/lib/
+
+  echo "Pushing libchrome."
+  adb push ${DEVICE_TARGET_ABS}/${DEVICE}/system/lib/libchrome.so /system/lib/
+
+  # Clear logcat.
+  adb logcat -c
+
+  # Run logcat with filters.
+  adb logcat bt_btif:D bt_btif_core:D bt_hci:D bt_main:D bt_vendor:D \
+   bte_logmsg:D command_packet:D dual_mode_controller:D event_packet:D \
+   hci_transport:D hci_handler:D packet:D packet_stream:D \
+   test_channel_transport:D vendor_manager:D *:S
+fi
diff --git a/rtkbt/code/bt/vendor_libs/test_vendor_lib/scripts/test_channel.py b/rtkbt/code/bt/vendor_libs/test_vendor_lib/scripts/test_channel.py
new file mode 100755
index 0000000..cf470f9
--- /dev/null
+++ b/rtkbt/code/bt/vendor_libs/test_vendor_lib/scripts/test_channel.py
@@ -0,0 +1,247 @@
+#
+# Copyright 2015 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+"""Script for sending testing parameters and commands to a Bluetooth device.
+
+This script provides a simple shell interface for sending data at run-time to a
+Bluetooth device. It is intended to be used in tandem with the test vendor
+library project.
+
+Usage:
+  Option A: Script
+    1. Run build_and_run.sh in scripts/ with the --test-channel flag set and the
+    port to use for the test channel.
+  Option B: Manual
+    1. Choose a port to use for the test channel. Use 'adb forward tcp:<port>
+    tcp:<port>' to forward the port to the device.
+    2. In a separate shell, build and push the test vendor library to the device
+    using the script mentioned in option A (i.e. without the --test-channel flag
+    set).
+    3. Once logcat has started, turn Bluetooth on from the device.
+    4. Run this program, in the shell from step 1,  the port, also from step 1,
+    as arguments.
+"""
+
+#!/usr/bin/env python
+
+import cmd
+import random
+import socket
+import string
+import struct
+import sys
+
+DEVICE_NAME_LENGTH = 6
+DEVICE_ADDRESS_LENGTH = 6
+
+# Used to generate fake device names and addresses during discovery.
+def generate_random_name():
+  return ''.join(random.SystemRandom().choice(string.ascii_uppercase + \
+    string.digits) for _ in range(DEVICE_NAME_LENGTH))
+
+def generate_random_address():
+  return ''.join(random.SystemRandom().choice(string.digits) for _ in \
+    range(DEVICE_ADDRESS_LENGTH))
+
+class Connection(object):
+  """Simple wrapper class for a socket object.
+
+  Attributes:
+    socket: The underlying socket created for the specified address and port.
+  """
+
+  def __init__(self, port):
+    self._socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+    self._socket.connect(('localhost', port))
+
+  def close(self):
+    self._socket.close()
+
+  def send(self, data):
+    self._socket.sendall(data)
+
+class TestChannel(object):
+  """Checks outgoing commands and sends them once verified.
+
+  Attributes:
+    connection: The connection to the test vendor library that commands are sent
+    on.
+  """
+
+  def __init__(self, port):
+    self._connection = Connection(port)
+    self._discovered_devices = DeviceManager()
+
+  def discover_new_device(self, name=None, address=None):
+    device = Device(name, address)
+    self._discovered_devices.add_device(device)
+    return device
+
+  def close(self):
+    self._connection.close()
+
+  def send_command(self, name, args):
+    name_size = len(name)
+    args_size = len(args)
+    self.lint_command(name, args, name_size, args_size)
+    encoded_name = chr(name_size) + name
+    encoded_args = chr(args_size) + ''.join(chr(len(arg)) + arg for arg in args)
+    command = encoded_name + encoded_args
+    self._connection.send(command)
+
+  def lint_command(self, name, args, name_size, args_size):
+    assert name_size == len(name) and args_size == len(args)
+    try:
+      name.encode('utf-8')
+      for arg in args:
+        arg.encode('utf-8')
+    except UnicodeError:
+      print 'Unrecognized characters.'
+      raise
+    if name_size > 255 or args_size > 255:
+      raise ValueError  # Size must be encodable in one octet.
+    for arg in args:
+      if len(arg) > 255:
+        raise ValueError  # Size must be encodable in one octet.
+
+class DeviceManager(object):
+  """Maintains the active fake devices that have been "discovered".
+
+  Attributes:
+    device_list: Maps device addresses (keys) to devices (values).
+  """
+
+  def __init__(self):
+    self.device_list = {}
+
+  def add_device(self, device):
+    self.device_list[device.get_address()] = device
+
+class Device(object):
+  """A fake device to be returned in inquiry and scan results. Note that if an
+  explicit name or address is not provided, a random string of characters
+  is used.
+
+  Attributes:
+    name: The device name for use in extended results.
+    address: The BD address of the device.
+  """
+
+  def __init__(self, name=None, address=None):
+    # TODO(dennischeng): Generate device properties more robustly.
+    self._name = generate_random_name() if name is None else name
+    self._address = generate_random_address() if address is None else address
+
+  def get_name(self):
+    return self._name
+
+  def get_address(self):
+    return self._address
+
+class TestChannelShell(cmd.Cmd):
+  """Shell for sending test channel data to controller.
+
+  Manages the test channel to the controller and defines a set of commands the
+  user can send to the controller as well. These commands are processed parallel
+  to commands sent from the device stack and used to provide additional
+  debugging/testing capabilities.
+
+  Attributes:
+    test_channel: The communication channel to send data to the controller.
+  """
+
+  def __init__(self, test_channel):
+    print 'Type \'help\' for more information.'
+    cmd.Cmd.__init__(self)
+    self._test_channel = test_channel
+
+  def do_clear(self, args):
+    """
+    Arguments: None.
+    Resets the controller to its original, unmodified state.
+    """
+    self._test_channel.send_command('CLEAR', [])
+
+  def do_clear_event_delay(self, args):
+    """
+    Arguments: None.
+    Clears the response delay set by set_event_delay.
+    """
+    self._test_channel.send_command('CLEAR_EVENT_DELAY', args.split())
+
+  def do_discover(self, args):
+    """
+    Arguments: name_1 name_2 ...
+    Sends an inquiry result for named device(s). If no names are provided, a
+    random name is used instead.
+    """
+    if len(args) == 0:
+      args = generate_random_name()
+    device_list = [self._test_channel.discover_new_device(arg) for arg in \
+                   args.split()]
+    device_names_and_addresses = []
+    for device in device_list:
+      device_names_and_addresses.append(device.get_name())
+      device_names_and_addresses.append(device.get_address())
+    self._test_channel.send_command('DISCOVER', device_names_and_addresses)
+
+  def do_set_event_delay(self, args):
+    """
+    Arguments: interval_in_ms
+    Sets the response delay for all event packets sent from the controller back
+    to the HCI.
+    """
+    self._test_channel.send_command('SET_EVENT_DELAY', args.split())
+
+  def do_timeout_all(self, args):
+    """
+    Arguments: None.
+    Causes all HCI commands to timeout.
+    """
+    self._test_channel.send_command('TIMEOUT_ALL', [])
+
+  def do_quit(self, args):
+    """
+    Arguments: None.
+    Exits the test channel.
+    """
+    self._test_channel.send_command('CLOSE_TEST_CHANNEL', [])
+    self._test_channel.close()
+    print 'Goodbye.'
+    return True
+
+def main(argv):
+  if len(argv) != 2:
+    print 'Usage: python test_channel.py [port]'
+    return
+  try:
+    port = int(argv[1])
+  except ValueError:
+    print 'Error parsing port.'
+  else:
+    try:
+      test_channel = TestChannel(port)
+    except socket.error, e:
+      print 'Error connecting to socket: %s' % e
+    except:
+      print 'Error creating test channel (check argument).'
+    else:
+      test_channel_shell = TestChannelShell(test_channel)
+      test_channel_shell.prompt = '$ '
+      test_channel_shell.cmdloop()
+
+if __name__ == '__main__':
+  main(sys.argv)
diff --git a/rtkbt/code/bt/vendor_libs/test_vendor_lib/src/bt_vendor.cc b/rtkbt/code/bt/vendor_libs/test_vendor_lib/src/bt_vendor.cc
new file mode 100755
index 0000000..81538ac
--- /dev/null
+++ b/rtkbt/code/bt/vendor_libs/test_vendor_lib/src/bt_vendor.cc
@@ -0,0 +1,107 @@
+//
+// Copyright 2015 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#define LOG_TAG "bt_vendor"
+
+#include "vendor_manager.h"
+
+#include "base/logging.h"
+
+extern "C" {
+#include "osi/include/log.h"
+
+#include <unistd.h>
+}  // extern "C"
+
+namespace test_vendor_lib {
+
+// Initializes vendor manager for test controller. |p_cb| are the callbacks to
+// be in TestVendorOp(). |local_bdaddr| points to the address of the Bluetooth
+// device. Returns 0 on success, -1 on error.
+static int TestVendorInitialize(const bt_vendor_callbacks_t* p_cb,
+                                unsigned char* /* local_bdaddr */) {
+  LOG_INFO(LOG_TAG, "Initializing test controller.");
+  CHECK(p_cb);
+
+  VendorManager::Initialize();
+  VendorManager* manager = VendorManager::Get();
+  manager->SetVendorCallbacks(*(const_cast<bt_vendor_callbacks_t*>(p_cb)));
+  return manager->Run() ? 0 : -1;
+}
+
+// Vendor specific operations. |opcode| is the opcode for Bluedroid's vendor op
+// definitions. |param| points to operation specific arguments. Return value is
+// dependent on the operation invoked, or -1 on error.
+static int TestVendorOp(bt_vendor_opcode_t opcode, void* param) {
+  LOG_INFO(LOG_TAG, "Opcode received in vendor library: %d", opcode);
+
+  VendorManager* manager = VendorManager::Get();
+  CHECK(manager);
+
+  switch (opcode) {
+    case BT_VND_OP_POWER_CTRL: {
+      LOG_INFO(LOG_TAG, "Doing op: BT_VND_OP_POWER_CTRL");
+      int* state = static_cast<int*>(param);
+      if (*state == BT_VND_PWR_OFF)
+        LOG_INFO(LOG_TAG, "Turning Bluetooth off.");
+      else if (*state == BT_VND_PWR_ON)
+        LOG_INFO(LOG_TAG, "Turning Bluetooth on.");
+      return 0;
+    }
+
+    // Give the HCI its fd to communicate with the HciTransport.
+    case BT_VND_OP_USERIAL_OPEN: {
+      LOG_INFO(LOG_TAG, "Doing op: BT_VND_OP_USERIAL_OPEN");
+      int* fd_list = static_cast<int*>(param);
+      fd_list[0] = manager->GetHciFd();
+      LOG_INFO(LOG_TAG, "Setting HCI's fd to: %d", fd_list[0]);
+      return 1;
+    }
+
+    // Close the HCI's file descriptor.
+    case BT_VND_OP_USERIAL_CLOSE:
+      LOG_INFO(LOG_TAG, "Doing op: BT_VND_OP_USERIAL_CLOSE");
+      LOG_INFO(LOG_TAG, "Closing HCI's fd (fd: %d)", manager->GetHciFd());
+      manager->CloseHciFd();
+      return 1;
+
+    case BT_VND_OP_FW_CFG:
+      LOG_INFO(LOG_TAG, "Unsupported op: BT_VND_OP_FW_CFG");
+      manager->GetVendorCallbacks().fwcfg_cb(BT_VND_OP_RESULT_FAIL);
+      return -1;
+
+    default:
+      LOG_INFO(LOG_TAG, "Op not recognized.");
+      return -1;
+  }
+  return 0;
+}
+
+// Closes the vendor interface and cleans up the global vendor manager object.
+static void TestVendorCleanUp(void) {
+  LOG_INFO(LOG_TAG, "Cleaning up vendor library.");
+  VendorManager::CleanUp();
+}
+
+}  // namespace test_vendor_lib
+
+// Entry point of DLib.
+const bt_vendor_interface_t BLUETOOTH_VENDOR_LIB_INTERFACE = {
+  sizeof(bt_vendor_interface_t),
+  test_vendor_lib::TestVendorInitialize,
+  test_vendor_lib::TestVendorOp,
+  test_vendor_lib::TestVendorCleanUp
+};
diff --git a/rtkbt/code/bt/vendor_libs/test_vendor_lib/src/command_packet.cc b/rtkbt/code/bt/vendor_libs/test_vendor_lib/src/command_packet.cc
new file mode 100755
index 0000000..7197233
--- /dev/null
+++ b/rtkbt/code/bt/vendor_libs/test_vendor_lib/src/command_packet.cc
@@ -0,0 +1,43 @@
+//
+// Copyright 2015 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#define LOG_TAG "command_packet"
+
+#include "vendor_libs/test_vendor_lib/include/command_packet.h"
+
+extern "C" {
+#include "hci/include/hci_hal.h"
+#include "osi/include/log.h"
+#include "stack/include/hcidefs.h"
+}  // extern "C"
+
+namespace test_vendor_lib {
+
+CommandPacket::CommandPacket() : Packet(DATA_TYPE_COMMAND) {}
+
+uint16_t CommandPacket::GetOpcode() const {
+  return 0 | (GetHeader()[0] | (GetHeader()[1] << 8));
+}
+
+uint8_t CommandPacket::GetOGF() const {
+  return HCI_OGF(GetOpcode());
+}
+
+uint16_t CommandPacket::GetOCF() const {
+  return HCI_OCF(GetOpcode());
+}
+
+}  // namespace test_vendor_lib
diff --git a/rtkbt/code/bt/vendor_libs/test_vendor_lib/src/dual_mode_controller.cc b/rtkbt/code/bt/vendor_libs/test_vendor_lib/src/dual_mode_controller.cc
new file mode 100755
index 0000000..c21d9a5
--- /dev/null
+++ b/rtkbt/code/bt/vendor_libs/test_vendor_lib/src/dual_mode_controller.cc
@@ -0,0 +1,561 @@
+//
+// Copyright 2015 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#define LOG_TAG "dual_mode_controller"
+
+#include "vendor_libs/test_vendor_lib/include/dual_mode_controller.h"
+
+#include "base/logging.h"
+#include "base/files/file_util.h"
+#include "base/json/json_reader.h"
+#include "base/values.h"
+#include "vendor_libs/test_vendor_lib/include/event_packet.h"
+#include "vendor_libs/test_vendor_lib/include/hci_transport.h"
+
+extern "C" {
+#include "stack/include/hcidefs.h"
+#include "osi/include/log.h"
+}  // extern "C"
+
+namespace {
+
+// Included in certain events to indicate success (specific to the event
+// context).
+const uint8_t kSuccessStatus = 0;
+
+// The default number encoded in event packets to indicate to the HCI how many
+// command packets it can send to the controller.
+const uint8_t kNumHciCommandPackets = 1;
+
+// The location of the config file loaded to populate controller attributes.
+const std::string kControllerPropertiesFile =
+    "/etc/bluetooth/controller_properties.json";
+
+// Inquiry modes for specifiying inquiry result formats.
+const uint8_t kStandardInquiry = 0x00;
+const uint8_t kRssiInquiry = 0x01;
+const uint8_t kExtendedOrRssiInquiry = 0x02;
+
+// The bd address of another (fake) device.
+const std::vector<uint8_t> kOtherDeviceBdAddress = {6, 5, 4, 3, 2, 1};
+
+// Fake inquiry response for a fake device.
+const std::vector<uint8_t> kPageScanRepetitionMode = {0};
+const std::vector<uint8_t> kPageScanPeriodMode = {0};
+const std::vector<uint8_t> kPageScanMode = {0};
+const std::vector<uint8_t> kClassOfDevice = {1, 2, 3};
+const std::vector<uint8_t> kClockOffset = {1, 2};
+
+void LogCommand(const char* command) {
+  LOG_INFO(LOG_TAG, "Controller performing command: %s", command);
+}
+
+// Functions used by JSONValueConverter to read stringified JSON into Properties
+// object.
+bool ParseUint8t(const base::StringPiece& value, uint8_t* field) {
+  *field = std::stoi(value.as_string());
+  return true;
+}
+
+bool ParseUint16t(const base::StringPiece& value, uint16_t* field) {
+  *field = std::stoi(value.as_string());
+  return true;
+}
+
+bool ParseUint8tVector(const base::StringPiece& value,
+                              std::vector<uint8_t>* field) {
+  for (char& c : value.as_string())
+    field->push_back(c - '0');
+  return true;
+}
+
+}  // namespace
+
+namespace test_vendor_lib {
+
+void DualModeController::SendCommandComplete(
+    uint16_t command_opcode,
+    const std::vector<uint8_t>& return_parameters) const {
+  std::unique_ptr<EventPacket> command_complete =
+      EventPacket::CreateCommandCompleteEvent(
+          kNumHciCommandPackets, command_opcode, return_parameters);
+  send_event_(std::move(command_complete));
+}
+
+void DualModeController::SendCommandCompleteSuccess(
+    uint16_t command_opcode) const {
+  SendCommandComplete(command_opcode, {kSuccessStatus});
+}
+
+void DualModeController::SendCommandStatus(uint8_t status,
+                                           uint16_t command_opcode) const {
+  std::unique_ptr<EventPacket> command_status =
+      EventPacket::CreateCommandStatusEvent(status, kNumHciCommandPackets,
+                                            command_opcode);
+  send_event_(std::move(command_status));
+}
+
+void DualModeController::SendCommandStatusSuccess(
+    uint16_t command_opcode) const {
+  SendCommandStatus(kSuccessStatus, command_opcode);
+}
+
+void DualModeController::SendInquiryResult() const {
+  std::unique_ptr<EventPacket> inquiry_result =
+      EventPacket::CreateInquiryResultEvent(
+          1, kOtherDeviceBdAddress, kPageScanRepetitionMode,
+          kPageScanPeriodMode, kPageScanMode, kClassOfDevice, kClockOffset);
+  send_event_(std::move(inquiry_result));
+}
+
+void DualModeController::SendExtendedInquiryResult(
+    const std::string& name, const std::string& address) const {
+  std::vector<uint8_t> rssi = {0};
+  std::vector<uint8_t> extended_inquiry_data = {name.length() + 1, 0x09};
+  std::copy(name.begin(), name.end(),
+            std::back_inserter(extended_inquiry_data));
+  std::vector<uint8_t> bd_address(address.begin(), address.end());
+  // TODO(dennischeng): Use constants for parameter sizes, here and elsewhere.
+  while (extended_inquiry_data.size() < 240) {
+    extended_inquiry_data.push_back(0);
+  }
+  std::unique_ptr<EventPacket> extended_inquiry_result =
+      EventPacket::CreateExtendedInquiryResultEvent(
+          bd_address, kPageScanRepetitionMode, kPageScanPeriodMode,
+          kClassOfDevice, kClockOffset, rssi, extended_inquiry_data);
+  send_event_(std::move(extended_inquiry_result));
+}
+
+DualModeController::DualModeController()
+    : state_(kStandby),
+      test_channel_state_(kNone),
+      properties_(kControllerPropertiesFile) {
+#define SET_HANDLER(opcode, method) \
+  active_hci_commands_[opcode] =    \
+      std::bind(&DualModeController::method, this, std::placeholders::_1);
+  SET_HANDLER(HCI_RESET, HciReset);
+  SET_HANDLER(HCI_READ_BUFFER_SIZE, HciReadBufferSize);
+  SET_HANDLER(HCI_HOST_BUFFER_SIZE, HciHostBufferSize);
+  SET_HANDLER(HCI_READ_LOCAL_VERSION_INFO, HciReadLocalVersionInformation);
+  SET_HANDLER(HCI_READ_BD_ADDR, HciReadBdAddr);
+  SET_HANDLER(HCI_READ_LOCAL_SUPPORTED_CMDS, HciReadLocalSupportedCommands);
+  SET_HANDLER(HCI_READ_LOCAL_EXT_FEATURES, HciReadLocalExtendedFeatures);
+  SET_HANDLER(HCI_WRITE_SIMPLE_PAIRING_MODE, HciWriteSimplePairingMode);
+  SET_HANDLER(HCI_WRITE_LE_HOST_SUPPORT, HciWriteLeHostSupport);
+  SET_HANDLER(HCI_SET_EVENT_MASK, HciSetEventMask);
+  SET_HANDLER(HCI_WRITE_INQUIRY_MODE, HciWriteInquiryMode);
+  SET_HANDLER(HCI_WRITE_PAGESCAN_TYPE, HciWritePageScanType);
+  SET_HANDLER(HCI_WRITE_INQSCAN_TYPE, HciWriteInquiryScanType);
+  SET_HANDLER(HCI_WRITE_CLASS_OF_DEVICE, HciWriteClassOfDevice);
+  SET_HANDLER(HCI_WRITE_PAGE_TOUT, HciWritePageTimeout);
+  SET_HANDLER(HCI_WRITE_DEF_POLICY_SETTINGS, HciWriteDefaultLinkPolicySettings);
+  SET_HANDLER(HCI_READ_LOCAL_NAME, HciReadLocalName);
+  SET_HANDLER(HCI_CHANGE_LOCAL_NAME, HciWriteLocalName);
+  SET_HANDLER(HCI_WRITE_EXT_INQ_RESPONSE, HciWriteExtendedInquiryResponse);
+  SET_HANDLER(HCI_WRITE_VOICE_SETTINGS, HciWriteVoiceSetting);
+  SET_HANDLER(HCI_WRITE_CURRENT_IAC_LAP, HciWriteCurrentIacLap);
+  SET_HANDLER(HCI_WRITE_INQUIRYSCAN_CFG, HciWriteInquiryScanActivity);
+  SET_HANDLER(HCI_WRITE_SCAN_ENABLE, HciWriteScanEnable);
+  SET_HANDLER(HCI_SET_EVENT_FILTER, HciSetEventFilter);
+  SET_HANDLER(HCI_INQUIRY, HciInquiry);
+  SET_HANDLER(HCI_INQUIRY_CANCEL, HciInquiryCancel);
+  SET_HANDLER(HCI_DELETE_STORED_LINK_KEY, HciDeleteStoredLinkKey);
+  SET_HANDLER(HCI_RMT_NAME_REQUEST, HciRemoteNameRequest);
+#undef SET_HANDLER
+
+#define SET_TEST_HANDLER(command_name, method)  \
+  active_test_channel_commands_[command_name] = \
+      std::bind(&DualModeController::method, this, std::placeholders::_1);
+  SET_TEST_HANDLER("CLEAR", TestChannelClear);
+  SET_TEST_HANDLER("CLEAR_EVENT_DELAY", TestChannelClearEventDelay);
+  SET_TEST_HANDLER("DISCOVER", TestChannelDiscover);
+  SET_TEST_HANDLER("SET_EVENT_DELAY", TestChannelSetEventDelay);
+  SET_TEST_HANDLER("TIMEOUT_ALL", TestChannelTimeoutAll);
+#undef SET_TEST_HANDLER
+}
+
+void DualModeController::RegisterHandlersWithHciTransport(
+    HciTransport& transport) {
+  transport.RegisterCommandHandler(std::bind(&DualModeController::HandleCommand,
+                                             this, std::placeholders::_1));
+}
+
+void DualModeController::RegisterHandlersWithTestChannelTransport(
+    TestChannelTransport& transport) {
+  transport.RegisterCommandHandler(
+      std::bind(&DualModeController::HandleTestChannelCommand, this,
+                std::placeholders::_1, std::placeholders::_2));
+}
+
+void DualModeController::HandleTestChannelCommand(
+    const std::string& name, const std::vector<std::string>& args) {
+  if (active_test_channel_commands_.count(name) == 0)
+    return;
+  active_test_channel_commands_[name](args);
+}
+
+void DualModeController::HandleCommand(
+    std::unique_ptr<CommandPacket> command_packet) {
+  uint16_t opcode = command_packet->GetOpcode();
+  LOG_INFO(LOG_TAG, "Command opcode: 0x%04X, OGF: 0x%04X, OCF: 0x%04X", opcode,
+           command_packet->GetOGF(), command_packet->GetOCF());
+
+  // The command hasn't been registered with the handler yet. There is nothing
+  // to do.
+  if (active_hci_commands_.count(opcode) == 0)
+    return;
+  else if (test_channel_state_ == kTimeoutAll)
+    return;
+  active_hci_commands_[opcode](command_packet->GetPayload());
+}
+
+void DualModeController::RegisterEventChannel(
+    std::function<void(std::unique_ptr<EventPacket>)> callback) {
+  send_event_ = callback;
+}
+
+void DualModeController::RegisterDelayedEventChannel(
+    std::function<void(std::unique_ptr<EventPacket>, base::TimeDelta)>
+        callback) {
+  send_delayed_event_ = callback;
+  SetEventDelay(0);
+}
+
+void DualModeController::SetEventDelay(int64_t delay) {
+  if (delay < 0)
+    delay = 0;
+  send_event_ = std::bind(send_delayed_event_, std::placeholders::_1,
+                          base::TimeDelta::FromMilliseconds(delay));
+}
+
+void DualModeController::TestChannelClear(
+    const std::vector<std::string>& args) {
+  LogCommand("TestChannel Clear");
+  test_channel_state_ = kNone;
+  SetEventDelay(0);
+}
+
+void DualModeController::TestChannelDiscover(
+    const std::vector<std::string>& args) {
+  LogCommand("TestChannel Discover");
+  for (size_t i = 0; i < args.size()-1; i+=2)
+    SendExtendedInquiryResult(args[i], args[i+1]);
+}
+
+void DualModeController::TestChannelTimeoutAll(
+    const std::vector<std::string>& args) {
+  LogCommand("TestChannel Timeout All");
+  test_channel_state_ = kTimeoutAll;
+}
+
+void DualModeController::TestChannelSetEventDelay(
+    const std::vector<std::string>& args) {
+  LogCommand("TestChannel Set Event Delay");
+  test_channel_state_ = kDelayedResponse;
+  SetEventDelay(std::stoi(args[0]));
+}
+
+void DualModeController::TestChannelClearEventDelay(
+    const std::vector<std::string>& args) {
+  LogCommand("TestChannel Clear Event Delay");
+  test_channel_state_ = kNone;
+  SetEventDelay(0);
+}
+
+void DualModeController::HciReset(const std::vector<uint8_t>& /* args */) {
+  LogCommand("Reset");
+  state_ = kStandby;
+  SendCommandCompleteSuccess(HCI_RESET);
+}
+
+void DualModeController::HciReadBufferSize(
+    const std::vector<uint8_t>& /* args */) {
+  LogCommand("Read Buffer Size");
+  SendCommandComplete(HCI_READ_BUFFER_SIZE, properties_.GetBufferSize());
+}
+
+void DualModeController::HciHostBufferSize(
+    const std::vector<uint8_t>& /* args */) {
+  LogCommand("Host Buffer Size");
+  SendCommandCompleteSuccess(HCI_HOST_BUFFER_SIZE);
+}
+
+void DualModeController::HciReadLocalVersionInformation(
+                 const std::vector<uint8_t>& /* args */) {
+  LogCommand("Read Local Version Information");
+  SendCommandComplete(HCI_READ_LOCAL_VERSION_INFO,
+                      properties_.GetLocalVersionInformation());
+}
+
+void DualModeController::HciReadBdAddr(const std::vector<uint8_t>& /* args */) {
+  LogCommand("Read Bd Addr");
+  std::vector<uint8_t> bd_address_with_status = properties_.GetBdAddress();
+  bd_address_with_status.insert(bd_address_with_status.begin(),
+                                kSuccessStatus);
+  SendCommandComplete(HCI_READ_BD_ADDR, bd_address_with_status);
+}
+
+void DualModeController::HciReadLocalSupportedCommands(
+    const std::vector<uint8_t>& /* args */) {
+  LogCommand("Read Local Supported Commands");
+  SendCommandComplete(HCI_READ_LOCAL_SUPPORTED_CMDS,
+                      properties_.GetLocalSupportedCommands());
+}
+
+void DualModeController::HciReadLocalExtendedFeatures(
+    const std::vector<uint8_t>& args) {
+  LogCommand("Read Local Extended Features");
+  SendCommandComplete(HCI_READ_LOCAL_EXT_FEATURES,
+                      properties_.GetLocalExtendedFeatures(args[0]));
+}
+
+void DualModeController::HciWriteSimplePairingMode(
+    const std::vector<uint8_t>& /* args */) {
+  LogCommand("Write Simple Pairing Mode");
+  SendCommandCompleteSuccess(HCI_WRITE_SIMPLE_PAIRING_MODE);
+}
+
+void DualModeController::HciWriteLeHostSupport(
+    const std::vector<uint8_t>& /* args */) {
+  LogCommand("Write Le Host Support");
+  SendCommandCompleteSuccess(HCI_WRITE_LE_HOST_SUPPORT);
+}
+
+void DualModeController::HciSetEventMask(
+    const std::vector<uint8_t>& /* args */) {
+  LogCommand("Set Event Mask");
+  SendCommandCompleteSuccess(HCI_SET_EVENT_MASK);
+}
+
+void DualModeController::HciWriteInquiryMode(const std::vector<uint8_t>& args) {
+  LogCommand("Write Inquiry Mode");
+  CHECK(args.size() == 1);
+  inquiry_mode_ = args[0];
+  SendCommandCompleteSuccess(HCI_WRITE_INQUIRY_MODE);
+}
+
+void DualModeController::HciWritePageScanType(
+    const std::vector<uint8_t>& /* args */) {
+  LogCommand("Write Page Scan Type");
+  SendCommandCompleteSuccess(HCI_WRITE_PAGESCAN_TYPE);
+}
+
+void DualModeController::HciWriteInquiryScanType(
+    const std::vector<uint8_t>& /* args */) {
+  LogCommand("Write Inquiry Scan Type");
+  SendCommandCompleteSuccess(HCI_WRITE_INQSCAN_TYPE);
+}
+
+void DualModeController::HciWriteClassOfDevice(
+    const std::vector<uint8_t>& /* args */) {
+  LogCommand("Write Class Of Device");
+  SendCommandCompleteSuccess(HCI_WRITE_CLASS_OF_DEVICE);
+}
+
+void DualModeController::HciWritePageTimeout(
+    const std::vector<uint8_t>& /* args */) {
+  LogCommand("Write Page Timeout");
+  SendCommandCompleteSuccess(HCI_WRITE_PAGE_TOUT);
+}
+
+void DualModeController::HciWriteDefaultLinkPolicySettings(
+    const std::vector<uint8_t>& /* args */) {
+  LogCommand("Write Default Link Policy Settings");
+  SendCommandCompleteSuccess(HCI_WRITE_DEF_POLICY_SETTINGS);
+}
+
+void DualModeController::HciReadLocalName(
+    const std::vector<uint8_t>& /* args */) {
+  LogCommand("Get Local Name");
+  SendCommandComplete(HCI_READ_LOCAL_NAME, properties_.GetLocalName());
+}
+
+void DualModeController::HciWriteLocalName(
+    const std::vector<uint8_t>& /* args */) {
+  LogCommand("Write Local Name");
+  SendCommandCompleteSuccess(HCI_CHANGE_LOCAL_NAME);
+}
+
+void DualModeController::HciWriteExtendedInquiryResponse(
+    const std::vector<uint8_t>& /* args */) {
+  LogCommand("Write Extended Inquiry Response");
+  SendCommandCompleteSuccess(HCI_WRITE_EXT_INQ_RESPONSE);
+}
+
+void DualModeController::HciWriteVoiceSetting(
+    const std::vector<uint8_t>& /* args */) {
+  LogCommand("Write Voice Setting");
+  SendCommandCompleteSuccess(HCI_WRITE_VOICE_SETTINGS);
+}
+
+void DualModeController::HciWriteCurrentIacLap(
+    const std::vector<uint8_t>& /* args */) {
+  LogCommand("Write Current IAC LAP");
+  SendCommandCompleteSuccess(HCI_WRITE_CURRENT_IAC_LAP);
+}
+
+void DualModeController::HciWriteInquiryScanActivity(
+    const std::vector<uint8_t>& /* args */) {
+  LogCommand("Write Inquiry Scan Activity");
+  SendCommandCompleteSuccess(HCI_WRITE_INQUIRYSCAN_CFG);
+}
+
+void DualModeController::HciWriteScanEnable(
+    const std::vector<uint8_t>& /* args */) {
+  LogCommand("Write Scan Enable");
+  SendCommandCompleteSuccess(HCI_WRITE_SCAN_ENABLE);
+}
+
+void DualModeController::HciSetEventFilter(
+    const std::vector<uint8_t>& /* args */) {
+  LogCommand("Set Event Filter");
+  SendCommandCompleteSuccess(HCI_SET_EVENT_FILTER);
+}
+
+void DualModeController::HciInquiry(const std::vector<uint8_t>& /* args */) {
+  LogCommand("Inquiry");
+  state_ = kInquiry;
+  SendCommandStatusSuccess(HCI_INQUIRY);
+  switch (inquiry_mode_) {
+    case (kStandardInquiry):
+      SendInquiryResult();
+      break;
+
+    case (kRssiInquiry):
+      LOG_INFO(LOG_TAG, "RSSI Inquiry Mode currently not supported.");
+      break;
+
+    case (kExtendedOrRssiInquiry):
+      SendExtendedInquiryResult("FooBar", "123456");
+      break;
+  }
+}
+
+void DualModeController::HciInquiryCancel(
+    const std::vector<uint8_t>& /* args */) {
+  LogCommand("Inquiry Cancel");
+  CHECK(state_ == kInquiry);
+  state_ = kStandby;
+  SendCommandCompleteSuccess(HCI_INQUIRY_CANCEL);
+}
+
+void DualModeController::HciDeleteStoredLinkKey(
+    const std::vector<uint8_t>& args) {
+  LogCommand("Delete Stored Link Key");
+  /* Check the last octect in |args|. If it is 0, delete only the link key for
+   * the given BD_ADDR. If is is 1, delete all stored link keys. */
+  SendCommandComplete(HCI_DELETE_STORED_LINK_KEY, {1});
+}
+
+void DualModeController::HciRemoteNameRequest(
+    const std::vector<uint8_t>& args) {
+  LogCommand("Remote Name Request");
+  SendCommandStatusSuccess(HCI_RMT_NAME_REQUEST);
+}
+
+DualModeController::Properties::Properties(const std::string& file_name)
+    : local_supported_commands_size_(64), local_name_size_(248) {
+  std::string properties_raw;
+  if (!base::ReadFileToString(base::FilePath(file_name), &properties_raw))
+    LOG_INFO(LOG_TAG, "Error reading controller properties from file.");
+
+  scoped_ptr<base::Value> properties_value_ptr =
+      base::JSONReader::Read(properties_raw);
+  if (properties_value_ptr.get() == nullptr)
+    LOG_INFO(LOG_TAG,
+             "Error controller properties may consist of ill-formed JSON.");
+
+  // Get the underlying base::Value object, which is of type
+  // base::Value::TYPE_DICTIONARY, and read it into member variables.
+  base::Value& properties_dictionary = *(properties_value_ptr.get());
+  base::JSONValueConverter<DualModeController::Properties> converter;
+
+  if (!converter.Convert(properties_dictionary, this))
+    LOG_INFO(LOG_TAG,
+             "Error converting JSON properties into Properties object.");
+}
+
+const std::vector<uint8_t> DualModeController::Properties::GetBufferSize() {
+  return std::vector<uint8_t>(
+      {kSuccessStatus, acl_data_packet_size_, acl_data_packet_size_ >> 8,
+       sco_data_packet_size_, num_acl_data_packets_, num_acl_data_packets_ >> 8,
+       num_sco_data_packets_, num_sco_data_packets_ >> 8});
+}
+
+const std::vector<uint8_t>
+DualModeController::Properties::GetLocalVersionInformation() {
+  return std::vector<uint8_t>({kSuccessStatus, version_, revision_,
+                               revision_ >> 8, lmp_pal_version_,
+                               manufacturer_name_, manufacturer_name_ >> 8,
+                               lmp_pal_subversion_, lmp_pal_subversion_ >> 8});
+}
+
+const std::vector<uint8_t> DualModeController::Properties::GetBdAddress() {
+  return bd_address_;
+}
+
+const std::vector<uint8_t>
+DualModeController::Properties::GetLocalExtendedFeatures(uint8_t page_number) {
+  return std::vector<uint8_t>({kSuccessStatus, page_number,
+                               maximum_page_number_, 0xFF, 0xFF, 0xFF, 0xFF,
+                               0xFF, 0xFF, 0xFF, 0xFF});
+}
+
+const std::vector<uint8_t>
+DualModeController::Properties::GetLocalSupportedCommands() {
+  std::vector<uint8_t> local_supported_commands;
+  local_supported_commands.push_back(kSuccessStatus);
+  for (uint8_t i = 0; i < local_supported_commands_size_; ++i)
+    local_supported_commands.push_back(0xFF);
+  return local_supported_commands;
+}
+
+const std::vector<uint8_t> DualModeController::Properties::GetLocalName() {
+  std::vector<uint8_t> local_name;
+  local_name.push_back(kSuccessStatus);
+  for (uint8_t i = 0; i < local_name_size_; ++i)
+    local_name.push_back(0xFF);
+  return local_name;
+}
+
+// static
+void DualModeController::Properties::RegisterJSONConverter(
+    base::JSONValueConverter<DualModeController::Properties>* converter) {
+  // TODO(dennischeng): Use RegisterIntField() here?
+#define REGISTER_UINT8_T(field_name, field) \
+  converter->RegisterCustomField<uint8_t>(  \
+      field_name, &DualModeController::Properties::field, &ParseUint8t);
+#define REGISTER_UINT16_T(field_name, field) \
+  converter->RegisterCustomField<uint16_t>(  \
+      field_name, &DualModeController::Properties::field, &ParseUint16t);
+  REGISTER_UINT16_T("AclDataPacketSize", acl_data_packet_size_);
+  REGISTER_UINT8_T("ScoDataPacketSize", sco_data_packet_size_);
+  REGISTER_UINT16_T("NumAclDataPackets", num_acl_data_packets_);
+  REGISTER_UINT16_T("NumScoDataPackets", num_sco_data_packets_);
+  REGISTER_UINT8_T("Version", version_);
+  REGISTER_UINT16_T("Revision", revision_);
+  REGISTER_UINT8_T("LmpPalVersion", lmp_pal_version_);
+  REGISTER_UINT16_T("ManufacturerName", manufacturer_name_);
+  REGISTER_UINT16_T("LmpPalSubversion", lmp_pal_subversion_);
+  REGISTER_UINT8_T("MaximumPageNumber", maximum_page_number_);
+  converter->RegisterCustomField<std::vector<uint8_t>>(
+      "BdAddress", &DualModeController::Properties::bd_address_,
+      &ParseUint8tVector);
+#undef REGISTER_UINT8_T
+#undef REGISTER_UINT16_T
+}
+
+}  // namespace test_vendor_lib
diff --git a/rtkbt/code/bt/vendor_libs/test_vendor_lib/src/event_packet.cc b/rtkbt/code/bt/vendor_libs/test_vendor_lib/src/event_packet.cc
new file mode 100755
index 0000000..d003bb1
--- /dev/null
+++ b/rtkbt/code/bt/vendor_libs/test_vendor_lib/src/event_packet.cc
@@ -0,0 +1,131 @@
+//
+// Copyright 2015 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#define LOG_TAG "event_packet"
+
+#define VECTOR_COPY_TO_END(source, destination) \
+  std::copy(source.begin(), source.end(), std::back_inserter(destination));
+
+#include "vendor_libs/test_vendor_lib/include/event_packet.h"
+
+extern "C" {
+#include "osi/include/log.h"
+#include "stack/include/hcidefs.h"
+}  // extern "C"
+
+namespace test_vendor_lib {
+
+EventPacket::EventPacket(uint8_t event_code,
+                         const std::vector<uint8_t>& payload)
+    : Packet(DATA_TYPE_EVENT) {
+  Encode({event_code, static_cast<uint8_t>(payload.size())}, payload);
+}
+
+uint8_t EventPacket::GetEventCode() const {
+  return GetHeader()[0];
+}
+
+// static
+std::unique_ptr<EventPacket> EventPacket::CreateCommandCompleteEvent(
+    uint8_t num_hci_command_packets, uint16_t command_opcode,
+    const std::vector<uint8_t>& event_return_parameters) {
+  size_t payload_size = sizeof(num_hci_command_packets) +
+                        sizeof(command_opcode) + event_return_parameters.size();
+
+  std::vector<uint8_t> payload;
+  payload.reserve(payload_size);
+  payload.push_back(num_hci_command_packets);
+  payload.push_back(command_opcode);
+  payload.push_back(command_opcode >> 8);
+  VECTOR_COPY_TO_END(event_return_parameters, payload);
+
+  return std::unique_ptr<EventPacket>(
+      new EventPacket(HCI_COMMAND_COMPLETE_EVT, payload));
+}
+
+// static
+std::unique_ptr<EventPacket> EventPacket::CreateCommandStatusEvent(
+    uint8_t status, uint8_t num_hci_command_packets, uint16_t command_opcode) {
+  size_t payload_size =
+      sizeof(status) + sizeof(num_hci_command_packets) + sizeof(command_opcode);
+
+  std::vector<uint8_t> payload;
+  payload.reserve(payload_size);
+  payload.push_back(status);
+  payload.push_back(num_hci_command_packets);
+  payload.push_back(command_opcode);
+  payload.push_back(command_opcode >> 8);
+
+  return std::unique_ptr<EventPacket>(
+      new EventPacket(HCI_COMMAND_STATUS_EVT, payload));
+}
+
+//static
+std::unique_ptr<EventPacket> EventPacket::CreateInquiryResultEvent(
+    uint8_t num_responses, const std::vector<uint8_t>& bd_addresses,
+    const std::vector<uint8_t>& page_scan_repetition_mode,
+    const std::vector<uint8_t>& page_scan_period_mode,
+    const std::vector<uint8_t>& page_scan_mode,
+    const std::vector<uint8_t>& class_of_device,
+    const std::vector<uint8_t>& clock_offset) {
+  size_t payload_size = sizeof(num_responses) + bd_addresses.size() +
+                        page_scan_repetition_mode.size() +
+                        page_scan_period_mode.size() + page_scan_mode.size() +
+                        class_of_device.size() + clock_offset.size();
+
+  std::vector<uint8_t> payload;
+  payload.reserve(payload_size);
+  payload.push_back(num_responses);
+  VECTOR_COPY_TO_END(bd_addresses, payload);
+  VECTOR_COPY_TO_END(page_scan_repetition_mode, payload);
+  VECTOR_COPY_TO_END(page_scan_mode, payload);
+  VECTOR_COPY_TO_END(class_of_device, payload);
+  VECTOR_COPY_TO_END(clock_offset, payload);
+
+  return std::unique_ptr<EventPacket>(
+      new EventPacket(HCI_INQUIRY_RESULT_EVT, payload));
+}
+
+//static
+std::unique_ptr<EventPacket> EventPacket::CreateExtendedInquiryResultEvent(
+    const std::vector<uint8_t>& bd_address,
+    const std::vector<uint8_t>& page_scan_repetition_mode,
+    const std::vector<uint8_t>& page_scan_period_mode,
+    const std::vector<uint8_t>& class_of_device,
+    const std::vector<uint8_t>& clock_offset,
+    const std::vector<uint8_t>& rssi,
+    const std::vector<uint8_t>& extended_inquiry_response) {
+  size_t payload_size =
+      1 + bd_address.size() + page_scan_repetition_mode.size() +
+      page_scan_period_mode.size() + class_of_device.size() +
+      clock_offset.size() + rssi.size() + extended_inquiry_response.size();
+
+  std::vector<uint8_t> payload;
+  payload.reserve(payload_size);
+  payload.push_back(1);  // Each extended inquiry result contains one device.
+  VECTOR_COPY_TO_END(bd_address, payload);
+  VECTOR_COPY_TO_END(page_scan_repetition_mode, payload);
+  VECTOR_COPY_TO_END(page_scan_period_mode, payload);
+  VECTOR_COPY_TO_END(class_of_device, payload);
+  VECTOR_COPY_TO_END(clock_offset, payload);
+  VECTOR_COPY_TO_END(rssi, payload);
+  VECTOR_COPY_TO_END(extended_inquiry_response, payload);
+
+  return std::unique_ptr<EventPacket>(
+      new EventPacket(HCI_EXTENDED_INQUIRY_RESULT_EVT, payload));
+}
+
+}  // namespace test_vendor_lib
diff --git a/rtkbt/code/bt/vendor_libs/test_vendor_lib/src/hci_transport.cc b/rtkbt/code/bt/vendor_libs/test_vendor_lib/src/hci_transport.cc
new file mode 100755
index 0000000..8e64f71
--- /dev/null
+++ b/rtkbt/code/bt/vendor_libs/test_vendor_lib/src/hci_transport.cc
@@ -0,0 +1,174 @@
+//
+// Copyright 2015 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#define LOG_TAG "hci_transport"
+
+#include "vendor_libs/test_vendor_lib/include/hci_transport.h"
+
+#include "base/logging.h"
+#include "base/bind.h"
+#include "base/thread_task_runner_handle.h"
+
+extern "C" {
+#include <sys/socket.h>
+
+#include "stack/include/hcidefs.h"
+#include "osi/include/log.h"
+}  // extern "C"
+
+namespace test_vendor_lib {
+
+HciTransport::HciTransport() : weak_ptr_factory_(this) {}
+
+void HciTransport::CloseHciFd() {
+  hci_fd_.reset(nullptr);
+}
+
+void HciTransport::CloseVendorFd() {
+  vendor_fd_.reset(nullptr);
+}
+
+int HciTransport::GetHciFd() const {
+  return hci_fd_->get();
+}
+
+int HciTransport::GetVendorFd() const {
+  return vendor_fd_->get();
+}
+
+bool HciTransport::SetUp() {
+  int socketpair_fds[2];
+  // TODO(dennischeng): Use SOCK_SEQPACKET here.
+  const int success = socketpair(AF_LOCAL, SOCK_STREAM, 0, socketpair_fds);
+  if (success < 0)
+    return false;
+  hci_fd_.reset(new base::ScopedFD(socketpair_fds[0]));
+  vendor_fd_.reset(new base::ScopedFD(socketpair_fds[1]));
+  return true;
+}
+
+void HciTransport::OnFileCanReadWithoutBlocking(int fd) {
+  CHECK(fd == GetVendorFd());
+  LOG_INFO(LOG_TAG, "Event ready in HciTransport on fd: %d.", fd);
+
+  const serial_data_type_t packet_type = packet_stream_.ReceivePacketType(fd);
+  switch (packet_type) {
+    case (DATA_TYPE_COMMAND): {
+      ReceiveReadyCommand();
+      break;
+    }
+
+    case (DATA_TYPE_ACL): {
+      LOG_INFO(LOG_TAG, "ACL data packets not currently supported.");
+      break;
+    }
+
+    case (DATA_TYPE_SCO): {
+      LOG_INFO(LOG_TAG, "SCO data packets not currently supported.");
+      break;
+    }
+
+    // TODO(dennischeng): Add debug level assert here.
+    default: {
+      LOG_INFO(LOG_TAG, "Error received an invalid packet type from the HCI.");
+      break;
+    }
+  }
+}
+
+void HciTransport::ReceiveReadyCommand() const {
+  std::unique_ptr<CommandPacket> command =
+      packet_stream_.ReceiveCommand(GetVendorFd());
+  LOG_INFO(LOG_TAG, "Received command packet.");
+  command_handler_(std::move(command));
+}
+
+void HciTransport::RegisterCommandHandler(
+    std::function<void(std::unique_ptr<CommandPacket>)> callback) {
+  command_handler_ = callback;
+}
+
+void HciTransport::OnFileCanWriteWithoutBlocking(int fd) {
+  CHECK(fd == GetVendorFd());
+  if (!outbound_events_.empty()) {
+    base::TimeTicks current_time = base::TimeTicks::Now();
+    auto it = outbound_events_.begin();
+    // Check outbound events for events that can be sent, i.e. events with a
+    // timestamp before the current time. Stop sending events when
+    // |packet_stream_| fails writing.
+    for (auto it = outbound_events_.begin(); it != outbound_events_.end();) {
+      if ((*it)->GetTimeStamp() > current_time) {
+        ++it;
+        continue;
+      }
+      if (!packet_stream_.SendEvent((*it)->GetEvent(), fd))
+        return;
+      it = outbound_events_.erase(it);
+    }
+  }
+}
+
+void HciTransport::AddEventToOutboundEvents(
+    std::unique_ptr<TimeStampedEvent> event) {
+  outbound_events_.push_back(std::move(event));
+}
+
+void HciTransport::PostEventResponse(std::unique_ptr<EventPacket> event) {
+  AddEventToOutboundEvents(
+      std::make_unique<TimeStampedEvent>(std::move(event)));
+}
+
+void HciTransport::PostDelayedEventResponse(std::unique_ptr<EventPacket> event,
+                                            base::TimeDelta delay) {
+  // TODO(dennischeng): When it becomes available for MessageLoopForIO, use the
+  // thread's task runner to post |PostEventResponse| as a delayed task, being
+  // sure to CHECK the appropriate task runner attributes using
+  // base::ThreadTaskRunnerHandle.
+
+  // The system does not support high resolution timing and the clock could be
+  // as coarse as ~15.6 ms so the event is sent without a delay to avoid
+  // inconsistent event responses.
+  if (!base::TimeTicks::IsHighResolution()) {
+    LOG_INFO(LOG_TAG,
+              "System does not support high resolution timing. Sending event "
+              "without delay.");
+    PostEventResponse(std::move(event));
+  }
+
+  LOG_INFO(LOG_TAG, "Posting event response with delay of %lld ms.",
+           delay.InMilliseconds());
+
+  AddEventToOutboundEvents(
+      std::make_unique<TimeStampedEvent>(std::move(event), delay));
+}
+
+HciTransport::TimeStampedEvent::TimeStampedEvent(
+    std::unique_ptr<EventPacket> event, base::TimeDelta delay)
+    : event_(std::move(event)), time_stamp_(base::TimeTicks::Now() + delay) {}
+
+HciTransport::TimeStampedEvent::TimeStampedEvent(
+    std::unique_ptr<EventPacket> event)
+    : event_(std::move(event)), time_stamp_(base::TimeTicks::UnixEpoch()) {}
+
+const base::TimeTicks& HciTransport::TimeStampedEvent::GetTimeStamp() const {
+  return time_stamp_;
+}
+
+const EventPacket& HciTransport::TimeStampedEvent::GetEvent() {
+  return *(event_.get());
+}
+
+}  // namespace test_vendor_lib
diff --git a/rtkbt/code/bt/vendor_libs/test_vendor_lib/src/packet.cc b/rtkbt/code/bt/vendor_libs/test_vendor_lib/src/packet.cc
new file mode 100755
index 0000000..4c27301
--- /dev/null
+++ b/rtkbt/code/bt/vendor_libs/test_vendor_lib/src/packet.cc
@@ -0,0 +1,69 @@
+//
+// Copyright 2015 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#define LOG_TAG "packet"
+
+#include "vendor_libs/test_vendor_lib/include/packet.h"
+
+#include "base/logging.h"
+
+#include <algorithm>
+
+extern "C" {
+#include "osi/include/log.h"
+}  // extern "C"
+
+namespace test_vendor_lib {
+
+Packet::Packet(serial_data_type_t type) : type_(type) {}
+
+bool Packet::Encode(const std::vector<uint8_t>& header,
+                    const std::vector<uint8_t>& payload) {
+  if (header.back() != payload.size())
+    return false;
+  header_ = header;
+  payload_ = payload;
+  return true;
+}
+
+const std::vector<uint8_t>& Packet::GetHeader() const {
+  // Every packet must have a header.
+  CHECK(GetHeaderSize() > 0);
+  return header_;
+}
+
+uint8_t Packet::GetHeaderSize() const {
+  return header_.size();
+}
+
+size_t Packet::GetPacketSize() const {
+  // Add one for the type octet.
+  return 1 + header_.size() + payload_.size();
+}
+
+const std::vector<uint8_t>& Packet::GetPayload() const {
+  return payload_;
+}
+
+uint8_t Packet::GetPayloadSize() const {
+  return payload_.size();
+}
+
+serial_data_type_t Packet::GetType() const {
+  return type_;
+}
+
+}  // namespace test_vendor_lib
diff --git a/rtkbt/code/bt/vendor_libs/test_vendor_lib/src/packet_stream.cc b/rtkbt/code/bt/vendor_libs/test_vendor_lib/src/packet_stream.cc
new file mode 100755
index 0000000..0eb768f
--- /dev/null
+++ b/rtkbt/code/bt/vendor_libs/test_vendor_lib/src/packet_stream.cc
@@ -0,0 +1,134 @@
+//
+// Copyright 2015 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#define LOG_TAG "packet_stream"
+
+#include "vendor_libs/test_vendor_lib/include/packet_stream.h"
+
+#include "base/logging.h"
+
+extern "C" {
+#include <errno.h>
+#include <unistd.h>
+
+#include "osi/include/log.h"
+}  // extern "C"
+
+namespace test_vendor_lib {
+
+std::unique_ptr<CommandPacket> PacketStream::ReceiveCommand(int fd) const {
+  std::vector<uint8_t> header;
+  std::vector<uint8_t> payload;
+
+  if (!ReceiveAll(header, CommandPacket::kCommandHeaderSize, fd)) {
+    LOG_ERROR(LOG_TAG, "Error: receiving command header.");
+    return std::unique_ptr<CommandPacket>(nullptr);
+  }
+
+  if (!ReceiveAll(payload, header.back(), fd)) {
+    LOG_ERROR(LOG_TAG, "Error: receiving command payload.");
+    return std::unique_ptr<CommandPacket>(nullptr);
+  }
+
+  std::unique_ptr<CommandPacket> command(new CommandPacket());
+  if (!command->Encode(header, payload)) {
+    LOG_ERROR(LOG_TAG, "Error: encoding command packet.");
+    command.reset(nullptr);
+  }
+  return command;
+}
+
+serial_data_type_t PacketStream::ReceivePacketType(int fd) const {
+  LOG_INFO(LOG_TAG, "Receiving packet type.");
+
+  std::vector<uint8_t> raw_type_octet;
+
+  if (!ReceiveAll(raw_type_octet, 1, fd)) {
+    // TODO(dennischeng): Proper error handling.
+    LOG_ERROR(LOG_TAG, "Error: Could not receive packet type.");
+  }
+
+  // Check that the type octet received is in the valid range, i.e. the packet
+  // must be a command or data packet.
+  const serial_data_type_t type =
+      static_cast<serial_data_type_t>(raw_type_octet[0]);
+  if (!ValidateTypeOctet(type)) {
+    // TODO(dennischeng): Proper error handling.
+    LOG_ERROR(LOG_TAG, "Error: Received invalid packet type.");
+  }
+  return type;
+}
+
+bool PacketStream::SendEvent(const EventPacket& event, int fd) const {
+  LOG_INFO(LOG_TAG, "Sending event with event code: 0x%04X",
+           event.GetEventCode());
+  LOG_INFO(LOG_TAG, "Sending event with size: %zu octets",
+           event.GetPacketSize());
+
+  if (!SendAll({static_cast<uint8_t>(event.GetType())}, 1, fd)) {
+    LOG_ERROR(LOG_TAG, "Error: Could not send event type.");
+    return false;
+  }
+
+  if (!SendAll(event.GetHeader(), event.GetHeaderSize(), fd)) {
+    LOG_ERROR(LOG_TAG, "Error: Could not send event header.");
+    return false;
+  }
+
+  if (!SendAll(event.GetPayload(), event.GetPayloadSize(), fd)) {
+    LOG_ERROR(LOG_TAG, "Error: Could not send event payload.");
+    return false;
+  }
+  return true;
+}
+
+bool PacketStream::ValidateTypeOctet(serial_data_type_t type) const {
+  LOG_INFO(LOG_TAG, "Signal octet is 0x%02X.", type);
+  // The only types of packets that should be received from the HCI are command
+  // packets and data packets.
+  return (type >= DATA_TYPE_COMMAND) && (type <= DATA_TYPE_SCO);
+}
+
+bool PacketStream::ReceiveAll(std::vector<uint8_t>& destination,
+                              size_t num_octets_to_receive, int fd) const {
+  destination.resize(num_octets_to_receive);
+  size_t octets_remaining = num_octets_to_receive;
+  while (octets_remaining > 0) {
+    const int num_octets_received =
+        read(fd, &destination[num_octets_to_receive - octets_remaining],
+             octets_remaining);
+    if (num_octets_received < 0)
+      return false;
+    octets_remaining -= num_octets_received;
+  }
+  return true;
+}
+
+bool PacketStream::SendAll(const std::vector<uint8_t>& source,
+                           size_t num_octets_to_send, int fd) const {
+  CHECK(source.size() >= num_octets_to_send);
+  size_t octets_remaining = num_octets_to_send;
+  while (octets_remaining > 0) {
+    const int num_octets_sent = write(
+        fd, &source[num_octets_to_send - octets_remaining], octets_remaining);
+    if (num_octets_sent < 0)
+      return false;
+    octets_remaining -= num_octets_sent;
+  }
+  return true;
+}
+
+}  // namespace test_vendor_lib
diff --git a/rtkbt/code/bt/vendor_libs/test_vendor_lib/src/test_channel_transport.cc b/rtkbt/code/bt/vendor_libs/test_vendor_lib/src/test_channel_transport.cc
new file mode 100755
index 0000000..8419f2c
--- /dev/null
+++ b/rtkbt/code/bt/vendor_libs/test_vendor_lib/src/test_channel_transport.cc
@@ -0,0 +1,138 @@
+//
+// Copyright 2015 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#define LOG_TAG "test_channel_transport"
+
+#include "vendor_libs/test_vendor_lib/include/test_channel_transport.h"
+
+#include "base/logging.h"
+
+extern "C" {
+#include "osi/include/log.h"
+
+#include <sys/socket.h>
+#include <netinet/in.h>
+}  // extern "C"
+
+namespace test_vendor_lib {
+
+TestChannelTransport::TestChannelTransport(bool enabled, int port)
+    : enabled_(enabled), port_(port) {}
+
+bool TestChannelTransport::SetUp() {
+  CHECK(enabled_);
+
+  struct sockaddr_in listen_address, test_channel_address;
+  int sockaddr_in_size = sizeof(struct sockaddr_in);
+  int listen_fd = -1;
+  int accept_fd = -1;
+  memset(&listen_address, 0, sockaddr_in_size);
+  memset(&test_channel_address, 0, sockaddr_in_size);
+
+  if ((listen_fd = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
+    LOG_INFO(LOG_TAG, "Error creating socket for test channel.");
+    return false;
+  }
+
+  LOG_INFO(LOG_TAG, "port: %d", port_);
+  listen_address.sin_family = AF_INET;
+  listen_address.sin_port = htons(port_);
+  listen_address.sin_addr.s_addr = htonl(INADDR_ANY);
+
+  if (bind(listen_fd, reinterpret_cast<sockaddr*>(&listen_address),
+           sockaddr_in_size) < 0) {
+    LOG_INFO(LOG_TAG, "Error binding test channel listener socket to address.");
+    close(listen_fd);
+    return false;
+  }
+
+  if (listen(listen_fd, 1) < 0) {
+    LOG_INFO(LOG_TAG, "Error listening for test channel.");
+    close(listen_fd);
+    return false;
+  }
+
+  if ((accept_fd =
+           accept(listen_fd, reinterpret_cast<sockaddr*>(&test_channel_address),
+                  &sockaddr_in_size)) < 0) {
+    LOG_INFO(LOG_TAG, "Error accepting test channel connection.");
+    close(listen_fd);
+    return false;
+  }
+
+  fd_.reset(new base::ScopedFD(accept_fd));
+  return GetFd() >= 0;
+}
+
+int TestChannelTransport::GetFd() {
+  return fd_->get();
+}
+
+bool TestChannelTransport::IsEnabled() {
+  return enabled_;
+}
+
+// base::MessageLoopForIO::Watcher overrides:
+void TestChannelTransport::OnFileCanReadWithoutBlocking(int fd) {
+  CHECK(fd == GetFd());
+
+  LOG_INFO(LOG_TAG, "Event ready in TestChannelTransport on fd: %d", fd);
+  uint8_t command_name_size = 0;
+  read(fd, &command_name_size, 1);
+  std::vector<uint8_t> command_name_raw;
+  command_name_raw.resize(command_name_size);
+  read(fd, &command_name_raw[0], command_name_size);
+  std::string command_name(command_name_raw.begin(), command_name_raw.end());
+  LOG_INFO(LOG_TAG, "Received command from test channel: %s",
+           command_name.data());
+
+  if (command_name == "CLOSE_TEST_CHANNEL") {
+    fd_.reset(nullptr);
+    return;
+  }
+
+  uint8_t num_args = 0;
+  read(fd, &num_args, 1);
+  LOG_INFO(LOG_TAG, "num_args: %d", num_args);
+  std::vector<std::string> args;
+  for (uint8_t i = 0; i < num_args; ++i) {
+    uint8_t arg_size = 0;
+    read(fd, &arg_size, 1);
+    std::vector<uint8_t> arg;
+    arg.resize(arg_size);
+    read(fd, &arg[0], arg_size);
+    args.push_back(std::string(arg.begin(), arg.end()));
+  }
+
+  for (size_t i = 0; i < args.size(); ++i)
+    LOG_INFO(LOG_TAG, "Command argument %zu: %s", i, args[i].data());
+
+  command_handler_(command_name, args);
+}
+
+void TestChannelTransport::OnFileCanWriteWithoutBlocking(int fd) {}
+
+void TestChannelTransport::RegisterCommandHandler(
+    std::function<void(const std::string&, const std::vector<std::string>&)>
+        callback) {
+  command_handler_ = callback;
+}
+
+void TestChannelTransport::Disable() {
+  enabled_ = false;
+}
+
+}  // namespace test_vendor_lib {
diff --git a/rtkbt/code/bt/vendor_libs/test_vendor_lib/src/vendor_manager.cc b/rtkbt/code/bt/vendor_libs/test_vendor_lib/src/vendor_manager.cc
new file mode 100755
index 0000000..f7e640a
--- /dev/null
+++ b/rtkbt/code/bt/vendor_libs/test_vendor_lib/src/vendor_manager.cc
@@ -0,0 +1,149 @@
+//
+// Copyright 2015 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#define LOG_TAG "vendor_manager"
+
+#include "vendor_manager.h"
+
+#include "base/bind.h"
+#include "base/logging.h"
+
+extern "C" {
+#include "osi/include/log.h"
+}  // extern "C"
+
+namespace test_vendor_lib {
+
+VendorManager* g_manager = nullptr;
+
+// static
+void VendorManager::CleanUp() {
+  delete g_manager;
+  g_manager = nullptr;
+}
+
+// static
+VendorManager* VendorManager::Get() {
+  // Initialize should have been called already.
+  CHECK(g_manager);
+  return g_manager;
+}
+
+// static
+void VendorManager::Initialize() {
+  CHECK(!g_manager);
+  g_manager = new VendorManager();
+}
+
+VendorManager::VendorManager()
+    : running_(false),
+      test_channel_transport_(true, 6111),
+      thread_("TestVendorLibrary"),
+      weak_ptr_factory_(this) {}
+
+bool VendorManager::Run() {
+  CHECK(!running_);
+
+  if (!transport_.SetUp()) {
+    LOG_ERROR(LOG_TAG, "Error setting up transport object.");
+    return false;
+  }
+
+  if (test_channel_transport_.IsEnabled()) {
+    LOG_INFO(LOG_TAG, "Test channel is enabled.");
+
+    if (test_channel_transport_.SetUp()) {
+      controller_.RegisterHandlersWithTestChannelTransport(
+          test_channel_transport_);
+    } else {
+      LOG_ERROR(LOG_TAG,
+                "Error setting up test channel object, continuing without it.");
+      test_channel_transport_.Disable();
+    }
+  } else {
+    LOG_INFO(LOG_TAG, "Test channel is disabled.");
+  }
+
+  controller_.RegisterHandlersWithHciTransport(transport_);
+  // TODO(dennischeng): Register PostDelayedEventResponse instead.
+  controller_.RegisterDelayedEventChannel(
+      std::bind(&HciTransport::PostDelayedEventResponse, &transport_,
+                std::placeholders::_1, std::placeholders::_2));
+
+  running_ = true;
+  if (!thread_.StartWithOptions(
+          base::Thread::Options(base::MessageLoop::TYPE_IO, 0))) {
+    LOG_ERROR(LOG_TAG, "Error starting TestVendorLibrary thread.");
+    running_ = false;
+    return false;
+  }
+
+  if (!PostTask(base::Bind(&VendorManager::StartWatchingOnThread,
+                           weak_ptr_factory_.GetWeakPtr()))) {
+    LOG_ERROR(LOG_TAG, "Error posting StartWatchingOnThread to task runner.");
+    running_ = false;
+    return false;
+  }
+
+  return true;
+}
+
+void VendorManager::StartWatchingOnThread() {
+  CHECK(running_);
+  CHECK(base::MessageLoopForIO::IsCurrent());
+
+  if (!base::MessageLoopForIO::current()->WatchFileDescriptor(
+          transport_.GetVendorFd(), true,
+          base::MessageLoopForIO::WATCH_READ_WRITE, &hci_watcher_,
+          &transport_)) {
+    LOG_ERROR(LOG_TAG, "Error watching vendor fd.");
+    return;
+  }
+
+  if (test_channel_transport_.IsEnabled())
+    if (!base::MessageLoopForIO::current()->WatchFileDescriptor(
+            test_channel_transport_.GetFd(), true,
+            base::MessageLoopForIO::WATCH_READ, &test_channel_watcher_,
+            &test_channel_transport_))
+      LOG_ERROR(LOG_TAG, "Error watching test channel fd.");
+}
+
+bool VendorManager::PostTask(const base::Closure& task) {
+  return PostDelayedTask(task, base::TimeDelta::FromMilliseconds(0));
+}
+
+bool VendorManager::PostDelayedTask(const base::Closure& task,
+                                    base::TimeDelta delay) {
+  return thread_.task_runner()->PostDelayedTask(FROM_HERE, task, delay);
+}
+
+void VendorManager::SetVendorCallbacks(const bt_vendor_callbacks_t& callbacks) {
+  vendor_callbacks_ = callbacks;
+}
+
+const bt_vendor_callbacks_t& VendorManager::GetVendorCallbacks() const {
+  return vendor_callbacks_;
+}
+
+void VendorManager::CloseHciFd() {
+  transport_.CloseHciFd();
+}
+
+int VendorManager::GetHciFd() const {
+  return transport_.GetHciFd();
+}
+
+}  // namespace test_vendor_lib
diff --git a/rtkbt/code/bt/vendor_libs/test_vendor_lib/test/hci_transport_unittest.cc b/rtkbt/code/bt/vendor_libs/test_vendor_lib/test/hci_transport_unittest.cc
new file mode 100755
index 0000000..5887c37
--- /dev/null
+++ b/rtkbt/code/bt/vendor_libs/test_vendor_lib/test/hci_transport_unittest.cc
@@ -0,0 +1,140 @@
+//
+// Copyright 2015 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#include "vendor_libs/test_vendor_lib/include/command_packet.h"
+#include "vendor_libs/test_vendor_lib/include/hci_transport.h"
+
+#include "base/bind.h"
+#include "base/message_loop/message_loop.h"
+#include "base/threading/thread.h"
+
+#include <gtest/gtest.h>
+#include <functional>
+#include <mutex>
+
+extern "C" {
+#include "stack/include/hcidefs.h"
+}  // extern "C"
+
+namespace {
+const std::vector<uint8_t> stub_command({DATA_TYPE_COMMAND,
+                                         static_cast<uint8_t>(HCI_RESET),
+                                         static_cast<uint8_t>(HCI_RESET >> 8),
+                                         0});
+
+const int kMultiIterations = 10000;
+
+void WriteStubCommand(int fd) {
+  write(fd, &stub_command[0], stub_command.size());
+}
+
+}  // namespace
+
+namespace test_vendor_lib {
+
+class HciTransportTest : public ::testing::Test {
+ public:
+  HciTransportTest()
+      : command_callback_count_(0),
+        thread_("HciTransportTest"),
+        weak_ptr_factory_(this) {
+    SetUpTransport();
+    StartThread();
+    PostStartWatchingOnThread();
+  }
+
+  ~HciTransportTest() {
+    transport_.CloseHciFd();
+  }
+
+  void CommandCallback(std::unique_ptr<CommandPacket> command) {
+    ++command_callback_count_;
+    // Ensure that the received packet matches the stub command.
+    EXPECT_EQ(DATA_TYPE_COMMAND, command->GetType());
+    EXPECT_EQ(HCI_RESET, command->GetOpcode());
+    EXPECT_EQ(0, command->GetPayloadSize());
+    transport_.CloseVendorFd();
+  }
+
+  void MultiCommandCallback(std::unique_ptr<CommandPacket> command) {
+    ++command_callback_count_;
+    // Ensure that the received packet matches the stub command.
+    EXPECT_EQ(DATA_TYPE_COMMAND, command->GetType());
+    EXPECT_EQ(HCI_RESET, command->GetOpcode());
+    EXPECT_EQ(0, command->GetPayloadSize());
+    if (command_callback_count_ == kMultiIterations)
+      transport_.CloseVendorFd();
+  }
+
+ protected:
+  // Tracks the number of commands received.
+  int command_callback_count_;
+  base::Thread thread_;
+  HciTransport transport_;
+  base::MessageLoopForIO::FileDescriptorWatcher watcher_;
+  base::WeakPtrFactory<HciTransportTest> weak_ptr_factory_;
+
+ private:
+  // Workaround because ASSERT cannot be used directly in a constructor
+  void SetUpTransport() {
+    ASSERT_TRUE(transport_.SetUp());
+  }
+
+  void StartThread() {
+    ASSERT_TRUE(thread_.StartWithOptions(
+        base::Thread::Options(base::MessageLoop::TYPE_IO, 0)));
+  }
+
+  void PostStartWatchingOnThread() {
+    thread_.task_runner()->PostTask(
+        FROM_HERE, base::Bind(&HciTransportTest::StartWatchingOnThread,
+                              weak_ptr_factory_.GetWeakPtr()));
+  }
+
+  void StartWatchingOnThread() {
+    base::MessageLoopForIO* loop =
+        static_cast<base::MessageLoopForIO*>(thread_.message_loop());
+    ASSERT_TRUE(loop);
+    ASSERT_TRUE(loop->WatchFileDescriptor(
+        transport_.GetVendorFd(), true,
+        base::MessageLoopForIO::WATCH_READ_WRITE, &watcher_, &transport_));
+  }
+};
+
+TEST_F(HciTransportTest, SingleCommandCallback) {
+  transport_.RegisterCommandHandler(std::bind(
+      &HciTransportTest::CommandCallback, this, std::placeholders::_1));
+  EXPECT_EQ(0, command_callback_count_);
+  WriteStubCommand(transport_.GetHciFd());
+  thread_.Stop();  // Wait for the command handler to finish.
+  EXPECT_EQ(1, command_callback_count_);
+}
+
+TEST_F(HciTransportTest, MultiCommandCallback) {
+  transport_.RegisterCommandHandler(std::bind(
+      &HciTransportTest::MultiCommandCallback, this, std::placeholders::_1));
+  EXPECT_EQ(0, command_callback_count_);
+  WriteStubCommand(transport_.GetHciFd());
+  for (int i = 1; i < kMultiIterations; ++i)
+    WriteStubCommand(transport_.GetHciFd());
+  thread_.Stop();  // Wait for the command handler to finish.
+  EXPECT_EQ(kMultiIterations, command_callback_count_);
+}
+
+// TODO(dennischeng): Add tests for PostEventResponse and
+// PostDelayedEventResponse.
+
+}  // namespace test_vendor_lib
diff --git a/rtkbt/code/bt/vendor_libs/test_vendor_lib/test/packet_stream_unittest.cc b/rtkbt/code/bt/vendor_libs/test_vendor_lib/test/packet_stream_unittest.cc
new file mode 100755
index 0000000..3d70ad8
--- /dev/null
+++ b/rtkbt/code/bt/vendor_libs/test_vendor_lib/test/packet_stream_unittest.cc
@@ -0,0 +1,151 @@
+//
+// Copyright 2015 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#include "vendor_libs/test_vendor_lib/include/packet_stream.h"
+#include "vendor_libs/test_vendor_lib/include/command_packet.h"
+#include "vendor_libs/test_vendor_lib/include/event_packet.h"
+#include "vendor_libs/test_vendor_lib/include/packet.h"
+
+#include <gtest/gtest.h>
+#include <cstdint>
+#include <memory>
+#include <vector>
+
+extern "C" {
+#include "hci/include/hci_hal.h"
+#include "stack/include/hcidefs.h"
+
+#include <sys/socket.h>
+}  // extern "C"
+
+namespace {
+const char small_payload[] = "foo bar baz";
+const char large_payload[] =
+  "Aristotle's principles will then be no more principles to him, than those "
+  "of Epicurus and the Stoics: let this diversity of opinions be propounded "
+  "to, and laid before him; he will himself choose, if he be able; if not, "
+  "he will remain in doubt.";
+}  // namespace
+
+namespace test_vendor_lib {
+
+class PacketStreamTest : public ::testing::Test {
+ public:
+  PacketStreamTest() {
+    socketpair(AF_LOCAL, SOCK_STREAM, 0, socketpair_fds_);
+    CheckSocketpairInit();
+  }
+
+  ~PacketStreamTest() {
+    close(socketpair_fds_[0]);
+    close(socketpair_fds_[1]);
+  }
+
+  void CheckedReceiveCommand(const char* payload, uint16_t opcode) {
+    uint8_t payload_size = strlen(payload);
+    std::vector<uint8_t> packet;
+
+    packet.push_back(DATA_TYPE_COMMAND);
+    packet.push_back(opcode);
+    packet.push_back(opcode >> 8);
+    packet.push_back(payload_size);
+
+    // Set the packet's payload.
+    for (int i = 0; i < payload_size; ++i)
+      packet.push_back(payload[i]);
+
+    // Send the packet to |packet_stream_|.
+    write(socketpair_fds_[1], &packet[1], packet.size());
+
+    // Read the command packet.
+    std::unique_ptr<CommandPacket> command =
+        packet_stream_.ReceiveCommand(socketpair_fds_[0]);
+
+    const std::vector<uint8_t> received_payload = command->GetPayload();
+
+    // Validate the packet by checking that it's the appropriate size and then
+    // checking each byte.
+    EXPECT_EQ(packet.size(), command->GetPacketSize());
+    EXPECT_EQ(DATA_TYPE_COMMAND, command->GetType());
+    EXPECT_EQ(opcode, command->GetOpcode());
+    EXPECT_EQ(payload_size, command->GetPayloadSize());
+    for (int i = 0; i < payload_size; ++i)
+      EXPECT_EQ(packet[4 + i], received_payload[i]);
+  }
+
+  void CheckedSendEvent(std::unique_ptr<EventPacket> event) {
+    EXPECT_TRUE(packet_stream_.SendEvent(*(event.get()), socketpair_fds_[0]));
+
+    // Read the packet sent by |packet_stream_|.
+    uint8_t event_header[3];
+    read(socketpair_fds_[1], event_header, 3);
+
+    uint8_t return_parameters_size = event_header[2];
+    uint8_t return_parameters[return_parameters_size];
+    read(socketpair_fds_[1], return_parameters, sizeof(return_parameters));
+
+    const std::vector<uint8_t> expected_payload = event->GetPayload();
+
+    // Validate the packet by checking that it's the
+    // appropriate size and then checking each byte.
+    EXPECT_EQ(event->GetPacketSize(),
+              sizeof(event_header) + sizeof(return_parameters));
+    EXPECT_EQ(DATA_TYPE_EVENT, event_header[0]);
+    EXPECT_EQ(event->GetEventCode(), event_header[1]);
+    EXPECT_EQ(event->GetPayloadSize(), return_parameters_size);
+    for (int i = 0; i < return_parameters_size; ++i)
+      EXPECT_EQ(expected_payload[i], return_parameters[i]);
+  }
+
+ protected:
+  PacketStream packet_stream_;
+
+  int socketpair_fds_[2];
+
+ private:
+  // Workaround because ASSERT cannot be used directly in a constructor
+  void CheckSocketpairInit() {
+    ASSERT_TRUE(socketpair_fds_[0] > 0);
+    ASSERT_TRUE(socketpair_fds_[1] > 0);
+  }
+
+};
+
+TEST_F(PacketStreamTest, ReceivePacketType) {
+  serial_data_type_t command_type = DATA_TYPE_COMMAND;
+  write(socketpair_fds_[1], &command_type, 1);
+  EXPECT_EQ(command_type, packet_stream_.ReceivePacketType(socketpair_fds_[0]));
+}
+
+TEST_F(PacketStreamTest, ReceiveEmptyCommand) {
+  CheckedReceiveCommand("", HCI_RESET);
+}
+
+TEST_F(PacketStreamTest, ReceiveSmallCommand) {
+  CheckedReceiveCommand(small_payload, HCI_RESET);
+}
+
+TEST_F(PacketStreamTest, ReceiveLargeCommand) {
+  CheckedReceiveCommand(large_payload, HCI_RESET);
+}
+
+TEST_F(PacketStreamTest, SendEvent) {
+  const std::vector<uint8_t> return_parameters = {0};
+  CheckedSendEvent(
+      EventPacket::CreateCommandCompleteEvent(1, HCI_RESET, return_parameters));
+}
+
+}  // namespace test_vendor_lib
diff --git a/rtkbt/code/bt/vnd/ble/vendor_hcidefs.h b/rtkbt/code/bt/vnd/ble/vendor_hcidefs.h
new file mode 100755
index 0000000..b5e770b
--- /dev/null
+++ b/rtkbt/code/bt/vnd/ble/vendor_hcidefs.h
@@ -0,0 +1,54 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2003-2014 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/*****************************************************************************
+**
+**  Name        vendor_hcidefs.h
+**
+**  Function    This file contains Broadcom Specific Host Controller Interface
+**              definitions.
+**
+******************************************************************************/
+
+#ifndef VENDOR_HCIDEFS_H
+#define VENDOR_HCIDEFS_H
+
+/*****************************************************************************
+** Private address resolution VSC
+******************************************************************************/
+
+/* VSC */
+#define HCI_VENDOR_BLE_RPA_VSC                (0x0155 | HCI_GRP_VENDOR_SPECIFIC)
+
+/* Sub codes */
+#define HCI_VENDOR_BLE_RPA_ENABLE       0x01
+#define HCI_VENDOR_BLE_RPA_ADD_IRK      0x02
+#define HCI_VENDOR_BLE_RPA_REMOVE_IRK   0x03
+#define HCI_VENDOR_BLE_RPA_CLEAR_IRK    0x04
+#define HCI_VENDOR_BLE_RPA_READ_IRK     0x05
+
+
+/*****************************************************************************
+** Advertising data payload filter VSC
+******************************************************************************/
+
+/* VSC */
+#define HCI_VENDOR_BLE_PCF_VSC                (0x0157 | HCI_GRP_VENDOR_SPECIFIC)
+
+#endif
+
diff --git a/rtkbt/code/bt/vnd/include/vendor_api.h b/rtkbt/code/bt/vnd/include/vendor_api.h
new file mode 100755
index 0000000..3c1d30f
--- /dev/null
+++ b/rtkbt/code/bt/vnd/include/vendor_api.h
@@ -0,0 +1,49 @@
+/****************************************************************************
+**
+** Name:         vendor_api.h
+**
+** Description:  Vendor specific BTE API function external definitions.
+**
+** Copyright (c) 2009-2011, BROADCOM Inc., All Rights Reserved.
+** Broadcom Bluetooth Core. Proprietary and confidential.
+**
+******************************************************************************/
+#ifndef VENDOR_API_H
+#define VENDOR_API_H
+
+#include "bt_types.h"
+#include "btm_api.h"
+
+/****************************************************************************
+**  Resolvable private address offload VSC specific definitions
+******************************************************************************/
+
+enum
+{
+    BTM_BLE_PRIVACY_ENABLE,
+    BTM_BLE_PRIVACY_DISABLE
+};
+
+
+/****************************************************************************
+**  Advertising packet filter VSC specific definitions
+******************************************************************************/
+
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*****************************************************************************
+**              VENDOR SPECIFIC BLE FEATURE FUNCTIONS
+******************************************************************************/
+#if BLE_ANDROID_CONTROLLER_SCAN_FILTER == TRUE
+
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/rtkbt/code/libbt-vendor/Android.mk b/rtkbt/code/libbt-vendor/Android.mk
new file mode 100755
index 0000000..5053e7d
--- /dev/null
+++ b/rtkbt/code/libbt-vendor/Android.mk
@@ -0,0 +1 @@
+include $(call all-subdir-makefiles)
diff --git a/rtkbt/code/libbt-vendor/uart/Android.mk b/rtkbt/code/libbt-vendor/uart/Android.mk
new file mode 100755
index 0000000..f7ac570
--- /dev/null
+++ b/rtkbt/code/libbt-vendor/uart/Android.mk
@@ -0,0 +1,25 @@
+LOCAL_PATH := $(call my-dir)
+
+include $(CLEAR_VARS)
+
+BDROID_DIR := $(LOCAL_PATH)/../../bt
+
+LOCAL_SRC_FILES := \
+        src/bt_vendor_rtk.c \
+        src/hardware.c \
+        src/userial_vendor.c \
+        src/upio.c
+
+LOCAL_C_INCLUDES += \
+        $(LOCAL_PATH)/include \
+        $(BDROID_DIR)/hci/include
+
+LOCAL_SHARED_LIBRARIES := \
+        libcutils \
+        libhardware_legacy
+
+LOCAL_MODULE := libbt-vendor_uart
+LOCAL_MODULE_TAGS := optional
+LOCAL_MODULE_CLASS := SHARED_LIBRARIES
+
+include $(BUILD_SHARED_LIBRARY)
diff --git a/rtkbt/code/libbt-vendor/uart/include/bt_vendor_rtk.h b/rtkbt/code/libbt-vendor/uart/include/bt_vendor_rtk.h
new file mode 100755
index 0000000..254606b
--- /dev/null
+++ b/rtkbt/code/libbt-vendor/uart/include/bt_vendor_rtk.h
@@ -0,0 +1,210 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Realtek Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  Filename:      bt_vendor_rtk.h
+ *
+ *  Description:   A wrapper header file of bt_vendor_lib.h
+ *
+ *                 Contains definitions specific for interfacing with Realtek
+ *                 Bluetooth chipsets
+ *
+ ******************************************************************************/
+
+#ifndef BT_VENDOR_RTK_H
+#define BT_VENDOR_RTK_H
+
+#include "bt_vendor_lib.h"
+#include "vnd_buildcfg.h"
+#include <string.h>
+
+/******************************************************************************
+**  Constants & Macros
+******************************************************************************/
+
+#ifndef FALSE
+#define FALSE  0
+#endif
+
+#ifndef TRUE
+#define TRUE   (!FALSE)
+#endif
+
+
+/* Device port name where Bluetooth controller attached */
+#ifndef BLUETOOTH_UART_DEVICE_PORT
+#define BLUETOOTH_UART_DEVICE_PORT      "/dev/ttyO1"    /* maguro */
+#endif
+
+/* Location of firmware patch files */
+#ifndef FW_PATCHFILE_LOCATION
+#define FW_PATCHFILE_LOCATION "/vendor/firmware/"  /* maguro */
+#endif
+
+#ifndef UART_TARGET_BAUD_RATE
+#define UART_TARGET_BAUD_RATE           3000000
+#endif
+
+
+
+/* The Bluetooth Device Aaddress source switch:
+ *
+ * -FALSE- (default value)
+ *  Get the factory BDADDR from device's file system. Normally the BDADDR is
+ *  stored in the location pointed by the PROPERTY_BT_BDADDR_PATH (defined in
+ *  btif_common.h file) property.
+ *
+ * -TRUE-
+ *  If the Bluetooth Controller has equipped with a non-volatile memory (such
+ *  as BCM4330's OTP memory), the factory BDADDR can be stored in there and
+ *  retrieved by the stack while enabling BT.
+ *  !!! WARNING !!! Make sure that the OTP feature has been enabled in the
+ *  firmware patchram (.hcd) file.
+ */
+#ifndef USE_CONTROLLER_BDADDR
+#define USE_CONTROLLER_BDADDR   TRUE //FALSE
+#endif
+
+/* sleep mode
+
+    0: disable
+    1: UART with Host wake/BT wake out of band signals
+*/
+#ifndef LPM_SLEEP_MODE
+#define LPM_SLEEP_MODE                  1
+#endif
+
+/* Host Stack Idle Threshold in 300ms or 25ms
+
+  In sleep mode 1, this is the number of firmware loops executed with no
+    activity before the Host wake line is deasserted. Activity includes HCI
+    traffic excluding certain sleep mode commands and the presence of SCO
+    connections if the "Allow Host Sleep During SCO" flag is not set to 1.
+    Each count of this parameter is roughly equivalent to 300ms or 25ms.
+*/
+#ifndef LPM_IDLE_THRESHOLD
+#define LPM_IDLE_THRESHOLD              1
+#endif
+
+/* Host Controller Idle Threshold in 300ms or 25ms
+
+    This is the number of firmware loops executed with no activity before the
+    HC is considered idle. Depending on the mode, HC may then attempt to sleep.
+    Activity includes HCI traffic excluding certain sleep mode commands and
+    the presence of ACL/SCO connections.
+*/
+#ifndef LPM_HC_IDLE_THRESHOLD
+#define LPM_HC_IDLE_THRESHOLD           1
+#endif
+
+/* BT_WAKE Polarity - 0=Active Low, 1= Active High */
+#ifndef LPM_BT_WAKE_POLARITY
+#define LPM_BT_WAKE_POLARITY            1    /* maguro */
+#endif
+
+/* HOST_WAKE Polarity - 0=Active Low, 1= Active High */
+#ifndef LPM_HOST_WAKE_POLARITY
+#define LPM_HOST_WAKE_POLARITY          1    /* maguro */
+#endif
+
+/* LPM_ALLOW_HOST_SLEEP_DURING_SCO
+
+    When this flag is set to 0, the host is not allowed to sleep while
+    an SCO is active. In sleep mode 1, the device will keep the host
+    wake line asserted while an SCO is active.
+    When this flag is set to 1, the host can sleep while an SCO is active.
+    This flag should only be set to 1 if SCO traffic is directed to the PCM
+    interface.
+*/
+#ifndef LPM_ALLOW_HOST_SLEEP_DURING_SCO
+#define LPM_ALLOW_HOST_SLEEP_DURING_SCO 1
+#endif
+
+/* LPM_COMBINE_SLEEP_MODE_AND_LPM
+
+    In Mode 0, always set byte 7 to 0. In sleep mode 1, device always
+    requires permission to sleep between scans / periodic inquiries regardless
+    of the setting of this byte. In sleep mode 1, if byte is set, device must
+    have "permission" to sleep during the low power modes of sniff, hold, and
+    park. If byte is not set, device can sleep without permission during these
+    modes. Permission to sleep in Mode 1 is obtained if the BT_WAKE signal is
+    not asserted.
+*/
+#ifndef LPM_COMBINE_SLEEP_MODE_AND_LPM
+#define LPM_COMBINE_SLEEP_MODE_AND_LPM  1
+#endif
+
+/* LPM_ENABLE_UART_TXD_TRI_STATE
+
+    When set to 0, the device will not tristate its UART TX line before going
+    to sleep.
+    When set to 1, the device will tristate its UART TX line before going to
+    sleep.
+*/
+#ifndef LPM_ENABLE_UART_TXD_TRI_STATE
+#define LPM_ENABLE_UART_TXD_TRI_STATE   0
+#endif
+
+/* LPM_PULSED_HOST_WAKE
+*/
+#ifndef LPM_PULSED_HOST_WAKE
+#define LPM_PULSED_HOST_WAKE            0
+#endif
+
+/* LPM_IDLE_TIMEOUT_MULTIPLE
+
+    The multiple factor of host stack idle threshold in 300ms/25ms
+*/
+#ifndef LPM_IDLE_TIMEOUT_MULTIPLE
+#define LPM_IDLE_TIMEOUT_MULTIPLE       10
+#endif
+
+/* BT_WAKE_VIA_USERIAL_IOCTL
+
+    Use userial ioctl function to control BT_WAKE signal
+*/
+#ifndef BT_WAKE_VIA_USERIAL_IOCTL
+#define BT_WAKE_VIA_USERIAL_IOCTL       FALSE
+#endif
+
+/* BT_WAKE_VIA_PROC
+
+    LPM & BT_WAKE control through PROC nodes
+*/
+#ifndef BT_WAKE_VIA_PROC
+#define BT_WAKE_VIA_PROC       FALSE
+#endif
+
+/* HW_END_WITH_HCI_RESET
+
+    Sample code implementation of sending a HCI_RESET command during the epilog
+    process. It calls back to the callers after command complete of HCI_RESET
+    is received.
+*/
+#ifndef HW_END_WITH_HCI_RESET
+#define HW_END_WITH_HCI_RESET    FALSE
+#endif
+
+/******************************************************************************
+**  Extern variables and functions
+******************************************************************************/
+
+extern bt_vendor_callbacks_t *bt_vendor_cbacks;
+
+#endif /* BT_VENDOR_RTK_H */
diff --git a/rtkbt/code/libbt-vendor/uart/include/upio.h b/rtkbt/code/libbt-vendor/uart/include/upio.h
new file mode 100755
index 0000000..20ed9bb
--- /dev/null
+++ b/rtkbt/code/libbt-vendor/uart/include/upio.h
@@ -0,0 +1,118 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Realtek Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  Filename:      upio.h
+ *
+ *  Description:   Contains definitions used for I/O controls
+ *
+ ******************************************************************************/
+
+#ifndef UPIO_H
+#define UPIO_H
+
+/******************************************************************************
+**  Constants & Macros
+******************************************************************************/
+
+#define UPIO_BT_POWER_OFF 0
+#define UPIO_BT_POWER_ON  1
+
+/* UPIO signals */
+enum {
+    UPIO_BT_WAKE = 0,
+    UPIO_HOST_WAKE,
+    UPIO_LPM_MODE,
+    UPIO_MAX_COUNT
+};
+
+/* UPIO assertion/deassertion */
+enum {
+    UPIO_UNKNOWN = 0,
+    UPIO_DEASSERT,
+    UPIO_ASSERT
+};
+
+/******************************************************************************
+**  Extern variables and functions
+******************************************************************************/
+
+/******************************************************************************
+**  Functions
+******************************************************************************/
+
+/*******************************************************************************
+**
+** Function        upio_init
+**
+** Description     Initialization
+**
+** Returns         None
+**
+*******************************************************************************/
+void upio_init(void);
+
+/*******************************************************************************
+**
+** Function        upio_cleanup
+**
+** Description     Clean up
+**
+** Returns         None
+**
+*******************************************************************************/
+void upio_cleanup(void);
+
+/*******************************************************************************
+**
+** Function        upio_set_bluetooth_power
+**
+** Description     Interact with low layer driver to set Bluetooth power
+**                 on/off.
+**
+** Returns         0  : SUCCESS or Not-Applicable
+**                 <0 : ERROR
+**
+*******************************************************************************/
+int upio_set_bluetooth_power(int on);
+
+/*******************************************************************************
+**
+** Function        upio_set
+**
+** Description     Set i/o based on polarity
+**
+** Returns         None
+**
+*******************************************************************************/
+void upio_set(uint8_t pio, uint8_t action, uint8_t polarity);
+
+
+/*******************************************************************************
+**
+** Function        bt_wake_up_host_mode_set
+**
+** Description     To enable/disable bt_wake_up_host mode.
+**
+** Returns         0  : SUCCESS or Not-Applicable
+**                 <0 : ERROR
+**
+*******************************************************************************/
+int bt_wake_up_host_mode_set(uint8_t mode);
+#endif /* UPIO_H */
diff --git a/rtkbt/code/libbt-vendor/uart/include/userial_vendor.h b/rtkbt/code/libbt-vendor/uart/include/userial_vendor.h
new file mode 100755
index 0000000..bd93489
--- /dev/null
+++ b/rtkbt/code/libbt-vendor/uart/include/userial_vendor.h
@@ -0,0 +1,181 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Realtek Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  Filename:      userial_vendor.h
+ *
+ *  Description:   Contains vendor-specific definitions used in serial port
+ *                 controls
+ *
+ ******************************************************************************/
+
+#ifndef USERIAL_VENDOR_H
+#define USERIAL_VENDOR_H
+
+#include "bt_vendor_rtk.h"
+#include "userial.h"
+
+/******************************************************************************
+**  Constants & Macros
+******************************************************************************/
+
+/**** baud rates ****/
+#define USERIAL_BAUD_300        0
+#define USERIAL_BAUD_600        1
+#define USERIAL_BAUD_1200       2
+#define USERIAL_BAUD_2400       3
+#define USERIAL_BAUD_9600       4
+#define USERIAL_BAUD_19200      5
+#define USERIAL_BAUD_57600      6
+#define USERIAL_BAUD_115200     7
+#define USERIAL_BAUD_230400     8
+#define USERIAL_BAUD_460800     9
+#define USERIAL_BAUD_921600     10
+#define USERIAL_BAUD_1M         11
+#define USERIAL_BAUD_1_5M       12
+#define USERIAL_BAUD_2M         13
+#define USERIAL_BAUD_3M         14
+#define USERIAL_BAUD_4M         15
+#define USERIAL_BAUD_AUTO       16
+
+/**** Data Format ****/
+/* Stop Bits */
+#define USERIAL_STOPBITS_1      1
+#define USERIAL_STOPBITS_1_5    (1<<1)
+#define USERIAL_STOPBITS_2      (1<<2)
+
+/* Parity Bits */
+#define USERIAL_PARITY_NONE     (1<<3)
+#define USERIAL_PARITY_EVEN     (1<<4)
+#define USERIAL_PARITY_ODD      (1<<5)
+
+/* Data Bits */
+#define USERIAL_DATABITS_5      (1<<6)
+#define USERIAL_DATABITS_6      (1<<7)
+#define USERIAL_DATABITS_7      (1<<8)
+#define USERIAL_DATABITS_8      (1<<9)
+
+
+#define USERIAL_HW_FLOW_CTRL_OFF  0
+#define USERIAL_HW_FLOW_CTRL_ON    1
+
+
+#if (BT_WAKE_VIA_USERIAL_IOCTL==TRUE)
+/* These are the ioctl values used for bt_wake ioctl via UART driver. you may
+ * need to redefine them on you platform!
+ * Logically they need to be unique and not colide with existing uart ioctl's.
+ */
+#ifndef USERIAL_IOCTL_BT_WAKE_ASSERT
+#define USERIAL_IOCTL_BT_WAKE_ASSERT   0x8003
+#endif
+#ifndef USERIAL_IOCTL_BT_WAKE_DEASSERT
+#define USERIAL_IOCTL_BT_WAKE_DEASSERT 0x8004
+#endif
+#ifndef USERIAL_IOCTL_BT_WAKE_GET_ST
+#define USERIAL_IOCTL_BT_WAKE_GET_ST   0x8005
+#endif
+#endif // (BT_WAKE_VIA_USERIAL_IOCTL==TRUE)
+
+/******************************************************************************
+**  Type definitions
+******************************************************************************/
+
+/* Structure used to configure serial port during open */
+typedef struct
+{
+    uint16_t fmt;       /* Data format */
+    uint8_t  baud;      /* Baud rate */
+    uint8_t hw_fctrl; /*hardware flowcontrol*/
+} tUSERIAL_CFG;
+
+typedef enum {
+#if (BT_WAKE_VIA_USERIAL_IOCTL==TRUE)
+    USERIAL_OP_ASSERT_BT_WAKE,
+    USERIAL_OP_DEASSERT_BT_WAKE,
+    USERIAL_OP_GET_BT_WAKE_STATE,
+#endif
+    USERIAL_OP_NOP,
+} userial_vendor_ioctl_op_t;
+
+/******************************************************************************
+**  Extern variables and functions
+******************************************************************************/
+
+/******************************************************************************
+**  Functions
+******************************************************************************/
+
+/*******************************************************************************
+**
+** Function        userial_vendor_init
+**
+** Description     Initialize userial vendor-specific control block
+**
+** Returns         None
+**
+*******************************************************************************/
+void userial_vendor_init(char *bt_device_node);
+
+/*******************************************************************************
+**
+** Function        userial_vendor_open
+**
+** Description     Open the serial port with the given configuration
+**
+** Returns         device fd
+**
+*******************************************************************************/
+int userial_vendor_open(tUSERIAL_CFG *p_cfg);
+
+/*******************************************************************************
+**
+** Function        userial_vendor_close
+**
+** Description     Conduct vendor-specific close work
+**
+** Returns         None
+**
+*******************************************************************************/
+void userial_vendor_close(void);
+
+/*******************************************************************************
+**
+** Function        userial_vendor_set_baud
+**
+** Description     Set new baud rate
+**
+** Returns         None
+**
+*******************************************************************************/
+void userial_vendor_set_baud(uint8_t userial_baud);
+
+/*******************************************************************************
+**
+** Function        userial_vendor_ioctl
+**
+** Description     ioctl inteface
+**
+** Returns         None
+**
+*******************************************************************************/
+void userial_vendor_ioctl(userial_vendor_ioctl_op_t op, void *p_data);
+
+void userial_vendor_set_hw_fctrl(uint8_t hw_fctrl);
+
+#endif /* USERIAL_VENDOR_H */
diff --git a/rtkbt/code/libbt-vendor/uart/include/vnd_buildcfg.h b/rtkbt/code/libbt-vendor/uart/include/vnd_buildcfg.h
new file mode 100755
index 0000000..14d2d96
--- /dev/null
+++ b/rtkbt/code/libbt-vendor/uart/include/vnd_buildcfg.h
@@ -0,0 +1,11 @@
+#ifndef _VND_BUILDCFG_H
+#define _VND_BUILDCFG_H
+#define BLUETOOTH_UART_DEVICE_PORT   "/dev/ttyS0"
+#define FW_PATCHFILE_LOCATION   "/etc/firmware/"
+#define LPM_IDLE_TIMEOUT_MULTIPLE   5
+#define SCO_USE_I2S_INTERFACE   TRUE
+#define BTVND_DBG   TRUE
+#define BTHW_DBG   TRUE
+#define VNDUSERIAL_DBG   TRUE
+#define UPIO_DBG   TRUE
+#endif
diff --git a/rtkbt/code/libbt-vendor/uart/src/bt_vendor_rtk.c b/rtkbt/code/libbt-vendor/uart/src/bt_vendor_rtk.c
new file mode 100755
index 0000000..3bf5083
--- /dev/null
+++ b/rtkbt/code/libbt-vendor/uart/src/bt_vendor_rtk.c
@@ -0,0 +1,230 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Realtek Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  Filename:      bt_vendor_rtk.c
+ *
+ *  Description:   Realtek vendor specific library implementation
+ *
+ ******************************************************************************/
+
+#undef NDEBUG
+#define LOG_TAG "bt_vendor"
+#include <utils/Log.h>
+#include "bt_vendor_rtk.h"
+#include "upio.h"
+#include "userial_vendor.h"
+
+#ifndef BTVND_DBG
+#define BTVND_DBG TRUE
+#endif
+
+#if (BTVND_DBG == TRUE)
+#define BTVNDDBG(param, ...) {ALOGD(param, ## __VA_ARGS__);}
+#else
+#define BTVNDDBG(param, ...) {}
+#endif
+
+/******************************************************************************
+**  Externs
+******************************************************************************/
+
+void hw_config_start(void);
+
+#if (HW_END_WITH_HCI_RESET == TRUE)
+void hw_epilog_process(void);
+#endif
+
+/******************************************************************************
+**  Variables
+******************************************************************************/
+
+bt_vendor_callbacks_t *bt_vendor_cbacks = NULL;
+uint8_t vnd_local_bd_addr[6]={0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
+
+/******************************************************************************
+**  Local type definitions
+******************************************************************************/
+
+/******************************************************************************
+**  Static Variables
+******************************************************************************/
+
+static const tUSERIAL_CFG userial_init_cfg =
+{
+    (USERIAL_DATABITS_8 | USERIAL_PARITY_EVEN | USERIAL_STOPBITS_1),
+    USERIAL_BAUD_115200,
+    USERIAL_HW_FLOW_CTRL_OFF
+};
+
+/******************************************************************************
+**  Functions
+******************************************************************************/
+
+/*****************************************************************************
+**
+**   BLUETOOTH VENDOR INTERFACE LIBRARY FUNCTIONS
+**
+*****************************************************************************/
+
+static int init(const bt_vendor_callbacks_t* p_cb, unsigned char *local_bdaddr)
+{
+    ALOGI("init");
+
+    if (p_cb == NULL)
+    {
+        ALOGE("init failed with no user callbacks!");
+        return -1;
+    }
+
+    userial_vendor_init(BLUETOOTH_UART_DEVICE_PORT);
+    upio_init();
+    ALOGE("bt_wake_up_host_mode_set(1)");
+    bt_wake_up_host_mode_set(1);
+
+    /* store reference to user callbacks */
+    bt_vendor_cbacks = (bt_vendor_callbacks_t *) p_cb;
+
+    /* This is handed over from the stack */
+    memcpy(vnd_local_bd_addr, local_bdaddr, 6);
+
+    return 0;
+}
+
+
+
+/** Requested operations */
+static int op(bt_vendor_opcode_t opcode, void *param)
+{
+    int retval = 0;
+
+    //BTVNDDBG("op for %d", opcode);
+
+    switch(opcode)
+    {
+        case BT_VND_OP_POWER_CTRL:
+            {
+                int *state = (int *) param;
+                if (*state == BT_VND_PWR_OFF)
+                {
+                    //upio_set_bluetooth_power(UPIO_BT_POWER_OFF);
+                    //usleep(200000);
+                    //BTVNDDBG("set power off and delay 200ms");
+
+                }
+                else if (*state == BT_VND_PWR_ON)
+                {
+                    upio_set_bluetooth_power(UPIO_BT_POWER_OFF);
+                    usleep(500000);
+                    BTVNDDBG("set power off and delay 500ms");
+                    upio_set_bluetooth_power(UPIO_BT_POWER_ON);
+                    usleep(500000);
+                    BTVNDDBG("set power on and delay 500ms");
+
+                }
+            }
+            break;
+
+        case BT_VND_OP_FW_CFG:
+            {
+                hw_config_start();
+            }
+            break;
+
+        case BT_VND_OP_SCO_CFG:
+            {
+                retval = -1;
+            }
+            break;
+
+        case BT_VND_OP_USERIAL_OPEN:
+            {
+                int (*fd_array)[] = (int (*)[]) param;
+                int fd, idx;
+                fd = userial_vendor_open((tUSERIAL_CFG *) &userial_init_cfg);
+                if (fd != -1)
+                {
+                    for (idx=0; idx < CH_MAX; idx++)
+                        (*fd_array)[idx] = fd;
+
+                    retval = 1;
+                }
+                /* retval contains numbers of open fd of HCI channels */
+            }
+            break;
+
+        case BT_VND_OP_USERIAL_CLOSE:
+            {
+                userial_vendor_close();
+            }
+            break;
+
+        case BT_VND_OP_GET_LPM_IDLE_TIMEOUT:
+            {
+
+            }
+            break;
+
+        case BT_VND_OP_LPM_SET_MODE:
+            {
+
+            }
+            break;
+
+        case BT_VND_OP_LPM_WAKE_SET_STATE:
+            {
+
+            }
+            break;
+        case BT_VND_OP_EPILOG:
+            {
+#if (HW_END_WITH_HCI_RESET == FALSE)
+                if (bt_vendor_cbacks)
+                {
+                    bt_vendor_cbacks->epilog_cb(BT_VND_OP_RESULT_SUCCESS);
+                }
+#else
+                hw_epilog_process();
+#endif
+            }
+            break;
+    }
+
+    return retval;
+}
+
+/** Closes the interface */
+static void cleanup( void )
+{
+    BTVNDDBG("cleanup");
+
+    upio_cleanup();
+    ALOGE("bt_wake_up_host_mode_set(0)");
+    bt_wake_up_host_mode_set(0);
+
+    bt_vendor_cbacks = NULL;
+}
+
+// Entry point of DLib
+const bt_vendor_interface_t BLUETOOTH_VENDOR_LIB_INTERFACE = {
+    sizeof(bt_vendor_interface_t),
+    init,
+    op,
+    cleanup
+};
diff --git a/rtkbt/code/libbt-vendor/uart/src/hardware.c b/rtkbt/code/libbt-vendor/uart/src/hardware.c
new file mode 100755
index 0000000..21caa8d
--- /dev/null
+++ b/rtkbt/code/libbt-vendor/uart/src/hardware.c
@@ -0,0 +1,1616 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Realtek Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  Filename:      hardware.c
+ *
+ *  Description:   Contains controller-specific functions, like
+ *                      firmware patch download
+ *                      low power mode operations
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_hwcfg"
+
+#include <utils/Log.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <signal.h>
+#include <time.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <dirent.h>
+#include <ctype.h>
+#include <cutils/properties.h>
+#include <stdlib.h>
+#include "bt_hci_bdroid.h"
+#include "bt_vendor_rtk.h"
+#include "userial.h"
+#include "userial_vendor.h"
+#include "upio.h"
+#include <unistd.h>
+#include <endian.h>
+#include <byteswap.h>
+
+#include "bt_vendor_lib.h"
+
+
+/******************************************************************************
+**  Constants &  Macros
+******************************************************************************/
+#define RTK_VERSION "4.1.0"
+
+#ifndef BTHW_DBG
+#define BTHW_DBG FALSE
+#endif
+
+#if (BTHW_DBG == TRUE)
+#define BTHWDBG(param, ...) {ALOGD(param, ## __VA_ARGS__);}
+#else
+#define BTHWDBG(param, ...) {}
+#endif
+
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+#define cpu_to_le16(d)  (d)
+#define cpu_to_le32(d)  (d)
+#define le16_to_cpu(d)  (d)
+#define le32_to_cpu(d)  (d)
+#elif __BYTE_ORDER == __BIG_ENDIAN
+#define cpu_to_le16(d)  bswap_16(d)
+#define cpu_to_le32(d)  bswap_32(d)
+#define le16_to_cpu(d)  bswap_16(d)
+#define le32_to_cpu(d)  bswap_32(d)
+#else
+#error "Unknown byte order"
+#endif
+
+#define FIRMWARE_DIRECTORY  "/system/etc/firmware/%s"
+#define BT_CONFIG_DIRECTORY "/system/etc/firmware/%s"
+#define PATCH_DATA_FIELD_MAX_SIZE       252
+#define RTK_VENDOR_CONFIG_MAGIC         0x8723ab55
+#define MAX_PATCH_SIZE_24K            (1024*24)   //24K
+#define MAX_PATCH_SIZE_40K            (1024*40)   //40K
+
+#define MAX_ORG_CONFIG_SIZE     (0x100*14)
+#define MAX_ALT_CONFIG_SIZE     (0x100*2)
+
+struct rtk_bt_vendor_config_entry{
+    uint16_t offset;
+    uint8_t entry_len;
+    uint8_t entry_data[0];
+} __attribute__ ((packed));
+
+struct rtk_bt_vendor_config{
+    uint32_t signature;
+    uint16_t data_len;
+    struct rtk_bt_vendor_config_entry entry[0];
+} __attribute__ ((packed));
+
+#define HCI_CMD_MAX_LEN             258
+
+#define HCI_RESET                               0x0C03
+#define HCI_READ_LMP_VERSION                    0x1001
+#define HCI_VSC_H5_INIT                         0xFCEE
+#define HCI_VSC_UPDATE_BAUDRATE                 0xFC17
+#define HCI_VSC_DOWNLOAD_FW_PATCH               0xFC20
+#define HCI_VSC_READ_ROM_VERSION                0xFC6D
+#define HCI_VSC_READ_CHIP_TYPE                  0xFC61
+
+#define HCI_VERSION_MASK_10     (1<<0)     //Bluetooth Core Spec 1.0b
+#define HCI_VERSION_MASK_11     (1<<1)     //Bluetooth Core Spec 1.1
+#define HCI_VERSION_MASK_12     (1<<2)     //Bluetooth Core Spec 1.2
+#define HCI_VERSION_MASK_20     (1<<3)     //Bluetooth Core Spec 2.0+EDR
+#define HCI_VERSION_MASK_21     (1<<4)     //Bluetooth Core Spec 2.1+EDR
+#define HCI_VERSION_MASK_30     (1<<5)     //Bluetooth Core Spec 3.0+HS
+#define HCI_VERSION_MASK_40     (1<<6)     //Bluetooth Core Spec 4.0
+#define HCI_VERSION_MASK_41     (1<<7)     //Bluetooth Core Spec 4.1
+#define HCI_VERSION_MASK_42     (1<<8)     //Bluetooth Core Spec 4.2
+#define HCI_VERSION_MASK_ALL    (0xFFFFFFFF)
+
+#define HCI_REVISION_MASK_ALL   (0xFFFFFFFF)
+
+#define LMP_SUBVERSION_NONE     (0x0)
+#define LMPSUBVERSION_8723a     (0x1200)
+
+#define CHIPTYPE_NONE           (0x1F)      //Chip Type's range: 0x0 ~ 0xF
+#define CHIP_TYPE_MASK_ALL      (0xFFFFFFFF)
+
+#define PROJECT_ID_MASK_ALL     (0xFFFFFFFF)    // temp used for unknow project id for a new chip
+
+#define PATCH_OPTIONAL_MATCH_FLAG_CHIPTYPE   (0x1)
+
+#define CONFIG_MAC_OFFSET_GEN_1_2       (0x3C)      //MAC's OFFSET in config/efuse for realtek generation 1~2 bluetooth chip
+#define CONFIG_MAC_OFFSET_GEN_3PLUS     (0x44)      //MAC's OFFSET in config/efuse for rtk generation 3+ bluetooth chip
+
+#define HCI_EVT_CMD_CMPL_OPCODE_OFFSET          (3)     //opcode's offset in COMMAND Completed Event
+#define HCI_EVT_CMD_CMPL_STATUS_OFFSET          (5)     //status's offset in COMMAND Completed Event
+
+#define HCI_EVT_CMD_CMPL_OP1001_HCI_VERSION_OFFSET     (6)     //HCI_Version's offset in COMMAND Completed Event for OpCode 0x1001(Read Local Version Information Command)
+#define HCI_EVT_CMD_CMPL_OP1001_HCI_REVISION_OFFSET     (7)     //HCI_Revision's offset in COMMAND Completed Event for OpCode 0x1001(Read Local Version Information Command)
+#define HCI_EVT_CMD_CMPL_OP1001_LMP_SUBVERSION_OFFSET  (12)    //LMP Subversion's offset in COMMAND Completed Event for OpCode 0x1001(Read Local Version Information Command)
+#define HCI_EVT_CMD_CMPL_OP0C14_LOCAL_NAME_OFFSET      (6)     //Local Name's offset in COMMAND Completed Event for OpCode 0x0C14(Read Local Name Command)
+#define HCI_EVT_CMD_CMPL_OP1009_BDADDR_OFFSET    (6)     //BD_ADDR's offset in COMMAND Completed Event for OpCode 0x1009(Read BD_ADDR Command)
+#define HCI_EVT_CMD_CMPL_OPFC6D_EVERSION_OFFSET        (6)  //eversion's offset in COMMAND Completed Event for OpCode 0xfc6d(Read eVERSION Vendor Command)
+#define HCI_EVT_CMD_CMPL_OPFC61_CHIPTYPE_OFFSET        (6)  //chip type's offset in COMMAND Completed Event for OpCode 0xfc61(Read ChipType Vendor Command)
+
+//#define UPDATE_BAUDRATE_CMD_PARAM_SIZE          (6)
+#define HCI_CMD_PREAMBLE_SIZE                   (3)
+#define HCI_CMD_READ_CHIP_TYPE_SIZE             (5)
+//#define HCD_REC_PAYLOAD_LEN_BYTE                (2)
+#define BD_ADDR_LEN                             (6)
+//#define LOCAL_NAME_BUFFER_LEN                   (32)
+//#define LOCAL_BDADDR_PATH_BUFFER_LEN            (256)
+
+#define H5_SYNC_REQ_SIZE (2)
+#define H5_SYNC_RESP_SIZE (2)
+#define H5_CONF_REQ_SIZE (3)
+#define H5_CONF_RESP_SIZE (2)
+
+#define STREAM_TO_UINT16(u16, p) {u16 = ((uint16_t)(*(p)) + (((uint16_t)(*((p) + 1))) << 8)); (p) += 2;}
+#define UINT16_TO_STREAM(p, u16) {*(p)++ = (uint8_t)(u16); *(p)++ = (uint8_t)((u16) >> 8);}
+#define UINT32_TO_STREAM(p, u32) {*(p)++ = (uint8_t)(u32); *(p)++ = (uint8_t)((u32) >> 8); *(p)++ = (uint8_t)((u32) >> 16); *(p)++ = (uint8_t)((u32) >> 24);}
+#define STREAM_TO_UINT32(u32, p) {u32 = (((uint32_t)(*(p))) + ((((uint32_t)(*((p) + 1)))) << 8) + ((((uint32_t)(*((p) + 2)))) << 16) + ((((uint32_t)(*((p) + 3)))) << 24)); (p) += 4;}
+#define UINT8_TO_STREAM(p, u8)   {*(p)++ = (uint8_t)(u8);}
+/******************************************************************************
+**  Local type definitions
+******************************************************************************/
+
+/* Hardware Configuration State */
+enum {
+    HW_CFG_H5_INIT = 1,
+    HW_CFG_READ_LOCAL_VER,
+    HW_CFG_READ_ECO_VER,   //eco version
+    HW_CFG_READ_CHIP_TYPE,
+    HW_CFG_START,
+    HW_CFG_SET_UART_BAUD_HOST,//change FW baudrate
+    HW_CFG_SET_UART_BAUD_CONTROLLER,//change Host baudrate
+    HW_CFG_SET_UART_HW_FLOW_CONTROL,
+    HW_CFG_DL_FW_PATCH
+};
+
+/* h/w config control block */
+typedef struct
+{
+    uint32_t    max_patch_size;
+    uint32_t    baudrate;
+    uint16_t    lmp_subversion;
+    uint8_t     state;          /* Hardware configuration state */
+    uint8_t     eversion;
+    uint32_t    project_id_mask;
+    uint8_t     hci_version;
+    uint8_t     hci_revision;
+    uint8_t     chip_type;
+    uint8_t     dl_fw_flag;
+    int         fw_len;          /* FW patch file len */
+    int         config_len;      /* Config patch file len */
+    int         total_len;       /* FW & config extracted buf len */
+    uint8_t     *fw_buf;         /* FW patch file buf */
+    uint8_t     *config_buf;     /* Config patch file buf */
+    uint8_t     *total_buf;      /* FW & config extracted buf */
+    uint8_t     patch_frag_cnt;  /* Patch fragment count download */
+    uint8_t     patch_frag_idx;  /* Current patch fragment index */
+    uint8_t     patch_frag_len;  /* Patch fragment length */
+    uint8_t     patch_frag_tail; /* Last patch fragment length */
+    uint8_t     hw_flow_cntrl;   /* Uart flow control, bit7:set, bit0:enable */
+} bt_hw_cfg_cb_t;
+
+/* low power mode parameters */
+typedef struct
+{
+    uint8_t sleep_mode;                     /* 0(disable),1(UART),9(H5) */
+    uint8_t host_stack_idle_threshold;      /* Unit scale 300ms/25ms */
+    uint8_t host_controller_idle_threshold; /* Unit scale 300ms/25ms */
+    uint8_t bt_wake_polarity;               /* 0=Active Low, 1= Active High */
+    uint8_t host_wake_polarity;             /* 0=Active Low, 1= Active High */
+    uint8_t allow_host_sleep_during_sco;
+    uint8_t combine_sleep_mode_and_lpm;
+    uint8_t enable_uart_txd_tri_state;      /* UART_TXD Tri-State */
+    uint8_t sleep_guard_time;               /* sleep guard time in 12.5ms */
+    uint8_t wakeup_guard_time;              /* wakeup guard time in 12.5ms */
+    uint8_t txd_config;                     /* TXD is high in sleep state */
+    uint8_t pulsed_host_wake;               /* pulsed host wake if mode = 1 */
+} bt_lpm_param_t;
+
+/******************************************************************************
+**  Externs
+******************************************************************************/
+
+void hw_config_cback(void *p_evt_buf);
+extern uint8_t vnd_local_bd_addr[BD_ADDR_LEN];
+
+/******************************************************************************
+**  Static variables
+******************************************************************************/
+static bt_hw_cfg_cb_t hw_cfg_cb;
+
+//#define BT_CHIP_PROBE_SIMULATION
+#ifdef BT_CHIP_PROBE_SIMULATION
+static bt_hw_cfg_cb_t hw_cfg_test;
+struct bt_chip_char{
+    uint16_t    lmp_subversion;
+    uint8_t     hci_version;
+    uint8_t     hci_revision;
+    uint8_t     chip_type;
+};
+struct bt_chip_char bt_chip_chars[] = \
+{
+        {0x8723, 0x4, 0xb, CHIPTYPE_NONE},      //8703as
+        {0x8723, 0x6, 0xb, CHIPTYPE_NONE},      //8723bs
+        {0x8703, 0x4, 0xd, 0x7},                //8703bs
+        {0x8703, 0x6, 0xb, 0x3},                //8723cs-cg
+        {0x8703, 0x6, 0xb, 0x4},                //8723cs-vf
+        {0x8703, 0x6, 0xb, 0x5},                //8723cs-xx
+        {0x8723, 0x6, 0xd, CHIPTYPE_NONE},      //8723ds
+};
+#endif
+static bt_lpm_param_t lpm_param =
+{
+    LPM_SLEEP_MODE,
+    LPM_IDLE_THRESHOLD,
+    LPM_HC_IDLE_THRESHOLD,
+    LPM_BT_WAKE_POLARITY,
+    LPM_HOST_WAKE_POLARITY,
+    LPM_ALLOW_HOST_SLEEP_DURING_SCO,
+    LPM_COMBINE_SLEEP_MODE_AND_LPM,
+    LPM_ENABLE_UART_TXD_TRI_STATE,
+    0,  /* not applicable */
+    0,  /* not applicable */
+    0,  /* not applicable */
+    LPM_PULSED_HOST_WAKE
+};
+
+//signature: realtech
+const uint8_t RTK_EPATCH_SIGNATURE[8]={0x52,0x65,0x61,0x6C,0x74,0x65,0x63,0x68};
+//Extension Section IGNATURE:0x77FD0451
+const uint8_t EXTENSION_SECTION_SIGNATURE[4]={0x51,0x04,0xFD,0x77};
+
+typedef struct {
+    uint16_t    lmp_subversion;
+    uint32_t     hci_version_mask;
+    uint32_t     hci_revision_mask;
+    uint32_t     chip_type_mask;
+    uint32_t     project_id_mask;
+    char        *patch_name;
+    char        *config_name;
+    uint16_t     mac_offset;
+    uint32_t    max_patch_size;
+} patch_info;
+
+static patch_info patch_table[] = {
+/*    lmp_subv                      hci_version_mask                    hci_revision_mask                chip_type_mask              project_id_mask                 fw name                                 config name                         mac offset                         max_patch_size  */
+    {0x1200,            HCI_VERSION_MASK_ALL,    HCI_REVISION_MASK_ALL, CHIP_TYPE_MASK_ALL,  1<<0,                  "rtl8723as_fw",         "rtl8723as_config",     CONFIG_MAC_OFFSET_GEN_1_2,  MAX_PATCH_SIZE_24K},    //Rtl8723AS
+
+    {0x8723,            ~(HCI_VERSION_MASK_21),  ~(1<<0xd),             CHIP_TYPE_MASK_ALL,  1<<1,                  "rtl8723bs_fw",         "rtl8723bs_config",     CONFIG_MAC_OFFSET_GEN_1_2,  MAX_PATCH_SIZE_24K},     //Rtl8723BS
+//    {0x8723,            ~(HCI_VERSION_MASK_21),  ~(1<<0xd),             CHIP_TYPE_MASK_ALL,  1<<1,                  "rtl8723bs_VQ0_fw",     "rtl8723bs_VQ0_config", CONFIG_MAC_OFFSET_GEN_1_2}, //Rtl8723BS_VQ0
+    {0x8821,            HCI_VERSION_MASK_ALL,    ~(1<<0xc),             CHIP_TYPE_MASK_ALL,  1<<2,                  "rtl8821as_fw",         "rtl8821as_config",     CONFIG_MAC_OFFSET_GEN_1_2,  MAX_PATCH_SIZE_24K},     //Rtl8821AS
+    {0x8761,            HCI_VERSION_MASK_ALL,    HCI_REVISION_MASK_ALL, CHIP_TYPE_MASK_ALL,  1<<3,                  "rtl8761at_fw",         "rtl8761at_config",     CONFIG_MAC_OFFSET_GEN_1_2,  MAX_PATCH_SIZE_24K},     //Rtl8761AW
+    {0x8723,            HCI_VERSION_MASK_21,     HCI_REVISION_MASK_ALL, CHIP_TYPE_MASK_ALL,  1<<4,                  "rtl8703as_fw",         "rtl8703as_config",     CONFIG_MAC_OFFSET_GEN_1_2,  MAX_PATCH_SIZE_24K},     //Rtl8703AS
+
+    {0x8703,            HCI_VERSION_MASK_ALL,    HCI_REVISION_MASK_ALL, 1<<7,                1<<6,                  "rtl8703bs_fw",         "rtl8703bs_config",     CONFIG_MAC_OFFSET_GEN_3PLUS,  MAX_PATCH_SIZE_24K},     //Rtl8703BS
+    {0x8703,            HCI_VERSION_MASK_ALL,    HCI_REVISION_MASK_ALL, 1<<5,                1<<7,                  "rtl8723cs_xx_fw",      "rtl8723cs_xx_config",  CONFIG_MAC_OFFSET_GEN_3PLUS,  MAX_PATCH_SIZE_24K},     //rtl8723cs_xx
+    {0x8703,            HCI_VERSION_MASK_ALL,    HCI_REVISION_MASK_ALL, 1<<3,                1<<7,                  "rtl8723cs_cg_fw",      "rtl8723cs_cg_config",  CONFIG_MAC_OFFSET_GEN_3PLUS,  MAX_PATCH_SIZE_24K},     //rtl8723cs_cg
+    {0x8703,            HCI_VERSION_MASK_ALL,    HCI_REVISION_MASK_ALL, 1<<4,                1<<7,                  "rtl8723cs_vf_fw",      "rtl8723cs_vf_config",  CONFIG_MAC_OFFSET_GEN_3PLUS,  MAX_PATCH_SIZE_24K},     //rtl8723cs_vf
+    {0x8822,            HCI_VERSION_MASK_ALL,    HCI_REVISION_MASK_ALL, CHIP_TYPE_MASK_ALL,  1<<8,                  "rtl8822bs_fw",         "rtl8822bs_config",     CONFIG_MAC_OFFSET_GEN_3PLUS,  MAX_PATCH_SIZE_24K},     //Rtl8822BS
+
+    {0x8723,            HCI_VERSION_MASK_ALL,    (1<<0xd),              ~(1<<7),           1<<9,                    "rtl8723ds_fw",         "rtl8723ds_config",     CONFIG_MAC_OFFSET_GEN_3PLUS,  MAX_PATCH_SIZE_40K}, //Rtl8723ds
+    {0x8723,            HCI_VERSION_MASK_ALL,    (1<<0xd),              1<<7,              1<<9,                    "rtl8703cs_fw",         "rtl8703cs_config",     CONFIG_MAC_OFFSET_GEN_3PLUS,  MAX_PATCH_SIZE_40K}, //Rtl8703cs
+    {0x8821,            HCI_VERSION_MASK_ALL,    (1<<0xc),              CHIP_TYPE_MASK_ALL,  1<<10,                 "rtl8821cs_fw",         "rtl8821cs_config",     CONFIG_MAC_OFFSET_GEN_3PLUS,  MAX_PATCH_SIZE_40K}, //RTL8821CS
+/*  todo: RTL8703CS */
+
+    {LMP_SUBVERSION_NONE,HCI_VERSION_MASK_ALL,   HCI_REVISION_MASK_ALL, CHIP_TYPE_MASK_ALL, PROJECT_ID_MASK_ALL,    "rtl_none_fw",          "rtl_none_config",      CONFIG_MAC_OFFSET_GEN_1_2,  MAX_PATCH_SIZE_24K}
+};
+
+struct rtk_epatch_entry{
+    uint16_t chip_id;
+    uint16_t patch_length;
+    uint32_t patch_offset;
+    uint32_t svn_version;
+    uint32_t coex_version;
+} __attribute__ ((packed));
+
+struct rtk_epatch{
+    uint8_t signature[8];
+    uint32_t fw_version;
+    uint16_t number_of_patch;
+    struct rtk_epatch_entry entry[0];
+} __attribute__ ((packed));
+
+
+int check_match_state(bt_hw_cfg_cb_t *cfg,uint32_t mask)
+{
+    patch_info  *patch_entry;
+    int res = 0;
+
+    for(patch_entry = patch_table; patch_entry->lmp_subversion != LMP_SUBVERSION_NONE; patch_entry++) {
+        if(patch_entry->lmp_subversion != cfg->lmp_subversion)
+            continue;
+        if((patch_entry->hci_version_mask!=HCI_VERSION_MASK_ALL)&&((patch_entry->hci_version_mask&(1<<cfg->hci_version))==0))
+             continue;
+        if((patch_entry->hci_revision_mask!=HCI_REVISION_MASK_ALL)&&((patch_entry->hci_revision_mask&(1<<cfg->hci_revision))==0))
+             continue;
+        if((mask&PATCH_OPTIONAL_MATCH_FLAG_CHIPTYPE)&&(patch_entry->chip_type_mask != CHIP_TYPE_MASK_ALL)&&((patch_entry->chip_type_mask&(1<<cfg->chip_type))==0))
+             continue;
+        res++;
+    }
+    ALOGI( "check_match_state return %d(cfg->lmp_subversion:0x%x cfg->hci_vesion:0x%x cfg->hci_revision:0x%x cfg->chip_type:0x%x mask:%08x)\n",
+            res, cfg->lmp_subversion, cfg->hci_version, cfg->hci_revision, cfg->chip_type, mask);
+    return res;
+}
+patch_info* get_patch_entry(bt_hw_cfg_cb_t *cfg)
+{
+    patch_info  *patch_entry;
+
+    ALOGI("get_patch_entry(lmp_subversion:0x%x hci_vesion:0x%x cfg->hci_revision:0x%x chip_type:0x%x)\n",
+            cfg->lmp_subversion, cfg->hci_version, cfg->hci_revision, cfg->chip_type);
+    for(patch_entry = patch_table; patch_entry->lmp_subversion != LMP_SUBVERSION_NONE; patch_entry++) {
+        if(patch_entry->lmp_subversion != cfg->lmp_subversion)
+            continue;
+        if((patch_entry->hci_version_mask != HCI_VERSION_MASK_ALL)&&((patch_entry->hci_version_mask&(1<<cfg->hci_version)) == 0))
+             continue;
+        if((patch_entry->hci_revision_mask != HCI_REVISION_MASK_ALL)&&((patch_entry->hci_revision_mask&(1<<cfg->hci_revision)) == 0))
+             continue;
+        if((patch_entry->chip_type_mask != CHIP_TYPE_MASK_ALL)&&((patch_entry->chip_type_mask&(1<<cfg->chip_type)) == 0))
+             continue;
+        break;
+    }
+    ALOGI("get_patch_entry return(patch_name:%s config_name:%s mac_offset:0x%x)\n",
+            patch_entry->patch_name, patch_entry->config_name, patch_entry->mac_offset);
+    return patch_entry;
+}
+
+/*******************************************************************************
+**
+** Function        ms_delay
+**
+** Description     sleep unconditionally for timeout milliseconds
+**
+** Returns         None
+**
+*******************************************************************************/
+void ms_delay (uint32_t timeout)
+{
+    struct timespec delay;
+    int err;
+
+    if (timeout == 0)
+        return;
+
+    delay.tv_sec = timeout / 1000;
+    delay.tv_nsec = 1000 * 1000 * (timeout%1000);
+
+    /* [u]sleep can't be used because it uses SIGALRM */
+    do {
+        err = nanosleep(&delay, &delay);
+    } while (err < 0 && errno ==EINTR);
+}
+
+/*******************************************************************************
+**
+** Function        line_speed_to_userial_baud
+**
+** Description     helper function converts line speed number into USERIAL baud
+**                 rate symbol
+**
+** Returns         unit8_t (USERIAL baud symbol)
+**
+*******************************************************************************/
+uint8_t line_speed_to_userial_baud(uint32_t line_speed)
+{
+    uint8_t baud;
+
+    if (line_speed == 4000000)
+        baud = USERIAL_BAUD_4M;
+    else if (line_speed == 3000000)
+        baud = USERIAL_BAUD_3M;
+    else if (line_speed == 2000000)
+        baud = USERIAL_BAUD_2M;
+    else if (line_speed == 1500000)
+        baud = USERIAL_BAUD_1_5M;
+    else if (line_speed == 1000000)
+        baud = USERIAL_BAUD_1M;
+    else if (line_speed == 921600)
+        baud = USERIAL_BAUD_921600;
+    else if (line_speed == 460800)
+        baud = USERIAL_BAUD_460800;
+    else if (line_speed == 230400)
+        baud = USERIAL_BAUD_230400;
+    else if (line_speed == 115200)
+        baud = USERIAL_BAUD_115200;
+    else if (line_speed == 57600)
+        baud = USERIAL_BAUD_57600;
+    else if (line_speed == 19200)
+        baud = USERIAL_BAUD_19200;
+    else if (line_speed == 9600)
+        baud = USERIAL_BAUD_9600;
+    else if (line_speed == 1200)
+        baud = USERIAL_BAUD_1200;
+    else if (line_speed == 600)
+        baud = USERIAL_BAUD_600;
+    else
+    {
+        ALOGE( "userial vendor: unsupported baud speed %d", line_speed);
+        baud = USERIAL_BAUD_115200;
+    }
+
+    return baud;
+}
+
+typedef struct _baudrate_ex
+{
+    uint32_t rtk_speed;
+    uint32_t uart_speed;
+}baudrate_ex;
+
+baudrate_ex baudrates[] =
+{
+    {0x00006004, 921600},
+    {0x05F75004, 921600},//RTL8723BS
+    {0x00004003, 1500000},
+    {0x04928002, 1500000},//RTL8723BS
+    {0x00005002, 2000000},//same as RTL8723AS
+    {0x00008001, 3000000},
+    {0x04928001, 3000000},//RTL8723BS
+    {0x06B58001, 3000000},//add RTL8703as
+    {0x00007001, 3500000},
+    {0x052A6001, 3500000},//RTL8723BS
+    {0x00005001, 4000000},//same as RTL8723AS
+    {0x0000701d, 115200},
+    {0x0252C014, 115200}//RTL8723BS
+};
+
+/**
+* Change realtek Bluetooth speed to uart speed. It is matching in the struct baudrates:
+*
+* @code
+* baudrate_ex baudrates[] =
+* {
+*   {0x7001, 3500000},
+*   {0x6004, 921600},
+*   {0x4003, 1500000},
+*   {0x5001, 4000000},
+*   {0x5002, 2000000},
+*   {0x8001, 3000000},
+*   {0x701d, 115200}
+* };
+* @endcode
+*
+* If there is no match in baudrates, uart speed will be set as #115200.
+*
+* @param rtk_speed realtek Bluetooth speed
+* @param uart_speed uart speed
+*
+*/
+static void rtk_speed_to_uart_speed(uint32_t rtk_speed, uint32_t* uart_speed)
+{
+    *uart_speed = 115200;
+
+    uint8_t i;
+    for (i=0; i< sizeof(baudrates)/sizeof(baudrate_ex); i++)
+    {
+        if (baudrates[i].rtk_speed == rtk_speed)
+        {
+            *uart_speed = baudrates[i].uart_speed;
+            return;
+        }
+    }
+    return;
+}
+
+/**
+* Change uart speed to realtek Bluetooth speed. It is matching in the struct baudrates:
+*
+* @code
+* baudrate_ex baudrates[] =
+* {
+*   {0x7001, 3500000},
+*   {0x6004, 921600},
+*   {0x4003, 1500000},
+*   {0x5001, 4000000},
+*   {0x5002, 2000000},
+*   {0x8001, 3000000},
+*   {0x701d, 115200}
+* };
+* @endcode
+*
+* If there is no match in baudrates, realtek Bluetooth speed will be set as #0x701D.
+*
+* @param uart_speed uart speed
+* @param rtk_speed realtek Bluetooth speed
+*
+*/
+static inline void uart_speed_to_rtk_speed(uint32_t uart_speed, uint32_t* rtk_speed)
+{
+    *rtk_speed = 0x701D;
+
+    unsigned int i;
+    for (i=0; i< sizeof(baudrates)/sizeof(baudrate_ex); i++)
+    {
+      if (baudrates[i].uart_speed == uart_speed)
+      {
+          *rtk_speed = baudrates[i].rtk_speed;
+          return;
+      }
+    }
+    return;
+}
+
+
+/*******************************************************************************
+**
+** Function         hw_config_set_bdaddr
+**
+** Description      Program controller's Bluetooth Device Address
+**
+** Returns          TRUE, if valid address is sent
+**                  FALSE, otherwise
+**
+*******************************************************************************/
+static uint8_t hw_config_set_controller_baudrate(HC_BT_HDR *p_buf, uint32_t baudrate)
+{
+    uint8_t retval = FALSE;
+    uint8_t *p = (uint8_t *) (p_buf + 1);
+
+    UINT16_TO_STREAM(p, HCI_VSC_UPDATE_BAUDRATE);
+    *p++ = 4; /* parameter length */
+    UINT32_TO_STREAM(p, baudrate);
+
+    p_buf->len = HCI_CMD_PREAMBLE_SIZE + 4;
+
+    retval = bt_vendor_cbacks->xmit_cb(HCI_VSC_UPDATE_BAUDRATE, p_buf, \
+                                 hw_config_cback);
+
+    return (retval);
+}
+
+static int getmacaddr(unsigned char * addr)
+{
+    int i = 0;
+    char data[256], *str;
+    int addr_fd;
+
+    if ((addr_fd = open("/data/misc/bluetooth/bdaddr", O_RDONLY)) != -1)
+    {
+        memset(data, 0, sizeof(data));
+        read(addr_fd, data, 17);
+        for (i = 0,str = data; i < 6; i++) {
+           addr[5-i] = (unsigned char)strtoul(str, &str, 16);
+           str++;
+        }
+        close(addr_fd);
+        return 0;
+    }
+    return -1;
+}
+
+static inline int getAltSettings(patch_info *patch_entry, unsigned short *offset, int max_group_cnt)
+{
+    int n = 0;
+    if(patch_entry)
+        offset[n++] = patch_entry->mac_offset;
+/*
+//sample code, add special settings
+
+    offset[n++] = 0x15B;
+*/
+    return n;
+}
+static inline int getAltSettingVal(patch_info *patch_entry, unsigned short offset, unsigned char * val)
+{
+    int res = 0;
+
+    switch(offset)
+    {
+/*
+//sample code, add special settings
+        case 0x15B:
+            val[0] = 0x0B;
+            val[1] = 0x0B;
+            val[2] = 0x0B;
+            val[3] = 0x0B;
+            res = 4;
+            break;
+*/
+        default:
+            res = 0;
+            break;
+    }
+    if((patch_entry)&&(offset == patch_entry->mac_offset)&&(res == 0))
+    {
+        if(getmacaddr(val) == 0){
+            ALOGI("MAC: %02x:%02x:%02x:%02x:%02x:%02x", val[5], val[4], val[3], val[2], val[1], val[0]);
+            res = 6;
+        }
+    }
+    return res;
+}
+
+void rtk_update_altsettings(patch_info *patch_entry, unsigned char* config_buf_ptr, size_t *config_len_ptr)
+{
+    unsigned short offset[256], data_len;
+    unsigned char val[256];
+
+    struct rtk_bt_vendor_config* config = (struct rtk_bt_vendor_config*) config_buf_ptr;
+    struct rtk_bt_vendor_config_entry* entry = config->entry;
+    size_t config_len = *config_len_ptr;
+    int count = 0,temp = 0, i = 0, j;
+
+    ALOGI("ORG Config len=%08x:\n", config_len);
+    for(i=0;i<=config_len;i+=0x10)
+    {
+        ALOGI("%08x: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n", i, \
+            config_buf_ptr[i], config_buf_ptr[i+1], config_buf_ptr[i+2], config_buf_ptr[i+3], config_buf_ptr[i+4], config_buf_ptr[i+5], config_buf_ptr[i+6], config_buf_ptr[i+7], \
+            config_buf_ptr[i+8], config_buf_ptr[i+9], config_buf_ptr[i+10], config_buf_ptr[i+11], config_buf_ptr[i+12], config_buf_ptr[i+13], config_buf_ptr[i+14], config_buf_ptr[i+15]);
+    }
+
+    memset(offset, 0, sizeof(offset));
+    memset(val, 0, sizeof(val));
+    data_len = le16_to_cpu(config->data_len);
+
+    count = getAltSettings(patch_entry, offset, sizeof(offset)/sizeof(unsigned short));
+    if(count <= 0){
+        ALOGI("rtk_update_altsettings: No AltSettings");
+        return;
+    }else{
+        ALOGI("rtk_update_altsettings: %d AltSettings", count);
+    }
+
+    if (data_len != config_len - sizeof(struct rtk_bt_vendor_config))
+    {
+        ALOGE("rtk_update_altsettings: config len(%x) is not right(%x)", data_len, config_len-sizeof(struct rtk_bt_vendor_config));
+        return;
+    }
+
+    for (i=0; i<data_len;)
+    {
+        for(j = 0; j < count;j++)
+        {
+            if(le16_to_cpu(entry->offset) == offset[j])
+                offset[j] = 0;
+        }
+        if(getAltSettingVal(patch_entry, le16_to_cpu(entry->offset), val) == entry->entry_len){
+            ALOGI("rtk_update_altsettings: replace %04x[%02x]", le16_to_cpu(entry->offset), entry->entry_len);
+            memcpy(entry->entry_data, val, entry->entry_len);
+        }
+        temp = entry->entry_len + sizeof(struct rtk_bt_vendor_config_entry);
+        i += temp;
+        entry = (struct rtk_bt_vendor_config_entry*)((uint8_t*)entry + temp);
+    }
+    for(j = 0; j < count;j++){
+        if(offset[j] == 0)
+            continue;
+        entry->entry_len = getAltSettingVal(patch_entry, offset[j], val);
+        if(entry->entry_len <= 0)
+            continue;
+        entry->offset = cpu_to_le16(offset[j]);
+        memcpy(entry->entry_data, val, entry->entry_len);
+        ALOGI("rtk_update_altsettings: add %04x[%02x]", le16_to_cpu(entry->offset), entry->entry_len);
+        temp = entry->entry_len + sizeof(struct rtk_bt_vendor_config_entry);
+        i += temp;
+        entry = (struct rtk_bt_vendor_config_entry*)((uint8_t*)entry + temp);
+    }
+    config->data_len = cpu_to_le16(i);
+    *config_len_ptr = i+sizeof(struct rtk_bt_vendor_config);
+
+    ALOGI("NEW Config len=%08x:\n", *config_len_ptr);
+    for(i=0;i<=(*config_len_ptr);i+=0x10)
+    {
+        ALOGI("%08x: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n", i, \
+            config_buf_ptr[i], config_buf_ptr[i+1], config_buf_ptr[i+2], config_buf_ptr[i+3], config_buf_ptr[i+4], config_buf_ptr[i+5], config_buf_ptr[i+6], config_buf_ptr[i+7], \
+            config_buf_ptr[i+8], config_buf_ptr[i+9], config_buf_ptr[i+10], config_buf_ptr[i+11], config_buf_ptr[i+12], config_buf_ptr[i+13], config_buf_ptr[i+14], config_buf_ptr[i+15]);
+    }
+    return;
+}
+
+uint32_t rtk_parse_config_file(unsigned char** config_buf, size_t* filelen, uint8_t bt_addr[6], uint16_t mac_offset)
+{
+    struct rtk_bt_vendor_config* config = (struct rtk_bt_vendor_config*) *config_buf;
+    uint16_t config_len = le16_to_cpu(config->data_len), temp = 0;
+    struct rtk_bt_vendor_config_entry* entry = config->entry;
+    unsigned int i = 0;
+    uint32_t baudrate = 0;
+    uint32_t config_has_bdaddr = 0;
+    uint8_t *p;
+
+    if (le32_to_cpu(config->signature) != RTK_VENDOR_CONFIG_MAGIC)
+    {
+        ALOGE("config signature magic number(0x%x) is not set to RTK_VENDOR_CONFIG_MAGIC", config->signature);
+        return 0;
+    }
+
+    if (config_len != *filelen - sizeof(struct rtk_bt_vendor_config))
+    {
+        ALOGE("config len(0x%x) is not right(0x%x)", config_len, *filelen-sizeof(struct rtk_bt_vendor_config));
+        return 0;
+    }
+
+    for (i=0; i<config_len;)
+    {
+        switch(le16_to_cpu(entry->offset))
+        {
+            case 0xc:
+            {
+                p = (uint8_t *)entry->entry_data;
+                STREAM_TO_UINT32(baudrate, p);
+                if (entry->entry_len >= 12)
+                {
+                    hw_cfg_cb.hw_flow_cntrl |= 0x80; /* bit7 set hw flow control */
+                    if (entry->entry_data[12] & 0x04) /* offset 0x18, bit2 */
+                        hw_cfg_cb.hw_flow_cntrl |= 1; /* bit0 enable hw flow control */
+                }
+
+                ALOGI("config baud rate to :0x%08x, hwflowcontrol:0x%x, 0x%x", baudrate, entry->entry_data[12], hw_cfg_cb.hw_flow_cntrl);
+                break;
+            }
+            default:
+                ALOGI("config offset(0x%x),length(0x%x)", entry->offset, entry->entry_len);
+                break;
+        }
+        temp = entry->entry_len + sizeof(struct rtk_bt_vendor_config_entry);
+        i += temp;
+        entry = (struct rtk_bt_vendor_config_entry*)((uint8_t*)entry + temp);
+    }
+
+    return baudrate;
+}
+
+uint32_t rtk_get_bt_config(unsigned char** config_buf,
+        uint32_t* config_baud_rate, char * config_file_short_name, uint16_t mac_offset)
+{
+    char bt_config_file_name[PATH_MAX] = {0};
+    struct stat st;
+    size_t filelen;
+    int fd;
+    FILE* file = NULL;
+
+    sprintf(bt_config_file_name, BT_CONFIG_DIRECTORY, config_file_short_name);
+    ALOGI("BT config file: %s", bt_config_file_name);
+
+    if (stat(bt_config_file_name, &st) < 0)
+    {
+        ALOGE("can't access bt config file:%s, errno:%d\n", bt_config_file_name, errno);
+        return -1;
+    }
+
+    filelen = st.st_size;
+    if(filelen > MAX_ORG_CONFIG_SIZE)
+    {
+        ALOGE("bt config file is too large(>0x%04x)", MAX_ORG_CONFIG_SIZE);
+        return -1;
+    }
+
+    if ((fd = open(bt_config_file_name, O_RDONLY)) < 0)
+    {
+        ALOGE("Can't open bt config file");
+        return -1;
+    }
+
+    if ((*config_buf = malloc(MAX_ORG_CONFIG_SIZE+MAX_ALT_CONFIG_SIZE)) == NULL)
+    {
+        ALOGE("malloc buffer for config file fail(0x%x)\n", filelen);
+        close(fd);
+        return -1;
+    }
+
+    if (read(fd, *config_buf, filelen) < (ssize_t)filelen)
+    {
+        ALOGE("Can't load bt config file");
+        free(*config_buf);
+        close(fd);
+        return -1;
+    }
+
+    *config_baud_rate = rtk_parse_config_file(config_buf, &filelen, vnd_local_bd_addr, mac_offset);
+    ALOGI("Get config baud rate from config file:0x%x", *config_baud_rate);
+
+    close(fd);
+    return filelen;
+}
+
+int rtk_get_bt_firmware(uint8_t** fw_buf, char* fw_short_name)
+{
+    char filename[PATH_MAX] = {0};
+    struct stat st;
+    int fd = -1;
+    size_t fwsize = 0;
+    size_t buf_size = 0;
+
+    sprintf(filename, FIRMWARE_DIRECTORY, fw_short_name);
+    ALOGI("BT fw file: %s", filename);
+
+    if (stat(filename, &st) < 0)
+    {
+        ALOGE("Can't access firmware, errno:%d", errno);
+        return -1;
+    }
+
+    fwsize = st.st_size;
+    buf_size = fwsize;
+
+    if ((fd = open(filename, O_RDONLY)) < 0)
+    {
+        ALOGE("Can't open firmware, errno:%d", errno);
+        return -1;
+    }
+
+    if (!(*fw_buf = malloc(buf_size)))
+    {
+        ALOGE("Can't alloc memory for fw&config, errno:%d", errno);
+        if (fd >= 0)
+        close(fd);
+        return -1;
+    }
+
+    if (read(fd, *fw_buf, fwsize) < (ssize_t) fwsize)
+    {
+        free(*fw_buf);
+        *fw_buf = NULL;
+        if (fd >= 0)
+        close(fd);
+        return -1;
+    }
+
+    if (fd >= 0)
+        close(fd);
+
+    ALOGI("Load FW OK");
+    return buf_size;
+}
+
+uint8_t rtk_get_fw_project_id(uint8_t *p_buf)
+{
+    uint8_t opcode;
+    uint8_t len;
+    uint8_t data = 0;
+
+    do {
+        opcode = *p_buf;
+        len = *(p_buf - 1);
+        if (opcode == 0x00)
+        {
+            if (len == 1)
+            {
+                data = *(p_buf - 2);
+                ALOGI("bt_hw_parse_project_id: opcode %d, len %d, data %d", opcode, len, data);
+                break;
+            }
+            else
+            {
+                ALOGW("bt_hw_parse_project_id: invalid len %d", len);
+            }
+        }
+        p_buf -= len + 2;
+    } while (*p_buf != 0xFF);
+
+    return data;
+}
+
+struct rtk_epatch_entry *rtk_get_patch_entry(bt_hw_cfg_cb_t *cfg_cb)
+{
+    uint16_t i;
+    struct rtk_epatch *patch;
+    struct rtk_epatch_entry *entry;
+    uint8_t *p;
+    uint16_t chip_id;
+
+    patch = (struct rtk_epatch *)cfg_cb->fw_buf;
+    entry = (struct rtk_epatch_entry *)malloc(sizeof(*entry));
+    if(!entry)
+    {
+        ALOGE("rtk_get_patch_entry: failed to allocate mem for patch entry");
+        return NULL;
+    }
+
+    patch->number_of_patch = le16_to_cpu(patch->number_of_patch);
+
+    ALOGI("rtk_get_patch_entry: fw_ver 0x%08x, patch_num %d",
+                le32_to_cpu(patch->fw_version), patch->number_of_patch);
+
+    for (i = 0; i < patch->number_of_patch; i++)
+    {
+        p = cfg_cb->fw_buf + 14 + 2*i;
+        STREAM_TO_UINT16(chip_id, p);
+        if (chip_id == cfg_cb->eversion + 1)
+        {
+            entry->chip_id = chip_id;
+            p = cfg_cb->fw_buf + 14 + 2*patch->number_of_patch + 2*i;
+            STREAM_TO_UINT16(entry->patch_length, p);
+            p = cfg_cb->fw_buf + 14 + 4*patch->number_of_patch + 4*i;
+            STREAM_TO_UINT32(entry->patch_offset, p);
+            ALOGI("rtk_get_patch_entry: chip_id %d, patch_len 0x%x, patch_offset 0x%x",
+                    entry->chip_id, entry->patch_length, entry->patch_offset);
+            break;
+        }
+    }
+
+    if (i == patch->number_of_patch)
+    {
+        ALOGE("rtk_get_patch_entry: failed to get etnry");
+        free(entry);
+        entry = NULL;
+    }
+
+    return entry;
+}
+
+void rtk_get_bt_final_patch(bt_hw_cfg_cb_t* cfg_cb)
+{
+    uint8_t proj_id = 0;
+    struct rtk_epatch_entry* entry = NULL;
+    struct rtk_epatch *patch = (struct rtk_epatch *)cfg_cb->fw_buf;
+    int iBtCalLen = 0;
+
+    if(cfg_cb->lmp_subversion == LMPSUBVERSION_8723a)
+    {
+        if(memcmp(cfg_cb->fw_buf, RTK_EPATCH_SIGNATURE, 8) == 0)
+        {
+            ALOGE("8723as check signature error!");
+            cfg_cb->dl_fw_flag = 0;
+            goto free_buf;
+        }
+        else
+        {
+            cfg_cb->total_len = cfg_cb->fw_len + cfg_cb->config_len;
+            if (!(cfg_cb->total_buf = malloc(cfg_cb->total_len)))
+            {
+                ALOGE("can't alloc memory for fw&config, errno:%d", errno);
+                cfg_cb->dl_fw_flag = 0;
+                goto free_buf;
+            }
+            else
+            {
+                ALOGI("8723as, fw copy direct");
+                memcpy(cfg_cb->total_buf, cfg_cb->fw_buf, cfg_cb->fw_len);
+                memcpy(cfg_cb->total_buf+cfg_cb->fw_len, cfg_cb->config_buf, cfg_cb->config_len);
+                cfg_cb->dl_fw_flag = 1;
+                goto free_buf;
+            }
+        }
+    }
+
+    if (memcmp(cfg_cb->fw_buf, RTK_EPATCH_SIGNATURE, 8))
+    {
+        ALOGE("check signature error");
+        cfg_cb->dl_fw_flag = 0;
+        goto free_buf;
+    }
+
+    /* check the extension section signature */
+    if (memcmp(cfg_cb->fw_buf + cfg_cb->fw_len - 4, EXTENSION_SECTION_SIGNATURE, 4))
+    {
+        ALOGE("check extension section signature error");
+        cfg_cb->dl_fw_flag = 0;
+        goto free_buf;
+    }
+
+    proj_id = rtk_get_fw_project_id(cfg_cb->fw_buf + cfg_cb->fw_len - 5);
+
+    if((hw_cfg_cb.project_id_mask != PROJECT_ID_MASK_ALL)&& ((hw_cfg_cb.project_id_mask&(1<<proj_id)) ==0))
+    {
+        ALOGE("hw_cfg_cb.project_id_mask is 0x%08x, fw project_id is %d, does not match!!!",
+                        hw_cfg_cb.project_id_mask, proj_id);
+        cfg_cb->dl_fw_flag = 0;
+        goto free_buf;
+    }
+
+    entry = rtk_get_patch_entry(cfg_cb);
+    if (entry)
+    {
+        cfg_cb->total_len = entry->patch_length + cfg_cb->config_len;
+    }
+    else
+    {
+        cfg_cb->dl_fw_flag = 0;
+        goto free_buf;
+    }
+
+    ALOGI("total_len = 0x%x", cfg_cb->total_len);
+
+    if (!(cfg_cb->total_buf = malloc(cfg_cb->total_len)))
+    {
+        ALOGE("Can't alloc memory for multi fw&config, errno:%d", errno);
+        cfg_cb->dl_fw_flag = 0;
+        goto free_buf;
+    }
+    else
+    {
+        memcpy(cfg_cb->total_buf, cfg_cb->fw_buf + entry->patch_offset, entry->patch_length);
+        memcpy(cfg_cb->total_buf + entry->patch_length - 4, &patch->fw_version, 4);
+        memcpy(&entry->svn_version, cfg_cb->total_buf + entry->patch_length - 8, 4);
+        memcpy(&entry->coex_version, cfg_cb->total_buf + entry->patch_length - 12, 4);
+        ALOGI("BTCOEX:20%06d-%04x svn_version:%d lmp_subversion:0x%x hci_version:0x%x hci_revision:0x%x chip_type:%d Cut:%d libbt-vendor_uart version:%s\n",
+        ((entry->coex_version >> 16) & 0x7ff) + ((entry->coex_version >> 27) * 10000),
+        (entry->coex_version & 0xffff), entry->svn_version, cfg_cb->lmp_subversion, cfg_cb->hci_version, cfg_cb->hci_revision, cfg_cb->chip_type, cfg_cb->eversion+1, RTK_VERSION);
+    }
+
+    if (cfg_cb->config_len)
+    {
+        memcpy(cfg_cb->total_buf+entry->patch_length, cfg_cb->config_buf, cfg_cb->config_len);
+    }
+
+    cfg_cb->dl_fw_flag = 1;
+    ALOGI("Fw:%s exists, config file:%s exists", (cfg_cb->fw_len>0)?"":"not", (cfg_cb->config_len>0)?"":"not");
+
+free_buf:
+    if (cfg_cb->fw_len > 0)
+    {
+        free(cfg_cb->fw_buf);
+        cfg_cb->fw_len = 0;
+    }
+
+    if (cfg_cb->config_len > 0)
+    {
+        free(cfg_cb->config_buf);
+        cfg_cb->config_len = 0;
+    }
+
+    if(entry)
+    {
+        free(entry);
+    }
+}
+
+static int hci_download_patch_h4(HC_BT_HDR *p_buf, int index, uint8_t *data, int len)
+{
+    uint8_t retval = FALSE;
+    uint8_t *p = (uint8_t *) (p_buf + 1);
+
+    UINT16_TO_STREAM(p, HCI_VSC_DOWNLOAD_FW_PATCH);
+    *p++ = 1 + len;  /* parameter length */
+    *p++ = index;
+    memcpy(p, data, len);
+    p_buf->len = HCI_CMD_PREAMBLE_SIZE + 1+len;
+
+    hw_cfg_cb.state = HW_CFG_DL_FW_PATCH;
+
+    retval = bt_vendor_cbacks->xmit_cb(HCI_VSC_DOWNLOAD_FW_PATCH, p_buf, hw_config_cback);
+    return retval;
+}
+
+/*******************************************************************************
+**
+** Function         hw_config_cback
+**
+** Description      Callback function for controller configuration
+**
+** Returns          None
+**
+*******************************************************************************/
+void hw_config_cback(void *p_mem)
+{
+    HC_BT_HDR   *p_evt_buf = NULL;
+    uint8_t     *p = NULL, *pp=NULL;
+    uint8_t     status = 0;
+    uint16_t    opcode = 0;
+    HC_BT_HDR   *p_buf = NULL;
+    uint8_t     is_proceeding = FALSE;
+    int         i = 0;
+    uint8_t     iIndexRx = 0;
+    patch_info* prtk_patch_file_info = NULL;
+    uint32_t    host_baudrate = 0;
+
+#if (USE_CONTROLLER_BDADDR == TRUE)
+    const uint8_t null_bdaddr[BD_ADDR_LEN] = {0,0,0,0,0,0};
+#endif
+
+    if(p_mem != NULL)
+    {
+        p_evt_buf = (HC_BT_HDR *) p_mem;
+        status = *((uint8_t *)(p_evt_buf + 1) + HCI_EVT_CMD_CMPL_STATUS_OFFSET);
+        p = (uint8_t *)(p_evt_buf + 1) + HCI_EVT_CMD_CMPL_OPCODE_OFFSET;
+        STREAM_TO_UINT16(opcode,p);
+    }
+
+    /* Ask a new buffer big enough to hold any HCI commands sent in here */
+    /*a cut fc6d status==1*/
+    if (((status == 0) ||(opcode == HCI_VSC_READ_ROM_VERSION)) && bt_vendor_cbacks)
+        p_buf = (HC_BT_HDR *)bt_vendor_cbacks->alloc(BT_HC_HDR_SIZE + HCI_CMD_MAX_LEN);
+
+    if (p_buf != NULL)
+    {
+        p_buf->event = MSG_STACK_TO_HC_HCI_CMD;
+        p_buf->offset = 0;
+        p_buf->len = 0;
+        p_buf->layer_specific = 0;
+
+        ALOGI("hw_cfg_cb.state = %i", hw_cfg_cb.state);
+        switch (hw_cfg_cb.state)
+        {
+            case HW_CFG_H5_INIT:
+            {
+                p = (uint8_t *)(p_buf + 1);
+                UINT16_TO_STREAM(p, HCI_READ_LMP_VERSION);
+                *p++ = 0;
+                p_buf->len = HCI_CMD_PREAMBLE_SIZE;
+
+                hw_cfg_cb.state = HW_CFG_READ_LOCAL_VER;
+                is_proceeding = bt_vendor_cbacks->xmit_cb(HCI_READ_LMP_VERSION, p_buf, hw_config_cback);
+                break;
+            }
+            case HW_CFG_READ_LOCAL_VER:
+            {
+                if (status == 0)
+                {
+                    p = ((uint8_t *)(p_evt_buf + 1) + HCI_EVT_CMD_CMPL_OP1001_HCI_VERSION_OFFSET);
+                    STREAM_TO_UINT16(hw_cfg_cb.hci_version, p);
+                    p = ((uint8_t *)(p_evt_buf + 1) + HCI_EVT_CMD_CMPL_OP1001_HCI_REVISION_OFFSET);
+                    STREAM_TO_UINT16(hw_cfg_cb.hci_revision, p);
+                    p = (uint8_t *)(p_evt_buf + 1) + HCI_EVT_CMD_CMPL_OP1001_LMP_SUBVERSION_OFFSET;
+                    STREAM_TO_UINT16(hw_cfg_cb.lmp_subversion, p);
+                    ALOGI("lmp_subversion = 0x%x hw_cfg_cb.hci_version = 0x%x hw_cfg_cb.hci_revision = 0x%x", hw_cfg_cb.lmp_subversion, hw_cfg_cb.hci_version, hw_cfg_cb.hci_revision);
+                    if(hw_cfg_cb.lmp_subversion == LMPSUBVERSION_8723a)
+                    {
+                        hw_cfg_cb.state = HW_CFG_START;
+                        goto CFG_START;
+                    }
+                    else
+                    {
+                        hw_cfg_cb.state = HW_CFG_READ_ECO_VER;
+                        p = (uint8_t *) (p_buf + 1);
+                        UINT16_TO_STREAM(p, HCI_VSC_READ_ROM_VERSION);
+                        *p++ = 0;
+                        p_buf->len = HCI_CMD_PREAMBLE_SIZE;
+                        is_proceeding = bt_vendor_cbacks->xmit_cb(HCI_VSC_READ_ROM_VERSION, p_buf, hw_config_cback);
+                    }
+                }
+                break;
+            }
+            case HW_CFG_READ_ECO_VER:
+            {
+                if(status == 0)
+                {
+                    hw_cfg_cb.eversion = *((uint8_t *)(p_evt_buf + 1) + HCI_EVT_CMD_CMPL_OPFC6D_EVERSION_OFFSET);
+                    ALOGI("hw_config_cback chip_id of the IC:%d", hw_cfg_cb.eversion+1);
+                }
+                else if(1 == status)
+                {
+                    hw_cfg_cb.eversion = 0;
+                }
+                else
+                {
+                    is_proceeding = FALSE;
+                    break;
+                }
+
+                if(check_match_state(&hw_cfg_cb, 0) > 1)    // check if have multiple matched patch_entry by lmp_subversion,hci_version, hci_revision
+                {
+                    hw_cfg_cb.state = HW_CFG_READ_CHIP_TYPE;
+                     p = (uint8_t *) (p_buf + 1);
+                    UINT16_TO_STREAM(p, HCI_VSC_READ_CHIP_TYPE);
+                    *p++ = 5;
+                    UINT8_TO_STREAM(p, 0x00);
+                    UINT32_TO_STREAM(p, 0xB000A094);
+                    p_buf->len = HCI_CMD_PREAMBLE_SIZE + HCI_CMD_READ_CHIP_TYPE_SIZE;
+
+                    pp = (uint8_t *) (p_buf + 1);
+                    for (i = 0; i < p_buf->len; i++)
+                        ALOGI("get chip type command data[%d]= 0x%x", i, *(pp+i));
+
+                    is_proceeding = bt_vendor_cbacks->xmit_cb(HCI_VSC_READ_CHIP_TYPE, p_buf, hw_config_cback);
+                    break;
+                }
+                else
+                {
+                    hw_cfg_cb.state = HW_CFG_START;
+                    goto CFG_START;
+                }
+            }
+            case HW_CFG_READ_CHIP_TYPE:
+            {
+                ALOGI("READ_CHIP_TYPE status = %d", status);
+                ALOGI("READ_CHIP_TYPE length = %d", p_evt_buf->len);
+                p = (uint8_t *)(p_evt_buf + 1) ;
+                for (i = 0; i < p_evt_buf->len; i++)
+                    ALOGI("READ_CHIP_TYPE event data[%d]= 0x%x", i, *(p+i));
+                if(status == 0)
+                {
+                    hw_cfg_cb.chip_type = ((*((uint8_t *)(p_evt_buf + 1) + HCI_EVT_CMD_CMPL_OPFC61_CHIPTYPE_OFFSET))&0x0F);
+                    ALOGI("READ_CHIP_TYPE hw_cfg_cb.lmp_subversion = 0x%x", hw_cfg_cb.lmp_subversion);
+                    ALOGI("READ_CHIP_TYPE hw_cfg_cb.hci_version = 0x%x", hw_cfg_cb.hci_version);
+                    ALOGI("READ_CHIP_TYPE hw_cfg_cb.hci_revision = 0x%x", hw_cfg_cb.hci_revision);
+                    ALOGI("READ_CHIP_TYPE hw_cfg_cb.chip_type = 0x%x", hw_cfg_cb.chip_type);
+                }
+                else
+                {
+                    is_proceeding = FALSE;
+                    break;
+                }
+                if(check_match_state(&hw_cfg_cb, PATCH_OPTIONAL_MATCH_FLAG_CHIPTYPE) > 1)  // check if have multiple matched patch_entry by lmp_subversion,hci_version, hci_revision and chiptype
+                {
+                    ALOGE("check_match_state(lmp_subversion:0x%04x, hci_version:%d, hci_revision:%d chip_type:%d): Multi Matched Patch\n", hw_cfg_cb.lmp_subversion, hw_cfg_cb.hci_version, hw_cfg_cb.hci_revision, hw_cfg_cb.chip_type);
+                    is_proceeding = FALSE;
+                    break;
+                }
+                hw_cfg_cb.state = HW_CFG_START;
+            }
+CFG_START:
+            case HW_CFG_START:
+            {
+#ifdef BT_CHIP_PROBE_SIMULATION
+                {
+                    int ii;
+                    memcpy(&hw_cfg_test, &hw_cfg_cb, sizeof(hw_cfg_test));
+                    for(i=0;i<sizeof(bt_chip_chars)/sizeof(bt_chip_chars[0]);i++)
+                    {
+                        ALOGE("BT_CHIP_PROBE_SIMULATION loop:%d $$$ BEGIN $$$\n", i);
+                        hw_cfg_test.lmp_subversion = bt_chip_chars[i].lmp_subversion;
+                        hw_cfg_test.hci_version = bt_chip_chars[i].hci_version;
+                        hw_cfg_test.hci_revision = bt_chip_chars[i].hci_revision;
+                        hw_cfg_test.chip_type = CHIPTYPE_NONE;
+                        if(check_match_state(&hw_cfg_test, 0) > 1){
+                            ALOGE("check_match_state hw_cfg_test(lmp_subversion:0x%04x, hci_version:%d, hci_revision:%d chip_type:%d): Multi Matched Patch\n", hw_cfg_test.lmp_subversion, hw_cfg_test.hci_version, hw_cfg_test.hci_revision, hw_cfg_test.chip_type);
+                            if(bt_chip_chars[i].chip_type != CHIPTYPE_NONE){
+                                ALOGE("BT_CHIP_PROBE_SIMULATION loop:%d *** Include ChipType ***\n", i);
+                                hw_cfg_test.chip_type = bt_chip_chars[i].chip_type;
+                                if(check_match_state(&hw_cfg_test, PATCH_OPTIONAL_MATCH_FLAG_CHIPTYPE) > 1){
+                                    ALOGE("check_match_state hw_cfg_test(lmp_subversion:0x%04x, hci_version:%d, hci_revision:%d chip_type:%d): Multi Matched Patch\n", hw_cfg_test.lmp_subversion, hw_cfg_test.hci_version, hw_cfg_test.hci_revision, hw_cfg_test.chip_type);
+                                }else{
+                                    prtk_patch_file_info = get_patch_entry(&hw_cfg_test);
+                                }
+                            }
+                        }else{
+                            prtk_patch_file_info = get_patch_entry(&hw_cfg_test);
+                        }
+                        ALOGE("BT_CHIP_PROBE_SIMULATION loop:%d $$$ END $$$\n", i);
+                    }
+                }
+#endif
+                //get efuse config file and patch code file
+                prtk_patch_file_info = get_patch_entry(&hw_cfg_cb);
+
+
+                if((prtk_patch_file_info == NULL) || (prtk_patch_file_info->lmp_subversion == 0))
+                {
+                    ALOGE("get patch entry error");
+                    is_proceeding = FALSE;
+                    break;
+                }
+                hw_cfg_cb.max_patch_size = prtk_patch_file_info->max_patch_size;
+                hw_cfg_cb.config_len = rtk_get_bt_config(&hw_cfg_cb.config_buf, &hw_cfg_cb.baudrate, prtk_patch_file_info->config_name, prtk_patch_file_info->mac_offset);
+                if (hw_cfg_cb.config_len < 0)
+                {
+                    ALOGE("Get Config file fail, just use efuse settings");
+                    hw_cfg_cb.config_len = 0;
+                }
+                rtk_update_altsettings(prtk_patch_file_info, hw_cfg_cb.config_buf, &(hw_cfg_cb.config_len));
+
+                hw_cfg_cb.fw_len = rtk_get_bt_firmware(&hw_cfg_cb.fw_buf, prtk_patch_file_info->patch_name);
+                if (hw_cfg_cb.fw_len < 0)
+                {
+                    ALOGE("Get BT firmware fail");
+                    hw_cfg_cb.fw_len = 0;
+                }
+                else{
+                    hw_cfg_cb.project_id_mask = prtk_patch_file_info->project_id_mask;
+                    rtk_get_bt_final_patch(&hw_cfg_cb);
+                }
+                ALOGI("Check total_len(0x%08x) max_patch_size(0x%08x)", hw_cfg_cb.total_len, hw_cfg_cb.max_patch_size);
+                if (hw_cfg_cb.total_len > hw_cfg_cb.max_patch_size)
+                {
+                    ALOGE("total length of fw&config(0x%08x) larger than max_patch_size(0x%08x)", hw_cfg_cb.total_len, hw_cfg_cb.max_patch_size);
+                    is_proceeding = FALSE;
+                    break;
+                }
+
+                if ((hw_cfg_cb.total_len > 0) && hw_cfg_cb.dl_fw_flag)
+                {
+                    hw_cfg_cb.patch_frag_cnt = hw_cfg_cb.total_len / PATCH_DATA_FIELD_MAX_SIZE;
+                    hw_cfg_cb.patch_frag_tail = hw_cfg_cb.total_len % PATCH_DATA_FIELD_MAX_SIZE;
+                    if (hw_cfg_cb.patch_frag_tail)
+                        hw_cfg_cb.patch_frag_cnt += 1;
+                    else
+                        hw_cfg_cb.patch_frag_tail = PATCH_DATA_FIELD_MAX_SIZE;
+                    ALOGI("patch fragment count %d, tail len %d", hw_cfg_cb.patch_frag_cnt, hw_cfg_cb.patch_frag_tail);
+                }
+                else
+                {
+                    is_proceeding = FALSE;
+                    break;
+                }
+
+                if ((hw_cfg_cb.baudrate == 0) && ((hw_cfg_cb.hw_flow_cntrl & 0x80) == 0))
+                {
+                    ALOGI("no baudrate to set and no need to set hw flow control");
+                    goto DOWNLOAD_FW;
+                }
+
+                if ((hw_cfg_cb.baudrate == 0) && (hw_cfg_cb.hw_flow_cntrl & 0x80))
+                {
+                    ALOGI("no baudrate to set but set hw flow control is needed");
+                    goto SET_HW_FLCNTRL;
+                }
+            }
+            /* fall through intentionally */
+            case HW_CFG_SET_UART_BAUD_CONTROLLER:
+                ALOGI("bt vendor lib: set CONTROLLER UART baud 0x%x", hw_cfg_cb.baudrate);
+                hw_cfg_cb.state = HW_CFG_SET_UART_BAUD_HOST;
+                is_proceeding = hw_config_set_controller_baudrate(p_buf, hw_cfg_cb.baudrate);
+                break;
+
+            case HW_CFG_SET_UART_BAUD_HOST:
+                /* update baud rate of host's UART port */
+                rtk_speed_to_uart_speed(hw_cfg_cb.baudrate, &host_baudrate);
+                ALOGI("bt vendor lib: set HOST UART baud %i", host_baudrate);
+                userial_vendor_set_baud(line_speed_to_userial_baud(host_baudrate));
+
+                if((hw_cfg_cb.hw_flow_cntrl & 0x80) == 0)
+                    goto DOWNLOAD_FW;
+
+SET_HW_FLCNTRL:
+            case HW_CFG_SET_UART_HW_FLOW_CONTROL:
+                ALOGI("Change HW flowcontrol setting");
+                if(hw_cfg_cb.hw_flow_cntrl & 0x01)
+                {
+                    userial_vendor_set_hw_fctrl(1);
+                }
+                else
+                {
+                    userial_vendor_set_hw_fctrl(0);
+                }
+                ms_delay(100);
+                hw_cfg_cb.state = HW_CFG_DL_FW_PATCH;
+
+DOWNLOAD_FW:
+            case HW_CFG_DL_FW_PATCH:
+                ALOGI("bt vendor lib: HW_CFG_DL_FW_PATCH status:%i, opcode:0x%x", status, opcode);
+
+                //recv command complete event for patch code download command
+                if(opcode == HCI_VSC_DOWNLOAD_FW_PATCH)
+                {
+                    iIndexRx = *((uint8_t *)(p_evt_buf + 1) + HCI_EVT_CMD_CMPL_STATUS_OFFSET + 1);
+                    ALOGI("bt vendor lib: HW_CFG_DL_FW_PATCH status:%i, iIndexRx:%i", status, iIndexRx);
+                    hw_cfg_cb.patch_frag_idx++;
+
+                    if(iIndexRx&0x80)
+                    {
+                        ALOGI("vendor lib fwcfg completed");
+                        free(hw_cfg_cb.total_buf);
+                        hw_cfg_cb.total_len = 0;
+
+                        bt_vendor_cbacks->dealloc(p_buf);
+                        bt_vendor_cbacks->fwcfg_cb(BT_VND_OP_RESULT_SUCCESS);
+
+                        hw_cfg_cb.state = 0;
+                        is_proceeding = TRUE;
+                        break;
+                    }
+                }
+
+                if (hw_cfg_cb.patch_frag_idx < hw_cfg_cb.patch_frag_cnt)
+                {
+                    if (hw_cfg_cb.patch_frag_idx == hw_cfg_cb.patch_frag_cnt - 1)
+                    {
+                        ALOGI("HW_CFG_DL_FW_PATCH: send last fw fragment");
+                        hw_cfg_cb.patch_frag_idx |= 0x80;
+                        hw_cfg_cb.patch_frag_len = hw_cfg_cb.patch_frag_tail;
+                    }
+                    else
+                    {
+                        hw_cfg_cb.patch_frag_idx &= 0x7F;
+                        hw_cfg_cb.patch_frag_len = PATCH_DATA_FIELD_MAX_SIZE;
+                    }
+                }
+
+                is_proceeding = hci_download_patch_h4(p_buf, hw_cfg_cb.patch_frag_idx,
+                                    hw_cfg_cb.total_buf+(hw_cfg_cb.patch_frag_idx&0x7F)*PATCH_DATA_FIELD_MAX_SIZE,
+                                    hw_cfg_cb.patch_frag_len);
+                break;
+
+            default:
+                break;
+        } // switch(hw_cfg_cb.state)
+    } // if (p_buf != NULL)
+
+    /* Free the RX event buffer */
+    if ((bt_vendor_cbacks) && (p_evt_buf != NULL))
+        bt_vendor_cbacks->dealloc(p_evt_buf);
+
+    if (is_proceeding == FALSE)
+    {
+        ALOGE("vendor lib fwcfg aborted!!!");
+        if (bt_vendor_cbacks)
+        {
+            if (p_buf != NULL)
+                bt_vendor_cbacks->dealloc(p_buf);
+
+            bt_vendor_cbacks->fwcfg_cb(BT_VND_OP_RESULT_FAIL);
+        }
+
+        if(hw_cfg_cb.config_len)
+        {
+            free(hw_cfg_cb.config_buf);
+            hw_cfg_cb.config_len = 0;
+        }
+
+        if(hw_cfg_cb.fw_len)
+        {
+            free(hw_cfg_cb.fw_buf);
+            hw_cfg_cb.fw_len= 0;
+        }
+
+        if(hw_cfg_cb.total_len)
+        {
+            free(hw_cfg_cb.total_buf);
+            hw_cfg_cb.total_len = 0;
+        }
+        hw_cfg_cb.state = 0;
+    }
+}
+
+/******************************************************************************
+**   LPM Static Functions
+******************************************************************************/
+
+/*******************************************************************************
+**
+** Function         hw_lpm_ctrl_cback
+**
+** Description      Callback function for lpm enable/disable rquest
+**
+** Returns          None
+**
+*******************************************************************************/
+void hw_lpm_ctrl_cback(void *p_mem)
+{
+    HC_BT_HDR *p_evt_buf = (HC_BT_HDR *) p_mem;
+    bt_vendor_op_result_t status = BT_VND_OP_RESULT_FAIL;
+
+    if (*((uint8_t *)(p_evt_buf + 1) + HCI_EVT_CMD_CMPL_STATUS_OFFSET) == 0)
+    {
+        status = BT_VND_OP_RESULT_SUCCESS;
+    }
+
+    if (bt_vendor_cbacks)
+    {
+        bt_vendor_cbacks->lpm_cb(status);
+        bt_vendor_cbacks->dealloc(p_evt_buf);
+    }
+}
+
+
+/*****************************************************************************
+**   Hardware Configuration Interface Functions
+*****************************************************************************/
+
+
+/*******************************************************************************
+**
+** Function        hw_config_start
+**
+** Description     Kick off controller initialization process
+**
+** Returns         None
+**
+*******************************************************************************/
+void hw_config_start(void)
+{
+    memset(&hw_cfg_cb, 0, sizeof(bt_hw_cfg_cb_t));
+    hw_cfg_cb.dl_fw_flag = 1;
+    hw_cfg_cb.chip_type = CHIPTYPE_NONE;
+    ALOGI("\nRealtek libbt-vendor_uart Version %s \n",RTK_VERSION);
+    HC_BT_HDR  *p_buf = NULL;
+    uint8_t     *p;
+
+    ALOGI("hw_config_start\n");
+    /* Start from sending H5 INIT */
+    if (bt_vendor_cbacks)
+    {
+        /* Must allocate command buffer via HC's alloc API */
+        p_buf = (HC_BT_HDR *) bt_vendor_cbacks->alloc(BT_HC_HDR_SIZE + \
+                                                       HCI_CMD_PREAMBLE_SIZE);
+        if(p_buf)
+        {
+            p_buf->event = MSG_STACK_TO_HC_HCI_CMD;
+            p_buf->offset = 0;
+            p_buf->layer_specific = 0;
+            p_buf->len = HCI_CMD_PREAMBLE_SIZE;
+
+            p = (uint8_t *) (p_buf + 1);
+            UINT16_TO_STREAM(p, HCI_VSC_H5_INIT);
+            *p = 0; /* parameter length */
+        }
+            hw_cfg_cb.state = HW_CFG_H5_INIT;
+
+        bt_vendor_cbacks->xmit_cb(HCI_VSC_H5_INIT, p_buf, hw_config_cback);
+    }
+}
+
+#if (HW_END_WITH_HCI_RESET == TRUE)
+/******************************************************************************
+*
+**
+** Function         hw_epilog_cback
+**
+** Description      Callback function for Command Complete Events from HCI
+**                  commands sent in epilog process.
+**
+** Returns          None
+**
+*******************************************************************************/
+void hw_epilog_cback(void *p_mem)
+{
+    HC_BT_HDR   *p_evt_buf = (HC_BT_HDR *) p_mem;
+    uint8_t     *p, status;
+    uint16_t    opcode;
+
+    status = *((uint8_t *)(p_evt_buf + 1) + HCI_EVT_CMD_CMPL_STATUS_OFFSET);
+    p = (uint8_t *)(p_evt_buf + 1) + HCI_EVT_CMD_CMPL_OPCODE_OFFSET;
+    STREAM_TO_UINT16(opcode,p);
+
+    BTHWDBG("%s Opcode:0x%04X Status: %d", __FUNCTION__, opcode, status);
+
+    if (bt_vendor_cbacks)
+    {
+        /* Must free the RX event buffer */
+        bt_vendor_cbacks->dealloc(p_evt_buf);
+
+        /* Once epilog process is done, must call epilog_cb callback
+           to notify caller */
+        bt_vendor_cbacks->epilog_cb(BT_VND_OP_RESULT_SUCCESS);
+    }
+}
+
+/******************************************************************************
+*
+**
+** Function         hw_epilog_process
+**
+** Description      Sample implementation of epilog process
+**
+** Returns          None
+**
+*******************************************************************************/
+void hw_epilog_process(void)
+{
+    HC_BT_HDR  *p_buf = NULL;
+    uint8_t     *p;
+
+    BTHWDBG("hw_epilog_process");
+
+    /* Sending a HCI_RESET */
+    if (bt_vendor_cbacks)
+    {
+        /* Must allocate command buffer via HC's alloc API */
+        p_buf = (HC_BT_HDR *) bt_vendor_cbacks->alloc(BT_HC_HDR_SIZE + \
+                                                       HCI_CMD_PREAMBLE_SIZE);
+    }
+
+    if (p_buf)
+    {
+        p_buf->event = MSG_STACK_TO_HC_HCI_CMD;
+        p_buf->offset = 0;
+        p_buf->layer_specific = 0;
+        p_buf->len = HCI_CMD_PREAMBLE_SIZE;
+
+        p = (uint8_t *) (p_buf + 1);
+        UINT16_TO_STREAM(p, HCI_RESET);
+        *p = 0; /* parameter length */
+
+        /* Send command via HC's xmit_cb API */
+        bt_vendor_cbacks->xmit_cb(HCI_RESET, p_buf, hw_epilog_cback);
+    }
+    else
+    {
+        if (bt_vendor_cbacks)
+        {
+            ALOGE("vendor lib epilog process aborted [no buffer]");
+            bt_vendor_cbacks->epilog_cb(BT_VND_OP_RESULT_FAIL);
+        }
+    }
+}
+#endif // (HW_END_WITH_HCI_RESET == TRUE)
diff --git a/rtkbt/code/libbt-vendor/uart/src/upio.c b/rtkbt/code/libbt-vendor/uart/src/upio.c
new file mode 100755
index 0000000..b7a54a9
--- /dev/null
+++ b/rtkbt/code/libbt-vendor/uart/src/upio.c
@@ -0,0 +1,532 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Realtek Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  Filename:      upio.c
+ *
+ *  Description:   Contains I/O functions, like
+ *                      rfkill control
+ *                      BT_WAKE/HOST_WAKE control
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_upio"
+
+#include <utils/Log.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <cutils/properties.h>
+#include "bt_vendor_rtk.h"
+#include "upio.h"
+#include "userial_vendor.h"
+
+/******************************************************************************
+**  Constants & Macros
+******************************************************************************/
+
+#ifndef UPIO_DBG
+#define UPIO_DBG FALSE
+#endif
+
+#if (UPIO_DBG == TRUE)
+#define UPIODBG(param, ...) {ALOGD(param, ## __VA_ARGS__);}
+#else
+#define UPIODBG(param, ...) {}
+#endif
+
+/******************************************************************************
+**  Local type definitions
+******************************************************************************/
+
+#if (BT_WAKE_VIA_PROC == TRUE)
+
+/* proc fs node for enable/disable lpm mode */
+#ifndef VENDOR_LPM_PROC_NODE
+#define VENDOR_LPM_PROC_NODE "/proc/bluetooth/sleep/lpm"
+#endif
+
+/* proc fs node for notifying write request */
+#ifndef VENDOR_BTWRITE_PROC_NODE
+#define VENDOR_BTWRITE_PROC_NODE "/proc/bluetooth/sleep/btwrite"
+#endif
+
+/*
+ * Maximum btwrite assertion holding time without consecutive btwrite kicking.
+ * This value is correlative(shorter) to the in-activity timeout period set in
+ * the bluesleep LPM code. The current value used in bluesleep is 10sec.
+ */
+#ifndef PROC_BTWRITE_TIMER_TIMEOUT_MS
+#define PROC_BTWRITE_TIMER_TIMEOUT_MS   8000
+#endif
+
+/* lpm proc control block */
+typedef struct
+{
+    uint8_t btwrite_active;
+    uint8_t timer_created;
+    timer_t timer_id;
+    uint32_t timeout_ms;
+} vnd_lpm_proc_cb_t;
+
+static vnd_lpm_proc_cb_t lpm_proc_cb;
+#endif
+
+/******************************************************************************
+**  Static variables
+******************************************************************************/
+
+static uint8_t upio_state[UPIO_MAX_COUNT];
+static int rfkill_id = -1;
+static int bt_emul_enable = 0;
+static char *rfkill_state_path = NULL;
+
+/******************************************************************************
+**  Static functions
+******************************************************************************/
+
+/* for friendly debugging outpout string */
+static char *lpm_mode[] = {
+    "UNKNOWN",
+    "disabled",
+    "enabled"
+};
+
+static char *lpm_state[] = {
+    "UNKNOWN",
+    "de-asserted",
+    "asserted"
+};
+
+/*****************************************************************************
+**   Bluetooth On/Off Static Functions
+*****************************************************************************/
+static int is_emulator_context(void)
+{
+    char value[PROPERTY_VALUE_MAX];
+
+    property_get("ro.kernel.qemu", value, "0");
+    UPIODBG("is_emulator_context : %s", value);
+    if (strcmp(value, "1") == 0) {
+        return 1;
+    }
+    return 0;
+}
+
+static int is_rfkill_disabled(void)
+{
+    char value[PROPERTY_VALUE_MAX];
+
+    property_get("ro.rfkilldisabled", value, "0");
+    UPIODBG("is_rfkill_disabled ? [%s]", value);
+
+    if (strcmp(value, "1") == 0) {
+        return UPIO_BT_POWER_ON;
+    }
+
+    return UPIO_BT_POWER_OFF;
+}
+
+static int init_rfkill()
+{
+    char path[64];
+    char buf[16];
+    int fd, sz, id;
+
+    if (is_rfkill_disabled())
+        return -1;
+
+    for (id = 0; ; id++)
+    {
+        snprintf(path, sizeof(path), "/sys/class/rfkill/rfkill%d/type", id);
+        fd = open(path, O_RDONLY);
+        if (fd < 0)
+        {
+            ALOGE("init_rfkill : open(%s) failed: %s (%d)\n", \
+                 path, strerror(errno), errno);
+            return -1;
+        }
+
+        sz = read(fd, &buf, sizeof(buf));
+        close(fd);
+
+        if (sz >= 9 && memcmp(buf, "bluetooth", 9) == 0)
+        {
+            rfkill_id = id;
+
+            break;
+        }
+    }
+	
+    asprintf(&rfkill_state_path, "/sys/class/rfkill/rfkill%d/state", rfkill_id);
+    return 0;
+}
+
+int bt_wake_up_host_mode_set(uint8_t mode)
+{
+    char path[64];
+    char buffer = '0';
+    int sz;
+    int fd = -1;
+    int ret = -1;
+    ALOGE("bt_wake_up_host_mode_set");
+
+    snprintf(path, sizeof(path), "/proc/bluetooth/sleep/lpm");
+    ALOGE("bt_wake_up_host_mode_set path:%s", path);
+
+    fd = open(path, O_WRONLY);
+    if (fd < 0)
+    {
+        ALOGE("bt_wake_up_host_mode_set fd:%d = open(path, O_RDWR): open(%s) failed: %s (%d)\n", \
+            fd, path, strerror(errno), errno);
+        return -1;
+    }
+
+    ALOGE("bt_wake_up_host_mode_set fd:%d = open(path, O_RDWR): open(%s) success\n", \
+           fd, path);
+
+    if(mode == 1)
+    {
+       buffer = '1';
+    } else {
+       buffer = '0';
+    }
+
+    ALOGE("bt_wake_up_host_mode_set buffer:%d", buffer);
+    sz = write(fd, &buffer, 1);
+
+    if (sz < 0) {
+        ALOGE("bt_wake_up_host_mode_set : write(%s) failed: %s (%d)",
+            rfkill_state_path, strerror(errno),errno);
+    }
+    else
+        ret = 0;
+
+    if (fd >= 0)
+        close(fd);
+
+    return ret;
+}
+
+/*****************************************************************************
+**   LPM Static Functions
+*****************************************************************************/
+
+#if (BT_WAKE_VIA_PROC == TRUE)
+/*******************************************************************************
+**
+** Function        proc_btwrite_timeout
+**
+** Description     Timeout thread of proc/.../btwrite assertion holding timer
+**
+** Returns         None
+**
+*******************************************************************************/
+static void proc_btwrite_timeout(union sigval arg)
+{
+    UPIODBG("..%s..", __FUNCTION__);
+    lpm_proc_cb.btwrite_active = FALSE;
+}
+#endif
+
+/*****************************************************************************
+**   UPIO Interface Functions
+*****************************************************************************/
+
+/*******************************************************************************
+**
+** Function        upio_init
+**
+** Description     Initialization
+**
+** Returns         None
+**
+*******************************************************************************/
+void upio_init(void)
+{
+    memset(upio_state, UPIO_UNKNOWN, UPIO_MAX_COUNT);
+#if (BT_WAKE_VIA_PROC == TRUE)
+    memset(&lpm_proc_cb, 0, sizeof(vnd_lpm_proc_cb_t));
+#endif
+}
+
+/*******************************************************************************
+**
+** Function        upio_cleanup
+**
+** Description     Clean up
+**
+** Returns         None
+**
+*******************************************************************************/
+void upio_cleanup(void)
+{
+#if (BT_WAKE_VIA_PROC == TRUE)
+    if (lpm_proc_cb.timer_created == TRUE)
+        timer_delete(lpm_proc_cb.timer_id);
+
+    lpm_proc_cb.timer_created = FALSE;
+#endif
+}
+
+/*******************************************************************************
+**
+** Function        upio_set_bluetooth_power
+**
+** Description     Interact with low layer driver to set Bluetooth power
+**                 on/off.
+**
+** Returns         0  : SUCCESS or Not-Applicable
+**                 <0 : ERROR
+**
+*******************************************************************************/
+int upio_set_bluetooth_power(int on)
+{
+    int sz;
+    int fd = -1;
+    int ret = -1;
+    char buffer = '0';
+
+    switch(on)
+    {
+        case UPIO_BT_POWER_OFF:
+            buffer = '0';
+            break;
+
+        case UPIO_BT_POWER_ON:
+            buffer = '1';
+            break;
+    }
+
+    if (is_emulator_context())
+    {
+        /* if new value is same as current, return -1 */
+        if (bt_emul_enable == on)
+            return ret;
+
+        UPIODBG("set_bluetooth_power [emul] %d", on);
+
+        bt_emul_enable = on;
+        return 0;
+    }
+
+    /* check if we have rfkill interface */
+    if (is_rfkill_disabled())
+        return 0;
+
+    if (rfkill_id == -1)
+    {
+        if (init_rfkill())
+            return ret;
+    }
+
+    fd = open(rfkill_state_path, O_WRONLY);
+
+    if (fd < 0)
+    {
+        ALOGE("set_bluetooth_power : open(%s) for write failed: %s (%d)",
+            rfkill_state_path, strerror(errno), errno);
+        return ret;
+    }
+
+    sz = write(fd, &buffer, 1);
+
+    if (sz < 0) {
+        ALOGE("set_bluetooth_power : write(%s) failed: %s (%d)",
+            rfkill_state_path, strerror(errno),errno);
+    }
+    else
+        ret = 0;
+
+    if (fd >= 0)
+        close(fd);
+
+    return ret;
+}
+
+
+/*******************************************************************************
+**
+** Function        upio_set
+**
+** Description     Set i/o based on polarity
+**
+** Returns         None
+**
+*******************************************************************************/
+void upio_set(uint8_t pio, uint8_t action, uint8_t polarity)
+{
+    int rc;
+#if (BT_WAKE_VIA_PROC == TRUE)
+    int fd = -1;
+    char buffer;
+#endif
+
+    switch (pio)
+    {
+        case UPIO_LPM_MODE:
+            if (upio_state[UPIO_LPM_MODE] == action)
+            {
+                UPIODBG("LPM is %s already", lpm_mode[action]);
+                return;
+            }
+
+            upio_state[UPIO_LPM_MODE] = action;
+
+#if (BT_WAKE_VIA_PROC == TRUE)
+            fd = open(VENDOR_LPM_PROC_NODE, O_WRONLY);
+
+            if (fd < 0)
+            {
+                ALOGE("upio_set : open(%s) for write failed: %s (%d)",
+                        VENDOR_LPM_PROC_NODE, strerror(errno), errno);
+                return;
+            }
+
+            if (action == UPIO_ASSERT)
+            {
+                buffer = '1';
+            }
+            else
+            {
+                buffer = '0';
+
+                // delete btwrite assertion holding timer
+                if (lpm_proc_cb.timer_created == TRUE)
+                {
+                    timer_delete(lpm_proc_cb.timer_id);
+                    lpm_proc_cb.timer_created = FALSE;
+                }
+            }
+
+            if (write(fd, &buffer, 1) < 0)
+            {
+                ALOGE("upio_set : write(%s) failed: %s (%d)",
+                        VENDOR_LPM_PROC_NODE, strerror(errno),errno);
+            }
+            else
+            {
+                if (action == UPIO_ASSERT)
+                {
+                    // create btwrite assertion holding timer
+                    if (lpm_proc_cb.timer_created == FALSE)
+                    {
+                        int status;
+                        struct sigevent se;
+
+                        se.sigev_notify = SIGEV_THREAD;
+                        se.sigev_value.sival_ptr = &lpm_proc_cb.timer_id;
+                        se.sigev_notify_function = proc_btwrite_timeout;
+                        se.sigev_notify_attributes = NULL;
+
+                        status = timer_create(CLOCK_MONOTONIC, &se,
+                                                &lpm_proc_cb.timer_id);
+
+                        if (status == 0)
+                            lpm_proc_cb.timer_created = TRUE;
+                    }
+                }
+            }
+
+            if (fd >= 0)
+                close(fd);
+#endif
+            break;
+
+        case UPIO_BT_WAKE:
+            if (upio_state[UPIO_BT_WAKE] == action)
+            {
+                UPIODBG("BT_WAKE is %s already", lpm_state[action]);
+
+#if (BT_WAKE_VIA_PROC == TRUE)
+                if (lpm_proc_cb.btwrite_active == TRUE)
+                    /*
+                     * The proc btwrite node could have not been updated for
+                     * certain time already due to heavy downstream path flow.
+                     * In this case, we want to explicity touch proc btwrite
+                     * node to keep the bt_wake assertion in the LPM kernel
+                     * driver. The current kernel bluesleep LPM code starts
+                     * a 10sec internal in-activity timeout timer before it
+                     * attempts to deassert BT_WAKE line.
+                     */
+#endif
+                return;
+            }
+
+            upio_state[UPIO_BT_WAKE] = action;
+
+#if (BT_WAKE_VIA_USERIAL_IOCTL == TRUE)
+
+            userial_vendor_ioctl( ( (action==UPIO_ASSERT) ? \
+                      USERIAL_OP_ASSERT_BT_WAKE : USERIAL_OP_DEASSERT_BT_WAKE),\
+                      NULL);
+
+#elif (BT_WAKE_VIA_PROC == TRUE)
+
+            /*
+             *  Kick proc btwrite node only at UPIO_ASSERT
+             */
+            if (action == UPIO_DEASSERT)
+                return;
+
+            fd = open(VENDOR_BTWRITE_PROC_NODE, O_WRONLY);
+
+            if (fd < 0)
+            {
+                ALOGE("upio_set : open(%s) for write failed: %s (%d)",
+                        VENDOR_BTWRITE_PROC_NODE, strerror(errno), errno);
+                return;
+            }
+
+            buffer = '1';
+
+            if (write(fd, &buffer, 1) < 0)
+            {
+                ALOGE("upio_set : write(%s) failed: %s (%d)",
+                        VENDOR_BTWRITE_PROC_NODE, strerror(errno),errno);
+            }
+            else
+            {
+                lpm_proc_cb.btwrite_active = TRUE;
+
+                if (lpm_proc_cb.timer_created == TRUE)
+                {
+                    struct itimerspec ts;
+
+                    ts.it_value.tv_sec = PROC_BTWRITE_TIMER_TIMEOUT_MS/1000;
+                    ts.it_value.tv_nsec = 1000*(PROC_BTWRITE_TIMER_TIMEOUT_MS%1000);
+                    ts.it_interval.tv_sec = 0;
+                    ts.it_interval.tv_nsec = 0;
+
+                    timer_settime(lpm_proc_cb.timer_id, 0, &ts, 0);
+                }
+            }
+
+            UPIODBG("proc btwrite assertion");
+
+            if (fd >= 0)
+                close(fd);
+#endif
+
+            break;
+
+        case UPIO_HOST_WAKE:
+            UPIODBG("upio_set: UPIO_HOST_WAKE");
+            break;
+    }
+}
diff --git a/rtkbt/code/libbt-vendor/uart/src/userial_vendor.c b/rtkbt/code/libbt-vendor/uart/src/userial_vendor.c
new file mode 100755
index 0000000..1cf0909
--- /dev/null
+++ b/rtkbt/code/libbt-vendor/uart/src/userial_vendor.c
@@ -0,0 +1,445 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Realtek Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  Filename:      userial_vendor.c
+ *
+ *  Description:   Contains vendor-specific userial functions
+ *
+ ******************************************************************************/
+#undef NDEBUG
+#define LOG_TAG "bt_userial_vendor"
+
+#include <utils/Log.h>
+#include <termios.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <stdio.h>
+#include "bt_vendor_rtk.h"
+#include "userial.h"
+#include "userial_vendor.h"
+
+/******************************************************************************
+**  Constants & Macros
+******************************************************************************/
+
+#ifndef VNDUSERIAL_DBG
+#define VNDUSERIAL_DBG TRUE
+#endif
+
+#if (VNDUSERIAL_DBG == TRUE)
+#define VNDUSERIALDBG(param, ...) {ALOGD(param, ## __VA_ARGS__);}
+#else
+#define VNDUSERIALDBG(param, ...) {}
+#endif
+
+#define VND_PORT_NAME_MAXLEN    256
+
+#ifndef BT_CHIP_HW_FLOW_CTRL_ON
+#define BT_CHIP_HW_FLOW_CTRL_ON TRUE
+#endif
+
+
+
+/******************************************************************************
+**  Local type definitions
+******************************************************************************/
+
+/* vendor serial control block */
+typedef struct
+{
+    int fd;                     /* fd to Bluetooth device */
+    struct termios termios;     /* serial terminal of BT port */
+    char port_name[VND_PORT_NAME_MAXLEN];
+} vnd_userial_cb_t;
+
+/******************************************************************************
+**  Static variables
+******************************************************************************/
+
+static vnd_userial_cb_t vnd_userial;
+
+/*****************************************************************************
+**   Helper Functions
+*****************************************************************************/
+
+/*******************************************************************************
+**
+** Function        userial_to_tcio_baud
+**
+** Description     helper function converts USERIAL baud rates into TCIO
+**                  conforming baud rates
+**
+** Returns         TRUE/FALSE
+**
+*******************************************************************************/
+uint8_t userial_to_tcio_baud(uint8_t cfg_baud, uint32_t *baud)
+{
+    if (cfg_baud == USERIAL_BAUD_115200)
+        *baud = B115200;
+    else if (cfg_baud == USERIAL_BAUD_4M)
+        *baud = B4000000;
+    else if (cfg_baud == USERIAL_BAUD_3M)
+        *baud = B3000000;
+    else if (cfg_baud == USERIAL_BAUD_2M)
+        *baud = B2000000;
+    else if (cfg_baud == USERIAL_BAUD_1M)
+        *baud = B1000000;
+    else if (cfg_baud == USERIAL_BAUD_1_5M)
+        *baud = B1500000;
+    else if (cfg_baud == USERIAL_BAUD_921600)
+        *baud = B921600;
+    else if (cfg_baud == USERIAL_BAUD_460800)
+        *baud = B460800;
+    else if (cfg_baud == USERIAL_BAUD_230400)
+        *baud = B230400;
+    else if (cfg_baud == USERIAL_BAUD_57600)
+        *baud = B57600;
+    else if (cfg_baud == USERIAL_BAUD_19200)
+        *baud = B19200;
+    else if (cfg_baud == USERIAL_BAUD_9600)
+        *baud = B9600;
+    else if (cfg_baud == USERIAL_BAUD_1200)
+        *baud = B1200;
+    else if (cfg_baud == USERIAL_BAUD_600)
+        *baud = B600;
+    else
+    {
+        ALOGE( "userial vendor open: unsupported baud idx %i", cfg_baud);
+        *baud = B115200;
+        return FALSE;
+    }
+
+    return TRUE;
+}
+
+#if (BT_WAKE_VIA_USERIAL_IOCTL==TRUE)
+/*******************************************************************************
+**
+** Function        userial_ioctl_init_bt_wake
+**
+** Description     helper function to set the open state of the bt_wake if ioctl
+**                  is used. it should not hurt in the rfkill case but it might
+**                  be better to compile it out.
+**
+** Returns         none
+**
+*******************************************************************************/
+void userial_ioctl_init_bt_wake(int fd)
+{
+    uint32_t bt_wake_state;
+
+    /* assert BT_WAKE through ioctl */
+    ioctl(fd, USERIAL_IOCTL_BT_WAKE_ASSERT, NULL);
+    ioctl(fd, USERIAL_IOCTL_BT_WAKE_GET_ST, &bt_wake_state);
+    VNDUSERIALDBG("userial_ioctl_init_bt_wake read back BT_WAKE state=%i", \
+               bt_wake_state);
+}
+#endif // (BT_WAKE_VIA_USERIAL_IOCTL==TRUE)
+
+
+/*****************************************************************************
+**   Userial Vendor API Functions
+*****************************************************************************/
+
+/*******************************************************************************
+**
+** Function        userial_vendor_init
+**
+** Description     Initialize userial vendor-specific control block
+**
+** Returns         None
+**
+*******************************************************************************/
+void userial_vendor_init(char *bt_device_node)
+{
+    vnd_userial.fd = -1;
+    snprintf(vnd_userial.port_name, VND_PORT_NAME_MAXLEN, "%s", \
+            bt_device_node);
+}
+
+
+/*******************************************************************************
+**
+** Function        userial_vendor_open
+**
+** Description     Open the serial port with the given configuration
+**
+** Returns         device fd
+**
+*******************************************************************************/
+int userial_vendor_open(tUSERIAL_CFG *p_cfg)
+{
+    uint32_t baud;
+    uint8_t data_bits;
+    uint16_t parity;
+    uint8_t stop_bits;
+
+    vnd_userial.fd = -1;
+
+    if (!userial_to_tcio_baud(p_cfg->baud, &baud))
+    {
+        return -1;
+    }
+
+    if(p_cfg->fmt & USERIAL_DATABITS_8)
+        data_bits = CS8;
+    else if(p_cfg->fmt & USERIAL_DATABITS_7)
+        data_bits = CS7;
+    else if(p_cfg->fmt & USERIAL_DATABITS_6)
+        data_bits = CS6;
+    else if(p_cfg->fmt & USERIAL_DATABITS_5)
+        data_bits = CS5;
+    else
+    {
+        ALOGE("userial vendor open: unsupported data bits");
+        return -1;
+    }
+
+    if(p_cfg->fmt & USERIAL_PARITY_NONE)
+        parity = 0;
+    else if(p_cfg->fmt & USERIAL_PARITY_EVEN)
+        parity = PARENB;
+    else if(p_cfg->fmt & USERIAL_PARITY_ODD)
+        parity = (PARENB | PARODD);
+    else
+    {
+        ALOGE("userial vendor open: unsupported parity bit mode");
+        return -1;
+    }
+
+    if(p_cfg->fmt & USERIAL_STOPBITS_1)
+        stop_bits = 0;
+    else if(p_cfg->fmt & USERIAL_STOPBITS_2)
+        stop_bits = CSTOPB;
+    else
+    {
+        ALOGE("userial vendor open: unsupported stop bits");
+        return -1;
+    }
+
+    ALOGI("userial vendor open: opening %s", vnd_userial.port_name);
+
+    if ((vnd_userial.fd = open(vnd_userial.port_name, O_RDWR)) == -1)
+    {
+        ALOGE("userial vendor open: unable to open %s", vnd_userial.port_name);
+        return -1;
+    }
+
+    tcflush(vnd_userial.fd, TCIOFLUSH);
+
+    tcgetattr(vnd_userial.fd, &vnd_userial.termios);
+    cfmakeraw(&vnd_userial.termios);
+
+    if(p_cfg->hw_fctrl == USERIAL_HW_FLOW_CTRL_ON)
+    {
+        ALOGI("userial vendor open: with HW flowctrl ON");
+        vnd_userial.termios.c_cflag |= (CRTSCTS | stop_bits| parity);
+    }
+    else
+    {
+        ALOGI("userial vendor open: with HW flowctrl OFF");
+        vnd_userial.termios.c_cflag &= ~CRTSCTS;
+        vnd_userial.termios.c_cflag |= (stop_bits| parity);
+
+    }
+
+    tcsetattr(vnd_userial.fd, TCSANOW, &vnd_userial.termios);
+    tcflush(vnd_userial.fd, TCIOFLUSH);
+
+    tcsetattr(vnd_userial.fd, TCSANOW, &vnd_userial.termios);
+    tcflush(vnd_userial.fd, TCIOFLUSH);
+    tcflush(vnd_userial.fd, TCIOFLUSH);
+
+    /* set input/output baudrate */
+    cfsetospeed(&vnd_userial.termios, baud);
+    cfsetispeed(&vnd_userial.termios, baud);
+    tcsetattr(vnd_userial.fd, TCSANOW, &vnd_userial.termios);
+
+
+#if (BT_WAKE_VIA_USERIAL_IOCTL==TRUE)
+    userial_ioctl_init_bt_wake(vnd_userial.fd);
+#endif
+
+    ALOGI("device fd = %d open", vnd_userial.fd);
+
+    return vnd_userial.fd;
+}
+
+/*******************************************************************************
+**
+** Function        userial_vendor_close
+**
+** Description     Conduct vendor-specific close work
+**
+** Returns         None
+**
+*******************************************************************************/
+void userial_vendor_close(void)
+{
+    int result;
+
+    if (vnd_userial.fd == -1)
+        return;
+
+#if (BT_WAKE_VIA_USERIAL_IOCTL==TRUE)
+    /* de-assert bt_wake BEFORE closing port */
+    ioctl(vnd_userial.fd, USERIAL_IOCTL_BT_WAKE_DEASSERT, NULL);
+#endif
+
+    ALOGI("device fd = %d close", vnd_userial.fd);
+
+    if ((result = close(vnd_userial.fd)) < 0)
+        ALOGE( "close(fd:%d) FAILED result:%d", vnd_userial.fd, result);
+
+    vnd_userial.fd = -1;
+}
+
+/*******************************************************************************
+**
+** Function        userial_vendor_set_baud
+**
+** Description     Set new baud rate
+**
+** Returns         None
+**
+*******************************************************************************/
+void userial_vendor_set_baud(uint8_t userial_baud)
+{
+    uint32_t tcio_baud;
+    ALOGI("userial_vendor_set_baud++");
+    userial_to_tcio_baud(userial_baud, &tcio_baud);
+
+    if(cfsetospeed(&vnd_userial.termios, tcio_baud)<0)
+        ALOGE("cfsetospeed fail");
+
+    if(cfsetispeed(&vnd_userial.termios, tcio_baud)<0)
+        ALOGE("cfsetispeed fail");
+
+    if(tcsetattr(vnd_userial.fd, TCSANOW, &vnd_userial.termios)<0)
+        ALOGE("tcsetattr fail ");
+
+    tcflush(vnd_userial.fd, TCIOFLUSH);
+
+    ALOGI("userial_vendor_set_baud--");
+}
+
+/*******************************************************************************
+**
+** Function        userial_vendor_ioctl
+**
+** Description     ioctl inteface
+**
+** Returns         None
+**
+*******************************************************************************/
+void userial_vendor_ioctl(userial_vendor_ioctl_op_t op, void *p_data)
+{
+    switch(op)
+    {
+#if (BT_WAKE_VIA_USERIAL_IOCTL==TRUE)
+        case USERIAL_OP_ASSERT_BT_WAKE:
+            VNDUSERIALDBG("## userial_vendor_ioctl: Asserting BT_Wake ##");
+            ioctl(vnd_userial.fd, USERIAL_IOCTL_BT_WAKE_ASSERT, NULL);
+            break;
+
+        case USERIAL_OP_DEASSERT_BT_WAKE:
+            VNDUSERIALDBG("## userial_vendor_ioctl: De-asserting BT_Wake ##");
+            ioctl(vnd_userial.fd, USERIAL_IOCTL_BT_WAKE_DEASSERT, NULL);
+            break;
+
+        case USERIAL_OP_GET_BT_WAKE_STATE:
+            ioctl(vnd_userial.fd, USERIAL_IOCTL_BT_WAKE_GET_ST, p_data);
+            break;
+#endif  //  (BT_WAKE_VIA_USERIAL_IOCTL==TRUE)
+
+        default:
+            break;
+    }
+}
+
+/*******************************************************************************
+**
+** Function        userial_set_port
+**
+** Description     Configure UART port name
+**
+** Returns         0 : Success
+**                 Otherwise : Fail
+**
+*******************************************************************************/
+int userial_set_port(char *p_conf_name, char *p_conf_value, int param)
+{
+    strcpy(vnd_userial.port_name, p_conf_value);
+
+    return 0;
+}
+
+/*******************************************************************************
+**
+** Function        userial_vendor_set_hw_fctrl
+**
+** Description     Conduct vendor-specific close work
+**
+** Returns         None
+**
+*******************************************************************************/
+void userial_vendor_set_hw_fctrl(uint8_t hw_fctrl)
+{
+    struct termios termios_old;
+
+    if (vnd_userial.fd == -1)
+    {
+        ALOGE("vnd_userial.fd is -1");
+        return;
+    }
+
+    tcgetattr(vnd_userial.fd, &termios_old);
+    if(hw_fctrl)
+    {
+        ALOGI("Set HW FlowControl On");
+        if(termios_old.c_cflag & CRTSCTS)
+        {
+            ALOGI("userial_vendor_set_hw_fctrl already hw flowcontrol on");
+            return;
+        }
+        else
+        {
+            termios_old.c_cflag |= CRTSCTS;
+            tcsetattr(vnd_userial.fd, TCSANOW, &termios_old);
+            ALOGI("userial_vendor_set_hw_fctrl set hw flowcontrol on");
+        }
+    }
+    else
+    {
+        ALOGI("Set HW FlowControl Off");
+        if(termios_old.c_cflag & CRTSCTS)
+        {
+            termios_old.c_cflag &= ~CRTSCTS;
+            tcsetattr(vnd_userial.fd, TCSANOW, &termios_old);
+            return;
+        }
+        else
+        {
+            ALOGI("userial_vendor_set_hw_fctrl set hw flowcontrol off");
+            return;
+        }
+    }
+
+}
diff --git a/rtkbt/code/libbt-vendor/usb/Android.mk b/rtkbt/code/libbt-vendor/usb/Android.mk
new file mode 100755
index 0000000..19b306c
--- /dev/null
+++ b/rtkbt/code/libbt-vendor/usb/Android.mk
@@ -0,0 +1,21 @@
+LOCAL_PATH := $(call my-dir)
+
+include $(CLEAR_VARS)
+
+BDROID_DIR := $(LOCAL_PATH)/../../bt
+
+LOCAL_SRC_FILES := \
+        src/bt_vendor_rtk.c
+
+LOCAL_C_INCLUDES += \
+        $(LOCAL_PATH)/include \
+        $(BDROID_DIR)/hci/include
+
+LOCAL_SHARED_LIBRARIES := \
+        libcutils
+
+LOCAL_MODULE := libbt-vendor_usb
+LOCAL_MODULE_TAGS := optional
+LOCAL_MODULE_CLASS := SHARED_LIBRARIES
+
+include $(BUILD_SHARED_LIBRARY)
diff --git a/rtkbt/code/libbt-vendor/usb/include/bt_vendor_rtk.h b/rtkbt/code/libbt-vendor/usb/include/bt_vendor_rtk.h
new file mode 100755
index 0000000..bc1f4bd
--- /dev/null
+++ b/rtkbt/code/libbt-vendor/usb/include/bt_vendor_rtk.h
@@ -0,0 +1,64 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  Filename:      bt_vendor_rtk.h
+ *
+ *  Description:   A wrapper header file of bt_vendor_lib.h
+ *
+ *                 Contains definitions specific for interfacing with Broadcom
+ *                 Bluetooth chipsets
+ *
+ ******************************************************************************/
+
+#ifndef BT_VENDOR_RTK_H
+#define BT_VENDOR_RTK_H
+
+#include "bt_vendor_lib.h"
+#include "vnd_buildcfg.h"
+#include <string.h>
+
+/******************************************************************************
+**  Constants & Macros
+******************************************************************************/
+
+#ifndef FALSE
+#define FALSE  0
+#endif
+
+#ifndef TRUE
+#define TRUE   (!FALSE)
+#endif
+
+/* Device port name where Bluetooth controller attached */
+#ifndef BLUETOOTH_UART_DEVICE_PORT
+#define BLUETOOTH_UART_DEVICE_PORT      "/dev/ttyO1"    /* maguro */
+#endif
+
+/******************************************************************************
+**  Extern variables and functions
+******************************************************************************/
+void userial_vendor_init(char *bt_device_node);
+int userial_vendor_open(void);
+void userial_vendor_close(void);
+
+extern bt_vendor_callbacks_t *bt_vendor_cbacks;
+
+#endif /* BT_VENDOR_RTK_H */
+
diff --git a/rtkbt/code/libbt-vendor/usb/include/vnd_buildcfg.h b/rtkbt/code/libbt-vendor/usb/include/vnd_buildcfg.h
new file mode 100755
index 0000000..1bc413f
--- /dev/null
+++ b/rtkbt/code/libbt-vendor/usb/include/vnd_buildcfg.h
@@ -0,0 +1,6 @@
+#ifndef _VND_BUILDCFG_H
+#define _VND_BUILDCFG_H
+#define BLUETOOTH_UART_DEVICE_PORT   "/dev/rtk_btusb"
+#define BTVND_DBG   TRUE
+#define LPM_SLEEP_MODE   FALSE
+#endif
diff --git a/rtkbt/code/libbt-vendor/usb/src/bt_vendor_rtk.c b/rtkbt/code/libbt-vendor/usb/src/bt_vendor_rtk.c
new file mode 100755
index 0000000..a47231d
--- /dev/null
+++ b/rtkbt/code/libbt-vendor/usb/src/bt_vendor_rtk.c
@@ -0,0 +1,269 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2009-2012 Broadcom Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ *  Filename:      bt_vendor_rtk.c
+ *
+ *  Description:   Broadcom vendor specific library implementation
+ *
+ ******************************************************************************/
+
+#define LOG_TAG "bt_vendor"
+
+#include <fcntl.h>
+#include <errno.h>
+#include <utils/Log.h>
+#include "bt_vendor_rtk.h"
+
+#include <errno.h>
+#include <sys/ioctl.h>
+
+#ifndef BTVND_DBG
+#define BTVND_DBG FALSE
+#endif
+
+#if (BTVND_DBG == TRUE)
+#define BTVNDDBG(param, ...) {ALOGD(param, ## __VA_ARGS__);}
+#else
+#define BTVNDDBG(param, ...) {}
+#endif
+
+
+
+//Define ioctl cmd the same as HCIDEVUP in the kernel
+#define DOWN_FW_CFG  _IOW('H', 201, int)
+
+
+/******************************************************************************
+**  Local type definitions
+******************************************************************************/
+#define VND_PORT_NAME_MAXLEN    256
+/* vendor serial control block */
+typedef struct
+{
+    int fd;                     /* fd to Bluetooth device */
+    uint16_t dev_id;
+    char port_name[VND_PORT_NAME_MAXLEN];
+} vnd_userial_cb_t;
+
+/******************************************************************************
+**  Variables
+******************************************************************************/
+
+bt_vendor_callbacks_t *bt_vendor_cbacks = NULL;
+uint8_t vnd_local_bd_addr[6]={0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
+static vnd_userial_cb_t vnd_userial;
+
+/*****************************************************************************
+**
+**   BLUETOOTH VENDOR INTERFACE LIBRARY FUNCTIONS
+**
+*****************************************************************************/
+
+static int init(const bt_vendor_callbacks_t* p_cb, unsigned char *local_bdaddr,char *bt_device_node)
+{
+    ALOGI("init");
+
+    if (p_cb == NULL)
+    {
+        ALOGE("init failed with no user callbacks!");
+        return -1;
+    }
+
+    userial_vendor_init(bt_device_node);
+
+    /* store reference to user callbacks */
+    bt_vendor_cbacks = (bt_vendor_callbacks_t *) p_cb;
+
+    /* This is handed over from the stack */
+    memcpy(vnd_local_bd_addr, local_bdaddr, 6);
+
+    return 0;
+}
+
+
+
+/** Requested operations */
+static int op(bt_vendor_opcode_t opcode, void *param)
+{
+    int retval = 0;
+
+    //BTVNDDBG("op for %d", opcode);
+
+    switch(opcode)
+    {
+        case BT_VND_OP_POWER_CTRL:
+            {
+                return 0;
+            }
+            break;
+
+        case BT_VND_OP_FW_CFG:
+            {
+				ALOGE("Bt_vendor_rtk Op for BT_VND_OP_FW_CFG");
+				retval = ioctl(vnd_userial.fd, DOWN_FW_CFG, NULL);
+				if(retval>0){
+					ALOGE("Bt_vendor_rtk Download Fw Success");
+					bt_vendor_cbacks->fwcfg_cb(BT_VND_OP_RESULT_SUCCESS);
+				}else{
+					ALOGE("Bt_vendor_rtk Download Fw failed: %s(%d)", strerror(errno), errno);
+					bt_vendor_cbacks->fwcfg_cb(BT_VND_OP_RESULT_FAIL);
+				}
+            }
+			break;
+
+
+        case BT_VND_OP_SCO_CFG:
+            {
+                retval = -1;
+            }
+            break;
+
+        case BT_VND_OP_USERIAL_OPEN:
+            {
+                int (*fd_array)[] = (int (*)[]) param;
+                int fd, idx;
+                fd = userial_vendor_open();
+                if (fd != -1)
+                {
+                    for (idx=0; idx < CH_MAX; idx++)
+                        (*fd_array)[idx] = fd;
+
+                    retval = 1;
+                }
+                /* retval contains numbers of open fd of HCI channels */
+            }
+            break;
+
+        case BT_VND_OP_USERIAL_CLOSE:
+            {
+                userial_vendor_close();
+            }
+            break;
+
+        case BT_VND_OP_GET_LPM_IDLE_TIMEOUT:
+            {
+                uint32_t *timeout_ms = (uint32_t *) param;
+                *timeout_ms = 250;
+            }
+            break;
+
+        case BT_VND_OP_LPM_SET_MODE:
+            {
+        		if (bt_vendor_cbacks)
+        			bt_vendor_cbacks->lpm_cb(BT_VND_OP_RESULT_SUCCESS);
+            }
+            break;
+
+        case BT_VND_OP_LPM_WAKE_SET_STATE:
+            break;
+
+        case BT_VND_OP_EPILOG:
+            {
+
+					if (bt_vendor_cbacks)
+					{
+						bt_vendor_cbacks->epilog_cb(BT_VND_OP_RESULT_SUCCESS);
+					}
+            }
+            break;
+    }
+
+    return retval;
+}
+
+/*******************************************************************************
+**
+** Function        userial_vendor_init
+**
+** Description     Initialize userial vendor-specific control block
+**
+** Returns         None
+**
+*******************************************************************************/
+void userial_vendor_init(char *bt_device_node)
+{
+    vnd_userial.fd = -1;
+    vnd_userial.dev_id = 0;
+    snprintf(vnd_userial.port_name, VND_PORT_NAME_MAXLEN, "%s", \
+            bt_device_node);
+}
+
+/*******************************************************************************
+**
+** Function        userial_vendor_open
+**
+** Description     Open the serial port with the given configuration
+**
+** Returns         device fd
+**
+*******************************************************************************/
+int userial_vendor_open(void)
+{
+	ALOGI("userial vendor open: opening %s", vnd_userial.port_name);
+
+	if ((vnd_userial.fd = open(vnd_userial.port_name, O_RDWR)) == -1)
+	{
+	    ALOGE("userial vendor open: unable to open %s: %s", vnd_userial.port_name, strerror(errno));
+	    return -1;
+	}
+
+	ALOGI("device fd = %d open", vnd_userial.fd);
+
+	return vnd_userial.fd;
+}
+
+/*******************************************************************************
+**
+** Function        userial_vendor_close
+**
+** Description     Conduct vendor-specific close work
+**
+** Returns         None
+**
+*******************************************************************************/
+void userial_vendor_close(void)
+{
+    int result;
+
+    if (vnd_userial.fd == -1)
+        return;
+
+    ALOGI("device fd = %d close", vnd_userial.fd);
+
+    if ((result = close(vnd_userial.fd)) < 0)
+        ALOGE( "close(fd:%d) FAILED result:%d", vnd_userial.fd, result);
+
+    vnd_userial.fd = -1;
+}
+
+/** Closes the interface */
+static void cleanup( void )
+{
+    BTVNDDBG("cleanup");
+    bt_vendor_cbacks = NULL;
+}
+
+// Entry point of DLib
+const bt_vendor_interface_t BLUETOOTH_VENDOR_LIB_INTERFACE = {
+    sizeof(bt_vendor_interface_t),
+    init,
+    op,
+    cleanup
+};
diff --git a/rtkbt/rtkbt.mk b/rtkbt/rtkbt.mk
new file mode 100755
index 0000000..360b5c6
--- /dev/null
+++ b/rtkbt/rtkbt.mk
@@ -0,0 +1,66 @@
+# this file is auto generated. 
+# RELEASE_TIME: 20161215 17:51:29
+# RTKBT_API_VERSION=3.1.1.0
+
+#BOARD_HAVE_BLUETOOTH := true
+#BOARD_HAVE_BLUETOOTH_RTK := true
+#BOARD_HAVE_BLUETOOTH_RTK_COEX := true
+
+#BOARD_HAVE_BLUETOOTH_RTK_ADDON := bee1 rtkbtAutoPairService rtkbtAutoPairUIDemo 
+#BOARD_HAVE_BLUETOOTH_RTK_ADDON := bee1 rtkbtAutoPairService rtkbtAutoPairUIDemo vr_bee1_hidraw_daemon
+#BOARD_HAVE_BLUETOOTH_RTK_ADDON := bee2 rtkbtAutoPairService rtkbtAutoPairUIDemo 
+#BOARD_HAVE_BLUETOOTH_RTK_ADDON := bee2 rtkbtAutoPairService rtkbtAutoPairUIDemo vr_bee2_hidraw_daemon
+BOARD_HAVE_BLUETOOTH_RTK_ADDON := basic
+
+ifneq ($(BOARD_HAVE_BLUETOOTH_RTK_ADDON),)
+$(foreach item,$(BOARD_HAVE_BLUETOOTH_RTK_ADDON),$(call inherit-product,$(LOCAL_PATH)/addon/$(item)/addon.mk))
+endif
+
+PRODUCT_COPY_FILES += \
+	$(LOCAL_PATH)/system/etc/bluetooth/rtkbt.conf:system/etc/bluetooth/rtkbt.conf \
+	$(LOCAL_PATH)/system/etc/firmware/rtl8723b_config:system/etc/firmware/rtl8723b_config \
+	$(LOCAL_PATH)/system/etc/firmware/rtl8723b_fw:system/etc/firmware/rtl8723b_fw \
+	$(LOCAL_PATH)/system/etc/firmware/rtl8723bs_config:system/etc/firmware/rtl8723bs_config \
+	$(LOCAL_PATH)/system/etc/firmware/rtl8723bs_fw:system/etc/firmware/rtl8723bs_fw \
+	$(LOCAL_PATH)/system/etc/firmware/rtl8723bs_VQ0_config:system/etc/firmware/rtl8723bs_VQ0_config \
+	$(LOCAL_PATH)/system/etc/firmware/rtl8723bs_VQ0_fw:system/etc/firmware/rtl8723bs_VQ0_fw \
+	$(LOCAL_PATH)/system/etc/firmware/rtl8723bu_config:system/etc/firmware/rtl8723bu_config \
+	$(LOCAL_PATH)/system/etc/firmware/rtl8723d_config:system/etc/firmware/rtl8723d_config \
+	$(LOCAL_PATH)/system/etc/firmware/rtl8723d_fw:system/etc/firmware/rtl8723d_fw \
+	$(LOCAL_PATH)/system/etc/firmware/rtl8723ds_config:system/etc/firmware/rtl8723ds_config \
+	$(LOCAL_PATH)/system/etc/firmware/rtl8723ds_fw:system/etc/firmware/rtl8723ds_fw \
+	$(LOCAL_PATH)/system/etc/firmware/rtl8761a_config:system/etc/firmware/rtl8761a_config \
+	$(LOCAL_PATH)/system/etc/firmware/rtl8761a_fw:system/etc/firmware/rtl8761a_fw \
+	$(LOCAL_PATH)/system/etc/firmware/rtl8761at_config:system/etc/firmware/rtl8761at_config \
+	$(LOCAL_PATH)/system/etc/firmware/rtl8761at_fw:system/etc/firmware/rtl8761at_fw \
+	$(LOCAL_PATH)/system/etc/firmware/rtl8761au8192ee_fw:system/etc/firmware/rtl8761au8192ee_fw \
+	$(LOCAL_PATH)/system/etc/firmware/rtl8761au8812ae_fw:system/etc/firmware/rtl8761au8812ae_fw \
+	$(LOCAL_PATH)/system/etc/firmware/rtl8761au_fw:system/etc/firmware/rtl8761au_fw \
+	$(LOCAL_PATH)/system/etc/firmware/rtl8761aw8192eu_config:system/etc/firmware/rtl8761aw8192eu_config \
+	$(LOCAL_PATH)/system/etc/firmware/rtl8761aw8192eu_fw:system/etc/firmware/rtl8761aw8192eu_fw \
+	$(LOCAL_PATH)/system/etc/firmware/rtl8821a_config:system/etc/firmware/rtl8821a_config \
+	$(LOCAL_PATH)/system/etc/firmware/rtl8821a_fw:system/etc/firmware/rtl8821a_fw \
+	$(LOCAL_PATH)/system/etc/firmware/rtl8821as_config:system/etc/firmware/rtl8821as_config \
+	$(LOCAL_PATH)/system/etc/firmware/rtl8821as_fw:system/etc/firmware/rtl8821as_fw \
+	$(LOCAL_PATH)/system/etc/firmware/rtl8821c_config:system/etc/firmware/rtl8821c_config \
+	$(LOCAL_PATH)/system/etc/firmware/rtl8821c_fw:system/etc/firmware/rtl8821c_fw \
+	$(LOCAL_PATH)/system/etc/firmware/rtl8821cs_config:system/etc/firmware/rtl8821cs_config \
+	$(LOCAL_PATH)/system/etc/firmware/rtl8821cs_fw:system/etc/firmware/rtl8821cs_fw \
+	$(LOCAL_PATH)/system/etc/firmware/rtl8822b_config:system/etc/firmware/rtl8822b_config \
+	$(LOCAL_PATH)/system/etc/firmware/rtl8822b_fw:system/etc/firmware/rtl8822b_fw \
+	$(LOCAL_PATH)/system/etc/firmware/rtl8822bs_config:system/etc/firmware/rtl8822bs_config \
+	$(LOCAL_PATH)/system/etc/firmware/rtl8822bs_fw:system/etc/firmware/rtl8822bs_fw \
+	$(LOCAL_PATH)/system/lib/hw/audio.vr_bee_hidraw.default.so:system/lib/hw/audio.vr_bee_hidraw.default.so \
+	$(LOCAL_PATH)/system/lib/rtkbt/3dd_service.so:system/lib/rtkbt/3dd_service.so \
+	$(LOCAL_PATH)/system/lib/rtkbt/autopair_huawei.so:system/lib/rtkbt/autopair_huawei.so \
+	$(LOCAL_PATH)/system/lib/rtkbt/autopair.so:system/lib/rtkbt/autopair.so \
+	$(LOCAL_PATH)/system/lib/rtkbt/autopair_stack.so:system/lib/rtkbt/autopair_stack.so \
+	$(LOCAL_PATH)/system/lib/rtkbt/heartbeat.so:system/lib/rtkbt/heartbeat.so \
+	$(LOCAL_PATH)/system/lib/rtkbt/vr_bee1_hidraw.so:system/lib/rtkbt/vr_bee1_hidraw.so \
+	$(LOCAL_PATH)/system/lib/rtkbt/vr_bee2_hidraw.so:system/lib/rtkbt/vr_bee2_hidraw.so \
+	$(LOCAL_PATH)/system/usr/keylayout/rtkbt_virtual_hid.kl:system/usr/keylayout/rtkbt_virtual_hid.kl \
+
+
+PRODUCT_PACKAGES += \
+	Bluetooth \
+	audio.a2dp.default
diff --git a/rtkbt/system/etc/bluetooth/rtkbt.conf b/rtkbt/system/etc/bluetooth/rtkbt.conf
new file mode 100755
index 0000000..5c3fe93
--- /dev/null
+++ b/rtkbt/system/etc/bluetooth/rtkbt.conf
@@ -0,0 +1,10 @@
+# Bluetooth Device Name; NULL or comment means "ro.product.model"
+#Name=Realtek Bluetooth
+
+# Device Class
+DevClassServiceClass=0x1A
+DevClassMajorClass=0x01
+DevClassMinorClass=0x1C
+
+#Indicate USB or UART driver bluetooth
+BtDeviceNode=/dev/rtk_btusb
diff --git a/rtkbt/system/etc/firmware/rtl8723b_config b/rtkbt/system/etc/firmware/rtl8723b_config
new file mode 100755
index 0000000..5932e68
Binary files /dev/null and b/rtkbt/system/etc/firmware/rtl8723b_config differ
diff --git a/rtkbt/system/etc/firmware/rtl8723b_fw b/rtkbt/system/etc/firmware/rtl8723b_fw
new file mode 100755
index 0000000..fb32e90
Binary files /dev/null and b/rtkbt/system/etc/firmware/rtl8723b_fw differ
diff --git a/rtkbt/system/etc/firmware/rtl8723bs_VQ0_config b/rtkbt/system/etc/firmware/rtl8723bs_VQ0_config
new file mode 100755
index 0000000..574d49c
Binary files /dev/null and b/rtkbt/system/etc/firmware/rtl8723bs_VQ0_config differ
diff --git a/rtkbt/system/etc/firmware/rtl8723bs_VQ0_fw b/rtkbt/system/etc/firmware/rtl8723bs_VQ0_fw
new file mode 100755
index 0000000..d29f164
Binary files /dev/null and b/rtkbt/system/etc/firmware/rtl8723bs_VQ0_fw differ
diff --git a/rtkbt/system/etc/firmware/rtl8723bs_config b/rtkbt/system/etc/firmware/rtl8723bs_config
new file mode 100755
index 0000000..d0e3370
Binary files /dev/null and b/rtkbt/system/etc/firmware/rtl8723bs_config differ
diff --git a/rtkbt/system/etc/firmware/rtl8723bs_fw b/rtkbt/system/etc/firmware/rtl8723bs_fw
new file mode 100755
index 0000000..bbf7ed9
Binary files /dev/null and b/rtkbt/system/etc/firmware/rtl8723bs_fw differ
diff --git a/rtkbt/system/etc/firmware/rtl8723bu_config b/rtkbt/system/etc/firmware/rtl8723bu_config
new file mode 100755
index 0000000..c5ad4b1
Binary files /dev/null and b/rtkbt/system/etc/firmware/rtl8723bu_config differ
diff --git a/rtkbt/system/etc/firmware/rtl8723d_config b/rtkbt/system/etc/firmware/rtl8723d_config
new file mode 100755
index 0000000..84793ae
Binary files /dev/null and b/rtkbt/system/etc/firmware/rtl8723d_config differ
diff --git a/rtkbt/system/etc/firmware/rtl8723d_fw b/rtkbt/system/etc/firmware/rtl8723d_fw
new file mode 100755
index 0000000..c6bf13c
Binary files /dev/null and b/rtkbt/system/etc/firmware/rtl8723d_fw differ
diff --git a/rtkbt/system/etc/firmware/rtl8723ds_config b/rtkbt/system/etc/firmware/rtl8723ds_config
new file mode 100755
index 0000000..994ab69
Binary files /dev/null and b/rtkbt/system/etc/firmware/rtl8723ds_config differ
diff --git a/rtkbt/system/etc/firmware/rtl8723ds_fw b/rtkbt/system/etc/firmware/rtl8723ds_fw
new file mode 100755
index 0000000..4f87c30
Binary files /dev/null and b/rtkbt/system/etc/firmware/rtl8723ds_fw differ
diff --git a/rtkbt/system/etc/firmware/rtl8761a_config b/rtkbt/system/etc/firmware/rtl8761a_config
new file mode 100755
index 0000000..04425eb
Binary files /dev/null and b/rtkbt/system/etc/firmware/rtl8761a_config differ
diff --git a/rtkbt/system/etc/firmware/rtl8761a_fw b/rtkbt/system/etc/firmware/rtl8761a_fw
new file mode 100755
index 0000000..ac99c0c
Binary files /dev/null and b/rtkbt/system/etc/firmware/rtl8761a_fw differ
diff --git a/rtkbt/system/etc/firmware/rtl8761at_config b/rtkbt/system/etc/firmware/rtl8761at_config
new file mode 100755
index 0000000..18ef538
Binary files /dev/null and b/rtkbt/system/etc/firmware/rtl8761at_config differ
diff --git a/rtkbt/system/etc/firmware/rtl8761at_fw b/rtkbt/system/etc/firmware/rtl8761at_fw
new file mode 100755
index 0000000..756f9df
Binary files /dev/null and b/rtkbt/system/etc/firmware/rtl8761at_fw differ
diff --git a/rtkbt/system/etc/firmware/rtl8761au8192ee_fw b/rtkbt/system/etc/firmware/rtl8761au8192ee_fw
new file mode 100755
index 0000000..a4da0e4
Binary files /dev/null and b/rtkbt/system/etc/firmware/rtl8761au8192ee_fw differ
diff --git a/rtkbt/system/etc/firmware/rtl8761au8812ae_fw b/rtkbt/system/etc/firmware/rtl8761au8812ae_fw
new file mode 100755
index 0000000..607d737
Binary files /dev/null and b/rtkbt/system/etc/firmware/rtl8761au8812ae_fw differ
diff --git a/rtkbt/system/etc/firmware/rtl8761au_fw b/rtkbt/system/etc/firmware/rtl8761au_fw
new file mode 100755
index 0000000..2f5044a
Binary files /dev/null and b/rtkbt/system/etc/firmware/rtl8761au_fw differ
diff --git a/rtkbt/system/etc/firmware/rtl8761aw8192eu_config b/rtkbt/system/etc/firmware/rtl8761aw8192eu_config
new file mode 100755
index 0000000..7ca7044
Binary files /dev/null and b/rtkbt/system/etc/firmware/rtl8761aw8192eu_config differ
diff --git a/rtkbt/system/etc/firmware/rtl8761aw8192eu_fw b/rtkbt/system/etc/firmware/rtl8761aw8192eu_fw
new file mode 100755
index 0000000..9b805c0
Binary files /dev/null and b/rtkbt/system/etc/firmware/rtl8761aw8192eu_fw differ
diff --git a/rtkbt/system/etc/firmware/rtl8821a_config b/rtkbt/system/etc/firmware/rtl8821a_config
new file mode 100755
index 0000000..f049bed
Binary files /dev/null and b/rtkbt/system/etc/firmware/rtl8821a_config differ
diff --git a/rtkbt/system/etc/firmware/rtl8821a_fw b/rtkbt/system/etc/firmware/rtl8821a_fw
new file mode 100755
index 0000000..ae4e90e
Binary files /dev/null and b/rtkbt/system/etc/firmware/rtl8821a_fw differ
diff --git a/rtkbt/system/etc/firmware/rtl8821as_config b/rtkbt/system/etc/firmware/rtl8821as_config
new file mode 100755
index 0000000..524ca9e
Binary files /dev/null and b/rtkbt/system/etc/firmware/rtl8821as_config differ
diff --git a/rtkbt/system/etc/firmware/rtl8821as_fw b/rtkbt/system/etc/firmware/rtl8821as_fw
new file mode 100755
index 0000000..536cd18
Binary files /dev/null and b/rtkbt/system/etc/firmware/rtl8821as_fw differ
diff --git a/rtkbt/system/etc/firmware/rtl8821c_config b/rtkbt/system/etc/firmware/rtl8821c_config
new file mode 100755
index 0000000..2bc8ddf
Binary files /dev/null and b/rtkbt/system/etc/firmware/rtl8821c_config differ
diff --git a/rtkbt/system/etc/firmware/rtl8821c_fw b/rtkbt/system/etc/firmware/rtl8821c_fw
new file mode 100755
index 0000000..d1fa0c7
Binary files /dev/null and b/rtkbt/system/etc/firmware/rtl8821c_fw differ
diff --git a/rtkbt/system/etc/firmware/rtl8821cs_config b/rtkbt/system/etc/firmware/rtl8821cs_config
new file mode 100755
index 0000000..cf0ecd3
Binary files /dev/null and b/rtkbt/system/etc/firmware/rtl8821cs_config differ
diff --git a/rtkbt/system/etc/firmware/rtl8821cs_fw b/rtkbt/system/etc/firmware/rtl8821cs_fw
new file mode 100755
index 0000000..259c75d
Binary files /dev/null and b/rtkbt/system/etc/firmware/rtl8821cs_fw differ
diff --git a/rtkbt/system/etc/firmware/rtl8822b_config b/rtkbt/system/etc/firmware/rtl8822b_config
new file mode 100755
index 0000000..f47e7b5
Binary files /dev/null and b/rtkbt/system/etc/firmware/rtl8822b_config differ
diff --git a/rtkbt/system/etc/firmware/rtl8822b_fw b/rtkbt/system/etc/firmware/rtl8822b_fw
new file mode 100755
index 0000000..9ef0d91
Binary files /dev/null and b/rtkbt/system/etc/firmware/rtl8822b_fw differ
diff --git a/rtkbt/system/etc/firmware/rtl8822bs_config b/rtkbt/system/etc/firmware/rtl8822bs_config
new file mode 100755
index 0000000..0fe0c40
Binary files /dev/null and b/rtkbt/system/etc/firmware/rtl8822bs_config differ
diff --git a/rtkbt/system/etc/firmware/rtl8822bs_fw b/rtkbt/system/etc/firmware/rtl8822bs_fw
new file mode 100755
index 0000000..9506056
Binary files /dev/null and b/rtkbt/system/etc/firmware/rtl8822bs_fw differ
diff --git a/rtkbt/system/etc/permissions/android.hardware.bluetooth.xml b/rtkbt/system/etc/permissions/android.hardware.bluetooth.xml
new file mode 100755
index 0000000..2ac5d6c
--- /dev/null
+++ b/rtkbt/system/etc/permissions/android.hardware.bluetooth.xml
@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2013 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<!-- Adds the feature indicating support for the Bluetooth Low Energy API -->
+<permissions>
+    <feature name="android.hardware.bluetooth" />
+</permissions>
diff --git a/rtkbt/system/etc/permissions/android.hardware.bluetooth_le.xml b/rtkbt/system/etc/permissions/android.hardware.bluetooth_le.xml
new file mode 100755
index 0000000..bf5a200
--- /dev/null
+++ b/rtkbt/system/etc/permissions/android.hardware.bluetooth_le.xml
@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2013 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<!-- Adds the feature indicating support for the Bluetooth Low Energy API -->
+<permissions>
+    <feature name="android.hardware.bluetooth_le" />
+</permissions>
diff --git a/rtkbt/system/lib/hw/audio.vr_bee_hidraw.default.so b/rtkbt/system/lib/hw/audio.vr_bee_hidraw.default.so
new file mode 100755
index 0000000..5df47a2
Binary files /dev/null and b/rtkbt/system/lib/hw/audio.vr_bee_hidraw.default.so differ
diff --git a/rtkbt/system/lib/rtkbt/3dd_service.so b/rtkbt/system/lib/rtkbt/3dd_service.so
new file mode 100755
index 0000000..adc4bcf
Binary files /dev/null and b/rtkbt/system/lib/rtkbt/3dd_service.so differ
diff --git a/rtkbt/system/lib/rtkbt/autopair.so b/rtkbt/system/lib/rtkbt/autopair.so
new file mode 100755
index 0000000..af02c1e
Binary files /dev/null and b/rtkbt/system/lib/rtkbt/autopair.so differ
diff --git a/rtkbt/system/lib/rtkbt/autopair_huawei.so b/rtkbt/system/lib/rtkbt/autopair_huawei.so
new file mode 100755
index 0000000..3e1c9c5
Binary files /dev/null and b/rtkbt/system/lib/rtkbt/autopair_huawei.so differ
diff --git a/rtkbt/system/lib/rtkbt/autopair_stack.so b/rtkbt/system/lib/rtkbt/autopair_stack.so
new file mode 100755
index 0000000..4251c91
Binary files /dev/null and b/rtkbt/system/lib/rtkbt/autopair_stack.so differ
diff --git a/rtkbt/system/lib/rtkbt/heartbeat.so b/rtkbt/system/lib/rtkbt/heartbeat.so
new file mode 100755
index 0000000..c4cc9ec
Binary files /dev/null and b/rtkbt/system/lib/rtkbt/heartbeat.so differ
diff --git a/rtkbt/system/lib/rtkbt/vr_bee1_hidraw.so b/rtkbt/system/lib/rtkbt/vr_bee1_hidraw.so
new file mode 100755
index 0000000..f950103
Binary files /dev/null and b/rtkbt/system/lib/rtkbt/vr_bee1_hidraw.so differ
diff --git a/rtkbt/system/lib/rtkbt/vr_bee2_hidraw.so b/rtkbt/system/lib/rtkbt/vr_bee2_hidraw.so
new file mode 100755
index 0000000..8bc8d81
Binary files /dev/null and b/rtkbt/system/lib/rtkbt/vr_bee2_hidraw.so differ
diff --git a/rtkbt/system/usr/keylayout/rtkbt_virtual_hid.kl b/rtkbt/system/usr/keylayout/rtkbt_virtual_hid.kl
new file mode 100755
index 0000000..fa36fae
--- /dev/null
+++ b/rtkbt/system/usr/keylayout/rtkbt_virtual_hid.kl
@@ -0,0 +1 @@
+key 60     POWER